PMID- 29319595 TI - Pythium Keratitis Leading to Fatal Cavernous Sinus Thrombophlebitis. AB - PURPOSE: To report a case of Pythium insidiosum keratitis leading to fatal cavernous sinus thrombophlebitis. METHODS: Case report. RESULTS: A 70-year-old man presented with excruciating pain, redness, and diminution of vision in his left eye for 2 weeks after washing his hair with tap water. A total corneal ulcer with surrounding infiltrates and associated corneal thinning was present. Corneal scraping revealed the presence of Gram-positive cocci. KOH wet mount and in vivo confocal microscopy revealed branching hyphae. Combined antibacterial and antifungal treatment was started, but 4 days later, the ulcer showed signs of worsening with perforation for which a large therapeutic penetrating keratoplasty was done. The host cornea showed branching septate hyphae on Sabarouds Dextrose Agar. Two weeks later, the patient developed left eye proptosis with associated extraocular movement restriction. Magnetic resonance imaging of the head and orbit revealed cavernous sinus thrombophlebitis. Lid sparing partial exenteration was performed. Polymerase chain reaction revealed P. insidiosum. The patient subsequently developed a cerebrovascular attack and died of its complications. CONCLUSIONS: Ocular pythiosis may lead to cavernous sinus thrombophlebitis and can even be life threatening. Timely diagnosis and early radical surgery are of value. A high index of suspicion must be kept for P. insidiosum in cases with suspected fungal etiology not responding to conventional treatment. PMID- 29319596 TI - Obstructive Sleep Apnea Assessed by Overnight Polysomnography in Patients With Keratoconus. AB - PURPOSE: To determine the prevalence of obstructive sleep apnea (OSA) in patients with keratoconus (KCN) and to evaluate the association between the severity of KCN and OSA. METHODS: OSA was diagnosed with an overnight home sleep apnea test. As estimated by home monitoring, an apnea-hypopnea index threshold of >=5 sleep related obstructive breathing events per hour was considered suggestive of OSA. For grading KCN severity (Amsler-Krumeich classification), slit-lamp biomicroscopy, corneal topography, and pachymetry measurements were performed. Preoperative measurements were included in the analysis for patients who had undergone surgery for KCN. RESULTS: The study sample consisted of 50 consecutively enrolled patients: 33 men; mean age +/- SD 43.6 +/- 11.8 years; body mass index 29.7 +/- 7.3 kg/m; and neck circumference 40.0 +/- 3.4 cm. The overall prevalence of OSA was 38% (6 women and 13 men). Patients with OSA were older (49.8 +/- 9.3 vs. 37.5 +/- 10.8 years; P < 0.01) and had a higher body mass index (34.7 +/- 8.1 vs. 26.2 +/- 4.8 kg/m; P <0.01), neck circumference (41.2 +/- 2.6 vs. 38.7 +/- 3.6 cm; P < 0.01), and cylinder diopter (5.98 +/- 1.94 vs. 4.05 +/- 3.55 D; P = 0.045) compared with those without OSA. No significant association was found between OSA severity and ocular parameters and KCN grade. CONCLUSIONS: As measured by overnight home sleep apnea testing, OSA was 10 to 20 times more prevalent among patients with KCN than the rate reported for the general population. The rate lies between the prevalence estimated from sleep study data of self-reported diagnosis of OSA and the risk of developing OSA as determined by the Berlin Questionnaire. PMID- 29319597 TI - Repeated Same-Day Versus Single Tomography Measurements of Keratoconic Eyes for Analysis of Disease Progression. AB - PURPOSE: Corneal tomography is used to assess progression of keratoconus and to direct clinical decisions regarding corneal cross-linking. The purpose of this study was to analyze the variability of repeated Scheimpflug-tomography (Pentacam Classic; Oculus, Wetzlar, Germany) measurements of keratoconic eyes in a clinical setting and to assess the validity of such measurements as a clinical decision making tool. METHODS: Eighty keratoconic eyes of 45 patients (age range 16-32 years) were examined at baseline and after follow-up periods of 3 to 6 months using 3 consecutive tomography measurements at each visit. Minimum corneal thickness and anterior sagittal curvature map parameters were studied [simulated keratometry (K) astigmatism (SimKast); maximum simulated K-reading (SimKmax); average SimK (SimKave); maximum K-readings on the 3-mm (Kmax3) and 5-mm (Kmax5) rings; and maximum K-reading (Kmax)]. RESULTS: When comparing the first measurements at the first and second visits, respectively, 9% to 20% of eyes were classified as progressive depending on which parameter was chosen. Using the average of 3 consecutive measurements at each visit, 5% to 19% of eyes were classified as progressive. An increase in the SD of 3 consecutive measurements of SimKast (SD_SimKast) at the first visit of 1 diopter makes true progression of keratoconus 3.6 times more likely (odds ratio = 3.6; 95% confidence interval: 0.846-16.027; area under the curve = 0.70). CONCLUSIONS: The approach used to analyze progression in keratoconus, that is, single versus repeated measurements, may confer a great impact on the decision to perform corneal cross-linking treatment or not. PMID- 29319598 TI - Corneal Collagen Cross-Linking With Riboflavin and Ultraviolet A Light for Pediatric Keratoconus: Ten-Year Results. AB - PURPOSE: To assess the 10-year follow-up efficacy and safety of riboflavin ultraviolet A-induced cross-linking (CXL) in a population of pediatric patients aged 18 years and younger with progressive keratoconus (KC). METHODS: The prospective longitudinal cohort study included 62 eyes of 47 keratoconic patients undergoing epithelium-off CXL who completed 10-year follow-up. The surgical procedure was performed in all patients according to the Siena (Dresden modified) protocol. Evaluation included uncorrected distance visual acuity, corrected distance visual acuity, Scheimpflug corneal tomography, and optical coherence tomography demarcation line measurement. Follow-up measurements taken up to 10 years after treatment were compared with baseline values, and statistical analysis was performed using a 2-tailed paired sample Student t test. RESULTS: Uncorrected distance visual acuity and corrected distance visual acuity improved from 0.45 to 0.23 logarithm of the minimum angle resolution (P = 0.0001) and from 0.14 to 0.1 logarithm of the minimum angle resolution (P = 0.019). KC stability was recorded after 10 years of follow-up in nearly 80% of the patients. The overall 10-year follow-up progression rate was 24% including 13 eyes of 9 patients with Kmax progression over 1 diopter and 2 eyes of 2 patients who underwent corneal grafting. CONCLUSIONS: The study demonstrates the ability of CXL to slow down KC progression in pediatric patients, improving functional performance. Long-term stability may be correlated with CXL-induced delay in corneal collagen turnover and with spontaneous age-related KC stabilization. A 24% regression rate could be contemplated in the patients who were aged 15 years and younger at the time of inclusion in the treatment protocol. PMID- 29319599 TI - Long-Term Outcome After Penetrating Keratoplasty in a Pedigree With the G177E Mutation in the UBIAD1 Gene for Schnyder Corneal Dystrophy. AB - PURPOSE: To investigate the long-term surgical outcome after penetrating keratoplasty in 5 patients from 1 pedigree with Schnyder corneal dystrophy (SCD), resulting from the same UbiA prenyltransferase domain containing 1 (UBIAD1) mutation. METHODS: This retrospective study involved 6 eyes of 5 patients who underwent penetrating keratoplasty for treatment of SCD. Postoperative surgical outcome measures included the analysis of best-corrected visual acuity (BCVA), corneal endothelial cell density, and the rates of corneal graft rejection and disease recurrence. Genomic DNA was extracted from whole peripheral blood samples obtained from each patient at the time of surgery, and mutation analysis of the UBIAD1 gene was then performed. RESULTS: All patients were found to have the same G177E mutation in the UBIAD1 gene. Mean patient age at the time of surgery was 61.5 +/- 10.4 years (range, 49-72 yrs), and mean postoperative follow-up period was 8.8 +/- 3.1 years (range, 3-11 yrs). Preoperatively, BCVA ranged from logarithm of the minimum angle of resolution (logMAR) 1.7 to logMAR 0.22; yet, it was found that BCVA had improved to logMAR 0.02 at 3 years postoperatively. Mean corneal endothelial cell density at 3, 5, and 8 years postoperatively was 2181, 1783, and 910 cells/mm, respectively. In all eyes, no disease recurrence or corneal graft rejection was observed during the follow-up period, and graft transparency was maintained. CONCLUSIONS: Our findings show that the corneal grafts in the reported SCD pedigree remained clear with no rejection or disease recurrence over the long term. PMID- 29319600 TI - Abdominal Muscle Activation During Common Modifications of the Trunk Curl-Up Exercise. AB - The purpose of this study was to investigate effects of common modifications of trunk curl-up exercise on the involvement of the abdominal muscles, particularly the deepest muscle layer, transversus abdominis (TrA). Ten healthy females performed five different variations of the trunk curl-up at a standardized speed, varying the exercise by assuming three different arm positions and applying left and right twist. Indwelling fine-wire electromyography (EMG) electrodes were used to record from TrA, obliquus internus (OI), obliquus externus (OE) and rectus abdominis (RA) unilaterally on the right side. Increasing the load by changing the arm position during a straight trunk curl-up increased the EMG of all abdominal muscles. OI and TrA showed higher activation during right twist compared to left twist whereas OE displayed the opposite pattern. RA did not show any change in activation level between twisting directions. The apparent load dependency on the activation level of all muscles and the twisting direction dependency of all muscles except RA are in keeping with the fiber orientation of the muscles. Notably, also TrA, with a less obvious mechanical role with regards to fiber orientation, increased activation with load during the straight trunk curl-up. However, the highest activation level of TrA during the trunk curl-up was only 40 % of a maximum contraction, thus it might not be the most suitable strength training exercise for this muscle. PMID- 29319601 TI - The MoCA-Memory Index Score: An Efficient Alternative to Paragraph Recall for the Detection of Amnestic Mild Cognitive Impairment. AB - OBJECTIVE: To compare ability of 2 measures of delayed memory (word list, story paragraph) to discriminate Normal Control (NC) subjects from those with amnestic mild cognitive impairment (aMCI). METHODS: Demographic, neuropsychological, and diagnostic data contributed by 34 Alzheimer's Disease Centers to the National Alzheimer's Coordinating Center characterized 2717 individuals with a diagnosis of either NC (n=2205) or aMCI (n=512). The Montreal Cognitive Assessment-Memory Index Score (MoCA-MIS) assessed delayed word recall, and the Craft Story 21, delayed story recall. Logistic regression and receiver operator characteristic curves controlling for age, sex, and education assessed the ability of each test to differentiate NCs from subjects with aMCI. RESULTS: The MoCA-MIS had significantly better sensitivity and specificity (area under the receiver operator characteristic curve 0.83 vs. 0.80, P=0.004). At sensitivity 80%, the specificity of the MoCA-MIS was 69.1%, compared with 62.8% for the Craft Story. CONCLUSIONS: These data suggest that the MoCA-MIS, a recall score from items within the MoCA, is better at discriminating NCs from subjects with aMCI than the Craft Story. Word recall may be an efficient alternative to paragraph recall for diagnostic screening within clinical practice and research settings. PMID- 29319602 TI - An Interactional Profile to Assist the Differential Diagnosis of Neurodegenerative and Functional Memory Disorders. AB - OBJECTIVE: Specialist services for dementia are seeing an increasing number of patients. We investigated whether interactional and linguistic features in the communication behavior of patients with memory problems could help distinguish between those with problems secondary to neurological disorders (ND) and those with functional memory disorder (FMD). METHODS: In part 1 of this study, a diagnostic scoring aid (DSA) was developed encouraging linguists to provide quantitative ratings for 14 interactional features. An optimal cut-off differentiating ND and FMD was established by applying the DSA to 30 initial patient-doctor memory clinic encounters. In part 2, the DSA was tested prospectively in 10 additional cases analyzed independently by 2 conversation analysts blinded to medical information. RESULTS: In part 1, the median score of the DSA was +5 in ND and -5 in FMD (P<0.001). The optimal numeric DSA cut-off (+1) identified patients with ND with a sensitivity of 86.7% and a specificity of 100%. In part 2, DSA scores of rater 1 correctly predicted 10/10 and those of rater 2 predicted 9/10 diagnoses. CONCLUSIONS: This study indicates that interactional and linguistic features can help distinguish between patients developing dementia and those with FMD and could aid the stratification of patients with memory problems. PMID- 29319603 TI - Population Neuroscience: Dementia Epidemiology Serving Precision Medicine and Population Health. AB - Over recent decades, epidemiology has made significant contributions to our understanding of dementia, translating scientific discoveries into population health. Here, we propose reframing dementia epidemiology as "population neuroscience," blending techniques and models from contemporary neuroscience with those of epidemiology and biostatistics. On the basis of emerging evidence and newer paradigms and methods, population neuroscience will minimize the bias typical of traditional clinical research, identify the relatively homogenous subgroups that comprise the general population, and investigate broader and denser phenotypes of dementia and cognitive impairment. Long-term follow-up of sufficiently large study cohorts will allow the identification of cohort effects and critical windows of exposure. Molecular epidemiology and omics will allow us to unravel the key distinctions within and among subgroups and better understand individuals' risk profiles. Interventional epidemiology will allow us to identify the different subgroups that respond to different treatment/prevention strategies. These strategies will inform precision medicine. In addition, insights into interactions between disease biology, personal and environmental factors, and social determinants of health will allow us to measure and track disease in communities and improve population health. By placing neuroscience within a real-world context, population neuroscience can fulfill its potential to serve both precision medicine and population health. PMID- 29319604 TI - The European Society of Regional Anaesthesia and Pain Therapy/American Society of Regional Anesthesia and Pain Medicine Recommendations on Local Anesthetics and Adjuvants Dosage in Pediatric Regional Anesthesia. AB - BACKGROUND AND OBJECTIVES: Dosage of local anesthetics (LAs) used for regional anesthesia in children is not well determined. In order to evaluate and come to a consensus regarding some of these controversial topics, The European Society of Regional Anaesthesia and Pain Therapy (ESRA) and the American Society of Regional Anesthesia and Pain Medicine (ASRA) developed a Joint Committee Practice Advisory on Local Anesthetics and Adjuvants Dosage in Pediatric Regional Anesthesia. METHODS: Representatives from both ASRA and ESRA composed the joint committee practice advisory. Evidence-based recommendations were based on a systematic search of the literature. In cases where no literature was available, expert opinion was elicited. RESULTS: Spinal anesthesia with bupivacaine can be performed with a dose of 1 mg/kg for newborn and/or infant and a dose of 0.5 mg/kg in older children (>1 year of age). Tetracaine 0.5% is recommended for spinal anesthesia (dose, 0.07-0.13 mL/kg). Ultrasound-guided upper-extremity peripheral nerve blocks (eg, axillary, infraclavicular, interscalene, supraclavicular) in children can be performed successfully and safely using a recommended LA dose of bupivacaine or ropivacaine of 0.5 to 1.5 mg/kg. Dexmedetomidine can be used as an adjunct to prolong the duration of peripheral nerve blocks in children. CONCLUSIONS: High-level evidence is not yet available to guide dosage of LA used in regional blocks in children. The ASRA/ESRA recommendations intend to provide guidance in order to reduce the large variability of LA dosage currently observed in clinical practice. PMID- 29319605 TI - Epidural Hematoma Following Interlaminar Epidural Injection in Patient Taking Aspirin. AB - OBJECTIVE: We present a case report of a patient who developed an epidural hematoma following an interlaminar epidural steroid injection with no risk factors aside from old age and aspirin use for secondary prevention. CASE REPORT: A 79-year-old man developed an epidural hematoma requiring surgical treatment following an uncomplicated interlaminar epidural steroid injection performed for neurogenic claudication. In the periprocedural period, he continued aspirin for secondary prophylaxis following a myocardial infarction. CONCLUSIONS: For patients taking aspirin for primary or secondary prophylaxis, the American Society of Regional Anesthesia and Pain Medicine antiplatelet and anticoagulation guidelines for spine and pain procedures recommend a shared assessment and risk stratification when deciding to hold the medication for intermediate-risk neuraxial procedures. Cases such as this serve to highlight the importance of giving careful consideration to medical optimization of a patient even when a low or intermediate-risk procedure is planned. PMID- 29319607 TI - Longitudinal resting-state functional magnetic resonance imaging in a mouse model of metastatic bone cancer reveals distinct functional reorganizations along a developing chronic pain state. AB - Functional neuroimaging has emerged as attractive option for characterizing pain states complementing behavioral readouts or clinical assessment. In particular, resting-state functional magnetic resonance imaging (rs-fMRI) enables monitoring of functional adaptations across the brain, for example, in response to chronic nociceptive input. We have used rs-fMRI in a mouse model of chronic pain from breast cancer-derived tibial bone metastases to identify pain-induced alterations in functional connectivity. Combined assessment of behavioral readouts allowed for defining a trajectory as model function for extracting pain-specific functional connectivity changes from the fMRI data reflective of a chronic pain state. Cingulate and prefrontal cortices as well as the ventral striatum were identified as predominantly affected regions, in line with findings from clinical and preclinical studies. Inhibition of the peripheral bone remodeling processes by antiosteolytic therapy led to a reduction of pain-induced network alterations, emphasizing the specificity of the functional readouts for a developing chronic pain state. PMID- 29319606 TI - Disruption of nNOS-NOS1AP protein-protein interactions suppresses neuropathic pain in mice. AB - Elevated N-methyl-D-aspartate receptor (NMDAR) activity is linked to central sensitization and chronic pain. However, NMDAR antagonists display limited therapeutic potential because of their adverse side effects. Novel approaches targeting the NR2B-PSD95-nNOS complex to disrupt signaling pathways downstream of NMDARs show efficacy in preclinical pain models. Here, we evaluated the involvement of interactions between neuronal nitric oxide synthase (nNOS) and the nitric oxide synthase 1 adaptor protein (NOS1AP) in pronociceptive signaling and neuropathic pain. TAT-GESV, a peptide inhibitor of the nNOS-NOS1AP complex, disrupted the in vitro binding between nNOS and its downstream protein partner NOS1AP but not its upstream protein partner postsynaptic density 95 kDa (PSD95). Putative inactive peptides (TAT-cp4GESV and TAT-GESVDelta1) failed to do so. Only the active peptide protected primary cortical neurons from glutamate/glycine induced excitotoxicity. TAT-GESV, administered intrathecally (i.t.), suppressed mechanical and cold allodynia induced by either the chemotherapeutic agent paclitaxel or a traumatic nerve injury induced by partial sciatic nerve ligation. TAT-GESV also blocked the paclitaxel-induced phosphorylation at Ser15 of p53, a substrate of p38 MAPK. Finally, TAT-GESV (i.t.) did not induce NMDAR-mediated motor ataxia in the rotarod test and did not alter basal nociceptive thresholds in the radiant heat tail-flick test. These observations support the hypothesis that antiallodynic efficacy of an nNOS-NOS1AP disruptor may result, at least in part, from blockade of p38 MAPK-mediated downstream effects. Our studies demonstrate, for the first time, that disrupting nNOS-NOS1AP protein-protein interactions attenuates mechanistically distinct forms of neuropathic pain without unwanted motor ataxic effects of NMDAR antagonists. PMID- 29319608 TI - Novel approach to characterising individuals with low back-related leg pain: cluster identification with latent class analysis and 12-month follow-up. AB - Traditionally, low back-related leg pain (LBLP) is diagnosed clinically as referred leg pain or sciatica (nerve root involvement). However, within the spectrum of LBLP, we hypothesised that there may be other unrecognised patient subgroups. This study aimed to identify clusters of patients with LBLP using latent class analysis and describe their clinical course. The study population was 609 LBLP primary care consulters. Variables from clinical assessment were included in the latent class analysis. Characteristics of the statistically identified clusters were compared, and their clinical course over 1 year was described. A 5 cluster solution was optimal. Cluster 1 (n = 104) had mild leg pain severity and was considered to represent a referred leg pain group with no clinical signs, suggesting nerve root involvement (sciatica). Cluster 2 (n = 122), cluster 3 (n = 188), and cluster 4 (n = 69) had mild, moderate, and severe pain and disability, respectively, and response to clinical assessment items suggested categories of mild, moderate, and severe sciatica. Cluster 5 (n = 126) had high pain and disability, longer pain duration, and more comorbidities and was difficult to map to a clinical diagnosis. Most improvement for pain and disability was seen in the first 4 months for all clusters. At 12 months, the proportion of patients reporting recovery ranged from 27% for cluster 5 to 45% for cluster 2 (mild sciatica). This is the first study that empirically shows the variability in profile and clinical course of patients with LBLP including sciatica. More homogenous groups were identified, which could be considered in future clinical and research settings. PMID- 29319609 TI - Joint nociceptor nerve activity and pain in an animal model of acute gout and its modulation by intra-articular hyaluronan. AB - The mechanisms whereby deposition of monosodium urate (MSU) crystals in gout activates nociceptors to induce joint pain are incompletely understood. We tried to reproduce the signs of painful gouty arthritis, injecting into the knee joint of rats suspensions containing amorphous or triclinic, needle MSU crystals. The magnitude of MSU-induced inflammation and pain behavior signs were correlated with the changes in firing frequency of spontaneous and movement-evoked nerve impulse activity recorded in single knee joint nociceptor saphenous nerve fibers. Joint swelling, mechanical and cold allodynia, and hyperalgesia appeared 3 hours after joint injection of MSU crystals. In parallel, spontaneous and movement evoked joint nociceptor impulse activity raised significantly. Solutions containing amorphous or needle-shaped MSU crystals had similar inflammatory and electrophysiological effects. Intra-articular injection of hyaluronan (HA, Synvisc), a high-MW glycosaminoglycan present in the synovial fluid with analgesic effects in osteoarthritis, significantly reduced MSU-induced behavioral signs of pain and decreased the enhanced joint nociceptor activity. Our results support the interpretation that pain and nociceptor activation are not triggered by direct mechanical stimulation of nociceptors by MSU crystals, but are primarily caused by the release of excitatory mediators by inflammatory cells activated by MSU crystals. Intra-articular HA decreased behavioral and electrophysiological signs of pain, possibly through its viscoelastic filtering effect on the mechanical forces acting over sensitized joint sensory endings and probably also by a direct interaction of HA molecules with the transducing channels expressed in joint nociceptor terminals. PMID- 29319610 TI - The effectiveness of online pain resources for health professionals: a systematic review with subset meta-analysis of educational intervention studies. AB - Online educational interventions are increasingly developed for health professionals and students, although graduate and undergraduate medical curricula often contain limited information about how to assess and manage pain. This study reviews the literature on the effectiveness of pain-related online educational resources. Studies were identified through a search of Medline, PsychINFO, Web of Science, CINAHL, PubMed, Scopus, Cochrane Library, Google Scholar, and OpenGrey databases. Search terms included 3 concept blocks: (1) type of intervention online education, computer-based, e-learning, web-based, and internet-based; (2) population-pediatrician, physician, nurse, psychologist, and medical; and (3) outcome-pain*. Thirty-two studies (13 randomised controlled trials, 5 nonrandomised controlled trials, and 14 single-group pre-post studies) were included. Ten provided data for inclusion in a series of between-groups meta analyses. After intervention, participants receiving online instruction had significantly greater knowledge compared with those receiving training as usual/alternative training (Hedges' g = 0.80, 95% confidence interval [CI]: 0.12 1.49), and students had significantly greater skills compared with students receiving training as usual (g = 1.34, CI: 0.38-2.30). No significant differences were found for confidence/competence (g = 0.02, CI: -0.79 to 0.84) or attitudes/beliefs (g = 0.16, CI: -0.48 to 0.79). Although online educational resources show promise in improving learner knowledge, considerable heterogeneity exists between studies in quality, design, educational content, and outcomes. Furthermore, methodologically robust RCTs are required to establish the effectiveness of online educational interventions and a greater understanding of the key features of successful online resources, including cognitive interactivity. Few studies assessed health outcomes for patients, remaining a major priority for future investigations. PMID- 29319611 TI - Comparison of somatosensory cortex excitability between migraine and "strict criteria" tension-type headache: a magnetoencephalographic study. AB - Tension-type headache (TTH) and migraine are both common types of headaches. Despite distinct symptoms, TTH and migraine are highly comorbid and exhibit many clinical similarities. This study enrolled consecutive patients with TTH and age- and sex-matched patients with migraine and healthy controls to investigate whether TTH and migraine are similar in brain excitability change assessed by magnetoencephalography. Patients with TTH were excluded if they reported any headache features or associated symptoms of migraine. In response to paired-pulse electrical stimulations, the gating responses obtained from the contralateral primary somatosensory cortex differed between groups. The first response, which reflected the preactivation excitability, was smaller in the migraine group (29.54 +/- 2.31 pAm) compared with the TTH group (79.76 +/- 8.36, P < 0.001) and controls (59.95 +/- 4.26, P = 0.006). The gating ratio (ie, the ratio of the second vs first response strength) was 0.76 +/- 0.03 in controls, 0.88 +/- 0.03 in the migraine group, 0.93 +/- 0.03 in the TTH group, with a significant increase in TTH (P = 0.003 vs controls) suggesting central disinhibition. The area under the receiver operating characteristic curve of the first response strength in differentiating between TTH and migraine was 0.85 +/- 0.44, indicating excellent discrimination. In conclusion, TTH and migraine are different clinical entities in view of somatosensory cortex excitability. The preactivation excitability assessed through somatosensory gating is a potential marker for differentiating between TTH and migraine. PMID- 29319612 TI - Mitigating Risk of Immunosuppression by Immune Monitoring: Are We There? PMID- 29319613 TI - Cell Therapy for Severe Hemophilia: Study Has Come Full Circle. PMID- 29319614 TI - Necessity of Interrupted Time Series Analysis in Evaluating the Impact of PHS Risk Identification and Introduction of Direct-Acting Antiviral Therapy and Share 35 Implementation. PMID- 29319615 TI - Clinical and Pathological Features of Plasma Cell-Rich Acute Rejection After Kidney Transplantation. AB - BACKGROUND: Plasma cell-rich acute rejection (PCAR) is a rare type of allograft rejection characterized by the presence of mature plasma cells. In general, the prognosis of PCAR is poor, and its clinical and pathological features remain unclear. METHODS: We performed a retrospective observational study and compared allograft survival between kidney transplant recipients who developed PCAR and those who did not develop PCAR. We further analyzed clinical and pathological risk factors for allograft failure in PCAR patients. RESULTS: Of 1956 recipients, 40 developed PCAR. There was a higher prevalence of deceased donor transplants (27.5% vs 11.7%, P = 0.0059), longer median total ischemia time (99 minutes; interquartile range, 71-144 vs 77 minutes; interquartile range, 59-111; P = 0.0309), and lower prevalence of ABO-incompatible transplantation (7.5% vs 22.5%; P = 0.0206) in patients with PCAR than in those without PCAR.Multivariate Cox regression analysis showed that development of PCAR was associated with allograft loss (hazard ratio, 8.03; 95% confidence interval, 3.89-14.80; P < 0.0001).We classified PCAR according to the Banff 2015 criteria into a borderline change group, a T cell-mediated rejection (TCMR) group, an antibody-mediated rejection (AMR) or suspected of having AMR (AMR/sAMR) group, and a mixed rejection (TCMR/AMR) group. The AMR/sAMR group was associated with a lower rate of allograft survival without significant difference (log-rank test, P = 0.1692). CONCLUSIONS: The results indicated that PCAR was an independent risk factor for allograft loss. PCAR presented with all types of rejection in the Banff 2015 criteria, and AMR/sAMR was associated with poor allograft survival. PMID- 29319616 TI - Preserving Treg Function: Beyond mTOR Inhibitors. PMID- 29319617 TI - Biomarkers and Kidney Transplant: Time for a New Paradigm? PMID- 29319618 TI - Effect of Conversion to CTLA4Ig on Tacrolimus-Induced Diabetic Rats. AB - BACKGROUND: The effect of conversion to cytotoxic T lymphocyte-associated protein 4 immunoglobulin (CTLA4Ig) treatment on tacrolimus (TAC)-induced renal dysfunction is well known, but its effect on TAC-induced diabetes mellitus (DM) is still undetermined. In the present study, we tested the diabetogenicity of CTLA4Ig and evaluated the effect of conversion to CTLA4Ig treatment on TAC induced diabetic rats. METHODS: We tested diabetogenicity of CTLA4Ig by escalating doses (0.25, 0.5, 1, 2, and 4 mg/kg weekly) for 4 weeks. In the conversion study, we administered TAC (1.5 mg/kg) for 3 weeks and confirmed TAC induced DM by intraperitoneal glucose tolerance test. Thereafter, TAC administration was continued, withdrawn, or replaced by CTLA4Ig treatment (1 or 2 mg/kg) for additional 3 weeks. The effect of CTLA4Ig on TAC-induced DM in vivo and in vitro was evaluated by assessing pancreatic islet function, histopathology, oxidative stress, apoptosis, and macrophage infiltration. RESULTS: Intraperitoneal glucose tolerance test in the CTLA4Ig groups did not differ from the control group. In addition, plasma insulin level, glucose-induced insulin secretion, and islet viability were not different between the CTLA4Ig and control groups. In the conversion study, TAC withdrawal ameliorated pancreatic islet dysfunction compared with the TAC group, and conversion to CTLA4Ig further improved pancreatic islet function compared with the TAC withdrawal group. TAC induced oxidative stress, apoptotic cell death, and infiltration of macrophages decreased with TAC withdrawal, and CTLA4Ig conversion further reduced those values. In the in vitro study, CTLA4Ig decreased TAC-induced pancreatic islet cell death and reactive oxygen species production. CONCLUSIONS: CTLA4Ig was not diabetogenic, and conversion to CTLA4Ig reduced TAC-induced pancreatic islet injury. PMID- 29319619 TI - History of Marijuana Use Does Not Affect Outcomes on the Liver Transplant Waitlist. AB - BACKGROUND: Data are limited on marijuana use and its impact on liver transplant (LT) waitlist outcomes. We aimed to assess the risk of waitlist mortality/delisting and likelihood of LT among prior marijuana users and to determine the prevalence and factors associated with marijuana use. METHODS: Retrospective cohort of adults evaluated for LT over 2 years at a large LT center. Marijuana use was defined by self-report in psychosocial assessment and/or positive urine toxicology. Ongoing marijuana use was not permitted for LT listing during study period. RESULTS: Eight hundred eighty-four adults were evaluated, and 585 (66%) were listed for LT (median follow-up, 1.4 years; interquartile range, 0.5-2.0). Prevalence of marijuana use was 48%, with 7% being recent users and 41% prior users. Marijuana use had statistically significant association with alcoholic cirrhosis (incidence rate ratio [IRR], 1.9) and hepatitis C (IRR, 2.1) versus hepatitis B, tobacco use (prior IRR, 1.4; recent IRR, 1.3 vs never), alcohol use (never IRR 0.1; heavy use/abuse IRR 1.2 vs social), and illicit drug use (prior IRR, 2.3; recent, 1.9 vs never). In adjusted competing risk regression, marijuana use was not associated with the probability of LT (prior hazard ratio [HR], 0.9; recent HR, 0.9 vs never) or waitlist mortality/delisting (prior HR, 1.0; recent HR, 1.0 vs never). However, recent illicit drug use was associated with higher risk of death or delisting (HR, 1.8; P = 0.004 vs never). CONCLUSIONS: Unlike illicit drug use, marijuana use was not associated with worse outcomes on the LT waitlist. Prospective studies are needed to assess ongoing marijuana use on the LT waitlist and post-LT outcomes. PMID- 29319620 TI - Liver Transplantation for NASH-Related Hepatocellular Carcinoma Versus Non-NASH Etiologies of Hepatocellular Carcinoma. AB - BACKGROUND: Liver transplant (LT) for nonalcoholic steatohepatitis (NASH) related hepatocellular carcinoma (HCC) is not well characterized in the literature. The aim of the study was to examine characteristics and outcomes of patients who had LT for NASH-HCC (NASH) versus HCC from other liver diseases (non-NASH). METHODS: Using a 2-center retrospective design, all patients from 2004 to 2014 that received LT for HCC were analyzed. Subgroup analysis stratified patients according to Milan criteria. RESULTS: Nine hundred twenty-nine patients were transplanted for HCC. Sixty (6.5%) of 929 had HCC in the context of NASH. There were no significant differences between groups for pretransplant or explant tumor characteristics. The actuarial 1-, 3- and 5-year overall survival was 98%, 96%, and 80% in NASH versus 95%, 84%, and 78% in non-NASH (P = 0.1). No differences in tumor recurrence were observed in patients within and beyond Milan in the NASH group. Multivariate Cox regression demonstrated NASH status to be a protective factor for recurrence among patients with tumors beyond Milan (hazard ratio, 0.21; 95% confidence interval, 0.05-0.86; P = 0.029). CONCLUSION: After LT, outcomes are similar between NASH and non-NASH etiologies for HCC. The hypothesis that patients with more advanced HCC tumors in the context of NASH may have more favorable outcomes after LT has been generated, but requires further study. PMID- 29319621 TI - Selective CD28 Inhibition Modulates Alloimmunity and Cardiac Allograft Vasculopathy in Anti-CD154-Treated Monkeys. AB - BACKGROUND: Selective CD28 inhibition is actively pursued as an alternative to B7 blockade using cytotoxic T lymphocyte antigen 4 Ig based on the hypothesis that the checkpoint immune regulators cytotoxic T lymphocyte antigen 4 and programmed death ligand 1 will induce tolerogenic immune signals. We previously showed that blocking CD28 using a monovalent nonactivating reagent (single-chain anti-CD28 Fv fragment linked to alpha-1 antitrypsin [sc28AT]) synergizes with calcineurin inhibitors in nonhuman primate (NHP) kidney and heart transplantation. Here, we explored the efficacy of combining a 3-week "induction" sc28AT treatment with prolonged CD154 blockade. METHODS: Cynomolgus monkey heterotopic cardiac allograft recipients received sc28AT (10 mg/kg, d0-20, n = 3), hu5C8 (10-30 mg/kg, d0-84, n = 4), or combination (n = 6). Graft survival was monitored by telemetry. Protocol biopsies and graft explants were analyzed for International Society of Heart and Lung Transplantation acute rejection grade and cardiac allograft vasculopathy score. Alloantibody, T-cell phenotype and regulatory T cells were analyzed by flow cytometry. Immunochemistry and gene expression (NanoString) characterized intra-graft cellular infiltration. RESULTS: Relative to modest prolongation of median graft survival time with sc28AT alone (34 days), hu5C8 (133 days), and sc28AT + hu5C8 (141 days) prolonged survival to a similar extent. CD28 blockade at induction, added to hu5C8, significantly attenuated the severity of acute rejection and cardiac allograft vasculopathy during the first 3 months after transplantation relative to hu5C8 alone. These findings were associated with decreased proportions of circulating CD8 and CD3CD28 T cells, and modulation of inflammatory gene expression within allografts. CONCLUSIONS: Induction with sc28AT promotes early cardiac allograft protection in hu5C8 treated NHPs. These results support further investigation of prolonged selective CD28 inhibition with CD40/CD154 blockade in NHP transplants. PMID- 29319622 TI - A High Portal Venous Pressure Gradient Increases Gut-Related Bacteremia and Consequent Early Mortality After Living Donor Liver Transplantation. AB - BACKGROUND: Portal hypertension (PHT) is defined as a portal venous pressure gradient (PVPG) exceeding 5 mm Hg, which results in severe clinical manifestations. However, the validity of intraoperative PVPG monitoring and the association between PHT and bacterial translocation after liver transplantation remain unclear. METHODS: In this retrospective study, 223 patients who underwent primary adult-to-adult living donor liver transplantation from 2008 to 2015 were divided into 2 groups based on the PVPG at the end of the operation: high PVPG (>5 mm Hg, n = 69) and low PVPG (<=5 mm Hg, n = 154). The clinical factors were compared between the groups, and the association between a high PVPG and posttransplant bacteremia/bacterial infections was investigated. RESULTS: The high PVPG group had a significantly higher incidence of bacteremia (46% vs 24%, P < 0.001), higher 90-day mortality rate (20% vs 7%, P = 0.002), and poorer 1-year survival (71% vs 86%, P = 0.006). The high PVPG group had a particularly higher incidence of bacteremia caused by "gut bacteria" including Enterobacteriaceae, Bacteroides spp., and Enterococcus spp. (29% vs 12%, P = 0.003). Multivariate analysis showed that a PVPG greater than 5 mm Hg (odds ratio, 2.55; 95% confidence interval, 1.18-5.55; P = 0.017) was an independent predictor of bacteremia due to gut bacteria. CONCLUSIONS: Monitoring of the PVPG is clinically meaningful for predicting patients' prognosis. In particular, a high PVPG with a threshold of 5 mm Hg at the end of adult-to-adult living donor liver transplantation may increase gut-related bacteremia through the mechanism of bacterial translocation, resulting in early mortality. PMID- 29319623 TI - B Cells in Transplantation of Rat, Mouse, and Man. PMID- 29319624 TI - Long-term Outcome of 1-step Kidney Transplantation and Bladder Augmentation Procedure in Pediatric Patients. AB - BACKGROUND: Guidelines for bladder augmentation (BA) in kidney transplantation (KT) recipients are not well-defined. In our center, simultaneous BA with KT (BA KT) is performed. We assessed transplantation outcomes of this unique extensive procedure. METHODS: A case-control single center retrospective study. Transplantation outcomes were compared with those of KT recipients who did not need BA. RESULTS: Compared with 22 patients who underwent KT only, for 9 who underwent BA-KT, surgical complications and the need for revision in the early posttransplantation period were similar; early graft function was better: estimated glomerular filtration rate, 96.5 +/- 17.1 versus 79.4 +/- 16.6 mL/min at 0 to 6 months (P = 0.02); posttransplantation clean intermittent catheterization was more often needed: by 78% (7/9) versus 13% (3/22); and asymptomatic bacteriuria was more common: 100% versus 9% during the first 6 months (P < 0.001), 55% versus 9% (P = 0.02) and 66.6% versus 9% during the first and second years, respectively (P = 0.004). Urinary tract infection (UTI) incidence was also higher: 100% versus 23% during the first 6 months and 44% versus 9% during the second year posttransplantation. Graft function deteriorated significantly in the BA-KT group by the fifth posttransplantation year: estimated glomerular filtration rate was 47.7 +/- 39.7 mL/min versus 69 +/- 21.3 mL/min, with only 6 (66%) of 9 functioning grafts versus 100% in the KT only group. Causes of graft loss were noncompliance with drug therapy in 2 patients and recurrent UTIs in 2 patients. CONCLUSIONS: Excellent short-term outcome for simultaneous BA-KT is threatened by graft loss due to a high prevalence of UTIs and patient noncompliance with the demanding complex posttransplantation therapy. PMID- 29319625 TI - Early Hospital Readmission: The Canary in the Coal Mine? PMID- 29319626 TI - Publication Rates of Oral Abstract Presentations at the 2014 International Congress of The Transplantation Society. PMID- 29319627 TI - Opioid Prescription, Morbidity, and Mortality in US Transplant Recipients. AB - BACKGROUND: Centers for Disease Control and Prevention guidelines recommend caution in prescribing opioids for chronic pain. The characteristics of opioid prescription (OpRx) among kidney transplant (KTx) recipients have not been described in a national population. METHODS: We assessed OpRx prevalence among prevalent KTx recipients, and associated duration (long-term, defined as >=90 days in a year) and dosing (in morphine milligram equivalents per day of <50, 50 89, and >=90) with outcomes, death and graft loss, among incident KTx recipients using 2006-2010 US Renal Data System files, including Medicare Part D for medication ascertainment. Cox models controlled for recipient factors. RESULTS: Of 36,486 KTx recipients in the 2010 prevalent cohort, approximately 14.6% had long-term OpRx. The strongest association with long-term OpRx after KTx was long term OpRx before KTx (64%; adjusted odds ratio, 95% confidence interval, 95.2, 74.2-122.1). Incident KTx recipients with long-term OpRx had increased risk of mortality and graft loss compared with those without OpRx or short-term OpRx after KTx. This risk was highest among recipients with long-term OpRx doses of >=90 morphine milligram equivalents or higher per day (adjusted hazard ratio, 95% confidence interval, 1.61, 1.24-2.10 for death, and 1.33, 1.05-1.67 for graft loss, respectively). CONCLUSIONS: In contrast to either no or short-term OpRx, long-term, and especially long-term high-dose OpRx, is associated with increased risk of death and graft loss in US KTx recipients. Causal relationships cannot be inferred, and OpRx may be an illness marker. Nevertheless, efforts to treat pain effectively in KTx recipients with less toxic interventions and decrease OpRx deserve consideration. PMID- 29319628 TI - Heart Transplantation in a Left Ventricular Assist Device Recipient After Donor's Extracorporeal Membrane Oxygenation Support: Is It Safe? PMID- 29319629 TI - Patterns of Discordance Between Pretransplant Imaging Stage of Hepatocellular Carcinoma and Posttransplant Pathologic Stage: A Contemporary Appraisal of the Milan Criteria. AB - BACKGROUND: Patients with hepatocellular carcinoma (HCC) exceeding Milan criteria on explant pathology are at increased risk of recurrence and death. Discordance between contemporary magnetic resonance imaging (MRI) and explant pathology, and preoperative characteristics predictive of discordance are not well understood. METHODS: Patients who underwent orthotopic liver transplantation for HCC after preoperative MRI were identified in a prospectively collected institutional database (January 2003 to December 2013). Patients were dichotomized to "within" or "outside" Milan criteria by both imaging and explant pathologic evaluation. Binary logistic regression and Kaplan-Meier methodology were used to identify independent predictors of imaging/pathologic discordance and its impact on posttransplant survival. RESULTS: Of 318 patients with HCC meeting Milan criteria by MRI at the time of orthotopic liver transplantation, 248 (78.0%) remained within a pathological correlate of Milan criteria on explant examination. Understaging was associated with worse median recurrence-free survival (64.0 months vs 140.0 months, P = 0.002) and overall survival (96.0 months vs 143.0 months, P = 0.005), and did not vary between patients exceeding criteria due to tumor explant greater than 5 cm, more than 3 tumor foci, or a tumor greater than 3 cm in the setting of multifocality. Discordance was independently associated with an increasing serum alpha fetal protein level (odds ratio, 2.82; 95% confidence interval, 1.37-5.79; P = 0.005). CONCLUSIONS: Underestimating HCC burden before liver transplant remains frequent despite contemporary imaging technologies. Patients with an increasing alpha fetal protein before transplantation may benefit from more frequent testing or novel neoadjuvant therapies. PMID- 29319630 TI - Exposure to Ambient Ultrafine Particles and Nitrogen Dioxide and Incident Hypertension and Diabetes. AB - BACKGROUND: Previous studies reported that long-term exposure to traffic-related air pollution may increase the incidence of hypertension and diabetes. However, little is known about the associations of ultrafine particles (<=0.1 MUm in diameter) with these two conditions. METHODS: We conducted a population-based cohort study to investigate the associations between exposures to ultrafine particles and nitrogen dioxide (NO2) and the incidence of diabetes and hypertension. Our study population included all Canadian-born residents aged 30 to 100 years who lived in the City of Toronto, Canada, from 1996 to 2012. Outcomes were ascertained using validated province-wide databases. We estimated annual concentrations of ultrafine particles and NO2 using land-use regression models and assigned these estimates to participants' annual postal code addresses during the follow-up period. Using random-effects Cox proportional hazards models, we calculated hazard ratios (HRs) and 95% confidence intervals (CIs) for ultrafine particles and NO2, adjusted for individual- and neighborhood-level covariates. We considered both single- and multipollutant models. RESULTS: Each interquartile change in exposure to ultrafine particles was associated with increased risk of incident hypertension (HR = 1.03; 95% CI = 1.02, 1.04) and diabetes (HR = 1.06; 95% CI = 1.05, 1.08) after adjusting for all covariates. These results remained unaltered with further control for fine particulate matter (<=2.5 MUm; PM2.5) and NO2. Similarly, NO2 was positively associated with incident diabetes (HR = 1.06; 95% CI = 1.05, 1.07) after controlling for ultrafine particles and PM2.5. CONCLUSIONS: Exposure to traffic-related air pollution including ultrafine particles and NO2 may increase the risk for incident hypertension and diabetes. See video abstract at, http://links.lww.com/EDE/B337. PMID- 29319631 TI - A Practical Example Demonstrating the Utility of Single-world Intervention Graphs. PMID- 29319632 TI - Extracorporeal Membrane Oxygenation for Pertussis: Predictors of Outcome Including Pulmonary Hypertension and Leukodepletion. AB - OBJECTIVE: The recent increase of pertussis cases worldwide has generated questions regarding the utility of extracorporeal membrane oxygenation for children with pertussis. We aimed to evaluate factors associated with extracorporeal membrane oxygenation outcome. DESIGN: The study was designed in two parts: a retrospective analysis of the Extracorporeal Life Support Organization Registry to identify factors independently linked to outcome, and an expanded dataset from individual institutions to examine the association of WBC count, pulmonary hypertension, and leukodepletion with survival. SETTING: Extracorporeal Life Support Organization Registry database from 2002 though 2015, and contributions from 19 international centers. PATIENTS: Two hundred infants from the Extracorporeal Life Support Organization Registry and expanded data on 73 children. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Of the 200 infants who received extracorporeal membrane oxygenation for pertussis, only 56 survived (28%). In a multivariable logistic regression analysis, the following variables were independently associated with increased chance of survival: older age (odds ratio, 1.43 [1.03-1.98]; p = 0.034), higher PaO2/FIO2 ratio (odds ratio, 1.10 [1.03-1.17]; p = 0.003), and longer intubation time prior to the initiation of extracorporeal membrane oxygenation (odds ratio, 2.10 [1.37-3.22]; p = 0.001). The use of vasoactive medications (odds ratio, 0.33 [0.11-0.99]; p = 0.047), and renal neurologic or infectious complications (odds ratio, 0.21 [0.08 0.56]; p = 0.002) were associated with increased mortality. In the expanded dataset (n =73), leukodepletion was independently associated with increased chance of survival (odds ratio, 3.36 [1.13-11.68]; p = 0.03) while the presence of pulmonary hypertension was adverse (odds ratio, 0.06 [0.01-0.55]; p = 0.01). CONCLUSIONS: The survival rate for infants with pertussis who received extracorporeal membrane oxygenation support remains poor. Younger age, lower PaO2/FIO2 ratio, vasoactive use, pulmonary hypertension, and a rapidly progressive course were associated with increased mortality. Our results suggest that pre-extracorporeal membrane oxygenation leukodepletion may provide a survival advantage. PMID- 29319633 TI - Risk Factors for Healthcare-Associated Infections After Pediatric Cardiac Surgery. AB - OBJECTIVES: Healthcare-associated infections after pediatric cardiac surgery are significant causes of morbidity and mortality. We aimed to identify the risk factors for the occurrence of healthcare-associated infections after pediatric cardiac surgery. DESIGN: Retrospective, single-center observational study. SETTING: PICU at a tertiary children's hospital. PATIENTS: Consecutive pediatric patients less than or equal to 18 years old admitted to the PICU after cardiac surgery, between January 2013 and December 2015. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: All the data were retrospectively collected from the medical records of patients. We assessed the first surgery during a single PICU stay and identified four common healthcare-associated infections, including bloodstream infection, surgical site infection, pneumonia, and urinary tract infection, according to the definitions of the Centers for Disease Control and Prevention and National Healthcare Safety Network. We assessed the pre-, intra-, and early postoperative potential risk factors for these healthcare-associated infections via multivariable analysis. In total, 526 cardiac surgeries (394 patients) were included. We identified 81 cases of healthcare-associated infections, including, bloodstream infections (n = 30), surgical site infections (n = 30), urinary tract infections (n = 13), and pneumonia (n = 8). In the case of 71 of the surgeries (13.5%), at least one healthcare-associated infection was reported. Multivariable analysis indicated the following risk factors for postoperative healthcare-associated infections: mechanical ventilation greater than or equal to 3 days (odds ratio, 4.81; 95% CI, 1.89-12.8), dopamine use (odds ratio, 3.87; 95% CI, 1.53-10.3), genetic abnormality (odds ratio, 2.53; 95% CI, 1.17-5.45), and delayed sternal closure (odds ratio, 3.78; 95% CI, 1.16-12.8). CONCLUSIONS: Mechanical ventilation greater than or equal to 3 days, dopamine use, genetic abnormality, and delayed sternal closure were associated with healthcare-associated infections after pediatric cardiac surgery. Since the use of dopamine is an easily modifiable risk factor, and may serve as a potential target to reduce healthcare-associated infections, further studies are needed to establish whether dopamine negatively impacts the development of healthcare associated infections. PMID- 29319634 TI - Hyperoxia and Hypocapnia During Pediatric Extracorporeal Membrane Oxygenation: Associations With Complications, Mortality, and Functional Status Among Survivors. AB - OBJECTIVES: To determine the frequency of hyperoxia and hypocapnia during pediatric extracorporeal membrane oxygenation and their relationships to complications, mortality, and functional status among survivors. DESIGN: Secondary analysis of data collected prospectively by the Collaborative Pediatric Critical Care Research Network. SETTING: Eight Collaborative Pediatric Critical Care Research Network-affiliated hospitals. PATIENTS: Age less than 19 years and treated with extracorporeal membrane oxygenation. INTERVENTIONS: Hyperoxia was defined as highest PaO2 greater than 200 Torr (27 kPa) and hypocapnia as lowest PaCO2 less than 30 Torr (3.9 kPa) during the first 48 hours of extracorporeal membrane oxygenation. Functional status at hospital discharge was evaluated among survivors using the Functional Status Scale. MEASUREMENTS AND MAIN RESULTS: Of 484 patients, 420 (86.7%) had venoarterial extracorporeal membrane oxygenation and 64 (13.2%) venovenous; 69 (14.2%) had extracorporeal membrane oxygenation initiated during cardiopulmonary resuscitation. Hyperoxia occurred in 331 (68.4%) and hypocapnia in 98 (20.2%). Hyperoxic patients had higher mortality than patients without hyperoxia (167 [50.5%] vs 48 [31.4%]; p < 0.001), but no difference in functional status among survivors. Hypocapnic patients were more likely to have a neurologic event (49 [50.0%] vs 143 (37.0%]; p = 0.021) or hepatic dysfunction (49 [50.0%] vs 121 [31.3%]; p < 0.001) than patients without hypocapnia, but no difference in mortality or functional status among survivors. On multivariable analysis, factors independently associated with increased mortality included highest PaO2 and highest blood lactate concentration in the first 48 hours of extracorporeal membrane oxygenation, congenital diaphragmatic hernia, and being a preterm neonate. Factors independently associated with lower mortality included meconium aspiration syndrome. CONCLUSIONS: Hyperoxia is common during pediatric extracorporeal membrane oxygenation and associated with mortality. Hypocapnia appears to occur less often and although associated with complications, an association with mortality was not observed. PMID- 29319635 TI - Low-Dose Epinephrine Boluses for Acute Hypotension in the PICU. AB - OBJECTIVES: To describe the use of low-dose bolus epinephrine in critically ill children during an acute hypotensive episode or prearrest condition. DESIGN: Institutional Review Board approved, single-center, retrospective medical chart review. SETTING: Large medical-surgical PICU within a freestanding, tertiary care children's hospital. PATIENTS: Patients admitted to the PICU between June 1, 2015, and June 1, 2016, who received low-dose (<= 5 ug/kg) IV bolus epinephrine. INTERVENTIONS: None. MEASUREMENT AND MAIN RESULTS: Twenty-four resuscitation episodes (63 doses; 19 patients) were analyzed. Median age and weight of patients were 9 years (interquartile range, 1-15 yr) and 38.5 kg (interquartile range, 12 54.8 kg). Median Pediatric Risk of Mortality III score was 17 (interquartile range, 10-27). Mean epinephrine dose was 1.3 +/- 1.1 ug/kg. Median number of doses per patient was two. If more than one dose was provided, median dosing interval was 6.5 minutes. Heart rate and mean arterial blood pressure were compared at the time of epinephrine administration and 1-4 minutes (median = 1 min) following administration. Heart rate changed from 130 +/- 41 to 150 +/- 33 beats/min (p < 0.05), and mean arterial blood pressure changed from 51 +/- 17 to 75 +/- 27 mm Hg (p < 0.001). Variability in mean arterial blood pressure response was observed; nonresponders required extracorporeal membrane oxygenation; 66% of doses resulted in up to 100% mean arterial blood pressure increase, and 21% of doses resulted in greater than 100% mean arterial blood pressure increase. Doses below 1 ug/kg were associated with a lower mean arterial blood pressure increase than doses between 1 and 5 ug/kg (mean percent change in mean arterial blood pressure = 6.6% vs 60%, respectively). Children less than or equal to 2 years old had the greatest percentage increase in heart rate and mean arterial blood pressure. CONCLUSIONS: Provision of low-dose bolus epinephrine during periods of acute hypotension can result in a significant increase in mean arterial blood pressure and heart rate. This dosing strategy may provide temporary stabilization while other therapies are added or adjusted, but further research is needed. PMID- 29319636 TI - Optimal Antiretroviral Prophylaxis in Infants at High Risk of Acquiring HIV: A Systematic Review. AB - INTRODUCTION: The risk of perinatal HIV infection can be dramatically reduced through maternal antiretroviral (ARV) therapy and infant ARV postnatal prophylaxis. The 2013 World Health Organization guidelines recommended 4-6 weeks of nevirapine or zidovudine as postnatal prophylaxis, with possible extension to 12 weeks for high-risk breastfed infants. A systematic review was undertaken to determine if there is evidence for the World Health Organization to recommend enhanced or extended prophylaxis for high-risk infants. METHODS: Cochrane CENTRAL, EMBASE, PubMed databases from 2005 to 2015, as well as conference on retroviruses and opportunistic infections and international aids society abstracts were searched. Cohort studies and randomized controlled trials examining the use of combination or prolonged regimens in HIV-exposed infants were included. A total of 1185 studies were screened by title and abstract and 45 full-text articles were examined in further detail. RESULTS AND DISCUSSION: Of the 4 included studies, 3 examined multidrug prophylaxis regimens in formula-fed, high-risk HIV-exposed infants. Multidrug regimens were shown to significantly reduce transmission rates, compared with single-drug regimens; however, there was no significant difference between 2- and 3-drug regimens. An randomized controlled trial examining prolonged ARV prophylaxis in a breastfed population showed that 6 months of nevirapine resulted in lower HIV transmission rates compared with a standard 6-week nevirapine regimen. CONCLUSIONS: The limited available evidence suggests that using combination ARV regimens in high-risk infants reduces intrapartum transmission and that using prolonged prophylaxis in breastfed infants reduces breastfeeding transmission rates. However, the additional benefit of combination or prolonged regimens in the context of maternal ARV therapy remains unclear. PMID- 29319637 TI - Denouement. PMID- 29319638 TI - Anomalous Sphenoid Diploe Vein: Case Report Highlighting the Value of Careful CT Evaluation Prior to Decompression Surgery. AB - Lateral bony decompression may offer several biomechanical advantages and has become a commonly used surgical approach. Preoperative imaging plays a key role in surgical planning by providing information about the locoregional anatomy. The marrow space of the greater wing of the sphenoid is a focal point of the decompression surgery based on the volume that it occupies. Several vessels pass through the sphenoid bone, but most are small caliber vessels. The authors describe a case of an uncommon anatomical variant of the cranial diploic venous system in which the anterior transverse diploic vessel traverses the marrow space of the sphenoid. The vessel was identified on preoperative CT evaluation. Despite anticipation of potential bleeding, lateral decompression was abandoned due to difficulties in maintaining hemostasis which compromised the view for safe surgical progress. PMID- 29319639 TI - Mild Complications or Unusual Persistence of Porcine Collagen and Hyaluronic Acid Gel Following Periocular Filler Injections. AB - The purpose of this study was to describe the histopathologic appearance of dermal eyelid fillers that were unexpectedly encountered in ophthalmic plastic surgery samples from patients with mild eyelid disfigurements, and to review eyelid cases with complications that had previously been described in the literature. A retrospective histopathologic study with Alcian blue, elastic, and Masson trichrome stains of 2 cases that were submitted to the Ocular Pathology Department was conducted, and a critical review of previously published cases of the histopathologic characteristics of dermal filler material in the periocular region was also conducted. Two periocular tissue samples were found to contain dermal filler material. In one case, porcine collagen appeared as amorphous or indistinctly microfibrillar aggregates that stained light blue with the Masson trichrome method. In the other case, hyaluronic acid gel appeared as vivid blue amorphous pools of material in extracellular locules after staining with the Alcian blue method. An inflammatory response was not observed in either case. Patients who undergo facial filler procedures may, at a later time, require a surgical excisional procedure from which a specimen is generated. Previously injected dermal filler that the patient neglected to mention may be present in the pathologic sample, potentially perplexing the unsuspecting pathologist. Both ophthalmic plastic surgeons and ocular pathologists should be aware of the histopathologic features of dermal fillers. It is helpful if a surgeon who submits a specimen to the pathology service makes note of any known prior use of facial filler material or is alert to its possible presence when unfamiliar foreign material is discovered in the dermis of the eyelids. PMID- 29319640 TI - Orbital Extranodal Marginal Zone Lymphoma Following Radiotherapy: A Report of 2 Cases. AB - PURPOSE: To present 2 patients in whom orbital radiation preceded the development of periorbital extranodal marginal zone lymphoma by more than a decade and to investigate the likelihood of this representing irradiation-induced malignancy. METHODS: Retrospective chart review and histopathologic study with immunohistochemistry of 2 cases. RESULTS: The first patient was a 58-year-old woman who developed an orbital mass within the vicinity of the lateral rectus muscle 17 years after external beam proton radiation therapy for an inferotemporal choroidal melanoma. The second patient was a 32-year-old woman who developed a mass in the right lacrimal gland 12 years after external beam photon radiation therapy for chronic inflammatory dacryoadenitis. Histopathologic and immunohistochemical studies confirmed orbital extranodal marginal zone lymphoma in both cases. Retrospective review of older histopathologic slides from the second patient revealed underlying immunoglobulin G4-related disease. DISCUSSION: The unusual sequence of events in these 2 cases raises the question of whether orbital radiation may in rare instances promote the development of orbital extranodal marginal zone lymphoma. The literature pertaining to irradiation induced secondary malignancy in the orbit is reviewed. CONCLUSIONS: Clinicians should consider the possibility of a secondary malignancy when evaluating a patient with an orbital mass and a history of prior local radiation exposure. PMID- 29319641 TI - Significance of Early Postoperative Eyelid Position on Late Postoperative Result in Mueller's Muscle Conjunctival Resection and External Levator Advancement Surgery. AB - PURPOSE: The purpose of this study was to determine whether advancement of the levator aponeurosis in external levator resection surgery or Mueller's muscle and conjunctiva in Mueller's muscle conjunctival resection (MMCR) surgery has a differential effect on variation in eyelid position during the postoperative period. METHODS: In this retrospective observational cohort study, 2 groups of patients were defined. The first underwent MMCR surgery without tarsectomy by surgeon 1. The second underwent external levator resection without dissection posterior to the levator aponeurosis by surgeon 2. Marginal reflex distance (MRD1) was calculated based on digital photographs at baseline, 1 week postoperatively and at 3-month follow up. The primary outcome measure was change in MRD1 over time. The secondary outcome was defined as the proportion of patients with minimal early postoperative change (change of MRD1 less than 0.5 mm at 1 week postoperatively). Repeated measures analysis of variance, t test, and chi-square analyses were performed. RESULTS: Of the 114 eyes in the sample, there were 68 in the MMCR group and 46 in the external levator resection group. A significant interaction between group and time was noted (p < 0.05), indicating change in MRD1 over time was different between the groups. Bonferroni corrected multiple comparisons yielded significant differences between each time point for MMCR surgery (p < 0.01). No difference in MRD1 was noted for the external levator resection group from the early to late postoperative visit. Comparing each time point across groups revealed significantly lower MRD1 for the MMCR group at the early postoperative visit (p < 0.01). Preoperative and late postoperative MRD1 did not significantly differ between the groups. Regarding the secondary outcome, patients undergoing MMCR surgery were 3.7* as likely to demonstrate <0.5 mm of change in MRD1 at week 1 (p < 0.05). When considering the 39.7% (n = 27) MMCR patients in this category, 59.3% (n = 16) went on to show an MRD1 increase >1 mm from the early postoperative to the late postoperative time points. CONCLUSIONS: Both external levator resection and MMCR can effectively elevate the eyelid in cases of primary involutional ptosis, and have similar late postoperative results. The authors found that MMCR cases undergo greater change between the early and late postoperative period, suggesting the process of eyelid elevation after MMCR may be dynamic, involving postoperative physiologic modification. PMID- 29319642 TI - Ring in the New Year With Exciting STN Projects. PMID- 29319643 TI - Burnout, Perceived Stress, and Job Satisfaction Among Trauma Nurses at a Level I Safety-Net Trauma Center. AB - Nurses are at the forefront of our health care delivery system and have been reported to exhibit a high level of burnout. Burnout and stress in trauma nurses at a safety-net hospital can negatively impact patient care. Safety-net hospitals are confronted with unique social, financial, as well as resource problems that can potentially make the work environment frustrating. The purpose of this study was to explore the levels of burnout, stress, and job satisfaction in nurses providing care to trauma patients at a Level I safety-net trauma center. A cross sectional survey design was used to investigate principal factors including personal and professional demographics, burnout, perceived stress, and job satisfaction. Trauma nurses working at a Level I safety-net trauma center are stressed and exhibited moderate degree of burnout. The extent of emotional exhaustion experienced by the nurses varied with work location and was highest in surgical intensive care unit nurses. The level of job satisfaction in terms of opportunities for promotion differed significantly by race and the health status of the nurses. Satisfaction with coworkers was lowest in those nurses between the ages of 60-69 years. Female nurses were more satisfied with their coworkers than male nurses. In addition, the study revealed that significant relationships exist among perceived stress, burnout, and job satisfaction. Work environment significantly impacts burnout, job satisfaction, and perceived stress experienced by trauma nurses in a safety-net hospital. Nursing administration can make an effort to understand the levels of burnout and strategically improve work environment for trauma nurses in order to minimize stressors leading to attrition and enhance job satisfaction. PMID- 29319644 TI - Improving Thermoregulation for Trauma Patients in the Emergency Department: An Evidence-Based Practice Project. AB - Extensive evidence exists on the association between hypothermia and increased morbidity and mortality in trauma patients. Gaps in practice related to temperature assessment have been identified in literature, along with limited personnel knowledge regarding management of patients with accidental hypothermia. An interdisciplinary team identified gaps in practice in our institution regarding temperature assessment and documentation of rewarming and initiated an evidence-based practice project to change practice at our institution. The goals were to decrease time to temperature assessment, increase core temperature assessment, and increase implementation of appropriate rewarming methods. This project used the Iowa Model of Evidence-Based Practice to provide a framework for execution and evaluation. We conducted a literature review to address all aspects of hypothermia, including incidence, associated and contributing factors, prevention, recognition, and treatment. This evidence-based knowledge was then applied to clinical practice through staff education and training, equipment availability, and environmental adjustments. More patients with hypothermia and hyperthermia were identified in 2017, as compared with 2016. There was a significant increase in core temperature assessment from 4% in 2016 to 23% in 2017 (p < .001). Blanket use in normothermic patients increased in 2017 (p = .002). This project is an example of how nurses can utilize an evidence-based practice model to translate research into clinical practice. Best practice interventions regarding temperature assessment and rewarming measures for trauma patients can be successfully implemented with negligible cost. Further research should be dedicated to examine barriers to implementation and adherence to evidence-based practice interventions. PMID- 29319645 TI - Improving Thermoregulation for Trauma Patients in the Emergency Department: An Evidence-Based Practice Project. PMID- 29319646 TI - Effect of Telenursing on Outcomes of Provided Care by Caregivers of Patients With Head Trauma After Discharge. AB - Telenursing is a suitable tool for increasing health-related awareness of the caregivers for a better home care. But its efficacy may be affected by several factors. Considering the important complications of head trauma injury and high rate of readmission, we aimed to assess the effect of telenursing on care provided by the family members of patients with head trauma.This randomized controlled trial investigated 72 patients with head trauma, who were randomly allocated to intervention and control groups (36 patients in each group). The caregivers in both groups were provided with 1-hr face-to-face training session on patients' home care and educational booklets. The patients in the intervention group were followed up every week through phone calls by the telenurse for 12 weeks, who recorded the patient's status, as well. Caregivers in the intervention group could call the telenurse any time they desired. The health status of the control group was followed once by a phone call after 12 weeks. Data on patients' readmission and pressure ulcer (based on Norton's scale) rate and time were compared between the groups and analyzed using SPSS software, version 19. Thirty three patients with a mean +/- SD age of 31.12 +/- 10.83 years were studied in the control group and 35 patients with a mean +/- SD age of 34.11 +/- 12.34 years in the intervention group (p = .098). None of the patients in the intervention group were readmitted, whereas 2 patients in the control group were readmitted s(p = .139). Risk of pressure ulcer did not differ between the groups (p = .583). Telenursing had no significant effect in readmission and decubitus prevention for patients with head trauma. Considering the chronic nature of the illness, a longer follow-up period is deemed necessary for an accurate conclusion. PMID- 29319647 TI - Transition to Critical Care Practice Within an Academic-Service Partnership: A Case Report of the First 3 Years of Clinical Immersion in Trauma-Burn and Neuroscience Critical Care. AB - In response to regulators of nursing education and the Institute of Medicine, an academic-service partnership was formed between a research-intensive school of nursing and a tertiary health care facility. In that partnership, clinical experiences occurred mostly within 1 organization. This case report showcases the development, implementation, and revisions within our capstone immersion course, designed to ease the new graduates' transition into practice, including transitions to critical care nursing. Herein, we highlight our successes and challenges of implementing the clinical component within 2 critical care units focused on trauma and neurosurgical care of complex patients. Its purpose is to describe the planning and orientation phase, illustrate the mentoring processes used to achieve the educational outcomes, and describe the benefits and challenges of such an immersion experience. Our redesigned clinical immersion course in high-acuity nursing is facilitated by our partnership and resulted in improved RN-NCLEX rates, facilitation of best practices, and ease of transition into novice graduate nurse roles. PMID- 29319648 TI - Resuscitative Endovascular Balloon Occlusion of the Aorta for Hemorrhage Control in Trauma Patients: An Evidence-Based Review. AB - Traditionally, resuscitative efforts for uncontrolled noncompressible torso hemorrhage are achieved by cross-clamping the proximal aorta via thoracotomy to deliver temporary hemodynamic stability during injury repair. A less commonly used method of promoting early resuscitation and hemorrhagic control in trauma patients is resuscitative endovascular balloon occlusion of the aorta (REBOA). The focus of this literature review is to examine the effectiveness of REBOA in the management of noncompressible pelvic hemorrhage when compared with traditional methods of hemorrhage control in trauma patients. A literature search was performed by using the PubMed database to explore studies that defined the efficacy of REBOA or compared the use of REBOA with resuscitative thoracotomy with aortic cross-clamping for hemorrhage control. Studies encompassed in the review included 3 experimental studies utilizing swine, 2 retrospective studies that reviewed data collected from procedures performed in empirical situations, and a case series that described the implementation of REBOA. Trauma patients with noncompressible torso hemorrhage that is intervened with REBOA have higher mean arterial pressures and systolic blood pressures, require fewer boluses of intravenous fluids and vasopressors, avoid severe acidosis and ischemia, and have significantly lower rates of mortality, thus ensuring enhanced long-term outcomes. Evidence suggests that hemodynamic stability, physiological effects, and mortality rates are improved in patients who receive REBOA for torso hemorrhage control when compared with traditional methods. PMID- 29319650 TI - Decreasing Radiation Exposure in Pediatric Trauma Related to Cervical Spine Clearance: A Quality Improvement Project. PMID- 29319649 TI - Decreasing Radiation Exposure in Pediatric Trauma Related to Cervical Spine Clearance: A Quality Improvement Project. AB - STUDY DESIGN: Quality improvement project. OBJECTIVES: Reduce the amount of radiation exposure in the pediatric trauma population 5 years of age and older in relation to cervical spine clearance. BACKGROUND: The evaluation of pediatric cervical spine injuries must be accurate and timely to avoid missed injuries. The difficult clinical examination in pediatric trauma patients necessitates the use of radiologic examinations to avoid missing catastrophic injuries. However, exposure to radiation at an early age increases the pediatric patients' risk of developing cancer (R. A. ). METHODS: A retrospective chart review was conducted to assess radiation exposure in pediatric patients requiring evaluation for cervical spine clearance. Surgical staff and emergency department physicians received education on the risks related to pediatric radiation exposure and information related to the institution's diagnostic trends for cervical spine clearance. An algorithm was then developed to assist with determining the necessary imaging study for cervical spine clearance. Radiation exposure was monitored following initial education and use of the algorithm to determine its effect on radiation exposure. RESULTS: The retrospective chart review identified cervical spine computed tomography (CT) in 34%, with an average radiation exposure of 3.5 mSv. Following education and introduction of an algorithm, 18% of patients underwent CT for cervical spine clearance with an average radiation exposure of 3.2 mSv, representing a 47% decrease in the use of CT. CONCLUSION: Staff education and the use of an algorithm show promise in the reduction of radiation exposure and provide safe, effective clearance of the cervical spine in pediatric trauma. PMID- 29319651 TI - Proper Education on Spinal Orthotics: A Way to Minimize Associated Complications. AB - Spinal orthotic bracing is a common modality for treating nonoperative spinal fractures with risks. This study aimed to assess the effect of an intervention on critical care nurses to improve their clinical knowledge and comfort level of managing patients. A literature review was conducted regarding common complications associated with spinal orthotics. This information was compiled and used to create a questionnaire and spinal orthotic course for nurses. Pre- and postassessments of nurses' knowledge regarding spinal orthotics were conducted. A total of 197 nurses completed the presentation. The ability to correctly identify thoracolumbosacral orthotics (TLSO), lumbosacral orthotics (LSO) and cervico thoracic orthotics (CTO) all significantly increased. Regarding the clinical knowledge, the right answer to the question whether or not halo vest needed to be removed for cardiopulmonary resuscitation increased from 45.2% to 100% (p < .0001), and the correct answer to the question whether or not TLSO braces need to be worn at all times in patients with spinal precautions increased from 62.4% to 100% (p < .0001). Nurses reported that their comfort level of taking care of patients with spinal precautions increased from 94.4% before the presentation to 100% after the presentation. The quality improvement project seemed to improve the critical care nurses' ability to correctly identify different type of braces and their comfort level of managing patients with spinal precautions. PMID- 29319652 TI - Pain Assessment in Mechanically Ventilated, Noncommunicative Severe Trauma Patients. AB - The aim of this study was to measure pain levels in noncommunicative patients with severe trauma who required tracheal suctioning and mobilization and to determine the utility of the Behavioral Indicators of Pain Scale (ESCID) in these cases. The pain scores for the procedures were recorded on Days 1, 3, and 6 of the patients' stay in the intensive care unit. These assessments were performed at 3 moments: before, during, and after the application of the procedures. Because of the longitudinal character of the study, data were fitted into a multivariate model using the Generalized Estimating Equations method. The sample of 124 patients comprised 77.4% males and 22.6% females with an average age of 45.93 (SD = 16.43) years. A significant increase (p < .01) in the ESCID score was observed during the application of the procedures that produced similar pain levels. Kappa coefficient value obtained for interobserver agreement of ESCID scale scores during the application of care procedures at the intervals being evaluated was greater than 0.84, which should be interpreted as almost perfect. The ESCID scores increased during 2 care procedures that are frequently carried out in intensive care units and indicated that they produced similar pain levels. PMID- 29319653 TI - Posttraumatic Stress Syndrome: What Is It? AB - Readily defined as symptoms consistent with posttraumatic stress disorder (PTSD), but that occur earlier than 30 days after experiencing the traumatic event, posttraumatic stress syndrome (PTSS) is now acknowledged to be a serious health issue. Even so, PTSS often goes unrecognized until an official diagnosis of PTSD is made. Screening tools such as the PTSS-14 have proven reliable in identifying people with PTSS who are at risk of developing PTSD. Through early recognition, providers may be able to intervene, thus alleviating or reducing the effects of a traumatic experience. PMID- 29319654 TI - Trauma and Intensive Care Nursing Knowledge and Attitude of Foley Catheter Insertion and Maintenance. AB - In the acute care setting, the majority of urinary tract infections are associated with indwelling urinary catheters. Despite guidelines for proper use, catheter-associated urinary tract infections (CAUTIs) continue to occur in critically ill/injured patients. There is a paucity of data on the translation between CAUTI prevention education and behavioral change. This project evaluated nurse's clinical knowledge and attitude toward Foley catheter insertion and maintenance to determine the benefits of addressing gaps in knowledge and inconsistencies in attitude through education.A prospective cohort study was conducted with registered nurses from the emergency room, trauma/surgical, and medical intensive care units. Participant's clinical knowledge and attitude toward Foley catheter usage and CAUTIs were evaluated using a 20-question survey tool before and after a CAUTI education program.Forty-eight nurses completed the presurvey, educational training, and postsurvey. The mean postsurvey score was significantly higher (86.9 +/- 8.3%) than the presurvey score (76.0 +/- 12.3%) for the knowledge section of the survey. There was no marked difference in participant attitude following the educational training, with mean presurvey and postsurvey scores of 91.3 +/- 7.0% and 89.8 +/- 5.3%, respectively. After the course, participants were more confident in their clinical knowledge; however, perception regarding CAUTI prevention did not improve. A series of unannounced rounding observations before and after the intervention showed an improvement in proper Foley catheter maintenance.Catheter-associated urinary tract infection prevention education was an effective countermeasure to address gaps in clinical knowledge, but modifying attitudes was difficult to achieve. In the short term, the training appeared to improve proper maintenance in clinical practice. PMID- 29319655 TI - Superior Capsular Reconstruction with a Partial Rotator Cuff Repair: A Case Report. AB - CASE: Chronic massive irreparable rotator cuff tears remain challenging to treat. We present the case of a 70-year-old active and healthy woman who presented with 6 months of worsening shoulder pain and function; she had experienced considerable deterioration over the past 2 months. Nonoperative management of the massive rotator cuff tear was not successful. Superior capsule reconstruction (SCR) was performed with a partial rotator cuff repair. CONCLUSION: SCR is an exciting advancement for the chronic massive irreparable rotator cuff tear, one of the more challenging problems encountered by shoulder surgeons. Our patient was doing well at the 1-year follow-up and was very satisfied with the outcome. PMID- 29319656 TI - Isolated Rhabdomyolysis of the Infraspinatus Muscle Following the CrossFit "Sissy Test": A Report of Two Cases. AB - CASE: Following the completion of a CrossFit-style challenge (the "Sissy Test"), 2 patients presented with severe pain and swelling over the posterior aspect of the scapula. Magnetic resonance imaging demonstrated isolated edema of the infraspinatus muscle in both patients; the compartments were compressible. Neurovascular checks and observation of range of motion were performed. The patients were treated nonoperatively and were discharged with the diagnosis of overuse syndrome with rhabdomyolysis of the infraspinatus muscle. CONCLUSION: With marked increase in the popularity of extreme fitness, monitoring for rhabdomyolysis and potential renal dysfunction is essential. PMID- 29319657 TI - Sciatic Nerve Entanglement Around a Femoral Prosthesis During Closed Reduction of a Dislocated Total Hip Prosthesis: The Role of Metal-Suppression MRI: A Case Report. AB - CASE: A 68-year-old woman who had undergone a right total hip arthroplasty presented with a right posterior hip dislocation, and subsequently developed an ipsilateral sciatic nerve palsy after closed reduction. Magnetic resonance imaging (MRI) with metal suppression demonstrated sciatic nerve entanglement around the prosthetic femoral neck. A sciatic nerve release was performed, resulting in poor early neurologic recovery. CONCLUSION: Sciatic nerve entanglement following closed reduction of a dislocated total hip prosthesis is a rare injury. Assessment of neurovascular status before and after reduction is imperative. We recommend prompt MRI with metal suppression in patients with acute neurologic symptoms following reduction of a dislocated hip prosthesis to evaluate for acute nerve pathology and assess the need for emergency surgery. PMID- 29319658 TI - Reply. PMID- 29319659 TI - Residual Neurological Symptoms After Peripheral Nerve Blocks for Pediatric Knee Surgery. AB - BACKGROUND: Peripheral nerve blocks (PNBs) provide excellent pain control and reduce the need for systemic analgesics in orthopaedic surgery. PNBs rarely cause complications; however, a few studies of adults have reported neurological complications during the early postoperative period. We investigated complications associated with the use of PNBs during pediatric knee surgery. METHODS: We reviewed the medical records of all 121 children (aged <=18 y) who underwent knee surgery by 1 orthopaedic surgeon between October 2014 and September 2016. One hundred of these patients had PNBs. The primary outcome of interest was postoperative neurological symptoms. Other study parameters were patient characteristics, surgical details, tourniquet use/duration of use, PNB guidance method and anatomic location, and PNB-associated procedural complications (eg, blood loss, anesthetic neurotoxicity). Data were analyzed using Student t tests and Fisher exact tests, with significance at P<0.05. RESULTS: Of the 100 patients with PNBs, 23 had persistent lower-extremity paresthesias postoperatively. Most paresthesias were attributed to the surgical procedure; however, at first follow-up (mean, 1.6+/-0.4 wk) 6 patients had paresthesias and other neurological symptoms proximal to the knee in a distribution pattern consistent with the PNB. Three of these were unresolved at last follow-up (mean, 56+/-37 wk). All neurological symptoms were associated with femoral nerve blocks. The 6 patients with suspected PNB-associated neurological symptoms had a significantly higher mean BMI (31+/-5.5) than the 94 patients without symptoms (23+/-6.1; P=0.002). Obesity was associated with PNB-associated neurological symptoms (P=0.002), as was female sex (P<0.001). No significant differences were found in terms of age, surgery duration, or tourniquet use/duration of use. Most PNB procedures used ultrasound guidance, and no procedural complications were reported. CONCLUSIONS: Compared with previous studies, we report a higher rate (6%) of PNB-associated neurological symptoms in children after knee surgery with PNBs. Obesity and female sex were associated with persistent neurological symptoms in the distribution pattern of the PNB. LEVEL OF EVIDENCE: Level III (retrospective comparative study). PMID- 29319660 TI - Obesity's Influence on Operative Management of Pediatric Supracondylar Humerus Fractures. AB - BACKGROUND: As childhood obesity remains an ongoing issue for the United States there has been an increasing number of studies detailing its effect on fracture complexity, management, and outcomes. This study utilizes a national database to examine whether obese children with supracondylar humerus fractures are more likely to require open reduction and internal fixation than nonobese children. METHODS: The Healthcare Cost and Utilization Project Kid's Inpatient Database of 2003, 2006, 2009, 2012 were queried for pediatric supracondylar humerus fractures [International Classification of Disease (ICD-9), 812.41] between 2 and 12 years. Patients were separated into those undergoing closed reduction percutaneous pinning (CRPP), open reduction internal fixation (ORIF), or both. Obesity was determined by comorbidity and ICD-9 coding (ICD-9, 278.00, 278.01). Univariable and multivariable logistic regression models were utilized with P<0.05 considered significant. RESULTS: Between 2003 and 2012, 31,905 patients between the ages of 2 and 12 years sustained supracondylar humerus fractures. In total, 105 patients (0.3%) were obese. A majority of patients, 27,658 (86.7%), underwent CRPP. Odds for ORIF increased in association with age, obesity, white race, and private insurance. Significant association was found between age and obesity (P<0.05) in those undergoing ORIF. Obese children between 2 and 7 years of age had no difference in ORIF or CRPP compared with normal-weight children. Those between 8 and 12 years who were obese were significantly more likely to undergo ORIF (OR, 4.29; 95% confidence interval, 1.78-10.36). CONCLUSIONS: Supracondylar humerus fractures sustained in obese children between 8 and 12 years are over 4 times more likely to require ORIF compared with normal-weight children of the same age. Providers should identify and counsel older obese children and their families regarding the potential for increased difficulty in fracture management that may require open surgical intervention. LEVEL OF EVIDENCE: Level IV-case series. PMID- 29319661 TI - Observed Length Increases of Magnetically Controlled Growing Rods are Lower Than Programmed. AB - BACKGROUND: Magnetically controlled growing rods (MCGRs) are increasingly used in the treatment of early onset scoliosis (EOS). Few studies have reported whether desired lengthening can reliably be achieved, or if prior spine instrumentation and large tissue depths affect lengthening. In this clinical study of EOS patients, it was hypothesized that increases in rod length would equal programmed increases, patients with prior spine instrumentation would lengthen less than patients without prior surgery, and larger tissue depths would decrease lengthening success. METHODS: A retrospective chart review was conducted on EOS patients with single and dual MCGRs placed between April 2014 to September 2015 and distracted at a single institution. Rod distraction was measured at each visit using ultrasound. Differences between programmed and actual distraction for each patient, and between groups with and without prior spine instrumentation, were determined by 2-tailed t tests. Regression and correlation were used to determine the relationship between tissue depth and length increases. RESULTS: Thirty-one patients were included, 18 males, 13 females, age 8.1 (+/-2.5) years, with major curves measuring 60 (+/-14.6) degrees at time of MCGR insertion. In the 12 patients with prior instrumentation, time from initial growing rod placement to MCGR insertion was 23.1 (+/-10.6) months. The number of surgical procedures before MCGR insertion was 2.8 (+/-2.0). Total length increase relative to the programmed distraction was 86% (+/-21) (P<0.001). Length increases for patients with and without prior surgery were 87% (+/-23) and 86% (+/-19), respectively (P>0.9). Total lengthening was inversely proportional to tissue depth (r=0.38, P<0.01); the decrease in lengthening achieved was 2.1%/mm of tissue depth. CONCLUSIONS: Increases in rod length were 14% lower than the programmed distraction. Prior instrumentation did not impact the amount of rod distraction. Greater distance between the rod and the skin surface negatively affected the magnitude of distraction. PMID- 29319662 TI - Historical Analysis of Bibliometric Trends in the Journal of Pediatric Orthopaedics With a Particular Focus on Sex. AB - BACKGROUND: Orthopaedics is the clinical discipline with the lowest percentage of female residents and faculty. Pediatric orthopaedics has a higher percentage of women than other orthopaedic subspecialties. It was the purpose of this study to examine bibliometric trends in the Journal of Pediatric Orthopaedics (JPO) with a specific focus on sex. METHODS: A bibliometeric analysis for the years 2015, 2005, 1995, 1985, 1981 was performed. The names of first and corresponding authors; corresponding author position; country of origin; number of institutions, countries, authors, printed pages, and references was tabulated. Author sex was identified for the first and corresponding authors using the "Baby Name Guesser" (www.gpeters.com/names/baby-names.php). A P<0.05 was considered significant. RESULTS: There were 746 publications; 68.7% were from North America. The average number of authors, corresponding author position, collaborating institutions, countries, and number of references increased, whereas the number of printed pages decreased. Asia had the greatest number of authors (4.4), with Australia/New Zealand the fewest (3.4). Sex was determined for 98.3% of the first authors and 98.5% of the corresponding authors. There was a significant increase in the number of female first authors over time (5.9% to 25.6%, P<10), especially in Europe and North America. There were significant increase in the number of female corresponding authors over time (5.8% to 17.6%, P=0.000009). There was a significant trend to have a greater percentage of both female first and corresponding authors over time (P=0.0005) with a reverse trend for both male first and corresponding authors (P<10). CONCLUSIONS: In this study, we noted that the number of female first and corresponding authors in Journal of Pediatric Orthopaedics has been steadily increasing. This should result in more female pediatric orthopaedic surgeons in academic faculty positions. PMID- 29319663 TI - [Regional ophthalmological cluster as a resource basis for the process and the procedure of specialist accreditation]. AB - : Since 2016, phased introduction of specialist accreditation has been launched. Many issues like how training at regional accreditation centers (RACs) should be organized - for applicants applying for primary specialized accreditation as residents in ophthalmology (2018) or periodic accreditation as practicing ophthalmologists (2021) - are yet debatable. AIM: to provide organizational and educational resources for arranging accreditation of ophthalmologists at the background of improving the quality of medical care in a federal subject of the Russian Federation. MATERIAL AND METHODS: The study object was the process and the procedure of accreditation, the study subject - the system of specialist accreditation. METHODS: bibliographical, analytical, and expert. Methodological basis for tasks solving: mobilization of an independent organizational structure, that is, the regional ophthalmological scientific-educational cluster (ROSEC). RESULTS: Three complex problems have been defined that require solution. 1. Discrepancies between accreditation procedures depending on the type of accreditation. The absence of practical skills assessment within the periodical accreditation procedure and low availability of innovative simulation systems impede the achievement of the declared goals of accreditation. 2. The absence of a clear order and criteria for portfolio assessment as well as a legal format of its formation during non-interrupted medical education (NIME) demands active management. 3. There is still a lack of appropriate organizational, educational, material technical, and personnel support of the accreditation system. The proposed organizational and methodological approaches are aimed at solving issues of accreditation support, proper functioning of RACs, and improving the quality and regional availability of NIME. CONCLUSION: Systematic approach effectively solves the problem of resource support of accreditation. ROSEC should be regarded as the provision basis for complex of all stages of ophthalmologist accreditation and proper functioning of RACs. ROSEC involvement is highly advisable. PMID- 29319664 TI - [Differential diagnostic OCT-criteria of acute and chronic central serous chorioretinopathy]. AB - : Principal differences in natural history, therapeutic approaches, and functional prognosis of acute and chronic central serous chorioretinopathy (CSC) requires that they were distinguished. AIM: to define differential diagnostic criteria for acute and chronic CSC basing on the chorioretinal complex analysis by EDI-optical coherence tomography (OCT). MATERIAL AND METHODS: A retrospective analysis was performed that included data of 112 patients with CSC, who were assigned to either the 'acute' (52 patients) or 'chronic' (60 patients) group depending on symptoms duration (3 months) and fluorescein angiography findings. With the enhanced depth imaging (EDI) module mounted on OCT (Spectralis, Heidelberg, Germany), the structure of the chorioretinal complex was studied. RESULTS: In acute CSC, the height of the neuroepithelium detachment (310.73+/ 113.63 MUm) was greater than that in chronic CSC (205.68+/-90.80 MUm), p=0.03. The frequency of subretinal deposits also differed (17.3% and 100% of cases, respectively), p<0.01. The subfoveal choroidal thicknesses were similar (462.7+/ 110.7 and 494.7+/-132.1 MUm, respectively, p=0.6), however, in acute CSC, diffuse thickening of the choroid was noted (39 patients, 75% of cases), while chronic CSC was marked by local dilatation of the Haller's layer (39 eyes, 65% of cases). The diameter of hyporeflective pockets in the Haller's layer in the 'acute' (324+/-98.1 MUm) and 'chronic' (352.0+/-84.3 MUm) groups correlated with choroidal thicknesses (r=0.68, r=0.75). Hyperreflective intrachoriodal dots were more common in the 'chronic' group (acute - 1.9%, chronic - 68.3%), so did hyperreflective vascular walls -13.5% and 68.3%, respectively, p<0.01. Dome shaped RPE detachments were observed equally often in both groups (acute - 67.3%, chronic - 68.3%, p=0.9), while the 'double-layer sign' was only characteristic of chronic CSC (86.7%). CONCLUSION: OCT criteria of acute CSC include a dome-shaped detachment of neuroepithelium and diffuse thickening of the choroid in the absence of deposits; of chronic CSC - subretinal deposits, local dilatation of the Haller's layer vessels, hyperreflective vascular walls, intrachoroidal dots, and the 'double-layer sign'. PMID- 29319665 TI - [Clinical and functional results of one-step phaco surgery and central descemetorhexis for cataract and Fuchs primary endothelial corneal dystrophy]. AB - : Poor visual function associated with Fuchs endothelial corneal dystrophy (FECD) is one of the main indications for keratoplasty. Reports of successful visual rehabilitation of patients with spontaneous or scheduled removal of the Descemet's membrane and the endothelium or donor material adhesion failure, suggest this research direction perspective. AIM: to evaluate the potential as well as clinical and functional outcomes of phacoemulsification with central circular descemetorhexis in patients with Fuchs endothelial corneal dystrophy. MATERIAL AND METHODS: A total of 19 patients aged 51-84 years were included. The preoperative best corrected visual acuity averaged 0.32+/-0.19, endothelial cells density - 629.6+/-336.9 cells/mm2, and central corneal pachymetry - 587.8+/-44.8 um. After phacoemulsification with IOL implantation, a 4 mm tap was created from the epithelial side of the cornea. Central circular descemetorhexis was done using a microhook. The membrane was removed with microforceps. RESULTS: On day 1, there was central corneal edema matching the circular defect in the Descemet's membrane. As many as 26.3% of patients demonstrated rapid responses to the treatment, which implies that corneal transparency and visual improvement were achieved by the end of the first month after surgery. In other 26.3% of patients, full corneal transparency was not achieved and, therefore, endothelium transplantation had to be performed. The main group included 12 patients. At 12 months, the best corrected visual acuity was 0.66+/-0.29, central pachymetry - 569.27+/-63.74 um, endothelial cells density - 634.00+/-170.41 cells/mm2. CONCLUSION: In 63.8% of patients, visual rehabilitation was achieved without endothelial transplantation, which provides new prospects for tissue-saving technologies in patients with endothelial corneal dystrophy. PMID- 29319666 TI - [Visual rehabilitation of patients with large post-traumatic defects of the anterior eye segment through iris-lens diaphragm implantation]. AB - : The diversity of methodological approaches and lack of pathogenetically reasonable tactics for patients with combined ocular injuries became the basis for the development and systematization of surgical rehabilitation stages of patients, in whom post-traumatic cataract is combined with post-traumatic aniridia and corneal scarring. AIM: to construct a visual rehabilitation approach to patients with post-traumatic defects of the anterior eye segment following optical-reconstructive surgery that involved implantation of an iris-lens diaphragm (ILD). MATERIAL AND METHODS: We have analyzed 80 reconstructive cases with ILD implantation in patients with post-traumatic aniridia and corneal damage. These patients constituted the first study group (Group 1). We have also investigated 58 eyes with residual ametropy and stable visual function 1 year after ILD implantation before and after conducting a laser keratorefractive surgery. These patients were assigned to the second study group (Group 2). RESULTS: Rehabilitation approach to patients after anterior segment injuries that has been proposed allows to achieve high clinical and functional results and reduce the risk of intra- and postoperative complications. CONCLUSION: The proposed approach to patients after optical-reconstructive surgery with iris-lens diaphragm implantation followed by keratorefractive surgery is an effective method of visual rehabilitation of anterior eye segment post-traumatic defects. PMID- 29319667 TI - [Diagnostic capabilities of optical coherence tomography and confocal laser scanning microscopy in studying manifestations of aniridia-associated keratopathy]. AB - AIM: to investigate the possible use of anterior segment optical coherence tomography (AS-OCT) and laser scanning confocal microscopy (LSCM) for visualization of limbal progenitor structures and epithelial changes at different stages of aniridia-associated keratopathy (AAK) and to analyze genotype-phenotype correlations of corneal damage. MATERIAL AND METHODS: Thirty-four patients (63 eyes) with congenital aniridia (CA) were subjected to epithelial cell density measurement in the central cornea as well as epithelial surface assessment with limbal palisades of Vogt (POV) detection in the corresponding sites of the two corneas. For that, LSCM (HRT3) and AS-OCT (RTVue XR Avanti) were performed. Central corneal and epithelial thicknesses were measured using the Pachymetry protocol. RESULTS: There has been found an increase in the central corneal thickness (CCT) of CA patients, which correlated with the stage of AAK, and a decrease in the central epithelial thickness as compared with healthy subjects (p<0.05). The difference between the basal and wing epithelial cells density in eyes with stages I and II AAK and normal cells density at stage 0 AAK was statistically significant (p<0.05). Intact or disturbed POV were detected in all patients with PAX6 3' deletion. At that, AS-OCT findings highly agreed with LSCM images for both the inferii (rS=0.85, p<0.05) and superior limbi (rS=0.53, p<0.05). A negative correlation was established between the stage of AAK and in vivo morphology of POV (rS=-0.5, p<0.05). However, no correlation was found between the stage of AAK and patient's age (rS=0.169, p=0.174). CONCLUSION: AS OCT and LSCM are both important diagnostic tools for corneal surface monitoring in patients with limbal stem cells deficiency. PMID- 29319668 TI - [Combined YAG-laser capsulotomy in pseudophakic patients with anterior capsular contraction syndrome]. AB - : Progressive metaplastic fibrosis of the anterior capsulorhexis opening is a frequent complication of the postoperative period. There is a widely practiced method of anterior capsular contraction syndrome (ACCS) correction through radial anterior laser capsulotomy. Despite many advantages, it can be complicated by unpredictable anterior capsule tearing and intraocular lens (IOL) dislocation into the vitreous Body, which justifies the search for new technical solutions. AIM: to develop a safe technique of combined laser anterior capsulotomy (LAC) in patients with ACCS. MATERIAL AND METHODS: The study included 19 patients (20 eyes) with ACCS. The suggested LAC technique involved two differently directed YAG-laser cuts that could be regarded as a combination of radial anterior capsulotomy and anterior peripheral linear capsulotomy. With the cuts located perpendicularly to each other, the distal end of each radial cut was connected to the middle of each longitudinal cut. RESULTS: The suggested technique allows an increase in the anterior capsulorhexis diameter up to more than twice the pre laser size. The difference between the average pre- and post-laser capsulorhexis diameters was statistically significant (r<0.0001). Neither case developed an unpredictable anterior capsule tear. CONCLUSION: The safety of the new technique is ensured by preliminary longitudinal cuts that create a barrier against unpredictable radial tears in the capsular bag during radial capsulotomy. PMID- 29319669 TI - [Analysis of structure, causes, and risk factors of ischemic optic neuro-pathy]. AB - AIM: to analyze the structure, risk factors, and causes of ischemic optic neuropathy (ION). MATERIAL AND METHODS: A total of 239 patients (303 eyes) with ION and 98 patients (185 eyes) with optic disc drusen were examined. All ION patients underwent general clinical assessment. Those under 50 years of age were also tested for antiphospholipid markers and gene polymorphisms of the coagulation system. RESULTS: All patients were found to be exposed to two or more modifiable risk factors of ION. A total of 47.1% of cases were judged as being at anatomical risk of anterior ION (AION) with the cup-to-disc ratio in the second eye of less than 0.15 (of less than 0.25 in 53% of cases). Of 98 patients (185 eyes) with optic disc drusen, 5.4% of cases (10 eyes) developed AION. As many as 22% of ION patients were under 50 years of age. Of them, in 32% primary APS was diagnosed, in 3.6% - secondary (in the presence of SLE); all cases were positive for polymorphisms of the coagulation system that determine genetic predisposition to ION (indeed, the frequency of the latter was significantly higher in these patients than in the control group). CONCLUSION: Ischemic optic neuropathy is an optic nerve disorder that requires thorough medical history taking and comprehensive assessment of the patient in order to identify the causes and risk factors of this disease as well as accompanying pathologies. PMID- 29319670 TI - [Dynamics of electrophysiological parameters of the retina after surgical treatment of idiopathic macular hole]. AB - AIM: to study the dynamics of recovery of electrophysiological parameters of the retina after surgical treatment of idiopathic macular hole (IMH) and to assess their relevance to functional prognosis of the operation. MATERIAL AND METHODS: The study included 118 patients (120 eyes) examined before and after successful IMH surgery. The patients underwent electroretinography (Ganzfeld and multifocal), static computed perimetry, and optical coherence tomography. They were also tested for the electrical sensitivity of the retina, lability of the visual analyzer, and critical fusion frequency. Postoperative functional parameters of the retina (electrophysiological included) were followed up at 1-2, 5-6, and 12-plus months and then compared to those obtained before surgery. Parameter dynamics, relationships, and the prognostic value of particular indicators were of interest. RESULTS: It was found that after successful restoration of retinal anatomy, functional parameters of the retina gradually improve and reach their maximum at 3 to 12 months, however, remain below the normal range in all cases. In 58 cases, postoperative visual acuity was 0.5 or higher (regarded as 'high postoperative visual acuity' - the HPVA group) and was accompanied by high density of foveal biopotential and foveal light sensitivity. In the HPVA group, the majority (62%) were patients with preoperative 'shift phenomenon' (a shift of the maximum of bioelectric potential from the fovea to parafovea and perifovea, its amplitude and density being supernormal for these retinal regions). CONCLUSION: Changes in electrophysiological and other functional parameters of the retina can be detected within 3-12 months after successful IMH surgery. Their recovery is not full and goes with a delay relative to restoration of retinal structure. The probability of high functional result of the operation, which includes an increase in visual acuity, foveal light sensitivity, and amplitude and density of foveal biopotential, is higher in patients with biopotential shift at baseline. PMID- 29319671 TI - [A modified implant for upper eyelid ptosis correction in frontalis suspension surgery]. AB - AIM: to develop a modified implant to correct ptosis through brow suspension and to evaluate its effectiveness. MATERIAL AND METHODS: The clinical group consisted of 20 patients (29 eyes) aged 23 to 69 years (45+/-5.3 years on the average) and the comparison group - of 20 patients (33 eyes) aged 19 to 77 years (47+/-9.5 years on the average). All patients were operated on for severe ptosis of the upper eyelid, which implied stitching their eyelids to the eyebrows. In the main group, an original implant was introduced as suspensory material - a 200 um thick porous polytetrafluoroethylene tape, length 13 cm, width 6 mm, round staggered perforation pattern, 1.5 mm holes, 3.5 mm pitch. In the comparison group, Mersilene mesh strips were used. The article contains a detailed description of the surgical technique. Checkups were performed at 1, 6, and 12 months. Follow-up periods were up to 4 years (1.7 years on the average) in the main group and up to 7 years (5.1 years on the average) - in the controls. RESULTS: Were evaluated by the width of the palpebral fissure at raised eyebrows, marginal reflex distance (MRD, which is the distance between the center of the pupil and the upper eyelid margin), presence and depth of the upper eyelid crease, and residual lagophthalmos. Examinations held at months 1, 6, and 12 after surgery showed that the results were positive and stable in all cases. Neither signs of recurrence, nor statistically significant differences between the groups were found. CONCLUSION: The use of the original modified implant during frontalis suspension surgery provides high and stable cosmetic result and expands the possibilities of ophthalmic plastic surgery. PMID- 29319672 TI - [Objective assessment of donor material for penetrating corneal transplantation]. AB - : Reliable suitability evaluation of donor material is the crucial issue of penetrating corneal transplantation. The main parameter to be considered is endothelial cell density (ECD). However, when it comes to practice, one has to admit significant variation in ECD readings of cadaver corneas obtained by different methods. AIM: to investigate discrepancies in ECD measurements and to define objective criteria for the evaluation of a donor cornea before full thickness grafting. MATERIAL AND METHODS: In a hundred cadaver eyes, discrepancies in ECD measurements by different methods (specular microscopy, confocal microscopy, and keratoanalyzer) were studied and objective evaluation criteria developed along with an optimal algorithm of pretransplantation assessment. Digital fluorescence microscopy was chosen as the reference method. RESULTS: It has been established that a triple measurement average obtained with any of the tested methods is informative enough as to the state of the donor cornea. CONCLUSION: The highest ECD values were obtained with specular microscopy, the lowest - with confocal microscopy. For reliable evaluation of donor corneas, we recommend that the average of a triple ECD measurement be taken using one of the mentioned methods. PMID- 29319673 TI - [Specifics of visual perception in infants with familial risk of autism spectrum disorders]. AB - Preclinical prediction of autistic spectrum disorders (ASD) is one of the priorities of current research. Children at risk of ASD develop an atypical visual perception profile early in their lives, which influences their visual responsiveness, distribution of attention, and social orienting. In this study we have compared the oculomotor behavior in an infant at familial risk of ASD with data from two 10-month infants with typical development. The SMI RED500 eye tracker was used for acquisition. Most parameters of visual perception in the at risk infant were found to differ significantly from these of the controls. The strategy of visual search in the at-risk infant was generally less successful (13% of attempts vs 31% and 56% in the controls) with a tendency to focus predominantly on social stimuli (50% of the total gaze time). The said changes together with longer fixation duration (576.41 ms vs 527.77 and 386.72 ms in the two controls), lower saccadic frequency (1.74 counts/ms vs 1.84 and 2.18 counts/ms), and shorter scan path length (2774.24 px vs 3612.58 and 3985.43 px) may result in difficulties in switching tasks and processing information. PMID- 29319674 TI - [Rate of visual recovery after macular hole surgery with intraoperative optical coherence tomography and visualization of the internal limiting membrane]. AB - : Currently, multiple techniques exist to repair a macular hole, but the functional result may be largely affected by the use of dyes during surgery. With our original visualization methods, one is able to remove the internal limiting membrane (ILM) without staining, and thus to avoid the toxic effect of dyes. AIM: to compare anatomical and functional results of surgical closure of large macular holes with or without ILM staining. MATERIAL AND METHODS: A total of 160 patients (190 eyes) were divided into 2 groups. Patients from group 1 (60 eyes) were subjected to surgery that involved the use of a dye, while in group 2 (130 eyes) ILM was not performed. Anatomical and functional results of the two groups were then compared. RESULTS: The next day after surgery, a large improvement in the best corrected visual acuity - of 3 lines or more - was found in 28 controls (46.6%) and 98 patients from the main group (75.4%). There was no significant change in 24 and 27 patients, respectively (40.0% and 20.7%). The remaining 8 and 5 patients (13.4% and 3.9%) deteriorated by 3 lines or more. CONCLUSION: Stain free removal of the ILM under green-yellow light favours rapid recovery of visual acuity in patients with macular holes. Anatomical reconstruction of the foveola, including complete approximation of the hole margins and keeping the defect closed until the end of the operation, is controlled through a built-in optical coherence tomograph ensuring high anatomical and functional results. PMID- 29319675 TI - [Use of infrared thermography in ophthalmology]. AB - Thermoregulation disorders are associated with Body temperature fluctuation. Both hyper- and hypothermia are evidence of an ongoing pathological process. Contralateral symmetry in the Body heat spread is considered normal, while asymmetry, if above a certain level, implies an underlying pathology. Infrared thermography (IRT) is employed in many medical fields including ophthalmology. The earliest attempts of eye surface temperature evaluation were made in the 19th century. Over the last 50 years, different authors have been using this method to assess ocular adnexa, however, the technique remains insufficiently studied. The reported IRT data is often contradictory, which may be due to heterogeneity (in terms of severity) of patient groups and disparities between research parameters. PMID- 29319676 TI - [Fuchs endothelial corneal dystrophy]. AB - Fuchs endothelial dystrophy is a severe disease characterized by slowly progressing bilateral asymmetric corneal edema usually seen in elderly patients. The primary purpose of treatment is to minimize edema-related symptoms, such as ocular discomfort and visual acuity loss. Conservative therapy is symptomatic and has a short-term positive effect that does not lead to full functional rehabilitation of the patient, while endothelial keratoplasty is pathogenetically oriented. Intentional replacement of pathologically altered corneal layers has several advantages: preservation of corneal architectonics, rapid recovery of visual function, 'closed eye' surgery with corneal tunnel approach, and independence from expensive equipment. However, principle indications and contraindications for various modifications of endothelial keratoplasty in the presence of comorbidity are still to be defined. Further improvement of the methods and their broader implementation into clinical practice are the most pressing and promising issues of corneal transplantation. PMID- 29319677 TI - [Corneal collagen cross-linking in the treatment of infectious keratitis and corneal ulcers]. AB - In recent years, collagen cross-linking (CXL) of the cornea has acquired a new usage - in the treatment of infectious keratitis and corneal ulcers. This review was aimed at compiling the previously published data and assessing the effectiveness of the method. PMID- 29319678 TI - [Role of genetic markers in personalization of anti-angiogenic therapy in patients with exudative age-related macular degeneration]. AB - The review presents data of clinical and pharmacogenetic research by Russian and foreign authors conducted within the last three years on the effectiveness of anti-angiogenic treatment against wet age-related macular degeneration (AMD). Scientific results on the association between angiogenesis-related gene polymorphisms responsible for predisposition to AMD on the one hand and a positive response to anti-VEGF therapy on the other are presented. Particular attention is paid to the main regulator of angiogenesis - the VEGF-A gene. PMID- 29319679 TI - [Ahmed valve in glaucoma surgery]. AB - This is a review on Ahmed valve application in glaucoma surgery. It contains, in particular, data on the Ahmed valve efficiency, results of experimental and histological studies of filtering bleb encapsulation, examines the use of antimetabolites and anti-VEGF agents, and discusses implantation techniques. The current appraisal of antimetabolites delivery systems integrated into the Ahmed valve is presented. Various complications encountered in practice and preventive measures are also covered. PMID- 29319680 TI - [Idiopathic macular hole: history and status quo review]. AB - The article reviews the literature on one of the topical problems of vitreoretinal surgery - idiopathic macular holes. The history, concept, classification and diagnostics, as well as surgical and alternative treatment methods of macular holes are explored. PMID- 29319682 TI - Bluebird's BCMA CAR-T impresses at ASH. PMID- 29319681 TI - [Economic aspects of diabetic macular edema treatment at regional level in Russian Federation]. AB - An assessment of economic burden of Diabetic Macular Edema (DME) in Russian Federation was conducted on the example of four pilot regions including Samara Region, Republic of Bashkortostan, Chuvash Republic and Yaroslavl Region. The assessment involved a newly developed interactive pharmacoeconomic model that uses data from questionnaire surveys of leading DME experts residing in the regions. In the course of the study, direct and indirect costs associated with DME were calculated. The highest direct costs of DME treatment were seen in the Republic of Bashkortostan - 302 482 RUB/year per patient. Direct cost of treating a single DME patient in the Samara Region was 34 271 RUB/year, in the Yaroslavl Region - 32 308 RUB/year and in the Chuvash Republic - 12 243 RUB/year. Indirect costs per DME patient in the Samara Region amounted to 67 530 RUB/year, in the Yaroslavl Region - 75 177 RUB/year, in the Republic of Bashkortostan - 102 884 RUB/year and in the Chuvash Republic - 81 082 RUB/year. Total annual costs per DME patient in the Samara Region was 101 801 RUB/year, in the Yaroslavl Region - 107 485 RUB/year, in the Republic of Bashkortostan - 405 366 RUB/year and in the Chuvash Republic - 93 325 RUB/year. PMID- 29319683 TI - Why the European Union needs a national GMO opt-in mechanism. PMID- 29319685 TI - China's fledgling biotech sector fizzes into life. PMID- 29319684 TI - Mapping the global influence of published research on industry and innovation. PMID- 29319686 TI - Strength in numbers from integrated single-cell neuroscience. PMID- 29319687 TI - First in vivo human genome editing trial. PMID- 29319688 TI - Around the world in a month. PMID- 29319689 TI - Recent patents in proteomics. PMID- 29319690 TI - Texas displays 'Silicon Valley' credentials to lure Brazilian biotechs. PMID- 29319691 TI - Drugmakers cling to dual IL-13/IL-4 blockbuster hopes. PMID- 29319692 TI - FDA to relax grip on at-home genetic tests, but concerns linger. PMID- 29319693 TI - AI for your heart, on your wrist. PMID- 29319695 TI - PODCAST: First rounders: Susan Windham-Bannister. PMID- 29319694 TI - With a free pass, CRISPR-edited plants reach market in record time. PMID- 29319697 TI - FDA approves hereditary blindness gene therapy. PMID- 29319696 TI - RNA-targeting CRISPR comes of age. PMID- 29319700 TI - DNA makes an appearance. PMID- 29319702 TI - The structures of liquid pyridine and naphthalene: the effects of heteroatoms and core size on aromatic interactions. AB - Total neutron scattering has been used in conjunction with H/D and *N/15N isotopic substitution to determine the detailed liquid-state structures of pyridine and naphthalene. Analysis of the data via an empirical potential-based structure refinement method has allowed us to interrogate the full six dimensional spatial and orientational correlation surfaces in these systems, and thereby to deduce the fundamental effects of a heteroatom and aromatic core-size on intermolecular pi-pi interactions. We find that the presence of a nitrogen heteroatom, and concomitant dipole moment, in pyridine induces surprisingly subtle departures from the structural correlations observed in liquid benzene: in both cases the most probable local motif is based on perpendicular (edge-to-face) intermolecular contacts, while parallel-displaced configurations give rise to a clear shoulder in the correlation surface. However, the effect of the heteroatom is revealed through detailed analysis of the intermolecular orientational correlations. This analysis shows a tendency for neighbouring pyridine molecules to direct one meta- and one para-hydrogen towards the neighbouring aromatic pi orbitals in edge-to-face configurations, while head-to-tail alignment of adjacent nitrogen atoms is favoured in face-to-face configurations. In contrast to this, increasing aromatic core size from one to only two rings has a clear and profound effect on the pi-pi interactions and liquid structure. Our experiments show that naphthalene-naphthalene contacts are dominated by parallel-displaced configurations, akin to those found in graphite. This marks a fundamental difference with the structure of liquid benzene, in which perpendicular geometries are favoured. Furthermore, it is remarkable to note that in the systems studied, the most favoured spatio-orientational configurations observed in the liquid state are not predicted from ab initio calculations and/or solid state crystallographic studies. This highlights the need for caution when extrapolating the results of crystallographic and computational studies to aromatic interactions in liquids and disordered systems. PMID- 29319699 TI - Precision oncology in the age of integrative genomics. AB - Precision oncology applies genomic and other molecular analyses of tumor biopsies to improve the diagnosis and treatment of cancers. In addition to identifying therapeutic options, precision oncology tracks the response of a tumor to an intervention at the molecular level and detects drug resistance and the mechanisms by which it occurs. Integrative genomics can include sequencing specific panels of genes, exomes, or the entire triad of the patient's germline, tumor exome, and tumor transcriptome. Although the capabilities of sequencing technologies continue to improve, widespread adoption of genomics-driven precision oncology in the clinic has been held back by logistical, regulatory, financial, and ethical considerations. Nevertheless, integrative clinical sequencing programs applied at the point of care have the potential to improve the clinical management of cancer patients. PMID- 29319703 TI - Tailoring 2D and 3D molecular sieves structures for polyolefin composites: do all roads lead to remarkable performances? AB - Multiple synthetic strategies were performed in order to tether a zirconium-based catalyst to the 2D and 3D molecular sieves for olefin polymerizations. The anchoring of fluorene silane to the mesoporous MCM-41 was performed in order to obtain a stable catalyst for olefin polymerization (1@MCM-41). Using spectroscopic methods, this system was shown to have the metal center locked on a face down conformation with the surface. Also, immobilized zirconium complexes have been prepared on three different types of aminopropyl-modified supports (2@magadiite, 2@MCM-41 and 3@MCM-48). The advantage of this latter method of immobilization would be the reduction of the steric effect caused by the support: the catalyst, distant from the surface, is more exposed to the monomer and this situation may lead to an increase in the catalytic activity compared to 1@MCM-41. However, a medium size chain as a spacer between the support and the metallocene is still flexible enough to bend and predisposes the metal center to interact with the support surface; this effect is more evident when the nature of the support is of fixed pore dimensions. These supported catalysts exhibited activity for ethylene polymerization, resulting in linear PEs with high melting temperatures. In order to retain a metallocene assembled as in a homogeneous environment, a multi-step reaction was investigated (4@magadiite) but it led to the leaching of the organic moieties from the surface during catalyst preparation. The best catalytic performance was achieved when homogeneous Oct amido catalyst (5) was reacted with the surface of magadiite and n-alkyl-AlPO kan. PMID- 29319704 TI - Multiply "trapped" 3[trans-Pt(PR3)2(C[triple bond, length as m-dash]CC6H4X)2]* conformers in rigid media. AB - The complexes (R = Me, Et, Bu; X = H, SMe) exhibit well-defined multi-exponential emissions (2-4 components) in the solid state at 77 and 298 K and in 2MeTHF glasses at 77 K due to multiple frozen conformers exhibiting variable dihedral angles formed by the PtP2C2 and C6H4 planes. The demonstration was made using X ray crystallography at various temperatures where different sites are present in the samples, and using geometry optimization (DFT computations) where various stable conformers are noted. PMID- 29319705 TI - Structure, thermodynamics, and rearrangement mechanisms in gold clusters-insights from the energy landscapes framework. AB - We consider finite-size and temperature effects on the structure of model AuN clusters (30 <= N <= 147) bound by the Gupta potential. Equilibrium behaviour is examined in the harmonic superposition approximation, and the size-dependent melting temperature is also bracketed using molecular dynamics simulations. We identify structural transitions between distinctly different morphologies, characterised by various defect features. Reentrant behaviour and trends with respect to cluster size and temperature are discussed in detail. For N = 55, 85, and 147 we visualise the topography of the underlying potential energy landscape using disconnectivity graphs, colour-coded by the cluster morphology; and we use discrete path sampling to characterise the rearrangement mechanisms between competing structures separated by high energy barriers (up to 1 eV). The fastest transition pathways generally involve metastable states with multiple fivefold disclinations and/or a high degree of amorphisation, indicative of melting. For N = 55 we find that reoptimising low-lying minima using density functional theory (DFT) alters their energetic ordering and produces a new putative global minimum at the DFT level; however, the equilibrium structure predicted by the Gupta potential at room temperature is consistent with previous experiments. PMID- 29319706 TI - Dendritic polyelectrolytes revisited through the Poisson-Boltzmann-Flory theory and the Debye-Huckel approximation. AB - The properties of a dendritic polyelectrolyte in equilibrium with a reservoir of monovalent salts are investigated using the cell model and the Poisson-Boltzmann Flory theory. Within this approach we use the Debye-Huckel approximation to solve the Poisson-Boltzmann equation and minimize the semi-grand potential of the system with respect to the size of the molecule which enables us to inspect its conformations as well as the electric field, the ionic density profile, the overall charge density, the effective charge of the dendrimer and the osmotic pressure based on their response to the salt concentration and the dendrimer charge. The model predicts pronounced trapping of salt ions, a local charge neutrality and a zero electric field in the volume of the molecule as well as oscillations of the density profiles and the electric field in the vicinity of the dendrimer-bulk interface. As a result of ion trapping and screening of Coulomb interactions monovalent salts are found to have a minor effect on the size of the dendrimer. Specifically, the dendrimer exists in slightly swollen states as compared to the neutral molecule which indicates that the conformational properties of the polyelectrolyte depend weakly on monovalent salts. These observations harmonise with the equilibrium behavior of the dendrimer pressure, the internal pressure and the bulk pressure, respectively. PMID- 29319707 TI - Li0.93V2.07BO5: a new nano-rod cathode material for lithium ion batteries. AB - The compound Li0.93V2.07BO5 (LVBO) has been successfully designed and used for the first time as a cathode material for lithium ion batteries (LIBs). It belongs to a new family of lithium transition metal borates, namely LiMBO3 (M = Mn, Fe or Co), which are regarded as good alternatives to phosphates because of their comparably lower molecular weights, which can lead to a larger theoretical specific capacity than those of phosphate-based LiMPO4. LVBO crystallizes in the space group Pbam with V atom and Li atom occupying the same sites, which makes the structure more stable and brings a disorder effect. Further structure and components of the promising cathode material have been characterized based on the results of X-ray diffraction, X-ray photoelectron spectroscopy, Raman spectroscopy and inductively coupled plasma mass spectrometry. The synthesized LVBO/C material displays a nanorod morphology with a size of 20-100 nm and shows good electrochemical activity. When used as cathode material in LIBs, LVBO/C delivers an initial discharge specific capacity of 125 mA h g-1 and exhibits relatively good cycle stability. These results are of great interest for further study of its electrochemical behaviors, which is of significance in exploring new borate cathode materials for LIBs. PMID- 29319708 TI - Thermally induced alloying processes in a bimetallic system at the nanoscale: AgAu sub-5 nm core-shell particles studied at atomic resolution. AB - Alloying processes in nanometre-sized Ag@Au and Au@Ag core@shell particles with average radii of 2 nm are studied via high resolution Transmission Electron Microscopy (TEM) imaging on in situ heatable carbon substrates. The bimetallic clusters are synthesized in small droplets of superfluid helium under fully inert conditions. After deposition, they are monitored during a heating cycle to 600 K and subsequent cooling. The core-shell structure, a sharply defined feature of the TEM High-Angle Annular Dark-Field images taken at room temperature, begins to blur with increasing temperature and transforms into a fully mixed alloy around 573 K. This transition is studied at atomic resolution, giving insights into the alloying process with unprecedented precision. A new image-processing method is presented, which allows a measurement of the temperature-dependent diffusion constant at the nanoscale. The first quantification of this property for a bimetallic structure <5 nm sheds light on the thermodynamics of finite systems and provides new input for current theoretical models derived from bulk data. PMID- 29319709 TI - Displacement of eta5-cyclopentadienyl ligands from half-sandwich C,C-(NHC cyanoalkyl)-nickel(ii) metallacycles: further insight into the structure of the resulting Cp-free nickelacycles and a catalytic activity study. AB - Four cationic C,C-(NHC-cyanoalkyl)-nickel(ii) metallacyclic complexes, [Ni{Me-NHC CH2CH(CN)}(NCMe)](PF6) (2a), [Ni{Mes-NHC-CH2CH(CN)}(NCMe)](PF6) (2b), [Ni{Mes-NHC (CH2)2CH(CN)}(NCMe)](PF6) (2c) and [Ni{DiPP-NHC-(CH2)2CH(CN)}(NCMe)](PF6) (2d), were prepared by the removal of the Cp ligand under acidic conditions at 0 degrees C from the corresponding half-sandwich nickelacycles [NiCp{R-NHC (CH2)nCH(CN)}] (1a-1d; Cp = eta5-C5H5; n = 1 or 2; R-NHC-(CH2)nCH(CN) = 1-R-3 [(CH2)nCH(CN)]-imidazol-2-ylidene). Full characterization of 2a-d by 1H and 13C{1H} NMR spectroscopy in CD3CN and pyridine-d5, ATR-FTIR spectroscopy, mass spectrometry, and CHN microanalyses established the presence of only one acetonitrile ligand per nickel atom in the solid state. A DFT structural study conducted on the cations of the methyl-substituted 5-membered nickelacycle 2a and the mesityl-substituted 6-membered cycle 2c found a small energetic cost (DeltaG = 7-12 kcal mol-1) for the loss of one acetonitrile ligand from the square-planar structures existing in solution, that should be easily amenable upon solvent evaporation (DeltaG? = 14 kcal mol-1 in the case of 2c). Two structures with one acetonitrile ligand could be optimized in both cases: (i) a truly T-shaped 14 electron structure with an end-on acetonitrile ligand, and (ii) a masked T-shaped structure stabilized by the pi-coordination of the dangling CN group of the metallated alkyl chain, the latter being favoured by 2.4 kcal mol-1 in the case of the flexible 6-membered ring 2c. A comparison of calculated vibrational frequencies with experimental FTIR spectra ruled out pi-coordination of the dangling CN group as a nu(C[triple bond, length as m-dash]N) band at low frequency was absent. Complexes 2a-d thus probably exist as rare three-coordinate T-shaped 14-electron species in the solid state. Their catalytic activity was studied for the direct arylation of azoles, and 2c proved to be moderately active for the coupling of benzothiazole with aryl iodides. Mechanistic insights suggest that competing processes or a radical process catalysed by nickel particles could follow an initial reduction of 2c by the dimerization of a sacrificial amount of benzothiazole. PMID- 29319710 TI - Nanoassembly of quantum emitters in hexagonal boron nitride and gold nanospheres. AB - The assembly of quantum nanophotonic systems with plasmonic resonators is important for fundamental studies of single photon sources as well as for on-chip information processing. In this work, we demonstrate the controllable nanoassembly of gold nanospheres with ultra-bright narrow-band quantum emitters in 2D layered hexagonal boron nitride (hBN). We utilize an atomic force microscope (AFM) tip to precisely position gold nanospheres to close proximity to the quantum emitters and observe the resulting emission enhancement and fluorescence lifetime reduction. The extreme emitter photostability permits analysis at high excitation powers, and delineation of absorption and emission enhancement caused by the plasmonic resonators. A fluorescence enhancement of over 300% is achieved experimentally for quantum emitters in hBN, with a radiative quantum efficiency of up to 40% and a saturated count rate in excess of 5 * 106 counts per s. Our results are promising for the future employment of quantum emitters in hBN for integrated nanophotonic devices and plasmonic based nanosensors. PMID- 29319711 TI - On skin microrelief and the emergence of expression micro-wrinkles. AB - Over the course of a life time, as a result of adaptive mechanobiological processes (e.g. ageing), or the action of external physical factors such as mechanical loading, the human skin is subjected to, and hosts complex biophysical processes. These phenomena typically operate through a complex interplay, that, ultimately, is responsible for the evolutive geometrical characteristics of the skin surface. Wrinkles are a manifestation of these effects. Although numerous theoretical models of wrinkles arising in multi-layered structures have been proposed, they typically apply to idealised geometries. In the case of skin, which can be viewed as a geometrically complex multi-layer assembly, it is pertinent to question whether the natural skin microrelief could play a significant role in conditioning the characteristics of compression-induced micro wrinkles by acting as an array of geometrical imperfections. Here, we explore this question through the development of an anatomically-based finite strain parametric finite element model of the skin, represented as a stratum corneum layer on top of a thicker and softer substrate. Our study suggests that skin microrelief could be the dominant factor conditioning micro-wrinkle characteristics for moderate elastic modulus ratios between the two layers. Beyond stiffness ratios of 100, other factors tend to overwrite the effects of skin microrelief. Such stiffness ratio fluctuations can be induced by changes in relative humidity or particular skin conditions and can therefore have important implications for skin tribology. PMID- 29319712 TI - 3-D and electrically conducting functional skin mapping for biomedical applications. AB - Ex situ and in situ 3-D and electrically conducting mapping of the skin topography via electropolymerization of a conducting polymer on a previously sampled skin stamp or directly on the skin of a live human subject were performed here with the intention to be further used in biomedical applications. PMID- 29319713 TI - Adaptable liquid crystal elastomers with transesterification-based bond exchange reactions. AB - Adaptable liquid crystal elastomers (LCEs) have recently emerged to provide a new and robust method to program monodomain LCE samples. When a constant stress is applied with active bond exchange reactions (BERs), polymer chains and mesogens gradually align in the strain direction. Mesogen alignment is maintained after removing the BER stimulus (e.g. by lowering the temperature) and the programmed LCE samples exhibit free-standing two-way shape switching behavior. Here, a new adaptable main-chain LCE system was developed with thermally induced transesterification BERs. The network combines the conventional properties of LCEs, such as an isotropic phase transition and soft elasticity, with the dynamic features of adaptable network polymers, which are malleable to stress relaxation due to the BERs. Polarized Fourier transform infrared measurements confirmed the alignment of polymer chains and mesogens after strain-induced programming. The influence of the creep stress, temperature, and time on the strain amplitude of two-way shape switching was examined. The LCE network demonstrates an innovative feature of reprogrammability, where the reversible shape-switching memory of programmed LCEs is readily deleted by free-standing heating as random BERs disrupt the mesogen alignment, so LCEs are reprogrammed after returning to the polydomain state. Due to the dynamic nature of the LCE network, it also exhibits a surface welding effect and can be fully dissolved in the organic solvent, which might be utilized for green and sustainable recycling of LCEs. PMID- 29319714 TI - Solvent-mediated aggregate formation of PNDIT2: decreasing the available conformational subspace by introducing locally highly ordered domains. AB - The high-mobility n-type donor/acceptor polymer PNDIT2 is well-known to form aggregates in solution depending on the solvent used. To gain additional insight into this process, we probed the local environment of triplet excitons in two different solvents and with two different polymer chain lengths using time resolved electron paramagnetic resonance (TREPR) spectroscopy. Results clearly show aggregation to introduce a high degree of local order in the polymer and to dramatically enhance the delocalisation of the exciton. Furthermore, triplet exciton delocalisation is only affected by the solvent used and hence by aggregate formation, not by chain length. Finally, aggregation changes the mode of delocalisation from intrachain to interchain when forming aggregates, the latter mode dominating as well in thin films. Taken together, TREPR proves to be a valuable tool for investigating aggregation and order in polymers on a molecular length-scale, ideally complementing preceding optical data. PMID- 29319715 TI - Identification and return of a skull from Tasmania in the Berlin anatomical collection. AB - ABSTRACT: Following a request by the Australian government, human remains of Australian origin were identified in the anatomical collection of Charite, the medical faculty of Berlin. We initiated an interdisciplinary provenance research on such remains to ensure their identity, elucidate their history, and prepare for a possible return to Australia. Here, we present results regarding a skull in the collection labeled as stemming from Tasmania. The non-invasive anthropological investigation revealed the skull to stem from a girl of about 15 years of age who most likely died of a massive otitis/petrositis with subsequent meningitis. These results match the historical findings, which started from an inscription on the frontal bone giving a first name ("Nanny"), an ancestry ("native of Kangaroo Island"), a collector ("Schayer"), and a location ("van Diemensland", i.e. Tasmania). The collector, Adolph Schayer, was a German sheep breeder and botanical/zoological collector living in north-western Tasmania from 1831 to 1843. In archival sources, a girl named Nanny Allan could be identified, who was a native of Kangaroo Island and died in Launceston/Tasmania in 1836 at the age of about 14 years. As there were no doubts that these remains stem from a Tasmanian individual, they were handed over to representatives of the Tasmanian Aboriginal Centre in July 2014. PMID- 29319716 TI - Screening protocol for dysphagia in adults: comparison with videofluoroscopic findings. AB - OBJECTIVES: To compare the videofluoroscopic findings of patients with suspected oropharyngeal dysphagia with the results of a clinical screening protocol. METHODS: A retrospective observational cohort study was conducted on all consecutive patients with suspected oropharyngeal dysphagia between March 2015 and February 2016 who were assigned to receive a videofluoroscopic assessment of swallowing. All patients were first submitted to videofluoroscopy and then to the clinical assessment of swallowing. The clinical assessment was performed within the first 24 hours after videofluoroscopy. The videofluoroscopy results were analyzed regarding penetration/aspiration using an 8-point multidimensional perceptual scale. The accuracy of the clinical protocol was analyzed using the sensitivity, specificity, likelihood ratios and predictive values. RESULTS: The selected sample consisted of 50 patients. The clinical protocol presented a sensitivity of 50% and specificity of 95%, with an accuracy of 88%. "Cough" and "wet-hoarse" vocal quality after/during swallowing were clinical indicators that appeared to correctly identify the presence of penetration/aspiration risk. CONCLUSION: The clinical protocol used in the present study is a simple, rapid and reliable clinical assessment. Despite the absence of a completely satisfactory result, especially in terms of the sensitivity and positive predictive values, we suggest that lower rates of pneumonia can be achieved using a formal dysphagia screening method. PMID- 29319717 TI - Serum 25-hydroxyvitamin D levels in patients with Granulomatosis with Polyangiitis: association with respiratory infection. AB - OBJECTIVES: To determine the possible association of serum 25-hydroxyvitamin D (25OHD) levels with disease activity and respiratory infection in granulomatosis with polyangiitis patients during two different periods: winter/spring and summer/autumn. METHODS: Thirty-two granulomatosis with polyangiitis patients were evaluated in the winter/spring, and the same patients (except 5) were evaluated in summer/autumn (n=27). The 25OHD levels were measured by radioimmunoassay. Disease activity was assessed by the Birmingham Vasculitis Activity Score Modified for Wegener's Granulomatosis (BVAS/WG) and antineutrophil cytoplasmic antibody (ANCA) positivity. Respiratory infection was defined according the Centers for Disease Control and Prevention criteria. RESULTS: 25OHD levels were lower among patients in winter/spring than in summer/autumn (32.31+/-13.10 vs. 38.98+/-10.97 ng/mL, p=0.04). Seven patients met the criteria for respiratory infection: 5 in winter/spring and 2 in summer/autumn. Patients with respiratory infection presented lower 25OHD levels than those without infection (25.15+/ 11.70 vs. 36.73+/-12.08 ng/mL, p=0.02). A higher frequency of low vitamin D levels (25OHD<20 ng/mL) was observed in patients with respiratory infection (37.5% vs. 7.8, p=0.04). Serum 25OHD levels were comparable between patients with (BVAS/WG>=1 plus positive ANCA) and without disease activity (BVAS/WG=0 plus negative ANCA) (35.40+/-11.48 vs. 35.34+/-13.13 ng/mL, p=0.98). CONCLUSIONS: Lower 25OHD levels were associated with respiratory infection but not disease activity in granulomatosis with polyangiitis patients. Our data suggest that hypovitaminosis D could be an important risk factor for respiratory infection in granulomatosis with polyangiitis patients. PMID- 29319718 TI - Effects of periarticular injection on analgesic effects and NSAID use in total knee arthroplasty and total hip arthroplasty. AB - OBJECTIVES: This study examined periarticular multimodal drug injection and the use of nonsteroidal anti-inflammatory drugs for an early analgesic effect after total knee arthroplasty and total hip arthroplasty. Patient satisfaction and benefits from the treatment were also assessed. METHODS: A total of 110 patients who were scheduled to undergo total knee arthroplasty and 86 patients who were scheduled to undergo total hip arthroplasty were divided into two groups, the study group and the control group. The study group received a periarticular multimodal drug injection during surgery. The control group received an equal volume of normal saline. All patients received an analgesia pump and a moderate dose of nonsteroidal anti-inflammatory drugs. Resting and motion Numeric Rating Scale scores, the Western Ontario and McMaster Universities Arthritis Index, knee or hip joint range of motion, length of postoperative hospital stay, patient satisfaction, total nonsteroidal anti-inflammatory drug consumption and side effects were recorded. RESULTS: Both study groups exhibited significant improvement in pain Numeric Rating Scale scores during rest and exercise several days after the surgery. The range of joint motion was greater in the study group, and the length of postoperative hospital stay was shorter than that in the control group. Patients in the study group consumed fewer nonsteroidal anti inflammatory drugs and reported greater satisfaction with surgery. CONCLUSION: Intraoperative periarticular multimodal drug injection significantly relieved pain after surgery and reduced nonsteroidal anti-inflammatory drug consumption. These patient had a better postoperative experience, including satisfaction and rehabilitation. PMID- 29319719 TI - A new low-cost negative-pressure wound therapy versus a commercially available therapy device widely used to treat complex traumatic injuries: a prospective, randomized, non-inferiority trial. AB - OBJECTIVES: Negative-pressure wound therapy has been widely adopted to reduce the complexity of treating a broad range of acute and chronic wounds. However, its cost is high. The objective of this study was to evaluate the following two different methods of negative-pressure wound therapy in terms of healing time: a low-cost method of negative-pressure wound therapy (a pressure stabilizer device connected to a hospital wall-vacuum system with a gauze-sealed dressing, USP) and the standard of care (vacuum-assisted closure, VAC). METHODS: This is a randomized, controlled, non-inferiority, unblinded trial. Patients admitted with complex injuries to a trauma center in a public referral hospital who were indicated for orthopedic surgery were randomized to a USP or VAC group. The primary outcome was the time required to achieve a "ready for surgery condition", which was defined as a wound bed with healthy granulation tissue and without necrosis or purulent secretion. Wound bed area contraction, granulation tissue growth and the direct costs of the dressings were secondary outcomes. RESULTS: Variation in area and granulation tissue growth were essentially the same between the systems, and healing time was equal between the groups (p=0.379). In both systems, serial debridement increased wound area (p=0.934), and granulation tissue was also increased (p=0.408). The mean treatment cost was US$ 15.15 in the USP group and US$ 872.59 in the VAC group. CONCLUSIONS: For treating complex traumatic injuries, USP was non-inferior to and less expensive than VAC. PMID- 29319720 TI - Depression and adherence to antiretroviral treatment in HIV-positive men in Sao Paulo, the largest city in South America: Social and psychological implications. AB - OBJECTIVES: The aim of the present study was to investigate the prevalence of depression and adherence to antiretroviral treatment in two groups of individuals: men who have sex with men (MSM) and men who have sex with women (MSW). METHODS: Two hundred and sixteen participants (MSM=116; MSW=100) who visited the Clinics Hospital of the School of the Medicine of the University of Sao Paulo completed two independent surveys (the BECK Depression Inventory and an adherence self-declared questionnaire) to evaluate their depression status and adherence to antiretroviral treatment, respectively. RESULTS: The study highlighted a positive relationship between depression and low adherence to Highly Active Antiretroviral Therapy in these patients regardless of age and sexual orientation. In addition, MSM subjects were two times more prone than MSW subjects to develop depression symptoms. White or mixed race men showed 7.6 times greater adherence to treatment than black men. The probability of complete adherence to treatment was 3.8 times higher in non-depressed subjects than in depressed subjects regardless of their ethnicity. The chance of developing depression was 4.17 times higher for an individual with non-adherent behavior than for an adherent individual. CONCLUSIONS: Individuals with low adherence rates have proportionally higher depression rates. Depressed men tend to show less adherence to treatment. Black but not mixed race or white men show less adherence to Highly Active Antiretroviral Therapy and have a greater chance of developing depression, which directly interferes with adherence. The chances of developing depression are four times greater for a patient with non-adherent behavior than for a patient with adherent behavior. PMID- 29319721 TI - Microcirculation improvement after short-term infusion of vasopressin in septic shock is dependent on noradrenaline. AB - OBJECTIVES: To assess the impact of vasopressin on the microcirculation and to develop a predictive model to estimate the probability of microcirculatory recruitment in patients with septic shock. METHODS: This prospective interventional study included patients with septic shock receiving noradrenaline for less than 48 hours. We infused vasopressin at 0.04 U/min for one hour. Hemodynamic measurements, including sidestream dark-field imaging, were obtained immediately before vasopressin infusion, 1 hour after vasopressin infusion and 1 hour after vasopressin withdrawal. We defined patients with more than a 10% increase in total vascular density and perfused vascular density as responders. ClinicalTrials.gov: NCT02053675. RESULTS: Eighteen patients were included, and nine (50%) showed improved microcirculation after infusion of vasopressin. The noradrenaline dose was significantly reduced after vasopressin (p=0.001) and was higher both at baseline and during vasopressin infusion in the responders than in the non-responders. The strongest predictor for a favorable microcirculatory response was the dose of noradrenaline at baseline (OR=4.5; 95% CI: 1.2-17.0; p=0.027). For patients using a noradrenaline dose higher than 0.38 mcg/kg/min, the probability that microcirculatory perfusion would be improved with vasopressin was 53% (sensitivity 78%, specificity 77%). CONCLUSIONS: In patients with septic shock for no longer than 48 h, administration of vasopressin is likely to result in an improvement in microcirculation when the baseline noradrenaline dose is higher than 0.38 mcg/kg/min. PMID- 29319722 TI - Pain and quality of life in breast cancer patients. AB - OBJECTIVE: To evaluate the influence of pain on quality of life in breast cancer patients. METHODS: A cross-sectional study of 400 patients, including 118 without metastasis, 160 with loco-regional metastasis and 122 with distant metastasis. The instruments used were the European Organization for Research and Treatment for Cancer Quality of Life Questionnaire-Core 30 and the Breast Cancer-specific 23 and short McGill Pain Questionnaire. RESULTS: In total, 71.7% of patients reported pain. The most frequent sensory descriptor used by patients was 'jumping.' In the evaluative dimension, the main descriptor chosen was troublesome. The Global Health self-assessment showed pain to be inversely correlated with quality of life: the group without metastasis had a mean score of 55.3 (SD=24.8) for those in pain, which rose to 69.7 (SD=19.2) for those without pain (p=0.001). Subjects with loco-regional metastasis had score of 59.1 (SD=21.3) when in pain, and those without pain had a significantly higher score of 72.4 (SD=18.6) (p<0.001). Patients from the distant metastasis group showed similar results with a mean score of 48.6 (SD=23.1) for those in pain and 67.6 (SD=20.4) for those without pain (p=0.002). Regarding the association of pain intensity and quality of life, patients with distant metastasis and intense pain had the worst scores for quality of life with a functional scale mean of 49.9 (SD=17.3) (p<0.009), a Symptom Scale score of 50.0 (SD=20.1) (p<0.001) and a Global Health Scale score of 39.7 (SD=24.7) (p<0.006). CONCLUSIONS: Pain compromises the quality of life of patients with breast cancer, particularly those with advanced stages of the disease. PMID- 29319723 TI - Characteristics and Outcomes of Intensive Care Unit Survivors: Experience of a Multidisciplinary Outpatient Clinic in a Teaching Hospital. AB - OBJECTIVES: To describe the experience of an outpatient clinic with the multidisciplinary evaluation of intensive care unit survivors and to analyze their social, psychological, and physical characteristics in a low-income population and a developing country. METHODS: Retrospective cohort study. Adult survivors from a general intensive care unit were evaluated three months after discharge in a post-intensive care unit outpatient multidisciplinary clinic over a period of 6 years (2008-2014) in a University Hospital in southern Brazil. RESULTS: A total of 688 out of 1945 intensive care unit survivors received care at the clinic. Of these, 45.2% had psychological disorders (particularly depression), 49.0% had respiratory impairments (abnormal spirometry), and 24.6% had moderate to intense dyspnea during daily life activities. Patients experienced weight loss during hospitalization (mean=11.7%) but good recovery after discharge (mean gain=9.1%), and 94.6% were receiving nutrition orally. One third of patients showed a reduction of peripheral muscular strength, and 5.7% had moderate to severe tetraparesis or tetraplegia. There was a significant impairment in quality of life (SF-36), particularly in the physical and emotional aspects and in functional capacity. The economic impacts on the affected families, which were mostly low-income families, were considerable. Most patients did not have full access to rehabilitation services, even though half of the families were receiving financial support from the government. CONCLUSIONS: A significant number of intensive care unit survivors evaluated 3 months after discharge had psychological, respiratory, motor, and socioeconomic problems; these findings highlight that strategies aimed to assist critically ill patients should be extended to the post-hospitalization period and that this problem is particularly important in low-income populations. PMID- 29319724 TI - Evaluation of the efficacy and safety of endovascular management for transplant renal artery stenosis. AB - OBJECTIVES: To evaluate the safety and efficacy of endovascular intervention with angioplasty and stent placement in patients with transplant renal artery stenosis. METHODS: All patients diagnosed with transplant renal artery stenosis and graft dysfunction or resistant systemic hypertension who underwent endovascular treatment with stenting from February 2011 to April 2016 were included in this study. The primary endpoint was clinical success, and the secondary endpoints were technical success, complication rate and stent patency. RESULTS: Twenty-four patients with transplant renal artery stenosis underwent endovascular treatment, and three of them required reinterventions, resulting in a total of 27 procedures. The clinical success rate was 100%. All graft dysfunction patients showed decreased serum creatinine levels and improved estimated glomerular filtration rates and creatinine levels. Patients with high blood pressure also showed improved control of systemic blood pressure and decreased use of antihypertensive drugs. The technical success rate of the procedure was 97%. Primary patency and assisted primary patency rates at one year were 90.5% and 100%, respectively. The mean follow-up time of patients was 794.04 days after angioplasty. CONCLUSION: Angioplasty with stent placement for the treatment of transplant renal artery stenosis is a safe and effective technique with good results in both the short and long term. PMID- 29319725 TI - Experimental implantation of an arterial substitute made of silicone reinforced with polyester fabric in rabbits. AB - OBJECTIVES: The aim of this study was to analyze silicone tubes with an internal diameter of 4 mm as a possible material for vascular prostheses. METHODS: Grafts were implanted into the infrarenal aortas of 33 rabbits. Fluoroscopic examinations were performed within 150 days after surgical implantation. Sample grafts were analyzed via electron microscopy to evaluate the eventual endothelialization of the prostheses. RESULTS: The patency rates of the prostheses were 87% (+/-6.7%) after 30 days, 73% (+/-9.3%) after 60 days and 48% (+/-12%) after 120 days. The material presented characteristics that support surgical implantation: good tolerance promoted by polyester tear reinforcement, ease of postoperative removal and a lack of pseudoaneurysms. However, intimal hyperplasia was a limiting factor for the patency rate. CONCLUSIONS: We concluded that polydimethylsiloxane has limited potential as an alternative material for small vascular prostheses. PMID- 29319727 TI - Risk factors for the prognosis of pediatric medulloblastoma: a retrospective analysis of 40 cases. PMID- 29319726 TI - Second hand tobacco smoke adversely affects the bone of immature rats. AB - OBJECTIVES: To evaluate the influence of secondhand cigarette smoke exposure on longitudinal growth of the tibia of growing rats and some parameters of bone quality. METHODS: Forty female rats were randomly divided into four groups: control: rats were sham exposed; 30 days: rats were exposed to tobacco smoke for 30 days; 45 days: rats were exposed to tobacco smoke for 45 days; and 60 days: rats were exposed to tobacco smoke for 60 days. Blood samples were collected to evaluate the levels of cotinine and alkaline phosphatase. Both tibias were dissected and weighed; the lengths were measured, and the bones were then stored in a freezer for analysis of bone mineral content and mechanical resistance (maximal load and stiffness). RESULTS: Exposure of rats to tobacco smoke significantly compromised bone health, suggesting that the harmful effects may be time dependent. Harmful effects on bone growth were detected and were more pronounced at 60-day follow-ups with a 41.8% reduction in alkaline phosphatase levels (p<0.01) and a decrease of 11.25% in tibia length (p<0.001). Furthermore, a 41.5% decrease in bone mineral density was observed (p<0.001), leading to a 42.8% reduction in maximum strength (p<0.001) and a 56.7% reduction in stiffness (p<0.001). CONCLUSION: Second hand cigarette smoke exposure in rats affected bones that were weaker, deforming them and making them osteopenic. Additionally, the long bone was shorter, suggesting interference with growth. Such events seem to be related to time of exposure. PMID- 29319728 TI - Cholecystectomy during ceftriaxone therapy. A translational study with a new rabbit model. AB - PURPOSE: To evaluate the actual incidence of both microlithiasis and acute cholecystitis during treatment with intravenous ceftriaxone in a new rabbit model. METHODS: New Zealand rabbits were treated with intravenous ceftriaxone or saline for 21 days. Ultrasound monitoring of the gallbladder was performed every seven days until the 21st day when histopathology, immunohistochemistry for proliferating cell nuclear antigen (PCNA), pro-caspase-3 and CD68, liver enzyme biochemistry, and chromatography analysis of the bile and sediments were also performed. RESULTS: All animals treated with ceftriaxone developed acute cholecystitis, confirmed by histopathology (P<0.05) and biliary microlithiasis, except one that exhibited sediment precipitation. In the group treated with ceftriaxone there was an increase in pro-caspase-3, gamma-glutamyl transpeptidase concentration, PCNA expression and in the number of cells positive for anti-CD68 (P<0.05). In the ceftriaxone group, the cholesterol and lecithin concentrations increased in the bile and a high concentration of ceftriaxone was found in the microlithiasis. CONCLUSION: Ceftriaxone administered intravenously at therapeutic doses causes a high predisposition for lithogenic bile formation and the development of acute lithiasic cholecystitis. PMID- 29319729 TI - Effects of nivolumab in peritoneal carcinamatosis of malign melanoma in mouse model. AB - PURPOSE: To evaluate the efficacy of nivolumab and comparison with dacarbazine (DTIC) on peritoneal carcinomatosis of malignant melanoma in mouse model. METHODS: Mouse skin melanoma cells was injected under the capsule of the peritoneal surface in the left side of the abdomen. On postoperative day ten, mouses randomised into three groups. Group 1: Control, Group 2: HIPEC (Hyperthermic intraperitoneal chemotherapy) with DTIC and Group 3: HIPEC with Nivolumab. After the sacrification on postoperative day fifteen, peritoneum evaluated macroscopically and histopathologically by using peritoneal regression grading score (PRGS). RESULTS: In the 15th day exploration, all animals developed extensive intraperitoneal tumor growth in Group 1. In Group 2 and Group 3 median tumor size was 0.7+/-0.3cm and 0.3+/-0.2cm respectively (p: 0.023). Peritoneal carcinomatosis index (PCI) were significantly lower in Group 3 than other groups (p: 0.019). The lowest total tumor nodules in group 3 was 4 +/- 2. The PGRS score was found significantly lower in Group 3 than other groups (p: 0.03). Lymphocytic response rate was found higher in the Group 3. CONCLUSIONS: It has been found that nivolumab significantly better than DTIC on peritoneal metastases of malign melanoma in mouse models. Nivolumab treatment gives promising results with pathological evidence in the treatment of metastatic disease of malignant melanoma. PMID- 29319730 TI - Effect of different commercial fat sources on brain, liver and blood lipid profiles of rats in growth phase. AB - PURPOSE: To investigate the fatty acid content of different fat sources and evaluate the effect of them on plasma and hepatic lipids and on the fatty acid profile of the brain tissue of Wistar rats. METHODS: Thirty male albino Wistar rats received for 59 days, the following diets: diet added of margarine with low content of polyunsaturated fatty acids (PUFA); diet added of margarine with high content of PUFA; diet added of butter; diet added of hydrogenated vegetable fat; diet added of soybean oil. Fatty acid profile of the lipid sources, blood and hepatic lipids fractions and fatty acid profile of the brain tissue were determined. RESULTS: Margarine consumption of provided different responses as to concentrations of blood and hepatic lipid fractions. Intake of butter and hydrogenated increased LDL-c/HDL-c ratio, being the steepest increase promoted by hydrogenated vegetable fat, which also raised LDL-c levels expressively. All fats used in the treatments reduced the cerebral concentration of docosahexaenoic acid when compared to soybean oil (control). CONCLUSION: The different fat sources commonly consumed by population provided different responses in vivo. This is particularly relevant considering the role of these lipids in the incidence and prevention of cardiovascular diseases. PMID- 29319731 TI - Comparison among bone marrow mesenchymal stem and mononuclear cells to promote functional recovery after spinal cord injury in rabbits. AB - PURPOSE: To investigate the efficacy of allogeneic mesenchymal stem-cells and autologous mononuclear cells to promote sensorimotor recovery and tissue rescue. METHODS: Female rabbits were submitted to the epidural balloon inflation method and the intravenous cells administrations were made after 8 hours or seven days after injury induction. Sensorimotor evaluation of the hindlimbs was performed, and the euthanasia was made thirty days after the treatment. Spinal cords were stained with hematoxylin and eosin. RESULTS: Both therapies given 8 hours after the injury promoted the sensorimotor recovery after a week. Only the group treated after a week with mononuclear cells showed no significant recovery at post-injury day 14. In the days 21 and 28, all treatments promoted significant recovery. Histopathological analysis showed no difference among the experimental groups. Our results showed that both bone marrow-derived cell types promoted significant sensorimotor recovery after injury, and the treatment made at least a week after injury is efficient. CONCLUSION: The possibilities of therapy with bone marrow-derived cells are large, increasing the therapeutic arsenal for the treatment of spinal cord injury. PMID- 29319732 TI - A fatal and metabolic experimental hemorrhagic shock in immature swine. AB - PURPOSE: To use blood lactate (BL) as an end-point metabolic marker for the begin resuscitation of volume replacement in experimental hemorrhagic shock. METHODS: Group I (n=7) was not bled (Control). Animals in Group II (n=7) were bled to a MAP of 30mmHg in thirty minutes. Hemodynamic and metabolic data were recorded at Baseline, at 30, 60 and 120 minutes after Baseline. The animals were intubated in spontaneous breathing (FIO2=0.21) with halothane. RESULTS: Group I all survived. In Group II all died; no mortality occurred before a BL<10mM/L. Beyond the end point all animals exhibited severe acidemia, hyperventilation and clinical signs of shock. Without treatment all animals died within 70.43+/-24.51 min of hypotension shortly after reaching an average level of BL 17.01+/-3.20mM/L. CONCLUSIONS: Swine's breathing room air spontaneously in hemorrhagic shock not treated a blood lactate over 10mM/L results fatal. The predictable outcome of this shock model is expected to produce consistent information based on possible different metabolic and hemodynamic patterns as far as the type of fluid and the timing of resuscitation in near fatal hemorrhagic shock. PMID- 29319733 TI - Biomechanic and histologic analysis of fibroblastic effects of tendon-to-bone healing by transforming growth factor beta1 (TGF-beta1) in rotator cuff tears. AB - PURPOSE: To evaluate the effect of transforming growth factor beta1 (TGF-beta1) on tendon-to-bone reconstruction of rotator cuff tears. METHODS: Seventy-two rat supraspinatus tendons were transected and reconstructed in situ. At 8 and 16 weeks, specimens of three groups; that is control, L-dose (low dose), and H-dose (high dose) were harvested and underwent a biomechanical test to evaluate the maximum load and stiffness values. Histology sections of the tendon-to-bone interface were identified by hematoxylin-eosin or Masson trichrome stain. Collagen type III was observed by picric acid sirius red staining under polarized light. The level of insulin-like growth factor 1 (IGF-1) and vascular endothelial growth factor (VEGF) was measured by the enzyme-linked immunosorbent assay (ELISA) method. RESULTS: Collagen type III of the H-dose group had a significant difference in histology structure compared with the L-dose group (P<0.05). The maximum load and stiffness decreased significantly in the control group compared with the values of the L-dose and H-dose groups. The stiffness among the three groups differed significantly at the same postoperative time (P<0.05). Interestingly, progressive reestablishment of collagen type III affected tendon to-bone healing significantly in the later stages. CONCLUSION: The H-dose was associated with an increased collagen type III morphology stimulated by TGF beta1. PMID- 29319734 TI - A prototype single-port device for pressurized intraperitoneal aerosol chemotherapy. Technical feasibility and local drug distribution. AB - PURPOSE: To evaluate the technical feasibility and homogeneity of drug distribution of pressurized intraperitoneal aerosol chemotherapy (PIPAC) based on a novel process of intraperitoneal drug application (multidirectional aerosolization). METHODS: This was an in vivo experimental study in pigs. A single-port device was manufactured at the smallest diameter possible for multidirectional aerosolization of the chemotherapeutic drug under positive intraperitoneal pressure. Four domestic pigs were used in the study, one control animal that received multidirectional microjets of 9 mL/sec for 30 min and three animals that received multidirectional aerosolization (pig 02: 9 mL/sec for 30 min; pigs 03 and 04: 3 mL/sec for 15 min). Aerosolized silver nitrate solution was applied for anatomopathological evaluation of intraperitoneal drug distribution. RESULTS: Injection time was able to maintain the pneumoperitoneum pressure below 20 mmHg. The rate of moderate silver nitrate staining was 45.4% for pig 01, 36.3% for pig 02, 36.3% for pig 03, and 72.7% for pig 04. CONCLUSIONS: Intra-abdominal drug distribution had a broad pattern, especially in animals exposed to the drug for 30 min. Our sample of only four animals was not large enough to demonstrate an association between aerosolization and a higher silver nitrate concentration in the stained abdominal regions. PMID- 29319735 TI - Tibial tunnel enlargement and joint instability after anterior cruciate ligament reconstruction. A prospective comparison between autograft and allograft. AB - PURPOSE: To investigate tibial tunnel widening and knee instability after ACL reconstruction with hamstring autograft or irradiated soft tissue allograft. METHODS: Eight-two patients were divided into two groups: autograft group and allograft group. Radiographic and clinical evaluations were performed. RESULTS: Seventy patients were followed up with median of 36.3 months (range 36-38 months). Tibial tunnel widening was at or greater than 30% for nine patients in the autograft group and 15 patients in the allograft group (P = 0.0417). The average percentage of tibial tunnel widening was 26.7 +/- 4.0 % and 29.7 +/- 5.3 % in autograft and allograft groups, respectively (P = 0.0090). Knee range of motion was not affected by the reconstruction operation or different grafts. Thigh atrophy improved significantly within 24 months after ACL reconstructions in both groups. ACL reconstruction with the allograft leaded to less knee stability than that with the autograft from one year after operation (P = 0.0023). There was no significant difference between two groups with respect to Lysholm score (P = 0.1925) and Tegner score (P =0 .0918) at the final follow-up. CONCLUSION: The allograft group reported significantly more tibial tunnel widening and knee instability compared with the autograft group. PMID- 29319736 TI - New virtual tool for accurate evaluation of facial volume. PMID- 29319737 TI - A non-living, effective model for microvascular training. AB - PURPOSE: To introduce a nonliving microvascular training model based on vessels diameter and feasibility. METHODS: We dissected ten oxen tongues, and divided the pedicles into three-thirds: proximal, middle and distal. We measured the external vessels diameter in all regions. We performed a descriptive statistical analysis. Three students (two beginner level and one intermediate level) performed this training. We evaluated the confidence, according Likert scale. RESULTS: We dissected all oxen tongues, each tongue showed two parallel pedicles. Each pedicle was located at 1.5 - 2.0 cm from the midline. Proximal median artery and vein diameter were 3.9 +/- 0.7, and 5.04 +/- 1.44mm, respectively. In the middle third, the mean artery diameter was 3.3 +/- 0.4mm, and the vein diameter was 3.5 +/- 0.9mm. The distal third showed a mean artery diameter of 2.0 +/- 0.42mm, and a vein diameter of 2.4 +/- 0.82mm. The students performed ten anastomoses. This study showed a higher confidence level (CL) (p=0.03) than the pre training CL assessment. CONCLUSION: This study suggested a feasible non-animal model for microsurgical training process for beginners and intermediate trainees. PMID- 29319738 TI - The use of nanoparticles in wound treatment: a systematic review. AB - OBJECTIVE: To analyze the effects of nanoparticle-based dressings on the wound healing process in in vitro animals and human cells based on scientific evidence. METHOD: A systematic review of the literature in LILACS, PubMed and Science Direct databases. The articles were selected and evaluated for the level of evidence by the application of STROBE. RESULTS: The sample consisted of 12 articles. The application of the products occurred in surgical wounds, burns, infected wounds and gingival ulcers in laboratory animals, as well as in vitro tests, demonstrating that among other advantages, the nanoparticle-based dressings increased the healing speed, had good antibacterial capacity and were non cytotoxic agents. CONCLUSION: Based on the analyzed articles, it can be affirmed that dressings containing nanocomposites are quite promising and are shown as a great therapeutic option in wound healing. PMID- 29319739 TI - Translation, cultural adaptation and validation of the Diabetes Attitudes Scale - third version into Brazilian Portuguese. AB - OBJECTIVE: to perform the translation, adaptation and validation of the Diabetes Attitudes Scale - third version instrument into Brazilian Portuguese. METHODS: methodological study carried out in six stages: initial translation, synthesis of the initial translation, back-translation, evaluation of the translated version by the Committee of Judges (27 Linguists and 29 health professionals), pre-test and validation. The pre-test and validation (test-retest) steps included 22 and 120 health professionals, respectively. The Content Validity Index, the analyses of internal consistency and reproducibility were performed using the R statistical program. RESULTS: in the content validation, the instrument presented good acceptance among the Judges with a mean Content Validity Index of 0.94. The scale presented acceptable internal consistency (Cronbach's alpha = 0.60), while the correlation of the total score at the test and retest moments was considered high (Polychoric Correlation Coefficient = 0.86). The Intra-class Correlation Coefficient, for the total score, presented a value of 0.65. CONCLUSION: the Brazilian version of the instrument (Escala de Atitudes dos Profissionais em relacao ao Diabetes Mellitus) was considered valid and reliable for application by health professionals in Brazil. PMID- 29319740 TI - Pregnancy complications in Brazilian puerperal women treated in the public and private health systems. AB - OBJECTIVE: to analyze the prevalence of pregnancy complications and sociodemographic profile of puerperal patients with complications, according to the form of financing of the childbirth service. METHOD: cross-sectional study with interview of 928 puerperal women whose childbirth was financed by the Unified Health System, health plans and private sources (other sources than the Unified Health System). The sample was calculated based on the births registered in the Information System on Live Births, stratified by hospital and form of financing of the childbirth service. Data were analyzed using the chi-square and Fisher's exact tests. RESULTS: the prevalence was 87.8% for all puerperal women, with an average of 2.4 complications per woman. In the case of deliveries covered by the Unified Health System, urinary tract infection (38.2%), anemia (26.0%) and leucorrhea (23.5%) were more frequent. In turn, vaginal bleeding (26.4%), urinary tract infection (23.9%) and leucorrhoea (23.7%) were prevalent in deliveries that were not covered by the Unified Health System. Puerperal women that had their delivery covered by the Unified Health System reported a greater number of intercurrences related to infectious diseases, while women who used health plans and private sources reported intercurrences related to chronic diseases. A higher frequency of puerperal adolescents, non-white women, and women without partner among those assisted in the Unified Health System (p < 0.001). CONCLUSION: the high prevalence of complications indicates the need for monitoring and preventing diseases during pregnancy, especially in the case of pregnant women with unfavorable sociodemographic characteristics. PMID- 29319741 TI - Verbal abuse and mobbing in pre-hospital care services in Chile. AB - OBJECTIVE: to determine the perception of verbal abuse and mobbing and the associated factors of paramedic technicians (nursing assistants) and professionals (nurses, midwives, kinesiologists) in the pre-hospital care areas of three regions in the south of Chile. METHODS: descriptive and correlational study was performed within the professional community and a two-stage sample of the paramedic technician population in three regions. The questionnaire "workplace violence in the health sector" (spanish version) was applied after signing the informed consent. RESULTS: 51.4% of professionals and 46.6% of paramedic technicians consider they have been verbally abused during last year. 17.6% of paramedic technicians and 13.5% of professionals perceived mobbing. A low percentage of these events are reported. In only one case of mobbing, the aggressor was legally penalized. No significant differences were found between the job categories and the studied regions. CONCLUSIONS: A high percentage of participants in each group perceived verbal abuse and non-minor percentage perceived mobbing, but most of these events are not reported. PMID- 29319742 TI - Risk prediction and impaired tactile sensory perception among cancer patients during chemotherapy. AB - OBJECTIVES: to estimate the prevalence of impaired tactile sensory perception, identify risk factors, and establish a risk prediction model among adult patients receiving antineoplastic chemotherapy. METHOD: historical cohort study based on information obtained from the medical files of 127 patients cared for in the cancer unit of a private hospital in a city in Minas Gerais, Brazil. Data were analyzed using descriptive and bivariate statistics, with survival and multivariate analysis by Cox regression. RESULTS: 57% of the 127 patients included in the study developed impaired tactile sensory perception. The independent variables that caused significant impact, together with time elapsed from the beginning of treatment up to the onset of the condition, were: bone, hepatic and regional lymph node metastases; alcoholism; palliative chemotherapy; and discomfort in lower limbs. CONCLUSION: impaired tactile sensory perception was common among adult patients during chemotherapy, indicating the need to implement interventions designed for early identification and treatment of this condition. PMID- 29319743 TI - Nursing Care Interpersonal Relationship Questionnaire: elaboration and validation. AB - OBJECTIVE: to elaborate an instrument for the measurement of the interpersonal relationship in nursing care through the Item Response Theory, and the validation thereof. METHOD: methodological study, which followed the three poles of psychometry: theoretical, empirical and analytical. The Nursing Care Interpersonal Relationship Questionnaire was developed in light of the Imogene King's Interpersonal Conceptual Model and the psychometric properties were studied through the Item Response Theory in a sample of 950 patients attended in Primary, Secondary and Tertiary Health Care. RESULTS: the final instrument consisted of 31 items, with Cronbach's alpha of 0.90 and McDonald's Omega of 0.92. The parameters of the Item Response Theory demonstrated high discrimination in 28 items, being developed a five-level interpretive scale. At the first level, the communication process begins, gaining a wealth of interaction. Subsequent levels demonstrate qualitatively the points of effectiveness of the interpersonal relationship with the involvement of behaviors related to the concepts of transaction and interaction, followed by the concept of role. CONCLUSION: the instrument was created and proved to be consistent to measure interpersonal relationship in nursing care, as it presented adequate reliability and validity parameters. PMID- 29319744 TI - Urinary incontinence in hospital patients: prevalence and associated factors. AB - OBJECTIVES: to analyze the prevalence of urinary incontinence and its associated factors in hospital patients. METHOD: this is a cross-sectional epidemiological study whose data were collected using the instruments Sociodemographic and Clinical Data, Characteristics of Urinary Leakage and International Consultation on Incontinence Questionnaire - Short Form. Prevalence was surveyed on a single day for four consecutive months. Data were analyzed using Chi-square test, Fisher's exact test, Student t-test, Mann-Whitney test and logistic regression (forward stepwise). RESULTS: the final sample consisted of 319 hospital adults (57.1% female), mean age of 47.9 years (SD=21.1). The prevalence of urinary incontinence was 22.9% (28% in women and 16.1% in men) and the associated factors were: female sex (OR=3.89), age (OR=1.03), asthma (OR=3.66), use of laxatives (OR=3.26), use of diaper during the evaluation (OR=2.75), use of diaper at home (OR=10.29), and use of diaper at some point during the hospital stay (OR=6.74). CONCLUSION: the findings of this study differ from those found in the scarce existing literature on the subject in hospital patients. There is a need for previous studies such as this before proposing the implementation of preventive and therapeutic actions during the hospital stay. PMID- 29319745 TI - Short version of the "instrument for assessment of stress in nursing students" in the Brazilian reality. AB - GOAL: validate a short version of the Instrument for assessment of stress in nursing students in the Brazilian reality. METHOD: Methodological study conducted with 1047 nursing students from five Brazilian institutions, who answered the 30 items initially distributed in eight domains. Data were analyzed in the R Statistical Package and in the latent variable analysis, using exploratory and confirmatory factor analyses, Cronbach's alpha and item-total correlation. RESULTS: The short version of the instrument had 19 items distributed into four domains: Environment, Professional Training, Theoretical Activities and Performance of Practical Activities. The confirmatory analysis showed absolute and parsimony fit to the proposed model with satisfactory residual levels. Alpha values per factor ranged from 0.736 (Environment) to 0.842 (Performance of Practical Activities). CONCLUSION: The short version of the instrument has construct validity and reliability for application to Brazilian nursing undergraduates at any stage of the course. PMID- 29319746 TI - Obesity, physical activity and prediabetes in adult children of people with diabetes. AB - OBJECTIVES: Determine prevalence of obesity / overweight, physical activity (PA) and prediabetes in adult children of parents with type 2 diabetes; identify differences according to sociodemographic variables, and describe the relationship of obesity/overweight with fasting glucose (FG) and glycosylated hemoglobin (A1C). METHODS: Cross-sectional study in 30 Mexican families with 53 participating adult children. Obesity / overweight was determined with Body Mass Index (BMI), Waist Circumference (WC) and body fat percentage (BFP); PA with the short International Physical Activity Questionnaire (IPAQ), and prediabetes with FG. RESULTS: 64% of participants presented obesity / overweight, 32% low PA, and 19% prediabetes. Men had higher WC than women (U= 219, p= 0.03). Women showed more BFP than men (U= 142, p <0.01). Blood glucose was related to BFP (rs= 0.336, p < 0.05), the A1C with the BMI (rs= 0.417, p <0.01), WC (rs= 0.394, p<0.01), BFP (rs= 0.494, p<0.01) and intense PA (rs= - 0.285, p<0.05). CONCLUSIONS: High prevalence of obesity / overweight and low PA were found. The FG was related only to BFP and A1C, in addition to BMI, WC and inversely with intense BP. It is recommended to modify the educational strategies of nursing at a family level. PMID- 29319747 TI - Effect of an orientation group for patients with chronic heart failure: randomized controlled trial. AB - OBJECTIVE: To evaluate the effect of the orientation group on therapeutic adherence and self-care among patients with chronic heart failure. METHOD: Randomized controlled trial with 27 patients with chronic heart failure. The intervention group received nursing consultations and participated in group meetings with the multi-professional team. The control group only received nursing consultations in a period of four months. Questionnaires validated for use in Brazil were applied in the beginning and in the end of the study to assess self-care outcomes and adherence to treatment. Categorical variables were expressed through frequency and percentage distributions and the continuous variables through mean and standard deviation. The comparison between the initial and final scores of the intervention and control groups was done through the Student's t-test. RESULTS: The mean adherence in the intervention group was 13.9 +/- 3.6 before the study and 4.8 +/- 2.3 after the study. In the control group it was 14.2 +/- 3.4 before the study and 14.7 +/- 3.5 after the study. The self-care confidence score was lower after the intervention (p=0.01). CONCLUSION: The orientation group does not improve adherence to treatment and self-care management and maintenance and it may reduce confidence in self-care. Registry REBEC RBR-7r9f2m. PMID- 29319748 TI - Cross-cultural adaptation and validation of the Condom Self-Efficacy Scale: application to Brazilian adolescents and young adults. AB - OBJECTIVE: translate and adapt the Condom Self-Efficacy Scale to Portuguese in the Brazilian context. The scale originated in the United States and measures self-efficacy in condom use. METHOD: methodological study in two phases: translation, cross-cultural adaptation and verification of psychometric properties. The translation and adaptation process involved four translators, one mediator of the synthesis and five health professionals. The content validity was verified using the Content Validation Index, based on 22 experts' judgments. Forty subjects participated in the pretest, who contributed to the understanding of the scale items. The scale was applied to 209 students between 13 and 26 years of age from a school affiliated with the state-owned educational network. The reliability was analyzed by means of Cronbach's alpha. RESULTS: the Portuguese version of the scale obtained a Cronbach's alpha coefficient of 0.85 and the total mean score was 68.1 points. A statistically significant relation was found between the total scale and the variables not having children (p= 0.038), condom use (p= 0.008) and condom use with fixed partner (p=0.036). CONCLUSION: the Brazilian version of the Condom Self-Efficacy Scale is a valid and reliable tool to verify the self-efficacy in condom use among adolescents and young adults. PMID- 29319749 TI - The relationship between humidity, light and the activity pattern of a velvet worm, Epiperipatus sp. (Onychophora: Peripatidae), from Bahia Drake, South Pacific of Costa Rica. AB - Even though the Onychophora represent a whole phylum, observations of their activity pattern in nature are almost non-existent. Here we report on the relationship between humidity and light and activity pattern of a new species of velvet worm, genus Epiperipatus, from four years of field observations in the South Pacific of Costa Rica. We found that most activity occurs during the driest and darkest nights of the year, in contrast with theoretical predictions. PMID- 29319750 TI - Biological screening of extracts from leaf and stem bark of Croton floribundus Spreng. (Euphorbiaceae). AB - This work describes the preliminary evaluation of cytotoxic, antimicrobial, molluscicidal, antioxidant and anticholinesterase activities from leaf (LECF) and stem bark alcoholic extracts (BECF) of the species Croton floribundus Spreng. (Euphorbiaceae), popularly known as capixingui or tapixingui. BECF presented significant toxicity (LC50 = 89.6 MUg/ml) in the Artemia salina Leach, 1819 (Crustacea: Branchiopoda) bioassay, whereas LECF did not show activity (LC50 > 1000 MUg/ml). From DPPH method, the values of IC50 for the LECF and BECF were 61.2 MUg/ml and 62.2 MUg/ml, respectively, showing that C. floribundus has an expressive antioxidant activity. Antimicrobial susceptibility was evaluated by microdilution technique and only BECF was active against Staphylococcus aureus (MIC = 39.6 MUg/ml). The extracts did not present molluscicidal activity against snail Biomphalaria glabrata Say, 1818 (Gastropoda: Planorbidae). Both extracts revealed the presence of several components with an inhibiting capacity of acetylcholinesterase enzyme on the bioautographic assay. C. floribundus showed to be a promising species considering that it exhibited good biological activity in the most assays performed. PMID- 29319751 TI - Effects of maternal high fat intake during pregnancy and lactation on total cholesterol and adipose tissue in neonatal rats. AB - AIM: Obesity during pregnancy is one of the most established risk factors for negative long-term programming. The aim of the present study was to investigate the effects of maternal consumption of a high-fat diet during pregnancy and lactation on the weight gain, visceral adipose tissue and cholesterolemia in neonatal rats. METHODS: Wistar rats were divided into two groups according to the mother's diet during pregnancy and lactation: Control group (CG, n = 12) were the offspring of rats fed a standard diet (4% lipid) and the Test group (TG, n = 12) were pups rats fed on a high fat diet (23% lipid). The weight of the animals was measured on alternate days until the 22nd day of life, when collected visceral adipose tissue and blood were collected for biochemical analysis. For statistical analysis the Student t test, Sidak's teste and two way ANOVA was used, with p <0.05. RESULTS: the test group showed differences in weight gain, visceral adipose tissue and higher cholesterol. CONCLUSION: a maternal exposure to a high fat diet during pregnancy and lactation can promote changes in weight gain, hypercholesterolemia and an increase in adipose tissue in neonatal rats. PMID- 29319752 TI - Effectiveness of aqueous and hydroalcoholic extracts of Acanthospermum australe (Loefl.) Kuntze against diarrhea-inducing bacteria. AB - Leaves and roots of Acanthospermum australe (Asteraceae) have been used in Brazilian folk medicine for the treatment of various ailments including diarrhea, skin diseases, blennorrhagia, dyspepsia, parasitic worms and malaria. The aim of study was to characterize the chemical profiles of the aqueous and hydroalcoholic extracts of leaves and roots of A. australe, and to evaluate their antimicrobial activities against diarrhea-inducing bacteria (Enterococcus faecalis, Shigella dysenteriae and Yersinia enterocolitica), as well as their cytotoxic properties. Aqueous leaf extracts were obtained by infusion, while aqueous root extracts were obtained by decoction. The hydroalcoholic leaf and root extracts were prepared by maceration in 90% ethanol for 3 days. Antimicrobial activity was assessed using standard techniques and cytotoxicity was evaluated using Chinese hamster ovary cells CHO-K1. Chemical analysis revealed the presence of tannins, flavonoids, saponins and phenolic compounds in the extracts. Although root extracts were not effective against E. faecalis, leaf extracts at concentrations of 20 mg/mL exhibited bactericidal activities against this microorganism. The hydroalcoholic root extract was unique in presenting a bactericidal effect against S. dysenteriae. None of the extracts showed bacteriostatic or bactericidal activities against Y. enterocolitica. The results presented herein demonstrate that the Gram-positive E. faecalis and the Gram-negative S. dysenteriae were susceptible to A. australe extracts, although bacteriostatic/bactericidal activities were only observed at concentrations considered too high for clinical application. Our results support the ethnopharmacological use of A. australe in the treatment of gastrointestinal disorders, particularly diarrhea caused by infectious bacteria, although further studies are required to determine the anti diarrhea effects and the toxicities of the extracts in vivo. PMID- 29319753 TI - Morphological characterization of insect galls and new records of associated invertebrates in a Cerrado area in Bahia State, Brazil. AB - In this study, we report the first records and morphological characterization of galls in a Cerrado area in western Bahia, Brazil. The data were collected monthly over two hours between March and September 2015. Fifteen gall morphotypes were found in twelve plant species distributed among seven families. The plant family with the greatest richness of galls was Fabaceae (n = 8). The following gall morphologies were found: globoid, lenticular, marginal leaf roll, conical, cylindrical, fusiform, spherical and pocket shaped. Cecidomyiidae induced globoid, lenticular, conical, fusiform, spherical and cylindrical morphotypes. In addition, species of microhymenoptera belonging to the Eulophidae, Eurytomidae and Encyrtidae families were found. Marginal leaf roll and pocket-shaped galls induced by Thysanoptera were also verified. Springtails were also identified as a successor. Undescribed species of Schizomyia and Lopesia were recorded in B. cupulata and Andira humilis, respectively. PMID- 29319754 TI - Identification and antimicrobial suceptibility profile of bacteria causing bovine mastitis from dairy farms in Pelotas, Rio Grande do Sul. AB - Mastitis is an inflammatory process of the udder tissue caused mainly by the bacteria Staphylococcus aureus. The indiscriminate use of antibiotics fosters conditions that favor the selection of resistant microorganisms, suppressing at the same time susceptible forms, causing a serious problem in dairy cattle. Given the importance in performing an antibiogram to select the most adequate antimicrobial therapy, the aim of this study was to identify bacteria isolated from cow's milk with mastitis, in dairy farms situated in the city of Pelotas, Rio Grande do Sul, and to determinate the susceptibility profile of these isolates against the antibiotics used to treat this illness. A total of 30 isolates of Staphylococcus spp., were selected from milk samples from the udder quarters with subclinical mastitis whose species were identified through the Vitek system. The susceptibility profile was performed by the disk diffusion assay, against: ampicillin, amoxicillin, bacitracin, cephalexin, ceftiofur, enrofloxacin, gentamicin, neomycin, norfloxacin, penicillin G, tetracycline and trimethoprim. In the antibiogram, 100.0% of the isolates were resistant to trimethoprim and 96.7% to tetracycline and neomycin, three strains of Staphylococcus spp., (10.0%) presented resistance to the 12 antibiotics tested and 24 (80.0%) to at least eight. These results showed the difficulty in treating mastitis, due to the pathogens' resistance. PMID- 29319755 TI - First record of galls in the tree fern Cyathea phalerata (Cyatheaceae) from a Tropical Rainforest in Brazil. PMID- 29319756 TI - Predation of Sternopygus macrurus (Bloch & Schneider, 1801) by Micrurus surinamensis (Cuvier, 1817) in one fragment forest in Amazon, Brazil. PMID- 29319757 TI - Quality of life in the treatment of chronic kidney disease: a challenge. PMID- 29319758 TI - Cytomegalovirus infection after transplantation: prevention is still the challenge. PMID- 29319759 TI - Transthoracic pulmonary ultrasonography: looking inside the lungs to better treat the dialysis patient. PMID- 29319760 TI - Acute kidney injury in critically ill obstetric patients: a cross-sectional study in an intensive care unit in Northeast Brazil. AB - INTRODUCTION: Acute kidney injury (AKI) is a complication still poorly studied in the setting of obstetric patients, which is associated with increased mortality. Objective: The aim of this study was to investigate the frequency and risk factors of AKI among critically ill obstetric patients. METHODS: A cross sectional study was conducted with all patients admitted to an intensive care unit (ICU) due to obstetric complications, in Fortaleza, Brazil, in the period between January 2012 and December 2014. AKI was defined according to AKIN criteria. RESULTS: A total of 389 patients were included, aged between 13 and 45 years. The main causes of ICU admission were pregnancy-related hypertensive syndromes (54.5%), hemorrhage and hemorrhagic shock (12.3%), heart diseases (9.0%), respiratory insufficiency (8.2%) and sepsis (5.4%). AKI was found in 92 cases (24%), and this was the most frequent complication. General mortality was 7.5%, and mortality due to AKI was 21% (p = 0.0007). In the multivariate analysis, risk factors for AKI were cesarian delivery (95% CI = 0.23-0.85, p = 0.01) and thrombocythopenia (95% CI = 1.50-4.36, p = 0.001). AKI was an independent risk factor for death (OR = 6.64, 95% CI = 3.11-14.15, p < 0.001). CONCLUSION: AKI was the main complication among critically ill obstetric patients and it was associated with increased mortality. Most cases were associated with pregnancy-related hypertensive disorders, which are complications that can be easily identified and treated during prenatal care. PMID- 29319761 TI - Isotonic sports drink promotes rehydration and decreases proteinuria following karate training. AB - INTRODUCTION: Adequate hydration status in the sport is essential for good health, yet the relationship between hydration, proteinuria and sports is little studied. OBJECTIVE: To analyze the influence of an isotonic sports drink as rehydration strategy on the hydration status and proteinuria after karate training. METHODS: Ten athletes participated in this study. In the first session of standard training, called observation training session (STO), the athletes hydrated themselves according to their habits, and in the second session of standard training, called nutritional intervention training session (STIN), an ideal practice of hydration protocol was followed, using an isotonic sports drink as a rehydration liquid during the training. The hydration status was verified by monitoring the body weight before and after training, the urine specific gravity pre-and post-training and the urine volume post-training. To observe the influence of practice of hydration on the renal function post exercise proteinuria was measured. RESULTS: We observed a statistically significant difference in urine density between the samples pre- and post-exercise only on STIN (p = 0.047). When we compare the sessions, there was a lower variation in body weight (p = 0.011) and higher urinary volume (p < 0.001), on nutritional intervention training. In STO, there was a higher percentage of athletes who showed proteinuria (70%) compared to the STIN (50%) in the urine sample after training. CONCLUSION: The use of isotonic sports drink as practice of hydration by karate athletes promoted rehydration during one session of training and reduce post-training proteinuria. PMID- 29319762 TI - Complement System and C4d expression in cases of Membranous nephropathy. AB - INTRODUCTION: Membranous nephropathy (MN) is one of the major causes of nephrotic syndrome. The complement system plays a key role in the pathophysiology of MN. OBJECTIVES: To identify the complement pathway possibly activated in MN cases and correlate the presence of C4d with more severe clinical and histological markers. METHODS: Sixty nine cases from renal biopsy with membranous nephropathy were investigated. The presence of C1q was analyzed by direct immunofluorescence; and expression of C4d by immunohistochemistry. Clinical and epidemiological data were obtained upon biopsy request. RESULTS: The presence of focal segmental glomerulosclerosis, global glomerulosclerosis, vascular lesions and tubulointerstitial fibrosis were collected by anatomopathological report. C4d(+) was found in 58 (84%), and C1q(+) was found in 12 (17%) of the cases. Twelve patients had C4d(+)/C1q(+), 46 had C4d(+)/C1q(-), and 11 patients had C4d(-)/C1q( ), probably indicating the activation of the classical, lectin and alternative pathways, respectively. CONCLUSION: C4d was associated with increased interstitial fibrosis, but not with clinical markers of poor prognosis. Through the deposition of C4d and C1q we demonstrated that all complement pathways may be involved in MN, highlighting the lectin pathway. The presence of C4d has been associated with severe tubulointerstitial lesions, but not with clinical markers, or can be taken as a universal marker of all cases of MN. PMID- 29319763 TI - Current distribution pattern of biopsy-proven glomerular disease in Salvador, Brazil, 40 years after an initial assessment. AB - INTRODUCTION: A report on the prevalence of glomerular disease diagnosed via renal biopsy in Salvador, BA, Brazil was published in 1973 and showed a predominance of membranoproliferative glomerulonephritis, which was frequently associated with hepatosplenic schistosomiasis. OBJECTIVE: In this study, we investigate the potential changes in the distribution of glomerular diseases after a period of important epidemiological transition in Brazil. METHODS: Pathology reports of all patients subjected to kidney biopsy from 2003 to 2015 in a referral nephrology service were reviewed. Clinical, laboratorial and pathological diagnoses were collected for analysis. Histological slides of the biopsies performed between 2003 and 2006 were reviewed to examine the accuracy of the estimates based on the pathology reports. RESULTS: Among the biopsies performed during the time period, 1,312 met the inclusion criteria for the study. Focal and segmental glomerulosclerosis was the most prevalent diagnosis, followed by lupus nephritis. However, a trend toward a decrease in the prevalence of focal and segmental glomerulosclerosis was detected (p < 0.05), and an increase in lupus (p < 0.0001) and membranous glomerulonephritis (p < 0.005) was observed. CONCLUSION: The data presented herein suggest the occurrence of changes in the distribution of nephrological diseases in Salvador, Brazil. The disease that was most prevalent shifted from membranoproliferative glomerulonephritis to focal and segmental glomerulosclerosis from 1975 to 2006 and from focal and segmental glomerulosclerosis to lupus nephritis from 2006 to 2015. PMID- 29319764 TI - Prevalence of chronic kidney disease in a population in southern Brazil (Pro Renal Study). AB - INTRODUCTION: Chronic kidney disease (CKD) affects 10-12% of the adult population in many countries. In Brazil, there is no reliable information about the actual prevalence of CKD. OBJECTIVE: To determine the prevalence of CKD by estimated glomerular filtration rate (eGFR) and proteinuria/albuminuria in an urban population randomly selected in Southern Brazil. Patients and. METHODS: 5,216 individuals were randomly selected out of a pool of 10,000 individuals identified from the database of a local energy company. The screening consisted of collection of demographic data, history of diabetes mellitus, hypertension, kidney/cardiovascular disease in the family and obesity through the body mass index - BMI (CKD risk factors). Blood samples were collected for determination of serum creatinine and subsequent eGFR estimation by the MDRD formula and urine samples for determination of albuminuria by dipstick. Albuminuria was further evaluated by HemoCue(c) in a selected CKD risk group. RESULTS: The population was predominantly Caucasians (93%), 64% were females and the mean age of participants was 45 years old (18-87). BMI (kg/m2) was 27+/-5. Albuminuria was found in 5.25% of individuals. 88.6% of this population had no CKD (eGFR > 60 ml/min/1.73m2 & normoalbuminuria) and 11.4% were identified as having CKD, with majority on stages 3A (7.2%) and 3B (1.1%). Hypertension, diabetes, older age and obesity was associated with a higher prevalence of CKD (p < 0.001). CONCLUSIONS: The prevalence of CKD in an urban population in southern Brazil mirrors other developed countries and indicates that kidney disease is an important public health problem in Brazil. PMID- 29319765 TI - Muscle thickness of the pectoralis major and rectus abdominis and level of physical activity in chronic hemodialysis patients. AB - INTRODUCTION: Patients on chronic hemodialysis tend to lose lean body mass and have sedentary behavior. OBJECTIVE: To compare the level of physical activity and the morphology of the muscles pectoralis major and rectus abdominis of patients on hemodialysis with healthy subjects. METHODS: We studied 17 patients and 17 healthy individuals. Muscle thickness were evaluated by ultrasound, and the level of physical activity by the International Physical Activity Questionnaire (IPAQ), long version. RESULTS: The patients had lower thicknesses of the pectoralis major (5.92 +/- 0.35 mm vs. 8.35 +/- 0.62 mm, p < 0.001) and rectus abdominis (0.96 +/- 0.10 mm vs. 2 21 +/- 0.40 mm, p < 0.001) compared to healthy subjects. Patients were physically less active than healthy individuals: 1502.55(788.19-2513.00) MET minutes/week vs. 2268.0(1680.0-4490,8) MET-minutes/week (p = 0.006); the weekly caloric expenditure of patients was also lower: 1384.0(480,7-2253.7) kcal/kg/week vs. 1680.0(1677.4-4950.0) kcal/kg/week (p = 0.010). The average time spent sitting per week of the patients was higher than in healthy subjects (394.0 +/- 33.1 min/day vs. 293.0 +/- 38.6, p = 0.009) as well as the average time spent sitting during weekend (460.0 +/- 40.1 vs. 201.0 +/- 10.7, p = 0.003). CONCLUSION: Chronic renal failure patients on hemodialysis have sedentary behavior and lower muscle thickness of the trunk. PMID- 29319766 TI - EPIC Trial: education programme impact on serum phosphorous control in CKD 5D patients on hemodialysis. AB - INTRODUCTION: In stage 5D chronic kidney disease (CKD 5D) patients, the encouragement of treatment adherence by health professionals is a significant clinical challenge. OBJECTIVES: This study evaluates the impact of a nutritional education programme on hyperphosphatemia, utilizing the transtheoretical model of behavior change (TMBC). SUBJECTS AND METHODS: A prospective interventional study comprising 179 CKD 5D patients with hypophosphatemia. The 4-month educational programme took place during dialysis sessions. Demographic and laboratory data were evaluated, whilst the TMBC was utilized both pre- and post-intervention. RESULTS: 132 patients showed a positive change and significant reduction in phosphate levels, whilst 47 patients showed a negative change and little reduction in phosphate levels. Positive changes were identified at different levels of literacy. 117/179 participants had ongoing treatment with sevelamer throughout the trial period. 61 patients with intact parathyroid hormone (iPTH) < 300pg/ml showed phosphate level reductions, whilst 118 patients with iPTH > 300 pg/ml also showed a decrease in phosphate levels. CONCLUSIONS: Nutritional education programmes can achieve excellent results when appropriately applied. An education programme may be effective across different literacy levels. PMID- 29319767 TI - Variables associated with lung congestion as assessed by chest ultrasound in diabetics undergoing hemodialysis. AB - INTRODUCTION: Ultrasound is an emerging method for assessing lung congestion but is still seldom used. Lung congestion is an important risk of cardiac events and death in end-stage renal disease (ESRD) patients on hemodialysis (HD). OBJECTIVE: We investigated possible variables associated with lung congestion among diabetics with ESRD on HD, using chest ultrasound to detect extracellular lung water. METHODS: We studied 73 patients with diabetes as the primary cause of ESRD, undergoing regular HD. Lung congestion was assessed by counting the number of B lines detected by chest ultrasound. Hydration status was assessed by bioimpedance analysis and cardiac function by echocardiography. The collapse index of the inferior vena cava (IVC) was measured by ultrasonography. All patients were classified according to NYHA score. Correlations of the number of B lines with continuous variables and comparisons regarding the number of B lines according to categorical variables were performed. Multivariate linear regression was used to test the variables as independent predictors of the number of B lines. RESULTS: None of the variables related to hydration status and cardiac function were associated with the number of B lines. In the multivariate analysis, only the IVC collapse index (b = 45.038; p < 0.001) and NYHA classes (b = 13.995; p = 0.006) were independent predictors of the number of B lines. CONCLUSION: Clinical evaluation based on NYHA score and measurement of the collapsed IVC index were found to be more reliable than bioimpedance analysis to predict lung congestion. PMID- 29319768 TI - The current burden of cytomegalovirus infection in kidney transplant recipients receiving no pharmacological prophylaxis. AB - : Cytomegalovirus (CMV) infection in kidney transplantation has changed its clinical spectrum, mostly due to the current and more effective immunosuppression. In the absence of preventive strategies it is associated with significant morbi-mortality. OBJECTIVE: This study evaluated the incidence of CMV events and its effect on outcomes of kidney transplantation in recipients without pharmacological prophylaxis or targeted preemptive treatment. RESULTS: The study cohort comprised 802 recipients of kidney transplants between 04/30/2014 and 04/30/2015. The majority received induction with anti-thymocyte globulin (81.5%), tacrolimus and prednisone in combination with either mycophenolate (46.3%) or azathioprine (53.7%). The overall incidence of CMV events was 42% (58.6% infection and 41.4% disease). Patients with CMV showed higher incidence of first treated acute rejection (19 vs. 11%, p = 0,001) compared with those without CMV but no differences in graft loss, death or loss to follow-up. The incidence of delayed graft function was higher (56% vs. 37%, p = 0.000) and the eGFR at 1 (41 +/- 21 vs. 54 +/- 28 ml/min, p = 0.000) and 12 months (50 +/- 19 vs. 61 +/- 29 ml/min, p = 0.000) were lower in patients with CMV. Recipients age (OR = 1.03), negative CMV serology (OR = 5.21) and use of mycophenolate (OR = 1.67) were associated with increased risk of CMV. Changes in immunosuppression was more often in patients with CMV (63% vs. 31%, p = 0.000). CONCLUSION: the incidence of CMV events was high and associated with higher incidence of acute rejection and changes in immunosuppression. Besides traditional risk factors, renal function at 1 month was independently associated with CMV infection. PMID- 29319769 TI - Impact of an early physiotherapy program after kidney transplant during hospital stay: a randomized controlled trial. AB - INTRODUCTION: Cardiorespiratory and musculoskeletal dysfunctions are common in the postoperative period of kidney transplant patients and are often accompanied by low exercise tolerance. OBJECTIVE: The purpose of this study was to evaluate the impact of an early physiotherapy program during hospital stay on functional capacity and peripheral and respiratory muscle strength after kidney transplant. METHODS: An open, randomized clinical trial was conducted in patients undergoing living donor kidney transplant. Sixty-three patients were included (intervention group-IG: n = 30; control group-CG: n = 33). IG received an early physiotherapy program from first postoperative day until hospital discharge and CG received standard care. The variables of interest were measured preoperatively and at discharge except for respiratory muscle strength and vital capacity (VC), which were also measured on the first postoperative day. Functional capacity was evaluated through six-minute walk test (6MWT); peripheral and respiratory muscle strength using a dynamometer and manovacuometer, respectively; and VC through spirometer. RESULTS: After surgery, there was a reduction in functional walking capacity and peripheral muscle strength without different between groups (p > 0.05); however, respiratory muscle strength was significantly higher in IG (p < 0.001) at hospital discharge, when comparing with CG. CONCLUSIONS: An early physiotherapy program during hospitalization for patients undergoing living donor kidney transplant caused a lower reduction in respiratory muscle strength and without additional benefits in the functional capacity, when compared to a control group, although the clinical relevance of this finding is uncertain. PMID- 29319770 TI - Factors associated with hospital mortality in renal transplant patients admitted to the intensive care unit with acute respiratory failure. AB - INTRODUCTION: The lungs are often involved in a variety of complications after kidney transplantation. Acute respiratory failure (ARF) is one of the most serious manifestations of pulmonary involvement. OBJECTIVE: To describe the main causes of ARF in kidney transplant patients who require intensive care and identify the factors associated with mortality. METHODS: This retrospective study evaluated adult patients with ARF admitted to the intensive care unit of a center with high volume of transplants from August 2013 to August 2015. Demographic, clinical, and transplant characteristics were analyzed. Multivariate logistic regression analysis was performed to identify factors associated with hospital mortality. RESULTS: 183 patients were included with age of 55.32 +/- 13.56 years. 126 (68.8%) were deceased-donor transplant, and 37 (20.2%) patients had previous history of rejection. The ICU admission SAPS3 and SOFA score were 54.39 +/- 10.32 and 4.81 +/- 2.32, respectively. The main cause of hospitalization was community acquired pneumonia (18.6%), followed by acute pulmonary edema (15.3%). Opportunistic infections were common: PCP (9.3%), tuberculosis (2.7%), and cytomegalovirus (2.2%). Factors associated with mortality were requirement for vasopressor (OD 8.13, CI 2.83 to 23.35, p < 0.001), invasive mechanical ventilation (OD 3.87, CI: 1.29 to 11.66, p = 0.016), and SAPS3 (OD 1.04, CI 1.0 to 1.08, p = 0.045). CONCLUSION: Bacterial pneumonia is the leading cause of ARF requiring intensive care, followed by acute pulmonary edema. Requirement for vasopressor, invasive mechanical ventilation and SAP3 were associated with hospital mortality. PMID- 29319771 TI - Peritoneal dialysis as the first dialysis treatment option initially unplanned. AB - Most patients with stage 5 CKD start RRT of unplanned manner. Unplanned dialysis, also known as urgent start, may be defined as hemodialysis (HD) started without permanent vascular access, i.e., using a central venous catheter (CVC), or as peritoneal dialysis (PD) started within seven days after implantation of the catheter, without family training. Although few studies have evaluated the PD as an immediate treatment option for patients starting urgent RRT, theirs results suggest that it is a feasible and safe alternative, with infectious complications and survival similar to patients treated with unplanned HD. Given the importance of the social role of urgent start of dialysis and the lack of studies on the subject, this narrative review aims to analyze and synthesize knowledge in published articles, preferably, from last five years in order to unify information and facilitate future studies. PMID- 29319772 TI - Clinical and histological features of patients with membranoproliferative glomerulonephritis classified by immunofluorescence findings. AB - BACKGROUND: New classification for membranoproliferative glomerulonephritis has been proposed in the literature. The aim of this study was to compare the clinical, biochemical, etiology and renal biopsy findings of these patients grouped by immunofluorescence as proposed by the new classification. METHODS: Patients with renal biopsy-proven membranoproliferative glomerulonephritis unrelated to systemic lupus erythematosus, diagnosed between 1999 and 2014. The patients were divided according to immunofluorescence: Immunoglobulin positive group, C3 positive only and negative immunofluorescence group. RESULTS: We evaluated 92 patients, the majority of which were in the immunoglobulin positive group. Infectious diseases, hepatitis C virus and schistosomiasis, were the most frequent etiology. A negative immunofluorescence group had more vascular involvement in renal biopsy compare with others groups. CONCLUSIONS: The only difference between the groups was higher vascular involvement in renal biopsy in negative immunofluorescence group. These new classification was satisfactory for the finding of etiology in one part of the cases. PMID- 29319773 TI - ANCA-Positive pauci-immune crescentic glomerulonephritis in a patient with systemic lupus erythematosus. AB - The pauci-immune crescentic glomerulonephritis (PICGN) is generally associated with small-vessel vasculitis with a few reported cases associated with other autoimmune diseases such as Systemic Lupus Erythematosus (SLE). We present the case of a female 34-year-old patient with acute kidney injury symptoms with indication for renal replacement therapy in the context of clinical SLE diagnosis. A kidney biopsy was conducted and it was found that most glomeruli showed some segmental sclerosis with synechia to the Bowman's capsule. 67% of the glomeruli had fibroepithelial crescents. Moreover, the interstitial space had a moderate lymphomononuclear infiltration and mild fibrosis. In the arterioles, there were walls thickened by subintimal sclerosis. Direct immunofluorescence detected limited IgM and C3 deposits in capillary loops and negative mensangium for IgG, IgA and C1q. A therapy using corticosteroids and intravenous cyclophosphamide was initiated with stable evolution. PICGN associated with SLE is a rare pathology with clinical presentation, varied evolution and without a standard medical treatment. PMID- 29319774 TI - Renal artery pseudoaneurysm. AB - The renal artery pseudoaneurysm embody a rare vascular complication coming of percutaneous procedures, renal biopsy, nephrectomy, penetrating traumas and more rarely blunt traumas. The clinical can be vary according the patient, the haematuria is the symptom more commom. Is necessary a high level of clinical suspicion for your diagnosis, this can be elucidated by through complementary exams as the eco-color Doppler and the computed tomography scan (CT). This report is a case of a patient submitted a right percutaneous renal biopsy and that, after the procedure started with macroscopic haematuria, urinary tenesmus and hypogastric pain. The diagnosis of pseudoaneurysm was given after one week of evolution when the patient was hospitalized because gross haematuria, tachycardia, hypotension and hypochondrium pain. In the angiotomography revealed a focal dilation of the accessory right renal inferior polar artery, dilation of renal pelvis and all the ureteral course with presence hyperdenso material (clots) inside the middle third of the ureter. The treatment for the majority of this cases are conservative, through arterial embolization, indicated for thouse of smaller dimensions in patients who are hemodynamically stable. However, it was decided by clinical treatment with aminocaproic acid 1 g, according to previous studies for therapy of haematuria. The patient received discharge without evidence of macroscopic haematuria and with normal renal ultrasound, following ambulatory care. PMID- 29319775 TI - Primary hiperoxaluria diagnosed after kidney transplantation: report of 2 cases and literature review. AB - Primary hyperoxaluria (PH) is a very rare genetic disorder; it is characterized by total or partial deficiency of the enzymes related to the metabolism of glyoxylate, with an overproduction of calcium oxalate that is deposited in different organs, mainly the kidney, leading to recurrent lithiasis, nephrocalcinosis and end stage renal disease (ESRD). In patients with ESRD that receive kidney transplantation alone, the disease has a relapse of 100%, with graft loss in a high percentage of patients in the first 5 years of transplantation. Three molecular disorders have been described in PH: mutation of the gene alanin glioxalate aminotransferase (AGXT); glyoxalate reductase/hydroxy pyruvate reductase (GRHPR) and 4-OH-2-oxoglutarate aldolase (HOGA1). We present two cases of patients with a history of renal lithiasis who were diagnosed with primary hyperoxaluria in the post-transplant period, manifested by early graft failure, with evidence of calcium oxalate crystals in renal biopsy, hyperoxaluria, hyperoxalemia, and genetic test compatible; they were managed with proper diet, abundant oral liquids, pyridoxine, hydrochlorothiazide and potassium citrate; however, they had slow but progressive deterioration of their grafts function until they reached end-stage chronic renal disease. PMID- 29319776 TI - Hypercalcemia and acute renal insufficiency following use of a veterinary supplement. AB - A previously healthy 24 yo male presented with a two-month history of epigastric pain, nausea, vomiting, fatigue and malaise. He reported abuse of different substances, including an injectable veterinary vitamin compound, which contains high doses of vitamin A, D and E, and an oily vehicle that induces local edema and enhances muscle volume. Serum creatinine was 3.1 mg/dL, alanine transaminase 160 mg/dL, aspartate transaminase 11 mg/dL, total testosterone 23 ng/dL, 25-OH vitamin D >150 ng/mL (toxicity >100), 1,25-OH-vitamin D 80 pg/mL, vitamin A 0.7 mg/dL, parathormone <3 pg/mL, total calcium 13.6 mg/dL, 24-hour urinary calcium 635 mg/24h (RV 42-353). A urinary tract ultrasound demonstrated signs of parenchymal nephropathy. The diagnosis was hypercalcemia and acute renal failure secondary to vitamin D intoxication. He was initially treated with intravenous hydration, furosemide and prednisone. On the fifth day of hospitalization a dose of pamidronate disodium was added. The patient evolved with serum calcium and renal function normalization. Thirty days later he presented normal clinical and laboratory tests, except 25-OH-vitamin D that was persistently increased (107 ng/mL), as it may take several months to normalize. This case report is a warning of the risks related to the use of veterinary substances for aesthetics purposes. PMID- 29319777 TI - Encapsulating peritoneal sclerosis: case report. AB - Patients with chronic kidney disease (CDK) can develop several diseases caused by the renal replacement therapy. Here we report a rare complication of peritoneal dialysis, the encapsulating peritoneal sclerosis (EPS) in which the peritoneal tissue is gradually replaced by fibrous tissue. The patient in question, after late loss of renal graft and conversion to peritoneal dialysis, evolved with multiple hospitalizations for spontaneous bacterial infections, in recent admission, he was diagnosed with sub-occlusive abdomen secondary to the EPS. Five days after, presented with intestinal obstruction requiring surgical approach by laparotomy, being performed with right colectomy, enterectomy, enteroraphy and ileostomy with drainage. The patient progressed well and follows on prednisone and tamoxifen-associated with intermittent hemodialysis. PMID- 29319778 TI - Granulomatous intersticial nephritis secondary to sarcoidosis. AB - INTRODUCTION: Granulomatous interstitial nephritis is a rare condition, in which renal involvement is uncommon. Its etiology is variable, and may be medicinal, infectious or inflammatory origin. CASE REPORT: This is a 65-year-old male patient with renal lesions of unknown etiology, associated with hypercalcaemia. During the investigation, cardiac insufficiency with diastolic dysfunction and interstitial lung involvement on chest tomography were evidenced. Renal function (glomerular filtration rate) has partially improved with clinical measures. Renal biopsy was performed, which showed moderate interstitial lesion with tuberculoid granulomas without caseous necrosis. CONCLUSION: The objective of the article was to describe a case of NIG and to alert to the importance of its clinical investigation. In this case, renal biopsy, associated with systemic clinical manifestations, contributed to the diagnosis of sarcoidosis. PMID- 29319779 TI - Recovery of renal function after bilateral renal vein thrombo sis episode as complication of membranous glomerulopa thy: case report. AB - Renal vein thrombosis (RVT) is a complication often associated with nephrotic syndrome. It occurs due to a state of hypercoagulability common in the diseases that attend to this syndromic diagnosis. It should be suspected whenever there is nephrotic syndrome associated with sudden flank pain, hematuria and worsening of proteinuria. Bilateral RVT also presents with frequently oliguric renal dysfunction. This case reports a 33-year-old patient hospitalized for a nephrotic syndrome, with etiologic investigation suggestive of primary membranous glomerulopathy, which evolved with bilateral RVT associated with deterioration of renal function and need for renal replacement therapy. He promptly performed angiography with thrombectomy and thrombolysis, evolving with recovery of renal function in two weeks. PMID- 29319780 TI - Diabetes mellitus and hyperkalemic renal tubular acidosis: case reports and literature review. AB - Hyporeninemic hypoaldosteronism, despite being common, remains an underdiagnosed entity that is more prevalent in patients with diabetes mellitus. It presents with asymptomatic hyperkalemia along with hyperchloraemic metabolic acidosis without significant renal function impairment. The underlying pathophysiological mechanism is not fully understood, but it is postulated that either aldosterone deficiency (hyporeninemic hypoaldosteronism) and/or target organ aldosterone resistance (pseudohypoaldosteronism) may be responsible. Diagnosis is based on laboratory parameters. Treatment strategy varies according to the underlying pathophysiological mechanism and etiology and aims to normalize serum potassium. Two clinical cases are reported and the relevant literature is revisited. PMID- 29319781 TI - A future for nephrology? AB - It is interesting that some of my predictions came true and some did not, but I think the jury is still out on many of them. I start to remind everyone on the glorious past of Nephrology, from the physiology, translational and methodological discoveries that have contributed to the development of our discipline. I predict that the Academic branch of Nephrology will continue to excel in three domains: Creative Research,Teaching (Training) and Innovative Clinical Care. I forsee dramatic changes in Nephrology practice in the short term (10 years) and I discuss which areas will have a most dramatic impact. Many developments will likely curtail the growth of CKD and decrease the burden of ESRD on society. The greatest challenge will be to ensure that what can be done to alleviate suffering and premature death from kidney disease will be done, in a cost-effective manner, and that all patients with kidney disease have reasonable and timely access to care for their illnesses. Nephrologists practicing in the second quarter of the 21st Century and beyond will be justifiably proud of their discipline, just as their predecessors have. PMID- 29319782 TI - TINU syndrome in a 14-year old boy. PMID- 29319783 TI - Commentary on: Dorsal Preservation: The Push Down Technique Reassessed. PMID- 29319784 TI - The effect of isabelin, a sesquiterpene lactone from Ambrosia artemisiifolia on soil microorganisms and human pathogens. AB - Ambrosia artemisiifolia L. (common ragweed) is an invasive weed, which is well known for the strong allergenic effect of its pollen as well as for its invasiveness and impact in crop fields (e.g. causing yield losses). This species produces a broad range of sesquiterpenoids. In recent years, new bioactive molecules have been discovered in this plant, e.g. isabelin, a sesquiterpene dilactone. The bioactivity of isabelin has been already demonstrated on allergy related receptors and its inhibitory effect on seeds of various plant species. Isabelin was tested for potential antimicrobial effects by using a selection of soil-borne bacteria and fungi and three human pathogens as model organisms. For the majority of microorganisms tested, no antimicrobial activity of isabelin was observed. However, isabelin revealed strong antimicrobial activity against the Gram-positive soil bacterium Paenibacillus sp. and against the Gram-positive, multidrug-resistant Staphylococcus aureus. The observed inhibitory activity of isabelin can enlighten the importance to study similar compounds for their effect on human pathogens and on soil and rhizosphere microorganisms. PMID- 29319785 TI - Diagnostic accuracy and prognostic value of simultaneous hybrid 18F fluorodeoxyglucose positron emission tomography/magnetic resonance imaging in cardiac sarcoidosis. AB - Aims: Cardiac death is the leading cause of mortality in patients with sarcoidosis, yet cardiac involvement often remains undetected. Cardiovascular magnetic resonance imaging (CMR) and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) have been used to diagnose cardiac sarcoidosis (CS) yet never simultaneously in a cohort. This study sought to assess the diagnostic and prognostic utility of simultaneous hybrid cardiac PET/MR. Methods and results: Fifty-one consecutive patients with suspected CS (age 50 +/- 13 years, 31 males) underwent simultaneous PET/MR following a high-fat/low-carbohydrate diet and 12-h fast. Blinded image analysis of FDG uptake and late gadolinium enhancement (LGE) was performed using the American Heart Association (AHA) 16-segment model. The sensitivity and specificity of PET/MR for diagnosing CS was estimated using the Japanese Ministry of Health and Welfare guidelines. The primary endpoint was a composite of death, aborted sudden cardiac death, sustained ventricular arrhythmia, complete heart block, and hospital admission with decompensated heart failure. The secondary endpoints were a fall in left ventricular ejection fraction (LVEF) >10%, non-sustained ventricular tachycardia and other cardiac related hospital admission. The prevalence of CS was 65% (n = 33). The sensitivity of PET and CMR alone for detecting CS was 0.85 and 0.82, respectively. Hybrid PET/MR was superior for detecting CS with sensitivity, specificity, positive, and negative predictive values of 0.94, 0.44, 0.76, and 0.80, respectively. There was poor inter-modality agreement for the location of cardiac abnormalities (k = 0.02). Over the median follow-up of 2.2 years, there were 18 (35%) adverse events. Cardiac RV PET abnormalities and presence of LGE were independent predictors of adverse events. Abnormalities found on both PET and magnetic resonance imaging was the strongest predictor of major adverse cardiac events. Conclusion: Simultaneous PET/MR is an accurate method for diagnosing CS. FDG-PET and CMR combined offers complementary information on disease pathophysiology. The presence of LGE and FDG uptake on PET/MR identifies patients at higher risk of adverse events. PET and CMR should therefore be considered in the assessment of disease presence, stage, and prognosis in CS. PMID- 29319786 TI - A Transmissible Rash of Palms and Soles in a 58-Year-Old Man. PMID- 29319787 TI - Dorsal Preservation: The Push Down Technique Reassessed. AB - Management of the nasal dorsum remains a challenge in rhinoplasty surgery. Currently, the majority of reduction rhinoplasties results in destruction of the keystone area (K-area), which requires reconstruction with either spreader grafts or spreader flaps, both for aesthetic and functional reasons. This article will present the senior author's current operative technique for dorsal preservation in reduction rhinoplasty based on 320 clinical cases performed over a 5-year period. The author's operative technique is as follows: (1) endonasal approach; (2) removal of a septal strip in the subdorsal area whose shape and height were determined preoperatively; (3) complete lateral, transverse, and radix osteotomies; and (4) dorsal reduction utilizing either a push down operation (PDO) or a let down operation (LDO). The PDO consists of downward impaction of the fully mobilized nasal pyramid and is utilized in patients with smaller humps (Less than 4 mm). The LDO consists of a maxillary wedge resection and is performed in patients who need more than 4 mm of lowering. A total of 320 patients had a dorsal preservation operation (DPO). Postoperatively, there were no dorsal irregularities nor inverted-V deformities. Among our 44 personal revision cases, 27 patients (8.74%) had had a previous DPO, 16 of whom required tip revisions with no further dorsal surgery. Of the remaining 11 patients, the main problems were either hump recurrence and/or lateral deviation of the dorsum or widening of the middle third, which required simple surgical revision. Based on the authors' experience, adoption of a PDO/LDO is justified in selected primary patients. The key question before any primary rhinoplasty procedure should be "Can I keep the nasal dorsum intact?" Precise analysis and surgical execution are required to preserve the dorsal osseocartilaginous vault and K area. Dorsal preservation results in more natural postoperative dorsum lines and a "not operated" aspect without the need for midvault reconstruction. Moreover, this technique is quick and easy to perform by any rhinoplasty surgeon. Rhinoplasty surgeons should consider incorporating dorsal preservation techniques in their surgical armamentarium rather than relying solely on the Joseph reduction method or an open structure rhinoplasty. PMID- 29319788 TI - Relationship of loop diuretic use with exercise intolerance in heart failure with preserved ejection fraction. PMID- 29319790 TI - The Preservation Rhinoplasty: A New Rhinoplasty Revolution. PMID- 29319789 TI - Parent-targeted home-based interventions for increasing fruit and vegetable intake in children: a systematic review and meta-analysis. AB - Context: Parent interventions delivered in the home represent a valuable approach to improving children's diets. Objective: This review aims to examine the effectiveness of parent-targeted in-home interventions in increasing fruit and vegetable intake in children. Data Sources: Five electronic databases were searched: MEDLINE, Embase, PubMed, CINAHL, and PsycINFO. Study Selection: Randomized and nonrandomized trials conducted in children aged 2 to 12 years and published in English from 2000 to 2016 were eligible. Data Extraction: Eighteen publications were reviewed, and 12 randomized trials were analyzed. Studies were pooled on the basis of outcome measure and type of intervention, resulting in 3 separate meta-analyses. Results: Nutrition education interventions resulted in a small but significant increase in fruit intake (Hedges' g = 0.112; P = 0.028). Taste exposure interventions led to a significant increase in vegetable intake, with a moderate effect (Hedges' g = 0.438; P < 0.001). Interventions involving daily or weekly sessions reported positive outcomes more frequently than those using monthly sessions. Conclusions: Future interventions should incorporate regular taste exposure to maximize increases in vegetable intake in children. This is particularly important because fewer children meet national recommendations for vegetable intake than for fruit intake. PMID- 29319791 TI - Doxycycline photosensitivity. PMID- 29319793 TI - Facing Fears; If Medication Runs Out. PMID- 29319792 TI - Oncogenic osteomalacia. PMID- 29319794 TI - An observational analysis of insulinoma from a single institution. AB - Background: Insulinoma is the commonest functioning pancreatic neuroendocrine tumor causing hyperinsulinemic hypoglycemia. Aim: This study is aimed to evaluate the clinical features, preoperative laboratory and imaging diagnosis and pathologic findings of insulinoma. Methods: Data of the patients from 2001 to 2016 diagnosed as insulinoma in Tongji Hospital, China were retrospectively extracted and analyzed. Results: A total of 40 patients were diagnosed as insulinoma with a male/female ratio of 0.68:1. The median onset age was 46.5 years. Nearly all the included patients presented neurological symptoms and 60% presented autonomic symptoms. More than 95% of the patients met the functional European Neuroendocrine Tumor Society criteria including glucose, insulin and C peptide levels. The preoperative detection rates of ultrasonography, enhanced computed tomography, magnetic resonance imaging, and endoscopic ultrasonography were 60.50%, 84.95%, 80% and 83.3% respectively. The joint imaging examinations can markedly increase the detection rate. The mean tumor size was 1.89 +/- 0.72 cm. Ki-67 index by histopathological diagnosis were all less than 20%. The positive rates of insulin, synaptophysin and chromogranin A were close to 100%. Conclusion: Laboratory tests of glucose, insulin and C-peptide are reliable for preoperative diagnosis. Combination of the imaging examinations can improve the diagnosis. PMID- 29319795 TI - N-Acetyl-2-Aminofluorene (AAF) Processing in Adult Rat Hepatocytes in Primary Culture Occurs by High-Affinity Low-Velocity and Low-Affinity High-Velocity AAF Metabolite-Forming Systems. AB - N-acetyl-2-aminofluorene (AAF) is a procarcinogen used widely in physiological investigations of chemical hepatocarcinogenesis. Its metabolic pathways have been described extensively, yet little is known about its biochemical processing, growth cycle expression, and pharmacological properties inside living hepatocytes the principal cellular targets of this hepatocarcinogen. In this report, primary monolayer adult rat hepatocyte cultures and high specific-activity [ring G-3 H]-N acetyl-2-aminofluorene were used to extend previous observations of metabolic activation of AAF by highly differentiated, proliferation-competent hepatocytes in long-term cultures. AAF metabolism proceeded by zero-order kinetics. Hepatocytes processed significant amounts of procarcinogen (~12 MUg AAF/106 cells/day). Five ring-hydroxylated and one deacetylated species of AAF were secreted into the culture media. Extracellular metabolite levels varied during the growth cycle (days 0-13), but their rank quantitative order was time invariant: 5-OH-AAF > 7-OH-AAF > 3-OH-AAF > N-OH-AAF > aminofluorene (AF) > 1-OH AAF. Lineweaver-Burk analyses revealed two principal classes of metabolism: System I (high-affinity and low-velocity), Km[APPARENT] = 1.64 * 10-7 M and VMAX[APPARENT] = 0.1 nmol/106 cells/day and System II (low-affinity and high velocity), Km[APPARENT] = 3.25 * 10-5 M and VMAX[APPARENT] = 1000 nmol/106 cells/day. A third system of metabolism of AAF to AF, with Km[APPARENT] and VMAX[APPARENT] constants of 9.6 * 10-5 M and 4.7 nmol/106 cells/day, was also observed. Evidence provided in this report and its companion paper suggests selective roles and intracellular locations for System I- and System II-mediated AAF metabolite formation during hepatocarcinogenesis, although some of the molecules and mechanisms responsible for multi-system processing remain to be fully defined. PMID- 29319796 TI - The focus in the diagnostic workup of miliary pulmonary shadowing. PMID- 29319797 TI - An In Silico Comparison of Protocols for Dated Phylogenomics. AB - In the age of genome-scale DNA sequencing, choice of molecular marker arguably remains an important decision in planning a phylogenetic study. Using published genomes from 23 primate species, we make a standardized comparison of four of the most frequently used protocols in phylogenomics, viz., targeted sequence enrichment using ultraconserved element and exon-capture probes, and restriction site-associated DNA sequencing (RADseq and ddRADseq). Here, we present a procedure to perform in silico extractions from genomes and create directly comparable data sets for each class of marker. We then compare these data sets in terms of both phylogenetic resolution and ability to consistently and precisely estimate clade ages using fossil-calibrated molecular-clock models. Furthermore, we were also able to directly compare these results to previously published data sets from Sanger-sequenced nuclear exons and mitochondrial genomes under the same analytical conditions. Our results show-although with the exception of the mitochondrial genome data set and the smallest ddRADseq data set-that for uncontroversial nodes all data classes performed equally well, that is they recovered the same well supported topology. However, for one difficult-to-resolve node comprising a rapid diversification, we report well supported but conflicting topologies among the marker classes consistent with the mismodeling of gene tree heterogeneity as demonstrated by species tree analyses of single nucleotide polymorphisms. Likewise, clade age estimates showed consistent discrepancies between data sets under strict and relaxed clock models; for recent nodes, clade ages estimated by nuclear exon data sets were younger than those of the UCE, RADseq and mitochondrial data, but vice versa for the deepest nodes in the primate phylogeny. This observation is explained by temporal differences in phylogenetic informativeness (PI), with the data sets with strong PI peaks toward the present underestimating the deepest node ages. Finally, we conclude by emphasizing that while huge numbers of loci are probably not required for uncontroversial phylogenetic questions-for which practical considerations such as ease of data generation, sharing, and aggregating, therefore become increasingly important-accurately modeling heterogeneous data remains as relevant as ever for the more recalcitrant problems. PMID- 29319798 TI - Volunteering Among Older Adults: Life Course Correlates and Consequences. PMID- 29319799 TI - Facilitating circular permutation using Restriction Free (RF) cloning. AB - Circular permutation is a powerful tool to test the role of topology in protein folding and function. Previous methods for generating circular permutants were based on rearranging gene elements using restriction enzymes-based cloning. Here, we present a Restriction Free (RF) approach to achieve circular permutation which is faster and more cost-effective. PMID- 29319800 TI - Characterization of a novel endo-type alginate lyase derived from Shewanella sp. YH1. AB - Alginate, which is an anionic polysaccharide, is widely distributed in the cell wall of brown algae. Alginate and the products of its degradation (oligosaccharides) are used in stabilizers, thickeners and gelling agents, especially in the food industry. The degradation of alginate generally involves a combination of several alginate lyases (exo-type, endo-type and oligoalginate lyase). Enhancing the efficiency of the production of alginate degradation products may require the identification of novel alginate lyases with unique characteristics. In this study, we isolated an alginate-utilizing bacterium, Shewanella sp. YH1, from seawater collected off the coast of Tottori prefecture, Japan. The detected novel alginate lyase was named AlgSI-PL7, and was classified in polysaccharide lyase family 7. The enzyme was purified from Shewanella sp. YH1 and a recombinant AlgSI-PL7 was produced in Escherichia coli. The optimal temperature and pH for enzyme activity were around 45 degrees C and 8, respectively. Interestingly, we observed that AlgSI-PL7 was not thermotolerant, but could refold to its active form following an almost complete denaturation at approximately 60 degrees C. Moreover, the degradation of alginate by AlgSI-PL7 produced two to five oligosaccharides, implying this enzyme was an endo-type lyase. Our findings suggest that AlgSI-PL7 may be useful as an industrial enzyme. PMID- 29319801 TI - Not So Golden After All: The Complexities of Chronic Low Back Pain in Older Adulthood. AB - Background and Objectives: The study objective was to understand how Chronic low back pain (CLBP) impacts key aging concepts such as retirement, housing, health, and independence. Research Design and Methods: Twenty-one pain clinic patients (66-83 years old) with CLBP engaged in 23 in-depth semistructured interviews, which were audio-recorded and transcribed verbatim. Guided by van Manen's phenomenological method, researchers used line-by-line thematic coding to analyze data through an iterative process. Results: Participants' accounts illustrate the interplay between aging and living with CLBP. Under the larger theme "Not so golden after all," results are reflected in five subthemes: (a) Falling apart; (b) Pain stigmatizes aging; (c) Hurting slowly, aging quickly; (d) Pain threatens independence; (e) The reality of unrealized futures. Discussion and Implications: This study improves our understanding of how CLBP complicates growing older with regard to tarnished retirements and stigmatization. Findings highlight the importance of coordinated care and recognition of pain-related loss. PMID- 29319802 TI - Functional analysis of arginine decarboxylase gene speA of Bacteroides dorei by markerless gene deletion. AB - Polyamine concentrations in the intestine are regulated by their biosynthesis by hundreds of gut microbial species and these polyamines are involved in host health and disease. However, polyamine biosynthesis has not been sufficiently analyzed in major members of the human gut microbiota, possibly owing to a lack of gene manipulation systems. In this study, we successfully performed markerless gene deletion in Bacteroides dorei, one of the major members of the human gut microbiota. The combination of a thymidine kinase gene (tdk) deletion mutant and a counter-selection marker tdk, which has been applied in other Bacteroides species, was used for the markerless gene deletion. Deletion of tdk in B. dorei caused 5-fluoro-2?-deoxyuridine resistance, suggesting the utility of B. dorei Deltatdk as the host for future markerless gene deletions. Compared to parental strains, an arginine decarboxylase gene (speA) deletion mutant generated in this system showed a severe growth defect and decreased concentration of spermidine in the cells and culture supernatant. Collectively, our results indicate the accessibility of gene deletion and the important role of speA in polyamine biosynthesis in B. dorei. PMID- 29319803 TI - Down-regulation of glutamate release from hippocampal neurons by sialidase. AB - Sialidase, which removes sialic acid residues in sialylglycoconjugates, is essential for hippocampal memory and synaptic plasticity. Enzyme activity of sialidase is rapidly increased in response to neural excitation. Because sialic acid bound to gangliosides such as the tetra-sialoganglioside GQ1b is crucial for calcium signalling and neurotransmitter release, neural activity-dependent removal of sialic acid may affect hippocampal neurotransmission. In the present study, we found that 2-deoxy-2, 3-didehydro-D-N-acetylneuraminic acid (DANA), a sialidase inhibitor, increased expression of ganglioside GQ1b/GT1a in hippocampal acute slices. Extracellular glutamate level in the rat hippocampus measured by using in vivo microdialysis was increased by the sialidase inhibitor 2, 3-dehydro 2-deoxy-N-glycolylneuraminic acid as well as DANA. Synaptic vesicle exocytosis and intracellular Ca2+ increase evoked by high-K+ were also enhanced by DANA in primary cultured hippocampal neurons. Expression of GQ1b/GT1a was rapidly decreased by depolarization with high-K+, suggesting that the increase in sialidase activity by neural excitation is sufficient for cleavage of sialic acid. Our findings indicate that sialidase down-regulates glutamate release from hippocampal neurons via Ca2+ signalling modulation. Neural activity-dependent desialylation by sialidase may be a negative-feedback factor against presynaptic activity. PMID- 29319804 TI - Effects of Agricultural Organic Dusts on Human Lung-Resident Mesenchymal Stem (Stromal) Cell Function. AB - Agricultural organic dust exposures trigger harmful airway inflammation, and workers experiencing repetitive dust exposures are at increased risk for lung disease. Mesenchymal stem/stromal cells (MSCs) regulate wound repair processes in the lung, and may contribute to either proresolution or -fibrotic lung responses. It is unknown how organic dust exposures alter lung-resident MSC activation and proinflammatory versus prorepair programs in the lung. To address this gap in knowledge, we isolated human lung-resident MSC from lung tissue. Cells were stimulated with aqueous extracts of organic dusts (DE) derived from swine confinement facilities and were assessed for changes in proliferative and migratory capacities, and production of proinflammatory and prorepair mediators. Through these investigations, we found that DE induces significant release of proinflammatory mediators TNF-alpha, IL-6, IL-8, and matrix metalloproteases, while also inducing the production of prorepair mediators amphiregulin, FGF-10, and resolvin D1. In addition, DE significantly reduced the growth and migratory capacities of lung-resident MSC. Together, these investigations indicate lung resident MSC activation and wound repair activities are altered by organic dust exposures. These findings warrant future investigations to assess how organic dusts affect lung-resident mesenchymal stem/stromal cell function and impact airway inflammation, injury, and repair during agricultural aerosol exposures. PMID- 29319805 TI - The captive brain: torture and the neuroscience of humane interrogation. AB - Despite it being abhorrent and illegal, torture is sometimes employed for information gathering. However, the extreme stressors employed during torture force the brain away from the relatively narrow, adaptive range of function it operates within. Torture degrades signal-to-noise ratios of information yield and increases false positive discovery rates. As a discovery methodology, torture fails basic tests of veridical, reliable and replicable information discovery. Torture fails during interrogation because it is an assault on our core integrated, social, psychological and neural functioning. There is a need for a profound cultural shift regarding torture, recognizing that torture impairs, rather than facilitates, investigations and truth-finding. Rising to this challenge will increase operational effectiveness, eliminate prisoner abuse and torment, and aid veridical and actionable information gathering. Policy regarding prisoner and detainee interrogation need to be refocused as a behavioural and brain sciences problem, and not simply treated as a legal, ethical or philosophical problem. Getting the science, ethics and practice in line is a challenge, but it can and should be done. PMID- 29319807 TI - Crystal structure of an aldehyde oxidase from Methylobacillus sp. KY4400. AB - Hetero-trimeric aldehyde oxidases of bacterial origin, which use O2 to catalyse the oxidation of various aldehydes but not those of aromatic N-heterocycles, belong to the xanthine oxidase family. In the present study, the crystal structure of a recombinant aldehyde oxidase from Methylobacillus sp. KY4400 (Mb AOX) was determined at 2.5 A resolution. The structures of its subunits resemble those of the corresponding subunits or domains of other structurally characterised enzymes belonging to the family, and include a [4Fe-4 S] cluster in the medium subunit like that found in Escherichia coli periplasmic aldehyde oxidoreductase (EP-AOR). A funnel leading to the si-face of the isoalloxazine ring of FAD, which is narrower than those in mouse liver AOX3 and human AOX1, is also present and it is even narrower than that in EP-AOR. The environment surrounding the ring in Mb-AOX and EP-AOR is subtly different, which might account for their different abilities to use O2. A remarkable characteristic of the Mo catalytic centre in Mb-AOX is a tryptophan situated near the centre instead of the alanine present in other xanthine oxidase family members. The tryptophan residue together with other residue differences might play an important role in binding to aldehydes such as n-heptylaldehyde in Mb-AOX. PMID- 29319808 TI - Intracellular reduction of coenzyme Q homologues with a short isoprenoid side chain induces apoptosis of HeLa cells. AB - Coenzyme Q (CoQ) is an essential factor of the mitochondrial respiratory chain. CoQ homologues with different lengths of the isoprenoid side chain are widely distributed in nature, but little is known about the relationship between the isoprenoid side chain length and biological function; therefore, we examined the effects of CoQ homologues on HeLa cells. When CoQ homologues with a shorter isoprenoid side chain than CoQ4 were added to HeLa cells, they induced cell death, and the order of cytotoxic intensity was as follows: CoQ0 ? CoQ3 ~ CoQ1 > CoQ2 ? CoQ4. Furthermore, we found that CoQ1, CoQ2 and CoQ3 could induce caspase mediated apoptosis, and the order of intensity was as follows: CoQ3 > CoQ2 >= CoQ1. We could not identify the participation of reactive oxygen species in the apoptosis induction, but observed that an NAD(P)H dehydrogenase (quinone) 1 (NQO1) inhibitor, dicumarol, could inhibit not only the intracellular reduction of the homologues but also apoptosis. However, because dicumarol did not affect well-known apoptosis inducers, such as anti-Fas IgG, tumor necrosis factor (TNF) alpha, TNF-related apoptosis-inducing ligand, UV-B and H2O2 of HeLa cells at all, we concluded that NQO1-related intracellular reduction of CoQ, or its reduced product, ubiquinol, may participate in the apoptosis induction of HeLa cells. PMID- 29319806 TI - Comparative Genomics Highlights Symbiotic Capacities and High Metabolic Flexibility of the Marine Genus Pseudovibrio. AB - Pseudovibrio is a marine bacterial genus members of which are predominantly isolated from sessile marine animals, and particularly sponges. It has been hypothesized that Pseudovibrio spp. form mutualistic relationships with their hosts. Here, we studied Pseudovibrio phylogeny and genetic adaptations that may play a role in host colonization by comparative genomics of 31 Pseudovibrio strains, including 25 sponge isolates. All genomes were highly similar in terms of encoded core metabolic pathways, albeit with substantial differences in overall gene content. Based on gene composition, Pseudovibrio spp. clustered by geographic region, indicating geographic speciation. Furthermore, the fact that isolates from the Mediterranean Sea clustered by sponge species suggested host specific adaptation or colonization. Genome analyses suggest that Pseudovibrio hongkongensis UST20140214-015BT is only distantly related to other Pseudovibrio spp., thereby challenging its status as typical Pseudovibrio member. All Pseudovibrio genomes were found to encode numerous proteins with SEL1 and tetratricopeptide repeats, which have been suggested to play a role in host colonization. For evasion of the host immune system, Pseudovibrio spp. may depend on type III, IV, and VI secretion systems that can inject effector molecules into eukaryotic cells. Furthermore, Pseudovibrio genomes carry on average seven secondary metabolite biosynthesis clusters, reinforcing the role of Pseudovibrio spp. as potential producers of novel bioactive compounds. Tropodithietic acid, bacteriocin, and terpene biosynthesis clusters were highly conserved within the genus, suggesting an essential role in survival, for example through growth inhibition of bacterial competitors. Taken together, these results support the hypothesis that Pseudovibrio spp. have mutualistic relations with sponges. PMID- 29319809 TI - Increased Microglial CSF1R Expression in the SIV/Macaque Model of HIV CNS Disease. AB - Chronic microglial activation and associated neuroinflammation are key factors in neurodegenerative diseases including HIV-associated neurocognitive disorders. Colony stimulating factor 1 receptor (CSF1R)-mediated signaling is constitutive in cells of the myeloid lineage, including microglia, promoting cell survival, proliferation, and differentiation. In amyotrophic lateral sclerosis and Alzheimers disease, CSF1R is upregulated. Inhibiting CSF1R signaling in animal models of these diseases improved disease outcomes. In our studies, CNS expression of the CSF1R ligand, colony-stimulating factor 1 (CSF1) was significantly increased in a SIV/macaque model of HIV CNS disease. Using a Nanostring nCounter immune panel, we found CSF1 overexpression was strongly correlated with upregulation of microglial genes involved in antiviral and oxidative stress responses. Using in situ hybridization, we found that CSF1R mRNA was only present in Iba-1 positive microglia. By ELISA and immunostaining with digital image analysis, SIV-infected macaques had significantly higher CSF1R levels in frontal cortex than uninfected macaques (p = 0.018 and p = 0.02, respectively). SIV-infected macaques treated with suppressive ART also had persistently elevated CSF1R similar to untreated SIV-infected macaques. Coordinate upregulation of CSF1 and CSF1R expression implicates this signaling pathway in progressive HIV CNS disease. PMID- 29319810 TI - The Second Phase of Insulin Secretion in Nondiabetic Islet-Grafted Recipients Is Altered and Can Predict Graft Outcome. AB - Context: Islet transplantation (IT) can treat patients with severely unstable type 1 diabetes. Prehepatic kinetics of insulin secretion (ISec) in two phases can be calculated by C-peptide levels during meal tests. We proposed to describe the ISec profile after a mixed-meal tolerance test (MMTT) in IT recipients and to determine whether the calculated ISec indexes can predict graft outcome. Methods: We analyzed 34 MMTT among 11 patients who underwent IT between 2011 and 2016 and compared them with healthy controls and patients with type 2 diabetes (T2D). ISec indexes and insulin sensitivity were calculated from models of Van Cauter, Breda, and Mari after MMTT. Graft success was defined by total insulin independence without any criteria for diabetes. Results: In patients with successful IT, the first- and second-phase ISec indexes were lower than those of controls (P < 0.001) and did not differ from those of the T2D group. Nevertheless, insulin sensitivity of IT recipients was similar to that of the control group and higher than that of the T2D group. The index of the second phase of ISec phiS was correlated with total infused islet equivalents (IEQs), was a good predictor of diabetes (re)occurrence, and allowed us to calculate 9500 IEQ/kg as the minimum needed to reach insulin independence. Conclusion: We showed that indexes from the first and second phases of ISec are altered in insulin-independent IT recipients. Higher sensitivity distinguishes them from patients with T2D. Even in insulin independent patients, IT remains a marginal mass model. Moreover, phiS can estimate transplanted islet mass and predict IT recipient outcomes. PMID- 29319811 TI - Identification of a consensus motif in Erg28p required for C-4 demethylation in yeast ergosterol biosynthesis based on mutation analysis. AB - The Erg28p protein is localized to the endoplasmic reticulum, where it acts as a scaffold to tether the C-4 demethylase complex involved in the sterol biosynthesis pathway of Saccharomyces cerevisiae. However, due to the challenges involved in characterizing the interactions of membrane proteins, the precise region of Erg28p that is responsible for the assembly of this enzyme complex remains unknown. To address this question, mutants with serial truncations in the C-terminus of Erg28p were constructed based on a topology prediction of its transmembrane domain. Sterol profiles demonstrated that intermediates involved in the stepwise removal of the two C-4 methyl groups from the tetracyclic sterol ring were accumulated in the ERG28Delta135-447 strain. Homologous alignment of Erg28p further identified a highly conserved 10-amino acid sequence (63LS/QARTFGT/LWT72) within the truncated region of ERG28Delta136-273. Complementation of the BY4741/erg28 strain with the ScERG28Delta175-204 plasmid resulted both in a significant growth inhibition and a reduction of ergosterol biosynthesis compared with the plasmid without the Delta175-204 truncation. Furthermore, homology modeling of the Erg28p mutant indicated that the deletion of residues 63-72 significantly disrupted the 3D structure of the four parallel helices in Erg28p. Taken together, the data indicate that the region spanning amino acids 63-72 constitutes a key consensus motif within Erg28p that is required for sterol C-4 demethylation during ergosterol biosynthesis in S. cerevisiae. PMID- 29319812 TI - Deuterostome Genomics: Lineage-Specific Protein Expansions That Enabled Chordate Muscle Evolution. AB - Fish-like larvae were foundational to the chordate body plan, given the basal placement of free-living lancelets. That body plan probably made it possible for chordate ancestors to swim by beating a tail formed of notochord and bilateral paraxial muscles. In order to investigate the molecular genetic basis of the origin and evolution of paraxial muscle, we deduced the evolutionary histories of 16 contractile protein genes from paraxial muscle, based on genomic data from all five deuterostome lineages, using a newly developed orthology identification pipeline and a species tree. As a result, we found that more than twice as many orthologs of paraxial muscle genes are present in chordates, as in nonchordate deuterostomes (ambulacrarians). Orthologs of paraxial-type actin and troponin C genes are absent in ambulacrarians and most paraxial muscle protein isoforms diversified via gene duplications that occurred in each chordate lineage. Analyses of genes with known expression sites indicated that some isoforms were reutilized in specific muscles of nonvertebrate chordates via gene duplications. As orthologs of most paraxial muscle genes were present in ambulacrarians, in addition to expression patterns of related genes and functions of the two protein isoforms, regulatory mechanisms of muscle genes should also be considered in future studies of the origin of paraxial muscle. PMID- 29319813 TI - Testing the Implementation of the Veder Contact Method: A Theatre-Based Communication method in Dementia Care. AB - Background and Objectives: There is a lack of research on implementation of person-centered care in nursing home care. The purpose of this study was to assess the implementation of the Veder contact method (VCM), a new person centered method using theatrical, poetic and musical communication for application in 24-hr care. Research Design and Methods: Caregivers (n = 136) and residents (n = 141) participated in a 1-year quasi-experimental study. Foundation Theater Veder implemented VCM on six experimental wards and rated implementation quality. Six control wards delivered care-as-usual. Before and after implementation, caregiver behavior was assessed during observations using the Veder-observation list and Quality of Caregivers' Behavior-list. Caregiver attitude was rated with the Approaches to Dementia Questionnaire. Quality of life, behavior, and mood of the residents were measured with QUALIDEM, INTERACT and FACE. Residents' care plans were examined for person-centered background information. Results: Significant improvements in caregivers' communicative behavior (i.e., the ability to apply VCM, establishing positive interactions) and some aspects of residents' behavior and quality of life (i.e., positive affect, social relations) were found on the experimental wards with a high implementation score, as compared to the experimental wards with a low implementation score, and the control wards. No significant differences were found between the groups in caregivers' attitudes, residents' care plans, or mood. Discussion and Implications: The positive changes in caregivers' behavior and residents' well being on the high implementation score wards confirm the partly successful VCM implementation. Distinguishing between wards with a high and low implementation score provided insight into factors which are crucial for successful implementation. PMID- 29319814 TI - Single- versus multiple-sample method to measure glomerular filtration rate. AB - Background: There are many different ways to measure glomerular filtration rate (GFR) using various exogenous filtration markers, each having their own strengths and limitations. However, not only the marker, but also the methodology may vary in many ways, including the use of urinary or plasma clearance, and, in the case of plasma clearance, the number of time points used to calculate the area under the concentration-time curve, ranging from only one (Jacobsson method) to eight (or more) blood samples. Methods: We collected the results obtained from 5106 plasma clearances (iohexol or 51Cr-ethylenediaminetetraacetic acid (EDTA)) using three to four time points, allowing GFR calculation using the slope-intercept method and the Brochner-Mortensen correction. For each time point, the Jacobsson formula was applied to obtain the single-sample GFR. We used Bland-Altman plots to determine the accuracy of the Jacobsson method at each time point. Results: The single-sample method showed within 10% concordances with the multiple-sample method of 66.4%, 83.6%, 91.4% and 96.0% at the time points 120, 180, 240 and >=300 min, respectively. Concordance was poorer at lower GFR levels, and this trend is in parallel with increasing age. Results were similar in males and females. Some discordance was found in the obese subjects. Conclusion: Single sample GFR is highly concordant with a multiple-sample strategy, except in the low GFR range (<30 mL/min). PMID- 29319815 TI - Chemical Analysis and Simulated Pyrolysis of Tobacco Heating System 2.2 Compared to Conventional Cigarettes. AB - Introduction: Tobacco Heating System 2.2 (THS 2.2, marketed as iQOS), is a heat not-burn (HNB) tobacco product that has been successfully introduced to global markets. Despite its expanding market, few independent and systematic researches into THS 2.2 have been carried out to date. Methods: We tested a comprehensive list of total particulate matter (TPM), water, tar, nicotine, propylene glycol, glycerin, carbon monoxide, volatile organic compounds, aromatic amines, hydrogen cyanide, ammonia, N-nitrosamines, phenol, and polycyclic aromatic hydrocarbon under both ISO and HCI regimes. We also simulated pyrolysis of THS 2.2 heating sticks and made comparisons with conventional cigarette tobacco fillers using comprehensive gas chromatography-mass spectrometry (GC * GC-MS) to determine whether the specially designed ingredients help reduce harmful constituents. Results: Other than some carbonyls, ammonia, and N-nitrosoanabasine (NAB), the delivered releases from THS 2.2 were at least 80% lower than those from 3R4F. Tar and nicotine remained almost the same as 3R4F. Interestingly, the normalized yield of THS 2.2 to 3R4F under the HCI regime was lower than under the ISO regime. Conclusions: THS 2.2 delivered fewer harmful constituents than the conventional cigarette 3R4F. Simulated pyrolysis results showed that the lower temperature instead of specially designed ingredients contributed to the distinct shift. In particular, if smoking machines are involved to evaluate the HNB products, smoking regimes of heat-not-burn tobacco products should be carefully chosen. Implications: To our knowledge, few independent studies of HNB products have been published. In this paper, a comprehensive list of chemical releases was tested systematically and compared to those from 3R4F. Although THS 2.2 generates lower levels of harmful constituents, the nicotine and tar levels were almost identical to 3R4F.The results should be discussed carefully in the future when assess the dual-use with other conventional cigarettes, nicotine dependence of HNB products, etc. This study also suggests that regulatory agencies should pay attention to the smoking regimes that are adopted to evaluate HNB tobacco products. PMID- 29319816 TI - Author Response. PMID- 29319817 TI - High-Affinity Low-Capacity and Low-Affinity High-Capacity N-Acetyl-2 Aminofluorene (AAF) Macromolecular Binding Sites Are Revealed During the Growth Cycle of Adult Rat Hepatocytes in Primary Culture. AB - Long-term cultures of primary adult rat hepatocytes were used to study the effects of N-acetyl-2-aminofluorene (AAF) on hepatocyte proliferation during the growth cycle; on the initiation of hepatocyte DNA synthesis in quiescent cultures; and, on hepatocyte DNA replication following the initiation of DNA synthesis. Scatchard analyses were used to identify the pharmacologic properties of radiolabeled AAF metabolite binding to hepatocyte macromolecules. Two classes of growth cycle-dependent AAF metabolite binding sites-a high-affinity low capacity site (designated Site I) and a low-affinity high-capacity site (designated Site II)-associated with two spatially distinct classes of macromolecular targets, were revealed. Based upon radiolabeled AAF metabolite binding to purified hepatocyte genomic DNA or to DNA, RNA, proteins, and lipids from isolated nuclei, Site IDAY 4 targets (KD[APPARENT] ~ 2-4*10-6 M and BMAX[APPARENT] ~ 6 pmol/106 cells/24 h) were consistent with genomic DNA; and with AAF metabolized by a nuclear cytochrome P450. Based upon radiolabeled AAF binding to total cellular lysates, Site IIDAY 4 targets (KD[APPARENT] ~ 1.5*10-3 M and BMAX[APPARENT] ~ 350 pmol/106 cells/24 h) were consistent with cytoplasmic proteins; and with AAF metabolized by cytoplasmic cytochrome P450s. DNA synthesis was not inhibited by concentrations of AAF that saturated DNA binding in the neighborhood of the Site I KD. Instead, hepatocyte DNA synthesis inhibition required higher concentrations of AAF approaching the Site II KD. These observations raise the possibility that carcinogenic DNA adducts derived from AAF metabolites form below concentrations of AAF that inhibit replicative and repair DNA synthesis. PMID- 29319818 TI - A Study for the Ages. PMID- 29319819 TI - Development and External Validation of Risk Scores for Cardiovascular Hospitalization and Rehospitalization in Patients With Diabetes. AB - Context: Cardiovascular disease (CVD) is a common and costly reason for hospitalization and rehospitalization among patients with type 2 diabetes. Objective: This study aimed to develop and externally validate two risk prediction models for cardiovascular hospitalization and cardiovascular rehospitalization. Design: Two independent prospective cohorts. Setting: The derivation cohort includes 4704 patients with type 2 diabetes from 18 general practices in Cambridgeshire. The validation cohort comprises 1121 patients with type 2 diabetes from post-trial follow-up data. Main Outcome Measure: Cardiovascular hospitalization over 2 years and cardiovascular rehospitalization after 90 days of the prior CVD hospitalization. Results: The absolute rate of cardiovascular hospitalization and rehospitalization was 12.5% and 6.7% in the derivation cohort and 16.3% and 7.0% in the validation cohort. Discrimination of the models was similar in both cohorts, with C statistics above 0.70 and excellent calibration of observed and predicted risks. Conclusion: Two prediction models that quantify risks of cardiovascular hospitalization and rehospitalization have been developed and externally validated. They are based on a small number of clinical measurements that are available for patients with type 2 diabetes in many developed countries in primary care settings and could serve as the tools to screen the population at high risk of cardiovascular hospitalization and rehospitalization. PMID- 29319820 TI - Embryo Implantation: War in Times of Love. AB - Contrary to widespread belief, the implantation of an embryo for the initiation of pregnancy is like a battle, in that the embryo uses a variety of coercive tactics to force its acceptance by the endometrium. We propose that embryo implantation involves a three-step process: (1) identification of a receptive endometrium; (2) superimposition of a blastocyst-derived signature onto the receptive endometrium before implantation; and finally (3) breaching by the embryo and trophoblast invasion, culminating in decidualization and placentation. We review here the story that is beginning to emerge, focusing primarily on the cells that are in "combat" during this process. PMID- 29319821 TI - Probiotic potency of Lactobacillus plantarum KX519413 and KX519414 isolated from honey bee gut. AB - The Indian honey bee Apis cerana indica, which harbors an abundant and diverse range of lactic acid bacteria (LAB) in their gut with beneficial effects, was used as the source for the isolation of LAB. In the present study, two LAB isolates from honey bee gut were selected primarily based on their phenotypic and selective biochemical characterization, followed by PCR and identified using 16S rRNA sequencing as Lactobacillus plantarum and were registered in National Centre for Biotechnology Information under accession number KX519413 and KX519414. The probiotic potency of test strains indicated their survivability at acidic pH, bile salts and viability in simulated gastric juice enabling them to withstand gastrointestinal tract conditions. Evaluation of cell surface properties suggested that they possess an important defense mechanism against the pathogen since they are hydrophobic, auto-aggregative and have co-aggregative ability. Further, efficient exopolysaccharide production by them indicates not only their ability to enrich biofilm formation and auto-aggregation, but also enhances bacterial adhesion and colonization on the host intestinal tract. The present study concluded that L. plantarum from the gut of Apis cerana indica possesses probiotic potency, and potential candidates for use as food besides application in nutraceutical and pharmaceutical industries. PMID- 29319822 TI - An Animal Model of Abacavir-Induced HLA-Mediated Liver Injury. AB - Genome-wide association studies indicate that several idiosyncratic adverse drug reactions are highly associated with specific human leukocyte antigen (HLA) alleles. For instance, abacavir, a human immunodeficiency virus reverse transcriptase inhibitor, induces multiorgan toxicity exclusively in patients carrying the HLA-B*57:01 allele. However, the underlying mechanism is unclear due to a lack of appropriate animal models. Previously, we developed HLA-B*57:01 transgenic mice and found that topical application of abacavir to the ears induced proliferation of CD8+ lymphocytes in local lymph nodes. Here, we attempted to reproduce abacavir-induced liver injury in these mice. However, oral administration of abacavir alone to HLA-B*57:01 transgenic mice did not increase levels of the liver injury marker alanine aminotransferase. Considering the importance of innate immune activation in mouse liver, we treated mice with CpG oligodeoxynucleotide, a toll-like receptor 9 agonist, plus abacavir. This resulted in a marked increase in alanine aminotransferase, pathological changes in liver, increased numbers of activated CD8+ T cells, and tissue infiltration by immune cells exclusively in HLA-B*57:01 transgenic mice. These results indicate that CpG oligodeoxynucleotide-induced inflammatory reactions and/or innate immune activation are necessary for abacavir-induced HLA-mediated liver injury characterized by infiltration of CD8+ T cells. Thus, we developed the first mouse model of HLA-mediated abacavir-induced idiosyncratic liver injury. Further investigation will show that the proposed HLA-mediated liver injury model can be applied to other combinations of drugs and HLA types, thereby improving drug development and contributing to the development of personalized medicine. PMID- 29319824 TI - ? PMID- 29319823 TI - Differentially Expressed mRNA Targets of Differentially Expressed miRNAs Predict Changes in the TP53 Axis and Carcinogenesis-Related Pathways in Human Keratinocytes Chronically Exposed to Arsenic. AB - Arsenic is a widely distributed toxic natural element. Chronic arsenic ingestion causes several cancers, especially skin cancer. Arsenic-induced cancer mechanisms are not well defined, but several studies indicate that mutation is not the driving force and that microRNA expression changes play a role. Chronic low arsenite exposure malignantly transforms immortalized human keratinocytes (HaCaT), serving as a model for arsenic-induced skin carcinogenesis. Early changes in miRNA expression in HaCaT cells chronically exposed to arsenite will reveal early steps in transformation. HaCaT cells were maintained with 0/100 nM NaAsO2 for 3 and 7 weeks. Total RNA was purified. miRNA and mRNA expression was assayed using Affymetrix microarrays. Targets of differentially expressed miRNAs were collected from TargetScan 6.2, intersected with differentially expressed mRNAs using Partek Genomic Suite software, and mapped to their pathways using MetaCore software. MDM2, HMGB1 and TP53 mRNA, and protein levels were assayed by RT-qPCR and Western blot. Numerous miRNAs and mRNAs involved in carcinogenesis pathways in other systems were differentially expressed at 3 and 7 weeks. A TP53 regulatory network including MDM2 and HMGB1 was predicted by the miRNA and mRNA networks. Total TP53 and TP53-S15-phosphorylation were induced. However, TP53 K382-hypoacetylation suggested that the induced TP53 is inactive in arsenic exposed cells. Our data provide strong evidence that early changes in miRNAs and target mRNAs may contribute to arsenic-induced carcinogenesis. PMID- 29319825 TI - ? PMID- 29319826 TI - ? PMID- 29319827 TI - ? PMID- 29319828 TI - ? PMID- 29319830 TI - ? PMID- 29319829 TI - ? PMID- 29319831 TI - ? PMID- 29319832 TI - ? PMID- 29319833 TI - ? AB - A previously healthy 21-year old man presented to the emergency department with sudden onset central chest pain exacerbated by breathing. A plain chest X-ray showed air within the mediastinum and pericardium confirmed by a CT scan with contrast. The patient history did not raise suspicion of any concomitant disease and the diagnosis of spontaneous pneumomediastinum with pneumopericardium was made. The patient recovered completely over the next few days with bed rest and analgesics. Spontaneous pneumomediastinum is an uncommon disease caused by rupture of perivascular alveoli causing air leakage to the mediastinum. The condition is benign and self-resolving in most cases. Pneumopericardium, a rare complication to spontaneous pneumomediastinum, is also usually self-resolving but may cause cardiac tamponade requiring intervention. Spontaneous pneumomediastinum must be differentiated from secondary pneumomediastinum caused by an underlying condition, such as esofageal rupture, trauma or infection, which may require specific treatment. PMID- 29319834 TI - ? AB - Each year 6,800 bariatric operations are performed in Sweden. Bariatric surgery involves both a reduced intake and a reduced absorption of vitamins and minerals. There has been debate about whose responsibility long-term follow-up is, particularly regarding monitoring vitamin and mineral status. The Swedish Society for Bariatric Surgery and the Norwegian Association for Bariatric Surgery, who oversee their respective national quality registers, have appointed an expert group to develop guidelines for postoperative supplementation and nutritional monitoring of vitamins and minerals, along with a schedule for routine follow-up. Several existing international guidelines have served as the basis for the development of this guidance. The Finnish Association for Metabolic Surgery and The Danish Association for the Study of Obesity have also decided to adopt the recommendations. The care of the patient group with severe obesity is a common responsibility of primary care and hospitals, as patients are heavily affected by obesity-related morbidity, which, even without surgery, requires major health care efforts, not least from primary care. After surgery, a large proportion of these efforts can be reduced, but focus changes. PMID- 29319835 TI - ? AB - Mason performed the first gastric bypass (GBP) for obesity in 1967 after having observed substantial weight loss in patients operated for gastric ulcer. The weight loss after GBP is 30 % and 2/3 of patients with type II diabetes can stop their medication. Half of the patients can stop medication for hypertension or hyperlipidemia, 75% are cured from reflux and obstructive sleep apnea. GBP prolongs survival especially among diabetics. Restriction and malabsorption is of minor importance for weight loss. The mechanisms underlying weight loss and diabetes remissions are endocrine. GBP enhances food passage to the distal small bowel where the food contact stimulates release of satiety hormones from endocrine cells. Elevated levels of these hormones cause weight loss, increases insulin secretion and counteracts weight induced decrease in resting metabolic rate, an important starving protection mechanism that activates when fasting and makes traditional weight loss difficult. PMID- 29319836 TI - ? AB - TB can be detected with PCR - but only in smear-positive respiratory samples Unnecessary and inappropriate clinical requests represent a great waste of time and money and may also result in false diagnoses. PCR-techniques, such as Cobas TaqMan MTB, are used for rapid detection of tuberculosis (TB). These assays are only validated for respiratory specimens, but they are commonly requested also for non-respiratory specimens. These assays perform well in smear-positive respiratory samples, while the sensitivities are quite unsatisfactory for both respiratory and non-respiratory smear-negatives samples. The specificity is high and it is possible to rapidly distinguish between TB and infections caused by environmental mycobacteria. The analyses demonstrate, furthermore, that PCR assays cannot be used to evaluate treatment, detect relapses or exclude TB. Nor can these assays be used to evaluate contagiousness or to screen for TB. PMID- 29319837 TI - Medicaid Credentialing Made Simple. AB - A new partnership by the Texas Medical Association and the Texas Association of Health Plans will soon streamline the process of getting credentialed - and recredentialed - for Medicaid health plans. PMID- 29319838 TI - Questions Abound. AB - The Texas Medical Board's new rules on inspecting clinics for failure to register as pain management clinics have provisions of potential concern for doctors. PMID- 29319839 TI - Are You Experienced? AB - A case going before the Texas Supreme Court spotlights the Medical Disclosure Panel and what physicians must disclose before performing a procedure. PMID- 29319840 TI - Does Texas Need More Medical Schools? AB - By 2020, Texas will be opening three new medical schools. Will there be enough residency positions for all the new students? PMID- 29319841 TI - Can Texas Do Death Better? AB - Filling out death certificates can be confusing for Texas physicians, and vital health information often gets left off of forms. Because of this, officials don't have accurate information on how Texans are dying. PMID- 29319842 TI - Quantitative evaluation of potential irradiation geometries for carbon-ion beam grid therapy. AB - PURPOSE: Radiotherapy using grids containing cm-wide beam elements has been carried out sporadically for more than a century. During the past two decades, preclinical research on radiotherapy with grids containing small beam elements, 25 MUm-0.7 mm wide, has been performed. Grid therapy with larger beam elements is technically easier to implement, but the normal tissue tolerance to the treatment is decreasing. In this work, a new approach in grid therapy, based on irradiations with grids containing narrow carbon-ion beam elements was evaluated dosimetrically. The aim formulated for the suggested treatment was to obtain a uniform target dose combined with well-defined grids in the irradiated normal tissue. The gain, obtained by crossfiring the carbon-ion beam grids over a simulated target volume, was quantitatively evaluated. METHODS: The dose distributions produced by narrow rectangular carbon-ion beams in a water phantom were simulated with the PHITS Monte Carlo code. The beam-element height was set to 2.0 cm in the simulations, while the widths varied from 0.5 to 10.0 mm. A spread-out Bragg peak (SOBP) was then created for each beam element in the grid, to cover the target volume with dose in the depth direction. The dose distributions produced by the beam-grid irradiations were thereafter constructed by adding the dose profiles simulated for single beam elements. The variation of the valley-to-peak dose ratio (VPDR) with depth in water was thereafter evaluated. The separation of the beam elements inside the grids were determined for different irradiation geometries with a selection criterion. RESULTS: The simulated carbon-ion beams remained narrow down to the depths of the Bragg peaks. With the formulated selection criterion, a beam-element separation which was close to the beam-element width was found optimal for grids containing 3.0-mm wide beam elements, while a separation which was considerably larger than the beam-element width was found advantageous for grids containing 0.5-mm-wide beam elements. With the single-grid irradiation setup, the VPDRs were close to 1.0 already at a distance of several cm from the target. The valley doses given to the normal tissue at 0.5 cm distance from the target volume could be limited to less than 10% of the mean target dose if a crossfiring setup with four interlaced grids was used. CONCLUSIONS: The dose distributions produced by grids containing 0.5- and 3.0-mm wide beam elements had characteristics which could be useful for grid therapy. Grids containing mm-wide carbon-ion beam elements could be advantageous due to the technical ease with which these beams can be produced and delivered, despite the reduced threshold doses observed for early and late responding normal tissue for beams of millimeter width, compared to submillimetric beams. The treatment simulations showed that nearly homogeneous dose distributions could be created inside the target volumes, combined with low valley doses in the normal tissue located close to the target volume, if the carbon-ion beam grids were crossfired in an interlaced manner with optimally selected beam-element separations. The formulated selection criterion was found useful for the quantitative evaluation of the dose distributions produced by the different irradiation setups. PMID- 29319843 TI - Prediction of Vancomycin Dose for Recommended Trough Concentrations in Pediatric Patients With Cystic Fibrosis. AB - Vancomycin is a key antibiotic used in the treatment of multiple conditions including infections associated with cystic fibrosis and methicillin-resistant Staphylococcus aureus. The present study sought to develop a model based on empirical evidence of optimal vancomycin dose as judged by clinical observations that could accelerate the achievement of desired trough level in children with cystic fibrosis. Transformations of dose and trough were used to arrive at regression models with excellent fit for dose based on weight or age for a target trough. Results of this study indicate that the 2 proposed regression models are robust to changes in age or weight, suggesting that the daily dose on a per kilogram basis is determined primarily by the desired trough level. The results show that to obtain a vancomycin trough level of 20 MUg/mL, a dose of 80 mg/kg/day is needed. This analysis should improve the efficiency of vancomycin usage by reducing the number of titration steps, resulting in improved patient outcome and experience. PMID- 29319844 TI - Gender differences in intimate-conflict initiation and escalation tendencies. AB - According to gender motivation theory, men are driven by a desire to enhance their status; whereas, women are motivated by a desire to reduce risk, and the behavioral expressions of those motivations are context-dependent. In order to test this theory in the context of intimate relationships, this study compared men's and women's escalatory tendencies in the initial development of intimate conflict. These tendencies were conceptualized in terms of four attributes: two attributes that represent response intention (decision and style) and two others that represent motivations for that intention (putting one's partner in his or her place and avoiding conflict). These attributes were measured in the context of five hypothetical situations. Each of those scenarios involved potential escalation of intimate conflict, following an intimate partner's aggressive verbal demand. The study involved a convenience sample of 403 male and female participants. The findings show that, in the initial steps of intimate-conflict development, women tend toward escalation more than men. The findings also show that the escalatory tendency, as conceptualized and measured using the examined scenarios, corresponds to actual behavior exhibited in the resolution of common issues in the couples' lives. These findings reinforce gender motivation theory. PMID- 29319845 TI - IL-37 inhibits IL-4/IL-13-induced CCL11 production and lung eosinophilia in murine allergic asthma. AB - BACKGROUND: IL-37 is emerging as an anti-inflammatory cytokine, particularly in innate inflammation. However, the role of IL-37 in Th2-mediated allergic lung inflammation remains uncertain. We sought to determine the role and the underlying mechanisms of IL-37 in the development of house dust mites (HDM) induced murine asthma model. METHODS: We examined the effect of IL-37 administration during the sensitization or challenge phase on Th2-mediated allergic asthma induced by inhaled HDM. Cellular source of CCL11 and distribution of IL-37 receptors, IL-18Ralpha and IL-1R8, were determined in HDM-exposed lungs. Finally, we examined the effect of IL-37 on CCL11 production and STAT6 activation in different primary lung structural cell types upon IL-4/IL-13 stimulation. RESULTS: IL-37 had no effect on HDM sensitization, but when administrated during the challenge phase, significantly attenuated pulmonary eosinophilia, CCL11 production, and airway hyper-reactivity (AHR). Interestingly, IL-37 treatment had no significant effects on lung infiltrating T cells and Th2 cytokine production. Intranasal co-administration of CCL11 reversed the inhibiting effect of IL-37 on HDM-induced pulmonary eosinophilia and AHR. Furthermore, we demonstrated that CCL11 was primarily expressed by fibroblasts and airway smooth muscle cells (AMSC), while IL-37 receptors by tracheobronchial epithelial cells (TEC). In vitro study showed that IL-37 inhibited IL-4/IL-13-induced STAT6 activation and CCL11 production by fibroblasts and AMSC, which was dependent on its direct action on TEC. Moreover, cell contact was required for the inhibitory effect of IL-37-treated TEC. CONCLUSIONS: IL-37 attenuates HDM-induced asthma, possibly by inhibiting IL-4/IL-13-induced CCL11 production by fibroblasts and AMSC via its direct act on TEC. PMID- 29319846 TI - Phototoxic drug reaction with the novel agent rovalpituzumab tesirine. PMID- 29319848 TI - The Management of Closed Liver Trauma Treated by Hemihepatectomy. AB - A case of closed liver trauma treated by hemihepatectomy is described, and the management of the metabolic derangements following this operation are discussed. PMID- 29319847 TI - Decision making in breast cancer risk reduction. PMID- 29319849 TI - The Use of Surgery and Local Temperature Elevation in Mycobacterium Ulcerans Infection. AB - Six cases of Mycobacterium infection are described. A critical evaluation of the various methods of treatment used is presented. The conclusions are that drugs have no place in the primary treatment of the condition, and that wide surgical excision and partial, thickness skin grafting followed by the application of heat by means of a specially constructed heat cradle are the best form of treatment. Problems associated with surgical management are discussed. PMID- 29319850 TI - The Use of Scalp Flaps Following Resection of Oral Cancer1. AB - This paper describes the use of scalp flaps to provide cover in the defects left after resections for oral cancer. Scalp flaps provide cover and forehead flaps provide lining. Combined scalp and forehead flaps have been carried on subcutaneous vascular pedicles and on carrier skin segments. These have been used even after ligation of the external carotid artery. They have also been brought down like a visor on bilateral subcutaneous vascular pedicles. PMID- 29319851 TI - The Effect of Surgery, Injury, and Prolonged Bed Rest on Calf Blood Flow. AB - Using strain gauge plethysmography, the resting calf blood flow, mainly a measure of muscle blood flow, has been estimated in control subjects, in patients during and after surgical procedures, and in patients during prolonged bed rest following surgery or operation. During general surgical procedures, the calf blood flow was reduced by 38% of the preoperative values. After operation, there was a progressive fall in calf blood flow, the lowest values showing a reduction averaging 58% of the preoperative flow. The reductions in blood flow were associated with an increase in peripheral resistance, indicating that local vasoconstriction was the cause of the reduced flow. Low calf blood flow was also shown to occur in patients who were confined to bed for long periods after injury or operation. It is suggested that by reducing venous return, the decreased calf blood flow during and after surgery, and during prolonged bed rest, may be a factor in the development of deep vein thrombosis in. surgical patients. PMID- 29319852 TI - Pseudocyst of the Pancreas. AB - A review is presented of cases of pseudocyst of the pancreas occurring over a 10 year period at the Alfred Hospital, Melbourne. There were 14 cases. The clinical presentation, surgical management and biochemical characteristics of these cysts arc described and discussed. PMID- 29319853 TI - Acute Primary Inversion of the Caecum. AB - A case of acute primary inversion of the caecum is presented. The importance of early operation is stressed. The importance of the condition in the differential diagnosis of appendicitis is mentioned. PMID- 29319855 TI - The Early History of the Formation of the Faculty of Anaesthetists: Some Recollections. PMID- 29319854 TI - Anterior Tibial Syndrome following Restoration of Arterial Flow. AB - Sudden revascularization of an ischemic limb may be followed by the onset of the anterior tibial syndrome. Five cases are reported in which this syndrome occurred following successful revascularization, four of them requiring fasciotomy. The "reopening syndrome" may on rare occasions follow revascularization, and the causes and treatment of this phenomenon are discussed. PMID- 29319856 TI - Julian Ormond Smith. PMID- 29319858 TI - Visit of the Sims Commonwealth Professor. PMID- 29319857 TI - Extramedullary Plasmacytoma of the Gastro-intestinal Tract. AB - A case of plasmacytoma affecting the terminal small bowel is described. This is a rare condition, and its importance lies in its relationship to other myelomatous pathological conditions. In the case reported it would appear that the tumour arose primarily in the small bowel and that the bone marrow remained normal. PMID- 29319859 TI - Acinic Cell Carcinoma of the Parotid Gland. AB - Acinic cell carcinoma of the parotid gland is a rare neoplasm. The first described case is ascribed to Nasse, who in 1892 reported four "adenomas" of the parotid gland, one of which presented the features of the neoplasm now reported. PMID- 29319860 TI - Non-functioning Palliative Gastro-enterostomy. AB - The cases of three patients are reported in whom palliative gastro-enterostomy failed to provide adequate drainage, although no mechanical obstruction was found on reoperation. It appeared that local propulsive failure was responsible. Details of a technique to reduce stasis at the anastomotic site are suggested, and the use of sympathetic blocking drugs is proposed in the treatment of the established case. PMID- 29319861 TI - Carcinoid Tumours of the Rectum1. AB - A personal canvass conducted in Queensland revealed but five cases of rectal carcinoid. The nature of these lesions is discussed, and an attitude towards their management is expressed. PMID- 29319862 TI - Notes on Mycobacterium Ulcerans. AB - A record is given of the events leading to the discovery, the cultivation, and the animal transmission of Mycobacterium ulcerans, the causative organism of the "Bairnsdale ulcer", together with a discussion on the possible animal hosts and vectors. It is suggested as a mailer of speculation that the insectivorous bats may be incriminated as the natural hosts, and that bed-bugs or related bugs, parasitic on bats, may be the vectors. PMID- 29319863 TI - Spontaneous Urinary Extravasation: The Problems of Diagnosis and Management. AB - Spontaneous extravasation of urine is becoming more frequently recognised. When associated with rupture of the renal pelvis it is more likely to present to a general surgeon as an "acute abdomen" than to a urological surgeon, and unless suspected early will not be diagnosed until after laparotomy has been performed. The case presented demonstrates many of the problems in the diagnosis of this condition, and the management is discussed. PMID- 29319864 TI - The History of the Royal Australasian College of Surgeons from 1935 to 1960. PMID- 29319865 TI - Massive Ascites Due to Pancreatic Stones. AB - A case of massive pancreatic ascites due to stones impacted in the head of the pancreas is described. The problems in differential diagnosis are outlined. Treatment consisting of transduodenal removal of the stones, sphincterotomy and gastrojejunostomy was followed by complete disappearance of symptoms and freedom from farther episodes of pancreatitis. PMID- 29319866 TI - Subdural Empyema. AB - Subdural empyema is a distinct clinical entity not uncommon in Ceylon. Forty seven cases have been analysed. The commonest sources of infection are otitis media and frontal sinusitis. These empyemas are often complicated by cortical thrombophlebitis, meningitis and intracerebral abscesses. The symptomatology is difficult to differentiate clinically from that of other forms of intracranial suppuration. Percutaneous carotid angiography is the investigation of choice. The treatment consists of surgical evacuation of pus combined with correct antibiotic therapy and skilled nursing. Our mortality of 25.5% was due to uncontrollable associated infections, usually the result of late referral. PMID- 29319867 TI - Aorto-Caval Fistula: Successful Management of Two Cases. AB - Two cases of aorto-caval fistula resulting from spontaneous rupture of an aortic aneurysm into the inferior vena cava are described. Although both patients showed the classical signs of a pulsatile abdominal mass with a palpable thrill and a continuous murmur, and the site of the communication was the same in both cases, only the first showed obvious signs of a massive arteriovenous fistula, with a collapsing pulse and severe oliguria promptly cured by correction of the fistula. The second patient illustrates the ability of one elderly patient to survive a series of disasters in aneurysm surgery, namely frank rupture of the aneurysm, high output renal failure, caval thrombosis and intraperitoneal suppuration. PMID- 29319868 TI - The Bairnsdale Ulcer. AB - A record is given of the first known cases of Bairnsdale ulcer and its early recognition as a clinical entity. The treatment evolved by excision and skin grafting before the final identification of the causative organism is also described. PMID- 29319869 TI - The Use of Trimethoprim-Sulphamethoxazole in the Treatment of Complicated Urinary Tract Infection. AB - Fifty patients attending the urological department of the Meath Hospital and County Dublin Infirmary, Eire, were treated with the new chemotherapeutic agent, trimethoprim-sulphamelhoxazole. Clinical and bacteriological studies were carried out at the end of the course of treatment and at follow-up four weeks later. The majority of urinary pathogens were found to be sensitive to this preparation, and the development of resistant strains was minimal. The drug was found to be effective when administered for seven days, and side-effects occurred in one patient only. PMID- 29319870 TI - The Experimental Application of Microsurgical Techniques to Internal Mammary to Coronary Artery Anastomosis. AB - Obstructive coronary artery disease is in many patients a disease of the proximal arteries. Saphenous vein bypass grafts have been satisfactorily performed into vessels of diameters of 2.5 mm and above. A certain proportion of patients exist, however, in whom the only vessels available for grafting are of diameters of less than 2 mm. The purpose of this study was to test the feasibility of performing internal mammary to coronary artery anastomosis in the dog in vessels of diameters of 1-2 mm, using the operating microscope The study indicates that it is technically possible to perform these anastomoses with an acceptable immediate patency rate. PMID- 29319871 TI - Winter blues, spring fever and major depression: Are they the same or different. PMID- 29319874 TI - Fairness and Transparency. PMID- 29319875 TI - Association Between Sensory Impairment and Dementia in Older Adults: Evidence from China. AB - OBJECTIVES: To determine the association between sensory impairment and dementia in Chinese older adults. DESIGN: Cross-sectional. SETTING: Older adults in 31 provinces of China. PARTICIPANTS: Individuals aged 65 and older (N = 250,752). MEASUREMENTS: Psychiatrists ascertained dementia based on the International Classification of Diseases, 10th Revision. Sensory impairment was measured as only hearing impairment, only vision impairment, and combined sensory impairment (combined hearing and vision impairment). Hearing impairment was defined as greater than 40 dB loss in the better ear according to the standard of the World Health Organization (WHO) Prevention of Deafness and Hearing Impairment (PDH) standard 97.3. Ophthalmologists assessed vision impairment according to the WHO best-corrected visual acuity (BCVA) criteria (low vision: 0.05<=BCVA <=0.29; blindness: no light perception <= BCVA <0.05, visual field less than 10 degrees; the better-seeing eye). RESULTS: The prevalence of dementia was 0.41% (95% CI = 0.39-0.44%) without sensory impairment, 0.83% (95% CI = 0.70-0.99%) with only visual impairment, 0.61 (95% CI = 0.53-0.71%) with only hearing impairment, and 1.27% (95% CI = 1.00-1.61%) with combined sensory impairments. After adjusting for sociodemographic characteristics, vision impairment (odds ratio (OR) = 1.58, 95% CI = 1.28-1.96) and combined sensory impairments (OR = 1.64, 95% CI = 1.23 2.20) were associated with greater risk of severe to extremely severe dementia. Hearing impairment was not significantly associated with dementia. CONCLUSION: Sensory impairments are associated with greater risk of dementia in Chinese older adults. Studies are needed to further explore the pathway of this association in Chinese elderly adults and to provide suggestions to improve health status for this population. PMID- 29319876 TI - No Expiration Date on the Association Between Physical Activity and Mortality. PMID- 29319877 TI - Editorial: With tree nut sensitization, take the current when it serves, or lose our ventures. PMID- 29319878 TI - The Benefits of Reviewing. PMID- 29319879 TI - Cardiorespiratory fitness and age-related arterial stiffness in women with systemic lupus erythematosus. AB - BACKGROUND: The aim of this study was twofold: (i) to examine the association of cardiorespiratory fitness with arterial stiffness in women with systemic lupus erythematosus; (ii) to assess the potential interaction of cardiorespiratory fitness with age on arterial stiffness in this population. MATERIALS AND METHODS: A total of 49 women with systemic lupus erythematosus (mean age 41.3 [standard deviation 13.8] years) and clinical stability during the previous 6 months were included in the study. Arterial stiffness was assessed through pulse wave velocity (Mobil-O-Graph(r) 24 hours pulse wave velocity monitor). Cardiorespiratory fitness was estimated with the Siconolfi step test and the 6 minute walk test. RESULTS: Cardiorespiratory fitness was inversely associated with pulse wave velocity in crude analyses (P < .05), although this relationship was attenuated when age and other cardiovascular risk factors were controlled. There was a cardiorespiratory fitness * age interaction effect on pulse wave velocity, regardless of the test used to estimate cardiorespiratory fitness (P < .001 for the Siconolfi step test; P = .005 for the 6-minute walk test), indicating that higher cardiorespiratory fitness was associated with a lower increase in pulse wave velocity per each year increase in age. CONCLUSIONS: The results of this study suggest that cardiorespiratory fitness might attenuate the age-related arterial stiffening in women with systemic lupus erythematosus and might thus contribute to the primary prevention of cardiovascular disease in this population. As the cross-sectional design precludes establishing causal relationships, future clinical trials should confirm or contrast these findings. PMID- 29319880 TI - Competing Risks of Fracture and Death in Older Adults with Chronic Kidney Disease. AB - OBJECTIVES: To examine whether chronic kidney disease (CKD) at any stage is associated with fracture risk after adjusting for competing mortality and to determine whether age or race modify the relationship between CKD and fracture risk. DESIGN: Prospective cohort study. SETTING: Department of Veterans Affairs (VA) national healthcare system. PARTICIPANTS: Men receiving VA primary care aged 65 and older with no history of fracture or osteoporosis therapy (N = 712, 918). MEASUREMENTS: We determined CKD stage from baseline estimated glomerular filtration rate (eGFR). Participants were followed for up to 10 years for occurrence of any fracture or death. We ascertained fractures and covariates from VA medical records and Medicare claims. RESULTS: Of the 356,459 older veterans with CKD (defined as eGFR <60 mL/min per 1.73 m2 ), 15.7% (n = 56,032) experienced a fracture, and 43.0% (n = 153,438) died over a median time at risk of 5.2 years. Veterans with CKD Stages 3 to 5 had a greater risk of death than those without CKD, which biased estimates from traditional survival models. Competing risk models showed that Stage 3 CKD was associated with greater hazard (adjusted subdistribution hazard ratio (sdHR) = 1.07, 95% confidence interval (CI) = 1.02-1.11) of fracture (than those without CKD) and a trend toward greater hazard for Stage 4 (sdHR = 1.07, 95% CI = 0.94-1.22) and Stage 5 (sdHR = 1.31, 95% CI = 0.97-1.77) CKD. Age, race, and bone mineral density did not modify the relationship between CKD and fracture risk. CONCLUSIONS: In older male veterans, CKD, including Stage 3, is associated with a moderately greater fracture risk irrespective of age, race, or bone mineral density. PMID- 29319881 TI - Systemic IL-2/anti-IL-2Ab complex combined with sublingual immunotherapy suppresses experimental food allergy in mice through induction of mucosal regulatory T cells. AB - BACKGROUND: Therapeutic tolerance restoration has been proven to modify food allergy in patients and animal models and although sublingual immunotherapy (SLIT) has showed promise, combined therapy may be necessary to achieve a strong and long-term tolerance. AIMS: In this work, we combined SLIT with systemic administration of IL-2 associated with an anti-IL-2 monoclonal antibody (IL 2/anti-IL-2Ab complex or IL-2C) to reverse the IgE-mediated experimental allergy. MATERIALS AND METHODS: Balb/c mice were sensitized with cholera toxin and milk proteins and orally challenged with allergen to elicit hypersensitivity reactions. Then, allergic mice were treated with a sublingual administration of very low amounts of milk proteins combined with intraperitoneal injection of low doses of IL-2C. The animals were next re-exposed to allergens and mucosal as well as systemic immunological parameters were assessed in vivo and in vitro. RESULTS: The treatment reduced serum specific IgE, IL-5 secretion by spleen cells and increased IL-10 and TGF-beta in the lamina propria of buccal and duodenal mucosa. We found an augmented frequency of IL-10-secreting CD4+ CD25+ Foxp3+ regulatory T cells (Treg) in the submaxilar lymph nodes and buccal lamina propria. Tregs were sorted, characterized and adoptively transferred to naive mice, which were subsequently sensitized. No allergy was experienced in these mice and we encouragingly discovered a faster and more efficient tolerance induction with the combined therapy compared with SLIT. CONCLUSION: The combination of two therapeutic strategies rendered Treg-mediated tolerance more efficient compared to individual treatments and reversed the established IgE-mediated food allergy. This approach highlights the ability of IL-2C to expand Tregs, and it may represent a promising disease-modifying therapy for managing food allergy. PMID- 29319882 TI - Oral myeloid cells uptake allergoids coupled to mannan driving Th1/Treg responses upon sublingual delivery in mice. AB - BACKGROUND: Polymerized allergoids coupled to nonoxidized mannan (PM-allergoids) may represent novel vaccines targeting dendritic cells (DCs). PM-allergoids are better captured by DCs than native allergens and favor Th1/Treg cell responses upon subcutaneous injection. Herein we have studied in mice the in vivo immunogenicity of PM-allergoids administered sublingually in comparison with native allergens. METHODS: Three immunization protocols (4-8 weeks long) were used in Balb/c mice. Serum antibody levels were tested by ELISA. Cell responses (proliferation, cytokines, and Tregs) were assayed by flow cytometry in spleen and lymph nodes (LNs). Allergen uptake was measured by flow cytometry in myeloid sublingual cells. RESULTS: A quick antibody response and higher IgG2a/IgE ratio were observed with PM-allergoids. Moreover, stronger specific proliferative responses were seen in both submandibular LNs and spleen cells assayed in vitro. This was accompanied by a higher IFNgamma/IL-4 ratio with a quick IL-10 production by submandibular LN cells. An increase in CD4+ CD25high FOXP3+ Treg cells was detected in LNs and spleen of mice treated with PM-allergoids. These allergoids were better captured than native allergens by antigen-presenting (CD45+ MHC-II+ ) cells obtained from the sublingual mucosa, including DCs (CD11b+ ) and macrophages (CD64+ ). Importantly, all the differential effects induced by PM-allergoids were abolished when using oxidized instead of nonoxidized PM allergoids. CONCLUSION: Our results demonstrate for the first time that PM allergoids administered through the sublingual route promote the generation of Th1 and FOXP3+ Treg cells in a greater extent than native allergens by mechanisms that might well involve their better uptake by oral antigen-presenting cells. PMID- 29319883 TI - Trait-specific processes of convergence and conservatism shape ecomorphological evolution in ground-dwelling squirrels. AB - Our understanding of mechanisms operating over deep timescales to shape phenotypic diversity often hinges on linking variation in one or few trait(s) to specific evolutionary processes. When distinct processes are capable of similar phenotypic signatures, however, identifying these drivers is difficult. We explored ecomorphological evolution across a radiation of ground-dwelling squirrels whose history includes convergence and constraint, two processes that can yield similar signatures of standing phenotypic diversity. Using four ecologically relevant trait datasets (body size, cranial, mandibular, and molariform tooth shape), we compared and contrasted variation, covariation, and disparity patterns in a new phylogenetic framework. Strong correlations existed between body size and two skull traits (allometry) and among skull traits themselves (integration). Inferred evolutionary modes were also concordant across traits (Ornstein-Uhlenbeck with two adaptive regimes). However, despite these broad similarities, we found divergent dynamics on the macroevolutionary landscape, with phenotypic disparity being differentially shaped by convergence and conservatism. Such among-trait heterogeneity in process (but not always pattern) reiterates the mosaic nature of morphological evolution, and suggests ground squirrel evolution is poorly captured by single process descriptors. Our results also highlight how use of single traits can bias macroevolutionary inference, affirming the importance of broader trait-bases in understanding phenotypic evolutionary dynamics. PMID- 29319884 TI - Similar localization of conformational IgE epitopes on the house dust mite allergens Der p 5 and Der p 21 despite limited IgE cross-reactivity. AB - BACKGROUND: Due to high IgE recognition frequency and high allergenic activity, Der p 5 and Der p 21 are clinically important house dust mite (HDM) allergens. The objective of this study was to characterize the immunodominant IgE epitopes of Der p 5 and Der p 21 responsible for their high allergenic activity. METHODS: A panel of 12 overlapping peptides spanning the Der p 5 and Der p 21 sequence were synthesized to search for sequential IgE epitopes by direct testing for allergic patients' IgE reactivity. Peptide-specific antibodies raised in rabbits were used in inhibition studies for localizing conformational IgE epitopes which were visualized on the surfaces of the allergen structures by molecular modelling. IgE cross-reactivity between the allergens was investigated by IgE inhibition studies. RESULTS: Immunodominant IgE epitopes defined by allergic patients' IgE on Der p 5 and Der p 21 were primarily of the conformational, discontinuous type including N- and C-terminal portions of the protein. They could be located on each allergen on one area with similar localization, but despite similar structure of the allergens, no relevant IgE cross-reactivity could be detected. CONCLUSION: Our study shows that Der p 5 and Der p 21 contain a major conformational IgE epitope-containing area located on similar portions of their structure, but they lack relevant IgE cross-reactivity. These data are important for the development of modern allergy vaccines based on defined molecules for allergen-specific immunotherapy of HDM allergy. PMID- 29319886 TI - EAACI guidelines on allergen immunotherapy-Out with the old and in with the new. PMID- 29319885 TI - Patient selection in major upper abdominal surgery for cancer in octogenarians. PMID- 29319887 TI - Depressed mood is associated with loss of productivity in allergic rhinitis. AB - Allergic rhinitis (AR) is associated with significant decreases in quality of life and productivity losses. We hypothesized that symptoms of AR may differentially associate with lost productivity due to AR. We performed a cross sectional cohort study of 105 prospectively recruited patients with persistent AR. AR control, severity of depressed mood, and sinonasal symptoms were assessed with the Rhinitis Control Assessment Test (RCAT), Patient Health Questionnaire (PHQ-2), and the 22-item Sinonasal Outcome Test (SNOT-22), respectively. Lost productivity was assessed by asking the number of days of work/school missed due to AR in the last 3 months. Patients missed a mean of 1.5 days (SD:2.9) of work or school. Lost productivity was associated with PHQ-2 (adjusted linear regression coefficient [beta] = .68, 95% CI: 0.20-1.15, P = .007) analysis but not SNOT-22 or RCAT scores. Productivity losses due to AR are associated with severity of depressed mood rather than classic nasal or extra-nasal symptoms of AR. PMID- 29319888 TI - Formation of Cyanamide-Glyoxal Oligomers in Aqueous Environments Relevant to Primeval and Astrochemical Scenarios: A Spectroscopic and Theoretical Study. AB - The condensation of cyanamide and glyoxal, two well-known prebiotic monomers, in an aqueous phase has been investigated in great detail, demonstrating the formation of oligomeric species of varied structure, though consistent with generalizable patterns. This chemistry involving structurally simple substances also illustrates the possibility of building molecular complexity under prebiotically plausible conditions, not only on Earth, but also in extraterrestrial scenarios. We show that cyanamide-glyoxal reactions in water lead to mixtures comprising both acyclic and cyclic fragments, largely based on fused five- and six-membered rings, which can be predicted by computation. Remarkably, such a mixture could be identified using high-resolution electrospray ionization (ESI) mass spectrometry and spectroscopic methods. A few mechanistic pathways can be postulated, most involving the intermediacy of glyoxal cyanoimine and further chain growth, thus increasing the diversity of the observed products. This rationale is supported by theoretical analyses with clear-cut identification of all of the stationary points and transition-state structures. The properties and structural differences of oligomers obtained under thermodynamic conditions in water as opposed to those isolated by precipitation from organic media are also discussed. PMID- 29319889 TI - Epitope-Targeted Macrocyclic Peptide Ligand with Picomolar Cooperative Binding to Interleukin-17F. AB - The IL-17 cytokine family is associated with multiple immune and autoimmune diseases and comprises important diagnostic and therapeutic targets. This work reports the development of epitope-targeted ligands designed for differential detection of human IL-17F and its closest homologue IL-17A. Non-overlapping and unique epitopes on IL-17F and IL-17A were identified by comparative sequence analysis of the two proteins. Synthetic variants of these epitopes were utilized as targets for in situ click screens against a comprehensive library of synthetic peptide macrocycles with 5-mer variable regions. Single generation screens yielded selective binders for IL-17F and IL-17A with low cross-reactivity. Macrocyclic peptide binders against two distinct IL-17F epitopes were coupled using variable length chemical linkers to explore the physical chemistry of cooperative binding. The optimized linker length yielded a picomolar affinity binder, while retaining high selectivity. The presented method provides a rational approach towards targeting discontinuous epitopes, similar to what is naturally achieved by many B cell receptors. PMID- 29319890 TI - Two novel unstable hemoglobin variants due to in-frame deletions of key amino acids in the beta-globin chain. AB - Hemoglobinopathies are the most common autosomal recessive disorders and are mostly inherited in a recessive manner. However, certain mutations can affect the globin chain stability, leading to dominant forms of thalassemia. The aim of this work was the molecular and structural characterization of two heterozygous in frame deletions, leading to beta-globin variants in pediatric patients in Argentina. The HBB gene of the probands and their parents was sequenced, and other markers of globin chain imbalance were analyzed. Several structural analyses were performed, and the effect of the mutations on the globin chain stability was analyzed. In Hb JC-Paz, HBB:c.29_37delCTGCCGTTA (p.Ala10_Thr12del), detected in an Argentinean boy, one alpha-helix turn is expected to be lost. In Hb Tavapy, HBB:c.182_187delTGAAGG (p.Val60_Lys61del), the deleted residues are close to distal histidine (His63) in the heme pocket. Both mutations are predicted to have a destabilizing effect. The development of computational structural models and bioinformatics algorithms is expected to become a useful tool to understand the impact of the mutations leading to dominant thalassemia. PMID- 29319891 TI - Teicoplanin anaphylaxis associated with surgical prophylaxis. AB - AIMS: The aim of this paper is to determine the rate of true anaphylaxis to teicoplanin. METHODS: A case-series including all suspected anaphylactic reactions attributed to teicoplanin anaphylaxis within a single institution over a 29-month period were categorised according to the probability of true IgE mediated anaphylaxis using previously published criteria. The number of patients who received teicoplanin was determined and used to calculate the rate of IgE mediated anaphylaxis. RESULTS: Approximately 18 800-19 600 patients received teicoplanin during the study period, during which there were 14 cases of suspected anaphylaxis attributed to the administration of teicoplanin: five were categorised as definite IgE-mediated anaphylaxis, four as probable, two as uncertain and three were excluded. Of the excluded cases, two were found to have positive intradermal skin testing to alternative agents (rocuronium and chlorhexidine), and one did not meet the published clinical criteria. We therefore calculated the rate of IgE-mediated anaphylaxis to be between 0.046% and 0.059% (equating to between 1:2088 and 1:1655). CONCLUSIONS: This is the first study to calculate a rate of IgE-mediated anaphylaxis to teicoplanin in clinical practice. Our case series suggests that these life-threatening reactions occur less commonly than reported by the manufacturers. Mast cell tryptase is unreliable when used to predict the likelihood of IgE-mediated anaphylaxis to teicoplanin. PMID- 29319892 TI - Role of cytochrome P450 2B sequence variation and gene copy number in facilitating dietary specialization in mammalian herbivores. AB - Theory postulates that dietary specialization in mammalian herbivores is enabled by a specialized set of liver enzymes that process the high concentrations of similar plant secondary metabolites (PSMs) in the diets of specialists. To investigate whether qualitative and quantitative differences in detoxification mechanisms distinguish dietary specialists from generalists, we compared the sequence diversity and gene copy number of detoxification enzymes in two woodrat species: a generalist, the white-throated woodrat (Neotoma albigula) and a juniper specialist, Stephens' woodrat (N. stephensi). We focused on enzymes in the cytochrome P450 subfamily 2B (CYP2B), because previous research suggests this subfamily plays a key role in the processing of PSMs. For both woodrat species, we obtained and sequenced CYP2B cDNA, generated CYP2B phylogenies, estimated CYP2B gene copy number and created a homology model of the active site. We found that the specialist possessed on average ~5 more CYP2B gene copies than the generalist, but the specialist's CYP2B sequences were less diverse. Phylogenetic analysis of putative CYP2B homologs resolved woodrat species as reciprocally monophyletic and suggested evolutionary convergence of distinct homologs on similar key amino acid residues in both species. Homology modelling of the CYP2B enzyme suggests that interspecific differences in substrate preference and function likely result from amino acid differences in the enzyme active site. The characteristics of CYP2B in the specialist, that is greater gene copy number coupled with less sequence variation, are consistent with specialization to a narrow range of dietary toxins. PMID- 29319893 TI - Possible role of CYP2B6 genetic polymorphisms in ifosfamide-induced encephalopathy: report of three cases. AB - Ifosfamide (IFA) is a potent alkylating antitumoral agent, but its use is limited by neurological side effects. IFA is a racemic mixture of two enantiomeric forms, R-IFA and S-IFA with a stereoselective metabolism by CYP3A4 and CYP2B6, leading either to bioactive or to toxic pathways. In three consecutive cases of pediatric patients who exhibited IFA-induced encephalopathy (IIE), genotyping of clinically relevant single-nucleotide polymorphisms associated with decreased CYP3A4 and CYP2B6 activities was performed. Genetic investigations revealed the presence of CYP2B6 rs4803419 (C>T) in one patient while the two others carried the CYP2B6*6 allelic variant. All patients carried CYP3A4 wild-type genotype (CYP3A4*1/*1). Because CYP2B6-deficient alleles may be responsible for an increased conversion of S-IFA into neurotoxic metabolites, screening for CYP2B6 polymorphisms may help to avoid IIE and improve clinical outcomes. PMID- 29319894 TI - Antibiotic prescribing for endodontic therapies: a comparative survey between general dental practitioners and final year Bachelor of Dental Surgery students in Cardiff, UK. AB - AIM: To evaluate the views of final year dental surgery students (BDS; G1) at Cardiff University and general dental practitioners (GDPs; G2) within the geographic area of Cardiff, Wales, on antibiotic prescribing for endodontic conditions, and investigate the potential differences between the two groups. METHODS: A cross-sectional online questionnaire-based survey of 12 qualitative and quantitative questions was distributed to 76 final year BDS Cardiff University students and 55 dental practices within Cardiff, UK. Six questions recorded general information, and the remaining questions included a series of hypothetical clinical scenarios, where the participants were asked to state whether they would or would not prescribe antibiotics. The data were analysed using spss version 23 to produce descriptive statistics, contingency tables and to run chi-square (chi2) tests, Fisher's exact tests and relative risk calculations. RESULTS: The response rate was 60% (n = 79). All G1 participants were aware of the consequences of antibiotic overuse. Approximately 60% of responders were aware of guidelines for antibiotic use in endodontic therapies, and 83% would only use antibiotics for a limited selection of patients (e.g. patients with systemic complications). G1 responses to clinical scenarios indicated overall that they were comparable to the ideal answers except for acute apical abscess (64% believed that antibiotics were indicated). The majority of G2 were aware of the consequences of antibiotic overuse. Only 28% of G2 were aware of guidelines for antibiotic use in endodontic therapies. Overall responses revealed that antibiotics would be prescribed for: systemic complications (78%), acute apical abscess (72%) and symptomatic apical periodontitis (28%). The clinical scenarios revealed G1 were more likely to prescribe antibiotics compared to G2 for cases of necrotic pulp with symptomatic apical periodontitis without systemic complications (incorrect answer) and less likely to other clinical scenarios such as necrotic pulp and asymptomatic apical periodontitis for patients with a history of rheumatic fever (ideal answers), symptomatic irreversible/reversible pulpitis, failure to achieve anaesthesia, chronic apical abscess for patients with diabetes. The recognition of antibiotic prescription for cases with signs of spreading infection was more evident in G2. CONCLUSION: Final year undergraduate students were aware of the antibiotic resistance crisis, although a third was not aware of guidelines for use of antibiotics in endodontic conditions; their responses to clinical scenario were generally compatible with the guidelines. General dentists were less aware of the implications of overuse of antibiotics and the existence of guidelines, and their responses were occasionally incompatible with antibiotic guidelines for endodontic therapies. PMID- 29319895 TI - The onset of fretting at the head-stem connection in hip arthroplasty is affected by head material and trunnion design under simulated corrosion conditions. AB - Mechanically assisted crevice corrosion (MACC) is a mechanism for trunnion damage in total hip arthroplasties (THAs). Retrieval studies have shown reduced MACC related damage for ceramic heads compared with cobalt-chromium (CoCr) heads. We propose that ceramic heads demonstrate fretting at higher cyclic compressive loads than CoCr heads on titanium alloy trunnions in a simulated corrosion model. A closed electrochemical chamber was used to measure fretting current onset loads for two modern titanium alloy trunnions (Zimmer 12/14 and Stryker V-40) in which trunnion failure has been reported. Ceramic and CoCr alloy 36 + 0 mm heads were impacted on each trunnion and cyclically loaded at 3 Hz with increasing magnitude from 100 to 3,400 N for 540 cycles. Onset load was the cyclic compressive load at which the slope of the average fretting current increased significantly. A CoCr head with V40 trunnion demonstrated the lowest onset load (1,400 N), while the V40 trunnion with a ceramic head showed the highest onset load (2,200 N). Significant differences occurred in average fretting current between head materials for V40 trunnions (p < 0.001) at loads over 2,000 N. CoCr-12/14 and ceramic-12/14 couples demonstrated similar onset loads (2,000 N). All head trunnion combinations showed cyclical fretting response to loading at 100 N. Head material composition was observed to increase fretting at the taper junction but the effect was taper geometry dependent. Using ceramic heads may reduce the phenomena of trunnion fretting and corrosion but the effect of both trunnion geometry and metallurgy warrants further investigation. Statement of clinical significance: Trunnion corrosion may occur with titanium alloy stems regardless of the head material used. (c) 2017 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1630-1636, 2018. PMID- 29319896 TI - Skin inflammation exacerbates food allergy symptoms in epicutaneously sensitized mice. AB - BACKGROUND: Cutaneous exposure to food antigen through impaired skin barrier has been shown to induce epicutaneous sensitization, thereby causing IgE-mediated food allergies. OBJECTIVE: We examined whether skin barrier impairment following epicutaneous sensitization exacerbates food allergies. METHODS: BALB/c mice were epicutaneously sensitized by repeated application of ovalbumin (OVA) to MC903 pretreated ear skin for 48 hours weekly and then intragastrically challenged with OVA. After the first oral challenge, the skin barrier was disrupted with topical application of MC903 or by tape-stripping. Mice were monitored for changes in body temperature and the occurrence of diarrhea after undergoing the second oral challenge. Serum levels of mouse mast cell protease-1 (mmcp1) and OVA-specific IgE, IgG1, IgG2a antibodies and OVA-specific IgA levels in intestinal lavage fluid were measured by ELISA. Tissue accumulation of eosinophils was determined histologically. RESULTS: Epicutaneously sensitized mice developed anaphylaxis after intragastric challenge, as evidenced by diarrhea, decreased body temperature, and increased serum mmcp1 levels. Skin barrier disruption by MC903 treatment or tape-stripping exacerbated allergic reactions induced by oral challenge. MC903 treatment increased serum baseline and postchallenge mmcp1 levels. Topical pretreatment with dexamethasone alleviated allergic reactions that were exacerbated by MC903 treatment. CONCLUSION: Even after eliminating exposure to the antigen, inflammation from skin barrier disruption can exacerbate the severity of food allergy symptoms. Serum baseline mmcp1 levels might be an effective marker for predicting the severity of antigen-induced allergic symptoms. PMID- 29319897 TI - Application of a physiologically-based pharmacokinetic model for the prediction of bumetanide plasma and brain concentrations in the neonate. AB - Bumetanide is a loop diuretic that is proposed to possess a beneficial effect on disorders of the central nervous system, including neonatal seizures. Therefore, prediction of unbound bumetanide concentrations in the brain is relevant from a pharmacological prospective. A physiologically-based pharmacokinetic (PBPK) model was developed for the prediction of bumetanide disposition in plasma and brain in adult and paediatric populations. A compound file was built for bumetanide integrating physicochemical data and in vitro data. Bumetanide concentration profiles were simulated in both plasma and brain using the Simcyp PBPK model. Simulations of plasma bumetanide concentrations were compared against plasma levels published in the literature. The model performance was verified with data from adult studies before predictions in the paediatric population were undertaken. The adult and paediatric intravenous models predicted pharmacokinetic factors, namely area under the concentration-time curve, maximum concentration in plasma and time to maximum plasma concentration, within two-fold of observed values. However, predictions of plasma concentrations within the neonatal intravenous model did not produce a good fit with the observed values. The PBPK approach used in this study produced reasonable predictions of plasma concentrations of bumetanide, except in the critically ill neonatal population. This PBPK model requires more information regarding metabolic intrinsic clearance and transport parameters prior to further validation of drug disposition predictions in the neonatal population. Given the lack of information surrounding certain parameters in this special population, the model is not appropriately robust to support the recommendation of a suitable dose of bumetanide for use as an adjunct antiepileptic in neonates. PMID- 29319898 TI - What Is Your Diagnosis? Eyelid mass in a dog. PMID- 29319899 TI - Usefulness of asthma predictive index in ascertaining asthma status of children using medical records: An explorative study. AB - BACKGROUND: Frequent wheezing in original asthma predictive index (API) was defined by parental report of recurrent wheezing within 1 year during the first 3 years of life. The nature of frequent wheezing in children, particularly aged over 3 years, has not been studied. We aimed to assess the frequency and interval of wheezing to define frequent wheezing in ascertaining asthma for children using medical records. METHODS: Among children who participated in a previous study (n = 427), all wheezing episodes documented in medical records were collected for children who had >=2 wheezing episodes PLUS met one major criterion or two minor criteria of API. We compared the distribution of known risk factors for asthma between subjects having two consecutive wheezing episodes with shorter interval (<=1 year) compared to those with longer interval (1 to 3 years). RESULTS: A total of 62 children met API at median age of 2.3 years. During follow-up period (median age: 11.3 years), a total of 198 wheezing episodes were observed. 81% of wheezing intervals were within 3 years from the earlier wheezing episode, including 60% within 1 year. Children who met API based on 1-year interval (n = 40) vs 1- to 3-year interval (n = 13) appeared to be similar in regard to the known risk factors for asthma. CONCLUSIONS: Our exploratory study finding suggests that children who had frequent wheezing episodes with longer interval (<3 years) need to be considered to be determined as asthma cases when API is applied to retrospective medical records. Prospective studies with a larger sample size need to replicate this finding. PMID- 29319900 TI - Layperson's knowledge and perceptions of irritable bowel syndrome as potential barriers to care. AB - AIMS: The aim of this study was to describe the layperson's knowledge and perceptions regarding the aetiology, pathogenesis, prevalence, medical evaluation, diagnosis and treatment of irritable bowel syndrome. BACKGROUND: Diagnosis acceptance and adherence to treatment is influenced by the views of the patient's social networks. Little is known how these networks influence those with irritable bowel syndrome. DESIGN: Cross-sectional study of two-hundred four laypersons, ages 18-80 years without an irritable bowel syndrome diagnosis. METHODS: Data were collected May 2016-March 2017. Laypersons without a diagnosis of IBS self-reported their knowledge and perceptions about IBS. RESULTS/FINDINGS: Participants were able to identify many symptoms associated with irritable bowel syndrome however held misconceptions regarding the development of irritable bowel syndrome as noted by the endorsement of genetics, environment and diet or alcohol/smoking behaviours as specific causes. Further misconceptions held included the belief that irritable bowel syndrome was associated with an increased risk for the development of colon cancer and inflammatory bowel disease. Contrary to current guidelines, many thought a gastroenterologist was the only person appropriate to diagnose irritable bowel syndrome and objective testing, such as colonoscopy, was necessary to establish a diagnosis. CONCLUSION: Laypersons have an understanding of the symptoms associated with IBS; however, hold numerous misconceptions regarding the aetiology, role of the healthcare provider, necessary testing and risks associated with irritable bowel syndrome. These misconceptions are inconsistent with current guidelines and practices. Establishing partnerships and educating social networks in addition to patients may enhance outcomes for those with IBS. PMID- 29319901 TI - Gomisin A modulates aging progress via mitochondrial biogenesis in human diploid fibroblast cells. AB - Gomisin A from the fruit of Schisandra chinensis has many pharmacological properties, including hepato-protective, anti-diabetic, and anti-oxidative stress. However, the potential benefit of gomisin A is still not well understood, especially in aging progression. Therefore, the aim of this study was to clarify whether the promotion of mitochondrial biogenesis and autophagy of gomisin A affects anti-aging progression, and its mechanism. Intermediate (PD32) human diploid fibroblast (HDF) cells were brought to stress-induced premature senescence (SIPS) using hydrogen peroxide. Gomisin A inhibited reactive oxygen species production even in the SIPS-HDF cells. Gomisin A was also able to attenuate the activity of senescence-associated beta-galactosidase and the production of pro-inflammatory molecules in the SIPS as well as aged HDF cells. The antioxidant activity of gomisin A was determined by recovering the Cu/Zn, Mn SOD, and HO-1 expression in the SIPS-HDF cells. In mechanistic aspect, gomisin A inhibited the mitogen-activated protein kinase pathway and the translocation of nuclear factor kappa B to the nucleus. In addition, gomisin A promoted the autophagy and mitochondrial biogenesis factors through the translocation of nuclear factor erythroid 2-related factor-2, and inhibited aging progression in the SIPS-HDF cells. In summary, the enhanced properties of mitochondrial biogenesis and autophagy of gomisin A has a benefit to control age-related molecules against SIPS-induced chronic oxidative stress, and gomisin A may be a potential therapeutic compound for the enhancement of intracellular homeostasis to aging progression. PMID- 29319902 TI - What is your diagnosis? Transtracheal wash from a donkey. PMID- 29319903 TI - SnS2 /Sb2 S3 Heterostructures Anchored on Reduced Graphene Oxide Nanosheets with Superior Rate Capability for Sodium-Ion Batteries. AB - Tin disulfide, as a promising high-capacity anode material for sodium-ion batteries, exhibits high theoretical capacity but poor practical electrochemical properties due to its low electrical conductivity. Constructing heterostructures has been considered to be an effective approach to enhance charge transfer and ion-diffusion kinetics. In this work, composites of SnS2 /Sb2 S3 heterostructures with reduced graphene oxide nanosheets were synthesized by a facile one-pot hydrothermal method. When applied as anode material in sodium-ion batteries, the composite showed a high reversible capacity of 642 mA h g-1 at a current density of 0.2 A g-1 and good cyclic stability without capacity loss in 100 cycles. In particular, SnS2 /Sb2 S3 heterostructures exhibited outstanding rate performance with capacities of 593 and 567 mA h g-1 at high current densities of 2 and 4 A g 1 , respectively, which could be ascribed to the dramatically improved Na+ diffusion kinetics and electrical conductivity. PMID- 29319904 TI - Preparation of beta-cyclodextrin-gold nanoparticles modified open tubular column for capillary electrochromatographic separation of chiral drugs. AB - In this paper, beta-cyclodextrin (beta-CD) modified gold nanoparticles (AuNPs) coated open tubular column (OT column) was prepared for capillary electrochromatography. The open tubular column was constructed through self assembly of gold nanoparticles on 3-mercaptopropyl-trimethoxysilane (MPTMS) prederivatized capillary and subsequent modification of thiols beta-cyclodextrin (SH-beta-CD). Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and ultraviolet visible spectroscopy were carried out to characterize the prepared open tubular column and synthesized gold nanoparticles. By comparing different coating times of gold nanoparticles and thiols beta cyclodextrin, we got the optimal conditions for preparing the open tubular column. Also, the separation parameters were optimized including buffer pH, buffer concentration and applied voltage. Separation effectiveness of open tubular column was verified by the separation of four pairs of drug enantiomers including bifonazole, fexofenadine, omeprazole and lansoprazole, and satisfactory separation results were achieved for these analytes studied. In addition, the column showed good stability and repeatability. The relative standard deviation values less than 5% were obtained through intra-day, inter-day, and column-to column investigations. PMID- 29319905 TI - Claims about abortion and clinical implications lack evidence. PMID- 29319906 TI - Consequences of multiple mating-system shifts for population and range-wide genetic structure in a coastal dune plant. AB - Evolutionary transitions from outcrossing to selfing can strongly affect the genetic diversity and structure of species at multiple spatial scales. We investigated the genetic consequences of mating-system shifts in the North American, Pacific coast dune endemic plant Camissoniopsis cheiranthifolia (Onagraceae) by assaying variation at 13 nuclear (n) and six chloroplast (cp) microsatellite (SSR) loci for 38 populations across the species range. As predicted from the expected reduction in effective population size (Ne ) caused by selfing, small-flowered, predominantly selfing (SF) populations had much lower nSSR diversity (but not cpSSR) than large-flowered, predominantly outcrossing (LF) populations. The reduction in nSSR diversity was greater than expected from the effects of selfing on Ne alone, but could not be accounted for by indirect effects of selfing on population density. Although selfing should reduce gene flow, SF populations were not more genetically differentiated than LF populations. We detected five clusters of nSSR genotypes and three groups of cpSSR haplotypes across the species range consisting of parapatric groups of populations that usually (but not always) differed in mating system, suggesting that selfing may often initiate ecogeographic isolation. However, lineage-wide genetic variation was not lower for selfing clusters, failing to support the hypothesis that selection for reproductive assurance spurred the evolution of selfing in this species. Within three populations where LF and SF plants coexist, we detected genetic differentiation among diverged floral phenotypes suggesting that reproductive isolation (probably postzygotic) may help maintain the striking mating-system differentiation observed across the range of this species. PMID- 29319907 TI - Aberrant accumulation of ErbB4 in progressive supranuclear palsy. AB - AIMS: The human epidermal growth factor receptor family consists of four members that belong to the ErbB lineage of proteins (ErbB1-4). Neuregulin-1 (NRG1)/ErbB signalling regulates brain development and function. Abnormalities in this signalling have been implicated in the aetiology or development of neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and amyotrophic lateral sclerosis. So, we aimed at investigating whether the expression of NRG1 or ErbB proteins are altered in progressive supranuclear palsy (PSP). METHODS: The brains of 10 PSP and six control patients were investigated by immunohistochemical analysis. RESULTS: Whereas C-terminal ErbB4 immunoreacitivity was partially but distinctly present in the cytoplasm and/or in the nucleus of neurons in control patients, it was rarely observed in the neuronal nuclei in PSP patients. In contrast, neurofibrillary tangles, coiled bodies and threads were robustly immunoreactive for C-terminal ErbB4 in PSP. Double immunofluorescence for C-terminal ErbB4 and phospho-tau revealed co localization of these proteins within neuronal and glial inclusions. To the contrary, there was no difference in the subcellular localization of NRG1, ErbB1, ErbB2, and N-terminal ErbB4 between control and PSP patients. These proteins were localized in the cytoplasm of neurons. CONCLUSIONS: Our present results suggest that NRG1/ErbB4 signalling could be an important event in the pathogenesis of PSP. PMID- 29319908 TI - Integrating Bayesian genomic cline analyses and association mapping of morphological and ecological traits to dissect reproductive isolation and introgression in a Louisiana Iris hybrid zone. AB - Hybrid zones provide unique opportunities to examine reproductive isolation and introgression in nature. We utilized 45,384 single nucleotide polymorphism (SNP) loci to perform association mapping of 14 floral, vegetative and ecological traits that differ between Iris hexagona and Iris fulva, and to investigate, using a Bayesian genomic cline (BGC) framework, patterns of genomic introgression in a large and phenotypically diverse hybrid zone in southern Louisiana. Many loci of small effect size were consistently found to be associated with phenotypic variation across all traits, and several individual loci were revealed to influence phenotypic variation across multiple traits. Patterns of genomic introgression were quite heterogeneous throughout the Louisiana Iris genome, with I. hexagona alleles tending to be favoured over those of I. fulva. Loci that were found to have exceptional patterns of introgression were also found to be significantly associated with phenotypic variation in a small number of morphological traits. However, this was the exception rather than the rule, as most loci that were associated with morphological trait variation were not significantly associated with excess ancestry. These findings provide insights into the complexity of the genomic architecture of phenotypic differences and are a first step towards identifying loci that are associated with both trait variation and reproductive isolation in nature. PMID- 29319909 TI - Inhibitory effects of sulfonylureas and non-steroidal anti-inflammatory drugs on in vitro metabolism of canagliflozin in human liver microsomes. AB - Canagliflozin, used to treat type 2 diabetes mellitus (T2DM), is commonly co administered with sulfonylureas. The objective of the present study was to evaluate the possible inhibitory effect of sulfonylureas and non-steroidal anti inflammatory drugs (NSAIDs) on canagliflozin metabolism in vitro. Three sulfonylurea derivatives were evaluated as inhibitors: chlorpropamide, glimepiride and gliclazide. Two other NSAIDs were used as positive control inhibitors: niflumic acid and diclofenac. The rate of formation of canagliflozin metabolites was determined by HPLC analysis of in vitro incubations of canagliflozin as a substrate with and without inhibitors, using human liver microsomes (HLMs). Among sulfonylureas, glimepiride showed the most potent inhibitory effect against canagliflozin M7 metabolite formation, with an IC50 value of 88 MUm, compared to chlorpropamide and gliclazide with IC50 values of more than 500 MUm. Diclofenac inhibited M5 metabolite formation more than M7, with IC50 values of 32 MUm for M5 and 80 MUm for M7. Niflumic acid showed no inhibition activity against M5 formation, but had relatively selective inhibitory potency against M7 formation, which is catalysed by UGT1A9, with an IC50 value of 1.9 MUm and an inhibition constant value of 0.8 MUm. A clinical pharmacokinetic interaction between canagliflozin and sulfonylureas is unlikely. However, a possible clinically important drug interaction between niflumic acid and canagliflozin has been identified. PMID- 29319910 TI - Reversal of mecamylamine-induced effects in healthy subjects by nicotine receptor agonists: Cognitive and (electro) physiological responses. AB - AIMS: Establishing a pharmacological challenge model could yield an important tool to understand the complex role of the nicotinic cholinergic system in cognition and to develop novel compounds acting on the nicotinic acetylcholine receptor. METHODS: This randomized, double-blind, double-dummy, placebo controlled, four-way crossover study examined the effects of the nicotinic antagonist mecamylamine on a battery of cognitive and neurophysiological test with coadministration of a placebo, nicotine or galantamine in order to reverse the cognitive impairment caused by mecamylamine. RESULTS: Thirty-three healthy subjects received a single oral dose of 30 mg of mecamylamine (or placebo) in combination with either 16 mg of oral galantamine or 21 mg of transdermal nicotine (or its double-dummy). Mecamylamine 30 mg induced significant disturbances of cognitive functions. Attention and execution of visual (fine) motor tasks was decreased, short- and long-term memory was impaired and the reaction velocity during the test was slower when compared to placebo. Mecamylamine 30 mg produced a decrease in posterior alpha and beta power in the surface electroencephalogram, effects that were reversed by nicotine coadministration. Memory and motor coordination tests could be partially reversed by the coadministration of nicotine. CONCLUSIONS: Mecamylamine administration induced slowing of the electroencephalogram and produced decrease in performance of tests evaluating motor coordination, sustained attention and short- and long term memory. These effects could be partially reversed by the coadministration of nicotine, and to a lesser extent by galantamine. PMID- 29319912 TI - Transcriptomics in the wild: Hibernation physiology in free-ranging dwarf lemurs. AB - Hibernation is an adaptive strategy some mammals use to survive highly seasonal or unpredictable environments. We present the first investigation on the transcriptomics of hibernation in a natural population of primate hibernators: Crossley's dwarf lemurs (Cheirogaleus crossleyi). Using capture-mark-recapture techniques to track the same animals over a period of 7 months in Madagascar, we used RNA-seq to compare gene expression profiles in white adipose tissue (WAT) during three distinct physiological states. We focus on pathway analysis to assess the biological significance of transcriptional changes in dwarf lemur WAT and, by comparing and contrasting what is known in other model hibernating species, contribute to a broader understanding of genomic contributions of hibernation across Mammalia. The hibernation signature is characterized by a suppression of lipid biosynthesis, pyruvate metabolism and mitochondrial associated functions, and an accumulation of transcripts encoding ribosomal components and iron-storage proteins. The data support a key role of pyruvate dehydrogenase kinase isoenzyme 4 (PDK4) in regulating the shift in fuel economy during periods of severe food deprivation. This pattern of PDK4 holds true across representative hibernating species from disparate mammalian groups, suggesting that the genetic underpinnings of hibernation may be ancestral to mammals. PMID- 29319911 TI - Genomic islands of differentiation in two songbird species reveal candidate genes for hybrid female sterility. AB - Hybrid sterility is a common first step in the evolution of postzygotic reproductive isolation. According to Haldane's Rule, it affects predominantly the heterogametic sex. While the genetic basis of hybrid male sterility in organisms with heterogametic males has been studied for decades, the genetic basis of hybrid female sterility in organisms with heterogametic females has received much less attention. We investigated the genetic basis of reproductive isolation in two closely related avian species, the common nightingale (Luscinia megarhynchos) and the thrush nightingale (L. luscinia), that hybridize in a secondary contact zone and produce viable hybrid progeny. In accordance with Haldane's Rule, hybrid females are sterile, while hybrid males are fertile, allowing gene flow to occur between the species. Using transcriptomic data from multiple individuals of both nightingale species, we identified genomic islands of high differentiation (FST ) and of high divergence (Dxy ), and we analysed gene content and patterns of molecular evolution within these islands. Interestingly, we found that these islands were enriched for genes related to female meiosis and metabolism. The islands of high differentiation and divergence were also characterized by higher levels of linkage disequilibrium than the rest of the genome in both species indicating that they might be situated in genomic regions of low recombination. This study provides one of the first insights into genetic basis of hybrid female sterility in organisms with heterogametic females. PMID- 29319913 TI - What is your diagnosis? Inguinal mass in a dog. PMID- 29319914 TI - Aquablation therapy for symptomatic benign prostatic hyperplasia: a single-centre experience in 47 patients. AB - OBJECTIVE: To report procedure process improvements and confirm the preserved safety and short-term effectiveness of a second-generation Aquablation device for the treatment of lower urinary tract symptoms (LUTS) attributable to benign prostatic hyperplasia (BPH) in 47 consecutive patients at a single institution. PATIENTS AND METHODS: Aquablation was performed in 47 patients with symptomatic BPH at a single institution. Baseline, peri-operative and 3-month urinary function data were collected. RESULTS: The mean (range) patient age was 66 (50 79) years, and transrectal ultrasonography-measured prostate volume was 48 (20 118) mL. A median lobe was present in 25 patients (53%) and eight patients had catheter-dependent urinary retention. The mean (range) total procedure time was 35 (13-128) min and the tissue resection time was 4 (1-10) min. Five Clavien Dindo grade I/II and five Clavien-Dindo grade III complications were recorded in eight patients. The mean (range) hospital stay was 3.1 (1-8) days and the mean (range) duration of urethral catheterization was 1.9 (1-11) days. The mean International Prostate Symptom Score (IPSS) decreased from 24.4 at baseline to 5 at 3 months; IPSS quality-of-life score decreased from 4.5 to 0.3 points; peak urinary flow rate increased from 7.1 to 16.5 mL/s and post-void residual urine volume decreased from 119 to 43 mL (all P < 0.01). CONCLUSIONS: This study confirmed procedure process improvements resulting from system enhancements, with preservation of safety and effectiveness during use of a second-generation device for the treatment of LUTS attibutable to BPH in the largest single-institution study conducted to date. PMID- 29319915 TI - Enantioselective ultra high performance liquid and supercritical fluid chromatography: The race to the shortest chromatogram. AB - The ever-increasing need for enantiomerically pure chiral compounds has greatly expanded the number of enantioselective separation methods available for the precise and accurate measurements of the enantiomeric purity. The introduction of chiral stationary phases for liquid chromatography in the last decades has revolutionized the routine methods to determine enantiomeric purity of chiral drugs, agrochemicals, fragrances, and in general of organic and organometallic compounds. In recent years, additional efforts have been placed on faster, enantioselective analytical methods capable to fulfill the high throughput requirements of modern screening procedures. Efforts in this field, capitalizing on improved chromatographic particle technology and dedicated instrumentation, have led to highly efficient separations that are routinely completed on the seconds time scale. An overview of the recent achievements in the field of ultra high-resolution chromatography on column packed with chiral stationary phases, both based on sub-2 MUm fully porous and sub-3 MUm superficially porous particles, will be given, with an emphasis on very recent studies on ultrafast chiral separations. PMID- 29319916 TI - 1.0T MR-guided percutaneous coaxial cutting needle biopsy in pancreatic lesion diagnosis. AB - BACKGROUND: Pancreatic carcinoma is a common cause of cancer deaths worldwide. Biopsy is often required for the initial diagnosis of pancreatic masses. Biopsy can be performed endoscopically or percutaneously with computed tomography (CT) and ultrasound (US) guidance. MRI offers many inherent advantages over CT and US. PURPOSE/HYPOTHESIS: To prospectively evaluate the feasibility, accuracy, and safety of MRI-guided percutaneous coaxial cutting needle biopsy of pancreatic lesions using an open 1.0T high-field MR scanner. STUDY TYPE: Prospective. POPULATION: Thirty-one patients with 31 pancreatic lesions underwent MR-guided percutaneous coaxial cutting needle biopsy. FIELD STRENGTH/SEQUENCE: 1.0T T2 WI TSE PDW-aTSE T1 WI-TFE. ASSESSMENT: Final diagnosis was confirmed by surgery and clinical follow-up for at least 12 months. The accuracy, sensitivity, and specificity were calculated. Complications were recorded. STATISTICAL TESTS: There was no statistical analysis in this study. RESULTS: The procedure was technically successful and final biopsy samples were adequate for histopathological examination in all patients. Biopsy pathology revealed malignant pancreatic tumor in 25 patients (25/31, 80.6%), and benign pancreatic lesions were present in six patients (6/31, 19.4%). The final diagnosis was pancreatic malignancy in 27 patients and benign disease in four patients, which was confirmed by surgery and clinical follow-up. Two biopsy results were false negative. The diagnostic accuracy in biopsies was 93.5% (29 of 31). The sensitivity to detect a malignant disease was 92.6% (25 of 27), and the specificity was 100%. All patients tolerated the procedure well; minor peripancreatic hemorrhage was found in two patients after the procedure, and none had major complications either during or after the procedure. DATA CONCLUSION: MRI-guided percutaneous biopsy of pancreatic lesions using an open 1.0T high field scanner has high diagnostic accuracy, which is feasible and safe for use in clinical practice. LEVEL OF EVIDENCE: 2 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2018;48:382-388. PMID- 29319917 TI - Nerve-sparing radical cystectomy has a beneficial impact on urinary continence after orthotopic bladder substitution, which becomes even more apparent over time. AB - OBJECTIVE: To analyse urinary continence in long-term survivors after radical cystectomy (RC) and orthotopic bladder substitution (OBS) according to attempted nerve-sparing (NS) status. PATIENTS AND METHODS: We analysed 180 consecutive patients treated at our department between 1985 and 2007, who underwent RC with OBS, and survived >=10 years after RC. We stratified patients by attempted NS status and evaluated continence outcomes using descriptive statistics and Cox proportional hazards regression models. A secondary analysis evaluated erectile function as a quality control for attempted NS. RESULTS: The median (interquartile range [IQR]) age at RC was 62 (57-71) years. Of 180 patients, attempted NS status was none in 24 (13%), unilateral in 100 (56%), and bilateral in 56 (31%). After a median (IQR) follow-up of 169 (147-210) months, 160 (89%) patients were continent during daytime and 124 (69%) during night-time. In multivariable analysis, any degree of attempted NS was significantly associated with daytime continence (odds ratio [OR] 2.08, 95% confidence interval [CI] 1.05 4.11; P = 0.04). Correspondingly, any attempted NS was significantly associated with night-time continence (OR 2.51, 95% CI 1.08-5.85; P = 0.03). Recovery of erectile function at 5 years was also significantly associated with attempted NS (P < 0.001). CONCLUSION: Nerve-sparing during RC and OBS was associated with better long-term continence outcomes. This becomes more apparent as the patients age with their OBS. We advocate a NS RC whenever an OBS is considered. PMID- 29319918 TI - Comparison of modified two-point dixon and chemical shift encoded MRI water-fat separation methods for fetal fat quantification. AB - BACKGROUND: Fetal fat is indicative of the energy balance within the fetus, which may be disrupted in pregnancy complications such as fetal growth restriction, macrosomia, and gestational diabetes. Water-fat separated MRI is a technique sensitive to tissue lipid content, measured as fat fraction (FF), and can be used to accurately measure fat volumes. Modified two-point Dixon and chemical shift encoded MRI (CSE-MRI) are water-fat separated MRI techniques that could be applied to imaging of fetal fat. Modified two-point Dixon has biases present that are corrected in CSE-MRI which may contribute to differences in the fat measurements. PURPOSE: To compare the measurement of fetal fat volume and FF by modified two-point Dixon and CSE-MRI. STUDY TYPE: Cross-sectional study for comparison of two MRI pulse sequences. POPULATION: Twenty-one pregnant women with singleton pregnancies. FIELD STRENGTH/SEQUENCE: 1.5T, modified two-point Dixon and CSE-MRI. ASSESSMENT: Manual segmentation of total fetal fat volume and mean FF from modified 2-point Dixon and CSE-MRI FF images. STATISTICAL TESTS: Reliability was assessed by calculating the intraclass correlation coefficient (ICC). Agreement was assessed using a one-sample t-test on the fat measurements difference values (modified two-point Dixon - CSE-MRI). The difference scores were tested against a value of 0, which would indicate that the measurements were identical. RESULTS: The fat volume and FF measured by modified two-point Dixon and CSE-MRI had excellent reliability, demonstrated by ICCs of 0.93 (P < 0.001) and 0.90 (P < 0.001), respectively. They were not in agreement, with CSE-MRI giving mean fat volumes 180 mL greater and mean FF 3.0% smaller than modified two point Dixon. DATA CONCLUSION: The reliability between modified two-point Dixon and CSE-MRI indicates that either technique can be used to compare fetal fat measurements in different participants, but they are not in agreement possibly due to uncorrected biases in modified two-point Dixon. LEVEL OF EVIDENCE: 4 Technical Efficacy: Stage 1 J. Magn. Reson. Imaging 2018. PMID- 29319919 TI - Outcomes and toxicities in patients with intermediate-risk prostate cancer treated with brachytherapy alone or brachytherapy and supplemental external beam radiation therapy. AB - OBJECTIVE: To evaluate the cancer control outcomes and long-term treatment related morbidity of brachytherapy as well as combination brachytherapy and external beam radiation therapy (EBRT) in patients with intermediate-risk prostate cancer. MATERIALS AND METHODS: A retrospective review was conducted in a prospectively collected database of patients with intermediate-risk prostate cancer who were treated either with brachytherapy or brachytherapy and EBRT, with or without androgen deprivation therapy (ADT), in the period 1990-2014. Urinary and erectile dysfunction symptoms were measured using the International Prostate Symptom Score (IPSS), the Mount Sinai erectile function scale and the Sexual Health Inventory for Men (SHIM). Cancer control endpoints included biochemical failure and development of distant metastases. All statistical analyses were carried out using the Statistical Package for Social Science (SPSS). Survival curves were calculated using Kaplan-Meier actuarial methods and compared using log-rank tests. Cox regression multivariate analyses were used to test the effect of multiple variables on treatment outcomes. RESULTS: A total of 902 patients were identified, with a median follow-up of 91 months. Of these, 390 received brachytherapy and 512 received combination therapy with EBRT. In patients with one intermediate-risk factor, the addition of EBRT did not significantly affect freedom from biochemical failure or distant metastases. Among patients with two or three intermediate-risk factors, added EBRT did not improve freedom from biochemical failure. Significant differences in late toxicity between patients treated with brachytherapy vs combination brachytherapy and EBRT were identified including urge incontinence (P < 0.001), haematuria (P < 0.001), dysuria (P < 0.001), and change in quality-of-life IPSS (P = 0.002). These symptoms were reported by patients at any point during treatment follow-up. Analysis of patients who were potent before treatment using actuarial methods showed that patients receiving combination therapy more frequently experienced loss of potency, as measured by the Mount Sinai erectile function scale (P = 0.040). CONCLUSION: Brachytherapy monotherapy results in equal biochemical and distant control in both patients with one and more than one intermediate-risk features. While no significant benefit was shown, we believe that the addition of EBRT may prevent recurrence in patients with multiple intermediate-risk features and should be considered. PMID- 29319920 TI - Employee attitudes towards aggression in persons with dementia: Readiness for wider adoption of person-centered frameworks. AB - WHAT IS KNOWN ON THE SUBJECT: Person-centered care, as compared to standard approaches, is a widely accepted, evidence-based approach for managing aggressive behaviour in persons with dementia. The attitudes, beliefs and values of long term care and mental health nursing employees are important prerequisites to implementing person-centered practices. Research shows that nursing employees typically support person-centered approaches; however, less is known about the attitudes of non-nursing employee groups. WHAT THIS PAPER ADDS TO EXISTING KNOWLEDGE: Nurse managers and administrators tended to agree with person-centered approaches for managing aggression in dementia, suggesting some prerequisites are in place to support wider adoption of person-centered frameworks. Employees with more resident contact tended to support person-centered approaches the least, suggesting discipline-specific trainings may not be adequate for preparing frontline staff to use person-centered techniques. Attitudes towards aggressive behaviour may be especially varied and contradictory within certain employee groups, providing implications for facility-wide initiatives. IMPLICATIONS FOR PRACTICE: Person-centered values and practices should be monitored and reinforced across the organization. Person-centered trainings should be interdisciplinary in nature and focused on care areas, such as mealtime or bathing. Long-term care facilities should consider allowing nurse management and registered nurses to share the burden of direct resident care with frontline employees on a more regular basis. ABSTRACT: Introduction Implementing person-centered care requires shared attitudes, beliefs and values among all care employees. Existing research has failed to examine the attitudes of non-nursing employees. Aim This study examined attitudes towards aggression among nursing and non-nursing employees to address gaps in existing research and assess readiness for wider adoption of person-centered frameworks. Method The Management of Aggression in People with Dementia Attitude Questionnaire was used to survey attitudes of employees in Michigan-based nursing homes. Results Overall, employees preferred person centered over standard approaches. Job title was a significant predictor of paradigm support. Frontline employees were found to support person-centered attitudes the least. Wide-ranging responses were noted within employee groups. Discussion Job title may influence the degree to which an employee supports and utilizes person-centered approaches. Employees with the most contact with persons with dementia may be the least likely to implement person-centered approaches. In contrast to prior studies, years of experience was not a significant predictor of attitude towards aggressive behaviour. Wide-ranging responses indicate that employee attitudes are varied and complex. Implications Person-centered approaches should be trained within care areas rather than individual employee groups. Programs should be interdisciplinary and seek to establish a shared understanding of person-centered beliefs and values. PMID- 29319921 TI - Enantioselective and simultaneous determination of lactate and 3-hydroxybutyrate in human plasma and urine using a narrow-bore online two-dimensional high performance liquid chromatography system. AB - For the enantioselective and simultaneous analysis of lactate and 3 hydroxybutyrate, a validated online two-dimensional high-performance liquid chromatography system using 4-nitro-7-piperazino-2,1,3-benzoxadiazole as a fluorescent derivatization reagent has been developed. For the reversed-phase separation in the first dimension, a Capcell Pak C18 ACR column (1.5 * 250 mm, particle size 3 MUm) was used, and the target fractions were isolated by their hydrophobicity. In the second dimension, a polysaccharide-coated enantioselective column, Chiralpak AD-H (2.0 * 250 mm, 5 MUm), was used. The system was validated by the calibration curve, intraday precision, interday precision, and accuracy using standards and real human samples, and satisfactory results were obtained. The present method was applied to human plasma and urine, and in the plasma, trace amounts of d-lactate (8.4 MUM) and l-3-hydroxybutyrate (1.0 MUM), besides high levels of l-lactate (860.9 MUM) and d-3-hydroxybutyrate (59.4 MUM), were successfully determined. In urine, trace levels of d-lactate (3.7 MUM), d-3 hydroxybutyrate (2.3 MUM), and l-3-hydroxybutyrate (3.3 MUM) in addition to a relatively large amount of l-lactate (15.4 MUM) were observed. The present online two-dimensional high-performance liquid chromatography system is useful for the simultaneous determination of all the lactate and 3-hydroxybutyrate enantiomers in human physiological fluids, and further clinical applications are ongoing. PMID- 29319922 TI - The effect of timing of an immediate instillation of mitomycin C after transurethral resection in 941 patients with non-muscle-invasive bladder cancer. AB - OBJECTIVE: To investigate whether the timing of an immediate instillation of mitomycin C (on the day of transurethral resection of bladder tumour [TURBT] or 1 day later) has an impact on time to recurrence of non-muscle-invasive bladder cancer (NMIBC). PATIENTS AND METHODS: All patients with NMIBC who were enrolled in a prospective trial between 1998 and 2003, and treated with an early mitomycin C instillation (on the day of TURBT or 1 day later), were selected. Statistical analysis was performed with Kaplan-Meier curves and multivariable Cox regression. RESULTS: Administering an instillation of mitomycin C on the day of TURBT or 1 day later did not show a statistically significant difference in time to recurrence in a univariable model (log-rank P = 0.99). After correcting for the number of scheduled adjuvant instillations, no statistically significant difference could be detected either: hazard ratio 1.05 (95% confidence interval 0.81-1.35, P = 0.74). CONCLUSION: These data do not support the hypothesis that a very early instillation (on the day of TURBT) of mitomycin C decreases the risk of recurrence as compared with an early instillation (1 day after TURBT). PMID- 29319923 TI - Attitudes towards mental health, mental health research and digital interventions by young adults with type 1 diabetes: A qualitative analysis. AB - BACKGROUND: Young people with type 1 diabetes are at increased risk of mental disorders. Whereas treatment need is high, difficulty recruiting young people with type 1 diabetes into psychosocial studies complicates development, testing and dissemination of these interventions. OBJECTIVE: Interviews with young adults with type 1 diabetes were conducted to examine attitudes towards mental health and mental health research, including barriers and motivators to participation in mental health studies and preferred sources of mental health support. The interviews were audio-taped, transcribed and evaluated via thematic analysis. SETTING AND PARTICIPANTS: Young adults with type 1 diabetes were recruited via social media channels of 3 advocacy organizations. A total of 31 young adults (26 females and 5 males) with an average age of 22 years were interviewed between October 2015 and January 2016. RESULTS: Participants were largely unaware of their increased vulnerability to common mental health problems and knew little about mental health research. Major barriers to participation included perceived stigma and lifestyle issues and low levels of trust in researchers. Opportunities to connect with peers and help others were described as key motivators. Psychological distress was considered normal within the context of diabetes. A need for some level of human contact in receiving psychosocial support was expressed. DISCUSSION AND CONCLUSION: Findings provide valuable insights into the complex dynamics of engaging young adults with type 1 diabetes in mental health studies. Interviewees provided practical suggestions to assist investigation and delivery of psychosocial interventions for this vulnerable group. PMID- 29319924 TI - Myocardial oedema and congestive heart failure: one piece of the puzzle? Reply. PMID- 29319925 TI - Differences between serious and nonserious patient safety incidents in the largest hospital district in Finland. AB - OBJECTIVES: To determine if and in what ways serious patient safety incidents differ from nonserious patient safety incidents. METHODS: Statistical analysis was performed on patient safety incident reports that were reported in 2015 in Finland's largest hospital district (Helsinki and Uusimaa, HUS). Reports were divided into two groups: nonserious incidents and serious incidents. Differences between groups were studied from several types of categorically divided information. RESULTS: Of the total number of reports (15,863), 1% were serious incidents (175). Serious and nonserious incidents differed significantly from each other. Serious incidents concerning laboratory, imaging, or medical equipment were more common. On the other hand, incidents concerning medication, infusion, and blood transfusion were less frequent. In serious incidents, the proportion of doctors reporting was greater, and contributing factors were better recognized, the most common being working of procedures. CONCLUSIONS: In the future, special attention should be given to the particular aspects of serious patient safety incidents, such as safe use of medical equipment, training, and handling of procedures. Root cause analysis is an effective way to handle serious incidents and enables the prevention of their reoccurrence. However, a systematic follow-up of the root cause analysis should be developed. PMID- 29319926 TI - The role of lymph node dissection in the management of renal cell carcinoma: a systematic review and meta-analysis. AB - Our objective was to evaluate the role of retroperitoneal lymph node dissection (LND) in non-metastatic (M0) and metastatic (M1) renal cell carcinoma (RCC). We searched Medline, EMBASE, Web of Science and Scopus from database inception to 29 August 2017 for studies of patients who underwent partial or radical nephrectomy for M0 or M1 RCC. Two investigators independently selected studies for inclusion. Risk of bias was assessed using the Newcastle-Ottawa scale, Cochrane Collaboration tool and National Heart, Lung and Blood Institute Quality Assessment Tool. Random effects meta-analysis was performed for all-cause mortality. The GRADE approach was used to characterize quality of evidence. A total of 51 unique studies were included in the qualitative systematic review. Risk of bias was low in 41/51 (80%) studies. LND was not associated with all cause mortality in either M0 (hazard ratio [HR] 1.02, 95% confidence interval [CI] 0.92-1.12; I2 = 0%; four studies), M1 (HR 1.04, 95% CI 0.83-1.29; I2 = 0%; two studies), or pooled M0 and M1 settings (HR 1.00, 95% CI 0.92-1.09; I2 = 0%; seven studies), with no statistically significant differences according to M stage subgroups (P = 0.50). In the three studies that examined M0 subgroups with a high risk of nodal metastasis, LND was not associated with improved oncological outcomes. Studies on the association of extent of LND with survival reported inconsistent results. Meanwhile, a small proportion of patients with pN1M0 disease demonstrate durable long-term oncological control after surgery, with 10 year cancer-specific survival of 21-31%. Nodal involvement is independently associated with adverse prognosis in both M0 and M1 settings. GRADE quality of evidence was moderate or low for the outcomes examined. Although LND yields independent prognostic information, the existing literature does not support a therapeutic benefit to LND in either M0 or M1 RCC. High-risk M0 patient groups warrant further study, as a subset of patients with isolated nodal metastases experience long-term survival after surgical resection. PMID- 29319927 TI - Which outcome measures should be used in stress urinary incontinence trials? AB - OBJECTIVE: To review measures used in recent randomised controlled trials (RCTs) evaluating stress urinary incontinence (SUI) treatments and to propose the most relevant outcome measure that should be included in future trials. MATERIALS AND METHODS: We identified RCTs for SUI interventions published between January 2015 and July 2017. We listed the objective and subjective outcome measures used in eligible trials in the literature search. Using data from our RCT conducted from 2013 to 2016 evaluating pulsed magnetic stimulation for SUI, we analysed the correlation between all measures. RESULTS: A total of 45 RCTs were included; 28 (62%) involved surgical interventions. The most frequently used objective and subjective measures were the cough stress test and International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF), respectively. In all, 24 different validated questionnaires were administered in the 42 studies that used subjective outcome measure. Analyses of measures used in our trial showed that all measures were significantly correlated with each other except for pelvic floor muscle function. The ICIQ-UI SF showed the highest correlation coefficients (0.587-0.733) with all outcome measures. CONCLUSION: The outcome measures used in recent trials were inconsistent. The ICIQ-UI SF had the highest correlation with all measures in our trial; however, further studies evaluating correlation of measures in other patient cohorts are needed to corroborate our present results. We propose the use of ICIQ-UI SF, as the most relevant outcome measure, in future trials evaluating efficacy of SUI interventions. PMID- 29319928 TI - Low-dose-rate brachytherapy for prostate cancer: outcomes at >10 years of follow up. AB - OBJECTIVE: To examine biochemical control, survival, and late morbidity with definitive low-dose-rate brachytherapy (LDR-BT) for patients with prostate cancer surviving for >10 years after treatment. PATIENTS AND METHODS: We identified 757 men with localised prostate cancer who underwent definitive LDR-BT in the period 1990-2006 and were followed for >10 years at our institution. Biochemical failure free survival (BFFS), distant metastases-free survival (DMFS), prostate cancer specific survival (PCSS), and overall survival (OS) were selected as study endpoints. Survival was examined using the log-rank test, Kaplan-Meier method, and Cox regression modelling. Urinary, quality of life (QoL), and potency scores at baseline and last follow-up were recorded. RESULTS: The median follow-up was 12.5 years (range, 10.1-21.8 years). At the time of analysis, 88.6% of patients were alive, 1.5% died from prostate cancer and 13.9% developed biochemical failure, with 82% of failures occurring in the first decade of follow-up. Overall, 2.3% developed distant metastases. On multivariate analyses, stage T3a T3b, prostate-specific antigen level of >20 ng/mL, intermediate- and high-risk disease predicted worse BFFS; whereas age >70 years at diagnosis and stage T3a T3b predicted worse OS. A total biologically effective dose of >=150 Gy and androgen-deprivation therapy were associated with improved BFFS, but not OS. The overall 17-year rates for BFFS, DMFS, PCSS, and OS were 79, 97, 97, and 72%, respectively. Respective 17-year BFFS rates for low-, intermediate- and high-risk patients were 86, 80, and 65% (P < 0.001), whereas OS rates for the same groups were 82, 73, and 60%, respectively (P = 0.09). Amongst those patients who were potent at baseline, 25% remained potent at the last follow-up. Urinary function and QoL were mainly unaffected. CONCLUSIONS: LDR-BT yields excellent survival rates, with a 17-year PCSS rate of 97%. In all, 18% of patients with biochemical relapse failed at >10 years after implantation, which justifies their continued follow-up. PMID- 29319929 TI - Interconversion of Molybdenum Imido and Amido Complexes by Proton-Coupled Electron Transfer. AB - Interconversion of the molybdenum amido [(Ph Tpy)(PPh2 Me)2 Mo(NHtBuAr)][BArF24 ] (Ph Tpy=4'-Ph-2,2',6',2"-terpyridine; tBuAr=4-tert-butyl-C6 H4 ; ArF24 =(C6 H3 3,5-(CF3 )2 )4 ) and imido [(Ph Tpy)(PPh2 Me)2 Mo(NtBuAr)][BArF24 ] complexes has been accomplished by proton-coupled electron transfer. The 2,4,6-tri-tert butylphenoxyl radical was used as an oxidant and the non-classical ammine complex [(Ph Tpy)(PPh2 Me)2 Mo(NH3 )][BArF24 ] as the reductant. The N-H bond dissociation free energy (BDFE) of the amido N-H bond formed and cleaved in the sequence was experimentally bracketed between 45.8 and 52.3 kcal mol-1 , in agreement with a DFT-computed value of 48 kcal mol-1 . The N-H BDFE in combination with electrochemical data eliminate proton transfer as the first step in the N-H bond-forming sequence and favor initial electron transfer or concerted pathways. PMID- 29319931 TI - Metaproteomics of Colonic Microbiota Unveils Discrete Protein Functions among Colitic Mice and Control Groups. AB - Metaproteomics can greatly assist established high-throughput sequencing methodologies to provide systems biological insights into the alterations of microbial protein functionalities correlated with disease-associated dysbiosis of the intestinal microbiota. Here, the authors utilize the well-characterized murine T cell transfer model of colitis to find specific changes within the intestinal luminal proteome associated with inflammation. MS proteomic analysis of colonic samples permitted the identification of ~10 000-12 000 unique peptides that corresponded to 5610 protein clusters identified across three groups, including the colitic Rag1-/- T cell recipients, isogenic Rag1-/- controls, and wild-type mice. The authors demonstrate that the colitic mice exhibited a significant increase in Proteobacteria and Verrucomicrobia and show that such alterations in the microbial communities contributed to the enrichment of specific proteins with transcription and translation gene ontology terms. In combination with 16S sequencing, the authors' metaproteomics-based microbiome studies provide a foundation for assessing alterations in intestinal luminal protein functionalities in a robust and well-characterized mouse model of colitis, and set the stage for future studies to further explore the functional mechanisms of altered protein functionalities associated with dysbiosis and inflammation. PMID- 29319932 TI - Pharmacokinetics, Safety, and Tolerability of Tedizolid Phosphate in Elderly Subjects. AB - Tedizolid phosphate is approved for the treatment of acute bacterial skin and skin structure infections in adults. We evaluated the pharmacokinetics of tedizolid in elderly subjects to guide dosing recommendations. In an open-label phase 1 study (ClinicalTrials.gov identifier NCT01496677), 14 elderly (>=65 years) and 14 younger control (18-45 years) subjects each received a single oral dose of tedizolid phosphate 200 mg. Blood samples were collected before dose and more than 72 hours after dose. The pharmacokinetic parameters of tedizolid after a single dose were similar in both age groups. Geometric mean ratios (elderly/younger controls) and corresponding 90% confidence intervals were maximum observed plasma concentration (Cmax ), 1.091 (0.917-1.297); AUC from time 0 extrapolated to infinity (AUC0-infinity ), 1.132 (0.954-1.343). Tedizolid plasma exposure was similar in elderly and younger control subjects. The findings indicated that after intravenous or oral administration of tedizolid phosphate 200 mg once daily, no dose adjustment was warranted in elderly subjects to achieve therapeutic levels. PMID- 29319934 TI - Identification and functional characterization of type II toxin/antitoxin systems in Aggregatibacter actinomycetemcomitans. AB - Type II toxin/antitoxin (TA) systems contribute to the formation of persister cells and biofilm formation for many organisms. Aggregatibacter actinomycetemcomitans thrives in the complex oral microbial community subjected to continual environmental flux. Little is known regarding the presence and function of type II TA systems in this organism or their contribution to adaptation and persistence in the biofilm. We identified 11 TA systems that are conserved across all seven serotypes of A. actinomycetemcomitans and represent the RelBE, MazEF and HipAB families of type II TA systems. The systems selectively responded to various environmental conditions that exist in the oral cavity. Two putative RelBE-like TA systems, D11S_1194-1195 and D11S_1718-1719 were induced in response to low pH and deletion of D11S_1718-1719 significantly reduced metabolic activity of stationary phase A. actinomycetemcomitans cells upon prolonged exposure to acidic conditions. The deletion mutant also exhibited reduced biofilm biomass when cultured under acidic conditions. The D11S_1194 and D11S_1718 toxin proteins inhibited in vitro translation of dihydrofolate reductase (DHFR) and degraded ribosome-associated, but not free, MS2 virus RNA. In contrast, the corresponding antitoxins (D11S_1195 and D11S_1719), or equimolar mixtures of toxin and antitoxin, had no effect on DHFR production or RNA degradation. Together, these results suggest that D11S_1194-1195 and D11S_1718 1719 are RelBE-like type II TA systems that are activated under acidic conditions and may function to cleave ribosome-associated mRNA to inhibit translation in A. actinomycetemcomitans. In vivo, these systems may facilitate A. actinomycetemcomitans adaptation and persistence in acidic local environments in the dental biofilm. PMID- 29319935 TI - Clinical Bioavailability of the Novel BACE1 Inhibitor Lanabecestat (AZD3293): Assessment of Tablet Formulations Versus an Oral Solution and the Impact of Gastric pH on Pharmacokinetics. AB - The relative bioavailability of lanabecestat administered as 2 tablet formulations versus an oral solution was investigated. This phase 1 single center, open-label, randomized, 3-period crossover study involved healthy male and nonfertile female subjects aged 18-55 years (NCT02039180). Subjects received a single 50-mg lanabecestat dose as solution, tablet A, or tablet B on day 1 of each crossover period; 14 of 16 subjects completed the study. Relative bioavailability based on plasma lanabecestat AUC0-infinity (area under the plasma drug concentration-time curve from zero to infinity) geometric mean ratio versus oral solution (primary variable) was: tablet A, 1.052 (90% confidence interval [CI], 1.001-1.106); tablet B, 1.040 (0.989-1.093). These 90%CIs for geometric mean ratios are within accepted standard bioequivalence boundaries for all other pharmacokinetic (PK) parameters for both lanabecestat and metabolite (AZ13569724). All 3 formulations had similar plasma lanabecestat concentration time profiles. Six adverse events were reported by 6 subjects (37.5%, all mild). GastroPlus modeling predicted a negligible impact of gastric pH changes on systemic PK (up to pH 7.4). Both tablet formulations fall within standard accepted bioequivalence criteria versus the oral solution. A single 50-mg lanabecestat dose was well tolerated as a solution or tablet formulation in this population. PMID- 29319936 TI - Submucosal gland mucus strand velocity is decreased in chronic rhinosinusitis. AB - BACKGROUND: Chronic rhinosinusitis (CRS) may be initiated by innately impaired host defense mechanisms that predispose the upper airways to infection. Recent evidence suggests tethering of submucosal gland mucus strands represents an inciting event within cystic fibrosis (CF) airways, occurring prior to onset of chronic infection. Submucosal gland hypertrophy and defective mucociliary clearance (MCC) are present in actively inflamed sinuses, but mucus strand velocity may also be affected as a secondary event, further contributing to chronic disease. The objective of this study is to assess whether mucus strand velocity is decreased in patients with CRS. METHODS: Mucosal explants from patients with and without CRS were submerged in Ringer's solution mixed with fluorescent nanospheres. Methacholine was then added, and videos demonstrating strand growth and detachment were generated from a time-lapse of Z-stack images using a multiphoton confocal microscope. Dynamic mucus strands were identified and individual velocities quantified with the MTrackJ plug-in of ImageJ. RESULTS: Fifteen patients met criteria for ex vivo analysis of mucus strand velocities (CRS, n = 9 vs controls, n = 6). Mucus strands were recorded (pixels/second) streaming from the submucosal gland openings. Average mucus strand velocities were significantly decreased in patients with CRS (1.53 +/- 0.67 vs controls, 4.86 +/- 1.68 pixels/second; p < 0.001). CONCLUSION: This study is the first to report evidence of abnormal mucus strand velocity from submucosal glands in diseased sinonasal mucosa. Future pharmacologic studies targeting this critical component of MCC are warranted. PMID- 29319937 TI - Medical Devices; Clinical Chemistry and Clinical Toxicology Devices; Classification of the Reagents for Molecular Diagnostic Instrument Test Systems. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the reagents for molecular diagnostic instrument test systems into class I (general controls). We are taking this action because we have determined that classifying the device into class I (general controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319938 TI - Medical Devices; Hematology and Pathology Devices; Classification of the Flow Cytometric Test System for Hematopoietic Neoplasms. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the flow cytometric test system for hematopoietic neoplasms into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the flow cytometric test system for hematopoietic neoplasms' classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319939 TI - Medical Devices; Neurological Devices; Classification of the Computerized Behavioral Therapy Device for Psychiatric Disorders. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the computerized behavioral therapy device for psychiatric disorders into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the computerized behavioral therapy device for psychiatric disorders' classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319940 TI - Medical Devices; Neurological Devices; Classification of the External Vagal Nerve Stimulator for Headache. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the external vagal nerve stimulator for headache into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the external vagal nerve stimulator for headache's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319941 TI - Medical Devices; Radiology Devices; Classification of the Rectal Balloon for Prostate Immobilization. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the rectal balloon for prostate immobilization into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the rectal balloon for prostate immobilization's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319942 TI - Medical Devices; Obstetrical and Gynecological Devices; Classification of the Pressure Wedge for the Reduction of Cesarean Delivery. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the pressure wedge for the reduction of cesarean delivery into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the pressure wedge for the reduction of cesarean delivery's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319943 TI - TRICARE; Reimbursement of Long Term Care Hospitals and Inpatient Rehabilitation Facilities. Final rule. AB - This final rule establishes reimbursement rates for Long Term Care Hospitals (LTCHs) and Inpatient Rehabilitation Facilities (IRFs) in accordance with the statutory requirement that TRICARE inpatient care "payments shall be determined to the extent practicable in accordance with the same reimbursement rules as apply to payments to providers of services of the same type under Medicare." This final rule adopts Medicare's reimbursement methodologies for inpatient services provided by LTCHs and IRFs. Each reimbursement methodology will be phased in over a 3-year period. This final rule also removes the definitions for "hospital, long term (tuberculosis, chronic care, or rehabilitation)" and "long-term hospital care," and creates separate definitions for "Long Term Care Hospital" and "Inpatient Rehabilitation Facility" adopting Centers for Medicare & Medicaid Services (CMS) classification criteria. This final rule also includes authority for a year-end, discretionary General Temporary Military Contingency Payment Adjustment (GTMCPA) for inpatient services in TRICARE network IRFs when deemed essential to meet military contingency requirements. PMID- 29319944 TI - Medical Devices; Hematology and Pathology Devices; Classification of the Whole Slide Imaging System. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the whole slide imaging system into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the whole slide imaging system's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319945 TI - Medical Devices; General and Plastic Surgery Devices; Classification of the Irrigating Wound Retractor Device. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the irrigating wound retractor device into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the irrigating wound retractor device's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319946 TI - Medical Devices; Hematology and Pathology Devices; Classification of a Cervical Intraepithelial Neoplasia Test System. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the cervical intraepithelial neoplasia (CIN) test system into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the CIN test system's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29319947 TI - Schedules of Controlled Substances: Temporary Placement of Cyclopropyl Fentanyl in Schedule I. Temporary amendment; temporary scheduling order. AB - The Administrator of the Drug Enforcement Administration is issuing this temporary scheduling order to schedule the synthetic opioid, -(1 phenethylpiperidin-4-yl)-N-phenylcyclopropanecarboxamide (cyclopropyl fentanyl), and its isomers, esters, ethers, salts, and salts of isomers, esters, and ethers in schedule I. This action is based on a finding by the Administrator that the placement of cyclopropyl fentanyl in schedule I of the Controlled Substances Act is necessary to avoid an imminent hazard to the public safety. As a result of this order, the regulatory controls and administrative, civil, and criminal sanctions applicable to schedule I controlled substances will be imposed on persons who handle (manufacture, distribute, reverse distribute, import, export, engage in research, conduct instructional activities or chemical analysis, or possess), or propose to handle, cyclopropyl fentanyl. PMID- 29320138 TI - Medical Devices; Radiology Devices; Classification of the Absorbable Perirectal Spacer. Final order. AB - The Food and Drug Administration (FDA or we) is classifying the absorbable perirectal spacer into class II (special controls). The special controls that apply to the device type are identified in this order and will be part of the codified language for the absorbable perirectal spacer's classification. We are taking this action because we have determined that classifying the device into class II (special controls) will provide a reasonable assurance of safety and effectiveness of the device. We believe this action will also enhance patients' access to beneficial innovative devices, in part by reducing regulatory burdens. PMID- 29320139 TI - Reimbursement for Emergency Treatment. Interim final rule. AB - The Department of Veterans Affairs (VA) revises its regulations concerning payment or reimbursement for emergency treatment for non-service-connected conditions at non-VA facilities to implement the requirements of a recent court decision. Specifically, this rulemaking expands eligibility for payment or reimbursement to include veterans who receive partial payment from a health-plan contract for non-VA emergency treatment and establishes a corresponding reimbursement methodology. This rulemaking also expands the eligibility criteria for veterans to receive payment or reimbursement for emergency transportation associated with the emergency treatment, in order to ensure that veterans are adequately covered when emergency transportation is a necessary part of their non VA emergency treatment. PMID- 29320140 TI - Using Community Partnerships to Integrate Health and Social Services for High Need, High-Cost Patients. AB - Issue: Our health care and social services delivery systems are not well-equipped to effectively manage patients with multiple chronic diseases and complex social needs such as food, housing, or substance abuse services. Community-level efforts have emerged across the nation to integrate the activities of disparate social service organizations with local health care delivery systems. Evidence on the experiences and outcomes of these programs is emerging, and there is much to learn about their approaches and challenges. Goal: Profile and classify burgeoning initiatives, understand common challenges, and surface solutions to address those challenges. Methods: Mixed-methods approach, including literature search, surveys, semistructured interviews with program leaders, and consultation with expert panels. Findings and Conclusions: We categorized cross-sector community partnerships in four dimensions. We also identified five common challenges: inadequate strategies to sustain cost-savings, improvement, and funding; lack of accurate and timely measurement of return on investment; lack of mechanisms to share potential savings between health care and social services providers; lack of expertise to integrate multiple data sources during health care or social services provision; and lack of a cross-sector workflow evidence base. PMID- 29320141 TI - Global Burden of Rheumatic Heart Disease. PMID- 29320142 TI - World suicide prevention day. PMID- 29320143 TI - Assessment and self-assessment of the pharmacists' competencies using the global competency framework (GbCF) in Serbia. AB - Background/Aim: Pharmacists' competence represents a dynamic framework of knowledge, skills and abilities to carry out tasks, and it reflects on improving the quality of life and on patients' health. One of the documents for the Evaluation and Competency Development of Pharmacists is the Global Competency Framework (GbCF). The aim of this study was to implement the GBCF document into Serbian pharmacies, to perform assessment and self assessment of the competencies. Methods: The assessment and self-assessment of pharmacists' competencies were performed during the period 2012-13 year in eight community pharmacy chains, in seven cities in Serbia. For assessment and self-assessment of pharmacists competencies the GbCF model was applied, which was adjusted to pharmaceutical practice and legislation in Serbia. External assessment was conducted by teams of pharmacists using the structured observation of the work of pharmacists during regular working hours. Evaluated pharmacists filled out the questionnaire about demographic indicators about the pharmacist and the pharmacy where they work. Results: A total of 123 pharmacists were evaluated. Pharmacists' Professional Competency Cluster (KK1) had the lowest score (average value 2.98), while the cluster Management and Organizational Competency (KK2) had the highest score (average value 3.15). The competence Recognition of the Diagnosis and Patient Counseling (K8), which belonged to the cluster KK1, had the lowest score (average value for assessment and self-assessment were 2.09, and 2.34, respectively) among the all evaluated competencies. Conclusion: GbCF might be considered as an instrument for the competencies' evaluation/selfevaluation and their improvement, accordingly. PMID- 29320144 TI - Translation and validation of the Croatian version of the Oral Impacts on Daily Performances (OIDP) scale. AB - Background/Aim: Among numerous sociodental indicators the Oral Impacts on Daily Performance (OIPD) is one of the most broadly applied. The aim of this study was to develop and test psychometric properties of a Croatian version of OIDP scale. Methods: The OIDP instrument was translated from English to Croatian in a forward backward method. The Croatian version was tested for reliability, construct validity and responsiveness on a sample of 702 participants (255 men), aged 18-86 years. Results: Internal consistency of Croatian version of the OIDP was acceptable (alpha = 0.80) and 69.4% of the examinees had oral impacts relating to one or several performances. The most frequently affected performance was eating (53.7%). The test-retest reliability was high (r = 0.99; 95% CI: 0.97-0.99), the mean difference between the OIDP summary scores in two-week interval was not statistically significant. In construct validity testing there was statistically significant correlation between OIDP and self-assessed general and oral health, somatisation, depression and Oral Health Impact Profile ranging from 0.157 to 0.516. Responsiveness was confirmed by a significant reduction of oral impacts on daily performances in subjects before and after treatment of acute dental pain (p < 0.001). Conclusion: The Croatian OIDP index showed good psychometric properties in terms of construct validity, internal consistency, test-retest reliability and responsiveness confirming its appropriateness for use among Croatian population. PMID- 29320145 TI - Prevalence of Borrelia burgdorferi sensu lato in Ixodes ricinus ticks and assessment of entomological risk index at localities in Belgrade. AB - Background/Aim: The first case of human Lyme borreliosis (LB) in Serbia was recorded in 1987. The number of reported LB cases has increased in the past decade. The aim of this study was to estimate the density of Ixodes ricinus (I. ricinus) ticks, the prevalence of Borrelia burgdorferi sensu lato (B. burgdorferi) in them, and entomological risk index (ERI) at 19 Belgrade localities which were grouped into three categories (forests, parkforests, parks). The values of ERI were compared with the number of tick bites in humans. Methods: Ticks were collected monthly by using the flag hours method and the infection rate was determined by using dark field microscopy. The ERI value was calculated for each locality where the ticks were collected. The related data about tick bites was obtained from the patient protocol of the Institute of Epidemiology, Military Medical Academy, Belgrade. Results: The total number of collected ticks, the number of nymphs and the infection rates of the nymphs were significantly higher in forests (p < 0.05) than park-forests and parks. Statistically, the ERI value was significantly higher in forests than parks of Belgrade (chi2 = 7.78, p < 0.01). In March and July, the ERI value was also significantly higher in forests, than park-forests (p < 0.01) and parks (p < 0.01). May was the month with the highest ERI value in each ecological category (forests p < 0.05; park-forests p < 0.01; parks p < 0.001). However, the number of tick bites in humans did not correlate with ERI values. Conclusion: The obtained results indicate that the risk of tick bite and human exposure to B. burgdorferi sensu lato is present at all selected localities in Belgrade. For a more comprehensive Lyme disease risk assessment the method of entomological risk index assessment should be combined with other methods, taking into consideration all tick stages and the behaviour and habits of people who may get infected B. burgdorferi sensu lato. PMID- 29320146 TI - Upper extremity function and quality of life in patients with breast cancer related lymphedema. AB - Background/Aim: Upper limb lymphedema is one of the most frequent chronic complications after breast cancer treatment with a significant impact on the upper extremity function and quality of life (QoL). The aim of this study was to estimate health-related quality of life (HRQoL) in patients with breast-cancer related lymphedema and its correlation with upper limb function and the size of edema. Methods: The cross-sectional study included 54 breast-cancer-related lymphedema patients. The quality of life was evaluated by the Short Form 36-Item Health Survey (SF-36). Upper limb function was assessed by the Quick Disability of the Arm, Shoulder and Hand questionnaire (Quick DASH). The size of lymphedema was determined by the arm circumference. Results: The higher HRQoL score was assessed for mental health (47.0 +/- 12.2) than for physical one (42.2 +/- 7.5). The highest values of SF-36 were found in the domains of Mental Health (67.7 +/- 22.9) and Social Function (70.1 +/- 23.1). The lowest scores were registered in the domains of Role Physical (46.9 +/- 39.1) and General Health (49.3 +/- 20.1). Upper extremity function statistically significantly correlated with the domains Role Physical, Bodily Pain and Physical Composite Summary and also, with the domain Role Emotional (p < 0.01). There was no statistically significant correlation between size of lymphedema and tested domains of quality of life (p > 0.05). Conclusions: Physical disability in patients with breast cancer-related lymphedema influences quality of life more than mental health. Upper limb function has a significant impact on quality of life, not only on the physical, but also on the mental component. The presence of breast-cancer-related lymphedema certainly affects upper limb function and quality of life, but in this study no significant correlation between the size of edema and quality of life was found. PMID- 29320147 TI - Upper extremity function and quality of life in patients with breast cancer related lymphedema. AB - Background/Aim: Exposed to increasing needs of users for better and faster services, more medications and innovative health technologies, managers of healthcare services in the public sector need motivation, permanent updating of information and constant personal development. The aim of this paper was to evaluate, on the basis of experienced healthcare managers, the impact of their motivation, selected character traits, managerial skills and formal education in management on healthcare facilities performances in the public sector. Methods: For the purposes of this study, 97 experienced managers from public hospitals and primary health centers in Serbia answered to 30 questions on the motivation of managers, essential skills for successful management and formal education in management in health facilities. The obtained data about their motivation, governing experience, personal skills and formal education in management were systematized and processed by the Statistical Package for Social Sciences (SPSS). Healthcare facilities performances were expressed by the healthcare facilities ranks in the official annual rankings according to the quality improvement, conducted by the Institute of Public Health of Serbia. Pearson's or Spearman's correlation coefficients were used for proving the potential impact of selected factors on performances of healthcare facilities. Results: This study confirmed the association between the healthcare facilities ranks and managers' abilities to organize the working process (t = -2.453; p = 0.018); expressed high managers' motivation (rhoS = 0.206; p = 0.048) and the length of governing experience (r = 0.198; p = 0.043). Within a 3-year follow-up, this study also confirmed a positive correlation between annual ranks of healthcare facilities and managers quality management courses (rhoS = -0.238; p = 0.017) and managers education in human resources management (rhoS = -0.234; p = 0.027). Conclusion: In addition to management education, permanent personal development and higher motivation of managers have positive influence on healthcare performances. PMID- 29320154 TI - High-Precision Photothermal Ablation Using Biocompatible Palladium Nanoparticles and Laser Scanning Microscopy. AB - Herein, we report a straightforward method for the scalable preparation of Pd nanoparticles (Pd-NPs) with reduced inherent cytotoxicity and high photothermal conversion capacity. These Pd-NPs are rapidly taken up by cells and able to kill labeled cancer cells upon short exposure to near-infrared (NIR) light. Following cell treatment with Pd-NPs, ablated areas were patterned with high precision by laser scanning microscopy, allowing one to perform cell migration assays with unprecedented accuracy. Using coherent Raman microscopy, cells containing Pd-NPs were simultaneously ablated and imaged. This novel methodology was combined with intravital imaging to mediate microablation of cancerous tissue in tumor xenografts in mice. PMID- 29320155 TI - Transparent and Waterproof Ionic Liquid-Based Fibers for Highly Durable Multifunctional Sensors and Strain-Insensitive Stretchable Conductors. AB - Ionic liquids (ILs) are regarded as ideal components in the next generation of strain sensors because their ultralow modulus can commendably circumvent or manage the mechanical mismatch in traditional strain sensors. In addition to strain sensors, stretchable conductors with a strain-insensitive conductance are also indispensable in artificial systems for connecting and transporting electrons, similar to the function of blood vessels in the human body. In this work, two types of ILs-based conductive fibers were fabricated by developing hollow fibers with specific microscale channels, which were then filled with ILs. Typically, the ILs-based fiber with straight microchannels exhibited a high strain sensitivity and simultaneously rapid responses to strain, pressure, and temperature. The other ILs-based fiber with helical microchannels exhibited a good strain-isolate conductance under strain. Due to the high transparency of ILs along with the sealing process, the as-prepared ILs-based fibers are both highly transparent and waterproof. More importantly, owing to the low modulus of ILs and the core-shell structure, both conductive fiber prototypes demonstrated a high durability (>10 000 times) and a long-term stability (>4 months). Ultimately, the ILs-based fibrous sensors were successfully woven into gloves, flaunting the ability to detect human breathing patterns, sign language, hand gestures, and arm motions. The ILs-based strain-insensitive fibers were successfully applied in stretchable wires as well. PMID- 29320156 TI - Highly Stable Copper(I)-Based Metal-Organic Framework Assembled with Resorcin[4]arene and Polyoxometalate for Efficient Heterogeneous Catalysis of Azide-Alkyne "Click" Reaction. AB - A new highly stable copper(I)-based metal-organic framework (MOF), namely, [CuI4(SiW12O40)(L)].6H2O.2DMF (1), was synthesized by incorporating Keggin-type polyoxometalate (POM) anions and a functionalized wheel-like resorcin[4]arene based ligand (L) under sovothermal condition. 1 exhibits a charming 3D supramolecular architecture sandwiched by the POM anions. Noticeably, 1 has exceptional chemical stability, especially in organic solvents or aqueous solutions with a wide range of pH values. Considering the catalytically active Cu(I) sites in 1, the azide-alkyne cycloaddition (AAC) reaction was studied by employing 1 as the heterogeneous catalyst. Most strikingly, 1 exhibits excellent catalytic activity as well as recyclability for the AAC reaction. PMID- 29320157 TI - Superhydrophobic Microporous Substrates via Photocuring: Coupling Optical Pattern Formation to Phase Separation for Process-Tunable Pore Architectures. AB - We present a new approach to synthesize microporous surfaces through the combination of photopolymerization-induced phase separation and light pattern formation in photopolymer-solvent mixtures. The mixtures are irradiated with a wide-area light pattern consisting of high and low intensity regions. This light pattern undergoes self-focusing and filamentation, thereby preserving its spatial profile through the mixture. Over the course of irradiation, the mixture undergoes phase separation, with the polymer and solvent located in the bright and dark regions of the light profile, respectively, to produce a binary phase morphology with a congruent arrangement as the optical pattern. A congruently arranged microporous structure is attained upon solvent removal. The microporous surface structure can be varied by changing the irradiating light profile via photomask design. The porous architecture can be further tuned through the relative weight fractions of photopolymer and solvent in the mixture, resulting in porosities ranging from those with discrete and uniform pore sizes to hierarchical pore distributions. All surfaces become superhydrophobic (water contact angles >150 degrees ) when spray-coated with a thin layer of polytetrafluoroethylene nanoparticles. The water contact angles can be enhanced by changing the surface porosity via the processing conditions. This is a scalable and tunable approach to precisely control microporous surface structure in thin films to create functional surfaces and antiwetting coatings. PMID- 29320158 TI - Coordination-Mediated Synthesis of Purification-Free Bivalent 99mTc-Labeled Probes for in Vivo Imaging of Saturable System. AB - In the synthesis of technetium-99m (99mTc) labeled target-specific ligands, the presence of a large excess of unlabeled ligands over 99mTc in the injectate hinders target accumulation of 99mTc-labeled ligands by competing for target molecules. To circumvent the problem, we recently developed a concept of the metal coordination-mediated multivalency, and proved the concept with a 99mTc labeled trivalent compound [99mTc(CO)3(CN-RGD)3]+. In this study, D-penicillamine (Pen) was selected as a chelating molecule and a cyclic RGDfK peptide was conjugated to Pen via a hexanoic linkage (Pen-Ahx-c(RGDfK)). 99mTc complexation reaction, and the stability, integrin alphavbeta3 binding affinity, and biodistribution of the 99mTc-labeled probe were investigated to evaluate the applicability of the concept to bivalent probes. 99mTc-[Pen-Ahx-c(RGDfK)]2 was obtained over 95% radiochemical yields under low Pen-Ahx-c(RGDfK) concentration (50 MUM). 99mTc-[Pen-Ahx-c(RGDfK)]2 showed approximately 10-times higher integrin alphavbeta3 binding affinity than the monovalent compounds, Pen-Ahx-c(RGDfK) and c(RGDyV). In biodistribution studies, the tumor accumulation of 99mTc-[Pen-Ahx c(RGDfK)]2 was decreased to 77% and 43% of HPLC-purified (Pen-Ahx-c(RGDfK)-free) 99mTc-[Pen-Ahx-c(RGDfK)]2 by the presence of 5 nmol of unlabeled Pen-Ahx-c(RGDfK) and Re-[Pen-Ahx-c(RGDfK)]2, respectively. 99mTc-[Pen-Ahx-c(RGDfK)]2 provided tumor image without removing unlabeled ligand, while a 99mTc-labeled monovalent probe prepared from a monovalent ligand could not. These findings indicate the availability of the design concept to prepare 99mTc-labeled bivalent probes with a variety of 99mTc core and other metallic radionuclides of clinical relevance. PMID- 29320159 TI - Bioinspired Nanostructured Surfaces for On-Demand Bubble Transportation. AB - The maneuver of small bubbles in a programmed way will advance numerous processes, including gas evolution reaction and aeration. Unlike in-air droplets, rapidly rising bubbles in liquid medium can hardly be steered through interaction with solid substrates, causing difficulties in maneuvering bubbles. We pattern and lubricate nanoporous substrates with regions of contrasting wettability that is similar to the back of Namib desert beetles and subsequently immerse the lubricated surface underwater to spontaneously form spatially patterned Nepenthes inspired slippery surfaces after the dewetting of lubricants. As a result, bubbles are confined on lubricant-infused surfaces, with their high mobility well preserved. The interfacial states of attached bubbles are analyzed, and their dynamic sliding velocities are quantified. Using the lubricated patterned surfaces, we further demonstrate the predefined motion of bubbles driven by buoyancy at a small tiling angle, as well as a self-propulsion of bubbles driven by surface tension force at a tilting angle of 0 degrees , respectively. The spatially lubricated surfaces simplify gas handling in liquid medium and have potential applications in fields where bubble handling is crucial. PMID- 29320160 TI - Efforts Aimed To Reduce Attrition in Antimalarial Drug Discovery: A Systematic Evaluation of the Current Antimalarial Targets Portfolio. AB - Malaria remains a major global health problem. In 2015 alone, more than 200 million cases of malaria were reported, and more than 400,000 deaths occurred. Since 2010, emerging resistance to current front-line ACTs (artemisinin combination therapies) has been detected in endemic countries. Therefore, there is an urgency for new therapies based on novel modes of action, able to relieve symptoms as fast as the artemisinins and/or block malaria transmission. During the past few years, the antimalarial community has focused their efforts on phenotypic screening as a pragmatic approach to identify new hits. Optimization efforts on several chemical series have been successful, and clinical candidates have been identified. In addition, recent advances in genetics and proteomics have led to the target deconvolution of phenotypic clinical candidates. New mechanisms of action will also be critical to overcome resistance and reduce attrition. Therefore, a complementary strategy focused on identifying well validated targets to start hit identification programs is essential to reinforce the clinical pipeline. Leveraging published data, we have assessed the status quo of the current antimalarial target portfolio with a focus on the blood stage clinical disease. From an extensive list of reported Plasmodium targets, we have defined triage criteria. These criteria consider genetic, pharmacological, and chemical validation, as well as tractability/doability, and safety implications. These criteria have provided a quantitative score that has led us to prioritize those targets with the highest probability to deliver successful and differentiated new drugs. PMID- 29320162 TI - Electrical Characterization of Discrete Defects and Impact of Defect Density on Photoluminescence in Monolayer WS2. AB - Transition-metal dichalcogenides (TMDs) are an exciting class of 2D materials that exhibit many promising electronic and optoelectronic properties with potential for future device applications. The properties of TMDs are expected to be strongly influenced by a variety of defects which result from growth procedures and/or fabrication. Despite the importance of understanding defect related phenomena, there remains a need for quantitative nanometer-scale characterization of defects over large areas in order to understand the relationship between defects and observed properties, such as photoluminescence (PL) and electrical conductivity. In this work, we present conductive atomic force microscopy measurements which reveal nanometer-scale electronically active defects in chemical vapor deposition-grown WS2 monolayers with defect density varying from 2.3 * 1010 cm-2 to 4.5 * 1011 cm-2. Comparing these defect density measurements with PL measurements across large areas (>20 MUm distances) reveals a strong inverse relationship between WS2 PL intensity and defect density. We propose a model in which the observed electronically active defects serve as nonradiative recombination centers and obtain good agreement between the experiments and model. PMID- 29320161 TI - Human DNA Repair Genes Possess Potential G-Quadruplex Sequences in Their Promoters and 5'-Untranslated Regions. AB - The cellular response to oxidative stress includes transcriptional changes, particularly for genes involved in DNA repair. Recently, our laboratory demonstrated that oxidation of 2'-deoxyguanosine (G) to 8-oxo-7,8-dihydro-2' deoxyguanosine (OG) in G-rich potential G-quadruplex sequences (PQSs) in gene promoters impacts the level of gene expression up or down depending on the position of the PQS in the promoter. In the present report, bioinformatic analysis found that the 390 human DNA repair genes in the genome ontology initiative harbor 2936 PQSs in their promoters and 5'-untranslated regions (5' UTRs). The average density of PQSs in human DNA repair genes was found to be nearly 2-fold greater than the average density of PQSs in all coding and noncoding human genes (7.5 vs 4.3 per gene). The distribution of the PQSs in the DNA repair genes on the nontranscribed (coding) vs transcribed strands reflects that of PQSs in all human genes. Next, literature data were interrogated to select 30 PQSs to catalog their ability to adopt G-quadruplex (G4) folds in vitro using five different experimental tests. The G4 characterization experiments concluded that 26 of the 30 sequences could adopt G4 topologies in solution. Last, four PQSs were synthesized into the promoter of a luciferase plasmid and cotransfected with the G4-specific ligands pyridostatin, Phen-DC3, or BRACO-19 in human cells to determine whether the PQSs could adopt G4 folds. The cell studies identified changes in luciferase expression when the G4 ligands were present, and the magnitude of the expression changes dependent on the PQS and the coding vs template strand on which the sequence resided. Our studies demonstrate PQSs exist at a high density in human DNA repair gene promoters and a subset of the identified sequences may fold in vitro and in vivo. PMID- 29320163 TI - Reaction Intermediates of Nitric Oxide Synthase from Deinococcus radiodurans as Revealed by Pulse Radiolysis: Evidence for Intramolecular Electron Transfer from Biopterin to FeII-O2 Complex. AB - Nitric oxide synthase (NOS) is a cytochrome P450-type mono-oxygenase that catalyzes the oxidation of l-arginine (Arg) to nitric oxide (NO) through a reaction intermediate N-hydroxy-l-arginine (NHA). The mechanism underlying the reaction catalyzed by NOS from Deinococcus radiodurans was investigated using pulse radiolysis. Radiolytically generated hydrated electrons reduced the heme iron of NOS within 2 MUs. Subsequently, ferrous heme reacted with O2 to form a ferrous-dioxygen intermediate with a second-order rate constant of 2.8 * 108 M-1 s-1. In the tetrahydrofolate (H4F)-bound enzyme, the ferrous-dioxygen intermediate was found to decay an another intermediate with a first-order rate constant of 2.2 * 103 s-1. The spectrum of the intermediate featured an absorption maximum at 440 nm and an absorption minimum at 390 nm. In the absence of H4F, this step did not proceed, suggesting that H4F was reduced with the ferrous-dioxygen intermediate to form a second intermediate. The intermediate further converted to the original ferric form with a first-order rate constant of 4 s-1. A similar intermediate could be detected after pulse radiolysis in the presence of NHA, although the intermediate decayed more slowly (0.5 s-1). These data suggested that a common catalytically active intermediate involved in the substrate oxidation of both Arg and NHA may be formed during catalysis. In addition, we investigated the solvent isotope effects on the kinetics of the intermediate after pulse radiolysis. Our experiments revealed dramatic kinetic solvent isotope effects on the conversion of the intermediate to the ferric form, of 10.5 and 2.5 for Arg and NHA, respectively, whereas the faster phases were not affected. These data suggest that the proton transfer in DrNOS is the rate limiting reaction of the intermediate with the substrates. PMID- 29320164 TI - Mechanistic Investigations of Lysine-Tryptophan Cross-Link Formation Catalyzed by Streptococcal Radical S-Adenosylmethionine Enzymes. AB - Streptide is a ribosomally synthesized and post-translationally modified peptide with a unique cyclization motif consisting of an intramolecular lysine-tryptophan cross-link. Three radical S-adenosylmethionine enzymes, StrB, AgaB, and SuiB from different species of Streptococcus, have been shown to install this modification onto their respective precursor peptides in a leader-dependent fashion. Herein, we conduct detailed investigations to differentiate among several plausible mechanistic proposals, specifically addressing radical versus electrophilic addition to the indole during cross-link formation, the role of substrate side chains in binding in the enzyme active site, and the identity of the catalytic base in the reaction cycle. Our results are consistent with a radical electrophilic aromatic substitution mechanism for the key carbon-carbon bond forming step. They also elaborate on other mechanistic features that underpin this unique and synthetically challenging post-translational modification. PMID- 29320165 TI - Solution NMR Structure and Backbone Dynamics of Partially Disordered Arabidopsis thaliana Phloem Protein 16-1, a Putative mRNA Transporter. AB - Although RNA-binding proteins in plant phloem are believed to perform long distance systemic transport of RNA in the phloem conduit, the structure of none of them is known. Arabidopsis thaliana phloem protein 16-1 (AtPP16-1) is such a putative mRNA transporter whose structure and backbone dynamics have been studied at pH 4.1 and 25 degrees C by high-resolution nuclear magnetic resonance spectroscopy. Results obtained using basic optical spectroscopic tools show that the protein is unstable with little secondary structure near the physiological pH of the phloem sap. Fluorescence-monitored titrations reveal that AtPP16-1 binds not only A. thaliana RNA (Kdiss ~ 67 nM) but also sheared DNA and model dodecamer DNA, though the affinity for DNA is ~15-fold lower. In the solution structure of the protein, secondary structural elements are formed by residues 3-9 (beta1), 56 62 (beta2), 133-135 (beta3), and 96-110 (alpha-helix). Most of the rest of the chain segments are disordered. The N-terminally disordered regions (residues 10 55) form a small lobe, which conjoins the rest of the molecule via a deep and large irregular cleft that could have functional implications. The average order parameter extracted by model-free analysis of 15N relaxation and {1H}-15N heteronuclear NOE data is 0.66, suggesting less restricted backbone motion. The average conformational entropy of the backbone NH vectors is -0.31 cal mol-1 K-1. These results also suggest structural disorder in AtPP16-1. PMID- 29320166 TI - Mass Spectrometric Quantitation of Tubulin Acetylation from Pepsin-Digested Rat Brain Tissue Using a Novel Stable-Isotope Standard and Capture by Anti-Peptide Antibody (SISCAPA) Method. AB - Acetylation of alpha-tubulin at Lys-40 is a potential biomarker for cognitive deficits in various neurological disorders. However, this key post-translational modification (PTM) has not been previously studied with mass spectrometry, due to the inadequate distribution of tryptic cleavage sites. Following peptic digestion, a surrogate sequence containing this key PTM site was identified and was found to be stable and quantitatively reproducible. A highly sensitive and specific SISCAPA-LC-MS method for quantitating rat brain tubulin acetylation was developed, validated, and applied, and only required a small amount of tissue (2.2 mg). This workflow includes peptic digestion, stable-isotope dilution, capture with antiacetylated peptide antibody bound on protein G beads, and quantitation using LC-MS. The method allowed a lower limit of quantitation at 2.50 pmol/mg and provided a linear range of 2.50-62.50 pmol/mg. Selectivity, intra and interday precision and accuracy were also validated. This method has been successfully applied in a preclinical study of organophosphate neurotoxicity, and we found that chronic exposure to chlorpyrifos led to a significant and persistent inhibition of brain tubulin acetylation. PMID- 29320167 TI - An Ultrastable Heterobimetallic Uranium(IV)/Vanadium(III) Solid Compound Protected by a Redox-Active Phosphite Ligand: Crystal Structure, Oxidative Dissolution, and First-Principles Simulation. AB - The first heterobimetallic uranium(IV)/vanadium(III) phosphite compound, Na2UV2(HPO3)6 (denoted as UVP), was synthesized via an in situ redox-active hydrothermal reaction. It exhibits superior hydrolytic and antioxidant stability compared to the majority of structures containing low-valent uranium or vanadium, further elucidated by first-principles simulations, and therefore shows potential applications in nuclear waste management. PMID- 29320168 TI - Linking Natural Oil Seeps from the Gulf of Mexico to Their Origin by Use of Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. AB - We report chemical characterization of natural oil seeps from the Gulf of Mexico by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) and Gas Chromatography/Atmospheric Pressure Chemical Ionization Mass Spectrometry (GC/APCI-MS), to highlight how FT-ICR MS can also be employed as a means to determine petroleum connectivity, in addition to traditional GC/MS techniques. The source of petroleum is the Green Canyon (GC) 600 lease block in the Gulf of Mexico. Within GC600, two natural oil seepage zones, Mega Plume and Birthday Candles, continuously release hydrocarbons and develop persistent oil slicks at the sea surface above them. We chemically trace the petroleum from the surface oil slicks to the Mega Plume seep itself, and further to a petroleum reservoir 5 km away in lease block GC645 (Holstein Reservoir). We establish the connectivity between oil samples and confirm a common geological origin for the oil slicks, oil seep, and reservoir oil. The ratios of seven common petroleum biomarkers detected by GC/APCI-MS display clear similarity between the GC600 and GC645 samples, as well as a distinct difference from another reservoir oil collected ~300 km away (Macondo crude oil from MC252 lease block). FT-ICR MS and principal component analysis (PCA) demonstrate further similarities between the GC600 and GC645 samples that distinctly differ from MC252. A common geographical origin is postulated for the GC600/GC645 samples, with petroleum migrating from the GC645 reservoir to the oil seeps found in GC600 and up through the water column to the sea surface as an oil slick. PMID- 29320169 TI - Short-, Medium-, and Long-Chain Chlorinated Paraffins in Wildlife from Paddy Fields in the Yangtze River Delta. AB - Short-chain chlorinated paraffins (SCCPs) were added to Annex A of the Stockholm Convention on Persistent Organic Pollutants in April, 2017. As a consequence of this regulation, increasing production and usage of alternatives, such as medium- and long-chain chlorinated paraffins (MCCPs and LCCPs, respectively), is expected. Little is known about the environmental fate and behavior of MCCPs and LCCPs. In the present study, SCCPs, MCCPs, and LCCPs were analyzed in nine wildlife species from paddy fields in the Yangtze River Delta, China, using atmospheric pressure chemical ionization-quadrupole time-of-flight mass spectrometry. SCCPs, MCCPs, and LCCPs were detected in all samples at concentrations ranging from <91-43 000, 96-33 000, and 14-10 000 ng/g lipid, respectively. Most species contained primarily MCCPs (on average 44%), with the exception of collared scops owl and common cuckoo, in which SCCPs (43%) accumulated to a significantly (i.e., p < 0.05) greater extent than MCCPs (40%). Cl6 groups were dominant in most species except for yellow weasel and short tailed mamushi, which contained primarily Cl7 groups. Principal components analysis, together with CP concentrations and carbon stable isotope analysis showed that habitat and feeding habits were key factors driving CP accumulation and congener group patterns in wildlife. This is the first report of LCCP exposure in wildlife and highlights the need for data on risks associated with CP usage. PMID- 29320170 TI - Synthesis and Characterization of the Most Active Copper ATRP Catalyst Based on Tris[(4-dimethylaminopyridyl)methyl]amine. AB - The tris[(4-dimethylaminopyridyl)methyl]amine (TPMANMe2) as a ligand for copper catalyzed atom transfer radical polymerization (ATRP) is reported. In solution, the [CuI(TPMANMe2)Br] complex shows fluxionality by variable-temperature NMR, indicating rapid ligand exchange. In the solid state, the [CuII(TPMANMe2)Br][Br] complex exhibits a slightly distorted trigonal bipyramidal geometry (tau = 0.89). The UV-vis spectrum of [CuII(TPMANMe2)Br]+ salts is similar to those of other pyridine-based ATRP catalysts. Electrochemical studies of [Cu(TPMANMe2)]2+ and [Cu(TPMANMe2)Br]+ showed highly negative redox potentials (E1/2 = -302 and -554 mV vs SCE, respectively), suggesting unprecedented ATRP catalytic activity. Cyclic voltammetry (CV) in the presence of methyl 2-bromopropionate (MBrP; acrylate mimic) was used to determine activation rate constant ka = 1.1 * 106 M-1 s-1, confirming the extremely high catalyst reactivity. In the presence of the more active ethyl alpha-bromoisobutyrate (EBiB; methacrylate mimic), total catalysis was observed and an activation rate constant ka = 7.2 * 106 M-1 s-1 was calculated with values of KATRP ~ 1. ATRP of methyl acrylate showed a well controlled polymerization using as little as 10 ppm of catalyst relative to monomer, while side reactions such as CuI-catalyzed radical termination (CRT) could be suppressed due to the low concentration of L/CuI at a steady state. PMID- 29320171 TI - Coordination-Driven Self-Assembly of Heterotrimetallic Barrel and Bimetallic Cages Using a Cobalt Sandwich-Based Tetratopic Donor. AB - Three-dimensional molecular architectures self-assembled with tripodal and tetratopic donors are valuable because of their encapsulation properties. Here, we present Co(I)-Fe(II)-Pd(II) heterotrimetallic trifacial barrel 1, which was self-assembled using a newly synthesized tetratopic donor [CpCo(CbR4)] [L; Cp = cyclopentadienyl, Cb = cyclobudiene, and R = 4-(4-pyridylphenyl)] and a 90 degrees acceptor [ cis-(dppf)Pd(OTf)2] (A1; dppf = (diphenylphosphino)ferrocene and OTf = CF3SO3-). The heterotrimetallic barrel 1 exhibited selective 1:1 interaction with a N, N'-dimethyl-1,4,5,8-naphthalenetetracarboxylic diimide guest, as revealed by 1H NMR analysis. The self-assembly of donor L with two other Ru(II)-based 180 degrees acceptors [( p-cymene)2Ru2(OO?OO)(OTf)2] [OO?OO = 6,11-dioxido-5,12-naphthacenedione (A2) and oxalate (A3)] resulted in tetragonal prismatic cages. Self-assembly using the longer acceptor A2 provided rare isomers of a tetragonal-prismatic cage by varying the orientation of the cyclopentadienyl moiety out-out (2a) or out-in (2b) of the cavity, whereas self-assembly using the shorter acceptor A3 selectively resulted in the tetragonal-prismatic cage 3. The three-dimensional molecular architectures 1-3 were characterized by combined spectroscopic and elemental analyses. The structures of molecular barrel 1 and prismatic cage 3 were elucidated by single-crystal X-ray analysis. PMID- 29320172 TI - Acetonitrile Adduct [MoReCp(MU-H)(MU-PCy2)(CO)5(NCMe)]: A Surrogate of an Unsaturated Heterometallic Hydride Complex. AB - The title compound was prepared upon irradiation of acetonitrile solutions of the readily available hexacarbonyl [MoReCp(MU-H)(MU-PCy2)(CO)6]. The acetonitrile ligand in this compound could be replaced easily by donor molecules or displaced upon two-electron reduction. In most cases, the substitution step was followed by additional processes such as insertion into the M-H bonds, E-H bond cleavage, H2 elimination, and other transformations. PMID- 29320173 TI - A Spectroscopic Study on the Nitrogen Electrochemical Reduction Reaction on Gold and Platinum Surfaces. AB - The electrochemical reduction of nitrogen to ammonia on Au-based catalysts showed a reasonably high Coulombic efficiency. The pathway of this promising reaction, however, is not clear partially due to the lack of information on reaction intermediates. Herein, surface-enhanced infrared absorption spectroscopy (SEIRAS) was employed to study the reaction mechanisms of nitrogen reduction on an Au thin film for the first time. During the nitrogen reduction, the N2Hy species was detected with bands at 1453 (H-N-H bending), 1298 (-NH2 wagging), and 1109 cm-1 (N-N stretching) at potentials below 0 V against reversible hydrogen electrode. This result indicates that the nitrogen reduction reaction on Au surfaces follows an associative mechanism, and the N=N bond in N2 tends to break simultaneously with the hydrogen addition. By comparison, no absorption band associated with N was observed on Pt surfaces under the same reaction condition. This result is consistent with the low efficiency of nitrogen reduction on Pt due to the much faster kinetics of hydrogen evolution reaction. PMID- 29320174 TI - Comprehensive Analysis of Changes in Crude Oil Chemical Composition during Biosouring and Treatments. AB - Biosouring in crude oil reservoirs by sulfate-reducing microbial communities (SRCs) results in hydrogen sulfide production, precipitation of metal sulfide complexes, increased industrial costs of petroleum production, and exposure issues for personnel. Potential treatment strategies include nitrate or perchlorate injections into reservoirs. Gas chromatography with vacuum ultraviolet ionization and high-resolution time-of-flight mass spectrometry (GC VUV-HTOF) and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) combined with electrospray ionization were applied in this study to identify hydrocarbon degradation patterns and product formations in crude oil samples from biosoured, nitrate-treated, and perchlorate-treated bioreactor column experiments. Crude oil hydrocarbons were selectively transformed based on molecular weight and compound class in the biosouring control environment. Both the nitrate and the perchlorate treatments significantly reduced sulfide production; however, the nitrate treatment enhanced crude oil biotransformation, while the perchlorate treatment inhibited crude oil biotransformation. Nitrogen- and oxygen-containing biodegradation products, particularly with chemical formulas consistent with monocarboxylic and dicarboxylic acids containing 10-60 carbon atoms, were observed in the oil samples from both the souring control and the nitrate-treated columns but were not observed in the oil samples from the perchlorate-treated column. These results demonstrate that hydrocarbon degradation and product formation of crude oil can span hydrocarbon isomers and molecular weights up to C60 and double-bond equivalent classes ranging from straight-chain alkanes to polycyclic aromatic hydrocarbons. Our results also strongly suggest that perchlorate injections may provide a preferred strategy to treat biosouring through inhibition of biotransformation. PMID- 29320175 TI - Isolation of R6Si6 Dianion: A Bridged Tricyclic Isomer of Dianionic Hexasilabenzene. AB - A new strategy for the highly selective synthesis of tricyclo[2,2,0,02,5]hexasilanes R6Si6X2 (R = 2,4,6-Me3C6H2; X = H, Cl) and a bridged tricyclic R6Si6 dianion starting from the tetrachlorotrisilane RCl2SiSi(H)RSiCl2R (1) was described. Reduction of 1 with lithium naphthalene afforded tricyclohexasilane R6Si6H2 (2), which was halogenated to give the dichloride R6Si6Cl2 (3). Reduction of 3 with four equivalents of potassium graphite in the presence of 18-crown-6 afforded the first R6Si6 dianion (5) paired with [K(18-crown-6)]+2 counterions. The dianion 5 could act as a two electron reductant toward transition metal halides and a nucleophile toward chlorosilanes. These reactions allowed the efficient and selective access to three types of silicon cages. The structures of the representative cages were confirmed by X-ray diffraction studies. Density functional theory calculations on 5 indicate that the negative charges are localized mainly on the anionic silicon atoms. PMID- 29320177 TI - Holomorphic Hartree-Fock Theory: The Nature of Two-Electron Problems. AB - We explore the existence and behavior of holomorphic restricted Hartree-Fock (h RHF) solutions for two-electron problems. Through algebraic geometry, the exact number of solutions with n basis functions is rigorously identified as 1/2(3n - 1), proving that states must exist for all molecular geometries. A detailed study on the h-RHF states of HZ (STO-3G) then demonstrates both the conservation of holomorphic solutions as geometry or atomic charges are varied and the emergence of complex h-RHF solutions at coalescence points. Using catastrophe theory, the nature of these coalescence points is described, highlighting the influence of molecular symmetry. The h-RHF states of HHeH2+ and HHeH (STO-3G) are then compared, illustrating the isomorphism between systems with two electrons and two electron holes. Finally, we explore the h-RHF states of ethene (STO-3G) by considering the pi electrons as a two-electron problem and employ NOCI to identify a crossing of the lowest energy singlet and triplet states at the perpendicular geometry. PMID- 29320176 TI - Discovery of Bisubstrate Inhibitors of Nicotinamide N-Methyltransferase (NNMT). AB - Nicotinamide N-methyltransferase (NNMT) catalyzes the N-methylation of pyridine containing compounds using the cofactor S-5'-adenosyl-l-methionine (SAM) as the methyl group donor. Through the regulation of the levels of its substrates, cofactor, and products, NNMT plays an important role in physiology and pathophysiology. Overexpression of NNMT has been implicated in various human diseases. Potent and selective small-molecule NNMT inhibitors are valuable chemical tools for testing biological and therapeutic hypotheses. However, very few NNMT inhibitors have been reported. Here, we describe the discovery of a bisubstrate NNMT inhibitor MS2734 (6) and characterization of this inhibitor in biochemical, biophysical, kinetic, and structural studies. Importantly, we obtained the first crystal structure of human NNMT in complex with a small molecule inhibitor. The structure of the NNMT-6 complex has unambiguously demonstrated that 6 occupied both substrate and cofactor binding sites. The findings paved the way for developing more potent and selective NNMT inhibitors in the future. PMID- 29320178 TI - Novel K-Ras G12C Switch-II Covalent Binders Destabilize Ras and Accelerate Nucleotide Exchange. AB - The success of targeted covalent inhibitors in the global pharmaceutical industry has led to a resurgence of covalent drug discovery. However, covalent inhibitor design for flexible binding sites remains a difficult task due to a lack of methodological development. Here, we compared covalent docking to empirical electrophile screening against the highly dynamic target K-RasG12C. While the overall hit rate of both methods was comparable, we were able to rapidly progress a docking hit to a potent irreversible covalent binder that modifies the inactive, GDP-bound state of K-RasG12C. Hydrogen-deuterium exchange mass spectrometry was used to probe the protein dynamics of compound binding to the switch-II pocket and subsequent destabilization of the nucleotide-binding region. SOS-mediated nucleotide exchange assays showed that, contrary to prior switch-II pocket inhibitors, these new compounds appear to accelerate nucleotide exchange. This study highlights the efficiency of covalent docking as a tool for the discovery of chemically novel hits against challenging targets. PMID- 29320179 TI - Trifluoromethyl Vinyl Sulfide: A Building Block for the Synthesis of CF3S Containing Isoxazolidines. AB - Trifluoromethyl vinyl sulfide, a potential building block for pharmaceutically and agrochemically relevant products, is prepared and used for the first time in high-pressure-mediated 1,3-dipolar cycloaddition reactions with nitrones to synthesize (trifluoromethyl)sulfanyl isoxazolidines. PMID- 29320180 TI - Inner and Outer Recursive Neural Networks for Chemoinformatics Applications. AB - Deep learning methods applied to problems in chemoinformatics often require the use of recursive neural networks to handle data with graphical structure and variable size. We present a useful classification of recursive neural network approaches into two classes, the inner and outer approach. The inner approach uses recursion inside the underlying graph, to essentially "crawl" the edges of the graph, while the outer approach uses recursion outside the underlying graph, to aggregate information over progressively longer distances in an orthogonal direction. We illustrate the inner and outer approaches on several examples. More importantly, we provide open-source implementations [available at www.github.com/Chemoinformatics/InnerOuterRNN and cdb.ics.uci.edu ] for both approaches in Tensorflow which can be used in combination with training data to produce efficient models for predicting the physical, chemical, and biological properties of small molecules. PMID- 29320181 TI - Stereospecific Stille Cross-Couplings Using Mn(II)Cl2. AB - Cross-coupling reactions are a staple in organic synthesis, especially for C-C bond formation with sp- and sp2-carbon electrophiles. In recent years, the range of accessible C-C bonds has been extended to stereogenic centers which expedites access to greater molecular complexity. However, these reactions predominantly depend upon late transition metal (LTM) catalysts whose cost, toxicity, and/or environmental impact have come under increasing scrutiny and governmental regulation. Here, we report Mn(II)Cl2 complexes alone, or with assistance from copper, catalyze the stereospecific cross-coupling of alpha-alkoxyalkylstannanes with organic electrophiles with complete retention of configuration. PMID- 29320182 TI - Reconstruction of HMBC Correlation Networks: A Novel NMR-Based Contribution to Metabolite Mixture Analysis. AB - A new in silico method is introduced for the dereplication of natural metabolite mixtures based on HMBC and HSQC spectra that inform about short-range and long range H-C correlations occurring in the carbon skeleton of individual chemical entities. Starting from the HMBC spectrum of a metabolite mixture, an algorithm was developed in order to recover individualized HMBC footprints of the mixture constituents. The collected H-C correlations are represented by a network of NMR peaks connected to each other when sharing either a 1H or 13C chemical shift value. The network obtained is then divided into clusters using a community detection algorithm, and finally each cluster is tentatively assigned to a molecular structure by means of a NMR chemical shift database containing the theoretical HMBC and HSQC correlation data of a range of natural metabolites. The proof of principle of this method is demonstrated on a model mixture of 3 known natural compounds and then on a real-life bark extract obtained from the common spruce (Picea abies L.). PMID- 29320183 TI - Six Trikentrin-like Cyclopentanoindoles from Trikentrion flabelliforme. Absolute Structural Assignment by NMR and ECD. AB - Six new cyclopenta[g]indoles were isolated from a West Australian sponge, Trikentrion flabelliforme Hentschel, 1912, and their structures elucidated by integrated spectroscopic analysis. The compounds are analogues of previously described trikentrins, herbindoles, and trikentramides from related Axinellid sponges. The assignment of absolute configuration of the new compounds was carried out largely by comparative analysis of specific rotation, calculated and measured ECD, and exploiting van't Hoff's principle of optical superposition. Five of the new compounds were chemically interconverted to establish their stereochemical relationships, leading to a simple chiroptical mnemonic for assignment of the this family of chiral indoles. The first biosynthetic hypothesis is advanced to explain the origin of the trikentrin-herbinole family and proposes a pyrrole-carboxylic thioester-initiated polyketide synthase mechanism. PMID- 29320184 TI - Unusual Rearrangement of an N-Donor-Functionalized N-Heterocyclic Carbene Ligand on Group 8 Metals. AB - We report an unexpected rearrangement of a deprotonated picolyl-functionalized N heterocyclic carbene (NHC) ligand from N,C-chelate to N,N-chelate in three-legged piano-stool Fe(II) and Ru(II) complexes. The reaction mechanism has been explored for one of the Fe(II) complexes. Experimental and computational studies suggest an unusual intermediate featuring a four-membered chelate ring, where the NHC and the alpha-carbon of one of the N-substituents coordinate to the Fe(II) center. A possible Fe-alkylidene intermediate has also been predicted by computations. PMID- 29320185 TI - Force Field Benchmark of the TraPPE_UA for Polar Liquids: Density, Heat of Vaporization, Dielectric Constant, Surface Tension, Volumetric Expansion Coefficient, and Isothermal Compressibility. AB - The transferable potential for a phase equilibria force field in its united-atom version, TraPPE_UA, is evaluated for 41 polar liquids that include alcohols, thiols, ethers, sulfides, aldehydes, ketones, and esters to determine its ability to reproduce experimental properties that were not included in the parametrization procedure. The intermolecular force field parameters for pure components were fit to reproduce experimental boiling temperature, vapor-liquid coexisting densities, and critical point (temperature, density, and pressure) using Monte Carlo simulations in different ensembles. The properties calculated in this work are liquid density, heat of vaporization, dielectric constant, surface tension, volumetric expansion coefficient, and isothermal compressibility. Molecular dynamics simulations were performed in the gas and liquid phases, and also at the liquid-vapor interface. We found that relative error between calculated and experimental data is 1.2% for density, 6% for heat of vaporization, and 6.2% for surface tension, in good agreement with the experimental data. The dielectric constant is systematically underestimated, and the relative error is 37%. Evaluating the performance of the force field to reproduce the volumetric expansion coefficient and isothermal compressibility requires more experimental data. PMID- 29320186 TI - Lewis Acid Assisted Electrophilic Fluorine-Catalyzed Pinacol Rearrangement of Hydrobenzoin Substrates: One-Pot Synthesis of (+/-)-Latifine and (+/-) Cherylline. AB - A microwave-irradiated solvent-free pinacol rearrangement of hydrobenzoin substrates catalyzed by a combination of N-fluorobenzenesulfonimide and FeCl3.6H2O was developed. Its selectivity was first investigated by density functional theory (DFT) calculations. Then the functional group tolerance was examined by synthesizing a series of substrates designed based on the insight provided by the DFT calculations. The application of the methodology was demonstrated by the efficient one-pot synthesis of (+/-)-latifine and (+/-) cherylline, both are 4-aryltetrahydroisoquinoline alkaloids isolated from Amaryllidacecae plants. PMID- 29320187 TI - DFT Modeling of Cross-Linked Polyethylene: Role of Gold Atoms and Dispersion Interactions. AB - Using DFT modeling, we analyze the concerted action of gold atoms and dispersion interactions in cross-linked polyethylene. Our model consists of two oligomer chains (PEn) with 7, 11, 15, 19, or 23 carbon atoms in each oligomer cross-linked with one to three Au atoms through C-Au-C bonds. In structures with a single gold atom the C-Au-C bond is located in the central position of the oligomer. Binding energies (BEs) with respect to two oligomer radical fragments and Au are as high as 362-489 kJ/mol depending on the length of the oligomer chain. When the dispersion contribution in PEn-Au-PEn oligomers is omitted, BE is almost independent of the number of carbon atoms, lying between 293 and 296 kJ/mol. The dispersion energy contributions to BEs in PEn-Au-PEn rise nearly linearly with the number of carbon atoms in the PEn chain. The carbon-carbon distance in the C Au-C moiety is around 4.1 A, similar to the bond distance between saturated closed shell chains in the polyethylene crystal. BEs of pure saturated closed shell PEn-PEn oligomers are 51-187 kJ/mol. Both Au atoms and dispersion interactions contribute considerably to the creation of nearly parallel chains of oligomers with reasonably high binding energies. PMID- 29320188 TI - Hydrogen-Bonding Acceptor Character of Be3, the Beryllium Three-Membered Ring. AB - The ability of Be3 as a hydrogen bond acceptor has been explored by studying the potential complexes between this molecule and a set of hydrogen bond donors (HF, HCl, HNC, HCN, H2O, and HCCH). The electronic structure calculations for these complexes were carried out at the MP2 and CCSD(T) computational levels together with an extensive NBO, ELF, AIM, and electrostatic potential characterization of the isolated Be3 system. In all the complexes, the Be-Be sigma bond acts as electron donor, with binding energies between 19 and 6 kJ mol-1. A comparison with the analogous cyclopropane:HX complexes shows similar binding energies and contributions of the DFT-SAPT energetic terms. A blue-shift of the harmonic frequencies of Be3 is observed upon complexation. PMID- 29320189 TI - Free-Energy Analysis of Peptide Binding in Lipid Membrane Using All-Atom Molecular Dynamics Simulation Combined with Theory of Solutions. AB - All-atom molecular dynamics (MD) simulations are performed to examine the stabilities of a variety of binding configurations of alamethicin, a 20-amino acid amphipathic peptide, in the bilayers of 1-palmitoyl-2-oleoyl phosphatidylcholine (POPC) and 1,2-dimyristoyl- sn-glycero-3-phosphatidylcholine (DMPC). The binding free energy of alamethicin is calculated through a combination of MD simulation and the energy-representation theory of solutions, and it is seen that the transmembrane configuration is stable in both membranes. A surface-bound state is also found to be stable due to the balance between the attractive and repulsive interactions of the peptide with lipid and water, and the key role of water is pointed out for the stability in the interfacial region. A difference between the POPC and DMPC systems is noted when the polar C-terminal domain is buried in the hydrophobic region of the membrane. In POPC, the peptide is unfavorably located with that configuration due to the loss of electrostatic interaction between the peptide and lipid. PMID- 29320190 TI - Electronic and Nonlinear Optical Properties of l-Histidine on Silver: A Theoretical and Experimental Approach. AB - An investigation of the electrostatic interactions between histidine and silver have been analyzed using density functional theory (DFT). Variations in the structural parameters were identified to be significant at those atoms of histidine near the silver cluster. The shifting of frontier molecular orbitals, reduction in bandgap, molecular electrostatic potential (MEP), and overlap of natural bond orbitals (NBO) between silver and histidine have been theoretically calculated. The results confirm the redistribution of charges consequent to the process of adsorption. On the basis of time-dependent density functional theory (TDDFT), two peaks were generated at 301 and 409 nm in the simulated UV-vis spectrum. Theoretical vibrational Raman analysis of the investigated molecules strongly confirms the process of adsorption. Nonlinear optical (NLO) properties are predicted by theoretical studies and confirmed experimentally via open aperture Z-scan. The adsorption of histidine on silver enhances the NLO parameters, indicating that it is a promising candidate for NLO devices. PMID- 29320191 TI - Synthesis of 2-Aminoimidazolones and Imidazolones by (3 + 2) Annulation of Azaoxyallyl Cations. AB - The first examples of (3 + 2) annulations between azaoxyallyl cations and cyanamides and nitriles to give the corresponding 2-aminoimidazolones and imidazolones are reported. On the basis of the isolation of unexpected imidate products with certain substrates, it is proposed that the reaction proceeds via fast kinetic O-alkylation followed by rearrangement to the thermodynamically favored 2-aminoimidazolones and imidazolones. The method was applied to the formal synthesis of the antihypertensive drug irbesartan. PMID- 29320192 TI - Photoinduced Birefringent Pattern and Photoinactivation of Liquid-Crystalline Copolymer Films with Benzoic Acid and Phenylaldehyde Side Groups. AB - In situ formation of N-benzylideneaniline (NBA) side groups achieved photoinduced cooperative reorientation of photoinactive copolymers with phenylaldehyde (PA) and benzoic acid (BA) side groups doped with 4-methoxyaniline (AN) molecules. Thermally stimulated molecular reorientation of the side groups was generated due to the axis-selective photoreaction of the NBA moieties. Selective coating with AN on the copolymer film formed NBA moieties in the desired region, resulting in a photoinduced birefringent pattern. Additionally, postannealing at an elevated temperature for a long time attained photoinactivation of the reoriented film, and recoating with AN to form NBA achieved the multiple birefringent patterns and repatterning of the reoriented structures. The slow thermal hydrolysis of NBA, which was 50 times slower than the thermally stimulated self-organization of the side groups due to the presence of BA side groups, contributed to the photodurability of the reoriented film and multiple birefringent patterns. PMID- 29320193 TI - Anionic Triflyldiazomethane: Generation and Its Application for Synthesis of Pyrazole-3-triflones via [3 + 2] Cycloaddition Reaction. AB - The synthesis of pyrazole triflones containing a triflyl group at the 3-position is disclosed. Treatment of 2-diazo-1-phenyl-2-((trifluoromethyl)sulfonyl)ethan-1 one with nitroalkenes under basic conditions gave pharmaceutically attractive pyrazole 3-triflones in good to high yields. The generation of anionic triflyldiazomethane species followed by the [3 + 2] cycloaddition reaction with nitroalkenes is proposed for this transformation. 3 (Difluoromethanesulfonyl)pyrazoles were also synthesized by using a previously unknown anionic (difluoromethanesulfonyl)diazomethane species under a similar strategy. PMID- 29320194 TI - Determining Li+-Coupled Redox Targeting Reaction Kinetics of Battery Materials with Scanning Electrochemical Microscopy. AB - The redox targeting reaction of Li+-storage materials with redox mediators is the key process in redox flow lithium batteries, a promising technology for next generation large-scale energy storage. The kinetics of the Li+-coupled heterogeneous charge transfer between the energy storage material and redox mediator dictates the performance of the device, while as a new type of charge transfer process it has been rarely studied. Here, scanning electrochemical microscopy (SECM) was employed for the first time to determine the interfacial charge transfer kinetics of LiFePO4/FePO4 upon delithiation and lithiation by a pair of redox shuttle molecules FcBr2+ and Fc. The effective rate constant keff was determined to be around 3.70-6.57 * 10-3 cm/s for the two-way pseudo-first order reactions, which feature a linear dependence on the composition of LiFePO4, validating the kinetic process of interfacial charge transfer rather than bulk solid diffusion. In addition, in conjunction with chronoamperometry measurement, the SECM study disproves the conventional "shrinking-core" model for the delithiation of LiFePO4 and presents an intriguing way of probing the phase boundary propagations induced by interfacial redox reactions. This study demonstrates a reliable method for the kinetics of redox targeting reactions, and the results provide useful guidance for the optimization of redox targeting systems for large-scale energy storage. PMID- 29320195 TI - Microstructure of Pharmaceutical Semicrystalline Dispersions: The Significance of Polymer Conformation. AB - The microstructure of pharmaceutical semicrystalline solid dispersions has attracted extensive attention due to its complexity that might result in the diversity in physical stability, dissolution behavior, and pharmaceutical performance of the systems. Numerous factors have been reported that dictate the microstructure of semicrystalline dispersions. Nevertheless, the importance of the complicated conformation of the polymer has never been elucidated. In this study, we investigate the microstructure of dispersions of polyethylene glycol and active pharmaceutical ingredients by small-angle X-ray scattering and high performance differential scanning calorimetry. Polyethylene glycol with molecular weight of 2000 g/mol (PEG2000) and 6000 g/mol (PEG6000) exhibited remarkable discrepancy in the lamellar periodicity in dispersions with APIs which was attributed to the differences in their folding behavior. The long period of PEG2000 always decreased upon aging-induced exclusion of APIs from the interlamellar region of extended chain crystals whereas the periodicity of PEG6000 may decrease or increase during storage as a consequence of the competition between the drug segregation and the lamellar thickening from nonintegral-folded into integral-folded chain crystals. These processes were in turn significantly influenced by the crystallization tendency of the pharmaceutical compounds, drug-polymer interactions, as well as the dispersion composition and crystallization temperature. This study highlights the significance of the polymer conformation on the microstructure of semicrystalline systems that is critical for the preparation of solid dispersions with consistent and reproducible quality. PMID- 29320196 TI - Correction to Regioselective Synthesis, NMR, and Crystallographic Analysis of N1 Substituted Pyrazoles. PMID- 29320197 TI - Synthesis of Thelepamide via Catalyst-Controlled 1,4-Addition of Cysteine Derivatives and Structure Revision of Thelepamide. AB - The first enantioselective total synthesis and structural reassignment of (-) thelepamide, a cytotoxic tetraketide-amino acid from the marine worm Thelepus crispus, is reported. A convergent approach provides access to all thelepamide diastereomers in six steps from four simple building blocks. Key features of the synthesis include the application of Melchiorre's organocatalytic thia-Michael reaction and a sonication-assisted assembly of an unprecedented N,O-acetal hemiacetal moiety. The corrected structure was confirmed by NMR-DFT analysis. PMID- 29320198 TI - Improvement of Anion Transport Systems by Modulation of Chalcogen Interactions: The influence of solvent. AB - A series of potential anion transporters, dithieno[3,2-b;2',3'-d]thiophenes (DTT), involving anion-chalcogen interactions have been studied by analyzing the interaction energy, geometry, and charge transfer. It was found that gas phase calculations show very negative interaction energies with short anion-chalcogen distances, but when solvent effects are considered, the interaction energy values decreased drastically concomitantly with an elongation on the interatomic distances. To enhance the chalcogen interaction between the DTT derivatives and the anion, increasing the anion transporter capacity, bisisothioazole moiety was considered; i.e., the sigma-hole of the chalcogen atom was modulated by substitution of the adjacent carbon by a nitrogen atom in the S-C axis, increasing the depth of the sigma-hole and therefore the interaction between the chalcogen and anion. Finally, different anions were analyzed within the complexes, finding that F- and NO3- would be the best candidates to form complexes and possibly displace other anions such as Cl- or Br-. PMID- 29320199 TI - Theoretical Insights Into the Excited State Double Proton Transfer Mechanism of Deep Red Pigment Alkannin. AB - As the most important component of deep red pigments, alkannin is investigated theoretically in detail based on time-dependent density functional theory (TDDFT) method. Exploring the dual intramolecular hydrogen bonds (O1-H2...O3 and O4 H5...O6) of alkannin, we confirm the O1-H2...O3 may play a more important role in the first excited state than the O4-H5...O6 one. Infrared (IR) vibrational analyses and subsequent charge redistribution also support this viewpoint. Via constructing the S1-state potential energy surface (PES) and searching transition state (TS) structures, we illuminate the excited state double proton transfer (ESDPT) mechanism of alkannin is the stepwise process that can be first launched by the O1-H2...O3 hydrogen bond wire in gas state, acetonitrile (CH3CN) and cyclohexane (CYH) solvents. We present a novel mechanism that polar aprotic solvents can contribute to the first-step proton transfer (PT) process in the S1 state, and nonpolar solvents play important roles in lowering the potential energy barrier of the second-step PT reaction. PMID- 29320200 TI - Electrostatic Estimation of Intercalant Jump-Diffusion Barriers Using Finite-Size Ion Models. AB - We report on a scheme for estimating intercalant jump-diffusion barriers that are typically obtained from demanding density functional theory-nudged elastic band calculations. The key idea is to relax a chain of states in the field of the electrostatic potential that is averaged over a spherical volume using different finite-size ion models. For magnesium migrating in typical intercalation materials such as transition-metal oxides, we find that the optimal model is a relatively large shell. This data-driven result parallels typical assumptions made in models based on Onsager's reaction field theory to quantitatively estimate electrostatic solvent effects. Because of its efficiency, our potential of electrostatics-finite ion size (PfEFIS) barrier estimation scheme will enable rapid identification of materials with good ionic mobility. PMID- 29320201 TI - Synergistic Photo-Copper-Catalyzed Hydroxylation of (Hetero)aryl Halides with Molecular Oxygen. AB - Photoredox-mediated copper-catalyzed hydroxylation of (hetero)aryl halides (including chlorides, bromides, and iodides) with O2 at room temperature has been developed. Preliminary mechanistic studies indicate no arylcopper intermediate and that aryl radicals are involved in this procedure. 18O-labeling experiments confirm the hydroxyl oxygen atom originated from molecular oxygen. PMID- 29320202 TI - Nanoscale Heterogeneities Drive Enhanced Binding and Anomalous Diffusion of Nanoparticles in Model Biomembranes. AB - Interaction of functional nanoparticles with cells and model biomembranes has been widely studied to evaluate the effectiveness of the particles as potential drug delivery vehicles and bioimaging labels as well as in understanding nanoparticle cytotoxicity effects. Charged nanoparticles, in particular, with tunable surface charge have been found to be effective in targeting cellular membranes as well as the subcellular matrix. However, a microscopic understanding of the underlying physical principles that govern nanoparticle binding, uptake, or diffusion on cells is lacking. Here, we report the first experimental studies of nanoparticle diffusion on model biomembranes and correlate this to the existence of nanoscale dynamics and structural heterogeneities using super resolution stimulated emission depletion (STED) microscopy. Using confocal and STED microscopy coupled with fluorescence correlation spectroscopy (FCS), we provide novel insight on why these nanoparticles show enhanced binding on two component lipid bilayers as compared to single-component membranes and how binding and diffusion is correlated to subdiffraction nanoscale dynamics and structure. The enhanced binding is also dictated, in part, by the presence of structural and dynamic heterogeneity, as revealed by STED-FCS studies, which could potentially be used to understand enhanced nanoparticle binding in raft like domains in cell membranes. In addition, we also observe a clear correlation between the enhanced nanoparticle diffusion on membranes and the extent of membrane penetration by the nanoparticles. Our results not only have a significant impact on our understanding of nanoparticle binding and uptake as well as diffusion in cell and biomembranes, but have very strong implications for uptake mechanisms and diffusion of other biomolecules, like proteins on cell membranes and their connections to functional membrane nanoscale platform. PMID- 29320203 TI - Electronically Tunable Perfect Absorption in Graphene. AB - The demand for dynamically tunable light modulation in flat optics applications has grown in recent years. Graphene nanostructures have been extensively studied as means of creating large effective index tunability, motivated by theoretical predictions of the potential for unity absorption in resonantly excited graphene nanostructures. However, the poor radiative coupling to graphene plasmonic nanoresonators and low graphene carrier mobilities from imperfections in processed graphene samples have led to low modulation depths in experimental attempts at creating tunable absorption in graphene devices. Here we demonstrate electronically tunable perfect absorption in graphene, covering less than 10% of the surface area, by incorporating multiscale nanophotonic structures composed of a low-permittivity substrate and subwavelength noble metal plasmonic antennas to enhance the radiative coupling to deep subwavelength graphene nanoresonators. To design the structures, we devised a graphical method based on effective surface admittance, elucidating the origin of perfect absorption arising from critical coupling between radiation and graphene plasmonic modes. Experimental measurements reveal 96.9% absorption in the graphene plasmonic nanostructure at 1389 cm-1, with an on/off modulation efficiency of 95.9% in reflection. PMID- 29320204 TI - Dehydration of Amides to Nitriles under Conditions of a Catalytic Appel Reaction. AB - A highly expedient protocol for a catalytic Appel-type dehydration of amides to nitriles has been developed that employs oxalyl chloride and triethylamine along with triphenylphosphine oxide as a catalyst. The reactions are usually complete in less than 10 min with only a 1 mol % catalyst loading. The reaction scope includes aromatic, heteroaromatic, and aliphatic amides, including derivatives of alpha-hydroxy and alpha-amino acids. PMID- 29320205 TI - Heavy Atom Secondary Kinetic Isotope Effect on H-Tunneling. AB - Although frequently employed, heavy atom kinetic isotope effects (KIE) have not been reported for quantum mechanical tunneling reactions. Here we examine the secondary KIE through 13C-substitution of the carbene atom in methylhydroxycarbene (H3C-C-OH) in its [1,2]H-tunneling shift reaction to acetaldehyde (H3C-CHO). Our study employs matrix-isolation IR spectroscopy in various inert gases and quantum chemical computations. Depending on the choice of the matrix host gas, the KIE varies within a range of 1.0 in xenon to 1.4 in neon. A KIE of 1.1 was computed using the Wentzel-Kramers-Brillouin (WKB) CVT/SCT, and instanton approaches for the gas phase at the B3LYP/cc-pVTZ level of theory. Computations with explicit consideration of the noble gas environment indicate that the surrounding atoms influence the tunneling reaction barrier height and width. The tunneling half-lives computed with the WKB approach are in good agreement with the experimental results in the different noble gases. PMID- 29320206 TI - Domino Carbopalladation/C-H Activation as a Quick Access to Polycyclic Frameworks. AB - A new type of domino reaction for synthesis of heterocycles fusing the important bioactive cores, such as oxindole, indoline, and isoquinoline, is presented. Upon exposure to the very common palladium catalyst, the conceptually designed N alkenyl iodobiaryls undergo a sequential carbopalladation/C-H activation to build polycyclic frameworks. These novel unique frameworks may provide structure sources in fragment-based drug discovery. PMID- 29320207 TI - Nickel(0)-Catalyzed Inert C-O Bond Functionalization: Organo Rare-Earth Metal Complex as the Coupling Partner. AB - An organo rare-earth metal complex has been employed as a highly efficient nucleophile in Ni(0)-catalyzed C-O bond functionalization. The optimized catalytic system which consists of Ni(cod)2, PCy3, and t-BuONa could smoothly convert 1 equiv of naphthyl ethers to alkylated naphthalene analogues with 0.4 equiv of Ln(CH2SiMe3)3(THF)2, delivering good to excellent yields. The reaction system could also activate the ArCH2-O bond with mild base. PMID- 29320208 TI - Ultracompact Pseudowedge Plasmonic Lasers and Laser Arrays. AB - Concentrating light at the deep subwavelength scale by utilizing plasmonic effects has been reported in various optoelectronic devices with intriguing phenomena and functionality. Plasmonic waveguides with a planar structure exhibit a two-dimensional degree of freedom for the surface plasmon; the degree of freedom can be further reduced by utilizing metallic nanostructures or nanoparticles for surface plasmon resonance. Reduction leads to different lightwave confinement capabilities, which can be utilized to construct plasmonic nanolaser cavities. However, most theoretical and experimental research efforts have focused on planar surface plasmon polariton (SPP) nanolasers. In this study, we combined nanometallic structures intersecting with ZnO nanowires and realized the first laser emission based on pseudowedge SPP waveguides. Relative to current plasmonic nanolasers, the pseudowedge plasmonic lasers reported in our study exhibit extremely small mode volumes, high group indices, high spontaneous emission factors, and high Purell factors beneficial for the strong interaction between light and matter. Furthermore, we demonstrated that compact plasmonic laser arrays can be constructed, which could benefit integrated plasmonic circuits. PMID- 29320209 TI - [Pulmonary contusion]. AB - Pulmonary contusion is a common finding after blunt chest trauma. It occurs in 23 35% of all cases. Alveolar capillaries are injured due to the trauma, which results in accumulation of blood and other fluids within lung tissue. The fluids interfere with gas exchange, leading to hypoxemia. The consequences of pulmonary contusion include ventilation/perfusion mismatching, increased AV shunts and loss of compliance of lung parenchyma. These physiological consequences are manifested within hours from injury and usually resolve in 7 days. Computed tomography (CT) is a sensitive and main diagnostic tool. Clinical symptoms include hypoxemia and hypercapnia, manifested predominantly during 72 hours from injury. Patients are treated primarily conservatively; surgery may be needed due to haemothorax associated with lung contusion or progression of AV shunts due to localized pulmonary contusion.Key words: pulmonary contusion blunt chest trauma computed tomography. PMID- 29320210 TI - [Ruptures of the diaphragm]. AB - INTRODUCTION: The diaphragm is a flat muscle that divides the thoracic and abdominal cavities, and it is one of the most important muscles involved in respiration. Traumas of the diaphragm include its rupture caused by an external force, resulting in blunt or penetrating injuries. Diaphragmatic rupture is associated with the risk of a prolapse (i.e. not a typical hernia) of abdominal organs into the pleural cavity. The rupture may occur due to a blunt injury of the chest or abdomen, or due to penetrating injuries (gunshots, stab wounds, foreign bodies) in the lower part of the chest and epigastrium. Ruptures never heal spontaneously and always require suture of the diaphragmatic defect. Most acute rupture cases are managed using laparotomy; thoracotomy is preferred for lately recognised ruptures to facilitate the removal of adhesions in the thoracic cavity developed between the diaphragmatic defect and a lung. Thirty one patients with diaphragmatic rupture were operated at the 3rd Department of Surgery of the 1st Faculty of Medicine, Charles University and University Hospital Motol between 2006 and 2016. Acute rupture was present in 60% of the cases and chronic in 40%. Right-sided rupture was found in 20% and left-sided in 80%. CONCLUSION: The authors describe surgical treatment of diaphragmatic ruptures. They recommend an early surgical treatment if diaphragmatic rupture is recognized. Generally, the prognosis of the patients depends on availability of professional health care; ideally, these patients should be treated at specialised traumacentres with specialists for abdominal and thoracic surgery. The authors advise against establishing injudicious thoracic drainage in cases where diaphragmatic rupture with herniation of abdominal organs into the thorax may be present.Key words: polytrauma - acute rupture of diaphragm - chronic rupture - suture - patch. PMID- 29320211 TI - [Chest injuries in polytraumatized children]. AB - Chest injuries in children are part of polytrauma resulting from high-energy violence, most often caused by traffic accidents. Blunt chest injuries (95%) are significantly more frequent than penetrating injuries (5%). Lung contusion, rib fracture, pneumothorax or haemothorax, are the more common injuries, but tracheobronchial rupture, cardiac or diaphragmatic injuries may also occur. The anterior X-ray image remains the basic examination method for isolated chest injuries. CT trauma scan with a contrast medium is done in polytraumatized children. Blunt injuries of intra-thoracic organs in haemodynamically stable children are treated mostly conservatively (85%) under full monitoring at the ICU. Surgical treatment is necessary in a minority of patients. Mortality and morbidity of patients with chest injury depend on the actual combination of multiple body systems injury. The severity of total injury can be predicted using objective scoring systems (Abbreviated Injury Scale=AIS; Injury Severity Score=ISS). Overall mortality ranges from 6 to 20%. Mortality is high but this is mainly due to associated head injuries.Key words: multiple trauma thoracic trauma - paediatric lung contusion Injury Severity Score=ISS. PMID- 29320212 TI - [Assessment of thoracic trauma at the 1st Department of Surgery in Brno (1 January 2011 - 31 December 2015)]. AB - INTRODUCTION: The number of cases of thorax injury increased steadily between 2011 and 2015. This is probably related to a more active lifestyle of the younger generations and also to the increasing average age of citizens. The aim of the study was to show problems connected with thorax injury. METHOD: Our retrospective study evaluated a group of patients with thoracic injury (diagnosis codes S20-S29) in the period from 1 January 2011 to 31 December 2015 who were treated in our Department. RESULTS: We evaluated a group of 1,697 patients with thoracic injury were divided into five subgroups: 1) simple contusion of the thorax, 2) simple rib fractures, 3) contusion of the thorax with vertebral fractures, 4) serial, multiple rib fractures, 5) stab and gunshot injuries of the thorax. Each subgroup was analyzed independently and in detail. The number of thoracic injuries increased steadily, year on year. More than 40% of the patients were older than 60 years. In the group with simple rib fractures, the authors found 14 cases of pneumothorax (5.1%), which was drained in only 8 cases. The most common complications in the serial rib fractures group included pneumothorax (33 cases, 20%), hemothorax (28 cases, 16.9%) and lung contusion (15 cases, 9%). Stabilization of the thoracic wall was performed 16 times, out of the total of 26 multiple rib fracture cases (61.5%). CONCLUSIONS: Thorax injury is routinely encountered by surgeons. The authors recommend to pay particular attention not only to serious, but also to simple thorax injuries in very old patients, for instance those on anticoagulation therapy. Adequate caution also needs to be taken with serial rib fractures and flail chest and their treatment.Key words: thorax injury - rib fractures - hemothorax - pneumothorax. PMID- 29320213 TI - [Surprising findings during thoracic revision due to gunshot injury - a case report]. AB - INTRODUCTION: Gunshot thoracic injuries are not very common in our geographical location, occurring most frequently in the context of criminal activity or as a result of suicidal behavior. CASE REPORT: The authors report the case of a patient who, in a suicidal attempt, caused himself a combined penetrating gunshot injury of the chest with laceration of the lung and a heart gunshot hole, which was diagnosed peroperatively. CONCLUSION: Therapy of gunshot injuries in the era of modern medicine should be comprehensive in multidisciplinary cooperation.Key words: thoracic trauma gunshot injury lung injury heart injury thoracotomy. PMID- 29320214 TI - [Myxoid liposarcoma localised in the peritoneal cavity case report]. AB - INTRODUCTION: Liposarcoma is one of rare soft tissue tumours. Usually, it is localised in soft tissues of the extremities, can however be localised even in body cavities. The prognosis depends on the localisation and differentiation of the tumour. CASE REPORT: We present a patient indicated for surgical revision due to recurrence (or persistence) after previous surgery and debulking of a myxoid liposarcoma. Laparotomy with debulking, low anterior rectal resection with coloanal anastomosis, and protective ileostomy were done. No adverse events occurred in the postoperative period. However, another recurrence was observed in the subsequent follow-up. CONCLUSION: Myxoid liposarcoma is a rare tumour with a relatively good prognosis when radically removed; in case of intraperitoneal localisation it however remains a virtually unsolvable problem.Key words: liposarcoma - debulking recurrence. PMID- 29320215 TI - [Surprising histological findings on the resected specimen of the omentum due to a strangulated umbilical hernia]. AB - INTRODUCTION: Gastrointestinal stromal tumor, GIST, is the most common mesenchymal tumor of the digestive system. It most often grows from the stomach or the small intestine and tends to be asymptomatic. The basic and the only curative therapy is an attempt at R0 resection. If the tumor is inoperable, metastatic or when neoadjuvant or adjuvant therapy is needed, patients are treated with a tyrosine kinase inhibitor - imatinib. It was discovered in 2000 on the basis of GIST molecular behavior. CASE REPORT: The case report describes a female patient who had been without any clinical symptoms for a long time until she presented with acute abdominal pain due to squeezed umbilical hernia. She underwent an acute operation, resection of the strangulated omentum and reconstruction of the abdominal wall. The omentum was sent for definitive histology. However, the pathologist described nonspecific sarcoma. A subsequent CT scan showed a large tumor mass in the abdominal cavity and in the small pelvis. A multidisciplinary team of the Motol Teaching Hospital indicated the patient for an attempt at radical tumor extirpation. Omentectomy, resection of the jejunum, hysterectomy, right adnexectomy, low anterior resection of the rectum and omphalectomy were performed. The result of the definitive histological examination was high-risk, malignant GIST, c-kit-positive, growing from the jejunum.Key words: GIST gastrointestinal stromal tumor KIT imatinib. PMID- 29320216 TI - Legibility of Text and Pictograms in Variable Message Signs: Can Single-Word Messages Outperform Pictograms? AB - OBJECTIVE: The current research shows the advantage of single-word messages in the particular case of variable message signs (VMSs) with a high aspect ratio. BACKGROUND: Early studies on traffic sign design proposed that pictorial information would advantage equivalent text messages in static signs. METHOD: We used a driving simulator to present individually 36 VMSs, showing six words (e.g., "congestion") and six danger signs (e.g., congestion traffic sign). In Experiment 1, 18 drivers read aloud the text or orally identified the pictograms as soon as they could correctly do it. In Experiment 2, a different sample of 18 drivers gave a motor response, according to the meaning of the message. We analyzed the legibility distance and accuracy, driving performance (speed variability), and glance behavior. RESULTS: Our results show that single-word messages were associated with better performance (farther reading distances) and required less visual demands (fewer glances and less glancing times) than pictograms. CONCLUSION: As typical configurations of VMSs usually have a high aspect ratio, and thus allow large character heights, single-word messages can outperform the legibility of pictograms. However, the final advantage of text or pictorial messages would depend on several factors, such as the driver's knowledge of the language and the pictogram set, the use of single or multiple words, the particular design and size of critical details in letters and pictograms, environmental factors, and driver age. APPLICATION: Potential applications include the design of VMSs and other devices aimed at displaying text and/or pictograms with a high aspect ratio. PMID- 29320217 TI - Access to Health Care: Response. PMID- 29320218 TI - Comparison of Diabetic Foot Care to Other Diabetic Preventive Care Services. AB - BACKGROUND: METHODS: RESULTS: CONCLUSIONS. PMID- 29320219 TI - Modified Latarjet Without Capsulolabral Repair in Rugby Players With Recurrent Anterior Glenohumeral Instability and Significant Glenoid Bone Loss. AB - BACKGROUND: The optimal management of recurrent anterior shoulder instability with significant glenoid bone loss in high-demand collision athletes remains a challenge. PURPOSE: To analyze the time to return to sport, clinical outcomes, and recurrences following a modified Latarjet procedure without capsulolabral repair in rugby players with recurrent anterior shoulder instability and significant glenoid bone loss. STUDY DESIGN: Case series; Level of evidence, 4. METHODS: Between June 2008 and June 2015, 50 competitive rugby players (practice >2 times per week and competition during weekends) with recurrent anterior shoulder instability underwent operation with the modified congruent arc Latarjet procedure without capsulolabral repair in our institution. Cases included 18 primary repairs and 32 revisions. Return to sports, range of motion (ROM), the Rowe score, a visual analog scale for pain in sport activity (VAS), and the Athletic Shoulder Outcome Scoring System (ASOSS) were used to assess functional outcomes. Recurrences were also evaluated. The postoperative bone block position and consolidation were assessed with computed tomography. The final analysis included 49 shoulders in 48 patients (31 revision cases). RESULTS: The mean follow-up was 48 months (range, 24-108 months) and the mean age at the time of operation was 22.8 years (range, 17-35 years). Forty-five patients (93.7%) returned to playing rugby, all at their preinjury level of play. No significant difference in shoulder ROM was found between preoperative and postoperative results. The Rowe, VAS, and ASOSS scores showed statistically significant improvement after operation ( P < .001). The Rowe score increased from a mean of 39.5 points preoperatively to 94 points postoperatively ( P < .01). The VAS score decreased from 3.6 points preoperatively to 1.2 points postoperatively ( P < .01). The ASOSS score improved significantly from a mean of 44 points preoperatively to 89.5 points postoperatively ( P < .01). No recurrence of shoulder dislocation or subluxation was noted. The bone block healed in 43 shoulders (88%). CONCLUSION: In rugby players with recurrent anterior shoulder instability and significant glenoid bone loss, the modified Latarjet procedure without capsulolabral repair produced excellent functional outcomes, with most athletes returning to rugby at their preinjury level of play without recurrences. PMID- 29320221 TI - THE FATE OF BOTRYLLUS (ASCIDIACEA) LARVAE COSETTLED WITH PARENTAL COLONIES: BENEFICIAL OR DELETERIOUS CONSEQUENCES? AB - The consequences of settlement of Botryllus larvae close to or on parental colonies were followed in two sets of experiments. In the first, 28 experimental progeny settled adjacent to 6 parents; 207 other sibling progeny served as controls. Four different types of interactions between parent colony and offspring were observed: fusion and resorption of the offspring, fusion and separation, tunic-to-tunic contact and separation, tunic-to-tunic contact, and the death of offspring. Offspring interacting with parents had significantly higher mortality than control offspring. Resorption was the fastest process (one week on average); the two "separation" processes lasted approximately two months. Twenty of the 21 progeny that died after interacting with parents did not grow at all (even after 75 days). All 7 offspring that separated from their parents grew. In two cases of fusion between offspring and adults, large eggs were found within the progeny zooids. Presumably the eggs translocated from the maternal colony through the connecting blood vessels. Only five progeny survived in this set of experiments, a phenomenon which coincided with the degeneration or the mortality of the parent. In the second set of experiments all 93 progeny which had settled on old, dead tunics of 5 parental colonies died within 8 weeks. These results indicate that cosettlement of offspring proximal to their parental colony is usually deleterious in the long term to the progeny, both when they fuse with or when they merely contact the parent. This phenomenon was also recorded in field observations. We suggest that the phenomenon of gregarious settlement of Botryllus larvae near their parents, although characterized by the loss of many progeny, is nonetheless advantageous in response to biotic interactions such as interspecific competition. In this view resorption may have evolved as a secondary process, as a result of the nature of self/nonself recognition in Botryllus. PMID- 29320220 TI - Markers of inflammation as risk predictors of lethal outcome in patients diagnosed with delirium. AB - Background/Aim: Delirium is an acute or subacute, and most frequently reversible syndrome of higher cortical functions disturbances that is manifested as generalized disorder. If not prevented, it is associated with various adverse outcomes. The aim of this study was to determine the connection between the markers of inflammation and lethal outcome in patients diagnosed with delirium, hospitalized in the psychiatric intensive care unit. Methods: This retrospective study included 120 patients hospitalized in the psychiatric intensive care unit in whom examination of differences in inflammation markers was done. The examinees have been divided into two groups: the case group of 40 patients who died during the hospitalization, and the control group of 80 examinees who were discharged with the diagnosis Post delirium status. The following variables were taken into account: age, gender, clinical diagnosis of infection (pneumonia and urinary tract infection), laboratory parameters (total of white blood cells, granulocytes, monocytes, C-reactive protein - CRP) and type of delirium (withdrawal or organic). Results: The average age of patients was 50.3 +/- 13.1 years. The patients who survived delirium, were on the average 10.5 years younger than the deceased (p < 0.001). More than half (57.5%) of the deceased had pneumonia. There was a statistically significant correlation between pneumonia and lethal outcome in the patients with delirium (p < 0.001). The examinees with lethal outcome had significantly higher median CRP levels than the group of examinees who survived (75.6% +/- 54.0 vs 30.3 +/- 42.5 ng/L, p < 0.001). Conclusion: Aiming to better and more precise diagnostics of this complicated and still unclear neuropsychiatric syndrome it would be useful to consider introduction of more precise diagnostic algorithms in every unit of intensive care. That would significantly reduce the number of delirium diagnosis overlook, decrease complication of clinical features and would also reduce the unfavorable outcome rate, therefore the total cost of treatment. PMID- 29320222 TI - VARIABILITY IN FLASH CHARACTERISTICS OF A BIOLUMINESCENT COPEPOD. AB - Bioluminescence of the copepod, Pleuromamma xiphias, was investigated with an optical multichannel analyzer(OMA) to measure emission spectra, an integrating sphere-photon counting detector system to determine flash kinetics and quantum emission, and an ISIT video system to image spatial patterns of emission. Light emission was in the blue spectral region, with maximum emission at approximately 492 nm. Spectral waveforms were unimodal, or bimodal with the secondary peak at 472 nm. Flashes in response to a single stimulus consisted of two components: a fast component attaining maximum intensity in under 100 ms, and a slow element which peaked after 600 ms. The fast component originated from thoracic and abdominal light organs while the slow component represented a large expulsion of luminescent material from the abdominal organ only. Both components exhibited first order exponential decay although the decay rate of the fast component was approximately one order of magnitude greater. The typical flash response to a single stimulus exhibited a response latency of 30 ms, initial rise time of 87 ms, duration of 2.4 s, and quantum emission of 1.4 x 1010 photons flash-1. Quantum emission increased with increasing stimulus strength. Both response waveform and total quantum emission were affected by the frequency of electrical stimuli. Stimulation at 1 Hz generated the greatest luminescence, averaging 1.1 x 1011 photons response-1 for 11 s emissions. Higher rates of stimulation decreased total quantum emission and response episode duration, and resulted in greater temporal summation of the emission waveform. Variability in flash characteristics due to electrical stimulation suggests a versatility of luminescent displays in situ. PMID- 29320223 TI - QUANTITATIVE ESTIMATION OF MOVEMENT OF AN AMINO ACID FROM HOST TO CHLORELLA SYMBIONTS IN GREEN HYDRA. AB - Washing symbiotic Chlorella algae freshly isolated from green hydra with 0.05% sodium dodecyl sulphate was shown to remove virtually all contaminating host material, previously a severe constraint in quantifying movement of metabolites from host to symbionts. When brine shrimp labelled with 3H-leucine were fed to hydra in symbiosis either with the native strain of Chlorella (E/E hydra) or two strains cultured from Paramecium bursaria (E/3N and E/NC hydra), it was found that after 24 h 3-4% of the total radioactivity retained by the symbiosis was present in the algae. Analysis of the free amino acid pool of symbiotic algae from E/E hydra showed that over 70% of the radioactivity was associated with leucine, and significant amounts of radioactivity were retained by these algae for at least five days following a single feeding with radioactive brine shrimp. In both E/E and E/NC hydra, the amount of radioactivity per unit protein was considerably less in the symbionts than in the host, suggesting that access to host amino acid pools were limited. These results are discussed in terms of the possible role and regulatory significance of amino acids as a nitrogen source to symbiotic Chlorella, and of the cost to the host in maintaining the symbiosis. PMID- 29320224 TI - NEURONAL CONTROL OF CILIARY LOCOMOTION IN A GASTROPOD VELIGER (CALLIOSTOMA). AB - Intracellular recordings from pre-oral ciliated cells of competent Calliostoma ligatum veligers were used to demonstrate the mechanisms of neuronal control of ciliary locomotion. During normal ciliary beating at 5-7 Hz, the membrane potential shows no oscillations or spiking activity. It remains at a resting potential of about -60 mV. Depolarization from resting potential is due to excitatory input from the CNS and, depending upon the kind of input, veligers appear to show two types of locomotory behavior. In one type, normal ciliary beating is periodically interrupted by rapid, velum-wide ciliary arrests. These arrests are caused by a propagated, Ca++-dependent action potential in the pre oral ciliated cells. The second type is characterized by either a velum-wide or local slowing of normal ciliary beating, and appears to result from a slow depolarization of the ciliated cell membrane. Pre-oral ciliated cells are electrically coupled to each other. This property may ensure the synchrony of velum-wide ciliary arrests or differential velar slowing of ciliary beating. These findings demonstrate some of the mechanisms ofthe fine control veligers possess over their locomotory and feeding behavior. PMID- 29320225 TI - FEEDING BEHAVIOR IN HYDRA. I. EFFECTS OF ARTEMIA HOMOGENATE ON NEMATOCYST DISCHARGE. AB - Inhibition of desmoneme and stenotele nematocyst discharge occurs when Hydra attenuata are fed to repletion. Inhibition can be induced by the application of prey homogenates in the external medium. The onset of inhibition is relatively rapid (<30 s) while the release from inhibition is much slower (>20 min). Inhibition is concentration-depedent. Gel chromatography separation of homogenate shows that the inhibitory substance(s) have a molecular weight greater than 5000. These substances cause the strongest stenotele inhibition and are least effective in activating the feeding reflex (mouth opening and tentacle concerts) which is caused by smaller molecular weight substances. The receptor sites for the inhibitory substance(s) are located on the external surface of the hydra tentacle. Accumulation of prey substances may be the mechanism by which stenotele discharge is inhibited when hydra are fed to repletion. PMID- 29320226 TI - THE EFFECTS OF SALINITY STRESS ON THE RATES OF AEROBIC RESPIRATION AND PHOTOSYNTHESIS IN THE HERMATYPIC CORAL SIDERASTREA SIDEREA. AB - Corals are reputed to have low tolerance to salinity fluctuations. Yet the scleractinian coral Siderastrea siderea commonly inhabits reef zones and nearshore areas that experience salinity fluctuations of 5 to l0%. Small colonies of this species were subjected to both long-term and sudden decreases or increases in salinity. Their rates of aerobic respiration and photosynthesis, measured as changes in oxygen concentration, were followed for up to 144 hours after the sudden changes. Normal salinities of coastal waters near Panacea, Florida, are 28 to 30% but S. siderea was able to acclimate to 42% when salinity was increased slowly over a 30-day period. Neither respiratory nor photosynthetic rates of S. siderea were affected by changes in salinity of less than 10% above or below the acclimation salinity. Greater changes in salinity (either up or down) caused decreases in respiratory and photosynthetic rates proportional to the magnitude of the salinity change. Decreases in chborophyll per algal cell and in assimilation number were associated with and possibly responsible for some of the decreases in photosynthetic rates. These results show that S. siderea is able to withstand sudden and prolonged, environmentally realistic changes in salinity without measurable whole-animal effects. Further studies are needed to determine whether this species is remarkable in its ability to tolerate salinity change, or whether reef corals are more tolerant to salinity change than is generally believed. PMID- 29320227 TI - UPSTREAM AND DOWNSTREAM CAPTURE DURING SUSPENSION FEEDING BY OLIGOMETRA SERRIPINNA (ECHINODERMATA: CRINOIDEA) UNDER SURGE CONDITIONS. AB - The crinoid Oligometra serripinna is a suspension feeder that usually experiences unidirectional tidal currents from which it extracts food particles by downstream capture (i.e., while the food grooves face downcurrent). However, near slack tide, wave surge may cause brief current reversals, each lasting about 2 s at roughly 10 s intervals. To test if a crinoid can engage in upstream capture (i.e., while the food grooves face upcurrent) during brief current reversals, we approximated these surge conditions in a laboratory flume. In the laboratory, as in the field, the crinoid oriented its food grooves downstream with respect to the predominant current, and the body posture did not change during the brief intervals of reversed flow. Brine shrimp cysts were added to the flume, and video recordings were made of the crinoid capturing these particles. Under surge conditions, the crinoid (1) captured 16.2% of the approaching particles while its food grooves faced downstream and (2) captured 8.0% of the approaching particles while its food grooves faced upstream. Thus O. serripinna used its filter both for upstream capture and for downstream capture, although the former was only about half as efficient as the latter. PMID- 29320228 TI - EELGRASS WASTING DISEASE: CAUSE AND RECURRENCE OF A MARINE EPIDEMIC. AB - Eelgrass populations are currently infected with a disease that produces symptoms and epidemiology reminiscent of the famous eelgrass wasting disease of the 1930s. This disease virtually eliminated eelgrass (Zostera marina L.) in the North Atlantic for three decades. For 50 years scientists have speculated about the cause of the 1930s eelgrass decline. We have now proven that the causal organism of the present epidemic is a pathogenic strain of Labyrinthula, which was suspected, but never conclusively shown to cause the 1930s wasting disease. We have isolated the infectious form of Labyrinthula from eelgrass from Maine to North Carolina on the Atlantic coast, and from Puget Sound on the Pacific coast; disease-related dieoffs of eelgrass beds are confirmed in Maine, New Hampshire, and Massachusetts. PMID- 29320229 TI - ABSTRACTS OF PAPERS PRESENTED AT THE MARINE BIOLOGICAL LABORATORY: NORTHEASTERN REGIONAL CONFERENCE ON DEVELOPMENTAL BIOLOGY. PMID- 29320230 TI - PHYSIOLOGICAL AND BIOCHEMICAL INVESTIGATIONS OF THE EGG JELLY RELEASE IN PENAEUS AZTECUS. AB - Following contact with seawater, Penaeus aztecus ova undergo a massive release of extracortical jelly precursor material which is transformed into a layer of jelly like material surrounding the ova. Release and dissipation of the precursors can be irreversibly inhibited by the protease inhibitors N-a-p-tosyl-L-lysine chloromethyl ketone and soybean trypsin inhibitor, implicating trypsin-like proteases in the process. Treatment with the less-specific enzyme inhibitor phenylmethyl sulfonyl fluoride also irreversibly inhibits the release of the cortical material. Jelly precursor in whole mature ovaries stain positive with PAS. Staining with alcian blue reveals acid mucopolysaccharides in the investment coat of the ova but not in the jelly precursors. Precursors isolated from whole mature ovaries are approximately 25-30% carbohydrate (anthrone sulfuric acid reaction) and 70-75% protein (Lowry's and Bradford's protein determinations). No sialic acids are detected in the isolates (thiobarbituric acid assay). Trypsin is effective in dissipating the precursor isolates. Amino acid analysis reveals high ratios of cysteic acid. Significant biochemical differences between P. aztecus egg jelly material and sea urchin egg jelly are discussed. PMID- 29320231 TI - QUANTITATIVE GENETICS OF JUVENILE GROWTH AND SHAPE IN THE MUD CRAB EURYPANOPEUS DEPRESSUS 1. AB - Rates of growth and development were measured for the first six molts following the crab 1 stage in the mud crab Eurypanopeus depressus. The genetic contribution to variation in growth rate, development rate, and shape was determined for each molt interval. Genetic variation in growth rate, measured as increases in both width and length, was evident at most molt intervals. There were also significant genetic effects upon the intermolt interval. Growth rates for each molt interval, calculated on a daily basis to remove the interaction between growth rate and development rate also showed genetic variation. There was no evidence that genetic variation in these parameters changed during early juvenile development; there were substantial levels of genetic variation in growth rate at most ontological stages. Despite high levels of genetic variation for growth rate in dimensions of the carapace, there was no evidence of genetic variation in shape. This analysis does not provide a quantitative estimate of the levels of genetic variance for these traits but does indicate that the magnitude of this source of variance must be very significant. PMID- 29320232 TI - Barriers to the Adoption of Wearable Sensors in the Workplace: A Survey of Occupational Safety and Health Professionals. AB - OBJECTIVE: To gather information on the (a) types of wearable sensors, particularly personal activity monitors, currently used by occupational safety and health (OSH) professionals; (b) potential benefits of using such technologies in the workplace; and (c) perceived barriers preventing the widespread adoption of wearable sensors in industry. BACKGROUND: Wearable sensors are increasingly being promoted as a means to improve employee health and well-being, and there is mounting evidence supporting their use as exposure assessment and personal health tools. Despite this, many workplaces have been hesitant to adopt these technologies. METHODS: An electronic survey was emailed to 28,428 registered members of the American Society of Safety Engineers (ASSE) and 1,302 professionals certified by the Board of Certification in Professional Ergonomics (BCPE). RESULTS: A total of 952 valid responses were returned. Over half of respondents described being in favor of using wearable sensors to track OSH related risk factors and relevant exposure metrics at their respective workplaces. However, barriers including concerns regarding employee privacy/confidentiality of collected data, employee compliance, sensor durability, the cost/benefit ratio of using wearables, and good manufacturing practice requirements were described as challenges precluding adoption. CONCLUSION: The broad adoption of wearable technologies appears to depend largely on the scientific community's ability to successfully address the identified barriers. APPLICATION: Investigators may use the information provided to develop research studies that better address OSH practitioner concerns and help technology developers operationalize wearable sensors to improve employee health and well-being. PMID- 29320233 TI - Antibacterial Activities of Hibiscus sabdariffa Extracts and Chemical Sanitizers Directly on Green Leaves Contaminated with Foodborne Pathogens. AB - Leafy greens have been associated with foodborne disease outbreaks in different countries. To decrease microbial contamination of leafy greens, chemical agents are commonly used; however, a number of studies have shown these agents to have limited antimicrobial effect against pathogenic bacteria on vegetables. The objective of this study was to compare the antibacterial effect of Hibiscus sabdariffa calyx extracts (water, methanol, acetone, and ethyl acetate), sodium hypochlorite, acetic acid, and colloidal silver against foodborne bacteria on leafy greens. Thirteen foodborne bacteria were used in the study: Listeria monocytogenes, Shigella flexneri, Salmonella serotypes Typhimurium Typhi, and Montevideo, Staphylococcus aureus, Escherichia coli O157:H7, five E. coli pathotypes (Shiga toxin-producing, enteropathogenic, enterotoxigenic, enteroinvasive, and enteroaggregative), and Vibrio cholerae O1. Each foodborne bacterium was separately inoculated on romaine lettuce, spinach, and coriander leaves. Separately, contaminated leafy greens were immersed in four hibiscus extracts and in sanitizers for 5 min. Next, green leaves were washed with sterile tap water. Separately, each green leaf was placed in a bag that contained 0.1% sterile peptone water and was rubbed for 2 min. Counts were done by plate count using appropriate dilutions (in sterile peptone water) of the bacterial suspensions spread on Trypticase soy agar plates and incubated at 35 +/- 2 degrees C for 48 h. Statistically significant differences ( P < 0.05) were calculated with an analysis of variance and Duncan's test. All 13 foodborne bacteria attached to leafy greens. Roselle calyx extracts caused a significantly greater reduction ( P < 0.05) in concentration of all foodborne bacteria on contaminated romaine lettuce, spinach, and coriander than did the sodium hypochlorite, colloidal silver, and acetic acid. Dry roselle calyx extracts may potentially be a useful addition to disinfection procedures for romaine lettuce, spinach, and coriander. PMID- 29320234 TI - Influence of Soap Characteristics and Food Service Facility Type on the Degree of Bacterial Contamination of Open, Refillable Bulk Soaps. AB - Concern has been raised regarding the public health risks from refillable bulk soap dispensers because they provide an environment for potentially pathogenic bacteria to grow. This study surveyed the microbial quality of open refillable bulk soap in four different food establishment types in three states. Two hundred ninety-six samples of bulk soap were collected from food service establishments in Arizona, New Jersey, and Ohio. Samples were tested for total heterotrophic viable bacteria, Pseudomonas, coliforms and Escherichia coli, and Salmonella. Bacteria were screened for antibiotic resistance. The pH, solids content, and water activity of all soap samples were measured. Samples were assayed for the presence of the common antibacterial agents triclosan and parachlorometaxylenol. More than 85% of the soap samples tested contained no detectable microorganisms, but when a sample contained any detectable microorganisms, it was most likely contaminated at a very high level (~7 log CFU/mL). Microorganisms detected in contaminated soap included Klebsiella oxytoca, Serratia liquefaciens, Shigella sonnei, Enterobacter gergoviae, Serratia odorifera, and Enterobacter cloacae. Twenty-three samples contained antibiotic-resistant organisms, some of which were resistant to two or more antibiotics. Every sample containing less than 4% solids had some detectable level of bacteria, whereas no samples with greater than 14% solids had detectable bacteria. This finding suggests the use of dilution and/or low-cost formulations as a cause of bacterial growth. There was a statistically significant difference ( P = 0.0035) between the fraction of bacteria-positive samples with no detected antimicrobial agent (17%) and those containing an antimicrobial agent (7%). Fast food operations and grocery stores were more likely to have detectable bacteria in bulk-soap samples compared with convenience stores ( P < 0.05). Our findings underscore the risk to public health from use of refillable bulk-soap dispensers in food service establishments. PMID- 29320236 TI - ERRATUM. AB - THE BIOLOGICAL BULLETIN, Volume 166, Number 3, Page 529 The following correction should be made in the paper by Chizuko Obata and Shin-Ichi Nemoto entitled, Artificial parthenogenesis is in starfish eggs: production of parthenogenetic development through suppression of polar body formation by methlxanthines (1984, Biol. Bull. 166: 525-536): the scale bar in A of Figure 4 should read 150 um. Thus the last sentence of the legend should read: Bar in A representing 150 um is common to A through F. PMID- 29320235 TI - A Limited Survey of Metal Content in Blue Jack Mackerel ( Trachurus picturatus) Obtained from Markets in the Canary Islands. AB - The levels of 20 metals (aluminum, boron, barium, calcium, cadmium, cobalt, chromium, copper, iron, potassium, lithium, magnesium, manganese, molybdenum, sodium, nickel, lead, strontium, vanadium, and zinc) were analyzed in muscle and liver tissue of Trachurus picturatus marketed in the Canary Islands (Spain) by using inductively coupled plasma optical emission spectrometry. In the liver samples, the mean concentrations in milligrams per kilogram wet weight (wt) of Al (14.7), B (0.99), Ba (1.64), Ca (314), Cd (2.52), Co (0.15), Cu (4.07), Fe (106), Li (3.89), Mn (0.85), Mo (0.16), Na (1510), Ni (0.51), Pb (0.36), Sr (3.54), V (0.78), and Zn (23.13) were higher than those detected in the muscle samples in milligrams per killogram wet wt, which were as follows: Al (8.76), B (0.07), Ba (0.30), Ca (210), Cd (0.01), Co (0.01), Cu (1.51 ), Fe (7.33), Li (1.08), Mn (0.12), Mo (0.01), Na (697), Ni (0.11), Pb (0.04), Sr (1.45), V (0.01), and Zn (4.69). The mean concentrations of Cr, K, and Mg (0.14, 1,904, and 243 mg/kg wet wt, respectively) were higher in muscle than in liver (0.05, 1,333 and 236 mg/kg wet wt, respectively). The mean concentrations of Cd and Pb (0.01 and 0.04 mg/kg wet wt) in muscle did not exceed the maximum limits established by a European Commission regulation (0.1 mg of Cd/kg and 0.3 mg of Pb/kg, respectively). Considering a mean daily consumption of fish muscle for the adult population of 31.9 g/day published in the report on food consumption by the Spanish Ministry of Agriculture and Fisheries, Food and Environment, Mg made the highest contributions to the intake (2.58% for adult women of 60 kg and 2.22% for men of 70 kg), and the estimated intakes of Al (0.35 to 0.46 mg/day), Cd (0.55 to 0.74 mg/day) and Pb (1.66 to 5.53 mg/day) were below the respective established tolerable intakes. In conclusion, the results of this study show that the consumption of muscle from this benthopelagic species can be considered safe in terms of maximum legal limits, while consumption of liver is discouraged as a major source of exposure to toxic metals, such as Al, Cd, and Pb. PMID- 29320238 TI - THE PREVENTION OF POLYSPERMIC FERTILIZATION IN SEA URCHINS. PMID- 29320237 TI - LABORATORY STUDIES OF FEEDING AND MATING IN SPECIES OF CARCINONEMERTES (NEMERTEA: HOPLONEMERTEA). AB - Details of the suctorial feeding behavior of some species of Carcinonemertes on crab eggs are described. Under laboratory conditions juvenile and male worms ate an average of 0.6-0.7 crab egg/day. Females ate 2-3 eggs/day. Laboratory feeding rates of worms from different hosts were similar when worms were fed eggs of the same host. No worms ate lobster eggs. Worms grown under laboratory conditions tended to be smaller than similar-aged worms found on hosts. Female worms fed natural host eggs or eggs of unnatural hosts started laying egg strings in a variable number of days. More variability in timing of egg production was observed within a worm species than between species when fed on the same host's eggs. Mating behavior is described for the first time for a species of Carcinonemertes. PMID- 29320239 TI - MORPHOLOGICAL OBSERVATIONS AND MICROSPECTROPHOTOMETRIC DATA FROM PHOTORECEPTORS IN THE RETINA OF THE SEA RAVEN, HEMITRIPTERUS AMERICANUS. AB - A histological survey of the retinas of some fishes has revealed an unusual cone formation. We repeatedly find these unusual triple cones in 10% of the retinas reviewed. To obtain further information about these photoreceptors, the sea raven, whose retina is known to contain them, was chosen for further study. Microspectrophotometric measurements were made to determine the peak absorbance of the visual pigment contained in the three individual outer segments. We report here the results of measurements made on triple cones found in the retina of the sea raven, Hemitripterus americanus. PMID- 29320240 TI - FINE STRUCTURE AND VITAL STAINING OF OSPHRADIUM OF THE SOUTHERN OYSTER DRILL, THAIS HAEMASTOMA CANALICULATA (GRAY) (PROSOBRANCHIA: MURICIDAE). AB - The morphology of the osphradium of Thais haemastoma canaliculata (Gray) was examined using light microscopy, SEM, and TEM. The osphradium is composed of approximately 150-200 lamellae, each of which is divided into two distinct regions by a groove situated parallel to the dorsal edge of the organ. The dorsal one-fourth of each lamella is covered by dense cilia that are assumed to generate water currents about the osphradium. Ciliary tufts, located in small depressions, and numerous secretory cells are distributed uniformly on the ventral three fourths of the lamellae. A thin tract of cilia borders the ventral edge of each lamella. The overall cellular organization is less complex than has been reported previously in other marine prosobranchs. Selective staining of putative chemoreceptors was performed using Procion Brilliant Yellow. Individual cells in the ventral region and the ventral edge of each lamella were Procion-positive. Results of this study suggest that ventral interlamellar regions and the ventral edge of each lamella are chemosensory regions, while the dorsal portion of each lamella is indifferent epithelium. PMID- 29320241 TI - CHEMOAUTOTROPHIC SYMBIONTS IN THE BIVALVE LUCINA FLORIDANA FROM SEAGRASS BEDS. AB - Enzymatic and histological evidence suggest that the eulamellibranch bivalve Lucina fioridana possesses bacterial endosymbionts capable of a chemoautotrophic metabolism. Dense populations of L. floridana (83 +/- 11 per m2; 95% CI, n = 33) are found closely associated with the O2-releasing root systems of seagrasses in sulfiderich sediments; the sandy sediments of both Thalassia and Ruppia beds contain 1.67 +/- 0.3 1 mM (95% CI, n = 13) and 2.49 +/- 0.55 mM (95% CI, n = 13) sulfide, respectively. Both transmission electron microscopy of gill tissue and scanning electron microscopy of freeze-fractured gills reveal numerous rod-shaped procaryotic inclusions in vacuoles of large, eucaryotic cells ("bacteriocytes") located deeply within demibranch cross sections; no such inclusions are seen in the ciliated gill epitheium which is rich in mitochondria. Activities of ribulose 1,5-bisphosphate carboxylase (RuBPCase), phosphoribulokinase, APS reductase, ATP sulfurylase, and nitrite reductase have been measured and partially characterized in homogenates of fresh gill tissue. Light microscopy reveals numerous aggregations of pigmented granules localized to the interior of the gill in association with the bacteriocytes. Histochemical staining demonstrates the presence of iron in these granules, consistent with the idea that their composition, in part, may be respiratory pigment and/or iron-containing cytochromes. Energy dispersive X-ray analysis reveals sulfur as a dominant inorganic element in the gill tissue. Based on abundance data of L. fioridana and in vitro levels of RuBPCase (half-maximal velocity) this bivalve could potentially contribute 336 +/- 96 g C/m2/year (95% CI) to the gross carbon fixation of seagrass beds. PMID- 29320242 TI - CHEMOSENSORY RESPONSES TO AMINO ACIDS AND CERTAIN AMINES BY THE CILIATE TETRAHYMENA: A FLAT CAPILLARY ASSAY. AB - An assay for chemosensory responses by the ciliate Tetrahymena thermophila is described that uses glass capillaries with a rectangular cross-section (inner dimensions, 20 x 2 x 0.2 mm). These have optical and geometrical properties permitting convenient observation of cell behavior within the capillaries. Washed cells, starved for 12 h, accumulated preferentially in capillaries containing L methionine, L-leucine, L-cysteine, L-histidine, L-histamine, cimetidine, agmatine, and berenil at concentrations of 10-3 M or less. They avoided capillaries containing tripelennamine, diphenhydramine, and pentamidine at these concentrations. It is argued that the actual response thresholds are much lower than the concentrations put into the capillaries, since cells respond to the gradient of the diffusing chemical. L-Isoleucine, itself inert, blocked the response to L-leucine but not to L-methionine, L-cysteine, or L-histidine. L Ethionine and 1-homocysteine caused accumulation but not L-cysteine or DL cystathionine. L-Cystine did not block the response to L-cysteine. Cells accelerated when entering a capillary where accumulation occurred. On reaching the interior they swam more slowly and uniformly, and with fewer turns or stops than in control capillaries lacking the chemical signal, or when outside of the capillaries. Cells were inhibited from leaving both control and test capillaries, possibly because of accumulated wastes or secretions in the surrounding medium. PMID- 29320243 TI - THE FMRFamide-LIKE NEUROPEPTIDE OF APLYSIA IS FMRFamide. AB - The head ganglia from 350 Aplysia brasiliana were extracted and purified by gel (Sephadex G-15) and cation exchange (CM-Sephadex) chromatography; the fractions were examined with radioimmunoassays (RIA) for the molluscan neuropeptides, FMRFamide and SCPB. Immunoreactive (ir-) FMRFamide (but not ir-SCPB) coeluted with authentic FMRFamide from both chromatographic columns. The amino acid composition of the purified peptide was: Phe 2: Arg 1: Met 1. Digestion of purified ir-FMRFamide with carboxypeptidase Y indicated that the four residues were in the same sequence as occurs in FMRFamide. The dose-response curves for purified and synthetic FMRFamide on the radula protractor muscle of Busycon contrarium were coincident, as were their inhibition binding curves in the FMRFamide RIA. The highest concentrations of ir-FMRFamide were in the pedal and pleural ganglia; but SCPB was concentrated in the buccal ganglion. Synthetic SCPB has no effect on the radula protractor muscle of Busycon or the isolated heart of Mercenaria. In conclusion, the FMRFamide-like peptide in the gastropod Aplysia is FMRFamide, so this peptide has now been identified in two molluscan classes. Moreover, the proposed structural relationship between FMRFamide and SCPB is fortuitous, and these two peptides should have different physiological functions in Aplysia. PMID- 29320244 TI - ABSTRACTS OF PAPERS PRESENTED AT THE GENERAL SCIENTIFIC MEETINGS OF THE MARINE BIOLOGICAL LABORATORY. PMID- 29320245 TI - DIRECT ACCESS OF IONS TO THE SQUID STELLATE GANGLION GIANT SYNAPSE BY AORTIC PERFUSION: EFFECTS OF CALCIUM-FREE MEDIUM, LANTHANUM, AND CADMIUM. AB - The giant synapse in the squid stellate ganglion has served as a model in the understanding of normal synaptic transmission, but has not been used extensively in the study of changes in external ion concentrations or pharmacological agents. This anomaly is due primarily to the substantial diffusion barrier that exists between the synapse and the bathing medium. The present study describes a technique for the rapid introduction of substances into the synapse by perfusion through the arterial blood supply that improves access by at least 50-fold. This is demonstrated by treatments known to block the Ca2+ activated release of transmitter from the nerve terminal: Ca2+-free medium, La3+, and Cd2+. Whereas such treatments take 20 minutes to 3 hours to block transmitter release with bath application, with perfusion they act within a few seconds. The excitatory postsynaptic potential (EPSP) is reduced below action potential threshold in 5 to 22 seconds, and disappears completely in less than a minute. In addition, the use of pressurized O2 to drive the perfusate through the preparation eliminates the need for superfusion with O2 and aids in the long term maintenance of the ganglion. This study confirms the important role of Ca2+ in the release of transmitter at the giant synapse, and opens up this neurobiologically important preparation for ionic and pharmacologic evaluation. PMID- 29320246 TI - TRANSFER OF NEMERTEAN EGG PREDATORS DURING HOST MOLTING AND COPULATION. AB - Juvenile nemertean egg predators were able to efficiently transfer from the premolt cuticle to the postmolt cuticle of male and female crabs when the host molted. These worms also efficiently transferred from male to female hosts at copulation. The synchronized responses of the nemertean worms to host physiology and behavior dramatically concentrate the nemertean population on the sole food source required for worm reproduction: crab eggs. The efficient location of reproductive crabs by juvenile worms increased the likelihood that these worms can have significant effects on crab fisheries when worm population density is high. PMID- 29320247 TI - DAILY BUDGETS OF PHOTOSYNTHETICALLY FIXED CARBON IN SYMBIOTIC ZOANTHIDS. AB - We tested the hypothesis that some zoanthids are able to meet a portion of their daily respiratory carbon requirement with photosynthetic carbon from symbiotic algal cells (= zooxanthellae). A daily budget was constructed for carbon (C) photosynthetically fixed by zooxanthellae of the Bermuda zoanthids Zoanthus sociatus and Palythoa variabilis. Zooxanthellae have an average net photosynthetic C fixation of 7.48 and 15.56 ugC.polyp-1.day-1 for Z. sociatus and P. variabilis respectively. The C-specific growth rate (uc) was 0.215.day-1 for Z. sociatus and 0.152.day-1 for P. variabilis. The specific growth rate (u) of zooxanthellae in the zoanthids was measured to be 0.011 and 0.017.day-1 for Z. sociatus and P. variabilis zooxanthellae respectively. Z. sociatus zooxanthellae translocated 95.1% of the C assimilated in photosynthesis, while P. variabilis zooxanthellae translocated 88.8% of their fixed C. As the animal tissue of a polyp of Z. sociatus required 14.75 ugC.day-1 for respiration, and one of P. variabiis required 105.54 ugC.day-1, the contribution of zooxanthellae to animal respiration (CZAR) was 48.2% for Z. sociatus and 13.1% for P. variabilis. PMID- 29320248 TI - CHEMICAL MEDIATION OF APPETITIVE FEEDING IN A MARINE DECAPOD CRUSTACEAN: THE IMPORTANCE OF SUPPRESSION AND SYNERGISM. AB - The California spiny lobster, Panulirus interruptus, failed to exhibit appetitive feeding or locomotion in response to a low molecular weight fraction (< 1000 daltons) prepared from a sea water extract of muscle from abalone, a natural prey. This lack of response was caused by chemical suppressants, rather than by lack of stimulatory compounds. Excitatory responses were induced by single, low molecular weight compounds, but these responses were inhibited by suppressants which occur naturally in the muscle fraction. Amino and organic acids were found highly stimulatory to lobsters, but nucleotides and sugars were not. A mixture of monocarboxylic amino acids and dicarboxylic organic acids was much more effective in elliciting behavior than either of the constituents tested alone, at the same overall concentration. Mixtures which combined either ammonium or urea with amino or organic acids significantly reduced behavioral activity caused by these latter substances. Results indicate that tests of single chemicals cannot always reliably predict the stimulatory properties of solutions, combining even as few as two or more compounds. The stimulatory properties of complex odorants, including prey extracts, are best assessed by fractionating and then combining and testing the fractions in bioassays of factorial design. PMID- 29320249 TI - MICROSCOPIC OBSERVATIONS OF CRYPTIC POLAR BODY PRODUCTION AND SPIRALIAN ORGANIZATION IN ThE EGG OF ILYANASSA OBSOLETA. AB - Light microscopy of semi-thin sections and scanning electron microscopy reveal a pit at the animal pole of Ilyanassa obsoleta during Meiosis I. The incipient polar body is within the pit. Sections show the spindle at an oblique angle to the egg axis, an early expression of the spiralian organization of this egg. Surface changes on the incipient polar body are similar to those described by others for the polar lobe of Nassarius reticulatus. PMID- 29320250 TI - REPRODUCTION, EMBRYONIC ENERGETICS, AND THE MATERNAL-FETAL RELATIONSHIP IN THE VIVIPAROUS GENUS SEBASTES (PISCES: SCORPAENIDAE). AB - Reproduction in the scorpaenid genus Sebastes has been characterized as primitive ovoviviparity. In the black rockfish, S. melanops, egg size is small (0.8 mm), but the gestation period is 37 days and larvae at birth are well developed, with a remnant of yolk and the ability to initiate feeding. To test the hypothesis that this species is viviparous with additional maternal nutrition, we studied embryonic energetics and morphology. Catabolism during development utilized 64% of the yolk energy, resulting in a maximum yolk utilization efficiency of 36%, similar to oviparous fishes. Calorimetry, however, demonstrates that 81% of the initial yolk energy is present at birth. Thus approximately 70% of the catabolic energy is contributed by the maternal system during gestation. Microscopic analysis of embryonic epidermis suggests no specializations for nutrient uptake. Histological observations, however, reveal that the hindgut is functional approximately 22-25 days after fertilization. Thus, we suggest that nutrition occurs through consumption and assimilation of ovarian fluid. Reproductive modes in the Scorpaenidae have apparently evolved from simple oviparity in seven of eight subfamilies, to lecithotrophic viviparity in more primitive members of the subfamily Sebastinae, through matrotrophic viviparity in Sebastes. This pattern involved progressively longer retention of embryos until after organogenesis and functional differentiation of the gut, facilitating this rather primitive form of embryonic nutrition among matrotrophic viviparous species. PMID- 29320252 TI - PROTEIN SYNTHESIS IN NORMAL AND LOBELESS GASTRULAE OF ILYANASSA OBSOLETA. AB - Several hundred proteins synthesized by normal and lobeless Ilyanassa gastrulae were identified by the two-dimensional electrophoresis of polypeptides labeled in vivo with 35S-methionine. Acidic proteins were separated in the first dimension by isoelectric focusing and basic proteins by non-equilibrium pH gradient electrophoresis (NEPHGE). No qualitative differences were detected among either the acidic or basic polypeptides produced by normal or lobeless gastrulae. These findings show, for those peptides detected in this analysis, that (1) the stage specific changes in protein synthesis that occur in Ilyanassa embryos by gastrulation (Collier and McCarthy, 1981) are not polar lobe dependent, and (2) the polar lobe cytoplasm does not qualitatively affect the expression of either maternal or embryonic mRNAs during gastrulation. PMID- 29320251 TI - PROLINE BETAINE: A UNIQUE OSMOLYTE IN AN EXTREMELY EURYHALINE OSMOCONFORMER. AB - The extremely euryhaline mollusc, Elysia chiorotica, does not utilize intracellular free amino acids for cell volume regulation during osmotic stress. Instead, Elysia utilizes an osmolyte previously unknown from animals, proline betaine. Although proline betaine occurs in some plants and Elysia forms a symbiosis with an algae, the proline betaine in Elysia seems to be a product of the animal. PMID- 29320253 TI - FORMATION, ORGANIZATION, AND COMPOSITION OF THE EGG CAPSULE OF THE MARINE GASTROPOD, ILYANASSA OBSOLETA. AB - Embryos of the marine mud snail Ilyanassa obsoleta undergo early development within an egg capsule. After about a week of encapsulation, embryos hatch by releasing a chemical substance that removes the plug found at the apex of a capsule. However, the mechanism of action of this hatching substance remains poorly understood. To study how the hatching substance functions, we examined the composition of the egg capsule, particularly the plug region, to determine what the "substrate" of the hatching substance might be. We have also examined the formation and organization of the egg capsule to determine the origin and identity of the regions of a capsule that the hatching substance must remove. The results show that the Ilyanassa egg capsule is organized into four layers, the outer three of which are composed of protein and carbohydrate. Portions of the two inner layers of the capsule wall extend into the capsule apex and form the plug, which is dissolved by the hatching substance. The isolated capsule plug region contains three major glycoproteins resolved on sodium dodecyl sulfate polyacrylamide gels. Therefore, the hatching substance may be a protease similar in action to the enzymes released by many other embryos at hatching. PMID- 29320254 TI - SKELETAL STRENGTH OF ENCRUSTING CHEILOSTOME BRYOZOANS. AB - Encrusting cheilostome bryozoans structurally resemble aggregates of small boxes, with both frontal and vertical walls capable of resisting forces generated by water-borne debris or predators. Both the skeletal strength and design of the walls are important in determining the relative ability of the colony to resist damage. Two mechanical tests, puncture and compression, performed on nine species of tropical bryozoans reveal significant differences in skeletal strength both between species and between the outer and inner regions of colonies. Puncture stresses required to break through the frontal walls of zooids range from 0.8 to 291.0 MNm-2 for edge zooids and from 1.1 to 457.4 MNm-2 for inner zooids; compressive stresses required to damage the colony range from 4.4 to 16.9 MNm-2 for edge regions and 6.5 to 27.2 MNm-2 for inner regions. Ecological implications for these differences in skeletal strength are discussed with particular reference to resisting predation. From the mechanical test results, the material properties of shear strength (2.6-90.5 MNm-2) and compressive strength (8.2-110.0 MNm-2) are estimated for the frontal and vertical walls, respectively. Bryozoan wall material appears to be comparable in strength to such biological ceramics as coral, echinoid spine, bivalve shell, and vertebrate bone, but lower in strength than gastropod shell. PMID- 29320255 TI - PHYSIOLOGICAL AND MORPHOLOGICAL STATE OF THE SYMBIOTIC BACTERIA FROM LIGHT ORGANS OF PONYFISH. AB - Symbiotic, bioluminescent bacteria (Photobacterium leiognathi) within and directly removed from the light organs of freshly sacrificed Philippine and Japanese ponyfish (family Leiognathidae) were analyzed for light production, oxygen uptake, morphology, and density. Luminescence averaged 2.4 x 104 quanta.s 1 . cell-1 for bacteria from 24 fish (6 species in 3 genera), more than 10 times the maximum luminescences of P. leiognathi grown in culture. Light production (depending on the in vivo quantum yield for luminescence, 0.1 to 1.0) accounted for 1.7 to 17% of the total oxygen utilized by bacteria from the light organ, substantially more than found for P. leiognathi in culture. Bacteria from the light organ were non-motile, non-flagellated coccobacilloid to short rod-shaped cells (1.6 x 3.2 um), whereas in culture they showed motility and polar flagellation. In situ doubling time for the population of light organ bacteria was estimated to be approximately one day, or 20 to 30 times slower than in culture. Within the tubules of the light organ, the bacteria were solidly packed inside elongate, thinly-walled saccules, with one to 20 saccules tightly filling each light organ tubule. The saccules held the bacteria at a density (calculated from bacterial cell and saccule volumes) of approximately 1 x 1011 cells.ml-1, which is a density roughly 15 times greater than estimated from total light organ volume. These findings lead to a maximalluminescence, minimal-growth bacterial model of this symbiosis. PMID- 29320256 TI - Yet Another Glucose Variability Index: Time for a Paradigm Change? PMID- 29320257 TI - ENVIRONMENTAL CONTROL OF AMYLASE PHENOTYPE IN AMPHIPODS OF THE GENUS GAMMARUS. AB - The amylases of three species of Gammarus amphipods, G. palustris, G. mucronatus, and G. lawrencianus, were studied using polyacrylamide gel electrophoresis. In all three species there are two principal zones of activity (Amy-1 and Amy-2), but occasional individuals exhibit a third band(Amy-X). Amy-X variants are more common in the deeper water species and in collections made during late winter or early spring than in the shallower water species or in summer collections. Experimental work shows that Amy-X can be induced by a diet rich in amylose or glycogen, but not by amylopectin or other foods, and by reducing the temperature at which they are maintained. It is hypothesized that the relative expressions of Amy-X and Amy-1 vary seasonally, and that this variation is an adaptive response to seasonal variation in diet, or conditions for the hydrolysis of substrate. PMID- 29320258 TI - CHROMOSOME POLYMORPHISM IN GOBIUS PAGANELLUS, LINNEO 1758 (PISCES, GOBIIDAE). AB - In the present investigation the diploid numbers 2n = 45, 2n = 46, 2n = 47, and 2n = 48 have been determined for Gobius paganellus. Specimens of different sex were found to have exactly the same karyotype. This species is characterized by two fundamental numbers: NF = 47, and NF = 48. Chromosome polymorphism due to different chromosome rearrangements within the A-type complement is present in this species. PMID- 29320259 TI - NUTRIENT TRANSLOCATION IN THE SEA STAR: WHOLE-BODY AND MICROAUTORADIOGRAPHY AFTER INGESTION OF RADIOLABELED LEUCINE AND PALMITIC ACID. AB - Using the sea star, Asterias rubens, whole-body autoradiography has been employed to follow the distribution and the pathways of translocation of both soluble and tissue-incorporated label derived from orally administered 14C-labeled leucine or palmitic acid. Radioactivity remains localized predominantly in the stomach and pyloric caeca until sixteen days after ingestion. Labeling of the perivisceral coelomic cavity in regions close to the stomach shortly after ingestion points to initial displacement of ingested nutrients through the coelomic fluid and coelomocytes. After oral administration of labeled palmitic acid, distinct labeling of the gastric hemal tufts, axial organ, and aboral ring prior to labeling of the gonads also suggests the involvement of hemal tissue and surrounding perihemal coelomic sinuses in storage and translocation of substances needed for gamete nutrition. Microautoradiography of gonad tissue reveals a rapid labeling of the walls of the genital coelomic sinus, the ground substance of the genital hemal sinus, and, after prolonged incubation, the germinal epithelium. Little or no label is incorporated into the outer sac of the gonad wall. The results are discussed in terms of current knowledge on nutrient translocation in the sea star. PMID- 29320260 TI - COPULATION BY HYPODERMIC INJECTION IN THE NUDIBRANCHS PALIO ZOSTERAE AND P. DUBIA (GASTROPODA, OPISTHOBRANCHIA). AB - The Pacific nudibranch Palio (= Polycera) zosterae and the Atlantic P. dubia copulate in a manner different from that of most nudibranchs. Nudibranchs are hermaphroditic and normally copulate reciprocally, with the intromittant organ of one inserted in the vaginal opening of the other. P. zosterae and P. dubia lack a complete vaginal duct. Copulation is usually reciprocal but involves the piercing of the body wall by a barbed, eversible penial cirrus. If the cirrus injects exogenous sperm into the body wall or the haemocoel, the sperm are phagocytosed by blood cells. If the cirrus penetrates the gonad, exogenous sperm may be injected into a spermatogenic acinus. After traveling down the hermaphroditic duct to the anterior reproductive organs, these sperm presumably are sorted from endogenous sperm and stored in the receptaculum seminis. The organization of the reproductive system in Palio differs markedly from that in members of the closely related genus Polycera. PMID- 29320261 TI - PHOTOBIOLOGY OF THE SYMBIOTIC SEA ANEMONE, ANTHOPLEURA ELEGANTISSIMA: DEFENSES AGAINST PHOTODYNAMIC EFFECTS, AND SEASONAL PHOTOACCLIMATIZATION. AB - The sea anemone Anthopleura elegantissima, which contains photosynthetic symbionts (zooxanthellae), responds both biochemically and behaviorally to the combined environmental stresses of exposure to sunlight and photosynthetically generated hyperbaric O2. Activities of the enzymes superoxide dismutase (SOD) and catalase, which act in concert as defenses against oxygen toxicity, parallel the distribution of chlorophyll. A. elegantissima shows a finely controlled contraction behavior which shades the zooxanthellae and reduces O2 production, but which leaves the body column tissues directly exposed to sunlight. However, the body column contains disproportionately high SOD and catalase activities as defenses against photodynamic damage. This additional role of SOD is demonstrated by shade-adapted aposymbiotic anemones in which SOD and catalase activities increase by 590% and 100% respectively following a 7 day exposure to sunlight. In response to elevated levels of O2 and sunlight exposure, A. elegantissima attaches gravel and other debris to its body surface which serves as a sunscreen that effectively reduces zooxanthella expulsion during exposure to bright sunlight. Finally, anemone chlorophyll content fluctuates on a seasonal basis, varying inversely with mean solar radiation. These seasonal changes are not due to corresponding changes in the number of algal cells, but rather to changes in the chlorophyll content and chlorophyll a:c2 ratio of a fairly uniform standing crop of zooxanthellae. PMID- 29320262 TI - CRITICAL WEIGHTS FOR METAMORPHOSIS IN THE TOBACCO HORNWORM, MANDUCA SEXTA. AB - Fifth-instar larvae of the tobacco hornworm underwent a supernumerary larval molt under several feeding regimens. Supernumerary molting occurred only when the molt was initiated at a live weight less than about 3 g; at higher weights pupation took place. The supernumerary sixth instars were normal in appearance and behavior and went on to form normal pupae only when the fifth instar had begun at weights less than 1 g. Otherwise the supernumerary sixth instars exhibited precocious metamorphosis of their crochets and imaginal discs and failed to undergo normal pupation. Thus, the commitment to pupal development appears to occur in stages. A first stage, initiated at a weight of about 1 g, commits the crochets and imaginal discs to metamorphosis at the next molt. A second stage, entered at a weight of about 3 g, permits the full and complete pupation of the remaining tissues; this transition probably reflects the elimination of juvenile hormone (JH). Starvation apparently alters the normal patterns of ecdysone production, breakdown, or sensitivity so as to elicit ecdysone-dependent development at lower than normal weights. When starvation results in fifth-instar larvae initiating a developmental response at weights below 3 g, a supernumerary larval molt occurs. But in this case the critical effect of starvation is on the timing of the molt rather than on the JH titer, since the latter even in normally fed early fifth instars is high at weights below 3 g. PMID- 29320263 TI - DIGESTION AND DISTRIBUTION OF TRIPALMITOYLGLYCEROL IN DIPLODON DELODONTUS (MOLLUSCA, BIVALVIA). AB - Fat digestion, absorption, and transport in the fresh water mollusc Diplodon delodontus were studied after 1 and 6 h of force-feeding 14C tripalmitoylglycerol and 1-14C palmitic acid. In a 1 h period, the mollusc was able to hydrolyze more than 50% of the triacylglycerol to free acids monoacyl and diacylglycerols. Digestion and absorption was completed before the 6 h feeding, and most of the label was eliminated. Hydrolysis occurred primarily in the stomach. The mollusc absorbed the products of hydrolysis and apparently triacylglycerol molecules, too. During the period of tripalmitoylglycerol digestion (1 h), the labeled palmitic acid was transported by the hemolymph in the free acid, monoacylglycerol, and triacylglycerol fractions that were also the principal components found in the stomach. During the post absorption period (6 h) the label was principally bound to triacylglycerols. When 1-14C palmitic acid was fed to D. delodontus, the acid was absorbed and the label transported exclusively in the free acid fraction of the hemolymph during the first hour. At 6 h ~75% was still transported as free acid and the rest as triacylglycerol. The free palmitic acid was incorporated in the soft tissues of the mollusc and slowly esterified to triacylglycerols. PMID- 29320264 TI - DETERMINANTS OF LARVAL MOLT INITIATION IN THE TOBACCO HORNWORM, MANDUCA SEXTA. AB - Hornworm larvae adhere to Dyar's rule under normal growth conditions, increasing their live weight by an average of 5- to 6-fold from the outset of one instar to the next. This adherence to Dyar's rule is largely maintained even in instars subsequent to those in which larvae have been severely malnourished. The importance of relative weight gain for the normal onset of larval molting contrasts with the requirement for attainment of an absolute body weight prior to pupation. But body size is by no means the sole cue for the initiation of a larval molt. Thus, under conditions of malnutrition larvae can initiate a molt at any weight and can do so even in the absence of any weight gain in an instar: in these circumstances the duration of an instar is inversely related to the weight at the outset of malnutrition. In larvae fed ad lib as well as in malnourished larvae the initiation of a molt appears to be limited to a discrete phase of the photocycle. The failure of larvae to molt on schedule at body weights lower than those predicted by Dyar's rule cannot be attributed to an inability of the brain to stimulate ecdysone-dependent development as is the case in diapausing pupae. Though body size, instar duration, and photocycle all interact to determine the onset of the molt, the role of the brain remains ill-defined. PMID- 29320265 TI - RELATIONSHIPS BETWEEN FREE CUPRIC ION CONCENTRATIONS IN SEA WATER AND COPPER METABOLISM AND GROWTH IN CRAB LARVAE. AB - Crab larvae (Rhithropanopeus harrisiiere exposed to a range of free cupric ion concentrations, [Cu2+], regulated in sea water by a metal chelate buffer system. We found a biphasic relationship between intracellular copper distribution and [Cu2+] in sea water. At [Cu2+] within the ambient range (10-12.4 to 10-10.6 M), cytosolic copper was associated with both metallothionein (MT) and high molecular weight (HMW) ligands, and was independent of external [Cu2+]. At higher [Cu2+], copper was also associated with very low molecular weight (VLMW) ligands, and accumulated in this ligand pool and the MT pool as external [Cu2+] increased. In marked contrast, copper in the HMW ligand pool did not correlate with [Cu2+] in sea water over the entire range of exposures. Reductions in larval growth occurred at greater than estimated ambient [Cu2+] and correlated with copper accumulation in the MT and VLMW pools. PMID- 29320266 TI - FOOD-INDUCED SIZE-SPECIFIC MOLT SYNCHRONY OF THE SAND CRAB, EMERITA ANALOGA (STIMPSON). AB - Synchronous molting was found in both laboratory and field populations of the intertidal, filter feeding anomuran Emerita analoga. Molt synchrony resulted in distinct peak and trough molting periods which were apparently independent of lunar phase and not pheromonally entrained. The intermolt period for Emerita was correlated with animal size. Laboratory experiments showed that the molt cycles of a previously synchronized group of female Emerita analoga could be desynchronized and resynchronized by altering feeding regimes. It is proposed that in nature the increase in phytoplankton, which characterizes the spring bloom, entrains the synchronous molting rhythm observed in the field. Synchrony tends to be obscured in field samples composed of broad size ranges because of the size-specific character of the intermolt period. For animals which molt synchronously, estimates of growth rate based on molt frequency data extrapolated from field samples can be variable and misleading. PMID- 29320267 TI - THE DIMORPHIC CLAWS OF THE HERMIT CRAB, PAGURUS POLLICARIS: PROPERTIES OF THE CLOSER MUSCLE. AB - The first pair of chelipeds of the flat clawed hermit crab (Pagurus pollicaris) are dimorphic. The crusher claw is always on the right side and is larger than the cutter claw on the left. The closer muscle in the crusher claw has a wet weight that is 3.4 times greater than that in the smaller cutter claw. The closer muscle fiber types are different in the two claws. The crusher closer muscle has fibers with long (9-14 um) sarcomeres, a high thin to thick filament ratio, and low myofibrillar ATPase activity; these fibers are presumably slow. The cutter closer, by contrast, has two types of fibers that are regionally distributed within the muscle. Fibers located on the dorsal and ventral margins of the muscle have long (8-13 um) sarcomeres, a high thin to thick filament ratio, low myofibrillar ATPase activity, and are presumably slow fibers. In the central portion of the cutter closer muscle, however, there is a band of fibers with short sarcomeres and high myofibrillar ATPase activity. These features suggest that these fibers are fast. However, the high thin to thick filament ratio found in these "fast" muscle fibers would argue against this presumption. Finally, sarcomere length measurements taken from closer muscle fibers in other thoracic appendages revealed a bimodal distribution of fiber types similar to that observed in the cutter claw. PMID- 29320268 TI - HOST FEEDING REGIME AND ZOOXANTHELLAL PHOTOSYNTHESIS IN THE ANEMONE, AIPTASIA PALLIDA (VERRILL). AB - Oxygen production was measured in the anemone Aiptasia pallida (Verrill) maintained at varying feeding regimes in the laboratory. Host feeding regime had no significant effect on: (1) zooxanthellal gross photosynthesis (GPPmax) expressed as ug O2 . ug chl a-1 . h-1 or ug O2 . 106 zooxanthellae-1 . h-1; (2) the light intensity at which 1/2 GPPmax occurs (Km); or (3) the chlorophyll a content of the zooxanthellae. Starvation significantly reduced GPPmax expressed as ug O2 . mg host protein-1 . h-1 and zooxanthellal density within the host. Zooxanthellal translocation efficiency was measured by short term incubations of anemones in NaH14CO3. Host feeding regime had no effect on the percentage of 14C translocated to the host. These results suggest that, under these conditions, starvation did not alter the photosynthetic capability of the zooxanthellae but decreased total photosynthate translocated to the host by decreasing zooxanthellal density within the host. PMID- 29320269 TI - PHOTOSYNTHETIC PRODUCTION BY THE CORAL REEF ANEMONE, LEBRUNIA CORALLIGENS WILSON, AND BEHAVIORAL CORRELATES OF TWO NUTRITIONAL STRATEGIES. AB - The coral reef anemone Lebrunia coralligens Wilson bears, in addition to its lanceolate, feeding tentacles, lobate pseudotentacles which are shown to be photosynthetic organs. Anemones exposed to light demonstrate a net oxygen production and, when incubated in NaH14CO3 in the light, incorporate 14C into the zooxanthellae and animal tissue. Diurnal rhythms of pseudotentacle expansion and contraction are under the control of ambient light but are modified by the animal's nutritional status. Unfed animals utilize their lobate pseudotentacles to obtain the maximum nutritional uptake by autotrophy while fed animals reduce their autotrophic intake. However, lanceolate tentacle expansion is primarily a feeding response and is augmented by a higher nutritional state. It is concluded that anemone behavior is an expression of the two nutritional strategies. PMID- 29320270 TI - PATTERNS OF WHOLE COLONY PREY CAPTURE IN THE OCTOCORAL, ALCYONIUM SIDERIUM. AB - Colonies of a boreal octocoral, Alcyonium siderium, preferentially catch prey on specific regions of the colony at certain flow speeds of low turbulence. Colonies feeding on brine shrimp cysts capture prey preferentially on the upstream side of the colony under low flow conditions (2.5 cm . s-1). At intermediate flow speeds (9.0 cm . s-1), prey capture is uniformly distributed around the circumference of the colonies, while at higher flow speeds (19.0 cm . s-l), prey capture again becomes asymmetric and downstream polyps capture the most prey. At higher levels of free-stream turbulence, these asymmetric prey capture distributions around the colony disappear; in the vertical direction, prey capture is asymmetric over the surface of the colony at all flow speeds tested, with polyps nearer the top of the colony capturing the most prey only at the lowest speeds. Asymmetrical filtration results from (1) increasing mechanical deformation of polyps into an orientation unfavorable for prey capture with increasing flow speed, and (2) differential prey concentrations in the boundary layer of the colony in the downstream direction. For non-motile particles, the filtration performance of this passive suspension feeder appears governed only by the flow speed and turbulence, the mechanical behavior of the filter elements, and the motion of the particles in the boundary layer of the colony. PMID- 29320271 TI - OBSERVATIONS ON THE LONG-TERM POPULATION DYNAMICS OF THE PERENNIAL ASCIDIAN, ASCIDIA MENTULA O. F. MULLER, ON THE SWEDISH WEST COAST. AB - Six populations of Ascidia mentula O. F. Muller on subtidal vertical rock walls were monitored continually for 12 years (1971-1982) using stereophotographic techniques. Three stations at two depth levels were observed, along a hydrographical gradient extending 100 km from the sheltered inner parts of the Gullmarsfjord to the exposed archipelago off the Swedish west coast. Population densities increased during 1971-1976, and gradually declined from 1976. Recruitment was density-dependent while mortality was density-independent. Temporal covariation in recruitment between stations and depths separated fjord stations into two independent, correlated patterns:(1) the exposed archipelago station and the shallow semi-sheltered fjord station from (2) the shallow sheltered fjord station from the sheltered and deep semi-sheltered fjord station. Temporal covariation in mortality separated the exposed station from the sheltered fjord stations suggesting different mortality factors. Histological analysis of gonads and analysis of photographically monitored recruitment revealed a seasonal reproductive pattern at 15 m depth while continuous reproduction and recruitment was observed in deeper populations. Temporal patterns of population density appeared to be related to long-term hydrographic changes mediated by variation in recruitment. Mortality caused by predation was not observed but disturbance and dislocation by sea urchins was an important mortality factor, especially at exposed sites. PMID- 29320272 TI - Ethical review in Avian Pathology. PMID- 29320276 TI - How Should the Epidemiology of Acute Hepatitis C and Opioid Use Affect Health Policy Decision-Making? PMID- 29320277 TI - Rothman et al. Respond. PMID- 29320278 TI - Prioritizing Posttrafficking Care for Trafficked Individuals. PMID- 29320279 TI - Impact of Tax Innovations on Families With Young Children. PMID- 29320280 TI - Opioids, Hepatitis C Virus Infection, and the Missing Vaccine. PMID- 29320281 TI - On Creating Positive Spillovers to Improve the Health of Populations: A Public Health of Consequence, February 2018. PMID- 29320282 TI - Public Health Issues in 2016 Presidential Campaign Communications. PMID- 29320283 TI - Prevention of Elevated Blood Lead Levels Among Child Refugees and Other Susceptible Populations. PMID- 29320284 TI - Cross-Sector Partnerships Will Shape the Future of Public Health. PMID- 29320286 TI - Tobacco Policies and Alcohol Sponsorship at Lesbian, Gay, Bisexual, and Transgender Pride Festivals: Time for Intervention. PMID- 29320287 TI - Leprosy: An Early Exemplar of the Transformation of 20th Century American Medicine. PMID- 29320288 TI - Policy Evaluation With Incomplete Data: Assessing the Affordable Care Act Breastfeeding Provision. PMID- 29320289 TI - Legal and Administrative Feasibility of a Federal Junk Food and Sugar-Sweetened Beverage Tax to Improve Diet. AB - OBJECTIVES: To evaluate legal and administrative feasibility of a federal "junk" food (including sugar-sweetened beverages [SSBs]) tax to improve diet. METHODS: To assess food definitions and administration models, we systematically searched (1) PubMed (through May 15, 2017) for articles defining foods subject to taxes, and legal and legislative databases as well as online for (2) US federal, state, and tribal junk food tax bills and laws (January 1, 2012-February 28, 2017); SSB taxes (January 1, 2014-February 28, 2017); and international junk food tax laws (as of February 28, 2017); and (3) federal taxing mechanisms and administrative methods (as of February 28, 2017). RESULTS: Articles recommend taxing foods by product category, broad nutrient criteria, specific nutrients or calories, or a combination. US junk food tax bills (n = 6) and laws (n = 3), international junk food laws (n = 2), and US SSB taxes (n = 10) support taxing foods using category based (n = 8), nutrient-based (n = 1), or combination (n = 12) approaches. Federal taxing mechanisms (particularly manufacturer excise taxes on alcohol) and administrative methods provide informative models. CONCLUSIONS: From legal and administrative perspectives, a federal junk food tax appears feasible based on product categories or combination category-plus-nutrient approaches, using a manufacturer excise tax, with additional support for sugar and graduated tax strategies. PMID- 29320290 TI - Time for a Top-Down Approach to Hearing Aid Affordability and Accessibility. PMID- 29320291 TI - Funding for Gun Violence Research Is Key to the Health and Safety of the Nation. PMID- 29320292 TI - Further Considerations for Research on Human Trafficking. PMID- 29320293 TI - The Challenges of Monitoring Illicit Trade Should Not Obscure the Success of Tobacco Tax Policy. PMID- 29320294 TI - Arresting Leprosy: Therapeutic Outcomes Besides Cure. AB - This essay focuses on the use of the concept of "arrest" in Hansen's disease (leprosy) in the United States in the early to middle part of the 20th century, as well as the transformations the concept underwent with the arrival of sulfone drugs and the implications of these changes for patients and public health officers. An "arrest" was a therapeutic outcome characterized by a long course of treatment, noncontagiousness, a very small chance of reactivation, and a need for postdischarge maintenance that depended on sociomedical infrastructures beyond the clinic as well as self-imposed lifestyle limitations. The concept of disease arrest shows that experts and laypeople alike have valued therapeutic outcomes other than "cure" that signal certain optimal therapeutic milestones, despite the practical difficulties they imply and despite the fact that they do not promise a return to a pre-illness stage. PMID- 29320295 TI - Rothman et al. Respond. PMID- 29320297 TI - Estimates Research on Human Trafficking. PMID- 29320296 TI - Is Forgiveness a Public Health Issue? PMID- 29320299 TI - Comprehensive Restaurant-Sector Changes Are Essential to Reduce Obesity Risk for All Americans. PMID- 29320300 TI - AJPH Global News. PMID- 29320301 TI - Using Cost-Related Medication Nonadherence to Assess Social and Health Policies. PMID- 29320302 TI - Federal Right-to-Try Legislation - Threatening the FDA's Public Health Mission. PMID- 29320303 TI - Time of day and short-duration high-intensity exercise influences on coagulation and fibrinolysis. AB - Exercise has been demonstrated to have considerable effects upon haemostasis, with activation dependent upon the duration and intensity of the exercise bout. In addition, markers of coagulation and fibrinolysis have been shown to possess circadian rhythms, peaking within the morning (0600-1200 h). Therefore, the time of day in which exercise is performed may influence the activation of the coagulation and fibrinolytic systems. This study aimed to examine coagulation and fibrinolytic responses to short-duration high-intensity exercise when completed at different times of the day. Fifteen male cyclists (VO2max: 60.3 +/- 8.1 ml kg 1 min-1) completed a 4-km cycling time trial (TT) on five separate occasions at 0830, 1130, 1430, 1730 and 2030. Venous blood samples were obtained pre- and immediately post-exercise, and analysed for tissue factor (TF), tissue factor pathway inhibitor (TFPI), thrombin-anti-thrombin complexes (TAT) and D-Dimer. Exercise significantly increased plasma concentrations of TF (p < .0005), TFPI (p < .0006), TAT complexes (p < .0012) and D-Dimer (p < .0003). There was a time-of day effect in pre-exercise TF (p = .004) and TFPI (p = .031), with 0830 greater than 1730 (p .001), while 1730 was less than 2030 h (p = .008), respectively. There was no significant effect of time of day for TAT (p = .364) and D-Dimer (p = .228). Power output, TT time and heart rate were not significantly different between TTs (p > .05); however, percentage VO2max was greater at 1730 when compared to 2030 (p = .04). Due to a time-of-day effect present within TF, peaking at 0830, caution should be applied when prescribing short-duration high intensity exercise bout within the morning in populations predisposed to hypercoagulability. PMID- 29320304 TI - Complications of Sling Surgery for Stress Urinary Incontinence Among Female Military Beneficiaries. AB - BACKGROUND: Prior studies of complications after sling surgery excluded the large number of women in military treatment facilities (MTFs). OBJECTIVE: To characterize the postoperative complication rates after sling surgery for Stress urinary incontinence (SUI) within MTFs in the United States. MATERIALS AND METHODS: Retrospective cohort study of women aged 18 and older, with SUI, and who underwent either an outpatient or inpatient mid-urethral sling placement for SUI in any MTF in the United States between January 1, 2011 and December 31, 2012. RESULTS: During the study period, 348 surgeons performed 1632 slings. The average patient age was 47.2 years, and 22.4% of the patients had a concomitant pelvic organ prolapse procedure. Overall, 45.5% of subjects had at least one postoperative complication. Of the specific complications, urologic infectious complications were the most frequent, occurring in 25.2% of patients. Overall, only 0.9% of patients underwent a repeat incontinence procedure. In multivariate analyses, concomitant pelvic organ procedure was associated with an increased risk of bladder outlet obstruction and noninfectious urologic complications. Those with a Charlson comorbidity index score of 1 or more were more likely to have an infectious complication and a new diagnosis of pelvic pain. Women older than the median age were less likely than those below to experience treatment failure and a new diagnosis of pelvic pain. CONCLUSIONS: The population of women with SUI undergoing sling surgery at MTFs is a young population with postoperative complication rates lower than previously reported. However, the absolute overall complication rate is still high, specifically related to urinary tract infections, suggesting that significant opportunities exist for quality improvement. PMID- 29320305 TI - Social physique anxiety and physical activity behaviour of male and female exercisers. AB - Despite females consistently reporting greater social physique anxiety (SPA), previous literature has yet to demonstrate whether SPA gender differences are linked to the way males and females perform physical activity. This study investigated an association between SPA and physical activity frequency, history of exercise, and physical activity intensity. Participants were represented by currently active users (N = 33 males; N = 31 females) of an on-campus university run gym and completed a background physical activity questionnaire and the nine item Social Physique Anxiety Scale. Participants also performed an exercise session at a self-selected level of exertion, with the intensity of each session measured via heart rate monitor. SPA was not associated with physical activity frequency, history of exercise (length of gym membership), or intensity for male and female exercisers. With respect to male participants, females reported higher SPA and a preference for performing higher intensity physical activity. Females and males also indicated a preference for performing aerobic and anaerobic physical activity respectively. Our findings suggest the experience of SPA does not deter body-conscious individuals from the performance of regular physical activity. Findings also suggest the discrepancy in male and female SPA is not linked to differences in the way physical activity is performed. PMID- 29320306 TI - Disease staging and sub setting of interstitial lung disease associated with systemic sclerosis: impact on therapy. AB - INTRODUCTION: Interstitial lung disease (ILD) is the most serious complication of systemic sclerosis (SSc). There is no accepted guidance as to which clinical, radiological or physiological thresholds should prompt initiation or changes in treatment. Furthermore, some patients with extensive disease remain stable without the need for intervention whilst others with limited disease at the outset, experience a precipitous decline. Areas covered: In this article, evidence for the integration of a number of disease-specific and patient-related domains are discussed and proposed. Introduction and maintenance of therapy requires a nuanced understanding of these factors and is crucial when weighing up the risks and benefits of immunomodulation. The evidence for the existing treatment modalities is discussed and the future directions for management of patients with SSc-ILD, which may include antifibrotic or biologic therapy, are explored. Expert commentary: In the management of SSc-ILD, a multidisciplinary team approach which integrates physiology and radiology with the patient at the centre of the process is crucial for effective management and provision of the best outcomes. PMID- 29320307 TI - Musculoskeletal injuries in professional modern dancers: a prospective cohort study of 15 years. AB - We analysed work-related musculoskeletal injuries (WMSI) in two modern dance companies to determine whether injury rates decreased and patterns altered compared to previous 3-yr and 6-yr audits (0.48 and 0.25/1000-hrs exposure respectively). In this prospectively designed 15-yr cohort study, data were collected in 30-dancer Company-1 and 12-dancer Company-2. In-house physical therapists tracked WMSI and time-loss-injuries for 159 dancers (42 dancers/yr). 15-yrs were grouped into five 3-yr blocks for comparison with prior audits. Negative binomial logistic regression analyses were conducted with exposure-hrs converted to the natural log and used as the offset variable. Block and company were categorical predictors for dependent variables: WMSI, time-loss-injuries, trauma-injuries and overuse-injuries (p < 0.05). 69% of dancers reported WMSI; 45% sustained at least one time-loss-injury. Company-1, with greater annual exposure, was 1.6-times more likely to sustain time-loss-injuries (p = 0.016, CI = 1.095-2.422) and 5.6-times more likely to sustain time-loss overuse-injuries (p = 0.003, CI = 1.812-17.327). Compared to Block-1, WMSI and time-loss-injuries decreased in Blocks-2, 3, and 5 (p <= 0.027). The ratio of time-loss overuse to trauma-injuries was reversed, with trauma-injuries accounting for over 80% of injuries by Block 5. Time-loss-injuries averaged 0.16 injuries/1000-hrs, lower than rates in ballet and sports. Decreased injury rates and changed injury patterns demonstrate efficacious injury management and prevention programming. PMID- 29320308 TI - When the CHIPs Are Down - Health Coverage and Care at Risk for U.S. Children. PMID- 29320309 TI - Isocapnic buffering phase: a useful indicator of exercise endurance in patients with coronary artery disease. AB - OBJECTIVES: The significance of the isocapnic buffering (IB) phase - the period between the first ventilatory threshold (1st VT) and respiratory compensation point (RCP) - has not been adequately established in patients. This study aimed to determine the clinical significance of the IB phase in patients with coronary artery disease (CAD). METHODS: This retrospective study included data of sixty two CAD patients after coronary artery bypass graft (CABG) or percutaneous coronary intervention (PCI) performed in a single medical center between 2010 - 2014. According to their physical conditions, the patients performed incremental cardiopulmonary exercise test (CPET) using a cycle ergometer by the ramp of 5-20 W/min. Correlations between the corrected IB phase duration and age, body mass index (BMI), left ventricular ejection fraction (LVEF), and CPET parameters were evaluated using Pearson correlation coefficients. Variables predicting peak oxygen consumption (VO2) were evaluated using multiple regression. RESULTS: Peak VO2 (p < 0.001), VO2 at RCP (p < 0.001), ?O2/?WR slope (p < 0.001), maximal partial pressure of end tidal CO2 (PetCO2) (p = 0.0012), VE/VCO2 slope (p = 0.010), BMI (p = 0.012), and age (p = 0.017) were significantly correlated, whereas LVEF (p = 0.246) and VO2 at 1st VT (p = 0.179) were not significantly correlated with the corrected IB phase duration. In multiple regression analysis, the corrected IB phase duration, VO2 at 1st VT, and ?O2/?WR slope were significantly associated with peak VO2. CONCLUSION: The findings indicate that the IB phase duration is a useful indicator of peripheral cardiopulmonary function and endurance performance in CAD patients. These findings could assist the exercise prescription of cardiac rehabilitation for patients with CAD. PMID- 29320310 TI - Comparison of current recruitment process for specialty or residency training in UK and USA. PMID- 29320311 TI - Development and Validation of a Risk Prediction Model for Acute Kidney Injury After the First Course of Cisplatin. AB - Purpose Cisplatin-associated acute kidney injury (C-AKI) is common. We sought to develop and validate a predictive model for C-AKI after the first course of cisplatin. Methods Clinical and demographic data were collected on patients who received cisplatin between 2000 and 2016 at two cancer centers. C-AKI was defined as a 0.3 mg/dL rise in serum creatinine within 14 days of receiving cisplatin. Using multivariable logistic regression models with C-AKI as the primary outcome, we created a scoring model from the development cohort (DC) and tested it in the validation cohort (VC). Results C-AKI occurred in 13.6% of 2,118 patients in the DC and in 11.6% of 2,363 patients in the VC. Factors significantly associated with C-AKI included age 61 to 70 years (odds ratio [OR], 1.64 [95% CI, 1.21 to 2.23]; P = .001) and 71 to 90 years (OR, 2.97 [95% CI, 2.06 to 4.28]; P < .001) compared with <= 60 years; cisplatin dose 101 to 150 mg (OR, 1.58 [95% CI, 1.14 to 2.19]; P = .007) and > 150 mg (OR, 3.73 [95% CI, 2.68 to 5.20]; P < .001) compared with <= 100 mg; a history of hypertension (OR, 2.10 [95% CI, 1.54 to 2.72]; P < .001) compared with no hypertension; and serum albumin 2.0 to 3.5 g/dL (OR, 2.21 [95% CI, 1.62 to 3.03]; P < .001) compared with > 3.5 g/dL. The baseline estimated glomerular filtration rate was not significantly associated with the risk of C-AKI. The c-statistics of the score-based model in the DC and the VC were 0.72 (95% CI, 0.69 to 0.75) and 0.70 (95% CI, 0.67 to 0.73), respectively. Scores of 0, 3.5, and 8.5 were associated with a probability of C AKI of 0.03 (95% CI, 0.03 to 0.05), 0.12 (95% CI, 0.11 to 0.14), and 0.51 (95% CI, 0.43 to 0.60), respectively. Conclusion A score-based model created by using the patient's age, cisplatin dose, hypertension, and serum albumin is predictive of C-AKI. PMID- 29320312 TI - Targeted Therapy for Advanced Solid Tumors on the Basis of Molecular Profiles: Results From MyPathway, an Open-Label, Phase IIa Multiple Basket Study. AB - Purpose Detection of specific molecular alterations in tumors guides the selection of effective targeted treatment of patients with several types of cancer. These molecular alterations may occur in other tumor types for which the efficacy of targeted therapy remains unclear. The MyPathway study evaluates the efficacy and safety of selected targeted therapies in tumor types that harbor relevant genetic alterations but are outside of current labeling for these treatments. Methods MyPathway ( ClinicalTrials.gov identifier: NCT02091141) is a multicenter, nonrandomized, phase IIa multiple basket study. Patients with advanced refractory solid tumors harboring molecular alterations in human epidermal growth factor receptor-2, epidermal growth factor receptor, v-raf murine sarcoma viral oncogene homolog B1, or the Hedgehog pathway are treated with pertuzumab plus trastuzumab, erlotinib, vemurafenib, or vismodegib, respectively. The primary end point is investigator-assessed objective response rate within each tumor-pathway cohort. Results Between April 1, 2014 and November 1, 2016, 251 patients with 35 different tumor types received study treatment. The efficacy population contains 230 treated patients who were evaluated for response or discontinued treatment before evaluation. Fifty-two patients (23%) with 14 different tumor types had objective responses (complete, n = 4; partial, n = 48). Tumor-pathway cohorts with notable objective response rates included human epidermal growth factor receptor-2-amplified/overexpressing colorectal (38% [14 of 37]; 95% CI, 23% to 55%) and v-raf murine sarcoma viral oncogene homolog B1 V600-mutated non-small-cell lung cancer (43% [six of 14]; 95% CI, 18% to 71%). Conclusion The four currently approved targeted therapy regimens in the MyPathway study produced meaningful responses when administered without chemotherapy in several refractory solid tumor types not currently labeled for these agents. PMID- 29320313 TI - Acute Radiologic Manifestations of America's Opioid Epidemic. AB - The United States is in the midst of an opioid use epidemic, which has severe medical, social, and economic consequences. Addictions to and abuse of prescription and illicit opioids are increasing, and emergency department radiologists are increasingly being faced with the task of examining patients who present with opioid-related complications. These complications may be the result of direct drug toxicity or nonsterile injection of the drugs. Neurologic, musculoskeletal, cardiopulmonary, genitourinary, and gastrointestinal complications may be evident at diagnostic imaging in emergent settings. Heroin induced leukoencephalopathy, cerebral septic emboli, mycotic arterial aneurysms, soft-tissue infections, and infective endocarditis are some of the conditions that patients may be found to have after they present to the emergency department. In this article, the above topics, including clinical features, pathophysiology, imaging findings, and treatment options, are reviewed. Recognizing the limitations of diagnostic imaging modalities that are available to radiologists is equally important, as some conditions can be successfully diagnosed after the initial triage-for example, transesophageal echocardiography can be performed to diagnose infective endocarditis. The emergency department radiologist may be responsible for identifying acute conditions, which can be life threatening. Some of the more common emergent opioid-related conditions and complications are reviewed, with specific emphasis on cases in which emergency department radiologists encounter conditions for which additional expertise is required. Becoming familiar with the conditions directly related to the current opioid epidemic will enable the diagnosis of these entities in a timely and accurate manner. (c)RSNA, 2018. PMID- 29320314 TI - Focus on Readers' Needs in 2017 and Expanded Journal Features for 2018: Editor's Page. PMID- 29320315 TI - Contrast Enema Examination: Technique and Essential Findings: RadioGraphics Fundamentals | Online Presentation. PMID- 29320316 TI - Translabial US and Dynamic MR Imaging of the Pelvic Floor: Normal Anatomy and Dysfunction. AB - Pelvic floor dysfunction (PFD) is a common condition that typically affects women older than 50 years and decreases the quality of life. Weakening of support structures can involve all three pelvic compartments and cause a combination of symptoms, including constipation, urinary and fecal incontinence, obstructed defecation, pelvic pain, perineal bulging, and sexual dysfunction. The causes of PFD are complex and multifactorial; however, vaginal delivery is considered a major predisposing factor. Physical examination alone is limited in the evaluation of PFD; it frequently leads to an underestimation of the involved compartments. Imaging has an important role in the clinical evaluation, yielding invaluable information for patient counseling and surgical planning. Three- and four-dimensional translabial ultrasonography (US) is a relatively new imaging modality with high accuracy in the evaluation of PFD such as urinary incontinence, pelvic organ prolapse, and puborectalis avulsion. Evaluation of mesh implants is another important indication for this modality. Dynamic magnetic resonance (MR) imaging of the pelvic floor is a well-established modality for pelvic floor evaluation, with high-resolution images yielding detailed anatomic information and dynamic sequences yielding functional data. Specific protocols and dedicated image interpretation are required with both of these imaging methods. In this article, the authors review the normal anatomy of the female pelvic floor by using a practical approach, discuss the roles of translabial US and MR imaging in the investigation of PFD, describe the most appropriate imaging protocols, and illustrate the most common imaging findings of PFD in the anterior, middle, and posterior compartments of the pelvis. Online supplemental material is available for this article. (c)RSNA, 2018. PMID- 29320318 TI - Invited Commentary on "Mediastinal and Pleural MR Imaging: Practical Approach for Daily Practice". PMID- 29320319 TI - Coronary Artery Aneurysm Formation: Kawasaki Disease versus Atherosclerosis. PMID- 29320320 TI - MR Imaging and Cochlear Implants with Retained Internal Magnets: Reducing Artifacts near Highly Inhomogeneous Magnetic Fields. AB - The number of patients receiving cochlear implants and auditory brainstem implants for severe to profound sensorineural hearing loss has rapidly increased. These implants consist of an internal component implanted between the skull and the temporal scalp and an external removable speech processor unit. A small magnet within the internal component is commonly used to hold the external speech processor unit in place. Several cochlear implant models have recently received U.S. Food and Drug Administration and European Economic Area regulatory approval to allow magnetic resonance (MR) imaging examinations to be performed under certain specified conditions. The small internal magnet presents a challenge for imaging of the head and neck near the implant, creating a nonlinear magnetic field inhomogeneity and significant MR imaging artifacts. Fat-saturation failures and susceptibility artifacts severely degrade image quality. Typical artifacts at diffusion-weighted imaging and accelerated imaging are exacerbated. Each examination may require impromptu adjustments to allow visualization of the tissue or contrast of interest. Patients may also be quite uncomfortable during the examination, as a result of either imposed magnetic forces or a tight head wrap that is often applied to minimize internal magnet movement. Translational forces and torque sometimes displace the implanted magnet even when a head wrap is used. Diseases such as neurofibromatosis type 2 that are associated with bilateral vestibular schwannomas and hearing loss often require lifelong tumor surveillance with MR imaging. A collaborative team of radiologists, technologists, and/or medical physicists or MR imaging scientists, armed with strategies to mitigate artifacts near implanted magnets, can customize the examination for better visualization of tissue and consistent comparison examinations over time. (c)RSNA, 2018. PMID- 29320321 TI - Writing Good True-False Questions: A Brief Guide for Radiologists. AB - This guide provides a brief how-to compilation of widely accepted recommendations for creating good true-false questions for self-assessment continuing medical education exercises. PMID- 29320322 TI - Multidetector CT of Midfacial Fractures: Classification Systems, Principles of Reduction, and Common Complications. AB - The advent of titanium hardware, which provides firm three-dimensional positional control, and the exquisite bone detail afforded by multidetector computed tomography (CT) have spurred the evolution of subunit-specific midfacial fracture management principles. The structural, diagnostic, and therapeutic complexity of the individual midfacial subunits, including the nose, the naso-orbito-ethmoidal region, the internal orbits, the zygomaticomaxillary complex, and the maxillary occlusion-bearing segment, are not adequately reflected in the Le Fort classification system, which provides only a general framework and has become less relevant in contemporary practice. The purpose of this article is to facilitate the involvement of radiologists in the delivery of individualized multidisciplinary care to adults who have sustained blunt trauma and have midfacial fractures by providing a clinically relevant review of the role of multidetector CT in the management of each midfacial subunit. Surgically relevant anatomic structures, search patterns, critical CT findings and their management implications, contemporary classification systems, and common posttraumatic and postoperative complications are emphasized. (c)RSNA, 2018. PMID- 29320323 TI - Multimodality Imaging, including Dual-Energy CT, in the Evaluation of Gallbladder Disease. AB - Imaging of the gallbladder has a key role in the examination of patients with abdominal pain-especially pain localized to the right upper quadrant. Pathologic conditions that affect the gallbladder include cholelithiasis and associated complications such as acute and chronic cholecystitis, choledocholithiasis, gallstone pancreatitis, and cancer. Modalities used to image the gallbladder include ultrasonography (US), computed tomography (CT), magnetic resonance (MR) imaging, and nuclear scintigraphy. US is the primary imaging modality used to evaluate entities suspected of being gallbladder disease, as it is both sensitive and specific for demonstrating gallstones, biliary duct dilatation, and inflammatory features. However, CT is often the first imaging examination performed in patients who present to the emergency department with acute abdominal pain. Because the CT appearance of gallstones is variable, depending on the composition of the stone, pattern of calcification, and presence of gas, gallstones and other gallbladder conditions can be difficult to detect at conventional multidetector CT, with which data are acquired by using a single x ray energy spectrum. Dual-energy CT, with which one takes advantage of the material-dependent x-ray absorption behavior of concurrently acquired high- and low-kilovolt-peak data, can add value by increasing the conspicuity of noncalcified gallstones and improving the detection of acute cholecystitis and gallbladder malignancy. In addition, MR cholangiopancreatography can be helpful for assessing choledocholithiasis and complicated biliary duct disease. (c)RSNA, 2018. PMID- 29320324 TI - Spectrum of Coronary Artery Aneurysms: From the Radiologic Pathology Archives. AB - Advances in medical diagnosis reveal that coronary artery aneurysms (CAAs) may develop in several clinical scenarios and manifest variable symptoms, imaging appearances, and outcomes. Aneurysms are pathologically classified into three groups: atherosclerotic, inflammatory, and noninflammatory. The last category is associated with congenital, inherited, and connective tissue disorders. Overlap exists among the groups, because secondary atherosclerotic change may be present in an aneurysm of any cause. Atherosclerosis is the most common cause of CAAs in adults, and inflammation is considered the underlying mechanism. In children, Kawasaki disease is the most likely cause of CAAs. In both conditions, the aneurysms are usually multiple and affect more than one coronary artery. Mycotic (infectious), iatrogenic, and cocaine-induced CAAs are also well documented. Most CAAs are discovered incidentally, but potential cardiovascular complications include thrombosis, occlusion, fistula formation, rupture, myocardial infarction, and cardiac tamponade. Imaging modalities to evaluate a suspected CAA include transthoracic echocardiography, angiographic cardiac catheterization, electrocardiographically gated computed tomographic angiography, cardiac magnetic resonance (MR) imaging, and MR angiography. Management is usually individualized, and options include surveillance, anticoagulant therapy, percutaneous stent or coil placement, surgical resection, and coronary artery bypass grafting. PMID- 29320325 TI - Diseases Involving the Central Bronchi: Multidetector CT for Detection, Characterization, and Differential Diagnosis. PMID- 29320326 TI - Mediastinal and Pleural MR Imaging: Practical Approach for Daily Practice. AB - Radiologists in any practice setting should be prepared to use thoracic magnetic resonance (MR) imaging for noncardiac and nonangiographic applications. This begins with understanding the sequence building blocks that can be used to design effective thoracic MR imaging protocols. In most instances, the sequences used in thoracic MR imaging are adapted from protocols used elsewhere in the body. Some modifications, including the addition of electrocardiographic gating or respiratory triggering, may be necessary for certain applications. Once protocols are in place, recognition of clinical scenarios in which thoracic MR imaging can provide value beyond other imaging modalities is essential. MR imaging is particularly beneficial in evaluating for benign features in indeterminate lesions. In lesions that are suspected to be composed of fluid, including mediastinal cysts and lesions composed of dilated lymphatics, MR imaging can confirm the presence of fluid and absence of suspicious enhancement. It can also be used to evaluate for intravoxel lipid, a finding seen in benign residual thymic tissue and thymic hyperplasia. Because of its excellent contrast resolution and potential for subtraction images, MR imaging can interrogate local treatment sites for the development of recurrent tumor on a background of post treatment changes. In addition to characterization of lesions, thoracic MR imaging can be useful in surgical and treatment planning. By identifying nodular sites of enhancement or areas of diffusion restriction within cystic or necrotic lesions, MR imaging can be used to direct sites for biopsy. MR imaging can help evaluate for local tumor invasion with the application of "real-time" cine sequences to determine whether a lesion is adherent to an adjacent structure or surface. Finally, MR imaging is the modality of choice for imaging potential tumor thrombus. By understanding the role of MR imaging in these clinical scenarios, radiologists can increase the use of thoracic MR imaging for the benefit of improved decision making in the care of patients. (c)RSNA, 2018. PMID- 29320327 TI - Atypical Sites of Deeply Infiltrative Endometriosis: Clinical Characteristics and Imaging Findings. AB - Endometriosis is defined as the presence of endometrial tissue that is located outside the uterine cavity and associated with fibrosis and inflammatory reaction. It is a polymorphic and multifocal disease with no known cure or preventive mechanisms. Patients may be asymptomatic or may experience chronic pelvic pain, dysmenorrhea, dyspareunia, or infertility. The pelvic cavity is the most common location for endometriotic implants, which usually affect the retrocervical space, ovaries, vagina, rectosigmoid colon, bladder dome, and round ligaments. Atypical endometriosis is rare and difficult to diagnose. The most common atypical locations are the gastrointestinal tract, urinary tract, lung, umbilicus, inguinal area, breast, and pelvic nerves, as well as abdominal surgical scars. Gastrointestinal lesions are the most common extragenital manifestation, and the diaphragm is the most frequent extrapelvic site. The catamenial nature of the symptoms (occurring between 24 hours before and 72 hours after the onset of menstruation) may help suggest the diagnosis, but imaging by specialists is fundamental to evaluation. Depending on the area affected, radiography, ultrasonography, thin-section computed tomography, or magnetic resonance imaging can be used to assess suspected lesions. Because isolated extragenital endometriosis is rare, concomitant evaluation of the pelvic cavity is mandatory. Surgical excision is the only therapeutic option for definitive treatment, and comprehensive disease mapping is necessary to avoid residual disease. The authors review atypical locations for endometriosis and emphasize the most appropriate imaging protocols for investigation of various clinical manifestations. Online supplemental material is available for this article. (c)RSNA, 2018. PMID- 29320328 TI - Twenty-Five Diagnoses on Midline Images of the Brain: From Fetus to Child to Adult. AB - Midsagittal images of the brain provide a wealth of anatomic information and may show abnormalities that are pathognomonic for particular diagnoses. Using an anatomy-based approach, the authors identify pertinent anatomic structures to serve as a checklist when evaluating these structures. Subregions evaluated include the corpus callosum, pituitary gland and sellar region, pineal gland and pineal region, brainstem, and cerebellum. The authors present 25 conditions with characteristic identifiable abnormalities at midsagittal imaging. Midsagittal views from multiple imaging modalities are shown, including computed tomography, ultrasonography, and magnetic resonance (MR) imaging. Standard MR imaging sequences are shown, as well as fetal MR and sagittal diffusion-weighted images. To demonstrate these conditions, fetal, neonatal, childhood, adolescent, and young adulthood images are reviewed. The differentiation of normal variants is guided by the understanding of anatomy and pathology. When a specific diagnosis is not possible, the authors present information to evaluate differential considerations and discuss when follow-up imaging may be indicated. The authors hope each case will clarify a pertinent differential diagnosis, appropriately guide patient management, and improve understanding of normal anatomy and identification of pathologic entities. It is in these hopes that the authors have presented a checklist of pertinent anatomy and pathologic entities that can build on existing search patterns. Improved confidence and accuracy in the evaluation of midsagittal images will benefit physicians and patients. (c)RSNA, 2018. PMID- 29320329 TI - CT Cystography for Suspicion of Traumatic Urinary Bladder Injury: Indications, Technique, Findings, and Pitfalls in Diagnosis: RadioGraphics Fundamentals | Online Presentation. PMID- 29320330 TI - Cardiovascular Manifestations and Complications of Loeys-Dietz Syndrome: CT and MR Imaging Findings. AB - Loeys-Dietz syndrome (LDS) is a recently described genetic connective tissue disorder with a wide spectrum of multisystem involvement. LDS is characterized by rapidly progressive aortic and peripheral arterial aneurysmal disease. LDS and the other inherited aortopathies such as Marfan syndrome have overlapping phenotypic features. However, LDS is characterized by a more aggressive vascular course; patient morbidity and mortality occur at an early age, with complications developing at relatively smaller aortic dimensions. In addition, there is more diffuse arterial involvement in LDS, with a large proportion of patients developing aneurysms of the iliac, mesenteric, and intracranial arteries. Early diagnosis and careful follow-up are essential for ensuring timely intervention in patients with arterial disease. Cross-sectional angiography has an important role in the baseline assessment, follow-up, and evaluation of acute complications of LDS, the thresholds and considerations of which differ from those of other inherited aortopathies. In this article, LDS is compared with other genetic vascular connective tissue disorders. In addition, the genetic, histopathologic, and cardiovascular manifestations of this disease process are reviewed, with a focus on computed tomographic and magnetic resonance imaging findings. Online DICOM image stacks and supplemental material are available for this article. (c)RSNA, 2018. PMID- 29320331 TI - Neuromyelitis Optica Spectrum Disorders: Spectrum of MR Imaging Findings and Their Differential Diagnosis. AB - Neuromyelitis optica (NMO) is an autoimmune demyelinating disorder for which the aquaporin-4 (AQP4) water channels are the major target antigens. Advances in the understanding of NMO have clarified several points of its pathogenesis, clinical manifestations, and imaging patterns. A major advance was the discovery of the AQP4 antibody, which is highly specific for this disorder. Descriptions of new clinical and radiologic features in seropositive patients have expanded the spectrum of NMO, and the term NMO spectrum disorder (NMOSD) has been adopted. NMOSD is now included in a widening list of differential diagnoses. Acknowledgment of NMOSD imaging patterns and their mimicry of disorders has been crucial in supporting early NMOSD diagnosis, especially for unusual clinical manifestations of this demyelinating disease. This pictorial review summarizes the wide imaging spectrum of NMOSD and its differential diagnosis, as well as its historical evolution, pathophysiology, and clinical manifestations. (c)RSNA, 2018. PMID- 29320332 TI - Intraocular Medulloepithelioma: AIRP Best Cases in Radiologic-Pathologic Correlation. AB - Editor's Note.-RadioGraphics continues to publish radiologic-pathologic case material selected from the American Institute for Radiologic Pathology (AIRP) "best case" presentations. The AIRP conducts a 4-week Radiologic Pathology Correlation Course, which is offered five times per year. On the penultimate day of the course, the best case presentation is held at the American Film Institute Silver Theater and Cultural Center in Silver Spring, Md. The AIRP faculty identifies the best cases, from each organ system, brought by the resident attendees. One or more of the best cases from each of the five courses are then solicited for publication in RadioGraphics. These cases emphasize the importance of radiologic-pathologic correlation in the imaging evaluation and diagnosis of diseases encountered at the institute and its predecessor, the Armed Forces Institute of Pathology (AFIP). PMID- 29320333 TI - Prostate-specific Membrane Antigen PET: Clinical Utility in Prostate Cancer, Normal Patterns, Pearls, and Pitfalls. AB - Prostate-specific membrane antigen (PSMA) is a transmembrane glycoprotein that is overexpressed in prostate cancer. Radiolabeled small molecules that bind with high affinity to its active extracellular center have emerged as a potential new diagnostic standard of reference for prostate cancer, resulting in images with extraordinary tumor-to-background contrast. Currently, gallium 68 (68Ga)-PSMA-11 (or HBED-PSMA) is the most widely used radiotracer for PSMA positron emission tomography (PET)/computed tomography (CT) or PSMA PET/magnetic resonance (MR) imaging. Evolving evidence demonstrates superior sensitivity and specificity of PSMA PET compared to conventional imaging, with frequent identification of subcentimeter prostate cancer lesions. PSMA PET is effective for imaging disease in the prostate, lymph nodes, soft tissue, and bone in a "one-stop-shop" examination. There is emerging evidence for its clinical value in staging of high risk primary prostate cancer and localization of disease in biochemical recurrence. The high sensitivity provided by PSMA PET, with frequent identification of small-volume disease, is redefining patterns of disease spread compared with those seen at conventional imaging. In metastatic castration resistant prostate cancer, PSMA PET is frequently used for theranostic selection (eg, lutetium 177-PSMA radionuclide therapy), but its potential use for therapy monitoring is still under debate. However, evidence on its proper use to improve patient-related outcomes, particularly in the setting of early biochemical recurrence and targeted treatment of oligometastatic disease, is still missing. Despite the term prostate specific, PSMA functions as a folate hydrolase and is expressed in a range of normal tissues and in other benign and malignant processes. Knowledge of its physiologic distribution and other causes of uptake is essential to minimize false-positive imaging findings. (c)RSNA, 2018. PMID- 29320334 TI - Body Weight and Bullying Victimization among US Adolescents. AB - OBJECTIVE: We examined the association between body weight status at all levels (including underweight, normal weight, overweight, and obesity) and bullying victimization among US ado- lescents using a nationally representative data. METHODS: We used logistic regression to exam- ine the association between bullying victimization and body weight status by sex with the data from the 2013 Youth Risk Behavior Survey (YRBS) (N = 11,825), controlling for demographics, selected behavioral confounders, and complex survey design. RESULTS: We found a statistically significant U-shaped association between body weight and bullying victimization among male (p = .001) but not female students (p = .838). For girls, the prevalence of being bullied slightly increased from underweight (33.58%) to normal weight (34.36%) to obesity (36.18%) but such increases failed to reach statistical significance. For boys, being bullied was significantly associ- ated with younger age, being white, feeling hopeless, having suicidal ideation, and excessive video-game playing. CONCLUSIONS: A U-shaped association between body weight and bullying victimization appears to exist in boys but not girls, partly because of the body weight stigma and sex stereotypes among US adolescents. Future studies should investigate the risk factors associated with sex-specific bullying to develop effective anti-bullying programs for youth. PMID- 29320336 TI - Knowledge Gaps of the Health Benefits of Beans among Low-Income Women. AB - OBJECTIVES: We determined knowledge of the health benefits of consuming beans, and assessed if awareness varied by acculturation status among Hispanic and non Hispanic low-income women. METHODS: We used a self-administered survey with Iowa women aged 18-65 years who were eligible to receive income-based services through 2 healthcare clinics, a WIC clinic, and Extension Outreach. Chi-square and ANOVA were used to compare bean health benefit knowledge, demographics, health-risk factors, nutrition information seeking, and self-efficacy by acculturation categories. RESULTS: Of the 158 women who completed the survey, 58% were Hispanic, with a mean age of 36 years. In terms of acculturation, 24% were Hispanic-dominant, 30% bicultural, and 46% English dominant. Over 50% of all respondents did not know bean consumption lowered cholesterol, aided blood glucose control, or reduced some cancer risks. Responses for 5 of 7 knowledge statements differed significantly by acculturation. Hispanic-dominant and bicultural women reported significantly better health, higher bean consumption, and less cigarette smoking than English-dominant women. Bicultural and English dominant women were more likely to use the Internet for nutrition information. CONCLUSIONS: There are knowledge gaps about the health benefits of bean consumption among low-income women. Nutrition education to improve their knowledge may lead to increased bean consumption, reducing health disparities and improving nutrition. PMID- 29320335 TI - Physician Intervention and Chinese Americans' Colorectal Cancer Screening. AB - OBJECTIVE: We conducted a cluster-randomized trial evaluating an intervention that trained Chinese-American primary care physicians to increase their Chinese patients' colorectal cancer (CRC) screening. METHODS: Twenty-five physicians (13 randomized to the intervention arm and 12 to the control arm) and 479 of their patients (aged 50-75 and nonadherent to CRC screening guidelines) were enrolled. The intervention, guided by Social Cognitive Theory, included a communication guide and 2 in-office training sessions to enhance physicians' efficacy in com- municating CRC screening with patients. Patients' CRC screening rates (trial outcome) and rating of physician communication before intervention and at 12 month follow-up were assessed. Intention-to-treat analysis for outcome evaluation was conducted. RESULTS: Screening rates were slightly higher in the intervention vs. the control arm (24.4% vs. 17.7%, p = .24). In post hoc analyses, intervention arm patients who perceived better communication were more likely to be screened than those who did not (OR = 1.09, 95% CI: 1.03, 1.15). This relationship was not seen in the control arm. CONCLUSIONS: This physician-focused intervention had small, non-significant effects in increasing Chinese patients' CRC screening rates. Physician communication appeared to explain intervention efficacy. More intensive interventions are needed to enhance Chinese patients' CRC screening. PMID- 29320337 TI - Improving Resiliency in Healthcare Employees. AB - OBJECTIVES: The high prevalence of stress at the workplace has been well documented; however, few studies have investigated the efficacy of worksite resiliency programs. Therefore, the objec- tive of this project was to examine the impact of a worksite resilience training program on improving resiliency and health behaviors in healthcare employees. METHODS: Between 2012 and 2016, 137 adult wellness center members of a healthcare institution participating in a single-arm cohort study of a 12-week resiliency training program were assessed at baseline, end of intervention, and at 3-month follow-up. RESULTS: Statistically significant (p <= .01) improvements were seen at the end of the intervention and extending to 3 months follow-up for resiliency, perceived stress, anxiety level, quality of life, and health behaviors. CONCLUSIONS: These results support the premise that worksite programs designed to improve resiliency in healthcare employees have efficacy in improving resiliency, quality of life and health behaviors. Given the importance of stress and burnout in healthcare employees, future randomized studies are warranted to determine more clearly the impacts of this type of resiliency intervention for improving the wellness of healthcare workers. PMID- 29320338 TI - Healthy Behaviors and Incidence of Disability in Community-Dwelling Elderly. AB - OBJECTIVES: In this paper and prospective study, we examine the number of healthy behaviors and the incidence of disability in community-dwelling older adults aged 65 years and older. METHODS: Participants (N = 4483) were residents of Obu, Japan who were asked about regular exercise, smoking status, and sleep duration. Demographic variables, history of disease, physi- cal function, and cognitive function were measured as confounders. Information about disabil- ity was obtained from the Obu City Office. RESULTS: At 24 months after baseline assessment, 165 participants (3.7%) were certified as having disability. Participants with 2 healthy behaviors had a 1.61-fold increased risk of disability (95% CI: 1.08 -2.42) compared with those with 3 healthy behaviors; those with one or no healthy behaviors had a 2.01-fold risk (95% CI: 1.26-3.19) even though adjusting for confounders. CONCLUSIONS: The number of healthy behaviors was associated with the incidence of disability, with the hazard ratios increasing progressively as the number of healthy behaviors decreased. PMID- 29320339 TI - Dental Visits Mediate the Impact of Smoking on Oral Health. AB - OBJECTIVES: We explored the mediational relationships among smoking, dental visits, and oral health in a longitudinal study. METHODS: We selected a sample of adult residents of rural communities of North Central Florida and followed them for 3 years (final N = 1170). We examined the impact of smoking on oral health across time and conducted mediation analysis to quantify the effect of dental visits on the relationship between smoking and poor oral health. RESULTS: Our results showed that oral health declined across time for smokers but not for nonsmokers. The mediation analysis found that 18.3% of the difference in followup oral health between smokers and non-smokers was explained by smokers not having any dental visits in the last year. CONCLUSIONS: Our findings suggest that, given the low success rate of quitting smoking, promoting dental visits can help limit the negative effects of smoking on oral health. Future community prevention studies could encourage dental visits among smokers and provide educational materials that aim to increase knowledge of oral self-care. PMID- 29320340 TI - Lung Cancer Screening Uncertainty among Patients Undergoing LDCT. AB - OBJECTIVES: Lung cancer is the leading cause of cancer death, yet lung screening remains underutilized. Lung cancer screening uncertainty (LCSU), including referral clarity and the perceived accuracy of screening, may hinder utilization and represent an unmet psychosocial need. This study sought to identify correlates of LCSU among lung screening patients. METHODS: Current and former smokers (N = 169) completed questionnaires assessing LCSU, sociodemographic variables, objective and subjective numeracy, stress, and anxiety, as part of a cross-sectional study of lung screening patients at an academic hospital. RESULTS: Patients (52% current smok- ers) reported high clarity about the reason for their lung screening referral. Less clarity was as- sociated with lower education, not receiving Medicare, and greater stress and anxiety. Patients perceived lung screening to be moderately accurate, and levels were inversely related to objective numeracy. Subjective numeracy was higher among former versus current smokers (OR = 2.5), yet was unrelated to LCSU variables. CONCLUSIONS: Several sociodemographic, numeracy, and emotional factors were associated with greater LCSU. With multiple policy and clinical guidelines purporting the uptake of annual lung screening, it is important to identify patients with LCSU and tailor shared decision-making to clarify their uncertainties. PMID- 29320341 TI - Long-term Weight Maintenance after Successful Weight Loss: Motivational Factors, Support, Difficulties, and Success Factors. AB - OBJECTIVES: The main aims of this study were to assess motivational factors for weight loss, and support and difficulties during the weight loss and weight maintenance phase. METHODS: This study was based upon findings from the Finnish Weight Control Registry (FWCR), including 158 formerly obese persons, who lost at least 10% of their initial weight and maintained it for at least 2 years. Data have been collected through electronic forms. RESULTS: The 2 most commonly reported motivational factors for weight loss were health- and appearance-related factors. Women reported dissatisfaction with their body more commonly than men (p = .023), whereas men reported health-related reasons (p = .008) more often. The majority (58%) reported losing weight alone, without any outside support, men more commonly than women (p = .006). Persons reported fewer difficulties during the maintenance than during the weight loss phase. CONCLUSIONS: Various motivational factors for losing weight may lead to successful weight loss and long-term weight maintenance. Marked sex differences were reported in relation to difficul- ties and need for support. PMID- 29320342 TI - Factors Associated with Sunbed use in Women: the E3N-SunExp Study. AB - OBJECTIVES: In this study, we attempt to describe the profile of sunbed users among cancer-free French women. METHODS: E3N is a prospective cohort including 98,995 French women aged 40- 65 years in 1990. In 2008, a specific UV questionnaire was sent to all reported skin cancer cases and 3 controls per case, matched on age, county of birth, and education. We used logistic regression models adjusted for pigmentary traits. RESULTS: Compared with non-users, ever users of sunbeds were younger (ptrend < .0001), had higher levels of education (ptrend = .0004) and income (ptrend = .002), and were more likely to be divorced/separated (OR = 1.58). They were more likely to be smokers (OR = 1.59) or former smokers (OR = 1.64), had higher alcohol intakes (ptrend = .001), and lower physical activity levels (OR = 0.54), although they had a lower BMI (ptrend = .004) and a thinner body shape (ptrend = .006). Sunbed users were also more likely to report many freckles (ptrend = .01) and sunburns in adulthood (ptrend = .008), to use sunscreen (SPF<8: OR = 2.15), and to renew sunscreen application (sometimes: OR = 1.49). CONCLUSIONS: Sunbed use is associated with intentional sun exposure and several unhealthy behaviors. Our findings call for further re- search towards the development of targeted prevention campaigns to reduce sunbed use. PMID- 29320343 TI - Healthcare Satisfaction among Older Adults. AB - OBJECTIVE: This study seeks to examine how older adults rate and identify the importance of attributes associated with healthcare seeking and utilization (eg, affordability, type of facility, and accessibility) in the United States. METHODS: The empirical work of this cross-sectional study is based on the 2014 Health and Retirement Study. Conjoint analysis and cluster analysis are used to assess the objective. RESULTS: There is a pressing need for sound policies that seek to reduce the cost of treatment and consultation and to improve the accessibility of care facility for older adults even though satisfaction pertaining to these attributes (ie, affordability, type of facility, and accessibility) differs across clusters. CONCLUSION: The use of conjoint analysis in conjunction with cluster analysis can serve as a needs assessment tool to help policymakers and practitio- ners gauge older adults' expectations and priorities with respect to healthcare seeking and utilization. By taking the priorities of older adults into account, policymakers and practitioners can allocate healthcare resources more efficiently within budgetary constraints as they redesign and customize their program delivery approaches to meet the specific and relative healthcare needs of older adults in different clusters. PMID- 29320344 TI - A Profile of Individuals with Anti-tobacco Message Fatigue. AB - OBJECTIVES: Message fatigue, a phenomenon of being tired of repeated exposure to messages promoting the same health behavior, may reduce the effectiveness of anti tobacco messages, such as warning labels. As an initial step towards understanding the phenomenon, we examined predictors of anti-tobacco message fatigue. METHODS: An online study (N = 1838) involving a non-probability sample of nonsmokers and smokers in the United States assessed anti-tobacco message fatigue and individual-level factors including demographic variables and smoking status. General linear models were used to analyze the data. RESULTS: The multivariable results show that individuals who were younger, male, and had higher income and education reported higher levels of anti-tobacco message fatigue. African Americans reported significantly lower levels of message fatigue than other racial groups. Current smokers reported greater message fatigue than transitioning smokers and nonsmokers. Among current smokers, those with greater nicotine dependence reported higher levels of anti-tobacco message fatigue. CONCLUSIONS: These findings underscore the importance of segmenting the audience based on their levels of message fatigue and using more novel message strategies and delivery methods to influence populations with relatively higher levels of anti-tobacco message fatigue. PMID- 29320345 TI - An Examination of Changes in Social Disparities in Health Behaviors in the US, 2003-2015. AB - OBJECTIVES: Due to growing health disparities, federal and philanthropic agencies have empha-sized reducing health disparities in their preventive health efforts. This study determined the status of disparities in health behaviors in the last 13 years in the United States. METHODS: Data were obtained from the Behavioral Risk Factor Surveillance Systems in odd years (2003-2015). Health behaviors were dichotomized to reflect met fruit and vegetable (FV) consumption and physical activity (PA) recommendations, non-cigarette smoking, non-heavy drinking, and non binge drinking. Overall and sociodemographic characteristic-specific disparities ratios for each behavior were calculated. Linear trend analyses were calculated to determine disparities change across the years. RESULTS: Overall disparities fluctuated across the years. Linear trend analyses confirmed that education specific and income-specific disparities' contribution to overall disparities increased for all behaviors. Sex-specific disparities' contribution decreased for all behaviors except non-cigarette smoking. Age-specific disparities' contribution decreased for all behaviors except non-binge drinking. Race/ethnicity-specific disparities' contribution to overall disparities increased for FV and non-cigarette smoking, but decreased for the other behaviors. CONCLUSIONS: The results suggest health disparities in preventive health behaviors in the last 13 years have not improved. Tailored interventions, systemic and policy changes, and/or inclusive population efforts should be initiated to reduce disparities in preventive health for the most- divergent groups identified in the results. PMID- 29320346 TI - Media Devices in Parents' and Children's Bedrooms and Children's Media Use. AB - OBJECTIVES: The American Academy of Pediatrics advises having no media devices in children's bedrooms. We examined the link between media devices in parents' and children's bedrooms and children's media use. METHODS: Ninety parent-child dyads participated in a community- based healthy weight management study targeting 8-to 12-year-olds with body mass index (BMI)-for-age >=75th percentile. Parents and children reported the number of media devices in their bedrooms and hours spent using media devices on weekdays and weekend days. RESULTS: Most children (61%) and parents (92%) had at least one media device in their bedrooms. The numbers of devices in parents' and children's bedrooms were positively correlated. Children with no bedroom media devices reported less weekday media use compared to children with bedroom devices. A similar non-significant pattern was found for children's weekend media use. CONCLUSIONS: Study findings indicate similar media devices in the bedrooms of parents and children and a significant association between media devices in children's bedrooms and their weekday media use. Efforts to reduce media in parent bedrooms may enhance interventions targeting reduction of media use among children, especially those with higher BMI. PMID- 29320347 TI - Heroin Use and Drug Injection among Youth Also Misusing Prescription Drugs. AB - OBJECTIVES: We identified the prevalence of nonmedical prescription drug use and its relationship to heroin and injection drug use in 4 nationally representative samples of adolescents. METHODS: We used the most recent data (2009-2015) from the Youth Risk Behavior Surveillance System (Ntotal= 61,132). Prevalence rates and 95% confidence intervals for prescription drug misuse, heroin use, and injection drug use were calculated across time points, sex, and race/ethnicity subgroups. Using odds ratios, we determined the likelihood of youth reporting nonmedical prescription drug use also reporting heroin and drug injection. RESULTS: In 2015, one in 6 adolescents reported recent prescription drug misuse. High rates of nonmedical prescription drug use persisted or increased among Hispanic boys, black boys, and "other" youth, while declining among white youth. Youth who used prescription drugs nonmedically at least once were 17.5 times more likely to have used heroin (CI: 13.7, 22.4) and 14.6 times more likely to have injected drugs (CI: 11.2, 19.2) in their lifetime. CONCLUSIONS: Public health programming focused on reducing prescription drug misuse also may reduce youth engagement in heroin and/or injection drug use. Preventive efforts to support communities of color in reducing rates of prescription drug misuse are crucial. PMID- 29320348 TI - Frequency of Breakfast and Physical Fitness among Chinese College Students. AB - OBJECTIVE: Although several studies report a relationship between breakfast consumption and physical fitness, results are inconsistent and lack evidence in young adults. The objective of this study was to investigate the relationship between frequency of breakfast consumption and physical fitness among college students. METHODS: This cross-sectional study investigated 10,125 Chinese college students (6251 male, 3874 female participants) who underwent physical examinations in 2015. Breakfast consumption was assessed using a self-reported questionnaire. Physical fitness was evaluated by grip strength and 50-meter sprint. RESULTS: After adjusting for confounding factors, a significantly positive association was observed between frequency of breakfast consumption and grip strength (p < .001 for both sexes). Frequent breakfast consumption also was associated with faster sprint times in male and female participants (p < .001, and .002 respectively). CONCLUSIONS: We found that frequent breakfast consumption is significantly associated with higher grip strength and faster sprint times in Chinese college students. PMID- 29320362 TI - Predictive value of serum gelsolin and Gc globulin in sepsis - a pilot study. AB - BACKGROUND: Simultaneous determination of the two main actin scavenger proteins in sepsis has not been investigated until now. In our pilot study, we elucidated the predictive values of Gc globulin and gelsolin (GSN) in sepsis by comparing them to classic laboratory and clinical parameters. METHODS: A 5-day follow-up was performed, including 46 septic patients, 28 non-septic patients and 35 outpatients as controls. Serum Gc globulin and GSN levels were determined by automated immune turbidimetric assay on a Cobas 8000/c502 analyzer. Patients were retrospectively categorized according to the sepsis-3 definitions, and 14-day mortality was also investigated. RESULTS: First-day GSN also differentiated sepsis from non-sepsis (AUC: 0.88) similarly to C-reactive protein (AUC: 0.80) but was slightly inferior to procalcitonin (PCT) (AUC: 0.98) with a cutoff value of GSN at 22.29 mg/L (sensitivity: 83.3%; specificity: 86.2%). Only first-day SOFA scores (0.88) and GSN (0.71) distinguished septic survivors from non survivors, whereas lactate (0.99), Gc globulin (0.76) and mean arterial pressure (MAP) (0.74) discriminated septic shock from sepsis. Logistic regression analyses revealed SOFA scores and GSN being significant factors regarding 14-day mortality. First-day GSN levels were higher (p<0.05) in septic survivors than in non-survivors. Gc globulin levels remained higher (p<0.01) in sepsis when compared with septic shock during the follow-up period. CONCLUSIONS: Both serum GSN and Gc globulin may have predictive values in sepsis. Considering the small sample size of our study, further measurements are needed to evaluate our results. Measurement of Gc globulin and GSN maybe useful in assessment of sepsis severity and in therapeutic decision-making. PMID- 29320363 TI - Performance evaluation of a new automated fourth-generation HIV Ag/Ab combination chemiluminescence immunoassay. PMID- 29320364 TI - Cardiometabolic effects of psychotropic medications. AB - Background Many psychiatric disorders including schizophrenia, bipolar disorder and major depression convey an excess burden of cardiovascular morbidity and mortality. The medications used to treat these conditions may further adversely affect cardiovascular risk and exacerbate health disparities for vulnerable populations. There is a clinical need to appreciate the cardiometabolic adverse effects of psychotropic medications. Methods This paper reviews the most relevant cardiometabolic effects of psychotropic medications, organized around the components of metabolic syndrome. When known, the molecular and physiological mechanisms underlying any adverse cardiometabolic effects are detailed. Results Many commonly used psychotropic medications, particularly antipsychotics, mood stabilizers and some antidepressants, have been independently associated with cardiometabolic risk factors such as insulin resistance, obesity and dyslipidemia. Stimulants, antidepressants that inhibit reuptake of norepinephrine, some antipsychotics and valproic acid derivatives may also increase blood pressure. Conclusion Understanding, assessing and subsequently managing cardiometabolic complications of psychotropic medications are important to mitigate the excess cardiovascular morbidity and mortality in the clinical populations prescribed psychotropic medications. There is considerable variability in risk between medications and individuals. Timely management of iatrogenic cardiometabolic effects is critical. PMID- 29320365 TI - Association of cord blood ghrelin, leptin and insulin concentrations in term newborns with anthropometric parameters at birth. AB - BACKGROUND: Ghrelin, leptin and insulin, generally considered as regulators of energy homeostasis of the organism may be related to fetal and early postnatal growth. Numerous studies have confirmed the presence of these hormones in the cells of the fetus indicating their importance in development at early stages of life. METHODS: This study analyzed active and total ghrelin by radioimmunoassay (RIA), leptin and insulin concentrations by enzyme-linked immunosorbent assay (ELISA) in 65 cord blood samples, from term newborns, and measured the birth anthropometric parameters [birth weight (BW), head circumference, chest, stomach, thigh and arm circumference]. RESULTS: Active ghrelin (AG) concentrations correlated negatively with BW, head circumference, stomach and thigh circumference. When divided by gender, AG correlated negatively with males' BW, stomach and thigh circumference. Females' head circumference correlated negatively with AG. Cord leptin correlated positively with arm circumference. When divided by gender, cord leptin was positively associated with BW and stomach circumference in male newborns and with thigh and arm circumference in female newborns. Insulin concentrations tended to correlate positively with BW in male newborns. CONCLUSIONS: In summary, it was confirmed that cord blood ghrelin, leptin and insulin correlate with anthropometric parameters at birth. This study showed a negative correlation of AG with anthropometric parameters, which may emphasize that this hormone is an indicator of growth restriction. This is in contrast to cord leptin and insulin, which are more connected with overgrowth. Taking all the results into consideration, the metabolic status of the fetus and newborn is an essential component in understanding the regulation of perinatal development. PMID- 29320366 TI - Therapeutic efficacy of specific immunotherapy for glioma: a systematic review and meta-analysis. AB - Although different immunotherapeutic approaches have been developed for the treatment of glioma, there is a discrepancy between clinical trials limiting their approval as common treatment. So, the current systematic review and meta analysis were conducted to assess survival and clinical response of specific immunotherapy in patients with glioma. Generally, seven databases were searched to find eligible studies. Controlled clinical trials investigating the efficacy of specific immunotherapy in glioma were found eligible. After data extraction and risk of bias assessment, the data were analyzed based on the level of heterogeneity. Overall, 25 articles with 2964 patients were included. Generally, mean overall survival did not statistically improve in immunotherapy [median difference=1.51; 95% confidence interval (CI)=-0.16-3.17; p=0.08]; however, it was 11.16 months higher in passive immunotherapy (95% CI=5.69-16.64; p<0.0001). One-year overall survival was significantly higher in immunotherapy groups [hazard ratio (HR)=0.69; 95% CI=0.52-0.92; p=0.01]. As the hazard rate in the immunotherapy approach was 0.83 of the control group, 2-year overall survival was significantly higher in immunotherapy (HR=0.83; 95% CI=0.69-0.99; p=0.04). Three year overall survival was significantly higher in immunotherapy as well (HR=0.67; 95% CI=0.48-0.92; p=0.01). Overall, median progression-free survival was significantly higher in immunotherapy (standard median difference=0.323; 95% CI=0.110-0.536; p=0.003). However, 1-year progression-free survival was not remarkably different between immunotherapy and control groups (HR=0.94; 95% CI=0.74-1.18; p=0.59). Specific immunotherapy demonstrated remarkable improvement in survival of patients with glioma and could be a considerable choice of treatment in the future. Despite the current promising results, further high quality randomized controlled trials are required to approve immunotherapeutic approaches as the standard of care and the front-line treatment for glioma. PMID- 29320367 TI - Antimicrobial and antioxidant activities of two polyketides from lichen endophytic fungus Preussia sp. AB - Two compounds, compounds 1 and 2, were isolated from Preussia sp. The molecular structures of both compounds were elucidated by analyzing one-dimensional (1D) and 2D nuclear magnetic resonance data along with high-resolution mass spectrometry data. Compound 1 was obtained as novel in structure, and compound 2 was recently reported elsewhere. Compound 1 did not show antioxidant and antimicrobial activities and brine shrimp toxicity, while compound 2 showed strong antioxidant activity (DPPH reduction capacity; IC50=3 MUg/mL) and brine shrimp toxicity (LD50=50 MUg/mL). PMID- 29320368 TI - Pobeguinine: a monoterpene indole alkaloid and other bioactive constituents from the stem bark of Nauclea pobeguinii. PMID- 29320369 TI - Evidence of beta-antimonene at the Sb/Bi2Se3 interface. AB - We report a study of the interface between antimony and the prototypical topological insulator Bi2Se3. Scanning tunnelling microscopy measurements show the presence of ordered domains displaying a perfect lattice match with bismuth selenide. Density functional theory calculations of the most stable atomic configurations demonstrate that the ordered domains can be attributed to stacks of beta-antimonene. PMID- 29320370 TI - Spatial separation of electrons and holes for enhancing the gas-sensing property of a semiconductor: ZnO/ZnSnO3 nanorod arrays prepared by a hetero-epitaxial growth. AB - The construction of semiconductor composites is known as a powerful method used to realize the spatial separation of electrons and the holes in them, which can result in more electrons or holes and increase the dispersion of oxygen ions ([Formula: see text] and O - ) (one of the most critical factors for their gas sensing properties) on the surface of the semiconductor gas sensor. In this work, using 1D ZnO/ZnSnO3 nanoarrays as an example, which are prepared through a hetero epitaxial growing process to construct a chemically bonded interface, the above strategy to attain a better semiconductor gas-sensing property has been realized. Compared with single ZnSnO3 nanotubes and no-matching ZnO/ZnSnO3 nanoarrays gas sensors, it has been proven by x-ray photoelectron spectroscopy and photoluminescence spectrum examination that the as-obtained ZnO/ZnSnO3 sensor showed a greatly increased quantity of active surface electrons with exceptional responses to trace target gases and much lower optimum working temperatures (less than about 170 degrees C). For example, the as-obtained ZnO/ZnSnO3 sensor exhibited an obvious response and short response/recovery time (less than 10 s) towards trace H2S gas (a detection limit down to 700 ppb). The high responses and dynamic repeatability observed in these sensors reveal that the strategy based on the as-presented electron and hole separation is reliable for improving the gas sensing properties of semiconductors. PMID- 29320371 TI - Graphene as an active virtually massless top electrode for RF solidly mounted bulk acoustic wave (SMR-BAW) resonators. AB - Mechanical and electrical losses induced by an electrode material greatly influence the performance of bulk acoustic wave (BAW) resonators. Graphene as a conducting and virtually massless 2D material is a suitable candidate as an alternative electrode material for BAW resonators which reduces electrode induced mechanical losses. In this publication we show that graphene acts as an active top electrode for solidly mounted BAW resonators (BAW-SMR) at 2.1 GHz resonance frequency. Due to a strong decrease of mass loading and its remarkable electronic properties, graphene demonstrates its ability as an ultrathin conductive layer. In our experiments we used an optimized graphene wet transfer on aluminum nitride based solidly mounted resonator devices. We achieved more than a triplication of the resonator's quality factor Q and a resonance frequency close to an 'unloaded' resonator without metallization. Our results reveal the direct influence of both, the graphene quality and the graphene contacting via metal structures, on the performance characteristic of a BAW resonator. These findings clearly show the potential of graphene in minimizing mechanical losses due to its virtually massless character. Moreover, they highlight the advantages of graphene and other 2D conductive materials for alternative electrodes in electroacoustic resonators for radio frequency applications. PMID- 29320373 TI - Enhancement of ZnO based flexible nano generators via sol gel technique for sensing and energy harvesting applications. AB - Zinc oxide (ZnO) is a remarkable inorganic semiconductor with exceptional piezoelectric properties compared to other semiconductors. However, in comparison to lead-based hazardous piezoelectric materials, its features have undesired limitations. Here we report the 5~6 folds enhancement in the piezoelectric properties via chemical doping of copper matched to intrinsic ZnO. The flexible piezoelectric nanogenerator (F-PENG) device was fabricated using an unpretentious solution process of spin coating with other advantages like robust, low weight, improved adhesion, and low cost. The devices were used to demonstrate energy harvesting from a Standard weight as low as 4 gm and can work as a self-powered mass sensor in a broad range of 4 to 100 gm. The device exhibited a novel energy harvesting technique from a wind source due to its inherent flexibility. At three different velocities (10~30 m/s) and five different angles of attack (0~180 degrees), the device validated the ability to discern different velocities and directions of flow. The device will be useful for mapping the flow of air apart from harvesting the energy. The simulation was done to verify the underlining mechanism of aerodynamics involved in it. PMID- 29320372 TI - A dentin-derived hydrogel bioink for 3D bioprinting of cell laden scaffolds for regenerative dentistry. AB - Recent studies in tissue engineering have adopted extracellular matrix (ECM) derived scaffolds as natural and cytocompatible microenvironments for tissue regeneration. The dentin matrix, specifically, has been shown to be associated with a host of soluble and insoluble signaling molecules that can promote odontogenesis. Here, we have developed a novel bioink, blending printable alginate (3% w/v) hydrogels with the soluble and insoluble fractions of the dentin matrix. We have optimized the printing parameters and the concentrations of the individual components of the bioink for print accuracy, cell viability and odontogenic potential. We find that, while viscosity, and hence printability of the bioinks, was greater in the formulations containing higher concentrations of alginate, a higher proportion of insoluble dentin matrix proteins significantly improved cell viability; where a 1:1 ratio of alginate and dentin (1:1 Alg-Dent) was most suitable. We further demonstrate high retention of the soluble dentin molecules within the 1:1 Alg-Dent hydrogel blends, evidencing renewed interactions between these molecules and the dentin matrix post crosslinking. Moreover, at concentrations of 100 MUg ml-1, these soluble dentin molecules significantly enhanced odontogenic differentiation of stem cells from the apical papilla encapsulated in bioprinted hydrogels. In summary, the proposed novel bioinks have demonstrable cytocompatibility and natural odontogenic capacity, which can be a used to reproducibly fabricate scaffolds with complex three dimensional microarchitectures for regenerative dentistry in the future. PMID- 29320374 TI - Plasmonic and SERS performances of compound nanohole arrays fabricated by shadow sphere lithography. AB - Several plasmonic compound nanohole arrays (CNAs), such as triangular nanoholes and fan-like nanoholes with multiple nanotips and nanogaps, are designed by a simple and efficient shadow sphere lithography technique by tuning the sphere mask size, the deposition and azimuthal angles, substrate temperature T S , and the number of deposition steps N. Compared with conventional circular nanohole arrays, the CNAs show more hot spots and exhibit new transmission speaks. Systematic finite-difference time-domain calculations indicate that different resonance modes excited by the various shaped and sized nanoholes are responsible for the enhanced plasmonic performances of CNAs. Compared to the CNA samples with only one circular hole in the unit cell, the Raman scattering intensity of the CNA with multiple triangular nanoholes, nanogaps, and nanotips can be enhanced up to 5-fold. These CNAs, due to the strong resonance due to the multiple structural features, are promising applications as optical filters, plasmonic sensors, and surface-enhanced spectroscopies. PMID- 29320375 TI - Psychological flexibility mediates the effect of an online-based acceptance and commitment therapy for chronic pain: an investigation of change processes. AB - One way to improve treatment effects of chronic pain is to identify and improve control over mechanisms of therapeutic change. One treatment approach that includes a specific proposed mechanism is acceptance and commitment therapy (ACT) with its focus on increasing psychological flexibility (PF). The aim of the present study was to examine the role of PF as a mechanism of change in ACT. This is based on mediation analyses of data from a previously reported randomized controlled trial, evaluating the effectiveness of an ACT-based online intervention for chronic pain (ACTonPain). We performed secondary analyses on pretreatment, posttreatment, and follow-up data from 302 adults, receiving a guided (n = 100) or unguided (n = 101) version of ACTonPain, or allocated to the waitlist control group (n = 101). Structural equation modelling and a bias corrected bootstrap approach were applied to examine the indirect effects of the treatment through pretreatment and posttreatment changes in the latent construct reflecting PF. The latent construct consisted of data from the Chronic Pain Acceptance Questionnaire and the Acceptance and Action Questionnaire. The outcomes were pretreatment to follow-up changes in pain interference, anxiety, depression, pain, and mental and physical health. Structural equation modelling analyses revealed that changes in PF significantly mediated pretreatment to follow-up changes in all outcomes in the intervention groups compared with waitlist (standardized estimates ranged from I0.16I to I0.69I). Global model fit yielded modest but acceptable results. Findings are consistent with the theoretical framework behind ACT and contribute to growing evidence, supporting a focus on PF to optimize treatment effects. PMID- 29320376 TI - Poststroke Headache: An Underdiagnosed Entity? PMID- 29320377 TI - Out of the Box. PMID- 29320378 TI - An Examination of Fluoxetine for the Treatment of Selective Mutism Using a Nonconcurrent Multiple-Baseline Single-Case Design Across 5 Cases. AB - This study examined the utility of fluoxetine in the treatment of 5 children, aged 5 to 14 years, diagnosed with selective mutism who also demonstrated symptoms of social anxiety. A nonconcurrent, randomized, multiple-baseline, single-case design with a single-blind placebo-controlled procedure was used. Parents and the study psychiatrist completed multiple methods of assessment including Direct Behavior Ratings and questionnaires. Treatment outcomes were evaluated by calculating effect sizes for each participant as an individual and for the participants as a group. Information regarding adverse effects with an emphasis on behavioral disinhibition and ratings of parental acceptance of the intervention was gathered. All 5 children experienced improvement in social anxiety, responsive speech, and spontaneous speech with medium to large effect sizes; however, children still met criteria for selective mutism at the end of the study. Adverse events were minimal, with only 2 children experiencing brief occurrences of minor behavioral disinhibition. Parents found the treatment highly acceptable. PMID- 29320379 TI - Botulinum Toxin as a Treatment for Depression in a Real-world Setting. AB - OBJECTIVES: A series of randomized controlled trials have shown the efficacy of glabellar botulinum toxin (BTX) injection as a treatment for depression in women. We wanted to extend these findings and assess how they may be translated to a real-world setting. METHODS: For that purpose, 42 patients with severe, in most cases chronic and treatment-resistant depression received adjunctive treatment with BTX in private practice. Depression severity was rated before and 3 weeks after the treatment using the Hamilton Depression Rating Scale, the Montgomery Asberg Depression Rating Scale, and the Beck Depression Inventory. RESULTS: Almost all of the patients improved clinically, with depression scores dropping by 27% on all 3 scales in the sample as a whole. These changes were highly significant (P<0.001, paired t test or Wilcoxon test) and the absolute prepost score differences were similar to those observed in previous randomized controlled trials. Importantly, treatment effects did not differ between male (n=23) and female (n=19) patients. CONCLUSIONS: These findings suggest that glabellar BTX injection may also be effective in the treatment of severe depression and in the treatment of depression in men, when treatment is carried out not just in clinical trials but in real-world settings. PMID- 29320380 TI - Reducing the Risk of Type 2 Diabetes in Nonselected Outpatients With Schizophrenia: A 30-Month Program. AB - BACKGROUND: Type 2 diabetes is 2- to 3-fold more common in patients with schizophrenia than in the general population. A lifestyle with a focus on diet, exercise, and medication is required to prevent complications from type 2 diabetes, but patients with schizophrenia frequently have trouble maintaining such a lifestyle because of factors related to their illness, such as cognitive disturbances, negative and positive symptoms, and side effects of psychotropic medications. OBJECTIVE: To measure and reduce risk factors for type 2 diabetes in patients with schizophrenia and examine characteristics associated with positive outcomes. METHODS: This study, which was conducted in clinics treating both newly diagnosed and long-term (LT) patients with schizophrenia, evaluated the effects of a 30-month naturalistic intervention on improvement in the physical health of patients treated for schizophrenia and reduction in their risk factors for type 2 diabetes. The clinical intervention incorporated individual guidance, group sessions, and treatment as usual. RESULTS: Patients newly diagnosed with schizophrenia were found to have high consumption of soft drinks and low physical activity at their index evaluation. At follow-up, the physical profile of these patients had worsened, with increased weight, waist circumferences, visceral adiposity index (P=0.030), and glycosylated hemoglobin (HbA1c; P=0.010). Average HbA1c values increased in newly diagnosed male patients by 0.24 mmol/l (P=0.007). At follow-up, LT patients improved with regard to their consumption of soft drinks (P=0.001) and fast food (P=0.009). The LT patients also reduced their weight and waist circumferences and became more physically active. No changes in HbA1c values were found in the LT patients during the intervention period. CONCLUSION: The study found that positive outcomes were associated with female sex and a longer duration of illness. Negative outcomes with worsening of risk factors were associated with being newly diagnosed with schizophrenia and male sex. It was possible to produce improvements in some risk factors through individual health-oriented lifestyle interventions, especially in LT patients. PMID- 29320381 TI - A Brief Interview to Detect Panic Attacks and Panic Disorder in Emergency Department Patients with Cardiopulmonary Complaints. AB - OBJECTIVES: Patients with panic-related anxiety often initially present to the emergency department (ED) complaining of respiratory or cardiac symptoms, but rates of detection of panic symptoms by ED physicians remain low. This study was undertaken to evaluate the relevance of panic attacks and panic disorder in ED patients who present with cardiopulmonary symptoms and to determine whether a brief symptom-based tool could be constructed to assist in rapid recognition of panic-related anxiety in the ED setting. MATERIALS AND METHODS: English-speaking adult ED patients with a chief complaint of palpitations, chest pain, dizziness, or difficulty breathing were evaluated for the presence of panic attacks and panic disorder with the Structured Clinical Interview for DSM-IV Axis I Disorders. Participants completed self-report measures to assess panic-related symptoms, comorbid psychiatric conditions, health-related disability, and health service use. RESULTS: In this sample (N=200), 23.5% had panic attacks and 23.0% had panic disorder. Both groups reported higher rates of panic attack symptoms, greater psychiatric comorbidity, greater health-related disability, and higher rates of ED and mental health service use compared with those without either condition. A brief 7-item tool consisting of panic symptoms identified patients with panic attacks or panic disorder with 85% accuracy (area under the curve=0.90, sensitivity=82%, specificity=88%). CONCLUSIONS: Patients with panic attacks or panic disorder commonly present to the ED, but often go unrecognized. A brief 7-item clinician rating scale accurately identifies these patients among those ED patients presenting with cardiopulmonary complaints. PMID- 29320382 TI - Two New Psychotherapy Studies: Back to the Future? AB - This column reviews 2 recent high-quality psychotherapy research studies. One study by Steinert and colleagues suggests that psychodynamic therapy is equivalent to cognitive behavioral therapy (CBT) (or medication when this was the comparator) for a range of disorders. A second study by Barlow and colleagues finds Unified Protocol CBT targeting underlying emotional dysregulation to be equivalent to single disorder-specific CBT for a range of anxiety disorders. Taken together, these studies help bridge the gap between CBT and psychodynamic therapy and refocus us on the realities of clinical settings, where most patients present with multiple comorbid disorders. PMID- 29320383 TI - The Mask of Happiness: Unmasking Coercive Control in Intimate Relationships. AB - While most mental health professionals know how to recognize the obvious and most concerning presentations of possible intimate partner violence, there are numerous ways in which a partner may be controlled, bullied, isolated, exploited, and manipulated that do not present such observable signs. The literature pertaining to domestic abuse has increasingly moved away from injury as a necessary marker and instead has begun to highlight the importance of more covert but similarly deleterious processes within certain intimate relationships. It is crucial that mental health professionals inform themselves about other ways individuals are exploited with or without physical injury to ensure resources are made available to those who may be being harmed through manipulation, threats, fear, and isolation. This article defines and exemplifies the dynamic of coercive control, a more insidious and difficult to identify process of domination and exploitation that victims have a hard time labeling on their own. Further reading and resources are also provided. PMID- 29320384 TI - Cannabinoid Hyperemesis Syndrome and the Consulting Psychiatrist: A Case Study of Diagnosis and Treatment for an Emerging Disorder in Psychiatric Practice. AB - The increasing prevalence of cannabis use in the United States requires awareness of cannabis-related disorders and familiarity with treatment options. We present a case of cannabinoid hyperemesis syndrome that required psychiatric consultation for diagnostic clarification and effective treatment with intravenous haloperidol. Literature from emergency medicine, toxicology, and gastroenterology is reviewed, including proposed diagnostic criteria for cannabinoid hyperemesis syndrome and reported off-label treatment options, with a specific focus on clinical questions facing the practicing psychiatrist regarding this emerging disorder. PMID- 29320385 TI - Ketamine Use for Suicidal Ideation in the General Hospital: Case Report and Short Review. AB - Low-dose infusion of ketamine may have rapid antisuicide properties. Such a treatment may therefore be useful in the general hospital to prevent suicide in an environment that cannot be made safe enough. We report on the use of ketamine as an efficient, well-tolerated treatment for persistent suicidal ideation in a patient hospitalized in a general hospital after a severe suicide attempt. Based on data in the literature, we suggest that the benefit-risk ratio for ketamine use in such a context is highly favorable. PMID- 29320386 TI - Examining the Feasibility and Acceptability of an Online Yoga Class for Mood Disorders: A MoodNetwork Study. AB - BACKGROUND: Despite ongoing advances in the treatment of mood disorders, a substantial proportion of people diagnosed with major depression or bipolar disorder remain symptomatic over time. Yoga, which has been shown to reduce stress and depressive symptoms, as well as to improve overall quality of life, shows promise as an adjunctive treatment. However, dissemination of yoga for clinical populations remains challenging. The purpose of this pilot study was to test the feasibility and acceptability of an online yoga intervention for individuals with mood disorders. METHODS: In total, 56 adults who reported being diagnosed with a mood disorder (bipolar disorder, major depressive disorder, cyclothymia, or schizoaffective disorder) were recruited from MoodNetwork, an online community of individuals with mood disorders. A feedback survey and a measure of positive and negative affect were administered before and after a 30 minute online Hatha yoga class. RESULTS: In total, 44 individuals (78.6%) completed all components of the yoga class. The mean score on a 10-point Likert scale rating how much participants liked the online yoga class was 7.24 (SD=2.40). Most participants (67.9%) reported that they would be "somewhat likely" or "very likely" to participate in an online yoga program again. There was a statistically significant decrease in negative affect after completing the class (t=-6.05; P<0.001), but positive affect did not change (P>0.10). DISCUSSION: These preliminary data support the utility of online yoga tailored specifically for people with mood disorders as a possible adjunctive intervention that warrants further investigation. PMID- 29320387 TI - Identification of Inherited Retinal Disease-Associated Genetic Variants in 11 Candidate Genes. AB - Inherited retinal diseases (IRDs) display an enormous genetic heterogeneity. Whole exome sequencing (WES) recently identified genes that were mutated in a small proportion of IRD cases. Consequently, finding a second case or family carrying pathogenic variants in the same candidate gene often is challenging. In this study, we searched for novel candidate IRD gene-associated variants in isolated IRD families, assessed their causality, and searched for novel genotype phenotype correlations. Whole exome sequencing was performed in 11 probands affected with IRDs. Homozygosity mapping data was available for five cases. Variants with minor allele frequencies <= 0.5% in public databases were selected as candidate disease-causing variants. These variants were ranked based on their: (a) presence in a gene that was previously implicated in IRD; (b) minor allele frequency in the Exome Aggregation Consortium database (ExAC); (c) in silico pathogenicity assessment using the combined annotation dependent depletion (CADD) score; and (d) interaction of the corresponding protein with known IRD-associated proteins. Twelve unique variants were found in 11 different genes in 11 IRD probands. Novel autosomal recessive and dominant inheritance patterns were found for variants in Small Nuclear Ribonucleoprotein U5 Subunit 200 (SNRNP200) and Zinc Finger Protein 513 (ZNF513), respectively. Using our pathogenicity assessment, a variant in DEAH-Box Helicase 32 (DHX32) was the top ranked novel candidate gene to be associated with IRDs, followed by eight medium and lower ranked candidate genes. The identification of candidate disease-associated sequence variants in 11 single families underscores the notion that the previously identified IRD-associated genes collectively carry > 90% of the defects implicated in IRDs. To identify multiple patients or families with variants in the same gene and thereby provide extra proof for pathogenicity, worldwide data sharing is needed. PMID- 29320391 TI - Removal of Expression of Concern: Segneanu et al. Helleborus purpurascens-Amino Acid and Peptide Analysis Linked to the Chemical and Antiproliferative Properties of the Extracted Compounds. Molecules 2015, 20, 22170-22187. AB - The article [1] published in Molecules was the subject of a law suit related to authorship. We previously published an Expression of Concern to highlight this fact to readers[...]. PMID- 29320394 TI - Neurological Respiratory Failure. AB - West Nile virus infection in humans is mostly asymptomatic. Less than 1% of neuro invasive cases show a fatality rate of around 10%. Acute flaccid paralysis of respiratory muscles leading to respiratory failure is the most common cause of death. Although the peripheral nervous system can be involved, isolated phrenic nerve palsy leading to respiratory failure is rare and described in only two cases in the English literature. We present another case of neurological respiratory failure due to West Nile virus-induced phrenic nerve palsy. Our case reiterates the rare, but lethal, consequences of West Nile virus infection, and the increase of its awareness among physicians. PMID- 29320389 TI - Sponges: A Reservoir of Genes Implicated in Human Cancer. AB - Recently, it was shown that the majority of genes linked to human diseases, such as cancer genes, evolved in two major evolutionary transitions-the emergence of unicellular organisms and the transition to multicellularity. Therefore, it has been widely accepted that the majority of disease-related genes has already been present in species distantly related to humans. An original way of studying human diseases relies on analyzing genes and proteins that cause a certain disease using model organisms that belong to the evolutionary level at which these genes have emerged. This kind of approach is supported by the simplicity of the genome/proteome, body plan, and physiology of such model organisms. It has been established for quite some time that sponges are an ideal model system for such studies, having a vast variety of genes known to be engaged in sophisticated processes and signalling pathways associated with higher animals. Sponges are considered to be the simplest multicellular animals and have changed little during evolution. Therefore, they provide an insight into the metazoan ancestor genome/proteome features. This review compiles current knowledge of cancer related genes/proteins in marine sponges. PMID- 29320395 TI - Using Acceleration Data to Automatically Detect the Onset of Farrowing in Sows. AB - The aim of the present study was to automatically predict the onset of farrowing in crate-confined sows. (1) Background: Automatic tools are appropriate to support animal surveillance under practical farming conditions. (2) Methods: In three batches, sows in one farrowing compartment of the Futterkamp research farm were equipped with an ear sensor to sample acceleration. As a reference video, recordings of the sows were used. A classical CUSUM chart using different acceleration indices of various distribution characteristics with several scenarios were compared. (3) Results: The increase of activity mainly due to nest building behavior before the onset of farrowing could be detected with the sow individual CUSUM chart. The best performance required a statistical distribution characteristic that represented fluctuations in the signal (for example, 1st variation) combined with a transformation of this parameter by cumulating differences in the signal within certain time periods from one day to another. With this transformed signal, farrowing sows could reliably be detected. For 100% or 85% of the sows, an alarm was given within 48 or 12 h before the onset of farrowing. (4) Conclusions: Acceleration measurements in the ear of a sow are suitable for detecting the onset of farrowing in individually housed sows in commercial farrowing crates. PMID- 29320397 TI - In Silico Analysis of the Association Relationship between Neuroprotection and Flavors of Traditional Chinese Medicine Based on the mGluRs. AB - The metabotropic glutamate receptors (mGluRs) are known as both synaptic receptors and taste receptors. This feature is highly similar to the Property and Flavor theory of Traditional Chinese medicine (TCM), which has the pharmacological effect and flavor. In this study, six ligand based pharmacophore (LBP) models, seven homology modeling models, and fourteen molecular docking models of mGluRs were built based on orthosteric and allosteric sites to screening potential compounds from Traditional Chinese Medicine Database (TCMD). Based on the Pharmacopoeia of the People's Republic of China, TCMs of compounds and their flavors were traced and listed. According to the tracing result, we found that the TCMs of the compounds which bound to orthosteric sites of mGluRs are highly correlated to a sweet flavor, while the allosteric site corresponds to a bitter flavor. Meanwhile, the pharmacological effects of TCMs with highly frequent flavors were further analyzed. We found that those TCMs play a neuroprotective role through the efficiencies of detumescence, promoting blood circulation, analgesic effect, and so on. This study provides a guide for developing new neuroprotective drugs from TCMs which target mGluRs. Moreover, it is the first study to present a novel approach to discuss the association relationship between flavor and the neuroprotective mechanism of TCM based on mGluRs. PMID- 29320399 TI - On Farm Evaluation of a Novel Mechanical Cervical Dislocation Device for Poultry. AB - Urgent development of alternative on-farm killing methods for poultry is required following the number restrictions placed on the use of traditional manual cervical dislocation by European Legislation (EU 1099/2009). Alternatives must be proven to be humane and, crucially, practical in commercial settings with multiple users. We assessed the performance and reliability of a novel mechanical cervical dislocation device (NMCD) compared to the traditional manual cervical dislocation (MCD) method. NMCD was based on a novel device consisting of a thin supportive glove and two moveable metal finger inserts designed to aid the twisting motion of cervical dislocation. We employed a 2 * 2 factorial design, with a total of eight stockworkers from broiler and layer units (four per farm) each killing 70 birds per method. A successful kill performance was defined as immediate absence of rhythmic breathing and nictitating membrane reflex; a detectable gap in the vertebrae and only one kill attempt (i.e., one stretch and twist motion). The mean stockworker kill performance was significantly higher for MCD (98.4 +/- 0.5%) compared to NMCD (81.6 +/- 1.8%). However, the MCD technique normally used by the stockworkers (based previous in-house training received) affected the performance of NMCD and was confounded by unit type (broilers), with the majority of broiler stockworkers trained in a non-standard technique, making adaption to the NMCD more difficult. The consistency of trauma induced by the killing methods (based on several post-mortem parameters) was higher with NMCD demonstrated by "gold standard" trauma achieved in 30.2% of birds, compared to 11.4% for MCD (e.g., dislocation higher up the cervical region of the spine i.e., between vertebrae C0-C1, >=1 carotid arteries severed), suggesting it has the potential to improve welfare at killing. However, the results also suggest that the NMCD method requires further refinement and training optimization in order for it to be acceptable as an alternative across poultry industry, irrespective of previous MCD technique and training. PMID- 29320400 TI - Posidonia oceanica (L.) Delile Ethanolic Extract Modulates Cell Activities with Skin Health Applications. AB - Seagrasses are high plants sharing adaptive metabolic features with both terrestrial plants and marine algae, resulting in a phytocomplex possibly endowed with interesting biological properties. The aim of this study is to evaluate the in vitro activities on skin cells of an ethanolic extract obtained from the leaves of Posidonia oceanica (L.) Delile, family Potamogetonaceae, herein named Posidonia ethanolic extract (PEE). PEE showed high radical scavenging activity, high phenolic content, and resulted rich in chicoric acid, as determined through HPLC-MS analysis. The use of MTT assay on fibroblasts showed a PEE cytotoxicity threshold (IC05) of 50 ug/mL at 48 h, while a sub-toxic dose of 20 ug/mL induced a significant increase of fibroblast growth rate after 10 days. In addition, an ELISA assay revealed that PEE doses of 5 and 10 ug/mL induced collagen production in fibroblasts. PEE induced dose-dependent mushroom tyrosinase inhibition, up to about 45% inhibition at 1000 ug/mL, while 50% reduction of melanin was observed in melanoma cells exposed to 50 ug/mL PEE. Finally, PEE lipolytic activity was assessed by measuring glycerol release from adipocytes following triglyceride degradation. In conclusion, we have collected new data about the biological activities of the phytocomplex of P. oceanica seagrass on skin cells. Our findings indicate that PEE could be profitably used in the development of products for skin aging, undesired hyperpigmentation, and cellulite. PMID- 29320401 TI - Mediterranean Diet and Other Dietary Patterns in Primary Prevention of Heart Failure and Changes in Cardiac Function Markers: A Systematic Review. AB - BACKGROUND: Heart failure (HF) is a complex syndrome and is recognized as the ultimate pathway of cardiovascular disease (CVD). Studies using nutritional strategies based on dietary patterns have proved to be effective for the prevention and treatment of CVD. Although there are studies that support the protective effect of these diets, their effects on the prevention of HF are not clear yet. METHODS: We searched the Medline, Embase, and Cochrane databases for studies that examined dietary patterns, such as dietary approaches to stop hypertension (DASH diet), paleolithic, vegetarian, low-carb and low-fat diets and prevention of HF. No limitations were used during the search in the databases. RESULTS: A total of 1119 studies were identified, 14 met the inclusion criteria. Studies regarding the Mediterranean, DASH, vegetarian, and Paleolithic diets were found. The Mediterranean and DASH diets showed a protective effect on the incidence of HF and/or worsening of cardiac function parameters, with a significant difference in relation to patients who did not adhere to these dietary patterns. CONCLUSIONS: It is observed that the adoption of Mediterranean or DASH-type dietary patterns may contribute to the prevention of HF, but these results need to be analyzed with caution due to the low quality of evidence. PMID- 29320403 TI - Bacillibactin and Bacillomycin Analogues with Cytotoxicities against Human Cancer Cell Lines from Marine Bacillus sp. PKU-MA00093 and PKU-MA00092. AB - Nonribosomal peptides from marine Bacillus strains have received considerable attention for their complex structures and potent bioactivities. In this study, we carried out PCR-based genome mining for potential nonribosomal peptides producers from our marine bacterial library. Twenty-one "positive" strains were screened out from 180 marine bacterial strains, and subsequent small-scale fermentation, HPLC and phylogenetic analysis afforded Bacillus sp. PKU-MA00092 and PKU-MA00093 as two candidates for large-scale fermentation and isolation. Ten nonribosomal peptides, including four bacillibactin analogues (1-4) and six bacillomycin D analogues (5-10) were discovered from Bacillus sp. PKU-MA00093 and PKU-MA00092, respectively. Compounds 1 and 2 are two new compounds and the 1H NMR and 13C NMR data of compounds 7 and 9 is first provided. All compounds 1-10 were assayed for their cytotoxicities against human cancer cell lines HepG2 and MCF7, and the bacillomycin D analogues 7-10 showed moderate cytotoxicities with IC50 values from 2.9 +/- 0.1 to 8.2 +/- 0.2 uM. The discovery of 5-10 with different fatty acid moieties gave us the opportunity to reveal the structure-activity relationships of bacillomycin analogues against these human cancer cell lines. These results enrich the structural diversity and bioactivity properties of nonribosomal peptides from marine Bacillus strains. PMID- 29320404 TI - Anchoring ZnO Nanoparticles in Nitrogen-Doped Graphene Sheets as a High Performance Anode Material for Lithium-Ion Batteries. AB - A novel binary nanocomposite, ZnO/nitrogen-doped graphene (ZnO/NG), is synthesized via a facile solution method. In this prepared ZnO/NG composite, highly-crystalline ZnO nanoparticles with a size of about 10 nm are anchored uniformly on the N-doped graphene nanosheets. Electrochemical properties of the ZnO/NG composite as anode materials are systematically investigated in lithium ion batteries. Specifically, the ZnO/NG composite can maintain the reversible specific discharge capacity at 870 mAh g-1 after 200 cycles at 100 mA g-1. Besides the enhanced electronic conductivity provided by interlaced N-doped graphene nanosheets, the excellent lithium storage properties of the ZnO/NG composite can be due to nanosized structure of ZnO particles, shortening the Li+ diffusion distance, increasing reaction sites, and buffering the ZnO volume change during the charge/discharge process. PMID- 29320402 TI - The Secretory Response of Rat Peritoneal Mast Cells on Exposure to Mineral Fibers. AB - BACKGROUND: Exposure to mineral fibers is of substantial relevance to human health. A key event in exposure is the interaction with inflammatory cells and the subsequent generation of pro-inflammatory factors. Mast cells (MCs) have been shown to interact with titanium oxide (TiO2) and asbestos fibers. In this study, we compared the response of rat peritoneal MCs challenged with the asbestos crocidolite and nanowires of TiO2 to that induced by wollastonite employed as a control fiber. METHODS: Rat peritoneal MCs (RPMCs), isolated from peritoneal lavage, were incubated in the presence of mineral fibers. The quantities of secreted enzymes were evaluated together with the activity of fiber-associated enzymes. The ultrastructural morphology of fiber-interacting RPMCs was analyzed with electron microscopy. RESULTS: Asbestos and TiO2 stimulate MC secretion. Secreted enzymes bind to fibers and exhibit higher activity. TiO2 and wollastonite bind and improve enzyme activity, but to a lesser degree than crocidolite. CONCLUSIONS: (1) Mineral fibers are able to stimulate the mast cell secretory process by both active (during membrane interaction) and/or passive (during membrane penetration) interaction; (2) fibers can be found to be associated with secreted enzymes-this process appears to create long-lasting pro inflammatory environments and may represent the active contribution of MCs in maintaining the inflammatory process; (3) MCs and their enzymes should be considered as a therapeutic target in the pathogenesis of asbestos-induced lung inflammation; and (4) MCs can contribute to the inflammatory effect associated with selected engineered nanomaterials, such as TiO2 nanoparticles. PMID- 29320405 TI - Effect of shRNA Mediated Silencing of YB-1 Protein on the Expression of Matrix Collagenases in Malignant Melanoma Cell In Vitro. AB - Background and Objective: YB-1 is a transcription and oncogenic factor capable of binding to DNA and RNA performing versatile functions within normal and cancer cells. Some studies reported the binding of YB-1 with a collagenases gene promoter and influencing their expression. In addition, the role of YB-1 in malignant melanoma was not elucidated. Thus, in this study, the aim was to knock down the expression of YB-1 in A375 malignant melanoma cancer cell using the shRNA approach and study its effect on cancer cell proliferation, migration, and expression of collagenases. Methods: A375 malignant melanoma cell lines were grown in standard conditions and were transfected with three plasmids containing a retroviral pGFP-V-RS vector, two of them containing targeting sequences for YB 1 mRNA. The third plasmid contained a scrambled mRNA sequence as a negative control. Expression of YB-1 was validated using immune-fluorescence staining, RT PCR and western blotting. The cancer cell proliferation was determined using MTT assay, serial trypan blue cell counting and cell cycle flow-cytometry analysis. Expression of collagenases (MMP1, MMP8, and MMP13) was evaluated using RT-PCR and western blotting analysis. In addition, a wound-healing assay was used to assess cell migration potential. Statistical analysis was performed using one-way ANOVA test with Bonferroni post hoc analysis to compare the quantitative results among samples. Results: The established silenced cell strains (P1 and P2) had nearly 70% knockdown in the expression of YB-1. These YB-1 silenced strains had a significant cell cycle-specific reduction in cell proliferation (p < 0.05 in serial cell counting and cell cycle flow cytometry analysis, p < 0.001 in MTT assay). In addition, YB-1 silenced strains had a remarkable reduction in cell migration potential. Expression of MMP13 was significantly reduced in YB-1 silenced strains. Conclusion: YB-1 oncoprotein is a promising target in the treatment of malignant melanoma. Silencing of this protein is associated with significant anti-proliferative, anti-invasive and MMP13 insulating properties in A375 malignant melanoma cancer cell lines. PMID- 29320406 TI - A Police and Insurance Joint Management System Based on High Precision BDS/GPS Positioning. AB - Car ownership in China reached 194 million vehicles at the end of 2016. The traffic congestion index (TCI) exceeds 2.0 during rush hour in some cities. Inefficient processing for minor traffic accidents is considered to be one of the leading causes for road traffic jams. Meanwhile, the process after an accident is quite troublesome. The main reason is that it is almost always impossible to get the complete chain of evidence when the accident happens. Accordingly, a police and insurance joint management system is developed which is based on high precision BeiDou Navigation Satellite System (BDS)/Global Positioning System (GPS) positioning to process traffic accidents. First of all, an intelligent vehicle rearview mirror terminal is developed. The terminal applies a commonly used consumer electronic device with single frequency navigation. Based on the high precision BDS/GPS positioning algorithm, its accuracy can reach sub-meter level in the urban areas. More specifically, a kernel driver is built to realize the high precision positioning algorithm in an Android HAL layer. Thus the third party application developers can call the general location Application Programming Interface (API) of the original standard Global Navigation Satellite System (GNSS) to get high precision positioning results. Therefore, the terminal can provide lane level positioning service for car users. Next, a remote traffic accident processing platform is built to provide big data analysis and management. According to the big data analysis of information collected by BDS high precision intelligent sense service, vehicle behaviors can be obtained. The platform can also automatically match and screen the data that uploads after an accident to achieve accurate reproduction of the scene. Thus, it helps traffic police and insurance personnel to complete remote responsibility identification and survey for the accident. Thirdly, a rapid processing flow is established in this article to meet the requirements to quickly handle traffic accidents. The traffic police can remotely identify accident responsibility and the insurance personnel can remotely survey an accident. Moreover, the police and insurance joint management system has been carried out in Wuhan, Central China's Hubei Province, and Wuxi, Eastern China's Jiangsu Province. In a word, a system is developed to obtain and analyze multisource data including precise positioning and visual information, and a solution is proposed for efficient processing of traffic accidents. PMID- 29320407 TI - Biodistribution and Clearance of Stable Superparamagnetic Maghemite Iron Oxide Nanoparticles in Mice Following Intraperitoneal Administration. AB - Nanomedicine is an emerging field with great potential in disease theranostics. We generated sterically stabilized superparamagnetic iron oxide nanoparticles (s SPIONs) with average core diameters of 10 and 25 nm and determined the in vivo biodistribution and clearance profiles. Healthy nude mice underwent an intraperitoneal injection of these s-SPIONs at a dose of 90 mg Fe/kg body weight. Tissue iron biodistribution was monitored by atomic absorption spectroscopy and Prussian blue staining. Histopathological examination was performed to assess tissue toxicity. The 10 nm s-SPIONs resulted in higher tissue-iron levels, whereas the 25 nm s-SPIONs peaked earlier and cleared faster. Increased iron levels were detected in all organs and body fluids tested except for the brain, with notable increases in the liver, spleen, and the omentum. The tissue-iron returned to control or near control levels within 7 days post-injection, except in the omentum, which had the largest and most variable accumulation of s-SPIONs. No obvious tissue changes were noted although an influx of macrophages was observed in several tissues suggesting their involvement in s-SPION sequestration and clearance. These results demonstrate that the s-SPIONs do not degrade or aggregate in vivo and intraperitoneal administration is well tolerated, with a broad and transient biodistribution. In an ovarian tumor model, s-SPIONs were shown to accumulate in the tumors, highlighting their potential use as a chemotherapy delivery agent. PMID- 29320409 TI - Evaluating the Impact of a Clinician Improvement Program for Treating Patients with Intellectual and Developmental Disabilities: The Challenging Case of Mississippi. AB - In recent years, people with intellectual and developmental disabilities (IDD) have moved from institutionalized settings to local community residences. While deinstitutionalization has yielded quality of life improvements for people with IDD, this transition presents significant health-related challenges. Community clinicians have typically not been trained to provide sound medical care to people with IDD, a subpopulation that exhibits unique medical needs and significant health disparities. This study reports the results of a comprehensive evaluation of an IDD-focused clinician improvement program implemented throughout Mississippi. DETECT (Developmental Evaluation, Training and Consultative Team) was formed to equip Mississippi's physicians and nurses to offer competent medical care to people with IDD living in community residences. Given the state's pronounced health disparities and its clinician shortage, Mississippi offers a stringent test of program effectiveness. Results of objective survey indicators and subjective rating barometers administered before and after clinician educational seminars reveal robust statistically significant differences in clinician knowledge and self-assessed competence related to treating people with IDD. These results withstand controls for various confounding factors. Positive post-only results were also evident in a related program designed specifically for medical students. The study concludes by specifying a number of implications, including potential avenues for the wider dissemination of this program and promising directions for future research. PMID- 29320410 TI - Advances in Non-Destructive Early Assessment of Fruit Ripeness towards Defining Optimal Time of Harvest and Yield Prediction-A Review. AB - Global food security for the increasing world population not only requires increased sustainable production of food but a significant reduction in pre- and post-harvest waste. The timing of when a fruit is harvested is critical for reducing waste along the supply chain and increasing fruit quality for consumers. The early in-field assessment of fruit ripeness and prediction of the harvest date and yield by non-destructive technologies have the potential to revolutionize farming practices and enable the consumer to eat the tastiest and freshest fruit possible. A variety of non-destructive techniques have been applied to estimate the ripeness or maturity but not all of them are applicable for in situ (field or glasshouse) assessment. This review focuses on the non destructive methods which are promising for, or have already been applied to, the pre-harvest in-field measurements including colorimetry, visible imaging, spectroscopy and spectroscopic imaging. Machine learning and regression models used in assessing ripeness are also discussed. PMID- 29320408 TI - Outer Membrane Vesicle Vaccines from Biosafe Surrogates Prevent Acute Lethal Glanders in Mice. AB - Burkholderia mallei is a host-adapted Gram-negative mammalian pathogen that causes the severe disease glanders. Glanders can manifest as a rapid acute progression or a chronic debilitating syndrome primarily affecting solipeds and humans in close association with infected animals. In USA, B. mallei is classified as one of the most important bacterial biothreat agents. Presently, there is no licensed glanders vaccine available for humans or animals. In this work, outer membrane vesicles (OMVs) were isolated from three attenuated biosafe bacterial strains, Burkholderia pseudomallei Bp82, B. thailandensis E555, and B. thailandensis TxDOH and used to vaccinate mice. B. thailandensis OMVs induced significantly higher antibody responses that were investigated. B. mallei specific serum antibody responses were of higher magnitude in mice vaccinated with B. thailandensis OMVs compared to levels in mice vaccinated with B. pseudomallei OMVs. OMVs derived from biosafe strains protected mice from acute lethal glanders with vesicles from the two B. thailandensis strains affording significant protection (>90%) up to 35 days post-infection with some up to 60 days. Organ loads from 35-day survivors indicated bacteria colonization of the lungs, liver, and spleen while those from 60 days had high CFUs in the spleens. The highest antibody producing vaccine (B. thailandensis E555 OMVs) also protected C57BL/6 mice from acute inhalational glanders with evidence of full protection. PMID- 29320411 TI - Inihibition of Glycolysis by Using a Micro/Nano-Lipid Bromopyruvic Chitosan Carrier as a Promising Tool to Improve Treatment of Hepatocellular Carcinoma. AB - Glucose consumption in many types of cancer cells, in particular hepatocellular carcinoma (HCC), was followed completely by over-expression of type II hexokinase (HKII). This evidence has been used in modern pharmacotherapy to discover therapeutic target against glycolysis in cancer cells. Bromopyruvate (BrPA) exhibits antagonist property against HKII and can be used to inhibit glycolysis. However, the clinical application of BrPA is mostly combined with inhibition effect for healthy cells particularly erythrocytes. Our strategy is to encapsulate BrPA in a selected vehicle, without any leakage of BrPA out of vehicle in blood stream. This structure has been constructed from chitosan embedded into oleic acid layer and then coated by dual combination of folic acid (FA) and bovine serum albumin (BSA). With FA as specific ligand for cancer folate receptor and BSA that can be an easy binding for hepatocytes, they can raise the potential selection of carrier system. PMID- 29320414 TI - A New Localization System for Indoor Service Robots in Low Luminance and Slippery Indoor Environment Using Afocal Optical Flow Sensor Based Sensor Fusion. AB - In this paper, a new localization system utilizing afocal optical flow sensor (AOFS) based sensor fusion for indoor service robots in low luminance and slippery environment is proposed, where conventional localization systems do not perform well. To accurately estimate the moving distance of a robot in a slippery environment, the robot was equipped with an AOFS along with two conventional wheel encoders. To estimate the orientation of the robot, we adopted a forward viewing mono-camera and a gyroscope. In a very low luminance environment, it is hard to conduct conventional feature extraction and matching for localization. Instead, the interior space structure from an image and robot orientation was assessed. To enhance the appearance of image boundary, rolling guidance filter was applied after the histogram equalization. The proposed system was developed to be operable on a low-cost processor and implemented on a consumer robot. Experiments were conducted in low illumination condition of 0.1 lx and carpeted environment. The robot moved for 20 times in a 1.5 * 2.0 m square trajectory. When only wheel encoders and a gyroscope were used for robot localization, the maximum position error was 10.3 m and the maximum orientation error was 15.4 degrees . Using the proposed system, the maximum position error and orientation error were found as 0.8 m and within 1.0 degrees , respectively. PMID- 29320412 TI - Functional Testing of SLC26A4 Variants-Clinical and Molecular Analysis of a Cohort with Enlarged Vestibular Aqueduct from Austria. AB - The prevalence and spectrum of sequence alterations in the SLC26A4 gene, which codes for the anion exchanger pendrin, are population-specific and account for at least 50% of cases of non-syndromic hearing loss associated with an enlarged vestibular aqueduct. A cohort of nineteen patients from Austria with hearing loss and a radiological alteration of the vestibular aqueduct underwent Sanger sequencing of SLC26A4 and GJB2, coding for connexin 26. The pathogenicity of sequence alterations detected was assessed by determining ion transport and molecular features of the corresponding SLC26A4 protein variants. In this group, four uncharacterized sequence alterations within the SLC26A4 coding region were found. Three of these lead to protein variants with abnormal functional and molecular features, while one should be considered with no pathogenic potential. Pathogenic SLC26A4 sequence alterations were only found in 12% of patients. SLC26A4 sequence alterations commonly found in other Caucasian populations were not detected. This survey represents the first study on the prevalence and spectrum of SLC26A4 sequence alterations in an Austrian cohort and further suggests that genetic testing should always be integrated with functional characterization and determination of the molecular features of protein variants in order to unequivocally identify or exclude a causal link between genotype and phenotype. PMID- 29320413 TI - Adherence to the Mediterranean Diet and Inflammatory Markers. AB - The aim was to assess inflammatory markers among adults and adolescents in relation to the adherence to the Mediterranean diet. A random sample (219 males and 379 females) of the Balearic Islands population (12-65 years) was anthropometrically measured and provided a blood sample to determine biomarkers of inflammation. Dietary habits were assessed and the adherence to the Mediterranean dietary pattern calculated. The prevalence of metabolic syndrome increased with age in both sexes. The adherence to the Mediterranean diet in adolescent males was 51.3% and 45.7% in adults, whereas in females 53.1% and 44.3%, respectively. In males, higher adherence to the Mediterranean diet was associated with higher levels of adiponectin and lower levels of leptin, tumor necrosis factor alpha (TNF-alpha), plasminogen activator inhibitor 1 (PAI-1) and high-sensitivity C-reactive protein (hs-CRP) in adults, but not in young subjects. In females, higher adherence was associated with lower levels of leptin in the young group, PAI-1 in adults and hs-CRP in both groups. With increasing age in both sexes, metabolic syndrome increases, but the adherence to the Mediterranean diet decreases. Low adherence to the Mediterranean dietary pattern (MDP) is directly associated with a worse profile of plasmatic inflammation markers. PMID- 29320415 TI - Heavy Environmental Pressure in Campania and Other Italian Regions: A Short Review of Available Evidence. AB - The area of Naples and Campania region, in Italy, are experiencing the dramatic consequences of diffuse and illegal waste dumping, resulting in possible threats to human health. This area has been referred to as the "Land of Fires" because of the common practice of waste burning. International interest in the Campania "waste emergency" has triggered several epidemiological studies. This article is aimed at highlighting the body of evidence available concerning human and environmental contamination in the Campania region, and considers the possible lack of comparable knowledge about the situation in other areas suffering from high environmental pollution. We analyzed the results of studies addressing environmental pollution and population health in the Campania region, starting from the most recent reviews on this topic, and compared their findings with those concerning other regions. We reviewed 18 studies of epidemiological/cancer surveillance and human or animal biomonitoring. These studies show worrying results, which could be considered comparable to those available for other Italian areas impacted by heavy industrial activities. The release of environmental contaminants associated with waste incineration and waste disposal in landfills poses a risk to public health, as shown by a number of studies (although not conclusively). The current knowledge available for the Campania region is better than that available for other areas which are facing similar problems due to anthropic activities, including illegal waste trafficking. Thus, Naples and Campania could represent a valuable setting to develop general models for studies of environmental and human contamination. PMID- 29320417 TI - Social Support, Religious Endorsement, and Career Commitment: A Study on Saudi Nurses. AB - The present study investigates the effect of perceived social support (PSS) and perceived religious endorsement (PRE) on career commitment (CC) of Saudi nurses. The investigation also extends to the moderating role of different demographic and organizational factors in the extent of PSS, and career commitment these nurses report. Data required for meeting these study objectives were collected from male and female Saudi nurses through a structured questionnaire. Multiple regressions using Partial Least Squares based Structural Equation Model, Smart PLS version 3.0, and independent sample t-test using SPSS version 22.0, were used to analyze data. The study findings reveal that both perceived social support and perceived religious endorsement are important antecedents of career commitment of Saudi nurses. However, private-sector nurses are found to exhibit a significantly higher level of career commitment compared to their public-sector counterparts. Nurses with greater educational attainment perceive higher level of social support and express greater career commitment than their less educated peers. These findings suggest that nursing as a profession should be more openly discussed in both secular and religious contexts, to ensure an adequate level of respect and compassion on behalf of the public. In particular, endorsement from the individual nurses' social networks is vital in maintaining their wellbeing and career commitment. Given the religious influence in all aspects of life in the Saudi society, the current practice of gender-based segregation in Saudi hospitals and clinics seems to be meaningful for sustaining the career commitment of the nurses. PMID- 29320416 TI - Eating Patterns in Patients with Compensated Cirrhosis: A Case-Control Study. AB - BACKGROUND: There is growing evidence suggesting that maintaining an adequate nutritional status for patients with liver cirrhosis (LC) is relevant to prevent complications. The present study aimed to describe dietary behaviours of patients with compensated and non-complicated LC and comparing them with those of subjects from the general population. METHODS: In this case-control study, patients were volunteers enrolled in the ALICIR (ALImentation et CIRrhose) study, an observational survey nested in two French prospective cohorts of patients with biopsy-proven compensated cirrhosis related either to excessive alcohol consumption (CIRRAL) or to hepatitis B or C virus infection (CirVir). Controls were selected from the NutriNet-Sante cohort. Dietary data were collected through a semi quantitative food frequency questionnaire. Dietary and nutritional data were compared using multi-adjusted paired Student's tests. RESULTS: Between June 2014 and February 2016, 174 patients of CirVir (N = 97) or CIRRAL (N = 77) were matched with 348 controls from the NutriNet-Sante cohort, according to gender, age, BMI and educational level. Compared to controls, patients (mean +/- SD) consumed more sodas (236.0 +/- 29.8 mL vs. 83.0 +/- 33.0 mL) and water (1787.6 +/ 80.6 mL vs. 933.6 +/- 85.3 mL), and lower amounts of salty snacks (4.2 +/- 1.42 g vs. 9.0 +/- 1.6 g) and alcoholic beverages (71.8 +/- 23.4 g vs. 151.2 +/- 25.9 g), with all p values < 0.0001. Dietary behaviours differed according to LC aetiology. CONCLUSIONS: Dietary behaviour of patients significantly differed from subjects from the general population. PMID- 29320418 TI - Analysis of an ABE Scheme with Verifiable Outsourced Decryption. AB - Attribute-based encryption (ABE) is a popular cryptographic technology to protect the security of users' data in cloud computing. In order to reduce its decryption cost, outsourcing the decryption of ciphertexts is an available method, which enables users to outsource a large number of decryption operations to the cloud service provider. To guarantee the correctness of transformed ciphertexts computed by the cloud server via the outsourced decryption, it is necessary to check the correctness of the outsourced decryption to ensure security for the data of users. Recently, Li et al. proposed a full verifiability of the outsourced decryption of ABE scheme (ABE-VOD) for the authorized users and unauthorized users, which can simultaneously check the correctness of the transformed ciphertext for both them. However, in this paper we show that their ABE-VOD scheme cannot obtain the results which they had shown, such as finding out all invalid ciphertexts, and checking the correctness of the transformed ciphertext for the authorized user via checking it for the unauthorized user. We first construct some invalid ciphertexts which can pass the validity checking in the decryption algorithm. That means their "verify-then-decrypt" skill is unavailable. Next, we show that the method to check the validity of the outsourced decryption for the authorized users via checking it for the unauthorized users is not always correct. That is to say, there exist some invalid ciphertexts which can pass the validity checking for the unauthorized user, but cannot pass the validity checking for the authorized user. PMID- 29320420 TI - Locally Advanced Pancreatic Cancer: A Review of Local Ablative Therapies. AB - Pancreatic cancer is typically characterized by its aggressive tumor growth and dismal prognosis. Approximately 30% of patients with pancreatic cancer present with locally advanced disease, broadly defined as having a tumor-to-artery interface >180 degrees , having an unreconstructable portal vein or superior mesenteric vein and no signs of metastatic disease. These patients are currently designated to palliative systemic chemotherapy, though median overall survival remains poor (approximately 11 months). Therefore, several innovative local therapies have been investigated as new treatment options for locally advanced pancreatic cancer (LAPC). This article provides an overview of available data with regard to morbidity and oncological outcome of novel local therapies for LAPC. PMID- 29320422 TI - Feasibility of Detecting Natural Frequencies of Hydraulic Turbines While in Operation, Using Strain Gauges. AB - Nowadays, hydropower plays an essential role in the energy market. Due to their fast response and regulation capacity, hydraulic turbines operate at off-design conditions with a high number of starts and stops. In this situation, dynamic loads and stresses over the structure are high, registering some failures over time, especially in the runner. Therefore, it is important to know the dynamic response of the runner while in operation, i.e., the natural frequencies, damping and mode shapes, in order to avoid resonance and fatigue problems. Detecting the natural frequencies of hydraulic turbine runners while in operation is challenging, because they are inaccessible structures strongly affected by their confinement in water. Strain gauges are used to measure the stresses of hydraulic turbine runners in operation during commissioning. However, in this paper, the feasibility of using them to detect the natural frequencies of hydraulic turbines runners while in operation is studied. For this purpose, a large Francis turbine runner (444 MW) was instrumented with several strain gauges at different positions. First, a complete experimental strain modal testing (SMT) of the runner in air was performed using the strain gauges and accelerometers. Then, the natural frequencies of the runner were estimated during operation by means of analyzing accurately transient events or rough operating conditions. PMID- 29320421 TI - Comparative Analysis of Different Platelet Lysates and Platelet Rich Preparations to Stimulate Tendon Cell Biology: An In Vitro Study. AB - The poor healing potential of tendons is still a clinical problem, and the use of Platelet Rich Plasma (PRP) was hypothesized to stimulate healing. As the efficacy of PRPs remains unproven, platelet lysate (PL) could be an alternative with its main advantages of storage and characterization before use. Five different blood products were prepared from 16 male donors: human serum, two PRPs (Arthrex, (PRP ACP); RegenLab (PRP-BCT)), platelet concentrate (apheresis, PC), and PL (freezing thawing destruction of PC). Additionally, ten commercial allogenic PLs (AlloPL) from pooled donors were tested. The highest concentration of most growth factors was found in AlloPL, whereas the release of growth factors lasted longer in the other products. PRP-ACP, PRP-BCT, and PC significantly increased cell viability of human tenocyte-like cells, whereas PC and AlloPL increased Col1A1 expression and PRP-BCT increased Col3A1 expression. MMP-1, IL-1beta, and HGF expression was significantly increased and Scleraxis expression decreased by most blood products. COX1 expression significantly decreased by PC and AlloPL. No clear positive effects on tendon cell biology could be shown, which might partially explain the weak outcome results in clinical practice. Pooled PL seemed to have the most beneficial effects and might be the future in using blood products for tendon tissue regeneration. PMID- 29320423 TI - New Thiazoline-Tetralin Derivatives and Biological Activity Evaluation. AB - In this study, novel N'-(3-cyclohexyl/phenyl-4-(substituted phenyl)thiazole-2(3H) ylidene)-2-[(5,6,7,8-tetrahydronaphthalen-2-yl)oxy]acetohydrazide (4a-4k) derivatives were synthesized and their anticancer potency were evaluated on human breast adenocarcinoma cell line (MCF-7), human lung carcinoma cell line (A549) and mouse embryoblast cell line (NIH/3T3) using the MTT method, DNA synthesis inhibition and flow cytometric analysis. Compound 4e bearing 4-methoxyphenyl moiety exhibited the highest antitumor efficiency against MCF-7 cell line with higher DNA synthesis inhibition and apoptotic cell percentages (ealy+late apoptotic cell). On the other hand, compounds 4f, 4g, and 4h bearing 4-bromo, 4 chloro and 4-florophenyl moieties, respectively caused excellent apoptosis levels against A549 cell line when treated with lower concentration even than cisplatin. Anticholinesterase activity of the compounds were also tested, compound 4h showed 49.92% inhibition of acetylcholinesterase (AChE). PMID- 29320424 TI - A Retrospective Examination of Feline Leukemia Subgroup Characterization: Viral Interference Assays to Deep Sequencing. AB - Feline leukemia virus (FeLV) was the first feline retrovirus discovered, and is associated with multiple fatal disease syndromes in cats, including lymphoma. The original research conducted on FeLV employed classical virological techniques. As methods have evolved to allow FeLV genetic characterization, investigators have continued to unravel the molecular pathology associated with this fascinating agent. In this review, we discuss how FeLV classification, transmission, and disease-inducing potential have been defined sequentially by viral interference assays, Sanger sequencing, PCR, and next-generation sequencing. In particular, we highlight the influences of endogenous FeLV and host genetics that represent FeLV research opportunities on the near horizon. PMID- 29320426 TI - Self-Assembled AgNP-Containing Nanocomposites Constructed by Electrospinning as Efficient Dye Photocatalyst Materials for Wastewater Treatment. AB - The design and self-assembly of graphene oxide (GO)-based composite membranes have attracted enormous attention due to their wide application in nanomaterial and environmental fields. In this work, we have successfully developed a strategy to fabricate new composite membranes based on poly(vinyl alcohol)/poly(acrylic acid)/carboxyl-functionalized graphene oxide modified with silver nanoparticles (PVA/PAA/GO-COOH@AgNPs), which were prepared via thermal treatment and the electrospinning technique. Due to the strong pi-pi forces and strong electrostatic interactions of GO-COOH sheets, the prepared composite membranes and their lager surface areas were modified by scores of AgNPs, which demonstrated that a high-efficiency photocatalyst removed the organic dyes from the aqueous solutions. The prepared PVA/PAA/GO-COOH@AgNPs nanocomposite membranes showed a remarkable photocatalytic capacity in the catalytic degradation of the methylene blue dye solutions. Most importantly, the whole process was easy, mild, and eco-friendly. Additionally, the as-prepared membranes could be repeatedly used after the catalytic reaction. PMID- 29320425 TI - Targeting Pancreatic Cancer Cell Plasticity: The Latest in Therapeutics. AB - Mortality remains alarmingly high for patients diagnosed with pancreatic ductal adenocarcinoma (PDAC), with 93% succumbing to the disease within five years. The vast majority of PDAC cases are driven by activating mutations in the proto oncogene KRAS, which results in constitutive proliferation and survival signaling. As efforts to target RAS and its downstream effectors continue, parallel research aimed at identifying novel targets is also needed in order to improve therapeutic options and efficacy. Recent studies demonstrate that self renewing cancer stem cells (CSCs) contribute to metastatic dissemination and therapy failure, the causes of mortality from PDAC. Here, we discuss current challenges in PDAC therapeutics, highlight the contribution of mesenchymal/CSC plasticity to PDAC pathogenesis, and propose that targeting the drivers of plasticity will prove beneficial. Increasingly, intrinsic oncogenic and extrinsic pro-growth/survival signaling emanating from the tumor microenvironment (TME) are being implicated in the de novo generation of CSC and regulation of tumor cell plasticity. An improved understanding of key regulators of PDAC plasticity is providing new potential avenues for targeting the properties associated with CSC (including enhanced invasion and migration, metastatic outgrowth, and resistance to therapy). Finally, we describe the growing field of therapeutics directed at cancer stem cells and cancer cell plasticity in order to improve the lives of patients with PDAC. PMID- 29320427 TI - Peptide-Mediated Liposome Fusion: The Effect of Anchor Positioning. AB - A minimal model system for membrane fusion, comprising two complementary peptides dubbed "E" and "K" joined to a cholesterol anchor via a polyethyleneglycol spacer, has previously been developed in our group. This system promotes the fusion of large unilamellar vesicles and facilitates liposome-cell fusion both in vitro and in vivo. Whilst several aspects of the system have previously been investigated to provide an insight as to how fusion is facilitated, anchor positioning has not yet been considered. In this study, the effects of placing the anchor at either the N-terminus or in the center of the peptide are investigated using a combination of circular dichroism spectroscopy, dynamic light scattering, and fluorescence assays. It was discovered that anchoring the "K" peptide in the center of the sequence had no effect on its structure, its ability to interact with membranes, or its ability to promote fusion, whereas anchoring the 'E' peptide in the middle of the sequence dramatically decreases fusion efficiency. We postulate that anchoring the 'E' peptide in the middle of the sequence disrupts its ability to form homodimers with peptides on the same membrane, leading to aggregation and content leakage. PMID- 29320428 TI - Monitoring Reaction Paths Using Vibrational Spectroscopies: The Case of the Dehydrogenation of Propane toward Propylene on Pd-Doped Cu(111) Surface. AB - Monitoring reaction paths is not only a fundamental scientific issue but also helps us to understand and optimize the catalytic process. Infrared (IR) and Raman spectroscopies are powerful tools for detecting particular molecules or intermediate products as a result of their ability to provide the molecular "finger-print". However, theoretical modeling for the vibrational spectra of molecular adsorbates on metallic surfaces is a long-standing challenge, because accurate descriptions of the electronic structure for both the metallic substrates and adsorbates are required. In the present work, we applied a quasi analytical IR and Raman simulation method to monitor the dehydrogenation of propane towards propylene on a Pd-doped Cu(111) surface in real-time. Different Pd ensembles were used to construct the single-atom catalyst (SAC). We found that the number of sublayer Pd atoms could only affect the intensity of the peak rather than the peak position on the vibrational spectra. However, with the dehydrogenation reaction proceeding, both IR and Raman spectra were changed greatly, which indicates that every reaction step can be distinguished from the point of view of vibrational spectroscopies. Additionally, we found that the catalytic process, which starts from different initial states, shows different spectral profiles. The present results suggest that the vibrational spectroscopies obtained by the high-precision simulations pave the way for identifying different catalytic reaction paths. PMID- 29320429 TI - Very High Cycle Fatigue Behavior of a Directionally Solidified Ni-Base Superalloy DZ4. AB - The effect of casting pores on the very high cycle fatigue (VHCF) behavior of a directionally solidified (DS) Ni-base superalloy DZ4 is investigated. Casting and hot isostatic pressing (HIP) specimens were subjected to very high cycle fatigue loading in an ambient atmosphere. The results demonstrated that the continuously descending S-N curves were exhibited for both the casting and HIP specimens. Due to the elimination of the casting pores, the HIP samples had better fatigue properties than the casting samples. The subsurface crack initiated from the casting pore in the casting specimens at low stress amplitudes, whereas fatigue crack initiated from crystallographic facet decohesion for the HIP specimens. When considering the casting pores as initial cracks, there exists a critical stress intensity threshold ranged from 1.1 to 1.3 MPa m , below which fatigue cracks may not initiate from the casting pores. Furthermore, the effect of the casting pores on the fatigue limit is estimated based on a modified El Haddad model, which is in good agreement with the experimental results. Fatigue life for both the casting and HIP specimens is well predicted using the Fatigue Indicator Parameter (FIP) model. PMID- 29320430 TI - Compatibility between Co-Metallized PbTe Thermoelectric Legs and an Ag-Cu-In Brazing Alloy. AB - In thermoelectric (TE) generators, maximizing the efficiency of conversion of direct heat to electricity requires the reduction of any thermal and electrical contact resistances between the TE legs and the metallic contacts. This requirement is especially challenging in the development of intermediate to high temperature TE generators. PbTe-based TE materials are known to be highly efficient up to temperatures of around 500 degrees C; however, only a few practical TE generators based on these materials are currently commercially available. One reason for that is the insufficient bonding techniques between the TE legs and the hot-side metallic contacts. The current research is focused on the interaction between cobalt-metallized n-type 9.104 * 10-3 mol % PbI2-doped PbTe TE legs and the Ag0.32Cu0.43In0.25 brazing alloy, which is free of volatile species. Clear and fine interfaces without any noticeable formation of adverse brittle intermetallic compounds were observed following prolonged thermal treatment testing. Moreover, a reasonable electrical contact resistance of ~2.25 mOmegamm2 was observed upon brazing at 600 degrees C, highlighting the potential of such contacts while developing practical PbTe-based TE generators. PMID- 29320434 TI - Small Imaging Depth LIDAR and DCNN-Based Localization for Automated Guided Vehicle. AB - We present our third prototype sensor and a localization method for Automated Guided Vehicles (AGVs), for which small imaging LIght Detection and Ranging (LIDAR) and fusion-based localization are fundamentally important. Our small imaging LIDAR, named the Single-Photon Avalanche Diode (SPAD) LIDAR, uses a time of-flight method and SPAD arrays. A SPAD is a highly sensitive photodetector capable of detecting at the single-photon level, and the SPAD LIDAR has two SPAD arrays on the same chip for detection of laser light and environmental light. Therefore, the SPAD LIDAR simultaneously outputs range image data and monocular image data with the same coordinate system and does not require external calibration among outputs. As AGVs travel both indoors and outdoors with vibration, this calibration-less structure is particularly useful for AGV applications. We also introduce a fusion-based localization method, named SPAD DCNN, which uses the SPAD LIDAR and employs a Deep Convolutional Neural Network (DCNN). SPAD DCNN can fuse the outputs of the SPAD LIDAR: range image data, monocular image data and peak intensity image data. The SPAD DCNN has two outputs: the regression result of the position of the SPAD LIDAR and the classification result of the existence of a target to be approached. Our third prototype sensor and the localization method are evaluated in an indoor environment by assuming various AGV trajectories. The results show that the sensor and localization method improve the localization accuracy. PMID- 29320432 TI - Validity of Predictive Equations for Resting Energy Expenditure Developed for Obese Patients: Impact of Body Composition Method. AB - Predictive equations have been specifically developed for obese patients to estimate resting energy expenditure (REE). Body composition (BC) assessment is needed for some of these equations. We assessed the impact of BC methods on the accuracy of specific predictive equations developed in obese patients. REE was measured (mREE) by indirect calorimetry and BC assessed by bioelectrical impedance analysis (BIA) and dual-energy X-ray absorptiometry (DXA). mREE, percentages of prediction accuracy (+/-10% of mREE) were compared. Predictive equations were studied in 2588 obese patients. Mean mREE was 1788 +/- 6.3 kcal/24 h. Only the Muller (BIA) and Harris & Benedict (HB) equations provided REE with no difference from mREE. The Huang, Muller, Horie-Waitzberg, and HB formulas provided a higher accurate prediction (>60% of cases). The use of BIA provided better predictions of REE than DXA for the Huang and Muller equations. Inversely, the Horie-Waitzberg and Lazzer formulas provided a higher accuracy using DXA. Accuracy decreased when applied to patients with BMI >= 40, except for the Horie Waitzberg and Lazzer (DXA) formulas. Muller equations based on BIA provided a marked improvement of REE prediction accuracy than equations not based on BC. The interest of BC to improve REE predictive equations accuracy in obese patients should be confirmed. PMID- 29320431 TI - Galectin Targeted Therapy in Oncology: Current Knowledge and Perspectives. AB - The incidence and mortality of cancer have increased over the past decades. Significant progress has been made in understanding the underpinnings of this disease and developing therapies. Despite this, cancer still remains a major therapeutic challenge. Current therapeutic research has targeted several aspects of the disease such as cancer development, growth, angiogenesis and metastases. Many molecular and cellular mechanisms remain unknown and current therapies have so far failed to meet their intended potential. Recent studies show that glycans, especially oligosaccharide chains, may play a role in carcinogenesis as recognition patterns for galectins. Galectins are members of the lectin family, which show high affinity for beta-galactosides. The galectin-glycan conjugate plays a fundamental role in metastasis, angiogenesis, tumor immunity, proliferation and apoptosis. Galectins' action is mediated by a structure containing at least one carbohydrate recognition domain (CRD). The potential prognostic value of galectins has been described in several neoplasms and helps clinicians predict disease outcome and determine therapeutic interventions. Currently, new therapeutic strategies involve the use of inhibitors such as competitive carbohydrates, small non-carbohydrate binding molecules and antibodies. This review outlines our current knowledge regarding the mechanism of action and potential therapy implications of galectins in cancer. PMID- 29320435 TI - Updated Overview of Infrared Spectroscopy Methods for Detecting Mycotoxins on Cereals (Corn, Wheat, and Barley). AB - Each year, mycotoxins cause economic losses of several billion US dollars worldwide. Consequently, methods must be developed, for producers and cereal manufacturers, to detect these toxins and to comply with regulations. Chromatographic reference methods are time consuming and costly. Thus, alternative methods such as infrared spectroscopy are being increasingly developed to provide simple, rapid, and nondestructive methods to detect mycotoxins. This article reviews research conducted over the last eight years into the use of near-infrared and mid-infrared spectroscopy to monitor mycotoxins in corn, wheat, and barley. More specifically, we focus on the Fusarium species and on the main fusariotoxins of deoxynivalenol, zearalenone, and fumonisin B1 and B2. Quantification models are insufficiently precise to satisfy the legal requirements. Sorting models with cutoff levels are the most promising applications. PMID- 29320433 TI - Benefits of Fish Oil Consumption over Other Sources of Lipids on Metabolic Parameters in Obese Rats. AB - This study evaluated the effect of the consumption of different levels and sources of lipids on metabolic parameters of Wistar rats. Animals were fed with high-fat diet (HFD) containing 20% of lard for 12 weeks to cause metabolic obesity. Subsequently, the animals were divided into six groups and were fed diets with lipid concentrations of 5% or 20% of lard (LD), soybean oil (SO) or fish oil (FO), for 4 weeks. Data were submitted to analysis of variance (two-way) followed by Tukey post hoc test (p < 0.05). The groups that consumed FO showed less weight gain and lower serum levels of triacylglycerol (TAG), total cholesterol and fractions, aspartate aminotransferase (AST) activity, atherogenic index, less amount of fat in the carcass, decreased Lee index and lower total leukocyte counting (p < 0.05). These same parameters were higher in LD treatment (p < 0.05). In the concentration of 20%, carcass fat content, blood glucose levels, as well as alanine aminotransferase (ALT) and gamma glutamyl transferase (GGT) decreased in FO groups (p < 0.05). The SO group had intermediate results regarding the other two treatments (FO and LD). We concluded that fish oil intake was able to modulate positively the metabolic changes resulting from HFD. PMID- 29320436 TI - The Feasibility and Usability of RunningCoach: A Remote Coaching System for Long Distance Runners. AB - Studies have shown that about half of the injuries sustained during long-distance running involve the knee. Cadence (steps per minute) has been identified as a factor that is strongly associated with these running-related injuries, making it a worthwhile candidate for further study. As such, it is critical for long distance runners to minimize their risk of injury by running at an appropriate running cadence. In this paper, we present the results of a study on the feasibility and usability of RunningCoach, a mobile health (mHealth) system that remotely monitors running cadence levels of runners in a continuous fashion, among other variables, and provides immediate feedback to runners in an effort to help them optimize their running cadence. PMID- 29320437 TI - Is Hypovitaminosis D Related to Incidence of Type 2 Diabetes and High Fasting Glucose Level in Healthy Subjects: A Systematic Review and Meta-Analysis of Observational Studies. AB - There is evidence that vitamin D status is associated with type 2 diabetes. Many observational studies have been performed investigating the relationship of vitamin D status and circulating biomarkers of glycemic regulation. To find out whether this association holds, we conducted a systematic review and meta analysis of cross sectional and longitudinal studies. We searched Pubmed, Medline and Embase, all through June 2017. The studies were selected to determine the effect of vitamin D on the parameters of glucose metabolism in diabetic and non diabetic subjects. Correlation coefficients from all studies were pooled in a random effects meta-analysis. The risk of bias was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE) system. We found significant inverse relationship of vitamin D status with glycemic level in both diabetic (r = -0.223, 95% CI = -0.184 to -0.261, p = 0.000) and non-diabetic (r = -0.073, 95% CI = -0.052 to -0.093, p = 0.000) subjects. This meta-analysis concludes that hypovitaminosis D is associated with increased risk of hyperglycemia both in diabetic and non-diabetic subjects. A future strategy for the prevention of impaired glycemic regulation could be individualized supplementation of vitamin D. PMID- 29320438 TI - Modeling Unobserved Heterogeneity in Susceptibility to Ambient Benzo[a]pyrene Concentration among Children with Allergic Asthma Using an Unsupervised Learning Algorithm. AB - Current studies of gene * air pollution interaction typically seek to identify unknown heritability of common complex illnesses arising from variability in the host's susceptibility to environmental pollutants of interest. Accordingly, a single component generalized linear models are often used to model the risk posed by an environmental exposure variable of interest in relation to a priori determined DNA variants. However, reducing the phenotypic heterogeneity may further optimize such approach, primarily represented by the modeled DNA variants. Here, we reduce phenotypic heterogeneity of asthma severity, and also identify single nucleotide polymorphisms (SNP) associated with phenotype subgroups. Specifically, we first apply an unsupervised learning algorithm method and a non-parametric regression to find a biclustering structure of children according to their allergy and asthma severity. We then identify a set of SNPs most closely correlated with each sub-group. We subsequently fit a logistic regression model for each group against the healthy controls using benzo[a]pyrene (B[a]P) as a representative airborne carcinogen. Application of such approach in a case-control data set shows that SNP clustering may help to partly explain heterogeneity in children's asthma susceptibility in relation to ambient B[a]P concentration with greater efficiency. PMID- 29320441 TI - RESTOP: Retaining External Peripheral State in Intermittently-Powered Sensor Systems. AB - Energy harvesting sensor systems typically incorporate energy buffers (e.g., rechargeable batteries and supercapacitors) to accommodate fluctuations in supply. However, the presence of these elements limits the miniaturization of devices. In recent years, researchers have proposed a new paradigm, transient computing, where systems operate directly from the energy harvesting source and allow computation to span across power cycles, without adding energy buffers. Various transient computing approaches have addressed the challenge of power intermittency by retaining the processor's state using non-volatile memory. However, no generic approach has yet been proposed to retain the state of peripherals external to the processing element. This paper proposes RESTOP, flexible middleware which retains the state of multiple external peripherals that are connected to a computing element (i.e., a microcontroller) through protocols such as SPI or I 2 C. RESTOP acts as an interface between the main application and the peripheral, which keeps a record, at run-time, of the transmitted data in order to restore peripheral configuration after a power interruption. RESTOP is practically implemented and validated using three digitally interfaced peripherals, successfully restoring their configuration after power interruptions, imposing a maximum time overhead of 15% when configuring a peripheral. However, this represents an overhead of only 0.82% during complete execution of our typical sensing application, which is substantially lower than existing approaches. PMID- 29320439 TI - Semisynthesis and Biological Evaluation of Oleanolic Acid 3-O-beta-d Glucuronopyranoside Derivatives for Protecting H9c2 Cardiomyoblasts against H2O2 Induced Injury. AB - A series of novel oleanolic acid 3-O-beta-d-glucuronopyranoside derivatives have been designed and synthesized. Biological evaluation has indicated that some of the synthesized compounds exhibit moderate to good activity against H2O2-induced injury in rat myocardial cells (H9c2). Particularly, derivative 28-N-isobutyl ursolic amide 3-O-beta-d-galactopyranoside (8a) exhibited a greater protective effect than the positive control oleanolic acid 3-O-beta-d-glucuronopyranoside, indicating that it possesses a great potential for further development as a cardiovascular disease modulator by structural modification. PMID- 29320442 TI - Optimization of Fermentation Conditions and Bench-Scale for Improvement of a Novel Glycoprotein GP-1 Production by Streptomyces kanasenisi ZX01. AB - GP-1 is a novel glycoprotein produced by Streptomyces kanasenisi ZX01 that was isolated from soil near Kanas Lake with significant bioactivity against tobacco mosaic virus. However, extremely low fermentation production has largely hindered further research and market applications on glycoprotein GP-1. In this study, response surface methodology was used to optimize fermentation conditions in a shake flask for higher glycoprotein GP-1 production. When the optimized fermentation conditions were inoculum volume of 6%, initial pH of 6.5, and rotating speed of 150 rpm, glycoprotein GP-1 production could reach 0.9253 mg/L, which was increased by 52.14% compared to the original conditions. In addition, scale-up fermentation was conducted in a 5-L bioreactor to preliminarily explore the feasibility for mass production of glycoprotein GP-1 in a large fermentor, obtaining GP-1 production of 2.54 mg/L under the same conditions, which was 2.75 times higher than the production obtained from a shake flask of 0.9253 mg/L. This work will be helpful to improve GP-1 production on a large scale and lay the foundations for developing it as a novel agent against plant virus. PMID- 29320443 TI - Evaluation of Asphalt Mixture Low-Temperature Performance in Bending Beam Creep Test. AB - Low-temperature cracking is one of the most common road pavement distress types in Poland. While bitumen performance can be evaluated in detail using bending beam rheometer (BBR) or dynamic shear rheometer (DSR) tests, none of the normalized test methods gives a comprehensive representation of low-temperature performance of the asphalt mixtures. This article presents the Bending Beam Creep test performed at temperatures from -20 degrees C to +10 degrees C in order to evaluate the low-temperature performance of asphalt mixtures. Both validation of the method and its utilization for the assessment of eight types of wearing courses commonly used in Poland were described. The performed test indicated that the source of bitumen and its production process (and not necessarily only bitumen penetration) had a significant impact on the low-temperature performance of the asphalt mixtures, comparable to the impact of binder modification (neat, polymer-modified, highly modified) and the aggregate skeleton used in the mixture (Stone Mastic Asphalt (SMA) vs. Asphalt Concrete (AC)). Obtained Bending Beam Creep test results were compared with the BBR bitumen test. Regression analysis confirmed that performing solely bitumen tests is insufficient for comprehensive low-temperature performance analysis. PMID- 29320444 TI - Preliminary Analyses Showed Short-Term Mental Health Improvements after a Single Day Manager Training. AB - Psychosocial working conditions attract more and more attention when it comes to mental health in the workplace. Trying to support managers to deal with their own as well as their employees' psychological risk factors, we conducted a specific manager training. Within this investigation, we wanted to learn about the training's effects and acceptance. A single-day manager training was provided in a large industrial company in Germany. The participants were asked to fill out questionnaires regarding their own physical and mental health condition as well as their working situation. Questionnaires were distributed at baseline, 3-month, and 12-month follow-up. At this point of time the investigation is still ongoing. The current article focuses on short-term preliminary effects. Analyses only included participants that already completed baseline and three months follow-up. Preliminary results from three-month follow-up survey (n = 33, nmale = 30, Mage = 47.5) indicated positive changes in the manager's mental health condition measured by the Patient Health Questionnaire for depression (PHQ-9: Mt1 = 3.82, Mt2 = 3.15). Training managers about common mental disorders and risk factors at the workplace within a single-day workshop seems to promote positive effects on their own mental health. Especially working with the managers on their own early stress symptoms might have been an important element. PMID- 29320445 TI - Chlorophyll-Inspired Red-Region Fluorophores: Building Block Synthesis and Studies in Aqueous Media. AB - Fluorophores that absorb and emit in the red spectral region (600-700 nm) are of great interest in photochemistry and photomedicine. Eight new target chlorins (and 19 new chlorins altogether)-analogues of chlorophyll-of different polarities have been designed and synthesized for various applications; seven of the chlorins are equipped with a bioconjugatable tether. Hydrophobic or amphiphilic chlorins in a non-polar organic solvent (toluene), polar organic solvent (DMF), and aqueous or aqueous micellar media show a sharp emission band in the red region and modest fluorescence quantum yield (Phif = 0.2-0.3). A Poisson analysis implies most micelles are empty and few contain >1 chlorin. Water-soluble chlorins each bearing three PEG (oligoethyleneglycol) groups exhibit narrow emission bands (full-width-at-half maximum <25 nm). The lifetime of the lowest singlet excited state and the corresponding yields and rate constants for depopulation pathways (fluorescence, intersystem crossing, internal conversion) are generally little affected by the PEG groups or dissolution in aqueous or organic media. A set of chlorin-avidin conjugates revealed a 2-fold increase in Phif with increased average chlorin/avidin ratio (2.3-12). In summary, the chlorins of various polarities described herein are well suited as red-emitting fluorophores for applications in aqueous or organic media. PMID- 29320446 TI - Physical Activity, Physical Fitness, Body Composition, and Nutrition Are Associated with Bone Status in University Students. AB - Understanding the modifiable factors that improve and maximize peak bone mass at an early age is necessary to design more effective intervention programs to prevent osteoporosis. To identify these modifiable factors, we analyzed the relationship of physical activity (PA), physical fitness, body composition, and dietary intake with bone stiffness index (SI), measured by quantitative ultrasonometry in young university students (18-21 years). Moderate-to-vigorous PA (MVPA) was the strongest predictor of SI (beta = 0.184; p = 0.035). SI was most closely related with very vigorous PA in males (beta = 0.288; p = 0.040) and with the number of steps/day in females (beta = 0.319; p = 0.002). An association between thigh muscle and SI was consistent in both sexes (beta = 0.328; p < 0.001). Additionally, extension maximal force was a bone SI predictor factor in females (beta = 0.263; p = 0.016) independent of thigh muscle perimeter. Calcium intake was the only nutrition parameter that had a positive relationship with SI (R = 0.217; p = 0.022). However, it was not included as a predictor for SI in our regression models. This study identifies predictors of bone status in each sex and indicates that muscle and bone interrelate with PA and fitness in young adults. PMID- 29320447 TI - Parents' Perspectives on Family Sexuality Communication from Middle School to High School. AB - Parents' conversations with teens about sex and relationships can play a critical role in improving teenage reproductive health by reducing teens' risky sexual behavior. However, little is known about how teen-parent communication changes from early to middle adolescence and how parents can tailor their communication to address their teens' changing development and experiences during these periods. In this longitudinal qualitative study, U.S. parents (N = 23) participated in interviews when their teens were in early adolescence, then again when the teens were in middle adolescence. Participants were largely mothers and were from diverse racial/ethnic and educational backgrounds. Thematic analysis was used to assess continuity and change in parents' perceptions of teen-parent communication. Findings showed that many parents adapted their conversations with their teens about sex and relationships as teens developed. Once teens had entered high school, more parents described feeling comfortable with their conversations. However, parents also more often reported that their teens responded negatively to the communication in high school than they had in middle school. These findings may help parents to anticipate their own as well as their teens' responses to family conversations about sex at different developmental time points and to strategize how to effectively talk with their teens about sex and relationships to improve their teens' overall reproductive health. PMID- 29320449 TI - Changing Trends in Nutritional Behavior among University Students in Greece, between 2006 and 2016. AB - The objective of the present survey was to study the dietary behavior of university students residing away from the family home. In this context, we (a) compared their dietary habits in two time periods, namely 2006 and 2016; and (b) explored the possible impact of gender on the behavioral changes in nutritional choices. A total of four hundred and five university students (2006, n = 242; 2016, n = 163) participated in the study. Dietary assessment was carried out using a qualitative Food Frequency Questionnaire, while data about demographic and lifestyle factors were also collected. Students' dietary habits have been modified in a generally desirable direction, as reflected, e.g., in the elevated consumption of several plant-based foods. Gender was also significantly associated with Body Mass Index (BMI) and changes in dietary attitudes. Possible reasons for the transition towards healthier and more balanced dietary habits could involve the budgetary constraints facing Greece in the last decade, as well as increasing nutritional awareness and other socio-cultural factors characterizing this target group. A deeper understanding of these relations would be crucial to foster nutritional education and further enhance the effectiveness of health promotion campaigns. PMID- 29320450 TI - Nitrogen Nutrition of Fruit Trees to Reconcile Productivity and Environmental Concerns. AB - Although perennial fruit crops represent 1% of global agricultural land, they are of a great economic importance in world trade and in the economy of many regions. The perennial woody nature of fruit trees, their physiological stages of growth, the root distribution pattern, and the presence of herbaceous vegetation in alleys make orchard systems efficient in the use and recycling of nitrogen (N). The present paper intends to review the existing literature on N nutrition of young and mature deciduous and evergreen fruit trees with special emphasis to temperate and Mediterranean climates. There are two major sources of N contributing to vegetative tree growth and reproduction: root N uptake and internal N cycling. Optimisation of the use of external and internal N sources is important for a sustainable fruit production, as N use efficiency by young and mature fruit trees is generally lower than 55% and losses of fertilizer N may occur with the consequent economic and environmental concern. Organic alternatives to mineral N fertilizer like the application of manure, compost, mulching, and cover crops are scarcely used in perennial fruit trees, in spite of the fact that society's expectations call for more sustainable production techniques and the demand for organic fruits is increasing. PMID- 29320452 TI - Structural and Evolutionary Relationships in the Giant Sex Chromosomes of Three Microtus Species. AB - The genus Microtus has high karyotypic diversity. The existence of notable differences in the length of its sex chromosomes contributes to this variation. Variations in size are attributed to the enlargement of their heterochromatin content, which is of such magnitude in some species that they are referred to as "giant sex chromosomes". Here, we perform an intra- and interspecific analysis of the molecular composition of the heterochromatic blocks in three species with giant sex chromosomes (Microtus chrotorrhinus, M. cabrerae and M. agrestis). Our results show that the heterochromatic content is very similar in both the X and Y chromosomes of M. chrotorrhinus, and that their molecular composition is more closely related to the heterochromatic blocks of M. agrestis than to the sex heterochromatin of M. cabrerae; however, species-specific differences do clearly exist. Interestingly, the euchromatic regions of the X chromosome of all three of these species share a homologous region composed of heterochromatic-related sequences. Our results therefore reinforce the idea that certain similarities in the original organization of these X chromosomes could have facilitated their later enlargement. PMID- 29320453 TI - Radar HRRP Target Recognition Based on Stacked Autoencoder and Extreme Learning Machine. AB - A novel radar high-resolution range profile (HRRP) target recognition method based on a stacked autoencoder (SAE) and extreme learning machine (ELM) is presented in this paper. As a key component of deep structure, the SAE does not only learn features by making use of data, it also obtains feature expressions at different levels of data. However, with the deep structure, it is hard to achieve good generalization performance with a fast learning speed. ELM, as a new learning algorithm for single hidden layer feedforward neural networks (SLFNs), has attracted great interest from various fields for its fast learning speed and good generalization performance. However, ELM needs more hidden nodes than conventional tuning-based learning algorithms due to the random set of input weights and hidden biases. In addition, the existing ELM methods cannot utilize the class information of targets well. To solve this problem, a regularized ELM method based on the class information of the target is proposed. In this paper, SAE and the regularized ELM are combined to make full use of their advantages and make up for each of their shortcomings. The effectiveness of the proposed method is demonstrated by experiments with measured radar HRRP data. The experimental results show that the proposed method can achieve good performance in the two aspects of real-time and accuracy, especially when only a few training samples are available. PMID- 29320454 TI - Combined Layer/Particle Approaches in Surface Molecular Imprinting of Proteins: Signal Enhancement and Competition. AB - Herein we report novel approaches to the molecular imprinting of proteins utilizing templates sizing around 10 nm and some 100 nm. The first step comprised synthesizing nanoparticles of molecularly imprinted polymers (MIP) towards bovine serum albumin (BSA) and characterizing them according to size and binding capacity. In a second step, they were utilized as templates. Quartz crystal microbalances (QCM) coated with MIP thin films based on BSA MIP nanoparticles lead to a two-fold increase in sensor responses, compared with the case of directly using the protein as the template. This also established that individual BSA molecules exhibit different "epitopes" for molecular imprinting on their outer surfaces. In light of this knowledge, a possible MIP-based biomimetic assay format was tested by exposing QCM coated with BSA MIP thin films to mixtures of BSA and imprinted and non-imprinted polymer (NIP) nanoparticles. At high protein concentrations (1000 ppm) measurements revealed aggregation behavior, i.e., BSA binding MIP NP onto the MIP surface. This increased sensor responses by more than 30% during proof of concept measurements. At lower a BSA concentration (500 ppm), thin films and particles revealed competitive behavior. PMID- 29320451 TI - The Pathogenesis of Staphylococcus aureus Eye Infections. AB - Staphylococcus aureus is a major pathogen of the eye able to infect the tear duct, eyelid, conjunctiva, cornea, anterior and posterior chambers, and the vitreous chamber. Of these infections, those involving the cornea (keratitis) or the inner chambers of the eye (endophthalmitis) are the most threatening because of their potential to cause a loss in visual acuity or even blindness. Each of these ocular sites is protected by the constitutive expression of a variety of antimicrobial factors and these defenses are augmented by a protective host response to the organism. Such infections often involve a predisposing factor that weakens the defenses, such as the use of contact lenses prior to the development of bacterial keratitis or, for endophthalmitis, the trauma caused by cataract surgery or intravitreal injection. The structural carbohydrates of the bacterial surface induce an inflammatory response able to reduce the bacterial load, but contribute to the tissue damage. A variety of bacterial secreted proteins including alpha-toxin, beta-toxin, gamma-toxin, Panton-Valentine leukocidin and other two-component leukocidins mediate tissue damage and contribute to the induction of the inflammatory response. Quantitative animal models of keratitis and endophthalmitis have provided insights into the S. aureus virulence and host factors active in limiting such infections. PMID- 29320455 TI - Magnetization Reversal Modes in Short Nanotubes with Chiral Vortex Domain Walls. AB - Micromagnetic simulations of magnetization reversal were performed for magnetic nanotubes of a finite length, L, equal to 1 and 2 MUm, 50 and 100 nm radii, R, and uniaxial anisotropy with "easy axis" parallel to the tube length. I.e., we considered relatively short nanotubes with the aspect ratio L/R in the range 10 40. The non-uniform curling magnetization states on both ends of the nanotubes can be treated as vortex domain walls (DW). The domain wall length, Lc, depends on the tube geometric parameters and the anisotropy constant Ku, and determines the magnetization reversal mode, as well as the switching field value. For nanotubes with relative small values of Lc (Lc/L < 0.2) the magnetization reversal process is characterized by flipping of the magnetization in the middle uniform state. Whereas, for relative large values of Lc, in the reverse magnetic field, coupling of two vortex domain walls with opposite magnetization rotation directions results in the formation of a specific narrow Neel type DW in the middle of the nanotube. The nanotube magnetization suddenly aligns to the applied field at the switching field, collapsing the central DW. PMID- 29320456 TI - Preparative Purification of Polyphenols from Aronia melanocarpa (Chokeberry) with Cellular Antioxidant and Antiproliferative Activity. AB - The aim of this study was the purification process of polyphenols from Aronia melanocarpa (chokeberry), and the purification parameters were optimised by adsorption and desorption tests. By comparing adsorption and desorption ability of polyphenols from chokeberry on six kinds of macroporous resin, XAD-7 resin was selected. Experiments prove that the best purification parameters of static adsorption and desorption were sample pH = 4.0 with 4 h of adsorption; and desorption solvent is 95% ethanol (pH = 7.0) with 2 h of desorption. The best dynamic parameters were 9.3 bed volume (BV) of sample loading amount at a feeding flow rate of 2 BV/h, and washing the column with 5.8 BV of water, followed by subsequent elution with an eluent volume of 5.0 mL at an elution flow rate of 2 BV/h. Next the antioxidant and antiproliferative activity of polyphenols from chokeberry, blueberries, haskap berries was studied on HepG2 human liver cancer cells. The results show that polyphenol from chokeberry has a strong antioxidant effect. Taking into account the content of polyphenols in fruit, polyphenols from chokeberry represent a very valuable natural antioxidant source with antiproliferative products. PMID- 29320457 TI - Evaluating the Joint Toxicity of Two Benzophenone-Type UV Filters on the Green Alga Chlamydomonas reinhardtii with Response Surface Methodology. AB - The widespread occurrence of benzophenone-type ultraviolet (UV) filter has raised the public concerns over the ecotoxicological effects of these chemicals. The present study assessed the joint toxicity of two representative benzophenones, benzophenone-1 (BP-1) and benzophenone-3 (BP-3), on the green alga Chlamydomonas reinhardtii using response surface methodologies (RSM). Specific growth rate and photosynthetic pigments were used as endpoints to evaluate the toxic effects. Generally, exposure to the combined BP-1 and BP-3 negatively affected cell growth and pigments production, with higher inhibitions at higher exposure concentrations. The simultaneous reduction in growth rate and pigments contents indicated that BP-1 and BP-3 regulated the growth of the tested alga by affecting the photosynthesis process. Results also showed that second order polynomial regression models fitted well with experimental results for all endpoints. The obtained regression models further indicated that the effects of the combination stemmed significantly from the linear concentration of BP-1 and BP-3. The overall results demonstrated that RSM could be a useful tool in ecotoxicological studies. PMID- 29320458 TI - Community Characteristics and Leaf Stoichiometric Traits of Desert Ecosystems Regulated by Precipitation and Soil in an Arid Area of China. AB - Precipitation is a key environmental factor determining plant community structure and function. Knowledge of how community characteristics and leaf stoichiometric traits respond to variation in precipitation is crucial for assessing the effects of global changes on terrestrial ecosystems. In this study, we measured community characteristics, leaf stoichiometric traits, and soil properties along a precipitation gradient (35-209 mm) in a desert ecosystem of Northwest China to explore the drivers of these factors. With increasing precipitation, species richness, aboveground biomass, community coverage, foliage projective cover (FPC), and leaf area index (LAI) all significantly increased, while community height decreased. The hyperarid desert plants were characterized by lower leaf carbon (C) and nitrogen/phosphorus (N/P) levels, and stable N and P, and these parameters did not change significantly with precipitation. The growth of desert plants was limited more by N than P. Soil properties, rather than precipitation, were the main drivers of desert plant leaf stoichiometric traits, whereas precipitation made the biggest contribution to vegetation structure and function. These results test the importance of precipitation in regulating plant community structure and composition together with soil properties, and provide further insights into the adaptive strategy of communities at regional scale in response to global climate change. PMID- 29320460 TI - Fatigue Reliability Assessment for Orthotropic Steel Decks Based on Long-Term Strain Monitoring. AB - A time-dependent fatigue reliability assessment approach is proposed for welded details of orthotropic steel decks (OSDs) using long-term strain monitoring data. The fatigue reliability limit function of the welded details is established based on the Eurocode specifications. Depending on the distribution characteristics of the measured daily equivalent stress range, either the lognormal distribution or Gaussian mixture model (GMM) is selected to quantify its uncertainty. Subsequently, the fatigue reliability can be calculated using either an explicit formula or the Monte Carlo method. This proposed approach is applied for the fatigue reliability evaluation of two rib-to-deck and two rib-to-rib welded fatigue details of an in-service suspension bridge. The results show that the reliability indices decrease significantly with bridge's service life. Except for a rib-to-deck detail, all other three welded details cannot meet the target fatigue reliability during this bridge's 100-year service life. The proposed approach can help bridge owners and operators make informed decisions regarding maintenance and repair of potential fatigue cracks. PMID- 29320459 TI - The Landscape of Small Non-Coding RNAs in Triple-Negative Breast Cancer. AB - Triple-negative breast cancer (TNBC) is an operational term for breast cancers lacking targetable estrogen receptor expression and HER2 amplifications. TNBC is, therefore, inherently heterogeneous, and is associated with worse prognosis, greater rates of metastasis, and earlier onset. TNBC displays mutational and transcriptional diversity, and distinct mRNA transcriptional subtypes exhibiting unique biology. High-throughput sequencing has extended cancer research far beyond protein coding regions that include non-coding small RNAs, such as miRNA, isomiR, tRNA, snoRNAs, snRNA, yRNA, 7SL, and 7SK. In this study, we performed small RNA profiling of 26 TNBC cell lines, and compared the abundance of non coding RNAs among the transcriptional subtypes of triple negative breast cancer. We also examined their co-expression pattern with corresponding mRNAs. This study provides a detailed description of small RNA expression in triple-negative breast cancer cell lines that can aid in the development of future biomarker and novel targeted therapies. PMID- 29320461 TI - Factors Associated with Binge Eating Behavior among Malaysian Adolescents. AB - Although there are numerous studies on binge eating behavior in the Western countries, studies on this behavior in Malaysia are still limited. Therefore, this cross-sectional study aimed to determine the risk factors associated with binge eating behavior among adolescents in Malaysia. The study included 356 adolescents (42.7% males and 57.3% females), aged 13 to 16 years. They completed a self-administered questionnaire on demographic and socioeconomic backgrounds, frequency of family meals, family meal environments, family cohesion, perception of body size, self-esteem, depressive symptoms, perfectionistic self presentation, and binge eating behavior. Furthermore, their weight, height, and waist circumference were measured. It was found that 14.0% of the participants engaged in binge eating behavior (15.2% in females and 12.5% in males). Additionally, it was identified that high levels of depressive symptoms, high levels of body dissatisfaction, poor family cohesion, and low self-esteem were significantly contributed to binge eating behavior after controlling for sex (adjusted R2 = 0.165, F = 15.056, p < 0.001). The findings may suggest that improving the relationships between family members, along with eliminating adolescents' negative emotions could help in the prevention of binge eating behavior among adolescents. The identified modifiable risk factors should be incorporated into binge eating preventive programs to increase the effectiveness of the programs. PMID- 29320463 TI - A Continuous Identity Authentication Scheme Based on Physiological and Behavioral Characteristics. AB - Wearable devices have flourished over the past ten years providing great advantages to people and, recently, they have also been used for identity authentication. Most of the authentication methods adopt a one-time authentication manner which cannot provide continuous certification. To address this issue, we present a two-step authentication method based on an own-built fingertip sensor device which can capture motion data (e.g., acceleration and angular velocity) and physiological data (e.g., a photoplethysmography (PPG) signal) simultaneously. When the device is worn on the user's fingertip, it will automatically recognize whether the wearer is a legitimate user or not. More specifically, multisensor data is collected and analyzed to extract representative and intensive features. Then, human activity recognition is applied as the first step to enhance the practicability of the authentication system. After correctly discriminating the motion state, a one-class machine learning algorithm is applied for identity authentication as the second step. When a user wears the device, the authentication process is carried on automatically at set intervals. Analyses were conducted using data from 40 individuals across various operational scenarios. Extensive experiments were executed to examine the effectiveness of the proposed approach, which achieved an average accuracy rate of 98.5% and an F1-score of 86.67%. Our results suggest that the proposed scheme provides a feasible and practical solution for authentication. PMID- 29320462 TI - Unsaturated Fatty Acids Affect Quorum Sensing Communication System and Inhibit Motility and Biofilm Formation of Acinetobacter baumannii. AB - The increasing threat of Acinetobacter baumannii as a nosocomial pathogen is mainly due to the occurrence of multidrug-resistant strains that are associated with the real problem of its eradication from hospital wards. The particular ability of this pathogen to form biofilms contributes to its persistence, increases antibiotic resistance, and promotes persistent/device-related infections. We previously demonstrated that virstatin, which is a small organic compound known to decrease virulence of Vibrio cholera via an inhibition of T4 pili expression, displayed very promising activity to prevent A. baumannii biofilm development. Here, we examined the antibiofilm activity of mono unsaturated chain fatty acids, palmitoleic (PoA), and myristoleic (MoA) acids, presenting similar action on V. cholerae virulence. We demonstrated that PoA and MoA (at 0.02 mg/mL) were able to decrease A. baumannii ATCC 17978 biofilm formation up to 38% and 24%, respectively, presented a biofilm dispersing effect and drastically reduced motility. We highlighted that these fatty acids decreased the expression of the regulator abaR from the LuxIR-type quorum sensing (QS) communication system AbaIR and consequently reduced the N-acyl-homoserine lactone production (AHL). This effect can be countered by addition of exogenous AHLs. Besides, fatty acids may have additional non-targeted effects, independent from QS. Atomic force microscopy experiments probed indeed that PoA and MoA could also act on the initial adhesion process in modifying the material interface properties. Evaluation of fatty acids effect on 22 clinical isolates showed a strain-dependent antibiofilm activity, which was not correlated to hydrophobicity or pellicle formation ability of the tested strains, and suggested a real diversity in cell-to-cell communication systems involved in A. baumannii biofilm formation. PMID- 29320464 TI - STI Knowledge in Berlin Adolescents. AB - Sexually transmitted infections (STIs) pose a significant threat to individual and public health. They disproportionately affect adolescents and young adults. In a cross-sectional study, we assessed self-rated and factual STI knowledge in a sample of 9th graders in 13 secondary schools in Berlin, Germany. Differences by age, gender, migrant background, and school type were quantified using bivariate and multivariable analyses. A total of 1177 students in 61 classes participated. The mean age was 14.6 (SD = 0.7), 47.5% were female, and 52.9% had at least one immigrant parent. Knowledge of human immunodeficiency virus (HIV) was widespread, but other STIs were less known. For example, 46.2% had never heard of chlamydia, 10.8% knew of the HPV vaccination, and only 2.2% were aware that no cure exists for HPV infection. While boys were more likely to describe their knowledge as good, there was no general gender superiority in factual knowledge. Children of immigrants and students in the least academic schools had lower knowledge overall. Our results show that despite their particular risk to contract an STI, adolescents suffer from suboptimal levels of knowledge on STIs beyond HIV. Urgent efforts needed to improve adolescent STI knowledge in order to improve the uptake of primary and secondary prevention. PMID- 29320466 TI - An Efficient Wireless Sensor Network for Industrial Monitoring and Control. AB - This paper presents the design of a wireless sensor network particularly designed for remote monitoring and control of industrial parameters. The article describes the network components, protocol and sensor deployment, aimed to accomplish industrial constraint and to assure reliability and low power consumption. A particular case of study is presented. The system consists of a base station, gas sensing nodes, a tree-based routing scheme for the wireless sensor nodes and a real-time monitoring application that operates from a remote computer and a mobile phone. The system assures that the industrial safety quality and the measurement and monitoring system achieves an efficient industrial monitoring operations. The robustness of the developed system and the security in the communications have been guaranteed both in hardware and software level. The system is flexible and can be adapted to different environments. The testing of the system confirms the feasibility of the proposed implementation and validates the functional requirements of the developed devices, the networking solution and the power consumption management. PMID- 29320467 TI - Accurate Natural Trail Detection Using a Combination of a Deep Neural Network and Dynamic Programming. AB - This paper presents a vision sensor-based solution to the challenging problem of detecting and following trails in highly unstructured natural environments like forests, rural areas and mountains, using a combination of a deep neural network and dynamic programming. The deep neural network (DNN) concept has recently emerged as a very effective tool for processing vision sensor signals. A patch based DNN is trained with supervised data to classify fixed-size image patches into "trail" and "non-trail" categories, and reshaped to a fully convolutional architecture to produce trail segmentation map for arbitrary-sized input images. As trail and non-trail patches do not exhibit clearly defined shapes or forms, the patch-based classifier is prone to misclassification, and produces sub optimal trail segmentation maps. Dynamic programming is introduced to find an optimal trail on the sub-optimal DNN output map. Experimental results showing accurate trail detection for real-world trail datasets captured with a head mounted vision system are presented. PMID- 29320465 TI - CRP Genotypes Predict Increased Risk to Co-Present with Low Vitamin D and Elevated CRP in a Group of Healthy Black South African Women. AB - Low 25-hydroxyvitamin D (25(OH)D) and elevated C-reactive protein (CRP) concentrations are independently associated with adverse health outcomes, including cardiovascular disease (CVD). Although an inverse association between these factors has been described, the underlying mechanisms remain unknown. We postulate that environment-gene interactions, through which 25(OH)D interacts with single nucleotide polymorphisms (SNPs) within the CRP gene, modulate CRP; that certain CRP genotypes predispose individuals to a co-phenotype of low 25(OH)D and elevated CRP concentrations; and that this co-phenotype is associated with higher CVD risk. Twelve CRP SNPs were genotyped, and both 25(OH)D and CRP were quantified, in 505 black South African women. Alarmingly, 66% and 60% of the women presented with deficient/insufficient 25(OH)D and elevated CRP concentrations, respectively. CRP concentrations were higher in individuals with lower 25(OH)D concentrations. However, no 25(OH)D-CRP genotype interactions were evident. Several genotypes were associated with an altered risk of presenting with the co-phenotype, indicating a genetic predisposition. Women presenting with this co-phenotype had higher blood pressure and increased anthropometric measures, which may predispose them to develop CVD. We recommend increasing vitamin D fortification and supplementation efforts to reduce inflammation among black women with vitamin D deficiency, thereby possibly curbing diseases contingent on the co-phenotype described here. PMID- 29320468 TI - Clinical Remission of Cutaneous Squamous Cell Carcinoma of the Auricle with Cetuximab and Nivolumab. AB - Cutaneous squamous cell carcinomas (SCC) affecting the regions of the head and neck can be challenging to resect surgically and refractory to chemotherapy or radiation therapy. Consequently; the treatment of squamous cell carcinomas of the skin is a focus of current research. One such advancement is immunotherapy. Herein we describe clinical remission of invasive, poorly differentiated squamous cell carcinoma of the pre-auricular region with external auditory canal involvement using cetuximab, an epidermal growth factor receptor (EGFR) antibody; and nivolumab, a programmed death receptor-1 (PD-1) antibody. Such durable and comprehensive disease resolution demonstrates the therapeutic potential of cetuximab and nivolumab in surgically challenging, treatment-resistant cutaneous squamous cell carcinoma. PMID- 29320469 TI - Evaluation of the Simultaneous Production of Xylitol and Ethanol from Sisal Fiber. AB - Recent years have seen an increase in the use of lignocellulosic materials in the development of bioproducts. Because sisal fiber is a low cost raw material and is readily available, this work aimed to evaluate its hemicellulose fraction for the simultaneous production of xylitol and ethanol. The sisal fiber presented a higher hemicellulose content than other frequently-employed biomasses, such as sugarcane bagasse. A pretreatment with dilute acid and low temperatures was conducted in order to obtain the hemicellulose fraction. The highest xylose contents (0.132 g.g-1 of sisal fiber) were obtained at 120 degrees C with 2.5% (v/v) of sulfuric acid. The yeast Candida tropicalis CCT 1516 was used in the fermentation. In the sisal fiber hemicellulose hydrolysate, the maximum production of xylitol (0.32 g.g-1) and of ethanol (0.27 g.g-1) was achieved in 60 h. Thus, sisal fiber presents as a potential biomass for the production of ethanol and xylitol, creating value with the use of hemicellulosic liquor without detoxification and without the additional steps of alkaline pretreatment. PMID- 29320470 TI - Unexpected Ground-State Structure and Mechanical Properties of Ir2Zr Intermetallic Compound. AB - Using an unbiased structure searching method, a new orthorhombic Cmmm structure consisting of ZrIr12 polyhedron building blocks is predicted to be the thermodynamic ground-state of stoichiometric intermetallic Ir2Zr in Ir-Zr systems. The formation enthalpy of the Cmmm structure is considerably lower than that of the previously synthesized Cu2Mg-type phase, by ~107 meV/atom, as demonstrated by the calculation of formation enthalpy. Meanwhile, the phonon dispersion calculations further confirmed the dynamical stability of Cmmm phase under ambient conditions. The mechanical properties, including elastic stability, rigidity, and incompressibility, as well as the elastic anisotropy of Cmmm-Ir2Zr intermetallic, have thus been fully determined. It is found that the predicted Cmmm phase exhibits nearly elastic isotropic and great resistance to shear deformations within the (100) crystal plane. Evidence of atomic bonding related to the structural stability for Ir2Zr were manifested by calculations of the electronic structures. PMID- 29320471 TI - Achieving High Strength and Good Ductility in As-Extruded Mg-Gd-Y-Zn Alloys by Ce Micro-Alloying. AB - In this study, the effect of Ce additions on microstructure evolution of Mg-7Gd 3.5Y-0.3Zn (wt %) alloys during the casting, homogenization, aging and extrusion processing are investigated, and novel mechanical properties are also obtained. The results show that Ce addition promotes the formation of long period stacking ordered (LPSO) phases in the as-cast Mg-Gd-Y-Zn-Ce alloys. A high content of Ce addition would reduce the maximum solubility of Gd and Y in the Mg matrix, which leads to the higher density of Mg12Ce phases in the as-homogenized alloys. The major second phases observed in the as-extruded alloys are micron-sized bulk LPSO phases, nano-sized stripe LPSO phases, and broken Mg12Ce and Mg5RE phases. Recrystallized grain size of the as-extruded 0.2Ce, 0.5Ce and 1.0Ce alloys can be refined to ~4.3 MUm, ~1.0 MUm and ~8.4 MUm, respectively, which is caused by the synthesized effect of both micron phases and nano phases. The strength and ductility of as-extruded samples firstly increase and then decrease with increasing Ce content. As-extruded 0.5Ce alloy exhibits optimal mechanical properties, with ultimate strength of 365 MPa and ductility of ~15% simultaneously. PMID- 29320472 TI - Subjective Complaints of Ocular Dryness and Xerostomia Among the Non-Sjogren Adult Population of Lublin Region, Poland. AB - BACKGROUND Eye and mouth dryness are the most common symptoms reported during ophthalmological and dental examinations, and their frequency increases with age. In connection with population aging and the huge variety of factors and conditions that can induce this condition, it is becoming a serious and growing problem. The purpose of the present study was to determine whether ocular dryness and concomitant xerostomia is associated with particular systemic diseases. MATERIAL AND METHODS We enrolled 642 non-Sjogren patients referred for examination to the ophthalmology or dental clinic of Lublin region, Poland. The research was conducted using a standardized interview: The Interview and Examination Questionnaire. All patients responded to the survey questions, which concerned systemic diseases, lifestyle, with special emphasis on computer work, spending time in polluted and air-conditioned rooms, and subsequent questions about the subjective symptoms of ocular and mouth dryness. RESULTS There were 424 patients who presented signs and symptoms of both ocular and mouth dryness. Our study showed a statistically significant association between this condition and the age and sex of the patients and systemic diseases such as hypertension (p=0.0000), cardiovascular disease (p=0.057), and stress (p=0.036), and time spent at the computer (p=0.00015). CONCLUSIONS Ocular dryness and concomitant xerostomia may occur in apparently healthy individuals, but is more frequent in patients with systemic disorders. The lack of dry eye and dry mouth symptoms does not exclude insufficient tearing and salivation; thus, the disorders are usually underestimated. Our study indicates that ocular and mouth dryness are the most common conditions seen in out-patients, due to increased use of medications, computers, and air conditioning. PMID- 29320473 TI - Systems of mechanized and reactive droplets powered by multi-responsive surfactants. AB - Although 'active' surfactants, which are responsive to individual external stimuli such as temperature, electric or magnetic fields, light, redox processes or chemical agents, are well known, it would be interesting to combine several of these properties within one surfactant species. Such multi-responsive surfactants could provide ways of manipulating individual droplets and possibly assembling them into larger systems of dynamic reactors. Here we describe surfactants based on functionalized nanoparticle dimers that combine all of these and several other characteristics. These surfactants and therefore the droplets that they cover are simultaneously addressable by magnetic, optical and electric fields. As a result, the surfactant-covered droplets can be assembled into various hierarchical structures, including dynamic ones, in which light powers the rapid rotation of the droplets. Such rotating droplets can transfer mechanical torques to their non nearest neighbours, thus acting like systems of mechanical gears. Furthermore, droplets of different types can be merged by applying electric fields and, owing to interfacial jamming, can form complex, non-spherical, 'patchy' structures with different surface regions covered with different surfactants. In systems of droplets that carry different chemicals, combinations of multiple stimuli can be used to control the orientations of the droplets, inter-droplet transport, mixing of contents and, ultimately, sequences of chemical reactions. Overall, the multi responsive active surfactants that we describe provide an unprecedented level of flexibility with which liquid droplets can be manipulated, assembled and reacted. PMID- 29320475 TI - Warfare and wildlife declines in Africa's protected areas. AB - Large-mammal populations are ecological linchpins, and their worldwide decline and extinction disrupts many ecosystem functions and services. Reversal of this trend will require an understanding of the determinants of population decline, to enable more accurate predictions of when and where collapses will occur and to guide the development of effective conservation and restoration policies. Many correlates of large-mammal declines are known, including low reproductive rates, overhunting, and habitat destruction. However, persistent uncertainty about the effects of one widespread factor-armed conflict-complicates conservation-planning and priority-setting efforts. Case studies have revealed that conflict can have either positive or negative local impacts on wildlife, but the direction and magnitude of its net effect over large spatiotemporal scales have not previously been quantified. Here we show that conflict frequency predicts the occurrence and severity of population declines among wild large herbivores in African protected areas from 1946 to 2010. Conflict was extensive during this period, occurring in 71% of protected areas, and conflict frequency was the single most important predictor of wildlife population trends among the variables that we analysed. Population trajectories were stable in peacetime, fell significantly below replacement with only slight increases in conflict frequency (one conflict-year per two-to-five decades), and were almost invariably negative in high-conflict sites, both in the full 65-year dataset and in an analysis restricted to recent decades (1989-2010). Yet total population collapse was infrequent, indicating that war-torn faunas can often recover. Human population density was also correlated (positively) with wildlife population trajectories in recent years; however, we found no significant effect, in either timespan, of species body mass, protected-area size, conflict intensity (human fatalities), drought frequency, presence of extractable mineral resources, or various metrics of development and governance. Our results suggest that sustained conservation activity in conflict zones-and rapid interventions following ceasefires-may help to save many at-risk populations and species. PMID- 29320474 TI - High response rate to PD-1 blockade in desmoplastic melanomas. AB - Desmoplastic melanoma is a rare subtype of melanoma characterized by dense fibrous stroma, resistance to chemotherapy and a lack of actionable driver mutations, and is highly associated with ultraviolet light-induced DNA damage. We analysed sixty patients with advanced desmoplastic melanoma who had been treated with antibodies to block programmed cell death 1 (PD-1) or PD-1 ligand (PD-L1). Objective tumour responses were observed in forty-two of the sixty patients (70%; 95% confidence interval 57-81%), including nineteen patients (32%) with a complete response. Whole-exome sequencing revealed a high mutational load and frequent NF1 mutations (fourteen out of seventeen cases) in these tumours. Immunohistochemistry analysis from nineteen desmoplastic melanomas and thirteen non-desmoplastic melanomas revealed a higher percentage of PD-L1-positive cells in the tumour parenchyma in desmoplastic melanomas (P = 0.04); these cells were highly associated with increased CD8 density and PD-L1 expression in the tumour invasive margin. Therefore, patients with advanced desmoplastic melanoma derive substantial clinical benefit from PD-1 or PD-L1 immune checkpoint blockade therapy, even though desmoplastic melanoma is defined by its dense desmoplastic fibrous stroma. The benefit is likely to result from the high mutational burden and a frequent pre-existing adaptive immune response limited by PD-L1 expression. PMID- 29320476 TI - Erratum: Runx3 programs CD8+ T cell residency in non-lymphoid tissues and tumours. AB - This corrects the article DOI: 10.1038/nature24993. PMID- 29320477 TI - A global map of travel time to cities to assess inequalities in accessibility in 2015. AB - The economic and man-made resources that sustain human wellbeing are not distributed evenly across the world, but are instead heavily concentrated in cities. Poor access to opportunities and services offered by urban centres (a function of distance, transport infrastructure, and the spatial distribution of cities) is a major barrier to improved livelihoods and overall development. Advancing accessibility worldwide underpins the equity agenda of 'leaving no one behind' established by the Sustainable Development Goals of the United Nations. This has renewed international efforts to accurately measure accessibility and generate a metric that can inform the design and implementation of development policies. The only previous attempt to reliably map accessibility worldwide, which was published nearly a decade ago, predated the baseline for the Sustainable Development Goals and excluded the recent expansion in infrastructure networks, particularly in lower-resource settings. In parallel, new data sources provided by Open Street Map and Google now capture transportation networks with unprecedented detail and precision. Here we develop and validate a map that quantifies travel time to cities for 2015 at a spatial resolution of approximately one by one kilometre by integrating ten global-scale surfaces that characterize factors affecting human movement rates and 13,840 high-density urban centres within an established geospatial-modelling framework. Our results highlight disparities in accessibility relative to wealth as 50.9% of individuals living in low-income settings (concentrated in sub-Saharan Africa) reside within an hour of a city compared to 90.7% of individuals in high-income settings. By further triangulating this map against socioeconomic datasets, we demonstrate how access to urban centres stratifies the economic, educational, and health status of humanity. PMID- 29320478 TI - An extracellular network of Arabidopsis leucine-rich repeat receptor kinases. AB - The cells of multicellular organisms receive extracellular signals using surface receptors. The extracellular domains (ECDs) of cell surface receptors function as interaction platforms, and as regulatory modules of receptor activation. Understanding how interactions between ECDs produce signal-competent receptor complexes is challenging because of their low biochemical tractability. In plants, the discovery of ECD interactions is complicated by the massive expansion of receptor families, which creates tremendous potential for changeover in receptor interactions. The largest of these families in Arabidopsis thaliana consists of 225 evolutionarily related leucine-rich repeat receptor kinases (LRR RKs), which function in the sensing of microorganisms, cell expansion, stomata development and stem-cell maintenance. Although the principles that govern LRR-RK signalling activation are emerging, the systems-level organization of this family of proteins is unknown. Here, to address this, we investigated 40,000 potential ECD interactions using a sensitized high-throughput interaction assay, and produced an LRR-based cell surface interaction network (CSILRR) that consists of 567 interactions. To demonstrate the power of CSILRR for detecting biologically relevant interactions, we predicted and validated the functions of uncharacterized LRR-RKs in plant growth and immunity. In addition, we show that CSILRR operates as a unified regulatory network in which the LRR-RKs most crucial for its overall structure are required to prevent the aberrant signalling of receptors that are several network-steps away. Thus, plants have evolved LRR-RK networks to process extracellular signals into carefully balanced responses. PMID- 29320479 TI - Paternal chromosome loss and metabolic crisis contribute to hybrid inviability in Xenopus. AB - Hybridization of eggs and sperm from closely related species can give rise to genetic diversity, or can lead to embryo inviability owing to incompatibility. Although central to evolution, the cellular and molecular mechanisms underlying post-zygotic barriers that drive reproductive isolation and speciation remain largely unknown. Species of the African clawed frog Xenopus provide an ideal system to study hybridization and genome evolution. Xenopus laevis is an allotetraploid with 36 chromosomes that arose through interspecific hybridization of diploid progenitors, whereas Xenopus tropicalis is a diploid with 20 chromosomes that diverged from a common ancestor approximately 48 million years ago. Differences in genome size between the two species are accompanied by organism size differences, and size scaling of the egg and subcellular structures such as nuclei and spindles formed in egg extracts. Nevertheless, early development transcriptional programs, gene expression patterns, and protein sequences are generally conserved. Whereas the hybrid produced when X. laevis eggs are fertilized by X. tropicalis sperm is viable, the reverse hybrid dies before gastrulation. Here we apply cell biological tools and high-throughput methods to study the mechanisms underlying hybrid inviability. We reveal that two specific X. laevis chromosomes are incompatible with the X. tropicalis cytoplasm and are mis-segregated during mitosis, leading to unbalanced gene expression at the maternal to zygotic transition, followed by cell-autonomous catastrophic embryo death. These results reveal a cellular mechanism underlying hybrid incompatibility that is driven by genome evolution and contributes to the process by which biological populations become distinct species. PMID- 29320480 TI - Pharmacological activation of REV-ERBs is lethal in cancer and oncogene-induced senescence. AB - The circadian clock imposes daily rhythms in cell proliferation, metabolism, inflammation and DNA damage response. Perturbations of these processes are hallmarks of cancer and chronic circadian rhythm disruption predisposes individuals to tumour development. This raises the hypothesis that pharmacological modulation of the circadian machinery may be an effective therapeutic strategy for combating cancer. REV-ERBs, the nuclear hormone receptors REV-ERBalpha (also known as NR1D1) and REV-ERBbeta (also known as NR1D2), are essential components of the circadian clock. Here we show that two agonists of REV-ERBs-SR9009 and SR9011-are specifically lethal to cancer cells and oncogene-induced senescent cells, including melanocytic naevi, and have no effect on the viability of normal cells or tissues. The anticancer activity of SR9009 and SR9011 affects a number of oncogenic drivers (such as HRAS, BRAF, PIK3CA and others) and persists in the absence of p53 and under hypoxic conditions. The regulation of autophagy and de novo lipogenesis by SR9009 and SR9011 has a critical role in evoking an apoptotic response in malignant cells. Notably, the selective anticancer properties of these REV-ERB agonists impair glioblastoma growth in vivo and improve survival without causing overt toxicity in mice. These results indicate that pharmacological modulation of circadian regulators is an effective antitumour strategy, identifying a class of anticancer agents with a wide therapeutic window. We propose that REV-ERB agonists are inhibitors of autophagy and de novo lipogenesis, with selective activity towards malignant and benign neoplasms. PMID- 29320481 TI - Architecture of a channel-forming O-antigen polysaccharide ABC transporter. AB - O-antigens are cell surface polysaccharides of many Gram-negative pathogens that aid in escaping innate immune responses. A widespread O-antigen biosynthesis mechanism involves the synthesis of the lipid-anchored polymer on the cytosolic face of the inner membrane, followed by transport to the periplasmic side where it is ligated to the lipid A core to complete a lipopolysaccharide molecule. In this pathway, transport to the periplasm is mediated by an ATP-binding cassette (ABC) transporter, called Wzm-Wzt. Here we present the crystal structure of the Wzm-Wzt homologue from Aquifex aeolicus in an open conformation. The transporter forms a transmembrane channel that is sufficiently wide to accommodate a linear polysaccharide. Its nucleotide-binding domain and a periplasmic extension form 'gate helices' at the cytosolic and periplasmic membrane interfaces that probably serve as substrate entry and exit points. Site-directed mutagenesis of the gates impairs in vivo O-antigen secretion in the Escherichia coli prototype. Combined with a closed structure of the isolated nucleotide-binding domains, our structural and functional analyses suggest a processive O-antigen translocation mechanism, which stands in contrast to the classical alternating access mechanism of ABC transporters. PMID- 29320482 TI - Severe retinopathy of prematurity is associated with reduced cerebellar and brainstem volumes at term and neurodevelopmental deficits at 2 years. AB - BackgroundTo evaluate the association between severe retinopathy of prematurity (ROP), measures of brain morphology at term-equivalent age (TEA), and neurodevelopmental outcome.MethodsEighteen infants with severe ROP (median gestational age (GA) 25.3 (range 24.6-25.9 weeks) were included in this retrospective case-control study. Each infant was matched to two extremely preterm control infants (n=36) by GA, birth weight, sex, and brain injury. T2 weighted images were obtained on a 3 T magnetic resonance imaging (MRI) at TEA. Brain volumes were computed using an automatic segmentation method. In addition, cortical folding metrics were extracted. Neurodevelopment was formally assessed at the ages of 15 and 24 months.ResultsInfants with severe ROP had smaller cerebellar volumes (21.4+/-3.2 vs. 23.1+/-2.6 ml; P=0.04) and brainstem volumes (5.4+/-0.5 ml vs. 5.8+/-0.5 ml; P=0.01) compared with matched control infants. Furthermore, ROP patients showed a significantly lower development quotient (Griffiths Mental Development Scales) at the age of 15 months (93+/-15 vs. 102+/ 10; P=0.01) and lower fine motor scores (10+/-3 vs. 12+/-2; P=0.02) on Bayley Scales (Third Edition) at the age of 24 months.ConclusionSevere ROP was associated with smaller volumes of the cerebellum and brainstem and with poorer early neurodevelopmental outcome. Follow-up through childhood is needed to evaluate the long-term consequences of our findings. PMID- 29320483 TI - Microarray analysis in pregnancies with isolated unilateral kidney agenesis. AB - BackgroundThe objective of our study was to examine the risk for submicroscopic chromosomal aberrations among fetuses with apparently isolated solitary kidney.MethodsData acquisition was performed retrospectively by searching Israeli Ministry of Health-computerized database. All cases having chromosomal microarray analysis (CMA), referred because of an indication of isolated unilateral kidney agenesis between January 2013 and September 2016, were included. Rate of clinically significant CMA findings in these pregnancies was compared to pregnancies with normal ultrasound, based on a systematic review encompassing 9,792 cases and local data of 5,541 pregnancies undergoing CMA because of maternal request.ResultsOf the 81 pregnancies with isolated solitary kidney, 2 (2.47%) loss-of-copy number variants compatible with well-described deletion syndromes were reported (16p11.2-16p12.2 and 22q11.21 microdeletion syndromes). In addition, one variant of unknown significance was demonstrated. The relative risk for pathogenic CMA findings among pregnancies with isolated unilateral renal agenesis was not significantly different compared with the control population.ConclusionCMA analysis in pregnancies with unilateral renal agenesis might still be useful, to the same degree as it can be in the general population. PMID- 29320484 TI - Brain growth in the NICU: critical periods of tissue-specific expansion. AB - ObjectiveTo examine, using serial magnetic resonance imaging (MRI), total and tissue-specific brain growth in very-preterm (VPT) infants during the period that coincides with the early and late stages of the third trimester.MethodsStructural MRI scans were collected from two prospective cohorts of VPT infants (<=30 weeks of gestation). A total of 51 MRI scans from 18 VPT subjects were available for volumetric analysis. Brain tissue was classified into cerebrospinal fluid, cortical gray matter, myelinated and unmyelinated white matter, deep nuclear gray matter, and cerebellum. Nine infants had sufficient serial scans to allow comparison of tissue growth during the periods corresponding to the early and late stages of the third trimester.ResultsTissue-specific differences in ex utero brain growth trajectories were observed in the period corresponding to the third trimester. Most notably, there was a marked increase in cortical gray matter expansion from 34 to 40 weeks of postmenstrual age, emphasizing this critical period of brain development.ConclusionUtilizing serial MRI to document early brain development in VPT infants, this study documents regional differences in brain growth trajectories ex utero during the period corresponding to the first and second half of the third trimester, providing novel insight into the maturational vulnerability of the rapidly expanding cortical gray matter in the NICU. PMID- 29320485 TI - Non-invasive ventilation and surfactant treatment as the primary mode of respiratory support in surfactant-deficient newborn piglets. AB - BackgroundNasal continuous positive airway pressure (NCPAP) and nasal intermittent positive pressure ventilation (NIPPV), forms of non-invasive ventilation (NIV) for respiratory support, are increasingly being chosen as the initial treatment for neonates with surfactant (SF) deficiency. Our objective was to compare NCPAP with NIPPV with or without SF administration as a primary mode of ventilation.MethodsTwenty-four newborn piglets with SF-deficient lung injury produced by repetitive bronchoalveolar lavages were randomly assigned to NCPAP or NIPPV, with or without SF administration (InSurE method). We evaluated pulmonary, systemic (hemodynamic and oxygen metabolism), and cerebral effects.ResultsSF deficient piglets developed respiratory distress (FiO2:1, pH<7.2, PaCO2>70 mm Hg, PaO2<70 mm Hg, and Cdyn<0.5 ml/cmH2O/kg). Gradual improvements in pulmonary status were observed in both NIV groups, with NIPPV achieving lower lung inflammation markers and injury scores. Both SF-treated groups obtained significantly better respiratory outcomes than groups not treated with SF before NIV. All NIV-treated groups showed low brain injury scores.ConclusionIn spontaneously breathing SF-deficient newborn piglets, NIPPV is a suitable NIV strategy. SF administration in combination with NCPAP or NIPPV improves pulmonary status providing extra protection against pulmonary injury. No injury to the developing brain was observed to be associated with these NIV strategies, with or without SF therapy. PMID- 29320486 TI - Systematic characterization of maturation time of fluorescent proteins in living cells. AB - The slow maturation time of fluorescent proteins (FPs) limits the temporal accuracy of measurements of rapid processes such as gene expression dynamics and effectively reduces fluorescence signal in growing cells. We used high-precision time-lapse microscopy to characterize the maturation kinetics of 50 FPs that span the visible spectrum at two different temperatures in Escherichia coli cells. We identified fast-maturing FPs from this set that yielded the highest signal-to noise ratio and temporal resolution in individual growing cells. PMID- 29320487 TI - Multicolor quantitative confocal imaging cytometry. AB - Multicolor 3D quantitative imaging of large tissue volumes is necessary to understand tissue development and organization as well as interactions between distinct cell types in situ. However, tissue imaging remains technically challenging, particularly imaging of bone and marrow. Here, we describe a pipeline to reproducibly generate high-dimensional quantitative data from bone and bone marrow that may be extended to any tissue. We generate thick bone sections from adult mouse femurs with preserved tissue microarchitecture and demonstrate eight-color imaging using confocal microscopy without linear unmixing. We introduce XiT, an open-access software for fast and easy data curation, exploration and quantification of large imaging data sets with single cell resolution. We describe how XiT can be used to correct for potential artifacts in quantitative 3D imaging, and we use the pipeline to measure the spatial relationship between hematopoietic cells, bone matrix and marrow Schwann cells. PMID- 29320488 TI - Analysis of ferrite nanoparticles in the flow of ferromagnetic nanofluid. AB - Theoretical analysis has been carried out to establish the heat transport phenomenon of six different ferromagnetic MnZnFe2O4-C2H6O2 (manganese zinc ferrite-ethylene glycol), NiZnFe2O4-C2H6O2 (Nickel zinc ferrite-ethylene glycol), Fe2O4-C2H6O2 (magnetite ferrite-ethylene glycol), NiZnFe2O4-H2O (Nickel zinc ferrite-water), MnZnFe2O4-H2O (manganese zinc ferrite-water), and Fe2O4-H2O (magnetite ferrite-water) nanofluids containing manganese zinc ferrite, Nickel zinc ferrite, and magnetite ferrite nanoparticles dispersed in a base fluid of ethylene glycol and water mixture. The performance of convective heat transfer is elevated in boundary layer flow region via nanoparticles. Magnetic dipole in presence of ferrites nanoparticles plays a vital role in controlling the thermal and momentum boundary layers. In perspective of this, the impacts of magnetic dipole on the nano boundary layer, steady, and laminar flow of incompressible ferromagnetic nanofluids are analyzed in the present study. Flow is caused by linear stretching of the surface. Fourier's law of heat conduction is used in the evaluation of heat flux. Impacts of emerging parameters on the magneto thermomechanical coupling are analyzed numerically. Further, it is evident that Newtonian heating has increasing behavior on the rate of heat transfer in the boundary layer. Comparison with available results for specific cases show an excellent agreement. PMID- 29320489 TI - Study of gas production from shale reservoirs with multi-stage hydraulic fracturing horizontal well considering multiple transport mechanisms. AB - Development of unconventional shale gas reservoirs (SGRs) has been boosted by the advancements in two key technologies: horizontal drilling and multi-stage hydraulic fracturing. A large number of multi-stage fractured horizontal wells (MsFHW) have been drilled to enhance reservoir production performance. Gas flow in SGRs is a multi-mechanism process, including: desorption, diffusion, and non Darcy flow. The productivity of the SGRs with MsFHW is influenced by both reservoir conditions and hydraulic fracture properties. However, rare simulation work has been conducted for multi-stage hydraulic fractured SGRs. Most of them use well testing methods, which have too many unrealistic simplifications and assumptions. Also, no systematical work has been conducted considering all reasonable transport mechanisms. And there are very few works on sensitivity studies of uncertain parameters using real parameter ranges. Hence, a detailed and systematic study of reservoir simulation with MsFHW is still necessary. In this paper, a dual porosity model was constructed to estimate the effect of parameters on shale gas production with MsFHW. The simulation model was verified with the available field data from the Barnett Shale. The following mechanisms have been considered in this model: viscous flow, slip flow, Knudsen diffusion, and gas desorption. Langmuir isotherm was used to simulate the gas desorption process. Sensitivity analysis on SGRs' production performance with MsFHW has been conducted. Parameters influencing shale gas production were classified into two categories: reservoir parameters including matrix permeability, matrix porosity; and hydraulic fracture parameters including hydraulic fracture spacing, and fracture half-length. Typical ranges of matrix parameters have been reviewed. Sensitivity analysis have been conducted to analyze the effect of the above factors on the production performance of SGRs. Through comparison, it can be found that hydraulic fracture parameters are more sensitive compared with reservoir parameters. And reservoirs parameters mainly affect the later production period. However, the hydraulic fracture parameters have a significant effect on gas production from the early period. The results of this study can be used to improve the efficiency of history matching process. Also, it can contribute to the design and optimization of hydraulic fracture treatment design in unconventional SGRs. PMID- 29320490 TI - The glutamine synthetase of Trypanosoma cruzi is required for its resistance to ammonium accumulation and evasion of the parasitophorous vacuole during host-cell infection. AB - Trypanosoma cruzi, the etiological agent of Chagas disease, consumes glucose and amino acids depending on the environmental availability of each nutrient during its complex life cycle. For example, amino acids are the major energy and carbon sources in the intracellular stages of the T. cruzi parasite, but their consumption produces an accumulation of NH4+ in the environment, which is toxic. These parasites do not have a functional urea cycle to secrete excess nitrogen as low-toxicity waste. Glutamine synthetase (GS) plays a central role in regulating the carbon/nitrogen balance in the metabolism of most living organisms. We show here that the gene TcGS from T. cruzi encodes a functional glutamine synthetase; it can complement a defect in the GLN1 gene from Saccharomyces cerevisiae and utilizes ATP, glutamate and ammonium to yield glutamine in vitro. Overall, its kinetic characteristics are similar to other eukaryotic enzymes, and it is dependent on divalent cations. Its cytosolic/mitochondrial localization was confirmed by immunofluorescence. Inhibition by Methionine sulfoximine revealed that GS activity is indispensable under excess ammonium conditions. Coincidently, its expression levels are maximal in the amastigote stage of the life cycle, when amino acids are preferably consumed, and NH4+ production is predictable. During host-cell invasion, TcGS is required for the parasite to escape from the parasitophorous vacuole, a process sine qua non for the parasite to replicate and establish infection in host cells. These results are the first to establish a link between the activity of a metabolic enzyme and the ability of a parasite to reach its intracellular niche to replicate and establish host-cell infection. PMID- 29320492 TI - Metallochaperone UreG serves as a new target for design of urease inhibitor: A novel strategy for development of antimicrobials. AB - Urease as a potential target of antimicrobial drugs has received considerable attention given its versatile roles in microbial infection. Development of effective urease inhibitors, however, is a significant challenge due to the deeply buried active site and highly specific substrate of a bacterial urease. Conventionally, urease inhibitors are designed by either targeting the active site or mimicking substrate of urease, which is not efficient. Up to now, only one effective inhibitor-acetohydroxamic acid (AHA)-is clinically available, but it has adverse side effects. Herein, we demonstrate that a clinically used drug, colloidal bismuth subcitrate, utilizes an unusual way to inhibit urease activity, i.e., disruption of urease maturation process via functional perturbation of a metallochaperone, UreG. Similar phenomena were also observed in various pathogenic bacteria, suggesting that UreG may serve as a general target for design of new types of urease inhibitors. Using Helicobacter pylori UreG as a showcase, by virtual screening combined with experimental validation, we show that two compounds targeting UreG also efficiently inhibited urease activity with inhibitory concentration (IC)50 values of micromolar level, resulting in attenuated virulence of the pathogen. We further demonstrate the efficacy of the compounds in a mammalian cell infection model. This study opens up a new opportunity for the design of more effective urease inhibitors and clearly indicates that metallochaperones involved in the maturation of important microbial metalloenzymes serve as new targets for devising a new type of antimicrobial drugs. PMID- 29320493 TI - From macro- to microfactors in health: Social science approaches in research on sexually transmitted infections. AB - Ruth Kutalek and colleagues share their Perspective on Kipruto Chesang and colleagues' qualitative study of beliefs and practices among healthcare providers managing STIs in Kenya and discuss the value of this type of research for addressing biosocial challenges. PMID- 29320494 TI - Sexually transmitted infections in the era of antiretroviral-based HIV prevention: Priorities for discovery research, implementation science, and community involvement. AB - Jeanne M. Marrazzo and colleagues join PLOS Medicine's Collection on the prevention, diagnosis, and treatment of STIs with a Perspective on HIV research imperatives in our time of effective viral suppression and pre-exposure prophylaxis. PMID- 29320491 TI - Cdc73 suppresses genome instability by mediating telomere homeostasis. AB - Defects in the genes encoding the Paf1 complex can cause increased genome instability. Loss of Paf1, Cdc73, and Ctr9, but not Rtf1 or Leo1, caused increased accumulation of gross chromosomal rearrangements (GCRs). Combining the cdc73Delta mutation with individual deletions of 43 other genes, including TEL1 and YKU80, which are involved in telomere maintenance, resulted in synergistic increases in GCR rates. Whole genome sequence analysis of GCRs indicated that there were reduced relative rates of GCRs mediated by de novo telomere additions and increased rates of translocations and inverted duplications in cdc73Delta single and double mutants. Analysis of telomere lengths and telomeric gene silencing in strains containing different combinations of cdc73Delta, tel1Delta and yku80Delta mutations suggested that combinations of these mutations caused increased defects in telomere maintenance. A deletion analysis of Cdc73 revealed that a central 105 amino acid region was necessary and sufficient for suppressing the defects observed in cdc73Delta strains; this region was required for the binding of Cdc73 to the Paf1 complex through Ctr9 and for nuclear localization of Cdc73. Taken together, these data suggest that the increased GCR rate of cdc73Delta single and double mutants is due to partial telomere dysfunction and that Ctr9 and Paf1 play a central role in the Paf1 complex potentially by scaffolding the Paf1 complex subunits or by mediating recruitment of the Paf1 complex to the different processes it functions in. PMID- 29320495 TI - The WHO 2016 verbal autopsy instrument: An international standard suitable for automated analysis by InterVA, InSilicoVA, and Tariff 2.0. AB - BACKGROUND: Verbal autopsy (VA) is a practical method for determining probable causes of death at the population level in places where systems for medical certification of cause of death are weak. VA methods suitable for use in routine settings, such as civil registration and vital statistics (CRVS) systems, have developed rapidly in the last decade. These developments have been part of a growing global momentum to strengthen CRVS systems in low-income countries. With this momentum have come pressure for continued research and development of VA methods and the need for a single standard VA instrument on which multiple automated diagnostic methods can be developed. METHODS AND FINDINGS: In 2016, partners harmonized a WHO VA standard instrument that fully incorporates the indicators necessary to run currently available automated diagnostic algorithms. The WHO 2016 VA instrument, together with validated approaches to analyzing VA data, offers countries solutions to improving information about patterns of cause specific mortality. This VA instrument offers the opportunity to harmonize the automated diagnostic algorithms in the future. CONCLUSIONS: Despite all improvements in design and technology, VA is only recommended where medical certification of cause of death is not possible. The method can nevertheless provide sufficient information to guide public health priorities in communities in which physician certification of deaths is largely unavailable. The WHO 2016 VA instrument, together with validated approaches to analyzing VA data, offers countries solutions to improving information about patterns of cause-specific mortality. PMID- 29320496 TI - Bayesian inference of phylogenetic networks from bi-allelic genetic markers. AB - Phylogenetic networks are rooted, directed, acyclic graphs that model reticulate evolutionary histories. Recently, statistical methods were devised for inferring such networks from either gene tree estimates or the sequence alignments of multiple unlinked loci. Bi-allelic markers, most notably single nucleotide polymorphisms (SNPs) and amplified fragment length polymorphisms (AFLPs), provide a powerful source of genome-wide data. In a recent paper, a method called SNAPP was introduced for statistical inference of species trees from unlinked bi allelic markers. The generative process assumed by the method combined both a model of evolution for the bi-allelic markers, as well as the multispecies coalescent. A novel component of the method was a polynomial-time algorithm for exact computation of the likelihood of a fixed species tree via integration over all possible gene trees for a given marker. Here we report on a method for Bayesian inference of phylogenetic networks from bi-allelic markers. Our method significantly extends the algorithm for exact computation of phylogenetic network likelihood via integration over all possible gene trees. Unlike the case of species trees, the algorithm is no longer polynomial-time on all instances of phylogenetic networks. Furthermore, the method utilizes a reversible-jump MCMC technique to sample the posterior of phylogenetic networks given bi-allelic marker data. Our method has a very good performance in terms of accuracy and robustness as we demonstrate on simulated data, as well as a data set of multiple New Zealand species of the plant genus Ourisia (Plantaginaceae). We implemented the method in the publicly available, open-source PhyloNet software package. PMID- 29320497 TI - Survival analysis and classification methods for forest fire size. AB - Factors affecting wildland-fire size distribution include weather, fuels, and fire suppression activities. We present a novel application of survival analysis to quantify the effects of these factors on a sample of sizes of lightning-caused fires from Alberta, Canada. Two events were observed for each fire: the size at initial assessment (by the first fire fighters to arrive at the scene) and the size at "being held" (a state when no further increase in size is expected). We developed a statistical classifier to try to predict cases where there will be a growth in fire size (i.e., the size at "being held" exceeds the size at initial assessment). Logistic regression was preferred over two alternative classifiers, with covariates consistent with similar past analyses. We conducted survival analysis on the group of fires exhibiting a size increase. A screening process selected three covariates: an index of fire weather at the day the fire started, the fuel type burning at initial assessment, and a factor for the type and capabilities of the method of initial attack. The Cox proportional hazards model performed better than three accelerated failure time alternatives. Both fire weather and fuel type were highly significant, with effects consistent with known fire behaviour. The effects of initial attack method were not statistically significant, but did suggest a reverse causality that could arise if fire management agencies were to dispatch resources based on a-priori assessment of fire growth potentials. We discuss how a more sophisticated analysis of larger data sets could produce unbiased estimates of fire suppression effect under such circumstances. PMID- 29320498 TI - Molecular mapping of QTL alleles of Brassica oleracea affecting days to flowering and photosensitivity in spring Brassica napus. AB - Earliness of flowering and maturity are important traits in spring Brassica napus canola-whether grown under long- or short-day condition. By use of a spring B. napus mapping population carrying the genome content of B. oleracea and testing this population under 10 to 18 h photoperiod and 18 to 20 0C (day) temperature conditions, we identified a major QTL on the chromosome C1 affecting flowering time without being influenced by photoperiod and temperature, and a major QTL on C9 affecting flowering time under a short photoperiod (10 h); in both cases, the QTL alleles reducing the number of days to flowering in B. napus were introgressed from the late flowering species B. oleracea. Additive effect of the C1 QTL allele at 14 to18 h photoperiod was 1.1 to 2.9 days; however, the same QTL allele exerted an additive effect of 6.2 days at 10 h photoperiod. Additive effect of the C9 QTL at 10 h photoperiod was 2.8 days. These two QTL also showed significant interaction in the control of flowering only under a short-day (10 h photoperiod) condition with an effect of 2.3 days. A few additional QTL were also detected on the chromosomes C2 and C8; however, none of these QTL could be detected under all photoperiod and temperature conditions. BLASTn search identified several putative flowering time genes on the chromosomes C1 and C9 and located the physical position of the QTL markers in the Brassica genome; however, only a few of these genes were found within the QTL region. Thus, the molecular markers and the genomic regions identified in this research could potentially be used in breeding for the development of early flowering photoinsensitive B. napus canola cultivars, as well as for identification of candidate genes involved in flowering time variation and photosensitivity. PMID- 29320499 TI - Precocious development of self-awareness in dolphins. AB - Mirror-self recognition (MSR) is a behavioral indicator of self-awareness in young children and only a few other species, including the great apes, dolphins, elephants and magpies. The emergence of self-awareness in children typically occurs during the second year and has been correlated with sensorimotor development and growing social and self-awareness. Comparative studies of MSR in chimpanzees report that the onset of this ability occurs between 2 years 4 months and 3 years 9 months of age. Studies of wild and captive bottlenose dolphins (Tursiops truncatus) have reported precocious sensorimotor and social awareness during the first weeks of life, but no comparative MSR research has been conducted with this species. We exposed two young bottlenose dolphins to an underwater mirror and analyzed video recordings of their behavioral responses over a 3-year period. Here we report that both dolphins exhibited MSR, indicated by self-directed behavior at the mirror, at ages earlier than generally reported for children and at ages much earlier than reported for chimpanzees. The early onset of MSR in young dolphins occurs in parallel with their advanced sensorimotor development, complex and reciprocal social interactions, and growing social awareness. Both dolphins passed subsequent mark tests at ages comparable with children. Thus, our findings indicate that dolphins exhibit self-awareness at a mirror at a younger age than previously reported for children or other species tested. PMID- 29320500 TI - Brain structural changes in cynomolgus monkeys administered with 1-methyl-4 phenyl-1,2,3,6-tetrahydropyridine: A longitudinal voxel-based morphometry and diffusion tensor imaging study. AB - In animal models of Parkinson's disease (PD), 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine (MPTP) is one of the most widely used agents that damages the nigrostriatal dopaminergic pathway. However, brain structural changes in response to MPTP remain unclear. This study aimed to investigate in vivo longitudinal changes in gray matter (GM) volume and white matter (WM) microstructure in primate models administered with MPTP. In six cynomolgus monkeys, high-resolution magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) scans were acquired 7 times over 32 weeks, and assessments of motor symptoms were conducted over 15 months, before and after the MPTP injection. Changes in GM volume and WM microstructure were estimated on a voxel-by-voxel basis. Mixed-effects regression models were used to examine the trajectories of these structural changes. GM volume initially increased after the MPTP injection and gradually decreased in the striatum, midbrain, and other dopaminergic areas. The cerebellar volume temporarily decreased and returned to its baseline level. The rate of midbrain volume increase was positively correlated with the increase rate of motor symptom severity (Spearman rho = 0.93, p = 0.008). Mean, axial, and radial diffusivity in the striatum and frontal areas demonstrated initial increases and subsequent decreases. The current multi-modal imaging study of MPTP-administered monkeys revealed widespread and dynamic structural changes not only in the nigrostriatal pathway but also in other cortical, subcortical, and cerebellar areas. Our findings may suggest the need to further investigate the roles of inflammatory reactions and glial activation as potential underlying mechanisms of these structural changes. PMID- 29320501 TI - Uncertainty of future projections of species distributions in mountainous regions. AB - Multiple factors introduce uncertainty into projections of species distributions under climate change. The uncertainty introduced by the choice of baseline climate information used to calibrate a species distribution model and to downscale global climate model (GCM) simulations to a finer spatial resolution is a particular concern for mountainous regions, as the spatial resolution of climate observing networks is often insufficient to detect the steep climatic gradients in these areas. Using the maximum entropy (MaxEnt) modeling framework together with occurrence data on 21 understory bamboo species distributed across the mountainous geographic range of the Giant Panda, we examined the differences in projected species distributions obtained from two contrasting sources of baseline climate information, one derived from spatial interpolation of coarse scale station observations and the other derived from fine-spatial resolution satellite measurements. For each bamboo species, the MaxEnt model was calibrated separately for the two datasets and applied to 17 GCM simulations downscaled using the delta method. Greater differences in the projected spatial distributions of the bamboo species were observed for the models calibrated using the different baseline datasets than between the different downscaled GCM simulations for the same calibration. In terms of the projected future climatically-suitable area by species, quantification using a multi-factor analysis of variance suggested that the sum of the variance explained by the baseline climate dataset used for model calibration and the interaction between the baseline climate data and the GCM simulation via downscaling accounted for, on average, 40% of the total variation among the future projections. Our analyses illustrate that the combined use of gridded datasets developed from station observations and satellite measurements can help estimate the uncertainty introduced by the choice of baseline climate information to the projected changes in species distribution. PMID- 29320502 TI - Impaired IFN-alpha-mediated signal in dendritic cells differentiates active from latent tuberculosis. AB - Individuals exposed to Mycobacterium tuberculosis (Mtb) may be infected and remain for the entire life in this condition defined as latent tuberculosis infection (LTBI) or develop active tuberculosis (TB). Among the multiple factors governing the outcome of the infection, dendritic cells (DCs) play a major role in dictating antibacterial immunity. However, current knowledge on the role of the diverse components of human DCs in shaping specific T-cell response during Mtb infection is limited. In this study, we performed a comparative evaluation of peripheral blood circulating DC subsets as well as of monocyte-derived Interferon alpha DCs (IFN-DCs) from patients with active TB, subjects with LTBI and healthy donors (HD). The proportion of circulating myeloid BDCA3+ DCs (mDC2) and plasmacytoid CD123+ DCs (pDCs) declined significantly in active TB patients compared to HD, whereas the same subsets displayed a remarkable activation in LTBI subjects. Simultaneously, the differentiation of IFN-DCs from active TB patients resulted profoundly impaired compared to those from LTBI and HD individuals. Importantly, the altered developmental trait of IFN-DCs from active TB patients was associated with down-modulation of IFN-linked genes, marked changes in molecular signaling conveying antigen (Ag) presentation and full inability to induce Ag-specific T cell response. Thus, these data reveal an important role of IFN-alpha in determining the induction of Mtb-specific immunity. PMID- 29320503 TI - Pattern of peripapillary capillary density loss in ischemic optic neuropathy compared to that in primary open-angle glaucoma. AB - PURPOSE: Both non-arteritic anterior ischemic optic neuropathy (NAION) and primary open-angle glaucoma (POAG) damage retinal ganglion cell axons, which are perfused by the radial peripapillary capillaries. To evaluate the pattern of ischemia, we compared peripapillary capillary density (PCD) in NAION eyes to POAG eyes matched for visual field mean deviation and retinal nerve fiber layer thickness. METHODS: 31 chronic NAION (>6 months after the acute event) and unaffected fellow eyes (31 subjects), 42 moderate and severe POAG eyes (27 subjects), and 77 control eyes (46 healthy subjects) were imaged with a commercial optical coherence tomography angiography system (AngioVue, Avanti RTVue-XR, Optovue, CA) at two academic institutions. Two concentric circles of diameters 1.95mm (inner) and 3.45mm (outer) were manually placed on images centered on the optic nerve head, producing an annular region-of-interest. Image analysis with major vessel removal was performed using a custom program. Whole image, whole-annulus, and sectoral PCDs were measured. RESULTS: Whole-image and whole-annulus PCDs in NAION and moderate and severe POAG eyes were significantly decreased compared to unaffected fellow eyes and control eyes (all P<0.001). Superior and temporal PCD values were affected more than other sectors in both NAION and POAG groups compared to control group. Whole-image and whole-annulus PCDs were not statistically different between NAION and POAG eyes (both P = 0.99). However, of all peripapillary sectors, the inferior sector PCD value was less affected in POAG eyes compared to NAION eyes (P = 0.001). Univariate analysis results also revealed a significant positive correlation between superior and inferior PCDs and corresponding RNFL thicknesses. The inferior sector correlation was greater in POAG than NAION eyes. CONCLUSION: While the whole PCD values were not different in chronic NAION and POAG, the greater correlation of inferior PCD with corresponding RNFL sectors in POAG compared to NAION suggests greater susceptibility of the inferior radial peripapillary capillary in the pathogenesis of POAG. PMID- 29320504 TI - Evaluation of the practicability and virological performance of finger-stick whole-blood HIV self-testing in French-speaking sub-Saharan Africa. AB - BACKGROUND: Opportunities for HIV testing could be enhanced by offering HIV self testing (HIVST) in populations that fear stigma and discrimination when accessing conventional HIV counselling and testing in health care facilities. Field experience with HIVST has not yet been reported in French-speaking African countries. METHODS: The practicability of HIVST was assessed using the prototype the Exacto(r) Test HIV (Biosynex, Strasbourg, France) self-test in 322 adults living in Kisangani and Bunia, Democratic Republic of the Congo, according to World Health Organization's recommendations. Simplified and easy-to-read leaflet was translated in French, Lingala and Swahili. RESULTS: Forty-nine percent of participants read the instructions for use in French, while 17.1% and 33.9% read the instructions in Lingala and Swahili, respectively. The instructions for use were correctly understood in 79.5% of cases. The majority (98.4%) correctly performed the HIV self-test; however, 20.8% asked for oral assistance. Most of the participants (95.3%) found that performing the self-test was easy, while 4.7% found it difficult. Overall, the results were correctly interpreted in 90.2% of cases. Among the positive, negative, and invalid self-tests, misinterpretation occurred in 6.5%, 11.2%, and 16.0% of cases, respectively (P<0.0001). The Cohen's kappa coefficient was 0.84. The main obstacle for HIVST was educational level, with execution and interpretation difficulties occurring among poorly educated people. The Exacto(r) Test HIV self-test showed 100.0% (95% CI; 98.8-100.0) sensitivity and 99.2% (95% CI; 97.5-99.8) specificity. CONCLUSIONS: Our field observations demonstrate: (i) the need to adapt the instructions for use to the Congolese general public, including adding educational pictograms as well as instructions for use in the local vernacular language(s); (ii) frequent difficulties understanding the instructions for use in addition to frequent misinterpretation of test results; and (iii) the generally good practicability of the HIV self-test despite some limitations. Supervised use of HIVST is recommended among poorly-educated people. PMID- 29320505 TI - Methodology of mixed load customized bus lines and adjustment based on time windows. AB - Custom bus routes need to be optimized to meet the needs of a customized bus for personalized trips of different passengers. This paper introduced a customized bus routing problem in which trips for each depot are given, and each bus stop has a fixed time window within which trips should be completed. Treating a trip as a virtual stop was the first consideration in solving the school bus routing problem (SBRP). Then, the mixed load custom bus routing model was established with a time window that satisfies its requirement and the result were solved by Cplex software. Finally, a simple network diagram with three depots, four pickup stops, and five delivery stops was structured to verify the correctness of the model, and based on the actual example, the result is that all the buses ran 124.42 kilometers, the sum of kilometers was 10.35 kilometers less than before. The paths and departure times of the different busses that were provided by the model were evaluated to meet the needs of the given conditions, thus providing valuable information for actual work. PMID- 29320506 TI - Thinking of me: Self-focus reduces sharing and helping in seven- to eight-year olds. AB - By 7-to 8-years of age, most children readily adhere to prosocial norms aimed at benefiting others through giving up time and effort (helping) or resources (sharing). Two studies explored whether sharing and helping by 7-to 8-year olds (N = 180) could be influenced by priming children's attention on themselves or their friends through a semi-structured interview. Results revealed that self priming led to reductions in both sharing and helping compared to friendship priming or a control condition. These findings are considered as indicative of the fragile state of prosocial behaviours at this age that can be easily shifted towards more selfish biases by simple priming. PMID- 29320507 TI - HPV prevalence and HPV-related dysplasia in elderly women. AB - INTRODUCTION: In Sweden, where screening ends at the age of 60, about 30% of the cervical cancer cases occur in women older than 60. The aim of the present study was to investigate the prevalence of HPV and cervical dysplasia in women of 60 years and above. PATIENTS AND METHODS: From September 2013 until June 2015, 1051 women aged 60-89 years (mean 68 years) were sampled for an HPV test when attending an outpatient gynecology clinic. Women with positive results had a second HPV test and liquid based cytology (LBC), after 3.5 months on average. Those with a positive second HPV test were examined by colposcopy, and biopsy and a sample for LBC was obtained. RESULTS: The prevalence of HPV was 4.1%, (95%CI 3.0-5.5, n = 43) at the first test, and at the second test 2.6% remained positive (95%CI 1.7-3.8, n = 27). The majority of women positive in both HPV tests, had dysplasia in histology, 81.5% (22/27) (4 CIN 2-0.4%, 18 CIN 1-1.7%). HPV-related dysplasia was found in 2.1%, (95%CI 1.3-3.2, n = 22) of the 1051 women. Four of the 22 women with positive HPV tests also had abnormal cytology, one ASCUS and three CIN 1. No cancer or glandular dysplasia was detected. CONCLUSION: A significant proportion of elderly women were found to have a persistent cervical HPV infection. Among them there was a high prevalence of CIN diagnosed by histology. The HPV test showed high sensitivity and specificity in detecting CIN in elderly women, while cytology showed extremely low sensitivity. PMID- 29320508 TI - Characterizing the field of Atomic Layer Deposition: Authors, topics, and collaborations. AB - This paper describes how Atomic Layer Deposition (ALD) has evolved over time using a combination of bibliometric, social network, and text analysis. We examined the rate of knowledge production as well as changes in authors, journals, and collaborators, showing a steady growth of ALD research. The study of the collaboration network of ALD scientists over time points out that the ALD research community is becoming larger and more interconnected, with a largest connected component that spans 90% of the authors in 2015. In addition, the evolution of network centrality measures (degree and betweenness centrality) and author productivity revealed the central figures in ALD over time, including new "stars" appearing in the last decade. Finally, the study of the title words in our dataset is consistent with a shift in focus on research topics towards energy applications and nanotechnology. PMID- 29320509 TI - Dynamics of co-authorship and productivity across different fields of scientific research. AB - We aimed to assess which factors correlate with collaborative behavior and whether such behavior associates with scientific impact (citations and becoming a principal investigator). We used the R index which is defined for each author as log(Np)/log(I1), where I1 is the number of co-authors who appear in at least I1 papers written by that author and Np are his/her total papers. Higher R means lower collaborative behavior, i.e. not working much with others, or not collaborating repeatedly with the same co-authors. Across 249,054 researchers who had published >=30 papers in 2000-2015 but had not published anything before 2000, R varied across scientific fields. Lower values of R (more collaboration) were seen in physics, medicine, infectious disease and brain sciences and higher values of R were seen for social science, computer science and engineering. Among the 9,314 most productive researchers already reaching Np >= 30 and I1 >= 4 by the end of 2006, R mostly remained stable for most fields from 2006 to 2015 with small increases seen in physics, chemistry, and medicine. Both US-based authorship and male gender were associated with higher values of R (lower collaboration), although the effect was small. Lower values of R (more collaboration) were associated with higher citation impact (h-index), and the effect was stronger in certain fields (physics, medicine, engineering, health sciences) than in others (brain sciences, computer science, infectious disease, chemistry). Finally, for a subset of 400 U.S. researchers in medicine, infectious disease and brain sciences, higher R (lower collaboration) was associated with a higher chance of being a principal investigator by 2016. Our analysis maps the patterns and evolution of collaborative behavior across scientific disciplines. PMID- 29320512 TI - Killing wolves to prevent predation on livestock may protect one farm but harm neighbors. AB - Large carnivores, such as gray wolves, Canis lupus, are difficult to protect in mixed-use landscapes because some people perceive them as dangerous and because they sometimes threaten human property and safety. Governments may respond by killing carnivores in an effort to prevent repeated conflicts or threats, although the functional effectiveness of lethal methods has long been questioned. We evaluated two methods of government intervention following independent events of verified wolf predation on domestic animals (depredation) in the Upper Peninsula of Michigan, USA between 1998-2014, at three spatial scales. We evaluated two intervention methods using log-rank tests and conditional Cox recurrent event, gap time models based on retrospective analyses of the following quasi-experimental treatments: (1) selective killing of wolves by trapping near sites of verified depredation, and (2) advice to owners and haphazard use of non lethal methods without wolf-killing. The government did not randomly assign treatments and used a pseudo-control (no removal of wolves was not a true control), but the federal permission to intervene lethally was granted and rescinded independent of events on the ground. Hazard ratios suggest lethal intervention was associated with an insignificant 27% lower risk of recurrence of events at trapping sites, but offset by an insignificant 22% increase in risk of recurrence at sites up to 5.42 km distant in the same year, compared to the non lethal treatment. Our results do not support the hypothesis that Michigan's use of lethal intervention after wolf depredations was effective for reducing the future risk of recurrence in the vicinities of trapping sites. Examining only the sites of intervention is incomplete because neighbors near trapping sites may suffer the recurrence of depredations. We propose two new hypotheses for perceived effectiveness of lethal methods: (a) killing predators may be perceived as effective because of the benefits to a small minority of farmers, and (b) if neighbors experience side-effects of lethal intervention such as displaced depredations, they may perceive the problem growing and then demand more lethal intervention rather than detecting problems spreading from the first trapping site. Ethical wildlife management guided by the "best scientific and commercial data available" would suggest suspending the standard method of trapping wolves in favor of non-lethal methods (livestock guarding dogs or fladry) that have been proven effective in preventing livestock losses in Michigan and elsewhere. PMID- 29320510 TI - Adipose tissue ATGL modifies the cardiac lipidome in pressure-overload-induced left ventricular failure. AB - Adipose tissue lipolysis occurs during the development of heart failure as a consequence of chronic adrenergic stimulation. However, the impact of enhanced adipose triacylglycerol hydrolysis mediated by adipose triglyceride lipase (ATGL) on cardiac function is unclear. To investigate the role of adipose tissue lipolysis during heart failure, we generated mice with tissue-specific deletion of ATGL (atATGL-KO). atATGL-KO mice were subjected to transverse aortic constriction (TAC) to induce pressure-mediated cardiac failure. The cardiac mouse lipidome and the human plasma lipidome from healthy controls (n = 10) and patients with systolic heart failure (HFrEF, n = 13) were analyzed by MS-based shotgun lipidomics. TAC-induced increases in left ventricular mass (LVM) and diastolic LV inner diameter were significantly attenuated in atATGL-KO mice compared to wild type (wt) -mice. More importantly, atATGL-KO mice were protected against TAC-induced systolic LV failure. Perturbation of lipolysis in the adipose tissue of atATGL-KO mice resulted in the prevention of the major cardiac lipidome changes observed after TAC in wt-mice. Profound changes occurred in the lipid class of phosphatidylethanolamines (PE) in which multiple PE-species were markedly induced in failing wt-hearts, which was attenuated in atATGL-KO hearts. Moreover, selected heart failure-induced PE species in mouse hearts were also induced in plasma samples from patients with chronic heart failure. TAC-induced cardiac PE induction resulted in decreased PC/ PE-species ratios associated with increased apoptotic marker expression in failing wt-hearts, a process absent in atATGL-KO hearts. Perturbation of adipose tissue lipolysis by ATGL-deficiency ameliorated pressure-induced heart failure and the potentially deleterious cardiac lipidome changes that accompany this pathological process, namely the induction of specific PE species. Non-cardiac ATGL-mediated modulation of the cardiac lipidome may play an important role in the pathogenesis of chronic heart failure. PMID- 29320511 TI - Application of a phenotypic drug discovery strategy to identify biological and chemical starting points for inhibition of TSLP production in lung epithelial cells. AB - Thymic stromal lymphopoietin (TSLP) is a cytokine released by human lung epithelium in response to external insult. Considered as a master switch in T helper 2 lymphocyte (Th2) mediated responses, TSLP is believed to play a key role in allergic diseases including asthma. The aim of this study was to use a phenotypic approach to identify new biological and chemical starting points for inhibition of TSLP production in human bronchial epithelial cells (NHBE), with the objective of reducing Th2-mediated airway inflammation. To this end, a phenotypic screen was performed using poly I:C / IL-4 stimulated NHBE cells interrogated with a 44,974 compound library. As a result, 85 hits which downregulated TSLP protein and mRNA levels were identified and a representative subset of 7 hits was selected for further characterization. These molecules inhibited the activity of several members of the MAPK, PI3K and tyrosine kinase families and some of them have been reported as modulators of cellular phenotypic endpoints like cell-cell contacts, microtubule polymerization and caspase activation. Characterization of the biological profile of the hits suggested that mTOR could be a key activity involved in the regulation of TSLP production in NHBE cells. Among other targeted kinases, inhibition of p38 MAPK and JAK kinases showed different degrees of correlation with TSLP downregulation, while Syk kinase did not seem to be related. Overall, inhibition of TSLP production by the selected hits, rather than resulting from inhibition of single isolated targets, appeared to be due to a combination of activities with different levels of relevance. Finally, a hit expansion exercise yielded additional active compounds that could be amenable to further optimization, providing an opportunity to dissociate TSLP inhibition from other non-desired activities. This study illustrates the potential of phenotypic drug discovery to complement target based approaches by providing new chemistry and biology leads. PMID- 29320513 TI - A harm-reduction model of abortion counseling about misoprostol use in Peru with telephone and in-person follow-up: A cohort study. AB - BACKGROUND: In Peru, abortion is legal only to preserve the life and health of the woman. A non-profit clinic system in Peru implemented a harm-reduction model for women with unwanted pregnancy that included pre-abortion care with instructions about misoprostol use and post-abortion care; they started offering telephone follow-up for clients in 2011. This study aimed to evaluate the effectiveness and safety of the harm-reduction model, and to compare outcomes by type of follow-up obtained. METHODS: Between January 2012 and March 2013, 500 adult women seeking harm-reduction services were recruited into the study. Telephone surveys were conducted approximately four weeks after their initial harm-reduction counseling session with 262 women (response rate 52%); 9 participants were excluded. The survey focused on whether women pursued an abortion, and if so, what their experience was. Demographic and clinical data were also extracted from clinic records. RESULTS: Eighty-six percent of participants took misoprostol; among those taking misoprostol, 89% reported a complete abortion at the time of the survey. Twenty-two percent obtained an aspiration after taking misoprostol and 8% self-reported adverse events including hemorrhage without transfusion, infection, or severe pain. Among women who took misoprostol, 46% reported receiving in-person follow-up (in some cases both telephone and in-person), 34% received telephone only, and 20% did not report receiving any form of follow-up. Those who had in-person follow-up with the counselor were most likely to report a complete abortion (<0.001). Satisfaction with both types of follow-up was very high, with 81%-89% reporting being very satisfied. CONCLUSIONS: Liberalization of restrictive abortion laws is associated with improvements in health outcomes, but the process of legal reform is often lengthy. In the interim, giving women information about evidence-based regimens of misoprostol, as well as offering a range of follow-up options to ensure high quality post-abortion care, may reduce the risks associated with unsafe abortion. PMID- 29320514 TI - Sound-mapping a coniferous forest-Perspectives for biodiversity monitoring and noise mitigation. AB - Acoustic diversity indices have been proposed as low-cost biodiversity monitoring tools. The acoustic diversity of a soundscape can be indicative of the richness of an acoustic community and the structural/vegetation characteristics of a habitat. There is a need to apply these methods to landscapes that are ecologically and/or economically important. We investigate the relationship between the acoustic properties of a coniferous forest with stand-age and structure. We sampled a 73 point grid in part of the UK's largest man-made lowland coniferous plantation forest, covering a 320ha mosaic of different aged stands. Forest stands ranged from 0-85 years old providing an age-gradient. Short soundscape recordings were collected from each grid point on multiple mornings (between 6am-11am) to capture the dawn chorus. We repeated the study during July/August in 2014 and again in 2015. Five acoustic indices were calculated for a total of 889 two minute samples. Moderate relationships between acoustic diversity with forest stand-age and vegetation characteristics (canopy height; canopy cover) were observed. Ordinations suggest that as structural complexity and forest age increases, the higher frequency bands (4-10KHz) become more represented in the soundscape. A strong linear relationship was observed between distance to the nearest road and the ratio of anthropogenic noise to biological sounds within the soundscape. Similar acoustic patterns were observed in both years, though acoustic diversity was generally lower in 2014, which was likely due to differences in wind conditions between years. Our results suggest that developing these relatively low-cost acoustic monitoring methods to inform adaptive management of production landscapes, may lead to improved biodiversity monitoring. The methods may also prove useful for modelling road noise, landscape planning and noise mitigation. PMID- 29320515 TI - Vigilant conservatism in evaluating communicated information. AB - In the absence of other information, people put more weight on their own opinion than on the opinion of others: they are conservative. Several proximal mechanisms have been suggested to account for this finding. One of these mechanisms is that people cannot access reasons for other people's opinions, but they can access the reasons for their own opinions-whether they are the actual reasons that led them to hold the opinions (rational access to reasons), or post-hoc constructions (biased access to reasons). In four experiments, participants were asked to provide an opinion, and then faced with another participant's opinion and asked if they wanted to revise their initial opinion. Some questions were manipulated so that the advice participants were receiving was in fact their own opinion, while what they thought was their own opinion was in fact not. In all experiments, the participants were consistently biased towards what they thought was their own opinion, showing that conservativeness cannot be explained by rational access to reasons, which should have favored the advice. One experiment revealed that conservativeness was not decreased under time pressure, suggesting that biased access to reasons is an unlikely explanation for conservativeness. The experiments also suggest that repetition plays a role in advice taking, with repeated opinions being granted more weight than non-fluent opinions. Our results are not consistent with any of the established proximal explanations for conservatism. Instead, we suggest an ultimate explanation-vigilant conservatism that sees conservatism as adaptive since receivers should be wary of senders' interests, as they rarely perfectly converge with theirs. PMID- 29320516 TI - Impact of mode of delivery on pregnancy outcomes in women with premature rupture of membranes after 28 weeks of gestation in a low-resource setting: A prospective cohort study. AB - BACKGROUND: Despite the high prevalence of premature rupture of membranes (PROM) in low-resource settings, the preferred mode of delivery remains unclear. We compared the perinatal mortality in a prospective cohort of women with PROM after 28 weeks following vaginal or caesarean delivery at Mulago Hospital with the aim of adopting evidence based practice and improving patient care. METHODS: Between November 2015 and May 2016, 1455 women with PROM after 28 weeks of gestation and their newborns were prospectively followed from admission to discharge at Mulago Hospital. The primary outcome was perinatal mortality. Secondary neonatal outcomes included sepsis and admission to the Special Care Unit. Maternal outcomes included maternal deaths and complications. Outcomes were compared between women who had vaginal vs. caesarean delivery using multivariable logistic regression. All statistical tests were 2-sided with the level of statistical significance set at p < 0.05. RESULTS: The incidence of PROM was 12.1%. The perinatal mortality following PROM was 65 per 1000 live births. Of the 1425 women with PROM, 991 (69.5%) had vaginal delivery and 434 (30.5%) underwent Caesarean section. There was no statistical difference in perinatal mortality by the mode of delivery (vaginal vs. caesarean) in PROM (p = 0.12). The risk factors for perinatal mortality included chorioamnionitis, failure to administer corticosteroids in preterm PROM, gestational age (28-33 weeks), duration of drainage of liquor (24-48 hours), and presence of maternal complications. Caesarean delivery was associated with increased maternal postpartum infections, admission to the Special Care Unit and maternal death. CONCLUSION: In low resource settings, vaginal delivery is the preferred mode of delivery for PROM after 28 weeks gestation. It is associated with lesser maternal and perinatal morbidity when compared to caesarean delivery. PMID- 29320517 TI - Explaining the decline in coronary heart disease mortality rates in the Slovak Republic between 1993-2008. AB - OBJECTIVE: Between the years 1993 and 2008, mortality rates from coronary heart disease (CHD) in the Slovak Republic have decreased by almost one quarter. However, this was a smaller decline than in neighbouring countries. The aim of this modelling study was therefore to quantify the contributions of risk factor changes and the use of evidence-based medical therapies to the CHD mortality decline between 1993 and 2008. METHODS: We identified, obtained and scrutinised the data required for the model. These data detailed trends in the major population cardiovascular risk factors (smoking, blood pressure, total cholesterol, diabetes prevalence, body mass index (BMI) and physical activity levels), and also the uptake of all standard CHD treatments. The main data sources were official statistics (National Health Information Centre and Statistical Office of the Slovak Republic) and national representative studies (AUDIT, SLOVAKS, SLOVASeZ, CINDI, EHES, EHIS). The previously validated IMPACT policy model was then used to combine and integrate these data with effect sizes from published meta-analyses quantifying the effectiveness of specific evidence based treatments, and population-wide changes in cardiovascular risk factors. Results were expressed as deaths prevented or postponed (DPPs) attributable to risk factor changes or treatments. Uncertainties were explored using sensitivity analyses. RESULTS: Between 1993 and 2008 age-adjusted CHD mortality rates in the Slovak Republic (SR) decreased by 23% in men and 26% in women aged 25-74 years. This represented some 1820 fewer CHD deaths in 2008 than expected if mortality rates had not fallen. The IMPACT model explained 91% of this mortality decline. Approximately 50% of the decline was attributable to changes in acute phase and secondary prevention treatments, particularly acute and chronic treatments for heart failure (~12%), acute coronary syndrome treatments (~9%) and secondary prevention following AMI and revascularisation (~8%). Changes in CHD risk factors explained approximately 41% of the total mortality decrease, mainly reflecting reductions in total serum cholesterol. However, other risk factors demonstrated adverse trends and thus generated approximately 740 additional deaths. CONCLUSION: Our analysis suggests that approximately half the CHD mortality fall recently observed in the SR may be attributable to the increased use of evidence based treatments. However, the adverse trends observed in all the major cardiovascular risk factors (apart from total cholesterol) are deeply worrying. They highlight the need for more energetic population-wide prevention policies such as tobacco control, reducing salt and industrial trans fats content in processed food, clearer food labelling and regulated marketing of processed foods and sugary drinks. PMID- 29320519 TI - The effect of small-sided games with different levels of opposition on the tactical behaviour of young footballers with different levels of sport expertise. AB - To optimize players' tactical abilities, coaches need to design training sessions with representative learning tasks, such as, small-sided games. Moreover, it is necessary to adapt the complexity of the tasks to the skill level of the athletes to maximally improve their perceptual, visual and attentive abilities. The objective of this study was to analyze the effect of two teaching programs, each utilizing modified games with varied levels of opposition, on decision-making and action execution in young players with different levels of sports expertise. 19 football players (U12), separated into two ability groups (Average versus Low skill-level), participated in a series of training sessions that were spread over 4 phases: Pre-intervention 1, Intervention 1 (teaching program based on modified games with numerical superiority in attack), Pre-intervention 2 and Intervention 2 (teaching program based on modified games with numerical equality). Each intervention phase lasted 14 sessions. Decision-making and the execution of pass action during league matches over the same period were evaluated using the Game Performance Evaluation Tool (GPET). The Average skill-level group showed significant differences after the first intervention in decision-making and execution of the pass action (decision-making, p = .015; execution, p = .031), but not after the second intervention (decision-making, p = 1.000; execution, p = 1.000). For the Low skill-level group, significant differences were only observed in the execution of passing between the first and last phases (p = .014). These findings seem to indicate that for groups with an average level of expertise, training with numerical superiority in attack provides players with more time to make better decisions and to better execute actions. However, for lower-level groups programs may take longer to facilitate improvement. Nevertheless, numerical equality did not result in improvement for either group. PMID- 29320518 TI - Increased mitochondrial DNA diversity in ancient Columbia River basin Chinook salmon Oncorhynchus tshawytscha. AB - The Columbia River and its tributaries provide essential spawning and rearing habitat for many salmonid species, including Chinook salmon (Oncorhynchus tshawytscha). Chinook salmon were historically abundant throughout the basin and Native Americans in the region relied heavily on these fish for thousands of years. Following the arrival of Europeans in the 1800s, salmon in the basin experienced broad declines linked to overfishing, water diversion projects, habitat destruction, connectivity reduction, introgression with hatchery-origin fish, and hydropower development. Despite historical abundance, many native salmonids are now at risk of extinction. Research and management related to Chinook salmon is usually explored under what are termed "the four H's": habitat, harvest, hatcheries, and hydropower; here we explore a fifth H, history. Patterns of prehistoric and contemporary mitochondrial DNA variation from Chinook salmon were analyzed to characterize and compare population genetic diversity prior to recent alterations and, thus, elucidate a deeper history for this species. A total of 346 ancient and 366 contemporary samples were processed during this study. Species was determined for 130 of the ancient samples and control region haplotypes of 84 of these were sequenced. Diversity estimates from these 84 ancient Chinook salmon were compared to 379 contemporary samples. Our analysis provides the first direct measure of reduced genetic diversity for Chinook salmon from the ancient to the contemporary period, as measured both in direct loss of mitochondrial haplotypes and reductions in haplotype and nucleotide diversity. However, these losses do not appear equal across the basin, with higher losses of diversity in the mid-Columbia than in the Snake subbasin. The results are unexpected, as the two groups were predicted to share a common history as parts of the larger Columbia River Basin, and instead indicate that Chinook salmon in these subbasins may have divergent demographic histories. PMID- 29320520 TI - Not seeing the grass for the trees: Timber plantations and agriculture shrink tropical montane grassland by two-thirds over four decades in the Palani Hills, a Western Ghats Sky Island. AB - Tropical montane habitats, grasslands, in particular, merit urgent conservation attention owing to the disproportionate levels of endemic biodiversity they harbour, the ecosystem services they provide, and the fact that they are among the most threatened habitats globally. The Shola Sky Islands in the Western Ghats host a matrix of native forest-grassland matrix that has been planted over the last century, with exotic timber plantations. The popular discourse on the landscape change is that mainly forests have been lost to the timber plantations and recent court directives are to restore Shola forest trees. In this study, we examine spatiotemporal patterns of landscape change over the last 40 years in the Palani Hills, a significant part of the montane habitat in the Western Ghats. Using satellite imagery and field surveys, we find that 66% of native grasslands and 31% of native forests have been lost over the last 40 years. Grasslands have gone from being the dominant, most contiguous land cover to one of the rarest and most fragmented. They have been replaced by timber plantations and, to a lesser extent, expanding agriculture. We find that the spatial pattern of grassland loss to plantations differs from the loss to agriculture, likely driven by the invasion of plantation species into grasslands. We identify remnant grasslands that should be prioritised for conservation and make specific recommendations for conservation and restoration of grasslands in light of current management policy in the Palani Hills, which favours large-scale removal of plantations and emphasises the restoration of native forests. PMID- 29320521 TI - CD8+ T cell infiltration in breast and colon cancer: A histologic and statistical analysis. AB - The prevalence of cytotoxic tumor infiltrating lymphocytes (TILs) has demonstrated prognostic value in multiple tumor types. In particular, CD8 counts (in combination with CD3 and CD45RO) have been shown to be superior to traditional UICC staging in colon cancer patients and higher total CD8 counts have been associated with better survival in breast cancer patients. However, immune infiltrate heterogeneity can lead to potentially significant misrepresentations of marker prevalence in routine histologic sections. We examined step sections of breast and colorectal cancer samples for CD8+ T cell prevalence by standard chromogenic immunohistochemistry to determine marker variability and inform practice of T cell biomarker assessment in formalin-fixed, paraffin-embedded (FFPE) tissue samples. Stained sections were digitally imaged and CD8+ lymphocytes within defined regions of interest (ROI) including the tumor and surrounding stroma were enumerated. Statistical analyses of CD8+ cell count variability using a linear model/ANOVA framework between patients as well as between levels within a patient sample were performed. Our results show that CD8+ T-cell distribution is highly homogeneous within a standard tissue sample in both colorectal and breast carcinomas. As such, cytotoxic T cell prevalence by immunohistochemistry on a single level or even from a subsample of biopsy fragments taken from that level can be considered representative of cytotoxic T cell infiltration for the entire tumor section within the block. These findings support the technical validity of biomarker strategies relying on CD8 immunohistochemistry. PMID- 29320522 TI - Do systematic reviews address community healthcare professionals' wound care uncertainties? Results from evidence mapping in wound care. AB - BACKGROUND: Complex wounds such as leg and foot ulcers are common, resource intensive and have negative impacts on patients' wellbeing. Evidence-based decision-making, substantiated by high quality evidence such as from systematic reviews, is widely advocated for improving patient care and healthcare efficiency. Consequently, we set out to classify and map the extent to which up to-date systematic reviews containing robust evidence exist for wound care uncertainties prioritised by community-based healthcare professionals. METHODS: We asked healthcare professionals to prioritise uncertainties based on complex wound care decisions, and then classified 28 uncertainties according to the type and level of decision. For each uncertainty, we searched for relevant systematic reviews. Two independent reviewers screened abstracts and full texts of reviews against the following criteria: meeting an a priori definition of a systematic review, sufficiently addressing the uncertainty, published during or after 2012, and identifying high quality research evidence. RESULTS: The most common uncertainty type was 'interventions' 24/28 (85%); the majority concerned wound level decisions 15/28 (53%) however, service delivery level decisions (10/28) were given highest priority. Overall, we found 162 potentially relevant reviews of which 57 (35%) were not systematic reviews. Of 106 systematic reviews, only 28 were relevant to an uncertainty and 18 of these were published within the preceding five years; none identified high quality research evidence. CONCLUSIONS: Despite the growing volume of published primary research, healthcare professionals delivering wound care have important clinical uncertainties which are not addressed by up-to-date systematic reviews containing high certainty evidence. These are high priority topics requiring new research and systematic reviews which are regularly updated. To reduce clinical and research waste, we recommend systematic reviewers and researchers make greater efforts to ensure that research addresses important clinical uncertainties and is of sufficient rigour to inform practice. PMID- 29320523 TI - Risk of pancreatitis after pancreatic duct guidewire placement during endoscopic retrograde cholangiopancreatography. AB - BACKGROUND & AIMS: Advanced techniques have been developed to overcome difficult cannulation cases in endoscopic retrograde cholangiopancreatography (ERCP). Pancreatic duct guidewire placement method (PGW) is performed in difficult cannulation cases; it is possible that it places patients at risk of post-ERCP pancreatitis (PEP). The mechanism of PEP is still unclear, but pancreatic duct pressure and injury of pancreatic duct are known causes of PEP. Therefore, we hypothesized a relationship between pancreatic duct diameter and PEP and predicted that PGW would increase the risk of PEP in patients with non-dilated pancreatic ducts. This study aimed to investigate whether PGW increased the risk of PEP in patients with pancreatic duct diameter <= 3 mm. METHODS: We analyzed 332 patients with pancreatic duct <= 3 mm who performed first time ERCP session. The primary endpoint was the rate of adverse event of PEP. We evaluated the risk of PEP in patients who had undergone PGW compared to those who had not, using the inverse probability of treatment weighting (IPTW) analysis. RESULTS: PGW was found to be an independent risk factor for PEP by univariate analysis (odds ratio [OR], 2.45; 95% confidence interval [CI], 1.12-5.38; p = 0.03) after IPTW in patients with pancreatic duct diameter <= 3 mm. Adjusted for all covariates, PGW remained an independent risk factor for PEP (OR, 3.12; 95% CI, 1.33-7.33; p = 0.01). CONCLUSION: Our results indicate that PGW in patients with pancreatic duct diameter <= 3 mm increases the risk of PEP. PMID- 29320524 TI - Patients with primary biliary cholangitis and fatigue present with depressive symptoms and selected cognitive deficits, but with normal attention performance and brain structure. AB - BACKGROUND: In primary biliary cholangitis (PBC) fatigue is a major clinical challenge of unknown etiology. By demonstrating that fatigue in PBC is associated with an impaired cognitive performance, previous studies have pointed out the possibility of brain abnormalities underlying fatigue in PBC. Whether structural brain changes are present in PBC patients with fatigue, however, is unclear. To evaluate the role of structural brain abnormalities in PBC patients severely affected from fatigue we, therefore, performed a case-control cerebral magnetic resonance imaging (cMRI) study and correlated changes of white and grey brain matter with the cognitive and attention performance. METHODS: 20 female patients with PBC and 20 female age-matched controls were examined in this study. The assessment of fatigue, psychological symptoms, cognitive and attention performance included clinical questionnaires, established cognition tests and a computerized test battery of attention performance. T1-weighted cMRI and diffusion tensor imaging (DTI) scans were acquired with a 3 Tesla scanner. Structural brain alterations were investigated with voxel-based morphometry (VBM) and DTI analyses. Results were correlated to the cognitive and attention performance. RESULTS: Compared to healthy controls, PBC patients had significantly higher levels of fatigue and associated psychological symptoms. Except for an impairment of verbal fluency, no cognitive or attention deficits were found in the PBC cohort. The VBM and DTI analyses revealed neither major structural brain abnormalities in the PBC cohort nor correlations with the cognitive and attention performance. CONCLUSIONS: Despite the high burden of fatigue and selected cognitive deficits, the attention performance of PBC patients appears to be comparable to healthy people. As structural brain alterations do not seem to be present in PBC patients with fatigue, fatigue in PBC must be regarded as purely functional. Future studies should evaluate, whether functional brain changes underlie fatigue in PBC. PMID- 29320525 TI - Seabird parents provision their chick in a coordinated manner. AB - Pair collaborative behavior may play an important role in avian reproduction. However, evidence for this mainly comes from certain ecological groups (e.g. passerines). We studied the coordination of parents in foraging and its effect on food provisioning rate and chick growth in a small seabird, the Dovekie (Little auk, Alle alle). The species exhibits a dual foraging strategy, where provisioning adults make foraging trips of short (mean ~2 h; to provide food for the chick) and long duration (mean ~ 13 h; mainly for adults self-maintenance, although the food is also brought to the chick). We expected that offspring would benefit if parents coordinate their foraging patterns: one making short trips in the time when the other performing the long one. We examined this hypothesis using Monte Carlo randomization tests on field data collected during observations of individually marked birds. We found that parents did indeed adjust provisioning, making their long and short trips in an alternating pattern with respect to each other. Furthermore, we found that a higher level of coordination is associated with a lower variability in the duration of inter-feeding intervals, although this does not affect chick growth. Nevertheless, our results provide compelling evidence on the coordinated behavior of breeding partners. PMID- 29320526 TI - Temporal and spectral characteristics of dynamic functional connectivity between resting-state networks reveal information beyond static connectivity. AB - Estimation of functional connectivity (FC) has become an increasingly powerful tool for investigating healthy and abnormal brain function. Static connectivity, in particular, has played a large part in guiding conclusions from the majority of resting-state functional MRI studies. However, accumulating evidence points to the presence of temporal fluctuations in FC, leading to increasing interest in estimating FC as a dynamic quantity. One central issue that has arisen in this new view of connectivity is the dramatic increase in complexity caused by dynamic functional connectivity (dFC) estimation. To computationally handle this increased complexity, a limited set of dFC properties, primarily the mean and variance, have generally been considered. Additionally, it remains unclear how to integrate the increased information from dFC into pattern recognition techniques for subject-level prediction. In this study, we propose an approach to address these two issues based on a large number of previously unexplored temporal and spectral features of dynamic functional connectivity. A Generalized Autoregressive Conditional Heteroskedasticity (GARCH) model is used to estimate time-varying patterns of functional connectivity between resting-state networks. Time-frequency analysis is then performed on dFC estimates, and a large number of previously unexplored temporal and spectral features drawn from signal processing literature are extracted for dFC estimates. We apply the investigated features to two neurologic populations of interest, healthy controls and patients with temporal lobe epilepsy, and show that the proposed approach leads to substantial increases in predictive performance compared to both traditional estimates of static connectivity as well as current approaches to dFC. Variable importance is assessed and shows that there are several quantities that can be extracted from dFC signal which are more informative than the traditional mean or variance of dFC. This work illuminates many previously unexplored facets of the dynamic properties of functional connectivity between resting-state networks, and provides a platform for dynamic functional connectivity analysis that facilitates its usage as an investigative measure for healthy as well as abnormal brain function. PMID- 29320527 TI - Transcriptome analysis during ripening of table grape berry cv. Thompson Seedless. AB - Ripening is one of the key processes associated with the development of major organoleptic characteristics of the fruit. This process has been extensively characterized in climacteric fruit, in contrast with non-climacteric fruit such as grape, where the process is less understood. With the aim of studying changes in gene expression during ripening of non-climacteric fruit, an Illumina based RNA-Seq transcriptome analysis was performed on four developmental stages, between veraison and harvest, on table grapes berries cv Thompson Seedless. Functional analysis showed a transcriptional increase in genes related with degradation processes of chlorophyll, lipids, macromolecules recycling and nucleosomes organization; accompanied by a decrease in genes related with chloroplasts integrity and amino acid synthesis pathways. It was possible to identify several processes described during leaf senescence, particularly close to harvest. Before this point, the results suggest a high transcriptional activity associated with the regulation of gene expression, cytoskeletal organization and cell wall metabolism, which can be related to growth of berries and firmness loss characteristic to this stage of development. This high metabolic activity could be associated with an increase in the transcription of genes related with glycolysis and respiration, unexpected for a non-climacteric fruit ripening. PMID- 29320528 TI - Developmental finite element analysis of cichlid pharyngeal jaws: Quantifying the generation of a key innovation. AB - Advances in imaging and modeling facilitate the calculation of biomechanical forces in biological specimens. These factors play a significant role during ontogenetic development of cichlid pharyngeal jaws, a key innovation responsible for one of the most prolific species diversifications in recent times. MicroCT imaging of radiopaque-stained vertebrate embryos were used to accurately capture the spatial relationships of the pharyngeal jaw apparatus in two cichlid species (Haplochromis elegans and Amatitlania nigrofasciata) for the purpose of creating a time series of developmental stages using finite element models, which can be used to assess the effects of biomechanical forces present in a system at multiple points of its ontogeny. Changes in muscle vector orientations, bite forces, force on the neurocranium where cartilage originates, and stress on upper pharyngeal jaws are analyzed in a comparative context. In addition, microCT scanning revealed the presence of previously unreported cement glands in A. nigrofasciata. The data obtained provide an underrepresented dimension of information on physical forces present in developmental processes and assist in interpreting the role of developmental dynamics in evolution. PMID- 29320529 TI - How exogenous nitric oxide regulates nitrogen assimilation in wheat seedlings under different nitrogen sources and levels. AB - Nitrogen (N) is one of the most important nutrients for plants and nitric oxide (NO) as a signaling plant growth regulator involved in nitrogen assimilation. Understanding the influence of exogenous NO on nitrogen metabolism at the gene expression and enzyme activity levels under different sources of nitrogen is vitally important for increasing nitrogen use efficiency (NUE). This study investigated the expression of key genes and enzymes in relation to nitrogen assimilation in two Australian wheat cultivars, a popular high NUE cv. Spitfire and a normal NUE cv. Westonia, under different combinations of nitrogen and sodium nitroprusside (SNP) as the NO donor. Application of NO increased the gene expressions and activities of nitrogen assimilation pathway enzymes in both cultivars at low levels of nitrogen. At high nitrogen supplies, the expressions and activities of N assimilation genes increased in response to exogenous NO only in cv. Spitfire but not in cv. Westonia. Exogenous NO caused an increase in leaf NO content at low N supplies in both cultivars, while under high nitrogen treatments, cv. Spitfire showed an increase under ammonium nitrate (NH4NO3) treatment but cv. Westonia was not affected. N assimilation gene expression and enzyme activity showed a clear relationship between exogenous NO, N concentration and N forms in primary plant nitrogen assimilation. Results reveal the possible role of NO and different nitrogen sources on nitrogen assimilation in Triticum aestivum plants. PMID- 29320530 TI - The amyloid precursor protein derivative, APP96-110, is efficacious following intravenous administration after traumatic brain injury. AB - Following traumatic brain injury (TBI) neurological damage is ongoing through a complex cascade of primary and secondary injury events in the ensuing minutes, days and weeks. The delayed nature of secondary injury provides a valuable window of opportunity to limit the consequences with a timely treatment. Recently, the amyloid precursor protein (APP) and its derivative APP96-110 have shown encouraging neuroprotective activity following TBI following an intracerebroventricular administration. Nevertheless, its broader clinical utility would be enhanced by an intravenous (IV) administration. This study assessed the efficacy of IV APP96-110, where a dose-response for a single dose of 0.005mg/kg- 0.5mg/kg APP96-110 at either 30 minutes or 5 hours following moderate severe diffuse impact-acceleration injury was performed. Male Sprague-Dawley rats were assessed daily for 3 or 7 days on the rotarod to examine motor outcome, with a separate cohort of animals utilised for immunohistochemistry analysis 3 days post-TBI to assess axonal injury and neuroinflammation. Animals treated with 0.05mg/kg or 0.5mg/kg APP96-110 after 30 minutes demonstrated significant improvements in motor outcome. This was accompanied by a reduction in axonal injury and neuroinflammation in the corpus callosum at 3 days post-TBI, whereas 0.005mg/kg had no effect. In contrast, treatment with 0.005m/kg or 0.5mg/kg APP96 110 at 5 hours post-TBI demonstrated significant improvements in motor outcome over 3 days, which was accompanied by a reduction in axonal injury in the corpus callosum. This demonstrates that APP96-110 remains efficacious for up to 5 hours post-TBI when administered IV, and supports its development as a novel therapeutic compound following TBI. PMID- 29320531 TI - Integrating community pharmacy into community based anti-retroviral therapy program: A pilot implementation in Abuja, Nigeria. AB - BACKGROUND: The landscape of Human Immunodeficiency Virus (HIV) epidemic control is shifting with the United Nations Programme on HIV/AIDS (UNAIDS) 90-90-90 benchmarks for epidemic control. Community-based Antiretroviral Therapy (CART) models have improved treatment uptake and demonstrated good clinical outcomes. We assessed the feasibility of integrating community pharmacy as a task shift structure for differentiated community ART in Abuja-Nigeria. METHODS: Stable patients on first line ART regimens from public health facilities were referred to community pharmacies in different locations within the Federal Capital Territory, Abuja for prescription refills and treatment maintenance. Bio demographic and clinical data were collected from February 25, 2016 to May 31st, 2017 and descriptive statistics analysis applied. The outcomes of measure were prescription refill and patient retention in care at the community pharmacy. RESULTS: Almost 10% of stable patients on treatment were successfully devolved from eight health facilities to ten community pharmacies. Median age of the participants was 35 years [interquartile range (IQR); 30, 41] with married women in the majority. Prescription refill was 100% and almost all the participants (99.3%) were retained in care after they were devolved to the community pharmacies. Only one participant was lost-to-follow-up as a result of death. CONCLUSION: Excellent prescription refill and high retention in care with very low loss-to-follow-up were associated with the community pharmacy model. The use of community pharmacy for community ART is feasible in Nigeria. We recommend the scale up of the model in all the 36 states of Nigeria. PMID- 29320532 TI - Automatic outer and inner breast tissue segmentation using multi-parametric MRI images of breast tumor patients. AB - The objectives of the study were to develop a framework for automatic outer and inner breast tissue segmentation using multi-parametric MRI images of the breast tumor patients; and to perform breast density and tumor tissue analysis. MRI of the breast was performed on 30 patients at 3T-MRI. T1, T2 and PD-weighted(W) images, with and without fat saturation(WWFS), and dynamic-contrast-enhanced(DCE) MRI data were acquired. The proposed automatic segmentation approach was performed in two steps. In step-1, outer segmentation of breast tissue from rest of body parts was performed on structural images (T2-W/T1-W/PD-W without fat saturation images) using automatic landmarks detection technique based on operations like profile screening, Otsu thresholding, morphological operations and empirical observation. In step-2, inner segmentation of breast tissue into fibro-glandular(FG), fatty and tumor tissue was performed. For validation of breast tissue segmentation, manual segmentation was carried out by two radiologists and similarity coefficients(Dice and Jaccard) were computed for outer as well as inner tissues. FG density and tumor volume were also computed and analyzed. The proposed outer and inner segmentation approach worked well for all the subjects and was validated by two radiologists. The average Dice and Jaccard coefficients value for outer segmentation using T2-W images, obtained by two radiologists, were 0.977 and 0.951 respectively. These coefficient values for FG tissue were 0.915 and 0.875 respectively whereas for tumor tissue, values were 0.968 and 0.95 respectively. The volume of segmented tumor ranged over 2.1 cm3 7.08 cm3. The proposed approach provided automatic outer and inner breast tissue segmentation, which enables automatic calculations of breast tissue density and tumor volume. This is a complete framework for outer and inner breast segmentation method for all structural images. PMID- 29320533 TI - What makes a rhythm complex? The influence of musical training and accent type on beat perception. AB - Perception of a regular beat in music is inferred from different types of accents. For example, increases in loudness cause intensity accents, and the grouping of time intervals in a rhythm creates temporal accents. Accents are expected to occur on the beat: when accents are "missing" on the beat, the beat is more difficult to find. However, it is unclear whether accents occurring off the beat alter beat perception similarly to missing accents on the beat. Moreover, no one has examined whether intensity accents influence beat perception more or less strongly than temporal accents, nor how musical expertise affects sensitivity to each type of accent. In two experiments, we obtained ratings of difficulty in finding the beat in rhythms with either temporal or intensity accents, and which varied in the number of accents on the beat as well as the number of accents off the beat. In both experiments, the occurrence of accents on the beat facilitated beat detection more in musical experts than in musical novices. In addition, the number of accents on the beat affected beat finding more in rhythms with temporal accents than in rhythms with intensity accents. The effect of accents off the beat was much weaker than the effect of accents on the beat and appeared to depend on musical expertise, as well as on the number of accents on the beat: when many accents on the beat are missing, beat perception is quite difficult, and adding accents off the beat may not reduce beat perception further. Overall, the different types of accents were processed qualitatively differently, depending on musical expertise. Therefore, these findings indicate the importance of designing ecologically valid stimuli when testing beat perception in musical novices, who may need different types of accent information than musical experts to be able to find a beat. Furthermore, our findings stress the importance of carefully designing rhythms for social and clinical applications of beat perception, as not all listeners treat all rhythms alike. PMID- 29320534 TI - The endothelial specific isoform of type XVIII collagen correlates to annual bleeding rate in haemophilia patients. AB - INTRODUCTION: The medical need in the haemophilic (HF) field to reduce bleeding incidents requires measurement of the annual bleeding rate (ABR) in haemophiliacs. Vascular rupture is associated with damage to the vascular endothelium causing exposure of the basement membrane. Endothelial cells and matrix impairment may be associated with joint bleeds and later development of HF arthropathy. Imbalanced extracellular matrix turnover is a central pathological feature in many diseases consequent to epithelial or endothelial cell damage. Type XVIII collagen is an essential basement membrane component, with an endothelial specific isoform. AIM: To quantify the basement membrane specifically for the endothelial cells, as that may have particular relevance to endothelial cell stability and rupture in haemophiliacs. A newly developed ELISA assay detecting endothelial type XVIII collagen (COL-18N) was used to assess the clinical relevance of endothelial basement membrane turnover in patients diagnosed with HF arthropathy and correlation to ABR. METHODS: We developed an ELISA assay for quantification of COL-18N. Serum from 35 male HF patients was investigated using the COL-18N ELISA. RESULTS: COL-18N correlated to the ABR of haemophiliacs, r = 0.45, P<0.006. CONCLUSION: Vascular rupture and consequent bleeding are associated with joint damage and deterioration of life quality in haemophiliacs. Quantification of ABR is an important part in efficacy assessment of different interventions, and the benchmark of these. Objective biomarkers reflecting endothelial dysfunction, vascular leaks and rupture, like the COL-18N biomarker that associate with ABR, may assist in identifying the most optimal treatment and monitoring of HF patients. PMID- 29320535 TI - Rhombic organization of microvilli domains found in a cell model of the human intestine. AB - Symmetry is rarely found on cellular surfaces. An exception is the brush border of microvilli, which are essential for the proper function of transport epithelia. In a healthy intestine, they appear densely packed as a 2D-hexagonal lattice. For in vitro testing of intestinal transport the cell line Caco-2 has been established. As reported by electron microscopy, their microvilli arrange primarily in clusters developing secondly into a 2D-hexagonal lattice. Here, atomic force microscopy (AFM) was employed under aqueous buffer conditions on Caco-2 cells, which were cultivated on permeable filter membranes for optimum differentiation. For analysis, the exact position of each microvillus was detected by computer vision; subsequent Fourier transformation yielded the type of 2D-lattice. It was confirmed, that Caco-2 cells can build a hexagonal lattice of microvilli and form clusters. Moreover, a second type of arrangement was discovered, namely a rhombic lattice, which appeared at sub-maximal densities of microvilli with (29 +/- 4) microvilli / MUm2. Altogether, the findings indicate the existence of a yet undescribed pattern in cellular organization. PMID- 29320536 TI - Socio-economic and demographic determinants affecting participation in the Swedish cervical screening program: A population-based case-control study. AB - BACKGROUND: Cervical screening programs are highly protective for cervical cancer, but only for women attending screening procedure. OBJECTIVE: Identify socio-economic and demographic determinants for non-attendance in cervical screening. METHODS: Design: Population-based case-control study. Setting: Sweden. Population: Source population was all women eligible for screening. Based on complete screening records, two groups of women aged 30-60 were compared. The case group, non-attending women, (N = 314,302) had no smear registered for 6-8 years. The control group (N = 266,706) attended within 90 days of invitation. Main outcome measures: Risk of non-attendance by 9 groups of socioeconomic and demographic variables. Analysis: Unadjusted odds ratios (OR) and OR after adjustment for all variables in logistic regression models were calculated. RESULTS: Women with low disposable family income (adjOR 2.06; 95% confidence interval (CI) 2.01-2.11), with low education (adjOR 1.77; CI 1.73-1.81) and not cohabiting (adjOR 1.47; CI 1.45-1.50) were more likely to not attend cervical screening. Other important factors for non-attendance were being outside the labour force and receiving welfare benefits. Swedish counties are responsible for running screening programs; adjusted OR for non-participation in counties ranged from OR 4.21 (CI 4.06-4.35) to OR 0.54 (CI 0.52-0.57), compared to the reference county. Being born outside Sweden was a risk factor for non-attendance in the unadjusted analysis but this disappeared in certain large groups after adjustment for socioeconomic factors. CONCLUSION: County of residence and socio-economic factors were strongly associated with lower attendance in cervical screening, while being born in another country was of less importance. This indicates considerable potential for improvement of cervical screening attendance in several areas if best practice of routines is adopted. PMID- 29320537 TI - Correlation of a new index reflecting the fluctuation of parasympathetic tone and fetal acidosis in an experimental study in a sheep model. AB - The autonomic nervous system plays a leading role in the control of fetal homeostasis. Fetal heart rate variability (HRV) analysis is a reflection of its activity. We developed a new index (the Fetal Stress Index, FSI) reflecting parasympathetic tone. The objective of this study was to evaluate this index as a predictor of fetal acid-base status. This was an experimental study on chronically instrumented fetal lambs (n = 11, surgery at 128 +/- 2 days gestational age, term = 145 days). The model was based on 75% occlusion of the umbilical cord for a maximum of 120 minutes or until an arterial pH <= 7.20 was reached. Hemodynamic, gasometric and FSI parameters were recorded throughout the experimentation. We studied the FSI during the 10 minutes prior to pH samplings and compared values for pH>7.20 and pH<= 7.20. In order to analyze the FSI evolution during the 10 minutes periods, we analyzed the minimum, maximum and mean values of the FSI (respectively FSImin, FSImax and FSImean) over the periods. 11 experimentations were performed. During occlusion, the heart rate dropped with an increase in blood pressure (respectively 160(155-182) vs 106(101 120) bpm and 42(41-45) vs 58(55-62) mmHg after occlusion). The FSImin was 38.6 (35.2-43.3) in the group pH>7.20 and was higher in the group pH less than 7.20 (46.5 (43.3-52.0), p = 0.012). The correlation of FSImin was significant for arterial pH (coefficient of -0.671; p = 0.004) and for base excess (coefficient of -0.632; p = 0.009). The correlations were not significant for the other parameters. In conclusion, our new index seems well correlated with the fetal acid-base status. Other studies must be carried out in a situation close to the physiology of labor by sequential occlusion of the cord. PMID- 29320538 TI - Germline and somatic variant identification using BGISEQ-500 and HiSeq X Ten whole genome sequencing. AB - Technological innovation and increased affordability have contributed to the widespread adoption of genome sequencing technologies in biomedical research. In particular large cancer research consortia have embraced next generation sequencing, and have used the technology to define the somatic mutation landscape of multiple cancer types. These studies have primarily utilised the Illumina HiSeq platforms. In this study we performed whole genome sequencing of three malignant pleural mesothelioma and matched normal samples using a new platform, the BGISEQ-500, and compared the results obtained with Illumina HiSeq X Ten. Germline and somatic, single nucleotide variants and small insertions or deletions were independently identified from data aligned human genome reference. The BGISEQ-500 and HiSeq X Ten platforms showed high concordance for germline calls with genotypes from SNP arrays (>99%). The germline and somatic single nucleotide variants identified in both sequencing platforms were highly concordant (86% and 72% respectively). These results indicate the potential applicability of the BGISEQ-500 platform for the identification of somatic and germline single nucleotide variants by whole genome sequencing. The BGISEQ-500 datasets described here represent the first publicly-available cancer genome sequencing performed using this platform. PMID- 29320539 TI - The impact of electronic consultation on a Canadian tertiary care pediatric specialty referral system: A prospective single-center observational study. AB - BACKGROUND: Champlain BASETM (Building Access to Specialists through eConsultation) is a web-based asynchronous electronic communication service that allows primary-care- practitioners (PCPs) to submit "elective" clinical questions to a specialist. For adults, PCPs have reported improved access and timeliness to specialist advice, averted face-to-face specialist referrals in up to 40% of cases and high provider satisfaction. OBJECTIVE: To determine whether the expansion of eConsult to a pediatric setting would result in similar measures of improved healthcare system process and high provider acceptance reported in adults. DESIGN: Prospective observational cohort study. SETTING: Single Canadian tertiary-care academic pediatric hospital (June 2014-16) servicing 1.2 million people. PARTICIPANTS: 1. PCPs already using eConsult. 2.Volunteer pediatric specialists provided services in addition to their regular workload. 3.Pediatric patients (< 18 years-old) referred for none-acute care conditions. MAIN OUTCOMES AND MEASURES: Specialty service utilization and access, impact on PCP course-of action and referral-patterns and survey-based provider satisfaction data were collected. RESULTS: 1064 eConsult requests from 367 PCPs were answered by 23 pediatric specialists representing 14 specialty-services. The top three specialties represented were: General Pediatrics 393 cases (36.9%), Orthopedics 162 (15.2%) and Psychiatry 123 (11.6%). Median specialist response time was 0.9 days (range <1 hour-27 days), most consults (63.2%) required <10minutes to complete and 21/21(100%) specialist survey-respondents reported minimal workload burden. For 515/1064(48.4%) referrals, PCPs received advice for a new or additional course of action; 391/1064(36.7%) referrals resulted in an averted face-to-face specialist visit. In 9 specialties with complete data, the median wait-time was significantly less (p<0.001) for an eConsult (1 day, 95%CI:0.9-1.2) compared with a face-to-face referral (132 days; 95%CI:127-136). The majority (>93.3%) of PCPs rated eConsult as very good/excellent value for both patients and themselves. All specialist survey-respondents indicated eConsult should be a continued service. CONCLUSIONS AND RELEVANCE: Similar to adults, eConsult improves PCP access and timeliness to elective pediatric specialist advice and influences their care decisions, while reporting high end-user satisfaction. Further study is warranted to assess impact on resource utilization and clinical outcomes. PMID- 29320540 TI - Discerning suicide in drug intoxication deaths: Paucity and primacy of suicide notes and psychiatric history. AB - OBJECTIVE: A paucity of corroborative psychological and psychiatric evidence may be inhibiting detection of drug intoxication suicides in the United States. We evaluated the relative importance of suicide notes and psychiatric history in the classification of suicide by drug intoxication versus firearm (gunshot wound) plus hanging/suffocation-the other two major, but overtly violent methods. METHODS: This observational multilevel (individual/county), multivariable study employed a generalized linear mixed model (GLMM) to analyze pooled suicides and undetermined intent deaths, as possible suicides, among the population aged 15 years and older in the 17 states participating in the National Violent Death Reporting System throughout 2011-2013. The outcome measure was relative odds of suicide versus undetermined classification, adjusted for demographics, precipitating circumstances, and investigation characteristics. RESULTS: A suicide note, prior suicide attempt, or affective disorder was documented in less than one-third of suicides and one-quarter of undetermined deaths. The prevalence gaps were larger among drug intoxication cases than gunshot/hanging cases. The latter were more likely than intoxication cases to be classified as suicide versus undetermined manner of death (adjusted odds ratio [OR], 41.14; 95% CI, 34.43-49.15), as were cases documenting a suicide note (OR, 33.90; 95% CI, 26.11 44.05), prior suicide attempt (OR, 2.42; 95% CI, 2.11-2.77), or depression (OR, 1.61; 95% CI, 1.38 to 1.88), or bipolar disorder (OR, 1.41; 95% CI, 1.10-1.81). Stratification by mechanism/cause intensified the association between a note and suicide classification for intoxication cases (OR, 45.43; 95% CI, 31.06-66.58). Prior suicide attempt (OR, 2.64; 95% CI, 2.19-3.18) and depression (OR, 1.48; 95% CI, 1.17-1.87) were associated with suicide classification in intoxication but not gunshot/hanging cases. CONCLUSIONS: Without psychological/psychiatric evidence contributing to manner of death classification, suicide by drug intoxication in the US is likely profoundly under-reported. Findings harbor adverse implications for surveillance, etiologic understanding, and prevention of suicides and drug deaths. PMID- 29320541 TI - Agent-based modeling of the interaction between CD8+ T cells and Beta cells in type 1 diabetes. AB - We propose an agent-based model for the simulation of the autoimmune response in T1D. The model incorporates cell behavior from various rules derived from the current literature and is implemented on a high-performance computing system, which enables the simulation of a significant portion of the islets in the mouse pancreas. Simulation results indicate that the model is able to capture the trends that emerge during the progression of the autoimmunity. The multi-scale nature of the model enables definition of rules or equations that govern cellular or sub-cellular level phenomena and observation of the outcomes at the tissue scale. It is expected that such a model would facilitate in vivo clinical studies through rapid testing of hypotheses and planning of future experiments by providing insight into disease progression at different scales, some of which may not be obtained easily in clinical studies. Furthermore, the modular structure of the model simplifies tasks such as the addition of new cell types, and the definition or modification of different behaviors of the environment and the cells with ease. PMID- 29320542 TI - Ancient mitogenomes of Phoenicians from Sardinia and Lebanon: A story of settlement, integration, and female mobility. AB - The Phoenicians emerged in the Northern Levant around 1800 BCE and by the 9th century BCE had spread their culture across the Mediterranean Basin, establishing trading posts, and settlements in various European Mediterranean and North African locations. Despite their widespread influence, what is known of the Phoenicians comes from what was written about them by the Greeks and Egyptians. In this study, we investigate the extent of Phoenician integration with the Sardinian communities they settled. We present 14 new ancient mitogenome sequences from pre-Phoenician (~1800 BCE) and Phoenician (~700-400 BCE) samples from Lebanon (n = 4) and Sardinia (n = 10) and compare these with 87 new complete mitogenomes from modern Lebanese and 21 recently published pre-Phoenician ancient mitogenomes from Sardinia to investigate the population dynamics of the Phoenician (Punic) site of Monte Sirai, in southern Sardinia. Our results indicate evidence of continuity of some lineages from pre-Phoenician populations suggesting integration of indigenous Sardinians in the Monte Sirai Phoenician community. We also find evidence of the arrival of new, unique mitochondrial lineages, indicating the movement of women from sites in the Near East or North Africa to Sardinia, but also possibly from non-Mediterranean populations and the likely movement of women from Europe to Phoenician sites in Lebanon. Combined, this evidence suggests female mobility and genetic diversity in Phoenician communities, reflecting the inclusive and multicultural nature of Phoenician society. PMID- 29320543 TI - Distinct expression of functionally glycosylated alpha-dystroglycan in muscle and non-muscle tissues of FKRP mutant mice. AB - The glycosylation of alpha-dystroglycan (alpha-DG) is crucial in maintaining muscle cell membrane integrity. Dystroglycanopathies are identified by the loss of this glycosylation leading to a breakdown of muscle cell membrane integrity and eventual degeneration. However, a small portion of fibers expressing functionally glycosylated alpha-DG (F-alpha-DG) (revertant fibers, RF) have been identified. These fibers are generally small in size, centrally nucleated and linked to regenerating fibers. Examination of different muscles have shown various levels of RFs but it is unclear the extent of which they are present. Here we do a body-wide examination of muscles from the FKRP-P448L mutant mouse for the prevalence of RFs. We have identified great variation in the distribution of RF in different muscles and tissues. Triceps shows a large increase in RFs and together with centrally nucleated fibers whereas the pectoralis shows a reduction in revertant but increase in centrally nucleated fibers from 6 weeks to 6 months of age. We have also identified that the sciatic nerve with near normal levels of F-alpha-DG in the P448Lneo- mouse with reduced levels in the P448Lneo+ and absent in LARGEmyd. The salivary gland of LARGEmyd mice expresses high levels of F-alpha DG. Interestingly the same glands in the P448Lneo-and to a lesser degree in P448Lneo+ also maintain considerable amount of F-alpha-DG, indicating the non proliferating epithelial cells have a molecular setting permitting glycosylation. PMID- 29320544 TI - Diversity patterns, Leishmania DNA detection, and bloodmeal identification of Phlebotominae sand flies in villages in northern Colombia. AB - Leishmaniases are neglected tropical diseases exhibiting complex transmission cycles due to the number of parasite species circulating, sand fly species acting as vectors and infected mammals, including humans, which are defined in the New World as accidental hosts. However, current transmission scenarios are changing, and the disease is no longer exclusively related to forested areas but urban transmission foci occur, involving some species of domestic animals as suspected reservoirs. The aim of this study was to determine the transmission cycles in urban environments by evaluating sand fly diversity, detection of Leishmania DNA, and bloodmeal sources through intra and peridomestic collections. The study was carried out in Colombia, in 13 municipalities of Cordoba department, implementing a methodology that could be further used for the evaluation of vector-borne diseases in villages or towns. Our sampling design included 24 houses randomly selected in each of 15 villages distributed in 13 municipalities, which were sampled in two seasons in 2015 and 2016. Sand flies were collected using CDC light traps placed in intra and peridomestic habitats. In addition to the morphological identification, molecular identification through DNA barcodes was also performed. A total of 19,743 sand flies were collected and 13,848 of them (10,268 females and 3,580 males) were used in molecular procedures. Circulation of two known parasite species-Leishmania infantum and Leishmania panamensis was confirmed. Blood source analyses showed that sand flies fed on humans, particularly in the case of the known L. infantum vector, P. evansi; further analyses are advised to evaluate the reservoirs involved in parasite transmission. Our sampling design allowed us to evaluate potential transmission cycles on a department scale, by defining suspected vector species, parasite species present in different municipalities and feeding habits. PMID- 29320545 TI - Adaptation and validation of the Spanish version of the ORTO-15 questionnaire for the diagnosis of orthorexia nervosa. AB - The aim of this study was the validation and analysis of the psychometric properties of a Spanish translation of the ORTO-15 questionnaire; an instrument designed to assess orthorexia nervosa behavior. Four hundred and fifty-four Spanish university students (65% women) aged between 18 and 51 years (M = 21.48 +/- 0.31) completed the Spanish version of ORTO-15 and the Eating Disorders Inventory-2 (EDI-2). The Principal Component Analysis suggested a three-factor structure for the abbreviated 11-item version of the instrument. The internal consistency of the measurement was adequate (Cronbach's alpha = 0.80). The proposed test demonstrated a good predictive capacity at a threshold value of <25 (efficiency 84%, sensitivity 75% and specificity 84%). Our results support the psychometric properties of the proposed Spanish shortened-version of the ORTO-15 as being a reliable tool for assessing orthorexia nervosa. Its use is expected to greatly contribute to a better understanding of the impact of this disorder in Spain. PMID- 29320546 TI - RPA and XPA interaction with DNA structures mimicking intermediates of the late stages in nucleotide excision repair. AB - Replication protein A (RPA) and the xeroderma pigmentosum group A (XPA) protein are indispensable for both pathways of nucleotide excision repair (NER). Here we analyze the interaction of RPA and XPA with DNA containing a flap and different size gaps that imitate intermediates of the late NER stages. Using gel mobility shift assays, we found that RPA affinity for DNA decreased when DNA contained both extended gap and similar sized flap in comparison with gapped-DNA structure. Moreover, crosslinking experiments with the flap-gap DNA revealed that RPA interacts mainly with the ssDNA platform within the long gap and contacts flap in DNA with a short gap. XPA exhibits higher affinity for bubble-DNA structures than to flap-gap-containing DNA. Protein titration analysis showed that formation of the RPA-XPA-DNA ternary complex depends on the protein concentration ratio and these proteins can function as independent players or in tandem. Using fluorescently-labelled RPA, direct interaction of this protein with XPA was detected and characterized quantitatively. The data obtained allow us to suggest that XPA can be involved in the post-incision NER stages via its interaction with RPA. PMID- 29320548 TI - Primed for death: Law enforcement-citizen homicides, social media, and retaliatory violence. AB - We examine whether retaliatory violence exists between law enforcement and citizens while controlling for any social media contagion effect related to prior fatal encounters. Analyzed using a trivariate dynamic structural vector autoregressive model, daily time-series data over a 21-month period captured the frequencies of police killed in the line of duty, police deadly use of force incidents, and social media coverage. The results support a significant retaliatory violence effect against minorities by police, yet there is no evidence of retaliatory violence against law enforcement officers by minorities. Also, social media coverage of the Black Lives Matter movement increases the risk of fatal victimization to both law enforcement officers and minorities. Possible explanations for these results are based in rational choice and terror management theories. PMID- 29320547 TI - Dyslipidemia, chronic inflammation, and subclinical atherosclerosis in children and adolescents infected with HIV: The PositHIVe Health Study. AB - HIV-infected children and adolescents may be at risk for cardiovascular disease due to chronic inflammation and exacerbation of risk factors. The aim of this study was as follows: 1) compare cardiovascular risk factors, chronic inflammation, and carotid intima-media thickness (IMTc) between the HIV and control groups; 2) determine the association of HIV and antiretroviral (ART) regimens with cardiovascular risk factors, chronic inflammation, and IMTc; and 3) identify variables associated with elevated IMTc. Cross-sectional analysis of 130 children and adolescents, 8-15 years of age, divided into HIV-infected (n = 65) and healthy control (n = 65) participants. Body fat, blood pressure, glycemia, insulin, and glycated hemoglobin, total cholesterol and fractions (LDL-C and HDL C), triglycerides, C-reactive protein (CRP), interleukin (IL)-6, tumor necrosis factor-alpha (TNF-alpha), and the IMTc were measured. The results showed HIV infected children and adolescents had higher levels of glycemia (87.9 vs. 75.9 mg.dL-1, p< 0.001), LDL-c (94.7 vs. 79.5 mg.dL-1, p = 0.010), triglycerides (101.2 vs. 61.6 mg.dL-1, p< 0.001), CRP (1.6 vs. 1.0 mg.L-1, p = 0.007), IL-6 (1.42 vs. 0.01 pg.mL-1, p< 0.001), TNF-alpha (0.49 vs. 0.01 pg.mL-1, p< 0.001), mean IMTc (0.526 vs. 0.499 mm, p = 0.009), and lower HDL-c (53.7 vs. 69.4 mg.dL 1, p< 0.001) compared to controls. Systolic blood pressure (beta = 0.006, p = 0.004) and TNF-alpha (beta = -0.033, p = 0.029) accounted for 16% of IMTc variability in HIV-infected children and adolescents. In patients using protease inhibitors-based ART, male gender (beta = -0.186, p = 0.008), trunk body fat (beta = -0.011, p = 0.006), glucose (beta = 0.005, p = 0.046), and IL-6 (beta = 0.017, p = 0.039) accounted for 28% of IMTc variability. HIV-infected children and adolescents may be at risk for premature atherosclerosis due to chronic inflammation and dyslipidemia. Interventions with the potential to improve lipid profile, mitigate inflammation, and reduce cardiovascular risk are needed. PMID- 29320550 TI - Longitudinal micro-CT as an outcome measure of interstitial lung disease in TNF transgenic mice. AB - INTRODUCTION: Rheumatoid arthritis associated interstitial lung disease (RA-ILD) is a debilitating condition with poor survival prognosis. High resolution computed tomography (CT) is a common clinical tool to diagnose RA-ILD, and is increasingly being adopted in pre-clinical studies. However, murine models recapitulating RA-ILD are lacking, and CT outcomes for inflammatory lung disease have yet to be formally validated. To address this, we validate MUCT outcomes for ILD in the tumor necrosis factor transgenic (TNF-Tg) mouse model of RA. METHODS: Cross sectional MUCT was performed on cohorts of male TNF-Tg mice and their WT littermates at 3, 4, 5.5 and 12 months of age (n = 4-6). Lung MUCT outcomes measures were determined by segmentation of the MUCT datasets to generate Aerated and Tissue volumes. After each scan, lungs were obtained for histopathology and 3 sections stained with hematoxylin and eosin. Automated histomorphometry was performed to quantify the tissue area (nuclei, cytoplasm, and extracellular matrix) and aerated area (white space) within the tissue sections. Spearman's correlation coefficients were used to evaluate the extent of association between MUCT imaging and histopathology endpoints. RESULTS: TNF-Tg mice had significantly greater tissue volume, total lung volume and mean intensity at all timepoints compared to age matched WT littermates. Histomorphometry also demonstrated a significant increase in tissue area at 3, 4, and 5.5 months of age in TNF-Tg mice. Lung tissue volume was correlated with lung tissue area (rho = 0.81, p<0.0001), and normalize lung aerated volume was correlated with normalized lung air area (rho = 0.73, p<0.0001). CONCLUSIONS: We have validated in vivo MUCT as a quantitative biomarker of ILD in mice. Further, development of longitudinal measures is critical for dissecting pathologic progression of ILD, and MUCT is a useful non-invasive method to study lung inflammation in the TNF-Tg mouse model. PMID- 29320549 TI - Assessing adverse effects of intra-articular botulinum toxin A in healthy Beagle dogs: A placebo-controlled, blinded, randomized trial. AB - OBJECTIVE: To investigate the clinical, cytological, and histopathological adverse effects of intra-articularly injected botulinum toxin A in dogs and to study whether the toxin spreads from the joint after the injection. METHODS: A longitudinal, placebo-controlled, randomized clinical trial was conducted with six healthy laboratory Beagle dogs. Stifle joints were randomized to receive either 30 IU of onabotulinum toxin A or placebo in a 1:1 ratio. Adverse effects and spread of the toxin were examined by evaluating dynamic and static weight bearing of the injected limbs, by assessing painless range of motion and pain on palpation of joints, and by performing synovial fluid analysis, neurological examination, and electrophysiological recordings at different examination time points in a 12-week period after the injections. The dogs were then euthanized and autopsy and histopathological examination of joint structures and adjacent muscles and nerves were performed. RESULTS: Intra-articular botulinum toxin A did not cause local weakness or injection site pain. Instead, static weight-bearing and painless range of motion of stifle joints decreased in the placebo limbs. No clinically significant abnormalities associated with intra-articular botulinum toxin A were detected in the neurological examinations. Electrophysiological recordings showed low compound muscle action potentials in two dogs in the botulinum toxin A-injected limb. No significant changes were detected in the synovial fluid. Autopsy and histopathological examination of the joint and adjacent muscles and nerves did not reveal histopathological adverse effects of the toxin. CONCLUSION: Intra-articular botulinum toxin A does not produce significant clinical, cytological, or histopathological adverse effects in healthy dogs. Based on the electrophysiological recordings, the toxin may spread from the joint, but its clinical impact seems to be low. PMID- 29320551 TI - Are oral deformities in tadpoles accurate indicators of anuran chytridiomycosis? AB - We evaluated the use of oral deformities as reliable proxies for determining Batrachochytrium dendrobatidis (Bd) infection in tadpoles of six anuran species of the Atlantic Forest in southeastern Brazil. We examined oral discs of 2156 tadpoles of six species of anurans collected in 2016: Aplastodiscus albosignatus, Boana albopunctata, Boana faber, Scinax hayii, Crossodactylus caramaschii, and Physalaemus cuvieri. Three oral deformities were recognized: lack of keratinization only in upper and/or lower jaw sheaths, lack of keratinization only in upper or lower tooth rows, and both deformities together. A subsample composed of all the individuals possessing oral deformities (N = 195) plus randomly selected individuals without oral deformities (N = 184) were tested for Bd via qPCR. Oral deformities were observed in all six species, but only five were infected with Bd. Since we found that dekeratinization of tooth rows was not associated with the presence of Bd in any of the studied species we used a new proxy (jaw sheaths dekeratinization with or without dekeratinization in tooth rows: JSD-proxy) for Bd detection. Our results showed a nonrandom relationship between Bd infection and JSD-proxy in three species of the family Hylidae. However, the use of JSD-proxy for Bd detection in these species resulted in up to 30.8% false positives and up to 29.3% false negatives. The use of the JSD-proxy in species for which no relationship was found reached 100% of false positives. We conclude that the use of oral dekeratinization as a generalized proxy for Bd detection in tadpoles should not be used as a single diagnosis technique. PMID- 29320552 TI - First report of occult hepatitis B infection among ART naive HIV seropositive individuals in Maputo, Mozambique. AB - BACKGROUND: The prevalence of hepatitis B virus (HBV) infection and human immunodeficiency virus (HIV) infection in Mozambique is one of the highest in the world, though in spite of this the prevalence of occult hepatitis B infection (OBI) is unknown. OBJECTIVES: This study was conducted with the aim to investigate the prevalence of OBI and frequency of isolated hepatitis B core antibody (anti-HBc alone) among antiretroviral (ART) naive HIV-positive patients in Mozambique. METHODS: A cross-sectional study was conducted in two health facilities within Maputo city. All ART-naive HIV seropositive patients attending outpatient clinics between June and October 2012 were consecutively enrolled. Blood samples were drawn from each participant and used for serological measurement of HBV surface antigen (HBsAg), antibodies against HBV surface antigen (anti-HBs) and antibodies against core antigen (anti-HBc) using ELISA. Quantification of HBV DNA was performed by real time PCR. A questionnaire was used to obtain demographics and clinical data. RESULTS: Of the 518 ART-naive HIV positive subjects enrolled in the study, 90.9% (471/518) were HBsAg negative. Among HBsAg negative, 45.2% (213/471) had isolated anti-HBc antibodies, and the frequency of OBI among patients with anti-HBc alone was 8.3% (17/206). OBI was not correlated either with CD4+ T cells count or transaminases levels. A total of 11.8% of patients with OBI presented elevated HBV DNA level. Frequency of individuals with APRI score > 2 and FIB-4 score > 3.25 was higher in patients with OBI as compared not exposed, immune and anti-HBc alone patients. CONCLUSION: Our data demonstrate for the first time that OBI is prevalent among HIV patients in Mozambique, and will be missed using the commonly available serological assays that measures HBsAg. PMID- 29320553 TI - Undiagnosed abnormal postpartum blood loss: Incidence and risk factors. AB - BACKGROUND: We aimed to evaluate the incidence of undiagnosed abnormal postpartum blood loss (UPPBL) after vaginal delivery, identify the risk factors and compare them to those of postpartum haemorrhage (PPH). METHOD: The study population included women who participated in a randomized controlled trial of women with singleton low-risk pregnancy who delivered vaginally after 35 weeks' gestation (n = 3917). Clinical PPH was defined as postpartum blood loss >= 500 mL measured by using a collector bag and UPPBL was defined by a peripartum change in haemoglobin >= 2 g/dL in the absence of clinical PPH. Risk factors were assessed by multivariate multinomial logistic regression. RESULTS: The incidence of UPPBL and PPH was 11.2% and 11.0% of vaginal deliveries, respectively. The median peripartum change in Hb level was comparable between UPPBL and PPH groups (2.5 g/dL interquartile range [2.2-3.0] and 2.4 g/dL IQR [1.5-3.3]). Risk factors specifically associated with UPPBL were Asian geographical origin (adjusted OR [aOR] 2.3, 95% confidence interval [CI] 1.2-4.2; p = 0.009), previous caesarean section (aOR 3.4, 2.1-5.5; p<0.001) and episiotomy (aOR 2.6, 1.8-3.6; p<0.001). Risk factors for both UPPBL and PPH were primiparity, long duration of labour, instrumental delivery and retained placenta. CONCLUSION: Undiagnosed abnormal postpartum blood loss is frequent among women giving birth vaginally and has specific risk factors. The clinical importance of this entity needs further confirmation, and the benefit of systematic or targeted prevention strategies needs to be assessed. PMID- 29320554 TI - A census of P. longum's phytochemicals and their network pharmacological evaluation for identifying novel drug-like molecules against various diseases, with a special focus on neurological disorders. AB - Piper longum (P. longum, also called as long pepper) is one of the common culinary herbs that has been extensively used as a crucial constituent in various indigenous medicines, specifically in traditional Indian medicinal system known as Ayurveda. For exploring the comprehensive effect of its constituents in humans at proteomic and metabolic levels, we have reviewed all of its known phytochemicals and enquired about their regulatory potential against various protein targets by developing high-confidence tripartite networks consisting of phytochemical-protein target-disease association. We have also (i) studied immunomodulatory potency of this herb; (ii) developed subnetwork of human PPI regulated by its phytochemicals and could successfully associate its specific modules playing important role in diseases, and (iii) reported several novel drug targets. P10636 (microtubule-associated protein tau, that is involved in diseases like dementia etc.) was found to be the commonly screened target by about seventy percent of these phytochemicals. We report 20 drug-like phytochemicals in this herb, out of which 7 are found to be the potential regulators of 5 FDA approved drug targets. Multi-targeting capacity of 3 phytochemicals involved in neuroactive ligand receptor interaction pathway was further explored via molecular docking experiments. To investigate the molecular mechanism of P. longum's action against neurological disorders, we have developed a computational framework that can be easily extended to explore its healing potential against other diseases and can also be applied to scrutinize other indigenous herbs for drug-design studies. PMID- 29320555 TI - Chronic kidney disease associated with decreased bone mineral density, uric acid and metabolic syndrome. AB - OBJECTIVE: The relationship between decreased bone mineral density (BMD) and chronic kidney disease (CKD) is controversial. The associations among metabolic syndrome (MetS), serum uric acid and CKD are also unclear. We aimed to investigate the relationship between decreased BMD, MetS, serum uric acid and CKD in a general population. METHODS: A total of 802 subjects who visited a medical center in Southern Taiwan and underwent a BMD measured by dual-energy X-ray absorptiometry (DEXA) during a health examination were enrolled in this retrospective cross-sectional study. Either osteopenia or osteoporosis was defined as decreased BMD. CKD was defined as the estimated glomerular filtration rate (eGFR) of less than 60 mL/min/1.73m2. Simple and multivariate logistic regression analyses were used to investigate the association between variables, decreased BMD and CKD. RESULTS: Of the 802 subjects with a mean age of 54.4+/ 10.2 years, the prevalence of decreased BMD was 62.9%, and CKD was 3.7%. Simple logistic analysis showed that sex (OR 3.50, 95% CI 1.21-10.12, p = 0.021), age (OR 1.14, 95% CI 1.07-1.21, p<0.001), BMI (OR 1.11, 95% CI 1.01-1.22, p = 0.028), waist circumference (OR 1.06, 95% CI 1.02-1.10, p = 0.002), SBP (OR 1.03, 95% CI 1.01-1.04, p = 0.003), DBP (OR 1.03, 95% CI 1.00-1.06, p = 0.030), HDL-C (OR 0.97, 95% CI 0.94-1.00, p = 0.026), uric acid (OR 1.84, 95% CI 1.49-2.27, p<0.001), metabolic syndrome (OR 2.68, 95% CI 1.29-5.67, p = 0.009), and decreased BMD (OR 3.998, 95% CI 1.38-11.57, p = 0.011) were significantly associated with CKD. Multivariate analysis showed that age (OR 1.05, 95% CI 1.03 1.07, p<0.001), decreased BMD (OR 0.64, 95% CI 0.45-0.91, p = 0.013), and uric acid (OR 1.40, 95% CI 1.24-1.59, p<0.001) were significantly independently associated with CKD. CONCLUSIONS: Decreased BMD, uric acid and MetS were significantly associated with CKD.. Further large and prospective cohort studies are necessary to investigate whether management of osteoporosis, hyperuricemia, or MetS might prevent the progression of CKD. PMID- 29320556 TI - Care-seeking patterns among families that experienced under-five child mortality in rural Rwanda. AB - BACKGROUND: Over half of under-five deaths occur in sub-Saharan Africa and appropriate, timely, quality care is critical for saving children's lives. This study describes the context surrounding children's deaths from the time the illness was first noticed, through the care-seeking patterns leading up to the child's death, and identifies factors associated with care-seeking for these children in rural Rwanda. METHODS: Secondary analysis of a verbal and social autopsy study of caregivers who reported the death of a child between March 2013 to February 2014 that occurred after discharge from the child's birth facility in southern Kayonza and Kirehe districts in Rwanda. Bivariate analyses using Fisher's exact tests were conducted to identify child, caregiver, and household factors associated with care-seeking from the formal health system (i.e., community health worker or health facility). Factors significant at alpha = 0.10 significance level were considered for backwards stepwise multivariate logistic regression, stopping when remaining factors were significantly associated with care-seeking at alpha = 0.05 significance level. RESULTS: Among the 516 eligible deaths among children under-five, 22.7% (n = 117) did not seek care from the health system. For those who did, the most common first point of contact was community health workers (45.8%). In multivariate logistic regression, higher maternal education (OR = 3.36, 95% CI: 1.89, 5.98), having diarrhea (OR = 4.21, 95%CI: 1.95, 9.07) or fever (OR = 2.03, 95%CI: 1.11, 3.72), full household insurance coverage (3.48, 95%CI: 1.79, 6.76), and longer duration of illness (OR = 22.19, 95%CI: 8.88, 55.48) were significantly associated with formal care seeking. CONCLUSION: Interventions such as community health workers and insurance promote access to care, however a gap remains as many children had no contact with the health system prior to death and those who sought formal care still died. Further efforts are needed to respond to urgent cases in communities and further understand remaining barriers to accessing appropriate, quality care. PMID- 29320557 TI - High AHR expression in breast tumors correlates with expression of genes from several signaling pathways namely inflammation and endogenous tryptophan metabolism. AB - Increasing epidemiological and animal experimental data provide substantial support for the role of aryl hydrocarbon receptor (AhR) in mammary tumorigenesis. The effects of AhR have been clearly demonstrated in rodent models of breast carcinogenesis and in several established human breast cancer cell lines following exposure to AhR ligands or AhR overexpression. However, relatively little is known about the role of AhR in human breast cancers. AhR has always been considered to be a regulator of toxic and carcinogenic responses to environmental contaminants such as TCDD (dioxin) and benzo[a]pyrene (BaP). The aim of this study was to identify the type of breast tumors (ERalpha-positive or ERalpha-negative) that express AHR and how AhR affects human tumorigenesis. The levels of AHR, AHR nuclear translocator (ARNT) and AHR repressor (AHRR) mRNA expression were analyzed in a cohort of 439 breast tumors, demonstrating a weak association between high AHR expression and age greater than fifty years and ERalpha-negative status, and HR-/ERBB2 breast cancer subtypes. AHRR mRNA expression was associated with metastasis-free survival, while AHR mRNA expression was not. Immunohistochemistry revealed the presence of AhR protein in both tumor cells (nucleus and/or cytoplasm) and the tumor microenvironment (including endothelial cells and lymphocytes). High AHR expression was correlated with high expression of several genes involved in signaling pathways related to inflammation (IL1B, IL6, TNF, IL8 and CXCR4), metabolism (IDO1 and TDO2 from the kynurenine pathway), invasion (MMP1, MMP2 and PLAU), and IGF signaling (IGF2R, IGF1R and TGFB1). Two well-known ligands for AHR (TCDD and BaP) induced mRNA expression of IL1B and IL6 in an ERalpha-negative breast tumor cell line. The breast cancer ER status likely influences AhR activity involved in these signaling pathways. The mechanisms involved in AhR activation and target gene expression in breast cancers are also discussed. PMID- 29320558 TI - Thrombolysis in stroke patients: Comparability of point-of-care versus central laboratory international normalized ratio. AB - BACKGROUND: In acute stroke patients, thrombolysis is one gold standard therapy option within the first four hours after the ischemic event. A contraindication for thrombolysis is an International Normalized Ratio (INR) value >1.7. Since time is brain, rapid and reliable INR results are fundamental. Aim was to compare INR values determined by central laboratory (CL) analyzer and Point-of-Care Testing(POCT)-device and to evaluate the quality of POCT performance in cases of potential therapeutic thrombolysis at a certified stroke unit. METHODS: In 153 patients INR measurements using POCT-devices (HEMOCHRON Signature Elite(r)) were compared to INR measurements (BCS(r)XP) performed at the central laboratory. Outlier evaluation was performed regarding the critical thrombolysis cut-off. RESULTS: Overall, we demonstrated a significant correlation (r = 0.809, p<0.0001) between both measurement methods. Mean value of the absolute difference between CL-INR and POCT-INR measurements was 0.23. In 95.4% of these cases, no differences regarding the critical cut-off (INR 1.7) were observed. POCT-INR values tended to be higher than the CL-INR values (p = 0.01). In 4.6% cases, a different value regarding thrombolysis cut-off was found. All patients were >75 years. CONCLUSIONS: POCT-INR measurements based on our POCT concept are suitable to determine INR values in critical stroke patients. Nevertheless, outlier evaluation is mandatory. PMID- 29320559 TI - Characterization of the naive murine antibody repertoire using unamplified high throughput sequencing. AB - Antibody specificity and diversity are generated through the enzymatic splicing of genomic gene segments within each B cell. Antibodies are heterodimers of heavy and light-chains encoded on separate loci. We studied the antibody repertoire from pooled, splenic tissue of unimmunized, adult female C57BL/6J mice, using high-throughput sequencing (HTS) without amplification of antibody transcripts. We recovered over 90,000 heavy-chain and over 135,000 light-chain immunoglobulin sequences. Individual V-, D-, and J-gene segment usage was uniform among the three mouse pools, particularly in highly abundant gene segments, with low frequency V-gene segments not being detected in all pools. Despite the similar usage of individual gene segments, the repertoire of individual B-cell CDR3 amino acid sequences in each mouse pool was highly varied, affirming the combinatorial diversity in the B-cell pool that has been previously demonstrated. There also was some skewing in the V-gene segments that were detected depending on chromosomal location. This study presents a unique, non-primer biased glimpse of the conventionally housed, unimmunized antibody repertoire of the C57BL6/J mouse. PMID- 29320560 TI - Measurements agreement between low-cost and high-level handheld 3D scanners to scan the knee for designing a 3D printed knee brace. AB - Use of additive manufacturing is growing rapidly in the orthotics field. This technology allows orthotics to be designed directly on digital scans of limbs. However, little information is available about scanners and 3D scans. The aim of this study is to look at the agreement between manual measurements, high-level and low-cost handheld 3D scanners. We took two manual measurements and three 3D scans with each scanner from 14 lower limbs. The lower limbs were divided into 17 sections of 30mm each from 180mm above the mid-patella to 300mm below. Time to record and to process the three 3D scans for scanners methods were compared with Student t-test while Bland-Altman plots were used to study agreement between circumferences of each section from the three methods. The record time was 97s shorter with high-level scanner than with the low-cost (p = .02) while the process time was nine times quicker with the low-cost scanner (p < .01). An overestimation of 2.5mm was found in high-level scanner compared to manual measurement, but with a better repeatability between measurements. The low-cost scanner tended to overestimate the circumferences from 0.1% to 1.5%, overestimation being greater for smaller circumferences. In conclusion, 3D scanners provide more information about the shape of the lower limb, but the reliability depends on the 3D scanner and the size of the scanned segment. Low cost scanners could be useful for clinicians because of the simple and fast process, but attention should be focused on accuracy, which depends on the scanned body segment. PMID- 29320561 TI - alpha-smooth muscle actin is not a marker of fibrogenic cell activity in skeletal muscle fibrosis. AB - alpha-Smooth muscle actin (alpha-SMA) is used as a marker for a subset of activated fibrogenic cells, myofibroblasts, which are regarded as important effector cells of tissue fibrogenesis. We address whether alpha-SMA-expressing myofibroblasts are detectable in fibrotic muscles of mdx5cv mice, a mouse model for Duchenne muscular dystrophy (DMD), and whether the alpha-SMA expression correlates with the fibrogenic function of intramuscular fibrogenic cells. alpha SMA immunostaining signal was not detected in collagen I (GFP)-expressing cells in fibrotic muscles of ColI-GFP/mdx5cv mice, but it was readily detected in smooth muscle cells lining intramuscular blood vessel walls. alpha-SMA expression was detected by quantitative RT-PCR and Western blot in fibrogenic cells sorted from diaphragm and quadriceps muscles of the ColI-GFP/mdx5cv mice. Consistent with the more severe fibrosis in the ColI-GFP/mdx5cv diaphragm, the fibrogenic cells in the diaphragm exerted a stronger fibrogenic function than the fibrogenic cells in the quadriceps as gauged by their extracellular matrix gene expression. However, both gene and protein expression of alpha-SMA was lower in the diaphragm fibrogenic cells than in the quadriceps fibrogenic cells in the ColI-GFP/mdx5cv mice. We conclude that myofibroblasts are present in fibrotic skeletal muscles, but their expression of alpha-SMA is not detectable by immunostaining. The level of alpha-SMA expression by intramuscular fibrogenic cells does not correlate positively with the level of collagen gene expression or the severity of skeletal muscle fibrosis in the mdx5cv mice. alpha-SMA is not a functional marker of fibrogenic cells in skeletal muscle fibrosis associated with muscular dystrophy. PMID- 29320562 TI - M1-like macrophages change tumor blood vessels and microenvironment in murine melanoma. AB - Tumor-associated macrophages (TAMs) play a significant role in at least two key processes underlying neoplastic progression: angiogenesis and immune surveillance. TAMs phenotypic changes play important role in tumor vessel abnormalization/ normalization. M2-like TAMs stimulate immunosuppression and formation of defective tumor blood vessels leading to tumor progression. In contrast M1-like TAMs trigger immune response and normalize irregular tumor vascular network which should sensitize cancer cells to chemo- and radiotherapy and lead to tumor growth regression. Here, we demonstrated that combination of endoglin-based DNA vaccine with interleukin 12 repolarizes TAMs from tumor growth promoting M2-like phenotype to tumor growth-inhibiting M1-like phenotype. Combined therapy enhances tumor infiltration by CD4+, CD8+ lymphocytes and NK cells. Depletion of TAMs as well as CD8+ lymphocytes and NK cells, but not CD4+ lymphocytes, reduces the effect of combined therapy. Furthermore, combined therapy improves tumor vessel maturation, perfusion and reduces hypoxia. It caused that suboptimal doses of doxorubicin reduced the growth of tumors in mice treated with combined therapy. To summarize, combination of antiangiogenic drug and immunostimulatory agent repolarizes TAMs phenotype from M2-like (pro-tumor) into M1-like (anti-tumor) which affects the structure of tumor blood vessels, improves the effect of chemotherapy and leads to tumor growth regression. PMID- 29320564 TI - A time-lagged effect of conspecific density on habitat selection by snowshoe hare. AB - Ideal free distribution theory predicts that increased conspecific density redistributes individuals to low-density, suboptimal habitat. However, possible lags in response to population density remain poorly documented. Snowshoe hares (Lepus americanus) may exhibit density-dependent habitat selection due to its marked variation in population density. Based on 11 years (2004-2014) of snow tracking in Quebec (Canada), we investigated snowshoe hares' short-term and delayed habitat selection responses to population density. We predicted that at high densities, hare distribution expands into low-density habitat, thus weakening the association between hares and high-density habitat. We surveyed hare tracks along 95 km of transects on average each year and georeferenced 14,240 tracks. We used Generalized Estimating Equations for track count per 100 m transect segment as a function of the proportion of different forest age classes (0-20 y, 20-40 y and 40-80 y) within 50 m of the segments. We used model coefficients for each age class as a measure of habitat preference, and modeled those coefficients as a function of a population density index in current and previous winters. Coefficients for 20- to 40-y-old forests were positive each year, indicating that this habitat was preferred. The association between track counts and 20- to 40-y-old forest significantly declined with density during the previous winter, suggesting that hare spread from preferred forest with a lagged response to density. To our knowledge, no previous empirical studies have documented a lagged habitat selection response to population density. Time lags offer possible explanation for documented deviations from ideal free distribution models. PMID- 29320563 TI - Field effectiveness of highly pathogenic avian influenza H5N1 vaccination in commercial layers in Indonesia. AB - Although vaccination of poultry for control of highly pathogenic avian influenza virus (HPAIV) H5N1 has been practiced during the last decade in several countries, its effectiveness under field conditions remains largely unquantified. Effective HPAI vaccination is however essential in preventing incursions, silent infections and generation of new H5N1 antigenic variants. The objective of this study was to asses the level and duration of vaccine induced immunity in commercial layers in Indonesia. Titres of H5N1 haemagglutination inhibition (HI) antibodies were followed in individual birds from sixteen flocks, age 18-68 week old (wo). The study revealed that H5N1 vaccination had highly variable outcome, including vaccination failures, and was largely ineffective in providing long lasting protective immunity. Flocks were vaccinated with seven different vaccines, administer at various times that could be grouped into three regimes: In regime A, flocks (n = 8) were vaccinated two or three times before 19 wo; in regime B (n = 2), two times before and once after 19 wo; and in regime C (n = 6) three to four times before and two to three times after 19 wo. HI titres in regime C birds were significantly higher during the entire observation period in comparison to titres of regime A or B birds, which also differed significantly from each other. The HI titres of individual birds in each flock differed significantly from birds in other flocks, indicating that the effectiveness of field vaccination was highly variable and farm related. Protective HI titres of >4log2, were present in the majority of flocks at 18 wo, declined thereafter at variable rate and only two regime C flocks had protective HI titres at 68 wo. Laboratory challenge with HPAIV H5N1 of birds from regime A and C flocks confirmed that protective immunity differed significantly between flocks vaccinated by these two regimes. The study revealed that effectiveness of the currently applied H5N1 vaccination could be improved and measures to achieve this are discussed. PMID- 29320565 TI - The absence of N-acetylglucosamine in wall teichoic acids of Listeria monocytogenes modifies biofilm architecture and tolerance to rinsing and cleaning procedures. AB - The wall teichoic acid (WTA) is the major carbohydrate found within the extracellular matrix of the Listeria monocytogenes biofilm. We first addressed the frequency of spontaneous mutations in two genes (lmo2549 and lmo2550) responsible for the GlcNAcylation in 93 serotype 1/2a strains that were mainly isolated from seafood industries. We studied the impact of mutations in lmo2549 or lmo2550 genes on biofilm formation by using one mutant carrying a natural mutation inactivating the lmo2550 gene (DSS 1130 BFA2 strain) and two EGD-e mutants that lack respective genes by in-frame deletion of lmo2549 or lmo2550 using splicing-by-overlap-extension PCR, followed by allelic exchange mutagenesis. The lmo2550 gene mutation, occurring in around 50% isolates, caused a decrease in bacterial adhesion to stainless steel compared to wild-type EGD-e strain during the adhesion step. On the other hand, bacterial population weren't significantly different after 24h-biofilm formation. The biofilm architecture was different between the wild-type strain and the two mutants inactivated for lmo2549 or lmo2550 genes respectively with the presence of bacterial micro colonies for mutants which were not observed in the wild-type EGD-e strain biofilm. These differences might account for the stronger hydrophilic surface exhibited by the mutant cells. Upon a water flow or to a cleaning procedure at a shear stress of 0.16 Pa, the mutant biofilms showed the higher detachment rate compared to wild-type strain. Meanwhile, an increase in the amount of residual viable but non-culturable population on stainless steel was recorded in two mutants. Our data suggests that the GlcNAc residue of WTA played a role in adhesion and biofilm formation of Listeria monocyctogenes. PMID- 29320566 TI - The effect of time-of-day and chest physiotherapy on multiple breath washout measures in children with clinically stable cystic fibrosis. AB - BACKGROUND: In this pilot study we investigated daytime variation of multiple breath nitrogen washout (N2MBW) measures in children with clinically stable cystic fibrosis. To our knowledge the effect of time-of-day on multiple breath washout measures in patients with cystic fibrosis has not previously been reported. Furthermore, we assessed the influence of chest physiotherapy on N2MBW measures. METHODS: Ten school children with cystic fibrosis performed N2MBW followed by spirometry and plethysmography in the morning and afternoon at three visits that were one month apart. Chest physiotherapy was performed immediately before the afternoon measurements at visit 2 and immediately before morning and afternoon measurements at visit 3. The influence of time-of-day and chest physiotherapy on the measures was evaluated using linear mixed models. RESULTS: There were adequate quality data from 8 children with median age (range) 9.6 (6.0; 15.1) years. Baseline lung clearance index (LCI) (range) was 9.0 (7.1; 13.0) and baseline FEV1% predicted was 97.5 (78.5; 117.9). No N2MBW measures were significantly influenced by time-of-day or chest physiotherapy. LCI (95% confidence interval) decreased non-significantly 0.05 (-0.32; 0.22) during the day and increased non-significantly 0.08 (-0.26; 0.42) after chest physiotherapy. All spirometric measures were unaffected by time-of-day and chest physiotherapy. For plethysmographic measures FRCpleth decreased significantly (p<0.01) 110 mL during the day, whereas a borderline significant (p = 0.046) decrease in DeltaFRCpleth-MBW during the day and a borderline significant (p = 0.03) increase in TLC after CPT were observed. CONCLUSION: This study demonstrated that the time of-day as well as chest physiotherapy performed immediately prior to N2MBW had no consistent or significant influence on N2MBW measures. However, we emphasize that further studies of the effect of both daytime variation and the effect of chest physiotherapy on multiple breath washout measures are warranted. PMID- 29320567 TI - Myocardium of patients with dilated cardiomyopathy presents altered expression of genes involved in thyroid hormone biosynthesis. AB - BACKGROUND: The association between dilated cardiomyopathy (DCM) and low thyroid hormone (TH) levels has been previously described. In these patients abnormal thyroid function is significantly related to impaired left ventricular (LV) function and increased risk of death. Although TH was originally thought to be produced exclusively by the thyroid gland, we recently reported TH biosynthesis in the human ischemic heart. OBJECTIVES: Based on these findings, we evaluated whether the genes required for TH production are also altered in patients with DCM. METHODS: Twenty-three LV tissue samples were obtained from patients with DCM (n = 13) undergoing heart transplantation and control donors (n = 10), and used for RNA sequencing analysis. The number of LV DCM samples was increased to 23 to determine total T4 and T3 tissue levels by ELISA. RESULTS: We found that all components of TH biosynthesis are expressed in human dilated heart tissue. Expression of genes encoding thyroperoxidase (-2.57-fold, P < 0.05) and dual oxidase 2 (2.64-fold, P < 0.01), the main enzymatic system of TH production, was significantly altered in patients with DCM and significantly associated with LV remodeling parameters. Thyroxine (T4) cardiac tissue levels were significantly increased (P < 0.01), whilst triiodothyronine (T3) levels were significantly diminished (P < 0.05) in the patients. CONCLUSIONS: Expression of TH biosynthesis machinery in the heart and total tissue levels of T4 and T3, are altered in patients with DCM. Given the relevance of TH in cardiac pathology, our results provide a basis for new gene-based therapeutic strategies for treating DCM. PMID- 29320568 TI - Gastrointestinal safety of etoricoxib in osteoarthritis and rheumatoid arthritis: A meta-analysis. AB - OBJECTIVE: To ascertain if etoricoxib increases the risk of gastrointestinal adverse events (GAEs) compared with placebo, diclofenac, and naproxen in the treatment of patients with osteoarthritis (OA) or rheumatoid arthritis (RA). METHODS: Studies were searched in MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials from inception to August 2017. Randomized Clinical Trials (RCTs) that compared etoricoxib with placebo and other active drug for patients with OA or RA and reported data on gastrointestinal safety (which is of interest to patients and clinicians) were included. The follow-up time window for GAEs was defined as within 28 days subsequent to the last dose of study medication. A meta analysis was conducted using a fixed-effect model. Risk ratios (RRs) and 95% confidence intervals (CIs) were measured. RESULTS: We found nine randomized clinical trials (RCTs) that included information on gastrointestinal safety during follow-up time. Among them, five RCTs compared etoricoxib with placebo, four RCTs compared etoricoxib with diclofenac, and three RCTs compared etoricoxib with naproxen. Etoricoxib did not increase the risk of GAEs compared with placebo. Compared with diclofenac and naproxen, etoricoxib reduced the GAE risk (RR, 0.67; 95% CI, 0.59-0.76; p < 0.00001; 0.59; 0.48-0.72; < 0.00001) during follow-up time. CONCLUSIONS: In patients with OA or RA, etoricoxib did not increase the GAE risk compared with placebo, but reduced the GAE risk effectively compared with diclofenac and naproxen during follow-up time. PMID- 29320569 TI - Transcriptome profiling of pumpkin (Cucurbita moschata Duch.) leaves infected with powdery mildew. AB - Cucurbit powdery mildew (PM) is one of the most severe fungal diseases, but the molecular mechanisms underlying PM resistance remain largely unknown, especially in pumpkin (Cucurbita moschata Duch.). The goal of this study was to identify gene expression differences in PM-treated plants (harvested at 24 h and 48 h after inoculation) and untreated (control) plants of inbred line "112-2" using RNA sequencing (RNA-Seq). The inbred line "112-2" has been purified over 8 consecutive generations of self-pollination and shows high resistance to PM. More than 7600 transcripts were examined in pumpkin leaves, and 3129 and 3080 differentially expressed genes (DEGs) were identified in inbred line "112-2" at 24 and 48 hours post inoculation (hpi), respectively. Based on the KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway database and GO (Gene Ontology) database, a complex regulatory network for PM resistance that may involve hormone signal transduction pathways, transcription factors and defense responses was revealed at the transcription level. In addition, the expression profiles of 16 selected genes were analyzed using quantitative RT-PCR. Among these genes, the transcript levels of 6 DEGs, including bHLH87 (Basic Helix-loop-helix transcription factor), ERF014 (Ethylene response factor), WRKY21 (WRKY domain), HSF (heat stress transcription factor A), MLO3 (Mildew Locus O), and SGT1 (Suppressor of G-Two Allele of Skp1), in PM-resistant "112-2" were found to be significantly up- or down-regulated both before 9 hpi and at 24 hpi or 48 hpi; this behavior differed from that observed in the PM-susceptible material (cultivar "Jiujiangjiaoding"). The transcriptome data provide novel insights into the response of Cucurbita moschata to PM stress and are expected to be highly useful for dissecting PM defense mechanisms in this major vegetable and for improving pumpkin breeding with enhanced resistance to PM. PMID- 29320570 TI - Image-guided, whole-pelvic, intensity-modulated radiotherapy for biochemical recurrence following radical prostatectomy in high-risk prostate cancer patients. AB - BACKGROUND: The optimal field size of salvage radiotherapy (SRT) for biochemical recurrence, particularly for patients with high-risk prostate cancer, remains undefined. This retrospective analysis was performed to investigate oncological outcomes as well as treatment-related toxicity following salvage intensity modulated radiotherapy (IMRT) to the whole pelvis and to compare the results with other studies implementing a small field size of the prostate bed. METHODS: The medical records of 170 patients with high-risk prostate cancer who received SRT for biochemical recurrence following prostatectomy were reviewed. Whole-pelvic IMRT was administered with a median dose of 66 Gy in 30 fractions. To improve treatment accuracy, an endorectal balloon device and daily cone-beam computed tomography were utilized. Androgen-deprivation therapy combined with SRT was administered to 97 (57.1%) patients. RESULTS: Eventually, 68 (40.0%) patients showed biochemical progression (BCP) after SRT. With a median follow-up period of 56 months, the 5-year BCP-free survival was 38.6%. The overall and cause-specific survival rates were 90.9% and 96.7%, respectively. Regarding BCP-free survival analysis, pathological T stage, persistent prostate-specific antigen (PSA) elevation after prostatectomy, and preSRT PSA level were significant prognostic factors on univariate analysis. On multivariate analysis, pathological T stage and preSRT PSA value retained their significance. Acute and late grade-3 genitourinary toxicities were observed in one (0.6%) and five (2.9%) patients, respectively. One patient each developed acute and late grade-3 gastrointestinal toxicity. CONCLUSION: SRT to whole pelvis using IMRT and image guidance is as safe as SRT to the prostate bed, but its efficacy should be confirmed in ongoing randomized trials. PreSRT PSA was the only controllable prognostic factor, suggesting the benefit of early SRT. PMID- 29320571 TI - Inhibitory effect and possible mechanism of a Pseudomonas strain QBA5 against gray mold on tomato leaves and fruits caused by Botrytis cinerea. AB - The fungal pathogen Botrytis cinerea causes gray mold disease on various hosts, which results in serious economic losses. Over the past several decades, many kinds of fungicides have been used to successfully control the disease. Meanwhile, the uses of fungicides lead to environmental pollution as well as a potential threat to the human health by the chemical residues in tomato fruit. Also, the gray mold disease is difficult to control with fungicides. Therefore, exploring alternative measures such as biological controls could be the best choice to control the disease and alleviate damages caused by fungicides. In this study, we isolated and identified a novel Pseudomonas strain termed as QBA5 from healthy tomato plant based on the morphological, biochemical characteristics and molecular detection. The antifungal activity assays revealed that, in the presence of QBA5, conidia germination, germ tube elongation and mycelial growth of B. cinerea were significantly inhibited. Most importantly, QBA5 exerted a significant preventive effectiveness against gray mold on tomato fruits and plants. The possible mechanism of QBA5 involved in the inhibition of B. cinerea was investigated. It revealed that the conidia plasma membrane of B. cinerea was severely damaged by QBA5. Further, four different antifungal compounds in the supernatant of QBA5 were separated by preparative high performance liquid chromatography (PHPLC). Overall, the data indicate that there is a considerable potential for QBA5 to reduce the damage caused by gray mold disease on tomato. PMID- 29320572 TI - International migration patterns of Red-throated Loons (Gavia stellata) from four breeding populations in Alaska. AB - Identifying post-breeding migration and wintering distributions of migratory birds is important for understanding factors that may drive population dynamics. Red-throated Loons (Gavia stellata) are widely distributed across Alaska and currently have varying population trends, including some populations with recent periods of decline. To investigate population differentiation and the location of migration pathways and wintering areas, which may inform population trend patterns, we used satellite transmitters (n = 32) to describe migration patterns of four geographically separate breeding populations of Red-throated Loons in Alaska. On average (+/- SD) Red-throated Loons underwent long (6,288 +/- 1,825 km) fall and spring migrations predominantly along coastlines. The most northern population (Arctic Coastal Plain) migrated westward to East Asia and traveled approximately 2,000 km farther to wintering sites than the three more southerly populations (Seward Peninsula, Yukon-Kuskokwim Delta, and Copper River Delta) which migrated south along the Pacific coast of North America. These migration paths are consistent with the hypothesis that Red-throated Loons from the Arctic Coastal Plain are exposed to contaminants in East Asia. The three more southerly breeding populations demonstrated a chain migration pattern in which the more northerly breeding populations generally wintered in more northerly latitudes. Collectively, the migration paths observed in this study demonstrate that some geographically distinct breeding populations overlap in wintering distribution while others use highly different wintering areas. Red-throated Loon population trends in Alaska may therefore be driven by a wide range of effects throughout the annual cycle. PMID- 29320573 TI - An evaluation of three-dimensional photogrammetric and morphometric techniques for estimating volume and mass in Weddell seals Leptonychotes weddellii. AB - Body mass dynamics of animals can indicate critical associations between extrinsic factors and population vital rates. Photogrammetry can be used to estimate mass of individuals in species whose life histories make it logistically difficult to obtain direct body mass measurements. Such studies typically use equations to relate volume estimates from photogrammetry to mass; however, most fail to identify the sources of error between the estimated and actual mass. Our objective was to identify the sources of error that prevent photogrammetric mass estimation from directly predicting actual mass, and develop a methodology to correct this issue. To do this, we obtained mass, body measurements, and scaled photos for 56 sedated Weddell seals (Leptonychotes weddellii). After creating a three-dimensional silhouette in the image processing program PhotoModeler Pro, we used horizontal scale bars to define the ground plane, then removed the below ground portion of the animal's estimated silhouette. We then re-calculated body volume and applied an expected density to estimate animal mass. We compared the body mass estimates derived from this silhouette slice method with estimates derived from two other published methodologies: body mass calculated using photogrammetry coupled with a species-specific correction factor, and estimates using elliptical cones and measured tissue densities. The estimated mass values (mean +/- standard deviation 345+/-71 kg for correction equation, 346+/-75 kg for silhouette slice, 343+/-76 kg for cones) were not statistically distinguishable from each other or from actual mass (346+/-73 kg) (ANOVA with Tukey HSD post-hoc, p>0.05 for all pairwise comparisons). We conclude that volume overestimates from photogrammetry are likely due to the inability of photo modeling software to properly render the ventral surface of the animal where it contacts the ground. Due to logistical differences between the "correction equation", "silhouette slicing", and "cones" approaches, researchers may find one technique more useful for certain study programs. In combination or exclusively, these three dimensional mass estimation techniques have great utility in field studies with repeated measures sampling designs or where logistic constraints preclude weighing animals. PMID- 29320574 TI - Acceleration of small bowel motility after oral administration of dai-kenchu-to (TJ-100) assessed by cine magnetic resonance imaging. AB - Dai-kenchu-to (TJ-100) is an herbal medicine used to shorten the duration of intestinal transit by accelerating intestinal movement. However, intestinal movement in itself has not been evaluated in healthy volunteers using radiography, fluoroscopy, and radioisotopes because of exposure to ionizing radiation. The purpose of this study was to evaluate the effect of TJ-100 on intestinal motility using cinematic magnetic resonance imaging (cine MRI) with a steady-state free precession sequence. Ten healthy male volunteers received 5 g of either TJ-100 or lactose without disclosure of the identity of the substance. Each volunteer underwent two MRI examinations after taking the substances (TJ-100 and lactose) on separate days. They drank 1200 mL of tap water and underwent cine MRI after 10 min. A steady-state free precession sequence was used for imaging, which was performed thrice at 0, 10, 20, 30, 40, and 50 min. The bowel contraction frequency and distention score were assessed. Wilcoxon signed-rank test was used, and differences were considered significant at a P-value <0.05. The bowel contraction frequency tended to be greater in the TJ-100 group and was significantly different in the ileum at 20 (TJ-100, 8.95 +/- 2.88; lactose, 4.80 +/- 2.92; P < 0.05) and 50 min (TJ-100, 9.45 +/- 4.49; lactose, 4.45 +/- 2.65; P < 0.05) between the groups. No significant differences were observed in the bowel distention scores. Cine MRI demonstrated that TJ-100 activated intestinal motility without dependence on ileum distention. PMID- 29320575 TI - AZP-531, an unacylated ghrelin analog, improves food-related behavior in patients with Prader-Willi syndrome: A randomized placebo-controlled trial. AB - CONTEXT AND OBJECTIVE: Prader-Willi syndrome (PWS) is characterized by early onset hyperphagia and increased circulating levels of the orexigenic Acylated Ghrelin (AG) hormone with a relative deficit of Unacylated Ghrelin (UAG). AZP 531, a first-in-class UAG analog, was shown to inhibit the orexigenic effect of AG in animals, to improve glycemic control and decrease body weight in humans. We aimed to investigate the safety and efficacy of AZP-531 in patients with PWS for whom no approved treatment for hyperphagia is currently available. METHODS AND DESIGN: Multi-center, randomized, double-blind, placebo-controlled trial. Forty seven patients with genetically confirmed PWS and evidence of hyperphagia received daily subcutaneous injections of AZP-531 (3 and 4 mg for 50-70 kg and >70 kg body weight, respectively) or matching placebo for 14 days. Assessments included adverse events, vital signs, safety laboratory tests, the Hyperphagia Questionnaire (HQ), patient-reported appetite, body composition and glycemic measures. RESULTS: AZP-531 was well tolerated. There was a significant improvement with AZP-531 versus placebo in the mean total score, the 9-item score and the severity domain score of the HQ (p < .05). The highest reduction in the total and 9-item scores was observed in AZP-531 subjects with the highest hyperphagia score at baseline. Findings were supported by a reduction in appetite scores observed with AZP-531 only. Body weight did not change in both groups while a significant reduction in waist circumference and fat mass was observed only with AZP-531. AZP-531 significantly decreased post-prandial glucose levels in a baseline glucose dependent fashion. CONCLUSIONS: AZP-531 may constitute a new treatment strategy to improve hyperphagia and metabolic issues in patients with PWS. These findings support further investigation in longer-term clinical trials. PMID- 29320576 TI - Targeting DNA repair with PNKP inhibition sensitizes radioresistant prostate cancer cells to high LET radiation. AB - High linear energy transfer (LET) radiation or heavy ion such as carbon ion radiation is used as a method for advanced radiotherapy in the treatment of cancer. It has many advantages over the conventional photon based radiotherapy using Co-60 gamma or high energy X-rays from a Linear Accelerator. However, charged particle therapy is very costly. One way to reduce the cost as well as irradiation effects on normal cells is to reduce the dose of radiation by enhancing the radiation sensitivity through the use of a radiomodulator. PNKP (polynucleotide kinase/phosphatase) is an enzyme which plays important role in the non-homologous end joining (NHEJ) DNA repair pathway. It is expected that inhibition of PNKP activity may enhance the efficacy of the charged particle irradiation in the radioresistant prostate cancer cell line PC-3. To test this hypothesis, we investigated cellular radiosensitivity by clonogenic cell survival assay in PC-3 cells.12Carbon ion beam of62 MeVenergy (equivalent 5.16 MeV/nucleon) and with an entrance LET of 287 kev/MUm was used for the present study. Apoptotic parameters such as nuclear fragmentation and caspase-3 activity were measured by DAPI staining, nuclear ladder assay and colorimetric caspase 3method. Cell cycle arrest was determined by FACS analysis. Cell death was enhanced when carbon ion irradiation is combined with PNKPi (PNKP inhibitor) to treat cells as compared to that seen for PNKPi untreated cells. A low concentration (10MUM) of PNKPi effectively radiosensitized the PC-3 cells in terms of reduction of dose in achieving the same survival fraction. PC-3 cells underwent significant apoptosis and cell cycle arrest too was enhanced at G2/M phase when carbon ion irradiation was combined with PNKPi treatment. Our findings suggest that combined treatment of carbon ion irradiation and PNKP inhibition could enhance cellular radiosensitivity in a radioresistant prostate cancer cell line PC-3. The synergistic effect of PNKPi and carbon ion irradiation could be used as a promising method for carbon-ion therapy in radioresistant cells. PMID- 29320577 TI - Genome-wide profiling of the PIWI-interacting RNA-mRNA regulatory networks in epithelial ovarian cancers. AB - PIWI-interacting (piRNAs), ~23-36 nucleotide-long small non-coding RNAs (sncRNAs), earlier believed to be germline-specific, have now been identified in somatic cells, including cancer cells. These sncRNAs impact critical biological processes by fine-tuning gene expression at post-transcriptional and epigenetic levels. The expression of piRNAs in ovarian cancer, the most lethal gynecologic cancer is largely uncharted. In this study, we investigated the expression of PIWILs by qRT-PCR and western blotting and then identified piRNA transcriptomes in tissues of normal ovary and two most prevalent epithelial ovarian cancer subtypes, serous and endometrioid by small RNA sequencing. We detected 219, 256 and 234 piRNAs in normal ovary, endometrioid and serous ovarian cancer samples respectively. We observed piRNAs are encoded from various genomic regions, among which introns harbor the majority of them. Surprisingly, piRNAs originated from different genomic contexts showed the varied level of conservations across vertebrates. The functional analysis of predicted targets of differentially expressed piRNAs revealed these could modulate key processes and pathways involved in ovarian oncogenesis. Our study provides the first comprehensive piRNA landscape in these samples and a useful resource for further functional studies to decipher new mechanistic views of piRNA-mediated gene regulatory networks affecting ovarian oncogenesis. The RNA-seq data is submitted to GEO database (GSE83794). PMID- 29320579 TI - Emotional modelling and classification of a large-scale collection of scene images in a cluster environment. AB - The development of network technology and the popularization of image capturing devices have led to a rapid increase in the number of digital images available, and it is becoming increasingly difficult to identify a desired image from among the massive number of possible images. Images usually contain rich semantic information, and people usually understand images at a high semantic level. Therefore, achieving the ability to use advanced technology to identify the emotional semantics contained in images to enable emotional semantic image classification remains an urgent issue in various industries. To this end, this study proposes an improved OCC emotion model that integrates personality and mood factors for emotional modelling to describe the emotional semantic information contained in an image. The proposed classification system integrates the k Nearest Neighbour (KNN) algorithm with the Support Vector Machine (SVM) algorithm. The MapReduce parallel programming model was used to adapt the KNN-SVM algorithm for parallel implementation in the Hadoop cluster environment, thereby achieving emotional semantic understanding for the classification of a massive collection of images. For training and testing, 70,000 scene images were randomly selected from the SUN Database. The experimental results indicate that users with different personalities show overall consistency in their emotional understanding of the same image. For a training sample size of 50,000, the classification accuracies for different emotional categories targeted at users with different personalities were approximately 95%, and the training time was only 1/5 of that required for the corresponding algorithm with a single-node architecture. Furthermore, the speedup of the system also showed a linearly increasing tendency. Thus, the experiments achieved a good classification effect and can lay a foundation for classification in terms of additional types of emotional image semantics, thereby demonstrating the practical significance of the proposed model. PMID- 29320578 TI - The potent effect of mycolactone on lipid membranes. AB - Mycolactone is a lipid-like endotoxin synthesized by an environmental human pathogen, Mycobacterium ulcerans, the causal agent of Buruli ulcer disease. Mycolactone has pleiotropic effects on fundamental cellular processes (cell adhesion, cell death and inflammation). Various cellular targets of mycolactone have been identified and a literature survey revealed that most of these targets are membrane receptors residing in ordered plasma membrane nanodomains, within which their functionalities can be modulated. We investigated the capacity of mycolactone to interact with membranes, to evaluate its effects on membrane lipid organization following its diffusion across the cell membrane. We used Langmuir monolayers as a cell membrane model. Experiments were carried out with a lipid composition chosen to be as similar as possible to that of the plasma membrane. Mycolactone, which has surfactant properties, with an apparent saturation concentration of 1 MUM, interacted with the membrane at very low concentrations (60 nM). The interaction of mycolactone with the membrane was mediated by the presence of cholesterol and, like detergents, mycolactone reshaped the membrane. In its monomeric form, this toxin modifies lipid segregation in the monolayer, strongly affecting the formation of ordered microdomains. These findings suggest that mycolactone disturbs lipid organization in the biological membranes it crosses, with potential effects on cell functions and signaling pathways. Microdomain remodeling may therefore underlie molecular events, accounting for the ability of mycolactone to attack multiple targets and providing new insight into a single unifying mechanism underlying the pleiotropic effects of this molecule. This membrane remodeling may act in synergy with the other known effects of mycolactone on its intracellular targets, potentiating these effects. PMID- 29320580 TI - Detection of fast oscillating magnetic fields using dynamic multiple TR imaging and Fourier analysis. AB - Neuronal oscillations produce oscillating magnetic fields. There have been trials to detect neuronal oscillations using MRI, but the detectability in in vivo is still in debate. Major obstacles to detecting neuronal oscillations are (i) weak amplitudes, (ii) fast oscillations, which are faster than MRI temporal resolution, and (iii) random frequencies and on/off intervals. In this study, we proposed a new approach for direct detection of weak and fast oscillating magnetic fields. The approach consists of (i) dynamic acquisitions using multiple times to repeats (TRs) and (ii) an expanded frequency spectral analysis. Gradient echo echo-planar imaging was used to test the feasibility of the proposed approach with a phantom generating oscillating magnetic fields with various frequencies and amplitudes and random on/off intervals. The results showed that the proposed approach could precisely detect the weak and fast oscillating magnetic fields with random frequencies and on/off intervals. Complex and phase spectra showed reliable signals, while no meaningful signals were observed in magnitude spectra. A two-TR approach provided an absolute frequency spectrum above Nyquist sampling frequency pixel by pixel with no a priori target frequency information. The proposed dynamic multiple-TR imaging and Fourier analysis are promising for direct detection of neuronal oscillations and potentially applicable to any pulse sequences. PMID- 29320581 TI - Prevalence of hand osteoarthritis and knee osteoarthritis in Kashin-Beck disease endemic areas and non Kashin-Beck disease endemic areas: A status survey. AB - Osteoarthritis (OA) is a considerable health problem worldwide, and the prevalence of OA varies in different regions. In this study, the prevalence of OA in Kashin-Beck disease (KBD) and non-KBD endemic areas was examined, respectively. According to monitoring data, 4 types of regions (including none, mild, moderate and high KBD endemic areas) in Heilongjiang and Jilin provinces were selected. All local residents were eligible for inclusion criteria have undergone X-ray images of hands and anteroposterior image of knees. A total of 1673 cases were collected, 1446 cases were analyzed after removing the KBD patients (227). The overall hand OA and knee OA detection rates were 33.3% (481/1446) and 56.6% (818/1446), respectively. After being standardized by age, the detection rate of hand OA in the KBD endemic areas was significantly higher than that in the non-endemic endemic areas. Differently, there was no significant difference in the detection rates of knee OA between the KBD endemic areas and the non-endemic area. The correlation coefficient between the severity of OA and the severity of knee OA was 0.358 and 0.197 in the KBD and non-KBD endemic areas, respectively. Where the KBD historical prevalence level was higher, the severity of the residents' hand OA was more serious. The detection rates of hand OA and knee OA increased with age. The detection rate of knee OA increased with the increase in body mass index. The prevalence of hand OA was closely related to the pathogenic factors of Kashin-Beck disease, and the prevalence of knee OA had no significant correlation with KBD pathogenic factors. PMID- 29320584 TI - The Male Aesthetic Patient: Facial Anatomy, Concepts of Attractiveness, and Treatment Patterns. AB -

BACKGROUND: The number of nonsurgical aesthetic procedures performed in men is growing rapidly. However, there are limited data on treatment principles and goals for the male aesthetic patient.

OBJECTIVE: To review the objective data available on male aging and aesthetics and to synthesize with expert opinion on treatment considerations specific to male patients.

METHODS: Expert advisors met to discuss anatomical differences in male versus female facial anatomy related to aging, facial treatment preferences in aesthetically oriented men, and current dosing data for facial injectable treatments in male versus female patients.

RESULTS: Symmetry, averageness, sexual dimorphism, and youthfulness are generally accepted as factors that contribute to the perception of attractiveness. There are differences between men and women in facial anatomy, concepts of attractiveness in the context of masculinity and femininity, and treatment objectives. A communication gap exists for men, as evidenced by the lack of information available online or by word of mouth about injectable treatments.

CONCLUSIONS: Approaches to aesthetic consultation and treatment should differ between men and women based on the fundamental dissimilarities between the sexes. Educating men about available aesthetic treatments and about the safety and side effects associated with each treatment, as well as addressing concerns about their treatment results looking natural, are key considerations.

J Drugs Dermatol. 2018;17(1):19-28.

. PMID- 29320583 TI - A Multi-Center, Open-Label, Prospective Study of Cannula Injection of Small Particle Hyaluronic Acid Plus Lidocaine (SPHAL) for Lip Augmentation. AB -

BACKGROUND: The use of blunt-tipped microcannulas for injection of hyaluronic acid (HA) filler in the lip and perioral area has gained popularity as they provide important safety-related advantages compared to traditional hypodermic needles. This study was conducted to assess the safety and effectiveness associated with the use of a blunt-tipped microcannula for lip augmentation and correction of perioral rhytids using a small-particle, hyaluronic acid gel plus lidocaine (SPHAL).

METHODS: A multi-center, open-label, prospective, study enrolled 60 subjects. Subjects reported injection-related events (IREs) for 2 weeks posttreatment via diary. Adverse events (AEs) were collected throughout the study. Secondary assessments at 4 and 12 weeks posttreatment included treating investigator- and subject-reported improvement in lip fullness using the Global Aesthetic Improvement Scale (GAIS) and investigator-assessed improvement in lip fullness using the Medicis Lip Fullness Scale (MLFS).

RESULTS: Sixty subjects were enrolled and treated with a mean total volume (ie, both lips and optional perioral rhytids) of 2.2 mL. Treatment-emergent adverse events (TEAEs) reported and assessed as related to the product and/or injection procedure included injection site swelling (13.3%), injection site bruising (6.7%), and injection site pain (1.7%). These were typically mild and transient in nature. No serious AEs (SAEs) were reported. Following treatment, clinically significant improvement using the GAIS and MLFS was demonstrated throughout the study (GAIS improvement at week 12 for both lips: investigator-reported, 98.0%; subject reported, 84.3%; MLFS improvement at week 12: investigator-reported, 96.1%).

CONCLUSION: SPHAL was well tolerated and effective following injection with a blunt-tipped microcannula. No unanticipated safety concerns were identified in the study population.

J Drugs Dermatol. 2018;17(1):10-16.

. PMID- 29320585 TI - Liposuction of the Neck: Low Incidence of Nerve Injury and Other Complications in 987 Patients. AB -

The neck is one of the most common areas treated by liposuction. Neck liposuction decreases fat volume, causes skin contraction, and restores a more youthful appearance. We present a large case series (n=987) performed by three dermatologic surgeons. Five patients developed temporary post-operative marginal mandibular dysfunction, one patient had submandibular gland ptosis and one patient had arterial bleeding. Seroma, skin necrosis, scarring, and hyperpigmentation did not occur following neck liposuction. Neck liposuction performed with tumescent local anesthesia is a safe procedure associated with a low incidence of nerve injury and other complications.

J Drugs Dermatol. 2018;17(1):30-34.

. PMID- 29320582 TI - Thyroid transcriptome analysis reveals different adaptive responses to cold environmental conditions between two chicken breeds. AB - Selection for cold tolerance in chickens is important for improving production performance and animal welfare. The identification of chicken breeds with higher cold tolerance and production performance will help to target candidates for the selection. The thyroid gland plays important roles in thermal adaptation, and its function is influenced by breed differences and transcriptional plasticity, both of which remain largely unknown in the chicken thyroid transcriptome. In this study, we subjected Bashang Long-tail (BS) and Rhode Island Red (RIR) chickens to either cold or warm environments for 21 weeks and investigated egg production performance, body weight changes, serum thyroid hormone concentrations, and thyroid gland transcriptome profiles. RIR chickens had higher egg production than BS chickens under warm conditions, but BS chickens produced more eggs than RIRs under cold conditions. Furthermore, BS chickens showed stable body weight gain under cold conditions while RIRs did not. These results suggested that BS breed is a preferable candidate for cold-tolerance selection and that the cold adaptability of RIRs should be improved in the future. BS chickens had higher serum thyroid hormone concentrations than RIRs under both environments. RNA-Seq generated 344.3 million paired-end reads from 16 sequencing libraries, and about 90% of the processed reads were concordantly mapped to the chicken reference genome. Differential expression analysis identified 46-1,211 genes in the respective comparisons. With regard to breed differences in the thyroid transcriptome, BS chickens showed higher cell replication and development, and immune response-related activity, while RIR chickens showed higher carbohydrate and protein metabolism activity. The cold environment reduced breed differences in the thyroid transcriptome compared with the warm environment. Transcriptional plasticity analysis revealed different adaptive responses in BS and RIR chickens to cope with the cold, and showed higher responsiveness in BS compared with RIR chickens, suggesting greater adaptability of the thyroid in BS chickens. Moreover, 10,053 differential splicing events were revealed among the groups, with RNA splicing and processing, gene expression, transport, and metabolism being the main affected biological processes, identifying a valuable alternative splicing repertoire for the chicken thyroid. A short isoform of TPO (encoding thyroid peroxidase) containing multiple open reading frames was generated in both breeds by skipping exons 4 and 5 in the cold environment. These findings provide novel clues for future studies of the molecular mechanisms underlying cold adaptation and/or acclimation in chickens. PMID- 29320586 TI - Safety and Efficacy of a 1550nm/1927nm Dual Wavelength Laser for the Treatment of Photodamaged Skin. AB -

BACKGROUND: Fractional photothermolysis (FP) is a popular treatment option for photodamaged skin and addresses shortcomings of ablative skin resurfacing and nonablative dermal remodeling. Previous studies have demonstrated that FP using the 1550nm wavelength has led to improvement of ultrastructural changes and clinical effects associated with photodamaged skin in the deeper dermal structures, while treatment with the 1927nm wavelength has shown clinical effects in the superficial dermis. Both wavelengths produce precise microscopic treatment zones (MTZs) in the skin. The two wavelengths used in combination may optimize the delivery of fractional nonablative resurfacing intended for dermal and epidermal coagulation of photodamage skin.

OBJECTIVES: To evaluate the safety and efficacy of a 1550/1927 Laser System (Fraxel Dual, Solta), using both 1550nm and 1927nm wavelengths in combination for treatment of facial and non facial photodamage.

METHODS: Prospective, multi-center, post-market study in subjects with clinically identifiable photodamage (N=35) (Fitzpatrick skin types I-IV). Both 1550nm and 1927nm wavelengths were used at each treatment visit. Investigator assessment of the affected area(s) occurred at one week, one month and 3 months after a series of up to four treatments. Severity of adverse events (AEs) were assessed using a 4-point scale (where 0=none and 3=marked). Assessments included erythema, edema, hyperkeratosis, hyper- and hypo pigmentation, scarring, itchiness, dryness, and flaking. Severity of photoaging, fine and coarse wrinkling, mottled hyperpigmentation, sallowness, and tactile roughness at baseline was assessed using the same scale. Investigators and subjects assessed overall appearance of photodamage and pigmentation based on a 5 point quartile improvement scale at all follow-up visits (where 0=no improvement and 4=very significant improvement [76%-100%]).

RESULTS: There was a positive treatment effect at all study visits, with moderate improvement (average reduction in severity of 21%-43%) observed 3-months after final treatment. Greatest reduction in severity of other benefit areas was at the 3-month follow up visit, with a 21% and 30% decrease in severity in fine wrinkling and tactile roughness. No AEs or serious AEs were reported. Pain sensation during treatment was tolerable. Anticipated moderate erythema (mean score 1.6+/-0.5) and mild edema (mean score 0.8+/-0.7) were transient and resolved within 7-10 days. Anticipated and transient mild dryness (52% of subjects) and flaking (30%) were reported at the 1-week follow-up. There were no incidences of hyperkeratosis, scarring, or itchiness.

CONCLUSION: Treatments using both wavelengths associated with the combined 1550/1927 Laser System were well tolerated with limited, transient anticipated side effects and no serious AEs. Clinical efficacy in the appearance of photodamage and pigmentation was greatest following a series of up to 3 treatments.

J Drugs Dermatol. 2018;17(1):41-46.

. PMID- 29320587 TI - A Randomized Study to Assess the Efficacy of Skin Rejuvenation Therapy in Combination With Neurotoxin and Full Facial Filler Treatments. AB -

BACKGROUND: Although non-surgical treatment options for facial rejuvenation are well-established, the literature remains limited regarding the combined effect of topical skin treatment with filler and neurotoxin on patient appearance and satisfaction. The objectives of this study were to assess the impact of a skin rejuvenation therapy in combination with neurotoxin or hyaluronic acid filler injection on skin quality and general aesthetic improvement as well as on short-term self-esteem.

METHODS: From 2015 to 2017, 20 female patients were enrolled in our study and were randomized into two groups. Patients in Group A used a basic skin care regimen following hyaluronic acid filler and neurotoxin treatment, while those in Group B utilized the Nu-Derm(r) skin care system (Obagi Medical Products, Inc) afterwards. Each subject and the principal investigator filled out various assessments pre- and post-treatment to evaluate for change in skin quality (Fitzpatrick Wrinkle Assessment Scale [FWAS] and Skin Quality Assessments [SQA]), aesthetic appearance (Global Aesthetic Improvement Scale [GAIS]), patient satisfaction (Subject Satisfaction Assessment [SSA]), and self esteem (State Self-Esteem Scale [SSES]).

RESULTS: Subjects in both treatment groups demonstrated significant improvement in skin quality, as illustrated in the change in FWAS and SQA scores, at 12 weeks after initiating full facial rejuvenation treatment. However, there were no significant differences in FWAS and SQA ratings between the treatment groups. Regarding aesthetic appearance, a statistically significant difference in GAIS scores between Groups A and B was observed at 6 weeks after treatment only. In evaluating for patient satisfaction and self-esteem, there were no significant differences in SSA and SSES ratings over time within each treatment group or between the treatment groups.

CONCLUSIONS: Our study confirms that facial rejuvenation therapy involving hyaluronic acid filler and neurotoxin injections combined with a topical skin treatment regimen leads to improvement in skin quality and aesthetic appearance as well as to patient satisfaction. Additional larger studies are needed to better delineate the most ideal combination facial rejuvenation therapy for optimizing patient appearance and satisfaction.

J Drugs Dermatol. 2018;17(1):48-54.

. PMID- 29320588 TI - A Guide to Tissue-Engineered Skin Substitutes. AB -

Wounds that exhibit delayed healing have a tremendous impact on health care expenditures and place patients at serious risk for severe complications including death. The healing of a chronic wound requires the restoration of multiple factors that normally work in concert to repair the damaged skin barrier. Skin substitutes have shown great promise for use as adjunctive therapies for refractory wounds by providing cells, soluble mediators, and extracellular matrix materials needed to stimulate healing. There are a growing variety of skin substitutes available on the market with many indications, and appropriate selection can impact healing outcomes. Skin substitutes can be broadly divided into cellular and acellular devices, yet within these categories, each product has its own unique composition and mechanism for promoting healing. Here we summarize the characteristics and indications of cellular and acellular matrices commonly used in wound care with the most evidence supported by randomized control trials and prospective studies. This review aims to provide dermatologists and other wound care clinicians with a helpful guide on how to approach skin substitutes, from preparing the wound bed for application, to making the proper selection for patients' individual wounds.

J Drugs Dermatol. 2018;17(1):57-64.

. PMID- 29320590 TI - Treatment of Decolletage Photoaging With Fractional Microneedling Radiofrequency. AB - OBJECTIVES: The objective of this study was to examine the efficacy and safety of a novel fractional microneedling radiofrequency device to improve the appearance of rhytides and skin laxity of the decolletage. METHODS: Twelve subjects received a total of three fractional microneedling radiofrequency treatments with Endymed Intensif (EndyMed Ltd., Cesarea, Israel) at least three weeks apart. Primary outcome measure was clinical efficacy quantified by a patient survey to assess treatment satisfaction as well as a physician Global Aesthetic Improvement Scale (GAIS). Photos were taken before every treatment and at a follow-up appointment. RESULTS: Assessments by two board-certified dermatologists revealed an overall improvement in 67% of patients. Seventy percent of subjects rated their post treatment skin laxity and rhytides as improved, while 60% of patients rated their skin texture as improved. Eighty percent of subjects were at least slightly satisfied with their treatment. Forty percent of subjects would recommend this treatment to others. CONCLUSIONS: Subjects in this study demonstrated an overall improvement in decolletage appearance in regard to skin tightening, wrinkles, and skin texture suggested by overall patient satisfaction (80%) and physician-rated GAIS improvement (67%). This study suggests that fractional microneedling radiofrequency devices are a safe and efficacious way to improve overall decolletage appearance with little down time.

J Drugs Dermatol. 2018;17(1):74-76.

. PMID- 29320589 TI - A Multicenter, Double-Blinded, Randomized, Split-Face Study of the Safety and Efficacy of a Novel Hyaluronic Acid Gel for the Correction of Nasolabial Folds. AB - BACKGROUND: Injectable hyaluronic acid is frequently used to correct volume loss in nasolabial folds. OBJECTIVE: To compare the safety and efficacy of a novel hyaluronic acid gel to a non-animal stabilized hyaluronic acid (Comparator) gel for the correction of nasolabial folds (NLF). METHODS: Qualified subjects had NLF with a Wrinkle Severity Rating Scale (WSRS) score of 3 or 4 (moderate or severe). NLFs were treated with Test Product on one side of the face and Comparator on the other side of the face (facial side randomly assigned). Improvement from baseline was evaluated at weeks 1, 2, 4, 12, and 24 weeks. The primary study endpoint was the mean change in WSRS score from baseline to week 24. RESULTS: The mean changes in WSRS score from baseline were 1.02 +/-0.689 for Test Product and 0.91+/-0.762 for Comparator. The mean difference in change from baseline in WSRS scoring (Comparator minus Test Product) at week 24 was -0.11 (-0.225-0.001, 95% confidence interval [CI]). The upper boundary (0.001) of the 95% CI was less than the prespecified non-inferiority limit of 0.50, indicating that the Test Product was non-inferior to the Comparator. No subject discontinued the study due to adverse events. CONCLUSION: The Test Product is safe and non-inferior to the Comparator for the correction of nasolabial folds. The Test Product was associated with less swelling, pain, and overall severity of treatment-emergent adverse events than the Comparator.

J Drugs Dermatol. 2018;17(1):66 73.

. PMID- 29320591 TI - The Use of an Over-the-Counter Hand Cream With Sweet Almond Oil for the Treatment of Hand Dermatitis. AB - Hand dermatitis is estimated to affect greater than 15% of the general population. Childhood eczema, frequent hand washing, and occupational exposure to chemicals are predisposing factors. Hand dermatitis treatment involves both prevention of outbreaks and treatment of active disease. Moisturizers are essential to protect the skin from the environment, enhance hydration, and repair the skin barrier. They have been shown in large studies to prevent occupational related breakouts. Natural oils are commonly used in moisturizers for their moisturizing and emollient properties. Sweet almond oil is an oil that contains high levels of fatty acids and has been used for centuries to treat skin diseases such as eczema and psoriasis. In this study, a moisturizer with 7% sweet almond oil and 2% colloidal oatmeal was found to be both safe and effective in treating patients with moderate to severe hand dermatitis.

J Drugs Dermatol. 2018;17(1):78-82.

. PMID- 29320592 TI - Injectable Non-Animal Stabilized Hyaluronic Acid as a Skin Quality Booster: An Expert Panel Consensus. AB - Hyaluronic acid (HA) is used extensively in aesthetic medicine thanks to its documented role in skin rejuvenation. The specific applications of HA-based products are not always fully acknowledged due to a lack of consistent recommendations. In this paper, the authors have summarized available published data on the range of applications of non-animal stabilized hyaluronic acid (NASHA(r)) gel skin boosters (NSBs) in several anatomical areas and types of patient, as well as their own recommendations. Overall, the panel agreed that a standard initial protocol treatment of up to 3 sessions, followed by a maintenance schedule, would allow patients to improve and then preserve skin quality over time. Indeed, distinct effects are evident after the first session, but a progressive enhancement of skin texture is detectable for up to 12 months after repeat treatment at 4 to 6 month intervals. Moreover, the authors agreed that the NASHA gel, reaching the dermis, is able to reestablish a greater degree of hydration and stimulate collagen that, in turn, restores the volume and density of the skin. Thus, a strong consensus was reached that NSB procedures are minimally invasive, safe, and effective, and designed to improve skin texture and maintain skin quality.

J Drugs Dermatol. 2018;17(1):83-88.

. PMID- 29320593 TI - Injection Depth in Intradermal Therapy: Update and Correction of Published Data. AB - BACKGROUND: This paper sought to compare calculated injection depth data with published report claims concerning intradermal therapy and skin rejuvenation of the face, hands, neck, and decollete. OBJECTIVE: A mathematical formula was employed to assess the injection depth, and data from literature were retrieved and compared with the calculated figures to determine whether the claims about the injection depth proved correct. METHODS: Based on a study by Della Volpe et al., involving 140 skin residues adapted for plastic surgery, we have calculated injection depths from published reports on intradermal therapy and skin rejuvenation while comparing these figures with the published injection depth claims. RESULTS: Most injections were not performed at the claimed depth, with over 70% of them carried out in the fat layer, thus, the hypodermis. This is not the recommended depth for a refined injection technique in the intradermal therapy field. CONCLUSION: Whilst examining our study results, two different possibilities come to mind. We must either: 1) review and correct the existing histological classification; and/or 2) better learn to correctly inject in the superficial-dermis, mid-dermis, and deep-dermis. In other words, a perfect control over the needle penetration angle and implanted part appears urgently required.

J Drugs Dermatol. 2018;17(1):89-96.

. PMID- 29320594 TI - Pivotal Trial of the Efficacy and Safety of Oxymetazoline Cream 1.0% for the Treatment of Persistent Facial Erythema Associated With Rosacea: Findings from the First REVEAL Trial. AB - An unmet need exists for a safe, tolerable, effective treatment for moderate to severe persistent facial erythema in patients with rosacea. This pivotal phase 3, multicenter, double-blind study evaluated the efficacy and safety of topical oxymetazoline in patients with facial erythema associated with moderate to severe rosacea. Patients were randomly assigned to treatment with oxymetazoline hydrochloride cream 1.0% or vehicle applied once daily for 29 days, and were followed for 28 days posttreatment. The primary efficacy outcome was having at least a 2-grade decrease from baseline on both the Clinician Erythema Assessment (CEA) and the Subject Self-Assessment for rosacea facial redness (SSA) scales (composite success) at 3, 6, 9, and 12 hours postdose on day 29. Safety assessments included treatment-emergent adverse events (TEAEs) and posttreatment worsening of erythema (composite CEA/SSA increase of 1-grade severity from baseline; rebound effect). A total of 440 patients (mean age, 49.5 years; 78.9% females) were randomized (oxymetazoline, n=222; vehicle, n=218); most had moderate erythema. On day 29, significantly greater proportions of oxymetazoline recipients achieved the primary efficacy outcome at each time point (P less than 0.02) and overall (P less than 0.001) compared with vehicle recipients. The incidence of discontinuation due to TEAEs was low in both groups (oxymetazoline group, 1.8%; vehicle group, 0.5%). The most common TEAEs reported during the entire study period were application-site dermatitis, application-site erythema, and headache in the oxymetazoline group (1.4% each), and headache (0.9%) in the vehicle group. Following cessation of treatment, low proportions of patients experienced rebound effect (oxymetazoline group, 2.2%; vehicle group, 1.1%). Oxymetazoline applied to the face once daily for 29 days was effective, safe, and well tolerated in patients with moderate to severe persistent facial erythema of rosacea.

J Drugs Dermatol. 2018;17(1):97-105.

. PMID- 29320595 TI - Safety and Efficacy of a Non-Invasive 1060 nm Diode Laser for Fat Reduction of the Abdomen. AB - BACKGROUND: Changes in temperature are known to produce apoptosis in adipocytes. This study examines the use of a non-invasive treatment that applies 1060 nm laser energy transcutaneously to hyperthermically induce disruption of fat cells in the abdomen. METHODS: Thirty-five subjects received application of 1060 nm laser on the abdomen for fat reduction. Ultrasound images and high-resolution two dimensional photography were recorded at baseline, 6 weeks, and 12 weeks post treatment. Subjects maintained a stable diet and exercise routine throughout the course of the study. Weight was recorded at baseline and each follow-up visit. Three board certified dermatologists were trained as blinded evaluators and tasked with identifying before and after photographs from randomized, paired baseline, and 12-week photographs. Ultrasound images were used to measure the fat thickness change from baseline at 6 and 12 weeks. Level of patient satisfaction was graded at 12 weeks using a 6 point Likert scale. REULTS: 23% of subjects were Fitzpatrick IV-VI. Blinded evaluators correctly identified the post-treatment photograph 95% of the time (88%, 97%, and 100%). Mean reduction in fat layer thickness from baseline was statistically significant (P less than 0.001) at both 6 weeks (1.5 +/-1.23 mm) and 12 weeks (2.65 +/-1.41 mm). Mean weight change was +0.1 lb. Side effects were mild to moderate including edema, tenderness, and induration mostly resolving within 1-3 weeks post treatment. No serious adverse events were reported. CONCLUSION: 1060 nm based laser treatment can consistently reduce the fat contour in the abdomen with an excellent safety profile in all skin types. The study met all three of its prospectively defined endpoints of success.

J Drugs Dermatol. 2018;17(1):106-112.

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. PMID- 29320596 TI - Double Blind, Placebo Controlled Evaluation of a Novel Skin Lightening Agent. AB - Melasma remains a troubling problem for physicans and patients alike. It is a chronic irregular, symmetric hyperpigmentation seen most often in women. In this study, a unique combination of ingredients with non-irritating properties was tested for treatment of melasma. In a double blind, placebo controlled, split face trial, 17 patients with melasma were treated on one half of the face, left or right, while the other received placebo control. All patients used sunscreen on both sides. Measurement with a colorimeter (Mexameter) was taken at baseline and after 8 weeks of daily use. The active side showed an objective decrease in hyperpigmentation of 14.60% while the control side showed a decrease of 9.82%. We conclude the product provides a non-irritating effective therapy for melasma.

J Drugs Dermatol. 2018;17(1):113-115.

. PMID- 29320597 TI - Realistic Sunscreen Durability: A Randomized, Double-blinded, Controlled Clinical Study. AB - BACKGROUND: Studies show that sunscreen under real-life conditions is often not reapplied and/or applied insufficiently. This study investigated the durability of 2 current sunscreens with different SPF protection over an 8-hour period under simulated real-life conditions. METHODS: Participants (n=24) were randomized into two study groups utilizing either 2 mg/cm2 (FDA testing concentration) or 1 mg/cm2 (real-life application levels) of sunscreen. Two current SPF 15 and 70 sunscreens were applied to test spots on each participant's back. SPF values were obtained at baseline, 3.5, and 8 hours after initial application, during which subjects completed 30 minutes of moderate exercise followed by 80 minutes of water exposure. RESULTS: Participants in both dose study groups revealed only a 15-40% overall decrease in their SPF protection 8 hours after application. The study group that received half the FDA test concentration of sunscreen achieved approximately half or less the labeled SPF. At 8 hours, the test sites that received SPF 70 maintained an average SPF greater than 64 (2 mg/cm2 application) and 26 (1 mg/cm2 application). Similarly, the SPF 15 product test sites revealed an in vivo protection of 13 (2 mg/cm2) and 7 (1 mg/cm2). CONCLUSION: This study demonstrates that current sunscreens may be durable on skin even following significant exercise and water exposure, suggesting that reapplication intervals may be longer than currently recommended. In addition, the higher SPF sunscreen maintained a skin cancer-protective level of SPF following extended use.

J Drugs Dermatol. 2018;17(1):116-117.

. PMID- 29320598 TI - Eruptive Sebaceous Hyperplasia: A Rare Consequence of Systemic Corticosteroids. AB - BACKGROUND: Eruptive sebaceous hyperplasia is a rare and poorly understood consequence of immunosuppression, most commonly with cyclosporine, following organ transplantation. To date, there have been no reports documenting eruptive sebaceous hyperplasia associated with the utilization of immunosuppression outside of this clinical scenario. OBSERVATION: A 43-year-old Caucasian male with a significant history for Crohn's disease presented with the sudden appearance of multiple asymptomatic growths now present for several weeks. They were first noted two weeks following the initiation of a slow prednisone taper prescribed for a recent exacerbation of Crohn's disease. Skin examination revealed multiple 1-3mm, soft, skin colored to yellowish, dome-shaped, umbilicated papules on the forehead and the bilateral lateral/malar cheeks, clinically suggestive and confirmed histologically as sebaceous hyperplasia. CONCLUSION: To our knowledge, this is the first reported case of eruptive sebaceous hyperplasia secondary to the use of prednisone in a patient with Crohn's disease. This case brings awareness to the unique side effect of prednisone induced sebaceous hyperplasia, and demonstrates the importance of educating patients with Crohn's disease of this potential side effect when prescribing this medication.

J Drugs Dermatol. 2018;17(1):118-120.

. PMID- 29320599 TI - Asymmetric Catalytic Preparation of Polysubstituted Cyclopropanol and Cyclopropylamine Derivatives. AB - The catalytic asymmetric carbometalation of cyclopropenes followed by either an electrophilic oxidation or amination reaction provides a unique approach to the formation of diastereomerically pure and enantiomerically enriched cyclopropanol and cyclopropylamine derivatives, respectively. PMID- 29320600 TI - Providing physicians with feedback on medication adherence for people with chronic diseases taking long-term medication. AB - BACKGROUND: Poor medication adherence decreases treatment efficacy and worsens clinical outcomes, but average rates of adherence to long-term pharmacological treatments for chronic illnesses are only about 50%. Interventions for improving medication adherence largely focus on patients rather than on physicians; however, the strategies shown to be effective are complex and difficult to implement in clinical practice. There is a need for new care models addressing the problem of medication adherence, integrating this problem into the patient care process. Physicians tend to overestimate how well patients take their medication as prescribed. This can lead to missed opportunities to change medications, solve adverse effects, or propose the use of reminders in order to improve patients' adherence. Thus, providing physicians with feedback on medication adherence has the potential to prompt changes that improve their patients' adherence to prescribed medications. OBJECTIVES: To assess the effects of providing physicians with feedback about their patients' medication adherence for improving adherence. We also assessed the effects of the intervention on patient outcomes, health resource use, and processes of care. SEARCH METHODS: We conducted a systematic search of the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and Embase, all from database inception to December 2016 and without any language restriction. We also searched ISI Web of Science, two trials registers, and grey literature. SELECTION CRITERIA: We included randomised trials, controlled before-after studies, and interrupted time series studies that compared the effects of providing feedback to physicians about their patients' adherence to prescribed long-term medications for chronic diseases versus usual care. We included published or unpublished studies in any language. Participants included any physician and any patient prescribed with long-term medication for chronic disease. We included interventions providing the prescribing physician with information about patient adherence to medication. Only studies in which feedback to the physician was the sole intervention or the essential component of a multifaceted intervention were eligible. In the comparison groups, the physicians should not have had access to information about their patients' adherence to medication. We considered the following outcomes: medication adherence, patient outcomes, health resource use, processes of care, and adverse events. DATA COLLECTION AND ANALYSIS: Two independent review authors extracted and analysed all data using standard methodological procedures expected by Cochrane and the Effective Practice and Organisation of Care group. Due to heterogeneity in study methodology, comparison groups, intervention settings, and measurements of outcomes, we did not carry out meta-analysis. We describe the impact of interventions on outcomes in tabular form and make a qualitative assessment of the effects of studies. MAIN RESULTS: We included nine studies (23,255 patient participants): eight randomised trials and one interrupted time series analysis. The studies took place in primary care and other outpatient settings in the USA and Canada. Seven interventions involved the systematic provision of feedback to physicians concerning all their patients' adherence to medication, and two interventions involved issuing an alert for non-adherent patients only. Seven studies used pharmacy refill data to assess medication adherence, and two used an electronic device or self-reporting. The definition of adherence differed across studies, making comparisons difficult. Eight studies were at high risk of bias, and one study was at unclear risk of bias. The most frequent source of bias was lack of protection against contamination.Providing physicians with feedback may lead to little or no difference in medication adherence (seven studies, 22,924 patients), patient outcomes (two studies, 1292 patients), or health resource use (two studies, 4181 patients). Providing physicians with feedback on medication adherence may improve processes of care (e.g. more medication changes, dialogue with patient, management of uncontrolled hypertension) compared to usual care (four studies, 2780 patients). None of the studies reported an adverse event due to the intervention. The certainty of evidence was low for all outcomes, mainly due to high risk of bias, high heterogeneity across studies, and indirectness of evidence. AUTHORS' CONCLUSIONS: Across nine studies, we observed little or no evidence that provision of feedback to physicians regarding their patients adherence to prescribed medication improved medication adherence, patient outcomes, or health resource use. Feedback about medication adherence may improve processes of care, but due to the small number of studies assessing this outcome and high risk of bias, we cannot draw firm conclusions on the effect of feedback on this outcome. Future research should use a clear, standardised definition of medication adherence and cluster randomisation to avoid the risk of contamination. PMID- 29320601 TI - Surfactant-Enhanced Electroosmotic Flushing in a Trichlorobenzene Contaminated Clayey Soil. AB - Remediation of the sites contaminated with organic contaminants, such as chlorobenzenes, remains a challenging issue. Electroosmotic flushing can be a promising approach which is based on mechanism of electrokinetic remediation for removal of organic contaminants from fluids in low-permeability soil. To select an optimum surfactant that can effectively enhance electroosmotic flushing, three common surfactants, Triton X-100 (EK2), Tween 80 (EK3), and a mixture of sodium dodecyl sulfate and Triton X-100 (EK4) buffered with Na2 HPO4 /NaH2 PO4 solution, were tested. The efficiency of each kind of surfactant was evaluated using a three-dimensional box filled with a clayey soil spiked with 1,2,4 trichlorobenzene, and compared with a test (EK1) without surfactant. The results demonstrated that the buffer solutions efficiently neutralized H+ and OH- produced by electrolysis. EK3 with Tween 80 added in the flushing solution reached the highest electroosmotic permeability of 10-4 cm2 /v/s and achieved a notably high cumulative electroosmotic flow (EOF) of 5067 mL within 6 d, which was 6.3, 3.4, and 4.2 times higher than that in EK1, EK2, and EK4, respectively. There were 420 mL more cumulative EOF obtained after 50 h of electrical application in EK4 than in EK2. The introduction of nonreactive ions can increase the current, thereby benefiting the EOF. Both the higher pH caused by the buffer and the application of nonionic surfactants can make the zeta potential more negative, thereby increasing the EOF. Tween 80 can be recommended as the best flushing solution for removing organic contaminants from sites when electrokinetic remediation is applied. PMID- 29320602 TI - When metformin is not enough: Pros and cons of SGLT2 and DPP-4 inhibitors as a second line therapy. AB - The newer oral therapies for type 2 diabetes mellitus, dipeptidyl peptidase-4 (DPP-4) inhibitors and sodium glucose cotransporter 2 (SGLT2) inhibitors, have advantages over older agents. Dipeptidyl peptidase-4 inhibitors are weight neutral and have few adverse effects. Sodium glucose cotransporter 2 inhibitors have additional benefits: weight loss, blood pressure reduction, cardiovascular risk reduction, and renoprotective effects. Sodium glucose cotransporter 2 inhibitors have increased risk of urogenital infections and possible risk of "euglycaemic" diabetic ketoacidosis. It is important to balance the benefits over the older-oral therapies as these agents are more expensive; yet some analyses suggest that they are within the limits of what is considered cost-effective in health care. We discuss the relative merits and drawbacks of these 2 classes and consider their roles in the treatment of type 2 diabetes mellitus. We suggest a number of patient profiles where early use of these agents could be used. We favour the use of SGLT2 inhibitors over DPP-4 inhibitors as add on therapy to metformin when glycaemic targets have not been achieved given their similar glycaemic efficacy and the additional benefits of SGLT2 inhibitors. We particularly favour SGLT2 inhibitors in those where additional weight loss and blood pressure reductions are desired, and in patients with heart failure or cardiovascular disease. Care should be taken to warn patients about genital fungal infections and to avoid use in people with risk factors for SGLT2 associated ketoacidosis. We favour DPP-4 inhibitors in those where side effects of other agents are of concern, the frail elderly population, and those with renal disease precluding SGTL2 inhibitor use. PMID- 29320603 TI - Drug management for acute tonic-clonic convulsions including convulsive status epilepticus in children. AB - BACKGROUND: Tonic-clonic convulsions and convulsive status epilepticus (currently defined as a tonic-clonic convulsion lasting at least 30 minutes) are medical emergencies and require urgent and appropriate anticonvulsant treatment. International consensus is that an anticonvulsant drug should be administered for any tonic-clonic convulsion that has been continuing for at least five minutes. Benzodiazepines (diazepam, lorazepam, midazolam) are traditionally regarded as first-line drugs and phenobarbital, phenytoin and paraldehyde as second-line drugs. This is an update of a Cochrane Review first published in 2002 and updated in 2008. OBJECTIVES: To evaluate the effectiveness and safety of anticonvulsant drugs used to treat any acute tonic-clonic convulsion of any duration, including established convulsive (tonic-clonic) status epilepticus in children who present to a hospital or emergency medical department. SEARCH METHODS: For the latest update we searched the Cochrane Epilepsy Group's Specialised Register (23 May 2017), the Cochrane Central Register of Controlled Trials (CENTRAL) via the Cochrane Register of Studies Online (CRSO, 23 May 2017), MEDLINE (Ovid, 1946 to 23 May 2017), ClinicalTrials.gov (23 May 2017), and the WHO International Clinical Trials Registry Platform (ICTRP, 23 May 2017). SELECTION CRITERIA: Randomised and quasi-randomised trials comparing any anticonvulsant drugs used for the treatment of an acute tonic-clonic convulsion including convulsive status epilepticus in children. DATA COLLECTION AND ANALYSIS: Two review authors independently assessed trials for inclusion and extracted data. We contacted study authors for additional information. MAIN RESULTS: The review includes 18 randomised trials involving 2199 participants, and a range of drug treatment options, doses and routes of administration (rectal, buccal, nasal, intramuscular and intravenous). The studies vary by design, setting and population, both in terms of their ages and also in their clinical situation. We have made many comparisons of drugs and of routes of administration of drugs in this review; our key findings are as follows:(1) This review provides only low- to very low quality evidence comparing buccal midazolam with rectal diazepam for the treatment of acute tonic-clonic convulsions (risk ratio (RR) for seizure cessation 1.25, 95% confidence interval (CI) 1.13 to 1.38; 4 trials; 690 children). However, there is uncertainty about the effect and therefore insufficient evidence to support its use. There were no included studies which compare intranasal and buccal midazolam.(2) Buccal and intranasal anticonvulsants were shown to lead to similar rates of seizure cessation as intravenous anticonvulsants, e.g. intranasal lorazepam appears to be as effective as intravenous lorazepam (RR 0.96, 95% CI 0.82 to 1.13; 1 trial; 141 children; high quality evidence) and intranasal midazolam was equivalent to intravenous diazepam (RR 0.98, 95% CI 0.91 to 1.06; 2 trials; 122 children; moderate-quality evidence).(3) Intramuscular midazolam also showed a similar rate of seizure cessation to intravenous diazepam (RR 0.97, 95% CI 0.87 to 1.09; 2 trials; 105 children; low-quality evidence).(4) For intravenous routes of administration, lorazepam appears to be as effective as diazepam in stopping acute tonic clonic convulsions: RR 1.04, 95% CI 0.94 to 1.16; 3 trials; 414 children; low-quality evidence. Furthermore, we found no statistically significant or clinically important differences between intravenous midazolam and diazepam (RR for seizure cessation 1.08, 95% CI 0.97 to 1.21; 1 trial; 80 children; moderate-quality evidence) or intravenous midazolam and lorazepam (RR for seizure cessation 0.98, 95% CI 0.91 to 1.04; 1 trial; 80 children; moderate-quality evidence). In general, intravenously-administered anticonvulsants led to more rapid seizure cessation but this was usually compromised by the time taken to establish intravenous access.(5) There is limited evidence from a single trial to suggest that intranasal lorazepam may be more effective than intramuscular paraldehyde in stopping acute tonic-clonic convulsions (RR 1.22, 95% CI 0.99 to 1.52; 160 children; moderate-quality evidence).(6) Adverse side effects were observed and reported very infrequently in the included studies. Respiratory depression was the most common and most clinically relevant side effect and, where reported, the frequency of this adverse event was observed in 0% to up to 18% of children. None of the studies individually demonstrated any difference in the rates of respiratory depression between the different anticonvulsants or their different routes of administration; but when pooled, three studies (439 children) provided moderate-quality evidence that lorazepam was significantly associated with fewer occurrences of respiratory depression than diazepam (RR 0.72, 95% CI 0.55 to 0.93).Much of the evidence provided in this review is of mostly moderate to high quality. However, the quality of the evidence provided for some important outcomes is low to very low, particularly for comparisons of non-intravenous routes of drug administration. Low- to very low-quality evidence was provided where limited data and imprecise results were available for analysis, methodological inadequacies were present in some studies which may have introduced bias into the results, study settings were not applicable to wider clinical practice, and where inconsistency was present in some pooled analyses. AUTHORS' CONCLUSIONS: We have not identified any new high-quality evidence on the efficacy or safety of an anticonvulsant in stopping an acute tonic-clonic convulsion that would inform clinical practice. There appears to be a very low risk of adverse events, specifically respiratory depression. Intravenous lorazepam and diazepam appear to be associated with similar rates of seizure cessation and respiratory depression. Although intravenous lorazepam and intravenous diazepam lead to more rapid seizure cessation, the time taken to obtain intravenous access may undermine this effect. In the absence of intravenous access, buccal midazolam or rectal diazepam are therefore acceptable first-line anticonvulsants for the treatment of an acute tonic-clonic convulsion that has lasted at least five minutes. There is no evidence provided by this review to support the use of intranasal midazolam or lorazepam as alternatives to buccal midazolam or rectal diazepam. PMID- 29320604 TI - Reconstruction of molecular network evolution from cross-sectional omics data. AB - Cross-sectional studies may shed light on the evolution of a disease like cancer through the comparison of patient traits among disease stages. This problem is especially challenging when a gene-gene interaction network needs to be reconstructed from omics data, and, in addition, the patients of each stage need not form a homogeneous group. Here, the problem is operationalized as the estimation of stage-wise mixtures of Gaussian graphical models (GGMs) from high dimensional data. These mixtures are fitted by a (fused) ridge penalized EM algorithm. The fused ridge penalty shrinks GGMs of contiguous stages. The (fused) ridge penalty parameters are chosen through cross-validation. The proposed estimation procedures are shown to be consistent and their performance in other respects is studied in simulation. The down-stream exploitation of the fitted GGMs is outlined. In a data illustration the methodology is employed to identify gene-gene interaction network changes in the transition from normal to cancer prostate tissue. PMID- 29320605 TI - Activation of seminal root primordia during wheat domestication reveals underlying mechanisms of plant resilience. AB - Seminal roots constitute the initial wheat root system and provide the main route for water absorption during early stages of development. Seminal root number (SRN) varies among species. However, the mechanisms through which SRN is controlled and in turn contribute to environmental adaptation are poorly understood. Here, we show that SRN increased upon wheat domestication from 3 to 5 due to the activation of 2 root primordia that are suppressed in wild wheat, a trait controlled by loci expressed in the germinating embryo. Suppression of root primordia did not limit water uptake, indicating that 3 seminal roots is adequate to maintain growth during seedling development. The persistence of roots at their primordial state promoted seedling recovery from water stress through reactivation of suppressed primordia upon rehydration. Our findings suggest that under well-watered conditions, SRN is not a limiting factor, and excessive number of roots may be costly and maladaptive. Following water stress, lack of substantial root system suppresses growth and rapid recovery of the root system is essential for seedling recovery. This study underscores SRN as key adaptive trait that was reshaped upon domestication. The maintenance of roots at their primordial state during seedling development may be regarded as seedling protective mechanism against water stress. PMID- 29320606 TI - Splitting Water by Electrochemistry and Artificial Photosynthesis: Excellent Science but a Nightmare of Translation? AB - Water splitting to its elements, either by electrochemistry or by solar light, is among the most covered areas in nanostructured functional materials. This personal account article analyzes potential downstream translation problems and reviews alternative chemistries with a potential higher return. Liberation of oxygen for accepting the holes is a kinetically demanding half reaction afflicted with kinetic hindrances and high overpotentials, while at the same time no marketable value is created (atmospheric oxygen is free to use). In spite of exciting science created, application in real industrial set-ups is currently impossible, and possible funding promises to contribute to a sustainable society become a debt difficult to return. We discuss possible alternative targets of (photo)electrochemistry as entry points where chemical value products and technical oxidants are created, with partially greater ease, lower losses, and higher benefits. PMID- 29320608 TI - Corrigenda. PMID- 29320609 TI - British Small Animal Veterinary Association annual general meeting. PMID- 29320607 TI - Functional analysis of the seven in absentia ubiquitin ligase family in tomato. AB - Seven in absentia (SINA) protein is one subgroup of ubiquitin ligases possessing an N-terminal cysteine-rich really interesting new gene (RING) domain, two zinc finger motifs, and a C-terminal domain responsible for substrate-binding and dimerization. In tomato (Solanum lycopersicum), the SINA gene family has six members, and we characterize in this study all tomato SINA (SlSINA) genes and the gene products. Our results show that SlSINA genes are differentially regulated in leaf, bud, stem, flower, and root. All SlSINA proteins possess RING-dependent E3 ubiquitin ligase activity, exhibiting similar specificity towards the E2 ubiquitin-conjugating enzyme. SlSINA1/3/4/5/6 are localized in both cytoplasm and nucleus, whereas SlSINA2 is exclusively localized in the nucleus. Moreover, all SlSINAs can interact with each other for homo- or hetero-dimerization. The functionality of SlSINA proteins has been investigated. SlSINA4 plays a positive role in defense signalling, as manifested by elicitation of E3-dependent hypersensitive response-like cell death; the other SlSINAs are negative regulator and capable to suppress hypersensitive response cell death. Transgenic tomato plants overexpressing SlSINA2 exhibit pale-green leaf phenotype, suggesting SlSINA2 regulates chlorophyll level in plant cells, whereas transgenic tomato plants overexpressing SlSINA5 have altered floral structure with exserted stigma, implicating SlSINA5 plays a role in flower development. PMID- 29320610 TI - Fabry-Perot Oscillation and Room Temperature Lasing in Perovskite Cube-Corner Pyramid Cavities. AB - Recently, organometal halide perovskite-based optoelectronics, particularly lasers, have attracted intensive attentions because of its outstanding spectral coherence, low threshold, and wideband tunability. In this work, high-quality CH3 NH3 PbBr3 single crystals with a unique shape of cube-corner pyramids are synthesized on mica substrates using chemical vapor deposition method. These micropyramids naturally form cube-corner cavities, which are eminent candidates for small-sized resonators and retroreflectors. The as-grown perovskites show strong emission ~530 nm in the vertical direction at room temperature. A special Fabry-Perot (F-P) mode is employed to interpret the light confinement in the cavity. Lasing from the perovskite pyramids is observed from 80 to 200 K, with threshold ranging from ~92 uJ cm-2 to 2.2 mJ cm-2 , yielding a characteristic temperature of T0 = 35 K. By coating a thin layer of Ag film, the threshold is reduced from ~92 to 26 uJ cm-2 , which is accompanied by room temperature lasing with a threshold of ~75 uJ cm-2 . This work advocates the prospect of shape engineered perovskite crystals toward developing micro-sized optoelectronic devices and potentially investigating light-matter coupling in quantum optics. PMID- 29320611 TI - Designing Novel Nonsymmetric Ag/AgI Nanoplates for Superior Photocatalytic Activity. AB - Precisely engineering the decoration of metal nanoparticles on the special surface of semiconductor represents a promising strategy to design efficient metal-semiconductor heterostructured photocatalysts. This study demonstrates a versatile soft-template method to fabricate a novel nonsymmetrical heterostructured Ag/AgI nanoplate, in which only one side surface of the nanoplate is covered with uniform 2D Ag nanoweb. Compared with symmetrical heterostructure, the nonsymmetrical heterostructure may further facilitate the separation of photogenerated electron-hole pairs and shows a greatly enhanced photocatalytic activity. This study may open up a new way to improve the photocatalytic property by synthesizing nonsymmetrical metal-semiconductor composites. PMID- 29320612 TI - Precise Synthesis of Well-Defined Inorganic-Organic Hybrid Particles. AB - Synthesis of hybrid particles toward precisely designed hierarchical nanoarchitectures is summarized. In order to satisfy the demands for a variety of materials' performances, the selection of materials, composition and synthesis is carefully done. Flow reactors are one of the useful synthetic means to prepare hybrid materials, especially those with hierarchically and precisely designed multi-components hybrid particles, owing to the efficient mixing and heat exchange in the reactor as well as its connectable (both parallel and sequential) feature. In this review article, after the summary of the preparation of hybrids based on oxides and organics through conventional batch reactors, the application of flow reactors to the preparation of various hybrid particles is introduced to highlight the present status and future possibility of the flow reactor synthesis. PMID- 29320613 TI - Halloysite Nanotubes for Cleaning, Consolidation and Protection. AB - Herein, we report our recent research concerning the development of halloysite based protocols for cleaning, consolidation and protection purposes. Surface modification of halloysite cavity by anionic surfactants was explored to fabricate inorganic micelles able to solubilize hydrophobic contaminants. Hybrid dispersions based on halloysite and ecocompatible polymers were tested as consolidants for paper and waterlogged archaeological woods. Encapsulation of deacidifying and flame retardant agents within the halloysite lumen was conducted with aim to obtain nanofiller with a long-term protection ability. The results prove the suitability and versatility of halloysite nanotubes, which are perspective inorganic nanoparticles within materials science, remedation and conservation of cultural heritage fields. PMID- 29320614 TI - Deep Tumor Penetrating Bioparticulates Inspired Burst Intracellular Drug Release for Precision Chemo-Phototherapy. AB - The relevance of personalized medicine has inspired research for individually concerted diagnosis and therapy. Numerous efforts are devoted to designing drug particulates with capabilities of tumor penetrating and subcellular trafficking to concurrently discharge theranostics in response to multistimulations. In this study, a bioinspired particulate, formulated with whole components of native high density lipoproteins (HDLs) and decorated with the tumor-penetrating peptide iRGD, is proposed to promote tumor penetration of HDLs (pHDLs) together with payloads. Specifically, paclitaxel (PTX), and the NIR fluorescent probe indocyanine green (ICG) are integrated into pHDLs (pHDL/PTX-ICG) for synergetic chemo-phototherapy. Inspired by lipoproteins, pHDLs are not only restored from naturally occurring materials but also possessed artificially endowed functions, leading to an enhanced cellular uptake, higher accumulation, and deep penetration into tumors without causing appreciable adverse effects, compared to reconstituted HDLs or lipid-based nanoparticles. After intravenous administration, pHDL/PTX-ICG performs a burst of intracellular drug release and imaging-guided precision chemo-phototherapy upon NIR irradiation that completely eradicates xenograft tumors. Neither recurrence nor significant toxicity is observed due to maneuvered regional photodynamic and photothermal therapy. Taken together, pHDL/PTX-ICG is proven to be a promising platform to achieve deep tumor penetration and imaging-guided chemo-phototherapy. PMID- 29320615 TI - An intervertebral disc whole organ culture system to investigate proinflammatory and degenerative disc disease condition. AB - The aim of this study was to compare the effect of different disease initiators of degenerative disc disease (DDD) within an intervertebral disc (IVD) organ culture system and to understand the interplay between inflammation and degeneration in the early stage of DDD. Bovine caudal IVDs were cultured within a bioreactor for up to 11 days. Control group was cultured under physiological loading (0.02-0.2 MPa; 0.2 Hz; 2 hr/day) and high glucose (4.5 g/L) medium. Detrimental loading (0.32-0.5 MPa, 5 Hz; 2 hr/day) and low glucose (2 g/L) medium were applied to mimic the condition of abnormal mechanical stress and limited nutrition supply. Tumour necrosis factor alpha (TNF-alpha) was injected into the nucleus pulposus (100 ng per IVD) as a proinflammatory trigger. TNF-alpha combined with detrimental loading and low glucose medium up-regulated interleukin 1beta (IL-1beta), IL-6, and IL-8 gene expression in disc tissue, nitric oxide, and IL-8 release from IVD, which indicate a proinflammatory effect. The combined initiators up-regulated matrix metalloproteinase 1 gene expression, down regulated gene expression of Type I collagen in annulus fibrosus and Type II collagen in nucleus pulposus, and reduced the cell viability. Furthermore, the combined initiators induced a degradative effect, as indicated by markedly higher glycosaminoglycan release into conditioned medium. The combination of detrimental dynamic loading, nutrient deficiency, and TNF-alpha intradiscal injection can synergistically simulate the proinflammatory and degenerative disease condition within DDD. This model will be of high interest to screen therapeutic agents in further preclinical studies for early intervention and treatment of DDD. PMID- 29320616 TI - Epoxy Nanocomposites Filled with Carbon Nanoparticles. AB - Over the past decades, the development of high performance lightweight polymer nanocomposites and, in particular, of epoxy nanocomposites has become one the greatest challenges in material science. The ultimate goal of epoxy nanocomposites is to extrapolate the exceptional intrinsic properties of the nanoparticles to the bulk matrix. However, in spite of the efforts, this objective is still to be attained at commercially attractive scales. Key aspects to achieve this are ultimately the full understanding of network structure, the dispersion degree of the nanoparticles, the interfacial adhesion at the phase boundaries and the control of the localization and orientation of the nanoparticles in the epoxy system. In this Personal Account, we critically discuss the state of the art and evaluate the strategies to overcome these barriers. PMID- 29320617 TI - Gender-related differences in clinical presentation, electrocardiography signs, laboratory markers and outcome in patients with acute pulmonary embolism. AB - Background/Aim: Acute pulmonary embolism (PE) is a potentially life threating event, but there are scarce data about genderrelated differences in this condition. The aim of this study was to identify gender-specific differences in clinical presentation, the diagnosis and outcome between male and female patients with PE. Methods: We analysed the data of 144 consecutive patients with PE (50% women) and compared female and male patients regarding clinical presentation, electrocardiography (ECG) signs, basic laboratory markers and six-month outcome. All the patients confirmed PE by visualized thrombus on the multidetector computed tomography with pulmonary angiography (MDCTPA), ECG and echocardiographic examination at admission. Results: Compared to the men, the women were older and a larger proportion of them was in the third tertile of age (66.0% vs 34.0%, p = 0.008). In univariate analysis the men more often had hemoptysis [OR (95% CI) 3.75 (1.16-12.11)], chest pain [OR (95% CI) 3.31 (1.57 7.00)] febrile state [OR (95% CI) 2.41 (1.12-5.22)] and pneumonia at PE presentation [OR (95% CI) 3.40 (1.25-9.22)] and less likely had heart decompensation early in the course of the disease [OR (95%CI) 0.48 (0.24-0.97)]. In the multivariate analysis a significant difference in the rate of pneumonia and acute heart failure between genders disappeared due to strong influence of age. There was no significant difference in the occurrence of typical ECG signs for PE between the genders. Women had higher level of admission glycaemia [7.7 mmol/L (5.5-8.2 mmol/L) vs 6.9 mmol/L (6.3-9.6 mmol/L), p = 0.006] and total number of leukocytes [10.5 x 109/L (8.8-12.7 x 109/L vs 8.7 x 109/L (7.0-11.6 x 109/L)), p = 0.007]. There was a trend toward higher plasma level of brain natriuretic peptide in women compared to men 127.1 pg/mL (55.0-484.0 pg/mL), p = 0.092] vs [90.3 pg/mL (39.2-308.5 pg/mL). The main 6-month outcomes, death and major bleeding, had similar frequencies in both sexes. Conclusion: There are several important differences between men and women in the clinical presentation of PE and basic laboratory findings which can influence the diagnosis and treatment of PE. PMID- 29320618 TI - Stenting versus non-stenting following uncomplicated ureteroscopic lithotripsy: Comparsion and evaluation of symptoms. AB - Background/Aim: Currently, ureterorenoscopic (URS) stone fragmentation and removal is the treatment of choice for managing ureteral stones, especially mid and distal ones and is advocated as initial management of ureteric stones. The aim of this work was to evaluate the symptoms, necessity, potential benefits and adverse effects of ureteral stent placement after uncomplicated ureteroscopic lithotripsy. Methods: This retrospective-prospective study evaluated a total of 125 patients who had underwent ureteroscopic lithotripsy (URSL). The patients were divided into two groups: stented (59 patients) and unstented (controls, 66 patients). The outcomes measured and compared between the two groups included: stone free rate, postoperative patient pain validated by scale, lower urinary tract symptoms (LUTS), the need for unplanned hospital care, stent related complications, and functional recovery in the form return to normal physical activities. Results: A successful outcome, defined as being stonefree after 12 weeks, was achieved in all 125 (100%) patients. The stone-free rate showed no significant differences between the two groups. LUTS was frequent complaint in the stented group, with statistically significant difference in the domain of frequency/urgency (p = 0.0314). There was a statistically significant difference between the groups in the mean operative time and mean hospitalization time, mean pain visual analog scale (VAS) score and in the use of nonnarcotic analgesic. On the day of the surgery and until postoperative day 3 (POD 3) and postoperative day 5 (POD 5), the pain score was much higher among stented patients than among the controls (p = 0.0001) and non-narcotic analgesic use (p = 0.001) was frequently required in the stented group. Conclusion: Routine placement of ureteral stent after URSL is not mandatory and may be associated with stent side effects. Uncomplicated URSL is safe without stent placement after the treatment. PMID- 29320619 TI - Some specificities in the management of hyperglycemia in patients with diabetic kidney disease. PMID- 29320620 TI - Aortoesophageal and aortobronchial fistula caused by Candida albicans after thoracic endovascular aortic repair. AB - Introduction: Endovascular stent-graft placement has emerged as a minimally invasive alternative to open surgery for the treatment of aortic aneurysms and dissections. There are few reports of stent graft infections and aortoenteric fistula after endovascular thoracic aortic aneurysm repair, and the first multicentric study (Italian survey) showed the incidence of about 2%. Case report: We presented a 69-year-old male patient admitted to our hospital 9 months after thoracic endovascular aortic repair, due to severe chest pain in the left hemithorax and arm refractory to analgesic therapy. Multislice computed tomography (MSCT) showed a collection between the stent graft and the esophagus with thin layers of gas while gastroendoscopy showed visible blood jet 28 cm from incisive teeth. Surgical treatment was performed in collaboration of two teams (esophageal and vascular surgical team). After explantation of the stent graft and in situ reconstruction by using Dacron graft subsequent esophagectomy and graft omentoplasty were made. After almost four weeks patient developed hemoptisia as a sign of aorto bronchial fistula. Treatment with implantation of another aortic cuff of 26 mm was performed. The patient was discharged to the regional center with negative blood culture, normal inflammatory parameters and respiratory function. Three months later the patient suffered deterioration with the severe weight loss and pneumonia caused by Candida albicans and unfortunately died. The survival time from the surgical treatment of aortoesophageal fistula was 4 months Conclusion: Even if endovascular repair of thoracic aortic diseases improves early results, risk of infection should not be forgotten. Postoperative respiratory deterioration and finally hemoptisia could be the symptoms of another fistula. PMID- 29320621 TI - Central retinal vein occlusion: A patient with systemic sclerosis. AB - Introduction: Scleroderma (systemic sclerosis) is a severe chronic connective tissue disease, which results in involvement of numerous internal organs. Changes in the eye are the consequences of organ-specific manifestations of scleroderma or adverse effects of immunosuppressive treatment applied. Case report: We reported a 42-year-old woman with systemic sclerosis and acute deterioration of vision in the left eye, with visual acuity 0.9. After thorough clinical examination, including fluorescein angiography and optical coherence tomography, the diagnosis of nonischemic central retinal vein occlusion was made. Further biochemical, rheumatological and immunological investigation, apart from inactive systemic sclerosis, showed normal findings. Therefore, the cause of central retinal vein occlusion could only be attributed to the microvascular changes in systemic sclerosis. After three months, visual acuity deteriorated to 0.6 due to the development of cystoid macular edema. The patient received intravitreal injection of bevacizumab and after a single dose visual acuity improved to 0.9. After a 6- month follow-up, macular edema resolved and visual acuity stabilized. Conclusion: According to our knowledge and current data from the literature, central retinal vein occlusion is a rare vision threatening manifestation of scleroderma. There are only few published case reports on central vein occlusion in scleroderma patients. Examination of the ocular fundus is recommended for evaluation of vascular disease in patients with systemic sclerosis. PMID- 29320622 TI - Kartagener's syndrome: A case report. AB - Introduction: Kartagener's syndrome is a recessive autosomal disease which is mainly seen to affect ciliary movement. The symptoms of the syndrome are the consequence of the defective motility of the cilia found in the respiratory tract and that results with recurrent lung infections caused by mucus stasis in the bronchi. Case report: A 37-year-old married, male father of one child, presented with a history of productive cough, wheezing, dispnea, headache, temporary fever. In his 9th year of age, 1986, situs inversus, sinusitis and pectus excavatum were diagnosed. In 1994 he was operated for correction of pectus excavatum. Bronchial asthma was diagnosed in 2008 when he was 31. In the last 2 years he had episodes of breathlessness, wheezing, cough, expectoration, headache, fever and fast declining lung function. The patient was treated with combination of inhaled bronchodilatators (inhaled corticosteroids + long-acting beta-2 agonist), and occasional administration of antibiotics, oral prednisolone, mucolytics in episodes of exacerbations of disease over a period of 7-14 days. Conclusion: Treatment for patients with this syndrome has not been established yet, but it is important to control chronic lung infections and prevent declining of lung function. PMID- 29320623 TI - Primary hyperfibrinolysis as the presenting sign of prostate cancer: A case report. AB - Introduction: A bleeding syndrome in the setting of primary hyperfibrinolysis in a prostate cancer patient is only 0.40- 1.65% of cases. The laboratory diagnosis of primary hyperfibrinolysis is based on the increase of biomarkers like D-dimer, fibrinogen split products, plasminogen, and euglobulin lysis test. These tests are not specific for primary hyperfibrinolysis. We reported a rare case of hemorrhagic syndrome caused by primary hyperfibrinolysis as the first clinical symptom of metastatic prostate cancer. Case report: A 64-year-old male was admitted to our hospital with large hematomas in the right pectoral and axillary areas (20 x 7 cm), right hemiabdomen (30 x 30 cm) and the left lumbal area, (25 x 5 cm). The patient had no subjective symptoms nor used any medication. Initial coagulation testing, prothrombin time (PT), and activated partial thromboplastin time (APTT) were within the normal range, while fibrinogen level was extremely low (1.068 g/L) (normal range 2.0-5.0) and the D-dimer assay result was high 1.122 mg/L (normal range < 0.23). The results obtained by rotation thrombelastometry pointed to primary fibrinolysis. Further clinical and laboratory examination indicated progressive malignant prostate disease. First line treatment for the patient was a combined administration of tranexamic acid (3 x 500 mg iv) and transfusion of ten units of cryoprecipitate (400 mL). Next day, fibrinolytic function measurements by rotation thrombelastometry were within the normal ranges. Fibrinogen level was normalized within two days (2.4 g/L). There were no newly developed hematomas. Conclusion: This case report shows primary hyperfibrinolysis with bleeding symptoms, which is an uncommon paraneoplastic phenomenon within expanded prostate malignancy. Rotation thrombelastometry in this severe complication helped to achieve the prompt and proper diagnosis and treatment. PMID- 29320624 TI - Charles Bonnet syndrome. AB - Introduction: Charles Bonnet syndrome (CBS) is a condition that causes visual hallucinations in patients without any mental illnesses. CBS is characterized by the presence of vivid, complex and recurrent visual hallucinations, and do not occur in the setting or as part of delirium or other psychological illnesses. The condition is present in patients who have visual loss due to age-related macular degeneration (AMD), cataracts and/or other ocular diseases that influence vision. Case report: A 81-year-od woman reported to ophthalmologist complaining of visual hallucinations that consisted of white pigeons. Hallucinations were present for two years and she was well aware that hallucinations were unreal. Mental illnesses were excluded by the psychiatrist. Complete ophthalmologic examination was performed, and finding revealed visual acuity of 0.3 (right eye) and 0.5 (left eye), in both eyes cataracts and AMD (wet form). Optical coherence tomography confirmed the fundoscopic finding of AMD. The patient rejected treatment of cataracts and AMD due to old age, and hallucinations persisted. Conclusion: CBS should be considered in patients with visual hallucinations and ocular diseases that influence vision. It is essential to distinguish CBS from mental illnesses, since patients with CBS are fully aware that hallucinations are not real. Awareness of CBS could help physicians upon referring patients to ophthalmologists instead of psychiatrists, and therefore avoid patients being misdiagnosed. PMID- 29320625 TI - Public health risk analysis through evaluation of drinking water safety. PMID- 29320626 TI - Directing Nanoparticle Biodistribution through Evasion and Exploitation of Stab2 Dependent Nanoparticle Uptake. AB - Up to 99% of systemically administered nanoparticles are cleared through the liver. Within the liver, most nanoparticles are thought to be sequestered by macrophages (Kupffer cells), although significant nanoparticle interactions with other hepatic cells have also been observed. To achieve effective cell-specific targeting of drugs through nanoparticle encapsulation, improved mechanistic understanding of nanoparticle-liver interactions is required. Here, we show the caudal vein of the embryonic zebrafish ( Danio rerio) can be used as a model for assessing nanoparticle interactions with mammalian liver sinusoidal (or scavenger) endothelial cells (SECs) and macrophages. We observe that anionic nanoparticles are primarily taken up by SECs and identify an essential requirement for the scavenger receptor, stabilin-2 ( stab2) in this process. Importantly, nanoparticle-SEC interactions can be blocked by dextran sulfate, a competitive inhibitor of stab2 and other scavenger receptors. Finally, we exploit nanoparticle-SEC interactions to demonstrate targeted intracellular drug delivery resulting in the selective deletion of a single blood vessel in the zebrafish embryo. Together, we propose stab2 inhibition or targeting as a general approach for modifying nanoparticle-liver interactions of a wide range of nanomedicines. PMID- 29320627 TI - Wafer-Scale Ultrathin Two-Dimensional Conjugated Microporous Polymers: Preparation and Application in Heterostructure Devices. AB - In this work, we report a universal surface-assisted oxidative polymerization strategy for wafer-scale fabrication of ultrathin two-dimensional conjugated microporous polymers (2D CMPs) on arbitrary substrates under ambient conditions. Three kinds of 2D CMPs with average thickness of 1.5-3.6 nm were prepared on SiO2/Si substrates by using carbazole based monomers. Moreover, 2D CMPs can be grown on reduced graphene oxide (rGO) substrate to construct large-area 2D CMP/rGO heterostructure. As a proof-of-concept demonstration, an organic vertical field-effect transistor based on 2D CMP/rGO heterostructures was fabricated, which exhibited typical p-type behavior with high reproducibility and on/off current ratio. Most importantly, the direct growth of large-area 2D CMPs on arbitrary substrates is compatible with the conventional processes in the semiconductor industry, and therefore is expected to expedite the development of 2D CMPs as building blocks for construction of practical electronic devices. PMID- 29320628 TI - Assessing GW Approaches for Predicting Core Level Binding Energies. AB - Here we present a systematic study on the performance of different GW approaches: G0W0, G0W0 with linearized quasiparticle equation (lin-G0W0), and quasiparticle self-consistent GW (qsGW), in predicting core level binding energies (CLBEs) on a series of representative molecules comparing to Kohn-Sham (KS) orbital energy based results. KS orbital energies obtained using the PBE functional are 20-30 eV lower in energy than experimental values obtained from X-ray photoemission spectroscopy (XPS), showing that any Koopmans-like interpretation of KS core level orbitals fails dramatically. Results from qsGW lead to CLBEs that are closer to experimental values from XPS, yet too large. For the qsGW method, the mean absolute error is about 2 eV, an order of magnitude better than plain KS PBE orbital energies and quite close to predictions from DeltaSCF calculations with the same functional, which are accurate within ~1 eV. Smaller errors of ~0.6 eV are found for qsGW CLBE shifts, again similar to those obtained using DeltaSCF PBE. The computationally more affordable G0W0 approximation leads to results less accurate than qsGW, with an error of ~9 eV for CLBEs and ~0.9 eV for their shifts. Interestingly, starting G0W0 from PBE0 reduces this error to ~4 eV with a slight improvement on the shifts as well (~0.4 eV). The validity of the G0W0 results is however questionable since only linearized quasiparticle equation results can be obtained. The present results pave the way to estimate CLBEs in periodic systems where DeltaSCF calculations are not straightforward although further improvement is clearly needed. PMID- 29320629 TI - The Structural Asymmetry of Mitochondrial Hsp90 (Trap1) Determines Fine Tuning of Functional Dynamics. AB - The Hsp90 family of molecular chaperones oversees the folding of a wide range of client proteins. Hsp90 is a homodimer, whose conformational states and functions are regulated by ATP-binding and hydrolysis. The crystal structure of mitochondrial Hsp90 (Trap1) showed that one of the two protomers in the active state is buckled, resulting in an asymmetric conformation. The asymmetry between the two protomers corresponds to the broadly conserved region responsible for client binding. Moreover, asymmetry determines differential hydrolysis for each protomer, with the buckled conformation favoring ATP processing. Experimental results show that after the first hydrolysis the dimer flips to a different asymmetric state while remaining in a closed conformation for the second hydrolysis. In this model, asymmetry plays a key role in the mechanism that drives chaperone function. Herein, we investigate the nucleotide-dependent internal dynamics of Trap1 with computational approaches. Our results shed light on the relationship between the nucleotide state in the N-terminal domain and the asymmetric modulation of the dynamic and structural properties of the client binding region in the Middle domain. According to our analysis, this is the region that undergoes the most intense dynamic modulation upon nucleotide exchange. This result provides molecular insights into the roles of structural asymmetry in the regulation of Trap1 and suggests that this substructure is a promising target to modulate the functionally oriented aspects of Trap1 dynamics, therefore opening fresh opportunities for the design of selective therapeutics for Trap1-dependent diseases. PMID- 29320630 TI - Structural Insight into the Discrimination between 8-Oxoguanine Glycosidic Conformers by DNA Repair Enzymes: A Molecular Dynamics Study of Human Oxoguanine Glycosylase 1 and Formamidopyrimidine-DNA Glycosylase. AB - hOgg1 and FPG are the primary DNA repair enzymes responsible for removing the major guanine (G) oxidative product, namely, 7,8-dihydro-8-oxoguanine (OG), in humans and bacteria, respectively. While natural G adopts the anti conformation and forms a Watson-Crick pair with cytosine (C), OG can also adopt the syn conformation and form a Hoogsteen pair with adenine (A). hOgg1 removes OG paired with C but is inactive toward the OG:A pair. In contrast, FPG removes OG from OG:C pairs and also exhibits appreciable (although diminished) activity toward OG:A pairs. As a first step toward understanding this difference in activity, we have employed molecular dynamics simulations to examine how the anti and syn conformers of OG are accommodated in the hOgg1 and FPG active sites. When anti-OG is bound, hOgg1 active site residues are properly aligned to initiate catalytic base departure, while geometrical parameters required for the catalytic reaction are not conserved for syn-OG. On the other hand, the FPG catalytic residues are suitably aligned for both OG conformers, with anti-OG being more favorably bound. Thus, our data suggests that the differential ability of hOgg1 and FPG to accommodate the anti- and syn-OG glycosidic conformations is an important factor that contributes to the relative experimental excision rates. Nevertheless, the positions of the nucleophiles with respect to the lesion in the active sites suggest that the reactant complex is poised to initiate catalysis through a similar mechanism for both repair enzymes and supports a recently proposed mechanism in which sugar-ring opening precedes nucleoside deglycosylation. PMID- 29320631 TI - Thermoresponsive- co-Biodegradable Linear-Dendritic Nanoparticles for Sustained Release of Nerve Growth Factor To Promote Neurite Outgrowth. AB - Thermoresponsive and biodegradable linear-dendritic nanoparticles containing poly( N-isopropylacrylamide), poly(l-lactic acid), and poly(l-lysine) dendrons were investigated for sustained release of nerve growth factor (NGF) in response to temperature change. The nanoparticles and their degradants were not cytotoxic to neuron-like PC12 cells for at least one month. The nanoparticles were preferentially taken up by PC12 cells 6-13-times more at temperatures above (37 degrees C) than below (25 degrees C) the lower critical solution temperature of the nanoparticles. NGF could be loaded into the nanoparticles in aqueous solution and slowly released from the nanoparticles for 12 and 33 days at 25 and 37 degrees C, respectively. The released NGF was biologically active by promoting neurite outgrowth of PC12 cells. This work demonstrates a new concept of using thermoresponsive and biodegradable linear-dendritic nanoparticles for thermally targeted and sustained release of NGF and other protein drugs for the treatment of Alzheimer's disease and other neurological disorders. PMID- 29320633 TI - Bioaccumulation of Polybrominated Diphenyl Ethers and Alternative Halogenated Flame Retardants in a Vegetation-Caribou-Wolf Food Chain of the Canadian Arctic. AB - The trophodynamics of halogenated flame retardants (HFRs) including polybrominated diphenyl ethers (PBDEs) and alternative HFRs were investigated in the terrestrial, vegetation-caribou-wolf food chain in the Bathurst Region of northern Canada. The greatest concentrations in vegetation (geometric mean of lichens, moss, grasses, willow, and mushrooms) were of the order 2,4,6 tribromophenyl allyl ether (TBP-AE) (10 ng g-1 lw) > BDE47 (5.5 ng g-1 lw) > BDE99 (3.9 ng g-1 lw) > BDE100 (0.82 ng g-1 lw) > 1,2,3,4,5-pentabromobenzene (PBBz) (0.72 ng g-1 lw). Bioconcentration among types of vegetation was consistent, though it was typically greatest in rootless vegetation (lichens, moss). Biomagnification was limited in mammals; only BDE197, BDE206-208 and ?PBDE biomagnified to caribou from vegetation [biomagnification factors (BMFs) = 2.0 5.1]. Wolves biomagnified BDE28/33, BDE153, BDE154, BDE206, BDE207, and ?PBDE significantly from caribou (BMFs = 2.9-17) but neither mammal biomagnified any alternative HFRs. Only concentrations of BDE28/33, BDE198, nonaBDEs, and ?PBDE increased with trophic level, though the magnitude of biomagnification was low relative to legacy, recalcitrant organochlorine contaminants [trophic magnification factors (TMFs) = 1.3-1.8]. Despite bioaccumulation in vegetation and mammals, the contaminants investigated here exhibited limited biomagnification potential and remained at low parts per billion concentrations in wolves. PMID- 29320632 TI - Increasing the Stability of Recombinant Human Green Cone Pigment. AB - Three types of cone cells exist in the human retina, each containing a different pigment responsible for the initial step of phototransduction. These pigments are distinguished by their specific absorbance maxima: 425 nm (blue), 530 nm (green), and 560 nm (red). Each pigment contains a common chromophore, 11-cis-retinal covalently bound to an opsin protein via a Schiff base. The 11-cis-retinal protonated Schiff base has an absorbance maxima at 440 nm in methanol. Unfortunately, the chemistry that allows the same chromophore to interact with different opsin proteins to tune the absorbance of the resulting pigments to distinct lambdamax values is poorly understood. Rhodopsin is the only pigment with a native structure determined at high resolution. Homology models for cone pigments have been generated, but experimentally determined structures are needed for a precise understanding of spectral tuning. The principal obstacle to solving the structures of cone pigments has been their innate instability in recombinant constructs. By inserting five different thermostabilizing proteins (BRIL, T4L, PGS, RUB, and FLAV) into the recombinant green opsin sequence, constructs were created that were up to 9-fold more stable than WT. Using cellular retinaldehyde binding protein (CRALBP), we developed a quick means of assessing the stability of the green pigment. CRALBP testing also confirmed an additional 48-fold increase in pigment stability when varying the detergent used. These results suggest an efficient protocol for routine purification and stabilization of cone pigments that could be used for high-resolution determination of their structures, as well as for other studies. PMID- 29320634 TI - Continuously Tuning Epitaxial Strains by Thermal Mismatch. AB - Strain engineering of thin films is a conventionally employed approach to enhance material properties and to energetically prefer ground states that would otherwise not be attainable. Controlling strain states in perovskite oxide thin films is usually accomplished through coherent epitaxy by using lattice mismatched substrates with similar crystal structures. However, the limited choice of suitable oxide substrates makes certain strain states experimentally inaccessible and a continuous tuning impossible. Here, we report a strategy to continuously tune epitaxial strains in perovskite films grown on Si(001) by utilizing the large difference of thermal expansion coefficients between the film and the substrate. By establishing an adsorption-controlled growth window for SrTiO3 thin films on Si using hybrid molecular beam epitaxy, the magnitude of strain can be solely attributed to thermal expansion mismatch, which only depends on the difference between growth and room temperature. Second-harmonic generation measurements revealed that structure properties of SrTiO3 films could be tuned by this method using films with different strain states. Our work provides a strategy to generate continuous strain states in oxide/semiconductor pseudomorphic buffer structures that could help achieve desired material functionalities. PMID- 29320636 TI - How do London Dispersion Interactions Impact the Photochemical Processes of Molecular Switches? AB - In the last two decades, linear-response time-dependent density functional theory (LR-TDDFT) has become one of the most widely used approaches for the computation of the excited-state properties of atoms and molecules. Despite its success in describing the photochemistry and the photophysics of a vast majority of molecular systems, its domain of applicability has been limited by several substantial drawbacks. Commonly identified problems of LR-TDDFT include the correct description of Rydberg states, charge-transfer excited states, doubly excited states, and nearly degenerate states. In addition to these widely recognized shortcomings, the approximate functionals used in LR-TDDFT are unable to fully describe London dispersion interactions. In this work, we aim at understanding the impact of van der Waals interactions on the properties of chemical systems beyond their electronic ground state. For this purpose, we compare the results of excited-state energy profiles and dynamic trajectories for the prototypical cis-stilbene molecule with its 3-3',5-5'-tetra-tert-butyl derivative. While the explicit treatment of London dispersion interactions results in negligible changes for the cis-stilbene, we show that these attractive forces have a substantial influence on the energetics and structural evolution of the substituted derivative. In the latter case, intramolecular dispersion interactions impact the outcome of the simulation qualitatively, leading to an increased preference for the photocyclization pathway. The methodological consequences of this work are not uniquely applicable to the illustrative stilbene case. In fact, this molecule is representative of a whole class of chemical situations, where dispersion forces dominate the interactions between the unexcited substituents of a photoexcited chromophore. This is, for instance, a common situation in organic photovoltaics where donor molecules are usually functionalized with long alkyl side chains to improve solubility and assembly. PMID- 29320635 TI - Extending the Propagation Distance of a Silver Nanowire Plasmonic Waveguide with a Dielectric Multilayer Substrate. AB - Chemical-synthesized silver nanowires have been proven as an efficient architecture for plasmonic waveguides, but the high propagation loss prevents their widely applications. Here, we demonstrate that the propagation distance of the plasmons along a silver nanowire can be extended if this nanowire was placed on a dielectric multilayer substrate containing a photonic band gap but not placed on a commonly used glass substrate. The propagation distance at 630 nm wavelength can reach 16 MUm, even when the silver nanowire is as thin as 90 nm in diameter. Experimental and simulation results further show that the polarization of this propagating plasmon mode was nearly parallel to the surface of the dielectric multilayer, so it can be excited by a transverse-electric polarized Bloch surface wave propagating along a polymer nanowire with diameter at only about 170 nm on the same dielectric multilayer. Numerical simulations were also carried out and are consistent with the experiment results. Our work provides a platform with which to extend the propagation distance of the plasmonic waveguide and also for the integration between photonic and plasmonic waveguides on the nanometer scale. PMID- 29320637 TI - Rejuvenating Regenerative Medicine Regulation. PMID- 29320638 TI - What Do We Rate When We Rate Our Health? Decomposing Age-related Contributions to Self-rated Health. AB - Self-ratings of health (SRH) indicate current health-related quality of life and independently predict mortality. Studies show the SRH of older adults appears less influenced by physical health than the SRH of younger adults. But if physical health accounts less for the SRH of older adults, what factors take its place? To understand the relative contributions of social, emotional, and physical states to SRH by age, we analyzed data from the National Health Interview Survey 2006 to 2011 ( N = 153,341). In age-stratified regressions, physical health and functional limitations declined as correlates of SRH for older age strata, while social factors, such as gender and race, increased in importance. Oaxaca-Blinder decomposition showed that if younger respondents had similar health conditions, they would rate their health more poorly than current cohorts of older adults do. The declining influence of physical health on SRH in old age appears to be due in part to displacement by social factors. PMID- 29320639 TI - Minimally Invasive Distal Metatarsal Metaphyseal Osteotomy (DMMO) of the Fifth Metatarsal for Bunionette Correction. AB - BACKGROUND: Different osteotomies have been proposed for the treatment of bunionette deformity. Minimally invasive surgery is now increasingly popular for a variety of forefoot conditions. The aim of this study was to evaluate the outcome following fifth minimally invasive distal metatarsal metaphyseal osteotomy (DMMO) for bunionette deformity. METHODS: Nineteen patients (21 feet) who had symptomatic bunionette deformity and failed conservative treatment between 2014 and 2016 were included in this retrospective study. Clinical data were recorded, and pre- and postoperative Manchester-Oxford Foot Questionnaire (MOXFQ) scores and visual analog scale (VAS) pain score were collected. The mean follow-up was 28 months (range, 12-47). RESULTS: The mean MOXFQ summary index score decreased from 71 (range, 59-81) preoperatively to 10 (range, 0-30) postoperatively. All 3 MOXFQ domains also improved. The average improvement in VAS score was 7. Forefoot swelling and some painful symptoms took an average of 3 months to settle. There were no wound or nerve complications. One patient required a dorsal cheilectomy for a symptomatic prominent dorsolateral callus formation. CONCLUSION: The minimally invasive fifth DMMO for bunionette deformity was a safe and effective technique. It had relatively few complications and led to good clinical results. We believe it is important to warn patients that the forefoot swelling will take months to settle compared to an osteotomy with fixation, and there is a 10% chance of a prominent callus over the osteotomy site. LEVEL OF EVIDENCE: Level IV, retrospective case series. PMID- 29320640 TI - Syme Amputation: A Systematic Review. AB - BACKGROUND: In the decision-making process toward an amputation of the lower extremity, knowledge about patient-related outcomes after amputation and rehabilitation is important. We have not found a systematic review that provides this knowledge for Syme amputation. The aim of this study was to present an overview of outcomes after a Syme amputation grouped according to the International Classification of Functioning, Disability and Health (ICF) model, focusing on body structures and functions, activities, and participation. METHODS: A systematic literature search was performed. Included studies went through 2 selection procedures by 2 independent assessors. Included were all studies concerning Syme amputation with patient-related outcomes. RESULTS: Thirty six studies were included for data extraction, concerning 1056 patients (238 children and 818 adults). Heel pad migration was reported in 49 of 176 (28%), skin problems in 23 of 128 (18%), and bone problems in 42 of 145 (29%) children. No reamputations were reported. All children were fitted with a prosthesis, and 62 of 90 (69%) children participated in sports. Skin problems were reported in 35 of 195 (18%), ulceration or infection in 120 of 512 (23%), residual limb pain in 46 of 181 (25%), and reamputations in 180 of 919 (20%) adults. In total, 247 of 363 (68%) adults were fitted with a prosthesis. Walking aids were used by 45 of 135 (33%) adults. Employment status was unchanged in 147 of 209 (72%) adults. CONCLUSION: In children, no reamputations were necessary and few complications were reported, with good participation in daily life in the majority of children. In adults, more complications and reamputations were reported; nevertheless, most adult amputees became successful prosthesis users. LEVEL OF EVIDENCE: Therapeutic Level III, systematic review containing retrospective cohort studies. PMID- 29320641 TI - AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS AND AMERICAN COLLEGE OF ENDOCRINOLOGY POSITION STATEMENT ON TESTING FOR AUTONOMIC AND SOMATIC NERVE DYSFUNCTION. AB - This document represents the official position of the American Association of Clinical Endocrinologists and the American College of Endocrinology. Where there were no randomized controlled trials or specific U.S. FDA labeling for issues in clinical practice, the participating clinical experts utilized their judgment and experience. Every effort was made to achieve consensus among the committee members. Position statements are meant to provide guidance, but they are not to be considered prescriptive for any individual patient and cannot replace the judgment of a clinician. PMID- 29320642 TI - ENDOCRINE TREATMENT OF GENDER-DYSPHORIC/GENDER-INCONGRUENT PERSONS: AN ENDOCRINE SOCIETY CLINICAL PRACTICE GUIDELINE. PMID- 29320644 TI - CORRECTION. PMID- 29320643 TI - 2017 AMERICAN ASSOCIATION OF CLINICAL ENDOCRINOLOGISTS/ENDOCRINE SOCIETY UPDATE ON TRANSGENDER MEDICINE: CASE DISCUSSIONS. AB - OBJECTIVE: Increased numbers of transgender and gender-nonconforming people are presenting to physicians in the United States and abroad due to increased public recognition and acceptance and increased access to healthcare facilities. However, there are still gaps in medical knowledge among endocrinologists and other health care professionals. The purpose of these cases is to present several common clinical vignettes of transgender people presenting in an office setting that illustrate some of the key recommendations of the Endocrine Society's revised Endocrine Treatment of Gender Dysphoria/Gender Incongruent Persons guidelines, cosponsored by the American Association of Clinical Endocrinologists. METHODS: Cases were developed based on these recently revised guidelines for gender-dysphoric and gender-nonconforming persons. RESULTS: Six cases are presented that illustrate the diagnosis, treatment, and long-term management of trans-gender children and adults based on the revised guidelines for the endocrine care of gender-dysphoric and gender-nonconforming persons. Several key teaching points are presented from the presentation of these cases. CONCLUSION: Endocrinologists should be familiar with the revised guidelines for gender dysphoric and gender-nonconforming persons. Important aspects of care are the diagnosis of gender dysphoria, the timing of treatment with gender-affirming hormones, and the long-term monitoring for potential adverse outcomes. Long-term health outcome studies are needed to further help guide care in this unique population. ABBREVIATIONS: BMI = body mass index GnRH = gonadotropin-releasing hormone HDL = high-density lipoprotein LDL = low-density lipoprotein. PMID- 29320645 TI - LETTER TO THE EDITOR. PMID- 29320646 TI - Transfer of Fresh versus Frozen Embryos in Ovulatory Women. AB - BACKGROUND: Elective frozen-embryo transfer has been shown to result in a higher live-birth rate than fresh-embryo transfer among anovulatory women with the polycystic ovary syndrome. It is uncertain whether frozen-embryo transfer increases live-birth rates among ovulatory women with infertility. METHODS: In this multicenter, randomized trial, we randomly assigned 2157 women who were undergoing their first in vitro fertilization cycle to undergo either fresh embryo transfer or embryo cryopreservation followed by frozen-embryo transfer. Up to two cleavage-stage embryos were transferred in each participant. The primary outcome was a live birth after the first embryo transfer. RESULTS: The live-birth rate did not differ significantly between the frozen-embryo group and the fresh embryo group (48.7% and 50.2%, respectively; relative risk, 0.97; 95% confidence interval [CI], 0.89 to 1.06; P=0.50). There were also no significant between group differences in the rates of implantation, clinical pregnancy, overall pregnancy loss, and ongoing pregnancy. Frozen-embryo transfer resulted in a significantly lower risk of the ovarian hyperstimulation syndrome than fresh embryo transfer (0.6% vs. 2.0%; relative risk, 0.32; 95% CI, 0.14 to 0.74; P=0.005). The risks of obstetrical and neonatal complications and other adverse outcomes did not differ significantly between the two groups. CONCLUSIONS: The live-birth rate did not differ significantly between fresh-embryo transfer and frozen-embryo transfer among ovulatory women with infertility, but frozen-embryo transfer resulted in a lower risk of the ovarian hyperstimulation syndrome. (Funded by the National Key Research and Development Program of China and the National Natural Science Foundation of China; Chinese Clinical Trial Registry number, ChiCTR-IOR-14005406 .). PMID- 29320648 TI - Canakinumab for Atherosclerotic Disease. PMID- 29320650 TI - Cowpox Virus Infection. PMID- 29320649 TI - Romosozumab versus Alendronate and Fracture Risk in Women with Osteoporosis. PMID- 29320651 TI - Oxygen Therapy in Suspected Acute Myocardial Infarction. PMID- 29320647 TI - Long-Term Effects of Inhaled Budesonide for Bronchopulmonary Dysplasia. AB - BACKGROUND: The long-term effects on neurodevelopment of the use of inhaled glucocorticoids in extremely preterm infants for the prevention or treatment of bronchopulmonary dysplasia are uncertain. METHODS: We randomly assigned 863 infants (gestational age, 23 weeks 0 days to 27 weeks 6 days) to receive early (within 24 hours after birth) inhaled budesonide or placebo. The prespecified secondary long-term outcome was neurodevelopmental disability among survivors, defined as a composite of cerebral palsy, cognitive delay (a Mental Development Index score of <85 [1 SD below the mean of 100] on the Bayley Scales of Infant Development, Second Edition, with higher scores on the scale indicating better performance), deafness, or blindness at a corrected age of 18 to 22 months. RESULTS: Adequate data on the prespecified composite long-term outcome were available for 629 infants. Of these infants, 148 (48.1%) of 308 infants assigned to budesonide had neurodevelopmental disability, as compared with 165 (51.4%) of 321 infants assigned to placebo (relative risk, adjusted for gestational age, 0.93; 95% confidence interval [CI], 0.80 to 1.09; P=0.40). There was no significant difference in any of the individual components of the prespecified outcome. There were more deaths in the budesonide group than in the placebo group (82 [19.9%] of 413 infants vs. 58 [14.5%] of 400 infants for whom vital status was available; relative risk, 1.37; 95% CI, 1.01 to 1.86; P=0.04). CONCLUSIONS: Among surviving extremely preterm infants, the rate of neurodevelopmental disability at 2 years did not differ significantly between infants who received early inhaled budesonide for the prevention of bronchopulmonary dysplasia and those who received placebo, but the mortality rate was higher among those who received budesonide. (Funded by the European Union and Chiesi Farmaceutici; ClinicalTrials.gov number, NCT01035190 .). PMID- 29320652 TI - Multiple Sclerosis. PMID- 29320653 TI - In-Person Health Care as Option B. PMID- 29320654 TI - Immune-Related Adverse Events Associated with Immune Checkpoint Blockade. PMID- 29320655 TI - IVF Transfer of Fresh or Frozen Embryos in Women without Polycystic Ovaries. AB - BACKGROUND: Among women who are undergoing in vitro fertilization (IVF), the transfer of frozen embryos has been shown to result in a higher rate of live birth than the transfer of fresh embryos in those with infertility associated with the polycystic ovary syndrome. It is not known whether frozen-embryo transfer results in similar benefit in women with infertility that is not associated with the polycystic ovary syndrome. METHODS: We randomly assigned 782 infertile women without the polycystic ovary syndrome who were undergoing a first or second IVF cycle to receive either a frozen embryo or a fresh embryo on day 3. In the frozen-embryo group, all grade 1 and 2 embryos had been cryopreserved, and a maximum of two embryos were thawed on the day of transfer in the following cycle. In the fresh-embryo group, a maximum of two fresh embryos were transferred in the stimulated cycle. The primary outcome was ongoing pregnancy after the first embryo transfer. RESULTS: After the first completed cycle, ongoing pregnancy occurred in 142 of 391 women (36.3%) in the frozen-embryo group and in 135 of 391 (34.5%) in the fresh-embryo group (risk ratio in the frozen-embryo group, 1.05; 95% confidence interval [CI], 0.87 to 1.27; P=0.65). Rates of live birth after the first transfer were 33.8% and 31.5%, respectively (risk ratio, 1.07; 95% CI, 0.88 to 1.31). CONCLUSIONS: Among infertile women without the polycystic ovary syndrome who were undergoing IVF, the transfer of frozen embryos did not result in significantly higher rates of ongoing pregnancy or live birth than the transfer of fresh embryos. (Funded by My Duc Hospital; ClinicalTrials.gov number, NCT02471573 .). PMID- 29320656 TI - Electrolyte Disturbances in Chronic Alcohol-Use Disorder. PMID- 29320657 TI - Case 1-2018. A 39-Year-Old Woman with Rapidly Progressive Respiratory Failure. PMID- 29320658 TI - Osimertinib as First-Line Treatment in EGFR-Mutated Non-Small-Cell Lung Cancer. PMID- 29320659 TI - Iris Abscess. PMID- 29320660 TI - Nicotine replacement therapy for smoking cessation during pregnancy. AB - Nicotine replacement therapy (NRT) is recommended in current Australian clinical guidelines for pregnant women who are unable to quit smoking unassisted. Clinicians report low levels of prescribing NRT during pregnancy, due to safety concerns and low levels of confidence in their ability to prescribe NRT. Animal models show that nicotine is harmful to the fetus, especially for brain and lung development, but human studies have not found any harmful effects on fetal and pregnancy outcomes. Studies of efficacy and effectiveness in the real world suggest that NRT use during pregnancy increases smoking cessation rates. These rates may be hampered by the fact that studies so far have used an NRT dose that does not adequately account for the higher nicotine metabolism during pregnancy and, therefore, does not adequately treat withdrawal symptoms. Further research is needed to assess the safety and efficacy of higher dosages of NRT in pregnancy, specifically of combination treatment using dual forms of NRT. As NRT is safer than smoking, clinicians need to offer this option to all pregnant women who smoke. A practical guide for initiating and tailoring the dose of NRT in pregnancy is suggested. PMID- 29320661 TI - Regulating e-cigarettes in Australia: implications for tobacco use by young people. PMID- 29320663 TI - Investing in men's health in Australia. PMID- 29320664 TI - Distributions and what to do when they are non-normal. PMID- 29320665 TI - A guide to improving women's health. PMID- 29320666 TI - The value of novel oral anticoagulants in rural Australia. PMID- 29320667 TI - Surviving breast cancer. PMID- 29320668 TI - The impact of non-vitamin K antagonist oral anticoagulants (NOACs) on anticoagulation therapy in rural Australia. AB - OBJECTIVE: To determine the use of different anticoagulation therapies in rural Western Australia; to establish whether remoteness from health care services affects the choice of anticoagulation therapy; to gather preliminary data on anticoagulation therapy safety and efficacy. DESIGN: Retrospective cohort study of patients hospitalised with a principal diagnosis of atrial fibrillation/flutter (AF) or venous thromboembolism (VTE) during 2014-2015. SETTING: Four hospitals serving two-thirds of the rural population of Western Australia. PARTICIPANTS: 609 patients with an indication for anticoagulation therapy recorded in their hospital discharge summary for index admission. MAIN OUTCOME MEASURES: Prescribing rates of anticoagulation therapies by indication for anticoagulation and distance of patient residence from their hospital. The primary safety outcome was re-hospitalisation with a major or clinically relevant non-major bleeding event; the primary lack-of-efficacy outcome was re hospitalisation for a thromboembolic event. RESULTS: The overall rates of prescription of NOACs and warfarin were similar (34% v 33%). A NOAC was prescribed more often than warfarin for patients with AF (56.0% v 42.2% of those who received an anticoagulant; P < 0.001), but less often for patients with VTE (29% v 48%; P < 0.001). Warfarin was prescribed for 38% of patients who lived locally, a NOAC for 31% (P = 0.013); for non-local patients, the respective proportions were 29% and 36% (P = 0.08). 69% of patients with AF and a CHA2DS2 VASc score >= 1 were prescribed anticoagulation therapy. Patients treated with NOACs had fewer bleeding events than patients treated with warfarin (nine events [4%] v 20 events [10%]; P = 0.027). CONCLUSIONS: In rural WA, about one-third of patients with an indication for anticoagulation therapy receive NOACs, but one third of patients with AF and at risk of stroke received no anticoagulant therapy, and may benefit from NOAC therapy. PMID- 29320669 TI - Comorbidities in Australian women with hormone-dependent breast cancer: a population-based analysis. AB - OBJECTIVE: To compare how frequently selected chronic diseases developed in women with breast cancer receiving endocrine therapy, and in women without cancer. DESIGN, SETTING AND PARTICIPANTS: Retrospective, rolling cohort study, analysing a random 10% sample of Pharmaceutical Benefits Scheme (PBS) data for the period 1 January 2003 - 31 December 2014. Women with breast cancer who first commenced endocrine therapy between January 2004 and December 2011 were identified, and age and sex-matched (1:10) by comorbidity with control groups of women who did not have a dispensing record for antineoplastic agents during the study period or the comorbidity of interest at baseline. MAIN OUTCOME MEASURES: Development of any of eight pre-selected comorbidities, identified in PBS claims data with the RxRisk-V model. RESULTS: Women with hormone-dependent breast cancer were significantly more likely than women in the control group to develop depression (overall hazard ratio [HR], 1.36; 95% CI, 1.26-1.46), pain or pain-inflammation (HR, 1.30; 95% CI, 1.23-1.38), osteoporosis (overall HR, 1.27; 95% CI, 1.17-1.39), diabetes (HR, 1.24; 95% CI, 1.10-1.41), cardiovascular disorders (overall HR, 1.22; 95% CI, 1.13-1.32), and gastric acid disorders (HR, 1.20; 95% CI, 1.13-1.28). The hazard ratios for developing cardiovascular disorders, depression and osteoporosis were highest during the first year of endocrine therapy. The risk of hyperlipidaemia was lower among women with breast cancer than in the control group (HR, 0.88; 95% CI, 0.81-0.96). There was no significant difference between the two groups in the risk of reactive airway diseases (HR, 1.05; 95% CI, 0.98-1.13). CONCLUSION: Comorbid conditions are more likely to develop in women who have been diagnosed with hormone-dependent breast cancer than in women without cancer. Our results further support the need to develop appropriate models of care to manage the multiple chronic disorders of breast cancer survivors. PMID- 29320670 TI - Diagnosing COPD and supporting smoking cessation in general practice: evidence practice gaps. AB - OBJECTIVES: To review the accuracy of diagnoses of chronic obstructive pulmonary disease (COPD) in primary care in Australia, and to describe smokers' experiences with and preferences for smoking cessation. DESIGN, SETTING AND PARTICIPANTS: Patients were invited to participate if they were at least 40 years old and had visited participating general practice clinics in Melbourne at least twice during the previous 12 months, reported being current or ex-smokers with a smoking history of at least 10 pack-years, or were being managed for COPD. Interviews based on a structured questionnaire and case finding (FEV1/FEV6 measurement) were followed, when appropriate, by spirometry testing and assessment of health related quality of life, dyspnoea and symptoms. RESULTS: 1050 patients attended baseline interviews (February 2015 - April 2017) at 41 practices. Of 245 participants managed for COPD, 130 (53.1%) met the spirometry-based definition (post-bronchodilator FEV1/FVC < 0.7) or had a clinical correlation; in 37% of cases COPD was not confirmed, and no definitive result was obtained for 9.8% of patients. Case finding and subsequent spirometry testing identified 142 new COPD cases (17.6% of participants without prior diagnosis; 95% CI, 15.1-20.5%). 690 participants (65.7%) were current smokers, of whom 360 had attempted quitting during the previous 12 months; 286 (81.0% of those attempting to quit) reported difficulties during previous quit attempts. Nicotine replacement therapy (205, 57.4%) and varenicline (110, 30.8%) were the most frequently employed pharmacological treatments; side effects were common. Hypnotherapy was the most popular non-pharmacological option (62 smokers, 17%); e-cigarettes were tried by 38 (11%). 187 current smokers (27.6%) would consider using e-cigarettes in future attempts to quit. CONCLUSIONS: COPD was both misdiagnosed and missed. Case finding and effective use of spirometry testing could improve diagnosis. Side effects of smoking cessation medications and difficulties during attempts to quit smoking are common. Health professionals should emphasise evidence-based treatments, and closely monitor quitting difficulties and side effects of cessation aids. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry ACTRN12614001155684. PMID- 29320671 TI - Cognitive impairment during pregnancy: a meta-analysis. AB - OBJECTIVES: Many women report declines in cognitive function during pregnancy, but attempts to empirically evaluate such changes have yielded inconsistent results. We aimed to determine whether pregnancy is associated with objective declines in cognitive functioning, and to assess the progression of any declines during pregnancy. STUDY DESIGN: We undertook a meta-analysis, applying a random effects model, of 20 studies that have reported quantitative relationships between pregnancy and changes in cognition. DATA SOURCES: Full text articles indexed by Cumulative Index to Nursing and Allied Health Literature (CINAHL) Complete, MEDLINE Complete, and PsychINFO. DATA SYNTHESIS: The 20 studies assessed included 709 pregnant women and 521 non-pregnant women. Overall cognitive functioning was poorer in pregnant women than in non-pregnant women (standardised mean difference [SMD], 0.52 [95% CI, 0.07-0.97]; P = 0.025). Analysis of cross-sectional studies found that general cognitive functioning (SMD, 1.28 [95% CI 0.26-2.30]; P = 0.014), memory (SMD, 1.47 [95% CI, 0.27-2.68]; P = 0.017), and executive functioning (SMD, 0.46 [95% CI, 0.03-0.89]; P = 0.036) were significantly reduced during the third trimester of pregnancy (compared with control women), but not during the first two trimesters. Longitudinal studies found declines between the first and second trimesters in general cognitive functioning (SMD, 0.29 [95% CI, 0.08-0.50]; P = 0.006) and memory (SMD, 0.33 [95% CI, 0.12-0.54]; P = 0.002), but not between the second and third trimesters. CONCLUSIONS: General cognitive functioning, memory, and executive functioning were significantly poorer in pregnant than in control women, particularly during the third trimester. The differences primarily develop during the first trimester, and are consistent with recent findings of long term reductions in brain grey matter volume during pregnancy. The impact of these effects on the quality of life and everyday functioning of pregnant women requires further investigation. PMID- 29320672 TI - Position statement: a clinical approach to the management of adult non-neurogenic overactive bladder. AB - INTRODUCTION: Overactive bladder (OAB) is a highly prevalent medical condition that has an adverse impact on various health-related quality-of-life domains, including a significant psychosocial and financial burden. This position statement, formulated by members of the Urological Society of Australia and New Zealand and the UroGynaecological Society of Australasia, summarises the current recommendations for clinical diagnosis and treatment strategies in patients with non-neurogenic OAB, and guides clinicians in the decision-making process for managing the condition using evidence-based medicine. Main recommendations: Diagnosis and initial management should be based on thorough clinical history, examination and basic investigations to exclude underlying treatable causes such as urinary tract infection and urological malignancy. Initial treatment strategies for OAB involve conservative management with behavioural modification and bladder retraining. Second-line management involves medical therapy using anticholinergic or beta3 agonist drugs provided there is adequate assessment of bladder emptying. If medical therapy is unsuccessful, further investigations with urodynamic studies and cystourethroscopy are recommended to guide further treatment. Intravesical botulinum toxin and sacral neuromodulation should be considered in medical refractory OAB. Changes in management as a result of this statement: OAB is a constellation of urinary symptoms and is a chronic condition with a low likelihood of cure; managing patient expectations is essential because OAB is challenging to treat. At present, the exact pathogenesis of OAB remains unclear and it is likely that there are multiple factors involved in this disease complex. Current medical treatment remains far from ideal, although minimally invasive surgery can be effective. Further research into the pathophysiology of this common condition will hopefully guide future developments in disease management. PMID- 29320673 TI - Caution with the forthcoming rescheduling of over-the-counter codeine-containing analgesics. PMID- 29320675 TI - Leaning in to life. PMID- 29320674 TI - No smoker left behind: it's time to tackle tobacco in Australian priority populations. PMID- 29320677 TI - Warhammers for Peaceful Times. AB - The Perkins group has recently developed a number of improved atomic force microscopy cantilevers using the focused ion beam technology. They compared the performance of these cantilevers in "real-life" biophysical single-molecule force spectroscopy measurements on protein unfolding, and the results of this comparison are reported in this issue of Biophysical Journal. PMID- 29320678 TI - Effect of Ceramide Tail Length on the Structure of Model Stratum Corneum Lipid Bilayers. AB - Lipid bilayers composed of non-hydroxy sphingosine ceramide (CER NS), cholesterol (CHOL), and free fatty acids (FFAs), which are components of the human skin barrier, are studied via molecular dynamics simulations. Since mixtures of these lipids exist in dense gel phases with little molecular mobility at physiological conditions, care must be taken to ensure that the simulations become decorrelated from the initial conditions. Thus, we propose and validate an equilibration protocol based on simulated tempering, in which the simulation takes a random walk through temperature space, allowing the system to break out of metastable configurations and hence become decorrelated from its initial configuration. After validating the equilibration protocol, which we refer to as random-walk molecular dynamics, the effects of the lipid composition and ceramide tail length on bilayer properties are studied. Systems containing pure CER NS, CER NS + CHOL, and CER NS + CHOL + FFA, with the CER NS fatty acid tail length varied within each CER NS-CHOL-FFA composition, are simulated. The bilayer thickness is found to depend on the structure of the center of the bilayer, which arises as a result of the tail-length asymmetry between the lipids studied. The hydrogen bonding between the lipid headgroups and with water is found to change with the overall lipid composition, but is mostly independent of the CER fatty acid tail length. Subtle differences in the lateral packing of the lipid tails are also found as a function of CER tail length. Overall, these results provide insight into the experimentally observed trend of altered barrier properties in skin systems where there are more CERs with shorter tails present. PMID- 29320679 TI - Effect of H-Bond Donor Lipids on Phosphatidylinositol-3,4,5-Trisphosphate Ionization and Clustering. AB - The phosphoinositide, phosphatidylinositol-3,4,5-trisphosphate (PI(3,4,5)P3), is a key signaling lipid in the inner leaflet of the cell plasma membrane, regulating diverse signaling pathways including cell growth and migration. In this study we investigate the impact of the hydrogen-bond donor lipids phosphatidylethanolamine (PE) and phosphatidylinositol (PI) on the charge and phase behavior of PI(3,4,5)P3. PE and PI can interact with PI(3,4,5)P3 through hydrogen-bond formation, leading to altered ionization behavior and charge distribution within the PI(3,4,5)P3 headgroup. We quantify the altered PI(3,4,5)P3 ionization behavior using a multistate ionization model to obtain micro-pKa values for the ionization of each phosphate group. The presence of PE leads to a decrease in the pKa values for the initial deprotonation of PI(3,4,5)P3, which describes the removal of the first proton of the three protons remaining at the phosphomonoester groups at pH 4.0. The decrease in these micro pKa values thus leads to a higher charge at low pH. Additionally, the charge distribution changes lead to increased charge on the 3- and 5-phosphates. In the presence of PI, the final deprotonation of PI(3,4,5)P3 is delayed, leading to a lower charge at high pH. This is due to a combination of hydrogen-bond formation between PI and PI(3,4,5)P3, and increased surface charge due to the addition of the negatively charged PI. The interaction between PI and PI(3,4,5)P3 leads to the formation of PI and PI(3,4,5)P3-enriched domains within the membrane. These domains may have a critical impact on PI(3,4,5)P3-signaling. We also reevaluate results for all phosphatidylinositol bisphosphates as well as for PI(4,5)P2 in complex lipid mixtures with the multistate ionization model. PMID- 29320680 TI - K-Ras4B Remains Monomeric on Membranes over a Wide Range of Surface Densities and Lipid Compositions. AB - Ras is a membrane-anchored signaling protein that serves as a hub for many signaling pathways and also plays a prominent role in cancer. The intrinsic behavior of Ras on the membrane has captivated the biophysics community in recent years, especially the possibility that it may form dimers. In this article, we describe results from a comprehensive series of experiments using fluorescence correlation spectroscopy and single-molecule tracking to probe the possible dimerization of natively expressed and fully processed K-Ras4B in supported lipid bilayer membranes. Key to these studies is the fact that K-Ras4B has its native membrane anchor, including both the farnesylation and methylation of the terminal cysteine, enabling detailed exploration of possible effects of cholesterol and lipid composition on K-Ras4B membrane organization. The results from all conditions studied indicate that full-length K-Ras4B lacks intrinsic dimerization capability. This suggests that any lateral organization of Ras in living cell membranes likely stems from interactions with other factors. PMID- 29320682 TI - Translational Entropy and DNA Duplex Stability. AB - Investigation of folding/unfolding DNA duplexes of various size and composition by superprecise calorimetry has revised several long-held beliefs concerning the forces responsible for the formation of the double helix. It was established that: 1) the enthalpy and the entropy of duplex unfolding are temperature dependent, increasing with temperature rise and having the same heat capacity increment for CG and AT pairs; 2) the enthalpy of AT melting is greater than that of the CG pair, so the stabilizing effect of the CG pair in comparison with AT results not from its larger enthalpic contribution (as expected from its extra hydrogen bond), but from the larger entropic contribution of the AT pair that results from its ability to fix ordered water in the minor groove and release it upon duplex unfolding; 3) the translation entropy, resulting from the appearance of a new kinetic unit on duplex dissociation, determines the dependence of duplex stability on its length and its concentration (it is an order-of-magnitude smaller than predicted from the statistical mechanics of gases and is fully expressed by the stoichiometric correction term); 4) changes in duplex stability on reshuffling the sequence (the "nearest-neighbor effect") result from the immobilized water molecules fixed by AT pairs in the minor groove; and 5) the evaluated thermodynamic components permit a quantitative expression of DNA duplex stability. PMID- 29320681 TI - Intrinsic Curvature-Mediated Transbilayer Coupling in Asymmetric Lipid Vesicles. AB - We measured the effect of intrinsic lipid curvature, J0, on structural properties of asymmetric vesicles made of palmitoyl-oleoyl-phosphatidylethanolamine (POPE; J0<0) and palmitoyl-oleoyl-phosphatidylcholine (POPC; J0~0). Electron microscopy and dynamic light scattering were used to determine vesicle size and morphology, and x-ray and neutron scattering, combined with calorimetric experiments and solution NMR, yielded insights into leaflet-specific lipid packing and melting processes. Below the lipid melting temperature we observed strong interleaflet coupling in asymmetric vesicles with POPE inner bilayer leaflets and outer leaflets enriched in POPC. This lipid arrangement manifested itself by lipids melting cooperatively in both leaflets, and a rearrangement of lipid packing in both monolayers. On the other hand, no coupling was observed in vesicles with POPC inner bilayer leaflets and outer leaflets enriched in POPE. In this case, the leaflets melted independently and did not affect each other's acyl chain packing. Furthermore, we found no evidence for transbilayer structural coupling above the melting temperature of either sample preparation. Our results are consistent with the energetically preferred location of POPE residing in the inner leaflet, where it also resides in natural membranes, most likely causing the coupling of both leaflets. The loss of this coupling in the fluid bilayers is most likely the result of entropic contributions. PMID- 29320683 TI - Changes in Cholesterol Level Alter Integrin Sequestration in Raft-Mimicking Lipid Mixtures. AB - The influence of cholesterol (CHOL) level on integrin sequestration in raft mimicking lipid mixtures forming coexisting liquid-ordered (lo) and liquid disordered (ld) lipid domains is investigated using complementary, single molecule-sensitive, confocal detection methods. Systematic analysis of membrane protein distribution in such a model membrane environment demonstrates that variation of CHOL level has a profound influence on lo-ld sequestration of integrins, thereby exhibiting overall ld preference in the absence of ligands and lo affinity upon vitronectin addition. Accompanying photon-counting histogram analysis of integrins in the different model membrane mixtures shows that the observed changes of integrin sequestration in response to variations of membrane CHOL level are not associated with altering integrin oligomerization states. Instead, our experiments suggest that the strong CHOL dependence of integrin sequestration can be attributed to CHOL-mediated changes of lipid packing and bilayer thickness in coexisting lo and ld domains, highlighting the significance of a biophysical mechanism of CHOL-mediated regulation of integrin sequestration. We envision that this model membrane study may help clarify the influence of CHOL in integrin functionality in plasma membranes, thus providing further insight into the role of lipid heterogeneities in membrane protein distribution and function in a cellular membrane environment. PMID- 29320684 TI - Label-free Imaging and Bending Analysis of Microtubules by ROCS Microscopy and Optical Trapping. AB - Mechanical manipulation of single cytoskeleton filaments and their monitoring over long times is difficult because of fluorescence bleaching or phototoxic protein degradation. The integration of label-free microscopy techniques, capable of imaging freely diffusing, weak scatterers such as microtubules (MTs) in real time, and independent of their orientation, with optical trapping and tracking systems, would allow many new applications. Here, we show that rotating-coherent scattering microscopy (ROCS) in dark-field mode can also provide strong contrast for structures far from the coverslip such as arrangements of isolated MTs and networks. We could acquire thousands of images over up to 30 min without loss in image contrast or visible photodamage. We further demonstrate the combination of ROCS imaging with fast and nanometer-precise 3D interferometric back-focal-plane tracking of multiple beads in time-shared optical traps using acoustooptic deflectors to specifically construct and microrheologically probe small microtubule networks with well-defined geometries. Thereby, we explore the frequency-dependent elastic response of single microtubule filaments between 0.5 Hz and 5 kHz, which allows for investigating their viscoelastic response up to the fourth-order bending mode. Our spectral analysis reveals constant filament stiffness at low frequencies and frequency-dependent stiffening following a power law ~omegap with a length-dependent exponent p(L). We find further evidence for the dependence of the MT persistence length on the contour length L, which is still controversially debated. We could also demonstrate slower stiffening at high frequencies for longer filaments, which we believe is determined by the molecular architecture of the MT. Our results shed new light on the nanomechanics of this essential, multifunctional cytoskeletal element and pose new questions about the adaptability of the cytoskeleton. PMID- 29320685 TI - Essential Role of the epsilon Subunit for Reversible Chemo-Mechanical Coupling in F1-ATPase. AB - F1-ATPase is a rotary motor protein driven by ATP hydrolysis. Among molecular motors, F1 exhibits unique high reversibility in chemo-mechanical coupling, synthesizing ATP from ADP and inorganic phosphate upon forcible rotor reversal. The epsilon subunit enhances ATP synthesis coupling efficiency to > 70% upon rotation reversal. However, the detailed mechanism has remained elusive. In this study, we performed stall-and-release experiments to elucidate how the epsilon subunit modulates ATP association/dissociation and hydrolysis/synthesis process kinetics and thermodynamics, key reaction steps for efficient ATP synthesis. The epsilon subunit significantly accelerated the rates of ATP dissociation and synthesis by two- to fivefold, whereas those of ATP binding and hydrolysis were not enhanced. Numerical analysis based on the determined kinetic parameters quantitatively reproduced previous findings of two- to fivefold coupling efficiency improvement by the epsilon subunit at the condition exhibiting the maximum ATP synthesis activity, a physiological role of F1-ATPase. Furthermore, fundamentally similar results were obtained upon epsilon subunit C-terminal domain truncation, suggesting that the N-terminal domain is responsible for the rate enhancement. PMID- 29320686 TI - Dynamic Model for Characterizing Contractile Behaviors and Mechanical Properties of a Cardiomyocyte. AB - Studies on the contractile dynamics of heart cells have attracted broad attention for the development of both heart disease therapies and cardiomyocyte-actuated micro-robotics. In this study, a linear dynamic model of a single cardiomyocyte cell was proposed at the subcellular scale to characterize the contractile behaviors of heart cells, with system parameters representing the mechanical properties of the subcellular components of living cardiomyocytes. The system parameters of the dynamic model were identified with the cellular beating pattern measured by a scanning ion conductance microscope. The experiments were implemented with cardiomyocytes in one control group and two experimental groups with the drugs cytochalasin-D or nocodazole, to identify the system parameters of the model based on scanning ion conductance microscope measurements, measurement of the cellular Young's modulus with atomic force microscopy indentation, measurement of cellular contraction forces using the micro-pillar technique, and immunofluorescence staining and imaging of the cytoskeleton. The proposed mathematical model was both indirectly and qualitatively verified by the variation in cytoskeleton, beating amplitude, and contractility of cardiomyocytes among the control and the experimental groups, as well as directly and quantitatively validated by the simulation and the significant consistency of 90.5% in the comparison between the ratios of the Young's modulus and the equivalent comprehensive cellular elasticities of cells in the experimental groups to those in the control group. Apart from mechanical properties (mass, elasticity, and viscosity) of subcellular structures, other properties of cardiomyocytes have also been studied, such as the properties of the relative action potential pattern and cellular beating frequency. This work has potential implications for research on cytobiology, drug screening, mechanisms of the heart, and cardiomyocyte-based bio-syncretic robotics. PMID- 29320687 TI - Microtubule Polymerization and Cross-Link Dynamics Explain Axonal Stiffness and Damage. AB - Axonal damage is a critical indicator for traumatic effects of physical impact to the brain. However, the precise mechanisms of axonal damage are still unclear. Here, we establish a mechanistic and highly dynamic model of the axon to explore the evolution of damage in response to physical forces. Our axon model consists of a bundle of dynamically polymerizing and depolymerizing microtubules connected by dynamically detaching and reattaching cross-links. Although the probability of cross-link attachment depends exclusively on thermal fluctuations, the probability of detachment increases in the presence of physical forces. We systematically probe the landscape of axonal stretch and stretch rate and characterize the overall axonal force, stiffness, and damage as a direct result of the interplay between microtubule and cross-link dynamics. Our simulations reveal that slow loading is dominated by cross-link dynamics, a net reduction of cross-links, and a gradual accumulation of damage, whereas fast loading is dominated by cross-link deformations, a rapid increase in stretch, and an immediate risk of rupture. Microtubule polymerization and depolymerization decrease the overall axonal stiffness, but do not affect the evolution of damage at timescales relevant to axonal failure. Our study explains different failure mechanisms in the axon as emergent properties of microtubule polymerization, cross-link dynamics, and physical forces. We anticipate that our model will provide insight into causal relations by which molecular mechanisms determine the timeline and severity of axon damage after a physical impact to the brain. PMID- 29320688 TI - Coevolutionary Landscape of Kinase Family Proteins: Sequence Probabilities and Functional Motifs. AB - The protein kinase catalytic domain is one of the most abundant domains across all branches of life. Although kinases share a common core function of phosphoryl transfer, they also have wide functional diversity and play varied roles in cell signaling networks, and for this reason are implicated in a number of human diseases. This functional diversity is primarily achieved through sequence variation, and uncovering the sequence-function relationships for the kinase family is a major challenge. In this study we use a statistical inference technique inspired by statistical physics, which builds a coevolutionary "Potts" Hamiltonian model of sequence variation in a protein family. We show how this model has sufficient power to predict the probability of specific subsequences in the highly diverged kinase family, which we verify by comparing the model's predictions with experimental observations in the Uniprot database. We show that the pairwise (residue-residue) interaction terms of the statistical model are necessary and sufficient to capture higher-than-pairwise mutation patterns of natural kinase sequences. We observe that previously identified functional sets of residues have much stronger correlated interaction scores than are typical. PMID- 29320689 TI - Collective Cell Migration in Embryogenesis Follows the Laws of Wetting. AB - Collective cell migration is a fundamental process during embryogenesis and its initial occurrence, called epiboly, is an excellent in vivo model to study the physical processes involved in collective cell movements that are key to understanding organ formation, cancer invasion, and wound healing. In zebrafish, epiboly starts with a cluster of cells at one pole of the spherical embryo. These cells are actively spreading in a continuous movement toward its other pole until they fully cover the yolk. Inspired by the physics of wetting, we determine the contact angle between the cells and the yolk during epiboly. By choosing a wetting approach, the relevant scale for this investigation is the tissue level, which is in contrast to other recent work. Similar to the case of a liquid drop on a surface, one observes three interfaces that carry mechanical tension. Assuming that interfacial force balance holds during the quasi-static spreading process, we employ the physics of wetting to predict the temporal change of the contact angle. Although the experimental values vary dramatically, the model allows us to rescale all measured contact-angle dynamics onto a single master curve explaining the collective cell movement. Thus, we describe the fundamental and complex developmental mechanism at the onset of embryogenesis by only three main parameters: the offset tension strength, alpha, that gives the strength of interfacial tension compared to other force-generating mechanisms; the tension ratio, delta, between the different interfaces; and the rate of tension variation, lambda, which determines the timescale of the whole process. PMID- 29320690 TI - Sharing of Phosphatases Promotes Response Plasticity in Phosphorylation Cascades. AB - Sharing of positive or negative regulators between multiple targets is frequently observed in cellular signaling cascades. For instance, phosphatase sharing between multiple kinases is ubiquitous within the MAPK pathway. Here we investigate how such phosphatase sharing could shape robustness and evolvability of the phosphorylation cascade. Through modeling and evolutionary simulations, we demonstrate that 1) phosphatase sharing dramatically increases robustness of a bistable MAPK response, and 2) phosphatase-sharing cascades evolve faster than nonsharing cascades. This faster evolution is particularly pronounced when evolving from a monostable toward a bistable phenotype, whereas the transition speed of a population from a bistable to monostable response is not affected by phosphatase sharing. This property may enable the phosphatase-sharing design to adapt better in a changing environment. Analysis of the respective mutational landscapes reveal that phosphatase sharing reduces the number of limiting mutations required for transition from monostable to bistable responses, hence facilitating a faster transition to such response types. Taken together, using MAPK cascade as an example, our study offers a general theoretical framework to explore robustness and evolutionary plasticity of signal transduction cascades. PMID- 29320692 TI - Signaling Architectures that Transmit Unidirectional Information Despite Retroactivity. PMID- 29320691 TI - Network Features and Dynamical Landscape of Naive and Primed Pluripotency. AB - Although the broad and unique differentiation potential of pluripotent stem cells relies on a complex transcriptional network centered around Oct4, Sox2, and Nanog, two well-distinct pluripotent states, called "naive" and "primed", have been described in vitro and markedly differ in their developmental potential, their expression profiles, their signaling requirements, and their reciprocal conversion. Aiming to determine the key features that segregate and coordinate these two states, data-driven optimization of network models is performed to identify relevant parameter regimes and reduce network complexity to its core structure. Decision dynamics of optimized networks is characterized by signal dependent multistability and strongly asymmetric transitions among naive, primed, and nonpluripotent states. Further model perturbation and reduction approaches reveal that such a dynamical landscape of pluripotency involves a functional partitioning of the regulatory network. Specifically, two overlapping positive feedback modules, Klf4/Esrrb/Nanog and Oct4/Nanog, stabilize the naive or the primed state, respectively. In turn, their incoherent feedforward and negative feedback coupling mediated by the Erk/Gsk3 module is critical for robust segregation and sequential progression between naive and primed states before irreversible exit from pluripotency. PMID- 29320693 TI - Mechanical Transduction and the Dark Energy of Biology. PMID- 29320694 TI - Dynamic Structural Differences between Human and Mouse STING Lead to Differing Sensitivity to DMXAA. AB - The stimulator-of-interferon-genes (STING) protein is involved in innate immunity. It has recently been shown that modulation of STING can lead to an aggressive antitumor response. DMXAA is an antitumor agent that had shown great promise in murine models but failed in human clinical trials. The molecular target of DMXAA was subsequently shown to be murine STING (mSTING); however, human STING (hSTING) is insensitive to DMXAA. Molecular dynamics simulations were employed to investigate the differences between hSTING and mSTING that could influence DMXAA binding. An initial set of simulations was performed to investigate a single lid region mutation G230I in hSTING (corresponding residue in mSTING is an Ile), which rendered the protein sensitive to DMXAA. The simulations found that an Ile side chain was enough to form a steric barrier that prevents exit of DMXAA, whereas in WT hSTING, the Gly residue that lacks a side chain formed a porous lid region that allowed DMXAA to exit. A second set of molecular dynamics simulations compared the tendency of STING to be in an open inactive conformation or a closed-active conformation. The results show that hSTING prefers to be in an open-inactive conformation even with cGAMP, the native ligand, bound. On the other hand, mSTING prefers a closed-active conformation even without a ligand bound. These results highlight the challenges in translating a mouse active STING compound into a human active compound, while also providing avenues to pursue for designing a small-molecule drug targeting human STING. PMID- 29320695 TI - Decrypting the Heat Activation Mechanism of TRPV1 Channel by Molecular Dynamics Simulation. AB - As a prototype cellular sensor, the TRPV1 cation channel undergoes a closed-to open gating transition in response to various physical and chemical stimuli including noxious heat. Despite recent progress, the molecular mechanism of heat activation of TRPV1 gating remains enigmatic. Toward decrypting the structural basis of TRPV1 heat activation, we performed extensive molecular dynamics simulations (with cumulative simulation time of ~11 MUs) for the wild-type channel and a constitutively active double mutant at different temperatures (30, 60, and 72 degrees C), starting from a high-resolution closed-channel structure of TRPV1 solved by cryo-electron microscopy. In the wild-type simulations, we observed heat-activated conformational changes (e.g., expansion or contraction) in various key domains of TRPV1 (e.g., the S2-S3 and S4-S5 linkers) to prime the channel for gating. These conformational changes involve a number of dynamic hydrogen-bond interactions that were validated with previous mutational studies. Next, our mutant simulations observed channel opening after a series of conformational changes that propagate from the channel periphery to the channel pore via key intermediate domains (including the S2-S3 and S4-S5 linkers). The gating transition is accompanied by a large increase in the protein-water electrostatic interaction energy, which supports the contribution of desolvation of polar/charged residues to the temperature-sensitive TRPV1 gating. Taken together, our molecular dynamics simulations and analyses offered, to our knowledge, new structural, dynamic, and energetic information to guide future mutagenesis and functional studies of the TRPV1 channels and development of TRPV1 targeting drugs. PMID- 29320696 TI - Using a FRET Library with Multiple Probe Pairs To Drive Monte Carlo Simulations of alpha-Synuclein. AB - We describe a strategy for experimentally-constraining computational simulations of intrinsically disordered proteins (IDPs), using alpha-synuclein, an IDP with a central role in Parkinson's disease pathology, as an example. Previously, data from single-molecule Forster Resonance Energy Transfer (FRET) experiments have been effectively utilized to generate experimentally constrained computational models of IDPs. However, the fluorophores required for single-molecule FRET experiments are not amenable to the study of short-range (<30 A) interactions. Using ensemble FRET measurements allows one to acquire data from probes with multiple distance ranges, which can be used to constrain Monte Carlo simulations in PyRosetta. To appropriately employ ensemble FRET data as constraints, we optimized the shape and weight of constraining potentials to afford ensembles of structures that are consistent with experimental data. We also used this approach to examine the structure of alpha-synuclein in the presence of the compacting osmolyte trimethylamine-N-oxide. Despite significant compaction imparted by 2 M trimethylamine-N-oxide, the underlying ensemble of alpha-synuclein remains largely disordered and capable of aggregation, also in agreement with experimental data. These proof-of-concept experiments demonstrate that our modeling protocol enables one to efficiently generate experimentally constrained models of IDPs that incorporate atomic-scale detail, allowing one to study an IDP under a variety of conditions. PMID- 29320697 TI - Effects of pH and Salt Concentration on Stability of a Protein G Variant Using Coarse-Grained Models. AB - The importance of charge-charge interactions in the thermal stability of proteins is widely known. pH and ionic strength play a crucial role in these electrostatic interactions, as well as in the arrangement of ionizable residues in each protein folding stage. In this study, two coarse-grained models were used to evaluate the effect of pH and salt concentration on the thermal stability of a protein G variant (1PGB-QDD), which was chosen due to the quantity of experimental data exploring these effects on its stability. One of these coarse-grained models, the TKSA, calculates the electrostatic free energy of the protein in the native state via the Tanford-Kirkwood approach for each residue. The other one, CpHMD-SBM, uses a Coulomb screening potential in addition to the structure-based model Calpha. Both models simulate the system in constant pH. The comparison between the experimental stability analysis and the computational results obtained by these simple models showed a good agreement. Through the TKSA method, the role of each charged residue in the protein's thermal stability was inferred. Using CpHMD SBM, it was possible to evaluate salt and pH effects throughout the folding process. Finally, the computational pKa values were calculated by both methods and presented a good level of agreement with the experiments. This study provides, to our knowledge, new information and a comprehensive description of the electrostatic contribution to protein G stability. PMID- 29320698 TI - Ion Specificity and Nonmonotonic Protein Solubility from Salt Entropy. AB - The addition of salt to protein solutions can either increase or decrease the protein solubility, and the magnitude of this effect depends on the salt used. We show that these effects can be captured using a theory that includes attractive and repulsive electrostatic interactions, nonelectrostatic protein-ion interactions, and ion-solvent interactions via an effective solvated ion radius. We find that the ion radius has significant effects on the translational entropy of the salt, which leads to salt specificity in the protein solubility. At low salt, the dominant effect comes from the entropic cost of confining ions within the aggregate, whereas at high concentrations, the salt drives a depletion attraction that favors aggregation. Our theory explains the reversal in the Hofmeister series observed in lysozyme cloud point measurements and semi quantitatively describes the solubility of lysozyme and chymosin crystals. We present a comparison of the contributions to the free energy and give guidelines for when salting in or salting out should be expected. PMID- 29320699 TI - LRET Determination of Molecular Distances during pH Gating of the Mammalian Inward Rectifier Kir1.1b. AB - Gating of the mammalian inward rectifier Kir1.1 at the helix bundle crossing (HBC) by intracellular pH is believed to be mediated by conformational changes in the C-terminal domain (CTD). However, the exact motion of the CTD during Kir gating remains controversial. Crystal structures and single-molecule fluorescence resonance energy transfer of KirBac channels have implied a rigid body rotation and/or a contraction of the CTD as possible triggers for opening of the HBC gate. In our study, we used lanthanide-based resonance energy transfer on single-Cys dimeric constructs of the mammalian renal inward rectifier, Kir1.1b, incorporated into anionic liposomes plus PIP2, to determine unambiguous, state-dependent distances between paired Cys residues on diagonally opposite subunits. Functionality and pH dependence of our proteoliposome channels were verified in separate electrophysiological experiments. The lanthanide-based resonance energy transfer distances measured in closed (pH 6) and open (pH 8) conditions indicated neither expansion nor contraction of the CTD during gating, whereas the HBC gate widened by 8.8 +/- 4 A, from 6.3 +/- 2 to 15.1 +/- 6 A, during opening. These results are consistent with a Kir gating model in which rigid body rotation of the large CTD around the permeation axis is correlated with opening of the HBC hydrophobic gate, allowing permeation of a 7 A hydrated K ion. PMID- 29320701 TI - Aminoacylation of Proteins: New Targets for the Old ARSenal. AB - Besides charging tRNAs with their cognate amino acids, aminoacyl-tRNA synthetases (ARSs) are involved in a plethora of non-canonical functions, including development, immune response, and angiogenesis. In this issue of Cell Metabolism, He et al. (2018) report a novel biochemical function of ARSs: posttranslational addition of amino acids to lysine residues in proteins. PMID- 29320700 TI - Role of Phosphorylation in Moesin Interactions with PIP2-Containing Biomimetic Membranes. AB - Moesin, a protein of the ezrin, radixin, and moesin family, which links the plasma membrane to the cytoskeleton, is involved in multiple physiological and pathological processes, including viral budding and infection. Its interaction with the plasma membrane occurs via a key phosphoinositide, the phosphatidyl(4,5)inositol-bisphosphate (PIP2), and phosphorylation of residue T558, which has been shown to contribute, in cellulo, to a conformationally open protein. We study the impact of a double phosphomimetic mutation of moesin (T235D, T558D), which mimics the phosphorylation state of the protein, on protein/PIP2/microtubule interactions. Analytical ultracentrifugation in the micromolar range showed moesin in the monomer and dimer forms, with wild-type (WT) moesin containing a slightly larger fraction (~30%) of dimers than DD moesin (10-20%). Only DD moesin was responsive to PIP2 in its micellar form. Quantitative cosedimentation assays using large unilamellar vesicles and quartz crystal microbalance on supported lipid bilayers containing PIP2 reveal a specific cooperative interaction for DD moesin with an ability to bind two PIP2 molecules simultaneously, whereas WT moesin was able to bind only one. In addition, DD moesin could subsequently interact with microtubules, whereas WT moesin was unable to do so. Altogether, our results point to an important role of these two phosphorylation sites in the opening of moesin: since DD moesin is intrinsically in a more open conformation than WT moesin, this intermolecular interaction is reinforced by its binding to PIP2. We also highlight important differences between moesin and ezrin, which appear to be finely regulated and to exhibit distinct molecular behaviors. PMID- 29320703 TI - Three-Dimensional Adipose Tissue Imaging Reveals Regional Variation in Beige Fat Biogenesis and PRDM16-Dependent Sympathetic Neurite Density. AB - While the cell-intrinsic pathways governing beige adipocyte development and phenotype have been increasingly delineated, comparatively little is known about how beige adipocytes interact with other cell types in fat. Here, we introduce a whole-tissue clearing method for adipose that permits immunolabeling and three dimensional profiling of structures including thermogenic adipocytes and sympathetic innervation. We found that tissue architecture and sympathetic innervation differ significantly between subcutaneous and visceral depots. Subcutaneous fat demonstrates prominent regional variation in beige fat biogenesis with localization of UCP1+ beige adipocytes to areas with dense sympathetic neurites. We present evidence that the density of sympathetic projections is dependent on PRDM16 in adipocytes, providing another potential mechanism underlying the metabolic benefits mediated by PRDM16. This powerful imaging tool highlights the interaction of tissue components during beige fat biogenesis and reveals a previously undescribed mode of regulation of the sympathetic nervous system by adipocytes. PMID- 29320702 TI - Repression of Adipose Tissue Fibrosis through a PRDM16-GTF2IRD1 Complex Improves Systemic Glucose Homeostasis. AB - Adipose tissue fibrosis is a hallmark of malfunction that is linked to insulin resistance and type 2 diabetes; however, what regulates this process remains unclear. Here we show that the PRDM16 transcriptional complex, a dominant activator of brown/beige adipocyte development, potently represses adipose tissue fibrosis in an uncoupling protein 1 (UCP1)-independent manner. By purifying the PRDM16 complex, we identified GTF2IRD1, a member of the TFII-I family of DNA binding proteins, as a cold-inducible transcription factor that mediates the repressive action of the PRDM16 complex on fibrosis. Adipocyte-selective expression of GTF2IRD1 represses adipose tissue fibrosis and improves systemic glucose homeostasis independent of body-weight loss, while deleting GTF2IRD1 promotes fibrosis in a cell-autonomous manner. GTF2IRD1 represses the transcription of transforming growth factor beta-dependent pro-fibrosis genes by recruiting PRDM16 and EHMT1 onto their promoter/enhancer regions. These results suggest a mechanism by which repression of obesity-associated adipose tissue fibrosis through the PRDM16 complex leads to an improvement in systemic glucose homeostasis. PMID- 29320704 TI - Extracellular Vesicles Provide a Means for Tissue Crosstalk during Exercise. AB - Exercise stimulates the release of molecules into the circulation, supporting the concept that inter-tissue signaling proteins are important mediators of adaptations to exercise. Recognizing that many circulating proteins are packaged in extracellular vesicles (EVs), we employed quantitative proteomic techniques to characterize the exercise-induced secretion of EV-contained proteins. Following a 1-hr bout of cycling exercise in healthy humans, we observed an increase in the circulation of over 300 proteins, with a notable enrichment of several classes of proteins that compose exosomes and small vesicles. Pulse-chase and intravital imaging experiments suggested EVs liberated by exercise have a propensity to localize in the liver and can transfer their protein cargo. Moreover, by employing arteriovenous balance studies across the contracting human limb, we identified several novel candidate myokines, released into circulation independently of classical secretion. These data identify a new paradigm by which tissue crosstalk during exercise can exert systemic biological effects. PMID- 29320706 TI - Human CIA2A-FAM96A and CIA2B-FAM96B Integrate Iron Homeostasis and Maturation of Different Subsets of Cytosolic-Nuclear Iron-Sulfur Proteins. PMID- 29320705 TI - An Adipose Tissue Atlas: An Image-Guided Identification of Human-like BAT and Beige Depots in Rodents. AB - [18F]Fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) imaging has been invaluable for visualizing metabolically active adipose tissues in humans with potential anti diabetic and anti-obesity effects. To explore whether mice display human-like fat depots in anatomically comparable regions, we mapped fat depots using glucose or fatty acid imaging tracers, such as 18F-FDG through PET/CT or [123/125I]-beta methyl-p-iodophenyl-pentadecanoic acid with SPECT/CT imaging, to analogous depots in mice. Using this type of image analysis with both probes, we define a large number of additional areas of high metabolic activity corresponding to novel fat pads. Histological and gene expression analyses validate these regions as bona fide fat pads. Our findings indicate that fat depots of rodents show a high degree of topological similarity to those of humans. Studies involving both glucose and lipid tracers indicate differential preferences for these substrates in different depots and also suggest that fatty acid-based visualized approaches may reveal additional brown adipose tissue and beige depots in humans. PMID- 29320707 TI - SnapShot: Niche Determines Adipocyte Character I. AB - Adipose tissues are complex organs, with central roles in energy homeostasis as well as local functions. Adipocytes develop in diverse, discrete locations throughout the body. Important regional differences in adipocytes exist, and diseases that affect adipose tissues often demonstrate depot-specific effects. Herein, we depict the widespread locations of major and minor rodent adipose depots. Depot-specific molecular and functional characteristics will be described in Part II. PMID- 29320708 TI - SnapShot: Niche Determines Adipocyte Character II. AB - The intrinsic cellular and metabolic properties of an adipocyte are shaped by the specific niche in which it resides. The diverse and discrete locations of major and minor rodent adipose depots are depicted in Part I. In Part II, the molecular and functional characteristics of four major types of adipocytes are described. Identified functions of relatively understudied but undoubtedly important depots are also highlighted. PMID- 29320709 TI - Metabolic Reprogramming via Targeting CD38 NADase Augments Adoptive T Cell Therapy. AB - One strategy to improve the potency of adoptive T cell therapy is to augment the function and persistence of anti-tumor T cells. In this issue of Cell Metabolism, Chatterjee et al. (2018) demonstrate that intratumoral CD4+ T cell functions and memory can be improved by targeting a CD38-NAD+-Sirt1-Foxo1 metabolic circuit. PMID- 29320710 TI - Apoptotic Regulatory T Cells Retain Suppressive Function through Adenosine. AB - Regulatory T cells maintain tolerance and prevent autoimmunity, but their suppressive effects can hinder immune responses against cancer. In Nature Immunology, Maj et al., 2017 report that regulatory T cells can execute these actions through the nucleoside adenosine even after cell death. PMID- 29320712 TI - SERCA2b Cycles Its Way to UCP1-Independent Thermogenesis in Beige Fat. AB - A new study in Nature Medicine, by Ikeda et al. (2017), reports that calcium cycling in beige adipocytes elevates energy expenditure and glucose oxidation in the absence of uncoupling protein 1. Thermogenic calcium cycling in beige fat is mediated by SERCA2b and improves cold tolerance and metabolic status. PMID- 29320713 TI - Recurrent ventricular fibrillation associated with acute ingestion of hydrofluoric acid. PMID- 29320714 TI - A case report of mesenteric heterotopic ossification: Histopathologic and genetic findings. AB - Mesenteric heterotopic ossification (MHO) is very rare and occurs in mid- to late adulthood, usually in the context of prior abdominal surgery. The mechanisms of MHO are unknown. Here we describe the case of a 72-year-old man with MHO. Standard histological staining revealed that MHO occurred through an endochondral process. By comparison to known mutations in genetic conditions of HO such as fibrodysplasia ossificans progressiva (FOP) and progressive osseous heteroplasia (POH), DNA sequencing analysis demonstrated the presence of a commonly occurring heterozygous synonymous polymorphism (c.690G>A; E230E) in the causative gene for FOP (ACVR1/ALK2). However, no frameshift, missense, or nonsense mutations in ACVR1, or in the causative gene for POH (GNAS), were found. Although genetic predisposition may play a role in MHO, our data suggest that mutations which occur in known hereditary conditions of HO are not the primary cause. PMID- 29320715 TI - Subcortical pathways to extrastriate visual cortex underlie residual vision following bilateral damage to V1. AB - Residual vision, or blindsight, following damage to the primary visual cortex (V1) has been investigated for almost half a century. While there have been many studies of patients with unilateral damage to V1, far fewer have examined bilateral damage, mainly due to the rarity of such patients. Here we re-examine the residual visual function and underlying pathways of previously studied patient SBR who, as a young adult, suffered bilateral damage restricted to V1 which rendered him cortically blind. While earlier work compared his visual cortex to healthy, sighted participants, here we consider how his visual responses and connections compare to patients with unilateral damage to V1 in addition to sighted participants. Detection of drifting Gabor patches of different contrasts (1%, 5%, 10%, 50% and 100%) was tested in SBR and a group of eight patients with unilateral damage to V1. Performance was compared to the neural activation in motion area hMT+ measured using functional magnetic resonance imaging. Diffusion tractography was also used to determine the white matter microstructure of the visual pathways in all participants. Like the patients with unilateral damage, patient SBR showed increased % BOLD signal change to the high contrast stimuli that he could detect compared to the lower contrast stimuli that were not detectable. Diffusion tractography suggests this information is conveyed by a direct pathway between the lateral geniculate nucleus (LGN) and hMT+ since this pathway had microstructure that was comparable to the healthy control group. In contrast, the pathway between LGN and V1 had reduced integrity compared to controls. A further finding of note was that, unlike control participants, SBR showed similar patterns of contralateral and ipsilateral activity in hMT+, in addition to healthy white matter microstructure in the tract connecting hMT+ between the two hemispheres. This raises the possibility of increased connectivity between the two hemispheres in the absence of V1 input. In conclusion, the pattern of visual function and anatomy in bilateral cortical damage is comparable to that seen in a group of patients with unilateral damage. Thus, while the intact hemisphere may play a role in residual vision in patients with unilateral damage, its influence is not evident with the methodology employed here. PMID- 29320711 TI - Anatomical, Physiological, and Functional Diversity of Adipose Tissue. AB - Adipose tissue depots can exist in close association with other organs, where they assume diverse, often non-traditional functions. In stem cell-rich skin, bone marrow, and mammary glands, adipocytes signal to and modulate organ regeneration and remodeling. Skin adipocytes and their progenitors signal to hair follicles, promoting epithelial stem cell quiescence and activation, respectively. Hair follicles signal back to adipocyte progenitors, inducing their expansion and regeneration, as in skin scars. In mammary glands and heart, adipocytes supply lipids to neighboring cells for nutritional and metabolic functions, respectively. Adipose depots adjacent to skeletal structures function to absorb mechanical shock. Adipose tissue near the surface of skin and intestine senses and responds to bacterial invasion, contributing to the body's innate immune barrier. As the recognition of diverse adipose depot functions increases, novel therapeutic approaches centered on tissue-specific adipocytes are likely to emerge for a range of cancers and regenerative, infectious, and autoimmune disorders. PMID- 29320716 TI - Distinct roles of systemic and local actions of insulin on pancreatic beta-cells. AB - OBJECTIVE: Pancreatic beta-cell mass and function are critical in glucose homeostasis. Their regulatory mechanisms have been studied principally under experimental conditions of reduced beta-cell numbers, such as beta-cell ablation and partial pancreatectomy. In the present study, we generated an opposite mouse model with an excessive amount of ectopic beta-cells, and analyzed its consequence on beta-cell mass and survival. METHODS: Mice underwent sub-renal transplantation (SRT) of pseudo-islets generated from a pancreatic beta-cell line MIN6 or intra-pancreatic transplantation (IPT) of MIN6 cells, and morphological and functional changes of their endocrine pancreata were analyzed. Cellular fate of pancreatic beta-cells after transplantation was traced using RipCre:Rosa26 tdTomato mice. By using MIN6 cells, we evaluated the roles of extracellular glucose, membrane potential, and insulin signaling on beta-cell survival. RESULTS: SRT mice developed severe, progressive hypoglycemia associated with marked reduction in insulin-positive (Ins+) cell mass and apparent increase in apoptotic Ins+ cells. In in vitro experiments of MIN6 cells, insulin signaling blockade potently induced cell death, suggesting that local insulin action is required for beta-cell survival. In fact, IPT (i.e. transplantation close to endogenous beta-cells) resulted in fewer apoptotic Ins+ cells compared with those induced by SRT. On the other hand, beta-cell mass was decreased in proportion to the decrease in blood glucose levels in both SRT and IPT mice, suggesting a contribution of hypoglycemia induced by systemic hyperinsulinemia. CONCLUSION: Insulin plays distinct roles in beta-cell survival and beta-cell mass regulation through its local and systemic actions on beta-cells, respectively. PMID- 29320717 TI - Imitation of phase I metabolism reactions of MAO-A inhibitors by titanium dioxide photocatalysis. AB - The imitation of phase I metabolism of moclobemide and toloxatone, two monoamine oxidase type A (MAO-A) inhibitors, was performed with the use of titanium dioxide photocatalytic process. Ultra high pressure liquid chromatography system coupled with an accurate hybrid ESI-Q-TOF mass spectrometer was used for the evaluation of metabolic profiles, structural elucidation of the identified transformation products and quantitative analysis of the process. Based on high resolution MS and MS/MS data, eleven transformation products were characterized in photocatalytic experiments for moclobemide and seven products for toloxatone. A significant number of these products were found as hepatic metabolites under the incubation of the selected MAO-A inhibitors with human liver microsomes (HLM). What is important, some of these HLM metabolites are not yet described in the literature. It was also found that the multivariate chemometric analysis allowed an effortless characterization of the registered metabolic profiles which can be a useful method for a fast preliminary drug metabolism study. Additionally, principal component analysis (PCA) of the registered TOF (MS) photocatalytic and HLM profiles of moclobemide and toloxatone shows that shorter irradiation time is preferred for photocatalytic metabolism experiments. A heterogeneous photocatalysis with the use of titanium dioxide was found to be a powerful tool for mimicking phase I metabolic reactions, as a fast, sensitive and inexpensive method. PMID- 29320718 TI - Adiposity and family history of type 2 diabetes in an admixed population of adolescents: Associations with insulin sensitivity, beta-cell function, and hepatic insulin extraction in BRAMS study. AB - AIMS: Insulin resistance and beta-cell dysfunction manifest differently across racial/ethnic groups, and there is a lack of knowledge regarding the pathophysiology of type 2 diabetes mellitus (T2DM) for ethnically admixed adolescents. This study aimed to investigate the influence of adiposity and family history (FH) of T2DM on aspects of insulin sensitivity, beta-cell function, and hepatic insulin extraction in Brazilian adolescents. METHODS: A total of 82 normoglycemic adolescents were assessed. The positive FH of T2DM was defined as the presence of at least one known family member with T2DM. The hyperglycemic clamp test consisted of a 120-min protocol. Insulin secretion and beta-cell function were obtained from C-peptide deconvolution. Analysis of covariance considered pubertal stage as a covariate. RESULTS: Both lean and overweight/obese adolescents had similar glycemic profiles and disposition indexes. Overweight/obese adolescents had about 1/3 the insulin sensitivity of lean adolescents (1.1 +/- 0.2 vs. 3.4 +/- 0.3 mg.kg.min.pmol * 1000), which was compensated by an increase around 2.5 times in basal (130 +/- 7 vs. 52 +/- 10 pmol.l.min) and total insulin secretion (130,091 +/- 12,230 vs. 59,010 +/- 17,522 pmol.l.min), and in the first and second phases of insulin secretion; respectively (p < 0.001). This increase was accompanied by a mean reduction in hepatic insulin extraction of 35%, and a 2.7-time increase in beta-cell glucose sensitivity (p < 0.05). The positive FH of T2DM was not associated with derangements in insulin sensitivity, beta-cell function, and hepatic insulin extraction. CONCLUSIONS: In an admixed sample of adolescents, the hyperglycemic clamp test demonstrated that adiposity had a strong influence, and FH of T2DM had no direct influence, in different aspects of glucose metabolism. PMID- 29320719 TI - Genetic diversity of Cryptosporidium isolates from human populations in an urban area of Northern Tunisia. AB - Cryptosporidium is an enteric parasite infecting a wide range of hosts. It has emerged as an important cause of chronic life-threatening diarrhea in humans worldwide. Several subtypes of Cryptosporidium sp. have been described to be responsible for several large outbreaks related to water contamination in developed countries. However, there is a lack of information in the genetic diversity of Cryptosporidium among human population especially in developing countries. The present study aimed to update and report the genetic diversity of human Cryptosporidium spp. at the subtype level in an urban area of Tunisia using the 18S rRNA and gp60 gene. Genotyping of 42 Cryptosporidium positive isolates from different human populations at the 18S rRNA locus has identified three Cryptosporidium species: C. hominis (n = 20), C. parvum (n = 19), C. meleagridis (n = 2) and a co-infection C. hominis/C. meleagridis (n = 1). The sub-genotyping of these isolates at the 60-kda glycoprotein (gp60) locus was possible in 40 cases. It showed the presence of three subtype families (IIa, IIb and IIc) within C. parvum, a single subtype family within C. hominis and C. meleagridis isolates (Ia and IIIb respectively). Several subtypes were implicated in different human populations with the dominance of IaA26G1R1, IIaA15G2R1, IIdA16G1R1, IIdA22G2R1 and IIIbA26G1R1 variant respectively for C. hominis, C. parvum and C. meleagridis. The distribution of Cryptosporidium isolates in urban area of Northern Tunisia was dominated by the anthroponotic transmission via C. hominis species and the IIc subtype of C. parvum. However, zoonotic transmission is still possible in this region via zoonotic subtypes of C. parvum (IIa and IId) and C. meleagridis (IIIb). Subtype diversity was higher in this area. PMID- 29320720 TI - Simultaneous emergence and rapid spread of three OXA-23 producing Acinetobacter baumannii ST208 strains in intensive care units confirmed by whole genome sequencing. AB - Carbapenem-resistant Acinetobacter baumannii (CRAB) is a common nosocomial bacterial pathogen with limited treatment options. CRAB outbreaks are disastrous for critically ill patients. This study investigated carbapenemase-produced A. baumannii outbreaks in a tertiary hospital. Although multiple outbreaks were suggested by pulse-field gel electrophoresis, the genetic lineages and evolution between these isolates were not clear. To investigate the genomic epidemiology of these outbreaks and to reveal possible transmission routes, whole genome sequences (WGS) were compared and analyzed. From the WGS data, thirty isolates had the same sequence type (ST208); acquired resistance genes and chromosome resistant genes were detected and were responsible for multidrug resistance. A phylogenetic tree of single-nucleotide polymorphisms (SNPs) compared to the earliest index isolate found that three outbreaks had emerged and disseminated simultaneously. Of these, <10 SNPs were detected within the cluster, whereas at least 600 SNPs were found between the clusters. The probable transmission routes of outbreaks were generated combined with the genetic distance of isolates and patient epidemiological data. In conclusion, WGS was a convenient and accurate monitoring method for genomic epidemiologic investigation of outbreaks, and the genomic surveillance of multidrug-resistant bacterial pathogens would be a powerful warning system for the surveillance and prevention of outbreaks. PMID- 29320721 TI - Strong and biocompatible three-dimensional porous silk fibroin/graphene oxide scaffold prepared by phase separation. AB - Silk fibroin (SF) is blended with graphene oxide (GO) to prepare the strong and biocompatible three dimensional porous SF/GO blended scaffold via phase separation. GO could be well dispersed in SF solution and GO could also be well distributed in the SF scaffold. Furthermore, the introduction of GO can lead to structural change in the bended scaffold. Higher concentration of GO resulted in more compact structure and smaller pore size of the composite scaffolds without decreasing their porosity. Scanning electron microscopy and energy dispersive spectrometry results also reveal that SF and GO are homogeneous blended together. Analysis of chemical structures of the scaffold shows that addition of GO do not affect the crystalline structure of SF and it is evenly blended with SF. The blended scaffold has significantly higher breaking strength than the pure SF scaffold. In vitro study indicates that both pure SF scaffold and SF/GO composite scaffold support growth and proliferation of MC3T3-E1 osteoprogenitor cells. However, the addition of GO contribute to the proliferation of MC3T3-E1 osteoprogenitor. The testing results show that the blended scaffold is an appropriate candidate for tissue engineering. PMID- 29320722 TI - Biodegradation and ecotoxicological impact of cellulose nanocomposites in municipal solid waste composting. AB - Biodegradable nanocomposites were prepared from polyvinyl alcohol (PVA) and cellulose nanofiber (CNF) by using liquid nitrogen, freeze drying and hot press techniques. The effect of CNF content on the biodegradability of the films was investigated by visual observation, scanning electron microscopy (SEM), weight loss, CO2 evolution, differential scanning calorimetry, measuring the amount of mineralized carbon of the specimens buried in municipal solid waste. Ecotoxicity was evaluated by plants growth tests with cress and spinach. The results confirmed that the weight loss of nanocomposites was lower than that of neat PVA because of the zigzag pathways of microorganisms in the CNF presence. The SEM analysis showed extensive surface roughness and cracks for all samples, indicating the initiation of biodegradation. The CO2 evolution decreased with increasing CNF content from 0% to 10% and then, increased with further increase in the filler content (up to 30 wt%). The crystallinity of the PVA and its nanocomposites increased as a function of time because of the amorphous parts degradation. Preliminary results of the ecotoxicological test revealed that all the nanocomposites and neat PVA did not generate any negative effects on germination or development of the studied vegetal species. PMID- 29320723 TI - Comparative study of structural and functional characterization of bran protein concentrates from superfine, fine and coarse rice cultivars. AB - Rice bran protein concentrates prepared from superfine, fine and coarse cultivars were assessed for their physicochemical, structural, functional properties and digestibility. The protein concentrates differed in structural, thermal and functional properties. Rice bran protein concentrate of fine cultivar (F-RBPC) had relatively more beta-sheets (42.81%) and less alpha-helix (15.03%) and beta turns (21.98%) than that of superfine (SF-RBPC) and coarse (C-RBPC) cultivars. Thermal denaturation temperature (Td) was similar for all cultivars, whereas enthalpy of denaturation (DeltaH) was high for F-RBPC. Essential and uncharged polar amino acids were the highest in F-RBPC and the lowest in C-RBPC. SF-RBPC had higher digestibility in comparison to F-RBPC and C-RBPC. Surface hydrophobicity, protein solubility and foaming capacity were greatest for F-RBPC. Whereas, SF-RBPC exhibited better foaming stability and emulsion activity and C RBPC displayed more stable emulsion. Principal component analysis revealed that Td and DeltaH were positively correlated with beta-sheets content. Foaming capacity and protein solubility were related positively with surface hydrophobicity and negatively charged or uncharged polar amino acids. Emulsion properties were negatively correlated with hydrophobicity. In vitro digestibility of protein was negatively correlated to the ratio of Arginine to Lysine. PMID- 29320724 TI - Purification and characterization of a novel high molecular weight alkaline protease produced by an endophytic Bacillus halotolerans strain CT2. AB - A protease-producing strain CT2 isolated from Tunisian potatoes, exhibiting a potent protease activity (prot CT2), was identified as Bacillus halotolerans according to 16S ribosomal DNA sequence analysis. Maximum prot CT2 production was obtained in medium supplemented with bean seed proteins. Proteolytic activity was purified by ammonium sulphate precipitation, Sephacryl S-200 gel filtration and SP-sepharose cation-exchange chromatography. Optimal enzyme activity was reached at pH 9 and temperature of 50 degrees C. Proteolytic activity was enhanced by Ca2+ and Mn2+ ions, completely inhibited by PMSF suggesting a serine protease nature and exhibited high stability in the presence of commercial detergents. Prot CT2 showed broad substrate specificity towards both synthetic and natural substrates, with a high capacity to hydrolyze legume seed proteins. Using electrophoretic analysis, its molecular weight was around 250 kDa with two major subunit showing important homologies with serine proteases belonging to the subtilisin-like serine proteases. Based on the Lineweaver-Burk plots Km and Vmax values were 10 mg/ml and 50,000 U/mg respectively. This newly described prot CT2 displays relevant properties which highlight its potential use in various industrial and biotechnological applications. PMID- 29320725 TI - Keratin based bioplastic film from chicken feathers and its characterization. AB - Plastics have been one of the highly valued materials and it plays an significant role in human's life such as in food packaging and biomedical applications. Bioplastic materials can gradually work as a substitute for various materials based on fossil oil. The issue like sustainability and environmental challenges which occur due to manufacturing and disposal of synthetic plastics can be conquering by bio-based plastics. Feathers are among the most inexpensive abundant, and renewable protein sources. Feathers disposal to the landfills leads to environmental pollutions and it results into wastage of 90% of protein raw material. Keratin is non-burning hydrophilic, and biodegradable due to which it can be applicable in various ways via chemical processing. Main objective of this research is to synthesis bioplastic using keratin from chicken feathers. Extracted keratin solution mixed with different concentration of glycerol (2 to 10%) to produce plastic films. The mixture was stirred under constant magnetic stirring at 60 degrees C for 5 h. The mixtures are then poured into aluminum weighing boat and dried in an oven at 60 degrees C for 24 h. The mechanical properties of the samples were tested and the physic-chemical properties of the bioplastic were studied. According to the results, Scanning Electron Microscopy test showed good compatible morphologies without holes, cavity and edge. The difference in chemical composition was analyzed using Fourier transform infrared spectroscopy (FTIR). The samples were also characterized by thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC), X-Ray diffraction (XRD) to check the thermal and crystallinity properties. Other than that, bioplastic made up from keratin with 2% of glycerol has the best mechanical and thermal properties. According to biodegradability test, all bioplastic produced are proven biodegradable. Therefore, the results showed possible application of the film as an alternative to fossil oil based materials which are harmful to the environment. PMID- 29320726 TI - Pullulanase treatments to increase resistant starch content of black chickpea (Cicer arietinum L.) starch and the effects on starch properties. AB - This study aimed to increase resistant starch (RS) content of black chickpeas (Cicer arietinum L.) by using pullulanase enzyme. Physicochemical and functional properties of enzyme treated starch (NE) was compared with that of enzyme-treated and gelatinized starch (GE) and the retrograded control starch (RC). RS contents for native black chickpea starch (NS) and black chickpea flour (NF) were measured as 15.2% and 5.0%, respectively. While for NE and GE, were found as 16.4% and 12.3%, respectively. Treatments made on the NS, increased the amount of RDS and reduced the amount of SDS significantly (p < .05). When the effect of enzyme application-autoclaving and retrogradation were compared, 41.3% increase in RS content was measured. In this study; RS3 production from black chickpea starch by a pullulanase enzyme was successfully performed. Enzymatic applications also improved the functional properties such as water absorption capacity, water solubility index value, fat binding capacity and emulsifying capacity. This enzyme treated black chickpea starch samples, being functionally improved, will possibly help to produce different products with desired quality parameters. Therefore, instead of native starch, pullulanase treated black chickpea starch may be used as a functional ingredient for increasing the amount of RS in food formulations. PMID- 29320727 TI - Polysaccharide structure and immunological relationships of RG-I pectin from the bee pollen of Nelumbo nucifera. AB - From the bee pollen of Nelumbo nucifera, we used hot water extraction and chromatographic fractionation on DEAE-cellulose and Sepharose CL-6B to purify polysaccharides (WNPP) to homogeneity. WNPP-2-RG (3.8 * 105 Da) consisted primarily of Rha (11.5%), GalA (12.0%), Gal (41.2%) and Ara (29.7%). Structure analysis showed that this polysaccharide is a RG-I type pectin containing AG-I and AG-II side chains comprised of 1,5-L-Ara (25.6%), t-D-Gal (12.0%), and 1,6-D Gal (18.3%) as the primary linkage types. Immunological activity assays demonstrated that WNPP-2-RG increased lymphocyte proliferation and macrophage phagocytosis, and induced production of NO. Compared to WNPP-2-RG, its hydrolysates (RG-8H-P) had no effect on lymphocyte proliferation, although they did promote macrophage phagocytosis and decreased NO production. Our results suggest that Gal side chain residues may play a crucial role in macrophage phagocytosis, whereas Ara is unimportant for NO production and neither Gal nor Ara impact lymphocyte proliferation. PMID- 29320728 TI - In Vivo Function of the Chaperonin TRiC in alpha-Actin Folding during Sarcomere Assembly. AB - The TCP-1 ring complex (TRiC) is a multi-subunit group II chaperonin that assists nascent or misfolded proteins to attain their native conformation in an ATP dependent manner. Functional studies in yeast have suggested that TRiC is an essential and generalized component of the protein-folding machinery of eukaryotic cells. However, TRiC's involvement in specific cellular processes within multicellular organisms is largely unknown because little validation of TRiC function exists in animals. Our in vivo analysis reveals a surprisingly specific role of TRiC in the biogenesis of skeletal muscle alpha-actin during sarcomere assembly in myofibers. TRiC acts at the sarcomere's Z-disk, where it is required for efficient assembly of actin thin filaments. Binding of ATP specifically by the TRiC subunit Cct5 is required for efficient actin folding in vivo. Furthermore, mutant alpha-actin isoforms that result in nemaline myopathy in patients obtain their pathogenic conformation via this function of TRiC. PMID- 29320729 TI - Corneal-Committed Cells Restore the Stem Cell Pool and Tissue Boundary following Injury. AB - During morphogenesis, preserving tissue boundaries is essential for cell fate regulation. While embryonic tissues possess high plasticity and repair ability, the questions of whether and how adult tissues cope with acute stem cell (SC) loss or boundary disruption have remained unanswered. Here, we report that K15 GFP transgene labels the murine corneal epithelial boundary and SC niche known as the limbus. K15-GFP+ basal cells expressed SC markers and were located at the corneal regeneration site, as evident by lineage tracing. Remarkably, following surgical deletion of the SC pool, corneal-committed cells dedifferentiated into bona fide limbal SCs that retained normal tissue dynamics and marker expression. Interestingly, however, damage to the limbal stromal niche abolished K15-GFP recovery and led to pathological wound healing. Altogether, this study indicates that committed corneal cells possess plasticity to dedifferentiate, repopulate the SC pool, and correctly re-form the tissue boundary in the presence of intact stroma. PMID- 29320730 TI - Esrrb Complementation Rescues Development of Nanog-Null Germ Cells. AB - The transcription factors (TFs) Nanog and Esrrb play important roles in embryonic stem cells (ESCs) and during primordial germ-cell (PGC) development. Esrrb is a positively regulated direct target of NANOG in ESCs that can substitute qualitatively for Nanog function in ESCs. Whether this functional substitution extends to the germline is unknown. Here, we show that germline deletion of Nanog reduces PGC numbers 5-fold at midgestation. Despite this quantitative depletion, Nanog-null PGCs can complete germline development in contrast to previous findings. PGC-like cell (PGCLC) differentiation of Nanog-null ESCs is also impaired, with Nanog-null PGCLCs showing decreased proliferation and increased apoptosis. However, induced expression of Esrrb restores PGCLC numbers as efficiently as Nanog. These effects are recapitulated in vivo: knockin of Esrrb to Nanog restores PGC numbers to wild-type levels and results in fertile adult mice. These findings demonstrate that Esrrb can replace Nanog function in germ cells. PMID- 29320731 TI - Durable Interactions of T Cells with T Cell Receptor Stimuli in the Absence of a Stable Immunological Synapse. AB - T cells engage in two modes of interaction with antigen-presenting surfaces: stable synapses and motile kinapses. Although it is surmised that durable interactions of T cells with antigen-presenting cells involve synapses, in situ 3D imaging cannot resolve the mode of interaction. We have established in vitro 2D platforms and quantitative metrics to determine cell-intrinsic modes of interaction when T cells are faced with spatially continuous or restricted stimulation. All major resting human T cell subsets, except memory CD8 T cells, spend more time in the kinapse mode on continuous stimulatory surfaces. Surprisingly, we did not observe any concordant relationship between the mode and durability of interaction on cell-sized stimulatory spots. Naive CD8 T cells maintain kinapses for more than 3 hr before leaving stimulatory spots, whereas their memory counterparts maintain synapses for only an hour before leaving. Thus, durable interactions do not require stable synapses. PMID- 29320733 TI - DNA Unwinding Is the Primary Determinant of CRISPR-Cas9 Activity. AB - Bacterial adaptive immunity utilizes RNA-guided surveillance complexes comprising Cas proteins together with CRISPR RNAs (crRNAs) to target foreign nucleic acids for destruction. Cas9, a type II CRISPR-Cas effector complex, can be programed with a single-guide RNA that base pairs with the target strand of dsDNA, displacing the non-target strand to create an R-loop, where the HNH and the RuvC nuclease domains cleave opposing strands. While many structural and biochemical studies have shed light on the mechanism of Cas9 cleavage, a clear unifying model has yet to emerge. Our detailed kinetic characterization of the enzyme reveals that DNA binding is reversible, and R-loop formation is rate-limiting, occurring in two steps, one for each of the nuclease domains. The specificity constant for cleavage is determined through an induced-fit mechanism as the product of the equilibrium binding affinity for DNA and the rate of R-loop formation. PMID- 29320732 TI - Stabilization of NF-kappaB-Inducing Kinase Suppresses MLL-AF9-Induced Acute Myeloid Leukemia. AB - Canonical NF-kappaB signaling is constitutively activated in acute myeloid leukemia (AML) stem cells and is required for maintenance of the self-renewal of leukemia stem cells (LSCs). However, any potential role for NF-kappaB non canonical signaling in AML has been largely overlooked. Here, we report that stabilization of NF-kappaB-inducing kinase (NIK) suppresses AML. Mechanistically, stabilization of NIK activates NF-kappaB non-canonical signaling and represses NF kappaB canonical signaling. In addition, stabilization of NIK-induced activation of NF-kappaB non-canonical signaling upregulates Dnmt3a and downregulates Mef2c, which suppresses and promotes AML development, respectively. Importantly, by querying the connectivity MAP using up- and downregulated genes that are present exclusively in NIK-stabilized LSCs, we discovered that verteporfin has anti-AML effects, suggesting that repurposing verteporfin to target myeloid leukemia is worth testing clinically. Our data provide a scientific rationale for developing small molecules to stabilize NIK specifically in myeloid leukemias as an attractive therapeutic option. PMID- 29320734 TI - The Conformational Dynamics of Cas9 Governing DNA Cleavage Are Revealed by Single Molecule FRET. AB - Off-target binding and cleavage by Cas9 pose major challenges in its application. How the conformational dynamics of Cas9 govern its nuclease activity under on- and off-target conditions remains largely unknown. Here, using intra-molecular single-molecule fluorescence resonance energy transfer measurements, we revealed that Cas9 in apo, sgRNA-bound, and dsDNA/sgRNA-bound forms spontaneously transits among three major conformational states, mainly reflecting significant conformational mobility of the catalytic HNH domain. We also uncovered surprising long-range allosteric communication between the HNH domain and the RNA/DNA heteroduplex at the PAM-distal end to ensure correct positioning of the catalytic site, which demonstrated that a unique proofreading mechanism served as the last checkpoint before DNA cleavage. Several Cas9 residues were likely to mediate the allosteric communication and proofreading step. Modulating interactions between Cas9 and heteroduplex at the PAM-distal end by introducing mutations on these sites provides an alternative route to improve and optimize the CRISPR/Cas9 toolbox. PMID- 29320735 TI - RYBP Is a K63-Ubiquitin-Chain-Binding Protein that Inhibits Homologous Recombination Repair. AB - Ring1-YY1-binding protein (RYBP) is a member of the non-canonical polycomb repressive complex 1 (PRC1), and like other PRC1 members, it is best described as a transcriptional regulator. However, several PRC1 members were recently shown to function in DNA repair. Here, we report that RYBP preferentially binds K63 ubiquitin chains via its Npl4 zinc finger (NZF) domain. Since K63-linked ubiquitin chains are assembled at DNA double-strand breaks (DSBs), we examined the contribution of RYBP to DSB repair. Surprisingly, we find that RYBP is K48 polyubiquitylated by RNF8 and rapidly removed from chromatin upon DNA damage by the VCP/p97 segregase. High expression of RYBP competitively inhibits recruitment of BRCA1 repair complex to DSBs, reducing DNA end resection and homologous recombination (HR) repair. Moreover, breast cancer cell lines expressing high endogenous RYBP levels show increased sensitivity to DNA-damaging agents and poly ADP-ribose polymerase (PARP) inhibition. These data suggest that RYBP negatively regulates HR repair by competing for K63-ubiquitin chain binding. PMID- 29320736 TI - The RNA Polymerase II Factor RPAP1 Is Critical for Mediator-Driven Transcription and Cell Identity. AB - The RNA polymerase II-associated protein 1 (RPAP1) is conserved across metazoa and required for stem cell differentiation in plants; however, very little is known about its mechanism of action or its role in mammalian cells. Here, we report that RPAP1 is essential for the expression of cell identity genes and for cell viability. Depletion of RPAP1 triggers cell de-differentiation, facilitates reprogramming toward pluripotency, and impairs differentiation. Mechanistically, we show that RPAP1 is essential for the interaction between RNA polymerase II (RNA Pol II) and Mediator, as well as for the recruitment of important regulators, such as the Mediator-specific RNA Pol II factor Gdown1 and the C terminal domain (CTD) phosphatase RPAP2. In agreement, depletion of RPAP1 diminishes the loading of total and Ser5-phosphorylated RNA Pol II on many genes, with super-enhancer-driven genes among the most significantly downregulated. We conclude that Mediator/RPAP1/RNA Pol II is an ancient module, conserved from plants to mammals, critical for establishing and maintaining cell identity. PMID- 29320738 TI - Trapping of Syntaxin1a in Presynaptic Nanoclusters by a Clinically Relevant General Anesthetic. AB - Propofol is the most commonly used general anesthetic in humans. Our understanding of its mechanism of action has focused on its capacity to potentiate inhibitory systems in the brain. However, it is unknown whether other neural mechanisms are involved in general anesthesia. Here, we demonstrate that the synaptic release machinery is also a target. Using single-particle tracking photoactivation localization microscopy, we show that clinically relevant concentrations of propofol and etomidate restrict syntaxin1A mobility on the plasma membrane, whereas non-anesthetic analogs produce the opposite effect and increase syntaxin1A mobility. Removing the interaction with the t-SNARE partner SNAP-25 abolishes propofol-induced syntaxin1A confinement, indicating that syntaxin1A and SNAP-25 together form an emergent drug target. Impaired syntaxin1A mobility and exocytosis under propofol are both rescued by co-expressing a truncated syntaxin1A construct that interacts with SNAP-25. Our results suggest that propofol interferes with a step in SNARE complex formation, resulting in non functional syntaxin1A nanoclusters. PMID- 29320737 TI - Genomic Circuitry Underlying Immunological Response to Pediatric Acute Respiratory Infection. AB - Acute respiratory tract viral infections (ARTIs) cause significant morbidity and mortality. CD8 T cells are fundamental to host responses, but transcriptional alterations underlying anti-viral mechanisms and links to clinical characteristics remain unclear. CD8 T cell transcriptional circuitry in acutely ill pediatric patients with influenza-like illness was distinct for different viral pathogens. Although changes included expected upregulation of interferon stimulated genes (ISGs), transcriptional downregulation was prominent upon exposure to innate immune signals in early IFV infection. Network analysis linked changes to severity of infection, asthma, sex, and age. An influenza pediatric signature (IPS) distinguished acute influenza from other ARTIs and outperformed other influenza prediction gene lists. The IPS allowed a deeper investigation of the connection between transcriptional alterations and clinical characteristics of acute illness, including age-based differences in circuits connecting the STAT1/2 pathway to ISGs. A CD8 T cell-focused systems immunology approach in pediatrics identified age-based alterations in ARTI host response pathways. PMID- 29320739 TI - Variation in Activity State, Axonal Projection, and Position Define the Transcriptional Identity of Individual Neocortical Projection Neurons. AB - Single-cell RNA sequencing has generated catalogs of transcriptionally defined neuronal subtypes of the brain. However, the cellular processes that contribute to neuronal subtype specification and transcriptional heterogeneity remain unclear. By comparing the gene expression profiles of single layer 6 corticothalamic neurons in somatosensory cortex, we show that transcriptional subtypes primarily reflect axonal projection pattern, laminar position within the cortex, and neuronal activity state. Pseudotemporal ordering of 1,023 cellular responses to sensory manipulation demonstrates that changes in expression of activity-induced genes both reinforced cell-type identity and contributed to increased transcriptional heterogeneity within each cell type. This is due to cell-type biased choices of transcriptional states following manipulation of neuronal activity. These results reveal that axonal projection pattern, laminar position, and activity state define significant axes of variation that contribute both to the transcriptional identity of individual neurons and to the transcriptional heterogeneity within each neuronal subtype. PMID- 29320741 TI - Endocytosis of KATP Channels Drives Glucose-Stimulated Excitation of Pancreatic beta Cells. AB - Insulin secretion from pancreatic beta cells in response to high glucose (HG) critically depends on the inhibition of KATP channel activity in HG. It is generally believed that HG-induced effects are mediated by the increase in intracellular ATP, but here, we showed that, in INS-1 cells, endocytosis of KATP channel plays a major role. Upon HG stimulation, resting membrane potential depolarized by 30.6 mV (from -69.2 to -38.6 mV) and KATP conductance decreased by 91% (from 0.243 to 0.022 nS/pF), whereas intracellular ATP was increased by only 47%. HG stimulation induced internalization of KATP channels, causing a significant decrease in surface channel density, and this decrease was completely abolished by inhibiting endocytosis using dynasore, a dynamin inhibitor, or a PKC inhibitor. These drugs profoundly inhibited HG-induced depolarization. Our results suggest that the control of KATP channel surface density plays a greater role than ATP-dependent gating in regulating beta cell excitability. PMID- 29320740 TI - PlexinA2 Forward Signaling through Rap1 GTPases Regulates Dentate Gyrus Development and Schizophrenia-like Behaviors. AB - Dentate gyrus (DG) development requires specification of granule cell (GC) progenitors in the hippocampal neuroepithelium, as well as their proliferation and migration into the primordial DG. We identify the Plexin family members Plxna2 and Plxna4 as important regulators of DG development. Distribution of immature GCs is regulated by Sema5A signaling through PlxnA2 and requires a functional PlxnA2 GTPase-activating protein (GAP) domain and Rap1 small GTPases. In adult Plxna2-/- but not Plxna2-GAP-deficient mice, the dentate GC layer is severely malformed, neurogenesis is compromised, and mossy fibers form aberrant synaptic boutons within CA3. Behavioral studies with Plxna2-/- mice revealed deficits in associative learning, sociability, and sensorimotor gating-traits commonly observed in neuropsychiatric disorder. Remarkably, while morphological defects are minimal in Plxna2-GAP-deficient brains, defects in fear memory and sensorimotor gating persist. Since allelic variants of human PLXNA2 and RAP1 associate with schizophrenia, our studies identify a biochemical pathway important for brain development and mental health. PMID- 29320742 TI - Defective Mitochondrial tRNA Taurine Modification Activates Global Proteostress and Leads to Mitochondrial Disease. AB - A subset of mitochondrial tRNAs (mt-tRNAs) contains taurine-derived modifications at 34U of the anticodon. Loss of taurine modification has been linked to the development of mitochondrial diseases, but the molecular mechanism is still unclear. Here, we showed that taurine modification is catalyzed by mitochondrial optimization 1 (Mto1) in mammals. Mto1 deficiency severely impaired mitochondrial translation and respiratory activity. Moreover, Mto1-deficient cells exhibited abnormal mitochondrial morphology owing to aberrant trafficking of nuclear DNA encoded mitochondrial proteins, including Opa1. The mistargeted proteins were aggregated and misfolded in the cytoplasm, which induced cytotoxic unfolded protein response. Importantly, application of chemical chaperones successfully suppressed cytotoxicity by reducing protein misfolding and increasing functional mitochondrial proteins in Mto1-deficient cells and mice. Thus, our results demonstrate the essential role of taurine modification in mitochondrial translation and reveal an intrinsic protein homeostasis network between the mitochondria and cytosol, which has therapeutic potential for mitochondrial diseases. PMID- 29320743 TI - A p300 and SIRT1 Regulated Acetylation Switch of C/EBPalpha Controls Mitochondrial Function. AB - Cellular metabolism is a tightly controlled process in which the cell adapts fluxes through metabolic pathways in response to changes in nutrient supply. Among the transcription factors that regulate gene expression and thereby cause changes in cellular metabolism is the basic leucine-zipper (bZIP) transcription factor CCAAT/enhancer-binding protein alpha (C/EBPalpha). Protein lysine acetylation is a key post-translational modification (PTM) that integrates cellular metabolic cues with other physiological processes. Here, we show that C/EBPalpha is acetylated by the lysine acetyl transferase (KAT) p300 and deacetylated by the lysine deacetylase (KDAC) sirtuin1 (SIRT1). SIRT1 is activated in times of energy demand by high levels of nicotinamide adenine dinucleotide (NAD+) and controls mitochondrial biogenesis and function. A hypoacetylated mutant of C/EBPalpha induces the transcription of mitochondrial genes and results in increased mitochondrial respiration. Our study identifies C/EBPalpha as a key mediator of SIRT1-controlled adaption of energy homeostasis to changes in nutrient supply. PMID- 29320744 TI - Consumption of NADPH for 2-HG Synthesis Increases Pentose Phosphate Pathway Flux and Sensitizes Cells to Oxidative Stress. AB - Gain-of-function mutations in isocitrate dehydrogenase 1 (IDH1) occur in multiple types of human cancer. Here, we show that these mutations significantly disrupt NADPH homeostasis by consuming NADPH for 2-hydroxyglutarate (2-HG) synthesis. Cells respond to 2-HG synthesis, but not exogenous administration of 2-HG, by increasing pentose phosphate pathway (PPP) flux. We show that 2-HG production competes with reductive biosynthesis and the buffering of oxidative stress, processes that also require NADPH. IDH1 mutants have a decreased capacity to synthesize palmitate and an increased sensitivity to oxidative stress. Our results demonstrate that, even when NADPH is limiting, IDH1 mutants continue to synthesize 2-HG at the expense of other NADPH-requiring pathways that are essential for cell viability. Thus, rather than attempting to decrease 2-HG synthesis in the clinic, the consumption of NADPH by mutant IDH1 may be exploited as a metabolic weakness that sensitizes tumor cells to ionizing radiation, a commonly used anti-cancer therapy. PMID- 29320745 TI - The Foxo1-Inducible Transcriptional Repressor Zfp125 Causes Hepatic Steatosis and Hypercholesterolemia. AB - Liver-specific disruption of the type 2 deiodinase gene (Alb-D2KO) results in resistance to both diet-induced obesity and liver steatosis in mice. Here, we report that this is explained by an ~60% reduction in liver zinc-finger protein 125 (Zfp125) expression. Zfp125 is a Foxo1-inducible transcriptional repressor that causes lipid accumulation in the AML12 mouse hepatic cell line and liver steatosis in mice by reducing liver secretion of triglycerides and hepatocyte efflux of cholesterol. Zfp125 acts by repressing 18 genes involved in lipoprotein structure, lipid binding, and transport. The ApoE promoter contains a functional Zfp125-binding element that is also present in 17 other lipid-related genes repressed by Zfp125. While liver-specific knockdown of Zfp125 causes an "Alb-D2KO like" metabolic phenotype, liver-specific normalization of Zfp125 expression in Alb-D2KO mice rescues the phenotype, restoring normal susceptibility to diet induced obesity, liver steatosis, and hypercholesterolemia. PMID- 29320746 TI - SadA-Expressing Staphylococci in the Human Gut Show Increased Cell Adherence and Internalization. AB - A subgroup of biogenic amines, the so-called trace amines (TAs), are produced by mammals and bacteria and can act as neuromodulators. In the genus Staphylococcus, certain species are capable of producing TAs through the activity of staphylococcal aromatic amino acid decarboxylase (SadA). SadA decarboxylates aromatic amino acids to produce TAs, as well as dihydroxy phenylalanine and 5 hydroxytryptophan to thus produce the neurotransmitters dopamine and serotonin. SadA-expressing staphylococci were prevalent in the gut of most probands, where they are part of the human intestinal microflora. Furthermore, sadA-expressing staphylococci showed increased adherence to HT-29 cells and 2- to 3-fold increased internalization. Internalization and adherence was also increased in a sadA mutant in the presence of tryptamine. The alpha2-adrenergic receptor is required for enhanced adherence and internalization. Thus, staphylococci in the gut might contribute to gut activity and intestinal colonization. PMID- 29320747 TI - Identification of Cardiomyocyte-Fated Progenitors from Human-Induced Pluripotent Stem Cells Marked with CD82. AB - Here, we find that human-induced pluripotent stem cell (hiPSC)-derived cardiomyocyte (CM)-fated progenitors (CFPs) that express a tetraspanin family glycoprotein, CD82, almost exclusively differentiate into CMs both in vitro and in vivo. CD82 is transiently expressed in late-stage mesoderm cells during hiPSC differentiation. Purified CD82+ cells gave rise to CMs under nonspecific in vitro culture conditions with serum, as well as in vivo after transplantation to the subrenal space or injured hearts in mice, indicating that CD82 successfully marks CFPs. CD82 overexpression in mesoderm cells as well as in undifferentiated hiPSCs increased the secretion of exosomes containing beta-catenin and reduced nuclear beta-catenin protein, suggesting that CD82 is involved in fated restriction to CMs through Wnt signaling inhibition. This study may contribute to the understanding of CM differentiation mechanisms and to cardiac regeneration strategies. PMID- 29320748 TI - True Molecular Scale Visualization of Variable Clustering Properties of Ryanodine Receptors. AB - Signaling nanodomains rely on spatial organization of proteins to allow controlled intracellular signaling. Examples include calcium release sites of cardiomyocytes where ryanodine receptors (RyRs) are clustered with their molecular partners. Localization microscopy has been crucial to visualizing these nanodomains but has been limited by brightness of markers, restricting the resolution and quantification of individual proteins clustered within. Harnessing the remarkable localization precision of DNA-PAINT (<10 nm), we visualized punctate labeling within these nanodomains, confirmed as single RyRs. RyR positions within sub-plasmalemmal nanodomains revealed how they are organized randomly into irregular clustering patterns leaving significant gaps occupied by accessory or regulatory proteins. RyR-inhibiting protein junctophilin-2 appeared highly concentrated adjacent to RyR channels. Analyzing these molecular maps showed significant variations in the co-clustering stoichiometry between junctophilin-2 and RyR, even between nearby nanodomains. This constitutes an additional level of complexity in RyR arrangement and regulation of calcium signaling, intrinsically built into the nanodomains. PMID- 29320749 TI - Atypical multivacuolated lipoblasts and atypical mitoses are not compatible with the diagnosis of spindle cell/pleomorphic lipoma-reply. PMID- 29320750 TI - The many faces of intestinal tract gastric heterotopia; a series of four cases highlighting clinical and pathological heterogeneity. AB - Gastric heterotopia of the intestinal tract can have a diverse clinicopathologic presentation, resulting in a diagnostic dilemma. We present a series of four cases, two male and two female patients with age range of 31-82 years, found in the duodenum, jejunum, and transverse colon. The most common and rather unusual clinical presentation was iron deficiency anemia, seen in three cases, while one patient presented with abdominal pain. Endoscopically, two cases were visualized as pedunculated polyps and two as sessile/plaque-like lesions. Polypectomy was performed in three patients, and one patient underwent biopsy followed by resection. Two cases showed oxyntic-type epithelium, and two cases exhibited pyloric-type gastric epithelium. Three patients were relieved of their presenting symptoms after therapeutic procedures with no evidence of recurrence noted on follow-up. Follow-up was not available on one patient. This case series highlights a diverse clinicopathologic spectrum of gastric heterotopia. Accurate diagnosis is essential for proper management. PMID- 29320751 TI - Uterine rhabdomyosarcoma in adults. AB - Rhabdomyosarcoma (RMS) is an aggressive mesenchymal tumor most commonly diagnosed in the pediatric population, and when occurring in adults, tends to develop in the deep soft tissue of the limbs. Primary uterine RMS comprises an even more restricted subset, with little known or reported when compared to most other gynecologic sarcomas. Our goal with this study was to retrospectively evaluate cases from two academic institutions and describe the main histopathologic findings of this rare gynecologic malignancy. A total of 8 cases were identified, consisting of 4 pleomorphic rhabdomyosarcomas (PRMS), 2 alveolar rhabdomyosarcomas (ARMS), and 2 embryonal rhabdomyosarcomas (ERMS). They occurred in patients ranging from 22 to 70 years old, and the most common presenting symptom was vaginal bleeding. Most patients presented with advanced stage at diagnosis, including metastatic disease to lymph nodes and to distant sites. The masses were mostly (6/8) centered in the myometrium, while two cases arose in the cervix (2/8). Histologic characteristics of the tumors were dependent on the RMS subtype, although all cases demonstrated a similar immunohistochemical profile regardless of their subclassification. RMS of the uterus has a very poor prognosis, and data regarding treatment of this rare malignancy is limited, and usually extrapolated from non-uterine sites. PMID- 29320752 TI - The value of detection of S100A8 and ASAH1 in predicting the chemotherapy response for breast cancer patients. AB - Chemotherapy plays an important role in the treatment of breast cancer. However, chemoresistance remains the main obstacle for effective treatment, leading to poor prognosis. This study aims to investigate the value of detection of S100A8 and ASAH1 in predicting the chemotherapy response. Miller and Payne grades were used to assess the chemotherapy response in breast cancers. The expression of S100A8 and ASAH1, as well as ER, PR, HER2 and Ki-67 were assessed by immunohistochemical staining in 120 cases of non-special type invasive ductal carcinoma (IDC-NOS). S100A8 expression was higher in chemosensitive breast cancers than chemoresistant ones. Moreover, S100A8 expression was significantly correlated with the molecular subtypes and histological grade, but not with patients' age, tumor size and lymph nodes status. However, there was no significant difference in ASAH1 expression between chemoresistant and chemosensitive group. We also found that higher ASAH1 expression was correlated with positive lymph nodes status, but not with age, tumor size, molecular subtypes and histological grade. S100A8 was valuable in predicting chemotherapy response in breast cancers. The expression of ASAH1 was associated significantly with lymph nodes metastasis, indicating that ASAH1 may serve as a biomarker to predict patients' lymph nodes status in breast cancers. PMID- 29320753 TI - Prognostic significance of S100A16 subcellular localization in lung adenocarcinoma. AB - To discover novel tumor markers for lung adenocarcinoma (AC), we performed proteomics analysis and reported a correlation between S100A16 membranous expression in AC tissues and a poor prognosis. However, some patients with a good prognosis also showed S100A16 membranous staining. We re-evaluated immunohistochemically stained tissues, and found membrane-positive and nucleus negative expressions to be significantly higher in the presence of the following: male, smoker, positive nodal metastasis, higher p-TNM stage, larger tumor, poorer differentiation, positive for lymphatic invasion, positive for vascular invasion, and positive for pleural invasion (all factors P < .05). This pattern of staining was also an independent prognostic factor. Furthermore, we analyzed S100A16 mRNA expression using TCGA and Kaplan-Meier plotter databases, and found that higher S100A16 mRNA expression in AC was significantly correlated with poorer survival. To our knowledge, there has been no comprehensive study focused on both S100A16 protein and mRNA expression levels in AC patients. Our results suggest that the subcellular localization of S100A16 and S100A16 mRNA expression levels is a promising prognostic marker for AC. PMID- 29320754 TI - Characteristics of cribriform morular variant of papillary thyroid carcinoma in post-Chernobyl affected region. AB - The aim is to study the characteristics of cribriform morular variant of papillary thyroid carcinoma (CMV-PTC) in patients living in the radiation affected area of Belarus. The clinical and pathological features of 35 patients with CMV-PTC from Belarus were studied and compared with those of conventional papillary thyroid carcinoma diagnosed in the same period. The patients with CMV PTC were all females and were younger at presentation (mean age = 24) than those with conventional papillary thyroid carcinoma. Familial adenomatous polyposis (FAP) was identified in 20% of the patients with CMV-PTC. The majority of the CMV PTCs (29/35; 83%) were staged as pT1 and were less advanced than conventional papillary thyroid carcinoma. There was no evidence of lymph node metastases or distant metastases. CMV-PTCs were positive for beta-catenin, APC (adenomatous polyposis coli) and p53 proteins. No psammoma bodies were identified on microscopic examination. Over a median follow-up of 9 years, all the patients were alive, and there was no cancer recurrence or mortality related to the thyroid cancer. To conclude, CMV-PTC in patients in the radiation-affected region behaves in an indolent fashion. They had distinctive features that are different from patients with conventional papillary thyroid carcinoma living in the same region. PMID- 29320755 TI - Downregulated SASH1 expression indicates poor clinical prognosis in gastric cancer. AB - SASH1 (SAM- and SH3-domain containing 1), a novel candidate tumor suppressor, has attracted attention due to its role in intracellular signal transduction and its tumor prognostic value in diverse cancers. Reports have demonstrated that reduced SASH1 expression correlates with tumor proliferation, invasion, and metastasis. However, the expression and prognostic significance of SASH1 in gastric cancer (GC) remain unclear. In this study, 8 paired fresh-frozen GC tissues and corresponding gastric mucosal tissues were examined by Western blot to analyze the protein expression of SASH1. Seven hundred twenty-six formalin-fixed, paraffin-embedded (FFPE) gastric tissue samples were evaluated by immunohistochemical (IHC) to determine the correlations of SASH1 expression with clinicopathological factors and prognosis. Compared with adjacent noncancerous tissues, SASH1 was significantly downregulated in GC specimens. Analysis using the chi2 test revealed that low SASH1 expression was significantly associated with advanced TNM stage (P < .001) in GC. Cox regression multivariable analyses demonstrated that SASH1 expression (P < .001), TNM stage (P < .001), preoperative CEA level (P = .003) and preoperative CA19-9 level (P = .002) were independent prognostic factors. Our clinical findings suggest that downregulated SASH1 expression could be used as an independent biomarker for poor prognosis in GC. PMID- 29320756 TI - Generation of an induced pluripotent stem cell line from an adult male with 45,X/46,XY mosaicism. AB - Turner syndrome (TS) with 45,X/46,XY mosaic karyotype is a rare sex chromosome disorder with an occurrence of 0.150/00 at birth. We report the generation of an induced pluripotent stem cell (iPSC) line from peripheral blood mononuclear cells of a Chinese adult male with 45,X/46,XY mosaicism. The iPSC line retains the original 45,X/46,XY mosaic karyotype, expresses pluripotency markers and undergoes trilineage differentiation. Therefore, it offers an unprecedented cellular model to investigate the profound symptoms like infertility of TS in the male, and serve as a useful tool to develop therapies for the disease. PMID- 29320757 TI - Expression of hNeuritin protein in a baculovirus expression system and the analysis of its activity. AB - Neuritin plays an important role in the development and regeneration of the nervous system, and shows good prospects in the treatment and protection of the nervous system. To characterize neuritin function, we constructed a baculovirus expression system of neuritin, and identified the biological activity of the neuritin protein. The results and showed that the expression product could promote the neurite growth of dorsal root ganglion in chicken embryos. The neuritin open reading frame was amplified and cloned into the plasmid pFastBacTMHTA. The pFastBacTMHTA-neuritin was confirmed to be correct by PCR and DNA sequencing, and then transformed into Escherichia coli DH10Bac. The high purity recombinant Bacmid-neuritin (shuttle vectors) was obtained from DH10Bac through screening and identification. Recombinant virus, including the neuritin gene (virus-neuritin), was produced by transfection of SF9 cells using the bacmid neuritin, and then amplified repeatedly to express the neuritin fusion protein. Finally, we identified the fusion protein with SDS-PAGE and western blotting, and optimized the best expression time of the neuritin fusion protein. We also analyzed the activity of the expressed protein by dorsal root ganglion from chicken embryos. PMID- 29320758 TI - Polymerase epsilon mutations and concomitant beta2-microglobulin mutations in cancer. AB - Mutations in the exonuclease domain of polymerase epsilon (POLE), an enzyme of DNA synthesis, are involved in a newly described syndrome of colorectal polyposis and cancer, and have been associated with a high mutation burden with or without microsatellite instability (MSI) phenotype. The exonuclease domain of POLE executes a proofreading function that decreases the mutation rate during DNA replication by an estimated of one to two orders. The high mutation burden resulting from its loss of function could create a load of neo-antigens that would put the neoplastic cells in severe disadvantage of an immune attack if properly presented to the immune system. This paper investigates the mutagenic effect of different POLE mutations in various cancers, in published genomic studies and the effect that these POLE mutations have in selecting for mutations of the beta2 microglobulin (B2M) gene involved in antigen presentation. PMID- 29320759 TI - Identification of key microRNAs affecting drip loss in porcine longissimus dorsi by RNA-Seq. AB - MicroRNAs (miRNAs) are a class of ~22-nt non-coding small RNA that play an important role in various metabolic processes, mainly through suppressing the expression of protein coding genes at post-transcriptional level. Drip loss (DL) is one of the most important meat quality traits affecting the end product yield and quality of pork. To date, the underlying regulatory factors involved in DL trait are still incompletely understood. In the present study, we constructed two small RNA libraries with longissimus dorsi muscles from the higher DL (WJJ-H group) and the lower DL (WJJ-L group) individuals, and applied RNA-Seq technology to identify the differentially expressed miRNAs between the two extreme phenotypes of DL groups. A total of 184 and 176 porcine known miRNAs were detected from WJJ-H and WJJ-L groups, respectively. Moreover, 73 differentially expressed miRNAs were identified between two groups, of which 40 were up regulated and 33 were down-regulated. In addition, 133 and 140 novel potential miRNAs were predicted from WJJ-H and WJJ-L groups, respectively. Notably, we preliminary confirmed that both miRNA-499 and miRNA-22 were potential candidates influencing DL trait by their expression pattern analysis. Overall, our data enhance the knowledge of porcine skeletal muscle miRNAs, and provide foundation for clarifying the miRNA regulatory mechanisms involved in DL trait. PMID- 29320760 TI - A Standard Nomenclature for Referencing and Authentication of Pluripotent Stem Cells. AB - Unambiguous cell line authentication is essential to avoid loss of association between data and cells. The risk for loss of references increases with the rapidity that new human pluripotent stem cell (hPSC) lines are generated, exchanged, and implemented. Ideally, a single name should be used as a generally applied reference for each cell line to access and unify cell-related information across publications, cell banks, cell registries, and databases and to ensure scientific reproducibility. We discuss the needs and requirements for such a unique identifier and implement a standard nomenclature for hPSCs, which can be automatically generated and registered by the human pluripotent stem cell registry (hPSCreg). To avoid ambiguities in PSC-line referencing, we strongly urge publishers to demand registration and use of the standard name when publishing research based on hPSC lines. PMID- 29320761 TI - Expandable Arterial Endothelial Precursors from Human CD34+ Cells Differ in Their Proclivity to Undergo an Endothelial-to-Mesenchymal Transition. AB - Arterial diseases continue to pose a major health concern but in vitro studies are limited because explanted cells can exhibit poor proliferative capacity and a loss of specificity. Here, we find that two transcription factors, MYCN and SOX17, induce and indefinitely expand in culture precursors of human arterial endothelial cells (expandable arterial endothelial precursors [eAEPs]). The eAEPs are derived from CD34+ cells found in umbilical cord blood or adult bone marrow. Independent eAEP lines differ in their proclivity to undergo an endothelial-to mesenchymal transition (EndoMT), a hallmark event in a broad array of vascular diseases and disorders. Some cell lines spontaneously become mesenchymal over time in culture, an effect exacerbated by inhibition of the fibroblast growth factor receptor, while others do not readily convert. These distinctions were exploited to identify genes that correlate with resistance to an EndoMT and to elucidate transcriptional changes that underpin the transition. PMID- 29320763 TI - A de novo 50-bp GNAS Intragenic Duplication in a Patient with Pseudohypoparathyroidism Type 1a. AB - Germline intragenic mutations in the GNAS locus result in pseudohypoparathyroidism type 1a (PHP1a) and related conditions. Nearly half of the previously reported GNAS intragenic mutations were structural variants, including 3 tandem duplications of 12-25 bp. However, the precise mutation spectrum and the genomic basis of GNAS structural variants remain to be clarified. Here, we report a de novo 50-bp tandem duplication in GNAS (c.723_772dup50, p.Glu259Leufs*29) identified in a patient with typical clinical features of PHP1a. The mutant transcript was predicted to undergo mRNA decay or encode a nonfunctional protein. The 2 breakpoints of the duplication shared a 1 bp microhomology but were not associated with long homology or nucleotide stretches. We also examined the breakpoint structures of 3 previously reported GNAS duplications and found that 1 had a structure similar to that of our case, while the remaining 2 had blunt-ended breakpoints without microhomologies. In silico analyses revealed that the GNAS-flanking region was not enriched with repeats, palindromes, noncanonical DNA motifs, or GC content. This study expands the mutation spectrum of GNAS and provides the first indication that GNAS intragenic structural variants are induced by multiple processes, including nonhomologous end-joining and/or microhomology-mediated break-induced replication, independently of known rearrangement-inducing DNA features. PMID- 29320762 TI - Corrected and Republished from: Identification of Peptidoglycan Hydrolase Constructs with Synergistic Staphylolytic Activity in Cow's Milk. AB - Peptidoglycan hydrolases (PGHs) have been suggested as novel therapeutics for the treatment of bovine mastitis. However, activity in the presence of cow's milk is an important requirement for drugs administered into the bovine udder. We have used a microtiter plate-based protocol to screen a library of >170 recombinant PGHs, including engineered bacteriophage endolysins, for enzymes with activity against Staphylococcus aureus in milk. Eight suitable PGH constructs were identified by this approach, and their efficacies against S. aureus in heat treated milk were compared by time-kill assays. The two most active enzymes (lysostaphin and CHAPK_CWT-LST) reduced S. aureus numbers in milk to undetectable levels within minutes at nanomolar concentrations. Due to their different peptidoglycan cleavage sites, these PGH constructs revealed synergistic activity, as demonstrated by checkerboard assays, spot assays, and time-kill experiments. Furthermore, they proved active against a selection of staphylococcal mastitis isolates from different geographical regions when applied individually or in synergistic combination. The PGH combination completely eradicated S. aureus from milk: no more bacteria were detected within 24 h after the addition of the enzymes, corresponding to a reduction of >9 log units from the level in the control. Efficacy was also retained at different inoculum levels (3 log versus 6 log CFU/ml) and when S. aureus was grown in milk as opposed to broth prior to the experiments. In raw cow's milk, CHAPK_CWT-LST showed reduced efficacy, whereas lysostaphin retained its activity, reducing bacterial numbers by >3.5 log units within 3 h.IMPORTANCE Staphylococci, and S. aureus in particular, are a major cause of bovine mastitis, an inflammation of the mammary gland in cows that is associated with high costs and risks for consumers of milk products. S. aureus induced mastitis, commonly treated by intramammary infusion of antibiotics, is characterized by low cure rates and increasing antibiotic resistance in bacteria. Therefore, alternative treatment options are highly desirable. PGHs, including bacteriophage endolysins, rapidly and specifically kill selected pathogens by degrading their cell walls and are refractory to resistance development; thus, they have promise as novel antibacterial agents. This study employed a screening approach to identify PGH constructs with high staphylolytic activity in cow's milk among a large collection of enzymes. Our results suggest that the most promising enzymes identified by this strategy hold potential as novel mastitis therapeutics and thus support their further characterization in animal models. PMID- 29320764 TI - Usefulness of Mean Corpuscular Volume for Detection of Advanced Colorectal Cancer in Patients Older than 85 Years. AB - BACKGROUND/AIMS: The aim of this study was to elucidate clinical indicators for the detection of advanced colorectal cancer (ACRC). METHODS: This was a retrospective study conducted at a tertiary hospital. This study included 333 patients older than 85 years who underwent colonoscopy from April 2006 to May 2010. The detection rate of ACRC was assessed. Then, we analyzed the association between the detection of ACRC and various background factors including mean corpuscular volume (MCV). We also analyzed the cumulative overall survival of patients with detected ACRC. RESULTS: ACRC was found in 37 patients, resulting in a detection rate of 15%. Multivariate logistic regression analysis revealed that a decreased MCV was an independent predictor for the detection of ACRC (OR 0.88, 95% CI 0.84-0.94), whereas symptoms such as abdominal pain, hematochezia, or anemia were not independent predictors. MCV was an independent predictor irrespective of the location of the tumor. The cumulative survival rates at 3 and 5 years after diagnosis were 78 and 58%, respectively, during a median observational period of 30.3 months. CONCLUSION: This study demonstrated the usefulness of MCV as an indicator of the necessity of colonoscopy for older patients. PMID- 29320765 TI - Emerging Treatment Options in Atopic Dermatitis: Systemic Therapies. AB - The pathogenesis of atopic dermatitis (AD) is multifactorial and intricate, and the clinical presentation of the condition varies greatly. Symptoms and severity depend on individual trigger factors and stage of the disease. The majority of AD patients are sufficiently treated with emollients in combination with existing topical or systemic therapies. Yet treatment failure with existing drugs and treatment options can be a significant clinical problem. New treatments are under development, and the majority of these new drugs focus on targeting a skewed immune response in AD. Novel therapeutic approaches, which target the pathways involved in the pathogenesis of AD, may provide a potentially more effective and less harmful approach to systemic therapy. These pharmaceutical agents are designed to narrowly modify or directly block a specific cellular signal or pro inflammatory pathway. We review systemic drugs in the pipeline for AD. To make the review as current and pertinent as possible, we selected to focus on AD related therapies available in the clinicaltrials.gov database with a first received date after January 1, 2014, up until May 31, 2017. We excluded therapies that could be categorized as either traditional Chinese medicine, herbal medicine, probiotics, histamine/leukotriene blockers, immuno-adsorption, or immunostimulants. PMID- 29320767 TI - Ecological Approaches to Dental Caries Prevention: Paradigm Shift or Shibboleth? AB - Contemporary paradigms of dental caries aetiology focus on the ecology of the dental plaque biofilm and how local environmental factors can modulate this to cause disease. The crucial role that a healthy oral microbiome plays in preventing caries and promoting oral health is also being increasingly recognized. Based on these concepts, several ecological preventive approaches have been developed that could potentially broaden the arsenal of currently available caries-preventive measures. Many of these ecological approaches aim for long-term caries control by either disrupting cariogenic virulence factors without affecting bacterial viability, or include measures that can enhance the growth of health-associated, microbially diverse communities in the oral microbiome. This paper argues for the need to develop ecological preventive measures that go beyond conventional caries-preventive methods, and discusses whether these ecological approaches can be effective in reducing the severity of caries by promoting stable, health-associated oral biofilm communities. PMID- 29320766 TI - Improved Visibility of Barrett's Esophagus with Linked Color Imaging: Inter- and Intra-Rater Reliability and Quantitative Analysis. AB - BACKGROUND/AIMS: To evaluate the usefulness of linked color imaging (LCI) and blue LASER imaging (BLI) in Barrett's esophagus (BE) compared with white light imaging (WLI). METHODS: Five expert and trainee endoscopists compared WLI, LCI, and BLI images obtained from 63 patients with short-segment BE. Physicians assessed visibility as follows: 5 (improved), 4 (somewhat improved), 3 (equivalent), 2 (somewhat decreased), and one (decreased). Scores were evaluated to assess visibility. The inter- and intra-rater reliability (intra-class correlation coefficient) of image assessments were also evaluated. Images were objectively evaluated based on L* a* b* color values and color differences (DeltaE*) in a CIELAB color space system. RESULTS: Improved visibility compared with WLI was achieved for LCI: 44.4%, BLI: 0% for all endoscopists; LCI: 55.6%, BLI: 1.6% for trainees; and LCI: 47.6%, BLI: 0% for experts. The visibility score of trainees compared with experts was significantly higher for LCI (p = 0.02). Intra- and inter-rater reliability ratings for LCI compared with WLI were "moderate" for trainees, and "moderate-substantial" for experts. The DeltaE* revealed statistically significant differences between WLI and LCI. CONCLUSION: LCI improved the visibility of short-segment BE compared with WLI, especially for trainees, when evaluated both subjectively and objectively. PMID- 29320768 TI - Attention Deficit Hyperactivity Disorder Symptoms are Common in Patients in Opioid Maintenance Treatment. AB - INTRODUCTION AND AIMS: Knowledge of attention deficit hyperactivity disorder (ADHD) symptoms among patients in opioid maintenance treatment (OMT) is important for treatment optimization and yet limited. We investigated the prevalence of ADHD symptoms, and factors associated with high ADHD symptom burden in a group of Norwegian OMT patients. METHODS: We interviewed individuals entering OMT across Norway in 2 steps between 2012 and 2016. ADHD symptoms were measured by the Adult ADHD Self-Report Scale (ASRS; n = 175). We compared 2 groups of individuals who scored above or below the clinical cutoff score. Mental distress was measured with the General Symptom Index (GSI) of the Hopkin's Symptom Check-List-25. RESULTS: A total of 33% of the OMT patients screened positively for ADHD on the ASRS. Participants who scored above the clinical cutoff were younger, and reported more severe substance use and mental distress. When controlling for other significant variables in a logistic regression analysis, scoring above cutoff on the ASRS was associated with higher GSI (OR 1.61; 95% CI 1.03-2.50) and use of stimulants (OR 2.55; 1.13-5.76). CONCLUSIONS: ADHD symptoms were common in these OMT patients. High ADHD symptom burden was associated with higher mental distress and use of stimulants. This underlines a need of more systematic focus on ADHD in OMT to plan treatment accordingly. PMID- 29320769 TI - Electronic Nose in the Detection of Wound Infection Bacteria from Bacterial Cultures: A Proof-of-Principle Study. AB - BACKGROUND: Soft tissue infections, including postoperative wound infections, result in a significant burden for modern society. Rapid diagnosis of wound infections is based on bacterial stains, cultures, and polymerase chain reaction assays, and the results are available earliest after several hours, but more often not until days after. Therefore, antibiotic treatment is often administered empirically without a specific diagnosis. METHODS: We employed our electronic nose (eNose) system for this proof-of-concept study, aiming to differentiate the most relevant bacteria causing wound infections utilizing a set of clinical bacterial cultures on identical blood culture dishes, and established bacterial lines from the gaseous headspace. RESULTS: Our eNose system was capable of differentiating both methicillin-sensitive Staphylococcus aureus (MSSA) and methicillin-resistant Staphylococcus aureus (MRSA), Streptococcus pyogenes, Escherichia coli, Pseudomonas aeruginosa, and Clostridium perfringens with an accuracy of 78% within minutes without prior sample preparation. Most importantly, the system was capable of differentiating MRSA from MSSA with a sensitivity of 83%, a specificity of 100%, and an overall accuracy of 91%. CONCLUSIONS: Our results support the concept of rapid detection of the most relevant bacteria causing wound infections and ultimately differentiating MRSA from MSSA utilizing gaseous headspace sampling with an eNose. PMID- 29320770 TI - Long-Term Survivor Characteristics in Hemodialysis Patients with Type 2 Diabetes. AB - BACKGROUND: Data concerning long-term mortality predictors among large, purely diabetic hemodialysis collectives are scarce. METHODS: We used data from a multicenter, prospective, randomized trial among 1,255 hemodialysis patients with type 2 diabetes mellitus (T2DM) and its observational follow-up study. The association of 10 baseline candidate variables with mortality was assessed by Cox proportional hazards regression. RESULTS: Overall, 103 participants survived the median follow-up of 11.5 years. Significant predictors of mortality were age (hazard ratio [HR] 1.03, 95% CI 1.02-1.04), cardiovascular (HR 1.42, 95% CI 1.25 1.62) and peripheral vascular disease (HR 1.55, 95% CI 1.36-1.76), higher hemoglobin A1c (HbA1c; HR 1.08, 95% CI 1.03-1.14), and loss of self-dependency (HR 1.20, 95% CI 1.03-1.39). Higher albumin (HR 0.72, 95% CI 0.59-0.89) and body mass index (BMI; HR 0.98, 95% CI 0.96-0.99) had protective associations. There was no significant association with sex, diabetes duration, and cerebrovascular diseases. Subgroup analyses by age and diabetes duration showed stronger associations of cardiovascular disease, HbA1c, albumin, BMI, and loss of self dependency in younger patients and/or shorter diabetes duration. Loss of self dependency and energy resources (albumin, BMI) increased mortality more severely in women, whilst the impact of cardiovascular and peripheral vascular diseases was more pronounced in men. CONCLUSION: Long-term mortality risk in patients with T2DM on hemodialysis was associated with higher age, vascular diseases, HbA1c, loss of self-dependency, and low energy resources. Interestingly, it does not vary between sexes. Further individualized prognosis estimation and therapy should strongly depend on age, diabetes duration, and gender. PMID- 29320771 TI - Perianal Infections in the Phase before Engraftment after Allogeneic Hematopoietic Stem Cell Transplantations: A Study of the Incidence, Risk Factors, and Clinical Outcomes. AB - In this study, we aimed to investigate the incidence, risk factors, and clinical outcomes of perianal infections during the pre-engraftment phase after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Consecutive patients who underwent non-T-cell-depleted allo-HSCT at the Peking University Institute of Hematology from January 1 to December 31, 2016 were enrolled (n = 646). Ninety nine patients were found to have perianal infections during the pre-engraftment phase, and 80 were found to have neutropenia on perianal infection diagnosis. The cumulative incidence of perianal infection during the pre-engraftment phase after allo-HSCT was 15.3%. A history of perianal infection (hazard ratio [HR] = 15.28, p < 0.001) or hemorrhoids before allo-HSCT (HR = 3.09, p = 0.001) was significantly associated with the new occurrence of perianal infection after allo HSCT. All patients received empirical broad-spectrum antimicrobial therapies, and 97 were cured after treatment. The clinical outcomes at 100 days after allo-HSCT were comparable in patients with and without perianal infections. In summary, patients who had perianal infection or hemorrhoids before allo-HSCT had a higher risk of new occurrence of perianal infection after allo-HSCT. With appropriate treatment, perianal infection during the pre-engraftment phase did not influence the clinical outcomes. PMID- 29320772 TI - A Perfect sTORm: The Role of the Mammalian Target of Rapamycin (mTOR) in Cerebrovascular Dysfunction of Alzheimer's Disease: A Mini-Review. AB - Cerebrovascular dysfunction is detected prior to the onset of cognitive and histopathological changes in Alzheimer's disease (AD). Increasing evidence indicates a critical role of cerebrovascular dysfunction in the initiation and progression of AD. Recent studies identified the mechanistic/mammalian target of rapamycin (mTOR) as a critical effector of cerebrovascular dysfunction in AD. mTOR has a key role in the regulation of metabolism, but some mTOR-dependent mechanisms are uniquely specific to the regulation of cerebrovascular function. These include the regulation of cerebral blood flow, blood-brain barrier integrity and maintenance, neurovascular coupling, and cerebrovascular reactivity. This article examines the available evidence for a role of mTOR driven cerebrovascular dysfunction in the pathogenesis of AD and of vascular cognitive impairment and dementia (VCID) and highlights the therapeutic potential of targeting mTOR and/or specific downstream effectors for vasculoprotection in AD, VCID, and other age-associated neurological diseases with cerebrovascular etiology. PMID- 29320773 TI - Association between Antioxidant Enzyme Activities and Enterovirus-Infected Type 1 Diabetic Children. AB - OBJECTIVE: To examine the effect of infection with Enterovirus (EV) in children with type 1 diabetes (T1D) on the activities of serum antioxidant enzymes in diabetic and nondiabetic controls. SUBJECTS AND METHODS: Three hundred and eighty two diabetic and 100 nondiabetic children were tested for EV RNA using reverse transcriptase (RT)-PCR. The activities of serum superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) were also estimated in diabetic patients infected with EV (T1D-EV+), those not infected with EV (T1D-EV-), and in nondiabetic controls. RESULTS: The frequency of EV was higher in diabetic children (100/382; 26.2%) than in healthy controls (0/100). Levels of fasting blood glucose (FBG), glycosylated hemoglobin (HbA1c) and C-reactive protein (CRP) were significantly higher but C-peptide was significantly lower in diabetic children than in controls. CRP levels were higher in the T1D-EV+ group than in the T1D-EV- group, and higher in all diabetic children than in nondiabetic controls. The activities of the antioxidant enzymes GPx, SOD, and CAT decreased significantly in diabetic children compared to in controls. Moreover, the activities of the enzymes tested were significantly reduced in the T1D-EV+ group compared to in the T1D-EV- group. CONCLUSION: Our data indicate that EV infection correlated with a decrease in the activity of antioxidant enzymes in the T1D-EV+ group compared to in the T1D-EV- group; this may contribute to beta cell damage and increased inflammation. PMID- 29320774 TI - How Many Passes Are Needed for Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration for Sarcoidosis? A Prospective Multicenter Study. AB - BACKGROUND: While endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is widely used as an initial diagnostic procedure for pathological confirmation of sarcoidosis, it is unclear how many passes are required to obtain diagnostic materials. OBJECTIVES: The aim of this study was to determine the number of needle passes needed for the diagnosis of stage I/II sarcoidosis using EBUS-TBNA. METHODS: At three institutions, 109 patients with suspected stage I/II sarcoidosis were recruited and underwent 6 passes of EBUS TBNA for the main target lesion. Additional EBUS-TBNA for other lesions was permitted. The cumulative yields of needle passes for detecting noncaseating epithelioid cell granulomas were analyzed. RESULTS: A total of 109 patients underwent EBUS-TBNA for 184 lesions. EBUS-TBNA identified specimens containing granulomas in 81 of 92 patients (88%) with a final diagnosis of sarcoidosis. The cumulative yields through the first, second, third, fourth, fifth, and sixth passes for the main target lesion were 63, 75, 82, 85, 86 and 88%, respectively. In the 55 patients that underwent EBUS-TBNA for multiple lesions, the cumulative yields of 2 passes per lesion for 2 lesions (total of 4 passes) and of 4 passes for single lesions were 86 and 84%, respectively (p = 1.00). CONCLUSIONS: If rapid on-site cytological evaluation is not available, we recommend at least 4 passes per patient for either single or multiple lesions with EBUS-TBNA for pathological diagnosis of stage I/II sarcoidosis. PMID- 29320775 TI - Cholestatic Jaundice as a Paraneoplastic Manifestation of Prostate Cancer Aggravated by Steroid Therapy. AB - OBJECTIVE: To report a rare case of paraneoplastic jaundice as a manifestation of prostate cancer. CLINICAL PRESENTATION AND INTERVENTION: We report on a case of paraneoplastic syndrome in a 72-year-old man with prostate cancer that manifested with idiopathic jaundice. Although steroids can be used as treatment in patients with prostate cancer, they could exacerbate paraneoplastic jaundice. The jaundice that flared up after treatment with 40 mg prednisone was improved with antiandrogen treatment. CONCLUSION: Physicians should be aware of the possibility of paraneoplastic jaundice in patients with prostate cancer. Appropriate antiandrogen therapy should be considered for paraneoplastic jaundice in these patients. PMID- 29320776 TI - V600E BRAF versus Non-V600E BRAF Mutated Lung Adenocarcinomas: Cytomorphology, Histology, Coexistence of Other Driver Mutations and Patient Characteristics. AB - OBJECTIVES: We analyzed the morphologic features and clinical characteristics of lung adenocarcinomas (ACAs) harboring mutated BRAF. STUDY DESIGN: A review of the histology/cytology of BRAF-mutated lung ACAs was performed at the Johns Hopkins Hospital from January 1, 2013, to January 1, 2015. Patient demographics, clinical history, and ACA morphology were assessed. RESULTS: Thirty-six cases were identified with a median age of 66 years (range 44-87), 58% (21/36) were female, and 94% (34/36) were current or former smokers. In total, 28% (10/36) had a BRAF V600E mutation. Concurrent mutations were identified in KRAS in 4 cases (11%), PIK3CA in 2 cases (6%), and AKT1 in 2 cases (6%). No cases tested for ALK rearrangement were positive. The tumor grading varied from well to poorly differentiated, and the architecture assumed various patterns, including papillary, micropapillary, solid/cribriform, lepidic, and acinar. Of the cases with immunostains, 90% (18/20) were TTF-1 positive, 88% (14/16) were napsin-A positive, and 100% (8/8) were P63 negative. CONCLUSION: Mutated-BRAF lung ACA arose on average in the seventh decade of life in patients who were current or former smokers and was infrequently found in combination with other common lung ACA driver mutations. The actionable V600E mutation was present in <30% of cases, more commonly in females. The histologic grade and architecture of these tumors varied significantly. PMID- 29320777 TI - A Case of Giant Supratentorial Choroid Plexus Carcinoma in a Young Girl. PMID- 29320778 TI - Five-Year Recurrence Rate and the Predictors Following Stroke in the Mashhad Stroke Incidence Study: A Population-Based Cohort Study of Stroke in the Middle East. AB - BACKGROUND: Little is known about the risk of recurrent stroke in low- and middle income countries. This study was designed to identify the long-term risk of stroke recurrence and its associated factors. METHODS: From November 21, 2006 for a period of 1 year, 624 patients with first-ever stroke (FES) were registered from the residents of 3 neighborhoods in Mashhad, Iran. Patients were followed up for the next 5 years after the index event for any stroke recurrence or death. We used competing risk analysis and cause-specific Cox proportional hazard models to estimate the cumulative incidence of stroke recurrence and its associated variables. RESULTS: The cumulative incidence of stroke recurrence was 14.5% by the end of 5 years, with the largest rate during the first year after FES (5.6%). Only advanced age (adjusted hazard ratio [HR] 1.02; 95% CI 1.01-1.04) and severe stroke (National Institutes of Health Stroke Scale score >20; HR 2.23; 95% CI 1.05-4.74) were independently associated with an increased risk of 5-year recurrence. Case fatality at 30 days after first recurrent stroke was 43.2%, which was significantly greater than the case fatality at 30 days after FES of 24.7% (p = 0.001). CONCLUSION: A substantial number of our patients either died or had stroke recurrences during the study period. Advanced age and the severity of the index stroke significantly increased the risk of recurrence. This is an important finding for health policy makers and for designing preventive strategies in people surviving their stroke. PMID- 29320779 TI - Prognostic Factors for Survival among Patients with Small Bowel Neuroendocrine Tumours Associated with Mesenteric Desmoplasia. AB - BACKGROUND: Small intestinal neuroendocrine tumours (SI NETs) represent 30-50% of small bowel neoplasms and are often associated with diverse fibrotic complications. Mesenteric fibrosis is a hallmark of SI NETs which may cause substantial morbidity and is considered an adverse feature. However, survival analyses in this group of patients are lacking. METHODS: The aim of this retrospective study was to determine the overall survival (OS) and factors affecting prognosis in a large cohort of 147 patients with SI NETs and radiological evidence of mesenteric desmoplasia from our centre. The severity of desmoplasia was graded radiologically and its effect on OS and long-term complications was assessed. The median follow-up period was 82 months. RESULTS: The median OS was 8.7 years (95% CI 6.8-9.9) with an overall 5-year survival of 71%. The univariate analysis demonstrated that an age >65 years, a liver tumour burden >50% of the hepatic parenchyma, carcinoid heart disease, chromogranin A levels >10 times the upper limit of normal, and urinary 5-hydroxyindoleacetic acid (5-HIAA) levels >5 times the upper limit of normal were poor prognosticators, while primary resection was associated with a longer OS. However, only an age >65 years and urinary 5-HIAA levels >10 times the upper limit of normal remained statistically significant after multivariate analysis. The severity of mesenteric desmoplasia did not seem to demonstrate a statistically significant relationship to OS or long-term outcomes. CONCLUSION: This study is the first comprehensive survival analysis of patients with SI NETs associated with mesenteric desmoplasia and has provided important and clinically relevant epidemiological data for this group of patients. PMID- 29320780 TI - The Evolution of Neuroendocrine Tumor Treatment Reflected by ENETS Guidelines. AB - In 2016, the third version of guidelines for the diagnosis and treatment of neuroendocrine tumors (NETs) has been published by the European Neuroendocrine Tumor Society (ENETS). These guidelines reflect the progress in treatment of NETs, and by comparing the newest guidelines with the first guidelines of 2001, this progress can be clearly recognized. Diagnostic accuracy has been increased by the introduction of PET-CT with Ga-labelled somatostatin analogs, and multiple new treatments and treatment schedules have been developed, like peptide receptor radiotherapy with radiolabeled somatostatin analogs, or targeted therapies. Evidence and indications for these therapies are discussed in the ENETS guidelines. In this review, we aim to show the progress in NET diagnosis and treatment on the basis of the advances in the guidelines, but also to discuss the unsolved questions and unmet needs which still remain. PMID- 29320781 TI - The Draft Genome Assembly of Dermatophagoides pteronyssinus Supports Identification of Novel Allergen Isoforms in Dermatophagoides Species. PMID- 29320782 TI - Thyroid Hormone Status in Overweight Children with Attention Deficit/Hyperactivity Disorder. AB - BACKGROUND: There is an ongoing discussion whether thyroid hormones are involved in the development and course of attention deficit/hyperactivity disorder (ADHD). Since obesity is associated with both higher thyroid-stimulating hormone (TSH) and free triiodothyronine (fT3) concentrations and increased rates of ADHD, we hypothesized that overweight children with ADHD show higher TSH and fT3 concentrations compared to overweight children without ADHD. METHODS: TSH, fT3, fT4, and leptin levels were analyzed in 230 children (60.9% boys, 9.3 +/- 1.7 years old, 35.7% migration background). The children were divided into four groups (I = 26 overweight children with ADHD, II = 56 normal-weight children with ADHD, III = 66 overweight children without ADHD, and IV = 82 normal-weight children without ADHD). Severity of ADHD was determined by the parent version of the Connors 3(r) rating scales. RESULTS: Overweight children with ADHD did not differ significantly from overweight children without ADHD with respect to TSH, fT3, or fT4 concentrations. Comparing the thyroid hormones between the four groups also demonstrated no significant differences for TSH and fT4 concentrations. fT3 concentrations were significantly higher in normal-weight children with ADHD compared to normal-weight children without ADHD. Inattention and hyperactivity/impulsivity scores were not significantly related to TSH or fT3 in multiple regression analyses adjusted for age, gender, and migration background. In these analyses, TSH was associated with BMI SDS (beta coefficient 0.19 +/- 0.12, p = 0.002) and leptin (exp[beta coefficient] 1.87 +/- 1.36, p < 0.001). fT3 (beta coefficient 0.06 +/- 0.05, p = 0.009) and leptin (exp[beta coefficient] 1.17 +/- 1.13, p = 0.009) were also associated with BMI SDS. CONCLUSIONS: Our findings confirm the relation between overweight and thyroid hormones but point against the hypothesis that thyroid hormones might link overweight and ADHD in children. PMID- 29320784 TI - Going Fishing. PMID- 29320783 TI - WT1 Gene Mutation, p.R462W, in a 46,XY DSD Patient from Egypt with Gonadoblastoma and Review of the Literature. AB - WT1 gene mutations have been described in 46,XY patients with ambiguous genitalia or complete gonadal dysgenesis with or without Wilms' tumor, nephropathy, gonadoblastoma, and other defects, e.g., cryptorchidism or hypospadias. p.R462W is a hot spot mutation in exon 9 and is the most common mutation in patients with Denys-Drash syndrome. However, in this study we report an Egyptian patient with a novel phenotype carrying the p.R462W mutation. We also review the heterogeneity of phenotypes of previously reported patients with the p.R462W (previously referred to as Arg394Trp) mutation. PMID- 29320785 TI - [Neck swelling - a surprising diagnosis]. PMID- 29320786 TI - Imaging of Ligamentous Structures within the Knee Includes Much More Than the ACL. AB - Ligamentous structures of the knee are numerous and complex, including the anterior and posterior cruciate ligaments, medial and lateral collateral ligaments, ligaments of the posteromedial and posterolateral corners, and the anterolateral ligament. Clinical assessment after a knee injury is paramount and can direct both the clinician's choice of imaging study and the radiologist's interpretation. Imaging is crucial in that it provides additional information for diagnosis, management, and surgical planning. Multiple imaging modalities can be used in the evaluation of the knee injuries, with radiographs an important baseline study, magnetic resonance imaging as the best tool for a comprehensive assessment including cruciate ligament evaluation, and ultrasound useful in evaluating superficial structures. Knowledge of both normal and pathological appearances of ligamentous structures, as well as typical injury patterns, is useful not only for radiologists but also for clinicians who manage patients with knee pain. PMID- 29320787 TI - ? PMID- 29320788 TI - [Competence-based Training in the "Protected Environment": From Sheltered Space to Real Life]. AB - The idea of "learning in a protected environment" is frequently used within the framework of postgradual education in anaesthesiology. However it remains unclear and its exact meaning lies in the eye of the beholder. This paper aims to highlight the definition of the term "protected environment" and its relevance in anaesthesiology. This includes teaching and learning strategies like competence based training and simulation based training in all its variations. We conclude with an attempt to classify the wide variety of Simulators and teaching methods in use including their individual problems transferred into real life situations. Concerning the fact that this paper is supposed to be a review in medical education, its structure differs from case related papers with more medical content. PMID- 29320789 TI - [Simulation as a Training Method for the Professionalization of Teams]. AB - Simulation as an educational method can be applied to the training of processes, technical and non-technical skills. This article focuses on the role of simulation in crisis resource management and non-technical skills. A realistic work environment requires well-trained staff regarding simulation technology and communication. A training (unit) is divided into three sections. During the briefing the team is introduced to the scenario. Afterwards, the patient is treated by an interdisciplinary team. Communication under the pressure of action, even if one does not agree with the approach of the colleagues, should be practiced. After the scenario a structured debriefing is conducted. The trainer supervises the reflection of the teams' actions. Various methods such as "guided team self-correction", "advocacy-inquiry" and the "TeamGAINS"-approach are available for this decisive phase of the training. A safe environment is guaranteed, video recordings will never leave the training. Active experimentation, concrete experiences and accurate reflection are the key factors of success for the method simulation. Positive effects on critical incidents, resuscitation outcome and improvement of team climate can be observed after simulation training. PMID- 29320790 TI - ["Learning in Protected Environment"- Implementation in Continuing Medical Education]. AB - Actual concepts in continuing medical education in acute or emergency medicine contain skill training as well as simulation training. Methods and mechanisms to reduce crisis, like human factor training, shared mental models or closed-loop communication are incorporated. It is unknown which training method is optimal for individual departments in hospitals or for the individual level of education of the healthcare provider. A concept we provide is the so called "learning in protected environment": this environment protects the course participants and our patients from negative consequences of a conventional hands-on training. Concurrently the participants benefit from our standardized course concepts. We achieve our goal of an optimal preparation for clinical practice by continuous re evaluation of the content and educational objects. The implementation of a multimodal team training has to be adopted for each institution individually - methods for an implementation should be standardized. We suggest the use of the "Kern cycle" for a structured approach to curriculum development. On this foundation the combination of "learning in protected environment" and crisis training is optimal to achieve an improved patient safety in acute care. PMID- 29320791 TI - [What to Do When a Child Is Choking?] AB - Both ingestion and aspiration of foreign bodies are common events in children. If a child had something in his mouth and thereafter respiratory or swallowing complaints occur, both aspiration and ingestion are possible causes. Both events can be immediately life threatening or, if a direct threat is absent, cause significant long-term impairments for the children. Therefore, the identification of any possible threat is essential. This paper identifies the diagnostic and therapeutic options and needs that will ensure the best possible safety and the least possible consequential harm. PMID- 29320792 TI - [Advance Care Planning and its Relevance for Emergency and Intensive Care Medicine]. AB - Like in other countries, advance care planning (ACP) is currently being implemented in Germany as a new concept to realise valid and effective advance directives. This concept comprises processes to explore and document individual preferences for future treatment, and to honour them at a time when the person is incapacitated. ACP aims to ensure that patients will be treated according to their preferences when they are no longer capable due to acute health crises or chronic diseases. This paper gives an overview of the concept of ACP with a focus on relevant issues for emergency and intensive care medicine. PMID- 29320793 TI - ? PMID- 29320794 TI - Assessment of Plasma Sample Quality on Siemens Atellica COAG 360 System. PMID- 29320795 TI - Direct Oral Anticoagulants in End-Stage Renal Disease. AB - Patients with end-stage renal disease (ESRD) were excluded from pivotal clinical trials with oral anticoagulants. While such patients are at an increased risk of venous and arterial thromboembolism, their risk of bleeding is also elevated. It is thus of little surprise that stroke prevention with vitamin K antagonists (VKAs) in ESRD patients with atrial fibrillation is controversial, with observational evidence ranging from beneficial to harmful. This uncertainty extends to the less studied use of VKAs for venous thromboembolism in ESRD. The direct oral anticoagulants (DOACs) apixaban and rivaroxaban have now permissive labeling in the United States for atrial fibrillation in patients with ESRD; this expanded labeling has not yet occurred either in Europe or for venous thromboembolism. This review summarizes the current evidence for the pharmacology of DOACs in ESRD as well as their utilization and safety in patients with ESRD and atrial fibrillation. PMID- 29320796 TI - Prevalence and Risk Factors of Acute Pulmonary Embolism in Patients with Lung Cancer Surgery. AB - Acute pulmonary embolism (PE) is one of the serious complications with high mortality after thoracic surgery. The authors aimed to determine the prevalence of PE events and evaluate additional risk factors for PE in patients with lung cancer surgery. Patients underwent lung cancer resections during January 2012 to July 2015 and had 30-day postoperative follow-up were included. Those with incomplete or miscoded data were excluded. The number of postoperative PE events was recorded retrospectively. Analyses were used to evaluate risk factors of PE during the hospitalization. The authors reviewed 11,474 patients who underwent surgery for lung cancer. The overall 30-day incidence of PE after thoracic surgery at their institution was 0.53%. The 30-day PE incidence without chemical prophylaxis was 0.57% (55/9,726) and the mortality rate was 10%. Multivariate analyses revealed that age over 66 (odds ratio [OR]: 1.09, 95% confidence interval [CI]: 1.05-1.12, p < 0.001), more extensive surgery than lobectomy (OR: 2.34, 95% CI: 1.28-4.25, p = 0.006) and stage IV of lung cancer (OR: 4.22, 95% CI: 1.50-11.9, p = 0.007) were associated with an increased risk of PE. Using these additional risk factors, based on readily available clinical characteristics, can help to risk-stratify patients and warrant extended chemical prophylaxis for patients to reduce the incidence of acute PE. PMID- 29320798 TI - Incorrectly Performed Meaningful Use Audits Hurt Small Practices. PMID- 29320797 TI - Measuring Electronic Health Record Use in Primary Care: A Scoping Review. AB - BACKGROUND: Simple measures of electronic health record (EHR) adoption may be inadequate to evaluate EHR use; and positive outcomes associated with EHRs may be better gauged when varying degrees of EHR use are taken into account. In this article, we aim to assess the current state of the literature regarding measuring EHR use. OBJECTIVE: This article conducts a scoping review of the literature to identify and classify measures of primary care EHR use with a focus on the Canadian context. METHODS: We conducted a scoping review. Multiple citation databases were searched, as well as gray literature from relevant Web sites. Resulting abstracts were screened for inclusion. Included full texts were reviewed by two authors. Data from the articles were extracted; we synthesized the findings. Subsequently, we reviewed these results with seven EHR stakeholders in Canada. RESULTS: Thirty-seven articles were included. Eighteen measured EHR function use individually, while 19 incorporated an overall level of use. Eight frameworks for characterizing overall EHR use were identified. CONCLUSION: There is a need to create standardized frameworks for assessing EHR use. PMID- 29320799 TI - New Phenylethanoid Glycosides from Cistanche phelypaea and Their Activity as Inhibitors of Monoacylglycerol Lipase (MAGL). AB - Four new phenylethanoid glycosides (1: -4: ), 1-beta-p-hydroxyphenyl-ethyl-2-O acetyl-3,6-di-alpha-l-rhamnopyranosyl-beta-d-glucopyranoside (1: ), 1-beta-p hydroxyphenyl-ethyl-3,6-O-di-alpha-l-rhamnopyranosyl-beta-d-glucopyranoside (2: ), 1-beta-p-hydroxyphenyl-ethyl-2-O-acetyl-3,6-di-alpha-l-rhamnopyranosyl-4-p coumaroyl-beta-d-glucopyranoside (3: ), and 1-beta-p-hydroxyphenyl-ethyl-3,6-di alpha-l-rhamnopyranosyl-4-p-coumaroyl-beta-d-glucopyranoside (4: ), together with three known compounds, were isolated from the n-butanol extract of Cistanche phelypaea aerial parts. The structural characterization of all compounds was performed by spectroscopic analyses, including 1D and 2D NMR, and HRESIMS experiments. The isolated compounds were assayed for their inhibitory activity on two enzymes involved in the peculiar glycolytic or lipidic metabolism of cancer cells, human lactate dehydrogenase (LDH), and monoacylglycerol lipase (MAGL), respectively. All the compounds showed negligible activity on LDH, whereas some of them displayed a certain inhibition activity on MAGL. In particular, compound 1: was the most active on MAGL, showing an IC50 value of 88.0 uM, and modeling studies rationalized the supposed binding mode of 1: in the MAGL active site. PMID- 29320800 TI - Risks of Preterm Premature Rupture of Membranes and Preterm Birth Post Fetoscopy Based on Location of Trocar Insertion Site. AB - OBJECTIVE: The objective of this study was to assess whether the location of the trocar insertion site for laser treatment of twin-twin transfusion syndrome was associated with preterm-premature rupture of membranes (PPROM) and preterm birth (PTB). STUDY DESIGN: In this study trocar location was documented in the operating room. Lower uterine segment (LUS) location was defined as any insertion <10 cm vertically from the pubic symphysis. Lateral location was defined as >=5 cm horizontally from the midline. Patient characteristics were tested against three outcomes: PPROM <= 21 days postoperative, PTB < 28 weeks, and PTB < 32 weeks. For each outcome, multiple logistic models were fitted to examine the effect of trocar location, controlling for potential risk factors. RESULTS: A total of 743 patients were studied. Patients with LUS location were twice as likely as those with a more superior location to have PPROM <= 21 days (OR = 2.33, 1.12-4.83, p = 0.0236). Patients with both a LUS and Lateral location were over six times more likely to have PPROM <= 21 days (OR = 6.66, 2.36-18.78, p = 0.0003). Trocar insertion site was not associated with PTB. CONCLUSION: We found that trocar insertion in the LUS, particularly the lateral LUS, was associated with an increased risk of PPROM. PMID- 29320801 TI - Fatigue during Chest Compression Using a Neonatal Patient Simulator. AB - OBJECTIVE: The objective of this study was to evaluate chest compression (CC) quality and operator fatigue during CC, with coordinated ventilation, on a neonatal simulator and to explore its association with provider aerobic activity and body mass index. METHODS: This was a prospective observational experimental study on pediatricians, neonatologists, and neonatal nurses who frequently deliver newborns and who have signed the informed consent. Subjects performed CC coordinated with ventilations at a ratio of 3:1 for 10 minutes on a neonatal mannequin. Proxy of fatigue was defined as four consecutive CC below target. RESULTS: Forty subjects participated; 62% were women. Twenty one (52%) evidenced weariness, as they performed. No gender-based differences were found in weariness. No subject abandoned the procedure due to fatigue. Subjects who participated in aerobic exercise had a significantly better performance than those who did not participate. Early fatigue was significantly associated with higher BMI. The reduction in effectiveness occurred at a mean time of 7.7 minutes (range 3.5-9 minutes). CONCLUSION: CC performance quality decreased and fatigue was frequent before 10 minutes had elapsed on a neonatal simulator. Provider fatigue was associated with both lack of aerobic activity and BMI >= 25. Our findings support the need for guidelines requiring frequent rotation of CC providers during prolonged neonatal resuscitation. PMID- 29320802 TI - Effect of Maternal Body Mass Index and Amniotic Fluid Index on the Accuracy of Sonographic Estimation of Fetal Weight in Late Gestation. AB - OBJECTIVE: The objective of this study was to determine the effect, if any, of maternal body mass index (BMI) and amniotic fluid index (AFI) on the accuracy of sonographic estimated fetal weight (EFW) at 40 to 42 weeks' gestation. METHODS: This was a retrospective cohort study of singleton gestations with ultrasound performed at 40 to 42 weeks from 2010 to 2013. In this study, patients with documented BMI and sonographic EFW and AFI, concurrently, within 7 days of delivery were included. Chronic medical conditions and fetal anomalies were excluded from this study. The primary variable of interest was the rate of substantial error in EFW, defined as absolute percentage error (APE) >10%. RESULTS: A total of 1,000 pregnancies were included. Overall, the APE was 6.0 +/ 4.5% and the rate of substantial error was 17.4% (n = 174). There was no significant difference in APE or rate of substantial error between BMI groups. In the final multivariable logistic regression model, the rate of substantial error was increased in women with oligohydramnios (OR 1.79; 95% CI: 1.10-2.92). Furthermore, oligohydramnios was significantly more likely to overestimate EFW while polyhydramnios was more likely to underestimate EFW. Maternal BMI did not affect the accuracy of sonographic EFW. CONCLUSION: Sonographic EFW may be affected by extremes of AFI in the postdates period. Maternal BMI does not affect EFW accuracy at 40 to 42 weeks. PMID- 29320803 TI - Moving pulmonary rehabilitation forward in COPD: Stepping towards (home-based) action. PMID- 29320804 TI - Misidentification of genome assemblies in public databases: The case of Naumovozyma dairenensis and proposal of a protocol to correct misidentifications. AB - Online sequence databases such as NCBI GenBank serve as a tremendously useful platform for researchers to share and reuse published data. However, submission systems lack control for errors such as organism misidentification, which once entered in the database can be propagated and mislead downstream analyses. Here we present an illustrating case of misidentification of Candida albicans from a clinical sample as Naumovozyma dairenensis based on whole-genome shotgun data. Analyses of phylogenetic markers, read mapping and single nucleotide polymorphisms served to correct the identification. We propose that the routine use of such analyses could help to detect misidentifications arising from unsupervised analyses and correct them before they enter the databases. Finally, we discuss broader implications of such misidentifications and the difficulty of correcting them once they are in the records. PMID- 29320805 TI - Success rate of medical thoracoscopy and talc pleurodesis in malignant pleurisy: A single-centre experience. AB - BACKGROUND AND OBJECTIVE: Malignant pleurisy is associated with advanced oncological disease and dyspnoea is the most common presenting symptom. Pleurodesis is the preferred palliative and supportive treatment option, targeting symptom relief. The identification of clinical and endoscopic features that determine the success of talc pleurodesis in malignant pleurisy could guide clinical decision-making. METHODS: All symptomatic patients with malignant pleurisy subjected to talc pleurodesis through medical thoracoscopy between January 2012 and December 2015 were included. Univariate and multivariate analyses were performed to identify factors associated with successful pleurodesis. RESULTS: Of the 155 patients, 122 (78%) were classified as having a successful pleurodesis based on clinical and radiological criteria. Factors associated with unsuccessful pleurodesis (univariate analysis) were the presence of pleural adhesions (odds ratio (OR): 0.43 (95% CI: 0.19-0.96); P = 0.04), extensive spread of pleural lesions (OR: 0.17 (95% CI: 0.05-0.59); P = 0.001), the use of systemic corticosteroids (OR: 0.28 (95% CI: 0.10-0.83); P = 0.02) and a prolonged time period between the clinical diagnosis of the pleural effusion and the moment of pleurodesis (OR: 0.14 (95% CI: 0.06-0.32); P < 0.0001). The latter being associated with failure of pleurodesis in a multivariate analysis (OR: 0.08 (95% CI: 0.01-0.25); P < 0.0001). Chest ultrasound prior to pleurodesis showed a sensitivity of 91% and a specificity of 88% in predicting the success of pleurodesis. CONCLUSION: The success rate of pleurodesis in malignant pleurisy could potentially be enhanced by correct patient selection and early referral for pleurodesis. Ultrasonic assessment of pleural adhesions and potential lung expansion prior to pleurodesis is useful in clinical decision-making. PMID- 29320806 TI - Experiences of living kidney donors during the donation process. AB - BACKGROUND: The shortage of organs from deceased donors has led to more living donation. Furthermore, immunological developments have made it possible to perform kidney transplantation despite preformed antibodies against the donor organ. This has led to a broader recruitment base of living donors. OBJECTIVE: The objective was to investigate experiences and considerations on becoming, and during the process of being, a living kidney donor. MATERIALS AND METHODS: Interviews and participant observation were conducted before, during and after the donation. Data were analysed in accordance with Ricoeur's theory of interpretation on three levels: naive reading, structural analysis and critical interpretation and discussion. Eighteen potential donors over the age of 18 were included. RESULTS: Potential donors' decision to donate was based on a desire to help the recipient. At all stages of the process, donors experienced joy, dilemmas, vulnerability and hope. Rejected donors experienced frustration and disappointment. The accepted donors experienced both joy and vulnerability. Interaction between the donor and the recipient and the relatives played a significant role. The transition from being a healthy individual to being a surgical patient was an overwhelming experience. CONCLUSION: The process of donating a kidney and the return to everyday life involved significant experiences of joy, dilemmas, vulnerability and hope that influenced donors' lives on physical, psychological and social levels. Support and clear communication from the health professionals was essential. PMID- 29320807 TI - Overlap of interstitial pneumonia with autoimmune features with undifferentiated connective tissue disease and contribution of UIP to mortality. AB - BACKGROUND AND OBJECTIVE: Criteria for interstitial pneumonia with autoimmune features (IPAF) were recently established for research purposes in a joint statement from the European Respiratory Society (ERS) and American Thoracic Society (ATS). We reviewed the utility of these criteria in patients previously diagnosed as broadly defined undifferentiated connective tissue disease (UCTD) and noted overlapping IPAF findings. Additional review was given to IPAF patients with usual interstitial pneumonia (UIP) on histopathology or radiology in terms of survival and outcome. METHODS: Patients with prior UCTD-interstitial lung disease (ILD) were screened by ERS/ATS criteria for IPAF. Clinical data along with all-cause mortality were collated and compared with selected idiopathic pulmonary fibrosis (IPF) patients from the same study period. Survival was compared between IPAF subgroups with and without UIP features. RESULTS: One hundred and one UCTD-ILD subjects (91%) evaluated from 2005 to 2012 also met strict criteria for IPAF. Frequent clinical findings included Raynaud's phenomenon, positive anti-nuclear antibody (ANA) and non-specific interstitial pneumonia (NSIP) pattern on chest computed tomography (CT). Nineteen had features of UIP either on histopathology or CT imaging. As compared with IPF, IPAF patients had overall better survival except in those with UIP features. CONCLUSION: Current IPAF criteria encompassed the majority of broadly defined UCTD-ILD and included those with UIP findings. Survival compared with IPF in those with UIP was similar. Further studies are necessary to refine IPAF definitions for clinical use and guide directed management strategies. PMID- 29320808 TI - Paid Family Leave, Fathers' Leave-Taking, and Leave-Sharing in Dual-Earner Households. AB - Using difference-in-difference and difference-in-difference-in-difference designs, we study California's Paid Family Leave (CA-PFL) program, the first source of government-provided paid parental leave available to fathers in the Unites States. Relative to the pre-treatment mean, fathers of infants in California are 46 percent more likely to be on leave when CA-PFL is available. In households where both parents work, we find suggestive evidence that CA-PFL increases both father-only leave-taking (i.e., father on leave while mother is at work) and joint leave-taking (i.e., both parents on leave at the same time). Effects are larger for fathers of first-born children than for fathers of later born children. PMID- 29320809 TI - Does Paid Family Leave Reduce Nursing Home Use? The California Experience. AB - The intent of Paid Family Leave (PFL) is to make it financially easier for individuals to take time off from paid work to care for children and seriously ill family members. Given the linkages between care provided by family members and the usage of paid services, we examine whether California's PFL program influenced nursing home utilization in California during the 1999 to 2008 period. This is the first empirical study to examine the effects of PFL on long-term care patterns. Multivariate difference-indifference estimates across alternative comparison groups provide consistent evidence that the implementation of PFL reduced the proportion of the elderly population in nursing homes by 0.5 to 0.7 percentage points. Our preferred estimate, employing an empirically-matched group of control states, finds that PFL reduced nursing home usage by about 0.65 percentage points. For California, this represents an 11 percentrelative decline in elderly nursing home utilization. PMID- 29320810 TI - Breaking Habits: The Effect of the French Vending Machine Ban on School Snacking and Sugar Intakes. AB - This paper estimates the effect of the 2005 vending machine ban in French secondary schools on nutrient intakes and on the frequency of morning snacking at school. Using data before and after the ban, and exploiting the discontinuity associated with the age-dependent exposure to the ban, we specify a difference-in differences regression discontinuity design. Since the relationship between age at-interview and school level is not precise, we introduce fuzziness in the model. We find that the ban has generated a 10-gram reduction in sugar intakes from morning snacks at school, and a significant reduction in the frequency of these morning snacks. However, we find no evidence that the intervention affects total daily intakes, and our results are suggestive of compensation effects. PMID- 29320811 TI - Vaccination Policies: Requirements and Exemptions for Entering School. AB - (1) According to the World Health Organization, immunization prevents between 2 million to 3 million deaths every year across the world. (2) When immunization rates are high, herd immunity develops and limits the spread of the disease, which helps protect those who cannot be vaccinated. (3) Vaccination rates for measles, mumps and rubella vary across the United States, ranging from 85.6 percent in Washington, D.C., to 99.4 percent in Mississippi. PMID- 29320812 TI - Celebrating Ten Years of ACS Applied Materials & Interfaces. PMID- 29320814 TI - Genotypic Identification of Cystoisospora in Immunocompromised Patients Using Tm Variation Analysis. AB - Cystoisospora is responsible for morbidity in immunocompromised patients. PCR is sensitive for diagnosing Cystoisospora; however, it needs reevaluation for differential molecular diagnosis of cystoisosporiasis. We aimed at evaluating melting curve analysis (MCA) after real-time PCR (qPCR) in diagnosis and genotyping of Cystoisospora as an alternative to conventional PCR. We included 293 diarrheic stool samples of patients attending the Department of Clinical Oncology and Nuclear Medicine of Cairo University Hospitals, Egypt. Samples were subjected to microscopy, nested PCR (nPCR), and qPCR targeting the internal transcribed spacer 2 region (ITS2) of the ribosomal RNA (r RNA) gene followed by melting temperatures (Tms) analysis and comparing the results to PCR-RFLP banding patterns. Using microscopy and ITS2-nPCR, 3.1% and 5.8% of cases were Cystoisospora positive, respectively, while 10.9% were positive using qPCR. Genotyping of Cystoisospora by qPCR-MCA revealed 2 genotypes. These genotypes matched with 2 distinct melting peaks with specified Tms at 85.8 degrees C and 88.6 degrees C, which indicated genetic variation among Cystoisospora isolates in Egypt. Genotype II proved to be more prevalent (65.6%). HIV-related Kaposi sarcoma and leukemic patients harbored both genotypes with a tendency to genotype II. Genotype I was more prevalent in lymphomas and mammary gland tumors while colorectal and hepatocellular tumors harbored genotype II suggesting that this genotype might be responsible for the development of cystoisosporiasis in immunocompromised patients. Direct reliable identification and differentiation of Cystoisospora species could be established using qPCR-Tms analysis which is useful for rapid detection and screening of Cystoisospora genotypes principally in high risk groups. PMID- 29320813 TI - Therapeutic Effects of Resiniferatoxin Related with Immunological Responses for Intestinal Inflammation in Trichinellosis. AB - The immune response against Trichinella spiralis at the intestinal level depends on the CD4+ T cells, which can both suppress or promote the inflammatory response through the synthesis of diverse cytokines. During the intestinal phase, the immune response is mixed (Th1/Th2) with the initial predominance of the Th1 response and the subsequent domination of Th2 response, which favor the development of intestinal pathology. In this context, the glucocorticoids (GC) are the pharmacotherapy for the intestinal inflammatory response in trichinellosis. However, its therapeutic use is limited, since studies have shown that treatment with GC suppresses the host immune system, favoring T. spiralis infection. In the search for novel pharmacological strategies that inhibit the Th1 immune response (proinflammatory) and assist the host against T. spiralis infection, recent studies showed that resiniferatoxin (RTX) had anti-inflammatory activity, which decreased the serum levels of IL-12, INF-gamma, IL-1beta, TNF alpha, NO, and PGE2, as well the number of eosinophils in the blood, associated with decreased intestinal pathology and muscle parasite burden. These researches demonstrate that RTX is capable to inhibit the production of Th1 cytokines, contributing to the defense against T. spiralis infection, which places it as a new potential drug modulator of the immune response. PMID- 29320815 TI - Comparison of Placenta PCR and Maternal Serology of Aborted Women for Detection of Toxoplasma gondii in Ardabil, Iran. AB - Primary maternal infection with toxoplasmosis during pregnancy is frequently associated with transplacental transmission of the parasite to the fetus. This study was conducted to test the utility of PCR assay to detect recent infections with Toxoplasma in aborted women at various gestational ages who referred to Obstetrics and Gynecology Department of Alavi Hospital in Ardabil during 2014 and 2016. Two hundred women with a history of single or repeated abortion were investigated in this study. Blood samples were tested for specific anti Toxoplasma IgM and IgG antibodies by ELISA. According to the results, 53.5% of the women under study were positive for anti-Toxoplasma antibodies: 4.0% of them had IgM, 43.0% had IgG, and 6.5% had both IgM and IgG. Subsequently, Nested-PCR analysis was used to detect T. gondii DNA in the placenta of subjects. In 10.5% of the women, the results were positive for 529 bp element of T. gondii. Among them, 5 (23.8%) cases were IgM positive, 1 (4.8%) case was IgG positive, and 11 (52.4%) were both IgM and IgG positive. In 4 (19.0%) patients, none of the antibodies were found to be positive. In total, 16 patients had positive results in both ELISA and PCR methods, and 174 cases had negative results for new infection. The findings of this study revealed that T. gondii might be one of the significant factors leading to abortion, and that the analysis of placenta can be important in order to achieve increased detection sensitivity. PMID- 29320817 TI - Development of Monoclonal Antibodies for Diagnosis of Plasmodium vivax. AB - Plasmodium lactate dehydrogenase (pLDH) is a strong target antigen for the determination of infection with Plasmodium species specifically. However, a more effective antibody is needed because of the low sensitivity of the current antibody in many immunological diagnostic assays. In this study, recombinant Plasmodium vivax LDH (PvLDH) was experimentally constructed and expressed as a native antigen to develop an effective P. vivax-specific monoclonal antibody (mAb). Two mAbs (2CF5 and 1G10) were tested using ELISA and immunofluorescence assays (IFA), as both demonstrated reactivity against pLDH antigen. Of the 2 antibodies, 2CF5 was not able to detect P. falciparum, suggesting that it might possess P. vivax-specificity. The detection limit for a pair of 2 mAbs-linked sandwich ELISA was 31.3 ng/ml of the recombinant antigen. The P. vivax-specific performance of mAbs-linked ELISA was confirmed by in vitro-cultured P. falciparum and P. vivax-infected patient blood samples. In conclusion, the 2 new antibodies possessed the potential to detect P. vivax and will be useful in immunoassay. PMID- 29320816 TI - IL-12 and IL-23 Production in Toxoplasma gondii- or LPS-Treated Jurkat T Cells via PI3K and MAPK Signaling Pathways. AB - IL-12 and IL-23 are closely related in structure, and have been shown to play crucial roles in regulation of immune responses. However, little is known about the regulation of these cytokines in T cells. Here, we investigated the roles of PI3K and MAPK pathways in IL-12 and IL-23 production in human Jurkat T cells in response to Toxoplasma gondii and LPS. IL-12 and IL-23 production was significantly increased in T cells after stimulation with T. gondii or LPS. T. gondii and LPS increased the phosphorylation of AKT, ERK1/2, p38 MAPK, and JNK1/2 in T cells from 10 min post-stimulation, and peaked at 30-60 min. Inhibition of the PI3K pathway reduced IL-12 and IL-23 production in T. gondii-infected cells, but increased in LPS-stimulated cells. IL-12 and IL-23 production was significantly reduced by ERK1/2 and p38 MAPK inhibitors in T. gondii- and LPS stimulated cells, but not in cells treated with a JNK1/2 inhibitor. Collectively, IL-12 and IL-23 production was positively regulated by PI3K and JNK1/2 in T. gondii-infected Jurkat cells, but negatively regulated in LPS-stimulated cells. And ERK1/2 and p38 MAPK positively regulated IL-12 and IL-23 production in Jurkat T cells. These data indicate that T. gondii and LPS induced IL-12 and IL-23 production in Jurkat T cells through the regulation of the PI3K and MAPK pathways; however, the mechanism underlying the stimulation of IL-12 and IL-23 production by T. gondii in Jurkat T cells is different from that of LPS. PMID- 29320818 TI - Zoonotic Trematode Metacercariae in Fish from Yangon, Myanmar and Their Adults Recovered from Experimental Animals. AB - A survey was performed to investigate the infection status of zoonotic trematode (ZT) metacercariae in fish from a local market in Yangon City, Myanmar. A total of 264 fish (12 species) were collected through 4 times from December 2013 to June 2015. All collected fish were transferred to our laboratory on ice and examined by the artificial digestion method. More than 7 species of ZT metacercariae, i.e., Haplorchis taichui, H. pumilio, H. yokogawai, Centrocestus spp., Stellantchasmus falcatus, Pygidiopsis cambodiensis, and Procerovum sp. were detected. Metacercariae of H. taichui were collected in 58 (42.3%) out of 137 fish (5 species), and their average density was 42.9 per fish infected. Metacercariae of H. pumilio were detected in 96 (49.0%) out of 196 fish (9 species), and their average density was 23.6 per fish infected. H. yokogawai metacercariae were found in 40 (50.0%) out of 80 fish (5 species), and Centrocestus spp. metacercariae in 91 (50.8%) out of 179 fish (8 species), and their densities were 306 and 25.8 per fish infected, respectively. Metacercariae of S. falcatus and P. cambodiensis were detected only in mullets, Chelon macrolepis. A total of 280 Procerovum sp. metacercariae were found in 6 out of 12 climbing perch, Anabas testudineus. Morphological characteristics of adult flukes recovered from experimental animals were described. It has been first confirmed that fish from Yangon, Myanmar are commonly infected with various species of ZT metacercariae. PMID- 29320819 TI - Molecular and Biochemical Characterization of Opisthorchis viverrini Calreticulin. AB - Calreticulin (CALR), a multifunctional protein thoroughly researched in mammals, comprises N-, P-, and C-domain and has roles in calcium homeostasis, chaperoning, clearance of apoptotic cells, cell adhesion, and also angiogenesis. In this study, the spatial and temporal expression patterns of the Opisthorchis viverrini CALR gene were analyzed, and calcium-binding and chaperoning properties of recombinant O. viverrini CALR (OvCALR) investigated. OvCALR mRNA was detected from the newly excysted juvenile to the mature parasite by RT-PCR while specific antibodies showed a wide distribution of the protein. OvCALR was localized in tegumental cell bodies, testes, ovary, eggs, Mehlis' gland, prostate gland, and vitelline cells of the mature parasite. Recombinant OvCALR showed an in vitro suppressive effect on the thermal aggregation of citrate synthase. The recombinant OvCALR C-domain showed a mobility shift in native gel electrophoresis in the presence of calcium. The results imply that OvCALR has comparable function to the mammalian homolog as a calcium-binding molecular chaperone. Inferred from the observed strong immunostaining of the reproductive tissues, OvCALR should be important for reproduction and might be an interesting target to disrupt parasite fecundity. Transacetylase activity of OvCALR as reported for calreticulin of Haemonchus contortus could not be observed. PMID- 29320820 TI - First Molecular Characterization of Hypoderma actaeon in Cattle and Red Deer (Cervus elaphus) in Portugal. AB - Hypoderma spp. larvae cause subcutaneous myiasis in several animal species. The objective of the present investigation was to identify and characterize morphologically and molecularly the larvae of Hypoderma spp. collected from cattle (Bos taurus taurus) and red deer (Cervus elaphus) in the district of Castelo Branco, Portugal. For this purpose, a total of 8 larvae were collected from cattle (n=2) and red deer (n=6). After morphological identification of Hypoderma spp. larvae, molecular characterization was based on PCR-RFLP and mitochondrial CO1 gene sequence analysis. All larvae were morphologically characterized as the third instar larvae (L3) of H. actaeon. Two restriction enzymes were used for molecular identification of the larvae. TaqI restriction enzyme was not able to cut H. actaeon. However, MboII restriction enzyme differentiated Hypoderma species showing 210 and 450 bp bands in H. actaeon. Furthermore, according to the alignment of the mt-CO1 gene sequences of Hypoderma species and to PCR-RFLP findings, all the identified Hypoderma larvae were confirmed as H. actaeon. This is the first report of identification of Hypoderma spp. (Diptera; Oestridae) from cattle and red deer in Portugal, based on morphological and molecular analyses. PMID- 29320821 TI - A Case of Biliary Ascariasis in Korea. AB - Biliary ascariasis is still the leading cause of surgical complication of ascariasis, though its incidence has been dramatically reduced. Herein, we report a case of biliary ascariasis for the purpose of enhancing awareness of parasitic infections as a possible cause. A 72-year-old male visited the emergency room of Dankook University Hospital on 12 July 2015, complaining of right-upper-quadrant pain. By endoscopic retrograde cholangiopancreatography (ERCP), a tubular filling defect in the right hepatic duct was detected. The defect was endoscopically removed and diagnosed as an adult female of Ascaris lumbricoides worm, of 30 cm length. Upon removal of the worm, the pain subsided, and the patient was discharged without any complication. When treating cases of biliary colic, physicians should not neglect biliary ascariasis as the possible cause. PMID- 29320822 TI - Antimalarial Activity of C-10 Substituted Triazolyl Artemisinin. AB - We synthesized C-10 substituted triazolyl artemisinins by the Huisgen cycloaddition reaction between dihydroartemisinins (2) and variously substituted 1, 2, 3-triazoles (8a-8h). The antimalarial activities of 32 novel artemisinin derivatives were screened against a chloroquine-resistant parasite. Among them, triazolyl artemisinins with electron-withdrawing groups showed stronger antimalarial activities than those shown by the derivatives having electron donating groups. In particularly, m-chlorotriazolyl artemisinin (9d-12d) showed antimalarial activity equivalent to that of artemisinin and could be a strong drug candidate. PMID- 29320823 TI - First Blindness Cases of Horses Infected with Setaria Digitata (Nematoda: Filarioidea) in the Republic of Korea. AB - Ocular setariases of cattle were reported but those of equine hosts have never been reported in the Republic of Korea (Korea). We found motile worms in the aqueous humor of 15 horses (Equus spp.) from 12 localities in southern parts of Korea between January 2004 and November 2017. After the affected animals were properly restrained under sedation and local anesthesia, 10 ml disposable syringe with a 16-gauge needle was inserted into the anterior chamber of the affected eye to successfully remove the parasites. The male worm that was found in 7 of the cases showed a pair of lateral appendages near the posterior terminal end of the body. The papillar arrangement was 3 pairs of precloacal, a pair of adcloacal, and 3 pairs of postcloacal papillae, plus a central papilla just in front of the cloaca. The female worms found in the eyes of 8 horses were characterized by the tapering posterior terminal end of the body with a smooth knob. Worms were all identified as Setaria digitata (von Linstow, 1906) by the morphologic characteristics using light and electron microscopic observations. This is the first blindness cases of 15 horses infected with S. digitata (Nematoda: Filarioidea) in Korea. PMID- 29320824 TI - Seroprevalence of Dirofilaria immitis in Cats from Liaoning Province, Northeastern China. AB - The present study was performed to investigate the seroprevalence and risk factors for Dirofilaria immitis infection in cats from Liaoning province, northeastern China. From October 2014 to September 2016, sera of 651 cats, including 364 domestic cats and 287 feral cats (332 females and 319 males) were assessed. They were tested for the presence of D. immitis antigen using SNAP Heartworm RT test kit. In this population, the average prevalence was 4.5%. Age and rearing conditions (feral or domestic) were found to be associated with the prevalence of D. immitis. The prevalence was significantly higher in feral cats compared with domestic cats (8.4% vs 1.4%, P<0.01). There was no significant difference between males and females (4.7% vs 4.2%, P>0.05), but older cats (>=3 years old) showed a statistically higher prevalence compared with younger cats (<3 years old) in feral populations (16.8 vs 2.4%, P<0.01), while the difference between the age groups was not statistically significant in domestic cats (2.4% vs 0.51%, P>0.05), all these results suggest that outdoor exposure time may be one of the most important factors for D. immitis prevalence in cats. Results reveal that D. immitis are prevalence in domestic and feral cats in northeastern China, which indicates that appropriate preventive measures should be taken to decrease the incidence of feline heartworm disease in Liaoning province, northeastern China. PMID- 29320826 TI - [Wisdom of the Chinese experts from the "Chinese consensus report on diagnosis and management of severe asthma"]. PMID- 29320827 TI - [Personalized treatment of severe asthma]. PMID- 29320825 TI - Practical Algorisms for PCR-RFLP-Based Genotyping of Echinococcus granulosus Sensu Lato. AB - Echinococcus granulosus sensu lato (s.l.) is a causative agent of cystic echinococcosis or cystic hydatid disease in humans and domestic and wild animals. The disease is a serious health problem in countries associated with poverty and poor hygiene practices, particularly in livestock raising. We introduced a practical algorism for genotyping the parasite, which may be useful to many developing countries. To evaluate the efficiency of the algorism, we genotyped 3 unknown strains isolated from human patients. We found that unknowns 1 and 3 were included in G1, G2, and G3 genotypes group and unknown 2 was included in G4 genotype (Echinococcus equinus) according to the algorisms. We confirmed these results by sequencing the 3 unknown isolates cox1 and nad1 PCR products. In conclusion, these new algorisms are very fast genotype identification tools that are suitable for evaluating E. granulosus s.l. isolated from livestock or livestock holders, particularly in developing countries. PMID- 29320829 TI - [Novel insights into the mechanism of airway inflammation in severe asthma]. PMID- 29320828 TI - [The epidemiology and burden of severe asthma]. PMID- 29320830 TI - [A multi-center retrospective study of clinical characteristics and hospitalization costs of patients hospitalized for asthma exacerbation in China during 2013-2014]. AB - Objective: To study the characteristics of patients hospitalized for asthma exacerbation in 29 teaching hospitals in China and to evaluate the hospitalization costs of these patients. Methods: This was a retrospective study and involved patients hospitalized for asthma exacerbation in 29 hospitals throughout China during 2013-2014. Information about the demographic features, conditions before the admission, the outcome, the complications, and the costs was collected using the pre-designed case report form. The influencing factors of the hospitalization costs were analyzed. Results: 3 240 asthmatic patients (1 369 males and 1 871 females) were included and data were analyzed. There were 41.5% (1 346/3 240) patients who had a history of previous hospitalization or emergency department visits during the last year. Only 28.0% (907/3 240) patients had used asthma-controlling medications regularly before the admission. Seventy three(2.3%) patients were admitted to ICU and used mechanical ventilation. Mortality among these patients hospitalized for asthma exacerbation was 0.25% (8/3 240). The median hospitalization costs was 9 045(6 431, 13 035) RMB. The costs of medications, examinations and treatment accounted for 52.1%, 27.6%, and 9.6% respectively. The costs of asthma medications accounted for only 22.7% of the total medication costs, while the costs of antibiotics accounted for 44.0%. The patients who were admitted to ICU, used mechanical ventilation, complicated with pneumonia, or had a history of hospitalization or emergency department visits during the last year due to asthma exacerbations tended to cost more. Conclusion: In this study, we demonstrated that only a minority of the patients had used asthma controllers regularly before the admissions with exacerbations. The in-hospital mortality of asthma patients in this study was much lower than that reported in other countries. The average cost of hospitalization was much higher than the yearly cost of maintenance therapy. Medication was the predominant component of the total hospitalization costs, and the costs of antibiotics made up the major part of the total medication costs. PMID- 29320831 TI - [Efficacy and safety of anti-interleukin-5 therapy in patients with asthma: systematic reviews]. AB - Objective: To evaluate the efficacy and safety of anti-Interleukin-5 therapy in patients with asthma. Methods: Data were collected from PubMed, E-Mbase, Springer, Ovid, Cochrane Library, ClinicalTrials.gov, CNKI and Wanfang database ( Feb 2017). Bibliographies of the retrieved articles were checked and analyzed. Results: Twenty publications involving a total of 6 406 patients were used in the analysis, including 23 randomly controlled trials (RCTs) which compared anti interleukin 5 monoclonal antibody with placebo. Pooled analyses showed that anti interleukin 5 monoclonal antibody significantly reduced exacerbation risk [RR=0.66, 95%CI(0.59, 0.73)], increased FEV(1)[MD=0.10, 95%CI(0.07, 0.13)] and FEV(1)% predicted [MD=3.90, 95%CI(1.86, 5.95)], and improved the scores on the Asthma Quality of Life Questionnaire (AQLQ) [MD=0.24, 95%CI(0.16, 0.32)]. Anti interleukin 5 monoclonal antibody was also associated with significantly decreased risk of adverse events than placebo[OR=0.71, 95%CI(0.58, 0.87)]. Conclusion: Anti-interleukin 5 monoclonal antibody reduces the risk of exacerbations and improves quality of life in patients with asthma, and is tolerated well. PMID- 29320832 TI - [Diagnostic value of endobronchial ultrasonography with a guide sheath for peripheral pulmonary ground glass opacity]. AB - Objective: To explore the diagnostic value of endobronchial ultrasonography with a guide sheath (EBUS-GS) for peripheral pulmonary ground glass opacity (GGO). Methods: The clinical data of 27 consecutive patients with 27 GGOs diagnosed by EBUS-GS between November 2014 to December 2015 in our Cancer Hospital were retrospectively analyzed. The average age of these 27 patients, including 9 males and 18 females, was 59+/-11 years. The median lesion size of the 27 GGOs was 2.9+/-1.2 cm, including 24 mixed GGOs and 3 pure GGOs. EBUS images of all 27 GGOs were evaluated, cytological, histological and combination diagnosis analyzed, and complications observed. Results: Under thin bronchoscope, 2 out of 27 cases showed bronchial stenosis, 1 showed bronchial stenosis with mucosal swelling, and the other 24 did not show abnormalities. Twenty-five out of 27 GGOs were found by EBUS, including 22 cases of mGGO and 3 of pGGO. In these ultrasonic images of 22 mGGOs, 18 showed mixed blizzard sign, 3 showed diffusely heterogeneous acoustic shadow and 1showed blizzard sign. Ultrasonic images of 3 pGGOs all appeared as blizzard sign. Twenty-six cytological specimens were obtained, and 16 were diagnosed clearly. All 27 histological specimens were collected, and 18 were diagnosed clearly. Nineteen of 27 cases were diagnosed by combination of cytological and histological specimens. One complication of EBUS-GS with mild bleeding was observed, and hemorrhage was terminated by conservative treatment. Conclusions: EBUS-GS is valuable for GGO diagnosis with less complications and higher safety. GGO ultrasonic image manifested as mixed blizzard sign, blizzard sign or diffusely heterogeneous acoustic shadow. PMID- 29320833 TI - [Analysis of 9 cases of nodular type of pulmonary cryptococcosis with coexisting lung cancer confirmed by pathological examinations]. AB - Objective: To describe the characteristics of the nodular type of pulmonary cryptococcosis (PC) with coexisting lung cancer. Methods: A total of 9 cases of PC with coexisting lung cancer, admitted to Fuzhou Pulmonary Hospital of Fujian from 1st January 2009 to 31th December 2016, and confirmed by pathological examinations, were studied and the related literature were reviewed. Results: The patients consisted of 1 male and 8 females, with a mean age of (53+/-10) years (range, 38 to 68 years). Four patients (44.4%) had underlying diseases, 3 with diabetes mellitus and 1 with gastric cancer surgery. The main clinical manifestations of most cases were cough and phlegm. The lesions of PC on chest CT were mostly solitary or multiple nodules with a diameter < 1 cm, and the lesions of carcinoma were shown as solitary nodules with a variety of signs suggestive of malignancy. All the patients were confirmed to have concomitant PC and lung adenocarcinoma by pathological examinations. Lung cancer stage was early (Tis and I-II) in 88.9 % (8 cases) of the cases. All the patients received surgery and postoperative medical therapy. The prognosis was relatively good in most of them except 1 case with death due to lung cancer metastasis and 1 case with lung cancer recurrence. Conclusions: Coexistence of PC and lung cancer is rare and the clinical symptoms are not specific. When PC coexists with carcinoma and manifests as pulmonary nodule, it mimics malignant lesions and is extremely easy to be misdiagnosed. Therefore PC must be considered in the differential diagnosis of pulmonary nodules. PMID- 29320834 TI - [The role and mechanism of mesenchymal stem cell in modulating human pulmonary microvascule endothelial cell permeability via paracrine hepatocyte growth factor]. AB - Objective: To explore the role and mechanism of mesenchymal stem cell (MSC) in modulating human pulmonary microvascular endothelial cell (HPMECs) permeability via hepatocyte growth factor (HGF). Methods: The study introduced a co-cultured model between HPMECs and human mesenchymal stem cell conditioned media (MSC-CM) collected from MSCs after 24 h hypoxia culture, and meanwhile HGF was neutralized in MSC-CM by anti-HGF antibody respectively, followed by lipopolysaccharide (LPS) stimulation. Finally, the following measurements were performed: the permeability of HPMECs, the protein expression of vascular endothelial cadherin (VE-cadherin), Occludin in HPMECs by Western blot, HPMECs apoptosis by Annexin V-FITC/PI and HPMECs proliferation by 3-(4, 5)-dimethylthiahiazo (-z-y1)-3, 5-di- phenytetrazoliumromide(MTT). Results: Compared to LPS group (4.15+/-0.88), MSC-CM reduced endothelial paracellular permeability injured by LPS(1.56+/-0.36, P<0.01), however, the MSC-CM effect was significantly blocked by anti-HGF antibody(3.11+/-0.74, P<0.05). Furthermore MSC-CM significantly increased the expression of VE-cadherin(0.71+/-0.05 vs. 0.38+/-0.19, P<0.05)and Occludin protein(0.96+/-0.05 vs. 0.51+/-0.02, P<0.05) in HPMECs, which was significantly blocked by anti-HGF antibody (P<0.05). MSC-CM significantly reduced the number of early apoptotic cells (6.82+/-1.80 vs. 17.09+/-1.89, P<0.05). However, the effect of MSC-CM was significantly blocked by neutralizing HGF (12.07+/-0.98, P<0.01). The cell viability results by MTT assay confirmed that MSC-CM(6.82+/-1.80, P<0.05)restored cell viability to a greater extent than LPS stimulation only(0.47+/-0.09), and meanwhile the MSC-CM effect was significantly inhibited by neutralizing HGF from MSC-CM with anti-HGF antibody (0.69+/-0.29, P<0.05). Conclusion: HGF secreted by MSCs reduces endothelial cell paracelluar permeability induced by LPS, and the possible mechanisms include remodelling of endothelial intercellular adherence junction, promoting endothelial cell proliferation and restraining endothelial cell apoptosis. PMID- 29320835 TI - [Advances in signal pathway of macrophage polarization in tuberculosis]. PMID- 29320836 TI - [The progress of tracheobronchopathia osteochondroplastica]. PMID- 29320837 TI - [Role of cigarette smoke in the pathogenesis of pulmonary hypertension]. PMID- 29320838 TI - [Advances in autoantibodies of idiopathic inflammatory myopathy and interstitial lung disease]. PMID- 29320839 TI - Large vessel vasculitis: is it more common than usually assumed? AB - Not available. PMID- 29320840 TI - Microvascular damage evaluation in systemic sclerosis: the role of nailfold videocapillaroscopy and laser techniques. AB - Microvascular damage and a decrease in peripheral blood perfusion are typical features of systemic sclerosis (SSc) with serious clinical implications, not only for a very early diagnosis, but also for disease progression. Nailfold videocapillaroscopy is a validated and safe imaging technique able to detect peripheral capillary morphology, as well as to classify and to score any nailfold abnormalities into different microangiopathy patterns. Capillaroscopic analysis is now included in the ACR/EULAR classification criteria for SSc. The decrease in peripheral blood perfusion is usually associated with microvascular damage in SSc, which may be studied by different methods. Several of these make use of safe laser technologies. This paper focuses on these new clinical aspects to assess SSc microvascular impairment. PMID- 29320841 TI - The role of klotho in systemic sclerosis. AB - The aim was to evaluate the role of klotho in the pathogenesis of systemic sclerosis (SSc), through the measurement of its serum concentration in SSc patients compared to healthy controls, and to assess the association with cutaneous and visceral involvement. Blood samples obtained from both SSc patients and healthy controls were analysed by an ELISA assay for the detection of human klotho. SSc patients were globally evaluated for disease activity and assessed through the modified Rodnan's Skin Score, Medsger's scale, pulmonary function tests, 2D-echocardiography, nailfold capillaroscopy and laboratory tests. Our cohort consisted of 69 SSc patients (61 females, mean age 64.5+/-12.5 years, median disease duration 9.0 (IQR 8) years) and 77 healthy controls (28 females, mean age 49.7+/-10.2 years). In the group of SSc patients, 19 (27.5%) suffered from a diffuse form of SSc. All patients were receiving IV prostanoids, and some of them were concomitantly treated with immunosuppressive drugs (prednisone, hydroxychloroquine, mofetil mycophenolate, methotrexate, cyclosporin A and azathioprine). The median serum concentration of klotho was significantly lower in patients compared to controls (0.23 ng/mL vs 0.60 ng/mL; p<0.001). However, Spearman's test showed no significant association between klotho serum levels and disease activity, concerning either clinical, laboratory or instrumental findings. Our data show a significant deficit of klotho in SSc patients although any significant association was detected between klotho serum concentration and the clinical, laboratory or instrumental features of the disease. However, due to the limits of the study, further investigations are required. PMID- 29320842 TI - Carpal tunnel syndrome in HIV-positive patients coinfected with HCV. AB - A wide range of rheumatic and peripheral nervous system disorders may develop in patients with HIV infection, leading to pain, sensory symptoms, and muscle weakness. Over the past three decades, the progress in management of HIV disease with anti-retroviral therapy (ART) has resulted in increased life expectancy for people living with HIV disease. With this new chronicity of the disease has a constellation of chronic musculoskeletal, orthopaedic and rheumatic manifestations has emerged, as potential complications of the disease itself and/or the results of ART treatment regimen and/or because of expected age related symptoms/manifestations. The incidence of CTS in the general population is around 3.8% with clinical examination and, when electroneuromyography is used, it is 2.7%. In the HIV-positive population, the incidence is very close to that of the general population. The aim of this study was to evaluate the incidence of CTS and to identify factors influencing the development of CTS in HIV-infected patients attending our clinic. This syndrome has been associated with advanced HIV disease and the use of ART possibly due to an increased inflammatory state and the presence of concurrent HCV infection. PMID- 29320843 TI - Diagnostic utility of serum melatonin levels in systemic lupus erythematosus: a case-control study. AB - Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune inflammatory disease and early diagnosis is of clinical and therapeutic importance. Melatonin is an endogenous endolamine hormone that plays an important role in the immune system due to its anti-inflammatory action. This study was designed to assess serum melatonin levels in SLE patients and to evaluate the possible correlation between serum melatonin and patients' baseline characteristics. A case-control study was performed on 50 SLE patients (48 females and 2 males), diagnosed according to the revised 1997 ACR Criteria, and 25 healthy controls (24 females and 1 male), matched by age and sex. Daily serum melatonin levels were investigated in all participants using human melatonin enzyme linked immunosorbent assay (ELISA) kit (MYBIOSOURCE (MBS), United States). Serum melatonin concentration was significantly lower in patients with SLE compared to healthy controls (19.17+/-6.86 pg/mL vs 23.26+/-6.71 pg/mL, p=0.017). Serum melatonin concentration <=18.51 pg/mL was the optimum cut off value to differentiate between SLE patients and healthy controls with an accuracy of 69.3%, a sensitivity of 66%, and a specificity of 76%. The positive predictive value (PPV) at pretest 50% was 73.3% and PPV at pretest 90% was 96.1%; the negative predictive value (NPV) at 10% was 95.3%. Patients' characteristics were not significantly correlated with serum melatonin concentrations using multiple logistic regression analysis. Serum melatonin was a valid measure to differentiate between SLE patients and healthy controls with good accuracy, sensitivity and specificity and PPV and NPV. There was no significant correlation between serum melatonin concentrations and patients' baseline characteristics. PMID- 29320844 TI - Demyelinating syndrome in SLE: review of different disease subtypes and report of a case series. AB - Demyelinating syndrome (DS) is a rare manifestation of systemic lupus erythematosus (SLE) (1%) with high clinical heterogeneity and potentially severe prognosis. It can represent a diagnostic and therapeutic challenge for clinicians. A recent study described 5 different patterns of demyelinating disease presentation, characterised by specific clinical, laboratory and brain and spine magnetic resonance imaging abnormalities: 1) neuromyelitis optica; 2) neuromyelitis optica spectrum disorders; 3) DS prevalently involving the brain; 4) DS prevalently involving the brainstem; 5) clinically isolated syndrome. In this review we briefly discuss typical characteristics of each DS presentation in SLE and we describe 5 illustrative clinical cases, one for each subset of DS, considering both diagnostic and therapeutic options. PMID- 29320845 TI - Subcutaneous administration of tocilizumab is effective in myointimal hyperplasia remodelling in refractory Takayasu arteritis. AB - Takayasu arteritis (TA) is a chronic inflammatory disease of unknown origin that involves large and mediumsized arteries, primarily the aorta and its major branches. TA is a therapeutic challenge because corticosteroids and conventional immunosuppressive agents are not always effective or safe. Interleukin 6 (IL-6) has emerged as a key cytokine in the pathogenesis of TA and its serum levels have been shown to well correlate with disease activity. We report a 19 years old female patient with TA refractory to conventional immunosuppressive agents, successfully treated with subcutaneous tocilizumab, a humanized monoclonal antibody against IL-6 receptor, in which ultrasonography (US) was used as imaging tool to follow up the patient. Currently, clinical indices of disease activity, inflammatory markers, carotid intima media thickness (cIMT) as well as carotid pulse wave velocity (cPWV) normalised, while the prednisone dosage has been tapered. Tocilizumab appears to be a good option in refractory TA, with a remarkable steroid-sparing effect. In addition, it seems to have a favourable effect on endothelial function, as it improved cIMT and PWV. PMID- 29320846 TI - Plantar pain is not always fasciitis. AB - The case is described of a patient with chronic plantar pain, diagnosed as fasciitis, which was not improved by conventional treatment. Magnetic resonance imaging revealed flexor hallucis longus tenosynovitis, which improved after local glucocorticoid injection. PMID- 29320847 TI - New insights into the role of renal resident cells in the pathogenesis of lupus nephritis. AB - Systemic lupus erythematosus (SLE), an autoimmune disease of unknown etiology, is characterized by the production of autoantibodies and end-organ damage. Lupus nephritis affects up to 70% of patients with SLE and is the most critical predictor of morbidity and mortality. The immunopathogenesis of SLE is complex and most clinical trials of biologics targeting immune cells or their mediators have failed to show efficacy in SLE patients. It has therefore become increasingly clear that additional, local factors give rise to the inflammation and organ damage. In this review, we describe recent advances in the role of renal resident cells, including podocytes, mesangial cells, and epithelial cells, in the pathogenesis of lupus nephritis. PMID- 29320848 TI - Assessment of Metal Immission in Urban Environments Using Elemental Concentrations and Zinc Isotope Signatures in Leaves of Nerium oleander. AB - A thorough understanding of spatial and temporal emission and immission patterns of air pollutants in urban areas is challenged by the low number of air-quality monitoring stations available. Plants are promising low-cost biomonitoring tools. However, source identification of the trace metals incorporated in plant tissues (i.e., natural vs anthropogenic) and the identification of the best plant to use remain fundamental challenges. To this end, Nerium oleander L. collected in the city of Zaragoza (NE Spain) has been investigated as a biomonitoring tool for assessing the spatial immission patterns of airborne metals (Pb, Cu, Cr, Ni, Ce, and Zn). N. oleander leaves were sampled at 118 locations across the city, including the city center, industrial hotspots, ring-roads, and outskirts. Metal concentrations were generally higher within a 4 km radius around the city center. Calculated enrichment factors relative to upper continental crust suggest an anthropogenic origin for Cr, Cu, Ni, Pb, and Zn. Zinc isotopes showed significant variability that likely reflects different pollution sources. Plants closer to industrial hotspots showed heavier isotopic compositions (delta66ZnLyon up to +0.700/00), indicating significant contributions of fly ash particles, while those far away were isotopically light (up to -0.950/00), indicating significant contributions from exhaust emissions and flue gas. We suggest that this information is applied for improving the environmental and human risk assessment related to the exposure to air pollution in urban areas. PMID- 29320849 TI - Density Functional Theory Study on the Demethylation Reaction between Methylamine, Dimethylamine, Trimethylamine, and Tamoxifen Catalyzed by a Fe(IV) Oxo Porphyrin Complex. AB - In this work, we studied computationally the N-demethylation reaction of methylamine, dimethylamine, and trimethylamine as archetypal examples of primary, secondary, and tertiary amines catalyzed by high-field low-spin Fe-containing enzymes such as cytochromes P450. Using DFT calculations, we found that the expected C-H hydroxylation process was achieved for trimethylamine. When dimethylamine and methylamine were studied, two different reaction mechanisms (C H hydroxylation and a double hydrogen atom transfer) were computed to be energetically accessible and both are equally preferred. Both processes led to the formation of formaldehyde and the N-demethylated substrate. Finally, as an illustrative example, the relative contribution of the three primary oxidation routes of tamoxifen was rationalized through energetic barriers obtained from density functional calculations and docking experiments involving CYP3A4 and CYP2D6 isoforms. We found that the N-demethylation process was the intrinsically favored one, whereas other oxidation reactions required most likely preorganization imposed by the residues close to the active sites. PMID- 29320850 TI - Uncovering the Origin of Divergence in the CsM(CrO4)2 (M = La, Pr, Nd, Sm, Eu; Am) Family through Examination of the Chemical Bonding in a Molecular Cluster and by Band Structure Analysis. AB - A series of f-block chromates, CsM(CrO4)2 (M = La, Pr, Nd, Sm, Eu; Am), were prepared revealing notable differences between the AmIII derivatives and their lanthanide analogs. While all compounds form similar layered structures, the americium compound exhibits polymorphism and adopts both a structure isomorphous with the early lanthanides as well as one that possesses lower symmetry. Both polymorphs are dark red and possess band gaps that are smaller than the LnIII compounds. In order to probe the origin of these differences, the electronic structure of alpha-CsSm(CrO4)2, alpha-CsEu(CrO4)2, and alpha-CsAm(CrO4)2 were studied using both a molecular cluster approach featuring hybrid density functional theory and QTAIM analysis and by the periodic LDA+GA and LDA+DMFT methods. Notably, the covalent contributions to bonding by the f orbitals were found to be more than twice as large in the AmIII chromate than in the SmIII and EuIII compounds, and even larger in magnitude than the Am-5f spin-orbit splitting in this system. Our analysis indicates also that the Am-O covalency in alpha CsAm(CrO4)2 is driven by the degeneracy of the 5f and 2p orbitals, and not by orbital overlap. PMID- 29320851 TI - Stringency of Synthetic Promoter Sequences in Clostridium Revealed and Circumvented by Tuning Promoter Library Mutation Rates. AB - Collections of characterized promoters of different strengths are key resources for synthetic biology, but are not well established for many important organisms, including industrially relevant Clostridium spp. When generating promoters, reporter constructs are used to measure expression, but classical fluorescent reporter proteins are oxygen-dependent and hence inactive in anaerobic bacteria like Clostridium. We directly compared oxygen-independent reporters of different types in Clostridium acetobutylicum and found that glucuronidase (GusA) from E. coli performed best. Using GusA, a library of synthetic promoters was first generated by a typical approach entailing complete randomization of a constitutive thiolase gene promoter (Pthl) except for the consensus -35 and -10 elements. In each synthetic promoter, the chance of each degenerate position matching Pthl was 25%. Surprisingly, none of the tested synthetic promoters from this library were functional in C. acetobutylicum, even though they functioned as expected in E. coli. Next, instead of complete randomization, we specified lower promoter mutation rates using oligonucleotide primers synthesized using custom mixtures of nucleotides. Using these primers, two promoter libraries were constructed in which the chance of each degenerate position matching Pthl was 79% or 58%, instead of 25% as before. Synthetic promoters from these "stringent" libraries functioned well in C. acetobutylicum, covering a wide range of strengths. The promoters functioned similarly in the distantly related species Clostridium sporogenes, and allowed predictable metabolic engineering of C. acetobutylicum for acetoin production. Besides generating the desired promoters and demonstrating their useful properties, this work indicates an unexpected "stringency" of promoter sequences in Clostridium, not reported previously. PMID- 29320852 TI - Exposures to Atmospheric PM10 and PM10-2.5 Affect Male Semen Quality: Results of MARHCS Study. AB - Studies have shown that the effects of ambient particulate matter (PM) may be related to particle's size. However, results on the relationships between different PM and reproductive health are controversial. To explore the impacts of various PM fractions on male reproductive health, a total of 796 eligible subjects recruited in 2013 baseline investigation. In addition, there were 656 (82.4%) and 568 (71.3%) subjects participated follow-up surveys in 2014 and 2015, respectively. We used multivariable regression analysis and mixed-effect model to investigate the associations between air pollutants PM10, PM10-2.5, and PM2.5 exposures and semen quality, sperm DNA fragmentation and serum reproductive hormones of subjects. In the preliminary regression analysis, PM10, PM10-2.5, and PM2.5 exposure all associated with sperm concentration, morphology, sperm high DNA stainability (HDS), serum estradiol and testosterone levels. However, in mixed models, we only found that PM10 exposure were negatively associated with sperm normal morphology (95% CI: -14.13, -24.47) but positively associated with sperm progressive motility (95% CI: 23.00, 8.49), and PM10-2.5 exposure was inversely associated with sperm concentration (95% CI: -9.06, -27.31) after multiplicity adjustment. Our results provide the evidence that air PM10 and PM10 2.5 exposures, not PM2.5, are risk factors of semen quality. PMID- 29320854 TI - A Highly Resolved Mercury Emission Inventory of Chinese Coal-Fired Power Plants. AB - As the largest coal consumer in China, the coal-fired power plants have come under increasing public concern in regard to atmospheric mercury pollution. This study developed an up-to-date and high-resolution mercury emission inventory of Chinese coal-fired power plants using a unit-based method that combined data from individual power plants, provincial coal characteristics, and industry removal efficiencies. National mercury emissions in 2015 were estimated at 73 tons, including 54 tons of elemental mercury, 18 tons of gaseous oxidized mercury and 1 ton of particle-bound mercury. Pulverized coal boilers emitted 65 tons, mainly in the coastal provinces and coal-electricity bases. Circulating fluidized bed boilers emitted 8 tons, mainly in Inner Mongolia and Shanxi Province. The average mercury emission intensity over the Chinese mainland was 18.3 g/GWh, which was similar to the limit for low-rank coal-fired units in the United States. The overall uncertainty of national mercury emission was estimated to be -19% to 20%, with the mercury content in coal being the major contributor. In most provinces, monthly mercury emissions generally peaked in December and August. However, monthly partition coefficients of southwest China were obviously lower than other regions from June to October due to the high proportion of hydropower generation. PMID- 29320855 TI - Sensitive Detection of a Nerve-Agent Simulant through Retightening Internanofiber Binding for Fluorescence Enhancement. AB - In this work, we develop fluorescent hierarchical nanofiber bundles 1, which involve the internanofiber hydrogen-bonding interactions, for rapid and sensitive detection of diethyl chlorophosphate (DCP) vapor. First, the internanofiber hydrogen-bonding strength can be weakened by photoexcitation, which thereby increases the internanofiber spacing and decreases the fluorescence intensity. Then, when exposed to trace DCP vapor, the strong interactions between DCP and hydroxyl groups on the nanofibers can effectively retighten the nanofibers and enhance the fluorescence as the detection signal. In contrast, the interferences, such as common organic solvents, cannot retighten nanofiber bundles 1 because of the lack of strong interactions with the nanofibers. On the basis of this novel detection mechanism, fluorescence detection of DCP with rapid signal response (ca. 3 s) and high sensitivity (15 ppb) is achieved. PMID- 29320853 TI - High-CO2 Requirement as a Mechanism for the Containment of Genetically Modified Cyanobacteria. AB - As researchers engineer cyanobacteria for biotechnological applications, we must consider potential environmental release of these organisms. Previous theoretical work has considered cyanobacterial containment through elimination of the CO2 concentrating mechanism (CCM) to impose a high-CO2 requirement (HCR), which could be provided in the cultivation environment but not in the surroundings. In this work, we experimentally implemented an HCR containment mechanism in Synechococcus sp. strain PCC7002 (PCC7002) through deletion of carboxysome shell proteins and showed that this mechanism contained cyanobacteria in a 5% CO2 environment. We considered escape through horizontal gene transfer (HGT) and reduced the risk of HGT escape by deleting competence genes. We showed that the HCR containment mechanism did not negatively impact the performance of a strain of PCC7002 engineered for L-lactate production. We showed through coculture experiments of HCR strains with ccm-containing strains that this HCR mechanism reduced the frequency of escape below the NIH recommended limit for recombinant organisms of one escape event in 108 CFU. PMID- 29320856 TI - Second-Order Raman Scattering in Exfoliated Black Phosphorus. AB - Second-order Raman scattering has been extensively studied in carbon-based nanomaterials, for example, nanotube and graphene, because it activates normally forbidden Raman modes that are sensitive to crystal disorder, such as defects, dopants, strain, and so forth. The sp2-hybridized carbon systems are, however, the exception among nanomaterials, where first-order Raman processes usually dominate. Here we report the identification of four second-order Raman modes, named D1, D1', D2 and D2', in exfoliated black phosphorus (P(black)), an elemental direct-gap semiconductor exhibiting strong mechanical and electronic anisotropies. Located in close proximity to the Ag1 and Ag2 modes, these new modes dominate at an excitation wavelength of 633 nm. Their evolutions as a function of sample thickness, excitation wavelength, and defect density indicate that they are defect-activated and involve high-momentum phonons in a doubly resonant Raman process. Ab initio simulations of a monolayer reveal that the D' and D modes occur through intravalley scatterings with split contributions in the armchair and zigzag directions, respectively. The high sensitivity of these D modes to disorder helps explaining several discrepancies found in the literature. PMID- 29320857 TI - Microhydration of 2-Naphthol at Ground, First Excited Triplet, and First Excited Singlet States: A Case Study on Photo Acids. AB - Molecular interactions of 2-naphthol (nap) with water molecules are studied at the ground, first excited triplet and first excited singlet states, applying DFT and TD-DFT methods. The minimum energy structure of hydrated clusters of 2 naphthol up to four water molecules are selected from several possible input geometries. It is observed that the minimum energy conformer of the tetra-hydrate of 2-naphthol has proton transfer occurring from nap to solvent water molecules, in its first excited singlet state. This is however not observed in case of its ground or first excited triplet state. It is consistent with the fact that the pKa of nap in the first excited singlet state is very much lower compared to the ground and first excited triplet state. This is also reflected in the O-H potential energy profile of tetrahydrate of nap, obtained by performing a rigid potential energy scan of the dissociating O-H bond of nap at ground, first excited triplet and first excited singlet states. Frequency of O-H stretching vibration of 2-napthol and its hydrated clusters in the ground (S0) as well as in the first excited singlet (S1) state are calculated and compared with the available experimental data. The performance of macroscopic solvation model is also examined in the ground and these excited states. PMID- 29320858 TI - Editorial for January 2018 for JPC A/B/C. PMID- 29320859 TI - Editorial for January 2018 for JPC A/B/C. PMID- 29320860 TI - Time-of-flight secondary ion mass spectrometry analyses of vancomycin. AB - As an antibiotic that prevents and treats infections caused by Gram-positive bacteria such as Staphylococcus aureus, vancomycin incorporated in a biodegradable polymer poly(lactide-co-glycolide) provides opportunities to construct controlled-release drug delivery systems. Developments associated with this promising system have been largely concentrated on areas of drug delivery kinetics and biodegradability. In order to provide surface analytical approaches to this important system, the authors demonstrate applicability of time-of-flight secondary ion mass spectrometry (TOF-SIMS) in three-dimensional molecular imaging for a model system consisting of alternating layers of ploy(lactide-co-glycolide) and vancomycin. TOF-SIMS imaging clarified that the two chemicals can undergo phase separation when dimethyl sulfoxide is used as the solvent. The authors identified two diagnostic ions that are abundant and structural moieties of vancomycin. The results on TOF-SIMS imaging and depth profiling vancomycin provide useful information for further applications of TOF-SIMS in the development of antibiotic drug delivery systems involving the use of vancomycin. PMID- 29320861 TI - 3D echoendoscopy and miniprobes for rectal cancer staging. AB - BACKGROUND: rectal cancer staging using rigid probes or echoendoscopes has some limitations. The aim of the study was to compare rectal cancer preoperative staging using conventional endoluminal ultrasonography with three-dimensional endoscopic ultrasonography and miniprobes. MATERIALS AND METHODS: sixty patients were included and evaluated with: a) a conventional echoendoscope (7.5 and 12 MHz); b) miniprobes (12 MHz); and c) the Easy 3D Freescan software for three dimensional endoscopic ultrasonography. The reference or gold standard was conventional endoluminal ultrasonography in all cases and pathological assessment for those without preoperative therapy. The differences in T and N staging accuracy in both longitudinal and circumferential extension were evaluated. RESULTS: with regard to T staging, conventional endoluminal ultrasonography had an accuracy of 85% (compared to pathological analysis), and the agreement between miniprobes vs conventional endoluminal ultrasonography (kappa = 0.81) and three dimensional endoscopic ultrasonography vs conventional endoluminal ultrasonography (k = 0.87) was significant. In addition, miniprobes had an accuracy of 82% and three-dimensional endoscopic ultrasonography had a higher accuracy (96%). With regard to N staging, conventional endoluminal ultrasonography had an accuracy of 91% with a sensitivity of 78%. However, the agreement between miniprobes and conventional endoluminal ultrasonography and three-dimensional endoscopic ultrasonography and conventional endoluminal ultrasonography (k = 0.70) was lower. Interestingly, miniprobes had a lower accuracy of 81% whereas three-dimensional endoscopic ultrasonography had an accuracy of 100% without any false negative. No false positives were observed in any of the techniques. Accuracy for T and N staging was not influenced by longitudinal or circumferential extensions of the tumor in all types of endoscopic ultrasonography analyzed. CONCLUSIONS: miniprobes and especially three dimensional endoscopic ultrasonography may be relevant during rectal cancer staging. PMID- 29320862 TI - Inter and intra-observer concordance for the diagnosis of portal hypertension gastropathy. AB - INTRODUCTION: At present there is no fully accepted endoscopic classification for the assessment of the severity of portal hypertensive gastropathy (PHG). Few studies have evaluated inter and intra-observer concordance or the degree of concordance between different endoscopic classifications. OBJECTIVES: To evaluate inter and intra-observer agreement for the presence of portal hypertensive gastropathy and enteropathy using different endoscopic classifications. METHODS: Patients with liver cirrhosis were included into the study. Enteroscopy was performed under sedation. The location of lesions and their severity was recorded. Images were videotaped and subsequently evaluated independently by three different endoscopists, one of whom was the initial endoscopist. The agreement between observations was assessed using the kappa index. RESULTS: Seventy-four patients (mean age 63.2 years, 53 males and 21 females) were included. The agreement between the three endoscopists regarding the presence or absence of PHG using the Tanoue and McCormack classifications was very low (kappa scores = 0.16 and 0.27, respectively). CONCLUSIONS: The current classifications of portal hypertensive gastropathy have a very low degree of intra and inter observer agreement for the diagnosis and assessment of gastropathy severity. PMID- 29320863 TI - Evaluation of an iterative model-based CT reconstruction algorithm by intra patient comparison of standard and ultra-low-dose examinations. AB - Background The explosive growth of computer tomography (CT) has led to a growing public health concern about patient and population radiation dose. A recently introduced technique for dose reduction, which can be combined with tube-current modulation, over-beam reduction, and organ-specific dose reduction, is iterative reconstruction (IR). Purpose To evaluate the quality, at different radiation dose levels, of three reconstruction algorithms for diagnostics of patients with proven liver metastases under tumor follow-up. Material and Methods A total of 40 thorax-abdomen-pelvis CT examinations acquired from 20 patients in a tumor follow up were included. All patients were imaged using the standard-dose and a specific low-dose CT protocol. Reconstructed slices were generated by using three different reconstruction algorithms: a classical filtered back projection (FBP); a first-generation iterative noise-reduction algorithm (iDose4); and a next generation model-based IR algorithm (IMR). Results The overall detection of liver lesions tended to be higher with the IMR algorithm than with FBP or iDose4. The IMR dataset at standard dose yielded the highest overall detectability, while the low-dose FBP dataset showed the lowest detectability. For the low-dose protocols, a significantly improved detectability of the liver lesion can be reported compared to FBP or iDose4 ( P = 0.01). The radiation dose decreased by an approximate factor of 5 between the standard-dose and the low-dose protocol. Conclusion The latest generation of IR algorithms significantly improved the diagnostic image quality and provided virtually noise-free images for ultra-low dose CT imaging. PMID- 29320864 TI - Diagnostic performance of static single-scan stress perfusion cardiac computed tomography in detecting hemodynamically significant coronary artery stenosis: a comparison with combined invasive coronary angiography and cardiovascular magnetic resonance-myocardial perfusion imaging. AB - Background Non-invasive anatomical and physiological evaluations of coronary artery disease (CAD) may be obtained with static single-scan stress perfusion cardiac computed tomography (SSPCT). Purpose To determine the diagnostic performance of static SSPCT for identifying hemodynamically significant CAD. Material and Methods This prospective study included 29 patients with suspected or known CAD who underwent static SSPCT, cardiovascular magnetic resonance myocardial perfusion imaging (CMR-MPI), and invasive coronary angiography (ICA). CT was performed as follows: (i) coronary calcium scan; (ii) static SSPCT for both coronary artery (coronary CT angiography [CCTA]) and myocardial perfusion (perfusion CT [PCT]) during adenosine infusion; (iii) late-phase scan. The diagnostic performance of CCTA alone, PCT alone, and SSPCT for the detection of a hemodynamically significant CAD (a perfusion defect in a vascular territory subtended by a coronary vessel with >= 50% stenosis) was compared with that of combined ICA/CMR-MPI representing the standard of reference. Results Twenty-three (79%) patients and 47 (54%) vascular territories manifested ischemia-causing coronary stenoses by combined ICA/CMR-MPI. The per-vessel sensitivity, specificity, positive and negative predictive values, and area under the receiver operating characteristic curve (AUC) of the SSPCT were 92%, 88%, 90%, 90%, and 0.90, respectively, compared to those of the combined ICA/CMR-MPI. These values for the CCTA alone were 96%, 63%, 75%, 93%, and 0.79, respectively; and the values for the PCT alone were 94%, 83%, 86%, 92%, and 0.88, respectively. The AUC of SSPCT was significantly ( P = 0.013) higher than that of the CCTA alone. Conclusion Static SSPCT may facilitate detection of hemodynamically significant CAD. PMID- 29320866 TI - Paradigm shift in psychiatry: what may it involve? AB - OBJECTIVE: This study aims to examine the potential nature of an ongoing paradigm shift in psychiatry that has been suggested to be occurring. CONCLUSIONS: New findings in traumatology and neuroscience do form a potential platform for a paradigm shift. Prior conflicting paradigms are suggested to be due to biases arising from mental structures themselves. A new wholist perspective is proposed, which makes sense of and incorporates previous paradigms, and coheres recent understanding of right- and left-brain functioning and biopsychosocial traumatic processes and their ramifications. The perspective makes sense of the great variety of post-traumatic manifestations ranging from somatic to meaning-making dysfunctions. The wholist perspective may well be an important step in solidifying a fresh paradigmatic perspective in psychiatry. PMID- 29320870 TI - Transgenic Organisms Meet Redox Bioimaging: One Step Closer to Physiology. AB - SIGNIFICANCE: Redox signaling is a common mechanism in the cellular response toward a variety of stimuli. For analyzing redox-dependent specific alterations in a cell, genetically encoded biosensors were highly instrumental in the past. To advance the knowledge about the importance of this signaling mechanism in vivo, models that are as close as possible to physiology are needed. Recent Advances: The development of transgenic (tg) redox biosensor animal models has enhanced the knowledge of redox signaling under patho(physio)logical conditions. So far, commonly used small animal models, that is, Caenorhabditis elegans, Drosophila melanogaster, and Danio rerio, and genetically modified mice were employed for redox biosensor transgenesis. However, especially the available mouse models are still limited. CRITICAL ISSUES: The analysis of redox biosensor responses in vivo at the tissue level, especially for internal organs, is hampered by the detection limit of the available redox biosensors and microscopy techniques. Recent technical developments such as redox histology and the analysis of cell-type-specific biosensor responses need to be further refined and followed up in a systematic manner. FUTURE DIRECTIONS: The usage of tg animal models in the field of redox signaling has helped to answer open questions. Application of the already established models and consequent development of more defined tg models will enable this research area to define the role of redox signaling in (patho)physiology in further depth. Antioxid. Redox Signal. 29, 603 612. PMID- 29320871 TI - Can the mental health of Australians be improved by dual strategy for promotion and prevention? PMID- 29320872 TI - Correction to: Bai et al., Melatonin promotes self-renewal of nestin-positive pancreatic stem cells through activation of the MT2/ERK/SMAD/nestin axis. PMID- 29320873 TI - Does progressive nuclear staining with hemalum (alum hematoxylin) involve DNA, and what is the nature of the dye-chromatin complex? AB - Previous investigators have disagreed about whether hemalum stains DNA or its associated nucleoproteins. I review here the literature and describe new experiments in an attempt to resolve the controversy. Hemalum solutions, which contain aluminum ions and hematein, are routinely used to stain nuclei. A solution containing 16 Al3+ ions for each hematein molecule, at pH 2.0-2.5, provides selective progressive staining of chromatin without cytoplasmic or extracellular "background color." Such solutions contain a red cationic dye-metal complex and an excess of Al3+ ions. The red complex is converted to an insoluble blue compound, assumed to be polymeric, but of undetermined composition, when stained sections are blued in water at pH 5.5-8.5. Staining experiments with DNA, histone and DNA + histone mixtures support the theory that DNA, not histone, is progressively colored by hemalum. Extraction of nucleic acids, by either a strong acid or nucleases at near neutral pH, prevented chromatin staining by a simple cationic dye, thionine, pH 4, and by hemalum, with pH adjustments in the range, 2.0-3.5. Staining by hemalum at pH 2.0-3.5 was not inhibited by methylation, which completely prevented staining by thionine at pH 4. Staining by hemalum and other dye-metal complexes at pH <= 2 may be due to the high acidity of DNA phosphodiester (pKa ~ 1). This argument does not explain the requirement for a much higher pH to stain DNA with those dyes and fluorochromes not used as dye metal complexes. Sequential treatment of sections with Al2(SO4)3 followed by hematein provides nuclear staining that is weaker than that attainable with hemalum. Stronger staining is seen if the pH is raised to 3.0-3.5, but there is also coloration of cytoplasm and other materials. These observations do not support the theory that Al3+ forms bridges between chromatin and hematein. When staining with hematein is followed by an Al2(SO4)3 solution, there is no significant staining. Taken together, the results of my study indicate that the red hemalum cation is electrostatically attracted to the phosphate anion of DNA. The bulky complex cation is too large to intercalate between base pairs of DNA and is unlikely to fit into the minor groove. The short range van der Waals forces that bind planar dye cations to DNA probably do not contribute to the stability of progressive hemalum staining. The red cation is precipitated in situ as a blue compound, insoluble in water, ethanol and water-ethanol mixtures, when a stained preparation is blued at pH > 5.5. PMID- 29320869 TI - Challenges and Opportunities for Small-Molecule Fluorescent Probes in Redox Biology Applications. AB - SIGNIFICANCE: The concentrations of reactive oxygen/nitrogen species (ROS/RNS) are critical to various biochemical processes. Small-molecule fluorescent probes have been widely used to detect and/or quantify ROS/RNS in many redox biology studies and serve as an important complementary to protein-based sensors with unique applications. Recent Advances: New sensing reactions have emerged in probe development, allowing more selective and quantitative detection of ROS/RNS, especially in live cells. Improvements have been made in sensing reactions, fluorophores, and bioavailability of probe molecules. CRITICAL ISSUES: In this review, we will not only summarize redox-related small-molecule fluorescent probes but also lay out the challenges of designing probes to help redox biologists independently evaluate the quality of reported small-molecule fluorescent probes, especially in the chemistry literature. We specifically highlight the advantages of reversibility in sensing reactions and its applications in ratiometric probe design for quantitative measurements in living cells. In addition, we compare the advantages and disadvantages of small-molecule probes and protein-based probes. FUTURE DIRECTIONS: The low physiological relevant concentrations of most ROS/RNS call for new sensing reactions with better selectivity, kinetics, and reversibility; fluorophores with high quantum yield, wide wavelength coverage, and Stokes shifts; and structural design with good aqueous solubility, membrane permeability, low protein interference, and organelle specificity. Antioxid. Redox Signal. 29, 518-540. PMID- 29320874 TI - German Version of the Inventory of Motivations for Hospice Palliative Care Volunteerism: Are There Gender Differences? AB - The present study examined gender differences in motivations for volunteering for hospice using a German version of the Inventory of Motivations for Hospice Palliative Care Volunteerism (IMHPCV). The IMHPCV was translated into German and back-translated into English following the World Health Organization's guidelines for the translation and adaptation of instruments. In an online survey, 599 female and 127 male hospice volunteers from hospice organizations throughout Germany completed the translated version of the IMHPCV, the Scales of the Attitude Structure of Volunteers as well as questions pertaining to their volunteer experience. Based on an exploratory structural equation modeling approach, adequate model fit was found for the expected factor structure of the German version of the IMHPCV. The IMHPCV showed adequate internal consistency and construct validity. Both female and male hospice volunteers found altruistic motives and humanitarian concerns most influential in their decision to volunteer for hospice. Personal gain was least influential. Men rated self-promotion, civic responsibility, and leisure as more important than women. Analyses provided support for the use of the IMHPCV as a measurement tool to assess motivations to volunteer for hospice. Implications for recruitment and retention of hospice volunteers, in particular males, are given. PMID- 29320875 TI - Characterization of bacteriophages and their carriage in Staphylococcus aureus isolated from broilers in Poland. AB - 1. The objective of this study was the isolation and morphological characterization of temperate bacteriophages induced from Staphylococcus aureus strains isolated from clinical samples from broiler chickens and turkeys. 2. Eighty-five S. aureus strains were tested for susceptibility to oxacillin in order to determine which were methicillin resistant (MRSA). A total of 24 strains showed resistance to methicillin. 3. Thirty-one bacteriophages that were lytic against S. aureus strains were isolated and the host range of the bacteriophages was evaluated. Based on the presence of a specific nucleotide sequence, molecular identification of bacteriophages was performed and the presence of genes responsible for the production of classical enterotoxins (A-E) was also analysed. 4. All the isolated bacteriophages had an icosahedral head and a long, thin, non contractile flexible tail, characteristic of the family Siphoviridae of the order Caudovirales. Based on multiplex PCR results, the phages were found to belong to serogroups A, B and F (Fa, Fb subgroup), which include mostly temperate phages infecting S. aureus. 5. The titre of the phages ranged from 10-4 to 10-9 PFU/ml. The bacteriophages exhibited strong lytic properties against some of the strains of Staphylococcus. The broadest spectrum of activity against the strains was observed in the case of phages sa2, sa3, sa6, sa12, sa15 and sa21. 6. The PCR results showed that of the 31 bacteriophage DNA samples, 4 (12.9%) appeared to have enterotoxigenic genes. PMID- 29320876 TI - "It's not really worth my while": understanding contextual factors contributing to decisions to participate in community aphasia groups. AB - PURPOSE: Community aphasia groups represent a formalised opportunity for social participation. The potential barriers and facilitators to accessing and maintaining group participation remain poorly understood. The aim of this study was to explore environmental and personal factors contributing to community aphasia group participation. METHODS: A framework analysis (FA) was used to analyse the semi-structured interview data from 22 current and past members of community aphasia groups. RESULTS: People with aphasia weigh up the benefits of group participation in the context of a range of personal and environmental factors. These include personal coping mechanisms, perceptions of existing social support as well as the practicalities of accessing the group. CONCLUSIONS: Understanding factors that contribute to participation experiences is critical to ensure that, people with aphasia are well supported to access and engage in community aphasia groups. This study found that people may be more able to participate when they are accepting of the chronic nature of the aphasia, when they identify tangible benefits to participation, and when they have easy access to the group. This suggests a role for speech pathologists to recognise critical periods of need and support people with aphasia and their significant others to access and engage in group services. Implications for Rehabilitation Critical stages exist when people with aphasia may feel more ready and able to participate in community aphasia groups. These critical stages include an acceptance of the chronic nature of aphasia, as well as a desire to make positive change. There is a need for clinicians to minimise barriers to participation early in the therapeutic relationship. Proliferation of community aphasia groups will function to alleviate environmental barriers associated with poor public awareness of groups and group accessibility. PMID- 29320877 TI - "I'm still me - I'm still here!" Understanding the person's sense of self in the provision of self-management support for people with progressive neurological long-term conditions. AB - PURPOSE: There is increasing interest in tailoring self-management support, but little detail is available on the relevance and impact of such approaches for people with progressive neurological conditions. The aim of this study was to draw on individuals' experiences to inform the practice of self-management support for these groups. METHOD: Community rehabilitation service users were purposively recruited and took part in in-depth qualitative interviews. Interviews were audio-recorded and transcribed. Data analysis was iterative and interpretative, taking a phenomenological approach. Strategies to enhance rigor were auditability, peer review, and researcher reflexivity. RESULTS: The sample consisted of 10 adults (age 20-79 years) who were living with a range of progressive neurological conditions. Individuals demonstrated resourcefulness in developing practice-based self-management strategies. Beyond practical strategies, interviewees' experiences were signified by reflecting on and upholding a sense of identity and a desire for purpose against the background of losses and gains over time. Linking with this overarching theme of "Sense of self" were aspects of "My body and mind", "Time", "Space", "Relationships", and "What I do". CONCLUSIONS: Self-management approaches for individuals with progressive neurological conditions will benefit from incorporating ways of recognizing, articulating, and supporting the person's sense of identity and purpose. Implications for rehabilitation Self-management approaches for people with progressive neurological conditions need to take account of individuals' wishes to contribute, connect with others, and be valued as a person. Person centred self-management support can be realized through a broader approach than solely managing disease progression. The experiences and words of people with progressive neurological conditions can be used to inform meaningful evaluation of self-management support to drive service delivery by measuring what really matters. Rehabilitation practitioners need to adapt their conceptualisations of goal setting to account for how people with progressive neurological conditions themselves interpret "progress" and "improvement". Person-centred conversation that values who the person is can be an effective starting point for self management interventions in people with progressive neurological conditions. PMID- 29320878 TI - Exercise training for improving outcomes post-burns: a systematic review and meta analysis. AB - OBJECTIVES: To determine the effectiveness of different modalities of exercise and to evaluate the safety of exercise-based interventions post-burns. DATA SOURCES: Six databases were searched from inception to October 2017 using "burn," "exercise" and synonyms as keywords. Relevant authors, key journals and reference lists of included studies were hand-searched. REVIEW METHODS: Articles reporting on exercise interventions in patients post-burn and considering physical, physiological or psychological outcomes were considered. Two authors independently screened 2253 records and selected 19 articles for inclusion. The quality of the evidence was assessed at the study level and at the outcome level. RESULTS: Unbiased effect size estimators (pooled Hedges' g) with 95% confidence intervals (CIs) were calculated if there were two or more trials with homogeneous outcomes. There were no significant differences post-exercise training in VO2peak ( g = 0.99; 95% CI: -0.4 to 2.4: P = 0.18), resting energy expenditure ( g = 0.51; 95% CI: -1.99 to 0.97: P = 0.5) and muscle strength ( g = 0.51; 95% CI: 0.03 to 1.05: P = 0.07) between groups. Evidence suggested exercise had a beneficial effect on body composition ( g = 0.59; 95% CI: 0.05 to 1.14: P = 0.03), need of surgical release of contractures (risk ratio = 0.34; 95% CI: 0.2 to 0.7; P = 0.004) and health-related quality of life. However, a lack of evidence existed regarding the safety of exercise training post-burns. CONCLUSION: Limited evidence suggests that exercise has a beneficial effect on physical and physiological outcomes in patients post-burn. Further trials using high-quality methodology are required, with focus on reporting of adverse events, health-related quality of life and psychological outcomes. PMID- 29320879 TI - Isolation and purification of diterpenoids from the aerial parts of Isodon excisoides target-guided by UPLC-LTQ-Orbitrap-MS. AB - Cytotoxic diterpenoids were enriched and orientation prepared from the aerial parts of Isodon excisoides target-guided by UPLC-LTQ-Orbitrap-MS. Four diterpenoids were obtained, including a novel compound: 1alpha-acetoxy-7alpha, 14beta, 20alpha-trihydroxy-ent-kaur-16-en-15-one (1); together with three known compounds kamebakaurin (2), lasiokaurin (3), enmenol-1-beta-glucoside (4). Their structures were elucidated on the basis of spectroscopic methods in conjunction with published data for their analogues. All compounds were tested for their cytotoxic effects against five human cancer cell lines HCT-116, HepG2, A2780, NCI H1650 and BGC-823, respectively. Compounds 1 and 2 showed obviously cytotoxic activity against the five cancer cell lines with IC50 ranging from 1.06 to 3.60 MUM. Compounds 3 and 4 showed selective cytotoxic activity. PMID- 29320880 TI - Gas-phase relative stabilities of Tl+-crown ether complexes and Rb+-crown ether complexes. AB - The gas-phase stabilities of Tl+-crown ether complexes and Rb+-crown ether complexes were studied using the electrospray ionization-collision-induced dissociation-tandem mass spectrometry. Tl+ and Rb+ have identical ionic radii, thus a comparison of the properties of the crown ether complexes with these two cations seems to be justified. The selected crown ethers were 12C4 (it has a cavity smaller than the cation radius), 18C6 (it has a cavity of size similar to the cation radius), 24C8 (it has a cavity greater than the cation radius) and their conjugates. It has been found that the crown ether complexes of stoichiometry 1:1 with Tl+ are more or equally stable in the gas phase than the crown ether complexes with Rb+. However, 2:1 complexes with Tl+ are less stable than the complexes with Rb+. PMID- 29320881 TI - Masculinity and preventing falls: insights from the fall experiences of men aged 70 years and over. AB - PURPOSE: To explore men's fall experiences through the lens of masculine identities so as to assist health professionals better engage men in fall prevention programs. METHODS: Twenty-five men, aged 70-93 years who had experienced a recent fall, participated in a qualitative semi-structured interview. Men's willingness to engage in fall prevention programs taking account of individual contexts and expressions of masculinity, were conceptualised using constant comparative methods. RESULTS: Men's willingness to engage in fall prevention programs was related to their perceptions of the preventability of falls; personal relevance of falls; and age, health, and capability as well as problem-solving styles to prevent falls. Fall prevention advice was rarely given when men accessed the health system at the time of a fall. CONCLUSIONS: Contrary to dominant expectations about masculine identity, many men acknowledged fall vulnerability indicating they would attend or consider attending, a fall prevention program. Health professionals can better engage men by providing consistent messages that falls can be prevented; tailoring advice, understanding men are at different stages in their awareness of fall risk and preferences for action; and by being aware of their own assumptions that can act as barriers to speaking with men about fall prevention. Implications for rehabilitation Men accessing the health system at the time of the fall, and during rehabilitation following a fall represent prime opportunities for health professionals to speak with men about preventing falls and make appropriate referrals to community programs. Tailored advice will take account of individual men's perceptions of preventability; personal relevance; perceptions of age, health and capability; and problem-solving styles. PMID- 29320882 TI - The impact of influenza virus infection in pregnancy. AB - Data from previous seasonal epidemics and pandemics have confirmed that pregnant women are at increased risk for severe influenza virus infection. Complications including fetal loss, higher rates of hospitalization and maternal death are most notable during the late gestational period. Antiviral therapy and influenza vaccination are recommended in pregnant women as both are effective and safe. This review discusses the epidemiology, pathophysiology, treatment and prevention of influenza virus infection in pregnancy, with a focus on recent developments. PMID- 29320883 TI - The prevalence of oral stage dysphagia in adults presenting with temporomandibular disorders: a systematic review and meta-analysis. AB - OBJECTIVE: Temporomandibular disorders (TMDs) are the most commonly experienced non-dental orofacial pain disorders, with pain and dysfunction potentially resulting in oral stage dysphagia (OD). However, limited research has been conducted on this condition, with potential negative effects on clinical practice. Therefore, the aim of this study was to determine the prevalence of OD in adults presenting with TMDs, diagnosed as per the Research Diagnostic Criteria for Temporomandibular Disorders or the Diagnostic Criteria for Temporomandibular Disorders protocols. MATERIAL AND METHODS: A systematic review of the literature was completed. Nine electronic databases were searched from inception to January 2017, with no date/language restriction applied. Grey literature, conference proceedings, and reference lists were also searched. Studies presenting original data regarding OD prevalence in adults presenting with TMDs were included if they investigated impaired swallowing, mastication, masticatory pain or fatigue, or weight loss. Study eligibility and quality were assessed by two independent reviewers. Methodological quality was assessed using the Down's and Black tool. RESULTS AND CONCLUSIONS: This search yielded 20 eligible studies. Swallowing itself was impaired in only 9.3% of patients with TMDs. A range of additional OD signs and symptoms were also commonly reported (e.g. masticatory pain (87.4%) and fatigue (62%)). Study limitations included the small number of studies which were eligible for inclusion. As signs and symptoms of OD are frequently reported by patients with TMDs, psychometrically robust prospective research is warranted to determine current and optimal management of this condition. PMID- 29320884 TI - Correlation Between Third Trimester Glycemic Variability in Non-Insulin-Dependent Gestational Diabetes Mellitus and Adverse Pregnancy and Fetal Outcomes. AB - BACKGROUND: Gestational diabetes mellitus (GDM) is a pregnancy-related metabolic complication. Despite optimal glycemic control from self-monitoring blood glucose (SMBG) in non-insulin-dependent GDM, variations in pregnancy outcomes persist. Glycemic variability is believed to be a factor that causes adverse pregnancy outcomes. Continuous glucose monitoring system (CGMS) detects interstitial glucose values every 5 minutes, and glycemic variability data from CGMS during the third trimester may be a predictor of fetal birth weight and pregnancy outcomes. The aim of this study was to investigate correlation between third trimester glycemic variability in non-insulin-dependent GDM and fetal birth weight. METHOD: This prospective study was conducted in 55 pregnant volunteers with non-insulin-dependent GDM that were recruited at 28 to 32 weeks' gestation from the outpatient clinic of the Department of Obstetrics and Gynecology, Faculty of Medicine Siriraj Hospital during the study period of August 1 to December 31, 2016. Patients had CGMS installed for at least 72 hours and glycemic variability data were analyzed. RESULTS: Of 55 enrolled volunteers, the data from 47 women were included in the analysis. Mean CGMS duration was 85.5 +/- 12.83 hours. No statistically significant correlation was identified between glycemic variability in third trimester and birth weight percentiles, or between third trimester CGMS parameters and pregnancy outcomes in the study. CONCLUSION: Based on these findings, third trimester glycemic variability data from CGMS are not a predictor of fetal birth weight percentile, and no significant association was found between CGMS parameters and adverse pregnancy outcomes; thus, CGMS is not necessary in non-insulin-dependent GDM. PMID- 29320885 TI - A Pilot Study Validating Select Research-Grade and Consumer-Based Wearables Throughout a Range of Dynamic Exercise Intensities in Persons With and Without Type 1 Diabetes: A Novel Approach. AB - BACKGROUND: The increasing popularity of wearable technology necessitates the evaluation of their accuracy to differentiate physical activity (PA) intensities. These devices may play an integral role in customizing PA interventions for primary prevention and secondary management of chronic diseases. For example, in persons with type 1 diabetes (T1D), PA greatly affects glucose concentrations depending on the intensity, mode (ie, aerobic, anaerobic, mixed), and duration. This variability in glucose responses underscores the importance of implementing dependable wearable technology in emerging avenues such as artificial pancreas systems. METHODS: Participants completed three 40-minute, dynamic non-steady state exercise sessions, while outfitted with multiple research (Fitmate, Metria, Bioharness) and consumer (Garmin, Fitbit) grade wearables. The data were extracted according to the devices' maximum sensitivity (eg, breath by breath, beat to beat, or minute time stamps) and averaged into minute-by-minute data. The variables of interest, heart rate (HR), breathing frequency, and energy expenditure (EE), were compared to validated criterion measures. RESULTS: Compared to deriving EE by laboratory indirect calorimetry standard, the Metria activity patch overestimates EE during light-to-moderate PA intensities (L-MI) and moderate-to-vigorous PA intensities (M-VI) (mean +/- SD) (0.28 +/- 1.62 kilocalories. minute-1, P < .001, 0.64 +/- 1.65 kilocalories. minute-1, P < .001, respectively). The Metria underestimates EE during vigorous-to-maximal PA intensity (V-MI) (-1.78 +/- 2.77 kilocalories . minute-1, P < .001). Similarly, compared to Polar HR monitor, the Bioharness underestimates HR at L-MI (-1 +/- 8 bpm, P < .001) and M-VI (5 +/- 11 bpm, P < .001), respectively. A significant difference in EE was observed for the Garmin device, compared to the Fitmate ( P < .001) during continuous L-MI activity. CONCLUSIONS: Overall, our study demonstrates that current research-grade wearable technologies operate within a ~10% error for both HR and EE during a wide range of dynamic exercise intensities. This level of accuracy for emerging research-grade instruments is considered both clinically and practically acceptable for research-based or consumer use. In conclusion, research-grade wearable technology that uses EE kilocalories . minute-1 and HR reliably differentiates PA intensities. PMID- 29320886 TI - Contribution of preventive methods in controlling caries among Saudi primary schoolchildren: a population-based cross-sectional study. AB - OBJECTIVE: This study assessed the association between caries preventive measures including regular dental checkups, twice a day tooth brushing using fluoridated toothpaste and pit and fissure sealants on one side and the presence of caries among primary schoolchildren in the Eastern Province of Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was conducted in 2016 including 1198, 6-12 year-old children from 13 randomly selected schools. The outcome variable was caries presence. The explanatory variables were brushing twice a day using fluoridated toothpaste, the presence of sealant and regular dental checkups. Multivariable logistic regression model was conducted to assess the associations controlling for confounders (age, gender, ability to get treatment, being health insured and school) using SPSS version 20.0. RESULTS: Data of 921 participants (83.8%) were available. The prevalence of caries was 63.5%, whereas 67.6% brushed their teeth twice a day, 28.3% visited the dentist for regular checkups and 7.6% had sealant. In multivariable regression, out of the three main explanatory variables, only having regular checkups was significantly associated with caries presence (OR = 0.65, 95% CI = 0.48, 0.88). CONCLUSIONS: Lower odds of caries presence were associated with regular dental checkups but not with regular brushing or having sealant. PMID- 29320887 TI - Transducing Airway Basal Cells with a Helper-Dependent Adenoviral Vector for Lung Gene Therapy. AB - A major challenge in developing gene-based therapies for airway diseases such as cystic fibrosis (CF) is sustaining therapeutic levels of transgene expression over time. This is largely due to airway epithelial cell turnover and the host immunogenicity to gene delivery vectors. Modern gene editing tools and delivery vehicles hold great potential for overcoming this challenge. There is currently not much known about how to deliver genes into airway stem cells, of which basal cells are the major type in human airways. In this study, helper-dependent adenoviral (HD-Ad) vectors were delivered to mouse and pig airways via intranasal delivery, and direct bronchoscopic instillation, respectively. Vector transduction was assessed by immunostaining of lung tissue sections, which revealed that airway basal cells of mice and pigs can be targeted in vivo. In addition, efficient transduction of primary human airway basal cells was verified with an HD-Ad vector expressing green fluorescent protein. Furthermore, we successfully delivered the human CFTR gene to airway basal cells from CF patients, and demonstrated restoration of CFTR channel activity following cell differentiation in air-liquid interface culture. Our results provide a strong rationale for utilizing HD-Ad vectors to target airway basal cells for permanent gene correction of genetic airway diseases. PMID- 29320888 TI - Comparative studies with EPR and MRI on the in vivo tissue redox status estimation using redox-sensitive nitroxyl probes: influence of the choice of the region of interest. AB - In vivo decay rates of a nitroxyl contrast agent were estimated by a MR redox imaging (MRRI) technique and compared with the decay rates obtained by the electron paramagnetic resonance spectroscopy (EPRS) and imaging (EPRI). MRRI is a dynamic imaging technique employing T1-weighted pulse sequence, which can visualise a nitroxyl-induced enhancement of signal intensity by T1-weighted contrast. EPR techniques can directly measure the paramagnetic nitroxyl radical. Both the squamous cell carcinoma (SCC) tumour-bearing and normal legs of a female C3H mouse were scanned by T1-weighted SPGR sequence at 4.7 T with the nitroxyl radical, carbamoyl-proxyl (CmP), as the contrast agent. Similarly, the time course of CmP in normal muscle and tumour tissues was obtained using a 700-MHz EPR spectrometer with a surface coil. The time course imaging of CmP was also performed by 300 MHz CW EPR imager. EPRS and EPRI gave slower decay rates of CmP compared to the MRRI. Relatively slow decay rate at peripheral region of the tumour tissues, which was found in the image obtained by MRRI, may contribute to the slower decay rates observed by EPRS and/or the EPRI measurements. To reliably determine the tissue redox status from the reduction rates of nitroxyls such as CmP, heterogenic structure in the tumour tissue must be considered. The high spatial and temporal resolution of T1-weighted MRI and the T1-enhancing capabilities of nitroxyls support the use of this method to map tissue redox status which can be a useful biomarker to guide appropriate treatments based on the tumour microenvironment. PMID- 29320889 TI - The cardiovascular effect of incretin-based therapies among type 2 diabetes: a systematic review and network meta-analysis. AB - OBJECTIVE: To evaluate the comparative cardiovascular safety of incretin-based therapies in patients with type 2 diabetes mellitus (T2DM). METHODS: Medline, Embase, the Cochrane Library and www.clinicaltrials.gov were searched for randomized controlled trials (RCTs) with duration>=12 weeks. Network meta analysis was performed, followed by subgroup analysis and meta-regression. The Grading of Recommendations Assessment, Development and Evaluation system was used to assess the quality of evidence. The outcome of interest was a composite of cardiovascular death, myocardial infarction, stroke and heart failure. Odds ratio (OR) with 95% confidence interval (CI) was calculated as the measure of effect size. RESULTS: 281 RCTs (76.9% double-blinded) with 180,000 patients were included, comparing incretin-based therapies with other six classes of anti diabetic drugs or placebo. A statistically significant reduction in the risk of cardiovascular events was found in favour of GLP-1RAs when compared with placebo (OR 0.89, 95%CI: 0.80-0.99) and sulfonylurea (OR 0.76, 95%CI: 0.59-0.99), whereas DPP-4 inhibitors showed a neutral effect compared with placebo (OR 0.92, 95%CI: 0.83-1.01). CONCLUSIONS: Incretin-based therapies show similar cardiovascular risk in comparison with metformin, insulin, thiazolidinediones, alpha-glucosidase inhibitor and sodium-glucose co-transporter 2. GLP-1RA could decrease the risk compared with sulfonylurea or placebo, while DPP-4I appears to have neutral effect on cardiovascular risk. PMID- 29320891 TI - The political economy of the assessment of value of new health technologies. AB - Health technology assessment provides a common framework for evaluating the costs and benefits of new health technologies to inform decisions on the public funding of new pharmaceuticals and other health technologies. In Australia and England, empirical analyses of the opportunity costs of government spending on new health technologies suggest more quality adjusted life years are being forgone than are being gained by a non-trivial proportion of funded health technologies. This essay considers the relevance of available empirical estimates of opportunity costs and explores the relationship between the public funding of health technologies and broader political and economic factors. We conclude that the benefits of a general reduction in the prices paid by governments for new technologies outweigh the costs, but evidence of informed public acceptance of reduced access to new health technologies may be required to shift the current approach to assessing the value of new health technologies. PMID- 29320890 TI - Chimeric Antigen Receptors in Different Cell Types: New Vehicles Join the Race. AB - Adoptive cellular therapy has evolved into a powerful force in the battle against cancer, holding promise for curative responses in patients with advanced and refractory tumors. Autologous T cells, reprogrammed to target malignant cells via the expression of a chimeric antigen receptor (CAR) represent the frontrunner in this approach. Tremendous clinical regressions have been achieved using CAR-T cells against a variety of cancers both in numerous preclinical studies and in several clinical trials, most notably against acute lymphoblastic leukemia, and resulted in a very recent United States Food and Drug Administration approval of the first CAR-T-cell therapy. In most studies CARs are transferred to conventional alphabetaT cells. Nevertheless, transferring a CAR into different cell types, such as gammadeltaT cells, natural killer cells, natural killer T cells, and myeloid cells has yet received relatively little attention, although these cell types possess unique features that may aid in surmounting some of the hurdles CAR-T-cell therapy currently faces. This review focuses on CAR therapy using effectors beyond conventional alphabetaT cells and discusses those strategies against the backdrop of developing a safe, powerful, and durable cancer therapy. PMID- 29320892 TI - The effect of the global financial crisis on preventable hospitalizations among the homeless in New York State. AB - Objective Periods of economic instability may increase preventable hospitalizations because of increased barriers to accessing primary care. For underserved populations such as the homeless, these barriers may be more pronounced due to limited resources in the health care safety net. This study examined the impact of the global financial crisis of 2007-2008 on access to care for the homeless in New York State. Methods Hospitalizations for ambulatory care sensitive conditions (ACSCs) were used as a proxy measure for primary care access. Admissions for ACSCs were identified in the New York State Inpatient Database from 2006 to 2012. Hospitalization rates for ACSCs were calculated for the homeless and nonhomeless. Multivariable linear regression was used to investigate the impact of the financial crisis on hospitalization rates for ACSCs. Results The findings indicate that during the financial crisis, homeless adults had significantly higher preventable hospitalizations than nonhomeless adults, and the uninsured homeless had significantly higher preventable hospitalizations when compared to other homeless subgroups. After the financial crisis, preventable hospitalizations for the homeless stabilized but remained at higher rates than those for the nonhomeless. Conclusions These findings are important to developing health policies designed to provide effective care for underserved population such as the homeless. PMID- 29320893 TI - Current Status of Nonviral Vectors for Gene Therapy in China. AB - With the growing interest in application of nonviral vectors for drug delivery, diagnosis, and imaging, progress has been made in the field of nonviral vector gene therapy in China. Nanobiotechnology studies are important to the development plan for China's research priorities in the 21st century; the National 973 Plan and "Strategic Priority Research Program" classify nanobiotechnology as a special project and give priority to supporting its development. From 2000 to 2017, many articles on nonviral vector gene therapy were published, and cancer gene therapy is one of the most active and important gene therapy research fields. Although the use of nonviral vectors for gene therapy faces enormous problems, Chinese scientists have also begun to realize both the challenges and opportunities that lie ahead. However, a nonviral gene therapy drug has yet to be approved for sale. Therefore, more work is needed in this field. The present review examines the progress and challenges of nonviral gene therapy in China. Efforts to optimize nonviral vectors with structural modifications and gene delivery systems are described, and clinical translation challenges are highlighted. PMID- 29320894 TI - Biomarkers of tumour redox status in response to modulations of glutathione and thioredoxin antioxidant pathways. AB - The ability of certain cancer cells to maintain a highly reduced intracellular environment is correlated with aggressiveness and drug resistance. Since the glutathione (GSH) and thioredoxin (TRX) systems cooperate to a tight regulation of ROS in cell physiology, and to a stimulation of tumour initiation and progression, modulation of the GSH and TRX pathways are emerging as new potential targets in cancer. In vivo methods to assess changes in tumour redox status are critically needed to assess the relevance of redox-targeted agents. The current study assesses in vitro and in vivo biomarkers of tumour redox status in response to treatments targeting the GSH and TRX pathways, by comparing cytosolic and mitochondrial redox nitroxide electron paramagnetic resonance (EPR) probes, and cross-validation with redox dynamic fluorescent measurement. For that purpose, the effect of the GSH modulator buthionine sulfoximine (BSO) and of the TRX reductase inhibitor auranofin were measured in vitro using both cytosolic and mitochondrial EPR and roGFP probes in breast and cervical cancer cells. In vivo, mice bearing breast or cervical cancer xenografts were treated with the GSH or TRX modulators and monitored using the mito-TEMPO spin probe. Our data highlight the importance of using mitochondria-targeted spin probes to assess changes in tumour redox status induced by redox modulators. Further in vivo validation of the mito-tempo spin probe with alternative in vivo methods should be considered, yet the spin probe used in vivo in xenografts demonstrated sensitivity to the redox status modulators. PMID- 29320895 TI - Effects of telephone support on exercise capacity and quality of life in patients with chronic obstructive pulmonary disease: a meta-analysis. AB - The aim of this meta-analysis was to evaluate the effects of disease education or pulmonary rehabilitation programs assisted with telephone support on physical capacity and quality of life (QOL) in chronic obstructive pulmonary disease (COPD) patients. A systematic search of PubMed, Embase, Web of Science and The Cochrane Library was conducted until May 2017. Randomized controlled trials (RCTs) examining the effects of telephone-assisted intervention versus a control group on exercise tolerance and QOL in patients with COPD were included. Two independent authors assessed the methodological quality of the trials using the Cochrane risk of bias tool. A meta-analysis was conducted with the Revman5.3 to quantify the effects of telephone-assisted interventions on walking capacity and QOL. In total, 10 studies involving 1037 participants were included. Due to the effect of telephone-assisted interventions, statistically significant results were found on Saint-George's Respiratory Questionnaire (SGRQ) symptom scores [standard mean difference (SMD) -.18, 95% confidence interval (CI) -.33, -.03, p value .02)], SGRQ impact scores [SMD -.35, 95% CI -.60, -.10, p-value .006)], SGRQ activity scores [SMD -.30, 95% CI -.45, -.15, p-value < .0001)], SGRQ total score [SMD -.36, 95% CI -.51, -.21, p-value < .00001)]. The effects on 6-min walk test (6MWT) and all Chronic Respiratory Questionnaire (CRQ) subscales were not significant (p > .05) based on the insufficient evidence. In conclusion, the role of telephone-assisted interventions in the management of COPD remains equivocal. Some encouraging results were seen with regard to SGRQ symptom, SGRQ impact, SGRQ activity and SGRQ total score. We believe that more methodologically rigorous large-scale randomized controlled trials are necessary to answer this study question. PMID- 29320896 TI - Mortality rate and oral health - a cohort study over 44 years in the county of Stockholm. AB - OBJECTIVE: To study the association between oral health and all-cause mortality rate over 44 years. In addition, the specific relations between oral health and death caused by cardiovascular disease (CVD), cancer or other reasons were investigated. MATERIALS AND METHODS: An epidemiological investigation studying the oral health of the population consisting of 1393 randomly selected subjects was performed in the County of Stockholm. The individuals were invited to a clinical examination, an interview and a radiographic examination. The incidence of mortality during the years 1970-2014 as well as the causes of death according to the death certificate were registered in 2015. Cox regression survival analysis was used for investigating the effect of several variables upon the time to the outcome of death. RESULTS: Forty-six percent of the subjects were still alive at the end of the year 2014. Cancers caused 27% of the deaths, while 22% died due to CVD. The mortality risk was positively and significantly correlated to oral health when compensated for age, sex, smoking and social status. In addition, the mortality risk caused by CVD, cancer or other reasons was significantly increased for those with poor oral health. CONCLUSIONS: Oral health was found to be a risk indicator of death caused by CVD and cancer as well as for all-cause mortality. Thus, the associations are unspecific. Harmful lifestyle factors impact dental health behavior as well as mortality risk. This might contribute to the association between oral health and mortality risk. PMID- 29320897 TI - Changes in resting motor threshold of the tongue with normal aging and stroke. AB - AIM OF STUDY: To examine the resting motor threshold of the tongue in healthy adults and stroke survivors. METHODS: Thirty-five healthy adults were classified into three groups: Group 1 (19-38 years; n = 11), Group 2 (50-64 years; n = 12) and Group 3 (66-78 years; n = 12). Six chronic stroke survivors (mean age =59 years, SD = 9.1 years) were recruited (Group 4). The resting motor thresholds (RMTs) of the tongue were measured and compared (i) among the four groups and (ii) between stroke survivors and age-matched healthy adults. RESULTS: Group 3 showed significantly higher RMTs than Group 1 (p = .001) and 2 (p = 0.007). Group 4 showed significantly higher RMTs than Group 1 (p = .003) and 2 (p = .001). The RMTs of Group 3 and 4 were not significantly different (p = .385). The RMT was positively correlated with age (r = 0.534; p = .001). Group 4 showed significantly higher RMTs than the age-matched controls (U = 2.5, p = .009, r = 0.77). CONCLUSIONS: The resting motor threshold of the tongue is significantly increased in adults aged above 65 and in stroke survivors when compared with healthy adults. The findings suggested that the cortical excitability of the tongue deteriorates in the elderly and the stroke population. PMID- 29320898 TI - Did I Miss It? Discovering Hidden Coexisting Hematological Neoplasms: A Single Institutional Review of 100 Collision Tumors. AB - A collision tumor is defined as two histologically distinct tumor types identified at the same anatomic site. Hematolymphoid proliferative disorders (HLPDs), which coincide with non-hematological neoplasms, can mimic an immune response and can easily be overlooked as an immune reaction to a solid organ neoplasm, especially when low grade. In order to avoid a delay in the diagnosis of a HLPD during the workup for a non-hematological neoplasm, we identified a cohort of 100 cases with a HLPD diagnosis during the initial workup and treatment of a non-hematological neoplasm, or vice versa. Among the 100 collision tumors, the most common non-hematological neoplasms associated with a HLPD were from the colon (17%), breast (15%), and prostate (12%). The most commonly identified HLPDs were chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL; 18%), diffuse large B-cell lymphoma (17%), follicular lymphoma (14%), marginal zone lymphoma (10%), acute myeloid leukemia (8%), and classical Hodgkin lymphoma (5%). Interestingly, in this cohort 5% of the low-grade HLPDs, all of them CLL/SLL, were missed at initial sign-out and subsequently required an addendum report. The other 95% of cases were reviewed or signed out by a hematopathologist before the report was finalized for the non-hematological neoplasm. In summary, high-grade hematological malignancies are less likely to be missed; however, low-grade coexisting HLPDs can be overlooked as a reactive immune response to a solid organ neoplasm. Therefore, it is important to keep in mind the existence of collision low-grade HLPDs before assuming the lymphoid infiltrates as an immunological response. PMID- 29320899 TI - In vitro analysis of itraconazole cis-diastereoisomers inhibition of nine cytochrome P450 enzymes: stereoselective inhibition of CYP3A. AB - 1. Itraconazole (ITZ), an antifungal azole derivate is a chiral drug that consists of four cis-diastereoisomers ((+)-2R,4S,2'R-ITZ-A; (+)-2R,4S,2'S-ITZ-B; (-)-2S,4R,2'S-ITZ-C and (-)-2S,4R,2'R-ITZ-D) which may differ in their pharmacokinetics and pharmacodynamics. 2. As ITZ is known as a CYP3A4 inhibitor causing severe drug-drug interaction, the inhibitory potencies of its individual optical isomers towards nine drug-metabolising cytochrome P450 (including CYP3A, CYP1A2, CYP2A6, CYP2B6, CYP2C8, CYP2C9, CYP2C19, CYP2D6 and CYP2E1), were investigated. 3. All ITZ diastereoisomers dose-dependently inhibited CYP3A activity in both used assays, midazolam and testosterone hydroxylation. The Ki values were assessed: for testosterone ITZ-A/0.085 uM; ITZ-B/0.91 uM, ITZ-C/0.20 uM and ITZ-D/0.022 uM; for midazolam ITZ-A/0.44 uM; ITZ-B/0.48 uM, ITZ-C/1.56 uM and ITZ-D/3.48 uM. The enzyme activity of CYP2C19 was moderately inhibited (IC50 30-53 uM), but in this case without large differences between the individual optical isomers. 4. The significant differences between diastereoisomers were presented. Antifungal potency of ITZ stereoisomers also differs so the potential enantiopure preparations of ITZ was not of interest. PMID- 29320901 TI - If we keep doing what we're doing we'll keep getting what we're getting: A need to rethink "academic" medicine. AB - PURPOSE: For generations there have been warnings of the need to reform medical education at all levels. Today the voices pushing reform are louder, the need is greater, and there is an urgency not seen before. Approaches that have worked in the past to train physicians are no longer as relevant today as demographics, disease patterns, human resources, practice behaviors, technology, and attention to costs demand new collaborative approaches to clinical practice. To prepare for this practice tomorrow's doctors will need a different type of educational model, a different type of learning, in different environments, often taught by different faculty. This paper provides one innovative approach to redefine "academic medicine". METHODS: After reviewing current trends in medical education, this paper describes one approach being taken by a large nonprofit American health care system to move medical education and discovery (research) out of traditional academic universities and placing it within a health care delivery system. CONCLUSIONS: The creation of a learning laboratory in a high functioning health care delivery system allows for leveraging the successes in quality health care delivery to transform medical education with a focus on prevention, improving health care quality, reducing disparities in health, and promoting practical evidence-based clinical and outcomes focused research. PMID- 29320900 TI - Societal costs of multiple sclerosis in Ireland. AB - AIMS: This paper evaluates the impact of multiple sclerosis (MS) in Ireland, and estimates the associated direct, indirect, and intangible costs to society based on a large nationally representative sample. MATERIALS AND METHODS: A questionnaire was developed to capture the demographics, disease characteristics, healthcare use, informal care, employment, and wellbeing. Referencing international studies, standardized survey instruments were included (e.g. CSRI, MFIS-5, EQ-5D) or adapted (EDSS) for inclusion in an online survey platform. Recruitment was directed at people with MS via the MS Society mailing list and social media platforms, as well as in traditional media. The economic costing was primarily conducted using a 'bottom-up' methodology, and national estimates were achieved using 'prevalence-based' extrapolation. RESULTS: A total of 594 people completed the survey in full. The sample had geographic, disease, and demographic characteristics indicating good representativeness. At an individual level, average societal cost was estimated at ?47,683; the average annual costs for those with mild, moderate, and severe MS were calculated as ?34,942, ?57,857, and ?100,554, respectively. For a total Irish MS population of 9,000, the total societal costs of MS amounted to ?429m. Direct costs accounted for just 30% of the total societal costs, indirect costs amounted to 50% of the total, and intangible or QoL costs represented 20%. The societal cost associated with a relapse in the sample is estimated as ?2,438. LIMITATIONS AND CONCLUSIONS: The findings highlight that up to 70% of the total costs associated with MS are not routinely counted. These "hidden" costs are higher in Ireland than the rest of Europe, due in part to significantly lower levels of workforce participation, a higher likelihood of permanent workforce withdrawal, and higher levels of informal care needs. The relationship between disease progression and costs emphasize the societal importance of managing and slowing the progression of the illness. PMID- 29320902 TI - CD33 splicing SNP regulates expression levels of CD33 in normal regenerating monocytes in AML patients. PMID- 29320904 TI - Free first dorsal metatarsal artery perforator flap for multiple finger defects reconstruction: a case report. PMID- 29320903 TI - Air Pollution and Human Sperm Sex Ratio. AB - The present study was designed to address the hypothesis that exposure to specific air pollutants may impact human sperm Y:X chromosome ratio. The study population consisted of 195 men who were attending an infertility clinic for diagnostic purposes and who had normal semen concentration of 15-300 mln/ml (WHO, 2010). Participants represented a subset of men in a multicenter parent study conducted in Poland to evaluate environmental factors and male fertility. Participants were interviewed and provided a semen sample. The Y:X ratio was assessed by fluorescent in situ hybridization (FISH). Air quality data were obtained from the AirBase database. In multivariate analysis the significant reduction was observed in the proportion of Y/X chromosome bearing sperm and exposure to particulate matter >10 MUm in aerodynamic diameter PM10 ( p = .009) and particulate matter <10 MUm in aerodynamic diameter PM2.5 ( p = .023). The observed effects of a lower Y:X sperm chromosome ratio among men exposed to air pollution support the evidence that the trend of declining sex ratio in several societies over past decades has been due to exposure to air pollution; however due to limited data on this issue, the obtained results should be confirmed in longitudinal studies. PMID- 29320905 TI - Mid- to long-term outcomes of collateral ligament repairs of 18 metacarpophalangeal joints with bone suture anchors. PMID- 29320906 TI - A bifid reversed palmaris longus muscle causing median nerve compression in a child. PMID- 29320907 TI - A single injection metacarpal block of the second digital ray: an easy, efficient and patient friendly technique. PMID- 29320908 TI - Psychiatric diagnoses and their influencing factors in patients complaining of sleep problems: A study of a psychiatric consultation-liaison service. AB - Objective This study aimed to identify misdiagnosed or undiagnosed psychiatric disorders and the factors associated with these disorders in patients with sleep problems who are referred to a consultation-liaison service. Method Records of all inpatients receiving a consultation from the Psychiatry Department between January and December 2016 were retrospectively reviewed. Psychiatric diagnoses were analyzed using descriptive statistics, and the factors associated with the risk of these disorders in patients with sleep problems were determined by multiple logistic regression analysis. Results Of the 331 referral patients whose referral reason was simply having trouble in sleeping, only 97 patients were diagnosed with primary sleep disorder after consultation. The recognition rate of psychiatric disorders in inpatients with sleep problems among nonpsychiatric physicians was 29.3%. Anxiety (107, 45.7%) was the most common psychiatric diagnosis in patients with sleep problems followed by organic mental disorder (83, 35.5%), depression (37, 15.8%), and other mental disorders (8, 3.4%). Multiple logistic regression analysis revealed that a course >1 month (OR = 3.656, 95% CI = 2.171-6.156, p = 0.000) and sleep-wake rhythm disturbances (OR = 25.008, 95% CI = 5.826-107.341, p = 0.000) were associated with increased risks of psychiatric disorders. Conclusions The study showed that recognition rate of psychiatric disorders in inpatients with sleep problems was very low. A course >1 month and sleep-wake rhythm disturbances were associated with increased risks of disorders and could be used as indicators by nonpsychiatric physicians to improve diagnoses. PMID- 29320909 TI - Vascularization of Lando(r) dermal scaffold in an acute full-thickness skin defect porcine model. AB - The Lando(r) dermal scaffold is a newly developed, tissue-engineered dermal scaffold material. This study sought to observe its vascularization in an acute full-thickness skin-defect porcine model. There were eight Tibetan pigs in this research. Six 5 * 5 cm full-thickness skin-defect wounds were prepared on the dorsal area of each pig, which were divided into two groups. The experimental group wounds were covered by Lando(r) dermal scaffolds, while the other received Vaseline gauzes as blank control. At day 3, 7, 14 and 21 after injury, the general condition of wounds was observed, and wound specimens were obtained for HE staining, Masson staining and the expression of CD31, alpha-SMA and VEGF, which were examined by immunohistochemistry. The results showed the wounds in the experimental group (Lando) were drier with a lower incidence of infection, and the granulation tissues grew better and smoother than the control group. In the experimental group, the hyperemia, edema and inflammatory reactions were milder, the fibroblasts ingrew earlier, the capillaries grew mostly parallel to the wound surface which resembled normal skin, and the collagen fibers were thicker with more regular arrangement than in the control group. The CD31 + microvessel count, alpha-SMA + microvessel count and VEGF expression of the experimental group were significantly higher than the control group at day 7 and 14 after injury (p < .05). In conclusion, the Lando(r) dermal scaffold showed good vascularization at day 14 post grafting in an acute full-thickness skin-defect porcine model, which may be associated with increased expression of VEGF. PMID- 29320910 TI - Predicting and explaining inflammation in Crohn's disease patients using predictive analytics methods and electronic medical record data. AB - Crohn's disease is among the chronic inflammatory bowel diseases that impact the gastrointestinal tract. Understanding and predicting the severity of inflammation in real-time settings is critical to disease management. Extant literature has primarily focused on studies that are conducted in clinical trial settings to investigate the impact of a drug treatment on the remission status of the disease. This research proposes an analytics methodology where three different types of prediction models are developed to predict and to explain the severity of inflammation in patients diagnosed with Crohn's disease. The results show that machine-learning-based analytic methods such as gradient boosting machines can predict the inflammation severity with a very high accuracy (area under the curve = 92.82%), followed by regularized regression and logistic regression. According to the findings, a combination of baseline laboratory parameters, patient demographic characteristics, and disease location are among the strongest predictors of inflammation severity in Crohn's disease patients. PMID- 29320911 TI - Turning challenges into design principles: Telemonitoring systems for patients with multiple chronic conditions. AB - People with multiple chronic conditions often struggle with managing their health. The purpose of this research was to identify specific challenges of patients with multiple chronic conditions and to use the findings to form design principles for a telemonitoring system tailored for these patients. Semi structured interviews with 15 patients with multiple chronic conditions and 10 clinicians were conducted to gain an understanding of their needs and preferences for a smartphone-based telemonitoring system. The interviews were analyzed using a conventional content analysis technique, resulting in six themes. Design principles developed from the themes included that the system must be modular to accommodate various combinations of conditions, reinforce a routine, consolidate record keeping, as well as provide actionable feedback to the patients. Designing an application for multiple chronic conditions is complex due to variability in patient conditions, and therefore, design principles developed in this study can help with future innovations aimed to help manage this population. PMID- 29320912 TI - Fostering Transformation by Hearing Voices: Evaluating a 6-Second, Low-Fidelity Simulation. AB - BACKGROUND: The stigma of psychosis, with the accompanying symptoms of auditory and visual hallucinations, can affect a nurse's ability to provide safe, effective care. Increasing knowledge of the patient's perspective during auditory hallucinations can increase the nurse's ability to be empathetic and engage in a therapeutic alliance. OBJECTIVE: To evaluate the efficacy of a six-second auditory hallucination simulation to increase empathy in preclinical undergraduate nursing students. DESIGN: This descriptive, content analysis, qualitative study evaluated narratives written by students in a pre-licensure baccalaureate nursing student population, assessing empathy, insight, knowledge, and therapeutic communication. Students experienced the 6-second auditory hallucination simulation as part of preclinical instruction, and then they wrote a self-reflection. RESULTS: More than 200 self-reflections were collected, with a randomized final sample of 82 narratives evaluated. CONCLUSION: Self-reflections indicated that the experience of the 6-second hearing voices simulation increased efficacy, insight, knowledge, and intention to use therapeutic communication. PMID- 29320913 TI - A phase 2 study of rituximab, cyclophosphamide, bortezomib and dexamethasone (R CyBorD) in relapsed low grade and mantle cell lymphoma. AB - In this phase 2 trial, we sought to evaluate the efficacy and safety of rituximab, cyclophosphamide, bortezomib, and dexamethasone (R-CyBorD) in patients with low-grade NHL. The regimen included rituximab on day 1 with weekly cyclophosphamide, dexamethasone, and bortezomib 1.3 mg/m2 IV in a 28-day cycle. Twenty one patients were enrolled on the study. Median age was 69 years (range 51 80) and 17 (81%) patients had two or more prior treatments. Histologies included FL (n = 8), MCL (n = 8), and LPL/WM (n = 5). Hematologic toxicity and peripheral sensory neuropathy were the most common adverse events. With a median follow-up of 38.1 months, ORR was 13/21 (62%), with 4 (19%) CR. The ORR was 7/8 (88%) in FL and was 4/5 (80%) in LPL/WM. Median PFS and OS were 11.6 months and 54.8 months, respectively. R-CyBorD is an effective regimen in relapsed FL and LPL/WM patients with an acceptable safety profile. PMID- 29320914 TI - Early treatment of intrapericardial teratoma: a case presentation and systematic literature review. AB - OBJECTIVE: To present a case of an early treatment of cardiac intraperitoneal teratoma (IPT) in a newborn and its associated systematic literature review. METHODS: We presented a case of a newborn with IPT but without hydrops and having a good perinatal outcome after cardiac surgery. Using the PubMed database, we conducted a systematic literature review of articles regarding cases with cardiac IPT diagnosed and treated in the neonatal period and published in English from 2004 onward. We excluded cases that involved fetal death or interrupted gestation events. RESULTS: In total, 38 cases of IPT from 31 articles were included. The mean +/- standard deviation of the gestational age at diagnosis and delivery were 27.9 +/- 5.7 and 33.0 +/- 3.5 weeks, respectively, and that of birth weight was 2373 +/- 834.5 g. The majority of fetuses (42.1%) were males. Pericardial effusion was the most common symptom (60.5%) followed by hydrops (42.1%) and respiratory distress (42.1%). Intrauterine procedure was not performed in 63.1% of cases, and 71.0% of newborns were alive. CONCLUSIONS: IPT in newborns is usually associated with a good prognosis without the need for intrauterine procedures. Cases with IPT-related death are associated with hemodynamic impairment in fetuses with hydrops. PMID- 29320916 TI - The reliability of the Montreal Cognitive Assessment using telehealth in a rural setting with veterans. AB - Background Telehealth neuropsychological services can increase the availability of specialised care for individuals in rural areas where barriers to these services are faced. As this practice becomes more commonplace, the reliability and validity of neuropsychological assessment administered by telehealth continues to be established. The Montreal Cognitive Assessment, a screener for general neurocognitive dysfunction, may be particularly useful since this measure can be given by telehealth with minimal adaptation. Methods Veterans from a rural area of the country who were referred to an outpatient neuropsychology clinic were administered the Montreal Cognitive Assessment either in-person or by telehealth by a clinician. A second clinician observed the administration in person or by telehealth and independently scored the each participant's performance. The inter-rater reliabilities across conditions were compared to assess for differences between in-person and telehealth consultations. Results The inter-rater reliability of the Montreal Cognitive Assessment across the three conditions of interest was acceptably high and values ranged from r = 0.88 to r = 0.98. Reliability correlations were compared and no significant differences among the conditions were observed ( p's > 0.10). Beyond reliability, univariate comparison of the absolute mean differences of clinician scores showed no significant differences among the actual raw scores of the three conditions tested, indicating good accuracy ( p = 0.56). Conclusions The inter-rater reliabilities of Montreal Cognitive Assessment scores across conditions were all acceptably high, and administration of the Montreal Cognitive Assessment using telehealth technology did not significantly alter the total scores. Overall, the lack of significant differences suggests that administering the Montreal Cognitive Assessment by telehealth is reliable, accurate and well received by participants. PMID- 29320915 TI - Healthcare utilization and costs associated with treatment for opioid dependence. AB - OBJECTIVE: Opioid use disorder (OUD) can be managed with medication assisted therapy (MAT) (methadone [MET], buprenorphine [BUP], or extended-release naltrexone [XR-NTX]) or counseling alone (non-pharmacological therapy [NPT]). The objective of this study was to evaluate healthcare resource utilization and costs associated with XR-NTX compared with alternative treatments for opioid dependence. METHODS: Adults with a diagnosis of opioid dependence who initiated treatment with XR-NTX, BUP, MET, or NPT between January 1, 2011 and December 31, 2014 were identified in the Truven Health MarketScan Commercial administrative claims database. Healthcare resource utilization, costs (inpatient [IP], emergency department [ED], outpatient [OP], and pharmacy) and adherence were evaluated for each cohort during 12-month baseline and follow-up periods. RESULTS: A total of 29,235 patients were included in the analysis; 1,041, 20,566, 745, and 6,883 received XR-NTX, BUP, MET, and NPT, respectively. Patients in the XR-NTX cohort were significantly younger and had more comorbidities compared with the other cohorts. Patients in the XR-NTX group had the largest percentage decrease in IP and ED utilization and costs from baseline to follow-up. OP and pharmacy costs increased significantly from baseline to follow-up for all cohorts. Overall, there was no significant change in total healthcare costs for the XR-NTX group, whereas the costs increased significantly for other groups (BUP = +43%, MET = +47.7%, NPT = +38.8%). CONCLUSIONS: Healthcare resource utilization and costs increased from baseline to follow-up in BUP, MET, and NPT patients, whereas patients receiving XR-NTX experienced no such increase. This analysis suggests there may be economic value in the use of XR-NTX for OUD. PMID- 29320917 TI - Hypoesthesia in generalised anxiety disorder and major depression disorder. AB - OBJECTIVE: The determination of soft signs can be a conducive practice to understand the differential etiology between depression and anxiety. This study aims at examining malleolar hypoesthesia role in distinguishing between patients with generalised anxiety disorder (GAD) and major depression disorder (MDD). METHODS: This study examines the presence of malleolar hypoesthesia in patients with GAD (n = 47) compared to patients with MDD (n = 48) and healthy individuals (controls; n = 99). The Wartenberg wheel, a medical device for neurological use, was employed to determine the presence of hypoesthesia on both sides of the ankles. RESULTS: The data revealed: i) MDD patients showed higher hypoesthesia than GAD patients (p = .008), ii) participants with hypoesthesia had higher anxiety and depression scores than participants without hypoesthesia (all p < .001) and iii) logistic regression model indicated that hypoesthesia can be a predictor of MDD relative to GAD diagnosis (Odds Ratio: 17.43 (1.40-217.09; p = .026)). CONCLUSIONS: Malleolar hypoesthesia was higher in MDD than GAD. The detection of hypoesthesia may help to investigate the differential etiology between MDD and GAD diagnosis. PMID- 29320918 TI - The rs1256044 polymorphism in the ESR2 gene and the risk for osteoporosis in Polish postmenopausal women. AB - Population association studies have demonstrated a strong association between ESR2 SNPs and BMD, indicating that ESR2 may influence attainment of bone mass. The aim of the study was to investigate the ESR2 gene, located on chromosome 14q linked with BMD, which demonstrates a correlation with changes in bone mass in healthy Caucasian women. The study included 675 unrelated Polish postmenopausal women, including 109 with osteopenia, 333 with osteoporosis and 233 healthy women. The women were classified into the following groups: osteopenia, osteoporosis and normal T-score. Analysis of genotype frequency for the ESR2 rs1256044 polymorphism revealed no statistically significant differences. No statistically significant differences were noted for the allele frequency. However, it is noticeable that the CT genotype occurred more often in women with osteopenia (50.4%, OR = 1.14) and osteoporosis (54.7%, OR = 1.33) than controls (47.7%). There were statistically significant differences between the clinical parameters and distribution of genotypes in patients with osteopenia but not osteoporosis. ESR2 polymorphisms demonstrate minimal influence on BMD changes in women. Identification of various genes with little impact on BMD, such as ESR2, might help design a screening panel for osteoporosis risk assessment in healthy subjects. PMID- 29320919 TI - Does school physical education really contribute to accelerometer-measured daily physical activity and non sedentary behaviour in high school students? AB - Physical education has been highlighted as an important environment for physical activity promotion, however, to our knowledge there are no previous studies examining the contribution of physical education to daily accelerometer-measured physical activity and non sedentary behaviour. The purpose was to compare the accelerometer-measured physical activity and sedentary behaviour between physical education, non-physical education and weekend days in adolescents. Of the 394 students from a Spanish high school that were invited to participate, 158 students (83 boys and 75 girls) aged 13-16 years were analyzed (wear time >= 600 min). Participants' physical activity and sedentary behaviour were objectively measured by GT3X+ accelerometers during physical education (one session), non physical education and weekend days. Results indicated that overall adolescents had statistically significant greater physical activity levels and lower values of sedentary behaviour on physical education days than on non-physical education and weekend days (e.g., moderate-to-vigorous physical activity = 71, 54 and 57 min; sedentary = 710, 740 and 723 min) (p < 0.05). Physical education contributes significantly to reducing students' daily physical inactivity and sedentary behaviour. Increasing the number of physical education classes seems to be an effective strategy to reduce the high current prevalence of physical inactivity and sedentary behaviour in adolescence. PMID- 29320920 TI - Patency of uterine wall in pregnancies following assisted and spontaneous conception with antecedent laparoscopic and abdominal myomectomies - a difficult case and systematic review. AB - A case of uterine rupture at 24 weeks in a pregnancy succeeding myomectomy and triple embryo transfer is described and literature is reviewed systematically to evaluate the importance of uterine rupture in pregnancies after myomectomy in general and some important sub-populations. Systematic search identified 179 papers and following a strategical selection process 45 studies were analyzed in detail, including 6 cohort and 19 observational studies, 3 case series and 17 case reports. Comparison of risk of uterine rupture after abdominal and laparoscopic myomectomy is made. In pregnancies after IVF number of embryos transferred are determined. Optimal contraceptive intervals and surgical techniques are discussed. The consequences of these observations are analyzed and conclusions are made which can assist individualizing treatment options and improve patient selection. PMID- 29320921 TI - Benefits and risks with acellular dermal matrix (ADM) and mesh support in immediate breast reconstruction: a systematic review and meta-analysis. AB - In modern implant-based immediate breast reconstruction, it has become common to use biological acellular dermal and synthetic matrices in combination with a tissue expander or an implant. The aim of this systematic review was to examine differences in recurrence of cancer, impact on oncological treatment, health related quality of life, complications and aesthetic outcome between matrix and no matrix in immediate breast reconstruction. Systematic searches, data extraction and assessment of methodological quality were performed according to predetermined criteria. Fifty-one studies were eligible and included in the review. The certainty of evidence for overall complication rate and implant loss is low (GRADE ??? ?). The certainty of evidence for delay of adjuvant treatment, implant loss, infection, capsular contraction and aesthetic outcome is very low (GRADE ?? ? ?). No study reported data on recurrence of cancer or health related quality of life. In conclusion, there is a lack of high quality studies that compare the use of matrix with no matrix in immediate breast reconstruction. Specifically, there are no data on risk of recurrence of cancer, delay of adjuvant treatment and Health related quality of life (HRQoL). In addition, there is a risk of bias in many studies. It is often unclear what complications have been included and how they have been diagnosed, and how and when capsular contracture and aesthetic outcome have been evaluated. Controlled trials that further analyse the impact of radiotherapy, type of matrix and type of procedure (one or two stages) are necessary. PMID- 29320922 TI - Co-Emergence of Specialized Endothelial Cells from Embryonic Stem Cells. AB - A well-formed and robust vasculature is critical to the health of most organ systems in the body. However, the endothelial cells (ECs) forming the vasculature can exhibit a number of distinct functional subphenotypes like arterial or venous ECs, as well as angiogenic tip and stalk ECs. In this study, we investigate the in vitro differentiation of EC subphenotypes from embryonic stem cells (ESCs). Using our staged induction methods and chemically defined mediums, highly angiogenic EC subpopulations, as well as less proliferative and less migratory EC subpopulations, are derived. Furthermore, the EC subphenotypes exhibit distinct surface markers, gene expression profiles, and positional affinities during sprouting. While both subpopulations contained greater than 80% VE-cad+/CD31+ cells, the tip/stalk-like EC contained predominantly Flt4+/Dll4+/CXCR4+/Flt-1- cells, while the phalanx-like EC was composed of higher numbers of Flt-1+ cells. These studies suggest that the tip-specific EC can be derived in vitro from stem cells as a distinct and relatively stable EC subphenotype without the benefit of its morphological positioning in the sprouting vessel. PMID- 29320923 TI - The effect of seated pelvic tilt on posterior edge-loading in total hip arthroplasty: A finite element investigation. AB - Edge-loading of a ceramic-on-ceramic total hip replacement can lead to reproducible squeaking and revision. A patient's functional acetabular cup orientation, driven by their pelvic tilt, has been shown to be a significant factor in squeaking during hip flexion. The aim of this study was to investigate the effect of seated pelvic tilt on the contact mechanics at the ceramic bearing surface. A finite element model of a ceramic-on-ceramic total hip replacement was created. The cup was orientated at 40 degrees inclination and 15 degrees anteversion relative to the anterior pelvic plane. The stem was flexed 90 degrees to replicate sitting in a chair. The model was loaded using data from in vivo measurements taken during a sit-to-stand activity. The pelvis was modelled in seven different sagittal positions, ranging from -30 degrees to 30 degrees of pelvic tilt, where a positive value denotes anterior pelvic tilt. Three different head sizes were investigated: 32, 36 and 40 mm. The maximum contact pressure and contact patch to rim distance were determined for each of the 21 simulations. Edge-loading (contact patch to rim distance < 0 mm) occurred with all head sizes when seated pelvic tilt was >=10 degrees and induced a large increase in contact pressure on the liner, with a maximum pressure exceeding 500 MPa. Edge-loading initiated at seated pelvic tilts of 7 degrees , 9 degrees and 5 degrees for the 32, 36 and 40 mm heads, respectively. Patients with anterior pelvic tilts in the seated position are susceptible to posterior edge-loading. As the position of the pelvis when seated is patient specific, cup orientation should be adjusted on an individual basis to minimise edge-loading. PMID- 29320924 TI - A model to evaluate Pauwels type III femoral neck fractures. AB - While many femoral neck fractures can be reliably treated with surgical intervention, Pauwels III femoral neck fractures in the young adult population continue to be a challenging injury, and there is no consensus on optimal treatment. As such, there are past and ongoing biomechanical studies to evaluate the fixation provided by different constructs for this inherently unstable fracture. While many investigations rely on cadavers to evaluate the biomechanical performance of a construct, significant inter-subject variability can confound the analysis. Biomechanical femur analogs are being used more frequently due to more consistent mechanical properties; however, they have not been stringently evaluated for morphology or suitability for instrumentation. This study sought to determine the variability among composite femoral analogs as well as consistently create a Pauwels III injury and instrument the analogs without the need for fluoroscopic guidance. In total, 24 fourth-generation composite femoral analogs were evaluated for femoral height, neck-shaft angle, anteversion, and cortical thickness. A method was developed to simulate a Pauwels III fracture and to prepare three different constructs: an inverted triangle of cannulated screws, a sliding hip screw, and a hybrid inverted triangle with cannulated screws and a sliding hip screw. Radiographs were utilized to evaluate the variation in implant position. All but one of the morphological parameters varied by <1%. The tip-to-apex distance for all sliding hip screw hardware was 18.8 +/- 3.3 mm, and all relevant cannulated screw distances were within 5 mm of the adjacent cortex. All screws were parallel, on average, within 1.5 degrees on anterior-posterior and lateral films. Fourth-generation composite femora were found to be morphologically consistent, and it is possible to consistently instrument the analogs without the use of fluoroscopy. This analog and hardware implantation model could serve as a screening model for new fracture repair constructs without the need for cadaveric tissues or radiologic technology. PMID- 29320925 TI - Self-Perceived and Actual Motor Competence in Young British Children. AB - Children's perception of their own motor competence is an important correlate of their actual motor competence. The current study is the first to examine this association in British children and the first to use both product and process measures of actual motor competence. A total of 258 children (139 boys and 119 girls; aged 4 to 7 years, Mean = 5.6, SD = .96) completed measures of self perceived motor competence using the Pictorial Scale for Perceived Movement Competence in Young Children. Children were classified as "Low," "Medium," or "High" perceived competence based on tertile analysis. Actual motor competence was assessed with the Test of Gross Motor Development-2 (a process measure) and a composite of 10-m sprint run time, standing long jump distance, and 1-kg seated medicine ball throw (collectively, a product measure). Data for process and product measures were analyzed using a 2 (sex) * 3 (high, medium, low perceived competence) analysis of covariance, with body mass index, calculated from height and mass, and age controlled. Boys obtained significantly higher scores than girls for both the process ( p = .044) and product ( p = .001) measures of actual motor competence. Boys had significantly ( p = .04) higher scores for perceived competence compared to girls. Compared to children classified as medium and high self-perceived competence, children classified as low self-perceived competence had lower process ( p = .001) and product scores (i.e., medium, p = .009 and high, p = .0001) of actual motor competence. Age ( p = .0001) and body mass index ( p = .0001) were significantly associated with product motor competence. Strategies to enhance actual motor competence may benefit children's self perceived motor competence. PMID- 29320926 TI - Brain perfusion fixation in male pigs using a safer closed system. AB - Tissue fixation methods are well established for rodents, but not for large animals. We present a simple technique for in situ brain perfusion fixation in a male porcine model, using cervical vessels for inflow and outflow and achieving a closed system. Thirty-four pigs, aged 4.7 +/- 0.6 months and weighing 60.7 +/- 10.9 kg, were anaesthetised and mechanically ventilated. The ipsilateral common carotid artery and external jugular vein were dissected and constituted the inflow and outflow access, respectively. The brains were perfused and fixed in situ with heparinised saline followed by buffered formaldehyde. Then, specimens (brain, cerebellum and brainstem) were extracted and processed for histology. Fixative fluid leakage was avoided, achieving a closed system. This technique minimises the exposure to toxic chemicals such as formaldehyde and associated hazards (inherent toxicity, eye irritation), thereby increasing operators' safety. Perfusion was performed with a peristaltic pump for 20-30 minutes at an optimum rate of 0.20 l/min and required only 5 litres of the fixative. The specimens were sufficiently hardened to be extracted. High-quality tissues were available for histology analysis. This technique offers a user-friendly closed system for brain perfusion fixation which can be adapted for other tissues of the head, face and neck. PMID- 29320927 TI - Benefits of Using High-Volume-Low-Pressure Tracheal Tube in Children Undergoing Congenital Cardiac Surgery: Evidence From a Prospective Randomized Study. AB - BACKGROUND: In the past 2 decades, usage of high-volume-low-pressure microcuffed tracheal tubes in smaller children has increased. However, there is paucity of evidence of its usage in smaller children undergoing congenital cardiac surgery. The aim of this study was to assess if microcuff endotracheal tubes in neonates and younger children undergoing congenital cardiac surgery is associated with better outcomes than uncuffed tubes. METHODS: We carried out this single-center, prospective, randomized study between June and November 2016. Eighty patients were randomized into those receiving microcuff tracheal tubes and conventional uncuffed tubes. Primary outcome was stridor postextubation. Secondary outcomes measured included number of tube changes, volume of anesthetic gases required, and cost incurred. RESULTS: The 2 groups were comparable in terms of baseline characteristics and duration of intubation. Incidence of stridor was significantly higher in conventional uncuffed tubes (12 [30%] vs 4 [10%]; P = .04) and so was the number of tube changes required (17/40 [42.5%] vs 2/40 [5%]; P <= .001). Tube change was associated with more than 3-fold risk of stridor (odds ratio = 3.92; 95% confidence interval = 1.23-12.43). Isoflurane (29.14 +/- 7.01 mL vs19.2 +/- 4.81 mL; P < .0001) and oxygen flow requirement ( P < .0001) and the resultant cost (7.46 +/- 1.4 vs 5.77 +/- 1.2 US$; P < .0001) were all significantly higher in the conventional uncuffed group. CONCLUSION: Microcuff pediatric tracheal tube is associated with significantly lower incidence of stridor, tube changes, and anesthetic gas requirement. This leads to significant cost reduction that offsets the higher costs associated with usage of a microcuff tracheal tube. PMID- 29320928 TI - Interaction of caffeine and sulfadiazine with lysozyme adsorbed at colloidal metal nanoparticle interface: influence on drug transport ability and antibacterial activity. AB - The modulated bioactivity of proteins immobilized on nanoparticle (NP) interfaces is of tremendous interest toward designing better therapeutic and diagnostic tools. In this work, binding behavior and the antibacterial activity of free lysozyme (LYS) as well as its non-covalent assembly with silver (Ag) and gold (Au) colloidal NPs were compared in presence of two model drugs, viz. sulfadiazine (SDZ) and caffeine (CAF). Intrinsic protein fluorescence was found to quench due to the formation drug-protein complex in case of CAF resulting a linear Stern-Volmer (SV) plot with KSV = 1.83 * 103 M-1.On the other hand, a positive deviation beyond [SDZ] ~0.15 mM is explained due to the formation of a fluorophore - quencher sphere with radius of 13.85 +/- 1.80 A that results almost one order of magnitude higher KSV (1.75 * 104 M-1). Molecular docking calculation also predicts relatively more stabilized complex of SDZ with LYS in comparison to CAF (DeltaE ~ 3 kJ mol-1). Synchronous fluorescence results corresponding to Trp and Tyr residues as well as FTIR spectra in the amide I region of LYS confirms minimal deformation in the LYS secondary structure on adsorption to spherical NP surface. Although the nature of LYS-drug interaction remains invariant, the extent of quenching interaction as well as the drug binding ability is strongly modulated in presence of NPs. Further, the antibacterial activity of LYS in presence of the investigated drugs shows 9-14% upsurge with AuNP, in sharp contrast to ca. 31-34% decrease in AgNP. PMID- 29320929 TI - Metacognitive Reflection as a Moderator of Attitude Strength Versus Attitude Bolstering: Implications for Attitude Similarity and Attraction. AB - "Strong" attitudes often have greater impact than "weak" attitudes. However, emerging research suggests that weak (uncertain) attitudes can substantially influence thinking or behavior. We propose metacognitive reflection as a moderator between traditional strength patterns and these emerging attitude bolstering patterns. Across six studies, research participants encountered a target person who agreed or disagreed with participants' attitudes. When focused on evaluating the target, attitudes predicted target evaluations better when the attitude was held with certainty (Study 1A), or after certainty had been primed (Studies 2A and 3; strength effects). However, when engaged in attitudinal social comparison (metacognitive reflection), attitudes better predicted target evaluation when the attitudes were held with doubt (Study 1B), or after doubt had been primed (Studies 2B and 3; bolstering effects). Expected change in certainty served as a mediator of attitude effects in metacognitive reflection but not target-focus conditions when doubt had been primed (Study 4). PMID- 29320930 TI - The Amount and Source of Millionaires' Wealth (Moderately) Predict Their Happiness. AB - Two samples of more than 4,000 millionaires reveal two primary findings: First, only at high levels of wealth-in excess of US$8 million (Study 1) and US$10 million (Study 2)-are wealthier millionaires happier than millionaires with lower levels of wealth, though these differences are modest in magnitude. Second, controlling for total wealth, millionaires who have earned their wealth are moderately happier than those who inherited it. Taken together, these results suggest that, among millionaires, wealth may be likely to pay off in greater happiness only at very high levels of wealth, and when that wealth was earned rather than inherited. PMID- 29320931 TI - Physician decision making in anticoagulating atrial fibrillation: a prospective survey of a physician notification system for atrial fibrillation detected on cardiac implantable electronic devices of patients at increased risk of stroke. AB - OBJECTIVES: The objectives of this study were to evaluate the effectiveness of a physician notification system for atrial fibrillation (AF) detected on cardiac devices, and to assess predictors of anticoagulation in patients with device detected AF. METHODS: In 2013, a physician notification system for AF detected on a patient's CIED [including pacemakers, implantable cardioverter defibrillators (ICD) or cardiac resynchronization therapy (CRT) devices] was implemented, with a recommendation to consider oral anticoagulation in high-risk patients. We prospectively investigated the effectiveness of this system, and evaluated both patient and physician predictors of anticoagulation, as well as factors influencing physician decision making in prescribing anticoagulation. Both uni- and multivariable analysis as well as descriptive statistics were used in the analysis. RESULTS: We identified 177 patients with device-detected AF, 126 with a CHADS2 ?2. Only 41% were prescribed anticoagulation at any point within 12 months. On multivariable analysis, stroke risk as predicted by CHADS2 was not a predictor of anticoagulation. ASA use predicted a lower rate of anticoagulation (OR 0.39, 95% CI 0.16-0.97, p = 0.04); physicians in practice for <20 years were more likely to prescribe anticoagulation (OR 3.39, 95% CI 1.28-8.93, p = 0.01); and physicians who believed both cardiologist and family doctor should be involved in managing anticoagulation were more likely to prescribe anticoagulation (OR 3.28, 95% CI 1.02-10.5, p = 0.05). CONCLUSIONS: Patients on aspirin were less likely to be anticoagulated. Physicians in practice for <20 years and who believed that both the general practitioner and cardiologist should be involved in managing anticoagulants were more likely to prescribe anticoagulation. PMID- 29320932 TI - Classical molecular dynamics simulation of seryl tRNA synthetase and threonyl tRNA synthetase bound with tRNA and aminoacyl adenylate. AB - Lacunae of understanding exist concerning the active site organization during the charging step of the aminoacylation reaction. We present here a molecular dynamics simulation study of the dynamics of the active site organization during charging step of subclass IIa dimeric SerRS from Thermus thermophilus (ttSerRS) bound with tttRNASer and dimeric ThrRS from Escherichia coli (ecThrRS) bound with ectRNAThr. The interactions between the catalytically important loops and tRNA contribute to the change in dynamics of tRNA in free and bound states, respectively. These interactions help in the development of catalytically effective organization of the active site. The A76 end of the tttRNASer exhibits fast dynamics in free State, which is significantly slowed down within the active site bound with adenylate. The loops change their conformation via multimodal dynamics (a slow diffusive mode of nanosecond time scale and fast librational mode of dynamics in picosecond time scale). The active site residues of the motif 2 loop approach the proximal bases of tRNA and adenylate by slow diffusive motion (in nanosecond time scale) and make conformational changes of the respective side chains via ultrafast librational motion to develop precise hydrogen bond geometry. Presence of bound Mg2+ ions around tRNA and dynamically slow bound water are other common features of both aaRSs. The presence of dynamically rigid Zinc ion coordination sphere and bipartite mode of recognition of ectRNAThr are observed. PMID- 29320933 TI - Gray matter networks and cognitive impairment in multiple sclerosis. AB - BACKGROUND: Coordinated patterns of gray matter morphology can be represented as networks, and network disruptions may explain cognitive dysfunction related to multiple sclerosis (MS). OBJECTIVE: To investigate whether single-subject gray matter network properties are related to impaired cognition in MS. METHODS: We studied 148 MS patients (99 female) and 33 healthy controls (HC, 21 female). Seven network parameters were computed and compared within MS between cognitively normal and impaired subjects, and associated with performance on neuropsychological tests in six cognitive domains with regression models. Analyses were controlled for age, gender, whole-brain gray matter volumes, and education level. RESULTS: Compared to MS subjects with normal cognition, MS subjects with cognitive impairment showed a more random network organization as indicated by lower lambda values (all p < 0.05). Worse average cognition and executive function were associated with lower lambda values. Impaired information processing speed, working memory, and attention were associated with lower clustering values. CONCLUSION: Our findings indicate that MS subjects with a more randomly organized gray matter network show worse cognitive functioning, suggesting that single-subject gray matter graphs may capture neurological dysfunction due to MS. PMID- 29320934 TI - Improving the Care of Youth With Type 1 Diabetes With a Novel Medical-Legal Community Intervention: The Diabetes Community Care Ambassador Program. AB - Purpose The purpose of this study was to examine the feasibility and efficacy of the Diabetes Community Care Ambassador (DCCA) Program, a novel medical-legal community intervention designed to support high-risk youth with type 1 diabetes. Methods Study eligibility criteria: ages 3-19 years, A1C >=8.5% (>=69 mmol/mol) and/or recent diabetic ketoacidosis hospitalization, type 1 diabetes duration >=1 year, and English- or Spanish-speaking. Eighty-nine youth and their caregivers participated in the 9- to 12-month intervention, which included diabetes education and support through 3 home visits, 1 to 2 school visits, and phone support from a lay health worker, as well as legal support from a medical-legal partnership attorney. Feasibility was assessed; change in A1C was compared in a linear mixed model. Results Of the 89 DCCA Program participants, 80% completed the program, with the majority of participants rating their DCCA favorably. Sixty two percent reported >=1 unmet legal need, of whom 29% accepted legal counsel. Youth enrolled in the DCCA Program demonstrated an improvement in glycemic control as their mean A1C decreased from 9.71% (83 mmol/mol) at the start of the program to 9.40% (79 mmol/mol) at the end of the intervention period ( P = .03). Participants with public health insurance experienced the greatest differential A1C reduction (9.79% to 9.11%, 83 mmol/mol to 76 mmol/mol). Conclusions The DCCA Program represents a promising intervention for improving care of high-risk youth with type 1 diabetes. A significant proportion of caregivers of youth reported having an unmet legal need. Participants remained highly engaged and demonstrated improved glycemic control, particularly youth with public health insurance. PMID- 29320935 TI - Modified Dorsal Approach in the Management of Lisfranc Injuries. AB - BACKGROUND: Open reduction and internal fixation of Lisfranc injuries has typically used multiple longitudinal incisions or a single transverse incision to approach the tarso-metatarsal joint (TMTJ). The incidence of wound-related complications is considerable. We describe a novel single-incision approach that utilizes subcutaneous windows to the medial TMTJ. METHODS: A retrospective review identified 150 patients who underwent open reduction and internal fixation for Lisfranc injuries, via the modified dorsal approach, at our center between January 2011 and June 2016. Removal of hardware (ROH) was routinely undertaken in 105 patients at a median of 210 days postoperatively. Medical records were reviewed to record patient demographics, mechanism of injury, and operative details. Outpatient notes were reviewed to identify wound-related complications, including delayed wound healing, superficial infection, wound dehiscence, deep infection, complex regional pain syndrome (CRPS), neuroma, and impaired sensation. Median age was 37 years (range, 19-78 years). Seventy-three percent of patients (110) were male. Most frequent mechanisms of injury were motor vehicle accident (MVA), 39%; motorbike accident (MBA), 19%; and fall, 18%. Sixteen percent (24) of injuries were open. Five patients required soft tissue reconstruction at the primary operation. Median follow-up was 144 (range, 27-306) weeks. RESULTS: Following the primary procedure, 14% of patients experienced wound-related complications including delayed healing (3%), superficial infection (5%), dehiscence (3%), complex regional pain syndrome (CRPS) (1%), and impaired sensation (1%). MBA injuries were at 15.1 times odds of superficial infection ( P =.01) than were MVA injuries. Following ROH, 13% of patients experienced wound related complications, including delayed healing (2%), superficial infection (8%), dehiscence (1%), CRPS (2%), and neuroma (1%). Overall, 5 patients returned to surgery for soft tissue reconstruction for wound dehiscence. CONCLUSION: The modified dorsal approach using intervals to the midfoot offers a viable alternative with comparable wound complication rates to existing midfoot approaches. LEVEL OF EVIDENCE: Level IV, case series. PMID- 29320936 TI - Role of the Deltoid Ligament in Syndesmotic Instability. AB - BACKGROUND: The deltoid ligament (DL) is the principal ligamentous stabilizer of the medial ankle joint. Little is known, however, about the contribution of the DL toward stabilizing the syndesmosis. The aim of this study was to arthroscopically evaluate whether the DL contributes to syndesmotic stability in the coronal plane. METHODS: Eight above-knee cadaveric specimens were used in this study. A lateral hook test was performed by applying 100 N of lateral force to the fibula in the intact state and after sequential transection of the DL, anterior-inferior tibiofibular ligament (AITFL), interosseous ligament (IOL), and posterior-inferior tibiofibular ligament (PITFL). At each stage, distal tibiofibular diastasis was measured arthroscopically at both the anterior and posterior third of the incisura and compared to stress measurements of the intact syndesmosis. Measurements were performed using probes ranging from 0.1 to 6.0 mm, with 0.1-mm increments. RESULTS: There was no significant increase in diastasis at either the anterior or posterior third of the tibiofibular articulation after isolated DL disruption, nor when combined with AITFL transection. In contrast, a significant increase in diastasis was observed following additional disruption of the IOL (anterior and posterior third diastasis, P= .012 and .026, respectively), and after transection of all 3 syndesmotic ligaments (anterior and posterior third diastasis, P=.001 and .001, respectively). CONCLUSION: When evaluating the syndesmosis arthroscopically in a cadaveric model under lateral stress, neither isolated disruption of the DL nor combined DL and AITFL injuries destabilized the syndesmosis in the coronal plane. In contrast, the syndesmosis became unstable if the DL was injured in conjunction with partial syndesmotic disruption that included the AITFL and IOL. CLINICAL RELEVANCE: Disruption of the DL appeared to destabilize the syndesmosis in the coronal plane when associated with partial disruption of the syndesmosis (AITFL and IOL). PMID- 29320937 TI - Radiographic Measurements Associated With the Natural Progression of the Hallux Valgus During at Least 2 Years of Follow-up. AB - BACKGROUND: This study aimed to investigate the radiographic measurements associated with the progression of hallux valgus during at least 2 years of follow-up. METHODS: Seventy adult patients with hallux valgus who were followed for at least 2 years and underwent weightbearing foot radiography were included. Radiographic measurements included the hallux valgus angle (HVA), hallux interphalangeal angle, intermetatarsal angle (IMA), metatarsus adductus angle, distal metatarsal articular angle (DMAA), tibial sesamoid position, anteroposterior (AP) talo-first metatarsal angle, and lateral talo-first metatarsal angle. Patients were divided into progressive and nonprogressive groups. Binary logistic regression analysis was performed to identify factors that significantly affected the progression of hallux valgus deformity. The correlation between change in HVA and changes in other radiographic indices during follow-up was analyzed. RESULTS: The DMAA ( P = .027) and AP talo-first metatarsal angle ( P = .034) at initial presentation were found to be significant factors affecting the progression of hallux valgus deformity. Change in the HVA during follow-up was significantly correlated with changes in the IMA ( r = 0.423; P = .001) and DMAA ( r = 0.541; P < .001). CONCLUSION: The change in the HVA was found to be significantly correlated with changes in the IMA and DMAA. A future study is required to elucidate whether this correlation can be explained by the progressive instability of the first tarsometatarsal joint. We believe special attention needs to be paid to patients with pes planus and increased DMAA. LEVEL OF EVIDENCE: Level III, comparative study. PMID- 29320938 TI - Diagnosing Prosopagnosia: The Utility of Visual Noise in the Cambridge Face Recognition Test. AB - Adding visual noise to facial images has been used to increase reliance on configural processing. Whether this enhances the ability of tests to diagnose prosopagnosia is not known. We examined 15 subjects with developmental prosopagnosia, 13 subjects with acquired prosopagnosia, and 38 control subjects with the Cambridge Face Memory Test. We compared their performance on the second phase, without visual noise, and on the third phase, which adds visual noise. We analyzed the results with signal detection theory methods. The performance of controls worsened more than did that of prosopagnosic subjects when noise was added. The second phase showed better ability to discriminate between prosopagnosic and control subjects than did the third phase. For developmental prosopagnosia, a test using only the 48 trials of the first and second phases yielded sensitivity of 88% and specificity of 91% with a criterion of 33/48 correct, performance characteristics that are similar for a criterion of 43/72 for the whole test. We conclude that a shortened Cambridge Face Memory Test without the noisy images may be a quicker yet equally effective instrument for diagnosing prosopagnosia. The theoretical advantage of noisy images is outweighed by the poorer performance of control subjects with visual noise. PMID- 29320939 TI - New York State's COSH Movement: A Brief History. AB - Unions, health and safety activists, and professionals came together to create Coalitions for Occupational Safety and Health (COSH groups) in a number of cities across the United States beginning in the 1970s. The COSHes have played an important and unique role in advocating worker health and safety since that time, through activities including technical assistance, training and education, and campaigns on workplace and public policies. In New York State, activist coalitions created eight COSH groups distributed around the state. This paper presents a history of New York's COSHes based on interviews with key participants. The interviews shed light on the origins of the COSH movement in New York, the development and activities of the COSHes, and the organizational trajectory of individual New York COSHes in response to both extra and intraorganizational challenges. Participants' accounts of these issues may be useful for those seeking to sustain the COSH movement. PMID- 29320940 TI - Methylation-mediated loss of SFRP2 enhances invasiveness of non-small cell lung cancer cells. AB - The malignancy of non-small cell lung cancer (NSCLC) largely results from its invasive manner. Secreted frizzled-related proteins (SFRPs) have been recently found to suppress the invasiveness of some cancers. On the other hand, the methylation of SFRPs increases protein degradation to reduce the activity of SFRPs, resulting in increased tumor cell invasion and cancer metastasis. However, the role of SFRPs in the invasion of NSCLC has not been reported. Here we analyzed the regulation of SFRPs in NSCLC cells and its effects on cell invasion. We found that SFRP2 mRNA was significantly decreased and methylation of SFRP2 gene was significantly increased in NSCLC tissue, compared to the paired adjacent nontumor tissue. Moreover, SFRP2 expression was significantly decreased in NSCLC cell lines. In NSCLC cell lines, the SFRP2 expression would be restored by the demethylation of SFRP2 gene with 5'-aza-deoxycytidine in NSCLC cell lines, at the levels of both mRNA and protein. Thus, the cell invasion would be suppressed. Furthermore, the demethylation of SFRP2 gene appeared to inhibit Zinc Finger E Box Binding Homeobox 1 (ZEB1) and matrix metallopeptidase 9 (MMP9), two key factors that enhance NSCLC cell invasion. Thus, SFRP2 may inhibit NSCLC invasion by suppressing ZEB1 and MMP9, while its methylation promotes NSCLC invasion. PMID- 29320942 TI - Campus Sexual Assault: Future Directions for Research. AB - Campus sexual assault (CSA) has received unprecedented attention over recent years, resulting in an abundance of federal guidance and mandates. In response, efforts to address and prevent CSA at Institutions of Higher Education (IHE) across the country have grown quickly, including the development and implementation of programs and policies. Because the changes on campuses have occurred at such a rapid pace, a number of gaps exist within the field of CSA research. To ensure that changes on IHE are evidence-based, there is a need to review the existing research available and the inquiry still needed, based on key areas outlined in federal guidance, the expressed needs of campus community members, survivors, and students who commit sexual offenses on college campuses. The purpose of this review is to summarize the empirical research related to CSA gained from the past two decades and identify areas in which further work is needed, specifically related to key areas identified in recent guidance provided to IHE. This article concludes with guidance for research moving forward to help strengthen response and prevention efforts. PMID- 29320941 TI - Progressive delayed respiratory complications of sulfur mustard poisoning in 43 Iranian veterans, three decades after exposure. AB - The most common delayed complication of sulfur mustard (SM) poisoning has been observed in the respiratory tracts. It was thus aimed to investigate the delayed respiratory complications in SM-exposed patients around 25 years before the study. Forty-three veterans with more than 25% disability of due to SM poisoning were investigated. Clinical examinations as well as pulmonary function test (PFT) were performed. High-resolution computed tomography (HRCT) of the lungs was done as clinically indicated. Triad of chronic cough, dyspnea, and expectoration were the most common symptoms that were recorded in 88.2%, 88.2%, and 64.7% of the patients, respectively. PFT abnormalities were detected in 44.18% of the patients. Restrictive pattern was the most common (41.86%), while pure obstructive pattern did not detect at all. Mixed pattern was significantly correlated with higher disability percentages among the veterans ( p < 0.001). Significant reverse correlation between the disability percentages and forced expiratory volume in 1 s/forced vital capacity ratio was obtained ( p = 0.010, r = -0.389). Air trapping was the most common abnormality in HRCTs (50%). Bronchiectasis (25%), pulmonary fibrosis (25%), and ground-glass attenuation (16.66%) were other common HRCT findings. Comparing with the previous studies on these patients, more restrictive and mixed pattern were observed. Moreover, bronchiolitis, bronchiectasis, and lung fibrosis were the main pathological findings in these patients. PMID- 29320943 TI - Management training in global health education: a Health Innovation Fellowship training program to bring healthcare to low-income communities in Central America. AB - BACKGROUND: Interprofessional education is increasingly recognized as essential for health education worldwide. Although effective management, innovation, and entrepreneurship are necessary to improve health systems, business schools have been underrepresented in global health education. Central America needs more health professionals trained in health management and innovation to respond to health disparities, especially in rural communities. OBJECTIVE: This paper explores the impact of the Health Innovation Fellowship (HIF), a new training program for practicing health professionals offered jointly by the Central American Healthcare Initiative and INCAE Business School, Costa Rica. Launched in 2014, HIF's goal is to create a network of highly trained interdisciplinary health professionals in competencies to improve health of Central American communities through better health management. METHODS: The program's fellows carried out innovative healthcare projects in their local regions. The first three annual cohorts (total of 43 fellows) represented all health-related professions and sectors (private, public, and civil society) from six Central American countries. All fellows attended four 1-week, on-site modular training sessions, received ongoing mentorship, and stayed connected through formal and informal networks and webinars through which they exchange knowledge and support each other. CAHI stakeholders supported HIF financially. RESULTS: Impact evaluation of the three-year pilot training program is positive: fellows improved their health management skills and more than 50% of the projects found either financial or political support for their implementation. CONCLUSIONS: HIF's strengths include that both program leaders and trainees come from the Global South, and that HIF offers a platform to collaborate with partners in the Global North. By focusing on promoting innovation and management at a top business school in the region, HIF constitutes a novel capacity-building effort within global health education. HIF is a capacity-building effort that can be scaled up in the region and other low- and middle-income countries. PMID- 29320945 TI - The Influence of Exercise Dosing on Outcomes in Patients With Knee Disorders: A Systematic Review. AB - Study Design Systematic review. Background Therapeutic exercise is commonly used to treat individuals with knee disorders, but dosing parameters for optimal outcomes are unclear. Large variations exist in exercise prescription, and research related to specific dosing variables for knee osteoarthritis, patellar tendinopathy, and patellofemoral pain is sparse. Objectives To identify specific doses of exercise related to improved outcomes of pain and function in individuals with common knee disorders, categorized by effect size. Methods Five electronic databases were searched for studies related to exercise and the 3 diagnoses. Means and standard deviations were used to calculate effect sizes for the exercise groups. The overall quality of evidence was assessed using the Physiotherapy Evidence Database scale. Results Five hundred eighty-three studies were found after the initial search, and 45 were included for analysis after screening. Physiotherapy Evidence Database scale scores were "fair" quality and ranged from 3 to 8. For knee osteoarthritis, 24 total therapeutic exercise sessions and 8- and 12-week durations of exercise were parameters most often associated with large effects. An exercise frequency of once per week was associated with no effect. No trends were seen with exercise dosing for patellar tendinopathy and patellofemoral pain. Conclusion This review suggests that there are clinically relevant exercise dosing variables that result in improved pain and function for patients with knee osteoarthritis, but optimal dosing is still unclear for patellar tendinopathy and patellofemoral pain. Prospective studies investigating dosing parameters are needed to confirm the results from this systematic review. Level of Evidence Therapy, level 1a. J Orthop Sports Phys Ther 2018;48(3):146-161. Epub 10 Jan 2018. doi:10.2519/jospt.2018.7637. PMID- 29320944 TI - Effects of Varying Reverberation on Music Perception for Young Normal-Hearing and Old Hearing-Impaired Listeners. AB - Reverberation enhances music perception and is one of the most important acoustic factors in auditorium design. However, previous research on reverberant music perception has focused on young normal-hearing (YNH) listeners. Old hearing impaired (OHI) listeners have degraded spatial auditory processing; therefore, they may perceive reverberant music differently. Two experiments were conducted examining the effects of varying reverberation on music perception for YNH and OHI listeners. Experiment 1 examined whether YNH listeners and OHI listeners prefer different amounts of reverberation for classical music listening. Symphonic excerpts were processed at a range of reverberation times using a point source simulation. Listeners performed a paired-comparisons task in which they heard two excerpts with different reverberation times, and they indicated which they preferred. The YNH group preferred a reverberation time of 2.5 s; however, the OHI group did not demonstrate any significant preference. Experiment 2 examined whether OHI listeners are less sensitive to (e, less able to discriminate) differences in reverberation time than YNH listeners. YNH and OHI participants listened to pairs of music excerpts and indicated whether they perceived the same or different amount of reverberation. Results indicated that the ability of both groups to detect differences in reverberation time improved with increasing reverberation time difference. However, discrimination was poorer for the OHI group than for the YNH group. This suggests that OHI listeners are less sensitive to differences in reverberation when listening to music than YNH listeners, which might explain the lack of group reverberation time preferences of the OHI group. PMID- 29320946 TI - Cognitive Demands Influence Lower Extremity Mechanics During a Drop Vertical Jump Task in Female Athletes. AB - Study Design Cross-sectional study. Background The drop vertical jump task is commonly used to screen for anterior cruciate ligament injury risk; however, its predictive validity is limited. The limited predictive validity of the drop vertical jump task may be due to not imposing the cognitive demands that reflect sports participation. Objectives To investigate the influence of additional cognitive demands on lower extremity mechanics during execution of the drop vertical jump task. Methods Twenty uninjured women (age range, 18-25 years) were required to perform the standard drop vertical jump task, as well as drop vertical jumps that included additional cognitive demands. The additional cognitive demands were related to attending to an overhead goal (ball suspended overhead) and/or temporal constraints on movement selection (decision making). Three-dimensional ground reaction forces and lower extremity mechanics were compared between conditions. Results The inclusion of the overhead goal resulted in higher peak vertical ground reaction forces and lower peak knee flexion angles in comparison to the standard drop vertical jump task. In addition, participants demonstrated greater peak knee abduction angles when trials incorporated temporal constraints on decision making and/or required participants to attend to an overhead goal, in comparison to the standard drop vertical jump task. Conclusion Imposing additional cognitive demands during execution of the drop vertical jump task influenced lower extremity mechanics in a manner that suggested increased loading of the anterior cruciate ligament. Tasks utilized in anterior cruciate ligament injury risk screening may benefit from more closely reflecting the cognitive demands of the sports environment. J Orthop Sports Phys Ther 2018;48(5):381-387. Epub 10 Jan 2018. doi:10.2519/jospt.2018.7739. PMID- 29320947 TI - From global-to-local: rural mental health in South Africa. AB - In this paper, the current situation regarding rural mental health in South Africa is explored. The current status is presented, followed by an attempt to provide approaches and ideas to improve the situation in order to make it more context appropriate and relevant. Issues of staffing, task shifting or sharing, and formal vs informal health care systems are considered and discussed as possible future approaches to improve rural mental health care in South Africa. PMID- 29320949 TI - Absorption, distribution, metabolism and excretion of an isocitrate dehydrogenase 2 inhibitor enasidenib in rats and humans. AB - 1. The absorption, distribution, metabolism and excretion of enasidenib were studied following a single oral dose of [14C]enasidenib to rats (10 mg/kg; 100 MUCi/kg) and healthy volunteers (100 mg; 318 nCi). 2. Enasidenib was readily absorbed, extensively metabolized and primarily eliminated via the hepatobiliary pathway. Enasidenib-derived radioactivity was widely distributed in rats. Excretion of radioactivity was approximately 95-99% of the dose from rats in 168 h post-dose and 82.4% from human volunteers in 504 h post-dose. In rat bile, approximately 35-42% of the administered dose was recovered, with less than 5% of the dose excreted as the parent drug. Renal elimination was a minor pathway, with <12% of the dose excreted in rat urine and <10% of the dose excreted in human urine. 3. Enasidenib was the prominent radioactive component in rat and human systemic circulation. Enasidenib was extensively metabolized in rats and human volunteers through N-dealkylation, oxidation, direct glucuronidation and combinations of these pathways. Glucuronidation was the major metabolic pathway in rats while N-dealkylation was the prominent metabolic pathway in human volunteers. All human metabolites were detected in rats. PMID- 29320950 TI - Reclaim the Menopause: A pilot study of an evidence-based menopause course for symptom management and resilience building. AB - Reclaim the Menopause is a community-based menopause course developed by Hands Inc. and supported by Hackney Learning Trust. The course provides evidence-based education, cognitive behaviour therapy and psychosocial support to promote menopause awareness, challenge stigma and increase self-management amongst menopausal women. Ethnicity was an important aspect of the work, as Hands Inc. was keen to reach women who might not otherwise access interventions. All course participants were Black British (as were two of the three facilitators). Course attendees reported reduced menopausal symptoms as well as improvements in mood and the quality of their lives. PMID- 29320951 TI - Glutathione conjugated polyethylenimine on the surface of Fe3O4 magnetic nanoparticles as a theranostic agent for targeted and controlled curcumin delivery. AB - Theranostics with the ability to simultaneous monitoring of treatment progress and controlled delivery of therapeutic agents has become as an emerging therapeutic paradigm in cancer therapy. In this study, we have developed a novel surface functionalized iron oxide nanoparticle using polyethyleneimine and glutathione for targeted curcumin (CUR) delivery and acceptable pH sensitive character. The developed magnetic nanoparticles (MNPs) were physicochemically characterized by FT-IR, XRD, FE-SEM and TEM. The MNPs was obtained in spherical shape with diameter of 50 nm. CUR was efficiently loaded into the MNPs and then in vitro release analyses were evaluated and showed that the prepared MNPs could release higher amount of CUR in acidic medium compared to neutral medium due to the pH sensitive property of the coated polymer. MTT assay confirmed the superior toxicity of CUR loaded MNPs compared to the control nanoparticles. Higher cellular uptake of the MNPs than negative control cells was demonstrated in SK-N MC cell line. In vitro assessment of MRI properties showed that synthesized MNPs could be used as MRI imaging agent. Furthermore, according to hemolysis assay, the developed formulation exhibited suitable hemocompatibility. In vivo blood circulation analysis of the MNPs also exhibited enhanced serum bioavailability up to 2.5 fold for CUR loaded MNPs compared with free CUR. PMID- 29320953 TI - Spaceflight Activates Protein Kinase C Alpha Signaling and Modifies the Developmental Stage of Human Neonatal Cardiovascular Progenitor Cells. AB - Spaceflight impacts cardiovascular function in astronauts; however, its impact on cardiac development and the stem cells that form the basis for cardiac repair is unknown. Accordingly, further research is needed to uncover the potential relevance of such changes to human health. Using simulated microgravity (SMG) generated by two-dimensional clinorotation and culture aboard the International Space Station (ISS), we assessed the effects of mechanical unloading on human neonatal cardiovascular progenitor cell (CPC) developmental properties and signaling. Following 6-7 days of SMG and 12 days of ISS culture, we analyzed changes in gene expression. Both environments induced the expression of genes that are typically associated with an earlier state of cardiovascular development. To understand the mechanism by which such changes occurred, we assessed the expression of mechanosensitive small RhoGTPases in SMG-cultured CPCs and observed decreased levels of RHOA and CDC42. Given the effect of these molecules on intracellular calcium levels, we evaluated changes in noncanonical Wnt/calcium signaling. After 6-7 days under SMG, CPCs exhibited elevated levels of WNT5A and PRKCA. Similarly, ISS-cultured CPCs exhibited elevated levels of calcium handling and signaling genes, which corresponded to protein kinase C alpha (PKCalpha), a calcium-dependent protein kinase, activation after 30 days. Akt was activated, whereas phosphorylated extracellular signal-regulated kinase levels were unchanged. To explore the effect of calcium induction in neonatal CPCs, we activated PKCalpha using hWnt5a treatment on Earth. Subsequently, early cardiovascular developmental marker levels were elevated. Transcripts induced by SMG and hWnt5a-treatment are expressed within the sinoatrial node, which may represent embryonic myocardium maintained in its primitive state. Calcium signaling is sensitive to mechanical unloading and directs CPC developmental properties. Further research both in space and on Earth may help refine the use of CPCs in stem cell-based therapies and highlight the molecular events of development. PMID- 29320952 TI - Fatty acid binding protein-4 is associated with disability in multiple sclerosis patients. AB - BACKGROUND: Increased adiposity is a risk factor for multiple sclerosis (MS) and is associated with increased disability scores. Adipokines may mediate the effects of adiposity on MS disease course. OBJECTIVE: The objective of this study is to examine the association between the adipokines (leptin and fatty acid binding protein-4, FABP4) and clinical course in individuals with MS. METHODS: Subjects (18-65 years) with relapsing-remitting MS or clinically isolated syndrome and <10 year disease duration were selected from a longitudinal clinical study. Cross-sectional and longitudinal models assessed the relationship between two adipokines (leptin and FABP4) and disease severity in women and men, adjusting for age, disease duration and disease type, Vitamin D level, testosterone level, and as well by body mass index (BMI). RESULTS: Mean age of subjects ( N = 163, 56% women) was 39.3 years. Higher FABP4 levels were associated with higher Expanded Disability Status Scale (EDSS) scores in women in both univariate and multivariate analyses (odds ratio: 1.30; p = 0.005). In men, higher FABP4 level was significantly associated with change in EDSS over time (estimate: 0.0062; p = 0.035). We found no association of FABP4 levels with time to next relapse or a measure of processing speed. CONCLUSION: FABP4 levels may be associated with increased disability in both men and women with MS independent of effects of BMI and other hormones. Future studies should expand these analyses and further explore downstream mechanisms of adiposity-related effects in MS. PMID- 29320954 TI - The value of fixed rasburicase dosing versus weight-based dosing in the treatment and prevention of tumor lysis syndrome. AB - Background Rasburicase is a recombinant urate oxidase enzyme used for the treatment and prevention of tumor lysis syndrome. Our objective was to assess the efficacy of indication-based, low-dose rasburicase administration compared to the Food and Drug Administration-approved weight-based dosing. Methods This was a retrospective cohort study utilizing data from a tertiary medical center including patients admitted from 2012 to 2016, who received at least one dose of rasburicase. The primary outcome was achieving a uric acid level less than 7.5 mg/dl after a single dose of rasburicase in the preprotocol (Food and Drug Administration-approved weight-based dosing) and postprotocol (indication-based, low-dose) groups. Secondary outcomes included the change in uric acid levels between the pre- and postprotocol groups, adherence to the new institutional protocol, need for repeat rasburicase doses, and a cost analysis. Results Sixty four patients received at least one dose of rasburicase between 1 January 2012 and 1 December 2016. Twenty-seven (79.4%) doses in the preprotocol group and 28 (82.4%) doses in the postprotocol group successfully achieved a uric acid level less than 7.5 mg/dl after a single dose of rasburicase (p=1.000). The average total monthly cost of rasburicase was reduced by 59.9% after adoption of the new protocol. Conclusions Indication-based, low-dose rasburicase displayed significantly more value when compared to weight-based dosing as shown by achieving cost savings without compromising clinical efficacy. PMID- 29320955 TI - Therapeutic Roles of Statins in Gynecology and Obstetrics: The Current Evidence. AB - INTRODUCTION: Statins are a class of drugs, which act by inhibiting the rate limiting enzyme of cholesterol biosynthesis (3-hydroxy-3-methyl-glutaryl-CoA reductase). The inhibition of mevalonate synthesis leads to subsequent inhibition of downstream products of this pathway, which explains the pleiotropic effects of these agents in addition to their well-known lipid-lowering effects. Accumulating evidence suggests that statins might be beneficial in various obstetric and gynecologic conditions. METHODS: Literature searches were performed in PubMed and EMBASE for articles with content related to statins in obstetrics and gynecology. The findings are hereby reviewed and discussed. RESULTS: Inhibition of mevalonate pathway leads to subsequent inhibition of downstream products such as geranyl pyrophosphate, farnesyl pyrophosphate, and geranylgeranyl pyrophosphate. These products are required for proper intracellular localization of several proteins, which play important roles in signaling pathways by regulating membrane trafficking, motility, proliferation, differentiation, and cytoskeletal organization. The pleiotropic effects of statins can be summarized in 4 categories: antiproliferative, anti-invasive, anti-inflammatory, and antiangiogenic. The growing body of evidence is promising for these agents to be beneficial in endometriosis, polycystic ovary syndrome, adhesion prevention, ovarian cancer, preeclampsia, and antiphospholipid syndrome. Although in vivo studies showed varying degrees of benefit on fibroids and preterm birth, appropriately designed clinical trials are needed to make definitive conclusions. CONCLUSION: Statins might play a role in the treatment of endometriosis, polycystic ovary syndrome, adhesion prevention, ovarian cancer, preeclampsia, and antiphospholipid syndrome. PMID- 29320948 TI - The profiles of soluble adhesion molecules in the "great obstetrical syndromes". AB - OBJECTIVE: The objective of this study was to determine the profiles of maternal plasma soluble adhesion molecules in patients with preeclampsia, small-for gestational-age (SGA) fetuses, acute pyelonephritis, preterm labor with intact membranes (PTL), preterm prelabor rupture of the membranes (preterm PROM), and fetal death. MATERIALS AND METHODS: A cross-sectional study was conducted to determine maternal plasma concentrations of sE-selectin, sL-selectin, and sP selectin as well as sICAM-1, sVCAM-1, and sPECAM-1 in patients with (1) an uncomplicated pregnancy (control, n = 100); (2) preeclampsia (n = 94); (3) SGA fetuses (in women without preeclampsia/hypertension, n = 45); (4) acute pyelonephritis (n = 25); (5) PTL (n = 53); (6) preterm PROM (n = 24); and (7) fetal death (n = 34). Concentrations of soluble adhesion molecules and inflammatory cytokines (tumor necrosis factor (TNF)-alpha and interleukin (IL)-8) were determined with sensitive and specific enzyme-linked immunoassays. RESULTS: In comparison to women with a normal pregnancy, (1) women with preeclampsia had higher median concentrations of sE-selectin, sP-selectin, and sVCAM-1, and a lower concentration of sL-selectin (all p values < .001); (2) patients with SGA fetuses had higher median concentrations of sE-selectin, sP-selectin, and sVCAM-1 (all p values < .05); (3) patients with a fetal death had higher median concentrations of sE-selectin and sP-selectin (all p values < .05); (4) patients with acute pyelonephritis had higher median plasma concentrations of sE-selectin, sICAM-1, and sVCAM-1 (all p values < .001); (5) patients with preeclampsia and acute pyelonephritis, plasma concentrations of sVCAM-1, sE-selectin, and sP selectin correlated with those of the proinflammatory cytokines TNF-alpha and interleukin (IL)-8 (all p values < .05); (6) patients with PTL had a higher median concentration of sP-selectin and a lower median concentration of VCAM-1 (all p values < .05); and (7) women with preterm PROM had lower median concentrations of sL-selectin and sVCAM-1 (all p values < .05). CONCLUSIONS: The results of this study show that endothelial cell activation/dysfunction reflected by the plasma concentration of sE-selectin is not specific to preeclampsia but is present in pregnancies complicated by SGA fetuses, acute pyelonephritis, and fetal death. Collectively, we report that each obstetrical syndrome appears to have a stereotypical profile of soluble adhesion molecules in the peripheral circulation. PMID- 29320956 TI - Transvaginal Elastosonography as an Imaging Technique for Diagnosing Adenomyosis. AB - To test the hypothesis that the lesional stiffness as measured by transvaginal elastosonography (TVESG) correlates with the extent of fibrosis in adenomyotic (AM) lesions, and thus TVESG can be used to diagnose AM, we conducted 2 studies. The first evaluated the relationship, if any, between lesional stiffness and lesional histology in 35 women with histologically confirmed AM in comparison with tissue stiffness in 11 control myometrial (CM) and 8 uterine fibroids (UFs) tissue samples. The second validated the relationship between lesional stiffness and the severity of dysmenorrhea and the amount of menses in AM patients by recruiting 112 patients diagnosed with AM, 67 with UF, and 130 controls. Transvaginal ultrasound and TVESG were both performed. We found that the stiffness of AM lesions was significantly higher than that of UF, which, in turn, was significantly higher than that of CM. Lesional stiffness correlated positively with uterine size and the extent of lesional fibrosis but negatively with E-cadherin and progesterone receptor expression levels. Lesional stiffness also correlated with the severity of dysmenorrhea as well as the amount of menses. Thus, TVESG can improve the diagnostic accuracy for AM, especially in differential diagnosis of AM from UF. The correlation between lesional stiffness and the extent of fibrosis and hormonal receptor expression and the severity of symptomology strongly suggests that TVESG not only can provide an instant assessment of the developmental stage of AM lesions but also may be used to guide the choice of the best treatment modality for the patient. PMID- 29320957 TI - Cardiovascular and Metabolic Health of 74 Children From Women Previously Diagnosed With Polycystic Ovary Syndrome in Comparison With a Population-Based Reference Cohort. AB - Women with polycystic ovary syndrome (PCOS) have compromised cardiovascular health profiles and an increased risk of pregnancy complications. In order to evaluate potential consequences, we aim to compare the cardiovascular and metabolic health of the children from women with PCOS with a population-based reference cohort. We included children from women with PCOS between the age of 2.5 to 4 years (n = 42) and 6 to 8 years (n = 32). The reference groups consisted of 168 (3-4 years old) and 130 children (7-8 years old). In an extensive cardiovascular screening program, we measured anthropometrics and blood pressure (all children), heart function and vascular rigidity (young children), metabolic laboratory assessment and carotid intima thickness (old age-group). Results showed that young PCOS offspring have a significantly lower diastolic blood pressure (beta = 2.3 [95% confidence interval, CI: 0.5-4.0]) and higher aortic pulse pressure (beta = -1.4 [95% CI: -2.5 to -0.2]), compared to the reference population. Furthermore, a higher left ventricle internal diameter but a lower tissue Doppler imaging of the right wall in systole compared to the reference group was found. Older offspring of women with PCOS presented with a significantly lower breast and abdominal circumference, but higher triglycerides (beta = -0.1 [95% CI: -0.2 to -0.1]), LDL-cholesterol (beta = -0.4 [95% CI: -0.6 to -0.1]), and higher carotid intima-media thickness (beta = -31.7 [95% CI: -46.6 to -16.9]) compared to the reference group. In conclusion, we observe subtle but distinct cardiovascular and metabolic abnormalities already at an early age in PCOS offspring compared to a population-based reference group, despite a lower diastolic blood pressure, breast, and abdominal circumference. These preliminary findings require confirmation in independent data sets. PMID- 29320958 TI - Great Debates in Vascular Medicine: Should all inferior vena cava (IVC) filters be removed? PMID- 29320960 TI - 39th Annual Meeting of the Society for Medical Decision Making Pittsburgh, Pennsylvania, October 22-25, 2017. PMID- 29320959 TI - Factor V Leiden paradox in a middle-aged Swedish population: A prospective study. AB - Few prospective studies have examined the factor V paradox: factor V Leiden (FVL) is a stronger risk factor for deep venous thrombosis (DVT) than for pulmonary embolism (PE). The present study, to the best of our knowledge, is the first population-based study aimed to examine the relationship between FVL and incidence of venous thromboembolism (VTE), DVT and PE in a prospective cohort study of middle-aged Swedish individuals. FVL was determined in 4890 subjects (aged 46-68 years, 57% women) from the general population without previous VTE or cancer, who participated in the Malmo Diet and Cancer study between 1991 and 1994. Incident cases of VTE were identified from the Swedish patient register during a mean follow-up of 15.6 years. Of 4890 subjects with determination of FVL (10.2% carriers), 220 had VTE during follow-up (113 DVT, 78 PE, 29 both). Incidence of VTE was significantly higher in subjects with heterozygous and homozygous FVL: adjusted hazard ratios (HR) were 1.8 (95% CI 1.3-2.6, p=0.001) and 6.5 (2.1-21, p=0.001), respectively. The population attributable fraction was 8.7% for FVL. Adjusted HRs for DVT were 2.2 (1.4-3.3, p<0.001) for heterozygotes and 3.3 (0.5-24, p=0.233) for homozygotes. Adjusted HRs for PE were 1.2 (0.65 2.2, p=0.582) for heterozygotes and 8.7 (2.1-36, p=0.003) for homozygotes. The FVL paradox was confirmed for heterozygotes for FVL. However, homozygotes for FVL had a high risk for PE, suggesting that the FVL paradox is related to the carriership of one wild type and one mutated factor V allele. PMID- 29320962 TI - Replantation and revascularization of amputated upper limb appendages outcome and predicting the factors influencing the success rates of these procedures in a tertiary hospital: An 8-year retrospective, cross-sectional study. AB - PURPOSE: Worldwide advances in microsurgery have made salvaging of amputated hand via replantation and revascularization common procedures. The present study examines the outcome of these procedures in a tertiary hospital in Malaysia. METHODS: Patients with hand amputation who underwent replantation or revascularization from 2005 to 2012 were identified and reviewed for patient characteristics, amputation characteristics and survival rates. Successfully treated patients were interviewed to assess the functional outcome using Quick Disability of the Arm, Shoulder and Hand (Quick-DASH) questionnaire and Michigan Hand Outcome Questionnaire (MHQ). Statistical analysis was performed to evaluate outcome and elicit predictive factors. RESULTS: Fifty-five patients were enrolled: 37 (67.3%) underwent replantation and 18 (32.7%) underwent revascularization. The overall success rate of 78% ( n = 43) was within the range of previously reported data (61.6% to 96.0%). Ischaemic time <6 h provided significantly better survival rates ( p < 0.05). Functional outcomes were successfully assessed in 34 patients (79%), at a mean follow-up of 40 months (range 11-93 months). The overall Quick-DASH and MHQ scores were 42.82 +/- 23.69 and 60.94 +/- 12.82, respectively. No previous reports of functional outcome were available for comparison. Both Quick-DASH ( p = 0.001) and MHQ scores ( p < 0.001) were significantly higher for finger injuries, followed by thumb, wrist and palm injuries. CONCLUSION: Ischaemic time and level of injury are important predictors of success rate of replantation and revascularization of amputated upper limb appendages. PMID- 29320963 TI - Long-term clinical and radiographic results of the cementless Spotorno stem in Japanese patients: A more than 15-year follow-up. AB - PURPOSE: Although previous studies have reported encouraging results of cementless Spotorno (CLS) stem, studies with more than 15 years of follow-up are rare. The objective of this study is to investigate the long-term results of CLS stem and the factors potentially influencing the outcomes. METHODS: The clinical and radiographic data of 79 hips (64 patients) were reviewed. Clinical outcome was determined using the Japanese Orthopedic Association's hip scoring system (JOA hip score). Survival rate was assessed by Kaplan-Meier survival analysis. The main end point for survival analysis was revision of stem. The correlations between patient demographics, radiographic factors, and stem survival rates were analyzed. RESULTS: At a mean follow-up period of 20.1 years, the mean JOA hip score at final follow-up was 84.7 points. Stem survival rate for all revisions was 97.5% at 20 years, and stem survival for aseptic loosening was 98.9%. Varus alignment had a significant negative influence on the survival of the femoral stem. CONCLUSION: This study demonstrates acceptable long-term clinical and radiographic results of the CLS stem in Japanese patients. Caution should be exercised to avoid varus stem alignment. PMID- 29320964 TI - Autologous US-guided PRP injection versus US-guided focal extracorporeal shock wave therapy for chronic lateral epicondylitis: A minimum of 2-year follow-up retrospective comparative study. AB - PURPOSE: To compare the efficacy of two independent groups of patients treated with ultrasound (US)-guided extracorporeal shock wave (ESW) therapy and with US guided injection of platelet-rich plasma (PRP) for chronic lateral epicondylitis (LE) with a minimum of 2-year follow-up. METHODS: We retrospectively evaluated 63 patients treated for chronic LE (31 patients with autologous US-guided PRP injection and 32 patients with US-guided focal ESW therapy) from 2009 to 2014. All the patients were evaluated by means of Roles-Maudsley (RM) score, quick Disabilities of Arm, Shoulder, and Hand (QuickDASH) score, visual analogic scale (VAS) and patient-rated tennis elbow evaluation (PRTEE) to retrospectively assess the pain relief, level of activity, the self-reported function and subjective satisfaction at minimum of 2-year follow-up. RESULTS: Both US-guided autologous PRP injection and US-guided focal ESW administration proved effective in chronic LE with significant improvement in the QuickDASH, VAS, RM and PRTEE scores ( p < 0.0001). No adverse effects or complications were recorded in any groups. No differences were found in recurrence rate and final results of the QuickDASH, VAS, RM and PRTEE scores between the two groups ( p > 0.05). The mean time between treatment and symptom resolution was significantly shorter for the PRP treatment ( p = 0.0212); furthermore, the mean time to return to the normal activities was quicker for PRP group ( p = 0.0119). CONCLUSION: Both PRP injection and ESW therapy are feasible and safe options for the treatment of chronic LE with low risk of complications and with good long-term follow-up results. US-guided PRP injection has quick efficacy when compared with US-guided focal ESW therapy. PMID- 29320965 TI - Alterations of the Gut Microbiota in Hashimoto's Thyroiditis Patients. AB - BACKGROUND: Hashimoto's thyroiditis (HT) is an organ-specific autoimmune disease in which both genetic predisposition and environmental factors serve as disease triggers. Many studies have indicated that alterations in the gut microbiota are important environmental factors in the development of inflammatory and autoimmune diseases. A comparative analysis was systematically performed of the gut microbiota in HT patients and healthy controls. METHODS: First, a cross-sectional study of 28 HT patients and 16 matched healthy controls was conducted. Fecal samples were collected, and microbiota were analyzed using 16S ribosomal RNA gene sequencing. Second, an independent cohort of 22 HT patients and 11 healthy controls was used to evaluate the diagnostic potential of the selected biomarkers. RESULTS: Similar levels of bacterial richness and diversity were found in the gut microbiota of HT patients and healthy controls (p = 0.11). A detailed fecal microbiota Mann-Whitney U-test (Q value <0.05) revealed that the abundance levels of Blautia, Roseburia, Ruminococcus_torques_group, Romboutsia, Dorea, Fusicatenibacter, and Eubacterium_hallii_group genera were increased in HT patients, whereas the abundance levels of Fecalibacterium, Bacteroides, Prevotella_9, and Lachnoclostridium genera were decreased. A correlation matrix based on the Spearman correlation distance confirmed correlations among seven clinical parameters. Additionally, the linear discriminant analysis effect size method showed significant differences in 27 genera between the two groups that were strongly correlated with clinical parameters. The linear discriminant analysis value was used to select the first 10 species from the 27 different genera as biomarkers, achieving area under the curve values of 0.91 and 0.88 for exploration and validation data, respectively. CONCLUSIONS: Characterization of the gut microbiota in HT patients confirmed that HT patients have altered gut microbiota and that gut microbiota are correlated with clinical parameters, suggesting that microbiome composition data could be used for disease diagnosis. Further investigation is required to understand better the role of the gut microbiota in the pathogenesis of HT. PMID- 29320966 TI - Evaluating barriers to adopting telemedicine worldwide: A systematic review. AB - Introduction and objective Studies on telemedicine have shown success in reducing the geographical and time obstacles incurred in the receipt of care in traditional modalities with the same or greater effectiveness; however, there are several barriers that need to be addressed in order for telemedicine technology to spread. The aim of this review is to evaluate barriers to adopting telemedicine worldwide through the analysis of published work. Methods The authors conducted a systematic literature review by extracting the data from the Cumulative Index of Nursing and Allied Health Literature (CINAHL) and PubMed (MEDLINE) research databases. The reviewers in this study analysed 30 articles (nine from CINAHL and 21 from Medline) and identified barriers found in the literature. This review followed the checklist from Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2009. The reviewers organized the results into one table and five figures that depict the data in different ways, organized by: barrier, country-specific barriers, organization-specific barriers, patient-specific barriers, and medical-staff and programmer-specific barriers. Results The reviewers identified 33 barriers with a frequency of 100 occurrences through the 30 articles. The study identified the issues with technically challenged staff (11%), followed by resistance to change (8%), cost (8%), reimbursement (5%), age of patient (5%), and level of education of patient (5%). All other barriers occurred at or less than 4% of the time. Discussion and conclusions Telemedicine is not yet ubiquitous, and barriers vary widely. The top barriers are technology-specific and could be overcome through training, change management techniques, and alternating delivery by telemedicine and personal patient-to-provider interaction. The results of this study identify several barriers that could be eliminated by focused policy. Future work should evaluate policy to identify which one to lever to maximize the results. PMID- 29320967 TI - Dolutegravir monotherapy in HIV-1-suppressed patients: A feasible regimen in real life. PMID- 29320968 TI - HIV in prison: results from a national prison census in Peru. PMID- 29320969 TI - Differential expression of TGFbeta isoforms in breast cancer highlights different roles during breast cancer progression. AB - While TGFbeta plays a critical role in tumor formation and progression, the role and contribution of its three different isoforms remain unclear. In this study, we aimed at elucidating the prognostic value of the TGFbeta isoforms and assessed their expression levels in breast cancer patients at different stages of the disease. We found higher levels of TGFbeta1 and TGFbeta3 in cancer patients compared to normal tissues, with no significant changes in TGFbeta2 expression. Similarly, TGFbeta1 and TGFbeta3, but not TGFbeta2, showed higher expression levels in advanced lymph node-positive and metastatic tumors, suggesting different roles for the different isoforms in tumor progression and the metastatic process, while in the least aggressive molecular subtype (luminal A), expression of the three TGFbeta isoforms significantly correlated with expression of both TGFbeta receptors, such correlation only occurred between TGFbeta1 and TGFbeta3 and the TGFbeta type II receptor (TbetaRII) in the highly aggressive basal-like subtype. Interestingly, a distinct and somehow opposite pattern was observed in HER-2 tumors, only showing significant association pattern between TGFbeta2 and the TGFbeta type I receptor (TbetaRI). Finally, the three TGFbeta isoforms showed distinct association patterns with patient outcome depending on the different molecular subtype, highlighting context-dependent, differential prognostic values. PMID- 29320970 TI - Modelling endurance and resumption times for repetitive one-hand pushing. AB - This study's objective was to develop models of endurance time (ET), as a function of load level (LL), and of resumption time (RT) after loading as a function of both LL and loading time (LT) for repeated loadings. Ten male participants with experience in construction work each performed 15 different one handed repetaed pushing tasks at shoulder height with varied exerted force and duration. These data were used to create regression models predicting ET and RT. It is concluded that power law relationships are most appropriate to use when modelling ET and RT. While the data the equations are based on are limited regarding number of participants, gender, postures, magnitude and type of exerted force, the paper suggests how this kind of modelling can be used in job design and in further research. Practitioner Summary: Adequate muscular recovery during work-shifts is important to create sustainable jobs. This paper describes mathematical modelling and presents models for endurance times and resumption times (an aspect of recovery need), based on data from an empirical study. The models can be used to help manage fatigue levels in job design. PMID- 29320971 TI - The effect of nutritional intervention on the lipid profile and dietary intake of adolescents with juvenile systemic lupus erythematosus: a randomized, controlled trial. AB - Objective This study sought to evaluate the effects of a nutritional intervention on the lipid metabolism biomarkers associated with cardiovascular risk, and their variation over time, in juvenile systemic lupus erythematosus (JSLE) patients. This study also investigated the relationships between these biomarkers and dietary intake, nutritional status, disease variables, and medication used. Methods A total of 31 10- to 19-year-old female adolescents with JSLE for at least six months were analyzed. The participants were randomly allocated to two groups: nutritional intervention or control. The intervention group received verbal and printed nutritional instructions once per month over nine months. Before and after the intervention, the participants underwent assessments of anthropometry; dietary intake; physical activity; socioeconomic status; total cholesterol and fractions; triglycerides; apolipoprotein A (Apo A-I); apolipoprotein B (Apo B); paraoxonase (PON) activity (a) and amount (q); myeloperoxidase (MPO); and small, dense LDL-c (sdLDL) particles. Results After nine months, we found significant reductions in the calorie, carbohydrate, total fat, saturated fat, and trans fat intakes in the intervention compared with the control group over time. The PONa/HDL-c ratio increased by 3.18 U/ml/mg/dl in the intervention group and by 0.63 U/ml/mg/dl in the control group ( p = 0.037). Unlike the intervention group, the sdLDL levels of the control group worsened over time ( p = 0.018). Conclusion The present study detected a reduction in calorie and fat intake, which indicates an improvement of HDL-c function and possible protection against cardiovascular risk for the intervention group. PMID- 29320972 TI - Rituximab use in pediatric lupus anticoagulant hypoprothrombinemia syndrome - report of three cases and review of the literature. AB - Lupus anticoagulant hypoprothrombinemia syndrome (LA-HPS) is a rare condition that may predispose both to thrombosis and bleeding due to positive lupus anticoagulant (LA) and factor II (FII) deficiency. It can be seen in association with infections or systemic lupus erythematosus (SLE) and may require glucocorticoids (GCs) and/or immunosuppressive medications. Pediatric LA-HPS cases in the literature and three cases that received only rituximab (RTX) for LA HPS (in addition to GCs) at two institutions between January 2010 and June 2017 were analyzed descriptively. Pediatric LA-HPS cases (<=18 years) with bleeding or thrombotic events were included. Information obtained included demographics, presenting symptoms, diagnoses, treatments, pre-/post-treatment prothrombin time (PT)/partial thromboplastin time (PTT)/LA/FII levels, and outcomes. In addition to three LA-HPS cases identified at our institutions, as of June 2017, 37 articles reported 54 pediatric LA-HPS cases (mean age: 8 years (0.9-17 years); female/male: (2:1); viral illness 27 (50%), SLE 20 (37%), and other six (11%)). All cases had a positive LA and FII deficiency (range: 0%-40%). All cases presented with bleeding diathesis and were treated with various regimens, but there was no reported use of RTX. The purpose of this report is to describe the novel use of RTX as a steroid-sparing agent in three pediatric SLE cases and to systematically review the literature on pediatric cases of LA-HPS. PMID- 29320973 TI - Secular trends in the impact factors of SLE publications over a 45-year period-a systematic review. AB - Objective We assessed publication bias in the field of systemic lupus erythematosus (SLE) by conducting a search of randomized, controlled trials (RCTs) on SLE therapies that had been published over the past 45 years. Our aim was to assess a potential publication bias by determining whether RCTs reporting positive results, RCTs with placebo arms, biologics RCTs, and industry-funded RCTs are more likely to be published in journals with higher impact factors (IFs). Methods We conducted a systematic review of all RCTs registered in PubMed between 1 January 1975 and 1 November 2016. Each RCT was classified as having a positive result (PR) or a negative result (NR). The IF of each journal was determined for the year of publication. Results Our search yielded 233 relevant RCTs. There was no significant difference in IFs between studies with NRs and those with PRs or between studies that were financially supported by commercial companies compared to studies that were not. However, there was a significant correlation between sample size and the journal's IF. Conclusions IF scores of RCTs in the field of SLE are influenced by sample size and not biased by either a tendency to report PRs or by being funded by pharmaceutical companies or any other commercial sources. PMID- 29320974 TI - Head to head comparison of adverse effects and efficacy between high dose deflazacort and high dose prednisolone in systemic lupus erythematosus: a prospective cohort study. AB - Background Deflazacort (DFZ), an oxazoline derivative of prednisolone (PDN), has a dose equivalence of 1.2:1 (mg) to PDN. No study to date has compared adverse effects and efficacy of high doses of DFZ as against high-dose PDN in systemic lupus erythematosus (SLE). Objectives To compare adverse effects of high dose DFZ and PDN in SLE patients, especially in terms of cushingoid features and gain in body weight, 3 and 6 months after initiation of these agents. Methods In both the steroid arms, the following outcome parameters were assessed at 3 and 6 months: (a) cushingoid features by Cushing's Severity Index (CSI) (b) hirsutism by modified Ferriman Gallwey score (c) weight gain by difference (Delta, delta) of weight (in kilograms). Results Patients on PDN had 1.6 kg (3.2%) and 2 kg (5.1%) higher median weight gain as compared to those on DFZ at 3 and 6 months respectively ( p = 0.012 and 0.001). PDN caused 10% and 22.2% higher increment in median hirsutism scores as compared to DFZ at 3 months and 6 months follow-up, respectively ( p = 0.004 and 0.002). PDN caused 100% higher increase in median CSI scores than DFZ at 6 months ( p = 0.03). There was no significant difference by generalized estimation equation between the groups with respect to changes in SLEDAI, renal SLEDAI, anti-dsDNA titres and C3/C4 levels. There were two serious infections (requiring hospitalization/intravenous antibiotics) in the PDN group, while none in the DFZ group. Conclusion Comparable intake and tapering of high dose DFZ and PDN in active SLE revealed 2-fold less weight gain, 2.5-fold less hirsutism and 1.5-fold lower cushingoid severity index as well as lower glycaemic elevation in the DFZ group as compared to PDN group. Both had similar efficacy. PMID- 29320975 TI - Systemic lupus erythematosus with inflammatory bowel disease-ulcerative colitis: case report. AB - A 30-year-old female presented to the rheumatology outpatient clinic of the Internal Medicine Department, Ain Shams University Hospital, Cairo, Egypt, complaining of a large right leg ulcer consistent with pyoderma gangrenosum. There was history of recurrent attacks of bleeding per rectum of one-year duration. During hospitalization she noticed blurring of vision in the left eye with diffuse blackish discoloration of the feet and toes, consistent with small vessel vasculitis. Colonoscopy with biopsy and histopathology confirmed the diagnosis of inflammatory bowel disease-ulcerative colitis (IBD-UC). Meanwhile, the patient fulfilled the SLICC classification criteria for systemic lupus erythematosus (SLE): recurrent oral ulcers, positive antinuclear antibody testing, proteinuria >0.5 gm/24-hour urine, positive test for lupus anticoagulant and consumed C3 complement component. Herein we report a rare case of coexistence of SLE and IBD-UC. PMID- 29320976 TI - The mediational role of helplessness in psychological outcomes in systemic lupus erythematosus. AB - Objective Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that can result in disability and psychological distress. Although pain has been associated with depressive symptomatology and stress in SLE, a paucity of theoretical models have been used to explain the relationship between pain and psychological distress in this population. Thus, the present study examined helplessness as a mediator of the relationship between pain and psychological distress among patients with SLE. Methods Multiple mediation analysis was used to examine the hypothesis that learned helplessness mediates the relationship between pain and symptoms of anxiety, depression, and stress in a sample of patients with SLE ( N = 136) receiving medical care at Cedars Sinai Medical Center. Results The mean score on the Helplessness subscale was 14.5 ( SD = 5.4). Helplessness fully mediated the relationship between pain vitality and symptoms of anxiety (BCa 95% CI (-0.073, -0.015)), depression (BCa 95% CI (-0.502, 0.212)), and stress (BCa 95% CI (-0.063, -0.027)). Conclusion Participants reported a high level of perceived inability to control one's disease. Helplessness fully mediated the relationship between pain and measures of anxiety, depression, and perceived stress among patients with SLE. PMID- 29320977 TI - Ibrutinib targets microRNA-21 in multiple myeloma cells by inhibiting NF-kappaB and STAT3. AB - The oncogenic microRNA-21 contributes to the pathogenesis of multiple myeloma. Ibrutinib (also referred to as PCI-32765), an inhibitor of Bruton's tyrosine kinase, while its effects on multiple myeloma have not been well described. Here, we show that microRNA-21 is an oncogenic marker closely linked with progression of multiple myeloma. Moreover, ibrutinib attenuates microRNA-21 expression in multiple myeloma cells by inhibiting nuclear factor-kappaB and signal transducer and activator of transcription 3 signaling pathways. Taken together, our results suggest that ibrutinib is a promising potential treatment for multiple myeloma. Further investigation of mechanisms of ibrutinib function in multiple myeloma will be necessary to evaluate its use as a novel multiple myeloma treatment. PMID- 29320978 TI - Two-Vessel Branched Stent Graft for Severely Angulated Aortic Arch Aneurysm in a Jehovah's Witness. AB - Aneurysmal disease involving the origins of supra aortic vessels often requires complex open and/or endovascular repair that is not only associated with significant risk of mortality and morbidity but also often with perioperative blood loss requiring transfusion. We report a successful repair of a large thoracic aortic aneurysm (TAA) involving the aortic arch with a custom-made Bolton Relay 2-vessel branched thoracic aortic endograft in a 42-year-old Jehovah's Witness who would otherwise be very unlikely to survive an open repair. Branched thoracic aortic endografting offers a potentially safe, minimally invasive, and effective alternative for TAA disease involving the supra-aortic arteries, especially in patients who are at high risk of open surgery. PMID- 29320979 TI - Editorial: Natural Product Inhibitors of Enzymatic Targets in Anticancer Drug Discovery - Part I. PMID- 29320981 TI - Editorial: Early Recognition of Dementia in Primary Care- Current Issues and Concepts. PMID- 29320982 TI - Global identification, structural analysis and expression characterization of cytochrome P450 monooxygenase superfamily in rice. AB - BACKGROUND: The cytochrome P450 monooxygenases (CYP450, CYP, P450) catalyze numerous monooxygenation/hydroxylation reactions in biochemical pathways. Although CYP superfamily has been systematically studied in a few species, the genome-scale research about it in rice has not been done. RESULTS: In this study, a total of 355 CYPs encoded by 326 genes were identified in japonica genome. The OsCYP genes are classified into 10 clans including 45 families according to phylogenetic analysis. More than half of the genes are distributed in 53 tandem duplicated gene clusters. Intron-exon structure of OsCYPs exhibits highly conserved and specificity within a family, and divergences of duplicate genes in gene structure result in non-functionalization, neo-functionalization or sub functionalization. Selection pressure analysis showed that rice CYPs are under purifying selection. The microarray data analysis shows that some genes are tissue-specific expression, such as OsCYP710A5 and OsCYP71X14 in endosperm, OsCYP99A3 and OsCYP78A16 in root and OsCYP93G2 and OsCYP97D7 in leaf. Analysis of RNA-seq data derived from rice leaf developmental gradient indicates that some OsCYPs exhibit zone-specific expression patterns. OsCYP87C2, OsCYP96B5, OsCYP96B8 and OsCYP84A5 were specifically expressed in leaf base and transitional zone. The transcripts of lineages II and IV-1 members were highly abundant in maturing zone. Eighty three OsCYPs are differentially expressed in response to drought stress, of which OsCYP51G3, OsCYP709C9, OsCYP709C5, OsCYP81A6, OsCYP72A18 and OsCYP704A5 are strongly induced and OsCYP78A16, OsCYP89C9 and OsCYP704A5 are down regulated significantly, and some of the results were validated by qPCR. And 23 up-regulated and 17 down-regulated genes are specific to Osbhlh148 mutation under drought stress. Compared to those in wild type, the changes in transcript levels of several genes are slight in the mutant, such as OsCYP51G3, OsCYP94C2, OsCYP709C9 and OsCYP709C5. CONCLUSION: The whole-genomic analysis of rice P450 superfamily provides a clue to understanding biological function of OsCYPs in development regulation and drought stress response, and is helpful to rice molecular breeding. PMID- 29320983 TI - Independent association of resting energy expenditure with blood pressure: confirmation in populations of the African diaspora. AB - BACKGROUND: Obesity is a major risk factor for hypertension, however, the physiologic mechanisms linking increased adiposity to elevations in blood pressure are not well described. An increase in resting energy expenditure (REE) is an obligatory consequence of obesity. Previous survey research has demonstrated that REE is an independent predictor of blood pressure, and eliminates the co-linear association of body mass index. This observation has received little attention and there have been no attempts to provide a causal explanation. METHODS: At baseline in an international comparative study on obesity, 289 participants aged 25-44 were recruited from communities in the US, the Seychelles, Ghana and South Africa and had REE measured with indirect calorimetry. All participants were thought to be free of major illness. RESULTS: In multivariate regression models, both systolic and diastolic blood pressure were positively associated with REE (p < 0.01), while body mass index and fat mass were negatively correlated with systolic blood pressure (p < 0.01, and p < 0.05 respectively), but not diastolic blood pressure. CONCLUSIONS: These data confirm previous reports and suggest that a common physiologic abnormality links REE and blood pressure. Elevated catecholamines, a putative metabolic characteristic of obesity, is a possible candidate to explain this association. The direct role of excess adipose tissue is open to question. PMID- 29320984 TI - Prevalence and antibiotic susceptibility of Uropathogens from cases of urinary tract infections (UTI) in Shashemene referral hospital, Ethiopia. AB - BACKGROUND: Urinary tract infection (UTI) remains to be one of the most common infectious diseases diagnosed in developing countries. And a widespread use of antibiotics against uropathogens has led to the emergence of antibiotic resistant species. A laboratory based cross-sectional survey was conducted in Shashemene referral hospital to determine the prevalence and antibiotic susceptibility of uropathogens. METHODS: We have collected 384 clean catch mid-stream urine samples from all suspected UTI outpatients using sterile screw capped container. The urine samples were cultured and processed for subsequent uropathogens isolation. The isolated pure cultures were grown on BiOLOG Universal Growth agar (BUG) and identified using GEN III OmniLog(r) Plus ID System identification protocols. The identified species were then exposed to selected antibiotics to test for their susceptibility. RESULTS: The overall prevalence of urinary tract infection in the area was 90.1%. Most frequently isolated uropathogen in our study was Escherichia coli (39.3%). While, Staphylococcus species (20.2%), Leuconostoc species (11.4%), Raoultella terrigena/Klebsiella spp./ (8.4%), Salmonella typhimurium (6.3%), Dermacoccus nishinomiyaensis (6.3%), Citerobacter freundii (5.2%) and Issatchenkia orientalis/Candida krusei/ (2.7%) were the other isolates. We find that the relationship between uropathogens and some of UTI risk factors was statistically significant (P < 0.05). Gentamicin was the most effective drug against most of the isolates followed by chloramphenicol and nitrofurantoin. In contrast, amoxicillin, vancomycin and cephalexin were the antibiotics to which most of the isolates developed resistance. CONCLUSION: Urinary tract infection was highly prevalent in the study area and all uropathogens isolated developed a resistance against mostly used antibiotics. PMID- 29320985 TI - Chlorophyll fluorescence analysis revealed essential roles of FtsH11 protease in regulation of the adaptive responses of photosynthetic systems to high temperature. AB - BACKGROUND: Photosynthetic systems are known to be sensitive to high temperature stress. To maintain a relatively "normal" level of photosynthetic activities, plants employ a variety of adaptive mechanisms in response to environmental temperature fluctuations. Previously, we reported that the chloroplast-targeted AtFtsH11 protease played an essential role for Arabidopsis plants to survive at high temperatures and to maintain normal photosynthetic efficiency at moderately elevated temperature. To investigate the factors contributing to the photosynthetic changes in FtsH11 mutant, we performed detailed chlorophyll fluorescence analyses of dark-adapted mutant plants and compared them to Col-0 WT plants under normal, two moderate high temperatures, and a high light conditions. RESULTS: We found that mutation of FtsH11 gene caused significant decreases in photosynthetic efficiency of photosystems when environmental temperature raised above optimal. Under moderately high temperatures, the FtsH11 mutant showed significant 1) decreases in electron transfer rates of photosystem II (PSII) and photosystem I (PSI), 2) decreases in photosynthetic capabilities of PSII and PSI, 3) increases in non-photochemical quenching, and a host of other chlorophyll fluorescence parameter changes. We also found that the degrees of these negative changes for utilizing the absorbed light energy for photosynthesis in FtsH11 mutant were correlated with the level and duration of the heat treatments. For plants grown under normal temperature and subjected to the high light treatment, no significant difference in chlorophyll fluorescence parameters was found between the FtsH11 mutant and Col-0 WT plants. CONCLUSIONS: The results of this study show that AtFtsH11 is essential for normal photosynthetic function under moderately elevated temperatures. The results also suggest that the network mediated by AtFtsH11 protease plays critical roles for maintaining the thermostability and possibly structural integrity of both photosystems under elevated temperatures. Elucidating the underlying mechanisms of FtsH11 protease in photosystems may lead to improvement of photosynthetic efficiency under heat stress conditions, hence, plant productivity. PMID- 29320986 TI - Revealing Alzheimer's disease genes spectrum in the whole-genome by machine learning. AB - BACKGROUND: Alzheimer's disease (AD) is an important, progressive neurodegenerative disease, with a complex genetic architecture. A key goal of biomedical research is to seek out disease risk genes, and to elucidate the function of these risk genes in the development of disease. For this purpose, expanding the AD-associated gene set is necessary. In past research, the prediction methods for AD related genes has been limited in their exploration of the target genome regions. We here present a genome-wide method for AD candidate genes predictions. METHODS: We present a machine learning approach (SVM), based upon integrating gene expression data with human brain-specific gene network data, to discover the full spectrum of AD genes across the whole genome. RESULTS: We classified AD candidate genes with an accuracy and the area under the receiver operating characteristic (ROC) curve of 84.56% and 94%. Our approach provides a supplement for the spectrum of AD-associated genes extracted from more than 20,000 genes in a genome wide scale. CONCLUSIONS: In this study, we have elucidated the whole-genome spectrum of AD, using a machine learning approach. Through this method, we expect for the candidate gene catalogue to provide a more comprehensive annotation of AD for researchers. PMID- 29320987 TI - Effect of intracoronary agents on the no-reflow phenomenon during primary percutaneous coronary intervention in patients with ST-elevation myocardial infarction: a network meta-analysis. AB - BACKGROUND: Despite the restoration of epicardial flow after primary percutaneous coronary intervention (PPCI), myocardial reperfusion remains impaired in a significant proportion of patients. We performed a network meta-analysis to assess the effect of 7 intracoronary agents (adenosine, anisodamine, diltiazem, nicorandil, nitroprusside, urapidil, and verapamil) on the no-reflow phenomenon in patients with ST-elevation myocardial infarction (STEMI) undergoing PPCI. METHODS: Database searches were conducted to identify randomized controlled trials (RCTs) comparing the 7 agents with each other or with standard PPCI. Outcome measures included thrombolysis in myocardial infarction flow grade (TFG), ST-segment resolution (STR), left ventricular ejection fraction (LVEF), major adverse cardiovascular events (MACEs), and adverse events. RESULTS: Forty-one RCTs involving 4069 patients were analyzed. The addition of anisodamine to standard PPCI for STEMI was associated with improved post-procedural TFG, more occurrences of STR, and improvement of LVEF. The cardioprotective effect of anisodamine conferred a MACE-free survival benefit. Additionally, nitroprusside was regarded as efficient in improving coronary flow and clinical outcomes. Compared with standard care, adenosine, nicorandil, and verapamil improved coronary flow but had no corresponding benefits regarding cardiac function and clinical outcomes. The ranking probability for the 7 treatment drugs showed that anisodamine consistently ranked the highest in efficacy outcomes (TFG < 3, STR, LVEF, and MACEs). No severe adverse events, such as hypotension and malignant arrhythmia, were observed in patients treated with anisodamine. Network meta regression analysis showed that age, the time to reperfusion, and study follow-up did not affect the treatment effects. CONCLUSIONS: The intracoronary administration of anisodamine appears to improve myocardial reperfusion, cardiac function, and clinical outcomes in patients with STEMI undergoing PPCI. Given the limited quality and quantity of the included studies, more rigorous RCTs are needed to verify the role of this inexpensive and well-tolerated regimen. PMID- 29320988 TI - Prevalence and key radiographic spinal malalignment parameters that influence the risk for gastroesophageal reflux disease in patients treated surgically for adult spinal deformity. AB - BACKGROUND: Gastroesophageal reflux disease (GERD) is a factor that has a significant negative impact on the quality of life (QoL). Vertebral fractures and/or spinal malalignment may influence the frequency of GERD. However, the epidemiology and pathology of GERD in patients with adult spinal deformity (ASD) are still largely unknown. To establish the optimal surgical strategy for GERD in patients treated surgically for ASD, we sought to clarify the GERD prevalence, determine radiographically which spinal malalignment parameters influence GERD risk, and evaluate GERD improvement postoperatively. METHODS: Seventy-one consecutive patients with ASD who were treated with thoracolumbar corrective surgery and followed up for at least 1 year were enrolled. GERD was diagnosed by a gastroenterologist based on proton pump inhibitor medication response and/or an FSSG score > 8 points. Full-length lateral radiographs in a standing posture and in a supine, fulcrum backward-bending (FBB) position were taken preoperatively and 1 year postoperatively, and radiographic parameters were obtained. Correlations between radiographic parameters and FSSG scores were determined by Pearson's correlation coefficient. Multivariate logistic regression analyses were performed to evaluate the odds ratio (OR) with a 95% confidence interval (95% CI) for potential risk factors for GERD. RESULTS: Patients were classified into two groups based on GERD symptoms, with 37 (52%) in the GERD+ group. Thoracolumbar kyphosis (TLK) in the FBB position was significantly more common in the GERD+ versus the GERD- group. Multivariate logistic regression analysis showed that lumbar lordosis (LL) and TLK curve in the FBB position significantly influenced the presence of GERD. Other factors showed no association with GERD. Significant improvements in FSSG scores were noted 1 year postoperatively. However, 20 (28.2%) patients still had GERD symptoms. The postoperative TLK curve was highly significantly correlated with FSSG scores 1 year postsurgery. CONCLUSIONS: Of the 71 patients treated surgically for ASD, 37 (52%) had a high frequency of GERD symptoms. An inflexible thoracolumbar curve with increased TLK in the FBB position was significantly associated with GERD symptoms. Despite significant improvements in FSSG scores postoperatively, insufficient correction of TLK might be a risk factor for persistent GERD symptoms. PMID- 29320989 TI - Expression of Vimentin in hair follicle growth cycle of inner Mongolian Cashmere goats. AB - BACKGROUND: The growth of Inner Mongolian Cashmere goat skin hair follicle exhibits a periodic growth pattern. The hair growth cycle is distinguished as telogen, anagen, and catagen stages. The role of vimentin in the growth process of hair follicles is evident. To elucidate the mechanism underlying the vimentin activity in the growth cycle of hair follicles, transcriptome sequencing and liquid chromatography-tandem mass spectrometry were used to obtain the nucleic acid and amino acid sequences of VIIM gene and vimentin. The amino acid and nucleic acid sequences were analyzed by comparison. Real-time quantitative PCR, Western blot, and immunohistochemistry analyzed the expression level and sites of vimentin in the three growth stages of the Inner Mongolia Cashmere goat skin samples. RESULTS: VIM gene cDNA, obtained by transcriptome sequencing, was aligned against that of the Capra hircus VIM gene. The amino acid sequence of vimentin revealed a high similarity rate across other species. The expressions of both VIM gene and vimentin were highest during the growth period and lowest in the rest period. Furthermore, vimentin was primarily expressed in the outer root sheath of the hair follicle as assessed by staining. CONCLUSIONS: The sequences of the gene and protein are similar to that of other species and identical to Capra hircus. However, the expression of VIM and vimentin was proportional to that of the growth of hair follicles. And vimentin expressed only in the outer root sheath of hair follicles. Thus, vimentin was speculated to participate in the regulation of the hair follicle growth cycle by affecting the outer root sheath. PMID- 29320990 TI - Correlation between polymorphisms in toll-like receptor genes and the activity of hepatitis B virus among treatment-naive patients: a case-control study in a Han Chinese population. AB - BACKGROUND: Because of the high prevalence and absence of cure for infection, chronic hepatitis B virus (HBV) infection has been acknowledged as a pressing public health issue. Toll-like receptors (TLRs) activate the human innate immune system and the polymorphisms in TLRs may alter their function. The present study aimed to investigate the association between TLR polymorphisms and disease progression of chronic HBV infection. METHODS: During the study period, 211 treatment-naive patients with chronic HBV infection were recruited, and blood samples were collected from each individual. Matrix-assisted laser desorption/ionization time of flight mass spectrometry was employed to genotype the selected TLR polymorphisms after human genome extraction. In addition, HbsAg, TNF-alpha, and IL-6 levels were quantified using enzyme linked immunosorbent assay (ELISA). Statistical analyses were conducted to investigate the association between TLR polymorphisms and hepatitis activity, liver function parameters, HbsAg level, and cytokine level. RESULTS: We did not observe any mutations in rs4986790, rs4986791, and rs5743708 among all study subjects. A logistic regression revealed that mutations in rs3804099 and rs4696480 were associated with milder hepatitis activity. Consistent with the logistic regression, improved liver function parameters and reduced level of both HbsAg and cytokines were also correlated with the mutant carriers of rs3804099 and rs4696480. CONCLUSIONS: TLR mutations were significantly associated with milder hepatitis activity among patients with chronic HBV infection. Therefore, we conclude that the activation of TLR pathways may further intensify the inflammation of hepatocytes, and leads to progression of disease. PMID- 29320991 TI - An oncogenic mutant of RHEB, RHEB Y35N, exhibits an altered interaction with BRAF resulting in cancer transformation. AB - BACKGROUND: RHEB is a unique member of the RAS superfamily of small GTPases expressed in all tissues and conserved from yeast to humans. Early studies on RHEB indicated a possible RHEB-RAF interaction, but this has not been fully explored. Recent work on cancer genome databases has revealed a reoccurring mutation in RHEB at the Tyr35 position, and a recent study points to the oncogenic potential of this mutant that involves activation of RAF/MEK/ERK signaling. These developments prompted us to reassess the significance of RHEB effect on RAF, and to compare mutant and wild type RHEB. METHODS: To study RHEB RAF interaction, and the effect of the Y35N mutation on this interaction, we used transfection, immunoprecipitation, and Western blotting techniques. We generated cell lines stably expressing RHEB WT, RHEB Y35N, and KRAS G12V, and monitored cellular transforming properties through cell proliferation, anchorage independent growth, cell cycle analysis, and foci formation assays. RESULTS: We observe a strong interaction between RHEB and BRAF, but not with CRAF. This interaction is dependent on an intact RHEB effector domain and RHEB-GTP loading status. RHEB overexpression decreases RAF activation of the RAF/MEK/ERK pathway and RHEB knockdown results in an increase in RAF/MEK/ERK activation. RHEB Y35N mutation has decreased interaction with BRAF, and RHEB Y35N cells exhibit greater BRAF/CRAF heterodimerization resulting in increased RAF/MEK/ERK signaling. This leads to cancer transformation of RHEB Y35N stably expressing cell lines, similar to KRAS G12 V expressing cell lines. CONCLUSIONS: RHEB interaction with BRAF is crucial for inhibiting RAF/MEK/ERK signaling. The RHEB Y35N mutant sustains RAF/MEK/ERK signaling due to a decreased interaction with BRAF, leading to increased BRAF/CRAF heterodimerization. RHEB Y35N expressing cells undergo cancer transformation due to decreased interaction between RHEB and BRAF resulting in overactive RAF/MEK/ERK signaling. Taken together with the previously established function of RHEB to activate mTORC1 signaling, it appears that RHEB performs a dual function; one is to suppress the RAF/MEK/ERK signaling and the other is to activate mTORC1 signaling. PMID- 29320992 TI - Caesarean delivery-related blood transfusion: correlates in a tertiary hospital in Southwest Nigeria. AB - BACKGROUND: Caesarean delivery carries a risk of major intra-operative blood loss and its performance is often delayed by non-availability of blood and blood products. Unnecessary cross-matching and reservation of blood lead to apparent scarcity in centres with limited supply. This study set out to identify the risk factors for blood transfusion in women who underwent caesarean delivery at a tertiary obstetric unit with a view to ensuring efficient blood utilization. METHODS: A prospective cohort analysis of 906 women who had caesarean deliveries at the Lagos State University Teaching Hospital, Nigeria between January and December, 2011. A comparison was made between 188 women who underwent blood transfusion and 718 who did not. Data were obtained on a daily basis by investigators from patients, clinical notes and referral letters using structured pre-tested data collecting form. Socio-demographic characteristics; antenatal, perioperative and intraoperative details; blood loss; transfusion; and puerperal observations were recorded. EPI-Info statistical software version 3.5.3 was used for multivariable analysis to determine independent risk factors for blood transfusion. RESULTS: Of the 2134 deliveries during the study period, 906 (42.5%) had caesarean deliveries and of which 188 (20.8%) were transfused. The modal unit of blood transfused was 3 pints (41.3%). The most common indication for caesarean section was cephalo-pelvic disproportion (25.7%).The independent risk factors for blood transfusion at caesarean section were second stage Caesarean Section (aOR = 76.14, 95% CI = 1.25-4622.06, p = 0.04), placenta previa (aOR = 32.57, 95% CI = 2.22-476.26, p = 0.01), placental abruption (aOR = 25.35, 95% CI = 3.06-211.02, p < 0.001), pre-operative anaemia (aOR = 12.15, 95% = CI 4.02-36.71, p < 0.001), prolonged operation time (aOR = 10.72 95% CI = 1.37-36.02, p < 0.001), co morbidities like previous uterine scar (aOR = 7.02, 95% CI = 1.37-36.02, p = 0.02) and hypertensive disorders in pregnancy (aOR = 5.19, 95% CI = 1.84-14.68, p < 0.001). Obesity reduced the risk for blood transfusion (aOR = 0.24, 95% CI = 0.09-0.61, p = 0.0024). CONCLUSION: The overall risk of blood transfusion in cesarean delivery is high. Paturients with the second stage Caesarean section, placenta previa, abruptio placentae and preoperative maternal anaemia have an increased risk of blood transfusion. Hence, adequate peri-operative preparations for blood transfusion are essential in these situations. Optimizing maternal hemoglobin concentration during antenatal period may reduce the incidence of caesarean-associated blood transfusion. PMID- 29320993 TI - Distribution of glomerular diseases in Taiwan: preliminary report of National Renal Biopsy Registry-publication on behalf of Taiwan Society of Nephrology. AB - BACKGROUND: Despite the development of biomarkers and noninvasive imaging tools, biopsy remains the only method for correctly diagnosing patients with unexplained hematuria, proteinuria and renal failure. Renal biopsy has been performed for several decades in Taiwan; however, a national data registry is still lacking until 2013. METHODS: The Renal Biopsy Registry Committee was established within the Taiwan Society of Nephrology in January 2013. A biopsy registry format, including basic demographic data, baseline clinical features, laboratory data, and clinical and pathological diagnosis was developed. Approval from the local institutional review board was obtained in each participating medical center. RESULTS: From January 2014 to September 2016, 1445 renal biopsies were identified from 17 medical centers. 53.8% cases were reported in men. After excluding renal transplantation, renal biopsies were commonly performed in patients with primary glomerulonephritis (48.1%), secondary glomerulonephritis (36.2%), followed by tubulointerstitial diseases (12.3%) and vascular nephropathy (3.4%). Among primary glomerulonephritis, IgA nephropathy (26.0%), focal segmental glomerulosclerosis (21.6%), and membranous nephropathy (20.6%) were most frequently diagnosed. Diabetic nephropathy (22.4%) and lupus nephritis (21.8%) were the most common among secondary glomerulonephritis. Patients with minimal change disease and membranous nephropathy had heavier proteinuria than those with focal segmental glomerulosclerosis and IgA nephropathy (P < 0.001). Patients with minimal change disease had higher serum IgM and IgE levels. The most common cause of nephrotic syndrome in primary glomerular disease was membranous nephropathy (28.8%), followed by minimal change disease (28.2%). IgA nephropathy was the leading cause of chronic nephritic syndrome, acute nephritic syndrome, and persistent hematuria. The incidence of primary glomerulonephritis was approximately 2.19 in 100,000/year. CONCLUSIONS: This is the first report of the National Renal Biopsy Registry in Taiwan. IgA nephropathy is the most common primary glomerulonephritis, while membranous nephropathy is the most common cause of nephrotic syndrome. Primary glomerulonephritis distribution in Taiwan is slightly different from that in other Asian countries. PMID- 29320994 TI - Promoting sustainability in quality improvement: an evaluation of a web-based continuing education program in blood pressure measurement. AB - BACKGROUND: The accuracy of blood pressure measurement is variable in office based settings. Even when staff training programs are effective, knowledge and skills decay over time, supporting the need for ongoing staff training. We evaluated whether a web-based continuing education program in blood pressure measurement reinforced knowledge and skills among clinical staff and promoted sustainability of an existing quality improvement program. METHODS: Medical assistants and nurses at six primary care clinics within a health system enrolled in a 30-min online educational program designed to refresh their knowledge of blood pressure measurement. A 20-question pre- and post-intervention survey addressed learners' knowledge and attitudes. Direct observation of blood pressure measurement technique before and after the intervention was performed. Differences in responses to pre- and post-module knowledge and attitudes questions and in observation data were analyzed using chi-square tests and simple logistic regression. RESULTS: All 88 clinical staff members participated in the program and completed the evaluation survey. Participants answered 80.6% of questions correctly before the module and 93.4% afterwards (p < 0.01). Scores improved significantly among staff from all job types. Licensed practical nurses and staff who had been in their current job at least a year were more likely to answer questions correctly than registered nurses and those in their current job less than a year. Attitudes toward correct blood pressure measurement were high at baseline and did not improve significantly. Prior to the intervention, staff adhered to 9 of 18 elements of the recommended technique during at least 90% of observations. Following the program, staff was more likely to explain the protocol, provide a rest period, measure an average blood pressure, and record the average blood pressure, but less likely to measure blood pressure with the arm at heart level and use the right arm. CONCLUSIONS: We designed, implemented, and evaluated a web-based educational program to improve knowledge, skills, and attitudes in blood pressure measurement and use of an automated device among nurses and medical assistants in ambulatory care. The program reinforced knowledge related to recommended blood pressure measurement technique. TRIAL REGISTRATION: Retrospectively registered with ClincalTrials.gov on March 22, 2012; registration number NCT01566864 . PMID- 29320995 TI - Metformin, Asian ethnicity and risk of prostate cancer in type 2 diabetes: a systematic review and meta-analysis. AB - BACKGROUND: Metformin is associated with a reduced risk of some cancers but its effect on prostate cancer is unclear. Some studies suggest only Asians derive this benefit. Therefore, we undertook a systematic review with particular attention to ethnicity. METHODS: Medline, Embase, Scopus, Web of Science, and EBM Reviews were searched from inception to 2015. Two reviewers identified and abstracted articles. Studies were pooled using random effects model and stratified by Western- vs Asian-based populations. RESULTS: We identified 482 studies; 26 underwent full review. Of Western-based studies (n = 23), two were randomized trials and 21 were observational studies. All Asian-based studies (n = 3) were observational. There were 1,572,307 patients, 1,171,643 Western vs 400,664 Asian. Across all studies there was no association between metformin and prostate cancer (RR: 1.01, 95%CI: 0.86-1.18, I2: 97%), with similar findings in Western-based trials (RR: 1.38, 95%CI: 0.72-2.64 I2: 15%) and observational studies (RR: 1.03 95%CI: 0.94-1.13, I2: 88%). Asian-based studies suggested a non significant reduction (RR: 0.75, 95%CI: 0.42-1.34, I2: 90%), although these results were highly influenced by one study of almost 400,000 patients (propensity-adjusted RR: 0.47 95%CI 0.45-0.49). Removing this influential study yielded an estimate more congruent with Western-based studies (RR: 0.98 95%CI:0.71-1.36, I2: 0%). CONCLUSION: There is likely no association between metformin and risk of prostate cancer, in either Western-based or Asian-based populations after removing a highly influential Asian-based study. PMID- 29320996 TI - Healthy apple program to support child care centers to alter nutrition and physical activity practices and improve child weight: a cluster randomized trial. AB - BACKGROUND: North Carolina Nutrition and Physical Activity Self-Assessment for Child Care (NAP SACC) resources improve child body mass index (BMI) when the resources are introduced by nurses to child care providers, and offered with workshops and incentives. In San Francisco, public health and child care agencies partnered to adapt NAP SACC resources into an annual "Healthy Apple" quality improvement program (HAP). METHODS: This cluster randomized controlled trial pilot-tested integration of the HAP with bi-annual public health screenings by nurses. All child care centers that participated in Child Care Health Program (CCHP) screenings in San Francisco in 2011-2012 were offered routine services plus HAP in 2012-2013 (CCHP + HAP, n = 19) or routine services with delayed HAP in 2014-2015 (CCHP + HAP Delayed, n = 24). Intention-to-treat analyses (robust SE or mixed models) used 4 years of screening data from 12 to 17 CCHP + HAP and 17 to 20 CCHP + HAP Delayed centers, regarding 791 to 945 children ages 2 to 5y, annually. Year-specific, child level models tested if children in CCHP + HAP centers had greater relative odds of exposure to 3 index best practices and smaller Autumn-to-Spring changes in BMI percentile and z-score than children in CCHP + HAP Delayed centers, controlling for age, sex, and Autumn status. Multi year, child care center level models tested if HAP support modified year-to-year changes (2013-2014 and 2014-2015 vs 2011-2012) in child care center annual mean Autumn-to-Spring BMI changes. RESULTS: In 2011-2012, the CCHP + HAP and CCHP + HAP Delayed centers had similar index practices (<15% of children were exposed to a physical activity curriculum, staff joining in active play, and drinking water pitchers) and annual BMI changes. In 2013-2014: 60% of children in CCHP + HAP centers were exposed to the 3 index practices vs 19% in CCHP + HAP Delayed centers; Mean (SE) child BMI percentile (-2.6 (0.9), p = 0.003) and z-score ( 0.08 (0.03), p = 0.007) decreased more in CCHP + HAP vs CCHP + HAP Delayed centers. In 2014-2015, after all centers were offered HAP, the index practices and BMI changes were improved for all centers vs 2011-2012. CONCLUSIONS: Integration of the HAP with existing public health nursing services was associated with significantly more children exposed to best practices and improvement in child BMI change. The results warrant continued integration of HAP into local public health infrastructure. TRIAL REGISTRATION: ISRCTN18857356 (24/04/2015) Retrospectively registered. PMID- 29320997 TI - Investigating the associations between productive housework activities, sleep hours and self-reported health among elderly men and women in western industrialised countries. AB - BACKGROUND: After retirement, elderly men and women allocate more time to housework activities, compared to working-age adults. Nonetheless, sleep constitutes the lengthiest time use activity among the elderly, but there has not been any study on the associations between time spent on housework activities, sleep duration and self-reported health among the older population. This study not only examined individual associations between self-reported health and both housework activities and sleep duration, but it also explored self-reported health by the interaction effect between housework activities and sleep duration separately for men and women. METHODS: Pooled data from the Multinational Time Use Study (MTUS) on 15,333 men and 20,907 women from Germany, Italy, Spain, UK, France, the Netherlands and the US were analysed. Multiple binary logistic regression models were used to examine the associations between three broad categories of housework activities ((1) cooking, cleaning and shopping, (2) gardening and maintenance; (3) childcare) and health. We further investigated the extent to which total housework hours and sleep duration were associated with self-reported health for men and women separately. RESULTS: We found a positive association between time devoted to housework activities, total housework and health status among elderly men and women. Compared to those who spent 1 to 3 h on total productive housework, elderly people who spent >3 to 6 h/day had higher odds of reporting good health (OR = 1.25; 95% CI = 1.14-1.37 among men and OR = 1.10; 95% CI = 1.01-1.20 among women). Both short (<7 h) and long (>8 h) sleep duration were negatively associated with health for both genders. However, the interactive associations between total productive housework, sleep duration, and self-reported health varied among men and women. Among women, long hours of housework combined with either short or long sleep was negatively associated with health. CONCLUSIONS: Although time allocation to housework activities may be beneficial to the health among both genders, elderly women have higher odds of reporting poor health when more time is devoted total housework combined with either short or long sleep duration. PMID- 29320998 TI - The perceptions and experiences of women who achieved and did not achieve a waterbirth. AB - BACKGROUND: There is a gap in knowledge and understanding relating to the experiences of women exposed to the opportunity of waterbirth. Our aim was to explore the perceptions and experiences of women who achieved or did not achieve their planned waterbirth. METHODS: An exploratory design using critical incident techniques was conducted between December 2015 and July 2016, in the birth centre of the tertiary public maternity hospital in Western Australia. Women were telephoned 6 weeks post birth. Demographic data included: age; education; parity; and previous birth mode. Women were also asked the following: what made you choose to plan a waterbirth?; what do you think contributed to you having (or not having) a waterbirth?; and which three words would you use to describe your birth experience? Frequency distributions and univariate comparisons were employed for quantitative data. Thematic analysis was undertaken to extract common themes from the interviews. RESULTS: A total of 31% (93 of 296) of women achieved a waterbirth and 69% (203 of 296) did not. Multiparous women were more likely to achieve a waterbirth (57% vs 32%; p < 0.001). Women who achieved a waterbirth were less likely to have planned a waterbirth for pain relief (38% vs 52%; p = 0.24). The primary reasons women gave for planning a waterbirth were: pain relief; they liked the idea; it was associated with a natural birth; it provided a relaxing environment; and it was recommended. Two fifths (40%) of women who achieved a waterbirth suggested support was the primary reason they achieved their waterbirth, with the midwife named as the primary support person by 34 of 37 women. Most (66%) women who did not achieve a waterbirth perceived this was because they experienced an obstetric complication. The words women used to describe their birth were coded as: affirming; distressing; enduring; natural; quick; empowering; and long. CONCLUSIONS: Immersion in water for birth facilitates a shift of focus from high risk obstetric-led care to low risk midwifery-led care. It also facilitates evidence based, respectful midwifery care which in turn optimises the potential for women to view their birthing experience through a positive lens. PMID- 29321000 TI - Care quality following intrauterine death in Spanish hospitals: results from an online survey. AB - BACKGROUND: The objective of the study was to evaluate practices in Spanish hospitals after intrauterine death in terms of medical/ technical care and bereavement support care. METHODS: A cross-sectional descriptive study using an online self-completion questionnaire. The population was defined as women who had experienced an intrauterine fetal death between sixteen weeks and birth, either through spontaneous late miscarriage/stillbirth or termination of pregnancy for medical reasons. Respondents were recruited through an online advertisement on a stillbirth charity website and social media. The analysis used Pearson's chi squared (p <= 0.05) test of independence to cross-analyse for associations between objective measures of care quality and independent variables. RESULTS: Responses from 796 women were analysed. Half of the women (52.9%) had postmortem contact with their baby. 30.4% left the hospital with a least one linking object or a photograph. In 35.8% of cases parents weren't given any option to recover the body/remains. 22.9% of births >=26 weeks gestation were by caesarean, with a significant (p < 0.001) difference between public hospitals (16.8%) and private hospitals (41.5%). 29.3% of respondents were not accompanied during the delivery. 48.0% of respondents recalled being administered sedatives at least once during the hospital stay. The autopsy rate in stillbirth cases (>= 20 weeks) was 70.5% and 44.4% in cases of termination of pregnancy (all gestational ages). Consistent significant (p < 0.05) differences in care practices were found based on gestational age and type of hospital (public or private), but not to other variables related to socio-demographics, pregnancy history or details of the loss/death. Intrauterine deaths at earlier gestational ages received poorer quality care. CONCLUSIONS: Supportive healthcare following intrauterine death is important to women's experiences in the hospital and beneficial to the grief process. Many care practices that are standard in other high-income countries are not routine in Spanish hospitals. Providing such care is a relatively new phenomenon in the Spanish health system, the results provide a quality benchmark and identify a number of areas where hospitals could make improvements to care practices that should have important psychosocial benefits for women and their families. PMID- 29320999 TI - Gender differences in mental health problems among adolescents and the role of social support: results from the Belgian health interview surveys 2008 and 2013. AB - BACKGROUND: To investigate how social support relates to mental health problems for Belgian late adolescents and young adults 15-25 years of age. Additionally, we examine changes in mental health problems between 2008 and 2013 and investigate gender differences. METHODS: Multivariate analysis of variance was used to investigate (1) psychological distress, (2) anxiety and (3) depression among 713 boys and 720 girls taken from two successive waves (2008 and 2013) of a representative sample of the Belgian population (Belgian Health Interview survey). Psychological distress was measured by the General Health Questionnaire, anxiety and depression by the Symptom Check-List-90-Revised. RESULTS: Gender differences were found for psychological distress, anxiety and depression with girls reporting significantly higher scores than boys. Multivariate analysis of variance (MANOVA) revealed that adolescents who are dissatisfied with their social contacts and experience poor social support reported more psychological distress, anxiety and depression. In addition, young adult boys (20-25 years of age) were more likely to experience psychological distress when compared to late adolescent boys (15-19 years of age). Finally, the prevalence of anxiety and depression increased substantially between 2008 and 2013 for girls and to a lesser extent for boys. CONCLUSIONS: Especially girls and young people with poor social support experience mental health problems more frequently than boys and those with strong social support. Improving social support among young people may serve as a protective buffer to mental health problems. PMID- 29321001 TI - Dengue virus infection-enhancement activity in neutralizing antibodies of healthy adults before dengue season as determined by using FcgammaR-expressing cells. AB - BACKGROUND: Antibodies are critical responses to protect the host from dengue virus(DENV) infection. Antibodies target DENV by two pathologic mechanisms: virus neutralization and infection enhancement. In dengue patients, the absence of neutralizing activity in the presence of FcgammaR implies that infection enhancing activity hampers the neutralizing activity of antibodies, which could potentially lead to symptomatic presentations and severe clinical outcomes. METHODS: A total of 100 pair serum samples from adult healthy volunteers were obtained during the dengue season in Ha Noi in 2015 for evaluation of neutralizing and infection-enhancing activity. Additionally, 20 serum samples from acute secondary DENV infection patients were also used as the patient group in this study. PRNT was performed on BHK cells and FcgammaR-expressing BHK cell lines for all serum samples. RESULTS: Out of 100 residents, positive neutralizing antibodies (N.A) were found in 44.23 and 76.92% for DENV-1; 38.46 and 75% for DENV-2; 19.23 and 15.38% for DENV-3; and 1.92 and 9.62% for DENV-4 for pre and post-dengue season respectively. The percentage of post-exposure residents having positive responses against single, two, or more than three DENV serotypes were 38.46, 44.23 and 15.38%, respectively. A total of 34 residents were DENV seropositive before the dengue season and these individuals demonstrated further elevation of IgG antibodies after the dengue season. At the end of the season, 18 residents were confirmed to be new asymptomatic DENV infection cases. In both groups, N.A titers determined on BHK cells were higher than that on FcgammaR expressing BHK cells. In heterotypic N.A responses, N.A titers to the infecting serotype from the samples obtained from pre-exposure group were significantly higher than those of the patient group. However, fold enhancement to the infecting serotypes from the samples in the pre-exposure group was substantially lower as compared to that of the patient group. CONCLUSION: Before and after the dengue season, serum samples from healthy volunteers demonstrated high levels of neutralizing antibodies and low or absence of infection-enhancement activity. The results suggest that while infection-enhancement activity hampers neutralizing activity of antibodies, high levels of DENV neutralizing antibodies set a critical threshold in facilitating the prevention of disease progression. PMID- 29321002 TI - Comparison of nuisance parameters in pediatric versus adult randomized trials: a meta-epidemiologic empirical evaluation. AB - BACKGROUND: We wished to compare the nuisance parameters of pediatric vs. adult randomized-trials (RCTs) and determine if the latter can be used in sample size computations of the former. METHODS: In this meta-epidemiologic empirical evaluation we examined meta-analyses from the Cochrane Database of Systematic Reviews, with at least one pediatric-RCT and at least one adult-RCT. Within each meta-analysis of binary efficacy-outcomes, we calculated the pooled-control-group event-rate (CER) across separately all pediatric and adult-trials, using random effect models and subsequently calculated the control-group event-rate risk-ratio (CER-RR) of the pooled-pediatric-CERs vs. adult-CERs. Within each meta-analysis with continuous outcomes we calculated the pooled-control-group effect standard deviation (CE-SD) across separately all pediatric and adult-trials and subsequently calculated the CE-SD-ratio of the pooled-pediatric-CE-SDs vs. adult CE-SDs. We then calculated across all meta-analyses the pooled-CER-RRs and pooled CE-SD-ratios (primary endpoints) and the pooled-magnitude of effect-sizes of CER RRs and CE-SD-ratios using REMs. A ratio < 1 indicates that pediatric trials have smaller nuisance parameters than adult trials. RESULTS: We analyzed 208 meta analyses (135 for binary-outcomes, 73 for continuous-outcomes). For binary outcomes, pediatric-RCTs had on average 10% smaller CERs than adult-RCTs (summary CE-RR: 0.90; 95% CI: 0.83, 0.98). For mortality outcomes the summary-CE-RR was 0.48 (95% CIs: 0.31, 0.74). For continuous outcomes, pediatric-RCTs had on average 26% smaller CE-SDs than adult-RCTs (summary-CE-SD-ratio: 0.74). CONCLUSIONS: Clinically relevant differences in nuisance parameters between pediatric and adult trials were detected. These differences have implications for design of future studies. Extrapolation of nuisance parameters for sample-sizes calculations from adult-trials to pediatric-trials should be cautiously done. PMID- 29321004 TI - RCC2 over-expression in tumor cells alters apoptosis and drug sensitivity by regulating Rac1 activation. AB - BACKGROUND: Small GTP binding protein Rac1 is a component of NADPH oxidases and is essential for superoxide-induced cell death. Rac1 is activated by guanine nucleotide exchange factors (GEFs), and this activation can be blocked by regulator of chromosome condensation 2 (RCC2), which binds the switch regions of Rac1 to prevent access from GEFs. METHODS: Three cancer cell lines with up- or down-regulation of RCC2 were used to evaluate cell proliferation, apoptosis, Rac1 signaling and sensitivity to a group of nine chemotherapeutic drugs. RCC2 expression in lung cancer and ovarian cancer were studied using immunochemistry stain of tumor tissue arrays. RESULTS: Forced RCC2 expression in tumor cells blocked spontaneous- or Staurosporine (STS)-induced apoptosis. In contrast, RCC2 knock down in these cells resulted in increased apoptosis to STS treatment. The protective activity of RCC2 on apoptosis was revoked by a constitutively activated Rac1, confirming a role of RCC2 in apoptosis by regulating Rac1. In an immunohistochemistry evaluation of tissue microarray, RCC2 was over-expressed in 88.3% of primary lung cancer and 65.2% of ovarian cancer as compared to non neoplastic lung and ovarian tissues, respectively. Because chemotherapeutic drugs can kill tumor cells by activating Rac1/JNK pathway, we suspect that tumors with RCC2 overexpression would be more resistant to these drugs. Tumor cells with forced RCC2 expression indeed had significant difference in drug sensitivity compared to parental cells using a panel of common chemotherapeutic drugs. CONCLUSIONS: RCC2 regulates apoptosis by blocking Rac1 signaling. RCC2 expression in tumor can be a useful marker for predicting chemotherapeutic response. PMID- 29321003 TI - A prototypical non-malignant epithelial model to study genome dynamics and concurrently monitor micro-RNAs and proteins in situ during oncogene-induced senescence. AB - BACKGROUND: Senescence is a fundamental biological process implicated in various pathologies, including cancer. Regarding carcinogenesis, senescence signifies, at least in its initial phases, an anti-tumor response that needs to be circumvented for cancer to progress. Micro-RNAs, a subclass of regulatory, non-coding RNAs, participate in senescence regulation. At the subcellular level micro-RNAs, similar to proteins, have been shown to traffic between organelles influencing cellular behavior. The differential function of micro-RNAs relative to their subcellular localization and their role in senescence biology raises concurrent in situ analysis of coding and non-coding gene products in senescent cells as a necessity. However, technical challenges have rendered in situ co-detection unfeasible until now. METHODS: In the present report we describe a methodology that bypasses these technical limitations achieving for the first time simultaneous detection of both a micro-RNA and a protein in the biological context of cellular senescence, utilizing the new commercially available SenTraGorTM compound. The method was applied in a prototypical human non malignant epithelial model of oncogene-induced senescence that we generated for the purposes of the study. For the characterization of this novel system, we applied a wide range of cellular and molecular techniques, as well as high throughput analysis of the transcriptome and micro-RNAs. RESULTS: This experimental setting has three advantages that are presented and discussed: i) it covers a "gap" in the molecular carcinogenesis field, as almost all corresponding in vitro models are fibroblast-based, even though the majority of neoplasms have epithelial origin, ii) it recapitulates the precancerous and cancerous phases of epithelial tumorigenesis within a short time frame under the light of natural selection and iii) it uses as an oncogenic signal, the replication licensing factor CDC6, implicated in both DNA replication and transcription when over expressed, a characteristic that can be exploited to monitor RNA dynamics. CONCLUSIONS: Consequently, we demonstrate that our model is optimal for studying the molecular basis of epithelial carcinogenesis shedding light on the tumor initiating events. The latter may reveal novel molecular targets with clinical benefit. Besides, since this method can be incorporated in a wide range of low, medium or high-throughput image-based approaches, we expect it to be broadly applicable. PMID- 29321006 TI - The quality of working life questionnaire for cancer survivors (QWLQ-CS): factorial structure, internal consistency, construct validity and reproducibility. AB - BACKGROUND: To assess the factorial structure, internal consistency, construct validity and reproducibility of the Quality of Working Life Questionnaire for Cancer Survivors (QWLQ-CS). METHODS: An Exploratory Factor Analysis (EFA) was performed on QWLQ-CS data from a sample of employed cancer survivors to establish the final number of items and factorial structure of the QWLQ-CS. Internal consistency was assessed using Cronbach's alpha. In a second sample of (self )employed cancer survivors, construct validity was tested by convergent validity (correlations of QWLQ-CS with construct-related questionnaires), and discriminative validity (difference in QWLQ-CS scores between cancer survivors and employed people without cancer). In a subgroup of stable cancer survivors subtracted from the second sample, reproducibility was evaluated by Intraclass Correlation Coefficient (ICC) and Standard Error of Measurement (SEM). RESULTS: EFA on QWLQ-CS data of 302 cancer survivors resulted in 23 items and five factors. The internal consistency of the QWLQ-CS was Cronbach's alpha = 0.91. Convergent validity on data of 130 cancer survivors resulted in r = 0.61-0.70. QWLQ-CS scores of these cancer survivors statistically differed (p = 0.04) from employed people without cancer (N = 45). Reproducibility of QWLQ-CS data from 87 cancer survivors demonstrated an ICC of 0.84 and a SEM of 9.59. CONCLUSIONS: The five-factor QWLQ-CS with 23 items and adequate internal consistency, construct validity, and reproducibility at group level can be used in clinical and occupational healthcare, and research settings. PMID- 29321005 TI - The impact of regular school closure on seasonal influenza epidemics: a data driven spatial transmission model for Belgium. AB - BACKGROUND: School closure is often considered as an option to mitigate influenza epidemics because of its potential to reduce transmission in children and then in the community. The policy is still however highly debated because of controversial evidence. Moreover, the specific mechanisms leading to mitigation are not clearly identified. METHODS: We introduced a stochastic spatial age specific metapopulation model to assess the role of holiday-associated behavioral changes and how they affect seasonal influenza dynamics. The model is applied to Belgium, parameterized with country-specific data on social mixing and travel, and calibrated to the 2008/2009 influenza season. It includes behavioral changes occurring during weekend vs. weekday, and holiday vs. school-term. Several experimental scenarios are explored to identify the relevant social and behavioral mechanisms. RESULTS: Stochastic numerical simulations show that holidays considerably delay the peak of the season and mitigate its impact. Changes in mixing patterns are responsible for the observed effects, whereas changes in travel behavior do not alter the epidemic. Weekends are important in slowing down the season by periodically dampening transmission. Christmas holidays have the largest impact on the epidemic, however later school breaks may help in reducing the epidemic size, stressing the importance of considering the full calendar. An extension of the Christmas holiday of 1 week may further mitigate the epidemic. CONCLUSION: Changes in the way individuals establish contacts during holidays are the key ingredient explaining the mitigating effect of regular school closure. Our findings highlight the need to quantify these changes in different demographic and epidemic contexts in order to provide accurate and reliable evaluations of closure effectiveness. They also suggest strategic policies in the distribution of holiday periods to minimize the epidemic impact. PMID- 29321007 TI - Staging laparoscopy for locally advanced gastric cancer in Chinese patients: a multicenter prospective registry study. AB - BACKGROUND: Staging laparoscopy(SL) is a recommended technique for the staging of Gastric Cancer(GC) and provides the indication for a radical surgery. Considering the medical practice in China, the standardized and regular usage of SL is yet to be spread. However, existing guidelines vary and make an ambiguity of indication for SL. Besides, the specific indication for Chinese patients remains a niche. This study aims to the essential, missing information of Chinese patients and tries to normalize the indication of LS in medical practice in China. METHODS: The study is a prospective, multicenter cohort study being conducted in China with a total of 450 patients, all diagnosed with locally advanced gastric cancer (cT2-4 N0-3 M0, no evidence of intra-abdominal dissemination) through Computed Tomography(CT) and/or Endoscopic Ultrasonography(EUS). Peritoneal lavage is regularly performed during the SL. Multivariate Cox regression model and receiver operator characteristic(ROC) analysis will be used to analyze the significant risk factors of intra-abdominal metastasis(including peritoneal dissemination and a positive cytological result). DISCUSSION: This confirmatory study will provide us with the specific positive rate of intraabdominal metastasis of GC in China, compared with empirical evidence of 20%. We expect this trial will contribute to our discovery of the specific risk factors of intra-abdominal metastasis of Chinese patients and to the stimulating and performing of minimally invasive surgical procedures. TRIAL REGISTRATION: ClinicalTrials.gov : registration number NCT02172690 . PMID- 29321008 TI - Effects of a culturally specific tobacco cessation intervention among African American Quitline enrollees: a randomized controlled trial. AB - BACKGROUND: African Americans suffer disproportionately from tobacco-related illness and have more difficulty quitting smoking than other racial/ethnic groups. Previous research indicates that African American treatment-seekers are high utilizers of tobacco quitlines, yet cessation rates via quitlines are lower relative to whites. The goal of the present study is to test the effectiveness of adding a culturally specific, video-based, adjunct to standard quitline care. It is hypothesized that the integration of an evidence-based intervention (Pathways to Freedom: Leading the Way to a Smoke-Free Community(c); PTF) into quitline services will increase cessation and treatment engagement compared to control conditions, and that effects will be moderated by sociocultural factors (e.g., culturally specific intervention expectancies, acculturation, and ethnic identity). METHODS: This study is a 3-arm semi-pragmatic randomized controlled trial (RCT). Participants will be 1050 enrollees in the North Carolina State quitline (QuitlineNC) who self-identify as African American. Usual quitline care includes up to 4 proactive quit coaching calls, website access, and two-weeks of nicotine patch therapy. Eligible study participants will be randomized to receive (1) standard quitline services plus PTF (PTF); (2) quitline services plus a standard tobacco cessation DVD (attention control); or (3) quitline services alone (usual care). Assessments will be conducted at baseline, 3 and 6-months post-enrollment. The primary outcome will be biochemically verified 7 day ppa at 6-months. Generalized linear mixed models (GLMMs) and hierarchical logistic regression will be used to assess the effects of treatment group on cessation outcomes and to test potential moderators. DISCUSSION: This study will answer questions regarding the implementation and effectiveness of integrating a culturally specific video intervention into a real-world, population-level tobacco intervention. It will also aid our understanding of individual-difference variables that are associated with success. If an incremental benefit is found, this trial will have implications for increasing the responsiveness of tobacco quitlines for African Americans, reducing tobacco cessation disparities, and best practices for improving minority health. In addition, the PTF intervention has the potential for widespread disseminated through quitlines, which are available across the United States. TRIAL REGISTRATION: Clinicaltrials.gov NCT03064971 . Registered on February 22, 2017. PMID- 29321011 TI - Attractive toxic sugar baits for controlling mosquitoes: a qualitative study in Bagamoyo, Tanzania. AB - BACKGROUND: Malaria elimination is unlikely to be achieved without the implementation of new vector control interventions capable of complementing insecticide-treated nets and indoor residual spraying. Attractive-toxic sugar baits (ATSBs) are considered a new vector control paradigm. They are technologically appropriate as they are simple and affordable to produce. ATSBs kill both female and male mosquitoes attracted to sugar feed on a sugary solution containing a mosquitocidal agent and may be used indoors or outdoors. This study explored the views and perceptions on ATSBs of community members from three Coastal Tanzanian communities. METHODS: Three communities were chosen to represent coastal urban, peri-urban and rural areas. Sensitization meetings were held with a total of sixty community members where ATSBs were presented and explained their mode of action. At the end of the meeting, one ATSB was given to each participant for a period of 2 weeks, after which they were invited to participate in focus group discussions (FGDs) to provide feedback on their experience. RESULTS: Over 50% of the participants preferred to use the bait indoors although they had been instructed to place it outdoors. Participants who used the ATSBs indoors reported fewer mosquitoes inside their homes, but were disappointed not to find the dead mosquitoes in the baits, although they had been informed that this was unlikely to happen. Most participants disliked the appearance of the bait and some thought it to be reminiscent of witchcraft. Neighbours that did not participate in the FGDs or sensitizations were sceptical of the baits. CONCLUSIONS: This study delivers insight on how communities in Coastal Tanzania are likely to perceive ATSBs and provides important information for future trials investigating the efficacy of ATSBs against malaria. This new vector control tool will require sensitization at community level regarding its mode of action in order to increase the acceptance and confidence in ATSBs for mosquito control given that most people are not familiar with the new paradigm. A few recommendations for product development and delivery are discussed. PMID- 29321010 TI - Evaluation of five CAD/CAM materials by microstructural characterization and mechanical tests: a comparative in vitro study. AB - BACKGROUND: Polymer infiltrated ceramics and nano-ceramic resins are the new restorative materials which have been developed in order to enhance the adverse properties of glass-matrix ceramics and resin composites. The aim of the present in vitro study was to evaluate the characteristics of various CAD/CAM materials through mechanical, microstructural, and SEM analysis. METHODS: Five test groups (n = 22) were formed by using the indicated CAD/CAM blocks: VITA Enamic (VITA Zahnfabrik), Lava Ultimate (3 M ESPE), IPS e.max CAD (Ivoclar Vivadent), IPS Empress CAD (Ivoclar Vivadent), and VITA Mark II (VITA Zahnfabrik). Two specimens from each test group were used for XRD and EDS analysis. Remaining samples were divided into two subgroups (n = 10). One subgroup specimens were thermocycled (5 degrees C to 55 degrees C, 30s, 10,000 cycles) whereas the other were not. All of the specimens were evaluated in terms of flexural strength, Vickers hardness, and fracture toughness. Results were statistically analyzed using two-way ANOVA, one-way ANOVA, Tukey's HSD, and Student's t tests (alpha = .05). Fractured specimens were evaluated using SEM. RESULTS: The highest Vickers microhardness value was found for VITA Mark II (p < .001), however flexural strength and fracture toughness results were lowest conversely (p < .05). IPS e.max CAD was found to have the highest flexural strength (p < .001). Fracture toughness of IPS e.max CAD was also higher than other tested block materials (p < .001). Lava Ultimate and VITA Enamic's mechanical properties were affected negatively from thermocycling (p < .05). Microhardness, flexural strength, and fracture toughness values of Lava Ultimate and VITA Enamic were found to be similar to VITA Mark II and IPS Empress CAD groups. CONCLUSIONS: It should be realised that simulated aging process seem to affect ceramic-polymer composite materials more significantly than glass ceramics. PMID- 29321009 TI - Dual action of highbush blueberry proanthocyanidins on Aggregatibacter actinomycetemcomitans and the host inflammatory response. AB - BACKGROUND: The highbush blueberry (Vaccinium corymbosum) has a beneficial effect on several aspects of human health. The present study investigated the effects of highbush blueberry proanthocyanidins (PACs) on the virulence properties of Aggregatibacter actinomycetemcomitans and macrophage-associated inflammatory responses. METHODS: PACs were isolated from frozen highbush blueberries using solid-phase chromatography. A microplate dilution assay was performed to determine the effect of highbush blueberry PACs on A. actinomycetemcomitans growth as well as biofilm formation stained with crystal violet. Tight junction integrity of oral keratinocytes was assessed by measuring the transepithelial electrical resistance (TER), while macrophage viability was determined with a colorimetric MTT assay. Pro-inflammatory cytokine and MMP secretion by A. actinomycetemcomitans-stimulated macrophages was quantified by ELISA. The U937 3xkappaB-LUC monocyte cell line transfected with a luciferase reporter gene was used to monitor NF-kappaB activation. RESULTS: Highbush blueberry PACs reduced the growth of A. actinomycetemcomitans and prevented biofilm formation at sub inhibitory concentrations. The treatment of pre-formed biofilms with the PACs resulted in a loss of bacterial viability. The antibacterial activity of the PACs appeared to involve damage to the bacterial cell membrane. The PACs protected the oral keratinocytes barrier integrity from damage caused by A. actinomycetemcomitans. The PACs also protected macrophages from the deleterious effect of leukotoxin Ltx-A and dose-dependently inhibited the secretion of pro inflammatory cytokines (IL-1beta, IL-6, CXCL8, TNF-alpha), matrix metalloproteinases (MMP-3, MMP-9), and sTREM-1 by A. actinomycetemcomitans treated macrophages. The PACs also inhibited the activation of the NF-kappaB signaling pathway. CONCLUSION: The antibacterial and anti-inflammatory properties of highbush blueberry PACs as well as their ability to protect the oral keratinocyte barrier and neutralize leukotoxin activity suggest that they may be promising candidates as novel therapeutic agents. PMID- 29321012 TI - Adaptation of child oral health education leaflets for Arabic migrants in Australia: a qualitative study. AB - BACKGROUND: The purpose of this study was to gain an in-depth understanding of Arabic-speaking mothers views on the usefulness of existing oral health education leaflets aimed at young children and also to record their views on the tailored versions of these leaflets. METHODS: This qualitative study was nested within a large ongoing birth cohort study in South Western Sydney, Australia. Arabic speaking mothers (n = 19) with young children were purposively selected and approached for a semi-structured interview. Two original English leaflets giving advice on young children's oral health were sent to mother's prior to the interview. On the day of interview, mothers were given simplified-English and Arabic versions of both the leaflets and were asked to compare the three versions. Interviews were audio-recorded, subsequently transcribed verbatim and analysed by thematic analysis. Ethical approval was obtained from Human Research Ethics Committees of the former Sydney South West Area Health Service, University of Sydney and Western Sydney University. RESULTS: Mothers reported that simplified English together with the Arabic version of the leaflets were useful sources of information. Although many mothers favoured the simplified version over original English leaflets, the majority favoured the leaflets in Arabic. Ideally, a "dual Arabic - simplified English leaflet" was preferred. The understanding of key health messages was optimised through a simple layout and visual images. CONCLUSIONS: There is a need to tailor oral health education leaflets for Arabic-speaking migrants. Producers of dental leaflets should also consider a "dual Arabic - simplified English leaflet" to improve oral health knowledge of Arabic-speaking migrants. The use of simple layout and pictures assists Arabic-speaking migrants to understand the content of dental leaflets. PMID- 29321013 TI - Hemoglobin level and lipoprotein particle size. AB - BACKGROUND: Alterations in lipoprotein size are associated with increased cardiovascular disease risk. Higher hemoglobin levels may indicate a higher risk of atherosclerosis and was previously associated with obesity, metabolic syndrome, and insulin resistance. No previous studies have investigated an association between hemoglobin concentration and lipoprotein particle size. METHODS: We conducted a population-based, cross-sectional study of 766 Caucasian, middle-aged subjects (341 men and 425 women) born in Pieksamaki, Finland, who were categorized into five age groups. The concentrations and sizes of lipoprotein subclass particles were analyzed by high-throughput nuclear magnetic resonance (NMR) spectroscopy. RESULTS: Larger very low density lipoprotein (VLDL) particle diameter was associated with higher hemoglobin concentrations in men (p = 0.003). There was a strong relationship between smaller high density lipoprotein (HDL) particle size and higher hemoglobin concentration in both men and women as well as with smaller low density lipoprotein (LDL) particle size and higher hemoglobin concentration in men and women (p < 0.001; p = 0.009, p = 0.008). VLDL particle concentration had a moderate positive correlation with hemoglobin concentration (r = 0.15; p < 0.001). LDL particle concentration showed a statistical trend suggesting increasing particle concentration with increasing hemoglobin levels (r = 0.08; p = 0.05). CONCLUSION: Higher hemoglobin levels are associated with larger VLDL, smaller LDL, and smaller HDL particle sizes and increasing amounts of larger VLDL and smaller LDL particles. This suggests that a higher hemoglobin concentration is associated with an unfavorable lipoprotein particle profile that is part of states that increase cardiovascular disease risk like diabetes and metabolic syndrome. PMID- 29321014 TI - Current status of nylon teeth myth in Tanzania: a cross sectional study. AB - BACKGROUND: Nylon teeth myth is a belief of associating infant illnesses with bulges on infants' alveolus that mark the positions of underlying developing teeth and that it is necessary to treat the condition mainly by traditional healers to prevent infant death. The traditional treatment often leads to serious complications that may lead to infant death. Although the government instituted educational campaigns against the myth in 1980s to 1990s, to date, repeated unpublished reports from different parts of the country indicate continued existence of the myth. Therefore, this study aimed to assess the current status of the nylon teeth myth in Tanzania. METHODS: The study population was obtained using the WHO Oral Health pathfinder methodology. A structured questionnaire inquired about socio-demographics as well as experiences with "nylon teeth" myth and its related practices. Odds ratios relating to knowledge and experience of the nylon teeth myth were estimated. RESULTS: A total of 1359 respondents aged 17 to 80 years participated in the study. 614 (45%) have heard of nylon teeth myth, of whom 46.1% believed that nylon teeth is a reality, and 42.7% reported existence of the myth at the time of study. Being residents in regions where nylon teeth myth was known before 1990 (OR = 8.39 (6.50-10.83), p < 0.001) and/or hospital worker (OR = 2.97 (1.99-4.42), p < 0.001) were associated with having have heard of nylon teeth myth. Proportionately more residents in regions where nylon teeth myth was not known before 1990 (p < 0.001), the educated (p < 0.001) and hospital workers (p < 0.001) believed modern medicine, whereas, proportionately more residents in regions where nylon teeth was known before 1990 (p < 0.001), less educated (p < 0.001) and non-hospital workers (p < 0.001) believed traditional medicine to be the best treatment for symptoms related to nylon teeth myth respectively. CONCLUSION: The "nylon teeth" myth still exists in Tanzania; a substantial proportion strongly believe in the myth and consider traditional medicine the best treatment of the myth related conditions. PMID- 29321015 TI - Differentials in health-related quality of life of employed and unemployed women with normal vaginal delivery. AB - BACKGROUND: The combination of child care and domestic work demands on both housewives and the employed (hired) women may impact their health-related quality of-life. There is paucity of studies to ascertain this. This study investigated the differences in health-related quality of life of employed and unemployed women with normal vaginal delivery and associated socio-demographic variables. METHODS: This longitudinal study was done from March, 2012 to June, 2013. Modified SF-36v2TM health-related quality of life questionnaire was administered to 234 newly delivered women drawn from six selected hospitals in Enugu, Southeast Nigeria at 6, 12 and 18 weeks postpartum. Respondents were reached for data collection through personal contacts initially at the hospitals of delivery, and subsequently by visits to their homes/workplaces or cell-phone calls. Women were asked to indicate how each of 36 items applied to them at each of the three times. Data collection lasted for six calendar months and 17 days (from September 3rd 2012 to 20th March, 2013). RESULTS: All the women had their best HrQoL at 12 weeks postpartum. Employed women reported lower health-related quality-of-life than the unemployed at the three time-points, the lowest mean score being at 18 weeks postpartum (Mean = 73.9). Multiple comparison of scores of the two groups using Tukey HSD Repeated Mean showed significant variation on the eight subscales of the health-related quality-of-life. Physical functioning (p = 0.045), Physical role limitation (p = 0.000), bodily pain (p = 0.000), social functioning (p = 0.000) and general health (p = 0.000) were unequal guaranteeing type 1 error. Women with higher education and personal income reported higher health-related quality-of-life (p < 0.05). Employed women have more problems with physical health components and are more negatively affected by increasing age except those with higher education and personal income. CONCLUSIONS: Increased responsibilities combined with increasing age and low socio-economic status reduce women's health-related quality-of-life post-partum. The traditionally accepted paid 3 months maternity leave should be elongated by extra months to help women balance their daily work with baby care. Gender sensitive employment opportunities in favour of women are necessary to empower more women economically. PMID- 29321016 TI - Long lasting insecticidal net use and its associated factors in Limmu Seka District, South West Ethiopia. AB - BACKGROUND: Many countries in sub-Saharan Africa, including Ethiopia, are focusing on the distribution of Long Lasting Insecticidal Nets (LLINs) to combat malaria. However, utilization of the LLIN is low when compared with LLIN possession because of various factors. This study was conducted to measure the actual LLIN usage and identify factors associated with its utilization in Limmu Seka District, South West Ethiopia. METHODS: A community based cross-sectional survey was conducted among 830 households from December 25, 2011 to February 29, 2012. RESULTS: A total of 830 households were selected by stratified systematic sampling and surveyed. Ninety percent of those surveyed owned LLINs and 68.3% reported that someone had slept under the net on the night prior to the survey. The factors associated with LLIN usage were knowledge of the mode of malaria transmission (AOR; 0.086, 95% CI 0.03, 0.24), the preferred conical shapes of the LLIN (AOR; 1.6, 95% CI 1.31, 4.1), receiving information about their use from Health Extension Workers (HEWs) (AOR; 2.4, 95% CI 1.5, 3.9), hearing media campaigns (AOR; 3.2 95% CI 3.5, 9.2), education at a health facility (AOR; 2 95% CI 1.5, 3.9) or having a family size of three or less (AOR; 2.1, 95% CI 1.3, 3.5). CONCLUSION: Although ownership of Long Lasting Insecticidal Nets was high at 90%, the actual usage of LLIN was low, and not all family members were protected. Promoting the usage of LLINs utilization by those at most risk, especially the conical shaped ones, through intensified health education using HEWs and mass media campaigns at all health facilities, schools and communities will improve LLIN utilization. PMID- 29321017 TI - Influence of the child's perceived general health on the primary caregiver's health status. AB - BACKGROUND: In estimating the impact of an intervention, ignoring the effect of improving the health of one member of the caregiver/child dyad on the Health Related Quality of Life (HRQoL) of the other member may lead to an underestimation of the utility gained. This may be particularly true for infants/young children and their caregivers. The aim of this study was to quantify the interaction between the child's perceived general health as assessed by the newly developed Toddler and Infant Questionnaire (TANDI) on the reporting of the caregiver's own HRQoL as assessed by the EQ-5D-3 L. METHODS: A sample of 187 caregivers participated. A total of 60 caregivers of acutely-ill (AI) and 60 caregivers of chronically-ill (CI) children were recruited from a children's hospital. The 67 caregivers of general population (GP) children were recruited at a pre-school. Each caregiver completed the proxy rating of their child's HRQoL on the TANDI (The TANDI is an experimental HRQoL instrument, modelled on the EQ-5D-Y proxy, for children aged 1-36 months), which comprises of six dimensions of health and a rating of general health on a Visual Analogue Scale (VAS). The caregiver completed the EQ-5D-3 L, a self-report measure of their own HRQoL. Forward stepwise regression models were developed with 1) the VAS score of the caregiver and 2) the VAS score of the child as dependent variables. The independent variables for the caregiver included dummy variables for the presence or absence of problems on the EQ-5D-3 L and the VAS score of the child. The independent variables for the child included dummy variables for each TANDI dimension and the VAS of the caregiver. RESULTS: The TANDI results indicated that in five of the six dimensions AI children had more problems than the other two groups and the GP children were reported to have a significantly higher VAS than the other two groups. The child's VAS was significantly correlated with the caregiver's VAS in all groups, but most strongly in the AI group. The preference based scores (using the UK TTO tariff) were only correlated in the AI group. The inclusion of the child's VAS increased the variance accounted for 11% of the VAS score of the caregiver. Anxiety and depression was the only dimension which accounted for more variance (18%). Similarly the perceived health state, VAS of the caregiver accounted for 14% of the variance in the child's VAS, second only to problems with play (25%). CONCLUSION: There does indeed appear to be a strong relationship between the VAS scores of the children and their caregivers. The perceived general health of the child influences the caregivers reporting of their general health, more than their own report of experiencing pain or discomfort or problems with mobility. Thus, improving the HRQoL of the very young child may improve the caregiver's HRQoL as well. Conversely, if the caregiver has a lower perceived HRQoL this may result in a decrement in the reported VAS of the child, independent of the presence or absence of problems in the different dimensions. This improvement is not currently captured by Cost Utility Analysis (CUA). It is recommended that future research investigates this effect with regards to CUA calculations. PMID- 29321018 TI - Management and attitudes about IPF (Idiopathic Pulmonary Fibrosis) among physicians from Latin America. AB - BACKGROUND: The aim of our study was to assess current practice patterns and attitudes towards diagnosis and management of idiopathic pulmonary fibrosis (IPF) patients in Latin America. METHODS: A Cross-sectional survey was developed and up to 455 physicians were enrolled. We used a rigorous method of validation using the translated version of the AIR Survey. RESULTS: Mean age was 47.5 years (SD 12.6) with 20.4 years (SD 12.3) of practice. In around 30% of physicians were reported access to radiologist, pathologist and multidisciplinary team. Despite almost all physicians reported that (ATS/ERS/JRS/ALAT) guidelines are useful, half of them prescribed corticoids for treatment of disease. Most respondents (69.9%) reported cough as the presenting symptom. Around 80% considered IPF to be an important clinical disorder, and felt that identifying patients at risk for IPF was important or extremely important. However, only 59.7% felt confident in managing patients with IPF, and similar numbers (60.8%) felt confident about their knowledge. Pulmonologist have more confidence and management of IPF that no pulmonologist. CONCLUSION: The results of this survey of Latin American physicians could help to fill gaps regarding awareness, management and treatment of IPF and improve earlier diagnosis of IPF. PMID- 29321019 TI - A qualitative study on coping behaviors and influencing factors among mothers in Japan raising children under three years old while experiencing physical and mental subjective symptoms. AB - BACKGROUND: No studies illustrating the coping behaviors of mothers experiencing physical and mental subjective symptoms, or the factors that contribute to these behaviors, have been investigated. Therefore, the present study sought to develop a conceptual framework on the coping behaviors and contributing factors of mothers experiencing physical and mental subjective symptoms. METHODS: This qualitative study involved theoretical sampling and semi-structured interviews of mothers who were raising children under 3 years of age in Japan and had experienced physical and mental subjective symptoms since giving birth. Women who were pregnant, required regular medical exams, or had difficulty communicating in Japanese were excluded. All mothers were recruited via personal contacts, snowball sampling, and posters at a community center and nursery schools. Analysis was conducted using the constant comparative method. The interview data were extracted in contextual units based on analytical themes, and concepts were generated. Relationships between concepts were investigated and categorized. To confirm theoretical saturation and ensure the validity of the data, a study supervisor was appointed, four qualitative researchers examined the results, and the interview respondents underwent member checking. RESULTS: There were a total of 21 participants. Thirteen categories were created from 29 concepts identified from the analytical theme "What do mothers do when raising children under 3 years of age while experiencing physical and mental subjective symptoms?" While experiencing subjective symptoms, mothers raising children under 3 years of age tended to lead a child-centric lifestyle and were hesitant to visit the doctor, not only because of typical reasons such as time and costs, but also because of factors related to their child. Some circumstances occurring while experiencing physical and mental subjective symptoms led mothers to put their own needs first and attempt to cope on their own as much as possible. As a result, most mothers would only visit a doctor after becoming seriously ill. CONCLUSION: Mothers raising children under 3 years of age in Japan tend to put their own needs on hold when experiencing subjective symptoms. As a result, they attempt to cope on their own and, at times, only visit a doctor after becoming seriously ill. PMID- 29321020 TI - Meta-analysis of human gene expression in response to Mycobacterium tuberculosis infection reveals potential therapeutic targets. AB - BACKGROUND: With the global emergence of multi-drug resistant strains of Mycobacterium tuberculosis, new strategies to treat tuberculosis are urgently needed such as therapeutics targeting potential human host factors. RESULTS: Here we performed a statistical meta-analysis of human gene expression in response to both latent and active pulmonary tuberculosis infections from nine published datasets. We found 1655 genes that were significantly differentially expressed during active tuberculosis infection. In contrast, no gene was significant for latent tuberculosis. Pathway enrichment analysis identified 90 significant canonical human pathways, including several pathways more commonly related to non infectious diseases such as the LRRK2 pathway in Parkinson's disease, and PD-1/PD L1 signaling pathway important for new immuno-oncology therapies. The analysis of human genome-wide association studies datasets revealed tuberculosis-associated genetic variants proximal to several genes in major histocompatibility complex for antigen presentation. We propose several new targets and drug-repurposing opportunities including intravenous immunoglobulin, ion-channel blockers and cancer immuno-therapeutics for development as combination therapeutics with anti mycobacterial agents. CONCLUSIONS: Our meta-analysis provides novel insights into host genes and pathways important for tuberculosis and brings forth potential drug repurposing opportunities for host-directed therapies. PMID- 29321021 TI - Silver-pig skin nanocomposites and mesenchymal stem cells: suitable antibiofilm cellular dressings for wound healing. AB - BACKGROUND: Treatment of severe or chronic skin wounds is an important challenge facing medicine and a significant health care burden. Proper wound healing is often affected by bacterial infection; where biofilm formation is one of the main risks and particularly problematic because it confers protection to microorganisms against antibiotics. One avenue to prevent bacterial colonization of wounds is the use of silver nanoparticles (AgNPs); which have proved to be effective against non-multidrug-resistant and multidrug-resistant bacteria. In addition, the use of mesenchymal stem cells (MSC) is an excellent option to improve wound healing due to their capability for differentiation and release of relevant growth factors. Finally, radiosterilized pig skin (RPS) is a biomatrix successfully used as wound dressing to avoid massive water loss, which represents an excellent carrier to deliver MSC into wound beds. Together, AgNPs, RPS and MSC represent a potential dressing to control massive water loss, prevent bacterial infection and enhance skin regeneration; three essential processes for appropriate wound healing with minimum scaring. RESULTS: We synthesized stable 10 nm-diameter spherical AgNPs that showed 21- and 16-fold increase in bacteria growth inhibition (in comparison to antibiotics) against clinical strains Staphylococcus aureus and Stenotrophomonas maltophilia, respectively. RPS samples were impregnated with different AgNPs suspensions to develop RPS-AgNPs nanocomposites with different AgNPs concentrations. Nanocomposites showed inhibition zones, in Kirby-Bauer assay, against both clinical bacteria tested. Nanocomposites also displayed antibiofilm properties against S. aureus and S. maltophilia from RPS samples impregnated with 250 and 1000 ppm AgNPs suspensions, respectively. MSC were isolated from adipose tissue and seeded on nanocomposites; cells survived on nanocomposites impregnated with up to 250 ppm AgNPs suspensions, showing 35% reduction in cell viability, in comparison to cells on RPS. Cells on nanocomposites proliferated with culture days, although the number of MSC on nanocomposites at 24 h of culture was lower than that on RPS. CONCLUSIONS: AgNPs with better bactericide activity than antibiotics were synthesized. RPS-AgNPs nanocomposites impregnated with 125 and 250 ppm AgNPs suspensions decreased bacterial growth, decreased biofilm formation and were permissive for survival and proliferation of MSC; constituting promising multi functional dressings for successful treatment of skin wounds. PMID- 29321023 TI - Which risk understandings can be derived from the current disharmonized regulation of complementary and alternative medicine in Europe? AB - BACKGROUND: Many European citizens are seeking complementary and alternative medicine (CAM). These treatments are regulated very differently in the EU/EFTA countries. This may demonstrate differences in how risk associated with the use of CAM is perceived. Since most CAM treatments are practiced fairly similarly across Europe, differing risk understandings may influence patient safety for European CAM users. The overall aim of this article is thus to contribute to an overview and awareness of possible differing risk understandings in the field of CAM at a policymaking/structural level in Europe. METHODS: The study is a re analysis of data collected in the CAMbrella EU FP7 document and interview study on the regulation of CAM in 39 European countries. The 12 CAM modalities included in the CAMbrella study were ranked with regard to assumed risk potential depending on the number of countries limiting its practice to regulated professions. The 39 countries were ranked according to how many of the included CAM modalities they limit to be practiced by regulated professions. RESULTS: Twelve of 39 countries generally understand the included CAM treatments to represent "high risk", 20 countries "low risk", while the remaining 7 countries understand CAM treatments as carrying "very little or no risk". The CAM modalities seen as carrying a risk high enough to warrant professional regulation in the highest number of countries are chiropractic, acupuncture, massage, homeopathy and osteopathy. The countries understanding most of the CAM modalities in the study as potentially high-risk treatments are with two exceptions (Portugal and Belgium) all concentrated in the southeastern region of Europe. CONCLUSION: The variation in regulation of CAM may represent a substantial lack of common risk understandings between health policymakers in Europe. We think the discrepancies in regulation are to a considerable degree also based on factors unrelated to patient risk. We argue that it is important for patient safety that policy makers across Europe address this confusing situation. This could be done by applying the WHO patient safety definitions and EU's policy to facilitate access to "safe and high-quality healthcare", and regulate CAM accordingly. PMID- 29321022 TI - Serum metabolic profiling identified a distinct metabolic signature in patients with idiopathic pulmonary fibrosis - a potential biomarker role for LysoPC. AB - BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a lethal lung disease of unknown etiology. Patients present loss of lung function, dyspnea and dry cough. Diagnosis requires compatible radiologic imaging and, in undetermined cases, invasive procedures such as bronchoscopy and surgical lung biopsy. The pathophysiological mechanisms of IPF are not completely understood. Lung injury with abnormal alveolar epithelial repair is thought to be a major cause for activation of profibrotic pathways in IPF. Metabolic signatures might indicate pathological pathways involved in disease development and progression. Reliable serum biomarker would help to improve both diagnostic approach and monitoring of drug effects. METHOD: The global metabolic profiles measured by ultra high performance liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS) of ten stable IPF patients were compared to the ones of ten healthy participants. The results were validated in an additional study of eleven IPF patients and ten healthy controls. RESULTS: We discovered 10 discriminative metabolic features using multivariate and univariate statistical analysis. Among them, we identified one metabolite at a retention time of 9.59 min that was two times more abundant in the serum of IPF patients compared to healthy participants. Based on its ion pattern, a lysophosphatidylcholine (LysoPC) was proposed. LysoPC is a precursor of lysophosphatidic acid (LPA) - a known mediator for lung fibrosis with its pathway currently being evaluated as new therapeutic drug target for IPF and other fibrotic diseases. CONCLUSIONS: We identified a LysoPC by UHPLC-HRMS as potential biomarker in serum of patients with IPF. Further validation studies in a larger cohort are necessary to determine its role in IPF. TRIAL REGISTRATION: Serum samples from IPF patients have been obtained within the clinical trial NCT02173145 at baseline and from the idiopathic interstitial pneumonia (IIP) cohort study. The study was approved by the Swiss Ethics Committee, Bern (KEK 002/14 and 246/15 or PB_2016-01524). PMID- 29321024 TI - Interprofessional education in graduate medical education: survey study of residency program directors. AB - BACKGROUND: The overarching purpose of this study is to examine the current trends in interprofessional education (IPE) within graduate medical education in the Unites States. METHODS: A survey was sent to program directors across with different specialties between March and April 2016. The survey was completed by 233 out of 1757 program directors, which represents a response rate of 13.3%. RESULTS: IPE is currently being used by over 60% of the GME program directors that completed the survey. The median number of IPE hours is 60. Classroom learning (70.8%) and team-based approaches (70.1%) to patient care are the two most common forms of IPE. The two most prevalent reasons for implementing IPE are improving collaboration (92.2%) and communication (87%). More than half of the program directors agreed or strongly agreed that lack of time both for teachers (54.4) and for residents (51.5%) are barriers to IPE. About one third of the respondents whose programs do not include IPE are interested in implementing some IPE in the future. CONCLUSION: IPE in its varying formats has been implemented as a training model by many residency programs. Further studies are needed to explore the comparative effectiveness of the different modalities of IPE. PMID- 29321025 TI - Diagnostic challenges of prolonged post-treatment clearance of Plasmodium nucleic acids in a pre-transplant autosplenectomized patient with sickle cell disease. AB - BACKGROUND: Autosplenectomy, as a result of sickle cell disease, is an important risk factor for severe malaria. While molecular methods are helpful in providing rapid and accurate infection detection and species identification, the effect of hyposplenism on result interpretation during the course of infection should be carefully considered. CASE PRESENTATION: A 32-year old autosplenectomized Nigerian male with severe sickle cell disease was referred to the National Institutes of Health for allogenic hematopoietic stem cell transplant. Despite testing negative for malaria by both smear and PCR 2 weeks after arrival in the USA, the patient developed fever and diffuse bilateral lower rib cage and upper abdominal pain 2 weeks later and subsequently tested positive for Plasmodium falciparum. Parasitaemia was tracked over time by microscopy and nucleic acid tests to evaluate the therapeutic response in the setting of hyposplenism. The patient showed prompt resolution of patent infection by microscopy but remained positive by molecular methods for > 30 days after treatment initiation. CONCLUSION: While molecular testing can provide sensitive Plasmodium nucleic acid detection, the persistence of Plasmodium nucleic acids following adequate treatment in functionally asplenic patients can lead to a diagnostic dilemma. In such patients, clinical response and peripheral blood smears should guide patient management following treatment. Nonetheless, in pre-transplant patients at high risk for pre-existing Plasmodium infections, highly sensitive molecular assays can be useful to rule out infection prior to transplantation. PMID- 29321027 TI - The role of transportation in the spread of Brachyspira hyodysenteriae in fattening farms. AB - BACKGROUND: Direct and indirect contact among animals and holdings are important in the spread of Brachyspira hyodysenteriae. The objective of this study was to investigate the role of slaughterhouse vehicles in spreading B. hyodysenteriae between unconnected farms. RESULTS: Multilocus sequence typing (MLST) and Multiple Locus Variable number tandem repeat Analysis (MLVA) were used to characterize B. hyodysenteriae strains isolated from trucks. Before cleaning, 976 batches of finishing pigs transported by 174 trucks from 540 herds were sampled. After cleaning, 763 of the 976 batches were also sampled. Sixty-one of 976 and 4 of 763 environmental swabs collected from trucks before and after cleaning and disinfection operations, respectively, were positive for B. hyodysenteriae. The 65 isolates in this study originated from 48 farms. Trucks were classified into five categories based on the number of visited farms as follows: category 1: 1-5 farms, category 2: 6-10 farms, category 3: 11-15 farms, category 4: 16-20 farms, category 5: >21 farms. Although the largest number of vehicles examined belonged to category 1, the highest percentage of vehicles positive for B. hyodysenteriae was observed in categories 3, 4 and 5. Specifically, 90.9% of trucks belonging to category 5 were positive for B. hyodysenteriae, followed by categories 4 and 3 with 85.7% and 83.3%, respectively. The results of MLST and MLVA suggest that trucks transporting pigs from a high number of farms also play a critical role in spreading different B. hyodysenteriae genetic profiles. STVT 83-3, which seems to be the current dominant type in Italy, was identified in 56.25% of genotyped isolates. The genetic diversity of isolated strains from trucks was high, particularly, in truck categories 3, 4 and 5. This result confirmed that MLST and MLVA can support the study of epidemiological links between different B. hyodysenteriae farm strains. CONCLUSIONS: This study highlights the potential role of shipments in B. hyodysenteriae spread. Moreover, it emphasizes the importance of strict vehicle hygiene practices for biosecurity programmes. PMID- 29321028 TI - Health condition and familial factors associated with health-related quality of life in adolescents with congenital heart disease: a cross sectional study. AB - BACKGROUND: The focus of clinical care after the repair of congenital heart disease has shifted from saving life of the patient to the patient's quality of life. The purpose of this study was to examine the health condition and familial factors associated with the health related quality of life of adolescents with congenital heart disease. METHODS: Ninety-eight adolescents aged 13-19 years were collected from a congenital heart clinic from July 22 to August 23, 2013. Perceptions of parental rearing behaviors, health related quality of life of adolescent with congenital heart disease, and general characteristics were measured. We used multiple linear regression analysis to explore factors that are associated with the health related quality of life of adolescents with congenital heart disease. RESULTS: New York heart association class (Adj R2 = .186, p = .000), presence of siblings (Adj R2 = .240, p = .010), and mother's emotional warmth (Adj R2 = .265, p = .043) were significantly associated with the health related quality of life of adolescents with congenital heart disease. CONCLUSIONS: Emotionally warm parental rearing behaviors and the presence of siblings were important familial factors that were positively associated with HRQOL in adolescents with CHD. Therefore, it is important for healthcare providers to develop a greater sensitivity to, and awareness of, the familial influences that may be impacting a subject's HRQOL, as well as the exigencies of the CHD, itself. PMID- 29321026 TI - Lay health worker experiences administering a multi-level combination intervention to improve PMTCT retention. AB - BACKGROUND: The recent scale-up of prevention of mother-to-child transmission of HIV (PMTCT) services has rapidly accelerated antiretroviral therapy (ART) uptake among pregnant and postpartum women in sub-Saharan Africa. The Mother and Infant Retention for Health (MIR4Health) study evaluates the impact of a combination intervention administered by trained lay health workers to decrease attrition among HIV-positive women initiating PMTCT services and their infants through 6 months postpartum. METHODS: This was a qualitative study nested within the MIR4Health trial. MIR4Health was conducted at 10 health facilities in Nyanza, Kenya from September 2013 to September 2015. The trial intervention addressed behavioral, social, and structural barriers to PMTCT retention and included: appointment reminders via text and phone calls, follow-up and tracking for missed clinic visits, PMTCT health education at home visits and during clinic visits, and retention and adherence support and counseling. All interventions were administered by lay health workers. We describe results of a nested small qualitative inquiry which conducted two focus groups to assess the experiences and perceptions of lay health workers administering the interventions. Discussions were recorded and simultaneously transcribed and translated into English. Data were analyzed using framework analysis approach. RESULTS: Study findings show lay health workers played a critical role supporting mothers in PMTCT services across a range of behavioral, social, and structural domains, including improved communication and contact, health education, peer support, and patient advocacy and assistance. Findings also identified barriers to the uptake and implementation of the interventions, such as concerns about privacy and stigma, and the limitations of the healthcare system including healthcare worker attitudes. Overall, study findings indicate that lay health workers found the interventions to be feasible, acceptable, and well received by clients. CONCLUSIONS: Lay health workers played a fundamental role in supporting mothers engaged in PMTCT services and provided valuable feedback on the implementation of PMTCT interventions. Future interventions must include strategies to ensure client privacy, decrease stigma within communities, and address the practical limitations of health systems. This study adds important insight to the growing body of research on lay health worker experiences in HIV and PMTCT care. TRIAL REGISTRATION: Clinicaltrials.gov NCT01962220 . PMID- 29321029 TI - Association of caries experience and dental plaque with sociodemographic characteristics in elementary school-aged children: a cross-sectional study. AB - BACKGROUND: Dental caries among Iranian elementary school children aged 6-12 years continue to rise. To estimate treatment needs and guide health initiatives, current epidemiologic data are required. Such data are currently unavailable for dental health. The purpose of this study was to assess caries experience, dental plaque, and associated factors in elementary school-aged children from Iran. METHODS: In this cross-sectional study, 988 elementary school children aged 7-12 years were selected by multistage cluster sampling. Dental caries was studied using the WHO criteria, dental plaque was examined according to O'Leary index. Data on parental education and occupation, living district, dental pain within the past year, and tooth brushing habits under parental supervision were collected through interviews based on questionnaire. The data were analyzed with descriptive statistics and logistic and linear regression. RESULTS: The mean (SD) age of the elementary school children was 9.64 (1.73) years. The highest dmft was seen in elementary school children aged 7-8 years 6.53 (4.37) and the highest DMFT and dental plaque was in 12 year olds recorded as 1.17 (1.77) and 51.97 (25.86), respectively. The proportion of decayed teeth in 7 years old elementary school based on dmft index was 80.36%, moreover, the proportion in 12 years old elementary school was 40.17% based on the DMFT index. Age, gender, and dental pain within the past year were significantly associated with DMFT and dmft. The odds of developing dental caries (DMFT) was 1.70 times higher in girls than in boys (p < 0.001) and 1.72 times higher in the students that reported dental pain frequently than in those who did not (p = 0.005). The chance of developing dental caries (dmft) was 0.47 times lower in girls than boys (p < 0.001). Age was significantly correlated with dental plaque such that Plaque Index increased by 2.44 times per one year increase in age (p < 0.001). CONCLUSION: Results indicated that dental caries experience and plaque formation among elementary school children in Hamadan were high and they were influenced by their sociodemographic factors. The associations found can be used as a helpful guide for planning accurate preventive programs for elementary school children in this region. PMID- 29321030 TI - CRABP1, C1QL1 and LCN2 are biomarkers of differentiated thyroid carcinoma, and predict extrathyroidal extension. AB - BACKGROUND: The prognostic variability of thyroid carcinomas has led to the search for accurate biomarkers at the molecular level. Follicular thyroid carcinoma (FTC) is a typical example of differentiated thyroid carcinomas (DTC) in which challenges are faced in the differential diagnosis. METHODS: We used high-throughput paired-end RNA sequencing technology to study four cases of FTC with different degree of capsular invasion: two minimally invasive (mFTC) and two widely invasive FTC (wFTC). We searched by genes differentially expressed between mFTC and wFTC, in an attempt to find biomarkers of thyroid cancer diagnosis and/or progression. Selected biomarkers were validated by real-time quantitative PCR in 137 frozen thyroid samples and in an independent dataset (TCGA), evaluating the diagnostic and the prognostic performance of the candidate biomarkers. RESULTS: We identified 17 genes significantly differentially expressed between mFTC and wFTC. C1QL1, LCN2, CRABP1 and CILP were differentially expressed in DTC in comparison with normal thyroid tissues. LCN2 and CRABP1 were also differentially expressed in DTC when compared with follicular thyroid adenoma. Additionally, overexpression of LCN2 and C1QL1 were found to be independent predictors of extrathyroidal extension in DTC. CONCLUSIONS: We conclude that the underexpression of CRABP1 and the overexpression of LCN2 may be useful diagnostic biomarkers in thyroid tumours with questionable malignity, and the overexpression of LCN2 and C1QL1 may be useful for prognostic purposes. PMID- 29321031 TI - Deprescribing preventive cardiovascular medication in patients with predicted low cardiovascular disease risk in general practice - the ECSTATIC study: a cluster randomised non-inferiority trial. AB - BACKGROUND: The use of cardiovascular medication for the primary prevention of cardiovascular disease (CVD) is potentially inappropriate when potential risks outweigh the potential benefits. It is unknown whether deprescribing preventive cardiovascular medication in patients without a strict indication for such medication is safe and cost-effective in general practice. METHODS: In this pragmatic cluster randomised controlled non-inferiority trial, we recruited 46 general practices in the Netherlands. Patients aged 40-70 years who were using antihypertensive and/or lipid-lowering drugs without CVD and with low risk of future CVD were followed for 2 years. The intervention was an attempt to deprescribe preventive cardiovascular medication. The primary outcome was the difference in the increase in predicted (10-year) CVD risk in the per-protocol (PP) population with a non-inferiority margin of 2.5 percentage points. An economic evaluation was performed in the intention-to-treat (ITT) population. We used multilevel (generalised) linear regression with multiple imputation of missing data. RESULTS: Of 1067 participants recruited between 7 November 2012 and 18 February 2014, 72% were female. Overall, their mean age was 55 years and their mean predicted CVD risk at baseline was 5%. Of 492 participants in the ITT intervention group, 319 (65%) quit the medication (PP intervention group); 135 (27%) of those participants were still not taking medication after 2 years. The predicted CVD risk increased by 2.0 percentage points in the PP intervention group compared to 1.9 percentage points in the usual care group. The difference of 0.1 (95% CI -0.3 to 0.6) fell within the non-inferiority margin. After 2 years, compared to the usual care group, for the PP intervention group, systolic blood pressure was 6 mmHg higher, diastolic blood pressure was 4 mmHg higher and total cholesterol and low-density lipoprotein-cholesterol levels were both 7 mg/dl higher (all P < 0.05). Cost and quality-adjusted life years did not differ between the groups. CONCLUSIONS: The results of the ECSTATIC study show that an attempt to deprescribe preventive cardiovascular medication in low-CVD-risk patients is safe in the short term when blood pressure and cholesterol levels are monitored after stopping. An attempt to deprescribe medication can be considered, taking patient preferences into consideration. TRIAL REGISTRATION: This study was registered with Dutch trial register on 20 June 2012 ( NTR3493 ). PMID- 29321032 TI - Exploring the small-scale spatial distribution of hypertension and its association to area deprivation based on health insurance claims in Northeastern Germany. AB - BACKGROUND: Hypertension is one of the most frequently diagnosed chronic conditions in Germany. Targeted prevention strategies and allocation of general practitioners where they are needed most are necessary to prevent severe complications arising from high blood pressure. However, data on chronic diseases in Germany are mostly available through survey data, which do not only underestimate the actual prevalence but are also only available on coarse spatial scales. The discussion of including area deprivation for planning of healthcare is still relatively young in Germany, although previous studies have shown that area deprivation is associated with adverse health outcomes, irrespective of individual characteristics. The aim of this study is therefore to analyze the spatial distribution of hypertension at very fine geographic scales and to assess location-specific associations between hypertension, socio-demographic population characteristics and area deprivation based on health insurance claims of the AOK Nordost. METHODS: To visualize the spatial distribution of hypertension prevalence at very fine geographic scales, we used the conditional autoregressive Besag-York-Mollie (BYM) model. Geographically weighted regression modelling (GWR) was applied to analyze the location-specific association of hypertension to area deprivation and further socio-demographic population characteristics. RESULTS: The sex- and age-adjusted prevalence of hypertension was 33.1% in 2012 and varied widely across northeastern Germany. The main risk factors for hypertension were proportions of insurants aged 45-64, 65 and older, area deprivation and proportion of persons commuting to work outside their residential municipality. The GWR model revealed important regional variations in the strength of the examined associations. CONCLUSION: Area deprivation has only a significant and therefore direct influence in large parts of Mecklenburg-West Pomerania. However, the spatially varying strength of the association between demographic variables and hypertension indicates that there also exists an indirect effect of area deprivation on the prevalence of hypertension. It can therefore be expected that persons ageing in deprived areas will be at greater risk of hypertension, irrespective of their individual characteristics. The future planning and allocation of primary healthcare in northeastern Germany would therefore greatly benefit from considering the effect of area deprivation. PMID- 29321033 TI - Environmental enrichment intervention for Rett syndrome: an individually randomised stepped wedge trial. AB - BACKGROUND: Rett syndrome is caused by a pathogenic mutation in the MECP2 gene with major consequences for motor and cognitive development. One of the effects of impaired MECP2 function is reduced production of Brain Derived Neurotrophic Factor (BDNF), a protein required for normal neuronal development. When housed in an enriched environment, MECP2 null mice improved motor abilities and increased levels of BDNF in the brain. We investigated the effects of environmental enrichment on gross motor skills and blood BDNF levels in girls with Rett syndrome. METHODS: A genetically variable group of 12 girls with a MECP2 mutation and younger than 6 years participated in a modified individually randomised stepped wedge design study. Assessments were conducted on five occasions, two during the baseline period and three during the intervention period. Gross motor function was assessed using the Rett Syndrome Gross Motor Scale (maximum score of 45) on five occasions, two during the baseline period and three during the intervention period. Blood levels of BDNF were measured at the two baseline assessments and at the end of the intervention period. The intervention comprised motor learning and exercise supplemented with social, cognitive and other sensory experiences over a six-month period. RESULTS: At the first assessment, the mean (SD) age of the children was 3 years (1 year 1 month) years ranging from 1 year 6 months to 5 years 2 months. Also at baseline, mean (SD) gross motor scores and blood BDNF levels were 22.7/45 (9.6) and 165.0 (28.8) ng/ml respectively. Adjusting for covariates, the enriched environment was associated with improved gross motor skills (coefficient 8.2, 95%CI 5.1, 11.2) and a 321.4 ng/ml (95%CI 272.0, 370.8) increase in blood BDNF levels after 6 months of treatment. Growth, sleep quality and mood were unaffected. CONCLUSIONS: Behavioural interventions such as environmental enrichment can reduce the functional deficit in Rett syndrome, contributing to the evidence-base for management and further understanding of epigenetic mechanisms. Environmental enrichment will be an important adjunct in the evaluation of new drug therapies that use BDNF pathways because of implications for the strengthening of synapses and improved functioning. TRIAL REGISTRATION: ACTRN12615001286538 . PMID- 29321034 TI - Diagnostic and prognostic utility of cardiovascular magnetic resonance imaging in heart failure with preserved ejection fraction - implications for clinical trials. AB - BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is a poorly characterized condition. We aimed to phenotype patients with HFpEF using multiparametric stress cardiovascular magnetic resonance imaging (CMR) and to assess the relationship to clinical outcomes. METHODS: One hundred and fifty four patients (51% male, mean age 72 +/- 10 years) with a diagnosis of HFpEF underwent transthoracic echocardiography and CMR during a single study visit. The CMR protocol comprised cine, stress/rest perfusion and late gadolinium enhancement imaging on a 3T scanner. Follow-up outcome data (death and heart failure hospitalization) were captured after a minimum of 6 months. RESULTS: CMR detected previously undiagnosed pathology in 42 patients (27%), who had similar baseline characteristics to those without a new diagnosis. These diagnoses consisted of: coronary artery disease (n = 20, including 14 with 'silent' infarction), microvascular dysfunction (n = 11), probable or definite hypertrophic cardiomyopathy (n = 10) and constrictive pericarditis (n = 5). Four patients had dual pathology. During follow-up (median 623 days), patients with a new CMR diagnosis were at higher risk of adverse outcome for the composite endpoint (log rank test: p = 0.047). In multivariate Cox proportional hazards analysis, a new CMR diagnosis was the strongest independent predictor of adverse outcome (hazard ratio: 1.92; 95% CI: 1.07 to 3.45; p = 0.03). CONCLUSIONS: CMR diagnosed new significant pathology in 27% of patients with HFpEF. These patients were at increased risk of death and heart failure hospitalization. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT03050593 . Retrospectively registered; Date of registration: February 06, 2017. PMID- 29321035 TI - DHEA-induced ovarian hyperfibrosis is mediated by TGF-beta signaling pathway. AB - BACKGROUND: The polycystic ovary syndrome (PCOS) is a common metabolic and endocrine disorder with pathological mechanisms remain unclear. The following study investigates the ovarian hyperfibrosis forming via transforming growth factor-beta (TGF-beta) signaling pathway in Dehydroepiandrosterone (DHEA)- induced polycystic ovary syndrome (PCOS) rat model. We furthermore explored whether TGF-betaRI inhibitor (SB431542) decreases ovarian fibrosis by counterbalancing the expression of fibrotic biomarkers. METHODS: Thirty female Sprague-Dawley rats were randomly divided into Blank group (n = 6), Oil group (n = 6), and Oil + DHEA-induced model group (n = 6 + 12). The model groups were established by subcutaneous injection of DHEA for 35 consecutive days. The 12 successful model rats were additionally divided in vehicle group (n = 6) and SB431542-treated group (n = 6). Vehicle group and SB431542-treated group, served as administration group and were intraperitoneally injected with DMSO and SB431542 for additional 14 consecutive days. Ovarian morphology, fibrin and collagen localization and expression in ovaries were detected using H&E staining, immunohistochemistry and Sirius red staining. The ovarian protein and RNA were examined using Western blot and RT-PCR. RESULTS: In DHEA-induced ovary in rat, fibrin and collagen had significantly higher levels, while the main fibrosis markers (TGF-beta, CTGF, fibronectin, a-SMA) were obviously upregulated. SB431542 significantly reduced the expression of pro-fibrotic molecules (TGF-beta, Smad3, Smad2, a-SMA) and increased anti-fibrotic factor MMP2. CONCLUSION: TGF-betaRI inhibitor (SB431542) inhibits the downstream signaling molecules of TGF-beta and upregulates MMP2, which in turn prevent collagen deposition. Moreover, ovarian hyperfibrosis in DHEA-induced PCOS rat model could be improved by TGF-betaRI inhibitor (SB431542) restraining the transcription of accelerating fibrosis genes and modulating EMT mediator. PMID- 29321037 TI - Acute aortoiliac occlusive disease during percutaneous transluminal angioplasty in the setting of ST-elevation myocardial infarction: a case report. AB - BACKGROUND: Aortoiliac occlusive disease, which is also referred to as Leriche syndrome, is a chronic atherosclerotic occlusive disease that occurs at the level of the aortic bifurcation. It is often thought to present with a triad of clinical symptoms: (1) intermittent lower extremity vascular claudication, (2) impotence, and (3) weak/absent femoral pulses. CASE PRESENTATION: We report a case of a 47-year-old Caucasian woman who presented with an acute inferior ST elevation myocardial infarction. During percutaneous transluminal angioplasty, our patient suddenly developed severe bilateral lower extremity pain, absent femoral pulses, and cool extremities. Distal aortogram revealed 95% stenosis with an apple core-like lesion in the mid-abdominal aorta. Stent placement resulted in improved blood flow to the distal aortic segment and resolution of symptoms. CONCLUSIONS: The presence of significant peripheral vascular disease, significant cardiac risk factors, and/or difficulty accessing the femoral artery should caution a transfemoral approach during percutaneous transluminal angiography. This approach may precipitate aortoiliac occlusion and/or thromboembolism to the lower extremities. We encourage interventional cardiologists to (1) take extra caution when manipulating the wire and catheter and (2) strongly consider using a transradial approach in such patients. PMID- 29321036 TI - Maternal engineered nanomaterial inhalation during gestation alters the fetal transcriptome. AB - BACKGROUND: The integration of engineered nanomaterials (ENM) is well-established and widespread in clinical, commercial, and domestic applications. Cardiovascular dysfunctions have been reported in adult populations after exposure to a variety of ENM. As the diversity of these exposures continues to increase, the fetal ramifications of maternal exposures have yet to be determined. We, and others, have explored the consequences of ENM inhalation during gestation and identified many cardiovascular and metabolic outcomes in the F1 generation. The purpose of these studies was to identify genetic alterations in the F1 generation of Sprague Dawley rats that result from maternal ENM inhalation during gestation. Pregnant dams were exposed to nano-titanium dioxide (nano-TiO2) aerosols (10 +/- 0.5 mg/m3) for 7-8 days (calculated, cumulative lung deposition = 217 +/- 1 MUg) and on GD (gestational day) 20 fetal hearts were isolated. DNA was extracted and immunoprecipitated with modified chromatin marks histone 3 lysine 4 tri methylation (H3K4me3) and histone 3 lysine 27 tri-methylation (H3K27me3). Following chromatin immunoprecipitation (ChIP), DNA fragments were sequenced. RNA from fetal hearts was purified and prepared for RNA sequencing and transcriptomic analysis. Ingenuity Pathway Analysis (IPA) was then used to identify pathways most modified by gestational ENM exposure. RESULTS: The results of the sequencing experiments provide initial evidence that significant epigenetic and transcriptomic changes occur in the cardiac tissue of maternal nano-TiO2 exposed progeny. The most notable alterations in major biologic systems included immune adaptation and organismal growth. Changes in normal physiology were linked with other tissues, including liver and kidneys. CONCLUSIONS: These results are the first evidence that maternal ENM inhalation impacts the fetal epigenome. PMID- 29321038 TI - Cross sectional study to assess the accuracy of electronic health record data to identify patients in need of lung cancer screening. AB - OBJECTIVE: Lung cancer is the leading cause of cancer death in the United States [Siegel et al. in CA Cancer J Clin 66:7-30, 1]. However, evidence from clinical trials indicates that annual low-dose computed tomography screening reduces lung cancer mortality [Humphrey et al. in Ann Intern Med 159:411-420, 2]. The objective of this study is to report results of a study designed to assess the sensitivity, specificity, and positive and negative predictive value of an electronic health record (EHR) query in comparison to patient self-report, to identify patients who may benefit from lung cancer screening. Cross sectional study comparing patient self report to EHR derived assessment of tobacco status and need for lung cancer screening. We invited 200 current or former smokers, ages 55-80 to complete a brief paper survey. 26 responded and 24 were included in the analysis. RESULTS: For 30% of respondents, there was not adequate EHR data to make a lung cancer screening determination. Compared to patient self-report, EHR derived data has a 67% sensitivity and 82% specificity for identifying patients that meet criteria for lung cancer screening. While the degree of accuracy may be insufficient to make a final lung cancer screening determination, EHR data may be useful in prompting clinicians to initiate conversations with patients in regards to lung cancer screening. PMID- 29321039 TI - Strategies to control HIV and HCV in methadone maintenance treatment in Guangdong Province, China: a system dynamic modeling study. AB - BACKGROUND: Human immunodeficiency virus (HIV) and hepatitis C virus (HCV) infections among methadone maintenance treatment (MMT) participants remain high. Optimized HIV and HCV prevention strategies for MMT clinics in resource-limited regions are urgently needed. This study aims to develop an MMT system dynamic model (SDM) to compare and optimize HIV and HCV control strategies in the MMT system. METHODS: We developed an MMT-SDM structure based on literature reviews. Model parameters were estimated from a cohort study, cross-sectional surveys and literature reviews. We further calibrated model outputs to historical data of HIV and HCV prevalence among MMT participants in 13 MMT clinics of Guangdong Province. Lastly, we simulated the impact of integrated interventions on HIV and HCV incidence among MMT participants using the MMT-SDM. RESULTS: The MMT-SDM comprises MMT clinics, MMT participants, detoxification centers, and HIV and HCV transmission, testing and treatment systems. We determined that condom promotion was the most effective way to reduce HIV infection (2013-2020: 2.86% to 1.76%) in MMT setting, followed by needle exchange program (2013-2020: 2.86% to 2.56%), psychological counseling (2013-2020: 2.86% to 2.71%) and contingency management (2013-2020: 2.86% to 2.72%). Health education had marginal impact on reducing HIV incidence among MMT participants (2013-2020:2.86% to 2.84%) from 2013 to 2020. By contrast, psychological counseling (2013-2020: 7.54% to 2.42%) and contingency management (2013-2020: 7.54% to 2.96%) had been shown to be the most effective interventions to reduce HCV incidence among MMT participants, followed by needle exchange program (2013-2020: 7.54% to 5.76%), health education (2013-2020: 7.54% to 6.35%), and condom promotion program (2013-2020: 7.54% to 6.40%). Notably, HCV treatment reduced HCV incidence by 0.32% (2013-2020: 7.54% to 7.22%). CONCLUSIONS: In conclusion, we generated a valuable system dynamic model to analyze the Chinese MMT system and to guide the decision-making process to further improve this system. This study underscores the importance of promoting condom use in MMT clinics and integrating psychosocial interventions to reduce HIV and HCV infections in MMT clinics in China. PMID- 29321040 TI - Automated image analysis detects aging in clinical-grade mesenchymal stromal cell cultures. AB - BACKGROUND: Senescent cells are undesirable in cell therapy products due to reduced therapeutic activity and risk of aberrant cellular effects, and methods for assessing senescence are needed. Early-passage mesenchymal stromal cells (MSCs) are known to be small and spindle-shaped but become enlarged upon cell aging. Indeed, cell morphology is routinely evaluated during MSC production using subjective methods. We have therefore explored the possibility of utilizing automated imaging-based analysis of cell morphology in clinical cell manufacturing. METHODS: An imaging system was adopted for analyzing changes in cell morphology of bone marrow-derived MSCs during long-term culture. Cells taken from the cultures at the desired passages were plated at low density for imaging, representing morphological changes observed in the clinical-grade cultures. The manifestations of aging and onset of senescence were monitored by population doubling numbers, expression of p16INK4a and p21Cip1/Waf1, beta-galactosidase activity, and telomeric terminal restriction fragment analysis. RESULTS: Cell area was the most statistically significant and practical parameter for describing morphological changes, correlating with biochemical senescence markers. MSCs from passages 1 (p1) and 3 (p3) were remarkably uniform in size, with cell areas between 1800 and 2500 MUm2. At p5 the cells began to enlarge resulting in a 4.8-fold increase at p6-9 as compared to p1. The expression of p16INK4a and activity of beta-galactosidase had a strong correlation with the increase in cell area, whereas the expression of p21Cip1/Waf1 reached its maximum at the onset of growth arrest and subsequently decreased. Mean telomere length shortened at an apparently constant rate during culture, from 8.2 +/- 0.3 kbp at p1, reaching 6.08 +/- 0.6 kbp at senescence. CONCLUSIONS: Imaging analysis of cell morphology is a useful tool for evaluating aging in cell cultures throughout the lifespan of MSCs. Our findings suggest that imaging analysis can reproducibly detect aging-related changes in cell morphology in MSC cultures. These findings suggest that cell morphology is still a supreme measure of cell quality and may be utilized to develop new noninvasive imaging-based methods to screen and quantitate aging in clinical-grade cell cultures. PMID- 29321041 TI - Effects of stress ulcer prophylaxis in adult ICU patients receiving renal replacement therapy (Sup-Icu RENal, SIREN): Study protocol for a pre-planned observational study. AB - BACKGROUND: Proton pump inhibitors are often used in critically ill patients to prevent gastrointestinal bleeding despite limited evidence for benefit. Patients with acute kidney injury requiring renal replacement therapy (RRT) are at high risk of gastrointestinal bleeding as (pre-)uremia induces coagulopathy through effects on platelets and coagulation cascades. No high-quality randomized clinical trials have previously assessed the benefits and harms of prophylactic proton pump inhibitor use in this high-risk population of adult critically ill patients. METHODS/DESIGN: Among the 3350 patients included in the Stress Ulcer Prophylaxis in the Intensive Care Unit (SUP-ICU) trial-an investigator-initiated international randomized clinical trial on prophylactic proton pump inhibitor versus placebo in acutely admitted adult ICU patients at risk of gastrointestinal bleeding-we will compare the benefits and harms of prophylactic use of proton pump inhibitor in patients in need of RRT versus those not requiring this treatment. We will determine the proportion of patients with clinically important bleeding, the proportion of patients with adverse events including pneumonia, Clostridium difficile enteritis, or acute myocardial ischemia in the ICU, as well as transfusion requirements. Moreover, 90 day and 365 day mortality post randomization will be investigated. As a secondary analysis, we will examine the association between acute kidney injury and RRT during ICU stay and gastrointestinal bleeding. DISCUSSION: With the outlined predefined analysis, we will characterize the balance between the benefits and harms of stress ulcer prophylaxis in acutely admitted adult ICU patients in need of RRT, including the potential interaction of allocation to proton pump inhibitor versus placebo. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02718261 . Registered on 14 March 2016. PMID- 29321042 TI - Type I IFN signature in childhood-onset systemic lupus erythematosus: a conspiracy of DNA- and RNA-sensing receptors? AB - BACKGROUND: Childhood-onset systemic lupus erythematosus (cSLE) is an incurable multi-systemic autoimmune disease. Interferon type I (IFN-I) plays a pivotal role in the pathogenesis of SLE. The objective of this study was to assess the prevalence of the IFN-I signature and the contribution of cytosolic nucleic acid receptors to IFN-I activation in a cohort of primarily white cSLE patients. METHODS: The IFN-I score (positive or negative), as a measure of IFN-I activation, was assessed using real-time quantitative PCR (RT-PCR) expression values of IFN-I signature genes (IFI44, IFI44L, IFIT1, Ly6e, MxA, IFITM1) in CD14+ monocytes of cSLE patients and healthy controls (HCs). Innate immune receptor expression was determined by RT-PCR and flow cytometry. To clarify the contribution of RNA-binding RIG-like receptors (RLRs) and DNA-binding receptors (DBRs) to IFN-I activation, peripheral blood mononuclear cells (PBMCs) from patients were treated with BX795, a TANK-binding kinase 1 (TBK1) inhibitor blocking RLR and DBR pathways. RESULTS: The IFN-I signature was positive in 57% of cSLE patients and 15% of the HCs. Upregulated gene expression of TLR7, RLRs (IFIH1, DDX58, DDX60, DHX58) and DBRs (ZBP-1, IFI16) was observed in CD14+ monocytes of the IFN-I-positive cSLE patients. Additionally, RIG-I and ZBP-1 protein expression was upregulated in these cells. Spontaneous IFN-I stimulated gene (ISG) expression in PBMCs from cSLE patients was inhibited by a TBK1 blocker. CONCLUSIONS: IFN-I activation, assessed as ISG expression, in cSLE is associated with increased expression of TLR7, and RNA and DNA binding receptors, and these receptors contribute to IFN-I activation via TBK1 signaling. TBK1 blockers may therefore be a promising treatment target for SLE. PMID- 29321044 TI - Three unreported cases of TMEM199-CDG, a rare genetic liver disease with abnormal glycosylation. AB - BACKGROUND: TMEM199 deficiency was recently shown in four patients to cause liver disease with steatosis, elevated serum transaminases, cholesterol and alkaline phosphatase and abnormal protein glycosylation. There is no information on the long-term outcome in this disorder. RESULTS: We here present three novel patients with TMEM199-CDG. All three patients carried the same set of mutations (c.13 14delTT (p.Ser4Serfs*30) and c.92G > C (p.Arg31Pro), despite only two were related (siblings). One mutation (c.92G > C) was described previously whereas the other was deemed pathogenic due to its early frameshift. Western Blot analysis confirmed a reduced level of TMEM199 protein in patient fibroblasts and all patients showed a similar glycosylation defect. The patients presented with a very similar clinical and biochemical phenotype to the initial publication, confirming that TMEM199-CDG is a non-encephalopathic liver disorder. Two of the patients were clinically assessed over two decades without deterioration. CONCLUSION: A rising number of disorders affecting Golgi homeostasis have been published over the last few years. A hallmark finding is deficiency in protein glycosylation, both in N- and O-linked types. Most of these disorders have signs of both liver and brain involvement. However, the present and the four previously reported patients do not show encephalopathy but a chronic, non-progressive (over decades) liver disease with hypertransaminasemia and steatosis. This information is crucial for the patient/families and clinician at diagnosis, as it distinguishes it from other Golgi homeostasis disorders, in having a much more favorable course. PMID- 29321043 TI - What is in your wallet? A cluster randomized trial of the effects of showing comparative patient out-of-pocket costs on primary care prescribing for uncomplicated hypertension. AB - BACKGROUND: Drug expenditures are responsible for an increasing proportion of health costs, accounting for $1.1 trillion in annual expenditure worldwide. As hundreds of billions of dollars are being spent each year on overtreatment with prescribed medications that are either unnecessary or are in excess of lowest cost-effective therapy, programs are needed that optimize fiscally appropriate use. We evaluated whether providing physicians with information on the patient out-of-pocket payment consequences of prescribing decisions that were in excess of lowest cost-effective therapy would alter prescribing decisions using the treatment of uncomplicated hypertension as an exemplar. METHODS: A single-blind cluster randomized trial was conducted over a 60-month follow-up period in 76 primary care physicians in Quebec, Canada, and their patients with uncomplicated hypertension who were using the MOXXI integrated electronic health record for drug and health problem management. Physicians were randomized to an out-of pocket expenditure module that provided alerts for comparative out-of-payment costs, thiazide diuretics as recommended first-line therapy, and tools to monitor blood pressure targets and medication compliance, or alternatively the basic MOXXI system. System software and prescription claims were used to analyze the impact of the intervention on treatment choice, adherence, and overall and out-of pocket payment costs using generalized estimating equations. RESULTS: Three thousand five-hundred ninety-two eligible patients with uncomplicated hypertension were enrolled, of whom 1261 (35.1%) were newly started (incident patient) on treatment during follow-up. There was a statistically significant increase in the prescription of diuretics in the newly treated intervention (26.6%) compared to control patients (19.8%) (RR 1.65, 95% CI 1.17 to 2.33). For patients already treated (prevalent patient), there was a statistically significant interaction between the intervention and patient age, with older patients being less likely to be switched to a diuretic. Among the incident patients, physicians with less than 15 years of experience were much more likely to prescribe a diuretic (OR 10.69; 95% CI 1.49 to 76.64) than physicians with 15 to 25 years (OR 0.67; 95%CI 0.25 to 1.78), or more than 25 years of experience (OR 1.80; 95% CI 1.23 to 2.65). There was no statistically significant effect of the intervention on adherence or out-of-pocket payment cost. CONCLUSIONS: The provision of comparative information on patient out-of-pocket payments for treatment of uncomplicated hypertension had a statistically significant impact on increasing the initiation of diuretics in incident patients and switching to diuretics in younger prevalent patients. The impact of interventions to improve the cost-effectiveness of prescribing may be enhanced by also targeting patients with tools to participate in treatment decision-making and by providing physicians with comparative out-of-pocket information on all evidence-based alternatives that would enhance clinical decision-making. TRIAL REGISTRATION: ISRCTN96253624. PMID- 29321045 TI - Stem cells and anti-aging genes: double-edged sword-do the same job of life extension. AB - Aging impacts diseases and lifespan. With current knowledge of stem cells, it is feasible to design and test interventions that delay aging and improve both health and lifespan. Stem cells, together with anti-aging genes such as Klotho, play a crucial role in delaying the aging process. Stem cells in combination with anti-aging genes make a complex and protective shield, which stand against the eroding effects of aging. Increased wear and tear of the stem cells, as well as Klotho deficiency, is expected to heavily increase cellular damage and accelerate the process of aging. Stem cells in conjugation with anti-aging genes probably receive and neutralize most of the devastating signaling effects which are known to cause premature aging. The shield of stem cells combined with anti-aging genes is a primary target for absorbing the shock of aging. If this shield neutralizes the shocks, it could lead to a youthful state, but if not it will accelerate the aging journey. In this review, we concisely discuss the neutralizing ability, operated and regulated by stem cells and other life-extension factors. We suggest that stem cell interventions that increase rejuvenation and keep in balance the expression of anti-aging genes could delay the aging phenotypes and result in prolonged lifespan. PMID- 29321046 TI - Application of causal inference methods in the analyses of randomised controlled trials: a systematic review. AB - BACKGROUND: Applications of causal inference methods to randomised controlled trial (RCT) data have usually focused on adjusting for compliance with the randomised intervention rather than on using RCT data to address other, non randomised questions. In this paper we review use of causal inference methods to assess the impact of aspects of patient management other than the randomised intervention in RCTs. METHODS: We identified papers that used causal inference methodology in RCT data from Medline, Premedline, Embase, Cochrane Library, and Web of Science from 1986 to September 2014, using a forward citation search of five seminal papers, and a keyword search. We did not include studies where inverse probability weighting was used solely to balance baseline characteristics, adjust for loss to follow-up or adjust for non-compliance to randomised treatment. Studies where the exposure could not be assigned were also excluded. RESULTS: There were 25 papers identified. Nearly half the papers (11/25) estimated the causal effect of concomitant medication on outcome. The remainder were concerned with post-randomisation treatment regimens (sequential treatments, n =5 ), effects of treatment timing (n = 2) and treatment dosing or duration (n = 7). Examples were found in cardiovascular disease (n = 5), HIV (n = 7), cancer (n = 6), mental health (n = 4), paediatrics (n = 2) and transfusion medicine (n = 1). The most common method implemented was a marginal structural model with inverse probability of treatment weighting. CONCLUSIONS: Examples of studies which exploit RCT data to address non-randomised questions using causal inference methodology remain relatively limited, despite the growth in methodological development and increasing utilisation in observational studies. Further efforts may be needed to promote use of causal methods to address additional clinical questions within RCTs to maximise their value. PMID- 29321048 TI - Danish first aid books compliance with the new evidence-based non-resuscitative first aid guidelines. AB - BACKGROUND: The European Resuscitation Council (ERC) released new guidelines on resuscitation in 2015. For the first time, the guidelines included a separate chapter on first aid for laypersons. We analysed the current major Danish national first aid books to identify potential inconsistencies between the current books and the new evidence-based first aid guidelines. METHODS: We identified first aid books from all the first aid courses offered by major Danish suppliers. Based on the new ERC first aid guidelines, we developed a checklist of 26 items within 16 different categories to assess the content; this checklist was adapted following the principle of mutually exclusive and collectively exhaustive questioning. To assess the agreement between four raters, Fleiss' kappa test was used. Items that did not reach an acceptable kappa score were excluded. RESULTS: We evaluated 10 first aid books used for first aid courses and published between 2009 and 2015. The content of the books complied with the new in 38% of the answers. In 12 of the 26 items, there was less than 50% consistency. These items include proximal pressure points and elevation of extremities for the control of bleeding, use of cervical collars, treatment for an open chest wound, burn dressing, dental avulsion, passive leg raising, administration of bronchodilators, adrenaline, and aspirin. CONCLUSIONS: Danish course material showed significant inconsistencies with the new evidence-based first aid guidelines. The new knowledge from the evidence-based guidelines should be incorporated into revised and updated first aid course material. PMID- 29321047 TI - Effects of concentrated long-chain omega-3 polyunsaturated fatty acid supplementation before radical prostatectomy on prostate cancer proliferation, inflammation, and quality of life: study protocol for a phase IIb, randomized, double-blind, placebo-controlled trial. AB - BACKGROUND: Prostate cancer is the most commonly diagnosed cancer in north American men. Few dietary or lifestyle interventions have been tested to prevent prostate cancer progression. Omega-3 fatty acid supplementation represents a promising intervention for prostate cancer patients. The aim of the study is to evaluate the effects of long-chain omega-3 polyunsaturated fatty acids (LCn3), more precisely eicosapentaenoic acid monoacylglyceride (MAG-EPA) supplementation, on prostate cancer proliferation, inflammation mediators and quality of life among men who will undergo radical prostatectomy. METHODS/DESIGN: We propose a phase IIb, randomized, double-blind placebo-controlled trial of MAG-EPA supplementation for 130 men who will undergo radical prostatectomy as treatment for a prostate cancer of Gleason score >= 7 in an academic cancer center in Quebec City. Participants will be randomized to 6 capsules of 625 mg of fish oil (MAG-EPA) per capsule containing 500 mg of EPA daily or to identically looking capsules of high oleic acid sunflower oil (HOSO) as placebo. The intervention begins 4 to 10 weeks prior to radical prostatectomy (baseline) and continues for one year after surgery. The primary endpoint is the proliferative index (Ki-67) measured in prostate cancer cells at radical prostatectomy. A secondary endpoint includes prostate tissue levels of inflammatory mediators (cytokines and proteins) at time of radical prostatectomy. Changes in blood levels of inflammatory mediators, relative to baseline levels, at time of radical prostatectomy and 12 months after radical prostatectomy will also be evaluated. Secondary endpoints also include important aspects of psychosocial functioning and quality of life such as depression, anxiety, sleep disturbances, fatigue, cognitive complaints and prostate cancer-specific quality of life domains. The changes in these outcomes, relative to baseline levels, will be evaluated at 3, 6, 9 and 12 months after radical prostatectomy. DISCUSSION: The results from this trial will provide crucial information to clarify the role of omega-3 supplementation on prostate cancer proliferation, inflammation and quality of life. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT02333435. Registered on December 17, 2014. Last updated September 6, 2016. PMID- 29321049 TI - Human liver organoids generated with single donor-derived multiple cells rescue mice from acute liver failure. AB - BACKGROUND: Acute liver failure (ALF) is a life-threatening disease with a high mortality rate. However, there are limited treatments or devices available for ALF therapy. Here, we aimed to develop a new strategy for ALF treatment by transplanting functional liver organoids (LOs) generated from single donor derived human induced pluripotent stem cell (hiPSC) endoderm, endothelial cells (ECs), and mesenchymal cells (MCs). METHODS: First, we isolated ECs and MCs from a single donor umbilical cord (UC) through enzyme digestion and characterized the UC-ECs and UC-MCs by flow cytometry. Second, using a nonviral reprogramming method, we generated same donor-derived hiPSCs from the UC-ECs and investigated their hepatic differentiation abilities. Finally, we simultaneously plated EC hiPSC endoderm, UC-ECs, and UC-MCs in a three-dimensional (3D) microwell culture system, and generated single donor cell-derived differentiated LOs for ALF mouse treatment. RESULTS: We obtained ECs and MCs from a single donor UC with high purity, and these cells provided a multicellular microenvironment that promoted LO differentiation. hiPSCs from the same donor were generated from UC-ECs, and the resultant EC-hiPSCs could be differentiated efficiently into pure definitive endoderm and further into hepatic lineages. Simultaneous plating of EC-hiPSC endoderm, UC-ECs, and UC-MCs in the 3D microwell system generated single donor cell-derived LOs (SDC-LOs) that could be differentiated into functional LOs with enhanced hepatic capacity as compared to that of EC-hiPSC-derived hepatic-like cells. When these functional SDC-LOs were transplanted into the renal subcapsules of ALF mice, they rapidly assumed hepatic functions and improved the survival rate of ALF mice. CONCLUSION: These results demonstrate that functional LOs generated from single donor cells can improve the condition of ALF mice. Functional SDC-LO transplantation provides a promising novel approach for ALF therapy. PMID- 29321050 TI - Plasminogen activator inhibitor-1: a risk factor for deep vein thrombosis after total hip arthroplasty. AB - BACKGROUND: The onset of deep vein thrombosis (DVT) in patients after total hip arthroplasty (THA) may expand or enlarge and subsequently lead to significant mortality. The objective of this study was to investigate potential risk factors for DVT in patients after THA. METHODS: Eligible patients with hip joint diseases who were scheduled for unilateral primary THA at our hospital were prospectively included into this study. The demographic and clinical features, preoperative plasma biomarkers were detailed, recorded, and compared. The multiple logistic regression analysis was used to evaluate potential risk factors for DVT. RESULTS: A total of 214 subjects were enrolled into our study cohort for the final analysis, and 23 of them have suffered DVT with an incidence of 9.5%. The performance of logistic regression analysis showed that preoperative expression of plasminogen activator inhibitor-1 (PAI-1) was an independent risk factor for the onset of DVT in patients after THA (OR 1.18, 95% CI 1.04-1.29; p = 0.011). CONCLUSIONS: Our study indicated preoperative plasma PAI-1 expression as an independent risk factor for DVT in patients who underwent THA. PMID- 29321051 TI - Midwives' respect and disrespect of women during facility-based childbirth in urban Tanzania: a qualitative study. AB - BACKGROUND: Over the last two decades, facility-based childbirths in Tanzania have only minimally increased by 10% partly because of healthcare providers' disrespect and abuse (D&A) of women during childbirth. Although numerous studies have substantiated women's experience of D&A during childbirth by healthcare providers, few have focused on how D&A occurred during the midwives' actual care. This study aimed to describe from actual observations the respectful and disrespectful care received by women from midwives during their labor period in two hospitals in urban Tanzania. METHODS: This descriptive qualitative study involved naturalistic observation of two health facilities in urban Tanzania. Fourteen midwives were purposively recruited for the one-on-one shadowing of their care of 24 women in labor from admission to the fourth stage of labor. Observations of their midwifery care were analyzed using content analysis. RESULTS: All the 14 midwives showed both respectful and disrespectful care and some practices that have not been explicated in previous reports of women's experiences. For respectful care, five categories were identified: 1) positive interactions between midwives and women, 2) respect for women's privacy, 3) provision of safe and timely midwifery care for delivery, 4) active engagement in women's labor process, and 5) encouragement of the mother-baby relationship. For disrespectful care, five categories were recognized: 1) physical abuse, 2) psychological abuse, 3) non-confidential care, 4) non-consented care, and 5) abandonment of care. Two additional categories emerged from the unprioritized and disorganized nursing and midwifery management: 1) lack of accountability and 2) unethical clinical practices. CONCLUSIONS: Both respectful care and disrespectful care of midwives were observed in the two health facilities in urban Tanzania. Several types of physical and psychological abuse that have not been reported were observed. Weak nursing and midwifery management was found to be a contributor to the D&A of women. To promote respectful care of women, pre-service and in-service trainings, improvement of working conditions and environment, empowering pregnant women, and strengthening health policies are crucial. PMID- 29321052 TI - ASGDB: a specialised genomic resource for interpreting Anopheles sinensis insecticide resistance. AB - BACKGROUND: Anopheles sinensis is an important malaria vector in Southeast Asia. The widespread emergence of insecticide resistance in this mosquito species poses a serious threat to the efficacy of malaria control measures, particularly in China. Recently, the whole-genome sequencing and de novo assembly of An. sinensis (China strain) has been finished. A series of insecticide-resistant studies in An. sinensis have also been reported. There is a growing need to integrate these valuable data to provide a comprehensive database for further studies on insecticide-resistant management of An. sinensis. RESULTS: A bioinformatics database named An. sinensis genome database (ASGDB) was built. In addition to being a searchable database of published An. sinensis genome sequences and annotation, ASGDB provides in-depth analytical platforms for further understanding of the genomic and genetic data, including visualization of genomic data, orthologous relationship analysis, GO analysis, pathway analysis, expression analysis and resistance-related gene analysis. Moreover, ASGDB provides a panoramic view of insecticide resistance studies in An. sinensis in China. In total, 551 insecticide-resistant phenotypic and genotypic reports on An. sinensis distributed in Chinese malaria-endemic areas since the mid-1980s have been collected, manually edited in the same format and integrated into OpenLayers map-based interface, which allows the international community to assess and exploit the high volume of scattered data much easier. The database has been given the URL: http://www.asgdb.org /. CONCLUSIONS: ASGDB was built to help users mine data from the genome sequence of An. sinensis easily and effectively, especially with its advantages in insecticide resistance surveillance and control. PMID- 29321053 TI - Data sharing in clinical trials - practical guidance on anonymising trial datasets. AB - BACKGROUND: There is an increasing demand by non-commercial funders that trialists should provide access to trial data once the primary analysis is completed. This has to take into account concerns about identifying individual trial participants, and the legal and regulatory requirements. METHODS: Using the good practice guideline laid out by the work funded by the Medical Research Council Hubs for Trials Methodology Research (MRC HTMR), we anonymised a dataset from a recently completed trial. Using this example, we present practical guidance on how to anonymise a dataset, and describe rules that could be used on other trial datasets. We describe how these might differ if the trial was to be made freely available to all, or if the data could only be accessed with specific permission and data usage agreements in place. RESULTS: Following the good practice guidelines, we successfully created a controlled access model for trial data sharing. The data were assessed on a case-by-case basis classifying variables as direct, indirect and superfluous identifiers with differing methods of anonymisation assigned depending on the type of identifier. A final dataset was created and checks of the anonymised dataset were applied. Lastly, a procedure for release of the data was implemented to complete the process. CONCLUSIONS: We have implemented a practical solution to the data anonymisation process resulting in a bespoke anonymised dataset for a recently completed trial. We have gained useful learnings in terms of efficiency of the process going forward, the need to balance anonymity with data utilisation and future work that should be undertaken. PMID- 29321054 TI - The association between daily concentrations of air pollution and visits to a psychiatric emergency unit: a case-crossover study. AB - BACKGROUND: Air pollution is one of the leading causes of mortality and morbidity worldwide. Experimental studies, and a few epidemiological studies, suggest that air pollution may cause acute exacerbation of psychiatric disorders, and even increase the rate of suicide attempts, but epidemiological studies on air pollution in association with psychiatric disorders are still few. Our aim was to investigate associations between daily fluctuations in air pollution concentrations and the daily number of visits to a psychiatric emergency unit. METHODS: Data from Sahlgrenska University Hospital, Gothenburg, Sweden, on the daily number of visits to the Psychiatric emergency unit were combined with daily data on monitored concentrations of respirable particulate matter(PM10), ozone(O3), nitrogen dioxides(NO2) and temperature between 1st July 2012 and 31st December 2016. We used a case-crossover design to analyze data with conditional Poisson regression models allowing for over-dispersion. We stratified data on season. RESULTS: Visits increased with increasing PM10 levels during the warmer season (April to September) in both single-pollutant and two-pollutant models. For example, an increase of 3.6% (95% Confidence Interval, CI, 0.4-7.0%) was observed with a 10 MUg/m3 increase in PM10 adjusted for NO2. In the three pollutant models (adjusting for NO2 and O3 simultaneously) the increase was 3.3% (95% CI, -0.2-6.9). There were no clear associations between the outcome and NO2, O3, or PM10 during the colder season (October to March). CONCLUSIONS: Ambient air particle concentrations were associated with the number of visits to the Psychiatric emergency unit in the warm season. The results were only borderline statistically significant in the fully adjusted (three-pollutant) models in this small study. The observation could be interpreted as indicative of air pollution as either exacerbating an underlying psychiatric disorder, or increasing mental distress, even in areas with comparatively low levels of air pollution. In combination with the severe impact of psychiatric disorders and mental distress on society and individuals, our results are a strong warrant for future research in this area. PMID- 29321056 TI - MRI appearance of ovarian serous borderline tumors of the micropapillary type compared to that of typical ovarian serous borderline tumors: radiologic pathologic correlation. AB - BACKGROUND: Serous borderline tumor (SBT) of the micropapillary type (SBT-MP) became one of the major pathological SBT diagnoses in addition to typical SBT, and was also defined as "non-invasive" low-gradeserous carcinoma according to the World Health Organization (WHO) classification in 2014. In this study, we investigated the MRI appearance of SBT-MP compared to that of typical SBT in order to identify specific imaging features of SBT-MP that correspond to pathological findings. METHODS: MR images of 6 histologically proven ovarian SBT MP in four patients and 14 typical SBT in ten patients were reviewed retrospectively. Images were evaluated for laterality, size and morphology of the lesion and the solid component (SC) and signal intensity (SI) of the SC. MRI findings were correlated with pathological findings. RESULTS: The patients with SBT-MP (mean 26.3 years) were younger than those with typical SBT (mean 44.5 years). Postoperative staging in patients with SBT-MP was II in two and III in two cases, while staging for typical SBT was I in seven, II in one and III in two cases. The morphologic patterns of SBT-MP were a unilateral cystic mass with intracystic mural nodules (CwMN) (n = 2), bilateral solid papillary masses (SM), and bilateral SM with CwMN. The pattern of typical SBT was CwMN (n = 13) in all but one lesion (SM with CwMN). All SCs showed inhomogeneous slight hyperintensity on T2 weighted images (WI) and high SI on diffusion-WI (DWI) except for in one typical SBT. Although diffuse proliferation of the tumor cells in micropapillary projections with little stroma seemed to correspond to inhomogeneous slightly hyperintense foci in SC on T2WI and high SI on DWI, similar MR findings were observed in typical SBT in all lesions on T2WI and 11 of 12 lesions on DWI. In typical SBT, inhomogeneous slightly hyperintense foci in SC on T2WI and high SI on DWI corresponded to highly cellular foci with densely branched papillae. CONCLUSION: Pathological findings and clinical behavior of SBT-MP differed from those of typical SBT, but morphology and SI of SC on MRI were similar, with papillary projections demonstrating inhomogeneous slight hyperintensity on T2WI and high SI on DWI. PMID- 29321055 TI - Trends and correlates of overweight/obesity in Czech adolescents in relation to family socioeconomic status over a 12-year study period (2002-2014). AB - BACKGROUND: This study examined a) trends in overweight/obesity, moderate-to vigorous physical activity (MVPA), and screen time (ST) among Czech adolescents over a 12-year study period (2002-2014) in relation to family affluence (FA) and b) correlates of adolescent overweight/obesity from different FA categories. METHODS: A nationally representative sample of 18,250 adolescents (51.4% girls) aged 10.5-16.5 years was drawn from the Czech Health Behaviour in School-aged Children questionnaire-based surveys in 2002, 2006, 2010, and 2014. Using the FA scale, the socioeconomic status (SES) of the respondents' families was assessed. SES-stratified trends in the prevalence of overweight/obesity meeting the MVPA (>=60 min/day), and ST (<=2 h/day) recommendations were assessed using logistic regression. RESULTS: A trend-related significant increase (p < 0.05) in the prevalence of overweight/obesity was observed in low-/medium-FA boys and medium /high-FA girls. Unlike in high-FA adolescents, a significant decrease was revealed in the rates of meeting the MVPA recommendation in low-FA boys (28.9%2002 -> 23.3%2014, OR = 0.75, 95% CI = 0.59-0.95, p < 0.05) and girls (22.3%2002 -> 17.3%2014, OR = 0.73, 95% CI = 0.57-0.92, p < 0.01). A significant (p < 0.001) trend-related increase in excessive ST was evident in adolescents regardless of gender and FA category. Generally, girls and older adolescents had lower odds of overweight/obesity than boys and 11-year-old adolescents. While in the high-FA category of adolescents, achieving 60 min of MVPA daily and the absence of excessive ST on weekdays significantly (p < 0.01) reduced their odds of being overweight/obese, in low-FA adolescents this was not the case. CONCLUSIONS: High rates of overweight/obesity and a poor level of daily MVPA among low-FA children provide disturbing evidence highlighting the necessity of public health efforts to implement obesity reduction interventions for this disadvantaged population. PMID- 29321057 TI - Influenza A virus infection impacts systemic microbiota dynamics and causes quantitative enteric dysbiosis. AB - BACKGROUND: Microbiota integrity is essential for a growing number of physiological processes. Consequently, disruption of microbiota homeostasis correlates with a variety of pathological states. Importantly, commensal microbiota provide a shield against invading bacterial pathogens, probably by direct competition. The impact of viral infections on host microbiota composition and dynamics is poorly understood. Influenza A viruses (IAV) are common respiratory pathogens causing acute infections. Here, we show dynamic changes in respiratory and intestinal microbiota over the course of a sublethal IAV infection in a mouse model. RESULTS: Using a combination of 16S rRNA gene specific next generation sequencing and qPCR as well as culturing of bacterial organ content, we found body site-specific and transient microbiota responses. In the lower respiratory tract, we observed only minor qualitative changes in microbiota composition. No quantitative impact on bacterial colonization after IAV infection was detectable, despite a robust antimicrobial host response and increased sensitivity to bacterial super infection. In contrast, in the intestine, IAV induced robust depletion of bacterial content, disruption of mucus layer integrity, and higher levels of antimicrobial peptides in Paneth cells. As a functional consequence of IAV-mediated microbiota depletion, we demonstrated that the small intestine is rendered more susceptible to bacterial pathogen invasion, in a Salmonella typhimurium super infection model. CONCLUSION: We show for the first time the consequences of IAV infection for lower respiratory tract and intestinal microbiobiota in a qualitative and quantitative fashion. The discrepancy of relative 16S rRNA gene next-generation sequencing (NGS) and normalized 16S rRNA gene-specific qPCR stresses the importance of combining qualitative and quantitative approaches to correctly analyze composition of organ associated microbial communities. The transiently induced dysbiosis underlines the overall stability of microbial communities to effects of acute infection. However, during a short-time window, specific ecological niches might lose their microbiota shield and remain vulnerable to bacterial invasion. PMID- 29321059 TI - Intrarater reliability of the Humac NORM isokinetic dynamometer for strength measurements of the knee and shoulder muscles. AB - OBJECTIVE: To determine the intrarater reliability of the Humac NORM isokinetic dynamometer for concentric and eccentric strength tests of knee and shoulder muscles. RESULTS: 54 participants (50% female, average age 20.9 +/- 3.1 years) performed concentric and eccentric strength measures of the knee extensors and flexors, and the shoulder internal and external rotators on two different Humac NORM isokinetic dynamometers, which were situated at two different centers. The knee extensors and flexors were tested concentrically at 60 degrees and 180 degrees /s, and eccentrically at 60 degrees s. Concentric strength of the shoulder internal and external rotators, and eccentric strength of the external rotators were measured at 60 degrees and 120 degrees /s. We calculated intraclass correlation coefficients (ICCs), standard error of measurement, standard error of measurement expressed as a %, and the smallest detectable change to determine reliability and measurement error. ICCs for the knee tests ranged from 0.74 to 0.89, whereas ICC values for the shoulder tests ranged from 0.72 to 0.94. Measurement error was highest for the concentric test of the knee extensors and lowest for the concentric test of shoulder external rotators. PMID- 29321060 TI - "Available upon request": not good enough for microbiome data! PMID- 29321058 TI - Graphene oxide conjugated with polymers: a study of culture condition to determine whether a bacterial growth stimulant or an antimicrobial agent? AB - BACKGROUND: The results showed that the deciding factor is the culture medium in which the bacteria and the graphene oxide (GO) are incubated at the initial manipulation step. These findings allow better use of GO and GO-based materials more and be able to clearly apply them in the field of biomedical nanotechnology. RESULTS: To study the use of GO sheets applied in the field of biomedical nanotechnology, this study determines whether GO-based materials [GO, GO polyoxyalkyleneamine (POAA), and GO-chitosan] stimulate or inhibit bacterial growth in detail. It is found that it depends on whether the bacteria and GO based materials are incubated with a nutrient at the initial step. This is a critical factor for the fortune of bacteria. GO stimulates bacterial growth and microbial proliferation for Gram-negative and Gram-positive bacteria and might also provide augmented surface attachment for both types of bacteria. When an external barrier that is composed of GO-based materials forms around the surface of the bacteria, it suppresses nutrients that are essential to microbial growth and simultaneously produces oxidative stress, which causes bacteria to die, regardless of whether they have an outer-membrane-Gram-negative-bacteria or lack an outer-membrane-Gram-positive-bacteria, even for high concentrations of biocompatible GO-POAA. The results also show that these GO-based materials are capable of inducing reactive oxygen species (ROS)-dependent oxidative stress on bacteria. Besides, GO-based materials may act as a biofilm, so it is hypothesized that they suppress the toxicity of low-dose chitosan. CONCLUSION: Graphene oxide is not an antimicrobial material but it is a general growth enhancer that can act as a biofilm to enhance bacterial attachment and proliferation. However, GO-based materials are capable of inducing ROS-dependent oxidative stress on bacteria. The applications of GO-based materials can clearly be used in antimicrobial surface coatings, surface-attached stem cells for orthopedics, antifouling for biocides and microbial fuel cells and microbial electro-synthesis. PMID- 29321061 TI - Enoxaparin attenuates doxorubicin induced cardiotoxicity in rats via interfering with oxidative stress, inflammation and apoptosis. AB - BACKGROUND: Doxorubicin (DOX) is commonly used in the treatment of many types of cancers but its cardiotoxicity is limiting its clinical use. Beyond its anticoagulant action, enoxaparin (ENX), a low molecular weight heparin, has been shown to exert multiple pharmacological actions including antioxidant, anti inflammatory and antiapoptotic effects. Therefore, the current study aimed to assess if ENX could ameliorate cardiotoxicity induced by DOX. METHODS: Twenty-one adult male Wistar albino rats were randomly allocated into three groups (n = 7 each) of control, receiving 0.9% saline (i.p.), DOX, receiving 2.5 mg/kg of DOX (i.p.) thrice weekly; and DOX + ENX, receiving ENX (250 IU/kg/day i.p.) and a DOX dose equivalent to that of the DOX only group. RESULTS: DOX-induced cardiotoxicity was indicated by marked increases in cardiac troponin I (cTnI) and severe histological lesions, which significantly correlated with cardiotoxicity, oxidative stress, inflammation and apoptosis markers, compared to controls. DOX group also showed elevations in malondialdehyde (MDA), a marker of oxidative stress, and reductions in total antioxidant capacity (TAC). Cardiac inflammatory markers including tumor necrosis factor alpha (TNF-alpha) and interleukin-1 beta (IL-1beta) and caspase-3, an apoptotic marker, were also elevated in the DOX group. DOX, however, did not significantly alter brain natriuretic peptide (BNP) levels. ENX significantly attenuated, but not completely reversed, DOX-induced cardiotoxicity through lowering cTnI and improving cardiomyopathy histopathological scores as compared to the DOX group. ENX also decreased MDA, increased TAC of rats' heart to levels relatively comparable to control. Significant reductions in TNF-alpha, IL-1beta and caspase-3 were also observed following ENX treatment relative to the DOX only group. CONCLUSIONS: Collectively, these results describe a cardioprotective effect for ENX against DOX-induced cardiotoxicity which is likely facilitated via suppression of oxidative stress, inflammation and apoptosis. PMID- 29321062 TI - Notch signaling triggered via the ligand DLL4 impedes M2 macrophage differentiation and promotes their apoptosis. AB - BACKGROUND: Notch signaling controls many cellular processes, including cell fate determination, cell differentiation, proliferation and apoptosis. In mammals, four Notch receptors (Notch 1-4) can interact with five distinct ligands [Jagged1, Jagged2, Delta-like 1 (DLL1), DLL3, and DLL4]. We previously reported that Notch activation is modulated in endothelial cells and monocytes during inflammation and showed that inflammation upregulates DLL4 on endothelial cells. DLL4 promotes differentiation of blood monocytes into proinflammatory M1 macrophages. Here, we further investigated the ability of DLL4 to interfere with the polarization of blood monocytes into immunosuppressive M2 macrophages. METHODS: Human blood monocytes were differentiated in vitro into M0 macrophages and then polarized into M1 or M2 macrophages with LPS/IFNgamma and IL-4, respectively. Polarization steps were performed in the presence of immobilized recombinant DLL4. Immune phenotype and apoptosis of macrophage subsets were analyzed and quantified by flow cytometry. Regulatory effects of DLL4 on gene expression, cell signaling and apoptotic pathways were investigated by QPCR and western blots. RESULTS: The phenotype of M2 macrophages was subject to specific alterations in the presence of recombinant DLL4. DLL4 inhibits the upregulation of IL-4 induced M2 markers such as CD11b, CD206, and CD200R. Survival of macrophages upon M2 polarization was also strongly reduced in the presence of DLL4. DLL4 induces a caspase3/7-dependent apoptosis during M2 but not M1 macrophage polarization. The Notch ligand DLL1 has no apoptotic effect. Both DLL4 signaling via Notch1 as well as DLL4-mediated apoptosis are Notch-dependent. Fully differentiated M2 macrophages became resistant to DLL4 action. Mechanistically, DLL4 selectively upregulates gene expression in macrophages upon M2 polarization, thereby affecting the Notch pattern (Notch1, 3, Jag1), activity (HES1), and transcription (IRF5, STAT1). The pro-apoptotic effectors Bax and Bak and the BH3-only proteins Bid and Bim seem to convey DLL4 apoptotic signal. CONCLUSION: Interplay between the DLL4/Notch and IL-4/IL-4R signaling pathways impairs M2 differentiation. Thus, DLL4 may drive a Notch-dependent selection process not only by promoting M1 macrophage differentiation but also by preventing M2 macrophage differentiation through inhibition of M2-specific gene expression and apoptotic cell death. PMID- 29321063 TI - First clinical case report of local microinjection of autologous fat and adipose derived stromal vascular fraction for perianal fistula in Crohn's disease. AB - : Mesenchymal stem cell therapy is a promising treatment for perianal Crohn's fistulas refractory to conventional therapy, which are an extremely morbid complication and a true therapeutic challenge. Autologous adipose-derived stromal vascular fraction (ADSVF) is an easily accessible source of cells with angiogenic, anti-inflammatory, immunomodulatory, and regenerative properties. Here, we describe a case involving a patient with severe perianal Crohn's fistulas refractory to the best medical and surgical practices who received local treatment with ADSVF and microfat. This patient was first examined under anesthesia with drainage via seton placement; 1 week later, on a single day, he underwent adipose tissue extraction, ADSVF and microfat preparation, and the local injection of 14 ml of microfat and approximately 20 million viable ADSVF cells into the soft tissue around the fistulas. No serious adverse events were observed. At the first endpoint at 12 weeks, the fistula had clinically healed with complete re-epithelialization of all external openings; no fistula tract was detected on magnetic resonance imaging, confirming this finding. This good clinical outcome was sustained at 48 weeks and was associated with a reduction in the severity of perianal disease and an improvement in quality of life. The current case highlights the therapeutic potential of a new cellular treatment for Crohn's patients with refractory perianal fistulas based on the innovative hypothesis that the combined action of ADSVF in association with the trophic characteristics of a microfat graft could be beneficial for this condition. TRIAL REGISTRATION: EudraCT number 201325, NCT02520843 . Registered on 5 August 2015. PMID- 29321064 TI - The role of ACE2, angiotensin-(1-7) and Mas1 receptor axis in glucocorticoid induced intrauterine growth restriction. AB - BACKGROUND: Plasma and urine levels of the potent vasodilator Ang-(1-7) are elevated in mid and late pregnancy and are correlated with elevated placental angiogenesis, fetal blood flow, and rapid fetal growth. We hypothesized that Ang (1-7), its receptor (Mas1) and the enzymes involved in Ang-(1-7) production (ACE2 and Membrane metallo-endopeptidase; MME) are down regulated in response to glucocorticoid administration contributing to IUGR. METHODS: Pregnant female Sprague-Dawley rats were injected with dexamethasone (DEX; 0.4 mg/kg/day) starting from 14 day gestation (dg) till sacrifice at 19 or 21 dg while control groups were injected with saline (n = 6/group). The gene and protein expression of ACE2, MME, Ang-(1-7) and Mas1 receptor in the placental labyrinth (LZ) and basal zones (BZ) were studied. RESULTS: DEX administration caused a reduction in LZ weight at 19 and 21 dg (p < 0.001). IUGR, as shown by decreased fetal weights, was evident in DEX treated rats at 21 dg (p < 0.01). ACE2 gene expression was elevated in the LZ of control placentas at 21 dg (p < 0.01) compared to 19 dg and DEX prevented this rise at both gene (p < 0.01) and protein levels (p < 0.05). In addition, Ang-(1-7) protein expression in LZ was significantly reduced in DEX treated rats at 21 dg (p < 0.05). On the other hand, Mas1 and MME were upregulated in LZ at 21 dg in both groups (p < 0.05 and p < 0.001, respectively). CONCLUSION: The results of this study indicate that a reduced expression of ACE2 and Ang-(1-7) in the placenta by DEX treatment may be responsible for IUGR and consequent disease programming later in life. PMID- 29321065 TI - Developmental changes in shortening of pro-saccade reaction time while maintaining neck flexion position. AB - BACKGROUND: We investigated developmental changes in shortening of pro-saccade reaction time while maintaining neck flexion. METHODS: Subjects comprised 135 children (3-14 years) and 29 young adults (19-23 years). Children were divided into six groups in 2-year age strata. Pro-saccade reaction tasks for 30 s were performed in neck rest and flexion positions. Reaction times under each position were averaged in every 10-s period. RESULTS: Under neck rest position, reaction time in the 0-10 s period was significantly longer in the 3- to 4-year-old group than in the 5- to 6-year-old group and above. No significant age effect was found for reaction time in the 0-10 s period in the 5- to 6-year-old group and above. Although a significant effect of neck flexion was not observed until the 9- to 10 year-old group, significant shortening of reaction time with neck flexion was found in the 11- to 12-year-old group and above. Furthermore, this shortening was maintained until the first 20-s period in the 11- to 12-year-old group and during the entire 30 s in the 13- to 14-year-old and above. CONCLUSIONS: These results suggest that brain activation with the maintenance of neck flexion, related to shortening of the pro-saccade reaction time, was found from a later age of approximately 11 years and above, compared with the age at which information processing function in the pro-saccade was enhanced. In addition, brain activation with the maintenance of neck flexion was sustained longer with age. PMID- 29321066 TI - Perioperative management of antiplatelet therapy in patients undergoing non cardiac surgery following coronary stent placement: a systematic review. AB - BACKGROUND: The correct perioperative management of antiplatelet therapy (APT) in patients undergoing non-cardiac surgery (NCS) is often debated by clinicians. American College of Cardiology (ACC) and American Heart Association (AHA) guidelines recommend postponing elective NCS at least 3 months after stent implantation. Regardless of the timing of surgery, ACC/AHA guidelines recommend continuing at least ASA throughout the perioperative period and ideally continuing dual APT (DAPT) therapy "unless surgery demands discontinuation." The objective of this review was to ascertain the risks and benefits of APT in the perioperative period, to assess how these risks and benefits vary by APT management, and the significance of length of time since stent implantation before operative intervention. METHODS: PubMed, Web of Science, and Scopus were searched from inception through October 2017. Articles were included if patients were post PCI with stent placement (bare metal [BMS] or drug eluting [DES]), underwent elective NCS, and had rates of major adverse cardiac events (MACE) or bleeding events associated with pre and perioperative APT therapy. RESULTS: Of 4882 screened articles, we included 16 studies in the review (1 randomized controlled trial and 15 observational studies). Studies were small (< 50: n = 5, 51-150: n = 5, >150: n = 6). All studies included DES with 7 of 16 also including BMS. Average time from stent to NCS was variable (< 6 months: n = 3, 6-12 months: n = 1, > 12 months: n = 6). At least six different APT strategies were described. Six studies further utilized bridging protocols using three different pharmacologic agents. Studies typically included multiple surgical fields with varying degrees of invasiveness. Across all APT strategies, rates of MACE/bleeding ranged from 0 to 21% and 0 to 22%. There was no visible trend in MACE/bleeding rates within a given APT strategy. Stratifying the articles by type of surgery, timing of discontinuation of APT therapy, bridging vs. no bridging, and time since stent placement did not help explain the heterogeneity. CONCLUSIONS: Evidence regarding perioperative APT management in patients with cardiac stents undergoing NCS is insufficient to guide practice. Other clinical factors may have a greater impact than perioperative APT management on MACE and bleeding events. SYSTEMATIC REVIEW REGISTRATION: PROSPERO CRD42016036607. PMID- 29321067 TI - The effects of essential oil mouthrinses with or without alcohol on plaque and gingivitis: a randomized controlled clinical study. AB - BACKGROUND: The efficacy of several variants of essential oil mouthrinses has been studied extensively. This is the first study to compare the anti-plaque and anti-gingivitis efficacy of two marketed essential oil mouthrinses: one is an alcohol containing mouthrinse and the other one is an alcohol-free mouthrinse. METHODS: This examiner-blind, parallel-group study randomized subjects to three groups: 1) Mechanical Oral Hygiene (MOH) only; 2) MOH plus Alcohol-Containing essential oil Mouthrinse (ACM); 3) MOH plus Alcohol-Free essential oil Mouthrinse (AFM). Primary endpoint was whole-mouth mean Modified Gingival Index (MGI) at six months. Secondary endpoints included whole-mouth mean MGI at one and three months, and whole-mouth mean Plaque Index (PI) and whole-mouth mean Bleeding Index (BI) at one, three and six months. Safety assessments were conducted at all time points. RESULTS: A total of 370 subjects were enrolled; 348 subjects completed the study. After six months, subjects using essential oil mouthrinses with or without alcohol showed significant reduction (p < 0.001) in gingivitis (28.2% and 26.7%, respectively) and significant reduction (p < 0.001) in plaque (37.8% and 37.0%, respectively), compared to those performing MOH only. Significant reductions in MGI, PI, and BI (p < 0.001) were observed at one and three months and also at six months for mean BI. No statistically significant differences were observed for all measured indices between ACM and AFM groups at any time point. Both mouthrinses were well tolerated. CONCLUSIONS: No significant differences were observed in the efficacy of ACM and AFM to reduce plaque and gingivitis, when used in addition to MOH, over six months. TRIAL REGISTRATION: The trial was registered on clinicaltrials.gov on November 30, 2016. The registration number is NCT02980497 . PMID- 29321068 TI - Psychosocial issues discovered through reflective group dialogue between medical students. AB - BACKGROUND: The biopsychosocial model is a comprehensive approach emphasizing holistic medical care. However, medical curricula that incorporate narrative reflective writing and group dynamic discussion of psychosocial issues among patients and their family members in reflective dialogue groups are currently underutilized. The aim of this study was to determine psychosocial issues among patients and their family members through medical students' reflective dialogue groups. METHODS: This study was completed as part of a pediatric clerkship. Fifty medical students were rotated to the department of Pediatrics. They completed a narrative writing assignment concerning patients' psychosocial issues and participated in a reflective group discussion during the rotation. The recordings of the six reflective group sessions were transcribed for thematic analysis. A six-step theme generation process was conducted in the first reading stage of all transcripts by four researchers. Subsequently, initial codes were generated and potential themes sought before possible themes were reviewed and thematic maps generated. Names for each theme were defined and a scholarly report of the analysis was presented through a consensus-based approach. RESULTS: A total of 108 psychosocial issues were coded and categorized as the following six main themes: medical communication, the intricate medical ecological system, role and function of a family, development of medical professionalism, ethical dilemmas, and various patient perspectives from diverse cultural backgrounds. All these themes underlie the complexity of clinical encounters. CONCLUSIONS: Clinical care is an extremely complex interactive ecological network involving human behavior, family, and public health care systems. The discovery of psychosocial problems by medical students as narrators in this study illustrates that medical care should focus not only on illnesses but also patients' psychosocial narratives. PMID- 29321069 TI - Gastroenterologist and primary care perspectives on a post-endoscopy discharge policy: impact on clinic wait times, provider satisfaction and provider workload. AB - BACKGROUND: To reduce unnecessary ambulatory gastroenterology (GI) visits and increase access to GI care, San Francisco Health Network gastroenterologists and primary care providers implemented guidelines in 2013 that discharged certain patients back to primary care after endoscopy with formal written recommendations. This study assesses the longer-term impact of this policy on GI clinic access, workflow, and provider satisfaction. METHODS: An email-based survey assessed gastroenterologist and primary care provider (PCP) opinions about the discharge process. Administrative data and chart review were used to assess clinic access, intervention fidelity, and re-referral rates. RESULTS: 102/299 (34%) of PCPs and 5/7 (71%) of gastroenterologists responded to the survey. 74% of PCPs and 100% of gastroenterologists were satisfied or very satisfied with the discharge process. 80% of gastroenterologists believed the discharge process decreased their workload, while 53.5% of primary care providers believed it increased their workload. 6.7% of patients discharged to primary care in 2013 had re-referrals to GI. Wait time for the third-next-available new outpatient GI clinic appointment had previously decreased from 158 days (2012, pre intervention) to 74 days (2013, post-intervention). In 2015, wait time was 19 days (p < 0.001 for 2012 vs. 2015). CONCLUSIONS: Primary care providers and gastroenterologists are satisfied with an intervention to discharge patients from gastroenterology to primary care after certain endoscopic procedures, although this conclusion is limited by a relatively low PCP survey response rate. Discharging appropriate patients using consensus criteria from the gastroenterology clinic was instrumental in sustainably reducing clinic wait times with low re-referral rates. PMID- 29321070 TI - The effect of methamphetamine abuse on dental caries and periodontal diseases in an Eastern China city. AB - BACKGROUND: Dental diseases are among the most frequently reported health problems in drug abusers. However, few studies have been conducted on oral health of methamphetamine (meth) abusers in China. The aim of the present study was to investigate the caries and periodontal health profile of former meth abusers in Eastern China. METHODS: A cross-sectional study was conducted on 162 former meth abusers in the male Zhoushan Compulsory Detoxification Center. A standardized questionnaire, which collected information about age, drug-use duration / pattern, oral hygiene habit and systemic diseases, was administered. Then, a dental examination was performed to investigate the severity of dental caries and periodontal diseases. In evaluating dental caries, the prevalence of dental caries, the scores of decayed teeth (DT), missing teeth (MT), filled teeth (FT), and decayed, missing, filled teeth (DMFT) were recorded. In evaluating periodontal diseases, community periodontal index (CPI), and the prevalence of gingival bleeding, dental calculus, periodontal pocket and loose teeth, were recorded. Additionally, the non-parametric test was adopted to analyze the potential risk factors via SPSS. RESULTS: All the participants abused meth by inhalation. The mean scores of DT, MT, FT and DMFT in the former meth users were 2.72 +/- 2.78, 3.07 +/- 3.94, 0.33 +/- 1.03 and 6.13 +/- 5.20 respectively. The prevalence of gingival bleeding, dental calculus, periodontal pocket and loose teeth was 97.53%, 95.68%, 51.23% and 9.26% respectively. The DT, DMFT and CPI scores in those who had abused meth for longer than 4 years were significantly higher than those who abused for less than 4 years (P = 0.039, 0.045, P < 0.001, respectively). The DT score in those who brushed their teeth more than twice a day were significantly lower than those who brushed less (P = 0.018). CONCLUSIONS: The status of caries and periodontal diseases among former male meth users in Eastern China was poor. Prolonged drug abuse and lower frequency of tooth brushing may be the risk factors of their poor status of caries and periodontal diseases. PMID- 29321071 TI - Head circumference - a useful single parameter for skull volume development in cranial growth analysis? AB - BACKGROUND: The measurement of maximal head circumference is a standard procedure in the examination of childrens' cranial growth and brain development. The objective of the study was to evaluate the validity of maximal head circumference to cranial volume in the first year of life using a new method which includes ear to-ear over the head distance and maximal cranial length measurement. METHODS: 3D surface scans for cranial volume assessment were conducted in this method comparison study of 44 healthy Caucasian children (29 male, 15 female) at the ages of 4 and 12 months. RESULTS: Cranial volume increased from measurements made at 4 months to 12 months of age by an average of 1174 +/- 106 to 1579 +/- 79 ml. Maximal cranial circumference increased from 43.4 +/- 9 cm to 46.9 +/- 7 cm and the ear-to ear measurement increased from 26.3 +/- 21 cm to 31.6 +/- 18 cm at the same time points. There was a monotone association between maximal head circumference (HC) and increase in volume, yet a backwards inference from maximal circumference to the volume had a predictive value of only 78% (adjusted R2). Including the additional measurement of distance from ear to ear strengthened the ability of the model to predict the true value attained to 90%. The addition of the parameter skull length appeared to be negligible. CONCLUSION: The results demonstrate that for a distinct improvement in the evaluation of a physiological cranial volume development, the additional measurement of the ear-to ear distance using a measuring tape is expedient, and, especially for cases with pathological skull changes, such as craniosynostosis, ought to be conducted. PMID- 29321072 TI - Tissue-specific transcriptomes of Anisakis simplex (sensu stricto) and Anisakis pegreffii reveal potential molecular mechanisms involved in pathogenicity. AB - BACKGROUND: Larval stages of the sibling species of parasitic nematodes Anisakis simplex (sensu stricto) (s.s.) (AS) and Anisakis pegreffii (AP) are responsible for a fish-borne zoonosis, known as anisakiasis, that humans aquire via the ingestion of raw or undercooked infected fish or fish-based products. These two species differ in geographical distribution, genetic background and peculiar traits involved in pathogenicity. However, thus far little is known of key molecules potentially involved in host-parasite interactions. Here, high throughput RNA-Seq and bioinformatics analyses of sequence data were applied to the characterization of the whole sets of transcripts expressed by infective larvae of AS and AP, as well as of their pharyngeal tissues, in a bid to identify transcripts potentially involved in tissue invasion and host-pathogen interplay. RESULTS: Approximately 34,000,000 single-end reads were generated from cDNA libraries for each species. Transcripts identified in AS and AP encoded 19,403 and 10,424 putative peptides, respectively, and were classified based on homology searches, protein motifs, gene ontology and biological pathway mapping. Differential gene expression analysis yielded 226 and 339 transcripts upregulated in the pharyngeal regions of AS and AP, respectively, compared with their corresponding whole-larvae datasets. These included proteolytic enzymes, molecules encoding anesthetics, inhibitors of primary hemostasis and virulence factors, anticoagulants and immunomodulatory peptides. CONCLUSIONS: This work provides the scientific community with a list of key transcripts expressed by AS and AP pharyngeal tissues and corresponding annotation information which represents a ready-to-use resource for future functional studies of biological pathways specifically involved in host-parasite interplay. PMID- 29321073 TI - Insufficient sensitivity of joint aspiration during the two-stage exchange of the hip with spacers. AB - BACKGROUND: Evaluation of infection persistence during the two-stage exchange of the hip is challenging. Joint aspiration before reconstruction is supposed to rule out infection persistence. Sensitivity and specificity of synovial fluid culture and synovial leucocyte count for detecting infection persistence during the two-stage exchange of the hip were evaluated. METHODS: Ninety-two aspirations before planned joint reconstruction during the two-stage exchange with spacers of the hip were retrospectively analyzed. RESULTS: The sensitivity and specificity of synovial fluid culture was 4.6 and 94.3%. The sensitivity and specificity of synovial leucocyte count at a cut-off value of 2000 cells/MUl was 25.0 and 96.9%. C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) values were significantly higher before prosthesis removal and reconstruction or spacer exchange (p = 0.00; p = 0.013 and p = 0.039; p = 0.002) in the infection persistence group. Receiver operating characteristic area under the curve values before prosthesis removal and reconstruction or spacer exchange for ESR were lower (0.516 and 0.635) than for CRP (0.720 and 0.671). CONCLUSIONS: Synovial fluid culture and leucocyte count cannot rule out infection persistence during the two-stage exchange of the hip. PMID- 29321076 TI - Being influential or being misleading? Citation bias in psychiatric research and practice. PMID- 29321074 TI - Patient and case characteristics associated with 'no paramedic treatment' for low acuity cases referred for emergency ambulance dispatch following a secondary telephone triage: a retrospective cohort study. AB - BACKGROUND: Predicting case types that are unlikely to be treated by paramedics can aid in managing demand for emergency ambulances by identifying cases suitable for alternative management pathways. The aim of this study was to identify the patient characteristics and triage outcomes associated with 'no paramedic treatment' for cases referred for emergency ambulance dispatch following secondary telephone triage. METHODS: A retrospective cohort analysis was conducted of cases referred for emergency ambulance dispatch following secondary telephone triage between September 2009 and June 2012. Multivariable logistic regression modelling was used to identify explanatory variables associated with 'no paramedic treatment'. RESULTS: There were 19,041 cases eligible for inclusion in this study over almost three years, of which 8510 (44.7%) were not treated after being sent an emergency ambulance following secondary triage. Age, time of day, pain, triage guideline group, and comorbidities were associated with 'no paramedic treatment'. In particular, cases 0-4 years of age or those with psychiatric conditions were significantly less likely to be treated by paramedics, and increasing pain resulted in higher rates of paramedic treatment. CONCLUSIONS: This study highlights that case characteristics can be used to identify particular case types that may benefit from care pathways other than emergency ambulance dispatch. This process is also useful to identify gaps in the alternative care pathways currently available. These findings offer the opportunity to optimise secondary telephone triage services to support their strategic purpose of minimising unnecessary emergency ambulance demand and to match the right case with the right care pathway. PMID- 29321077 TI - Social anxiety disorder: looking back and moving forward. AB - Fifty years have passed since social anxiety disorder (SAD) was first differentiated from other phobias. In the years since research has largely aligned with the zeitgeist of categorical classificatory frameworks, and has spanned identifying causes, maintenance factors and innovative interventions. Despite significant advances in the field, the capacity to conceptualise SAD as an independent entity is limited given the heterogeneity and dimensionality of diagnostic criteria, high rates of comorbidity, and non-specificity of aetiological mechanisms, maintaining factors and approaches to treatment. The Research Domain Criteria (RDoC) initiative was developed in an effort to overcome the inherent limitations posed by descriptive diagnostic systems - particularly in terms of reliability and validity - and in doing so seeks to facilitate research into underlying pathophysiological and behavioural mechanisms that cut across traditional diagnostic boundaries. The RDoC framework is furnished with a 'matrix', which in essence corresponds to a set of research principles that attempt to reconcile neuroscience and psychopathology. This review outlines a rationale for integrating SAD research with the RDoC approach, and offers examples of how future studies may wish to frame hypotheses and design experiments as the field moves towards classifying dimensions of psychopathology through a mechanistic understanding of underlying neurobiological and behavioural processes. PMID- 29321075 TI - A phase I, open-label trial on the safety and immunogenicity of the adjuvanted tuberculosis subunit vaccine H1/IC31(r) in people living in a TB-endemic area. AB - BACKGROUND: H1/IC31(r) is a tuberculosis (TB) subunit vaccine candidate consisting of the fusion protein of Ag85B and ESAT-6 (H1) formulated with the IC31(r) adjuvant. Previous trials have reported on the H1/IC31(r) vaccine in M. tuberculosis (Mtb)-naive, BCG-vaccinated and previously Mtb-infected individuals. In this trial, conducted between December 2008 and April 2010, the safety and immunogenicity of H1/IC31(r) was assessed in participants living in Ethiopia - a highly TB-endemic area. METHODS: Healthy male participants aged 18-25 years were recruited into four groups. Participants in group 1 (N = 12) and group 2 (N = 12) were Tuberculin Skin Test (TST) negative and QuantiFERON-TB Gold in-tube test (QFT) negative (Mtb-naive groups), participants in group 3 (N = 3) were TST positive and QFT negative (BCG group), and participants in group 4 (N = 12) were both TST and QFT positive (Mtb-infected group). H1 vaccine alone (group 1) or H1 formulated with the adjuvant IC31(r) (groups 2, 3 and 4) was administered intramuscularly on day 0 and day 56. Safety and immunogenicity parameters were evaluated for up to 32 weeks after day 0. RESULTS: The H1/IC31(r)vaccine was safe and generally well tolerated. There was little difference among the four groups, with a tendency towards a higher incidence of adverse events in Mtb-infected compared to Mtb-naive participants. Two serious adverse events were reported in the Mtb-infected group where a relationship to the vaccine could not be excluded. In both cases the participants recovered without sequelae within 72 h. Immunogenicity assays, evaluated in the 29 participants who received both vaccinations, showed a stronger response to TB antigens in the Mtb-naive group vaccinated with the adjuvant. CONCLUSION: The trial confirmed the need for an adjuvant for the vaccine to be immunogenic and highlighted the importance of early phase testing of a novel TB vaccine candidate in TB-endemic areas. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT01049282. Retrospectively registered on 14 January 2010. PMID- 29321078 TI - Duration of Contact Precautions for Acute-Care Settings. PMID- 29321079 TI - The enactment stage of end-of-life decision-making for children. AB - OBJECTIVES: Typically pediatric end-of-life decision-making studies have examined the decision-making process, factors, and doctors' and parents' roles. Less attention has focussed on what happens after an end-of-life decision is made; that is, decision enactment and its outcome. This study explored the views and experiences of bereaved parents in end-of-life decision-making for their child. Findings reported relate to parents' experiences of acting on their decision. It is argued that this is one significant stage of the decision-making process. METHODS: A qualitative methodology was used. Semi-structured interviews were conducted with bereaved parents, who had discussed end-of-life decisions for their child who had a life-limiting condition and who had died. Data were thematically analysed. RESULTS: Twenty-five bereaved parents participated. Findings indicate that, despite differences in context, including the child's condition and age, end-of-life decision-making did not end when an end-of-life decision was made. Enacting the decision was the next stage in a process. Time intervals between stages and enactment pathways varied, but the enactment was always distinguishable as a separate stage. Decision enactment involved making further decisions - parents needed to discern the appropriate time to implement their decision to withdraw or withhold life-sustaining medical treatment. Unexpected events, including other people's actions, impacted on parents enacting their decision in the way they had planned. Several parents had to re-implement decisions when their child recovered from serious health issues without medical intervention. Significance of results A novel, critical finding was that parents experienced end-of-life decision-making as a sequence of interconnected stages, the final stage being enactment. The enactment stage involved further decision making. End-of-life decision-making is better understood as a process rather than a discrete once-off event. The enactment stage has particular emotional and practical implications for parents. Greater understanding of this stage can improve clinician's support for parents as they care for their child. PMID- 29321080 TI - Prenatal vitamin D status and offspring's growth, adiposity and metabolic health: a systematic review and meta-analysis. AB - In this systematic review and meta-analysis of observational studies, we aimed to estimate the associations between prenatal vitamin D status and offspring growth, adiposity and metabolic health. We searched the literature in human studies on prenatal vitamin D status and offspring growth in PubMed, up to July 2017. Studies were selected according to their methodological quality and outcomes of interest (anthropometry, fat mass and diabetes in offspring). The inverse variance method was used to calculate the pooled mean difference (MD) with 95 % CI for continuous outcomes, and the Mantel-Haenszel method was used to calculate the pooled OR with 95 % CI for dichotomous outcomes. In all, thirty observational studies involving 35 032 mother-offspring pairs were included. Vitamin D status was evaluated by circulating 25-hydroxyvitamin D (25(OH)D) level. Low vitamin D status was based on each study's cut-off for low 25(OH)D levels. Low prenatal vitamin D levels were associated with lower birth weight (g) (MD -100.69; 95 % CI -162.25, -39.13), increased risk of small-for-gestational-age (OR 1.55; 95 % CI 1.16, 2.07) and an elevated weight (g) in infant at the age of 9 months (g) (MD 119.75; 95 % CI 32.97, 206.52). No associations were observed between prenatal vitamin D status and other growth parameters at birth, age 1 year, 4-6 years or 9 years, nor with diabetes type 1. Prenatal vitamin D may play a role in infant adiposity and accelerated postnatal growth. The effects of prenatal vitamin D on long-term metabolic health outcomes in children warrant future studies. PMID- 29321081 TI - The clock: Not a question of time. PMID- 29321082 TI - Long Noncoding RNA ATB Promotes Proliferation, Migration, and Invasion in Bladder Cancer by Suppressing MicroRNA-126. AB - This study aimed to explore the biological functions of long noncoding RNA activated by transforming growth factor-beta (lncRNA-ATB) in bladder cancer cells. For the expressions of lncRNA-ATB, miR-126, and KRAS, T24 cells were transfected with their specific vectors/shRNA or mimic/inhibitor. Then cell viability, migration, invasion, and apoptosis as well as the protein levels of apoptosis-related factors and PI3K/AKT and mTOR signal pathways were measured. The relationships of lncRNA-ATB and miR-126 or miR-126 and KRAS were analyzed by Dual-Luciferase Reporter assay. Functional experiments showed that lncRNA-ATB overexpression significantly promoted cell viability, migration, and invasion in T24 cells. lncRNA-ATB was a molecular sponge of miR-126 and exerted tumor promoting effects by downregulation of miR-126. Moreover, KRAS was a direct target of miR-126 and was negatively regulated by miR-126. Finally, overexpression of KRAS increased cell viability, migration, and invasion, as well as activated PI3K/AKT and mTOR signaling pathways in T24 cells. The results revealed that lncRNA-ATB was an oncogene, which promoted cell proliferation, migration, and invasion by regulating miR-126 in bladder cancer. These findings may provide a potential prognostic biomarker and a therapeutic target for bladder cancer. PMID- 29321083 TI - MicroRNA-338-3p Suppresses Proliferation of Human Liver Cancer Cells by Targeting SphK2. AB - Recent studies have revealed abnormal expression of miRNAs in various tumors. Although microRNA-338-3p (miR-338-3p) plays an important role in many types of tumors, its influence on liver cancer (LC) is unknown. In this study, we found that expression of miR-338-3p was decreased in LC cells and tissues. Colony formation and cell proliferation were suppressed by enhanced expression of miR 338-3p in LC cells. Moreover, miR-338-3p targeted sphingosine kinase 2 (SphK2). Silencing of SphK2 had an identical influence as overexpression of miR-338-3p in LC cells. Overexpression of SphK2 without the 3'-untranslated region remarkably enhanced the growth suppression triggered by miR-338-3p in LC cells. These findings indicate that miR-338-3p influences the development of LC by targeting SphK2, suggesting that miR-338-3p can be targeted as an innovative therapeutic strategy for LC. PMID- 29321084 TI - miR-143 Inhibits Cell Proliferation of Gastric Cancer Cells Through Targeting GATA6. AB - Recent studies have suggested that the dysregulation of microRNAs (miRNAs) plays a critical role in the progression of human cancers, including gastric cancer (GC). miR-143 had been reported to function as a tumor suppressor in GC. However, the exact molecular mechanism of how miR-143 participates in GC progression remains to be determined. In this present study, we revealed that the expression of miR-143 was significantly downregulated in human GC tissues and cell lines compared with normal tissues and a normal gastric epithelium cell line. In addition, upregulation of the expression of miR-143 in a GC cell line inhibited cell proliferation and induced cell cycle arrested in the G0/G1 phase. Furthermore, GATA6 was identified as a direct target of miR-143 in GC using the luciferase reporter assay. Upregulation of miR-143 inhibited the expression of GATA6 in GC cell lines. Moreover, the overexpression of GATA6 could attenuate the effect of miR-143 on cell proliferation in the GC cell lines. Collectively, these data indicated that miR-143 plays a tumor suppressor role partly through regulating the expression of GATA6 in GC. Therefore, targeting miR-143 may be a novel therapeutic method for GC. PMID- 29321085 TI - MicroRNA-519d-3p Inhibits Proliferation and Promotes Apoptosis by Targeting HIF 2alpha in Cervical Cancer Under Hypoxic Conditions. AB - HIF-2alpha knockdown inhibits proliferation, arrests the cell cycle, and promotes apoptosis and autophagy under hypoxic conditions in cervical cancer. However, the upstream regulatory mechanism of HIF-2alpha expression is unclear. MicroRNAs (miRNAs) degrade target mRNAs by binding to the 3'-untranslated region of mRNAs. In this study, we investigated the role of miRNAs in the regulation of HIF-2alpha expression in cervical cancer under hypoxic conditions. miRNAs regulating HIF 2alpha expression were predicted using TargetScan and miRanda and were determined in cervical cancer under hypoxic conditions by qRT-PCR. Additionally, the targeted regulation of HIF-2alpha by miR-519d-3p was evaluated by Western blot and luciferase reporter assays. Effects of miR-519d-3p and HIF-2alpha on cell proliferation, cell cycle, and apoptosis were analyzed by CCK-8 and flow cytometry assays, respectively. miR-106a-5p, miR-17-5p, miR-519d-3p, miR-526b-3p, and miR-20b-5p are potentially regulatory miRNAs that bound to the HIF-2alpha 3' untranslated region as per TargetScan and miRanda predictions. Expression of the five miRNAs was inhibited in HeLa cells under hypoxic conditions compared to normoxic conditions, and the expression of miR-519d-3p was lower than that of other miRNAs. Luciferase reporter assays showed that HIF-2alpha was a target of miR-519d-3p. Additionally, miR-519d-3p overexpression inhibited cell proliferation, arrested the cell cycle transition from the G1 stage to the S stage, and promoted cell apoptosis under hypoxic conditions in cervical cancer. HIF-2alpha overexpression partially reversed the effect of miR-519d-3p. In conclusion, miR-519d-3p overexpression suppressed proliferation, inhibited the cell cycle, and promoted apoptosis of HeLa cells by targeting HIF-2alpha under hypoxic conditions. PMID- 29321086 TI - MicroRNA-511 inhibits cellular proliferation and invasion in colorectal cancer by directly targeting hepatoma-derived growth factor. AB - Dysregulated microRNAs (miRNAs) expression is involved in the occurrence and development of colorectal cancer (CRC) through the regulation of various important physiological events. Hence, miRNAs may be used as effective targets for CRC treatment; however, this hypothesis warrants further investigation. MiRNA 511 (miR511) plays vital roles in the progression of different tumour types. However, the expression, exact role and the mechanisms underlying the regulation of colorectal carcinogenesis and progression by miR-511 remain poorly understood. This study presents that miR-511 expression was decreased in CRC tissues and cell lines as compared with that in adjacent non-neoplastic tissues and normal human colon epithelium cell lines, respectively. The enforced expression of miR-511 in CRC cells significantly reduced cell proliferation and invasion. Hepatoma-derived growth factor (HDGF) was mechanically validated as a direct target of miR-511 in CRC. Furthermore, miR-511 was negatively associated with HDGF in CRC tissues. The restored HDGF expression can abrogate the tumour suppressive roles of miR-511 in CRC cells. More importantly, miR-511 overexpression suppressed the PI3K/AKT signalling pathway in CRC. These results suggest that miR-511 can potentially serve as a therapeutic target for the therapy of patients with CRC. PMID- 29321087 TI - CD47 promotes human glioblastoma invasion through activation of PI3K/Akt pathway. AB - Excessive expression of Cluster of Differentiation 47 (CD47) is common in various malignancies. The aim of this study was to investigate whether CD47 promotes human glioblastoma invasion and its underlying mechanism of CD47 in promoting glioblastoma invasion. In this study we found that CD47 expression was stronger in glioblastoma patients and cells in comparison with normal controls. CD47 downregulation modulated by siRNA suppressed invasion in vitro. However, excessive CD47 expression modulated by transfection exerted opposite influence. In the meantime, excessive CD47 or knockdown CD47 expression had no effect on proliferation. Moreover, CD47 expression was related to AKT phosphorylation on cellular molecular level. AKT suppression with specific inhibitor impaired invasion of cells in which excessively expressed CD47, indicating that stimulation of PI3K/Akt pathway served as the downstream regulator of invasion triggered by CD47. These results suggest that CD47 might serve as a predictor of worse development as well as metastasis and brought about an innovative approach to treat glioblastoma. PMID- 29321088 TI - Upregulation of Long Noncoding RNA TUG1 Promotes Bladder Cancer Cell Proliferation, Migration, and Invasion by Inhibiting miR-29c. AB - Bladder cancer (BC) is one of the leading causes of cancer-related deaths in the world. Long noncoding RNA (lncRNA) taurine-upregulated gene 1 (TUG1) plays an important role in the development and progression of numerous cancers, including BC. However, the exact role of TUG1 in modulating BC progression is still poorly known. In this study, we found that TUG1 was upregulated and microRNA-29c (miR 29c) was downregulated in BC tissues and cell lines. Overexpression of TUG1 promoted the cell proliferation of T24 and EJ cells, whereas TUG1 knockdown had the opposite effect. Upregulation of TUG1 obviously facilitated the migration and invasion of T24 and EJ cells. In contrast, TUG1 silencing repressed the migration and invasion of T24 and EJ cells. Furthermore, TUG1 knockdown markedly increased the expression of miR-29c in vitro. On the contrary, overexpression of TUG1 remarkably decreased the expression of miR-29c. Transfection with plasmids containing mutant TUG1 has no effect on the expression of miR-29c. There were direct interactions between miR-29c and the binding sites of TUG1. In addition, the inhibitory effects of small interfering RNA specific for TUG1 on BC cell proliferation, migration, and invasion were reversed by downregulation of miR 29c. Collectively, our study strongly demonstrates that TUG1 promotes BC cell proliferation, migration, and invasion by inhibiting miR-29c, suggesting that lncRNA TUG1 may be a promising target for BC gene therapy. PMID- 29321089 TI - Silencing of E3 ubiquitin ligase RNF8 enhances ionizing radiation sensitivity of 5 medulloblastoma cells by promoting the deubiquitination of PCNA. AB - DNA damage response induced by ionizing radiation (IR) is an important event that involved in the sensitivity and efficiency of radiotherapy in human medulloblastoma. RNF8 is a E3 ubiquitin ligase and has key roles in the process of DNA damage and repair. Our study aimed to evaluate the effect of RNF8 in the DNA damage repair induced by IR exposure in medulloblastoma cells. We found that the levels of RNF8 were significantly up-regulated by gamma-ray irradiation in a dose-dependent manner in medulloblastoma cells, and colocalized with gamma-H2AX, a sensitive marker of DNA double strand break induced by gamma-ray radiation. RNF8 knockdown was observed to enhanced the sensitivity of IR in medulloblastoma cells, as evaluated by reduced cell survival. And the apoptosis as well as cell cycle arrest of medulloblastoma cells were dramatically increased by RNF8 suppression after IR treatment. Furthermore, RNF8 inhibition didn't affect the protein levels of BRCA1, a crucial protein involved in IR-induced DNA damage repair, but significantly decreased the recruitment of BRCA1 and increased the level of gamma-H2AX at DNA damage sites compared to the control. And a significant increase of OTM was observed in medulloblastoma cells treated by RNF8 shRNA after exposure to IR, indicating the effect of RNF8 on DNA damage and repair. Additionally, PCNA, a major target for Ub modification during DNA damage response, was found to be mono ubiquitinated by E3 ligase RNF8 and might contribute to the low radiosensitivity in medulloblastoma cells. Altogether, our findings may provide RNF8 as a novel target for the improvement of radiotherapy in medulloblastoma. PMID- 29321090 TI - Problems and resolutions in dealing with waste disposable paper cups. AB - In recent years, the problem caused by waste disposable paper cups (WDPCs) has became a topic of great concern to scientists, and commercial companies have also begun to take an interest in developing processes for tackling the issue. In this review, the inherent problems and social barriers during the recycling of WDPCs are described. This review presents the major conclusions of previously published works focused on the utilisation of WDPCs for material and energy purposes. The commercial utilisation of WDPCs is also described. Some suggestions for better recycling of WDPCs are given in the final part of this work. PMID- 29321091 TI - The Downregulation of miR-200c Promotes Lactate Dehydrogenase A Expression and Non-Small Cell Lung Cancer Progression. AB - This study was aimed to investigate the function and mechanism of microRNA-200c (miR-200c) in the progression of non-small cell lung cancer (NSCLC). A total of 76 patients diagnosed as having NSCLC were enrolled in this study. The expression level of miR-200c in NSCLC tissues and cell lines was investigated using the quantitative real-time polymerase chain reaction (RT-qPCR) method. We found that the expression of miR-200c was significantly reduced in NSCLC tissues and cell lines compared with normal lung tissues and the human bronchial epithelial cell line. Overexpression of miR-200c using the miR-200c mimic significantly suppressed cell proliferation and migration of NSCLC cell lines. The results of the luciferase reporter assay identified lactate dehydrogenase A (LDHA) as a direct target of miR-200c. The expression of LDHA was shown to be suppressed in NSCLC cell lines with miR-200c mimic transfection. Furthermore, the transfection of small interfering RNA (siRNA) targeting LDHA suppressed the proliferation and migration of NSCLC cell lines. In summary, our results presented in this study suggested that miR-200c was able to inhibit the proliferation and migration of NSCLC cells by downregulating LDHA. Therefore, miR-200c may be considered as a potential candidate for the treatment of NSCLC. PMID- 29321092 TI - MicroRNA-212 Targets Mitogen-Activated Protein Kinase 1 to Inhibit Proliferation and Invasion of Prostate Cancer Cells. AB - Prostate cancer (PCa) is the second most commonly diagnosed malignancy and the fifth leading cause of cancer-related deaths in males worldwide. MicroRNAs (miRNAs) may serve as important regulators in PCa occurrence and development. Therefore, understanding the expression and functions of PCa-related miRNAs may be beneficial for the identification of novel therapeutic methods for patients with PCa. In this study, miRNA-212 (miR-212) was evidently downregulated in PCa tissues and several PCa cell lines. Functional assays showed that the resumption of miR-212 expression attenuated cell proliferation and invasion and increased the apoptosis of PCa. In addition, mitogen-activated protein kinase 1 (MAPK1), a well-known oncogene, was identified as a novel target of miR-212 in PCa, as confirmed by bioinformatics, luciferase reporter assay, qRT-PCR, and Western blot analysis. Furthermore, MAPK1 expression was upregulated in PCa tissues and inversely correlated with miR-212 expression. Rescue experiments also demonstrated that restored MAPK1 expression reversed the tumor-suppressing effects of miR-212 on PCa cell proliferation, invasion, and apoptosis. In conclusion, miR-212 may exert tumor-suppressing roles in PCa by regulating MAPK1 and could be a novel therapeutic target for treatment of patients with this malignancy. PMID- 29321094 TI - Expression and Function of Long Noncoding RNA NONHSAT129183 in Papillary Thyroid Cancer. AB - The aberrant expression of long noncoding RNAs (lncRNAs) is implicated in cancer development and progression. This study was aimed to investigate the expression and clinical significance of lncRNA NONHSAT129183 in papillary thyroid cancer (PTC), and to explore its roles in PTC cell proliferation, migration, and invasion. Our results demonstrate that lncRNA NONHSAT129183 is upregulated in human PTC tissues when compared with that in adjacent noncancerous thyroid tissue. Moreover, its expression is correlated with tumor size, lymph node metastasis, and TNM stage in PTC patients. lncRNA NONHSAT129183 silencing also significantly suppressed cell proliferation, migration, and invasion in PTC cell lines. In conclusion, our results suggest that lncRNA NONHSAT129183 plays a critical role in the regulation of PTC cell proliferation, migration, and invasion, providing new insights into PTC pathogenesis. PMID- 29321096 TI - Chemsex as edgework: towards a sociological understanding. AB - Sexual sessions between men, organised through mobile technologies and combined with stimulants intended to extend and intensify the session have been reified into the phenomena of 'chemsex'. Understanding chemsex requires multiple levels of analysis and interpretation. This paper considers chemsex through the lens of edgework, a sociological category for voluntary risk taking identified in 1990 by Stephen Lyng. Edgework activities involve a clear and present danger to the self, intense emotions and sensations and an opportunity to exercise specialist skills. Using published research and other cultural products, this paper demonstrates that chemsex fully exhibits all the defining features of edgework. Chemsex is then positioned as an activity that epitomises the (gay) citizen as consumer in a technocapitalist age of pharmacopornographic consumption. PMID- 29321093 TI - A Retrospective Comparison of the Clinical Efficacy of Gefitinib, Erlotinib, and Afatinib in Japanese Patients With Non-Small Cell Lung Cancer. AB - Tyrosine kinase inhibitors (TKIs) are very effective against non-small cell lung cancer (NSCLC) caused by epidermal growth factor receptor (EGFR) mutation. Before the approval of osimertinib in March 2016, there were only three available EGFR TKIs (gefitinib, erlotinib, and afatinib) for the therapy of NSCLC in Japan. Osimertinib can be indicated only against T790M+ lung cancer as a second-line therapy. However, whether gefitinib, erlotinib, or afatinib is most appropriate as a first-line therapy is still a controversial issue. The aim of this study was to compare the effectiveness of gefitinib, erlotinib, and afatinib. We retrospectively reviewed the records of 310 patients with the diagnosis of EGFR mutation-associated NSCLC including 147 patients treated with EGFR TKIs. Time to treatment failure and overall survival were evaluated. There were no significant differences in time to treatment failure (gefitinib: 9.2 months; erlotinib: 9.8 months; afatinib: 13.1 months) and overall survival (gefitinib: 27.3 months; erlotinib: 29.3 months; afatinib data not available) among NSCLC patients treated with the three different EGFR TKIs. Subgroup analysis showed that smoking status has a significant influence on both time to treatment failure and overall survival. In conclusion, this study showed comparable clinical efficacy of gefitinib, erlotinib, and afatinib in Japanese patients with NSCLC. PMID- 29321095 TI - Sexual content in video games: an analysis of the Entertainment Software Rating Board classification from 1994 to 2013. AB - : Background Video games are widely used by children and adolescents and have become a significant source of exposure to sexual content. Despite evidence of the important role of media in the development of sexual attitudes and behaviours, little attention has been paid to monitor sexual content in video games. METHODS: Data was obtained about sexual content and rating for 23722 video games from 1994 to 2013 from the Entertainment Software Rating Board database; release dates and information on the top 100 selling video games was also obtained. A yearly prevalence of sexual content according to rating categories was calculated. Trends and comparisons were estimated using Joinpoint regression. RESULTS: Sexual content was present in 13% of the video games. Games rated 'Mature' had the highest prevalence of sexual content (34.5%) followed by 'Teen' (30.7%) and 'E10+' (21.3%). Over time, sexual content decreased in the 'Everyone' category, 'E10+' maintained a low prevalence and 'Teen' and 'Mature' showed a marked increase. Both top and non-top video games showed constant increases, with top selling video games having 10.1% more sexual content across the period of study. CONCLUSION: Over the last 20 years, the prevalence of sexual content has increased in video games with a 'Teen' or 'Mature' rating. Further studies are needed to quantify the potential association between sexual content in video games and sexual behaviour in children and adolescents. PMID- 29321097 TI - Towards a supportive policy and commissioning environment for chemsex in England. AB - The use of drugs in sexual settings among gay men (colloquially referred to as 'chemsex') was first observed in services supporting gay men in London in the late 2000s. A decade on and it now features as a policy issue in the UK Government's latest Drug Strategy, with several actions to support a health system response. However, reaching this point has been a slow and challenging process and much remains to be done to facilitate an environment in which evidence-based chemsex interventions can be delivered. With a view to informing the development of policies and services in other contexts, this case report examines the initiatives that have driven a response to chemsex and contributed to policy development in England and highlights remaining challenges to effective service provision. PMID- 29321100 TI - The changing face of critical care: Task force on tropical diseases. PMID- 29321098 TI - Spondylodiscitis: Diagnosis and Treatment Options. AB - BACKGROUND: A recent population-based study from Denmark showed that the incidence of spondylodiscitis rose from 2.2 to 5.8 per 100 000 persons per year over the period 1995-2008; the age-standardized incidence in Germany has been estimated at 30 per 250 000 per year on the basis of data from the Federal Statistical Office (2015). The early diagnosis and treatment of this condition are essential to give the patient the best chance of a good outcome, but these are often delayed because it tends to present with nonspecific manifestations, and fever is often absent. METHODS: This article is based on a systematic search of Medline and the Cochrane Library for the period January 2009 to March 2017. Of the 788 articles identified, 30 publications were considered. RESULTS: The goals of treatment for spondylodiscitis are to eliminate infection, restore functionality of the spine, and relieve pain. Magnetic resonance imaging (MRI) remains the gold standard for the radiological demonstration of this condition, with 92% sensitivity and 96% specificity. It also enables visualization of the spatial extent of the infection and of abscess formation (if present). The most common bacterial cause of spondylodiscitis in Europe is Staphylococcus aureus, but tuberculous spondylodiscitis is the most common type worldwide. Antibiotic therapy is a pillar of treatment for spondylodiscitis and should be a part of the treatment in all cases. Neurologic deficits, sepsis, an intraspinal empyema, the failure of conservative treatment, and spinal instability are all indications for surgical treatment. CONCLUSION: The quality of life of patients who have been appropriately treated for spondylodiscitis has been found to be highly satisfactory in general, although back pain often persists. The risk of recurrence increases in the presence of accompanying illnesses such as diabetes mellitus, renal failure, or undrained epidural abscesses. PMID- 29321101 TI - Bioremediation and detoxification of industrial wastes by earthworms: Vermicompost as powerful crop nutrient in sustainable agriculture. AB - Vermicompost is the final product of the vermicomposting process involving the collective action of earthworms and microbes. During this process, the waste is converted into useful manure by reducing the harmful effects of waste. Toxicity of industrial wastes is evaluated by plant bioassays viz. Allium cepa and Vicia faba test. These bioassays are sensitive and cost-effective for the monitoring of environmental contamination. The valorization potential of earthworms and their ability to detoxify heavy metals in industrial wastes is because of their strong metabolic system and involvement of earthworm gut microbes and chloragocyte cells. Most of the studies reported that the vermicompost produced from organic wastes contains higher amounts of humic substances, which plays a major role in growth of plants. The present article discusses the detoxification of industrial wastes by earthworms and the role of final vermicompost in plant growth and development. PMID- 29321099 TI - Non-Specific Low Back Pain. AB - BACKGROUND: For many years, low back pain has been both the leading cause of days lost from work and the leading indication for medical rehabilitation. The goal of the German Disease Management Guideline (NDMG) on nonspecific low back pain is to improve the treatment of patients with this condition. METHODS: The current update of the NDMG on non-specific low back pain is based on articles retrieved by a systematic search of the literature for systematic reviews. Its recommendations for diagnosis and treatment were developed by a collaborative effort of 29 scientific medical societies and organizations and approved in a formal consensus process. RESULTS: If the history and physical examination do not arouse any suspicion of a dangerous underlying cause, no further diagnostic evaluation is indicated for the time being. Passive, reactive measures should be taken only in combination with activating measures, or not at all. When drugs are used for symptomatic treatment, patients should be treated with the most suitable drug in the lowest possible dose and for as short a time as possible. CONCLUSION: A physician should be in charge of the overall care process. The patient should be kept well informed over the entire course of his or her illness and should be encouraged to adopt a healthful lifestyle, including regular physical exercise. PMID- 29321102 TI - A longitudinal study into the reciprocal effects of identities and smoking behaviour: Findings from the ITC Netherlands Survey. AB - OBJECTIVE: Although it has been found that identity constructs related to smoking are associated with changes in smoking behaviour, the direction of causal associations is as yet unclear. This study aims to clarify the nature and direction of these associations. METHODS: In this longitudinal study we examined the reciprocal relations between identity constructs (i.e., smoker self-identity, quitter self-identity and smoker group-identity), intention to quit and smoking and quitting behaviour among a sample of 1036 smokers and ex-smokers, using cross lagged structural equation modelling. Moreover, we tested whether these relations differed by socio-economic status (SES). RESULTS: Identity and smoking behaviour were reciprocally related in that in intention to quit and smoking behaviour consistently predicted identity change, and identity predicted (changes in) intentions to quit and smoking behaviour. Behaviour appears more important for identity change than identity for behaviour change. Furthermore, quitter self identity appears more important than smoker self- and group-identity. Relationships did not differ significantly between SES-groups. The findings were replicated using a cross-validation sample. CONCLUSION: Results imply that changing smoking behaviour may be a vehicle to change smoking-related identity. Moreover, strengthening identification with quitting is more crucial for quit success than decreasing smoker identities. The finding that behaviour may be more important for identity than vice versa, if replicated, may call for additions to identity theories. PMID- 29321103 TI - Does GRIN2B gene influence obsessive-compulsive disorder risk, symptom dimensions and treatment response? PMID- 29321104 TI - Neurectomy for anterior cutaneous nerve entrapment syndrome in children. AB - INTRODUCTION: Anterior cutaneous nerve entrapment syndrome (ACNES) is an underrecognized etiology of chronic abdominal pain that causes great morbidity to those affected. We sought to determine the outcome of neurectomy for ACNES in children. METHODS: Demographic and clinical data on children who underwent neurectomy for ACNES by a single surgeon from 10/2011 to 01/2017 were reviewed. RESULTS: Twenty-six patients underwent neurectomy for ACNES. Five were male and average age was 15years (10-21). Median (IQR) preoperative pain duration was 15 (8-29) months and 19 reported their pain was 10/10 (6-10). Thirteen patients were taking antidepressants, 12 Gabapentin, and 4 narcotics. Most had been hospitalized at least once secondary to the pain. All 26 had undergone diagnostic studies including: nuclear medicine scan, fluoroscopy, computed tomography, magnetic resonance imaging, sonography, endoscopy and surgery. Once the diagnosis was suspected, all underwent at least one ultrasound-directed nerve block, which provided relief lasting from 6h to 14days. Patients then underwent outpatient surgery with division of the involved nerve(s). There were no perioperative complications. Most patients reported incisional discomfort for 3-14days afterward, and immediate resolution of the nerve pain without cutaneous numbness. Postoperatively, 15 patients (58%) were pain free long-term; pain recurred to a lesser severity in 8 (31%) and recurred to the same extent in 3 (11%), with average time to recurrence of 6.7months. Of those whose pain recurred to a lesser extent, all achieved long term relief, 4 improved with time, 1 through repeat neurectomy, 2 through medical treatment for underlying psychiatric disorders and 1 through treatment for newly diagnosed inflammatory bowel disease. Of those children with pain recurring to the same extent, all underwent repeat neurectomy, none of whom achieved pain relief. CONCLUSION: ACNES should be considered in children with chronic abdominal pain. Neurectomy is safe and relieves pain in around 88% of selected children. Further investigation is necessary to optimize patient selection. LEVEL OF EVIDENCE: IV. PMID- 29321105 TI - The Use of Near Infrared Spectroscopy to Assess Infant Pain. PMID- 29321106 TI - Segway(r) Personal Transporter-Related Injuries: A Systematic Literature Review and Implications for Acute and Emergency Care. AB - BACKGROUND: The Segway(r) Personal TransporterTM (SPT) is used widely as a means of transport for city sightseeing tours, law enforcement, and professionals working in large facilities and factories. METHODS: We conducted a systematic review of the literature to assess SPT-related injuries. Following the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines, we queried PubMed from 1990 to 2017. The search terms Segway, personal transporter, and injury were used. Only English-language studies were included. Data were extracted from each article, specifically the sample size, study setting, and design, as well as the prevalence of specific injuries. RESULTS: A total of six articles were included that included data on 135 patients. Sample size per study varied from 1 to 41 patients. Studies occurred in both the emergency department and inpatient settings, including medical-surgical wards, and intensive care units. The most commonly reported injuries were orthopedic cases (n = 45), maxillofacial cases (n = 13), neurologic cases (n = 8), and thoracic cases (n = 10). CONCLUSIONS: The SPT is an innovative transportation method; however, its use is associated with a wide range of injuries. Many of these injuries require hospital admission and surgical intervention, incurring significant morbidity and high costs. PMID- 29321107 TI - Can I Send This Patient with Stroke Home? Strategies Managing Transient Ischemic Attack and Minor Stroke in the Emergency Department. AB - BACKGROUND: While transient ischemic attack and minor stroke (TIAMS) are common conditions evaluated in the emergency department (ED), there is controversy regarding the most effective and efficient strategies for managing them in the ED. Some patients are discharged after evaluation in the ED and cared for in the outpatient setting, while others remain in an observation unit without being admitted or discharged, and others experience prolonged and potentially costly inpatient admissions. OBJECTIVE OF THE REVIEW: The goal of this clinical review was to summarize and present recommendations regarding the disposition of TIAMS patients in the ED (e.g., admission vs. discharge). DISCUSSION: An estimated 250,000 to 300,000 TIA events occur each year in the United States, with an estimated near-term risk of subsequent stroke ranging from 3.5% to 10% at 2 days, rising to 17% by 90 days. While popular and easy to use, reliance solely on risk stratification tools, such as the ABCD2, should not be used to determine whether TIAMS patients can be discharged safely. Additional vascular imaging and advanced brain imaging may improve prediction of short-term neurologic risk. We also review various disposition strategies (e.g., inpatient vs. outpatient/ED observation units) with regard to their association with neurologic outcomes, such as 30-day or 90-day stroke recurrence or new stroke, in addition to other outcomes, such as hospital length of stay and health care costs. CONCLUSIONS: Discharge from the ED for rapid outpatient follow-up may be a safe and effective strategy for some forms of minor stroke without disabling deficit and TIA patients after careful evaluation and initial ED workup. Future research on such strategies has the potential to improve neurologic and overall patient outcomes and reduce hospital costs and ED length of stay. PMID- 29321109 TI - How artificial intelligence could transform emergency department operations. PMID- 29321110 TI - Freestanding emergency department visits and disasters: The case of Hurricane Harvey. PMID- 29321108 TI - Surgical stabilization for first-time shoulder dislocators: a multicenter analysis. AB - BACKGROUND: Anterior shoulder dislocations in young patients are associated with high rates of recurrent instability. Although some surgeons advocate for surgical stabilization after a single dislocation event in this population, there is sparse research evaluating surgical treatment for first-time dislocators. METHODS: Patients undergoing surgical stabilization for anterior shoulder instability were prospectively enrolled at multiple institutions from 2015-2017 and stratified by number of dislocations before surgery. Demographic data, preoperative patient-reported outcomes, imaging findings, surgical findings, and procedures performed were compared between groups. Analysis of variance, chi2, and multivariate logistic regression were used for statistical analysis. RESULTS: The study included 172 patients (mean age, 25.3 years; 79.1% male patients) for analysis (58 patients with 1 dislocation, 69 with 2-5 dislocations, 45 with >5 dislocations). There were no intergroup differences in demographic characteristics, preoperative patient-reported outcomes, or physical examination findings. Preoperative imaging revealed increased glenoid bone loss in patients with multiple dislocation events (P = .043). Intraoperatively, recurrent dislocators were more likely to have bony Bankart lesions (odds ratio [OR], 3.26; P = .024) and biceps pathology (OR, 6.27; P = .013). First-time dislocators more frequently underwent arthroscopic Bankart repair and/or capsular plication (OR, 2.22; P = .016), while recurrent dislocators were more likely to undergo open Bristow-Latarjet procedures (OR, 2.80; P = .049) and surgical treatment for biceps pathology (OR, 5.03; P = .032). CONCLUSIONS: First-time shoulder dislocators who undergo stabilization are more likely to undergo an arthroscopic procedure and less likely to have bone loss or biceps pathology compared with recurrent dislocators. Future studies are needed to ascertain long-term outcomes of surgical stabilization based on preoperative dislocation events. PMID- 29321111 TI - A systematic review of the pain scales in adults: Which to use? AB - OBJECTIVE: The study analysed the Visual Analogue Scale (VAS), the Verbal Rating Scale (VRS) and the Numerical Rating Scale (NRS) to determine: 1. Were the compliance and usability different among scales? 2. Were any of the scales superior over the other(s) for clinical use? METHODS: A systematic review of currently published studies was performed following standard guidelines. Online database searches were performed for clinical trials published before November 2017, on the comparison of the pain scores in adults and preferences of the specific patient groups. A literature search via electronic databases was carried out for the last fifteen years on English Language papers. The search terms initially included pain rating scales, pain measurement, pain intensity, VAS, VRS, and NRS. Papers were examined for methodological soundness before being included. Data were independently extracted by two blinded reviewers. Studies were also assessed for bias using the Cochrane criteria. RESULTS: The initial data search yielded 872 potentially relevant studies; of these, 853 were excluded for some reason. The main reason for exclusion (33.7%) was that irrelevance to comparison of pain scales and scores, followed by pediatric studies (32.1%). Finally, 19 underwent full-text review, and were analysed for the study purposes. Studies were of moderate (n=12, 63%) to low (n=7, 37%) quality. CONCLUSIONS: All three scales are valid, reliable and appropriate for use in clinical practice, although the VAS is more difficulties than the others. For general purposes the NRS has good sensitivity and generates data that can be analysed for audit purposes. PMID- 29321112 TI - The evaluation and management of urolithiasis in the ED: A review of the literature. AB - BACKGROUND: Urolithiasis is a common condition in the U.S. Patients frequently present to the emergency department (ED) for care, including analgesia and treatments to facilitate stone passage. OBJECTIVE: With the new evidence concerning the evaluation and treatment of urolithiasis, this review summarizes current literature regarding the ED management of urolithiasis. DISCUSSION: Urolithiasis occurs primarily through supersaturation of urine and commonly presents with flank pain, hematuria, and nausea/vomiting. History, examination, and assessment with several laboratory tests are cornerstones of evaluation. Urinalysis is not diagnostic, but it may be used in association with other assessments. Risk assessment tools and advanced imaging can assist with diagnosis. Computed tomography (CT) is often considered the gold standard. Newer low-dose CT imaging may reduce radiation. Recent studies support ultrasound as an alternate diagnostic modality, especially in pediatric and pregnant patients. Nonsteroidal anti-inflammatory drugs remain first-line therapy, with opioids or intravenous lidocaine reserved for refractory pain. Tamsulosin can increase passage in larger stones but has not demonstrated benefit in smaller stones. Nifedipine and intravenous fluids are not recommended to facilitate passage. Surgical intervention is based upon stone size, duration, and modifying factors. Patients who are discharged should be advised on dietary changes. CONCLUSION: Urolithiasis is a common disease increasing in prevalence with the potential for significant morbidity. Focused evaluation with history, examination, and testing is important in diagnosis and management. Understanding the clinical features, risk assessment tools, imaging options, and treatment options can assist emergency physicians in the management of urolithiasis. PMID- 29321113 TI - Top-cited publications on point-of-care ultrasound: The evolution of research trends. AB - STUDY OBJECTIVES: Point-of-care ultrasound (POCUS) has been a rapidly growing and broadly used modality in recent decades. The purpose of this study was to determine how POCUS is incorporated into clinical medicine by analyzing trends of use in the published literature. METHODS: POCUS-related publications were retrieved from the Web of Science (WoS) database. The search results were ranked according to the number of times an article was cited during three time frames and average annual number of citations. Of the top 100 most cited publications in the four rankings, information regarding the publication journal, publication year, first author's nationality, field of POCUS application, and number of times the article was cited was recorded for trend analysis. RESULTS: A total of 7860 POCUS-related publications were retrieved, and publications related to POCUS increased from 8 in 1990 to 754 in 2016. The top 148 cited publications from the four ranking groups were included in this study. Trauma was the leading application field in which POCUS was studied prior to 2001. After 2004, thorax, cardiovascular, and procedure-guidance were the leading fields in POCUS research. >79% (118/148) of the top-cited publications were conducted by authors in the United States, Italy, and France. The majority of publications were published in critical care medicine and emergency medicine journals. CONCLUSIONS: In recent years, publications relating to POCUS have increased. POCUS-related research has mainly been performed in thorax, cardiovascular, and procedure-guidance ultrasonography fields, replacing trauma as the major field in which POCUS was previously studied. PMID- 29321114 TI - Nebulized ketamine to avoid mechanical ventilation in a pediatric patient with severe asthma exacerbation. AB - Asthma is a major cause of morbidity and mortality despite advances in outpatient treatment. Sometimes, children fail to respond to standard treatment and can potentially require mechanical ventilation. We describe a case of a 26-month-old girl with a severe asthma exacerbation successfully managed by ketamine administration via nebulization route that permitted to avoid mechanical ventilation. Nebulized ketamine might be a reasonable option to avoid mechanical ventilation in children who fail to respond to standard treatment of severe asthma exacerbation. PMID- 29321115 TI - Trauma patients presenting with a King laryngeal tubeTM in place can be safely intubated in the emergency department. PMID- 29321116 TI - All eye complaints are not created equal: The value of hand-held retina camera in the Emergency Department. PMID- 29321117 TI - Emergency department resuscitation of pediatric trauma patients in Iraq and Afghanistan. AB - BACKGROUND: Military hospital healthcare providers treated children during the recent conflicts in Afghanistan and Iraq. Compared to adults, pediatric patients present unique challenges during trauma resuscitations and have notably been discussed in few research reports. We seek to describe ED interventions performed on pediatric trauma patients in Iraq and Afghanistan. METHODS: We queried the Department of Defense Trauma Registry (DODTR) for all pediatric patients in Iraq and Afghanistan from January 2007 to January 2016. Subjects were grouped based on Centers for Disease Control age categories. We used descriptive statistics. RESULTS: During this period, there were 3388 pediatric encounters that arrived at the ED with signs of life or on-going interventions. Most subjects were male (77.2%), located in Afghanistan (67.9%), injured by explosive (43.2%), and admitted to an intensive care unit (57.8%). Most of those arriving to the ED alive or with on-going interventions survived to hospital discharge (91.6%). The most frequently encountered age group was 5-9years (33.3%) followed by 10-14years (31.5%). The most common interventions were vascular access (86.6%), fluid administration (85.0%), and external warming (44.6%). Intubation was the most frequent airway intervention (18.2%). Packed red blood cells were the most frequently administered blood product (33.8% of subjects). CONCLUSIONS: Pediatric subjects accounted for a notable portion of care delivered in theater emergency departments during the study period. Vascular access and fluid administration were the most frequently performed interventions. Pediatric-specific training is needed as a part of deployment medicine operations. PMID- 29321118 TI - A comparison of carotid doppler ultrasonography and capnography in evaluating the efficacy of CPR. AB - INTRODUCTION AND PURPOSE: The end-tidal carbon dioxide (ETCO2) measurement is accepted as the gold standard method for assessing cardiopulmonary resuscitation (CPR) efficacy. In recent studies, the use of Carotid Doppler Ultrasonography has become widespread in showing CPR efficacy. In the present study, the carotid blood flow measurement was compared with ETCO2 measurement and an evaluation was made of whether this method could be used as an alternative method to capnography in the assessment of CPR efficacy. MATERIAL AND METHOD: This study was conducted on patients who presented at the Emergency Department (ED) with non-traumatic arrest or began to suffer from arrest during emergency service follow-up. The main carotid artery peak systolic velocity (PSV), end diastolic velocity (EDV) and time-dependent mean flow velocity (MNV), and ETCO2 values were measured and recorded after the 100th chest pressure of the CPR cycle and the results were statistically analyzed. RESULTS: The mean age of the patients was 54.5+/ 12.3years and 65.6% of the patients were male. The mean values of patients measured from the carotid artery during the CPR were PSV 67.1+/-17.3, EDV 16.3+/ 4.5, MNV 25.5+/-8.1 and ETCO2 22.2+/-8.1. A significant difference was found between in-hospital and out-of-hospital arrests in terms of patient outcome (return of spontaneous circulation (ROSC) and death) (p<0.05). The mean ETCO2 values of those who died were found to be lower than those of the ROSC group (p<0.05). Although there was a positive and low-level of correlation between the ETCO2 values and PSV values, and a positive and very low-level of correlation between the EDV and MNV values of all patients, these correlations were not statistically significant. (p>0.05). CONCLUSION: A low correlation was found between the PSV and ETCO2 values. With effective CPR, the results close to carotid blood flow in normal healthy individuals were obtained. However, the study showed that carotid blood flow measurement results during CPR were not as valuable as ETCO2 in demonstrating CPR efficacy. PMID- 29321119 TI - Treatment and resources for patients with non-occupational HIV exposure presenting to the emergency department. PMID- 29321120 TI - Evaluating vancomycin and piperacillin-tazobactam in ED patients with severe sepsis and septic shock. AB - STUDY OBJECTIVE: To determine the frequency and cause of inadequate initial antibiotic therapy with vancomycin and piperacillin-tazobactam in patients with severe sepsis and septic shock in the emergency department (ED), characterize its impact on patient outcomes, and identify patients who would benefit from an alternative initial empiric regimen. METHODS: Retrospective cohort study conducted between 2012 and 2015 in which 342 patients with culture-positive severe sepsis or septic shock who received initial vancomycin and piperacillin tazobactam were reviewed to determine appropriateness of antimicrobial therapy, risk factors for inappropriate use, and outcome data. Univariate and multivariate regression analyses were determined to identify associations between inappropriate antibiotic use and outcomes and to identify risk factors that may predict which patients would benefit from an alternative initial regimen. RESULTS: Vancomycin and piperacillin-tazobactam were inappropriate for 24% of patients with severe sepsis or septic shock, largely due to non-susceptible infections, particularly ESBL organisms and Clostridium difficile. Risk factors included multiple sources of infection (OR 4.383), admission from a skilled nursing facility (OR 3.763), a history of chronic obstructive pulmonary disease (COPD) (OR 3.175), intra-abdominal infection (OR 2.890), and immunosuppression (OR 1.930). We did not find a mortality impact. CONCLUSION: Vancomycin and piperacillin-tazobactam were an inappropriate antibiotic combination for approximately 24% of patients with either severe sepsis or septic shock in the ED. Patients with known COPD, residence at a skilled nursing facility, a history concerning for Clostridium difficile, and immunosuppression would benefit from an alternative regimen. Future prospective studies are needed to validate these findings. PMID- 29321121 TI - Seizure Prediction Is Possible-Now Let's Make It Practical. PMID- 29321122 TI - Technology-Assisted Behavioral Intervention to Extend Sleep Duration: Development and Design of the Sleep Bunny Mobile App. AB - BACKGROUND: Despite the high prevalence of short sleep duration (29.2% of adults sleep <6 hours on weekdays), there are no existing theory-based behavioral interventions to extend sleep duration. The popularity of wearable sleep trackers provides an opportunity to engage users in interventions. OBJECTIVE: The objective of this study was to outline the theoretical foundation and iterative process of designing the "Sleep Bunny," a technology-assisted sleep extension intervention including a mobile phone app, wearable sleep tracker, and brief telephone coaching. We conducted a two-step process in the development of this intervention, which was as follows: (1) user testing of the app and (2) a field trial that was completed by 2 participants with short sleep duration and a cardiovascular disease risk factor linked to short sleep duration (body mass index [BMI] >25). METHODS: All participants had habitual sleep duration <6.5 hours verified by 7 days of actigraphy. A total of 6 individuals completed initial user testing in the development phase, and 2 participants completed field testing. Participants in the user testing and field testing responded to open ended surveys about the design and utility of the app. Participants in the field testing completed the Epworth Sleepiness Scale and also wore an actigraph for a 1 week baseline period and during the 4-week intervention period. RESULTS: The feedback suggests that users enjoyed the wearable sleep tracker and found the app visually pleasing, but they suggested improvements to the notification and reminder features of the app. The 2 participants who completed the field test demonstrated significant improvements in sleep duration and daytime sleepiness. CONCLUSIONS: Further testing is needed to determine effects of this intervention in populations at risk for the mental and physical consequences of sleep loss. PMID- 29321123 TI - Comparative Analysis of Women With Notable Subjective Health Indicators Compared With Participants in the Australian Longitudinal Study on Women's Health: Cross Sectional Survey. AB - BACKGROUND: At least six communities with unusually good health and longevity have been identified, but their lifestyles aren't adopted widely. Informal evidence suggests that women associated with Universal Medicine (UM), a complementary medicine health care organization in Eastern Australia and the United Kingdom with normal lifestyles, also have several unusual health indicators. OBJECTIVE: Our objective was to determine how UM participants compared with women in the Australian population at large on a variety of health indicators. METHODS: In an Internet survey conducted July to September 2015, a total of 449 female UM participants from 15 countries responded to 43 health indicator questions taken from the Australian Longitudinal Study on Women's Health (ALSWH). RESULTS: Survey responses revealed large positive differences in mental and physical health when compared with the ALSWH respondents, except for abnormal Pap test and low iron history. Differences and corresponding effect size estimates (Cohen d; >=0.8 is a high difference, >=0.5 a medium and >=0.2 a small one with P<.001 except where indicated) included body mass index (BMI; 1.11), stress level (0.20, P=.006), depression (0.44), summary physical (0.31) and mental health (0.37), general mental health (0.39), emotional (0.15, P=.009) and social functioning (0.22), vitality (0.58), and general health (0.49), as well as lower incidences of diabetes, hypertension, and thrombosis (P<.001 each). Neither education levels nor country of residence had predictive value. Neither education levels nor country of residence had predictive value. Age did not predict BMI. CONCLUSIONS: The women's responses notably claim substantially lower levels of illness and disease than in the general Australian population. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12617000972325; https://www.anzctr. org.au/Trial/Registration/TrialReview.aspx?id=373120&isReview=true (Archived by WebCite at http://www.webcitation.org/ 6wEDDn45O). PMID- 29321124 TI - Hearing Tests Based on Biologically Calibrated Mobile Devices: Comparison With Pure-Tone Audiometry. AB - BACKGROUND: Hearing screening tests based on pure-tone audiometry may be conducted on mobile devices, provided that the devices are specially calibrated for the purpose. Calibration consists of determining the reference sound level and can be performed in relation to the hearing threshold of normal-hearing persons. In the case of devices provided by the manufacturer, together with bundled headphones, the reference sound level can be calculated once for all devices of the same model. OBJECTIVE: This study aimed to compare the hearing threshold measured by a mobile device that was calibrated using a model-specific, biologically determined reference sound level with the hearing threshold obtained in pure-tone audiometry. METHODS: Trial participants were recruited offline using face-to-face prompting from among Otolaryngology Clinic patients, who own Android based mobile devices with bundled headphones. The hearing threshold was obtained on a mobile device by means of an open access app, Hearing Test, with incorporated model-specific reference sound levels. These reference sound levels were previously determined in uncontrolled conditions in relation to the hearing threshold of normal-hearing persons. An audiologist-assisted self-measurement was conducted by the participants in a sound booth, and it involved determining the lowest audible sound generated by the device within the frequency range of 250 Hz to 8 kHz. The results were compared with pure-tone audiometry. RESULTS: A total of 70 subjects, 34 men and 36 women, aged 18-71 years (mean 36, standard deviation [SD] 11) participated in the trial. The hearing threshold obtained on mobile devices was significantly different from the one determined by pure-tone audiometry with a mean difference of 2.6 dB (95% CI 2.0-3.1) and SD of 8.3 dB (95% CI 7.9-8.7). The number of differences not greater than 10 dB reached 89% (95% CI 88-91), whereas the mean absolute difference was obtained at 6.5 dB (95% CI 6.2-6.9). Sensitivity and specificity for a mobile-based screening method were calculated at 98% (95% CI 93-100.0) and 79% (95% CI 71-87), respectively. CONCLUSIONS: The method of hearing self-test carried out on mobile devices with bundled headphones demonstrates high compatibility with pure-tone audiometry, which confirms its potential application in hearing monitoring, screening tests, or epidemiological examinations on a large scale. PMID- 29321125 TI - Efficacy of a Web-Based Safety Decision Aid for Women Experiencing Intimate Partner Violence: Randomized Controlled Trial. AB - BACKGROUND: Intimate partner violence (IPV) is a human rights violation and leading health burden for women. Safety planning is a hallmark of specialist family violence intervention, yet only a small proportion of women access formal services. A Web-based safety decision aid may reach a wide audience of women experiencing IPV and offer the opportunity to prioritize and plan for safety for themselves and their families. OBJECTIVE: The aim of this study was to test the efficacy of a Web-based safety decision aid (isafe) for women experiencing IPV. METHODS: We conducted a fully automated Web-based two-arm parallel randomized controlled trial (RCT) in a general population of New Zealand women who had experienced IPV in the past 6 months. Computer-generated randomization was based on a minimization scheme with stratification by severity of violence and children. Women were randomly assigned to the password-protected intervention website (safety priority setting, danger assessment, and tailored action plan components) or control website (standard, nonindividualized information). Primary endpoints were self-reported mental health (Center for Epidemiologic Studies Depression Scale-Revised, CESD-R) and IPV exposure (Severity of Violence Against Women Scale, SVAWS) at 12-month follow-up. Analyses were by intention to treat. RESULTS: Women were recruited from September 2012 to September 2014. Participants were aged between 16 and 60 years, 27% (111/412) self-identified as Maori (indigenous New Zealand), and 51% (210/412) reported at baseline that they were unsure of their future plans for their partner relationship. Among the 412 women recruited, retention at 12 months was 87%. The adjusted estimated intervention effect for SVAWS was -12.44 (95% CI -23.35 to -1.54) for Maori and 0.76 (95% CI 5.57 to 7.09) for non-Maori. The adjusted intervention effect for CESD-R was 7.75 (95% CI -15.57 to 0.07) for Maori and 1.36 (-3.16 to 5.88) for non-Maori. No study-related adverse events were reported. CONCLUSIONS: The interactive, individualized Web-based isafe decision aid was effective in reducing IPV exposure limited to indigenous Maori women. Discovery of a treatment effect in a population group that experiences significant health disparities is a welcome, important finding. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry (ANZCTR): ACTRN12612000708853; https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?ACTRN=1261200070885 (Archived by Webcite at http://www.webcitation/61MGuVXdK). PMID- 29321126 TI - Toward mHealth Brief Contact Interventions in Suicide Prevention: Case Series From the Suicide Intervention Assisted by Messages (SIAM) Randomized Controlled Trial. AB - BACKGROUND: Research indicates that maintaining contact either via letter or postcard with at-risk adults following discharge from care services after a suicide attempt (SA) can reduce reattempt risk. Pilot studies have demonstrated that interventions using mobile health (mHealth) technologies are feasible in a suicide prevention setting. OBJECTIVE: The aim of this study was to report three cases of patients recruited in the Suicide Intervention Assisted by Messages (SIAM) study to describe how a mobile intervention may influence follow-up. METHODS: SIAM is a 2-year, multicenter randomized controlled trial conducted by the Brest University Hospital, France. Participants in the intervention group receive SIAM text messages 48 hours after discharge, then at day 8 and day 15, and months 1, 2, 3, 4, 5, and 6. The study includes participants aged 18 years or older, who have attended a participating hospital for an SA, and have been discharged from the emergency department (ED) or a psychiatric unit (PU) for a stay of less than 7 days. Eligible participants are randomized between the SIAM intervention messages and a control group. In this study, we present three cases from the ongoing SIAM study that demonstrate the capability of a mobile-based brief contact intervention for triggering patient-initiated contact with a crisis support team at various time points throughout the mobile-based follow-up period. RESULTS: Out of the 244 patients recruited in the SIAM randomized controlled trial, three cases were selected to illustrate the impact of mHealth on suicide risk management. Participants initiated contact with the emergency crisis support service after receiving text messages up to 6 months following discharge from the hospital. Contact was initiated immediately following receipt of a text message or up to 6 days following a message. CONCLUSIONS: This text message-based brief contact intervention has demonstrated the potential to reconnect suicidal individuals with crisis support services while they are experiencing suicidal ideation as well as in a period after receiving messages. As follow-up phone calls over an extended period of time may not be feasible, this intervention has the potential to offer simple technological support for individuals following discharge from the ED. TRIAL REGISTRATION: ClinicalTrials.gov NCT02106949; https://clinicaltrials.gov/ct2/show/NCT02106949 (Archived by WebCite at http://www.webcitation.org/6wMtAFL49). PMID- 29321128 TI - Measurement of Lipoprotein-Associated Phospholipase A2 by Use of 3 Different Methods: Exploration of Discordance between ELISA and Activity Assays. AB - BACKGROUND: Lipoprotein-associated phospholipase A2 (Lp-PLA2), an enzyme associated with inflammation, is used as a biomarker for cardiovascular disease risk. Both the concentration and activity of Lp-PLA2 have been shown to be clinically relevant. However, there is a discordance between the serum concentration of Lp-PLA2 measured by the standard ELISA-based immunoassays and the activity of this enzyme, leading to substantial discordance in risk categorization depending on assay format. METHODS: We developed 2 LC-MS/MS-based assays to quantify serum Lp-PLA2 activity (multiple reaction monitoring detection of product) and concentration [stable isotope standards and capture by antipeptide antibody (SISCAPA) immunoaffinity], and we investigated their correlation to commercially offered colorimetric activity and immunometric concentrations assays. Associations between Lp-PLA2 and lipoproteins and the effect of selected detergents in liberating Lp-PLA2 were evaluated by use of immunoprecipitation and Western blot analyses. RESULTS: Serum Lp-PLA2 concentrations measured by quantitative SISCAPA-mass spectrometry were substantially higher than concentrations typically measured by immunoassay and showed an improved agreement with Lp-PLA2 activity. With detergents, liberation of Lp-PLA2 from lipoprotein complexes dramatically increased the amount of protein detected by immunoassay and improved the agreement with activity measurements. CONCLUSIONS: Quantitative analysis of Lp-PLA2 concentration and activity by LC-MS/MS assays provided key insight into resolving the well documented discordance between Lp-PLA2 concentration (determined by immunoassay) and activity. Quantitative detection of Lp-PLA2 by immunoassay appears to be strongly inhibited by interaction of Lp-PLA2 with lipoprotein. Together, the results illustrate the advantages of quantitative LC-MS/MS for measurement of Lp PLA2 concentration (by SISCAPA) and activity (by direct product detection). PMID- 29321127 TI - Effectiveness of a Technology-Based Supportive Educational Parenting Program on Parental Outcomes in Singapore: Protocol for a Randomized Controlled Trial. AB - BACKGROUND: Supportive educational programs during the perinatal period are scarce in Singapore. There is no continuity of care available in terms of support from community care nurses in Singapore. Parents are left on their own most of the time, which results in a stressful transition to parenthood. There is a need for easily accessible technology-based educational programs that can support parents during this crucial perinatal period. OBJECTIVE: The aim of this study was to describe the study protocol of a randomized controlled trial on a technology-based supportive educational parenting program. METHODS: A randomized controlled two-group pretest and repeated posttest experimental design will be used. The study will recruit 118 parents (59 couples) from the antenatal clinics of a tertiary public hospital in Singapore. Eligible parents will be randomly allocated to receive either the supportive educational parenting program or routine perinatal care from the hospital. Outcome measures include parenting self efficacy, parental bonding, postnatal depression, social support, parenting satisfaction, and cost evaluation. Data will be collected at the antenatal period, immediate postnatal period, and at 1 month and 3 months post childbirth. RESULTS: Recruitment of the study participants commenced in December 2016 and is still ongoing. Data collection is projected to finish within 12 months, by December 2017. CONCLUSIONS: This study will identify a potentially clinically useful, effective, and cost-effective supportive educational parenting program to improve parental self-efficacy and bonding in newborn care, which will then improve parents' social support-seeking behaviors, emotional well-being, and satisfaction with parenting. It is hoped that better supported and satisfied parents will consider having more children, which may in turn influence Singapore's ailing birth rate. TRIAL REGISTRATION: International Standard Randomized Controlled Trial Number (ISRCTN): 48536064; https://www.isrctn.com/ISRCTN48536064 (Archived by WebCite at http://www.webcitation.org/6wMuEysiO). PMID- 29321130 TI - Exercise Hemodynamic and Functional Capacity After Mitral Valve Replacement in Patients With Ischemic Mitral Regurgitation: A Comparison of Mechanical Versus Biological Prostheses. AB - BACKGROUND: In patients with ischemic mitral regurgitation requiring mitral valve replacement (MVR), the choice of the prosthesis type is crucial. The exercise hemodynamic and functional capacity performance in patients with contemporary prostheses have never been investigated. To compare exercise hemodynamic and functional capacity between biological (MVRb) and mechanical (MVRm) prostheses. METHODS AND RESULTS: We analyzed 86 consecutive patients with ischemic mitral regurgitation who underwent MVRb (n=41) or MVRm (n=45) and coronary artery bypass grafting. All patients underwent preoperative resting echocardiography and 6 minute walking test. At follow-up, exercise stress echocardiography was performed, and the 6-minute walking test was repeated. Resting and exercise indexed effective orifice areas of MVRm were larger when compared with MVRb (resting: 1.30+/-0.2 versus 1.19+/-0.3 cm2/m2; P=0.03; exercise: 1.57+/-0.2 versus 1.18+/-0.3 cm2/m2; P=0.0001). The MVRm had lower exercise systolic pulmonary arterial pressure at follow-up compared with MVRb (41+/-5 versus 59+/-7 mm Hg; P=0.0001). Six-minute walking test distance was improved in the MVRm (pre operative: 242+/-43, post-operative: 290+/-50 m; P=0.001), whereas it remained similar in the MVRb (pre-operative: 250+/-40, post-operative: 220+/-44 m; P=0.13). In multivariable analysis, type of prosthesis, exercise indexed effective orifice area, and systolic pulmonary arterial pressure were joint predictors of change in 6-minute walking test (ie, difference between baseline and follow-up). CONCLUSIONS: In patients with ischemic mitral regurgitation, bioprostheses are associated with worse hemodynamic performance and reduced functional capacity, when compared with MVRm. Randomized studies with longer follow-up including quality of life and survival data are required to confirm these results. PMID- 29321129 TI - Novel Reversible Model of Atherosclerosis and Regression Using Oligonucleotide Regulation of the LDL Receptor. AB - RATIONALE: Animal models have been used to explore factors that regulate atherosclerosis. More recently, they have been used to study the factors that promote loss of macrophages and reduction in lesion size after lowering of plasma cholesterol levels. However, current animal models of atherosclerosis regression require challenging surgeries, time-consuming breeding strategies, and methods that block liver lipoprotein secretion. OBJECTIVE: We sought to develop a more direct or time-effective method to create and then reverse hypercholesterolemia and atherosclerosis via transient knockdown of the hepatic LDLR (low-density lipoprotein receptor) followed by its rapid restoration. METHODS AND RESULTS: We used antisense oligonucleotides directed to LDLR mRNA to create hypercholesterolemia in wild-type C57BL/6 mice fed an atherogenic diet. This led to the development of lesions in the aortic root, aortic arch, and brachiocephalic artery. Use of a sense oligonucleotide replicating the targeted sequence region of the LDLR mRNA rapidly reduced circulating cholesterol levels because of recovery of hepatic LDLR expression. This led to a decrease in macrophages within the aortic root plaques and brachiocephalic artery, that is, regression of inflammatory cell content, after a period of 2 to 3 weeks. CONCLUSIONS: We have developed an inducible and reversible hepatic LDLR knockdown mouse model of atherosclerosis regression. Although cholesterol reduction decreased early en face lesions in the aortic arches, macrophage area was reduced in both early and late lesions within the aortic sinus after reversal of hypercholesterolemia. Our model circumvents many of the challenges associated with current mouse models of regression. The use of this technology will potentially expedite studies of atherosclerosis and regression without use of mice with genetic defects in lipid metabolism. PMID- 29321132 TI - Intersection of Pulmonary Hypertension and Right Ventricular Dysfunction in Patients on Left Ventricular Assist Device Support: Is There a Role for Pulmonary Vasodilators? AB - Left ventricular assist devices (LVADs) improve survival and quality of life in patients with advanced heart failure. Despite these benefits, combined post- and precapillary pulmonary hypertension can be particularly problematic in patients on LVAD support, often exacerbating right ventricular (RV) dysfunction. Both persistently elevated pulmonary vascular resistance and RV dysfunction are associated with adverse outcomes, including death after LVAD. These observations have led to significant interest in the use of pulmonary vasodilators to treat pulmonary hypertension and preserve RV function among LVAD-supported patients. Although pulmonary vasodilators are commonly used for the treatment of pulmonary hypertension and RV dysfunction in LVADs, the benefits of this practice remain unclear. The purpose of this review is to highlight the current challenges in managing pulmonary vascular disease and RV dysfunction in patients with heart failure on LVAD support. PMID- 29321131 TI - Efficacy of Ranolazine in Patients With Symptomatic Hypertrophic Cardiomyopathy: The RESTYLE-HCM Randomized, Double-Blind, Placebo-Controlled Study. AB - BACKGROUND: The late sodium current inhibitor ranolazine reverses the main electrophysiological and mechanical abnormalities of human hypertrophic cardiomyopathy (HCM) cardiomyocytes in vitro, suggesting potential clinical benefit. We aimed to assess the effect of ranolazine on functional capacity, symptomatic status, diastolic function, and arrhythmias in HCM. METHODS AND RESULTS: In this multicenter, double-blind, phase 2 study, 80 adult patients with nonobstructive HCM (age 53+/-14 years, 34 women) were randomly assigned to placebo (n=40) or ranolazine 1000 mg bid (n=40) for 5 months. The primary end point was change in peak VO2 compared with baseline using cardiopulmonary exercise test. Echocardiographic lateral and septal E/E' ratio, prohormone brain natriuretic peptide levels, 24-hour Holter arrhythmic profile, and quality of life were assessed. Ranolazine was safe and well tolerated. Overall, there was no significant difference in VO2 peak change at 5 months in the ranolazine versus placebo group (delta 0.15+/-3.96 versus -0.02+/-4.25 mL/kg per minute; P=0.832). Ranolazine treatment was associated with a reduction in 24-hour burden of premature ventricular complexes compared with placebo (>50% reduction versus baseline in 61% versus 31%, respectively; P=0.042). However, changes in prohormone brain natriuretic peptide levels did not differ in the ranolazine compared with the placebo group (geometric mean median [interquartile range], -3 pg/mL [-107, 142 pg/mL] versus 78 pg/mL [-71, 242 pg/mL]; P=0.251). Furthermore, E/E' ratio and quality of life scores showed no significant difference. CONCLUSIONS: In patients with nonobstructive HCM, ranolazine showed no overall effect on exercise performance, plasma prohormone brain natriuretic peptide levels, diastolic function, or quality of life. The drug showed an excellent safety profile and was associated with reduced premature ventricular complex burden. Late sodium current inhibition does not seem to improve functional capacity in HCM. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrialsregister.eu. Unique identifier: 2011-004507-20. PMID- 29321133 TI - Evolving Story of Clinical Trials in Hypertrophic Cardiomyopathy. PMID- 29321134 TI - Efficacy of a Chronic Care-Based Intervention on Secondary Stroke Prevention Among Vulnerable Stroke Survivors: A Randomized Controlled Trial. AB - BACKGROUND: Disparities of care among stroke survivors are well documented. Effective interventions to improve recurrent stroke preventative care in vulnerable populations are lacking. METHODS AND RESULTS: In a randomized controlled trial, we tested the efficacy of components of a chronic care model based intervention versus usual care among 404 subjects having an ischemic stroke or transient ischemic attack within 90 days of enrollment and receiving care within the Los Angeles public healthcare system. Subjects had baseline systolic blood pressure (SBP) >=120 mm Hg. The intervention included a nurse practitioner/physician assistant care manager, group clinics, self-management support, report cards, decision support, and ongoing care coordination. Outcomes were collected at 3, 8, and 12 months, analyzed as intention-to-treat, and used repeated-measures mixed-effects models. Change in SBP was the primary outcome. Low-density lipoprotein reduction, antithrombotic medication use, smoking cessation, and physical activity were secondary outcomes. Average age was 57 years; 18% were of black race; 69% were of Hispanic ethnicity. Mean baseline SBP was 150 mm Hg in both arms. SBP decreased to 17 mm Hg in the intervention arm and 14 mm Hg in the usual care arm; the between-arm difference was not significant ( 3.6 mm Hg; 95% confidence interval, -9.2 to 2.2). Among secondary outcomes, the only significant difference was that persons in the intervention arm were more likely to lower their low-density lipoprotein <100 md/dL (2.0 odds ratio; 95% confidence interval, 1.1-3.5). CONCLUSIONS: This intervention did not improve SBP control beyond that attained in usual care among vulnerable stroke survivors. A community-centered component could strengthen the intervention impact. CLINICAL TRIAL REGISTRATION: URL: https://clinicaltrials.gov. Unique identifier: NCT00861081. PMID- 29321136 TI - Importance and Challenges of Moving Stroke Prevention into the Community. PMID- 29321135 TI - Acute Myocardial Infarction Readmission Risk Prediction Models: A Systematic Review of Model Performance. AB - BACKGROUND: Hospitals are subject to federal financial penalties for excessive 30 day hospital readmissions for acute myocardial infarction (AMI). Prospectively identifying patients hospitalized with AMI at high risk for readmission could help prevent 30-day readmissions by enabling targeted interventions. However, the performance of AMI-specific readmission risk prediction models is unknown. METHODS AND RESULTS: We systematically searched the published literature through March 2017 for studies of risk prediction models for 30-day hospital readmission among adults with AMI. We identified 11 studies of 18 unique risk prediction models across diverse settings primarily in the United States, of which 16 models were specific to AMI. The median overall observed all-cause 30-day readmission rate across studies was 16.3% (range, 10.6%-21.0%). Six models were based on administrative data; 4 on electronic health record data; 3 on clinical hospital data; and 5 on cardiac registry data. Models included 7 to 37 predictors, of which demographics, comorbidities, and utilization metrics were the most frequently included domains. Most models, including the Centers for Medicare and Medicaid Services AMI administrative model, had modest discrimination (median C statistic, 0.65; range, 0.53-0.79). Of the 16 reported AMI-specific models, only 8 models were assessed in a validation cohort, limiting generalizability. Observed risk-stratified readmission rates ranged from 3.0% among the lowest-risk individuals to 43.0% among the highest-risk individuals, suggesting good risk stratification across all models. CONCLUSIONS: Current AMI-specific readmission risk prediction models have modest predictive ability and uncertain generalizability given methodological limitations. No existing models provide actionable information in real time to enable early identification and risk stratification of patients with AMI before hospital discharge, a functionality needed to optimize the potential effectiveness of readmission reduction interventions. PMID- 29321138 TI - Sensorimotor Functional and Structural Networks after Intracerebral Stem Cell Grafts in the Ischemic Mouse Brain. AB - Past investigations on stem cell-mediated recovery after stroke have limited their focus on the extent and morphological development of the ischemic lesion itself over time or on the integration capacity of the stem cell graft ex vivo However, an assessment of the long-term functional and structural improvement in vivo is essential to reliably quantify the regenerative capacity of cell implantation after stroke. We induced ischemic stroke in nude mice and implanted human neural stem cells (H9 derived) into the ipsilateral cortex in the acute phase. Functional and structural connectivity changes of the sensorimotor network were noninvasively monitored using magnetic resonance imaging for 3 months after stem cell implantation. A sharp decrease of the functional sensorimotor network extended even to the contralateral hemisphere, persisting for the whole 12 weeks of observation. In mice with stem cell implantation, functional networks were stabilized early on, pointing to a paracrine effect as an early supportive mechanism of the graft. This stabilization required the persistent vitality of the stem cells, monitored by bioluminescence imaging. Thus, we also observed deterioration of the early network stabilization upon vitality loss of the graft after a few weeks. Structural connectivity analysis showed fiber-density increases between the cortex and white matter regions occurring predominantly on the ischemic hemisphere. These fiber-density changes were nearly the same for both study groups. This motivated us to hypothesize that the stem cells can influence, via early paracrine effect, the functional networks, while observed structural changes are mainly stimulated by the ischemic event.SIGNIFICANCE STATEMENT In recent years, research on strokes has made a shift away from a focus on immediate ischemic effects and towards an emphasis on the long-range effects of the lesion on the whole brain. Outcome improvements in stem cell therapies also require the understanding of their influence on the whole-brain networks. Here, we have longitudinally and noninvasively monitored the structural and functional network alterations in the mouse model of focal cerebral ischemia. Structural changes of fiber-density increases are stimulated in the endogenous tissue without further modulation by the stem cells, while functional networks are stabilized by the stem cells via a paracrine effect. These results will help decipher the underlying networks of brain plasticity in response to cerebral lesions and offer clues to unravelling the mystery of how stem cells mediate regeneration. PMID- 29321137 TI - Novel function of ceramide for regulation of mitochondrial ATP release in astrocytes. AB - We reported that amyloid beta peptide (Abeta42) activated neutral SMase 2 (nSMase2), thereby increasing the concentration of the sphingolipid ceramide in astrocytes. Here, we show that Abeta42 induced mitochondrial fragmentation in wild-type astrocytes, but not in nSMase2-deficient cells or astrocytes treated with fumonisin B1 (FB1), an inhibitor of ceramide synthases. Unexpectedly, ceramide depletion was concurrent with rapid movements of mitochondria, indicating an unknown function of ceramide for mitochondria. Using immunocytochemistry and super-resolution microscopy, we detected ceramide enriched and mitochondria-associated membranes (CEMAMs) that were codistributed with microtubules. Interaction of ceramide with tubulin was confirmed by cross linking to N-[9-(3-pent-4-ynyl-3-H-diazirine-3-yl)-nonanoyl]-D-erythro sphingosine (pacFACer), a bifunctional ceramide analog, and binding of tubulin to ceramide-linked agarose beads. Ceramide-associated tubulin (CAT) translocated from the perinuclear region to peripheral CEMAMs and mitochondria, which was prevented in nSMase2-deficient or FB1-treated astrocytes. Proximity ligation and coimmunoprecipitation assays showed that ceramide depletion reduced association of tubulin with voltage-dependent anion channel 1 (VDAC1), an interaction known to block mitochondrial ADP/ATP transport. Ceramide-depleted astrocytes contained higher levels of ATP, suggesting that ceramide-induced CAT formation leads to VDAC1 closure, thereby reducing mitochondrial ATP release, and potentially motility and resistance to Abeta42 Our data also indicate that inhibiting ceramide generation may protect mitochondria in Alzheimer's disease. PMID- 29321140 TI - Cerebrospinal fluid Alzheimer biomarkers can be useful for discriminating dementia with Lewy bodies from Alzheimer's disease at the prodromal stage. AB - BACKGROUND: Differential diagnosis between dementia with Lewy bodies (DLB) and Alzheimer's disease (AD) is not straightforward, especially in the early stages of disease. We compared AD biomarkers (phospho-Tau181, total-Tau, Abeta42 and Abeta40) in cerebrospinal fluid (CSF) of patients with DLB and AD, focusing especially on the prodromal stage. METHODS: A total of 1221 CSF were collected in different memory centres (ePLM network) in France and analysed retrospectively. Samples were obtained from patients with prodromal DLB (pro-DLB; n=57), DLB dementia (DLB-d; n=154), prodromal AD (pro-AD; n=132) and AD dementia (n=783), and control subjects (CS; n=95). These centres use the same diagnostic procedure and criteria to evaluate the patients. RESULTS: In patients with pro-DLB, CSF Abeta42 levels appeared much less disrupted than in patients at the demented stage (DLB-d) (P<0.05 CS>pro-DLB; P<0.001 CS>DLB-d). On average, Abeta40 levels in patients with DLB (pro-DLB and DLB-d) were much below those in patients with pro-AD (P<0.001 DLB groups=50% improvement in lesion number/size or functionality impact from baseline. All patients achieved at least an absolute 10% increase in trough plasminogen activity above baseline. Clinical success was observed in all patients with clinically visible (conjunctiva and gingiva), nonvisible (nasopharynx, bronchus, colon, kidney, cervix, and vagina), and wound-healing manifestations of the disease. Therapeutic effects were rapid, as all but 2 lesions resolved or improved after 4 weeks of treatment. Human Glu plasminogen was well tolerated in both children and adults. This study provides critical first evidence of the clinical utility of ongoing replacement therapy with human Glu-plasminogen for the treatment of children and adults with congenital plasminogen deficiency. This trial was registered at www.clinicaltrials.gov as #NCT02690714. PMID- 29321156 TI - Improving adherence to healthy dietary patterns, genetic risk, and long term weight gain: gene-diet interaction analysis in two prospective cohort studies. AB - OBJECTIVE: To investigate whether improving adherence to healthy dietary patterns interacts with the genetic predisposition to obesity in relation to long term changes in body mass index and body weight. DESIGN: Prospective cohort study. SETTING: Health professionals in the United States. PARTICIPANTS: 8828 women from the Nurses' Health Study and 5218 men from the Health Professionals Follow-up Study. EXPOSURE: Genetic predisposition score was calculated on the basis of 77 variants associated with body mass index. Dietary patterns were assessed by the Alternate Healthy Eating Index 2010 (AHEI-2010), Dietary Approach to Stop Hypertension (DASH), and Alternate Mediterranean Diet (AMED). MAIN OUTCOME MEASURES: Five repeated measurements of four year changes in body mass index and body weight over follow-up (1986 to 2006). RESULTS: During a 20 year follow-up, genetic association with change in body mass index was significantly attenuated with increasing adherence to the AHEI-2010 in the Nurses' Health Study (P=0.001 for interaction) and Health Professionals Follow-up Study (P=0.005 for interaction). In the combined cohorts, four year changes in body mass index per 10 risk allele increment were 0.07 (SE 0.02) among participants with decreased AHEI-2010 score and -0.01 (0.02) among those with increased AHEI-2010 score, corresponding to 0.16 (0.05) kg versus -0.02 (0.05) kg weight change every four years (P<0.001 for interaction). Viewed differently, changes in body mass index per 1 SD increment of AHEI-2010 score were -0.12 (0.01), -0.14 (0.01), and -0.18 (0.01) (weight change: -0.35 (0.03), -0.36 (0.04), and -0.50 (0.04) kg) among participants with low, intermediate, and high genetic risk, respectively. Similar interaction was also found for DASH but not for AMED. CONCLUSIONS: These data indicate that improving adherence to healthy dietary patterns could attenuate the genetic association with weight gain. Moreover, the beneficial effect of improved diet quality on weight management was particularly pronounced in people at high genetic risk for obesity. PMID- 29321158 TI - Response to: 'Calprotectin is not independent from baseline erosion in predicting radiological progression in early rheumatoid arthritis' by Chevreau et al. PMID- 29321157 TI - Calprotectin is not independent from baseline erosion in predicting radiological progression in early rheumatoid arthritis. Comment on 'Calprotectin as a marker of inflammation in patients with early rheumatoid arthritis' by Jonsson et al. PMID- 29321160 TI - Avoid stigmatising language for people who use drugs, global commission urges. PMID- 29321159 TI - Impact of specialist palliative care on coping with Parkinson's disease: patients and carers. AB - OBJECTIVES: UK guidelines recommend palliative care access for people with Parkinson's disease; however, this remains sporadic, and it is unknown whether specialist palliative care helps patients and carers cope with this distressing condition. This study aimed to explore whether, and how, access to specialist palliative care services affected patients' and carers' coping with Parkinson's disease. METHODS: Semistructured interviews were conducted, audio-recorded and verbatim transcribed. Data were analysed using interpretative phenomenological analysis. Participants were patients with advanced idiopathic Parkinson's disease (n=3), and carers of people with Parkinson's disease (n=5, however, one diagnosis was reviewed) receiving care from an integrated specialist palliative care and Parkinson's disease service in North East England. RESULTS: Access to specialist palliative care helped participants cope with some aspects of advanced Parkinson's disease. Three superordinate themes were developed:' managing uncertainty', 'impacts on the self' and 'specialist palliative care maintaining a positive outlook'. CONCLUSIONS: Specialist palliative care helped patients and carers cope with advanced Parkinson's disease. Specialist palliative care is a complex intervention that acknowledges the complex and holistic nature of Parkinson's disease, enabling health in some domains despite continued presence of pathology. These exploratory findings support the utility of this approach for people living with Parkinson's disease. PMID- 29321161 TI - Simon Denegri: Piloting patient involvement. PMID- 29321162 TI - Risk of Suicide Attempt in Poststroke Patients: A Population-Based Cohort Study. AB - BACKGROUND: This nationwide population-based cohort study evaluated the risk of and risk factors for suicide attempt in poststroke patients in Taiwan. METHODS AND RESULTS: The poststroke and nonstroke cohorts consisted of 713 690 patients and 1 426 009 controls, respectively. Adults (aged >18 years) who received new stroke diagnoses according to the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM; codes 430-438) between 2000 and 2011 were included in the poststroke cohort. We calculated the adjusted hazard ratio for suicide attempt (ICD-9-CM codes E950-E959) after adjustment for age, sex, monthly income, urbanization level, occupation category, and various comorbidities. Kaplan-Meier analysis was used to measure the cumulative incidence of suicide attempt, and the Fine and Gray method was used as a competing event when estimating death subhazard ratios and 95% confidence intervals between groups. The cumulative incidence of suicide attempt was higher in the poststroke cohort, and the adjusted hazard ratio of suicide attempt was 2.20 (95% confidence interval, 2.04-2.37) compared with that of the controls. The leading risk factors for poststroke suicide attempt were earning low monthly income (<660 US dollars), living in less urbanized regions, doing manual labor, and having a stroke before age 50 years. The attempted suicide risk did not differ significantly between male and female patients in this study. CONCLUSIONS: These results convey crucial information to clinicians and governments for preventing suicide attempt in poststroke patients in Taiwan and other Asian countries. PMID- 29321163 TI - Antitumor Effects of Blocking Protein Neddylation in T315I-BCR-ABL Leukemia Cells and Leukemia Stem Cells. AB - Imatinib revolutionized the treatment of chronic myeloid leukemia (CML), but drug resistance and disease recurrence remain a challenge. In this study, we suggest a novel strategy based on blocking protein neddylation to address BCR-ABL point mutations and leukemia stem cells (LSC) that lie at the root of imatinib resistant recurrences. On the basis of the finding that the NEDD8-activating enzyme subunit NAE1 is overexpressed in CML cells, we hypothesized that the function of certain neddylation-dependent protein substrates might be targeted to therapeutic ends in imatinib-resistant CML cells and LSCs. In support of this hypothesis, we demonstrated that the NAE1 inhibitor MLN4924 induced G2-M-phase arrest and apoptosis in bulk CML cells with wild-type p53, regardless of their T315I mutation status in BCR-ABL. Moreover, MLN4924 inhibited the survival and self-renewal of primary human CML CD34+ cells and LSCs in CML-bearing mice via accumulation of p27kip1 in the nucleus. Notably, p27kip1 silencing attenuated the suppressive effect of MLN4924 on the maintenance of LSCs in CML-bearing mice. Taken together, our findings offer a preclinical proof of concept for targeting protein neddylation as a novel therapeutic strategy to override mutational and LSC-derived imatinib resistance in CML.Significance: These findings highlight a mediator of protein neddylation, a type of protein turnover mechanism, as a viable therapeutic target against imatinib-resistant forms of chronic myelogenous leukemia. Cancer Res; 78(6); 1522-36. (c)2018 AACR. PMID- 29321165 TI - Oxford vaccine study highlights pick and mix approach to preclinical research. PMID- 29321164 TI - KRAS Oncoprotein Expression Is Regulated by a Self-Governing eIF5A-PEAK1 Feed Forward Regulatory Loop. AB - There remains intense interest in tractable approaches to target or silence the KRAS oncoprotein as a rational therapeutic strategy to attack pancreatic ductal adenocarcinoma (PDAC) and other cancers that overexpress it. Here we provide evidence that accumulation of the KRAS oncoprotein is controlled by a self regulating feed-forward regulatory loop that utilizes a unique hypusinated isoform of the translation elongation factor eIF5A and the tyrosine kinase PEAK1. Oncogenic activation of KRAS increased eIF5A-PEAK1 translational signaling, which in turn facilitated increased KRAS protein synthesis. Mechanistic investigations show that this feed-forward positive regulatory pathway was controlled by oncogenic KRAS-driven metabolic demands, operated independently of canonical mTOR signaling, and did not involve new KRAS gene transcription. Perturbing eIF5A PEAK1 signaling, by genetic or pharmacologic strategies or by blocking glutamine synthesis, was sufficient to inhibit expression of KRAS, eIF5A, and PEAK1, to attenuate cancer cell growth and migration, and to block tumor formation in established preclinical mouse models of PDAC. Levels of KRAS, eIF5A, and PEAK1 protein increased during cancer progression with the highest levels of expression observed in metastatic cell populations. Combinatorial targeting of eIF5A hypusination and the RAS-ERK signaling pathway cooperated to attenuate KRAS expression and its downstream signaling along with cell growth in vitro and tumor formation in vivo Collectively, our findings highlight a new mechanistic strategy to attenuate KRAS expression as a therapeutic strategy to target PDAC and other human cancers driven by KRAS activation.Significance: These findings highlight a new mechanistic strategy to attenuate KRAS expression as a therapeutic strategy to target human cancers driven by KRAS activation. Cancer Res; 78(6); 1444-56. (c)2018 AACR. PMID- 29321166 TI - Fetal and early life antibiotics exposure and very early onset inflammatory bowel disease: a population-based study. AB - OBJECTIVE: Earlier studies on antibiotics exposure and development of IBD (Crohn's disease (CD) and ulcerative colitis (UC)) may have been biased by familial factors and gastroenteritis. We aimed to estimate the association between antibiotics during pregnancy or infantile age and very early onset (VEO) IBD. DESIGN: In this cohort study of 827 239 children born in Sweden between 2006 and 2013, we examined the link between exposure to systemic antibiotics and VEO IBD (diagnosis <6 years of age), using Cox proportional hazard regression models. Information on antibiotics and IBD was retrieved from the nationwide population based Swedish Prescribed Drug Register and the National Patient Register. We specifically examined potential confounding from parental IBD and gastroenteritis. RESULTS: Children exposed to antibiotics during pregnancy were at increased risk of IBD compared with general population controls (adjusted HR (aHR) 1.93; 95% CI 1.06 to 3.50). Corresponding aHRs were 2.48 (95% CI 1.01 to 6.08) for CD and 1.25 (95% CI 0.47 to 3.26) for UC, respectively. For antibiotics in infantile age, the aHR for IBD was 1.11 (95% CI 0.57 to 2.15); for CD 0.72 (95% CI 0.27 to 1.92) and 1.23 (95% CI 0.45 to 3.39) for UC. Excluding children with gastroenteritis 12 months prior to the first IBD diagnosis retained similar aHR for antibiotics during pregnancy and CD, while the association no longer remained significant for IBD. CONCLUSION: We found that exposure to antibiotics during pregnancy, but not in infantile age, is associated with an increased risk of VEO-IBD regardless of gastroenteritis. The risk increase for exposure in pregnancy may be due to changes in the microbiota. PMID- 29321167 TI - Construction of Designer Selectable Marker Deletions with a CRISPR-Cas9 Toolbox in Schizosaccharomyces pombe and New Design of Common Entry Vectors. AB - Vectors encoding selectable markers have been widely used in yeast to maintain or express exogenous DNA fragments. In the fission yeast Schizosaccharomyces pombe, several engineered markers have been reported and widely used, such as ura4+ and ScLEU2 from Saccharomyces cerevisiae, which complement ura4 and leu1 mutations, respectively. These two auxotrophic markers share no homology with the S. pombe genome; however, most others can recombine with the genome due to sequence homology shared between the genomic and plasmid-borne copies of the markers. Here, we describe a CRISPR-Cas9 toolbox that can be used to quickly introduce "designer" auxotrophic marker deletions into host strains, including leu1-Delta0, his3-Delta0, and lys9-Delta0 Together with ura4-D18, this brings the total number of available designer deletion auxotrophic markers to four. The toolbox consists of a Cas9-gRNA expression vector and a donor DNA plasmid pair for each designer deletion. Using this toolbox, a set of auxotrophic S. pombe strains was constructed. Further, we reorganized essential components in the commonly used pREP series of plasmids and assembled the corresponding auxotrophic marker gene onto these plasmids. This toolbox for producing designer deletions, together with the newly developed strains and plasmids, will benefit the whole yeast community. PMID- 29321168 TI - Tools Allowing Independent Visualization and Genetic Manipulation of Drosophila melanogaster Macrophages and Surrounding Tissues. AB - Drosophila melanogaster plasmatocytes, the phagocytic cells among hemocytes, are essential for immune responses, but also play key roles from early development to death through their interactions with other cell types. They regulate homeostasis and signaling during development, stem cell proliferation, metabolism, cancer, wound responses, and aging, displaying intriguing molecular and functional conservation with vertebrate macrophages. Given the relative ease of genetics in Drosophila compared to vertebrates, tools permitting visualization and genetic manipulation of plasmatocytes and surrounding tissues independently at all stages would greatly aid a fuller understanding of these processes, but are lacking. Here, we describe a comprehensive set of transgenic lines that allow this. These include extremely brightly fluorescing mCherry-based lines that allow GAL4 independent visualization of plasmatocyte nuclei, the cytoplasm, or the actin cytoskeleton from embryonic stage 8 through adulthood in both live and fixed samples even as heterozygotes, greatly facilitating screening. These lines allow live visualization and tracking of embryonic plasmatocytes, as well as larval plasmatocytes residing at the body wall or flowing with the surrounding hemolymph. With confocal imaging, interactions of plasmatocytes and inner tissues can be seen in live or fixed embryos, larvae, and adults. They permit efficient GAL4-independent Fluorescence-Activated Cell Sorting (FACS) analysis/sorting of plasmatocytes throughout life. To facilitate genetic studies of reciprocal signaling, we have also made a plasmatocyte-expressing QF2 line that, in combination with extant GAL4 drivers, allows independent genetic manipulation of both plasmatocytes and surrounding tissues, and GAL80 lines that block GAL4 drivers from affecting plasmatocytes, all of which function from the early embryo to the adult. PMID- 29321169 TI - The actin-MRTF-SRF transcriptional circuit controls tubulin acetylation via alpha TAT1 gene expression. AB - The role of formins in microtubules is not well understood. In this study, we have investigated the mechanism by which INF2, a formin mutated in degenerative renal and neurological hereditary disorders, controls microtubule acetylation. We found that silencing of INF2 in epithelial RPE-1 cells produced a dramatic drop in tubulin acetylation, increased the G-actin/F-actin ratio, and impaired myocardin-related transcription factor (MRTF)/serum response factor (SRF) dependent transcription, which is known to be repressed by increased levels of G actin. The effect on tubulin acetylation was caused by the almost complete absence of alpha-tubulin acetyltransferase 1 (alpha-TAT1) messenger RNA (mRNA). Activation of the MRTF-SRF transcriptional complex restored alpha-TAT1 mRNA levels and tubulin acetylation. Several functional MRTF-SRF-responsive elements were consistently identified in the alpha-TAT1 gene. The effect of INF2 silencing on microtubule acetylation was also observed in epithelial ECV304 cells, but not in Jurkat T cells. Therefore, the actin-MRTF-SRF circuit controls alpha-TAT1 transcription. INF2 regulates the circuit, and hence microtubule acetylation, in cell types where it has a prominent role in actin polymerization. PMID- 29321170 TI - An interaction between myosin-10 and the cell cycle regulator Wee1 links spindle dynamics to mitotic progression in epithelia. AB - Anaphase in epithelia typically does not ensue until after spindles have achieved a characteristic position and orientation, but how or even if cells link spindle position to anaphase onset is unknown. Here, we show that myosin-10 (Myo10), a motor protein involved in epithelial spindle dynamics, binds to Wee1, a conserved regulator of cyclin-dependent kinase 1 (Cdk1). Wee1 inhibition accelerates progression through metaphase and disrupts normal spindle dynamics, whereas perturbing Myo10 function delays anaphase onset in a Wee1-dependent manner. Moreover, Myo10 perturbation increases Wee1-mediated inhibitory phosphorylation on Cdk1, which, unexpectedly, concentrates at cell-cell junctions. Based on these and other results, we propose a model in which the Myo10-Wee1 interaction coordinates attainment of spindle position and orientation with anaphase onset. PMID- 29321171 TI - SGK1/FOXO3 Signaling in Hypothalamic POMC Neurons Mediates Glucocorticoid Increased Adiposity. AB - Although the central nervous system has been implicated in glucocorticoid-induced gain of fat mass, the underlying mechanisms are poorly understood. The aim of this study was to investigate the possible involvement of hypothalamic serum- and glucocorticoid-regulated kinase 1 (SGK1) in glucocorticoid-increased adiposity. It is well known that SGK1 expression is induced by acute glucocorticoid treatment, but it is interesting that we found its expression to be decreased in the arcuate nucleus of the hypothalamus, including proopiomelanocortin (POMC) neurons, following chronic dexamethasone (Dex) treatment. To study the role of SGK1 in POMC neurons, we produced mice that developed or experienced adult-onset SGK1 deletion in POMC neurons (PSKO). As observed in Dex-treated mice, PSKO mice exhibited increased adiposity and decreased energy expenditure. Mice overexpressing constitutively active SGK1 in POMC neurons consistently had the opposite phenotype and did not experience Dex-increased adiposity. Finally, Dex decreased hypothalamic alpha-melanocyte-stimulating hormone (alpha-MSH) content and its precursor Pomc expression via SGK1/FOXO3 signaling, and intracerebroventricular injection of alpha-MSH or adenovirus-mediated FOXO3 knockdown in the arcuate nucleus largely reversed the metabolic alterations in PSKO mice. These results demonstrate that POMC SGK1/FOXO3 signaling mediates glucocorticoid-increased adiposity, providing new insights into the mechanistic link between glucocorticoids and fat accumulation and important hints for possible treatment targets for obesity. PMID- 29321174 TI - Addressing complexity in population health intervention research: the context/intervention interface. AB - BACKGROUND: Public health interventions are increasingly being recognised as complex and context dependent. Related to this is the need for a systemic and dynamic conception of interventions that raises the question of delineating the scope and contours of interventions in complex systems. This means identifying which elements belong to the intervention (and therefore participate in its effects and can be transferred), which ones belong to the context and interact with the former to influence results (and therefore must be taken into account when transferring the intervention) and which contextual elements are irrelevant to the intervention. DISCUSSION: This paper, from which derives criteria based on a network framework, operationalises how the context and intervention systems interact and identify what needs to be replicated as interventions are implemented in different contexts. Representing interventions as networks (composed of human and non-human entities), we introduce the idea that the density of interconnections among the various entities provides a criterion for distinguishing core intervention from intervention context without disconnecting the two systems. This differentiates endogenous and exogenous intervention contexts and the mediators that connect them, which form the fuzzy and constantly changing intervention/context interface. CONCLUSION: We propose that a network framework representing intervention/context systems constitutes a promising approach for deriving empirical criteria to delineate the scope and contour of what is replicable in an intervention. This approach should allow better identification and description of the entities that have to be transferred to ensure the potential effectiveness of an intervention in a specific context. PMID- 29321172 TI - Modest Decreases in Endogenous All-trans-Retinoic Acid Produced by a Mouse Rdh10 Heterozygote Provoke Major Abnormalities in Adipogenesis and Lipid Metabolism. AB - Pharmacological dosing of all-trans-retinoic acid (atRA) controls adiposity in rodents by inhibiting adipogenesis and inducing fatty acid oxidation. Retinol dehydrogenases (Rdh) catalyze the first reaction that activates retinol into atRA. This study examined postnatal contributions of Rdh10 to atRA biosynthesis and physiological functions of endogenous atRA. Embryonic fibroblasts from Rdh10 heterozygote hypomorphs or with a total Rdh10 knockout exhibit decreased atRA biosynthesis and escalated adipogenesis. atRA or a retinoic acid receptor (RAR) pan-agonist reversed the phenotype. Eliminating one Rdh10 copy in vivo (Rdh10+/- ) yielded a modest decrease (<=25%) in the atRA concentration of liver and adipose but increased adiposity in male and female mice fed a high-fat diet (HFD); increased liver steatosis, glucose intolerance, and insulin resistance in males fed an HFD; and activated bone marrow adipocyte formation in females, regardless of dietary fat. Chronic dosing with low-dose atRA corrected the metabolic defects. These data resolve physiological actions of endogenous atRA, reveal sex-specific effects of atRA in vivo, and establish the importance of Rdh10 to metabolic control by atRA. The consequences of a modest decrease in tissue atRA suggest that impaired retinol activation may contribute to diabesity, and low-dose atRA therapy may ameliorate adiposity and its sequelae of glucose intolerance and insulin resistance. PMID- 29321173 TI - An Autophagy-Independent Role for ATG41 in Sulfur Metabolism During Zinc Deficiency. AB - The Zap1 transcription factor of Saccharomyces cerevisiae is a key regulator in the genomic responses to zinc deficiency. Among the genes regulated by Zap1 during zinc deficiency is the autophagy-related gene ATG41 Here, we report that Atg41 is required for growth in zinc-deficient conditions, but not when zinc is abundant or when other metals are limiting. Consistent with a role for Atg41 in macroautophagy, we show that nutritional zinc deficiency induces autophagy and that mutation of ATG41 diminishes that response. Several experiments indicated that the importance of ATG41 function to growth during zinc deficiency is not because of its role in macroautophagy, but rather is due to one or more autophagy independent functions. For example, rapamycin treatment fully induced autophagy in zinc-deficient atg41Delta mutants but failed to improve growth. In addition, atg41Delta mutants showed a far more severe growth defect than any of several other autophagy mutants tested, and atg41Delta mutants showed increased Heat Shock Factor 1 activity, an indicator of protein homeostasis stress, while other autophagy mutants did not. An autophagy-independent function for ATG41 in sulfur metabolism during zinc deficiency was suggested by analyzing the transcriptome of atg41Delta mutants during the transition from zinc-replete to -deficient conditions. Analysis of sulfur metabolites confirmed that Atg41 is needed for the normal accumulation of methionine, homocysteine, and cysteine in zinc-deficient cells. Therefore, we conclude that Atg41 plays roles in both macroautophagy and sulfur metabolism during zinc deficiency. PMID- 29321175 TI - Upregulation of GH, but not IGF1, in the hippocampus of the lactating dam after kainic acid injury. AB - Lactation embodies a natural model of morphological, neurochemical, and functional brain plasticity. In this reproductive stage, the hippocampus of the female is less sensitive to excitotoxins in contrast to nulliparity. Growth hormone (GH) and insulin-like growth factor 1 (IGF1) are known to be neuroprotective in several experimental models of brain lesion. Here, activation of the GH-IGF1 pituitary-brain axis following kainic acid (7.5 mg/kg i.p. KA) lesion was studied in lactating and nulliparous rats. Serum concentrations of GH and IGF1 were uncoupled in lactation. Compared to virgin rats, the basal concentration of GH increased up to 40% but IGF1 decreased 58% in dams, and only GH increased further after KA treatment. In the hippocampus, basal expression of GH mRNA was higher (2.8-fold) in lactating rats than in virgin rats. GH mRNA expression in lactating rats increased further after KA administration in the hippocampus and in the hypothalamus, in parallel to GH protein concentration in the hippocampus of KA-treated lactating rats (43% vs lactating control), as detected by Western blot and immunofluorescence. Except for the significantly lower mRNA concentration in the liver of lactating rats, IGF1 expression was not altered by the reproductive condition or by KA treatment in the hippocampus and hypothalamus. Present results indicate upregulation of GH expression in the hippocampus after an excitotoxic lesion, suggesting paracrine/autocrine actions of GH as a factor underlying neuroprotection in the brain of the lactating dam. Since no induction of IGF1 was detected, present data suggest a direct action of GH. PMID- 29321176 TI - Effects of Diabetes Medications Targeting the Incretin System on the Kidney. PMID- 29321177 TI - Plasticity of the Mre11-Rad50-Xrs2-Sae2 nuclease ensemble in the processing of DNA-bound obstacles. AB - The budding yeast Mre11-Rad50-Xrs2 (MRX) complex and Sae2 function together in DNA end resection during homologous recombination. Here we show that the Ku complex shields DNA ends from exonucleolytic digestion but facilitates endonucleolytic scission by MRX with a dependence on ATP and Sae2. The incision site is enlarged into a DNA gap via the exonuclease activity of MRX, which is stimulated by Sae2 without ATP being present. RPA renders a partially resected or palindromic DNA structure susceptible to MRX-Sae2, and internal protein blocks also trigger DNA cleavage. We present models for how MRX-Sae2 creates entry sites for the long-range resection machinery. PMID- 29321178 TI - Transcription factor-dependent 'anti-repressive' mammalian enhancers exclude H3K27me3 from extended genomic domains. AB - Compacted chromatin and nucleosomes are known barriers to gene expression; the nature and relative importance of other transcriptional constraints remain unclear, especially at distant enhancers. Polycomb repressor complex 2 (PRC2) places the histone mark H3K27me3 predominantly at promoters, where its silencing activity is well documented. In adult tissues, enhancers lack H3K27me3, and it is unknown whether intergenic H3K27me3 deposits affect nearby genes. In primary intestinal villus cells, we identified hundreds of tissue-restricted enhancers that require the transcription factor (TF) CDX2 to prevent the incursion of H3K27me3 from adjoining areas of elevated basal marking into large well demarcated genome domains. Similarly, GATA1-dependent enhancers exclude H3K27me3 from extended regions in erythroid blood cells. Excess intergenic H3K27me3 in both TF-deficient tissues is associated with extreme mRNA deficits, which are significantly rescued in intestinal cells lacking PRC2. Explaining these observations, enhancers show TF-dependent binding of the H3K27 demethylase KDM6A. Thus, in diverse cell types, certain genome regions far from promoters accumulate H3K27me3, and optimal gene expression depends on enhancers clearing this repressive mark. These findings reveal new "anti-repressive" function for hundreds of tissue-specific enhancers. PMID- 29321179 TI - Physiological protein blocks direct the Mre11-Rad50-Xrs2 and Sae2 nuclease complex to initiate DNA end resection. AB - DNA double-strand break repair by homologous recombination is initiated by DNA end resection, which is commenced by the Mre11-Rad50-Xrs2 complex and Sae2 in yeast. Here we report that the nonhomologous end joining factor Ku limits the exonuclease activity of Mre11 and promotes its endonuclease to cleave 5' terminated DNA strands at break sites. Following initial endonucleolytic cleavage past the obstacle, Exo1 specifically extends the resection track, leading to the generation of long 3' overhangs that are required for homologous recombination. These experiments provide mechanistic insights into how short-range and long range DNA end resection enzymes overcome obstacles near broken DNA ends to initiate recombination. PMID- 29321180 TI - Two-year neurodevelopmental outcomes of extremely preterm infants treated with early hydrocortisone: treatment effect according to gestational age at birth. AB - OBJECTIVE: To determine whether early hydrocortisone treatment in extremely preterm infants affects neurodevelopmental outcomes at 2 years of age according to gestational age at birth. PATIENTS AND METHODS: This is an exploratory analysis of neurodevelopmental outcomes by gestational age strata from the PREMILOC trial, in which patients were randomly assigned to receive either placebo or low-dose hydrocortisone and randomisation was stratified by gestational age groups (24-25 and 26-27 weeks of gestation). Neurodevelopmental impairment (NDI) was assessed using a standardised neurological examination and the revised Brunet-Lezine scale at 22 months of corrected age. RESULTS: A total of 379 of 406 survivors were evaluated, 96/98 in the gestational age group of 24 25 weeks and 283/308 in the gestational age group of 26-27 weeks. Among surviving infants born at 24-25 weeks, significant improvement in global neurological assessment was observed in the hydrocortisone group compared with the placebo group (P=0.02) with a risk of moderate-to-severe NDI of 2% and 18%, respectively (risk difference 16 (95% CI -28% to -5%)). In contrast, no statistically significant difference between treatment groups was observed in infants born at 26-27 weeks (P=0.95) with a similar risk of moderate-to-severe NDI of 9% in both groups. The incidence of cerebral palsy or other major neurological impairments were found similar between treatment groups in each gestational group. CONCLUSIONS: In an exploratory analysis of neurodevelopmental outcomes from the PREMILOC trial, early low-dose hydrocortisone was associated with a statistically significant improvement in neurodevelopmental outcomes in infants born at 24 and 25 weeks of gestation. PMID- 29321182 TI - And one last thing. PMID- 29321183 TI - PTGS2 polymorphism rs689466 favors breast cancer recurrence in obese patients. AB - Breast cancer is the leading cancer among women, and its increasing incidence is a challenge worldwide. Estrogen exposure is the main risk factor, but obesity among postmenopausal women has been shown to favor disease onset and progression. The link between obesity and mammary carcinogenesis involves elevated estrogen production and proinflammatory stimuli within the adipose tissue, with activation of the cyclooxygenase-2 pathway. Here, we evaluate the impact of the four most common cyclooxygenase-2 gene polymorphisms (rs689465, rs689466, rs20417 and rs20417), in combination with obesity, on the risk of breast cancer progression in a cohort of Brazilian breast cancer patients (N = 1038). Disease-free survival was evaluated using Kaplan-Meier curves, with multivariate Cox proportional hazards regression models for calculation of adjusted hazard ratios (HRadj). Obesity did not affect disease progression, whereas rs689466 variant genotypes increased the recurrence risk among obese patients (HRadj = 2.5; 95% CI = 1.4 4.3), either for luminal (HRadj = 2.2; 95% CI = 1.1-4.2) or HER2-like and triple negative tumors (HRadj = 3.2; 95% CI = 1.2-8.5). Likewise, the haplotype *4, which contains variant rs689466, was associated with shorter disease-free survival among obese patients (HRadj = 3.3; 95% CI = 1.8-6.0), either in luminal (HRadj = 3.5; 95% CI = 1.6-7.3) or HER2-like and triple-negative (HRadj = 3.1; 95% CI = 1.1-8.9) tumors. Such deleterious impact of variant rs689466 on disease free survival of obese breast cancer patients was restricted to postmenopausal women. In conclusion, cyclooxygenase-2 genotyping may add to the prognostic evaluation of obese breast cancer patients. PMID- 29321185 TI - Non-genetic diversity modulates population performance. PMID- 29321184 TI - A Sizer model for cell differentiation in Arabidopsis thaliana root growth. AB - Plant roots grow due to cell division in the meristem and subsequent cell elongation and differentiation, a tightly coordinated process that ensures growth and adaptation to the changing environment. How the newly formed cells decide to stop elongating becoming fully differentiated is not yet understood. To address this question, we established a novel approach that combines the quantitative phenotypic variability of wild-type Arabidopsis roots with computational data from mathematical models. Our analyses reveal that primary root growth is consistent with a Sizer mechanism, in which cells sense their length and stop elongating when reaching a threshold value. The local expression of brassinosteroid receptors only in the meristem is sufficient to set this value. Analysis of roots insensitive to BR signaling and of roots with gibberellin biosynthesis inhibited suggests distinct roles of these hormones on cell expansion termination. Overall, our study underscores the value of using computational modeling together with quantitative data to understand root growth. PMID- 29321186 TI - Cross-species Comparison of Proteome Turnover Kinetics. AB - The constitutive process of protein turnover plays a key role in maintaining cellular homeostasis. Recent technological advances in mass spectrometry have enabled the measurement of protein turnover kinetics across the proteome. However, it is not known if turnover kinetics of individual proteins are highly conserved or if they have evolved to meet the physiological demands of individual species. Here, we conducted systematic analyses of proteome turnover kinetics in primary dermal fibroblasts isolated from eight different rodent species. Our results highlighted two trends in the variability of proteome turnover kinetics across species. First, we observed a decrease in cross-species correlation of protein degradation rates as a function of evolutionary distance. Second, we observed a negative correlation between global protein turnover rates and maximum lifespan of the species. We propose that by reducing the energetic demands of continuous protein turnover, long-lived species may have evolved to lessen the generation of reactive oxygen species and the corresponding oxidative damage over their extended lifespans. PMID- 29321181 TI - Mechanisms of erythrocyte development and regeneration: implications for regenerative medicine and beyond. AB - Hemoglobin-expressing erythrocytes (red blood cells) act as fundamental metabolic regulators by providing oxygen to cells and tissues throughout the body. Whereas the vital requirement for oxygen to support metabolically active cells and tissues is well established, almost nothing is known regarding how erythrocyte development and function impact regeneration. Furthermore, many questions remain unanswered relating to how insults to hematopoietic stem/progenitor cells and erythrocytes can trigger a massive regenerative process termed 'stress erythropoiesis' to produce billions of erythrocytes. Here, we review the cellular and molecular mechanisms governing erythrocyte development and regeneration, and discuss the potential links between these events and other regenerative processes. PMID- 29321187 TI - Infection by the Helminth Parasite Fasciola hepatica Requires Rapid Regulation of Metabolic, Virulence, and Invasive Factors to Adjust to Its Mammalian Host. AB - The parasite Fasciola hepatica infects a broad range of mammals with impunity. Following ingestion of parasites (metacercariae) by the host, newly excysted juveniles (NEJ) emerge from their cysts, rapidly penetrate the duodenal wall and migrate to the liver. Successful infection takes just a few hours and involves negotiating hurdles presented by host macromolecules, tissues and micro environments, as well as the immune system. Here, transcriptome and proteome analysis of ex vivo F. hepatica metacercariae and NEJ reveal the rapidity and multitude of metabolic and developmental alterations that take place in order for the parasite to establish infection. We found that metacercariae despite being encased in a cyst are metabolically active, and primed for infection. Following excystment, NEJ expend vital energy stores and rapidly adjust their metabolic pathways to cope with their new and increasingly anaerobic environment. Temperature increases induce neoblast proliferation and the remarkable up regulation of genes associated with growth and development. Cysteine proteases synthesized by gastrodermal cells are secreted to facilitate invasion and tissue degradation, and tegumental transporters, such as aquaporins, are varied to deal with osmotic/salinity changes. Major proteins of the total NEJ secretome include proteases, protease inhibitors and anti-oxidants, and an array of immunomodulators that likely disarm host innate immune effector cells. Thus, the challenges of infection by F. hepatica parasites are met by rapid metabolic and physiological adjustments that expedite tissue invasion and immune evasion; these changes facilitate parasite growth, development and maturation. Our molecular analysis of the critical processes involved in host invasion has identified key targets for future drug and vaccine strategies directed at preventing parasite infection. PMID- 29321189 TI - Gut-brain signaling in energy homeostasis: the unexpected role of microbiota derived succinate. AB - In the context of the obesity epidemic, dietary fibers that are found essentially in fruit and vegetables attract more and more attention, since they exert numerous metabolic benefits resulting in the moderation of body weight. Short chain fatty acids, such as propionate and butyrate, produced through their fermentation by the intestinal microbiota, have long been thought to be the mediators of these benefits. In fact, propionate and butyrate were recently shown to activate intestinal gluconeogenesis, a function exerting metabolic benefits via its capacity of signaling to the brain by gastrointestinal nerves. Recently, succinate, the precursor of propionate in the bacterial metabolism, has also been shown to exert signaling properties, including the activation of intestinal gluconeogenesis. PMID- 29321188 TI - Far-Red Light Detection in the Shoot Regulates Lateral Root Development through the HY5 Transcription Factor. AB - Plants in dense vegetation compete for resources and detect competitors through reflection of far-red (FR) light from surrounding plants. This reflection causes a reduced red (R):FR ratio, which is sensed through phytochromes. Low R:FR induces shade avoidance responses of the shoot and also changes the root system architecture, although this has received little attention so far. Here, we investigate the molecular mechanisms through which light detection in the shoot regulates root development in Arabidopsis thaliana We do so using a combination of microscopy, gene expression, and mutant study approaches in a setup that allows root imaging without exposing the roots to light treatment. We show that low R:FR perception in the shoot decreases the lateral root (LR) density by inhibiting LR emergence. This decrease in LR emergence upon shoot FR enrichment is regulated by phytochrome-dependent accumulation of the transcription factor ELONGATED HYPOCOTYL5 (HY5) in the LR primordia. HY5 regulates LR emergence by decreasing the plasma membrane abundance of PIN-FORMED3 and LIKE-AUX1 3 auxin transporters. Accordingly, FR enrichment reduces the auxin signal in the overlaying cortex cells, and this reduces LR outgrowth. This shoot-to-root communication can help plants coordinate resource partitioning under competition for light in high density fields. PMID- 29321190 TI - Genomic landscape of pancreatic neuroendocrine tumours: the International Cancer Genome Consortium. AB - Neuroendocrine tumours (NETs) may arise throughout the body and are a highly heterogeneous, relatively rare class of neoplasms difficult to study also for the lack of disease models. Despite this, knowledge on their molecular alterations has expanded in the latest years, also building from genetic syndromes causing their onset. Pancreatic NETs (PanNETs) have been among the most studied, and research so far has outlined a series of recurring features, as inactivation of MEN1, VHL, TSC1/2 genes and hyperactivation of the PI3K/mTOR pathway. Next generation sequencing has added new information by showing the key role of alternative lengthening of telomeres, driven in a fraction of PanNETs by inactivation of ATRX/DAXX. Despite this accumulation of knowledge, single studies often relied on few cases or were limited to the DNA, RNA, protein or epigenetic level with lack of integrative analysis. The International Cancer Genome Consortium aimed at removing these barriers through a strict process of data and samples collection, to produce whole-genome integrated analyses for many tumour types. The results of this effort on PanNETs have been recently published and, while confirming previous observations provide a first snapshot of how heterogeneous is the combination of genetic alterations that drive this tumour type, yet converging into four pathways whose alteration has been enriched by newly discovered mechanisms. While calling for further integration of genetic and epigenetic analyses, these data allow to reconcile previous findings in a defined frame and may provide clinical research with markers for patients stratification and to guide targeted therapy decisions. PMID- 29321191 TI - Mortality After Magnetic Resonance Imaging of the Brain in Patients With Cardiovascular Implantable Devices. AB - BACKGROUND: Use of magnetic resonance imaging (MRI) brain is restricted in patients with cardiovascular implantable electronic devices (CIEDs). We proposed to determine whether mortality difference exists for patients with non-MRI conditional CIEDs undergoing brain MRI compared with controls. METHODS AND RESULTS: Retrospective analysis of prospectively collected data was performed to compare all-cause mortality in patients with CIEDs undergoing brain MRI (CIED MRI) with 3 control groups matched for age, sex, imaging year, and type of CIED: (1) no CIED, brain MRI (no-CIED-MRI); (2) CIED, brain computerized tomography (CT) scan (CIED-CT); and (3) no CIED, brain CT (no-CIED-CT). The primary outcome was a significant difference (P<0.05) between estimated mortality rates. Secondary outcomes were changes in device function before and after brain MRI. The estimated all-cause mortality at 5 years for the CIED-MRI group [mean age (+/ SD), 68.2 years (15.3 years); 61.2% men] was not significantly different from patients who underwent CT with or without a device (CIED-CT group: hazard ratio, 0.814; 95% confidence interval, 0.593-1.117; P=0.2; no-CIED-CT group: hazard ratio, 1.149; 95% confidence interval, 0.818-1.613; P=0.4). There was a significant increase in mortality between CIED-MRI and no-CIED-MRI groups (hazard ratio, 1.463; 95% confidence interval, 1.019-2.099; P=0.04). CONCLUSIONS: Brain MRI in patients with CIEDs does not carry an increased mortality risk compared with brain CT and can be performed with adherence to appropriate procedural protocols. PMID- 29321192 TI - Transvenous Lead Extraction in Chronic Kidney Disease and Dialysis Patients With Infected Cardiac Devices. AB - BACKGROUND: Cardiac implantable electronic device infections have been on the rise. A high-risk population is that with renal disease, especially dialysis. We aimed to assess procedural profiles and clinical outcomes of transvenous lead extraction for cardiac implantable electronic device infection based on renal disease status. METHODS AND RESULTS: In 1420 consecutive patients undergoing transvenous lead extraction of infected cardiac implantable electronic devices (1996-2012), we assessed procedural profiles and clinical outcomes in 3 groups: normal renal function (group 1, n=1159), renal dysfunction not requiring dialysis (group 2, n=163), and dialysis (group 3, n=98). A total of 3182 infected leads were extracted. Dialysis patients had shorter lead dwell times and were less likely to require transvenous lead extraction tools but as likely to require femoral workstations. There were higher overall rates of procedure-related complications in dialysis patients (12% versus ~6% in nondialysis) with no difference in the major complication rates (P=not significant). Complete procedural success rates were 94%, 96%, and 94% in groups 1, 2, and 3, respectively (P=not significant). There were 4 intraprocedural deaths in group 1 versus none in groups 2 and 3. Mortality rates were significantly higher in dialysis patients both at 1 and 6 months (P<0.0001 for both). In multivariable analyses, dialysis status was independently associated with increased mortality risk at 1 and 6 months. Other factors associated with mortality were lead material retention, functional (New York Heart Association) class, and occurrence of procedural complications. CONCLUSIONS: In patients with cardiac implantable electronic device infection, dialysis status did not seem to add complexity to transvenous lead extraction but was independently associated with increased mortality at 1 and 6 months. PMID- 29321193 TI - Cardiac Implantable Electronic Device Infections and Lead Extraction: Are Patients With Renal Insufficiency Special? PMID- 29321195 TI - Whole-Genome Sequencing of Emerging Invasive Neisseria meningitidis Serogroup W in Sweden. AB - Invasive disease caused by Neisseria meningitidis serogroup W (MenW) has historically had a low incidence in Sweden, with an average incidence of 0.03 case/100,000 population from 1995 to 2014. In recent years, a significant increase in the incidence of MenW has been noted in Sweden, to an average incidence of 0.15 case/100,000 population in 2015 to 2016. In 2017 (1 January to 30 June), 33% of invasive meningococcal disease cases (7/21 cases) were caused by MenW. In the present study, all invasive MenW isolates from Sweden collected in 1995 to June 2017 (n = 86) were subjected to whole-genome sequencing to determine the population structure and to compare isolates from Sweden with historical and international cases. The increase of MenW in Sweden was determined to be due to isolates belonging to the South American sublineage of MenW clonal complex 11, namely, the novel U.K. 2013 lineage. This lineage was introduced in Sweden in 2013 and has since been the dominant lineage of MenW. PMID- 29321196 TI - Birt-Hogg-Dube syndrome: spontaneous pneumothorax as a first symptom. AB - Birt-Hogg-Dube syndrome (BHDS) is a rare hereditary autosomal dominant condition characterised by benign cutaneous lesions, lung cysts, increased risk of spontaneous pneumothorax and renal cancer. It shows great heterogenous presentation within and between affected families. We report a case of a Danish female patient with recurrent pneumothoraces as the first symptom of BHDS. Over the years, she developed skin changes, and a family history of skin changes, pneumothoraces and renal cancer was discovered. BHDS was suspected, a genetic analysis was performed and a pathogenic variation c.1285delC in FLCN gene was detected in the patient. As we stated the diagnosis BHDS, we discovered several undiagnosed family members all of them now entering a lifelong follow-up programme with abdominal imaging because of the increased risk of developing renal cancer. BHDS should be known to oncologists, dermatologists and pulmonologists as the patients most often present to these medical disciplines. PMID- 29321197 TI - Iatrogenic foreign body in an adult with presbyacusis. PMID- 29321198 TI - Hepatic amyloidosis: a cause of rapidly progressive jaundice. PMID- 29321199 TI - Coats disease with exudative retinal detachment simulating cysticercus cyst: misleading ultrasonography! PMID- 29321194 TI - Polygenic hazard score to guide screening for aggressive prostate cancer: development and validation in large scale cohorts. AB - OBJECTIVES: To develop and validate a genetic tool to predict age of onset of aggressive prostate cancer (PCa) and to guide decisions of who to screen and at what age. DESIGN: Analysis of genotype, PCa status, and age to select single nucleotide polymorphisms (SNPs) associated with diagnosis. These polymorphisms were incorporated into a survival analysis to estimate their effects on age at diagnosis of aggressive PCa (that is, not eligible for surveillance according to National Comprehensive Cancer Network guidelines; any of Gleason score >=7, stage T3-T4, PSA (prostate specific antigen) concentration >=10 ng/L, nodal metastasis, distant metastasis). The resulting polygenic hazard score is an assessment of individual genetic risk. The final model was applied to an independent dataset containing genotype and PSA screening data. The hazard score was calculated for these men to test prediction of survival free from PCa. SETTING: Multiple institutions that were members of international PRACTICAL consortium. PARTICIPANTS: All consortium participants of European ancestry with known age, PCa status, and quality assured custom (iCOGS) array genotype data. The development dataset comprised 31 747 men; the validation dataset comprised 6411 men. MAIN OUTCOME MEASURES: Prediction with hazard score of age of onset of aggressive cancer in validation set. RESULTS: In the independent validation set, the hazard score calculated from 54 single nucleotide polymorphisms was a highly significant predictor of age at diagnosis of aggressive cancer (z=11.2, P<10-16). When men in the validation set with high scores (>98th centile) were compared with those with average scores (30th-70th centile), the hazard ratio for aggressive cancer was 2.9 (95% confidence interval 2.4 to 3.4). Inclusion of family history in a combined model did not improve prediction of onset of aggressive PCa (P=0.59), and polygenic hazard score performance remained high when family history was accounted for. Additionally, the positive predictive value of PSA screening for aggressive PCa was increased with increasing polygenic hazard score. CONCLUSIONS: Polygenic hazard scores can be used for personalised genetic risk estimates that can predict for age at onset of aggressive PCa. PMID- 29321200 TI - Bilateral haemorrhagic basal ganglia infarction associated with early-onset group B streptococcus meningitis. AB - A 2-day-old infant presented with poor feeding and grunting. Investigations revealed a raised C reactive protein of 164. Full septic screen was done, which subsequently confirmed a diagnosis of group B streptococcus meningitis. Baby was apyrexial and haemodynamically stable. There were no obvious neurological manifestations, and a routine cranial ultrasound scan was done, which revealed echogenic changes in the basal ganglia and thalami. MRI brain showed extensive haemorrhagic infarction within the lentiform and caudate nuclei with involvement of both posterior limbs of the internal capsule. This was followed by triventricular hydrocephalus needing shunt procedure. The clinical course was complicated by infantile spasms, which were treated with vigabatrin and steroids and subsequent global developmental delay and cerebral palsy. PMID- 29321201 TI - Brain abscess in a patient with chronic sinusitis. PMID- 29321203 TI - Acute-on-chronic mesenteric ischaemia by early and diffuse atherosclerosis in a young adult patient. PMID- 29321202 TI - Extraocular muscle cysticercosis: never skip steroids. PMID- 29321204 TI - Larval infestation of chronic ischaemic leg ulcer. PMID- 29321205 TI - Advantages of a distant cellulase catalytic base. AB - The inverting glycoside hydrolase Trichoderma reesei (Hypocrea jecorina) Cel6A is a promising candidate for protein engineering for more economical production of biofuels. Until recently, its catalytic mechanism had been uncertain: The best candidate residue to serve as a catalytic base, Asp-175, is farther from the glycosidic cleavage site than in other glycoside hydrolase enzymes. Recent unbiased transition path sampling simulations revealed the hydrolytic mechanism for this more distant base, employing a water wire; however, it is not clear why the enzyme employs a more distant catalytic base, a highly conserved feature among homologs across different kingdoms. In this work, we describe molecular dynamics simulations designed to uncover how a base with a longer side chain, as in a D175E mutant, affects procession and active site alignment in the Michaelis complex. We show that the hydrogen bond network is tuned to the shorter aspartate side chain, and that a longer glutamate side chain inhibits procession as well as being less likely to adopt a catalytically productive conformation. Furthermore, we draw comparisons between the active site in Trichoderma reesei Cel6A and another inverting, processive cellulase to deduce the contribution of the water wire to the overall enzyme function, revealing that the more distant catalytic base enhances product release. Our results can inform efforts in the study and design of enzymes by demonstrating how counterintuitive sacrifices in chemical reactivity can have worthwhile benefits for other steps in the catalytic cycle. PMID- 29321206 TI - Revealing the protein propionylation activity of the histone acetyltransferase MOF (males absent on the first). AB - Short-chain acylation of lysine residues has recently emerged as a group of reversible posttranslational modifications in mammalian cells. The diversity of acylation further broadens the landscape and complexity of the proteome. Identification of regulatory enzymes and effector proteins for lysine acylation is critical to understand functions of these novel modifications at the molecular level. Here, we report that the MYST family of lysine acetyltransferases (KATs) possesses strong propionyltransferase activity both in vitro and in cellulo Particularly, the propionyltransferase activity of MOF, MOZ, and HBO1 is as strong as their acetyltransferase activity. Overexpression of MOF in human embryonic kidney 293T cells induced significantly increased propionylation in multiple histone and non-histone proteins, which shows that the function of MOF goes far beyond its canonical histone H4 lysine 16 acetylation. We also resolved the X-ray co-crystal structure of MOF bound with propionyl-coenzyme A, which provides a direct structural basis for the propionyltransferase activity of the MYST KATs. Our data together define a novel function for the MYST KATs as lysine propionyltransferases and suggest much broader physiological impacts for this family of enzymes. PMID- 29321209 TI - Issues and challenges for research in major trauma. AB - The starting point for evidence-based guidelines is the systematic review and critical appraisal of the relevant literature. This review highlights the risk of bias identified while critically appraising the evidence to inform the National Institute of Health and Care Excellence guideline on the assessment and initial management of major trauma. PMID- 29321208 TI - Engineered synthetic antibodies as probes to quantify the energetic contributions of ligand binding to conformational changes in proteins. AB - Conformational changes in proteins due to ligand binding are ubiquitous in biological processes and are integral to many biological systems. However, it is often challenging to link ligand-induced conformational changes to a resulting biological function because it is difficult to distinguish between the energetic components associated with ligand binding and those due to structural rearrangements. Here, we used a unique approach exploiting conformation-specific and regio-specific synthetic antibodies (sABs) to probe the energetic contributions of ligand binding to conformation changes. Using maltose-binding protein (MBP) as a model system, customized phage-display selections were performed to generate sABs that stabilize MBP in different conformational states, modulating ligand-binding affinity in competitive, allosteric, or peristeric manners. We determined that the binding of a closed conformation-specific sAB (sAB-11M) to MBP in the absence of maltose is entropically driven, providing new insight into designing antibody-stabilized protein interactions. Crystal structures of sABs bound to MBP, together with biophysical data, delineate the basis of free energy differences between different conformational states and confirm the use of the sABs as energy probes for dissecting enthalpic and entropic contributions to conformational transitions. Our work provides a foundation for investigating the energetic contributions of distinct conformational dynamics to specific biological outputs. We anticipate that our approach also may be valuable for analyzing the energy landscapes of regulatory proteins controlling biological responses to environmental changes. PMID- 29321207 TI - Aberrantly high expression of the CUB and zona pellucida-like domain-containing protein 1 (CUZD1) in mammary epithelium leads to breast tumorigenesis. AB - The peptide hormone prolactin (PRL) and certain members of the epidermal growth factor (EGF) family play central roles in mammary gland development and physiology, and their dysregulation has been implicated in mammary tumorigenesis. Our recent studies have revealed that the CUB and zona pellucida-like domain containing protein 1 (CUZD1) is a critical factor for PRL-mediated activation of the transcription factor STAT5 in mouse mammary epithelium. Of note, CUZD1 controls production of a specific subset of the EGF family growth factors and consequent activation of their receptors. Here, we found that consistent with this finding, CUZD1 overexpression in non-transformed mammary epithelial HC11 cells increases their proliferation and induces tumorigenic characteristics in these cells. When introduced orthotopically in mouse mammary glands, these cells formed adenocarcinomas, exhibiting elevated levels of STAT5 phosphorylation and activation of the EGF signaling pathway. Selective blockade of STAT5 phosphorylation by pimozide, a small-molecule inhibitor, markedly reduced the production of the EGF family growth factors and inhibited PRL-induced tumor cell proliferation in vitro Pimozide administration to mice also suppressed CUZD1 driven mammary tumorigenesis in vivo Analysis of human MCF7 breast cancer cells indicated that CUZD1 controls the production of the same subset of EGF family members in these cells as in the mouse. Moreover, pimozide treatment reduced the proliferation of these cancer cells. Collectively, these findings indicate that overexpression of CUZD1, a regulator of growth factor pathways controlled by PRL and STAT5, promotes mammary tumorigenesis. Blockade of the STAT5 signaling pathway downstream of CUZD1 may offer a therapeutic strategy for managing these breast tumors. PMID- 29321210 TI - The Immune Checkpoint Modulator OX40 and Its Ligand OX40L in NK-Cell Immunosurveillance and Acute Myeloid Leukemia. AB - The TNF receptor family member OX40 promotes activation and proliferation of T cells, which fuels efforts to modulate this immune checkpoint to reinforce antitumor immunity. Besides T cells, NK cells are a second cytotoxic lymphocyte subset that contributes to antitumor immunity, particularly in leukemia. Accordingly, these cells are being clinically evaluated for cancer treatment through multiple approaches, such as adoptive transfer of ex vivo expanded polyclonal NK cells (pNKC). Here, we analyzed whether and how OX40 and its ligand (OX40L) influence NK-cell function and antileukemia reactivity. We report that OX40 is expressed on leukemic blasts in a substantial percentage of patients with acute myeloid leukemia (AML) and that OX40 can, after stimulation with agonistic OX40 antibodies, mediate proliferation and release of cytokines that act as growth and survival factors for the leukemic cells. We also demonstrate that pNKC differentially express OX40L, depending on the protocol used for their generation. OX40L signaling promoted NK-cell activation, cytokine production, and cytotoxicity, and disruption of OX40-OX40L interaction impaired pNKC reactivity against primary AML cells. Together, our data implicate OX40/OX40L in disease pathophysiology of AML and in NK-cell immunosurveillance. Our findings indicate that effects of the OX40-OX40L receptor-ligand system in other immune cell subsets and also malignant cells should be taken into account when developing OX40-targeted approaches for cancer immunotherapy. Cancer Immunol Res; 6(2); 209 21. (c)2018 AACR. PMID- 29321211 TI - Pathophysiology of Degenerative Mitral Regurgitation: New 3-Dimensional Imaging Insights. AB - Despite its high prevalence, little is known about mechanisms of mitral regurgitation in degenerative mitral valve disease apart from the leaflet prolapse itself. Mitral valve is a complex structure, including mitral annulus, mitral leaflets, papillary muscles, chords, and left ventricular walls. All these structures are involved in physiological and pathological functioning of this valvuloventricular complex but up to now were difficult to analyze because of inherent limitations of 2-dimensional imaging. The advent of 3-dimensional echocardiography, computed tomography, and cardiac magnetic resonance imaging overcoming these limitations provides new insights into mechanistic analysis of degenerative mitral regurgitation. This review will detail the contribution of quantitative and qualitative dynamic analysis of mitral annulus and mitral leaflets by new imaging methods in the understanding of degenerative mitral regurgitation pathophysiology. PMID- 29321212 TI - Prognostic Value of Right Ventricular Dysfunction in Heart Failure With Reduced Ejection Fraction: Superiority of Longitudinal Strain Over Tricuspid Annular Plane Systolic Excursion. AB - BACKGROUND: In heart failure (HF) with reduced ejection fraction, right ventricular (RV) impairment, as defined by reduced tricuspid annular plane systolic excursion, is a predictor of poor outcome. However, peak longitudinal strain of RV free wall (RVFWS) has been recently proposed as a more accurate and sensitive tool to evaluate RV function. Accordingly, we investigated whether RVFWS could help refine prognosis of patients with HF with reduced ejection fraction in whom tricuspid annular plane systolic excursion is still preserved. METHODS AND RESULTS: A total of 200 patients with HF with reduced ejection fraction (age, 66+/-11 years; ejection fraction, 30+/-7%) with preserved tricuspid annular plane systolic excursion (>16 mm) underwent RV function assessment using speckle-tracking echocardiography to measure peak RVFWS. After a median follow-up period of 28 months, 62 (31%) patients reached the primary composite end point of all-cause death/HF rehospitalization. Median RVFWS was 19.3% (interquartile range, -23.3% to -15.0%). By lasso-penalized Cox-hazard model, RVFWS was an independent predictor of outcome, along with Eplerenone in Mild Patients Hospitalization and Survival Study in Heart Failure-HF score, Echo HF score, and severe mitral regurgitation. The best cutoff value of RVFWS for prediction of outcome was -15.3% (area under the curve, 0.68; P<0.001; sensitivity, 50%; specificity, 80%). In 50 patients (25%), RVFWS was impaired (ie, >=-15.3%); event rate (per 100 patients per year) was greater in them than in patients with RVFWS <-15.3% (29.5% [95% confidence interval, 20.4-42.7] versus 9.4% [95% confidence interval, 6.7-13.1]; P<0.001). RVFWS yielded a significant net reclassification improvement (0.584 at 3 years; P<0.001), with 68% of nonevents correctly reclassified. CONCLUSIONS: In patients with HF with reduced ejection fraction with preserved tricuspid annular plane systolic excursion, RV free-wall strain provides incremental prognostic information and improved risk stratification. PMID- 29321213 TI - 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomographic Imaging Detects Aortic Wall Inflammation in Patients With Repaired Coarctation of Aorta. PMID- 29321214 TI - 18F-Flurodeoxyglucose and 18F-Sodium Fluoride Positron Emission Tomography/Computed Tomography Imaging of Arterial and Cutaneous Alterations in Pseudoxanthoma Elasticum. PMID- 29321215 TI - Right Ventricular Function in Heart Failure: The Long and Short of Free Wall Motion Versus Deformation Imaging. PMID- 29321217 TI - Erratum. Factors Associated With Diabetes-Specific Health-Related Quality of Life in Youth With Type 1 Diabetes: The Global TEENs Study. Diabetes Care 2017;40:1002 1009. PMID- 29321218 TI - Non-uniform relationship between salt status and aldosterone activity in patients with chronic kidney disease. AB - BACKGROUND: Hypertension is prevalent in chronic kidney disease (CKD). Studies suggest that reduction in dietary salt intake reduces blood pressure (BP). We studied relationships between salt intake, BP and renin-angiotensin system regulation in order to establish if it is disordered in CKD. METHODS: Mechanistic crossover study of CKD patients versus non-CKD controls. Participants underwent modified saline suppression test prior to randomization to either low or high salt diet for 5 days and then crossed over to the alternate diet. Angiotensin-II stimulation testing was performed in both salt states. BP, urea and electrolytes, and plasma aldosterone concentration (PAC) were measured. RESULTS: Twenty-seven subjects were recruited (12 CKD, 15 control). There was no difference in age and baseline BP between the groups. Following administration of intravenous saline, systolic BP increased in CKD but not controls (131 +/- 16 to 139 +/- 14 mmHg, P=0.016 vs 125 +/- 20 to 128 +/- 22 mmHg, P=0.38). Median PAC reduced from 184 (124,340) to 95 (80,167) pmol in controls (P=0.003), but failed to suppress in CKD (230 (137,334) to 222 (147,326) pmol (P=0.17)). Following dietary salt modification, there was no change in BP in either group. Median PAC was lower following high salt compared with low salt diet in CKD and controls. There was a comparable increase in systolic BP in response to angiotensin-II in both groups. DISCUSSION: We demonstrate dysregulation of aldosterone in CKD in response to salt loading with intravenous saline, but not to dietary salt modification. PMID- 29321219 TI - What can the lived experience of participating in risky HIV cure-related studies establish? AB - This response to Gail Henderson et al argues that they were right that interviewees' appraisals of cure study participation should inform (future) protocol review decisions, but wrong to take these appraisals at face value. PMID- 29321220 TI - Against proportional shortfall as a priority-setting principle. AB - As the demand for healthcare rises, so does the need for priority setting in healthcare. In this paper, I consider a prominent priority-setting principle: proportional shortfall. My purpose is to argue that proportional shortfall, as a principle, should not be adopted. My key criticism is that proportional shortfall fails to consider past health.Proportional shortfall is justified as it supposedly balances concern for prospective health while still accounting for lifetime health, even though past health is deemed irrelevant. Accounting for this lifetime perspective means that the principle may indirectly consider past health by accounting for how far an individual is from achieving a complete, healthy life. I argue that proportional shortfall does not account for this lifetime perspective as it fails to incorporate the fair innings argument as originally claimed, undermining its purported justification.I go on to demonstrate that the case for ignoring past health is weak, and argue that past health is at least sometimes relevant for priority-setting decisions. Specifically, when an individual's past health has a direct impact on current or future health, and when one individual has enjoyed significantly more healthy life years than another.Finally, I demonstrate that by ignoring past illnesses, even those entirely unrelated to their current illness, proportional shortfall can lead to instances of double jeopardy, a highly problematic implication. These arguments give us reason to reject proportional shortfall. PMID- 29321221 TI - Is consistency overrated? PMID- 29321223 TI - WESTERN MEDICAL RESEARCH CONFERENCE (FORMERLY WESTERN REGIONAL MEETING). PMID- 29321227 TI - Neurofilament light, biomarkers, and Charcot-Marie-Tooth disease. PMID- 29321225 TI - Humanized TREM2 mice reveal microglia-intrinsic and -extrinsic effects of R47H polymorphism. AB - Alzheimer's disease (AD) is a neurodegenerative disease that causes late-onset dementia. The R47H variant of the microglial receptor TREM2 triples AD risk in genome-wide association studies. In mouse AD models, TREM2-deficient microglia fail to proliferate and cluster around the amyloid-beta plaques characteristic of AD. In vitro, the common variant (CV) of TREM2 binds anionic lipids, whereas R47H mutation impairs binding. However, in vivo, the identity of TREM2 ligands and effect of the R47H variant remain unknown. We generated transgenic mice expressing human CV or R47H TREM2 and lacking endogenous TREM2 in the 5XFAD AD model. Only the CV transgene restored amyloid-beta-induced microgliosis and microglial activation, indicating that R47H impairs TREM2 function in vivo. Remarkably, soluble TREM2 was found on neurons and plaques in CV- but not R47H expressing 5XFAD brains, although in vitro CV and R47H were shed similarly via Adam17 proteolytic activity. These results demonstrate that TREM2 interacts with neurons and plaques duing amyloid-beta accumulation and R47H impairs this interaction. PMID- 29321226 TI - The association of neurologists with headache health care utilization and costs. AB - OBJECTIVE: To determine the association of a neurologist visit with headache health care utilization and costs. METHODS: Utilizing a large privately insured health care claims database, we identified patients with an incident headache diagnosis (ICD-9 codes 339.xx, 784.0x, 306.81) with at least 5 years follow-up. Patients with a subsequent neurologist visit were matched to controls without a neurologist visit using propensity score matching, accounting for 54 potential confounders and regional variation in neurologist density. Co-primary outcomes were emergency department (ED) visits and hospitalizations for headache. Secondary outcomes were quality measures (abortive, prophylactic, and opioid prescriptions) and costs (total, headache-related, and non-headache-related). Generalized estimating equations assessed differences in longitudinal outcomes between cases and controls. RESULTS: We identified 28,585 cases and 57,170 controls. ED visits did not differ between cases and controls (p = 0.05). Hospitalizations were more common in cases in year 0-1 (0.2%, 95% confidence interval [CI] 0.2%-0.3% vs 0.01%, 95% CI 0.01%-0.02%; p < 0.01), with minimal differences in subsequent years. Costs (including non-headache-related costs) and high-quality and low-quality medication utilization were higher in cases in the first year and decreased toward control costs in subsequent years with small differences persisting over 5 years. Opioid prescriptions increased over time in both cases and controls. CONCLUSION: Compared with those without a neurologist, headache patients who visit neurologists had a transient increase in hospitalizations, but the same ED utilization. Confounding by severity is the most likely explanation given the non-headache-related cost trajectory. Claims based risk adjustment will likely underestimate disease severity of headache patients seen by neurologists. PMID- 29321228 TI - Comment: Tau CSF proteins for diagnosis but tau PET imaging for AD diagnosis and staging. PMID- 29321224 TI - Reconsidering an active role for G-actin in cytoskeletal regulation. AB - Globular (G)-actin, the actin monomer, assembles into polarized filaments that form networks that can provide structural support, generate force and organize the cell. Many of these structures are highly dynamic and to maintain them, the cell relies on a large reserve of monomers. Classically, the G-actin pool has been thought of as homogenous. However, recent work has shown that actin monomers can exist in distinct groups that can be targeted to specific networks, where they drive and modify filament assembly in ways that can have profound effects on cellular behavior. This Review focuses on the potential factors that could create functionally distinct pools of actin monomers in the cell, including differences between the actin isoforms and the regulation of G-actin by monomer binding proteins, such as profilin and thymosin beta4. Owing to difficulties in studying and visualizing G-actin, our knowledge over the precise role that specific actin monomer pools play in regulating cellular actin dynamics remains incomplete. Here, we discuss some of these unanswered questions and also provide a summary of the methodologies currently available for the imaging of G-actin. PMID- 29321230 TI - Progressive multifocal leukoencephalopathy: Are you aware of it? PMID- 29321229 TI - The national incidence of PML in Sweden, 1988-2013. AB - OBJECTIVE: To investigate the incidence of progressive multifocal leukoencephalopathy (PML) and patient characteristics in Sweden between 1988 and 2013. METHODS: All PML diagnoses in Sweden between 1988 and 2013 were identified in the National Patient Register. Information to validate the diagnosis and patient characteristics was obtained from medical records. RESULTS: Medical record review classified 108 out of 250 patients (43%) as definite (n = 84), probable (n = 4), or possible (n = 20) PML according to diagnostic criteria. Accurate diagnoses were more common in records obtained from neurology departments (82% of patients seen in neurology departments) compared with other departments (31%) (p < 0.001). The incidence of PML increased from a largely stable level at 0.026 (95% confidence interval [CI] 0.021-0.031) per 100,000 individuals per year during 1988-2010 to 0.11 (95% CI 083-0.137) during 2011 2013, during which time there was a notable increase (p < 0.001). Hematologic malignancies (n = 34), HIV/AIDS (n = 33), and autoimmune disease (n = 23) were the most common underlying diseases. Treatment with a monoclonal antibody prior to PML diagnosis was identified in 26 patients. CONCLUSION: An increased incidence of PML in Sweden was observed and coincided with the prior use of monoclonal antibody treatment. The high level of misdiagnosis emphasizes the importance of immediate contact with a neurology center upon suspicion of PML. PMID- 29321231 TI - Chronic traumatic encephalopathy in an epilepsy surgery cohort: Clinical and pathologic findings. AB - OBJECTIVE: To determine the occurrence of chronic traumatic encephalopathy (CTE) in young adult patients undergoing epilepsy surgery. METHODS: Ten patients who underwent epilepsy surgery were randomly selected for this retrospective study. The patients were 18-45 years of age, had preoperative neuropsychological evaluation, and had 1 year postoperative follow-up. Microscopic sections from resections were evaluated for the presence of CTE with standard stains and antibodies to tau (clone AT8). RESULTS: The median age at resection was 32.5 years (range 23-43) and the median duration of seizures was 23.5 years (range 3 28). Eight had a history of head injury. Preoperative neuropsychological testing showed mild to moderate cognitive impairment in 8 patients (80%). Pathologic examination in one patient showed focal sparse tau-immunoreactive lesions along descending rami and cortical gyral depths of the resected frontal lobe. Nine patients had no evidence of CTE. All focal cortical resections showed variable subpial and subcortical gliosis commonly identified in patients with chronic seizure disorders. CONCLUSIONS: The present small retrospective observational study suggests that CTE may occur, but appears uncommon, in young adult patients undergoing surgical treatment for drug-resistant focal epilepsy. The significance of these findings requires further investigation to define the relative importance of tau accumulation in younger adult patients with drug-resistant focal epilepsy and cognitive decline. PMID- 29321232 TI - Hypermyelination of the left auditory cortex in developmental dyslexia. AB - OBJECTIVE: Cortical malformations are documented postmortem in speech processing areas of the dyslexic human brain. The goal of this pilot study was to find out if such anatomic anomalies can be detected noninvasively and in vivo. METHODS: We developed a reconstruction of left perisylvian cortex profiles at a resolution of 400 MUm using T1 data acquired with ultra-high-field MRI at 7T. Cortical thickness, myelinated cortical thickness, and layer-wise myelination were then compared in 6 men with developmental dyslexia and 6 healthy controls matched for age, sex, handedness, education level, and nonverbal IQ. RESULTS: Compared to healthy controls, dyslexic individuals showed comparable cortical thickness (t[1,10] = 1.98, p = 0.311) but significantly increased myelinated cortical thickness ratio (t[1,10] = 3.85, p = 0.013, familywise error-corrected, Cohen d = 2.03), resulting in an area under the receiver operator characteristic curve of 0.944 (p = 0.010, standard error 0.067, 95% confidence interval 0.814-1). Moreover, T1 relaxation, especially in layer IV of the left auditory cortex, was also significantly increased (t[1,10] = 3.32, p = 0.043, familywise-error corrected, Cohen d = 1.67). CONCLUSIONS: Our findings provide critical insights into the neurobiological manifestation of the most common learning disorder and suggest that our approach might also shed new light on other neurodevelopmental disorders associated with cortical abnormalities. PMID- 29321233 TI - Effect of psychostimulants on blood pressure profile and endothelial function in narcolepsy. AB - OBJECTIVE: To assess the effect of psychostimulant treatments on the 24-hour blood pressure (BP) profile of patients with narcolepsy type 1 (NT1). METHODS: Heart rate (HR) and BP were monitored for 24 hours and morning endothelial function was evaluated in 160 consecutive patients with NT1: 68 untreated (41 male, median age 34.9 years), 54 treated (32 male, median age 40.9 years), and 38 evaluated twice (21 male, median age 32 years), before and during treatment. RESULTS: Patients treated for NT1 showed higher 24-hour, daytime, and nighttime diastolic BP and HR values compared with the untreated group. Similarly, HR as well as 24-hour and daytime systolic BP were increased during treatment in the group evaluated twice. The combination of stimulant and anticataplectic drugs showed a synergistic effect on BP, without differences among stimulant categories. Based on 24-hour BP monitoring, hypertension was diagnosed in 58% of treated patients and in 40.6% of untreated patients. After adjustments for age, sex, and body mass index, the percentage of REM sleep remained associated with 24 hour hypertension in untreated and treated patients. Endothelial function was comparable in treated and untreated patients. CONCLUSIONS: The finding that patients with NT1 treated with psychostimulants have higher diastolic BP and HR than untreated patients suggests an increased long-term risk of cardiovascular diseases that requires careful follow-up and specific management. PMID- 29321234 TI - Plasma neurofilament light chain concentration in the inherited peripheral neuropathies. AB - OBJECTIVE: To perform a cross-sectional study to determine whether plasma neurofilament light chain (NfL) concentration is elevated in patients with Charcot-Marie-Tooth disease (CMT) and if it correlates with disease severity. METHODS: Blood samples were collected from 75 patients with CMT and 67 age matched healthy controls over a 1-year period. Disease severity was measured using the Rasch modified CMT Examination and neuropathy scores. Plasma NfL concentration was measured using an in-house-developed Simoa assay. RESULTS: Plasma NfL concentration was significantly higher in patients with CMT (median 26.0 pg/mL) compared to healthy controls (median 14.6 pg/mL, p < 0.0001) and correlated with disease severity as measured using the Rasch modified CMT examination (r = 0.43, p < 0.0001) and neuropathy (r = 0.37, p = 0.044) scores. Concentrations were also significantly higher when subdividing patients by genetic subtype (CMT1A, SPTLC1, and GJB1) or into demyelinating or axonal forms compared to healthy controls. CONCLUSION: There are currently no validated blood biomarkers for peripheral neuropathy. The significantly raised plasma NfL concentration in patients with CMT and its correlation with disease severity suggest that plasma NfL holds promise as a biomarker of disease activity, not only for inherited neuropathies but for peripheral neuropathy in general. PMID- 29321222 TI - Multiple Inhibitory Factors Act in the Late Phase of HIV-1 Replication: a Systematic Review of the Literature. AB - The use of lentiviral vectors for therapeutic purposes has shown promising results in clinical trials. The ability to produce a clinical-grade vector at high yields remains a critical issue. One possible obstacle could be cellular factors known to inhibit human immunodeficiency virus (HIV). To date, five HIV restriction factors have been identified, although it is likely that more factors are involved in the complex HIV-cell interaction. Inhibitory factors that have an adverse effect but do not abolish virus production are much less well described. Therefore, a gap exists in the knowledge of inhibitory factors acting late in the HIV life cycle (from transcription to infection of a new cell), which are relevant to the lentiviral vector production process. The objective was to review the HIV literature to identify cellular factors previously implicated as inhibitors of the late stages of lentivirus production. A search for publications was conducted on MEDLINE via the PubMed interface, using the keyword sequence "HIV restriction factor" or "HIV restriction" or "inhibit HIV" or "repress HIV" or "restrict HIV" or "suppress HIV" or "block HIV," with a publication date up to 31 December 2016. Cited papers from the identified records were investigated, and additional database searches were performed. A total of 260 candidate inhibitory factors were identified. These factors have been identified in the literature as having a negative impact on HIV replication. This study identified hundreds of candidate inhibitory factors for which the impact of modulating their expression in lentiviral vector production could be beneficial. PMID- 29321235 TI - Comparing 18F-AV-1451 with CSF t-tau and p-tau for diagnosis of Alzheimer disease. AB - OBJECTIVE: To compare PET imaging of tau pathology with CSF measurements (total tau [t-tau] and phosphorylated tau [p-tau]) in terms of diagnostic performance for Alzheimer disease (AD). METHODS: We compared t-tau and p-tau and 18F-AV-1451 in 30 controls, 14 patients with prodromal AD, and 39 patients with Alzheimer dementia, recruited from the Swedish BioFINDER study. All patients with AD (prodromal and dementia) were screened for amyloid positivity using CSF beta amyloid 42. Retention of 18F-AV-1451 was measured in a priori specified regions, selected for known associations with tau pathology in AD. RESULTS: Retention of 18F-AV-1451 was markedly elevated in Alzheimer dementia and moderately elevated in prodromal AD. CSF t-tau and p-tau was increased to similar levels in both AD dementia and prodromal AD. 18F-AV-1451 had very good diagnostic performance for Alzheimer dementia (area under the receiver operating characteristic curve [AUROC] ~1.000), and was significantly better than t-tau (0.876), p-tau (0.890), hippocampal volume (0.824), and temporal cortical thickness (0.860). For prodromal AD, there were no significant AUROC differences between CSF tau and 18F AV-1451 measures (0.836-0.939), but MRI measures had lower AUROCs (0.652-0.769). CONCLUSIONS: CSF tau and 18F-AV-1451 have equal performance in early clinical stages of AD, but 18F-AV-1451 is superior in the dementia stage, and exhibits close to perfect diagnostic performance for mild to moderate AD. CLASSIFICATION OF EVIDENCE: This study provides Class III evidence that CSF tau and 18F-AV-1451 PET have similar performance in identifying early AD, and that 18F-AV-1451 PET is superior to CSF tau in identifying mild to moderate AD. PMID- 29321236 TI - Midregional proatrial natriuretic peptide improves risk stratification after ischemic stroke. AB - OBJECTIVE: To validate midregional proatrial natriuretic peptide (MR-proANP) for outcome prediction and diagnosis of cardioembolic stroke etiology compared to established clinical variables. METHODS: In this prospective multicenter cohort study, we quantified MR-proANP levels in ischemic stroke patients within 24 hours of onset. Primary outcome measures were 90-day mortality, unfavorable functional outcome (modified Rankin Scale score >2), and cardioembolic stroke etiology diagnosed during hospitalization. RESULTS: Of 788 included patients, 783 completed their 90-day follow-up, and 118 patients (15%) died. After full adjustment, MR-proANP levels were associated with 90-day mortality (adjusted hazard ratio 6.12, 95% confidence interval [CI] 2.36-15.84, p = 0.01) and functional outcome (adjusted odds ratio [aOR] 2.46, 95% CI 1.05-5.74, p = 0.038). For mortality prediction, adding MR-proANP to the regression model increased its discriminatory accuracy, and the continuous net reclassification index (cNRI) was 49% (95% CI 26%-78%, p < 0.001). For functional outcome, there was no significant improvement in discrimination or reclassification. Cardioembolic stroke etiology and the diagnosis of atrial fibrillation at hospital discharge were associated with MR-proANP with an aOR of 2.10 (95% CI 1.11-3.97, p = 0.02) and 18.35 (95% CI 7.94-42.45, p < 0.001), respectively. The cNRI of MR-proANP for cardioembolic stroke etiology was not significant, as opposed to atrial fibrillation (78%, 95% CI 60%-89%, p < 0.001). MR-proANP levels >=289 pmol/L had a specificity of 86% and sensitivity of 48% for the diagnosis of atrial fibrillation. CONCLUSION: MR proANP is a newly validated blood biomarker providing additional prognostic information for mortality after stroke. Higher MR-proANP levels were associated with cardioembolic stroke etiology and, even more strongly, atrial fibrillation. PMID- 29321238 TI - An open-label trial of JAK 1/2 blockade in progressive IFIH1-associated neuroinflammation. PMID- 29321237 TI - Differences in risk factors for 3 types of stroke: UK prospective study and meta analyses. AB - OBJECTIVE: To compare associations of behavioral and related factors for incident subarachnoid hemorrhage and intracerebral hemorrhage and ischemic stroke. METHODS: A total of 712,433 Million Women Study participants without prior stroke, heart disease, or cancer reported behavioral and related factors at baseline (1999-2007) and were followed up by record linkage to national hospital admission and death databases. Cox regression yielded adjusted relative risks (RRs) by type of stroke. Heterogeneity was assessed with chi2 tests. When appropriate, meta-analyses were done of published prospective studies. RESULTS: After 12.9 (SD 2.6) years of follow-up, 8,128 women had an incident ischemic stroke, 2,032 had intracerebral hemorrhage, and 1,536 had subarachnoid hemorrhage. In women with diabetes mellitus, the risk of ischemic stroke was substantially increased (RR 2.01, 95% confidence interval [CI] 1.84-2.20), risk of intracerebral hemorrhage was increased slightly (RR 1.31, 95% CI 1.04-1.65), but risk of subarachnoid hemorrhage was reduced (RR 0.43, 95% CI 0.26-0.69) (heterogeneity by stroke type, p < 0.0001). Stroke incidence was greater in women who rated their health as poor/fair compared to those who rated their health as excellent/good (RR 1.36, 95% CI 1.30-1.42). Among 565,850 women who rated their heath as excellent/good, current smokers were at an increased risk of all 3 stroke types, (although greater for subarachnoid hemorrhage [>=15 cigarettes/d vs never smoker, RR 4.75, 95% CI 4.12-5.47] than for intracerebral hemorrhage [RR 2.30, 95% CI 1.94-2.72] or ischemic stroke [RR 2.50, 95% CI 2.29-2.72]; heterogeneity p < 0.0001). Obesity was associated with an increased risk of ischemic stroke and a decreased risk of hemorrhagic stroke (heterogeneity p < 0.0001). Meta-analyses confirmed the associations and the heterogeneity across the 3 types of stroke. CONCLUSION: Classic risk factors for stroke have considerably different effects on the 3 main pathologic types of stroke. PMID- 29321241 TI - Evolution of the shut-off steps of vertebrate phototransduction. AB - Different isoforms of the genes involved in phototransduction are expressed in vertebrate rod and cone photoreceptors, providing a unique example of parallel evolution via gene duplication. In this study, we determine the molecular phylogeny of the proteins underlying the shut-off steps of phototransduction in the agnathan and jawed vertebrate lineages. For the G-protein receptor kinases (GRKs), the GRK1 and GRK7 divisions arose prior to the divergence of tunicates, with further expansion during the two rounds of whole-genome duplication (2R); subsequently, jawed and agnathan vertebrates retained different subsets of three isoforms of GRK. For the arrestins, gene expansion occurred during 2R. Importantly, both for GRKs and arrestins, the respective rod isoforms did not emerge until the second round of 2R, just prior to the separation of jawed and agnathan vertebrates. For the triplet of proteins mediating shut-off of the G protein transducin, RGS9 diverged from RGS11, probably at the second round of 2R, whereas Gbeta5 and R9AP appear not to have undergone 2R expansion. Overall, our analysis provides a description of the duplications and losses of phototransduction shut-off genes that occurred during the transition from a chordate with only cone-like photoreceptors to an ancestral vertebrate with both cone- and rod-like photoreceptors. PMID- 29321242 TI - Adhesion/growth-regulatory galectins tested in combination: evidence for formation of hybrids as heterodimers. AB - The delineation of the physiological significance of protein (lectin)-glycan recognition and the structural analysis of individual lectins have directed our attention to studying them in combination. In this report, we tested the hypothesis of hybrid formation by using binary mixtures of homodimeric galectin-1 and -7 as well as a proteolytically truncated version of chimera-type galectin-3. Initial supportive evidence is provided by affinity chromatography using resin presented galectin-7. Intriguingly, the extent of cell binding by cross-linking of surface counter-receptor increased significantly for monomeric galectin-3 form by the presence of galectin-1 or -7. Pulsed-field gradient NMR (nuclear magnetic resonance) diffusion measurements on these galectin mixtures indicated formation of heterodimers as opposed to larger oligomers. 15N-1H heteronuclear single quantum coherence NMR spectroscopy and molecular dynamics simulations allowed us to delineate how different galectins interact in the heterodimer. The possibility of domain exchange between galectins introduces a new concept for understanding the spectrum of their functionality, particularly when these effector molecules are spatially and temporally co-expressed as found in vivo. PMID- 29321240 TI - Pigment-Dispersing Factor-expressing neurons convey circadian information in the honey bee brain. AB - Pigment-Dispersing Factor (PDF) is an important neuropeptide in the brain circadian network of Drosophila and other insects, but its role in bees in which the circadian clock influences complex behaviour is not well understood. We combined high-resolution neuroanatomical characterizations, quantification of PDF levels over the day and brain injections of synthetic PDF peptide to study the role of PDF in the honey bee Apis mellifera We show that PDF co-localizes with the clock protein Period (PER) in a cluster of laterally located neurons and that the widespread arborizations of these PER/PDF neurons are in close vicinity to other PER-positive cells (neurons and glia). PDF-immunostaining intensity oscillates in a diurnal and circadian manner with possible influences for age or worker task on synchrony of oscillations in different brain areas. Finally, PDF injection into the area between optic lobes and the central brain at the end of the subjective day produced a consistent trend of phase-delayed circadian rhythms in locomotor activity. Altogether, these results are consistent with the hypothesis that PDF is a neuromodulator that conveys circadian information from pacemaker cells to brain centres involved in diverse functions including locomotion, time memory and sun-compass orientation. PMID- 29321239 TI - Comparative genomic analysis of the 'pseudofungus' Hyphochytrium catenoides. AB - Eukaryotic microbes have three primary mechanisms for obtaining nutrients and energy: phagotrophy, photosynthesis and osmotrophy. Traits associated with the latter two functions arose independently multiple times in the eukaryotes. The Fungi successfully coupled osmotrophy with filamentous growth, and similar traits are also manifested in the Pseudofungi (oomycetes and hyphochytriomycetes). Both the Fungi and the Pseudofungi encompass a diversity of plant and animal parasites. Genome-sequencing efforts have focused on host-associated microbes (mutualistic symbionts or parasites), providing limited comparisons with free living relatives. Here we report the first draft genome sequence of a hyphochytriomycete 'pseudofungus'; Hyphochytrium catenoides Using phylogenomic approaches, we identify genes of recent viral ancestry, with related viral derived genes also present on the genomes of oomycetes, suggesting a complex history of viral coevolution and integration across the Pseudofungi. H. catenoides has a complex life cycle involving diverse filamentous structures and a flagellated zoospore with a single anterior tinselate flagellum. We use genome comparisons, drug sensitivity analysis and high-throughput culture arrays to investigate the ancestry of oomycete/pseudofungal characteristics, demonstrating that many of the genetic features associated with parasitic traits evolved specifically within the oomycete radiation. Comparative genomics also identified differences in the repertoire of genes associated with filamentous growth between the Fungi and the Pseudofungi, including differences in vesicle trafficking systems, cell-wall synthesis pathways and motor protein repertoire, demonstrating that unique cellular systems underpinned the convergent evolution of filamentous osmotrophic growth in these two eukaryotic groups. PMID- 29321243 TI - Adipose depot-specific effects of ileal interposition surgery in UCD-T2D rats: unexpected implications for obesity and diabetes. AB - Ileal interposition (IT) surgery delays the onset of diabetes in a rat model of type-2 diabetes (UCD-T2DM). Here, to gain a deeper understanding of the molecular events underlying the effects of IT surgery, we examined the changes in the proteome of four white adipose depots (retroperitoneal, mesenteric, inguinal, and epididymal) and plasma-free fatty acid profile in pre-diabetic rats 1.5 months following IT or sham surgery. The IT-mediated changes were exerted mainly in mesenteric fat and spanned from delayed adipocyte maturation to a neuroendocrine remodeling. Conversely, inguinal, retroperitoneal, and epididymal depots showed opposite trends consistent with increased adipocyte maturation and adipogenesis development prior to overt signs of diabetes, probably orchestrated by peroxisome proliferator-activated receptor gamma signaling and higher plasma n-6/n-3 free fatty acid ratios. The resulting scenario suggests a targeted use of surgical strategies that seek to delay or improve diabetes in order to manipulate adipose depot-specific responses to maximize the duration and beneficial effects of the surgery. PMID- 29321245 TI - Limited support for the X-linked grandmother hypothesis in pre-industrial Finland. AB - The level of kin help often depends on the degree of relatedness between a helper and the helped. In humans, grandmother help is known to increase the survival of grandchildren, though this benefit can differ between maternal grandmothers (MGMs) and paternal grandmothers (PGMs) and between grandsons and granddaughters. The X-linked grandmother hypothesis posits that differential X-chromosome relatedness between grandmothers and their grandchildren is a leading driver of differential grandchild survival between grandmother lineages and grandchild sexes. We tested this hypothesis using time-event models on a large, multigenerational dataset from pre-industrial Finland. We found that the presence of an MGM increases grandson survival more than PGM presence, and that granddaughter survival is higher than that of grandsons in the presence of a PGM. However, there was no support for the key prediction that the presence of PGMs improves granddaughter survival more than that of MGMs, diminishing the overall support for the hypothesis. Our results call for alternative explanations for differences in the effects of maternal and paternal kin to grandchild survival in humans. PMID- 29321246 TI - Unique perceptuomotor control of stone hammers in wild monkeys. AB - We analysed the patterns of coordination of striking movement and perceptuomotor control of stone hammers in wild bearded capuchin monkeys, Sapajus libidinosus as they cracked open palm nut using hammers of different mass, a habitual behaviour in our study population. We aimed to determine why these monkeys cannot produce conchoidally fractured flakes as do contemporary human knappers or as did prehistoric hominin knappers. We found that the monkeys altered their patterns of coordination of movement to accommodate changes in hammer mass. By altering their patterns of coordination, the monkeys kept the strike's amplitude and the hammer's velocity at impact constant with respect to hammer mass. In doing so, the hammer's kinetic energy at impact-which determines the propagation of a fracture/crack in a nut-varied across hammers of different mass. The monkeys did not control the hammer's kinetic energy at impact, the key parameter a perceiver actor should control while knapping stones. These findings support the hypothesis that the perceptuomotor control of stone hammers in wild bearded capuchin monkeys is inadequate to produce conchoidally fractured flakes by knapping stones, as do humans. PMID- 29321244 TI - Silencing carboxylesterase 1 in human THP-1 macrophages perturbs genes regulated by PPARgamma/RXR and RAR/RXR: down-regulation of CYP27A1-LXRalpha signaling. AB - Macrophage foam cells store excess cholesterol as cholesteryl esters, which need to be hydrolyzed for cholesterol efflux. We recently reported that silencing expression of carboxylesterase 1 (CES1) in human THP-1 macrophages [CES1KD (THP-1 cells with CES1 expression knocked down) macrophages] reduced cholesterol uptake and decreased expression of CD36 and scavenger receptor-A in cells loaded with acetylated low-density lipoprotein (acLDL). Here, we report that CES1KD macrophages exhibit reduced transcription of cytochrome P45027A1 (CYP27A1) in nonloaded and acLDL-loaded cells. Moreover, levels of CYP27A1 protein and its enzymatic product, 27-hydroxycholesterol, were markedly reduced in CES1KD macrophages. Transcription of LXRalpha (liver X receptor alpha) and ABCA1 (ATP binding cassette transporter A1) was also decreased in acLDL-loaded CES1KD macrophages, suggesting reduced signaling through PPARgamma-CYP27A1-LXRalpha. Consistent with this, treatment of CES1KD macrophages with agonists for PPARgamma, RAR, and/or RAR/RXR partially restored transcription of CYP27A1 and LXRalpha, and repaired cholesterol influx. Conversely, treatment of control macrophages with antagonists for PPARgamma and/or RXR decreased transcription of CYP27A1 and LXRalpha Pharmacologic inhibition of CES1 in both wild-type THP-1 cells and primary human macrophages also decreased CYP27A1 transcription. CES1 silencing did not affect transcript levels of PPARgamma and RXR in acLDL-loaded macrophages, whereas it did reduce the catabolism of the endocannabinoid 2 arachidonoylglycerol. Finally, the gene expression profile of CES1KD macrophages was similar to that of PPARgamma knockdown cells following acLDL exposures, further suggesting a mechanistic link between CES1 and PPARgamma. These results are consistent with a model in which abrogation of CES1 function attenuates the CYP27A1-LXRalpha-ABCA1 signaling axis by depleting endogenous ligands for the nuclear receptors PPARgamma, RAR, and/or RXR that regulate cholesterol homeostasis. PMID- 29321248 TI - Early-life maltreatment predicts adult stress response in a long-lived wild bird. AB - Persistent phenotypic changes due to early-life stressors are widely acknowledged, but their relevance for wild, free-living animals is poorly understood. We evaluated effects of two natural stressors experienced when young (maltreatment by adults and nutritional stress) on stress physiology in wild Nazca boobies (Sula granti) 6-8 years later, an exceptionally long interval for such studies. Maltreatment as a nestling, but not nutritional stress, was associated years later with depressed baseline corticosterone in females and elevated stress-induced corticosterone concentration [CORT] in males. These results provide rare evidence of long-term hormonal effects of natural early-life stress, which may be adaptive mechanisms for dealing with future stressors. PMID- 29321249 TI - Facing each other: mammal mothers and infants prefer the position favouring right hemisphere processing. AB - The right hemisphere plays a crucial role in social processing. Human mothers show a robust left cradling/holding bias providing greater right-hemispheric involvement in the exchange of social information between mother and infant. Here, we demonstrate that a similar bias is evident in face-to-face spatial interactions in marine and terrestrial non-primate mammals. Walruses and Indian flying foxes showed a significant population-level preference for the position which facilitates the use of the left visual field in both mother and infant. This behavioural lateralization may have emerged owing to benefits conferred by the enhanced right-hemispheric social processing providing the mother and infant an optimal perception of each other. PMID- 29321247 TI - Aberrant regulation of autophagy in mammalian diseases. AB - Autophagy is a major cellular metabolic pathway that facilitates degradation of a subset of long-lived proteins and cytoplasmic organelles in eukaryotic cells. This pathway plays a vital role in preserving the cellular homeostasis of the cells themselves, in addition to maintaining the normal physiological state of cell renewal. Many stressors, such as starvation, ischaemia and oxidative stress can induce autophagy. In addition to its physiological roles, autophagy also occurs in a wide variety of pathological processes, including tumour progression, metabolic disorders, and neurodegenerative and lung diseases. In recent years, a growing body of evidence has shown that autophagy also plays a key role in the development of mammalian diseases, a function that has garnered substantial attention and study. An in-depth understanding of the molecular role that autophagy plays in pathological settings is vital for both the diagnosis and treatment of mammalian diseases and will aid in the search for novel targets for therapeutic drug intervention. Here, we provide an integrated review of recent studies implicating autophagy dysfunction in the progression of mammalian disorders and summarize research suggesting that the molecular pathways involved in autophagy could serve as potential therapeutic targets. PMID- 29321250 TI - Myosin II-interacting guanine nucleotide exchange factor promotes bleb retraction via stimulating cortex reassembly at the bleb membrane. AB - Blebs are involved in various biological processes such as cell migration, cytokinesis, and apoptosis. While the expansion of blebs is largely an intracellular pressure-driven process, the retraction of blebs is believed to be driven by RhoA activation that leads to the reassembly of the actomyosin cortex at the bleb membrane. However, it is still poorly understood how RhoA is activated at the bleb membrane. Here, we provide evidence demonstrating that myosin II-interacting guanine nucleotide exchange factor (MYOGEF) is implicated in bleb retraction via stimulating RhoA activation and the reassembly of an actomyosin network at the bleb membrane during bleb retraction. Interaction of MYOGEF with ezrin, a well-known regulator of bleb retraction, is required for MYOGEF localization to retracting blebs. Notably, knockout of MYOGEF or ezrin not only disrupts RhoA activation at the bleb membrane, but also interferes with nonmuscle myosin II localization and activation, as well as actin polymerization in retracting blebs. Importantly, MYOGEF knockout slows down bleb retraction. We propose that ezrin interacts with MYOGEF and recruits it to retracting blebs, where MYOGEF activates RhoA and promotes the reassembly of the cortical actomyosin network at the bleb membrane, thus contributing to the regulation of bleb retraction. PMID- 29321251 TI - Control of septin filament flexibility and bundling by subunit composition and nucleotide interactions. AB - Septins self-assemble into heteromeric rods and filaments to act as scaffolds and modulate membrane properties. How cells tune the biophysical properties of septin filaments to control filament flexibility and length, and in turn the size, shape, and position of higher-order septin structures, is not well understood. We examined how rod composition and nucleotide availability influence physical properties of septins such as annealing, fragmentation, bundling, and bending. We found that septin complexes have symmetric termini, even when both Shs1 and Cdc11 are coexpressed. The relative proportion of Cdc11/Shs1 septin complexes controls the biophysical properties of filaments and influences the rate of annealing, fragmentation, and filament flexibility. Additionally, the presence and apparent exchange of guanine nucleotide also alters filament length and bundling. An Shs1 mutant that is predicted to alter nucleotide hydrolysis has altered filament length and dynamics in cells and impacts cell morphogenesis. These data show that modulating filament properties through rod composition and nucleotide binding can control formation of septin assemblies that have distinct physical properties and functions. PMID- 29321252 TI - Analysis of the thresholds for transcriptional activation by the yeast MAP kinases Fus3 and Kss1. AB - Signaling in the pheromone response pathway of budding yeast activates two distinct MAP kinases (MAPKs), Fus3 and Kss1. Either MAPK alone can mediate pheromone-induced transcription, but it has been unclear to what degree each one contributes to transcriptional output in wild-type cells. Here, we report that transcription reflects the ratio of active to inactive MAPK, and not simply the level of active MAPK. For Kss1 the majority of MAPK molecules must be converted to the active form, whereas for Fus3 only a small minority must be activated. These different activation thresholds reflect two opposing effects of each MAPK, in which the inactive forms inhibit transcription, whereas the active forms promote transcription. Moreover, negative feedback from Fus3 limits activation of Kss1 so that it does not meet its required threshold in wild-type cells but does so only when hyperactivated in cells lacking Fus3. The results suggest that the normal transcriptional response involves asymmetric contributions from the two MAPKs, in which pheromone signaling reduces the negative effect of Kss1 while increasing the positive effect of Fus3. These findings reveal new functional distinctions between these MAPKs, and help illuminate how inhibitory functions shape positive pathway outputs in both pheromone and filamentation pathways. PMID- 29321254 TI - Surgical Mortality and Race as a Risk Factor: A Compass, Not a Destination. PMID- 29321253 TI - Role of the Hof1-Cyk3 interaction in cleavage-furrow ingression and primary septum formation during yeast cytokinesis. AB - In Saccharomyces cerevisiae, it is well established that Hof1, Cyk3, and Inn1 contribute to septum formation and cytokinesis. Because hof1? and cyk3? single mutants have relatively mild defects but hof1? cyk3? double mutants are nearly dead, it has been hypothesized that these proteins contribute to parallel pathways. However, there is also evidence that they interact physically. In this study, we examined this interaction and its functional significance in detail. Our data indicate that the interaction 1) is mediated by a direct binding of the Hof1 SH3 domain to a proline-rich motif in Cyk3; 2) occurs specifically at the time of cytokinesis but is independent of the (hyper)phosphorylation of both proteins that occurs at about the same time; 3) is dispensable for the normal localization of both proteins; 4) is essential for normal primary-septum formation and a normal rate of cleavage-furrow ingression; and 5) becomes critical for growth when either Inn1 or the type II myosin Myo1 (a key component of the contractile actomyosin ring) is absent. The similarity in phenotype between cyk3? mutants and mutants specifically lacking the Hof1-Cyk3 interaction suggests that the interaction is particularly important for Cyk3 function, but it may be important for Hof1 function as well. PMID- 29321255 TI - Multisite Emergency Department Inpatient Collaborative to Reduce Unnecessary Bronchiolitis Care. AB - BACKGROUND AND OBJECTIVES: There is high variation in the care of acute viral bronchiolitis. We sought to promote collaboration between emergency department (ED) and inpatient (IP) units with the goal of reducing unnecessary testing and treatment. METHODS: Multisite collaborative with improvement teams co-led by ED and IP physicians and a 1-year period of active participation. The intervention consisted of a multicomponent change package, regular webinars, and optional coaching. Data were collected by chart review for December 2014 through March 2015 (baseline) and December 2015 to March 2016 (improvement period). Patients <24 months of age with a primary diagnosis of bronchiolitis and without ICU admission, prematurity, or chronic lung or heart disease were eligible for inclusion. Control charts were used to detect improvement. Achievable benchmarks of care were calculated for each measure. RESULTS: Thirty-five hospitals with 5078 ED patients and 4389 IPs participated. Use of bronchodilators demonstrated special cause for the ED (mean centerline shift: 37.1%-24.5%, benchmark 5.8%) and IP (28.4%-17.7%, benchmark 9.1%). Project mean ED viral testing decreased from 42.6% to 25.4% after revealing special cause with a 3.9% benchmark, whereas chest radiography (30.9%), antibiotic use (6.2%), and steroid use (7.6%) in the ED units did not change. IP steroid use decreased from 7.2% to 4.0% after special cause with 0.0% as the benchmark. Within-site ED and IP performance was modestly correlated. CONCLUSIONS: Collaboration between ED and IP units was associated with a decreased use of unnecessary tests and therapies in bronchiolitis; top performers used few unnecessary tests or treatments. PMID- 29321256 TI - Race, Preoperative Risk Factors, and Death After Surgery. AB - BACKGROUND AND OBJECTIVES: African American children are more than twice as likely to die after surgery compared with white children. In this study, we evaluated whether risk factors for death after surgery differ for African American and white children, and we also assessed whether race-specific risk stratification models perform better than non-race-specific models. METHODS: The National Surgical Quality Improvement Program Pediatric Participant Use Data File contains clinical data on operations performed on children at participating institutions in the United States. Variables predictive of death within 30 days of surgery were analyzed for differences in prevalence and strength of association with death for both African American and white children. Classification tree and network analysis were used. RESULTS: Network analyses revealed that the prevalence of preoperative risk factors associated with death after surgery was significantly higher for African American than for white children. In addition, many of the risk factors associated with death after surgery carried a higher risk when they occurred in African American children. Race-specific risk models provided high accuracy, with a specificity of 94% and a sensitivity of 83% for African American children and a specificity of 96% and a sensitivity of 77% for white children, and yet these 2 models were significantly different from each other. CONCLUSIONS: Race-specific models predict outcomes after surgery more accurately compared with non-race-specific models. Identification of race-specific modifiable risk factors may help reduce racial disparities in surgery outcome. PMID- 29321257 TI - The antimicrobial peptide SAAP-148 combats drug-resistant bacteria and biofilms. AB - Development of novel antimicrobial agents is a top priority in the fight against multidrug-resistant (MDR) and persistent bacteria. We developed a panel of synthetic antimicrobial and antibiofilm peptides (SAAPs) with enhanced antimicrobial activities compared to the parent peptide, human antimicrobial peptide LL-37. Our lead peptide SAAP-148 was more efficient in killing bacteria under physiological conditions in vitro than many known preclinical- and clinical phase antimicrobial peptides. SAAP-148 killed MDR pathogens without inducing resistance, prevented biofilm formation, and eliminated established biofilms and persister cells. A single 4-hour treatment with hypromellose ointment containing SAAP-148 completely eradicated acute and established, biofilm-associated infections with methicillin-resistant Staphylococcus aureus and MDR Acinetobacter baumannii from wounded ex vivo human skin and murine skin in vivo. Together, these data demonstrate that SAAP-148 is a promising drug candidate in the battle against antibiotic-resistant bacteria that pose a great threat to human health. PMID- 29321259 TI - Plasmacytoid dendritic cells promote systemic sclerosis with a key role for TLR8. AB - Systemic sclerosis (SSc) is a multisystem life-threatening fibrosing disorder that lacks effective treatment. The link between the inflammation observed in organs such as the skin and profibrotic mechanisms is not well understood. The plasmacytoid dendritic cell (pDC) is a key cell type mediating Toll-like receptor (TLR)-induced inflammation in autoimmune disease patients, including lupus and skin diseases with interface dermatitis. However, the role of pDCs in fibrosis is less clear. We show that pDCs infiltrate the skin of SSc patients and are chronically activated, leading to secretion of interferon-alpha (IFN-alpha) and CXCL4, which are both hallmarks of the disease. We demonstrate that the secretion of CXCL4 is under the control of phosphatidylinositol 3-kinase delta and is due to the aberrant presence of TLR8 on pDCs of SSc patients, which is not seen in healthy donors or in lupus pDCs, and that CXCL4 primarily acts by potentiating TLR8- but also TLR9-induced IFN production by pDCs. Depleting pDCs prevented disease in a mouse model of scleroderma and could revert fibrosis in mice with established disease. In contrast, the disease was exacerbated in mice transgenic for TLR8 with recruitment of pDCs to the fibrotic skin, whereas TLR7 only partially contributed to the inflammatory response, indicating that TLR8 is the key RNA-sensing TLR involved in the establishment of fibrosis. We conclude that the pDC is an essential cell type involved in the pathogenesis of SSc and its removal using depleting antibodies or attenuating pDC function could be a novel approach to treat SSc patients. PMID- 29321260 TI - Mechanobiologically optimized 3D titanium-mesh scaffolds enhance bone regeneration in critical segmental defects in sheep. AB - Three-dimensional (3D) titanium-mesh scaffolds offer many advantages over autologous bone grafting for the regeneration of challenging large segmental bone defects. Our study supports the hypothesis that endogenous bone defect regeneration can be promoted by mechanobiologically optimized Ti-mesh scaffolds. Using finite element techniques, two mechanically distinct Ti-mesh scaffolds were designed in a honeycomb-like configuration to minimize stress shielding while ensuring resistance against mechanical failure. Scaffold stiffness was altered through small changes in the strut diameter only. Honeycombs were aligned to form three differently oriented channels (axial, perpendicular, and tilted) to guide the bone regeneration process. The soft scaffold (0.84 GPa stiffness) and a 3.5 fold stiffer scaffold (2.88 GPa) were tested in a critical size bone defect model in vivo in sheep. To verify that local scaffold stiffness could enhance healing, defects were stabilized with either a common locking compression plate that allowed dynamic loading of the 4-cm defect or a rigid custom-made plate that mechanically shielded the defect. Lower stress shielding led to earlier defect bridging, increased endochondral bone formation, and advanced bony regeneration of the critical size defect. This study demonstrates that mechanobiological optimization of 3D additive manufactured Ti-mesh scaffolds can enhance bone regeneration in a translational large animal study. PMID- 29321261 TI - A model-free method for measuring dimerization free energies of CLC-ec1 in lipid bilayers. AB - The thermodynamic reasons why membrane proteins form stable complexes inside the hydrophobic lipid bilayer remain poorly understood. This is largely because of a lack of membrane-protein systems amenable for equilibrium studies and a limited number of methods for measuring these reactions. Recently, we reported the equilibrium dimerization of the CLC-ec1 Cl-/H+ transporter in lipid bilayers (Chadda et al. 2016. eLife https://doi.org/10.7554/eLife.17438), which provided a new type of model system for studying protein association in membranes. The measurement was conducted using the subunit-capture approach, involving passive dilution of the protein in large multilamellar vesicles, followed by single molecule photobleaching analysis of the Poisson distribution describing protein encapsulation into extruded liposomes. To estimate the fraction of dimers (FDimer ) as a function of protein density, the photobleaching distributions for the nonreactive, ideal monomer and dimer species must be known so that random co capture probabilities can be accounted for. Previously, this was done by simulating the Poisson process of protein reconstitution into a known size distribution of liposomes composed of Escherichia coli polar lipids (EPLs). In the present study, we investigate the dependency of FDimer and DeltaG degrees on the modeling through a comparison of different liposome size distributions (EPL versus 2:1 POPE/POPG). The results show that the estimated FDimer values are comparable, except at higher densities when liposomes become saturated with protein. We then develop empirical controls to directly measure the photobleaching distributions of the nonreactive monomer (CLC-ec1 I201W/I422W) and ideal dimer (WT CLC-ec1 cross-linked by glutaraldehyde or CLC-ec1 R230C/L249C cross-linked by a disulfide bond). The measured equilibrium constants do not depend on the correction method used, indicating the robustness of the subunit capture approach. This strategy therefore presents a model-free way to quantify protein dimerization in lipid bilayers, offering a simplified strategy in the ongoing effort to characterize equilibrium membrane-protein reactions in membranes. PMID- 29321262 TI - Nonsensing residues in S3-S4 linker's C terminus affect the voltage sensor set point in K+ channels. AB - Voltage sensitivity in ion channels is a function of highly conserved arginine residues in their voltage-sensing domains (VSDs), but this conservation does not explain the diversity in voltage dependence among different K+ channels. Here we study the non-voltage-sensing residues 353 to 361 in Shaker K+ channels and find that residues 358 and 361 strongly modulate the voltage dependence of the channel. We mutate these two residues into all possible remaining amino acids (AAs) and obtain Q-V and G-V curves. We introduced the nonconducting W434F mutation to record sensing currents in all mutants except L361R, which requires K+ depletion because it is affected by W434F. By fitting Q-Vs with a sequential three-state model for two voltage dependence-related parameters (V0, the voltage dependent transition from the resting to intermediate state and V1, from the latter to the active state) and G-Vs with a two-state model for the voltage dependence of the pore domain parameter (V1/2), Spearman's coefficients denoting variable relationships with hydrophobicity, available area, length, width, and volume of the AAs in 358 and 361 positions could be calculated. We find that mutations in residue 358 shift Q-Vs and G-Vs along the voltage axis by affecting V0, V1, and V1/2 according to the hydrophobicity of the AA. Mutations in residue 361 also shift both curves, but V0 is affected by the hydrophobicity of the AA in position 361, whereas V1 and V1/2 are affected by size-related AA indices. Small to-tiny AAs have opposite effects on V1 and V1/2 in position 358 compared with 361. We hypothesize possible coordination points in the protein that residues 358 and 361 would temporarily and differently interact with in an intermediate state of VSD activation. Our data contribute to the accumulating knowledge of voltage dependent ion channel activation by adding functional information about the effects of so-called non-voltage-sensing residues on VSD dynamics. PMID- 29321263 TI - Estimating kinetic mechanisms with prior knowledge II: Behavioral constraints and numerical tests. AB - Kinetic mechanisms predict how ion channels and other proteins function at the molecular and cellular levels. Ideally, a kinetic model should explain new data but also be consistent with existing knowledge. In this two-part study, we present a mathematical and computational formalism that can be used to enforce prior knowledge into kinetic models using constraints. Here, we focus on constraints that quantify the behavior of the model under certain conditions, and on constraints that enforce arbitrary parameter relationships. The penalty-based optimization mechanism described here can be used to enforce virtually any model property or behavior, including those that cannot be easily expressed through mathematical relationships. Examples include maximum open probability, use dependent availability, and nonlinear parameter relationships. We use a simple kinetic mechanism to test multiple sets of constraints that implement linear parameter relationships and arbitrary model properties and behaviors, and we provide numerical examples. This work complements and extends the companion article, where we show how to enforce explicit linear parameter relationships. By incorporating more knowledge into the parameter estimation procedure, it is possible to obtain more realistic and robust models with greater predictive power. PMID- 29321258 TI - Functional variants in the LRRK2 gene confer shared effects on risk for Crohn's disease and Parkinson's disease. AB - Crohn's disease (CD), a form of inflammatory bowel disease, has a higher prevalence in Ashkenazi Jewish than in non-Jewish European populations. To define the role of nonsynonymous mutations, we performed exome sequencing of Ashkenazi Jewish patients with CD, followed by array-based genotyping and association analysis in 2066 CD cases and 3633 healthy controls. We detected association signals in the LRRK2 gene that conferred risk for CD (N2081D variant, P = 9.5 * 10-10) or protection from CD (N551K variant, tagging R1398H-associated haplotype, P = 3.3 * 10-8). These variants affected CD age of onset, disease location, LRRK2 activity, and autophagy. Bayesian network analysis of CD patient intestinal tissue further implicated LRRK2 in CD pathogenesis. Analysis of the extended LRRK2 locus in 24,570 CD cases, patients with Parkinson's disease (PD), and healthy controls revealed extensive pleiotropy, with shared genetic effects between CD and PD in both Ashkenazi Jewish and non-Jewish cohorts. The LRRK2 N2081D CD risk allele is located in the same kinase domain as G2019S, a mutation that is the major genetic cause of familial and sporadic PD. Like the G2019S mutation, the N2081D variant was associated with increased kinase activity, whereas neither N551K nor R1398H variants on the protective haplotype altered kinase activity. We also confirmed that R1398H, but not N551K, increased guanosine triphosphate binding and hydrolyzing enzyme (GTPase) activity, thereby deactivating LRRK2. The presence of shared LRRK2 alleles in CD and PD provides refined insight into disease mechanisms and may have major implications for the treatment of these two seemingly unrelated diseases. PMID- 29321264 TI - Estimating kinetic mechanisms with prior knowledge I: Linear parameter constraints. AB - To understand how ion channels and other proteins function at the molecular and cellular levels, one must decrypt their kinetic mechanisms. Sophisticated algorithms have been developed that can be used to extract kinetic parameters from a variety of experimental data types. However, formulating models that not only explain new data, but are also consistent with existing knowledge, remains a challenge. Here, we present a two-part study describing a mathematical and computational formalism that can be used to enforce prior knowledge into the model using constraints. In this first part, we focus on constraints that enforce explicit linear relationships involving rate constants or other model parameters. We develop a simple, linear algebra-based transformation that can be applied to enforce many types of model properties and assumptions, such as microscopic reversibility, allosteric gating, and equality and inequality parameter relationships. This transformation converts the set of linearly interdependent model parameters into a reduced set of independent parameters, which can be passed to an automated search engine for model optimization. In the companion article, we introduce a complementary method that can be used to enforce arbitrary parameter relationships and any constraints that quantify the behavior of the model under certain conditions. The procedures described in this study can, in principle, be coupled to any of the existing methods for solving molecular kinetics for ion channels or other proteins. These concepts can be used not only to enforce existing knowledge but also to formulate and test new hypotheses. PMID- 29321266 TI - Optimization-based synthesis of stochastic biocircuits with statistical specifications. AB - Model-guided design has become a standard approach to engineering biomolecular circuits in synthetic biology. However, the stochastic nature of biomolecular reactions is often overlooked in the design process. As a result, cell-cell heterogeneity causes unexpected deviation of biocircuit behaviours from model predictions and requires additional iterations of design-build-test cycles. To enhance the design process of stochastic biocircuits, this paper presents a computational framework to systematically specify the level of intrinsic noise using well-defined metrics of statistics and design highly heterogeneous biocircuits based on the specifications. Specifically, we use descriptive statistics of population distributions as an intuitive specification language of stochastic biocircuits and develop an optimization-based computational tool that explores parameter configurations satisfying design requirements. Sensitivity analysis methods are also performed to ensure the robustness of a biocircuit design against extrinsic perturbations. These design tools are formulated with convex optimization programs to enable rigorous and efficient quantification of the statistics. We demonstrate these features by designing a stochastic negative feedback biocircuit that satisfies multiple statistical constraints and perform an in-depth study of noise propagation and regulation in negative feedback pathways. PMID- 29321265 TI - Contribution of low-temperature single-molecule techniques to structural issues of pigment-protein complexes from photosynthetic purple bacteria. AB - As the electronic energies of the chromophores in a pigment-protein complex are imposed by the geometrical structure of the protein, this allows the spectral information obtained to be compared with predictions derived from structural models. Thereby, the single-molecule approach is particularly suited for the elucidation of specific, distinctive spectral features that are key for a particular model structure, and that would not be observable in ensemble-averaged spectra due to the heterogeneity of the biological objects. In this concise review, we illustrate with the example of the light-harvesting complexes from photosynthetic purple bacteria how results from low-temperature single-molecule spectroscopy can be used to discriminate between different structural models. Thereby the low-temperature approach provides two advantages: (i) owing to the negligible photobleaching, very long observation times become possible, and more importantly, (ii) at cryogenic temperatures, vibrational degrees of freedom are frozen out, leading to sharper spectral features and in turn to better resolved spectra. PMID- 29321267 TI - Extreme call amplitude from near-field acoustic wave coupling in the stridulating water insect Micronecta scholtzi (Micronectinae). AB - Underwater acoustic transducers, particularly at low frequencies, are beset by problems of scale and inefficiency due to the large wavelengths of sound in water. In insect mating calls, a high call volume is usually desirable, increasing the range of signal transmission and providing a form of advertisement of the signaller's quality to a potential mate; however, the strength of the call is constrained by body size and by the need to avoid predators who may be listening in. Male crickets and water boatmen avoid some of the limitations of body size by exploiting resonant structures, which produce sharply tuned species specific songs, but call frequency and volume remain linked to body size. Recently, the water boatman Micronecta scholtzi was found to circumvent this rule, producing a louder mating call than that of similar, but much larger, Corixa The resonant structure in Corixidae and Micronectinae is believed to be the trapped air reserves around the insect as it dives, driven by a stridulatory apparatus. However, the method by which energy is transferred from the striated area to the bubble is unknown. Here, we present modelling of a system of near field coupling of acoustic sources to bubbles showing an exponential increase in sound power gain with decreasing distance that provides a simple solution to the stimulus of the air bubbles in Corixidae and Micronectinae and explains the discrepancy of M. scholtzi's extreme call volume. The findings suggest a possible route to engineered systems using near-field coupling to overcome size constraints in low-frequency (less than 500 Hz) underwater transducers, where the input efficiency of a piezoelectric device can be coupled through the hydrodynamic field to the high radiative efficiency of a near-ideal monopole emitter. PMID- 29321268 TI - Computational techniques for ECG analysis and interpretation in light of their contribution to medical advances. AB - Widely developed for clinical screening, electrocardiogram (ECG) recordings capture the cardiac electrical activity from the body surface. ECG analysis can therefore be a crucial first step to help diagnose, understand and predict cardiovascular disorders responsible for 30% of deaths worldwide. Computational techniques, and more specifically machine learning techniques and computational modelling are powerful tools for classification, clustering and simulation, and they have recently been applied to address the analysis of medical data, especially ECG data. This review describes the computational methods in use for ECG analysis, with a focus on machine learning and 3D computer simulations, as well as their accuracy, clinical implications and contributions to medical advances. The first section focuses on heartbeat classification and the techniques developed to extract and classify abnormal from regular beats. The second section focuses on patient diagnosis from whole recordings, applied to different diseases. The third section presents real-time diagnosis and applications to wearable devices. The fourth section highlights the recent field of personalized ECG computer simulations and their interpretation. Finally, the discussion section outlines the challenges of ECG analysis and provides a critical assessment of the methods presented. The computational methods reported in this review are a strong asset for medical discoveries and their translation to the clinical world may lead to promising advances. PMID- 29321269 TI - Adding levels of complexity enhances robustness and evolvability in a multilevel genotype-phenotype map. AB - Robustness and evolvability are the main properties that account for the stability and accessibility of phenotypes. They have been studied in a number of computational genotype-phenotype maps. In this paper, we study a metabolic genotype-phenotype map defined in toyLIFE, a multilevel computational model that represents a simplified cellular biology. toyLIFE includes several levels of phenotypic expression, from proteins to regulatory networks to metabolism. Our results show that toyLIFE shares many similarities with other seemingly unrelated computational genotype-phenotype maps. Thus, toyLIFE shows a high degeneracy in the mapping from genotypes to phenotypes, as well as a highly skewed distribution of phenotypic abundances. The neutral networks associated with abundant phenotypes are highly navigable, and common phenotypes are close to each other in genotype space. All of these properties are remarkable, as toyLIFE is built on a version of the HP protein-folding model that is neither robust nor evolvable: phenotypes cannot be mutually accessed through point mutations. In addition, both robustness and evolvability increase with the number of genes in a genotype. Therefore, our results suggest that adding levels of complexity to the mapping of genotypes to phenotypes and increasing genome size enhances both these properties. PMID- 29321270 TI - Phenotypes can be robust and evolvable if mutations have non-local effects on sequence constraints. AB - The mapping between biological genotypes and phenotypes plays an important role in evolution, and understanding the properties of this mapping is crucial to determine the outcome of evolutionary processes. One of the most striking properties observed in several genotype-phenotype (GP) maps is the positive correlation between the robustness and evolvability of phenotypes. This implies that a phenotype can be strongly robust against mutations and at the same time evolvable to a diverse range of alternative phenotypes. Here, we examine the causes for this positive correlation by introducing two analytically tractable GP map models that follow the principles of real biological GP maps. The first model is based on gene-like GP maps, reflecting the way in which genetic sequences are organized into protein-coding genes, and the second one is based on the GP map of RNA secondary structure. For both models, we find that a positive correlation between phenotype robustness and evolvability only emerges if mutations at one sequence position can have non-local effects on the sequence constraints at another position. This highlights that non-local effects of mutations are closely related to the coexistence of robustness and evolvability in phenotypes, and are likely to be an important feature of many biological GP maps. PMID- 29321272 TI - Slapped with a fine or a slap on the wrist? Enforcing tobacco licensing legislation. PMID- 29321271 TI - Incremental distribution of strontium and zinc in great ape and fossil hominin cementum using synchrotron X-ray fluorescence mapping. AB - Cementum and the incremental markings it contains have been widely studied as a means of ageing animals and retrieving information about diet and nutrition. The distribution of trace elements in great ape and fossil hominin cementum has not been studied previously. Synchrotron X-ray fluorescence (SXRF) enables rapid scanning of large tissue areas with high resolution of elemental distributions. First, we used SXRF to map calcium, phosphorus, strontium and zinc distributions in great ape dentine and cementum. At higher resolution, we compared zinc and strontium distributions in cellular and acellular cementum in regions where clear incremental markings were expressed. We then mapped trace element distributions in fossil hominin dentine and cementum from the 1.55-1.65 million year old site of Koobi Fora, Kenya. Zinc, in particular, is a precise marker of cementum increments in great apes, and is retained in fossil hominin cementum, but does not correspond well with the more diffuse fluctuations observed in strontium distribution. Cementum is unusual among mineralized tissues in retaining so much zinc. This is known to reduce the acid solubility of hydroxyapatite and so may confer resistance to resorption by osteoclasts in the dynamic remodelling environment of the periodontal ligament and alveolar bone. PMID- 29321273 TI - How tobacco companies in the United Kingdom prepared for, and responded to, standardised packaging of cigarettes and rolling tobacco. AB - INTRODUCTION: As a result of the Standardised Packaging of Tobacco Products Regulations and Tobacco Products Directive, all packs of cigarettes (factory-made and hand-rolled) in the UK must be drab brown, display pictorial warnings on the principal display areas and contain no less than 20 cigarettes or 30 g of tobacco. The legislation was phased in between May 2016 and May 2017. Our objective was to monitor pack, brand and product changes preimplementation and postimplementation. METHODS: Our surveillance of the cigarette market involved a review of the trade press, a monthly monitor of online supermarkets and regular visits to stores, from May 2015 to June 2017. RESULTS: Before standardised packaging there were changes to the pack graphics (eg, redesigned packs and limited editions) and pack structure (eg, resealable inner foil) and the issue of a number of reusable tins. After standardised packaging, changes included newer cigarette pack sizes for some brand variants (eg, 23 and 24 packs). Changes to the branding prestandardised packaging included brand extensions, and poststandardised packaging included brand and/or variant name change, often with the inclusion of colour descriptors and brand migrations. Product changes prestandardised packaging included the introduction of novel filters (eg, filters with two flavour-changing capsules, tube filters, firmer filters and filters with granular additives). There was non-compliance with the legislation, with slim packs, which are not permitted, on sale after standardised packaging was implemented. CONCLUSIONS: Our findings highlight the need to monitor developments in markets introducing standardised packaging and have policy implications for countries considering this measure. PMID- 29321274 TI - IRF1 Is a Transcriptional Regulator of ZBP1 Promoting NLRP3 Inflammasome Activation and Cell Death during Influenza Virus Infection. AB - Innate immune sensing of influenza A virus (IAV) induces activation of various immune effector mechanisms, including the nucleotide and oligomerization domain, leucine-rich repeat-containing protein family, pyrin domain containing 3 (NLRP3) inflammasome and programmed cell death pathways. Although type I IFNs are identified as key mediators of inflammatory and cell death responses during IAV infection, the involvement of various IFN-regulated effectors in facilitating these responses are less studied. In this study, we demonstrate the role of IFN regulatory factor (IRF)1 in promoting NLRP3 inflammasome activation and cell death during IAV infection. Both inflammasome-dependent responses and induction of apoptosis and necroptosis are reduced in cells lacking IRF1 infected with IAV. The observed reduction in inflammasome activation and cell death in IRF1 deficient cells during IAV infection correlates with reduced levels of Z-DNA binding protein 1 (ZBP1), a key molecule mediating IAV-induced inflammatory and cell death responses. We further demonstrate IRF1 as a transcriptional regulator of ZBP1. Overall, our study identified IRF1 as an upstream regulator of NLRP3 inflammasome and cell death during IAV infection and further highlights the complex and multilayered regulation of key molecules controlling inflammatory response and cell fate decisions during infections. PMID- 29321275 TI - CD40 Mediates Maturation of Thymic Dendritic Cells Driven by Self-Reactive CD4+ Thymocytes and Supports Development of Natural Regulatory T Cells. AB - Thymic dendritic cells (tDCs) play an important role in central tolerance by eliminating self-reactive thymocytes or differentiating them to regulatory T (Treg) cells. However, the molecular and cellular mechanisms underlying these functions are not completely understood. We found that mouse tDCs undergo maturation following cognate interaction with self-reactive CD4+ thymocytes and that this maturation is dependent on CD40 signaling. Ablation of CD40 expression in tDCs resulted in a significant reduction in the number of Treg cells in association with a significant reduction in the number of mature tDCs. In addition, CD40-deficient DCs failed to fully mature upon cognate interaction with CD4+ thymocytes in vitro and failed to differentiate them into Treg cells to a sufficient number. These findings suggest that tDCs mature and potentiate Treg cell development in feedback response to self-reactive CD4+ thymocytes. PMID- 29321276 TI - IFN Regulatory Factor 3 Balances Th1 and T Follicular Helper Immunity during Nonlethal Blood-Stage Plasmodium Infection. AB - Differentiation of CD4+ Th cells is critical for immunity to malaria. Several innate immune signaling pathways have been implicated in the detection of blood stage Plasmodium parasites, yet their influence over Th cell immunity remains unclear. In this study, we used Plasmodium-reactive TCR transgenic CD4+ T cells, termed PbTII cells, during nonlethal P. chabaudi chabaudi AS and P. yoelii 17XNL infection in mice, to examine Th cell development in vivo. We found no role for caspase1/11, stimulator of IFN genes, or mitochondrial antiviral-signaling protein, and only modest roles for MyD88 and TRIF-dependent signaling in controlling PbTII cell expansion. In contrast, IFN regulatory factor 3 (IRF3) was important for supporting PbTII expansion, promoting Th1 over T follicular helper (Tfh) differentiation, and controlling parasites during the first week of infection. IRF3 was not required for early priming by conventional dendritic cells, but was essential for promoting CXCL9 and MHC class II expression by inflammatory monocytes that supported PbTII responses in the spleen. Thereafter, IRF3-deficiency boosted Tfh responses, germinal center B cell and memory B cell development, parasite-specific Ab production, and resolution of infection. We also noted a B cell-intrinsic role for IRF3 in regulating humoral immune responses. Thus, we revealed roles for IRF3 in balancing Th1- and Tfh-dependent immunity during nonlethal infection with blood-stage Plasmodium parasites. PMID- 29321277 TI - Intrathymic Deletion of IL-7 Reveals a Contribution of the Bone Marrow to Thymic Rebound Induced by Androgen Blockade. AB - Despite the well-documented effect of castration in thymic regeneration, the singular contribution of the bone marrow (BM) versus the thymus to this process remains unclear. The chief role of IL-7 in pre- and intrathymic stages of T lymphopoiesis led us to investigate the impact of disrupting this cytokine during thymic rebound induced by androgen blockade. We found that castration promoted thymopoiesis in young and aged wild-type mice. In contrast, only young germline IL-7-deficient (Il7-/- ) mice consistently augmented thymopoiesis after castration. The increase in T cell production was accompanied by the expansion of the sparse medullary thymic epithelial cell and the peripheral T cell compartment in young Il7-/- mice. In contrast to young Il7-/- and wild-type mice, the poor thymic response of aged Il7-/- mice after castration was associated with a defect in the expansion of BM hematopoietic progenitors. These findings suggest that BM derived T cell precursors contribute to thymic rebound driven by androgen blockade. To assess the role of IL-7 within the thymus, we generated mice with conditional deletion of IL-7 (Il7 conditional knockout [cKO]) in thymic epithelial cells. As expected, Il7cKO mice presented a profound defect in T cell development while maintaining an intact BM hematopoietic compartment across life. Unlike Il7-/- mice, castration promoted the expansion of BM precursors and enhanced thymic activity in Il7cKO mice independently of age. Our findings suggest that the mobilization of BM precursors acts as a prime catalyst of castration-driven thymopoiesis. PMID- 29321278 TI - Spemann-Mangold Grafts. AB - In 1924, Hans Spemann and Hilde Mangold (nee Proscholdt) published their famous work describing the transplantation of dorsal blastopore lip of one newt gastrula embryo onto the ventral side of a host embryo at the same stage. They performed these grafts using two newt species with different pigmentation (Triturus taeniatus and Triturus cristatus) to follow the fate of the grafted tissue. These experiments resulted in the development of conjoined twins attached through their belly. Because of the difference in embryo pigmentation between the two Triturus species, they determined that the bulk of the secondary embryo arose from the host embryo while the grafted tissue per se gave increase to the notochord and a few somitic cells. This meant that the dorsal blastopore lip was able to organize an almost complete embryo out of ventral tissue. The dorsal blastopore lip is now called the Spemann-Mangold organizer. Here, we describe a simple yet efficient protocol to perform these grafts using the anuran Xenopus laevis. PMID- 29321279 TI - Whole-Mount Immunofluorescence for Visualizing Endogenous Protein and Injected RNA in Xenopus Oocytes. AB - Asymmetric distribution of mRNA and protein is a hallmark of cell polarity in many systems. The Xenopus laevis oocyte provides many technical advantages to studying such polarity. Thousands of oocytes at different stages of maturity can be harvested from a single ovary and, owing to their relatively large size, even the youngest oocytes can be manually microinjected. Microinjection of fluorescently labeled RNA combined with immunofluorescence of endogenous proteins can provide insight into the cytoplasmic interactions contributing to polarity. Here, we present an updated method to image endogenous protein and microinjected RNA in X. laevis oocytes. PMID- 29321280 TI - Analysis of Mitotic Checkpoint Function in Xenopus Egg Extracts. AB - Accurate sister chromatid segregation is pivotal in the faithful transmission of genetic information during each cell division. To ensure accurate segregation, eukaryotic organisms have evolved a "mitotic (or spindle assembly) checkpoint" to prevent premature advance to anaphase before successful attachment of every chromosome to the microtubules of the mitotic spindle. An unattached kinetochore generates a diffusible signal that inhibits ubiquitination of substrates such as cyclin B and securins. This protocol presents an in vitro assay for studying the mitotic checkpoint using Xenopus laevis egg extracts. Meiotic spindles assembled around nuclei added to egg extracts are synchronized at metaphase by an endogenous activity known as cytostatic factor (CSF). Normally, the mitotic checkpoint results in continued metaphase arrest following inactivation of CSF activity (by addition of calcium) and disassembly of spindle microtubules (with a microtubule inhibitor such as nocodazole). Simple DAPI staining for chromatin structure or biochemical analysis of Cdc2/cyclin B (cyclin-dependent kinase) histone H1 kinase activity can be used to evaluate the stages of the cell cycle and the status of the mitotic checkpoint. This cell-free system derived from Xenopus eggs has been successfully used to unravel the mechanisms of mitosis, and it provides a distinct advantage over cell-based studies in which perturbing kinetochore functions often results in lethality. PMID- 29321281 TI - Dissecting Protein Complexes in Branching Microtubule Nucleation Using Meiotic Xenopus Egg Extracts. AB - The mitotic spindle is the microtubule-based apparatus that reliably segregates chromosomes during cell division. Recently, it was discovered that microtubules originate within the mitotic spindle by nucleating off of existing spindle microtubules. This mechanism, termed branching microtubule nucleation, allows the efficient amplification of microtubules while preserving their original polarity as required in the spindle. Three molecular players are known to be involved in this process, namely, the protein TPX2, the protein complex augmin, and the gamma tubulin ring complex; however, little is known about the assembly of the protein complexes. Here, we use the eight-subunit augmin complex as an example of how to dissect the function and assembly of a protein complex using meiotic Xenopus egg extracts. Specifically, immunodepletion combined with total internal reflection fluorescence (TIRF) microscopy is used to identify the role of the protein complex. In parallel, immunoprecipitation (IP) and tandem mass spectrometry (MS/MS) are used to infer how it is assembled. This approach can be applied to investigate the assembly of other multisubunit protein complexes that function in branching microtubule nucleation and mitotic spindle assembly. PMID- 29321282 TI - Nucleus Assembly and Import in Xenopus laevis Egg Extract. AB - Xenopus egg extract represents a powerful cell-free biochemical tool for studying organelle assembly and function. Large quantities of cytoplasm can be isolated, and biochemical manipulation of extract composition and cell cycle state is relatively straightforward. In this protocol, we describe the reconstitution of nuclear assembly by adding a chromatin source to interphasic X. laevis egg extract. Intact nuclei assemble within 30-45 min of initiating the reaction, followed by nuclear growth. We also describe methods for imaging and quantifying nuclear import kinetics. Recombinant proteins or small molecules of interest can be added to the extract before or after nuclear assembly, and immunodepletion allows for removal of specific proteins from the extract. This approach will continue to inform mechanisms of nuclear assembly, nuclear pore complex assembly and function, nucleocytoplasmic transport, DNA replication, nuclear envelope breakdown, and nuclear size and shape regulation. PMID- 29321283 TI - Cranial Neural Crest Explants. AB - The cranial neural crest (CNC) explant assay was originally designed to assess the basic requirements for CNC migration in vitro. This protocol describes the key parameters of CNC explants in Xenopus laevis, with a focus on how to extirpate CNC cells and assay their migration in vitro. The protocol can be adapted according to the needs of the experimenter, some examples of which are discussed here. PMID- 29321284 TI - Microinjection of Xenopus Oocytes. AB - Microinjection of Xenopus oocytes has proven to be a valuable tool in a broad array of studies that require expression of DNA or RNA into functional protein. These studies are diverse and range from expression cloning to receptor-ligand interaction to nuclear programming. Oocytes offer a number of advantages for such studies, including their large size (~1.2 mm in diameter), capacity for translation, and enormous nucleus (0.3-0.4 mm). They are cost effective, easily manipulated, and can be injected in large numbers in a short time period. Oocytes have a large maternal stockpile of all the essential components for transcription and translation. Consequently, the investigator needs only to introduce by microinjection the specific DNA or RNA of interest for synthesis. Oocytes translate virtually any exogenous RNA regardless of source, and the translated proteins are folded, modified, and transported to the correct cellular locations. Here we present procedures for the efficient microinjection of oocytes and their subsequent care. PMID- 29321285 TI - Cranial Neural Crest Transplants. AB - The transplantation of cranial neural crest (CNC) expressing green fluorescent protein (GFP) in Xenopus laevis has allowed researchers not only to assess CNC migration in vivo but also to address many other experimental questions. Coupled with loss- or gain-of-function experiments, this technique can be used to characterize the function of specific genes during CNC migration and differentiation. Although targeted injection can also be used to assess gene function during CNC migration, CNC transplantation allows one to answer specific questions, such as whether a gene's function is tissue autonomous, cell autonomous, or exerted in the tissues surrounding the CNC. Here we describe a protocol for performing simple CNC grafts. PMID- 29321286 TI - Oocyte Host-Transfer and Maternal mRNA Depletion Experiments in Xenopus. AB - This protocol details the oocyte host-transfer method in Xenopus, using transplantation by intraperitoneal injection. This approach is suitable for the overexpression of mRNAs and for the use of antisense oligonucleotides to deplete maternal mRNAs, which are not replaced until zygotic genome activation in the mid blastula transition. Xenopus oocyte host-transfer can also be used for highly efficient mutagenesis in the F0 generation by prefertilization injection of genome editing reagents. PMID- 29321287 TI - Isolation of Xenopus Oocytes. AB - Xenopus oocytes and oocyte extracts are the starting material for a variety of experimental approaches. Oocytes are obtained by surgical removal of the ovary from anesthetized females. Although oocytes may be used while they remain within their ovarian follicle, it is more practical to work with defolliculated oocytes. Defolliculation can be performed either manually or enzymatically. Here we present a protocol for the isolation and separation of Xenopus oocytes at various developmental stages, and guidelines for maintaining oocytes in culture. PMID- 29321288 TI - Einsteck Transplants. AB - Einsteck procedure refers to a method whereby the experimenter inserts material into the blastocoel cavity of an early amphibian embryo. This procedure is simpler to perform than other types of grafts, such as Spemann-Mangold, and with practice yields a sizable amount of data suitable for statistical analysis. This protocol for Einsteck transplantation in Xenopus describes the insertion of the gastrula-stage blastopore lip into the blastocoel cavity of a host embryo. PMID- 29321289 TI - Connecting to ecology: a challenge for comparative physiologists? Response to 'Oxygen- and capacity-limited thermal tolerance: blurring ecology and physiology'. PMID- 29321290 TI - Early-career researchers: an interview with Brooke Flammang. AB - Brooke Flammang is an Assistant Professor at the New Jersey Institute of Technology, where she investigates how organisms interact with their environment and how these interactions drive the evolutionary selection of morphology and function. She received her Bachelor's degree in Marine Biology from Fairleigh Dickinson University before moving to Moss Landing Marine Laboratories for her Master's degree and completing her PhD with George Lauder at Harvard University in 2010. She was awarded the Dorothy H. Skinner award in 2013 and the Carl Gans award in 2017 by the Society for Integrative and Comparative Biology. PMID- 29321291 TI - Oxygen- and capacity-limited thermal tolerance: blurring ecology and physiology. PMID- 29321292 TI - Atlantic bluefin tuna spawn at suboptimal temperatures for their offspring. AB - Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms' annual routines. In this study we analyse how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites, suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology. We combine evidence from long-term field data, temperature-controlled rearing experiments on eggs and larvae, and a model of egg fitness, and show that Atlantic bluefin tuna do not spawn to optimize egg and larval temperature exposure. The timing of spawning leads to temperature exposure considerably lower than optimal at all spawning grounds across the Atlantic Ocean. The early spawning is constrained by thermal inhibition of egg hatching and larval growth rates, but some other factors must prevent later spawning. Matching offspring with ocean productivity and the prey peak might be an important driver for bluefin tuna spawning phenology. This finding is important for predictions of reproductive timing in future climate warming scenarios for bluefin tuna. PMID- 29321293 TI - Individual variation in reproductive behaviour is linked to temporal heterogeneity in predation risk. AB - Variation in predation risk is a major driver of ecological and evolutionary change, and, in turn, of geographical variation in behaviour. While predation risk is rarely constant in natural populations, the extent to which variation in predation risk shapes individual behaviour in wild populations remains unclear. Here, we investigated individual differences in reproductive behaviour in 16 Trinidadian guppy populations and related it to the observed variation in predator biomass each population experienced. Our results show that high heterogeneity in predator biomass is linked to individual behavioural diversification. Increased within-population heterogeneity in predator biomass is also associated with behavioural polymorphism. Some individuals adjust the frequency of consensual mating behaviour in response to differences in sex ratio context, while others display constantly at elevated frequencies. This pattern is analogous to a 'live fast, die young' pace-of-life syndrome. Notably, both high and low mean differences in predator biomass led to a homogenization of individual frequency of consensual mating displays. Overall, our results demonstrate that individual behavioural variation is associated with heterogeneity in predator biomass, but not necessarily with changes in mean values of predator biomass. We suggest that heterogeneity in predator biomass is an informative predictor of adaptive responses to changes in biotic conditions. PMID- 29321294 TI - Model recommendations meet management reality: implementation and evaluation of a network-informed vaccination effort for endangered Hawaiian monk seals. AB - Where disease threatens endangered wildlife populations, substantial resources are required for management actions such as vaccination. While network models provide a promising tool for identifying key spreaders and prioritizing efforts to maximize efficiency, population-scale vaccination remains rare, providing few opportunities to evaluate performance of model-informed strategies under realistic scenarios. Because the endangered Hawaiian monk seal could be heavily impacted by disease threats such as morbillivirus, we implemented a prophylactic vaccination programme. We used contact networks to prioritize vaccinating animals with high contact rates. We used dynamic network models to simulate morbillivirus outbreaks under real and idealized vaccination scenarios. We then evaluated the efficacy of model recommendations in this real-world vaccination project. We found that deviating from the model recommendations decreased the efficiency; requiring 44% more vaccinations to achieve a given decrease in outbreak size. However, we gained protection more quickly by vaccinating available animals rather than waiting to encounter priority seals. This work demonstrates the value of network models, but also makes trade-offs clear. If vaccines were limited but time was ample, vaccinating only priority animals would maximize herd protection. However, where time is the limiting factor, vaccinating additional lower-priority animals could more quickly protect the population. PMID- 29321295 TI - Direct and indirect effects of early-life environment on lifetime fitness of bighorn ewes. AB - Cohort effects, when a common environment affects long-term performance, can have a major impact on population dynamics. Very few studies of wild animals have obtained the necessary data to study the mechanisms leading to cohort effects. We exploited 42 years of individual-based data on bighorn sheep to test for causal links between birth density, body mass, age at first reproduction (AFR), longevity and lifetime reproductive success (LRS) using path analysis. Specifically, we investigated whether the effect of early-life environment on lifetime fitness was the result of indirect effects through body mass or direct effects of early-life environment on fitness. Additionally, we evaluated whether the effects of early-life environment were dependant on the environment experienced during adulthood. Contrary to expectation, the effect on LRS mediated through body mass was weak compared to the effects found via a delay in AFR, reduced longevity and the direct effect of birth density. Birth density also had an important indirect effect on LRS through reduced longevity, but only when adult density was high. Our results show that the potential long-term consequences of a harsh early-life environment on fitness are likely to be underestimated if investigations are limited to body mass instead of fitness at several life stages, or if the interactions between past and present environment are ignored. PMID- 29321296 TI - Substrate growth dynamics and biomineralization of an Ediacaran encrusting poriferan. AB - The ability to encrust in order to secure and maintain growth on a substrate is a key competitive innovation in benthic metazoans. Here we describe the substrate growth dynamics, mode of biomineralization and possible affinity of Namapoikia rietoogensis, a large (up to 1 m), robustly skeletal, and modular Ediacaran metazoan which encrusted the walls of synsedimentary fissures within microbial metazoan reefs. Namapoikia formed laminar or domal morphologies with an internal structure of open tubules and transverse elements, and had a very plastic, non deterministic growth form which could encrust both fully lithified surfaces as well as living microbial substrates, the latter via modified skeletal holdfasts. Namapoikia shows complex growth interactions and substrate competition with contemporary living microbialites and thrombolites, including the production of plate-like dissepiments in response to microbial overgrowth which served to elevate soft tissue above the microbial surface. Namapoikia could also recover from partial mortality due to microbial fouling. We infer initial skeletal growth to have propagated via the rapid formation of an organic scaffold via a basal pinacoderm prior to calcification. This is likely an ancient mode of biomineralization with similarities to the living calcified demosponge Vaceletia. Namapoikia also shows inferred skeletal growth banding which, combined with its large size, implies notable individual longevity. In sum, Namapoikia was a large, relatively long-lived Ediacaran clonal skeletal metazoan that propagated via an organic scaffold prior to calcification, enabling rapid, effective and dynamic substrate occupation and competition in cryptic reef settings. The open tubular internal structure, highly flexible, non-deterministic skeletal organization, and inferred style of biomineralization of Namapoikia places probable affinity within total-group poriferans. PMID- 29321297 TI - Gradual plasticity alters population dynamics in variable environments: thermal acclimation in the green alga Chlamydomonas reinhartdii. AB - Environmental variability is ubiquitous, but its effects on populations are not fully understood or predictable. Recent attention has focused on how rapid evolution can impact ecological dynamics via adaptive trait change. However, the impact of trait change arising from plastic responses has received less attention, and is often assumed to optimize performance and unfold on a separate, faster timescale than ecological dynamics. Challenging these assumptions, we propose that gradual plasticity is important for ecological dynamics, and present a study of the plastic responses of the freshwater green algae Chlamydomonas reinhardtii as it acclimates to temperature changes. First, we show that C. reinhardtii's gradual acclimation responses can both enhance and suppress its performance after a perturbation, depending on its prior thermal history. Second, we demonstrate that where conventional approaches fail to predict the population dynamics of C. reinhardtii exposed to temperature fluctuations, a new model of gradual acclimation succeeds. Finally, using high-resolution data, we show that phytoplankton in lake ecosystems can experience thermal variation sufficient to make acclimation relevant. These results challenge prevailing assumptions about plasticity's interactions with ecological dynamics. Amidst the current emphasis on rapid evolution, it is critical that we also develop predictive methods accounting for plasticity. PMID- 29321298 TI - The worldwide importance of honey bees as pollinators in natural habitats. AB - The western honey bee (Apis mellifera) is the most frequent floral visitor of crops worldwide, but quantitative knowledge of its role as a pollinator outside of managed habitats is largely lacking. Here we use a global dataset of 80 published plant-pollinator interaction networks as well as pollinator effectiveness measures from 34 plant species to assess the importance of A. mellifera in natural habitats. Apis mellifera is the most frequent floral visitor in natural habitats worldwide, averaging 13% of floral visits across all networks (range 0-85%), with 5% of plant species recorded as being exclusively visited by A. mellifera For 33% of the networks and 49% of plant species, however, A. mellifera visitation was never observed, illustrating that many flowering plant taxa and assemblages remain dependent on non-A. mellifera visitors for pollination. Apis mellifera visitation was higher in warmer, less variable climates and on mainland rather than island sites, but did not differ between its native and introduced ranges. With respect to single-visit pollination effectiveness, A. mellifera did not differ from the average non-A. mellifera floral visitor, though it was generally less effective than the most effective non-A. mellifera visitor. Our results argue for a deeper understanding of how A. mellifera, and potential future changes in its range and abundance, shape the ecology, evolution, and conservation of plants, pollinators, and their interactions in natural habitats. PMID- 29321299 TI - Host size and proximity to diseased neighbours drive the spread of a coral disease outbreak in Hawai'i. AB - Understanding how disease risk varies over time and across heterogeneous populations is critical for managing disease outbreaks, but this information is rarely known for wildlife diseases. Here, we demonstrate that variation in host and pathogen factors drive the direction, duration and intensity of a coral disease outbreak. We collected longitudinal health data for 200 coral colonies, and found that disease risk increased with host size and severity of diseased neighbours, and disease spread was highest among individuals between 5 and 20 m apart. Disease risk increased by 2% with every 10 cm increase in host size. Healthy colonies with severely diseased neighbours (greater than 75% affected tissue) were 1.6 times more likely to develop disease signs compared with colonies with moderately diseased neighbours (25-75% affected tissue). Force of infection ranged from 7 to 20 disease cases per 1000 colonies (mean = 15 cases per 1000 colonies). The effective reproductive ratio, or average number of secondary infections per infectious individual, ranged from 0.16 to 1.22. Probability of transmission depended strongly on proximity to diseased neighbours, which demonstrates that marine disease spread can be highly constrained within patch reefs. PMID- 29321300 TI - Tetrapod distribution and temperature rise during the Permian-Triassic mass extinction. AB - The Permian-Triassic mass extinction (PTME) had an enormous impact on life in three ways: by substantially reducing diversity, by reshuffling the composition of ecosystems and by expelling life from the tropics following episodes of intense global warming. But was there really an 'equatorial tetrapod gap', and how long did it last? Here, we consider both skeletal and footprint data, and find a more complex pattern: (i) tetrapods were distributed both at high and low latitudes during this time; (ii) there was a clear geographic disjunction through the PTME, with tetrapod distribution shifting 10-15 degrees poleward; and (iii) there was a rapid expansion phase across the whole of Pangea following the PTME. These changes are consistent with a model of generalized migration of tetrapods to higher latitudinal, cooler regions, to escape from the superhot equatorial climate in the earliest Triassic, but the effect was shorter in time scale, and not as pronounced as had been proposed. In the recovery phase following the PTME, this episode of forced range expansion also appears to have promoted the emergence and radiation of entirely new groups, such as the archosaurs, including the dinosaurs. PMID- 29321301 TI - Plasmid stability is enhanced by higher-frequency pulses of positive selection. AB - Plasmids accelerate bacterial adaptation by sharing ecologically important traits between lineages. However, explaining plasmid stability in bacterial populations is challenging owing to their associated costs. Previous theoretical and experimental studies suggest that pulsed positive selection may explain plasmid stability by favouring gene mobility and promoting compensatory evolution to ameliorate plasmid cost. Here we test how the frequency of pulsed positive selection affected the dynamics of a mercury-resistance plasmid, pQBR103, in experimental populations of Pseudomonas fluorescens SBW25. Plasmid dynamics varied according to the frequency of Hg2+ positive selection: in the absence of Hg2+ plasmids declined to low frequency, whereas pulses of Hg2+ selection allowed plasmids to sweep to high prevalence. Compensatory evolution to ameliorate the cost of plasmid carriage was widespread across the entire range of Hg2+ selection regimes, including both constant and pulsed Hg2+ selection. Consistent with theoretical predictions, gene mobility via conjugation appeared to play a greater role in promoting plasmid stability under low-frequency pulses of Hg2+ selection. However, upon removal of Hg2+ selection, plasmids which had evolved under low frequency pulse selective regimes declined over time. Our findings suggest that temporally variable selection environments, such as those created during antibiotic treatments, may help to explain the stability of mobile plasmid encoded resistance. PMID- 29321302 TI - Rapid seasonal evolution in innate immunity of wild Drosophila melanogaster. AB - Understanding the rate of evolutionary change and the genetic architecture that facilitates rapid adaptation is a current challenge in evolutionary biology. Comparative studies show that genes with immune function are among the most rapidly evolving genes across a range of taxa. Here, we use immune defence in natural populations of Drosophila melanogaster to understand the rate of evolution in natural populations and the genetics underlying rapid change. We probed the immune system using the natural pathogens Enterococcus faecalis and Providencia rettgeri to measure post-infection survival and bacterial load of wild D. melanogaster populations collected across seasonal time along a latitudinal transect along eastern North America (Massachusetts, Pennsylvania and Virginia). There are pronounced and repeatable changes in the immune response over the approximately 10 generations between spring and autumn collections, with a significant but less distinct difference observed among geographical locations. Genes with known immune function are not enriched among alleles that cycle with seasonal time, but the immune function of a subset of seasonally cycling alleles in immune genes was tested using reconstructed outbred populations. We find that flies containing seasonal alleles in Thioester-containing protein 3 (Tep3) have different functional responses to infection and that epistatic interactions among seasonal Tep3 and Drosomycin-like 6 (Dro6) alleles underlie the immune phenotypes observed in natural populations. This rapid, cyclic response to seasonal environmental pressure broadens our understanding of the complex ecological and genetic interactions determining the evolution of immune defence in natural populations. PMID- 29321303 TI - Infection and Replication of Influenza Virus at the Ocular Surface. AB - Although influenza viruses typically cause respiratory tract disease, some viruses, particularly those with an H7 hemagglutinin, have been isolated from the eyes of conjunctivitis cases. Previous work has shown that isolates of multiple subtypes from both ocular and respiratory infections are capable of replication in human ex vivo ocular tissues and corneal or conjunctival cell monolayers, leaving the determinants of ocular tropism unclear. Here, we evaluated the effect of several variables on tropism for ocular cells cultured in vitro and examined the potential effect of the tear film on viral infectivity. All viruses tested were able to replicate in primary human corneal epithelial cell monolayers subjected to aerosol inoculation. The temperature at which cells were cultured postinoculation minimally affected infectivity. Replication efficiency, in contrast, was reduced at 33 degrees C relative to that at 37 degrees C, and this effect was slightly greater for the conjunctivitis isolates than for the respiratory ones. With the exception of a seasonal H3N2 virus, the subset of viruses studied in multilayer corneal tissue constructs also replicated productively after either aerosol or liquid inoculation. Human tears significantly inhibited the hemagglutination of both ocular and nonocular isolates, but the effect on viral infectivity was more variable, with tears reducing the infectivity of nonocular isolates more than ocular isolates. These data suggest that most influenza viruses may be capable of establishing infection if they reach the surface of ocular cells but that this is more likely for ocular tropic viruses, as they are better able to maintain their infectivity during passage through the tear film.IMPORTANCE The potential spread of zoonotic influenza viruses to humans represents an important threat to public health. Unfortunately, despite the importance of cellular and tissue tropism to pathogenesis, determinants of influenza virus tropism have yet to be fully elucidated. Here, we sought to identify factors that limit the ability of most influenza viruses to cause ocular infection. Although ocular symptoms in humans caused by avian influenza viruses tend to be relatively mild, these infections are concerning due to the potential of the ocular surface to serve as a portal of entry for viruses that go on to establish respiratory infections. Furthermore, a better understanding of the factors that influence infection and replication in this noncanonical site may point toward novel determinants of tropism in the respiratory tract. PMID- 29321304 TI - Determinants in the Ig Variable Domain of Human HAVCR1 (TIM-1) Are Required To Enhance Hepatitis C Virus Entry. AB - Hepatitis C virus (HCV) is the leading cause of chronic hepatitis in humans. Several host molecules participate in HCV cell entry, but this process remains unclear. The complete unraveling of the HCV entry process is important to further understand viral pathogenesis and develop therapeutics. Human hepatitis A virus (HAV) cellular receptor 1 (HAVCR1), CD365, also known as TIM-1, functions as a phospholipid receptor involved in cell entry of several enveloped viruses. Here, we studied the role of HAVCR1 in HCV infection. HAVCR1 antibody inhibited entry in a dose-dependent manner. HAVCR1 soluble constructs neutralized HCV, which did not require the HAVCR1 mucinlike region and was abrogated by a mutation of N to A at position 94 (N94A) in the Ig variable (IgV) domain phospholipid-binding pocket, indicating a direct interaction of the HAVCR1 IgV domain with HCV virions. However, knockout of HAVCR1 in Huh7 cells reduced but did not prevent HCV growth. Interestingly, the mouse HAVCR1 ortholog, also a phospholipid receptor, did not enhance infection and a soluble form failed to neutralize HCV, although replacement of the mouse IgV domain with the human HAVCR1 IgV domain restored the enhancement of HCV infection. Mutations in the cytoplasmic tail revealed that direct HAVCR1 signaling is not required to enhance HCV infection. Our data show that the phospholipid-binding function and other determinant(s) in the IgV domain of human HAVCR1 enhance HCV infection. Although the exact mechanism is not known, it is possible that HAVCR1 facilitates entry by stabilizing or enhancing attachment, leading to direct interactions with specific receptors, such as CD81.IMPORTANCE Hepatitis C virus (HCV) enters cells through a multifaceted process. We identified the human hepatitis A virus cellular receptor 1 (HAVCR1), CD365, also known as TIM-1, as a facilitator of HCV entry. Antibody blocking and silencing or knockout of HAVCR1 in hepatoma cells reduced HCV entry. Our findings that the interaction of HAVCR1 with HCV early during infection enhances entry but is not required for infection support the hypothesis that HAVCR1 facilitates entry by stabilizing or enhancing virus binding to the cell surface membrane and allowing the correct virus-receptor positioning for interaction with the main HCV receptors. Furthermore, our data show that in addition to the phospholipid-binding function of HAVCR1, the enhancement of HCV infection involves other determinants in the IgV domain of HAVCR1. These findings expand the repertoire of molecules that HCV uses for cell entry, adding to the already complex mechanism of HCV infection and pathogenesis. PMID- 29321305 TI - Arabidopsis RNA Polymerase V Mediates Enhanced Compaction and Silencing of Geminivirus and Transposon Chromatin during Host Recovery from Infection. AB - Plants employ RNA-directed DNA methylation (RdDM) and dimethylation of histone 3 lysine 9 (H3K9me2) to silence geminiviruses and transposable elements (TEs). We previously showed that canonical RdDM (Pol IV-RdDM) involving RNA polymerases IV and V (Pol IV and Pol V) is required for Arabidopsis thaliana to recover from infection with Beet curly top virus lacking a suppressor protein that inhibits methylation (BCTV L2-). Recovery, which is characterized by reduced viral DNA levels and symptom remission, allows normal floral development. Here, we used formaldehyde-assisted isolation of regulatory elements (FAIRE) to confirm that >90% of BCTV L2- chromatin is highly compacted during recovery, and a micrococcal nuclease-chromatin immunoprecipitation assay showed that this is largely due to increased nucleosome occupancy. Physical compaction correlated with augmented cytosine and H3K9 methylation and with reduced viral gene expression. We additionally demonstrated that these phenomena are dependent on Pol V and by extension the Pol IV-RdDM pathway. BCTV L2- was also used to evaluate the impact of viral infection on host loci, including repressed retrotransposons Ta3 and Athila6A Remarkably, an unexpected Pol V-dependent hypersuppression of these TEs was observed, resulting in transcript levels even lower than those detected in uninfected plants. Hypersuppression is likely to be especially important for natural recovery from wild-type geminiviruses, as viral L2 and AL2 proteins cause ectopic TE expression. Thus, Pol IV-RdDM targets both viral and TE chromatin during recovery, simultaneously silencing the majority of viral genomes and maintaining host genome integrity by enforcing tighter control of TEs in future reproductive tissues.IMPORTANCE In plants, RdDM pathways use small RNAs to target cytosine and H3K9 methylation, thereby silencing DNA virus genomes and transposable elements (TEs). Further, Pol IV-RdDM involving Pol IV and Pol V is a key aspect of host defense that can lead to recovery from geminivirus infection. Recovery is characterized by reduced viral DNA levels and symptom remission and thus allows normal floral development. Studies described here demonstrate that the Pol V-dependent enhanced viral DNA and histone methylation observed during recovery result in increased chromatin compaction and suppressed gene expression. In addition, we show that TE-associated chromatin is also targeted for hypersuppression during recovery, such that TE transcripts are reduced below the already low levels seen in uninfected plants. Thus, Pol IV-RdDM at once silences the majority of viral genomes and enforces a tight control over TEs which might otherwise jeopardize genome integrity in future reproductive tissue. PMID- 29321306 TI - Digitoxin Suppresses Human Cytomegalovirus Replication via Na+, K+/ATPase alpha1 Subunit-Dependent AMP-Activated Protein Kinase and Autophagy Activation. AB - Host-directed therapeutics for human cytomegalovirus (HCMV) requires elucidation of cellular mechanisms that inhibit HCMV. We report a novel pathway used by cardiac glycosides to inhibit HCMV replication: induction of AMP-activated protein kinase (AMPK) activity and autophagy flux through the Na+,K+/ATPase alpha1 subunit. Our data illustrate an intricate balance between the autophagy regulators AMPK, mammalian target of rapamycin (mTOR), and ULK1 during infection and treatment with the cardiac glycoside digitoxin. Both infection and digitoxin induced AMPK phosphorylation, but ULK1 was differentially phosphorylated at unique sites leading to opposing effects on autophagy. Suppression of autophagy during infection occurred via ULK1 phosphorylation at Ser757 by enhanced mTOR activity. Digitoxin continuously phosphorylated AMPK, leading to ULK1 phosphorylation at Ser317, and suppressed mTOR, resulting in increased autophagy flux and HCMV inhibition. In ATG5-deficient human fibroblasts, digitoxin did not inhibit HCMV, supporting autophagy induction as a mechanism for virus inhibition. Drug combination studies with digitoxin and 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR) further confirmed the role of autophagy activation in HCMV inhibition. Individually, each compound phosphorylated AMPK, but their combination reduced autophagy rather than inducing it and was antagonistic against HCMV, resulting in virus replication. The initial ULK1 activation by digitoxin was counteracted by AICAR, which prevented the downstream interaction of Beclin1 and phosphatidylinositol 3-kinase class III (PI3K-CIII), further supporting digitoxin-mediated HCMV inhibition through autophagy. Finally, the alpha1 subunit was required for autophagy induction, since in alpha1-deficient cells neither AMPK nor autophagy was activated and HCMV was not inhibited by digitoxin. In summary, induction of a novel pathway (alpha1-AMPK-ULK1) induces autophagy as a host-directed strategy for HCMV inhibition.IMPORTANCE Infection with human cytomegalovirus (HCMV) creates therapeutic challenges in congenitally infected children and transplant recipients. Side effects and selection of resistant mutants with the limited drugs available prompted evaluation of host directed therapeutics. We report a novel mechanism of HCMV inhibition by the cardiac glycoside digitoxin. At low concentrations that inhibit HCMV, digitoxin induced signaling through the alpha1 subunit of the Na+,K+/ATPase pump and the cellular kinase AMPK, resulting in binding and phosphorylation of ULK1 (Ser317) and autophagy activation. HCMV suppressed autophagy through ULK1 phosphorylation (Ser757) by activating the mTOR kinase. The pump-autophagy pathway was required for HCMV inhibition, since in alpha1- or ATG5-deficient cells the virus was not inhibited. Furthermore, the AMPK activator AICAR antagonized digitoxin activity against HCMV, a phenomenon resulting from opposing effects downstream in the autophagy pathway, at the Beclin1 stage. In summary, autophagy may provide a strategy for harnessing HCMV replication. PMID- 29321307 TI - Kaposi's Sarcoma-Associated Herpesvirus K8 Is an RNA Binding Protein That Regulates Viral DNA Replication in Coordination with a Noncoding RNA. AB - KSHV lytic replication and constant primary infection of fresh cells are crucial for viral tumorigenicity. Virus-encoded b-Zip family protein K8 plays an important role in viral DNA replication in both viral reactivation and de novo infection. The mechanism underlying the functional role of K8 in the viral life cycle is elusive. Here we report that K8 is a RNA binding protein, which also associates with many proteins including other RNA binding proteins. Many K8 involved protein-protein interactions are mediated by RNA. Using a crosslinking and immunoprecipitation (CLIP) procedure combined with high-throughput sequencing, RNAs that are associated with K8 in BCBL-1 cells were identified, that include both viral (PAN, T1.4, T0.7 and etc.) and cellular (MALAT-1, MRP, 7SK and etc.) RNAs. An RNA-binding motif in K8 was defined, and mutation of the motif abolished the ability of K8 binding to many noncoding RNAs as well as viral DNA replication during de novo infection, suggesting that the K8 functions in viral replication are carried out through RNA association. The function of K8 and associated T1.4 RNA was investigated in details and results showed that T1.4 mediates the binding of K8 with ori-Lyt DNA. T1.4-K8 complex physically bound to KSHV ori-Lyt DNA and recruited other proteins and cofactors to assemble replication complex. Depletion of T1.4 abolished the DNA replication in primary infection. These findings provide mechanistic insights into the role of K8 in coordination with T1.4 RNA in regulating KSHV DNA replication during de novo infection.ImportanceGenome wide analyses of the mammalian transcriptome revealed that a large proportion of sequence previously annotated as noncoding region are actually transcribed and give rise to stable RNAs. Emergence of a large number of noncoding RNAs suggests that functional RNA-protein complexes exampled by ribosome or spliceosome are not ancient relics of the last riboorganism but would be well adapted for regulatory role in biology. K8 has been puzzled by its unique characteristic such as multiple regulatory roles in gene expression and DNA replication without DNA binding capability. This study revealed the mechanism underlying its regulatory role by demonstrating that K8 is an RNA binding protein that binds to DNA and initiate DNA replication in coordination with a noncoding RNA. It is suggested that many of K8 functions, if not all, are carried out through its associated RNAs. PMID- 29321308 TI - Sustained Specific and Cross-Reactive T Cell Responses to Zika and Dengue Virus NS3 in West Africa. AB - Recent studies on the role of T cells in Zika virus (ZIKV) infection have shown that T cell responses to Asian ZIKV infection are important for protection, and that previous dengue virus (DENV) exposure amplifies the protective T cell response to Asian ZIKV. Human T cell responses to African ZIKV infection, however, remain unexplored. Here, we utilized the modified anthrax toxin delivery system to develop a flavivirus enzyme-linked immunosorbent spot (ELISPOT) assay. Using human ZIKV and DENV samples from Senegal, West Africa, our results demonstrate specific and cross-reactive T cell responses to nonstructural protein 3 (NS3). Specifically, we found that T cell responses to NS3 protease are ZIKV and DENV specific, but responses to NS3 helicase are cross-reactive. Sequential sample analyses revealed immune responses sustained many years after infection. These results have important implications for African ZIKV/DENV vaccine development, as well as for potential flavivirus diagnostics based on T cell responses.IMPORTANCE The recent Zika virus (ZIKV) epidemic in Latin America and the associated congenital microcephaly and Guillain-Barre syndrome have raised questions as to why we have not recognized these distinct clinical diseases in Africa. The human immunologic response to ZIKV and related flaviviruses in Africa represents a research gap that may shed light on the mechanisms contributing to protection. The goal of our study was to develop an inexpensive assay to detect and characterize the T cell response to African ZIKV and DENV. Our data show long term specific and cross-reactive human immune responses against African ZIKV and DENV, suggesting the usefulness of a diagnostic based on the T cell response. Additionally, we show that prior flavivirus exposure influences the magnitude of the T cell response. The identification of immune responses to African ZIKV and DENV is of relevance to vaccine development. PMID- 29321309 TI - Specific Mutations in the PB2 Protein of Influenza A Virus Compensate for the Lack of Efficient Interferon Antagonism of the NS1 Protein of Bat Influenza A Like Viruses. AB - Recently, two new influenza A-like viruses have been discovered in bats, A/little yellow-shouldered bat/Guatemala/060/2010 (HL17NL10) and A/flat-faced bat/Peru/033/2010 (HL18NL11). The hemagglutinin (HA)-like (HL) and neuraminidase (NA)-like (NL) proteins of these viruses lack hemagglutination and neuraminidase activities, despite their sequence and structural homologies with the HA and NA proteins of conventional influenza A viruses. We have now investigated whether the NS1 proteins of the HL17NL10 and HL18NL11 viruses can functionally replace the NS1 protein of a conventional influenza A virus. For this purpose, we generated recombinant influenza A/Puerto Rico/8/1934 (PR8) H1N1 viruses containing the NS1 protein of the PR8 wild-type, HL17NL10, and HL18NL11 viruses. These viruses (r/NS1PR8, r/NS1HL17, and r/NS1HL18, respectively) were tested for replication in bat and nonbat mammalian cells and in mice. Our results demonstrate that the r/NS1HL17 and r/NS1HL18 viruses are attenuated in vitro and in vivo However, the bat NS1 recombinant viruses showed a phenotype similar to that of the r/NS1PR8 virus in STAT1-/- human A549 cells and mice, both in vitro and in vivo systems being unable to respond to interferon (IFN). Interestingly, multiple mouse passages of the r/NS1HL17 and r/NS1HL18 viruses resulted in selection of mutant viruses containing single amino acid mutations in the viral PB2 protein. In contrast to the parental viruses, virulence and IFN antagonism were restored in the selected PB2 mutants. Our results indicate that the NS1 protein of bat influenza A-like viruses is less efficient than the NS1 protein of its conventional influenza A virus NS1 counterpart in antagonizing the IFN response and that this deficiency can be overcome by the influenza virus PB2 protein.IMPORTANCE Significant gaps in our understanding of the basic features of the recently discovered bat influenza A-like viruses HL17NL10 and HL18NL11 remain. The basic biology of these unique viruses displays both similarities to and differences from the basic biology of conventional influenza A viruses. Here, we show that recombinant influenza A viruses containing the NS1 protein from HL17NL10 and HL18NL11 are attenuated. This attenuation was mediated by their inability to antagonize the type I IFN response. However, this deficiency could be compensated for by single amino acid replacements in the PB2 gene. Our results unravel a functional divergence between the NS1 proteins of bat influenza A-like and conventional influenza A viruses and demonstrate an interplay between the viral PB2 and NS1 proteins to antagonize IFN. PMID- 29321310 TI - Therapeutic Efficacy of Vectored PGT121 Gene Delivery in HIV-1-Infected Humanized Mice. AB - Broadly neutralizing antibodies (bNAbs) are being explored for HIV-1 prevention and cure strategies. However, administration of purified bNAbs poses challenges in resource-poor settings, where the HIV-1 disease burden is greatest. In vivo vector-based production of bNAbs represents an alternative strategy. We investigated adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 1 (AAV1) vectors to deliver the HIV-1-specific bNAb PGT121 in wild-type and immunocompromised C57BL/6 mice as well as in HIV-1-infected bone marrow-liver thymus (BLT) humanized mice. Ad5.PGT121 and AAV1.PGT121 produced functional antibody in vivo Ad5.PGT121 produced PGT121 rapidly within 6 h, whereas AAV1.PGT121 produced detectable PGT121 in serum by 72 h. Serum PGT121 levels were rapidly reduced by the generation of anti-PGT121 antibodies in immunocompetent mice but were durably maintained in immunocompromised mice. In HIV-1-infected BLT humanized mice, Ad5.PGT121 resulted in a greater reduction of viral loads than did AAV1.PGT121. Ad5.PGT121 also led to more-sustained virologic control than purified PGT121 IgG. Ad5.PGT121 afforded more rapid, robust, and durable antiviral efficacy than AAV1.PGT121 and purified PGT121 IgG in HIV-1-infected humanized mice. Further evaluation of vector delivery of HIV-1 bNAbs is warranted, although approaches to prevent the generation of antiantibody responses may also be required.IMPORTANCE Broadly neutralizing antibodies (bNAbs) are being explored for HIV-1 prevention and cure strategies, but delivery of purified antibodies may prove challenging. We investigated adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 1 (AAV1) vectors to deliver the HIV-1 specific bNAb PGT121. Ad5.PGT121 afforded more rapid, robust, and durable antiviral efficacy than AAV1.PGT121 and purified PGT121 IgG in HIV-1-infected humanized mice. PMID- 29321311 TI - Herpes Simplex Virus 1 Mutant with Point Mutations in UL39 Is Impaired for Acute Viral Replication in Mice, Establishment of Latency, and Explant-Induced Reactivation. AB - In the process of generating herpes simplex virus 1 (HSV-1) mutations in the viral regulatory gene encoding infected cell protein 0 (ICP0), we isolated a viral mutant, termed KOS-NA, that was severely impaired for acute replication in the eyes and trigeminal ganglia (TG) of mice, defective in establishing a latent infection, and reactivated poorly from explanted TG. To identify the secondary mutation(s) responsible for the impaired phenotypes of this mutant, we sequenced the KOS-NA genome and noted that it contained two nonsynonymous mutations in UL39, which encodes the large subunit of ribonucleotide reductase, ICP6. These mutations resulted in lysine-to-proline (residue 393) and arginine-to-histidine (residue 950) substitutions in ICP6. To determine whether alteration of these amino acids was responsible for the KOS-NA phenotypes in vivo, we recombined the wild-type UL39 gene into the KOS-NA genome and rescued its acute replication phenotypes in mice. To further establish the role of UL39 in KOS-NA's decreased pathogenicity, the UL39 mutations were recombined into HSV-1 (generating UL39mut), and this mutant virus showed reduced ocular and TG replication in mice comparable to that of KOS-NA. Interestingly, ICP6 protein levels were reduced in KOS-NA-infected cells relative to the wild-type protein. Moreover, we observed that KOS-NA does not counteract caspase 8-induced apoptosis, unlike wild-type strain KOS. Based on alignment studies with other HSV-1 ICP6 homologs, our data suggest that amino acid 950 of ICP6 likely plays an important role in ICP6 accumulation and inhibition of apoptosis, consequently impairing HSV-1 pathogenesis in a mouse model of HSV-1 infection.IMPORTANCE HSV-1 is a major human pathogen that infects ~80% of the human population and can be life threatening to infected neonates or immunocompromised individuals. Effective therapies for treatment of recurrent HSV-1 infections are limited, which emphasizes a critical need to understand in greater detail the events that modulate HSV-1 replication and pathogenesis. In the current study, we identified a neuroattenuated HSV-1 mutant (i.e., KOS-NA) that contains novel mutations in the UL39 gene, which codes for the large subunit of ribonucleotide reductase (also known as ICP6). This mutant form of ICP6 was responsible for the attenuation of KOS-NA in vivo and resulted in diminished ICP6 protein levels and antiapoptotic effect. Thus, we have determined that subtle alteration of the UL39 gene regulates expression and functions of ICP6 and severely impacts HSV-1 pathogenesis, potentially making KOS-NA a promising vaccine candidate against HSV 1. PMID- 29321312 TI - The E3 Ubiquitin Ligase Siah-1 Suppresses Avian Reovirus Infection by Targeting p10 for Degradation. AB - Avian reovirus (ARV) causes viral arthritis, chronic respiratory diseases, retarded growth, and malabsorption syndrome. The ARV p10 protein, a viroporin responsible for the induction of cell syncytium formation and apoptosis, is rapidly degraded in host cells. Our previous report demonstrated that cellular lysosome-associated membrane protein 1 (LAMP-1) interacted with p10 and was involved in its degradation. However, the molecular mechanism underlying LAMP-1 mediated p10 degradation remains elusive. We report here that the E3 ubiquitin ligase seven in absentia homolog 1 (Siah-1) is critical for p10 ubiquitylation. Our data show that Siah-1 ubiquitylated p10 and targeted it for proteasome degradation. Furthermore, the ubiquitylation of p10 by Siah-1 required the participation of LAMP-1 by forming a multicomponent complex. Thus, LAMP-1 promotes the proteasomal degradation of p10 via interacting with both p10 and the E3 ligase Siah-1. These data establish a novel host defense mechanism where LAMP 1 serves as a scaffold for both Siah-1 and p10 that allows the E3 ligase targeting p10 for ubiquitylation and degradation to suppress ARV infection.IMPORTANCE Avian reovirus (ARV) is an important poultry pathogen causing viral arthritis, chronic respiratory diseases, retarded growth, and malabsorption syndrome, leading to considerable economic losses to the poultry industry across the globe. The ARV p10 protein is a virulence factor responsible for the induction of cell syncytium formation and apoptosis and is rapidly degraded in host cells. We previously found that cellular lysosome-associated membrane protein 1 (LAMP-1) interacts with p10 and is involved in its degradation. Here we report that the E3 ubiquitin ligase seven in absentia homolog 1 (Siah-1) ubiquitylated p10 and targeted it for proteasomal degradation. Furthermore, the ubiquitylation of p10 by Siah-1 required the participation of LAMP-1 by forming a multicomponent complex. Thus, LAMP-1 serves as an adaptor to allow Siah-1 to target p10 for degradation, thereby suppressing ARV growth in host cells. PMID- 29321313 TI - TIP60 Complex Inhibits Hepatitis B Virus Transcription. AB - Hepatitis B virus (HBV) is a global major health problem, with over one million deaths annually caused by chronic liver damage. Understanding host factors that modulate HBV replication may aid the development of anti-HBV therapies. Our recent genome-wide small interfering RNA screen using recombinant HBV demonstrated that TIP60 inhibited HBV infection. Here, we show that TIP60 complex contributes to anti-HBV defense. The TIP60 complex bound to the HBV promoter and suppressed HBV transcription driven by the precore/core promoter. The silencing of EP400, TRRAP, BAF53a, RUVBL1, and RUVBL2, which form the TIP60 complex, also resulted in increased HBV transcription. These results contribute to our enhanced understanding of the molecular mechanism of HBV transcription associated with the chromatin structure of HBV covalently closed circular DNA (cccDNA). Exploiting these intrinsic cellular defenses might help develop new anti-HBV agents.IMPORTANCE Investigating the molecular mechanism of HBV replication is important to understand the persistent nature of HBV infection and to aid the development of new HBV agents, which are currently limited to HBV polymerase inhibitors. Previously, we developed a new reporter HBV. By screening host factors using this recombinant virus, we identified several gene products that regulate HBV infection, including TIP60. Here, we showed that TIP60, a catalytic subunit of the NuA4 complex, inhibited HBV replication. Depletion of TIP60 increased the level of HBV mRNA. Moreover, TIP60 localized in the HBV cccDNA chromatin complex catalyzed the acetylation of histone H4 to recruit Brd4. These results suggest that TIP60, in concert with other cellular factors, plays an important role in the regulation of the HBV chromatin structure by acting as a critical component of the intrinsic antiviral defense, which sheds new light on the regulation of HBV replication. PMID- 29321314 TI - HLA Class I Downregulation by HIV-1 Variants from Subtype C Transmission Pairs. AB - HIV-1 downregulates HLA-A and HLA-B from the surface of infected cells primarily to evade CD8 T cell recognition. HLA-C was thought to remain on the cell surface and bind inhibitory killer immunoglobulin-like receptors, preventing NK cell mediated suppression. However, a recent study found HIV-1 primary viruses have the capacity to downregulate HLA-C. The goal of this study was to assess the heterogeneity of HLA-A, HLA-B and HLA-C downregulation among full-length primary viruses from six chronically infected and six newly infected individuals from transmission pairs, and to determine whether transmitted/founder variants exhibit common HLA class I downregulation characteristics. We measured HLA-A, HLA-B, HLA C and total HLA class I downregulation by flow cytometry of primary CD4 T cells infected with 40 infectious molecular clones. Primary viruses mediated a range of HLA class I downregulation capacities (1.3-6.1-fold), which could differ significantly between transmission pairs. Downregulation of HLA-C surface expression on infected cells correlated with susceptibility to in vitro NK cell suppression of virus release. Despite this, transmitted/founder variants did not share a common downregulation signature and instead were more similar to the quasispecies of matched donor partners. These data indicate that a range of viral abilities to downregulate HLA-A, HLA-B and HLA-C exist within and between individuals, which can have functional consequences on immune recognition.IMPORTANCE Subtype C HIV-1 is the predominant subtype involved in heterosexual transmission in Sub-Saharan Africa. Authentic subtype C viruses that contain natural sequence variations throughout the genome are often not used in experimental systems, due to technical constraints and sample availability. In this study, authentic full-length subtype C viruses, including transmitted/founder viruses, were examined for the ability to disrupt surface expression of human leukocyte antigen (HLA) class I molecules, which are central to both adaptive and innate immune responses to viral infections. We found that HLA class I downregulation capacity of primary viruses varied, and HLA-C downregulation capacity impacted viral suppression by natural killer cells. Transmitted viruses were not distinct in the capacity for HLA class I downregulation or natural killer cell evasion. These results enrich our understanding of the phenotypic variation existing among natural HIV-1 viruses, and how that might impact the ability of the immune system to recognize infected cells in acute and chronic infection. PMID- 29321315 TI - Paramyxovirus V Proteins Interact with the RIG-I/TRIM25 Regulatory Complex and Inhibit RIG-I Signaling. AB - Paramyxovirus V proteins are known antagonists of the RIG-I-like receptor (RLR) mediated interferon induction pathway, interacting with and inhibiting the RLR MDA5. We report interactions between the Nipah virus V protein and both RIG-I regulatory protein TRIM25 and RIG-I. We also observed interactions between these host proteins and the V proteins of measles virus, Sendai virus, and parainfluenza virus. These interactions are mediated by the conserved C-terminal domain of the V protein, which binds to the tandem caspase activation and recruitment domains (CARDs) of RIG-I (the region of TRIM25 ubiquitination) and to the SPRY domain of TRIM25, which mediates TRIM25 interaction with the RIG-I CARDs. Furthermore, we show that V interaction with TRIM25 and RIG-I prevents TRIM25-mediated ubiquitination of RIG-I and disrupts downstream RIG-I signaling to the mitochondrial antiviral signaling protein. This is a novel mechanism for innate immune inhibition by paramyxovirus V proteins, distinct from other known V protein functions such as MDA5 and STAT1 antagonism.IMPORTANCE The host RIG-I signaling pathway is a key early obstacle to paramyxovirus infection, as it results in rapid induction of an antiviral response. This study shows that paramyxovirus V proteins interact with and inhibit the activation of RIG-I, thereby interrupting the antiviral signaling pathway and facilitating virus replication. PMID- 29321316 TI - Two Residues in NSP9 Contribute to the Enhanced Replication and Pathogenicity of Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus. AB - Highly pathogenic porcine reproductive and respiratory syndrome virus (HP-PRRSV) possesses greater replicative capacity and pathogenicity than classical PRRSV. However, the factors that lead to enhanced replication and pathogenicity remain unclear. In our study, an alignment of all available full-length sequences of North American-type PRRSVs (n = 204) revealed two consistent amino acid mutations that differed between HP-PRRSV and classical PRRSV and were located at positions 519 and 544 in nonstructural protein 9. Next, a series of mutant viruses with either single or double amino acid replacements were generated from HP-PRRSV HuN4 and classical PRRSV CH-1a infectious cDNA clones. Deletion of either of the amino acids led to a complete loss of virus viability. In both Marc-145 and porcine alveolar macrophages, the replicative efficiencies of mutant viruses based on HuN4 were reduced compared to the parent, whereas the replication level of CH-1a derived mutant viruses was increased. Plaque growth assays showed clear differences between mutant and parental viruses. In infected piglets, the pathogenicity of HuN4-derived mutant viruses, assessed through clinical symptoms, viral load in sera, histopathology examination, and thymus atrophy, was reduced. Our results indicate that the amino acids at positions 519 and 544 in NSP9 are involved in the replication efficiency of HP-PRRSV and contribute to enhanced pathogenicity. This study is the first to identify specific amino acids involved in PRRSV replication or pathogenicity. These findings will contribute to understanding the molecular mechanisms of PRRSV replication and pathogenicity, leading to better therapeutic and prognostic options to combat the virus.IMPORTANCE Porcine reproductive and respiratory syndrome (PRRS), caused by porcine reproductive and respiratory syndrome virus (PRRSV), is a significant threat to the global pig industry. Highly pathogenic PRRSV (HP-PRRSV) first emerged in China in 2006 and has subsequently spread across Asia, causing considerable damage to local economies. HP-PRRSV strains possess a greater replication capacity and higher pathogenicity than classical PRRSV strains, although the mechanisms that underlie these characteristics are unclear. In the present study, we identified two mutations in HP-PRRSV strains that distinguish them from classical PRRSV strains. Further experiments that swapped the two mutations in an HP-PRRSV strain and a classical PRRSV strain demonstrated that they are involved in the replication efficiency of the virus and its virulence. Our findings have important implications for understanding the molecular mechanisms of PRRSV replication and pathogenicity and also provide new avenues of research for the study of other viruses. PMID- 29321318 TI - Viperin Restricts Zika Virus and Tick-Borne Encephalitis Virus Replication by Targeting NS3 for Proteasomal Degradation. AB - Flaviviruses are arthropod-borne viruses that constitute a major global health problem, with millions of human infections annually. Their pathogenesis ranges from mild illness to severe manifestations such as hemorrhagic fever and fatal encephalitis. Type I interferons (IFNs) are induced in response to viral infection and stimulate the expression of interferon-stimulated genes (ISGs), including that encoding viperin (virus-inhibitory protein, endoplasmic reticulum associated, IFN inducible), which shows antiviral activity against a broad spectrum of viruses, including several flaviviruses. Here we describe a novel antiviral mechanism employed by viperin against two prominent flaviviruses, tick borne encephalitis virus (TBEV) and Zika virus (ZIKV). Viperin was found to interact and colocalize with the structural proteins premembrane (prM) and envelope (E) of TBEV, as well as with nonstructural (NS) proteins NS2A, NS2B, and NS3. Interestingly, viperin expression reduced the NS3 protein level, and the stability of the other interacting viral proteins, but only in the presence of NS3. We also found that although viperin interacted with NS3 of mosquito-borne flaviviruses (ZIKV, Japanese encephalitis virus, and yellow fever virus), only ZIKV was sensitive to the antiviral effect of viperin. This sensitivity correlated with viperin's ability to induce proteasome-dependent degradation of NS3. ZIKV and TBEV replication was rescued completely when NS3 was overexpressed, suggesting that the viral NS3 is the specific target of viperin. In summary, we present here a novel antiviral mechanism of viperin that is selective for specific viruses in the genus Flavivirus, affording the possible availability of new drug targets that can be used for therapeutic intervention.IMPORTANCE Flaviviruses are a group of enveloped RNA viruses that cause severe diseases in humans and animals worldwide, but no antiviral treatment is yet available. Viperin, a host protein produced in response to infection, effectively restricts the replication of several flaviviruses, but the exact molecular mechanisms have not been elucidated. Here we have identified a novel mechanism employed by viperin to inhibit the replication of two flaviviruses: tick-borne encephalitis virus (TBEV) and Zika virus (ZIKV). Viperin induced selective degradation via the proteasome of TBEV and ZIKV nonstructural 3 (NS3) protein, which is involved in several steps of the viral life cycle. Furthermore, viperin also reduced the stability of several other viral proteins in a NS3-dependent manner, suggesting a central role of NS3 in viperin's antiflavivirus activity. Taking the results together, our work shows important similarities and differences among the members of the genus Flavivirus and could lead to the possibility of therapeutic intervention. PMID- 29321317 TI - The Wnt Signaling Pathway Is Differentially Expressed during the Bovine Herpesvirus 1 Latency-Reactivation Cycle: Evidence That Two Protein Kinases Associated with Neuronal Survival, Akt3 and BMPR2, Are Expressed at Higher Levels during Latency. AB - Sensory neurons in trigeminal ganglia (TG) of calves latently infected with bovine herpesvirus 1 (BoHV-1) abundantly express latency-related (LR) gene products, including a protein (ORF2) and two micro-RNAs. Recent studies in mouse neuroblastoma cells (Neuro-2A) demonstrated ORF2 interacts with beta-catenin and a beta-catenin coactivator, high-mobility group AT-hook 1 (HMGA1) protein, which correlates with increased beta-catenin-dependent transcription and cell survival. beta-Catenin and HMGA1 are readily detected in a subset of latently infected TG neurons but not TG neurons from uninfected calves or reactivation from latency. Consequently, we hypothesized that the Wnt/beta-catenin signaling pathway is differentially expressed during the latency and reactivation cycle and an active Wnt pathway promotes latency. RNA-sequencing studies revealed that 102 genes associated with the Wnt/beta-catenin signaling pathway were differentially expressed in TG during the latency-reactivation cycle in calves. Wnt agonists were generally expressed at higher levels during latency, but these levels decreased during dexamethasone-induced reactivation. The Wnt agonist bone morphogenetic protein receptor 2 (BMPR2) was intriguing because it encodes a serine/threonine receptor kinase that promotes neuronal differentiation and inhibits cell death. Another differentially expressed gene encodes a protein kinase (Akt3), which is significant because Akt activity enhances cell survival and is linked to herpes simplex virus 1 latency and neuronal survival. Additional studies demonstrated ORF2 increased Akt3 steady-state protein levels and interacted with Akt3 in transfected Neuro-2A cells, which correlated with Akt3 activation. Conversely, expression of Wnt antagonists increased during reactivation from latency. Collectively, these studies suggest Wnt signaling cooperates with LR gene products, in particular ORF2, to promote latency.IMPORTANCE Lifelong BoHV-1 latency primarily occurs in sensory neurons. The synthetic corticosteroid dexamethasone consistently induces reactivation from latency in calves. RNA sequencing studies revealed 102 genes associated with the Wnt/beta-catenin signaling pathway are differentially regulated during the latency-reactivation cycle. Two protein kinases associated with the Wnt pathway, Akt3 and BMPR2, were expressed at higher levels during latency but were repressed during reactivation. Furthermore, five genes encoding soluble Wnt antagonists and beta-catenin-dependent transcription inhibitors were induced during reactivation from latency. These findings are important because Wnt, BMPR2, and Akt3 promote neurogenesis and cell survival, processes crucial for lifelong viral latency. In transfected neuroblastoma cells, a viral protein expressed during latency (ORF2) interacts with and enhances Akt3 protein kinase activity. These findings provide insight into how cellular factors associated with the Wnt signaling pathway cooperate with LR gene products to regulate the BoHV-1 latency-reactivation cycle. PMID- 29321319 TI - Non-structural protein sigma1s is required for optimal reovirus protein expression. AB - Reovirus non-structural protein sigma1s is required for the establishment of viremia and hematogenous viral dissemination. However, the function of the sigma1s protein during the reovirus replication cycle is not known. In this study, we found that sigma1s was required for efficient reovirus replication in SV40-immortalized endothelial cells (SVECs), mouse embryonic fibroblasts, human umbilical vein endothelial cells (HUVECs), and T84 human colonic epithelial cells. In each of these cell lines, wild type reovirus produced substantially higher viral titers than a sigma1s-deficient mutant. The sigma1s protein was not required for early events in the reovirus infection, as no difference in infectivity between the wild type and sigma1s-null viruses was observed. However, wild type virus produced markedly higher viral protein levels than the sigma1s deficient strain. The disparity in viral replication did not result from differences in viral transcription or protein stability. We further found that the sigma1s protein was dispensable for cell killing and induction of type-1 interferon responses. In the absence of sigma1s, viral factory (VF) maturation was impaired, but sufficient to support low levels of reovirus replication. Together, our results indicate that sigma1s is not absolutely essential for viral protein production, but rather potentiates reovirus protein expression to facilitate reovirus replication. Our findings suggest that sigma1s enables hematogenous reovirus dissemination by promoting efficient viral protein synthesis, and thereby reovirus replication, in cells that are required for reovirus spread to the blood.IMPORTANCEHematogenous dissemination is critical a step in the pathogenesis of many viruses. For reovirus, nonstructural protein sigma1s is required for viral spread via the blood. However, the mechanism by sigma1s promotes reovirus dissemination is unknown. Here, we identified sigma1s as a viral mediator of reovirus protein expression. We found several cultured cell lines in which sigma1s is required for efficient reovirus replication. In these cells, wild type virus produced substantially higher levels of viral protein than a sigma1s-deficient mutant. The sigma1s protein was not required for viral mRNA transcription or viral protein stability. Owing to reduced levels of viral protein synthesized in the absence of sigma1s, maturation of viral factories was impaired and significantly fewer viral progeny were produced. Taken together, our findings indicate that sigma1s is required for optimal reovirus protein production, and thereby viral replication, in cells required hematogenous reovirus dissemination. PMID- 29321321 TI - Functional Analysis of the Dengue Virus Genome Using an Insertional Mutagenesis Screen. AB - In the last few decades, dengue virus, an arbovirus, has spread to over 120 countries. Although a vaccine has been approved in some countries, limitations on its effectiveness and a lack of effective antiviral treatments reinforce the need for additional research. The functions of several viral nonstructural proteins are essentially unknown. To better understand the functions of these proteins and thus dengue virus pathogenesis, we embarked on a genomewide transposon mutagenesis screen with next-generation sequencing to determine sites in the viral genome that tolerate 15-nucleotide insertions. Using this approach, we generated support for several published predicted transmembrane and enzymatic domains. Next, we created 7 mutants containing the 15-nucleotide insertion from the original selection and found 6 of them were capable of replication in both mammalian and mosquito tissue culture cells. Interestingly, one mutation had a significant impairment of viral assembly, and this mutation may lead to a better understanding of viral assembly and release. In addition, we created a fully infectious virus expressing a functionally tagged NS4B protein, which will provide a much-needed tool to elucidate the role of NS4B in viral pathogenesis.IMPORTANCE Dengue virus is a mosquito-borne virus distributed in tropical and subtropical regions globally that can result in hospitalization and even death in some cases. Although a vaccine exists, its limitations and a lack of approved antiviral treatments highlight our limited understanding of dengue virus pathogenesis and host immunity. The functions of many viral proteins are poorly understood. We used a previously published approach using transposon mutagenesis to develop tools to study these proteins' functions by adding insertions randomly throughout the viral genomes. These genomes were transferred into cells, and infectious progeny were recovered to determine sites that tolerated insertions, as only the genomes that tolerated insertions would be able to propagate. Using these results, we created viruses with epitope tags, one in the viral structural protein Capsid and one in the viral nonstructural protein NS4B. Further investigation of these mutants may elucidate the roles of Capsid and NS4B during dengue virus infections. PMID- 29321320 TI - HIV-1-Specific IgA Monoclonal Antibodies from an HIV-1 Vaccinee Mediate Galactosylceramide Blocking and Phagocytosis. AB - Vaccine-elicited humoral immune responses comprise an array of antibody forms and specificities, with only a fraction contributing to protective host immunity. Elucidation of antibody effector functions responsible for protective immunity against human immunodeficiency virus type 1 (HIV-1) acquisition is a major goal for the HIV-1 vaccine field. Immunoglobulin A (IgA) is an important part of the host defense against pathogens; however, little is known about the role of vaccine-elicited IgA and its capacity to mediate antiviral functions. To identify the antiviral functions of HIV-1-specific IgA elicited by vaccination, we cloned HIV-1 envelope-specific IgA monoclonal antibodies (MAbs) by memory B cell cultures from peripheral blood mononuclear cells from an RV144 vaccinee and produced two IgA clonal cell lines (HG129 and HG130) producing native, nonrecombinant IgA MAbs. The HG129 and HG130 MAbs mediated phagocytosis by monocytes, and HG129 blocked HIV-1 Env glycoprotein binding to galactosylceramide, an alternative HIV-1 receptor. These findings elucidate potential antiviral functions of vaccine-elicited HIV-1 envelope-specific IgA that may act to block HIV-1 acquisition at the portal of entry by preventing HIV 1 binding to galactosylceramide and mediating antibody Fc receptor-mediated virion phagocytosis. Furthermore, these findings highlight the complex and diverse interactions of vaccine-elicited IgA with pathogens that depend on IgA fine specificity and form (e.g., multimeric or monomeric) in the systemic circulation and mucosal compartments.IMPORTANCE Host-pathogen interactions in vivo involve numerous immune mechanisms that can lead to pathogen clearance. Understanding the nature of antiviral immune mechanisms can inform the design of efficacious HIV-1 vaccine strategies. Evidence suggests that both neutralizing and nonneutralizing antibodies can mediate some protection against HIV in animal models. Although numerous studies have characterized the functional properties of HIV-1-specific IgG, more studies are needed on the functional attributes of HIV-1 specific IgA, specifically for vaccine-elicited IgA. Characterization of the functional properties of HIV-1 Env-specific IgA monoclonal antibodies from human vaccine clinical trials are critical toward understanding the capacity of the host immune response to block HIV-1 acquisition. PMID- 29321322 TI - Dengue Virus Selectively Annexes Endoplasmic Reticulum-Associated Translation Machinery as a Strategy for Co-opting Host Cell Protein Synthesis. AB - A primary question in dengue virus (DENV) biology is the molecular strategy for recruitment of host cell protein synthesis machinery. Here, we combined cell fractionation, ribosome profiling, and transcriptome sequencing (RNA-seq) to investigate the subcellular organization of viral genome translation and replication as well as host cell translation and its response to DENV infection. We report that throughout the viral life cycle, DENV plus- and minus-strand RNAs were highly partitioned to the endoplasmic reticulum (ER), identifying the ER as the primary site of DENV translation. DENV infection was accompanied by an ER compartment-specific remodeling of translation, where ER translation capacity was subverted from host transcripts to DENV plus-strand RNA, particularly at late stages of infection. Remarkably, translation levels and patterns in the cytosol compartment were only modestly affected throughout the experimental time course of infection. Comparisons of ribosome footprinting densities of the DENV plus strand RNA and host mRNAs indicated that DENV plus-strand RNA was only sparsely loaded with ribosomes. Combined, these observations suggest a mechanism where ER localized translation and translational control mechanisms, likely cis encoded, are used to repurpose the ER for DENV virion production. Consistent with this view, we found ER-linked cellular stress response pathways commonly associated with viral infection, namely, the interferon response and unfolded protein response, to be only modestly activated during DENV infection. These data support a model where DENV reprograms the ER protein synthesis and processing environment to promote viral survival and replication while minimizing the activation of antiviral and proteostatic stress response pathways.IMPORTANCE DENV, a prominent human health threat with no broadly effective or specific treatment, depends on host cell translation machinery for viral replication, immune evasion, and virion biogenesis. The molecular mechanism by which DENV commandeers the host cell protein synthesis machinery and the subcellular organization of DENV replication and viral protein synthesis is poorly understood. Here, we report that DENV has an almost exclusively ER-localized life cycle, with viral replication and translation largely restricted to the ER. Surprisingly, DENV infection largely affects only ER-associated translation, with relatively modest effects on host cell translation in the cytosol. DENV RNA translation is very inefficient, likely representing a strategy to minimize disruption of ER proteostasis. Overall these findings demonstrate that DENV has evolved an ER-compartmentalized life cycle; thus, targeting the molecular signatures and regulation of the DENV-ER interaction landscape may reveal strategies for therapeutic intervention. PMID- 29321324 TI - Influenza C and D Viruses Package Eight Organized Ribonucleoprotein Complexes. AB - Influenza A and B viruses have eight-segmented, single-stranded, negative-sense RNA genomes, whereas influenza C and D viruses have seven-segmented genomes. Each genomic RNA segment exists in the form of a ribonucleoprotein complex (RNP) in association with nucleoproteins and an RNA-dependent RNA polymerase in virions. Influenza D virus was recently isolated from swine and cattle, but its morphology is not fully studied. Here, we examined the morphological characteristics of D/bovine/Yamagata/10710/2016 (D/Yamagata) and C/Ann Arbor/50 (C/AA), focusing on RNPs packaged within the virions. By scanning transmission electron microscopic tomography, we found that more than 70% of D/Yamagata and C/AA virions packaged eight RNPs arranged in the "1+7" pattern as observed in influenza A and B viruses, even though type C and D virus genomes are segmented into only seven segments. These results imply that influenza viruses generally package eight RNPs arranged in the "1+7" pattern regardless of the number of RNA segments in their genome.IMPORTANCE The genomes of influenza A and B viruses are segmented into eight segments of negative-sense RNA, and those of influenza C and D viruses are segmented into seven segments. For progeny virions to be infectious, each virion needs to package all of their genomic segments. Several studies support the conclusion that influenza A and B viruses selectively package eight distinct genomic RNA segments; however, the packaging of influenza C and D viruses, which possess seven segmented genomes, is less understood. By using electron microscopy, we showed that influenza C and D viruses package eight RNA segments just as influenza A and B viruses do. These results suggest that influenza viruses prefer to package eight RNA segments within virions independent of the number of genome segments. PMID- 29321323 TI - HIV-1 Vif's Capacity To Manipulate the Cell Cycle Is Species Specific. AB - Cells derived from mice and other rodents exhibit profound blocks to HIV-1 virion production, reflecting species-specific incompatibilities between viral Tat and Rev proteins and essential host factors cyclin T1 (CCNT1) and exportin-1 (XPO1, also known as CRM1), respectively. To determine if mouse cell blocks other than CCNT1 and XPO1 affect HIV's postintegration stages, we studied HIV-1NL4-3 gene expression in mouse NIH 3T3 cells modified to constitutively express HIV-1 compatible versions of CCNT1 and XPO1 (3T3.CX cells). 3T3.CX cells supported both Rev-independent and Rev-dependent viral gene expression and produced relatively robust levels of virus particles, confirming that CCNT1 and XPO1 represent the predominant blocks to these stages. Unexpectedly, however, 3T3.CX cells were remarkably resistant to virus-induced cytopathic effects observed in human cell lines, which we mapped to the viral protein Vif and its apparent species-specific capacity to induce G2/M cell cycle arrest. Vif was able to mediate rapid degradation of human APOBEC3G and the PPP2R5D regulatory B56 subunit of the PP2A phosphatase holoenzyme in mouse cells, thus demonstrating that VifNL4-3's modulation of the cell cycle can be functionally uncoupled from some of its other defined roles in CUL5-dependent protein degradation. Vif was also unable to induce G2/M cell cycle arrest in other nonhuman cell types, including cells derived from nonhuman primates, leading us to propose that one or more human specific cofactors underpin Vif's ability to modulate the cell cycle.IMPORTANCE Cells derived from mice and other rodents exhibit profound blocks to HIV-1 replication, thus hindering the development of a low-cost small-animal model for studying HIV/AIDS. Here, we engineered otherwise-nonpermissive mouse cells to express HIV-1-compatible versions of two species-specific host dependency factors, cyclin T1 (CCNT1) and exportin-1 (XPO1) (3T3.CX cells). We show that 3T3.CX cells rescue HIV-1 particle production but, unexpectedly, are completely resistant to virus-induced cytopathic effects. We mapped these effects to the viral accessory protein Vif, which induces a prolonged G2/M cell cycle arrest followed by apoptosis in human cells. Combined, our results indicate that one or more additional human-specific cofactors govern HIV-1's capacity to modulate the cell cycle, with potential relevance to viral pathogenesis in people and existing animal models. PMID- 29321325 TI - The Identification and Characterization of Sindbis Virus RNA:Host Protein Interactions. AB - Arthropod-borne viruses, such as the members of genus Alphavirus, are a significant concern to global public health. As obligate intracellular pathogens, RNA viruses must interact with the host cell machinery to establish, and complete, their viral lifecycles. Despite considerable efforts to define the host/pathogen interactions essential for alphaviral replication, an unbiased and inclusive assessment of alphaviral RNA:protein interactions has not been undertaken. Moreover, the biological and molecular importance of these interactions, in the full context of their molecular function as RNA-binding proteins, has not been fully realized. The data presented here introduces a robust viral RNA:protein discovery method to elucidate the Sindbis virus (SINV) RNA:Protein host interface. Cross-Link Assisted mRNP Purification (CLAMP) assessment reveals an extensive array of host/pathogen interactions centered on the viral RNAs (vRNAs). After prioritization of the host proteins associated with the vRNAs, we identified the site of Protein:vRNA interaction via a CLIP-seq approach and assessed the consequences of the RNA:protein binding event of hnRNP K, hnRNP I, and hnRNP M in regards to viral infection. Herein we demonstrate that mutation of the prioritized hnRNP:vRNA interaction sites effectively disrupted the hnRNP:vRNA interaction. Correlating with disrupted hnRNP:vRNA binding, SINV growth kinetics were reduced relative to wild type parental viral infections in a vertebrate and invertebrate tissue culture models of infection. The molecular mechanism leading to reduced viral growth kinetics were found to be dysregulated structural gene expression. Collectively, this study further defines the scope and importance of the alphavirus host/pathogen vRNA:protein interactions.IMPORTANCE Members of the genus Alphavirus are widely recognized for their potential to cause severe disease. Despite this recognition, there are no antiviral therapeutics, or safe and effective vaccines, currently available to treat alphaviral infection. Alphaviruses utilize the host cell machinery to efficiently establish and complete their viral lifecycle. However, the extent, and importance, of host/pathogen RNA:protein interactions is woefully under characterized. The efforts detailed in this study fulfill this critical gap; and the significance of this research is three-fold. First, the data presented here fundamentally expands the scope and understanding of alphavirus host/pathogen interactions. Secondly, this study identifies the site of interactions for several prioritized interactions and defines the contribution of the RNA:protein interaction at the molecular level. Finally, these studies build a strategy by which the importance of given host/pathogen interactions may be assessed, in the future, using a mouse model of infection. PMID- 29321326 TI - The Amino Terminus of Herpes Simplex Virus 1 Glycoprotein K (gK) Is Required for gB Binding to Akt, Release of Intracellular Calcium, and Fusion of the Viral Envelope with Plasma Membranes. AB - Previously, we have shown that the amino terminus of glycoprotein K (gK) binds to the amino terminus of gB and that deletion of the amino-terminal 38 amino acids of gK prevents herpes simplex virus 1 (HSV-1) infection of mouse trigeminal ganglia after ocular infection and virus entry into neuronal axons. Recently, it has been shown that gB binds to Akt during virus entry and induces Akt phosphorylation and intracellular calcium release. Proximity ligation and two-way immunoprecipitation assays using monoclonal antibodies against gB and Akt-1 phosphorylated at S473 [Akt-1(S473)] confirmed that HSV-1(McKrae) gB interacted with Akt-1(S473) during virus entry into human neuroblastoma (SK-N-SH) cells and induced the release of intracellular calcium. In contrast, the gB specified by HSV-1(McKrae) gKDelta31-68, lacking the amino-terminal 38 amino acids of gK, failed to interact with Akt-1(S473) and induce intracellular calcium release. The Akt inhibitor miltefosine inhibited the entry of McKrae but not the gKDelta31-68 mutant into SK-N-SH cells. Importantly, the entry of the gKDelta31-68 mutant but not McKrae into SK-N-SH cells treated with the endocytosis inhibitors pitstop-2 and dynasore hydrate was significantly inhibited, indicating that McKrae gKDelta31-68 entered via endocytosis. These results suggest that the amino terminus of gK functions to regulate the fusion of the viral envelope with cellular plasma membranes.IMPORTANCE HSV-1 glycoprotein B (gB) functions in the fusion of the viral envelope with cellular membranes during virus entry. Herein, we show that a deletion in the amino terminus of glycoprotein K (gK) inhibits gB binding to Akt-1(S473), the release of intracellular calcium, and virus entry via fusion of the viral envelope with cellular plasma membranes. PMID- 29321327 TI - Human Papillomavirus 16 Infection Induces VAP-Dependent Endosomal Tubulation. AB - Human papillomavirus (HPV) infection involves complex interactions with the endocytic transport machinery, which ultimately facilitates the entry of the incoming viral genomes into the trans-Golgi network (TGN) and their subsequent nuclear entry during mitosis. The endosomal pathway is a highly dynamic intracellular transport system, which consists of vesicular compartments and tubular extensions, although it is currently unclear whether incoming viruses specifically alter the endocytic machinery. In this study, using MICAL-L1 as a marker for tubulating endosomes, we show that incoming HPV-16 virions induce a profound alteration in global levels of endocytic tubulation. In addition, we also show a critical requirement for the endoplasmic reticulum (ER)-anchored protein VAP in this process. VAP plays an essential role in actin nucleation and endosome-to-Golgi transport. Indeed, the loss of VAP results in a dramatic decrease in the level of endosomal tubulation induced by incoming HPV-16 virions. This is also accompanied by a marked reduction in virus infectivity. In VAP knockdown cells, we see that the defect in virus trafficking occurs after capsid disassembly but prior to localization at the trans-Golgi network, with the incoming virion-transduced DNA accumulating in Vps29/TGN46-positive hybrid vesicles. Taken together, these studies demonstrate that infection with HPV-16 virions induces marked alterations of endocytic transport pathways, some of which are VAP dependent and required for the endosome-to-Golgi transport of the incoming viral L2/DNA complex.IMPORTANCE Human papillomavirus infectious entry involves multiple interactions with the endocytic transport machinery. In this study, we show that incoming HPV-16 virions induce a dramatic increase in endocytic tubulation. This tubulation requires ER-associated VAP, which plays a critical role in ensuring the delivery of cargoes from the endocytic compartments to the trans-Golgi network. Indeed, the loss of VAP blocks HPV infectious entry at a step after capsid uncoating but prior to localization at the trans-Golgi network. These results define a critical role for ER-associated VAP in endocytic tubulation and in HPV-16 infectious entry. PMID- 29321328 TI - Activities of Thrombin and Factor Xa Are Essential for Replication of Hepatitis E Virus and Are Possibly Implicated in ORF1 Polyprotein Processing. AB - Hepatitis E virus (HEV) is a clinically important positive-sense RNA virus. The ORF1 of HEV encodes a nonstructural polyprotein of 1,693 amino acids. It is not clear whether the ORF1 polyprotein (pORF1) is processed into distinct enzymatic domains. Many researchers have attempted to understand the mechanisms of pORF1 processing. However, these studies gave various results and could never convincingly establish the mechanism of pORF1 processing. In this study, we demonstrated the possible role of thrombin and factor Xa in pORF1 processing. We observed that the HEV pORF1 polyprotein bears conserved cleavage sites of thrombin and factor Xa. Using a reverse genetics approach, we demonstrated that an HEV replicon having mutations in the cleavage sites of either thrombin or factor Xa could not replicate efficiently in cell culture. Further, we demonstrated in vitro processing when we incubated recombinant pORF1 fragments with thrombin, and we observed the processing of pORF1 polyprotein. The treatment of a liver cell line with a serine protease inhibitor as well as small interfering RNA (siRNA) knockdown of thrombin and factor Xa resulted in significant reduction in the replication of HEV. Thrombin and factor Xa have been well studied for their roles in blood clotting. Both of these proteins are believed to be present in the active form in the blood plasma. Interestingly, in this report, we demonstrated the presence of biologically active thrombin and factor Xa in a liver cell line. The results suggest that factor Xa and thrombin are essential for the replication of HEV and may be involved in pORF1 polyprotein processing of HEV.IMPORTANCE Hepatitis E virus (HEV) causes a liver disorder called hepatitis in humans, which is mostly an acute and self-limiting infection in adults. A high mortality rate of about 30% is observed in HEV-infected pregnant women in developing countries. There is no convincing opinion about HEV ORF1 polyprotein processing owing to the variability of study results obtained so far. HEV pORF1 has cleavage sites for two host cellular serine proteases, thrombin and factor Xa, that are conserved among HEV genotypes. For the first time, this study demonstrated that thrombin and factor Xa cleavage sites on HEV pORF1 are obligatory for HEV replication. Intracellular biochemical activities of the said serine proteases are also essential for efficient HEV replication in cell culture and must be involved in pORF1 processing. This study sheds light on the presence and roles of clotting factors with respect to virus replication in the cells. PMID- 29321329 TI - A Cyclin-Binding Motif in Human SAMHD1 Is Required for Its HIV-1 Restriction, dNTPase Activity, Tetramer Formation, and Efficient Phosphorylation. AB - Sterile alpha motif and HD domain-containing protein 1 (SAMHD1) regulates intracellular deoxynucleoside triphosphate (dNTP) levels and functions as a retroviral restriction factor through its dNTP triphosphohydrolase (dNTPase) activity. Human SAMHD1 interacts with cell cycle regulatory proteins cyclin A2, cyclin-dependent kinase 1 (CDK1), and CDK2. This interaction mediates phosphorylation of SAMHD1 at threonine 592 (T592), which negatively regulates HIV 1 restriction. We previously reported that the interaction is mediated, at least in part, through a cyclin-binding motif (RXL, amino acids [aa] 451 to 453). To understand the role of the RXL motif in regulating SAMHD1 activity, we performed structural and functional analyses of RXL mutants and the effect on HIV-1 restriction. We found that the RXL mutation (R451A and L453A, termed RL/AA) disrupted SAMHD1 tetramer formation and abolished its dNTPase activity in vitro and in cells. Compared to wild-type (WT) SAMHD1, the RL/AA mutant failed to restrict HIV-1 infection and had reduced binding to cyclin A2. WT SAMHD1 and RL/AA mutant proteins were degraded by Vpx from HIV-2 but were not spontaneously ubiquitinated in the absence of Vpx. Analysis of proteasomal and autophagy degradation revealed that WT and RL/AA SAMHD1 protein levels were enhanced only when both pathways of degradation were simultaneously inhibited. Our results demonstrate that the RXL motif of human SAMHD1 is required for its HIV-1 restriction, tetramer formation, dNTPase activity, and efficient phosphorylation at T592. These findings identify a new functional domain of SAMHD1 important for its structural integrity, enzyme activity, phosphorylation, and HIV-1 restriction.IMPORTANCE SAMHD1 is the first mammalian dNTPase identified as a restriction factor that inhibits HIV-1 replication by decreasing the intracellular dNTP pool in nondividing cells, although the critical mechanisms regulating SAMHD1 function remain unclear. We previously reported that mutations of a cyclin-binding RXL motif in human SAMHD1 significantly affect protein expression levels, half-life, nuclear localization, and phosphorylation, suggesting an important role of this motif in modulating SAMHD1 functions in cells. To further understand the significance and mechanisms of the RXL motif in regulating SAMHD1 activity, we performed structural and functional analyses of the RXL motif mutation and its effect on HIV-1 restriction. Our results indicate that the RXL motif is critical for tetramer formation, dNTPase activity, and HIV 1 restriction. These findings help us understand SAMHD1 interactions with other host proteins and the mechanisms regulating SAMHD1 structure and functions in cells. PMID- 29321330 TI - Glycosyl-Phosphatidylinositol-Anchored Anti-HIV Env Single-Chain Variable Fragments Interfere with HIV-1 Env Processing and Viral Infectivity. AB - In previous studies, we demonstrated that single-chain variable fragments (scFvs) from anti-human immunodeficiency virus (HIV) Env monoclonal antibodies act as entry inhibitors when tethered to the surface of target cells by a glycosyl phosphatidylinositol (GPI) anchor. Interestingly, even if a virus escapes inhibition at entry, its replication is ultimately controlled. We hypothesized that in addition to functioning as entry inhibitors, anti-HIV GPI-scFvs may also interact with Env in an infected cell, thereby interfering with the infectivity of newly produced virions. Here, we show that expression of the anti-HIV Env GPI scFvs in virus-producing cells reduced the release of HIV from cells 5- to 22 fold, and infectivity of the virions that were released was inhibited by 74% to 99%. Additionally, anti-HIV Env GPI-scFv X5 inhibited virion production and infectivity after latency reactivation and blocked transmitter/founder virus production and infectivity in primary CD4+ T cells. In contrast, simian immunodeficiency virus (SIV) production and infectivity were not affected by the anti-HIV Env GPI-scFvs. Loss of infectivity of HIV was associated with a reduction in the amount of virion-associated Env gp120. Interestingly, an analysis of Env expression in cell lysates demonstrated that the anti-Env GPI scFvs interfered with processing of Env gp160 precursors in cells. These data indicate that GPI-scFvs can inhibit Env processing and function, thereby restricting production and infectivity of newly synthesized HIV. Anti-Env GPI scFvs therefore appear to be unique anti-HIV molecules as they derive their potent inhibitory activity by interfering with both early (receptor binding/entry) and late (Env processing and incorporation into virions) stages of the HIV life cycle.IMPORTANCE The restoration of immune function and persistence of CD4+ T cells in HIV-1-infected individuals without antiretroviral therapy requires a way to increase resistance of CD4+ T cells to infection by both R5- and X4-tropic HIV-1. Previously, we reported that anchoring anti-HIV-1 single chain variable fragments (scFvs) via glycosyl-phosphatidylinositol (GPI) to the surface of permissive cells conferred a high level of resistance to HIV-1 variants at the level of entry. Here, we report that anti-HIV GPI-scFvs also derive their potent antiviral activity in part by blocking HIV production and Env processing, which consequently inhibits viral infectivity even in primary infection models. Thus, we conclude that GPI-anchored anti-HIV scFvs derive their potent blocking activity of HIV replication by interfering with successive stages of the viral life cycle. They may be effectively used in genetic intervention of HIV-1 infection. PMID- 29321331 TI - Germ Line IgM Is Sufficient, but Not Required, for Antibody-Mediated Alphavirus Clearance from the Central Nervous System. AB - Sindbis virus (SINV) infection of neurons in the brain and spinal cord in mice provides a model system for investigating recovery from encephalomyelitis and antibody-mediated clearance of virus from the central nervous system (CNS). To determine the roles of IgM and IgG in recovery, we compared the responses of immunoglobulin-deficient activation-induced adenosine deaminase-deficient (AID-/ ), secretory IgM-deficient (sIgM-/-), and AID-/- sIgM-/- double-knockout (DKO) mice with those of wild-type (WT) C57BL/6 mice for disease, clearance of infectious virus and viral RNA from brain and spinal cord, antibody responses, and B cell infiltration into the CNS. Because AID is essential for immunoglobulin class switch recombination and somatic hypermutation, AID-/- mice produce only germ line IgM, while sIgM-/- mice secrete IgG but no IgM and DKO mice produce no secreted immunoglobulin. After intracerebral infection with the TE strain of SINV, most mice recovered. Development of neurologic disease occurred slightly later in sIgM-/- mice, but disease severity, weight loss, and survival were similar between the groups. AID-/- mice produced high levels of SINV-specific IgM, while sIgM-/- mice produced no IgM and high levels of IgG2a compared to WT mice. All mice cleared infectious virus from the spinal cord, but DKO mice failed to clear infectious virus from brain and had higher levels of viral RNA in the CNS late after infection. The numbers of infected cells and the amount of cell death in brain were comparable. We conclude that antibody is required and that either germ line IgM or IgG is sufficient for clearance of virus from the CNS.IMPORTANCE Mosquito-borne alphaviruses that infect neurons can cause fatal encephalomyelitis. Recovery requires a mechanism for the immune system to clear virus from infected neurons without harming the infected cells. Antiviral antibody has previously been shown to be a noncytolytic means for alphavirus clearance. Antibody-secreting cells enter the nervous system after infection and produce antiviral IgM before IgG. Clinical studies of human viral encephalomyelitis suggest that prompt production of IgM is associated with recovery, but it was not known whether IgM is effective for clearance. Our studies used mice deficient in production of IgM, IgG, or both to characterize the antibody necessary for alphavirus clearance. All mice developed similar signs of neurologic disease and recovered from infection. Antibody was necessary for virus clearance from the brain, and either early germ line IgM or IgG was sufficient. These studies support the clinical observation that prompt production of antiviral antibody is a determinant of outcome. PMID- 29321332 TI - ERK Is a Critical Regulator of JC Polyomavirus Infection. AB - The human JC polyomavirus (JCPyV) infects the majority of the population worldwide and presents as an asymptomatic, persistent infection in the kidneys. In individuals who are immunocompromised, JCPyV can become reactivated and cause a lytic infection in the central nervous system resulting in the fatal, demyelinating disease progressive multifocal leukoencephalopathy (PML). Infection is initiated by interactions between the capsid protein viral protein 1 (VP1) and the alpha2,6-linked sialic acid on lactoseries tetrasaccharide c (LSTc), while JCPyV internalization is facilitated by 5-hydroxytryptamine 2 receptors (5 HT2Rs). The mechanisms by which the serotonin receptors mediate virus entry and the signaling cascades required to drive viral infection remain poorly understood. JCPyV was previously shown to induce phosphorylation of extracellular signal-regulated kinase (ERK), a downstream target of the mitogen-activated protein kinase (MAPK) pathway, upon virus entry. However, it remained unclear whether ERK activation was required for JCPyV infection. Both ERK-specific small interfering RNA (siRNA) and ERK inhibitor treatments resulted in significantly diminished JCPyV infection in both kidney and glial cells yet had no effect on the infectivity of the polyomavirus simian virus 40 (SV40). Experiments characterizing the role of ERK during steps in the viral life cycle indicate that ERK activation is required for viral transcription, as demonstrated by a significant reduction in production of large T antigen (TAg), a key viral protein associated with the initiation of viral transcription and viral replication. These findings delineate the role of the MAPK-ERK signaling pathway in JCPyV infection, elucidating how the virus reprograms the host cell to promote viral pathogenesis.IMPORTANCE Viral infection is dependent upon host cell factors, including the activation of cellular signaling pathways. These interactions between viruses and host cells are necessary for infection and play an important role in viral disease outcomes. The focus of this study was to determine how the human JC polyomavirus (JCPyV), a virus that resides in the kidney of the majority of the population and can cause the fatal, demyelinating disease progressive multifocal leukoencephalopathy (PML) in the brains of immunosuppressed individuals, usurps a cellular signaling pathway to promote its own infectious life cycle. We demonstrated that the activation of extracellular signal-regulated kinase (ERK), a component of the mitogen-activated protein kinase (MAPK) pathway, promotes JCPyV transcription, which is required for viral infection. Our findings demonstrate that the MAPK-ERK signaling pathway is a key determinant of JCPyV infection, elucidating new information regarding the signal reprogramming of host cells by a pathogenic virus. PMID- 29321333 TI - MicroRNA 130a Regulates both Hepatitis C Virus and Hepatitis B Virus Replication through a Central Metabolic Pathway. AB - Hepatitis C virus (HCV) infection has been shown to regulate microRNA 130a (miR 130a) in patient biopsy specimens and in cultured cells. We sought to identify miR-130a target genes and to explore the mechanisms by which miR-130a regulates HCV and hepatitis B virus (HBV) replication. We used bioinformatics software, including miRanda, TargetScan, PITA, and RNAhybrid, to predict potential miR-130a target genes. miR-130a and its target genes were overexpressed or were knocked down by use of small interfering RNA (siRNA) or clustered regularly interspaced short palindromic repeat (CRISPR)/Cas9 guide RNA (gRNA). Selected gene mRNAs and their proteins, together with HCV replication in OR6 cells, HCV JFH1-infected Huh7.5.1 cells, and HCV JFH1-infected primary human hepatocytes (PHHs) and HBV replication in HepAD38 cells, HBV-infected NTCP-Huh7.5.1 cells, and HBV-infected PHHs, were measured by quantitative reverse transcription-PCR (qRT-PCR) and Western blotting, respectively. We selected 116 predicted target genes whose expression was related to viral pathogenesis or immunity for qPCR validation. Of these, the gene encoding pyruvate kinase in liver and red blood cell (PKLR) was confirmed to be regulated by miR-130a overexpression. miR-130a overexpression (via a mimic) knocked down PKLR mRNA and protein levels. A miR-130a inhibitor and gRNA increased PKLR expression, HCV replication, and HBV replication, while miR 130a gRNA and PKLR overexpression increased HCV and HBV replication. Supplemental pyruvate increased HCV and HBV replication and rescued the inhibition of HCV and HBV replication by the miR-130a mimic and PKLR knockdown. We concluded that miR 130a regulates HCV and HBV replication through its targeting of PKLR and subsequent pyruvate production. Our data provide novel insights into key metabolic enzymatic pathway steps regulated by miR-130a, including the steps involving PKLR and pyruvate, which are subverted by HCV and HBV replication.IMPORTANCE We identified that miR-130a regulates the target gene PKLR and its subsequent effect on pyruvate production. Pyruvate is a key intermediate in several metabolic pathways, and we identified that pyruvate plays a key role in regulation of HCV and HBV replication. This previously unrecognized, miRNA regulated antiviral mechanism has implications for the development of host directed strategies to interrupt the viral life cycle and prevent establishment of persistent infection for HCV, HBV, and potentially other viral infections. PMID- 29321334 TI - Mechanism of HIV-1 Resistance to an Electronically Constrained alpha-Helical Peptide Membrane Fusion Inhibitor. AB - SC29EK is an electronically constrained alpha-helical peptide HIV-1 fusion inhibitor that is highly effective against both wild-type and enfuvirtide (T20) resistant viruses. In this study, we focused on investigating the mechanism of HIV-1 resistance to SC29EK by two approaches. First, SC29EK-escaping HIV-1 variants were selected and characterized. Three mutant viruses, which possessed two (N43K/E49A) or three (Q39R/N43K/N126K and N43K/E49A/N126K) amino acid substitutions in the N- and C-terminal repeat regions of gp41 were identified as conferring high resistance to SC29EK and cross-resistance to the first-generation (T20 and C34) and newly designed (sifuvirtide, MT-SC29EK, and 2P23) fusion inhibitors. The resistance mutations could reduce the binding stability of SC29EK, impair viral Env-mediated cell fusion and entry, and change the conformation of the gp41 core structure. Further, we determined the crystal structure of SC29EK in complex with a target mimic peptide, which revealed the critical intra- and interhelical interactions underlying the mode of action of SC29EK and the genetic pathway to HIV-1 resistance. Taken together, the present data provide new insights into the structure and function of gp41 and the structure-activity relationship (SAR) of viral fusion inhibitors.IMPORTANCE T20 is the only membrane fusion inhibitor available for treatment of viral infection, but it has relatively low anti-HIV activity and genetic barriers for resistance, thus calling for new drugs blocking the viral fusion process. As an electronically constrained alpha-helical peptide, SC29EK is highly potent against both wild-type and T20-resistant HIV-1 strains. Here, we report the characterization of HIV-1 variants resistant to SC29EK and the crystal structure of SC29EK. The key mutations mediating high resistance to SC29EK and cross resistance to the first and new generations of fusion inhibitors as well as the underlying mechanisms were identified. The crystal structure of SC29EK bound to a target mimic peptide further revealed its action mode and genetic pathway to inducing resistance. Hence, our data have shed new lights on the mechanisms of HIV-1 fusion and its inhibition. PMID- 29321335 TI - Serum Hepatocyte Growth Factor Is Probably Associated With 3-Month Prognosis of Acute Ischemic Stroke. AB - BACKGROUND AND PURPOSE: Serum hepatocyte growth factor (HGF) is positively associated with poor prognosis of heart failure and myocardial infarction, and it can also predict the risk of ischemic stroke in population. The goal of this study was to investigate the association between serum HGF and prognosis of ischemic stroke. METHODS: A total of 3027 acute ischemic stroke patients were included in this post hoc analysis of the CATIS (China Antihypertensive Trial in Acute Ischemic Stroke). The primary outcome was composite outcome of death or major disability (modified Rankin Scale score >=3) within 3 months. RESULTS: After multivariate adjustment, elevated HGF levels were associated with an increased risk of primary outcome (odds ratio, 1.50; 95% confidence interval, 1.10-2.03; Ptrend=0.015) when 2 extreme quartiles were compared. Each SD increase of log-transformed HGF was associated with 14% (95% confidence interval, 2%-27%) increased risk of primary outcome. Adding HGF quartiles to a model containing conventional risk factors improved the predictive power for primary outcome (net reclassification improvement: 17.50%, P<0.001; integrated discrimination index: 0.23%, P=0.022). The association between serum HGF and primary outcome could be modified by heparin pre-treatment (Pinteraction=0.001), and a positive linear dose-response relationship between HGF and primary outcome was observed in patients without heparin pre-treatment (Plinearity<0.001) but not in those with heparin pre-treatment. CONCLUSIONS: Serum HGF levels were higher in the more severe stroke at baseline, and elevated HGF levels were probably associated with 3-month poor prognosis independently of stroke severity among ischemic stroke patients, especially in those without heparin pre-treatment. Further studies from other samples of ischemic stroke patients are needed to validate our findings. PMID- 29321336 TI - Neuroimaging Identifies Patients Most Likely to Respond to a Restorative Stroke Therapy. AB - BACKGROUND AND PURPOSE: Patient heterogeneity reduces statistical power in clinical trials of restorative therapies. Valid predictors of treatment responsiveness are needed, and several have been studied with a focus on corticospinal tract (CST) injury. We studied performance of 4 such measures for predicting behavioral gains in response to motor training therapy. METHODS: Patients with subacute-chronic hemiparetic stroke (n=47) received standardized arm motor therapy, and change in arm Fugl-Meyer score was calculated from baseline to 1 month post-therapy. Injury measures calculated from baseline magnetic resonance imaging included (1) percent CST overlap with stroke, (2) CST related atrophy (cerebral peduncle area), (3) CST integrity (fractional anisotropy) in the cerebral peduncle, and (4) CST integrity in the posterior limb of internal capsule. RESULTS: Percent CST overlap with stroke, CST-related atrophy, and CST integrity did not correlate with one another, indicating that these 3 measures captured independent features of CST injury. Percent injury to CST significantly predicted treatment-related behavioral gains (r=-0.41; P=0.004). The other CST injury measures did not, neither did total infarct volume nor baseline behavioral deficits. When directly comparing patients with mild versus severe injury using the percent CST injury measure, the odds ratio was 15.0 (95% confidence interval, 1.54-147; P<0.005) for deriving clinically important treatment-related gains. CONCLUSIONS: Percent CST injury is useful for predicting motor gains in response to therapy in the setting of subacute-chronic stroke. This measure can be used as an entry criterion or a stratifying variable in restorative stroke trials to increase statistical power, reduce sample size, and reduce the cost of such trials. PMID- 29321337 TI - Associations Between Collateral Status and Thrombus Characteristics and Their Impact in Anterior Circulation Stroke. AB - BACKGROUND AND PURPOSE: Thrombus characteristics and collateral score are associated with functional outcome in patients with acute ischemic stroke. It has been suggested that they affect each other. The aim of this study is to evaluate the association between clot burden score, thrombus perviousness, and collateral score and to determine whether collateral score influences the association of thrombus characteristics with functional outcome. METHODS: Patients with baseline thin-slice noncontrast computed tomography and computed tomographic angiography images from the MR CLEAN trial (Multicenter Randomized Clinical Trial of Endovascular Treatment of Acute Ischemic Stroke in the Netherlands) were included (n=195). Collateral score and clot burden scores were determined on baseline computed tomographic angiography. Thrombus attenuation increase was determined by comparing thrombus density on noncontrast computed tomography and computed tomographic angiography using a semiautomated method. The association of collateral score with clot burden score and thrombus attenuation increase was evaluated with linear regression. Mediation and effect modification analyses were used to assess the influence of collateral score on the association of clot burden score and thrombus attenuation increase with functional outcome. RESULTS: A higher clot burden score (B=0.063; 95% confidence interval, 0.008-0.118) and a higher thrombus attenuation increase (B=0.014; 95% confidence interval, 0.003 0.026) were associated with higher collateral score. Collateral score mediated the association of clot burden score with functional outcome. The association between thrombus attenuation increase and functional outcome was modified by the collateral score, and this association was stronger in patients with moderate and good collaterals. CONCLUSIONS: Patients with lower thrombus burden and higher thrombus perviousness scores had higher collateral score. The positive effect of thrombus perviousness on clinical outcome was only present in patients with moderate and high collateral scores. CLINICAL TRIAL REGISTRATION: URL: http://www.trialregister.nl. Unique identifier: NTR1804 and URL: http://www.controlled-trials.com Unique identifier: ISRCTN10888758. PMID- 29321339 TI - Detection of Anterior Circulation Large Artery Occlusion in Ischemic Stroke Using Noninvasive Cerebral Oximetry. AB - BACKGROUND AND PURPOSE: Large artery occlusion (LAO) in ischemic stroke requires recognition and triage to an endovascular stroke treatment center. Noninvasive LAO detection is needed to improve triage. METHODS: Prospective study to test whether noninvasive cerebral oximetry can detect anterior circulation LAO in acute stroke. Interhemispheric DeltaBrSO2 in LAO was compared with controls. RESULTS: In LAO stroke, mean interhemispheric DeltaBrSO2 was -8.3+/-5.8% (n=19), compared with 0.4+/-5.8% in small artery stroke (n=17), 0.4+/-6.0% in hemorrhagic stroke (n=14), and 0.2+/-7.5% in subjects without stroke (n=19) (P<0.001). Endovascular stroke treatment reduced the DeltaBrSO2 in most LAO subjects (16/19). Discrimination of LAO at a -3% DeltaBrSO2 cut had 84% sensitivity and 70% specificity. Addition of the G-FAST clinical score (gaze-face-arm-speech- time) to the BrSO2 measure had 84% sensitivity and 90% specificity. CONCLUSIONS: Noninvasive cerebral oximetry may help detect LAO in ischemic stroke, particularly when combined with a simple clinical scoring system. PMID- 29321338 TI - Improving Access to Thrombolysis and Inhospital Management Times in Ischemic Stroke: A Stepped-Wedge Randomized Trial. AB - BACKGROUND AND PURPOSE: A suboptimal number of ischemic stroke patients eligible for thrombolysis actually receive it, partly because of extended inhospital delays. We developed a comprehensive program designed for emergency unit staff and evaluated its effectiveness for reducing intrahospital times and improving access to thrombolysis. METHODS: We conducted a randomized stepped-wedge controlled trial in 18 emergency unit. The sequentially implemented training intervention, targeting emergency physicians and nurses, was based on specifically designed videos and interactive simulation workshops on intrahospital management optimization. The effectiveness was assessed on intrahospital times and thrombolysis proportion. During the study period, all consecutive patients with confirmed ischemic stroke and no contraindications to thrombolysis were included. RESULTS: A total of 328 patients were enrolled in the control group and 363 in the intervention group. Mean age was 73.6 years. Overall thrombolysis proportion was 34.2% in the intervention group versus 25.6% in the control group (adjusted odds ratio, 1.42; 95% confidence interval, 1.01-2.01), thrombolysis proportion within 4 hours 30 minutes almost doubled (adjusted odds ratio, 1.9; 95% confidence interval, 1.32-2.73). Although imaging-to-stroke unit time was significantly decreased in the intervention group (39 versus 53 minutes; P=0.03), median door-to-imaging and door-to-needle times were not different between groups (P=0.70 and P=0.40, respectively). CONCLUSIONS: An interactive and multifaceted training program targeting emergency professionals was significantly associated with an increased access to thrombolysis, especially within 4 hours and 30 minutes. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT02814760. PMID- 29321340 TI - Retrospective Methods Analysis of Semiautomated Intracerebral Hemorrhage Volume Quantification From a Selection of the STICH II Cohort (Early Surgery Versus Initial Conservative Treatment in Patients With Spontaneous Supratentorial Lobar Intracerebral Haematomas). AB - BACKGROUND AND PURPOSE: The ABC/2 method for calculating intracerebral hemorrhage (ICH) volume has been well validated. However, the formula, derived from the volume of an ellipse, assumes the shape of ICH is elliptical. We sought to compare the agreement of the ABC/2 formula with other methods through retrospective analysis of a selection of the STICH II cohort (Early Surgery Versus Initial Conservative Treatment in Patients With Spontaneous Supratentorial Lobar Intracerebral Haematomas). METHODS: From 390 patients, 739 scans were selected from the STICH II image archive based on the availability of a CT scan compatible with OsiriX DICOM viewer. ICH volumes were calculated by the reference standard semiautomatic segmentation in OsiriX software and compared with calculated arithmetic methods (ABC/2, ABC/2.4, ABC/3, and 2/3SC) volumes. Volumes were compared by difference plots for specific groups: randomization ICH (n=374), 3- to 7-day postsurgical ICH (n=206), antithrombotic-associated ICH (n=79), irregular-shape ICH (n=703) and irregular-density ICH (n=650). Density and shape were measured by the Barras ordinal shape and density groups (1-5). RESULTS: The ABC/2.4 method had the closest agreement to the semiautomatic segmentation volume in all groups, except for the 3- to 7-day postsurgical ICH group where the ABC/3 method was superior. CONCLUSIONS: Although the ABC/2 formula for calculating elliptical ICH is well validated, it must be used with caution in ICH scans where the elliptical shape of ICH is a false assumption. We validated the adjustment of the ABC/2.4 method in randomization, antithrombotic-associated, heterogeneous density, and irregular-shape ICH. CLINICAL TRIAL REGISTRATION: URL: http://www.isrctn.com/ISRCTN22153967. Unique identifier: ISRCTN22153967. PMID- 29321341 TI - Exercise tolerance and balance of inspiratory-to-expiratory muscle strength in relation to breathing timing in patients with chronic obstructive pulmonary disease. AB - RATIONALE: Little is known about the applicability of respiratory muscle training based on exertional pathophysiological conditions in patients with chronic obstructive pulmonary disease (COPD). The aim of this study was to investigate the relationship between breathing timing and exertional responses, as well as whether exertional changes in the inspiratory duty cycle (Ti/Ttot) affect pathophysiological conditions, including respiratory muscles. METHODS: Forty-five stable COPD patients (mean age: 71.2 years, severe and very severe COPD: 80%) were evaluated based on exertional cardiopulmonary function and respiratory muscle strength. To compare exertional responses and the balance of inspiratory to-expiratory muscle strength, the patients were divided into two groups according to whether the Ti/Ttot increased (Ti/Ttot-increased group: resting Ti/Ttot <= peak Ti/Ttot, n = 21) or decreased during exercise (Ti/Ttot-decreased group: resting Ti/Ttot > peak Ti/Ttot, n = 24). RESULTS: At peak exercise, the Ti/Ttot was positively correlated with minute ventilation ([Formula: see text] E), and oxygen uptake ([Formula: see text]) in all patients. No significant differences were seen in breathing frequency, tidal volume, or [Formula: see text] E at peak exercise between the two groups. Compared with the Ti/Ttot increased group, the Ti/Ttot-decreased group had significantly lower mean values of [Formula: see text] and DeltaFO2 (the inspired minus expired oxygen concentration) at peak exercise, and significantly higher mean values of the absolute ratio of maximal inspiratory pressure/maximal expiratory pressure. CONCLUSIONS: The exertional change of breathing timing affected exercise tolerance and the balance of inspiratory-to-expiratory muscle strength; this finding might be helpful in making the contradictory choice of managing COPD patients with inspiratory or expiratory muscle training. PMID- 29321342 TI - Association between SSR markers and fibre traits in sea island cotton (Gossypium barbadense) germplasm resources. AB - Identification of molecular markers associated with fibre traits can accelerate cotton marker-assisted selection (MAS) programmes. In this study, Gossypium barbadense germplasm accessions with diverse origins (n = 123) were used to perform association analysis of fibre traits with 120 polymorphic simple sequence repeat (SSR) markers. In total, 120 polymorphic primer pairs amplified 258 loci with a mean of 2.15 loci per primer. Population structure analysis identified three main clusters for the accessions, which indicated agreement of genetic and predefined populations. Marker-trait associations (n = 58) were detected for 10 fibre traits with 26 SSR markers located on 15 chromosomes. The R2 (phenotypic variation explained) ranged from 3.19 to 15.21%. Two markers (NAU5465 and NAU3013) were found to be stably associated with boll number per plant (BNP) and fibre uniformity (UI), respectively. Four markers (BNL252, NAU3424,NAU3324 and CGR5202) associated with fibre quality traits preferentially clustered on the D8 chromosome, which was thus identified as an important candidate region for study molecular mechanisms underlying fibre quality and for use in breeding cotton cultivars for improving fibre quality. This study generated molecular data with a potential for better understanding of the genetic basis of the fibre traits and provided new markers for MAS in G. barbadense breeding programmes. PMID- 29321343 TI - Population genetic diversity of marble goby (Oxyeleotris marmoratus) inferred from mitochondrial DNA and microsatellite analysis. PMID- 29321344 TI - A genetic variant in COL11A1 is functionally associated with lumbar disc herniation in Chinese population. AB - This study aimed to explore whether the genetic variant of COL11A1 is functionally associated with the development of lumbar disc herniation (LDH) in Chinese population. SNP rs1676486 of COL11A1 was genotyped in 647 patients and 532 healthy controls. The differences of genotype and allele distributions between LDH patients and healthy controls were evaluated using the chi2 test. One way ANOVA test was used to compare the relationship between genotypes and clinical features including tissue expression of COL11A1 and the degree of disc degeneration. Patients were found to have a significantly higher frequency of TT than the controls (10.2% versus 7.3%, P = 0.004). Besides, the frequency of allele T was found to be remarkably higher in the patients than the controls (34.8% versus 28.1%, P < 0.001) with an odds ratio of 1.36 (95% confidential interval=1.14-1.63). Patients with genotype TT were found to have remarkably more severe disc degeneration (P = 0.02). Besides, the expression of COL11A1 in the lumbar disc was significantly lower in the patients with genotype TT than in those with genotype CT or CC (P < 0.001). Moreover, the expression level was inversely correlated with the severity of disc degeneration (P < 0.001). We confirmed that the rs1676486 of COL11A may be functionally associated with LDH in the Chinese population. Extracellular matrix related proteins may play an important role in the pathogenesis of LDH. Our findings shed light on a better understanding of the pathogenesis of LDH, which could be a promising target for a novel treatment modality of LDH. PMID- 29321345 TI - Genetic variability and structure of an isolated population of Ambystoma altamirani, a mole salamander that lives in the mountains of one of the largest urban areas in the world. AB - Amphibians are globally threatened by habitat loss and fragmentation; species within the order Ambystoma are not the exception, as there are 18 species of mole salamanders in Mexico, of which 16 are endemic and all species are under some national or international status of protection. The mole salamander, Ambystoma altamirani is a microendemic species, which is distributed in central Mexico, within the trans-Mexican volcanic belt, and is one of the most threatened species due to habitat destruction and the introduction of exotic species. Nine microsatellite markers were used to determine the genetic structure, genetic variability, effective population size, presence of bottlenecks and inbreeding coefficient of one population of A. altamirani to generate information which might help to protect and conserve this threatened species. We found two genetic subpopulations with significant level of genetic structure (FST = 0.005) and high levels of genetic variability (Ho = 0.883; He = 0.621); we also found a small population size (Ne = 8.8), the presence of historical (M = 0.486) and recent bottlenecks under IAM and TPM models, with a low, but significant coefficient of inbreeding (FIS = -0.451). This information will help us to raise conservation strategies of this microendemic mole salamander species. PMID- 29321346 TI - Mutational screening of PKD2 gene in the north Indian polycystic kidney disease patients revealed 28 genetic variations. AB - Polycystic kidney disease (PKD) is a systemic disorder which adds majority of renal patients to end stage renal disease. Autosomal dominant polycystic kidney disease (ADPKD) is more prevalent and leading cause of dialysis and kidney transplant. Linkage analysis revealed some closely linked loci, two of which are identified as PKD1, PKD2 and an unidentified locus to ADPKD. This study was performed using PCR and automated DNA sequencing in 84 cases and 80 controls to test potential candidature of PKD2 as underlying cause of PKD by in silico and statistical analyses. Two associated symptoms, hypertension (19%) and liver cyst (31%) havemajor contribution to PKD. Gender-based analysis revealed that familial female patients (27%) and familialmale patients (33%) are more hypertensive. Liver cyst, the second major contributing symptom presented by large percentage of sporadic males (46%). Genetic screening of all 15 exons of PKD2 revealed eight pathogenic (c.854_854delG, c.915C>A, c.973C>T, c.1050_1050delC, c.1604_1604delT, c.1790T>C, c.2182_2183delAG, c.2224C>T) and eight likely pathogenic (g.11732A>G, c.646T>C, c.1354A>G, g.39212G>C, c.1789C>A, c.1849C>A, c.2164G>T, c.2494A>G)DNA sequence variants. In our study, 27.38% (23/84) cases shown pathogenic / likely pathogenic variants in PKD2 gene. Some regions of PKD2 prone for genetic variation suggested to be linked with disease pathogenesis. This noticeable hot spot regions hold higher frequency (50%) of pathogenic / likely pathogenic genetic variants constituting single nucleotide variants than large deletion and insertion that actually represents only 41.08% of coding sequence of PKD2. Statistically significant association for IVS3-22AA genotype was observed with PKD, while association of IVS4+62C>T was found insignificant. PMID- 29321347 TI - Identification of housekeeping genes as references for quantitative real-time RT PCR analysis in Misgurnus anguillicaudatus. AB - Quantitative real-time reverse transcription-polymerase chain reaction (qRT-PCR) is a well-known method to quantify gene expression by comparing with the reference genes. Generally, housekeeping genes were set as references, as for their stable expression in varying conditions. Here, we try to evaluate few of such genes to identify suitable housekeeping genes as references for qRT-PCR analysis of gene expression in Misgurnus anguillicaudatus. This study evaluated the expression of four commonly used housekeeping genes, i.e. b-actin (ACTB), elongation factor 1 alpha (EF-1a), glyceraldehyde-3-phosphate (GAPDH) and 18S ribosomal RNA (18S rRNA), in gender difference, effects of tissue type, different developmental stages, chemical treatment of embryos/larvae with commonly used vehicles for administration and agents that represent known environmental toxicant. Rank ordering of expression stability was done using geNorm, NormFinder and BestKeeper algorithms. Results suggested that in the qRTPCR test, in all the experimental conditions, EF-1a could be selected as reference gene when analysing a target gene. For the study of different development stages, ACTB could be a candidate as reference gene. For the studies associated with different gender and tissue types, EF-1a would be better targeted as reference gene. Meanwhile, in toxicant treatment, expression of EF-1a seems to be more stable than others and could be considered as reference gene. This study could provide useful guidelines that can be expected to aid M. anguillicaudatus researchers in their initial choice of housekeeping genes for future studies and enable more accurate normalization of gene expression data. PMID- 29321348 TI - Influence of thiopurine methyltransferase gene polymorphism on Egyptian children with acute lymphoblastic leukaemia. AB - Thiopurine methyltransferase (TPMT) gene polymorphism regulates thiopurine therapeutic efficacy and toxicity. The aim of this study was to determine the influence of TPMT gene polymorphism in Egyptian children with acute lymphoblastic leukaemia (ALL). Sixty-four patients with ALL, T lineage (27%) and pre-B phenotype (73%), who were treated with BFM 90 or CCG 1991 standard risk protocol, and who also experiencedmyleosuppresion toxicity and required interruption and/ormodification of thiopurine chemotherapy were recruited over a year period. Thirty-two patients were on maintenance and another 32 completed their chemotherapy. Seventy healthy age-matched and sex-matched children served as controls. They were subjected to clinical assessment, haematological panel investigations and TPMT gene polymorphism for G238C, G460A and A719G alleles assessment using PCRfollowed byRFLP analysis.Although none of the studied patients had themutantTPMTvariant alleles,myelosuppression toxicity in the form of different degree of neutropenia was detected in all patients. As a result of myelosuppression toxicity, most of the patients needed 6-MP dose modification either once (53.1%), twice (15.6%), or >= thrice (25.1%) during their maintenance course and 96.9% of the patients required to stop 6-MP for less than a week (62.5%), up to 2 weeks (28.1%), or > 2 weeks (6.3%). Patients also developed infection who mostly (71%) needed hospitalization. None of the studied G238C, G460A and A719G TPMT variant alleles were detected. Infections and febrile neutropenia were common causes of 6-PM dose modification and interruption. PMID- 29321349 TI - Analysis of two susceptibility SNPs in HLA region and evidence of interaction between rs6457617 in HLA-DQB1 and HLA-DRB1*04 locus on Tunisian rheumatoid arthritis. AB - Previous genomewide association studies (GWAS) and meta-analyses have enumerated several genes/loci in major histocompatibility complex region, which are consistently associated with rheumatoid arthritis (RA) in different ethnic populations. Given the genetic heterogeneity of the disease, it is necessary to replicate these susceptibility loci in other populations. In this case, we investigate the analysis of two SNPs, rs13192471 and rs6457617, from the human leukocyte antigen (HLA) region with the risk of RA in Tunisian population. These SNPs were previously identified to have a strong RA association signal in several GWAS studies. A case-control sample composed of 142 RA patients and 123 healthy controls was analysed. Genotyping of rs13192471 and rs6457617 was carried out using real-time PCR methods by TaqMan allelic discrimination assay. A trend of significant association was found in rs6457617 TT genotype with susceptibility to RA (P = 0.04, pc = 0.08, OR = 1.73). Moreover, using multivariable analysis, the combination of rs6457617*TT-HLA-DRB1*04+ increased risk of RA (OR = 2.38), which suggest a gene-gene interaction event between rs6457617 located within the HLA DQB1 and HLA-DRB1. Additionally, haplotypic analysis highlighted a significant association of rs6457617*T-HLA-DRB1*04+ haplotype with susceptibility to RA (P = 0.018, pc = 0.036, OR = 1.72). An evidence of association was shown subsequently in antiCCP+ subgroup with rs6457617 both in T allele and TT genotype (P = 0.01, pc = 0.03, OR = 1.66 and P = 0.008, pc = 0.024, OR = 1.28, respectively). However, no association was shown for rs13192471 polymorphism with susceptibility and severity to RA. This study suggests the involvement of rs6457617 locus as risk variant for susceptibility/severity to RA in Tunisian population. Secondly, it highlights the gene-gene interaction between HLA-DQB1 and HLA-DRB1. PMID- 29321350 TI - Neuro-fuzzy model of homocysteine metabolism. AB - In view of well-documented association of hyperhomocysteinaemia with a wide spectrum of diseases and higher incidence of vitamin deficiencies in Indians, we proposed a mathematical model to forecast the role of demographic and genetic variables in influencing homocysteinemetabolism and investigated the influence of life style modulations in controlling homocysteine levels. Total plasma homocysteine levels were measured in fasting samples using reverse phase HPLC. Multiple linear regression (MLR) and neuro-fuzzy models were developed. The MLR model explained 64% variability in homocysteine, while the neurofuzzy model showed higher accuracy in predicting homocysteine with a mean absolute error of 0.00002 MUmol/L. Methylene tetrahydrofolate reductase (MTHFR) C677T, 5 methyltetrahydrofolate homocysteine methyltransferase (MTR) A2756G and 5- methyltetrahydrofolate homocysteine methyltransferase reductase (MTRR) A66G were shown to be positively associatiated with homocysteine, while nonvegetarian diet, serine hydroxymethyltransferase 1 (SHMT1) C1420T and TYMS 5'-UTR 28 bp tandem repeat exhibited negative association with homocysteine. The protective role of SHMT1 C1420T was attributed to more H-bonding interactions in the mutant modelled compared to the wild type, as shown through in silico analysis. To conclude, polymorphisms in genes regulating remethylation of homocysteine strongly influence homocysteine levels. The restoration of one-carbon homeostasis by SHMT1 C1420T or increased flux of folate towards remethylation due to TYMS 5'-UTR 28 bp tandem repeat or nonvegetarian diet can lower homocysteine levels. PMID- 29321351 TI - Glutathione S-transferase P1 gene polymorphisms and susceptibility to coronary artery disease in a subgroup of north Indian population. AB - The present study aimed to investigate the association of g.313A>G and g.341C>T polymorphisms of GSTP1 with coronary artery disease (CAD) in a subgroup of north Indian population. In the present case-control study, CAD patients (n = 200) and age-matched, sex-matched and ethnicity-matched healthy controls (n = 200) were genotyped for polymorphisms in GSTP1 using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method. Genotype distribution of g.313A>Gand g.341C>T polymorphisms of GSTP1 gene was significantly different between cases and controls (P = 0.005 and 0.024, respectively). Binary logistic regression analysis showed significant association of A/G (odds ratio (OR): 1.6, 95% CI: 1.08-2.49, P = 0.020) and G/G (OR: 3.1, 95% CI: 1.41-6.71, P = 0.005) genotypes of GSTP1 g.313A>G, and C/T (OR: 5.8, 95% CI: 1.26-26.34, P = 0.024) genotype of GSTP1 g.341C>T with CAD. The A/G and G/G genotypes of g.313A>G and C/T genotype of g.341C>T conferred 6.5-fold increased risk for CAD (OR: 6.5, 95% CI: 1.37-31.27, P = 0.018).Moreover, the recessive model of GSTP1 g.313A>G is the best fit inheritance model to predict the susceptible gene effect (OR: 2.3, 95% CI: 1.11-4.92, P = 0.020). In conclusion, statistically significant associations of GSTP1 g.313A>G (A/G, G/G) and g.341C>T (C/T) genotypes with CAD were observed. PMID- 29321352 TI - Genetic analysis of 55 northern Vietnamese patients with Wilson disease: seven novel mutations in ATP7B. AB - Wilson disease (WD) is an autosomal recessive disorder of copper metabolism. The gene responsible for WD was discovered in 1993 and is located on chromosome 13 at 13q14.3. It encodes a copper-specific transporting P-type ATPase. Early diagnosis can improve treatment outcome and decrease the rate of disability or even mortality.We used Sanger sequencing to identify mutation hot spots in 55 northern Vietnamese with a clinical diagnosis of WD. Mutations were screened and detected by direct DNA sequencing. A total of 26 different ATP7B gene mutations were identified, including seven novel mutations (five nonsense and two missense mutations). The most frequent mutations were p.Ser105Ter (24.55%), p.Arg778Leu (5.45%) and p.Thr850Ile (4.55%). Mutation detection rate in exon 2 was 34.55% and ranked first, followed by exon 8 with 16.36%, and exon 18 with 10.91% each, thus, exons 2, 8 and 18 are the mutation hot spots for northern VietnameseWD patients. These findings were different from previous studies in Asia. Our research established a suitable strategy for ATP7B gene testing in northern Vietnamese WD patients. PMID- 29321353 TI - Identification and association of novel lncRNA pouMU1 gene mutations with chicken performance traits. AB - The biological functions of long noncoding RNAs (lncRNAs), which play an important role in regulating development and gene expression, may be affected by variations in lncRNA gene loci or associated genomic sequences. However, the functions of many lncRNAs remain unknown. To analyse correlations between mutations in pouMU1 with chicken growth and carcass traits, 860 chickens from a Gushi*Anka F2 resource population and 96 Lushi, Xichuan, Changshun and recessive white chickens were used to evaluate the genetic effect of the pouMU1 gene. We performed quantitative real-time polymerase chain reaction (qRT-PCR) to analyse the relative expression levels of pouMU1 in nine different tissues and stages of development. pouMU1 expression was highest in pectoralis and leg muscles, whereas no expression was observed in the heart, liver and abdominal fat. Using direct sequencing and polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) methods, two novel sequence mutations (g.1198A>G and g.1238 1239del/insGA) were detected in the pouMU1 gene. SPSS software was used for statistical analysis in association studies. Based on the association data, the presence of both variants was significantly associated with leg muscle fibre width and leg muscle fibre roundness (P < 0.05) and highly associated with leg muscle fibre girth and body weight at 0 week of age (P < 0.01). These data suggest that pouMU1 might participate in regulating chicken muscle development and growth, and the findings offer new insight into the functions of sequence mutations in lncRNAs. PMID- 29321354 TI - Marker-assisted pyramiding of Thinopyrum-derived leaf rust resistance genes Lr19 and Lr24 in bread wheat variety HD2733. AB - This study was undertaken to pyramid two effective leaf rust resistance genes (Lr19 and Lr24) derived from Thinopyrum (syn. Agropyron), in the susceptible, but agronomically superior wheat cultivar HD2733 using marker-assisted selection. In the year 2001, HD2733 was released for irrigated timely sown conditions of the north eastern plains zone (NEPZ) of India became susceptible to leaf rust, a major disease of the region. Background selection helped in developing near isogenic lines (NILs) of HD2733 with Lr19 and Lr24 with 97.27 and 98.94%, respectively, of genomic similarity with the parent cultivar, after two backcrossing and one generation of selfing.NILs were intercrossed to combine the genes Lr19 and Lr24. The combination of these two genes in the cultivar HD2733 is expected to provide durable leaf rust resistance in farmers' fields. PMID- 29321355 TI - Genetic diversity, phylogeographic structure and effect of selection at the mitochondrial hypervariable region of Nigerian chicken populations. AB - In this study, the maternal genetic diversity, phylogenetic relationship and effect of natural selection on indigenous chickens from Nigeria were assessed. A total of 397-bp fragment of the mitochondrial DNA (mtDNA) D-loop region of 171 indigenous chickens from four populations of Nigeria and four commercial egg line strains (two Anak titan, one Giriraja and one Yaffa) as out-groups were analysed. Thirty-one haplotypes (28 from Nigerian chickens and three from commercial strains) and 34 polymorphic sites were identified. The mean haplotypic and nucleotide diversity were found to be 0.39 +/- 0.05 and 0.02 +/- 0.02, respectively. Majority of Nigerian chicken haplotypes observed were grouped into haplogroup D which originated from Indian subcontinent, suggesting a single maternal lineage. Genetic variation within and between populations accounted for 97.30 and 2.70% of the total genetic variation, respectively, which is in agreement with a recent and maternal founding effect. High number (4) of negatively selected sites observed based on single likelihood ancestral counting (SLAC) model indicated that the sampled Nigerian chicken populations were undergoing purifying selection. This study concluded that there was relatively high genetic diversity and differentiation, thus, this information will probably paveway for further evaluation studies, preservation and improvement of Nigerian chickens as genetic resources towards ensuring food security. PMID- 29321357 TI - Mapping of Id locus for dermal shank melanin in a Chinese indigenous chicken breed. AB - The dermal shank pigmentation, one of the defining traits of chicken breeds, is caused by an abnormal deposition of melanin in the dermis of the shank. The abnormal deposition is controlled by the sex-linked inhibitor of dermal melanin (Id). In this study, we aim to locate the gene responsible for the dermal shank pigmentation in chickens by an association analysis and a differential expression analysis. Based on our results, 72 single-nucleotide polymorphisms (SNPs) located in Z chromosome (chrZ): 71-73 Mb (galGal3) were selected to further explore their relationships with the dermal shank pigmentation in pure lines of 96 Gushi hens and 96 Gushi hens with a yellow shank skin colour. The results of the association analysis showed that the SNPs located in chrZ: 72.58-72.99 Mb (galGal3) (chrZ: 79.02-79.44 Mb (galGal4)) are significantly associated with the dermal shank pigmentation. Based on the results of our previous studies and the present association analysis, the zinc-finger protein 608 (ZNF608), GRAM domain containing 3 (GRAMD3), aldehyde dehydrogenase 7 family member A1 (ALDH7A1), fem-1 homologue C (FEM1C), beta-1,4-galactosyltransferase 1 (B4GALT1) and versican (VCAN) genes were selected for the differential expression analysis. The gene expression profiles showed that the expression of GRAMD3 gene in the dermis tissues of the shank was significantly (P = 0.010738 < 0.05) higher in 350-day old Gushi chickens characterized by the dermal shank pigmentation than in one-day old Gushi chickens. The dermal shank pigmentation was not present in the one-day old Gushi chickens. Additionally, the results of the association analysis and the expression analysis showed that GRAMD3 could be the most likely candidate gene for the Id locus. However, we did not detect a mutation, i.e. significantly associated with this trait within GRAMD3. Therefore, we concluded that the variations located in the flanking region of GRAMD3 led to the abnormal expression of GRAMD3, which requires further study. PMID- 29321356 TI - The connexin 46 mutant (V44M) impairs gap junction function causing congenital cataract. AB - Connexin 46 (Cx46) is important for gap junction channels formation which plays crucial role in the preservation of lens homeostasis and transparency. Previously, we have identified a missense mutation (p.V44M) of Cx46 in a congenital cataract family. This study aims at dissecting the potential pathogenesis of the causative mutant of cataract. Plasmids carrying wild-type (wt) and mutant (V44M) of Cx46 were constructed and expressed in Hela cells respectively.Western blotting and fluorescence microscopy were applied to analyse the expression and subcellular localization of recombinant proteins, respectively. Scrape loading dye transfer experiment was performed to detect the transfer capability of gap junction channels among cells expressed V44Mmutant. The results demonstrated that in transfected Hela cells, both wt-Cx46 and Cx46 V44M were localized abundantly in the plasma membrane. No significant difference was found between the protein expressions of the two types of Cx46. The fluorescent localization assay revealed the plaque formation, significantly reduced in the cells expressing Cx46 V44M. Immunoblotting analysis demonstrated that formation of Triton X-100 insoluble complex decreased obviously in mutant Cx46. Additionally, the scrape-loading dye-transfer experiment showed a lower dye diffusion distance of Cx46 V44M cells, which indicates that the gap junction intercellular communication activity was aberrant. Human Cx46 V44M mutant causing cataracts result in abnormally decreased formation of gap junction plaques and impaired gap junction channel function. PMID- 29321358 TI - Genetic variants influencing lipid levels and risk of dyslipidemia in Chinese population. AB - Recently, several human genetic and genomewide association studies (GWAS) have discovered many genetic loci that are associated with the concentration of the blood lipids. To confirm the reported loci in Chinese population, we conducted a crosssection study to analyse the association of 25 reported SNPs, genotyped by the ABI SNaPshot method, with the blood levels of total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and triglycerides (TG) in 1900 individuals by multivariate analysis. Logistic regression was applied to assess the association of the genetic loci with the risk of different types of dyslipidemia. Our study has convincingly identified that 12 of 25 studied SNPs were strongly associated with one or more blood lipid parameters (TC, LDL, HDL and TG). Among the 12 associated SNPs, 10 significantly influence the risk of one or more types of dyslipidemia.We firstly found four SNPs (rs12654264 in HMGCR; rs2479409 in PCSK9; rs16996148 in CILP2, PBX4; rs4420638 in APOE-C1-C4-C2) robustly and independently associate with four types of dyslipidemia (MHL, mixed hyperlipidemia; IHTC, isolated hypercholesterolemia; ILH, isolated low HDL-C; IHTG, isolated hypertriglyceridemia). Our results suggest that genetic susceptibility is different on the same candidate locus for the different populations. Meanwhile, most of the reported genetic variants strongly influence one or more plasma lipid levels and the risk of dyslipidemia in Chinese population. PMID- 29321359 TI - Association of lactase 13910 C/T polymorphism with bone mineral density and fracture risk: a meta-analysis. AB - A number of studies have investigated the association of lactase (LCT,C/T-13910) gene polymorphismwith bonemineral density (BMD) and fracture risk, but previous results were inconclusive. In this study, a meta-analysis was performed to quantify the association of LCT (C/T-13910) polymorphism with BMD and fracture risk. Eligible publications were searched in the PubMed, Web of Science, Embase databases, Google Scholar, Yahoo and Baidu. Pooled weighed mean difference (WMD) or odds ratio (OR) with their 95% confidence interval (CI) were calculated using a fixed-effects or random-effects model. A total of nine articles with 8871 subjects were investigated in the presentmeta-analysis. Overall, the TT/TC genotypes of LCT 13910 C/T polymorphism showed significantly higher BMD than those with the CC genotype at femur neck (FN) (WMD = 0.011 g/cm2, 95% CI = 0.004 0.018, P = 0.003). Besides, LCT 13910 C/T polymorphism may decrease the risk of any site fractures (for TT versus TC+CC, OR = 0.813, 95% CI = 0.704-0.938, P = 0.005; for T allele versus C allele, OR = 0.885, 95% CI = 0.792-0.989, P = 0.032). However, there was no significant association of LCT 13910 C/T polymorphism with BMD at lumbar spine and risk of vertebral fractures under all genetic contrast models (all P values were >0.05). The meta-analysis suggests that there are significant effects of LCT 13910 C/T polymorphism on BMD and fracture risk. Large-scale studies with different ethnic populations will be needed to further investigate the possible race-specific effect of LCT 13910 C/T polymorphism on BMD and fracture risk. PMID- 29321360 TI - Ellis-van Creveld syndrome and profound deafness resulted by sequence variants in the EVC/EVC2 and TMC1 genes. AB - Ellis-van Creveld syndrome is an autosomal recessive skeletal dysplasia primarily characterized by the features such as disproportionate dwarfism, short ribs, short limbs, dysplastic nails, cardiovascular malformations, post-axial polydactyly (PAP) (bilateral) of hands and feet. EVC/EVC2 located in head-to-head arrangement on chromosome 4p16 are the causative genes for EvC syndrome. In the study, we present two families, A and B, with Pakistani and Republic of Kosovo origin, respectively. They showed features of EvC syndrome and were clinically and genetically characterized. In family A, the affected members showed an additional feature of profound deafness. The whole exome sequencing (WES) in this family revealed two homozygous variants in EVC2 (c.30dupC; p.Thr11Hisfs*45) and TMC1 (c.1696-1G>A) genes. In family B, WES revealed novel compound heterozygous variants (p.Ser307Pro, c.2894+3A>G) in the EVC gene. This study reports first case of variants in the genes causing EvC syndrome and profound deafness in the same family. PMID- 29321361 TI - A novel contiguous deletion involving NDP, MAOB and EFHC2 gene in a patient with familial Norrie disease: bilateral blindness and leucocoria without other deficits. AB - Contiguous microdeletions of the Norrie disease pseudoglioma (NDP) region on chromosome Xp11.3 have been widely confirmed as contributing to the typical clinical features of Norrie disease (ND). However, the precise relation between genotype and phenotype could vary. The contiguous deletion of NDP and its neighbouring genes, MAOA/B and EFHC2, reportedly leads to syndromic clinical features such as microcephaly, intellectual disability, and epilepsy. Herewe report a novel contiguous microdeletion of the NDP region containing the MAOB and EFHC2 genes,which causes eye defects but no cognitive disability.We detected a deletion of 494.6 kb atXp11.3 in both the proband and carrier mother. This deletionwas then used as the molecular marker in prenatal diagnosis for two subsequent pregnancies. The deletion was absent in one of the foetuses, who remain without any abnormalities at 2 years of age. The proband shows the typical ocular clinical features of ND including bilateral retinal detachment, microphthalmia, atrophic irides, corneal opacification, and cataracts, but no symptoms of microcephaly, intellectual disability, and epilepsy. This familial study demonstrates that a deficiency in one of two MAO genes may not lead to psychomotor delay, and deletion of EFHC2 may not cause epilepsy. Our observations provide new information on the genotype-phenotype relations of MAOA/B and EFHC2 genes involved in the contiguous deletions of ND. PMID- 29321362 TI - A novel missense mutation of ADAR1 gene in a Chinese family leading to dyschromatosis symmetrica hereditaria and literature review. AB - Dyschromatosis symmetrica hereditaria (DSH) is a rare autosomal dominant pigmentary genodermatosis, which is characterized by a mixture of hyperpigmented and hypopigmented macules on the dorsal of the hands and feet, and on the face presented like freckle. Identification of RNA-specific adenosine deaminase 1 (ADAR1) gene results in DSH. This study was mainly to explore the pathogenic mutation of ADAR1 gene and provide genetics counselling and prenatal diagnostic testing for childbearing individuals.Mutational analysis of ADAR1 gene was performed by polymerase chain reaction (PCR) and electrophoretic separation of PCR products by 1.5% agarose gel electrophoresis. The coding exons and intron/exon flanking regions followed by bidirectional sequencing was performed on all participants. In this study, we found that a 28 year-old male patient harbouring a deleterious substitution of Leu1052Pro in the ADAR1 gene in a typical DSH family. His mother suffered from the DSH also owns the same mutation. This mutation, however, is not identified in the unaffected members in this family and those 200 normal controls. In summary, this new mutation Leu1052Pro reported here is pathogenic and detrimental for DSH. Our finding not only enriches mutation database and contributes to dissecting further the correlation between mutation position and phenotypical features of DSH, but also provides genetics counselling and prenatal diagnostic testing for childbearing couple. PMID- 29321363 TI - Dominance effects estimation of TLR4 and CACNA2D1 genes for health and production traits using logistic regression. AB - Knowledge of nonadditive variance and genetic effects can be helpful in explaining the total genetic variation formost of the traits. The objective of this study was to estimate dominance effects of several single-nucleotide polymorphism (SNP) genotypes for the production traits and clinical mastitis residual (CMR), in Holstein dairy cattle in a case-control study. Records of 305 days lactation were obtained for production traits and CMR. Animals were selected based on extreme values for CMR from mixed model analyses. Samples were genotyped for four SNP-single genotypes and their associations with production traits (breeding values for protein and fat yield, and protein and fat percentage) were estimated by applying logistic regression analyses. Calculation of contrast between both homozygous and heterozygous genotypes permitted to estimate dominance effects, which ranged from -0.49 to 0.35 standard deviation units for the production traits and clinical mastitis (CM), respectively. Results showed that the dominance effects may be important in contribution of total genetic effects for production traits and CM. Therefore, evaluation of animals based on additive variance alone and disregarding nonadditive effects may lead to failure in selection programmes and exactly estimating the genetic variation. The method that we used would help breeders in accurately estimation of genotypic values in a new genomic selection scenario including dominance effects. PMID- 29321364 TI - Illumina-based de novo transcriptome sequencing and analysis of Chinese forest musk deer. AB - The Chinese forest musk deer (Moschus berezovskii Flerov) is an endangered artiodactyl mammal. The musk secreted by sexually mature males is highly valued for alleged pharmaceutical properties and perfume manufacturing. However, the genomic and transcriptomic resources of musk deer remain deficiently represented and poorly understood. Next-generation sequencing technique is an efficient method for generating an enormous amount of sequence data that can represent a large number of genes and their expression levels. In the present study, we used Illumina HiSeq technology to perform de novo assembly of heart and musk gland transcriptomes from the Chinese forest musk deer. A total of 239,383 transcripts and 176,450 unigenes were obtained, of which 37,329 unigenes were matched to known sequences in the NCBI nonredundant protein (Nr) database; 31,039 unigenes were assigned to 61 GO terms, and 11,782 to 332 KEGG pathways. Additionally, 592 and 2282 differentially expressed genes were found to be specifically expressed in the heart and musk gland, respectively. The abundant transcriptomic data generated in the present report will provide a comprehensive sequence resource for Chinese forest musk deer as well as lay down a foundation which will help in accelerating genetic and functional genomics research in this species. PMID- 29321365 TI - Genome-based exome sequencing analysis identifies GYG1, DIS3L and DDRGK1 are associated with myocardial infarction in Koreans. AB - Myocardial infarction (MI) is a complex disease caused by combination of genetic and environmental factors. Although genome-wide association studies (GWAS) identified more than 46 risk loci which are associated with coronary artery disease and MI, most of the genetic variability inMI still remains undefined. Here, we screened the susceptibility loci for MI using exome sequencing and validated candidate variants in replication sets. We identified that three genes (GYG1, DIS3L and DDRGK1) were associated with MI at the discovery and replication stages. Further research will be required to determine the functional association of these genes with MI risk, and these associations have to be confirmed in other ethnic populations. PMID- 29321366 TI - Venous thromboembolism associated with protein S deficiency due to Arg451* mutation in PROS1 gene: a case report and a literature review. AB - Protein S (PS) is a vitaminK-dependent glycoproteinwhich plays an important role in the regulation of blood coagulation. PS deficiency has been found in 1.5-7% of thrombophilic patients. Here, we report the first Polish case with PS deficiency caused by the p.Arg451* in the PROS1 gene detected in a 21-year-old man with trauma-induced venous thromboembolism. To our knowledge, we provided the review of all the available data on this mutation (a total of 56 cases). The proband, his mother and his sister were screened for thrombophilia. To elucidate genetic background of PS deficiency, all PROS1 genes were subjected to direct sequencing. The free PS levels were 35% in the proband, 21% in the proband's mother and 28% in the proband's sister and their PS total levels were 37.1, 47.5 and 55.1%, respectively. Type I PS deficiency was diagnosed. In all patients, genetic analysis revealed the presence of heterozygous nonsense mutation (c.1351C>T; p.Arg451*) located in exon 12 of PROS1 gene. This mutation interrupts the reading frame by premature termination codon at position 451 and may lead to the production of truncated protein. The present case combined with the review of the literature suggests that p.Arg451* in the PROS1 gene mainly leads to clinically evident thrombosis following trauma, surgery or serious comorbidities especially malignancy. PMID- 29321367 TI - Drosophila pallidosa: whether a separate species or a light form of D. ananassae. AB - Drosophila pallidosa belongs to the D. ananassae complex, which includes a total of 10 species. Earlier D. pallidosa was known as light form of D. ananassae but later it was described as a new species, sibling of D. ananassae. Both these terms, light form and sibling species were used by Futch. This makes the taxonomic status of D. pallidosa confusing. In this review we have tried to understand the actual status of this sibling species pair. Considering the similarities and dissimilarities, we suggest that D. pallidosa does not have the full status of a species, rather it is in the process of speciation, statu nascendi. Our suggestion is strengthened by the fact that male genitalia are identical in both the cases and they lack postmating reproductive isolation since hybrids between them are normal and fully fertile. PMID- 29321368 TI - VKOR paralog VKORC1L1 supports vitamin K-dependent protein carboxylation in vivo. AB - Vertebrates possess 2 proteins with vitamin K oxidoreductase (VKOR) activity: VKORC1, whose vitamin K reduction supports vitamin K-dependent (VKD) protein carboxylation, and VKORC1-like 1 (VKORC1L1), whose function is unknown. VKD proteins include liver-derived coagulation factors, and hemorrhaging and lethality were previously observed in mice lacking either VKORC1 or the gamma glutamyl carboxylase (GGCX) that modifies VKD proteins. Vkorc1-/- mice survived longer (1 week) than Ggcx-/- mice (midembryogenesis or birth), and we assessed whether VKORC1L1 could account for this difference. We found that Vkorc1-/ ;Vkorc1l1-/- mice died at birth with severe hemorrhaging, indicating that VKORC1L1 supports carboxylation during the pre- and perinatal periods. Additional studies showed that only VKORC1 sustains hemostasis beyond P7. VKORC1 expression and VKOR activity increased during late embryogenesis and following birth, while VKORC1L1 expression was unchanged. At P0, most (>99%) VKOR activity was due to VKORC1. Prothrombin mRNA, protein, and carboxylation also increased during this period, as did mRNA levels of coagulation factors encoding genes F7, F9, and F10. VKORC1L1 levels in Vkorc1-/- mouse liver may therefore be insufficient for supporting carboxylation beyond day 7. In support of this conclusion, VKORC1L1 overexpression in liver rescued carboxylation and hemostasis in adult Vkorc1-/- mice. These findings establish that VKORC1L1 supports VKD protein carboxylation in vivo. PMID- 29321370 TI - Activation-induced cytidine deaminase deficiency accelerates autoimmune diabetes in NOD mice. AB - B cells play an important role in type 1 diabetes (T1D) development. However, the role of B cell activation-induced cytidine deaminase (AID) in diabetes development is not clear. We hypothesized that AID is important in the immunopathogenesis of T1D. To test this hypothesis, we generated AID-deficient (AID-/-) NOD mice. We found that AID-/-NOD mice developed accelerated T1D, with worse insulitis and high levels of anti-insulin autoantibody in the circulation. Interestingly, neither maternal IgG transferred through placenta, nor IgA transferred through milk affected the accelerated diabetes development. AID-/-NOD mice showed increased activation and proliferation of B and T cells. We found enhanced T-B cell interactions in AID-/-NOD mice, with increased T-bet and IFN gamma expression in CD4+ T cells in the presence of AID-/- B cells. Moreover, excessive lymphoid expansion was observed in AID-/-NOD mice. Importantly, antigen specific BDC2.5 CD4+ T cells caused more rapid onset of diabetes when cotransferred with AID-/- B cells than when cotransferred with AID+/+ B cells. Thus, our study provides insights into the role of AID in T1D. Our data also suggest that AID is a negative regulator of immune tolerance and ablation of AID can lead to exacerbated islet autoimmunity and accelerated T1D development. PMID- 29321369 TI - Enhancing CAR T cell persistence through ICOS and 4-1BB costimulation. AB - Successful tumor eradication by chimeric antigen receptor-expressing (CAR expressing) T lymphocytes depends on CAR T cell persistence and effector function. We hypothesized that CD4+ and CD8+ T cells may exhibit distinct persistence and effector phenotypes, depending on the identity of specific intracellular signaling domains (ICDs) used to generate the CAR. First, we demonstrate that the ICOS ICD dramatically enhanced the in vivo persistence of CAR-expressing CD4+ T cells that, in turn, increased the persistence of CD8+ T cells expressing either CD28- or 4-1BB-based CARs. These data indicate that persistence of CD8+ T cells was highly dependent on a helper effect provided by the ICD used to redirect CD4+ T cells. Second, we discovered that combining ICOS and 4-1BB ICDs in a third-generation CAR displayed superior antitumor effects and increased persistence in vivo. Interestingly, we found that the membrane-proximal ICD displayed a dominant effect over the distal domain in third-generation CARs. The optimal antitumor and persistence benefits observed in third-generation ICOSBBz CAR T cells required the ICOS ICD to be positioned proximal to the cell membrane and linked to the ICOS transmembrane domain. Thus, CARs with ICOS and 4 1BB ICD demonstrate increased efficacy in solid tumor models over our current 4 1BB-based CAR and are promising therapeutics for clinical testing. PMID- 29321371 TI - Assessing drug efficacy against Plasmodium falciparum liver stages in vivo. AB - Malaria eradication necessitates new tools to fight the evolving and complex Plasmodium pathogens. These tools include prophylactic drugs that eliminate Plasmodium liver stages and consequently prevent clinical disease, decrease transmission, and reduce the propensity for resistance development. Currently, the identification of these drugs relies on in vitro P. falciparum liver stage assays or in vivo causal prophylaxis assays using rodent malaria parasites; there is no method to directly test in vivo liver stage activity of candidate antimalarials against the human malaria-causing parasite P. falciparum. Here, we use a liver-chimeric humanized mouse (FRG huHep) to demonstrate in vivo P. falciparum liver stage development and describe the efficacy of clinically used and candidate antimalarials with prophylactic activity. We show that daily administration of atovaquone-proguanil (ATQ-PG; ATQ, 30 mg/kg, and PG, 10 mg/kg) protects 5 of 5 mice from liver stage infection, consistent with the use in humans as a causal prophylactic drug. Single-dose primaquine (60 mg/kg) has similar activity to that observed in humans, demonstrating the activity of this drug (and its active metabolites) in FRG huHep mice. We also show that DSM265, a selective Plasmodial dihydroorotate dehydrogenase inhibitor with causal prophylactic activity in humans, reduces liver stage burden in FRG huHep mice. Finally, we measured liver stage-to-blood stage transition of the parasite, the ultimate readout of prophylactic activity and measurement of infective capacity of parasites in the liver, to show that ATQ-PG reduces blood stage patency to below the limit of quantitation by quantitative PCR (qPCR). The FRG huHep model, thus, provides a platform for preclinical evaluation of drug candidates for liver stage causal prophylactic activity, pharmacokinetic/pharmacodynamics studies, and biological studies to investigate the mechanism of action of liver stage active antimalarials. PMID- 29321372 TI - Chronic skin inflammation accelerates macrophage cholesterol crystal formation and atherosclerosis. AB - Inflammation is critical to atherogenesis. Psoriasis is a chronic inflammatory skin disease that accelerates atherosclerosis in humans and provides a compelling model to understand potential pathways linking these diseases. A murine model capturing the vascular and metabolic diseases in psoriasis would accelerate our understanding and provide a platform to test emerging therapies. We aimed to characterize a new murine model of skin inflammation (Rac1V12) from a cardiovascular standpoint to identify novel atherosclerotic signaling pathways modulated in chronic skin inflammation. The RacV12 psoriasis mouse resembled the human disease state, including presence of systemic inflammation, dyslipidemia, and cardiometabolic dysfunction. Psoriasis macrophages had a proatherosclerotic phenotype with increased lipid uptake and foam cell formation, and also showed a 6-fold increase in cholesterol crystal formation. We generated a triple-genetic K14-RacV12-/+/Srb1-/-/ApoER61H/H mouse and confirmed psoriasis accelerates atherogenesis (~7-fold increase). Finally, we noted a 60% reduction in superoxide dismutase 2 (SOD2) expression in human psoriasis macrophages. When SOD2 activity was restored in macrophages, their proatherogenic phenotype reversed. We demonstrate that the K14-RacV12 murine model captures the cardiometabolic dysfunction and accelerates vascular disease observed in chronic inflammation and that skin inflammation induces a proatherosclerotic macrophage phenotype with impaired SOD2 function, which associated with accelerated atherogenesis. PMID- 29321373 TI - The current state of biomarkers of mild traumatic brain injury. AB - Mild traumatic brain injury (mTBI) is a common occurrence, with over 3 million cases reported every year in the United States. While research into the underlying pathophysiology is ongoing, there is an urgent need for better clinical guidelines that allow more consistent diagnosis of mTBI and ensure safe return-to-play timelines for athletes, nonathletes, and military personnel. The development of a suite of biomarkers that indicate the pathogenicity of mTBI could lead to clinically useful tools for establishing both diagnosis and prognosis. Here, we review the current evidence for mTBI biomarkers derived from investigations of the multifactorial pathology of mTBI. While the current literature lacks the scope and size for clarification of these biomarkers' clinical utility, early studies have identified some promising candidates. PMID- 29321374 TI - Selective CD28 blockade attenuates CTLA-4-dependent CD8+ memory T cell effector function and prolongs graft survival. AB - Memory T cells pose a significant problem to successful therapeutic control of unwanted immune responses during autoimmunity and transplantation, as they are differentially controlled by cosignaling receptors such as CD28 and CTLA-4. Treatment with abatacept and belatacept impede CD28 signaling by binding to CD80 and CD86, but they also have the unintended consequence of blocking the ligands for CTLA-4, a process that may inadvertently boost effector responses. Here, we show that a potentially novel anti-CD28 domain antibody (dAb) that selectively blocks CD28 but preserves CTLA-4 coinhibition confers improved allograft survival in sensitized recipients as compared with CTLA-4 Ig. However, both CTLA-4 Ig and anti-CD28 dAb similarly and significantly reduced the accumulation of donor reactive CD8+ memory T cells, demonstrating that regulation of the expansion of CD8+ memory T cell populations is controlled in part by CD28 signals and is not significantly impacted by CTLA-4. In contrast, selective CD28 blockade was superior to CTLA-4 Ig in inhibiting IFN-gamma, TNF, and IL-2 production by CD8+ memory T cells, which in turn resulted in reduced recruitment of innate CD11b+ monocytes into allografts. Importantly, this superiority was CTLA-4 dependent, demonstrating that effector function of CD8+ memory T cells is regulated by the balance of CD28 and CTLA-4 signaling. PMID- 29321375 TI - Highly potent visnagin derivatives inhibit Cyp1 and prevent doxorubicin cardiotoxicity. AB - Anthracyclines such as doxorubicin are highly effective chemotherapy agents used to treat many common malignancies. However, their use is limited by cardiotoxicity. We previously identified visnagin as protecting against doxorubicin toxicity in cardiac but not tumor cells. In this study, we sought to develop more potent visnagin analogs in order to use these analogs as tools to clarify the mechanisms of visnagin-mediated cardioprotection. Structure-activity relationship studies were performed in a zebrafish model of doxorubicin cardiomyopathy. Movement of the 5-carbonyl to the 7 position and addition of short ester side chains led to development of visnagin analogs with 1,000-fold increased potency in zebrafish and 250-fold increased potency in mice. Using proteomics, we discovered that doxorubicin caused robust induction of Cytochrome P450 family 1 (CYP1) that was mitigated by visnagin and its potent analog 23. Treatment with structurally divergent CYP1 inhibitors, as well as knockdown of CYP1A, prevented doxorubicin cardiomyopathy in zebrafish. The identification of potent cardioprotective agents may facilitate the development of new therapeutic strategies for patients receiving cardiotoxic chemotherapy. Moreover, these studies support the idea that CYP1 is an important contributor to doxorubicin cardiotoxicity and suggest that modulation of this pathway could be beneficial in the clinical setting. PMID- 29321376 TI - Retinal de novo lipogenesis coordinates neurotrophic signaling to maintain vision. AB - Membrane lipid composition is central to the highly specialized functions of neurological tissues. In the retina, abnormal lipid metabolism causes severe forms of blindness, often through poorly understood neuronal cell death. Here, we demonstrate that deleting the de novo lipogenic enzyme fatty acid synthase (FAS) from the neural retina, but not the vascular retina, results in progressive neurodegeneration and blindness with a temporal pattern resembling rodent models of retinitis pigmentosa. Blindness was not rescued by protection from light evoked activity; by eating a diet enriched in palmitate, the product of the FAS reaction; or by treatment with the PPARalpha agonist fenofibrate. Vision loss was due to aberrant synaptic structure, blunted responsiveness to glial-derived neurotrophic factor and ciliary neurotrophic factor, and eventual apoptotic cell loss. This progressive neurodegeneration was associated with decreased membrane cholesterol content, as well as loss of discrete n-3 polyunsaturated fatty acid- and saturated fatty acid-containing phospholipid species within specialized membrane microdomains. Neurotrophic signaling was restored by exogenous cholesterol delivery. These findings implicate de novo lipogenesis in neurotrophin-dependent cell survival by maintaining retinal membrane configuration and lipid composition, and they suggest that ongoing lipogenesis may be required to prevent cell death in many forms of retinopathy. PMID- 29321378 TI - Glutamine-derived 2-hydroxyglutarate is associated with disease progression in plasma cell malignancies. AB - The production of the oncometabolite 2-hydroxyglutarate (2-HG) has been associated with c-MYC overexpression. c-MYC also regulates glutamine metabolism and drives progression of asymptomatic precursor plasma cell (PC) malignancies to symptomatic multiple myeloma (MM). However, the presence of 2-HG and its clinical significance in PC malignancies is unknown. By performing 13C stable isotope resolved metabolomics (SIRM) using U[13C6]Glucose and U[13C5]Glutamine in human myeloma cell lines (HMCLs), we show that 2-HG is produced in clonal PCs and is derived predominantly from glutamine anaplerosis into the TCA cycle. Furthermore, the 13C SIRM studies in HMCLs also demonstrate that glutamine is preferentially utilized by the TCA cycle compared with glucose. Finally, measuring the levels of 2-HG in the BM supernatant and peripheral blood plasma from patients with precursor PC malignancies such as smoldering MM (SMM) demonstrates that relatively elevated levels of 2-HG are associated with higher levels of c-MYC expression in the BM clonal PCs and with a subsequent shorter time to progression (TTP) to MM. Thus, measuring 2-HG levels in BM supernatant or peripheral blood plasma of SMM patients offers potential early identification of those patients at high risk of progression to MM, who could benefit from early therapeutic intervention. PMID- 29321377 TI - Development of an airway mucus defect in the cystic fibrosis rat. AB - The mechanisms underlying the development and natural progression of the airway mucus defect in cystic fibrosis (CF) remain largely unclear. New animal models of CF, coupled with imaging using micro-optical coherence tomography, can lead to insights regarding these questions. The Cftr-/- (KO) rat allows for longitudinal examination of the development and progression of airway mucus abnormalities. The KO rat exhibits decreased periciliary depth, hyperacidic pH, and increased mucus solid content percentage; however, the transport rates and viscoelastic properties of the mucus are unaffected until the KO rat ages. Airway submucosal gland hypertrophy develops in the KO rat by 6 months of age. Only then does it induce increased mucus viscosity, collapse of the periciliary layer, and delayed mucociliary transport; stimulation of gland secretion potentiates this evolution. These findings could be reversed by bicarbonate repletion but not pH correction without counterion donation. These studies demonstrate that abnormal surface epithelium in CF does not cause delayed mucus transport in the absence of functional gland secretions. Furthermore, abnormal bicarbonate transport represents a specific target for restoring mucus clearance, independent of effects on periciliary collapse. Thus, mature airway secretions are required to manifest the CF defect primed by airway dehydration and bicarbonate deficiency. PMID- 29321379 TI - A glucose-responsive insulin therapy protects animals against hypoglycemia. AB - Hypoglycemia is commonly associated with insulin therapy, limiting both its safety and efficacy. The concept of modifying insulin to render its glucose responsive release from an injection depot (of an insulin complexed exogenously with a recombinant lectin) was proposed approximately 4 decades ago but has been challenging to achieve. Data presented here demonstrate that mannosylated insulin analogs can undergo an additional route of clearance as result of their interaction with endogenous mannose receptor (MR), and this can occur in a glucose-dependent fashion, with increased binding to MR at low glucose. Yet, these analogs retain capacity for binding to the insulin receptor (IR). When the blood glucose level is elevated, as in individuals with diabetes mellitus, MR binding diminishes due to glucose competition, leading to reduced MR-mediated clearance and increased partitioning for IR binding and consequent glucose lowering. These studies demonstrate that a glucose-dependent locus of insulin clearance and, hence, insulin action can be achieved by targeting MR and IR concurrently. PMID- 29321382 TI - [Chinese Journal of Nuclear Medicine and Molecular Imaging Volume 37, Number 12, December 25, 2017]. PMID- 29321381 TI - Association between genetic polymorphism and levothyroxine bioavailability in hypothyroid patients. AB - Thyroid hormones play a vital role in the human body for growth and differentiation, regulation of energy metabolism, and physiological function. Hypothyroidism is a common endocrine disorder, which generally results from diminished normal circulating concentrations of serum thyroxine (fT4) and triiodothyronine (fT3). The primary choice in hypothyroidism treatment is oral administration of levothyroxine (L-T4), a synthetic T4 hormone, as approximately 100-125 MUg/day. Generally, dose adjustment is made by trial and error approach. However, there are several factors which might influence bioavailability of L-T4 treatment. Genetic background could be an important factor in hypothyroid patients as well as age, gender, concurrent medications and patient compliance. The concentration of thyroid hormones in tissue is regulated by both deiodinases enzyme and thyroid hormone transporters. In the present study, it was aimed to evaluate the effects of genetic differences in the proteins and enzymes (DIO1, DIO2, TSHR, THR and UGT) which are efficient in thyroid hormone metabolism and bioavailability of L-T4 in Turkish population. According to our findings, rs225014 and rs225015 variants in DIO2, which catalyses the conversion of thyroxine (pro-hormone) to the active thyroid hormone, were associated with TSH levels. It should be given lower dose to the patients with rs225014 TT and rs225015 GG genotypes in order to provide proper treatment with higher effectivity and lower toxicity. PMID- 29321380 TI - Renin-angiotensin-aldosterone system activation in long-standing type 1 diabetes. AB - BACKGROUND: In type 1 diabetes (T1D), adjuvant treatment with inhibitors of the renin-angiotensin-aldosterone system (RAAS), which dilate the efferent arteriole, is associated with prevention of progressive albuminuria and renal dysfunction. Uncertainty still exists as to why some individuals with long-standing T1D develop diabetic kidney disease (DKD) while others do not (DKD resistors). We hypothesized that those with DKD would be distinguished from DKD resistors by the presence of RAAS activation. METHODS: Renal and systemic hemodynamic function was measured before and after exogenous RAAS stimulation by intravenous infusion of angiotensin II (ANGII) in 75 patients with prolonged T1D durations and in equal numbers of nondiabetic controls. The primary outcome was change in renal vascular resistance (RVR) in response to RAAS stimulation, a measure of endogenous RAAS activation. RESULTS: Those with DKD had less change in RVR following exogenous RAAS stimulation compared with DKD resistors or controls (19%, 29%, 31%, P = 0.008, DKD vs. DKD resistors), reflecting exaggerated endogenous renal RAAS activation. All T1D participants had similar changes in renal efferent arteroilar resistance (9% vs. 13%, P = 0.37) irrespective of DKD status, which reflected less change versus controls (20%, P = 0.03). In contrast, those with DKD exhibited comparatively less change in afferent arteriolar vascular resistance compared with DKD resistors or controls (33%, 48%, 48%, P = 0.031, DKD vs. DKD resistors), indicating higher endogenous RAAS activity. CONCLUSION: In long standing T1D, the intrarenal RAAS is exaggerated in DKD, which unexpectedly predominates at the afferent rather than the efferent arteriole, stimulating vasoconstriction. FUNDING: JDRF operating grant 17-2013-312. PMID- 29321383 TI - Higher Incidence of Sleep Disturbance among Survivors with Musculoskeletal Pain after the Great East Japan Earthquake: A Prospective Study. AB - Sleep disturbance is a common symptom after natural disasters. Although musculoskeletal pain also increases after natural disasters, its relation to sleep disturbance is not clear. The purpose of this study was to determine the influence of musculoskeletal pain on new-onset sleep disturbance among survivors after the Great East Japan Earthquake (GEJE). A prospective cohort study was conducted with the survivors of the GEJE at two and three years after the earthquake. New-onset sleep disturbance was defined as sleep disturbance absent at two years and present at three years after the earthquake. The sites of musculoskeletal pain included low back, shoulder, knee, and hand or foot. The number of musculoskeletal pain sites at two years after the earthquake was divided into three categories (0, 1, and 2 or more). Univariate and multivariate logistic regression models were used to calculate the odds ratio (OR) and 95% confidence interval (95%CI) for new-onset sleep disturbance according to the number of musculoskeletal pain sites. A total of 1,102 survivors were included in this study and 14.6% of the participants reported new-onset sleep disturbance. Using "0" as a reference, the adjusted ORs (95% CI) for new-onset sleep disturbance were 2.43 (1.55-3.80) in "1" and 2.96 (1.88-4.64) in "2 or more", respectively (P for trends < 0.001). In conclusion, this is the first study showing higher incidence of sleep disturbance among survivors with musculoskeletal pain after the GEJE. Care for musculoskeletal pain is important to prevent sleep disturbance after natural disasters. PMID- 29321385 TI - Severe Compression of the Left Main Coronary Artery in a Patient with Chronic Thromboembolic Pulmonary Hypertension. AB - Extrinsic compression of the left main coronary artery (LMCA) can occur in patients with an enlarged pulmonary artery trunk secondary to severe pulmonary hypertension (PH). This phenomenon rarely occurs in PH; moreover, few reports have shown that chronic thromboembolic PH can be a triggering factor for this syndrome. Herein, we describe a patient with extrinsic compression of the LMCA with chronic thromboembolic PH who underwent pulmonary endarterectomy and coronary artery bypass grafting successfully. Intravenous ultrasonography (IVUS) was effective for detecting and assessing the compression. PMID- 29321384 TI - Discovery of a Novel Fluoroquinolone Antibiotic Candidate WFQ-228 with Potent Antimicrobial Activity and the Potential to Overcome Major Drug Resistance. AB - WFQ-101 with a unique N-1 substituent, 5-amino-4-fluoro-2-(hydroxymethyl)phenyl group, was selected as a lead compound through combination screening based on antimicrobial activity and the efflux index against quinolone-resistant (QR) Pseudomonas aeruginosa (P. aeruginosa). Through structural optimization, we identified WFQ-228 as a novel fluoroquinolone antibiotic candidate. WFQ-228 had potent and superior activity in comparison to levofloxacin (LVX) and ciprofloxacin (CIP) against clinical isolates of P. aeruginosa, Escherichia coli and Acinetobacter baumannii, including QR strains. Furthermore, WFQ-228 demonstrated the potential to overcome major mechanisms of drug resistance; its antimicrobial activity was less affected by both pump-mediated efflux and mutations of the quinolone resistance-determining region in P. aeruginosa compared with LVX and CIP. These results suggest that WFQ-228 is a promising candidate for further evaluation in the treatment of infections caused by QR Gram negative pathogens. PMID- 29321386 TI - [The 68th Regional Meeting (Kita Area)]. PMID- 29321387 TI - [The 137th Regional Meeting (Kanto Area)]. PMID- 29321388 TI - Suppression of Abdominal Aortic Aneurysm Formation in Mice by Teneligliptin, a Dipeptidyl Peptidase-4 Inhibitor. AB - AIM: Dipeptidyl peptidase-4 (DPP-4) inhibitors lower blood glucose levels through inhibition of incretin degradation, which stimulates insulin secretion. Recent studies reported that DPP-4 inhibitors suppressed atherogenesis in apolipoprotein E-knockout (ApoEKO) mice. In this study, we investigated whether teneligliptin, a DPP-4 inhibitor, affects the development of abdominal aortic aneurysms (AAA) in ApoEKO mice. METHODS: ApoEKO mice were fed a high-fat diet (HFD) and infused with angiotensin (Ang) II by osmotic mini pumps for 4 weeks to induce AAA with (DPP-4i group) or without (control group) teneligliptin administered orally from 1 week before HFD and Ang II infusion to the end of the experiment. Confluent rat vascular smooth muscle cells (VSMCs) were serum-starved for 48 hours, then incubated with or without teneligliptin for another 24 hours and stimulated with Ang II. RESULTS: Treatment with teneligliptin significantly reduced the AAA formation rate (30.7% vs. 71.4% vs. control, P<0.05), aortic dilatation (1.32+/ 0.09 mm vs. 1.76+/-0.18 mm in the control, P<0.05) and severity score (0.75+/ 0.28 vs. 1.91+/-0.4 in the control, P<0.05). Elastin degradation grade was also attenuated in DPP-4i group (2.83+/-0.17 vs. 3.45+/-0.16 in the control, P<0.05). The number of macrophages infiltrating into the abdominal aorta was decreased in the DPP-4i group (51.8+/- 29.8/section vs. 219.5+/-78.5/section in the control, P<0.05). Teneligliptin attenuated Ang II-induced phosphorylation of extracellular signal-regulated kinase (ERK) and Akt, and mRNA expression of monocyte chemoattractant protein-1 in VSMCs. CONCLUSION: Treatment with teneligliptin suppressed AAA formation in ApoEKO mice with HFD and Ang II infusion. Suppression of macrophage infiltration by teneligliptin may be involved in the inhibition of AAA formation. PMID- 29321389 TI - Aortic Root Calcification Score as an Independent Factor for Predicting Major Adverse Cardiac Events in Familial Hypercholesterolemia. AB - AIM: The aims of this study were: 1) to determine whether the accumulation of aortic root calcification (ARC) assessed using coronary computed tomography angiography (CCTA) can predict future cardiovascular events, and 2) to estimate the onset and progression of ARC in patients with familial hypercholesterolemia (FH). METHODS: One hundred thirteen consecutive Japanese patients with heterozygous FH (male=54, mean age=52.1+/-15.6 years, mean LDL-C=299.0+/-94.6 mg/dL), without known coronary artery disease, who underwent 64-detector row CCTA were retrospectively evaluated. ARC was defined as the presence of calcium at the aortic root. The extent of ARC was expressed in Agatston units as the ARC-score. Major adverse cardiac events (MACE) were defined as either cardiac death, ST elevated myocardial infarction (STEMI), non-ST elevated myocardial infarction (NSTEMI), unstable angina pectoris (UAP), planned percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG), or stroke. The periods to MACE were estimated using multivariate logistic regression analysis. RESULTS: During the follow-up period (median 1635 days), 19 instances of MACE occurred. Multivariate logistic regression analysis revealed that ARC was a significant independent predictor of MACE (OR=1.48; 95% CI 1.11-1.87, p<0.001, respectively). The regression equations were Y=0.09X- 1.59 (R2=0.34, p<0.001) in males and Y=0.08X-1.60 (R2=0.13, p<0. 05) in females. CONCLUSIONS: ARC was significantly associated with future MACE in Japanese patients with heterozygous FH. ARC may start to develop, on average, at 17.4 and 19.7 years of age in males and females, respectively, with heterozygous FH. PMID- 29321390 TI - Unsolved Antiatherogenic Mechanism of n-3 Polyunsaturated Fatty Acids. PMID- 29321391 TI - [Prothymosinalpha, as a neuroprotective DAMPs/Alarmins molecule]. AB - Prothymosin alpha (ProTalpha) has been identified as an anti-necrotic factor from the conditioned medium of primary cultured of rat cortical neurons under the serum-free starving condition. ProTalpha is released in a non-vesicular manner from neurons or astrocytes by the help of cargo protein S100A13. Thus released ProTalpha is found to have robustness roles in the brain under the condition of neuronal necrosis or apoptosis. ProTalpha inhibits necrosis by plasma membrane translocation of glucose transporters endocytosed by ischemia/starving stress, through an activation of unidentified G protein-coupled receptor and protein kinase Cbeta. In the cerebral or retinal ischemia model, systemic injection of ProTalpha protects brain or retina from ischemic damages by converting necrosis to apoptosis, which is in turn blocked by neurotrophic factors. In the retinal ischemia model, ProTalpha prevents the damages by another mechanism through toll like receptor 4 (TLR4) and downstream TRIF signaling. The direct interaction between ProTalpha and TLR4/MD2 is also evidenced by the study of molecular dynamics and protein-protein interaction. All these findings indicate that ProTalpha could be called a cytoprotective member of damage-associated molecular patterns (DAMPs) or alarmins. ProTalpha and its modified peptide fragment, NEVDQE (P6Q) show the vasculoprotective actions by itself in a model of cerebral ischemia as well as neuroprotective actions. The concomitant administration of these peptides abolishes the cerebral hemorrhage induced tissue plasminogen activator (tPA), which is treated late after cerebral ischemia models. Thus, ProTalpha and P6Q seem to have promising therapeutic potencies to directly protect neurons and inhibit the hemorrhage by late treatment with tPA against stroke. PMID- 29321393 TI - [n-3 fatty acids and the maintenance of neuronal functions]. AB - The functions of n-3 fatty acids are known to be diverse, and they play roles in cardiovascular and neuronal systems and in lipid metabolism. Docosahexaenoic acid (DHA), which is the most abundant n-3 fatty acid in the brain, is essential for the maintenance of brain functions throughout the human lifespan. Epidemiological studies have demonstrated that reduced n-3 fatty acid intake is closely associated with the onset of mental and neurological diseases such as brain developmental disorders, depression, and Alzheimer's disease. DHA is primarily involved in neurogenesis, synapse formation, neuronal differentiation, neurite outgrowth, maintenance of membrane fluidity, anti-inflammatory action, and antioxidant action. Its mechanism of action include: 1) the effects on ion channels and membrane bound receptors/enzymes achieved by changing membrane fluidity, as a cell membrane constituent, and 2) free DHA molecules, derived from the cell membrane that directly or metabolically, by conversion to protectin D1 and other molecules, indirectly regulates the gene expression and the activity of intracellular proteins. Although future studies are required, the supplementation of n-3 fatty acids such as DHA may suppress the deterioration of brain functions, delay the onset and progression of various mental/neurological diseases, and further improve the outcome of the neuronal diseases. PMID- 29321392 TI - [The role of brain n-3 fatty acids-GPR40/FFAR1 signaling in pain]. AB - G-protein-coupled receptor 40 (GPR40)/free fatty acid receptor (FFAR) 1 is activated by long-chain fatty acids such as docosahexaenoic acid (DHA). Its receptor is expressed predominantly in the central nervous system (CNS) and in beta-cells in the pancreatic Islets. We have already demonstrated that the intracerebroventricular administration of DHA or GW9508, a GPR40/FFAR1 agonist, suppresses formalin-induced pain behavior. It also attenuates complete Freund's adjuvant-induced mechanical allodynia and thermal hyperalgesia, suggesting that these effects occur by increasing beta-endorphin release from propiomelanocortin neurons. Furthermore, we found that the brain GPR40/FFAR1 signaling may involve in the regulation of the descending pain control system, whereas the deletion of GPR40/FFAR1 might exacerbate mechanical allodynia in postoperative pain. Therefore, it is possible that the brain n-3 fatty acid-GPR40/FFAR1 signaling may play a key role in the modulation of the endogenous pain control system and emotional function. Here, we discuss the role of brain n-3 fatty acids GPR40/FFAR1 signaling in a pain, and we review the current status and future prospects of the brain GPR40/FFAR1. PMID- 29321394 TI - [Chrono-nutrition and n-3 polyunsaturated fatty acid]. AB - Circadian clock system has been widely maintained in many spices from prokaryote to mammals. "Circadian" means "approximately day" in Latin, thus circadian rhythm means about 24 hour rhythms. The earth revolves once every 24 hours, and our circadian system has been developed for adjusting to this 24 hour cycles, to get sun light information for getting their foods or for alive in birds or mammals. We have two different circadian systems so-called main oscillator located in the suprachiasmatic nucleus (SCN) of the hypothalamus, and local oscillator located in the various peripheral organ tissues such as liver, kidney and skeletal muscle. The SCN is directly entrained by light-dark information through retinal hypothalamic tract, and then organizes local clock in peripheral tissues via many pathways including neural and hormonal functions. On the other hand, peripheral local clocks are entrained by feeding, exercise and stress stimuli through several cell signaling. Foods (protein, carbohydrate, and lipid) are important regulator of circadian clocks in peripheral tissues. Thus, controlling the timing of food consumption and food composition, a concept known as chrononutrition, is one area of active research to aid recovery from many physiological dysfunctions. In this review, we focus on molecular mechanisms of entrainment and the relationships between circadian clock systems and n-3 polyunsaturated fatty acid. We concentrate on experimental data obtained from cells or animals and humans and discuss how these findings translate into clinical research, and we highlight the latest developments in chrononutritional studies. PMID- 29321395 TI - [HMGB1 as a representative DAMP and anti-HMGB1 antibody therapy]. AB - High mobility group box-1 (HMGB1), a representative damage-associated molecular patterns (DAMPs), has been reported to be involved in many inflammatory diseases. To validate HMGB1 as a target molecule of inflammatory diseases and to examine the effects of inhibition of HMGB1 on the diseases, we raised anti-HMGB1 monoclonal antibody (mAb) neutralizing extracellular HMGB1 and characterized it. We report the effects of anti-HMGB1 mAb on brain infarction, brain hemorrhage, brain trauma, epilepsy and neuropathic pain using animal models. In these wide range of disease conditions, we found a common event; the injury-induced translocation of HMGB1 from nuclei to extracellular space, especially in neurons. Released HMGB1 disrupt the integrity of blood-brain barrier (BBB) and increased the permeability of BBB, associated with inflammatory responses including the induction of pro-inflammatory cytokines. The intravenous injection of anti-HMGB1 mAb inhibited translocation of HMGB1, BBB disruption, expression of inflammatory molecules and improved neurological symptoms of different kinds of disease models. These results as a whole indicated that HMGB1 may be a very sensitive factor which is mobilized readily by different injurious insults to the brain and that HMGB1 release may be present most upstream of cascade of events triggering BBB disruption and brain inflammation. Thus, HMGB1 may be an excellent target for the treatment of above-mentioned diseases. Anti-HMGB1 mAb provide a novel and potential therapy for these severe disease conditions. PMID- 29321396 TI - [Molecular and cellular mechanisms underlying the sterile inflammation after ischemic stroke]. AB - Inflammation is an essential step for the pathology of ischemic stroke, and is also an important therapeutic target for developing novel therapeutic methods which have a wide therapeutic time window. Since there is no pathogen in the brain, the inflammation will be triggered by some endogenous molecules which are called as danger associated molecular patterns (DAMPs). So far two important DAMPs, high mobility group box 1 (HMGB1) and peroxiredoxin (PRX), have been recently identified in the ischemic brain. HMGB1 exaggerates the disruption of blood brain barrier; on the other hand, PRX activates mononuclear phagocytes and induces the inflammatory cytokine production through the activation of Toll-like receptor 2 (TLR2) and TLR4. Various inflammatory molecules produced from infiltrating immune cells have been known to exacerbate the neurological deficits of ischemic stroke patients. Recently, it has been paid attention that the inflammation after tissue injury also induces tissue repair, while its mechanisms remain to be clarified. Novel therapeutic methods will be established by clarifying detailed molecular mechanisms underlying the induction of neural repair after cerebral post-ischemic inflammation. PMID- 29321398 TI - Where Are the Secrets of Increased Thrombosis and Aneurysm Formation With the Current Bioresorbable Vascular Scaffolds Hidden? PMID- 29321397 TI - Associations between Socioeconomic Status and the Prevalence and Treatment of Hypercholesterolemia in a General Japanese Population: NIPPON DATA2010. AB - AIM: To investigate associations between socioeconomic status (SES) and the prevalence and treatment status of hypercholesterolemia in a general Japanese population. METHODS: In 2010, we established a cohort study of 2417 adults (age 20-91 yr) from 300 randomly selected areas across Japan who participated in the National Health and Nutrition Survey of Japan. We cross-sectionally examined an association between SES and (1) prevalence of hypercholesterolemia in 2417 participants (999 men and 1418 women) and (2) not receiving medication for hypercholesterolemia in 654 participants (215 men and 439 women). SES included employment status, marital status, length of education, and household expenditures. Hypercholesterolemia was defined as a total serum cholesterol level of >=6.21 mmol/L (240 mg/dL) or the use of lipid-lowering medications. RESULTS: The overall prevalence of hypercholesterolemia was 21.5% in men and 31.0% in women. In men, the lowest quintile of household expenditures was associated with a higher prevalence of hypercholesterolemia (28.3%) compared with the upper 4 quintiles (19.9%) (multivariable-adjusted odds ratio 1.66; 95% confidence interval [CI] 1.16-2.38). Among participants with hypercholesterolemia, 55.4% of men and 55.1% of women were not receiving medication. Unmarried men were more likely to be untreated (75.0%) than married men (50.9%) (multivariable-adjusted odds ratio 2.53;95%CI 1.05-6.08). SES had no significant effects in women. CONCLUSION: In a general population of Japanese men, low household expenditures were associated with a higher prevalence of hypercholesterolemia, and unmarried men with hypercholesterolemia were less likely to receive medication. PMID- 29321399 TI - Where Are the Secrets of Increased Thrombosis and Aneurysm Formation With the Current Bioresorbable Vascular Scaffolds Hidden? - Reply. PMID- 29321400 TI - Report of the American Heart Association (AHA) Scientific Session 2017, Anaheim, California. AB - On November 11-15, the American Heart Association (AHA) Scientific Sessions 2017 were held in Anaheim, California, for the first time in 16 years. The annual sessions attracted nearly 18,000 attendees, with a global presence from more than 100 countries, and featured 5 days of programming for cardiovascular basic scientists, clinicians, and researchers. As usual, activities of participants from Japan were prominent. From the exciting sessions, I report the topics and key presentations including the late-breaking clinical trials. PMID- 29321401 TI - Has the Development of Drug-Eluting Stents Ended With Limus-Eluting Stents? PMID- 29321402 TI - Cerebrotendinous Xanthomatosis with Nodular-hypertrophy of the Lumbosacral Roots. PMID- 29321403 TI - A Patient with a Massive Single Cardiac Metastasis of Lung Adenocarcinoma, Diagnosed via a Biopsy. AB - A patient with a history of lung adenocarcinoma was admitted because of palpitation. Transthoracic echocardiogram revealed a mass (74*42 mm) in the right ventricle. Computed tomography showed a tumor lesion in the right ventricular cavity but no other distant metastasis. Coronary angiography revealed well developed small branches to the tumor. After right heart catheterization, a pathological analysis of a tumor biopsy demonstrated adenocarcinoma. We diagnosed the patient with right ventricular metastasis of lung cancer. With large cardiac metastasis, a tumor biopsy with a right heart catheter may help obtain a pathological diagnosis and also serve as a re-biopsy to confirm the gene mutation status. PMID- 29321404 TI - A Clinicopathological Analysis of Six Autopsy Cases of Sudden Unexpected Death due to Infectious Aortitis in Patients with Aortic Tears. AB - Objective Cardiovascular disease is a leading cause of sudden unexpected death even in hospitalized patients. Infectious aortitis is a rare disease that has the potential to cause aortic tears and hemorrhage followed by sudden death. The aim of this study was to reveal the clinicopathological features of infectious aortitis that are related to sudden unexpected death. Methods We retrospectively reviewed 1,310 autopsy cases over 15 years and selected the cases involving patients who died suddenly due to aortic tears. We analyzed the clinical information and pathological findings. Results One hundred thirty-three of 1,310 cases (10.2%) were autopsied under the clinical diagnosis of unexpected sudden death. Aortic tears were identified in 33 cases (2.5%) and infectious aortitis was diagnosed in 6 (18.2%) of these cases. All cases involved male patients (middle-aged to elderly) with risk factors for atherosclerosis (i.e., hypertension). The laboratory data showed continuous leukocytosis and C-reactive protein elevation, even during the improvement phase, in patients with pre existing infectious disease. The autopsy findings revealed three types of aortic tears (aneurysms, dissections and penetrating atherosclerotic ulcers with moderate to severe atherosclerosis), and the infiltration of numerous neutrophils at the site of rupture. Gram-positive bacteria were detected in four cases and Gram-negative bacteria were detected in two cases. Discussion We demonstrated that sudden unexpected death caused by infectious aortitis rarely occurred in hospitalized patients, even in the recovery phase of the preceding infectious disease. We therefore recommend that clinicians pay attention to infectious aortitis in patients with infectious disease, particularly elderly patients with atherosclerotic disease, even those who are in the improvement phase. Conclusion Unexpected sudden death by infectious aortitis in the recovery phase of antecedent infection. PMID- 29321405 TI - Reversible Parkinsonism and Multiple Cerebral Infarctions after Pulmonary Endarterectomy in a Patient with Antiphospholipid Syndrome. AB - Antiphospholipid syndrome (APS) is a cause of chronic thromboembolic pulmonary hypertension (CTEPH) and it is associated with an increased risk of postoperative neurological complications. We experienced a case of reversible parkinsonism after pulmonary endarterectomy (PEA) and subsequent multiple cerebral infarctions under standard anticoagulation therapy in a patient with CTEPH associated with APS. Strict management using a combination of antiplatelet and anticoagulation therapy should be considered in patients with a high titer of triple antiphospholipid antibodies in the perioperative period. We should be aware of the high risk of postoperative neurologic manifestations in patients with APS. PMID- 29321406 TI - An Acute Case of Granulomatous Amoebic Encephalitis-Balamuthia mandrillaris Infection. AB - A 74-year-old woman who exhibited drowsiness was referred to our hospital. Enhanced head magnetic resonance imaging (MRI) revealed multiple ring-enhancing lesions and lesions showing partial mild hemorrhaging. The patient gradually progressed to a comatose condition with notable brain deterioration of unknown cause on follow-up MRI. On day nine, the patient inexplicably died, although brain herniation was suspected. Autopsy and histopathology revealed numerous amoebic trophozoites in the perivascular spaces and within the necrotic tissue. Brain immunostaining tested positive for Balamuthia mandrillaris. Infection due to free-living amoeba is rare in Japan; however, it may increase in the near future due to unknown reasons. PMID- 29321407 TI - Vertebral Osteomyelitis Caused by Helicobacter cinaedi Identified Using Broad range Polymerase Chain Reaction with Sequencing of the Biopsied Specimen. AB - A 65-year-old man presented with gradually exacerbating low back pain. Magnetic resonance imaging revealed vertebral osteomyelitis in the Th11-L2 vertebral bodies and discs. The patient showed negative findings on conventional cultures. Direct broad-range polymerase chain reaction (PCR) with sequencing of the biopsied specimen had the highest similarity to the 16S rRNA gene of Helicobacter cinaedi. This case suggests that direct broad-range PCR with sequencing should be considered when conventional cultures cannot identify the causative organism of vertebral osteomyelitis, and that this method may be particularly useful when the pathogen is a fastidious organism, such as H. cinaedi. PMID- 29321408 TI - The Factors Affecting the Non-dipper Pattern in Japanese Patients with Severe Obstructive Sleep Apnea. AB - Objective Obstructive sleep apnea (OSA) is assumed to influence the circadian blood pressure (BP) fluctuation, particularly causing nocturnal hypertension and changing the dipping pattern of nocturnal BP. This study aimed to clarify the triggers of the non-dipper pattern in nocturnal BP in Japanese patients with severe OSA (the apnea-hypopnea index >=30/h). Methods Of 541 patients with OSA diagnosed using polysomnography (PSG) and ambulatory BP monitoring (ABPM), 163 patients <60 years of age (Younger group) and 101 patients >=60 years of age (Older group) were stratified into the dipper or non-dipper pattern groups. Results A logistic regression analysis was performed using a non-dipper pattern as a dependent variable. A multivariate analysis demonstrated that the cumulative percentage of time at saturation below 90% was the only independent risk factor for the non-dipper and riser patterns in the Younger group (odds ratio, 1.022; 95% confidence interval, 1.001-1.044; p=0.035), whereas slow-wave sleep (odds ratio, 0.941; 95% confidence interval, 0.891-0.990; p=0.019) and the use of angiotensin-converting enzyme inhibitors or angiotensin II receptor blockers (odds ratio, 2.589; 95% confidence interval, 1.051-6.848; p=0.039) were risk factors in the Older group. Conclusion These findings suggested that the degree of desaturation in young OSA patients and sleep quality in old OSA patients might influence the dipping patterns in nocturnal BP. PMID- 29321409 TI - Pulmonary Embolism Caused by Intravenous Leiomyosarcoma of the Lower Limb. AB - Pulmonary embolism (PE) is usually caused by thrombosis or tumor. We report the long-term survival of a patient with PE due to a leiomyosarcoma in the deep vein. A 71-year-old woman complained of dyspnea and swelling of the left lower limb. Computed tomography revealed filling defects in the pulmonary arteries and deep vein. She was diagnosed with PE caused by venous thrombosis and treated with anticoagulant therapy. Her symptoms were prolonged, and D-dimer tests remained negative. Biopsy of the substance in the deep vein revealed leiomyosarcoma. The possibility of PE caused by extravascular or intravascular tumors should be considered when a patient is negative for D-dimer. PMID- 29321410 TI - Successful Management of Pregnancy in a Patient with Systemic Lupus Erythematosus associated Pulmonary Arterial Hypertension. AB - Pregnancy in women with systemic lupus erythematosus (SLE)-associated pulmonary arterial hypertension (PAH) remains a high risk. We successfully managed a pregnancy in a patient with SLE-PAH. A 31-year-old pregnant woman with SLE-PAH had worsening PAH and SLE flare-up during pregnancy and a sudden increase in pulmonary arterial pressure after delivery. SLE-PAH was controlled by continuous intravenous epoprostenol and inhaled nitric oxide therapy combined with high-dose corticosteroids under close hemodynamic monitoring. Women with SLE-PAH should avoid pregnancy. However, in case of a similar event, we recommend our case as a good reference for improving the outcome of pregnancy with SLE-PAH. PMID- 29321411 TI - Cough Headache Presenting with Reversible Cerebral Vasoconstriction Syndrome. AB - Cough headache can be a primary benign condition or secondary to underlying etiologies. We herein describe a case of a 52-year-old woman with cough headache that presented as reversible cerebral vasoconstriction syndrome (RCVS). Some cases of RCVS are caused by an aberrant sympathetic response to activities that cause an intracranial pressure surge. Therefore, cough headache should be recognized as a possible presentation of RCVS, even without thunderclap headache or neurological deficits. PMID- 29321412 TI - The Successful Treatment of Sodium Polystyrene Sulfonate-induced Enteritis Diagnosed by Small Bowel Endoscopy. AB - Sodium polystyrene sulfonate (SPS: Kayexalate(r)) is an ion-exchange resin used to treat hyperkalemia in patients with chronic kidney disease. It is known that this resin sometimes causes colonic necrosis and perforation, but there are few reports about small bowel necrosis associated with SPS. We herein report the case of a patient who developed SPS-induced small bowel necrosis, which was diagnosed based on the examination of a small bowel endoscopic biopsy specimen. The SPS induced small bowel necrosis was resistant to conservative treatment including the cessation of SPS, and finally required surgical bowel resection. PMID- 29321413 TI - Remission of Refractory Ascites and Discontinuation of Hemodialysis after Additional Rituximab to Long-term Glucocorticoid Therapy in a Patient with TAFRO Syndrome. AB - Thrombocytopenia, ascites, myelofibrosis, renal dysfunction, and organomegaly (TAFRO) syndrome is a newly recognized but rare disease, and its treatment has not yet been established. We reported a 50-year-old woman with TAFRO syndrome diagnosed 2 years after the initial symptoms of a fever, fatigue, epigastric pain, edema, ascites, lymphadenopathy, thrombocytopenia and renal insufficiency. The patient showed refractory ascites and required hemodialysis under corticosteroid mono-therapy for suspected immune-mediated disease but was successfully treated with additive rituximab, resulting in improvement in her laboratory data, the withdrawal of hemodialysis and the disappearance of ascites. This case underscores the therapeutic utility of rituximab in patients with corticosteroid-resistant TAFRO syndrome, even long after the onset of the disease. PMID- 29321416 TI - Simultaneous Nontraumatic Spinal and Intracranial Subdural Hematoma. PMID- 29321415 TI - Cerebral Toxoplasmosis Diagnosed by Nested-polymerase Chain Reaction in a Patient with Rheumatoid Arthritis. AB - A 65-year-old woman with rheumatoid arthritis (RA) visited our hospital because of right facial sensory hypoesthesia. Cerebral toxoplasmosis was suspected on brain magnetic resonance imaging. We discontinued methotrexate for RA and started a sulfamethoxazole/trimethoprim (ST) mixture. Although ST treatment was interrupted because of adverse reactions, her prognosis was favorable. The Toxoplasma 18S rDNA gene was detected by nested-polymerase chain reaction (PCR) from blood and cerebrospinal fluid. Detecting the Toxoplasma 18S rDNA gene by nested-PCR is useful for the diagnosis and safer than a brain biopsy. In addition, the discontinuation of immunosuppressants may be recommended in patients compromised by those immunosuppressants. PMID- 29321414 TI - The Platelet Count Can Predict In-hospital Death in HIV-negative Smear-positive Pulmonary Tuberculosis Inpatients. AB - Objective This retrospective cohort study investigated whether the three components of the blood cell count have prognostic implications in HIV-negative Japanese adult inpatients with smear-positive pulmonary tuberculosis. Methods We reviewed patients who were treated by the isoniazid, rifampicin, pyrazinamide, and ethambutol regimen or by the isoniazid, rifampicin, and ethambutol regimen. The association between the patient data on admission and the survival outcome was evaluated. Results We reviewed 367 consecutive patients (male, 60.5%) with a median age of 72 [interquartile range (IQR), 54-82] years. While the white blood cell count did not differ between the two groups, (discharged alive: 7,000/MUL; IQR, 5,500-9,300; died in hospital: 7,200/MUL; IQR, 5,600-9,400; p=0.797), hemoglobin level (discharged alive: 11.5 g/dL; IQR, 10.0-13.1; died in hospital: 9.9 g/dL; IQR, 8.6-11.3; p<0.001) and the platelet count (discharged alive: 275,000/MUL; IQR, 206,000-345,000; died in hospital: 149,000/MUL; IQR, 93,000 236,000; p<0.001) were lower in patients who died in hospital. After dividing patients into hemoglobin- and platelet-based quantiles, the lower quantile class tended to show poorer survival (log-rank test for trend p<0.001 for both). A multi-variable Cox proportional hazards model revealed that hazard ratio for in hospital death for every 1,000/MUL increase of platelet count was 0.997 (95%CI, 0.995-0.999; p=0.010); the hazard ratio for the hemoglobin level was not significant. Conclusion A low platelet count was clearly related to a poor life prognosis in HIV-negative Japanese adult inpatients with smear-positive pulmonary tuberculosis. PMID- 29321418 TI - Optimal Medications and Appropriate Implantable Cardioverter-defibrillator Shocks in Aborted Sudden Cardiac Death Due to Coronary Spasm. AB - Objective Life-threatening ventricular arrhythmias are recognized in patients with coronary spastic angina. Implantable cardioverter-defibrillators (ICDs) are effective in patients with structural heart disease and ventricular fibrillation. However, the optimal medication for patients with aborted sudden cardiac death (SCD) due to coronary artery spasm after the implantation of ICD remains controversial. Methods We investigated the medications and the numbers of appropriate ICD shocks in 137 patients with a history of aborted SCD due to coronary spasm. Results Appropriate ICD shocks were observed in 24.1% (33/137) of patients with aborted SCD due to coronary spasm during 41 months of follow-up. Only 15 (15.6%) of the 96 patients with ICDs received aggressive medical therapy, including two or three calcium-channel antagonists. The rate of appropriate ICD shocks was significantly higher in Western countries than in Asian countries (42.9% vs. 19.3%, p<0.01), whereas the medications did not differ between the two regions. Appropriate ICD shocks successfully resuscitated 33 patients. Three patients died due to second serious fatal arrhythmias. Conclusion Appropriate ICD shocks were recognized in a quarter of patients with aborted SCD due to coronary spasm and ICD implantation was effective for suppressing the next serious fatal arrhythmia in these patients. We should reconsider prescribing more medications after ICD implantation in patients with aborted SCD due to coronary artery spasm. PMID- 29321417 TI - Peripheral Ulcerative Keratitis Associated with Granulomatosis with Polyangiitis Emerging Despite Cyclophosphamide, Successfully Treated with Rituximab. AB - A 67-year-old Japanese man was diagnosed with granulomatosis with polyangiitis based on the presence of right maxillary sinusitis, proteinase 3 antineutrophil cytoplasmic antibody positivity, and right scleritis. A conjunctival biopsy specimen showed neutrophil-predominant infiltration around the vessels without granuloma. Because there was a risk of blindness, pulsed methylprednisolone and intravenous cyclophosphamide pulse therapy (IVCY) were started. However, it was ineffective, and peripheral ulcerative keratitis newly emerged. We promptly switched the treatment from IVCY to rituximab, and ophthalmologists performed amniotic membrane transplantation, which avoided blindness. The close and effective working relationship between physicians and ophthalmologists improved our patient's ocular prognosis. PMID- 29321419 TI - Useful Predictive Factors for Bacteremia among Outpatients with Pyelonephritis. AB - Objective The aim of this study was to identify predictive factors for bacteremia conveniently and quickly among outpatients diagnosed with pyelonephritis. Patients All patients who were diagnosed with pyelonephritis at the outpatient clinic in the Department of General Medicine of Juntendo University Hospital from April 1, 2008, to June 30, 2015, were enrolled. Patients from whom blood cultures had not been taken were excluded. Methods Clinical information was extracted from medical charts. Factors potentially predictive of bacteremia were analyzed using a t-test and Fisher's exact test, followed by a multivariable logistic regression model analysis. Results Blood cultures were drawn from 116 patients, and 25 (22%) presented with bacteremia. A multivariate analysis with the age, chills, platelet count and urine nitrite test results revealed that older age, positive urinary nitrite test results and chills tended to be associated with bacteremia, respectively. [older age: unit odds ratio (OR) 1.02, p=0.052, 95% confidence interval (CI) 1.00-1.05, positive urinary nitrite test findings: OR 2.5, p=0.092, 95% CI 0.86-7.7, chills: OR 2.5, p=0.096, 95% CI 0.84-7.65]. The area under the receiver operating characteristic (ROC) curve of this model was 0.77. Regardless of age, positive urinary nitrite test findings were significantly associated with bacteremia (OR 3.1, p=0.033, 95% CI 1.1-9.2), and chills tended to be associated with bacteremia (OR 2.7, p=0.07, 95% CI 0.93-7.9) The area under the ROC curve of this model was 0.75. Conclusion Bacteremia should be considered in pyelonephritis patients with rapidly assessable factors in outpatient clinic. In particular, a model including a urinary nitrite test has the potential to aid in the prediction of bacteremia. PMID- 29321420 TI - Validity of the Pre-endoscopic Scoring Systems for the Prediction of the Failure of Endoscopic Hemostasis in Bleeding Gastroduodenal Peptic Ulcers. AB - Objective Although several pre-endoscopic scoring systems have been used to predict the mortality or the need for intervention for upper gastrointestinal bleeding, their usefulness to predict the failure of endoscopic hemostasis in bleeding gastroduodenal peptic ulcers has not yet been fully investigated. In this study, we evaluated the usefulness of the Glasgow-Blatchford score (GBS), the clinical Rockall score (CRS), and the AIMS65 score in predicting the failure of endoscopic hemostasis in patients with bleeding gastroduodenal peptic ulcers. Methods We retrospectively evaluated 226 consecutive emergency endoscopic cases with bleeding gastroduodenal peptic ulcers between April 2010 and September 2016. The study outcome was the failure of first endoscopic hemostasis. The GBS, CRS, and AIMS65 scores were assessed for their ability to predict the failure of endoscopic hemostasis using a receiver-operating characteristic curve. Results Eight cases (3.5%) failed to achieve first endoscopic hemostasis. Surgery was required in six cases, and interventional radiology was required in two cases. The GBS was superior to both the CRS and the AIMS65 score in predicting the failure of endoscopic hemostasis [area under the curve, 0.77 (95% confidence interval, 0.64-0.90), 0.65 (0.56-0.74) and 0.75 (0.56-0.95), respectively]. No failure of endoscopic hemostasis was noted in cases in which the patient scored less than GBS 10 and CRS 2. Conclusion The GBS was the most useful scoring system for the prediction of failure of endoscopic hemostasis in patients with bleeding gastroduodenal peptic ulcers. The GBS was also useful in identifying the patients who did not require surgery or interventional radiology. PMID- 29321421 TI - A Fatal Case of Super-super Obesity (BMI >80) in a Patient with a Necrotic Soft Tissue Infection. AB - A 35-year-old man (height, 169 cm; body weight, 240 kg; BMI, 84) visited the Department of Dermatology due to left leg pain and swelling. Focused enhanced computed tomography (CT) of the left leg ruled out complications of deep venous thrombosis. Surgical exploration of the left leg resulted in a diagnosis of necrotic soft tissue infection, but amputation was ruled out due to his weight. The patient ultimately died of multiple organ failure on the fourth day of hospitalization. A culture of the surgical material revealed Streptococcus dysgalactiae. The present case suggests that super-obese patients should be aggressively treated before lethal complications occur. PMID- 29321422 TI - Progressive Restrictive Ventilatory Impairment in Idiopathic Diffuse Pulmonary Ossification. AB - Diffuse pulmonary ossification (DPO) is a rare disease characterized by metaplastic bone formation in the lung. There are few reports with a long-term follow-up of this disease. We herein report a 47-year-old man diagnosed with idiopathic DPO at 30 years of age. The patient's vital capacity was normal until 36 years of age (3.39 L, 82.4% predicted), but it was severely decreased when he visited the hospital again at 47 years of age due to cough and dyspnea (1.98 L, 44.6% predicted). Chest computed tomography showed a significant increase in the number of high-density nodules, suggesting that the progression of DPO had caused restrictive ventilatory impairment. PMID- 29321423 TI - Constrictive Pericarditis as a Long-term Undetermined Etiology of Ascites and Edema. AB - Constrictive pericarditis (CP) is defined as impedance to diastolic filling caused by a fibrotic pericardium. The diagnosis of CP is a clinical challenge and requires a high index of clinical suspicion. The signs and symptoms of CP include fatigue, edema, ascites, and liver dysfunction. These can be mistakenly diagnosed as primary liver disease. We present the case of a 69-year-old woman with a 7 year history of leg edema and a 2-year history of ascites who was initially diagnosed with cryptogenic liver cirrhosis and was finally diagnosed with CP. PMID- 29321425 TI - Elevation of Plasmin-alpha2-plasmin Inhibitor Complexes in Patients with AL Amyloidosis. PMID- 29321424 TI - Anti-MuSK Antibody-positive Myasthenia Gravis Successfully Treated with Outpatient Periodic Weekly Blood Purification Therapy. AB - A 37-year-old man with anti-muscle-specific tyrosine kinase (MuSK) antibody positive myasthenia gravis (MG) presented with subacute progressive dysphagia and muscle weakness of the neck and bilateral upper extremities. Conventional immune suppressive treatments and high-dose intravenous immunoglobulin were ineffective. He then displayed repeated exacerbations and remissions over the course of two years, despite two to four sessions of plasma exchange (PE) every two months. The patient was successfully treated with outpatient periodic weekly blood purification therapy with alternative PE and double-filtration plasmapheresis using an internal shunt. This case report suggests the benefits of blood purification therapy with an internal shunt against anti-MuSK antibody-positive MG. PMID- 29321426 TI - Percutaneous Coronary Intervention for a Patient with Left Main Coronary Compression Syndrome. AB - Left main coronary compression syndrome rarely occurs in patients with severe pulmonary hypertension. A 65-year-old woman with severe pulmonary hypertension due to an atrial septal defect suffered from angina on effort. Cardiac computed tomography and coronary angiography revealed considerable stenosis of the left main coronary artery (LMA) caused by compression between the dilated main pulmonary artery trunk and the sinus of valsalva. Stenting of the LMA under intravascular ultrasound imaging was effective for the treatment of angina. We herein report the diagnosis and management of this condition with a brief literature review. PMID- 29321427 TI - Cardiac Sarcoidosis Concomitant with Large-vessel Aortitis Detected by 18F fluorodeoxyglucose Positron Emission Tomography. AB - We herein report a case of concurrent cardiac sarcoidosis and large-vessel aortitis detected by 18F-fluorodeoxyglucose positron emission tomography (FDG PET) and followed up during immunosuppressive therapy. After high-dose prednisolone administration (1 mg/kg), serial FDG-PET showed that almost all of the abnormal FDG uptake in the heart and extracardiac region, including the abdominal to bilateral iliac arteries, had been disappeared. During the tapering of prednisolone, additive methotrexate therapy was needed to treat the recurrence of cardiac sarcoidosis. FDG-PET is a useful tool for detecting cardiac sarcoidosis concomitant with large-vessel aortitis and monitoring the effectiveness of immunosuppressive therapy. PMID- 29321428 TI - Synchronous Occurrence of Mycosis Fungoides, Diffuse Large B Cell Lymphoma and Acute Myeloid Leukemia. AB - Patients with mycosis fungoides (MF), the most common subtype of primary cutaneous T-cell lymphoma, have an increased risk of developing secondary malignancies. We herein report two rare cases of MF concurring with diffuse large B cell lymphoma (B lymphoid lineage) and acute myeloid leukemia (myeloid lineage) in two otherwise healthy elderly patients. Potential etiologic factors, including the impact of the therapy-associated inflammatory response on the development of secondary tumors in patients with MF, are discussed. Further clinical, experimental and genetic studies are needed to elucidate possible physiopathogenic associations among the three concurrent malignancies occurring in the cases presented here. PMID- 29321429 TI - Early Combination Therapy with Corticosteroid and Nucleoside Analogue Induces Rapid Resolution of Inflammation in Acute Liver Failure due to Transient Hepatitis B Virus Infection. AB - Objective Patients with acute hepatitis B sometimes develop acute liver failure (ALF), which has a poor prognosis. The efficacy of nucleoside analogue (NA) monotherapy for ALF due to transient hepatitis B virus infection (HBV-ALF) remains controversial. Further investigations are necessary in nations with a shortage of donor livers for liver transplantation. In the present study, we aimed to clarify the efficacy of combination therapy with corticosteroid (CS) and NA in the treatment HBV-ALF. Patients We examined the clinical and biochemical features of 19 patients with HBV-ALF who were treated in the early stage of the disease between 2000 and 2015. Results Fourteen patients received CS and NA (CS + NA group) and 5 received NA monotherapy (NA group). Eleven patients (58%) survived and 8 (42%) died. The survival rates in the CS + NA and NA groups were 64% and 40%, respectively (p=0.60). The mean alanine aminotransferase (ALT) levels declined significantly at week 2 in both groups. The mean PT activities improved significantly at weeks 1 and 2 in the CS + NA group (p<0.05) but not in the NA group. None of the surviving patients developed persistent infection. Conclusion Combination therapy with CS and NA induces the rapid resolution of inflammation leading to a rapid recovery of the liver function. When it is administered at a sufficiently early stage, it would have a survival benefit and prevent persistent infection in HBV-ALF. PMID- 29321430 TI - New-onset Takayasu's Arteritis as Acute Myocardial Infarction. AB - We herein report the case of a 25-year-old Japanese woman with left-main-trunk acute myocardial infarction (LMT-AMI). She had cardiogenic shock, so emergency percutaneous intervention was performed. Intravascular ultrasound of LMT-AMI showed that the three-layered structure of the intima, tunica media, and adventitia was not clearly visible, and the vessel was concentrically thickened; unstable plaque and calcification were not seen. AMI is rarely seen in young women, but Takayasu's arteritis is one major cause. If a young woman complaining of typical chest pain as acute coronary syndrome is encountered, systemic diseases must be considered. PMID- 29321431 TI - Self-reported Slower Eating Is Associated with a Lower Salt Intake: A Population based Cross-sectional Study. AB - Objective Evidence suggests that the eating rate is positively associated with the body weight and blood pressure. Furthermore, people who are overweight or obese tend to have higher salt intakes than those of normal weight. To investigate whether or not the eating rate is also associated with the salt intake, a cross-sectional study was conducted using health examination survey data collected in 2014 from 7,941 residents of Sado City, Niigata, Japan. Methods The eating rates were evaluated using a questionnaire; 11.7% of participants rated themselves as slow eaters, 65.6% as normal eaters, and 22.7% as fast eaters. The salt intake was estimated from sodium and creatinine spot urine measurements using Tanaka's formula. Associations with eating rate were evaluated using multivariate linear regression analyses, with normal eaters as the reference (set at 0). Results Self-reported eating rates were positively associated with the salt intake after adjustment for age and sex [beta coefficient (95% confidence interval) for slow -0.51 (-0.67, -0.35); fast 0.18 (0.05, 0.30) ]. Further adjustment for the body mass index showed that slower eaters had lower salt intakes than normal eaters, but there was no marked difference in the salt intake between normal and fast eaters. The association between slower eating and a lower salt intake persisted after further adjustment for comorbidities [slow -0.33 (-0.49, -0.18) ]. Conclusion Our results suggest that reducing eating rates may be an effective strategy for reducing dietary salt intake as well as preventing obesity. PMID- 29321432 TI - Acute-onset Autoimmune Hepatitis in a Young Woman with Type 1 Diabetes Mellitus. AB - Autoimmune hepatitis (AIH) and type 1 diabetes mellitus (T1DM) are thought to be induced by autoimmunity, but their coexistence has rarely been reported. We herein report a case in which a patient with T1DM developed acute-onset AIH. A 26 year-old woman, who had been diagnosed with T1DM in childhood, was transferred to our hospital because of acute liver failure of unknown etiology. The administration of corticosteroids including steroid pulse therapy was effective. Based on the histological finding of massive centrilobular necrosis and a good response to steroid therapy, we diagnosed the patient with acute-onset AIH. This case indicates that AIH can occur in young T1DM patients. PMID- 29321435 TI - Chronic Expanding Hematoma on the Chest Wall after Mastectomy. PMID- 29321433 TI - CV2/CRMP5-antibody-related Paraneoplastic Optic Neuropathy Associated with Small cell Lung Cancer. AB - A 61-year-old woman who had smoked for 41 years developed subacute dizziness, ataxic gait, opsoclonus, and right visual impairment. She had right optic disc swelling and optic nerve gadolinium enhancement on magnetic resonance imaging. She had small-cell lung cancer (SCLC), with CV2/collapsin response mediator protein (CRMP) 5 and HuD antibodies in her serum and cerebrospinal fluid. She was diagnosed with paraneoplastic optic neuropathy (PON) accompanied by paraneoplastic opsoclonus-ataxia syndrome. Her symptoms improved after removing the SCLC. Classical PON is rare in Japan. We recommend assaying for CV2/CRMP5 antibodies and searching for cancer in elderly patients with subacute painless visual impairment. PMID- 29321434 TI - Tricuspid and Mitral Valve Regurgitation with Bi-fascicular Block Following a Horse Kick. AB - A 40-year-old man was transferred to our hospital following an isolated horse kick injury to the anterior chest wall. The case showed bi-fascicular block, severe tricuspid valve regurgitation due to ruptured chordae tendineae of the anterior leaflet, moderate mitral valve regurgitation due to prolapse of mitral anterior leaflet, and hypokinetic motion of the inferior septal wall. Both tricuspid and mitral insufficiency were completely repaired by a surgical operation. Fortunately, these injuries were not fatal in this case, but the comprehensive assessment of cardiac damage and careful observation are important for managing patients with cardiac injury. PMID- 29321436 TI - Necrotizing Sarcoid Granulomatosis with Natural Resolution after a Surgical Lung Biopsy. AB - Necrotizing sarcoid granulomatosis (NSG) is a rare disease that is diagnosed based on pathological findings. We herein report the case of a 27-year-old man who had multiple nodular shadows in bilateral lung fields on chest radiography and elevated levels of C-reactive protein (CRP). The pathological evaluation of a lung biopsy specimen showed the infiltration of lymphocytes, granulomas with necrosis and granulomatous angiitis. He was therefore diagnosed with NSG. He has been followed without treatment, as his fever and CRP levels decreased immediately after the surgical lung biopsy. Thereafter, the pulmonary nodular shadows gradually recovered without any treatment within a few months. Our experience suggests the possibility that surgical invasion might trigger an improvement in disease activity. PMID- 29321437 TI - Esophageal Granular Cell Tumors Can Be Differentiated from Leiomyomas Using Endoscopic Ultrasonography. AB - Objective Although esophageal granular cell tumors have been reported to present as hypoechoic tumors, we noticed that their echogenicity is similar to that of the submucosal layer. We investigated the sonographic features of esophageal granular cell tumors and the diagnostic accuracy of the features. Methods Seven patients with esophageal granular cell tumors who underwent endoscopic ultrasonography were retrospectively reviewed. Thirteen patients with esophageal leiomyoma were selected as historical control subjects. The brightness of the tumor on ultrasonography images was measured and the echogenicity was standardized according to the echogenicity of the proper muscle and submucosal layers. Ten board-certified endoscopists then independently evaluated the endoscopic pictures of the 20 patients (Test 1), as well as the endoscopic ultrasonography images together with endoscopic pictures of the same patient set (Test 2). Results The standardized echogenicity in granular cell tumors was significantly higher than that in leiomyomas. The diagnostic accuracy of the 10 evaluators using endoscopic pictures alone (Test 1) was 72.0%. The addition of endoscopic ultrasonography images (Test 2) significantly improved the accuracy to 93.0%. Conclusion The echogenicity of granular cell tumors was similar to that of the submucosal layer, and it was significantly higher than that of leiomyomas. Endoscopic ultrasonography images facilitate the accurate identification of esophageal granular cell tumors. PMID- 29321438 TI - Vogt-Koyanagi-Harada Disease Associated with Influenza A Virus Infection. AB - We herein report a case of a 31-year-old Japanese man who simultaneously had a positive influenza A virus antigen test result and Vogt-Koyanagi-Harada disease (VKHD), demonstrated by both diffuse multiple early hyperfluorescent points on fluorescein fundus photography and serous retinal detachments on optical coherence tomography. He had meningitis. It was difficult to determine whether the main cause of meningitis was influenza A or VKHD. After initial treatment with peramivir for influenza A and then methylprednisolone pulse with subsequent corticosteroid therapy for VKHD, his symptoms improved gradually. These findings suggest that influenza A virus infection contributes to the onset or exacerbation of VKHD. PMID- 29321439 TI - The Association of Bite Instability and Comorbidities in Elderly People. AB - Objective The purpose was to evaluate the association between bite instability and comorbidities, comprehensive geriatric evaluations, or disabilities in elderly people. Methods A dentist examined the oral function, such as the bite stability, number of teeth, and the use of dentures, in 119 patients (93 women, mean age: 86.7+/-7.8) in 2 nursing homes for the elderly. The association between the oral function and the prevalence of diseases, including hypertension, diabetes mellitus, and dementia, was analyzed. Results The median number of teeth was 0 [0, 4]. The patients were divided into a bite-stable group (n=78, 66%) and bite-unstable group (n=41, 34%). The prevalence of hypertension was significantly higher in the bite-stable group than in the bite-unstable group (83% vs. 63%, respectively; p=0.0149), whereas the prevalence of diabetes mellitus was significantly lower in the bite-stable group than in the bite-unstable group (10% vs. 27%, respectively; p=0.0190). The prevalence of a cognitive function decline was significantly lower in the bite-stable group as well (59% vs. 83%, p=0.0082). According to the simplified comprehensive geriatric assessment 7, the bite-stable group scored significantly higher for instrumental activities of daily living (ADL) than the bite-unstable group (54% vs. 24%, respectively; p=0.0021). A multivariate logistic regression analysis demonstrated that bite instability was independently correlated with hypertension, diabetes mellitus, and instrumental activities of daily living. Conclusion Bite instability was independently associated with a decreased prevalence of hypertension or increased prevalence of diabetes mellitus and low levels of instrumental ADL in the elderly. PMID- 29321440 TI - An Overview of Kidney Disease Following Hematopoietic Cell Transplantation. AB - Hematopoietic stem cell transplantation (SCT) recipients are exposed to a large amount of anti-cancer drugs, immunosuppressors, and irradiation during the peri SCT period. Thus, they have to overcome serious adverse events related to unavoidable but toxic procedures, including organ disorders. In particular, acute kidney injury (AKI) is one of the most critical complications, because it influences the mortality of patients. A few patients who survive AKI may develop nephrotic syndrome, and precedent AKI is also closely associated with chronic and progressive loss of the renal function in post-SCT patients. These kidney diseases place a heavy burden on SCT patients, both medically and economically. Therefore, hematologists who evaluate SCT should be fully aware of the development of these kidney diseases after SCT. We herein review the common course of kidney disease development following allogeneic SCT to provide healthcare professionals with practical information on renal disease in SCT patients. PMID- 29321442 TI - Acquired von Willebrand Syndrome due to Aortic Valve Stenosis in a Case with Antiphospholipid Antibody. AB - Acquired von Willebrand syndrome (AVWS) is a bleeding disorder caused by an acquired deficiency of von Willebrand factor (vWF). Some patients with AVWS show a low bleeding tendency and are diagnosed by the presence of a mild prolongation of activated partial thromboplastin time (APTT) preoperatively. Another cause of APTT prolongation is the presence of antiphospholipid antibody (aPL). We experienced a case of AVWS due to aortic valve stenosis in a patient with aPL in whom aortic valve replacement surgery was successful with vWF replacement. In patients with AVWS-associated disorders who are identified based on APTT prolongation at the preoperative examination, both vWF and aPL screening tests must be performed. PMID- 29321441 TI - Diabetes Mellitus Prevents an Improvement in the Serum Albumin Level During Interferon-free Sofosbuvir-based Therapy for Chronic Hepatitis C Patients: A Multi-institutional Joint Study. AB - Objective Interferon-free regimens of direct-acting antiviral agents have improved the treatment response for chronic hepatitis C virus (HCV) infection, and improvement in the serum albumin level during interferon-free therapy has been reported. The aim of this study was to identify the factors that influence the improvement in the serum albumin level in patients receiving interferon-free antiviral therapy. Methods This retrospective, multicenter study consisted of 471 Japanese patients with chronic hepatitis and compensated liver cirrhosis infected with HCV who completed 12-week interferon-free sofosbuvir (SOF)-based therapy [SOF plus ledipasvir for genotype 1 (n=276) and SOF with ribavirin for genotype 2 (n=195)]. We evaluated the changes in the serum albumin level from baseline to the end of treatment (DeltaAlb). Results When compared with the normal-albumin group (baseline serum albumin >35 g/L, n=406), the low-albumin group (baseline serum albumin <=35 g/L, n=65) showed a significant increase in the mean DeltaAlb (5.5 g/L vs. 1.0 g/L, p<0.001). In the low-albumin group, a multivariate logistic regression analysis extracted diabetes mellitus as a negative predictive factor of median DeltaAlb >5.0 g/L (odds ratio: 0.19, 95% confidence interval: 0.048 0.79, p=0.020). In the low-albumin group, the mean DeltaAlb was significantly lower in the diabetic patients (n=14) than in the non-diabetic patients (n=51) (3.9 g/L and 5.7 g/L, p=0.049). Conclusion Interferon-free SOF-based therapy significantly improved the serum albumin in the low-albumin group patients with chronic HCV infection. However, the improvement in the serum albumin level was significantly lower in the diabetic patients than in the non-diabetic patients. PMID- 29321444 TI - Agricultural aspects of radiocontamination induced by the Fukushima nuclear accident - A survey of studies by the Univ. of Tokyo Agricultural Dept. (2011 2016). AB - Immediately after the Fukushima nuclear power plant accident, a team of 40-50 researchers at the Graduate School of Agricultural and Life Sciences at the University of Tokyo began to analyze the behavior of radioactive materials in the fallout regions. The fallout has remained in situ and become strongly adsorbed within the soil over time. 137Cs was found to bind strongly to the fine clay, weathered biotite, and organic matter in the soil; therefore, it has not mobilized from mountainous regions, even after heavy rainfall. In farmland, the quantity of 137Cs in the soil absorbed by crop plants was small. The downward migration of 137Cs in soil is now estimated at 1-2 mm/year. The intake of 137Cs by trees occurred through the bark and not from the roots. This report summarizes the findings of research across a wide variety of agricultural specialties. PMID- 29321443 TI - A new arena in cardiac surgery: Pediatric coronary artery bypass surgery. AB - Prior to the 1970s, pediatric coronary artery bypass surgery (PCABS) was seldomly performed due to the lack of compelling surgical indications. The advent of coronary sequelae secondary to Kawasaki disease (KD) and the occurrence of coronary artery complications due to newly developed procedures, such as the arterial switch operation and early repair for intrinsic congenital coronary malformations, necessitated the development of PCABS. Because children grow rapidly and their life expectancy is very long, with increasing exercise capability requirements, the strategy for PCABS should differ from that for bypass surgery in adults. PCABS utilizing unilateral and bilateral internal thoracic arteries (ITA) has become the most reliable surgical method for children because of the distinct structure of ITAs being resistant to KD, growth potential according to the child's somatic growth and long-term patency without wall degeneration. This operation utilizing ITA grafts is now being performed worldwide and is referred to as the "Kitamura operation" for KD coronary sequelae. Notably, the use of vein grafts should be avoided in children. Likewise, this operation can now be successfully performed in infants using a surgical microscope, for congenital coronary disorders. Currently, PCABS with ITAs has been established as a new arena in cardiac surgery, following our initial attempts. PMID- 29321447 TI - Addendum to "Treatment of rheumatoid arthritis with biological agents - as a typical and common immune-mediated inflammatory disease". PMID- 29321445 TI - Negative regulation of B cell responses and self-tolerance to RNA-related lupus self-antigen. AB - The antibody response to RNA-related antigens such as Sm/RNP requires the endosomal RNA sensor TLR7, and this process is crucial in the development of systemic lupus erythematosus at least in animal models. The inhibitory B cell receptor CD72 is unique because it recognizes Sm/RNP and specifically inhibits the activation of Sm/RNP-reactive B cells by activating SH2-containing protein tyrosine phosphatase 1 (SHP-1). In the normal immune system, Sm/RNP-reactive B cells are tolerized by a unique mechanism that probably involves SHP-1. These self-reactive B cells appear in the peripheral lymphoid organs, differentiate into marginal zone B cells, and then undergo apoptosis without further maturation into plasma cells. Thus, CD72 is involved in the suppression of TLR7-mediated response to RNA in complexes with nuclear proteins that are resistant to nucleases, whereas free RNAs are degraded by nucleases before they encounter the endosomal RNA sensor. PMID- 29321446 TI - Chemical characteristics of hadal waters in the Izu-Ogasawara Trench of the western Pacific Ocean. AB - Vertical profiles of potential temperature, salinity, and some chemical components were obtained at a trench station (29 degrees 05'N, 142 degrees 51'E; depth = 9768 m) in the Izu-Ogasawara (Bonin) Trench in 1984 and 1994 to characterize the hadal waters below ~6000 m depth. We compared portions of both the 1984 and 1994 profiles with nearby data obtained between 1976 and 2013. Results demonstrated that the hadal waters had slightly higher potential temperature and nitrate and lower dissolved oxygen than waters at sill depths (~6000 m) outside the trench, probably due to the effective accumulation of geothermal heat and active biological processes inside the trench. The silicate, iron, and manganese profiles in 1984 showed slight but significant increases below ~6000 m depth, suggesting that these components may have been intermittently supplied from the trench bottom. Significant amounts of 222Rn in excess over 226Ra were detected in the hadal waters up to 2675 m from the bottom, reflecting laterally supplied 222Rn from the trench walls. PMID- 29321448 TI - Detection of Chlorine in a Non-aqueous Solution via Anodic Oxidation and a Photochemical Reaction. AB - In this study, we developed a new chlorine gas detection method using anodic oxidation and a photochemical reaction. Chlorine gas was temporarily solvated with an aprotic polar solvent having an extensive potential range in the positive direction, and the solvated chlorine molecule was detected by an anodic oxidation reaction. In addition, when combined with ultraviolet light irradiation, we could detect high sensitivity using the photochemical reaction. PMID- 29321449 TI - A Simple Paper-based Colorimetric Device for Rapid and Sensitive Urinary Oxalate Determinations. AB - In this work, a simple and inexpensive paper-based colorimetric device (cPAD) was developed for oxalate measurements. The colorimetric assay is based on the formation of formazan via the reduction of 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide (MTT) by oxalate decarboxylase and formate dehydrogenase on the paper device. After the sample was spotted on the device, MTT changed color from yellow to purple, and the purple color intensity correlated with the oxalate concentration. The quantitative detection of oxalate ranged from 10 - 1000 MUM, with a linear equation, y = 0.0086x + 34.978, and a correlation coefficient (R2) = 0.9994. The detection limit was 10 MUM by the naked eye. The recoveries of oxalate spiked in artificial urine samples evaluated by our cPADs were in the range of 81 - 92%. This simple cPAD for rapid and sensitive oxalate determination should be useful for diagnostic urinary oxalate measurements for point-of-care monitoring. PMID- 29321450 TI - Microfluidic Paper-based Analytical Devices for Determination of Creatinine in Urine Samples. AB - Simple, low-cost and portable microfluidic paper-based analytical devices (MUPADs) for determination of creatinine in urine samples were developed. The methodology was based on Jaffe reaction between the creatinine and picric acid in alkaline conditions, generating a colorimetric creatinine-alkaline picrate complex. The product exhibits an orange color that is clearly visible on the MUPADs. The color intensity of the complex, which is indicative of the concentration of creatinine, is then quantitatively determined using ImageJ software. Various experimental parameters were optimized to achieve the best performance of the MUPADs. Under the optimum conditions, a wide linear range was obtained in the range of 0.2 - 1 mM with a limit of detection and limit of quantitation of 0.08 and 0.26 mM, respectively. The accuracy of the proposed method was in good agreement with the standard Jaffe method. Finally, the developed devices were successfully applied for the determination of creatinine in urine samples. PMID- 29321451 TI - Enzyme Chemotaxis on Paper-based Devices. AB - Microfluidics has served as a technology for the design and development of a myriad of devices owing to their reduced reagent consumption rate and short sampling-to-result time. Chemotaxis is the movement of materials, particularly biological species, in response to the influence of chemical stimulation. Herein, we describe, for the first time, chemotactic behavior on a microfluidic paper based analytical device (MUPAD) to afford a distribution of products not obtainable under other (non-MUPAD) experimental conditions using as a model enzyme-substrate system glucose oxidase (GOx) and glucose. MUPADs are easily fabricated by patterning hydrophobic materials in hydrophilic paper. They are low cost, compatible with biological samples, and have shown promise as platforms for various applications and in resource-limited settings. PMID- 29321453 TI - Nanomaterial-functionalized Cellulose: Design, Characterization and Analytical Applications. AB - Cellulose-nanomaterial hybrid systems are promising platforms for the development of portable devices that can be used for fast and inexpensive analysis in the clinical, environmental and food monitoring fields. By combining the chemical and physical properties of the cellulosic network with the unique optical, electrical and catalytic functions of nanomaterials, it is possible to create versatile devices with engineered sensing functions. This review describes the most commonly used types of nanomaterials, their unique properties and assembly in hybrid structures in conjunction with cellulose paper and provides an overview of the most commonly used detection methodologies and their performance for selected applications. Finally, future perspectives and challenges to the implementation of these devices for real world applications are discussed, with focus on method optimization, validation and regulation in order to reach consumers. PMID- 29321454 TI - Paper-like Surface Microstructure Fabricated on a Polymer Surface by Femtosecond Laser Machining. AB - In this study, we demonstrate the precise control of fluid flow using femtosecond (FS) laser-induced microstructures. A microgroove structure inscribed on a poly(methyl methacrylate) (PMMA) substrate functions as a superhydrophilic membrane similar to paper. We first estimated the flow rate for pure water on microgrooves fabricated at various laser fluences in the range from 9.2 to 100.8 J/cm2. The results showed that the flow rate could be tuned in the range from 0.30 to 12.07 MUL/s by varying the laser irradiation parameters. The fluid flow was reproducible, with a calculated relative standard deviation (RSD%) of less than 8% in the flow rate. We then fabricated a microfilter for blood separation and estimated its filtration ability using artificial blood containing resin microparticles. This method would be useful in a technology related to a paper based diagnostic device for precise reagent manipulation. PMID- 29321455 TI - Characteristics of Microfluidic Paper-based Analytical Devices Fabricated by Four Different Methods. AB - We report on the effects of fabrication methods, photolithography, wax printing, screen printing, and craft cutting, on selected properties of microfluidic paper based analytical devices (MUPADs): cost, fabrication precision, wicking rate, and analytical accuracy. Photolithography requires numerous fabrication steps, and an oxygen plasma treatment is necessary when using an aqueous solution. Although the boundary between the hydrophobic and hydrophilic areas in the MUPAD is sharpest, the obtained K-scale intensity in measuring of protein concentrations is lower than those of the devices by other methods. Wax printing offers the simplest and fastest fabrication, although solution leakage measures should be taken to improve the wicking rate and to prevent cross-contamination. Screen printing also offers easy fabrication. The screen-printed MUPAD has a good wicking performance and shows a high detection intensity. Craft cutting allows automated fabrication of many MUPADs at once. The craft cut MUPAD has the fastest wicking rate among the four MUPADs due to bare cellulose fibers. We consider that the detection intensity of this MUPAD can be raised by optimizing the evaporation rate. PMID- 29321457 TI - "Paper-based Analytical Devices". PMID- 29321456 TI - Detection and Quantification of Polyquaterniums via Polyion-Sensitive Ion Selective Optodes Inkjet Printed on Cellulose Paper. AB - A universal method for the detection, quantification, and characterization of polyquaterniums (PQs) in a simple background electrolyte solution and in more complex recreational swimming pool water samples is presented. This method involves the application of polycation-sensitive ion-selective optodes (ISOs) prepared by inkjet printing dinonylnaphthalenesulfonic acid (H+DNNS-) and chromoionophore I directly onto WhatmanTM qualitative filter paper. No plasticizer or added polymer matrix is required for the fabrication of the sensing layer which is coated on the cellulose fibers of the filter paper. PQ-6, PQ-2, PQ-10, and poly(2-methacryloxyethyltrimethylammonium) chloride (PMETAC) are used as model PQ species for direct optical detection at ppm levels. We further demonstrate that PQ-6 can be detected in recreational swimming pool water samples using this new type of sensor, and that detection of polyanions is also possible using an indirect detection method. Lastly, to circumvent the challenge of polyion-sensitive ISOs exhibiting a pH dependence, the sensors were soaked in buffer and dried to provide local buffering for applied liquid samples and an optical signal independent of sample pH. PMID- 29321458 TI - Wax-Assisted One-Step Enzyme-Linked Immunosorbent Assay on Lateral Flow Test Devices. AB - Lateral flow tests (LFTs) are widely used analytical tools characterized by portability, operator simplicity and short analysis times. A remaining challenge is their limited analytical sensitivity, which in classical immunoassay formats is overcome by enzyme-linked immunosorbent assay (ELISA) formats. The implementation of ELISA to an LFT format however, is hampered by the complexity of the procedure requiring the enzyme substrate addition after sample addition. In this work, a simple method for automation of this procedure without user interference is presented. Originally used sample pads of LFTs have been replaced by hydrophobic wax-modified filter paper-based sample pads to realize a delayed flow a pre-deposited colorimetric ELISA substrate without other alterations to the classical lateral-flow immunoassay format. The performance of the system has been characterized by visualizing flow behavior and final proof-of-concept is provided by a model mouse IgG assay, achieving a limit of detection of 15.8 ng mL 1 from just a single application of the sample solution. PMID- 29321460 TI - Highly Sensitive Paper-based Analytical Devices with the Introduction of a Large Volume Sample via Continuous Flow. AB - The implementation of continuous flow in paper-based analytical devices (PADs) was challenging because of the large-volume introduction that was created; but this allowed for the development of novel types of PADs for preconcentration, separation, and sensitive detection. In this study, pump-free continuous flow was applied to a distance-based PAD for the determination of iron ions. Continuous flow enabled the introduction of a volume that exceeded what was necessary to fill the hydrophilic channel of a PAD. Thus, this continuous-flow method significantly improved both the limits of detection (LOD) and the limits of quantification (LOQ) for a distance-based PAD by increasing the sample volume that could be introduced into the PAD. The values for LOD and LOQ were 20 and 26 ppb, respectively, which were more than 150-times lower than that obtained using a small sample volume (50 MUL), and were comparable to those of inductively coupled plasma-atomic emission spectrometry. The continuous-flow technique was applicable to the determination of iron ions at levels of several tens of ppb in natural water without preconcentration. PMID- 29321459 TI - Practical High-Performance Lateral Flow Assay Based on Autonomous Microfluidic Replacement on a Film. AB - Although paper-based microfluidic devices are an ideal platform for point-of-care (POC) diagnostics, it is difficult to achieve microfluidic control required for sensitive analyses such as ELISA on a paper substrate. Here, we present a novel lateral-flow test chip that can perform operations similar to a pump, such as flowing, stopping, and replacing a solution, just by adding the solution onto an inlet port. The chip was fabricated by laminating paper, film, and adhesive tape. For sensitive and accurate detection in an immunoassay, the transparency and flatness of the substrate is crucial for precise analysis of weak light generated by a specific antigen-antibody reaction; however, paper is not flat and is opaque. Therefore, transparent film was applied to the detection area of the chip in this study. The chip showed a good correlation at 0.1 - 100 ng ml-1 concentrations of C-reactive protein, demonstrating high quantitative analysis of CRP in serum suitable for clinical trials. The signal intensity of the novel chip was higher than that of a chip made of nitrocellulose membrane, and the variation was smaller. The limit of detection of the chip was 0.1 ng ml-1, whereas that of the nitrocellulose membrane was 100 ng ml-1. This novel chip can be used for sensitive sandwich immunoassays just by adding solutions. PMID- 29321461 TI - Trends in Paper-based Electrochemical Biosensors: From Design to Application. AB - Electrochemical bio-sensing using paper-based detection systems is the main focus of this review. The different existing designs of 2-dimensional and 3-dimensional sensors, and fabrication techniques are discussed. This review highlights the effect of adopting different sensor designs, distinct fabrication techniques, as well as different modification methods, in order to produce reliable and reproducible reading. The use of various nanomaterials have been demonstrated in order to modify the surface of electrodes during fabrication to further enhance the signal for subsequent analysis. The reviewed sensors were classified into categories based on their applications, such as diagnostics, environmental and food testing. One of the major advantages of using paper-based electrochemical sensors is the potential for miniaturization, which only requires relatively small amount of samples, and the low cost for the purpose of mass production. Additionally, most of the devices reviewed were made to be portable, making them well-suited for on-site detection. Finally, paper-based detection is an ideal platform to fabricate cost-effective, user-friendly and sensitive electrochemical biosensors, with large capacity for customization depending on functional needs. PMID- 29321462 TI - Microfluidic Paper-based Analytical Device for the Determination of Hexavalent Chromium by Photolithographic Fabrication Using a Photomask Printed with 3D Printer. AB - This article describes a simple and inexpensive microfluidic paper-based analytical device (MUPAD) for the determination of hexavalent chromium (CrVI) in water samples. The MUPADs were fabricated on paper by photolithography using a photomask printed with a 3D printer and functionalized with reagents for a colorimetric assay. In the MUPAD, CrVI reacts with 1,5-diphenylcarbazide to form a violet-colored complex. Images of MUPADs were captured with a digital camera; then the red, green, and blue color intensity of each detection zone were measured using images processing software. The green intensity analysis was the best sensitive among the RGB color. A linear working range (40 - 400 ppm; R2 = 0.981) between the CrVI and green intensity was obtained with a detection limit of 30 ppm. All of the recoveries were between 94 and 109% in recovery studies on water samples, and good results were obtained. PMID- 29321463 TI - Use of a Smartphone as a Colorimetric Analyzer in Paper-based Devices for Sensitive and Selective Determination of Mercury in Water Samples. AB - A smartphone application, called CAnal, was developed as a colorimetric analyzer in paper-based devices for sensitive and selective determination of mercury(II) in water samples. Measurement on the double layer of a microfluidic paper-based analytical device (MUPAD) fabricated by alkyl ketene dimer (AKD)-inkjet printing technique with special design doped with unmodified silver nanoparticles (AgNPs) onto the detection zones was performed by monitoring the gray intensity in the blue channel of AgNPs, which disintegrated when exposed to mercury(II) on MUPAD. Under the optimized conditions, the developed approach showed high sensitivity, low limit of detection (0.003 mg L-1, 3SD blank/slope of the calibration curve), small sample volume uptake (two times of 2 MUL), and short analysis time. The linearity range of this technique ranged from 0.01 to 10 mg L-1 (r2 = 0.993). Furthermore, practical analysis of various water samples was also demonstrated to have acceptable performance that was in agreement with the data from cold vapor atomic absorption spectrophotometry (CV-AAS), a conventional method. The proposed technique allows for a rapid, simple (instant report of the final mercury(II) concentration in water samples via smartphone display), sensitive, selective, and on-site analysis with high sample throughput (48 samples h-1, n = 3) of trace mercury(II) in water samples, which is suitable for end users who are unskilled in analyzing mercury(II) in water samples. PMID- 29321464 TI - Microfluidic Paper-based Analytical Device for Quantification of Lead Using Reaction Band-length for Identification of Bullet Hole and Its Potential for Estimating Firing Distance. AB - A low-cost and user-friendly microfluidic paper-based analytical device (MUPAD) was developed for identification of bullet hole from gunshot residue (GSR) on cotton fabric target. The device (25 * 82 mm) is made of filter paper with a printed pattern consisting of a circular sample loading reservoir (6 mm i.d.), a circular waste reservoir (4 mm i.d.) and a straight flow channel (3 mm wide and 60 mm long). A sticker with a ruler scale in millimeters was mounted alongside the channel. The straight channel is first impregnated with rhodizonate and dried at ambient temperature. Tartrate extract of the target fabric is loaded on the sample reservoir. If Pb(II) ions are present in the extract, pink streak of Pb(II)-rhodizonate precipitate is formed as the sample solution flows from the reservoir along the channel. The length of the pink strip is employed to estimate the firing distance. PMID- 29321465 TI - Determination of Ascorbic Acid in Commercial Tablets Using Pencil Drawn Electrochemical Paper-based Analytical Devices. AB - This study describes the use of electrochemical paper-based analytical devices (ePADs) drawn with graphite pencil for the determination of ascorbic acid (AA) in commercial tablets. ePADs were fabricated using vegetal paper and graphite pencil. First, the three-electrode electrochemical cell drawn using a graphical software and toner lines were laser printed on the vegetal paper surface to delimit the electrode areas. Then, the electrode regions were manually painted with graphite pencil. Afterwards, the pseudo-reference electrode was defined with the deposition of silver ink over the graphite surface. Cyclic voltammetry and square wave voltammetry (SWV) experiments were performed to optimize the electroanalytical parameters as well as to quantitatively determine the AA concentration in two commercial tables. ePADs exhibited linear behavior for a concentration range between 0.5 and 3.0 mmol L-1. The achieved limit of detection and sensitivity were 70 MUmol L-1 and 0.47 MUA/mmol L-1, respectively. The AA concentration levels found by SWV experiments in both CenevitTM and Energil CTM were 2.80 +/- 0.02 and 3.10 +/- 0.01 mmol L-1, respectively. The accuracy of the proposed devices was investigated through recovery experiments in three concentration levels and it presented values between 95 and 115%. PMID- 29321466 TI - An Instrument-free Detection of Antioxidant Activity Using Paper-based Analytical Devices Coated with Nanoceria. AB - This work reports a portable distance-based detection paper device that has a thermometer-like shape for rapid, instrument-free determination of antioxidant activity using a nanoceria assay. The assay is based on partial reduction of cerium ion from Ce4+ to Ce3+ on nanoceria deposited along the detection channel by antioxidants present in food, giving highly reactive oxidation products. Either these products or the parent antioxidant compounds could then bind to the OH-rich ceria nanoparticles and generate charge transfer ceria-antioxidant complexes resulting in a yellow to brown color change. The distance of the brown color on the detection channel is directly proportional to antioxidant activity, and can be easily measured using an integrated ruler without the need of any external sophisticated instrument for detection. The paper sensor has been studied for the analysis of common antioxidants and its performance was validated against traditional antioxidant assays for 11 tea sample analyses. Using the Spearman rank correlation coefficient method, the antioxidant activity of tea samples obtained from the paper device correlated with the traditional assay at the 95% confidence level. The developed sensor provided a high recovery and tolerance limit and was stable for 50 days both when stored at ambient and low temperature (6 and -20 degrees C). The results demonstrated that the developed paper device is an alternative to allow for fast, simple, instrument-free, cheap, portable and high-throughput screening of antioxidant activity analysis in real samples. PMID- 29321469 TI - Publisher Correction: Superplasticity in a lean Fe-Mn-Al steel. AB - The original PDF version of this Article omitted to state that "Jeongho Han and Seok-Hyeon Kang contributed equally to this work" in the affiliations section. This has now been corrected in the PDF version of the Article. The HTML version was correct from the time of publication. PMID- 29321467 TI - Importance of Regular and Maintenance Therapy Adherence in Neuromyelitis Optica (NMO): Lessons from a Repeating Relapse Case. AB - BACKGROUND Neuromyelitis optica (NMO) is a rare demyelinating disease of the central nervous system; NMO predominantly affects the spinal cord and optic nerves. The diagnosis is based on history, clinical presentation, seropositive NMO-IgG antibody, and notably, exclusion of other diseases. Despite the absence of definitive therapeutic strategies for NMO, methylprednisolone pulse therapy and plasma exchange are used for acute phase treatment, while immunosuppressive agent(s) are recommended to prevent relapses and improve prognosis. Here, we report a repeating relapse NMO case due to lack of regular and maintenance therapy. CASE REPORT A 58-year-old female with chronic NMO presented with a three day history of new-onset right leg weakness and pain. The patient was diagnosed with NMO three years ago and presented with her fourth attacks. During her initial diagnosis, she was initiated on steroids. One year later, she developed the first relapse and was treated with steroids and rituximab, leading to 1.5 year remission. After the second relapse, steroids and rituximab was still given as maintenance therapy, but was not followed. Thus, the third relapse occurred in five months. During this hospitalization, she received initially high-dose solumedrol (1 g daily for five days) in addition to gabapentin 100 mg (gradually increased to 300 mg) three times a day for muscle spasms. Due to worsening of paresthesia and hemiparesis, it was decided to place her on plasma exchange treatment. After two plasma exchanges, the patient's condition was improved and she regained strength in her lower extremity. She completed five more cycles of plasma exchange, and was then discharged on steroid therapy (prednisone 20 mg daily for 10 days then taper) as maintenance therapy and with follow-up in neurology clinic. CONCLUSIONS Over the span of three years, the patient has had three relapses since her NMO diagnosis where her symptoms have worsened. Steroid therapy alone seemed not insufficient in managing her more recent relapses. Nonadherence to NMO treatment likely increased her risk for recurrence, thus regular and long-term maintenance therapy is imperative to delay the progression and prevent relapse in NMO. PMID- 29321468 TI - Length of Stay and Functional Outcomes Among Patients with Stroke Discharged from an Inpatient Rehabilitation Facility in Saudi Arabia. AB - BACKGROUND In many countries, the length of stay (LOS) for inpatient rehabilitation following stroke has gradually decreased. It is unclear whether this trend is associated with differences in functional outcomes, especially in developing countries. This study aimed to examine associations between LOS and functional outcomes among patients with stroke discharged from an inpatient rehabilitation facility in Saudi Arabia. MATERIAL AND METHODS This retrospective study included all patients (N=409) aged >=18 years who were admitted to an inpatient rehabilitation for stroke during 2008-2014. There were no deaths in the cohort during the study period. Patients were divided into 4 groups according to days of rehabilitation: <=30 days (n=114), 31-60 days (n=199), 61-90 days (n=72), and >90 days (n=24). Multivariate regression analyses were used to evaluate functional outcomes using the functional independence measure (FIM). RESULTS The fully adjusted model showed that higher total and subscale FIM scores were significantly associated with a LOS <=30 days (total beta: 18.2, standard error [SE]=4.43, P<=0.0001; motor-FIM: beta=13.9, SE=3.70, P=0.0002; cognitive-FIM: beta=4.3, SE=1.29, P=0.001), and 31-60 days (total beta: 11.3, SE=4.07, P=0.005; motor-FIM: beta=8.8, SE=3.40, P=0.009; cognitive-FIM: beta=2.4, SE=1.19, P=0.038) compared with >90 days. CONCLUSIONS A short or intermediate LOS is not necessarily associated with worse outcomes, assuming adequate care is provided. PMID- 29321470 TI - Author Correction: Re-designing Interleukin-12 to enhance its safety and potential as an anti-tumor immunotherapeutic agent. AB - The originally published version of this Article contained errors in Figure 4. In panel b, the square and diamond labels associated with the uppermost survival curve were incorrectly displayed as 'n' and 'u', respectively. These errors have now been corrected in both the PDF and HTML versions of the Article. PMID- 29321471 TI - Author Correction: Signatures of the topological s+- superconducting order parameter in the type-II Weyl semimetal T d -MoTe2. AB - The original version of this article omitted the following from the Acknowledgements: "CAM and AL were supported by the NSF MRSEC program through Columbia in the Center for Precision Assembly of Superstratic and Superatomic Solids (DMR-1420634). Additionally, this research used resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under 'Contract No. DE-AC02-05CH11231'." This has now been corrected in both the PDF and HTML versions of the article. PMID- 29321473 TI - Ancient environmental DNA reveals shifts in dominant mutualisms during the late Quaternary. AB - DNA-based snapshots of ancient vegetation have shown that the composition of high latitude plant communities changed considerably during the late Quaternary. However, parallel changes in biotic interactions remain largely uninvestigated. Here we show how mutualisms involving plants and heterotrophic organisms varied during the last 50,000 years. During 50-25 ka BP, a cool period featuring stadial interstadial fluctuations, arbuscular mycorrhizal and non-N-fixing plants predominated. During 25-15 ka BP, a cold, dry interval, the representation of ectomycorrhizal, non-mycorrhizal and facultatively mycorrhizal plants increased, while that of N-fixing plants decreased further. From 15 ka BP, which marks the transition to and establishment of the Holocene interglaciation, representation of arbuscular mycorrhizal plants decreased further, while that of ectomycorrhizal, non-mycorrhizal, N-fixing and wind-pollinated plants increased. These changes in the mutualist trait structure of vegetation may reflect responses to historical environmental conditions that are without current analogue, or biogeographic processes, such as spatial decoupling of mutualist partners. PMID- 29321472 TI - Desumoylase SENP6 maintains osteochondroprogenitor homeostasis by suppressing the p53 pathway. AB - The development, growth, and renewal of skeletal tissues rely on the function of osteochondroprogenitors (OCPs). Protein sumoylation/desumoylation has emerged as a pivotal mechanism for stem cell/progenitor homeostasis, and excessive sumoylation has been associated with cell senescence and tissue aging, but its role in regulating OCP function is unclear. Here we show that postnatal loss of the desumoylase SUMO1/sentrin-specific peptidase 6 (SENP6) causes premature aging. OCP-specific SENP6 knockout mice exhibit smaller skeletons, with elevated apoptosis and cell senescence in OCPs and chondrocytes. In Senp6 -/- cells, the two most significantly elevated pathways are p53 signaling and senescence associated secreted phenotypes (SASP), and Trp53 loss partially rescues the skeletal and cellular phenotypes caused by Senp6 loss. Furthermore, SENP6 interacts with, desumoylates, and stabilizes TRIM28, suppressing p53 activity. Our data reveals a crucial role of the SENP6-p53 axis in maintaining OCP homeostasis during skeletal development. PMID- 29321474 TI - Magnetisation process in the rare earth tetraborides, NdB4 and HoB4. AB - A field-induced magnetisation process in the frustrated antiferromagnets is often much richer compared to the materials without competing interactions. The applied field tends to stabilise unusual spin configurations which frequently results in the appearance of magnetisation plateaux. Here we report a study into the field induced magnetisation of the two frustrated rare earth tetraborides, HoB4 and NdB4. NdB4 shows a fractional magnetisation plateau occurring at M/M sat ~ [Formula: see text] before saturating in a field of 33 kOe. On cooling down to 0.5 K the temperature dependent susceptibility of NdB4 shows an unconventional transition where the system returns to the zero field antiferromagnetic state from a higher-temperature ferrimagnetic state. We are able to reconstruct the magnetic phase diagram of NdB4 from the magnetisation, susceptibility and resistivity measurements for both H [Formula: see text] c and H ? c. For HoB4, the most interesting behaviour is found at the lowest temperature of 0.5 K, where the field dependent magnetisation demonstrates a new fractional [Formula: see text]-magnetisation plateau. Further insight into the relations between the exchange interactions and single ion effects is gained through high-field magnetisation measurements in both HoB4 and NdB4. PMID- 29321475 TI - Intraskeletal histovariability, allometric growth patterns, and their functional implications in bird-like dinosaurs. AB - With their elongated forelimbs and variable aerial skills, paravian dinosaurs, a clade also comprising modern birds, are in the hotspot of vertebrate evolutionary research. Inferences on the early evolution of flight largely rely on bone and feather morphology, while osteohistological traits are usually studied to explore life-history characteristics. By sampling and comparing multiple homologous fore- and hind limb elements, we integrate for the first time qualitative and quantitative osteohistological approaches to get insight into the intraskeletal growth dynamics and their functional implications in five paravian dinosaur taxa, Anchiornis, Aurornis, Eosinopteryx, Serikornis, and Jeholornis. Our qualitative assessment implies a considerable diversity in allometric/isometric growth patterns among these paravians. Quantitative analyses show that neither taxa nor homologous elements have characteristic histology, and that ontogenetic stage, element size and the newly introduced relative element precocity only partially explain the diaphyseal histovariability. Still, Jeholornis, the only avialan studied here, is histologically distinct from all other specimens in the multivariate visualizations raising the hypothesis that its bone tissue characteristics may be related to its superior aerial capabilities compared to the non-avialan paravians. Our results warrant further research on the osteohistological correlates of flight and developmental strategies in birds and bird-like dinosaurs. PMID- 29321477 TI - Giant electrocaloric effect in a wide temperature range in PbTiO3 nanoparticle with double-vortex domain structure. AB - Electrocaloric effect (ECE) has the potential applications in solid-state refrigeration with the features of high efficiency and environmentally friendly. Large adiabatic temperature change in a wide temperature range is needed for electrocaloric effect to meet the requirement of commercially application. In this work, giant electrocaloric effect is found in PbTiO3 nanoparticle with double-vortex domain structure in a wide temperature range by using phase field method, which the lowest and highest adiabatic temperature change (DeltaT) is 7.2 K and 16.5 K, respectively. The influence of misfit strain on the ECE of PbTiO3 nanoparticle with the double-vortex domain structure is investigated, and results show that the compress misfit strain can enhance the ECE, but the tensile misfit strain reduces the ECE. This work reveals a way to obtain giant ECE of ferroelectric materials by domain engineering and strain engineering in a wide temperature range. PMID- 29321476 TI - Sample handling of gastric tissue and O-glycan alterations in paired gastric cancer and non-tumorigenic tissues. AB - Sample collection, handling and storage are the most critical steps for ensuring the highest preservation of specimens. Pre-analytical variability can influence the results as protein signatures alter rapidly after tissue excision or during long-term storage. Hence, we evaluated current state-of-the-art biobank preservation methods from a glycomics perspective and analyzed O-glycan alterations occurring in the gastric cancer tissues. Paired tumor and adjacent normal tissue samples were obtained from six patients undergoing gastric cancer surgery. Collected samples (n = 24) were either snap-frozen or heat stabilized and then homogenized. Glycans were released from extracted glycoproteins and analyzed by LC-MS/MS. In total, the relative abundance of 83 O-glycans and 17 derived structural features were used for comparison. There was no statistically significant difference found in variables between snap frozen and heat-stabilized samples, which indicated the two preservation methods were comparable. The data also showed significant changes between normal and cancerous tissue. In addition to a shift from high sialylation in the cancer area towards blood group ABO in the normal area, we also detected that the LacdiNAc epitope (N,N' diacetyllactosamine) was significantly decreased in cancer samples. The O-glycan alterations that are presented here may provide predictive power for the detection and prognosis of gastric cancer. PMID- 29321478 TI - Reprogramming of pro-inflammatory human macrophages to an anti-inflammatory phenotype by bile acids. AB - Cholestasis is caused by autoimmune reactions, drug-induced hepatotoxicity, viral infections of the liver and the obstruction of bile ducts by tumours or gallstones. Cholestatic conditions are associated with impaired innate and adaptive immunity, including alterations of the cellular functions of monocytes, macrophages, NK cells and T-cells. Bile acids act as signalling molecules, affecting lipopolysaccharide (LPS)-induced cytokine expression in primary human macrophages. The present manuscript investigates the impact of bile acids, such as taurolithocholic acid (TLC), on the transcriptome of human macrophages in the presence or absence of LPS. While TLC itself has almost no effect on gene expression under control conditions, this compound modulates the expression of 202 out of 865 transcripts in the presence of LPS. Interestingly, pathway analysis revealed that TLC specifically supressed the expression of genes involved in mediating pro-inflammatory effects, phagocytosis, interactions with pathogens and autophagy as well as the recruitment of immune cells, such as NK cells, neutrophils and T cells. These data indicate a broad influence of bile acids on inflammatory responses and immune functions in macrophages. These findings may contribute to the clinical observation that patients with cholestasis present a lack of response to bacterial or viral infections. PMID- 29321479 TI - Contrasting patterns of leaf trait variation among and within species during tropical dry forest succession in Costa Rica. AB - A coordinated response to environmental drivers amongst individual functional traits is central to the plant strategy concept. However, whether the trait co ordination observed at the global scale occurs at other ecological scales (especially within species) remains an open question. Here, for sapling communities of two tropical dry forest types in Costa Rica, we show large differences amongst traits in the relative contribution of species turnover and intraspecific variation to their directional changes in response to environmental changes along a successional gradient. We studied the response of functional traits associated with the leaf economics spectrum and drought tolerance using intensive sampling to analyse inter- and intra-specific responses to environmental changes and ontogeny. Although the overall functional composition of the sapling communities changed during succession more through species turnover than through intraspecific trait variation, their relative contributions differed greatly amongst traits. For instance, community mean specific leaf area changed mostly due to intraspecific variation. Traits of the leaf economics spectrum showed decoupled responses to environmental drivers and ontogeny. These findings emphasise how divergent ecological mechanisms combine to cause great differences in changes of individual functional traits over environmental gradients and ecological scales. PMID- 29321481 TI - Anomalous Hall-like effect probe of antiferromagnetic domain wall. AB - Of crucial importance to antiferromagnetic (AF) spintronic devices, AF domain wall (AFDW), created in exchange biased Y3Fe5O12/Ni0.50Co0.50O (NiCoO)/Pt, is characterized by anomalous Hall-like effect through magnetic proximity effect and spin Hall magnetoresistance at NiCoO/Pt interface. The AFDW thickness, in the order of nanometers, has been for the first time proved in experiments to increase with increasing temperature. AF spins within AFDW show the same chirality in decent and ascent branches of ferromagnetic magnetization reversal process. Moreover, the uncompensated magnetic moment at the NiCoO/Pt interface is of perpendicular magnetization anisotropy and changes linearly in magnitude with temperature due to the reduced coordination of the magnetic atoms on the AF surface. This work will help to clarify the mechanism of the spin current propagation in AF materials and fully understand the physics behind exchange bias. PMID- 29321480 TI - Domain swapping and SMYD1 interactions with the PWWP domain of human hepatoma derived growth factor. AB - The human hepatoma-derived growth factor (HDGF), containing the chromatin associated N-terminal PWWP domain capable of binding the SMYD1 promoter, participates in various cellular processes and is involved in human cancers. We report the first crystal structures of the human HDGF PWWP domain (residues 1 100) in a complex with SMYD1 of 10 bp at 2.84 A resolution and its apo form at 3.3 A, respectively. The structure of the apo PWWP domain comprises mainly four beta-strands and two alpha-helices. The PWWP domain undergoes domain swapping to dramatically transform its secondary structures, altering the overall conformation from monomeric globular folding into an extended dimeric structure upon DNA binding. The flexible loop2, as a hinge loop with the partially built structure in the apo PWWP domain, notably refolds into a visible and stable alpha helix in the DNA complex. The swapped PWWP domain interacts with the minor grooves of the DNA through residues Lys19, Gly22, Arg79 and Lys80 in varied ways on loops 1 and 4 of the two chains, and the structure becomes more rigid than the apo form. These novel structural findings, together with physiological and activity assays of HDGF and the PWWP domain, provide new insights into the DNA binding mechanism of HDGF during nucleosomal functions. PMID- 29321482 TI - Enhanced YAP expression leads to EGFR TKI resistance in lung adenocarcinomas. AB - Epidermal growth factor receptor (EGFR) mutation is prevalently expressed in lung adenocarcinoma cases and acts as one of the major driving oncogenes. EGFR tyrosine kinase inhibitors (TKIs) have been used in patients with EGFR-mutant as an effective targeted therapy in lung adenocarcinoma, but drug resistance and tumor recurrence inevitably occurs. Recently, Yes-associate protein (YAP) has been reported to promote multiple cancer cell properties, such as promoting cell proliferation, epithelial-mesenchymal transition and drug resistance. This study investigated the roles of YAP in TKI-resistant lung adenocarcinoma. In TKI sensitive cells, enhanced YAP expression leads to TKI resistant. Also, upregulated YAP expression and activation were detected in long-term TKI-induced resistant cells. With reduced YAP expression using shRNA or YAP inhibitors, TKI resistant cells become TKI-sensitive. reduced xenograft tumor size in nude mice and Moreover, combined EGFR TKI and a YAP inhibitor, statin, prolonged survival among lung cancer patients analyzed by Taiwan National Health Insurance Research database. These observations revealed the importance of YAP in promoting TKI resistance and combined YAP inhibition can be a potential therapy delaying the occurrence of TKI-resistance in lung adenocarcinoma. PMID- 29321483 TI - Extracellular Total Electrolyte Concentration Imaging for Electrical Brain Stimulation (EBS). AB - Techniques for electrical brain stimulation (EBS), in which weak electrical stimulation is applied to the brain, have been extensively studied in various therapeutic brain functional applications. The extracellular fluid in the brain is a complex electrolyte that is composed of different types of ions, such as sodium (Na+), potassium (K+), and calcium (Ca+). Abnormal levels of electrolytes can cause a variety of pathological disorders. In this paper, we present a novel technique to visualize the total electrolyte concentration in the extracellular compartment of biological tissues. The electrical conductivity of biological tissues can be expressed as a product of the concentration and the mobility of the ions. Magnetic resonance electrical impedance tomography (MREIT) investigates the electrical properties in a region of interest (ROI) at low frequencies (below 1 kHz) by injecting currents into the brain region. Combining with diffusion tensor MRI (DT-MRI), we analyze the relation between the concentration of ions and the electrical properties extracted from the magnetic flux density measurements using the MREIT technique. By measuring the magnetic flux density induced by EBS, we propose a fast non-iterative technique to visualize the total extracellular electrolyte concentration (EEC), which is a fundamental component of the conductivity. The proposed technique directly recovers the total EEC distribution associated with the water transport mobility tensor. PMID- 29321484 TI - Loss of tolerance to gut immunity protein, glycoprotein 2 (GP2) is associated with progressive disease course in primary sclerosing cholangitis. AB - Glycoprotein 2[GP2] is a specific target of pancreatic autoantibodies[PAbs] in Crohn's disease(CD) and is involved in gut innate immunity processes. Our aim was to evaluate the prevalence and prognostic potential of PAbs in primary sclerosing cholangitis(PSC). Sixty-five PSC patients were tested for PAbs by indirect immunofluorescence and compared with healthy (n = 100) and chronic liver disease controls(CLD, n = 488). Additionally, a panel of anti-microbial antibodies and secretory (s)IgA levels were measured, as markers of bacterial translocation and immune dysregulation. PAbs were more frequent in PSC(46.2%) compared to controls(healthy:0% and CLD:4.5%), [P < 0.001, for each]. Occurrence of anti-GP2 antibody was 30.8% (20/65) and was exclusively of IgA isotype. Anti-GP2 IgA positive patients had higher sIgA levels (P = 0.021). With flow-cytometry, 68.4% (13/19) of anti-GP2 IgA antibodies were bound with secretory component, suggesting an active retro-transportation of anti-GP2 from the gut lumen to the mucosa. Anti-GP2 IgA was associated with shorter transplant-free survival [PLogRank < 0.01] during the prospective follow-up (median, IQR: 87 [9-99] months) and remained an independent predictor after adjusting for Mayo risk score(HR: 4.69 [1.05-21.04], P = 0.043). These results highlight the significance of gut-liver interactions in PSC. Anti-GP2 IgA might be a valuable tool for risk stratification in PSC and considered as a potential therapeutic target. PMID- 29321486 TI - New insights on basivenal sclerites using 3D tools and homology of wing veins in Odonatoptera (Insecta). AB - Being implied in flight, mimetism, communication, and protection, the insect wings were crucial organs for the mega diversification of this clade. Despite several attempts, the problem of wing evolution remains unresolved because the basal parts of the veins essential for vein identification are hidden in the basivenal sclerites. The homologies between wing characters thus cannot be accurately verified, while they are of primary importance to solve long-standing problems, such as the monophyly of the Palaeoptera, viz. Odonatoptera, Panephemeroptera, and Palaeozoic Palaeodictyopterida mainly known by their wings. Hitherto the tools to homologize venation were suffering several cases of exceptions, rendering them unreliable. Here we reconstruct the odonatopteran venation using fossils and a new 3D imaging tool, resulting congruent with the concept of Riek and Kukalova-Peck, with important novelties, viz. median anterior vein fused to radius and radius posterior nearly as convex as radius anterior (putative synapomorphies of Odonatoptera); subcostal anterior (ScA) fused to costal vein and most basal primary antenodal crossvein being a modified posterior branch of ScA (putative synapomorphies of Palaeoptera). These findings may reveal critical for future analyses of the relationships between fossil and extant Palaeoptera, helping to solve the evolutionary history of the insects as a whole. PMID- 29321485 TI - Role of diffusion-weighted imaging in the discrimination of benign and metastatic parotid area lymph nodes in patients with nasopharyngeal carcinoma. AB - To assess the utility of apparent diffusion coefficient (ADC) determined on diffusion-weighted MR imaging (DWI) to differentiate between benign and malignant parotid area lymph nodes (PLN) in nasopharyngeal carcinoma (NPC) patients. Thirty nine consecutive NPC patients with a total of 40 enlarged, biopsied PLNs underwent DWI examination. ADC values for benign and malignant PLNs were measured and compared. Receiver operating characteristic (ROC) curve analysis was to evaluate the optimal threshold level of ADC values for metastatic PLNs. The kappa was to assess the degree of agreement between histopathological diagnoses and ADC values, or imaging features of PLNs on MRI. We found the mean ADC value for benign PLNs was markedly higher than malignant PLNs. A threshold ADC of 1.01 * 10 3 mm2/s was associated with a sensitivity of 85.7% and a specificity of 72.7% (area under the curve: 0.84). A moderate agreement was observed between the histopathological diagnosis and the threshold of ADC value (k value: 0.483). However, short axis diameter, necrosis, extranodal extension, and regional grouping of PLNs on MRI showed only a fair agreement with the histopathological diagnosis (k value: 0.257, 0.305, 0.276, and 0.205, respectively). Therefore, DWI may be a promising technique to differentiate metastatic from benign PLNs. PMID- 29321487 TI - Rare Earth Elements Removal from Water Using Natural Polymers. AB - Adsorption of rare earth metals, Eu (III) and Nd (III) was investigated on a new environmental friendly material, thiourea functionalized cellulose. Before usage, the synthesized material was characterized by Fourrier Transform Infrared spectroscopy and energy dispersive X-ray analysis. The influence of adsorption parameters (adsorbent dosage, time, temperature and initial metal concentration) on adsorption capacity was investigated. Experimental data were fitted by using the pseudo-first-order and pseudo-second-order kinetic models. Simultaneously thermodynamic and equilibrium studies have been carried out using Langmuir, Freundlich and Sips isotherm. Maximum adsorption capacities were reached in 30 minutes at 298 K having the value of 27 mg/g for Eu (III) and 73 mg/g for Nd (III). PMID- 29321488 TI - Bt cotton producing Cry1Ac and Cry2Ab does not harm two parasitoids, Cotesia marginiventris and Copidosoma floridanum. AB - Cabbage looper, Trichoplusia ni (Hubner) is an important lepidopteran pest on many vegetable and greenhouse crops, and some field crops. Although there are no commercial transgenic Bt vegetable or greenhouse crops, T. ni is a target of Bollgard II cotton, which produces Cry1Ac and Cry2Ab. We expand on previous work that examined the effect of Bt crops on parasitoids using Bt-resistant lepidopteran populations as hosts. Cry1Ac/Cry2Ab-resistant T. ni larvae were used to eliminate host quality effects and to evaluate the direct effects of Bt cotton on the parasitoids Copidosoma floridanum (Ashmead) and Cotesia marginiventris (Cresson). These tri-trophic studies confirm that Bt cotton had no significant impact on development, success of parasitism, survival and adult longevity of C. marginiventris when using Bt-resistant T. ni fed on Bt cotton. Similarly, this Bt cotton had no significant impact on the development, mummy weight and the number of progeny produced by C. floridanum. Our studies verified that lyophilized Bt crop tissue maintained its insecticidal bioactivity when incorporated into an artificial diet, demonstrating that hosts and parasitoids were exposed to active Cry proteins. The egg-larval parasitoid C. floridanum, or similar species that consume their entire host, should be considered useful surrogates in risk assessment of Bt crops to non-target arthropods. PMID- 29321489 TI - Effects of slit width on water permeation through graphene membrane by molecular dynamics simulations. AB - Graphene membranes can be used for nanoscale filtration to remove atoms and are expected to be used for separation. To realize high-permeability and high filtration performance, we must understand the flow configuration in the nanochannels. In this study, we investigated the applicability of continuum dynamics laws to water flow through a graphene slit. We calculated the permeability of the flow through a slit using classical molecular dynamics (MD) and compared the MD simulation results for different Knudsen numbers (Kn) to predictions based on the no-slip model and slip model. Consequently, the flow through the graphene nanoslit was treated as slip flow only in the range of Kn < 0.375. This study provides guidelines for the development of graphene filtration membranes. PMID- 29321490 TI - The interaction between BSA and DOTAP at the air-buffer interface. AB - In this article, the interaction between bovine serum albumin (BSA) and the cationic 1,2-dioleoyl-3-trimethylammonium-propane (DOTAP) at the air-buffer interface was investigated at different subphase's pH values (pH = 3, 5 and 10). Surface pressure measurements (pi - A) and penetration kinetics process (pi - t) were carried out to reveal the interaction mechanism and the dynamical behavior. The data showed that pi - A isotherms moved towards larger mean molecular area when the concentration of BSA ([BSA]) increased, the amount of BSA adsorbed onto DOTAP monolayer reached a threshold value at a [BSA] of 5 * 10-8 M, and BSA desorbed from the lipid monolayer as time goes by. The results revealed that the association of BSA with DOTAP at the air-buffer interface was affected by the subphase's pH value. When pH = 10, the interaction mechanism between them was a combination of hydrophobic interaction and electrostatic attraction, so BSA molecules could be well separated and purified from complex mixtures. AFM images demonstrated that pH value and [BSA] could affect the morphology feature of DOTAP monolayer and the adsorption and desorption processes of BSA. So the study provides an important experimental basis and theoretical support for learning the interaction mechanism among biomolecules in separation and purification of biomolecules and biosensor. PMID- 29321491 TI - Selective 6H-SiC White Light Emission by Picosecond Laser Direct Writing. AB - Displaying a full or tuneable emission spectrum with highly efficient is significant for luminescent materials used in solid-state lighting. Silicon carbide (SiC) has potential for use in photoelectric devices that operate under extreme conditions. In this paper, we present a method to selectively modify the photoluminescence (PL) properties of SiC by ultrafast laser direct writing. Based on this method, visible white PL could be observed by the naked eye at room temperature under ultraviolet excitation. By increasing the laser power intensity from 40 to 80 MW/cm2, the PL of the irradiated samples increased and pure white sunlight-like emission with controlled colour temperature was realised. The optimised laser power intensity of 65 MW/cm2 achieved a desirable colour temperature similar to that of sunlight (x = 0.33, y = 0.33 and colour temperature of 5500 K) and suppressed blue emission. By direct laser irradiation along designed scanning path, a large-scale and arbitrary pattern white emission was fabricated. The origin of the white luminescence was a mixture of multiple luminescent transitions of oxygen-related centres that turned the Si-C system into silicon oxycarbide. This work sheds light on new luminescent materials and a preparation technique for next-generation lighting devices. PMID- 29321492 TI - Quantification of silver nanoparticle toxicity to algae in soil via photosynthetic and flow-cytometric analyses. AB - Soil algae, which have received attention for their use in a novel bioassay to evaluate soil toxicity, expand the range of terrestrial test species. However, there is no information regarding the toxicity of nanomaterials to soil algae. Thus, we evaluated the effects of silver nanoparticles (0-50 mg AgNPs/kg dry weight soil) on the soil alga Chlamydomonas reinhardtii after six days, and assessed changes in biomass, photosynthetic activity, cellular morphology, membrane permeability, esterase activity, and oxidative stress. The parameters measured were markedly affected by AgNP-induced stress at 50 mg AgNPs/kg dry weight soil, where soil algal biomass, three measures of photosynthetic activity (area, reaction center per absorption flux, and reaction center per trapped energy flux), and esterase activity decreased. AgNPs also induced increases in both cell size and membrane permeability at 50 mg AgNPs/kg dry weight soil. In addition to the increase in cell size observed via microscopy, a mucilaginous sheath formed as a protective barrier against AgNPs. Thus, the toxicity of AgNPs can be effectively quantified based on the physiological, biochemical, and morphological responses of soil algae, where quantifying the level of toxicity of AgNPs to soil algae could prove to be a useful method in terrestrial ecotoxicology. PMID- 29321493 TI - Noncontact and instant detection of phosphor temperature in phosphor-converted white LEDs. AB - Phosphor-converted white light-emitting diodes (pc-WLEDs) have become a major light source in general lighting. To stabilize the photometric characteristics of pc-WLEDs, much effort has been made to manage the heat dissipation of the LED dies. The thermal problems of the phosphor parts, a critical reliability concern for pc-WLEDs, have recently attracted academic interest. This study proposed a practical approach for measuring phosphor temperature in an operating pc-WLED using a noncontact, instant detection method to remotely monitor the emission spectrum. Conventionally, an infrared camera or thermocouples have been used to measure temperature. An IR camera requires good calibration on the emissivity and is usually blocked by the lens or other components covered on the phosphors. Moreover, a thermocouple requires time to reach the thermal equivalence between the detector and the sample under testing, and this approach is destructive when used for inner detection. Our approach has advantages over the conventional methods because it is noninvasive, noncontact, and instant, and inner detection. The approach is also independent of the peak wavelength of pumping lights, the concentration and thickness of phosphor, and correlated color temperatures. PMID- 29321494 TI - Transplantation of olfactory ensheathing cells on functional recovery and neuropathic pain after spinal cord injury; systematic review and meta-analysis. AB - There are considerable disagreements on the application of olfactory ensheathing cells (OEC) for spinal cord injury (SCI) rehabilitation. The present meta analysis was designed to investigate the efficacy of OEC transplantation on motor function recovery and neuropathic pain alleviation in SCI animal models. Accordingly, all related studies were identified and included. Two independent researchers assessed the quality of the articles and summarized them by calculating standardized mean differences (SMD). OEC transplantation was shown to significantly improve functional recovery (SMD = 1.36; 95% confidence interval: 1.05-1.68; p < 0.001). The efficacy of this method was higher in thoracic injuries (SMD = 1.41; 95% confidence interval: 1.08-1.74; p < 0.001) and allogeneic transplants (SMD = 1.53; 95% confidence interval: 1.15-1.90; p < 0.001). OEC transplantation had no considerable effects on the improvement of hyperalgesia (SMD = -0.095; 95% confidence interval: -0.42-0.23; p = 0.57) but when the analyses were limited to studies with follow-up >=8 weeks, it was associated with increased hyperalgesia (SMD = -0.66; 95% confidence interval: 1.28-0.04; p = 0.04). OEC transplantation did not affect SCI-induced allodynia (SMD = 0.54; 95% confidence interval: -0.80-1.87; p = 0.43). Our findings showed that OEC transplantation can significantly improve motor function post-SCI, but it has no effect on allodynia and might lead to relative aggravation of hyperalgesia. PMID- 29321495 TI - Tanshinone IIA sulfonate protects against cigarette smoke-induced COPD and down regulation of CFTR in mice. AB - Chronic obstructive pulmonary disease (COPD) is a chronic lung disease characterized by abnormal inflammation, persistent and progressive lung function decline. The anti-inflammatory actions of tanshinone IIA, which is the most important active component from Chinese herbal medicine Danshen, have been well studied. However, it remains unknown whether sodium tanshinone IIA sulfonate (STS) protects against the development of COPD. Here we found that STS inhalation (5 mg/kg, 30 min per session, twice a day) significantly attenuated lung function decline, airspace enlargement, mucus production, bronchial collagen deposition, inflammatory responses and oxidative stress caused by cigarette smoke (CS) and lipopolysaccharide (LPS) exposures in mice. Moreover, treatment with STS (10 MUg/ml) reduced CS extract (CSE)-induced IL-6 and IL-8 secretion in human bronchial epithelial (16HBE) cells. The anti-inflammatory actions of STS were associated with inhibition of ERK1/2 and NF-kappaB activations. Interestingly, STS inhibited CS-induced reduction of cystic fibrosis transmembrane conductance regulator (CFTR) in mouse lungs and in 16HBE cells. Treatment with a specific CFTR inhibitor CFTR-Inh172 augmented CSE-induced ERK1/2 and NF-kappaB-dependent inflammatory responses, but abolished the inhibitory action of STS on IL-6 and IL 8 secretion in 16HBE cells. These results demonstrate that CS-induced COPD and down-regulation of CFTR are prevented by STS. PMID- 29321496 TI - Genistein promotes ionizing radiation-induced cell death by reducing cytoplasmic Bcl-xL levels in non-small cell lung cancer. AB - Genistein (GEN) has been previously reported to enhance the radiosensitivity of cancer cells; however, the detailed mechanisms remain unclear. Here, we report that GEN treatment inhibits the cytoplasmic distribution of Bcl-xL and increases nuclear Bcl-xL in non-small cell lung cancer (NSCLC). Interestingly, our in vitro data show that ionizing radiation IR treatment significantly increases IR-induced DNA damage and apoptosis in a low cytoplasmic Bcl-xL NSCLC cell line compared to that of high cytoplasmic Bcl-xL cell lines. In addition, clinical data also show that the level of cytoplasmic Bcl-xL was negatively associated with radiosensitivity in NSCLC. Furthermore, we demonstrated that GEN treatment enhanced the radiosensitivity of NSCLC cells partially due to increases in Beclin 1-mediated autophagy by promoting the dissociation of Bcl-xL and Beclin-1. Taken together, these findings suggest that GEN can significantly enhance radiosensitivity by increasing apoptosis and autophagy due to inhibition of cytoplasmic Bcl-xL distribution and the interaction of Bcl-xL and Beclin-1 in NSCLC cells, respectively. PMID- 29321497 TI - Formation of Two-dimensional Electron Gas at Amorphous/Crystalline Oxide Interfaces. AB - Experimentally, we found the percentage of low valence cations, the ionization energy of cations in film, and the band gap of substrates to be decisive for the formation of two-dimensional electron gas at the interface of amorphous/crystalline oxide (a-2DEG). Considering these findings, we inferred that the charge transfer from the film to the interface should be the main mechanism of a-2DEG formation. This charge transfer is induced by oxygen defects in film and can be eliminated by the electron-absorbing process of cations in the film. Based on this, we propose a simple dipole model that successfully explains the origin of a-2DEG, our experimental findings, and some important properties of a-2DEG. PMID- 29321499 TI - May measurement month 2017-a concerted global effort to raise awareness of elevated blood pressure. PMID- 29321498 TI - The PPI network analysis of mRNA expression profile of uterus from primary dysmenorrheal rats. AB - To elucidate the mechanisms of molecular regulations underlying primary dysmenorrhea (PD), we used our previously published mRNA expression profile of uterus from PD syndrome rats to construct protein-protein interactions (PPI) network via STRING Interactome. Consequently, 34 subnetworks, including a "continent" (Subnetwork 1) and 33 "islands" (Subnetwork 2-34) were generated. The nodes, with relative expression ratios, were visualized in the PPI networks and their connections were identified. Through path and module exploring in the network, the bridges were found from pathways of cellular response to calcium ion, SMAD protein signal transduction, regulation of transcription from RNA polymerase II promoter in response to stress and muscle stretch that were significantly enriched by the up-regulated mRNAs, to the cascades of cAMP metabolic processes and positive regulation of cyclase activities by the down regulated ones. This link is mainly dependent on Fos/Jun - Vip connection. Our data, for the first time, report the PPI network analysis of differentially expressed mRNAs in the uterus of PD syndrome rats, to give insight into screening drugs and find new therapeutic strategies to relieve PD. PMID- 29321500 TI - On-Chip Fluorescence Switching System for Constructing a Rewritable Random Access Data Storage Device. AB - We report the development of on-chip fluorescence switching system based on DNA strand displacement and DNA hybridization for the construction of a rewritable and randomly accessible data storage device. In this study, the feasibility and potential effectiveness of our proposed system was evaluated with a series of wet experiments involving 40 bits (5 bytes) of data encoding a 5-charactered text (KRIBB). Also, a flexible data rewriting function was achieved by converting fluorescence signals between "ON" and "OFF" through DNA strand displacement and hybridization events. In addition, the proposed system was successfully validated on a microfluidic chip which could further facilitate the encoding and decoding process of data. To the best of our knowledge, this is the first report on the use of DNA hybridization and DNA strand displacement in the field of data storage devices. Taken together, our results demonstrated that DNA-based fluorescence switching could be applicable to construct a rewritable and randomly accessible data storage device through controllable DNA manipulations. PMID- 29321501 TI - Green synthesis of graphene oxide by seconds timescale water electrolytic oxidation. AB - Graphene oxide is highly desired for printing electronics, catalysis, energy storage, separation membranes, biomedicine, and composites. However, the present synthesis methods depend on the reactions of graphite with mixed strong oxidants, which suffer from explosion risk, serious environmental pollution, and long reaction time up to hundreds of hours. Here, we report a scalable, safe and green method to synthesize graphene oxide with a high yield based on water electrolytic oxidation of graphite. The graphite lattice is fully oxidized within a few seconds in our electrochemical oxidation reaction, and the graphene oxide obtained is similar to those achieved by the present methods. We also discuss the synthesis mechanism and demonstrate continuous and controlled synthesis of graphene oxide and its use for transparent conductive films, strong papers, and ultra-light elastic aerogels. PMID- 29321502 TI - The peroxisomal AAA-ATPase Pex1/Pex6 unfolds substrates by processive threading. AB - Pex1 and Pex6 form a heterohexameric motor essential for peroxisome biogenesis and function, and mutations in these AAA-ATPases cause most peroxisome-biogenesis disorders in humans. The tail-anchored protein Pex15 recruits Pex1/Pex6 to the peroxisomal membrane, where it performs an unknown function required for matrix protein import. Here we determine that Pex1/Pex6 from S. cerevisiae is a protein translocase that unfolds Pex15 in a pore-loop-dependent and ATP-hydrolysis dependent manner. Our structural studies of Pex15 in isolation and in complex with Pex1/Pex6 illustrate that Pex15 binds the N-terminal domains of Pex6, before its C-terminal disordered region engages with the pore loops of the motor, which then processively threads Pex15 through the central pore. Furthermore, Pex15 directly binds the cargo receptor Pex5, linking Pex1/Pex6 to other components of the peroxisomal import machinery. Our results thus support a role of Pex1/Pex6 in mechanical unfolding of peroxins or their extraction from the peroxisomal membrane during matrix-protein import. PMID- 29321503 TI - IL-34 and CSF-1 display an equivalent macrophage differentiation ability but a different polarization potential. AB - CSF-1 and IL-34 share the CSF-1 receptor and no differences have been reported in the signaling pathways triggered by both ligands in human monocytes. IL-34 promotes the differentiation and survival of monocytes, macrophages and osteoclasts, as CSF-1 does. However, IL-34 binds other receptors, suggesting that differences exist in the effect of both cytokines. In the present study, we compared the differentiation and polarization abilities of human primary monocytes in response to CSF-1 or IL-34. CSF-1R engagement by one or the other ligands leads to AKT and caspase activation and autophagy induction through expression and activation of AMPK and ULK1. As no differences were detected on monocyte differentiation, we investigated the effect of CSF-1 and IL-34 on macrophage polarization into the M1 or M2 phenotype. We highlighted a striking increase in IL-10 and CCL17 secretion in M1 and M2 macrophages derived from IL-34 stimulated monocytes, respectively, compared to CSF-1 stimulated monocytes. Variations in the secretome induced by CSF-1 or IL-34 may account for their different ability to polarize naive T cells into Th1 cells. In conclusion, our findings indicate that CSF-1 and IL-34 exhibit the same ability to induce human monocyte differentiation but may have a different ability to polarize macrophages. PMID- 29321504 TI - Structural ensemble-based docking simulation and biophysical studies discovered new inhibitors of Hsp90 N-terminal domain. AB - Heat shock protein 90 (Hsp90) is one of the most abundant cellular proteins and plays a substantial role in the folding of client proteins. The inhibition of Hsp90 has been regarded as an attractive therapeutic strategy for treating cancer because many oncogenic kinases are Hsp90 client proteins. In this study, we report new inhibitors that directly bind to N-terminal ATP-binding pocket of Hsp90. Optimized structure-based virtual screening predicted candidate molecules, which was followed by confirmation using biophysical and cell-based assays. Among the reported crystal structures, we chose the two structures that show the most favourable early enrichments of true-positives in the receiver operating characteristic curve. Four molecules showed significant changes in the signals of 2D [1H, 15N] correlation NMR spectroscopy. Differential scanning calorimetry analysis supported the results indicating direct binding. Quantified dissociation constant values of the molecules, determined by a series of 2D NMR experiments, lie in the range of 0.1-33 MUM. Growth inhibition assay with breast and lung cancer cells confirmed the cellular activities of the molecules. Cheminformatics revealed that the molecules share limited chemical similarities with known inhibitors. Molecular dynamics simulations detailed the putative binding modes of the inhibitors. PMID- 29321507 TI - Multifunctional Device based on phosphor-piezoelectric PZT: lighting, speaking, and mechanical energy harvesting. AB - We demonstrated the tri-functional device based on all powder-processing methods by using ZnS powder as phosphor layer and piezoelectric material as dielectric layer. The fabricated device generated the electroluminescent (EL) light from phosphor and the sound from piezoelectric sheet under a supply of external electric power, and additionally harvested the reverse-piezoelectric energy to be converted into EL light. Under sinusoidal applied voltage, EL luminances were exponentially increased with a maximum luminous efficiency of 1.3 lm/W at 40 V and 1,000 Hz, and sound pressure levels (SPLs) were linearly increased. The EL luminances were linearly dependent on applied frequency while the SPLs showed the parabolic increase behavior below 1,000 Hz and then the flat response. The temperature dependence on EL luminances and SPLs was demonstrated; the former was drastically increased and the latter was slightly decreased with the increase of temperature. Finally, as an energy harvesting application, the piezoelectric induced electroluminescence effect was demonstrated by applying only mechanical pressure to the device without any external electric power. PMID- 29321506 TI - Interference of chemical defence and sexual communication can shape the evolution of chemical signals. AB - According to current evolutionary theory, insect pheromones can originate from extant precursor compounds being selected for information transfer. This is exemplified by females of the parasitoid wasp Leptopilina heterotoma whose defensive secretion consisting mainly of (-)-iridomyrmecin has evolved secondary functions as cue to avoid other females during host search and as female sex pheromone. To promote our understanding of pheromone evolution from defensive secretions we studied the chemical ecology of Leptopilina clavipes. We show here that L. clavipes also produces a defensive secretion that contains (-) iridomyrmecin as major component and that females use it to detect and avoid host patches occupied by other females. However, the female sex pheromone of L. clavipes consists solely of cuticular hydrocarbons (CHCs) and males did not respond to female CHCs if presented in combination with the defensive secretion containing (-)-iridomyrmecin. This is in contrast to other species of Leptopilina, in which the iridoid compounds have no inhibiting effect or even function as sex pheromone triggering courtship behaviour. This indicates that Leptopilina species differ in the cost-benefit ratio for males searching for females, which might explain the strong divergence in the composition of the sex pheromone in the genus. PMID- 29321505 TI - Highly selective and sensitive macrocycle-based dinuclear foldamer for fluorometric and colorimetric sensing of citrate in water. AB - The selective detection of citrate anions is essential for various biological functions in living systems. A quantitative assessment of citrate is required for the diagnosis of various diseases in the human body; however, it is extremely challenging to develop efficient fluorescence and color-detecting molecular probes for sensing citrate in water. Herein, we report a macrocycle-based dinuclear foldamer (1) assembled with eosin Y (EY) that has been studied for anion binding by fluorescence and colorimetric techniques in water at neutral pH. Results from the fluorescence titrations reveal that the 1.EY ensemble strongly binds citrate anions, showing remarkable selectivity over a wide range of inorganic and carboxylate anions. The addition of citrate anions to the 1.EY adduct led to a large fluorescence enhancement, displaying a detectable color change under both visible and UV light in water up to 2 MUmol. The biocompatibility of 1.EY as an intracellular carrier in a biological system was evaluated on primary human foreskin fibroblast (HF) cells, showing an excellent cell viability. The strong binding properties of the ensemble allow it to be used as a highly sensitive, detective probe for biologically relevant citrate anions in various applications. PMID- 29321508 TI - Thrombospondin-1 secreted by human umbilical cord blood-derived mesenchymal stem cells rescues neurons from synaptic dysfunction in Alzheimer's disease model. AB - Alzheimer's disease (AD) is an incurable neurodegenerative disease characterised clinically by learning and memory impairments. Amyloid beta (Abeta) peptide induced synaptic dysfunction is a pathological process associated with early stage AD. Here, we show that paracrine action of human umbilical cord blood derived-mesenchymal stem cells (hUCB-MSCs) protects the hippocampus from synaptic density loss in in vitro and in vivo AD models. To identify paracrine factors underlying this rescue effect, we analysed hUCB-MSCs' secretome co-cultured with Abeta42-treated mouse hippocampal neurons. Thrombospondin-1 (TSP-1), a protein secreted by hUCB-MSCs in in vitro and 5XFAD AD mouse models, was selected for study. Treatment with exogenous recombinant TSP-1 or co-cultures with hUCB-MSCs significantly increased expression of synaptic-density markers, such as synaptophysin (SYP) and post-synaptic density protein-95 (PSD-95) in Abeta42 treated mouse hippocampal neurons. Knockdown of TSP-1 expression in hUCB-MSCs through small interfering RNA (siRNA) abolished the reversal of Abeta42-induced hippocampal synaptic-density loss. We demonstrate that the rescue effect of hUCB MSC-secreted TSP-1 was mediated by neuroligin-1 (NLGN1) or alpha2delta-1 receptors. Interestingly, NLGN1 and alpha2delta-1 expression, which was reduced in Abeta42-treated hippocampal neurons, increased in co-cultures with hUCB-MSCs or exogenous TSP-1. Together, these findings suggest that hUCB-MSCs can attenuate Abeta42-induced synaptic dysfunction by regulating TSP-1 release, thus providing a potential alternative therapeutic option for early-stage AD. PMID- 29321509 TI - Novel haemodialysis (HD) treatment employing molecular hydrogen (H2)-enriched dialysis solution improves prognosis of chronic dialysis patients: A prospective observational study. AB - Recent studies have revealed unique biological characteristics of molecular hydrogen (H2) as an anti-inflammatory agent. We developed a novel haemodialysis (E-HD) system delivering an H2 (30-80 ppb)-enriched dialysis solution by water electrolysis, and conducted a non-randomized, non-blinded, prospective observational study exploring its clinical impact. Prevalent chronic HD patients were allocated to either the E-HD (n = 161) group or the conventional HD (C-HD: n = 148) group, and received the respective HD treatments during the study. The primary endpoint was a composite of all-cause mortality and development of non lethal cardio-cerebrovascular events (cardiac disease, apoplexy, and leg amputation due to peripheral artery disease). During the 3.28-year mean observation period, there were no differences in dialysis parameters between the two groups; however, post-dialysis hypertension was ameliorated with significant reductions in antihypertensive agents in the E-HD patients. There were 91 events (50 in the C-HD group and 41 in the E-HD group). Multivariate analysis of the Cox proportional hazards model revealed E-HD as an independent significant factor for the primary endpoint (hazard ratio 0.59; [95% confidence interval: 0.38-0.92]) after adjusting for confounding factors (age, cardiovascular disease history, serum albumin, and C-reactive protein). HD applying an H2-dissolved HD solution could improve the prognosis of chronic HD patients. PMID- 29321510 TI - A model of human lung fibrogenesis for the assessment of anti-fibrotic strategies in idiopathic pulmonary fibrosis. AB - Idiopathic pulmonary fibrosis (IPF) is a progressive interstitial lung disease with limited therapeutic options. KCa3.1 ion channels play a critical role in TGFbeta1-dependent pro-fibrotic responses in human lung myofibroblasts. We aimed to develop a human lung parenchymal model of fibrogenesis and test the efficacy of the selective KCa3.1 blocker senicapoc. 2 mm3 pieces of human lung parenchyma were cultured for 7 days in DMEM +/- TGFbeta1 (10 ng/ml) and pro-fibrotic pathways examined by RT-PCR, immunohistochemistry and collagen secretion. Following 7 days of culture with TGFbeta1, 41 IPF- and fibrosis-associated genes were significantly upregulated. Immunohistochemical staining demonstrated increased expression of ECM proteins and fibroblast-specific protein after TGFbeta1-stimulation. Collagen secretion was significantly increased following TGFbeta1-stimulation. These pro-fibrotic responses were attenuated by senicapoc, but not by dexamethasone. This 7 day ex vivo model of human lung fibrogenesis recapitulates pro-fibrotic events evident in IPF and is sensitive to KCa3.1 channel inhibition. By maintaining the complex cell-cell and cell-matrix interactions of human tissue, and removing cross-species heterogeneity, this model may better predict drug efficacy in clinical trials and accelerate drug development in IPF. KCa3.1 channels are a promising target for the treatment of IPF. PMID- 29321511 TI - Enhancing vestibular function in the elderly with imperceptible electrical stimulation. AB - Age-related loss of vestibular function can result in decrements in gaze stabilization and increased fall risk in the elderly. This study was designed to see if low levels of electrical stochastic noise applied transcutaneously to the vestibular system can improve a gaze stabilization reflex in young and elderly subject groups. Ocular counter-rolling (OCR) using a video-based technique was obtained in 16 subjects during low frequency passive roll tilts. Consistent with previous studies, there was a significant reduction in OCR gains in the elderly compared to the young group. Imperceptible stochastic noise significantly increased OCR in the elderly (Mean 23%, CI: 17-35%). Increases in OCR gain were greatest for those with lowest baseline gain and were negligible in those with normal gain. Since stimulation was effective at low levels undetectable to subjects, stochastic noise may provide a new treatment alternative to enhance vestibular function, specifically otolith-ocular reflexes, in the elderly or patient populations with reduced otolith-ocular function. PMID- 29321512 TI - Phenotypic responses to interspecies competition and commensalism in a naturally derived microbial co-culture. AB - The fundamental question of whether different microbial species will co-exist or compete in a given environment depends on context, composition and environmental constraints. Model microbial systems can yield some general principles related to this question. In this study we employed a naturally occurring co-culture composed of heterotrophic bacteria, Halomonas sp. HL-48 and Marinobacter sp. HL 58, to ask two fundamental scientific questions: 1) how do the phenotypes of two naturally co-existing species respond to partnership as compared to axenic growth? and 2) how do growth and molecular phenotypes of these species change with respect to competitive and commensal interactions? We hypothesized - and confirmed - that co-cultivation under glucose as the sole carbon source would result in competitive interactions. Similarly, when glucose was swapped with xylose, the interactions became commensal because Marinobacter HL-58 was supported by metabolites derived from Halomonas HL-48. Each species responded to partnership by changing both its growth and molecular phenotype as assayed via batch growth kinetics and global transcriptomics. These phenotypic responses depended on nutrient availability and so the environment ultimately controlled how they responded to each other. This simplified model community revealed that microbial interactions are context-specific and different environmental conditions dictate how interspecies partnerships will unfold. PMID- 29321513 TI - Tousled-like kinase 1 is a negative regulator of core transcription factors in murine embryonic stem cells. AB - Although the differentiation of pluripotent cells in embryonic stem cells (ESCs) is often associated with protein kinase-mediated signaling pathways and Tousled like kinase 1 (Tlk1) is required for development in several species, the role of Tlk1 in ESC function remains unclear. Here, we used mouse ESCs to study the function of Tlk1 in pluripotent cells. The knockdown (KD)-based Tlk1-deficient cells showed that Tlk1 is not essential for ESC self-renewal in an undifferentiated state. However, Tlk1-KD cells formed irregularly shaped embryoid bodies and induced resistance to differentiation cues, indicating their failure to differentiate into an embryoid body. Consistent with their failure to differentiate, Tlk1-KD cells failed to downregulate the expression of undifferentiated cell markers including Oct4, Nanog, and Sox2 during differentiation, suggesting a negative role of Tlk1. Interestingly, Tlk1 overexpression sufficiently downregulated the expression of core pluripotency factors possibly irrespective of its kinase activity, thereby leading to a partial loss of self-renewal ability even in an undifferentiated state. Moreover, Tlk1 overexpression caused severe growth defects and G2/M phase arrest as well as apoptosis. Collectively, our data suggest that Tlk1 negatively regulates the expression of pluripotency factors, thereby contributing to the scheduled differentiation of mouse ESCs. PMID- 29321515 TI - Nationwide survey on cerebrotendinous xanthomatosis in Japan. AB - Cerebrotendinous xanthomatosis (CTX) is likely to be underdiagnosed and precise epidemiological characteristics of CTX are largely unknown as knowledge on the disorder is based mainly on case reports. We conducted a nationwide survey on CTX to elucidate the frequency, clinical picture, and molecular biological background of Japanese CTX patients. In this first Japanese nationwide survey on CTX, 2541 questionnaires were sent to clinical departments across Japan. A total of 1032 (40.6%) responses were returned completed for further analysis. Forty patients with CTX (50.0% male) were identified between September 2012 and August 2015. The mean age of onset was 24.5 +/- 13.6 years, mean age at diagnosis was 41.0 +/- 11.6 years, and corresponding mean duration of illness from onset to diagnosis was 16.5 +/- 13.5 years. The most common initial symptom was tendon xanthoma, followed next by spastic paraplegia, cognitive dysfunction, cataract, ataxia, and epilepsy. The most predominant mutations in the CYP27A1 gene were c.1214G> A (p.R405Q, 31.6%), c.1421G> A (p.R474Q, 26.3%), and c.435G> T (p.G145=, 15.8%). Therapeutic interventions that included chenodeoxycholic acid, HMG-CoA reductase inhibitor, and LDL apheresis reduced serum cholestanol level in all patients and improved clinical symptoms in 40.5% of patients. Although CTX is a treatable neurodegenerative disorder, our nationwide survey revealed an average 16.5-year diagnostic delay. CTX may be underdiagnosed in Japan, especially during childhood. Early diagnosis and treatment are essential to improve the prognosis of CTX. PMID- 29321514 TI - Flavin Reductase Contributes to Pneumococcal Virulence by Protecting from Oxidative Stress and Mediating Adhesion and Elicits Protection Against Pneumococcal Challenge. AB - Pneumococcal flavin reductase (FlaR) is known to be cell-wall associated and possess age dependent antigenicity in children. This study aimed at characterizing FlaR and elucidating its involvement in pneumococcal physiology and virulence. Bioinformatic analysis of FlaR sequence identified three-conserved cysteine residues, suggesting a transition metal-binding capacity. Recombinant FlaR (rFlaR) bound Fe2+ and exhibited FAD-dependent NADP-reductase activity, which increased in the presence of cysteine or excess Fe2+ and inhibited by divalent-chelating agents. flaR mutant was highly susceptible to H2O2 compared to its wild type (WT) and complemented strains, suggesting a role for FlaR in pneumococcal oxidative stress resistance. Additionally, flaR mutant demonstrated significantly decreased mice mortality following intraperitoneal infection. Interestingly, lack of FlaR did not affect the extent of phagocytosis by primary mouse peritoneal macrophages but reduced adhesion to A549 cells compared to the WT and complemented strains. Noteworthy are the findings that immunization with rFlaR elicited protection in mice against intraperitoneal lethal challenge and anti-FlaR antisera neutralized bacterial virulence. Taken together, FlaR's roles in pneumococcal physiology and virulence, combined with its lack of significant homology to human proteins, point towards rFlaR as a vaccine candidate. PMID- 29321516 TI - Clinical and mutational spectrum of Japanese patients with recessive variants in SH3TC2. AB - SH3TC2, known as the causative gene of autosomal recessive demyelinating Charcot Marie-Tooth type 4C (CMT4C), was also found linked to a mild mononeuropathy of the median nerve with an autosomal dominant inheritance pattern. Using DNA microarray, Illumina MiSeq, and Ion proton, we carried out gene panel sequencing among 1483 Japanese CMT patients, containing 397 patients with demyelinating CMT. From seven patients with demyelinating CMT, we identified eight recessive variants in the SH3TC2 gene, consisting of five novel (pathogenic/likely pathogenic) and three reported variants. Additionally, from two patients with axonal CMT, we detected a reported recessive variant, p.Arg77Trp, which was herein reclassified as variant with unknown significance. Of the seven CMT4C patients (six females and one male), 2/7 patients developed symptoms at their first decade, and 5/7 patients lost their ambulation around age 50. Scoliosis was observed from more than half (4/7) of these patients, whereas hearing loss is the most common symptom of central nervous system (6/7). No median nerve mononeuropathy was recorded from their family members. We identified recessive variants in SH3TC2 from 1.76% of demyelinating CMT patients. An uncommon gender difference was recognized and the wild spectrum of these variants suggests mutational diversity of SH3TC2 in Japan. PMID- 29321517 TI - Genome-wide association study of homocysteine in African Americans from the Jackson Heart Study, the Multi-Ethnic Study of Atherosclerosis, and the Coronary Artery Risk in Young Adults study. AB - Homocysteine (Hcy) is a heritable biomarker for CVD, peripheral artery disease, stroke, and dementia. Little is known about genetic associations with Hcy in individuals of African ancestry. We performed a genome-wide association study for Hcy in 4927 AAs from the Jackson Heart Study (JHS), the Multi-Ethnic Study of Atherosclerosis (MESA), and the Coronary Artery Risk in Young Adults (CARDIA) study. Analyses were stratified by sex and results were meta-analyzed within and across sex. In the sex-combined meta-analysis, we observed genome-wide significant evidence (p < 5.0 * 10-8) for the NOX4 locus (lead variant rs2289125, beta = -0.15, p = 5.3 * 1011). While the NOX4 locus was previously reported as associated with Hcy in European-American populations, rs2289125 remained genome wide significant when conditioned on the previously reported lead variants. Previously reported genome-wide significant associations at NOX4, MTR, CBS, and MMACHC were also nominally (p < 0.050) replicated in AAs. Associations at the CPS1 locus, previously reported in females only, also was replicated specifically in females in this analysis, supporting sex-specific effects for this locus. These results suggest that there may be a combination of cross-population and population-specific genetic effects, as well as differences in genetic effects between males and females, in the regulation of Hcy levels. PMID- 29321518 TI - Mediation analysis of alcohol consumption, DNA methylation, and epithelial ovarian cancer. AB - Epigenetic factors and consumption of alcohol, which suppresses DNA methylation, may influence the development and progression of epithelial ovarian cancer (EOC). However, there is a lack of understanding whether these factors interact to affect the EOC risk. In this study, we aimed to gain insight into this relationship by identifying leukocyte-derived DNA methylation markers acting as potential mediators of alcohol-associated EOC. We implemented a causal inference test (CIT) and the VanderWeele and Vansteelandt multiple mediator model to examine CpG sites that mediate the association between alcohol consumption and EOC risk. We modified one step of the CIT by adopting a high-dimensional inference procedure. The data were based on 196 cases and 202 age-matched controls from the Mayo Clinic Ovarian Cancer Case-Control Study. Implementation of the CIT test revealed two CpG sites (cg09358725, cg11016563), which represent potential mediators of the relationship between alcohol consumption and EOC case control status. Implementation of the VanderWeele and Vansteelandt multiple mediator model further revealed that these two CpGs were the key mediators. Decreased methylation at both CpGs was more common in cases who drank alcohol at the time of enrollment vs. those who did not. cg11016563 resides in TRPC6 which has been previously shown to be overexpressed in EOC. These findings suggest two CpGs may serve as novel biomarkers for EOC susceptibility. PMID- 29321519 TI - Maturation of the gut microbiome and risk of asthma in childhood. AB - The composition of the human gut microbiome matures within the first years of life. It has been hypothesized that microbial compositions in this period can cause immune dysregulations and potentially cause asthma. Here we show, by associating gut microbial composition from 16S rRNA gene amplicon sequencing during the first year of life with subsequent risk of asthma in 690 participants, that 1-year-old children with an immature microbial composition have an increased risk of asthma at age 5 years. This association is only apparent among children born to asthmatic mothers, suggesting that lacking microbial stimulation during the first year of life can trigger their inherited asthma risk. Conversely, adequate maturation of the gut microbiome in this period may protect these pre disposed children. PMID- 29321521 TI - Coherence measure in terms of the Tsallis relative alpha entropy. AB - Coherence is the most fundamental quantum feature of the nonclassical systems. The understanding of coherence within the resource theory has been attracting increasing interest among which the quantification of coherence is an essential ingredient. A satisfactory measure should meet certain standard criteria. It seems that the most crucial criterion should be the strong monotonicity, that is, average coherence doesn't increase under the (sub-selective) incoherent operations. Recently, the Tsallis relative alpha entropy has been tried to quantify the coherence. But it was shown to violate the strong monotonicity, even though it can unambiguously distinguish the coherent and the incoherent states with the monotonicity. Here we establish a family of coherence quantifiers which are closely related to the Tsallis relative alpha entropy. It proves that this family of quantifiers satisfy all the standard criteria and particularly cover several typical coherence measures. PMID- 29321520 TI - Essential thrombocythemia treatment algorithm 2018. AB - Current drug therapy for myeloproliferative neoplasms, including essential thrombocythemia (ET) and polycythemia vera (PV), is neither curative nor has it been shown to prolong survival. Fortunately, prognosis in ET and PV is relatively good, with median survivals in younger patients estimated at 33 and 24 years, respectively. Therefore, when it comes to treatment in ET or PV, less is more and one should avoid exposing patients to new drugs that have not been shown to be disease-modifying, and whose long-term consequences are suspect (e.g., ruxolitinib). Furthermore, the main indication for treatment in ET and PV is to prevent thrombosis and, in that regard, none of the newer drugs have been shown to be superior to the time-tested older drugs (e.g., hydroxyurea). We currently consider three major risk factors for thrombosis (history of thrombosis, JAK2/MPL mutations, and advanced age), in order to group ET patients into four risk categories: "very low risk" (absence of all three risk factors); "low risk" (presence of JAK2/MPL mutations); "intermediate-risk" (presence of advanced age); and "high-risk" (presence of thrombosis history or presence of both JAK2/MPL mutations and advanced age). Herein, we provide a point-of-care treatment algorithm that is risk-adapted and based on evidence and decades of experience. PMID- 29321522 TI - Accelerated proteomic visualization of individual predatory venoms of Conus purpurascens reveals separately evolved predation-evoked venom cabals. AB - Cone snail venoms have separately evolved for predation and defense. Despite remarkable inter- and intra-species variability, defined sets of synergistic venom peptides (cabals) are considered essential for prey capture by cone snails. To better understand the role of predatory cabals in cone snails, we used a high throughput proteomic data mining and visualisation approach. Using this approach, the relationship between the predatory venom peptides from nine C. purpurascens was systematically analysed. Surprisingly, potentially synergistic levels of kappa-PVIIA and delta-PVIA were only identified in five of nine specimens. In contrast, the remaining four specimens lacked significant levels of these known excitotoxins and instead contained high levels of the muscle nAChR blockers psi PIIIE and alphaA-PIVA. Interestingly, one of nine specimens expressed both cabals, suggesting that these sub-groups might represent inter-breeding sub species of C. purpurascens. High throughput cluster analysis also revealed these two cabals clustered with distinct groups of venom peptides that are presently uncharacterised. This is the first report showing that the cone snails of the same species can deploy two separate and distinct predatory cabals for prey capture and shows that the cabals deployed by this species can be more complex than presently realized. Our semi-automated proteomic analysis facilitates the deconvolution of complex venoms to identify co-evolved families of peptides and help unravel their evolutionary relationships in complex venoms. PMID- 29321524 TI - Phenotypic divergence despite low genetic differentiation in house sparrow populations. AB - Studying patterns of phenotypic variation among populations can shed light on the drivers of evolutionary processes. The house sparrow (Passer domesticus) is one of the world's most ubiquitous bird species, as well as a successful invader. We investigated phenotypic variation in house sparrow populations across a climatic gradient and in relation to a possible scenario of an invasion. We measured variation in morphological, coloration, and behavioral traits (exploratory behavior and neophobia) and compared it to the neutral genetic variation. We found that sparrows were larger and darker in northern latitudes, in accordance with Bergmann's and Gloger's biogeographic rules. Morphology and behavior mostly differed between the southernmost populations and the other regions, supporting the possibility of an invasion. Genetic differentiation was low and diversity levels were similar across populations, indicating high gene flow. Nevertheless, the southernmost and northern populations differed genetically to some extent. Furthermore, genetic differentiation (F ST) was lower in comparison to phenotypic variation (P ST), indicating that the phenotypic variation is shaped by directional selection or by phenotypic plasticity. This study expands our knowledge on evolutionary mechanisms and biological invasions. PMID- 29321525 TI - Exploring the consequences of social defeat stress and intermittent ethanol drinking on dopamine dynamics in the rat nucleus accumbens. AB - The current study aimed to explore how presynaptic dopamine (DA) function is altered following brief stress episodes and chronic ethanol self-administration and whether these neuroadaptations modify the acute effects of ethanol on DA dynamics. We used fast-scan cyclic voltammetry to evaluate changes in DA release and uptake parameters in rat nucleus accumbens brain slices by analyzing DA transients evoked through single pulse electrical stimulation. Adult male rats were divided into four groups: ethanol-naive or ethanol drinking (six week intermittent two-bottle choice) and stressed (mild social defeat) or nonstressed. Results revealed that the mild stress significantly increased DA release and uptake in ethanol-naive subjects, compared to nonstressed controls. Chronic ethanol self-administration increased the DA uptake rate and occluded the effects of stress on DA release dynamics. Bath-applied ethanol decreased stimulated DA efflux in a concentration-dependent manner in all groups; however, the magnitude of this effect was blunted by either stress or chronic ethanol, or by a combination of both procedures. Together, these findings suggest that stress and ethanol drinking may promote similar adaptive changes in accumbal presynaptic DA release measures and that these changes may contribute to the escalation in ethanol intake that occurs during the development of alcohol use disorder. PMID- 29321523 TI - Integrative genomic and transcriptomic analysis of leiomyosarcoma. AB - Leiomyosarcoma (LMS) is an aggressive mesenchymal malignancy with few therapeutic options. The mechanisms underlying LMS development, including clinically actionable genetic vulnerabilities, are largely unknown. Here we show, using whole-exome and transcriptome sequencing, that LMS tumors are characterized by substantial mutational heterogeneity, near-universal inactivation of TP53 and RB1, widespread DNA copy number alterations including chromothripsis, and frequent whole-genome duplication. Furthermore, we detect alternative telomere lengthening in 78% of cases and identify recurrent alterations in telomere maintenance genes such as ATRX, RBL2, and SP100, providing insight into the genetic basis of this mechanism. Finally, most tumors display hallmarks of "BRCAness", including alterations in homologous recombination DNA repair genes, multiple structural rearrangements, and enrichment of specific mutational signatures, and cultured LMS cells are sensitive towards olaparib and cisplatin. This comprehensive study of LMS genomics has uncovered key biological features that may inform future experimental research and enable the design of novel therapies. PMID- 29321526 TI - The chemical armament of reef-building corals: inter- and intra-specific variation and the identification of an unusual actinoporin in Stylophora pistilata. AB - Corals, like other cnidarians, are venomous animals that rely on stinging cells (nematocytes) and their toxins to catch prey and defend themselves against predators. However, little is known about the chemical arsenal employed by stony corals, despite their ecological importance. Here, we show large differences in the density of nematocysts and whole-body hemolytic activity between different species of reef-building corals. In the branched coral Stylophora pistillata, the tips of the branches exhibited a greater hemolytic activity than the bases. Hemolytic activity and nematocyst density were significantly lower in Stylophora that were maintained for close to a year in captivity compared to corals collected from the wild. A cysteine-containing actinoporin was identified in Stylophora following partial purification and tandem mass spectrometry. This toxin, named Delta-Pocilopotoxin-Spi1 (Delta-PCTX-Spi1) is the first hemolytic toxin to be partially isolated and characterized in true reef-building corals. Loss of hemolytic activity during chromatography suggests that this actinoporin is only one of potentially several hemolytic molecules. These results suggest that the capacity to employ offensive and defensive chemicals by corals is a dynamic trait within and between coral species, and provide a first step towards identifying the molecular components of the coral chemical armament. PMID- 29321527 TI - A hospital based retrospective study of factors influencing therapeutic leukapheresis in patients presenting with hyperleukocytic leukaemia. AB - Therapeutic leukapheresis is a rapid and effective method to reduce early mortality of patients with hyperleukocytic leukaemia (HLL). However, few studies on factors influencing the efficiency have been reported. In this study, 67 cases who underwent leukapheresis were retrospectively analysed and factors related to the collection efficiency of leukapheresis (CEWBC) were also evaluated. Paired t test showed that there was a significant decrease in statistics of white blood cell (WBC) counts after apheresis. The results of two independent samples nonparametric test suggested that WBC counts, platelet (PLT) counts, haematocrit (HCT), hemoglobin (HGB), serum chlorine (Cl) and globulin (GLB) before leukapheresis correlated with the CEWBC. Multiple linear regression analysis with background stepwise variable selection indicated that only WBC and HCT before leukapheresis had an influence on CEWBC significantly. Kaplan-Meier analysis and Cox regression model indicated that lymphocyte (LY) and mean corpuscular hemoglobin (MCH) pre-apheresis as independent factors significantly affected the prognostic survival of patients with HLL. Moreover, platelets and red blood cell were contaminated in the product of leukapheresis. It is an urgent problem to be solved in order to realise higher efficacy and higher purity of WBC collection to improve the survival of patients with HLL through optimising instruments. PMID- 29321528 TI - Large-scale ocean connectivity and planktonic body size. AB - Global patterns of planktonic diversity are mainly determined by the dispersal of propagules with ocean currents. However, the role that abundance and body size play in determining spatial patterns of diversity remains unclear. Here we analyse spatial community structure - beta-diversity - for several planktonic and nektonic organisms from prokaryotes to small mesopelagic fishes collected during the Malaspina 2010 Expedition. beta-diversity was compared to surface ocean transit times derived from a global circulation model, revealing a significant negative relationship that is stronger than environmental differences. Estimated dispersal scales for different groups show a negative correlation with body size, where less abundant large-bodied communities have significantly shorter dispersal scales and larger species spatial turnover rates than more abundant small-bodied plankton. Our results confirm that the dispersal scale of planktonic and micro nektonic organisms is determined by local abundance, which scales with body size, ultimately setting global spatial patterns of diversity. PMID- 29321529 TI - Multilayer networks reveal the spatial structure of seed-dispersal interactions across the Great Rift landscapes. AB - Species interaction networks are traditionally explored as discrete entities with well-defined spatial borders, an oversimplification likely impairing their applicability. Using a multilayer network approach, explicitly accounting for inter-habitat connectivity, we investigate the spatial structure of seed dispersal networks across the Gorongosa National Park, Mozambique. We show that the overall seed-dispersal network is composed by spatially explicit communities of dispersers spanning across habitats, functionally linking the landscape mosaic. Inter-habitat connectivity determines spatial structure, which cannot be accurately described with standard monolayer approaches either splitting or merging habitats. Multilayer modularity cannot be predicted by null models randomizing either interactions within each habitat or those linking habitats; however, as habitat connectivity increases, random processes become more important for overall structure. The importance of dispersers for the overall network structure is captured by multilayer versatility but not by standard metrics. Highly versatile species disperse many plant species across multiple habitats, being critical to landscape functional cohesion. PMID- 29321530 TI - The effect of raloxifene augmentation in men and women with a schizophrenia spectrum disorder: a systematic review and meta-analysis. AB - Recognizing the robust sex differences in schizophrenia prevalence, the selective estrogen receptor modulator (SERM) raloxifene is a likely candidate for augmentation therapy in this disorder. Therefore, a systematic search was performed using PubMed (Medline), Embase, PsychInfo, and Cochrane Database of Systematic Reviews. Randomized controlled trials investigating the effect of raloxifene in schizophrenia spectrum disorders were included in the quantitative analyses. Outcome measures were psychotic symptom severity, depression, and cognition. Meta-analyses were performed using Comprehensive Meta-Analysis software. A random-effects model was used to compute overall weighted effect sizes in Hedges' g. Nine studies were included, investigating 561 patients with a schizophrenia spectrum disorder. Raloxifene was superior to placebo in improving total symptom severity (N = 482; Hedge's g = .57, p = 0.009), as well as positive (N = 561; Hedge's g = 0.32, p = 0.02), negative (N = 561; Hedge's g = 0.40, p = 0.02), and general (N = 526; Hedge's g = 0.46, p = 0.01) subscales, as measured by the Positive and Negative Syndrome Scale. No significant effects were found for comorbid depression and cognitive functioning. Altogether, these results confirm the potential of raloxifene augmentation in the treatment of schizophrenia. PMID- 29321531 TI - Biopsy Needle Integrated with Electrical Impedance Sensing Microelectrode Array towards Real-time Needle Guidance and Tissue Discrimination. AB - A biopsy needle with electrical impedance sensor array based on stainless steel microelectrodes (EIS needle) was developed for real-time four electrode measurement and multi-spot sensing of tissues during the biopsy process. The sensor performance was characterized by using saline solutions with various concentrations, which proved accurate, stable and reliable electrical impedance measurement. The capability of impedance-based tissue sensing was verified by the conductivity measurement of agarose hydrogel based phantom mimicking cancer tissue. Furthermore, multi-spot impedance sensing during needle insertion was demonstrated using porcine meat with muscle and fat layers, which exhibited a clear discrimination between different types of tissues. Also, the electrical impedance difference between normal and fatty livers of mouse model was measured by the EIS needle. We could successfully demonstrate that the EIS needle can provide localized and accurate characterization of biological tissues at the needle tip. PMID- 29321532 TI - Neural measures of the role of affective prosody in empathy for pain. AB - Emotional communication often needs the integration of affective prosodic and semantic components from speech and the speaker's facial expression. Affective prosody may have a special role by virtue of its dual-nature; pre-verbal on one side and accompanying semantic content on the other. This consideration led us to hypothesize that it could act transversely, encompassing a wide temporal window involving the processing of facial expressions and semantic content expressed by the speaker. This would allow powerful communication in contexts of potential urgency such as witnessing the speaker's physical pain. Seventeen participants were shown with faces preceded by verbal reports of pain. Facial expressions, intelligibility of the semantic content of the report (i.e., participants' mother tongue vs. fictional language) and the affective prosody of the report (neutral vs. painful) were manipulated. We monitored event-related potentials (ERPs) time locked to the onset of the faces as a function of semantic content intelligibility and affective prosody of the verbal reports. We found that affective prosody may interact with facial expressions and semantic content in two successive temporal windows, supporting its role as a transverse communication cue. PMID- 29321533 TI - Increased heart rate after exercise facilitates the processing of fearful but not disgusted faces. AB - Embodied theories of emotion assume that emotional processing is grounded in bodily and affective processes. Accordingly, the perception of an emotion re enacts congruent sensory and affective states; and conversely, bodily states congruent with a specific emotion facilitate emotional processing. This study tests whether the ability to process facial expressions (faces having a neutral expression, expressing fear, or disgust) can be influenced by making the participants' body state congruent with the expressed emotion (e.g., high heart rate in the case of faces expressing fear). We designed a task requiring participants to categorize pictures of male and female faces that either had a neutral expression (neutral), or expressed emotions whose linkage with high heart rate is strong (fear) or significantly weaker or absent (disgust). Critically, participants were tested in two conditions: with experimentally induced high heart rate (Exercise) and with normal heart rate (Normal). Participants processed fearful faces (but not disgusted or neutral faces) faster when they were in the Exercise condition than in the Normal condition. These results support the idea that an emotionally congruent body state facilitates the automatic processing of emotionally-charged stimuli and this effect is emotion-specific rather than due to generic factors such as arousal. PMID- 29321534 TI - Mitochondrial network complexity emerges from fission/fusion dynamics. AB - Mitochondrial networks exhibit a variety of complex behaviors, including coordinated cell-wide oscillations of energy states as well as a phase transition (depolarization) in response to oxidative stress. Since functional and structural properties are often interwinded, here we characterized the structure of mitochondrial networks in mouse embryonic fibroblasts using network tools and percolation theory. Subsequently we perturbed the system either by promoting the fusion of mitochondrial segments or by inducing mitochondrial fission. Quantitative analysis of mitochondrial clusters revealed that structural parameters of healthy mitochondria laid in between the extremes of highly fragmented and completely fusioned networks. We confirmed our results by contrasting our empirical findings with the predictions of a recently described computational model of mitochondrial network emergence based on fission-fusion kinetics. Altogether these results offer not only an objective methodology to parametrize the complexity of this organelle but also support the idea that mitochondrial networks behave as critical systems and undergo structural phase transitions. PMID- 29321535 TI - Multi-label Deep Learning for Gene Function Annotation in Cancer Pathways. AB - The war on cancer is progressing globally but slowly as researchers around the world continue to seek and discover more innovative and effective ways of curing this catastrophic disease. Organizing biological information, representing it, and making it accessible, or biocuration, is an important aspect of biomedical research and discovery. However, because maintaining sophisticated biocuration is highly resource dependent, it continues to lag behind the continually being generated biomedical data. Another critical aspect of cancer research, pathway analysis, has proven to be an efficient method for gaining insight into the underlying biology associated with cancer. We propose a deep-learning-based model, Stacked Denoising Autoencoder Multi-Label Learning (SdaMLL), for facilitating gene multi-function discovery and pathway completion. SdaMLL can capture intermediate representations robust to partial corruption of the input pattern and generate low-dimensional codes superior to conditional dimension reduction tools. Experimental results indicate that SdaMLL outperforms existing classical multi-label algorithms. Moreover, we found some gene functions, such as Fused in Sarcoma (FUS, which may be part of transcriptional misregulation in cancer) and p27 (which we expect will become a member viral carcinogenesis), that can be used to complete the related pathways. We provide a visual tool ( https://www.keaml.cn/gpvisual ) to view the new gene functions in cancer pathways. PMID- 29321536 TI - Enzymes of the one-carbon folate metabolism as anticancer targets predicted by survival rate analysis. AB - The significance of mitochondrial metabolism in cancer cells has recently been gaining attention. Among other findings, One-carbon folate metabolism has been reported to be closely associated with cellular characteristics in cancer. To study molecular targets for efficient cancer therapy, we investigated the association between the expressions of genes that code enzymes involved in one carbon metabolism and survival rate of patients with adenocarcinomas of the colorectum and lung. Patients with high expression of genes that control the metabolic cycle of tetrahydrofolate (THF) in mitochondria, SHMT2, MTHFD2, and ALDH1L2, have a shorter overall survival rate compared with patients with low expression of these genes. Our results revealed that these genes could be novel and more promising anticancer targets than dihydrofolate reductase (DHFR), the current target of drug therapy linked with folate metabolism, suggesting the rationale of drug discovery in cancer medicine. PMID- 29321537 TI - Computational Investigation of Environment-Noise Interaction in Single-Cell Organisms: The Merit of Expression Stochasticity Depends on the Quality of Environmental Fluctuations. AB - Organisms need to adapt to changing environments and they do so by using a broad spectrum of strategies. These strategies include finding the right balance between expressing genes before or when they are needed, and adjusting the degree of noise inherent in gene expression. We investigated the interplay between different nutritional environments and the inhabiting organisms' metabolic and genetic adaptations by applying an evolutionary algorithm to an agent-based model of a concise bacterial metabolism. Our results show that constant environments and rapidly fluctuating environments produce similar adaptations in the organisms, making the predictability of the environment a major factor in determining optimal adaptation. We show that exploitation of expression noise occurs only in some types of fluctuating environment and is strongly dependent on the quality and availability of nutrients: stochasticity is generally detrimental in fluctuating environments and beneficial only at equal periods of nutrient availability and above a threshold environmental richness. Moreover, depending on the availability and nutritional value of nutrients, nutrient-dependent and stochastic expression are both strategies used to deal with environmental changes. Overall, we comprehensively characterize the interplay between the quality and periodicity of an environment and the resulting optimal deterministic and stochastic regulation strategies of nutrient-catabolizing pathways. PMID- 29321539 TI - Phonon laser in the coupled vector cavity optomechanics. AB - We presented a method to control the intensity of a phonon-laser mode (the vibrational excitations of a mechanical mode) by adjusting the polarization of the pump light based on the experimentally achievable parameters, which provides an additional degree of freedom to control the phonon laser action. Due to orthogonally polarized modes of cavity, the polarization behavior of light field which describes it's vector nature is introduced to control phonon laser action in our scheme. Compared with the traditional phonon laser scheme, polarization related phonon laser in the coupled vector cavity optomechanics can be effectively controlled without changing other parameters of the device. This result provides an useful approach for acquiring polarization-related phonon laser by on-chip optical device. PMID- 29321540 TI - Wide Band Low Noise Love Wave Magnetic Field Sensor System. AB - We present a comprehensive study of a magnetic sensor system that benefits from a new technique to substantially increase the magnetoelastic coupling of surface acoustic waves (SAW). The device uses shear horizontal acoustic surface waves that are guided by a fused silica layer with an amorphous magnetostrictive FeCoSiB thin film on top. The velocity of these so-called Love waves follows the magnetoelastically-induced changes of the shear modulus according to the magnetic field present. The SAW sensor is operated in a delay line configuration at approximately 150 MHz and translates the magnetic field to a time delay and a related phase shift. The fundamentals of this sensor concept are motivated by magnetic and mechanical simulations. They are experimentally verified using customized low-noise readout electronics. With an extremely low magnetic noise level of ~100 pT/[Formula: see text], a bandwidth of 50 kHz and a dynamic range of 120 dB, this magnetic field sensor system shows outstanding characteristics. A range of additional measures to further increase the sensitivity are investigated with simulations. PMID- 29321538 TI - Sweep Dynamics (SD) plots: Computational identification of selective sweeps to monitor the adaptation of influenza A viruses. AB - Monitoring changes in influenza A virus genomes is crucial to understand its rapid evolution and adaptation to changing conditions e.g. establishment within novel host species. Selective sweeps represent a rapid mode of adaptation and are typically observed in human influenza A viruses. We describe Sweep Dynamics (SD) plots, a computational method combining phylogenetic algorithms with statistical techniques to characterize the molecular adaptation of rapidly evolving viruses from longitudinal sequence data. SD plots facilitate the identification of selective sweeps, the time periods in which these occurred and associated changes providing a selective advantage to the virus. We studied the past genome-wide adaptation of the 2009 pandemic H1N1 influenza A (pH1N1) and seasonal H3N2 influenza A (sH3N2) viruses. The pH1N1 influenza virus showed simultaneous amino acid changes in various proteins, particularly in seasons of high pH1N1 activity. Partially, these changes resulted in functional alterations facilitating sustained human-to-human transmission. In the evolution of sH3N2 influenza viruses, we detected changes characterizing vaccine strains, which were occasionally revealed in selective sweeps one season prior to the WHO recommendation. Taken together, SD plots allow monitoring and characterizing the adaptive evolution of influenza A viruses by identifying selective sweeps and their associated signatures. PMID- 29321541 TI - Identification and validation of an 18-gene signature highly-predictive of bladder cancer metastasis. AB - We found two deviant groups that were unpredictable with clinical models predicting bladder cancer metastasis. The group G consists of patients at high risk of pN+ , but they have pN0. The group P consists of patients at low risk of pN+ , but they have pN+ . We aimed to determine the genetic differences between these two groups. 1603 patients from SEER database were enrolled to build a multivariate model. This model was applied to patients from the TCGA database to distinguish groups G and P. Differentially expressed genes between the two groups were identified. RT-qPCR was used to validate the results in a cohort from FUSCC. Two deviant groups were identified both in the SEER population and the TCGA population. Expression of 183 genes was significantly different between the two groups. 18 genes achieved significant statistical power in predicting lymph node metastasis excluding these two deviant groups. The 18-gene signature outperformed 3 other bladder cancer lymph node prediction tools in 2 external GEO datasets. RT qPCR results of our own cohort identified NECTIN2 (P = 0.036) as the only gene that could predict metastasis. Our study showed a novel gene screening method and proposed an 18-gene signature highly predictive of bladder cancer metastasis. PMID- 29321542 TI - Timing of spermarche and menarche among urban students in Guangzhou, China: trends from 2005 to 2012 and association with Obesity. AB - In Guangzhou, China, whether the trend of a decreasing pubertal age has continued in recent years remained unknown, and the association between obesity and early puberty was still controversial. Herein, we conducted a serial cross-sectional study using data from physical fitness surveillance (2005-2012), to determine the recent trends in age at spermarche and menarche among students in Guangzhou, and to investigate whether elevated BMI modified timing of spermarche and menarche. This study included 1,278,258 urban students. In boys, no significant differences were observed in median ages of spermarche (MAS) from 2005 to 2012, with overlapping 95% CIs. Similar results were observed for median ages of menarche (MAM) in girls. The Cox-Stuart trend test showed neither upward nor downward shift in MAS and MAM over time (P = 0.625; 1.000). Each year, both MAS and MAM decreased with increasing BMI. Furthermore, a higher BMI was associated with early age at spermarche and menarche, with ORs of 1.052 (95% CI = 1.045-1.059) and 1.233 (95% CI = 1.220-1.247) in 2012 for boys and girls, respectively. In conclusion, the pubertal timing has been stable in urban students from 2005 to 2012. Furthermore, obesity was associated with early timing of spermarche and menarche. PMID- 29321543 TI - A new, large-bodied omnivorous bat (Noctilionoidea: Mystacinidae) reveals lost morphological and ecological diversity since the Miocene in New Zealand. AB - A new genus and species of fossil bat is described from New Zealand's only pre Pleistocene Cenozoic terrestrial fauna, the early Miocene St Bathans Fauna of Central Otago, South Island. Bayesian total evidence phylogenetic analysis places this new Southern Hemisphere taxon among the burrowing bats (mystacinids) of New Zealand and Australia, although its lower dentition also resembles Africa's endemic sucker-footed bats (myzopodids). As the first new bat genus to be added to New Zealand's fauna in more than 150 years, it provides new insight into the original diversity of chiropterans in Australasia. It also underscores the significant decline in morphological diversity that has taken place in the highly distinctive, semi-terrestrial bat family Mystacinidae since the Miocene. This bat was relatively large, with an estimated body mass of ~40 g, and its dentition suggests it had an omnivorous diet. Its striking dental autapomorphies, including development of a large hypocone, signal a shift of diet compared with other mystacinids, and may provide evidence of an adaptive radiation in feeding strategy in this group of noctilionoid bats. PMID- 29321545 TI - Mathematical model of salt cavern leaching for gas storage in high-insoluble salt formations. AB - A mathematical model is established to predict the salt cavern development during leaching in high-insoluble salt formations. The salt-brine mass transfer rate is introduced, and the effects of the insoluble sediments on the development of the cavern are included. Considering the salt mass conservation in the cavern, the couple equations of the cavern shape, brine concentration and brine velocity are derived. According to the falling and accumulating rules of the insoluble particles, the governing equations of the insoluble sediments are deduced. A computer program using VC++ language is developed to obtain the numerical solution of these equations. To verify the proposed model, the leaching processes of two salt caverns of Jintan underground gas storage are simulated by the program, using the actual geological and technological parameters. The same simulation is performed by the current mainstream leaching software in China. The simulation results of the two programs are compared with the available field data. It shows that the proposed software is more accurate on the shape prediction of the cavern bottom and roof, which demonstrates the reliability and applicability of the model. PMID- 29321544 TI - A Gaussian extension for Diffraction Enhanced Imaging. AB - Unlike conventional x-ray attenuation one of the advantages of phase contrast x ray imaging is its capability of extracting useful physical properties of the sample. In particular the possibility to obtain information from small angle scattering about unresolvable structures with sub-pixel resolution sensitivity has drawn attention for both medical and material science applications. We report on a novel algorithm for the analyzer based x-ray phase contrast imaging modality, which allows the robust separation of absorption, refraction and scattering effects from three measured x-ray images. This analytical approach is based on a simple Gaussian description of the analyzer transmission function and this method is capable of retrieving refraction and small angle scattering angles in the full angular range typical of biological samples. After a validation of the algorithm with a simulation code, which demonstrated the potential of this highly sensitive method, we have applied this theoretical framework to experimental data on a phantom and biological tissues obtained with synchrotron radiation. Owing to its extended angular acceptance range the algorithm allows precise assessment of local scattering distributions at biocompatible radiation doses, which in turn might yield a quantitative characterization tool with sufficient structural sensitivity on a submicron length scale. PMID- 29321546 TI - Tribological Properties of Ultrananocrystalline Diamond Films: Mechanochemical Transformation of Sliding Interfaces. AB - Improving the tribological properties of materials in ambient and high vacuum tribo-conditions is useful for inter-atmospheric applications. Highly hydrogenated and less-hydrogenated ultrananocrystalline diamond (UNCD) films with distinct microstructural characteristics were deposited on Ti-6Al-4 V alloy, by optimizing the plasma conditions in the chemical vapor deposition. Both the UNCD films showed less friction coefficient in ambient atmospheric tribo-contact conditions due to the passivation. This provides chemical stability to UNCD films under the tribo-mechanical stressed conditions which limits the transferlayer formation and conversion of UNCD phase into graphitization/amorphization. However, in the high vacuum tribo-conditions, highly-hydrogenated UNCD films showed low friction value which gradually increased to the higher magnitude at longer sliding cycles. The low friction coefficient was indicative of passivation provided by the hydrogen network intrinsically present in the UNCD films. It gradually desorbs and the dangling bonds are progressively activated in the contact regime, leading to a gradual increase in the friction value. In contrast, less-hydrogenated UNCD films do not exhibit low friction regime in high vacuum conditions due to the lack of internal passivation. In this case, the conversion of UNCD to amorphized carbon structure in the wear tracks and amorphous carbon (a C) tribofilm formation on ball scars were observed. PMID- 29321547 TI - Polycythemia vera treatment algorithm 2018. AB - Recently reported mature survival data have confirmed the favorable prognosis in polycythemia vera (PV), with an estimated median survival of 24 years, in patients younger than age 60 years old. Currently available drugs for PV have not been shown to prolong survival or alter the natural history of the disease and are instead indicated primarily for prevention of thrombosis. Unfortunately, study endpoints that are being utilized in currently ongoing clinical trials in PV do not necessarily target clinically or biologically relevant outcomes, such as thrombosis, survival, or morphologic remission, and are instead focused on components of disease palliation. Even more discouraging has been the lack of critical appraisal from "opinion leaders", on the added value of newly approved drugs. Keeping these issues in mind, at present, we continue to advocate conservative management in low-risk PV (phlebotomy combined with once- or twice daily aspirin therapy) and include cytoreductive therapy in "high-risk" patients; in the latter regard, our first, second, and third line drugs of choice are hydroxyurea, pegylated interferon-alpha and busulfan, respectively. In addition, it is reasonable to consider JAK2 inhibitor therapy, in the presence of protracted pruritus or markedly enlarged splenomegaly shown to be refractory to the aforementioned drugs. PMID- 29321548 TI - Role and mechanism of AT1-AA in the pathogenesis of HELLP syndrome. AB - HELLP syndrome remains a leading cause of maternal and neonatal mortality and morbidity worldwide, which symptoms include hemolysis, elevated liver enzymes and low platelet count. The objective of this study was to determine whether HELLP is associated with AT1-AA. The positive rate and titer of AT1-AA in plasma from pregnant women were determined, and the correlation of AT1-AA titer with the grade of HELLP was analyzed. A HELLP rat model established by intravenous injection of AT1-AA. Our experimental results show the AT1-AA titer and positive rate were significantly higher in HELLP group, and AT1-AA titer were positively correlated with the level of TNF-alpha and ET-1 in plasma and the grade of HELLP syndrome. The results of animal experiments showed that the typical features of HELLP in the pregnant rats after AT1-AA injection. The levels of TNF-alpha and ET 1 in plasma and liver tissue were significantly increased in AT1-AA-treated rats compared with control rats. The HELLP syndrome induced by AT1-AA was attenuated markedly after administration of losartan. These data support the hypothesis that one the potential pathway that AT1-AA induce damage to capillary endothelial cells and liver during pregnancy is through activation of TNF-alpha and ET-1. PMID- 29321549 TI - Probing the molecular basis of hERG drug block with unnatural amino acids. AB - Repolarization of the cardiac action potential is primarily mediated by two voltage-dependent potassium currents: I Kr and I Ks . The voltage-gated potassium channel that gives rise to I Kr, Kv11.1 (hERG), is uniquely susceptible to high affinity block by a wide range of drug classes. Pore residues Tyr652 and Phe656 are critical to potent drug interaction with hERG. It is considered that the molecular basis of this broad-spectrum drug block phenomenon occurs through interactions specific to the aromatic nature of the side chains at Tyr652 and Phe656. In this study, we used nonsense suppression to incorporate singly and doubly fluorinated phenylalanine residues at Tyr652 and Phe656 to assess cation pi interactions in hERG terfenadine, quinidine, and dofetilide block. Incorporation of these unnatural amino acids was achieved with minimal alteration to channel activation or inactivation gating. Our assessment of terfenadine, quinidine, and dofetilide block did not reveal evidence of a cation-pi interaction at either aromatic residue, but, interestingly, shows that certain fluoro-Phe substitutions at position 652 result in weaker drug potency. PMID- 29321550 TI - Evaluating estimated glomerular filtration rates of creatinine and cystatin C for male patients with chronic spinal cord injury. AB - STUDY DESIGN: Retrospective study OBJECTIVES: To compare the accuracy of estimated serum creatinine (Cre)-based glomerular filtration rates (eGFRcre) and serum cystatin C (CysC)-based eGFR (eGFRcys) for determining renal function in patients with spinal cord injury (SCI). SETTING: Department of Urology, Tohoku Rosai Hospital, Japan METHODS: Male patients with SCI for longer than 5 years after injury were eligible for inclusion in this study. eGFRcre and eGFRcys were calculated using the following formulas: eGFRcre = 194 * Cre-1.094 * age-0.287; eGFRcys = (104 * CysC-0.1019 * 0.996age) - 8. The eGFRcre/eGFRcys ratio between 0.8 and 1.2 was considered to be equal, and a relationship between them was investigated. Demographic data, degree of spinal cord damage, management of bladder emptying, post-injury period, and ambulatory status were evaluated. RESULTS: A total of 115 male patients were included. eGFRcre overestimated renal function in 87 (76%) patients with SCI compared with eGFRcys. On univariate analysis, renal function by eGFRcre was overestimated in patients with an eGFRcre of more than 60 ml min-1 per 1.73 m2 (P < 0.001), in non-ambulatory patients (P < 0.001) and, in patients with complete paralysis (P < 0.001). On multivariate analysis, an eGFRcre of more than 60 ml min-1 per 1.73 m2 (P < 0.001), non ambulatory status (P < 0.001), complete paralysis (P = 0.17), and age (P < 0.001) were independent factors for overestimated renal function by eGFRcre. CONCLUSIONS: eGFRcre overestimates renal function compared with eGFRcys. eGFRcys is beneficial, particularly in patients with an eGFRcre of more than 60 ml min-1 per 1.73 m2, in non-ambulatory patients, and in older patients with SCI. PMID- 29321551 TI - Aster leafhopper survival and reproduction, and Aster yellows transmission under static and fluctuating temperatures, using ddPCR for phytoplasma quantification. AB - Aster yellows (AY) is an important disease of Brassica crops and is caused by Candidatus Phytoplasma asteris and transmitted by the insect vector, Aster leafhopper (Macrosteles quadrilineatus). Phytoplasma-infected Aster leafhoppers were incubated at various constant and fluctuating temperatures ranging from 0 to 35 degrees C with the reproductive host plant barley (Hordium vulgare). At 0 degrees C, leafhopper adults survived for 18 days, but failed to reproduce, whereas at 35 degrees C insects died within 18 days, but successfully reproduced before dying. Temperature fluctuation increased thermal tolerance in leafhoppers at 25 degrees C and increased fecundity of leafhoppers at 5 and 20 degrees C. Leafhopper adults successfully infected and produced AY-symptoms in canola plants after incubating for 18 days at 0-20 degrees C on barley, indicating that AY phytoplasma maintains its virulence in this temperature range. The presence and number of AY-phytoplasma in insects and plants were confirmed by droplet digital PCR (ddPCR) quantification. The number of phytoplasma in leafhoppers increased over time, but did not differ among temperatures. The temperatures associated with a typical crop growing season on the Canadian Prairies will not limit the spread of AY disease by their predominant insect vector. Also, ddPCR quantification is a useful tool for early detection and accurate quantification of phytoplasma in plants and insects. PMID- 29321552 TI - Random telegraph noise from resonant tunnelling at low temperatures. AB - The Random Telegraph Noise (RTN) in an advanced Metal-Oxide-Semiconductor Field Effect Transistor (MOSFET) is considered to be triggered by just one electron or one hole, and its importance is recognised upon the aggressive scaling. However, the detailed nature of the charge trap remains to be investigated due to the difficulty to find out the exact device, which shows the RTN feature over statistical variations. Here, we show the RTN can be observed from virtually all devices at low temperatures, and provide a methodology to enable a systematic way to identify the bias conditions to observe the RTN. We found that the RTN was observed at the verge of the Coulomb blockade in the stability diagram of a parasitic Single-Hole-Transistor (SHT), and we have successfully identified the locations of the charge traps by measuring the bias dependence of the RTN. PMID- 29321553 TI - Prediction of co-expression genes and integrative analysis of gene microarray and proteomics profile of Keshan disease. AB - Keshan disease (KD) is a kind of endemic cardiomyopathy which has a high mortality. However, molecular mechanism in the pathogenesis of KD remains poorly understood. Serum samples were collected from 112 KD patients and 112 normal controls. Gene microarray was used to screen differently expressed genes. Genevestigator was applied to forecast co-expression genes of significant gene. iTRAQ proteomics analysis was used to verify significant genes and their co expression genes. GO, COG, IPA and STRING were applied to undertake function categorization, pathway and network analysis separately. We identified 32 differentially expressed genes; IDH2, FEM1A, SSPB1 and their respective 30 co expression genes; 68 differential proteins in KD. Significant proteins were categorized into 23 biological processes, 16 molecular functions, 16 cellular components, 15 function classes, 13 KD pathways and 1 network. IDH2, FEM1A, SSBP1, CALR, NDUFS2, IDH3A, GAPDH, TCA Cycle II (Eukaryotic) pathway and NADP repair pathway may play important roles in the pathogenesis of KD. PMID- 29321554 TI - Mutations in DNMT3A, U2AF1, and EZH2 identify intermediate-risk acute myeloid leukemia patients with poor outcome after CR1. AB - Intermediate-risk acute myeloid leukemia (IR-AML) is a clinically heterogeneous disease, for which optimal post-remission therapy is debated. The utility of next generation sequencing information in decision making for IR-AML has yet to be elucidated. We retrospectively studied 100 IR-AML patients, defined by European Leukemia Net classification, who had mutational information at diagnosis, received intensive chemotherapy and achieved complete remission (CR) at Cleveland Clinic (CC). The Cancer Genome Atlas (TCGA) data were used for validation. In the CC cohort, median age was 58.5 years, 64% had normal cytogenetics, and 31% required >1 induction cycles to achieve CR1. In univariable analysis, patients carrying mutations in DNMT3A, U2AF1, and EZH2 had worse overall and relapse-free survival. After adjusting for other variables, the presence of these mutations maintained an independent effect on survival in both CC and TCGA cohorts. Patients who did not have the mutations and underwent hematopoietic cell transplant (HCT) had the best outcomes. HCT improved outcomes for patients who had these mutations. RUNX1 or ASXL1 mutations did not predict survival, and performance of HCT did not confer a significant survival benefit. Our results provide evidence of clinical utility in considering mutation screening to stratify IR-AML patients after CR1 to guide therapeutic decisions. PMID- 29321556 TI - The Water-Alkane Interface at Various NaCl Salt Concentrations: A Molecular Dynamics Study of the Readily Available Force Fields. AB - In this study, classical molecular dynamic simulations have been used to examine the molecular properties of the water-alkane interface at various NaCl salt concentrations (up to 3.0 mol/kg). A variety of different force field combinations have been compared against experimental surface/interfacial tension values for the water-vapour, decane-vapour and water-decane interfaces. Six different force fields for water (SPC, SPC/E, TIP3P, TIP3Pcharmm, TIP4P & TIP4P2005), and three further force fields for alkane (TraPPE-UA, CGenFF & OPLS) have been compared to experimental data. CGenFF, OPLS-AA and TraPPE-UA all accurately reproduce the interfacial properties of decane. The TIP4P2005 (four point) water model is shown to be the most accurate water model for predicting the interfacial properties of water. The SPC/E water model is the best three point parameterisation of water for this purpose. The CGenFF and TraPPE parameterisations of oil accurately reproduce the interfacial tension with water using either the TIP4P2005 or SPC/E water model. The salinity dependence on surface/interfacial tension is accurately captured using the Smith & Dang parameterisation of NaCl. We observe that the Smith & Dang model slightly overestimates the surface/interfacial tensions at higher salinities (>1.5 mol/kg). This is ascribed to an overestimation of the ion exclusion at the interface. PMID- 29321555 TI - Fourier Transform Infrared Microscopy Enables Guidance of Automated Mass Spectrometry Imaging to Predefined Tissue Morphologies. AB - Multimodal imaging combines complementary platforms for spatially resolved tissue analysis that are poised for application in life science and personalized medicine. Unlike established clinical in vivo multimodality imaging, automated workflows for in-depth multimodal molecular ex vivo tissue analysis that combine the speed and ease of spectroscopic imaging with molecular details provided by mass spectrometry imaging (MSI) are lagging behind. Here, we present an integrated approach that utilizes non-destructive Fourier transform infrared (FTIR) microscopy and matrix assisted laser desorption/ionization (MALDI) MSI for analysing single-slide tissue specimen. We show that FTIR microscopy can automatically guide high-resolution MSI data acquisition and interpretation without requiring prior histopathological tissue annotation, thus circumventing potential human-annotation-bias while achieving >90% reductions of data load and acquisition time. We apply FTIR imaging as an upstream modality to improve accuracy of tissue-morphology detection and to retrieve diagnostic molecular signatures in an automated, unbiased and spatially aware manner. We show the general applicability of multimodal FTIR-guided MALDI-MSI by demonstrating precise tumor localization in mouse brain bearing glioma xenografts and in human primary gastrointestinal stromal tumors. Finally, the presented multimodal tissue analysis method allows for morphology-sensitive lipid signature retrieval from brains of mice suffering from lipidosis caused by Niemann-Pick type C disease. PMID- 29321557 TI - Haptic shape discrimination and interhemispheric communication. AB - In three experiments participants haptically discriminated object shape using unimanual (single hand explored two objects) and bimanual exploration (both hands were used, but each hand, left or right, explored a separate object). Such haptic exploration (one versus two hands) requires somatosensory processing in either only one or both cerebral hemispheres; previous studies related to the perception of shape/curvature found superior performance for unimanual exploration, indicating that shape comparison is more effective when only one hemisphere is utilized. The current results, obtained for naturally shaped solid objects (bell peppers, Capsicum annuum) and simple cylindrical surfaces demonstrate otherwise: bimanual haptic exploration can be as effective as unimanual exploration, showing that there is no necessary reduction in ability when haptic shape comparison requires interhemispheric communication. We found that while successive bimanual exploration produced high shape discriminability, the participants' bimanual performance deteriorated for simultaneous shape comparisons. This outcome suggests that either interhemispheric interference or the need to attend to multiple objects simultaneously reduces shape discrimination ability. The current results also reveal a significant effect of age: older adults' shape discrimination abilities are moderately reduced relative to younger adults, regardless of how objects are manipulated (left hand only, right hand only, or bimanual exploration). PMID- 29321558 TI - Membrane shape-mediated wave propagation of cortical protein dynamics. AB - Immune cells exhibit stimulation-dependent traveling waves in the cortex, much faster than typical cortical actin waves. These waves reflect rhythmic assembly of both actin machinery and peripheral membrane proteins such as F-BAR domain containing proteins. Combining theory and experiments, we develop a mechanochemical feedback model involving membrane shape changes and F-BAR proteins that render the cortex an interesting dynamical system. We show that such cortical dynamics manifests itself as ultrafast traveling waves of cortical proteins, in which the curvature sensitivity-driven feedback always constrains protein lateral diffusion in wave propagation. The resulting protein wave propagation mainly reflects the spatial gradient in the timing of local protein recruitment from cytoplasm. We provide evidence that membrane undulations accompany these protein waves and potentiate their propagation. Therefore, membrane shape change and protein curvature sensitivity may have underappreciated roles in setting high-speed cortical signal transduction rhythms. PMID- 29321559 TI - The Role Of Parafacial Neurons In The Control Of Breathing During Exercise. AB - Neuronal cell groups residing within the retrotrapezoid nucleus (RTN) and C1 area of the rostral ventrolateral medulla oblongata contribute to the maintenance of resting respiratory activity and arterial blood pressure, and play an important role in the development of cardiorespiratory responses to metabolic challenges (such as hypercapnia and hypoxia). In rats, acute silencing of neurons within the parafacial region which includes the RTN and the rostral aspect of the C1 circuit (pFRTN/C1), transduced to express HM4D (Gi-coupled) receptors, was found to dramatically reduce exercise capacity (by 60%), determined by an intensity controlled treadmill running test. In a model of simulated exercise (electrical stimulation of the sciatic or femoral nerve in urethane anaesthetised spontaneously breathing rats) silencing of the pFRTN/C1 neurons had no effect on cardiovascular changes, but significantly reduced the respiratory response during steady state exercise. These results identify a neuronal cell group in the lower brainstem which is critically important for the development of the respiratory response to exercise and, determines exercise capacity. PMID- 29321560 TI - Role of cobalt cations in short range antiferromagnetic Co3O4 nanoparticles: a thermal treatment approach to affecting phonon and magnetic properties. AB - We report the phonon and magnetic properties of various well-stabilized Co3O4 nanoparticles. The net valence in cobalt (II)/(III) cation can be obtained by subtracting the Co2+ ions in tetrahedral interstices and Co3+ ions in the octahedral interstices, respectively, which will possess spatial inhomogeneity of its magnetic moment via Co2+ in tetrahedra and Co3+ in octahedral configurations in the normal spinel structure. Furthermore, the distribution of Co2+/Co3+ governed by various external (magnetic field and temperature) and internal (particle size and slightly distorted CoO6 octahedra) sources, have led to phenomena such as a large redshift of phonon-phonon interaction and short-range magnetic correlation in the inverse spinel structure. The outcome of our study is important in terms of the future development of magnetic semiconductor spintronic devices of Co3O4. PMID- 29321561 TI - Tumor suppressor activity of miR-451: Identification of CARF as a new target. AB - microRNAs (miRs) have recently emerged as small non-coding regulators of gene expression. We performed a loss-of-function screening by recruiting retrovirus mediated arbitrary manipulation of genome coupled with escape of cells from 5-Aza 2'-deoxycytidine (5-Aza-dC)-induced senescence. miRNA pool from cells that emerged from 5-Aza-dC-induced senescence was subjected to miR-microarray analysis with respect to the untreated control. We identified miR-451 as one of the upregulated miRs and characterized its functional relevance to drug resistance, cell growth, tumor suppressor proteins p53 and pRb, and stress response. We report that miR-451 caused growth arrest in cells leading to their resistance to 5-Aza-dC-induced senescence. Decrease in cyclin D1, CDK4 and phosphorylated pRB supported the growth arrest in miR-451 transfected cells. We demonstrate that Collaborator of ARF (CARF) protein is a new target of miR-451 that intermediates its function in tumor suppressor and stress signaling. PMID- 29321562 TI - Perception during double-step saccades. AB - How the visual system achieves perceptual stability across saccadic eye movements is a long-standing question in neuroscience. It has been proposed that an efference copy informs vision about upcoming saccades, and this might lead to shifting spatial coordinates and suppressing image motion. Here we ask whether these two aspects of visual stability are interdependent or may be dissociated under special conditions. We study a memory-guided double-step saccade task, where two saccades are executed in quick succession. Previous studies have led to the hypothesis that in this paradigm the two saccades are planned in parallel, with a single efference copy signal generated at the start of the double-step sequence, i.e. before the first saccade. In line with this hypothesis, we find that visual stability is impaired during the second saccade, which is consistent with (accurate) efference copy information being unavailable during the second saccade. However, we find that saccadic suppression is normal during the second saccade. Thus, the second saccade of a double-step sequence instantiates a dissociation between visual stability and saccadic suppression: stability is impaired even though suppression is strong. PMID- 29321564 TI - Spin-coupling-induced Improper Polarizations and Latent Magnetization in Multiferroic BiFeO3. AB - Multiferroic BiFeO3 (BFO) that exhibits a gigantic off-centering polarization (OCP) is the most extensively studied material among all multiferroics. In addition to this gigantic OCP, the BFO having R3c structural symmetry is expected to exhibit a couple of parasitic improper polarizations owing to coexisting spin polarization coupling mechanisms. However, these improper polarizations are not yet theoretically quantified. Herein, we show that there exist two distinct spin coupling-induced improper polarizations in the R3c BFO on the basis of the Landau Lifshitz-Ginzburg theory: DeltaP LF arising from the Lifshitz gradient coupling in a cycloidal spin-density wave, and DeltaP ms originating from the biquadratic magnetostrictive interaction. With the help of ab initio calculations, we have numerically evaluated magnitudes of these improper polarizations, in addition to the estimate of all three relevant coupling constants. We further predict that the magnetic susceptibility increases substantially upon the transition from the bulk R3c BFO to the homogeneous canted spin state in a constrained epitaxial film, which satisfactorily accounts for the experimental observation. The present study will help us understand the magnetoelectric coupling and shed light on design of BFO-based materials with improved multiferroic properties. PMID- 29321563 TI - Probiotic activities of Rhizobium laguerreae on growth and quality of spinach. AB - The growing interest in a healthy lifestyle and in environmental protection is changing habits regarding food consumption and agricultural practices. Good agricultural practice is indispensable, particularly for raw vegetables, and can include the use of plant probiotic bacteria for the purpose of biofertilization. In this work we analysed the probiotic potential of the rhizobial strain PEPV40, identified as Rhizobium laguerreae through the analysis of the recA and atpD genes, on the growth of spinach plants. This strain presents several in vitro plant growth promotion mechanisms, such as phosphate solubilisation and the production of indole acetic acid and siderophores. The strain PEPV40 produces cellulose and forms biofilms on abiotic surfaces. GFP labelling of this strain showed that PEPV40 colonizes the roots of spinach plants, forming microcolonies typical of biofilm initiation. Inoculation with this strain significantly increases several vegetative parameters such as leaf number, size and weight, as well as chlorophyll and nitrogen contents. Therefore, our findings indicate, for the first time, that Rhizobium laguerreae is an excellent plant probiotic, which increases the yield and quality of spinach, a vegetable that is increasingly being consumed raw worldwide. PMID- 29321565 TI - Characterization of novel endo-beta-N-acetylglucosaminidases from Sphingobacterium species, Beauveria bassiana and Cordyceps militaris that specifically hydrolyze fucose-containing oligosaccharides and human IgG. AB - Endo-beta-N-acetylglucosaminidase (ENGase) catalyzes hydrolysis of N-linked oligosaccharides. Although many ENGases have been characterized from various organisms, so far no fucose-containing oligosaccharides-specific ENGase has been identified in any organism. Here, we screened soil samples, using dansyl chloride (Dns)-labeled sialylglycan (Dns-SG) as a substrate, and discovered a strain that exhibits ENGase activity in the culture supernatant; this strain, named here as strain HMA12, was identified as a Sphingobacterium species by 16S ribosomal RNA gene analysis. By draft genome sequencing, five candidate ENGase encoding genes were identified in the genome of this strain. Recombinant proteins, purified from Escherichia coli expressing candidate genes ORF1152, ORF1188, ORF3046 and ORF3750 exhibited fucose-containing oligosaccharides-specific ENGase activity. These ENGases exhibited optimum activities at very acidic pHs (between pH 2.3-2.5). BLAST searches using sequences of these candidate genes identified two fungal homologs of ORF1188, one in Beauveria bassiana and the other in Cordyceps militaris. Recombinant ORF1188, Beauveria and Cordyceps ENGases released the fucose-containing oligosaccharides residues from rituximab (immunoglobulin G) but not the high-mannose-containing oligosaccharides residues from RNase B, a result that not only confirmed the substrate specificity of these novel ENGases but also suggested that natural glycoproteins could be their substrates. PMID- 29321567 TI - Structure and elasticity of bush and brush-like models of the endothelial glycocalyx. AB - The endothelial glycocalyx (EG), a sugar-rich layer that lines the luminal surface of blood vessels, is an important constituent of the vascular system. Although the chemical composition of the EG is fairly well known, there is no consensus regarding its ultrastructure. While previous experiments probed the properties of the layer at the continuum level, they did not provide sufficient insight into its molecular organisation. In this work, we investigate the EG mechanics using two simple brush and bush-like simulation models, and use these models to describe its molecular structure and elastic response to indentation. We analyse the relationship between the mechanical properties of the EG layer and several molecular parameters, including the filament bending rigidity, grafting density, and the type of ultrastructure . We show that variations in the glycan density determine the elasticity of the EG for small deformations, and that the normal stress may be effectively dampened by the EG layer, preventing the stress from being transferred to the cell membrane. Furthermore, our bush-like model allows us to evaluate the forces and energies required to overcome the mechanical resistance of the EG. PMID- 29321566 TI - N-domain of angiotensin-converting enzyme hydrolyzes human and rat amyloid-beta(1 16) peptides as arginine specific endopeptidase potentially enhancing risk of Alzheimer's disease. AB - Alzheimer's disease (AD) is a multifactorial neurodegenerative disorder. Amyloid beta (Abeta) aggregation is likely to be the major cause of AD. In contrast to humans and other mammals, that share the same Abeta sequence, rats and mice are invulnerable to AD-like neurodegenerative pathologies, and Abeta of these rodents (ratAbeta) has three amino acid substitutions in the metal-binding domain 1-16 (MBD). Angiotensin-converting enzyme (ACE) cleaves Abeta-derived peptide substrates, however, there are contradictions concerning the localization of the cleavage sites within Abeta and the roles of each of the two ACE catalytically active domains in the hydrolysis. In the current study by using mass spectrometry and molecular modelling we have tested a set of peptides corresponding to MBDs of Abeta and ratAbeta to get insights on the interactions between ACE and these Abeta species. It has been shown that the N-domain of ACE (N-ACE) acts as an arginine specific endopeptidase on the Abeta and ratAbeta MBDs with C-amidated termini, thus assuming that full-length Abeta and ratAbeta can be hydrolyzed by N ACE in the same endopeptidase mode. Taken together with the recent data on the molecular mechanism of zinc-dependent oligomerization of Abeta, our results suggest a modulating role of N-ACE in AD pathogenesis. PMID- 29321568 TI - Characterization of the Cry1Ah resistance in Asian corn Borer and its cross resistance to other Bacillus thuringiensis toxins. AB - Transgenic crops producing insecticidal proteins are effective to manage lepidopteran pests. Development of insect-resistance is the major threat to Bacillus thuringiensis (Bt) crops such as Cry1Ah-Maize. Laboratory selection with Bt-Cry1Ah toxin incorporated in artificial diet, during 48 generations of Asian corn borer (ACB) Ostrinia furnacalis produced 200-fold resistance. This resistant colony ACB-AhR readily consumed and survived on Cry1Ah-expressing Bt-maize. Cross resistance analysis showed high cross-resistance to Cry1F (464-fold), moderate cross-resistance to Cry1Ab (28.38-fold), Cry1Ac (22.11-fold) and no cross resistance to Cry1Ie toxin. This ACB-AhR cross-resistant phenotype is different from ACB-Cry1Fa resistant population that showed no cross resistance to Cry1Ah, suggesting that different mechanisms of resistance were selected in these two populations. Bioassays of reciprocal F1 crosses-progeny suggested autosomal inheritance of Cry1Ah resistance with no maternal effects. The dominance of resistance increased as concentration decreased. In Cry1Ah-maize tissues the progeny of reciprocal F1 crosses behaved as functionally recessive. Progenies analysis from backcrosses (F1 * resistant strain) suggested polygenic contribution to Cry1Ah- resistance in ACB-AhR. The use of multiple toxins is an imperative factor for delaying evolution of resistance to Cry1Ah-corn in ACB. However, the fact that ACB-AhR showed cross resistance to Cry1Fa indicates that selection of toxins for pyramided plants should be carefully done. PMID- 29321569 TI - Xeno-free pre-vascularized spheroids for therapeutic applications. AB - Spheroid culture has gained increasing popularity, arising as a promising tool for regenerative medicine applications. Importantly, spheroids may present advantages over single-cell suspensions in cell-based therapies (CT). Unfortunately, most growth media used for spheroid culture contain animal origin components, such as fetal bovine serum (FBS). The presence of FBS compromises the safety of CT and presents economic and ethical constraints. SCC (supplement for cell culture) is a novel xeno-free (XF) industrial cell culture supplement, derived from well-controlled pooled human plasma and processed under good manufacturing practice rules. Here, we developed a XF SCC-based formulation for 2D-culture of outgrowth endothelial cells (OEC), and then used it for generating co-culture spheroids of OEC and mesenchymal stem cells (MSC). XF MSC-OEC spheroids were characterized in detail and compared to spheroids cultured in FBS supplemented medium. XF spheroids presented comparable integrity, size and morphology as the reference culture. The use of both media resulted in spheroids with similar structure, abundant extracellular matrix deposition and specific patterns of OEC distribution and organization. Notably, XF spheroids presented significantly enhanced angiogenic potential, both in vitro (fibrin sprouting assay) and in vivo (CAM assay). These findings are particularly promising in the context of potential therapeutic applications. PMID- 29321570 TI - Transfer of a bla CTX-M-1-carrying plasmid between different Escherichia coli strains within the human gut explored by whole genome sequencing analyses. AB - Horizontal transfer of antibiotic resistance determinants contributes to dissemination of antibiotic resistance. Such transfer of resistance genes within the human gut has been documented in some in vivo studies. The present study investigated seven bla CTX-M-1-carrying Escherichia coli isolates from three consecutive faecal samples collected from one cystic fibrosis patient in a nine months period, by analysing whole genome sequencing data. The analyses showed that the seven E. coli isolates represented three genetically diverse strains. All isolates contained bla CTX-M-1-carrying Incl1 plasmids that shared a common 101 kb backbone differing by only four SNPs. The plasmids harboured by the three different E. coli strains varied within limited regions suggestive of recombination events, according to the phylogenetic topology of the genomes of the isolates harbouring them. The findings strongly suggest that horizontal transfer of a bla CTX-M-1-carrying plasmid had occurred within the patient's gut. The study illustrates the within-host diversity of faecally carried resistant E. coli isolates and highlights the value of collecting multiple bacterial colonies from longitudinally collected samples to assess faecal carriage of resistant enterobacteria. The clustering of the plasmids with the corresponding E. coli strains carrying them indicates that the plasmids appear to have adapted to their respective E. coli hosts. PMID- 29321571 TI - Thrombin@Fe3O4 nanoparticles for use as a hemostatic agent in internal bleeding. AB - Bleeding remains one of the main causes of premature mortality at present, with internal bleeding being the most dangerous case. In this paper, magnetic hemostatic nanoparticles are shown for the first time to assist in minimally invasive treatment of internal bleeding, implying the introduction directly into the circulatory system followed by localization in the bleeding zone due to the application of an external magnetic field. Nanoparticles were produced by entrapping human thrombin (THR) into a sol-gel derived magnetite matrix followed by grinding to sizes below 200 nm and subsequent colloidization. Prepared colloids show protrombotic activity and cause plasma coagulation in in vitro experiments. We also show here using a model blood vessel that the THR@ferria composite does not cause systematic thrombosis due to low activity, but being concentrated by an external magnetic field with simultaneous fibrinogen injection accelerates local hemostasis and stops the bleeding. For instance, a model vessel system with circulating blood at the puncture of the vessel wall and the application of a permanent magnetic field yielded a hemostasis time by a factor of 6.5 shorter than that observed for the control sample. Biocompatibility of composites was tested on HELF and HeLa cells and revealed no toxic effects. PMID- 29321572 TI - Specific inhibition of acetylcholinesterase as an approach to decrease muscarinic side effects during myasthenia gravis treatment. AB - Non-selective inhibitors of cholinesterases (ChEs) are clinically used for treatment of myasthenia gravis (MG). While being generally safe, they cause numerous adverse effects including induction of hyperactivity of urinary bladder and intestines affecting quality of patients life. In this study we have compared two ChEs inhibitors, a newly synthesized compound C547 and clinically used pyridostigmine bromide, by their efficiency to reduce muscle weakness symptoms and ability to activate contractions of urinary bladder in a rat model of autoimmune MG. We found that at dose effectively reducing MG symptoms, C547 did not affect activity of rat urinary bladder. In contrast, at equipotent dose, pyridostigmine caused a significant increase in tonus and force of spontaneous contractions of bladder wall. We also found that this profile of ChEs inhibitors translates into the preparation of human urinary bladder. The difference in action observed for C547 and pyridostigmine we attribute to a high level of pharmacological selectivity of C547 in inhibiting acetylcholinesterase as compared to butyrylcholinesterase. These results raise reasonable hope that selective acetylcholinesterase inhibitors should show efficacy in treating MG in human patients with a significant reduction in adverse effects related to hyperactivation of smooth muscles. PMID- 29321573 TI - Correlation of Gli1 and HER2 expression in gastric cancer: Identification of novel target. AB - HER2 becomes the standard of care for guiding adjuvant treatment of gastric cancer with trastuzumab in recent years. However, the usage of this target agent is still limited because of the resistance to trastuzumab or the negative expression of HER2 in tumor tissues. The Gli1 and HER2 both play an important role in the pathogenesis of gastric cancer. However, the correlation of them is still unclear. Here we found Gli1 and HER2 are highly expressed in gastric cancer tissues, and they are positively related. Next, we found Gli1 positive patients live a shorter survival time no matter HER2 positive or negative. Furthermore, univariate and multivariate analysis revealed that venous invasion, HER2 expression, Gli1 expression were independent prognostic factors for the survival time in gastric cancer. In addition, suppressing the expression level of Gli1 can decrease the cell viability and migration ability in cells and subcutaneous tumors. Finally, we found that HER2 may regulate Gli1 by Akt-mTOR-p70S6K pathway. Inhibit of HER2 and SMO have synergistic effect on reduction of cell viability. In conclusion, Gli1 is a favorable prognostic indicator in gastric cancer. As a novel target, Gli1 worth further study, especially in Her2-targeted therapy resistant cancers. PMID- 29321574 TI - Impact of climate change and human activity on soil landscapes over the past 12,300 years. AB - Soils are key to ecosystems and human societies, and their critical importance requires a better understanding of how they evolve through time. However, identifying the role of natural climate change versus human activity (e.g. agriculture) on soil evolution is difficult. Here we show that for most of the past 12,300 years soil erosion and development were impacted differently by natural climate variability, as recorded by sediments deposited in Lake Dojran (Macedonia/Greece): short-lived ( < 1,000 years) climatic shifts had no effect on soil development but impacted soil erosion. This decoupling disappeared between 3,500 and 3,100 years ago, when the sedimentary record suggests an unprecedented erosion event associated with the development of agriculture in the region. Our results show unambiguously how differently soils evolved under natural climate variability (between 12,300 and 3,500 years ago) and later in response to intensifying human impact. The transition from natural to anthropogenic landscape started just before, or at, the onset of the Greek 'Dark Ages' (~3,200 cal yr BP). This could represent the earliest recorded sign of a negative feedback between civilization and environmental impact, where the development of agriculture impacted soil resources, which in turn resulted in a slowdown of civilization expansion. PMID- 29321575 TI - A Complex Network Approach for the Estimation of the Energy Demand of Electric Mobility. AB - We study how renewable energy impacts regional infrastructures considering the full deployment of electric mobility at that scale. We use the Sardinia Island in Italy as a paradigmatic case study of a semi-closed system both by energy and mobility point of view. Human mobility patterns are estimated by means of census data listing the mobility dynamics of about 700,000 vehicles, the energy demand is estimated by modeling the charging behavior of electric vehicle owners. Here we show that current renewable energy production of Sardinia is able to sustain the commuter mobility even in the theoretical case of a full switch from internal combustion vehicles to electric ones. Centrality measures from network theory on the reconstructed network of commuter trips allows to identify the most important areas (hubs) involved in regional mobility. The analysis of the expected energy flows reveals long-range effects on infrastructures outside metropolitan areas and points out that the most relevant unbalances are caused by spatial segregation between production and consumption areas. Finally, results suggest the adoption of planning actions supporting the installation of renewable energy plants in areas mostly involved by the commuting mobility, avoiding spatial segregation between consumption and generation areas. PMID- 29321576 TI - The Microwell-mesh: A high-throughput 3D prostate cancer spheroid and drug testing platform. AB - Treatment following early diagnosis of Prostate cancer (PCa) is increasingly successful, whilst the treatment of advanced and metastatic PCa remains challenging. A major limitation in the development of new therapies is the prediction of drug efficacy using in vitro models. Classic in vitro 2-dimensional (2D) cell monolayer cultures are hypersensitive to anti-cancer drugs. As a result, there has been a surge in the development of platforms that enable three dimensional (3D) cultures thought to better replicate natural physiology and better predict drug efficacy. A deficiency associated with most 3D culture systems is that their complexity reduces the number of replicates and combination therapies that can be feasibly evaluated. Herein, we describe the use of a microwell platform that utilises a nylon mesh to retain 3D micro-tumours in discrete microwells; termed the Microwell-mesh. The Microwell-mesh enables the manufacture of ~150 micro-tumours per well in a 48-well plate, and response to anti-tumour drugs can be readily quantified. Our results demonstrate that 3D micro-tumours, unlike 2D monolayers, are not hypersensitive to Docetaxel or Abiraterone Acetate, providing a superior platform for the evaluation of sequential drug treatment. In summary, the Microwell-mesh provides an efficient 3D micro-tumour platform for single and sequential drug screening. PMID- 29321577 TI - 8u, a pro-apoptosis/cell cycle arrest compound, suppresses invasion and metastasis through HSP90alpha downregulating and PI3K/Akt inactivation in hepatocellular carcinoma cells. AB - 8u, an acridine derivative, has been proved effective anti-hepatocarcinoma effect, while the underlying mechanism remains unclear. Here, metabolomics and proteomics approaches were applied to study its anti-cancer mechanism and explore its effect on HepG2 cells' invasion and metastasis abilities. The results showed that 8u significantly suppressed HepG2 cells migration and enhanced cell-to-cell junctions. The inhibition effect of 8u on invasion and metastasis disappeared after HSP90alpha gene silencing, and was reversed after HSP90alpha overexpression. The biological experimental results indicated that 8u also blocked PI3K/Akt pathway, thereby reducing fatty acid synthase (FASN) protein expression and disordering intracellular lipid metabolism to inhibit cell invasion and metastasis. In addition, HSP90alpha protein and PI3K/Akt pathway could co-adjust to each other. These findings demonstrated that 8u could efficiently suppress the invasion and metastasis of HepG2 cells by decreasing the expression of HSP90alpha protein and inhibiting the PI3K/Akt signaling pathway, which could be used as a potential candidate for the treatment of HCC. PMID- 29321578 TI - Distinction of Plasmodium ovale wallikeri and Plasmodium ovale curtisi using quantitative Polymerase Chain Reaction with High Resolution Melting revelation. AB - Plasmodium ovale curtisi (Poc) and Plasmodium ovale wallikeri (Pow) have been described as two distinct species, only distinguishable by molecular methods such as PCR. Because of no well-defined endemic area and a variable clinical presentation as higher thrombocytopenia and nausea associated with Pow infection and asymptomatic forms of the pathology with Poc infection, rapid and specific identification of Plasmodium ovale curtisi and Plasmodium ovale wallikeri are needed. The aim of the study was to evaluate a new quantitative real-time PCR coupled with high resolution melting revelation (qPCR-HRM) for identification of both species. Results were compared with a nested-PCR, considered as a gold standard for Pow and Poc distinction. 356 samples including all human Plasmodium species at various parasitaemia were tested. The qPCR-HRM assay allowed Poc and Pow discrimination in 66 samples tested with a limit of detection evaluated at 1 parasite/uL. All these results were concordant with nested-PCR. Cross-reaction was absent with others blood parasites. The qPCR-HRM is a rapid and convenient technique to Poc and Pow distinction. PMID- 29321579 TI - Differentiation potential of Pluripotent Stem Cells correlates to the level of CHD7. AB - Embryonic Stem Cells (ESC) possesses two distinct features; self-renewal and the potential to differentiate. Here we show the differentiation potential and growth rate of ESC correlates positively with the expression level of the gene encoding chromodomain helicase DNA binding protein 7 (CHD7). When ESCs are maintained in feeder-free conditions and single cell seeding, ESC KhES-1 having 4520 copies or more of CHD7 in 5 ng total RNA show differentiation potential, but this is lost when the CHD7 copy number is reduced in KhES-1 to less than 696 by alternative culture conditions. Introduction of siCHD7 reduced differentiation potential and growth rate of KhES-1. Interestingly, KhES-1 underwent spontaneous differentiation when mCHD7 was introduced and we could not obtain CHD7 overexpressing ESC in culture. These data suggest that CHD7 drives differentiation, and there is a lower limit for CHD7 to initiate differentiation and an upper limit for CHD7 if maintained in undifferentiated state, and such upper limit varies depending on culture condition. As CHD7 drives cell growth, ESC with the highest permissible CHD7 level in the given culture become dominant in a couple of passages. Thus, we can select differentiation resistance-free cell clones by optimizing the culture system using CHD7 as an index. PMID- 29321580 TI - Genome-wide comparative analysis of papain-like cysteine protease family genes in castor bean and physic nut. AB - Papain-like cysteine proteases (PLCPs) are a class of proteolytic enzymes involved in many plant processes. Compared with the extensive research in Arabidopsis thaliana, little is known in castor bean (Ricinus communis) and physic nut (Jatropha curcas), two Euphorbiaceous plants without any recent whole genome duplication. In this study, a total of 26 or 23 PLCP genes were identified from the genomes of castor bean and physic nut respectively, which can be divided into nine subfamilies based on the phylogenetic analysis: RD21, CEP, XCP, XBCP3, THI, SAG12, RD19, ALP and CTB. Although most of them harbor orthologs in Arabidopsis, several members in subfamilies RD21, CEP, XBCP3 and SAG12 form new groups or subgroups as observed in other species, suggesting specific gene loss occurred in Arabidopsis. Recent gene duplicates were also identified in these two species, but they are limited to the SAG12 subfamily and were all derived from local duplication. Expression profiling revealed diverse patterns of different family members over various tissues. Furthermore, the evolution characteristics of PLCP genes were also compared and discussed. Our findings provide a useful reference to characterize PLCP genes and investigate the family evolution in Euphorbiaceae and species beyond. PMID- 29321581 TI - A ruthenium-based 5-fluorouracil complex with enhanced cytotoxicity and apoptosis induction action in HCT116 cells. AB - Combination of multifunctionalities into one compound is a rational strategy in medicinal chemical design, and have often been used with metallodrug-based compounds. In the present study, we synthesized a novel ruthenium-based 5 fluorouracil complex [Ru(5-FU)(PPh3)2(bipy)]PF6 (PPh3 = triphenylphosphine; and bipy = 2,2'-bipyridine) with enhanced cytotoxicity in different cancer cells, and assessed its apoptosis induction action in human colon carcinoma HCT116 cells. The complex was characterized by infrared, cyclic voltammetry, molar conductance measurements, elemental analysis, NMR experiments and X-ray crystallographic analysis. In both 2D and 3D cell culture models, the complex presented cytotoxicity to cancer cells more potent than 5-FU. A typical morphology of apoptotic cell death, increased internucleosomal DNA fragmentation, without cell membrane permeability, loss of the mitochondrial transmembrane potential, increased phosphatidylserine externalization and caspase-3 activation were observed in complex-treated HCT116 cells. Moreover, the pre-treatment with Z-DEVD FMK, a caspase-3 inhibitor, reduced the apoptosis induced by the complex, indicating cell death by apoptosis through caspase-dependent and mitochondrial intrinsic pathways. The complex failed to induce reactive oxygen species production and DNA intercalation. In conclusion, the novel complex displays enhanced cytotoxicity to different cancer cells, and is able to induce caspase mediated apoptosis in HCT116 cells. PMID- 29321582 TI - Serum podocalyxin levels correlate with carotid intima media thickness, implicating its role as a novel biomarker for atherosclerosis. AB - Podocalyxin is a cell surface sialomucin, which is expressed in not only glomerular podocytes but also vascular endothelial cells. Urinary podocalyxin is used as a marker for glomerular disease. However, there are no reports describing serum podocalyxin (s-Podxl) levels. Therefore, the association between s-Podxl levels and clinical parameters were examined with 52 patients. s-Podxl level was evaluated using enzyme-linked immunosorbent assay. The median s-Podxl level was 14.2 ng/dL (interquartile range: 10.8-22.2 ng/dL). There were significant correlations (correlation coefficient: r > 0.2) of s-Podxl levels with carotid intima media thickness (IMT) (r = 0.30, p = 0.0307). Multiple logistic regression analysis showed that s-Podxl levels remained significantly associated with carotid IMT > 1 mm (OR: 1.15; 95% CI 1.02-1.31, p = 0.026) after adjustments for traditional cardiovascular risk factors such as age, sex, current smoking status, hypertension, dyslipidemias, and diabetes. In conclusion, s-Podxl is independently associated with carotid IMT and might be used as a novel biomarker for cardiovascular disease. PMID- 29321583 TI - Allele-specific repression of Sox2 through the long non-coding RNA Sox2ot. AB - The transcription factor Sox2 controls the fate of pluripotent stem cells and neural stem cells. This gatekeeper function requires well-regulated Sox2 levels. We postulated that Sox2 regulation is partially controlled by the Sox2 overlapping long non-coding RNA (lncRNA) gene Sox2ot. Here we show that the RNA levels of Sox2ot and Sox2 are inversely correlated during neural differentiation of mouse embryonic stem cells (ESCs). Through allele-specific enhanced transcription of Sox2ot in mouse Sox2eGFP knockin ESCs we demonstrate that increased Sox2ot transcriptional activity reduces Sox2 RNA levels in an allele specific manner. Enhanced Sox2ot transcription, yielding lower Sox2 RNA levels, correlates with a decreased chromatin interaction of the upstream regulatory sequence of Sox2 and the ESC-specific Sox2 super enhancer. Our study indicates that, in addition to previously reported in trans mechanisms, Sox2ot can regulate Sox2 by an allele-specific mechanism, in particular during development. PMID- 29321584 TI - The critical role of phase difference in theta oscillation between bilateral parietal cortices for visuospatial working memory. AB - Visual working memory (VWM) refers to people's ability to maintain and manipulate visual information on line. Its capacity varies between individuals, and neuroimaging studies have suggested a link between one's VWM capacity and theta power in the parietal cortex. However, it is unclear how the parietal cortices communicate with each other in order to support VWM processing. In two experiments we employed transcranial alternate current stimulation (tACS) to use frequency-specific (6 Hz) alternating current to modulate theta oscillation between the left and right parietal cortex with either in-phase (0 degrees difference, Exp 1), anti-phase (180 degrees difference, Exp 2), or sham sinusoidal current stimulation. In Experiment 1, in-phase theta tACS induced an improved VWM performance, but only in low-performers, whereas high-performers suffered a marginally-significant VWM impairment. In Experiment 2, anti-phase theta tACS did not help the low-performers, but significantly impaired high performers' VWM capacity. These results not only provide causal evidence for theta oscillation in VWM processing, they also highlight the intricate interaction between tACS and individual differences-where the same protocol that enhances low-performers' VWM can backfire for the high-performers. We propose that signal complexity via coherent timing and phase synchronization within the bilateral parietal network is crucial for successful VWM functioning. PMID- 29321585 TI - Site-specific randomization of the endogenous genome by a regulatable CRISPR-Cas9 piggyBac system in human cells. AB - Randomized mutagenesis at an endogenous chromosomal locus is a promising approach for protein engineering, functional assessment of regulatory elements, and modeling genetic variations. In mammalian cells, however, it is challenging to perform site-specific single-nucleotide substitution with single-stranded oligodeoxynucleotide (ssODN) donor templates due to insufficient homologous recombination and the infeasibility of positive selection. Here, we developed a DNA transposon based CRISPR-Cas9 regulated transcription and nuclear shuttling (CRONUS) system that enables the stable transduction of CRISPR-Cas9/sgRNA in broad cell types, but avoids undesired genome cleavage in the absence two chemical inducing molecules. Highly efficient single nucleotide alterations induced randomization of desired codons (up to 4 codons) at a defined genomic locus in various human cell lines, including human iPS cells. Thus, CRONUS provides a novel platform for modeling diseases and genetic variations. PMID- 29321586 TI - Chemicals released by male sea cucumber mediate aggregation and spawning behaviours. AB - The importance of chemical communication in reproduction has been demonstrated in many marine broadcast spawners. However, little is known about the use of chemical communication by echinoderms, the nature of the compounds involved and their mechanism(s) of action. Here, the hypothesis that the sea cucumber Holothuria arguinensis uses chemical communication for aggregation and spawning was tested. Water conditioned by males, but not females, attracted both males and females; gonad homogenates and coelomic fluid had no effect on attraction. Male spawning water, but not female spawning water, stimulated males and females to release their gametes; the spermatozoa alone did not induce spawning. H. arguinensis male spawning water also induced spawning in the phylogenetically related H. mammata. This indicates that males release pheromones together with their gametes that induce spawning in conspecifics and possibly sympatric species. Finally, the male pheromone seems to be a mixture with at least one labile compound (biological activity is lost after four hours at ambient temperature) possibly including phosphatidylcholines. The identification of pheromones in sea cucumbers offers a new ecological perspective and may have practical applications for their aquaculture. PMID- 29321588 TI - An experimental approach for real time mass spectrometric CVD gas phase investigations. AB - This is a report on the first setup of a recently developed, extremely sensitive and very fast 3D quadrupole ion trap mass spectrometer inline in a metalorganic vapour phase epitaxy (MOVPE) system. This setup was developed ultimately for the decomposition- and the interaction analysis of various established as well as novel metalorganic sources for MOVPE deposition of III/V semiconductors. To make in-situ gas phase and growth interaction analysis on a new level of sensitivity possible without disturbing the MOVPE growth process itself, an optimized experimental connection of the mass spectrometer to the MOVPE system is required. This work reports on the realization of such an experimental setup and provides first proof of concept for decomposition analysis. In addition, a comparison to previous studies and gas-phase analysis at MOVPE systems will be given in this work. PMID- 29321587 TI - Distribution analysis of epertinib in brain metastasis of HER2-positive breast cancer by imaging mass spectrometry and prospect for antitumor activity. AB - Epertinib (S-222611) is a potent, reversible, and selective tyrosine kinase inhibitor of epidermal growth factor receptor (EGFR), human EGFR2 (HER2), and human EGFR4. We developed experimental brain metastasis models by intraventricular injection (intraventricular injection mouse model; IVM) of HER2 positive breast cancer (MDA-MB-361-luc-BR2/BR3) or T790M-EGFR-positive lung cancer (NCI-H1975-luc) cells. After a single oral administration, epertinib and lapatinib concentrations in brain metastatic regions were analyzed by quantitative imaging mass spectrometry. In the NCI-H1975 lung cancer IVM, the concentration of epertinib in brain metastasis was comparable to that of lapatinib. However, in the MDA-MB-361 breast cancer IVM, the concentration of epertinib in brain metastasis was >10 times higher than that of lapatinib. Furthermore, the epertinib tumor-to-normal brain ratio was ~4 times higher than that of lapatinib. Blood-tumor barrier (BTB) permeability was assessed in each brain metastatic region. In the lung cancer model, fluorescently labeled dextran was more highly detected in brain metastatic regions than in brain parenchyma. However, in breast cancer models, dextran fluorescence intensity in brain metastatic regions and brain parenchyma were comparable, suggesting that the BTB remained largely intact. Epertinib would be promised as a therapeutic agent for HER2-positive breast cancer with brain metastasis. PMID- 29321589 TI - Comparative analysis of low complexity regions in Plasmodia. AB - Low complexity regions (LCRs) are a common feature shared by many genomes, but their evolutionary and functional significance remains mostly unknown. At the core of the uncertainty is a poor understanding of the mechanisms that regulate their retention in genomes, whether driven by natural selection or neutral evolution. Applying a comparative approach of LCRs to multiple strains and species is a powerful approach to identify patterns of conservation in these regions. Using this method, we investigate the evolutionary history of LCRs in the genus Plasmodium based on orthologous protein coding genes shared by 11 species and strains from primate and rodent-infecting pathogens. We find multiple lines of evidence in support of natural selection as a major evolutionary force shaping the composition and conservation of LCRs through time and signatures that their evolutionary paths are species specific. Our findings add a comparative analysis perspective to the debate on the evolution of LCRs and harness the power of sequence comparisons to identify potential functionally important LCR candidates. PMID- 29321590 TI - Six domoic acid related compounds from the red alga, Chondria armata, and domoic acid biosynthesis by the diatom, Pseudo-nitzschia multiseries. AB - Domoic acid (DA, 1), a potent neurotoxin that causes amnesic shellfish poisoning, has been found in diatoms and red algae. While biosynthetic pathway towards DA from geranyl diphosphate and L-glutamate has been previously proposed, its late stage is still unclear. Here, six novel DA related compounds, 7'-methyl-isodomoic acid A (2) and B (3), N-geranyl-L-glutamic acid (4), 7'-hydroxymethyl-isodomoic acid A (5) and B (6), and N-geranyl-3(R)-hydroxy-L-glutamic acid (7), were isolated from the red alga, Chondria armata, and their structures were determined. The compounds 4 and 7, linear compounds, are predictable as the precursors to form the DA pyrrolidine ring. The compounds 2 and 3 are thought as the cyclized products of 7; therefore, dehydration and electron transfer from the internal olefin of 7 is a possible mechanism for the pyrrolidine ring formation. One terminal methyl group of the side chain of 2 and 3 is predicted to be oxidized to hydroxymethyl (5, 6), and then to carboxylic acids, forming isodomoic acids A and B. Finally, the terminal olefin of isodomoic acid A would be isomerized to form DA. In addition, [15N, D]-labeled 4 was incorporated into DA using the diatom, Pseudo-nitzschia multiseries, demonstrating that 4 is the genuine precursor of DA. PMID- 29321593 TI - Welcome message from the new Editor-in-Chief. PMID- 29321591 TI - Respiratory Syncytial Virus Infection Changes Cargo Composition of Exosome Released from Airway Epithelial Cells. AB - Exosomes are microvesicles known to carry biologically active molecules, including RNA, DNA and proteins. Viral infections can induce profound changes in exosome composition, and exosomes have been implicated in viral transmission and pathogenesis. No information is current available regarding exosome composition and function during infection with Respiratory Syncytial Virus (RSV), the most important cause of lower respiratory tract infections in children. In this study, we characterized exosomes released from RSV-infected lung carcinoma-derived A549 cells. RNA deep sequencing revealed that RSV exosomes contain a diverse range of RNA species like messenger and ribosomal RNA fragments, as well as small noncoding RNAs, in a proportion different from exosomes isolated from mock infected cells. We observed that both RNA and protein signatures of RSV were present in exosomes, however, they were not able to establish productive infection in uninfected cells. Exosomes isolated from RSV-infected cells were able to activate innate immune response by inducing cytokine and chemokine release from human monocytes and airway epithelial cells. These data suggest that exosomes may play an important role in pathogenesis or protection against disease, therefore understating their role in RSV infection may open new avenues for target identification and development of novel therapeutics. PMID- 29321592 TI - Amyloid beta causes excitation/inhibition imbalance through dopamine receptor 1 dependent disruption of fast-spiking GABAergic input in anterior cingulate cortex. AB - Alzheimer's disease (AD) is the most common cause of dementia in the elderly. At the early stages of AD development, the soluble beta-amyloid (Abeta) induces synaptic dysfunction, perturbs the excitation/inhibition balance of neural circuitries, and in turn alters the normal neural network activity leading to cognitive decline, but the underlying mechanisms are not well established. Here by using whole-cell recordings in acute mouse brain slices, we found that 50 nM Abeta induces hyperexcitability of excitatory pyramidal cells in the cingulate cortex, one of the most vulnerable areas in AD, via depressing inhibitory synaptic transmission. Furthermore, by simultaneously recording multiple cells, we discovered that the inhibitory innervation of pyramidal cells from fast spiking (FS) interneurons instead of non-FS interneurons is dramatically disrupted by Abeta, and perturbation of the presynaptic inhibitory neurotransmitter gamma-aminobutyric acid (GABA) release underlies this inhibitory input disruption. Finally, we identified the increased dopamine action on dopamine D1 receptor of FS interneurons as a key pathological factor that contributes to GABAergic input perturbation and excitation/inhibition imbalance caused by Abeta. Thus, we conclude that the dopamine receptor 1-dependent disruption of FS GABAergic inhibitory input plays a critical role in Abeta induced excitation/inhibition imbalance in anterior cingulate cortex. PMID- 29321594 TI - Estimating the capacity for production of formamide by radioactive minerals on the prebiotic Earth. AB - Water creates special problems for prebiotic chemistry, as it is thermodynamically favorable for amide and phosphodiester bonds to hydrolyze. The availability of alternative solvents with more favorable properties for the formation of prebiotic molecules on the early Earth may have helped bypass this so-called "water paradox". Formamide (FA) is one such solvent, and can serve as a nucleobase precursor, but it is difficult to envision how FA could have been generated in large quantities or accumulated in terrestrial surface environments. We report here the conversion of aqueous acetonitrile (ACN) via hydrogen cyanide (HCN) as an intermediate into FA by gamma-irradiation under conditions mimicking exposure to radioactive minerals. We estimate that a radioactive placer deposit could produce 0.1-0.8 mol FA km-2 year-1. A uraninite fission zone comparable to the Oklo reactors in Gabon can produce 0.1-1 mol m-2 year-1, orders of magnitude greater than other scenarios of FA production or delivery for which reaching sizeable concentrations of FA are problematic. Radioactive mineral deposits may be favorable settings for prebiotic compound formation through emergent geologic processes and FA-mediated organic chemistry. PMID- 29321597 TI - Microbial habitability of Europa sustained by radioactive sources. AB - There is an increasing interest in the icy moons of the Solar System due to their potential habitability and as targets for future exploratory missions, which include astrobiological goals. Several studies have reported new results describing the details of these moons' geological settings; however, there is still a lack of information regarding the deep subsurface environment of the moons. The purpose of this article is to evaluate the microbial habitability of Europa constrained by terrestrial analogue environments and sustained by radioactive energy provided by natural unstable isotopes. The geological scenarios are based on known deep environments on Earth, and the bacterial ecosystem is based on a sulfate-reducing bacterial ecosystem found 2.8 km below the surface in a basin in South Africa. The results show the possibility of maintaining the modeled ecosystem based on the proposed scenarios and provides directions for future models and exploration missions for a more complete evaluation of the habitability of Europa and of icy moons in general. PMID- 29321595 TI - MicroRNA-7 mediates cross-talk between metabolic signaling pathways in the liver. AB - MicroRNAs (miRNAs) have emerged as critical regulators of cellular metabolism. To characterise miRNAs crucial to the maintenance of hepatic lipid homeostasis, we examined the overlap between the miRNA signature associated with inhibition of peroxisome proliferator activated receptor-alpha (PPAR-alpha) signaling, a pathway regulating fatty acid metabolism, and the miRNA profile associated with 25-hydroxycholesterol treatment, an oxysterol regulator of sterol regulatory element binding protein (SREBP) and liver X receptor (LXR) signaling. Using this strategy, we identified microRNA-7 (miR-7) as a PPAR-alpha regulated miRNA, which activates SREBP signaling and promotes hepatocellular lipid accumulation. This is mediated, in part, by suppression of the negative regulator of SREBP signaling: ERLIN2. miR-7 also regulates genes associated with PPAR signaling and sterol metabolism, including liver X receptor beta (LXR-beta), a transcriptional regulator of sterol synthesis, efflux, and excretion. Collectively, our findings highlight miR-7 as a novel mediator of cross-talk between PPAR, SREBP, and LXR signaling pathways in the liver. PMID- 29321598 TI - A new macrofaunal limit in the deep biosphere revealed by extreme burrow depths in ancient sediments. AB - Macrofauna is known to inhabit the top few 10s cm of marine sediments, with rare burrows up to two metres below the seabed. Here, we provide evidence from deep water Permian strata for a previously unrecognised habitat up to at least 8 metres below the sediment-water interface. Infaunal organisms exploited networks of forcibly injected sand below the seabed, forming living traces and reworking sediment. This is the first record that shows sediment injections are responsible for hosting macrofaunal life metres below the contemporaneous seabed. In addition, given the widespread occurrence of thick sandy successions that accumulate in deep-water settings, macrofauna living in the deep biosphere are likely much more prevalent than considered previously. These findings should influence future sampling strategies to better constrain the depth range of infaunal animals living in modern deep-sea sands. One Sentence Summary: The living depth of infaunal macrofauna is shown to reach at least 8 metres in new habitats associated with sand injections. PMID- 29321596 TI - High Resolution 31P NMR Spectroscopy Generates a Quantitative Evolution Profile of Phosphorous Translocation in Germinating Sesame Seed. AB - Phosphorus metabolism and circulation are essential bio-physicochemical processes during development of a plant and have been extensively studied and known to be affected by temperature, humidity, lighting, hormones etc. However, a quantitative description of how various phosphorous species evolve over time has not been reported. In this work, a combined 31P liquid and solid state NMR spectroscopic methodology is employed, supported by a new extraction scheme and data analysis method, to carry out a quantitative investigation of phosphorous circulation in germinating sesame seeds in dark and under illumination with and without adding a growth hormone. The spectra show that only slight changes occur for phosphorous metabolism at the initial stage but a rapid change takes place between 48-96 hours after germination is started. The metabolism is found to be temperature dependent and affected by illumination and hormone. However, neither illumination nor hormone affects the final residual concentration of phytin. Moreover, phytin does not flow out of cotyledon and the phosphorous flowing to other parts of the plant is always in the inorganic form. The overall evolution profile of phytate consumption is found to be a Gaussian decaying function. These findings can be explained with a dynamic model on phytin conversion. PMID- 29321599 TI - Splicing QTL of human adipose-related traits. AB - Recently, genome-wide association studies (GWAS) have identified 11 loci associated with adipose-related traits across different populations. However, their functional roles still remain largely unknown. In this study, we aimed to explore the splicing regulation of these GWAS signals in a tissue-specific fashion. For adipose-related GWAS signals, we selected six adipose-related tissues (adipose subcutaneous, artery tibial, blood, heart left ventricle, muscle skeletal, and thyroid) with the sample size greater than 80 for splicing quantitative trait loci (QTL) analysis using GTEx released datasets. We integrated GWAS summary statistics of nine adipose-related traits (an average of 2.6 million SNPs per GWAS), and splicing QTLs from 6 GTEx tissues with an average of 337,900 splicing QTL SNPs, and 684,859 junctions. Our filtering process generated an average of 86,549 SNPs and 162,841 exon-exon links (junctions) for each tissue. A total of seven exon-exon junctions in four genes (AKTIP, DTNBP1, FTO and UBE2E1) were found to be significantly associated with four SNPs that showed genome-wide significance with body fat distribution (rs17817288, rs7206790, rs11710420 and rs2237199). These splicing events might contribute to the causal effect on the regulation of ectopic-fat, which warrants further experimental validation. PMID- 29321600 TI - Fis is a global regulator critical for modulation of virulence factor production and pathogenicity of Dickeya zeae. AB - Dickeya zeae is the causal agent of rice foot rot disease, which has recently become a great threat to rice planting countries and regions. The pathogen produces a family of phytotoxins named zeamines that is critical for bacterial virulence, but little is known about the signaling pathways and regulatory mechanisms that govern zeamine production. In this study, we showed that a conserved transcriptional regulator Fis is involved in the regulation of zeamine production in D. zeae strain EC1. Deletion mutants were markedly attenuated in the virulence against rice seed germination. Transcriptome and phenotype analyses showed that Fis is a potent global transcriptional regulator modulating various virulence traits, including production of extracellular enzymes and exopolysaccharides, swimming and swarming motility, biofilm formation and cell aggregation. DNA gel retardation analysis showed that Fis directly regulates the transcription of key virulence genes and the genes encoding Vfm quorum sensing system through DNA/protein interaction. Our findings unveil a key regulator associated with the virulence of D. zeae EC1, and present useful clues for further elucidation of the regulatory complex and signaling pathways which govern the virulence of this important pathogen. PMID- 29321601 TI - CRISPR/Cas9-mediated gene modification and gene knock out in the human-infective parasite Trichomonas vaginalis. AB - The sexually-transmitted parasite Trichomonas vaginalis infects ~1/4 billion people worldwide. Despite its prevalence and myriad adverse outcomes of infection, the mechanisms underlying T. vaginalis pathogenesis are poorly understood. Genetic manipulation of this single-celled eukaryote has been hindered by challenges presented by its complex, repetitive genome and inefficient methods for introducing DNA (i.e. transfection) into the parasite. Here, we have developed methods to increase transfection efficiency using nucleofection, with the goal of efficiently introducing multiple DNA elements into a single T. vaginalis cell. We then created DNA constructs required to express several components essential to drive CRISPR/Cas9-mediated DNA modification: guide RNA (gRNA), the Cas9 endonuclease, short oligonucleotides and large, linearized DNA templates. Using these technical advances, we have established CRISPR/Cas9-mediated repair of mutations in genes contained on circular DNA plasmids harbored by the parasite. We also engineered CRISPR/Cas9 directed homologous recombination to delete (i.e. knock out) two non-essential genes within the T. vaginalis genome. This first report of the use of the CRISPR/Cas9 system in T. vaginalis greatly expands the ability to manipulate the genome of this pathogen and sets the stage for testing of the role of specific genes in many biological processes. PMID- 29321602 TI - Multifunctional microfluidic chip for optical nanoprobe based RNA detection - application to Chronic Myeloid Leukemia. AB - Many diseases have their treatment options narrowed and end up being fatal if detected during later stages. As a consequence, point-of-care devices have an increasing importance for routine screening applications in the health sector due to their portability, fast analyses and decreased cost. For that purpose, a multifunctional chip was developed and tested using gold nanoprobes to perform RNA optical detection inside a microfluidic chip without the need of molecular amplification steps. As a proof-of-concept, this device was used for the rapid detection of chronic myeloid leukemia, a hemato-oncological disease that would benefit from early stage diagnostics and screening tests. The chip passively mixed target RNA from samples, gold nanoprobes and saline solution to infer a result from their final colorimetric properties. An optical fiber network was used to evaluate its transmitted spectra inside the chip. Trials provided accurate output results within 3 min, yielding signal-to-noise ratios up to 9 dB. When compared to actual state-of-art screening techniques of chronic myeloid leukemia, these results were, at microscale, at least 10 times faster than the reported detection methods for chronic myeloid leukemia. Concerning point-of-care applications, this work paves the way for other new and more complex versions of optical based genosensors. PMID- 29321603 TI - Plasma adiponectin levels and type 2 diabetes risk: a nested case-control study in a Chinese population and an updated meta-analysis. AB - Results from previous prospective studies assessing the relation between adiponectin and type 2 diabetes (T2D) were not entirely consistent, and evidence in Chinese population is scarce. Moreover, the last meta-analysis did not examine the impact of metabolic variables on the adiponectin-T2D association. Therefore, we prospectively evaluated the adiponectin-T2D association among 571 T2D cases and 571 age-sex-matched controls nested within the Singapore Chinese Health Study (SCHS). Furthermore, we conducted an updated meta-analysis by searching prospective studies on Pubmed till September 2016. In the SCHS, the odds ratio of T2D, comparing the highest versus lowest tertile of adiponectin levels, was 0.30 (95% confidence interval: 0.17, 0.55) in the fully-adjusted model. The relation was stronger among heavier participants (body mass index >=23 kg/m2) compared to their leaner counterparts (P for interaction = 0.041). In a meta-analysis of 34 prospective studies, the pooled relative risk was 0.53 (95% confidence interval: 0.47, 0.61) comparing the extreme tertiles of adiponectin with moderate heterogeneity (I 2 = 48.7%, P = 0.001). The adiponectin-T2D association remained unchanged after adjusting for inflammation and dyslipidemia markers, but substantially attenuated with adjustment for insulin sensitivity and/or glycaemia markers. Overall evidence indicates that higher adiponectin levels are associated with decreased T2D risk in Chinese and other populations. PMID- 29321604 TI - Trophic transfer and individual impact of nano-sized polystyrene in a four species freshwater food chain. AB - This study investigated the trophic transfer, individual impact, and embryonic uptake of fluorescent nano-sized polystyrene plastics (nanoplastics) through direct exposure in a freshwater ecosystem, with a food chain containing four species. The alga Chlamydomonas reinhardtii, water flea Daphnia magna, secondary consumer fish Oryzias sinensis, and end-consumer fish Zacco temminckii were used as test species. In the trophic transfer test, algae were exposed to 50 mg/L nanoplastics, defined as plastic particles <100 nm in diameter; higher trophic level organisms were exposed through their diet. In the direct exposure test, each species was directly exposed to nanoplastics. Microscopic analysis confirmed that the nanoplastics adhered to the surface of the primary producer and were present in the digestive organs of the higher trophic level species. Nanoplastics also negatively affected fish activity, as measured by distance traveled and area covered, and induced histopathological changes in the livers of fish that were directly exposed. Additionally, nanoplastics penetrated the embryo walls and were present in the yolk sac of hatched juveniles. These observations clearly show that nanoplastics are easily transferred through food chain, albeit because of high experimental dosages. Nevertheless, the results strongly point to the potential health risks of nanoplastic exposure. PMID- 29321606 TI - Reevaluation of the Dentary Structures of Caenagnathid Oviraptorosaurs (Dinosauria, Theropoda). AB - Among the characters of caenagnathid oviraptorosaurians, the lateral occlusal grooves and ridges on the occlusal surface of the jaw bones often receive special attention. Recent studies demonstrated that ontogenetic edentulism is present in caenagnathids, and therefore the lateral occlusal grooves and ridges are vestigial alveoli and interdental septa, respectively. In the present paper, the dentary structures of caenagnathids were reevaluated based on CT images of Caenagnathiasia sp. IVPP V20377. Several previously unknown features including crateriform vestigial alveoli, the morphology of the dentary interior hollow space, and the paired blind tubes beneath the dentary symphyseal shelf are recognized. Current lines of evidence suggest different jaw bone morphologies are likely produced by various tooth reduction patterns, which indicates ontogenetic dietary shift, if once presented in caenagnathids and Sapeornis, may have been different from the condition seen in Limusaurus. The 3D images of dentary interior spaces suggest that while tooth reduction progresses, the empty alveoli are partially modified into structures accommodating blood vessels that nourish the rhamphotheca, probably representing a functional compensation for the insufficient blood supply in toothed jaw bones. PMID- 29321605 TI - Trends and Patterns of Cancer Mortality in North China (Hebei Province), 1973 2013. AB - Little was known about the cancer burden for the last 40 years in middle-income province in China. This study aimed to assess the overall, cause-specific mortality cancer trend and disability-adjusted life years (DALYs) between 1973 1975 and 2011-2013 in North China (Hebei Province). The collected data were stratified by 5-year age groups, gender and different types of cancer. We found that mortality from cancer showed an upward trend in the 1973-2013. The mortality rate of 0-79 year-old in 2011-2013 was lower than that in other periods. It was about two times higher for the 80+ age group than it was in 1973-1975. The cancer pattern in 4 periods presented differently. Esophagus cancer ranked the first in 1973-1975, whereas in 2011-2013, the most common cancer was lung cancer. DALYs also showed an increasing cancer burden in Hebei Province. This study is the first to analyze cancer burden for the last 40 years in a middle-income province. It could provide a baseline for assessment of effectiveness of cancer prevention and control. Esophagus cancer had a significant declining trend because of endoscopy screening program. Enhancing screening programs in those aged 40-69 year-old is necessary for reducing the cancer burden. PMID- 29321607 TI - Responses in shoot elongation, carbohydrate utilization and growth recovery of an invasive species to submergence at different water temperatures. AB - Widely distributed amphibious exotic plant species may respond plastically to water temperatures when submerged. Alternanthera philoxeroides, a highly flood tolerant species, originates from tropical regions and has successfully invaded temperate regions. The wide distribution of this species suggests it can respond to flooding at different water temperatures. In this study, the plastic responses of A. philoxeroides plants to submergence at water temperatures of 10 degrees C, 20 degrees C and 30 degrees C were investigated. The A. philoxeroides plants had large pools of non-structural carbohydrates, which were readily mobilized upon submergence. Submergence hindered biomass accumulation and decreased the carbohydrate content level and respiration rate (P < 0.05). Water temperature had remarkable effects on shoot elongation, carbohydrate utilization and recovery growth. With decreasing water temperature, the respiration rate was lower and carbohydrate content decreased more slowly, but the post-submergence biomass accumulation was faster (P < 0.05), indicating a beneficial effect of low water temperature for recovery. However, high water temperatures accelerated shoot elongation (P < 0.05), which benefitted the submerged plants more if contact with air was restored. These results suggest that the species can respond to different water temperatures plastically, which may provide hints for its invasion success in regions with diverse climates. PMID- 29321608 TI - The effect of maternal vitamin D deficiency during pregnancy on body fat and adipogenesis in rat offspring. AB - To evaluate the effects of maternal vitamin D deficiency on body fat and adipogenesis in offspring rats, and explore the potential mechanism, we constructed a vitamin D deficient rat model and performed metabolic activity evaluation, body fat monitoring, biochemical analysis, adipogenesis assay, methylation microarray and RNA-seq for their offspring rats. We found the weight of vitamin D deficient (VDD) offspring was gradually higher than that of control (CLT) offspring, and the difference was significant since 10 weeks old. When compared with CTL offspring, the 24 h heat production, peak blood glucose, adipose tissue volume and blood lipid indexes were significantly increased in VDD offspring at 14 weeks old. Moreover, a significant increase in proliferation rate and number of lipid droplets for pre-adipocytes was also observed in VDD offspring group. DNA methylation profiling showed that compared to CTL group, 608 promoters and 204 CpG islands were differentially methylated in the VDD group, involving 305 genes. When combined with the results of RNA-seq, 141 genes of the methylated genes were differentially expressed. In conclusion, vitamin D deficiency during pregnancy may promote the proliferation and differentiation of pre-adipocytes, which may be associated with methylation alterations of genes, ultimately leading to offspring obesity. PMID- 29321609 TI - Complex Formation via Hydrogen bonding between Rhodamine B and Montmorillonite in Aqueous Solution. AB - This study investigates the adsorption mechanism differences among four nitrogenous dyes, sulforhodamine G (SRG), uncharged/deprotonated rhodamine B (RhB), orange II (Or II) and methyl blue (MB) by montmorillonite (MMT). MMT adsorption capacity for cationic MB was three times that of uncharged RhB and anionic SRG, while anionic Or II was not absorbed. Colloidal MMT particles have two types of surfaces, basal and edge, that interact with nitrogenous dyes very differently. The surface acidity of MMT was characterized with the pyridine adsorption method using in-situ diffuse reflectance infrared Fourier transform spectroscopy (in-situ DRIFTS). Adsorption of cationic MB was compared with the adsorption of RhB. In-situ attenuated total reflectance Fourier transform infrared (in-situ ATR-FTIR) spectroscopy indicated that a nitrogen atom on RhB complexes with a metal hydroxyl on an MMT edge through a water bridge. The highly polar edge hydroxyl is important to hydrogen bond formation. Cation ion exchange and washing experiments, as well as studies on the effect of temperature, pH and ionic strength on adsorption further clarified the adsorption mechanism. Our results provide insights into the effects of molecular structure on the adsorption of nitrogenous dyes by clay and the role of edge surfaces in the adsorption process. PMID- 29321610 TI - Physiological effects of short acute UVB treatments in Chenopodium quinoa Willd. AB - Increased ultraviolet B (UVB) radiation due to global change can affect plant growth and metabolism. Here, we evaluated the capacity of quinoa to resist under short acute UVB irradiation. Quinoa was daily exposed for 30 or 60 min to 1.69 W m-2 UVB. The results showed that 30 min exposure in 9 d-course did not cause severe alterations on photosynthetic pigments and flavonoids, but a significant increase of antioxidant capacity was observed. Otherwise, 60 min UVB in 5 d course reduced almost all these parameters except for an increase in the de epoxidation of xanthophyll cycle pigments and led to the death of the plants. Further studies of gas exchange and fluorescence measurements showed that 30 min UVB dramatically decrease stomatal conductance, probably associated to reactive oxygen species (ROS) production. Inhibition of photosynthetic electron transport was also observed, which could be a response to reduce ROS. Otherwise, irreversible damage to the photosynthetic apparatus was found with 60 min UVB probably due to severe ROS overproduction that decompensates the redox balance inducing UVB non-specific signaling. Moreover, 60 min UVB compromised Rubisco carboxylase activity and photosynthetic electron transport. Overall, these data suggest that quinoa modulates different response mechanisms depending on the UVB irradiation dosage. PMID- 29321611 TI - Acetaldehyde inhibits retinoic acid biosynthesis to mediate alcohol teratogenicity. AB - Alcohol consumption during pregnancy induces Fetal Alcohol Spectrum Disorder (FASD), which has been proposed to arise from competitive inhibition of retinoic acid (RA) biosynthesis. We provide biochemical and developmental evidence identifying acetaldehyde as responsible for this inhibition. In the embryo, RA production by RALDH2 (ALDH1A2), the main retinaldehyde dehydrogenase expressed at that stage, is inhibited by ethanol exposure. Pharmacological inhibition of the embryonic alcohol dehydrogenase activity, prevents the oxidation of ethanol to acetaldehyde that in turn functions as a RALDH2 inhibitor. Acetaldehyde-mediated reduction of RA can be rescued by RALDH2 or retinaldehyde supplementation. Enzymatic kinetic analysis of human RALDH2 shows a preference for acetaldehyde as a substrate over retinaldehyde. RA production by hRALDH2 is efficiently inhibited by acetaldehyde but not by ethanol itself. We conclude that acetaldehyde is the teratogenic derivative of ethanol responsible for the reduction in RA signaling and induction of the developmental malformations characteristic of FASD. This competitive mechanism will affect tissues requiring RA signaling when exposed to ethanol throughout life. PMID- 29321612 TI - Blimp-1/PRDM1 is a critical regulator of Type III Interferon responses in mammary epithelial cells. AB - The transcriptional repressor Blimp-1 originally cloned as a silencer of type I interferon (IFN)-beta gene expression controls cell fate decisions in multiple tissue contexts. Conditional inactivation in the mammary gland was recently shown to disrupt epithelial cell architecture. Here we report that Blimp-1 regulates expression of viral defense, IFN signaling and MHC class I pathways, and directly targets the transcriptional activator Stat1. Blimp-1 functional loss in 3D cultures of mammary epithelial cells (MECs) results in accumulation of dsRNA and expression of type III IFN-lambda. Cultures treated with IFN lambda similarly display defective lumen formation. These results demonstrate that type III IFN lambda profoundly influences the behavior of MECs and identify Blimp-1 as a critical regulator of IFN signaling cascades. PMID- 29321613 TI - Evaluation of in vivo digital root reconstruction based on anatomical characteristics of the periodontal ligament using cone beam computed tomography. AB - This study's aim was to develop and validate an approach to automatically extract and reconstruct three-dimensional (3D) digital root models from in vivo teeth based on the anatomical characteristics of the periodontal ligament using cone beam computed tomography (CBCT) data. Prior to undergoing dental extractions for orthodontic purposes, the CBCT data of each study participant were collected and imported into Mimics software to reconstruct 3D in vivo digital root models (test models). Twenty roots of 17 teeth extracted from the study's participants were scanned using a dental scanner to obtain 3D in vitro digital root models (reference models). The 3D morphological deviation between the reference and test models was compared; the 3D size of the bucco-lingual, mesio-distal, and root length dimensions were calculated. This approach achieved an average 3D morphological deviation of 0.21 mm, and the average size error in the bucco lingual, mesio-distal, and root length dimensions were -0.35 mm, -0.17 mm, and 0.47 mm, respectively. This new automatic extraction approach rapidly and accurately reconstructs 3D in vivo root models with detailed morphological information, and has the potential to improve diagnostic and treatment work flow in orthodontic clinics, as well as in other areas of dentistry. PMID- 29321614 TI - Effects on metabolic parameters in young rats born with low birth weight after exposure to a mixture of pesticides. AB - Pesticide exposure during fetal life can lead to low birth weight and is commonly observed in reproductive toxicology studies. Associations have also been found in low birth weight babies born from pesticide-exposed gardeners. Since low birth weight is also linked to metabolic disorders, it can be speculated that early life exposure to pesticides could increase the risk of becoming obese or developing diabetes later in life. We have analyzed potential long-term effects of gestational and lactational exposure to a low dose mixture of six pesticides that individually can cause low birth weight: Cyromazine, MCPB, Pirimicarb, Quinoclamine, Thiram, and Ziram. Exposed male offspring, who were smaller than controls, displayed some degree of catch-up growth. Insulin and glucagon regulation was not significantly affected, and analyses of liver and pancreas did not reveal obvious histopathological effects. Efforts towards identifying potential biomarkers of metabolic disease-risk did not result in any strong candidates, albeit leptin levels were altered in exposed animals. In fat tissues, the key genes Lep, Nmb and Nmbr were altered in high dosed offspring, and were differentially expressed between sexes. Our results suggest that early-life exposure to pesticides may contribute to the development of metabolic disorders later in life. PMID- 29321616 TI - Defocus and magnification dependent variation of TEM image astigmatism. AB - Daily alignment of the microscope is a prerequisite to reaching optimal lens conditions for high resolution imaging in cryo-EM. In this study, we have investigated how image astigmatism varies with the imaging conditions (e.g. defocus, magnification). We have found that the large change of defocus/magnification between visual correction of astigmatism and subsequent data collection tasks, or during data collection, will inevitably result in undesirable astigmatism in the final images. The dependence of astigmatism on the imaging conditions varies significantly from time to time, so that it cannot be reliably compensated by pre-calibration of the microscope. Based on these findings, we recommend that the same magnification and the median defocus of the intended defocus range for final data collection are used in the objective lens astigmatism correction task during microscope alignment and in the focus mode of the iterative low-dose imaging. It is also desirable to develop a fast, accurate method that can perform dynamic correction of the astigmatism for different intended defocuses during automated imaging. Our findings also suggest that the slope of astigmatism changes caused by varying defocuses can be used as a convenient measurement of objective lens rotation symmetry and potentially an acceptance test of new electron microscopes. PMID- 29321617 TI - Alleviation of drought stress in Phyllostachys edulis by N and P application. AB - The aim of this study was to explore whether nutrition supply can improve the drought tolerance of Moso bamboo under dry conditions. One-year-old seedlings were exposed to two soil water content levels [wellwatered, 70 +/- 5% soil relative-water-content (SRWC) and drought stress, 30 +/- 5% SRWC] and four combinations of nitrogen (N) and phosphorus (P) supply (low-N, low-P, LNLP; low N, high-P, LNHP; high-N, high-P, HNHP; and high-N, low-P, HNLP) for four months. Plant growth, photosynthesis, chlorophyll fluorescence, water use efficiency and cell membrane stability were determined. The results showed that drought stress significantly decreased total biomass, net-photosynthesis (Pn), stomatal conductance (gs), leaf-chlorophyll-content (Chlleaf), PSII-quantum-yield (PhiPSII), maximum-quantum-yield-of-photosynthesis (Fv/Fm), photochemical quenching-coefficient (qP), leaf-instantaneous-water-use efficiency (WUEi), relative-water-content (RWC), photosynthetic-N-use-efficiency (PNUE), and photosynthetic-P-use-efficiency (PPUE). N and P application was found to be effective in enhancing the concentration of leaf N, gs, and Pn while reducing the production of reactive oxygen species under both water regimes. Under LNHP, HNHP and HNLP treatments, the decreases in total biomass, Pn, Chlleaf and Fv/Fm of drought-stressed were less evident than the decreases under LNLP. The study suggests that nutrient application has the potential to mitigate the drastic effects of water stress on Moso bamboo by improving photosynthetic rate, water use efficiency, and increasing of membrane integrity. PMID- 29321615 TI - Functional Isolation of Tumor-Initiating Cells using Microfluidic-Based Migration Identifies Phosphatidylserine Decarboxylase as a Key Regulator. AB - Isolation of tumor-initiating cells currently relies on markers that do not reflect essential biologic functions of these cells. We proposed to overcome this limitation by isolating tumor-initiating cells based on enhanced migration, a function tightly linked to tumor-initiating potential through epithelial-to mesenchymal transition (EMT). We developed a high-throughput microfluidic migration platform with automated cell tracking software and facile recovery of cells for downstream functional and genetic analyses. Using this device, we isolated a small subpopulation of migratory cells with significantly greater tumor formation and metastasis in mouse models. Whole transcriptome sequencing of migratory versus non-migratory cells from two metastatic breast cancer cell lines revealed a unique set of genes as key regulators of tumor-initiating cells. We focused on phosphatidylserine decarboxylase (PISD), a gene downregulated by 8 fold in migratory cells. Breast cancer cells overexpressing PISD exhibited reduced tumor-initiating potential in a high-throughput microfluidic mammosphere device and mouse xenograft model. PISD regulated multiple aspects of mitochondria, highlighting mitochondrial functions as therapeutic targets against cancer stem cells. This research establishes not only a novel microfluidic technology for functional isolation of tumor-initiating cells regardless of cancer type, but also a new approach to identify essential regulators of these cells as targets for drug development. PMID- 29321618 TI - Uncoupled mitochondria quickly shorten along their long axis to form indented spheroids, instead of rings, in a fission-independent manner. AB - Loss of mitochondrial membrane potential (DeltaPsim) triggers dramatic structural changes in mitochondria from a tubular to globular shape, referred to as mitochondrial fragmentation; the resulting globular mitochondria are called swelled or ring/doughnut mitochondria. We evaluated the early period of structural changes during the DeltaPsim loss-induced transformation after carbonyl cyanide m-chlorophenyl hydrazine (CCCP) administration using a newly developed correlative microscopic method combined with fluorescence microscopic live imaging and volume electron microscopy. We found that most mitochondria changed from a tubular shape to a globular shape without fusion or fission and typically showed ring shapes within 10 min after CCCP exposure. In contrast, most ring mitochondria did not have a true through hole; rather, they had various indents, and 47% showed stomatocyte shapes with vase-shaped cavities, which is the most stable physical structure without any structural support if the long tubular shape shortens into a sphere. Our results suggested that loss of DeltaPsim triggered collapse of mitochondrial structural support mechanisms. PMID- 29321619 TI - Ultraviolet-B enhances the resistance of multiple plant species to lepidopteran insect herbivory through the jasmonic acid pathway. AB - Land plants protect themselves from ultraviolet-B (UV-B) by accumulating UV absorbing metabolites, which may also function as anti-insect toxins. Previous studies have shown that UV-B enhances the resistance of different plant species to pierce-sucking pests; however, whether and how UV-B influences plant defense against chewing caterpillars are not well understood. Here we show that UV-B treatment increased Spodoptera litura herbivory-induced jasmonic acid (JA) production in Arabidopsis and thereby Arabidopsis exhibited elevated resistance to S. litura. Using mutants impaired in the biosynthesis of JA and the defensive metabolites glucosinolates (GSs), we show that the UV-B-induced resistance to S. litura is dependent on the JA-regulated GSs and an unidentified anti-insect metabolite(s). Similarly, UV-B treatment also enhanced the levels of JA isoleucine conjugate and defense-related secondary metabolites in tobacco, rice, and maize after these plants were treated with simulated herbivory of lepidopteran insects; consistently, these plants showed elevated resistance to insect larvae. Using transgenic plants impaired in JA biosynthesis or signaling, we further demonstrate that the UV-B-enhanced defense responses also require the JA pathway in tobacco and rice. Our findings reveal a likely conserved JA dependent mechanism by which UV-B enhances plant defense against lepidopteran insects. PMID- 29321620 TI - Lack of PINK1 alters glia innate immune responses and enhances inflammation induced, nitric oxide-mediated neuron death. AB - Neuroinflammation is involved in the pathogenesis of Parkinson's disease (PD) and other neurodegenerative disorders. We show that lack of PINK1- a mitochondrial kinase linked to recessive familial PD - leads to glia type-specific abnormalities of innate immunity. PINK1 loss enhances LPS/IFN-gamma stimulated pro-inflammatory phenotypes of mixed astrocytes/microglia (increased iNOS, nitric oxide and COX-2, reduced IL-10) and pure astrocytes (increased iNOS, nitric oxide, TNF-alpha and IL-1beta), while attenuating expression of both pro inflammatory (TNF-alpha, IL-1beta) and anti-inflammatory (IL-10) cytokines in microglia. These abnormalities are associated with increased inflammation-induced NF-kappaB signaling in astrocytes, and cause enhanced death of neurons co cultured with inflamed PINK1 -/- mixed glia and neuroblastoma cells exposed to conditioned medium from LPS/IFN-gamma treated PINK1 -/- mixed glia. Neuroblastoma cell death is prevented with an iNOS inhibitor, implicating increased nitric oxide production as the cause for enhanced death. Finally, we show for the first time that lack of a recessive PD gene (PINK1) increases alpha-Synuclein-induced nitric oxide production in all glia types (mixed glia, astrocytes and microglia). Our results describe a novel pathogenic mechanism in recessive PD, where PINK1 deficiency may increase neuron death via exacerbation of inflammatory stimuli induced nitric oxide production and abnormal innate immune responses in glia cells. PMID- 29321621 TI - Functional Brain Network Mechanism of Hypersensitivity in Chronic Pain. AB - Fibromyalgia (FM) is a chronic widespread pain condition characterized by augmented multi-modal sensory sensitivity. Although the mechanisms underlying this sensitivity are thought to involve an imbalance in excitatory and inhibitory activity throughout the brain, the underlying neural network properties associated with hypersensitivity to pain stimuli are largely unknown. In network science, explosive synchronization (ES) was introduced as a mechanism of hypersensitivity in diverse biological and physical systems that display explosive and global propagations with small perturbations. We hypothesized that ES may also be a mechanism of the hypersensitivity in FM brains. To test this hypothesis, we analyzed resting state electroencephalogram (EEG) of 10 FM patients. First, we examined theoretically well-known ES conditions within functional brain networks reconstructed from EEG, then tested whether a brain network model with ES conditions identified in the EEG data is sensitive to an external perturbation. We demonstrate for the first time that the FM brain displays characteristics of ES conditions, and that these factors significantly correlate with chronic pain intensity. The simulation data support the conclusion that networks with ES conditions are more sensitive to perturbation compared to non-ES network. The model and empirical data analysis provide convergent evidence that ES may be a network mechanism of FM hypersensitivity. PMID- 29321623 TI - A dual layer broadband radar absorber to minimize electromagnetic interference in radomes. AB - A thin broadband dual-layer radar absorber based on periodic Frequency Selective Surfaces (FSS) to tackle Electromagnetic Interference (EMI) in radomes is presented in this article. The proposed structure consists of periodically arranged metallic patterns printed on two dielectric substrates separated by an optimized air gap. Under normal incidence, the proposed structure exhibits at least 89.7% of absorption in the whole band of 4.8 GHz to 11.1 GHz for both Transverse Electric (TE) and Magnetic (TM) polarizations. For oblique incidences, a very slight decrease in the bandwidth is observed in the upper frequency band until 30 degrees and the absorption remains very interesting for higher incidences. The structure is lambda/7.2 (lambda is the wavelength in free space) thin compared to the center frequency (8.2 GHz). In addition, parametric studies have demonstrated that at least 90% of absorption can be produced with our structure by adjusting the thicknesses of the dielectric substrates. Another issue that is presented and discussed in this paper is a new approach for evaluating the performance of absorbers. In fact, studies show that the absorber can compete with other recent broadband absorbers. After fabricating the structure, the measurements were found to be in good agreement with the simulation results. PMID- 29321622 TI - Evaluation of a developmental hierarchy for breast cancer cells to assess risk based patient selection for targeted treatment. AB - This study proposes that a novel developmental hierarchy of breast cancer (BC) cells (BCCs) could predict treatment response and outcome. The continued challenge to treat BC requires stratification of BCCs into distinct subsets. This would provide insights on how BCCs evade treatment and adapt dormancy for decades. We selected three subsets, based on the relative expression of octamer binding transcription factor 4 A (Oct4A) and then analysed each with Affymetrix gene chip. Oct4A is a stem cell gene and would separate subsets based on maturation. Data analyses and gene validation identified three membrane proteins, TMEM98, GPR64 and FAT4. BCCs from cell lines and blood from BC patients were analysed for these three membrane proteins by flow cytometry, along with known markers of cancer stem cells (CSCs), CD44, CD24 and Oct4, aldehyde dehydrogenase 1 (ALDH1) activity and telomere length. A novel working hierarchy of BCCs was established with the most immature subset as CSCs. This group was further subdivided into long- and short-term CSCs. Analyses of 20 post-treatment blood indicated that circulating CSCs and early BC progenitors may be associated with recurrence or early death. These results suggest that the novel hierarchy may predict treatment response and prognosis. PMID- 29321624 TI - Strong trans-Pacific break and local conservation units in the Galapagos shark (Carcharhinus galapagensis) revealed by genome-wide cytonuclear markers. AB - The application of genome-wide cytonuclear molecular data to identify management and adaptive units at various spatio-temporal levels is particularly important for overharvested large predatory organisms, often characterized by smaller, localized populations. Despite being "near threatened", current understanding of habitat use and population structure of Carcharhinus galapagensis is limited to specific areas within its distribution. We evaluated population structure and connectivity across the Pacific Ocean using genome-wide single-nucleotide polymorphisms (~7200 SNPs) and mitochondrial control region sequences (945 bp) for 229 individuals. Neutral SNPs defined at least two genetically discrete geographic groups: an East Tropical Pacific (Mexico, east and west Galapagos Islands), and another central-west Pacific (Lord Howe Island, Middleton Reef, Norfolk Island, Elizabeth Reef, Kermadec, Hawaii and Southern Africa). More fine grade population structure was suggested using outlier SNPs: west Pacific, Hawaii, Mexico, and Galapagos. Consistently, mtDNA pairwise PhiST defined three regional stocks: east, central and west Pacific. Compared to neutral SNPs (FST = 0.023-0.035), mtDNA exhibited more divergence (PhiST = 0.258-0.539) and high overall genetic diversity (h = 0.794 +/- 0.014; pi = 0.004 +/- 0.000), consistent with the longstanding eastern Pacific barrier between the east and central-west Pacific. Hawaiian and Southern African populations group within the west Pacific cluster. Effective population sizes were moderate/high for east/west populations (738 and 3421, respectively). Insights into the biology, connectivity, genetic diversity, and population demographics informs for improved conservation of this species, by delineating three to four conservation units across their Pacific distribution. Implementing such conservation management may be challenging, but is necessary to achieve long-term population resilience at basin and regional scales. PMID- 29321625 TI - Cerebellar grey matter modifications in lower limb amputees not using prosthesis. AB - Plastic brain changes following peripheral deafferentation, in particular those following limb amputations, are well-documented, with significant reduction of grey matter (GM) in the sensory-motor cerebral areas representing the amputated limb. However, few studies have investigated the role played by the use of a prosthesis in these structural brain modifications. Here we hypothesized that using a functional prosthesis that allows individuals to perform actions may reduce grey matter reduction. We investigated the brain structural reorganization following lower limb amputation by using a Voxel Based Morphometry (VBM) analysis of structural magnetic resonance imaging (MRI) in 8 right-handed individuals with lower limb amputation (LLA) fitted with prostheses (LLAwp), compared to 6 LLA who had never used a prosthesis (LLAnp). 14 age-matched healthy controls were also enrolled (HC). We did not find any significant effect when comparing LLAwp and HC. However we found a decreased GM volume in the bilateral cerebellum in LLAnp compared with HC. These results suggest that prosthesis use prevents GM decrease in the cerebellum after lower limb amputation. PMID- 29321626 TI - Routes to Chaos Induced by a Discontinuous Resetting Process in a Hybrid Spiking Neuron Model. AB - Several hybrid spiking neuron models combining continuous spike generation mechanisms and discontinuous resetting processes following spiking have been proposed. The Izhikevich neuron model, for example, can reproduce many spiking patterns. This model clearly possesses various types of bifurcations and routes to chaos under the effect of a state-dependent jump in the resetting process. In this study, we focus further on the relation between chaotic behaviour and the state-dependent jump, approaching the subject by comparing spiking neuron model versions with and without the resetting process. We first adopt a continuous two dimensional spiking neuron model in which the orbit in the spiking state does not exhibit divergent behaviour. We then insert the resetting process into the model. An evaluation using the Lyapunov exponent with a saltation matrix and a characteristic multiplier of the Poincar'e map reveals that two types of chaotic behaviour (i.e. bursting chaotic spikes and near-period-two chaotic spikes) are induced by the resetting process. In addition, we confirm that this chaotic bursting state is generated from the periodic spiking state because of the slow- and fast-scale dynamics that arise when jumping to the hyperpolarization and depolarization regions, respectively. PMID- 29321627 TI - Publisher Correction: A cdk1 gradient guides surface contraction waves in oocytes. AB - A Supplementary Information file from a different paper was inadvertently published with the original version of this Article. This file was replaced with the correct Supplementary Information file on 24 October 2017. PMID- 29321628 TI - Realizing Mitigation Efficiency of European Commercial Forests by Climate Smart Forestry. AB - European temperate and boreal forests sequester up to 12% of Europe's annual carbon emissions. Forest carbon density can be manipulated through management to maximize its climate mitigation potential, and fast-growing tree species may contribute the most to Climate Smart Forestry (CSF) compared to slow-growing hardwoods. This type of CSF takes into account not only forest resource potentials in sequestering carbon, but also the economic impact of regional forest products and discounts both variables over time. We used the process-based forest model 4 C to simulate European commercial forests' growth conditions and coupled it with an optimization algorithm to simulate the implementation of CSF for 18 European countries encompassing 68.3 million ha of forest (42.4% of total EU-28 forest area). We found a European CSF policy that could sequester 7.3-11.1 billion tons of carbon, projected to be worth 103 to 141 billion euros in the 21st century. An efficient CSF policy would allocate carbon sequestration to European countries with a lower wood price, lower labor costs, high harvest costs, or a mixture thereof to increase its economic efficiency. This policy prioritized the allocation of mitigation efforts to northern, eastern and central European countries and favored fast growing conifers Picea abies and Pinus sylvestris to broadleaves Fagus sylvatica and Quercus species. PMID- 29321629 TI - Chiloscyphenol A derived from Chinese liverworts exerts fungicidal action by eliciting both mitochondrial dysfunction and plasma membrane destruction. AB - This study aimed to characterize the antifungal effects of chiloscyphenol A (CA), a natural small molecule isolated from Chinese liverworts, and investigate its mode of action. CA was effective against five tested Candida species with a minimal inhibitory concentration (MIC) of 8-32 MUg/ml and exhibited fungicidal activity against Candida albicans in both the planktonic state and mature biofilms. The in vivo study using Caenorhabditis elegans showed that CA prolonged the survival of C. albicans infected worms. Further investigations revealed that CA resulted in mitochondrial dysfunction as indicated by mtDeltapsi hyperpolarization, increased ATP production and intracellular ROS accumulation, and aggregated distribution of Tom70. In addition, CA caused perturbation of the cell membrane and increased membrane permeability, as demonstrated by specific staining and confocal microscopic and transmission electron microscopy (TEM) observations and by calcein-leakage measurements. This conclusion was further confirmed by the decreased cell size of CA-treated cells via three-dimensional contour-plot analysis using flow cytometry. Taken together, these results suggest that CA exerts fungicidal activity by eliciting both mitochondrial dysfunction and plasma membrane destruction in C. albicans. The elucidated mechanism supports the potential application of CA against clinical fungal infections. PMID- 29321630 TI - Engineered mesenchymal stem-cell-sheets patches prevents postoperative pancreatic leakage in a rat model. AB - Post-operative pancreatic fistula (POPF) following pancreatic resection is a life threatening surgical complication. Cell sheets were prepared and harvested using temperature-responsive culture dishes and transplanted as patches to seal POPF. Two different mesenchymal stem cell (MSC) sheets were compared in terms of the preventative ability for pancreatic leakage in a rat model. Both rat adipose derived stem cell (rADSC) and bone marrow-derived stem cell (rBMSC) sheets were transplanted. Those rADSC and rBMSC sheets are created without enzymes and thus maintained their cell-cell junctions and adhesion proteins with intact fibronectin on the basal side, as well as characteristics of MSCs. The rats with post-pancreatectomy rADSC- or rBMSC-sheet patches had significantly decreased abdominal fluid leakage compared with the control group, demonstrated by MR image analysis and measurement of the volume of abdominal fluid. Amylase level was significantly lower in the rats with rADSC-sheet and rBMSC-sheet patches compared with the control groups. The rADSC sheet patches had increased adhesive and immune-cytokine profiles (ICAM-1, L-selectin, TIMP-1), and the rBMSC sheets had reduced immune reactions compared to the control. This is first project looking at the feasibility of tissue engineering therapy using MSC-sheets as tissue patches preventing leakage of abdominal fluid caused by POPF. PMID- 29321631 TI - Stability and anisotropy of (FexNi1-x)2O under high pressure and implications in Earth's and super-Earths' core. AB - Oxygen is thought to be an important light element in Earth's core but the amount of oxygen in Earth's core remains elusive. In addition, iron-rich iron oxides are of great interest and significance in the field of geoscience and condensed matter physics. Here, static calculations based on density functional theory demonstrate that I4/mmm-Fe2O is dynamically and mechanically stable and becomes energetically favorable with respect to the assemblage of hcp-Fe and [Formula: see text]-FeO above 270 GPa, which indicates that I4/mmm-Fe2O can be a strong candidate phase for stable iron-rich iron oxides at high pressure, perhaps even at high temperature. The elasticity and anisotropy of I4/mmm-(FexNi1-x)2O at high pressures are also determined. Based on these results, we have derived the upper limit of oxygen to be 4.3 wt% in Earth's lower outer core. On the other hand, I4/mmm-(FexNi1-x)2O with high AV S is likely to exist in a super-Earth's or an ocean planet's solid core causing the locally seismic heterogeneity. Our results not only give some clues to explore and synthesize novel iron-rich iron oxides but also shed light on the fundamental information of oxygen in the planetary core. PMID- 29321632 TI - Genome-wide association study in Asia-adapted tropical maize reveals novel and explored genomic regions for sorghum downy mildew resistance. AB - Globally, downy mildews are among the important foliar diseases of maize that cause significant yield losses. We conducted a genome-wide association study for sorghum downy mildew (SDM; Peronosclerospora sorghi) resistance in a panel of 368 inbred lines adapted to the Asian tropics. High density SNPs from Genotyping-by sequencing were used in GWAS after controlling for population structure and kinship in the panel using a single locus mixed model. The study identified a set of 26 SNPs that were significantly associated with SDM resistance, with Bonferroni corrected P values <= 0.05. Among all the identified SNPs, the minor alleles were found to be favorable to SDM resistance in the mapping panel. Trend regression analysis with 16 independent genetic variants including 12 SNPs and four haplotype blocks identified SNP S2_6154311 on chromosome 2 with P value 2.61E-24 and contributing 26.7% of the phenotypic variation. Six of the SNPs/haplotypes were within the same chromosomal bins as the QTLs for SDM resistance mapped in previous studies. Apart from this, eight novel genomic regions for SDM resistance were identified in this study; they need further validation before being applied in the breeding pipeline. Ten SNPs identified in this study were co-located in reported mildew resistance genes. PMID- 29321634 TI - Navon's classical paradigm concerning local and global processing relates systematically to visual object classification performance. AB - Forty years ago David Navon tried to tackle a central problem in psychology concerning the time course of perceptual processing: Do we first see the details (local level) followed by the overall outlay (global level) or is it rather the other way around? He did this by developing a now classical paradigm involving the presentation of compound stimuli; large letters composed of smaller letters. Despite the usefulness of this paradigm it remains uncertain whether effects found with compound stimuli relate directly to visual object recognition. It does so because compound stimuli are not actual objects but rather formations of elements and because the elements that form the global shape of compound stimuli are not features of the global shape but rather objects in their own right. To examine the relationship between performance on Navon's paradigm and visual object processing we derived two indexes from Navon's paradigm that reflect different aspects of the relationship between global and local processing. We find that individual differences on these indexes can explain a considerable amount of variance in two standard object classification paradigms; object decision and superordinate categorization, suggesting that Navon's paradigm does relate to visual object processing. PMID- 29321633 TI - Olfactory memory is enhanced in mice exposed to extremely low-frequency electromagnetic fields via Wnt/beta-catenin dependent modulation of subventricular zone neurogenesis. AB - Exposure to extremely low-frequency electromagnetic fields (ELFEF) influences the expression of key target genes controlling adult neurogenesis and modulates hippocampus-dependent memory. Here, we assayed whether ELFEF stimulation affects olfactory memory by modulating neurogenesis in the subventricular zone (SVZ) of the lateral ventricle, and investigated the underlying molecular mechanisms. We found that 30 days after the completion of an ELFEF stimulation protocol (1 mT; 50 Hz; 3.5 h/day for 12 days), mice showed enhanced olfactory memory and increased SVZ neurogenesis. These effects were associated with upregulated expression of mRNAs encoding for key regulators of adult neurogenesis and were mainly dependent on the activation of the Wnt pathway. Indeed, ELFEF stimulation increased Wnt3 mRNA expression and nuclear localization of its downstream target beta-catenin. Conversely, inhibition of Wnt3 by Dkk-1 prevented ELFEF-induced upregulation of neurogenic genes and abolished ELFEF's effects on olfactory memory. Collectively, our findings suggest that ELFEF stimulation increases olfactory memory via enhanced Wnt/beta-catenin signaling in the SVZ and point to ELFEF as a promising tool for enhancing SVZ neurogenesis and olfactory function. PMID- 29321635 TI - Pan-genome analysis of the genus Finegoldia identifies two distinct clades, strain-specific heterogeneity, and putative virulence factors. AB - Finegoldia magna, a Gram-positive anaerobic coccus, is an opportunistic pathogen, associated with medical device-related infections. F. magna is the only described species of the genus Finegoldia. We report the analysis of 17 genomes of Finegoldia isolates. Phylogenomic analyses showed that the Finegoldia population can be divided into two distinct clades, with an average nucleotide identity of 90.7%. One clade contains strains of F. magna, whereas the other clade includes more heterogeneous strains, hereafter tentatively named "Finegoldia nericia". The latter species appears to be more abundant in the human microbiome. Surface structure differences between strains of F. magna and "F. nericia" were detected by microscopy. Strain-specific heterogeneity is high and previously identified host-interacting factors are present only in subsets of "F. nericia" and F. magna strains. However, all genomes encode multiple host factor-binding proteins such as albumin-, collagen-, and immunoglobulin-binding proteins, and two to four copies of CAMP (Christie-Atkins-Munch-Petersen) factors; in accordance, most strains show a positive CAMP reaction for co-hemolysis. Our work sheds new light of the genus Finegoldia and its ability to bind host components. Future research should explore if the genomic differences identified here affect the potential of different Finegoldia species and strains to cause opportunistic infections. PMID- 29321636 TI - Tyrosinase-based TLC Autography for anti-melanogenic drug screening. AB - Tyrosinase-based TLC (thin layer chromatography) was developed for screening of anti-melanogenic drugs. In particular, this technique enables researchers to identify melanogenic inhibitor(s) in tested mixtures with the naked eye. In comparison with traditional colorimetric screening assays for tyrosinase inhibitor(s), not only is tyrosinase-based TLC a more cost-effective option (nearly one-tenth the enzyme cost of colorimetric methods) but also is a more sensitive detection approach for kojic acid (KA), a standard anti-melanogenic drug. The detection limit of tyrosinase-based TLC and colorimetric tyrosinase assay for KA was 0.0125 and 1.25 MUg, respectively, demonstrating that the former was 100-fold more sensitive than the latter to determine the tyrosinase inhibitory rate of KA. Furthermore, the results of this method have demonstrated excellent precision by Gage Repeatability and Reproducibility (Gage R&R), with the variation of total Gage R&R being 28.24%. To verify the applicability of tyrosinase-based TLC, this platform was employed to screen melanogenic inhibitor(s) from Ganoderma formosanum extracts and two of all fractions (GFE-EA F4, F5) obtained showed depigmenting activity. It is noteworthy that these two fractions also exerted anti-melanogenesis activity on zebrafish, therefore verifying the credibility of tyrosinase-based TLC. In sum, this technique provides new insight into the discovery of novel melanogenic inhibitor(s). PMID- 29321639 TI - Antiphospholipid syndrome. PMID- 29321637 TI - Detection of American Football Head Impacts Using Biomechanical Features and Support Vector Machine Classification. AB - Accumulation of head impacts may contribute to acute and long-term brain trauma. Wearable sensors can measure impact exposure, yet current sensors do not have validated impact detection methods for accurate exposure monitoring. Here we demonstrate a head impact detection method that can be implemented on a wearable sensor for detecting field football head impacts. Our method incorporates a support vector machine classifier that uses biomechanical features from the time domain and frequency domain, as well as model predictions of head-neck motions. The classifier was trained and validated using instrumented mouthguard data from collegiate football games and practices, with ground truth data labels established from video review. We found that low frequency power spectral density and wavelet transform features (10~30 Hz) were the best performing features. From forward feature selection, fewer than ten features optimized classifier performance, achieving 87.2% sensitivity and 93.2% precision in cross-validation on the collegiate dataset (n = 387), and over 90% sensitivity and precision on an independent youth dataset (n = 32). Accurate head impact detection is essential for studying and monitoring head impact exposure on the field, and the approach in the current paper may help to improve impact detection performance on wearable sensors. PMID- 29321638 TI - Enhanced electrocaloric analysis and energy-storage performance of lanthanum modified lead titanate ceramics for potential solid-state refrigeration applications. AB - The unique properties and great variety of relaxer ferroelectrics make them highly attractive in energy-storage and solid-state refrigeration technologies. In this work, lanthanum modified lead titanate ceramics are prepared and studied. The giant electrocaloric effect in lanthanum modified lead titanate ceramics is revealed for the first time. Large refrigeration efficiency (27.4) and high adiabatic temperature change (1.67 K) are achieved by indirect analysis. Direct measurements of electrocaloric effect show that reversible adiabatic temperature change is also about 1.67 K, which exceeds many electrocaloric effect values in current direct measured electrocaloric studies. Both theoretical calculated and direct measured electrocaloric effects are in good agreements in high temperatures. Temperature and electric field related energy storage properties are also analyzed, maximum energy-storage density and energy-storage efficiency are about 0.31 J/cm3 and 91.2%, respectively. PMID- 29321641 TI - Antiphospholipid syndrome. AB - Antiphospholipid syndrome (APS) is an autoimmune disease characterized by the presence of antiphospholipid antibodies, such as lupus anticoagulant, anticardiolipin antibodies and anti-beta2-glycoprotein 1 antibodies. APS can present with a variety of clinical phenotypes, including thrombosis in the veins, arteries and microvasculature as well as obstetrical complications. The pathophysiological hallmark is thrombosis, but other factors such as complement activation might be important. Prevention of thrombotic manifestations associated with APS includes lifestyle changes and, in individuals at high risk, low-dose aspirin. Prevention and treatment of thrombotic events are dependent mainly on the use of vitamin K antagonists. Immunosuppression and anticomplement therapy have been used anecdotally but have not been adequately tested. Pregnancy morbidity includes unexplained recurrent early miscarriage, fetal death and late obstetrical manifestation such as pre-eclampsia, premature birth or fetal growth restriction associated with placental insufficiency. Current treatment to prevent obstetrical morbidity is based on low-dose aspirin and/or low-molecular-weight heparin and has improved pregnancy outcomes to achieve successful live birth in >70% of pregnancies. Although hydroxychloroquine and pravastatin might further improve pregnancy outcomes, prospective clinical trials are required to confirm these findings. PMID- 29321640 TI - Initial evenness determines diversity and cell density dynamics in synthetic microbial ecosystems. AB - The effect of initial evenness on the temporal trajectory of synthetic communities in comprehensive, low-volume microcosm studies remains unknown. We used flow cytometric fingerprinting and 16S rRNA gene amplicon sequencing to assess the impact of time on community structure in one hundred synthetic ecosystems of fixed richness but varying initial evenness. Both methodologies uncovered a similar reduction in diversity within synthetic communities of medium and high initial evenness classes. However, the results of amplicon sequencing showed that there were no significant differences between and within the communities in all evenness groups at the end of the experiment. Nevertheless, initial evenness significantly impacted the cell density of the community after five medium transfers. Highly even communities retained the highest cell densities at the end of the experiment. The relative abundances of individual species could be associated to particular evenness groups, suggesting that their presence was dependent on the initial evenness of the synthetic community. Our results reveal that using synthetic communities for testing ecological hypotheses requires prior assessment of initial evenness, as it impacts temporal dynamics. PMID- 29321643 TI - Magnetoelectricity of CoFe2O4 and tetragonal phase BiFeO3 nanocomposites prepared by pulsed laser deposition. AB - The coupling between the tetragonal phase (T-phase) of BiFeO3 (BFO) and CoFe2O4 (CFO) in magnetoelectric heterostructures has been studied. Bilayers of CFO and BFO were deposited on (001) LaAlO3 single crystal substrates by pulsed laser deposition. After 30 min of annealing, the CFO top layer exhibited a T-phase-like structure, developing a platform-like morphology with BFO. Magnetic hysteresis loops exhibited a strong thickness effect of the CFO layer on the coercive field, in particular along the out-of-plane direction. Magnetic force microscopy images revealed that the T-phase CFO platform contained multiple magnetic domains, which could be tuned by applying a tip bias. A combination of shape, strain, and exchange coupling effects are used to explain the observations. PMID- 29321642 TI - Profiling of metabolome and bacterial community dynamics in ensiled Medicago sativa inoculated without or with Lactobacillus plantarum or Lactobacillus buchneri. AB - Using gas chromatography mass spectrometry and the PacBio single molecule with real-time sequencing technology (SMRT), we analyzed the detailed metabolomic profiles and microbial community dynamics involved in ensiled Medicago sativa (alfalfa) inoculated without or with the homofermenter Lactobacillus plantarum or heterofermenter Lactobacillus buchneri. Our results revealed that 280 substances and 102 different metabolites were present in ensiled alfalfa. Inoculation of L. buchneri led to remarkable up-accumulation in concentrations of 4-aminobutyric acid, some free amino acids, and polyols in ensiled alfalfa, whereas considerable down-accumulation in cadaverine and succinic acid were observed in L. plantarum inoculated silages. Completely different microbial flora and their successions during ensiling were observed in the control and two types of inoculant-treated silages. Inoculation of the L. plantarum or L. buchneri alters the microbial composition dynamics of the ensiled forage in very different manners. Our study demonstrates that metabolomic profiling analysis provides a deep insight in metabolites in silage. Moreover, the PacBio SMRT method revealed the microbial composition and its succession during the ensiling process at the species level. This provides information regarding the microbial processes underlying silage formation and may contribute to target-based regulation methods to achieve high quality silage production. PMID- 29321646 TI - Continuous-wave Y-band planar BWO with wide tunable bandwidth. AB - A high performance continuous-wave (CW) backward wave oscillator (BWO) with planar slow wave structure (SWS) and sheet electron beam in Y-band is presented in this paper. The mode selection is discussed by studying the dispersion curve of SWSs, distributions of the electric field, and particle-in-cell simulation results, showing that the designed BWO operates in the fundamental mode TM11. The planar SWSs are fabricated by using the UV-LIGA technology with the processing error less than 0.003 mm. The electron gun can provide the 2.5 mm * 0.14 mm sheet electron beam with maximum current density of 57 A/cm2 at the CW mode. Experimental results show that the developed BWO can operate in the fundamental mode TM11 and generate the state-of-art output power of 182 mW at the frequency of 0.3426 THz with a large frequency tuning range from 0.318 THz to 0.359 THz. PMID- 29321645 TI - MRI features predictive of negative surgical margins in patients with HER2 overexpressing breast cancer undergoing breast conservation. AB - Here we develop a tool to predict resectability of HER2+ breast cancer at breast conservation surgery (BCS) utilizing features identified on preoperative breast MRI. We identified patients with HER2+ breast cancer who obtained pre-operative breast MRI and underwent BCS between 2002-2013. From the contoured tumor on pre operative MRI, shape, histogram, and co-occurrence and size zone matrix texture features were extracted. In univariate analysis, Spearman's correlation coefficient (Rs) was used to assess the correlation between each image feature and an endpoint (surgical re-excision). For multivariate modeling, we employed a support vector machine (SVM) method in a manner of leave-one-out cross-validation (LOOCV). Of 109 patients with HER2+breast cancer who underwent BCS, 39% underwent surgical re-excision. 62% had residual cancer at re-excision. In univariate analysis, solidity (Rs = -0.32, p = 0.009) and extent (Rs = -0.29, p = 0.019) were significantly associated with re-excision. Skewness in post-contrast 1, 2, and 3 (Rs = 0.25, p = 0.045; Rs = 0.30, p = 0.015; Rs = 0.28, p = 0.026) and kurtosis in post-contrast 1 (Rs = 0.26, p = 0.035) were also statistically significant. LOOCV-based SVM test achieved 74.4% specificity and 71.4% sensitivity when 21 features were used. Thus, tumor texture, histogram and morphological MRI features may assist surgical planning, encouraging wide margins or mastectomy in patients who may otherwise go on to re-excision. PMID- 29321644 TI - COX-2 induces oncogenic micro RNA miR655 in human breast cancer. AB - We show that Cyclooxygenase-2 over-expression induces an oncogenic microRNA miR655 in human breast cancer cells by activation of EP4. MiR655 expression positively correlated with COX-2 in genetically disparate breast cancer cell lines and increased in all cell lines when grown as spheroids, implicating its link with stem-like cells (SLCs). Ectopic miR655 over-expression in MCF7 and SKBR3 cells resulted in increased proliferation, migration, invasion, spheroid formation and Epithelial to Masenchymal transition (EMT). Conversely, knocking down miR655 in aggressive MCF7-COX2 and SKBR3-COX2 cells reverted these phenotypes. MCF7-miR655 cells displayed upregulated NOTCH/WNT genes; both pathway inhibitors abrogated miR655-induced spheroid formation, linking miR655 with SLC related pathways. MiR655 expression was dependent on EP4 activity and EP4 downstream signaling pathways PI3K/AKT, ERK and NF-kB and led to TGFbeta resistance for Smad3 phosphorylation. Tail vein injection of MCF7-miR655 and SKBR3-miR655 cells in NOD/SCID/GUSB-null mice revealed increased lung colony growth and micrometastases to liver and spleen. MiR655 expression was significantly high in human breast tumors (n = 105) compared to non-tumor tissues (n = 20) and associated with reduced patient survival. Thus miR655 could serve as a prognostic breast cancer biomarker. PMID- 29321647 TI - Molecular marker assisted breeding and genome composition analysis of Zhengmai 7698, an elite winter wheat cultivar. AB - Zhengmai 7698 is an elite winter wheat variety widely cultivated in the Southern regions of the Yellow-Huai River Valley of China. Here, we report the molecular markers used for breeding Zhengmai 7698 and the genome composition of this cultivar revealed using genome-wide SNPs. A total of 26 DNA markers derived from the genes controlling gluten protein quality, grain hardness, flour color, disease resistance, or pre-harvesting sprouting resistance were used during breeding. Consequently, Zhengmai 7698 had strong gluten, high grain hardness index, white flour color, and high levels of resistance to powdery mildew, stripe rust infections, and pre-harvesting sprouting. Using genome complexity reduction, 28,996 high-quality SNPs distributed on 21 wheat chromosomes were identified among Zhengmai 7698 and its three parental lines (4B269, Zhengmai 9405 and Zhoumai 16). Zhengmai 7698 shared 12,776, 14,411 and 16,085 SNPs with 4B269, Zhengmai 9405 and Zhoumai 16, respectively. Thus, the contributions of 4B269, Zhengmai 9405 and Zhoumai 16 to the genome of Zhengmai 7698 were comparable. Interestingly, Zhengmai 7698 had 307 unique SNPs that are absent in all three parents. We suggest that molecular markers facilitate selection of a wheat cultivar with multiple elite traits. Analysis of genome composition with SNPs may provide useful clues for further dissecting the genetic basis of improved wheat performance. PMID- 29321648 TI - Comparative analysis of miRNA expression profiles in transgenic and non transgenic rice using miRNA-Seq. AB - Safety assessment for genetically modified organisms (GMOs) is required before their release. To date, miRNAs that play important roles in eukaryotic gene regulation have not been considered in the current assessment system. In this study, we identified 6 independent Bt and EPSPS GM rice lines using PCR and immune strip. We analyzed the expression levels of Cry1Ac and EPSPS using quantitative real-time PCR and western blot. Further, miRNAs from the developing seeds of the 6 GM rice lines and the wild-type line were investigated using deep sequencing and bioinformatic approaches. Although these GM lines have different types of integration sites, copy numbers, and levels of gene expression, 21 differentially expressed miRNAs have been found compared to wild type. There is no correlation between transgenic protein expression level and the quantity of differentially expressed miRNAs. This study provides useful data about the miRNA composition of GM plants, and it might be helpful for future risk assessments of miRNA-based GM plants. PMID- 29321649 TI - Face size biases emotion judgment through eye movement. AB - Faces are the most commonly used stimuli to study emotions. Researchers often manipulate the emotion contents and facial features to study emotion judgment, but rarely manipulate low-level stimulus features such as face sizes. Here, I investigated whether a mere difference in face size would cause differences in emotion judgment. Subjects discriminated emotions in fear-happy morphed faces. When subjects viewed larger faces, they had an increased judgment of fear and showed a higher specificity in emotion judgment, compared to when they viewed smaller faces. Concurrent high-resolution eye tracking further provided mechanistic insights: subjects had more fixations onto the eyes when they viewed larger faces whereas they had a wider dispersion of fixations when they viewed smaller faces. The difference in eye movement was present across fixations in serial order but independent of morph level, ambiguity level, or behavioral judgment. Together, this study not only suggested a link between emotion judgment and eye movement, but also showed importance of equalizing stimulus sizes when comparing emotion judgments. PMID- 29321650 TI - RNA-Seq analysis and comparison of corneal epithelium in keratoconus and myopia patients. AB - Keratoconus is a common degenerative corneal disease that can lead to significant visual morbidity, and both genetic and environmental factors have been implicated in its pathogenesis. We compared the transcriptome of keratoconus and control epithelium using RNA-Seq. Epithelial tissues were obtained prior to surgery from keratoconus and myopia control patients, undergoing collagen cross-linking and photorefractive keratectomy, respectively. We identified major differences in keratoconus linked to cell-cell communication, cell signalling and cellular metabolism. The genes associated with the Hedgehog, Wnt and Notch1 signaling pathways were down-regulated in keratoconus. We also identified plasmolipin and Notch1 as being significantly reduced in keratoconus for both gene and protein expression (p < 0.05). Plasmolipin is a novel protein identified in human corneal epithelium, and has been demonstrated to have a key role in epithelial cell differentiation in other tissues. This study shows altered gene and protein expression of these three proteins in keratoconus, and further studies are clearly warranted to confirm the functional role of these proteins in the pathogenesis of keratoconus. PMID- 29321651 TI - Auditory Neural Activity in Congenitally Deaf Mice Induced by Infrared Neural Stimulation. AB - To determine whether responses during infrared neural stimulation (INS) result from the direct interaction with spiral ganglion neurons (SGNs), we tested three genetically modified deaf mouse models: Atoh1-cre; Atoh1 f/f (Atoh1 conditional knockout, CKO), Atoh1-cre; Atoh1 f/kiNeurog1 (Neurog1 knockin, KI), and the Vglut3 knockout (Vglut3 -/-) mice. All animals were exposed to tone bursts and clicks up to 107 dB (re 20 uPa) and to INS, delivered with a 200 um optical fiber. The wavelength (lambda) was 1860 nm, the radiant energy (Q) 0-800 uJ/pulse, and the pulse width (PW) 100-500 us. No auditory responses to acoustic stimuli could be evoked in any of these animals. INS could not evoke auditory brainstem responses in Atoh1 CKO mice but could in Neurog1 KI and Vglut3 -/- mice. X-ray micro-computed tomography of the cochleae showed that responses correlated with the presence of SGNs and hair cells. Results in Neurog1 KI mice do not support a mechanical stimulation through the vibration of the basilar membrane, but cannot rule out the direct activation of the inner hair cells. Results in Vglut3 -/- mice, which have no synaptic transmission between inner hair cells and SGNs, suggested that hair cells are not required. PMID- 29321652 TI - Innate IFN-gamma ameliorates experimental autoimmune encephalomyelitis and promotes myeloid expansion and PDL-1 expression. AB - The innate immune system plays a central role in the immune-mediated pathology of multiple sclerosis, and is a therapeutic target for progressive disease. Recently, it has been demonstrated that MIS416, a novel immunomodulatory microparticle that activates NOD-2 and TLR-9-signaling, has disease-modifying activity in multiple sclerosis models. This activity is dependent on innate IFN gamma; however, the precise immune regulatory mechanisms amplified by MIS416 have not previously been determined. Using the experimental autoimmune encephalomyelitis model, MIS416 treatment was associated with IFN-gamma-dependant expansion of Treg number and increased suppressive function; however, these cells did not account for disease reduction. Additionally, MIS416 treatment stimulated increased nitric oxide production that was IFN-gamma-dependant but dispensable for protection. Finally, MIS416-mediated protection was shown to correlate with IFN-gamma-dependant expansion of PDL-1-expressing peripheral myeloid cells, a subset of which was found to be selectively recruited to the brain. This central nervous system trafficking was independent of neuro-inflammatory signals as it occurred in MIS416-treated healthy mice. Together, these findings provide insight into regulatory myeloid cell activities amplified by MIS416-mediated NOD-2 and TLR-9 signalling and highlight the potential importance of these cells in accessing the brain where they may act locally and contribute to the control of neuroinflammation. PMID- 29321653 TI - Integrated sequencing of exome and mRNA of large-sized single cells. AB - Current approaches of single cell DNA-RNA integrated sequencing are difficult to call SNPs, because a large amount of DNA and RNA is lost during DNA-RNA separation. Here, we performed simultaneous single-cell exome and transcriptome sequencing on individual mouse oocytes. Using microinjection, we kept the nuclei intact to avoid DNA loss, while retaining the cytoplasm inside the cell membrane, to maximize the amount of DNA and RNA captured from the single cell. We then conducted exome-sequencing on the isolated nuclei and mRNA-sequencing on the enucleated cytoplasm. For single oocytes, exome-seq can cover up to 92% of exome region with an average sequencing depth of 10+, while mRNA-sequencing reveals more than 10,000 expressed genes in enucleated cytoplasm, with similar performance for intact oocytes. This approach provides unprecedented opportunities to study DNA-RNA regulation, such as RNA editing at single nucleotide level in oocytes. In future, this method can also be applied to other large cells, including neurons, large dendritic cells and large tumour cells for integrated exome and transcriptome sequencing. PMID- 29321654 TI - Motivating Cord Blood Donation with Information and Behavioral Nudges. AB - Umbilical cord blood is a source of hematopoietic stem cells essential to treat life-threatening diseases, such as leukemia and lymphoma. However, only a very small percentage of parents donate upon delivery. The decision to donate the cord blood occurs at a very specific time and when parents likely experience emotional, informational, and decisional overloads; these features of cord blood donation make it different from other pro-social activities. In collaboration with an OB-GYN clinic in Milan, Italy, we conducted the first randomized controlled trial that applies tools from behavioral science to foster cord blood donation, and quantified the gains that informational and behavioral "nudges" can achieve. We found that information and "soft" commitments increased donations; approaching expecting parents closer to the delivery date and providing them with multiple reminders, moreover, had the strongest impact. However, a significant portion of women who expressed consent to donate could not do so because of organizational constraints. We conclude that simple, non-invasive behavioral interventions that address information gaps and procrastination, and that increase the salience of the activity can substantially enhance altruistic donations of cord blood, especially when coupled with organizational support. PMID- 29321656 TI - Evolution of poled state in P(VDF-TrFE)/(Pb,Ba)(Zr,Ti)O3 composites probed by temperature dependent Piezoresponse and Kelvin Probe Force Microscopy. AB - Polarized states of polymer/inorganic inclusion P(VDF-TrFE)-(Pb,Ba)(Zr,Ti)O3 composites are studied at the nanoscale using both piezoresponse force microscopy (PFM) and Kelvin probe force microscopy (KPFM). It has been shown that inorganic inclusions can be visualized using KPFM due to a discontinuity of the surface potential and polarization at the interface between the inclusions and the polymer matrix. The temperature evolution of the PFM and KPFM signal profiles is investigated. Softening of the polymer matrix on approaching the Curie temperature limits application of the contact PFM method. However non-contact KPFM can be used to probe evolution of the polarization at the phase transition. Mechanisms of the KPFM contrast formation are discussed. PMID- 29321657 TI - Room temperature stable film formation of pi-conjugated organic molecules on 3d magnetic substrate. AB - An important step toward molecule-based electronics is to realize a robust and well-ordered molecular network at room temperature. To this end, one key challenge is tuning the molecule-substrate electronic interactions that influence not only the molecular selfassembly but also the stability of the resulting structures. In this study, we investigate the film formation of pi-conjugated metal-free phthalocyanine molecules on a 3d-bcc-Fe(001) whisker substrate at 300 K by using ultra-high-vacuum scanning tunneling microscopy. On bare Fe(001), hybridization between the molecular pi and the Fe(001) d-states prevents the molecular assembly, resulting in the disordered patchy structures. The second- and third-layer molecules form densely packed films, while the morphologies show clear difference. The second-layer molecules partially form p(5 * 5)-ordered films with the rectangular edges aligned along the [100] and [010] directions, while the edges of the third-layer films are rounded. Remarkably, such film morphologies are stable even at 300 K. These findings suggest that the molecular self-assembly and the resulting morphologies in the second and third layers are affected by the substrate bcc(001), despite that the Fe-d states hybridize only with the first-layer molecules. The possible mechanism is discussed with the kinetic Monte Carlo simulation. PMID- 29321655 TI - Evaluation of Brain Activity Using Near-infrared Spectroscopy in Inflammatory Bowel Disease Patients. AB - Depression is implicated as a risk factor for the recurrence of inflammatory bowel disease (IBD). Near-infrared spectroscopy (NIRS) and brain-derived neurotrophic factor (BDNF) are useful tools for evaluation of brain activity and a depressive state, respectively. The aim of this study was to clarify the association between brain activity or depressive symptoms and IBD using NIRS and BDNF. This study included 36 ulcerative colitis (UC) patients, 32 Crohn's disease (CD) patients, and 17 healthy controls (HC). Center for Epidemiologic Studies Depression Scale (CES-D) scores were determined, NIRS was performed, and serum BDNF levels were measured in all subjects. NIRS showed that the mean oxygenated hemoglobin concentration was significantly lower in the frontal lobe in the UC group than in the HC group (HC 167 +/- 106 vs. UC 83.1 +/- 85.3, p < 0.05). No significant difference was seen between the HC and CD groups. There were also no significant differences in CED-D scores and BDNF levels among the groups. Changes in the NIRS values of the UC group may indicate decreased brain activity and a fundamental difference between UC and CD, which are often lumped together as two types of IBD. PMID- 29321658 TI - Slower Time estimation in Post-Traumatic Stress Disorder. AB - Cognitive deficits in Posttraumatic Stress Disorder (PTSD) and dissociative symptoms suggest there may be an underlying and persistent problem with temporal processing in PTSD, but this question has not been systematically examined. We investigated the ability of a group of PTSD participants in estimating the duration of supra-second visual stimuli relative to healthy controls. The data of 59 participants with PTSD and 62 healthy controls, collected from the BRID database, have been examined. Overall, our results indicate that PTSD patients overestimate the duration of the displayed stimuli. Moreover, we found that PTSD are more variable in the time estimation compared to the control group. Finally, we found evidence that working memory and attention impairments were associated with time overestimation in PTSD. The finding of time overestimation in PTSD accords with previous reports of time overestimation during stressful experiences associated with fear and arousal, but extends findings to suggest it remains in chronic PTSD populations processing non-emotional stimuli. The evidence of time overestimation in PTSD suggests the potential relevance of this factor as a cognitive marker in assessing the neuropsychological profile of this clinical population. PMID- 29321661 TI - Differential recruitment of CD44 isoforms by ErbB ligands reveals an involvement of CD44 in breast cancer. AB - Members of the CD44 family of transmembrane glycoproteins control cell signaling pathways from numerous cell surface receptors, including receptor tyrosine kinases (RTKs). The decisive factor (ligand, RTKs or both) that controls the recruitment of specific CD44 isoforms is still unknown. We investigated this question by using the EGFR signaling pathway, in which one receptor can be activated by a broad range of ligands. By means of siRNA-mediated downregulation of CD44 expression and blocking experiments, we identified CD44v6 as a co receptor for EGF- and ER-induced ErbB1 activation and for NRG1-induced ErbB3 and ErbB4 activation. In contrast, TGFalpha is independent of all CD44 isoforms, even though it addresses the same receptor pairs as EGF. Moreover, the heparin sulfated CD44v3 isoform is required for HB-EGF-induced EGFR signaling. These data suggest that specific CD44 isoforms are recruited in a ligand-dependent manner as co-receptors in the EGFR signaling pathways and that the specificity is determined by the ligand and not by the receptors themselves. The in vivo relevance of this interplay between CD44 isoforms and EGFR ligands is underlined by the decreased metastatic spreading of mammary carcinomas in mice treated with a CD44v6-specific peptide. Most importantly, we found a clear correlation between the presence of CD44v6/ErbB1 complexes in breast cancer patients and lymph node metastases. PMID- 29321659 TI - Epidermal growth factor receptor and EGFRvIII in glioblastoma: signaling pathways and targeted therapies. AB - Amplification of epidermal growth factor receptor (EGFR) and its active mutant EGFRvIII occurs frequently in glioblastoma (GBM). While EGFR and EGFRvIII play critical roles in pathogenesis, targeted therapy with EGFR-tyrosine kinase inhibitors (TKIs) or antibodies has only shown limited efficacy in patients. Here we discuss signaling pathways mediated by EGFR/EGFRvIII, current therapeutics, and novel strategies to target EGFR/EGFRvIII-amplified GBM. PMID- 29321660 TI - Activated ALK signals through the ERK-ETV5-RET pathway to drive neuroblastoma oncogenesis. AB - Activating mutations of the ALK receptor occur in a subset of neuroblastoma tumors. We previously demonstrated that Alk mutations cooperate with MYCN overexpression to induce neuroblastoma in mice and identified Ret as being strongly upregulated in MYCN/Alkmut tumors. By a genetic approach in vivo, we now document an oncogenic cooperation between activated Ret and MYCN overexpression in neuroblastoma formation. We show that MYCN/RetM919T tumors exhibit histological features and expression profiles close to MYCN/Alkmut tumors. We show that RET transcript levels decrease precedes RET protein levels decrease upon ALK inhibition in neuroblastoma cell lines. Etv5 was identified as a candidate transcription factor regulating Ret expression from murine MYCN/Alkmut tumor transcriptomic data. We demonstrate that ETV5 is regulated both at the protein and mRNA levels upon ALK activation or inhibition in neuroblastoma cell lines and that this regulation precedes RET modulation. We document that ALK activation induces ETV5 protein upregulation through stabilization in a MEK/ERK dependent manner. We show that RNAi-mediated inhibition of ETV5 decreases RET expression. Reporter assays indicate that ETV5 is able to drive RET gene transcription. ChIP-seq analysis confirmed ETV5 binding on the RET promoter and identified an enhancer upstream of the promoter. Finally, we demonstrate that combining RET and ALK inhibitors reduces tumor growth more efficiently than each single agent in MYCN and AlkF1178L-driven murine neuroblastoma. Altogether, these results define the ERK-ETV5-RET pathway as a critical axis driving neuroblastoma oncogenesis downstream of activated ALK. PMID- 29321662 TI - Breast cancer metastasis to liver and lung is facilitated by Pit-1-CXCL12-CXCR4 axis. AB - Development of human tumors is driven by accumulation of alterations in tumor suppressor genes and oncogenes in cells. The POU1F1 transcription factor (also known Pit-1) is expressed in the mammary gland and its overexpression induces profound phenotypic changes in proteins involved in breast cancer progression. Patients with breast cancer and elevated expression of Pit-1 show a positive correlation with the occurrence of distant metastasis and poor overall survival. However, some mediators of Pit-1 actions are still unknown. Here, we show that CXCR4 chemokine receptor and its ligand CXCL12 play a critical role in the pro tumoral process induced by Pit-1. We found that Pit-1 increases mRNA and protein in both CXCR4 and CXCL12. Knock-down of CXCR4 reduces tumor growth and spread of Pit-1 overexpressing cells in a zebrafish xenograft model. Furthermore, we described for the first time pro-angiogenic effects of Pit-1 through the CXCL12 CXCR4 axis, and that extravasation of Pit-1 overexpressing breast cancer cells is strongly reduced in CXCL12-deprived target tissues. Finally, in breast cancer patients, expression of Pit-1 in primary tumors was found to be positively correlated with CXCR4 and CXCL12, with specific metastasis in liver and lung, and with clinical outcome. Our results suggest that Pit-1-CXCL12-CXCR4 axis could be involved in chemotaxis guidance during the metastatic process, and may represent prognostic and/or therapeutic targets in breast tumors. PMID- 29321663 TI - LPA signaling is regulated through the primary cilium: a novel target in glioblastoma. AB - The primary cilium is a ubiquitous organelle presented on most human cells. It is a crucial signaling hub for multiple pathways including growth factor and G protein coupled receptors. Loss of primary cilia, observed in various cancers, has been shown to affect cell proliferation. Primary cilia formation is drastically decreased in glioblastoma (GBM), however, the role of cilia in normal astrocyte or glioblastoma proliferation has not been explored. Here, we report that loss of primary cilia in human astrocytes stimulates growth rate in a lysophosphatidic acid (LPA)-dependent manner. We show that lysophosphatidic acid receptor 1 (LPAR1) is accumulated in primary cilia. LPAR1 signaling through Galpha12/Galphaq was previously reported to be responsible for cancer cell proliferation. We found that in ciliated cells, Galpha12 and Galphaq are excluded from the cilium, creating a barrier against unlimited proliferation, one of the hallmarks of cancer. Upon loss of primary cilia, LPAR1 redistributes to the plasma membrane with a concomitant increase in LPAR1 association with Galpha12 and Galphaq. Inhibition of LPA signaling with the small molecule compound Ki16425 in deciliated highly proliferative astrocytes or glioblastoma patient-derived cells/xenografts drastically suppresses their growth both in vitro and in vivo. Moreover, Ki16425 brain delivery via PEG-PLGA nanoparticles inhibited tumor progression in an intracranial glioblastoma PDX model. Overall, our findings establish a novel mechanism by which primary cilium restricts proliferation and indicate that loss of primary cilia is sufficient to increase mitogenic signaling, and is important for the maintenance of a highly proliferative phenotype. Clinical application of LPA inhibitors may prove beneficial to restrict glioblastoma growth and ensure local control of disease. PMID- 29321664 TI - Mitochondrial fission and mitophagy depend on cofilin-mediated actin depolymerization activity at the mitochondrial fission site. AB - Mitochondria fission and mitophagy are fundamentally crucial to cellular physiology and play important roles in cancer progression. Developing a comprehensive understanding of the molecular mechanism underlying mitochondrial fission and mitophagy will provide novel strategies for cancer prevention and treatment. Actin has been shown to participate in mitochondrial fission and mitophagy regulation. Cofilin is best known as an actin-depolymerizing factor. However, the molecular mechanism by which cofilin regulates mitochondrial fission and mitophagy remains largely unknown. Here we report that knockdown of cofilin attenuates and overexpression of cofilin potentiates mitochondrial fission as well as PINK1/PARK2-dependent mitophagy induced by staurosporine (STS), etoposide (ETO), and carbonyl cyanide 3-chlorophenylhydrazone (CCCP). Cofilin-mediated PINK1 (PTEN-induced putative kinase 1) accumulation mainly depends on its regulation of mitochondrial proteases, including peptidase mitochondrial processing beta (MPPbeta), presenilin-associated rhomboid-like protease (PARL), and ATPase family gene 3-like 2 (AFG3L2), via mitochondrial membrane potential activity. We also found that the interaction and colocalization of G-actin/F actin with cofilin at mitochondrial fission sites undergo constriction after CCCP treatment. Pretreatment with the actin polymerization inhibitor latrunculin B (LatB) increased and actin-depolymerization inhibitor jasplakinolide (Jas) decreased mitochondrial translocation of actin induced by STS, ETO, and CCCP. Both LatB and Jas abrogated CCCP-mediated mitochondrial fission and mitophagy. Our data suggest that G-actin is the actin form that is translocated to mitochondria, and the actin-depolymerization activity regulated by cofilin at the mitochondrial fission site is crucial for inducing mitochondrial fission and mitophagy. PMID- 29321665 TI - FHL2 interacts with EGFR to promote glioblastoma growth. AB - Four-and-a-half LIM protein2 (FHL2) is a member of the LIM-only protein family, which plays a critical role in tumorigenesis. We previously reported that FHL2 is upregulated and plays an oncogenic role in glioblastoma (GBM), the most common and aggressive brain tumor. GBM is also marked by amplification of the epidermal growth factor receptor (EGFR) gene and its mutations, of which EGFRvIII is the most common and functionally significant. Here we report that FHL2 physically interacts with the wild-type EGFR and its mutated EGFRvIII form in GBM cells. Expression of FHL2 caused increased EGFR and EGFRvIII protein levels and this was due to an increase in protein stability rather than an increase in EGFR mRNA expression. In contrast, FHL2 knockdown using RNA interference reduced EGFR and EGFRvIII protein expression and the phosphorylation levels of EGFR and AKT. Consistent with these features, EGFR expression was significantly lower in mouse FHL2-null astrocytes, where reintroduction of FHL2 was able to restore EGFR levels. Using established GBM cell lines and patient-derived neurosphere lines, FHL2 silencing markedly induced cell apoptosis in EGFRvIII-positive cells. Targeting FHL2 significantly prevented EGFRvIII-positive GBM tumor growth in vivo. FHL2 expression also positively correlated with EGFR expression in GBM samples from patients. Taken together, our results demonstrate that FHL2 interacts with EGFR and EGFRvIII to increase their levels and this promotes glioma growth, representing a novel mechanism that may be therapeutically targetable. PMID- 29321666 TI - Are there multiple cells of origin of Merkel cell carcinoma? AB - Merkel cell carcinoma (MCC) is a rare but lethal cancer with the highest case-by case fatality rate among all skin cancers. Eighty percent of cancers are associated with the Merkel cell polyomavirus (MCPyV). Twenty percent of MCCs are virus negative. Recent epidemiological data suggest that there are important, clinically relevant differences between these two subtypes of MCC. Recent studies in cancer genomics, mouse genetics, and virology experiments have transformed our understanding of MCC pathophysiology. Importantly, dramatic differences in the genetics of these two MCC subtypes suggest fundamental differences in their pathophysiology. We review these recent works and find that they provocatively suggest that MCPyV-positive and MCPyV-negative MCCs arise from two different cells of origin: the MCPyV-negative MCC from epidermal keratinocytes and the MCPyV-positive MCC from dermal fibroblasts. If true, this would represent the first cancer that we are aware of that evolves from cells of origin from two distinct germ layers: MCPyV-negative MCCs from ectodermal keratinocytes and MCPyV positive MCCs from mesodermal fibroblasts. Future epigenetic experiments may prove valuable in confirming these distinct lineages for these MCC subtypes, especially for the clinical importance the cell of origin has on MCC treatment and prevention. PMID- 29321667 TI - The management of retinoblastoma. AB - Retinoblastoma (Rb) is the most common primary intraocular malignancy of childhood, but an uncommon paediatric cancer, with a constant incidence worldwide of 1:15,000-1:20,000 live births. Despite its rarity, Rb has served as a cornerstone in the field of oncology in many of the aspects that comprise cancer management, including classification schemes, treatment modalities, genetic testing and screening. Until just over half a century ago, the major treatment for Rb was eye removal, and prognosis was poor with outcome fatal for most children. The dramatic evolution, in a short period of time across all fields of Rb management, as well as the development of specialized centres, better infrastructure and introduction of awareness campaigns, has resulted in nearly 100% survival in developed countries and allowed eye salvage in many of the cases. External beam radiotherapy was used as the main treatment choice for four decades, but replaced by chemotherapy at the turn of the century. Initially, and still in many centres, chemotherapy is administered intravenously, but recently is targeted directly into the eye by means of intra-ophthalmic artery and intravitreal chemotherapy. To date, a range of treatments is available to the Rb expert, including enucleation, but there is lack of consensus in a number of scenarios as to what to use and when. In such a rare cancer, treatment outcomes are reported usually via retrospective analyses, with few prospective randomized controlled trials. Classification schemes have also evolved following the introduction of new treatment modalities, but discrepancies exist among centres with respect to the preferred schema and its interpretation. Retinoblastoma management is a remarkable success story, but the future will require a collaborative effort in the form of multicentre randomized controlled trials in order to further improve the quality of care for this subset of young children with ocular cancer. PMID- 29321669 TI - Phenotypic characteristics of colorectal cancer in BRCA1/2 mutation carriers. AB - Mutations in the BRCA1/2 genes were recently shown to be associated with an increased risk for colorectal cancer. We characterized the largest cohort available of BRCA1/2 mutation carriers with colorectal cancer. We analyzed 32 patients with lower gastrointestinal cancers and germline BRCA1/2 mutations from two large academic hospital registries; 91% of patients were of Ashkenazi ancestry, 78% were women, and 62.5% were carriers of BRCA1 gene mutations. A high percentage of colorectal tumors (34.5%) had a mucinous histology and were located atypically in the left colon. Two patients had anal cancer with unusual histology and an additional patient had mucinous small bowel carcinoma. Gene expression analysis showed significant correlation between the gene signatures of left mucinous colorectal cancer and basal-like breast cancer. Our results imply that Ashkenazi BRCA1/2 mutation carriers with colorectal cancer might have unique characteristics with a high rate of left-sided, mucinous histology colorectal cancer, and possibly anal carcinoma. This report suggests a phenotypic influence of defects in DNA repair genes on colorectal tumors. PMID- 29321668 TI - AATF suppresses apoptosis, promotes proliferation and is critical for Kras-driven lung cancer. AB - A fundamental principle in malignant tranformation is the ability of cancer cells to escape the naturally occurring cell-intrinsic responses to DNA damage. Tumors progress despite the accumulation of DNA lesions. However, the underlying mechanisms of this tolerance to genotoxic stress are still poorly characterized. Here, we show that replication stress occurs in Kras-driven murine lung adenocarcinomas, as well as in proliferating murine embryonic and adult tissues. We identify the transcriptional regulator AATF/CHE-1 as a key molecule to sustain proliferative tissues and tumor progression in parts by inhibiting p53-driven apoptosis in vivo. In an autochthonous Kras-driven lung adenocarcinoma model, deletion of Aatf delayed lung cancer formation predominantly in a p53-dependent manner. Moreover, targeting Aatf in existing tumors through a dual recombinase strategy caused a halt in tumor progression. Taken together, these data suggest that AATF may serve as a drug target to treat KRAS-driven malignancies. PMID- 29321671 TI - Preconception carrier screening for multiple disorders: evaluation of a screening offer in a Dutch founder population. AB - Technological developments have enabled carrier screening for multiple disorders. This study evaluated experiences with a preconception carrier screening offer for four recessive disorders in a Dutch founder population. Questionnaires were completed by 182 attendees pretesting and posttesting and by 137 non-attendees. Semistructured interviews were conducted with seven of the eight carrier couples. Attendees were mainly informed about the existence of screening by friends/colleagues (49%) and family members (44%). Familiarity with the genetic disorders was high. Knowledge after counseling increased (p < 0.001); however, still 9%, compared to 29% before counseling, wrongly mentioned an increased risk of having an affected child if both parents are carriers of different disorders. Most attendees (97%) recalled their test results correctly, but two couples reported being carrier of another disorder than reported. Overall, 63% felt worried while waiting for results but anxiety levels returned to normal afterwards. In all, 2/39 (5%) carriers felt less healthy. Screened individuals were very satisfied; they did not regret testing (97%) and would recommend testing to others (97%). The majority (94%) stated that couples should always have a pretest consultation, preferably by a genetic counselor rather than their general practitioner (83%). All carrier couples made reproductive decisions based on their results. Main reason for non-attendance was unawareness of the screening offer. With expanded carrier screening, adequately informing couples pretest and posttesting is of foremost importance. Close influencers (family/friends) can be used to raise awareness of a screening offer. Our findings provide lessons for the implementation of expanded carrier screening panels in other communities and other settings. PMID- 29321670 TI - Clinical and experimental evidence suggest a link between KIF7 and C5orf42 related ciliopathies through Sonic Hedgehog signaling. AB - Acrocallosal syndrome (ACLS) is an autosomal recessive neurodevelopmental disorder caused by KIF7 defects and belongs to the heterogeneous group of ciliopathies related to Joubert syndrome (JBTS). While ACLS is characterized by macrocephaly, prominent forehead, depressed nasal bridge, and hypertelorism, facial dysmorphism has not been emphasized in JBTS cohorts with molecular diagnosis. To evaluate the specificity and etiology of ACLS craniofacial features, we performed whole exome or targeted Sanger sequencing in patients with the aforementioned overlapping craniofacial appearance but variable additional ciliopathy features followed by functional studies. We found (likely) pathogenic variants of KIF7 in 5 out of 9 families, including the original ACLS patients, and delineated 1000 to 4000-year-old Swiss founder alleles. Three of the remaining families had (likely) pathogenic variants in the JBTS gene C5orf42, and one patient had a novel de novo frameshift variant in SHH known to cause autosomal dominant holoprosencephaly. In accordance with the patients' craniofacial anomalies, we showed facial midline widening after silencing of C5orf42 in chicken embryos. We further supported the link between KIF7, SHH, and C5orf42 by demonstrating abnormal primary cilia and diminished response to a SHH agonist in fibroblasts of C5orf42-mutated patients, as well as axonal pathfinding errors in C5orf42-silenced chicken embryos similar to those observed after perturbation of Shh signaling. Our findings, therefore, suggest that beside the neurodevelopmental features, macrocephaly and facial widening are likely more general signs of disturbed SHH signaling. Nevertheless, long-term follow-up revealed that C5orf42-mutated patients showed catch-up development and fainting of facial features contrary to KIF7-mutated patients. PMID- 29321673 TI - Genomic analysis of family data reveals additional genetic effects on intelligence and personality. AB - Pedigree-based analyses of intelligence have reported that genetic differences account for 50-80% of the phenotypic variation. For personality traits these effects are smaller, with 34-48% of the variance being explained by genetic differences. However, molecular genetic studies using unrelated individuals typically report a heritability estimate of around 30% for intelligence and between 0 and 15% for personality variables. Pedigree-based estimates and molecular genetic estimates may differ because current genotyping platforms are poor at tagging causal variants, variants with low minor allele frequency, copy number variants, and structural variants. Using ~20,000 individuals in the Generation Scotland family cohort genotyped for ~700,000 single-nucleotide polymorphisms (SNPs), we exploit the high levels of linkage disequilibrium (LD) found in members of the same family to quantify the total effect of genetic variants that are not tagged in GWAS of unrelated individuals. In our models, genetic variants in low LD with genotyped SNPs explain over half of the genetic variance in intelligence, education, and neuroticism. By capturing these additional genetic effects our models closely approximate the heritability estimates from twin studies for intelligence and education, but not for neuroticism and extraversion. We then replicated our finding using imputed molecular genetic data from unrelated individuals to show that ~50% of differences in intelligence, and ~40% of the differences in education, can be explained by genetic effects when a larger number of rare SNPs are included. From an evolutionary genetic perspective, a substantial contribution of rare genetic variants to individual differences in intelligence, and education is consistent with mutation-selection balance. PMID- 29321672 TI - Phenotypic interpretation of complex chromosomal rearrangements informed by nucleotide-level resolution and structural organization of chromatin. AB - Molecular characterization of balanced chromosomal abnormalities constitutes a powerful tool in understanding the pathogenic mechanisms of complex genetic disorders. Here we report a male with severe global developmental delay in the presence of a complex karyotype and normal microarray and exome studies. The subject, referred to as DGAP294, has two de novo apparently balanced translocations involving chromosomes 1 and 14, and chromosomes 4 and 10, disrupting several different transcripts of adhesion G protein-coupled receptor L2 (ADGRL2) and protocadherin 15 (PCDH15). In addition, a maternally inherited inversion disrupts peptidyl arginine deiminase types 3 and 4 (PADI3 and PADI4) on chromosome 1. None of these gene disruptions explain the patient's phenotype. Using genome regulatory annotations and chromosome conformation data, we predict a position effect ~370 kb upstream of a translocation breakpoint located at 14q12. The position effect involves forkhead box G1 (FOXG1), mutations in which are associated with the congenital form of Rett syndrome and FOXG1 syndrome. We believe the FOXG1 position effect largely accounts for the clinical phenotype in DGAP294, which can be classified as FOXG1 syndrome like. Our findings emphasize the significance of not only analyzing disrupted genes by chromosomal rearrangements, but also evaluating potential long-range position effects in clinical diagnoses. PMID- 29321674 TI - Body mass index, waist circumference, and waist-to-height ratio for prediction of multiple metabolic risk factors in Chinese elderly population. AB - The purpose of this study was to compare the predictive ability of five obesity indices, including body mass index (BMI), waist circumference (WC), waist-to height ratio (WHtR), waist-to-hip ratio (WHpR) and body adiposity index (BAI), to predict multiple non-adipose metabolic risk factors, including elevated blood pressure (BP), elevated fasting plasma glucose (FPG), elevated triglyceride (TG), reduced high-density lipoprotein cholesterol (HDL-C), elevated serum uric acid (SUA) and non-alcoholic fatty liver disease (NAFLD), in an elderly Chinese population. A total of 5685 elderly Chinese subjects (>=60 years) were recruited into our community-based cross-sectional study. Receiver operating characteristic curve (ROC) analyses were used to compare the predictive ability as well as determine the optimal cut-off values of the obesity indices for multiple metabolic risk factors. According to the areas under the receiver operating characteristic curve (AUC), BMI, WC and WHtR were able to similarly predict high metabolic risk in males (0.698 vs. 0.691 vs. 0.688), while in females, BMI and WC were able to similarly predict high metabolic risk (0.676 vs. 0.669). The optimal cut-off values of BMI, WC and WHtR in males were, respectively, 24.12 kg/m2, 83.5 cm and 0.51, while in females, the values were 23.53 kg/m2 and 77.5 cm. PMID- 29321676 TI - Synthesis of Wurtzite Cu2ZnSnS4 Nanosheets with Exposed High-Energy (002) Facets for Fabrication of Efficient Pt-Free Solar Cell Counter Electrodes. AB - Two-dimensional (2D) semiconducting nanomaterials have generated much interest both because of fundamental scientific interest and technological applications arising from the unique properties in two dimensions. However, the colloidal synthesis of 2D quaternary chalcogenide nanomaterials remains a great challenge owing to the lack of intrinsic driving force for its anisotropic growth. 2D wurtzite Cu2ZnSnS4 nanosheets (CZTS-NS) with high-energy (002) facets have been obtained for the first time via a simple one-pot thermal decomposition method. The CZTS-NS exhibits superior photoelectrochemical activity as compared to zero dimensional CZTS nanospheres and comparable performance to Pt counter electrode for dye sensitized solar cells. The improved catalytic activity can be attributed to additional reactive catalytic sites and higher catalytic reactivity in high energy (002) facets of 2D CZTS-NS. This is in accordance with the density functional theory (DFT) calculations, which indicates that the (002) facets of wurtzite CZTS-NS possess higher surface energy and exhibits remarkable reducibility for I3- ions. The developed synthetic method and findings will be helpful for the design and synthesis of 2D semiconducting nanomaterials, especially eco-friendly copper chalcogenide nanocrystals for energy harvesting and photoelectric applications. PMID- 29321675 TI - Overexpression of a constitutively active truncated form of OsCDPK1 confers disease resistance by affecting OsPR10a expression in rice. AB - The rice pathogenesis-related protein OsPR10a was scarcely expressed in OsCDPK1 silenced (Ri-1) rice, which was highly sensitive to pathogen infection. After inoculating the leaves with bacterial blight (Xanthomonas oryzae pv. oryzae; Xoo), we found that the expression of OsPR10a was up- and down-regulated in OEtr 1 (overexpression of the constitutively active truncated form of OsCDPK1) and Ri 1 rice plants, respectively. OsPR10a and OsCDPK1 showed corresponding expression patterns and were up-regulated in response to the jasmonic acid, salicylic acid and Xoo treatments, and OsPR1 and OsPR4 were significantly up-regulated in OEtr 1. These results suggest that OsCDPK1 may be an upstream regulator involved in rice innate immunity and conferred broad-spectrum of disease resistance. Following the Xoo inoculation, the OEtr-1 and Ri-1 seedlings showed enhanced and reduced disease resistance, respectively. The dihybrid rice Ri-1/OsPR10a-Ox not only bypassed the effect of OsCDPK1 silencing on the susceptibility to Xoo but also showed enhanced disease resistance and, consistent with Ri-1 phenotypes, increased plant height and grain size. Our results reveal that OsCDPK1 plays novel key roles in the cross-talk and mediation of the balance between stress response and development and provides a clue for improving grain yield and disease resistance simultaneously in rice. PMID- 29321677 TI - Recognition by host nuclear transport proteins drives disorder-to-order transition in Hendra virus V. AB - Hendra virus (HeV) is a paramyxovirus that causes lethal disease in humans, for which no vaccine or antiviral agent is available. HeV V protein is central to pathogenesis through its ability to interact with cytoplasmic host proteins, playing key antiviral roles. Here we use immunoprecipitation, siRNA knockdown and confocal laser scanning microscopy to show that HeV V shuttles to and from the nucleus through specific host nuclear transporters. Spectroscopic and small angle X-ray scattering studies reveal HeV V undergoes a disorder-to-order transition upon binding to either importin alpha/beta1 or exportin-1/Ran-GTP, dependent on the V N-terminus. Importantly, we show that specific inhibitors of nuclear transport prevent interaction with host transporters, and reduce HeV infection. These findings emphasize the critical role of host-virus interactions in HeV infection, and potential use of compounds targeting nuclear transport, such as the FDA-approved agent ivermectin, as anti-HeV agents. PMID- 29321679 TI - Responses of Intrinsic Water-use Efficiency and Tree Growth to Climate Change in Semi-Arid Areas of North China. AB - Tree-level intrinsic water-use efficiency (iWUE) is derived from the tree-ring 13C isotope composition (delta13C) and is an important indicator of the adaptability for trees to climate change. However, there is still uncertainty regarding the relationship between long-term forest ecosystem carbon sequestration capacity and iWUE. To determine whether elevated atmospheric CO2 concentration (Ca) increase iWUE and tree growth (basal area increment, BAI), dendrochronological methods and stable isotope analyses were used to examine annual changes in the tree-ring width and carbon isotope composition (delta13C) of Platycladus orientalis in northern China. The iWUE derived from delta13C has increased significantly (p < 0.01). Long-term iWUE trend was largely and positively driven by the elevated atmospheric CO2 concentration and temperature. We observed a general increase in averaged BAI, which had significant positive correlation with iWUE (R2 = 0.3186, p < 0.01). Increases in iWUE indeed translated into enhanced P. orientalis growth in semi-arid areas of northern China. Elevated atmospheric CO2 concentration significantly (p < 0.01) stimulated P. orientalis biomass accumulation when Ca was less than approximately 320 ppm in the early phase; however, this effect was not pronounced when Ca exceeded 320 ppm. PMID- 29321678 TI - Systems pharmacology analysis of synergy of TCM: an example using saffron formula. AB - Traditional Chinese medicine (TCM) follows the principle of formulae, in which the pharmacological activity of a single herb can be enhanced or potentiated by addition of other herbs. Nevertheless, the involved synergy mechanisms in formulae remain unknown. Here, a systems-based method is proposed and applied to three representative Chinese medicines in compound saffron formula (CSF): two animal spices (Moschus, Beaver Castoreum), and one herb Crocus sativus which exert synergistic effects for cardiovascular diseases (CVDs). From the formula, 42 ingredients and 66 corresponding targets are acquired based on the ADME evaluation and target fishing model. The network relationships between the compounds and targets are assembled with CVDs pathways to elucidate the synergistic therapeutic effects between the spices and the herbs. The results show that different compounds of the three medicines show similar curative activity in CVDs. Additionally, the active compounds from them shared CVDs relevant targets (multiple compounds-one target), or functional diversity targets but with clinical relevance (multiple compounds-multiple targets-one disease). Moreover, the targets of them are largely enriched in the same CVDs pathways (multiple targets-one pathway). These results elucidate why animal spices and herbs can have pharmacologically synergistic effects on CVDs, which provides a new way for drug discovery. PMID- 29321680 TI - Cryptic transmission of ST405 Escherichia coli carrying bla NDM-4 in hospital. AB - Three carbapenem-resistant Escherichia coli were recovered from rectal swabs of different patients in a tertiary hospital and were found carrying bla NDM-4, an uncommon bla NDM variant. Genome sequences of the isolates were obtained using Illumina technology and the long-read MinION sequencer. The isolates belonged to ST405 and phylogenetic group D, a globally distributed lineage associated with antimicrobial resistance. In addition to bla NDM-4, the three isolates carried 14 known resistance genes including the extended-spectrum beta-lactamase gene bla CTX-M-15. There were only 1 or 2 SNPs between the isolates, suggesting a common origin and cryptic transmission in hospital. bla NDM-4 was located on a 46.5-kb IncFIA self-transmissible plasmid, which may facilitate further dissemination of bla NDM-4. Two copies of IS26 bracketed a 14.6-kb region containing bla NDM-4 and have the potential to form a composite transposon for mediating the mobilization of bla NDM-4. PMID- 29321681 TI - In vivo monitoring of hair cycle stages via bioluminescence imaging of hair follicle NG2 cells. AB - Hair growth occurs periodically in a cycle that consists of three different phases: growth, regression, and resting. The length of each phase is regulated by both intrinsic and extrinsic factors throughout life, and influenced by physiological and pathological conditions. Elongation of the resting phase and shortening of the growth phase occur during physiological ageing and in baldness, respectively. In vivo discrimination of each phase of the hair cycle can be used to research for regeneration of hair follicles as well as to evaluate the efficacy of hair regrowth treatments in the same individual. Here we show that NG2+ epithelial cells in the hair follicles encompass bulge stem cells, and that the number of hair follicle NG2 cells underwent dramatic changes during the hair cycle. Transgenic rats with expression of firefly luciferase gene in NG2 cells were generated to monitor the hair cycle in vivo. Hair follicle NG2 cells were clearly visualized via bioluminescence imaging to study each phase of the hair cycle in the rats, from infancy to old age. PMID- 29321685 TI - Physical activity and diet on atherogenic index of plasma among adults in the United States: mediation considerations by central adiposity. AB - BACKGROUND/OBJECTIVES: The potential interactive or combined association of moderate-to-vigorous physical activity (MVPA) and dietary behavior with atherogenic index of plasma (AIP) has yet to be explored in a representative sample of US adults. Thus, the study aim was to examine the association of MVPA and dietary behavior on AIP, with potential mediation considerations by central adiposity. SUBJECTS/METHODS: Data from the National Health and Nutrition Examination Survey were used (N = 2701 adults aged 20-85 years). AIP was evaluated via blood sample, MVPA was assessed via accelerometry, and two 24-h recalls were utilized to calculate Healthy Eating Index (HEI), a metric of dietary quality. Android-specific dual energy X-ray absorptiometry (DXA) was used to measure central adiposity. RESULTS: Meeting MVPA guidelines (OR = 0.58; 95% CI: 0.41-0.82; P = 0.004), but not meeting dietary guidelines (OR = 0.89; 95% CI: 0.69-1.15; P = 0.37), was associated with reduced odds of having an elevated (>0.24 mmol/L) AIP. Having one (OR = 0.68; 95% CI: 0.52-0.89; P = 0.007) or both (OR = 0.55; 95% CI: 0.37-0.82; P = 0.005) health-enhancing behaviors (adequate physical activity and/or healthy diet), when compared to having neither, was associated with reduced odds (32 and 45%) for having an elevated AIP. The relative excess risk due to interaction (RERI) was 0.06 (95% CI: -0.06 to 0.18; P = 0.31), suggesting there is no additive interaction between MVPA and dietary behavior on AIP. All associations were attenuated when including central adiposity as a covariate, suggesting a mediation effect of central adiposity. CONCLUSIONS: MVPA is independently associated with reduced odds of having an elevated AIP, having both adequate levels of MVPA and a healthy diet does not substantively reduce the odds of AIP, and there is no additive interaction effect between MVPA and diet on AIP. Central adiposity mediated the relationship between MVPA and AIP. PMID- 29321683 TI - Dual function of thalamic low-vigilance state oscillations: rhythm-regulation and plasticity. AB - During inattentive wakefulness and non-rapid eye movement (NREM) sleep, the neocortex and thalamus cooperatively engage in rhythmic activities that are exquisitely reflected in the electroencephalogram as distinctive rhythms spanning a range of frequencies from <1 Hz slow waves to 13 Hz alpha waves. In the thalamus, these diverse activities emerge through the interaction of cell intrinsic mechanisms and local and long-range synaptic inputs. One crucial feature, however, unifies thalamic oscillations of different frequencies: repetitive burst firing driven by voltage-dependent Ca2+ spikes. Recent evidence reveals that thalamic Ca2+ spikes are inextricably linked to global somatodendritic Ca2+ transients and are essential for several forms of thalamic plasticity. Thus, we propose herein that alongside their rhythm-regulation function, thalamic oscillations of low-vigilance states have a plasticity function that, through modifications of synaptic strength and cellular excitability in local neuronal assemblies, can shape ongoing oscillations during inattention and NREM sleep and may potentially reconfigure thalamic networks for faithful information processing during attentive wakefulness. PMID- 29321686 TI - Effect of monitoring salt concentration of home-prepared dishes and using low sodium seasonings on sodium intake reduction. AB - BACKGROUND/OBJECTIVES: Objective methods such as the monitoring of salt concentrations in home-prepared dishes may be effective in reducing salt intake. We investigated the effect of monitoring the salt concentration of home-prepared dishes (Monitoring) on salt reduction and change in taste threshold, and the effect of the simultaneous use of low-sodium seasonings (Seasoning) to compare the effect of Monitoring with the conventional method. SUBJECTS/METHODS: We conducted a double-blind randomized controlled study using a 2 * 2 factorial design with two interventions. A total of 50 participants (40-75 years-old) were recruited among residents of Niigata Prefecture, a high sodium-consuming population in Japan, then randomly allocated to four groups. After excluding participants with incomplete urine collection, change in salt intake was evaluated using 24-hour urinary excretion as a surrogate of intake for 43 participants. Change in taste threshold was evaluated in 48 participants after excluding those with incomplete threshold measurement. RESULTS: The Monitoring intervention group showed a significant decrease in sodium intake (-777 mg/24 h), whereas the decrease in the Seasoning intervention group was not significant ( 413 mg/24 h). Sodium intake did not statistically differ between the intervention and control groups (-1011 mg/24 h and -283 mg/24 h for Monitoring and Seasoning, respectively). The changes in taste threshold measurement were very small and did not markedly differ between groups. CONCLUSIONS: Monitoring the salt concentration of dishes had a potentially stronger salt-reducing effect than the use of low-sodium seasonings, a conventional method. Confirmation requires additional study with a larger sample size. PMID- 29321682 TI - Intermittent metabolic switching, neuroplasticity and brain health. AB - During evolution, individuals whose brains and bodies functioned well in a fasted state were successful in acquiring food, enabling their survival and reproduction. With fasting and extended exercise, liver glycogen stores are depleted and ketones are produced from adipose-cell-derived fatty acids. This metabolic switch in cellular fuel source is accompanied by cellular and molecular adaptations of neural networks in the brain that enhance their functionality and bolster their resistance to stress, injury and disease. Here, we consider how intermittent metabolic switching, repeating cycles of a metabolic challenge that induces ketosis (fasting and/or exercise) followed by a recovery period (eating, resting and sleeping), may optimize brain function and resilience throughout the lifespan, with a focus on the neuronal circuits involved in cognition and mood. Such metabolic switching impacts multiple signalling pathways that promote neuroplasticity and resistance of the brain to injury and disease. PMID- 29321687 TI - Impact of biofortified maize consumption on serum carotenoid concentrations in Zambian children. AB - Biofortified maize, designed as an intervention strategy to prevent vitamin A deficiency, can provide upwards of 15 MUg beta-carotene per g dry weight. Some varieties also have elevated concentrations of other carotenoids. We conducted a cluster randomized, controlled feeding trial in rural Zambia to test the impact of daily consumption of biofortified maize over a 6-month period on vitamin A status. Serum concentrations of retinol and carotenoids were assessed by high performance liquid chromatography. Data on circulating carotenoids by intervention group in 679 children are reported here. As previously shown, consumption of this beta-carotene-rich maize significantly improved serum beta carotene concentrations (0.273 vs. 0.147 MUmol/L, p < 0.001, in this subset of children). Here we show significant increases in alpha-carotene, beta cryptoxanthin, and zeaxanthin (p < 0.001). There was no impact on lutein or lycopene concentrations. Consumption of biofortified maize can have broader implications beyond the control of vitamin A deficiency (Trial registration: NCT01695148). PMID- 29321684 TI - Leptin and the maintenance of elevated body weight. AB - Obesity represents the single most important risk factor for early disability and death in developed societies, and the incidence of obesity remains at staggering levels. CNS systems that modulate energy intake and expenditure in response to changes in body energy stores serve to maintain constant body adiposity; the adipocyte-derived hormone leptin and its receptor (LEPR) represent crucial regulators of these systems. As in the case of insulin resistance, a variety of mechanisms (including feedback inhibition, inflammation, gliosis and endoplasmic reticulum stress) have been proposed to interfere with leptin action and impede the systems that control body energy homeostasis to promote or maintain obesity, although the relative importance and contribution of each of these remain unclear. However, LEPR signalling may be increased (rather than impaired) in common obesity, suggesting that any obesity-associated defects in leptin action must result from lesions somewhere other than the initial LEPR signal. It is also possible that increased LEPR signalling could mediate some of the obesity associated changes in hypothalamic function. PMID- 29321688 TI - Changes in nutritional care after implementing national guidelines-a 10-year follow-up study. AB - BACKGROUND/OBJECTIVES: In 2004, a survey conducted in Scandinavia documented insufficient knowledge in nutrition care among doctors and nurses. The survey also revealed a significant discrepancy in nutritional practice, where Norway ranked lowest, thus leading to several actions including elaboration of national guidelines. The aim of this study was to evaluate potential changes in nutritional practice, as well as assessing barriers to nutrition therapy, 10 years after the former study. SUBJECTS/METHODS: In the first half of 2014, a total of 4000 doctors and nurses received a questionnaire, similar to the one used in 2004. The questions dealt with nutritional practice, routines, knowledge, barriers, and use of clinical dietitians (CDs) in the hospitals. RESULTS: The response rate was 22%. Routines in nutritional practice were significantly improved. The level of knowledge among respondents were increased, but lack of knowledge and lack of assignment of responsibility were still important barriers. The patients' contradiction could be a barrier to the use of enteral nutrition. CDs are used in a small amount of patients, and wards with good nutritional routines have a better cooperation with CDs than wards with insufficient routines. CONCLUSIONS: Routines in clinical nutrition have improved from 2004 to 2014. Barriers in the daily practice among health care workers like lack of knowledge and lack of assignment of responsibility are still important, and health care professionals seem to let the patient himself or herself be a barrier to the use of enteral nutrition. PMID- 29321689 TI - Analysis of Combined Transcriptomes Identifies Gene Modules that Differentially Respond to Pathogenic Stimulation of Vascular Smooth Muscle and Endothelial Cells. AB - Smooth muscle cells (SMCs) and endothelial cells (ECs) are vital cell types composing the vascular medial wall and the atheroprotective inner lining, respectively. Current treatments for cardiovascular disease inhibit SMC hyperplasia but compromise EC integrity, predisposing patients to thrombosis. Therapeutics targeting SMCs without collateral damage to ECs are highly desirable. However, differential (SMC versus EC) disease-associated regulations remain poorly defined. We conducted RNA-seq experiments to investigate SMC-versus EC differential transcriptomic dynamics, following treatment of human primary SMCs and ECs with TNFalpha or IL-1beta, both established inducers of SMC hyperplasia and EC dysfunction. As revealed by combined SMC/EC transcriptomes, after TNFalpha or IL-1beta induction, 174 and 213 genes respectively showed greater up-regulation in SMCs than in ECs (SMC-enriched), while 117 and 138 genes showed greater up-regulation in ECs over SMCs (EC-enriched). Analysis of gene interaction networks identified central genes shared in the two SMC-enriched gene sets, and a distinct group of central genes common in the two EC-enriched gene sets. Significantly, four gene modules (subnetworks) were identified from these central genes, including SMC-enriched JUN and FYN modules and EC-enriched SMAD3 and XPO1 modules. These modules may inform potential intervention targets for selective blockage of SMC hyperplasia without endothelial damage. PMID- 29321690 TI - Evidence for energetic tradeoffs between physical activity and childhood growth across the nutritional transition. AB - Despite broad implications for understanding human life history, energetics, and health, the impact of physical activity on childhood growth remains unclear. Particularly understudied is the effect of secular changes in physical activity on child development. We address these shortcomings using data spanning the transition from traditional to semi-developed economy among Yucatec Maya agriculturalists. Anthropometric and behavioral observation data were collected from children living in a subsistence-based rural community in 1992 and again in 2012 following the introduction of a school and mechanized technologies but minimal overt dietary change. Multiple regression analyses demonstrate dramatic twenty-year transformations in how children spent their time. This behavioral change was associated with large declines in estimated physical activity level (PAL), associated activity energy expenditure savings of several hundred kilocalories/day, and sizable increases in mean height, weight, and triceps skinfold thickness. Controlling for observed frequency of market food consumption, PAL was inversely related to child body size and subcutaneous fat stores and significantly mediated the effects of data collection year on anthropometric indices. These findings indicate that physical activity can considerably influence childhood growth, highlighting the role of energy allocation tradeoffs between physical activity and competing life tasks in shaping patterns of human ontogeny and health. PMID- 29321691 TI - Deciphering the nature of the coral-Chromera association. AB - Since the discovery of Chromera velia as a novel coral-associated microalga, this organism has attracted interest because of its unique evolutionary position between the photosynthetic dinoflagellates and the parasitic apicomplexans. The nature of the relationship between Chromera and its coral host is controversial. Is it a mutualism, from which both participants benefit, a parasitic relationship, or a chance association? To better understand the interaction, larvae of the common Indo-Pacific reef-building coral Acropora digitifera were experimentally infected with Chromera, and the impact on the host transcriptome was assessed at 4, 12, and 48 h post-infection using Illumina RNA-Seq technology. The transcriptomic response of the coral to Chromera was complex and implies that host immunity is strongly suppressed, and both phagosome maturation and the apoptotic machinery is modified. These responses differ markedly from those described for infection with a competent strain of the coral mutualist Symbiodinium, instead resembling those of vertebrate hosts to parasites and/or pathogens such as Mycobacterium tuberculosis. Consistent with ecological studies suggesting that the association may be accidental, the transcriptional response of A. digitifera larvae leads us to conclude that Chromera could be a coral parasite, commensal, or accidental bystander, but certainly not a beneficial mutualist. PMID- 29321692 TI - Geobacteraceae are important members of mercury-methylating microbial communities of sediments impacted by waste water releases. AB - Microbial mercury (Hg) methylation in sediments can result in bioaccumulation of the neurotoxin methylmercury (MMHg) in aquatic food webs. Recently, the discovery of the gene hgcA, required for Hg methylation, revealed that the diversity of Hg methylators is much broader than previously thought. However, little is known about the identity of Hg-methylating microbial organisms and the environmental factors controlling their activity and distribution in lakes. Here, we combined high-throughput sequencing of 16S rRNA and hgcA genes with the chemical characterization of sediments impacted by a waste water treatment plant that releases significant amounts of organic matter and iron. Our results highlight that the ferruginous geochemical conditions prevailing at 1-2 cm depth are conducive to MMHg formation and that the Hg-methylating guild is composed of iron and sulfur-transforming bacteria, syntrophs, and methanogens. Deltaproteobacteria, notably Geobacteraceae, dominated the hgcA carrying communities, while sulfate reducers constituted only a minor component, despite being considered the main Hg methylators in many anoxic aquatic environments. Because iron is widely applied in waste water treatment, the importance of Geobacteraceae for Hg methylation and the complexity of Hg-methylating communities reported here are likely to occur worldwide in sediments impacted by waste water treatment plant discharges and in iron-rich sediments in general. PMID- 29321694 TI - Statistical power to detect violation of the proportional hazards assumption when using the Cox regression model. AB - The use of the Cox proportional hazards regression model is widespread. A key assumption of the model is that of proportional hazards. Analysts frequently test the validity of this assumption using statistical significance testing. However, the statistical power of such assessments is frequently unknown. We used Monte Carlo simulations to estimate the statistical power of two different methods for detecting violations of this assumption. When the covariate was binary, we found that a model-based method had greater power than a method based on cumulative sums of martingale residuals. Furthermore, the parametric nature of the distribution of event times had an impact on power when the covariate was binary. Statistical power to detect a strong violation of the proportional hazards assumption was low to moderate even when the number of observed events was high. In many data sets, power to detect a violation of this assumption is likely to be low to modest. PMID- 29321693 TI - Human mesenchymal stem cells lose their functional properties after paclitaxel treatment. AB - Mesenchymal stem cells (MSCs) are an integral part of the bone marrow niche and aid in the protection, regeneration and proliferation of hematopoietic stem cells after exposure to myelotoxic taxane anti-cancer agents, but the influence of taxane compounds on MSCs themselves remains incompletely understood. Here, we show that bone marrow-derived MSCs are highly sensitive even to low concentrations of the prototypical taxane compound paclitaxel. While MSCs remained metabolically viable, they were strongly impaired regarding both their proliferation and their functional capabilities after exposure to paclitaxel. Paclitaxel treatment resulted in reduced cell migration, delays in cellular adhesion and significant dose-dependent inhibition of the stem cells' characteristic multi-lineage differentiation potential. Cellular morphology and expression of the defining surface markers remained largely unaltered. Paclitaxel only marginally increased apoptosis in MSCs, but strongly induced premature senescence in these stem cells, thereby explaining the preservation of the metabolic activity of functionally inactivated MSCs. The reported sensitivity of MSC function to paclitaxel treatment may help to explain the severe bone marrow toxicities commonly caused by taxane-based anti-cancer treatments. PMID- 29321695 TI - ? AB - This paper explores the mediating role of post-traumatic stress symptoms in the association between sexual abuse and different forms of victimization in dating relationships. The study is based on the Quebec Youth Romantic Relationships Survey, a survey that explores victimization experiences, including childhood sexual abuse, and any emotional, physical, and sexual dating violence in the past 12 months. The sample involved 8,194 students at 34 secondary schools in Quebec. Post-traumatic stress symptoms were evaluated by means of the UCLA PTSD Index. 15 % of girls and 4 % of boys reported a history of child sexual abuse. Path analyses suggest that sexual abuse is positively associated with post-traumatic stress symptoms, which in turn are associated with psychological, physical, and sexual victimization of dating partners. The study has significant implications for prevention of and intervention in dating violence involving victims of sexual abuse. PMID- 29321697 TI - "We Need to Have a Meeting": Public Housing Demolition and Collective Agency in Atlanta, Georgia. AB - The last two decades have witnessed widespread demolition of public housing and a large-scale relocation of public housing residents. Much of the current literature has examined the impact of demolition on relocated residents, focusing primarily on individual outcomes such as employment, housing quality, and health. This article examines the potential collective consequences of relocation by using data from 40 in-depth interviews conducted with relocated public housing residents in Atlanta, Georgia, to examine experiences of civic engagement and tenant activism before and after relocation. Participants describe frequent experiences of civic engagement and tenant activism in their public housing communities prior to demolition and also discuss how these collective actions often translated into meaningful gains for their communities. Participants also describe challenges associated with reestablishing these sources of collective agency in their new, post demolition, private-market rental communities where opportunities for civic engagement and tenant activism were perceived to be limited, where stigma was a barrier to social interaction, and where they experienced significant residential instability. PMID- 29321696 TI - Security in Father-child Relationship and Behavior Problems in Sexually Abused Children. AB - While the influence of mother-child relationships on children's recovery following sexual abuse has been documented, less is known about the possible contribution of father-child relationships on outcomes. The present study explored the contribution of children's perception of security in their relationship to the father on internalizing and externalizing behavior problems, while controlling for sociodemographic variables and variables associated with the mother-child relationship. Participants were 142 children who disclosed sexual abuse involving a perpetrator other than the biological father. Regression analyses indicated that children's perception of security to fathers contributed to the prediction of parental reports of children's behavior problems, even after controlling for maternal psychological distress and perception of security to mothers. PMID- 29321698 TI - Reflections on the XVII World Congress of Psychiatry 2017. PMID- 29321699 TI - The Association Between Childhood Traumatic Events and Headache-Related Parameters in Patients with Migraine: A Cross-Sectional Study in Turkish Population. AB - Introduction: The aim of this study is to investigate the association between childhood traumatic events and headache-related clinical parameters in migraine patients. Methods: 95 patients diagnosed with migraine and 50 healthy controls were included in the study. A socio-demographic form, the Childhood Trauma Questionnaire (CTQ), the Beck Depression Inventory (BDI) and the Beck Anxiety Inventory (BAI) were completed by all participants. Additionally, the Visual Analog Scale (VAS) and the Migraine Disability Assessment Test (MIDAS) were applied to migraine patients. Results: Positive correlations were found between emotional abuse, physical abuse, physical neglect, CTQ total scores, and headache frequency (r=0.33, r=0.24, r=0.26 and r=0.28 respectively) in migraine patients. A positive correlation was found between physical neglect and headache duration (r=0.28). Positive correlations were also found between emotional abuse and physical neglect, and MIDAS total scores (r=0.22 and r=0.23, respectively). Emotional abuse and CTQ total scores were associated with younger mean age of headache onset (r=-0.24 and r=-0.23). Conclusion: Childhood traumatic events are associated with more frequent and more severe headache episodes, and younger headache onset in migraine patients. PMID- 29321700 TI - Validation and Reliability Study of the Turkish Version of the Stigma Scale of Epilepsy. AB - Introduction: We aimed to validate the Turkish version of the Stigma Scale of Epilepsy (SSE) (from Brazil) and present the results. Method: The SSE was completed by 33 patients with epilepsy (PWE), 25 of the patients' family members, and 23 people from the community. Subjects were interviewed on an individual basis; a physician read the questions and the subjects wrote the answers on a sheet. The form was the same for all subjects. In addition, the Beck Depression Inventory (BDI) and the Hamilton Anxiety Inventory (HAI), Short Form-36 (SF-36) were completed by the subjects. Results: We interviewed 81 subjects. The internal consistency of the SSE showed Cronbach's alpha coefficients of 0.785 for the PWE, 0.733 for the family members and 0.798 for the people in community. The mean scores on the SSE were 57 for patients, 66 for family members and 65 for the community where a score of 0 would suggest no stigma and 100 would indicate maximum stigma. The SSE scores of patients, family members and the community who believed that patients with epilepsy are stigmatized or rejected were higher than the SSE scores of who did not believe it. Although there were strong correlation between high SSE scores and poor functionality and BDI; there were not any correlation between with SSE and HAI, age of epilepsy onset, time of epilepsy, education, and social class. Conclusion: The SSE has satisfactory content validity and high internal consistency. It allows for the quantification of the real perception of the epilepsy associated stigma. Prejudice and discrimination are often worse than the seizures themselves in terms of the impact on the daily lives of people with epilepsy and their families. Understanding this aspect of epilepsy is important for reducing the burden of epilepsy, and the SSE can be used for cross cultural, media, and social campaigns aimed at minimizing the negative influences of stigma. PMID- 29321701 TI - Psychotherapy: Playing the Three Monkeys in Mental Health Service Provision? AB - Introduction: The purpose of the present study was to investigate the effect of sociodemographic variables on the knowledge of, demand for, and reception of psychotherapy as a treatment modality among psychiatric outpatients. Methods: Participants of the study were 240 psychiatric outpatients (170 females and 70 males). Data for mental health services were collected from a subgroup of 103 "experienced" patients (42.9%) having had received psychiatric help previously. All participants were administered a questionnaire containing questions about various forms of psychiatric services. Results: Of all participants, 40.83% reported having heard of psychotherapy a few of times before, mostly (44.58%) from the media and only 3.33% from a mental health professional. Most participants with previous applications to psychiatric outpatient clinic had first received mental health service from a psychiatrist (93.2%) and at a state hospital (72.8%), and a small minority (17.4%) had subsequently received care from a psychologist. None had demanded to, but 5 patients (4.86%) had been recommended to receive psychotherapy by mental health professionals. Of these experienced patients, 20 (19.41%) have an idea that the interviews they had previously at the outpatient clinics were sort of psychotherapeutic interviews; yet, only 7 (6.79%) retained the same idea after reading the definition of appropriate psychotherapy written on the questionnaire. All of these patients declared that they have received both their medication and psychotherapy at the same time. Thus, only 2.91% of 240 participants received psychotherapy that corresponds to the given definition. Conclusions: Findings from this study suggest that mental health care is mostly performed by psychiatrists alone, with a limited contribution by psychologists. Consequently, the choice of treatment is solely pharmacotherapy for most patients, while psychotherapy as a treatment modality is neither offered nor demanded in routine practice. PMID- 29321702 TI - Carpal Tunnel Syndrome in Obstructive Sleep Apnea Patients. AB - Introduction: Carpal tunnel syndrome (CTS) is the most common entrapment neuropathy of the upper extremity. It is usually associated with the compression of the median nerve in the median groove. Because the main symptoms of CTS pain and numbness worsen at night, sleep disorders in CTS patients and the impact of preferred sleeping position on CTS development have been formerly studied. However, to the best of our knowledge, this is the first study assessing the frequency of CTS in obstructive sleep apnea (OSA) patients. This study aimed to determine the frequency of CTS in OSA patients and evaluate the causative relation between the two diseases. Methods: Records of individuals who were admitted to our sleep laboratory were retrospectively scanned. Eighty patients who were diagnosed with OSA and did not have comorbidities that might cause OSA (e.g., diabetes mellitus, hypothyroiditis, rheumatic diseases, and cervical radiculopathy) were included in the study along with 80 healthy controls who matched for age, sex, and BMI of OSA patients. To maintain observer blindness, patients were not questioned regarding their symptoms or the clinical data that would be used in the study. All participants underwent nerve conduction studies. Those who were diagnosed with CTS were questioned regarding CTS symptoms and the preferred sleeping position. Subsequently, patients were given the Boston CTS questionnaire. Results: CTS frequency in OSA patients was found to be 27.5%. There was no significant relation between preferred sleeping position or being a manual worker and having CTS. Conclusion: CTS frequency in OSA patients is significantly higher than that in healthy individuals. In contrast to previous studies that have been performed in the absence of polysomnographic and electrophysiological data, in our study biomechanical factors were not associated with CTS presence. Therefore, we conclude that intermittent hypoxemia is the main etiological factor for CTS in OSA patients. Inflammation may be a common factor for etiopathogenesis for both diseases, but this hypothesis needs further investigation. PMID- 29321703 TI - Executive Functions of Obsessive Compulsive Disorder and Panic Disorder Patients in Comparison to Healty Controls. AB - Introduction: Patients with obsessive compulsive disorder (OCD) have impaired cognitive functions, including attention, verbal and visual memory, and visual spatial abilities as well as executive function But some studies did not show any disturbance in executive function of patients with OCD. To date, only few studies have been conducted on neuropsychological functioning of patients with panic disorder (PD). There are limited studies to reach a definite conclusion on executive functions of patients with OCD and those with PD. In this study, we aimed to measure executive functions of patients with OCD and those with PD compared with those of healthy controls. Although there are many studies on cognitive functions of patients with OCD, there appears to be no consistency in results and no findings have been obtained to enable us to reach definite conclusions. Although there are very few studies on neuropsychological functions of patients with PD, impairments on a set of cognitive functions have been demonstrated. To date, no finding with respect to impairment in executive functions of patients with PD has been published. PD and OCD are disorders manifesting similar characteristics, with the presence of anxiety and avoidance behavior. Besides this, patients with OCD also have symptoms such as obsessions and compulsions that are characteristics of this disorder. We aim to compare executive functions in the three groups (patients with OCD, those with PD, and healthy controls) in this study. Method: Seventeen patients with OCD and 15 patients with PD who were diagnosed according to Diagnostic and Statistical Manual of Mental Disorder -IV-TR (DSM-IV-TR) and 26 healthy control subjects were included in this study. Patients who used medication as well as those with medical illnesses and Axis-I comorbidities were excluded. The healthy control group subjects were matched with the patients in terms of age, gender, and education. Structured Clinical Interview for DSM-IV Axis-I Disorders-Clinical Version (SCID-I), Hamilton Depression Rating Scale (HDRS), and Yale-Brown obsessive compulsive scale tests (Y-BOCS) were administered to the patients. Trail Making Tests (TMT), verbal fluency tests (Controlled Oral Word Association Test and Categorical Naming), Stroop Test, and Wisconsin Card Sorting Test (WCST) were administered to the study groups. Results: According to our results, there was no statistically significant difference between the three study groups with respect to executive functions. There was also no significant correlation between executive tests' results and Y-BOCS'in the OCD group. Conclusion: The results of the PD group are in line with that reported in literature. The results of the OCD group can be explained by a lack of medication usage and any comorbidity including depression. A small sample size is the major limitation of our study. PMID- 29321704 TI - Efficacy and Safety of Warfarin Experience in a Stroke Polyclinic in Stroke Patients. AB - Introduction: Cardioembolic stroke is associated with high morbidity and mortality, with an increased risk of recurrent stroke. Oral anticoagulation is highly effective in reducing the risk of stroke and mortality compared with placebo. Our study aimed to highlight the safety and efficacy of warfarin by analyzing the 20-year follow-up of patients on warfarin therapy. Methods: A retrospective observational study was performed with ischemic stroke patients receiving warfarin at our stroke polyclinic between 1992 and 2012. The CHADS2 scoring system was used to assess the annual risk of stroke, and a bleeding risk score termed the HAS-BLED scoring system was calculated to estimate the risk of bleeding. Results: In our study, 394 patients who were receiving warfarin therapy were included. The patients' median age was 66.35+/-13.602 years. The median follow-up period of the patients was 4.85+/-3.572 years. During follow-up, 79.9% of the patients revealed no complication on warfarin therapy. Thirty-seven patients had hemorrhagic complications; among these, 33 had systemic complications (including nose bleeding, hematuria, hematochezia) and 4 patients had intracerebral bleeding. The INR value related to hemorrhagic complications was >2.5 in 75.8% of 33 patients having systemic bleeding and in 75% of 4 patients having intracerebral bleeding. The HAS-BLED risk score was >3 in 72.7% of the patients experiencing systemic bleeding complications. Forty-one patients had a recurrent ischemic stroke/TIA during the follow-up. Of this patient group, the INR value at the time of recurrent ischemic stroke was <2 in 41 patients (92.7%), while the CHADS2 risk score was low in this group. Sixty-eight patients were receiving antiplatelet therapy with warfarin. In these groups, 16 patients experienced a complication during the follow-up (bleeding/ischemic), while 10 patients had bleeding complications (systemic and intracerebral). Conclusion: The results suggest that the effectiveness and safety of warfarin depend on maintaining its dose at sufficient levels to keep the patient's INR within the therapeutic range. PMID- 29321705 TI - Attention-Deficit/Hyperactivity Disorder and Nicotine Dependence in Adults. AB - Introduction: The aim of this study is to assess clinical characteristics and smoking profiles of individuals diagnosed with attention-deficit/hyperactivity disorder (ADHD) and compare their nicotine dependence status with healthy controls for better understanding the mutual and complex relationship between ADHD and smoking. Methods: We included the following participants in the study: 40 adults with the diagnosis of ADHD, 40 participants who visited the smoking cessation polyclinic without any psychiatric disorders, and 40 healthy controls. A sociodemographic data form, Wender Utah Rating Scale (WURS), Adult ADD/ADHD Diagnosis and Evaluation Inventory, and Fagerstrom Nicotine Dependence Test (FNDT) were administered to the participants. Results: Mean age of the ADHD, nicotine dependence, and control groups was 28.68+/-7.22, 34.17+/-8.60, 33.70+/ 7.45 years, respectively. Percentages of females and males were 27.5% and 72.5% in the ADHD group, 50% and 50% in the nicotine dependence group, 47.5% and 52.5% in the control group. The attention-deficit scores in the ADHD, nicotine dependence, and control groups were 21.18+/-5.05, 7.23+/-3.96, 4.75+/-2.65, respectively (p=0.001), whereas the hyperactivity scores were.73+/-5.84, 6.43+/ 4.2, and 3.58+/-2.27, respectively (p=0.001). The related features scores were 56.53+/-12.96, 24.30+/-13.93, and 13.13+/-6.11, respectively (p=0.001), whereas the WURS scores were 61.88+/-12.69, 23.03+/-16.07, 11.90+/-8.15, respectively (p=0.001). FNDT scores in ADHD and nicotine dependence groups were 5.83+/-2.11 and 6.20+/-2.74, respectively (p=0.495). Conclusion: Considering the argument of ADHD being an independent risk factor for nicotine dependence, we think the co occurrence of the smoking addiction and ADHD symptoms in the context of dopamine dysregulation is important in the clinical setting. Treatment modalities and of preventive strategies should be considered while keeping this in mind. PMID- 29321706 TI - Validity and Reliability of the Turkish Version of the Multiple Sclerosis-Related Symptom Checklist. AB - Introduction: Multiple sclerosis (MS) is a disease that causes different symptoms in each attack and has an individual-specific course. Detailed questioning and recording of MS symptoms is important for developing a management plan for individual-specific symptoms. The present study was planned to evaluate the validity and reliability of the Turkish version of "Multiple Sclerosis-Related Symptom Checklist" (MS-RS), which has been developed for patients to personally follow-up the symptoms they experience. Methods: The study was conducted in the outpatient MS clinic of the Istanbul University Istanbul Faculty of Medicine between January and October 2013 and included a sample group of 148 patients who were aged >18 years, could easily communicate, had a definite diagnosis of MS, and had no other medical problems besides MS. The data were collected using patient information forms, including sociodemographic and MS-RS forms. To assess the linguistic validity, the Likert-type scale with 26 items was first applied to a group of 30 patients. Confirmatory factor analysis was used to test the construct validity. Furthermore, the correlation of the scale with the Expanded Disability Status Scale (EDSS), Hospital Anxiety and Depression Scale (HADS), Mini-Mental Status Evaluation (MMSE) scale, and Multiple Sclerosis Quality of Life Scale-54 (MSQL-54) was evaluated. Results: The scale comprised five factors with factor loading values between 0.39 and 0.86. The item-total correlation coefficients revealed values of 0.27-0.88. The Cronbach's alpha reliability coefficient for the whole scale was determined to be 0.89 and for the subscales to be 0.60-0.85. The test-retest analysis revealed no difference between the scale and its subscales in terms of invariance with time (p>0.05). Moreover, MS RS was significantly correlated with EDSS, HADS, MMSE, and MSQL-54. Conclusion: The Turkish version of MS-RS is a valid and reliable scale that can be used in the Turkish population. PMID- 29321707 TI - Validity and Reliability of the Turkish Version for DSM-5 Level 2 Anger Scale (Child Form for Children Aged 11-17 Years and Parent Form for Children Aged 6-17 Years). AB - Introduction: This study aimed to assess the validity and reliability of the Turkish version of Diagnostic and Statistical Manual of Mental Disorders (DSM-5) Level 2 Anger Scale. Methods: The scale was prepared by translation and back translation of DSM-5 Level 2 Anger Scale. Study groups consisted of a clinical sample of cases diagnosed with depressive disorder and treated in a child and adolescent psychiatry unit and a community sample. The study was continued with 218 children and 160 parents. In the assessment process, child and parent forms of DSM-5 Level 2 Anger Scale and Children's Depression Inventory and Strengths and Difficulties Questionnaire-Parent Form were used. Results: In the reliability analyses, the Cronbach alpha internal consistency coefficient values were found very high regarding child and parent forms. Item-total score correlation coefficients were high and very high, respectively, for child and parent forms indicating a statistical significance. As for construct validity, one factor was maintained for each form and was found to be consistent with the original form of the scale. As for concurrent validity, the child form of the scale showed significant correlation with Children's Depression Inventory, while the parent form showed significant correlation with Strengths and Difficulties Questionnaire Parent Form. Conclusion: It was found that the Turkish version of DSM-5 Level 2 Anger Scale could be utilized as a valid and reliable tool both in clinical practice and for research purposes. PMID- 29321709 TI - The Probable Prevalence and Sociodemographic Characteristics of Specific Learning Disorder in Primary School Children in Edirne. AB - Introduction: The aim of this study was to research the probable prevalence of Specific Learning Disorder (SLD) in primary school children in Edirne City and the relationships with their sociodemographic characteristics. Methods: The sample of our study was composed of 2,174 children who were educated in primary schools in second, third, and fourth grades in the academic year 2013-2014 in Edirne City. The teachers and parents of these children were given Specific Learning Difficulties Symptom Scale, Learning Disabilities Symptoms Checklist (teacher and parent forms), and sociodemographic data forms to fill in. Binary logistic regression analysis was used to assess the risk factors for SLD. Results: Our study revealed that the probable prevalence of SLD was 13.6%; 17% for boys and 10.4% for girls. Reading impairment was 3.6%, writing impairment was 6.9%, and mathematic impairment was 6.5%. We determined that consanguineous marriages, low income, history of neonatal jaundice were found as risks for SLD; born by caesarean, developmental delay of walking, and history of neonatal jaundice were found as risks for mathematic impairment. A history of learning difficulties of parents was a risk factor for forming SLD and subtypes. Conclusion: Our findings were consistent with other study results about the prevalence of SLD. The relationships between the probable prevalence rates and sociodemographic data were discussed. PMID- 29321708 TI - Holter Monitorisation Results in Early Period of Acute Ischemic Stroke. AB - Introduction: Paroxysmal atrial fibrillation (PAF) has a similar risk with persistent AF for ischemic stroke. Holter monitorization (HM) and other long-term monitorization methods increased the detection of PAF and short-lasting runs of tachyarrhythmias. Their classification as PAF and roles in the etiology of ischemic stroke is controversial. In this study, we aimed to investigate the frequency of any duration of PAF and clinical characteristics of the patients with acute ischemic stroke who have undergone 24-hrs HM. Methods: Patients with acute ischemic stroke and transient ischemic attack (TIA) hospitalized in the Neurology ward and undergone 24-hrs of HM during their hospital stay were included in the study. HM reports, clinical, and laboratory characteristics were analyzed, retrospectively. Patients were grouped into three based on HM: 1st group, without PAF; 2nd group, PAF >30 seconds (s) and 3rd group, PAF<30s. Results: PAF of any duration was detected in 18.8% (n=49) of 261 patients. The duration of PAF was <30s in 16.1% (n=42) and >30s in 2.7% (n=7) of the patients. The mean age, left atrium diameter and CHA2DS2-VASc scores of the second group were significantly higher than the first group (p<0.001, p<0.001 and p=0.007; respectively). The mean age, left atrium diameter, modified Rankin Scores (mRS), and CHA2DS2-VASc scores of the third group were significantly higher than the first group (p<0.001; for all). There was no difference between the second and the third groups in means of mean age, left atrial diameter, MRS, and CHA2DS2 VASc scores (p<0.017, for all). Conclusion: In this study, 24-hrs HM in the early period of acute ischemic stroke results yielded a high frequency of PAF<30s and predictive features were in parallel with the literature. PMID- 29321710 TI - Cytokine Polymorphism and HLA Genotyping in Patients with Temporal Lobe Epilepsy Related to Hippocampal Sclerosis. AB - Objective: Hippocampal sclerosis (HS) is the most common pathological substrate associated with mesial temporal lobe epilepsy (MTLE), where inflammatory processes are known to play an increasingly important role in the pathogenesis. To further investigate the role of the immune system, both cytokine gene polymorphisms and human leukocyte antigen (HLA) genotyping in patients with MTLE HS were investigated. Methods: The DNA samples of 100 patients with MTLE-HS and 201 healthy individuals were genotyped for cytokines (IL-6,IL-10, TNF-alpha, TGF beta1 and IFN-gamma) and HLA using polymerase chain reaction (PCR)-SSP and SSO methods. The results were statistically analyzed in patient and healthy control groups and then according to the presence of febrile seizures (FS) in the patient group. Results: Analysis of cytokine genotyping did not reveal any significant difference between patients with MTLE-HS and controls and patients with or without FS. However, the HLA DRB1*13 allele was found to be more frequent in the patient population after Bonferroni correction. Conclusion: This study suggests the possible role of HLA in the pathogenesis of MTLE-HS, although it failed to show any relationship with the cytokine system. However, data regarding the role of HLA are still lacking, and further studies are necessary to verify our results. PMID- 29321711 TI - Validity and Reliability of the Turkish version of DSM-5 Social Anxiety Disorder Severity Scale- Child Form. AB - Introduction: This study aimed to assess the validity and reliability of the Turkish version of the Diagnostic and statistical manual of Mental Disorders. (5th ed.) (DSM-5) Social Anxiety Disorder Severity Scale- Child Form. Method: The scale was prepared by carrying out the translation and back translation of the DSM-5 Social Anxiety Disorder Severity Scale - Child Form. The study group consisted of 31 patients that had been treated in a child psychiatry unit and diagnosed with social anxiety disorder and 99 healthy volunteers that were attending middle or high school during the study period. For the assessment, the Screen for Child Anxiety and Related Emotional Disorders (SCARED) was also used along with the DSM-5 Social Anxiety Disorder Severity Scale - Child Form. Results: Regarding reliability analyses, Cronbach's alpha internal consistency coefficient was calculated as 0.941, while item-total score correlation coefficients were measured between 0.566 and 0.866. A test-retest correlation coefficient was calculated as r=0.711. As for construct validity, one factor that could explain 66.0 % of the variance was obtained. As for concurrent validity, the scale showed a high correlation with the SCARED. Conclusion: It was concluded that the Turkish version of the DSM-5 Social Anxiety Disorder Severity Scale - Child Form could be utilized as a valid and reliable tool both in clinical practice and for research purposes. PMID- 29321713 TI - Two Branches of the Same Tree: A Brief History of Turkish Neuropsychiatric Society (1914-2016). AB - Introduction: The aim of this article is to provide a brief history of Turkish Neuropsychiatric Society by examining its institutional background, the milestones within its history, and the major activities undertaken by the organization during the years. Methods: Firstly, the books, journals, and articles that are related to the history of psychiatry and neurology in Turkey have been reviewed and the information that can explain the history of the society has been brought together. The founding records, regulations, journals, and congress booklets of Tababet-i Akliye ve Asabiye Cemiyeti (Society of Psychiatry and Neurology) have been examined and the newspapers of the period have been reviewed to collect news concerning congresses and meetings. Besides, oral history interviews have been conducted with regard to the recent history of the society. Results: Although the roots of neuropsychiatry in Turkey date back to the mid-nineteenth century, the first society, which was called Tababet-i Akliye ve Asabiye Cemiyeti (Society of Psychiatry and Neurology), was founded in 1914. The organization now maintains its activities under the name Turk Noropsikiyatri Dernegi (Turkish Neuropsychiatric Society). Turkish Neuropsychiatric Society has organized monthly meetings, conferences, and national congresses and has published numerous scientific journals in the field of neuropsychiatry over the past century. Conclusion: As one of the earliest societies of medical specialty in Turkey, Turkish Neuropsychiatric Society has played a crucial role in the development and institutionalization of psychiatry and neurology. The administration and activities of the society occurred in the following institutions respectively: Toptasi Asylum (1914-1925), Bakirkoy (1925 1955), and Capa (Psychiatry Clinic of Medical Faculty of Istanbul University). The society was mainly composed of psychiatrists and neurologists; however, neurosurgeons, psychologists, and neuropsychologists also attended the congresses and meetings held by the group. PMID- 29321712 TI - Sensorimotor Integration During Motor Learning: Transcranial Magnetic Stimulation Studies. AB - The effect of sensory signals coming from skin and muscle afferents on the sensorimotor cortical networks is entitled as sensory-motor integration (SMI). SMI can be studied electrophysiologically by the motor cortex excitability changes in response to peripheral sensory stimulation. These changes include the periods of short afferent inhibition (SAI), afferent facilitation (AF), and late afferent inhibition (LAI). During the early period of motor skill acquisition, motor cortex excitability increases and changes occur in the area covered by the relevant zone of the motor cortex. In the late period, these give place to the morphological changes, such as synaptogenesis. SAI decreases during learning the motor skills, while LAI increases during motor activity. In this review, the role of SMI in the process of motor learning and transcranial magnetic stimulation techniques performed for studying SMI is summarized. PMID- 29321714 TI - Cavum Vergae, Liability, and Steroid Treatment: Manic Episode, Brain Imaging Findings, and Clinical Follow-up of a Systemic Lupus Erythematosus Case. AB - Systemic lupus erythematosus (SLE) or Lupus is a chronic and idiopathic autoimmune connective tissue disease that involves several organs and organ systems. SLE may lead to a group of psychiatric manifestations, including delirium, anxiety disorders, cognitive dysfunction, mood disorders, and psychosis, which are caused by organic or non-organic factors. In addition, it is thought that the most common cause of neuropsychiatric lupus is corticosteroid use; central nervous system involvement and inflammatory processes also have an important role in the development of psychiatric manifestations. In other respects, structural brain abnormalities induce proneness to psychotic and manic symptoms. Along with this proneness, cavum vergae, an anomaly closely related to the anatomic areas associated with mood regulation, may precipitate manic symptoms. In this case report, we present a manic episode case emerging after delirium, with a 1-year history of SLE, which has recently been diagnosed with cavum vergae and discuss the process of infection and corticosteroid treatment, which contributed to the proneness effect of a structural brain anomaly. PMID- 29321715 TI - A Patient with Neuro-Behcet's Syndrome Presenting with Peripheral Nerve Involvement. PMID- 29321717 TI - Engaging Canadian First Nations Women in Cervical Screening through Education. AB - Recognition of the need to decrease cervical cancer rates in Indigenous populations has been ongoing-yet few successful interventions have been reported. In addition, literature addressing the challenges and barriers associated with designing screening programs aimed to specifically reach Indigenous women is limited. Here, we report findings from a mixed methods cervical cancer research project conducted in partnership with 10 First Nations communities in northwest Ontario, Canada. Individual interviews with community health professionals (the majority of whom identified as First Nations) stressed that awareness of cervical screening benefits is lacking. In contrast, focus group participants (women with no formal health education) emphasized the desire to learn more about the science of human papillomavirus (HPV), and that a positive HPV or abnormal Papanicolaou test need not mean a woman will undoubtedly develop cervical cancer. Both the health professionals and the focus group participants highlighted that sexual health education must start early, in schools, preferably before girls are sexually active and that it has to continue throughout life to create a screening culture with a focus on women's wellbeing. Both interview and focus group participants highlighted that sexual health education must start early, in schools, preferably before girls are sexually active and that it has to continue throughout life to create a screening culture with a focus on women's wellbeing. Health professionals elaborated mainly on special events for community women whereas focus group participants also recognized the need to include community men in health education particularly for de-stigmatizing the sexually-transmitted HPV infection. PMID- 29321718 TI - A novel Notch1 missense mutation (C1133Y) in the Abruptex domain exhibits enhanced proliferation and invasion in oral squamous cell carcinoma. AB - Background: Notch1 has been regarded as a fundamental regulator in tissue differentiation and stem cell properties. Recently, Notch1 mutations have been reported intensively both in solid tumors and in hematopoietic malignancies. However, little is known about the biological effect and the clinical implication of these reported mutations. Previously, we discovered several missense mutations in the Notch1 receptor in a Chinese population with oral squamous cell carcinoma (OSCC). Methods: We selected a 'hotspot' mutation in the Abruptex domain (C1133Y). The expression of Notch1 was determined by western blot and real-time qPCR in OSCC cell lines transfected with pcDNA3.1-Notch1WT, pcDNA3.1 Notch1C1133Y, or pcDNA3.1 empty vector. CCK-8 assays were used to assess cell proliferation. Flow cytometry and western blot were used to confirm the alteration of cell cycle after transfection. Transwell assays and the detection of Epithelial-to-mesenchymal transition (EMT) markers were used to determine the invasive ability. The effects of Notch1 C1133Y mutation were analyzed by Immunofluorescence staining and the expression of EGFR-PI3K/AKT signaling. Results: We demonstrated that Notch1C1133Y mutation inactivated the canonical Notch1 signaling. We identified an oncogenic phenotype of this mutation by promoting cell proliferation, invasion and by inducing EMT in OSCC cell lines. We found that the Notch1C1133Y mutation exhibited a decreased S1-cleavage due to the impaired transport of Notch1 protein from the endoplasmic reticulum (ER) to the Golgi complex, which was consistent with the observation of the failure of the Notch1C1133Y mutated receptor to present at the cell surface. Importantly, the mutated Notch1 activated the EGFR-PI3K/AKT signaling pathway, which has been confirmed as an overwhelming modulator in OSCC. Conclusions: Taken together, our findings revealed for the first time a novel Notch1 mutation that enhances proliferation and invasion in OSCC cell lines. The Notch1 C1133Y mutation impairs the processing of notch1 protein and the critical links between the mutated Notch1 and the activated EGFR-PI3K/AKT signaling pathway. PMID- 29321720 TI - Prevalence of Pregnancy Involvement Among Canadian Transgender Youth and its Relation to Mental Health, Sexual Health, and Gender Identity. AB - While little research has been conducted into the reproductive experiences of transgender people, available evidence suggests that like cisgender people, most transgender people endorse a desire for these experiences. This study explores the pregnancy experiences and related health factors among transgender and gender diverse 14-25 year olds using a national Canadian sample (N = 923). Results indicated that 26 (5%) transgender youth reported a pregnancy experience in the past and the prevalence among 14-18 year olds was comparable to population-based estimates using the same question in the British Columbia Adolescent Health Survey. Transgender youth with a history of pregnancy involvement reported a diverse range of gender identities, and this group did not differ from the remainder of the sample on general mental health, social supports, and living in felt gender. This group did report over six times greater likelihood of having been diagnosed with a sexually transmitted infection by a doctor (19%), but did they not differ in reported contraception use during last sexual intercourse. These findings suggest that pregnancy involvement is an issue that should not be overlooked by health professionals working with transgender youth and that this group has particular sexual health needs. PMID- 29321719 TI - Cancer chemoprevention and therapy using chinese herbal medicine. AB - Traditional Chinese medicine (TCM) plays an indispensable role in cancer prevention and treatment. Chinese herbal medicine (CHM) is a key component of TCM and has been practiced for thousands of years. A number of naturally occurring products from Chinese herbs extracts exhibit strong inhibitory properties against carcinogenesis, including CHM single-herb extracts, CHM-derived active components, and CHM formulas (the polyherbal combinations), which regulate JAK/STAT, MAPK, and NF-?B pathways. The present review aims to report the cancer preventive effect of CHM with evidence from cell-line, animal, epidemiological, and clinical experiments. We also present several issues that have yet to be resolved. In the future, cancer prevention by CHM will face unprecedented opportunities and challenges. PMID- 29321721 TI - Antigen 85B peptidomic analysis allows species-specific mycobacterial identification. AB - Background: Nontuberculous mycobacteria (NTM)-mediated infections are a growing cause of worldwide morbidity, but lack of rapid diagnostics for specific NTM species can delay the initiation of appropriate treatment regimens. We thus examined whether mass spectrometry analysis of an abundantly secreted mycobacterial antigen could identify specific NTM species. Methods: We analyzed predicted tryptic peptides of the major mycobacterial antigen Ag85B for their capacity to distinguish Mycobacterium tuberculosis and three NTM species responsible for the majority of pulmonary infections caused by slow-growing mycobacterial species. Next, we analyzed trypsin-digested culture supernatants of these four mycobacterial species by liquid chromatography-tandem mass spectrometry (LC-MS/MS) to detect candidate species-specific Ag85B peptides, the identity of which were validated by LC-MS/MS performed in parallel reaction monitoring mode. Results: Theoretical tryptic digests of the Ag85B proteins of four common mycobacterial species produced peptides with distinct sequences, including two peptides that could each identify the species origin of each Ag85B protein. LC-MS/MS analysis of trypsinized culture supernatants of these four species detected one of these species-specific signature peptides in each sample. Subsequent LC-MS/MS analyses confirmed these results by targeting these species specific Ag85B peptides. Conclusions: LC-MS/MS analysis of Ag85B peptides from trypsin-digested mycobacterial culture supernatants can rapidly detect and identify common mycobacteria responsible for most pulmonary infections caused by slow-growing mycobacteria, and has the potential to rapidly diagnose pulmonary infections caused by these mycobacteria through direct analysis of clinical specimens. PMID- 29321722 TI - Distinct virulent network between healthcare- and community-associated Staphylococcus aureus based on proteomic analysis. AB - Background: Staphylococcus aureus (S. aureus or SA) is a leading cause of healthcare-associated (HA-) and community-associated (CA) infection. HA-SA isolates usually cause nosocomial pneumonia, bloodstream infections, catheter related urinary tract infections, etc. On the other hand, CA-SA isolates usually cause highly fatal diseases, such as SSTIs as well as post influenza necrotic hemorrhagic pneumonia. The differences of the infection types are partially due to the unique characteristics between HA-SA and CA-SA isolates. For example, HA SA isolates showed strong adherence to host epithelial cells, while CA-SA isolates displayed higher virulence due to the increased activity of the important quorum-sensing system accessory gene regulator (agr). Thus, the aim of this study was to characterize the proteomic difference between HA-SA and CA-SA lineage. Methods: In this study, the extracted peptides from those representative strains were analyzed by LC-MS/MS. The protein-protein interaction network was constructed by bioinformatics and their expressions were verified by RT-PCR and Western blot. Results: We demonstrated that Agr system (AgrA and AgrC) and its interactive factors (PhoP, SrrB, YycG, SarX, SigB and ClpP) based on the protein protein interaction network were expressed significantly higher in the epidemic Chinese CA-SA lineage ST398 compared to HA-SA lineage ST239 by LC-MS/MS. We further verified the increased transcription of all these genes in ST398 by RT PCR, suggesting that the higher expression of these genes/proteins probably play role in the acute infection of CA-SA. Moreover, surface-related proteins (FnbpA, SpA, Atl, ClfA, IsaA, IsaB, LtaS, SsaA and Cna) that are repressed by the Agr system have significantly higher expression in the epidemic Chinese HA-SA clone ST239 in comparison to CA-SA lineage ST398 by LC-MS/MS. Furthermore, we confirmed the significantly increased expression of two important adhesive proteins (Atl and ClfA) in ST239 by Western blot, which may contribute to the durative infection of HA-SA. Conclusion: The results suggest that the different proteomic profile, at least partially, contribute to the pathogenic differences between HA SA and CA-SA. PMID- 29321724 TI - Netrin-1 Prevents Rat Primary Cortical Neurons from Apoptosis via the DCC/ERK Pathway. AB - In the nervous system, Netrin-1 serves as a neural guide, mediating the neuronal development. However, it remains blurred whether Netrin-1 can protect neurons from apoptosis induced by cerebral stroke. In the current study, the cultured rat primary cortical neurons were transfected with Netrin-1-encoding lentivirus before the oxygen-glucose-deprivation (OGD) treatment. Cell death and apoptosis were evaluated by lactate dehydrogenase (LDH) release and flow cytometry. We found that Netrin-1 attenuated OGD-induced cell death and neuronal apoptosis at 24 h after OGD treatment, and that the overexpression of Netrin-1 activated the ERK signaling pathway. These effects were partly abolished by blocking its receptor deleted in colorectal cancer (DCC) or U0126, an inhibitor of the ERK signaling pathway. Netrin-1 overexpression in neurons elevated the expression of DCC, on mRNA level and protein level. Netrin-1 also reduced DNA damage. Taken together, our findings suggest that Netrin-1 attenuates cell death and neuronal apoptosis via the DCC/ERK signaling pathway in the cultured primary cortical neurons after OGD injury, which may involve the mediation of DNA damage in the neurons. PMID- 29321723 TI - Remodeling Functional Connectivity in Multiple Sclerosis: A Challenging Therapeutic Approach. AB - Neurons in the central nervous system are organized in functional units interconnected to form complex networks. Acute and chronic brain damage disrupts brain connectivity producing neurological signs and/or symptoms. In several neurological diseases, particularly in Multiple Sclerosis (MS), structural imaging studies cannot always demonstrate a clear association between lesion site and clinical disability, originating the "clinico-radiological paradox." The discrepancy between structural damage and disability can be explained by a complex network perspective. Both brain networks architecture and synaptic plasticity may play important roles in modulating brain networks efficiency after brain damage. In particular, long-term potentiation (LTP) may occur in surviving neurons to compensate network disconnection. In MS, inflammatory cytokines dramatically interfere with synaptic transmission and plasticity. Importantly, in addition to acute and chronic structural damage, inflammation could contribute to reduce brain networks efficiency in MS leading to worse clinical recovery after a relapse and worse disease progression. These evidence suggest that removing inflammation should represent the main therapeutic target in MS; moreover, as synaptic plasticity is particularly altered by inflammation, specific strategies aimed at promoting LTP mechanisms could be effective for enhancing clinical recovery. Modulation of plasticity with different non-invasive brain stimulation (NIBS) techniques has been used to promote recovery of MS symptoms. Better knowledge of features inducing brain disconnection in MS is crucial to design specific strategies to promote recovery and use NIBS with an increasingly tailored approach. PMID- 29321725 TI - alpha-Synuclein Dimers Impair Vesicle Fission during Clathrin-Mediated Synaptic Vesicle Recycling. AB - alpha-Synuclein is a presynaptic protein that regulates synaptic vesicle (SV) trafficking. In Parkinson's disease (PD) and several other neurodegenerative disorders, aberrant oligomerization and aggregation of alpha-synuclein lead to synaptic dysfunction and neurotoxicity. Despite evidence that alpha-synuclein oligomers are generated within neurons under physiological conditions, and that altering the balance of monomers and oligomers contributes to disease pathogenesis, how each molecular species of alpha-synuclein impacts SV trafficking is currently unknown. To address this, we have taken advantage of lamprey giant reticulospinal (RS) synapses, which are accessible to acute perturbations via axonal microinjection of recombinant proteins. We previously reported that acute introduction of monomeric alpha-synuclein inhibited SV recycling, including effects on the clathrin pathway. Here, we report the effects of alpha-synuclein dimers at synapses. Similar to monomeric alpha-synuclein, both recombinant alpha-synuclein dimers that were evaluated bound to small liposomes containing anionic lipids in vitro, but with reduced efficacy. When introduced to synapses, the alpha-synuclein dimers also induced SV recycling defects, which included a build up of clathrin-coated pits (CCPs) with constricted necks that were still attached to the plasma membrane, a phenotype indicative of a vesicle fission defect. Interestingly, both alpha-synuclein dimers induced longer necks on CCPs as well as complex, branching membrane tubules, which were distinct from the CCPs induced by a dynamin inhibitor, Dynasore. In contrast, monomeric alpha synuclein induced a buildup of free clathrin-coated vesicles (CCVs), indicating an inhibition of clathrin-mediated endocytosis at a later stage during the clathrin uncoating process. Taken together, these data further support the conclusion that excess alpha-synuclein impairs SV recycling. The data additionally reveal that monomeric and dimeric alpha-synuclein produce distinct effects on clathrin-mediated endocytosis, predicting different molecular mechanisms. Understanding what these mechanisms are could help to further elucidate the normal functions of this protein, as well as the mechanisms underlying PD pathologies. PMID- 29321726 TI - The Role of L-type Calcium Channels in Olfactory Learning and Its Modulation by Norepinephrine. AB - L type calcium channels (LTCCs) are prevalent in different systems and hold immense importance for maintaining/performing selective functions. In the nervous system, CaV1.2 and CaV1.3 are emerging as critical modulators of neuronal functions. Although the general role of these calcium channels in modulating synaptic plasticity and memory has been explored, their role in olfactory learning is not well understood. In this review article we first discuss the role of LTCCs in olfactory learning especially focusing on early odor preference learning in neonate rodents, presenting evidence that while NMDARs initiate stimulus-specific learning, LTCCs promote protein-synthesis dependent long-term memory (LTM). Norepinephrine (NE) release from the locus coeruleus (LC) is essential for early olfactory learning, thus noradrenergic modulation of LTCC function and its implication in olfactory learning is discussed here. We then address the differential roles of LTCCs in adult learning and learning in aged animals. PMID- 29321727 TI - Spatial Representation of Hippocampal Place Cells in a T-Maze with an Aversive Stimulation. AB - The hippocampus contains place cells representing spaces in an environment, and these place cells have been suggested to play a fundamental role in the formation of a cognitive map for spatial processing. However, how alterations in the firing patterns of place cells in response to aversive events encode the locations tied to these aversive events is unknown. Here, we analyzed spiking patterns of place cell ensembles in the dorsal hippocampal CA1 region of rats performing a T-maze alternation task with an aversive air-puff stimulation applied at a specific location on one side of a trajectory. The intensity of the air puff was adjusted so that the rats decreased their running speed before passing the aversive location. The addition of the aversive stimulus induced reorganization of place cell ensembles on both left and right trajectories with and without the aversive stimulus, respectively. Specifically, the animals showed a more abundant spatial representation in the vicinity of the aversive location. Removing the aversive stimulus induced new spatial firing patterns on both of the trajectories that differed from those both before and during application of the aversive stimulus. These results demonstrate that hippocampal spatial maps are flexibly reorganized to represent particular aversive events. PMID- 29321729 TI - The Superior Fronto-Occipital Fasciculus in the Human Brain Revealed by Diffusion Spectrum Imaging Tractography: An Anatomical Reality or a Methodological Artifact? AB - The existence of the superior fronto-occipital fasciculus (SFOF) in the human brain remains controversial. The aim of the present study was to clarify the existence, course, and terminations of the SFOF. High angular diffusion spectrum imaging (DSI) analysis was performed on six healthy adults and on a template of 842 subjects from the Human Connectome Project. To verify tractography results, we performed fiber microdissections of four post-mortem human brains. Based on DSI tractography, we reconstructed the SFOF in the subjects and the template from the Human Connectome Project that originated from the rostral and medial parts of the superior and middle frontal gyri. By tractography, we found that the fibers formed a compact fascicle at the level of the anterior horn of the lateral ventricle coursing above the head of caudate nucleus, medial to the corona radiate and under the corpus callosum (CC), and terminated at the parietal region via the lower part of the caudate nucleus. We consider that this fiber bundle observed by tractography is the SFOF, although it terminates mainly at the parietal region, rather than occipital lobe. By contrast, we were unable to identify a fiber bundle corresponding to the SFOF in our fiber dissection study. Although we did not provide definite evidence of the SFOF in the human brain, these findings may be useful for future studies in this field. PMID- 29321730 TI - Rhythmic Calcium Events in the Lamina Propria Network of the Urinary Bladder of Rat Pups. AB - The lamina propria contains a dense network of cells, including interstitial cells (ICs), that may play a role in bladder function by modulating communication between urothelium, nerve fibers and smooth muscle or acting as pacemakers. Transient receptor potential vanilloid 4 (TRPV4) channels allow cation influx and may be involved in sensing stretch or chemical irritation in urinary bladder. Urothelium was removed from rats (P0-Adult), cut into strips, and loaded with a Ca2+ fluorescent dye (Fluo-2 AM leak resistant or Cal 520) for 90 min (35-37 degrees C) to measure Ca2+ events. Ca2+ events were recorded for a period of 60 seconds (s) in control and after drug treatment. A heterogeneous network of cells was identified at the interface of the urothelium and lamina propria of postnatal rat pups, aged <= postnatal (P) day 21, with diverse morphology (round, fusiform, stellate with numerous projections) and expressing platelet-derived growth factor receptor alpha (PDGFRalpha)- and TRPV4-immunoreactivity (IR). Ca2+ transients occurred at a slow frequency with an average interval of 30 +/- 8.6 s. Waveform analyses of Ca2+ transients in cells in the lamina propria network revealed long duration Ca2+ events with slow upstrokes. We observed slow propagating waves of activity in the lamina propria network that displayed varying degrees of coupling. Application of the TRPV4 agonist, GSK1016790 (100 nM), increased the duration of Ca2+ events, the number of cells with Ca2+ events and the integrated Ca2+ activity corresponding to propagation of activity among cells in the lamina propria network. However, GSK2193874 (1 MUM), a potent antagonist of TRPV4 channels, was without effect. ATP (1 MUM) perfusion increased the number of cells in the lamina propria exhibiting Ca2+ events and produced tightly coupled network activity. These findings indicate that ATP and TRPV4 can activate cells in the laminar propria network, leading to the appearance of organized propagating wavefronts. PMID- 29321732 TI - Discrete Serotonin Systems Mediate Memory Enhancement and Escape Latencies after Unpredicted Aversive Experience in Drosophila Place Memory. AB - Feedback mechanisms in operant learning are critical for animals to increase reward or reduce punishment. However, not all conditions have a behavior that can readily resolve an event. Animals must then try out different behaviors to better their situation through outcome learning. This form of learning allows for novel solutions and with positive experience can lead to unexpected behavioral routines. Learned helplessness, as a type of outcome learning, manifests in part as increases in escape latency in the face of repeated unpredicted shocks. Little is known about the mechanisms of outcome learning. When fruit fly Drosophilamelanogaster are exposed to unpredicted high temperatures in a place learning paradigm, flies both increase escape latencies and have a higher memory when given control of a place/temperature contingency. Here we describe discrete serotonin neuronal circuits that mediate aversive reinforcement, escape latencies, and memory levels after place learning in the presence and absence of unexpected aversive events. The results show that two features of learned helplessness depend on the same modulatory system as aversive reinforcement. Moreover, changes in aversive reinforcement and escape latency depend on local neural circuit modulation, while memory enhancement requires larger modulation of multiple behavioral control circuits. PMID- 29321728 TI - Modulation of Hippocampal Circuits by Muscarinic and Nicotinic Receptors. AB - This article provides a review of the effects of activation of muscarinic and nicotinic receptors on the physiological properties of circuits in the hippocampal formation. Previous articles have described detailed computational hypotheses about the role of cholinergic neuromodulation in enhancing the dynamics for encoding in cortical structures and the role of reduced cholinergic modulation in allowing consolidation of previously encoded information. This article will focus on addressing the broad scope of different modulatory effects observed within hippocampal circuits, highlighting the heterogeneity of cholinergic modulation in terms of the physiological effects of activation of muscarinic and nicotinic receptors and the heterogeneity of effects on different subclasses of neurons. PMID- 29321733 TI - Stress Induces Contextual Blindness in Lotteries and Coordination Games. AB - In this paper, we study how stress affects risk taking in three tasks: individual lotteries, Stag Hunt (coordination) games, and Hawk-Dove (anti-coordination) games. Both control and stressed subjects take more risks in all three tasks when the value of the safe option is decreased and in lotteries when the expected gain is increased. Also, subjects take longer to take decisions when stakes are high, when the safe option is less attractive and in the conceptually more difficult Hawk-Dove game. Stress (weakly) increases reaction times in those cases. Finally, our main result is that the behavior of stressed subjects in lotteries, Stag Hunt and Hawk-Dove are all highly predictive of each other (p-value < 0.001 for all three pairwise correlations). Such strong relationship is not present in our control group. Our results illustrate a "contextual blindness" caused by stress. The mathematical and behavioral tensions of Stag Hunt and Hawk-Dove games are axiomatically different, and we should expect different behavior across these games, and also with respect to the individual task. A possible explanation for the highly significant connection across tasks in the stress condition is that stressed subjects habitually rely on one mechanism to make a decision in all contexts whereas unstressed subjects utilize a more cognitively flexible approach. PMID- 29321731 TI - Behavioral Modulation by Spontaneous Activity of Dopamine Neurons. AB - Dopamine modulates a variety of animal behaviors that range from sleep and learning to courtship and aggression. Besides its well-known phasic firing to natural reward, a substantial number of dopamine neurons (DANs) are known to exhibit ongoing intrinsic activity in the absence of an external stimulus. While accumulating evidence points at functional implications for these intrinsic "spontaneous activities" of DANs in cognitive processes, a causal link to behavior and its underlying mechanisms has yet to be elucidated. Recent physiological studies in the model organism Drosophila melanogaster have uncovered that DANs in the fly brain are also spontaneously active, and that this activity reflects the behavioral/internal states of the animal. Strikingly, genetic manipulation of basal DAN activity resulted in behavioral alterations in the fly, providing critical evidence that links spontaneous DAN activity to behavioral states. Furthermore, circuit-level analyses have started to reveal cellular and molecular mechanisms that mediate or regulate spontaneous DAN activity. Through reviewing recent findings in different animals with the major focus on flies, we will discuss potential roles of this physiological phenomenon in directing animal behaviors. PMID- 29321735 TI - ArControl: An Arduino-Based Comprehensive Behavioral Platform with Real-Time Performance. AB - Studying animal behavior in the lab requires reliable delivering stimulations and monitoring responses. We constructed a comprehensive behavioral platform (ArControl: Arduino Control Platform) that was an affordable, easy-to-use, high performance solution combined software and hardware components. The hardware component was consisted of an Arduino UNO board and a simple drive circuit. As for software, the ArControl provided a stand-alone and intuitive GUI (graphical user interface) application that did not require users to master scripts. The experiment data were automatically recorded with the built in DAQ (data acquisition) function. The ArControl also allowed the behavioral schedule to be entirely stored in and operated on the Arduino chip. This made the ArControl a genuine, real-time system with high temporal resolution (<1 ms). We tested the ArControl, based on strict performance measurements and two mice behavioral experiments. The results showed that the ArControl was an adaptive and reliable system suitable for behavioral research. PMID- 29321736 TI - Commentary: Musicians' Online Performance during Auditory and Visual Statistical Learning Tasks. PMID- 29321737 TI - Propofol and Sevoflurane Differentially Modulate Cortical Depolarization following Electric Stimulation of the Ventrobasal Thalamus. AB - The neuronal mechanisms how anesthetics lead to loss of consciousness are unclear. Thalamocortical interactions are crucially involved in conscious perception; hence the thalamocortical network might be a promising target for anesthetic modulation of neuronal information pertaining to arousal and waking behavior. General anesthetics affect the neurophysiology of the thalamus and the cortex but the exact mechanisms of how anesthetics interfere with processing thalamocortical information remain to be elucidated. Here we investigated the effect of the anesthetic agents sevoflurane and propofol on thalamocortical network activity in vitro. We used voltage-sensitive dye imaging techniques to analyze the cortical depolarization in response to stimulation of the thalamic ventrobasal nucleus in brain slices from mice. Exposure to sevoflurane globally decreased cortical depolarization in a dose-dependent manner. Sevoflurane reduced the intensity and extent of cortical depolarization and delayed thalamocortical signal propagation. In contrast, propofol neither affected area nor amplitude of cortical depolarization. However, propofol exposure resulted in regional changes in spatial distribution of maximum fluorescence intensity in deep regions of the cortex. In summary, our experiments revealed substance-specific effects on the thalamocortical network. Functional changes of the neuronal network are known to be pivotally involved in the anesthetic-induced loss of consciousness. Our findings provide further evidence that the mechanisms of anesthetic-mediated loss of consciousness are drug- and pathway-specific. PMID- 29321739 TI - Brain Aging: Uncovering Cortical Characteristics of Healthy Aging in Young Adults. AB - Despite extensive research in the field of aging neuroscience, it still remains unclear whether age related cortical changes can be detected in different functional networks of younger adults and whether these networks respond identically to healthy aging. We collected high-resolution brain anatomical data from 56 young healthy adults (mean age = 30.8 +/- 8.1 years, 29 males). We performed whole brain parcellation into seven functional networks, including visual, somatomotor, dorsal attention, ventral attention, limbic, frontoparietal and default mode networks. We estimated intracranial volume (ICV) and averaged cortical thickness (CT), cortical surface area (CSA) and cortical volume (CV) over each hemisphere as well as for each network. Averaged cortical measures over each hemisphere, especially CT and CV, were significantly lower in older individuals compared to younger ones (one-way ANOVA, p < 0.05, corrected for multiple comparisons). There were negative correlations between age and averaged CT and CV over each hemisphere (p < 0.05, corrected for multiple comparisons) as well as between age and ICV (p = 0.05). Network level analysis showed that age was negatively correlated with CT for all functional networks (p < 0.05, corrected for multiple comparisons), apart from the limbic network. While age was unrelated to CSA, it was negatively correlated with CV across several functional networks (p < 0.05, corrected for multiple comparisons). We also showed positive associations between CV and CT and between CV and CSA for all networks (p < 0.05, corrected for multiple comparisons). We interpret the lack of association between age and CT of the limbic network as evidence that the limbic system may be particularly resistant to age-related declines during this period of life, whereas the significant age-related declines in averaged CT over each hemisphere as well as in all other six networks suggests that CT may serve as a reliable biomarker to capture the effect of normal aging. Due to the simultaneous dependence of CV on CT and CSA, CV was unable to identify such effects of normal aging consistently for the other six networks, but there were negative associations observed between age and averaged CV over each hemisphere as well as between age and ICV. Our findings suggest that the identification of early cortical changes within various functional networks during normal aging might be useful for predicting the effect of aging on the efficiency of functional performance even during early adulthood. PMID- 29321734 TI - Immediate-Early Genes Modulation by Antipsychotics: Translational Implications for a Putative Gateway to Drug-Induced Long-Term Brain Changes. AB - An increasing amount of research aims at recognizing the molecular mechanisms involved in long-lasting brain architectural changes induced by antipsychotic treatments. Although both structural and functional modifications have been identified following acute antipsychotic administration in humans, currently there is scarce knowledge on the enduring consequences of these acute changes. New insights in immediate-early genes (IEGs) modulation following acute or chronic antipsychotic administration may help to fill the gap between primary molecular response and putative long-term changes. Moreover, a critical appraisal of the spatial and temporal patterns of IEGs expression may shed light on the functional "signature" of antipsychotics, such as the propensity to induce motor side effects, the potential neurobiological mechanisms underlying the differences between antipsychotics beyond D2 dopamine receptor affinity, as well as the relevant effects of brain region-specificity in their mechanisms of action. The interest for brain IEGs modulation after antipsychotic treatments has been revitalized by breakthrough findings such as the role of early genes in schizophrenia pathophysiology, the involvement of IEGs in epigenetic mechanisms relevant for cognition, and in neuronal mapping by means of IEGs expression profiling. Here we critically review the evidence on the differential modulation of IEGs by antipsychotics, highlighting the association between IEGs expression and neuroplasticity changes in brain regions impacted by antipsychotics, trying to elucidate the molecular mechanisms underpinning the effects of this class of drugs on psychotic, cognitive and behavioral symptoms. PMID- 29321738 TI - Cognitive-Motor Interference during Walking in Older Adults with Probable Mild Cognitive Impairment. AB - Although several studies have shown that dual-tasking (DT) mobility is impaired in Alzheimer's disease, studies on the effects of DT conditions in probable Mild Cognitive Impairment (pMCI) have not yielded unequivocal results. The objectives of the study were to (1) examine the effect of a concurrent task on a complex walking task in adults with cognitive impairment; and (2) determine whether the effect varied with different difficulty levels of the concurrent task. Furthermore, the study was designed to evaluate the Trail-Walking Test (TWT) as a potential detection tool for MCI. We examined DT performance in 42 young adults (mean age 23.9 +/- 1.98), and 43 older adults (mean age 68.2 +/- 6.42). The MoCA was used to stratify the subjects into those with and without pMCI. DT was assessed using the TWT: participants completed 5 trials each of walking along a fixed pathway, stepping on targets with increasing sequential numbers (i.e., 1-2 ...-15), and increasing sequential numbers and letters (i.e., 1-A-2-B-3-...-8). Motor and cognitive DT effects (DTE) were calculated for each task. ROC curves were used to distinguish younger and healthy older adults from older adults with pMCI. The TWT showed excellent test-retest reliability across all conditions and groups (ICC : 0.83-0.97). SEM% was also low (<11%) as was the MDC95% (<30%). Within the DT conditions, the pMCI group showed significantly longer durations for all tasks regardless of the cognitive load compared to the younger and the healthy older adults. The motor DTEs were greatest for the complex condition in older adults with pMCI more so than in comparison with younger and healthy older adults. ROC analyses confirmed that only the tasks with higher cognitive load could differentiate older adults with pMCI from controls (area under the curve >0.7, p < 0.05). The TWT is a reliable DT mobility measure in people with pMCI. However, the condition with high cognitive load is more sensitive than the condition with low cognitive load in identifying pMCI. The TWT-3 thus could serve as a screening tool for early detection of individuals with pMCI. Future studies need to determine the neural correlates for cognitive-motor interference in older adults with pMCI. PMID- 29321740 TI - A Non-imaging High Throughput Approach to Chemical Library Screening at the Unmodified Adenosine-A3 Receptor in Living Cells. AB - Recent advances in fluorescent ligand technology have enabled the study of G protein-coupled receptors in their native environment without the need for genetic modification such as addition of N-terminal fluorescent or bioluminescent tags. Here, we have used a non-imaging plate reader (PHERAstar FS) to monitor the binding of fluorescent ligands to the human adenosine-A3 receptor (A3AR; CA200645 and AV039), stably expressed in CHO-K1 cells. To verify that this method was suitable for the study of other GPCRs, assays at the human adenosine-A1 receptor, and beta1 and beta2 adrenoceptors (beta1AR and beta2AR; BODIPY-TMR-CGP-12177) were also carried out. Affinity values determined for the binding of the fluorescent ligands CA200645 and AV039 to A3AR for a range of classical adenosine receptor antagonists were consistent with A3AR pharmacology and correlated well (R2 = 0.94) with equivalent data obtained using a confocal imaging plate reader (ImageXpress Ultra). The binding of BODIPY-TMR-CGP-12177 to the beta1AR was potently inhibited by low concentrations of the beta1-selective antagonist CGP 20712A (pKi 9.68) but not by the beta2-selective antagonist ICI 118551(pKi 7.40). Furthermore, in experiments conducted in CHO K1 cells expressing the beta2AR this affinity order was reversed with ICI 118551 showing the highest affinity (pKi 8.73) and CGP20712A (pKi 5.68) the lowest affinity. To determine whether the faster data acquisition of the non-imaging plate reader (~3 min per 96-well plate) was suitable for high throughput screening (HTS), we screened the LOPAC library for inhibitors of the binding of CA200645 to the A3AR. From the initial 1,263 compounds evaluated, 67 hits (defined as those that inhibited the total binding of 25 nM CA200645 by >=40%) were identified. All compounds within the library that had medium to high affinity for the A3AR (pKi >=6) were successfully identified. We found three novel compounds in the library that displayed unexpected sub-micromolar affinity for the A3AR. These were K114 (pKi 6.43), retinoic acid p-hydroxyanilide (pKi 6.13) and SU 6556 (pKi 6.17). Molecular docking of these latter three LOPAC library members provided a plausible set of binding poses within the vicinity of the established orthosteric A3AR binding pocket. A plate reader based library screening using an untagged receptor is therefore possible using fluorescent ligand opening the possibility of its use in compound screening at natively expressed receptors. PMID- 29321741 TI - ATP Modifies the Proteome of Extracellular Vesicles Released by Microglia and Influences Their Action on Astrocytes. AB - Extracellular ATP is among molecules promoting microglia activation and inducing the release of extracellular vesicles (EVs), which are potent mediators of intercellular communication between microglia and the microenvironment. We previously showed that EVs produced under ATP stimulation (ATP-EVs) propagate a robust inflammatory reaction among astrocytes and microglia in vitro and in mice with subclinical neuroinflammation (Verderio et al., 2012). However, the proteome of EVs released upon ATP stimulation has not yet been elucidated. In this study we applied a label free proteomic approach to characterize the proteome of EVs released constitutively and during microglia activation with ATP. We show that ATP drives sorting in EVs of a set of proteins implicated in cell adhesion/extracellular matrix organization, autophagy-lysosomal pathway and cellular metabolism, that may influence the response of recipient astrocytes to EVs. These data provide new clues to molecular mechanisms involved in microglia response to ATP and in microglia signaling to the environment via EVs. PMID- 29321743 TI - The Effects of Electronic Cigarette (ECIG)-Generated Aerosol and Conventional Cigarette Smoke on the Mucociliary Transport Velocity (MTV) Using the Bullfrog (R. catesbiana) Palate Paradigm. AB - Background: While ECIGs are under scrutiny concerning safety, particularly in reference to the physiological impact that aerosolized ECIG liquid (E-liquid) may have on respiratory tissues, others believe that ECIGs are a "Harm Reduction" alternative to conventional cigarettes. Previous studies investigating ciliated respiratory epithelium indicate that smoking shortens cilia length, reduces cilia beat frequency and disrupts respiratory epithelium, which most likely contributes to the inhibition of mucocilliary clearance. Monitoring mucous clearance of respiratory tissues exposed to ECIG-generated aerosol or conventional cigarette smoke, as indexed by mucous transport velocity (MTV), is one way to gauge the impact aerosol and smoke have on the respiratory tract. Therefore, we designed an experiment to test the effect of ECIG-generated aerosol and smoke on MTV using the frog palate paradigm. Methods: Peristaltic pumps transport ECIG-generated aerosol and conventional cigarette smoke into custom-made chambers containing excised bullfrog palates. MTVs were determined before exposure, immediately after exposure and approximately 1 day following exposure. MTVs were also determined (at the same time points) for palates exposed to air (control). Surface and cross sectional SEM images of palates from all three groups were obtained to support MTV data. Results: The results indicate that ECIG-generated aerosol has a modest inhibitory effect (p < 0.05) on MTV 1 day post-exposure (0.09 +/- 0.01) compared to control MTV (0.16 +/- 0.03 mm/s). In contrast, smoke completely inhibits MTV from 0.14 +/- 0.03 mm/s immediately before exposure to 0.00 mm/sec immediately after exposure and the MTV is unable to recover 1 day later. SEM images of control palates and palates exposed to ECIG-generated aerosol both show cilia throughout their epithelial surface, while some areas of palates exposed to smoke are completely devoid of cilia. Additionally, the epithelial thickness of aerosol exposed palates appears thicker than control palates while smoke-exposed palates appear to be thinner due to epithelial disruption. Conclusions: These results indicate that ECIG-generated aerosol has only a modest effect on mucocilary clearance of bullfrog palates and aerosol sedimentation accounts for epithelial thickening. In accordance with the primary literature, conventional cigarette smoke dramatically inhibits mucociliary clearance and is, in part, due to decreased number of cilia and disruption of the smoke-exposed epithelium. PMID- 29321742 TI - Respiratory Frequency during Exercise: The Neglected Physiological Measure. AB - The use of wearable sensor technology for athlete training monitoring is growing exponentially, but some important measures and related wearable devices have received little attention so far. Respiratory frequency (fR), for example, is emerging as a valuable measurement for training monitoring. Despite the availability of unobtrusive wearable devices measuring fR with relatively good accuracy, fR is not commonly monitored during training. Yet fR is currently measured as a vital sign by multiparameter wearable devices in the military field, clinical settings, and occupational activities. When these devices have been used during exercise, fR was used for limited applications like the estimation of the ventilatory threshold. However, more information can be gained from fR. Unlike heart rate, [Formula: see text]O2, and blood lactate, fR is strongly associated with perceived exertion during a variety of exercise paradigms, and under several experimental interventions affecting performance like muscle fatigue, glycogen depletion, heat exposure and hypoxia. This suggests that fR is a strong marker of physical effort. Furthermore, unlike other physiological variables, fR responds rapidly to variations in workload during high-intensity interval training (HIIT), with potential important implications for many sporting activities. This Perspective article aims to (i) present scientific evidence supporting the relevance of fR for training monitoring; (ii) critically revise possible methodologies to measure fR and the accuracy of currently available respiratory wearables; (iii) provide preliminary indication on how to analyze fR data. This viewpoint is expected to advance the field of training monitoring and stimulate directions for future development of sports wearables. PMID- 29321745 TI - Commentary: Tensiomyographic Markers Are Not Sensitive for Monitoring Muscle Fatigue in Elite Youth Athletes: A Pilot Study. PMID- 29321744 TI - Nitrite-Mediated Hypoxic Vasodilation Predicted from Mathematical Modeling and Quantified from in Vivo Studies in Rat Mesentery. AB - Nitric oxide (NO) generated from nitrite through nitrite reductase activity in red blood cells has been proposed to play a major role in hypoxic vasodilation. However, we have previously predicted from mathematical modeling that much more NO can be derived from tissue nitrite reductase activity than from red blood cell nitrite reductase activity. Evidence in the literature suggests that tissue nitrite reductase activity is associated with xanthine oxidoreductase (XOR) and/or aldehyde oxidoreductase (AOR). We investigated the role of XOR and AOR in nitrite-mediated vasodilation from computer simulations and from in vivo exteriorized rat mesentery experiments. Vasodilation responses to nitrite in the superfusion medium bathing the mesentery equilibrated with 5% O2 (normoxia) or zero O2 (hypoxia) at either normal or acidic pH were quantified. Experiments were also conducted following intraperitoneal (IP) injection of nitrite before and after inhibiting XOR with allopurinol or inhibiting AOR with raloxifene. Computer simulations for NO and O2 transport using reaction parameters reported in the literature were also conducted to predict nitrite-dependent NO production from XOR and AOR activity as a function of nitrite concentration, PO2 and pH. Experimentally, the largest arteriolar responses were found with nitrite >10 mM in the superfusate, but no statistically significant differences were found with hypoxic and acidic conditions in the superfusate. Nitrite-mediated vasodilation with IP nitrite injections was reduced or abolished after inhibiting XOR with allopurinol (p < 0.001). Responses to IP nitrite before and after inhibiting AOR with raloxifene were not as consistent. Our mathematical model predicts that under certain conditions, XOR and AOR nitrite reductase activity in tissue can significantly elevate smooth muscle cell NO and can serve as a compensatory pathway when endothelial NO production is limited by hypoxic conditions. Our theoretical and experimental results provide further evidence for a role of tissue nitrite reductases to contribute additional NO to compensate for reduced NO production by endothelial nitric oxide synthase during hypoxia. Our mathematical model demonstrates that under extreme hypoxic conditions with acidic pH, endogenous nitrite levels alone can be sufficient for a functionally significant increase in NO bioavailability. However, these conditions are difficult to achieve experimentally. PMID- 29321747 TI - Lower Choline-Containing Metabolites/Creatine (Cr) Rise and Failure to Sustain NAA/Cr Levels in the Dorsolateral Prefrontal Cortex Are Associated with Depressive Episode Recurrence under Maintenance Therapy: A Proton Magnetic Resonance Spectroscopy Retrospective Cohort Study. AB - Background: The aim of this study was to evaluate the relationship between changes in proton magnetic resonance spectroscopy (1H-MRS) parameters at the start of the index episode recovery phase and at recurrence in patients with recurrent depression who were treated with prolonged maintenance therapy. Methods: 1H-MRS parameters were analyzed in 48 patients with recurrent depression who required maintenance therapy with antidepressant medication prescribed by a psychiatrist and who continued with the same antidepressant during the maintenance phase, either to recurrence of depression, completion of the 10-year observation period, or the start of the withdrawal phase (tapering-off antidepressant). N-acetylaspartate (NAA), choline-containing metabolites (Cho), creatine (Cr), and glutamine/glutamate were measured at the start of the recovery phase and 6 months later. Results: Recurrent depressive episodes occurred in 20 patients. These individuals had a smaller increase in Cho/Cr after the beginning of the recovery phase compared to the non-recurrent patient group and also exhibited a decreased NAA/Cr ratio. Conclusion: Sustainable NAA and increased Cho levels at the onset of the recovery phase of the index episode are early markers of antidepressant effectiveness associated with a lower risk of major depressive disorder recurrence. The NAA and Cho changes in the non-recurrent group may be attributable to increased brain resilience, contrary to the transient temporal effect observed in subjects who experienced a depressive episode. PMID- 29321746 TI - Identification of Novel Signal Transduction, Immune Function, and Oxidative Stress Genes and Pathways by Topiramate for Treatment of Methamphetamine Dependence Based on Secondary Outcomes. AB - Background: Topiramate (TPM) is suggested to be a promising medication for treatment of methamphetamine (METH) dependence, but the molecular basis remains to be elucidated. Methods: Among 140 METH-dependent participants randomly assigned to receive either TPM (N = 69) or placebo (N = 71) in a previously conducted randomized controlled trial, 50 TPM- and 49 placebo-treated participants had a total 212 RNA samples available at baseline, week 8, and week 12 time points. Following our primary analysis of gene expression data, we reanalyzed the microarray expression data based on a latent class analysis of binary secondary outcomes during weeks 1-12 that provided a classification of 21 responders and 31 non-responders with consistent responses at both time points. Results: Based on secondary outcomes, 1,381, 576, 905, and 711 differentially expressed genes at nominal P values < 0.05 were identified in responders versus non-responders for week 8 TPM, week 8 placebo, week 12 TPM, and week 12 placebo groups, respectively. Among 1,381 genes identified in week 8 TPM responders, 359 genes were identified in both week 8 and week 12 TPM groups, of which 300 genes were exclusively detected in TPM responders. Of them, 32 genes had nominal P values < 5 * 10-3 at either week 8 or week 12 and false discovery rates < 0.15 at both time points with consistent directions of gene expression changes, which include GABARAPL1, GPR155, and IL15RA in GABA receptor signaling that represent direct targets for TPM. Analyses of these 300 genes revealed 7 enriched pathways belonging to neuronal function/synaptic plasticity, signal transduction, inflammation/immune function, and oxidative stress response categories. No pathways were enriched for 72 genes exclusively detected in both week 8 and week 12 placebo groups. Conclusion: This secondary analysis study of gene expression data from a TPM clinical trial not only yielded consistent results with those of primary analysis but also identified additional new genes and pathways on TPM response to METH addiction. PMID- 29321748 TI - Silencing of Viral Elements: An Available Cure for Schizophrenia? PMID- 29321749 TI - Gender and Age Effects on the Trajectory of Depression in Opioid Users during Methadone Maintenance Treatment. AB - Introduction: Both heroin use and depression are significant health problems. Methadone maintenance treatment (MMT) can be of great benefit to heroin users. However, changes in the level of depression in heroin users during MMT are not clear. Gender and age are also important factors in the development of depression, and whether gender and age moderate changes in depression in heroin users during MMT warrants further study. This study aimed to explore: (1) the trajectory of depression in opioid users during MMT and (2) the moderating effects of gender and age on the trajectory of depression in opioid users receiving MMT. Method: A total of 294 intravenous heroin users were recruited into this 9-month observational study. The level of depression was measured at the intake interview and at follow-up interviews every 3 months. A latent growth model was used to analyze the trajectory of the level of depression among the participants. Results: Depression improved rapidly during the first 3 months of MMT and slowly after the first 3 months in both the female and male heroin users. There was no gender difference in the level of depression at each follow-up point. The level of depression in the female heroin users decreased faster than that in the male heroin users. In addition, the level of depression in the younger heroin users decreased faster than that in the older subjects. Conclusion: Depression in female and younger heroin users improved more rapidly than in male and older subjects, respectively. PMID- 29321750 TI - Psychometric Properties of the Cognitive Emotion Regulation Questionnaire (CERQ) in Patients with Fibromyalgia Syndrome. AB - Given that Fibromyalgia Syndrome (FMS) is associated with problems in emotion regulation, the importance of assessing this construct is widely acknowledged by clinical psychologists and pain specialists. Although the Cognitive Emotion Regulation Questionnaire (CERQ) is a self-report measure used worldwide, there are no data on its psychometric properties in patients with FMS. This study analyzed the dimensionality, reliability, and validity of the CERQ in a sample of 231 patients with FMS. Given that "fibrofog" is one of the most disabling FMS symptoms, in the present study, items in the CERQ were grouped by dimension. This change in item presentation was conceived as an efficient way of facilitating responses as a result of a clear understanding of what the items related to each dimension are attempting to measure. The following battery of measures was administered: the CERQ, the Revised Fibromyalgia Impact Questionnaire, the Pain Catastrophizing Scale, the Center for Epidemiologic Studies Depression Scale, and the State-Trait Anxiety Inventory. Four models of the CERQ structure were examined and confirmatory factor analyses supported the original factor model, consisting of nine factors-Self-blame, Acceptance, Rumination, Positive refocusing, Refocus on planning, Positive reappraisal, Putting into perspective, Catastrophizing, and Other-blame. There was minimal overlap between CERQ subscales and their internal consistency was adequate. Correlational and regression analyses supported the construct validity of the CERQ. Our findings indicate that the CERQ (items-grouped version) is a sound instrument for assessing cognitive emotion regulation in patients with FMS. PMID- 29321751 TI - Sensation Seeking, Non-contextual Decision Making, and Driving Abilities As Measured through a Moped Simulator. AB - The general aim of the present study was to explore the relations between driving style (assessed through a moped riding simulator) and psychological variables such as sensation seeking and decision making. Because the influences of sensation seeking and decision making on driving styles have been studied separately in the literature, we have tried to investigate their mutual relations so as to include them in a more integrated framework. Participants rode the Honda Riding Trainer (HRT) simulator, filled in the Sensation Seeking Scale V (SSS V), and performed the Iowa Gambling Task (IGT). A cluster analysis of the HRT riding indexes identified three groups: Prudent, Imprudent, and Insecure riders. First, the results showed that Insecure males seek thrills and adventure less than both Prudent males and Insecure females, whereas Prudent females are less disinhibited than both Prudent males and Insecure females. Moreover, concerning the relations among SSS, decision making as measured by the IGT, and riding performance, high thrill and adventure seekers performed worse in the simulator only if they were also bad decision makers, indicating that these two traits jointly contribute to the quality of riding performance. From an applied perspective, these results also provide useful information for the development of protocols for assessing driving abilities among novice road users. Indeed, the relation between risk proneness and riding style may allow for the identification of road-user populations who require specific training. PMID- 29321752 TI - Differential Classical Conditioning of the Nocebo Effect: Increasing Heat-Pain Perception without Verbal Suggestions. AB - Background: Nocebo effects, including nocebo hyperalgesia, are a common phenomenon in clinical routine with manifold negative consequences. Both explicit expectations and learning by conditioning are known to induce nocebo effects, but the specific role of conditioning remains unclear, because conditioning is rarely implemented independent of verbal suggestions. Further, although pain is a multidimensional phenomenon, nocebo effects are usually assessed in subjective ratings only, neglecting, e.g., behavioral aspects. The aim of this study was to test whether nocebo hyperalgesia can be learned by conditioning without explicit expectations, to assess nocebo effects in different response channels, and to exploratively assess, whether contingency awareness is a necessary condition for conditioned nocebo hyperalgesia. Methods: Twenty-one healthy volunteers were classically conditioned using painful and non-painful heat stimuli that followed two different cues. The conditioned nocebo effect was assessed by subjective ratings of perceived stimulation intensity on a visual analog scale and a behavioral discrimination task, assessing sensitization and habituation in response to the same stimulation following the two cues. Results: Results show a conditioned nocebo effect indicated by the subjective intensity ratings. Conditioned effects were also seen in the behavioral responses, but paradoxically, behavioral responses indicated decreased perception after conditioning, but only for subjects successfully conditioned as indicated by the subjective ratings. Explorative analyses suggested that awareness of the contingencies and the different cues was not necessary for successful conditioning. Conclusion: Nocebo effects can be learned without inducing additional explicit expectations. The dissociation between the two response channels, possibly representing the conditioned and a compensatory response, highlights the importance of considering different outcomes in nocebo responses to fully understand underlying mechanisms. The present results challenge the role of explicit expectations in conditioned nocebo effects and are relevant with implications in clinical contexts, e.g., when transient adverse effects become conditioned. PMID- 29321754 TI - The Interplay of Students' School Engagement, School Self-Concept and Motivational Relations during Adolescence. AB - Existing literature evidences the association between adolescents' school self concept and engagement, both concepts being related to students' perception of teachers and peers as motivators. However, few longitudinal studies explore the interplay of these factors. The present study aims to close this gap, applying latent cross-lagged panel design to two-wave data from German adolescent students [1088 8th grade students at T1 (Mage = 13.7, SD = 0.53; 53.9% girls) and 845 9th grade students at T2 (Mage = 14.86; SD = 0.57; 55% girls) from the initial sample]. Besides direct effects, three cross-lagged over-time paths were found to be significant: students' perception of peers as positive motivators (PPMs) at the beginning of 8th grade (T1) positively predicts their behavioral school engagement at the end of 9th grade (T2), as well as emotional school engagement at the beginning of 8th grade positively predicts students' perception of PPMs 1.5 years later. Furthermore, behavioral school engagement at T1 functions as a predictor of a student's school self-concept at T2. PMID- 29321753 TI - Pragmatic Ability Deficit in Schizophrenia and Associated Theory of Mind and Executive Function. AB - Deficits in pragmatic abilities have frequently been observed in patients with schizophrenia. The objective of the study was to investigate the relationship between pragmatic deficits, ToM deficits and executive dysfunctions in schizophrenia. A group of 42 schizophrenic patients and 42 healthy controls were assessed on irony task (one type of pragmatic language), two subcomponents of ToM (cognitive and affective), and three subcomponents of EF (inhibition, updating, and switching). The clinical symptoms in schizophrenia were assessed using the positive and negative symptoms of schizophrenia. The schizophrenia group exhibited significant impairments in all above tasks compared to the control group. Correlation results found that irony scores were correlated with the two subcomponents of ToM and two of the three subcomponents of EF (inhibition and updating). The regression analysis revealed that the cognitive ToM and inhibition predicted 9.2% and 29.9% of the variance of irony comprehension in the patient group, and inhibition was the best predictor for performance on irony task. Irony understanding was related to positive symptoms, but not to negative symptoms. The results suggest that the ability to interpret pragmatic language depends on schizophrenic patients' ability to infer mental states and the ability of inhibition. It provides empirical evidence for a particular target of inhibition for rehabilitation and intervention programs developed for schizophrenic patients. PMID- 29321755 TI - Do Children with Better Inhibitory Control Donate More? Differentiating between Early and Middle Childhood and Cool and Hot Inhibitory Control. AB - Inhibitory control may play an important part in prosocial behavior, such as donating behavior. However, it is not clear at what developmental stage inhibitory control becomes associated with donating behavior and which aspects of inhibitory control are related to donating behavior during development in early to middle childhood. The present study aimed to clarify these issues with two experiments. In Experiment 1, 103 3- to 5-year-old preschoolers completed cool (Stroop-like) and hot (delay of gratification) inhibitory control tasks and a donating task. The results indicated that there were no relationships between cool or hot inhibitory control and donating behavior in the whole group and each age group of the preschoolers. In Experiment 2, 140 elementary school children in Grades 2, 4, and 6 completed cool (Stroop-like) and hot (delay of gratification) inhibitory control tasks and a donating task. The results showed that inhibitory control was positively associated with donating behavior in the whole group. Cool and hot inhibitory control respectively predicted donating behavior in the second and sixth graders. Therefore, the present study reveals that donating behavior increasingly relies on specific inhibitory control, i.e., hot inhibitory control as children grow in middle childhood. PMID- 29321756 TI - A Neurodynamic Perspective on Musical Enjoyment: The Role of Emotional Granularity. PMID- 29321757 TI - Clinical and Phenomenological Characteristics of Patients with Task-Specific Lingual Dystonia: Possible Association with Occupation. AB - Background: Lingual dystonia is a subtype of oromandibular dystonia, which is a movement disorder characterized by involuntary sustained or intermittent contraction of the masticatory and/or tongue muscles. Lingual dystonia interferes with important daily activities, such as speaking, chewing, and swallowing, resulting in vocational and social disability. Objective: The aim of this study was to investigate a possible relationship between occupation and the development of lingual dystonia. Methods: Phenomenological and clinical characteristics of 95 patients [53 females (55.8%) and 42 males (44.2%), mean age 48.0 years] with task specific, speech-induced lingual dystonia were analyzed. Structured interviews were carried out to obtain information regarding primary occupation, including overtime work and stress during work. The factors that might have influenced the development of lingual dystonia were estimated using multivariate logistic regression analysis of the 95 patients with lingual dystonia and 95 controls [68 females (71.6%) and 27 males (28.4%), mean age 47.2 years] with temporomandibular disorders. Results: Overall, 84.2% of the patients had regular occupations; 73.8% of the patients with regular occupations reported working overtime more than twice a week, and 63.8% of them experienced stress at the workplace. Furthermore, 82.1% of the patients had engaged in occupations that required them to talk to customers or other people under stressful situations over prolonged periods of time for many years (mean: 15.6 years). The most common occupation was sales representative (17.9%), followed by telephone operator (13.7%), customer service representative (10.5%), health care worker (9.5%), waiter or waitress (5.3%), receptionist (5.3%), and cashier (5.3%). Twenty-nine patients (30.5%) had tardive lingual dystonia. Logistic regression analyses revealed that frequent requirements for professional speaking (p = 0.011, odds ratio: 5.66), high stress during work (p = 0.043, odds ratio: 5.4), and neuroleptic use (p = 0.032, odds ratio: 2.52) were significant contributors to the manifestation of lingual dystonia. Conclusion: Professions in which conversations in stressful situations are unavoidable may trigger lingual dystonia. Therefore, speech-induced lingual dystonia can be regarded as occupational dystonia in certain cases. PMID- 29321758 TI - Factors Affecting Volume Changes of the Somatosensory Cortex in Patients with Spinal Cord Injury: To Be Considered for Future Neuroprosthetic Design. AB - Spinal cord injury (SCI) leads to severe chronic disability, but also to secondary adaptive changes upstream to the injury in the brain which are most likely induced due to the lack of afferent information. These neuroplastic changes are a potential target for innovative therapies such as neuroprostheses, e.g., by stimulation in order to evoke sensation or in order to suppress phantom limb pain. Diverging results on gray matter atrophy have been reported in patients with SCI. Detectability of atrophy seems to depend on the selection of the regions of interest, while whole-brain approaches are not sensitive enough. In this study, we discussed previous research approaches and analyzed differential atrophic changes in incomplete SCI using manual segmentation of the somatosensory cortex. Patients with incomplete SCI (ASIA C-D), with cervical (N = 5) and thoracic (N = 6) injury were included. Time since injury was <=12 months in 7 patients, and 144, 152, 216, and 312 months in the other patients. Age at the injury was <=26 years in 4 patients and >=50 years in 7 patients. A sample of 12 healthy controls was included in the study. In contrast to all previous studies that used voxel-based morphometry, we performed manual segmentation of the somatosensory cortex in the postcentral gyrus from structural magnetic resonance images and normalized the calculated volumes against the sum of volumes of an automated whole-head segmentation. Volumes were smaller in patients than in controls (p = 0.011), and as a tendency, female patients had smaller volumes than male patients (p = 0.017, uncorrected). No effects of duration (subacute vs. chronic), level of lesion (cervical vs. thoracic), region (left vs. right S1), and age at onset (<=26 vs. >=50 years) was found. Our results demonstrate volume loss of S1 in incomplete SCI and encourage further research with larger sample sizes on volumetric changes in the acute and chronic stage of SCI, in order to document the moderating effect of type and location of injury on neuroplastic changes. A better understanding of neuroplastic changes in the sensorimotor cortex after SCI and its interaction with sex is needed in order to develop efficient rehabilitative interventions and neuroprosthetic technologies. PMID- 29321759 TI - Deficits in the Proline-Rich Synapse-Associated Shank3 Protein in Multiple Neuropsychiatric Disorders. AB - Signaling between neurons in the human central nervous system (CNS) is accomplished through a highly interconnected network of presynaptic and postsynaptic elements essential in the conveyance of electrical and neurochemical information. One recently characterized core postsynaptic element essential to the efficient operation of this complex network is a relatively abundant ~184.7 kDa proline-rich synapse-associated cytoskeletal protein known as Shank3 (SH3 ankyrin repeat domain; encoded at human chr 22q13.33). In this "Perspectives" article, we review and comment on current advances in Shank3 research and include some original data that show common Shank3 deficits in a number of seemingly unrelated human neurological disorders that include sporadic Alzheimer's disease (AD), autism spectrum disorder (ASD), bipolar disorder (BD), Phelan-McDermid syndrome (PMS; 22q13.3 deletion syndrome), and schizophrenia (SZ). Shank3 was also found to be downregulated in the CNS of the transgenic AD (TgAD) 5x familial Alzheimer's disease murine model engineered to overexpress the 42 amino acid amyloid-beta (Abeta42) peptide. Interestingly, the application of known pro inflammatory stressors, such as the Abeta42 peptide and the metal-neurotoxin aluminum sulfate, to human neuronal-glial cells in primary culture resulted in a significant decrease in the expression of Shank3. These data indicate that deficits in Shank3-expression may be one common denominator linking a wide-range of human neurological disorders that exhibit a progressive or developmental synaptic disorganization that is temporally associated with cognitive decline. PMID- 29321762 TI - Aflatoxin-Contaminated Nut Separation by Applied Machinery and Processing Stages in Fresh Pistachio Processing Plant. AB - In pistachio nuts, aflatoxin is mainly concentrated in the green hull-cracked nuts in the orchard even prior to harvest. However, during the hull-removal process, the hulls of all nuts including the cracked, identifiable nuts are removed causing an important characterization criterion of the contaminated nuts, to be lost. This, in turn, makes it harder to detect the contaminated nuts. However, during the processing stage, there is a good possibility of sorting the contaminated nuts based on their other inherent features, such as specific gravity and stain on the hard shell. In this study, we aimed to explore the effect of applied processing machinery and related sequences in the aflatoxin flow during post-harvest processing and the possible ways of reducing aflatoxin contamination in the Iranian pistachio industry. We planned a systematic sampling from the main and reject streams in two major prevailing processing methods, namely, wet and dry. In the dry processing method, the reject streams such as the adhering-hull rejects, air floaters, and manual hand pick-outs from the final inspection were found to be significantly more contaminated than the main stream. However, in the wet processing method, the input stream was considered highly contaminated. Among the sorting stages, only the adhering-hull rejects of the sinkers were considered more contaminated than the main stream. A contamination removal index was developed and applied to compare the effectiveness of the processing procedures. The water flotation tank was deemed responsible for 52.5% of aflatoxin contamination removal compared to 2.1% in the air flotation system. More effective sorting was achieved by the adhering-hull remover, which was preceded by a rubber-drum huller instead of the metal-drum type. Thus, by combining the most effective techniques of aflatoxin removal, an improved and more efficient method may be designed for pistachio processing plants. PMID- 29321760 TI - Optical Coherence Tomography in Patients with Chronic Migraine: Literature Review and Update. AB - Migraine is a chronic disease characterized by unilateral, pulsating, and often moderate-to-severe recurrent episodes of headache with nausea and vomiting. It affects approximately 15% of the general population, yet the underlying pathophysiological mechanisms are not fully understood. Optical coherence tomography (OCT) is a safe and reproducible diagnostic technique that utilizes infrared wavelengths and has a sensitivity of 8-10 MUm. It can be used to measure thinning of the retinal nerve fiber layer (RNFL) in some neurological disorders. Although ophthalmologists are often the first specialists to examine patients with migraine, few studies have addressed the involvement of the optic nerve and retino-choroidal structures in this group. We reviewed the literature on the etiological and pathological mechanisms of migraine and the relationship between recurrent constriction of cerebral and retrobulbar vessels and ischemic damage to the optic nerve, retina, and choroid. We also assessed the role of OCT for measuring peripapillary RNFL thickness and macular and choroidal changes in migraine patients. There is considerable evidence of cerebral and retrobulbar vascular involvement in the etiology of migraine. Transitory and recurrent constriction of the retinal and ciliary arteries may cause ischemic damage to the optic nerve, retina, and choroid in patients with migraine. OCT to assess the thickness of the peripapillary RNFL, macula, and choroid might increase our understanding of the pathophysiology of migraine and facilitate diagnosis of retino-choroidal compromise and follow-up of therapy in migraine patients. Future studies should determine the usefulness of OCT findings as a biomarker of migraine. PMID- 29321761 TI - From Bench to Bedside: Translating the Prolactin/Vasoinhibin Axis. AB - The prolactin/vasoinhibin axis defines an endocrine system, in which prolactin (PRL) and vasoinhibins regulate blood vessel growth and function, the secretion of other hormones, inflammatory and immune processes, coagulation, and behavior. The core element of the PRL/vasoinhibin axis is the generation of vasoinhibins, which consists in the proteolytic cleavage of their precursor molecule PRL. Vasoinhibins can interact with multiple different partners to mediate their effects in various tissues and anatomical compartments, indicating their pleiotropic nature. Based on accumulating knowledge about the PRL/vasoinhibin axis, two clinical trials were initiated, in which vasoinhibin levels are the target of therapeutic interventions. One trial investigates the effect of levosulpiride, a selective dopamine D2-receptor antagonist, on retinal alterations in patients with diabetic macular edema and retinopathy. The rationale of this trial is that the levosulpiride-induced hyperprolactinemia resulting in increased retinal vasoinhibins could lead to beneficiary outcomes in terms of a vasoinhibin-mediated antagonization of diabetes-induced retinal alterations. Another trial investigated the effect of bromocriptine, a dopamine D2-receptor agonist, for the treatment of peripartum cardiomyopathy. The rationale of treatment with bromocriptine is the inhibition of vasoinhibin generation by substrate depletion to prevent detrimental effects on the myocardial microvascularization. The trial demonstrated that bromocriptine treatment was associated with a high rate of left ventricular recovery and low morbidity and mortality. Therapeutic interventions into the PRL/vasoinhibin axis bear the risk of side effects in the areas of blood coagulation, blood pressure, and alterations of the mental state. PMID- 29321763 TI - Plant Phylogeny and Life History Shape Rhizosphere Bacterial Microbiome of Summer Annuals in an Agricultural Field. AB - Rhizosphere microbial communities are critically important for soil nitrogen cycling and plant productivity. There is evidence that plant species and genotypes select distinct rhizosphere communities, however, knowledge of the drivers and extent of this variation remains limited. We grew 11 annual species and 11 maize (Zea mays subsp. mays) inbred lines in a common garden experiment to assess the influence of host phylogeny, growth, and nitrogen metabolism on rhizosphere communities. Growth characteristics, bacterial community composition and potential activity of extracellular enzymes were assayed at time of flowering, when plant nitrogen demand is maximal. Bacterial community composition varied significantly between different plant species and genotypes. Rhizosphere beta-diversity was positively correlated with phylogenetic distance between plant species, but not genetic distance within a plant species. In particular, life history traits associated with plant resource acquisition (e.g., longer lifespan, high nitrogen use efficiency, and larger seed size) were correlated with variation in bacterial community composition and enzyme activity. These results indicate that plant evolutionary history and life history strategy influence rhizosphere bacterial community composition and activity. Thus, incorporating phylogenetic or functional diversity into crop rotations may be a tool to manipulate plant-microbe interactions in agricultural systems. PMID- 29321764 TI - Fecal Microbiota Transplantation, Commensal Escherichia coli and Lactobacillus johnsonii Strains Differentially Restore Intestinal and Systemic Adaptive Immune Cell Populations Following Broad-spectrum Antibiotic Treatment. AB - The essential role of the intestinal microbiota in the well-functioning of host immunity necessitates the investigation of species-specific impacts on this interplay. Aim of this study was to examine the ability of defined Gram-positive and Gram-negative intestinal commensal bacterial species, namely Escherichia coli and Lactobacillus johnsonii, respectively, to restore immune functions in mice that were immunosuppressed by antibiotics-induced microbiota depletion. Conventional mice were subjected to broad-spectrum antibiotic treatment for 8 weeks and perorally reassociated with E. coli, L. johnsonii or with a complex murine microbiota by fecal microbiota transplantation (FMT). Analyses at days (d) 7 and 28 revealed that immune cell populations in the small and large intestines, mesenteric lymph nodes and spleens of mice were decreased after antibiotic treatment but were completely or at least partially restored upon FMT or by recolonization with the respective bacterial species. Remarkably, L. johnsonii recolonization resulted in the highest CD4+ and CD8+ cell numbers in the small intestine and spleen, whereas neither of the commensal species could stably restore those cell populations in the colon until d28. Meanwhile less efficient than FMT, both species increased the frequencies of regulatory T cells and activated dendritic cells and completely restored intestinal memory/effector T cell populations at d28. Furthermore, recolonization with either single species maintained pro- and anti-inflammatory immune functions in parallel. However, FMT could most effectively recover the decreased frequencies of cytokine producing CD4+ lymphocytes in mucosal and systemic compartments. E. coli recolonization increased the production of cytokines such as TNF, IFN-gamma, IL-17, and IL-22, particularly in the small intestine. Conversely, only L. johnsonii recolonization maintained colonic IL-10 production. In summary, FMT appears to be most efficient in the restoration of antibiotics-induced collateral damages to the immune system. However, defined intestinal commensals such as E. coli and L. johnsonii have the potential to restore individual functions of intestinal and systemic immunity. In conclusion, our data provide novel insights into the distinct role of individual commensal bacteria in maintaining immune functions during/following dysbiosis induced by antibiotic therapy thereby shaping host immunity and might thus open novel therapeutical avenues in conditions of perturbed microbiota composition. PMID- 29321765 TI - Microbiological and Geochemical Survey of CO2-Dominated Mofette and Mineral Waters of the Cheb Basin, Czech Republic. AB - The Cheb Basin (NW Bohemia, Czech Republic) is a shallow, neogene intracontinental basin. It is a non-volcanic region which features frequent earthquake swarms and large-scale diffuse degassing of mantle-derived CO2 at the surface that occurs in the form of CO2-rich mineral springs and wet and dry mofettes. So far, the influence of CO2 degassing onto the microbial communities has been studied for soil environments, but not for aquatic systems. We hypothesized, that deep-trenching CO2 conduits interconnect the subsurface with the surface. This admixture of deep thermal fluids should be reflected in geochemical parameters and in the microbial community compositions. In the present study four mineral water springs and two wet mofettes were investigated through an interdisciplinary survey. The waters were acidic and differed in terms of organic carbon and anion/cation concentrations. Element geochemical and isotope analyses of fluid components were used to verify the origin of the fluids. Prokaryotic communities were characterized through quantitative PCR and Illumina 16S rRNA gene sequencing. Putative chemolithotrophic, anaerobic and microaerophilic organisms connected to sulfur (e.g., Sulfuricurvum, Sulfurimonas) and iron (e.g., Gallionella, Sideroxydans) cycling shaped the core community. Additionally, CO2-influenced waters form an ecosystem containing many taxa that are usually found in marine or terrestrial subsurface ecosystems. Multivariate statistics highlighted the influence of environmental parameters such as pH, Fe2+ concentration and conductivity on species distribution. The hydrochemical and microbiological survey introduces a new perspective on mofettes. Our results support that mofettes are either analogs or rather windows into the deep biosphere and furthermore enable access to deeply buried paleo-sediments. PMID- 29321766 TI - Untargeted Metabolomics Approach in Halophiles: Understanding the Biodeterioration Process of Building Materials. AB - The aim of the study was to explore the halophile metabolome in building materials using untargeted metabolomics which allows for broad metabolome coverage. For this reason, we used high-performance liquid chromatography interfaced to high-resolution mass spectrometry (HPLC/HRMS). As an alternative to standard microscopy techniques, we introduced pioneering Coherent Anti-stokes Raman Scattering Microscopy (CARS) to non-invasively visualize microbial cells. Brick samples saturated with salt solution (KCl, NaCl (two salinity levels), MgSO4, Mg(NO3)2), were inoculated with the mixture of preselected halophilic microorganisms, i.e., bacteria: Halobacillus styriensis, Halobacillus naozhouensis, Halobacillus hunanensis, Staphylococcus succinus, Marinococcus halophilus, Virgibacillus halodenitryficans, and yeast: Sterigmatomyces halophilus and stored at 28 degrees C and 80% relative humidity for a year. Metabolites were extracted directly from the brick samples and measured via HPLC/HRMS in both positive and negative ion modes. Overall, untargeted metabolomics allowed for discovering the interactions of halophilic microorganisms with buildings materials which together with CARS microscopy enabled us to elucidate the biodeterioration process caused by halophiles. We observed that halophile metabolome was differently affected by different salt solutions. Furthermore, we found indications for haloadaptive strategies and degradation of brick samples due to microbial pigment production as a salt stress response. Finally, we detected changes in lipid content related to changes in the structure of phospholipid bilayers and membrane fluidity. PMID- 29321767 TI - Diversity of Microbial Communities and Quantitative Chemodiversity in Layers of Marine Sediment Cores from a Causeway (Kaichu-Doro) in Okinawa Island, Japan. AB - Microbial community diversity and chemodiversity were investigated in marine sediments adjacent to the Okinawan "Kaichu-Doro" Causeway, which was constructed 46 years ago to connect a group of four islands (Henza-jima, Miyagi-jima, Ikei jima, Hamahiga-jima) to the Okinawan main island. This causeway was not built on pilings, but by land reclamation; hence, it now acts as a long, thin peninsula. The construction of this causeway was previously shown to have influenced the surrounding marine ecosystem, causing ecosystem fragmentation and loss of water circulation. In this study, we collected sediment cores (n = 10) from five paired sites in 1 m water depths. Each pair of sites consisted of one site each on the immediate north and south sides of the causeway. Originally the members of each pair were much closer to each other (<150 m) than to other pairs, but now the members of each pair are isolated by the causeway. Each core was 60-80 cm long and was divided into 15-cm layers. We examined the vertical diversity of microbial communities and chemical compounds to determine the correlation between chemodiversity and microbial communities among marine sediment cores and layers. Principal coordinate analyses (PCoA) of detected compounds and of bacterial and archaeal operational taxonomic units (OTUs) revealed that the north and south sides of the causeway are relatively isolated, with each side having unique microbial OTUs. Additionally, some bacterial families (e.g., Acidaminobacteraceae, Rhizobiaceae, and Xanthomonadaceae) were found only on the south side of Kaichu-Doro. Interestingly, we found that the relative abundance of OTUs for some microbial families increased from top to bottom, but this was reversed in some other families. We conclude that the causeway has altered microbial community composition and metabolite profiles in marine sediments. PMID- 29321768 TI - Repurposing and Revival of the Drugs: A New Approach to Combat the Drug Resistant Tuberculosis. AB - Emergence of drug resistant tuberculosis like multi drug resistant tuberculosis (MDR-TB), extensively drug-resistant tuberculosis (XDR-TB) and totally drug resistant tuberculosis (TDR-TB) has created a new challenge to fight against these bad bugs of Mycobacterium tuberculosis. Repurposing and revival of the drugs are the new trends/options to combat these worsen situations of tuberculosis in the antibiotics resistance era or in the situation of global emergency. Bactericidal and synergistic effect of repurposed/revived drugs along with the latest drugs bedaquiline and delamanid used in the treatment of MDR-TB, XDR-TB, and TDR-TB might be the choice for future promising combinatorial chemotherapy against these bad bugs. PMID- 29321769 TI - Analysis of Piscirickettsia salmonis Metabolism Using Genome-Scale Reconstruction, Modeling, and Testing. AB - Piscirickettsia salmonis is an intracellular bacterial fish pathogen that causes piscirickettsiosis, a disease with highly adverse impact in the Chilean salmon farming industry. The development of effective treatment and control methods for piscireckttsiosis is still a challenge. To meet it the number of studies on P. salmonis has grown in the last couple of years but many aspects of the pathogen's biology are still poorly understood. Studies on its metabolism are scarce and only recently a metabolic model for reference strain LF-89 was developed. We present a new genome-scale model for P. salmonis LF-89 with more than twice as many genes as in the previous model and incorporating specific elements of the fish pathogen metabolism. Comparative analysis with models of different bacterial pathogens revealed a lower flexibility in P. salmonis metabolic network. Through constraint-based analysis, we determined essential metabolites required for its growth and showed that it can benefit from different carbon sources tested experimentally in new defined media. We also built an additional model for strain A1-15972, and together with an analysis of P. salmonis pangenome, we identified metabolic features that differentiate two main species clades. Both models constitute a knowledge-base for P. salmonis metabolism and can be used to guide the efficient culture of the pathogen and the identification of specific drug targets. PMID- 29321770 TI - The Atypical Guanylate Kinase MoGuk2 Plays Important Roles in Asexual/Sexual Development, Conidial Septation, and Pathogenicity in the Rice Blast Fungus. AB - Guanylate kinases (GKs), which convert guanosine monophosphate into guanosine diphosphate (GDP), are important for growth and mannose outer chain elongation of cell wall N-linked glycoproteins in yeast. Here, we identified the ortholog of Saccharomyces cerevisiae GK Guk1, named MoGuk1 and a novel family of fungal GKs MoGuk2 in the rice blast fungus Magnaporthe oryzae. MoGuk1 contains 242 aa with an C-terminal GuKc domain that very similar to yeast Guk1. MoGuk2 contains 810 amino acids with a C-terminal GuKc domain and an additional N-terminal efThoc1 domain. Expression of either MoGuk1 or MoGuk2 in heterozygote yeast guk1 mutant could increase its GDP level. To investigate the biological role of MoGuk1 and MoGuk2 in M. oryzae, the gene replacement vectors were constructed. We obtained the DeltaMoguk2 but not DeltaMoguk1 mutant by screening over 1,000 transformants, indicating MoGuk1 might be essential for M. oryzae. The DeltaMoguk2 mutant showed weak reductions in vegetative growth, conidial germination, appressorial formation, and appressorial turgor, and showed significant reductions in sporulation and pathogenicity. Moreover, the DeltaMoguk2 mutant failed to produce perithecia and was sensitive to neomycin and a mixture of neomycin-tunicamycin. Exogenous GDP and ATP partially rescued the defects in conidial germination, appressorial formation, and infectious growth of the mutant. Further analysis revealed that intracellular GDP and GTP level was decreased, and GMP level was increased in the mutant, suggesting that MoGuk2 exhibits enzymatic activity. Structural analysis proved that the efThoc1, GuKc, and P-loop domains are essential for the full function of MoGuk2. Taken together, our data suggest that the guanylate kinase MoGuk2 is involved in the de novo GTP biosynthesis pathway and is important for infection-related morphogenesis in the rice blast fungus. PMID- 29321771 TI - Dual Regulation of Bacillus subtilis kinB Gene Encoding a Sporulation Trigger by SinR through Transcription Repression and Positive Stringent Transcription Control. AB - It is known that transcription of kinB encoding a trigger for Bacillus subtilis sporulation is under repression by SinR, a master repressor of biofilm formation, and under positive stringent transcription control depending on the adenine species at the transcription initiation nucleotide (nt). Deletion and base substitution analyses of the kinB promoter (P kinB ) region using lacZ fusions indicated that either a 5-nt deletion (Delta5, nt -61/-57, +1 is the transcription initiation nt) or the substitution of G at nt -45 with A (G-45A) relieved kinB repression. Thus, we found a pair of SinR-binding consensus sequences (GTTCTYT; Y is T or C) in an inverted orientation (SinR-1) between nt 57/-42, which is most likely a SinR-binding site for kinB repression. This relief from SinR repression likely requires SinI, an antagonist of SinR. Surprisingly, we found that SinR is essential for positive stringent transcription control of P kinB . Electrophoretic mobility shift assay (EMSA) analysis indicated that SinR bound not only to SinR-1 but also to SinR-2 (nt -29/-8) consisting of another pair of SinR consensus sequences in a tandem repeat arrangement; the two sequences partially overlap the '-35' and '-10' regions of P kinB . Introduction of base substitutions (T-27C C-26T) in the upstream consensus sequence of SinR-2 affected positive stringent transcription control of P kinB , suggesting that SinR binding to SinR-2 likely causes this positive control. EMSA also implied that RNA polymerase and SinR are possibly bound together to SinR-2 to form a transcription initiation complex for kinB transcription. Thus, it was suggested in this work that derepression of kinB from SinR repression by SinI induced by Spo0A~P and occurrence of SinR-dependent positive stringent transcription control of kinB might induce effective sporulation cooperatively, implying an intimate interplay by stringent response, sporulation, and biofilm formation. PMID- 29321772 TI - Simulation of Escherichia coli Dynamics in Biofilms and Submerged Colonies with an Individual-Based Model Including Metabolic Network Information. AB - Clustered microbial communities are omnipresent in the food industry, e.g., as colonies of microbial pathogens in/on food media or as biofilms on food processing surfaces. These clustered communities are often characterized by metabolic differentiation among their constituting cells as a result of heterogeneous environmental conditions in the cellular surroundings. This paper focuses on the role of metabolic differentiation due to oxygen gradients in the development of Escherichia coli cell communities, whereby low local oxygen concentrations lead to cellular secretion of weak acid products. For this reason, a metabolic model has been developed for the facultative anaerobe E. coli covering the range of aerobic, microaerobic, and anaerobic environmental conditions. This metabolic model is expressed as a multiparametric programming problem, in which the influence of low extracellular pH values and the presence of undissociated acid cell products in the environment has been taken into account. Furthermore, the developed metabolic model is incorporated in MICRODIMS, an in-house developed individual-based modeling framework to simulate microbial colony and biofilm dynamics. Two case studies have been elaborated using the MICRODIMS simulator: (i) biofilm growth on a substratum surface and (ii) submerged colony growth in a semi-solid mixed food product. In the first case study, the acidification of the biofilm environment and the emergence of typical biofilm morphologies have been observed, such as the mushroom-shaped structure of mature biofilms and the formation of cellular chains at the exterior surface of the biofilm. The simulations show that these morphological phenomena are respectively dependent on the initial affinity of pioneer cells for the substratum surface and the cell detachment process at the outer surface of the biofilm. In the second case study, a no-growth zone emerges in the colony center due to a local decline of the environmental pH. As a result, cellular growth in the submerged colony is limited to the colony periphery, implying a linear increase of the colony radius over time. MICRODIMS has been successfully used to reproduce complex dynamics of clustered microbial communities. PMID- 29321773 TI - The Potential of Donor T-Cell Repertoires in Neoantigen-Targeted Cancer Immunotherapy. AB - T cells can recognize peptides encoded by mutated genes, but analysis of tumor infiltrating lymphocytes suggests that very few neoantigens spontaneously elicit T-cell responses. This may be an important reason why immune checkpoint inhibitors are mainly effective in tumors with a high mutational burden. Reasons for clinically insufficient responses to neoantigens might be inefficient priming, inhibition, or deletion of the cognate T cells. Responses can be dramatically improved by cancer immunotherapy such as checkpoint inhibition, but often with temporary effects. By contrast, T cells from human leukocyte antigen (HLA)-matched donors can cure diseases such as chronic myeloid leukemia. The therapeutic effect is mediated by donor T cells recognizing polymorphic peptides for which the donor and patient are disparate, presented on self-HLA. Donor T cell repertoires are unbiased by the immunosuppressive environment of the tumor. A recent study demonstrated that T cells from healthy individuals are able to respond to neoantigens that are ignored by tumor-infiltrating T cells of melanoma patients. In this review, we discuss possible reasons why neoantigens escape host T cells and how these limitations may be overcome by utilization of donor-derived T-cell repertoires to facilitate rational design of neoantigen-targeted immunotherapy. PMID- 29321774 TI - Amino Acid Sensing via General Control Nonderepressible-2 Kinase and Immunological Programming. AB - Metabolic adaptation to the changing nutrient levels in the cellular microenvironment plays a decisive role in the maintenance of homeostasis. Eukaryotic cells are equipped with nutrient sensors, which sense the fluctuating nutrients levels and accordingly program the cellular machinery to mount an appropriate response. Nutrients including amino acids play a vital role in maintaining cellular homeostasis. Therefore, over the evolution, different species have developed diverse mechanisms to detect amino acids abundance or scarcity. Immune responses have been known to be closely associated with the cellular metabolism especially amino acid sensing pathway, which influences innate as well as adaptive immune-effector functions. Thus, exploring the cross talk between amino acid sensing mechanisms and immune responses in disease as well as in normal physiological conditions might open up avenues to explore how this association can be exploited to tailor immunological functions toward the design of better therapeutics for controlling metabolic diseases. In this review, we discuss the advances in the knowledge of various amino acid sensing pathways including general control nonderepressible-2 kinase in the control of inflammation and metabolic diseases. PMID- 29321776 TI - Structure-Activity Relationship of Plesiomonas shigelloides Lipid A to the Production of TNF-alpha, IL-1beta, and IL-6 by Human and Murine Macrophages. AB - Plesiomonas shigelloides is a Gram-negative bacterium that is associated with diarrheal disease in humans. Lipopolysaccharide (LPS) is the main surface antigen and virulence factor of this bacterium. The lipid A (LA) moiety of LPS is the main region recognized by target cells of immune system. Here, we evaluated the biological activities of P. shigelloides LA for their abilities to induce the productions of proinflammatory cytokines (TNF-alpha, IL-1beta, and IL-6) by human and murine macrophages [THP-1 macrophages and immortalized murine bone marrow derived macrophages (iBMDM)]. Four native P. shigelloides LA preparations differing in their phosphoethanolamine (PEtn) substitution, length, number, and saturation of fatty acids were compared with Escherichia coli O55 LA. The bisphosphorylated, hexaacylated, and asymmetric forms of the P. shigelloides and E. coli LA molecules had similar activities in human and murine macrophages, indicating that shortening of the acyl chains in P. shigelloides LA had no effect on its in vitro activities. The PEtn decoration also had no impact on the interaction with the toll-like receptor 4/MD-2 receptor complex. The heptaacylated form of P. shigelloides LA decorated with 16:0 exhibited strong effect on proinflammatory activity, significantly decreasing the levels of all tested cytokines in both murine and human macrophages. Our results revealed that despite the presence of shorter acyl chains and an unsaturated acyl residue (16:1), the bisphosphorylated, hexaacylated, and asymmetric forms of P. shigelloides LA represent highly immunostimulatory structures. PMID- 29321775 TI - Myosin 1g Contributes to CD44 Adhesion Protein and Lipid Rafts Recycling and Controls CD44 Capping and Cell Migration in B Lymphocytes. AB - Cell migration and adhesion are critical for immune system function and involve many proteins, which must be continuously transported and recycled in the cell. Recycling of adhesion molecules requires the participation of several proteins, including actin, tubulin, and GTPases, and of membrane components such as sphingolipids and cholesterol. However, roles of actin motor proteins in adhesion molecule recycling are poorly understood. In this study, we identified myosin 1g as one of the important motor proteins that drives recycling of the adhesion protein CD44 in B lymphocytes. We demonstrate that the lack of Myo1g decreases the cell-surface levels of CD44 and of the lipid raft surrogate GM1. In cells depleted of Myo1g, the recycling of CD44 was delayed, the delay seems to be caused at the level of formation of recycling complex and entry into recycling endosomes. Moreover, a defective lipid raft recycling in Myo1g-deficient cells had an impact both on the capping of CD44 and on cell migration. Both processes required the transportation of lipid rafts to the cell surface to deliver signaling components. Furthermore, the extramembrane was essential for cell expansion and remodeling of the plasma membrane topology. Therefore, Myo1g is important during the recycling of lipid rafts to the membrane and to the accompanied proteins that regulate plasma membrane plasticity. Thus, Myosin 1g contributes to cell adhesion and cell migration through CD44 recycling in B lymphocytes. PMID- 29321777 TI - How Endothelial Cells Adapt Their Metabolism to Form Vessels in Tumors. AB - Endothelial cells (ECs) line blood vessels, i.e., vital conduits for oxygen and nutrient delivery to distant tissues. While mostly present as quiescent "phalanx" cells throughout adult life, ECs can rapidly switch to a migratory "tip" cell and a proliferative "stalk" cell, and sprout into avascular tissue to form new blood vessels. The angiogenic switch has long been considered to be primarily orchestrated by the activity of angiogenic molecules. However, recent evidence illustrates an instrumental role of cellular metabolism in vessel sprouting, whereby ECs require specific metabolic adaptations to grow. Here, we overview the emerging picture that tip, stalk, and phalanx cells have distinct metabolic signatures and discuss how these signatures can become deregulated in pathological conditions, such as in cancer. PMID- 29321778 TI - Immunosuppressive Effect of B7-H4 Pathway in a Murine Systemic Lupus Erythematosus Model. AB - B7-H4, one of the co-stimulatory molecules of the B7 family, has been shown to play an important role in negatively regulating the adaptive immune response by inhibiting the proliferation, activation, and cytokine production of T cells. In this study, we investigate the role of B7-H4 in development of systemic lupus erythematosus (SLE). We investigated a murine model of SLE using transfer of bone marrow-derived dendritic cells (BMDCs) that were incubated with activated syngeneic lymphocyte-derived DNA. The recipient mouse produced anti-ds-DNA antibodies as well as displayed splenomegaly and lymphadenopathy as shown by significantly increased weights, and the kidneys showed lupus-like pathological changes include urine protein and glomerulonephritis with hyperplasia in glomeruli and increased mesangial cells and vasculitis with perivascular cell infiltration, glomerular deposition of IgG and complement C3. We showed that B7 H4 deficiency in BMDCs could cause greater production of anti-ds-DNA antibodies in transferred mice, and the lymph tissue swelling and the kidney lesions were also exacerbated with B7-H4 deficiency. Treatment with a B7-H4 antagonist antibody also aggravated the lupus model. Conversely, B7-H4 Ig alleviated the lupus manifestations. Therefore, we conclude that B7-H4 is a negative check point for the development of SLE in this murine model. These results suggest that this approach may have a clinical potential in treating human SLE. PMID- 29321779 TI - Exercise Prevents Enhanced Postoperative Neuroinflammation and Cognitive Decline and Rectifies the Gut Microbiome in a Rat Model of Metabolic Syndrome. AB - Introduction: Postoperative cognitive decline (PCD) can affect in excess of 10% of surgical patients and can be considerably higher with risk factors including advanced age, perioperative infection, and metabolic conditions such as obesity and insulin resistance. To define underlying pathophysiologic processes, we used animal models including a rat model of metabolic syndrome generated by breeding for a trait of low aerobic exercise tolerance. After 35 generations, the low capacity runner (LCR) rats differ 10-fold in their aerobic exercise capacity from high capacity runner (HCR) rats. The LCR rats respond to surgical procedure with an abnormal phenotype consisting of exaggerated and persistent PCD and failure to resolve neuroinflammation. We determined whether preoperative exercise can rectify the abnormal surgical phenotype. Materials and methods: Following institutional approval of the protocol each of male LCR and male HCR rats were randomly assigned to four groups and subjected to isoflurane anesthesia and tibia fracture with internal fixation (surgery) or anesthesia alone (sham surgery) and to a preoperative exercise regimen that involved walking for 10 km on a treadmill over 6 weeks (exercise) or being placed on a stationary treadmill (no exercise). Feces were collected before and after exercise for assessment of gut microbiome. Three days following surgery or sham surgery the rats were tested for ability to recall a contextual aversive stimulus in a trace fear conditioning paradigm. Thereafter some rats were euthanized and the hippocampus harvested for analysis of inflammatory mediators. At 3 months, the remainder of the rats were tested for memory recall by the probe test in a Morris Water Maze. Results: Postoperatively, LCR rats exhibited exaggerated cognitive decline both at 3 days and at 3 months that was prevented by preoperative exercise. Similarly, LCR rats had excessive postoperative neuroinflammation that was normalized by preoperative exercise. Diversity of the gut microbiome in the LCR rats improved after exercise. Discussion: Preoperative exercise eliminated the metabolic syndrome risk for the abnormal surgical phenotype and was associated with a more diverse gut microbiome. Prehabilitation with exercise should be considered as a possible intervention to prevent exaggerated and persistent PCD in high-risk settings. PMID- 29321780 TI - Granulocytes: New Members of the Antigen-Presenting Cell Family. AB - Granulocytes, the most abundant types of leukocytes, are the first line of defense against pathogen invasion. However, the plasticity and diversity of granulocytes have been increasingly revealed, especially with regard to their versatile functions in orchestrating adaptive immune responses. A substantial body of recent evidence demonstrates that granulocytes can acquire the function as antigen-presenting cells under pathological or inflammatory conditions. In addition, they can acquire surface expression of MHC class II and costimulatory molecules as well as T cell stimulatory behavior when cultured with selected cytokines. The classic view of granulocytes as terminally differentiated, short lived phagocytes is therefore changing to phenotypically and functionally heterogeneous cells that are engaged in cross-talk with other leukocyte populations and provide an additional link between innate and adaptive immunity. In this brief review, we summarize the current knowledge on the antigen presenting capacity of granulocyte subsets (neutrophils, eosinophils, and basophils). Underlying mechanisms, relevant physiological significance and potential controversies are also discussed. PMID- 29321781 TI - Mucosal Mesenchymal Cells: Secondary Barrier and Peripheral Educator for the Gut Immune System. AB - Stromal connective tissue contains mesenchymal cells, including fibroblasts and myofibroblasts, which line the tissue structure. However, it has been identified that the function of mesenchymal cells is not just structural-they also play critical roles in the creation and regulation of intestinal homeostasis. Thus, mucosal mesenchymal cells instruct intestinal immune cell education (or peripheral immune education) and epithelial cell differentiation thereby shaping the local environment of the mucosal immune system. Malfunction of the mesenchymal cell-mediated instruction system (e.g., fibrosis) leads to pathological conditions such as intestinal stricture. PMID- 29321782 TI - Functional Characterization of the Disease-Associated N-Terminal Complement Factor H Mutation W198R. AB - Dysregulation of the complement alternative pathway is involved in the pathogenesis of several diseases, including the kidney diseases atypical hemolytic uremic syndrome (aHUS) and C3 glomerulopathy (C3G). In a patient, initially diagnosed with chronic glomerulonephritis, possibly C3G, and who 6 years later had an episode of aHUS, a heterozygous missense mutation leading to a tryptophan to arginine exchange (W198R) in the factor H (FH) complement control protein (CCP) 3 domain has previously been identified. The aim of this study was to clarify the functional relevance of this mutation. To this end, wild-type (FH1 4WT) and mutant (FH1-4W198R) CCPs 1-4 of FH were expressed as recombinant proteins. The FH1-4W198R mutant showed decreased C3b binding compared with FH1 4WT. FH1-4W198R had reduced cofactor and decay accelerating activity compared with the wild-type protein. Hemolysis assays demonstrated impaired capacity of FH1-4W198R to protect rabbit erythrocytes from human complement-mediated lysis, and also to prevent lysis of sheep erythrocytes in human serum induced by a monoclonal antibody binding in FH CCP5 domain, compared with that of FH1-4WT. Thus, the FH W198R exchange results in impaired complement alternative pathway regulation. The heterozygous nature of this mutation in the index patient may explain the manifestation of two diseases, likely due to different triggers leading to complement dysregulation in plasma or on cell surfaces. PMID- 29321783 TI - Differential Susceptibility to Infectious Respiratory Diseases between Males and Females Linked to Sex-Specific Innate Immune Inflammatory Response. AB - It is widely acknowledged that males and females exhibit contrasting degrees of susceptibility to infectious and non-infectious inflammatory diseases. This is particularly observed in respiratory diseases where human males are more likely to be affected by infection-induced acute inflammations compared to females. The type and magnitude of the innate immune inflammatory response play a cardinal role in this sex bias. Animal models mimicking human respiratory diseases have been used to address the biological factors that could explain the distinct outcomes. In this review, we focus on our current knowledge about experimental studies investigating sex-specific differences in infection-induced respiratory diseases and we provide an update on the most important innate immune mechanisms that could explain sex bias of the inflammatory response. We also discuss whether conclusions drawn from animal studies could be relevant to human. PMID- 29321784 TI - Positive Feedback Regulation between Transglutaminase 2 and Toll-Like Receptor 4 Signaling in Hepatic Stellate Cells Correlates with Liver Fibrosis Post Schistosoma japonicum Infection. AB - Liver fibrosis induced by Schistosoma japonicum (Sj) infection is characterized by the accumulation of extracellular matrix (ECM). The activated and differentiated hepatic stellate cells (HSCs) are the predominant ECM-producing cell type in the liver. Toll-like receptor (TLR) 4 pathway activation plays a key role in mice liver fibrosis models induced by alcohol, biliary ligation, and carbon tetrachloride 4. In this work, we found that TLR4 pathway activation correlated with the severity of liver fibrosis post Sj infection. The TLR4 receptor inhibitor TAK242 reduced the extent of liver fibrosis. The increased expression of TLR4, alpha-smooth muscle actin (alpha-SMA), and cytoglobin was observed in the HSCs of mouse liver after Sj infection. In response to stimulation with either lipopolysaccharide or Sj's soluble egg antigen (SEA), high levels of TLR4 and alpha-SMA were induced in HSCs and were inhibited by TAK242 treatment. In previous work, we had reported that a high level of transglutaminase 2 (TGM2) is crucial for liver fibrosis post Sj infection. Herein, we found that TLR4 signaling also controlled Tgm2 expression. Inhibition of TGM2 activity by cystamine (CTM) in Sj-infected mice or in HSCs induced with all-trans-retinoic acid (ATRA) stimulation led to a lowered activation of TLR4 signaling and a reduced alpha-SMA expression. These results were confirmed by downregulating the Tgm2 gene by specific siRNA. These observations implied the presence of a positive feedback regulation between TGM2 and TLR4 signaling in HSCs that correlated with liver fibrosis post Sj infection. This novel connection between TGM2 and TLR4 pathway activation in liver fibrosis induced by Sj infection enhances our understanding of liver diseases. PMID- 29321786 TI - Arabidopsis Basic Helix-Loop-Helix 34 (bHLH34) Is Involved in Glucose Signaling through Binding to a GAGA Cis-Element. AB - The modulation of glucose (Glc) homeostasis and signaling is crucial for plant growth and development. Nevertheless, the molecular signaling mechanism by which a plant senses a cellular Glc level and coordinates the expression of Glc responsive genes is still incompletely understood. Previous studies have shown that Arabidopsis thaliana plasma membrane Glc-responsive regulator (AtPGR) is a component of the Glc-responsive pathway. Here, we demonstrated that a transcription factor bHLH34 binds to 5'-GAGA-3' element of the promoter region of AtPGR in vitro, and activates beta-glucuronidase (GUS) activity upon Glc treatment in AtPGR promoter-GUS transgenic plants. Gain- and loss-of-function analyses suggested that the bHLH34 involved in the responses to not only Glc, but also abscisic acid (ABA) and salinity. These results suggest that bHLH34 functions as a transcription factor in the Glc-mediated stress responsive pathway as well as an activator of AtPGR transcription. Furthermore, genetic experiments revealed that in Glc response, the functions of bHLH34 are different from that of a bHLH104, a homolog of bHLH34. Collectively, our findings indicate that bHLH34 is a positive regulator of Glc, and may affect ABA or salinity response, whereas bHLH104 is a negative regulator and epistatic to bHLH34 in the Glc response. PMID- 29321785 TI - miR160 and miR166/165 Contribute to the LEC2-Mediated Auxin Response Involved in the Somatic Embryogenesis Induction in Arabidopsis. AB - MicroRNAs are non-coding small RNA molecules that are involved in the post transcriptional regulation of the genes that control various developmental processes in plants, including zygotic embryogenesis (ZE). miRNAs are also believed to regulate somatic embryogenesis (SE), a counterpart of the ZE that is induced in vitro in plant somatic cells. However, the roles of specific miRNAs in the regulation of the genes involved in SE, in particular those encoding transcription factors (TFs) with an essential function during SE including LEAFY COTYLEDON2 (LEC2), remain mostly unknown. The aim of the study was to reveal the function of miR165/166 and miR160 in the LEC2-controlled pathway of SE that is induced in in vitro cultured Arabidopsis explants.In ZE, miR165/166 controls the PHABULOSA/PHAVOLUTA (PHB/PHV) genes, which are the positive regulators of LEC2, while miR160 targets the AUXIN RESPONSE FACTORS (ARF10, ARF16, ARF17) that control the auxin signaling pathway, which plays key role in LEC2-mediated SE. We found that a deregulated expression/function of miR165/166 and miR160 resulted in a significant accumulation of auxin in the cultured explants and the spontaneous formation of somatic embryos. Our results show that miR165/166 might contribute to SE induction via targeting PHB, a positive regulator of LEC2 that controls embryogenic induction via activation of auxin biosynthesis pathway (Wojcikowska et al., 2013). Similar to miR165/166, miR160 was indicated to control SE induction through auxin-related pathways and the negative impact of miR160 on ARF10/ARF16/ARF17 was shown in an embryogenic culture. Altogether, the results suggest that the miR165/166- and miR160-node contribute to the LEC2-mediated auxin-related pathway of embryogenic transition that is induced in the somatic cells of Arabidopsis. A model summarizing the suggested regulatory interactions between the miR165/166-PHB and miR160-ARF10/ARF16/ARF17 nodes that control SE induction in Arabidopsis was proposed. PMID- 29321788 TI - Effects of Soil Water Deficit on Insecticidal Protein Expression in Boll Shells of Transgenic Bt Cotton and the Mechanism. AB - This study was conducted to investigate the effects of soil water deficit on insecticidal protein expression in boll shells of cotton transgenic for a Bt gene. In 2014, Bt cotton cultivars Sikang 1 (a conventional cultivar) and Sikang 3 (a hybrid cultivar) were planted in pots and five soil water content treatments were imposed at peak boll stage: 15% (G1), 35% (G2), 40% (G3), 60% (G4), and 75% field capacity (CK), respectively. Four treatments (G2, G3, G4, and CK) were repeated in 2015 in the field. Results showed that the insecticidal protein content of boll shells decreased with increasing water deficit. Compared with CK, boll shell insecticidal protein content decreased significantly when soil water content was below 60% of maximum water holding capacity for Sikang 1 and Sikang 3. However, increased Bt gene expression was observed when boll shell insecticidal protein content was significantly reduced. Activity assays of key enzymes in nitrogen metabolism showed that boll shell protease and peptidase increased but nitrogen reductase and glutamic-pyruvic transaminase (GPT) decreased. Insecticidal protein content exhibited significant positive correlation with nitrogen reductase and GPT activities; and significant negative correlation with protease and peptidase activities. These findings suggest that the decrease of insecticidal protein content associated with increasing water deficit was a net result of decreased synthesis and increased decomposition. PMID- 29321787 TI - Genetic Variation and Association Mapping of Seed-Related Traits in Cultivated Peanut (Arachis hypogaea L.) Using Single-Locus Simple Sequence Repeat Markers. AB - Cultivated peanut (Arachis hypogaea L.) is an allotetraploid (AABB, 2n = 4x = 40), valued for its edible oil and digestible protein. Seed size and weight are important agronomical traits significantly influence the yield and nutritional composition of peanut. However, the genetic basis of seed-related traits remains ambiguous. Association mapping is a powerful approach for quickly and efficiently exploring the genetic basis of important traits in plants. In this study, a total of 104 peanut accessions were used to identify molecular markers associated with seed-related traits using 554 single-locus simple sequence repeat (SSR) markers. Most of the accessions had no or weak relationship in the peanut panel. The linkage disequilibrium (LD) decayed with the genetic distance of 1cM at the genome level and the LD of B subgenome decayed faster than that of the A subgenome. Large phenotypic variation was observed for four seed-related traits in the association panel. Using mixed linear model with population structure and kinship, a total of 30 significant SSR markers were detected to be associated with four seed-related traits (P < 1.81 * 10-3) in different environments, which explained 11.22-32.30% of the phenotypic variation for each trait. The marker AHGA44686 was simultaneously and repeatedly associated with seed length and hundred-seed weight in multiple environments with large phenotypic variance (26.23 ~ 32.30%). The favorable alleles of associated markers for each seed related trait and the optimal combination of favorable alleles of associated markers were identified to significantly enhance trait performance, revealing a potential of utilization of these associated markers in peanut breeding program. PMID- 29321789 TI - Photoperiodic Regulation of Growth-Dormancy Cycling through Induction of Multiple Bud-Shoot Barriers Preventing Water Transport into the Winter Buds of Norway Spruce. AB - Whereas long days (LDs) sustain shoot elongation, short days (SDs) induce growth cessation and formation of dormant buds in young individuals of a wide range of temperate and boreal tree species. In specific conifers, including Norway spruce, photoperiodic control of bud development is associated with the formation of a plate of thick-walled cells, denoted as the crown, at the base of the bud. Information about cellular characteristics of this crown region is limited. We aimed to test whether the crown region is an important SD-induced barrier ensuring dehydration of the developing winter bud by preventing water influx. Using microscopy and synchrotron techniques, we show here that under LD, cell walls in growing shoot tips had highly methyl-esterified homogalacturonan pectin. During SD-induced bud development, the homogalacturonan in the crown region was de-methyl-esterified, enabling Ca2+ binding and crosslinking, a process known to decrease cell wall water permeability by reducing pectin pore size. In addition, there was abundant callose deposition at plasmodesmata in the crown region, and xylem connections between the bud and the subtending shoot were blocked. Consistent with reduced water transport across the crown region into the bud, uptake of fluorescein in shoot tips was blocked at the base of the bud under SD. Upon transfer from SD to bud-break-inducing LD, these processes were reversed, and aquaporin transcript levels significantly increased in young stem tissue after 4 weeks under LD. These findings indicate that terminal bud development is associated with reduced water transport through decreased cell wall permeability and blocking of plasmodesmata and xylem connections in the crown structure. This provides further understanding of the regulatory mechanism for growth-dormancy cycling in coniferous tree species such as Norway spruce. PMID- 29321790 TI - An Advanced Backcross Population through Synthetic Octaploid Wheat as a "Bridge": Development and QTL Detection for Seed Dormancy. AB - The seed dormancy characteristic is regarded as one of the most critical factors for pre-harvest sprouting (PHS) resistance. As a wild wheat relative species, Aegilops tauschii is a potential genetic resource for improving common wheat. In this study, an advanced backcross population (201 strains) containing only Ae. tauschii segments was developed by means of synthetic octaploid wheat (hexaploid wheat Zhoumai 18 * Ae. tauschii T093). Subsequently, seed dormancy rate (Dor) in the advanced backcross population was evaluated on the day 3, 5 and 7, in which 2 major QTLs (QDor-2D and QDor-3D) were observed on chromosomes 2D and 3D with phenotypic variance explained values (PVEs) of 10.25 and 20.40%, respectively. Further investigation revealed significant correlation between QDor-3D and Tamyb10 gene, while no association was found between the former and TaVp1 gene, implying that QDor-3D site could be of closer position to Tamyb10. The obtained quantitative trait locus sites (QTLs) in this work could be applied to develop wheat cultivars with PHS resistance. PMID- 29321791 TI - Spatial Patterns of Species Diversity and Phylogenetic Structure of Plant Communities in the Tianshan Mountains, Arid Central Asia. AB - The Tianshan Mountains, located in arid Central Asia, have a humid climate and are biodiversity hotspots. Here, we aimed to clarify whether the pattern of species diversity and the phylogenetic structure of plant communities is affected by environmental variables and glacial refugia. In this study, plant community assemblies of 17 research sites with a total of 35 sample plots were investigated at the grassland/woodland boundaries on the Tianshan Mountains. Community phylogeny of these plant communities was constructed based on two plant DNA barcode regions. The indices of phylogenetic diversity and phylogenetic community structure were calculated for these sample plots. We first estimated the correlation coefficients between species richness (SR) and environmental variables as well as the presence of glacial refugia. We then mapped the significant values of indices of community phylogeny (PD, RPD, NRI, and NTI) to investigate the correlation between community phylogeny and environmental structure or macrozones in the study area. The results showed that a significantly higher value of SR was obtained for the refugial groups than for the colonizing groups (P < 0.05); presence of refugia and environmental variables were highly correlated to the pattern of variation in SR. Indices of community phylogeny were not significantly different between refugial and colonizing regions. Comparison with the humid western part showed that plant communities in the arid eastern part of the Tianshan Mountains tended to display more significant phylogenetic overdispersion. The variation tendency of the PhyloSor index showed that the increase in macro-geographical and environmental distance did not influence obvious phylogenetic dissimilarities between different sample plots. In conclusion, glacial refugia and environmental factors profoundly influenced the pattern of SR, but community phylogenetic structure was not affected by glacial refugia among different plant communities on the Tianshan Mountains. This pattern of community phylogenetic structure could have resulted from shared ancestry and species pool among these sample plots. PMID- 29321792 TI - The Challenge to Translate OMICS Data to Whole Plant Physiology: The Context Matters. PMID- 29321793 TI - Novel Genomic and Evolutionary Perspective of Cyanobacterial tRNAs. AB - Transfer RNA (tRNA) plays a central role in protein synthesis and acts as an adaptor molecule between an mRNA and an amino acid. A tRNA has an L-shaped clover leaf-like structure and contains an acceptor arm, D-arm, D-loop, anti-codon arm, anti-codon loop, variable loop, Psi-arm and Psi-loop. All of these arms and loops are important in protein translation. Here, we aimed to delineate the genomic architecture of these arms and loops in cyanobacterial tRNA. Studies from tRNA sequences from 61 cyanobacterial species showed that, except for few tRNAs (tRNAAsn, tRNALeu, tRNAGln, and tRNAMet), all contained a G nucleotide at the 1st position in the acceptor arm. tRNALeu and tRNAMet did not contain any conserved nucleotides at the 1st position whereas tRNAAsn and tRNAGln contained a conserved U1 nucleotide. In several tRNA families, the variable region also contained conserved nucleotides. Except for tRNAMet and tRNAGlu, all other tRNAs contained a conserved A nucleotide at the 1st position in the D-loop. The Psi-loop contained a conserved U1-U2-C3-x-A5-x-U7 sequence, except for tRNAGly, tRNAAla, tRNAVal, tRNAPhe, tRNAThr, and tRNAGln in which the U7 nucleotide was not conserved. However, in tRNAAsp, the U7 nucleotide was substituted with a C7 nucleotide. Additionally, tRNAArg, tRNAGly, and tRNALys of cyanobacteria contained a group I intron within the anti-codon loop region. Maximum composite likelihood study on the transition/transversion of cyanobacterial tRNA revealed that the rate of transition was higher than the rate of transversion. An evolutionary tree was constructed to understand the evolution of cyanobacterial tRNA and analyses revealed that cyanobacterial tRNA may have evolved polyphyletically with high rate of gene loss. PMID- 29321794 TI - Individual Clinically Diagnosed with CHARGE Syndrome but with a Mutation in KMT2D, a Gene Associated with Kabuki Syndrome: A Case Report. AB - We report a Japanese female patient presenting with classic features of CHARGE syndrome, including choanal atresia, growth and development retardation, ear malformations, genital anomalies, multiple endocrine deficiency, and unilateral facial nerve palsy. She was clinically diagnosed with typical CHARGE syndrome, but genetic analysis using the TruSight One Sequence Panel revealed a germline heterozygous mutation in KMT2D with no pathogenic CHD7 alterations associated with CHARGE syndrome. Kabuki syndrome is a rare multisystem disorder characterized by five cardinal manifestations including typical facial features, skeletal anomalies, dermatoglyphic abnormalities, mild to moderate intellectual disability, and postnatal growth deficiency. Germline mutations in KMT2D underlie the molecular pathogenesis of 52-76% of patients with Kabuki syndrome. This is an instructive case that clearly represents a phenotypic overlap between Kabuki syndrome and CHARGE syndrome. It suggests the importance of considering the possibility of a diagnosis of Kabuki syndrome even if patients present with typical symptoms and meet diagnostic criteria of CHARGE syndrome. The case also emphasizes the impact of non-biased exhaustive genetic analysis by next generation sequencing in the genetic diagnosis of rare congenital disorders with atypical manifestations. PMID- 29321795 TI - Near-infrared spectroscopy in adult cardiac surgery: between conflicting results and unexpected uses. PMID- 29321796 TI - Heart rate variability: a new tool to predict complications in adult cardiac surgery. AB - Heart rate variability (HRV) refers to the variations between consecutive heartbeats, which depend on the continuous modulation of the sympathetic and parasympathetic branches of the autonomic nervous system. HRV has been shown to be effective as a predictor of risk after myocardial infarction and an early warning sign of diabetic neuropathy, and in the cardiology setting is now recognized to be a useful tool for risk-stratification after hospital admission and after discharge. Recent evidences suggest that HRV analysis might predict complications even in patients undergoing cardiac surgery, and the present review summarizes the importance of HRV analysis in adult cardiac surgery and the perspectives for HRV use in current clinical practice. Although future larger studies are warranted before HRV can be included into daily clinical practice in adult cardiac surgery, HRV is a novel tool which might detect autonomic instability in the early postoperative phase and during hospital stay, thus predicting or prompt-diagnosing many of the post-operative complications. PMID- 29321797 TI - Prediction model of in-hospital mortality in elderly patients with acute heart failure based on retrospective study. AB - Objectives: The aim of this study was to develop a clinical risk model that is predictive of in-hospital mortality in elderly patients hospitalized with acute heart failure (AHF). Methods: 2486 patients who were 60 years and older from intensive care units of Cardiology Department in the hospital were analyzed. Independent risk factors for in-hospital mortality were obtained by binary logistic regression and then used to establish the risk prediction score system (RPSS). The area under the curve (AUC) of receiver operator characteristic and C statistic test were adopted to assess the performance of RPSS and to compare with previous get with the guidelines-heart failure (GWTG-HF). Results: By binary logistic regression analysis, heart rate (OR: 1.043, 95% CI: 1.030-1.057, P < 0.001), left ventricular ejection fraction (OR: 0.918, 95% CI: 0.833-0.966, P < 0.001), pH value (OR: 0.001, 95% CI: 0.000-0.002, P < 0.001), renal dysfunction (OR: 0.120, 95% CI: 0.066-0.220, P < 0.001) and NT-pro BNP (OR: 3.463, 95% CI: 1.870-6.413, P < 0.001) were independent risk factors of in-hospital mortality for elderly AHF patients. Additionally, RPSS, which was composed of all the above mentioned parameters, provided a better risk prediction than GWTG-THF (AUC: 0.873 vs. 0.818, P = 0.016). Conclusions: Our risk prediction model, RPSS, provided a good prediction for in-hospital mortality in elderly patients with AHF. PMID- 29321798 TI - Impact of triple antithrombotic therapy in patients with acute coronary syndrome undergoing percutaneous coronary intervention in real-world practice. AB - Objective: The optimal antithrombotic regimen for patients on oral anticoagulation (OAC) after acute coronary syndrome (ACS) and percutaneous coronary intervention (PCI) remains debated. This study sought to evaluate the efficacy and safety of OAC plus clopidogrel with or without aspirin in a real world setting. Methods: We retrospectively analyzed data from an international, multi-center registry between 2003 and 2014 (n = 15,401). Patients with ACS and receiving OAC after PCI were screened. The composite primary endpoint was 1-year all-cause death, re-infarction, or severe bleeding. Results: The final analysis enrolled 642 patients including 62 patients (9.7%) with OAC and clopidogrel (dual therapy), and 580 patients (90.3%) with the combination of aspirin, OAC and clopidogrel (triple therapy). Patients on triple therapy were more often female and were more likely to have comorbidities. There was no significant difference regarding the primary end point between dual therapy with triple therapy patients [17.74% vs. 17.24%; unadjusted hazard ratio (HR): 1.035; 95% confidence interval (CI): 0.556-1.929; adjusted HR: 1.026; 95% CI: 0.544-1.937]. However, the re infarction rate was significantly higher in dual therapy than triple therapy patients (14.52% vs. 5.34%; unadjusted HR: 2.807; 95% CI: 1.329-5.928; adjusted HR: 2.333; 95% CI: 1.078-5.047). In addition, there was no difference between two regimes in all-cause death and severe bleeding. Conclusions: In real-life patients with ACS following PCI and with an indication of OAC, triple therapy was not associated with an increased rate of adverse outcomes compared to dual therapy. Moreover, it decreased risk of re-infarction and did not increase risk of severe bleeding. PMID- 29321799 TI - Independent and combined effects of environmental factors and miR-126, miR-143, and miR-145 on the risk of coronary heart disease. AB - Objective: To evaluate the effects of environmental factors and microRNAs (miRNAs) (miR-126, miR-143, and miR-145) on the risk of coronary heart disease (CHD). Methods: A frequency-matched case-control study (450 patients, 450 controls) was conducted from April 2014 to December 2016 in Fuzhou City, China. Environmental factors were investigated using a self-administered questionnaire, and the expression levels of miR-126, miR-143, and miR-145 were determined by quantitative real-time Polymerase Chain Reaction (PCR) in peripheral blood mononuclear cells. Unconditional logistic regression models were used for statistical evaluation. Results: Alcohol consumption, high-salt diets, high intensity work, and lack of physical activity were significantly associated with increased CHD risk, whereas light diet was significantly associated with decreased risk. MiR-126, miR-143, and miR-145 were highly expressed in the CHD group compared with the control group. After adjustment for other environmental factors, unconditional logistic regression results revealed that miR-126, miR 143, and depression were the independent risk factors of CHD, and light diet was the independent protective factor of CHD. Conclusions: Our data suggest that a family history of CHD, anxiety, and alcohol consumption was significantly associated with increased CHD risk, whereas light diet was significantly associated with decreased risk. Furthermore, miR-126 and miR-143 in combination with several risk factors, could play a joint role in the development of CHD. Therefore, it is necessary to manage patients with CHD in all directions and multiple level. PMID- 29321802 TI - Early prosthetic valve endocarditis after transcatheter aortic valve implantation with periannular complication. PMID- 29321800 TI - Vascular protection by high-density lipoprotein-associated sphingosine-1 phosphate. AB - Epidemiological studies and animal experiments have consistently demonstrated cardiovascular protection by high-density lipoprotein (HDL). Findings from a growing number of studies further indicate that sphingosine-1-phosphate (S1P) mediates many of the beneficial effects of HDL on the cardiovascular system, including vasodilatation, angiogenesis, maintenance of endothelial barrier function, and protection against atherosclerosis and ischemia/reperfusion injury. In this review, we summarize the most recent literature investigating the effects of HDL-S1P on cardiovascular health and highlight potential opportunities for clinical translation of these findings. PMID- 29321801 TI - The role of immune abnormality in depression and cardiovascular disease. AB - Depression and cardiovascular disease (CVD) are both highly prevalent disorders, and some evidence shows that there is a 'vicious cycle' linking major depression and CVD. There is also growing evidence that immune abnormalities underpin the common pathophysiology of both CVD and major depression. The abnormalities include the following: abnormal levels of inflammatory markers, such as interleukin-6 (IL-6), interleukin-1beta (IL-1beta), tumor necrosis factor alpha (TNF-alpha) and interleukin-12 (IL-12); increased acute phase proteins, such as C reactive protein, fibrinogen and haptoglobin; and abnormal complement factors. The findings show that major depression and CVD patients have greater immune abnormalities, which may increase depressive symptoms and cardiovascular pathological changes, and that there may be a bidirectional relationship, therefore more prospective studies are needed to draw conclusions. PMID- 29321803 TI - The eyes are the window to the heart: one case of cardiac amyloidosis with eyelid swelling as the initial symptom. PMID- 29321804 TI - The relationship between NT-proBNP and Depression in Patients with Heart Failure. PMID- 29321805 TI - Simultaneous measurement of formic acid, methanol and ethanol in vitreous and blood samples of postmortem by headspace GC-FID. AB - Background: Formic acid (formate) is the main reason for toxicity and death through methanol poisoning. The simultaneous determination of methanol, ethanol, and formate in the body can help to discover the cause of death and is useful in the diagnosis of acute methanol poisoning. The measurement of formate is not yet available in Iran. With regard to the increasing rate of methanol poisoning and its related mortality in Iran, as well as the main role of formate in methanol poisoning, this study was designed to set up an analytical method for the concurrent determination of ethanol, methanol, and formate. Methods: Following the modification of a previously developed gas chromatography method, vitreous and blood samples of 43 postmortem cases with a history of methanol intoxication were collected over a period of 2 years at the Legal Medicine Organization of Mashhad. Thereafter, ethanol, methanol, and formate concentrations were measured by headspace GC/FID. Formate esterification was performed by the methylation of formate with sulfuric acid and methanol. In order to confirm the esterification method for the production of methyl formate, we used gas chromatography with a mass detector (GC/MS) because of its higher sensitivity and accuracy. Furthermore, the correlations between formate and methanol concentrations in blood and vitreous samples, and between formate and methanol were investigated. Results: A significant relationship was found only between methanol concentrations in blood and vitreous samples (P < 0.03). Conclusions: In postmortems, with the passage of time since alcohol ingestion, the measurement of only methanol concentration cannot determine the degree of toxicity or the cause of death. Therefore, using the present analytical method and measurement of formic acid, we can estimate the degree of toxicity and cause of death. PMID- 29321806 TI - Development of an in vitro pre-mRNA splicing assay using plant nuclear extract. AB - Background: Pre-mRNA splicing is an essential post-transcriptional process in all eukaryotes. In vitro splicing systems using nuclear or cytoplasmic extracts from mammalian cells, yeast, and Drosophila have provided a wealth of mechanistic insights into assembly and composition of the spliceosome, splicing regulatory proteins and mechanisms of pre-mRNA splicing in non-plant systems. The lack of an in vitro splicing system prepared from plant cells has been a major limitation in splicing research in plants. Results: Here we report an in vitro splicing assay system using plant nuclear extract. Several lines of evidence indicate that nuclear extract derived from Arabidopsis seedlings can convert pre-mRNA substrate (LHCB3) into a spliced product. These include: (1) generation of an RNA product that corresponds to the size of expected mRNA, (2) a junction-mapping assay using S1 nuclease revealed that the two exons are spliced together, (3) the reaction conditions are similar to those found with non-plant extracts and (4) finally mutations in conserved donor and acceptor sites abolished the production of the spliced product. Conclusions: This first report on the plant in vitro splicing assay opens new avenues to investigate plant spliceosome assembly and composition, and splicing regulatory mechanisms specific to plants. PMID- 29321807 TI - Different modulation of Panax notoginseng on the absorption profiling of triptolide and tripterine from Tripterygium wilfordii in rat intestine. AB - Background: Compatibility with Panax notoginseng (PN) reduced the plasma concentration of triptolide and delayed the Tmax of Tripterygium wilfordii (TW), the sovereign medicine of Qing-Luo Tong-Bi decoction, which hinted the absorption process of triptolide might be involved in decreasing the toxicity in liver and kidney. Methods: The absorption of triptolide, triptonide, wilforlide and tripterine from monomer, TW, TW-PN, TW-Caulis Sinomenii (TW-CS) and Qing-Luo Tong Bi were analyzed in duodenum, jejunum, ileum and colon of rat via single-pass intestinal perfusion model. An UPLC-MS/MS analysis method was developed to determine the concentration of triptolide, triptonide, wilforlide and tripterine in the inlet and outlet. Then Peff, 10 cm%ABS and Ka were calculated based on the perfusate flux, perfusate volume and candidate chemicals concentration. Results: The absorption of triptolide, triptonide, wilforlide and tripterine in duodenum, jejunum, ileum and colon was independent of concentration within range of 3-9 MUg/mL. The target compounds, triptolide, triptonide, wilforlide and tripterine from the TW extract, showed higher absorption extent and rate than those administrated alone, and compared with the absorption situation of the chemicals of TW extract, the absorption of triptolide, triptonide and wilforlide of the extract of TW-PN, TW-CS and Qing-Luo Tong-Bi were decreased in these intestinal segments. However, PN-promoted tripterine absorption was observed in the intestine. Conclusions: Modulation of absorption of chemicals in TW by subsidiary herbs may be responsible for reinforcing the actions and neutralizing the adverse effects through compatibility in the formula of Qing-Luo Tong-Bi. PN inhibits the absorption of triptolide of TW and promote the absorption of tripterine. PMID- 29321809 TI - Quality of life, delinquency and psychosocial functioning of adolescents in secure residential care: testing two assumptions of the Good Lives Model. AB - Background: In this study, two assumptions derived from the Good Lives Model were examined: whether subjective Quality of Life is related to delinquent behaviour and psychosocial problems, and whether adolescents with adequate coping skills are less likely to commit delinquent behaviour or show psychosocial problems. Method: To this end, data of 95 adolescents with severe psychiatric problems who participated in a four-wave longitudinal study were examined. Subjective Quality of Life was assessed with the ten domains of the Lancashire Quality of Life Profile and coping skills with the Utrecht Coping List for Adolescents. Results: Results showed that adolescents who reported a lower Quality of Life on the health domain had more psychosocial problems at follow-up. No relationship was found between Quality of Life and delinquent behaviour. In addition, active and passive coping were associated with delinquent behaviour and psychosocial functioning at follow-up. Conclusions: Based on the results of this longitudinal study, the strongest support was found for the second assumption derived from the Good Lives Model. Adolescents with adequate coping skills are less likely to commit delinquent behaviour and have fewer psychosocial problems at follow-up. The current study provides support for the use of strength-based elements in the treatment programmes for adolescents in secure residential care. PMID- 29321808 TI - iTRAQ-based proteomic analysis to identify the molecular mechanism of Zhibai Dihuang Granule in the Yin-deficiency-heat syndrome rats. AB - Background: Zhibai Dihuang Granule (ZDG) is a traditional Chinese medicine which has been used to treat Yin-deficiency-heat (YDH) syndrome for thousands of years in China. However, little work has been conducted to explore the molecular mechanism of ZDG in YDH syndrome, and the processes of YDH syndrome prevention and treatment have been developed slowly. The present study was aimed to explore the therapeutic mechanism of ZDG on YDH syndrome. Methods: The YDH syndrome rats were induced by hot Chinese herbs, then treated by ZDG orally for 1 week. Body weight was measured every 2 days. After sacrifice, blood samples were collected and the thymus, adrenal glands, spleen, and liver were immediately removed and weighed. iTRAQ-based proteomics approach was applied to explore the serum protein alterations with the treatment of ZDG, and to investigate the underlying mechanism of ZDG in treating YDH syndrome. Results: The body weights of YDH syndrome rats were significantly decreased compared with control group, and increased in ZDG treated rats. The relative weights of thymus in YDH syndrome rats were increased compared with the control rats, and significantly decreased in after ZDG treatment. In the proteomic analyses, seventy-one proteins were differentially expressed in the YDH syndrome group and the ZDG treated group, including 10 up-regulated and 61 down-regulated proteins. Gene ontology analysis revealed that the differentially expressed proteins were mostly related to immune response, and pathway enrichment analysis showed that these proteins were enriched in coagulation and complement cascades. Enzyme-linked immunosorbent assay was performed to detect the protein levels in coagulation and complement cascades, and the results showed that complement component 5 levels were significantly increased, while fibrinogen gamma chain levels were significantly decreased in the ZDG treated group. Conclusions: We found that ZDG treatment could lead to proteins alteration in immune response, especially in coagulation and complement cascades. ZDG can up-regulate the proteins in the complement cascade to eliminate pathogens, and down-regulate the proteins in the coagulation cascade to suppress inflammation. Our study provides experimental basis to understand the therapeutic mechanism of ZDG and revealed that ZDG can regulate coagulation and complement cascades in treating YDH syndrome. PMID- 29321810 TI - Metabolic engineering of Pichia pastoris for production of isobutanol and isobutyl acetate. AB - Background: Interests in renewable fuels have exploded in recent years as the serious effects of global climate change become apparent. Microbial production of high-energy fuels by economically efficient bioprocesses has emerged as an attractive alternative to the traditional production of transportation fuels. Here, we engineered Pichia pastoris, an industrial workhorse in heterologous enzyme production, to produce the biofuel isobutanol from two renewable carbon sources, glucose and glycerol. Our strategy exploited the yeast's amino acid biosynthetic pathway and diverted the amino acid intermediates to the 2-keto acid degradation pathway for higher alcohol production. To further demonstrate the versatility of our yeast platform, we incorporated a broad-substrate-range alcohol-O-acyltransferase to generate a variety of volatile esters, including isobutyl acetate ester and isopentyl acetate ester. Results: The engineered strain overexpressing the keto-acid degradation pathway was able to produce 284 mg/L of isobutanol when supplemented with 2-ketoisovalerate. To improve the production of isobutanol and eliminate the need to supplement the production media with the expensive 2-ketoisovalerate intermediate, we overexpressed a portion of the amino acid l-valine biosynthetic pathway in the engineered strain. While heterologous expression of the pathway genes from the yeast Saccharomyces cerevisiae did not lead to improvement in isobutanol production in the engineered P. pastoris, overexpression of the endogenous l-valine biosynthetic pathway genes led to a strain that is able to produce 0.89 g/L of isobutanol. Fine-tuning the expression of bottleneck enzymes by employing an episomal plasmid-based expression system further improved the production titer of isobutanol to 2.22 g/L, a 43-fold improvement from the levels observed in the original strain. Finally, heterologous expression of a broad-substrate-range alcohol-O acyltransferase led to the production of isobutyl acetate ester and isopentyl acetate ester at 51 and 24 mg/L, respectively. Conclusions: In this study, we engineered high-level production of the biofuel isobutanol and the corresponding acetate ester by P. pastoris from readily available carbon sources. We envision that our work will provide an economic route to this important class of compounds and establish P. pastoris as a versatile production platform for fuels and chemicals. PMID- 29321812 TI - Construction of an ultrahigh-density genetic linkage map for Jatropha curcas L. and identification of QTL for fruit yield. AB - Background: As an important biofuel plant, the demand for higher yield Jatropha curcas L. is rapidly increasing. However, genetic analysis of Jatropha and molecular breeding for higher yield have been hampered by the limited number of molecular markers available. Results: An ultrahigh-density linkage map for a Jatropha mapping population of 153 individuals was constructed and covered 1380.58 cM of the Jatropha genome, with average marker density of 0.403 cM. The genetic linkage map consisted of 3422 SNP and indel markers, which clustered into 11 linkage groups. With this map, 13 repeatable QTLs (reQTLs) for fruit yield traits were identified. Ten reQTLs, qNF-1, qNF-2a, qNF-2b, qNF-2c, qNF-3, qNF-4, qNF-6, qNF-7a, qNF-7b and qNF-8, that control the number of fruits (NF) mapped to LGs 1, 2, 3, 4, 6, 7 and 8, whereas three reQTLs, qTWF-1, qTWF-2 and qTWF-3, that control the total weight of fruits (TWF) mapped to LGs 1, 2 and 3, respectively. It is interesting that there are two candidate critical genes, which may regulate Jatropha fruit yield. We also identified three pleiotropic reQTL pairs associated with both the NF and TWF traits. Conclusion: This study is the first to report an ultrahigh-density Jatropha genetic linkage map construction, and the markers used in this study showed great potential for QTL mapping. Thirteen fruit-yield reQTLs and two important candidate genes were identified based on this linkage map. This genetic linkage map will be a useful tool for the localization of other economically important QTLs and candidate genes for Jatropha. PMID- 29321811 TI - Gene stacking of multiple traits for high yield of fermentable sugars in plant biomass. AB - Background: Second-generation biofuels produced from biomass can help to decrease dependency on fossil fuels, bringing about many economic and environmental benefits. To make biomass more suitable for biorefinery use, we need a better understanding of plant cell wall biosynthesis. Increasing the ratio of C6 to C5 sugars in the cell wall and decreasing the lignin content are two important targets in engineering of plants that are more suitable for downstream processing for second-generation biofuel production. Results: We have studied the basic mechanisms of cell wall biosynthesis and identified genes involved in biosynthesis of pectic galactan, including the GALS1 galactan synthase and the UDP-galactose/UDP-rhamnose transporter URGT1. We have engineered plants with a more suitable biomass composition by applying these findings, in conjunction with synthetic biology and gene stacking tools. Plants were engineered to have up to fourfold more pectic galactan in stems by overexpressing GALS1, URGT1, and UGE2, a UDP-glucose epimerase. Furthermore, the increased galactan trait was engineered into plants that were already engineered to have low xylan content by restricting xylan biosynthesis to vessels where this polysaccharide is essential. Finally, the high galactan and low xylan traits were stacked with the low lignin trait obtained by expressing the QsuB gene encoding dehydroshikimate dehydratase in lignifying cells. Conclusion: The results show that approaches to increasing C6 sugar content, decreasing xylan, and reducing lignin content can be combined in an additive manner. Thus, the engineered lines obtained by this trait-stacking approach have substantially improved properties from the perspective of biofuel production, and they do not show any obvious negative growth effects. The approach used in this study can be readily transferred to bioenergy crop plants. PMID- 29321813 TI - Novel concept of a modular hip implant could contribute to less implant failure in THA: a hypothesis. AB - Background: The modularity in total hip arthroplasty (THA) allows orthopaedic surgeons for an exact reconstruction of hip biomechanical parameters especially in revision and tumor arthroplasty. Modular structured femoral stems using taper junctions showed increased implant breakage in the recent past. Presentation of the hypothesis: We hypothesize that a novel modular stem-neck-interface leads to less implant breakage compared to conventional femoral stems. Testing of the hypothesis: For this purpose, a novel modular femoral stem for THA was to design and manufacture. Therefore, three different variants of interface mechanisms were developed that enable a simple connection between the stem and the neck modules and allow for intra-operatively adjustment. Three prototypes A, B and C were manufactured and subsequently dynamic fatigue (ISO 7206-6) and body donor tested. Implication of the hypothesis: Modularity in THA is mainly applied in THA as well as in revision and tumor arthroplasty. Modular implants are barely used because of the high risk of breakage. Another risks in this context are taper fretting, corrosion and disconnection. With the novel design, it should be possible to detach the stem and neck module intra-operatively to adapt the anatomical situation. The novel coupling mechanism of the rotating interface seems to be the most suitable for a secure stem-neck connection and is characterized by good intraoperative handling. PMID- 29321814 TI - The epigenetic clock and objectively measured sedentary and walking behavior in older adults: the Lothian Birth Cohort 1936. AB - Background: Estimates of biological age derived from DNA-methylation patterns known as the epigenetic clock-are associated with mortality, physical and cognitive function, and frailty, but little is known about their relationship with sedentary behavior or physical activity. We investigated the cross-sectional relationship between two such estimates of biological age and objectively measured sedentary and walking behavior in older people. Methods: Participants were 248 members of the Lothian Birth Cohort 1936. At age 79 years, sedentary behavior and physical activity were measured over 7 days using an activPAL activity monitor. Biological age was estimated using two measures of DNA methylation-based age acceleration-i.e., extrinsic and intrinsic epigenetic age acceleration. We used linear regression to assess the relationship between these two estimates of biological age and average daily time spent sedentary, number of sit-to-stand transitions, and step count. Results: Of the six associations examined, only two were statistically significant in initial models adjusted for age and sex alone. Greater extrinsic age acceleration was associated with taking fewer steps (regression coefficient (95% CI) - 0.100 (- 0.008, - 0.001), and greater intrinsic age acceleration was associated with making more sit-to-stand transitions (regression coefficient (95% CI) 0.006 (0.0001, 0.012). When we controlled for multiple statistical testing, neither of these associations survived correction (both P >= 0.17). Conclusion: In this cross-sectional study of 79-year-olds, we found no convincing evidence that biological age, as indexed by extrinsic or intrinsic epigenetic age acceleration, was associated with objectively measured sedentary or walking behavior. PMID- 29321815 TI - Circulating plasma microRNA profiling in patients with polymyositis/dermatomyositis before and after treatment: miRNA may be associated with polymyositis/dermatomyositis. AB - Background: MicroRNAs (miRNAs) are involved in the regulation of key biological processes and have been implicated in various diseases, including autoimmune disorders. The pathogenesis of polymyositis (PM) and dermatomyositis (DM) is considered to be mediated by autoimmune reactions. To determine miRNA role in the development and progression of PM and DM, we performed plasma miRNA profiling in PM/DM patients before and after treatment. Methods: Total RNA was isolated from plasma of 10 patients before and after treatment with prednisolone, or, in case of prednisolone resistance or complications, with the combination of calcineurin inhibitors (cyclosporine or tacrolims) and/or pulse intravenous cyclophosphamide. The expression of miRNAs was determined using miRNA microarray and validated by qRT-PCR. Results: More differentially expressed miRNAs were found in plasma of DM patients compared to PM patients before and after treatment, and their profiles were different. Among the differentially expressed plasma miRNA identified by microarray, the levels of hsa-miR-4442 were confirmed by qRT-PCR to be significantly decreased by treatment. In addition, plasma hsa-miR-4442 content in active PM/DM significantly exceeded that in other active autoimmune diseases such as rheumatoid arthritis and systemic lupus erythematosus, as well as in healthy individuals. The level of plasma hsa-miR-4442 was positively correlated with Skeletal Disease Activity in MITAX (Myositis Intention to Treat Activity Index). Conclusion: This is the first report describing plasma miRNA expression profiles in PM/DM patients. The present data suggest that plasma levels of miRNAs may be associated with polymyositis/dermatomyositis and hsa-miR-4442 could be used as a biomarker for PM/DM diagnosis and/or disease activity. PMID- 29321816 TI - ERBB signaling in CTCs of ovarian cancer and glioblastoma. AB - Circulating Tumor Cells (CTCs) are floating cell populations, which are resistant to anoikis after detachment from the primary sites and travel through the circulatory and lymphatic systems to disseminate throughout the body. CTCs are considered as seed cells for metastasis, and thus isolation of CTCs does not require any invasive procedure. Based on the nature and location of ovarian cancer and glioblastoma, the role of CTCs and hematogenous (carried by blood) spreading of tumor cells in these cancers were not understood well. Dysregulation of epidermal growth factor receptor (EGFR/ERBB) family members due to their overexpression and/or mutation have been known to contribute to the etiology and progression of ovarian cancer and glioblastoma. However, the role of ERBB receptors on CTC formation of ovarian cancer and glioblastoma is not well established. This report highlights the role of ERBB family receptors on resistance to anoikis and CTC formation in ovarian cancer and glioblastoma. Recent research on CTCs demonstrates that capturing ERBB receptor positive cells from circulating system is an efficient approach to isolate CTCs for genomic and proteomic characterization of tumor cells. Therefore, ERBB-targeted isolation of CTCs would help to design therapy to treat cancer, determine drug responses and drug-resistant mechanisms in cancer patients. PMID- 29321817 TI - Enhanced MYC association with the NuA4 histone acetyltransferase complex mediated by the adenovirus E1A N-terminal domain activates a subset of MYC target genes highly expressed in cancer cells. AB - The proto-oncogene MYC is a transcription factor over-expressed in many cancers and required for cell survival. Its function is regulated by histone acetyltransferase (HAT) complexes, such as the GCN5 complex and the NuA4/Tip60 complex. However, the roles of the HAT complexes during MYC function in cancer have not been well characterized. We recently showed that adenovirus E1A and its N-terminal 80 aa region, E1A 1-80, interact with the NuA4 complex, through the E1A TRRAP-targeting (ET) domain, and enhance MYC association with the NuA4 complex. We show here that the ET domain mainly targets the MYC-NuA4 complex. By global gene expression analysis using E1A 1-80 and deletion mutants, we have identified a panel of genes activated by targeting the MYC-NuA4 complex and notably enriched for genes involved in ribosome biogenesis and gene expression. A second panel of genes is activated by E1A 1-80 targeting of both the MYC-NuA4 complex and p300, and is enriched for genes involved in DNA replication and cell cycle processes. Both panels of genes are highly expressed in cancer cells. Since the ET domain is essential for E1A-mediated cellular transformation, our results suggest that MYC and the NuA4 complex function cooperatively in cell transformation and cancer. PMID- 29321818 TI - EWS-FLI-1 creates a cell surface microenvironment conducive to IGF signaling by inducing pappalysin-1. AB - Ewing sarcoma is an aggressive cancer of bone and soft tissue in children with poor prognosis. It is characterized by the chromosomal translocation between EWS and an Ets family transcription factor, most commonly FLI-1. EWS-FLI-1 fusion accounts for 85% of Ewing sarcoma cases. EWS-FLI-1 regulates the expression of a number of genes important for sarcomagenesis, can transform NIH3T3 and C3H10T1/2 cells, and is necessary for proliferation and tumorigenicity of Ewing sarcoma cells, suggesting that EWS-FLI-1 is the causative oncoprotein. Here we report that EWS-FLI-1 induces the expression of pappalysin-1 (PAPPA), a cell surface protease that degrades IGF binding proteins (IGFBPs) and increases the bioavailability of IGF. EWS-FLI-1 binds to the pappalysin-1 gene promoter and stimulates the expression of pappalysin-1, leading to degradation of IGFBPs and enhanced IGF signaling. Silencing of pappalysin-1 strongly inhibited anchorage dependent and anchorage-independent growth as well as xenograft tumorigenicity of Ewing sarcoma cells. These results suggest that EWS-FLI-1 creates a cell surface microenvironment conducive to IGF signaling by inducing pappalysin-1, which emerged as a novel target to inhibit IGF signaling in Ewing sarcoma. PMID- 29321819 TI - The induction of endoreduplication and polyploidy by elevated expression of 14-3 3gamma. AB - Several studies have demonstrated that specific 14-3-3 isoforms are frequently elevated in cancer and that these proteins play a role in human tumorigenesis. 14 3-3gamma, an isoform recently demonstrated to function as an oncoprotein, is overexpressed in a variety of human cancers; however, its role in promoting tumorigenesis remains unclear. We previously reported that overexpression of 14-3 3gamma caused the appearance of polyploid cells, a phenotype demonstrated to have profound tumor promoting properties. Here we examined the mechanism driving 14-3 3gamma-induced polyploidization and the effect this has on genomic stability. Using FUCCI probes we showed that these polyploid cells appeared when diploid cells failed to enter mitosis and subsequently underwent endoreduplication. We then demonstrated that 14-3-3gamma-induced polyploid cells experience significant chromosomal segregation errors during mitosis and observed that some of these cells stably propagate as tetraploids when isolated cells were expanded into stable cultures. These data lead us to conclude that overexpression of the 14-3 3gamma promotes endoreduplication. We further investigated the role of 14-3 3gamma in human NSCLC samples and found that its expression is significantly elevated in polyploid tumors. Collectively, these results suggests that 14-3 3gamma may promote tumorigenesis through the production of a genetically unstable polyploid intermediate. PMID- 29321820 TI - Dysregulation of AKT3 along with a small panel of mRNAs stratifies high-grade serous ovarian cancer from both normal epithelia and benign tumor tissues. AB - Screening methods of High-Grade Serous Ovarian Cancer (HGSOC) lack specificity and sensitivity, partly due to benign tumors producing false-positive findings. We utilized a differential expression analysis pipeline on malignant tumor (MT) and normal epithelial (NE) samples, and also filtered the results to discriminate between MT and benign tumor (BT). We report that a panel of 26 dysregulated genes stratifies MT from both BT and NE. We further validated our findings by utilizing unsupervised clustering methods on two independent datasets. We show that the 26 genes panel completely distinguishes HGSOC from NE, and produces a more accurate classification between HGSOC and BT. Pathway analysis reveals that AKT3 is of particular significance, because of its high fold change and appearance in the majority of the dysregulated pathways. mRNA patterns of AKT3 suggest essential connections with tumor growth and metastasis, as well as a strong biomarker potential when used with 3 other genes (PTTG1, MND1, CENPF). Our results show that dysregulation of the 26-mRNA signature panel provides an evidence of malignancy and contribute to the design of a high specificity biomarker panel for detection of HGSOC, potentially in an early more curable stage. PMID- 29321821 TI - The influence of glyoxalase 1 gene polymorphism on its expression at different stages of breast cancer in Egyptian women. AB - Aim: To assess the association of GLO1 C332C gene polymorphism with breast cancer risk at different stages of the disease and to investigate the effect of this gene polymorphism on its mRNA expression and enzyme activity. Methods: GLO1 C332C gene polymorphism was analyzed by PCR-RFLP in 100 healthy controls and 200 patients with breast cancer (100 patients with stage I & II and 100 patients with stage III & IV). GLO1 mRNA expression was measured by real time PCR. Serum GLO1 enzyme activity was measured colorimetrically. Results: GLO1 A allele was associated with increased risk of breast cancer [OR (95%CI)= 2.8(1.9-4.1), P < 0.001]. Its frequency was significantly higher among advanced stages of breast cancer compared with localized tumors (OR (95%CI)= 1.9(1.3-2.9), p < 0.001). GLO1 mRNA expression and enzyme activity were significantly higher in breast cancer patients compared to controls and they were much higher in the advanced stages of the disease (P < 0.001). Carriers of AA genotype showed higher GLO1 expression and enzyme activity compared with carriers of CC genotype. Conclusion: GLO1 C332C SNP was associated with overexpression of GLO1 mRNA and higher enzyme activity in breast cancer patients suggesting its role in the development of breast cancer and its progression from localized to advanced. PMID- 29321823 TI - Yin and Yang of mesenchymal stem cells and aplastic anemia. AB - Acquired aplastic anemia (AA) is a bone marrow failure syndrome characterized by peripheral cytopenias and bone marrow hypoplasia. It is ultimately fatal without treatment, most commonly from infection or hemorrhage. Current treatments focus on suppressing immune-mediated destruction of bone marrow stem cells or replacing hematopoietic stem cells (HSCs) by transplantation. Our incomplete understanding of the pathogenesis of AA has limited development of targeted treatment options. Mesenchymal stem cells (MSCs) play a vital role in HSC proliferation; they also modulate immune responses and maintain an environment supportive of hematopoiesis. Some of the observed clinical manifestations of AA can be explained by mesenchymal dysfunction. MSC infusions have been shown to be safe and may offer new approaches for the treatment of this disorder. Indeed, infusions of MSCs may help suppress auto-reactive, T-cell mediated HSC destruction and help restore an environment that supports hematopoiesis. Small pilot studies using MSCs as monotherapy or as adjuncts to HSC transplantation have been attempted as treatments for AA. Here we review the current understanding of the pathogenesis of AA and the function of MSCs, and suggest that MSCs should be a target for further research and clinical trials in this disorder. PMID- 29321822 TI - Pursuing meaningful end-points for stem cell therapy assessment in ischemic cardiac disease. AB - Despite optimal interventional and medical therapy, ischemic heart disease is still an important cause of morbidity and mortality worldwide. Although not included in standard of care rehabilitation, stem cell therapy (SCT) could be a solution for prompting cardiac regeneration. Multiple studies have been published from the beginning of SCT until now, but overall no unanimous conclusion could be drawn in part due to the lack of appropriate end-points. In order to appreciate the impact of SCT, multiple markers from different categories should be considered: Structural, biological, functional, physiological, but also major adverse cardiac events or quality of life. Imaging end-points are among the most used - especially left ventricle ejection fraction (LVEF) measured through different methods. Other imaging parameters are infarct size, myocardial viability and perfusion. The impact of SCT on all of the aforementioned end points is controversial and debatable. 2D-echocardiography is widely exploited, but new approaches such as tissue Doppler, strain/strain rate or 3D echocardiography are more accurate, especially since the latter one is comparable with the MRI gold standard estimation of LVEF. Apart from the objective parameters, there are also patient-centered evaluations to reveal the benefits of SCT, such as quality of life and performance status, the most valuable from the patient point of view. Emerging parameters investigating molecular pathways such as non-coding RNAs or inflammation cytokines have a high potential as prognostic factors. Due to the disadvantages of current techniques, new imaging methods with labelled cells tracked along their lifetime seem promising, but until now only pre-clinical trials have been conducted in humans. Overall, SCT is characterized by high heterogeneity not only in preparation, administration and type of cells, but also in quantification of therapy effects. PMID- 29321824 TI - High frequency of CD34+CD38-/low immature leukemia cells is correlated with unfavorable prognosis in acute myeloid leukemia. AB - AIM: To evaluate the importance of the CD34+CD38- cell population when compared to the CD34+CD38+/low and CD34+CD38+/high leukemic cell sub-populations and to determine its correlations with leukemia characteristics and known prognostic factors, as well as with response to therapy and survival. METHODS: Two hundred bone marrow samples were obtained at diagnosis from 200 consecutive patients with newly diagnosed acute myeloid leukemia (AML) were studied between September 2008 and December 2010 at our Institution (Hematology Department, Lyon, France). The CD34/CD38 cell profile was analyzed by multiparameter flowcytometry approach using 8C panels and FACS CANTO and Diva software (BD Bioscience). RESULTS: We analyzed CD34 and CD38 expression in bone marrow samples of 200 AML patients at diagnosis, and investigated the prognostic value of the most immature CD34+CD38- population. Using a cut-off value of 1% of CD34+CD38- from total "bulk leukemic cells" we found that a high (> 1%) level of CD34+CD38- blasts at diagnosis was correlated with advanced age, adverse cytogenetics as well as with a lower rate of complete response after induction and shorter disease-free survival. In a multivariate analysis considering age, leukocytosis, the % of CD34+ blasts cells and the standardized cytogenetic and molecular risk subgroups, a percentage of CD34+CD38- leukemic cells > 1% was an independent predictor of DFS [HR = 2.8 (1.02-7.73), P = 0.04] and OS [HR = 2.65 (1.09-6.43), P = 0.03]. CONCLUSION: Taken together, these results show that a CD34/CD38 "backbone" for leukemic cell analysis by multicolour flowcytometry at diagnosis provides useful prognostic information. PMID- 29321825 TI - Umbilical cord blood stem cell treatment for a patient with psoriatic arthritis. AB - Clinical and laboratory results document psoriatic arthritis in a 56-year old patient. The symptoms did not resolve with standard treatments (nonsteroidal anti inflammatory drugs, steroids and methotrexate). TNF-alpha inhibitors (certolizumab pegol and adalimumab) were added to the treatment regime, with some adverse effects. A trial of human umbilical cord stem cell therapy was then initiated. The stem cells were enriched and concentrated from whole cord blood, by removal of erythrocytes and centrifugation. The patient received several infusions of cord blood stem cells, through intravenous and intra-articular injections. These stem cell treatments correlated with remission of symptoms (joint pain and psoriatic plaques) and normalized serologic results for the inflammatory markers C-reactive protein and erythrocyte sedimentation rate. These improvements were noted within the first thirty days post-treatment, and were sustained for more than one year. The results of this trial suggest that cord blood stem cells may have important therapeutic value for patients with psoriatic arthritis, particularly for those who cannot tolerate standard treatments. PMID- 29321826 TI - The role of automatic defensive responses in the development of posttraumatic stress symptoms in police recruits: protocol of a prospective study. AB - Background: Control over automatic tendencies is often compromised in challenging situations when people fall back on automatic defensive reactions, such as freeze fight-flight responses. Stress-induced lack of control over automatic defensive responses constitutes a problem endemic to high-risk professions, such as the police. Difficulties controlling automatic defensive responses may not only impair split-second decisions under threat, but also increase the risk for and persistence of posttraumatic stress disorder (PTSD) symptoms. However, the significance of these automatic defensive responses in the development and maintenance of trauma-related symptoms remains unclear due to a shortage of large scale prospective studies. Objective: The 'Police-in-Action' study is conducted to investigate the role of automatic defensive responses in the development and maintenance of PTSD symptomatology after trauma exposure. Methods: In this prospective study, 340 police recruits from the Dutch Police Academy are tested before (wave 1; pre-exposure) and after (wave 2; post-exposure) their first emergency aid experiences as police officers. The two waves of data assessment are separated by approximately 15 months. To control for unspecific time effects, a well-matched control group of civilians (n = 85) is also tested twice, approximately 15 months apart, but without being frequently exposed to potentially traumatic events. Main outcomes are associations between (changes in) behavioural, psychophysiological, endocrine and neural markers of automatic defensive responses and development of trauma-related symptoms after trauma exposure in police recruits. Discussion: This prospective study in a large group of primary responders enables us to distinguish predisposing from acquired neurobiological abnormalities in automatic defensive responses, associated with the development of trauma-related symptoms. Identifying neurobiological correlates of (vulnerability for) trauma-related psychopathology may greatly improve screening for individuals at risk for developing PTSD symptomatology and offer valuable targets for (early preventive) interventions for PTSD. PMID- 29321827 TI - High seroprevalence of Rift Valley fever phlebovirus in domestic ruminants and African Buffaloes in Mozambique shows need for intensified surveillance. AB - Introduction: Rift Valley fever (RVF) is an arthropod-borne disease that affects both animals and humans. RVF phlebovirus (RVFPV) is widespread in Africa and Arabian Peninsula. In Mozambique, outbreaks were reported in South; seroprevalence studies performed in livestock and water buffaloes were limited to central and south regions. We evaluated the seroprevalence of RVFPV among domestic ruminants and African buffaloes from 7 of 10 provinces of Mozambique, to understand the distribution of RVFPV and provide data for further RVF control programs. Materials and methods: A total of 1581 blood samples were collected in cattle, 1117 in goats, 85 in sheep and 69 in African buffaloes, between 2013 and 2014, and the obtained sera were analyzed by ELISA. Results and discussion: The overall seroprevalence of RVFPV domestic ruminants and African buffaloes was 25.6%. The highest was observed in cattle (37.3%) and African buffaloes (30.4%), which were higher than in previous studies within Mozambique. In south and central regions, the overall seroprevalences were higher (14.9%-62.4%) than in the north. Conclusion: This study showed the presence of anti-RVFPV antibodies in animals from all sampled provinces, suggesting that RVFPV is actively circulating among domestic ruminants and African buffaloes in Mozambique, therefore surveillance should be intensified. PMID- 29321828 TI - Exendin-4 protects mice from D-galactose-induced hepatic and pancreatic dysfunction. AB - Investigations into pharmaceutical intervention of pancreatic and hepatic dysfunction associated with metabolic disturbances have received relatively little attention. The aim of this study was to investigate the protective effects of exendin-4 in mice receiving D-galactose, a reducing sugar that triggers ROS production and inflammatory mediators affecting the pancreas and liver. Exendin-4 is an United States Food and Drug Administration (FDA) approved glucagon-like peptide that increases insulin dependent glycogen synthesis and glucose uptake. Male NMRI mice (20-25 g), 3 months of age, were randomly divided into 6 groups of 12 mice each: control, exendin-4 (1 nmol/kg), exendin-4 (10 nmol/kg), D galactose, D-galactose + exendin-4 (1 nmol/kg) and D-galactose + exendin-4 (10 nmol/kg). D-galactose (500 mg/kg) was given daily by oral gavage for 6 weeks. During the last 10 days, exendin-4 (1 and 10 nmol/kg) was injected intraperitoneally daily. Glucose, insulin, insulin resistance, lipid profiles, and hepatic enzyme levels significantly increased in the D-galactose group (p < 0.05), along with a significant decrease in superoxide dismutase activity and pancreatic islet insulin secretion (p < 0.05). Exendin-4 decreased D-galactose induced increases in serum glucose and insulin, insulin resistance, lipid profiles, and hepatic enzymes, and improved pancreatic islet insulin secretion and antioxidant defense status. The results show that exendin-4 can prevent complications in mice with compromised pancreatic and hepatic function. Long term administration of D-galactose in mice may be a useful model to study insulin resistance, metabolic syndrome, and aging. PMID- 29321829 TI - DNA Methylation in Stroke. Update of Latest Advances. AB - Epigenetic modifications are hereditable and modifiable factors that do not alter the DNA sequence. These epigenetic factors include DNA methylation, acetylation of histones and non-coding RNAs. Epigenetic factors have mainly been associated with cancer but also with other diseases and conditions such as diabetes or obesity. In addition, epigenetic modifications could play an important role in cardiovascular diseases, including stroke. We review the latest advances in stroke epigenetics, focusing on DNA methylation studies and the future perspectives in this field. PMID- 29321830 TI - Cost-effectiveness of evolocumab in treatment of heterozygous familial hypercholesterolaemia in Bulgaria: measuring health benefit by effectively treated patient-years. AB - Background: An elevated level of low-density lipoprotein cholesterol (LDL-C) constitutes one of the most important modifiable risk factors for cardiovascular disease (CVD). Individuals with heterozygous familial hypercholesterolaemia (HeFH) are particularly vulnerable to CVD events. The addition of evolocumab to statins has shown marked reductions in LDL-C levels. The objective of this analysis is to demonstrate the clinical and economic value of LDL-C lowering with evolocumab from the Bulgarian public health care perspective. Methods: A disease specific measure of health benefit was devised: Effectively treated patient-years (ETPYs) combine length of life with the likelihood of attaining best-practice recommendations on LDL-C lowering. "Effective treatment" was defined as a reduction in LDL-C levels of >=50%. A Markov cohort state-transition model was adapted, considering a life-long treatment duration. Demographics, baseline characteristics and efficacy data were taken from the RUTHERFORD-2 trial. The model uses the relationship between LDL-C lowering and reduced CVD event rates observed in the meta-analyses conducted by the Cholesterol Treatment Trialists' Collaboration. Outcomes and costs (from year 2015) were discounted at an annual rate of 5%. Sensitivity analyses were conducted to assess uncertainty surrounding the results. Results: The total incremental costs of evolocumab added to statins versus statins alone are BGN 120,329 while adding 9.30 ETPYs over lifetime. These results imply an incremental cost per ETPY of BGN 12,937 (US$ 7,215; ? 6,604). The use of evolocumab is associated with a relative reduction in the CVD event rate by 38% (18% per 1 mmol/L). Conclusions: Adding evolocumab to statins may be considered cost-effective in light of an additional expense per patient-year gained in which individuals with HeFH receive effective treatment under the terms of international prevention guidelines. ETPYs are an intuitive and clinically meaningful measure of patient benefit that, in relation to costs, can support health care decision-making that considers quality of care. PMID- 29321831 TI - Changes in smoking prevalence and cessation support, and factors associated with successful smoking cessation in Swedish patients with asthma and COPD. AB - Introduction: Our aim was to investigate changes in smoking prevalence, smoking cessation support and factors associated with successful smoking cessation in patients with asthma and COPD. Methods: Questionnaires about available smoking cessation resources were completed by 54 primary health-care centers and 14 hospitals in central Sweden in 2005 and 2012. Patient data were collected using record reviews and patients questionnaires for two cohorts of randomly selected asthma and COPD patients in 2005 (n = 2306; with a follow up in 2012), and in 2014/2015 (n = 2620). Smoking prevalence, available individual and group smoking cessation support, and factors associated with successful smoking cessation were explored. Results: Smoking prevalence decreased from 11% to 6% (p < 0.0001) in patients with asthma but was almost unchanged in patients with COPD (28 to 26%, p = 0.37). Smoking cessation support increased from 53% to 74% (p = 0.01). A high cardiovascular risk factor level, including diabetes mellitus and hypertension was associated with improved smoking cessation in patients with asthma (OR (95% CI) 3.87 (1.04-14.4), p = 0.04). A higher magnitude success was observed in men with asthma (OR (95% CI) 27.9 (1.73-449), p = 0.02). More highly educated women with asthma had successful greater smoking cessation (4.76 (1.22-18.7), p = 0.04). No significant associations were found in COPD. Conclusions: The smoking prevalence in patients with asthma but not in COPD has almost halved in Sweden during a 7-year period. The availability of smoking cessation support has increased. Suggested factors related to successful smoking cessation are higher level of education in women with asthma and cardiovascular risk factors in men and women with asthma. PMID- 29321832 TI - Access to Liver Transplantation and Patient Survival among Asian Populations: Pre Share 35 vs Post-Share 35. AB - Background: Studies addressing ethnic disparities and trends in liver transplantation for Asian population are scant. Objective: To examine the impact of Share 35 policy on Asian patients' access to liver transplantation and outcomes since its implementation in June 2013. Methods: A total of 11,910 adult white and Asian patients who were registered for deceased donor liver transplantation between 2012 and 2015, was identified from the United Network for Organ Sharing database. Logistic regression and proportional hazard models with adjustment for demographic, clinical and geographic factors were used to model the access to liver transplantation and patient survival. Stratification on pre- and post-Share 35 periods was performed to compare the first 18 months of Share 35 policy to an equivalent period. Results: Comparison of the pre- and post-Share 35 periods showed a significant decrease in time on waiting list and higher proportions of patients receiving liver transplantation for Asian patients. Asians shared similar transplant rates as whites (OR: 1.15, 95% CI: 0.80-1.67) but experienced significantly longer waiting time (HR: 0.56, 95% CI: 0.34-0.92) before they received liver transplantation after Share 35 policy took effect. No significant post-transplantation survival difference was observed between Asians and whites at the 18-month outcome. Conclusion: Although benefited from the Share 35 policy, Asian patients are still at greater risk of disparities in access to liver transplantation. PMID- 29321833 TI - The Learning Curve of Pure Retroperitoneoscopic Donor Nephrectomy. AB - Background: Retroperitoneoscopic donor nephrectomy (RDN) is a well-established modality for the procurement of kidneys for renal transplantation. However the learning curve of pure RDN is not yet defined. Defining the learning curve will help in proper mentorship of the new donor surgeons besides providing safety to the donors. Objective: To define the learning curve of pure RDN. Methods: We analyzed the prospectively collected data of 102 voluntary kidney donors who underwent RDN by a single surgeon between August 2012 and April 2015 at our center. The donors were classified into group A (1-34), group B (35-68), and group C (69-102) according to the chronological order of their surgery. Left RDN was performed in 28 (82%), 25 (74%), and 28 (82%) donors of group A, B, and C, respectively. Right RDN was performed in 6 (18%), 9 (26%), and 6 (18%) donors of group A, B, and C, respectively. The clinical data were analyzed for each group. Results: Statistically significant difference was observed for the mean operative time (p<0.01) and warm ischemia time (p<0.04). The operative time remained around 200 minutes after the initial 35 cases. Conclusion: The learning curve of pure RDN was 35 cases, although the mastery requires more number of cases to be performed. PMID- 29321834 TI - Increased c-myc and miR-33 Expression in Expanded Hematopoietic Stem Cells Cultured on Adipose Stem Cells Feeder Layer. AB - Background: Umbilical cord blood has been used for transplantation in regenerative medicine of hematological disorders. MicroRNAs are important regulators of gene expression that control both physiological and pathological processes such as development and cancer. Some studies have shown that miR-33, p53 and c-myc have critical roles in control of self-renewal cells. Objective: To understand the effect of adipose-derived mesenchymal stem cells (ADSCs), as a feeder layer, on expansion of HSCs, the expression of p53 and miR-33a were evaluated. Methods: Isolated human ADSCs in passage 3 were cultured as a feeder layer. Ex vivo cultures of cord blood CD34+ cells were performed in three culture conditions for 7 days: cytokines with ADSCs feeder layer, cytokines without ADSCs feeder layer, and co-culture with ADSCs without cytokine. Expression of genes p53, c-myc and miR-33 were analyzed by real-time PCR. Results: The expression of p53 was significantly down-regulated in HSCs directly cultured on ADSCs feeder layer compared to that cultured without feeder layer. The expression of miR-33a was significantly up-regulated in HSCs directly cultured on feeder layer compare to that cultured without feeder layer. Conclusion: Defining the role of ADSCs in controlling the HSC self-renewal through miR-33, p53 and c-myc may lead to the treatment and prevention of hematopoietic disorders. PMID- 29321836 TI - Acute Hepatic Allograft Rejection in Pediatric Recipients: Independent Factors. AB - Background: Acute cellular rejection (ACR) has a reversible effect on graft and its survival. Objective: To evaluate the relation between ACR and clinical factors in recipients of liver transplant allografts. Methods: 47 consecutive liver recipients were retrospectively studied. Their data were extracted from records and analyzed. Results: 38 (81%) of the 47 recipients experienced ACR during a 24-month follow-up. The rate of rejection was associated with none of the studied factors-recipient's blood group, sex, age, familial history of disease, drugs and blood products received, type of donor, and Child score and class. Conclusion: During a limited follow-up period, we did not find any association between ACR and suspected risk factors. PMID- 29321835 TI - Osteoblast Differentiation on Collagen Scaffold with Immobilized Alkaline Phosphatase. AB - Background: In tissue engineering, scaffold characteristics play an important role in the biological interactions between cells and the scaffold. Cell adhesion, proliferation, and activation depend on material properties used for the fabrication of scaffolds. Objective: In the present investigation, we used collagen with proper characteristics including mechanically stability, biodegradability and low antigenicity. Optimization of the scaffold was done by immobilization of alkaline phosphatase on the collagen surface via cross-linking method, because this enzyme is one of the most important markers of osteoblast, which increases inorganic phosphate concentration and promote mineralization of bone formation. Methods: Alkaline phosphatase was immobilized on a collagen surface by 1-ethyl-3-(dimethylaminopropyl) carbodiimide hydrochloride, as a reagent. Then, rat mesenchymal stem cells were cultured in osteogenic medium in control and treated groups. The osteogenesis-related genes were compared between treatments (differentiated cells with immobilized alkaline phosphatase/collagen scaffold) and control groups (differentiated cells on collagen surface without alkaline phosphatase) on days 3 and 7 by quantitative real-time PCR (QIAGEN software). Results: Several genes, including alkaline phosphatase, collagen type I and osteocalcine associated with calcium binding and mineralization, showed upregulation in expression during the first 3 days, whereas tumor necrosis factor alpha, acting as an inhibitor of differentiation, was down-regulated during osteogenesis. Conclusion: Collagen scaffold with immobilized alkaline phosphatase can be utilized as a good candidate for enhancing the differentiation of osteoblasts from mesenchymal stem cells. PMID- 29321837 TI - Acute Appendicitis after Liver Transplantation: A Case Report and Review of the Literature. AB - Acute appendicitis is one of the most common etiologies for acute abdomen. However, fewer than 30 cases of acute appendicitis after liver transplantation have so far been reported in the literature. Previous case studies have concluded that acute appendicitis after liver transplantation may present differently than in non-immunosuppressed patients and thus may lead to more complications. Herein, we describe the fourth case of laparoscopic appendectomy in a 40-year-old female presenting with an acute abdomen, 10 years after orthotopic liver transplantation for autoimmune hepatitis. Additionally, we review the literature, and emphasize the importance for laparoscopic, rather than open appendectomy after liver transplantation. Overall, despite the small number of reported cases of appendicitis after orthotopic liver transplantation, we found the incidence and clinical presentation are similar to patients without liver transplantation. The etiologies for appendicitis in patients after liver transplantation may be different than in those not chronically immunosuppressed, with significantly less lymphoid hyperplasia and increased fecalith and cytomegaloviral infections. Preliminary results showed that laparoscopic appendectomy after liver transplantation results in decreased hospital stays and fewer complications. PMID- 29321838 TI - Lung Abscess: An Early Complication of Lung Transplantation in a Patient with Cystic Fibrosis. AB - A 22-year-old woman with cystic fibrosis (CF) developed lung abscess, as a rare complication caused by multidrug-resistant (MDR) Acinetobacter baumannii infection, after lung transplantation (LT). After 6 months of long-term antibiotic therapy, the abscess was successfully eliminated. In reviewed published literature, no previous report was found describing this kind of complication caused by MDR A. baumannii in post-LT patient with CF. In our experience, lung abscess in LT recipients with CF can be successfully treated with prolonged antibiotic therapy. PMID- 29321839 TI - Liver Transplantation in a Myopathic Patient with Glycogen Storage Disease Type IIIa and Decompensated Cirrhosis. AB - Glycogen storage disease (GSD) type IIIa (Forbes-Cori disease) can be associated with severe liver disease. A patient with GSD type IIIa may therefore be a potential candidate for liver transplantation. Progressive myopathy makes uncertain the outcome of the patient and the transplant. Herein, we report on the good results of liver transplantation up to 28 months after the transplantation in a 40-year-old man with liver cirrhosis and significant muscle weakness due to GSD type IIIa. PMID- 29321840 TI - Should We Use an Orphan Graft? PMID- 29321842 TI - Splenic pedicle control during laparoscopic de-capsulation of a giant splenic cyst. AB - Splenic cysts are a rare entity in the Western population and are either true cysts (primary, 25%) or pseudocysts (secondary, 75%) complicating trauma, haemorrhage or infarction. Congenital or simple splenic cysts are the commonest primary cysts and surgery is recommended for cysts larger than 5 cm as these are prone to infection, bleeding or rupture and for symptomatic or complicated cysts. Splenic preservation techniques using the laparoscopic approach are the most prevalent. We present a case of a giant painful simple splenic cyst treated with laparoscopic de-capsulation with application of a new technique for achieving vascular control, whereby control of the splenic pedicle was achieved using a Nylon tape. This approach was safe and well tolerated with a total splenic ischaemia time of 30 min and a successful result. The patient was discharged with no antecedent complications and no recurrence of the cyst at 6 months follow up ultrasound scan. PMID- 29321841 TI - Reversed gender ratio of autism spectrum disorder in Smith-Magenis syndrome. AB - Background: A substantial amount of research shows a higher rate of autistic type of problems in males compared to females. The 4:1 male to female ratio is one of the most consistent findings in autism spectrum disorder (ASD).Lately, the interest in studying ASD in genetic disorders has increased, and research has shown a higher prevalence of ASD in some genetic disorders than in the general population.Smith-Magenis syndrome (SMS) is a rare and complex genetic syndrome caused by an interstitial deletion of chromosome 17p11.2 or a mutation on the retinoic acid induced 1 gene. The disorder is characterised by intellectual disability, multiple congenital anomalies, obesity, neurobehavioural abnormalities and a disrupted circadian sleep-wake pattern. Methods: Parents of 28 persons with SMS between 5 and 50 years old participated in this study. A total of 12 of the persons with SMS were above the age of 18 at the time of the study. A total of 11 came from Sweden and 17 were from Norway.We collected information regarding the number of autism spectrum symptoms using the Social Communication Questionnaire (SCQ) and the Social Responsiveness Scale (SRS). Adaptive behaviour was also measured using the Vineland Adaptive Behavior Scale II. The level of intellectual disability was derived from a review of the medical chart. Results: We found significant gender differences in ASD symptomatology using the SCQ and SRS questionnaires. We found approximately three females per male above the SCQ cutoff. The same differences were not found in the intellectual level and adaptive behaviour or for behavioural and emotional problems.Gender had an independent contribution in a regression model predicting the total SCQ score, and neither the Vineland Adaptive Behavior Scale II nor the Developmental Behaviour Checklist had an independent contribution to the SCQ scores. Conclusion: We found a clear reversed gender difference in ASD symptomatology in persons with SMS. This may be relevant in the search for female protective factors assumed to explain the male bias in ASD. PMID- 29321843 TI - Esophagocoloplasty fistula successfully treated with vacuum-assisted closure. AB - Esophageal fistulas in the cervical region are usually difficult to manage and carry a high morbidity. We report a case of an esophago-colonic fistula after colonic interposition, successfully managed with vacuum-assisted closure 'V.A.C. system', (Kinetic Concepts Inc., San Antonio, TX, USA). The patient initially presented with purulent fluid from the cervical wound 13 days after surgery. Esophagogram confirmed a leak. Since the patient had a history of anastomotic leaks, a surgical intervention was not the treatment of choice. In light of this, conservative treatment with V.A.C. system was initiated. She underwent full recovery. PMID- 29321844 TI - Foreign body reaction with granuloma following Achilles tendon reconstruction with the LARS ligament. AB - Ligament reconstruction with the LARS ligament has been a popular choice owing to its low-complication rates compared with previously commercially available grafts. The non-active nature of the implant also meant that there were no foreign body reactions that had been described with other synthetic grafts. We describe the first reported case of a granulomatous foreign body reaction in a LARS ligament Achilles tendon graft and a technique to reconstruct the tendon following its excision. PMID- 29321845 TI - Failure to define low back pain as a disease or an episode renders research on causality unsuitable: results of a systematic review. AB - Background: Causative factors may be different for the very first onset of symptoms of the 'disease' of low back pain (LBP) than for ensuing episodes that occur after a pain-free period. This differentiation hinges on a life-time absence of low back pain at first onset and short-term absence for further episodes. In this systematic review, we explored whether researchers make these distinctions when investigating the causality of LBP. Methods: A literature search of PUBMED, CINAHL, and SCOPUS databases was performed from January 2010 until September 2016 using the search terms 'low back pain' or 'back pain' and 'risk factor' or 'caus*' or 'predict*' or 'onset' or 'first-time' or 'inception' or 'incidence'. Two reviewers extracted information on study design, types of episodes of back pain to distinguish the disease of LBP and recurring episodes, and also to determine the definitions of disease- or pain-free periods. Results: Thirty-three articles purporting to study causes of LBP were included. Upon scrutiny, 31 of the 33 articles were unclear as to what type of causality they were studying, that of the 'disease' or the episode, or a mere association with LBP. Only 9 studies used a prospective study design. Five studies appeared to investigate the onset of the disease of LBP, however, only one study truly captured the first incidence of LBP, which was the result of sports injury. Six appeared to study episodes but only one clearly related to the concept of episodes. Therefore, among those 11 studies, nine included both first-time LBP and episodes of LBP. Consequently, 22 studies related to the prevalence of LBP, as they probably included a mixture of first-time, recurring and ongoing episodes without distinction. Conclusion: Recent literature concerning the causality of LBP does not differentiate between the 'disease' of LBP and its recurring episodes mainly due to a lack of a clear definition of absence of LBP at baseline. Therefore, current research is not capable of providing a valid answer on this topic. PMID- 29321846 TI - Weak whole-plant trait coordination in a seasonally dry South American stressful environment. AB - A core question involving both plant physiology and community ecology is whether traits from different organs are coordinated across species, beyond pairwise trait correlations. The strength of within-community trait coordination has been hypothesized to increase along gradients of environmental harshness, due to the cost of adopting ecological strategies out of the viable niche space supported by the abiotic conditions. We evaluated the strength of trait relationship and coordination in a stressful environment using 21 leaf and stem traits of 21 deciduous and evergreen woody species from a heath vegetation growing on coastal sandy plain in northeastern South America. The study region faces marked dry season, high soil salinity and acidity, and poor nutritional conditions. Results from multiple factor analyses supported two weak and independent axes of trait coordination, which accounted for 25%-29% of the trait variance using phylogenetically independent contrasts. Trait correlations on the multiple factor analyses main axis fit well with the global plant economic spectrum, with species investing in small leaves and dense stems as opposed to species with softer stems and large leaves. The species' positions on the main functional axis corresponded to the competitor-stress-tolerant side of Grime's CSR triangle of plant strategies. The weak degree of trait coordination displayed by the heath vegetation species contradicted our expectation of high trait coordination in stressful environmental habitats. The distinct biogeographic origins of the species occurring in the study region and the prevalence of a regional environmental filter coupled with local homogeneous conditions could account for prevalence of trait independence we observed. PMID- 29321847 TI - Search and foraging behaviors from movement data: A comparison of methods. AB - Search behavior is often used as a proxy for foraging effort within studies of animal movement, despite it being only one part of the foraging process, which also includes prey capture. While methods for validating prey capture exist, many studies rely solely on behavioral annotation of animal movement data to identify search and infer prey capture attempts. However, the degree to which search correlates with prey capture is largely untested. This study applied seven behavioral annotation methods to identify search behavior from GPS tracks of northern gannets (Morus bassanus), and compared outputs to the occurrence of dives recorded by simultaneously deployed time-depth recorders. We tested how behavioral annotation methods vary in their ability to identify search behavior leading to dive events. There was considerable variation in the number of dives occurring within search areas across methods. Hidden Markov models proved to be the most successful, with 81% of all dives occurring within areas identified as search. k-Means clustering and first passage time had the highest rates of dives occurring outside identified search behavior. First passage time and hidden Markov models had the lowest rates of false positives, identifying fewer search areas with no dives. All behavioral annotation methods had advantages and drawbacks in terms of the complexity of analysis and ability to reflect prey capture events while minimizing the number of false positives and false negatives. We used these results, with consideration of analytical difficulty, to provide advice on the most appropriate methods for use where prey capture behavior is not available. This study highlights a need to critically assess and carefully choose a behavioral annotation method suitable for the research question being addressed, or resulting species management frameworks established. PMID- 29321848 TI - Divergent habitat use of two urban lizard species. AB - Faunal responses to anthropogenic habitat modification represent an important aspect of global change. In Puerto Rico, two species of arboreal lizard, Anolis cristatellus and A. stratulus, are commonly encountered in urban areas, yet seem to use the urban habitat in different ways. In this study, we quantified differences in habitat use between these two species in an urban setting. For each species, we measured habitat use and preference, and the niche space of each taxon, with respect to manmade features of the urban environment. To measure niche space of these species in an urban environment, we collected data from a total of six urban sites across four different municipalities on the island of Puerto Rico. We quantified relative abundance of both species, their habitat use, and the available habitat in the environment to measure both microhabitat preference in an urban setting, as well as niche partitioning between the two different lizards. Overall, we found that the two species utilize different portions of the urban habitat. Anolis stratulus tends to use more "natural" portions of the urban environment (i.e., trees and other cultivated vegetation), whereas A. cristatellus more frequently uses anthropogenic structures. We also found that aspects of habitat discrimination in urban areas mirror a pattern measured in prior studies for forested sites in which A. stratulus was found to perch higher than A. cristatellus and preferred lower temperatures and greater canopy cover. In our study, we found that the multivariate niche space occupied by A. stratulus did not differ from the available niche space in natural portions of the urban environment and in turn represented a subset of the niche space occupied by A. cristatellus. The unique niche space occupied by A. cristatellus corresponds to manmade aspects of the urban environment generally not utilized by A. stratulus. Our results demonstrate that some species are merely tolerant of urbanization while others utilize urban habitats in novel ways. This finding has implications for long-term persistence in urban habitats and suggests that loss of natural habitat elements may lead to nonrandom species extirpations as urbanization intensifies. PMID- 29321850 TI - Bird species richness is associated with phylogenetic relatedness, plant species richness, and altitudinal range in Inner Mongolia. AB - Bird species richness is mediated by local, regional, and historical factors, for example, competition, environmental heterogeneity, contemporary, and historical climate. Here, we related bird species richness with phylogenetic relatedness of bird assemblages, plant species richness, topography, contemporary climate, and glacial-interglacial climate change to investigate the relative importance of these factors. This study was conducted in Inner Mongolia, an arid and semiarid region with diverse vegetation types and strong species richness gradients. The following associated variables were included as follows: phylogenetic relatedness of bird assemblages (Net Relatedness Index, NRI), plant species richness, altitudinal range, contemporary climate (mean annual temperature and precipitation, MAT and MAP), and contemporary-Last Glacial Maximum (LGM) change in climate (change in MAT and change in MAP). Ordinary least squares linear, simultaneous autoregressive linear, and Random Forest models were used to assess the associations between these variables and bird species richness across this region. We found that bird species richness was correlated negatively with NRI and positively with plant species richness and altitudinal range, with no significant correlations with contemporary climate and glacial-interglacial climate change. The six best combinations of variables ranked by Random Forest models consistently included NRI, plant species richness, and contemporary-LGM change in MAT. Our results suggest important roles of local ecological factors in shaping the distribution of bird species richness across this semiarid region. Our findings highlight the potential importance of these local ecological factors, for example, environmental heterogeneity, habitat filtering, and biotic interactions, in biodiversity maintenance. PMID- 29321849 TI - Population genomics and geographical parthenogenesis in Japanese harvestmen (Opiliones, Sclerosomatidae, Leiobunum). AB - Naturally occurring population variation in reproductive mode presents an opportunity for researchers to test hypotheses regarding the evolution of sex. Asexual reproduction frequently assumes a geographical pattern, in which parthenogenesis-dominated populations are more broadly dispersed than their sexual conspecifics. We evaluate the geographical distribution of genomic signatures associated with parthenogenesis using nuclear and mitochondrial DNA sequence data from two Japanese harvestman sister taxa, Leiobunum manubriatum and Leiobunum globosum. Asexual reproduction is putatively facultative in these species, and female-biased localities are common in habitat margins. Past karyotypic and current cytometric work indicates L. globosum is entirely tetraploid, while L. manubriatum may be either diploid or tetraploid. We estimated species phylogeny, genetic differentiation, diversity, and mitonuclear discordance in females collected across the species range in order to identify range expansion toward marginal habitat, potential for hybrid origin, and persistence of asexual lineages. Our results point to northward expansion of a tetraploid ancestor of L. manubriatum and L. globosum, coupled with support for greater male gene flow in southern L. manubriatum localities. Specimens from localities in the Tohoku and Hokkaido regions were indistinct, particularly those of L. globosum, potentially due to little mitochondrial differentiation or haplotypic variation. Although L. manubriatum overlaps with L. globosum across its entire range, L. globosum was reconstructed as monophyletic with strong support using mtDNA, and marginal support with nuclear loci. Ultimately, we find evidence for continued sexual reproduction in both species and describe opportunities to clarify the rate and mechanism of parthenogenesis. PMID- 29321851 TI - Specificity of herbivore-induced responses in an invasive species, Alternanthera philoxeroides (alligator weed). AB - Herbivory-induced responses in plants can both negatively affect subsequently colonizing herbivores and mitigate the effect of herbivory on the host. However, it is still less known whether plants exhibit specific responses to specialist and generalist herbivores in non-secondary metabolite traits and how specificity to specialists and generalists differs between invasive and native plant populations. We exposed an invasive plant, Alternanthera philoxeroides, to Agasicles hygrophila (Coleoptera, Chrysomelidae; specialist), Spodoptera litura (Lepidoptera, Noctuidae; generalist), manual clipping, or application of exogenous jasmonic acid and examined both the specificity of elicitation in traits of fitness (e.g., aboveground biomass), morphology (e.g., root:shoot ratio), and chemistry (e.g., C/N ratio and lignin), and specificity of effect on the subsequent performance of A. hygrophila and S. litura. Then, we assessed variation of the specificity between invasive and native populations (USA and Argentina, respectively). The results showed S. litura induced higher branching intensity and specific leaf area but lower C/N ratio than A. hygrophila, whereas A. hygrophila induced higher trichome density than S. litura. The negative effect of induction on subsequent larval growth was greater for S. litura than for A. hygrophila. Invasive populations had a weaker response to S. litura than to A. hygrophila in triterpenoid saponins and C/N ratio, while native populations responded similarly to these two herbivores. The specific effect on the two herbivores feeding on induced plants did not vary between invasive and native populations. Overall, we demonstrate specificity of elicitation to specialist and generalist herbivores in non-secondary metabolite traits, and that the generalist is more susceptible to induction than the specialist. Furthermore, chemical responses specific to specialist and generalist herbivores only exist in the invasive populations, consistent with an evolutionary change in specificity in the invasive populations. PMID- 29321852 TI - Ignorance can be evolutionarily beneficial. AB - Information is increasingly being viewed as a resource used by organisms to increase their fitness. Indeed, it has been formally shown that there is a sensible way to assign a reproductive value to information and it is non negative. However, all of this work assumed that information collection is cost free. Here, we account for such a cost and provide conditions for when the reproductive value of information will be negative. In these instances, counterintuitively, it is in the interest of the organism to remain ignorant. We link our results to empirical studies where Bayesian behavior appears to break down in complex environments and provide an alternative explanation of lowered arousal thresholds in the evolution of sleep. PMID- 29321853 TI - Tracking plant preference for higher-quality mycorrhizal symbionts under varying CO2 conditions over multiple generations. AB - The symbiosis between plants and root-colonizing arbuscular mycorrhizal (AM) fungi is one of the most ecologically important examples of interspecific cooperation in the world. AM fungi provide benefits to plants; in return plants allocate carbon resources to fungi, preferentially allocating more resources to higher-quality fungi. However, preferential allocations from plants to symbionts may vary with environmental context, particularly when resource availability affects the relative value of symbiotic services. We ask how differences in atmospheric CO 2-levels influence root colonization dynamics between AMF species that differ in their quality as symbiotic partners. We find that with increasing CO 2-conditions and over multiple plant generations, the more beneficial fungal species is able to achieve a relatively higher abundance. This suggests that increasing atmospheric carbon supply enables plants to more effectively allocate carbon to higher-quality mutualists, and over time helps reduce lower-quality AM abundance. Our results illustrate how environmental context may affect the extent to which organisms structure interactions with their mutualistic partners and have potential implications for mutualism stability and persistence under global change. PMID- 29321854 TI - Phylogenetic relationships and phylogeography of relevant lineages within the complex Campanulaceae family in Macaronesia. AB - Macaronesia has long been recognized as a natural model for studying evolutionary processes in plant diversification. Several studies have attempted to focus on single lineages, and few have covered the diversification of a family across all the archipelagos. We used a comprehensive sample to clarify the phylogenetic relationships and the biogeographic history of the Macaronesian Campanulaceae. Hypotheses related to the colonization of these archipelagos will be used to examine the diversification patterns of different lineages. We sequenced the ITS region and six cpDNA markers (atpB, matK, petD, rbcL, trnL-F, and psbA-trnH) from 10 Campanulaceae species, including seven endemic species in Macaronesia. The phylogeny of these taxa was reconstructed using maximum parsimony, maximum likelihood, and Bayesian inference. To study the relationships within each lineage, haplotype networks were calculated using NeighborNet and TCS algorithms. Moreover, data were combined with fossil information to construct time-calibrated trees for the Macaronesian Campanulaceae species. The phylogenetic analyses are largely congruent with current taxon circumscriptions, and all the endemic genera formed monophyletic clades, namely Azorina in Azores; Musschia in Madeira; and Campanula in Cape Verde. The Azorina clade and the Cape Verde endemic Campanula may share a common ancestor in North Africa, and the divergence was dated ca. 12.3 million years ago (Mya). The divergence of the Musschia clade began in the Pliocene ca. 3.4 Mya. Moreover, several examples of intraspecific variation were revealed among the native species with a clear geographic structured patterns, suggesting that cryptic diversity might exist within the native Macaronesian Campanulaceae when compared to the close mainland taxa (e.g., Campanula erinus, Trachelium caeruleum), but additional studies are needed to support the molecular data. This study highlights the power of combining data (e.g., phylogeny and divergence times, with species distribution data) for testing diversification hypotheses within the unique Macaronesian flora, providing useful information for future conservation efforts. PMID- 29321855 TI - Hunting-mediated predator facilitation and superadditive mortality in a European ungulate. AB - Predator-prey theory predicts that in the presence of multiple types of predators using a common prey, predator facilitation may result as a consequence of contrasting prey defense mechanisms, where reducing the risk from one predator increases the risk from the other. While predator facilitation is well established in natural predator-prey systems, little attention has been paid to situations where human hunters compete with natural predators for the same prey. Here, we investigate hunting-mediated predator facilitation in a hunter-predator prey system. We found that hunter avoidance by roe deer (Capreolus capreolus) exposed them to increase predation risk by Eurasian lynx (Lynx lynx). Lynx responded by increasing their activity and predation on deer, providing evidence that superadditive hunting mortality may be occurring through predator facilitation. Our results reveal a new pathway through which human hunters, in their role as top predators, may affect species interactions at lower trophic levels and thus drive ecosystem processes. PMID- 29321856 TI - Temporal effects of disturbance on community composition in simulated stage structured plant communities. AB - In an era of global environmental change, understanding how disturbance affects the dynamics of ecological communities is crucial. However, few studies have theoretically explored the potential influence of disturbance including both intensity and frequency on compositional change over time in communities with stage structure. A spatially explicit, individual-based model was constructed incorporating the various demographic responses to disturbance of plants at two different growth stages: seedlings and adults. In the model, we assumed that individuals within each stage were demographically equivalent (neutral) but differed between stages. We simulated a common phenomenon that seedlings suffered more from disturbance such as grazing and fire than adults. We showed how stage structured communities of seedlings and adults responded to disturbance with various levels of disturbance frequency and intensity. In "undisturbed" simulations, the relationship between average species abundance (defined here as the total number of individuals divided by species richness) and community composition turnover (measured by the Bray-Curtis similarity index) was asymptotic. However, in strongly "disturbed" simulations with the between disturbance intervals greater than one, this relationship became unimodal. Stage dependent response to disturbance underlay the above discrepancy between undisturbed and disturbed communities. PMID- 29321857 TI - A holistic approach to determine tree structural complexity based on laser scanning data and fractal analysis. AB - The three-dimensional forest structure affects many ecosystem functions and services provided by forests. As forests are made of trees it seems reasonable to approach their structure by investigating individual tree structure. Based on three-dimensional point clouds from laser scanning, a newly developed holistic approach is presented that enables to calculate the box dimension as a measure of structural complexity of individual trees using fractal analysis. It was found that the box dimension of trees was significantly different among the tested species, among trees belonging to the same species but exposed to different growing conditions (at gap vs. forest interior) or to different kinds of competition (intraspecific vs. interspecific). Furthermore, it was shown that the box dimension is positively related to the trees' growth rate. The box dimension was identified as an easy to calculate measure that integrates the effect of several external drivers of tree structure, such as competition strength and type, while simultaneously providing information on structure-related properties, like tree growth. PMID- 29321858 TI - How do steppe plants follow their optimal environmental conditions or persist under suboptimal conditions? The differing strategies of annuals and perennials. AB - For a species to be able to respond to environmental change, it must either succeed in following its optimal environmental conditions or in persisting under suboptimal conditions, but we know very little about what controls these capacities. We parameterized species distribution models (SDMs) for 135 plant species from the Algerian steppes. We interpreted low false-positive rates as reflecting a high capacity to follow optimal environmental conditions and high false-negative rates as a high capacity to persist under suboptimal environmental conditions. We also measured functional traits in the field and built a unique plant trait database for the North-African steppe. For both perennial and annual species, we explored how these two capacities can be explained by species traits and whether relevant trait values reflect species strategies or biases in SDMs. We found low false-positive rates in species with small seeds, flowers attracting specialist pollinators, and specialized distributions (among annuals and perennials), low root:shoot ratios, wide root-systems, and large leaves (perennials only) (R2 = .52-58). We found high false-negative rates in species with marginal environmental distribution (among annuals and perennials), small seeds, relatively deep roots, and specialized distributions (annuals) or large leaves, wide root-systems, and monocarpic life cycle (perennials) (R2 = .38 for annuals and 0.65 for perennials). Overall, relevant traits are rarely indicative of the possible biases of SDMs, but rather reflect the species' reproductive strategy, dispersal ability, stress tolerance, and pollination strategies. Our results suggest that wide undirected dispersal in annual species and efficient resource acquisition in perennial species favor both capacities, whereas short life spans in perennial species favor persistence in suboptimal environmental conditions and flowers attracting specialist pollinators in perennial and annual species favor following optimal environmental conditions. Species that neither follow nor persist will be at risk under future environmental change. PMID- 29321859 TI - Habitat-related seed germination traits in alpine habitats. AB - Understanding the key aspects of plant regeneration from seeds is crucial in assessing species assembly to their habitats. However, the regenerative traits of seed dormancy and germination are underrepresented in this context. In the alpine zone, the large species and microhabitat diversity provide an ideal context to assess habitat-related regenerative strategies. To this end, seeds of 53 species growing in alpine siliceous and calcareous habitats (6230 and 6170 of EU Directive 92/43, respectively) were exposed to different temperature treatments under controlled laboratory conditions. Germination strategies in each habitat were identified by clustering with k-means. Then, phylogenetic least squares correlations (PGLS) were fitted to assess germination and dormancy differences between species' main habitat (calcareous and siliceous), microhabitat (grasslands, heaths, rocky, and species with no specific microhabitats), and chorology (arctic-alpine and continental). Calcareous and siliceous grasslands significantly differ in their germination behaviour with a slow, mostly overwinter germination and high germination under all conditions, respectively. Species with high overwinter germination occurs mostly in heaths and have an arctic-alpine distribution. Meanwhile, species with low or high germinability in general inhabit in grasslands or have no specific microhabitat (they belong to generalist), respectively. Alpine species use different germination strategies depending on habitat provenance, species' main microhabitat, and chorotype. Such differences may reflect adaptations to local environmental conditions and highlight the functional role of germination and dormancy in community ecology. PMID- 29321860 TI - Incorporating variability in simulations of seasonally forced phenology using integral projection models. AB - Phenology models are becoming increasingly important tools to accurately predict how climate change will impact the life histories of organisms. We propose a class of integral projection phenology models derived from stochastic individual based models of insect development and demography. Our derivation, which is based on the rate summation concept, produces integral projection models that capture the effect of phenotypic rate variability on insect phenology, but which are typically more computationally frugal than equivalent individual-based phenology models. We demonstrate our approach using a temperature-dependent model of the demography of the mountain pine beetle (Dendroctonus ponderosae Hopkins), an insect that kills mature pine trees. This work illustrates how a wide range of stochastic phenology models can be reformulated as integral projection models. Due to their computational efficiency, these integral projection models are suitable for deployment in large-scale simulations, such as studies of altered pest distributions under climate change. PMID- 29321861 TI - Low interannual precipitation has a greater negative effect than seedling herbivory on the population dynamics of a short-lived shrub, Schiedea obovata. AB - Climate projections forecast more extreme interannual climate variability over time, with an increase in the severity and duration of extreme drought and rainfall events. Based on bioclimatic envelope models, it is projected that changing precipitation patterns will drastically alter the spatial distributions and density of plants and be a primary driver of biodiversity loss. However, many other underlying mechanisms can impact plant vital rates (i.e., survival, growth, and reproduction) and population dynamics. In this study, we developed a size dependent integral projection model (IPM) to evaluate how interannual precipitation and mollusk herbivory influence the dynamics of a Hawaii endemic short-lived shrub, Schiedea obovata (Caryophyllaceae). Assessing how wet season precipitation effects population dynamics it critical, as it is the timeframe when most of the foliar growth occurs, plants flower and fruit, and seedlings establish. Temporal variation in wet season precipitation had a greater effect than mollusk herbivory on S. obovata population growth rate lambda, and the impact of interannual precipitation on vital rates shifted across plant ontogeny. Furthermore, wet season precipitation influenced multiple vital rates in contrasting ways and the effect of precipitation on the survival of larger vegetative and reproductively mature individuals contributed the most to variation in the population growth rate. Among all combination of wet season precipitation and herbivory intensities, the only scenario that led to a growing population was when high wet precipitation was associated with low herbivory. Our study highlights the importance of evaluating how abiotic factors and plant consumer interactions influence an organism across its life cycle to fully understand the underpinning mechanisms that structure its spatial and temporal distribution and abundance. Our results also illustrate that for short-lived species, like S. obovata, seedling herbivory can have less of an effect on the dynamics of plant populations than decreased interannual precipitation. PMID- 29321862 TI - Assessing the utility of metabarcoding for diet analyses of the omnivorous wild pig (Sus scrofa). AB - Wild pigs (Sus scrofa) are an invasive species descended from both domestic swine and Eurasian wild boar that was introduced to North America during the early 1500s. Wild pigs have since become the most abundant free-ranging exotic ungulate in the United States. Large and ever-increasing populations of wild pigs negatively impact agriculture, sport hunting, and native ecosystems with costs estimated to exceed $1.5 billion/year within the United States. Wild pigs are recognized as generalist feeders, able to exploit a broad array of locally available food resources, yet their feeding behaviors remain poorly understood as partially digested material is often unidentifiable through traditional stomach content analyses. To overcome the limitation of stomach content analyses, we developed a DNA sequencing-based protocol to describe the plant and animal diet composition of wild pigs. Additionally, we developed and evaluated blocking primers to reduce the amplification and sequencing of host DNA, thus providing greater returns of sequences from diet items. We demonstrate that the use of blocking primers produces significantly more sequencing reads per sample from diet items, which increases the robustness of ascertaining animal diet composition with molecular tools. Further, we show that the overall plant and animal diet composition is significantly different between the three areas sampled, demonstrating this approach is suitable for describing differences in diet composition among the locations. PMID- 29321863 TI - Impact of moderate and extreme climate change scenarios on growth, morphological features, photosynthesis, and fruit production of hot pepper. AB - Horticultural crop production and changes in physiological aspects during the growing season may be affected by climate change factors (CC), which include increased temperature and the associated doubling or tripling of atmospheric CO2 concentrations. However, the potential effects are complex and many parameters might impact on the observed effects. To evaluate the effects of CC, the growth, yield, fruit characteristics, photosynthetic traits, and morphological characteristics of hot peppers were investigated. The hot peppers were grown under two CC scenarios, with the Representative Concentration Pathway (RCP) of 4.5 (Temp.; +3.4 degrees C, CO2 conc.; 540 MUmol/mol, Precipitation +17.3%) and RCP 8.5 (Temp.; +6.0 degrees C and CO2 conc.; 940 MUmol/mol, Precipitation +20.3%), respectively, using extreme weather simulators. This was compared with existing weather conditions occurring in Jeonju, South Korea in terms of air temperature, relative humidity, radiation, and precipitation. Overall, the plant height showed the highest under moderate CC conditions (RCP 4.5) among all the treatments tested. The number of leaves in the RCP 8.5 condition showed 7,739/plants, which was 2.2 times higher than that of the control. In addition, fruit shape was shortened and percentage dry matter was also the highest. The yield of hot pepper in the CC RCP 4.5 and 8.5 conditions were decreased by 21.5% and 89.2% when compared with that of the control, respectively. The days to harvest in the condition of CC scenarios were shortened from 5 to 13 compared with that of control, predominantly due to the increased air temperature. The results indicated that the severe RCP CC scenarios made reduction in the yields and negative affection on the fruit qualities. Overall, hot pepper was tolerant of mild CC scenarios of temperature * CO2 but was significantly affected by more extreme CC interacting parameter concentrations (or similar). PMID- 29321864 TI - The evolution of sexes: A specific test of the disruptive selection theory. AB - The disruptive selection theory of the evolution of anisogamy posits that the evolution of a larger body or greater organismal complexity selects for a larger zygote, which in turn selects for larger gametes. This may provide the opportunity for one mating type to produce more numerous, small gametes, forcing the other mating type to produce fewer, large gametes. Predictions common to this and related theories have been partially upheld. Here, a prediction specific to the disruptive selection theory is derived from a previously published game theoretic model that represents the most complete description of the theory. The prediction, that the ratio of macrogamete to microgamete size should be above three for anisogamous species, is supported for the volvocine algae. A fully population genetic implementation of the model, involving mutation, genetic drift, and selection, is used to verify the game-theoretic approach and accurately simulates the evolution of gamete sizes in anisogamous species. This model was extended to include a locus for gamete motility and shows that oogamy should evolve whenever there is costly motility. The classic twofold cost of sex may be derived from the fitness functions of these models, showing that this cost is ultimately due to genetic conflict. PMID- 29321865 TI - Responses of soil respiration to soil management changes in an agropastoral ecotone in Inner Mongolia, China. AB - Studying the responses of soil respiration (Rs) to soil management changes is critical for enhancing our understanding of the global carbon cycle and has practical implications for grassland management. Therefore, the objectives of this study were (1) quantify daily and seasonal patterns of Rs, (2) evaluate the influence of abiotic factors on Rs, and (3) detect the effects of soil management changes on Rs. We hypothesized that (1) most of daily and seasonal variation in Rs could be explained by soil temperature (Ts) and soil water content (Sw), (2) soil management changes could significantly affect Rs, and (3) soil management changes affected Rs via the significant change in abiotic and biotic factors. In situ Rs values were monitored in an agropastoral ecotone in Inner Mongolia, China, during the growing seasons in 2009 (August to October) and 2010 (May to October). The soil management changes sequences included free grazing grassland (FG), cropland (CL), grazing enclosure grassland (GE), and abandoned cultivated grassland (AC). During the growing season in 2010, cumulative Rs for FG, CL, GE, and AC averaged 265.97, 344.74, 236.70, and 226.42 gC m-2 year-1, respectively. The Ts and Sw significantly influenced Rs and explained 66%-86% of the variability in daily Rs. Monthly mean temperature and precipitation explained 78% 96% of the variability in monthly Rs. The results clearly showed that Rs was increased by 29% with the conversion of FG to CL and decreased by 35% and 11% with the conversion of CL to AC and FG to GE. The factors impacting the change in Rs under different soil management changes sequences varied. Our results confirm the tested hypotheses. The increase in Q10 and litter biomass induced by conversion of FG to GE could lead to increased Rs if the climate warming. We suggest that after proper natural restoration period, grasslands should be utilized properly to decrease Rs. PMID- 29321866 TI - Grazing weakens temporal stabilizing effects of diversity in the Eurasian steppe. AB - Many biodiversity experiments have demonstrated that plant diversity can stabilize productivity in experimental grasslands. However, less is known about how diversity-stability relationships are mediated by grazing. Grazing is known for causing species losses, but its effects on plant functional groups (PFGs) composition and species asynchrony, which are closely correlated with ecosystem stability, remain unclear. We conducted a six-year grazing experiment in a semi arid steppe, using seven levels of grazing intensity (0, 1.5, 3.0, 4.5, 6.0, 7.5, and 9.0 sheep per hectare) and two grazing systems (i.e., a traditional, continuous grazing system during the growing period (TGS), and a mixed one rotating grazing and mowing annually (MGS)), to examine the effects of grazing system and grazing intensity on the abundance and composition of PFGs and diversity-stability relationships. Ecosystem stability was similar between mixed and continuous grazing treatments. However, within the two grazing systems, stability was maintained through different pathways, that is, along with grazing intensity, persistence biomass variations in MGS, and compensatory interactions of PFGs in their biomass variations in TGS. Ecosystem temporal stability was not decreased by species loss but rather remain unchanged by the strong compensatory effects between PFGs, or a higher grazing-induced decrease in species asynchrony at higher diversity, and a higher grazing-induced increase in the temporal variation of productivity in diverse communities. Ecosystem stability of aboveground net primary production was not related to species richness in both grazing systems. High grazing intensity weakened the temporal stabilizing effects of diversity in this semi-arid grassland. Our results demonstrate that the productivity of dominant PFGs is more important than species richness for maximizing stability in this system. This study distinguishes grazing intensity and grazing system from diversity effects on the temporal stability, highlighting the need to better understand how grazing regulates ecosystem stability, plant diversity, and their synergic relationships. PMID- 29321867 TI - High site fidelity and restricted ranging patterns in southern Australian bottlenose dolphins. AB - Information on site fidelity and ranging patterns of wild animals is critical to understand how they use their environment and guide conservation and management strategies. Delphinids show a wide variety of site fidelity and ranging patterns. Between September 2013 and October 2015, we used boat-based surveys, photographic identification, biopsy sampling, clustering analysis, and geographic information systems to determine the site-fidelity patterns and representative ranges of southern Australian bottlenose dolphins (Tursiops cf. australis) inhabiting the inner area of Coffin Bay, a highly productive inverse estuary located within Thorny Passage Marine Park, South Australia. Agglomerative hierarchical clustering (AHC) of individuals' site-fidelity index and sighting rates indicated that the majority of dolphins within the inner area of Coffin Bay are "regular residents" (n = 125), followed by "occasional residents" (n = 28), and "occasional visitors" (n = 26). The low standard distance deviation indicated that resident dolphins remained close to their main center of use (range = 0.7 4.7 km, X +/- SD = 2.3 +/- 0.9 km). Representative ranges of resident dolphins were small (range = 3.9-33.5 km2, X +/- SD = 15.2 +/- 6.8 km2), with no significant differences between males and females (Kruskal-Wallis, chi2 = 0.426, p = .808). The representative range of 56% of the resident dolphins was restricted to a particular bay within the study area. The strong site fidelity and restricted ranging patterns among individuals could be linked to the high population density of this species in the inner area of Coffin Bay, coupled with differences in social structure and feeding habits. Our results emphasize the importance of productive habitats as a major factor driving site fidelity and restricted movement patterns in highly mobile marine mammals and the high conservation value of the inner area of Coffin Bay for southern Australian bottlenose dolphins. PMID- 29321868 TI - Global mtDNA genetic structure and hypothesized invasion history of a major pest of citrus, Diaphorina citri (Hemiptera: Liviidae). AB - The Asian citrus psyllid Diaphorina citri Kuwayama is a key pest of citrus as the vector of the bacterium causing the "huanglongbing" disease (HLB). To assess the global mtDNA population genetic structure, and possible dispersal history of the pest, we investigated genetic variation at the COI gene collating newly collected samples with all previously published data. Our dataset consists of 356 colonies from 106 geographic sites worldwide. High haplotype diversity (H-mean = 0.702 +/- 0.017), low nucleotide diversity (pi-mean = 0.003), and significant positive selection (Ka/Ks = 32.92) were observed. Forty-four haplotypes (Hap) were identified, clustered into two matrilines: Both occur in southeastern and southern Asia, North and South America, and Africa; lineages A and B also occur in eastern and western Asia, respectively. The most abundant haplotypes were Hap4 in lineage A (35.67%), and Hap9 in lineage B (41.29%). The haplotype network identified them as the ancestral haplotypes within their respective lineages. Analysis of molecular variance showed significant genetic structure (FST = 0.62, p < .0001) between the lineages, and population genetic analysis suggests geographic structuring. We hypothesize a southern and/or southeastern Asia origin, three dispersal routes, and parallel expansions of two lineages. The hypothesized first route involved the expansion of lineage B from southern Asia into North America via West Asia. The second, the expansion of some lineage A individuals from Southeast Asia into East Asia, and the third involved both lineages from Southeast Asia spreading westward into Africa and subsequently into South America. To test these hypotheses and gain a deeper understanding of the global history of D. citri, more data-rich approaches will be necessary from the ample toolkit of next-generation sequencing (NGS). However, this study may serve to guide such sampling and in the development of biological control programs against the global pest D. citri. PMID- 29321869 TI - Imitating the cost of males: A hypothesis for coexistence of all-female sperm dependent species and their sexual host. AB - All-female sperm-dependent species are particular asexual organisms that must coexist with a closely related sexual host for reproduction. However, demographic advantages of asexual over sexual species that have to produce male individuals could lead both to extinction. The unresolved question of their coexistence still challenges and fascinates evolutionary biologists. As an alternative hypothesis, we propose those asexual organisms are afflicted by a demographic cost analogous to the production of males to prevent exclusion of the host. Previously proposed hypotheses stated that asexual individuals relied on a lower fecundity than sexual females to cope with demographic advantage. In contrast, we propose that both sexual and asexual species display the same number of offspring, but half of asexual individuals imitate the cost of sex by occupying ecological niches but producing no offspring. Simulations of population growth in closed systems under different demographic scenarios revealed that only the presence of nonreproductive individuals in asexual females can result in long-term coexistence. This hypothesis is supported by the fact that half of the females in some sperm-dependent organisms did not reproduce clonally. PMID- 29321871 TI - Leaf trait variations associated with habitat affinity of tropical karst tree species. AB - Karst hills, that is, jagged topography created by dissolution of limestone and other soluble rocks, are distributed extensively in tropical forest regions, including southern parts of China. They are characterized by a sharp mosaic of water and nutrient availability, from exposed hilltops with poor soil development to valleys with occasional flooding, to which trees show species-specific distributions. Here we report the relationship of leaf functional traits to habitat preference of tropical karst trees. We described leaf traits of 19 tropical tree species in a seasonal karst rainforest in Guangxi Province, China, 12 species in situ and 13 ex situ in a non-karst arboretum, which served as a common garden, with six species sampled in both. We examined how the measured leaf traits differed in relation to species' habitat affinity and evaluated trait consistency between natural habitats vs. the arboretum. Leaf mass per area (LMA) and optical traits (light absorption and reflectance characteristics between 400 and 1,050 nm) showed significant associations with each other and habitats, with hilltop species showing high values of LMA and low values of photochemical reflectance index (PRI). For the six species sampled in both the karst forest and the arboretum, LMA, leaf dry matter content, stomatal density, and vein length per area showed inconsistent within-species variations, whereas some traits (stomatal pore index and lamina thickness) were similar between the two sites. In conclusion, trees specialized in exposed karst hilltops with little soils are characterized by thick leaves with high tissue density indicative of conservative resources use, and this trait syndrome could potentially be sensed remotely with PRI. PMID- 29321870 TI - Contrasting genetic metrics and patterns among naturalized rainbow trout (Oncorhynchus mykiss) in two Patagonian lakes differentially impacted by trout aquaculture. AB - Different pathways of propagation and dispersal of non-native species into new environments may have contrasting demographic and genetic impacts on established populations. Repeated introductions of rainbow trout (Oncorhynchus mykiss) to Chile in South America, initially through stocking and later through aquaculture escapes, provide a unique setting to contrast these two pathways. Using a panel of single nucleotide polymorphisms, we found contrasting genetic metrics and patterns among naturalized trout in Lake Llanquihue, Chile's largest producer of salmonid smolts for nearly 50 years, and Lake Todos Los Santos (TLS), a reference lake where aquaculture has been prohibited by law. Trout from Lake Llanquihue showed higher genetic diversity, weaker genetic structure, and larger estimates for the effective number of breeders (Nb) than trout from Lake TLS. Trout from Lake TLS were divergent from Lake Llanquihue and showed marked genetic structure and a significant isolation-by-distance pattern consistent with secondary contact between documented and undocumented stocking events in opposite shores of the lake. Multiple factors, including differences in propagule pressure, origin of donor populations, lake geomorphology, habitat quality or quantity, and life history, may help explain contrasting genetic metrics and patterns for trout between lakes. We contend that high propagule pressure from aquaculture may not only increase genetic diversity and Nb via demographic effects and admixture, but also may impact the evolution of genetic structure and increase gene flow, consistent with findings from artificially propagated salmonid populations in their native and naturalized ranges. PMID- 29321872 TI - Relative contribution of neutral and deterministic processes in shaping fruit feeding butterfly assemblages in Afrotropical forests. AB - The unified neutral theory of biodiversity and biogeography has gained the status of a quantitative null model for explaining patterns in ecological (meta)communities. The theory assumes that individuals of trophically similar species are functionally equivalent. We empirically evaluate the relative contribution of neutral and deterministic processes in shaping fruit-feeding butterfly assemblages in three tropical forests in Africa, using both direct (confronting the neutral model with species abundance data) and indirect approaches (testing the predictions of neutral theory using data other than species abundance distributions). Abundance data were obtained by sampling butterflies using banana baited traps set at the forest canopy and understorey strata. Our results indicate a clear consistency in the kind of species or species groups observed at either the canopy or understorey in the three studied communities. Furthermore, we found significant correlation between some flight related morphological traits and species abundance at the forest canopy, but not at the understorey. Neutral theory's contribution to explaining our data lies largely in identifying dispersal limitation as a key process regulating fruit feeding butterfly community structure. Our study illustrates that using species abundance data alone in evaluating neutral theory can be informative, but is insufficient. Species-level information such as habitat preference, host plants, geographical distribution, and phylogeny is essential in elucidating the processes that regulate biodiversity community structures and patterns. PMID- 29321873 TI - Identifying compartments in ecological networks based on energy channels. AB - It has been confirmed in many food webs that the interactions between species are divided into "compartments," that is, subgroups of highly interacting taxa with few weak interactions between the subgroups. Many of the current methods for detecting compartments in food webs are borrowed from network theory, which do little to improve our understanding of the mechanisms underpinning them. Therefore, a method based on ecological context is needed. Here, we develop a new method for detecting compartments in food webs based on the reliance of each node on energy derived from basal resources (i.e., producers or decomposers). Additional Monte Carlo simulations were conducted to test the significance of the compartmentalization. Further, we applied a food web dynamics model to test whether the effects of permutation would be retained within a single compartment. The proposed method identified significant compartments in 23 of the 28 empirical food webs that were investigated. We further demonstrated that the effects of node removal were significantly higher within compartments than between compartments. Our methods and results emphasize the importance of energy channels in forming food web structures, which sheds light on the mechanisms of self organization within food webs. PMID- 29321874 TI - Conservation planning for freshwater-marine carryover effects on Chinook salmon survival. AB - Experiences of migratory species in one habitat may affect their survival in the next habitat, in what is known as carryover effects. These effects are especially relevant for understanding how freshwater experience affects survival in anadromous fishes. Here, we study the carryover effects of juvenile salmon passage through a hydropower system (Snake and Columbia rivers, northwestern United States). To reduce the direct effect of hydrosystem passage on juveniles, some fishes are transported through the hydrosystem in barges, while the others are allowed to migrate in-river. Although hydrosystem survival of transported fishes is greater than that of their run-of-river counterparts, their relative juvenile-to-adult survival (hereafter survival) can be less. We tested for carryover effects using generalized linear mixed effects models of survival with over 1 million tagged Chinook salmon, Oncorhynchus tshawytscha (Walbaum) (Salmonidae), migrating in 1999-2013. Carryover effects were identified with rear type (wild vs. hatchery), passage-type (run-of-river vs. transported), and freshwater and marine covariates. Importantly, the Pacific Decadal Oscillation (PDO) index characterizing cool/warm (i.e., productive/nonproductive) ocean phases had a strong influence on the relative survival of rear- and passage types. Specifically, transportation benefited wild Chinook salmon more in cool PDO years, while hatchery counterparts benefited more in warm PDO years. Transportation was detrimental for wild Chinook salmon migrating early in the season, but beneficial for later season migrants. Hatchery counterparts benefited from transportation throughout the season. Altogether, wild fish could benefit from transportation approximately 2 weeks earlier during cool PDO years, with still a benefit to hatchery counterparts. Furthermore, we found some support for hypotheses related to higher survival with increased river flow, high predation in the estuary and plume areas, and faster migration and development-related increased survival with temperature. Thus, pre- and within-season information on local- and broad-scale conditions across habitats can be useful for planning and implementing real-time conservation programs. PMID- 29321875 TI - Drivers of apoplastic freezing in gymnosperm and angiosperm branches. AB - It is not well understood what determines the degree of supercooling of apoplastic sap in trees, although it determines the number and duration of annual freeze-thaw cycles in a given environment. We studied the linkage between apoplastic ice nucleation temperature, tree water status, and conduit size. We used branches of 10 gymnosperms and 16 angiosperms collected from an arboretum in Helsinki (Finland) in winter and spring. Branches with lower relative water content froze at lower temperatures, and branch water content was lower in winter than in spring. A bench drying experiment with Picea abies confirmed that decreasing branch water potential decreases apoplastic ice nucleation temperature. The studied angiosperms froze on average 2.0 and 1.8 degrees C closer to zero Celsius than the studied gymnosperms during winter and spring, respectively. This was caused by higher relative water content in angiosperms; when branches were saturated with water, apoplastic ice nucleation temperature of gymnosperms increased to slightly higher temperature than that of angiosperms. Apoplastic ice nucleation temperature in sampled branches was positively correlated with xylem conduit diameter as shown before, but saturating the branches removed the correlation. Decrease in ice nucleation temperature decreased the duration of freezing, which could have an effect on winter embolism formation via the time available for gas escape during ice propagation. The apoplastic ice nucleation temperature varied not only between branches but also within a branch between consecutive freeze-thaw cycles demonstrating the stochastic nature of ice nucleation. PMID- 29321876 TI - Effects of social information on life history and mating tactics of males in the orb-web spider Argiope bruennichi. AB - Informed mating decisions are often based on social cues providing information about prospective mating opportunities. Social information early in life can trigger developmental modifications and influence later mating decisions. A high adaptive value of such adjustments is particularly obvious in systems where potential mating rates are extremely limited and have to be carried out in a short time window. Males of the sexually cannibalistic spider Argiope bruennichi can achieve maximally two copulations which they can use for one (monogyny) or two females (bigyny). The choice between these male mating tactics should rely on female availability that males might assess through volatile sex pheromones emitted by virgin females. We predict that in response to those female cues, males of A. bruennichi should mature earlier and at a smaller body size and favor a bigynous mating tactic in comparison with controls. We sampled spiders from two areas close to the Southern and Northern species range to account for differences in mate quality and seasonality. In a fully factorial design, half of the subadult males from both areas obtained silk cues of females, while the other half remained without female exposure. Adult males were subjected to no-choice mating tests and could either monopolize the female or leave her (bigyny). We found that Southern males matured later and at a larger size than Northern males. Regardless of their origin, males also shortened the subadult stage in response to female cues, which, however, had no effects on male body mass. Contrary to our prediction, the frequencies of mating tactics were unaffected by the treatment. We conclude that while social cues during late development elicit adaptive life history adjustments, they are less important for the adjustment of mating decisions. We suggest that male tactics mostly rely on local information at the time of mate search. PMID- 29321877 TI - Phenology largely explains taller grass at successful nests in greater sage grouse. AB - Much interest lies in the identification of manageable habitat variables that affect key vital rates for species of concern. For ground-nesting birds, vegetation surrounding the nest may play an important role in mediating nest success by providing concealment from predators. Height of grasses surrounding the nest is thought to be a driver of nest survival in greater sage-grouse (Centrocercus urophasianus; sage-grouse), a species that has experienced widespread population declines throughout their range. However, a growing body of the literature has found that widely used field methods can produce misleading inference on the relationship between grass height and nest success. Specifically, it has been demonstrated that measuring concealment following nest fate (failure or hatch) introduces a temporal bias whereby successful nests are measured later in the season, on average, than failed nests. This sampling bias can produce inference suggesting a positive effect of grass height on nest survival, though the relationship arises due to the confounding effect of plant phenology, not an effect on predation risk. To test the generality of this finding for sage-grouse, we reanalyzed existing datasets comprising >800 sage grouse nests from three independent studies across the range where there was a positive relationship found between grass height and nest survival, including two using methods now known to be biased. Correcting for phenology produced equivocal relationships between grass height and sage-grouse nest survival. Viewed in total, evidence for a ubiquitous biological effect of grass height on sage-grouse nest success across time and space is lacking. In light of these findings, a reevaluation of land management guidelines emphasizing specific grass height targets to promote nest success may be merited. PMID- 29321878 TI - Asymmetric reproductive interference: The consequences of cross-pollination on reproductive success in sexual-apomictic populations of Potentilla puberula (Rosaceae). AB - Apomixis evolves from a sexual background and usually is linked to polyploidization. Pseudogamous gametophytic apomicts, which require a fertilization to initiate seed development, of various ploidy levels frequently co-occur with their lower-ploid sexual ancestors, but the stability of such mixed populations is affected by reproductive interferences mediated by cross pollination. Thereby, reproductive success of crosses depends on the difference in ploidy levels of mating partners, that is, on tolerance of deviation from the balanced ratio of maternal versus paternal genomes. Quality of pollen can further affect reproductive success in intercytotype pollinations. Cross-fertilization, however, can be avoided by selfing which may be induced upon pollination with mixtures of self- and cross-pollen (i.e., mentor effects). We tested for reproductive compatibility of naturally co-occurring tetraploid sexuals and penta to octoploid apomicts in the rosaceous species Potentilla puberula by means of controlled crosses. We estimated the role of selfing as a crossing barrier and effects of self- and cross-pollen quality as well as maternal: paternal genomic ratios in the endosperm on reproductive success. Cross-fertilization of sexuals by apomicts was not blocked by selfing, and seed set was reduced in hetero- compared to homoploid crosses. Thereby, seed set was negatively related to deviations from balanced parental genomic ratios in the endosperm. In contrast, seed set in the apomictic cytotypes was not reduced in hetero- compared to homoploid crosses. Thus, apomictic cytotypes either avoided intercytotype cross fertilization through selfing, tolerated intercytotype cross-fertilizations without negative effects on reproductive success, or even benefitted from higher pollen quality in intercytotype pollinations. Our experiment provides evidence for asymmetric reproductive interference, in favor of the apomicts, with significantly reduced seed set of sexuals in cytologically mixed populations, whereas seed set in apomicts was not affected. Incompleteness of crossing barriers further indicated at least partial losses of a parental genomic endosperm balance requirement. PMID- 29321879 TI - Space-time clusters for early detection of grizzly bear predation. AB - Accurate detection and classification of predation events is important to determine predation and consumption rates by predators. However, obtaining this information for large predators is constrained by the speed at which carcasses disappear and the cost of field data collection. To accurately detect predation events, researchers have used GPS collar technology combined with targeted site visits. However, kill sites are often investigated well after the predation event due to limited data retrieval options on GPS collars (VHF or UHF downloading) and to ensure crew safety when working with large predators. This can lead to missing information from small-prey (including young ungulates) kill sites due to scavenging and general site deterioration (e.g., vegetation growth). We used a space-time permutation scan statistic (STPSS) clustering method (SaTScan) to detect predation events of grizzly bears (Ursus arctos) fitted with satellite transmitting GPS collars. We used generalized linear mixed models to verify predation events and the size of carcasses using spatiotemporal characteristics as predictors. STPSS uses a probability model to compare expected cluster size (space and time) with the observed size. We applied this method retrospectively to data from 2006 to 2007 to compare our method to random GPS site selection. In 2013-2014, we applied our detection method to visit sites one week after their occupation. Both datasets were collected in the same study area. Our approach detected 23 of 27 predation sites verified by visiting 464 random grizzly bear locations in 2006-2007, 187 of which were within space-time clusters and 277 outside. Predation site detection increased by 2.75 times (54 predation events of 335 visited clusters) using 2013-2014 data. Our GLMMs showed that cluster size and duration predicted predation events and carcass size with high sensitivity (0.72 and 0.94, respectively). Coupling GPS satellite technology with clusters using a program based on space-time probability models allows for prompt visits to predation sites. This enables accurate identification of the carcass size and increases fieldwork efficiency in predation studies. PMID- 29321880 TI - Ocean acidification ameliorates harmful effects of warming in primary consumer. AB - Climate change-induced warming and ocean acidification are considered two imminent threats to marine biodiversity and current ecosystem structures. Here, we have for the first time examined an animal's response to a complete life cycle of exposure to co-occurring warming (+3 degrees C) and ocean acidification (+1,600 MUatm CO 2), using the key subarctic planktonic copepod, Calanus finmarchicus, as a model species. The animals were generally negatively affected by warming, which significantly reduced the females' energy status and reproductive parameters (respectively, 95% and 69%-87% vs. control). Unexpectedly, simultaneous acidification partially offset the negative effect of warming in an antagonistic manner, significantly improving reproductive parameters and hatching success (233%-340% improvement vs. single warming exposure). The results provide proof of concept that ocean acidification may partially offset negative effects caused by warming in some species. Possible explanations and ecological implications for the observed antagonistic effect are discussed. PMID- 29321881 TI - An approach based on the total-species accumulation curve and higher taxon richness to estimate realistic upper limits in regional species richness. AB - Most of accumulation curves tend to underestimate species richness, as they do not consider spatial heterogeneity in species distribution, or are structured to provide lower bound estimates and limited extrapolations. The total-species (T-S) curve allows extrapolations over large areas while taking into account spatial heterogeneity, making this estimator more prone to attempt upper bound estimates of regional species richness. However, the T-S curve may overestimate species richness due to (1) the mismatch among the spatial units used in the accumulation model and the actual units of variation in beta-diversity across the region, (2) small-scale patchiness, and/or (3) patterns of rarity of species. We propose a new framework allowing the T-S curve to limit overestimation and give an application to a large dataset of marine mollusks spanning over 11 km2 of subtidal bottom (W Mediterranean). As accumulation patterns are closely related across the taxonomic hierarchy up to family level, improvements of the T-S curve leading to more realistic estimates of family richness, that is, not exceeding the maximum number of known families potentially present in the area, can be considered as conducive to more realistic estimates of species richness. Results on real data showed that improvements of the T-S curve to accounts for true variations in beta-diversity within the sampled areas, small-scale patchiness, and rarity of families led to the most plausible richness when all aspects were considered in the model. Data on simulated communities indicated that in the presence of high heterogeneity, and when the proportion of rare species was not excessive (>2/3), the procedure led to almost unbiased estimates. Our findings highlighted the central role of variations in beta-diversity within the region when attempting to estimate species richness, providing a general framework exploiting the properties of the T-S curve and known family richness to estimate plausible upper bounds in gamma-diversity. PMID- 29321882 TI - Timescale effects on the environmental control of carbon and water fluxes of an apple orchard. AB - Model parameterization and validation of earth-atmosphere interactions are generally performed using a single timescale (e.g., nearly instantaneous, daily, and annual), although both delayed responses and hysteretic effects have been widely recognized. The lack of consideration of these effects hampers our capability to represent them in empirical- or process-based models. Here we explore, using an apple orchard ecosystem in the North of Italy as a simplified case study, how the considered timescale impacts the relative importance of the single environmental variables in explaining observed net ecosystem exchange (NEE) and evapotranspiration (ET). Using 6 years of eddy covariance and meteorological information as input data, we found a decay of the relative importance of the modeling capability of photosynthetically active radiation in explaining both NEE and ET moving from half-hourly to seasonal timescale and an increase in the relative importance of air temperature (T) and VPD. Satellite NDVI, used as proxy of leaf development, added little improvement to overall modeling capability. Increasing the timescale, the number of variables needed for parameterization decreased (from 5 to 1), while the proportion of variance explained by the model increased (r2 from 0.56-0.78 to 0.85-0.90 for NEE and ET respectively). The wavelet coherence and the phase analyses showed that the two variables that increased their relative importance when the scale increased (T, VPD) were not in phase at the correlation peak of both ET and NEE. This phase shift in the time domain corresponds to a hysteretic response in the meteorological variables domain. This work confirms that the model parameterization should be performed using parameters calculated at the appropriate scale. It suggests that in managed ecosystems, where the interannual variability is minimized by the agronomic practices, the use of timescales large enough to include hysteretic and delayed responses reduces the number of required input variables and improves their explanatory capacity. PMID- 29321883 TI - Quantifying the effects of ecological constraints on trait expression using novel trait-gradient analysis parameters. AB - Complex processes related to biotic and abiotic forces can impose limitations to assembly and composition of plant communities. Quantifying the effects of these constraints on plant functional traits across environmental gradients, and among communities, remains challenging. We define ecological constraint (Ci ) as the combined, limiting effect of biotic interactions and environmental filtering on trait expression (i.e., the mean value and range of functional traits). Here, we propose a set of novel parameters to quantify this constraint by extending the trait-gradient analysis (TGA) methodology. The key parameter is ecological constraint, which is dimensionless and can be measured at various scales, for example, on population and community levels. It facilitates comparing the effects of ecological constraints on trait expressions across environmental gradients, as well as within and among communities. We illustrate the implementation of the proposed parameters using the bark thickness of 14 woody species along an aridity gradient on granite outcrops in southwestern Australia. We found a positive correlation between increasing environmental stress and strength of ecological constraint on bark thickness expression. Also, plants from more stressful habitats (shrublands on shallow soils and in sun-exposed locations) displayed higher ecological constraint for bark thickness than plants in more benign habitats (woodlands on deep soils and in sheltered locations). The relative ease of calculation and dimensionless nature of Ci allow it to be readily implemented at various scales and make it widely applicable. It therefore has the potential to advance the mechanistic understanding of the ecological processes shaping trait expression. Some future applications of the new parameters could be investigating the patterns of ecological constraints (1) among communities from different regions, (2) on different traits across similar environmental gradients, and (3) for the same trait across different gradient types. PMID- 29321885 TI - Climate change affecting oil palm agronomy, and oil palm cultivation increasing climate change, require amelioration. AB - Palm oil is used in various valued commodities and is a large global industry worth over US$ 50 billion annually. Oil palms (OP) are grown commercially in Indonesia and Malaysia and other countries within Latin America and Africa. The large-scale land-use change has high ecological, economic, and social impacts. Tropical countries in particular are affected negatively by climate change (CC) which also has a detrimental impact on OP agronomy, whereas the cultivation of OP increases CC. Amelioration of both is required. The reduced ability to grow OP will reduce CC, which may allow more cultivation tending to increase CC, in a decreasing cycle. OP could be increasingly grown in more suitable regions occurring under CC. Enhancing the soil fauna may compensate for the effect of CC on OP agriculture to some extent. The effect of OP cultivation on CC may be reduced by employing reduced emissions from deforestation and forest degradation plans, for example, by avoiding illegal fire land clearing. Other ameliorating methods are reported herein. More research is required involving good management practices that can offset the increases in CC by OP plantations. Overall, OP growing countries should support the Paris convention on reducing CC as the most feasible scheme for reducing CC. PMID- 29321884 TI - Gut microbiota composition is associated with environmental landscape in honey bees. AB - There is growing recognition that the gut microbial community regulates a wide variety of important functions in its animal hosts, including host health. However, the complex interactions between gut microbes and environment are still unclear. Honey bees are ecologically and economically important pollinators that host a core gut microbial community that is thought to be constant across populations. Here, we examined whether the composition of the gut microbial community of honey bees is affected by the environmental landscape the bees are exposed to. We placed honey bee colonies reared under identical conditions in two main landscape types for 6 weeks: either oilseed rape farmland or agricultural farmland distant to fields of flowering oilseed rape. The gut bacterial communities of adult bees from the colonies were then characterized and compared based on amplicon sequencing of the 16S rRNA gene. While previous studies have delineated a characteristic core set of bacteria inhabiting the honey bee gut, our results suggest that the broad environment that bees are exposed to has some influence on the relative abundance of some members of that microbial community. This includes known dominant taxa thought to have functions in nutrition and health. Our results provide evidence for an influence of landscape exposure on honey bee microbial community and highlight the potential effect of exposure to different environmental parameters, such as forage type and neonicotinoid pesticides, on key honey bee gut bacteria. This work emphasizes the complexity of the relationship between the host, its gut bacteria, and the environment and identifies target microbial taxa for functional analyses. PMID- 29321886 TI - Gap formation and dynamics after long-term steady state in an old-growth Picea abies stand in Norway: Above- and belowground interactions. AB - Stand dynamics and the gap initiation prior to gap formation are not well understood because of its long-term nature and the scarcity of late-successional stands. Reconstruction of such disturbance is normally based on historical records and dendroecological methods. We investigated gap initiation and formation at the fine-scale stand level in the old-growth reserve of Karlshaugen in Norway. Given its long-term conservation history, and thorough mapping in permanent marked plots with spatially referenced trees, it provides an opportunity to present stand development before, during, and after gap formation. Late-successional decline in biomass was recorded after more than 50 years of close to steady state. Gaps in the canopy were mainly created by large old trees that had been killed by spruce bark beetles. Snapping by wind was the main reason for treefall. Long-term dominance of Norway spruce excluded downy birch and Scots pine from the stand. Comparisons of the forest floor soil properties between the gap and nongap area showed significantly higher concentrations of plant available Ca within the gap area. Plant root simulator (PRSTM) probes showed significantly higher supply rates for Ca and Mg, but significantly lower K for the gap compared to the nongap area. Soil water from the gap area had significantly higher C:N ratios compared to the nongap area. Fine-scale variation with increasing distance to logs indicated that CWD is important for leaking of DOC and Ca. Our long-term study from Karlshaugen documents gap dynamics after more than 50 years of steady state and a multiscale disturbance regime in an old-growth forest. The observed disturbance dynamic caused higher aboveground and belowground heterogeneity in plots, coarse woody debris, and nutrients. Our study of the nutrient levels of the forest floor suggest that natural gaps of old-growth forest provide a long lasting biogeochemical feedback system particularly with respect to Ca and probably also N. Norway spruce trees near the gap edge responded with high plasticity to reduced competition, showing the importance of the edge zone as hot spots for establishing heterogeneity, but also the potential for carbon sequestration in old-growth forest. PMID- 29321887 TI - Habitat formation prevails over predation in influencing fouling communities. AB - Coastal human-made structures, such as marinas and harbors, are expanding worldwide. Species assemblages described from these artificial habitats are novel relative to natural reefs, particularly in terms of the abundance of nonindigenous species (NIS). Although these fouling assemblages are clearly distinctive, the ecosystem functioning and species interactions taking place there are little understood. For instance, large predators may influence the fouling community development either directly (feeding on sessile fauna) or indirectly (feeding on small predators associated with these assemblages). In addition, by providing refuges, habitat complexity may modify the outcome of species interactions and the extent of biotic resistance (e.g., by increasing the abundance of niche-specific competitors and predators of NIS). Using experimental settlement panels deployed in the field for 2.5 months, we tested the influence of predation (i.e., caging experiment), artificial structural complexity (i.e., mimics of turf-forming species), and their interactions (i.e., refuge effects) on the development of sessile and mobile fauna in two marinas. In addition, we tested the role of biotic complexity-arising from the habitat-forming species that grew on the panels during the trial-on the richness and abundance of mobile fauna. The effect of predation and artificial habitat complexity was negligible, regardless of assemblage status (i.e., native, cryptogenic, and nonindigenous). Conversely, habitat-forming species and associated epibionts, responsible for biotic complexity, had a significant effect on mobile invertebrates (richness, abundance, and community structure). In particular, the richness and abundance of mobile NIS were positively affected by biotic complexity, with site-dependent relationships. Altogether, our results indicate that biotic complexity prevails over artificial habitat complexity in determining the distribution of mobile species under low predation pressure. Facilitation of native and non-native species thus seems to act upon diversity and community development: This process deserves further consideration in models of biotic resistance to invasion in urban marine habitats. PMID- 29321888 TI - A general modeling framework for describing spatially structured population dynamics. AB - Variation in movement across time and space fundamentally shapes the abundance and distribution of populations. Although a variety of approaches model structured population dynamics, they are limited to specific types of spatially structured populations and lack a unifying framework. Here, we propose a unified network-based framework sufficiently novel in its flexibility to capture a wide variety of spatiotemporal processes including metapopulations and a range of migratory patterns. It can accommodate different kinds of age structures, forms of population growth, dispersal, nomadism and migration, and alternative life history strategies. Our objective was to link three general elements common to all spatially structured populations (space, time and movement) under a single mathematical framework. To do this, we adopt a network modeling approach. The spatial structure of a population is represented by a weighted and directed network. Each node and each edge has a set of attributes which vary through time. The dynamics of our network-based population is modeled with discrete time steps. Using both theoretical and real-world examples, we show how common elements recur across species with disparate movement strategies and how they can be combined under a unified mathematical framework. We illustrate how metapopulations, various migratory patterns, and nomadism can be represented with this modeling approach. We also apply our network-based framework to four organisms spanning a wide range of life histories, movement patterns, and carrying capacities. General computer code to implement our framework is provided, which can be applied to almost any spatially structured population. This framework contributes to our theoretical understanding of population dynamics and has practical management applications, including understanding the impact of perturbations on population size, distribution, and movement patterns. By working within a common framework, there is less chance that comparative analyses are colored by model details rather than general principles. PMID- 29321889 TI - Using expert knowledge to incorporate uncertainty in cause-of-death assignments for modeling of cause-specific mortality. AB - Implicit and explicit use of expert knowledge to inform ecological analyses is becoming increasingly common because it often represents the sole source of information in many circumstances. Thus, there is a need to develop statistical methods that explicitly incorporate expert knowledge, and can successfully leverage this information while properly accounting for associated uncertainty during analysis. Studies of cause-specific mortality provide an example of implicit use of expert knowledge when causes-of-death are uncertain and assigned based on the observer's knowledge of the most likely cause. To explicitly incorporate this use of expert knowledge and the associated uncertainty, we developed a statistical model for estimating cause-specific mortality using a data augmentation approach within a Bayesian hierarchical framework. Specifically, for each mortality event, we elicited the observer's belief of cause-of-death by having them specify the probability that the death was due to each potential cause. These probabilities were then used as prior predictive values within our framework. This hierarchical framework permitted a simple and rigorous estimation method that was easily modified to include covariate effects and regularizing terms. Although applied to survival analysis, this method can be extended to any event-time analysis with multiple event types, for which there is uncertainty regarding the true outcome. We conducted simulations to determine how our framework compared to traditional approaches that use expert knowledge implicitly and assume that cause-of-death is specified accurately. Simulation results supported the inclusion of observer uncertainty in cause-of-death assignment in modeling of cause-specific mortality to improve model performance and inference. Finally, we applied the statistical model we developed and a traditional method to cause-specific survival data for white-tailed deer, and compared results. We demonstrate that model selection results changed between the two approaches, and incorporating observer knowledge in cause-of-death increased the variability associated with parameter estimates when compared to the traditional approach. These differences between the two approaches can impact reported results, and therefore, it is critical to explicitly incorporate expert knowledge in statistical methods to ensure rigorous inference. PMID- 29321890 TI - Nature versus nurture? Consequences of short captivity in early stages. AB - Biological changes occurring as a consequence of domestication and/or captivity are not still deeply known. In Atlantic salmon (Salmo salar), endangered (Southern Europe) populations are enhanced by supportive breeding, which involves only 6 months of captive rearing following artificial spawning of wild-collected adults. In this work, we assess whether several fitness-correlated life-history traits (migratory behavior, straying rate, age at maturity, and growth) are affected by early exposure to the captive environment within a generation, before reproduction thus before genetic selection. Results showed significant differences in growth and migratory behavior (including straying), associated with this very short period of captivity in natural fish populations, changing even genetic variability (decreased in hatchery-reared adults) and the native population structure within and between rivers of the species. These changes appeared within a single generation, suggesting very short time of captivity is enough for initiating changes normally attributed to domestication. These results may have potential implications for the long-term population stability/viability of species subjected to restoration and enhancement processes and could be also considered for the management of zoo populations. PMID- 29321892 TI - Regional patterns of declining butternut (Juglans cinerea L.) suggest site characteristics for restoration. AB - Butternut trees dying from a canker disease were first reported in southwestern Wisconsin in 1967. Since then, the disease has caused extensive mortality of butternut throughout its North American range. The objectives of this study were to quantify changes in butternut populations and density across its range and identify habitat characteristics of sites where butternut is surviving in order to locate regions for potential butternut restoration. The natural range of butternut (Juglans cinerea L.) extends over a large region of eastern N. America encompassing New Brunswick south to North Carolina, north to Minnesota, and southwest to Missouri. Despite the species' large range, it is typically not a common tree, comprising a relatively minor component of several different forest types. We evaluated change in butternut abundance and volume from current and historic data from 21 states in the eastern United States. We related abundance and volume at two time periods to a suite of ecological and site factors in order to characterize site conditions where butternut survived. We also assessed the current level of butternut mortality across its range. Since the 1980s, the number of butternut trees and butternut volume have decreased by 58% and 44%, respectively, across its US range. Substantial relative decreases in tree numbers and volume occurred in most ecoregion sections. Five environmental variables were found to be significant predictors of butternut presence. The potential impacts of butternut canker are particularly acute as the canker pathogen invasion pushes a rare tree species toward extinction, at least at a local scale. Based on the results presented here, large-diameter maple/beech/birch stands in dry, upland sites in eastern Minnesota, western Wisconsin, and upstate New York appear to offer the most favorable conditions for butternut growth and survival and thus may be the best stands for planting resistant butternut trees. PMID- 29321891 TI - Population genetic structure of the endemic rosewoods Dalbergia cochinchinensis and D. oliveri at a regional scale reflects the Indochinese landscape and life history traits. AB - Indochina is a biodiversity hot spot and harbors a high number of endemic species, most of which are poorly studied. This study explores the genetic structure and reproductive system of the threatened endemic timber species Dalbergia cochinchinensis and Dalbergia oliveri using microsatellite data from populations across Indochina and relates it to landscape characteristics and life history traits. We found that the major water bodies in the region, Mekong and Tonle Sap, represented barriers to gene flow and that higher levels of genetic diversity were found in populations in the center of the distribution area, particularly in Cambodia. We suggest that this pattern is ancient, reflecting the demographic history of the species and possible location of refugia during earlier time periods with limited forest cover, which was supported by signs of old genetic bottlenecks. The D. oliveri populations had generally high levels of genetic diversity (mean He = 0.73), but also strong genetic differentiation among populations (global GST = 0.13), while D. cochinchinensis had a moderate level of genetic diversity (mean He = 0.55), and an even stronger level of differentiation (global GST = 0.25). These differences in genetic structure can be accounted for by a higher level of gene flow in D. oliveri due to a higher dispersal capacity, but also by the broader distribution area for D. oliveri, and the pioneer characteristics of D. cochinchinensis. This study represents the first detailed analysis of landscape genetics for tree species in Indochina, and the found patterns might be common for other species with similar ecology. PMID- 29321893 TI - Opposing deer and caterpillar foraging preferences may prevent reductions in songbird prey biomass in historically overbrowsed forests. AB - Overbrowsing by ungulates decimates plant populations and reduces diversity in a variety of ecosystems, but the mechanisms by which changes to plant community composition influence other trophic levels are poorly understood. In addition to removal of avian nesting habitat, browsing is hypothesized to reduce bird density and diversity through reduction of insect prey on browse-tolerant hosts left behind by deer. In this study, we excluded birds from branches of six tree species to quantify differences in songbird prey removal across trees that vary in deer browse preference. Early in the breeding season, birds preyed on caterpillars at levels proportional to their abundance on each host. Combining these data with tree species composition data from stands exposed to experimentally controlled deer densities over 30 years ago, we tested whether overbrowsing by white-tailed deer reduces prey biomass long after deer densities are reduced. Our analysis predicts total prey availability in the canopy of regenerating forests is fairly robust to historic exposure to high deer densities, though distribution of prey available from host species changes dramatically. This predicted compensatory effect was unexpected and is driven by high prey abundance on a single host tree species avoided by browsing deer, Prunus serotina. Thus, while we confirm that prey abundance on host trees can act as a reliable predictor for relative prey availability, this study shows that quantifying prey abundance across host trees is essential to understanding how changes in tree species composition interact with ungulate browse preference to determine prey availability for songbirds. PMID- 29321895 TI - Impact of male alternative reproductive tactics on female costs of sexual conflict under variation in operational sex ratio and population density. AB - Sexual conflict over mating rate is both pervasive and evolutionarily costly. For females, the lifetime reproductive fitness costs that arise through interactions with potential mates will be influenced by the frequency of such interactions, and the fitness cost of each interaction. Both of these factors are likely to be influenced by variation in operational sex ratio (OSR) and population density. Variation in OSR- and density-dependent male alternative reproductive tactics (ARTs) may be particularly important if the fitness costs that females experience vary with the reproductive tactics that males express. Using a simple model, we consider several examples of OSR- and/or density-dependent variation in male ARTs and the frequency of male-female interactions, and find that variation in the expression of male ARTs has the potential to augment or diminish the costs of frequent male interactions for females. Accurately documenting variation in the expression of male ARTs and associated female fitness costs will benefit future work in this area. PMID- 29321894 TI - Development of a genotype-by-sequencing immunogenetic assay as exemplified by screening for variation in red fox with and without endemic rabies exposure. AB - Pathogens are recognized as major drivers of local adaptation in wildlife systems. By determining which gene variants are favored in local interactions among populations with and without disease, spatially explicit adaptive responses to pathogens can be elucidated. Much of our current understanding of host responses to disease comes from a small number of genes associated with an immune response. High-throughput sequencing (HTS) technologies, such as genotype-by sequencing (GBS), facilitate expanded explorations of genomic variation among populations. Hybridization-based GBS techniques can be leveraged in systems not well characterized for specific variants associated with disease outcome to "capture" specific genes and regulatory regions known to influence expression and disease outcome. We developed a multiplexed, sequence capture assay for red foxes to simultaneously assess ~300-kbp of genomic sequence from 116 adaptive, intrinsic, and innate immunity genes of predicted adaptive significance and their putative upstream regulatory regions along with 23 neutral microsatellite regions to control for demographic effects. The assay was applied to 45 fox DNA samples from Alaska, where three arctic rabies strains are geographically restricted and endemic to coastal tundra regions, yet absent from the boreal interior. The assay provided 61.5% on-target enrichment with relatively even sequence coverage across all targeted loci and samples (mean = 50*), which allowed us to elucidate genetic variation across introns, exons, and potential regulatory regions (4,819 SNPs). Challenges remained in accurately describing microsatellite variation using this technique; however, longer-read HTS technologies should overcome these issues. We used these data to conduct preliminary analyses and detected genetic structure in a subset of red fox immune-related genes between regions with and without endemic arctic rabies. This assay provides a template to assess immunogenetic variation in wildlife disease systems. PMID- 29321896 TI - How much of the invader's genetic variability can slip between our fingers? A case study of secondary dispersal of Poa annua on King George Island (Antarctica). AB - We studied an invasion of Poa annua on King George Island (Maritime Antarctic). The remoteness of this location, its geographic isolation, and its limited human traffic provided an opportunity to trace the history of an invasion of the species. Poa annua was recorded for the first time at H. Arctowski Polish Antarctic Station in the austral summer of 1985/6. In 2008/9, the species was observed in a new locality at the Ecology Glacier Forefield (1.5 km from "Arctowski"). We used AFLP to analyze the genetic differences among three populations of P. annua: the two mentioned above (Station and Forefield) and the putative origin of the introduction, Warsaw (Poland). There was 38% genetic variance among the populations. Pairwise FPT was 0.498 between the Forefield and Warsaw populations and 0.283 between Warsaw and Station. There were 15 unique bands in the Warsaw population (frequency from 6% to 100%) and one in the Station/Forefield populations (which appears in all analyzed individuals from both populations). The Delta(K) parameter indicated two groups of samples: Warsaw/Station and Forefield. As indicated by Fu's Fs statistics and an analysis of mismatch distribution, the Forefield population underwent a bottleneck and/or founder effect. The Forefield population was likely introduced by secondary dispersal from the Station population. PMID- 29321897 TI - Nutrient stoichiometry and land use rather than species richness determine plant functional diversity. AB - Plant functional traits reflect individual and community ecological strategies. They allow the detection of directional changes in community dynamics and ecosystemic processes, being an additional tool to assess biodiversity than species richness. Analysis of functional patterns in plant communities provides mechanistic insight into biodiversity alterations due to anthropogenic activity. Although studies have consi-dered of either anthropogenic management or nutrient availability on functional traits in temperate grasslands, studies combining effects of both drivers are scarce. Here, we assessed the impacts of management intensity (fertilization, mowing, grazing), nutrient stoichiometry (C, N, P, K), and vegetation composition on community-weighted means (CWMs) and functional diversity (Rao's Q) from seven plant traits in 150 grasslands in three regions in Germany, using data of 6 years. Land use and nutrient stoichiometry accounted for larger proportions of model variance of CWM and Rao's Q than species richness and productivity. Grazing affected all analyzed trait groups; fertilization and mowing only impacted generative traits. Grazing was clearly associated with nutrient retention strategies, that is, investing in durable structures and production of fewer, less variable seed. Phenological variability was increased. Fertilization and mowing decreased seed number/mass variability, indicating competition-related effects. Impacts of nutrient stoichiometry on trait syndromes varied. Nutrient limitation (large N:P, C:N ratios) promoted species with conservative strategies, that is, investment in durable plant structures rather than fast growth, fewer seed, and delayed flowering onset. In contrast to seed mass, leaf-economics variability was reduced under P shortage. Species diversity was positively associated with the variability of generative traits. Synthesis. Here, land use, nutrient availability, species richness, and plant functional strategies have been shown to interact complexly, driving community composition, and vegetation responses to management intensity. We suggest that deeper understanding of underlying mechanisms shaping community assembly and biodiversity will require analyzing all these parameters. PMID- 29321898 TI - Sap flow characteristics and responses to summer rainfall for Pinus tabulaeformis and Hippophae rhamnoides in the Loess hilly region of China. AB - As a major driving element of the structure and function of arid and semiarid ecosystems, rainfall is the essential factor limiting plant biological processes. To clarify the characteristics of transpiration and responses to summer rainfall, sap flow density (Fd) of Pinus tabulaeformis and Hippophae rhamnoides was monitored using thermal dissipation probes. In addition, midday leaf water potential (psim) and leaf stomatal conductance (Gs) were also analyzed to determine water use strategies. The results indicated that the diurnal variation in the normalized Fd values exhibited a single-peak curve for P. tabulaeformis, while H. rhamnoides showed multiple peaks. The normalized Fd for P. tabulaeformis remained relatively stable regardless of rainfall events. However, there was also a significant increase in the normalized Fd for H. rhamnoides in response to rainfall in June and August (p < .05), although no significant differences were observed in July. The normalized Fd values for P. tabulaeformis and H. rhamnoides fitted well with the derived variable of transpiration, an integrated index calculated from the vapor pressure deficit and solar radiation (Rs), using an exponential saturation function. The differences in fitting coefficients suggested that H. rhamnoides showed more sensitivity to summer rainfall (p < .01) than P. tabulaeformis. Furthermore, during the study period, P. tabulaeformis reduced Gs as soil water decreased, maintaining a relatively constant psim; while H. rhamnoides allowed large fluctuations in psim to maintain Gs. Therefore, P. tabulaeformis and H. rhamnoides should be considered isohydric and anisohydric species, respectively. And more consideration should be taken for H. rhamnoides in the afforestation activities and the local plantation management under the context of the frequently seasonal drought in the loess hilly region. PMID- 29321899 TI - Silicon amendment to rice plants contributes to reduced feeding in a phloem sucking insect through modulation of callose deposition. AB - Silicon (Si) uptake by Poaceae plants has beneficial effects on herbivore defense. Increased plant physical barrier and altered herbivorous feeding behaviors are documented to reduce herbivorous arthropod feeding and contribute to enhanced plant defense. Here, we show that Si amendment to rice (Oryza sativa) plants contributes to reduced feeding in a phloem feeder, the brown planthopper (Nilaparvata lugens, BPH), through modulation of callose deposition. We associated the temporal dynamics of BPH feeding with callose deposition on sieve plates and further with callose synthase and hydrolase gene expression in plants amended with Si. Biological assays revealed that BPH feeding was lower in Si amended than in nonamended plants in the early stages post-BPH infestation. Histological observation showed that BPH infestation triggered fast and strong callose deposition in Si-amended plants compared with nonamended plants. Analysis using qRT-PCR revealed that expression of the callose synthase gene OsGSL1 was up regulated more and that the callose hydrolase (beta-1,3-glucanase) gene Gns5 was up-regulated less in Si-amended than in nonamended plants during the initial stages of BPH infestation. These dynamic expression levels of OsGSL1 and Gns5 in response to BPH infestation correspond to callose deposition patterns in Si amended versus nonamended plants. It is demonstrated here that BPH infestation triggers differential gene expression associated with callose synthesis and hydrolysis in Si-amended and nonamended rice plants, which allows callose to be deposited more on sieve tubes and sieve tube occlusions to be maintained more thus contributing to reduced BPH feeding on Si-amended plants. PMID- 29321900 TI - Changing methodology results in operational drift in the meaning of leaf area index, necessitating implementation of foliage layer index. AB - Leaf area index (LAI) was developed to describe the number of layers of foliage in a monoculture. Subsequent expansion into measurement by remote-sensing methods has resulted in misrepresentation of LAI. The new name foliage layer index (FLI) is applied to a more simply estimated version of Goodall's "cover repetition," that is, the number of layers of foliage a single species has, either within a community or in monoculture. The relationship of FLI with cover is demonstrated in model communities, and some potential relationships between FLI and species' habit are suggested. FLI comm is a new formulation for the number of layers of foliage in a mixed-species' community. LAI should now be reserved for remote sensing applications in mixed communities, where it is probably a nonlinear measure of the density of light-absorbing pigments. PMID- 29321901 TI - Proximate causes of altitudinal differences in body size in an agamid lizard. AB - Body size is directly linked to key life history traits such as growth, fecundity, and survivorship. Identifying the causes of body size variation is a critical task in ecological and evolutionary research. Body size variation along altitudinal gradients has received considerable attention; however, the underlying mechanisms are poorly understood. Here, we compared the growth rate and age structure of toad-headed lizards (Phrynocephalus vlangalii) from two populations found at different elevations in the Qinghai-Tibetan Plateau. We used mark-recapture and skeletochronological analysis to identify the potential proximate causes of altitudinal variation in body size. Lizards from the high elevation site had higher growth rates and attained slightly larger adult body sizes than lizards from the low-elevation site. However, newborns produced by high-elevation females were smaller than those by low-elevation females. Von Bertalanffy growth estimates predicted high-elevation individuals would reach sexual maturity at an earlier age and have a lower mean age than low-elevation individuals. Relatively lower mean age for the high-elevation population was confirmed using the skeletochronological analysis. These results support the prediction that a larger adult body size of high-elevation P. vlangalii results from higher growth rates, associated with higher resource availability. PMID- 29321902 TI - Early phenology and growth trait variation in closely related European pine species. AB - Closely related taxa occupying different environments are valuable systems for studying evolution. In this study, we examined differences in early phenology (bud set, bud burst) and early growth in a common garden trial of closely related pine species: Pinus sylvestris, P. mugo, and P. uncinata. Seeds for the trial were sourced from populations across the ranges of each species in Europe. Over first 4 years of development, clear differences were observed between species, while the most significant intraspecific differentiation was observed among plants from P. sylvestris populations from continental European locations. Trait differences within P. sylvestris were highly correlated with altitude and latitude of the site of origin. Meanwhile, P. mugo populations from the Carpathians had the earliest bud set and bud flush compared to other populations of the species. Overall, populations from the P. mugo complex from heterogeneous mountain environments and P. sylvestris from the Scottish Highlands showed the highest within-population variation for the focal traits. Although the three species have been shown to be genetically highly similar, this study reveals large differences in key adaptive traits both among and within species. PMID- 29321903 TI - Separating the effects of water quality and urbanization on temperate insectivorous bats at the landscape scale. AB - Many local scale studies have shown that bats respond to water quality degradation or urbanization in a species-specific manner. However, few have separated the effects of urbanization versus water quality degradation on bats, in single city or single watershed case studies. Across North Carolina, USA, we used the standardized North American Bat Monitoring Program mobile transect protocol to survey bat activity in 2015 and 2016 at 41 sites. We collected statewide water quality and urban land cover data to disentangle the effects of urbanization and water quality degradation on bats at the landscape scale. We found that statewide, water quality degradation and urbanization were not correlated. We found that bats responded to water quality degradation and urbanization independently at the landscape scale. Eptesicus fuscus and Lasiurus cinereus negatively responded to water quality degradation. Lasiurus borealis and Perimyotis subflavus positively responded to water quality degradation. Lasionycteris noctivagans did not respond to water quality degradation but was more active in more urbanized areas. Tadarida brasiliensis positively responded to urbanization and was less active in areas with degraded water quality. We show that bat-water quality relationships found at the local scale are evident at a landscape scale. We confirm that bats are useful bioindicators for both urbanization and water quality degradation. We suggest that water quality can be used to predict the presence of bat species of conservation concern, such as P. subflavus, in areas where it has not been studied locally. PMID- 29321904 TI - Offspring of older parents are smaller-but no less bilaterally symmetrical-than offspring of younger parents in the aquatic plant Lemna turionifera. AB - Offspring quality decreases with parental age in many taxa, with offspring of older parents exhibiting reduced life span, reproductive capacity, and fitness, compared to offspring of younger parents. These "parental age effects," whose consequences arise in the next generation, can be considered as manifestations of parental senescence, in addition to the more familiar age-related declines in parent-generation survival and reproduction. Parental age effects are important because they may have feedback effects on the evolution of demographic trajectories and longevity. In addition to altering the timing of offspring life history milestones, parental age effects can also have a negative impact on offspring size, with offspring of older parents being smaller than offspring of younger parents. Here, we consider the effects of advancing parental age on a different aspect of offspring morphology, body symmetry. In this study, we followed all 403 offspring of 30 parents of a bilaterally symmetrical, clonally reproducing aquatic plant species, Lemna turionifera, to test the hypothesis that successive offspring become less symmetrical as their parent ages, using the "Continuous Symmetry Measure" as an index. Although successive offspring of aging parents older than one week became smaller and smaller, we found scant evidence for any reduction in bilateral symmetry. PMID- 29321905 TI - Detection and persistence of environmental DNA from an invasive, terrestrial mammal. AB - Invasive Sus scrofa, a species commonly referred to as wild pig or feral swine, is a destructive invasive species with a rapidly expanding distribution across the United States. We used artificial wallows and small waterers to determine the minimum amount of time needed for pig eDNA to accumulate in the water source to a detectable level. We removed water from the artificial wallows and tested eDNA detection over the course of 2 weeks to understand eDNA persistence. We show that our method is sensitive enough to detect very low quantities of eDNA shed by a terrestrial mammal that has limited interaction with water. Our experiments suggest that the number of individuals shedding into a water system can affect persistence of eDNA. Use of an eDNA detection technique can benefit management efforts by providing a sensitive method for finding even small numbers of individuals that may be elusive using other methods. PMID- 29321906 TI - Advancing breeding phenology does not affect incubation schedules in chestnut crowned babblers: Opposing effects of temperature and wind. AB - Projecting population responses to climate change requires an understanding of climatic impacts on key components of reproduction. Here, we investigate the associations among breeding phenology, climate and incubation schedules in the chestnut-crowned babbler (Pomatostomus ruficeps), a 50 g passerine with female only, intermittent incubation that typically breeds from late winter (July) to early summer (November). During daylight hours, breeding females spent an average of 33 min on the nest incubating (hereafter on-bouts) followed by 24-min foraging (hereafter off-bouts), leading to an average daytime nest attentiveness of 60%. Nest attentiveness was 25% shorter than expected from allometric calculations, largely because off-bout durations were double the expected value for a species with 16 g clutches (4 eggs * 4 g/egg). On-bout durations and daily attentiveness were both negatively related to ambient temperature, presumably because increasing temperatures allowed more time to be allocated to foraging with reduced detriment to egg cooling. By contrast, on-bout durations were positively associated with wind speed, in this case because increasing wind speed exacerbated egg cooling during off-bouts. Despite an average temperature change of 12 degrees C across the breeding season, breeding phenology had no effect on incubation schedules. This surprising result arose because of a positive relationship between temperature and wind speed across the breeding season: Any benefit of increasing temperatures was canceled by apparently detrimental consequences of increasing wind speed on egg cooling. Our results indicate that a greater appreciation for the associations among climatic variables and their independent effects on reproductive investment are necessary to understand the effects of changing climates on breeding phenology. PMID- 29321907 TI - The Groot Effect: Plant facilitation and desert shrub regrowth following extensive damage. AB - Deserts are increasing in extent globally, but existing deserts are decreasing in health. The basic biology and ecology of foundation plant species in deserts are limited. This is a direct study that provides an estimate of the capacity for a locally dominant foundation shrub species in California to recover from damage. Desert shrubs are cleared and damaged by humans for many purposes including agriculture, oil and gas production, and sustainable energy developments; we need to know whether foundation species consistently facilitate the abundance and diversity of other plants in high-stress ecosystems and whether they can recover. A total of 20 Ephedra californica shrubs were clipped to the ground at a single site and systematically resampled for regrowth 2 years later. These shrubs were damaged once and regrew rapidly, and relatively, larger shrubs were not more resilient. This study provides evidence for what we termed the "Groot Effect" because smaller individuals of this shrub species can recover from significant aboveground damage and continue to have positive effects on other plant species (similar to the popular culture reference to a benefactor tree species). The density of other plant species was consistently facilitated while effects on diversity varied with season. These findings confirm that E. californica is a foundation species that can be an important restoration tool within the deserts of California in spite of extreme cycles of drought and physical damage to its canopy. PMID- 29321908 TI - Rapid song divergence leads to discordance between genetic distance and phenotypic characters important in reproductive isolation. AB - The criteria for species delimitation in birds have long been debated, and several recent studies have proposed new methods for such delimitation. On one side, there is a large consensus of investigators who believe that the only evidence that can be used to delimit species is molecular phylogenetics, and with increasing numbers of markers to gain better support, whereas on the other, there are investigators adopting alternative approaches based largely on phenotypic differences, including in morphology and communication signals. Yet, these methods have little to say about rapid differentiation in specific traits shown to be important in reproductive isolation. Here, we examine variation in phenotypic (morphology, plumage, and song) and genotypic (mitochondrial and nuclear DNA) traits among populations of yellow-rumped tinkerbird Pogoniulus bilineatus in East Africa. Strikingly, song divergence between the P. b. fischeri subspecies from Kenya and Zanzibar and P. b. bilineatus from Tanzania is discordant with genetic distance, having occurred over a short time frame, and playback experiments show that adjacent populations of P. b. bilineatus and P. b. fischeri do not recognize one another's songs. While such rapid divergence might suggest a founder effect following invasion of Zanzibar, molecular evidence suggests otherwise, with insular P. b. fischeri nested within mainland P. b. fischeri. Populations from the Eastern Arc Mountains are genetically more distant, yet share the same song with P. b. bilineatus from Coastal Tanzania and Southern Africa, suggesting they would interbreed. We believe investigators ought to examine potentially rapid divergence in traits important in species recognition and sexual selection when delimiting species, rather than relying entirely on arbitrary quantitative characters or molecular markers. PMID- 29321909 TI - Detecting rare carnivores using scats: Implications for monitoring a fox incursion into Tasmania. AB - The ability to detect the incursion of an invasive species or destroy the last individuals during an eradication program are some of the most difficult aspects of invasive species management. The presence of foxes in Tasmania is a contentious issue with recent structured monitoring efforts, involving collection of carnivore scats and testing for fox DNA, failing to detect any evidence of foxes. Understanding the likelihood that monitoring efforts would detect fox presence, given at least one is present, is therefore critical for understanding the role of scat monitoring for informing the response to an incursion. We undertook trials to estimate the probability of fox scat detection through monitoring by scat-detector dogs and person searches and used this information to critically evaluate the power of scat monitoring efforts for detecting foxes in the Tasmanian landscape. The probability of detecting a single scat present in a 1-km2 survey unit was highest for scat-detector dogs searches (0.053) compared with person searches (x-?0.015) for each 10 km of search effort. Simulation of the power of recent scat monitoring efforts undertaken in Tasmania from 2011 to 2015 suggested that single foxes would have to be present in at least 20 different locations or fox breeding groups present in at least six different locations, in order to be detected with a high level of confidence (>0.80). We have shown that highly structured detection trials can provide managers with the quantitative tools needed to make judgments about the power of large-scale scat monitoring programs. Results suggest that a fox population, if present in Tasmania, could remain undetected by a large-scale, structured scat monitoring program. Therefore, it is likely that other forms of surveillance, in conjunction with scat monitoring, will be necessary to demonstrate that foxes are absent from Tasmania with high confidence. PMID- 29321910 TI - Why does oriental arborvitae grow better when mixed with black locust: Insight on nutrient cycling? AB - To identify why tree growth differs by afforestation type is a matter of prime concern in forestry. A study was conducted to determine why oriental arborvitae (Platycladus orientalis) grows better in the presence of black locust (Robinia pseudoacacia) than in monoculture. Different types of stands (i.e., monocultures and mixture of black locust and oriental arborvitae, and native grassland as a control) were selected in the Loess Plateau, China. The height and diameter at breast height of each tree species were measured, and soil, shoot, and root samples were sampled. The arbuscular mycorrhizal (AM) attributes, shoot and root nutrient status, height and diameter of black locust were not influenced by the presence of oriental arborvitae. For oriental arborvitae, however, growing in mixture increased height and diameter and reduced shoot Mn, Ca, and Mg contents, AM fungal spore density, and colonization rate. Major changes in soil properties also occurred, primarily in soil water, NO 3-N, and available K levels and in soil enzyme activity. The increase in soil water, N, and K availability in the presence of black locust stimulated oriental arborvitae growth, and black locust in the mixed stand seems to suppress the development of AM symbiosis in oriental arborvitae roots, especially the production of AM fungal spores and vesicles, through improving soil water and N levels, thus freeing up carbon to fuel plant growth. Overall, the presence of black locust favored oriental arborvitae growth directly by improving soil water and fertility and indirectly by repressing AM symbiosis in oriental arborvitae roots. PMID- 29321911 TI - Low genetic variation of invasive Fallopia spp. in their northernmost European distribution range. AB - Knowledge about the reproduction strategies of invasive species is fundamental for effective control. The invasive Fallopia taxa (Japanese knotweed s.l.) reproduce mainly clonally in Europe, and preventing spread of vegetative fragments is the most important control measure. However, high levels of genetic variation within the hybrid F. * bohemica indicate that hybridization and seed dispersal could be important. In Norway in northern Europe, it is assumed that these taxa do not reproduce sexually due to low temperatures in the autumn when the plants are flowering. The main objective of this study was to examine the genetic variation of invasive Fallopia taxa in selected areas in Norway in order to evaluate whether the taxa may reproduce by seeds in their most northerly distribution range in Europe. Fallopia stands from different localities in Norway were analyzed with respect to prevalence of taxa, and genetic variation within and between taxa was studied using amplified fragment length polymorphism (AFLP). Taxonomic identification based on morphology corresponded with identification based on simple sequence repeats (SSR) and DNA ploidy levels (8* F. japonica, 6* F. * bohemica and 4* F. sachalinensis). No genetic variation within F. japonica was detected. All F. * bohemica samples belonged to a single AFLP genotype, but one sample had a different SSR genotype. Two SSR genotypes of F. sachalinensis were also detected. Extremely low genetic variation within the invasive Fallopia taxa indicates that these taxa do not reproduce sexually in the region, suggesting that control efforts can be focused on preventing clonal spread. Climate warming may increase sexual reproduction of invasive Fallopia taxa in northern regions. The hermaphrodite F. * bohemica is a potential pollen source for the male-sterile parental species. Targeted eradication of the hybrid can therefore reduce the risk of increased sexual reproduction under future warmer climate. PMID- 29321912 TI - Why georeferencing matters: Introducing a practical protocol to prepare species occurrence records for spatial analysis. AB - Species Distribution Models (SDMs) are widely used to understand environmental controls on species' ranges and to forecast species range shifts in response to climatic changes. The quality of input data is crucial determinant of the model's accuracy. While museum records can be useful sources of presence data for many species, they do not always include accurate geographic coordinates. Therefore, actual locations must be verified through the process of georeferencing. We present a practical, standardized manual georeferencing method (the Spatial Analysis Georeferencing Accuracy (SAGA) protocol) to classify the spatial resolution of museum records specifically for building improved SDMs. We used the high-elevation plant Saxifraga austromontana Wiegand (Saxifragaceae) as a case study to test the effect of using this protocol when developing an SDM. In MAXENT, we generated and compared SDMs using a comprehensive occurrence dataset that had undergone three different levels of georeferencing: (1) trained using all publicly available herbarium records of the species, minus outliers (2) trained using herbarium records claimed to be previously georeferenced, and (3) trained using herbarium records that we have manually georeferenced to a <= 1-km resolution using the SAGA protocol. Model predictions of suitable habitat for S. austromontana differed greatly depending on georeferencing level. The SDMs fitted with presence locations georeferenced using SAGA outperformed all others. Differences among models were exacerbated for future distribution predictions. Under rapid climate change, accurately forecasting the response of species becomes increasingly important. Failure to georeference location data and cull inaccurate samples leads to erroneous model output, limiting the utility of spatial analyses. We present a simple, standardized georeferencing method to be adopted by curators, ecologists, and modelers to improve the geographic accuracy of museum records and SDM predictions. PMID- 29321913 TI - Egg size and emergence timing affect morphology and behavior in juvenile Chinook Salmon, Oncorhynchus tshawytscha. AB - Variation in early life history traits often leads to differentially expressed morphological and behavioral phenotypes. We investigated whether variation in egg size and emergence timing influence subsequent morphology associated with migration timing in juvenile spring Chinook Salmon, Oncorhynchus tshawytscha. Based on evidence for a positive relationship between growth rate and migration timing, we predicted that fish from small eggs and fish that emerged earlier would have similar morphology to fall migrants, while fish from large eggs and individuals that emerged later would be more similar to older spring yearling migrants. We sorted eyed embryos within females into two size categories: small and large. We collected early and late-emerging juveniles from each egg size category. We used landmark-based geometric morphometrics and found that egg size appears to drive morphological differences. Egg size shows evidence for an absolute rather than relative effect on body morphology. Fish from small eggs were morphologically more similar to fall migrants, while fish from large eggs were morphologically more similar to older spring yearling migrants. Previous research has shown that the body morphology of fish that prefer the surface or bottom location in a tank soon after emergence also correlates with the morphological variations between wild fall and spring migrants, respectively. We found that late-emerging fish spent more time near the surface. Our study shows that subtle differences in early life history characteristics may correlate with a diversity of future phenotypes. PMID- 29321914 TI - A hierarchical spatiotemporal analog forecasting model for count data. AB - Analog forecasting is a mechanism-free nonlinear method that forecasts a system forward in time by examining how past states deemed similar to the current state moved forward. Previous applications of analog forecasting has been successful at producing robust forecasts for a variety of ecological and physical processes, but it has typically been presented in an empirical or heuristic procedure, rather than as a formal statistical model. The methodology presented here extends the model-based analog method of McDermott and Wikle (Environmetrics, 27, 2016, 70) by placing analog forecasting within a fully hierarchical statistical framework that can accommodate count observations. Using a Bayesian approach, the hierarchical analog model is able to quantify rigorously the uncertainty associated with forecasts. Forecasting waterfowl settling patterns in the northwestern United States and Canada is conducted by applying the hierarchical analog model to a breeding population survey dataset. Sea surface temperature (SST) in the Pacific Ocean is used to help identify potential analogs for the waterfowl settling patterns. PMID- 29321915 TI - Comparative genetics of invasive populations of walnut aphid, Chromaphis juglandicola, and its introduced parasitoid, Trioxys pallidus, in California. AB - Coevolution may be an important component of the sustainability of importation biological control, but how frequently introduced natural enemies coevolve with their target pests is unclear. Here we explore whether comparative population genetics of the invasive walnut aphid, Chromaphis juglandicola, and its introduced parasitoid, Trioxys pallidus, provide insights into the localized breakdown of biological control services in walnut orchards in California. We found that sampled populations of C. juglandicola exhibited higher estimates of genetic differentiation (FST) than co-occurring populations of T. pallidus. In contrast, estimates of both the inbreeding coefficient (GIS) and contemporary gene flow were higher for T. pallidus than for C. juglandicola. We also found evidence of reciprocal outlier loci in some locations, but none showed significant signatures of selection. Synthesis and applications. Understanding the importance of coevolutionary interactions for the sustainability of biological control remains an important and understudied component of biological control research. Given the observed differences in gene flow and genetic differentiation among populations of T. pallidus and C. juglandicola, we suspect that temporary local disruption of biological control services may occur more frequently than expected while remaining stable at broader regional scales. Further research that combines genomewide single nucleotide polymorphism genotyping with measurements of phenotypic traits is needed to provide more conclusive evidence of whether the occurrence of outlier loci that display significant signatures of selection can be interpreted as evidence of the presence of a geographic mosaic of coevolution in this system. PMID- 29321916 TI - A spatiotemporal analysis of acoustic interactions between great reed warblers (Acrocephalus arundinaceus) using microphone arrays and robot audition software HARK. AB - Acoustic interactions are important for understanding intra- and interspecific communication in songbird communities from the viewpoint of soundscape ecology. It has been suggested that birds may divide up sound space to increase communication efficiency in such a manner that they tend to avoid overlap with other birds when they sing. We are interested in clarifying the dynamics underlying the process as an example of complex systems based on short-term behavioral plasticity. However, it is very problematic to manually collect spatiotemporal patterns of acoustic events in natural habitats using data derived from a standard single-channel recording of several species singing simultaneously. Our purpose here was to investigate fine-scale spatiotemporal acoustic interactions of the great reed warbler. We surveyed spatial and temporal patterns of several vocalizing color-banded great reed warblers (Acrocephalus arundinaceus) using an open-source software for robot audition HARK (Honda Research Institute Japan Audition for Robots with Kyoto University) and three new 16-channel, stand-alone, and water-resistant microphone arrays, named DACHO spread out in the bird's habitat. We first show that our system estimated the location of two color-banded individuals' song posts with mean error distance of 5.5 +/- 4.5 m from the location of observed song posts. We then evaluated the temporal localization accuracy of the songs by comparing the duration of localized songs around the song posts with those annotated by human observers, with an accuracy score of average 0.89 for one bird that stayed at one song post. We further found significant temporal overlap avoidance and an asymmetric relationship between songs of the two singing individuals, using transfer entropy. We believe that our system and analytical approach contribute to a better understanding of fine-scale acoustic interactions in time and space in bird communities. PMID- 29321917 TI - Corrigendum. AB - [This corrects the article DOI: 10.1002/ece3.1879.]. PMID- 29321919 TI - Addressing the recruitment shortfall in surgery - How do we inspire the next generation? AB - *Application rates to surgery by medical students have declined in recent years.*More hands-on experience, information and mentorship is needed in medical schools.*Within surgery, gendered stereotyping of roles and environments must be challenged.*Reform of the current systems of outcome reporting is necessary. PMID- 29321918 TI - Reproductive management in dairy cows - the future. AB - Background: Drivers of change in dairy herd health management include the significant increase in herd/farm size, quota removal (within Europe) and the increase in technologies to aid in dairy cow reproductive management. Main body: There are a number of key areas for improving fertility management these include: i) handling of substantial volumes of data, ii) genetic selection (including improved phenotypes for use in breeding programmes), iii) nutritional management (including transition cow management), iv) control of infectious disease, v) reproductive management (and automated systems to improve reproductive management), vi) ovulation / oestrous synchronisation, vii) rapid diagnostics of reproductive status, and viii) management of male fertility. This review covers the current status and future outlook of many of these key factors that contribute to dairy cow herd health and reproductive performance. Conclusions: In addition to improvements in genetic trends for fertility, numerous other future developments are likely in the near future. These include: i) development of new and novel fertility phenotypes that may be measurable in milk; ii) specific fertility genomic markers; iii) earlier and rapid pregnancy detection; iv) increased use of activity monitors; v) improved breeding protocols; vi) automated inline sensors for relevant phenotypes that become more affordable for farmers; and vii) capturing and mining multiple sources of "Big Data" available to dairy farmers. These should facilitate improved performance, health and fertility of dairy cows in the future. PMID- 29321920 TI - Impact of medial-to-lateral vs lateral-to-medial approach on short-term and cancer-related outcomes in laparoscopic colorectal surgery: A retrospective cohort study. AB - Background: Laparoscopic surgery is the favoured method of colorectal cancer resections. It is surgeon expertise and discretion to choose whether to mobilize colon lateral-to-medial or medial-to-lateral. We aim to identify the advantage of one approach over the other in short-term and cancerrelated outcomes. Methods: A retrospective review of a prospectively maintained database of all laparoscopic colorectal resections with curative-intent, in a single unit, from March 2013 to October 2014. Data was collected on patient demographics, method of laparoscopic mobilisation, operating time, length-of-stay, post-operative complications, clearance of circumferential resection margins lymph node harvest and follow-up. Results: 137 patients with comparable patient demographics had laparoscopic colorectal cancer resection. 76 (60.3%) male and 50 (39.7%) female patients. 58(46.0%) of resections were performed using medial-to-lateral approach, while 68(54.0%) lateral-to-medial. Lateral group had on average 14(0-38) lymph nodes with specimen compared to 17 (6-45) in medial group. There was a statistically significant difference in the major complication rate (Clavien-Dindo IV) between the groups with 1(1.7%) in the medial-to-lateral group compared to 7 (10.2%) in the lateral-to-medial group, (p .035). Patients in the medial-to-lateral group had median length-of-stay of 7 days (range 2-55) compared to 7 days (range 2-75) in the lateral-to-medial group. There was no statistically significant difference in survival between both groups up-to 1334 days p=.413. Conclusion: Our study shows that mobilising the colon medially in laparoscopic colorectal cancer resection increases the lymph node harvest, gives comparable CRM clearance, similar length of hospital stay and complications. It makes no statistically significant difference in the overall patient survival. PMID- 29321921 TI - Farming, Q fever and public health: agricultural practices and beyond. AB - Since the Neolithic period, humans have domesticated herbivores to have food readily at hand. The cohabitation with animals brought various advantages that drastically changed the human lifestyle but simultaneously led to the emergence of new epidemics. The majority of human pathogens known so far are zoonotic diseases and the development of both agricultural practices and human activities have provided new dynamics for transmission. This article provides a general overview of some factors that influence the epidemic potential of a zoonotic disease, Q fever. As an example of a disease where the interaction between the environment, animal (domestic or wildlife) and human populations determines the likelihood of the epidemic potential, the management of infection due to the Q fever agent, Coxiella burnetii, provides an interesting model for the application of the holistic One Health approach. PMID- 29321922 TI - Longitudinal pharmacoepidemiological and health services research for substance users in treatment: protocol of the Belgian TDI-IMA linkage. AB - Background: Not much is known about the health seeking behavior of people with substance use disorders before they enter specialized treatment and afterwards. This paper explains in detail the protocol that has been followed to establish the Belgian TDI-IMA-database, which is linking two separate databases: the Treatment Demand Indicator (TDI) and the database of the Intermutualistic Agency (IMA). The Treatment Demand Indicator is measuring incidence of people with substance use disorders entering drug treatment. The IMA-database covers data, collected in the framework of the compulsory Belgian health care and benefits insurance program, on reimbursed medication and the use of reimbursed health services. The linkage results in pharmacoepidemiological and health service data for people who were in treatment for substance use disorders and for a group of comparators. Methods: The TDI-database was linked to the IMA-database for the period between 01/01/2008 and 31/12/2017, based on the national identification number of patients who have been in alcohol or drug treatment between 01/01/2011 and 31/12/2014. Through this linkage, pharmacoepidemiological and health service data became available for at least 3 years before the first registered episode in the TDI-database till at least 3 years after the first episode. For each person in TDI four comparators, who were not in specialized treatment, were matched on age, sex and place of residence. Discussion: The TDI-IMA-database allows for an analysis of health seeking behavior and health care pathways of people before and after they entered specialized alcohol and drug treatment. The presented protocol could be used in other European countries to establish a linkage between existing health databases. This will allow for a better understanding of the health care needs of patients with substance use disorders. PMID- 29321923 TI - Idiopathic pulmonary vein thrombosis? AB - Idiopathic pulmonary vein thrombosis (PVT) is a rare disease which is likely under-diagnosed because of nebulous presentations. Accurate diagnosis is essential to prevent complications. PMID- 29321924 TI - Lung Mycobacterium avium developed after removing an acupuncture needle from the lung. AB - Acupuncture needles can cause non-tuberculosis mycobacteria (NTM) infection on the skin, but there are no reports that acupuncture needles inserted into the lung have caused lung NTM infection. A 63-year-old woman, who underwent removal of a broken acupuncture needle inserted into the lung nine years ago, was admitted with nodules in the right lung. The shadow was positioned where the needle had existed. Partial lung resection of the right lower lobe was performed, and the resected area showed caseous necrosis histopathologically. Furthermore, Mycobacterium avium was cultured from the specimen. When abnormal lung shadows are located where a resected foreign body appeared, NTM infection should be considered. PMID- 29321925 TI - Lupus pneumonitis presenting with high titre of anti-Ro antibody. AB - Lupus pneumonitis carries high mortality and is a rare manifestation of systemic lupus erythematosus (SLE). However, it is difficult to diagnose and is often mistaken as pneumonia, alveolar haemorrhage, or organizing pneumonia. Previous studies demonstrated that serum anti-Ro antibodies are elevated more frequently in SLE patients with pneumonitis than in those without. We report a 21-year-old female who was newly diagnosed as having SLE with nephritis and who suddenly developed right lung opacity and rapidly progressed to severe hypoxaemia despite the use of broad-spectrum antibiotics. The serum titre of anti-Ro antibody was greater than 240 U/mL. She underwent lung biopsy and lupus pneumonitis was confirmed by the pathological findings. Subsequently, she showed a favourable response to plasma exchange, steroid pulse therapy, and mycophenolate mofetil (MMF) treatment. For SLE patients with pulmonary infiltrates, high degree of clinical suspicion of lupus pneumonitis is required and measurement of serum anti Ro antibody may help to make the diagnosis. PMID- 29321926 TI - Lung injury associated with electronic cigarettes inhalation diagnosed by transbronchial lung biopsy. AB - A 46-year-old healthy man developed respiratory distress, night sweats, fever, and weight loss after using electronic cigarettes (e-cigs) for approximately 1 month. He presented to the hospital when the symptoms worsened 2 months after onset. The findings of bronchoalveolar lavage (BAL) fluid examination and the following transbronchial lung biopsy examination led to the diagnosis of acute alveolitis: intra-alveolar fibrosis accompanied with exudate containing abundant lipid-laden macrophages, eosinophils, and neutrophils. Eventually, e-cig-induced acute lung injury was diagnosed. The symptoms were rapidly alleviated upon e-cig use termination and methylprednisolone pulse therapy, and no subsequent recurrence was observed. There have been only a few reported cases of e-cig induced lung injury. In e-cig users presenting with atypical pneumonia, close examination by BAL and biopsy should be performed to verify the presence or absence of lipid-laden macrophages. PMID- 29321927 TI - Pulmonary nocardiosis in a patient with idiopathic CD4 T-lymphocytopenia. AB - Idiopathic CD4 T-lymphocytopenia (ICL) is a rare immunodeficiency characterized by low CD4 T-lymphocyte count, which usually manifests with opportunistic infections. Nocardia as an opportunistic pathogen infecting patients with this condition has rarely been reported. Here, we describe the case of a 46-year-old male who presented with lung mass and respiratory and systemic symptoms and was eventually diagnosed with pulmonary nocardiosis. A workup for predisposing immunodeficiencies suggested a picture of ICL. This case illustrates the importance of considering ICL as a possible predisposing condition when an otherwise healthy individual presents with pulmonary nocardiosis. PMID- 29321928 TI - Lung cancer development in the patient with granulomatosis with polyangiitis during long term treatment with cyclophosphamide: first documented case. AB - A 65-year-old man was diagnosed with granulomatosis with polyangiitis (GPA) at the age of 47, when cytoplasmic anti-neutrophil cytoplasmic antibody (C-ANCA) serology was positive, and he had multiple nodular shadows in both lungs. He had been treated with prednisolone, cyclophosphamide (CPA) and plasma exchange. At the age of 64, a nodular shadow was newly detected in the right lower lung field and serum tumour marker increased. Subsequent positron emission tomography/computed tomography scan demonstrated accumulations of fluorodexyglucose (FDG) in the same area, mediastinum lymph nodes, thoracic wall, right iliac bone, and right retroperitoneum. The diagnosis of squamous cell lung cancer cT2bN2M1b Stage4 was made with endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA). There are no reports of cases that lung cancer has developed with GPA during the long-term treatment with CPA. We suggest that in such patients, the differential diagnosis should include not only the relapse of GPA, but also the rare possibility of development of carcinomas. PMID- 29321929 TI - Pleuritis associated with primary Sjogren syndrome. AB - We herein present a case of a 71-year-old woman with primary Sjogren's syndrome (SjS), who developed bilateral pleural effusion and ground glass opacity during treatment with low-dose prednisolone. The pleural effusion and bronchoalveolar lavage fluid revealed elevation of lymphocytes. Thoracoscopic pleural biopsy showed infiltration of lymphocytes with no evidence of other diseases, confirming SjS-related pleuritis. Therefore, we initiated 20 mg prednisolone and pleural effusion was rapidly resolved. Our results indicate that SjS can be rarely complicated with pleuritis. In addition, thoracoscopic pleural biopsy and a rapid response to steroid treatment would be helpful for diagnosing SjS-related pleuritis. PMID- 29321930 TI - A case of pulmonary cyst and pneumothorax after bronchial thermoplasty. AB - Bronchial thermoplasty (BT) is a bronchoscopic treatment for severe asthma using thermal energy to reduce smooth muscle in the bronchial wall. A 47-year-old man underwent BT for uncontrolled severe asthma despite maximal pharmacological treatment. After a third procedure, he experienced hypoxaemia because of complete bilateral upper lobe atelectasis. A pulmonary cyst suddenly emerged in to the right middle lobe, associated with the pneumothorax on postoperative day 6, and a chest drainage tube was inserted. As atelectasis of the right upper lung suddenly improved on postoperative day 12, pneumothorax and the cyst improved. Excess stress on the middle lobe due to upper lobe collapse, and check valve due to airway oedema and phlegm, might be related to pulmonary cyst formation. Tissue fragility related to systemic steroid usage and pressure load during pulmonary function testing might influence the occurrence of pneumothorax. Severe adverse events under complete atelectasis after BT require careful attention. PMID- 29321931 TI - Novel hybrid cryo-radial method: an emerging alternative to CT-guided biopsy in suspected lung cancer. A prospective case series and description of technique. AB - In diagnosing peripheral pulmonary lesions (PPL), radial endobronchial ultrasound (R-EBUS) is emerging as a safer method in comparison to CT-guided biopsy. Despite the better safety profile, the yield of R-EBUS remains lower (73%) than CT-guided biopsy (90%) due to the smaller size of samples. We adopted a hybrid method by adding cryobiopsy via the R-EBUS Guide Sheath (GS) to produce larger, non-crushed samples to improve diagnostic capability and enhance molecular testing. We report six prospective patients who underwent this procedure in our institution. R-EBUS samples were obtained via conventional sampling methods (needle aspiration, forceps biopsy, and cytology brush), followed by a cryobiopsy. An endobronchial blocker was placed near the planned area of biopsy in advance and inflated post biopsy to minimize the risk of bleeding in all patients. A chest X-ray was performed 1 h post-procedure. All the PPLs were visualized with R-EBUS. The mean diameter of cryobiopsy samples was twice the size of forceps biopsy samples. In four patients, cryobiopsy samples were superior in size and the number of malignant cells per high power filed and was the preferred sample selected for mutation analysis and molecular testing. There was no pneumothorax or significant bleeding to report. Cryobiopsy samples were consistently larger and were the preferred samples for molecular testing, with an increase in the diagnostic yield and reduction in the need for repeat procedures, without hindering the marked safety profile of R-EBUS. Using an endobronchial blocker improves the safety of this procedure. PMID- 29321932 TI - Acute onset of ulcerative colitis during chemoradiotherapy for anaplastic lymphoma kinase-positive lung adenocarcinoma. AB - We report a case of acute onset of ulcerative colitis (UC) during chemoradiotherapy in a patient with anaplastic lymphoma kinase (ALK)-positive lung adenocarcinoma. A 46-year-old male patient with an abnormal chest shadow was referred to our hospital. He was diagnosed with lung adenocarcinoma, clinical stage T1aN3M0 and stage IIIB. Concurrent chemoradiotherapy was selected for his initial therapy. After two cycles of cisplatin and vinorelbine administration, he experienced persistent diarrhoea and anorexia. Findings of the colonoscopy revealed a pancolitis type of UC. After discontinuation of chemotherapy, oral administration of mesalazine was initiated. The development of UC during chemotherapy is very rare and only a few case reports have been published. Although adverse events are rare, it is very important to assess the colitis precisely by performing a colonoscopy when protracted abdominal pain is experienced by the patient, along with diarrhoea or bloody stool during chemotherapy. PMID- 29321933 TI - Acute progression of aspergillosis in a patient with lung cancer receiving nivolumab. AB - A 65-year-old man with chronic progressive pulmonary aspergillosis (CPPA) was admitted for the treatment of lung adenocarcinoma while receiving an immune checkpoint inhibitor, nivolumab. The tumour responded well to the therapy, but the cavity of CPPA became large in contrast to the tumour after 20 courses of therapy. He was diagnosed as having exacerbation of CPPA and successfully and concurrently treated with an antifungal agent and nivolumab. Since there was absence of obvious immunosuppression and the presence of a drastic effect on tumour remission during nivolumab therapy, this phenomenon suggested that the trigger of CPPA progression was dependent not on immunosuppression but on a hyperreaction to microorganisms, which was similar to the immune reconstitution inflammatory syndrome caused by nivolumab. This was a thought-provoking case in which the immune checkpoint inhibitor had a paradoxical effect for the tumour and infection. PMID- 29321934 TI - An elderly woman with a mediastinal granulosa cell tumour: a rare presentation. AB - Mediastinal lesions occur in a wide variety of clinical conditions. Metastatic granulosa cell tumour (GCT) in the mediastinum is a rare occurrence. We report a case of a woman who had a metastatic (GCT) in her mediastinum 40 years after treatment of the initial neoplasm. Surgical resection of the mediastinal mass revealed a low-grade epithelioid neoplasm with coffee bean-shaped nuclei and immunohistochemical stains that were consistent with metastatic GCT. PMID- 29321935 TI - Desquamative interstitial pneumonia complicated by diffuse alveolar haemorrhage. AB - We report a rare case of desquamative interstitial pneumonia (DIP) with diffuse alveolar haemorrhage (DAH). A 56-year-old man diagnosed with DIP by surgical lung biopsy 2 years ago was admitted to our hospital because of severe acute respiratory failure. The DIP had progressed despite smoking cessation. On admission, the patient appeared extremely ill, and physical examination revealed respiratory distress. The patient required mechanical ventilation. High resolution computed tomography showed diffuse ground glass opacity in both lungs. The bronchoalveolar lavage fluid was bloody, and numerous haemosiderin-laden alveolar macrophages were detected. Pulse steroid therapy followed by oral prednisolone immediately relieved the respiratory failure and improved the long term control of the DIP. Paired sera tests confirmed the diagnosis of influenza A/H3N2 virus infection, which was the cause of the DAH. Chronically progressive DIP with acute respiratory failure due to DAH was successfully treated by steroid therapy. PMID- 29321936 TI - Low-voltage electricity-induced lung injury. AB - We report a case of bilateral pulmonary infiltrates and haemoptysis following low voltage electricity exposure in an agricultural worker. A 58-year-old man standing in water reached for an electric watering machine and sustained an exposure to 220 V circuit for an uncertain duration. The electricity was turned off by another worker, and the patient was asymptomatic for the next 10 h until he developed haemoptysis. A chest radiograph demonstrated bilateral infiltrates, and chest computed tomography (CT) revealed ground-glass opacities with interstitial thickening. Evaluations, including electrocardiogram, serum troponin, N-terminal pro-B-type natriuretic peptide (NT-pro BNP), coagulation studies, and echocardiogram, found no abnormality. The patient was treated for suspected electricity-induced lung injury and bleeding with tranexamic acid and for rhabdomyolysis with volume resuscitation. He recovered with complete resolution of chest radiograph abnormalities by Day 7. This is the first reported case of bilateral lung oedema and/or injury after electricity exposure without cardiac arrest. PMID- 29321937 TI - Marijuana "bong" pseudomonas lung infection: a detrimental recreational experience. AB - The use of Cannabis sativa, also known as marijuana, is believed to have dated back to thousands of years B.C. More than 200 decades later, it remains a popular recreational psychoactive substance that can be smoked through a water pipe. We report a case of marijuana smoking via a "bong" device, which has resulted in severe Pseudomonas aeruginosa necrotizing pneumonia treated with conservative medical therapy. This case highlights the importance of recognizing that life threatening pneumonia can potentially be linked to marijuana and "bong" usage. Complicated cases should be considered for early surgical intervention. PMID- 29321939 TI - Isolation of Rickettsia amblyommatis in HUVEC line. AB - Rickettsia amblyommatis, formerly named Rickettsia amblyommii and 'Candidatus Rickettsia amblyommii' is an intracellular bacterium belonging to the spotted fever group Rickettsia. It is highly prevalent in Amblyomma americanum and in other Amblyomma spp. throughout the Western Hemisphere. R. amblyommatis has been cultivated in chicken fibroblast, primary embryonated chicken eggs, Vero cells and arthropod-derived cells. Because of the affinity of rickettsiae to invade vascular endothelial cells, we tried to isolate R. amblyommatis from a nymph of Amblyomma cajennense s.l. collected in Saltillo (Coahulia, Mexico) using human umbilical vein endothelial cells (HUVEC). One tick half was analysed by ompA PCR and was found to be positive for R. amblyommatis. The other half was selected for in vitro culture of Rickettsia spp. It was triturated in 1 mL of endothelial cell growth medium with 1% antibiotic-antimycotic solution, and the homogenate was inoculated into a HUVEC line. Culture was maintained at 33 degrees C in endothelial cell growth medium plus 2 mM l-glutamine and 2% fetal calf serum, with 5% CO2. The medium was changed weekly. Culture was checked by Gimenez stain for Rickettsia-like intracellular organisms. After 48 days of incubation, Rickettsia-like organisms were observed in HUVEC. PCR assays and sequencing of ompA gene in the culture suspension showed 100% identity with R. amblyommatis. This isolate was successfully established in HUVEC, and it has been deposited in the collection of the Center of Rickettsioses and Arthropod-Borne Diseases, Infectious Diseases Department, Hospital San Pedro-Center of Biomedical Research from La Rioja, Logrono, Spain. The HUVEC line is a useful tool for the isolation of R. amblyommatis. PMID- 29321940 TI - 'Lactomassilus timonensis,' a new anaerobic bacterial species isolated from the milk of a healthy African mother. AB - We here report the main characteristics of a new anaerobic bacterial genus and species 'Lactomassilus timonensis,' strain Marseille-P4641T (CSUR = P4641), isolated by microbial culturomics from the milk of a 35-year-old healthy lactating mother from Mali. PMID- 29321938 TI - Noncontiguous finished genome sequence and description of Mediterranea massiliensis gen. nov., sp. nov., a new member of the Bacteroidaceae family isolated from human colon. AB - Strain Marseille-P2645T was isolated in a colon sample from a Frenchwoman who underwent a colonoscopy. Bacterial cells were Gram negative, non-spore forming, mobile and strictly anaerobic. The genome of strain Marseille-P2645T is 3 950 441 bp long and contains 3374 protein-coding genes. The DNA G+C content is of 51.66 mol%. Strain Marseille-P2645T exhibited a 92.9% sequence similarity with Bacteroides helcogenes strain P36-108T (GenBank accession no. CP002352), the phylogenetically closest species with standing in nomenclature. Strain Marseille P2645T (= CSUR P2645 = DSM 103034) is therefore a candidate as a type species of a new genus belonging to the Bacteroidaceae family, for which the name of Mediterranea massiliensis gen. nov., sp. nov., is proposed. PMID- 29321941 TI - Hygienic measures during animal transport to abattoirs - a status quo analysis of the current cleaning and disinfection of animal transporters in Germany. AB - Background: The process of cleaning and disinfection of animal transport vehicles after unloading animals at the abattoir is a critical control point regarding proper hygiene. It is an important step regarding the biosecurity. In the present study, a status quo analysis of the currently performed cleaning and disinfection measures of animal transport vehicles was carried out at the vehicle washing facilities of five different industrial abattoirs in Germany. For this purpose, a checklist was developed and validated to assess the washing procedure of transport vehicles in a standardised way. The evaluated phases of cleaning included the evaluation criteria "length of time per used floor", "visual cleaning success" and the "hygienic awareness of the driver". During disinfection, attention was paid to the internal and external surfaces of the transporter and to the methods used to disinfect them. In addition, the technical and structural equipment of the five different washing facilities were recorded using a questionnaire and compared to the legal regulations, respectively. At each location, approximately 150 vehicles of all delivery types (transport vehicles owned by the abattoir, external delivery companies and vehicles owned by the supplying farmers) were inspected so that in total a number of more than 750 vehicles were included in this study. The aim was to develop abattoir specific, as well as generally applicable intervention measures and to generate "standard operation procedures" (SOP's) for the cleaning and disinfection of animal transporters. Results: At two out of five locations vehicles have left the abattoir without cleaning and disinfection. In 31-97% of all vehicles, only a cleaning of the vehicle was carried out, a subsequent disinfection did not take place. A cleaning followed by disinfecting took place in only 3-59% of all vehicles. Conclusion: The results indicate a considerable need for improvement and standardisation in this relevant field of disease prevention. PMID- 29321942 TI - Preventing stress-related ill health among newly registered nurses by supporting engagement in proactive behaviors: development and feasibility testing of a behavior change intervention. AB - Background: Transitioning into a new professional role is a stressful experience with consequences for mental and physical health, job satisfaction, organizational commitment, and turnover. New registered nurses seem to be at particular risk of developing stress-related ill health during their first years in the profession. Previous research indicates that engagement in proactive behaviors may reduce this risk. Methods: With the work presented in this paper, we aimed to test the feasibility of conducting an evaluation of the effect of a behavior change intervention to prevent stress-related ill health among new registered nurses by supporting their engagement in proactive behaviors. Feasibility objectives included recruitment, randomization, data collection and analysis, participation, acceptability, and deliverability.We tested the feasibility of evaluating the effect of the intervention as part of a transition to-practice program for new registered nurses using a non-randomized design with one condition. The trial included a sample of 65 new registered nurses who had been working for 6 months or less. Results: The feasibility of conducting a full scale effect evaluation was confirmed for recruitment, data collection and analysis, participation, and acceptability. It was not possible to randomize participants, but analyses of between-group differences revealed no selection bias. The time of the intervention will need to be extended to ensure the deliverability. Conclusion: With some adjustments in the study design, it is feasible to evaluate the effect of a behavior change intervention to support new registered nurses' engagement in proactive behaviors during their transition into the new profession as part of a transition-to-practice program for new nurses. PMID- 29321943 TI - Tenecteplase compared with streptokinase and heparin in the treatment of pulmonary embolism: an observational study. AB - Background: Thrombolytics are recommended in high risk patients with massive pulmonary embolism (PE). However, clinical practice seems to be far different and questions related to its utility in less severely affected patients remain the subject of investigation. The objective of this observational study was to compare the efficacy and safety of tenecteplase with streptokinase and heparin. Method: A total of 103 patients (tenecteplase: 62, streptokinase: 17, heparin: 24) diagnosed with PE (massive: 33 [32.04%], submassive: 50 [48.54%], and minor: 20 [19.42%]) were included. Results: Mean age was 50.04 years and major risk factors were immobilization due to hospitalization, history of deep vein thrombosis, and diabetes. Common clinical symptoms of dyspnoea, right ventricular dysfunction, and cough were found in 94.17%, 81.55%, and 77.67% patients, respectively. Between treatment and day 7, death occurred in 4.84%, 5.88%, and 8.33% patients in the tenecteplase, streptokinase, and heparin groups, respectively. The differences among treatment groups were non-significant (p > .05). All treatments have demonstrated significant alleviation of dyspnoea and heart rate (p < .05). Significant (p < .05) increase in oxygen saturation was seen and it was markedly higher in the tenecteplase-treated patients compared with the streptokinase- and heparin-treated patients. By day 7, there was 100% resolution of right bundle branch block only in the tenecteplase group. No intracranial bleeding or fatal bleeding episodes were found in any group. Conclusion: Tenecteplase was found to be effective in patients with PE irrespective of their clinical status and no major adverse events were noted. PMID- 29321944 TI - Myelomeningocele with Unilateral Right Renal Agenesis: A Case Report. AB - Congenital anomalies of the spine may occur with malformations of the central nervous, cardiovascular, gastrointestinal, respiratory, and genitourinary systems. This is a case of myelomeningocele with unilateral right renal agenesis in a newborn. The patient suffered complications of cerebrospinal fluid leak and meningitis, but was successfully treated and discharged on day 86. In this case, unilateral right renal agenesis represented a significant surgical risk because failure of the remaining kidney could result in renal failure. Because congenital anomalies of the spine may be associated with malformations of the genitourinary system, and additional surgeries were necessary in our case following birth, it is very important that the presence of genitourinary malformations be evaluated. PMID- 29321945 TI - Gaze Compensation as a Technique for Improving Hand-Eye Coordination in Prosthetic Vision. AB - Purpose: Shifting the region-of-interest within the input image to compensate for gaze shifts ("gaze compensation") may improve hand-eye coordination in visual prostheses that incorporate an external camera. The present study investigated the effects of eye movement on hand-eye coordination under simulated prosthetic vision (SPV), and measured the coordination benefits of gaze compensation. Methods: Seven healthy-sighted subjects performed a target localization-pointing task under SPV. Three conditions were tested, modeling: retinally stabilized phosphenes (uncompensated); gaze compensation; and no phosphene movement (center fixed). The error in pointing was quantified for each condition. Results: Gaze compensation yielded a significantly smaller pointing error than the uncompensated condition for six of seven subjects, and a similar or smaller pointing error than the center-fixed condition for all subjects (two-way ANOVA, P < 0.05). Pointing error eccentricity and gaze eccentricity were moderately correlated in the uncompensated condition (azimuth: R2 = 0.47; elevation: R2 = 0.51) but not in the gaze-compensated condition (azimuth: R2 = 0.01; elevation: R2 = 0.00). Increased variability in gaze at the time of pointing was correlated with greater reduction in pointing error in the center-fixed condition compared with the uncompensated condition (R2 = 0.64). Conclusions: Eccentric eye position impedes hand-eye coordination in SPV. While limiting eye eccentricity in uncompensated viewing can reduce errors, gaze compensation is effective in improving coordination for subjects unable to maintain fixation. Translational Relevance: The results highlight the present necessity for suppressing eye movement and support the use of gaze compensation to improve hand-eye coordination and localization performance in prosthetic vision. PMID- 29321946 TI - Clinical and Radiologic Considerations for Idiopathic Superior Mesenteric Artery Syndrome. AB - Superior mesenteric artery (SMA) syndrome often occurs in the setting of rapid weight loss and scoliosis corrective spinal surgery. A reduction of fat around the third part of the duodenum can predispose the duodenum to compression and obstruction by the SMA as it emerges from the abdominal aorta. In this report, we describe this underdiagnosed condition in a previously healthy young female presenting with progressive post-prandial emesis, non-specific abdominal pain, and weight loss. A critical review of this disease process is explored to highlight pathology, imaging characteristics, and essential alternative diagnostic considerations. We also discuss potential complications and current treatment strategies. SMA syndrome poses unique diagnostic challenges, and an awareness of its clinical presentation can further improve patient outcomes and avoid potentially life-threatening complications. PMID- 29321947 TI - Portal Vein Thrombosis Due to an Increase in Dose of Testosterone in a Young Man with Klinefelter Syndrome. AB - Klinefelter syndrome (KS) is associated with increased incidence of thrombotic events. Hypofibrinolysis is associated with increased risk of thromboembolism. Although testosterone replacement therapy (TRT) inhibits the hypofibrinolysis, it can still cause thrombosis paradoxically due to increased dose and duration of use. Herein, we present a case of a young male diagnosed with KS who was taking testosterone. The dose was increased to boost the energy levels, and the patient presented with abdominal pain. Computed tomography (CT) of the abdomen showed extensive portal vein thrombosis. He was started on enoxaparin followed by apixaban. Studies need to be done regarding the need for thromboembolism prophylaxis in patients on TRT. PMID- 29321948 TI - Performance of an Annular Closure Device in a 'Real-World', Heterogeneous, At Risk, Lumbar Discectomy Population. AB - Study design/setting Retrospective analysis of single-center registry outcomes data. Objective Assess the utility of an annular closure device (ACD) as an adjunct to limited discectomy for lumbar disc herniation (LDH). Background Recurrent lumbar disc herniation (rLDH) following limited discectomy persists at clinically significant rates, especially in large annular defect (at least 6 mm width) patients. While the etiology of reherniation is often multifactorial, inadequate annular occlusion remains one of the foremost considerations. Accordingly, annular closure has emerged as a promising technique and is the focus of this analysis. Methods This was a retrospective analysis of 171 patients who underwent limited lumbar discectomy with an ACD for LDH. Standardized patient assessment was performed preoperatively, three months postoperatively, and 12 months postoperatively, in addition to self-presented visits. No minimum last follow-up was required for inclusion. Oswestry Disability Index (ODI) and Visual Analog Scale (VAS Leg/Back) pain scores were collected at all visits. Plain radiographs were obtained at all visits, with magnetic resonance imaging (MRI) scans performed annually and/or when patients presented as symptomatic. ACD related complications due to partial or complete mesh detachment from the titanium anchor were reported. All secondary surgical interventions were also reported. The Wilcoxon Rank-sum test was used to compare outcomes and events between sub-groups (p < 0.05). Results Mean last follow-up for all patients was 15 months. Large annular defects were present in 154 patients (90%). Symptomatic reherniations were observed in six patients (3.5%; five were present in the large annular defect subpopulation). All patients demonstrated clinically meaningful improvement in clinical outcome scores at both follow-up intervals. ACD mesh detachment was observed in 15 patients (8.8%; two underwent a subsequent surgical intervention). No symptomatic reherniations were observed in secondary herniation patients compared to six (4.1%) in the primary herniation group (p = 0.60). Conclusions Annular closure with the ACD results in clinically meaningful improvements in both primary and secondary LDH patients, with decreased rates of reherniation in high-risk patients compared to previous discectomy reports. PMID- 29321949 TI - Piercing of the Lumbocostal Ligament by the Subcostal Nerve: A Previously Unreported Case. AB - As lateral approaches gain popularity in lumbar spine surgery, detailed discussions regarding anatomical variations in the innervation of the thoracolumbar region are of increasing importance. Damage to intercostal or subcostal nerves can lead to post-operative complications including regional loss of sensitivity, motor function, or abdominal wall hernias. More specifically, the subcostal nerve has been identified in the literature as one of the more vulnerable structures during such procedures. A clear understanding of the position of the subcostal nerve relative to nearby anatomical structures is therefore important for medical professionals. We herein report a rare anatomical variation in which the subcostal nerve pierces the lumbocostal ligament. PMID- 29321950 TI - Manifestations of Renal Impairment in Fructose-induced Metabolic Syndrome. AB - Introduction International studies show an increased incidence of chronic kidney disease (CKD) in patients with metabolic syndrome (MS). It is assumed that the major components of MS - obesity, insulin resistance, dyslipidemia, and hypertension - are linked to renal damage through the systemic release of several pro-inflammatory mediators, such as uric acid (UA), C-reactive protein (CRP), and generalized oxidative stress. The aim of the present study was to investigate the extent of kidney impairment and manifestations of dysfunction in rats with fructose-induced MS. Methods We used a model of high-fructose diet in male Wistar rats with 35% glucose-fructose corn syrup in drinking water over a duration of 16 weeks. The experimental animals were divided into two groups: control and high fructose drinking (HFD). Serum samples were obtained from both groups for laboratory study, and the kidneys were extracted for observation via light microscopy examination. Results All HFD rats developed obesity, hyperglycemia, hypertriglyceridemia, increased levels of CRP and UA (when compared to the control group), and oxidative stress with high levels of malondialdehyde and low levels of reduced glutathione. The kidneys of the HFD group revealed a significant increase in kidney weight in the absence of evidence of renal dysfunction and electrolyte disturbances. Under light microscopy, the kidneys of the HFD group revealed amyloid deposits in Kimmelstiel-Wilson-like nodules and the walls of the large caliber blood vessels, early-stage atherosclerosis with visible ruptures and scarring, hydropic change (vacuolar degeneration) in the epithelial cells covering the proximal tubules, and increased eosinophilia in the distant tubules when compared to the control group. Conclusion Under the conditions of a fructose-induced metabolic syndrome, high serum UA and CRP correlate to the development of early renal disorders without a clinical manifestation of renal dysfunction. These phenomena are of particular importance for assessing the risk of developing future CKD. PMID- 29321951 TI - Utility of the Phenacyl Protecting Group in Traceless Protein Semisynthesis through Ligation-Desulfurization Chemistry. AB - Semisynthesis of proteins via expressed protein ligation is a widely applicable method, even more so because of the possibility of ligation at non-cysteine sites using beta-mercapto amino acids that can be converted to the corresponding native amino acids by desulfurization. A drawback of this ligation- desulfurization approach is the removal of any unprotected native cysteine residues within the ligated protein segments. Here, we show that the phenacyl (PAc) moiety can be successfully used to protect cysteines within recombinantly generated protein segments. As such, this group was selectively appended onto cysteine side chains within bacterially expressed polypeptides following intein cleavage, which reveals a rather sensitive thioester at the C-terminus. The PAc group proved to be compatible with native chemical ligation, radical desulfurization, and reverse phase HPLC conditions, and was smoothly removed at the end. The utility of the PAc protecting group was then demonstrated by the 'traceless' semisynthesis of two proteins containing one or two native cysteines: human small heat shock protein Hsp27 and murine prion protein. PMID- 29321952 TI - Fasciculation and elongation zeta-1 protein (FEZ1) interacts with the retinoic acid receptor and participates in transcriptional regulation of the Hoxb4 gene. AB - Fasciculation and elongation zeta-1 (FEZ1) protein is involved in axon outgrowth and is highly expressed in the brain. It has multiple interaction partners, with functions varying from the regulation of neuronal development and intracellular transport mechanisms to transcription regulation. One of its interactors is retinoic acid receptor (RAR), which is activated by retinoic acid and controls many target genes and physiological process. Based on previous evidence suggesting a possible nuclear role for FEZ1, we wanted to deepen our understanding of this function by addressing the FEZ1-RAR interaction. We performed in vitro binding experiments and assessed the interface of interaction between both proteins. We found that FEZ1-RAR interacted with a similar magnitude as RAR to its responsive element DR5 and that the interaction occurred in the coiled-coil region of FEZ1 and in the ligand-binding domain of RAR. Furthermore, cellular experiments were performed in order to confirm the interaction and screen for induced target genes from an 86-gene panel. The analysis of gene expression showed that only in the presence of retinoic acid did FEZ1 induce hoxb4 gene expression. This finding is consistent with data from the literature showing the hoxb4 gene functionally involved in development and acute myeloid leukemia, as is FEZ1. PMID- 29321953 TI - Matrix metalloproteinase-1 facilitates MSC migration via cleavage of IGF-2/IGFBP2 complex. AB - The specific mechanism underlying the tumor tropism of human mesenchymal stem cells (MSCs) for cancer is not well defined. We previously showed that the migration potential of MSCs correlated with the expression and protease activity of matrix metalloproteinase (MMP)-1. Furthermore, highly tumor-tropic MSCs expressed higher levels of MMP-1 and insulin-like growth factor (IGF)-2 than poorly migrating MSCs. In this study, we examined the functional roles of IGF-2 and MMP-1 in mediating the tumor tropism of MSCs. Exogenous addition of either recombinant IGF-2 or MMP-1 could stimulate MSC migration. The correlation between IGF-2, MMP-1 expression, and MSC migration suggests that MMP-1 may play a role in regulating MSC migration via the IGF-2 signaling cascade. High concentrations of IGF binding proteins (IGFBPs) can inhibit IGF-stimulated functions by blocking its binding to its receptors and proteolysis of IGFBP is an important mechanism for the regulation of IGF signaling. We thus hypothesized that MMP-1 acts as an IGFBP2 proteinase, resulting in the cleavage of IGF-2/IGFBP2 complex and extracellular release of free IGF-2. Indeed, our results showed that conditioned media from highly migrating MSCs, which expressed high levels of MMP-1, cleaved the IGF-2/IGFBP2 complex. Taken together, these results showed that the MMP-1 secreted by highly tumor-tropic MSCs cleaved IGF-2/IGFBP2 complex. Free IGF-2 released from the complex may facilitate MSC migration toward tumor. PMID- 29321954 TI - A role for caspase-2 in sphingosine kinase 1 proteolysis in response to doxorubicin in breast cancer cells - implications for the CHK1-suppressed pathway. AB - Sphingosine kinase 1 (SK1) is a lipid kinase whose activity produces sphingosine 1-phosphate, a prosurvival lipid associated with proliferation, angiogenesis, and invasion. SK1 overexpression has been observed in numerous cancers. Recent studies have demonstrated that SK1 proteolysis occurs downstream of the tumor suppressor p53 in response to several DNA-damaging agents. Moreover, loss of SK1 in p53-knockout mice resulted in complete protection from thymic lymphoma, providing evidence that regulation of SK1 constitutes a major tumor suppressor function of p53. Given this profound phenotype, this study aimed to investigate the mechanism by which wild-type p53 regulates proteolysis of SK1 in response to the DNA-damaging agent doxorubicin in breast cancer cells. We find that p53 mediated activation of caspase-2 was required for SK1 proteolysis and that caspase-2 activity significantly alters the levels of endogenous sphingolipids. As p53 is mutated in 50% of all cancers, we extended our studies to investigate whether SK1 is deregulated in the context of triple-negative breast cancer cells (TNBC) harboring a mutation in p53. Indeed, caspase-2 was not activated in these cells and SK1 was not degraded. Moreover, caspase-2 activation was recently shown to be downstream of the CHK1-suppressed pathway in p53-mutant cells, whereby inhibition of the cell cycle kinase CHK1 leads to caspase-2 activation and apoptosis. Indeed, knockdown and inhibition of CHK1 led to the loss of SK1 in p53 mutant TNBC cells, providing evidence that SK1 may be the first identified effector of the CHK1-suppressed pathway. PMID- 29321955 TI - The central domain of UNC-45 chaperone inhibits the myosin power stroke. AB - The multidomain UNC-45B chaperone is crucial for the proper folding and function of sarcomeric myosin. We recently found that UNC-45B inhibits the translocation of actin by myosin. The main functions of the UCS and TPR domains are known but the role of the central domain remains obscure. Here, we show-using in vitro myosin motility and ATPase assays-that the central domain alone acts as an inhibitor of the myosin power stroke through a mechanism that allows ATP turnover. Hence, UNC-45B is a unique chaperone in which the TPR domain recruits Hsp90; the UCS domain possesses chaperone-like activities; and the central domain interacts with myosin and inhibits the actin translocation function of myosin. We hypothesize that the inhibitory function plays a critical role during the assembly of myofibrils under stress and during the sarcomere development process. PMID- 29321956 TI - An amebic protein disulfide isomerase (PDI) complements the yeast PDI1 mutation but is unable to support cell viability under ER or thermal stress. AB - In eukaryotic cells, protein disulfide isomerases (PDI) are oxidoreductases that catalyze the proper disulfide bond formation during protein folding. The pathobiology of the protozoan parasite Entamoeba histolytica, the causative agent of human amebiasis, depends on secretion of several virulence factors, such as pore-forming peptides and cysteine proteinases. Although the native conformation of these factors is stabilized by disulfide bonds, there is little information regarding the molecular machinery involved in the oxidative folding of amebic proteins. Whereas testing gene function in their physiological background would be the most suitable approach, we have taken advantage of the cellular benefits offered by the yeast Saccharomyces cerevisiae (as a model of eukaryotic cell) to examine the functional role of an amebic PDI (EhPDI). As the yeast PDI homolog is essential for cell viability, a functional complementation assay was carried out to test the ability of EhPDI to circumvent the lethal phenotype of a yeast PDI1 mutant. Also, its proficiency under stressful conditions was explored by examining the survival outcome following endoplasmic reticulum (ER) stress induced by a reductant agent (DTT) or thermal stress promoted by a nonpermissive temperature (37 degrees C). Our results indicate that EhPDI is functionally active when physiological conditions are stable. Nonetheless, when conditions are stressful (e.g., by the accumulation of misfolded proteins in the ER compartment), its functionality is exceeded, suggesting an inability to prevent unfolding, suppress aggregation, or assist refolding of proteins. Despite the latter, our findings constitute the initial step toward determining the participation of EhPDI in cellular mechanisms related to protein homeostasis. PMID- 29321957 TI - High expression of PALB2 predicts poor prognosis in patients with advanced breast cancer. AB - PALB2 mutation is associated with increased breast cancer risk; however, PALB2 mutation is rare in sporadic breast cancer cases and little is known about PALB2 expression in breast cancer. Here, we evaluated the prognostic effects of PALB2 with tissue microarray specimens of 117 female breast cancer patients, and determined the potential underlying mechanisms in cell models. In immunohistochemical analysis, we found increased expression of PALB2 in breast cancer tissues compared with the adjacent normal ductal epithelium (P < 0.001). Higher PALB2 scores were positively associated with histological grade and higher PALB2 expression was found in patients that were Her-2 negative compared with those that were positive (P < 0.05). Interestingly, higher expression of PALB2 was significantly associated with poorer overall survival (P < 0.01) in patients with stage III or nearby lymph node metastasis (N1, N2 or N3). In vitro studies found that PALB2 may promote the migration and invasion of MDA-MB-231 cells through E-cadherin suppression and NF-kappaB activation. In conclusion, these results suggest that PALB2 expression levels may serve as a novel prognostic factor for breast cancer patients. PMID- 29321958 TI - Diagnostic value of strand-specific miRNA-101-3p and miRNA-101-5p for hepatocellular carcinoma and a bioinformatic analysis of their possible mechanism of action. AB - There is accumulating evidence that miRNA might serve as potential diagnostic and prognostic markers for various types of cancer. Hepatocellular carcinoma (HCC) is the most common type of malignant lesion but the significance of miRNAs in HCC remains largely unknown. The present study aimed to establish the diagnostic value of miR-101-3p/5p in HCC and then further investigate the prospective molecular mechanism via a bioinformatic analysis. First, the miR-101 expression profiles and parallel clinical parameters from 362 HCC patients and 50 adjacent non-HCC tissue samples were downloaded from The Cancer Genome Atlas (TCGA). Second, we aggregated all miR-101-3p/5p expression profiles collected from published literature and the Gene Expression Omnibus and TCGA databases. Subsequently, target genes of miR-101-3p and miR-101-5p were predicted by using the miRWalk database and then overlapped with the differentially expressed genes of HCC identified by natural language processing. Finally, bioinformatic analyses were conducted with the overlapping genes. The level of miR-101 was significantly lower in HCC tissues compared with adjacent non-HCC tissues (P < 0.001), and the area under the curve of the low miR-101 level for HCC diagnosis was 0.925 (P < 0.001). The pooled summary receiver operator characteristic (SROC) of miR-101-3p was 0.86, and the combined SROC curve of miR-101-5p was 0.80. Bioinformatic analysis showed that the target genes of both miR-101-3p and miR-101-5p are involved in several pathways that are associated with HCC. The hub genes for miR 101-3p and miR-101-5p were also found. Our results suggested that both miR-101-3p and miR-101-5p might be potential diagnostic markers in HCC, and that they exert their functions via targeting various prospective genes in the same pathways. PMID- 29321959 TI - Daily voluntary exercise enhances pilocarpine-induced saliva secretion and aquaporin 1 expression in rat submandibular glands. AB - Saliva-a water-based fluid containing electrolytes, immunoglobulins, and enzymes has many functions, including the protection and hydration of mucosal structures within the oral cavity and the initiation of digestion. Aquaporins (AQPs) are proteins that act as water channels through membranes. We have previously reported upregulation of the expression levels of AQP 1 and 5 in the submandibular glands (SMGs) in heat-acclimated rats. In this study, we investigated pilocarpine-induced saliva secretion and AQP expression in rats after voluntary exercise. Male, 10-week-old Wistar rats were initially maintained at an ambient temperature of 24 degrees C for 10 days and were then kept for 40 days in cages either with a running wheel (exercise rats, n = 6) or with a locked wheel [control rats (CN), n = 6]. After the training period, the rats were anesthetized and pilocarpine, an M3 muscarinic receptor agonist, was intraperitoneally injected (0.5 mg.kg-1) to stimulate saliva secretion. Saliva was collected, and the SMGs were sampled and subjected to western blot, RT-PCR, and immunohistochemical analyses. Pilocarpine induced a greater amount of saliva in the exercised rats than in the CN. Expression levels of AQP1 mRNA and protein were significantly higher in SMGs of exercised rats than in those of the CN, but the expression of AQP5 was not affected by voluntary exercise. Voluntary exercise increased the expression of vascular endothelial growth factor (VEGF) and cluster of differentiation 31 (CD31), a marker for endothelial cells, in the SMGs. Voluntary exercise promoted pilocarpine-induced saliva secretion, probably via an increase in the expression level of AQP1 due to VEGF-induced CD31-positive angiogenesis in the SMG. PMID- 29321960 TI - The clinical value of miR-193a-3p in non-small cell lung cancer and its potential molecular mechanism explored in silico using RNA-sequencing and microarray data. AB - miR-193a-3p is a tumor-related miRNA playing an essential role in tumorigenesis and progression of non-small cell lung cancer (NSCLC). The objective of the present study was to investigate the relationship between miR-193a-3p expression and clinical value and to further explore the potential signaling of miR-193a-3p in the carcinogenesis of NSCLC. RNA-sequencing and microarray data were collected from the databases GEO, ArrayExpress and The Cancer Genome Atlas (TCGA). Furthermore, in silico assessments were performed to analyze the prospective pathways and networks of the target genes of miR-193a-3p. In total, 453 cases of NSCLC patients and 476 normal controls were included in blood samples, while 920 cases of NSCLC patients and 406 normal controls were included in tissue samples. The pooled positive likelihood ratio, the pooled negative likelihood ratio and the pooled diagnostic odds ratio were calculated to reflect the diagnostic value of miR-193a-3p in blood and tissue samples. Moreover, the areas under the curve of the summary receiver operating characteristic curve of blood and tissue were 0.64 and 0.79, respectively. In addition, we found a lower level of miR-193a in NSCLC tissues than in non-cancerous controls based on TCGA. A gene ontology (GO) enrichment analysis demonstrated that miR-193a-3p could be related to key signaling pathways in NSCLC. Also, several vital pathways were illustrated by KEGG. Lower expression of miR-193a-3p in tissue samples of NSCLC may be associated with tumorigenesis and be a predictor of deterioration of NSCLC patients, and pathway analysis revealed crucial signaling pathways correlated with the incidence and progress of NSCLC. PMID- 29321961 TI - Biophysical characterization of Atg11, a scaffold protein essential for selective autophagy in yeast. AB - Autophagy is an intracellular degradation system in which the formation of an autophagosome is a key event. In budding yeast, autophagosomes are generated from the preautophagosomal structure (PAS), in which Atg11 and Atg17 function as scaffolds essential for selective and nonselective types of autophagy, respectively. Structural studies have been extensively performed on Atg17, but not on Atg11, preventing us from understanding the selective type of the PAS. Here, we purified and characterized Atg11. Biophysical analyses, including analytical ultracentrifugation and CD, showed that Atg11 behaves as an elongated homodimer abundant in alpha-helices in solution. Moreover, truncation analyses suggested that Atg11 has a parallel coiled-coil architecture, in contrast to the antiparallel dimeric architecture of Atg17. PMID- 29321962 TI - Mutual influence of secondary and key drug-resistance mutations on catalytic properties and thermal stability of TEM-type beta-lactamases. AB - Highly mutable beta-lactamases are responsible for the ability of Gram-negative bacteria to resist beta-lactam antibiotics. Using site-directed mutagenesis technique, we have produced in vitro a number of recombinant analogs of naturally occurring TEM-type beta-lactamases, bearing the secondary substitution Q39K and key mutations related to the extended-spectrum (E104K, R164S) and inhibitor resistant (M69V) beta-lactamases. The mutation Q39K alone was found to be neutral and hardly affected the catalytic properties of beta-lactamases. However, in combination with the key mutations, this substitution resulted in decreased KM values towards hydrolysis of a chromogenic substrate, CENTA. The ability of enzymes to restore catalytic activity after exposure to elevated temperature has been examined. All double and triple mutants of beta-lactamase TEM-1 bearing the Q39K substitution showed lower thermal stability compared with the enzyme with Q39 intact. A sharp decrease in the stability was observed when Q39K was combined with E104K and M69V. The key R164S substitution demonstrated unusual ability to resist thermal inactivation. Computer analysis of the structure and molecular dynamics of beta-lactamase TEM-1 revealed a network of hydrogen bonds from the residues Q39 and K32, related to the N-terminal alpha-helix, towards the residues R244 and G236, located in the vicinity of the enzyme's catalytic site. Replacement of Q39 by lysine in combination with the key drug resistance mutations may be responsible for loss of protein thermal stability and elevated mobility of its secondary structure elements. This effect on the activity of beta lactamases can be used as a new potential target for inhibiting the enzyme. PMID- 29321963 TI - A critical role of hepatitis B virus polymerase in cirrhosis, hepatocellular carcinoma, and steatosis. AB - Hepatitis B is one of the most common infectious diseases in the world; more than 350 million people are carriers of hepatitis B virus (HBV). Chronic HBV infection (CHB) leads to liver diseases such as cirrhosis, hepatocellular carcinoma (HCC), and steatosis. Despite its seriousness in terms of public health, the pathogenic mechanism of how CHB leads to liver diseases, especially cirrhosis and steatosis, remains unclear. We studied the role of HBV polymerase (HBp) reverse transcriptase (RT) activity in association with the pathogenesis of liver diseases in CHB by developing transgenic mice expressing HBp or the RT domain of HBp. Thorough pathological, serological, and histological analyses of the transgenic mice, as well as mechanistic studies, were conducted. All of the transgenic mice expressing RT in their livers developed early cirrhosis with steatosis by 18 months of age, and 10% developed HCC. The RT activity of HBp stimulates coordinated proapoptotic and proinflammatory responses involving the caspase-9, caspase-3, and caspase-1 pathways that might lead to the development of cirrhosis, HCC, and steatosis. The animal model described here should prove useful for elucidating the molecular events in the CHB-induced liver diseases. PMID- 29321964 TI - Introduction of H2C2-type zinc-binding residues into HIV-2 Vpr increases its expression level. AB - Human immunodeficiency virus type 2 has two structurally similar proteins, Vpx and Vpr. Vpx degrades the host anti-viral protein SAMHD1 and is expressed at high levels, while Vpr is responsible for cell cycle arrest and is expressed at much lower levels. We constructed a Vpr mutant with a high level of expression by replacing the amino acids HHCR/HHCH with a putative H2C2-type zinc-binding site that is carried by Vpx. Our finding suggests that during the evolution of Vpr and Vpx, zinc-binding likely became a mechanism for regulating their expression levels. PMID- 29321965 TI - Prognostic score for life expectancy evaluation of lung cancer patients after bone metastasis. AB - Background: This study identifies the overall survival status of lung cancer patients with bone metastasis and metastasis patterns. Poor prognostic factors were identified to develop a scoring system for estimating survival period after bone metastasis. Methods: A retrospective cohort analysis was performed at Chiang Mai University for the period January 1, 2006 and December 31, 2013. Time-to event analysis was performed to estimate survival rate. The primary end point was death related to lung cancer. Univariate and multivariate analysis of the prognostic variables was done using the Cox's regression model. The score was derived from the corresponding estimated regression coefficients of significantly poor prognostic factors. Results: A total of 505 lung cancer with bone metastasis patients were analyzed. Four hundred two cases (79.6%) were concurrent diagnosis and 103 (20.4%) were subsequent diagnosis. The median survival time of lung cancer after bone metastasis 148 days. Male gender and ECOG 3-4 were significant poor prognostic factors for lung cancer after bone metastasis, with hazard ratios of 1.42 (95% CI 1.17-1.73), and 1.30 (95% CI 1.06-1.60), respectively. Prognosis score was determined using the binary term present/not-present for those factors. The curve from prognostic score summations of 2, 1 and 0 presented a good discrimination of survival expectancy, showing an expected median survival time of approximately 109, 146, and 225 days, respectively. Conclusions: Prognostic score is a clinically simple and easy method for estimating life expectancy and for guiding interventions in bone metastasis of lung cancer. PMID- 29321966 TI - Small interfering RNA-mediated silencing of G-protein-coupled receptor 137 inhibits growth of osteosarcoma cells. AB - Purpose: Osteosarcoma is the most widespread primary carcinoma in bones. Osteosarcoma cells are highly metastatic and frequently develop resistance to chemotherapy making this disease harder to treat. This identifies an urgent need of novel therapeutic strategies for osteosarcoma. G-Protein-coupled receptor 137 (GPR137) is involved in several human cancers and may be a novel therapeutic target. Methods: The expression of GPR137 was assessed in one osteoblast and three human osteosarcoma cell lines via the quantitative real-time polymerase chain reaction and western blot assays. Stable GPR137 knockdown cell lines were established using an RNA interference lentivirus system. Viability, colony formation, and flow cytometry assays were performed to measure the effects of GPR137 depletion on cell growth. The underlying molecular mechanism was determined using signaling array analysis and western blot assays. Results: GPR137 expression was higher in the three human osteosarcoma cell lines, Saos-2, U2OS, and SW1353, than in osteoblast hFOB 1.19 cells. Lentivirus-mediated small interfering RNA targeting GPR137 successfully knocked down GPR137 mRNA and protein expression in both Saos-2 and U2OS cells. In the absence of GPR137, cell viability and colony formation ability were seriously impaired. The extent of apoptosis was also increased in both cell lines. Moreover, AMP-activated protein kinase alpha, proline-rich AKT substrate of 40 kDa, AKT, and extracellular signal regulated kinase phosphorylation levels were down-regulated in GPR137 knockdown cells. Conclusions: The results of this study highlight the crucial role of GPR137 in promoting osteosarcoma cell growth in vitro. GPR137 could serve as a potential therapeutic target against osteosarcoma. PMID- 29321967 TI - Teratoma as unusual cause of chest pain, hemoptysis and dyspnea in a young patient. AB - A 16-year-old girl presented with intermittent left chest pain and breathlessness on exertion for last 4 months with one episode of haemoptysis. There has been loss of appetite and weight loss of 4 kg over a period of 1 month. A chest radiograph revealed a large mass like opacity with pleural effusion in the left lung field. Computerized Tomography scanning (CT scanning) and Positron Emission Tomography/Computerized Tomography scanning (PET/CT scanning) demonstrated a 7 cm round, cystic lesion in the anterior mediastinum. Pleural fluid cytology did not show any malignant cell. The patient was referred to cardiothoracic department for thoracotomy and resection. Surgery was uncomplicated with rapid recovery. Histologic findings suggested mature teratoma components surrounded by oedematous pleura and pericardium with adjacent thymus and lung tissue. PMID- 29321968 TI - Achalasia with massive oesophageal dilation causing tracheomalacia and asthma symptoms. AB - Achalasia is an uncommon oesophageal motor disorder characterized by failure of relaxation of the lower oesophageal sphincter and muscle hypertrophy, resulting in a loss of peristalsis and a dilated oesophagus. Gastrointestinal symptoms are invariably present in all cases of achalasia observed in adults. We report a case of a 34 year-old female patient with long standing history of asthma-like symptoms, labelled as uncontrolled and steroid resistant asthma with no gastrointestinal manifestations. Thoracic CT scan revealed a massive oesophagus due to achalasia, which caused severe tracheomalacia as a result of tracheal compression. Her symptoms regressed completely after a laparoscopic Heller myotomy surgery intervention. PMID- 29321969 TI - The two-year progression of structural and functional cerebral MRI in amyotrophic lateral sclerosis. AB - MRI has emerged as one of several urgently needed candidate disease progression biomarkers for the neurodegenerative disorder amyotrophic lateral sclerosis (ALS), not least due to its unique ability to non-invasively assess structural and functional cerebral pathology. We sought to identify the extent of detectable change in cerebral MRI metrics over a more prolonged period. Analysis of multi modal MRI data was performed in a cohort of sixteen patients (13 ALS and 3 with primary lateral sclerosis) in whom it was possible to acquire six-monthly images over two years. Structural brain changes were assessed using voxel-based morphometry of grey matter and shape analysis of sub-cortical grey matter structures, tract-based spatial statistics of diffusion tensor imaging (DTI) metrics optimized for longitudinal analysis in the white matter, as well as whole brain voxel-wise statistics of DTI metrics. Changes in resting state functional MRI (rs-fMRI) were investigated via independent component and dual regression analyses of functional connectivity (FC), controlled for confounding effects of grey matter decline. Both linear changes with time and brain changes correlated with revised ALS functional rating score (ALSFRS-R) decline were studied. Widespread and progressive reductions in grey matter were observed in the precentral gyri and posterior cingulate cortex, as well as progressive local atrophy of the thalamus, caudate, and pallidum bilaterally, and right putamen, hippocampus and amygdala. The most prominent DTI tract-based changes were in the superior longitudinal fasciculi and corpus callosum. More widespread areas of DTI changes included the thalami and caudate nuclei, hippocampi and parahippocampal gyri, insular cortices, anterior and posterior cingulate gyri, frontal operculum and cerebellum. FC decreases were noted between the sensorimotor resting state network and the frontal pole, between a network comprising both thalami and an area in the visual cortex, in relation to both time from baseline and ALSFRS-R decline. FC increases between the left primary motor cortex and left fronto parietal network were seen for both statistical approaches. A longer period of follow-up, though necessarily involving more slowly-progressive cases, demonstrated widespread changes in both grey and white matter structural MRI measures. The mixed picture of regional decreases and increases in FC is compatible with compensatory change, in what should be viewed as a brain-based disease characterised by larger-scale disintegration of motor and frontal projection cerebral networks. PMID- 29321970 TI - DeepIED: An epileptic discharge detector for EEG-fMRI based on deep learning. AB - Presurgical evaluation that can precisely delineate the epileptogenic zone (EZ) is one important step for successful surgical resection treatment of refractory epilepsy patients. The noninvasive EEG-fMRI recording technique combined with general linear model (GLM) analysis is considered an important tool for estimating the EZ. However, the manual marking of interictal epileptic discharges (IEDs) needed in this analysis is challenging and time-consuming because the quality of the EEG recorded inside the scanner is greatly deteriorated compared to the usual EEG obtained outside the scanner. This is one of main impediments to the widespread use of EEG-fMRI in epilepsy. We propose a deep learning based semi automatic IED detector that can find the candidate IEDs in the EEG recorded inside the scanner which resemble sample IEDs marked in the EEG recorded outside the scanner. The manual marking burden is greatly reduced as the expert need only edit candidate IEDs. The model is trained on data from 30 patients. Validation of IEDs detection accuracy on another 37 consecutive patients shows our method can improve the median sensitivity from 50.0% for the previously proposed template based method to 84.2%, with false positive rate as 5 events/min. Reproducibility validation on 15 patients is applied to evaluate if our method can produce similar hemodynamic response maps compared with the manual marking ground truth results. We explore the concordance between the maximum hemodynamic response and the intracerebral EEG defined EZ and find that both methods produce similar percentage of concordance (76.9%, 10 out of 13 patients, electrode was absent in the maximum hemodynamic response in two patients). This tool will make EEG-fMRI analysis more practical for clinical usage. PMID- 29321972 TI - A case of urachal villous adenoma with high grade dysplasia focally bordering on adenocarcinoma in situ. PMID- 29321971 TI - Processing and regulation of negative emotions in anorexia nervosa: An fMRI study. AB - Theoretical models and recent advances in the treatment of anorexia nervosa (AN) have increasingly focused on the role of alterations in the processing and regulation of emotions. To date, however, our understanding of these changes is still limited and reports of emotional dysregulation in AN have been based largely on self-report data, and there is a relative lack of objective experimental evidence or neurobiological data. The current functional magnetic resonance imaging (fMRI) study investigated the hemodynamic correlates of passive viewing and voluntary downregulation of negative emotions by means of the reappraisal strategy detachment in AN patients. Detachment is regarded as adaptive regulation strategy associated with a reduction in emotion-related amygdala activity and increased recruitment of prefrontal brain regions associated with cognitive control processes. Emotion regulation efficacy was assessed via behavioral arousal ratings and fMRI activation elicited by an established experimental paradigm including negative images. Participants were instructed to either simply view emotional pictures or detach themselves from feelings triggered by the stimuli. The sample consisted of 36 predominantly adolescent female AN patients and a pairwise age-matched healthy control group. Behavioral and neuroimaging data analyses indicated a reduction of arousal and amygdala activity during the regulation condition for both patients and controls. However, compared with controls, individuals with AN showed increased activation in the amygdala as well as in the right dorsolateral prefrontal cortex (dlPFC) during the passive viewing of aversive compared with neutral pictures. These results extend previous findings indicative of altered processing of salient emotional stimuli in AN, but do not point to a general deficit in the voluntary regulation of negative emotions. Increased dlPFC activation in AN during passive viewing of negative stimuli is in line with the hypothesis that the disorder may be characterized by excessive self-control. Taken together, the data seem to suggest that reappraisal via detachment may be an effective strategy to reduce negative arousal for individuals with AN. PMID- 29321973 TI - A peripelvic renal cyst resulting in clinically symptomatic ureteropelvic junction obstruction. PMID- 29321974 TI - An uncommon association with sub-arachnoid hemorrhage in a young man. PMID- 29321975 TI - Unilateral renal forniceal rupture - A rare presentation of retroperitoneal fibrosis. PMID- 29321976 TI - Modified ex-vivo repair of distal renal artery aneurysm in a pediatric patient. PMID- 29321977 TI - Imidacloprid exposure cause the histopathological changes, activation of TNF alpha, iNOS, 8-OHdG biomarkers, and alteration of caspase 3, iNOS, CYP1A, MT1 gene expression levels in common carp (Cyprinus carpio L.). AB - Imidacloprid (IMI) is a neonicotinoid that is widely used for the protection of crops and carnivores from insects and parasites, respectively. It is well known that imidacloprid exposure has a harmful effect on several organisms. However, there is little information about imidacloprid toxicity in aquatic animals, particularly fish. Thus, in the current study, we assessed the histopathological changes; activation of iNOS, 8-OHdG and TNF-alpha; and expression levels of caspase 3, iNOS, CYP1A and MT1 genes in the common carp exposed to imidacloprid. For this purpose, fish were exposed to either a low dose (140 mg/L) or a high dose (280 mg/L) of imidacloprid for 24 h, 48 h, 72 h and 96 h. After IMI exposure, we detected hyperplasia of secondary lamellar cells and mucous cell hyperplasia in the gills, as well as hydropic degeneration in hepatocytes and necrosis in the liver. Moreover, 8-OHdG, iNOS and TNF-alpha activation was found particularly in the gills and liver but also moderately in the brain. Transcriptional analysis showed that caspase 3 expression was altered low dose and high doses of IMI for 72 h and 96 h exposure (p < 0.05), iNOS expression was up-regulated with both low and high doses of IMI and in a time-dependent manner (p < 0.05, p < 0.01, p < 0.001), CYP1A expression was not significantly changed regardless of the dose of IMI and exposure time (p > 0.05) except with low and high doses of IMI for 96 h (p < 0.05), and lastly, MT1 gene expression was up regulated only in the brain with low doses of IMI for 96 h and high doses of IMI for 48 h, 72 h and 96 h exposure (p < 0.05, p < 0.01). Our results indicated that acute IMI exposure moderately induce apoptosis in the brain but caused severe histopathological lesions, inflammation, and oxidative stress in the gills, liver, and brain of the common carp. PMID- 29321978 TI - Toxicity of formulants and heavy metals in glyphosate-based herbicides and other pesticides. AB - The major pesticides of the world are glyphosate-based herbicides (GBH), and their toxicity is highly debated. To understand their mode of action, the comparative herbicidal and toxicological effects of glyphosate (G) alone and 14 of its formulations were studied in this work, as a model for pesticides. GBH are mixtures of water, with commonly 36-48% G claimed as the active principle. As with other pesticides, 10-20% of GBH consist of chemical formulants. We previously identified these by mass spectrometry and found them to be mainly families of petroleum-based oxidized molecules, such as POEA, and other contaminants. We exposed plants and human cells to the components of formulations, both mixed and separately, and measured toxicity and human cellular endocrine disruption below the direct toxicity experimentally measured threshold. G was only slightly toxic on plants at the recommended dilutions in agriculture, in contrast with the general belief. In the short term, the strong herbicidal and toxic properties of its formulations were exerted by the POEA formulant family alone. The toxic effects and endocrine disrupting properties of the formulations were mostly due to the formulants and not to G. In this work, we also identified by mass spectrometry the heavy metals arsenic, chromium, cobalt, lead and nickel, which are known to be toxic and endocrine disruptors, as contaminants in 22 pesticides, including 11 G-based ones. This could also explain some of the adverse effects of the pesticides. In in vivo chronic regulatory experiments that are used to establish the acceptable daily intakes of pesticides, G or other declared active ingredients in pesticides are assessed alone, without the formulants. Considering these new data, this assessment method appears insufficient to ensure safety. These results, taken together, shed a new light on the toxicity of these major herbicides and of pesticides in general. PMID- 29321979 TI - Improvement of Aspergillus flavus saponin hydrolase thermal stability and productivity via immobilization on a novel carrier based on sugarcane bagasse. AB - Soyasapogenol B (SB) is known to have many biological activities such as hepatoprotective, anti-inflammatory, anti-mutagenic, antiviral and anticancer activities. Enzymatic conversion of soyasaponins to SB was carried out using saponin hydrolase (SH) extracted from Aspergillus flavus. The partially purified enzyme was immobilized on different carriers by physical adsorption, covalent binding or entrapment. Among the investigated carriers, Eupergit C and sugarcane bagasse (SCB) activated by DIC and NHS were the most suitable two carriers for immobilization (the immobilized forms recovered 46.5 and 37.1% of the loaded enzyme activity, respectively). Under optimized immobilization conditions, immobilized SH on Eupergit C and on activated SBC recovered 87.7 and 83.3% of its original activity, respectively. Compared to free SH, immobilized SH on Eupergit C and on activated SCB showed higher optimum pH, activation energy, half-lives and lower deactivation constant rate. Also, their SB productivities were improved by 2.3- and 2.2-folds compared to free SH (87.7 and 83.3 vs. 37.5%, respectively). Hence, being SCB more sustainable and an inexpensive material, it can be considered a good alternative to Eupergit C as a support for SH immobilization. SH immobilization on industrially applicable and inexpensive carrier is necessary to improve SB yield and reduce its production cost. The chemical structure of SCB and the resulting cellulose derivatives were studied by ATR-IR spectroscopy. The thermal analysis technique was used to study the chemical treatment of SCB and coupling with the enzyme. This technique confirmed the removal of lignin and hemicellulose by chemical treatment of SCB. PMID- 29321980 TI - Transcriptome sequencing and de novo assembly in arecanut, Areca catechu L elucidates the secondary metabolite pathway genes. AB - Areca catechu L. belongs to the Arecaceae family which comprises many economically important palms. The palm is a source of alkaloids and carotenoids. The lack of ample genetic information in public databases has been a constraint for the genetic improvement of arecanut. To gain molecular insight into the palm, high throughput RNA sequencing and de novo assembly of arecanut leaf transcriptome was undertaken in the present study. A total 56,321,907 paired end reads of 101 bp length consisting of 11.343 Gb nucleotides were generated. De novo assembly resulted in 48,783 good quality transcripts, of which 67% of transcripts could be annotated against NCBI non - redundant database. The Gene Ontology (GO) analysis with UniProt database identified 9222 biological process, 11268 molecular function and 7574 cellular components GO terms. Large scale expression profiling through Fragments per Kilobase per Million mapped reads (FPKM) showed major genes involved in different metabolic pathways of the plant. Metabolic pathway analysis of the assembled transcripts identified 124 plant related pathways. The transcripts related to carotenoid and alkaloid biosynthetic pathways had more number of reads and FPKM values suggesting higher expression of these genes. The arecanut transcript sequences generated in the study showed high similarity with coconut, oil palm and date palm sequences retrieved from public domains. We also identified 6853 genic SSR regions in the arecanut. The possible primers were designed for SSR detection and this would simplify the future efforts in genetic characterization of arecanut. PMID- 29321981 TI - Laparoscopic total pancreatectomy with islet autotransplantation for chronic pancreatitis. AB - Background: Pain from chronic pancreatitis can be debilitating and have far reaching personal and societal consequences. These consequences can include patient debilitation, worsening of comorbid conditions, narcotic dependence, and implications for health care policy. A variety of surgical procedures have shown limited efficacy for relieving pain in this cohort of patients, and a highly select subset may benefit from a total pancreatectomy (TP). While a brittle form of diabetes can result from TP alone, when combined with islet cell autotransplantation this procedural complication can be minimized. Further, utilizing a minimally invasive approach may be associated with decreased periprocedural pain and length of hospital stay. Methods: We describe our experience at a single high-volume center in the United States. We present our preferred preoperative evaluation, our updated operative techniques, and the standard perioperative care required following this complex laparoscopic procedure. Results: Between 2013 and 2015, there were 20 patients who underwent laparoscopic total pancreatectomy with islet autotransplantation (LTPIAT). Perioperative mortality was 0%. Conclusions: At a high volume pancreatic center with experienced laparoscopic pancreatic surgeons, LTPIAT is feasible and safe for the management of chronic pancreatitis refractory to prior medical and surgical therapies. PMID- 29321982 TI - Homeopathic Arnica from Boiron and post-operative bleeding in mastectomized women in Milan: Statistical flaws and bias to be addressed. AB - Image 1. PMID- 29321983 TI - Anti-paralytic medicinal plants - Review. AB - Paralysis is the loss of the ability of one or more muscles to move, due to disruption of signaling between the nervous system and muscles. The most common causes of paralysis are stroke, head injury, spinal cord injury (SCI) and multiple sclerosis. The search for cure of paralysis is yet to be found. Many ethnobotanical surveys have reported the use of medicinal plants by various ethnic communities in treating and curing paralysis. The present review discusses the use of medicinal plants in India for ameliorating and curing paralytic conditions, as well as discuses some of the important developments in future possible applications of medicinal plants in treatment of paralysis. This review reports the use of 37 medicinal plants for their application and cure of ailments related to paralysis. Out of the 37 plants documented, 11 plants have been reported for their ability to cure paralysis. However, the information on the documented plants were mostly found to be inadequate, requiring proper authentication with respect to their specificity, dosage, contradictions etc. It is found that despite the claims presented in many ethnobotanical surveys, the laboratory analysis of these plants remain untouched. It is believed that with deeper intervention on analysis of bioactive compounds present in these plants used by ethic traditional healers for paralysis, many potential therapeutic compounds can be isolated for this particular ailment in the near future. PMID- 29321984 TI - Effects of Bhramari Pranayama on health - A systematic review. AB - Pranayama, a branch of yoga practice is extremely beneficial to mankind in maintaining sound physical and mental health and this article aims to attain an insight on the studies conducted on the effectiveness of Bhramari Pranayama (Bhr.P) on health. The studies done until May 2016 were found using Medline, Embase, Google scholar and manual search. Studies conducted on the health effectiveness of Bhr.P specifically were included on the basis of prisma guidelines. The data were defined by their objectives, methodology, study setting, findings, interventions done and implications suggested in the study. Methodological Quality Rating Scale (MQRS) and Newcastle-Ottawa Scale (NOS) were used in reviewing and reporting results of the included studies. 6 studies satisfied the inclusion criteria; 2 studies were done on the cold pressor test, one on heart rate and BP, one on EEG changes, one each on the inhibitory response and tinnitus condition. In the included studies, the Bhr.P practices have shown para-sympathetic dominance. There are some encouraging effects of Bhr.P on various physiological systems. Methodological quality of the included studies was evaluated to be very low and none of them were RCTs. Yet the available studies are heterogeneous, dealing in different grounds and this heterogeneity serves as a resource for the limited scope of studies on Bhr.P. Therefore, further large scale, properly designed, randomized trials of Bhr.P on various systems have to be done to justify these effects efficiently. PMID- 29321985 TI - Traditional Persian Medicine and management of metabolic dysfunction in polycystic ovary syndrome. AB - Polycystic ovary syndrome (PCOS) is a common endocrine disorder in women of reproductive age. Its cause is unknown and it remains the most enigmatic of reproductive disorders. The extant written documents of Traditional Persian Medicine (TPM) - with holistic approaches towards human health - contain remedies used for centuries. Before further experimental research on any of these treatments, it is appropriate to study current related scientific evidence on their possible pharmacological actions. This work aims to study PCOS and its treatments in TPM. To collect data from medieval medicinal texts, six of the most famous manuscripts of Persian medicine were studied. Medicinal treatments for a problem similar to PCOS were searched for in these books. The plants were listed and their authentications were confirmed in accordance with botanical books. PubMed and ScienceDirect databases were searched for related mechanisms of action or pharmacological activities of the medicinal plants reported. From numerous articles, the current work tried to cite the latest publications with regard to each reported plant and PCOS-related mechanisms of action. We studied herbal treatments recommended by ancient Persians to treat a condition called Habs-e tams, which had the same symptoms of PCOS. It could be concluded that ancient physicians not only wanted to treat the irregular menstrual cycle-which is the most obvious symptom of PCOS-but also their treatment options were aimed at ameliorating the related underlying metabolic dysfunctions. The recommended herbs, which have the most scientific proof for their related actions, can be studied further in experimental analyses. PMID- 29321986 TI - Traditional uses and pharmacological properties of Clerodendrum phytochemicals. AB - Clerodendrum is a genus of ca. 500 species in the family Lamiaceae and widely distributed throughout the whole world. Up to now, many species of this genus have been described in various indigenous systems of medicine and are used in preparation of folklore medicines for the treatment of various life-threatening diseases, and more than eleven species of the Clerodendrum genus have been very well studied for their chemical constituents and biological activities, and 283 compounds, including monoterpene and its derivatives, sesquiterpene, diterpenoids, triterpenoids, flavonoid and flavonoid glycosides, phenylethanoid glycosides, steroids and steroid glycosides, cyclohexylethanoids, anthraquinones, cyanogenic glycosides, and others have been isolated and identified. Pharmacological studies have shown that these compounds and extracts from the Clerodendrum genus have extensive activities, such as anti-inflammatory and anti nociceptive, anti-oxidant, anti-hypertensive, anticancer, antimicrobial, anti diarrheal, hepatoprotective, hypoglycemic and hypolipidemic, memory enhancing and neuroprotective, and other activities. In this review, we attempt to highlight over phytochemical progress and list the phytoconstituents isolated from the genus Clerodendrum reported so far. The biological activities of this genus are also covered. PMID- 29321987 TI - Gelam honey attenuates ovalbumin-induced airway inflammation in a mice model of allergic asthma. AB - Allergic asthma is a chronic inflammatory disorder of the pulmonary airways. Gelam honey has been proven to possess anti-inflammatory property with great potential to treat an inflammatory condition. However, the effect of ingestion of Gelam honey on allergic asthma has never been studied. This study aimed to investigate the efficacy of Gelam honey on the histopathological changes in the lungs of a mice model of allergic asthma. Forty-two Balb/c mice were divided into seven groups: control, I, II, III, IV, V and VI group. All groups except the control were sensitized and challenged with ovalbumin. Mice in groups I, II, III, IV, and V were given honey at a dose of 10% (v/v), 40% (v/v) and 80% (v/v), dexamethasone 3 mg/kg, and phosphate buffered saline (vehicle) respectively, orally once a day for 5 days of the challenged period. Mice were sacrificed 24 h after the last OVA challenged and the lungs were evaluated for histopathological changes by light microscopy. All histopathological parameters such as epithelium thickness, the number of mast cell and mucus expression in Group III significantly improved when compared to Group VI except for subepithelial smooth muscle thickness (p < 0.05). In comparing Group III and IV, all the improvements in histopathological parameters were similar. Also, Gelam honey showed a significant (p < 0.05) reduction in inflammatory cell infiltration and beta hexosaminidase level in bronchoalveolar lavage fluid. In conclusion, we demonstrated that administration of high concentration of Gelam honey alleviates the histopathological changes of mice model of allergic asthma. PMID- 29321988 TI - Hypolipidemic effects of S-(+)-linalool and essential oil from Cinnamomum osmophloeum ct. linalool leaves in mice. AB - Cinnamomum osmophloeum ( tu rou gui) ct. linalool is one of the chemotypes of the indigenous cinnamon in Taiwan. S-(+)-linalool is the major constituent of leaf essential oil (LEO) of C. osmophloeum ct. linalool. This study aimed to investigate its physiological effects including body weight changes, blood biochemical values, and histopathological changes in mice. The mice were treated with LEO, S-(+)-linalool, and R-(-)-linalool. Results demonstrated similar physiological changes in mice treated with LEO and S-(+)-linalool, but significantly different effects in the body weight, TG, TC and blood glucose of R (-)-linalool group. S-(+)-linalool-treated mice gained less weight and had significant decrease in blood triglyceride levels. No histopathological changes were observed in livers, kidneys, and spleens of S-(+)-linalool-treated mice. Furthermore, there were no significant differences in aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels between S-(+)-linalool-treated mice and the control group. In addition, LEO and S-(+)-linalool significantly inhibited lipid accumulation through down-regulation of 3T3-L1 adipocyte differentiation. Taken together, the results show that LEO and S-(+)-linalool from C. osmophloeum ct. linalool can contribute to body weight management without harmful side effects. PMID- 29321989 TI - Antidepressant-like effects of Gan-Mai-Dazao-Tang via monoamine regulatory pathways on forced swimming test in rats. AB - Depression is a highly prevalent and recurrent mental disorder that impacts all aspects of human life. Undesirable effects of the antidepressant drugs led to the development of complementary and alternative therapies. Gan-Mai-Da-Zao-Tang (, gan mai da zao tang) is a traditional herbal formula commonly used for the treatment of depression, but lack of scientific proof on its mechanism. It consisted of Glycyrrhiza uralensis Fisch. (licorice), Triticum aestivum L. (wheat) and Zizphus jujuba Mill. (jujube). The objective of this study is to investigate the antidepressant effects of Gan-Mai-Dazao-Tang and its ingredients in rats exposed to forced swimming test (FST). The 72 of male Nerl: Wistar rats (8 weeks old) were randomized into control (10 mL/kg bw H2O), licorice (0.4 g/kg bw), wheat (1.6 g/kg bw), jujube (0.5 g/kg bw), Gan-Mai-Da-Zao-Tang (2.5 g/kg bw of licorice: wheat: jujube in ratio of 5:20:6) and Prozac (18 mg/kg bw) groups. Samples were administered by oral gavage for 21 days. FST was performed on 21st day, with 15 min for pretest followed by 5 min for real test. Then, the animals were sacrificed and brain tissues were collected for monoamines analyses. The Gan Mai-Da-Zao-Tang (LWJ) showed significantly down-regulation of immobility time, 3,4-dihydroxyphenylacetic acid (DOPAC) and DOPAC/dopamine (DA) turnover rates, and also enhanced the concentration of serotonin (5-HT) and DA in brain tissues, as compared with the control. The LWJ stated the potent antidepressant-like effect by modulating these monoamines concentration, while the licorice, wheat and jujube did not reported significant results as compared with control group. The positive control (Prozac) was noted with significantly reduction in body weight and appetite. In conclusion, the antidepressant-like effects of LWJ might be mediated by the regulation of monoamine neurotransmitters. Thus, it could beneficial in depression treatment as a complementary approach. PMID- 29321990 TI - In vitro antioxidant activities of root extract of Asparagus racemosus Linn. AB - Objective: The purpose of the study is to investigate potential of antioxidant property of ethanolic root extract of Asparagus racemosus Linn (EEAR). Methods: In vitro evaluation antioxidant property of EEAR was done using various methods like DPPH scavenging activity, hydroxyl radical scavenging activity, and nitric oxide scavenging activity. HPTLC fingerprint analysis was performed for qualitative determination of possible number of components from the ethanolic extract. Acute toxicity study was performed in Wistar rat and an OECD guideline 423 was followed. Results: The yield value was found 0.96% from EEAR. A concentration of 468.57 +/- 3.002 MUg/ml of probable antioxidant material from EEAR was required to scavenge 50% of DPPH. The IC50 value of EEAR were found to be 508.17 +/- 7.37 MUg and 416.57 +/- 5.08 MUg when determined by hydroxyl radical and nitric oxide scavenging assay respectively. The reducing powers of EEAR was 0.295 +/- 0.0037 at 125 MUg/ml and increased to 0.934 +/- 0.0005 at 500 MUg/ml. HPTLC fingerprint data supports several basic informations like isolation, purification, quality evaluation and standardization. No sign of toxicity was observed after treated with 2000 mg/kg of EEAR. Conclusion: The obtained data highlight the potential role of EEAR as a source of natural antioxidants. PMID- 29321991 TI - Buddleja globosa (matico) prevents collagen-induced platelet activation by decreasing phospholipase C-gamma 2 and protein kinase C phosphorylation signaling. AB - Platelets play a key role in thrombosis and cardiovascular diseases. Medicinal plants could be one of the most important factors that influence risks for platelet activation. Buddleja globosa (known as "matico") is a medicinal plant with many biological activities. The high content of polyphenols suggest that matico could have antiplatelet activity. The present study was aimed at evaluating mechanisms of antiplatelet action of an extract of matico. We demonstrated that matico extract at low concentrations and in a concentration dependent manner (0.05-1 mg/mL) was a potent inhibitor of platelet aggregation in response to collagen, convulsion and ADP (IC50 values was 61 MUg/mL, 72 MUg/mL and 290 MUg/mL, respectively). In this sense matico extract exerted the greatest antiaggregant activity induced by collagen. Similarly, matico showed a decrease in % of positive platelet for P-selectina (vehicle, 0.01, 0.05, 0.1, 0.5 and 1 mg/mL were 32 +/- 2%, 29 +/- 2 (p < 0.05), 19 +/- 1 (p < 0.01), 15 +/- 2 (p < 0.01), 10 +/- 1% (p < 0.01) and 7 +/- 2% (p < 0.01), respectively) and PAC-1 binding (vehicle, 0.01, 0.05, 0.1, 0.5 and 1 mg/mL were 59 +/- 1, 58 +/- 3 (n.s), 55 +/- 2 (p < 0.05), 50 +/- 2 (p < 0.01), 38 +/- 1 (p < 0.01), 36 +/- 2 (p < 0.01). The cellular mechanism for the antiplatelet activity of matico might be mediated by the inhibition of phospholipase C-gamma 2 and protein kinase C phosphorylation. This beneficial property of matico may be of importance in thrombosis, in which platelet activation and aggregation are important determinants of thrombus initiation and development, and may contribute to the beneficial effects of matico intake in the prevention of cardiovascular diseases. PMID- 29321992 TI - Alterations of haemodynamic parameters in spontaneously hypertensive rats by Aristolochia ringens Vahl. (Aristolochiaceae). AB - Aristolochia ringens Vahl. (Aristolochiaceae (AR); ma dou ling) is used traditionally in Nigeria for the management of various disorders including oedema. Preliminary investigation revealed its modulatory effect on the cardiovascular system. This study was aimed at investigating the effect of the aqueous root extract of A. ringens (AR) on haemodynamic parameters of spontaneously hypertensive rats (SHRs). The effect of oral subacute (21 days) and intravenous acute exposure of SHRs to the extract were assessed using tail cuff and carotid artery canulation methods respectively. In the latter, the effect of chloroform, butanol and aqueous fractions of AR were also evaluated. The extract significantly reduced systolic and diastolic blood pressures in SHRs, with peak reductions of 20.3% and 26.7% respectively at 50 mg/kg by the 21st day of oral subacute exposure. Upon intravenous exposure, AR (50 mg/kg) reduced systolic and diastolic blood pressure by as much as 53.4 +/- 2.2 and 49.2 +/- 2.8 mmHg respectively. A dose-dependent reduction in heart rate, significant at 25 and 50 mg/kg was also observed. Hexamethonium (20 mg/kg) and atropine (1 mg/kg) inhibited the extract's reduction of systolic blood pressure, diastolic blood pressure and heart rate significantly. The extract's butanol fraction produced the greatest systolic and diastolic blood pressures reduction of 67.0 +/- 3.8 and 68.4 mmHg respectively at 25 mg/kg and heart rate reduction of 40 +/- 7 beats per minute at 50 mg/kg. HPLC analysis revealed the presence of 4-hydroxybenzoic acid and quercetin in AR. The extract's alterations of haemodynamic parameters in this study show that it has hypotensive effect on spontaneously hypertensive rats. PMID- 29321993 TI - Sansoninto, a traditional herbal medicine, ameliorates behavioral abnormalities and down-regulation of early growth response-1 expression in mice exposed to social isolation stress. AB - Social isolation (SI) mice exhibit behavioral abnormalities such as impairments of sociability- and attention-like behaviors, offering an animal model of neurodevelopmental disorders such as attention-deficit/hyperactivity disorder (ADHD). This study aimed to identify the effects of Sansoninto (SST; suan zao ren tang) on the psychiatric symptoms related to ADHD using SI mice. Four-week-old mice were socially isolated during the experimental period, and SST administration (800 or 2400 mg/kg, p.o.) was started at 2 weeks after starting SI. SST ameliorated SI-induced impairments of sociability- and attention-like behaviors in a dose-dependent manner, and tended to ameliorate contextual- and auditory-dependent fear memory deficit. Moreover, the expression level of Egr-1 was down-regulated by SI stress, and was restored by a high dose of SST. These findings suggest that SST is useful for improvement of psychiatric disorders such as ADHD. PMID- 29321994 TI - The effect of ethanolic extract of Thymus kotschyanus on cancer cell growth in vitro and depression-like behavior in the mouse. AB - Cancer and depression are known as two of the most debilitating disease and disorder increasing evidence suggest an urgent need for new therapeutic agents with lower toxicity and high efficacy. Some Thyme species extracts have remarkably been shown to positively affect depression and cancer cells. In the present study, we investigated the effect of Thymus kotschyanus on depression and cancer cells. To this end, in experiment 1, NMRI mice were treated orally with the ethanolic extract of T. kotschyanus (50, 150 and 250 mg/ml) for seven days and then depression-like behavior was measured by Forced Swim Test (FST) and Tail Suspension Test (TST). In experiment 2, the pharmacological effect of the extract on the lung (A549) and cervical (Hela) cancer cell lines was also evaluated by MTT (3-(4,5-Dimethylthiazol-2-Yl)-2,5-Diphenyltetrazolium Bromide) in various concentration_(10, 5, 2.5, 1.25, 0.63, 0.31, 0.15 and 0.08 mg/ml). The results indicated that T. kotschyanus extract treatment (150 and 250 mg/kg) decreased depression-like behavior in the FST and TST tests in adult mice. Moreover, the treatment inhibited cancer cell growth and viability in a dose and time-dependent manner. Collectively these findings suggest that T. kotschyanus have antidepressant and anticancer effects. PMID- 29321995 TI - Anticonvulsant effect of ethanolic extract of Cyperus articulatus L. leaves on pentylenetetrazol induced seizure in mice. AB - Cyperus articulatus (CA) rhizomes have demonstrated different properties on nervous system. However, the leaves still have not studied to treat epilepsy. The aim of this study was to determine the effect of CA ethanolic extract on pentylenetetrazol (PTZ) induced seizures in mice as well as measuring its antioxidant activity in vivo and in vitro. Mice were divided into five groups: (1) control (PTZ 80 mg/kg; i.p.), (2) PTZ-Diazepam (1 mg/kg; i.p.), (3-5) PTZ-CA 50, PTZ-CA 150 and PTZ-CA 300 (50, 150 and 300 mg/kg of CA extract, 30 min prior to each PTZ injection). The PTZ-CA 150 group showed lower seizure scores (P < 0.01), latency (P < 0.01), frequency (P < 0.01) and duration (P < 0.01) than control group. The antioxidant activity of CA extract scavenged DPPH radical showed IC 50 = 16.9 +/- 0.1 MUg/mL and TEAC = 2.28 +/- 0.08, mmol trolox/g of extract, the content of gamma amino butyric acid (GABA) and malondialdehyde (MDA) were significantly high (P < 0.01) at dose of 150 mg/kg (82 +/- 1.2 ng/g tissue; 1.0 +/- 2.2 mol/g tissue, respectively). The present research demonstrated that CA extract possesses a potential effect to prevent PTZ induced seizures, antioxidant activity in addition to increase GABA levels. PMID- 29321996 TI - Comparative evaluation of antimicrobial and antioxidant potential of ethanolic extract and its fractions of bark and leaves of Terminalia arjuna from north western Himalayas, India. AB - The present study was aimed to evaluate the antimicrobial and antioxidant potential of ethanolic extract and its different solvent fractions (chloroform, ethyl acetate, n-butanol and aqueous fraction) of bark and leaves of Terminalia arjuna. The antimicrobial activity was determined by disc diffusion and minimum inhibitory concentration (MIC) methods against six bacterial stains. The antioxidant activity was evaluated by using DPPH, FRAP and Nitric oxide (NO) scavenging assay. The total phenolics and flavonoid content were found to be higher in n-butanolic fraction of bark (294.6 +/- 8.1 mg/g GAE and 168.6 +/- 12.3 mg/g RE, respectively) and leaves (203.7 +/- 7.0 mg/g GAE and 144.8 +/- 11.1 mg/g RE, respectively). The maximum antimicrobial activity was shown by n-butanolic fraction of bark and leaves. The zone of inhibition of 15.0 +/- 0.7 mm, 15.5 +/- 0.7 mm, 15.0 +/- 1.5 mm, 15.5 +/- 0.7 mm, 15.0 +/- 0.7 mm, 15.0 +/- 0.7 mm was observed against Bacillus subtilis, Staphylococcus aureus, Eschericia coli, Klebsiella pneumoniae, Pseudomonas aeruginosa and Salmonella typhi respectively. In case of leaves extract, zone of inhibition of 13.5 +/- 0.7 mm, 16.5 +/- 0.7 mm, 14.0 +/- 0.5 mm, 15.0 +/- 0.5 mm, 13.5 +/- 0.7 mm, 14.0 +/- 0.7 mm was observed against B. subtilis, S. aureus, E. coli, K. pneumoniae, P. aeruginosa, S. typhi, respectively. The n-butanol fraction of bark [IC50-4.1 MUg/ml (DPPH), 21.0 MUM (FRAP), 3.3 MUg/ml (NO)] and leaves [IC50-4.8 MUg/ml (DPPH), 28.9 MUM (FRAP), 3.2 MUg/ml (NO)] showed more antioxidant potential as compared to that of crude ethanolic extract, ethyl acetate fraction, chloroform fraction, aqueous fraction and even ascorbic acid. These results clearly indicated comparative antioxidant potential and antimicrobial activity in extracts of bark and leaves of T. arjuna. PMID- 29321997 TI - Ascertainment of pharmacological activities of Allamanda neriifolia Hook and Aegialitis rotundifolia Roxb used in Bangladesh: An in vitro study. AB - The present study was cherished to investigate in vitro thrombolytic, membrane stabilizing and antibacterial activities of Allamanda neriifolia and Aegialitis rotundifolia. Different types methanolic extracts of these two medicinal plants were tested for determining membrane stabilizing activity at a hypotonic solution and heat induce condition by comparing with reference standard acetyl salicylic acid (0.10 mg/mL), where thrombolytic activity assessment was done by employing Streptokinase as standard drug. Finally, antibacterial activity was performed against Staphylococcus aureus as a Gram-positive (+ve) and Salmonella typhi, Escherichia coli and Pseudomonas aeruginosa as Gram negative (-ve) bacteria by using disc diffusion method. In case of membrane stabilizing studies, crude methanolic extracts of A. neriifolia at 10 mg/ml concentration, more importantly, showed 45.80% & 23.52% whereas 10 mg/ml concentration of A. rotundifolia more significantly (p < 0.01) produced 38.40% and 27.04% inhibition of hemolysis for both experimental conditions. Dose-dependently increased activity was found in the thrombolytic study where 10 mg/ml concentration of both A. neriifolia and A. rotundifolia more significantly (p < 0.01) showed 41.91% and 32.76% lysis of clot respectively by in vitro clot lysis assay method. Crude methanolic extracts of A. rotundifolia did not show any suitable antibacterial property against the test bacteria. However, the gram positive (+ve) bacteria also seemed resistant against A. neriifolia extract but this crude methanolic extracts was found to generate moderate antibacterial action against gram-negative (-ve) bacteria. The obtained results confirmed the presence of thrombolytic, membrane stabilizing activity for both plant extract along with moderate antibacterial activity for A. neriifolia. PMID- 29321998 TI - Effectiveness of two different herbal toothpaste formulations in the reduction of plaque and gingival inflammation in patients with established gingivitis - A randomized controlled trial. AB - Background: Plant based toothpastes have received great attention in reducing gingival inflammation. Studies show contrasting results regarding the effectiveness of these toothpastes. In the present study, the effectiveness of two herbal tooth paste formulations in the reduction of plaque and gingival inflammation was assessed. Nicotine content in the toothpastes was assessed using GCMS. Material and methods: 50 patients with established gingivitis were included in the study. The subjects were randomly assigned to either the test (Parodontax(r)) or the control (Colgate(r) herbal) group. There were 5 drop outs in the study in the control group after baseline examination. No prophylaxis was undertaken prior to commencement of the study, and no attempt was made to modify the participant's oral hygiene habits. A brief case history was recorded at baseline. The Turesky (1970) modification of the Quigley, Hein (1962) Plaque index (PI), the Loe and Silness (1963) Gingival Index (GI). Unstimulated salivary samples were collected at baseline and 30th day and the pH was measured using a salivary pH meter (CL-51B; Systronics New Delhi, India).Comparisons (intergroup and intragroup) were analysed by the t-test. Groups were also compared regarding age by means of t test, and association between group and sex was verified by means of the chi-square test. All statistical tests employed a level of significance of alpha = 0.05. There were reports of presence of nicotine and its derivatives in herbal toothpaste after the study was nearing completion. Hence we assessed for the presence of nicotine in both the toothpaste using the methods described by Aggarwal et al.24. Results: When the two groups (test and control groups) were evaluated, after 30 days, the test group presented an average 21.08% reduction in plaque and the control group showed 31.85% reduction in plaque scores. The mean reduction in gingival index (GI) scores was 25.92% and 19.14% in the test and control groups respectively. There was no significant difference between the groups in GI, PI and salivary pH levels. There was no evidence of nicotine or related compounds in both the tooth paste. Conclusion: Both herbal based dentifrices reduce plaque levels and gingival inflammation. But, it did not alter the pH of the saliva. However, there were no additional benefits of the Parodontax(r) toothpaste over Colgate(r) Herbal toothpaste. There was no evidence of nicotine or related compounds in both herbal toothpaste. PMID- 29321999 TI - Antioxidant and hepatoprotective effects of Capparis spinosa L. fractions and Quercetin on tert-butyl hydroperoxide- induced acute liver damage in mice. AB - The present study investigates the antioxidant and hepatoprotective effects of Capparis spinosa L. and Quercetin in tert-butyl hydroperoxide (t-BHP) induced acute liver damage. Different fractions of C. spinosa were examined for total phenolic content and antioxidant property. Among these fractions, hydroalcoholic extract was used to assess the hepatoprotective effect in tert-butyl hydroperoxide (t-BHP) induced hepatotoxicity model by determining serum biochemical markers, sleeping time and antioxidant assay such as reduced glutathione (GSH) as well as histopathological examination of liver tissues. The total phenolic and Quercetin contents of hydroalcoholic fraction were significantly higher than other fractions. It also showed high antioxidant activity. Pretreatment with hydroalcoholic fraction at the dose of 400 mg/kg and Quercetin at the dose of 20 mg/kg showed liver protection against t-BHP induced hepatic injury, as it was evident by a significant decrease in serum enzymes marker, sleeping time and MDA and an increase in the GSH, SOD and CAT activities confirmed by pathology tests. The final results ascertained the hepatoprotective and antioxidant effects of C. spinosa and Quercetin in a dose-dependent manner. Moreover, this study suggests that possible mechanism of this protection may be associated with its property of scavenging free radicals which may be due to the presence of phenolic compounds. PMID- 29322000 TI - Effects of cinnamon supplementation on antioxidant status and serum lipids in women with polycystic ovary syndrome. AB - Background: The objectives of study were to investigate the effects of cinnamon supplementation on antioxidant status and serum lipids in women with polycystic ovary syndrome (PCOS). Methods: This double-blind randomized controlled clinical trial was conducted on 84 overweight or obese PCOS patients; aged 20-38 years. Subjects in cinnamon (n = 42) and placebo (n = 42) groups were given 3 cinnamon capsules (each one contained 500 mg cinnamon) or placebo daily for 8 weeks. Fasting blood samples, anthropometric measurements and dietary intake data were gathered at the beginning and at the end of the study. Independent t test, paired t test and analysis of covariance were used to analyze of data. Results: Cinnamon significantly increased serum total antioxidant capacity (P = 0.005). Malondialdehyde was significantly decreased compared with placebo (P = 0.014). Cinnamon supplementation significantly improved serum level of total cholesterol, low-density lipoprotein cholesterol and high-density lipoprotein cholesterol (all P < 0.05). No significant effect was detected on serum triglyceride level. Conclusions: Cinnamon supplementation improved antioxidant status and serum lipid profile in women with PCOS and may be applicable for reducing PCOS risk factors. PMID- 29322001 TI - Evaluation of the antidiabetic property of aqueous leaves extract of Zanthoxylum armatum DC. using in vivo and in vitro approaches. AB - The present study was designed to evaluate the antidiabetic potential of the aqueous leaves extract of Zanthoxylum armatum DC. leaves using in vivo and in vitro approaches. For in vivo studies, blood glucose level was monitored at different intervals after administration of varying doses of the extract for its hypoglycemic (100-6000 mg/kg b.w.) and antihyperglycemic (250 mg/kg b.w.) effect in normoglycemic and diabetic mice. In vitro enzymatic inhibition activity was tested against alpha-amylase, alpha- and beta-glucosidase and lipase. Additionally hydroxyl radical, hydrogen peroxide scavenging assay and phytochemical screening were also performed. Element analysis of the plant was studied by Atomic Absorption Spectrometry (AAS) and Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). The plant extract showed significant hypoglycemic and antihyperglycemic effect in normoglycemic and diabetic mice. The IC50 values of extract for alpha-amylase, beta-glucosidase, lipase, hydroxyl radical scavenging activity, hydrogen peroxide scavenging activity were 7.40 mg/ml, 0.30 mg/ml, 8.35 mg/ml, 3.25 mg/ml, 9.62 mg/ml respectively and the percentage of inhibition for alpha-glucosidase was 79.82% at 0.8 mg/ml. In vitro studies were compared with their respective standards. Elemental analysis revealed the presence of essential elements such as Mg, V, Fe, Cr, Zn, Cu, Mo, Mn, K, Ca, P and Sr which are all known to play a role in regulating blood glucose. The results demonstrate that Z. armatum aqueous leaves extract possess antidiabetic property in both in vivo and in vitro condition. PMID- 29322002 TI - Complementary and alternative medicine use in thalassemia patients in Shiraz, southern Iran: A cross-sectional study. AB - This study aimed to determine the frequency and pattern of complementary and alternative medicine (CAM) use in thalassemia patients in south of Iran. The survey was done using a validated questionnaire which was distributed among 122 thalassemia patients. Only 108 questionnaires were completed and turned back (response rate 88.5%). Patients referred to an outpatient thalassemia clinic in Shiraz, southern Iran for blood transfusion. The mean age of the patients was 22.9 +/- 7.9 years (range 4-45 years) with female/male ratio 1.84. Seventy four (68.5%) of the responders used CAM at least once during their life, and about half of them used it concurrently with their conventional treatments. The most reported CAM product was mint juice (50%). The most common reason of CAM use was increased general health. The most common information source about CAM was physicians who were the most trusted source as well. CAM is frequently being used in thalassemia patients to ensure their sense of well-being and help them overcome the complications of their illnesses. PMID- 29322003 TI - Preliminary phytochemical analysis and in vivo evaluation of antipyretic effects of hydro-methanolic extract of Cleome scaposa leaves. AB - Cleome scaposa has been associated with the prevention of many diseases as fever, abdominal complaints and cancer. But its antipyretic effect is not reported so far. The aim of this study was to assess the efficacy of C. scaposa in reducing temperature in Baker's yeast-induced fever model of rabbits. Rabbits were randomized into 4 groups (n = 24). Fever was induced in by Saccharomyces cerevisae (3 mL/kg of 10% suspension subcutaneous) in all study groups. Afterward, group 1, 2, 3 and 4 were orally administered with paracetamol 150 mg/kg b. wt., distilled water, C. scaposa 250 and 500 mg/kg b. wt. respectively. 500 mg/kg dosage was selected after dose fixation study. The standard control was paracetamol. Rectal temperature was recorded with the help of a digital thermometer. ANOVA followed by post hoc test was applied for statistical analysis of results. Results of the study indicate that C. scaposa possesses antipyretic activity comparable to that of standard drug paracetamol as it exhibited comparable antipyretic potential against baker's yeast-induced fever in rabbits. This study confirms the traditional use of C. scaposa in fever. So, it can be an alternative therapeutic choice in fever. However, specific constituents responsible for its antipyretic activity should be evaluated. PMID- 29322004 TI - Thoughts modulate the expression of inflammatory genes and may improve the coronary blood flow in patients after a myocardial infarction. AB - Background: Mental stress is one of the main risk factors for cardiovascular disease. Meditation and music listening are two techniques that are able to counteract it through the activation of specific brain areas, eliciting the so called Relaxing Response (RR). Epidemiological evidence reveals that the RR practice has a beneficial prognostic impact on patients after myocardial infarction. We aimed to study the possible molecular mechanisms of RR underlying these findings. Methods: We enrolled 30 consecutive patients after myocardial infarction and 10 healthy controls. 10 patients were taught to meditate, 10 to appreciate music and 10 did not carry out any intervention and served as controls. After training, and after 60 days of RR practice, we studied the individual variations, before and after the relaxation sessions, of the vital signs, the electrocardiographic and echocardiographic parameters along with coronary flow reserve (CFR) and the carotid's intima media thickness (IMT). Neuro endocrine-immune (NEI) messengers and the expression of inflammatory genes (p53, Nuclear factor Kappa B (NfKB), and toll like receptor 4 (TLR4)) in circulating peripheral blood mononuclear cells were also all observed. Results: The RR results in a reduction of NEI molecules (p < 0.05) and oxidative stress (p < 0.001). The expression of the genes p53, NFkB and TLR4 is reduced after the RR and also at 60 days (p < 0.001). The CFR increases with the relaxation (p < 0.001) and the IMT regressed significantly (p < 0.001) after 6 months of RR practice. Conclusions: The RR helps to advantageously modulate the expression of inflammatory genes through a cascade of NEI messengers improving, over time, microvascular function and the arteriosclerotic process. PMID- 29322005 TI - Self microemulsifying formulation of Lagerstroemia speciosa against chemically induced hepatotoxicity. AB - Self microemulsifying formulation is an approach used for enhancing the bioavailability of poorly soluble molecules due to their lipidic nature and small particle size. The objective of the present study was to evaluate the hepatoprotective activity of poorly soluble hydroxy- and polyhydroxy-organic phytomolecules rich Lagerstroemia speciosa leaves extract in modern formulation i.e. "Self microemulsifying System". Different doses of SME (Self microemulsifying) formulation of L. speciosa leaves extract were evaluated for the hepatoprotective activity against carbon tetrachloride induced liver toxicity in rats. The parameters evaluated were (a) biochemical parameters like serum enzymes: aspartate aminotransferase (AST), serum glutamate pyruvate transaminase (ALT), serum alkaline phosphatase (ALP) and total bilirubin (b) liver antioxidant parameters as estimation of Lipid peroxidation (LPO), catalase (CAT), Superoxide dismutase (SOD) activity and concentration of reduced glutathione (GSH). Oral administration of SME formulation provided the significant protection in marker enzyme of treated group at 100 mg/kg, p.o. as AST (P < 0.001), ALT (P < 0.001), ALP (P < 0.001) and total bilirubin (P < 0.001) comparable to the group treated with silymarin. Treatment with SME formulation at the doses of 100 mg/kg, p.o. significantly prevented the rise in levels of LPO significantly (P < 0.001). The GSH, SOD and CAT contents had significantly (P < 0.001) increased in SME formulation treated groups whereas carbon tetrachloride intoxicated group had shown significant decrease in these parameters compared to control group. Formulation at the dose 100 mg/kg, p.o. has shown maximum protection which was almost comparable to those of the normal control and standard. The histological observations further uphold the results for hepatoprotective activity. PMID- 29322006 TI - Attenuation of quorum-sensing-dependent virulence factors and biofilm formation by medicinal plants against antibiotic resistant Pseudomonas aeruginosa. AB - Pseudomonas aeruginosa use small signaling molecules such as acyl homoserine lactones (AHLs), which play an important role in release virulence factors and toxin for further establishment of host infection. Thus, involving with the QS system would provide alternative ways of preventing the pathogenicity. In the present study, totally six medicinal plants (Terminalia bellerica, Celastrus paniculatus, Kingiodendron pinnatum, Schleichera oleosa, Melastoma malabathricum, Garcinia gummi-gutta) were screened for anti-QS activity using biomonitor strain of Chromobacterium violaceum CV12472. The primary screening of antimicrobial activity of all the plant extracts have inhibited the growth of tested bacterial species. Of these at the sub-minimum inhibitory concentration the methanol extract of T. bellerica (0.0625-0.5 mg/ml) has significantly inhibited violacein production (20.07-66.22%) in C. violaceum (CV12472). Consequently, the extract of T. bellerica has reduced the production of pyocyanin, exopolysaccharide and biofilm formation in P. aeruginosa strains. Fluorescence and scanning electron microscopy analysis confirmed the reduction of biofilm formation in P. aeruginosa strains when treated with T. bellerica. GC-MS analysis showed the active compounds inhibited the production of virulence factors of P. aeruginosa. The results suggest the possible use of this T. bellerica as an anti-QS and anti biofilm agent to control Pseudomonas infection. Interference of QS provides an important means for the inhibition of bacterial virulence and thus aids in treatment strategies. PMID- 29322007 TI - Co-administration effects of aqueous extract of turnip leaf and metformin in diabetic rats. AB - Background: There is a variety of experimentally proven medicinal plants having antidiabetic properties but data on herb-drug interaction are very limited. Earlier studies indicated that aqueous extract of turnip leaf (AETL) has hypoglycemic potential in diabetic animals. The present study was conducted to evaluate co-administration effects of AETL and metformin, a commonly used antidiabetic drug, in diabetic rats. Methods: Metformin at the two different doses (50,100 mg/kg) and AETL at the dose of 400 mg/kg (separately or concurrent with metformin) were orally given to streptozotocin-induced diabetic rats for 4 weeks daily. Fasting blood glucose (FBG) was measured at the times 0, 7, 14, 21 and 28 days after investigation. At the end of study, liver enzymes activity [aspartate aminotransferase (AST) and alanine aminotransferase (ALT)] as well as liver histopathology were evaluated. Results: Both treatments could significantly decrease FBG levels when they administrated separately. Interestingly, co administration of AETL and metformin in a dose dependent manner significantly improved hypoglycemic activity of metformin. While neither metformin nor AETL could ameliorate liver alterations alone, but in concomitant therapy they efficiently attenuated liver enzymes elevation and histological damages. Conclusion: The results of the present study demonstrate that combination of metformin with AETL enhance the prior effectiveness and reduced the latter adverse effects by a synergistic interaction. PMID- 29322008 TI - Inhibitory effects of Tabernaemontana divaricata root extract on oxidative stress and neuronal loss induced by amyloid beta25-35 peptide in mice. AB - In Alzheimer's disease, there are numerous amyloid plaques, neurofibrillary tangles, and neuronal loss in several brain areas. Oxidative stress is involved in the mechanisms of Abeta-peptide induced neurotoxicity by the generation of free radical oxidative stress that may lead to neurodegeneration. Tabernaemontana divaricata has various medical properties in Thai folklore medicine including prevent forgetfulness or improve memory. The present study aimed to investigate the effects of T. divaricata root extract (TDE) on Abeta25-35 peptides induced neuronal loss and oxidative stress in mice. Male ICR mice were administered with vehicle or TDE (250, 500, and 1000 mg/kg b.w., p.o.) for 28 consecutive days. Then, these mice were given a single intracerebroventricular (i.c.v.) injection of Abeta25-35 or phosphate buffer saline (PBS) (10 MUg/mouse). The novel object recognition (NOR) test was used to determine memory disturbance. In addition, the neuronal cells in the cerebral cortex and hippocampus were measured by using crystal violet staining and lipid peroxidation was determined by measuring the formation of thiobarbituric acid reactive substances. An i.c.v. injection of Abeta25-35 peptides could significantly induce memory impairment, increase level of lipid peroxidation including the neuronal loss in CA3 of hippocampus. However, the mice pretreated with TDE could prevent the memory loss, neuronal loss and decrease lipid peroxidation. These results suggest the potential therapeutic value in dementia of TDE through its antioxidant property. PMID- 29322009 TI - Improvement of spatial learning and memory, cortical gyrification patterns and brain oxidative stress markers in diabetic rats treated with Ficus deltoidea leaf extract and vitexin. AB - Despite the fact that Ficus deltoidea and vitexin played important roles in controlling hyperglycemia, an effective mitigation strategy dealing with cognitive deficit observed in diabetes, little is known about its neuroprotective effects. The study is aimed to determine changes in behavioral, gyrification patterns and brain oxidative stress markers in streptozotocin (STZ)-induced diabetic rats following F. deltoidea and vitexin treatments. Diabetic rats were treated orally with metformin, methanolic extract of F. deltoidea leaves and vitexin for eight weeks. Morris water maze (MWM) test was performed to evaluate learning and memory functions. The patterns of cortical gyrification were subsequently visualized using micro-computed tomography (micro-CT). Quantification of brain oxidative stress biomarkers, insulin, amylin as well as serum testosterone were measured using a spectrophotometer. The brain fatty acid composition was determined using gas chromatography (GC). Biochemical variation in brain was estimated using Fourier transform infrared (FT-IR) spectroscopy. Results showed that oral administration of F. deltoidea extract and vitexin to diabetic rats attenuated learning and memory impairment, along with several clusters of improved gyrification. Both treatments also caused a significant increase in the superoxide dismutase (SOD) and glutathione peroxidase (GPx) values, as well as a significant reduction of TBARS. Strikingly, improvement of cortical gyrification, spatial learning and memory are supported by serum testosterone levels, fatty acid composition of brain and FT-IR spectra. PMID- 29322010 TI - Beneficiary effect of Commiphora mukul ethanolic extract against high fructose diet induced abnormalities in carbohydrate and lipid metabolism in wistar rats. AB - The present study was proposed to elucidate the effect of Commiphora mukul gum resin elthanolic extract treatment on alterations in carbohydrate and lipid metabolisms in rats fed with high-fructose diet. Male Wistar rats were divided into four groups: two of these groups (group C and C+CM) were fed with standard pellet diet and the other two groups (group F and F+CM) were fed with high fructose (66 %) diet. C. mukul suspension in 5% Tween-80 in distilled water (200 mg/kg body weight/day) was administered orally to group C+CM and group F+CM. At the end of 60-day experimental period, biochemical parameters related to carbohydrate and lipid metabolisms were assayed. C. mukul treatment completely prevented the fructose-induced increased body weight, hyperglycemia, and hypertriglyceridemia. Hyperinsulinemia and insulin resistance observed in group F decreased significantly with C. mukul treatment in group F+CM. The alterations observed in the activities of enzymes of carbohydrate and lipid metabolisms and contents of hepatic tissue lipids in group F rats were significantly restored to near normal values by C. mukul treatment in group F+CM. In conclusion, our study demonstrated that C. mukul treatment is effective in preventing fructose-induced insulin resistance and hypertriglyceridemia while attenuating the fructose induced alterations in carbohydrate and lipid metabolisms by the extract which was further supported by histopathological results from liver samples which showed regeneration of the hepatocytes. This study suggests that the plant can be used as an adjuvant for the prevention and/or management of insulin resistance and disorders related to it. PMID- 29322011 TI - Safety evaluation of Bon-sante cleanser(r) polyherbal in male Wistar rats: Further investigations on androgenic and toxicological profile. AB - Background: The global increase in acceptance and use of herbal remedies in recent times is still accompanied with poor knowledge of their potential adverse effects and the toxicological implications of their use are underestimated. Methods: Bon-sante Cleanser(r) (BSC), a polyherbal containing Anogeissus leiocarpus, Terminalia ivorensis, Massularia acuminate and Macuna pruriens, is an "energizer and hormone booster". We assessed the effect of BSC on reproductive function after administration for 60 days in male Wistar rats. Rats (150-300 g) were assigned into four groups of 8/group. Control received distilled water (10 ml/kg) while other groups received BSC 250, 500 and 1000 mg/kg/day p.o. respectively. Animals were euthanized by cervical dislocation and samples collected for analysis. Results: BSC (250 mg/kg) elevated (p < 0.05) follicle stimulating hormone and luteinizing hormone levels respectively. BSC decreased sperm motility and the live-dead ratio at 1000 mg/kg and reduced reproductive hormone at 500 mg/kg and 1000 mg/kg respectively. BSC at 500 mg/kg increased (p < 0.05, F = 3.18-13.21) testicular reduced glutathione level (50.3%) and catalase (43.7%) but not activities of superoxide dismutase, glutathione S-transferase, and malondialdehyde level. Further, BSC influenced Mg, Zn, Cu, P, Mn, Ni and Fe levels (p < 0.05). BSC (1000 mg/kg) decreased testis weight (p < 0.05) and induced mild inflammation characterized by atrophic tubules. Conclusion: Overall, our data suggest BSC at low doses may increase reproductive hormones regulated by FSH and LH as observed in this study. However, BSC administration should be done with caution as it may induce reproductive toxicity in large doses. PMID- 29322012 TI - Inhibition of aqueous extracts of Solanum nigrum (AESN) on oral cancer through regulation of mitochondrial fission. AB - The present study is designed to investigate the anti-oral cancer properties of Solanum nigrum on oral squamous cell carcinoma. S. nigrum is a Chinese herb used for suppression of various cancers. However, the inhibition of S. nigrum on oral cancer is unclear. Therefore, human oral squamous cancer cells (SCC)-4 were used to evaluate the effect of aqueous extracts of S. nigrum (AESN) on cancer cell proliferation, cell cycle, mitochondrial function and apoptosis. The SCC-4 cells were treated by AESN to evaluate the inhibition of cell proliferation and mitochondrial function in vitro. Our results suggested that AESN markedly increased reactive oxygen species production. AESN also promoted caspase-9 and caspase-3 activation and subsequent triggering of the mitochondrial apoptotic pathway. The inhibition of glucose uptake was alleviated mediated by a dose dependent manner in SCC-4 cells with AESN treatment for 24 h, resulting in mitochondrial fission. These results suggested that AESN has potential to be used as a functional food in adjuvant chemotherapy for treating human oral cancer by suppression of mitochondrial function. PMID- 29322013 TI - Dillenia indica L. attenuates diabetic nephropathy via inhibition of advanced glycation end products accumulation in STZ-nicotinamide induced diabetic rats. AB - The present study was aimed to evaluate advanced glycation end products (AGEs) inhibitory activity of alcohol and hydro-alcohol extract (DAE and DHE) of Dillenia indica L. (Family: Dilleniaceae) and its potential in treatment of diabetic nephropathy by targeting markers of oxidative stress. D. indica was evaluated for its in vitro inhibitory activity against formation of AGEs by using bovine serum albumin. Diabetes was induced in male Wistar rats by streptozotocin (65 mg/kg i.p.) 15 min after nicotinamide (230 mg/kg, i.p.) administration. Diabetic rats were treated with different doses of extracts (100, 200 and 400 mg/kg) to analyze their nephroprotective effect. Tissue antioxidant enzymes level was measured along with the formation of AGEs in kidney to assess the effect of D. indica in ameliorating oxidative stress. D. indica showed significant inhibition of AGEs formation in vitro. D. indica produced significant attenuation in the glycemic status, renal parameter, lipid profile and level of antioxidant enzymes proving efficacy in diabetic nephropathy. Moreover, D. indica produced significant reduction in the formation of AGEs in kidneys. The present study concludes that D. indica as a possible therapeutic agent against diabetic nephropathy. PMID- 29322014 TI - Protective effects of salep against isoniazid liver toxicity in wistar rats. AB - Introduction: Isoniazid is a drug for treatment of tuberculosis. One of the main side effects of this drug is hepatotoxicity, which is a major cause of treatment interruption in tuberculosis. This study is about the preventive effect of Salep on this side effect of isoniazid. Materials and methods: This study is an experimental study in which the preventive effect of salep on isoniazid hepatotoxicity is evaluated. In this study 56 rats were randomly placed in 7 eight members groups including: control group, sham, isoniazid and four isoniazid/salep groups. At the end of the study the laboratory criteria and histological features of liver toxicity were compared in different mentioned groups. Results: Significant lower serum levels of liver enzymes, billirubin, MDA and TOC; and significant higher levels of TAC and total proteins, were revealed in isoniazid/salep group in compare to isoniazid alone group.In addition, histological studies had not showed liver injury in isoniazid/salep group, while there was significant liver injury in isoniazid alone group. Conclusions: Orchid extract (salep), probably because of its antioxidant properties, prevent the destructive effects of isoniazid on the liver. PMID- 29322015 TI - Kingiodendron pinnatum, a pharmacologically effective alternative for Saraca asoca in an Ayurvedic preparation, Asokarishta. AB - Saraca asoca (Fabaceae) is a prime ingredient in Asokarishta, a well-known Ayurvedic preparation for gynecological ailments. Due to scarcity, adulteration or substitution of related raw drugs is a common practice in its preparation. The bark of Kingiodendron pinnatum (Roxb. ex DC.) Harms, morphologically similar to S. asoca (Asoka) is a widely used substitute. The present study aimed to evaluate the pharmacological effectiveness of K. pinnatum as an alternative for S. asoca in Asokarishta by determining the inhibitory effect of estrogen induced uterus endometrial thickening in immature female rats. Arishta was prepared using S. asoca and with the substitute, K. pinnatum as per Ayurvedic Pharmacopeia. Uterus endometrial thickening was induced by the administration of estradiol (20 MUg/kg b. wt, i.p) to 8-day-old rats for 5 alternate days. On day 16, following estradiol administration, the serum estrogen level was found elevated to 156.5 +/ 8 pg/ml from the normal value 32.4 +/- 5 pg/ml and consequently increased the thickness of uterus endometrium from 16.7 +/- 1.4 to 75.2 +/- 15.3 MUm. Upon oral administration of 400 MUl/kg b. wt Asokarishta (ASA) and Arishta made with K. pinnatum (AKP), the thickening was reduced to 42.5 +/- 12.7 and 47.1 +/- 10.5 MUm and the estrogen level diminished to 102.6 +/- 10 and 97.3 +/- 8 pg/ml, respectively. Arishta also reduced the chronic/acute inflammations in mice and improved the antioxidant status of rats. No toxic symptom was observed in the animals by the treatment of Arishta. The study supports the use of K. pinnatum as an alternative to S. asoca in Asokarishta and gives a scientific validation for Asokarishta in gynecological ailments. PMID- 29322016 TI - Evaluation of in vitro and in vivo antileishmanial potential of bergenin rich Bergenia ligulata (Wall.) Engl. root extract against visceral leishmaniasis in inbred BALB/c mice through immunomodulation. AB - Background: Medicinal plants with immunomodulatory properties can provide good alternative therapeutics for curing visceral leishmaniasis. Bergenia ligulata (Wall.) Engl. is an interesting plant with strong antioxidant, antimicrobial, immunomodulatory and hepatoprotective properties. Aim: The present study was planned to determine the antileishmanial activity of plant extract by modulating the immune responses of inbred BALB/c mice. Methodology: Bergenin, the principle active component of B. ligulata, was quantitated in crude extract by performing RP-HPLC. The therapeutic potential was assessed through in vitro antileishmanial activity and in mice model through parasite load, cytokine assays, IgG antibody levels, DTH responses, histopathology and biochemical enzyme assays. Results: B. ligulata showed the presence of glycosides, saponins, carbohydrates, tannins, flavonoids and bergenin which contributed to the antileishmanial activity of extract with IC50 of 22.70 MUg/mL. Furthermore, the higher dose significantly reduced the parasite load by 95.56 %. The reduction was further associated with significant enhancement of IL-12 and IFN-gamma levels in comparison to IL-10 and IL-4 cytokines. The switching towards Th1 type of immune response was also confirmed by elevated antibody levels of IgG2a isotype as compared to IgG1 as well as increased DTH responses. The histology of liver and kidney further complimented the non toxic nature of plant extract in addition to its negligible toxicity on HeLa cells. Conclusions: The current study revealed the significant antileishmanial and immunomodulatory properties of this plant extract against murine visceral leishmaniasis. Further, the bioactive components will be explored to assess their efficacy for the development of safe and cost effective drug. PMID- 29322017 TI - Clinical profile and long-term follow-up of 32 patients with postoperative permanent hypoparathyroidism. AB - Background: Parathyroid failure is the most common complication after total thyroidectomy but permanent impairment of the parathyroid function is unusual. Limited data is available assessing long-term follow-up, quality of life and complications occurring in patients with permanent hypoparathyroidism (PH). We aimed to assess the incidence of complications derived from PH status, their influence on the quality of life perceived by PH patients and its relation to standard medical treatment with calcium salts and active vitamin D analogues. Methods: Cross-sectional observational study of consecutive patients undergoing total thyroidectomy who developed PH and were followed at least twice a year at a referral endocrine surgery unit. PH was defined as intact parathyroid hormone (iPTH) levels <13 pg/mL and the need for replacement therapy with calcium and/or vitamin D for at least 1 year after surgery. Quality of life was assessed using the SF-36 questionnaire. Data regarding doses and type of vitamin D analogues and calcium supplementation, serum calcium fluctuations, bone densitometry and renal ultrasound were recorded. Results: The cohort included 32 patients (3 male/29 female) with a mean age of 51.2+/-15.2 years. The mean follow-up was 78+/-68 months and the total follow-up length was 70,080 PH patient/days. Five (15.6%) patients showed a decreased renal function. At least one clinical adverse event was observed in 18 (56.3%) patients. There was a slight decrease of the punctuation in the SF-36 questionnaire for the perceived quality of life that was only significant for the emotional role. Conclusions: PH and its treatment carry a mild to moderate burden of illness if followed closely. During a mean follow-up of nearly 6 years, only half of the patients suffered a relevant clinical event with little impact on their quality of life. PMID- 29322018 TI - A nomogram to predict the likelihood of permanent hypoparathyroidism after total thyroidectomy based on delayed serum calcium and iPTH measurements. AB - Background: Retrospective studies have shown that delayed high-normal serum calcium and detectable iPTH are independent variables positively influencing outcome of prolonged parathyroid failure after total thyroidectomy (TT). The aim of the present study was to examine prospectively the ability of these two variables to predict permanent hypoparathyroidism in patients under replacement therapy for postoperative hypocalcemia. Methods: Prospective observational multicenter study of patients undergoing TT followed by postoperative parathyroid failure (serum calcium <8 mg/dL within 24 h and PTH <15 pg/mL 4 h after surgery). Serum calcium, vitamin D and iPTH were determined before thyroidectomy, 24 h after surgery, at 1 month and then periodically until recovery of the parathyroid function or permanent hypoparathyroidism was diagnosed after at least 1 year follow-up. Results: Some 145 patients with postoperative hypocalcemia were investigated [s-Ca24h 7.5 (0.5) mg/dL]. Hypocalcemia recovered within 30 days in 91 (63%) patients and 54 (37%) developed protracted hypoparathyroidism {iPTH 5.8 [4] pg/mL at 1 month}, of whom 32 recovered within 1 year and 22 developed permanent hypoparathyroidism. Protracted hypoparathyroidism was related to few parathyroid glands remaining in situ (PGRIS). Serum calcium concentration (mg/dL) at 1 postoperative month correlated positively with the rate of recovery (percent) from protracted hypoparathyroidism: <8.5 (20%); 8.5-9 (29%); 9.1-9.5 (70%); 9.6-10 (89%); >10 (83%) (P=0.013). Serum iPTH at 1 month was also higher (7.3 vs. 3.7 pg/mL; P=0.002) in recovered protracted hypoparathyroidism. The combination of both variables predicts the likelihood of recovery of the parathyroid function with >90% accuracy. Conclusions: High-normal serum calcium and low but detectable iPTH concentrations at 1 month after TT were associated with better outcome of protracted hypoparathyroidism. A nomogram combining both variables may guide medical treatment and monitoring of post-thyroidectomy prolonged hypoparathyroidism. PMID- 29322019 TI - To identify or not to identify parathyroid glands during total thyroidectomy. AB - Hypoparathyroidism is one of the most common complications after total thyroidectomy and may impose a significant burden to both the patient and clinician. The extent of thyroid resection, surgical techniques, concomitant central neck dissection, parathyroid gland (PG) autotransplantation and inadvertent parathyroidectomy have long been some of the risk factors for postoperative hypoparathyroidism. Although routine identification of PGs has traditionally been advocated by surgeons, recent evidence has suggested that perhaps identifying fewer number of in situ PGs during surgery (i.e., selective identification) may further lower the risk of hypoparathyroidism. One explanation is that visual identification may often lead to subtle damages to the nearby blood supply of the in situ PGs and that may increase the risk of hypoparathyroidism. However, it is worth highlighting the current literature supporting either approach (i.e., routine vs. selective) remains scarce and because of the significant differences in study design, inclusions, definitions and management protocol between studies, a pooled analysis on this important but controversial topic remains an impossible task. Furthermore, it is worth nothing that identification of PGs does not equal safe preservation, as some studies demonstrated that it is not the number of PGs identified, but the number of PG preserved in situ that matters. Therefore a non-invasive, objective and reliable way to localize PGs and assess their viability intra-operatively is warranted. In this aspect, modern technology such as the indocyanine green (ICG) as near infrared fluorescent dye for real-time in situ PG perfusion monitoring may have a potential role in the future. PMID- 29322020 TI - A reappraisal of vascular anatomy of the parathyroid gland based on fluorescence techniques. AB - Identification of the parathyroid glands (PGs) during thyroid surgery may prevent their inadvertent surgical removal and prevent postoperative hypoparathyroidism. However, identification of the PGs does not guarantee their function, and their vascular supply needs to be preserved as well. The recent introduction of intraoperative indocyanine green (ICG) fluorescent angiography of the PGs during thyroid surgery allows for the appraisal of the vascular anatomy and evaluation of PG function. The use of this tool could lead to a significant reduction in the rate of postoperative hypoparathyroidism, as it allows surgeons to adapt their surgical technique for the preservation of the PGs. ICG fluorescent angiography is currently the only available real-time tool to assess the vascular blood supply of each individual PG intraoperatively and can thus assist surgeons in their decision-making. Herein, we review the relevant literature. PMID- 29322021 TI - The role and timing of parathyroid hormone determination after total thyroidectomy. AB - Postoperative hypocalcemia is a common complication of total thyroidectomy resulting from manipulation, resection, or devascularization of the parathyroid glands. Parathyroid hormone (PTH) levels assessed in the perioperative period have been used to predict development of hypocalcemia. Articles examining the role of PTH measurement in the perioperative period following total or completion thyroidectomy are reviewed. Focus is placed on the timing of PTH measurement and the ability to predict which patients will develop hypocalcemia requiring supplementation. Postoperative PTH determination is highly accurate in predicting the development of hypocalcemia. Studies have examined PTH levels drawn at differing time points, ranging from intraoperatively until postoperative day 1 (POD1) with similar accuracy. This data is used to guide postoperative selective calcium and calcitriol supplementation in patients at highest risk for hypocalcemia. When evaluated within the first 4 hours postoperatively, predictive accuracy is maintained but can allow for earlier discharge for those patients at lower risk. Alternatively, some authors argue for routine supplementation, which can reduce the rate of postoperative hypocalcemia but increases the rate of unnecessary supplementation and potential risks associated with hypercalcemia. PTH determination at four hours after total thyroidectomy is an accurate predictor of hypocalcemia and can guide selective calcium supplementation for those at high risk, as well as facilitate a safe earlier hospital discharge for those at low risk of developing postoperative hypocalcemia. PMID- 29322022 TI - Less than total thyroidectomy for goiter: when and how? AB - Benign goiter is the most common endocrine disease that requires surgery, especially in endemic areas suffering from iodine-deficiency. Recent European and American guidelines recommended total thyroidectomy for the surgical treatment of multinodular goiter. Total thyroidectomy has now become the technique of choice and is widely considered the most reliable approach in preventing recurrence. Nevertheless, total thyroidectomy carries a substantial risk in terms of hypoparathyroidism and the morbidity associated with injury to the inferior laryngeal nerve. In this context, partial/less-than-total thyroidectomy is being considered once again as a viable alternative. This review will discuss the extent of thyroid surgery for benign disease and the impact of the surgical protocol on the patient- and surgeon-specific risk factors for specific complication rates. PMID- 29322023 TI - Incidence, prevalence and risk factors for post-surgical hypocalcaemia and hypoparathyroidism. AB - Hypocalcaemia following thyroid surgery is common and is associated with significant short and long term morbidity. Damage to or devascularisation of parathyroid glands is the predominant underlying mechanism; although other factors such as hungry bone syndrome may occasionally contribute to it in the immediate post-operative period. The reported incidence of post-surgical hypocalcaemia and/or hypoparathyroidism (PoSH) varies significantly in the literature; the variation thought to be at least partly due to differences in the definitions used. Figures on the prevalence of chronic or long term post-surgical hypocalcaemia in the population are unclear. Risk factors for PoSH have been extensively studied in recent years and may be classified into patient, disease and surgery related factors. Some risk factors are modifiable; but both modifiable and non-modifiable factors help in generating a risk profile that may be used to select patients for preventative measures and/or changes in surgical strategy. This narrative review discusses recent literature on the incidence, prevalence and risk factors for PoSH. PMID- 29322024 TI - Hypocalcaemia and permanent hypoparathyroidism after total/bilateral thyroidectomy in the BAETS Registry. AB - The UK Registry of Endocrine and Thyroid Surgeons (UKRETS) has been operated by the British Association of Endocrine and Thyroid Surgeons (BAETS) and Dendrite Clinical Systems Ltd. in a web-based electronic format since 2004. Data on over 90,000 endocrine procedures have been collected to date. Analysis of those cases undergoing bilateral thyroid resections in the interval July 2010 to June 2015 demonstrates that hypocalcaemia remains the commonest complication of thyroid surgery. After first-time total thyroidectomy, 23.6% of patients develop hypocalcaemia, defined as a serum calcium <2.10 mmol/L (or <1.20 mmol/L ionized calcium) on the first post-operative day. Most require treatment with calcium +/- vitamin D supplements, with around 38% of all patients being treated by the time of discharge from the index admission. By 6 months post-operative, 7.3% of patients remain on calcium/vitamin D supplements, reflecting persistent (though not necessarily permanent) hypoparathyroidism. Risk factors for persistent hypocalcaemia are principally concomitant level VI lymph node dissection [odds ratio (OR) =2.73]; re-operative surgery (OR =1.44); and inter-surgeon variation. PMID- 29322026 TI - The PGRIS and parathyroid splinting concepts for the analysis and prognosis of protracted hypoparathyroidism. AB - Most patients with hypocalcemia after total thyroidectomy will recover the parathyroid function in a few weeks, but some 20-30% of them will still be in the need for replacement therapy one month after surgery and about 5-10% of those will develop permanent hypoparathyroidism. Although postoperative hypocalcemia has been related to several demographic and metabolic causes, parathyroid hormone (PTH) decline, resulting from autotransplantation, inadvertent excision or devascularization of the parathyroid glands, is the common final pathway. The number of parathyroid glands remaining in situ (PGRIS) is a key variable to understand the pathogenesis of protracted hypoparathyroidism and the chances for restoration of the parathyroid function. Normal-high serum calcium concentration, probably achieved by a more intensive medical treatment at the time of hospital discharge, has been identified as an independent variable favoring recovery of the parathyroid function. This we refer to as parathyroid splinting, a hypothesis holding that putting the injured parathyroid parenchyma at rest after thyroidectomy may improve long-term outcome of protracted hypoparathyroidism. PMID- 29322025 TI - Short and long-term impact of parathyroid autotransplantation on parathyroid function after total thyroidectomy. AB - The most common complication of total thyroidectomy is parathyroid insufficiency. Acute, transient, post-operative hypoparathyroidism increases length of hospitalization, morbidity and cost associated with total thyroidectomy. While permanent hypoparathyroidism poses a significant medical burden with lifetime medication, regular follow up and considerable disease burden related to chronic renal failure and other sequelae. Parathyroid autotransplantation has been demonstrated to result in biochemically functional grafts, leading to the procedures' common use during total thyroidectomy. The clearest indications for parathyroid auto transplantation are inadvertently removed or devascularized parathyroid glands. Some centers utilize routine autotransplantation to reduce the risk of permanent hypoparathyroidism. Novel fluorescence techniques to aid in parathyroid detection during thyroid surgery are under evaluation. This review aims to define the role and impact of parathyroid autotransplantation undertaken during total thyroidectomy. PMID- 29322027 TI - Allograft for Myeloma: Examining Pieces of the Jigsaw Puzzle. AB - Multiple myeloma (MM) cure remains elusive despite the availability of newer anti myeloma agents. Patients with high-risk disease often suffer from early relapse and short survival. Allogeneic hematopoietic cell transplantation (allo-HCT) is an "immune-based" therapy that has the potential to offer long-term remission in a subgroup of patients, at the expense of high rates of transplant-related morbidity and mortality. Donor lymphocyte infusion (DLI) upon disease relapse after allo-HCT is able to generate an anti-myeloma response suggestive of a graft versus-myeloma effect. Allo-HCT provides a robust platform for additional immune based therapy upon relapse including DLI and, maintenance with immunomodulatory drugs and immunosuppressive therapy. There have been conflicting findings from randomized prospective trials questioning the role of allo-HCT. However, to this date, allo-HCT remains the only potential curable treatment for MM and its therapeutic role needs to be better defined especially for patients with high risk disease. This review examines different aspects of this treatment and summarizes ongoing attempts at improving its therapeutic index. PMID- 29322030 TI - Editorial: Update on the Treatment of Metastatic Non-small Cell Lung Cancer (NSCLC) in New Era of Personalised Medicine. PMID- 29322029 TI - Influencing Cancer Screening Participation Rates-Providing a Combined Cancer Screening Program (a 'One Stop' Shop) Could Be a Potential Answer. AB - Introduction: Participation in established cancer screening programs remains variable. Therefore, a renewed focus on how to increase screening uptake, including addressing structural barriers such as time, travel, and cost is needed. One approach could be the provision of combined cancer screening, where multiple screening tests are provided at the same time and location (essentially a 'One Stop' screening shop). This cohort study explored both cancer screening behavior and the acceptability of a combined screening approach. Methods: Participants of the North Western Adelaide Health Study (NWAHS), South Australia were invited to participate in a questionnaire about cancer screening behaviors and the acceptability of a proposed 'One Stop' cancer screening shop. Data were collected from 10th August 2015 to 18th January 2016, weighted for selection probability, age, and sex and analyzed using descriptive and multivariable logistic regression analysis. Results: 1,562 people, 52% female (mean age 54.1 years +/- 15.2) participated. Reported screening participation was low, the highest being for Pap Smear (34.4%). Common reasons for screening participation were preventing sickness (56.1%, CI 53.2-59.0%), maintaining health (51%, CI 48 53.9%), and free program provision (30.9%, CI 28.2-33.6%). Females were less likely to state that screening is not beneficial [OR 0.37 (CI 0.21-0.66), p < 0.001] and to cite sickness prevention [OR 2.10 (CI 1.46-3.00), p < 0.001] and free program [OR 1.75 (CI 1.22-2.51), p < 0.003] as reasons for screening participation. Of those who did not participate, 34.6% (CI 30.3-39.1%) stated that there was nothing that discouraged them from participation, with 55- to 64 year olds [OR 0.24 (CI 0.07-0.74), p < 0.04] being less likely to cite this reason. 21% (CI 17.2-24.8%) thought they did not need screening, while a smaller proportion stated not having time (6.9%, CI 4.9-9.7%) and the costs associated with screening (5.2%, CI 3.5-7.7%). The majority of participants (85.3%, CI 81.9 88.2%) supported multiple screening being offered at the same time and location. Conclusion: Identified screening behaviors in this study are similar to those reported in the literature. The high support for the concept of combined cancer screening demonstrates that this type of approach is acceptable to potential end users and warrants further investigation. PMID- 29322028 TI - High-Content Monitoring of Drug Effects in a 3D Spheroid Model. AB - A recent decline in the discovery of novel medications challenges the widespread use of 2D monolayer cell assays in the drug discovery process. As a result, the need for more appropriate cellular models of human physiology and disease has renewed the interest in spheroid 3D culture as a pertinent model for drug screening. However, despite technological progress that has significantly simplified spheroid production and analysis, the seeming complexity of the 3D approach has delayed its adoption in many laboratories. The present report demonstrates that the use of a spheroid model may be straightforward and can provide information that is not directly available with a standard 2D approach. We describe a cost-efficient method that allows for the production of an array of uniform spheroids, their staining with vital dyes, real-time monitoring of drug effects, and an ATP-endpoint assay, all in the same 96-well U-bottom plate. To demonstrate the method performance, we analyzed the effect of the preclinical anticancer drug MLN4924 on spheroids formed by VCaP and LNCaP prostate cancer cells. The drug has different outcomes in these cell lines, varying from cell cycle arrest and protective dormancy to senescence and apoptosis. We demonstrate that by using high-content analysis of spheroid arrays, the effect of the drug can be described as a series of EC50 values that clearly dissect the cytostatic and cytotoxic drug actions. The method was further evaluated using four standard cancer chemotherapeutics with different mechanisms of action, and the effect of each drug is described as a unique multi-EC50 diagram. Once fully validated in a wider range of conditions, this method could be particularly valuable for phenotype-based drug discovery. PMID- 29322031 TI - Inhibition of Wnt Signaling Pathways Impairs Chlamydia trachomatis Infection in Endometrial Epithelial Cells. AB - Chlamydia trachomatis infections represent the predominant cause of bacterial sexually transmitted infections. As an obligate intracellular bacterium, C. trachomatis is dependent on the host cell for survival, propagation, and transmission. Thus, factors that affect the host cell, including nutrition, cell cycle, and environmental signals, have the potential to impact chlamydial development. Previous studies have demonstrated that activation of Wnt/beta catenin signaling benefits C. trachomatis infections in fallopian tube epithelia. In cervical epithelial cells chlamydiae sequester beta-catenin within the inclusion. These data indicate that chlamydiae interact with the Wnt signaling pathway in both the upper and lower female genital tract (FGT). However, hormonal activation of canonical and non-canonical Wnt signaling pathways is an essential component of cyclic remodeling in another prominent area of the FGT, the endometrium. Given this information, we hypothesized that Wnt signaling would impact chlamydial infection in endometrial epithelial cells. To investigate this hypothesis, we analyzed the effect of Wnt inhibition on chlamydial inclusion development and elementary body (EB) production in two endometrial cell lines, Ishikawa (IK) and Hec-1B, in nonpolarized cell culture and in a polarized endometrial epithelial (IK)/stromal (SHT-290) cell co-culture model. Inhibition of Wnt by the small molecule inhibitor (IWP2) significantly decreased inclusion size in IK and IK/SHT-290 cultures (p < 0.005) and chlamydial infectivity (p <= 0.01) in both IK and Hec-1B cells. Confocal and electron microscopy analysis of chlamydial inclusions revealed that Wnt inhibition caused chlamydiae to become aberrant in morphology. EB formation was also impaired in IK, Hec-1B and IK/SHT 290 cultures regardless of whether Wnt inhibition occurred throughout, in the middle (24 hpi) or late (36 hpi) during the development cycle. Overall, these data lead us to conclude that Wnt signaling in the endometrium is a key host pathway for the proper development of C. trachomatis. PMID- 29322032 TI - The Multiple Localized Glyceraldehyde-3-Phosphate Dehydrogenase Contributes to the Attenuation of the Francisella tularensis dsbA Deletion Mutant. AB - The DsbA homolog of Francisella tularensis was previously demonstrated to be required for intracellular replication and animal death. Disruption of the dsbA gene leads to a pleiotropic phenotype that could indirectly affect a number of different cellular pathways. To reveal the broad effects of DsbA, we compared fractions enriched in membrane proteins of the wild-type FSC200 strain with the dsbA deletion strain using a SILAC-based quantitative proteomic analysis. This analysis enabled identification of 63 proteins with significantly altered amounts in the dsbA mutant strain compared to the wild-type strain. These proteins comprise a quite heterogeneous group including hypothetical proteins, proteins associated with membrane structures, and potential secreted proteins. Many of them are known to be associated with F. tularensis virulence. Several proteins were selected for further studies focused on their potential role in tularemia's pathogenesis. Of them, only the gene encoding glyceraldehyde-3-phosphate dehydrogenase, an enzyme of glycolytic pathway, was found to be important for full virulence manifestations both in vivo and in vitro. We next created a viable mutant strain with deleted gapA gene and analyzed its phenotype. The gapA mutant is characterized by reduced virulence in mice, defective replication inside macrophages, and its ability to induce a protective immune response against systemic challenge with parental wild-type strain. We also demonstrate the multiple localization sites of this protein: In addition to within the cytosol, it was found on the cell surface, outside the cells, and in the culture medium. Recombinant GapA was successfully obtained, and it was shown that it binds host extracellular serum proteins like plasminogen, fibrinogen, and fibronectin. PMID- 29322034 TI - Increased Neutrophil Secretion Induced by NLRP3 Mutation Links the Inflammasome to Azurophilic Granule Exocytosis. AB - Heterozygous mutations in the NLRP3 gene in patients with cryopyrin associated periodic syndrome (CAPS) lead to hyper-responsive inflammasome function. CAPS is a systemic auto-inflammatory syndrome characterized by the activation of the innate immune system induced by elevated pro-inflammatory cytokines, but the involvement of selective innate immune cells in this process is not fully understood. Neutrophil secretion and the toxic components of their granules are mediators of inflammation associated with several human diseases and inflammatory conditions. Here, using the Nlrp3A350V inducible mouse model (MWS CreT) that recapitulates human patients with the A352V mutation in NLRP3 observed in the Muckle-Wells sub-phenotype of CAPS, we studied the relationship between hyper activation of the inflammasome and neutrophil exocytosis. Using a flow cytometry approach, we show that Nlrp3A350V (MWS) neutrophils express normal basal levels of CD11b at the plasma membrane and that the upregulation of CD11b from secretory vesicles in response to several plasma membrane or endocytic agonist including the bacterial-derived mimetic peptide formyl-Leu-Met-Phe (fMLF) and the unmethylated oligonucleotide CpG is normal in MWS neutrophils. Significant but modest CD11b upregulation in MWS neutrophils compared to wild type was only observed in response to GM-CSF and CpG. The same pattern was observed for the secretion of matrix metalloproteinase-9 (MMP-9) from gelatinase granules in that MMP-9 secretion in MWS neutrophils was not different from that observed in wild type neutrophils except when stimulated with GM-CSF and CpG. In contrast, azurophilic granule secretion, whose cargoes constitute the most toxic secretory and pro-inflammatory factors of the neutrophil, was markedly dysregulated in MWS neutrophils under both basal and stimulated conditions. This could not be attributed to paracrine effects of secretory cytokines because IL-1beta secretion by neutrophils was undetectable under these experimental conditions. The increased azurophilic granule exocytosis in MWS neutrophils was attenuated by treatment with the neutrophil exocytosis inhibitor Nexinhib20. In agreement with a possible neutrophil contribution to systemic inflammation in CAPS, the levels of neutrophil secretory proteins were significantly elevated in the plasma from Nlrp3A350V mice. Altogether, our data indicates an azurophilic granule-selective dysregulation of neutrophil exocytosis in CAPS. PMID- 29322033 TI - Cattle Tick Rhipicephalus microplus-Host Interface: A Review of Resistant and Susceptible Host Responses. AB - Ticks are able to transmit tick-borne infectious agents to vertebrate hosts which cause major constraints to public and livestock health. The costs associated with mortality, relapse, treatments, and decreased production yields are economically significant. Ticks adapted to a hematophagous existence after the vertebrate hemostatic system evolved into a multi-layered defense system against foreign invasion (pathogens and ectoparasites), blood loss, and immune responses. Subsequently, ticks evolved by developing an ability to suppress the vertebrate host immune system with a devastating impact particularly for exotic and crossbred cattle. Host genetics defines the immune responsiveness against ticks and tick-borne pathogens. To gain an insight into the naturally acquired resistant and susceptible cattle breed against ticks, studies have been conducted comparing the incidence of tick infestation on bovine hosts from divergent genetic backgrounds. It is well-documented that purebred and crossbred Bos taurus indicus cattle are more resistant to ticks and tick-borne pathogens compared to purebred European Bos taurus taurus cattle. Genetic studies identifying Quantitative Trait Loci markers using microsatellites and SNPs have been inconsistent with very low percentages relating phenotypic variation with tick infestation. Several skin gene expression and immunological studies have been undertaken using different breeds, different samples (peripheral blood, skin with tick feeding), infestation protocols and geographic environments. Susceptible breeds were commonly found to be associated with the increased expression of toll like receptors, MHC Class II, calcium binding proteins, and complement factors with an increased presence of neutrophils in the skin following tick feeding. Resistant breeds had higher levels of T cells present in the skin prior to tick infestation and thus seem to respond to ticks more efficiently. The skin of resistant breeds also contained higher numbers of eosinophils, mast cells and basophils with up-regulated proteases, cathepsins, keratins, collagens and extracellular matrix proteins in response to feeding ticks. Here we review immunological and molecular determinants that explore the cattle tick Rhipicephalus microplus-host resistance phenomenon as well as contemplating new insights and future directions to study tick resistance and susceptibility, in order to facilitate interventions for tick control. PMID- 29322035 TI - Evolution of Bordetellae from Environmental Microbes to Human Respiratory Pathogens: Amoebae as a Missing Link. AB - The genus Bordetella comprises several bacterial species that colonize the respiratory tract of mammals. It includes B. pertussis, a human-restricted pathogen that is the causative agent of Whooping Cough. In contrast, the closely related species B. bronchiseptica colonizes a broad range of animals as well as immunocompromised humans. Recent metagenomic studies have identified known and novel bordetellae isolated from different environmental sources, providing a new perspective on their natural history. Using phylogenetic analysis, we have shown that human and animal pathogenic bordetellae have most likely evolved from ancestors that originated from soil and water. Our recent study found that B. bronchiseptica can evade amoebic predation and utilize Dictyostelium discoideum as an expansion and transmission vector, which suggests that the evolutionary pressure to evade the amoebic predator enabled the rise of bordetellae as respiratory pathogens. Interactions with amoeba may represent the starting point for bacterial adaptation to eukaryotic cells. However, as bacteria evolve and adapt to a novel host, they can become specialized and restricted to a specific host. B. pertussis is known to colonize and cause infection only in humans, and this specialization to a closed human-to-human lifecycle has involved genome reduction and the loss of ability to utilize amoeba as an environmental reservoir. The discoveries from studying the interaction of Bordetella species with amoeba will elicit a better understanding of the evolutionary history of these and other important human pathogens. PMID- 29322036 TI - MHC Class II Activation and Interferon-gamma Mediate the Inhibition of Neutrophils and Eosinophils by Staphylococcal Enterotoxin Type A (SEA). AB - Staphylococcal enterotoxins are classified as superantigens that act by linking T cell receptor with MHC class II molecules, which are expressed on classical antigen-presenting cells (APC). Evidence shows that MHC class II is also expressed in neutrophils and eosinophils. This study aimed to investigate the role of MHC class II and IFN-gamma on chemotactic and adhesion properties of neutrophils and eosinophils after incubation with SEA. Bone marrow (BM) cells obtained from BALB/c mice were resuspended in culture medium, and incubated with SEA (3-30 ng/ml; 1-4 h), after which chemotaxis and adhesion were evaluated. Incubation with SEA significantly reduced the chemotactic and adhesive responses in BM neutrophils activated with IL-8 (200 ng/ml). Likewise, SEA significantly reduced the chemotactic and adhesive responses of BM eosinophils activated with eotaxin (300 ng/ml). The inhibitory effects of SEA on cell chemotaxis and adhesion were fully prevented by prior incubation with an anti-MHC class II blocking antibody (2 MUg/ml). SEA also significantly reduced the intracellular Ca2+ levels in IL-8- and eotaxin-activated BM cells. No alterations of MAC-1, VLA4, and LFA-1alpha expressions were observed after SEA incubation. In addition, SEA elevated by 3.5-fold (P < 0.05) the INF-gamma levels in BM cells. Incubation of BM leukocytes with IFN-gamma (10 ng/ml, 2 h) reduced both neutrophil and eosinophil chemotaxis and adhesion, which were prevented by prior incubation with anti-MHC class II antibody (2 MUg/ml). In conclusion, SEA inhibits neutrophil and eosinophil by MHC class II-dependent mechanism, which may be modulated by concomitant release of IFN-gamma. PMID- 29322037 TI - Persistent Bacterial Bronchitis: Time to Venture beyond the Umbrella. AB - Chronic cough in children is common and frequently mismanaged. In the past, cough was diagnosed as asthma and inappropriate asthma therapies prescribed and escalated. It has been realized that persistent bacterial bronchitis (PBB) is a common cause of wet cough and responds to oral antibiotics. The initial definition comprised a history of chronic wet cough, positive bronchoalveolar (BAL) cultures for a respiratory pathogen and response to a 2-week course of oral amoxicillin-clavulanic acid. This is now termed PBB-micro; PBB-clinical eliminates the need for BAL. PBB-extended is PBB-micro or PBB-clinical but resolution necessitating 4 weeks of antibiotics; and recurrent PBB is >3 attacks of PBB-micro or-clinical/year. However, the airway has only a limited range of responses to chronic inflammation and infection, and neutrophilic airway disease is seen in many other conditions, such as cystic fibrosis and primary ciliary dyskinesia, both chronic suppurative lung disease endotypes, whose recognition has led to huge scientific and clinical advances. There is an urgent need to extend endotyping into PBB, especially PBB-recurrent. We need to move from associative studies and, in particular, deploy sophisticated modern -omics technologies and systems biology, rather as has been done in the context of asthma in U-BIOPRED. In summary, the use of the term PBB has done signal service in pointing us away from prescribing asthma therapies to children with infected airways, but we now need to move beyond a simple description to teasing out underlying endotypes. PMID- 29322038 TI - Developing and Implementing a Pediatric Emergency Care Curriculum for Providers at District Level Hospitals in Sub-Saharan Africa: A Case Study in Kenya. AB - Introduction: Emergency medicine is a relatively new field in sub-Saharan Africa and dedicated training in pediatric emergency care is limited. While guidelines from the African Federation of Emergency Medicine (AFEM) regarding emergency training exist, a core curriculum in pediatric emergency care has not yet been established for providers at the district hospital level. Methods: The objective of the project was to develop a curriculum for providers with limited training in pediatric emergencies, and contain didactic and simulation components with emphasis on treatment and resuscitation using available resources. A core curriculum for pediatric emergency care was developed using a validated model of medical education curriculum development and through review of existing guidelines and literature. Based on literature review, as well as a review of existent guidelines in pediatric and emergency care, 10 core topics were chosen and agreed upon by experts in the field, including pediatric and emergency care providers in Kenya and the United States. These topics were confirmed to be consistent with the principles of emergency care endorsed by AFEM as well as complimentary to existing Kenyan medical school syllabi. A curriculum based on these 10 core topics was created and subsequently piloted with a group of medical residents and clinical officers at a community hospital in western Kenya. Results: The 10 core pediatric topics prioritized were airway management, respiratory distress, thoracic and abdominal trauma, head trauma and cervical spine management, sepsis and shock, endocrine emergencies, altered mental status/toxicology, orthopedic emergencies, burn and wound management, and pediatric advanced life support. The topics were incorporated into a curriculum comprised of ten 1.5-h combined didactic plus low-fidelity simulation modules. Feedback from trainers and participating providers gave high ratings to the ease of information delivery, relevance, and appropriateness of the curriculum. Conclusion: We present here a core curriculum in pediatric emergency care for district hospital level providers in Kenya which can be used as a framework for further development and implementation of training programs throughout sub Saharan Africa. PMID- 29322039 TI - Should Australia Ban the Use of Genetic Test Results in Life Insurance? AB - Under current Australian regulation, life insurance companies can require applicants to disclose all genetic test results, including results from research or direct-to-consumer tests. Life insurers can then use this genetic information in underwriting and policy decisions for mutually rated products, including life, permanent disability, and total income protection insurance. Over the past decade, many countries have implemented moratoria or legislative bans on the use of genetic information by life insurers. The Australian government, by contrast, has not reviewed regulation since 2005 when it failed to ensure implementation of recommendations made by the Australian Law Reform Commission. In that time, the Australian life insurance industry has been left to self-regulate its use of genetic information. As a result, insurance fears in Australia now are leading to deterred uptake of genetic testing by at-risk individuals and deterred participation in medical research, both of which have been documented. As the potential for genomic medicine grows, public trust and engagement are critical for successful implementation. Concerns around life insurance may become a barrier to the development of genomic health care, research, and public health initiatives in Australia, and the issue should be publicly addressed. We argue a moratorium on the use of genetic information by life insurers should be enacted while appropriate longer term policy is determined and implemented. PMID- 29322040 TI - A Technology-Aided Program to Support Basic Occupational Engagement and Mobility in Persons with Multiple Disabilities. AB - Background: Persons with severe/profound intellectual and multiple disabilities tend to be passive and sedentary. Promoting their occupational engagement and mobility (i.e., indoor walking) can help to modify their condition and improve their environmental input, health, and social image. Aim: This study assessed whether a technology-aided program was suitable to (a) support independent occupation and mobility in eight participants with intellectual and sensory disabilities and (b) eventually increase the participants' heart rates to levels considered beneficial for them. Method: The program, which involved a computer system regulating the presentation of auditory or visual cues and the delivery of preferred stimulation, was introduced according to a non-concurrent multiple baseline design across participants. The auditory or visual cues guided the participants to collect objects from different desks and to transport them to a final destination (i.e., depositing them into a carton). Preferred stimulation was available to the participants for collecting and for depositing the objects. Results: During the program, all participants had an increase in their independent responses of collecting objects and transporting them to the final destination. Their heart rates also increased to levels reflecting moderate intensity physical exercise, potentially beneficial for their health. Conclusion: A program, such as that used in this study, can promote occupational engagement and mobility in persons with multiple disabilities. PMID- 29322041 TI - A Model to Promote Public Health by Adding Evidence-Based, Empathy-Enhancing Programs to All Undergraduate Health-care Curricula. AB - Fostering empathy in future health-care providers through service-learning is emerging as central to public health promotion. Patients fare better when their caregivers have higher relationship-centered characteristics such as the ones measured by the Jefferson Scale of Empathy. Unfortunately, these characteristics often deteriorate during health-care professional training. Nevertheless, growing literature documents how we can promote empathy, and other patient-centered characteristics, throughout health-care professional students' undergraduate education. As for proven treatment plans, we believe we should also use evidence based guidelines to foster relationship-centered characteristics in our students when training them to practice as part of an interdisciplinary health-care team. PMID- 29322042 TI - Fine-Tuning the Wall Thickness of Ordered Mesoporous Graphene by Exploiting Ligand Exchange of Colloidal Nanocrystals. AB - Because of their unique physical properties, three-dimensional (3D) graphene has attracted enormous attention over the past years. However, it is still a challenge to precisely control the layer thickness of 3D graphene. Here, we report a novel strategy to rationally adjust the wall thickness of ordered mesoporous graphene (OMG). By taking advantage of ligand exchange capability of colloidal Fe3O4 nanocrystals, we are able to fine-tune the wall thickness of OMG from 2 to 6 layers of graphene. When evaluated as electrocatalyst for oxygen reduction reaction upon S and N doping, the 4-layer OMG is found to show better catalytic performance compared with their 2- and 6-layer counterparts, which we attribute to the enhanced exposure of active sites arising from the thin wall thickness and high surface area. PMID- 29322043 TI - Dynamic Mechanical Compression of Chondrocytes for Tissue Engineering: A Critical Review. AB - Articular cartilage functions to transmit and translate loads. In a classical structure-function relationship, the tissue resides in a dynamic mechanical environment that drives the formation of a highly organized tissue architecture suited to its biomechanical role. The dynamic mechanical environment includes multiaxial compressive and shear strains as well as hydrostatic and osmotic pressures. As the mechanical environment is known to modulate cell fate and influence tissue development toward a defined architecture in situ, dynamic mechanical loading has been hypothesized to induce the structure-function relationship during attempts at in vitro regeneration of articular cartilage. Researchers have designed increasingly sophisticated bioreactors with dynamic mechanical regimes, but the response of chondrocytes to dynamic compression and shear loading remains poorly characterized due to wide variation in study design, system variables, and outcome measurements. We assessed the literature pertaining to the use of dynamic compressive bioreactors for in vitro generation of cartilaginous tissue from primary and expanded chondrocytes. We used specific search terms to identify relevant publications from the PubMed database and manually sorted the data. It was very challenging to find consensus between studies because of species, age, cell source, and culture differences, coupled with the many loading regimes and the types of analyses used. Early studies that evaluated the response of primary bovine chondrocytes within hydrogels, and that employed dynamic single-axis compression with physiologic loading parameters, reported consistently favorable responses at the tissue level, with upregulation of biochemical synthesis and biomechanical properties. However, they rarely assessed the cellular response with gene expression or mechanotransduction pathway analyses. Later studies that employed increasingly sophisticated biomaterial-based systems, cells derived from different species, and complex loading regimes, did not necessarily corroborate prior positive results. These studies report positive results with respect to very specific conditions for cellular responses to dynamic load but fail to consistently achieve significant positive changes in relevant tissue engineering parameters, particularly collagen content and stiffness. There is a need for standardized methods and analyses of dynamic mechanical loading systems to guide the field of tissue engineering toward building cartilaginous implants that meet the goal of regenerating articular cartilage. PMID- 29322044 TI - Repositioning Titanium: An In Vitro Evaluation of Laser-Generated Microporous, Microrough Titanium Templates As a Potential Bridging Interface for Enhanced Osseointegration and Durability of Implants. AB - Although titanium alloys remain the preferred biomaterials for the manufacture of biomedical implants today, such devices can fail within 15 years of implantation due to inadequate osseointegration. Furthermore, wear debris toxicity due to alloy metal ion release has been found to cause side-effects including neurotoxicity and chronic inflammation. Titanium, with its known biocompatibility, corrosion resistance, and high elastic modulus, could if harnessed in the form of a superficial scaffold or bridging device, resolve such issues. A novel three-dimensional culture approach was used to investigate the potential osteoinductive and osseointegrative capabilities of a laser-generated microporous, microrough medical grade IV titanium template on human skeletal stem cells (SSCs). Human SSCs seeded on a rough 90-um pore surface of ethylene oxide sterilized templates were observed to be strongly adherent, and to display early osteogenic differentiation, despite their inverted culture in basal conditions over 21 days. Limited cellular migration across the template surface highlighted the importance of high surface wettability in maximizing cell adhesion, spreading and cell-biomaterial interaction, while restricted cell ingrowth within the conical-shaped pores underlined the crucial role of pore geometry and size in determining the extent of osseointegration of an implant device. The overall findings indicate that titanium only devices, with appropriate optimizations to porosity and surface wettability, could yet play a major role in improving the long-term efficacy, durability, and safety of future implant technology. PMID- 29322047 TI - The Value Chain Approach in One Health: Conceptual Framing and Focus on Present Applications and Challenges. AB - The value chain (VC) is a major operational concept for socioeconomic analysis at meso level. Widely mobilized in development practice, it is still undergoing conceptual and practical refining, e.g., to take account of environmental and social sustainability. Briefly, VC refers to a system of value creation through the full set of actors, links, technical and commercial activities and flows involved in the provision of a good or service on a market. In the past decade, this concept has been promoted in the management of animal health. In particular, the emergence of highly pathogenic avian influenza (HPAI) has triggered an interdisciplinary dynamic including VC analysis as a central tool. These efforts promoted participatory investigation methods in the analysis of health systems. Using qualitative and quantitative data, these methods acknowledge the usefulness of actors' involvement and knowledge, hence facilitating the transdisciplinarity needed for effective action. They fit into adaptive and action-oriented strategies, fostering stakeholders' participation. Recent research on HPAI surveillance in South-East Asia merged VC and participatory approaches to develop innovative tools for analyzing constraints to information flow. On-going interventions for HPAI prevention and control as well as the prevention of other emerging zoonotic risks in Africa are presently building on this VC framework to develop strategies for its application at national and regional scales. Based on the latter experiences, this article proposes a field-based perspective on VC applications to animal and public health systems, within a One Health approach responding to the overall challenge of complexity. PMID- 29322046 TI - Extracellular Vesicles As Mediators of Cardiovascular Calcification. AB - Involvement of cell-derived extracellular particles, coined as matrix vesicles (MVs), in biological bone formation was introduced by Bonucci and Anderson in mid 1960s. In 1983, Anderson et al. observed similar structures in atherosclerotic lesion calcification using electron microscopy. Recent studies employing new technologies and high- resolution microscopy have shown that although they exhibit characteristics similar to MVs, calcifying extracellular vesicles (EVs) in cardiovascular tissues are phenotypically distinct from their bone counterparts. EVs released from cells within cardiovascular tissues may contain either inhibitors of calcification in normal physiological conditions or promoters in pathological environments. Pathological conditions characterized by mineral imbalance (e.g., atherosclerosis, chronic kidney disease, diabetes) can cause smooth muscle cells, valvular interstitial cells, and macrophages to release calcifying EVs, which contain specific mineralization-promoting cargo. These EVs can arise from either direct budding of the cell plasma membrane or through the release of exosomes from multivesicular bodies. In contrast, MVs are germinated from specific sites on osteoblast, chondrocyte, or odontoblast membranes. Much like MVs, calcifying EVs in the fibrillar collagen extracellular matrix of cardiovascular tissues serve as calcification foci, but the mineral that forms appears different between the tissues. This review highlights recent studies on mechanisms of calcifying EV formation, release, and mineralization in cardiovascular calcification. Furthermore, we address the MV-EV relationship, and offer insight into therapeutic implications to consider for potential targets for each type of mineralization. PMID- 29322045 TI - Multiple Duties for Spindle Assembly Checkpoint Kinases in Meiosis. AB - Cell division in mitosis and meiosis is governed by evolutionary highly conserved protein kinases and phosphatases, controlling the timely execution of key events such as nuclear envelope breakdown, spindle assembly, chromosome attachment to the spindle and chromosome segregation, and cell cycle exit. In mitosis, the spindle assembly checkpoint (SAC) controls the proper attachment to and alignment of chromosomes on the spindle. The SAC detects errors and induces a cell cycle arrest in metaphase, preventing chromatid separation. Once all chromosomes are properly attached, the SAC-dependent arrest is relieved and chromatids separate evenly into daughter cells. The signaling cascade leading to checkpoint arrest depends on several protein kinases that are conserved from yeast to man. In meiosis, haploid cells containing new genetic combinations are generated from a diploid cell through two specialized cell divisions. Though apparently less robust, SAC control also exists in meiosis. Recently, it has emerged that SAC kinases have additional roles in executing accurate chromosome segregation during the meiotic divisions. Here, we summarize the main differences between mitotic and meiotic cell divisions, and explain why meiotic divisions pose special challenges for correct chromosome segregation. The less-known meiotic roles of the SAC kinases are described, with a focus on two model systems: yeast and mouse oocytes. The meiotic roles of the canonical checkpoint kinases Bub1, Mps1, the pseudokinase BubR1 (Mad3), and Aurora B and C (Ipl1) will be discussed. Insights into the molecular signaling pathways that bring about the special chromosome segregation pattern during meiosis will help us understand why human oocytes are so frequently aneuploid. PMID- 29322048 TI - Evaluation of Animal-Based Indicators to Be Used in a Welfare Assessment Protocol for Sheep. AB - Sheep are managed under a variety of different environments (continually outdoors, partially outdoors with seasonal or diurnal variation, continuously indoors) and for different purposes, which makes assessing welfare challenging. This diversity means that resource-based indicators are not particularly useful and, thus, a welfare assessment scheme for sheep, focusing on animal-based indicators, was developed. We focus specifically on ewes, as the most numerous group of sheep present on farm, although many of the indicators may also have relevance to adult male sheep. Using the Welfare Quality(r) framework of four Principles and 12 Criteria, we considered the validity, reliability, and feasibility of 46 putative animal-based indicators derived from the literature for these criteria. Where animal-based indicators were potentially unreliably or were not considered feasible, we also considered the resource-based indicators of access to water, stocking density, and floor slipperiness. With the exception of the criteria "Absence of prolonged thirst," we suggest at least one animal-based indicator for each welfare criterion. As a minimum, face validity was available for all indicators; however, for many, we found evidence of convergent validity and discriminant validity (e.g., lameness as measured by gait score, body condition score). The reliability of most of the physical and health measures has been tested in the field and found to be appropriate for use in welfare assessment. However, for the majority of the proposed behavioral indicators (lying synchrony, social withdrawal, postures associated with pain, vocalizations, stereotypy, vigilance, response to surprise, and human approach test), this still needs to be tested. In conclusion, the comprehensive assessment of sheep welfare through largely animal-based measures is supported by the literature through the use of indicators focusing on specific aspects of sheep biology. Further work is required for some indicators to ensure that measures are reliable when used in commercial settings. PMID- 29322049 TI - Differential Levels of Cecal Colonization by Salmonella Enteritidis in Chickens Triggers Distinct Immune Kinome Profiles. AB - Salmonella enterica serovar Enteritidis are facultative intracellular bacteria that cause disease in numerous species. Salmonella-related infections originating from poultry and/or poultry products are a major cause of human foodborne illness with S. Enteritidis the leading cause worldwide. Despite the importance of Salmonella to human health and chickens being a reservoir, little is known of the response to infection within the chicken gastrointestinal tract. Using chicken specific kinome immune peptide arrays we compared a detailed kinomic analysis of the chicken jejunal immune response in a single line of birds with high and low Salmonella loads. Four-day-old chicks were challenged with S. Enteritidis (105 cfu) and cecal content and a section of jejunum collected at three times: early [4-7 days post-infection (dpi)], middle (10-17 dpi), and late (24-37 dpi). Salmonella colonization was enumerated and birds with the highest (n = 4) and lowest (n = 4) loads at each time were selected for kinomic analyses. Key biological processes associated with lower loads of Salmonella clustered around immune responses, including cell surface receptor signaling pathway, positive regulation of cellular processes, defense response, innate immune response, regulation of immune response, immune system process, and regulation of signaling. Further evaluation showed specific pathways including chemokine, Jak Stat, mitogen activated protein kinase, and T cell receptor signaling pathways were also associated with increased resistance. Collectively, these findings demonstrate that it is possible to identify key mechanisms and pathways that are associated with increased resistance against S. Enteritidis cecal colonization in chickens. Therefore, providing a foundation for future studies to identify specific proteins within these pathways that are associated with resistance, which could provide breeders additional biomarkers to identify birds naturally more resistant to this important foodborne pathogen. PMID- 29322050 TI - Effects of umeclidinium/vilanterol on exercise endurance in COPD: a randomised study. AB - This multicentre, randomised, double-blind, placebo-controlled, two-period crossover study assessed the effect of umeclidinium/vilanterol (UMEC/VI) on exercise capacity in patients with chronic obstructive pulmonary disease (COPD) using the endurance shuttle walk test (ESWT). Patients were randomised 1:1 to one of two treatment sequences: 1) UMEC/VI 62.5/25 ug followed by placebo or 2) placebo followed by UMEC/VI 62.5/25 ug. Each treatment was taken once daily for 12 weeks. The primary end-point was 3-h post-dose exercise endurance time (EET) at week 12. Secondary end-points included trough forced expiratory volume in 1 s (FEV1) and 3-h post-dose functional residual capacity (FRC), both at week 12. COPD Assessment Test (CAT) score at week 12 was also assessed. UMEC/VI treatment did not result in a statistically significant improvement in EET change from baseline at week 12 versus placebo (p=0.790). However, improvements were observed in trough FEV1 (206 mL, 95% CI 167-246), 3-h post-dose FRC (-346 mL, 95% CI -487 to -204) and CAT score (-1.07 units, 95% CI -2.09 to -0.05) versus placebo at week 12. UMEC/VI did not result in improvements in EET at week 12 versus placebo, despite improvements in measures of lung function, hyperinflation and health status. PMID- 29322051 TI - Genetic Variation of the beta-tubulin Gene of Babesia caballi Strains. AB - Background: Equine piroplasmosis is caused by two haemoprotozoan parasites: Babesia caballi and Theileria equi. Negative economic impact on international trade has been associated to endemic sites. This is the reason why carrier detection requires reliable diagnostic methods. Various diagnostic modalities can be used alone or in combination including PCR. However, genetic variation of commonly used genes is still of debate. The aim of this research was to sequence the beta-tubulin gene of a B. caballi strain from Spain and to compare it with known beta-tubulin sequences. Methods: DNA was isolated from a cryopreserved strain from Spain and acute and chronic carrier horses. Firstly, degenerated primer pairs were designed based on GenBank sequences of different Babesia and Theileria species for sequencing. The primers were redesigned to amplify both parasites, simultaneously. Finally, a species-specific primer pair for B. caballi was designed and a Restriction Fragment Length Polymorphism-PCR (PCR-RFLP) assay performed to know the difference of known B. caballi strains. Results: We provided new insights of the beta-tubulin gene and a good molecular coverage of this gene, contributing with a number of useful primers to amplify T. equi and B. caballi. Moreover, PCR-RFLP assays based on the exon II of this gene confirmed the causative B. caballi strain in Spanish horses. Conclusion: We reported useful primer pairs for diagnostic and a new sequence of the beta-tubulin gene of B. caballi, which will facilitate the development of future assays and the detection of infected horses, preventing thus the spread of this disease worldwide. PMID- 29322052 TI - Composition of Anopheles Species Collected from Selected Malarious Areas of Afghanistan and Iran. AB - Background: Malarious areas in Iran are close to Afghanistan and Pakistan that urge the researchers to extend their knowledge on malaria epidemiology to the neighboring countries as well. Vectorial capacity differs at species or even at population level, the first essential step is accurate identification of vectors. This study aimed to identify Anopheles species composition in selected malarious areas of Afghanistan and Iran, providing further applied data for other research in two countries. Methods: Adults Anopheles spp. were collected from four provinces in Afghanistan (Badakhshan, Herat, Kunduz, Nangarhar) by pyrethrum spray catch, hand collection methods through WHO/EMRO coordination and from Chabahar County in Iran by pyrethrum spray catch method. Identification was performed using reliable identification key. Results: Totally, 800 female Anopheles mosquitos, 400 from each country were identified at species level. Anopheles composition in Afghanistan was An. superpictus, An. stephensi and An. hyrcanus. Most prevalent species in Badakhshan and Kunduz were An. superpictus, whereas An. stephensi and An. hyrcanus were respectively found in Nangarhar and Heart. Anopheles species in Chabahar County of Iran were An. stephensi, An. fluviatilis, An. culicifacies and An. sergentii. The most prevalent species was An. stephensi. Conclusion: Current study provides a basis for future research such as detection of Plasmodium infection in collected samples which is on process by the authors, also for effective implementation of evidence-based malaria vector intervention strategies. PMID- 29322053 TI - Insect Fauna of Human Cadavers in Tehran District. AB - Background: Entomological data can provide valuable information for crime scene investigations especially in post-mortem interval (PMI) estimation. This study performed to determine insect fauna of human corpses in Tehran district. Methods: Insect specimens were collected from 12 human cadavers during spring and summer 2014 and were identified using morphological characteristics. Results: Four fly species including two blowflies Chrysomya albiceps and Lucilia sericata (Calliphoridae), one flesh fly Sarcophaga argyrostoma (Sarcophagidae), and one phorid fly Megaselia scalaris (Phoridae) and a beetle Dermestes maculatus (Dermestidae) was observed on the human cadavers. Chrysomya albiceps was the most dominant species on the corpses temporally and spatially. Conclusion: Chrysomya albiceps was the most dominant insect species on human cadavers in the area study spatio-temporally. The data make C. albiceps as a valuable entomological indicator for PMI estimation in Tehran and other parts of the country. However, further biological and ecological data such as its behavior, life tables, and consistent developmental time should be investigated when establishing a PMI in the region. PMID- 29322054 TI - Spatial Distribution of Medically Important Scorpions in North West of Iran. AB - Background: Scorpions are one of the most important medical arthropods in Iran. This study aimed to determine the fauna, spatial distribution and some morphological characteristics of these venomous arthropods in the study area. Methods: Scorpions were collected using Ultra Violet light, rock rolling and digging methods in West Azerbaijan, East Azerbaijan, and Ardabil Provinces during 2015-2016. The specimens were preserved in 75% ethyl alcohol and transferred to the laboratory for species identification and morphological studies. Results: Distribution maps were produced using ArcGIS 10.3. Totally, 368 specimens from two families of Buthidae (97.1%) and Scorpionidae (2.99%) were collected and identified as Mesobuthus eupeus (80.16%), Androctonus crassicauda (10.60%), M. caucasicus (4.89%), Hottentotta saulcyi (1.35%) and Scorpio maurus (2.99%). Conclusion: The presence of medically important species, including the deadly black one in northwestern Iran requires health educational and control programs for reduction of these public health problems. PMID- 29322055 TI - The PCR-RFLP-Based Detection and Identification of the Leishmania Species Causing Human Cutaneous Leishmaniasis in the Khorasan-Razavi Province, Northeast of Iran. AB - Background: Leishmania tropica, the causative agent of anthroponotic cutaneous leishmaniasis (ACL), and Leishmania major, which causes zoonotic cutaneous leishmaniasis (ZCL), are endemic in Iran. Methods: Cross-sectional study was designed to identify Leishmania species in cutaneous leishmaniasis patients who referred to Mashhad Health Centers from 2013 to 2014 using ITS-PCR-RFLP technique. First, physical examinations were performed in all suspected patients and CL cases were confirmed with microscopical examinations. A questionnaire was prepared and completed for each confirmed patient and DNA from each lesion smear was extracted, separately. The ribosomal internal transcribed spacer was amplified with appropriate primers and PCR products were digested by enzyme Taq1 restrict enzyme. Results: From all patients, 51 cases (54.3%) were men and 43 of them (45.7%) were women. The most frequent age group was 20-29 years old (27.2%). Hands, face and feet were the most common sites for appearance of skin lesions. All of the 94 cases (100%) tested found to be positive by ITS-PCR-RFLP. Overall, Leishmania species were identified in all of the 94 lesion smears which 33 (35%) of them were L. major and 61 (65%) of the remained isolates were identified L. tropica. Conclusion: Characterization of Leishmania isolates collected from different parts of Khorasan-Razavi Province showed that L. tropica is predominant agents of CL, especially in large and medium sized cities such as Mashhad and Shandiz. Moreover, this study revealed that ITS-PCR-RFLP based on our designed primers is a suitable method for species characterization. PMID- 29322056 TI - Field Evaluation of Outdoor Ultra-Low Volume (ULV) Applications against Phlebotomine Sand Flies (Diptera: Psychodidae) in Al Rabta, North-West of Libya. AB - Background: Al Rabta is a rural area in the North-West of Libya that represents an important focus of zoonotic cutaneous leishmaniasis. This study aimed to evaluate the effect of Ultra Low Volume (ULV) applications in controlling sand flies and its impact on leishmaniasis transmission in this area. Methods: Two neighboring villages were selected: Al Rabta West (RW) as cypermethrin treated village and Al Rabta East (RE) as check one. The ULV was evaluated through 3 spraying cycles during Apr, Jun and Sep 2013. In the two villages, a number of outdoor sites were selected for sampling of sand flies (twice a month) using the CDC light traps. The cases of CL reported in the two villages during the study period were obtained from Al Rabta health center. Results: The two villages were similar where 9 species of sand flies (6 of Phlebotomu and 3 of Sergentomyia) were collected of which S. minuta and P. papatasi were the abundant species. As compared to the pre- ULV spraying, during the post- spraying periods: i) the reduction in abundance of the different species ranged from 20.85 to 77.52% with 46.69% as an overall reduction for all species altogether and, ii) in significantly (P> 0.05) higher mean ratio of males: females for all species altogether (1:2.41). Moreover, ULV spraying resulted in the absence of CL (Leishmania major) cases (Passive Case Detection). Conclusion: The efficiency of ULV spraying in reducing sand fly population, CL cases and consequently limits the disease transmission. PMID- 29322057 TI - Epidemiological Study on Cutaneous Leishmaniasis in an Endemic Area, of Qom Province, Central Iran. AB - Background: Cutaneous leishmaniasis (CL) is one of the most important health problems in many areas of Iran. There are two forms of the disease in Iran, anthroponotic and zoonotic CL. This study conducted to assess the epidemiological situation of CL in an endemic area of Qom Province, central Iran from Apr to Nov 2015. Methods: The sticky paper traps and aspirating tubes were used for collecting adult sand flies. Sherman traps and small insect nets were used to capture rodents and small mammals. Giemsa staining was used for preparing the expanded smear and followed by PCR for identifying the causative agent in human, vectors, and reservoirs. In this study, relative frequency of CL was also calculated. Results: Fourteen species of Phlebotomine sand flies were collected. Phlebotomus papatasi (61.74%) was the predominant species through the period of activity. Overall, 62 Meriones libycus, 8 Nesokia indica, 4 Mus musculus, 16 Allactaga elater and 2 Hemiechinus auritis were caught. PCR technique showed 6 out of 150 P. papatasi (2%), two out of 62 M. libycus (3.23%) and all of suspected human's skin tissue samples (100%) were infected with Leishmania major. The relative frequency of CL was 0.30%. Conclusion: This is the first detection of L. major within P. papatasi, M. libycus and human in Kahak District in Qom Province of Iran. Zoonotic cycle of CL exists in this area, L. major is the causative agent, P. papatasi is the main vector and M. libycus is the main reservoir of the disease. PMID- 29322059 TI - Citrus Seed Oils Efficacy against Larvae of Aedes aegypti. AB - Background: Dengue fever is a serious public health issue in Pakistan for many years. Globally plants have been reported to contain compounds with insecticidal properties. These properties have been demonstrated more recently on the larval stages of mosquitoes. Therefore, Citrus cultivar seeds were evaluated for larvicidal potential against the primary dengue vector Aedes aegypti. Methods: Extraction of oil was done by a steam distillation method and oils were evaluated according to WHO guidelines for larvicides 2005 for evaluation of insecticidal properties of citrus seed extracts against mosquito larvae. Result: Among the Citrus cultivar seed oil, rough lemon (Citrus jambhiri) had the lowest LC50 value (200.79ppm), while musambi (C. sinensis var musambi) had the highest LC50 value (457.30ppm) after 24 h of exposure. Conclusion: Citrus cultivars have some larvicidal potential but C. jambhiri had the greatest potential against A. aegypti larvae. Further small-scale field trials using the extracts of C. jambhiri will be conducted to determine operational feasibility. PMID- 29322058 TI - Gas Chromatography, GC/Mass Analysis and Bioactivity of Essential Oil from Aerial Parts of Ferulago trifida: Antimicrobial, Antioxidant, AChE Inhibitory, General Toxicity, MTT Assay and Larvicidal Activities. AB - Background: We aimed to investigate different biological properties of aerial parts essential oil of Ferulago trifida Boiss and larvicidal activity of its volatile oils from all parts of plant. Methods: Essential oil was prepared by steam distillation and analyzed by Gas chromatography and GC/Mass. Antioxidant, antimicrobial, cytotoxic effects and AChE inhibitory of the oil were investigated using DPPH, disk diffusion method, MTT assay and Ellman methods. Larvicidal activity of F. trifida essential oil against malaria vector Anopheles stephensi was carried out according to the method described by WHO. Results: In GC and GC/MS analysis, 58 compounds were identified in the aerial parts essential oil, of which E-verbenol (9.66%), isobutyl acetate (25.73%) and E-beta-caryophyllene (8.68%) were main compounds. The oil showed (IC50= 111.2MUg/ml) in DPPH and IC50= 21.5 mg/ml in the investigation of AChE inhibitory. Furthermore, the oil demonstrated toxicity with (LD50= 1.1MUg/ml) in brine shrimp lethality test and with (IC50= 22.0, 25.0 and 42.55 MUg/ml) on three cancerous cell lines (MCF-7, A 549 and HT-29) respectively. LC50 of stem, root, aerial parts, fruits, and flowers essential oils against larvae of An. stephensi were equal with 10.46, 22.27, 20.50, 31.93 and 79.87ppm respectively. In antimicrobial activities, essential oil was effective on all specimens except Escherichia coli, Aspergillus niger and Candida albicans. Conclusion: The essential oil showed moderate antioxidant activity, strong antimicrobial properties and good toxic effect in brine shrimp test and MTT assay on three cancerous cell lines. PMID- 29322060 TI - Geographical Distribution of Scorpion Odontobuthus doriae in Isfahan Province, Central Iran. AB - Background: Scorpions are among the world's venomous arthropods, they sting humans every year, suffering painful symptoms or losing their lives because of the venom. Odontobuthus doriae Thorell 1876 (Arachnida: Scorpionida: Buthidae) is a scorpion of medical importance and therefore its geographical distribution in Isfahan Province has been studied. Methods: This descriptive cross-sectional study was designed between Mar and Jun in 2012 and 2013 in Province of Isfahan, central Iran. Overall, 164 O. doriae scorpions were collected from their natural habitat by identifying the dug burrows. This arthropod's burrows were identified based on the presence of tumuli, particularly between May and Jun at the sloping foothills of pristine embankments. The sampling data was categorized and compared. Results: The relative frequency of collected O. doriae for the counties was Mobarakeh (13.5%), Shahinshahre (11.5%), Borkhar (9%), Shahreza (7.5%), Kashan (7.5%), Naeen (6%), Natanz (5.5%), Isfahan (4.8%), Najafabad (4.8%), Aran and Bidgol (4.8%), Dehaghan (4.8%), Flavarjan (3.7%), Khomeinishahr (3.7%), Tiran (3.7%), Golpayegan (3.7%), Ardestan (3.7%) and Lenjan (2.5%). No O. doriae was collected from other counties of the province. Conclusion: The habitats of O. doriae are more often located in central, eastern and northern regions of the province compared to other regions. Counties of southern and western regions are among cold parts of the province. PMID- 29322061 TI - Histopathological Study of Esophageal Infection with Gasterophilus pecorum (Diptera: Oestridae) in Persian Onager (Equus hemionus onager). AB - Background: The larval stages of Gasterophilus are obligate parasites in the gastrointestinal tract of equine accountable for pathologic ulcers in the Persian onager gastrointestinal. The aim of the current report was to study the histopathological change with G. pecorum larvae in the esophagus of a Persian onager. Methods: This study was performed in Iranian Zebra propagation and breeding site in Khartouran National Park, southeast of Shahrud City, Semnan Province, Iran in 2014. Following a necropsy with specific refer to esophagus of one adult female Persian onager were transmitted to the laboratory. After autopsy, parasites collected from the esophagus were transmitted into 70% alcohol. For histopathological investigation, tissue samples were collected from the esophagus. The tissues were fixed in 10% buffered formalin, and conformity routine processing, there were stained with Hematoxylin and eosin. Results: After clarity by lactophenol parasites were identified as G. pecorum. Microscopic recognition contained hyperemia, inflammatory cell infiltration, epithelial destruction, esophageal gland hyperplasia. Conclusion: This is the first survey of G. pecorum and histopathological study in the Persian onager esophagus in the world. PMID- 29322063 TI - Neurological Sequelae of Adult Meningitis in Africa: A Systematic Literature Review. AB - The high human immunodeficiency virus (HIV) prevalence in sub-Saharan Africa has markedly changed the epidemiology and presentation of adult meningitis. We conducted a systematic review using PubMed, Embase, Ovid, CENTRAL, and African Index Medicus to identify studies in Africa with data on neurological outcomes in adults after meningitis. We found 22 articles meeting inclusion criteria. From 4 studies with predominately pneumococcal meningitis, a median of 19% of survivors experienced hearing loss up to 40 days. Two studies of cryptococcal meningitis evaluated 6- to 12-month outcomes; in one, 41% of survivors had global neurocognitive impairment and 20% severe impairment at 1 year, and in a second 30% of survivors had intermediate disability and 10% severe disability at 6 months. A single small study of patients with tuberculosis/HIV found marked disability in 20% (6 of 30) at 9 months. Despite the high burden of meningitis in sub-Saharan Africa, little is known about neurological outcomes of patients with HIV-associated meningitides. PMID- 29322064 TI - Sexual Orientation Trends and Disparities in School Bullying and Violence-Related Experiences, 1999-2013. AB - Numerous recent studies have demonstrated that schools are often unsafe for lesbian, gay, and bisexual (LGB) adolescents, who are more likely than heterosexual peers to be bullied, harassed, or victimized in school contexts. Virtually all of these studies call for change, yet none investigate whether or not it has occurred. Using repeated waves of a population-based high school survey, we examine (1) the extent to which sexual orientation differences in school bullying and violence-related experiences are reported by lesbian/gay, bisexual, and heterosexual male and female adolescents; (2) trends in school bullying and violence-related experiences for each gender/orientation group, and (3) whether disparities have changed over time. Data were drawn from eight Massachusetts biennial Youth Risk Behavior Surveys from 1999 to 2013, grouped into 4 waves totaling 24,845 self-identified heterosexual, 270 lesbian/gay, and 857 bisexual youth. Disparities between LGB and heterosexual peers were found in all indicators. Heterosexual youth and gay males saw significant reductions in every outcome between the first and last waves. Among bisexual males, skipping school due to feeling unsafe, carrying weapons in school, and being bullied all decreased, but among lesbians and bisexual females only fighting in school declined significantly. Improvement trends in school safety were more consistent for heterosexual youth and gay males than for bisexual or lesbian females. Notably, despite these improvements, almost no reduction was seen in sexual orientation disparities. Future research should identify influences leading to reduced school victimization, especially focusing on ways of eliminating persistent sexual orientation disparities. Future research should identify influences leading to reduced school victimization, especially focusing on ways of eliminating persistent sexual orientation disparities. PMID- 29322066 TI - Special Section Guest Editorial: Radiomics and Deep Learning. AB - This guest editorial introduces and summarizes the JMI Special Section on Radiomics and Deep Learning. PMID- 29322065 TI - Modeling Anti-HIV-1 HSPC-Based Gene Therapy in Humanized Mice Previously Infected with HIV-1. AB - Investigations of anti-HIV-1 human hematopoietic stem/progenitor cell (HSPC) based gene therapy have been performed by HIV-1 challenge after the engraftment of gene-modified HSPCs in humanized mouse models. However, the clinical application of gene therapy is to treat HIV-1-infected patients. Here, we developed a new method to investigate an anti-HIV-1 HSPC-based gene therapy in humanized mice previously infected with HIV-1. First, humanized mice were infected with HIV-1. When plasma viremia reached >107 copies/mL 3 weeks after HIV 1 infection, the mice were myeloablated with busulfan and transplanted with anti HIV-1 gene-modified CD34+ HSPCs transduced with a lentiviral vector expressing two short hairpin RNAs (shRNAs) against CCR5 and HIV-1 long terminal repeat (LTR), along with human thymus tissue under the kidney capsule. Anti-HIV-1 vector modified human CD34+ HSPCs successfully repopulated peripheral blood and lymphoid tissues in HIV-1 previously infected humanized mice. Anti-HIV-1 shRNA vector modified CD4+ T lymphocytes showed selective advantage in HIV-1 previously infected humanized mice. This new method will be useful for investigations of anti-HIV-1 gene therapy when testing in a more clinically relevant experimental setting. PMID- 29322062 TI - Increased Indoleamine-2,3-Dioxygenase Activity Is Associated With Poor Clinical Outcome in Adults Hospitalized With Influenza in the INSIGHT FLU003Plus Study. AB - Background: Indoleamine-2,3-dioxygenase (IDO) mediated tryptophan (TRP) depletion has antimicrobial and immuno-regulatory effects. Increased kynurenine (KYN)-to TRP (KT) ratios, reflecting increased IDO activity, have been associated with poorer outcomes from several infections. Methods: We performed a case-control (1:2; age and sex matched) analysis of adults hospitalized with influenza A(H1N1)pdm09 with protocol-defined disease progression (died/transferred to ICU/mechanical ventilation) after enrollment (cases) or survived without progression (controls) over 60 days of follow-up. Conditional logistic regression was used to analyze the relationship between baseline KT ratio and other metabolites and disease progression. Results: We included 32 cases and 64 controls with a median age of 52 years; 41% were female, and the median durations of influenza symptoms prior to hospitalization were 8 and 6 days for cases and controls, respectively (P = .04). Median baseline KT ratios were 2-fold higher in cases (0.24 mM/M; IQR, 0.13-0.40) than controls (0.12; IQR, 0.09-0.17; P <= .001). When divided into tertiles, 59% of cases vs 20% of controls had KT ratios in the highest tertile (0.21-0.84 mM/M). When adjusted for symptom duration, the odds ratio for disease progression for those in the highest vs lowest tertiles of KT ratio was 9.94 (95% CI, 2.25-43.90). Conclusions: High KT ratio was associated with poor outcome in adults hospitalized with influenza A(H1N1)pdm09. The clinical utility of this biomarker in this setting merits further exploration. ClinicalTrialsgov Identifier: NCT01056185. PMID- 29322067 TI - Combining multiparametric MRI with receptor information to optimize prediction of pathologic response to neoadjuvant therapy in breast cancer: preliminary results. AB - Pathologic complete response following neoadjuvant therapy (NAT) is used as a short-term surrogate marker of eventual outcome in patients with breast cancer. Analyzing voxel-level heterogeneity in MRI-derived parametric maps, obtained before and after the first cycle of NAT ([Formula: see text]), in conjunction with receptor status, may improve the predictive accuracy of tumor response to NAT. Toward that end, we incorporated two MRI-derived parameters, the apparent diffusion coefficient and efflux rate constant, with receptor status in a logistic ridge-regression model. The area under the curve (AUC) and Brier score of the model computed via 10-fold cross validation were 0.94 (95% CI: 0.85, 0.99) and 0.11 (95% CI: 0.06, 0.16), respectively. These two statistics strongly support the hypothesis that our proposed model outperforms the other models that we investigated (namely, models without either receptor information or voxel level information). The contribution of the receptor information was manifested by an 8% to 15% increase in AUC and a 14% to 21% decrease in Brier score. These data indicate that combining multiparametric MRI with hormone receptor status has a high likelihood of improved prediction of pathologic response to NAT in breast cancer. PMID- 29322068 TI - Measuring temporal stability of positron emission tomography standardized uptake value bias using long-lived sources in a multicenter network. AB - Positron emission tomography (PET) is a quantitative imaging modality, but the computation of standardized uptake values (SUVs) requires several instruments to be correctly calibrated. Variability in the calibration process may lead to unreliable quantitation. Sealed source kits containing traceable amounts of [Formula: see text] were used to measure signal stability for 19 PET scanners at nine hospitals in the National Cancer Institute's Quantitative Imaging Network. Repeated measurements of the sources were performed on PET scanners and in dose calibrators. The measured scanner and dose calibrator signal biases were used to compute the bias in SUVs at multiple time points for each site over a 14-month period. Estimation of absolute SUV accuracy was confounded by bias from the solid phantoms' physical properties. On average, the intrascanner coefficient of variation for SUV measurements was 3.5%. Over the entire length of the study, single-scanner SUV values varied over a range of 11%. Dose calibrator bias was not correlated with scanner bias. Calibration factors from the image metadata were nearly as variable as scanner signal, and were correlated with signal for many scanners. SUVs often showed low intrascanner variability between successive measurements but were also prone to shifts in apparent bias, possibly in part due to scanner recalibrations that are part of regular scanner quality control. Biases of key factors in the computation of SUVs were not correlated and their temporal variations did not cancel out of the computation. Long-lived sources and image metadata may provide a check on the recalibration process. PMID- 29322069 TI - Method comparison for cardiac image registration of coronary computed tomography angiography and 3-D echocardiography. AB - Treatment decision for coronary artery disease (CAD) is based on both morphological and functional information. Image fusion of coronary computed tomography angiography (CCTA) and three-dimensional echocardiography (3DE) could combine morphology and function into a single image to facilitate diagnosis. Three semiautomatic feature-based methods for CCTA/3DE registration were implemented and applied on CAD patients. Methods were verified and compared using landmarks manually identified by a cardiologist. All methods were found feasible for CCTA/3DE fusion. PMID- 29322070 TI - Fuzzy c-means segmentation of major vessels in angiographic images of stroke. AB - Patients suffering from ischemic stroke develop varying degrees of pial arterial supply (PAS), which can affect patient response to reperfusion therapy and risk of hemorrhage. Since vessel segmentation may be an important part in identifying PAS, we present a fuzzy c-means (FCM) clustering method to segment major vessels in x-ray angiograms. Our approach consists of semiautomatic region of interest (ROI) delineation, separation of major vessels from capillary blush and/or background noise through FCM clustering, and identification of the major vessel category. This method was applied to a database of x-ray angiograms of 24 patients acquired at various frame rates. The ground truth for performance evaluation was the designation by an expert radiologist selecting image pixels as being vessel or nonvessel. From receiver operating characteristic (ROC) analysis, area under the ROC curve (AUC) was the performance metric in the task of distinguishing between major vessels and blush or background. When clustering data into three categories and performing FCM segmentation on each ROI separately, the AUC was 0.89 for the entire database and [Formula: see text] for all examined frame-rates. In conclusion, our method showed promising performance in identifying major vessels and is anticipated to become an integral part of automatic quantification of PAS. PMID- 29322071 TI - Algorithm development for intrafraction radiotherapy beam edge verification from Cherenkov imaging. AB - Imaging of Cherenkov light emission from patient tissue during fractionated radiotherapy has been shown to be a possible way to visualize beam delivery in real time. If this tool is advanced as a delivery verification methodology, then a sequence of image processing steps must be established to maximize accurate recovery of beam edges. This was analyzed and developed here, focusing on the noise characteristics and representative images from both phantoms and patients undergoing whole breast radiotherapy. The processing included temporally integrating video data into a single, composite summary image at each control point. Each image stack was also median filtered for denoising and ultimately thresholded into a binary image, and morphologic small hole removal was used. These processed images were used for day-to-day comparison computation, and either the Dice coefficient or the mean distance to conformity values can be used to analyze them. Systematic position shifts of the phantom up to 5 mm approached the observed variation values of the patient data. This processing algorithm can be used to analyze the variations seen in patients being treated concurrently with daily Cherenkov imaging to quantify the day-to-day disparities in delivery as a quality audit system for position/beam verification. PMID- 29322072 TI - Plan in 2-D, execute in 3-D: an augmented reality solution for cup placement in total hip arthroplasty. AB - Reproducibly achieving proper implant alignment is a critical step in total hip arthroplasty procedures that has been shown to substantially affect patient outcome. In current practice, correct alignment of the acetabular cup is verified in C-arm x-ray images that are acquired in an anterior-posterior (AP) view. Favorable surgical outcome is, therefore, heavily dependent on the surgeon's experience in understanding the 3-D orientation of a hemispheric implant from 2-D AP projection images. This work proposes an easy to use intraoperative component planning system based on two C-arm x-ray images that are combined with 3-D augmented reality (AR) visualization that simplifies impactor and cup placement according to the planning by providing a real-time RGBD data overlay. We evaluate the feasibility of our system in a user study comprising four orthopedic surgeons at the Johns Hopkins Hospital and report errors in translation, anteversion, and abduction as low as 1.98 mm, 1.10 deg, and 0.53 deg, respectively. The promising performance of this AR solution shows that deploying this system could eliminate the need for excessive radiation, simplify the intervention, and enable reproducibly accurate placement of acetabular implants. PMID- 29322074 TI - Data supporting the understanding of modulatory function of opioid analgesics in mouse macrophage activity. AB - The data presented herein expand the current understanding of the modulatory function of opioid drugs in mouse macrophage activity described in our relevant research article (Filipczak-Bryniarska et al., 2017) [1], in which we characterize the influence of morphine, buprenorphine and oxycodone on humoral and cell-mediated immune response in mice. Among other things, we have shown the effects of treatment with assayed analgesics on macrophage ability to induce antigen-specific B-cell response to sheep red blood cells as well as to generate reactive oxygen intermediates and nitric oxide. The current data demonstrate the effects of morphine, buprenorphine or oxycodone administration on phagocytosis of sheep red blood cells and zymosan by mouse macrophages, supplementing the data on immune modulatory capacities of assayed drugs, recently reported by us (Filipczak Bryniarska et al., 2017; Kozlowski et al., 2017) [1,2]. PMID- 29322073 TI - High-fat/high-sucrose diet results in higher bone mass in aged rats. AB - Intake of high-fat/high-sucrose (HFS) diet or high fat diet influences bone metabolism in young rodents, but its effects on bone properties of aged rodents still remain unclear. This study aimed to examine the effects of HFS diet intake on trabecular bone architecture (TBA) and cortical bone geometry (CBG) in aged rats. Fifteen male Wistar rats over 1 year were randomly divided into two groups. One group was fed a standard laboratory diet (SLD) and the other group was fed a HFS diet for six months. The femur/tibia, obtained from both groups at the end of experimental period, were scanned by micro-computed tomography for TBA/CBG analyses. Serum biochemical analyses were also conducted. Body weight was significantly higher in the HFS group than in the SLD group. In both femur and tibia, the HFS group showed higher trabecular/cortical bone mass in reference to bone mineral content, volume bone mineral density and TBA/CBG parameters compared with the SLD group. In addition, serum calcium, inorganic phosphorus, total protein, triacylglycerol, HDL and TRACP-5b levels were significantly higher in the HFS group than in the SLD group. There were good correlations between body weight and bone parameters in the femur and tibia. These results suggest that HFS diet intake results in higher bone mass in aged rats. Such effects of HFS diet intake might have been induced by increased body weight. PMID- 29322075 TI - Data about knowledge and tendency towards organic foods use in Tehran. AB - Improper use of chemical fertilizer and pesticide poses not only threats to the environmental safety but also major public health issues globally. The adverse effects of chemical fertilizers and pesticides forced agricultural scientist to look for safer methods such as organic farming. This study was aimed at assessing the knowledge and tendency towards organic foods use among people of living in a megacity, Tehran. Data was collected from "fall exhibition" and "health food exhibition" participants using pretested questionnaire. Data were entered, cleaned and analyzed by SPSS version 17. T-test, ANOVA and Regression analysis were carried out and the association was considered significant at p-value less than 0.05. A total of 400 respondents participated in the study, making a response rate of 100%. There were reverse relation between knowledge and accessibility and positive relation between trust, marriage and gender and no relation with price. Building trust in consumer, and allocation of a special label, known logos and ways to track most of the products sold as organic foods seems necessary for increasing consumption. PMID- 29322076 TI - A spline-based regression parameter set for creating customized DARTEL MRI brain templates from infancy to old age. AB - This dataset contains the regression parameters derived by analyzing segmented brain MRI images (gray matter and white matter) from a large population of healthy subjects, using a multivariate adaptive regression splines approach. A total of 1919 MRI datasets ranging in age from 1-75 years from four publicly available datasets (NIH, C-MIND, fCONN, and IXI) were segmented using the CAT12 segmentation framework, writing out gray matter and white matter images normalized using an affine-only spatial normalization approach. These images were then subjected to a six-step DARTEL procedure, employing an iterative non-linear registration approach and yielding increasingly crisp intermediate images. The resulting six datasets per tissue class were then analyzed using multivariate adaptive regression splines, using the CerebroMatic toolbox. This approach allows for flexibly modelling smoothly varying trajectories while taking into account demographic (age, gender) as well as technical (field strength, data quality) predictors. The resulting regression parameters described here can be used to generate matched DARTEL or SHOOT templates for a given population under study, from infancy to old age. The dataset and the algorithm used to generate it are publicly available at https://irc.cchmc.org/software/cerebromatic.php. PMID- 29322077 TI - Near infrared hyperspectral dataset of healthy and infected apple tree leaves images for the early detection of apple scab disease. AB - This dataset presents two series of hyperspectral images of healthy and infected apple tree leaves acquired daily, from two days after inoculation until an advanced stage of infection (11 days after inoculation). The hyperspectral images were calibrated by reflection correction and registered to match the geometry of one reference image. On the last experiment day, scab positions are provided. PMID- 29322078 TI - Received signal strength and local terrain profile data for radio network planning and optimization at GSM frequency bands. AB - The behaviour of radio wave signals in a wireless channel depends on the local terrain profile of the propagation environments. In view of this, Received Signal Strength (RSS) of transmitted signals are measured at different points in space for radio network planning and optimization. However, these important data are often not publicly available for wireless channel characterization and propagation model development. In this data article, RSS data of a commercial base station operating at 900 and 1800 MHz were measured along three different routes of Lagos-Badagry Highway, Nigeria. In addition, local terrain profile data of the study area (terrain elevation, clutter height, altitude, and the distance of the mobile station from the base station) are extracted from Digital Terrain Map (DTM) to account for the unique environmental features. Statistical analyses and probability distributions of the RSS data are presented in tables and graphs. Furthermore, the degree of correlations (and the corresponding significance) between the RSS and the local terrain parameters were computed and analyzed for proper interpretations. The data provided in this article will help radio network engineers to: predict signal path loss; estimate radio coverage; efficiently reuse limited frequencies; avoid interferences; optimize handover; and adjust transmitted power level. PMID- 29322079 TI - Fibroblast and keratinocyte gene expression following exposure to extracts of neem plant (Azadirachta indica). AB - This data article provides gene expression profiles, determined by using real time PCR, of fibroblasts and keratinocytes treated with 0.01% and 0.001% extracts of neem plant (Azadirachta indica), local name "Kohomba" in Sri Lanka, harvested in Sri Lanka. For fibroblasts, the dataset includes expression profiles for genes encoding hyaluronan synthase 1 (HAS1), hyaluronan synthase 2 (HAS2), hyaluronidase-1 (HYAL1), hyaluronidase-2 (HYAL2), versican, aggrecan, CD44, collagen, type I, alpha 1 (COL1A1), collagen, type III, alpha 1 (COL3A1), collagen, type VII, alpha 1 (COL7A1), matrix metalloproteinase 1 (MMP1), acid ceramidase, basic fibroblast growth factor (bFGF), fibroblast growth factor-7 (FGF7), vascular endothelial growth factor (VEGF), interleukin-1 alpha (IL 1alpha), cyclooxygenase-2 (cox2), transforming growth factor beta (TGF-beta), and aquaporin 3 (AQP3). For keratinocytes, the expression profiles are for genes encoding HAS1, HAS2, HYAL1, HYAL2, versican, CD44, IL-1alpha, cox2, TGF-beta, AQP3, Laminin5, collagen, type XVII, alpha 1 (COL17A1), integrin alpha-6 (ITGA6), ceramide synthase 3 (CERS3), elongation of very long chain fatty acids protein 1 (ELOVL1), elongation of very long chain fatty acids protein 4 (ELOVL4), filaggrin (FLG), transglutaminase 1 (TGM1), and keratin 1 (KRT1). The expression profiles are provided as bar graphs. PMID- 29322080 TI - Data on a single oral dose of camu camu (Myrciaria dubia) pericarp extract on flow-mediated vasodilation and blood pressure in young adult humans. AB - This data article describes the flow-mediated vasodilation (FMD) responses, represented by changes in arterial diameter, and blood pressure changes in young adults after a single oral dose of camu camu (Myrciaria dubia) pericarp extract or placebo (cross-over design). Ten healthy men and 10 healthy women participated in this study. Ultrasonic diagnostic equipment was used to monitor arterial diameter changes, indicative of FMD, for 110 s after the administration of the camu camu extract or placebo. In addition, the systolic and diastolic blood pressure values were recorded. PMID- 29322081 TI - Data of expression status of miR- 29a and its putative target mitochondrial apoptosis regulatory gene DRP1 upon miR-15a and miR-214 inhibition. AB - Data is about the mitochondrial apoptosis regulatory framework genes PUMA, DRP1 (apoptotic), and ARC (anti-apoptotic) analysis after the employment of their controlling miRNAs inhibitors. The data represents putative conserved targeting of seed regions of miR-15a, miR-29a, and miR-214 with respective target genes PUMA, DRP1, and ARC. Data is of cross interference in expression levels of one miRNA family, miR-29a and its putative target DRP1 upon the inhibitory treatment of other miRNAs 15a and 214. PMID- 29322082 TI - Data on microbial and physiochemical characteristics of inlet and outlet water from household water treatment devices in Rasht, Iran. AB - In this research, we measured various parameters related to drinking water quality include turbidity, temperature, pH, EC, TDS, Alkalinity, fecal and total coliform, heterotrophic plate count (HPC), free chlorine, Mn, Ca, Mg, Fe, Na, Cl , F-, HCO3, in the inlet and outlet of household water treatment devices according to the standard methods for the examination of water and wastewater (W.E. Federation and Association and A.P.H., 2005) [1]. Sixty four inlet and outlet water samples were taken from thirty two household water treatment devices from eight different residential blocks in Golsar town of Rasht, Iran. The data obtained from experiments were analyzed using the software Special Package for Social Sciences (SPSS 24) and MS-Excel. PMID- 29322083 TI - Dataset of coded handwriting features for use in statistical modelling. AB - The data presented here is related to the article titled, "Using handwriting to infer a writer's country of origin for forensic intelligence purposes" (Agius et al., 2017) [1]. This article reports original writer, spatial and construction characteristic data for thirty-seven English Australian writers and thirty-seven Vietnamese writers. All of these characteristics were coded and recorded in Microsoft Excel 2013 (version 15.31). The construction characteristics coded were only extracted from seven characters, which were: 'g', 'h', 'th', 'M', '0', '7' and '9'. The coded format of the writer, spatial and construction characteristics is made available in this Data in Brief in order to allow others to perform statistical analyses and modelling to investigate whether there is a relationship between the handwriting features and the nationality of the writer, and whether the two nationalities can be differentiated. Furthermore, to employ mathematical techniques that are capable of characterising the extracted features from each participant. PMID- 29322084 TI - Data on a delivery of biomolecules into Nicothiana benthamiana leaves using different nanoparticles. AB - Nanoparticles (NPs) have a number of unique properties associated with their ultrasmall size and exhibit many advantages compared with existing plant biotechnology platforms for delivery of proteins, RNA and DNA of various sizes into the plant cells (Arruda et al., 2015; Silva et al., 2010; Martin-Ortigosa et al., 2014; Mitter et al., 2017) [1], [2], [3], [4]. The data presented in this article demonstrate a delivery of biomolecules into Nicotiana benthamiana plant leaves using various types of NPs including gold, iron oxide and chitosan NPs and methods of biolistic bombardment and infiltration. The data demonstrate physical characteristics of NPs coated with fluorescently labeled protein and small RNA (size and zeta-potential) and visualization of nanocomplexes delivery into cells of N. benthamiana leaves by fluorescence microscopy. PMID- 29322085 TI - Data on the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE. AB - This article contains the dataset referring to the article "Study of the effect of the dispersion of functionalized nanoparticles TiO2 with photocatalytic activity in LDPE" (Jahell et al., 2016) [1]. It includes the FT-IR data of the functionalized nanoparticles of TiO2 with Hexadecyltrimethoxysilane in different degrees of functionalization, thermogravimetric analysis, distribution and particle size in the polymer matrix by scanning electron microscopy (SEM), carbonyl index, gravimetry and scanning electron microscopy of the nanocomposite degraded by UV radiation. PMID- 29322087 TI - The Endosomal Protein Endotubin Is Required for Enterocyte Differentiation. AB - Background & Aims: During late embryonic development and through weaning, enterocytes of the ileum are highly endocytic. Defects in endocytosis and trafficking are implicated in neonatal disease, however, the mechanisms regulating trafficking during the developmental period are incompletely understood. The apical endosomal protein endotubin (EDTB) is highly expressed in the late embryonic and neonatal ileum. In epithelial cells in vitro, EDTB regulates both trafficking of tight junction proteins and proliferation through modulation of YAP activity. However, EDTB function during the endocytic stage of development of the intestine is unknown. Methods: By using Villin-CreERT2, we induced knockout of EDTB during late gestation and analyzed the impact on endocytic compartments and enterocyte structure in neonates using immunofluorescence, immunocytochemistry, and transmission electron microscopy. Results: Deletion of the apical endosomal protein EDTB in the small intestine during development impairs enterocyte morphogenesis, including loss of the apical endocytic complex, defective formation of the lysosomal compartment, and some cells had large microvillus-rich inclusions similar to those observed in microvillus inclusion disease. There also was a decrease in apical endocytosis and mislocalization of proteins involved in apical trafficking. Conclusions: Our results show that EDTB-mediated trafficking within the epithelial cells of the developing ileum is important for maintenance of endocytic compartments and enterocyte integrity during early stages of gut development. PMID- 29322088 TI - Successful management of persistent lower extremity lymphedema with suction assisted lipectomy. AB - Introduction: Lower-extremity lymphedema is a significant complication attributed to gynecologic cancer surgery, potentially effectuating severe edema and discernible pain. Case report: We report on a patient who developed persistent, lower-extremity lymphedema following her treatment for cervix cancer. Despite repeated efforts to manage the lymphedema with conventional measures, the patient's condition had not markedly improved. Thereafter, she underwent a suction-assisted lipectomy that effectively resolved her symptoms. Conclusion: Since lymphedema often remains disabling and incurable following traditional therapy, suction-assisted lipectomy should be considered as an alternative when endeavoring to optimally manage this complication. PMID- 29322086 TI - Engineered Livers for Infectious Diseases. AB - Engineered liver systems come in a variety of platform models, from 2-dimensional cocultures of primary human hepatocytes and stem cell-derived progeny, to 3 dimensional organoids and humanized mice. Because of the species-specificity of many human hepatropic pathogens, these engineered systems have been essential tools for biologic discovery and therapeutic agent development in the context of liver-dependent infectious diseases. Although improvement of existing models is always beneficial, and the addition of a robust immune component is a particular need, at present, considerable progress has been made using this combination of research platforms. We highlight advances in the study of hepatitis B and C viruses and malaria-causing Plasmodium falciparum and Plasmodium vivax parasites, and underscore the importance of pairing the most appropriate model system and readout modality with the particular experimental question at hand, without always requiring a platform that recapitulates human physiology in its entirety. PMID- 29322090 TI - New 1,1'-Ferrocene Bis(sulfonyl) Reagents. AB - Several new 1,1'-bis(sulfonyl)ferrocenes designed for the synthesis of sulfonamide linked biological conjugates have been prepared. 1,1' Bis(sulfonylbromide)ferrocene can be produced from the corresponding sulfonylchloride via a bis(sulfonylhydrazide) intermediate. Bis(sulfonyl-N hydroxybenzotriazole)ferrocene can also be synthesized from the sulfonyl chloride, and reaction of glycine methyl ester with the sulfonyl chloride affords a [3]ferrocenophane complex. All new compounds have been structurally characterized by X-ray crystallography. PMID- 29322089 TI - The Wisconsin Registry for Alzheimer's Prevention: A review of findings and current directions. AB - The Wisconsin Registry for Alzheimer's Prevention is a longitudinal observational cohort study enriched with persons with a parental history (PH) of probable Alzheimer's disease (AD) dementia. Since late 2001, Wisconsin Registry for Alzheimer's Prevention has enrolled 1561 people at a mean baseline age of 54 years. Participants return for a second visit 4 years after baseline, and subsequent visits occur every 2 years. Eighty-one percent (1270) of participants remain active in the study at a current mean age of 64 and 9 years of follow-up. Serially assessed cognition, self-reported medical and lifestyle histories (e.g., diet, physical and cognitive activity, sleep, and mood), laboratory tests, genetics, and linked studies comprising molecular imaging, structural imaging, and cerebrospinal fluid data have yielded many important findings. In this cohort, PH of probable AD is associated with 46% apolipoprotein E (APOE) epsilon4 positivity, more than twice the rate of 22% among persons without PH. Subclinical or worse cognitive decline relative to internal normative data has been observed in 17.6% of the cohort. Twenty-eight percent exhibit amyloid and/or tau positivity. Biomarker elevations, but not APOE or PH status, are associated with cognitive decline. Salutary health and lifestyle factors are associated with better cognition and brain structure and lower AD pathophysiologic burden. Of paramount importance is establishing the amyloid and tau AD endophenotypes to which cognitive outcomes can be linked. Such data will provide new knowledge on the early temporal course of AD pathophysiology and inform the design of secondary prevention clinical trials. PMID- 29322092 TI - Anderson localizations and photonic band-tail states observed in compositionally disordered platform. AB - Anderson localization in random structures is an intriguing physical phenomenon, for which experimental verifications are far behind theoretical predictions. We report the first experimental confirmations of photonic band-tail states and a complete transition of Anderson localization. An optically activated photonic crystal alloy platform enables the acquisition of extensive experimental data exclusively on pure eigenstates, revealing direct evidence of band-tail states and Anderson localization transition within the band-tail states. Analyses of both experimental and simulated data lead to a comprehensive picture of photon localization that is highly consistent with theories by Anderson and others. We believe that our results provide a strong experimental foundation upon which both the fundamental understandings and application possibility of Anderson localization can be promoted significantly. PMID- 29322091 TI - A Retroviral Replicating Vector Encoding Cytosine Deaminase and 5-FC Induces Immune Memory in Metastatic Colorectal Cancer Models. AB - Treatment of tumors with Toca 511, a gamma retroviral replicating vector encoding cytosine deaminase, followed by 5-fluorocytosine (5-FC) kills tumors by local production of 5-fluorouracil (5-FU). In brain tumor models, this treatment induces systemic anti-tumor immune responses and long-term immune-mediated survival. Phase 1 Toca 511 and Toca FC (extended-release 5-FC) clinical trials in patients with recurrent high-grade glioma show durable complete responses and promising survival data compared to historic controls. The work described herein served to expand on our earlier findings in two models of metastatic colorectal carcinoma (mCRC). Intravenous (i.v.) delivery of Toca 511 resulted in substantial tumor-selective uptake of vector into metastatic lesions. Subsequent treatment with 5-FC resulted in tumor shrinkage, improved survival, and immune memory against future rechallenge with the same CT26 CRC cell line. Similar results were seen in a brain metastasis model of mCRC. Of note, 5-FC treatment resulted in a significant decrease in myeloid-derived suppressor cells (MDSCs) in mCRC tumors in both the liver and brain. These results support the development of Toca 511 and Toca FC as a novel immunotherapeutic approach for patients with mCRC. A phase 1 study of i.v. Toca 511 and Toca FC in solid tumors, including mCRC, is currently underway (NCT02576665). PMID- 29322093 TI - Heralded quantum steering over a high-loss channel. AB - Entanglement is the key resource for many long-range quantum information tasks, including secure communication and fundamental tests of quantum physics. These tasks require robust verification of shared entanglement, but performing it over long distances is presently technologically intractable because the loss through an optical fiber or free-space channel opens up a detection loophole. We design and experimentally demonstrate a scheme that verifies entanglement in the presence of at least 14.8 +/- 0.1 dB of added loss, equivalent to approximately 80 km of telecommunication fiber. Our protocol relies on entanglement swapping to herald the presence of a photon after the lossy channel, enabling event-ready implementation of quantum steering. This result overcomes the key barrier in device-independent communication under realistic high-loss scenarios and in the realization of a quantum repeater. PMID- 29322094 TI - Electrically switchable metadevices via graphene. AB - Metamaterials bring subwavelength resonating structures together to overcome the limitations of conventional materials. The realization of active metadevices has been an outstanding challenge that requires electrically reconfigurable components operating over a broad spectrum with a wide dynamic range. However, the existing capability of metamaterials is not sufficient to realize this goal. By integrating passive metamaterials with active graphene devices, we demonstrate a new class of electrically controlled active metadevices working in microwave frequencies. The fabricated active metadevices enable efficient control of both amplitude (>50 dB) and phase (>90 degrees ) of electromagnetic waves. In this hybrid system, graphene operates as a tunable Drude metal that controls the radiation of the passive metamaterials. Furthermore, by integrating individually addressable arrays of metadevices, we demonstrate a new class of spatially varying digital metasurfaces where the local dielectric constant can be reconfigured with applied bias voltages. In addition, we reconfigure resonance frequency of split-ring resonators without changing its amplitude by damping one of the two coupled metasurfaces via graphene. Our approach is general enough to implement various metamaterial systems that could yield new applications ranging from electrically switchable cloaking devices to adaptive camouflage systems. PMID- 29322095 TI - Low-threshold parametric oscillation in organically modified microcavities. AB - Coherent frequency generators are an enabling platform in basic science and applied technology. Originally reliant on high-power lasers, recently comb generation has been demonstrated in ultrahigh-Q microcavities. The large circulating intensity within the cavity results in strong light-matter interaction, giving rise to Kerr parametric oscillations for comb generation. However, the comb generation threshold is limited by competing nonlinear effects within the cavity material and low intrinsic material Kerr coefficients. We report a new strategy to fabricate near-infrared frequency combs based on combining high-Q microcavities with monomolecular layers of highly nonlinear small molecules. The functionalized microcavities demonstrate high-efficiency parametric oscillation in the near-IR and generate primary frequency combs with 0.88-mW thresholds, improving optical parametric oscillation generation over nonfunctionalized devices by three orders of magnitude. This organic-inorganic approach enables otherwise unattainable performance and will inspire the next generation of integrated photonic device platforms. PMID- 29322096 TI - Dystrophin gene expression and intracellular calcium changes in the giant freshwater prawn, Macrobrachium rosenbergii, in response to white spot symptom disease infection. AB - Background: Dystrophin, an essential protein functional in the maintenance of muscle structural integrity is known to be responsible for muscle deterioration during white spot syndrome virus (WSSV) infection among prawn species. Previous studies have shown the upregulation of dystrophin protein in Macrobrachium rosenbergii (the giant freshwater prawn) upon white spot syndrome virus (WSSV) infection. The literature has also suggested the important role of calcium ion alterations in causing such muscle diseases. Thus, the interest of this study lies within the linkage between dystrophin functioning, intracellular calcium and white spot syndrome virus (WSSV) infection condition. Methods: In this study, the dystrophin gene from M. rosenbergii (MrDys) was first characterised followed by the characterization of dystrophin gene from a closely related shrimp species, Penaeus monodon (PmDys). Dystrophin sequences from different phyla were then used for evolutionary comparison through BLAST analysis, conserved domain analysis and phylogenetic analysis. The changes in mRNA expression levels of dystrophin and the alteration of intracellular calcium concentrations in WSSV infected muscle cells were then studied. Results: A 1246 base pair long dystrophin sequence was identified in the giant freshwater prawn, Macrobrachium rosenbergii (MrDys) followed by 1082 base pair long dystrophin sequence in P. monodon (PmDys). Four conserved domains were identified from the thirteen dystrophin sequences compared which were classified into 5 different phyla. From the phylogenetic analysis, aside from PmDys, the characterised MrDys was shown to be most similar to the invertebrate phylum of Nematoda. In addition, an initial down-regulation of dystrophin gene expression followed by eventual up-regulation, together with an increase in intracellular calcium concentration [Ca2+] i were shown upon WSSV experimental infection. Discussion: Both the functionality of the dystrophin protein and the intracellular calcium concentration were affected by WSSV infection which resulted in progressive muscle degeneration. An increased understanding of the role of dystrophin-calcium in MrDys and the interactions between these two components is necessary to prevent or reduce occurrences of muscle degeneration caused by WSSV infection, thereby reducing economic losses in the prawn farming industry from such disease. PMID- 29322097 TI - Toward a leading indicator of catastrophic shifts in complex systems: Assessing changing conditions in nation states. AB - The 20th century was characterized by substantial change on a global scale. There were multiple wars and unrest, social and political transitions, technological innovation and widespread development that impacted every corner of the earth. In order to assess the sustainability implications of these changes, we conducted a study of three advanced nations particularly affected during this time: France, Germany and the United States (USA). All three nation states withstood these changes and yet continued to thrive, which speaks to their resilience. However, we were interested in determining whether any of these countries underwent a regime shift during this period and if they did, whether there was advanced warning that transition was imminent. This study seeks to evaluate systemic trends in each country by exploring key variables that describe its condition over time. We use Fisher Information to assess changing conditions in the nation states based on trends in social, economic and environmental variables and employ Bayes Theorem as an objective means of determining whether declines in Fisher information provide early warning signals of critical transitions. Results indicate that while the United States was relatively stable and France experienced a great deal of change during this period, only Germany appeared to undergo a regime shift. Further, each country exhibited decreasing Fisher information when approaching significant events (e.g., World Wars, Great Depression), and reflected unique mechanisms linked to dynamic changes in each nation state. This study highlights the potential of using trends in Fisher information as a sentinel for evaluating dynamic change and assessing resilience in coupled human and natural systems. PMID- 29322098 TI - Diuron degradation by bacteria from soil of sugarcane crops. AB - The isolation of microorganisms from soil impacted by xenobiotic chemicals and exposing them in the laboratory to the contaminant can provide important information about their response to the contaminants. The purpose of this study was to isolate bacteria from soil with historical application of herbicides and to evaluate their potential to degrade diuron. The isolation media contained either glucose or diuron as carbon source. A total of 400 bacteria were isolated, with 68% being Gram-positive and 32% Gram-negative. Most isolates showed potential to degrade between 10 and 30% diuron after five days of cultivation; however Stenotrophomonas acidophila TD4.7 and Bacillus cereus TD4.31 were able to degrade 87% and 68%, respectively. The degradation of diuron resulted in the formation of the metabolites DCPMU, DCPU, DCA, 3,4-CAC, 4-CA, 4-CAC and aniline. Based on these results it was proposed that Pseudomonas aeruginosa TD2.3, Stenotrophomonas acidaminiphila TD4.7, B. cereus TD4.31 and Alcaligenes faecalis TG 4.48, act on 3,4-DCA and 4-CA by alkylation and dealkylation while Micrococcus luteus and Achromobacter sp follow dehalogenation directly to aniline. Growth on aniline as sole carbon source demonstrates the capacity of strains to open the aromatic ring. In conclusion, the results show that the role of microorganisms in the degradation of xenobiotics in the environment depends on their own metabolism and also on their synergistic interactions. PMID- 29322100 TI - Bglbrick strategy for the construction of single domain antibody fusions. AB - Single domain antibodies, recombinantly expressed variable domains derived from camelid heavy chain antibodies, are often expressed as multimers for detection and therapeutic applications. Constructs in which several single domain antibodies are genetically fused serially, as well as those in which single domain antibodies are genetically linked with domains that naturally form multimers, yield improvement in apparent binding affinity due to avidity. Here, using a single domain antibody that binds envelope protein from the Dengue virus, we demonstrated the construction of single domain antibody dimers using the Bglbrick cloning strategy. Constructing single domain antibodies and multimerization domains as Bglbrick parts enables the easy mixing and matching of parts. The dimeric constructs provided enhanced fluorescent signal in assays for detection of Dengue virus like particles over the monomeric single domain antibody. PMID- 29322099 TI - Outbreaks caused by vancomycin-resistant Enterococcus faecium in hematology and oncology departments: A systematic review. AB - Background: Vancomycin-resistance in Enterococcus faecium (VRE) poses a major threat in health care settings. It is well known that patients in hematology and oncology departments are especially at risk of nosocomial VRE acquisition. This systematic review of the literature provides data on the main sources, transmission modes and potential risk factors for VRE acquisition as well as appropriate infection control measures in order to terminate such nosocomial outbreaks. Methods: Data on nosocomial VRE outbreaks on hematology and oncology wards was retrieved from the Outbreak Database and PubMed. Results: A total of 35 VRE outbreaks describing 757 affected patients and 77 deaths were included in this review. The most frequent site of pathogen detection were stool samples or rectal swabs (57% of all isolation sites), followed by blood cultures (30%). The most common outbreak source was an index patient. The main modes of transmission were 1) hands of health care workers, 2) contact to a contaminated environment and 3) patient-to-patient contact. The most common risk factor for VRE positivity was prior antibiotic treatment. The most common infection control measures performed were screening and isolating or cohorting of patients. Conclusion: A rational use of antibiotics in hematology and oncology units is recommended in order to reduce selection pressure on resistant pathogens such as VRE. In addition the importance of hand hygiene should be stressed to all staff whenever possible. PMID- 29322101 TI - A novel individual-level morphological brain networks constructing method and its evaluation in PET and MR images. AB - Mapping the human brain is one of the great scientific challenges of the 21st century. Brain network analysis is an effective technique based on graph theory that is widely used to investigate network patterns in the human brain. Currently, mapping an individual brain network using a single image has been a hotspot in the field of brain science; techniques, such as the Kullback-Leibler (KL) method, have applications in structural Magnetic Resonance (MR) imaging. However, maintaining an image's intensity, shape, texture and gradient information during feature extraction is very challenging. In this study, we propose a novel method for individual-level network construction based on the high-resolution Brainnetome Atlas, which shows 246 brain regions. Principal components (PCs) were obtained for each brain region using principal component analysis (PCA) for feature extraction. Individual brain networks were followed and used to construct the PC similarity measurement based on the mutual information (MI) method. To evaluate the robustness of the proposed method, three independent experiments were carried out. In the first, 34 healthy subjects underwent two Carbon 11-labeled Pittsburgh compound B Positron emission tomography (11C-PiB PET) scans; in the second, 32 healthy subjects underwent two structural MRI scans; and in the last, 10 Alzheimer's disease (AD) subjects and 10Healthy Control (HC) subjects underwent 11C-PiB PET scans. For each subject, network metrics including clustering coefficient, path length, small-world coefficient, efficiency and node betweenness centrality were calculated. The results suggested that both the individual PET and structural MRI networks exhibited a good small-word property, and the variances within subjects was also quite small in all metrics, The average value of Coefficient of variation (CV) map was 0.33 and 0.32 for PiB PET and MR images respectively, and intra-class correlation coefficients (ICC) range from approximately 0.4 to 0.7, indicating that the new method was well adapted to the subjects. The results of intra-class correlation coefficients from the test-retest experiment were consistent with previous research employing KL divergence, but with low computational complexity. Further, differences between AD subjects and HC subjects can be observed in network metrics. The method proposed herein provides a new perspective for investigating individual brain connectivity; it would enable neuroscientists to further understand the functions of the human brain. PMID- 29322102 TI - Analysis of climate and anthropogenic impacts on runoff in the Lower Pra River Basin of Ghana. AB - The Lower Pra River Basin (LPRB), located in the forest zone of southern Ghana has experienced changes due to variability in precipitation and diverse anthropogenic activities. Therefore, to maintain the functions of the ecosystem for water resources management, planning and sustainable development, it is important to differentiate the impacts of precipitation variability and anthropogenic activities on stream flow changes. We investigated the variability in runoff and quantified the contributions of precipitation and anthropogenic activities on runoff at the LPRB. Analysis of the precipitation-runoff for the period 1970-2010 revealed breakpoints in 1986, 2000, 2004 and 2010 in the LPRB. The periods influenced by anthropogenic activities were categorized into three periods 1987-2000, 2001-2004 and 2005-2010, revealing a decrease in runoff during 1987-2000 and an increase in runoff during 2001-2004 and 2005-2010. Assessment of monthly, seasonal and annual runoff depicted a significant increasing trend in the runoff time series during the dry season. Generally, runoff increased at a rate of 9.98 * 107m3yr-1, with precipitation variability and human activities contributing 17.4% and 82.3% respectively. The dominant small scale alluvial gold mining activity significantly contributes to the net runoff variability in LPRB. PMID- 29322103 TI - A national survey of MRI safety practices in Ghana. AB - Objective: The aim of the present study was to assess current MRI safety practices among MRI facilities in Ghana, and their compliance with the 2013 American College of Radiology (ACR) guidance document on MR safe practices. Material and methods: A questionnaire developed from the 2013 ACR Guidance Document was used to collect information on magnetic field strengths, MR safety policy and compliance, patient screening, emergency preparedness, infection control, MRI safety accessories, equipment safety, signage and barriers, report of adverse incidents, and access and communication. Results: Out of the 13 MRI facilities identified, response rate of 92% was obtained. Six (50%) facilities indicated they have MRI safety policy and have it present and readily available to facility staff. Five (42%) facilities indicated they have handheld magnets, and 1(8%) has ferromagnetic detection system. Only one (8%) had crash carts. Seven (58%) facilities have zone 4 clearly marked with a red light and lighted sign stating "The Magnet is On". One (8%) recorded projectile incident and fire outbreak. Eight (67%) facilities have direct visual observation of access corridors to zone IV. Conclusion: There was compliance in some areas of MRI safety practice, however there were some shortfalls which need to be addressed. We therefore recommend improvement in the following areas: (1) establishment, implementation, and maintenance of current MRI safety policy, (2) patient screening, (3) provision of training and routine drills on emergency response protocols with documentations, (4) emergency preparedness, and (5) provision of colour codes for equipment used within MRI environment. PMID- 29322104 TI - Soil total carbon and nitrogen and crop yields after eight years of tillage, crop rotation, and cultural practice. AB - Information on the long-term effect of management practices on soil C and N stocks is lacking. An experiment was conducted from 2004 to 2011 in the northern Great Plains, USA to examine the effects of tillage, crop rotation, and cultural practice on annualized crop residue (stems + leaves) returned to the soil and grain yield, and soil total C (STC) and total N (STN) stocks at the 0-120 cm depth. Tillage practices were no-tillage (NT) and conventional tillage (CT) and crop rotations were continuous spring wheat (Triticum aestivum L.) (CW), spring wheat-pea (Pisum sativum L.) (W-P), spring wheat-barley (Hordeum vulgaris L.) hay pea (W-B-P), and spring wheat-barley hay-corn (Zea mays L.)-pea (W-B-C-P). Cultural practices were traditional (conventional seed rates and plant spacing, conventional planting date, broadcast N fertilization, and reduced stubble height) and improved (variable seed rates and plant spacing, delayed planting, banded N fertilization, and increased stubble height). Crop residue and grain yield were greater with CW and W-P than W-B-P and grain yield was greater with the traditional than the improved practice. The STC at 10-20 and 90-120 cm was greater with CW or W-P than other crop rotations in CT and greater with CW than W B-P in NT. The STN at 20-40 cm was greater with W-P than CW and W-B-P in CT. With NT and the improved cultural practice, STN at 0-5, 5-10, 20-40, and 60-90 cm was greater with W-P and W-B-C-P than other crop rotations. The STN at 0-10 cm correlated with annualized crop residue and grain yield (r = 0.94-0.97, P <= 0.05). Increased crop residue returned to the soil increased soil C stock with CW and W-P and N stock with W-P, but removal of aboveground crop biomass for hay decreased stocks with W-B-P. Increased soil N stock had a beneficial effect on crop grain yield. PMID- 29322105 TI - Simple visit behavior unifies complex Zika outbreaks. AB - New outbreaks of Zika in the U.S. are imminent. Human nature dictates that many individuals will continue to revisit affected 'Ground Zero' patches, whether out of choice, work or family reasons - yet this feature is missing from traditional epidemiological analyses. Here we show that this missing visit-revisit mechanism is by itself capable of explaining quantitatively the 2016 human Zika outbreaks in all three Ground Zero patches. Our findings reveal counterintuitive ways in which this human flow can be managed to tailor any future outbreak's duration, severity and time-to-peak. Effective public health planning can leverage these results to impact the evolution of future outbreaks via soft control of the overall human flow, as well as to suggest best-practice visitation behavior for local residents. PMID- 29322106 TI - Questioning the role of Facebook in maintaining Syrian social capital during the Syrian crisis. AB - The Syrian crisis is considered the 'world's single largest crisis for almost a quarter of a century that has the biggest refugee population from a single conflict in a generation' (UN High Commissioner for Refugees, 2016). The rapid adoption of Facebook among Syrians questions whether it helps in maintaining the social capital of a war-torn nation and a dispersed Syrian population worldwide. Data was collected by means of a Facebook survey from 964 Syrian users. Results indicated that Facebook enhanced social identity and social capital through facilitating communication, collaboration and resource sharing among dispersed Syrians inside and outside the country. However, the offline rift of the nation was extended to Facebook through promoting hate speech among opposed parties. Results of this study may advance the understanding of the role of Facebook on social capital in countries going through similar crisis situations. PMID- 29322107 TI - The effect of light touch on balance control during overground walking in healthy young adults. AB - Balance control is essential for safe walking. Adding haptic input through light touch may improve walking balance; however, evidence is limited. This research investigated the effect of added haptic input through light touch in healthy young adults during challenging walking conditions. Sixteen individuals walked normally, in tandem, and on a compliant, low-lying balance beam with and without light touch on a railing. Three-dimensional kinematic data were captured to compute stride velocity (m/s), relative time spent in double support (%DS), a medial-lateral margin of stability (MOSML) and its variance (MOSMLCV), as well as a symmetry index (SI) for the MOSML. Muscle activity was evaluated by integrating electromyography signals for the soleus, tibialis anterior, and gluteus medius muscles bilaterally. Adding haptic input decreased stride velocity, increased the %DS, had no effect on the MOSML magnitude, decreased the MOSMLCV, had no effect on the SI, and increased activity of most muscles examined during normal walking. During tandem walking, stride velocity and the MOSMLCV decreased, while %DS, MOSML magnitude, SI, and muscle activity did not change with light touch. When walking on a low-lying, compliant balance beam, light touch had no effect on walking velocity, MOSML magnitude, or muscle activity; however, the %DS increased and the MOSMLCV and SI decreased when lightly touching a railing while walking on the balance beam. The decreases in the MOSMLCV with light touch across all walking conditions suggest that adding haptic input through light touch on a railing may improve balance control during walking through reduced variability. PMID- 29322108 TI - Production of biodiesel by enzymatic transesterification of waste sardine oil and evaluation of its engine performance. AB - Waste sardine oil, a byproduct of fish industry, was employed as a low cost feedstock for biodiesel production. It has relatively high free fatty acid (FFA) content (32 mg KOH/g of oil). Lipase enzyme immobilized on activated carbon was used as the catalyst for the transesterification reaction. Process variables viz. reaction temperature, water content and oil to methanol molar ratio were optimized. Optimum methanol to oil molar ratio, water content and temperature were found to be 9:1, 10 v/v% and 30 degrees C respectively. Reusability of immobilized lipase was studied and it was found after 5 cycles of reuse there was about 13% drop in FAME yield. Engine performance of the produced biodiesel was studied in a Variable Compression Engine and the results confirm that waste sardine oil is a potential alternate and low-cost feedstock for biodiesel production. PMID- 29322109 TI - Influence of hydrodynamic features in the transport and fate of hazard contaminants within touristic ports. Case study: Torre a Mare (Italy). AB - The environmental quality of Torre a Mare port (Italy) was assessed evaluating on one side, the chemical concentration of nine metals and metalloids within bottom sediments and on the other one, by exploring the impact of hydrodynamic conditions in contaminant's transport within the most polluted basins. The investigated port was selected as case study because it resulted much more polluted than it was expected based on the touristic port activities and related stressors loading on it. In order to determine the origin and fate of contaminants in the port basin, 2D numerical simulations were carried out by MIKE21 software. The hydrodynamic module (HD) based on a rectangular grid was initially used to characterize the flow field into two domains that cover the inner and offshore harbor area. Then, advection-dispersion (AD) and water quality (WQ) modules were coupled in order to simulate the simultaneous processes of transport and dispersion of hypothetical pollutant sources. The dissolved/suspended sediment particulates (DSS) were selected as contaminant tracers. The comparative analysis between simulation responses and the real metal contaminant distribution showed high agreement, suggesting that contaminants mainly come from outside port and tend to accumulate in the inner basin. In fact, hydrodynamic circulations cause inflowing streams toward the harbor entrance and the particular port morphology hampers the exit of fine sediments from the inner basin, enhancing thus the accumulation of sediment-associated contaminants within the port area. The study confirms that the quality of touristic port areas strongly depends on both pollution sources located within and outside the port domain and it is controlled mainly by the hydrodynamic-driven processes. PMID- 29322110 TI - Mixotrophic transition induced lipid productivity in Chlorella pyrenoidosa under stress conditions for biodiesel production. AB - Influence of mixotrophic mode and its transition to various trophic modes under stress conditions was assessed during two stage cultivation of Chlorella pyrenoidosa. Significant lipid productivity was triggered under low light intensity, glucose + bicarbonate supplementation and nitrogen starvation. The association between biomass and lipid productivity, fatty acid composition during mixotrophic transition was critically evaluated. Biomass in growth phase (GP) and stress phase (SP) was 6.14 g/l and 5.14 g/l, respectively, in mixotrophic mode. Higher lipid productivity of 284 g/kg and 154.3 g/kg of neutral lipids was achieved in SP in mixotrophic-mixotrophic (MM) and mixotrophic-heterotrophic (MH) modes, respectively. Stress conditions resulted in high unsaturated fatty acid methyl esters in MH mode. In addition, neutral lipid content was 58% in MH and 52% in MM, that can be attributed to carbon source that is supplemented even in stress phase. Exploring such novel strategies can generate sustainable avenues for biodiesel production. PMID- 29322111 TI - A Patient Advocacy Group Summit, Cancer Care in Turkey and The Society of Breast Health. PMID- 29322112 TI - Managing Male Mammary Maladies. AB - This review examines the symptoms, need for referral and management of the benign breast conditions which afflict males, together with the steps that are necessary to exclude or confirm male breast cancer. The most common complaint is gynaecomastia, either true or pseudo, and the majority of these cases need reassurance without over-investigation. Drugs that induce breast enlargement are described in order that, when possible, a medication switch can be made. Men receiving endocrine therapy for prostate cancer may develop painful gynaecomastia and this can be relieved with tamoxifen. All men with breast cancer need mammography as part of their work-up but this should not be used as a screening technique for symptomatic males. Because of lack of lobular development, both cysts and fibroadenomas are very rare in men; but those with nipple discharge need referral and investigation as some will have underlying malignancy. PMID- 29322113 TI - A Systematic Review and Pooled Analysis of Studies of Oral Etoposide in Metastatic Breast Cancer. AB - Objective: Oral etoposide has been used as a later line therapy for metastatic breast cancer for more than twenty years. Its efficacy and clinical usefulness has been suggested in small phase II studies in the metastatic breast cancer population and the drug has also the added advantage of convenient oral administration. Despite these advantages, the place of oral etoposide in treatment of metastatic breast cancer has been challenged in the last decade due to introduction of several other chemotherapeutics, including options available orally, as well as novel targeted therapies. This report pools the data on response rates and survival from all available oral etoposide studies in order to reach a more precise estimate of the clinical benefit of the drug. Materials and methods: A review of the literature was performed for studies of oral etoposide in metastatic breast cancer. Data were extracted from eligible studies and summary statistics derived. Calculations of pooled response rates and survival estimates were performed according to a random or fixed effect model as appropriate. Results: The pooled estimate of Response Rate derived from twelve studies found in the English literature was 18.5% (95% CI 11.5-25.5%). The pooled estimate of Clinical Benefit Rate (CBR) was 45.8% (95% CI 38.6-53.0%) and median Overall Survival (OS) approached 1 year. Summarized adverse effects profile data show an overall manageable toxicity. Conclusion: This pooled analysis provides evidence of a moderate clinical effectiveness of oral etoposide in metastatic breast cancer that could be useful in situations that options are limited but active treatment still appropriate. PMID- 29322114 TI - Characteristics of Special Type Breast Tumors in Our Center. AB - Objective: Breast cancer is a heterogeneous disease with different histological types. Ductal breast cancer constitutes the vast majority of the breast cancers. However limited data are present in the rest of breast cancers called special or rare type breast cancers. Here in this study, we tried to describe the clinical features of special type breast cancers in our center. Materials and Methods: Retrospective descriptive study was performed in Kocaeli University School of Medicine, Department of General Surgery between January 2000 and January 2016. Women diagnosed with primary breast cancer other than ductal carcinoma were included to the study. In total, 101 patients were evaluated according to histologic types, molecular types, Tumor Node Metastasis (TNM) stages, and grades. Survival of the patients was also evaluated. Results: Medullary and metaplastic types showed basal type; tubular, mucinous, micropapillary carcinoma, cribriform, lobular and apocrine tumors showed luminal type molecular pattern. Neither the existence of ductal carcinoma nor any histologic types had any effects on survival. Apocrine tumors were presented in younger ages. Conclusion: Histologic types of breast cancer are closely related with the molecular types of the breast cancer. Tumor size, grade, stage of the disease can show differences among histological types which might be due to the genetic background, late onset or limited number of patients. In order to achieve more significant results, multicenter national studies are needed. PMID- 29322115 TI - Breast Cancer Screening Behaviors of First Degree Relatives of Women Receiving Breast Cancer Treatment and the Affecting Factors. AB - Objective: First-degree relatives of women with breast cancer are under higher risk when compared with the general population. The aim of this study is to evaluate breast cancer screening behaviors of women who are first-degree relatives of women with breast cancer and factors affecting these behaviors. Materials and Methods: This descriptive study included 240 patient relatives, who agreed to participate in the study through contact with first-degree relatives of 133 patients who were receiving breast cancer treatment at the Oncology and Chemotherapy unit of an university hospital in Turkey. Data were collected using the "Descriptive Characteristics Form," which consisted of socio-demographic characteristics, health history, breast cancer risk level and health beliefs as well as the "Breast Cancer Screening Behavior Evaluation Form". Results: Out of the subjects, 17% reported doing breast self examination (BSE), 18% reported getting clinic breast examination (CBE) and 17% reported getting mammography. Logistic regression analysis showed that perceived susceptibility increased BSE by 0.57 times and increased mammography by 0.77 times. Physical exercise increased CBE by 0.21 times and increased mammography by 0.13 times. Conclusions: It was found that women with familial breast cancer history (FBCH) had lower participation in screening behaviors. Higher susceptibility perception and regular physical exercise are the determinant variables. Women with a higher susceptibility can be led towards the screening and their participation can be increased. In women with family history, the development of healthy lifestyle behaviors like physical exercise should be supported. PMID- 29322116 TI - Efficiency of Imaging Modalities in Male Breast Disease: Can Ultrasound Give Additional Information for Assessment of Gynecomastia Evolution? AB - Objective: The purpose of this study is to present mammography and ultrasound findings of male breast lesions and to investigate the ability of diagnostic modalities in estimating the evolution of gynecomastia. Materials and Methods: Sixty-nine male patients who admitted to Taksim and Bakirkoy Education and Research Hospitals and underwent mammography (MG) and ultrasonography (US) imaging were retrospectively evaluated. Duration of symptoms and mammographic types of gynecomastia according to Appelbaum's classifications were evaluated, besides the sonographic findings in mammographic types of gynecomastia. Results: The distribution of 69 cases were as follows: gynecomastia 47 (68.11%), pseudogynecomastia 6 (8.69%) primary breast carcinoma 7 (10.14%), metastatic carcinoma 1 (1.4%), epidermal inclusion cyst 2 (2.8%), abscess 2 (2.8%), lipoma 2 (2.8%), pyogenic granuloma 1 (1.4%), and granulomatous lobular mastitis 1 (1.4%). Gynecomastia patients who had symptoms less than 1 year had nodular gynecomastia (34.6%) as opposed to dendritic gynecomastia (61.5%) (p<0.01) based on mammography results according to Appelbaum's classifications. In patients having symptoms for 1 to 2 years, diffuse gynecomastia (70%) had a higher rate than the dendritic type (20%). Patients having the symptoms more than 2 years had diffuse gynecomastia (57.1%) while 42.9% had dendritic gynecomastia (p<0.001). With sonographic examination patients who had symptoms less than 1 year had higher rates of dendritic gynecomastia (92.3%) than noduler type (1.9 %). Patients having symptoms for 1 to 2 years had more dentritic gynecomastia (70%) than diffuse type (30%). Patients having symptoms more than 2 years had diffuse gynecomastia (57.1%) comparable to dendritic gynecomastia (42.9 %). Conclusion: Diagnostic imaging modalities are efficient tools for estimation of gynecomastia evolution as well as the diagnosis of other male breast diseases. There seems to be an incongruity between duration of clinical complaints and diagnostic imaging classification of gynecomastia. The use of these high resolution US findings may demonstrate an early phase fibrosis especially in patients visualized by mammography as with nodular phase. PMID- 29322117 TI - Oncoplastic Breast Conserving Surgery: Aesthetic Satisfaction and Oncological Outcomes. AB - Objective: Oncoplastic breast conserving surgery (BCS) involves radical excision of tumors while maintaining the natural breast contours. In this study, we present the results of the oncoplastic BCS surgeries performed in our clinic. Material and Methods: 13 breast cancer patients who had undergone oncoplastic BCS were included in this retrospective study. Postoperative photographs and retrospective chart reviews were used to evaluate the results. Aesthetic satisfaction level was verbally obtained from the patients. Results: Oncoplastic BCS was performed using superomedial, superolateral, superior and inferior pedicles. All the patients were highly satisfied with the final aesthetic results and tumor free at the postoperative 12 months. Conclusion: Oncoplastic BCS can achieve favorable results regarding the final aesthetic appearance and tumor control. PMID- 29322118 TI - MR Imaging Features of Tubular Carcinoma: Preliminary Experience in Twelve Masses. AB - Objective: We retrospectively analyzed the magnetic resonance (MR) imaging features and diffusion-weighted imaging findings of the 12 masses of 10 patients with tubular carcinoma (TC), including mammography and sonography findings. Materials and Methods: Mammographic, sonographic and magnetic resonance imaging features in 12 histopathologically confirmed masses diagnosed as TC of the breast within 10 patients were evaluated. Morphologic characteristics, enhancement features, apparent diffusion coefficient (ADC) values were reviewed. Results: On mammography (n=5), TC appeared as high density masses with indistinct, spiculated or obscured margins. Sonographically, TC appeared as a hypoechoic appearance (n=12) with posterior acoustic shadowing in nine. On MR imaging, the margins of ten of twelve masses were irregular. Internal enhancement patterns were heterogeneous in 10 patients. Dynamic enhancement patterns illustrated plateau kinetics (n=8). On the T2-weighted images 4 masses were hypointense, and 8 were hyperintense; hypointense internal septation was found in seven of these. Tubular carcinoma appeared as hyperintense on diffusion-weighted imaging with ADC values of 0.85+/-0.16*10-3 mm2/s that was lower than the normal parenchyma of 1.25+/ 0.25*10-3 mm2/s. Conclusion: According to our study with a limited number of cases, tubular carcinomas can be described as hyperintense breast carcinomas with or without dark internal septation like appearance on T2-weighted images. Low ADC values from DW imaging can be used to differentiate TC from hyperintense benign breast lesions. PMID- 29322119 TI - Breast Injuries in Female Collegiate Basketball, Soccer, Softball and Volleyball Athletes: Prevalence, Type and Impact on Sports Participation. AB - Objective: In 2015-2016, over 214,000 female athletes competed at the collegiate level in the United States (U.S.). The National Collegiate Athletic Association (NCAA) collects injury data; however, breast-related injuries do not have a specific reporting category. The exact sequelae of breast injury are unknown; however, a relationship between breast injury and fat necrosis, which mimics breast carcinoma, is documented outside of sports participation. Breast injuries related to motor vehicle collisions, seatbelt trauma, and blunt trauma have been reported. For these reasons, it is important to investigate female breast injuries in collegiate sports. The objectives of this study are to report the prevalence of self-reported breast injuries in female collegiate athletes, explore injury types and treatments, and investigate breast injury reporting and impact on sports participation. Materials and Methods: A cross-sectional study of female collegiate athletes at four U.S. universities participating in basketball, soccer, softball, or volleyball. Main outcome measure was a questionnaire regarding breast injuries during sports participation. Results: Almost half of the 194 participants (47.9%) reported a breast injury during their collegiate career, less than 10% reported their injury to health personnel with 2.1% receiving treatment. Breast injuries reported by breast injuries reported by sport include softball (59.5%), basketball (48.8%), soccer (46.7%), and volleyball (34.6%). Conclusions: The long-term effects and sequelae of breast injuries reported by female collegiate athletes during sport play are unknown. Nearly 50% of participants had a breast injury during sports activities. Although 18.2% indicated that breast injury affected sports participation, only 9.6% of the injuries were reported to medical personnel with 2.1% receiving treatment. PMID- 29322120 TI - Juvenile Papillomatosis of the Breast in a Pre-Pubertal Girl: An Uncommon Diagnosis. AB - Juvenile papillomatosis of the breast represents a rare benign proliferative disorder that affects women younger than thirty years of age. Although it is a localized lesion, it does not have well-demarcated margins. These patients tend to have a strong family history for cancer. As it has similar clinical presentation with that of a fibroadenoma, it usually receives the diagnosis of the latter in the preoperative period. Nonetheless, it has distinct microscopic features such as ductal papillomatosis and cysts that are helpful in the diagnosis. In this article, a case of juvenile papillomatosis diagnosed in a young girl who presented due to a mass of the breast was presented. For the fairly rare case, a total mass excision was performed with preserved breast tissue. The exact diagnosis was made by postoperative histopathological examination. PMID- 29322121 TI - Silicone Granuloma Associated with Pectoral Muscle Involvement after Ruptured Breast Implant: a Novel case report. AB - In this study, an unusual case of a patient who was previously operated on a ruptured breast implant following silicone granuloma associated with pectoral muscle involvement is reported. A 72-year-old woman had undergone breast augmentation surgery when she was 52-year-old and silicone implant rupture 10 years later. After 10 years of ruptured silicone implant, her mammography showed diffuse, multiple high-density nodules in the left breast. The pectoral muscle was significantly hypertrophic. The magnetic resonance imaging showed that the pectoral muscle was quite hypertrophic and had heterogeneous enhancement. In clinical consideration and the presence of the suspected malignancy, a biopsy was performed. The histological analysis identified pectoral muscle and breast tissue, which had been mainly replaced by giant cells, along with an apparent foreign body response. Silicone granuloma can present itself as a soft tissue mass. Malignancy is the most important differential diagnosis. Meticulous follow up is recommended for these patients. PMID- 29322122 TI - Granulomatous Mastitis Concurrence with Breast Cancer. AB - Idiopathic Granulomatous Mastitis (IGM) is a rare, chronic, non-malignant and non life-threatening breast disease. IGM may mimic carcinoma of the breast. This case report is about concurrence of chronic granulomatous mastitis with breast cancer. The important aspect of this case is that it is the 4th case where IGM and breast cancer are present concurrently. PMID- 29322123 TI - Dehydrogenation of dimethylamine-borane mediated by Group 1 pincer complexes. AB - Group 1 salts containing carbazolido NNN pincer ligands are precatalysts for the dehydrogenation of Me2NH.BH3. NMR monitoring and DOSY studies show a heavy dependence on the metal and solvent, allowing in some cases selective formation of dehydrogenation products consistent with hydrogen liberation. PMID- 29322124 TI - New approaches to the lithiation kinetics in reaction-limited battery electrodes through electrochemical impedance spectroscopy. AB - Electrochemical impedance spectroscopy is a widely employed technique probing kinetic limitations in the charging of battery electrodes. Hindrance mechanisms locate at the interfaces between the active material and the electrolyte, and in the bulk of the reacting compound. Rate-limiting mechanisms are viewed as resistive circuit elements and can be extracted using standard impedance analyzers. Classical impedance models consider charge transport, mainly ion diffusion as slower carrier, as the principal kinetic limitation impeding full electrode charging. This is indeed the case for many technologically relevant battery compounds. In other instances, instead of being diffusion-limited, electrodes may undergo charging limitation caused by the kinetics of the reduction reaction itself. Specific impedance models for reaction-limited mechanisms are summarized here and proved for relevant electrode compounds, in particular for conversion or alloying electrodes in which Li+ intake produces a full rearrangement of the lattice structure with significant atomic displacement. PMID- 29322125 TI - A luminescent Schiff-base heterotrinuclear Zn2Dy single-molecule magnet with an axial crystal field. AB - We report here the synthesis and investigation into the magnetic properties of a luminescent trinuclear Zn2Dy Schiff-base complex that exhibits a zero-field single-molecule magnet behaviour. Magneto-structural correlation confirms that the axial crystal-field is generated by the phenoxide moieties while the characteristic Dy3+-based luminescence is observed. PMID- 29322126 TI - Electro-click construction of hybrid nanocapsule films with triggered delivery properties. AB - Hollow nanocapsules (named Hybridosomes(r)) possessing a polymer/nanoparticle shell were used to covalently construct hybrid films in a one-pot fashion. The alkyne bearing organic/inorganic Hybridosomes(r) were reticulated with azide bearing homobifunctional polyethyleneglycol (PEG) linkers, by using an electro click reaction on F-SnO2 (FTO) electrodes. The coatings were obtained by promoting the Cu(i)-catalyzed click reaction between alkyne and azide moieties in the vicinity of the electrode by the electrochemical generation of Cu(i) ions. The physicochemical properties of the covalently reticulated hybrid films obtained were studied by SEM, AFM, UV-vis and fluorescence spectroscopy. The one pot covalent click reaction between the nanocapsules and the PEG linkers in the film did not affect the desirable features of the Hybridosomes(r) i.e. their hollow nanostructure their chemical versatility and their pH-sensitivity. Consequently, both the composition and the cargo-loading of the Hybridosomes(r) films could be tuned, demonstrating the versatility of these hybrid coatings. For example, the Hybridosome(r) films were used to encapsulate and release a bodipy fluorescent probe in response to either a pH drop or the application of an oxidative +1 V potential (vs. Ag/AgCl) at the substrate. By advancing the field of electro-synthesized films a step further toward the design of complex physicochemical interfaces, these results open perspectives for multifunctional coatings where chemical versatility, controllable stability and a hollow nanostructure are required. PMID- 29322127 TI - Chemical tracer diffusion of Sr and Co in polycrystalline Ca-deficient CaMnO3 delta with CaMn2O4 precipitates. AB - Diffusivity on the A- and B-site of polycrystalline perovskite CaMnO3-delta with Ca deficiency and spinel CaMn2O4 (marokite) as a secondary phase was studied using chemical tracers and secondary ion mass spectrometry (SIMS) complemented by electron probe microanalysis (EPMA). Thin films containing Sr and Co chemical tracers were deposited on the polished surface of the polycrystalline composite sample followed by annealing at 800-1200 degrees C for 96 h. Diffusion profiles for each tracer were determined with SIMS, followed by calculation of diffusion coefficients by fitting to appropriate models. The Sr tracer showed mainly lattice diffusion, with an activation energy of 210 +/- 30 kJ mol-1, whereas the Co tracer showed a combination of lattice and enhanced grain-boundary diffusion, with activation energies of 270 +/- 30 kJ mol-1 and 380 +/- 40 kJ mol-1, respectively. The diffusivities may be used to predict interdiffusion and lifetime of junctions between n-type CaMnO3-delta or CaMnO3-delta/CaMn2O4 composites and metallization interlayers or p-type leg materials in oxide thermoelectrics. In particular, the relatively high effective diffusivity of Co in polycrystalline CaMnO3-delta may play a role in the reported fast formation of the secondary phase (Ca3Co2-yMnyO6) between p-type Ca3Co3.92O9+delta and n-type CaMnO3-delta in a direct p-n thermoelectric junction. PMID- 29322129 TI - Bulk and surface properties of the Ruddlesden-Popper oxynitride Sr2TaO3N. AB - Oxynitrides with the perovskite structure are promising candidates for photocatalysis under visible light due to their appropriate optical and electronic properties. Recently, layered perovskites have attracted attention for their improved performance with respect to bulk perovskites in photocatalytic water splitting. In this paper, we investigate the structural and electronic properties of the layered Ruddlesden-Popper oxynitride Sr2TaO3N and its (001) and (100) surfaces using density functional theory (DFT) calculations. We find that the energetically favoured configuration of the bulk has an in-plane cis anion order and exhibits rotations of the TaON octahedra. Furthermore, we show that the TaON-terminated (001) surface suppresses exciton recombination due to higher energy surface states, giving a potential explanation for the good photocatalytic performance. PMID- 29322130 TI - Systematic charge distribution changes in Bi- and Pb-3d transition metal perovskites. AB - Charge distribution changes in Bi- and Pb-3d transition metal perovskite type oxides were examined by comprehensive precise structural analysis, spectroscopy, and theoretical investigations. The change in the depth of the d level of the transition metal caused the intermetallic charge transfer. A temperature-induced charge-transfer transition in chemically modified BiNiO3 results in technologically important negative thermal expansion. PMID- 29322131 TI - Steric control in the metal-ligand electron transfer of iminopyridine-ytterbocene complexes. AB - A systematic study of reactions between Cp*2Yb(THF) (Cp* = eta5-C5Me5, 1) and iminopyridine ligands (IPy = 2,6-iPr2C6H3N[double bond, length as m-dash]CH(C5H3N R), R = H (2a), 6-C4H3O (2b), 6-C4H3S (2c), 6-C6H5 (2d)) featuring similar electron accepting properties but variable denticity and steric demand, has provided a new example of steric control on the redox chemistry of ytterbocenes. The reaction of the unsubstituted IPy 2a with 1, either in THF or toluene, gives rise to the paramagnetic species Cp*2YbIII(IPy)- (3a) as a result of a formal one electron oxidation of the YbII ion along with IPy reduction to a radical-anionic state. The reactions of 1 with substituted iminopyridines 2b-d, bearing aryl or hetero-aryl dangling arms on the 6 position of the pyridine ring occur in a non coordinating solvent (toluene) only and afford coordination compounds of a formally divalent ytterbium ion, coordinated by neutral IPy ligands Cp*2YbII(IPy)0 (3b-d). The X-ray diffraction studies revealed that 2a-c act as bidentate ligands; while the radical-anionic IPy in 3a chelates the YbIII ion with both nitrogens, neutral IPy ligands in 3b and 3c participate in the metal coordination sphere through the pyridine nitrogen and O or S atoms from the furan or thiophene moieties, respectively. Finally, in complex 3d the neutral IPy ligand formally adopts a monodentate coordination mode. However, an agostic interaction between the YbII ion and an ortho C-H bond of the phenyl ring has been detected. Imino-nitrogens in 3b-d are not involved in the metal coordination. Variable temperature magnetic measurements on 3a are consistent with a multiconfigurational ground state of the Yb ion and suggest that the largest contribution arises from the 4f13-radical configuration. For complexes 3b and 3c the data of magnetic measurements are indicative of a YbII-closed shell ligand electronic distribution. Complex 3d is characterized by a complex magnetic behavior which does not allow for an unambiguous estimation of its electronic structure. The results are rationalized using DFT and CSSCF calculations. Unlike diazabutadiene analogues, 3a does not undergo a solvent mediated metal-ligand electron transfer and remains paramagnetic in THF solution. On the other hand, complexes 3b-d readily react with THF to afford 1 and free IPy 2b-d. PMID- 29322132 TI - Facile three-step synthesis and photophysical properties of [8]-, [9]-, and [12]cyclo-1,4-naphthalene nanorings via platinum-mediated reductive elimination. AB - Herein we report a facile three-step synthesis of [8]-, [9]-, and [12]cyclo-1,4 naphthalene nanorings as the conjugated segments of carbon nanotubes. The nanorings were created via a platinum-mediated assembly of 1,4-naphthalene-based units and subsequent reductive elimination in the presence of triphenylphosphine. This present platinum-mediated approach is attractive because of its simple three step process to produce the targeted nanorings in a high overall yield. In addition, their photophysical properties were studied using UV-vis spectroscopy and photoluminescence (PL) spectroscopy, which further revealed their unique size dependent properties. PMID- 29322133 TI - Anti-fibrotic activity of polyphenol-enriched sugarcane extract in rats via inhibition of p38 and JNK phosphorylation. AB - Sugarcane (Saccharum officinarum L.), which is one of the most important sources of sugar, is also rich in polyphenolic compounds. In this study, polyphenols from sugarcane were extracted, and the dominant component was characterized quantitatively via HPLC to be (-)-epicatechin. Fibrosis occurs in many organs and is associated with severe tissue damage. Liver fibrosis is the excessive accumulation of extracellular matrix proteins and advanced liver fibrosis, resulting in cirrhosis, liver failure and portal hypertension. Thus, the prevention and treatment of liver fibrosis is urgent. Therefore, we further investigated the protective effect of sugarcane polyphenol extract (SPE) on carbon tetrachloride-induced liver fibrosis in rats and observed that SPE (20 or 50 mg kg-1) improved the serum GOT (glutamic oxaloacetic transferase) and GPT (glutamic pyruvate transaminase) levels and decreased the expression of alpha smooth muscle actin (alpha-SMA) in liver tissues. The mechanistic study showed that in transforming growth factor beta1(TGF-beta1)-induced hepatic stellate cells (HSCs), SPE attenuated the phosphorylation of p38 and JNK1/2 and down regulated the expression of alpha-SMA. Collectively, SPE mitigated carbon tetrachloride-induced liver fibrosis in rats and its mechanism may be related to the p38 and JNK signalling pathways. PMID- 29322134 TI - Label-free detection of fibrinogen based on the fibrinogen-enhanced peroxidase activity of a fibrinogen-hemin composite. AB - A simple, label-free colorimetric method for the determination of fibrinogen (Fib) in plasma is presented. In this work, it was observed that Fib interacted with hemin to form a hemin-Fib composite. Because Fib prevented hemin from the formation of m-oxo-dimers, the hemin-Fib composite possesses excellent peroxidase like activity. Importantly, the peroxidase-like activity of Fib-hemin increased with the increase in the Fib. This allows us to utilize the H2O2-ABTS colorimetric system for the quantitative analysis of Fib. This optimized method provided a linear determination range of 2.0-100 pM with a correlation of 0.9975. The limit of detection for Fib was experimentally determined to be 0.7 pM based on a signal-to-noise ratio (S/N) of 3. This novel approach provides a rapid, sensitive, cost efficient and robust bioassay for detection of Fib in pathology and clinical applications. PMID- 29322135 TI - Quinoline-para-quinones and metals: coordination-assisted formation of quinoline ortho-quinones. AB - The reaction of the para-quinone 6,7-dichloroquinoline-5,8-dione with various transition metal dimers led to the unexpected formation of quinoline-ortho quinone metal complexes. Systematic variation of the reaction conditions helped identify the solvent as the source of the carbonyl oxygen. PMID- 29322137 TI - Extremely low loading of Ru species on hydroxyapatite as an effective heterogeneous catalyst for olefin epoxidation. AB - We report a new class promising heterogeneous catalyst for olefin epoxidation based on 0.05 wt% Ru species supported on hydroxyapatite, which was prepared through a simple cation-exchange process between RuCl3.nH2O and hydroxyapatite. The new catalyst showed high activity, excellent selectivity and good recyclability for various olefins in the presence of molecular oxygen and iso butyraldehyde as co-oxidants. PMID- 29322138 TI - Separation and characterization of cellulose nanocrystals by multi-detector asymmetrical-flow field-flow fractionation. AB - Cellulose nanocrystals (CNCs) are renewable, naturally derived polymeric nanomaterials receiving substantial attention for a wide range of potential applications. The recent availability of high quality reference materials will facilitate the development and validation of measurement methods needed to advance the scientific and commercial use of CNCs. In the present study, we demonstrate an optimized method to fractionate CNCs with narrow size dispersion based on asymmetrical-flow field-flow fractionation (AF4) coupled with on-line multi-angle light scattering (MALS), dynamic light scattering (DLS), and differential refractometry (dRI). A stable suspension of CNC (Certified Reference Material CNCD-1, National Research Council-Canada) in deionized water was prepared using a dispersion method provided by NRC and adopted from a protocol originally developed at the National Institute of Standards and Technology. The as-prepared material was initially characterized in batch mode to validate the NRC dispersion method. AF4 was then optimized for channel and cross flow, mobile phase composition, and injection volume, among other parameters. Additionally, suspensions containing (1.25-10) mg mL-1 CNC were injected directly into the dRI detector (off-line), yielding a dn/dc value of 0.148 +/- 0.003 mL g-1. dRI was then used as an on-line mass sensitive detector to quantify recovery. Results show that maximum recovery (~ 99%) was achieved under optimized conditions. The weight-averaged molar mass (Mw) was estimated at roughly 107 Da from a partial Zimm analysis. The optical radius of gyration, Rg, and the hydrodynamic radius, Rh, were measured during elution. The shape factor (Rg/Rh) ranged from 1.5 to 1.9 for the fractionated material, supporting an elongated or rod-like structure. To our knowledge, this is the first time that both the morphology and molar mass of CNCs have been directly measured for the full distribution of species. Finally, we developed and demonstrated a semi-preparatory fractionation method to separate CNCs at the milligram scale for off-line research and analysis. PMID- 29322139 TI - Effects of polysaccharides from purple sweet potatoes on immune response and gut microbiota composition in normal and cyclophosphamide treated mice. AB - In this study, three polysaccharides including water-soluble polysaccharide (WSP), dilute alkali-soluble polysaccharide (DASP) and concentrated alkali soluble polysaccharide (CASP) were extracted from purple sweet potatoes and then administered to normal and cyclophosphamide (CTX) treated mice by gavage. The results showed that WSP and CASP could restore the spleen index and immune cytokine (IL-2 and IL-6) levels in CTX treated mice, while DASP could enhance the levels of TNF-alpha, IL-2 and IL-6. As compared to the normal control group, WSP and CASP treatment groups exhibited increased levels of Bacteroidetes, Lachnospiraceae and Oscillospira, but decreased levels of Firmicutes, Alcaligenaceae and Sutterella in normal mice. When compared with a model control group, all the three polysaccharide treatment groups showed relatively higher abundances of Bacteroidetes, Ruminococcaceae, Lachnospiraceae, Ruminococcus and Oscillospira but lower levels of Firmicutes, Proteobacteria, Alcaligenaceae and Sutterella in CTX treated mice. Moreover, all the polysaccharides could enhance the production of acetic acid, propionic acid and butyric acid in normal mice, while WSP could upregulate the production of these short chain fatty acids in CTX treated mice. PMID- 29322140 TI - Development of antioxidant gliadin particle stabilized Pickering high internal phase emulsions (HIPEs) as oral delivery systems and the in vitro digestion fate. AB - In this paper, we demonstrate for the first time the use of gliadin particles to structure algal oil (rich in DHA) and to exert chemical stability against lipid oxidation via the Pickering high internal phase emulsion (HIPE) strategy. The gliadin/chitosan colloid particles (GCCPs) were effectively adsorbed and anchored at the algal oil-water interface. Concomitantly, the particle-coated droplets as building blocks constructed a percolating 3D-network framework, endowing Pickering HIPEs with viscoelastic and self-supporting attributes. In addition, Pickering HIPEs loaded with shell (HIP-curEs) or core curcumin (HIPEs-cur) were constructed to depress the oxidation of algal oil. The content of primary (lipid hydroperoxides) and secondary (malondialdehyde and hexanal) oxidation products in HIPEs was lower than that in bulk oil. The oxidative stability of HIPEs was further improved in shell and core curcumin. An in vitro gastrointestinal (GI) model was constructed to characterize the lipid digestion, lipid oxidation as well as curcumin bioaccessibility of the ingested Pickering HIPEs. Lipid oxidation in the Pickering HIPEs was retarded under GI fluids, especially in the presence of core curcumin. The free fatty acid (FFA) fraction released was below 30% for all HIPEs, reflecting that the Pickering HIPEs formed restrict the digestion of fat or oil and potentially help to fight obesity. Interestingly, this route enhanced the bioaccessibility of curcumin from only 2.13% (bulk algal oil) to 53.61% (core curcumin); in particular, it reached 76.82% for shell curcumin. These results help to fill the gap between the physicochemical performance of the gliadin particle stabilized Pickering HIPEs and their potential applications as oral delivery systems of nutraceuticals. This work opens concomitantly an attractive strategy to convert liquid oils into antioxidant soft solids without artificial trans fats, as a potential alternative for PHOs. PMID- 29322141 TI - Polydiacetylenic nanofibers as new siRNA vehicles for in vitro and in vivo delivery. AB - Polydiacetylenic nanofibers (PDA-Nfs) obtained by photopolymerization of surfactant 1 were optimized for intracellular delivery of small interfering RNAs (siRNAs). PDA-Nfs/siRNA complexes efficiently silenced the oncogene Lim-1 in the renal cancer cells 786-O in vitro. Intraperitoneal injection of PDA-Nfs/siLim1 downregulated Lim-1 in subcutaneous tumor xenografts obtained with 786-O cells in nude mice. Thus, PDA-Nfs represent an innovative system for in vivo delivery of siRNAs. PMID- 29322142 TI - Nanoconfinement effects of chemically reduced graphene oxide nanoribbons on poly(vinyl chloride). AB - Polymeric nanocomposites with graphene-based nanocarbons (GNCs) have been extensively studied with emphasis on the percolation of nanofillers toward electrical, rheological, and mechanical reinforcement. In this study, we report an unusual indirect reinforcing phenomenon of highly defective GNCs dispersed in the poly(vinyl chloride) (PVC) matrix via densification of the polymer packing originating from nanoscale confinement. Herein, chemically reduced graphene oxide nanoribbons (C-rGONRs) are employed as a nanofiller. The inclusion of defective and oxygen-functionalized C-rGONRs resulted in a dramatic densification of the PVC host with extremely low C-rGONR loading, largely exceeding the theoretical calculation from a rule of mixture. Along with the densification, the glass transition temperature of PVC also increased by 28.6 degrees C at 0.1 wt% filler loading. Remarkably, the oxygen barrier property and mechanical toughness under tension for the PVC/C-rGONR nanocomposite were the maximum when the greatest densification occurred. The structure-property relationship of the nanocomposites has been discussed with an emphasis on the nanoscale confinement phenomenon. PMID- 29322143 TI - Oxidative dehydrogenation reaction of short alkanes on nanostructured carbon catalysts: a computational account. AB - Recent progress from first principles computational studies is presented for catalytic properties of nanostructured carbon catalysts in the oxidative dehydrogenation (ODH) reaction of short alkanes. Firstly, a brief introduction is given on the development of carbon catalysts in ODH since 1970. Oxygen functional groups have pivotal importance for ODH on nanostructured carbon catalysts. We discuss the oxidation process by HNO3 on pristine and defective carbon materials. The interactions between the oxygen molecule (oxidant) and the nanostructured carbon catalysts are quantitatively calibrated. Moreover the different nucleophilic abilities of oxygen functional groups are carefully compared and the strongest nucleophilic sites are proposed. The active sites and detailed reaction pathway are revealed from several computational studies. Diketone/quinone groups are generally considered to be the active centers in ODH. A reaction pathway via radical formation is considered as the favorable path. Furthermore, single ketone and carbon sites are verified to be active in ODH from the analysis of aromaticity. Heteroatom doping effects in ODH are examined. Nitrogen doping is found to be very reactive towards oxygen molecule activation. Other dopants such as boron, phosphorous and sulfur also have positive effects on the reactivity of ODH. Extensive calculations suggest that the BEP relation is applicable for the doped nanostructured carbon catalysts. In the end, an outlook for the future direction of the computational study is supplied. PMID- 29322144 TI - Structure, gelation, and antioxidant properties of curcumin-doped casein micelle powder produced by spray-drying. AB - The encapsulation of curcumin in micellar caseins (MCs) and the production of powder were performed by spray-drying. Nearly 97% of the curcumin was retained and the yellow powder showed a typical high casein powder morphology. The hygroscopic properties were determined, slight differences reflected less available hydrophobic sites when curcumin was bound to casein, favoring interactions with water in curcumin-enriched MC powders. No difference was detected on the internal MC structure via SAXS. The antioxidant activity of doped curcumin powder presented 88% of active curcumin. For 60 days at 40 degrees C storage, the antioxidant activity of curcumin measured by ABTS and FRAP assays was preserved with a percentage of 82 +/- 2.0% and 84 +/- 1.1%, respectively. Curcumin doped powders presented similar features to classical casein powders (rehydration and gelling abilities). It was demonstrated that curcumin encapsulation in MCs in its powder form helped in protecting its antioxidant activity without influencing the techno-functional properties of MCs. This study allowed the incorporation of curcumin via the MC matrix as an active food ingredient available in a powder state usable as classical milk powder in several food formulations. PMID- 29322146 TI - KL double core hole pre-edge states of HCl. AB - The formation of double core hole pre-edge states of the form 1s-12p 1(1,3P)sigma*,nl for HCl, located on the binding energy scale as deep as 3 keV, has been investigated by means of a high resolution single channel electron spectroscopy technique recently developed for the hard X-ray region. A detailed spectroscopic assignment is performed based on ab initio quantum chemical calculations and by using a sophisticated fit model comprising regular Rydberg series. Quantum defects for the different Rydberg series are extracted and the energies for the associated double core hole ionization continua are extrapolated. Dynamical information such as the lifetime width of these double core-hole pre-edge states and the slope of the related dissociative potential energy curves are also obtained. In addition, 1s-12p-1V-1nllambdan'l'lambda' double shake-up transitions and double core hole states of the form 1s-12s 1(1,3S)sigma*,4s are observed. PMID- 29322147 TI - Self-assembly of 1,3,5-benzenetribenzoic acid on Ag and Cu at the liquid/solid interface. AB - Assembly of 1,3,5-benzenetribenzoic acid (H3BTB) from solution on Au substrates modified by underpotential deposited Ag and Cu layers was studied by near edge X ray absorption fine structure spectroscopy, X-ray photoelectron spectroscopy and scanning tunneling microscopy. Adsorption of H3BTB on Cu resulted in disordered layers with sporadic occurrence of ordered molecular aggregates. In contrast, highly ordered layers were obtained on Ag which exhibit a pronounced row structure and involve a monopodal bidentate adsorption geometry of the molecules through carboxylate coordinating bonding. The row structure arises from pi stacking of the molecules and is accompanied by hydrogen bonding interactions between the COOH groups of adjacent rows. As a consequence of the geometry of the H3BTB molecule and the dominance of intermolecular over molecule-substrate interactions, the SAM forms an open structure featuring a grooved surface and nanotunnels. PMID- 29322149 TI - Exploring physical and chemical properties in new multifunctional indium-, bismuth-, and zinc-based 1D and 2D coordination polymers. AB - Main group element coordination polymers (MGE-CPs) are important compounds for the development of multifunctional materials. However, there has been a shortage of studies regarding their structural, optical, catalytic, mechanical, and antibacterial properties. This work presents an exhaustive study of a set of crystalline MGE-CPs obtained from bismuth and indium metals and iminodiacetate, 1,2,4,5-benzenetetracarboxylate, and 2,2'-bipyridine as building blocks. An in depth topological analysis of the networks was carried out. Additionally, nanoindentation studies were performed on two representative low-dimensional compounds in order to find the relationships between their structural features and their intrinsic mechanical properties (hardness and elasticity). The solid state photoluminescence (SSPL) properties were also studied in terms of excitation, emission, lifetimes values, and CIE chromaticites. Moreover, the heterogeneous catalytic activities of the compounds were evaluated with the cyanosilylation reaction using a set of carbonylic substrates under solvent-free conditions. Finally, the inhibitory effect of the Bi-CPs on the growth of microorganisms such as Escherichia coli, Salmonella enterica serovar Typhimurium, and Pseudomonas aeruginosa, which are associated with relevant infectious diseases, is reported. PMID- 29322150 TI - Water oxidation by simple manganese salts in the presence of cerium(iv) ammonium nitrate: towards a complete picture. AB - For the first time, using scanning electron microscopy, transmission electron microscopy, X-ray absorption near edge structure and extended X-ray absorption fine structure X-ray diffraction, it is showed that MnCO3, MnWO4, Mn3(PO4)2.3H2O, MnS and Mn(VO3)2.xH2O under the water-oxidation conditions and in the presence of cerium(iv) ammonium nitrate, are converted to Mn oxide without a high-range order. A mechanism is proposed for such conversion and as Mn oxide is an efficient water-oxidizing catalyst, it is thus a candidate as a contributor to the observed catalytic activity. PMID- 29322151 TI - Hidden aryl-exchange processes in stable 16e RhIII [RhCp*Ar2] complexes, and their unexpected transmetalation mechanism. AB - Experiments mixing the stable 16e 5-coordinate complexes [RhCp*Ar2] (Cp* = C5Me5; Ar = C6F5, C6F3Cl2-3,5) uncover fast aryl transmetalations. Unexpectedly, as supported computationally, these exchanges are not spontaneous, but catalyzed by minute amounts of 18e (MU-OH)2[RhCp*Ar]2 as a source of 16e [RhCp*Ar(OH)]. The OH group is an amazingly efficient bridging partner to diminish the activation barrier of transmetalation. PMID- 29322152 TI - Computational exploration of Fe55@C240-catalyzed Fischer-Tropsch synthesis. AB - Single-shell carbon-encapsulated iron nanoparticles (SCEINs), Fe@C, have been shown to be charge-transfer complexes that can act as effective catalysts in the hydrogen and oxygen evolution reactions. A new generation of Fe-based catalysts for Fischer-Tropsch synthesis (FTS) which resembles SCEINs, e.g. single carbide nanoparticles encapsulated in carbon shells, has demonstrated enhanced activity and stability for FTS as compared to other carbon-supported Fe-based FTS. Thus the catalytic ability of SCEINs for the water splitting reactions and the Fe based FTS catalyst with SCEINs-like features stimulated our exploration of SCEINs catalyzed FTS. We performed ab initio DFT calculations using a realistic SCEINs model system Fe55@C240 to investigate for the first time the adsorption of the main reactants in FTS (CO and H/H2) and further to evaluate the catalytic ability of Fe55@C240 by reproducing the key steps of the well-known Fe-based FTS mechanisms (carbide, enol and CO insertion). Our calculations revealed: (i) a determinant role of Fe in enhancing CO adsorption (ii) strong cooperative effects with the adsorbates that stabilize the binding (iii) a less favourable two-sites reaction on Fe55@C240 due to preferential positions of the reactants farther to each other which prevent enol and carbide FTS mechanisms. We propose therefore a possible CO insertion path for hydrocarbon growth on Fe55@C240. PMID- 29322154 TI - Polyelectrolyte multilayers under compression: concurrent osmotic stress and colloidal probe atomic force microscopy. AB - Colloidal interactions have been characterised using both osmotic stress and surface forces. Here these methods are employed concurrently to measure the interaction forces of polyelectrolyte multilayers that when cross-linked form a dextran impermeable membrane. The force data, corrected for the thickness of the polyelectrolyte multilayer film, has been expressed as pressure versus separation enabling the interaction from osmotic stress measurements to be compared to the measured interaction from the colloid probe technique. The combined technique is valuable in evaluating the interaction forces associated with compression of polymer films at different rates and over a wide range of pressure and demonstrates features that are not revealed when just one technique is employed. The combination of the techniques allows both attractive forces and strongly repulsive forces to be measured and shows that the measured repulsion is greater in the force data than in the osmotic data. This is due to insufficient equilibration time in the AFM measurements, even at the slowest approach rates available, indicating that AFM force measurements between polyelectrolytes will always contain a dynamic component. That is we demonstrate that colloid probe measurements between polymer surfaces overestimate the equilibrium repulsive interaction due to the rate at which the measurement is performed. PMID- 29322155 TI - Can the Stockholm convention address the spectrum of chemicals currently under regulatory scrutiny? Advocating a more prominent role for modeling in POP screening assessment. AB - Frameworks for chemical regulation are based on the science at the time they were written. Today some regulations are being applied to a much broader spectrum of chemicals than we had knowledge of when the regulations were written. This entails a risk that the regulations are being used outside of their chemical application domain. This question is explored using the POP screening assessment in the Stockholm convention, which was developed 20 years ago. Using perfluorinated alkyl acids (PFAAs) as an example, it is shown that the assessment can lead to false negative conclusions. A second case study using octamethylcyclotetrasiloxane (D4) illustrates that there is also a risk of false positives. The risk for false negative classification of PFAAs is due to the inclusion of a screening criterion - bioaccumulation - that is not a requirement for adverse effects of chemicals in remote regions. For D4 the risk of false positive classification stems from the four screening criteria (persistence, bioaccumulation, long-range transport, and adverse effects) applying to different environmental media/compartments. The major lesson is that applying the POP screening procedure to the broad spectrum of chemicals in modern commerce will require that we rely less on the individual screening criteria and more on the comparison of estimated exposure and the thresholds for effects stipulated in Annex D, paragraph 2 of the convention. Models have an important role to play in this context and should become more strongly integrated into the POP screening process. PMID- 29322156 TI - Effect of lattice strain on the electro-catalytic activity of IrO2 for water splitting. AB - The lattice strain of IrO2 plays a critical role in determining its OER activity. The Ir-O bond length change in IrO6 coordination induces lattice strain. Increasing the annealing temperature results in a stretching strain along the c axis and a compressive strain on the a and b axes, leading to a larger c/a ratio. Enhancing the lattice strain decreases the c/a ratio, which is beneficial for improving OER activity. PMID- 29322157 TI - Two-way vapochromism of a luminescent platinum(ii) complex with phosphonic-acid functionalized bipyridine ligand. AB - A luminescent Pt(ii) complex [Pt(CN)2(H4dpbpy)] (1P; H4dpbpy = 2,2'-bipyridine 4,4'-diphosphonic acid) bearing a phosphonic-acid-functionalized bipyridine ligand was successfully synthesized and its unique two-way vapochromic behaviour investigated. X-ray structure analyses of both the anhydrous 1P and penta hydrated 1P.5H2O phases clearly reveal the activation of intermolecular PtPt interactions through the adsorption of water vapour. Emission spectroscopy reveals that the penta-hydrated 1P.5H2O complex exhibits an orange emission at 585 nm that shifts in two directions, to a blue-green emission at 469 nm by drying at 100 degrees C or to a red emission at 701 nm by drying under vacuum at room temperature. Thermogravimetric analyses and powder X-ray diffraction studies clearly reveal that anhydrous 1P, with negligible intermolecular PtPt interactions, is formed by drying at 100 degrees C whereas the monohydrate 1P.H2O phase, with effective PtPt interactions, is formed by drying under vacuum. PMID- 29322158 TI - Archaeological evidence for Pott's disease on historical populations: Tomb 05 at the Roman Circus maqbara as an example of social solidarity (Toledo, Spain). AB - ABSTRACT: World societies can often be characterized by their attitude towards elderly and illness. It is well known that most cultures were concerned about those who were not able to produce and take care of themselves. This brings to the development of social processes that involve such individuals within the community, resulting in groups who stick together, and at last, ensuring the survival of the group. The contextualization of many of those social processes might be studied through Physical Anthropology and Paleopathology. This paper presents tomb 05 (T-05) as a new case of probable tuberculosis in Toledo from the medieval maqbara of the Roman Circus that provides new paleoanthropological data to understand the treatment given to sick people in a sparsely studied context. PMID- 29322159 TI - Interpersonal violence among the Chalcolithic and Bronze Ages inhabitants living on the Central Plateau of Iran: A voice from Tepe Hissar. AB - ABSTRACT: The site of Tepe Hissar (Iran) experienced widespread cultural and economic changes during the Chalcolithic and Bronze Ages (5th to the 2nd millennium B.C.). The discovery of evidence of burning, including charred human remains, the destruction of buildings (Periods II and III), and the presence of several mass-burials with comingling of human skeletal remains consisting of ten or more individuals (Period III), suggests interpersonal violence during these periods. The original excavator of Tepe Hissar, Erich Schmidt, suggested that phenomena such as war, massacres, epidemics, or similar catastrophes, may have been responsible for the excavated archaeological evidence. This study tests the hypothesis that interpersonal violence was responsible for this evidence. Patterns of violence related head injury are explored among 129 adult men and women from the Chalcolithic and Bronze Ages. Sixty of the 129 (46.5%) crania examined presented with cranial trauma, with 25 (19.3%) having evidence of perimortem injury, and four (3.1%) and 31 (24%) individuals with signs of healing and healed head/facial trauma, respectively. Most of the injuries were located on the frontal or parietal bones of the cranium. Such findings may be interpreted as a result of the population experiencing a rise in social complexity and population increase that accompanied violence related to intra- or inter-group competition, often leading to lethal outcomes. These data support the hypothesis that the cultural and economic transitions and population changes that occurred at Tepe Hissar, and particularly in the Hissar II and III periods, were accompanied by tension and interpersonal violence. PMID- 29322160 TI - Underweight, overweight and obesity in children and adolescents from Minsk, Belarus in the period 2001-2008. AB - ABSTRACT: Objective: The aim of the study is to consider the prevalence of all deviations from the body weight standard (underweight, overweight and obesity) among 4-18 years old children, adolescents and youths of Minsk, Belarus examined in the period 2001-2008. Subjects and methods: The measurements of 2969 children, teenagers and young adults carried out in the period 2001-2008 were used. Children were classified as underweight, normal weight, overweight and obese using Body Mass Index (BMI) cutoff points proposed by IOTF. Results: Underweight was recorded more often in girls (10.7%) than in boys (7.5%), differences are significant (p < 0.05). More frequent occurrence of underweight was typical for girls and boys of older age periods (11-18 years) - 11.6-14.2% and 8.9-9.6%, respectively. Overweight was found in boys and girls with the same frequency (10.9 and 10.7%, respectively). Obesity was more often observed in boys than in girls (2.3 and 1.8%). An increase in the proportion of overweight children (especially intensive in boys) was observed before the pubertal growth spurt. Conclusion: Our analysis showed a fairly low percentage of deviations from the standard body weight. The considerable variability of the data on the prevalence of overweight and obesity in children of Belarus obtained by different authors can be related both to differences in levels of living in different regions of the country and fairly rapid changes in this area due to socio-economic changes in society. PMID- 29322161 TI - Lithium and Dementia-Reply. PMID- 29322162 TI - Lithium and Dementia. PMID- 29322163 TI - Pragmatic Psychiatric Epidemiology-If You Can't Count It, It Won't Count. PMID- 29322164 TI - Efficacy of Transdermal Estradiol and Micronized Progesterone in the Prevention of Depressive Symptoms in the Menopause Transition: A Randomized Clinical Trial. AB - Importance: The menopause transition and early postmenopausal period are associated with a 2- to 4-fold increased risk for clinically significant depressive symptoms. Although a few studies suggest that hormone therapy can effectively manage existing depression during this time, to our knowledge, there have been no studies testing whether hormone therapy can prevent the onset of perimenopausal and early postmenopausal depressive symptoms. Objective: To examine the efficacy of transdermal estradiol plus intermittent micronized progesterone (TE+IMP) in preventing depressive symptom onset among initially euthymic perimenopausal and early postmenopausal women. A secondary aim was to identify baseline characteristics predicting TE+IMP's beneficial mood effects. Design, Setting, and Participants: Double-blind, placebo-controlled randomized trial at the University of North Carolina at Chapel Hill from October 2010 to February 2016. Participants included euthymic perimenopausal and early postmenopausal women from the community, aged 45 to 60 years. Interventions: Transdermal estradiol (0.1 mg/d) or transdermal placebo for 12 months. Oral micronized progesterone (200 mg/d for 12 days) was also given every 3 months to women receiving active TE, and identical placebo pills were given to women receiving placebo. Main Outcome Measures: Scores on the Center for Epidemiological Studies-Depression Scale (CES-D), assessed at baseline and months 1, 2, 4, 6, 8, 10, and 12 after randomization, and the incidence of clinically significant depressive symptoms, defined as a CES-D score of at least 16. Results: Of 172 participants, 130 were white (76%), and 70 were African American (19%), with a mean household income of $50 000 to $79 999. The mean age was 51 years, and 43 developed clinically significant depressive symptoms. Women assigned to placebo were more likely than those assigned to TE+IMP to score at least 16 on the CES-D at least once during the intervention phase (32.3% vs 17.3%; odds ratio [OR], 2.5; 95% CI, 1.1-5.7; P = .03) and had a higher mean CES D score across the intervention period (P = .03). Baseline reproductive stage moderated the effect of treatment (beta, -1.97; SEM, 0.80; P for the interaction = .03) such that mood benefits of TE+IMP vs placebo were evident among women in the early menopause transition (beta, -4.2; SEM, 1.2; P < .001) but not the late menopause transition (beta, -0.9; SEM, 0.3; P = .23) or among postmenopausal women (beta, -0.3; SEM, 1.1; P = .92). Stressful life events in the 6 months preceding enrollment also moderated the effect of treatment on mean CES-D score such that the mood benefits of TE+IMP increased with a greater number of events (beta, 1.22; SEM, 0.40; P = .003). Baseline estradiol levels, baseline vasomotor symptoms, history of depression, and history of abuse did not moderate treatment effects. Conclusions: Twelve months of TE+IMP were more effective than placebo in preventing the development of clinically significant depressive symptoms among initially euthymic perimenopausal and early postmenopausal women. Trial Registration: clinicaltrials.gov Identifier: NCT01308814. PMID- 29322165 TI - Visual search in barn owls: Task difficulty and saccadic behavior. AB - How do we find what we are looking for? A target can be in plain view, but it may be detected only after extensive search. During a search we make directed attentional deployments like saccades to segment the scene until we detect the target. Depending on difficulty, the search may be fast with few attentional deployments or slow with many, shorter deployments. Here we study visual search in barn owls by tracking their overt attentional deployments-that is, their head movements-with a camera. We conducted a low-contrast feature search, a high contrast orientation conjunction search, and a low-contrast orientation conjunction search, each with set sizes varying from 16 to 64 items. The barn owls were able to learn all of these tasks and showed serial search behavior. In a subsequent step, we analyzed how search behavior of owls changes with search complexity. We compared the search mechanisms in these three serial searches with results from pop-out searches our group had reported earlier. Saccade amplitude shortened and fixation duration increased in difficult searches. Also, in conjunction search saccades were guided toward items with shared target features. These data suggest that during visual search, barn owls utilize mechanisms similar to those that humans use. PMID- 29322166 TI - Lithium and Dementia. PMID- 29322167 TI - Use of High-Risk Coronary Atherosclerotic Plaque Detection for Risk Stratification of Patients With Stable Chest Pain: A Secondary Analysis of the PROMISE Randomized Clinical Trial. AB - Importance: Coronary computed tomographic angiography (coronary CTA) can characterize coronary artery disease, including high-risk plaque. A noninvasive method of identifying high-risk plaque before major adverse cardiovascular events (MACE) could provide practice-changing optimizations in coronary artery disease care. Objective: To determine whether high-risk plaque detected by coronary CTA was associated with incident MACE independently of significant stenosis (SS) and cardiovascular risk factors. Design, Setting, and Participants: This prespecified nested observational cohort study was part of the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) trial. All stable, symptomatic outpatients in this trial who required noninvasive cardiovascular testing and received coronary CTA were included and followed up for a median of 25 months. Exposures: Core laboratory assessment of coronary CTA for SS and high-risk plaque (eg, positive remodeling, low computed tomographic attenuation, or napkin-ring sign). Main Outcomes and Measures: The primary end point was an adjudicated composite of MACE (defined as death, myocardial infarction, or unstable angina). Results: The study included 4415 patients, of whom 2296 (52%) were women, with a mean age of 60.5 years, a median atherosclerotic cardiovascular disease (ASCVD) risk score of 11, and a MACE rate of 3% (131 events). A total of 676 patients (15.3%) had high-risk plaques, and 276 (6.3%) had SS. The presence of high-risk plaque was associated with a higher MACE rate (6.4% vs 2.4%; hazard ratio, 2.73; 95% CI, 1.89-3.93). This association persisted after adjustment for ASCVD risk score and SS (adjusted hazard ratio [aHR], 1.72; 95% CI, 1.13-2.62). Adding high risk plaque to the ASCVD risk score and SS assessment led to a significant continuous net reclassification improvement (0.34; 95% CI, 0.02-0.51). Presence of high-risk plaque increased MACE risk among patients with nonobstructive coronary artery disease relative to patients without high-risk plaque (aHR, 4.31 vs 2.64; 95% CI, 2.25-8.26 vs 1.49-4.69). There were no significant differences in MACE in patients with SS and high-risk plaque as opposed to those with SS but not high-risk plaque (aHR, 8.68 vs. 9.31; 95% CI, 4.25-17.73 vs 4.21-20.61). High risk plaque was a stronger predictor of MACE in women (aHR, 2.41; 95% CI, 1.25 4.64) vs men (aHR, 1.40; 95% CI, 0.81-2.39) and younger patients (aHR, 2.33; 95% CI, 1.20-4.51) vs older ones (aHR, 1.36; 95% CI, 0.77-2.39). Conclusions and Relevance: High-risk plaque found by coronary CTA was associated with a future MACE in a large US population of outpatients with stable chest pain. High-risk plaque may be an additional risk stratification tool, especially in patients with nonobstructive coronary artery disease, younger patients, and women. The importance of findings is limited by low absolute MACE rates and low positive predictive value of high-risk plaque. Trial Registration: clinicaltrials.gov Indentifier: NCT01174550. PMID- 29322169 TI - Intertriginous Condyloma-like Plaques and Ulcers. PMID- 29322170 TI - Optimal Use of Preoperative Imaging in Primary Hyperparathyroidism. PMID- 29322168 TI - Patient Preferences for Surgery or Antibiotics for the Treatment of Acute Appendicitis. AB - Importance: Studies have compared surgical with nonsurgical therapy for acute uncomplicated appendicitis, but none of these studies have a patient-centered perspective. Objectives: To evaluate how patients might choose between surgical and nonsurgical therapy for acute uncomplicated appendicitis and to identify targets to make antibiotic treatment more appealing. Design, Setting, and Participants: This study comprised an online survey and an in-person sensitivity analysis survey. For the web survey, a convenience sample of 1728 respondents were asked to imagine that they or their child had acute uncomplicated appendicitis, provided information about laparoscopic and open appendectomy and antibiotic treatment alone, and asked which treatment they might choose. The web survey was open from April 17, 2016, through June 16, 2016, and was disseminated via email link, a poster with a Quick Response code, and social media. For the sensitivity analysis, 220 respondents were given the same scenario and options. Those who chose surgery were asked whether certain factors influenced their decision; each factor was incrementally improved during questioning about whether respondents would consider switching to antibiotics. These participants were recruited at public venues from June 3, 2016, to July 31, 2016. Web survey data were analyzed from June 17, 2016, to September 21, 2017. Sensitivity analysis data were analyzed from August 1, 2016, to September 21, 2017. Main Outcomes and Measures: Treatment preferences. Results: Among the 1728 web survey respondents, 1225 (70.9%) were female and 500 (28.9%) were male (3 [0.2%] either did not answer or responded as "gender fluid" within the comments section of the survey), and most self-reported being between 50 and 59 years of age (391 [22.6%]) and being non-Hispanic white (1563 [90.5%]). For themselves, 1482 respondents (85.8%) chose laparoscopic appendectomy, 84 (4.9%) chose open appendectomy, and 162 (9.4%) chose antibiotics alone. For their child, 1372 respondents (79.4%) chose laparoscopic appendectomy, 106 (6.1%) open appendectomy, and 250 (14.5%) antibiotics alone. Respondents were somewhat more likely to choose antibiotics for themselves if they had education beyond college (105 [12.6%]; P < .001), identified as other than non-Hispanic white (24 [14.9%]; P < .001), or did not know anyone who had previously been hospitalized (12 [15.8%]; P = .02), but they were less likely to choose antibiotics if they were surgeons (11 [5.4%]; P = .008). Of the 220 participants interviewed for the sensitivity analysis, 120 (54.5%) were female and 100 (45.5%) were male, and most self-reported being between 18 and 24 years of age (53 [24.1%]) and being non-Hispanic white (204 [92.7%]). Their responses suggested that improvements in the short- and long-term failure rate of antibiotic treatment-rather than reductions in the duration of hospitalization or antibiotic treatment-were more likely to increase the desirability of choosing antibiotics. Conclusions and Relevance: Most patients may choose surgical intervention over antibiotics alone in treatment of acute uncomplicated appendicitis, but a meaningful number may choose nonoperative management. Therefore, from a patient-centered perspective, this option should be discussed with patients, and future research could be directed at reducing the failure and recurrence rates of antibiotic treatment for appendicitis. PMID- 29322171 TI - Optimal Use of Preoperative Imaging in Primary Hyperparathyroidism-Reply. PMID- 29322172 TI - Palliative Care Assessment in the Surgical and Trauma Intensive Care Unit. PMID- 29322173 TI - Association of Surgical Practice Patterns and Clinical Outcomes With Surgeon Training in University- or Nonuniversity-Based Residency Program. AB - Importance: Important metrics of residency program success include the clinical outcomes achieved by trainees after transitioning to practice. Previous studies have shown significant differences in reported training experiences of general surgery residents at nonuniversity-based residency (NUBR) and university-based residency (UBR) programs. Objective: To examine the differences in practice patterns and clinical outcomes between surgeons trained in NUBR and those trained in UBR programs. Design, Setting, and Participants: This observational cohort study linked the claims data of patients who underwent general surgery procedures in New York, Florida, and Pennsylvania between January 1, 2012, and December 31, 2013, to demographic and training information of surgeons in the American Medical Association Physician Masterfile. Patients who underwent a qualifying procedure were grouped by surgeon. Practice pattern analysis was performed on 3638 surgeons and 1 237 621 patients, representing 214 residency programs. Clinical outcomes analysis was performed on 2301 surgeons and 312 584 patients. Data analysis was conducted from February 1, 2017, to July 31, 2017. Exposures: NUBR or UBR training status. Main Outcomes and Measures: Inpatient mortality, complications, and prolonged length of stay. Results: No significant differences were observed between the NUBR-trained surgeons and UBR-trained surgeons in age (mean, 53.3 years vs 53.7 years), sex (female, 18.2% vs 16.9%), or years of clinical experience (mean, 16.5 years vs 16.5 years). Overall, NUBR-trained surgeons compared with UBR-trained surgeons performed more procedures (median interquartile range [IQR], 328 [93-661] vs 164 [49-444]; P < .001) and performed a greater proportion of procedures in the outpatient setting (risk difference, 6.5; 95% CI, 6.4 to 6.7; P < .001). Before matching, the mean proportion of patients with documented inpatient mortality was lower for NUBR-trained surgeons than for UBR-trained surgeons (risk difference, -1.01; 95% CI, -1.41 to -0.61; P < .001). The mean proportion of patients with complications (risk difference, 3.17%; 95% CI, -4.21 to -2.13; P < .001) and prolonged length of stay (risk difference, -1.89%; 95% CI, -2.79 to -0.98; P < .001) was also lower for NUBR trained surgeons. After matching, no significant differences in patient mortality, complications, and prolonged length of stay were found between NUBR- and UBR-trained surgeons. Conclusions and Relevance: Surgeons trained in NUBR and UBR programs have distinct practice patterns. After controlling for patient, procedure, and hospital factors, no differences were observed in the inpatient outcomes between the 2 groups. PMID- 29322174 TI - Human Herpesvirus 8-Associated Inflammatory Cytokine Syndrome. PMID- 29322176 TI - Omitted Conflict of Interest Disclosures. PMID- 29322177 TI - High-Risk Coronary Atherosclerotic Plaque Assessment by Coronary Computed Tomography Angiography-Should We Use It? PMID- 29322175 TI - Association of Psoriasis With Comorbidity Development in Children With Psoriasis. AB - Importance: Children with psoriasis are at increased risk for comorbidities. Many children with psoriasis are also overweight or obese; it is unknown whether the increased risk of comorbidities in these children is independent of obesity. Objective: To determine the risk of elevated lipid levels (hyperlipidemia/hypertriglyceridemia), hypertension, metabolic syndrome, polycystic ovarian syndrome, diabetes, nonalcoholic liver disease, and elevated liver enzyme levels in children with and without psoriasis, after accounting for obesity. Design, Setting, and Participants: This was a retrospective cohort study of claims data from Optum Laboratories Data Warehouse (includes 150 million privately insured and Medicare enrollees). A cohort of 29 957 children with psoriasis (affected children) and an age-, sex-, and race-matched comparator cohort of 29 957 children without psoriasis were identified and divided into 4 groups: (1) nonobese, without psoriasis (reference cohort); (2) nonobese, with psoriasis; (3) obese, without psoriasis; and (4) obese, with psoriasis. Main Outcomes and Measures: Risk of developing comorbidities (Cox proportional hazards regression). Results: The overall mean (SD) age of those included in the cohort was 12.0 (4.4) years, and 16 034 (53.5%) were girls. At baseline, more affected children were obese (862 [2.9%] vs 463 [1.5%]; P < .001 for all comparisons). Children with psoriasis were significantly more likely to develop each of the comorbidities than those without psoriasis (P < .01). Obesity was a strong risk factor for development of each comorbidity, even in those without psoriasis (hazard ratios [HRs] ranging from 2.26 to 18.11). The risk of comorbidities was 40% to 75% higher among nonobese children with vs without psoriasis: elevated lipid levels (HR, 1.42; 95% CI, 1.25-1.62), hypertension (HR, 1.64; 95% CI, 1.40 1.93), diabetes (HR, 1.58; 95% CI, 1.27-1.95), metabolic syndrome (HR, 1.62; 95% CI, 1.13-2.33), polycystic ovarian syndrome (HR, 1.49; 95% CI, 1.18-1.88), nonalcoholic liver disease (HR, 1.76; 95% CI, 1.16-2.65), and elevated liver enzyme levels (HR, 1.46; 95% CI, 1.27-1.67). Except for hypertension (P = .03), no significant interaction occurred between psoriasis and obesity on the risk of comorbidities. Conclusions and Relevance: Children with psoriasis are at greater risk of developing obesity, hyperlipidemia, hypertension, diabetes, metabolic syndrome, polycystic ovarian syndrome, nonalcoholic liver disease, and elevated liver function enzyme levels than children without psoriasis. While psoriasis is a small independent risk factor for the development of these comorbidities, obesity is a much stronger contributor to comorbidity development in children with psoriasis. PMID- 29322179 TI - Nonuniversity-Based Surgeons Coming Up Anything but Short in Solutions to the Future Surgeon Shortage. PMID- 29322178 TI - Early Genetic Diagnosis of Neurofibromatosis Type 2 From Skin Plaque Plexiform Schwannomas in Childhood. AB - Importance: Neurofibromatosis type 2 (NF2) is a devastating genetic condition characterized by the development of multiple tumors of the nervous system. An early diagnosis of individuals with NF2 would facilitate treatment and reduction of disease impact because most severe effects of the disease do not usually develop before adolescence. Little attention has traditionally been paid to dermatological signs in NF2. However, skin plaques are commonly seen in patients with NF2, normally appearing either at birth or early childhood, providing an opportunity for early NF2 detection and testing. Objective: To determine the clinical utility of skin plaque identification and characterization in children for reaching an early diagnosis of patients with NF2 and to evaluate their molecular pathogenesis and their use in the genetic diagnostics of NF2. Design, Setting, and Participants: Diagnostic test study by the histological and genetic characterization of skin plaques from patients with NF2. Patients were 7 individuals with NF2 or clinical suspicion of NF2 treated at the Spanish Reference Center on Phakomatoses. Main Outcomes and Measures: Histological evaluation of all skin plaques was performed. Fresh skin plaques were cultured to obtain Schwann cells and the NF2 gene was genetically analyzed. For all 7 patients, NF2 clinical history was reviewed. Results: In all 7 patients (4 male and 3 female), all skin plaques analyzed were histologically characterized as plexiform schwannomas. Genetic analysis of primary Schwann cell cultures derived from them allowed the identification of a constitutional and a somatic NF2 mutation. Genetic testing allowed the early diagnosis of NF2 in a child only exhibiting the presence of skin plaques. Most of the patients with NF2 analyzed had an early presentation of skin plaques and a severe NF2 phenotype. Conclusions and Relevance: This work emphasizes the clinical utility of a careful dermatological inspection and the correct identification of skin plaques in children for an early diagnosis of NF2. We show for the first time that Schwann cells derived from skin plaque plexiform schwannomas bear the double inactivation of the NF2 gene and thus constitute an excellent source of tissue for genetic testing, especially in the context of mosaicism. PMID- 29322180 TI - Should Hormone Therapy Be Used to Prevent Depressive Symptoms During the Menopause Transition? PMID- 29322181 TI - Best Practice for Developmental Stuttering: Balancing Evidence and Expertise. AB - Purpose: Best practice for developmental stuttering remains a topic of debate. In the clinical forum following this introduction, four fluency experts balance the evidence and expertise to describe their approach to assessment and treatment. PMID- 29322182 TI - Evidence, Goals, and Outcomes in Stuttering Treatment: Applications With an Adolescent Who Stutters. AB - Purpose: The purpose of this clinical focus article is to summarize 1 possible process that a clinician might follow in designing and conducting a treatment program with John, a 14-year-old male individual who stutters. Method: The available research evidence, practitioner experience, and consideration of individual preferences are combined to address goals, treatment procedures, and outcomes for John. Conclusions: The stuttering treatment research literature includes multiple well-designed reviews and individual studies that have shown the effectiveness of prolonged speech (and smooth speech and related variations) for improving stuttered speech and for improving social, emotional, cognitive, and related variables in adolescents who stutter. Based on that evidence, and incorporating the additional elements of practitioner experience and client preferences, this clinical focus article suggests that John would be likely to benefit from a treatment program based on prolonged speech. The basic structure of 1 possible such program is also described, with an emphasis on the goals and outcomes that John could be expected to achieve. PMID- 29322184 TI - Comprehensive Stuttering Treatment for Adolescents: A Case Study. AB - Purpose: This article will focus on a hypothetical case study to highlight comprehensive assessment and treatment for adolescent children who stutter. Method: Assessment and treatment are laid out with a literature review utilizing the components of the International Classification of Functioning, Disability and Health model. Specific assessment and treatment strategies and approaches are discussed. Results: Using the International Classification of Functioning, Disability and Health model can help guide clinicians through the assessment and treatment process to ensure that all areas of stuttering are considered. Conclusion: Comprehensive assessment and treatment helps clinicians address all relevant elements of a stuttering disorder, rather than focusing exclusively on reducing speech disruptions. PMID- 29322186 TI - Stuttering in Preschool Children: Direct Versus Indirect Treatment. AB - Purpose: The purpose of this article is to discuss the controversial topic of stuttering in preschool children and how to evaluate the options for treatment, emphasizing the role of external research evidence. Method: A hypothetical but realistic case study of a 3-year-old boy who stutters is described. Two contrasting approaches to treatment are presented, the Lidcombe Program (LP) and the demands and capacities model (DCM). Studies published in peer-reviewed research journals that have examined the effectiveness of each approach are summarized and critiqued. Results: The review indicates that the LP is the preferred treatment approach for stuttering in preschool children and that it offers the best opportunity for rapid success. Conclusion: The LP should be carried out by knowledgeable, experienced, and flexible speech-language pathologists who are able to accommodate the individual needs and differences of every child and family. PMID- 29322187 TI - Incorrect Data Presentation and Figure Citations. PMID- 29322185 TI - Selecting Treatments and Monitoring Outcomes: The Circle of Evidence-Based Practice and Client-Centered Care in Treating a Preschool Child Who Stutters. AB - Purpose: The purpose of the present clinical forum is to compare how 2 clinicians might select among therapy options for a preschool-aged child who presents with stuttering close to onset. Method: I discuss approaches to full evaluation of the child's profile, advisement of evidence-based practice options open to the family, the need for monitoring of the child's response, and selection of other approaches, if the child appears nonresponsive to the 1st-line approach. Results: Although some researchers and clinicians appear to favor endorsement of a single recommended treatment for early stuttering, I do not find this approach helpful or consistent with newer mandates for patient-centered care. I am also most comfortable recommending RESTART demands and capacities model as the 1st treatment approach, with parent consent, because its mechanism of action appears transparent and well-documented. Conclusions: There are numerous well-supported intervention options for treating preschool children who stutter. No single therapy can possibly work for all clients. I discuss available options that I feel have sufficient evidence-based support for use with young children who stutter. I emphasize the need to consider more, not fewer, acceptable therapy options for children who do not respond positively to a selected treatment approach within a reasonable time frame. PMID- 29322188 TI - Management of Morgellons Disease With Low-Dose Trifluoperazine. PMID- 29322189 TI - Error in Figure Legend. PMID- 29322191 TI - The Himba and Red Ochre-Aesthetics, Symbolism, and Adaptation. PMID- 29322193 TI - To Nitpick. PMID- 29322192 TI - A Memorable Touch. PMID- 29322194 TI - Spanish Fly-Cantharidin's Alter Ego. PMID- 29322195 TI - Sporty Spots. PMID- 29322196 TI - Dermatology's Grandest Piano. PMID- 29322199 TI - The impact of socioeconomic status on the association between biomedical and psychosocial well-being and all-cause mortality in older Spanish adults. AB - PURPOSE: The aim of this paper was to analyze the effect of biomedical and psychosocial well-being, based on distinct successful aging models (SA), on time to mortality, and determine whether this effect was modified by socioeconomic status (SES) in a nationally representative sample of older Spanish adults. METHODS: Data were taken from a 3-year follow-up study with 2783 participants aged 50 or over. Vital status was ascertained using national registers or asking participants' relatives. Kaplan-Meier curves were used to estimate the time to death by SES, and levels of biomedical and psychosocial SA. Cox proportional hazard regression models were conducted to explore interactions between SES and SA models while adjusting for gender, age, and marital status. RESULTS: Lower levels of SES and biomedical and psychosocial SA were associated with low probability of survival. Only the interaction between SES and biomedical SA was significant. Biomedical SA impacted on mortality rates among individuals with low SES but not on those with medium or high SES, whereas psychosocial SA affected mortality regardless of SES. CONCLUSIONS: Promoting equal access to health care system and improved psychosocial well-being could be a protective factor against premature mortality in older Spanish adults with low SES. PMID- 29322200 TI - Prospective associations between recalled parental bonding and perinatal depression: a cohort study in urban and rural Turkey. AB - PURPOSE: Recalled experiences of parental bonding may be important in the aetiology of perinatal depression. We hypothesized that lower recalled parental bonding would be associated with perinatal depression. METHOD: In a cohort study of perinatal depression in Turkey, 677 women were recruited in their third trimester. Parental Bonding Inventory (PBI) scores at baseline were investigated as predictors of depression on the Edinburgh Postnatal Depression Scale (EPDS) at 4, 14 and 21 months after childbirth in mothers without depression at baseline. RESULTS: Poor parental bonding scores, apart from paternal control and overprotection, were independently associated with antenatal depression. Incident postnatal depression at 4 months was predicted by parental overprotection, at 14 months by parental care and overprotection, and at 21 months by paternal control and overprotection. CONCLUSIONS: Less satisfactory parenting recalled in the antenatal period was an independent predictor of postnatal depression; however, the different bonding subscales varied as predictors according to the timing of the depression assessment after childbirth. PMID- 29322201 TI - Characterization of corticospinal activation of finger motor neurons during precision and power grip in humans. AB - Direct and indirect corticospinal pathways to finger muscles may play a different role in control of the upper extremity. We used transcranial magnetic stimulation (TMS) and coherence analysis to characterize the corticospinal drive to the first dorsal interosseous (FDI) and abductor pollicis brevis (APB) when active during a precision and power grip task. In experiment 1, single motor units were recorded during precision grip and power grip in 20 adults (25.2 +/- 7.1 years). Post stimulus time histograms (PSTH) were obtained following TMS. In experiment 2, coherence and cross-correlation analysis of the FDI and APB surface EMG were used to investigate the temporal organization of corticospinal drive during precision grip and power grip in 15 adults (27.4 +/- 8.1 years). We found no significant differences in PSTH peak onset (26.6 +/- 1.9 vs. 26.7 +/- 2.0 ms, p = 0.75), maximal peak (27.4 +/- 1.9 vs. 27.4 +/- 1.9 ms, p = 1.0) or peak duration (2.3 +/ 1.1 vs. 2.3 +/- 1.0 ms, p = 0.75) for the 11 recovered motor units during precision grip and power grip. Also, no significant difference in coherence or the width of the synchronization peaks during precision grip (7.2 +/- 3.7 ms) and power grip (7.9 +/- 3.1 ms) could be observed (p = 0.59). The short duration of peaks elicited in the PSTH of single motor units following TMS and central synchronization peaks of voluntarily activated motor units during precision and power grip suggests that the direct corticospinal pathway (the corticomotoneuronal system) is equally involved in the control of both tasks. The data do not support that indirect pathways would make a larger contribution to power grip. PMID- 29322198 TI - Association of Cardiovascular Biomarkers With Incident Heart Failure With Preserved and Reduced Ejection Fraction. AB - Importance: Nearly half of all patients with heart failure have preserved ejection fraction (HFpEF) as opposed to reduced ejection fraction (HFrEF), yet associations of biomarkers with future heart failure subtype are incompletely understood. Objective: To evaluate the associations of 12 cardiovascular biomarkers with incident HFpEF vs HFrEF among adults from the general population. Design, Setting, and Participants: This study included 4 longitudinal community based cohorts: the Cardiovascular Health Study (1989-1990; 1992-1993 for supplemental African-American cohort), the Framingham Heart Study (1995-1998), the Multi-Ethnic Study of Atherosclerosis (2000-2002), and the Prevention of Renal and Vascular End-stage Disease study (1997-1998). Each cohort had prospective ascertainment of incident HFpEF and HFrEF. Data analysis was performed from June 25, 2015, to November 9, 2017. Exposures: The following biomarkers were examined: N-terminal pro B-type natriuretic peptide or brain natriuretic peptide, high-sensitivity troponin T or I, C-reactive protein (CRP), urinary albumin to creatinine ratio (UACR), renin to aldosterone ratio, D-dimer, fibrinogen, soluble suppressor of tumorigenicity, galectin-3, cystatin C, plasminogen activator inhibitor 1, and interleukin 6. Main Outcomes and Measures: Development of incident HFpEF and incident HFrEF. Results: Among the 22 756 participants in these 4 cohorts (12 087 women and 10 669 men; mean [SD] age, 60 [13] years) in the study, during a median follow-up of 12 years, 633 participants developed incident HFpEF, and 841 developed HFrEF. In models adjusted for clinical risk factors of heart failure, 2 biomarkers were significantly associated with incident HFpEF: UACR (hazard ratio [HR], 1.33; 95% CI, 1.20-1.48; P < .001) and natriuretic peptides (HR, 1.27; 95% CI, 1.16-1.40; P < .001), with suggestive associations for high-sensitivity troponin (HR, 1.11; 95% CI, 1.03 1.19; P = .008), plasminogen activator inhibitor 1 (HR, 1.22; 95% CI, 1.03-1.45; P = .02), and fibrinogen (HR, 1.12; 95% CI, 1.03-1.22; P = .01). By contrast, 6 biomarkers were associated with incident HFrEF: natriuretic peptides (HR, 1.54; 95% CI, 1.41-1.68; P < .001), UACR (HR, 1.21; 95% CI, 1.11-1.32; P < .001), high sensitivity troponin (HR, 1.37; 95% CI, 1.29-1.46; P < .001), cystatin C (HR, 1.19; 95% CI, 1.11-1.27; P < .001), D-dimer (HR, 1.22; 95% CI, 1.11-1.35; P < .001), and CRP (HR, 1.19; 95% CI, 1.11-1.28; P < .001). When directly compared, natriuretic peptides, high-sensitivity troponin, and CRP were more strongly associated with HFrEF compared with HFpEF. Conclusions and Relevance: Biomarkers of renal dysfunction, endothelial dysfunction, and inflammation were associated with incident HFrEF. By contrast, only natriuretic peptides and UACR were associated with HFpEF. These findings highlight the need for future studies focused on identifying novel biomarkers of the risk of HFpEF. PMID- 29322202 TI - High-flow nasal cannula oxygen therapy for acute hypoxemic respiratory failure in patients with chronic lung disease in terms of hospital outcomes. PMID- 29322203 TI - Program death inhibitors in classical Hodgkin's lymphoma: a comprehensive review. AB - Cancer cells are able to induce immune system tolerance through different mechanisms. Recent achievements in the understanding of tumor microenvironment, invasion, and metastasizing have contributed to accelerated drug developments and approvals. Hodgkin lymphoma (HL) cells are the minority in a lymphocyte-rich microenvironment of HL tissue. The program death-1 (PD-1)/PD-ligand-1 checkpoint is one of the known effective pathways in classical HL to escape the immune system cells. The approval of PD-1 inhibitors in different cancer types with exciting response rates is truly revolutionizing our treatment armamentarium against cancer in general and classical HL in specific. Although the disease is one of the most curable tumors, we still need better outcome with more gentle treatment, especially for relapsed and refractory (r/r) patients. In this article, we review the current literature on immune checkpoint inhibitors and currently ongoing studies with nivolumab and pembrolizumab in r/r classical HL. PMID- 29322206 TI - [Perioperative handling of anticoagulation]. AB - A growing number of patients in Germany receive a long-term prophylactic anticoagulation with phenprocoumone or one of the novel direct oral anticoagulants (NOAC), such as dabigatran, rivaroxaban or apixaban. The most common indication for an oral anticoagulant therapy is atrial fibrillation (approximately 75%) where the anticoagulant therapy can reduce the risk for an embolic event, particularly stroke by 60%. Operations carried out during such a therapy can result in major bleeding complications. On the other hand, suspending anticoagulant therapy can lead to an increased risk of thromboembolisms. Thus, the preoperative assessment should address the bleeding risk of the planned operation, the individual risk of thromboembolism, as well as other factors, such as patient age and renal function. If the individual assessment shows a substantial risk of perioperative bleeding when anticoagulant treatment is continued and a substantial risk of thromboembolism if the treatment is suspended, then a perioperative bridging, for example with low molecular weight heparin, is necessary. Perioperative bridging also leads to an increased risk of perioperative bleeding. Thus, undifferentiated bridging for all patients with atrial fibrillation with anticoagulant treatment is not recommended. Instead, the indications for a perioperative bridging should be decided according to individual risk profiles. PMID- 29322207 TI - [Global Health Care]. AB - Global health data are changing rapidly and they show large regional differences. The incidence and mortality of infectious diseases can be reduced by successes in medical research, national health plans and large financial expenditure. In contrast, illnesses that are caused by unhealthy and changing environmental and living conditions are on the rise. The Global Health Care concept is a cross sectoral master plan taking into account that worldwide health cannot be established by healthcare workers alone. It was designed to have a lasting impact on the cause of disease through global health programs, of which improved medical services, including essential surgical treatment need to play a key role. PMID- 29322205 TI - The role of albumin-bilirubin grade and inflammation-based index in patients with hepatocellular carcinoma treated with stereotactic body radiotherapy. AB - PURPOSE: We evaluated the prognostic accuracy of the albumin-bilirubin (ALBI) grade and the inflammation-based index (IBI) in estimating overall survival (OS) and toxicity in patients with hepatocellular carcinoma (HCC) treated with stereotactic body radiotherapy (SBRT). MATERIALS AND METHODS: Forty patients with 47 HCC lesions with a Barcelona Clinic Liver Cancer (BCLC) classification stage B or C were treated with SBRT in 3-12 fractions. The ALBI grade and the IBI were calculated at different time points (baseline, during, at the end of treatment and at follow-up) and compared with the Child-Pugh (CP) score as well as other patient- and treatment-related parameters, concerning OS and toxicity. RESULTS: The median follow-up was 14.3 months for patients alive. The median OS from SBRT was 10 (95% confidence interval 8.3-11.6) months. The local control at 1 year was 79%. A lower IBI during treatment was associated with better OS (p = 0.034) but not CP and ALBI. Higher C-reactive protein levels as well as higher alpha fetoprotein concentrations correlated with worse survival (p = 0.001). Both higher ALBI (p = 0.02) and CTP (p = 0.001) at baseline correlated with a higher incidence of acute and late toxicities (CTC >=2). Neither the mean radiation dose to the liver nor the dose to 700 cc of the liver correlated with the occurrence of toxicities. CONCLUSIONS: In this analysis, a higher ALBI grade as well as a higher CP were predictors of higher incidence of toxicity, whereas a lower IBI during treatment correlated with a better OS. These results should be further evaluated in prospective studies. PMID- 29322208 TI - The association of the medial joint vacuum phenomenon with ulnar collateral ligament injury in symptomatic elbows of younger athletes. AB - OBJECTIVE: To determine the prevalence of intra-articular gas (IAG) on elbow radiography and evaluate variables, including IAG, as predictors of UCL injury. MATERIALS AND METHODS: This IRB-approved retrospective study consisted of 241 consecutive elbow radiographic studies containing AP radiographs with valgus stress of both symptomatic and asymptomatic sides in 234 patients. The IAG, medial joint space (MJS), and MJS difference between the symptomatic and asymptomatic elbow (MJSD) were evaluated by two readers, as well as patient age, gender, sport played, and handedness. Primary outcomes included IAG on valgus stress radiographs and UCL injury, which was determined by intraoperative findings as the reference standard or MRI if surgery was not performed. Univariate analysis with Student's t, Fisher's exact, and chi-square tests were performed. RESULTS: IAG only manifested with valgus stress and was demonstrated in 30/482 (6.2%) valgus stress radiographs in 27/234 (11.5%) patients. Overall, 21/241 (8.7%) valgus stress radiographs of the symptomatic elbow demonstrated IAG in 21 patients. A total of 128/241 (53.1%) elbow studies had evidence of UCL injury. MJS IAG (p = 0.0147) and increased MJSD (p = 0.0088) were significantly associated with UCL injury. Patient gender, age, handedness, laterality, sport played, and absolute MJS were not associated with UCL injury. MJS IAG with valgus stress demonstrates a sensitivity of 11.7% and specificity of 98.3% in detecting UCL injury for the symptomatic elbow. CONCLUSIONS: MJS IAG infrequently manifests on valgus stress radiographs, but is specific for UCL injury in the symptomatic elbow of overhead throwing athletes. MJS IAG and increased MJSD are significantly associated with UCL injury. PMID- 29322209 TI - Infiltrating angiolipoma of the foot: magnetic resonance imaging features and review of the literature. AB - Angiolipoma is a benign soft tissue tumor with two subtypes: non-infiltrating and infiltrating. Although histologically benign, infiltrating angiolipoma can invade surrounding structures. The foot is a very rare location for angiolipoma, with only four cases reported in the English literature, including one infiltrating type. Here, we report a very rare case of infiltrating angiolipoma of the foot with magnetic resonance imaging (MRI) and ultrasonography (US) findings. A 7-year old boy presented with a slowly growing foot mass. MRI showed an unencapsulated mass involving the third web space extending to the foot dorsum and sole. The mass was isointense to subcutaneous fat and was mixed with internal T1 low-signal intensity enhancing areas. On US, we observed a heterogeneously hypoechoic mass with internal vascularity. Imaging and clinical features of angiolipoma and the radiologic differential diagnoses of a fat-containing mass in the pediatric foot are reviewed here. When there is an ill-defined foot mass with a fat component and variable enhancing portions in a child, infiltrating angiolipoma should be included in the differential diagnosis along with other fat-containing tumors. PMID- 29322204 TI - Evolving notions on immune response in colorectal cancer and their implications for biomarker development. AB - INTRODUCTION: Colorectal cancer (CRC) still represents the third most commonly diagnosed type of cancer in men and women worldwide. CRC is acknowledged as a heterogeneous disease that develops through a multi-step sequence of events driven by clonal selections; this observation is sustained by the fact that histologically similar tumors may have completely different outcomes, including a varied response to therapy. METHODS: In "early" and "intermediate" stage of CRC (stages II and III, respectively) there is a compelling need for new biomarkers fit to assess the metastatic potential of their disease, selecting patients with aggressive disease that might benefit from adjuvant and targeted therapies. Therefore, we review the actual notions on immune response in colorectal cancer and their implications for biomarker development. RESULTS: The recognition of the key role of immune cells in human cancer progression has recently drawn attention on the tumor immune microenvironment, as a source of new indicators of tumor outcome and response to therapy. Thus, beside consolidated histopathological biomarkers, immune endpoints are now emerging as potential biomarkers. CONCLUSIONS: The introduction of immune signatures and cellular and molecular components of the immune system as biomarkers is particularly important considering the increasing use of immune-based cancer therapies as therapeutic strategies for cancer patients. PMID- 29322210 TI - Correction to: Dosimetry in clinical radionuclide therapy: the devil is in the detail. AB - The above article which was published in Volume 44/ Issue 12 has incorrect page numbers. Instead of 1-3, it should have been 2137-2139. PMID- 29322211 TI - "Within ring"-based sacroiliac rod fixation may overcome the weakness of spinopelvic fixation for unstable pelvic ring injuries: technical notes and clinical outcomes. AB - PURPOSE: Spinopelvic fixation and triangular osteosynthesis give firm internal fixation for unstable pelvic ring injuries (UPRI), but with sacrifice of mobility of the lumbar spine. Here, we describe the procedure and outcomes of a new approach, which we refer to as "within ring"-based sacroiliac rod fixation (SIRF). METHODS: The patient was placed in a prone position and longitudinal skin incisions were made at the medial margins of the bilateral posterior superior iliac spines (PSIS). After reduction of fracture, a pedicle screw was inserted into the first sacral vertebra on the injured side and iliac screws inserted through the bilateral PSIS were bridged using rods. RESULTS: SIRF was performed in 15 patients. The AO/OTA classification was 61-B2.3 in 1, C1.3 in 4, C2.3 in 7, C3.3 in 1, and H-type spinopelvic dissociation in two cases. The mean operative time was 179 (110-298) minutes, mean blood loss was 533 (100-2700) cc. One patient died during hospitalization and three patients stopped outpatient treatment. The other 11 patients achieved bone union without major loss of reduction in a mean post-operative follow-up period of 23.8 (4-50) months. The mean Majeed score at final follow-up was 86.7 (73-96) out of 96, excluding scoring sexual intercourse. CONCLUSIONS: "Within ring"-based SIRF not including the lumbar spine in the fixation range is a simple, safe, and low-invasive internal fixation method for UPRI. PMID- 29322213 TI - Translation and validation of the International Consultation on Incontinence Questionnaire Vaginal Symptoms (ICIQ-VS): the Danish version. AB - INTRODUCTION: In the clinical evaluation of women with pelvic organ prolapse (POP), it is important to evaluate both objective and subjective presentations. The objective evaluation is done by gynecological examination, but the subjective presentation is more complex. The International Consultation on Incontinence Questionnaire-Vaginal Symptoms (ICIQ-VS) is an important tool for subjective evaluation, and a Danish version was developed. MATERIALS AND METHODS: The English version was translated into Danish in accordance with guidelines. Eight women underwent a semistructured interview showing no misunderstandings. Women with and without prolapse completed the questionnaire and underwent a Pelvic Organ Prolapse Quantification (POP-Q) examination. Three weeks later a retest was done. Women undergoing prolapse surgery completed the questionnaire 3 months postoperatively. RESULTS: Ninety-four women with and 98 without prolapse were included; 52 underwent surgery. Retest response rate was 88-95%. Mean time between test and retest was 24.5 and 92.2 days, respectively. Missing data ranged between 0 and 1%. Test-retest reliability was good to excellent (ICC 0.61-0.88) and internal consistency was acceptable (Cronbach's alpha 0.79-0.84). The questionnaire was excellent when distinguishing between women with and without prolapse (p < 0.001). Criterion validity (correlation between POP-Q stage and the questionnaire) was perfect (p < 0.001). Sensitivity to change was excellent for vaginal symptom score and quality of life (p < 0.001) but not for sexual matters (p = 0.059). CONCLUSIONS: The Danish version of ICIQ-VS was successfully translated and can be a valuable tool for prolapse research and daily evaluation of patients. PMID- 29322212 TI - Meta-analysis on Materials and Techniques for Laparotomy Closure: The MATCH Review. AB - BACKGROUND: The aim of this systematic review and meta-analysis was to evaluate closure materials and suture techniques for emergency and elective laparotomies. The primary outcome was incisional hernia after 12 months, and the secondary outcomes were burst abdomen and surgical site infection. METHODS: A systematic literature search was conducted until September 2017. The quality of the RCTs was evaluated by at least 3 assessors using critical appraisal checklists. Meta analyses were performed. RESULTS: A total of 23 RCTs were included in the meta analysis. There was no evidence from RCTs using the same suture technique in both study arms that any suture material (fast-absorbable/slowly absorbable/non absorbable) is superior in reducing incisional hernias. There is no evidence that continuous suturing is superior in reducing incisional hernias compared to interrupted suturing. When using a slowly absorbable suture for continuous suturing in elective midline closure, the small bites technique results in significantly less incisional hernias than a large bites technique (OR 0.41; 95% CI 0.19, 0.86). CONCLUSIONS: There is no high-quality evidence available concerning the best suture material or technique to reduce incisional hernia rate when closing a laparotomy. When using a slowly absorbable suture and a continuous suturing technique with small tissue bites, the incisional hernia rate is significantly reduced compared with a large bites technique. PMID- 29322215 TI - [Assessment of kidney function : Creatinine is not the whole story]. AB - Chronic renal insufficiency has a high prevalence and leads not only to a severe impairment in the quality of life but also to a higher mortality, mainly due to cardiovascular complications; however, in the early stages where there is still a chance for a therapeutic intervention, it is often underestimated because depending on endogenous factors (e.g. age and muscle mass), serum creatinine could falsely remain in the normal range while kidney function is already impaired. An exact measurement of the glomerular filtration rate (GFR) using radionuclide techniques is cumbersome and usually confined to rare cases, such as in clinical studies. Creatinine clearance measurement by 24-h urine collection requires good patient instructions and is error prone, thus it is limited to special circumstances. In routine clinical practice, estimation of the GFR by calculation algorithms provides the best approach. In recent years the chronic kidney disease epidemiology collaboration (CKD-EPI) formula has become established as the most accurate method. This should be used for screening and continuous surveillance. In addition, urinalysis including dipstick tests and urinary microscopy represent non-invasive, technically simple and economic screening tools. Due to its semiquantitative nature, the results of urinalysis should only to be interpreted after comprehensive consideration of the diagnostic and technical limitations, which are reviewed in this article. PMID- 29322214 TI - Protective role of Nrf2 against mechanical-stretch-induced apoptosis in mouse fibroblasts: a potential therapeutic target of mechanical-trauma-induced stress urinary incontinence. AB - INTRODUCTION AND HYPOTHESIS: We investigated the protective effect and underlying molecular mechanism of nuclear factor-E2-related factor 2 (Nrf2) against mechanical-stretch-induced apoptosis in mouse fibroblasts. METHODS: Normal cells, Nrf2 silencing cells, and Nrf2 overexpressing cells were respectively divided into two groups-nonintervention and cyclic mechanical strain (CMS)-subjected to CMS of 5333 MU (1.0 Hz for 4 h), six groups in total (control, CMS, shNfe212, shNfe212 + CMS, LV-shNfe212, and LV-shNfe212 + CMS). After treatment, cell apoptosis; cell-cycle distribution; expressions of Nrf2, Bax, Bcl-2, Cyt-C, caspase-3, caspase-9, cleaved-caspase-3, and cleaved-caspase-9; mitochondrial membrane potential (DeltaPsim); reactive oxygen species (ROS); and malondialdehyde (MDA) levels were measured. Thirty virgin female C57BL/6 mice were divided into two groups: control (without intervention) and vaginal distension (VD) groups, which underwent VD for 1 h with an 8-mm dilator (0.3 ml saline). Leak-point pressure (LPP) was tested on day 7 after VD; Nrf2 expression, apoptosis, and MDA levels were then measured in urethra and anterior vaginal wall. RESULTS: Mechanical stretch decreased Nrf2 messenger RNA (mRNA) and protein expressions. Overexpression of Nrf2 alleviated mechanical-stretch-induced cell apoptosis; S-phase arrest of cell cycle; up-regulation of Bax, cytochrome C (Cyt C), ROS, MDA, ratio of cleaved-caspase-3/caspase-3 and cleaved-caspase-9/caspase 9; and exacerbated the decrease of Bcl2 and DeltaPsim in L929 cells. On the contrary, silencing of Nrf2 showed opposite effects. Besides, VD reduced LPP levels and Nrf2 expression and increased cell apoptosis and MDA generation in the urethra and anterior vaginal wall. CONCLUSIONS: Nrf2 exhibits a protective role against mechanical-stretch -induced apoptosis on mouse fibroblasts, which might indicate a potential therapeutic target of mechanical-trauma-induced stress urinary incontinence (SUI). PMID- 29322216 TI - [Therapy changes after stroke in patients with open foramen ovale? : Patent Foramen Ovale Closure or Anticoagulants versus Antiplatelet Therapy to Prevent Stroke Recurrence Trial (CLOSE), Randomized Evaluation of Recurrent Stroke Comparing PFO Closure to Established Current Standard of Care Treatment (RESPECT), and Carotid Revascularization Endarterectomy versus Stenting Trial (REDUCE)]. PMID- 29322217 TI - [Functional diagnostics in pneumology]. AB - Alongside imaging techniques, pulmonary function testing helps in the diagnosis of underlying disorders such as asthma and chronic obstructive pulmonary disease (COPD) or fibrosing lung disease. However, disease severity grading is also important, as well as disease follow-up under therapy. The value of spirometry as a first-line diagnostic test, whole-body plethysmography in advanced diagnostics, the measurement of transfer factor, as well as blood gas analysis are outlined. The importance of spiroergometry, echocardiography, and right-heart catheterization, particularly in the functional assessment of pulmonary vascular disorders, is described. Tests in respiratory sleep medicine, such as polysomnography, as well as tests for diagnosing chronic respiratory failure, are part of the respiratory physician's diagnostic armamentarium. PMID- 29322218 TI - [Paraneoplasms of the skin]. AB - The cutaneous manifestations of malignancies include nonmalignant skin disorders that occur in association with malignancies (facultative paraneoplastic dermatoses) and skin disorders that are always associated with hematologic diseases or solid tumors (obligate paraneoplastic dermatoses). Paraneoplastic increase of growth factors or immunological reactions lead to a variety of inflammatory, hyperkeratotic or proliferative skin reactions. When paraneoplastic dermatoses develop before cancer is diagnosed, recognition of these skin diseases can accelerate both the diagnosis and treatment. The presence of unexplained cutaneous findings should lead to a multidisciplinary evaluation of the patient. This manuscript summarizes the cutaneous manifestations associated with hematologic disorders and solid tumors, their localization and treatment options. PMID- 29322220 TI - Diabetes and pregnancy: national trends over a 15 year period. AB - AIMS/HYPOTHESIS: We aimed to examine time trends in national perinatal outcomes in pregnancies complicated by pre-existing type 1 or type 2 diabetes. METHODS: We analysed episode-level data on all obstetric inpatient delivery events (live or stillbirth) between 1 April 1998 and 31 March 2013 (n = 813,921) using the Scottish Morbidity Record (SMR02). Pregnancies to mothers with type 1 (n = 3229) and type 2 (n = 1452) diabetes were identified from the national diabetes database (Scottish Care Information-Diabetes), and perinatal outcomes were compared among women with type 1 diabetes, type 2 diabetes and those without diabetes. RESULTS: The number of pregnancies complicated by diabetes increased significantly, by 44% in type 1 diabetes and 90% in type 2 diabetes, across the 15 years examined, to rates of 1 in 210 and 1 in 504 deliveries, respectively. Compared with women without diabetes, delivery occurred 2.6 weeks earlier (type 1 diabetes 36.7 +/- 2.3 weeks) and 2 weeks earlier (type 2 diabetes 37.3 +/- 2.4 weeks), respectively, showing significant reductions for both type 1 (from 36.7 weeks to 36.4 weeks, p = 0.03) and type 2 (from 38.0 weeks to 37.2 weeks, p < 0.001) diabetes across the time period. The proportions of preterm delivery were markedly increased in women with diabetes (35.3% type 1 diabetes, 21.8% type 2 diabetes, 6.1% without diabetes; p < 0.0001), and these proportions increased with time for both groups (p < 0.005). Proportions of elective Caesarean sections (29.4% type 1 diabetes, 30.5% type 2 diabetes, 9.6% without diabetes) and emergency Caesarean sections (38.3% type 1 diabetes, 29.1% type 2 diabetes, 14.6% without diabetes) were greatly increased in women with diabetes and increased over time except for stable rates of emergency Caesarean section in type 1 diabetes. Gestational age-, sex- and parity-adjusted z score for birthweight (1.33 +/- 1.34; p < 0.001) were higher in type 1 diabetes and increased over time from 1.22 to 1.47 (p < 0.001). Birthweight was also increased in type 2 diabetes (0.94 +/- 1.34; p < 0.001) but did not alter with time. There were 65 perinatal deaths in offspring of mothers with type 1 diabetes and 39 to mothers with type 2 diabetes, representing perinatal mortality rates of 20.1 (95% CI 14.7, 24.3) and 26.9 (16.7, 32.9) per 1000 births, respectively, and rates 3.1 and 4.2 times, respectively, those observed in the non-diabetic population (p < 0.001). Stillbirth rates in type 1 and type 2 diabetes were 4.0-fold and 5.1-fold that in the non-diabetic population (p < 0.001). Perinatal mortality and stillbirth rates showed no significant fall over time despite small falls in the rates for the non diabetic population. CONCLUSIONS/INTERPRETATION: Women with diabetes are receiving increased intervention in pregnancy (earlier delivery, increased Caesarean section rates), but despite this, higher birthweights are being recorded. Improvements in rates of stillbirth seen in the general population are not being reflected in changes in stillbirth or perinatal mortality in our population with diabetes. PMID- 29322219 TI - SIRT6-mediated transcriptional suppression of Txnip is critical for pancreatic beta cell function and survival in mice. AB - AIMS/HYPOTHESIS: Better understanding of how genetic and epigenetic components control beta cell differentiation and function is key to the discovery of novel therapeutic approaches to prevent beta cell dysfunction and failure in the progression of type 2 diabetes. Our goal was to elucidate the role of histone deacetylase sirtuin 6 (SIRT6) in beta cell development and homeostasis. METHODS: Sirt6 endocrine progenitor cell conditional knockout and beta cell-specific knockout mice were generated using the Cre-loxP system. Mice were assayed for islet morphology, glucose tolerance, glucose-stimulated insulin secretion and susceptibility to streptozotocin. Transcriptional regulatory functions of SIRT6 in primary islets were evaluated by RNA-Seq analysis. Reverse transcription quantitative (RT-q)PCR and immunoblot were used to verify and investigate the gene expression changes. Chromatin occupancies of SIRT6, H3K9Ac, H3K56Ac and active RNA polymerase II were evaluated by chromatin immunoprecipitation. RESULTS: Deletion of Sirt6 in pancreatic endocrine progenitor cells did not affect endocrine morphology, beta cell mass or insulin production but did result in glucose intolerance and defective glucose-stimulated insulin secretion in mice. Conditional deletion of Sirt6 in adult beta cells reproduced the insulin secretion defect. Loss of Sirt6 resulted in aberrant upregulation of thioredoxin interacting protein (TXNIP) in beta cells. SIRT6 deficiency led to increased acetylation of histone H3 lysine residue at 9 (H3K9Ac), acetylation of histone H3 lysine residue at 56 (H3K56Ac) and active RNA polymerase II at the promoter region of Txnip. SIRT6-deficient beta cells exhibited a time-dependent increase in H3K9Ac, H3K56Ac and TXNIP levels. Finally, beta cell-specific SIRT6-deficient mice showed increased sensitivity to streptozotocin. CONCLUSIONS/INTERPRETATION: Our results reveal that SIRT6 suppresses Txnip expression in beta cells via deacetylation of histone H3 and plays a critical role in maintaining beta cell function and viability. DATA AVAILABILITY: Sequence data have been deposited in the National Institutes of Health (NIH) Gene Expression Omnibus (GEO) with the accession code GSE104161. PMID- 29322221 TI - Feasibility of opportunistic osteoporosis screening in routine contrast-enhanced multi detector computed tomography (MDCT) using texture analysis. AB - : This study investigated the feasibility of opportunistic osteoporosis screening in routine contrast-enhanced MDCT exams using texture analysis. The results showed an acceptable reproducibility of texture features, and these features could discriminate healthy/osteoporotic fracture cohort with an accuracy of 83%. INTRODUCTION: This aim of this study is to investigate the feasibility of opportunistic osteoporosis screening in routine contrast-enhanced MDCT exams using texture analysis. METHODS: We performed texture analysis at the spine in routine MDCT exams and investigated the effect of intravenous contrast medium (IVCM) (n = 7), slice thickness (n = 7), the long-term reproducibility (n = 9), and the ability to differentiate healthy/osteoporotic fracture cohort (n = 9 age and gender matched pairs). Eight texture features were extracted using gray level co-occurrence matrix (GLCM). The independent sample t test was used to rank the features of healthy/fracture cohort and classification was performed using support vector machine (SVM). RESULTS: The results revealed significant correlations between texture parameters derived from MDCT scans with and without IVCM (r up to 0.91) slice thickness of 1 mm versus 2 and 3 mm (r up to 0.96) and scan-rescan (r up to 0.59). The performance of the SVM classifier was evaluated using 10-fold cross-validation and revealed an average classification accuracy of 83%. CONCLUSIONS: Opportunistic osteoporosis screening at the spine using specific texture parameters (energy, entropy, and homogeneity) and SVM can be performed in routine contrast-enhanced MDCT exams. PMID- 29322222 TI - Urinary Pentosidine levels negatively associates with trabecular bone scores in patients with type 2 diabetes mellitus. AB - : Pentosidine levels were higher in diabetic patients with vertebral fractures. Trabecular bone scores were negatively associated with pentosidine levels in diabetic patients only. Our results provide further evidence that AGEs are associated with the pathogenesis of bone fragility in patients with T2DM. INTRODUCTION: Type 2 diabetes mellitus (T2DM) is associated with fracture risk. Pentosidine, an advanced glycation end product (AGE), is associated with prevalent vertebral fractures (VFs) in patients with T2DM. Trabecular bone score (TBS) has been proposed as an index of bone microarchitecture associated with bone quality. This study evaluated the associations of urine pentosidine and TBS in T2DM and non-T2DM groups. METHODS: A total of 112 T2DM patients and 62 non T2DM subjects were enrolled. TBS was calculated using TBS insight(r) software (version 2.1). Pentosidine levels were measured using high-performance liquid chromatography method. We compared the BMD, TBS, and pentosidine levels between those with and without VFs with or without adjustment for age and sex. The association with TBS, lumbar spine BMD, and pentosidine levels were also evaluated in both T2DM and non-T2DM groups. RESULTS: Pentosidine levels were significantly higher in T2DM patients with VFs. TBSs were significantly lower in patients with T2DM and VFs. In non-diabetic patients, there were no significant differences in TBS and pentosidine levels for those with and without VFs after adjustment for age and sex. Pentosidine levels were negatively associated with TBS only in patients with T2DM. In multivariate stepwise regression analysis, pentosidine levels were significantly associated with TBS in patients with T2DM. CONCLUSIONS: TBS and pentosidine could be used as a method to assess bone quality to identify T2DM patients at risk of VFs. Our results also provide further evidence that AGEs are associated with the pathogenesis of bone fragility in patients with T2DM. PMID- 29322224 TI - [Chronic spontaneous urticaria : A disease of civilization?] PMID- 29322223 TI - Is the timed loaded standing test a valid measure of back muscle endurance in people with vertebral osteoporosis? AB - : Timed loaded standing (TLS) is a suggested measure of back muscle endurance for people with vertebral osteoporosis. Surface electromyography revealed back muscles work harder and fatigue during TLS. The test end-point and total time were associated with back fatigue. The findings help demonstrate the concurrent validity of the TLS test. INTRODUCTION: The TLS test is suggested as a measure of back muscle endurance for patients with vertebral osteoporosis. However, to date, no study has demonstrated that TLS does measure back extensor or erector spinae (ES) muscle endurance. We used surface electromyography (sEMG) to investigate the performance of the thoracic ES muscles during TLS. METHODS: Thirty-six people with vertebral osteoporosis with a mean age of 71.6 (range 45-86) years participated. sEMG recordings were made of the ES at T3 and T12 bilaterally during quiet standing (QS) and TLS. The relative (%) change in sEMG amplitude between conditions was compared. Fatigue was evaluated by analysing the change in median frequency (MF) of the sEMG signal during TLS, and the correlation between maximal TLS time and rate of MF decline was examined. RESULTS: Activity in the ES increased significantly during TLS at all electrode locations. During TLS, the MF declined at a mean rate of -24.2% per minute (95% C.I. -26.5 to -21.9%). The MF slope and test time were strongly correlated (r2 = 0.71), and at test end, the final MF dropped to an average 89% (95% C.I. 85 to 93%) of initial MF. Twenty eight participants (78%) reported fatigue was the main reason for stopping, and for eight (22%), it was pain. CONCLUSIONS: This study demonstrates that TLS challenges the ES muscles in the thoracic region and results in ES fatigue. Endurance time and the point at which the TLS test ends are strongly related to ES fatigue. PMID- 29322227 TI - ? PMID- 29322225 TI - [Surgical treatment options for hidradenitis suppurativa/acne inversa]. AB - Hidradenitis suppurativa/acne inversa (HS/AI) is a chronic inflammatory skin disease. Therapy consists of conservative and surgical treatment options. In Hurley stages II and III, surgical intervention is regarded as the method of choice for areas with irreversible tissue destruction. Resection techniques with different grades of invasiveness are described in the literature. Nevertheless, there is no generally accepted concept regarding resection and reconstruction techniques or specific postoperative care. Due to lack of definitions of recurrence after surgery and poor study quality, recurrence rates are difficult to determine. PMID- 29322228 TI - [Necrotizing fasciitis of the hand and forearm : Acute surgical treatment and defect reconstruction with MatriDerm(r) and split-thickness skin graft]. AB - This case report describes a 55-year-old male patient with type II necrotizing fasciitis (NF) of the hand and forearm. The rapid progression of the tissue infection could be successfully stopped with radical surgical debridement and antibiotic therapy. For the reconstruction of the extensive loss of soft tissue a combination of split-thickness skin graft (STSG) and the synthetic dermal substitute MatriDerm(r) was used. In cases of NF, MatriDerm(r) and STSG provide a rapidly available and simple alternative to other reconstruction techniques. PMID- 29322226 TI - Nebivolol, a beta-blocker abrogates streptozotocin-induced behavioral, biochemical, and neurophysiological deficit by attenuating oxidative-nitrosative stress: a possible target for the prevention of diabetic neuropathy. AB - Metabolic abnormalities including hyperglycemia, hyperlipidemia, and oxidative nitrosative stress are involved in the progression of diabetic neuropathy. In the present study, we targeted oxidative-nitrosative stress using nebivolol, a beta1 receptor antagonist with vasodilator and antioxidant property, to evaluate its neuroprotective effect in streptozotocin-induced diabetic neuropathy in rats. Diabetic neuropathy develops within 4-6 weeks after administration of streptozotocin (55 mg/kg, i.p.). Therefore, after confirmation of diabetes, subtherapeutic doses of nebivolol (1 and 2 mg/kg, p.o./day) were given to diabetic rats for 8 weeks. Nebivolol treatment significantly improved thermal hyperalgesia, grip strength, and motor coordination. Nebivolol also reduced levels of malondialdehyde, tumor necrosis factor-alpha, and nitrite in diabetes. Moreover, nebivolol increased the levels of superoxide dismutase and catalase in sciatic nerve homogenate of diabetic rats. Further, nebivolol exerted positive effects on lipid profile, sciatic nerve's morphological changes and nerve conduction velocity in diabetic rats. Results of the present study suggest the neuroprotective effect of nebivolol through its antioxidant, nitric oxide potentiating, and antihyperlipidemic activity. PMID- 29322229 TI - Bioanalytical verification of V-type nerve agent exposure: simultaneous detection of phosphonylated tyrosines and cysteine-containing disulfide-adducts derived from human albumin. AB - Nerve agents still represent a serious threat to civilian and military personnel as demonstrated by the violent conflict in the Middle East. For verification of poisoning, covalent adducts with endogenous proteins (e.g., human serum albumin, HSA) are valuable long-term biomarkers. Accordingly, we developed a microbore liquid chromatography-electrospray ionization mass spectrometry/high-resolution mass spectrometry (MULC-ESI MS/HR MS) method for simultaneous detection of HSA adducts with the V-type nerve agents VX, Chinese VX (CVX), and Russian VX (RVX). Following Pronase-catalyzed proteolysis, novel disulfide-adducts were detected in addition to phosphonylated tyrosine residues. Dipeptide disulfide-adducts were formed between the thiol-containing leaving group of the V-type nerve agents (2 (diisopropylamino)ethanethiol, DPAET, for VX and 2-(diethylamino)ethanethiol, DEAET, for CVX and RVX) and the free thiol group of Cys34 in HSA (DPAET-CysPro, DEAET-CysPro). We also identified tripeptide disulfide-adducts containing Cys448 (MetProCys-DPAET, MetProCys-DEAET) and to a lesser extent Cys514 (AspIleCys DPAET, AspIleCys-DEAET). Synthetic tripeptide references were used for confirmation of the postulated structures by MULC-ESI MS/HR MS. Lower limits of detection were determined in human plasma, being nearly identical for the three V type nerve agents, and corresponded to 1-6 MUM nerve agent for tyrosine-adducts, 1-3 MUM nerve agent for CysPro-adducts, and 6 MUM nerve agent for MetProCys adducts, thus covering concentrations of toxicological relevance. Characterization of proteolysis kinetics revealed stable plateaus for all adducts being reached between 60 and 90 min at 37 degrees C. Adduct formation kinetics were characterized by simultaneously monitoring the V-type nerve agent, its leaving group, and the corresponding disulfide dimer. Furthermore, adduct formation patterns were investigated as a function of the molar ratio of HSA to V type nerve agent. Graphical abstract Modification of human serum albumin (HSA) by V-type nerve agents Chinese VX (CVX) and RussianVX (RVX). Various tyrosine residues (Tyr???)n (e.g. most reactive Tyr411) were phosphonylated and disulfide adducts were formed between the thiol-containing leaving group 2 (diethylamino)ethanethiol (DEAET) and at least three cysteine residues (Cys34, Cys448 and Cys514). Pronase-mediated proteolysis produced low-molecular cleavage products including phosphonylated tyrosines, dipeptide (Cys34Pro) and tripeptide (MetProCys448, AspIleCys514) disulfide-adducts that were detected by microbore liquid chromatography-electrospray ionization mass spectrometry/high-resolution mass spectrometry (MULC-ESI MS/HR MS). PMID- 29322230 TI - Migration of Paraburkholderia terrae BS001 Along Old Fungal Hyphae in Soil at Various pH Levels. AB - The movement of bacterial cells along with fungal hyphae in soil (the mycosphere) has been reported in several previous studies. However, how local soil conditions affect bacterial migration direction in the mycosphere has not been extensively studied. Here, we investigated the influence of two soil parameters, pH and soil moisture content, on the migration, and survival, of Paraburkholderia terrae BS001 in the mycosphere of Lyophyllum sp. strain Karsten in microcosms containing a loamy sand soil. The data showed that bacterial movement along the hyphal networks took place in both the "forward" and the "backward" directions. Low soil pH strongly restricted bacterial survival, as well as dispersal in both directions, in the mycosphere. The backward movement was weakly correlated with the amount of fungal tissue formed in the old mycelial network. The initial soil moisture content, set at 12 versus 17% (corresponding to 42 and 60% of the soil water holding capacity), also significantly affected the bacterial dispersal along the fungal hyphae. Overall, the presence of fungal hyphae was found to increase the soil pH (under conditions of acidity), which possibly exerted protective effects on the bacterial cells. Finally, we provide a refined model that describes the bacterial migration patterns with fungal hyphae based on the new findings in this study. PMID- 29322231 TI - The effect of food on the pharmacokinetics of niraparib, a poly(ADP-ribose) polymerase (PARP) inhibitor, in patients with recurrent ovarian cancer. AB - PURPOSE: Niraparib is a highly selective inhibitor of PARP-1 and PARP-2 approved in the United States for maintenance treatment of adult patients with recurrent ovarian cancer in complete or partial response to platinum-based chemotherapy. In this open-label crossover study, we evaluated the effects of food on niraparib pharmacokinetics (PK) and safety. METHODS: Patients received a single 300-mg dose of niraparib either after a high-fat meal or under fasting conditions. After a 7 day PK assessment, all patients received a second 300-mg dose of niraparib under the opposite condition, followed by 7-day PK assessment. Blood samples for PK analyses were collected at baseline (on days 1 and 8) and up to 168 h post-dose. Bioequivalence between conditions was defined by the 90% confidence intervals (CIs) for area under the plasma concentration-time curve (AUC) from 0 to last measurable concentration (AUC0-last) and from 0 to infinity (AUC0-infinity) being within the 80-125% range. RESULTS: The high-fat meal/fasting ratios of geometric least-squares means for AUC0-last and AUC0-infinity were 106.8 (90% CI 97.8 116.6) and 110.1 (90% CI 99.7-121.6), respectively, indicating bioequivalence between conditions. Mean half-life, maximum plasma concentration (Cmax), and time to Cmax after the high-fat meal were similar to, 27% smaller than, and 128% greater than after fasting, respectively. Adverse events were similar between conditions. CONCLUSIONS: A high-fat meal did not impact the PK profile of niraparib, indicating that niraparib can be taken with or without food. Niraparib was safe and well-tolerated. PMID- 29322232 TI - Mechanical Thrombectomy Using the new SolitaireTM Platinum Stent-retriever : Reperfusion Results, Complication Rates and Early Neurological Outcome. AB - BACKGROUND AND PURPOSE: The application of radiopaque markers to the SolitaireTM stent-retriever for better visibility during mechanical thrombectomy (MT) has the potential to alter the well-known characteristics of the device; however, it is uncertain whether this adjustment influences efficacy or safety of the enhanced stent-retriever. METHODS: Retrospective analysis of stroke databases of three comprehensive stroke centers. Our investigation was focused on technical and angiographic parameters, including procedure times, reperfusion results (thrombolysis in cerebral infarction, TICI), periprocedural complications and favorable early neurological recovery at discharge (modified Rankin scale <=2 or National Institutes of Health Stroke Scale, NIHSS = 0 or ?NIHSS >= 10), from consecutive patients with acute anterior circulation ischemic stroke treated with a SolitaireTM Platinum stent-retriever between October 2016 and March 2017. RESULTS: A total of 75 patients (male: n = 27, 36%, age in years: mean (SD): 75 (+/-12), median baseline NIHSS: 17 (interquartile range IQR: 11-21), n = 41, 54.7% received additional i. v. thrombolytics) were treated with a median number of 2 device passes (range: 1-5). The median time from groin puncture to final TICI was 56 min (IQR: 41-79). In 69 patients (92%) TICI 2b-3 was achieved. Early neurological recovery was seen in 47 (62.7%) patients. The following periprocedural complications occurred: vasospasms (n = 7, 9.3%), emboli into a new territory (n = 4, 5.3%), symptomatic intracranial hemorrhage (n = 3, 4%), difficulties during device delivery/deployment (n = 1, 1.3%). CONCLUSION: The usage of the SolitaireTM Platinum stent-retriever for MT in acute ischemic stroke patients was highly effective and was not accompanied by an increased periprocedural complication rate. PMID- 29322233 TI - High Isotropic Resolution T2 Mapping of the Lumbosacral Plexus with T2-Prepared 3D Turbo Spin Echo. AB - PURPOSE: Isotropic high-resolution three-dimensional (3D) magnetic resonance neurography (MRN) is increasingly used to depict even small and highly oblique nerves of the lumbosacral plexus (LSP). The present study introduces a T2 mapping sequence (T2-prepared 3D turbo spin echo) that is B1-insensitive and enables quantitative assessment of LSP nerves. METHODS: In this study 15 healthy subjects (mean age 28.5 +/- 3.8 years) underwent 3 T MRN of the LSP area three times. The T2 values were calculated offline on a voxel-by-voxel basis and measured at three segments (preganglionic, ganglionic, postganglionic) of three LSP nerves (S1, L5, L4) by two independent investigators (experienced and novice). Normative data for the different nerves were extracted and intraclass correlation coefficients (ICCs) were calculated to assess reproducibility and interobserver reliability of T2 measurements. RESULTS: The T2 mapping showed excellent reproducibility with ICCs ranging between 0.99 (S1 preganglionic) and 0.89 (L5 postganglionic). Interobserver reliability was less robust with ICCs ranging between 0.78 (S1 preganglionic) and 0.44 (L5 postganglionic) for S1 and L5. A mean T2 value of 74.6 +/- 4.7 ms was registered for preganglionic segments, 84.7 +/- 4.1 ms for ganglionic and 65.4 +/- 2.5 ms for postganglionic segments, respectively. There was a statistically significant variation of T2 values across the nerve (preganglionic vs ganglionic vs postganglionic) for S1, L5, and L4. CONCLUSION: Our approach enables isotropic high-resolution and B1-insensitive T2 mapping of LSP nerves with excellent reproducibility. It might reflect a robust and clinically useful method for future diagnostics of LSP pathologies. PMID- 29322234 TI - [Efficacy of a ketogenic diet in urological cancers patients : A systematic review]. AB - BACKGROUND: Beside the classical anticancer treatment tumor patients try to find proactive alternative therapies to fight their disease. Lifestyle changes such as introducing a ketogenic diet is one of the most popular among them. The German Association of Urological Oncology (AUO, Arbeitsgemeinschaft Urologische Onkologie) presents a systematic review investigating the evidence of ketogenic diet in cancer patients. MATERIALS AND METHODS: A systematic literature research was conducted in the databases Medline, Livivo, and the Cochrane Library. Only clinical studies of tumor patients receiving chemotherapy while on a ketogenic diet were included. The assessment of the results was performed according to the predefined primary endpoints overall survival and progression-free survival and secondary endpoints quality of life and reduction of adverse effects induced by cytostatics. RESULTS: Nine studies met the inclusion criteria: eight prospective and one retrospective study case series respectively cohort-studies, with a total of 107 patients. Currently there is no evidence of a therapeutic effect of a ketogenic diet in patients with malignant tumors regarding the clinical outcome or quality of life. CONCLUSION: Based on the current data, a ketogenic diet can not be recommended to cancer patients because prospective, randomized trials are missing. PMID- 29322236 TI - [Urosepsis]. AB - Urosepsis is defined as a severe disease due to organ failure caused by a urinary tract infection. An empirical antibiotic therapy should be instigated within the first hour after diagnosis. Urine cultures and blood cultures should be performed before antibiotic treatment. Further diagnostics should be carried out at an early stage to enable an interventional focus control in the case of urinary tract obstruction or abscess formation, if necessary. Gram-negative pathogens are most frequently isolated. Extended spectrum beta-lactamase (ESBL) forming bacteria as a cause of urosepsis are increasing. Carbapenemase-forming Enterobacteriaceae, on the other hand, are still rare. The empirical treatment consists of a broad spectrum beta-lactam antibiotic. While piperacillin/tazobactam, carbapenems and the new cephalosporin/beta-lactamase inhibitor (BLI) combinations are given as monotherapy, cephalosporins should be combined with aminoglycosides (preferred) or fluoroquinolones. If a combination therapy is given, it should be de-escalated to a monotherapy after 48-72 h. PMID- 29322237 TI - Genome-wide association study of cold tolerance of Chinese indica rice varieties at the bud burst stage. AB - KEY MESSAGE: A region containing three genes on chromosome 1 of indica rice was associated with cold tolerance at the bud burst stage; these results may be useful for breeding cold-tolerant lines. Low temperature at the bud burst stage is one of the major abiotic stresses limiting rice growth, especially in regions where rice seeds are sown directly. In this study, we investigated cold tolerance of rice at the bud burst stage and conducted a genome-wide association study (GWAS) based on the 5K rice array of 249 indica rice varieties widely distributed in China. We improved the method to assess cold tolerance at the bud burst stage in indica rice, and used severity of damage (SD) and seed survival rate (SR) as the cold-tolerant indices. Population structure analysis demonstrated that the Chinese indica panel was divided into three subgroups. In total, 47 significant single-nucleotide polymorphism (SNP) loci associated with SD and SR, were detected by association mapping based on mixed linear model. Because some loci overlapped between SD and SR, the loci contained 13 genome intervals and most of them have been reported previously. A major QTL for cold tolerance on chromosome 1 at the position of 31.6 Mb, explaining 13.2% of phenotypic variation, was selected for further analysis. Through LD decay, GO enrichment, RNA-seq data, and gene expression pattern analyses, we identified three genes (LOC_Os01g55510, LOC_Os01g55350 and LOC_Os01g55560) that were differentially expressed between cold-tolerant and cold-sensitive varieties, suggesting they may be candidate genes for cold tolerance. Together, our results provide a new method to assess cold tolerance in indica rice, and establish the foundation for isolating genes related to cold tolerance that could be used in rice breeding. PMID- 29322235 TI - [Interrater reliability and clinical impact of the Post-Ureteroscopic Lesion Scale (PULS) grading system for ureteral lesions after ureteroscopy : Results of the German prospective multicenter BUSTER project]. AB - BACKGROUND: The Post-ureteroscopic Lesion Scale (PULS) was designed as a standardized classification system for ureteral lesions after uretero(reno)scopy (URS). This study evaluates its routine use and a possible clinical impact based on a representative patient cohort. MATERIALS AND METHODS: Data of 307 patients in 14 German centers within the BUSTER project were used to test 3 hypotheses (H): PULS score shows a high interrater reliability (IRR) after independent assessment by urologic surgeon and assistance personnel (H1); PULS score is correlated with the frequency of postoperative complications during hospital stay (H2); post-URS stenting of the ureter is associated with higher PULS scores (H3). RESULTS: Median age of patients was 54.4 years (interquartile range [IQR] 44.4 65.8; 65.5% male). Median diameter of index stones was 6 mm (IQR 4-8) with 117 (38.4%) pyelo-caliceal and 188 (61.6%) ureteral stones. Overall, 70 and 82.4% of patients had pre-stenting and post-URS stenting, respectively. Stone-free status was achieved in 68.7% after one URS procedure with a complication rate of 10.8% (mostly grade 1-2 according to Clavien-Dindo). PULS scores 0, 1, 2 and 3 were assessed in 40%, 52.1%, 6.9% and 1% of patients, respectively, when estimated by urologic surgeons. PULS score showed a high IRR between the urologic surgeon and assistance personnel (kappa = 0.883, p < 0.001), but was not significantly correlated with complications (rho = 0.09, p = 0.881). In contrast, a significant positive correlation was found between PULS score and post-URS stenting (rho = 0.287, p < 0.001). A PULS score of 1 multiplied the likelihood of post-URS stenting by 3.24 (95% confidence interval 1.43-7.34; p = 0.005) as opposed to PULS score 0. CONCLUSIONS: Removal of upper urinary tract stones using URS is safe and efficacious. Real-world data provided by this study confirm a high IRR of the PULS score and its clinical impact on the indication for post-URS stenting. A future prospective randomized trial should evaluate a possible standardization of post-URS stenting based on PULS score assessment. PMID- 29322238 TI - Development of inhibitory synaptic inputs on layer 2/3 pyramidal neurons in the rat medial prefrontal cortex. AB - Inhibitory control of pyramidal neurons plays a major role in governing the excitability in the brain. While spatial mapping of inhibitory inputs onto pyramidal neurons would provide important structural data on neuronal signaling, studying their distribution at the single cell level is difficult due to the lack of easily identifiable anatomical proxies. Here, we describe an approach where in utero electroporation of a plasmid encoding for fluorescently tagged gephyrin into the precursors of pyramidal cells along with ionotophoretic injection of Lucifer Yellow can reliably and specifically detect GABAergic synapses on the dendritic arbour of single pyramidal neurons. Using this technique and focusing on the basal dendritic arbour of layer 2/3 pyramidal cells of the medial prefrontal cortex, we demonstrate an intense development of GABAergic inputs onto these cells between postnatal days 10 and 20. While the spatial distribution of gephyrin clusters was not affected by the distance from the cell body at postnatal day 10, we found that distal dendritic segments appeared to have a higher gephyrin density at later developmental stages. We also show a transient increase around postnatal day 20 in the percentage of spines that are carrying a gephyrin cluster, indicative of innervation by a GABAergic terminal. Since the precise spatial arrangement of synaptic inputs is an important determinant of neuronal responses, we believe that the method described in this work may allow a better understanding of how inhibition settles together with excitation, and serve as basics for further modelling studies focusing on the geometry of dendritic inhibition during development. PMID- 29322239 TI - The lateralized arcuate fasciculus in developmental pitch disorders among mandarin amusics: left for speech and right for music. AB - The arcuate fasciculus (AF) is a neural fiber tract that is critical to speech and music development. Although the predominant role of the left AF in speech development is relatively clear, how the AF engages in music development is not understood. Congenital amusia is a special neurodevelopmental condition, which not only affects musical pitch but also speech tone processing. Using diffusion tensor tractography, we aimed at understanding the role of AF in music and speech processing by examining the neural connectivity characteristics of the bilateral AF among thirty Mandarin amusics. Compared to age- and intelligence quotient (IQ) matched controls, amusics demonstrated increased connectivity as reflected by the increased fractional anisotropy in the right posterior AF but decreased connectivity as reflected by the decreased volume in the right anterior AF. Moreover, greater fractional anisotropy in the left direct AF was correlated with worse performance in speech tone perception among amusics. This study is the first to examine the neural connectivity of AF in the neurodevelopmental condition of amusia as a result of disrupted music pitch and speech tone processing. We found abnormal white matter structural connectivity in the right AF for the amusic individuals. Moreover, we demonstrated that the white matter microstructural properties of the left direct AF is modulated by lexical tone deficits among the amusic individuals. These data support the notion of distinctive pitch processing systems between music and speech. PMID- 29322241 TI - Halorubrum depositum sp. nov., a Novel Halophilic Archaeon Isolated from a Salt Deposit. AB - A non-motile, pleomorphic rod-shaped or oval, red-pigmented (nearly scarlet), extremely halophilic archaeon, strain Y78T, was isolated from a salt deposit of Yunnan salt mine, China. Analysis of the 16S rRNA gene sequence showed that it was phylogenetically related to species of the genus Halorubrum, with a close relationship to Halorubrum rutilum YJ-18-S1T (98.6%), Halorubrum yunnanense Q85T (98.3%), and Halorubrum lipolyticum 9-3T (98.1%). The temperature, NaCl, and pH ranges for growth were 25-50 degrees C, 12-30% (w/v), and 6.5-9.0, respectively. Mg2+ was required for growth. The polar lipids of strain Y78T were phosphatidylglycerol, phosphatidylglycerol phosphate methyl ester, phosphatidylglycerol sulfate, and a sulfated diglycosyl diether. The DNA G+C content was 66.6 mol%. DNA-DNA hybridization values between strain Y78T and two closely related species of the genus Halorubrum were far below 70%. Based on the data presented in this study, strain Y78T represents a novel species for which the name Halorubrum depositum sp. nov. is proposed; the type strain is Y78T (= CGMCC 1.15456T = JCM 31272T). PMID- 29322242 TI - Utility of fosfomycin as antibacterial prophylaxis in patients with hematologic malignancies. AB - PURPOSE: Prolonged and profound neutropenia is common among hematology and hematopoietic stem cell transplant (HSCT) patients as a result of chemotherapy. The National Comprehensive Cancer Network (NCCN) and Infectious Diseases Society of America (IDSA) currently recommend antibacterial prophylaxis in patients who are deemed at intermediate or high risk for infection. Specifically, fluoroquinolone prophylaxis should be considered for high-risk neutropenic patients. However, with prolonged and frequent exposure to fluoroquinolones, these high-risk patients may develop resistance to these agents. Patients may also have allergies or other contraindications which prohibit the use of fluoroquinolones for antibacterial prophylaxis. Unfortunately, there is no standard recommendation for alternative antimicrobial therapy in this patient population, as well as there is a lack of data to support the use of potential alternative agents. METHODS: Currently, Yale-New Haven Hospital utilizes fosfomycin for antibacterial prophylaxis in patients who are not eligible for fluoroquinolone therapy. The primary objective of this study was to assess the incidence of breakthrough infections in this population receiving fosfomycin. Secondary objectives included organisms identified, types of breakthrough infections, resistance patterns, and time from initiation to onset of fever. RESULTS: Of the 42 patients who received fosfomycin, 25 patients with 42 admissions met inclusion criteria. A total of 8 (19%) breakthrough infections occurred during the 42 admissions. Organisms included Klebsiella spp. (5), Streptococcus mitis/viridans (2), Pseudomonas aeruginosa (1), and coagulase negative staphylococcus (1). Infections included the following: bacteremia (7), cellulitis (1), and urine (1). CONCLUSION: Given the low rate of breakthrough infections, fosfomycin may be a potential alternative option for antibacterial prophylaxis. PMID- 29322240 TI - Ki-67: more than a proliferation marker. AB - Ki-67 protein has been widely used as a proliferation marker for human tumor cells for decades. In recent studies, multiple molecular functions of this large protein have become better understood. Ki-67 has roles in both interphase and mitotic cells, and its cellular distribution dramatically changes during cell cycle progression. These localizations correlate with distinct functions. For example, during interphase, Ki-67 is required for normal cellular distribution of heterochromatin antigens and for the nucleolar association of heterochromatin. During mitosis, Ki-67 is essential for formation of the perichromosomal layer (PCL), a ribonucleoprotein sheath coating the condensed chromosomes. In this structure, Ki-67 acts to prevent aggregation of mitotic chromosomes. Here, we present an overview of functional roles of Ki-67 across the cell cycle and also describe recent experiments that clarify its role in regulating cell cycle progression in human cells. PMID- 29322244 TI - Metacontrol and body ownership: divergent thinking increases the virtual hand illusion. AB - The virtual hand illusion (VHI) paradigm demonstrates that people tend to perceive agency and bodily ownership for a virtual hand that moves in synchrony with their own movements. Given that this kind of effect can be taken to reflect self-other integration (i.e., the integration of some external, novel event into the representation of oneself), and given that self-other integration has been previously shown to be affected by metacontrol states (biases of information processing towards persistence/selectivity or flexibility/integration), we tested whether the VHI varies in size depending on the metacontrol bias. Persistence and flexibility biases were induced by having participants carry out a convergent thinking (Remote Associates) task or divergent-thinking (Alternate Uses) task, respectively, while experiencing a virtual hand moving synchronously or asynchronously with their real hand. Synchrony-induced agency and ownership effects were more pronounced in the context of divergent thinking than in the context of convergent thinking, suggesting that a metacontrol bias towards flexibility promotes self-other integration. PMID- 29322243 TI - Humanistic burden of disease for patients with advanced melanoma in Canada. AB - BACKGROUND: Metastatic melanoma is a highly aggressive cancer, often striking in the prime of life. This study provides new information directly from advanced melanoma (stage III and IV) patients on how their disease impacts their health related quality of life (HRQL). METHODS: Twenty-nine in-depth, qualitative interviews were conducted with adult patients with advanced melanoma in Canada. A semi-structured interview guide was used. Interviews were transcribed verbatim and key concepts were identified using a grounded theory analytic approach. RESULTS: Many patients' journeys began with the startling diagnosis of an invasive disease and a vastly shortened life expectancy. By the time they reached an advanced stage of melanoma, these patients' overall functioning and quality of life had been greatly diminished by this quickly progressing cancer. The impact was described in terms of physical pain and disability, emotional distress, diminished interactions with friends and family, and burden on caregivers. CONCLUSION: Our findings provide evidence of signs, symptoms, and functional impacts of advanced melanoma. Signs and symptoms reported (physical, mental, and social) confirm and expand on those reported in the existing clinical literature. Primary care physicians should be better trained to identify melanomas early. Oncology care teams can improve on their current approaches for helping patients navigate treatment options, with information about ancillary services to mitigate disease impacts on HRQL, such as mental health and social supports, as well as employment or financial support services. PMID- 29322245 TI - Interactions between incentive valence and action information in a cued approach avoidance task. AB - Environmental stimuli can provoke specific response tendencies depending on their incentive valence. While some studies report positive-approach and negative avoidance biases, others find no such mappings. To further illuminate the relationship between incentive valence and action requirement, we combined a cued monetary incentive paradigm with an approach/avoidance joystick task. Incentive type was manipulated between groups: The reward group won money, while the punishment group avoided losing money for correct and fast responses to targets following incentive cues. Depending on their orientations, targets had to be 'approached' or 'avoided'. Importantly, incentive valence (signaled by cue color) was orthogonal to action requirement (target orientation). Moreover, targets could carry valence-associated information or not (target color), which was, however, task-irrelevant. First, we observed that both valence cues (reward/punishment) improved performance compared to neutral cues, independent of the required action (approach/avoid), suggesting that advance valence cues do not necessarily produce specific action biases. Second, task-irrelevant valence associations with targets promoted action biases, with valence-associated targets facilitating approach and impairing avoid responses. Importantly, this approach bias for valence-associated targets was observed in both groups and hence occurred independently of absolute valence ('unsigned'). This rather unexpected finding might be related to the absence of a direct contrast between positive valence and negative valence within groups and the common goal to respond fast and accurately in all incentive trials. Together, our results seem to challenge the notion that monetary incentives trigger 'hard-wired' valence-action biases in that specific design choices seem to modulate the presence and/or direction of valence-action biases. PMID- 29322246 TI - De novo variants in SETD1B are associated with intellectual disability, epilepsy and autism. AB - SETD1B (SET domain containing 1B) is a component of SET1 histone methyltransferase complex, which mediates the methylation of histone H3 on lysine 4 (H3K4). Here, we describe two unrelated individuals with de novo variants in SETD1B identified by trio-based whole exome sequencing: c.5524C>T, p.(Arg1842Trp) and c.5575C>T, p.(Arg1859Cy). The two missense variants occurred at evolutionarily conserved amino acids and are located within the SET domain, which plays a pivotal role in catalyzing histone methylation. Previous studies have suggested that de novo microdeletions in the 12q24.3 region encompassing SETD1B were associated with developmental delays, intellectual disabilities, autism/autistic behavior, large stature and craniofacial anomalies. Comparative mapping of 12q24.3 deletions refined the candidate locus, indicating KDM2B and SETD1B to be the most plausible candidate genes for the pathogenicity of 12q24.3 deletion syndrome. Our cases showed epilepsy, developmental delay, intellectual disabilities, autistic behavior and craniofacial dysmorphic features, which are consistent with those of individuals with de novo 12q24.31 deletions. Therefore, our study suggests that SETD1B aberration is likely to be the core defect in 12q24.3 deletion syndrome. PMID- 29322247 TI - Comparison of the neuroinflammatory responses to selective retina therapy and continuous-wave laser photocoagulation in mouse eyes. AB - PURPOSE: This study investigated microglia and inflammatory cell responses after selective retina therapy (SRT) with microsecond-pulsed laser in comparison to continuous-wave laser photocoagulation (cwPC). METHODS: Healthy C57BL/6 J mice were treated with either a train of short pulses (SRT; 527-nm, Q-switched, 1.7 MUs pulse) or a conventional thermal continuous-wave (532-nm, 100-ms pulse duration) laser. The mice were sacrificed and their eyes were enucleated 1, 3, 7, and 14 days after both laser treatments. Pattern of cell death on retinal section was evaluated by TUNEL assay, and the distribution of activated inflammatory cells and glial cells were observed under immunohistochemistry. Consecutive changes for the expression of cytokines such as IL-1beta, TNF-alpha, and TGF-beta were also examined using immunohistochemistry, and compared among each period after quantification by Western blotting. RESULTS: The numbers of TUNEL-positive cells in the retinal pigment epithelium (RPE) layer did not differ in SRT and cwPC lesions, but TUNEL-positive cells in neural retinas were significantly less on SRT. Vague glial cell activation was observed in SRT-treated lesions. The population of inflammatory cells was also significantly decreased after SRT, and the cells were located in the RPE layer and subretinal space. Proinflammatory cytokines, including IL-1beta and TNF-alpha, showed significantly lower levels after SRT; conversely, the level of TGF-beta was similar to the cwPC-treated lesion. CONCLUSIONS: SRT resulted in selective RPE damage without collateral thermal injury to the neural retina, and apparently produced negligible glial activation. In addition, SRT showed a markedly less inflammatory response than cwPC, which may have important therapeutic implications for several macular diseases. PMID- 29322248 TI - A reversible liquid drop aggregation controls glucose response in yeast. AB - Glucose is the preferred carbon of the yeast Saccharomyces cerevisiae. Depletion of glucose activates SNF1 (yeast AMP-activated protein kinase-AMPK), allowing cells to switch from fermentation to respiration. We have recently characterized the mechanism by which SNF1 activity is regulated by the Std1 protein, and its regulator Sip5. The hitherto uncharacterized protein kinase Vhs1 phosphorylates Sip5 in response to glucose availability, disengaging it from Std1 and promoting the sequestering of the SNF1 activator out of the nucleus into cytoplasmic puncta. These aggregates, which have the properties of liquid drops, and not of amyloids, reside in the nucleus-vacuole junction. The process is reversible, and Std1 puncta dissolve when glucose becomes scarce again. This reversible process requires protein chaperones, similar to the aggregation of toxic or misfolded proteins such as those associated with Huntington's Chorea, Alzheimer's and CJD diseases. Our results thus reveal a regulated, non-pathological, physiological role of protein aggregation that controls a major metabolic cellular pathway. PMID- 29322249 TI - MiR-375 inhibits the hepatocyte growth factor-elicited migration of mesenchymal stem cells by downregulating Akt signaling. AB - The migration of mesenchymal stem cells (MSCs) is critical for their use in cell based therapies. Accumulating evidence suggests that microRNAs are important regulators of MSC migration. Here, we report that the expression of miR-375 was downregulated in MSCs treated with hepatocyte growth factor (HGF), which strongly stimulates the migration of these cells. Overexpression of miR-375 decreased the transfilter migration and the migration velocity of MSCs triggered by HGF. In our efforts to determine the mechanism by which miR-375 affects MSC migration, we found that miR-375 significantly inhibited the activation of Akt by downregulating its phosphorylation at T308 and S473, but had no effect on the activity of mitogen-activated protein kinases. Further, we showed that 3'phosphoinositide-dependent protein kinase-1 (PDK1), an upstream kinase necessary for full activation of Akt, was negatively regulated by miR-375 at the protein level. Moreover, miR-375 suppressed the phosphorylation of focal adhesion kinase (FAK) and paxillin, two important regulators of focal adhesion (FA) assembly and turnover, and decreased the number of FAs at cell periphery. Taken together, our results demonstrate that miR-375 inhibits HGF-elicited migration of MSCs through downregulating the expression of PDK1 and suppressing the activation of Akt, as well as influencing the tyrosine phosphorylation of FAK and paxillin and FA periphery distribution. PMID- 29322251 TI - Rhinoplasty: lessons from "errors" : From anatomy and experience to the concept of sequential primary rhinoplasty. AB - BACKGROUND: Reshaping the nose can be achieved following 3 main concepts: preservation and reshaping of normal anatomy, resection of nasal deformities, reconstruction of nasal framework. Time, experience and nasal anatomic knowledge are keys to understand nasal biomechanics. OBJECTIVES: To describe how experience and morphodynamic anatomy lead to a new concept of sequential primary rhinoplasty, resulting in reducing revision rhinoplasties. METHODS: Through 36 years' experience in different rhinoplasty procedures, 25 years in personal anatomic studies of the nose and reviewing the last 15 years including 600 patients who underwent new concepts in primary rhinoplasty out of 1200 patients operated during this period, the author analyzes how nasal anatomic layers, surgical approaches, and morphological effect of the time interact to modify the aesthetic results according to current rhinoplasty concepts. RESULTS: Nasal bony cartilaginous vaults biomechanics understanding leads to consider the K-area as a flexible joint which can be reshaped without resection of the nasal vaults. The role of the subdorsal septum is highlighted as the main anatomic structure which can be safely resected in rhinoplasty, and which allows to respect the natural anatomy, the nasal valves and the dorsal aesthetic lines. Description of nasal compartments divided by the "T" ligament leads to rethink the incisions and approaches of the nose: the interseptal-columellar and extended infracartilaginous incisions allow to protect nasal ligaments and to perform a deep plane undermining. Protection of the anatomic layers allows quick recovery, nasal function improvement and long-lasting results. CONCLUSION: The goal to reduce the rate of revision rhinoplasty and to improve the natural results can be achieved, considering the concept of sequential primary rhinoplasty. Nasal soft tissues are protected as far as possible. The current rhinoplasty concepts are not antagonist but appear as an intraoperative succession of alternative techniques from anatomy and function preservation to reconstruction of the nasal framework. PMID- 29322252 TI - [Cystic lesions of the jaws]. AB - Cystic lesions of the jaws comprise a spectrum of inflammatory, developmental and neoplastic changes that can clinically appear strikingly similar. Squamous cell metaplasia due to superinfection can further blur the histologic hallmarks of the individual lesions. In this article an overview of the most important differential diagnoses and the novelties of the latest World Health Organisation (WHO) classification on head and neck tumours released in early 2017 is provided. In contrast to the previous edition, odontogenic cysts have been re-introduced and several changes in terminology and taxonomy have been complemented. PMID- 29322255 TI - [Electronic vision aids : New options for rehabilitation of the visually impaired]. AB - Due to technical advances, there has been an enormous improvement of electronic vision aids in recent years. New developments are especially small portable devices which can be easily carried. The majority of electronic vision aids serve as a reading aid. Electronic magnifiers are a portable alternative to conventional screen readers. In addition, there are mobile reading devices and special computer tools. Color recognition devices and barcode scanners are helpful in everyday life. Ultrasonic orientation systems enable the recognition of obstacles also at head height. Mechanisms incorporated in shoes even comprise a navigation system. A brand new development is OrCam (OrCam Technologies Ltd., Israel), a small, inconspicuous camera system which is attached to the spectacles. It transmits vision information as a text. Smart phones and tablet personal computers have meanwhile been developed to such an extent that they replace more expensive special vision aids. Due to the immense technical progress, electronic vision aids provide visually impaired people with many elegant functions and new possibilities for ophthalmological rehabilitation. Besides the technical, mobile and financial aspects, the social acceptance of the devices, which should be as unobtrusive as possible, plays an essential role. PMID- 29322253 TI - Identification of a mutation in CNNM4 by whole exome sequencing in an Amish family and functional link between CNNM4 and IQCB1. AB - We investigated an Amish family in which three siblings presented with an early onset childhood retinal dystrophy inherited in an autosomal recessive fashion. Genome-wide linkage analysis identified significant linkage to marker D2S2216 on 2q11 with a two-point LOD score of 1.95 and a multi-point LOD score of 3.76. Whole exome sequencing was then performed for the three affected individuals and identified a homozygous nonsense mutation (c.C1813T, p.R605X) in the cyclin and CBS domain divalent metal cation transport mediator 4 (CNNM4) gene located within the 2p14-2q14 Jalili syndrome locus. The initial assessment and collection of the family were performed before the clinical delineation of Jalili syndrome. Another assessment was made after the discovery of the responsible gene and the dental abnormalities characteristic of Jalili syndrome were retrospectively identified. The p.R605X mutation represents the first probable founder mutation of Jalili syndrome identified in the Amish community. The molecular mechanism underlying Jalili syndrome is unknown. Here we show that CNNM4 interacts with IQCB1, which causes Leber congenital amaurosis (LCA) when mutated. A truncated CNNM4 protein starting at R605 significantly increased the rate of apoptosis, and significantly increased the interaction between CNNM4 and IQCB1. Mutation p.R605X may cause Jalili syndrome by a nonsense-mediated decay mechanism, affecting the function of IQCB1 and apoptosis, or both. Our data, for the first time, functionally link Jalili syndrome gene CNNM4 to LCA gene IQCB1, providing important insights into the molecular pathogenic mechanism of retinal dystrophy in Jalili syndrome. PMID- 29322254 TI - The effects of the calcium-magnesium-bicarbonate content in thermal mineral water on chronic low back pain: a randomized, controlled follow-up study. AB - The aim of this study was to investigate the effects of balneotherapy on chronic low back pain. This is a minimized, follow-up study evaluated according to the analysis of intention to treat. The subjects included in the study were 105 patients suffering from chronic low back pain. The control group (n = 53) received the traditional musculoskeletal pain killer treatment, while the target group (n = 52) attended thermal mineral water treatment for 3 weeks for 15 occasions on top of the usual musculoskeletal pain killer treatment. The following parameters were measured before, right after, and 9 weeks after the 3 week therapy: the level of low back pain in rest and the level during activity are tested using the Visual Analog Scale (VAS); specific questionnaire on the back pain (Oswestry); and a questionnaire on quality of life (EuroQual-5D). All of the investigated parameters improved significantly (p < 0.001) in the target group by the end of the treatment compared to the base period, and this improvement was persistent during the follow-up period. There were no significant changes in the measured parameters in the control group. Based on our results, balneotherapy might have favorable impact on the clinical parameters and quality of life of patients suffering from chronic low back pain. PMID- 29322257 TI - Repurposing drugs to treat neurological diseases. PMID- 29322256 TI - Pilot-scale process development for low-cost production of a thermostable biodiesel refining enzyme in Escherichia coli. AB - Biodiesels produced from vegetable oils have a major quality problem due to the presence of steryl glucosides (SGs), which form precipitates that clog filters and cause engine failures. Recently, we described an enzymatic process for removing SGs from biodiesel. However, industrial adoption of this technology was hindered by the cost of the steryl glucosidase (SGase) enzyme used. Here we report the development and validation at the pilot scale of a cost-efficient process for manufacturing the SGase. First, we tested various low-cost carbon sources for the Escherichia coli producing strain, ultimately developing a fed batch fermentation process that utilizes crude glycerol as a feedstock. Next, we designed an efficient process for isolating the SGase. That process uses a novel thermolysis approach in the presence of a non-ionic detergent, centrifugation to separate the solids, and ultrafiltration to concentrate and formulate the final product. Our cost analysis indicates that on a large scale, the dose of enzyme required to eliminate SGs from each ton of biodiesel will have a manufacturing cost below $1. The new process for manufacturing the SGase, which will lead to biodiesels of a higher quality, should contribute to facilitate the global adoption of this renewable fuel. Our technology could also be used to manufacture other thermostable proteins in E. coli. PMID- 29322258 TI - Voluntary control of a plegic limb during yawning. PMID- 29322260 TI - Minimally invasive opening wedge tibia outpatient osteotomy, using screw-to-plate locking technique and a calcium phosphate cement. AB - Medial knee osteoarthritis on angular varus deformity of a lower limb is very common. Open-wedge high tibial osteotomy is a treatment of choice if cartilage is not excessively worn (Allback 1 or 2). The technique based on a plate fixation and the bone defect filled with calcium phosphate cement is thoroughly described. Data at 1, 3, 6 months and 1 year of a 19 cases continuous and prospective series are collected and analysed. Mean age at the time of operation was 55 years. The average preoperative varus deformity was 5 degrees and corrected to an average postoperative valgus of 4 degrees (range 3 degrees -6 degrees ). Each control includes the collection of eventual complications, the measurement of health status (quality of life and functional scores) and antero-posterior and lateral X rays. All osteotomies were considered healed at 6 weeks without any correction loss except one, probably result of a technical error. There was no difference in clinical and functional results between the group and the literature, but the final result occurred earlier in the treatment when the bone defect was filled with either calcium phosphate cement. Faster recovery involved no specific complication and enabled outpatient treatment in a majority of patients. PMID- 29322250 TI - Lactate metabolism: historical context, prior misinterpretations, and current understanding. AB - Lactate (La-) has long been at the center of controversy in research, clinical, and athletic settings. Since its discovery in 1780, La- has often been erroneously viewed as simply a hypoxic waste product with multiple deleterious effects. Not until the 1980s, with the introduction of the cell-to-cell lactate shuttle did a paradigm shift in our understanding of the role of La- in metabolism begin. The evidence for La- as a major player in the coordination of whole-body metabolism has since grown rapidly. La- is a readily combusted fuel that is shuttled throughout the body, and it is a potent signal for angiogenesis irrespective of oxygen tension. Despite this, many fundamental discoveries about La- are still working their way into mainstream research, clinical care, and practice. The purpose of this review is to synthesize current understanding of La metabolism via an appraisal of its robust experimental history, particularly in exercise physiology. That La- production increases during dysoxia is beyond debate, but this condition is the exception rather than the rule. Fluctuations in blood [La-] in health and disease are not typically due to low oxygen tension, a principle first demonstrated with exercise and now understood to varying degrees across disciplines. From its role in coordinating whole-body metabolism as a fuel to its role as a signaling molecule in tumors, the study of La- metabolism continues to expand and holds potential for multiple clinical applications. This review highlights La-'s central role in metabolism and amplifies our understanding of past research. PMID- 29322259 TI - CSF neurofilament proteins as diagnostic and prognostic biomarkers for amyotrophic lateral sclerosis. AB - Elevated cerebrospinal fluid (CSF), Neurofilament Light (NF-L) and phosphorylated Heavy (pNF-H) chain levels have been found in Amyotrophic Lateral Sclerosis (ALS), with studies reporting a correlation of both neurofilaments (NFs) with the disease progression. Here, we measured NF-L and pNF-H concentrations in the CSF of ALS patients from a single tertiary Center and investigated their relationship with disease-related variables. A total of 190 ALS patients (Bulbar, 29.9%; Spinal, 70.1%; M/F = 1.53) and 130 controls with mixed neurological diseases were recruited. Demographic and clinical variables were recorded, and DeltaFS was used to rate the disease progression. Controls were divided into two cohorts: (1) patients with non-inflammatory neurological diseases (CTL-1); (2) patients with acute/subacute inflammatory diseases and tumors, expected to lead to significant axonal and tissue damage (CTL-2). For each patient and control, CSF was taken at the time of the diagnostic work-up and stored following the published guidelines. CSF NF-L and pNF-H were assayed with commercially available ELISA-based methods. Standard curves (from independent ELISA kits) were highly reproducible for both NFs, with a coefficient of variation < 20%. We found that CSF NF-L and pNF-H levels in ALS were significantly increased when compared to CTL-1 (NF-L: ALS, 4.7 ng/ml vs CTL-1, 0.61 ng/ml, p < 0.001; pNF-H: ALS, 1.7 ng/ml vs CTL-1, 0.03 ng/ml, p < 0.0001), but not to CTL-2. Analysis of different clinical and prognostic variables disclosed meaningful correlations with both NF-L and pNF-H levels. Our results, from a relatively large ALS cohort, confirm that CSF NF-L and pNF-H represent valuable diagnostic and prognostic biomarkers in ALS. PMID- 29322261 TI - The journey from genetic predisposition to medication overuse headache to its acquisition as sequela of chronic migraine. AB - Migraine remains one of the biggest clinical case to be solved among the non communicable diseases, second to low back pain for disability caused as reported by the Global Burden of Disease Study 2016. Despite this, its genetics roots are still unknown. Its evolution in chronic forms hits 2-4% of the population and causes a form so far defined Medication Overuse Headache (MOH), whose pathophysiological basis have not been explained by many dedicated studies. The Global Burden of Disease Study 2016 has not recognized MOH as independent entity, but as a sequela of Chronic Migraine. This concept, already reported in previous studies, has been confirmed by the efficacy of OnabotulinumtoxinA in Chronic Migraine independently from the presence of MOH. The consistency of the current definitions of both Medication Overuse Headache and Chronic Migraine itself might be re-read on the basis of new evidences. PMID- 29322262 TI - Partial secretome analysis of Caldariomyces fumago reveals extracellular production of the CPO co-substrate H2O2 and provides a coproduction concept for CPO and glucose oxidase. AB - The culture supernatant of Caldariomyces fumago strains grown in a minimal medium with fructose contains mainly the biotechnologically relevant enzyme chloroperoxidase (CPO) and only minor amounts of other proteins. Our approach to identify the nature of these proteins via peptide mass fingerprinting and transcriptome analysis demonstrated the presence of putative glycosyl hydrolase and glucose oxidase (GOx) enzymes. These activities had been described earlier as parts of the fungus' halogenation machinery, as they provide CPO with the co substrate H2O2. The GOx activity was found to have a pH optimum of 5. Compared to the wild type values, GOx activity and glucose-driven MCD chlorination activity in the culture of a white mutant were found to be strongly increased to values of 1-2 U mL-1. As most CPO-catalyzed peroxidation reactions also show pH optima at around 5, the C. fumago culture supernatant can provide a highly convenient CPO/GOx source for many reactions with in situ H2O2 production. PMID- 29322263 TI - Comparative transcriptomic analysis of skeletal muscle tissue during prenatal stages in Tongcheng and Yorkshire pig using RNA-seq. AB - Myogenesis is accompanied by a number of changes in gene expression in mammals, and the transcriptional events that underlie these processes have not been yet fully elucidated. In this study, RNA-seq was used to comprehensively compare the transcription profiles of skeletal muscle between Tongcheng (TC) and Yorkshire (YK) pigs at 40, 55, 63, 70, and 90 days of gestation. One thousand three hundred seventeen and 691 differentially expressed genes (DEGs) were detected in TC and YK, respectively, among which 321 DEGs were shown to be common in TC and YK. STEM (Time-series Expression Miner) analysis revealed different gene expression profiles between the two breeds. One thousand six hundred seventy-seven genes showed significant differential expression between TC and YK at the identical stages, while three genes were found to be common in all comparisons. A total of 3185 new putative transcripts were also predicted. Several gene expression profiles were further validated by qRT-PCR. Fifty-five dpc (days post coitum) was suggested to be the key stage to contribute developmental differences between TC and YK. PTEN, EP300, ENSSSCG00000004979 (Myosin 9A), CDK14, IRS1, PPP1CC, and some ribosomal proteins were suggested to be the key candidate genes for elucidating the developmental differences between the two breeds. In conclusion, we constructed comprehensive high-resolution gene expression maps of these two pig breeds, which not only provides an in-depth understanding of the dynamics of transcriptional regulation during myogenesis in this study, but also would facilitate the elucidation of molecular mechanisms underlying myogenesis in the future studies. PMID- 29322266 TI - Intraoperative tools for cerebral bypass surgery. PMID- 29322264 TI - Cerebral gray matter volume in patients with chronic migraine: correlations with clinical features. AB - BACKGROUND: To date, few MRI studies have been performed in patients affected by chronic migraine (CM), especially in those without medication overuse. Here, we performed magnetic resonance imaging (MRI) voxel-based morphometry (VBM) analyses to investigate the gray matter (GM) volume of the whole brain in patients affected by CM. Our aim was to investigate whether fluctuations in the GM volumes were related to the clinical features of CM. METHODS: Twenty untreated patients with CM without a past medical history of medication overuse underwent 3-Tesla MRI scans and were compared to a group of 20 healthy controls (HCs). We used SPM12 and the CAT12 toolbox to process the MRI data and to perform VBM analyses of the structural T1-weighted MRI scans. The GM volume of patients was compared to that of HCs with various corrected and uncorrected thresholds. To check for possible correlations, patients' clinical features and GM maps were regressed. RESULTS: Initially, we did not find significant differences in the GM volume between patients with CM and HCs (p < 0.05 corrected for multiple comparisons). However, using more-liberal uncorrected statistical thresholds, we noted that compared to HCs, patients with CM exhibited clusters of regions with lower GM volumes including the cerebellum, left middle temporal gyrus, left temporal pole/amygdala/hippocampus/pallidum/orbitofrontal cortex, and left occipital areas (Brodmann areas 17/18). The GM volume of the cerebellar hemispheres was negatively correlated with the disease duration and positively correlated with the number of tablets taken per month. CONCLUSION: No gross morphometric changes were observed in patients with CM when compared with HCs. However, using more liberal uncorrected statistical thresholds, we observed that CM is associated with subtle GM volume changes in several brain areas known to be involved in nociception/antinociception, multisensory integration, and analgesic dependence. We speculate that these slight morphometric impairments could lead, at least in a subgroup of patients, to the development and continuation of maladaptive acute medication usage. PMID- 29322267 TI - Association of decision-making in spinal surgery with specialty and emotional involvement-the Indications in Spinal Surgery (INDIANA) survey. AB - BACKGROUND: Although recent trials provided level I evidence for the most common degenerative lumbar spinal disorders, treatment still varies widely. Thus, the Indications in Spinal Surgery (INDIANA) survey explores whether decision-making is influenced by specialty or personal emotional involvement of the treating specialist. METHOD: Nationwide, neurosurgeons and orthopedic surgeons specialized in spine surgery were asked to answer an Internet-based questionnaire with typical clinical patient cases of lumbar disc herniation (DH), lumbar spinal stenosis (SS), and lumbar degenerative spondylolisthesis (SL). The surgeons were assigned to counsel a patient or a close relative, thus creating emotional involvement. This was achieved by randomly allocating the surgeons to a patient group (PG) and relative group (RG). We then compared neurosurgeons to orthopedic surgeons and the PG to the RG regarding treatment decision-making. RESULTS: One hundred twenty-two spine surgeons completed the questionnaire (response rate 78.7%). Regarding DH and SS, more conservative treatment among orthopedic surgeons was shown (DH: odds ratio [OR] 4.1, 95% confidence interval [CI] 1.7 9.7, p = 0.001; SS: OR 3.9, CI 1.8-8.2, p < 0.001). However, emotional involvement (PG vs. RG) did not affect these results for any of the three cases (DH: p = 0.213; SS: p = 0.097; SL: p = 0.924). CONCLUSIONS: The high response rate indicates how important the issues raised by this study actually are for dedicated spine surgeons. Moreover, there are considerable variations in decision making for the most common degenerative lumbar spinal disorders, although there is high-quality data from large multicenter trials available. Emotional involvement, though, did not influence treatment recommendations. PMID- 29322268 TI - Comment to: Characterization of host response, resorption, and strength properties, and performance in the presence of bacteria for fully absorbable biomaterials for soft tissue repair. Stoikes NFN, Scott J, Badhwar A, Deeken C, Voeller G. PMID- 29322269 TI - Prognostic value of simultaneous 18F-FDG PET/MRI using a combination of metabolo volumetric parameters and apparent diffusion coefficient in treated head and neck cancer. AB - BACKGROUND: The aim of this study was to determine the usefulness of combined positron emission tomography (PET)/magnetic resonance imaging (MRI) parameters provided by simultaneous 18F-fluorodeoxyglucose (FDG) PET/MRI for the prediction of treatment failure in surgically resected head and neck cancer. We hypothesized that PET parameters corrected by tumor cellularity (combined PET/MRI parameters) could predict the prognosis. On regional PET, maximum standardized uptake value (SUVmax) was measured as metabolic parameters. In addition, metabolic tumor volume (MTV) and total lesion glycolysis (TLG) were checked as metabolo volumetric parameters. Mean apparent diffusion coefficient (ADCmean) of tumor was evaluated as the MRI parameter on the ADC map. Ratios between metabolic/metabolo volumetric parameters and ADC were calculated as combined PET/MRI parameters. PET, MRI, and combined PET/MRI parameters were compared with clinicopathologic parameters in terms of treatment failure. RESULTS: Seventy-two patients (mean age = 55.9 +/- 14.6 year, M: F = 45: 27) who underwent simultaneous 18F-FDG PET/MRI before head and neck cancer surgery were retrospectively enrolled. Twenty-two patients (30.6%) showed tumor treatment failure after head and neck cancer surgery (mean treatment failure = 13.0 +/- 7.0 months). In the univariate analysis, MTV (P = 0.044) and ratios between metabolo-volumetric parameters and ADC (MTV/ADCmean, P = 0.022; TLG/ADCmean, P = 0.044) demonstrated significance among 18F-FDG PET/MRI parameters. Lymphatic invasion (P = 0.044) and perineural invasion (P = 0.046) revealed significance among clinicopathologic parameters. In the multivariate analysis, MTV (P = 0.026), MTV/ADCmean (P = 0.011), and TLG/ADCmean (P = 0.002) with lymphatic invasion (P = 0.026, 0.026, and 0.044, respectively) showed significance. CONCLUSIONS: Combined PET/MRI parameters (PET metabolo-volumetric parameters corrected by tumor cellularity) could be effective predictors of tumor treatment failure after head and neck cancer surgery in addition to MTV and clinicopathologic parameter. PMID- 29322265 TI - The role of sphingolipids in psychoactive drug use and addiction. AB - Psychoactive drug use is a common behavior in many societies worldwide, frequently associated with drug instrumentalization. Regular use may develop into drug addiction, which is a severe psychiatric disorder with multiple pathological effects to virtually all organ systems. Treatment strategies for addiction are often insufficient with no broadly working pharmaco-treatment available. Recently, lipids, and particularly sphingolipids, have been considered as new mediators in the pathogenic pathways and as possible therapeutic targets for the treatment of addictive states. In our review, we discuss the contribution of sphingolipids in the development of addictive states including alcohol consumption, nicotine, amphetamine, morphine, and cocaine dependencies. Recent data show that the involvement of various classes of sphingolipids, such as sphingomyelins, ceramides, globosides, sulfatides, and cerebrosides, might explain the development of some specific features of addictive states, for example, apoptotic neurodegeneration induced by psychoactive substances. On the other hand, protective effects of sphingolipids are discussed. Sphingolipids might be a key mechanism in the development of beneficial effects of moderate alcohol consumption. Therefore, sphingolipid systems emerge as possible new pathways involved in the development of addiction and its pathophysiological consequences. However, further analysis is still needed to investigate the exact mechanisms of sphingolipid contribution and possibility of using of sphingolipids as new therapeutic targets. PMID- 29322271 TI - Responses of macroinvertebrate communities to pesticide application in irrigated rice fields. AB - The ability to recover to original states after disturbances makes macroinvertebrates useful tools for assessing the impacts of pesticides. Many studies showed that direct exposure to pesticides decreases macroinvertebrate richness and alters their composition. The main objective of this study was to assess recovery patterns in macroinvertebrate communities after pesticide application in irrigated rice fields. We analyzed short-term temporal dynamics of macroinvertebrate communities after application of the herbicides bispyribac sodium and clomazone and the insecticide chlorantraniliprole, over the rice growing season in southern Brazil. We selected three conventional rice fields and the recovery of macroinvertebrate communities was also compared with three adjacent natural ponds. The study was developed from November 2011 to February 2012 (rice-growing season). Five macroinvertebrate collections were carried out 3, 7, 14, 38, and 60 days after pesticide application (November 25). Rice fields showed lower richness and abundance than ponds in the period immediately after pesticide application, and recovery rates in the richness of macroinvertebrate communities were more conspicuous as pesticide residuals dissipated from the fields. Macroinvertebrate community structure in rice fields also became more similar to natural ponds as pesticide traces were scarcer. However, macroinvertebrate abundance patterns were not related to pesticide concentrations in the fields. Our results supported the general hypothesis on the negative effects of pesticide application on macroinvertebrate community in irrigated rice fields, although other environmental features (e.g., length of the flooded period) also contributed to explain temporal dynamics in the macroinvertebrate communities from irrigated rice fields. PMID- 29322272 TI - A novel passerivirus (family Picornaviridae) in an outbreak of enteritis with high mortality in estrildid finches (Uraeginthus sp.). AB - An enteric outbreak with high mortality (34/52, 65.4%) was recorded in 2014 in home-reared estrildid finches (Estrildidae) in Hungary. A novel passerivirus was identified in a diseased violet-eared waxbill using viral metagenomics and confirmed by RT-(q)PCR. The complete genome of finch picornavirus strain waxbill/DB01/HUN/2014 (MF977321) showed the highest amino acid sequence identity of 38.9%, 61.6%, 69.6% in P1cap, 2Chel and 3CproDpol, respectively, to passerivirus A1 (GU182406). A high viral load (6.58 * 1010 genomic copies/ml) was measured in a cloacal specimen and in the tissues (spinal cord, lung, and the intestines) of two additional affected finches. In addition to intestinal symptoms (diarrhoea), the presence of extra-intestinal virus suggests a generalized infection in this fatal disease, for which the passerivirus might be a causative agent. PMID- 29322270 TI - Recent developments in evaluation and treatment of lateral patellar instability. AB - Recent years have been characterized by an ongoing increase in knowledge about the different conditions associated with lateral patellar instability. This increase in knowledge provides differentiated approaches to the various pathologies of the patellofemoral joint. Though current guidelines consider medial patellofemoral ligament (MPFL) reconstruction the basic treatment for the unstable patella, medial soft tissue-stabilizing procedures should not be interpreted as stand-alone procedures in every case. The influence of different anatomical factors leading to patellar instability, as well as their impact on clinical outcome measures, is becoming increasingly apparent and deserves further attention. Therefore, the purpose of this review was to summarize recent developments in lateral patellar instability beyond MPFL reconstruction techniques. For this goal, the literature published within the last 3 years considering all aspects of lateral patellar instability was analysed. Six main topics evolved according to the number of publications and in terms of novel aspects and recent developments in the evaluation and treatment of lateral patellar instability. Those topics formed the basis of this article: (1) treatment of first-time patellar dislocation, (2) the impact of trochlear dysplasia and trochleoplasty procedures, (3) the relevance of torsional deformities, (4) patellar instability in open physis, (5) the implementation of new outcome measures, and (6) rehabilitation after patellar stabilizing procedures. PMID- 29322273 TI - The emerging influenza virus threat: status and new prospects for its therapy and control. AB - Influenza A viruses (IAVs) are zoonotic pathogens that cause yearly outbreaks with high rates of morbidity and fatality. The virus continuously acquires point mutations while circulating in several hosts, ranging from aquatic birds to mammals, including humans. The wide range of hosts provides influenza A viruses greater chances of genetic re-assortment, leading to the emergence of zoonotic strains and occasional pandemics that have a severe impact on human life. Four major influenza pandemics have been reported to date, and health authorities worldwide have shown tremendous progress in efforts to control epidemics and pandemics. Here, we primarily discuss the pathogenesis of influenza virus type A, its epidemiology, pandemic potential, current status of antiviral drugs and vaccines, and ways to effectively manage the disease during a crisis. PMID- 29322274 TI - Evidence of clinical and economic impact of pharmacist interventions related to antimicrobials in the hospital setting. AB - The purpose of this paper was to review the literature regarding the clinical and economic impact of pharmacist interventions (PIs) related to antimicrobials in the hospital setting. A PubMed literature search from January 2003 to March 2016 was conducted using the terms pharmacist* or clinical pharmacist* combined with antimicrobial* or antibiotic* or anti-infective*. Comparative studies that assessed the clinical and/or economic impact of PIs on antimicrobials in the hospital setting were reviewed. Outcomes were classified as: treatment-related outcomes (TROs), clinical outcomes (COs), cost and microbiological outcomes (MOs). Acceptance of pharmacist recommendations by physicians was collected. PIs were grouped into patient-specific recommendations (PSRs), policy, and education. Studies' risk of bias was analyzed using Cochrane's tool. Twenty-three studies were evaluated. All of them had high risk of bias. The design in most cases was uncontrolled before and after. PSRs were included in every study; five also included policy and four education. Significant impact of PI was found in 14 of the 18 studies (77.8%) that evaluated costs, 15 of the 20 studies (75.0%) that assessed TROs, 12 of the 22 studies (54.5%) that analyzed COs, and one of the two studies (50.0%) that evaluated MOs. None of the studies found significant negative impact of PIs. It could not be concluded that adding other strategies to PSRs would improve results. Acceptance of recommendations varied from 70 to 97.5%. Pharmacists improve TROs and COs, and decrease costs. Additional research with a lower risk of bias is unlikely to change this conclusion. Future research should focus on identifying the most efficient interventions. PMID- 29322275 TI - Outcome of polymerase chain reaction (PCR) analysis in 100 suspected cases of infectious uveitis. AB - BACKGROUND: Polymerase chain reaction (PCR) analysis is an important tool in the diagnosis of infectious uveitis. A retrospective, interventional study of PCR analysis of ocular fluid in suspected infectious uveitis cases between January 2014 to July 2016 was done. Nested, real-time and broad range PCR was performed for detection of the genome of Mycobacterium tuberculosis, herpes virus family, Chikungunya virus, Toxoplasma gondii, fungus, eubacterium and propionibacterium acne. RESULTS: Total of 100 cases included, mean age was 39.2 +/- 15.4 years. Uveitis was unilateral in 82% and granulomatous in 40%. Mean visual acuity at the initial visit and final visit was 0.73 logMar and 0.63 logMar respectively. PCR analysis confirmed the clinical diagnosis in 70.1% patients. The sensitivity, specificity, positive predictive value and negative predictive value of PCR analysis was 90.2%, 93.9%, 93.9% and 90.2% respectively. The quantitative value of real-time M. tb. Positive PCR ranged from 32c/ml to 2722 c/ml. CONCLUSIONS: PCR assay is an accurate technique with high sensitivity and specificity to diagnose the DNA genome in infectious uveitis. PMID- 29322276 TI - Integrating direct observation and GPS tracking to monitor animal behavior for resource management. AB - Monitoring the behavior of pack animals in protected areas informs management about use patterns and the potential associated negative impacts. However, systematic assessments of behavior are uncommon due to methodological and logistical constraints. This study integrated behavior mapping with GPS tracking, and applied behavior change point analysis, as an approach to monitor the behaviors of pack animals during overnight periods. The integrated approach identified multiple grazing patterns (i.e., locally intense grazing, ambulatory grazing) not feasible through a single methodology alone. Monitoring behavior and corresponding environmental conditions aid managers in implementing strategies designed to mitigate impacts associated with pack animals in natural areas. Results also contrast the influence of temporal scale on behavior segmentation to inform decisions for further monitoring and management of domestic animal use and impacts in natural areas. This integrated approach reduced time and logistical constraints of each method individually to promote ongoing monitoring and highlight how multiple management tactics could reduce impacts to sensitive habitats. PMID- 29322277 TI - Language Delay and Externalizing Problems in Preschool Age: A Prospective Cohort Study. AB - This study sought to examine the direction of causation between language delay and two externalizing problems; inattention and aggression. Autoregressive fixed effects models were fitted to data from 25,474 children (age 1.5 to 5 years; 50.8% boys) in the population-based longitudinal Norwegian Mother and Child Cohort Study (MoBa), to model the direction of causality for language delay and inattention and aggression, respectively. The most parsimonious model for the relationship between language delay and inattention was one where both common factors and reciprocal causation were estimated. Adjusted for common factors, language delay was estimated to have a non-significant effect on inattention by b = 0.12 (p = 0.06), and inattention to have a significant effect on language delay by b = 0.19 (p = 0.03). The most parsimonious model for the direction of causality for language delay and aggression was one where the entire association could be explained by language delay having effect on aggression b = 0.12 (p < 0.02). It appears that while language delay can best be conceptualized as an epiphenomenon of inattention partly related to both common factors and causal processes, aggression can best be conceptualized as caused by language delay. This illumination of the hypothetical causal links between two common problem domains in preschool-aged children has clear implications on where to implement interventions to prevent co-occurrence of language delay and externalizing problems. PMID- 29322278 TI - Impacts of chronic non-communicable diseases on households' out-of-pocket healthcare expenditures in Sri Lanka. AB - This article examines the effects of chronic non-communicable diseases (NCDs) on households' out-of-pocket health expenditures in Sri Lanka. We explore the disease specific impacts on out-of-pocket health care expenses from chronic NCDs such as heart diseases, hypertension, cancer, diabetics and asthma. We use nationwide cross-sectional household income and expenditure survey 2012/2013 data compiled by the department of census and statistics of Sri Lanka. Employing propensity score matching method to account for selectivity bias, we find that chronic NCD affected households appear to spend significantly higher out-of pocket health care expenditures and encounter grater economic burden than matched control group despite having universal public health care policy in Sri Lanka. The results also suggest that out-of-pocket expenses on medicines and other pharmaceutical products as well as expenses on medical laboratory tests and other ancillary services are particularly higher for households with chronic NCD patients. The findings underline the importance of protecting households against the financial burden due to NCDs. PMID- 29322279 TI - Do the more educated utilize more health care services? Evidence from Vietnam using a regression discontinuity design. AB - In 1991, Vietnam implemented a compulsory primary schooling reform that provides this study a natural experiment to estimate the causal effect of education on health care utilization with a regression discontinuity design. This paper finds that education causes statistically significant impacts on health care utilization, although the signs of the impacts change with specific types of health care services examined. In particular, education increases the inpatient utilization of the public health sector, but it reduces the outpatient utilization of both the public and private health sectors. The estimates are strongly robust to various windows of the sample choice. The paper also discovers that the links between education and the probability of health insurance and income play essential roles as potential mechanisms to explain the causal impact of education on health care utilization in Vietnam. PMID- 29322281 TI - Carbon dioxide absorbents: does it matter which one you use? PMID- 29322282 TI - 1st UK Interdisciplinary Breast Cancer Symposium-15th-16th January 2018. PMID- 29322283 TI - Rational design of engineered microbial cell surface multi-enzyme co-display system for sustainable NADH regeneration from low-cost biomass. AB - As an important cofactor, NADH is essential for most redox reactions and biofuel cells. However, supply of exogenous NADH is challenged, due to the low production efficiency and high cost of NADH regeneration system, as well as low stability of NADH. Here, we constructed a novel cell surface multi-enzyme co-display system with ratio- and space-controllable manner as exogenous NADH regeneration system for the sustainable NADH production from low-cost biomass. Dockerin-fused glucoamylase (GA) and glucose dehydrogenase (GDH) were expressed and assembled on the engineered bacterial surfaces, which displayed protein scaffolds with various combinations of different cohesins. When the ratio of GA and GDH was 3:1, the NADH production rate of the whole-cell biocatalyst reached the highest level using starch as substrate, which was three times higher than that of mixture of free enzymes, indicating that the highly ordered spatial organization of enzymes would promote reactions, due to the ratio of enzymes and proximity effect. To confirm performance of the established NADH regeneration system, the highly efficient synthesis of L-lactic acid (L-LA) was conducted by the system and the yield of L-LA (16 g/L) was twice higher than that of the mixture of free enzymes. The multi-enzyme co-display system showed good stability in the cyclic utilization. In conclusion, the novel sustainable NADH system would provide a cost-effective strategy to regenerate cofactor from low-cost biomass. PMID- 29322284 TI - Identification of Concepts of Spiritual Care in Iranian Peoples with Multiple Sclerosis: A Qualitative Study. AB - Living with multiple sclerosis (MS) often needs attention combined with receiving the holistic care. Attention to spiritual care dimension is one of the most important aspects of care for these patients. This study aims at exploring and explaining dimensions of spiritual care for MS patients in care system of Iran. This study is conducted to explore the concept of spiritual care in care system of Iran during 2015-2016. Purposive sampling is done on 25 participants through unstructured interviews and observation of obtained data through conventional content analysis approach. Four themes of participants' experiences in spiritual care include restoration of identity essence and nature; disease as a factor for nearness to God; giving meaning to life; and disease as a facilitator for self purification. Clear understanding of spiritual care dimensions and promoting knowledge in MS nurses as the caregivers play important roles in achieving the goals of health among patients in different cultures and religions. Given the results of this study, the themes such as the restoration of identity essence and nature, the disease as a factor for nearness to God, giving meaning to life and the disease as a facilitator for self-purification play important roles in explaining the concept of spiritual care in patients with MS. Therefore, the MS nurses and other health professionals need to effectively and successfully integrate the concept of spiritual care with their professional performance by deep understanding of this concept and try to provide holistic care to respond to MS patients' intertwined needs. PMID- 29322280 TI - Direct cardiovascular impact of SGLT2 inhibitors: mechanisms and effects. AB - Diabetes is a global epidemic and a leading cause of death with more than 422 million patients worldwide out of whom around 392 million alone suffer from type 2 diabetes (T2D). Sodium-glucose cotransporter 2 inhibitors (SGLT2i) are novel and effective drugs in managing glycemia of T2D patients. These inhibitors gained recent clinical and basic research attention due to their clinically observed cardiovascular protective effects. Although interest in the study of various SGLT isoforms and the effect of their inhibition on cardiovascular function extends over the past 20 years, an explanation of the effects observed clinically based on available experimental data is not forthcoming. The remarkable reduction in cardiovascular (CV) mortality (38%), major CV events (14%), hospitalization for heart failure (35%), and death from any cause (32%) observed over a period of 2.6 years in patients with T2D and high CV risk in the EMPA-REG OUTCOME trial involving the SGLT2 inhibitor empagliflozin (Empa) have raised the possibility that potential novel, more specific mechanisms of SGLT2 inhibition synergize with the known modest systemic improvements, such as glycemic, body weight, diuresis, and blood pressure control. Multiple studies investigated the direct impact of SGLT2i on the cardiovascular system with limited findings and the pathophysiological role of SGLTs in the heart. The direct impact of SGLT2i on cardiac homeostasis remains controversial, especially that SGLT1 isoform is the only form expressed in the capillaries and myocardium of human and rodent hearts. The direct impact of SGLT2i on the cardiovascular system along with potential lines of future research is summarized in this review. PMID- 29322285 TI - A Longitudinal Study of Religiosity, Spiritual Health Locus of Control, and Health Behaviors in a National Sample of African Americans. AB - The present longitudinal study examined religious beliefs and behaviors, spiritual health locus of control (SHLOC), and selected health-related behaviors and outcomes in a national sample of 766 African American adults. Participants were interviewed by telephone three times over a 5-year period. Results indicated that stronger religious beliefs and religious behaviors were associated with greater changes in active SHLOC. There was some evidence of direct effects of religious beliefs and behaviors on changes in health behaviors. Religious behaviors were related to greater passive SHLOC over time across some health outcomes. Passive SHLOC was associated with some less desirable health outcomes over time. PMID- 29322287 TI - Metaplastic Breast Cancer: Practice Patterns, Outcomes, and the Role of Radiotherapy. AB - PURPOSE: Metaplastic breast cancer (MBC) is a rare, aggressive form of breast cancer with limited data to guide management. This study of a large, contemporary US database described national practice patterns and addressed the impact of radiotherapy (RT) on survival. METHODS: The National Cancer Data Base was queried (2004-2013) for women with non-metastatic MBC. Multivariable logistic regression ascertained factors associated with RT administration. Kaplan-Meier analysis evaluated overall survival (OS) between patients treated with either lumpectomy or mastectomy with or without RT, while substratifying patients into pT1-2N0 and pT3-4/N+ subcohorts. Cox proportional hazards modeling determined variables associated with OS. RESULTS: Of 5211 total patients, 447 (9%) had lumpectomy alone, 1831 (35%) had post-lumpectomy RT, 2020 (39%) had mastectomy alone, and 913 (18%) had post-mastectomy RT (PMRT). Most patients underwent chemotherapy (79%), and mastectomy was the most common surgical approach (56%). RT delivery was impacted by many factors, including higher nodal disease (p < 0.001), but not T classification or estrogen receptor status (p > 0.05 for both). Post-lumpectomy RT was associated with higher OS in both the pT1-2N0 and pT3-4/N+ subsets (p < 0.001 for both), while PMRT was associated with OS benefits in pT3-4/N+ cases (p < 0.001), but not in pT1-2N0 cases (p = 0.259). CONCLUSIONS: In the largest study to date evaluating MBC, practice patterns of surgery, systemic therapy, and RT are described. The addition of RT in the post-lumpectomy setting was associated with higher OS, in addition to pT3-4/N+ in the post-mastectomy setting. Although not implying causation, further work is required to corroborate the conclusions herein. PMID- 29322288 TI - An Exploration of How Simulated Gambling Games May Promote Gambling with Money. AB - Portable media devices, such as smartphones, have allowed gambling related content to infiltrate into a new market of potential consumers. Simulated gambling products are now readily available through multiple online platforms, and are becoming a popular form of entertainment for many young media users. Despite widespread use of these products, very little is known about how continued exposure to and involvement with simulated gambling may impact on real money gambling attitudes and behaviours, particularly for young consumers. This paper reviews the literature exploring simulated gambling products and how consumption may promote monetary gambling, as well as fostering pro-gambling attitudes among youth and adolescents. Findings suggest that youth are highly exposed to simulated gambling games, and those who engage with these products are also more likely to be prone to monetary gambling and gambling problems. Virtual currency, in-game events and gambling themed content are also likely to promote biases about gambling or desensitise consumers to monetary losses. Simulated gambling products may therefore pose a risk to consumers, and particularly young consumers, rather than serve as a benign substitute for monetary gambling. To date, research has largely focused on correlational relationships between simulated and monetary gambling using cross-sectional methodologies. Future research should focus on determining the causal pathway between simulated gambling involvement and monetary gambling in order to identify and manage any risk associated simulated gambling participation. PMID- 29322289 TI - The Interaction Between Asthma and Anxiety: An Interpretative Phenomenological Analysis of Young People's Experiences. AB - Asthma and anxiety are highly co-morbid, and their interaction leads to exacerbations for both conditions. This study explored the interplay between these two conditions from the perspective of children and adolescents. The objective was to identify potential mechanisms of interaction between asthma and anxiety, and to derive improvements for prevention and treatment. Eleven semi structured interviews of young people (aged 11-15), who met criteria for both asthma and anxiety, were analysed using interpretative phenomenological analysis. Well-established qualitative research recommendations were followed to promote credibility and rigour in the findings. Eight themes emerged that were organised in three domains: (i) asthma affecting anxiety by inhibiting coping activities or developmental tasks and by triggering unhelpful thinking and behaviour; (ii) anxiety affecting asthma by impairing self-care and triggering hyperventilation; (iii) interactions between asthma and anxiety, including self-perpetuating feedback cycles and symptom confusion. The proposed mechanisms could help tailor cognitive-behavioural interventions to reduce anxiety and asthma complications. PMID- 29322286 TI - Hyperglycemia and aberrant O-GlcNAcylation: contributions to tumor progression. AB - A number of cancer types have shown an increased prevalence and a higher mortality rate in patients with hyperglycemic associated pathologies. Although the correlation between diabetes and cancer incidence has been increasingly reported, the underlying molecular mechanisms beyond this association are not yet fully understood. Recent studies have suggested that high glucose levels support tumor progression through multiple mechanisms that are hallmarks of cancer, including cell proliferation, resistance to apoptosis, increased cell migration and invasiveness, epigenetic regulation (hyperglycemic memory), resistance to chemotherapy and altered metabolism. Most of the above occur because hyperglycemia through hexosamine biosynthetic pathway leads to aberrant O GlcNAcylation of many intracellular proteins that are involved in those mechanisms. Deregulated O-GlcNAcylation is emerging as a general feature of cancer. Despite strong evidence suggesting that aberrant O-GlcNAcylation is or may be involved in the acquisition of all cancer hallmarks, it remains out of the list of the next generation of emerging hallmarks. Here, we discuss some of the current understanding on how hyperglycemia affects cancer cell biology and how aberrant O-GlcNAcylation stands in this context. PMID- 29322290 TI - Psychologists and Pediatricians in the Primary Care Sandbox: Communication is Key to Cooperative Play. AB - Recent literature, public policy, and funding opportunities call attention to the need for better increased integration of health and mental health care services in primary care settings so as to best meet the needs of children and families. There are many benefits to such integration, but pediatric primary care providers (PCPs) face multiple barriers to identifying and managing patients with mental health difficulties. One way to address this problem is through the integration of psychologists into primary care settings who can collaborate with PCPs to provide integrated behavioral health care to youth and families. However, there are challenges to collaboration, which include differences in training, professional cultures, and expectations held by professionals from various disciplines. Effective communication is a key component in supporting interprofessional collaboration between primary care providers and psychologists working in primary care settings. This paper reviews aspects of pediatric medicine culture, critical components of communication, and strategies to improve communication. Three case examples are presented in which some of these challenges have been successfully addressed. Implications and future directions are discussed. PMID- 29322291 TI - Personality Pathology in Primary Care: Ongoing Needs for Detection and Intervention. AB - Recent studies demonstrate that personality disorders are prevalent within outpatient psychiatry clinics, though they also are quite common in primary care settings. Studies across multiple health care settings demonstrate that those with a known PD have higher incidences of health problems, higher utilization of the health care system, and have a life expectancy 17.7 years less than that of the population in general. Despite these data, little attention has been directed toward detecting, managing, and treating patients with personality pathology in primary care settings. Consequently, it is argued that more attention be devoted to detecting PDs in this population, training physicians and primary care professionals in the rapid screening of personality pathology, the management of patients with personality pathology, and utilizing behavioral health specialists and reliable referral sources to address these problems as part of their overall health care management. Suggestions for how to implement these ideas are offered. PMID- 29322293 TI - Correction to: CALB-Catalyzed Two-Step Alcoholytic Desymmetrization of 3 Methylglutaric Diazolides in MTBE. AB - The original version of this article unfortunately contained a mistake in Eq. 3. PMID- 29322292 TI - Bilateral symmetrical comparison of the proximal femur using 3D-CT models. AB - PURPOSE: Superimposed three-dimensional (3D)-models obtained from CT-images have been used to evaluate displacement of femoral neck fractures, but this method assumes symmetrical anatomy of normal femurs. The present study aimed to compare the spatial orientation of the left and right proximal femur, thus establishing if 3D models can be used as a reference standard for the evaluation of fracture displacement. METHODS: We generated 3D-CT-models of 20 patients with no skeletal pathology of the proximal femurs. Three observers independently determined the positions of the fovea and the femoral head, and a vector intersecting the centre points of the fovea and the femoral head defined the rotation. Differences in positions and rotations were determined by superimposing the 3D-CT-models of both femurs. RESULTS: The mean distance (95% CI) between positions of the left and right fovea was 3.1 mm (2.7-3.4) and between the left and right femoral head 2.8 mm (2.6-3.0). The minimal detectable change was 2.8 for the fovea and 2.3 for the femoral head, and the repeatability coefficients between 2.1-2.7 and 1.0-2.9, respectively. Mean difference in rotation of the femoral head was 6 degrees (5.3 6.6) with a minimal detectable change of 8.8 and repeatability coefficients ranging from 5.8 to 10.0. CONCLUSIONS: Distances between the left and right femoral heads were larger than what could be explained by measurement error alone, suggesting that there may be minor side-to-side differences. However, these differences are small, and 3D-CT-models can be used as a reference standard to evaluate displacement of femoral neck fractures. PMID- 29322295 TI - Correction to: Epidemiology of chronic hepatitis B virus in Ireland using routinely collected surveillance and administrative data, 2004-2014. AB - The original version contained a mistake. The published version of this article incorrectly lists Lelia Thornton as Thornton Thornton. The correct author name is presented above. PMID- 29322294 TI - Ticagrelor inhibits platelet-tumor cell interactions and metastasis in human and murine breast cancer. AB - Activated platelets promote the proliferation and metastatic potential of cancer cells. Platelet activation is largely mediated through ADP engagement of purinergic P2Y12 receptors on platelets. We examined the potential of the reversible P2Y12 inhibitor ticagrelor, an agent used clinically to prevent cardiovascular and cerebrovascular events, to reduce tumor growth and metastasis. In vitro, MCF-7, MDA-MB-468, and MDA-MB-231 human mammary carcinoma cells exhibited decreased interaction with platelets treated with ticagrelor compared to untreated platelets. Prevention of tumor cell-platelet interactions through pretreatment of platelets with ticagrelor did not improve natural killer cell mediated tumor cell killing of K562 myelogenous leukemia target cells. Additionally, ticagrelor had no effect on proliferation of 4T1 mouse mammary carcinoma cells co-cultured with platelets, or on primary 4T1 tumor growth. In an orthotopic 4T1 breast cancer model, ticagrelor (10 mg/kg), but not clopidogrel (10 mg/kg) or saline, resulted in reduced metastasis and improved survival. Ticagrelor treatment was associated with a marked reduction in tumor cell platelet aggregates in the lungs at 10, 30 and 60 min post-intravenous inoculation. These findings suggest a role for P2Y12-mediated platelet activation in promoting metastasis, and provide support for the use of ticagrelor in the prevention of breast cancer spread. PMID- 29322296 TI - Catheter-directed, ultrasound-facilitated fibrinolysis in obese patients with massive and submassive pulmonary embolism. AB - Obesity is a well-established risk factor for pulmonary embolism (PE). However, treatment of PE in obese patients is challenging because of limited outcomes data, especially with advanced therapies such as catheter-based fibrinolysis. We assessed the efficacy and safety of ultrasound-facilitated, catheter-directed fibrinolysis in obese patients with submassive and massive PE enrolled in the SEATTLE II Trial. Eligible patients had a right ventricular-to-left ventricular (RV/LV) diameter ratio >= 0.9 on chest computed tomography (CT). The primary efficacy outcome was the change in chest CT-measured RV/LV diameter ratio at 48 h after procedure initiation. The primary safety outcome was GUSTO major bleeding within 72 h. One-hundred and four patients were obese, as defined by a BMI >= 30 kg/m2, and 44 were non-obese. Mean RV/LV ratio was greater in obese patients at baseline compared with non-obese patients (1.60 vs. 1.43, p = 0.02). Reduction in RV/LV diameter ratio at 48 h was greater in obese patients compared with non obese patients (absolute reduction: - 0.47 vs. - 0.30, p = 0.01; relative reduction: - 26 vs. - 18%, p = 0.03). Major bleeding occurred in 12 (12%) of obese patients and in 3 (7%) in non-obese patients (p = 0.55). In conclusion, ultrasound-facilitated, catheter-directed fibrinolysis shows promise in obese patients for whom advanced therapy for acute PE is warranted. PMID- 29322297 TI - Nuclear distribution of the Trypanosoma cruzi RNA Pol I subunit RPA31 during growth and metacyclogenesis, and characterization of its nuclear localization signal. AB - Trypanosoma cruzi is the aetiologic agent of Chagas disease. Our research group studies ribosomal RNA (rRNA) gene transcription and nucleolus dynamics in this species of trypanosomes. RPA31 is an essential subunit of RNA polymerase I (Pol I) whose presence is apparently restricted to trypanosomes. Using fluorescent tagged versions of this protein (TcRPA31-EGFP), we describe its nuclear distribution during growth and metacyclogenesis. Our findings indicate that TcRPA31-EGFP alters its nuclear presence from concentrated nucleolar localization in exponentially growing epimastigotes to a dispersed granular distribution in the nucleoplasm of stationary epimastigotes and metacyclic trypomastigotes. These changes likely reflect a structural redistribution of the Pol I transcription machinery in quiescent cellular stages where downregulation of rRNA synthesis is known to occur. In addition, and related to the nuclear internalization of this protein, the presence of a classical bipartite-type nuclear localization signal was identified towards its C-terminal end. The functionality of this motif was demonstrated by its partial or total deletion in recombinant versions of the tagged fluorescent protein. Moreover, ivermectin inhibited the nuclear localization of the labelled chimaera, suggesting the involvement of the importin alpha/beta transport system. PMID- 29322298 TI - A new microsporidium Fibrillaspora daphniae g. n. sp. n. infecting Daphnia magna (Crustacea: Cladocera) in Siberia and its taxonomic placing within a new family Fibrillasporidae and new superfamily Tubulinosematoidea (Opisthosporidia: Microsporidia). AB - Infection with a new microsporidium, Fibrillaspora daphniae g. n. sp. n., was found in a local Daphnia magna population in Tomsk region (Western Siberia, Russia) at the prevalence rate of 52%. Histological sections showed parasite cells entirely encompassing the host haemocoel. Methanol-fixed spores were elongate, oval, 4.8 +/- 0.3 MUm * 2.3 +/- 0.2 MUm in size. All developmental stages were in direct contact with the host cell cytoplasm, with single nuclei, and division by binary fission. The sporont surface was covered with an additional outer layer composed of fine tubules. The spores possessed a thick endospore, large posterior vacuole filled with electron-dense granules, and a bipartite polaroplast composed of anterior lamellar and posterior globular elements. The polar tube was slightly anisofilar, with 13-19 coils arranged in one row; the two posterior coils were of lesser diameter. The small subunit ribosomal RNA gene sequence was deposited in Genbank under accession # MF278272. Considering the sister relationship between Fibrillanosema crangonycis and our new isolate described here as Fibrillaspora daphniae, we propose a new family Fibrillasporidae fam. n. to contain these two genera and the descendants of their common ancestor. A new superfamily Tubulinosematoidea superfam. n. is proposed as a monophyletic assemblage of Fibrillasporidae fam. n. and Tubulinosematidae. PMID- 29322299 TI - Serum Parathyroid Hormone and 25-Hydroxyvitamin D Concentrations Before and After Biliopancreatic Diversion. AB - BACKGROUND: Biliopancreatic diversion with duodenal switch (BPD-DS) decreases vitamin D and calcium absorption, which may result in secondary hyperparathyroidism. This study aimed at evaluating the prevalence of vitamin D deficiency and secondary hyperparathyroidism before and after BPD-DS. METHODS: A retrospective analysis of patients who had undergone BPD-DS at a tertiary bariatric center between 2003 and 2010 and for whom simultaneous measurements of serum 25-hydroxyvitamin D and parathyroid hormone were available within 5 years post-op was performed. The prevalence of vitamin D deficiency (< 20 ng/ml) and secondary hyperparathyroidism (> 65 pg/mL) at different time points was calculated. RESULTS: Included were 1436 patients (mean +/- SD, age 42.7 +/- 10.4 years; BMI 51.5 +/- 8.6 kg/m2; 69.8% women). Prevalence of vitamin D deficiency decreased up to 6-12 months after surgery (from 35.8% at baseline down to 6-9%) then rose progressively, plateauing at 15.5% after 36 months. Prevalence of hyperparathyroidism was 28.5% before surgery and rose progressively after surgery, reaching 68.6% at 5 years. Mean serum corrected calcium increased from 0 to 6 months then decreased up to 36 months. Preoperatively, the prevalence of hypocalcemia was 7.3%. It increased after 12 months, attaining 26.9% at 48 months. CONCLUSIONS: Prevalence of vitamin D deficiency and secondary hyperparathyroidism is high before BPD-DS. Despite a low prevalence of vitamin D deficiency after surgery, prevalence of hyperparathyroidism increased steadily 1 year after surgery, preceded by a decrease in serum calcium. Factors explaining the high prevalence of secondary hyperparathyroidism after BPD-DS and its long term impact on bone health should be addressed. PMID- 29322300 TI - Glycemic control in type 2 diabetes: from medication nonadherence to residual vascular risk. AB - Despite the availability of many new treatment options for type 2 diabetes, the proportion of patients achieving the HbA1c target < 7.0% remains around 50%. We put forward the hypothesis that the unchanged HbA1c results, observed in the last decade in type 2 diabetes patients, are also a consequence of medication nonadherence and clinical inertia. Poor medication-taking behavior is usually defined as medication nonadherence and is responsible for uncontrolled hemoglobin A1c level in 23% of cases. Medication nonadherence may also affect clinical outcomes, as diabetic patients with good adherence (>=80%) had a significant 10% lower rate of hospitalization events and a significant 28% lower rate of all cause mortality when compared with patients with poor adherence (<80%). Residual vascular risk may be defined as the risk of macrovascular (major cardiovascular events) and microvascular (retinopathy, nephropathy, neuropathy) complications that remains after intensive and successful glycemic control in type 2 diabetes. For major cardiovascular events, risk reduction following intensive glycemic control is 9% and, therefore, residual vascular risk is 91%. For microvascular complications, as nephropathy, residual vascular risk is as high as 80%. Residual vascular risk remains high in type 2 diabetes despite intensive glycemic control. Medication nonadherence by the diabetic patient and clinical inertia by the clinician may have contributed to the high level of residual vascular risk (both macro and microvascular) of type 2 diabetic patients. PMID- 29322302 TI - The Superiority of Sucrose Cushion Centrifugation to Ultrafiltration and PEGylation in Generating High-Titer Lentivirus Particles and Transducing Stem Cells with Enhanced Efficiency. AB - Viral gene delivery is hailed as a great milestone in gene-based therapeutic approaches. The human immunodeficiency virus-derived lentiviral vectors (LVs) are advantageous in infecting both dividing and non-dividing cells leading to continuous expression of transgenes. A variety of protocols are available for concentration of LVs. We primarily generated our internal ribosome entry site (IRES)-based LVs. Virus titration and transduction efficiency were compared between various strategies that included sucrose cushion centrifugation (SCC), protein column ultrafiltration and polyethylene glycol precipitation. Among these approaches, SCC resulted in concentration of high-titer EGFP-expressing lentivirus (1.4 +/- 0.3 * 109 TU/ml) with the lowest protein impurities. Further, we examined transduction strengths of our three methods on two challenging stem cells. Both human NT2 and mouse bone marrow-derived mesenchymal stem cells demonstrated high transduction using SCC of 65 +/- 2.8 and 49 +/- 0.8%, respectively. Finally, lentivirus particles harboring IRES-based transfer vectors of specific genes, concentrated by SCC, integrated into host genome. Taken together, development of cost-effective and efficient concentration strategies such as our SCC method is yet highly demanded to broaden the horizons of lentivirus application in clinical and translational research. PMID- 29322301 TI - Effects of short-term DHEA intake on hormonal responses in young recreationally trained athletes: modulation by gender. AB - BACKGROUND: Dehydroepiandrosterone (DHEA) figures on the World Anti-Doping Agency list of prohibited substances in sport because it is assumed that athletes expect a significant increase in testosterone through DHEA administration. The literature on the hormonal effects of DHEA intake nevertheless appears to be very scant in healthy young subjects, especially women. PURPOSE: We examined the effects of DHEA on adrenal and gonadal hormones, IGF1 and free T3 in healthy young male and female recreationally trained volunteers. METHODS: The study followed a double-blind, randomized-order crossover design. Lean healthy young men (n = 10) and women (n = 11), with all women using oral contraceptives, were treated daily with 100 mg of DHEA and placebo for 4 weeks. DHEA, DHEA-sulfate (DHEA-S), androstenedione, total testosterone (Tes), dihydrotestosterone (DHT), SHBG, estrone, cortisol, IGF1, and free T3 were measured before, in the middle and at the end of each treatment, as were blood glucose, liver transaminases and lipid status. RESULTS: We observed a significant increase in DHEA, DHEA-S, androstenedione, Tes, DHT, and estrone in both men and women in the middle and at the end of DHEA treatment, but the increase in Tes was more marked in women (p < 0.001) than men (p < 0.05). No changes were found in the other parameters, irrespective of gender. CONCLUSION: In young athletes, DHEA administration induces significant blood hormonal changes, some modulated by gender, which can be used as biomarkers of doping. PMID- 29322303 TI - Salt tolerance of two perennial grass Brachypodium sylvaticum accessions. AB - KEY MESSAGE: We studied the salt stress tolerance of two accessions isolated from different areas of the world (Norway and Tunisia) and characterized the mechanism(s) regulating salt stress in Brachypodium sylvaticum Osl1 and Ain1. Perennial grasses are widely grown in different parts of the world as an important feedstock for renewable energy. Their perennial nature that reduces management practices and use of energy and agrochemicals give these biomass crops advantages when dealing with modern agriculture challenges such as soil erosion, increase in salinized marginal lands and the runoff of nutrients. Brachypodium sylvaticum is a perennial grass that was recently suggested as a suitable model for the study of biomass plant production and renewable energy. However, its plasticity to abiotic stress is not yet clear. We studied the salt stress tolerance of two accessions isolated from different areas of the world and characterized the mechanism(s) regulating salt stress in B. sylvaticum Osl1, originated from Oslo, Norway and Ain1, originated from Ain-Durham, Tunisia. Osl1 limited sodium transport from root to shoot, maintaining a better K/Na homeostasis and preventing toxicity damage in the shoot. This was accompanied by higher expression of HKT8 and SOS1 transporters in Osl1 as compared to Ain1. In addition, Osl1 salt tolerance was accompanied by higher abundance of the vacuolar proton pump pyrophosphatase and Na+/H+ antiporters (NHXs) leading to a better vacuolar pH homeostasis, efficient compartmentation of Na+ in the root vacuoles and salt tolerance. Although preliminary, our results further support previous results highlighting the role of Na+ transport systems in plant salt tolerance. The identification of salt tolerant and sensitive B. sylvaticum accessions can provide an experimental system for the study of the mechanisms and regulatory networks associated with stress tolerance in perennials grass. PMID- 29322305 TI - Construction of mammographic examination process ontology using bottom-up hierarchical task analysis. AB - Describing complex mammography examination processes is important for improving the quality of mammograms. It is often difficult for experienced radiologic technologists to explain the process because their techniques depend on their experience and intuition. In our previous study, we analyzed the process using a new bottom-up hierarchical task analysis and identified key components of the process. Leveraging the results of the previous study, the purpose of this study was to construct a mammographic examination process ontology to formally describe the relationships between the process and image evaluation criteria to improve the quality of mammograms. First, we identified and created root classes: task, plan, and clinical image evaluation (CIE). Second, we described an "is-a" relation referring to the result of the previous study and the structure of the CIE. Third, the procedural steps in the ontology were described using the new properties: "isPerformedBefore," "isPerformedAfter," and "isPerformedAfterIfNecessary." Finally, the relationships between tasks and CIEs were described using the "isAffectedBy" property to represent the influence of the process on image quality. In total, there were 219 classes in the ontology. By introducing new properties related to the process flow, a sophisticated mammography examination process could be visualized. In relationships between tasks and CIEs, it became clear that the tasks affecting the evaluation criteria related to positioning were greater in number than those for image quality. We developed a mammographic examination process ontology that makes knowledge explicit for a comprehensive mammography process. Our research will support education and help promote knowledge sharing about mammography examination expertise. PMID- 29322307 TI - A Psychiatry Resident's Perspective of the "Virtual Preceptor" as an Electronic Medical Record Clinical Education Support Tool. PMID- 29322308 TI - Quality of Life of Patients with Type 1 Diabetes Mellitus Using Insulin Analog Glargine Compared with NPH Insulin: A Systematic Review and Policy Implications. AB - INTRODUCTION: Insulin analog glargine (GLA) has been available as one of the therapeutic options for patients with type 1 diabetes mellitus to enhance glycemic control. Studies have shown that a decrease in the frequency of hypoglycemic episodes improves the quality of life (QoL) of diabetic patients. However, there are appreciable acquisition cost differences between different insulins. Consequently, there is a need to assess their impact on QoL to provide future guidance to health authorities. METHOD: A systematic review of multiple databases including Medline, LILACS, Cochrane, and EMBASE databases with several combinations of agreed terms involving randomized controlled trials and cohorts, as well as manual searches and gray literature, was undertaken. The primary outcome measure was a change in QoL. The quality of the studies and the risk of bias was also assessed. RESULTS: Eight studies were eventually included in the systematic review out of 634 publications. Eight different QoL instruments were used (two generic, two mixed, and four specific), in which the Diabetes Treatment Satisfaction Questionnaire (DTSQ) was the most used. The systematic review did not consistently show any significant difference overall in QoL scores, whether as part of subsets or combined into a single score, with the use of GLA versus neutral protamine Hagedorn (NPH) insulin. Only in patient satisfaction measured by DTSQ was a better result consistently seen with GLA versus NPH insulin, but not using the Well-being Inquiry for Diabetics (WED) scale. However, none of the cohort studies scored a maximum on the Newcastle-Ottawa scale for quality, and they generally were of moderate quality with bias in the studies. CONCLUSION: There was no consistent difference in QoL or patient-reported outcomes when the findings from the eight studies were collated. In view of this, we believe the current price differential between GLA and NPH insulin in Brazil cannot be justified by these findings. PMID- 29322309 TI - The Global Spine Care Initiative: a summary of guidelines on invasive interventions for the management of persistent and disabling spinal pain in low- and middle-income communities. AB - PURPOSE: The purpose of this study was to synthesize recommendations on the use of common elective surgical and interventional procedures for individuals with persistent and disabling non-radicular/axial with or without myelopathy, radicular back pain, cervical myelopathy, symptomatic spinal stenosis, and fractures due to osteoporosis. This review was to inform a clinical care pathway on the patient presentations where surgical interventions could reasonably be considered. METHODS: We synthesized recommendations from six evidence-based clinical practice guidelines and one appropriate use criteria guidance for the surgical and interventional management of persistent and disabling spine pain. RESULTS: Lower priority surgery/conditions include fusion for lumbar/non radicular neck pain and higher priority surgery/conditions include discectomy/decompressive surgery for cervical or lumbar radiculopathy, cervical myelopathy, and lumbar spinal stenosis. Epidural steroid injections are less expensive than most surgeries with fewer harms; however, benefits are small and short lived. Vertebroplasty should be considered over kyphoplasty as an option for patients with severe pain and disability due to osteoporotic vertebral compression fracture. CONCLUSION: Elective surgery and interventional procedures could be limited in medically underserved areas and low- and middle-income countries due to a lack of resources and surgeons and thus surgical and interventional procedures should be prioritized within these settings. There are non-invasive alternatives that produce similar outcomes and are a recommended option where surgical procedures are not available. These slides can be retrieved under Electronic Supplementary Material. PMID- 29322310 TI - Relationship between sagittal spinal curves geometry and isokinetic trunk muscle strength in adults. AB - PURPOSE: Sagittal spinal deviation has been reported to be a significant musculoskeletal problem affecting both genders and could develop at any age. Factors triggering this issue are still not well defined. The purpose of this study was to investigate the relationship between sagittal spine angles and isokinetic peak, average torque, and power of trunk muscles in asymptomatic adults. METHODS: A convenient sample of 79 subjects with asymptomatic spine participated in this study. Thoracic and lumbar curves angles were measured using the Formetric 4D device. Thoracolumbar (T/L) ratio was calculated as an indicator of spine balance. Isokinetic peak and average torque and average power for trunk flexors and extensors were measured at 60 degrees /s in seated and semi-standing test positions. RESULTS: Lumbar curve angle was moderately inversely correlated (p < 0.001) with peak extension torque (rho = - 0.532 and - 0.495 in seated and semi-standing positions, respectively) and peak flexion torque (rho = - 0.604 and - 0.542 in seated and semi-standing positions, respectively). The T/L ratio was found to be significantly associated (p < 0.001) with trunk extension torque (rho = 0.422 and 0.378 in seated and semi-standing positions, respectively) and trunk flexion torque (rho = 0.396 and 0.321 in seated and semi-standing positions, respectively). Similarly, average torque and power measurements were significantly correlated with lumbar curve angle and T/L ratio. CONCLUSIONS: Sagittal spine balance is associated with trunk muscles strength in adults, particularly, the lumbar spine muscles. Therefore, assessment of sagittal spinal balance and trunk muscles strength should be taken into consideration when designing rehabilitation programs for correction of sagittal spine curvature. PMID- 29322304 TI - Causative Genes in Amyotrophic Lateral Sclerosis and Protein Degradation Pathways: a Link to Neurodegeneration. AB - Amyotrophic lateral sclerosis (ALS) is a disease caused by the degeneration of motor neurons (MNs) leading to progressive muscle weakness and atrophy. Several molecular pathways have been implicated, such as glutamate-mediated excitotoxicity, defects in cytoskeletal dynamics and axonal transport, disruption of RNA metabolism, and impairments in proteostasis. ALS is associated with protein accumulation in the cytoplasm of cells undergoing neurodegeneration, which is a hallmark of the disease. In this review, we focus on mechanisms of proteostasis, particularly protein degradation, and discuss how they are related to the genetics of ALS. Indeed, the genetic bases of the disease with the implication of more than 30 genes associated with familial ALS to date, together with the important increase in understanding of endoplasmic reticulum (ER) stress, proteasomal degradation, and autophagy, allow researchers to better understand the mechanisms underlying the selective death of motor neurons in ALS. It is clear that defects in proteostasis are involved in this type of cellular degeneration, but whether or not these mechanisms are primary causes or merely consequential remains to be clearly demonstrated. Novel cellular and animal models allowing chronic expression of mutant proteins, for example, are required. Further studies linking genetic discoveries in ALS to mechanisms of protein clearance will certainly be crucial in order to accelerate translational and clinical research towards new therapeutic targets and strategies. PMID- 29322311 TI - Minimally invasive transforaminal lumbar interbody fusion with unilateral pedicle screw fixation (UNILIF): morbidity, clinical and radiological 2-year outcomes of a 66-patient prospective series. AB - PURPOSE: To assess clinical and radiological outcomes at 2-year follow-up of one level minimally invasive transforaminal interbody fusion with unilateral pedicle screw fixation (UNILIF) in the treatment of stable lumbar degenerative diseases. METHODS: From January 1, 2012 to January 31, 2013, we prospectively collected clinical and radiological data on patients with stable degenerative lumbar disease managed by UNILIF in a single institution. Preoperatively and at 2 years, we recorded ODI, SF-12, Quebec and VAS. Interbody fusion was analyzed on radiography and on a CT scan, and sagittal balance was tested on full spine radiography. RESULTS: Mean operation time was 74.5 min +/- 16.8, mean blood loss was 130.8 ml +/- 210.9. At 2 years, ODI, SF-12, Quebec and VAS were significantly improved (p > 0.005).The fusion rate was 96.8% on radiographic analysis and was 87.9% on CT scan analysis. CONCLUSIONS: One-level UNILIF constitutes an effective alternative for management of stable lumbar degenerative diseases. These slides can be retrieved under Electronic Supplementary Material. PMID- 29322312 TI - Assessment of curve progression on children with idiopathic scoliosis using ultrasound imaging method. AB - PURPOSE: To investigate the threshold of the curve difference on ultrasound measurement relative to the previous radiographic measurements to detect curves progression in children who have idiopathic scoliosis (IS). METHODS: Two hundred children with IS (F:170, M:30; mean age: 14.6 +/- 1.9) were recruited from a single center. A retrospective study on comparing the current ultrasound measurements with the previous radiographic measurements with threshold values from 3 degrees to 8 degrees to detect curve progression was conducted. The receiver operating characteristic (ROC) analysis, accuracy (ACC), and odd ratio (OR) were calculated to determine the optimal threshold value of the curve differences between ultrasound and previous radiographic measurement. RESULTS: Both thresholds of 4 degrees and 5 degrees for curve difference from ultrasound scans presented the sensitivities >= 0.90 and specificities >= 0.85, and can reduce by 73 and 79% of radiographs on the studied subjects, respectively. Especially, for 4 degrees threshold, the negative likelihood ratio (LR-) was only 0.08, which indicated that there is only 8% probability that the subject has progressed if the US measurement detected non-progression. CONCLUSIONS: The ultrasound imaging method can be applied to identify curve progression in children with IS. Four degree is the preferred threshold value to detect the curve which had progressed, since it also had the lower rate of undetected progressed cases (false negatives). PMID- 29322314 TI - Cognitive impairment is associated with elevated serum homocysteine levels among older adults. AB - PURPOSE: The aim of this study was to examine the associations between the risk of cognitive impairment and the serum levels of folate, vitamin B12, and homocysteine (Hcy). METHODS: Subjects were persons aged 60-79 years who participated in the Yangpyeong Cohort study between 2011 and 2012. Cognitive impairment and normal subjects consisted of 100 pairs of old adults matched by age, sex, and education levels. Cognitive function was evaluated with the Korean version of the Mini-Mental State Examination for Dementia Screening (MMSE-DS). Pearson's partial correlation coefficients and conditional multiple logistic regression analysis were applied to determine the associations between cognitive function and the serum levels of folate, vitamin B12, and Hcy. RESULTS: Compared with the matched normal group, the cognitive impairment group had higher proportions of folate deficiency (< 3 ng/mL) and hyperhomocysteinemia (>= 15 umol/L). Serum Hcy concentrations were inversely associated with serum folate (r = - 0.234, p = 0.001) and MMSE-DS score (r = - 0.150, p = 0.037) after adjusting for age, sex, and education. The high Hcy group showed a higher prevalence of cognitive impairment (4th vs. 1st quartile, OR 3.30, 95% CI 1.12-9.72, p for trend = 0.014) after adjusting for exercise. CONCLUSIONS: The present findings suggest a putative protective role of high serum folate and normal Hcy against cognitive impairment among older adults. PMID- 29322313 TI - Implantation of an empty polyetheretherketone cage in anterior cervical discectomy and fusion: a prospective randomised controlled study with 2 years follow-up. AB - PURPOSE: To compare the clinical outcomes, radiographic results and fusion rate of ACDF between empty PEEK cages and PEEK cages packed with beta-tricalcium phosphate. METHODS: Forty-five patients were prospectively enrolled with cervical degenerative disc disease who requiring ACDF with a PEEK cage. 23 patients were randomised to the study group (empty cages) and 22 patients were in the control group (cages filled with beta-tricalcium phosphate). Both patient groups were fixed with a cervical locking plate. A CT scan was performed 12 months postoperatively and 24 months if not confirmed fused at 12 months to evaluate the status of fusion. Clinical status was evaluated using the Japanese Orthopaedic Association (JOA) score, the Oswestry Disability Index (ODI) and the Visual Analogue Scale (VAS). RESULTS: 46 levels (97.88%) in the study group and 44 levels (97.77%) in the control group were confirmed as fused at 24 months. There was no significant difference between the fusion rates observed in the study and control groups (p = 0.82). There was no significant difference in JOA, ODI, or VAS scores at 24 months follow-up. The results showed that the members of the non fusion group tended to be older than the individuals in the fusion group at 12 months, but was not significant in statistics. CONCLUSIONS: Similar fusion rates and clinical outcomes were achieved when using ACDF with PEEK cages and instrumentation, regardless of whether the cage was filled with bone substitute at 24 months follow-up. Fusion rates improved over time and are comparable between both groups. These slides can be retrieved under Electronic Supplementary material. PMID- 29322315 TI - Effects of a casein hydrolysate versus intact casein on gastric emptying and amino acid responses. AB - PURPOSE: Milk proteins and/or their hydrolysates have been reported to have beneficial effects for improving postprandial glycaemia. Gastric emptying is a major determinant of postprandial glycaemia, yet limited studies have examined the effects of intact milk proteins compared to hydrolysates on gastric emptying. We investigated gastric emptying of a casein hydrolysate compared to intact casein. METHODS: Nine overweight and obese adults (mean +/- SD age: 59.5 +/- 6.5 years and BMI 28.4 +/- 2.6 kg/m2) were studied in a randomised crossover design. Gastric emptying was assessed by paracetamol absorption test, with HPLC-MS being used for determining paracetamol and its primary metabolites in plasma. Glucose, insulin and amino acid responses were also assessed. RESULTS: Linear mixed model analysis showed no effect of treatment [F(1, 55) = 2.1, P = 0.16] or treatment * time interactions [F(6, 54) = 1.5, P = 0.21] for paracetamol concentrations. In addition, there were no significant differences between the intact casein and hydrolysate for any of the gastric emptying outcome measures (Cmax, AUC0-30min, AUC0-60min; AUC0-240min). However, insulin was increased in the early postprandial period (iAUC0-15min, iAUC0-30min; P < 0.05) and there was a treatment effect for glucose [F(1, 53) = 5.3, P = 0.03] following the casein hydrolysate compared to intact casein. No significant differences in amino acids were found between the two conditions. CONCLUSIONS: Gastric emptying of a casein hydrolysate compared to intact casein does not differ. Mechanisms other than gastric emptying, for example the presence of a bioactive peptide sequence, may contribute to the glycaemic management effects of certain milk protein hydrolysates and warrant further investigation. PMID- 29322316 TI - Intentional binding of visual effects. AB - When an action produces an effect, the effect is perceived earlier in time compared to a stimulus without preceding action. This temporal bias is called intentional binding (IB) and serves as an implicit measure of sense of agency. Typically, IB is investigated by presenting a rotating clock hand while participants execute an action and perceive a resulting tone. Participants are asked to estimate the time point of tone onset by referring to the clock hand position. This time point estimate is compared to a time point estimate of a tone in a condition in which the tone occurs without preceding action. Studies employing this classic clock paradigm employed auditory action effects. We modified this paradigm to investigate potential IB of visual action effects, and, additionally, to investigate how IB differs for visual action effects (Experiment 1) in comparison to auditory action effects (Experiment 2). Our results show that, like the IB of an auditory effect, the time point of a visual action effect is shifted toward the causing action, and that the size of the IB depends on the delay duration of the effect. Comparable to auditory action effects, earlier action effects showed stronger IB compared to later action effects. Yet overall IB of the visual effects was weaker than IB of the auditory effects. As IB is seen as an indicator of sense of agency, this may have important implications for the design of human-machine interfaces. PMID- 29322317 TI - Probabilistic versus "Pure" Volitional Orienting: a Monocular Difference. AB - Human volitional orienting is typically assessed using Posner's endogenous cuing task. As a volitional process, the literature has long emphasized the role of neocortical structures in this higher cognitive function. Based on recent data, we explored the possibility that subcortical channels may have a functional role in volitional orienting as measured by a Posner cuing task in which a nonspatial feature of a centrally presented cue is predictively related to the location of the target. In addition, we have compared this typical cuing task to a "purer" version, which does not involve the probability manipulation. A sensitive behavioral method was used to probe the contribution of monocular channels (mostly subcortical) in the two types of endogenous orienting tasks. In both tasks, a spatially informative cue and its ensuing target were presented to the same or different eyes at varying cue-target intervals. In the typically used endogenous task, the onset of facilitation was apparent earlier when the cue and target were presented to the same eye. In contrast, in the "pure" task no difference was found between the two eye-of-origin conditions. These data support the notion that endogenous facilitation, as measured in the typical Posner cuing task, involves lower monocular regions. Hence, in the typical endogenous task, which was developed to explore "volitional" orienting, a simple associative learning mechanism might elicit monocular, rapid orienting responses. Notably, the typical volitional orienting paradigm might be contaminated by simple contingency benefits and thus may not provide a pure measure of volitional processes. PMID- 29322318 TI - Total knee arthroplasty with unexplained pain: new insights from kinematics. AB - INTRODUCTION: Up to 20% of total knee arthroplasty patients remain unsatisfied post-surgery, and a large proportion of them report anterior knee pain. This study aims to verify whether patients who experience anterior knee pain after total knee arthroplasty (TKA) will exhibit kinematic characteristics similar to those associated with patellofemoral syndrome, including in the frontal and transverse planes. MATERIALS AND METHODS: Using four different assessment methods [radiological, patient-reported outcome, musculoskeletal assessment with functional performance testing, and a 3D kinematic assessment during gait], the clinical and 3D knee kinematic profiles of three groups were compared: a painful and an asymptomatic TKA group and a healthy control group. All three groups underwent a three-dimensional kinematic knee assessment while walking on a treadmill. Prosthetic component rotation was assessed through a CT scan measurement performed by one experienced radiologist. Flexion/extension, ab/adduction, and tibial internal rotation curves were compared, and significant differences were highlighted through ANCOVA analysis performed on SPSS. RESULTS: A total of 62 knees were evaluated, 24 asymptomatic, 21 painful, and 17 control. A dynamic flexion contracture during gait was observed in the painful group, which was associated with a lack of flexibility of the thigh muscles. Moreover, painful TKA cases exhibited a valgus alignment (- 1.5 degrees ) during stance, which increases the Q angle and lateralizes the patella. Finally, CT scan evaluation of painful total knee arthroplasty patients revealed that their combined components rotation was in slight internal rotation (- 1.4 degrees , SD 7.0 degrees ). CONCLUSIONS: Painful TKA patients presented three well-known characteristics that tend to increase patellofemoral forces and that could be the cause of the unexplained pain: a stiff knee gait, a valgus alignment when walking, and combined TKA components slightly internally rotated. PMID- 29322319 TI - Intraoperative three-dimensional imaging in the treatment of distal radius fractures. AB - INTRODUCTION: In operative treatment of distal radius fractures satisfying outcome mainly relies on anatomical fracture reduction and correct implant placement. Examination with two-dimensional fluoroscopy may not provide reliable information about this. The aim of this study was to determine the effectiveness of additional intraoperative three-dimensional imaging in the operative treatment of comminuted distal radius fractures. MATERIALS AND METHODS: From August 2001 to June 2015, patients with a distal radius fracture who were treated operatively and received intraoperative three-dimensional scan were included. The findings of the three-dimensional scan were documented by the operative surgeon and analyzed retrospectively with regard to incidence and the need for intraoperative revisions. Clinical evaluation included the patient's medical history, the injury pattern of the affected wrist (according to the OTA/AO fracture classification) and concomitant injuries. Intraoperative and postoperative complications and revision surgeries were evaluated as well. RESULTS: Of 4515 operatively treated distal radius fractures, 307 (6.8%) received additional intraoperative three dimensional imaging during surgery. 263 of 307 patients (85.7%) had a distal radius fracture type C. Intraoperative three-dimensional imaging revealed findings in 125 patients (40.7%) that were not detected on conventional two dimensional fluoroscopy. In 54 patients (17.6%) these findings led to an immediate revision. Most commonly, revision was done in the case of remaining steps in the articular surface >= 1 mm (n = 25, 8.1%) followed by intra-articular screw placement (n = 23, 7.5%). CONCLUSIONS: Intraoperative three-dimensional imaging can provide additional information compared to conventional two dimensional fluoroscopy in the operative treatment of distal radius fractures with the possibility of immediate intraoperative revision. PMID- 29322320 TI - Is there a relationship between the load distribution on the tibial plateau and hip knee ankle angle after TKA? AB - INTRODUCTION: This study asked whether differences in coronal alignment after total knee arthroplasty (TKA) affect the load distribution on the tibial plateau. The aim of this study was to investigate the correlation between coronal alignment and the load distribution on the tibial plateau after TKA, using three dimensional multi-detector-row-computed tomography (3D-MDCT). MATERIALS AND METHODS: In this study, we performed 84 cementless TKA with porous tantalum modular tibial component (PTMT) and divided into three groups based on post operative hip-knee-ankle (HKA) angle: varus alignment group (n = 22), (176 degrees ?) neutral alignment group (n = 45), (180 degrees +/- 3 degrees ), and valgus alignment group (n = 17) (184 degrees ?).The changes in bone quality parameters of trabecular patterns under peg of PTMT were interpreted as load distribution due to changes in alignment. The relationship between HKA angle and load distribution on the tibial plateau was analyzed every 6 months for 4.5 years by measuring Bone marrow contents/tissue volumes (mg/cm3) and bone volumes/tissue volumes (%) under peg of porous tantalum modular tibial component by visualizing three dimensionally with 3D-osteo-morphometry software. RESULTS: There were no correlations between HKA angle and the load distribution on the tibial plateau after TKA at all periods. There was a significantly higher increase in the medial region than the lateral about the BMC/TV and BV/TV values, regardless of the post operative alignment after TKA for all periods. The relative BMC/TV and BV/TV changes at medial region in varus alignment group were significantly lower than the neutral and the valgus alignment groups of pre-operative medial osteoarthritis of the knee. CONCLUSIONS: As far, it can be concluded by the study and the methods used therein that there were no relationships between the load distribution on the tibial plateau and HKA angle after TKA. LEVEL OF EVIDENCE: Therapeutic study, Level III. PMID- 29322321 TI - Polyphagy by omnivory: scavenging improves performance of a polyphagous caterpillar on marginal hosts. AB - Few species of insect herbivores are highly polyphagous, but those few species are disproportionately ecologically and economically important and include many of the most destructive crop pests. Common correlates of extreme polyphagy across insects include the related behaviors of cannibalism and omnivory, though any functional consequences of these behaviors on the host range are unknown. I hypothesized that omnivory may allow these insects to exploit marginal hosts successfully (an expansion of realized niche). Using the polyphagous pest caterpillar, Heliothis virescens, I tested the polyphagy by omnivory hypothesis using ten host plants of varying suitability and small quantities of insect carrion. Caterpillars which were allowed omnivory had increased performance on lower-quality hosts; this treatment raised survival, growth rate, and pupal mass over controls on a strictly plant diet. Omnivory allowed successful development on two plants that caterpillars could not exploit alone a potential niche expansion. This effect was limited, however: (1) on high-quality hosts, omnivory did not improve performance, and (2) omnivory on poor hosts did not increase growth rate or pupal mass to levels matching the most suitable hosts and it could not permit exploitation of a completely unpalatable plant. Omnivory may therefore be an important (and overlooked) factor in determining the success of generalist insect herbivores in a variety of ecological settings. PMID- 29322322 TI - Functional traits can improve our understanding of niche- and dispersal-based processes. AB - Ecologists often determine the relative importance of niche- and dispersal-based processes via variation partitioning based on species composition. Functional traits and their proxies of phylogeny are expected to increase the detection of niche-based processes and reduce the unexplained variation relative to species identity. We collected eight adult tree traits and phylogenetic data of 41 species and employed a phylogenetic fuzzy weighting method to address this issue in a 9-ha temperate forest dynamics plot. We used redundancy analysis to relate species, phylogenetic and functional compositions to environmental (soil resources and topography) and spatial variables. We also performed multi-scaled analyses on spatial variables by adding environment as the covariates to determine if functional traits increase the detection of niche-based processes at broad scales. The functional traits and intraspecific variation of the wood density among ontogenetic stages could dramatically increase the detection of niche-based processes and reduce the unexplained variation relative to species identity. Phylogenetic and functional compositions were mainly driven by total soil P and elevation, while species composition was weakly affected by multiple environmental variables. After controlling for the environment, a larger amount of the compositional variations in seed mass and maximum height were explained by finer-scaled spatial variables, indicating that dispersal processes may be important at fine spatial scales. Our results suggested that considering functional traits and their intraspecific variations could improve our understanding of ecological processes and increase our ability to predict the responses of plants to environmental change. PMID- 29322323 TI - Arbuscular mycorrhizal fungi and associated microbial communities from dry grassland do not improve plant growth on abandoned field soil. AB - After abandonment of agricultural fields, some grassland plant species colonize these sites with a frequency equivalent to dry grasslands (generalists) while others are missing or underrepresented in abandoned fields (specialists). We aimed to understand the inability of specialists to spread on abandoned fields by exploring whether performance of generalists and specialists depended on soil abiotic and/or biotic legacy. We performed a greenhouse experiment with 12 species, six specialists and six generalists. The plants were grown in sterile soil from dry grassland or abandoned field inoculated with microbial communities from one or the other site. Plant growth, abundance of mycorrhizal structures and plant response to inoculation were evaluated. We focused on arbuscular mycorrhizal fungi (AMF), one of the most important parts of soil communities affecting plant performance. The abandoned field soil negatively affected plant growth, but positively affected plant response to inoculation. The AMF community from both sites differed in infectivity and taxa frequencies. The lower AMF taxa frequency in the dry grassland soil suggested a lack of functional complementarity. Despite the fact that dry grassland AMF produced more arbuscules, the dry grassland inoculum did not improve phosphorus nutrition of specialists contrary to the abandoned field inoculum. Inoculum origin did not affect phosphorus nutrition of generalists. The lower effectiveness of the dry grassland microbial community toward plant performance excludes its inoculation in the abandoned field soil as a solution to allow settlement of specialists. Still, the distinct response of specialists and generalists to inoculation suggested that they differ in AMF responsiveness. PMID- 29322324 TI - Molecular mapping of qBK1 WD , a major QTL for bakanae disease resistance in rice. AB - BACKGROUND: Bakanae or foot rot disease is a prominent disease of rice caused by Gibberella fujikuroi. This disease may infect rice plants from the pre-emergence stage to the mature stage. In recent years, raising rice seedlings in seed boxes for mechanical transplanting has increased the incidence of many seedling diseases; only a few rice varieties have been reported to exhibit resistance to bakanae disease. In this study, we attempted to identify quantitative trait loci (QTLs) conferring bakanae disease resistance from the highly resistant japonica variety Wonseadaesoo. RESULTS: A primary QTL study using the genotypes/phenotypes of the recombinant inbred lines (RILs) indicated that the locus qBK1 WD conferring resistance to bakanae disease from Wonseadaesoo was located in a 1.59 Mb interval delimited on the physical map between chr01_13542347 (13.54 Mb) and chr01_15132528 (15.13 Mb). The log of odds (LOD) score of qBK1 WD was 8.29, accounting for 20.2% of the total phenotypic variation. We further identified a gene pyramiding effect of two QTLs, qBK WD and previously developed qBK1. The mean proportion of healthy plant for 31 F4 RILs that had no resistance genes was 35.3%, which was similar to that of the susceptible check variety Ilpum. The proportion of healthy plants for the lines with only qBK WD or qBK1 was 66.1% and 55.5%, respectively, which was significantly higher than that of the lines without resistance genes and that of Ilpum. The mean proportion of the healthy plant for 15 F4 RILs harboring both qBK WD and qBK1 was 80.2%, which was significantly higher than that of the lines with only qBK WD or qBK1. CONCLUSION: Introducing qBK WD or pyramiding the QTLs qBK WD and qBK1 could provide effective tools for breeding rice with bakanae disease resistance. To our knowledge, this is the first report on a gene pyramiding effect that provides higher resistance against bakanae disease. PMID- 29322325 TI - Histochemical evidence of IGF2 mRNA-binding protein 2-mediated regulation of osteoclast function and adhesive ability. AB - Insulin-like growth factor 2 (IGF2) messenger RNA-binding proteins (IMPs) are a family of oncofetal RNA-binding proteins that play important roles in cell migration, renewal, and metabolism. IMP2 gene expression may be important in determining IGF2 levels and might, thereby, be central to bone metabolism. In our present study, IMP2-deficient mice exhibited more immature bone structures, characterized by abundant residual cartilage cores; growth plates containing more rich cartilage matrix, which was arranged irregularly; and a significantly thicker hypertrophic chondrocyte layer in the femoral metaphysis, compared with wild-type mice. These abnormalities were associated with profound effects on the size and morphology of osteoclasts. Specifically, the osteoclasts exhibited various polymorphisms, failed to form resorption lacunae, and were detached from the bone surface. Consistent with these findings, IMP2 deficiency reduced the expression of two important proteases (cathepsin K and matrix metallopeptidase 9) as well as that of C-SRC, a critical regulator of ruffled border formation in osteoclasts, indicating impaired osteoclastic activity. IMP2-deficient mice also displayed inhibited osteoclast adhesion owing to defects in the CD44-osteopontin signaling pathway. In summary, we used IMP2-deficient mice as a model to determine whether IMP2 plays a role during bone metabolism. Our results indicate that IMP2 deficiency delayed bone remodeling by significantly inhibiting the activity of osteoclasts and impairing their adhesion. PMID- 29322326 TI - Heparan sulfate accumulation and perlecan/HSPG2 up-regulation in tumour tissue predict low relapse-free survival for patients with glioblastoma. AB - Glycosaminoglycans are major components of brain extracellular matrix (ECM), although heparan sulfate (HS) contribution in brain physiology and carcinogenesis remains underinvestigated. This study examined HS content and distribution in glioblastoma multiforme (GBM) tissues in the context of potential molecular mechanisms underlying its deregulation in brain tumours. Totally, 42 tissue samples and paraffin-embedded tissues for 31 patients with different prognosis were investigated. HS expression was demonstrated in 50-55% of the GBM tumours by immunohistochemistry (IHC), while almost no HS content was detected in the surrounding paratumourous brain tissues. Heterogeneous HS distribution in the HS positive tumours was more related to the necrosis or glandular-like brain zones rather than glioma cells with high or low Ki-67 index. According the Kaplan-Meier curves, HS accumulation in glioma cells was associated with low relapse-free survival (RS) of the GBM patients (p < 0.05) and was likely to be due to the increased transcriptional activity of HSPG core proteins (syndecan-1, 2-3 fold; glypican-1, 2,5 fold; perlecan/HSPG2, 13-14 fold). Activation of perlecan/HSPG2 expression correlated with the patients' survival according Kaplan-Meier (p = 0.0243) and Cox proportional-hazards regression (HR = 3.1; P(Y) = 0.03) analyses, while up-regulation of syndecan-1 and glypican-1 was not associated with the patients survival. Taken together, the results indicate that increase of HS content and up-regulation of perlecan/HSPG2 expression in glioblastoma tissues contribute to tumour development through the transformation of brain extracellular matrix into tumour microenvironment, and represent negative prognostic factors for glioblastoma progression. PMID- 29322327 TI - Combined and sequential liver-kidney transplantation in children. AB - Combined and sequential liver-kidney transplantation (CLKT and SLKT) is a definitive treatment in children with end-stage organ failure. There are two major indications: - terminal insufficiency of both organs, or - need for transplanting new liver as a source of lacking enzyme or specific regulator of the immune system in a patient with renal failure. A third (uncommon) option is secondary end-stage renal failure in liver transplant recipients. These three clinical settings use distinct qualification algorithms. The most common indications include primary hyperoxaluria type 1 (PH1) and autosomal recessive polycystic kidney disease (ARPKD), followed by liver diseases associated with occasional kidney failure. Availability of anti-C5a antibody (eculizumab) has limited the validity of CLKT in genetic atypical hemolytic uremic syndrome (aHUS). The liver coming from the same donor as renal graft (in CLKT) is immunologically protective for the kidney and this provides long-term rejection free follow-up. No such protection is observed in SLKT, when both organs come from different donors, except uncommon cases of living donation of both organs. Overall long-term outcome in CLKT in terms of graft survival is good and not different from isolated liver or kidney transplantation, however patient survival is inferior due to complexity of this procedure. PMID- 29322329 TI - In Vitro Validation of a Numerical Simulation of Leaflet Kinematics in a Polymeric Aortic Valve Under Physiological Conditions. AB - This paper describes a computational method to simulate the non-linear structural deformation of a polymeric aortic valve under physiological conditions. Arbitrary Lagrangian-Eulerian method is incorporated in the fluid-structure interaction simulation, and then validated by comparing the predicted kinematics of the valve's leaflets to in vitro measurements on a custom-made polymeric aortic valve. The predicted kinematics of the valve's leaflets was in good agreement with the experimental results with a maximum error of 15% in a single cardiac cycle. The fluid-structure interaction model presented in this study can simulate structural behaviour of a stented valve with flexible leaflets, providing insight into the haemodynamic performance of a polymeric aortic valve. PMID- 29322328 TI - Vaccination titres pre- and post-transplant in paediatric renal transplant recipients and the impact of immunosuppressive therapy. AB - BACKGROUND: Avoidance of vaccine-preventable infections in paediatric renal allograft recipients is of utmost importance. However, the development and maintenance of protective vaccination titres may be impaired in this patient population owing to their need for immunosuppressive medication. METHODS: In the framework of the Cooperative European Paediatric Renal Transplant Initiative (CERTAIN), we therefore performed a multi-centre, multi-national study and analysed vaccination titres pre- and post-transplant in 155 patients with serial titre measurements in comparison with published data in healthy children. RESULTS: The percentage of patients with positive vaccination titres before renal transplantation (RTx) was low, especially for diphtheria (38.5%, control 75%) and pertussis (21.3%, control 96.3%). As few as 58.1% of patients had a hepatitis B antibody (HBsAb) titre >100 IU/L before RTx. 38.1% of patients showed a vaccination titre loss post-transplant. Patients with an HBsAb titre between 10 and 100 IU/L before RTx experienced a significantly (p < 0.05) more frequent hepatitis B vaccination titre loss post-transplant than patients with an HBsAb titre >100 IU/L. The revaccination rate post-transplant was low and revaccination failed to induce positive titres in a considerable number of patients (27.3 to 83.3%). Treatment with rituximab was associated with a significantly increased risk of a vaccination titre loss post-transplant (odds ratio 4.26, p = 0.033). CONCLUSIONS: These data show a low percentage of patients with positive vaccination titres pre-transplant, a low revaccination rate post-transplant with limited antibody response, and a high rate of vaccination titre losses. PMID- 29322330 TI - Answering letter to remark of Dr's Frank and Fitzgerald. PMID- 29322331 TI - Correction to: Magnetic resonance imaging for clinical management of rectal cancer: Updated recommendations from the 2016 European Society of Gastrointestinal and Abdominal Radiology (ESGAR) consensus meeting. AB - The article Magnetic resonance imaging for clinical management of rectal cancer: Updated recommendations from the 2016 European Society of Gastrointestinal and Abdominal Radiology (ESGAR) consensus meeting, written by [SSS AuthorNames SSS]. PMID- 29322332 TI - Evaluation of age-dependent morphometrics of the meniscofemoral ligaments in reference to the posterior cruciate ligament in routine MRI. AB - OBJECTIVES: To quantify the morphological correlation between the posterior cruciate ligament (PCL) and the meniscofemoral ligaments (MFLs), to propose normal ranges for different age populations, and to define guidelines for correct identification and differentiation of MFLs in routine MRI. METHODS: Three hundred forty-two subjects were included retrospectively and subdivided into five age groups. Morphometrics of the PCL and the MFLs were measured on standard MRI in the sagittal, coronal, and axial planes. Student's t test, Mann-Whitney U test, and ANOVA and Kruskal-Wallis tests with Bonferroni correction were used for comparison. RESULTS: The MFLs did not vary significantly between sexes (p > 0.05) or in those older than 10 years (p > 0.05). Longitudinal MFL growth is completed before age 11 years, with cross-sectional area (CSA) increasing until age 20. The CSA of the PCL was significantly (p = 0.028) larger in knees without a pMFL (Mdn = 39.7 mm2) than with a pMFL (Mdn = 35.4 mm2). MFLs were more often detected on sagittal than coronal images. CONCLUSIONS: This study describes the morphometric relation between the PCL and the MFLs on routine MRI. When reporting imaging findings in preparation for arthroscopic knee surgery, evaluation of MFLs, first in the sagittal and then the coronal plane, will achieve the best results. KEY POINTS: * The MFLs and the PCL have distinct morphological patterns throughout life. * These patterns show intimate anatomical relationships and a potential biomechanical impact. * Those patterns and relationships can be quantified with MRI. * A correlation exists between age and morphometrics of the MFLs. * Recommendations for correct identification of the MFLs are provided. PMID- 29322333 TI - Whole-body ultra-low dose CT using spectral shaping for detection of osteolytic lesion in multiple myeloma. AB - OBJECTIVES: The aim of this study was to investigate the radiation dose and image quality of a whole-body low-dose CT (WBLDCT) using spectral shaping at 100 kV (Sn 100 kV) for the assessment of osteolytic lesions in patients with multiple myeloma. METHODS: Thirty consecutive patients were retrospectively selected, who underwent a WBLDCT on a third-generation dual-source CT (DSCT) (Sn 100 kV, ref. mAs: 130). They were matched with patients, who were examined on a second generation DSCT with a standard low-dose protocol (100 kV, ref. mAs: 111). Objective and subjective image quality, radiation exposure as well as the frequency of osteolytic lesions were evaluated. RESULTS: All scans were of diagnostic image quality. Subjective overall image quality was significantly higher in the study group (p = 0.0003). Objective image analysis revealed that signal intensities, signal-to-noise ratio and contrast-to-noise ratio of the bony structures were equal or significantly higher in the control group. There was no significant difference in the frequency of osteolytic lesions (p = 0.259). The median effective dose of the study protocol was significantly lower (1.45 mSv vs. 5.65 mSv; p < 0.0001). CONCLUSION: WBLDCT with Sn 100 kV can obtain sufficient image quality for the depiction of osteolytic lesions while reducing the radiation dose by approximately 74%. KEY POINTS: * Spectral shaping using tin filtration is beneficial for whole-body low-dose CT * Sn 100 kV yields sufficient image quality for depiction of osteolytic lesions * Whole-body low-dose CT can be performed with a median dose of 1.5 mSv. PMID- 29322335 TI - Mechanobiological modeling of endochondral ossification: an experimental and computational analysis. AB - Long bone formation starts early during embryonic development through a process known as endochondral ossification. This is a highly regulated mechanism that involves several mechanical and biochemical factors. Because long bone development is an extremely complex process, it is unclear how biochemical regulation is affected when dynamic loads are applied, and also how the combination of mechanical and biochemical factors affect the shape acquired by the bone during early development. In this study, we develop a mechanobiological model combining: (1) a reaction-diffusion system to describe the biochemical process and (2) a poroelastic model to determine the stresses and fluid flow due to loading. We simulate endochondral ossification and the change in long bone shapes during embryonic stages. The mathematical model is based on a multiscale framework, which consisted in computing the evolution of the negative feedback loop between Ihh/PTHrP and the diffusion of VEGF molecule (on the order of days) and dynamic loading (on the order of seconds). We compare our morphological predictions with the femurs of embryonic mice. The results obtained from the model demonstrate that pattern formation of Ihh, PTHrP and VEGF predict the development of the main structures within long bones such as the primary ossification center, the bone collar, the growth fronts and the cartilaginous epiphysis. Additionally, our results suggest high load pressures and frequencies alter biochemical diffusion and cartilage formation. Our model incorporates the biochemical and mechanical stimuli and their interaction that influence endochondral ossification during embryonic growth. The mechanobiochemical framework allows us to probe the effects of molecular events and mechanical loading on development of bone. PMID- 29322334 TI - Detection of beta-lactamase encoding genes in feces, soil and water from a Brazilian pig farm. AB - beta-lactam antibiotics are widely used for the treatment of different types of infections worldwide and the resistance to these antibiotics has grown sharply, which is of great concern. Resistance to beta-lactams in gram-negative bacteria is mainly due to the production of beta-lactamases, which are classified according to their functional activities. The aim of this study was to verify the presence of beta-lactamases encoding genes in feces, soil, and water from a Brazilian pig farm. Different beta-lactamases encoding genes were found, including blaCTX-M-Gp1, blaCTX-M-Gp9, blaSHV, blaOXA-1-like, blaGES, and blaVEB. The blaSHV and blaCTX-M-Gp1 genes have been detected in all types of samples, indicating the spread of beta-lactam resistant bacteria among farm pigs and the environment around them. These results indicate that beta-lactamase encoding genes belonging to the cloxacillinase, ESBL, and carbapenemase and they have high potential to spread in different sources, due to the fact that genes are closely related to mobile genetic elements, especially plasmids. PMID- 29322336 TI - Correction to: Meta-analysis of adjunctive dexamethasone to improve clinical outcome of bacterial meningitis in children. AB - The original version of this article unfortunately contained an error. PMID- 29322337 TI - IVH scoring system. PMID- 29322338 TI - The oscillatory flow of the cerebrospinal fluid in the Sylvian aqueduct and the prepontine cistern measured with phase contrast MRI in children with hydrocephalus-a preliminary report. AB - INTRODUCTION: Recognizing patients with ventriculomegaly who are at risk of developing acute hydrocephalus presents a challenge for the clinician. The association between disturbed cerebrospinal fluid flow (CSF) and impaired brain compliance may play a role in the pathogenesis of hydrocephalus. Phase contrast MRI is a noninvasive technique which can be used to assess CSF parameters. The aim of the work is to evaluate the effectiveness of phase contrast MRI in recognizing patients at risk of acute hydrocephalus, based on measuring the pulsatile CSF flow parameters in the Sylvian aqueduct and prepontine cistern in children with ventriculomegaly. AIM: The aim of the work is to characterize the parameters of cerebrospinal fluid (CSF) flow in the Sylvian aqueduct and prepontine cistern in children with ventriculomegaly with regard to patient age and symptoms. We hypothesize that the relationship between CSF flow parameters in these two regions will vary according to analyzed factors and it will allow to recognize children at risk of hydrocephalus. MATERIALS AND METHODS: A group of 26 children with ventriculomegaly (five girls and 21 boys) underwent phase contrast MRI examinations (Philips 3T Achieva with Q-flow integral application). Amplitudes of average and peak velocities of the CSF flow through the Sylvian aqueduct and prepontine cistern were used to calculate ratios of oscillation and peak velocities, respectively. The relationship between the oscillation coefficient, the peak velocity coefficient, and stroke volume was then assessed in accordance with age and clinical symptoms. RESULTS: The peak velocity coefficient was significantly higher in patients with hyper-oscillating flow through the Sylvian aqueduct (3.04 +/- 3.37 vs. 0.54 +/- 0.28; p = 0.0094). Moreover, these patients tended to develop symptoms more often (p = 0.0612). No significant age-related changes were observed in CSF flow parameters. CONCLUSION: Phase contrast MRI is a useful tool for noninvasive assessment of CSF flow parameters. The application of coefficients instead of direct values seems to better represent hemodynamic conditions in the ventricular system. However, further studies are required to evaluate their clinical significance and normal limits. PMID- 29322339 TI - Dolichoectasia of the anterior cerebral arteries: a rare cause of headache in a young child. PMID- 29322340 TI - The use of a smartphone-assisted ventricle catheter guide for Ommaya reservoir placement-experience of a retrospective bi-center study. AB - BACKGROUND: For intraventricular chemotherapy (IVC) as part of many oncological treatment protocols, Ommaya reservoir is enabling repeated access to the cerebro spinal fluid (CSF). The correct placement of the catheter in the ventricle is essential for correct application of drugs, which is enabled by sophisticated techniques such as neuronavigation. OBJECTIVE: In a bi-center retrospective study, we reviewed our experience using a smartphone-assisted ventricle catheter guide as simple solution for correct Ommaya reservoir placement. METHODS: Sixty Ommaya reservoirs have been placed in 60 patients between 2011 and 2017 with the smartphone-assisted ventricular catheter guidance technique. Patient characteristics, preoperative frontal and occipital horn ratio (FOHR), postoperative catheter position, and complications were assessed. RESULTS: The majority of our patients (71.6%) have got narrow or slit-like ventricles (FOHR <= 0.4). All Ommaya reservoirs were placed successfully. Fifty-eight ventricular catheters (97%) were inserted at the first and 2 (3%) at the second attempt using the same technique. No immediate perioperative complications were observed. All catheters (100%) could be used for IVC. Postoperative imaging was available in 52 patients. Thirty-two (61.5%) of ventricular catheters were rated as grade I, 20 (38.5%) as grade II, and none (0%) as grade III. Four patients (6.7%) showed postoperative complications during a median follow-up of 8.5 months (hydrocephalus, n = 1; infection, n = 1; parenchymal cyst around catheter, n = 1; shunt revision, n = 1). CONCLUSIONS: The smartphone-assisted guide offers decent accuracy of ventricle catheter placement with ease and simplicity for a small surgical intervention. We propose this technique as routine tool for Ommaya reservoir placement independent of lateral ventricular size to decrease the rate of ventricle catheter malposition as reasonable alternative to a neuronavigation system. PMID- 29322342 TI - Alcohol and disease activity in axial spondyloarthritis: a cross-sectional study. AB - The objective of this study was to explore associations between alcohol consumption and disease activity in axial spondyloarthritis (axSpA). We conducted a cross-sectional study of axSpA participants meeting the ASAS criteria. Associations between self-reported current alcohol use and disease activity (BASDAI, spinal pain, ASDAS), functional impairment (BASFI), and quality of life were explored using multivariable linear models, adjusting for age, gender, symptom duration, use of TNF inhibition therapy, smoking, deprivation, and anxiety and depression (A&D). Within alcohol drinkers, effect of increased alcohol intake (defined as > 14 units/week) was explored with moderate drinking (<= 14 units/week) as reference. The study cohort comprised 229 axSpA patients and 76% were male with mean age 46.5 years (SD +/- 13.8). Alcohol drinking was reported by 64%, with a median of 6 units per week among drinkers. Compared with non-drinkers, drinkers had lower BASDAI (beta = - 0.83; 95% CI - 1.49, - 0.17), ASDAS (beta = - 0.36; 95% CI - 0.66, - 0.05) and BASFI (beta = - 1.40; 95% CI - 2.12, - 0.68). These associations were in contrast to, and independent of, the detrimental effects of smoking, depression, and deprivation. Subgroup analysis in alcohol drinkers did not reveal significant associations between disease severity and increased alcohol intake. Stratified analyses by smoking revealed that in never-smokers without depression, alcohol was associated with greater reduction in disease activity: BASDAI (beta = - 1.69; 95% CI - 2.93, - 0.45), ASDAS (beta = - 0.60; 95% CI - 1.18, - 0.02). Favourable axSpA disease activity and function were observed in association with alcohol consumption in this cross-sectional study. Longitudinal study is required to explore whether this relationship is due to biological effects of alcohol on disease process or disease-associated behaviour modification. PMID- 29322341 TI - Interstitial lung disease in systemic sclerosis: data from the spanish scleroderma study group. AB - OBJECTIVES: To evaluate the clinical characteristics of patients with interstitial lung disease (ILD) in the setting of a large cohort of systemic sclerosis (SSc) patients, and to analyse the differences according to the SSc subtype (following the modification of classification criteria of the American College of Rheumatology for SSc proposed by LeRoy and Medsger), factors are associated with moderate-to-severe impairment of lung function, as well as mortality and causes of death. METHODS: A descriptive study was performed, using the available data from the Spanish Scleroderma Study Group. RESULTS: Twenty-one referral centers participated in the registry. By April 2014, 1374 patients with SSc had been enrolled, and 595 of whom (43%) had ILD: 316 (53%) with limited cutaneous SSc (lcSSc), 240 (40%) with diffuse cutaneous SSc (dcSSc), and 39 (7%) with SSc sine scleroderma (ssSSc). ILD in the lcSSc and the ssSSc subsets tended to develop later, and showed a less impaired forced vital capacity (FVC) and a ground glass pattern on high-resolution computed tomography (HRCT) less frequently, compared with the dcSSc subset. Factors related to an FVC < 70% of predicted in the multivariate analysis were: dcSSc, positivity to anti topoisomerase I antibodies, a ground glass pattern on HCRT, an active nailfold capillaroscopy pattern, lower DLco, older age at symptoms onset, and longer time between symptoms onset and ILD diagnosis. Finally, SSc-associated mortality and ILD-related mortality were highest in dcSSc patients, whereas that related to pulmonary arterial hypertension was highest in those with lcSSc-associated ILD. CONCLUSIONS: Our study indicates that ILD constitutes a remarkable complication of SSc with significant morbidity and mortality, which should be borne in mind in all three subgroups (lcSSc, dcSSc, and ssSSc). PMID- 29322343 TI - Rituximab for anti-neutrophil cytoplasmic antibodies-associated vasculitis: experience of a single center and systematic review of non-randomized studies. AB - Rituximab (RTX) is becoming a standard treatment for patients with anti neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV) but heterogeneity exists regarding its use. We present our uncontrolled experience with RTX in patients with refractory AAV and also the results of a systematic review of non-randomized studies on RTX in AAV patients. We retrospectively reviewed the records of AAV patients treated with RTX following an inadequate response to immunosuppressives between 2011 and 2015. The systematic review covered all English articles listed in PubMed until June 2017. There were 25 AAV patients (21 GPA, four unclassified) treated with RTX (median 2, IQR 1-3 courses; median follow-up 24, IQR 17-50 months). The kidney and the lung were the most commonly affected organs, observed in 14 and 16 patients, respectively. Complete remission rate was 72% at month 6 and 88% at month 12. Two patients had died and three serious adverse events occurred. The systematic review included 56 studies on 1422 patients with the majority being on refractory or relapsing disease. There was wide variability regarding disease characteristics, endpoints, concomitant immunosuppressives and RTX schedule. Most studies reported > 80% complete or partial remission rates with the lowest response (37.5%) for granulomatous lesions. The relapse rate was 30%. Infections and infusion reactions were the main adverse events. Our experience with RTX in refractory AAV is in line with the literature in terms of efficacy and safety. The systematic review underlines many uncertainties on its optimal use. PMID- 29322344 TI - Deadtime effects in quantification of 177Lu activity for radionuclide therapy. AB - BACKGROUND: The aim of this study was to investigate the deadtime (DT) effects that are present in 177Lu images acquired after radionuclide therapy injection, assess differences in DT based on the full spectrum and the photopeak-only measurements, and design a method to correct for the deadtime losses. A Siemens SymbiaT SPECT/CT camera with a medium energy collimator was used. A 295-mL bottle was placed off-center inside a large cylinder filled with water, and 177Lu activity was sequentially added up to a maximum of 9.12 GBq. The true count rates vs. observed count rates were plotted and fitted to the DT paralyzable model. This analysis was performed using counts recorded in the full spectrum and in other energy windows. The DT correction factors were calculated using the percentage difference between the true and the observed count rates. RESULTS: The DT values of 5.99 +/- 0.02 MUs, 4.60 +/- 0.052 MUs, and 0.19 +/- 0.18 MUs were obtained for the primary photons (PP) recorded in the 113- and 208-keV photopeaks and for the full spectrum, respectively. For the investigated range of count rates, the DT correction factors of up to 23% were observed for PP corresponding to the 113-keV photopeak, while for the 208-keV photopeak values of up to 20% were obtained. These values were almost three times higher than the deadtime correction factors derived from the full spectrum. CONCLUSIONS: The paralyzable model showed to be appropriate for the investigated range of counts, which were five to six times higher than those observed in the patient post-therapy imaging. Our results suggest that the deadtime corrections should be based on count losses in the scatter-corrected photopeak window and not on the deadtime determined from the full spectrum. Finally, a general procedure that can be followed to correct patient images for deadtime is presented. PMID- 29322345 TI - Freshwater shrimps (Macrobrachium depressimanum and Macrobrachium jelskii) as biomonitors of Hg availability in the Madeira River Basin, Western Amazon. AB - Total mercury (THg) concentrations measured in two freshwater shrimp species (Macrobrachium depressimanum and Macrobrachium jelskii) showed a relationship with the location of artisanal and small-scale gold mining (ASGM) from the Madeira River Basin, Western Amazon. Between August 2009 and May 2010, 212 shrimp samples were collected in the confluence of the Madeira River with three of its tributaries (Western Amazon). THg concentration was quantified in the exoskeleton, hepatopancreas and muscle tissue of the shrimps by cold vapor atomic absorption spectrophotometry. There were no significant differences between the two shrimp species when samples came from the Madeira River, but Hg concentrations were significantly lower in a tributary outside the influence of the gold mining area. Average THg concentrations were higher in the hepatopancreas (up to 160.0 ng g-1) and lower in the exoskeleton and muscle tissue (10.0-35.0 ng g-1 and < 0.9-42.0 ng g-1, respectively). Freshwater shrimps from the Madeira River respond to local environmental levels of Hg and can be considered as biomonitors for environmental Hg at this spatial scale. These organisms are important for moving Hg up food webs including those that harbor economic significant fish species and thus enhancing human exposure. PMID- 29322347 TI - All aspect of toxic effect of brilliant blue and sunset yellow in Allium cepa roots. AB - Substances added to food are considerable for survival and are the oldest technologies used in preservation, sweetening and coloring. This work was conducted to evaluate the toxicity of the food additives sunset yellow (SY) and brilliant blue (BB) on Allium cepa root meristematic cells. Control and treatment groups were created from germinated roots. Group 1 (control group) did not receive chemicals. Group 2 (SY or BB-treatment group), received increasing doses of SY (25, 50, 100 and 500 ppm) and BB (100, 200, 400 and 500 ppm) with time periods of 24, 48 and 72 h. After different treatment periods, the roots were obtained from all groups and EC50 concentrations, cell death, chromosome aberrations, mitotic index were observed by a light microscopy. Changing antioxidant capacity of roots was determined by FRAP and TEAC assay. Also, DNA damage was measured by comet assay and RAPD-PCR technique. Approximately 50 and 200 ppm were accepted as EC50 value for SY and BB, respectively. Chromosome aberration values were obtained with increasing concentrations and longer treatment times such as chromosome bridge, C-mitosis, micronucleus, chromosome mis-segregation in both groups. Increasing exposure doses of SY and BB caused decreasing mitotic index values at 72 h. FRAP and TEAC assay showed that antioxidant capacity of roots was decreased by increasing concentrations of SY and BB. The tail DNA% and tail length significantly increased for all exposure times when compared to the control group. 50 and 200 ppm of SY and BB caused a genotoxic effect on genetic material at 72 h according to RAPD-PCR. Increasing the doses of SY and BB resulted in increased toxicity to all studied parameters of A. cepa. In conclusion, the SY and BB tested in this study have cytotoxic and mutagenic potential. Furthermore, SY is more harmful than BB for use in the A. cepa root meristematic cells. PMID- 29322346 TI - Study on the incidence and influences on heterotopic pregnancy from embryo transfer of fresh cycles and frozen-thawed cycles. AB - PURPOSE: The purpose of this study was to determine the heterotopic pregnancy rate using fresh versus frozen-thawed embryo transfers and factors associated with heterotopic pregnancy (HP). Management and clinical outcomes after heterotopic pregnancy were also evaluated. METHODS: In this retrospective cohort study, we included 12,484 women who had clinical pregnancies after in vitro fertilization treatment at our fertility center between 2012 and 2017. Patients received fresh day 3 embryos (F-D3 group), fresh day 5 blastocysts (F-D5 group), frozen-thawed day 3 embryos (T-D3 group), or frozen-thawed day 5 or 6 blastocysts (T-D5/6 groups) transfers. The primary outcome measure was the occurrence of heterotopic pregnancy. Factors associated with heterotopic pregnancy were analyzed using logistic regression. RESULTS: The heterotopic pregnancy rates were 0.58% in the F-D3, 0.39% in F-D5, 0.56% in T-D3, and 0.33% in T-D5/6 groups, but no differences were found between groups. The risk factors of HP included a history of previous ectopic pregnancy (odds ratio [OR] 5.805, 95% CI 4.578-9.553, P = 0.016) and pelvic inflammation diseases (OR 1.129, 95% CI 1.021-3.178, P = 0.047). Salpingectomy was performed in 62.9% patients either through laparoscopy or through laparotomy. The early abortion rate and late abortion rate were 29.03% and 1.61%, respectively. In total, 66.13% of the patients had a live birth, either a singleton (90.24%) or twins (9.76%). CONCLUSION: No significant difference in the incidence of heterotopic pregnancy in fresh IVF cycles vs. frozen-thawed cycles could be demonstrated in a large cohort of patients. The risk factors of HP included history of ectopic pregnancy and PID. The clinical outcome after heterotopic pregnancy appears to be favorable. PMID- 29322348 TI - Optimisation of a potency assay for the assessment of immunomodulative potential of clinical grade multipotent mesenchymal stromal cells. AB - Clinical use of multipotent Mesenchymal Stromal Cell (MSC)-based medicinal products requires their production in compliance with Good Manufacturing Practices, thus ensuring that the final drug product meets specifications consistently from batch to batch in terms of cell viability, identity, purity and potency. Potency relates to the efficacy of the medicine in its target clinical indication, so adequate release tests need to be defined and validated as quality controls. Herein we report the design and optimisation of parameters affecting the performance of an in vitro cell-based assay for assessing immunomodulatory potential of clinical grade MSC for human use, based on their capacity to inhibit proliferation of T lymphocytes under strong polyclonal stimuli. The resulting method was demonstrated to be reproducible and relatively simple to execute. Two case studies using clinical grade MSC are presented as examples to illustrate the applicability of the methodology described in this work. PMID- 29322349 TI - Development of a chemically defined platform fed-batch culture media for monoclonal antibody-producing CHO cell lines with optimized choline content. AB - A chemically defined platform basal medium and feed media were developed using a single Chinese hamster ovary (CHO) cell line that produces a monoclonal antibody (mAb). Cell line A, which showed a peak viable cell density of 5.9 * 106 cells/mL and a final mAb titer of 0.5 g/L in batch culture, was selected for the platform media development. Stoichiometrically balanced feed media were developed using glucose as an indicator of cell metabolism to determine the feed rates of all other nutrients. A fed-batch culture of cell line A using the platform fed-batch medium yielded a 6.4 g/L mAb titer, which was 12-fold higher than that of the batch culture. To examine the applicability of the platform basal medium and feed media, three other cell lines (A16, B, and C) that produce mAbs were cultured using the platform fed-batch medium, and they yielded mAb titers of 8.4, 3.3, and 6.2 g/L, respectively. The peak viable cell densities of the three cell lines ranged from 1.3 * 107 to 1.8 * 107 cells/mL. These results show that the nutritionally balanced fed-batch medium and feeds worked well for other cell lines. During the medium development, we found that choline limitation caused a lower cell viability, a lower mAb titer, a higher mAb aggregate content, and a higher mannose-5 content. The optimal choline chloride to glucose ratio for the CHO cell fed-batch culture was determined. Our platform basal medium and feed media will shorten the medium-development time for mAb-producing cell lines. PMID- 29322350 TI - Monogenic disorders that mimic the phenotype of Rett syndrome. AB - Rett syndrome (RTT) is caused by mutations in methyl-CpG-binding protein 2 (MECP2), but defects in a handful of other genes (e.g., CDKL5, FOXG1, MEF2C) can lead to presentations that resemble, but do not completely mirror, classical RTT. In this study, we attempted to identify other monogenic disorders that share features with RTT. We performed a retrospective chart review on n = 319 patients who had undergone clinical whole exome sequencing (WES) for further etiological evaluation of neurodevelopmental diagnoses that remained unexplained despite extensive prior workup. From this group, we characterized those who (1) possessed features that were compatible with RTT based on clinical judgment, (2) subsequently underwent MECP2 sequencing and/or MECP2 deletion/duplication analysis with negative results, and (3) ultimately arrived at a diagnosis other than RTT with WES. n = 7 patients had clinical features overlapping RTT with negative MECP2 analysis but positive WES providing a diagnosis. These seven patients collectively possessed pathogenic variants in six different genes: two in KCNB1 and one each in FOXG1, IQSEC2, MEIS2, TCF4, and WDR45. n = 2 (both with KCNB1 variants) fulfilled criteria for atypical RTT. RTT-associated features included the following: loss of hand or language skills (n = 3; IQSEC2, KCNB1 x 2); disrupted sleep (n = 4; KNCB1, MEIS2, TCF4, WDR45); stereotyped hand movements (n = 5; FOXG1, KNCB1 x 2, MEIS2, TCF4); bruxism (n = 3; KCNB1 x 2; TCF4); and hypotonia (n = 7). Clinically based diagnoses can be misleading, evident by the increasing number of genetic conditions associated with features of RTT with negative MECP2 mutations. PMID- 29322351 TI - From Pacemaker to Wearable: Techniques for ECG Detection Systems. AB - With the alarming rise in the deaths due to cardiovascular diseases (CVD), present medical research scenario places notable importance on techniques and methods to detect CVDs. As adduced by world health organization, technological proceeds in the field of cardiac function assessment have become the nucleus and heart of all leading research studies in CVDs in which electrocardiogram (ECG) analysis is the most functional and convenient tool used to test the range of heart-related irregularities. Most of the approaches present in the literature of ECG signal analysis consider noise removal, rhythm-based analysis, and heartbeat detection to improve the performance of a cardiac pacemaker. Advancements achieved in the field of ECG segments detection and beat classification have a limited evaluation and still require clinical approvals. In this paper, approaches on techniques to implement on-chip ECG detector for a cardiac pacemaker system are discussed. Moreover, different challenges regarding the ECG signal morphology analysis deriving from medical literature is extensively reviewed. It is found that robustness to noise, wavelet parameter choice, numerical efficiency, and detection performance are essential performance indicators required by a state-of-the-art ECG detector. Furthermore, many algorithms described in the existing literature are not verified using ECG data from the standard databases. Some ECG detection algorithms show very high detection performance with the total number of detected QRS complexes. However, the high detection performance of the algorithm is verified using only a few datasets. Finally, gaps in current advancements and testing are identified, and the primary challenge remains to be implementing bullseye test for morphology analysis evaluation. PMID- 29322354 TI - Mutations of key driver genes in colorectal cancer progression and metastasis. AB - The association between mutations of key driver genes and colorectal cancer (CRC) metastasis has been investigated by many studies. However, the results of these studies have been contradictory. Here, we perform a comprehensive analysis to screen key driver genes from the TCGA database and validate the roles of these mutations in CRC metastasis. Using bioinformatics analysis, we identified six key driver genes, namely APC, KRAS, BRAF, PIK3CA, SMAD4 and p53. Through a systematic search, 120 articles published by November 30, 2017, were included, which all showed roles for these gene mutations in CRC metastasis. A meta-analysis showed that KRAS mutations (combined OR 1.18, 95% CI 1.05-1.33) and p53 mutations (combined OR 1.49, 95% CI 1.23-1.80) were associated with CRC metastasis, including lymphatic and distant metastases. Moreover, CRC patients with a KRAS mutation (combined OR 1.29, 95% CI 1.13-1.47), p53 mutation (combined OR 1.35, 95% CI 1.06-1.72) or SMAD4 mutation (combined OR 2.04, 95% CI 1.41-2.95) were at a higher risk of distant metastasis. Subgroup analysis stratified by ethnic populations indicated that the BRAF mutation was related to CRC metastasis (combined OR 1.42, 95% CI 1.18-1.71) and distant metastasis (combined OR 1.51, 95% CI 1.20-1.91) in an Asian population. No significant association was found between mutations of APC or PIK3CA and CRC metastasis. In conclusion, mutations of KRAS, p53, SMAD4 and BRAF play significant roles in CRC metastasis and may be both potential biomarkers of CRC metastasis as well as therapeutic targets. PMID- 29322356 TI - Inherent health and environmental risk assessment of nanostructured metal oxide production processes. AB - The health and environmental effects of chemical processes can be assessed during the initial stage of their production. In this paper, the Chemical Screening Tool for Exposure and Environmental Release (ChemSTEER) software was used to compare the health and environmental risks of spray pyrolysis and wet chemical techniques for the fabrication of nanostructured metal oxide on a semi-industrial scale with a capacity of 300 kg/day in Iran. The pollution sources identified in each production process were pairwise compared in Expert Choice software using indicators including respiratory damage, skin damage, and environmental damages including air, water, and soil pollution. The synthesis of nanostructured zinc oxide using the wet chemical technique (with 0.523 wt%) leads to lower health and environmental risks compared to when spray pyrolysis is used (with 0.477 wt%). The health and environmental risk assessment of nanomaterial production processes can help select safer processes, modify the operation conditions, and select or modify raw materials that can help eliminate the risks. PMID- 29322353 TI - Quercetin exerts cardiovascular protective effects in LPS-induced dysfunction in vivo by regulating inflammatory cytokine expression, NF-kappaB phosphorylation, and caspase activity. AB - Impaired myocardial contractile function, one of the well-documented features of sepsis, contributes greatly to the high rate of mortality. Quercetin is widely accepted as a potential antioxidant and free radical scavenger. Epidemiologic studies have suggested that an increase in the intake of dietary Quercetin can reduce the risk of cardiac disease. However, presently there is no report yet on the influence of Quercetin on LPS-induced myocardial dysfunction in vivo. Cardiovascular protective effects of Quercetin on LPS-induced sepsis in mice were measured after intragastric administration, using normal saline as a positive control. Quercetin pretreatment significantly alleviated LPS-induced cardiac abnormalities in mice. The histopathologic findings in the present study justify the findings reported from the biochemical analyses. Our observation from the present research work reveals that Quercetin suppressed the production of proinflammatory cytokines at different levels, such as TNF-alpha and IL-1beta, and inhibits the activation of I-kappaB phosphorylation, whereas the total content was not affected. Apoptotic pathways are related to Quercetin protection in the development of myocardial dysfunction. In conclusion, our findings demonstrate the adjuvant potentials of Quercetin for clinical sepsis treatment. PMID- 29322352 TI - Supraclavicular catheterization of the brachiocephalic vein: a way to prevent or reduce catheter maintenance-related complications in children. AB - : Placement of a central venous catheter (CVC) in the brachiocephalic vein (BCV) via the ultrasound (US)-guided supraclavicular approach was recently described in children. We aimed to determine the CVC maintenance-related complications at this site compared to the others (i.e., the femoral, the subclavian, and the jugular). We performed a retrospective data collection of prospectively registered data on CVC in young children hospitalized in a pediatric intensive care unit (PICU) during a 4-year period (May 2011 to May 2015). The primary outcome was a composite of central line-associated bloodstream infection (CLABSI) and deep-vein thrombosis (CLAT) according to the CVC site. Two hundred and twenty-five children, with respective age and weight of 7.1 (1.3-40.1) months and 7.7 (3.6 16) kg, required 257 CVCs, including 147 (57.2%) inserted in the BCV. The risk of the primary outcome was lower in the BCV than in the other sites (5.4 vs 16.4%; OR: 0.29; 95% CI: 0.12-0.70; p = 0.006). CLABSI incidence density rate (2.8 vs 8.96 per 1000 catheter days, p < 0.001) and CLAT incidence rate (2.7 vs 10%, p = 0.016) were also lower at this site. CONCLUSION: BCV catheterization via the US guided supraclavicular approach may decrease CVC maintenance-related complications in children hospitalized in a PICU. What is Known: * Placement of a central venous catheter (CVC) in children is associated with mechanical risks during insertion, and with infectious and thrombotic complications during its maintenance. * Ultrasound (US)-guided supraclavicular catheterization of the brachiocephalic vein (BCV) is feasible in infants and children. What is New: * This observational study suggested that BCV catheterization via the US-guided supraclavicular approach was associated with a lower risk of CVC insertion and maintenance-related complications, compared with the other catheterization sites. PMID- 29322357 TI - Community Peer-Led Falls Prevention Presentations: What Do the Experts Suggest? AB - Falls among older adults are a major problem. Despite considerable progress in falls prevention research, older adults often show low motivation to engage in recommended preventive strategies. Peer-led falls prevention education for older adults may have potential for bridging the research evidence-practice gap, thereby promoting the uptake of falls prevention strategies. We evaluated peer educators' presentations of falls prevention education to community-dwelling older adults in regard to established criteria that were consistent with adult learning principles, the framework of health behaviour change, falls prevention guidelines, and recommendations for providing falls prevention information. We conducted a within-stage mixed model study using purposive and snowball sampling techniques to recruit 10 experts to evaluate video recordings of the delivery of three peer-led falls prevention presentations. Each expert viewed three videos and rated them using a questionnaire containing both open-ended and closed items. There was a good level of expert agreement across the questionnaire domains. Though the experts rated some aspects of the presentations highly, they thought that the presentations were mainly didactic in delivery, not consistently personally relevant to the older adult audience, and did not encourage older adults to engage in the preventive strategies that were presented. Based on the experts' findings, we developed five key themes and recommendations for the effective delivery of peer-led falls prevention presentations. These included recommending that peer educators share falls prevention messages in a more interactive and experiential manner and that uptake of strategies should be facilitated by encouraging the older adults to develop a personalised action plan. Findings suggest that if peer-led falls prevention presentations capitalise on older adults' capability, opportunity, and motivation, the older adults may be more receptive to take up falls prevention messages. PMID- 29322358 TI - Anti-hypotensive drug induced cardiotoxicity: an in vitro study. AB - Cardiotoxic side effects of broad range of drugs have emerged as an important cause of developing cardiovascular complications, as patients recover from one disease but develop another. Both cardiovascular and non-cardiovascular drugs may lead to the toxicity in the heart. Many drugs were initially not screened for cardiotoxicity, which is now an essential concern for drug discovery. Levophed is used for treating hypotension in critical care patients. Being a neurotransmitter, its concentration increases significantly in stress conditions and administration of this drug to patients' results in developing acute as well as persistent cardiac complications. Therefore, understanding its concentration mediated effects and identifying the toxic concentration will serve as a platform to develop interventions to prevent adverse drug effects. In the present study, concentration and time-dependent effects of Levophed in H9C2 cardiomyoblasts were studied in detail by various cytotoxicity assays. Norepinephrine as a Levophed substitute was used and apoptotic cellular death was characterized by Annexin V and TUNEL DNA fragmentation assays. Morphological alterations, growth inhibition, and cellular death were also studied in detail. We observed that Levophed induces concentration-mediated deleterious effects in cardiomyoblasts. In-depth analysis of these effects will help in designing strategies in near future to combat and reduce this drug-induced cardiac toxicity. PMID- 29322360 TI - Highly Conserved Arg Residue of ERFNIN Motif of Pro-Domain is Important for pH Induced Zymogen Activation Process in Cysteine Cathepsins K and L. AB - Pro-domain of a cysteine cathepsin contains a highly conserved Ex2Rx2Fx2Nx3Ix3N (ERFNIN) motif. The zymogen structure of cathepsins revealed that the Arg(R) residue of the motif is a central residue of a salt-bridge/H-bond network, stabilizing the scaffold of the pro-domain. Importance of the arginine is also demonstrated in studies where a single mutation (Arg -> Trp) in human lysosomal cathepsin K (hCTSK) is linked to a bone-related genetic disorder "Pycnodysostosis". In the present study, we have characterized in vitro Arg -> Trp mutant of hCTSK and the same mutant of hCTSL. The R -> W mutant of hCTSK revealed that this mutation leads to an unstable zymogen that is spontaneously activated and auto-proteolytically degraded rapidly. In contrast, the same mutant of hCTSL is sufficiently stable and has proteolytic activity almost like its wild type counterpart; however it shows an altered zymogen activation condition in terms of pH, temperature and time. Far and near UV circular dichroism and intrinsic tryptophan fluorescence experiments have revealed that the mutation has minimal effect on structure of the protease hCTSL. Molecular modeling studies shows that the mutated Trp31 in hCTSL forms an aromatic cluster with Tyr23 and Trp30 leading to a local stabilization of pro-domain and supplements the loss of salt-bridge interaction mediated by Arg31 in wild-type. In hCTSK-R31W mutant, due to presence of a non-aromatic Ser30 residue such interaction is not possible and may be responsible for local instability. These differences may cause detrimental effects of R31W mutation on the regulation of hCTSK auto-activation process compared to altered activation process in hCTSL. PMID- 29322361 TI - Homelessness, Mental Health and Suicidality Among LGBTQ Youth Accessing Crisis Services. AB - LGBTQ youth experience increased risks of homelessness, mental health disorder symptoms, and suicidality. Utilizing data from LGBTQ youth contacting a suicide crisis services organization, this study examined: (a) rates of homelessness among crisis services users, (b) the relationship between disclosure of LGBTQ identity to parents and parental rejection and homelessness, and (c) the relationship between homelessness and mental health disorder outcomes and suicidality. A nationwide sample of LGBTQ youth was recruited for a confidential online survey from an LGBTQ-focused crisis services hotline. Overall, nearly one third of youth contacting the crisis services hotline had experienced lifetime homelessness, and those who had disclosed their LGBTQ identity to parents or experienced parental rejection because of LGBTQ status experienced higher rates of homelessness. Youth with homelessness experiences reported more symptoms of several mental health disorders and higher rates of suicidality. Suggestions for service providers are discussed. PMID- 29322362 TI - Implementing a Violence Risk Screening Protocol in a Civil Psychiatric Setting: Preliminary Results and Clinical Policy Implications. AB - Comprehensive violence risk assessment can require substantial time and resources, which may be challenging for an already strapped public mental health system. Herein, we describe a naturalistic study of the Fordham Risk Screening Tool ("FRST"), a violence risk screening instrument designed to quickly identify individuals for whom thorough violence risk assessment would be advisable. All patients admitted to one of three state hospitals during the study period received FRST screening and HCR-20V3 risk assessment. The FRST reliably and accurately identified individuals deemed high risk by the HCR-20V3. The implications of these findings, and the broader clinical policy choices are reviewed. PMID- 29322359 TI - Expression profiles of microRNAs in oxidized low-density lipoprotein-stimulated RAW 264.7 cells. AB - Macrophage-derived foam cells were one of the hallmarks of atherosclerosis, and microRNAs played an important role in the formation of foam cells. In order to explore the roles of miRNA in the formation of foam cells, we investigated miRNA expression profiles in foam cells through high-throughput sequencing technology. A total of 84 miRNAs were differentially expressed between RAW 264.7 macrophages and foam cells induced by ox-LDL. Thirty miRNAs were upregulated and 54 miRNAs were downregulated. GO terms and KEGG pathways analysis revealed that the target genes of most of DE miRNAs were mainly enriched in "cell differentiation," "endocytosis," "MAPK signaling pathway," and "FoxO signaling pathway." The target genes of some DE miRNAs were enriched in "Insulin signaling pathway," "Hippo signaling pathway," "TNF signaling pathway," "NF-kappa B signaling pathway," and "cell death." Using bioinformatics analyses and dual-luciferase reporter assays, we found that miR-28a-5p and miR-30c-1-3p directly inhibited LRAD3 and LOX-1 mRNA expression through targeting the 3'UTR of LRAD3 and LOX-1 mRNA, respectively. Our study indicates that miRNAs are extensively involved in the formation of foam cells, and provides a valuable resource for further study the role of miRNAs in atherosclerosis. PMID- 29322363 TI - A Collective Study on Modeling and Simulation of Resistive Random Access Memory. AB - In this work, we provide a comprehensive discussion on the various models proposed for the design and description of resistive random access memory (RRAM), being a nascent technology is heavily reliant on accurate models to develop efficient working designs and standardize its implementation across devices. This review provides detailed information regarding the various physical methodologies considered for developing models for RRAM devices. It covers all the important models reported till now and elucidates their features and limitations. Various additional effects and anomalies arising from memristive system have been addressed, and the solutions provided by the models to these problems have been shown as well. All the fundamental concepts of RRAM model development such as device operation, switching dynamics, and current-voltage relationships are covered in detail in this work. Popular models proposed by Chua, HP Labs, Yakopcic, TEAM, Stanford/ASU, Ielmini, Berco-Tseng, and many others have been compared and analyzed extensively on various parameters. The working and implementations of the window functions like Joglekar, Biolek, Prodromakis, etc. has been presented and compared as well. New well-defined modeling concepts have been discussed which increase the applicability and accuracy of the models. The use of these concepts brings forth several improvements in the existing models, which have been enumerated in this work. Following the template presented, highly accurate models would be developed which will vastly help future model developers and the modeling community. PMID- 29322366 TI - Under pressure: an audit of airway device pressures. PMID- 29322364 TI - Changes in Neutrophil Metabolism upon Activation and Aging. AB - Neutrophil activation is an important mechanism of host defense against pathogens. Chronic inflammation and autoimmunity are often associated with abnormalities in phenotype and functions of neutrophils. Since effector functions of immune cells during inflammation are tightly linked to their metabolic state, changes in neutrophil metabolome upon activation have been investigated in this study. Human neutrophils from healthy blood donors (n = 6) were treated either with tumor necrosis factor alpha (TNF-alpha) or lipopolysaccharide (LPS), whereas untreated neutrophils were used as control. Since apoptotic cells are abundant at sites of inflammation, the metabolome of aged, mainly apoptotic neutrophils was analyzed too. NMR spectroscopy of water-soluble metabolites revealed a clear distinction between aged neutrophils and neutrophils in control and activated samples. Higher levels of NAD+ (4- to 9-fold) and lower levels of ATP (0.3-fold), glutathione (0.8-fold), hypotaurine (0.8-fold), and phosphocholine (0.6-fold) were detected in aged neutrophils than in the other samples. Differences in metabolic profiles between LPS and TNF-alpha-stimulated cells as well as between stimulated and control neutrophils were statistically not significant. Replication with additional six blood donors confirmed increased NAD+ levels in aged cells compared to activated and control neutrophils. PMID- 29322365 TI - Iron Pots for the Prevention and Treatment of Anemia in Preschoolers. AB - OBJECTIVE: To assess the effect of food cooked in iron pots for the prevention and treatment of iron deficiency anemia. METHODS: In this cluster randomized clinical trial, authors evaluated preschoolers aged 4-5 y for 16 wk. Children were cluster randomized to either eating from iron pots (Group A) or aluminum pots (Group B). Primary outcome variables were change in hemoglobin concentration and anemia prevalence. Two biochemical evaluations were performed, to determine Hb concentrations, before and after intervention. This study was conducted in two public preschools, located in the municipality of Mucambo, Ceara, in the northeast of Brazil. RESULTS: At baseline, for group A, mean hemoglobin concentration was 12.26 +/- 1.02 g/dL and 12.29 +/- 0.95 g/dL after intervention, p = 0.78. In group B, mean baseline hemoglobin was 12.34 +/- 1.04 g/dL, and 12.13 +/- 0.86 g/dL after intervention, p = 0.07. All ten participants, who were anemic at baseline, were no longer anemic after intervention. CONCLUSIONS: Using iron cooking pots in developing countries could provide an innovative strategy to prevent and treat iron deficiency anemia. PMID- 29322367 TI - In reply: Radial artery spasm treatment by radial, median, or musculocutaneous nerve block? A potential therapeutic dilemma. PMID- 29322368 TI - Postoperative pain and study design: the type of surgical procedure matters. PMID- 29322370 TI - Looking back: The Indian Journal of Gastroenterology 2012-2017. PMID- 29322371 TI - Relationship of Parental Genetic Distance with Heterosis and Specific Combining Ability in Sesame (Sesamum indicum L.) Based on Phenotypic and Molecular Marker Analysis. AB - The genetic distance analysis for selection of suitable parents has been established and effectively used in many crops; however, there is dearth of conclusive report of relationship of genetic distance analysis with heterosis in sesame. In the present study, an attempt was made to estimate the associations of genetic distances using SSR (GDSSR), seed-storage protein profiling (GDSDS) and agro-morphological traits (GDMOR) with hybrid performance. Seven parents were selected from 60 exotic and Indian genotypes based on genetic distance from clustering pattern based on SSR, seed-storage protein, morphological traits and per se performance. For combining ability analysis, 7 parents and 21 crosses generated from 7 * 7 half diallel evaluated at two environments in a replicated field trial during pre-kharif season of 2013. Compared with the average parents yield (12.57 g plant-1), eight hybrids had a significant (P < 0.01) yield advantage across environments, with averages of 26.94 and 29.99% for better parent heterosis (BPH) and mid-parent heterosis (MPH), respectively, across environments. Highly significant positive correlation was observed between specific combining ability (SCA) and per se performance (0.97), while positive non-significant correlation of BPH with GDSSR (0.048), and non-significant negative correlations with GDMOR (- 0.01) and GDSDS (- 0.256) were observed. The linear regressions of SCA on MPH, BPH and per se performance of F1s were significant with R2 value of 0.88, 0.84 and 0.95 respectively. The present findings revealed a weak association of GDSSR with F1's performance; however, SCA has appeared as an important factor in the determination of heterosis and per se performance of the hybrids. The present findings also indicated that parental divergence in the intermediate group would likely produce high heterotic crosses in sesame. PMID- 29322369 TI - Proteomic and metabolomic analysis of marine medaka (Oryzias melastigma) after acute ammonia exposure. AB - Ammonia is both a highly toxic environmental pollutant and the major nitrogenous waste produced by ammoniotelic teleosts. Although the acute toxic effects of ammonia have been widely studied in fish, the biochemical mechanisms of its toxicity have not been understood comprehensively. In this study, we performed comparative proteomic and metabolomic analysis between ammonia-challenged (1.2 and 2.6 mmol L-1 NH4Cl for 96 h) and control groups of marine medaka (Oryzias melastigma) to identify changes of the metabolite and protein profiles in response to ammonia stress. The metabolic responses included changes of multiple amino acids, carbohydrates (glucose and glycogen), energy metabolism products (ATP and creatinine), and other metabolites (choline and phosphocholine) after ammonia exposure, indicating that ammonia mainly caused disturbance in energy metabolism and amino acids metabolism. The two-dimensional electrophoresis-based proteomic study identified 23 altered proteins, which were involved in nervous system, locomotor system, cytoskeleton assembly, immune stress, oxidative stress, and signal transduction of apoptosis. These results suggested that ammonia not only induced oxidative stress, immune stress, cell injury and apoptosis but also affected the motor ability and central nervous system in marine medaka. It is the first time that metabolomic and proteomic approaches were integrated to elucidate ammonia toxicity in marine fishes. This study is of great value in better understanding the mechanisms of ammonia toxicity in marine fishes and in practical aspects of aquaculture. PMID- 29322372 TI - Examination of Patient-Reported Outcomes in Association with TNF-Inhibitor Treatment Response: Results from a US Observational Cohort Study. AB - INTRODUCTION: Implementation of a treat-to-target strategy is challenging when the patient and physician prioritize different goals. This study aimed to "translate" improvements in Clinical Disease Activity Index (CDAI) to concepts that resonate with patients (such as pain, fatigue, morning stiffness) by examining the association between changes in disease activity and patient reported outcomes (PROs) in a national cohort of patients with rheumatoid arthritis (RA) initiating their first biologic treatment. METHODS: Patients in the Corrona registry with moderate or high disease activity (M/HDA) (defined by a CDAI score > 10), prior use of at least one conventional synthetic disease modifying antirheumatic drug (csDMARD), 12-month follow-up, and initiating their first tumor necrosis factor inhibitor (TNFi) between 1 January 2006 through 1 November 2015 were identified. Patients were stratified on the basis of CDAI during follow-up, and changes in PROs were compared with a test of trend using CDAI-defined groups. RESULTS: Of 1570 patients, 37% achieved sustained remission or low disease activity (remission/LDA), 15% had improving remission/LDA, 12% had worsening M/HDA, and 35% were in sustained M/HDA during 12-month follow-up. Those in sustained remission/LDA had greater magnitude of improvement in physical functioning, pain, fatigue, morning stiffness, patient's global assessment, and quality of life compared with patients in sustained M/HDA (p < 0.001). CONCLUSION: Reduction in disease activity was associated with improvements in PROs, with the greatest improvements seen in those who achieved sustained remission/LDA. These results reinforce the benefits of a treat-to-target approach to RA care and may improve dialogue between patients and providers, support shared decision-making, and reduce "clinical inertia." FUNDING: Corrona, LLC. PMID- 29322373 TI - Epac is required for exogenous and endogenous stimulation of adenosine A2B receptor for inhibition of angiotensin II-induced collagen synthesis and myofibroblast differentiation. AB - Angiotensin II (Ang II) plays an important role on the pathogenesis of cardiac fibrosis. Prolong and overstimulation of angiotensin II type 1 receptor with Ang II-induced collagen synthesis and myofibroblast differentiation in cardiac fibroblasts, leading to cardiac fibrosis. Although adenosine and its analogues are known to have cardioprotective effects, the mechanistic by which adenosine A2 receptors (A2Rs) inhibit Ang II-induced cardiac fibrosis is not clearly understood. In the present study, we examined the effects of exogenous adenosine and endogenous adenosine on Ang II-induced collagen and myofibroblast differentiation determined by alpha-smooth muscle action (alpha-SMA) overexpression and their underlying signal transduction. Elevation of endogenous adenosine levels resulted in the inhibition of Ang II-induced collagen type I and III and alpha-SMA synthesis in cardiac fibroblasts. Moreover, treatment with exogenous adenosine which selectively stimulated A2Rs also suppressed Ang II induced collagen synthesis and alpha-SMA production. These antifibrotic effects of both endogenous and exogenous adenosines are mediated through the A2B receptor (A2BR) subtype. Stimulation of A2BR exhibited antifibrotic effects via the cAMP dependent and Epac-dependent pathways. Our results provide new mechanistic insights regarding the role for cAMP and Epac on A2BR-mediated antifibrotic effects. Thus, A2BR is one of the potential therapeutic targets against cardiac fibrosis. PMID- 29322374 TI - Echocardiographic assessment of regional right ventricular systolic function using two-dimensional strain echocardiography and evaluation of the predictive ability of longitudinal 2D-strain imaging for pulmonary arterial hypertension in systemic sclerosis patients. AB - Systemic sclerosis (SSc) is a generalized connective tissue disorder, and SSc patients are at risk of developing pulmonary arterial hypertension (PAH). The aims of this study are to evaluate the right ventricular regional systolic function using two-dimensional speckle-tracking echocardiography (2D STE) and to determine the predictive ability of peak longitudinal systolic strain (PLSS) at the RV lateral wall for PAH in SSc patients. 80 SSc patients (mean age 51 +/- 12 years) were included in the study. Echocardiography and 2D STE were performed at baseline and after 12 months. RHC was performed only in SSc patients with clinical indications. PLSS at the apical segment of the RV free wall was significantly impaired in PAH patients compared with non-PH patients (-14.6 +/- 5.9 vs. - 22.2 +/- 7.5%, p = 0.034). PLSS at the basal, mid, and apical segments of the RV free wall was lower in both groups at follow-up compared to baseline, but the drop in strain values was statistically significant only in the non-PH group (p < 0.05). Right atrial area (OR 1.758; p = 0.023), peak tricuspid regurgitation velocity (OR 24.23; p = 0.011) and PLSS at the apical segment of the RV lateral wall (OR 2.47; p = 0.005) were independent predictors of PAH. A cut-off value of - 14.48% PLSS at the apical segment of the RV lateral wall resulted in 100% specificity for predicting PAH in SSc patients. RV pressure overload affects RV systolic function as manifested by impaired RV longitudinal deformation. Evaluating RV regional systolic function with 2D STE could be useful as an additional echocardiographic parameter for screening PAH in SSc patients. PMID- 29322375 TI - Predictors of short-term LAMA ineffectiveness in treatment naive patients with moderate to severe COPD. AB - BACKGROUND: No specific (only subgroup) recommendations for the use of long acting muscarinic antagonists in chronic obstructive pulmonary disease (COPD) exist. The aim of this exploratory hypothesis generating study was to assess whether different phenotypic/endotypic characteristics could be determinants of the short-term ineffectiveness of the initial tiotropium bromide monotherapy in treatment naive moderate to severe COPD patients. METHODS: A total of 51 consecutively recruited COPD patients were followed for 3 months after the initial evaluation and prescribed initial treatment (tiotropium). Short-term treatment ineffectiveness was assessed as a composite measure comprising COPD exacerbations, need for additional treatment, and no improvement in functional parameters, e.g. 6-min walking test (6MWT), body-mass index, airflow obstruction, dyspnea, and exercise (BODE) index and forced expiratory volume in 1 s (FEV1), and as single components. RESULTS: Treatment ineffectiveness was significantly associated with baseline hemoglobin level, COPD assessment test (CAT) score, modified Medical Research Council (mMRC) scale and BODE index (p = 0.002). Incident exacerbation during the follow-up was associated with baseline bronchoalveolar lavage fluid (BALF) alpha-amylase level and CAT score (p < 0.001), and change in treatment with leukocyte count, 6MWT desaturation and fatigue (p < 0.001). No improvement in 6MWT was associated with baseline CAT score, body mass index, mMRC, fatigue, 6MWT and BODE index (p = 0.002). No improvement in BODE index was associated with leukocyte count, serum interleukin 8 (IL-8) and BALF albumin levels (p < 0.001); and no improvement in FEV1 with CAT score, baseline vital capacity and BALF tumor necrosis factor alpha (TNF-alpha) level (p < 0.001). CONCLUSION: Our results suggest that there is a possibility to identify predictors of short-term tiotropium ineffectiveness in patients with moderate to severe COPD. PMID- 29322379 TI - Attenuation correction and metal artifact reduction in FDG PET/CT for prosthetic heart valve and cardiac implantable device endocarditis. PMID- 29322377 TI - S(+)-ketamine : Current trends in emergency and intensive care medicine. AB - S(+)-ketamine, the pure dextrorotatory enantiomer of ketamine has been available for clinical use in analgesia and anesthesia for more than 25 years. The main effects are mediated by non-competitive inhibition of the N-methyl-D-aspartate (NMDA) receptor but S(+)-ketamine also interacts with opioid receptors, monoamine receptors, adenosine receptors and other purinergic receptors. Effects on alpha amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors, metabotropic glutamate receptors (mGluR) and L-type calcium chanels have also been described. S(+)-ketamine stimulates the sympathetic nerve system, making it an ideal drug for analgosedation or induction of anesthesia in instable patients. In addition, the neuroprotective properties, bronchodilatory, antihyperalgesic or antiepileptic effects provide interesting therapeutic options. In this article we discuss the numerous effects of S(+)-ketamine under pharmacological and clinical aspects especially for typical indications in emergency medicine as well as intensive care. PMID- 29322378 TI - Health literacy, pain intensity and pain perception in patients with chronic pain. AB - BACKGROUND: Chronic pain poses a large burden for the healthcare system and the individuals concerned. The impact of health literacy (HL) on health status and health outcomes is receiving more and more attention. The aim of this study was to evaluate the association of HL with chronic pain intensity and pain perception. METHODS: A total of 121 outpatients suffering from chronic pain (pain duration >3 months) were evaluated. The HL was measured using the health literacy screening questions. Pain intensity was measured with a Visual Analogue Scale (VAS) and pain perception with the short-form McGill Pain Questionnaire (SF-MPQ). RESULTS: Individuals with low HL had significantly higher VAS values (Pearson correlation coefficient= -0.270, p = 0.003). Stepwise regression analysis showed that HL has a significant association with pain intensity (odds ratio [OR] = 2.31; 95% confidence interval [CI] 1.11-4.83), even after controlling for age and sex (OR = 2.27; 95% CI 1.07-4.82), but no longer after controlling for education (OR = 2.10; 95% CI 0.95-4.64). CONCLUSION: Individuals with a higher HL showed less pain intensity, which seems to be caused by a better pain management; therefore, supporting the development of HL in patients with chronic pain could be seen as an important objective of integrated care. PMID- 29322380 TI - RV function improvement following nitric oxide inhalation demonstrated by gated blood pool SPECT in a patient with primary pulmonary hypertension. PMID- 29322381 TI - The Genus Coccidella Hambleton (Hemiptera: Rhizoecidae) with Description of Two New Species. AB - A study was conducted on the Neotropical scale insect genus Coccidella Hambleton (Hemiptera: Coccomorpha: Rhizoecidae) based on soil sample material deposited at the Hungarian Natural History Museum. Descriptions of the adult females of two new Coccidella species, i.e., Coccidella hexapora Kaydan & Konczne Benedicty, sp. n. and Coccidella kozari Kaydan & Szita, sp. n., are provided, plus a redescription and illustration of adult female of Coccidella kissbalazsi Konczne Benedicty & Kozar. An identification key and new additional locality records for the currently known Coccidella species are provided and the affinities of the new species are discussed. PMID- 29322382 TI - Tandem Recruitment and Foraging in the Ponerine Ant Pachycondyla harpax (Fabricius). AB - Tandem running is a common recruitment strategy in ant species with small colony sizes. During a tandem run, an informed leader guides a usually naive nestmate to a food source or a nest site. Some species perform tandem runs only during house hunting, suggesting that tandem running does not always improve foraging success in species known to use tandem running as a recruitment strategy, but more natural history information on tandem running under natural conditions is needed to better understand the adaptive significance of tandem recruitment in foraging. Studying wild colonies in Brazil, we for the first time describe tandem running in the ponerine ant Pachycondyla harpax (Fabricius). We asked if foragers perform tandem runs to carbohydrate- (honey) and protein-rich (cheese) food items. Furthermore, we tested whether the speed and success rate of tandem runs depend on the foraging distance. Foragers performed tandem runs to both carbohydrate food sources and protein-rich food items that exceed a certain size. The probability to perform a tandem run and the travelling speed increase with increasing foraging distances, which could help colonies monopolize more distant food sources in a competitive environment. Guiding a recruit to a food source is costly for leaders as ants are ~66% faster when travelling alone. If tandem runs break up (~23% of all tandem runs), followers do not usually discover the food source on their own but return to the nest. Our results show that tandem running to food sources is common in P. harpax, but that foragers modify their behaviour according to the type of food and its distance from the nest. Competition with other ants was intense and we discuss how tandem running in P. harpax might help colonies to build-up a critical number of ants at large food items that can then defend the food source against competitors. PMID- 29322383 TI - BMI 35 kg/m2 does not fit everyone: a modified STOP-Bang questionnaire for sleep apnea screening in the Chinese population. AB - PURPOSE: The STOP-Bang questionnaire is the most widely used to detect surgical patients at high risk of obstructive sleep apnea (OSA). However, the body mass index (BMI) cutoff value in the original STOP-Bang questionnaire is 35 kg/m2; the BMI in the Chinese population is lower than that. We aimed to establish a more appropriate BMI cutoff value in the STOP-Bang questionnaire for Chinese patients. METHODS: A total of 790 consecutive patients scheduled to undergo surgery at our hospital were included in this prospective study. All patients were asked to complete the STOP-Bang questionnaire and undergo a 7-h overnight polysomnography (PSG). The ability of STOP-Bang questionnaire to detect moderate to severe OSA (AHI >= 15 events/h) was assessed. RESULTS: When the BMI cutoff value was set at 28 kg/m2, the questionnaire had the highest Youden index, although no significant differences were found in the sensitivity of the test compared with the original BMI cutoff in total and in male patients. In females, changing the BMI cutoff value from 35 to 28 kg/m2 resulted in the sensitivity of the test significantly increasing from 79.2% (74.9-83.5) to 89.3% (84.4-94.1), while the decrease in specificity was minor (from 43.6% [41.2-46.0] to 38.2% [36.1-40.3]), and the Youden index was highest (0.27) at this cutoff value. When the STOP-Bang questionnaire score was 4, the highest Youden index was obtained. CONCLUSIONS: We recommend using a BMI cutoff value (28 kg/m2), and a STOP-Bang score >= 4 allows the anesthetist to identify patients with high risk of OSA. PMID- 29322384 TI - The Relationship Between Social Affect and Restricted and Repetitive Behaviors Measured on the ADOS-2 and Maternal Stress. AB - This study investigated categories of autism spectrum disorder (ASD) symptoms measured by the Autism Diagnostic Observation Schedule-Second Edition and their association with maternal stress. Social affect and restricted and repetitive behaviors were compared with levels of maternal stress, measured by the Parenting Stress Index, in 102 children with ASD ages 2-12 years of age. Results indicated that social affect and restricted and repetitive behaviors were associated with the mother's stress regarding acceptability of the child's condition. Additionally, restricted and repetitive behaviors were significantly related to stress involving the child's hyperactivity and impulsivity. These findings highlight specific areas of stress experienced by mothers of children with ASD that are related to the child's symptoms, providing information for caregiver support and intervention. PMID- 29322385 TI - Associations Between Resilience and the Well-Being of Mothers of Children with Autism Spectrum Disorder and Other Developmental Disabilities. AB - There is variability in the extent to which mothers are affected by the behavior problems of their children with developmental disabilities (DD). We explore whether maternal resilience functions as a protective or compensatory factor. In Studies 1 and 2, using moderated multiple regression models, we found evidence that maternal resilience functioned as a compensatory factor-having a significant independent main effect relationship with well-being outcomes in mothers of children with DD and autism spectrum disorder. However, there was no longitudinal association between resilience and maternal well-being outcomes. There was little evidence of the role of resilience as a protective factor between child behavior problems and maternal well-being in both studies. PMID- 29322387 TI - Giant panda foraging and movement patterns in response to bamboo shoot growth. AB - Diet plays a pivotal role in dictating behavioral patterns of herbivorous animals, particularly specialist species. The giant panda (Ailuropoda melanoleuca) is well-known as a bamboo specialist. In the present study, the response of giant pandas to spatiotemporal variation of bamboo shoots was explored using field surveys and GPS collar tracking. Results show the dynamics in panda-bamboo space-time relationships that have not been previously articulated. For instance, we found a higher bamboo stump height of foraged bamboo with increasing elevation, places where pandas foraged later in spring when bamboo shoots become more fibrous and woody. The time required for shoots to reach optimum height for foraging was significantly delayed as elevation increased, a pattern which corresponded with panda elevational migration patterns beginning from the lower elevational end of Fargesia robusta distribution and gradually shifting upward until the end of the shooting season. These results indicate that giant pandas can respond to spatiotemporal variation of bamboo resources, such as available shoots. Anthropogenic interference of low-elevation F. robusta habitat should be mitigated, and conservation attention and increased monitoring should be given to F. robusta areas at the low- and mid-elevation ranges, particularly in the spring shooting season. PMID- 29322386 TI - Independent risk factors for mortality in critically ill patients with candidemia on Italian Internal Medicine Wards. AB - Candida is an increasing cause of bloodstream infection and is associated with significant morbidity and mortality. The aim of our study is to analyze risk factors for short-term mortality in patients with bloodstream Candida spp. infections admitted to Internal Medicine Wards (IMWs). This was a retrospective case-control study between January 2012 and December 2014 from four University Hospitals in Italy, where patients with candidemia dying within 30 days from diagnosis were matched to control cases with candidemia who survived in the same period of time. Two-hundred and fifty cases of candidemia were registered during the 36 months of enrollment. Among these, 112 patients died (45%) within 30 days from the first blood culture's positivity for Candida spp. At multivariate analysis, septic shock [odds ratio (95% CI) = 2.919 (1.62-5.35), p < 0.001] and concomitant chronic kidney failure [odds ratio (95% CI) = 2.296 (1.07-5.12), p = 0.036] were independent predictors of mortality. Low-dose chronic steroid therapy was protective [odds ratio (95% CI) = 0.461 (0.25-0.83), p = 0.011). PMID- 29322388 TI - Decision support system for management of reactive nitrogen flows in wastewater system. AB - The change in nitrogen balance causes many environmental and socioeconomic impacts. In relation to food production and nitrogen release in wastewater systems, wastewater and sludge discharge and mineral fertilizer use intensify nitrogen imbalance of a region. The replacement of mineral fertilizer by nitrogen from treated wastewater, biosolids, and treated urine is a promising alternative. This work presents a model to support decision taking for the management of reactive nitrogen flows in wastewater systems based on system dynamics. Six scenarios were simulated for nitrogen flows in wastewater systems and related components. PMID- 29322389 TI - Performance of ceramic ultrafiltration and reverse osmosis membranes in treating car wash wastewater for reuse. AB - Reusing treated effluents in industries is a great option to conserve freshwater resources. For example, car wash centres all over Australia are estimated to use 17.5 billion litres of water and discharge it as wastewater and spend $75 million a year for both purchasing fresh water and for treating and/or discharging the wastewater. Therefore, it is important to develop simple but reliable systems that can help to treat and reuse car wash wastewater. Significant savings could also be associated with the implementation of such systems. This study evaluates the performance of granular and membrane filtration systems with coagulation/flocculation and sedimentation in treating car wash wastewater for the purpose of reuse. Overall, 99.9% of turbidity, 100% of suspended solids and 96% of COD were removed from the car wash wastewater after treating by coagulation, flocculation, sedimentation, sand filtration, ceramic ultrafiltration and reverse osmosis and the treated water meets the standards required for class A recycled water in Australia and standards imposed in Belgium and China. The treated water can be reused. However, optimisation is required to reduce the sludge produced by this system. PMID- 29322391 TI - Feet in danger: short exposure to contaminated soil causing health damage-an experimental study. AB - In this study, hematological and behavioral changes in Wistar rats exposed to soil collected from urban areas next to an industrial complex were investigated. Animals were exposed to soil samples placed at the bottom of cages for 4 days. After this period, behavioral parameters were measured by the open field test and the elevated plus-maze. Blood was collected to measure hematological parameters. The soil from the vicinity of the oil refining industry caused changes in hematological parameters and altered behavioral parameters in both tests. The soil from the vicinity of the petroleum refining industry and fertilizer industries increased the density of white blood cells and decreased exploratory activity in the exposed animals. The results demonstrate that contact with contaminated soils, even for short periods, can cause physiological damage in organisms and that special attention should be given to people who live under constant exposure to these soils. PMID- 29322392 TI - Effect of inorganic and organic solutes on zero-valent aluminum-activated hydrogen peroxide and persulfate oxidation of bisphenol A. AB - The effect of varying inorganic (chloride, nitrate, sulfate, and phosphate) and organic (represented by humic acid) solutes on the removal of aqueous micropollutant bisphenol A (BPA; 8.8 MUM; 2 mg/L) with the oxidizing agents hydrogen peroxide (HP; 0.25 mM) and persulfate (PS; 0.25 mM) activated using zero valent aluminum (ZVA) nanoparticles (1 g/L) was investigated at a pH of 3. In the absence of the solutes, the PS/ZVA treatment system was superior to the HP/ZVA system in terms of BPA removal rates and kinetics. Further, the HP/ZVA process was not affected by nitrate (50 mg/L) addition, whereas chloride (250 mg/L) exhibited no effect on the PS/ZVA process. The negative effect of inorganic anions on BPA removal generally speaking increased with increasing charge in the following order: NO3- (no inhibition) < Cl- (250 mg/L) = SO42- < PO43- for HP/ZVA and Cl- (250 mg/L; no inhibition) < NO3- < SO42- < PO43- for PS/ZVA. Upon addition of 20 mg/L humic acid representing natural organic matter, BPA removals decreased from 72 and 100% in the absence of solutes to 24 and 57% for HP/ZVA and PS/ZVA treatments, respectively. The solute mixture containing all inorganic and organic solutes together partly suppressed the inhibitory effects of phosphate and humic acid on BPA removals decreasing to 46 and 43% after HP/ZVA and PS/ZVA treatments, respectively. Dissolved organic carbon removals were obtained in the range of 30 and 47% (the HP/ZVA process), as well as 47 and 57% (the PS/ZVA process) for the experiments in the presence of 20 mg/L humic acid and solute mixture, respectively. The relative Vibrio fischeri photoluminescence inhibition decreased particularly for the PS/ZVA treatment system, which exhibited a higher treatment performance than the HP/ZVA treatment system. PMID- 29322390 TI - Authentication of synthetic environmental contaminants and their (bio)transformation products in toxicology: polychlorinated biphenyls as an example. AB - Toxicological studies use "specialty chemicals" and, thus, should assess and report both identity and degree of purity (homogeneity) of the chemicals (or toxicants) under investigation to ensure that other scientists can replicate experimental results. Although detailed reporting criteria for the synthesis and characterization of organic compounds have been established by organic chemistry journals, such criteria are inconsistently applied to the chemicals used in toxicological studies. Biologically active trace impurities may lead to incorrect conclusions about the chemical entity responsible for a biological response, which in turn may confound risk assessment. Based on our experience with the synthesis of PCBs and their metabolites, we herein propose guidelines for the "authentication" of synthetic PCBs and, by extension, other organic toxicants, and provide a checklist for documenting the authentication of toxicants reported in the peer-reviewed literature. The objective is to expand guidelines proposed for different types of biomedical and preclinical studies to include a thorough authentication of specialty chemicals, such as PCBs and their derivatives, with the goal of ensuring transparent and open reporting of scientific results in toxicology and the environmental health sciences. PMID- 29322393 TI - Contribution of ammonia-oxidizing archaea and ammonia-oxidizing bacteria to ammonia oxidation in two nitrifying reactors. AB - In this study, two laboratory nitrifying reactors (NRI and NRII), which were seeded by sludge from different sources and operated under different operating conditions, were found to possess distinct dominant ammonia-oxidizing microorganisms. Ammonia-oxidizing archaeal (AOA) amoA genes outnumbered ammonia oxidizing bacterial (AOB) amoA genes in reactor NRI, while only AOB amoA genes were detectable in reactor NRII. The AOA amoA gene sequences retrieved from NRI were characterized within the Nitrososphaera sister cluster of the group 1.1b Thaumarchaeota. Two inhibitors for ammonia oxidation, allylthiourea (ATU) and 2 phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide (PTIO), were applied individually and as a mixture to observe the ammonia-oxidizing activity of both microorganisms in the reactors' sludge. The results indicated that AOA and AOB jointly oxidized ammonia in NRI, while AOB played the main role in ammonia oxidation in NRII. DNA-stable isotope probing with labeled 13C-HCO3- was performed on NRI sludge. Incorporation of 13C into AOA and AOB implied that both microorganisms may perform autotrophy during ammonia oxidation. Taken together, the results from this study provide direct evidence demonstrating the contribution of AOA and AOB to ammonia oxidation in the nitrifying reactors. PMID- 29322394 TI - Removal of cadmium in aqueous solution using wheat straw biochar: effect of minerals and mechanism. AB - The biochars were produced from wheat straw (WSBC) at different pyrolytic temperatures. Biochars were characterized by multiple instrumental techniques and were applied to remove Cd from aqueous solution. The removal mechanism was explored, and the quantitative information regarding the relative contribution of related mechanisms to Cd sorption on biochars was provided. The results showed that pseudo-second-order kinetic model, TC (two-compartment) model, and Freundlich isotherm could well fit the process of Cd sorption on biochars. The sorption could be divided into fast and slow adsorption stages. The order of the Cd removal capacity by biochar was WSBC700 > WSBC500 > WSBC300. Adsorption amount of Cd by biochar reduced when the biochar was rinsed with 1.0 M HCl, which indicated that acid-soluble minerals in biochar played an important role during the Cd removal process, especially for the biochar obtained at high pyrolytic temperature. Various equipments were used to investigate the interaction mechanism between biochar and Cd. Mineral precipitation, surface complexation, and cation-pi interaction were the main mechanisms of Cd sorption on the biochars. The contribution of cation-pi mechanism was in the range of 25.42 48.58%, 2.18-19.30% for surface complexation and 32.12-72.41% for mineral precipitation, respectively. The pyrolytic temperature significantly influenced the removal capacity and mechanism of Cd on biochars. The cation-pi mechanism was predominant for biochar obtained at lower pyrolytic temperature. However, mineral precipitation mechanism played a crucial role for biochar obtained at high pyrolytic temperature. These results are helpful for the design or screening of "engineered biochar" to act as sorbents to remove or immobilized Cd in polluted soil or water. Graphical abstract ?. PMID- 29322395 TI - Lead, zinc, and cadmium uptake, accumulation, and phytoremediation by plants growing around Tang-e Douzan lead-zinc mine, Iran. AB - In the current study, soils of Tang-e Douzan mine, located in Isfahan, Iran, were collected and analyzed for soluble, exchangeable, and total amounts of Pb, Zn, Cd, Ca, and Mg. The maximum Pb, Zn, Cd, Ca, and Mg concentrations in soils were 2500, 1100, 59, 43,800, and 1320 mg/kg for total metals, 86, 83, 6.3, 4650, and 48 mg/kg for their exchangeable fractions, and 59, 3.7, 0.53, 430, and 6.4 mg/kg for their soluble fractions, respectively. All specimens collected, including 69 plant species, were analyzed for Pb, Zn, and Cd. Moreover, their phytoremediation potential was investigated by calculating bioconcentration factors (BCF), translocation factors (TF), and extraction factors (EF) for each heavy metal. Analysis of the leaves for heavy metals showed no metal hyperaccumulation. The highest shoot concentrations of Pb (298 mg/kg) and Zn (740 mg/kg) were found in Roemeria hybrida subsp. dodecandra and Cd (43 mg/kg) in Chenopodium foliosum. Plants having BCFs and TFs > 1 are capable of phytoextraction. Among the analyzed species, four had both TFs and BCFs > 1 for Zn, 13 for Cd, and none for Pb. R. hybrida, Bromus squarrosus, Descurainia sophia, and Poa bulbosa seem to be the best choices for phytoextraction of Zn. Aegilops columnaris, Allium ampeloprasum subsp. iranicum, B. squarrosus, and Cousinia piptocephala are the best choices for phytoextraction of Cd. Plants with BCF > 1 and TF < 1, including Cerastium dichotomum and Muscari neglectum for Pb, Ceratocephala falcata, M. neglectum, Ornithogalum orthophyllum, and Ranunculus arvensis for Zn and C. falcata, M. neglectum, O. orthophyllum, and R. hybrida subsp. dodecandra for Cd, are proposed to be the most efficient species for metal phytostabilization. PMID- 29322396 TI - Editorial: Special Issue "Effect-related evaluation of anthropogenic trace substances-concepts for genotoxicity, neurotoxicity and endocrine effects". PMID- 29322397 TI - Overlapping and distinct neural metabolic patterns related to impulsivity and hypomania in Parkinson's disease. AB - Impulsivity and hypomania are common non-motor features in Parkinson's disease (PD). The aim of this study was to find the overlapping and distinct neural correlates of these symptoms in PD. Symptoms of impulsivity and hypomania were assessed in 24 PD patients using the Barratt Impulsiveness Scale (BIS-11) and Self-Report Manic Inventory (SRMI), respectively. In addition, fluorodeoxyglucose positron emission tomography (FDG-PET) imaging for each individual was performed. We conducted two separate multiple regression analyses for BIS-11 and SRMI scores with FDG-PET data to identify the brain regions that are associated with both impulsivity and hypomania scores, as well as those exclusive to each symptom. Then, seed-based functional connectivity analyses on healthy subjects identified the areas connected to each of the exclusive regions and the overlapping region, used as seeds. We observed a positive association between BIS-11 and SRMI scores and neural metabolism only in the prefrontal areas. Conjunction analysis revealed an overlapping region in the middle frontal gyrus. Regions exclusive to impulsivity were found in the medial part of the right superior frontal gyrus and regions exclusive to hypomania were in the right superior frontal gyrus, right precentral gyrus and right paracentral lobule. Connectivity patterns of seeds exclusively related to impulsivity were different from those for hypomania in healthy brains. These results provide evidence of both overlapping and distinct regions linked with impulsivity and hypomania scores in PD. The exclusive regions for each characteristic are connected to specific intrinsic functional networks. PMID- 29322398 TI - Hepatitis C virus infection and development of type 2 diabetes mellitus: Systematic review and meta-analysis of the literature. AB - Type 2 diabetes mellitus (T2DM) is an endocrine disorder encompassing multifactorial mechanisms, and chronic hepatitis C virus infection (CHC) is a multifaceted disorder, associated with extrahepatic manifestations, including endocrinological disorders. CHC and T2DM are associated, but the subject remains controversial. We performed a systematic review and meta-analysis evaluating such association, searching on PubMed until February 29, 2016. Inclusion criteria were: 1) presence of at least one internal control group age- and gender-matched (non-hepatopathic controls; and/or hepatopathic, not HCV-positive, controls); 2) sufficient data to calculate odds ratio and relative risk. Exclusion criteria were: 1) literature reviews on the topic; 2) publications regarding special populations [human immunodeficiency virus and human T-lymphotropic virus-1 coinfections, hepatocellular carcinoma (HCC), post-transplantation DM, gender selection]; 3) no clear differentiation among HCV patients with CHC, cirrhosis or HCC. Data from each study were independently extracted by two reviewers and cross checked by AA. Our systematic review returned 544 records, and 33 were included in our meta-analysis. HCV infection is associated with an increased risk of T2DM independently from the severity of the associated liver disease, in CHC and cirrhotic HCV patients. As expected T2DM risk is higher in cirrhotic HCV patients, than CHC, and the prevalence of HCV infection in T2DM patients is higher than in non-diabetic controls. Regarding HBV infection prevalence, no difference exists in diabetic and non-diabetic subjects. An unequivocal CHC and T2DM association was shown. A proactive, integrated approach to HCV and T2DM therapies should maximize benefits of both diseases treatment. PMID- 29322399 TI - When is best-worst best? A comparison of best-worst scaling, numeric estimation, and rating scales for collection of semantic norms. AB - Large-scale semantic norms have become both prevalent and influential in recent psycholinguistic research. However, little attention has been directed towards understanding the methodological best practices of such norm collection efforts. We compared the quality of semantic norms obtained through rating scales, numeric estimation, and a less commonly used judgment format called best-worst scaling. We found that best-worst scaling usually produces norms with higher predictive validities than other response formats, and does so requiring less data to be collected overall. We also found evidence that the various response formats may be producing qualitatively, rather than just quantitatively, different data. This raises the issue of potential response format bias, which has not been addressed by previous efforts to collect semantic norms, likely because of previous reliance on a single type of response format for a single type of semantic judgment. We have made available software for creating best-worst stimuli and scoring best-worst data. We also made available new norms for age of acquisition, valence, arousal, and concreteness collected using best-worst scaling. These norms include entries for 1,040 words, of which 1,034 are also contained in the ANEW norms (Bradley & Lang, Affective norms for English words (ANEW): Instruction manual and affective ratings (pp. 1-45). Technical report C-1, the center for research in psychophysiology, University of Florida, 1999). PMID- 29322400 TI - General mixture item response models with different item response structures: Exposition with an application to Likert scales. AB - This article proposes a general mixture item response theory (IRT) framework that allows for classes of persons to differ with respect to the type of processes underlying the item responses. Through the use of mixture models, nonnested IRT models with different structures can be estimated for different classes, and class membership can be estimated for each person in the sample. If researchers are able to provide competing measurement models, this mixture IRT framework may help them deal with some violations of measurement invariance. To illustrate this approach, we consider a two-class mixture model, where a person's responses to Likert-scale items containing a neutral middle category are either modeled using a generalized partial credit model, or through an IRTree model. In the first model, the middle category ("neither agree nor disagree") is taken to be qualitatively similar to the other categories, and is taken to provide information about the person's endorsement. In the second model, the middle category is taken to be qualitatively different and to reflect a nonresponse choice, which is modeled using an additional latent variable that captures a person's willingness to respond. The mixture model is studied using simulation studies and is applied to an empirical example. PMID- 29322401 TI - Is it possible to cure the symptoms of the overactive bladder in women? AB - PURPOSE: To evaluate the feasibility of discontinuing treatment with mirabegron once symptoms have subsided in patients with overactive bladder (OAB). METHODS: The present study evaluated a total of 159 female OAB patients (age 62.9 +/- 12.36), each of which were prescribed 50 mg/day mirabegron (Time point 1-T1). Data obtained from voiding diaries and patient-reported outcome variables were assessed during follow-up visits at months 1, 3, 6, 12, 18 (T2), and 21 (T4). At the 18-month visit, patients with an Urgency Bother-Visual Analog Scale score of <= 50% were advised to stop treatment with mirabegron. Upon re-emergence or worsening of OAB symptoms, patients were allowed to start taking medication again at their discretion (T3). Statistical analysis was performed using a Chi-square test. An ANOVA analysis and a two-sample t test were used to evaluate differences between groups. RESULTS: A total of 56 out of 159 (35.3%) patients took 50 mg of mirabegron daily between T1 and T2. A total of 17 out of 56 patients (30.4%) did not meet the criteria for mirabegron discontinuation (Group A). A total of 24 out of 56 patients (42.9%) stopped taking the medication temporarily, but later returned to treatment (Group B). The average time span between T2 and T3 was 53.9 days. Fifteen of 56 patients (26.8%) ceased treatment with mirabegron without starting it again before T4 (Group C). The average time span between T2 and T4, in Group C, was 124.7 days. CONCLUSION: A small percentage of OAB patients were able to discontinue mirabegron due to symptom cessation. PMID- 29322402 TI - Laser treatment of primary axillary hyperhidrosis: a review of the literature. AB - Hyperhidrosis o'ccurs when the body produces sweat beyond what is essential to maintain thermal homeostasis. The condition tends to occur in areas marked by high-eccrine density such as the axillae, palms, and soles and less commonly in the craniofacial area. The current standard of care is topical aluminum chloride hexahydrate antiperspirant (10-20%), but other treatments such as anticholinergics, clonidine, propranolol, antiadrenergics, injections with attenuated botulinum toxin, microwave technology, and surgery have been therapeutically implicated as well. Yet, many of these treatments have limited efficacy, systemic side effects, and may be linked with significant surgical morbidity, creating need for the development of new and effective therapies for controlling excessive sweating. In this literature review, we examined the use of lasers, particularly the Neodynium:Yttrium-Aluminum-Garnet (Nd:YAG) and diode lasers, in treating hyperhidrosis. Due to its demonstrated effectiveness and limited side effect profile, our review suggests that Nd:YAG laser may be a promising treatment modality for hyperhidrosis. Nevertheless, additional large, randomized controlled trials are necessary to confirm the safety and efficacy of this treatment option. PMID- 29322403 TI - Divorce, Separation, and Housing Changes: A Multiprocess Analysis of Longitudinal Data from England and Wales. AB - This study investigates the effect of marital and nonmarital separation on individuals' residential and housing trajectories. Using rich data from the British Household Panel Survey (BHPS) and applying multilevel competing-risks event history models, we analyze the risk of a move of single, married, cohabiting, and separated men and women to different housing types. We distinguish moves due to separation from moves of separated people and account for unobserved codeterminants of moving and separation risks. Our analysis shows that many individuals move due to separation, as expected, but that the likelihood of moving is also relatively high among separated individuals. We find that separation has a long-term effect on individuals' residential careers. Separated women exhibit high moving risks regardless of whether they moved out of the joint home upon separation, whereas separated men who did not move out upon separation are less likely to move. Interestingly, separated women are most likely to move to terraced houses, whereas separated men are equally likely to move to flats (apartments) and terraced (row) houses, suggesting that family structure shapes moving patterns of separated individuals. PMID- 29322404 TI - In Vivo Models of Inflammatory Bowel Disease and Colitis-Associated Cancer. AB - A single layer of epithelial cells separates luminal antigens from the host immune system throughout the gastrointestinal tract. A breakdown in the integrity of the epithelial barrier can lead to chronic inflammation, which is associated with numerous complications including cancer. Here we describe three experimental protocols to chemically induce acute and chronic inflammatory bowel disease (IBD) symptoms and colitis-associated colorectal cancer (CRC) progression. These in vivo mouse models are based on the induction of damage to the colonic epithelium, resulting in an inflammatory and wound healing response. In addition, we outline colonoscopy procedures to monitor the onset of disease in individual live mice. PMID- 29322405 TI - Combining Cell Type-Restricted Adenoviral Targeting with Immunostaining and Flow Cytometry to Identify Cells-of-Origin of Lung Cancer. AB - Lung cancers display considerable intertumoral heterogeneity, leading to the classification of distinct tumor subtypes. Our understanding of the genetic aberrations that underlie tumor subtypes has been greatly enhanced by recent genomic sequencing studies and state-of-the-art gene targeting technologies, highlighting evidence that distinct lung cancer subtypes may be derived from different "cells-of-origin". Here, we describe the intra-tracheal delivery of cell type-restricted Ad5-Cre viruses into the lungs of adult mice, combined with immunohistochemical and flow cytometry strategies for the detection of lung cancer-initiating cells in vivo. PMID- 29322406 TI - Utility of Endoscopic Ultrasound-Guided Fine-Needle Aspiration for Preclinical Evaluation of Therapies in Cancer. AB - Personalising cancer therapy is a way of improving treatment efficacy, by selecting specific treatments for patients with certain molecular changes to their tumour. This requires both molecular material to detect these targets and a preclinical disease model to demonstrate treatment efficacy. In pancreatic cancer this is problematic, as most patients present with advanced disease and are therefore ineligible for surgery. As a result, biological material derived from such patients has been excluded from all preclinical studies in personalised medicine. This chapter presents methodology to achieve both of the above mentioned requirements using endoscopic ultrasound-guided fine-needle aspiration, which can be offered to nearly all patients with early or advanced disease. PMID- 29322407 TI - Modelling Intestinal Carcinogenesis Using In Vitro Organoid Cultures. AB - Mouse models of intestinal carcinogenesis are very powerful for studying the impact of specific mutations on tumour initiation and progression. Mutations can be studied both singularly and in combination using conditional alleles that can be induced in a temporal manner. The steps in intestinal carcinogenesis are complex and can be challenging to image in live animals at a cellular level. The ability to culture intestinal epithelial tissue in three-dimensional organoids in vitro provides an accessible system that can be genetically manipulated and easily visualised to assess specific biological impacts in living tissue. Here, we describe methodology for conditional mutation of genes in organoids from genetically modified mice via induction of Cre recombinase induced by tamoxifen or by transient exposure to TAT-Cre protein. This methodology provides a rapid platform for assessing the cellular changes induced by specific mutations in intestinal tissue. PMID- 29322408 TI - Protocols to Evaluate Cigarette Smoke-Induced Lung Inflammation and Pathology in Mice. AB - Cigarette smoking is a major cause of chronic obstructive pulmonary disease (COPD). Inhalation of cigarette smoke causes inflammation of the airways, airway wall remodelling, mucus hypersecretion and progressive airflow limitation. Much of the disease burden and health care utilisation in COPD is associated with the management of its comorbidities and infectious (viral and bacterial) exacerbations (AECOPD). Comorbidities, in particular skeletal muscle wasting, cardiovascular disease and lung cancer markedly impact on disease morbidity, progression and mortality. The mechanisms and mediators underlying COPD and its comorbidities are poorly understood and current COPD therapy is relatively ineffective. Many researchers have used animal modelling systems to explore the mechanisms underlying COPD, AECOPD and comorbidities of COPD with the goal of identifying novel therapeutic targets. Here we describe a mouse model that we have developed to define the cellular, molecular and pathological consequences of cigarette smoke exposure and the development of comorbidities of COPD. PMID- 29322409 TI - Tracking Competent Host Defence to Chronic Inflammation: An In Vivo Model of Peritonitis. AB - Anti-microbial host defence is dependent on the rapid recruitment of inflammatory cells to the site of infection, the elimination of invading pathogens, and the efficient resolution of inflammation so as to minimise damage to the host. The peritoneal cavity provides an easily accessible and physiologically relevant system where the delicate balance of these processes may be studied. Here, we describe murine models of peritoneal inflammation that enable studies of both competent anti-microbial immunity and inflammation associated tissue damage as a consequence of recurrent bacterial challenge. The inflammatory hallmarks of these models reflect the clinical and molecular features of peritonitis episodes seen in renal failure patients on peritoneal dialysis. Development of these models relies on the preparation of a cell-free supernatant derived from an isolate of Staphylococcus epidermidis (termed SES). Intraperitoneal administration of SES induces a TLR2-driven acute inflammatory response that is characterised by an initial transient influx of neutrophils that are replaced by a more sustained recruitment of mononuclear cells and lymphocytes. Adaptation of this model using a repeated administration of SES allows investigations into the development of adaptive immunity and memory responses, and the hallmarks associated with tissue remodelling and fibrosis. These models are therefore clinically relevant and provide exciting opportunities to study both innate and adaptive immune responses in the control of bacterial infection and pathogenesis. PMID- 29322410 TI - Citrobacter rodentium Infection Model for the Analysis of Bacterial Pathogenesis and Mucosal Immunology. AB - Citrobacter rodentium is a mouse restricted pathogen that was originally isolated from laboratory mouse colonies and causes transmissible colonic hyperplasia, characterized by thickening of the colon and inflammation. As a natural pathogen of mice, the infection model has proven critical to the development of our understanding of the pathogenesis of enteric disease and the mucosal immune response. In addition to this, some features of disease such as dysbiosis, inflammation, and wound healing replicate features of human inflammatory bowel diseases. As such, the C. rodentium infection model has become a key tool in investigations of many aspects of mucosal immunology. PMID- 29322411 TI - In Vivo Infection Model of Severe Influenza A Virus. AB - The lung is constantly exposed to both environmental and microbial challenge. As a "contained" organ, it also constitutes an excellent "self-contained" tissue to examine inflammatory responses and cellular infiltration into a diseased organ. Influenza A virus (IAV) causes both mild and severe inflammation that is strain specific following infection of the lung epithelium that spreads to other cells of the lung environment. Here, we describe a method of intranasal inoculation of the lung with IAV that can be used as a preclinical model of infection. Mice can be monitored for clinical signs of infection and tissue and lung fluid collected for further analysis to dissect the immunological consequences of IAV infection. Importantly, this method can be modified to introduce other pathogens, therapies and environmental stimuli to examine immune responses in the lung. PMID- 29322413 TI - Isolation of Mouse Primary Gastric Epithelial Cells to Investigate the Mechanisms of Helicobacter pylori Associated Disease. AB - The gastrointestinal epithelium provides the first line of defense against invading pathogens, among which Helicobacter pylori is linked to numerous gastric pathologies, including chronic gastritis and cancer. Primary gastric epithelial cells represent a useful model for the investigation of the underlying molecular and cellular mechanisms involved in these H. pylori associated diseases. In this chapter, we describe a method for the isolation of primary gastric epithelial cells from mice and detection of epithelial cell adhesion molecule (EpCAM) expression in the isolated cells. PMID- 29322412 TI - In Vivo Models for Inflammatory Arthritis. AB - In vivo mouse models of inflammatory arthritis are extensively used to investigate pathogenic mechanisms governing inflammation-driven joint damage. Two commonly utilized models include collagen-induced arthritis (CIA) and methylated bovine serum albumin (mBSA) antigen-induced arthritis (AIA). These offer unique advantages for modeling different aspects of human disease. CIA involves breach of immunological tolerance resulting in systemic autoantibody-driven arthritis, while AIA results in local resolving inflammatory flares and articular T cell mediated damage. Despite limitations that apply to all animal models of human disease, CIA and AIA have been instrumental in identifying pathogenic mediators, immune cell subsets and stromal cell responses that determine disease onset, progression, and severity. Moreover, these models have enabled investigation of disease phases not easily studied in patients and have served as testing beds for novel biological therapies, including cytokine blockers and small molecule inhibitors of intracellular signaling that have revolutionized rheumatoid arthritis treatment. PMID- 29322414 TI - Dissecting Interleukin-6 Classic- and Trans-Signaling in Inflammation and Cancer. AB - Interleukin-6 is a cytokine synthesized by many cells in the human body. IL-6 binds to a membrane bound IL-6R, which is only present on hepatocytes, some epithelial cells and some leukocytes. The complex of IL-6 and IL-6R binds to the ubiquitously expressed receptor subunit gp130, which forms a homodimer and thereby initiates intracellular signaling via the JAK/STAT and the MAPK pathways. IL-6R expressing cells can cleave the receptor protein to generate a soluble IL 6R (sIL-6R), which can still bind IL-6 and can associate with gp130 and induce signaling even on cells, which do not express IL-6R. This paradigm has been called IL-6 trans-signaling whereas signaling via the membrane bound IL-6R is referred to as classic signaling. We have generated several molecular tools to differentiate between IL-6 classic- and trans-signaling and to analyze the consequence of cellular IL-6 signaling in vivo. PMID- 29322415 TI - Laser Microdissection of Cellular Compartments for Expression Analyses in Cancer Models. AB - Cancer tissues are composed of various cell types including cancer cells, cancer associated fibroblasts (CAFs), tumor-associated macrophages (TAMs) and endothelial cells. These surrounding stromal cells form the tumor microenvironment, partly through the inflammatory response, which plays an important role in the development and malignant progression of cancer. It is therefore important to examine the expression profiles and protein modifications of each cellular component independently to decipher the interaction between the tumor cells and the microenvironment. We herein describe a protocol for laser microdissection, which allows for the individual cellular compartments to be collected separately. This will allow us to perform real-time RT-PCRs and microarray analyses of specific cell types in tumor tissues. PMID- 29322416 TI - Tissue Processing for Stereological Analyses of Lung Structure in Chronic Obstructive Pulmonary Disease. AB - Quantitative data on lung structure, such as volume, surface area and length, are used for assessment of the functional performance of the lung during normal development and inflammatory-related diseases such as chronic obstructive pulmonary disorder (COPD), and carcinogenesis, in animal models. Stereology is considered as the gold standard to obtain quantitative data on lung structure, with a key advantage being to quantify irregular three-dimensional structures on the basis of measurement made on two-dimensional sections. Therefore, preservation of original tissue dimensions without shrinkage is vital for stereology.Three steps, fixation, sampling and embedding, are essential requirements to minimise tissue shrinkage to obtain theoretically unbiased estimates of stereological parameters of lung structures. Perfusion fixation by intratracheal instillation with 1.5% glutaraldehyde/1.5% formaldehyde at a pressure of 25 cm fluid column is considered as one of the best methods. A systematic uniform random sampling scheme is then applied to the fixed lung to ensure each and every part of the lung is analysed, irrespective of homogeneity or heterogeneity of the structural distribution. The sampled tissue sections are then embedded in glycol methacrylate to minimise further tissue shrinkage. Here we describe the accurate fixation, sampling and embedding for stereological methods to quantify lung structures in mice. PMID- 29322417 TI - Quantifying Caspase-1 Activity in Murine Macrophages. AB - The caspase-1 protease is a core component of multiprotein inflammasome complexes, which play a critical role in regulating the secretion of mature, bioactive pro-inflammatory cytokines interleukin (IL)-1beta and IL-18. The activity of caspase-1 is often measured indirectly, by monitoring cleavage of cellular caspase-1 substrates, processing of caspase-1 itself, or by quantifying cell death. Here we describe methods for eliciting caspase-1 activity in murine macrophages, via activation of the NLRP3, NAIP/NLRC4 or AIM2 inflammasomes. We then describe a simple fluorogenic assay for directly quantifying cellular caspase-1 activity. PMID- 29322418 TI - Analysis of Histone Modifications in Acute Myeloid Leukaemia Using Chromatin Immunoprecipitation. AB - Chromatin Immunoprecipitation (ChIP) using antibodies specific for histone modifications is a powerful technique for assessing the epigenetic states of cell populations by either quantitative PCR (ChIP-PCR) or next generation sequencing analysis (ChIP-Seq). Here we describe the procedure for ChIP of histone marks in myeloid leukaemia cell lines and the subsequent purification of genomic DNA associated with repressive and activating histone modifications for further analysis. This procedure can be widely applied to a variety of histone marks to assess both activating and repressive modifications in the context of myeloid leukaemia. PMID- 29322419 TI - Analysis of DNA Methylation in Tissues Exposed to Inflammation. AB - Induction of aberrant DNA methylation is one of the most important mechanisms mediating the effect of inflammation on cancer development. Aberrant methylation of promoter CpG islands of tumor suppressor genes can silence their downstream genes, and that in cancer tissues is associated with prognosis or therapeutic effects. In addition, aberrant methylation can occur in tissues exposed to specific types of inflammation, producing a so-called "epigenetic field for cancerization," and its accumulation is correlated with cancer risk. Thus, aberrant methylation at specific loci is an important biomarker and mediator of the carcinogenic effect of inflammation. DNA methylation at specific genomic regions can be analyzed by various methods based upon bisulfite-mediated DNA conversion, which specifically converts unmethylated cytosines into uracils under appropriate conditions. Methylation-specific PCR (MSP), quantitative MSP, and bisulfite sequencing are widely used, and this chapter provides protocols for bisulfite-mediated conversion, quantitative MSP, and bisulfite sequencing. PMID- 29322420 TI - A Comprehensive Protocol Resource for Performing Pooled shRNA and CRISPR Screens. AB - This chapter details a compendium of protocols that collectively enable the reader to perform a pooled shRNA and/or CRISPR screen-with methods to identify and validate positive controls and subsequent hits; establish a viral titer in the cell line of choice; create and screen libraries, sequence strategies, and bioinformatics resources to analyze outcomes. Collectively, this provides an overarching resource from the start to finish of a screening project, making this technology possible in all laboratories. PMID- 29322421 TI - Immuno-detection of Immature and Bioactive Forms of the Inflammatory Cytokine IL 18. AB - Gastric cancer (GC) is the third most lethal cancer worldwide, and like many other types of cancers, it is associated with precursory chronic inflammatory responses. In the context of many inflammation-associated cancers such as GC, activation of the innate immune response by infectious microbes and/or host derived molecules is often characterized by production of the cytokines interleukin (IL)-1beta and IL-18, which can often have divergent and opposing (i.e., pro or anti) roles in inflammation and oncogenesis. The processing of these mature bioactive cytokines from their inactive precursor polypeptides is dependent upon the enzyme Caspase-1, which is part of multiprotein complexes called "inflammasomes." Considering the recent mounting evidence for the role of IL-18 in the pathogenesis of GC, here, we describe a Western blotting technique used on genetic mouse models for GC to detect and characterize both pro-Il-18 and mature IL-18 proteins. PMID- 29322422 TI - Optimization Techniques for miRNA Expression in Low Frequency Immune Cell Populations. AB - In this chapter we outline a RNA extraction method for very low immune cell populations isolated from the central nervous system of mice undergoing experimental autoimmune encephalomyelitis. We compare various normalization and quantification techniques to examine miRNA expression. Our data highlight that employing a mean normalization procedure using a number of well-selected housekeeping miRNA genes, followed by absolute quantification with a standard curve generated from a commercial miRNA oligo, gave the most robust and reproducible miRNA expression results. PMID- 29322423 TI - Assessing the cGAS-cGAMP-STING Activity of Cancer Cells. AB - DNA sensing by the STING pathway is emerging to be a crucial component of the antitumor immune response. Although it plays a key role in the activation of tumor immune cells, exactly how STING is activated by tumor cells is not fully understood. Recent evidence suggests that cGAS can be directly engaged and produces 2'3'-cyclic-GMP-AMP (cGAMP) within certain tumor cells upon stimulation with DNA damaging agents. Because cGAMP can transfer between adjacent cells, the capacity of tumor cells to produce cGAMP may activate tumor immune cells, even in the absence of functional STING signaling within the tumor. Here we describe a simple coculture protocol allowing for the functional characterization of cGAS/STING activity in tumor cells, together with cGAMP transfer to adjacent cells. This approach will help define how different tumors engage the STING pathway, and whether synthetic STING agonists should be used to potentiate the antitumor effects of chemotherapies. PMID- 29322424 TI - Expression and Purification of JAK1 and SOCS1 for Structural and Biochemical Studies. AB - Interferon gamma (IFNgamma) is a potent inflammatory and immune cytokine. IFNgamma signals via the interferon gamma receptor (IFNGR), which is constitutively bound to Janus Kinase (JAK) 1 and JAK2 via its intracellular domain. These two JAK proteins then initiate the inflammatory signaling cascade. The most potent inhibitor of IFNgamma signaling is Suppressor of Cytokine Signaling 1 (SOCS1). SOCS1 negatively regulates IFNgamma signaling pathway (and other pathways) by directly inhibiting JAKs. Here, we describe a protocol for the recombinant production and purification of the JAK1 kinase domain and its inhibitor SOCS1, for structural and biochemical studies. PMID- 29322425 TI - Production of Recombinant Killer Immunoglobulin-Like Receptors for Crystallography and Luminex-Based Assays. AB - The killer immunoglobulin-like receptors (KIR) are a highly diverse family of cell-surface receptors that are of importance to the effector function of Natural Killer cells. KIR have been implicated in the detection and clearance of malignantly transformed cells and in the immune-control of viruses including HIV, HCV and CMV. Recently, the mismatching of donor and recipient KIR has been demonstrated to improve success of hematopoietic stem cell transplantation treatments of leukemias. Due to the high degree of diversity amongst the KIR, a number of strategies are required for the production of recombinant protein for medical, biochemical and structural applications. Each of these strategies has advantages and limitations and is suitable for different subsets of the KIR and their intended use. Here we describe the preparation of these proteins for crystallography and the novel adaptation of tetramer production for this protein family that is suitable for a number of assays including single-antigen bead binding by Luminex. These methods are intended to provide comprehensive details for the production and characterization of each KIR and to be broadly applicable to other cell surface receptors of the immune system. PMID- 29322426 TI - Isolation and Characterization of Mouse Intrahepatic Lymphocytes by Flow Cytometry. AB - In the field of cellular immunology multicolor flow cytometry is a frequently applied method that allows for the simultaneously detection of multiple parameters on an individual cell basis. Flow cytometry can be used to characterize a wide range of immune cell subsets using fluorophore-conjugated antibodies to a wide range of cellular antigens. The isolation of immune cells from nonlymphoid tissue and their preparation for flow cytometry can be a challenging process with respect to immune cell yields and viability. Here we describe a method for the efficient isolation of viable mouse intrahepatic lymphocytes (IHL) from normal liver tissue and liver cancer and their subsequent characterization by multicolor flow cytometry. PMID- 29322427 TI - Immunophenotyping of pediatric brain tumors: correlating immune infiltrate with histology, mutational load, and survival and assessing clonal T cell response. AB - There is little known regarding the immune infiltrate present in pediatric brain tumors and how this compares to what is known about histologically similar adult tumors and its correlation with survival. Here, we provide a descriptive analysis of the immune infiltrate of 22 fresh pediatric brain tumor tissue samples of mixed diagnoses and 40 peripheral blood samples. Samples were analyzed using a flow cytometry panel containing markers for immune cell subtypes, costimulatory markers, inhibitory signals, and markers of activation. This was compared to the standard method of immunohistochemistry (IHC) for immune markers for 89 primary pediatric brain tumors. Both flow cytometry and IHC data did not correlate with the grade of tumor or mutational load and IHC data was not significantly associated with survival for either low grade or high grade gliomas. There is a trend towards a more immunosuppressive phenotype in higher grade tumors with more regulatory T cells present in these tumor types. Both PD1 and PDL1 were present in only a small percentage of the tumor infiltrate. T cell receptor sequencing revealed up to 10% clonality of T cells in tumor infiltrates and no significant difference in clonality between low and high grade gliomas. We have shown the immune infiltrate of pediatric brain tumors does not appear to correlate with grade or survival for a small sample of patients. Further research and larger studies are needed to fully understand the interaction of pediatric brain tumors and the immune system. PMID- 29322428 TI - Feasibility of the evidence-based cognitive telerehabilitation program Remind for patients with primary brain tumors. AB - Many patients with primary brain tumors experience cognitive deficits. Cognitive rehabilitation programs focus on alleviating these deficits, but availability of such programs is limited. Our large randomized controlled trial (RCT) demonstrated positive effects of the cognitive rehabilitation program developed by our group. We converted the program into the iPad-based cognitive rehabilitation program ReMind, to increase its accessibility. The app incorporates psychoeducation, strategy training and retraining. This pilot study in patients with primary brain tumors evaluates the feasibility of the use of the ReMind-app in a clinical (research) setting in terms of accrual, attrition, adherence and patient satisfaction. The intervention commenced 3 months after resective surgery and patients were advised to spend 3 h per week on the program for 10 weeks. Of 28 eligible patients, 15 patients with presumed low-grade glioma or meningioma provided informed consent. Most important reason for decline was that patients (7) experienced no cognitive complaints. Participants completed on average 71% of the strategy training and 76% of the retraining. Some patients evaluated the retraining as too easy. Overall, 85% of the patients evaluated the intervention as "good" or "excellent". All patients indicated that they would recommend the program to other patients with brain tumors. The ReMind-app is the first evidence-based cognitive telerehabilitation program for adult patients with brain tumors and this pilot study suggests that postoperative cognitive rehabilitation via this app is feasible. Based on patients' feedback, we have expanded the retraining with more difficult exercises. We will evaluate the efficacy of ReMind in an RCT. PMID- 29322429 TI - Comment on "Serum Hepcidin and Soluble Transferrin Receptor in the Assessment of Iron Metabolism in Children on a Vegetarian Diet". PMID- 29322430 TI - Serum Copper Homeostasis in Hypertensive Intracerebral Hemorrhage and its Clinical Significance. AB - This study was to investigate the alterations of serum copper homeostasis after hypertensive intracerebral hemorrhage (ICH), which is not yet clear. We recruited 85 hypertensive ICH patients and determined their serum levels of total copper (TCu), small molecule copper (SMC), and ceruloplasmin (Cp). Sera from 32 healthy persons and 12 primary hypertension patients were collected and analyzed as well. Serum TCu levels in ICH patients were tested at three time points (on admission, day 3, and day 7) and found to be higher than that in hypertension patients (p < 0.05). The serum SMC levels in hypertension patients and ICH patients at three time points were higher than that in healthy controls (p < 0.05). Higher serum SMC levels on days 3 and 7 were associated with death in the hospital. Additionally, higher serum SMC levels on the seventh day were associated with poor outcome at discharge. High serum Cp levels on admission, as well as low serum Cp levels on the seventh day, were associated with death in the hospital (p = 0.002 and p = 0.034, respectively). Our findings indicated that declines in serum Cp and increases in serum SMC are correlated with lethal or poor outcome in hypertensive ICH patients, possibly as a result of contributions to secondary injury of brain after hemorrhage due to impairment of iron transport and enhanced oxidative stress. PMID- 29322431 TI - Daylight Photodynamic Therapy Versus 5-Fluorouracil for the Treatment of Actinic Keratosis: A Case Series. AB - INTRODUCTION: The incidence of actinic keratosis (AK) continues to increase worldwide. Currently available options for the treatment of AK include topical 5 fluorouracil (5-FU) and daylight-mediated photodynamic therapy (DL-PDT). This split-face pilot study compared DL-PDT using 16% methyl aminolevulinate (MAL) cream versus 5-FU cream in patients with AK on the face/scalp. METHODS: Five male subjects (mean age 70 years) with grade I-III AK on the face/scalp were enrolled. Subjects received a single session of DL-PDT with 16% MAL on one side and topical 5% 5-FU for 21 days on the other side. Evaluations of efficacy, safety, and subject satisfaction were conducted 48 h, 7 days, 14 days, 1 month, and 3 months after treatment. RESULTS: At 3 months, the lesion complete response rate was 80% and 93% for DL-PDT and 5-FU, respectively. Lesion partial response was 20% and 7%, respectively. Fewer treatment-related adverse events (AEs) were reported with DL-PDT than with 5-FU, and they resolved spontaneously in 5-7 and 27-30 days, respectively. Subjects preferred DL-PDT because of the lower incidence of AEs and rapid recovery compared with 5-FU. CONCLUSION: DL-PDT is a convenient alternative to 5-FU with good efficacy and a favorable safety profile, allowing patients to effectively treat their AK without compromising their social life. FUNDING: Galderma. PMID- 29322432 TI - Renal histopathological findings of retinal vasculopathy with cerebral leukodystrophy. AB - Retinal vasculopathy with cerebral leukodystrophy (RVCL) is a rare autosomal dominant systemic microvascular disease. Neurological disorders and visual disturbance are highlighted as manifestations of RVCL; however, there are few reports focused on nephropathy. Herein, we describe detailed renal histopathological findings in a daughter and father with RVCL, proven by TREX1 genetic analysis. A kidney biopsy of the daughter, 35-year-old with asymptomatic proteinuria, revealed unique and various glomerular changes. Atypical double contour (not tram track-like) of the capillary wall was widely found, an apparent characteristic finding. Glomerular findings were varied due to a combination of new and old segmental mesangial proliferative changes, mesangiolysis, and segmental glomerulosclerosis-like lesions; these changes may be related to endothelial cell damage. Collapsed tufts were also found and thought to be the result of ischemia due to arterial changes. Glomerular findings in a kidney biopsy of the father revealed similarity to the daughter's glomerulus at a relatively advanced stage, but the degree of variety in the glomerular findings was much less. Kidney biopsy findings suggesting endothelial cell damage of unknown etiology need to be considered for possible RVCL. PMID- 29322433 TI - Biological aortic valve replacement: advantages and optimal indications of stentless compared to stented valve substitutes. A review. AB - Controversy still surrounds the optimal biological valve substitute for aortic valve replacement. In light of the current literature, we review advantages and optimal indications of stentless compared to stented aortic bio-prostheses. Recent meta-analyses, prospective randomized controlled trials and retrospective studies comparing the most frequently used stentless and stented aortic bio prostheses were analyzed. In the present review, the types and implantation techniques of the bio-prosthesis that are seldom taken into account by most studies and reviews were integrated in the interpretation of the relevant reports. For stentless aortic root bio-prostheses, full-root vs. sub-coronary implantation offered better early transvalvular gradients, effective orifice area and left ventricular mass regression as well as late freedom from structural valve deterioration in retrospective studies. Early mortality and morbidity did not differ between the stentless and stented aortic bio-prostheses. Early transvalvular gradients, effective orifice area and regression of left ventricular hypertrophy were significantly better for stentless, especially as full-root, compared to stented bio-prostheses. The long-term valve-related survival for stentless aortic root and Toronto SPV bio-prosthesis was as good as that for stented pericardial aortic bio-prostheses. For full-root configuration this survival advantage was statistically significant. There seems to be not one but different ideal biological valve substitutes for different subgroups of patients. In patients with small aortic root or exposed to prosthesis-patient mismatch full-root implantation of stentless bio-prostheses may better meet functional needs of individual patients. Longer follow-ups on newer generation of stented bio-prostheses are needed for comparison of their hemodynamic performance with stentless counterparts especially in full-root configuration. PMID- 29322434 TI - Protection from Reperfusion Injury with Intracoronary N-Acetylcysteine in Patients with STEMI Undergoing Primary Percutaneous Coronary Intervention in a Cardiac Tertiary Center. AB - BACKGROUND: Evidence suggests that oxidative stress plays a principal role in myocardial damage following ischemia/reperfusion events. Recent studies have shown that the antioxidant properties of N-acetylcysteine (NAC) may have cardioprotective effects in high doses, but-to the best of our knowledge-few studies have assessed this. OBJECTIVES: Our objective was to investigate the impact of high-dose NAC on ischemia/reperfusion injury. METHODS: We conducted a randomized double-blind placebo-controlled trial in which 100 consecutive patients with ST-elevation myocardial infarction undergoing percutaneous coronary intervention (PCI) were randomly assigned to the case group (high-dose NAC 100 mg/kg bolus followed by intracoronary NAC 480 mg during PCI then intravenous NAC 10 mg/kg for 12 h) or the control group (5% dextrose). We measured differences in peak creatine kinase-myocardial band (CK-MB) concentration, highly sensitive troponin T (hs-TnT), thrombolysis in myocardial infarction (TIMI) flow, myocardial blush grade (MBG), and corrected thrombolysis in myocardial infarction frame count (cTFC). RESULTS: The peak CK-MB level was comparable between the two groups (P = 0.327), but patients receiving high-dose NAC demonstrated a significantly larger reduction in hs-TnT (P = 0.02). In total, 94% of the NAC group achieved TIMI flow grade 3 versus 80% of the control group (P = 0.03). No significant differences were observed between the two groups in terms of changes in the cTFC and MBG. CONCLUSIONS: In this study, NAC improved myocardial reperfusion markers and coronary blood flow, as revealed by differences in peak hs-TnT and TIMI flow grade 3 levels, respectively. Further studies with large samples are warranted to elucidate the role of NAC in this population. ClinicalTrials.gov identifier: NCT01741207, and the Iranian Registry of Clinical Trials (IRCT; http://irct.ir ) registration number: IRCT201301048698N8. PMID- 29322435 TI - Vaccine-associated paralytic poliomyelitis in a patient with acute lymphocytic leukemia. AB - We report a case of vaccine-associated paralytic poliomyelitis (VAPP) in an immunocompromised patient with acute lymphocytic leukemia who was initially diagnosed with aseptic meningitis. Isolation of Sabin-like type 1 poliovirus from the patient's cerebrospinal fluid made this a case of vaccine-related poliovirus (VRPV) infection. The patient developed paralysis and respiratory distress and deceased a few months after onset of paralysis with respiratory failure. This tragic case report highlights the emergence of VAPP and indicates the importance of timely diagnosis of VRPV infections to improve clinical management of VRPV infected patients and to prevent the devastating consequences of silent introduction of VRPVs in treatment wards and eventually in the society. PMID- 29322436 TI - Detection and Reconstruction of Circular RNAs from Transcriptomic Data. AB - Recent studies have shown that circular RNAs (circRNAs) are a novel class of abundant, stable, and ubiquitous noncoding RNA molecules in eukaryotic organisms. Comprehensive detection and reconstruction of circRNAs from high-throughput transcriptome data is an initial step to study their biogenesis and function. Several tools have been developed to deal with this issue, but they require many steps and are difficult to use. To solve this problem, we provide a protocol for researchers to detect and reconstruct circRNA by employing CIRI2, CIRI-AS, and CIRI-full. This protocol can not only simplify the usage of above tools but also integrate their results. PMID- 29322437 TI - Deep Computational Circular RNA Analytics from RNA-seq Data. AB - Circular RNAs (circRNAs) have been first described as "scrambled exons" in the 1990s. CircRNAs originate from back splicing or exon skipping of linear RNA templates and have continuously gained attention in recent years due to the availability of high-throughput whole-transcriptome sequencing methods. Numerous manuscripts describe thousands of circRNAs throughout uni- and multicellular eukaryote species and demonstrated that they are conserved, stable, and abundant in specific tissues or conditions. This manuscript provides a walk-through of our bioinformatics toolbox, which covers all aspects of in silico circRNA analysis, starting from raw sequencing data and back-splicing junction discovery to circRNA quantitation and reconstruction of internal the circRNA structure. PMID- 29322438 TI - Genome-Wide circRNA Profiling from RNA-seq Data. AB - The genome-wide expression patterns of circular RNAs (circRNAs) are of increasing interest for their potential roles in normal cellular homeostasis, development, and disease. Thousands of circRNAs have been annotated from various species in recent years. Analysis of publically available or user-generated rRNA-depleted total RNA-seq data can be performed to uncover new circRNA expression trends. Here we provide a primer for profiling circRNAs from RNA-seq datasets. The description is tailored for the wet lab scientist with limited or no experience in analyzing RNA-seq data. We begin by describing how to access and interpret circRNA annotations. Next, we cover converting circRNA annotations into junction sequences that are used as scaffolds to align RNA-seq reads. Lastly, we visit quantifying circRNA expression trends from the alignment data. PMID- 29322439 TI - Analysis of Circular RNAs Using the Web Tool CircInteractome. AB - Circular RNAs (circRNAs) are generated through nonlinear back splicing, during which the 5' and 3' ends are covalently joined. Consequently, the lack of free ends makes them very stable compared to their counterpart linear RNAs. By selectively interacting with microRNAs and RNA-binding proteins (RBPs), circRNAs have been shown to influence gene expression programs. We designed a web tool, CircInteractome, in order to (1) explore potential interactions of circRNAs with RBPs, (2) design specific divergent primers to detect circRNAs, (3) study tissue- and cell-specific circRNAs, (4) identify gene-specific circRNAs, (5) explore potential miRNAs interacting with circRNAs, and (6) design specific siRNAs to silence circRNAs. Here, we review the CircInteractome tool and explain recent updates to the site. The database is freely accessible at http://circinteractome.nia.nih.gov . PMID- 29322440 TI - Characterization and Validation of Circular RNA and Their Host Gene mRNA Expression Using PCR. AB - Polymerase chain reaction enables the detection and characterization of circular RNA expression. The use of divergent primer pairs flanking the back-splice site, being the unique sequence element of a circular RNA, enables the detection of circular RNA expression. Here we describe the basic techniques to detect different circular transcripts of a gene or one circular RNA specifically by PCR and highlight the advantages and drawbacks of both. PMID- 29322441 TI - Detecting Circular RNAs by RNA Fluorescence In Situ Hybridization. AB - Fluorescence in situ hybridization (FISH) coupled to high-resolution microscopy is a powerful method for analyzing the subcellular localization of RNA. However, the detection of circular RNAs (circRNAs) using microscopy is challenging because the only feature of a circRNA that can be used for the probe design is its junction. Circular RNAs are expressed at varying levels, and for their efficient monitoring by FISH, background fluorescence levels need to be kept low. Here, we describe a FISH protocol coupled to high-precision localizations using a single fluorescently labeled probe spanning the circRNA junction; this allows circRNA detection in mammalian cells with high signal-to-noise ratios. PMID- 29322442 TI - Single-Molecule Fluorescence In Situ Hybridization (FISH) of Circular RNA CDR1as. AB - Individual mRNA molecules can be imaged in fixed cells by hybridization with multiple, singly labeled oligonucleotide probes, followed by computational identification of fluorescent signals. This approach, called single-molecule RNA fluorescence in situ hybridization (smRNA FISH), allows subcellular localization and absolute quantification of RNA molecules in individual cells. Here, we describe a simple smRNA FISH protocol for two-color imaging of a circular RNA, CDR1as, simultaneously with an unrelated messenger RNA. The protocol can be adapted to circRNAs that coexist with overlapping, noncircular mRNA isoforms produced from the same genetic locus. PMID- 29322444 TI - Constructing GFP-Based Reporter to Study Back Splicing and Translation of Circular RNA. AB - Human transcriptome contains a large number of circular RNAs (circRNAs) that are mainly produced by back splicing of pre-mRNA. Here we describe a minigene reporter system containing a single exon encoding split GFP in reverse order, which can be efficiently back spliced to produce a circRNA encoding intact GFP gene. This simple reporter system can be adopted to study how different cis elements and trans-factors affect circRNA production, and also can serve as a reliable system to measure the activity of IRES-mediated translation. Therefore this system can serve as a platform for mechanistic studies on the circRNA biogenesis and its function. PMID- 29322443 TI - A Highly Efficient Strategy for Overexpressing circRNAs. AB - Circular RNAs (circRNAs) constitute an emerging class of widespread, abundant, and evolutionarily conserved noncoding RNA. They play important and diverse roles in cell development, growth, and tumorigenesis, but functions of the majority of circRNAs remain enigmatic. In order to investigate circRNA function it is necessary to manipulate its expression. While various standard approaches exist for circRNA knockdown, here we present cloning vectors for simplifying the laborious process of cloning circRNAs to achieve high-efficiency overexpression in mammalian cell lines. PMID- 29322445 TI - Northern Blot Analysis of Circular RNAs. AB - Northern blotting enables the specific detection and characterization of RNA molecules. Recently, circular RNAs (circRNAs) were described as a new class of cell type-specific noncoding RNAs. With the discovery of many novel circRNAs on the basis of high-throughput sequencing and bioinformatics, a solid biochemical approach is required to directly detect and validate specific circRNA species. Here we give a detailed overview of how different Northern blot methods can be employed to validate specific circRNAs. Different Northern gel and detection systems are introduced, in combination with additional tools for circRNA characterization, such as RNase R and RNase H treatments. PMID- 29322446 TI - Nonradioactive Northern Blot of circRNAs. AB - Circular RNAs (circRNAs) are recognized as a special species of transcripts in metazoans with increasing studies, and northern blotting is a direct way to confirm the existence and to evaluate the size of individual circRNAs. Northern blotting probes can be radioactive isotope (32P) labeled, which is not environment-friendly and sometimes inconvenient to use. Here, we describe a nonradioactive northern blot protocol with digoxigenin-labeled probe to detect circRNA. PMID- 29322447 TI - Characterization of Circular RNA Concatemers. AB - Circular RNAs (circRNAs) constitute a novel subset in the fascinating world of noncoding RNA, and they are found in practically all eukaryotes. Most of them exhibit low expression levels but some are extremely abundant. Typically, circRNAs are studied by RT-PCR-based assays, but for certain types of analyses this technique is not suitable. Circular RNA with repetitive exons (circular concatemers) has been observed by us and others when transiently expressing circRNAs in cells, however techniques and assays to study these species have not been established. Here, this chapter outlines three biochemical assays (RNase R-, RNase H-, and alkaline-treatment) that combined with northern blotting are useful to study circRNAs in general and circular RNA concatemers in particular. PMID- 29322448 TI - Characterization of Circular RNAs (circRNA) Associated with the Translation Machinery. AB - A substantial proportion of the currently annotated genes in eukaryotes are proposed to function as RNA molecules (>200 bp) with no significant protein coding potential, currently classified as long noncoding RNAs (lncRNA). A distinct subgroup of lncRNAs is circular RNAs (circRNAs), which can be easily identified by unique junction reads, resulting from their biogenesis. CircRNAs are largely cytosolic and thought to either code for micro-peptides or facilitate gene regulation by sequestering microRNAs (miRNAs) or RNA-binding proteins (RBPs) from their targets. Interrogation of the interaction of circRNAs with cellular macromolecular machineries could indicate their mode of action. Here, we detail a sucrose gradient-based method to pinpoint association of a given circRNA (or any transcript of interest) with distinct ribosomal fractions. This method can evaluate the coding potential of candidate circRNAs (or any transcript of interest) and its association with the translation machinery. PMID- 29322449 TI - Synthesis and Engineering of Circular RNAs. AB - Circular RNAs (circRNAs) have been discovered in all kingdoms of life. They are produced from introns as well as from exons. However, strongest interest is in circRNAs that are transcribed and spliced from exons of protein and noncoding genes in eukaryotic cells including humans. Therefore, synthesis and engineering of circRNAs as models for structure and function studies are strongly required. In vitro, methods for RNA synthesis and circularization are available. Chemical synthesis allows for preparation of RNAs incorporating nonnatural nucleotides in small RNA segments, whereas enzymatic synthesis is advantageous for production of long RNAs, however, without the possibility for site-specific modification. Strategies for chemical and enzymatic RNA synthesis may be combined to obtain long modified linear RNA strands for subsequent circularization. Here, we describe two alternative protocols for synthesis and circularization in dependence on downstream applications and template structure. PMID- 29322450 TI - Preparation of Circular RNA In Vitro. AB - This chapter describes a simple and straightforward way to obtain single-stranded circular RNA sequences in vitro. Linear RNA that is phosphorylated at the 5' end is first prepared by a chemical or enzymatic method, then circularized using ligase. The function of the prepared circular RNA molecule, such as an ability to induce translation, can then be investigated. PMID- 29322451 TI - Discovering circRNA-microRNA Interactions from CLIP-Seq Data. AB - Circular RNAs (circRNAs) represent an abundant group of noncoding RNAs in eukaryotes and are emerging as important regulatory molecules in physiological and pathological processes. However, the precise mechanisms and functions of most of circRNAs remain largely unknown. In this chapter, we describe how to identify circRNA-microRNA interactions from Argonaute (AGO) cross-linking and immunoprecipitation followed by sequencing (CLIP-Seq) and RNA-Seq data using starBase platform and software. We developed three stand-alone computational software, including circSeeker, circAnno, and clipSearch, to identify and annotate circRNAs and their interactions with microRNAs (miRNAs). In addition, we developed interactive Web applications to evaluate circRNA-miRNA interactions identified from CLIP-Seq data and discover the miRNA-sponge circRNAs. starBase platform provides a genome browser to comparatively analyze these interactions at multiple levels. As a means of comprehensively integrating CLIP-Seq and RNA-Seq data, starBase platform is expected to reveal the regulatory networks involving miRNAs and circRNAs. The software and platform are available at http://starbase.sysu.edu.cn/circTools.php. PMID- 29322452 TI - Identification of circRNAs for miRNA Targets by Argonaute2 RNA Immunoprecipitation and Luciferase Screening Assays. AB - Circular RNAs from back-spliced exons (circRNAs) represent a novel class of widespread and endogenous RNAs in eukaryotes. circRNAs may bind to microRNAs (miRNAs) and inhibit the activity of miRNAs. Alternatively, miRNAs could also directly target circRNAs and regulate the expression of circRNAs. Here we describe the Argonaute2 (AGO2) RNA immunoprecipitation (RIP) and luciferase screening assays to identify the interaction between circRNAs and miRNAs. The AGO2 RIP assay evaluates the potential of the interaction between circRNAs and miRNAs. The luciferase screening assay investigates the targeting miRNAs and the detail binding sites for a specific circRNA. PMID- 29322453 TI - Mothering matters: Maternal style predicts puppies' future performance. AB - Bray et al. (2017, Proceedings of the National Academy of Sciences, 113(32), 9128 9133) recently showed that maternal interactions between service dog mothers and their puppies were predictive of puppies' future success as a candidate service dog. These findings prompt questions into the role of genetics and early experiences and may provide useful selection tools for working dog breeding programs. PMID- 29322454 TI - Methods for Measuring the Production of Quorum Sensing Signal Molecules. AB - One relevant aspect for understanding the bottlenecks that modulate the spread of resistance among bacterial pathogens consists in the effect that the acquisition of resistance may have on the microbial physiology . Whereas studies on the effect of acquiring resistance of bacterial growth are frequently performed, more detailed analyses aiming to understand in depth the cross talk between resistance and virulence, including bacterial communication are less frequent. The bacterial quorum sensing system, is an important intraspecific and interspecific communication system highly relevant for many physiological processes, including virulence and bacterial/host interactions. Some works have shown that the acquisition of antibiotic resistance may impair the quorum sensing response. In addition, some antibiotics as antimicrobial peptides can affect the production and accumulation of the quorum sensing signal molecules. Given the relevance that this system has in the bacterial behavior in the human host, it is important to study the effect that the acquisition of antibiotic resistance may have on the production of quorum sensing signals. In this chapter we present a set of methods for measuring quorum sensing signals based on the use of biosensor strains, either coupled to Thin Layer Chromatography or for performing automated luminometry/spectrophotometry assays. We use Pseudomonas aeruginosa as bacterial model because it has a complex quorum system than encloses different signals. Namely, P. aeruginosa quorum sensing system consists in three different interconnected regulatory networks, each one presenting a specific autoinducer molecule: the las system, which signal is N-(3-oxo-dodecanoyl)-L-homoserine lactone, the rhl system, which signal is N-butanoyl-homoserine lactone and the pqs system, which signals are 2-heptyl-3-hydroxy-4(1H)-quinolone together with its immediate precursor 2-heptyl-4-hydroxy-quinoline. PMID- 29322455 TI - Construction and Use of Staphylococcus aureus Strains to Study Within-Host Infection Dynamics. AB - The study of the dynamics that occur during the course of a bacterial infection has been attempted using several methods. Here we discuss the construction of a set of antibiotic-resistant, otherwise-isogenic Staphylococcus aureus strains that can be used to observe the progress of systemic disease in a mouse model at various time-points postinfection. The strains can likewise be used to study the progression of infection in other animal infection models, such as the zebrafish embryo. Furthermore, the use of antibiotic resistance tags provides a convenient system with which to investigate the effect of antimicrobial chemotherapy during disease. PMID- 29322456 TI - Method for Detecting and Studying Genome-Wide Mutations in Single Living Cells in Real Time. AB - DNA sequencing and fluctuation test have been choice methods for studying DNA mutations for decades. Although invaluable tools allowing many important discoveries on mutations, they are both highly influenced by fitness effects of mutations, and therefore suffer several limits. Fluctuation test is for example limited to mutations that produce an identifiable phenotype, which is the minority of all generated mutations. Genome-wide extrapolations using this method are therefore difficult. DNA sequencing detects almost all DNA mutations in population of cells. However, the obtained population mutation spectrum is biased because of the fitness effects of newly generated mutations. For example, mutations that affect fitness strongly and negatively are underrepresented, while those with a strong positive effect are overrepresented. Single-cell genome sequencing can solve this problem. However, sufficient amount of DNA for this approach is obtained by massive whole-genome amplification, which produces many artifacts.We describe the first direct method for monitoring genome-wide mutations in living cells independently of their effect on fitness. This method is based on the following three facts. First, DNA replication errors are the major source of DNA mutations. Second, these errors are the target for an evolutionarily conserved mismatch repair (MMR) system, which repairs the vast majority of replication errors. Third, we recently showed that the fluorescently labeled MMR protein MutL forms fluorescent foci on unrepaired replication errors. If not repaired, the new round of DNA synthesis fixes these errors in the genome permanently, i.e., they become mutations. Therefore, visualizing foci of the fluorescently tagged MutL in individual living cells allows detecting mutations as they appear, before the expression of the phenotype. PMID- 29322457 TI - Detecting Phenotypically Resistant Mycobacterium tuberculosis Using Wavelength Modulated Raman Spectroscopy. AB - Raman spectroscopy is a non-destructive and label-free technique. Wavelength modulated Raman (WMR) spectroscopy was applied to investigate Mycobacterium tuberculosis cell state, lipid rich (LR) and lipid poor (LP). Compared to LP cells, LR cells can be up to 40 times more resistant to key antibiotic regimens. Using this methodology single lipid rich (LR) from lipid poor (LP) bacteria can be differentiated with both high sensitivity and specificity. It can also be used to investigate experimentally infected frozen tissue sections where both cell types can be differentiated. This methodology could be utilized to study the phenotype of mycobacterial cells in other tissues. PMID- 29322458 TI - A Flow Cytometry Method for Assessing M. tuberculosis Responses to Antibiotics. AB - Traditional drug susceptibility methods can take several days or weeks of incubation between drug exposure and confirmation of sensitivity or resistance. In addition, these methods do not capture information about viable organisms that are not immediately culturable after drug exposure. Here, we present a rapid fluorescence detection method for assessing the susceptibility of M. tuberculosis to antibiotics. Fluorescent markers Calcein violet-AM and SYTOX-green are used for measuring cell viability or cell death and to capture information about the susceptibility of the whole population and not just those bacteria that can grow in media postexposure. Postexposure to the antibiotic, the method gives a rapid readout of drug susceptibility, as well as insights into the concentration and time-dependent drug activity following antibiotic exposure. PMID- 29322459 TI - Application of Continuous Culture for Assessing Antibiotic Activity Against Mycobacterium tuberculosis. AB - There is a proportion of the M. tuberculosis population that is refractory to the bactericidal action of antituberculosis antibiotics due to phenotypic tolerance. This tolerance can be impacted by environmental stimuli and the subsequent physiological state of the organism. It may be the result of preexisting populations of slow growing/non replicating bacteria that are protected from antibiotic action. It still remains unclear how the slow growth of M. tuberculosis contributes to antibiotic resistance and antibiotic tolerance. Here, we present a method for assessing the activity of antibiotics against M. tuberculosis using continuous culture, which is the only system that can be used to control bacterial growth rate and study the impact of slow or fast growth on the organism's response to antibiotic exposure. PMID- 29322460 TI - Real-Time Digital Bright Field Technology for Rapid Antibiotic Susceptibility Testing. AB - Optical scanning through bacterial samples and image-based analysis may provide a robust method for bacterial identification, fast estimation of growth rates and their modulation due to the presence of antimicrobial agents. Here, we describe an automated digital, time-lapse, bright field imaging system (oCelloScope, BioSense Solutions ApS, Farum, Denmark) for rapid and higher throughput antibiotic susceptibility testing (AST) of up to 96 bacteria-antibiotic combinations at a time. The imaging system consists of a digital camera, an illumination unit and a lens where the optical axis is tilted 6.25 degrees relative to the horizontal plane of the stage. Such tilting grants more freedom of operation at both high and low concentrations of microorganisms. When considering a bacterial suspension in a microwell, the oCelloScope acquires a sequence of 6.25 degrees -tilted images to form an image Z-stack. The stack contains the best-focus image, as well as the adjacent out-of-focus images (which contain progressively more out-of-focus bacteria, the further the distance from the best-focus position). The acquisition process is repeated over time, so that the time-lapse sequence of best-focus images is used to generate a video. The setting of the experiment, image analysis and generation of time-lapse videos can be performed through a dedicated software (UniExplorer, BioSense Solutions ApS). The acquired images can be processed for online and offline quantification of several morphological parameters, microbial growth, and inhibition over time. PMID- 29322461 TI - Enhanced Methodologies for Detecting Phenotypic Resistance in Mycobacteria. AB - Lipid droplets found in algae and other microscopic organisms have become of interest to many researchers partially because they carry the capacity to produce bio-oil for the mass market. They are of importance in biology and clinical practice because their presence can be a phenotypic marker of an altered metabolism, including reversible resistance to antibiotics, prompting intense research.A useful stain for detecting lipid bodies in the lab is Nile red. It is a dye that exhibits solvatochromism; its absorption band varies in spectral position, shape and intensity with the nature of its solvent environment, it will fluoresce intensely red in polar environment and blue shift with the changing polarity of its solvent. This makes it ideal for the detection of lipid bodies within Mycobacterium spp. This is because mycobacterial lipid bodies' primary constituents are nonpolar lipids such as triacylglycerols but bacterial cell membranes are primarily polar lipid species. In this chapter we describe an optimal method for using Nile red to distinguish lipid containing (Lipid rich or LR cells) from those without lipid bodies (Lipid Poor or LP). As part of the process we have optimized a method for separating LP and LR cells that does not require the use of an ultracentrifuge or complex separation media. We believe that these methods will facilitate further research in these enigmatic, transient and important cell states. PMID- 29322463 TI - Selection of ESBL-Producing E. coli in a Mouse Intestinal Colonization Model. AB - Asymptomatic human carriage of antimicrobially drug-resistant pathogens prior to infection is increasing worldwide. Further investigation into the role of this fecal reservoir is important for combatting the increasing antimicrobial resistance problems. Additionally, the damage on the intestinal microflora due to antimicrobial treatment is still not fully understood. Animal models are powerful tools to investigate bacterial colonization subsequent to antibiotic treatment. In this chapter we present a mouse-intestinal colonization model designed to investigate how antibiotics select for an ESBL-producing E. coli isolate. The model can be used to study how antibiotics with varying effect on the intestinal flora promote the establishment of the multidrug-resistant E. coli. Colonization is successfully investigated by sampling and culturing stool during the days following administration of antibiotics. Following culturing, a precise identification of the bacterial strain found in mice feces is applied to ensure that the isolate found is in fact identical to the strain used for inoculation. For this purpose random amplified of polymorphic DNA (RAPD) PCR specifically developed for E. coli is applied. This method allows us to distinguish E. coli with more than 99.95% genome similarity using a duplex PCR method. PMID- 29322462 TI - Methods to Determine Mutational Trajectories After Experimental Evolution of Antibiotic Resistance. AB - The evolution of bacterial resistance to antibiotics by mutation within the genome (as distinct from horizontal gene transfer of new material into a genome) could occur in a single step but is usually a multistep process. Resistance evolution can be studied in laboratory environments by serial passage of bacteria in liquid culture or on agar, with selection at constant, or varying, concentrations of drug. Whole genome sequencing can be used to make an initial analysis of the evolved mutants. The trajectory of evolution can be determined by sequence analysis of strains from intermediate steps in the evolution, complemented by phenotypic analysis of genetically reconstructed isogenic strains that recapitulate the intermediate steps in the evolution. PMID- 29322464 TI - Transcriptional Profiling Mycobacterium tuberculosis from Patient Sputa. AB - The emergence of drug resistance threatens to destroy tuberculosis control programs worldwide, with resistance to all first-line drugs and most second-line drugs detected. Drug tolerance (or phenotypic drug resistance) is also likely to be clinically relevant over the 6-month long standard treatment for drug sensitive tuberculosis. Transcriptional profiling the response of Mycobacterium tuberculosis to antimicrobial drugs offers a novel interpretation of drug efficacy and mycobacterial drug-susceptibility that likely varies in dynamic microenvironments, such as the lung. This chapter describes the noninvasive sampling of tuberculous sputa and techniques for mRNA profiling M. tb bacilli during patient therapy to characterize real-world drug actions. PMID- 29322465 TI - Direct in Gel Genomic Detection of Antibiotic Resistance Genes in S1 Pulsed Field Electrophoresis Gels. AB - S1 pulsed field gel electrophoresis (PFGE) is a method to separate the bacterial chromosome(s) from plasmid nucleic acids. When combined with ethidium bromide staining and UV visualization this method is excellent at assessing the number of plasmids in individual bacterial strains. It is also good at approximating the true size of each individual plasmid when run against a DNA molecular marker. However, downstream applications such as: the location of individual resistance genes on individual plasmids or the chromosome are hampered by very poor transfer of large DNA molecules from agarose gels to adsorbent nylon or nitrocellulose membranes. Herein, we describe a method to directly probe agarose PFGE gels eliminating the necessity of transfer and generating excellent genomic location results. PMID- 29322466 TI - Using RT qPCR for Quantifying Mycobacteria marinum from In Vitro and In Vivo Samples. AB - Mycobacterium marinum, the causative agent of fish tuberculosis, is rarely a human pathogen causing a chronic skin infection. It is now wildely used as a model system in animal models, especially in zebra fish model, to study the pathology of tuberculosis and as a means of screening new anti-tuberculosis agent. To facilitate such research, quantifying the viable count of M. marinum bacteria is a crucial step. The main approach used currently is still by counting the number of colony forming units (cfu), a method that has been in place for almost 100 years. Though this method well established, understood and relatively easy to perform, it is time-consuming and labor-intensive. The result can be compromised by failure to grow effectively and the relationship between count and actual numbers is confused by clumping of the bacteria where a single colony is made from multiple organisms. More importantly, this method is not able to detect live but not cultivable bacteria, and there is increasing evidence that mycobacteria readily enter a "dormant" state which confounds the relationship between bacterial number in the host and the number detected in a cfu assay. DNA based PCR methods detect both living and dead organisms but here we describe a method, which utilizes species specific Taq-Man assay and RT-qPCR technology for quantifying the viable M. marinum bacterial load by detecting 16S ribosomal RNA (16S rRNA). PMID- 29322467 TI - Use of Larval Zebrafish Model to Study Within-Host Infection Dynamics. AB - Investigating bacterial dynamics within the infected host has proved very useful for understanding mechanisms of pathogenesis. Here we present the protocols we use to study bacterial dynamics within infected embryonic zebrafish. This chapter encompasses basic techniques used to study bacterial infection within larval zebrafish, including embryonic zebrafish maintenance, injections of morpholino oligonucleotides, intravenous injections of bacterial suspensions, and fluorescence imaging of infected zebrafish. Specific methods for studying bacterial within-host population dynamics are also described. PMID- 29322468 TI - A Method to Evaluate Persistent Mycobacterium tuberculosis In Vitro and in the Cornell Mouse Model of Tuberculosis. AB - Persistent Mycobacterium tuberculosis will not grow on solid or liquid media. They will, however, grow in the presence of resuscitation promoting factors (RPF). Here we describe the production of RPF rich culture supernatants, and their use for the stimulation of growth of persisters in vitro as well as in the Cornell model of tuberculosis. PMID- 29322469 TI - Removal of muscular artifacts in EEG signals: a comparison of linear decomposition methods. AB - The most common approach to reduce muscle artifacts in electroencephalographic signals is to linearly decompose the signals in order to separate artifactual from neural sources, using one of several variants of independent component analysis (ICA). Here we compare three of the most commonly used ICA methods (extended Infomax, FastICA and TDSEP) with two other linear decomposition methods (Fourier-ICA and spatio-spectral decomposition) suitable for the extraction of oscillatory activity. We evaluate the methods' ability to remove event-locked muscle artifacts while maintaining event-related desynchronization in data from 18 subjects who performed self-paced foot movements. We find that all five analyzed methods drastically reduce the muscle artifacts. For the three ICA methods, adequately high-pass filtering is very important. Compared to the effect of high-pass filtering, differences between the five analyzed methods were small, with extended Infomax performing best. PMID- 29322471 TI - Correction to: Pharmacists' confidence when providing pharmaceutical care on anticoagulants, a multinational survey. AB - In the original publication of this article, the article note has been missed and published online. PMID- 29322470 TI - Associations between the Drug Burden Index, Potentially Inappropriate Medications and Quality of Life in Residential Aged Care. AB - BACKGROUND: Inappropriate polypharmacy may negatively impact the quality of life of residents in aged care facilities, but it remains unclear which medications may influence this reduced quality of life. OBJECTIVE: The objective of this study was to examine whether the Drug Burden Index and potentially inappropriate medications were associated with quality of life in older adults living in residential care with a high prevalence of cognitive impairment and dementia. METHODS: We conducted cross-sectional analyses of 541 individuals recruited from 17 residential aged care facilities in Australia in the Investigating Services Provided in the Residential Environment for Dementia (INSPIRED) study. Quality of life was measured using the EuroQol Five Dimensions Questionnaire (a measure of generic quality of life) and the Dementia Quality of Life Questionnaire completed by the participant or a proxy. RESULTS: In the 100 days prior to recruitment, 83.1% of the participants received at least one anticholinergic or sedative medication included in the Drug Burden Index and 73.0% received at least one potentially inappropriate medication according to the Beers Criteria. Multi-level linear models showed there was a significant association between a higher Drug Burden Index and lower quality of life according to the EuroQol Five Dimensions Questionnaire [beta (standard error): - 0.034 (0.012), p = 0.006] after adjustment for potential confounding factors. Increasing numbers of potentially inappropriate medications were also associated with lower EuroQol Five Dimensions Questionnaire scores [- 0.030 (0.010), p = 0.003] and Dementia Quality of Life Questionnaire-Self-Report-Utility scores [- 0.020 (0.009), p = 0.029]. Exposure to both Drug Burden Index-associated medications and potentially inappropriate medications was associated with lower Dementia Quality of Life Questionnaire-Self Report-Utility scores [- 0.034 (0.017), p = 0.049]. CONCLUSION: Exposure to anticholinergic and sedative medications and potentially inappropriate medications occurred in over three-quarters of a population of older adults in residential care and was associated with a lower quality of life. PMID- 29322472 TI - The prevalence and risk factors of hepatitis B flares in chronic hepatitis B patients receiving glucocorticoid pulse therapy. AB - Background The frequency and risks of hepatitis B reactivation in patients receiving glucocorticoid pulse therapy has not been reported. Objective The aim of our study was to investigate the possibility of glucocorticoid pulse therapy related hepatitis B flare. Setting A Taiwanese tertiary hospital. Methods Chronic hepatitis B patients underwent glucocorticoid pulse therapy were retrospectively collected. The prevalence of hepatitis B flare was counted, and the statistic analysis with logistic regression was adapted to assess the associated risk factors. Main outcome measure The prevalence and associated risk factors of the individuals with hepatitis B flare after glucocorticoid pulse therapy were collected and analyzed. Results A total of 112 patients were identified. Forty patients had received prophylactic antiviral therapy and none of them developed hepatitis B flare. Among the 72 patients who had not received antiviral prophylaxis, 11 of them (15.3%) experienced hepatitis B flares. Those individuals with hepatitis B flares, comparing to those without, were younger (37.4 +/- 13.3 vs. 46.0 +/- 11.1, p = 0.038), had higher ratio of HBeAg positivity (50 vs. 15.9%, p = 0.017), higher percentage of high hepatitis B viral load (81.8 vs. 8.3%, p = 0.002), higher maintenance glucocorticoid dose (prednisone or equivalent 22.7 +/- 14.9 vs. 10.7 +/- 12.4 mg, p = 0.003) and higher ratio of cyclophosphamide use (27.3 vs. 1.6%, p = 0.010). After multivariate analysis, only higher dose of maintenance glucocorticoid was related to hepatitis B flare (odds ratio, 1.08; 95% CI, 1.01-1.16). Conclusion A higher maintenance glucocorticoid dosage is associated with the risk of hepatitis B flare after glucocorticoid pulse therapy. No hepatitis B flare occurred in patients receiving prophylactic antiviral therapy before glucocorticoid pulse therapy. PMID- 29322474 TI - Pharmacovigilance in developing countries (part II): a path forward. AB - In recent years, attention to pharmacovigilance has gained momentum in developing countries, however awareness of, and policies or systems for pharmacovigilance in most developing countries still lags sharply behind developed countries. This article proposes different strategies to encourage the introduction and sustain the advancement of robust pharmacovigilance systems in developing countries. To this end, this article seeks to accomplish the ultimate goal of pharmacovigilance in a developing country context; ensuring patient safety and promoting safe and rational use of drugs. PMID- 29322473 TI - Pharmaceutical care and health related quality of life outcomes over the past 25 years: Have we measured dimensions that really matter? AB - Background Several measures of Health-Related Quality of Life (HRQoL) have been used to evaluate Pharmaceutical Care (PC) interventions in the past decades. However, their suitability for evaluation of PC services has not been comprehensively evaluated. Aim of the review The aim of this review was to perform content analysis of HRQoL measures used in PC studies to gain an insight into their suitability for evaluation of PC services. Method PC studies evaluating HRQoL as a primary or secondary outcomes were retrieved based on a literature search of articles published from 1990 to 2015, on Medline, Embase, International Pharmaceutical Abstracts, Global Health, PsycInfo, Web of Science, Cinahl, HealthStar, Cochrane Library, AUSThealth, Australian Medical Index, and Current content. Measures of HRQoL used in the studies were identified and relevant information was extracted. A conceptual model of a patient reported Medication-Related Burden Quality of Life was used to guide the analysis. Results 117 studies were retrieved. Thirty-seven: 10 generic, 27 condition-specific HRQoL measures with a total of 1019 items about physical functioning (n = 430), psychological wellbeing (n = 288), social wellbeing (n = 119), physical burden (n = 69) and others (n = 113) were used in the studies. Only 34 of 1019 items were specifically related to medicines. Of these, the majority of items focused on other aspects of medicine such as adherence, rather than the burden imposed by medicine on quality of life. Conclusion A holistic analysis of HRQoL measures used in PC studies published over two and half decades provided a better insight into sensitivity and specificity of the measures to PC services. This review found that HRQoL measures used in PC studies provide a very limited coverage of themes related to the burden of medicine on quality of life. Therefore, may have limited potential for use as a sole humanistic measure when evaluating PC interventions. There is a scope for future research in the development of an alternative measure suitable for evaluation of the burden of medicine and the impact of PC interventions on quality of life outcomes. PMID- 29322476 TI - Negative regulators of cell death pathways in cancer: perspective on biomarkers and targeted therapies. AB - Cancer is a primary cause of human fatality and conventional cancer therapies, e.g., chemotherapy, are often associated with adverse side-effects, tumor drug resistance, and recurrence. Molecularly targeted therapy, composed of small molecule inhibitors and immunotherapy (e.g., monoclonal antibody and cancer vaccines), is a less harmful alternative being more effective against cancer cells whilst preserving healthy tissues. Drug-resistance, however, caused by negative regulation of cell death signaling pathways, is still a challenge. Circumvention of negative regulators of cell death pathways or development of predictive and response biomarkers is, therefore, quintessential. This review critically discusses the current state of knowledge on targeting negative regulators of cell death signaling pathways including apoptosis, ferroptosis, necroptosis, autophagy, and anoikis and evaluates the recent advances in clinical and preclinical research on biomarkers of negative regulators. It aims to provide a comprehensive platform for designing efficacious polytherapies including novel agents for restoring cell death signaling pathways or targeting alternative resistance pathways to improve the chances for antitumor responses. Overall, it is concluded that nonapoptotic cell death pathways are a potential research arena for drug discovery, development of novel biomarkers and targeted therapies. PMID- 29322477 TI - Aortic stenosis with right-sided aortic arch treated with transfemoral aortic valve implantation. PMID- 29322475 TI - The scope of drug-related problems in the home care setting. AB - Introduction While drug-related problems (DRPs) in the inpatient setting are well known, the scope of these problems in home care has not been critically evaluated. Aim of the Review Our primary objective was to evaluate the incidence and demographics of DRPs in home care. Our specific aims were to characterize the rate of potentially inappropriate medications (PIMs), medication errors (MEs) and adverse drug events (ADEs) and to identify risk factors which contribute to DRPs in the home care setting. Methods Pubmed, Embase and CiNAHL databases were systematically searched from January 2000 to December 2016 for all publications which quantitatively characterized DRPs in the home care setting. Results The most commonly reported DRPs characterized in studies were PIMs (n = 16), MEs (n = 4) and the ME-subcategory medication-related discrepancies (n = 7). The frequency of PIMs ranged from 19.8 to 48.4%; up to 26% PIMs were considered severe. Polypharmacy (>= 9 drugs) and increasing age were the most common risk factors for DRPs. Insufficient interdisciplinary teamwork and inconsistent performance of medication reviews were also risks factors for DRPs. Patients and/or caregivers were responsible for 42.3% of DRPs. Discussion Compared with acute inpatient care, DRPs are more frequently reported in home care. The rate of DRPs varies depending upon the reference used to define the problem. Conclusion Transfer of complete medical records and the use of an interdisciplinary team have the potential to reduce DRPs, including MEs, specifically when integrating a pharmacist providing regular medication review. Importantly, patients and informal caregivers must be significant partners with this interdisciplinary team. PMID- 29322478 TI - Effect of health literacy on the quality of life of older patients with long-term conditions: a large cohort study in UK general practice. AB - PURPOSE: The levels of health literacy in patients with long-term conditions (LTCs) are critical for better disease management and quality of life (QoL). However, the impact of health literacy on QoL in older adults with LTCs is unclear. This study examined the association between health literacy and domains of QoL in older people with LTCs, investigating key socio-demographic and clinical variables, as confounders. METHODS: A prospective cohort study was conducted on older adults (n = 4278; aged 65 years and over) with at least one LTC, registered in general practices in Salford, UK. Participants completed measures of health literacy, QoL, multi-morbidity, depression, social support, and socio-demographic characteristics. Multivariate linear regressions were performed to examine the effects of health literacy on four QoL domains at baseline, and then changes in QoL over 12 months. RESULTS: At baseline, poor health literacy was associated with lower scores in all four QoL domains (physical, psychological, social relationships and environment), after adjusting for the effects of multi-morbidity, depression, social support and socio demographic factors. At 12-month follow-up, low health literacy significantly predicted declines in the physical, psychological and environment domains of QoL, but not in social relationships QoL. CONCLUSIONS: This is the largest, most complete assessment of the effects of health literacy on QoL in older adults with LTCs. Low health literacy is an independent indicator of poor QoL older patients with LTCs. Interventions to improve health literacy in older people with LTCs are encouraged by these findings. PMID- 29322479 TI - Do the Risk Factors Determine the Severity and Outcome of Cerebral Venous Sinus Thrombosis? AB - We report the burden of risk factors in cerebral venous sinus thrombosis (CVST) and its relationship with the clinical severity, extent of MRI and MRV abnormality, and outcome. One hundred and twenty-eight consecutive patients with CVST were included. Their demographic, presenting symptoms and neurological findings were noted and risk factors of CVST were evaluated. The outcomes were assessed using modified Rankin Scale (mRS). Based on the risk factors, the patients could be categorized as prothrombotic conditions only in 46 (35.9%), prothrombotic with other risk factors in 36 (28.1%), non-prothrombotic risk factors in 20 (15.6%), and no risk factors in 26 (20.3%). More than two risk factors were present in 33 (25.8%). Sixteen out of 22 (72.7%) patients with female gender-specific risk factors also had other prothrombotic conditions. On MRV, more than two sinuses were involved in 35 (27.3%) patients and 94 (73.4%) patients had parenchymal lesions on MRI. Thirty-one (24.2%) patients had poor outcome (mRS > 2) at discharge and 25/122 (20.5%) at 3 months. The number of risk factors was not related to clinical severity and extent of MRI or MRV abnormality. On multivariate analysis, age (OR 1.05, 95%CI 1.00-1.09, P = 0.03), GCS score (OR 5.30, 95%CI 1.25-22.24, P = 0.02), and mechanical ventilation (OR 196.17, 95%CI 16.05, P = 0.001) predicted the outcome at 3 months. PMID- 29322480 TI - Intra-operative Video Characterization of Carotid Artery Pulsation Patterns in Case Series with Post-endarterectomy Hypertension and Hyperperfusion Syndrome. AB - Cerebral hyperperfusion syndrome (CHS) is a complication that can occur after carotid endarterectomy (CEA), the treatment of choice to decrease the subsequent risk of fatal or disabling stroke for patients with symptomatic severe stenosis of the carotid artery. Because of its rarity and complexity, the mechanism of the condition is still unclear, making its prevention via prediction and monitoring challenging. This is especially true during surgery, when multiple factors can induce physiological changes, including blood pressure and baroreceptor functions, which are crucial factors for post-CEA hypertension and CHS. Thus, with intra-operative videos taken by surgical microscopes, we employed a new video processing technique to magnify ordinarily invisible carotid artery pulsation patterns as rhythmic color fluctuations. We applied the technique for three CEA cases, two of which developed CHS with post-CEA hypertension. For those with CHS, abnormal pulsation patterns were detected at the site of the baroreceptors. The results suggested that intra-operative baroreceptor dysfunction can potentially be linked with post-operative hypertension, as well as the occurrence of CHS. Guided by the preliminary discovery, further investigation may help establish the introduced technique as a simple and contactless technique to help predict post-CEA hypertension and CHS in order to facilitate the management and understanding of the condition and improve the care of CEA. PMID- 29322481 TI - Influence of Thrombolysis on the Safety and Efficacy of Blocking Platelet Adhesion or Secretory Activity in Acute Ischemic Stroke in Mice. AB - In acute ischemic stroke (AIS), there is an alarming discrepancy between recanalization rates of up to 70% by combined recombinant tissue-type plasminogen activator (rt-PA) therapy and mechanical thrombectomy, and no clinical benefit in at least every second stroke patient. This is partly due to ischemia/reperfusion (I/R) injury. In a translational approach, we used mice lacking dense- (Unc13d-/ ) or alpha-granules (Nbeal2-/-) and mice after blocking of platelet glycoprotein receptor (GP) Ib conferring protection from I/R injury. These mice underwent transient middle cerebral artery occlusion (tMCAO) and, as in the clinic, were treated with rt-PA. Our data show that rt-PA treatment is still safe in conjunction with selected anti-platelet therapies and pave the way for eagerly awaited additive treatment options in acute human stroke. PMID- 29322482 TI - Variation in cell size of the diatom Coscinodiscus granii influences photosynthetic performance and growth. AB - Cell size has implications for the package effect in photon absorption as well as for metabolic scaling of metabolism. In this study, we have avoided species related differences by using isolates of the marine planktonic diatom Coscinodiscus granii with cells of different sizes and grown at different light intensities to investigate their energy allocation strategies. To make full use of incident light, several fold variations in cellular chlorophyll a content were employed across cell size. This modulation of pigment-related light absorbance was deemed effective as similar light absorbing capacities were found in all treatments. Unexpected low values of O2 evolution rate at the highest irradiance level of 450 MUmol photons m-2 s-1 were found in medium and large cells, regardless of more photons being absorbed under these conditions, suggesting the operation of alternative electron flows acting as electron sinks. The growth rate was generally larger at higher irradiance levels except for the large cells, in which growth slowed at 450 MUmol photons m-2 s-1, suggesting that larger cells achieved a balance between growth and photoprotection by sacrificing growth rate when exposed to high light. Although the ratio of carbon demand to rates of uncatalysed CO2 diffusion to the cell surface reached around 20 in large cells grown under higher irradiance, the carbon fixation rate was not lowered, due to the presence of a highly effective carbon dioxide concentrating mechanism. PMID- 29322483 TI - Structural integrity of Synechocystis sp. PCC 6803 phycobilisomes evaluated by means of differential scanning calorimetry. AB - Phycobilisomes (PBSs) are supramolecular pigment-protein complexes that serve as light-harvesting antennae in cyanobacteria. They are built up by phycobiliproteins assembled into allophycocyanin core cylinders (ensuring the physical interaction with the photosystems) and phycocyanin rods (protruding from the cores and having light-harvesting function), the whole PBSs structure being maintained by linker proteins. PBSs play major role in light-harvesting optimization in cyanobacteria; therefore, the characterization of their structural integrity in intact cells is of great importance. The present study utilizes differential scanning calorimetry and spectroscopy techniques to explore for the first time, the thermodynamic stability of PBSs in intact Synechocystis sp. PCC 6803 cells and to probe its alteration as a result of mutations or under different growth conditions. As a first step, we characterize the thermodynamic behavior of intact and dismantled PBSs isolated from wild-type cells (having fully assembled PBSs) and from CK mutant cells (that lack phycocyanin rods and contain only allophycocyanin cores), and identified the thermal transitions of phycocyanin and allophycocyanin units in vitro. Next, we demonstrate that in intact cells PBSs exhibit sharp, high amplitude thermal transition at about 63 degrees C that strongly depends on the structural integrity of the PBSs supercomplex. Our findings implicate that calorimetry could offer a valuable approach for the assessment of the influence of variety of factors affecting the stability and structural organization of phycobilisomes in intact cyanobacterial cells. PMID- 29322485 TI - Effects of Ipragliflozin on Postprandial Glucose Metabolism and Gut Peptides in Type 2 Diabetes: A Pilot Study. AB - INTRODUCTION: Ipragliflozin is a novel antidiabetic drug that inhibits renal tubular sodium-glucose cotransporter-2 (SGLT2). The aim of this study was to evaluate the effects of ipragliflozin on glucose, insulin, glucagon, and gastrointestinal peptide responses to a meal tolerance test, as well as to investigate the glucose-lowering mechanisms of ipragliflozin. METHODS: Nine Japanese patients with obesity and type 2 diabetes mellitus were treated with ipragliflozin (50 mg/day) for 12 weeks. The postprandial profiles of glucose, insulin, glucagon, active glucagon-like peptide-1 (GLP-1), active glucose dependent insulinotropic polypeptide (GIP), ghrelin, and des-acyl ghrelin were measured before and 12 weeks after ipragliflozin treatment. RESULTS: Body weight, body fat mass, systolic blood pressure, and HbA1c and serum uric acid levels were significantly decreased after the treatment. Postprandial glucose and insulin levels were also significantly decreased. Postprandial glucagon increased both before and after ipragliflozin treatment; however, the increment tended to be smaller after treatment. Active GLP-1, active GIP, ghrelin, and des-acyl ghrelin did not change after treatment. CONCLUSION: Ipragliflozin improved glycemic control by reducing body weight, postprandial inappropriate glucagon secretion, and the postprandial insulin requirement. Although this was a short-term study with a small sample size, ipragliflozin may offer benefits for patients with obesity and type 2 diabetes mellitus. TRIAL REGISTRATION: University Hospital Medical Information Network (UMIN No. 000017195). PMID- 29322487 TI - Sydney Nano: small matters for big impact. PMID- 29322486 TI - Dapagliflozin and Empagliflozin Ameliorate Hepatic Dysfunction Among Chinese Subjects with Diabetes in Part Through Glycemic Improvement: A Single-Center, Retrospective, Observational Study. AB - INTRODUCTION: Sodium-glucose co-transporter 2 inhibitors (SGLT2i) improve hepatic dysfunction, although studies focusing on their underlying mechanisms are lacking, especially ones on dapagliflozin and empagliflozin. Here, we investigated the relationship between amelioration of hepatic dysfunction and improvement in various metabolic parameters among Chinese subjects with type 2 diabetes (T2DM). METHODS: This was a single-center, retrospective, observational study that involved 115 Chinese participants with T2DM treated with either dapagliflozin or empagliflozin for at least 6 months between July 2016 and February 2017. RESULTS: Of the 115 participants included in this study, 69 received dapagliflozin and 46 received empagliflozin. After 6 months of treatment, all patients showed significant improvements in body weight (BW), systolic blood pressure (SBP) and fasting glucose (FG) and glycated hemoglobin (HbA1c) levels. All participants also showed a significant reduction in serum alanine aminotransferase (ALT) levels, from 40.3 +/- 28.0 to 29.0 +/- 14.1 U/L (p < 0.001). Pearson's correlation analysis revealed a positive correlation between the reduction in ALT levels after treatment with the respective SGLT2i and changes in FG (p = 0.014) and HbA1c (p = 0.043) levels over 6 months, but not with changes in BW and SBP. Multiple linear regression analysis revealed that the reduction in serum ALT levels was independently associated with changes in both HbA1c and FG but not with the changes in the other clinical variables, including BW. CONCLUSIONS: Dapagliflozin and empagliflozin improved both metabolic and hepatic dysfunction as a class effect. The amelioration of hepatic dysfunction was mediated partly through an alleviation of hyperglycemia and possibly through an improvement in insulin resistance, independent of BW. PMID- 29322484 TI - Acute low-dose ketamine produces a rapid and robust increase in plasma BDNF without altering brain BDNF concentrations. AB - Peripheral BDNF changes after ketamine administration have been proposed as a biomarker for brain BDNF changes. However, published data are conflicting and come from studies in paired animal groups. This study determined the time course of plasma BDNF concentrations following the administration of a single 10 mg/kg dose of ketamine by different routes of administration in rats. Brain BDNF concentrations in prefrontal cortex, hippocampus and cortex were measured in the same animals. Ketamine administration resulted in a rapid and robust increase in plasma BDNF concentrations that were sustained for 240 min. In contrast, there were no changes in brain BDNF concentrations in prefrontal cortex, hippocampus or cortex and there were no correlations between peripheral and central BDNF concentrations. These data suggest that peripheral BDNF is unlikely to be a useful biomarker of acute central BDNF changes following ketamine. PMID- 29322488 TI - Difficulties with Fine Motor Skills and Cognitive Impairment in an Elderly Population: The Progetto Veneto Anziani. AB - OBJECTIVES: To investigate dysfunction in fine motor skills in a cohort of older Italian adults, identifying their prevalence and usefulness as indicators and predictors of cognitive impairment. DESIGN: Population-based longitudinal study with mean follow-up of 4.4 years. SETTING: Community. PARTICIPANTS: Older men and women enrolled in the Progetto Veneto Anziani (Pro.V.A.) (N = 2,361); 1,243 subjects who were cognitively intact at baseline were selected for longitudinal analyses. MEASUREMENTS: Fine motor skills were assessed by measuring the time needed to successfully complete two functional tasks: putting on a shirt and a manual dexterity task. Cognitive impairment was defined as a Mini-Mental State Examination (MMSE) score less than 24. RESULTS: On simple correlation, baseline MMSE score was significantly associated with the manual dexterity task (correlation coefficient (r) = -0.25, P < .001) and time needed to put on a shirt (r = -0.29, P < .001). Over the study period, changes in time needed to perform the fine motor tasks were significantly associated with changes in MMSE (putting on a shirt: beta = 0.083, P = .003; manual dexterity task: beta = 0.098, P < .001). Logistic regression analyses confirmed that worse results on tasks were associated with cognitive impairment at baseline (odds ratio (OR) = 2.47, 95% confidence interval (CI) = 1.74-3.50, for the fourth quartile of time needed to put on a shirt; OR = 1.98, 95% CI = 1.42-2.76, for the fourth manual dexterity task quartile) and greater risk of cognitive impairment developing during follow up (OR = 4.38, 95% CI = 2.46-7.80, for the fourth quartile of time needed to put on a shirt; OR = 2.20, 95% CI = 1.30-3.72, for the fourth manual dexterity task quartile). CONCLUSIONS: Difficulties with fine motor skills are common in older adults, and assessing them may help to identify early signs of dementia, subjects at high risk to develop cognitive decline, and individuals who can be referred to specialists. PMID- 29322489 TI - Measurement in pediatric epilepsy self-management: A critical review. AB - : Given the paucity of information available regarding self-management, the aims of this paper are to synthesize the literature on factors associated with and measures to assess self-management in pediatric epilepsy. INCLUSION CRITERIA: youth birth to 18 years with a seizure disorder or an epilepsy diagnosis and/or their caregivers, published 1985-2014 in English, and conducted in countries with a very high human development index. The review was conducted in 6 phases: (1) identification of bibliographical search criteria and databases; (2) abstract assessment; (3) full article review; (4) organization of final citations into categories; (5) identification of predictors, potential mediators/moderators, and outcomes associated with self-management factors and categorization of factors as influences, processes, or behaviors across individual, family, community, and health care domains; and (6) critique of self-management instrument studies. Twenty-five studies that evaluated factors associated with self-management were identified. Individual and family-focused factors were the most commonly studied predictors of self-management, with psychosocial care needs and self-efficacy for seizure management identified as key factors associated with pediatric epilepsy self-management. Few studies have included mediator and moderator analyses. Measures of adherence were the most commonly used outcome. There has been a predominant focus on pediatric epilepsy influences and processes that are modifiable in nature, potentially at the expense of evidence for the role of community and health systems in pediatric epilepsy self-management. The 6 self management instrument tools reported scientific rationale and good psychometric properties. Results highlight several key modifiable cognitive and behavioral targets for skills development: adherence, self-efficacy for seizure management, attitudes toward epilepsy, and family variables. Moving forward, a comprehensive pediatric epilepsy self-management model, well-validated measures of self management behaviors, mediator/moderator designs to examine the complex relationships between predictors and pediatric epilepsy self-management outcomes, and studies examining the community and health care domains of self-management are necessary. PMID- 29322490 TI - The rs75932628 and rs2234253 polymorphisms of the TREM2 gene were associated with susceptibility to frontotemporal lobar degeneration in Caucasian populations. AB - Polymorphisms of the triggering receptor expressed on myeloid cells 2 (TREM2) gene have been reported to be potentially associated with the risks of developing frontotemporal lobar degeneration (FTLD), with inconsistent conclusions. This study aims to comprehensively investigate the potential role of TREM2 variants in FTLD risks via a meta-analysis. We included a total of eight eligible articles. For TREM2 rs75932628, we observed a significantly increased FTLD risk in the models of T vs. C [Association Test, odds ratio (OR) = 2.43, 95% confidence interval (CI) = 1.43~4.14, P = 0.001], CT vs. CC (OR = 2.27, 95% CI = 1.39~3.71, P = 0.001), CT + TT vs. CC (OR = 2.27, 95% CI = 1.38~3.71, P = 0.001), and Carrier T vs. C (OR = 2.26, 95% CI = 1.38~3.69, P = 0.001). Similarly, we observed positive results for TREM2 rs2234253 in all of the genetic models (all OR > 1, P = 0.030). Nevertheless, we did not observe any statistical difference between the case and control groups in the pooled analyses of TREM2 rs142232675 and rs143332484 (all P > 0.05). Our findings identified the rs75932628 and rs2234253 polymorphisms of the TREM2 gene as risk factors for FTLD in Caucasian populations. PMID- 29322492 TI - Have we reached the end for throat packs inserted by anaesthetists? PMID- 29322493 TI - The struggle for Via Bologna street market: crisis, racial denial and speaking back to power in Naples Italy. AB - This paper is based on ethnographic research conducted with migrant and Italian street vendors in Naples, southern Italy, in 2012. It tells the story of Via Bologna market which was nearly closed down by the City Hall at the time. Naples is a city where issues of poverty and unemployment pre-date and have been exacerbated by manifold narratives of crisis now unfolding across Europe regarding the economy, political legitimacy, security and migration. Street markets have always been an important and visible economic survival strategy for both Neapolitans and migrants there. This article shows how the Via Bologna street vendors appropriated and adapted discourses about crisis to form their own cosmopolitan social movement that halted the closure of the market. It argues that, in the age of globalized migration, the multilingual nature of such collective action is central to understanding social struggles that must be organized between marginalized groups of people divided by race, religion, politics and legal status. This, frequently ambiguous, transcultural solidarity speaks back against a mainstream post-racial discourse - often articulated by the Neapolitan street vendors at the market - that would reduce the complexity of such collective action to questions of poverty and class struggle. PMID- 29322491 TI - Influence of Prehospital Function and Strength on Outcomes of Critically Ill Older Adults. AB - OBJECTIVES: To understand the influence of prehospital physical function and strength on clinical outcomes of critically ill older adults. DESIGN: Secondary analysis of prospective cohort study. SETTING: Health, Aging and Body Composition (Health ABC) Study. PARTICIPANTS: Of 3,075 older adult Health ABC participants, we identified 575 (60% white, 61% male, mean age 79) with prehospital function or grip strength measurements within 2 years of an intensive care unit stay. MEASUREMENTS: The primary analysis evaluated the association between prehospital walk speed and mortality, and secondary analyses focused on associations between function or grip strength and mortality or hospital length of stay. Function and grip strength were analyzed as continuous and categorical predictors. RESULTS: Slower prehospital walk speed was associated with greater risk of 30-day mortality (for each 0.1 m/s slower, odds ratio = 1.13, 95% confidence interval (CI) = 1.04-1.23, P = .004). Grip strength, chair stands, and balance had weaker, non-statistically significant associations with 30-day mortality. Participants with slower prehospital walk speed (hazard ratio (HR) = 0.94, 95% CI = 0.90-0.98, P = .005) and weak grip strength (HR = 0.85, 95% CI = 0.73-0.99, P = .03) were less likely to be discharged from the hospital alive. All function and strength measures were significantly associated with 1-year mortality. CONCLUSION: Slow prehospital walk speed was strongly associated with greater 30-day mortality and longer hospital stay in critically ill older adults, and measures of function and strength were associated with 1-year mortality. These data add to the accumulating evidence on the relationship between physical function and critical care outcomes. PMID- 29322494 TI - Common Primary and Secondary Causes of Headache in the Elderly. AB - OBJECTIVE/BACKGROUND: Headache in the elderly, defined as individuals aged 65 and older, although less prevalent than younger individuals, can present as a diagnostic challenge, given the increase in potentially fatal diseases within this population. METHODS: These individuals require a complete history, neurological examination, and assessment of potential secondary causes of headaches. RESULTS: Secondary causes include temporal or giant cell arteritis, subdural hematomas, central nervous system (CNS) tumors, strokes, and CNS infections. Once secondary conditions are ruled out, then primary causes of headache are considered such as tension-type headache, migraine, cluster headache, or hypnic headache. CONCLUSION: This article reviews the distinguishing characteristics of the most common types of headache in patients over the age of 65 years old, along with potential diagnostic tests and treatment. PMID- 29322495 TI - Doing better (or worse) than one's parents: Social status, mobility, and performance-avoidance goals. AB - BACKGROUND: Previous research has shown that, when succeeding in higher education, first-generation (FG) students endorse more performance-avoidance goals (i.e., the fear of performing poorly) than continuing-generation (CG) students. AIMS: In this study, individual mobility is examined as a predictor of performance-avoidance goal endorsement. It is argued that FG students endorse more these goals than CG students because in higher education, the former (but not the latter) experience upward mobility. In addition, CG can also be at risk of endorsing these goals when they are confronted with downward mobility. SAMPLE(S): Two studies were conducted with psychology students (N = 143 in Study 1; N = 176 in Study 2). METHODS: In Study 1, FG and CG students' perceived upward mobility was measured. In Study 2, FG and CG students were provided with a feedback that suggested either upward or downward mobility. In both studies, participants reported their level of performance-avoidance goal endorsement. RESULTS: Results from Study 1 supported an indirect effect of status on performance-avoidance goals via a higher perception of upward mobility. Results from Study 2 supported that psychology students who face mobility (i.e., FG students who received better feedback than their usual level of performance, CG students who received worse feedback than their usual level of performance) increased their performance-avoidance goals the most. CONCLUSIONS: Taken together, the results of these studies support that one's actual social position and, even more, the social position one is about to reach are reliable predictors of performance-avoidance goals. PMID- 29322497 TI - Genetics of patella hypoplasia/agenesis. AB - The patella is a sesamoid bone, crucial for knee stability. When absent or hypoplastic, recurrent knee subluxations, patellofemoral dysfunction and early gonarthrosis may occur. Patella hypoplasia/agenesis may be isolated or observed in syndromic conditions, either as the main clinical feature (Nail-patella syndrome, small patella syndrome), as a clue feature which can help diagnosis assessment, or as a background feature that may be disregarded. Even in the latter, the identification of patella anomalies is important for an appropriate patient management. We review the clinical characteristics of these rare diseases, provide guidance to facilitate the diagnosis and discuss how the genes involved could affect patella development. PMID- 29322498 TI - Response to 'Serological diagnostics in the detection of IgG autoantibodies against human collagen VII in epidermolysis bullosa acquisita: a multicentre analysis': reply from authors. PMID- 29322496 TI - WT1 peptide-based immunotherapy for advanced thymic epithelial malignancies. AB - Thymic epithelial tumors are rare malignancies, and no optimal therapeutic regimen has been defined for patients with advanced disease. Patients with advanced thymic epithelial tumors, which were resistant or intolerable to prior therapies, were eligible for this study. Patients received 9 mer-WT1-derived peptide emulsified with Montanide ISA51 adjuvant via intradermal administration once a week as a monotherapy. After the 3-month-protocol treatment, the treatment was continued mostly at intervals of 2-4 weeks until disease progression or intolerable adverse events occurred. Of the 15 patients enrolled, 11 had thymic carcinoma (TC) and 4 had invasive thymoma (IT). Median period from diagnosis to the start of treatment was 13.3 and 65.5 months for TC and IT, respectively. No patients achieved a complete or partial response. Of the 8 evaluable TC patients, 6 (75.0%) had stable disease (SD) and 2 had progressive disease (PD). Of the 4 evaluable IT patients, 3 (75.0%) had SD and 1 (25.0%) had PD. Median period of monotherapy treatment was 133 and 683 days in TC and IT patients, respectively. No severe adverse events occurred during the 3-month-protocol treatment. As adverse events in long responders, thymoma-related autoimmune complications, pure red cell aplasia and myasthenia gravis occurred in two IT patients. Cerebellar hemorrhage developed in a TC patient complicated with Von Willebrand disease. Induction of WT1-specific immune responses was observed in the majority of the patients. WT1 peptide vaccine immunotherapy may have antitumor potential against thymic malignancies. PMID- 29322499 TI - Effect of body weight and behavioural factors on caries severity in Mexican rural and urban adolescents. AB - OBJECTIVES: To investigate if, in Mexican adolescents, body weight and caries severity are associated, and if this association differs between rural and urban populations. METHODS: Adolescents from the rural area of Tepancan and the city of Veracruz were enrolled. Caries was recorded using the International Caries Detection and Assessment System and the body mass index (BMI) was calculated. Oral habits (toothbrushing, flossing, dental check-ups) and dietary patterns (sweets intake) were assessed. A dummy variable between BMI and living area (BMI/Area) was generated. Data were analysed using STATA and a multinomial logistic regression model was run, using caries severity as the dependent variable. RESULTS: Four-hundred and sixty-four subjects, 12-15 years of age, participated (rural = 240; urban = 224). The BMI and area of residence were significantly associated (chi2 = 12.59, P < 0.01). Area was also associated with caries severity (chi2 = 24.23, P < 0.01), with the highest number of caries in dentine recorded in participants from the rural area. The dummy variable BMI/Area was related to caries severity (chi2 = 27.47, P < 0.01): overweight adolescents with caries in dentine were most frequently found in the rural area. A higher prevalence of caries in enamel and a lower prevalence of caries in dentine (P < 0.01) were recorded in adolescents from the urban area, where better oral habits, but higher sweets intake (P = 0.04), were encountered. According to the multinomial logistic regression model, BMI/Area was significantly associated with caries severity (P < 0.01). CONCLUSIONS: Overweight was not associated with caries severity in the overall population, but it became a statistically significant risk indicator in adolescents living in the rural area. PMID- 29322500 TI - Seizure onset predicts its type. AB - OBJECTIVE: Epilepsy is characterized by transient alterations in brain synchronization resulting in seizures with a wide spectrum of manifestations. Seizure severity and risks for patients depend on the evolution and spread of the hypersynchronous discharges. With standard visual inspection and pattern classification, this evolution could not be predicted early on. It is still unclear to what degree the seizure onset zone determines seizure severity. Such information would improve our understanding of ictal epileptic activity and the existing electroencephalogram (EEG)-based warning and intervention systems, providing specific reactions to upcoming seizure types. We investigate the possibility of predicting the future development of an epileptic seizure during the first seconds of recordings after their electrographic onset. METHODS: Based on intracranial EEG recordings of 493 ictal events from 26 patients with focal epilepsy, a set of 25 time and frequency domain features was computed using nonoverlapping 1-second time windows, from the first 3, 5, and 10 seconds of ictal EEG. Three random forest classifiers were trained to predict the future evolution of the seizure, distinguishing between subclinical events, focal onset aware and impaired awareness, and focal to bilateral tonic-clonic seizures. RESULTS: Results show that early seizure type prediction is possible based on a single EEG channel located in the seizure onset zone with correct prediction rates of 76.2 +/- 14.5% for distinguishing subclinical electrographic events from clinically manifest seizures, 75 +/- 16.8% for distinguishing focal onset seizures that are or are not bilateral tonic-clonic, and 71.4 +/- 17.2% for distinguishing between focal onset seizures with or without impaired awareness. All predictions are above the chance level (P < .01). SIGNIFICANCE: These findings provide the basis for developing systems for specific early warning of patients and health care providers, and for targeting EEG-based closed-loop intervention approaches to electrographic patterns with a high inherent risk to become clinically manifest. PMID- 29322501 TI - Response to "Antiretroviral Therapy With Efavirenz in HIV-Infected Pregnant Women: Understanding the Possible Mechanisms for Drug-Drug Interaction". PMID- 29322502 TI - Systematic review of benefits or harms of routine anaesthetist-inserted throat packs in adults: practice recommendations for inserting and counting throat packs: An evidence-based consensus statement by the Difficult Airway Society (DAS), the British Association of Oral and Maxillofacial Surgery (BAOMS) and the British Association of Otorhinolaryngology, Head and Neck Surgery (ENT-UK). AB - Throat packs are commonly inserted by anaesthetists after induction of anaesthesia for dental, maxillofacial, nasal or upper airway surgery. However, the evidence supporting this practice as routine is unclear, especially in the light of accidentally retained throat packs which constitute 'Never Events' as defined by NHS England. On behalf of three relevant national organisations, we therefore conducted a systematic review and literature search to assess the evidence base for benefit, and also the extent and severity of complications associated with throat pack use. Other than descriptions of how to insert throat packs in many standard texts, we could find no study that sought to assess the benefit of their insertion by anaesthetists. Instead, there were many reports of minor and major complications (the latter including serious postoperative airway obstruction and at least one death), and many descriptions of how to avoid complications. As a result of these findings, the three national organisations no longer recommend the routine insertion of throat packs by anaesthetists but advise caution and careful consideration. Two protocols for pack insertion are presented, should their use be judged necessary. PMID- 29322503 TI - Antiretroviral Therapy With Efavirenz in HIV-Infected Pregnant Women: Understanding the Possible Mechanisms for Drug-Drug Interaction. PMID- 29322504 TI - A randomised controlled trial comparing needle movements during combined spinal epidural anaesthesia with and without ultrasound assistance. AB - Ultrasound assistance for neuraxial techniques may improve technical performance; however, it is unclear which populations benefit most. Our study aimed to investigate the efficacy of neuraxial ultrasound in women having caesarean section with combined spinal-epidural anaesthesia, and to identify factors associated with improved technical performance. Two-hundred and eighteen women were randomly allocated to ultrasound-assisted or control groups. All the women had a pre-procedure ultrasound, but only women in the ultrasound group had this information conveyed to the anaesthetist. Primary outcomes were first-pass success (a single needle insertion with no redirections) and procedure difficulty. Secondary outcomes were block quality, patient experience and complications. Exploratory sub-group analysis and regression analysis were used to identify factors associated with success. Data from 215 women were analysed. First-pass success was achieved in 67 (63.8%) and 42 (38.2%) women in the ultrasound and control groups, respectively (adjusted p = 0.001). Combined spinal epidural anaesthesia was 'difficult' in 19 (18.1%) and 33 (30.0%) women in the ultrasound and control groups, respectively (adjusted p = 0.09). Secondary outcomes did not differ significantly. Anaesthetists misidentified the intervertebral level by two or more spaces in 23 (10.7%) women. Sub-group analysis demonstrated a benefit for ultrasound in women with easily palpable spinous processes (adjusted p = 0.027). Regression analysis identified use of ultrasound and easily palpable spinous processes to be associated with first-pass success. PMID- 29322506 TI - Relationship between alpha-melanocyte stimulating hormone levels and therapeutic outcome of melanocyte transplantation and phototherapy in non-segmental patients with vitiligo: A prospective study. PMID- 29322505 TI - Impact of bistrand abasic sites and proximate orientation on DNA global structure and duplex energetics. AB - Bistrand lesions embedded within a single helical turn of tridecameric deoxyoligonucleotide duplexes represent a model system for exploring the impact of clustered lesions that occur in vivo and pose a significant challenge to cellular repair machineries. Such investigations are essential for understanding the forces that dictate lesion-induced mutagenesis, carcinogenesis, and cytotoxicity within a context that mimics local helical perturbations caused by an ionizing radiation event. This study characterizes the structural and energy profiles of DNA duplexes harboring synthetic abasic sites (tetrahydrofuran, F) as models of clustered bistrand abasic (AP) lesions. The standard tridecameric dGCGTACCCATGCG.dCGCATGGGTACGC duplex is employed to investigate the energetic impact of single and bistrand AP sites by strategically replacing one or two bases within the central CCC/GGG triplet. Our combined analysis of temperature dependent UV and circular dichroism (CD) profiles reveals that the proximity and relative orientation of AP sites within bistrand-damaged duplexes imparts a significant thermodynamic impact. Specifically, 3'-staggered lesions (CCF/GFG) exert a greater destabilizing effect when compared with their 5'-counterpart (FCC/GFG). Moreover, a duplex harboring the central bistrand AP lesion (CFC/GFG) is moderately destabilized yet exhibits distinct properties relative to both the 3' and 5'-orientations. Collectively, our energetic data are consistent with structural studies on bistrand AP-duplexes of similar sequence in which a 3' staggered lesion exerts the greatest perturbation, a finding that provides significant insight regarding the impact of orientation on lesion repair processing efficiency. PMID- 29322507 TI - Adherence to Mediterranean Diet Reduces Incident Frailty Risk: Systematic Review and Meta-Analysis. AB - OBJECTIVES: To conduct a systematic review of the literature on prospective cohort studies examining associations between adherence to a Mediterranean diet and incident frailty and to perform a meta-analysis to synthesize the pooled risk estimates. DESIGN: Systematic review and meta-analysis. SETTING: Embase, MEDLINE, CINAHL, PsycINFO, and Cochrane Library were systematically searched on September 14, 2017. We reviewed references of included studies and relevant review papers and performed forward citation tracking for additional studies. Corresponding authors were contacted for additional data necessary for a meta-analysis. PARTICIPANTS: Community-dwelling older adults (mean age >=60). MEASUREMENTS: Incident frailty risk according to adherence to a Mediterranean diet. RESULTS: Two reviewers independently screened the title, abstract, and full text to ascertain the eligibility of 125 studies that the systematic search of the literature identified, and four studies were included (5,789 older people with mean follow-up of 3.9 years). Two reviewers extracted data from the studies independently. All four studies provided adjusted odds ratios (ORs) of incident frailty risk according to three Mediterranean diet score (MDS) groups (0-3, 4-5, and 6-9). Greater adherence to a Mediterranean diet was associated with significantly lower incident frailty risk (pooled OR = 0.62, 95% CI = 0.47-0.82, P = .001 for MDS 4-5; pooled OR = 0.44, 95% CI = 0.31-0.64, P < .001 for MDS 6-9) than poorer adherence (MDS 0-3). Neither significant heterogeneity (I2 = 0-16%, P = .30) nor evidence of publication bias was observed. CONCLUSION: Greater adherence to a Mediterranean diet is associated with significantly lower risk of incident frailty in community-dwelling older people. Future studies should confirm these findings and evaluate whether adherence to a Mediterranean diet can reduce the risk of frailty, including in non-Mediterranean populations. PMID- 29322508 TI - A novel homozygous variant in BMPR1B underlies acromesomelic dysplasia Hunter Thompson type. AB - Acromesomelic dysplasia is genetically heterogeneous group of skeletal disorders characterized by short stature and acromelia and mesomelia of limbs. Acromesomelic dysplasia segregates in an autosomal recessive pattern and is caused by biallelic sequence variants in three genes (NPR2, GDF5, and BMPR1B). A consanguineous family of Pakistani origin segregating a subtype of acromesomelic dysplasia called Hunter-Thompson was clinically and genetically evaluated. Genotyping of microsatellite markers and linkage analysis revealed a 7.78 Mb homozygous region on chromosome 4q22.3, which harbors BMPR1B. Sequence analysis of the gene revealed a novel homozygous missense variant (c.1190T > G, p.Met397Arg) that segregates with the disease phenotype within the family and produced a Logarithm of odds (LOD) score of 3.9 with the disease phenotype. This study reports on the first familial case of acromesomelic dysplasia Hunter Thompson type. It is also the first report of BMPR1B underlying the etiology of acromesomelic dysplasia Hunter-Thompson type. PMID- 29322509 TI - Identity fusion predicts endorsement of pro-group behaviours targeting nationality, religion, or football in Brazilian samples. AB - A visceral feeling of oneness with a group - identity fusion - has proven to be a stronger predictor of pro-group behaviours than other measures of group bonding, such as group identification. However, the relationship between identity fusion, other group alignment measures and their different roles in predicting pro-group behaviour is still controversial. Here, we test whether identity fusion is related to, but different from, unidimensional and multidimensional measures of group identification. We also show that identity fusion explains further variance of the endorsement of pro-group behaviour than these alternative measures and examine the structural and discriminant properties of identity fusion and group identification measures in three different contexts: nationality, religion, and football fandom. Finally, we extend the fusion literature to a new culture: Brazil. To the best of our knowledge, this is the first research explicitly addressing a comparison between these two forms of group alignment, identity fusion and identification with a group, and their role in predicting pro-group behaviours. PMID- 29322511 TI - Discrimination, religious and cultural factors, and Middle Eastern/Arab Americans' psychological distress. AB - OBJECTIVE(S): We investigated (1) the moderating role of religiosity in the link between religious affiliation and ethnic discrimination and (2) the moderating roles of religiosity, ethnic identity, and family connectedness in the relations between ethnic discrimination and psychological distress. METHOD: Our sample consisted of 122 (60% women, 40% men) Middle Eastern/Arab Americans (MEAAs), ranging in age from 18 to 82 years old, who completed an online survey. RESULTS: Muslim identification predicted discrimination for MEAAs with high but not low religiosity. Higher levels of discrimination, more family connectedness, the interaction of discrimination and religiosity, and the interaction of discrimination and family connectedness were unique predictors of psychological distress. CONCLUSIONS: Religiosity is a risk factor for experiencing ethnic discrimination among Muslim identified MEAAs. MEAAs who have high religiosity and low to moderate levels of family connectedness are vulnerable to psychological distress associated with ethnic discrimination. PMID- 29322510 TI - Lolium perenne peptide immunotherapy is well tolerated and elicits a protective B cell response in seasonal allergic rhinitis patients. AB - BACKGROUND: Systemic allergic reactions are a risk for allergen immunotherapy that utilizes intact allergen preparations. We evaluated the safety, efficacy and immune mechanisms of short-course treatment with adjuvant-free Lolium perenne peptides (LPP) following a 6-week dose-escalation protocol. METHODS: In a prospective, dose-escalation study, 61 grass pollen-allergic patients received 2 subcutaneous injections of LPP once weekly for 6 weeks. Safety was assessed evaluating local reactions, systemic reactions and adverse events. The clinical effect of LPP was determined by reactivity to the conjunctival provocation test (CPT). Specific IgE, IgG4 and blocking antibodies were measured at baseline (V1), during (V6) and after treatment (V8). RESULTS: No fatality, serious adverse event or epinephrine use was reported. Mean wheal diameters after injections were <0.6 cm and mean redness diameters <2.5 cm, independent of dose. Transient and mostly mild adverse events were reported in 33 patients. Two patients experienced a grade I and 4 patients a grade II reaction (AWMF classification). At V8, 69.8% of patients became nonreactive to CPT. sIgG4 levels were higher at V6 (8.1-fold, P < .001) and V8 (12.2-fold, P < .001) than at V1. The sIgE:sIgG4 ratio decreased at V6 (-54.6%, P < .001) and V8 (-71.6%, P < .001) compared to V1. The absolute decrease in IgE-facilitated allergen binding was 18% (P < .001) at V6 and 25% (P < .001) at V8. CONCLUSION: Increasing doses of subcutaneous LPP appeared safe, substantially diminished reactivity to CPT and induced blocking antibodies as early as 4 weeks after treatment initiation. The benefit/risk balance of LPP immunotherapy remains to be further evaluated in large studies. PMID- 29322512 TI - Serum inflammatory markers in relation to prostate cancer severity and death in the Swedish AMORIS study. AB - Inflammation is a well-documented driver of cancer development and progression. However, little is known about its role in prostate carcinogenesis. Thus, we examined the association of C-reactive protein (CRP), haptoglobin, albumin and white blood cells (WBC) with prostate cancer (PCa) severity (defined by PCa risk category and clinicopathological characteristics) and progression (defined by PCa death). We selected 8,471 Swedish men with newly diagnosed PCa who had exposure measurements taken approximately 14 years prior to diagnosis. We calculated odds ratio (OR) and 95% confidence interval (CI) for the associations between the inflammatory markers and PCa severity using logistic regression, while Cox proportional hazard regression was used for the associations with overall and PCa death. Serum CRP levels were associated with increased odds of high risk and metastatic PCa, and high PSA levels (>=20 ug/L) (OR: 1.29; 95% CI: 1.06-1.56, 1.32; 1.05-1.65 and 1.51; 1.26-1.81, respectively). Similarly, higher haptoglobin levels were associated with increased odds of metastatic PCa, high PSA level and possibly high grade PCa (1.38; 1.10-1.74, 1.50; 1.17-1.93 and 1.25; 1.00-1.56, respectively). Albumin was positively associated with Gleason 4 + 3 tumour (1.38; 1.02-1.86) and overall death (HRunit increase in log : 1.60; 95% CI: 1.11-2.30), but inversely associated with high risk PCa and high PSA levels (>=20 ug/L) (0.71; 0.56-0.89 and 0.72; 0.5 9-0.90). WBC was associated with increased odds of T3-T4 PCa. Except for albumin, none of these markers were associated with PCa death or overall death. Systemic inflammation as early as 14 years prior to diagnosis may influence prostate cancer severity. PMID- 29322513 TI - Periodontitis and cancer mortality: Register-based cohort study of 68,273 adults in 10-year follow-up. AB - Periodontitis, a multifactorial infection-induced low-grade chronic inflammation, can influence the process of carcinogenesis. We studied with 10 years follow-up of 68,273 adults-based cohort the involvement of periodontitis as a risk factor for cancer mortality. Periodontal status was defined based on procedure codes of periodontal treatment. Rate ratios and absolute differences of overall and cancer mortality rates were assessed with respect to periodontal status using multiplicative and additive Poisson regression models, respectively. We adjusted for effect of age, sex, calendar time, socio-economic status, oral health, dental treatments and diabetes. Data about smoking or alcohol consumption were not available. Altogether 797 cancer deaths occurred during 664,020 person-years accumulated over a mean 10.1-year follow-up. Crude cancer mortality rate per 10,000 person-years for participants without and with periodontitis was 11.36 (95% CI 10.47-12.31) and 14.45 (95% CI 12.51-16.61), respectively. Crude rate ratios for periodontitis indicated an increased risk of overall (RR 1.27, 95% CI 1.08-1.39) and pancreatic cancer (RR 1.69, 95% CI 1.04-2.76) mortality. After adjustment, the results showed even stronger associations of periodontitis with increased overall (RR 1.33, 95% CI 1.10-1.58) and pancreatic cancer (RR 2.32, 95% CI 1.31-3.98) mortality. A higher pancreatic cancer mortality among individuals with periodontitis contributed considerably to the difference in overall cancer mortality, but this difference was not due to pancreatic cancer deaths alone. PMID- 29322514 TI - The Yin and Yang of YY1 in tumor growth and suppression. AB - Yin Yang-1 (YY1) is a zinc finger protein and member of the GLI-Kruppel family that can activate or inactivate gene expression depending on interacting partners, promoter context and chromatin structure, and may be involved in the transcriptional control of ~10% of the total mammalian gene set. A growing body of literature indicates that YY1 is overexpressed in multiple cancer types and that increased YY1 levels correlate with poor clinical outcomes in many cancers. However, the role of YY1 in the promotion or suppression of tumor growth remains controversial and its regulatory effects may be tumor cell type dependent at least in experimental systems. The molecular mechanisms responsible for the apparently conflicting roles of YY1 are not yet fully elucidated. This review highlights recent advances in our understanding of regulatory insights involving YY1 function in a range of cancer types. For example, YY1's roles in tumor growth involve stabilization of hypoxia-inducible factor HIF-1alpha in a p53 independent manner, negative regulation of miR-9 transcription, control of MYCT1 transcription, a novel miR-193a-5p-YY1-APC axis, intracellular ROS and mitochondrial superoxide generation, p53 reduction and EGFR activation, control of genes associated with mitochondrial energy metabolism and miRNA regulatory networks involving miR-7, miR-9, miR-34a, miR-186, miR-381, miR-584-3p and miR 635. On the other hand, tumor suppressor roles of YY1 appear to involve YY1 stimulation of tumor suppressor BRCA1, increased Bax transcription and apoptosis involving cytochrome c release and caspase-3/-7 cleavage, induction of heme oxygenase-1, inhibition of pRb phosphorylation and p21 binding to cyclin D1 and cdk4, reduced expression of long noncoding RNA of SOX2 overlapping transcript, and MUC4/ErbB2/p38/MEF2C-dependent downregulation of MMP-10. YY1 expression is associated with that of cancer stem cell markers SOX2, BMI1 and OCT4 across many cancers suggesting multidynamic regulatory control and groups of cancers with distinct molecular signatures. Greater understanding of the mechanistic roles of YY1 will in turn lead to the development of more specific approaches to modulate YY1 expression and activity with therapeutic potential. PMID- 29322515 TI - Current practices in perioperative blood management for patients undergoing liver resection: a survey of surgeons and anesthesiologists. AB - BACKGROUND: Development of intraoperative techniques and blood management strategies in liver resection, and the multidisciplinary nature of perioperative transfusion decision making, creates an opportunity for practice variation. The aim of this study was to describe the current practices in perioperative blood management and explore differences between surgeons and anesthesiologists. STUDY DESIGN AND METHODS: A Web-based survey was developed, piloted, and circulated to Canadian liver surgeons and anesthesiologists. The survey focused on management of preoperative anemia, blood conservation strategies, estimation of blood loss, and transfusion decision making in a multidisciplinary setting. RESULTS: A total of 198 physicians received the survey, with 117 responding (59%). Most responding surgeons (67%) perform more than 20 liver resections per year, while most responding anesthesiologists (90%) take part in fewer than 20. Anesthesiologists most commonly stated that preoperative anemia is managed by someone else (38%), while surgeons most commonly reported "no specific treatment" (45%). The most common intraoperative blood conservation technique used is administration of antifibrinolytics (63% used them at least occasionally). The most important factor for anesthesiologists when deciding on an intraoperative transfusion was hemoglobin value (47%); for surgeons, it was patient hemodynamics (33%). Compared to when they started their career, 60% of respondents felt that they were less likely to transfuse a patient now. CONCLUSION: The results of our survey provide insights into current transfusion practice and decision making in liver resection, including a comparison between anesthesiologist and surgeon transfusion behavior. Management of preoperative anemia, increased use of intraoperative blood conservation techniques, and improved communication between providers were identified as targets for quality improvement. PMID- 29322516 TI - A fully analytical integration of properties over the 3D volume of the beta sphere in topological atoms. AB - Atomic multipole moments associated with a spherical volume fully residing within a topological atom (i.e., the beta sphere) can be obtained analytically. Such an integration is thus free of quadrature grids. A general formula for an arbitrary rank spherical harmonic multipole moment is derived, for an electron density comprising Gaussian primitives of arbitrary angular momentum. The closed expressions derived here are also sufficient to calculate the electrostatic potential, the two types of kinetic energy, as well as the potential energy between atoms. Some integrals have not been solved explicitly before but through recursion and substitution are broken down to more elementary listed integrals. The proposed method is based on a central formula that shifts Gaussian primitives from one center to another, which can be derived from the well-known plane-wave expansion (or Rayleigh equation). (c) 2018 The Authors. Journal of Computational Chemistry Published by Wiley Periodicals, Inc. PMID- 29322517 TI - Discordant human T-lymphotropic virus screening with Western blot confirmation: evaluation of the dual-test algorithm for US blood donations. AB - BACKGROUND: Human T-lymphotropic virus (HTLV) blood donation screening has used a dual-testing algorithm beginning with either a chemiluminescent immunoassay or enzyme-linked immunosorbent screening assay (ELISA). Before the availability of a licensed HTLV supplemental assay, repeat-reactive (RR) samples on a first assay (Assay 1) were retested with a second screening assay (Assay 2). Donors with RR results by Assay 2 were deferred from blood donation and further tested using an unlicensed supplemental test to confirm reactivity while nonreactive (NR) donors remained eligible for donation until RR on a subsequent donation. This "dual test" algorithm was replaced in May 2016 with the requirement that all RRs by Assay 1 be further tested by a licensed HTLV supplemental test (Western blot [WB]). In this study, we have requalified the dual-test algorithm using the available licensed HTLV WB. STUDY DESIGN AND METHODS: We tested 100 randomly selected HTLV RRs on screening Assay 1 (Abbott PRISM chemiluminescent immunoassay) but NR on screening Assay 2 (Avioq ELISA) by a Food and Drug Administration-licensed WB (MP Biomedicals) to ensure that no confirmed positives were among those that were RR by Assay 1 but NR by Assay 2. RESULTS: Of the 100 samples evaluated, 79 of 100 were WB seronegative, 21 of 100 indeterminate, and 0 of 100 seropositive. Of the 79 of 100 seronegative specimens, 73 of 79 did not express any bands on WB. CONCLUSIONS: We demonstrated that none of the 100 samples RR on Assay 1 but NR on Assay 2 were confirmed positive. This algorithm prevents such donors from requiring further testing and from being deferred. PMID- 29322518 TI - Pediatric heart transplantation-What are the risk factors for pacemaker implantation and how much pacing is required? AB - BACKGROUND: In an attempt to improve pacemaker therapy after pediatric transplantation, we investigated risk factors, indication for pacing, and pacing burden after pediatric heart transplantation. METHODS AND RESULTS: In this retrospective study, 139 pediatric heart transplant recipients, of whom 122 did not and 17 did require pacemakers, were investigated. Eleven of the 17 patients requiring a permanent pacemaker (PPM) received their heart from a female donor (68.8%); this compares to 48 of 122 patients (43.2%, P = 0.082) in the group not requiring a pacemaker (No PPM). The donor age and height were significantly greater in the PPM group at a median of 25.26 years (16.29-48.00) and 160 cm (153 170) compared with 11.96 years (1.73-19.95) and 141 cm (89-165) in the No PPM group (P = 0.003 and 0.015, respectively). Of the 17 patients requiring pacemakers, 13 presented with sinus node dysfunction (SND) and four with atrioventricular block. The atrial pacing burden in patients with SND remained above 60% within the 5 years of follow-up investigated. There was no significant difference in mortality between those patients requiring a PPM and those not (Log Rank test: P = 0.672). CONCLUSION: We found that in our cohort donor characteristics were key risk factors for pacemaker implantation in transplanted children. The data suggest that when patients require a pacemaker in posttransplant SND, they will require a relevant amount of pacing for at least 5 years. The pacing burden after this point remains to be investigated. Mortality does not differ between pediatric heart transplant patients with and without pacemakers. PMID- 29322520 TI - Muscle cooling: too much of a good thing? PMID- 29322519 TI - Inactivation of chikungunya virus in blood components treated with amotosalen/ultraviolet A light or amustaline/glutathione. AB - BACKGROUND: Chikungunya virus, a mosquito-borne arbovirus, often co-circulates with the Zika, dengue, and yellow fever viruses in Aedes mosquito-infested areas where cases of arbovirus transfusion-transmitted infections have been reported. Building on past experience to help maintain the availability of safe components during major outbreaks of chikungunya virus in La Reunion, Italy, and Thailand and of Zika virus in the Pacific, the Caribbean, and the Americas, pathogen inactivation is a mitigation strategy to reduce the risk of transfusion transmitted infection. Inactivation of chikungunya virus was investigated for platelets in 100% plasma using amotosalen/ultraviolet A light, and in red blood cells using amustaline/glutathione. STUDY DESIGN AND METHODS: Platelets in 100% plasma and red blood cells (RBCs) were spiked with chikungunya virus. Infectious chikungunya virus titers were measured in contaminated blood products before and after treatment with amotosalen/ultraviolet A light for platelets in 100% plasma and after treatment with amustaline/glutathione for RBCs. Viral infectivity was quantified by plaque assay. RESULTS: The mean chikungunya virus infectivity titers before inactivation were 6.50 log10 plaque-forming units/mL for platelets in 100% plasma and 7.60 log10 plaque-forming units/mL for RBCs. No infectivity was detected after amotosalen/ultraviolet A light or amustaline/glutathione treatment, corresponding to greater than 6.5 log10 plaque-forming units/mL and greater than 7.1 log10 plaque-forming units/mL of inactivation, respectively. CONCLUSION: Robust levels of chikungunya virus inactivation were achieved for platelets in 100% plasma and for RBC components. The licensed amotosalen/ultraviolet A light technology and the amustaline/glutathione pathogen reduction system under development may provide an opportunity for comprehensive mitigation of the risk of chikungunya virus transfusion-transmitted infection by plasma, platelets, and RBCs. PMID- 29322521 TI - Fitting unanchored puzzle pieces in the skeleton: appropriate 3D scapular positions for the quadrupedal support in tetrapods. AB - Deducing the scapular positions of extinct tetrapod skeletons remains difficult, because the scapulae and rib cage are connected with each other not directly by skeletal joint, but by thoracic muscles. In extant non-testudine quadrupedal tetrapods, the top positions of the scapulae/suprascapulae occur at the anterior portion of the rib cage, above the vertebral column and near the median plane. The adequacy of this position was tested using three-dimensional mechanical models of Felis, Rattus and Chamaeleo that assumed stances on a forelimb on a single side and the hindlimbs. The net moment about the acetabulum generated by the gravity force and the contractive forces of the anti-gravity thoracic muscles, and the resistance of the rib to vertical compression between the downward gravity and upward lifting force from the anti-gravity thoracic muscle depend on the scapular position. The scapular position common among quadrupeds corresponds to the place at which the roll and yaw moments of the uplifted portion of the body are negligible, where the pitch moment is large enough to lift the body, and above the ribs having high strength against vertical compression. These relationships between scapular position and rib cage morphology should allow reliable reconstruction of limb postures of extinct taxa. PMID- 29322522 TI - Eye-specific segregation and differential fasciculation of developing retinal ganglion cell axons in the mouse visual pathway. AB - Prior to forming and refining synaptic connections, axons of projection neurons navigate long distances to their targets. While much is known about guidance cues for axon navigation through intermediate choice points, whether and how axons are organized within tracts is less clear. Here we analyze the organization of retinal ganglion cell (RGC) axons in the developing mouse retinogeniculate pathway. RGC axons are organized by both eye-specificity and topography in the optic nerve and tract: ipsilateral RGC axons are segregated from contralateral axons and are offset laterally in the tract relative to contralateral axon topographic position. To identify potential cell-autonomous factors contributing to the segregation of ipsilateral and contralateral RGC axons in the visual pathway, we assessed their fasciculation behavior in a retinal explant assay. Ipsilateral RGC neurites self-fasciculate more than contralateral neurites in vitro and maintain this difference in the presence of extrinsic chiasm cues. To further probe the role of axon self-association in circuit formation in vivo, we examined RGC axon organization and fasciculation in an EphB1-/- mutant, in which a subset of ipsilateral RGC axons aberrantly crosses the midline but targets the ipsilateral zone in the dorsal lateral geniculate nucleus on the opposite side. Aberrantly crossing axons retain their association with ipsilateral axons in the contralateral tract, indicating that cohort-specific axon affinity is maintained independently of guidance signals present at the midline. Our results provide a comprehensive assessment of RGC axon organization in the retinogeniculate pathway and suggest that axon self-association contributes to pre-target axon organization. PMID- 29322524 TI - A comprehensive analysis of neurotrophins and neurotrophin tyrosine kinase receptors expression during development of zebrafish. AB - Neurotrophins (NTF) are a family of secreted nerve growth factors with affinity for tyrosine kinase (Ntrk) and p75 receptors. To fully understand the variety of developmental roles played by NTFs, it is critical to know when and where genes encoding individual ligands and receptors are transcribed. Identification of ntf and ntrk transcripts in zebrafish development remains to be fully characterized for further uncovering the potential function(s) of the NTF signal transduction pathway. Here, we conducted a systematic analysis of the expression profiles of four ntf and five ntrk genes during zebrafish development using whole-mount in situ hybridization. Our study unveils new expression domains in the developing embryo, confirms those previously known, and shows that ntf and ntrk genes have different degrees of cell- and tissue-type specificity. The unique and overlapping expression patterns here depicted indicate the coordination of the redundant and divergent functions of NTFs and represent valuable tools for deciphering the molecular pathways involved in the specification and function of embryonic cell types. PMID- 29322525 TI - Zika virus RNA polymerase chain reaction on the utility channel of a commercial nucleic acid testing system. AB - BACKGROUND: Several countries have implemented safety strategies to reduce the risk of Zika virus (ZIKV) transmission through blood transfusion. These strategies have included nucleic acid amplification testing (NAT) of blood donations. In this study, a new real-time polymerase chain reaction (PCR) assay including internal control for the detection of ZIKV on the cobas omni Utility Channel (UC) on the cobas 6800 system is presented. STUDY DESIGN AND METHODS: PCR conditions and primer/probe concentrations were optimized on the LightCycler 480 instrument. Optimized conditions were transferred to the cobas omni UC on the cobas 6800 system. Subsequently, the limit of detection (LOD) in plasma and urine, genotype inclusivity, specificity, cross-reactivity, and clinical sensitivity were determined. RESULTS: The 95% LOD of the ZIKV PCR assay on the cobas 6800 system was 23.0 IU/mL (95% confidence interval [CI], 16.5-37.5) in plasma and 24.5 IU/mL (95% CI, 13.4-92.9) in urine. The assay detected African and Asian lineages of ZIKV. The specificity was 100%. The clinical concordance between the newly developed ZIKV PCR assay and the investigational Roche cobas Zika NAT test was 83% (24/29). CONCLUSIONS: We developed a sensitive ZIKV PCR assay on the cobas omni UC on the cobas 6800 system. The assay can be used for large-scale screening of blood donations for ZIKV or for testing of blood donors returning from areas with ZIKV to avoid temporal deferral. This study also demonstrates that the cobas omni UC on the cobas 6800 system can be used for in house-developed PCR assays. PMID- 29322523 TI - Prevalence of pollen-induced allergic rhinitis with high pollen exposure in grasslands of northern China. AB - BACKGROUND: The aim of this study was to investigate the prevalence of epidemiologic and physician-diagnosed pollen-induced AR (PiAR) in the grasslands of northern China and to study the impact of the intensity and time of pollen exposure on PiAR prevalence. METHODS: A multistage, clustered and proportionately stratified random sampling with a field interviewer-administered survey study was performed together with skin prick tests (SPT) and measurements of the daily pollen count. RESULTS: A total of 6043 subjects completed the study, with a proportion of 32.4% epidemiologic AR and 18.5% PiAR. The prevalence was higher in males than females (19.6% vs 17.4%, P = .024), but no difference between the two major residential and ethnic groups (Han and Mongolian) was observed. Subjects from urban areas showed higher prevalence of PiAR than rural areas (23.1% vs 14.0%, P < .001). Most PiAR patients were sensitized to two or more pollens (79.4%) with artemisia, chenopodium, and humulus scandens being the most common pollen types, which were similarly found as the top three sensitizing pollen allergens by SPT. There were significant regional differences in the prevalence of epidemiologic AR (from 18.6% to 52.9%) and PiAR (from 10.5% to 31.4%) among the six areas investigated. PiAR symptoms were positively associated with pollen counts, temperature, and precipitation (P < .05), but negatively with wind speed and pressure P < .05). CONCLUSION: Pollen-induced AR (PiAR) prevalence in the investigated region is extremely high due to high seasonal pollen exposure, which was influenced by local environmental and climate conditions. PMID- 29322526 TI - How are the charge transfer descriptors affected by the quality of the underpinning electronic density? AB - With the aim of investigating qualitatively and quantitatively the impact of using excited state relaxed or unrelaxed density for the estimation of nature and characteristic of electronic excited states, we analyzed the behavior of 52 exchange correlation functionals for the prediction of density-based indexes such as those recently introduced in literature to evaluate the charge transfer distance (DCT ) (Le Bahers et al. J. Chem. Theory Comput. 2011, 7, 2498) in the case of a prototype family of push-pull dyes. Our results show that while a qualitatively consistent assessment of the nature of the excited states is obtained using either the unrelaxed or the relaxed density, from a quantitative standpoint we observe large discrepancies in the charge transfer distance for electronic transitions having substantial CT character. This behavior is independent of nature of the exchange-correlation functional used. (c) 2018 Wiley Periodicals, Inc. PMID- 29322527 TI - Thalamo-cortical projections to the macaque superior parietal lobule areas PEc and PE. AB - The exposed surface of the superior parietal lobule in macaque brain contains two architectonically defined areas named PEc and PE. The aim of the present study is the characterization of thalamic afferents of these two areas. For this purpose, retrograde neuronal tracers were injected, or placed in crystal form, in areas PEc and PE. We found that the two areas show a similar pattern of thalamic inputs, mainly originating from Lateral Posterior (LP), Pulvinar (Pul), Ventral Posterior Lateral (VPL), and Ventral Lateral (VL) nuclei, all structures known to be involved in visual, somatosensory, and/or sensorimotor processing. Minor afferents were observed from the Centromedian/Parafascicular complex (CM/PF), Central Lateral (CL), Ventral Anterior (VA), and Medial Dorsal (MD) nuclei. LP and VL were more strongly connected to PEc than to PE, while the other main thalamic inputs to the two areas showed slight differences in strength. The part of the Pul mostly connected with areas PEc and PE was the Medial Pul. No labeled cells were found in the retinotopically organized Lateral and Inferior Pul. In the somatotopically organized VPL and VL nuclei, labeled neurons were mainly found in regions likely to correspond to the trunk and limb representations (in particular the legs). These findings are in line with the sensory-motor nature of areas PEc and PE, and with their putative functional roles, being them suggested to be involved in the preparation and control of limb interaction with the environment, and in locomotion. PMID- 29322529 TI - Therapeutic action and aesthetic experience: Resonance and reorganization. AB - Is there an aesthetic dimension to therapeutic action? The author proposes that while the arts, in this example, dance, can serve as a bridge to give form and expression to the ineffable for both the artist and the observer, language, especially metaphorical language, in the context of a resonating therapeutic relationship, similarly gives form and enhanced meaning to what has been felt but not yet understood. Even if the content is painful, the process of mutually creating a common language that reorganizes the mind is aesthetically pleasing. PMID- 29322528 TI - MR and CT data with multiobserver delineations of organs in the pelvic area-Part of the Gold Atlas project. AB - PURPOSE: We describe a public dataset with MR and CT images of patients performed in the same position with both multiobserver and expert consensus delineations of relevant organs in the male pelvic region. The purpose was to provide means for training and validation of segmentation algorithms and methods to convert MR to CT like data, i.e., so called synthetic CT (sCT). ACQUISITION AND VALIDATION METHODS: T1- and T2-weighted MR images as well as CT data were collected for 19 patients at three different departments. Five experts delineated nine organs for each patient based on the T2-weighted MR images. An automatic method was used to fuse the delineations. Starting from each fused delineation, a consensus delineation was agreed upon by the five experts for each organ and patient. Segmentation overlap between user delineations with respect to the consensus delineations was measured to describe the spread of the collected data. Finally, an open-source software was used to create deformation vector fields describing the relation between MR and CT images to further increase the usability of the dataset. DATA FORMAT AND USAGE NOTES: The dataset has been made publically available to be used for academic purposes, and can be accessed from https://zenodo.org/record/583096. POTENTIAL APPLICATIONS: The dataset provides a useful source for training and validation of segmentation algorithms as well as methods to convert MR to CT-like data (sCT). To give some examples: The T2 weighted MR images with their consensus delineations can directly be used as a template in an existing atlas-based segmentation engine; the expert delineations are useful to validate the performance of a segmentation algorithm as they provide a way to measure variability among users which can be compared with the result of an automatic segmentation; and the pairwise deformably registered MR and CT images can be a source for an atlas-based sCT algorithm or for validation of sCT algorithm. PMID- 29322531 TI - A study to evaluate the primary causes associated with Pseudomonas otitis in 60 dogs. AB - OBJECTIVES: To evaluate the primary causes, age of onset and time from diagnosis of otitis to development of Pseudomonas otitis in each case. MATERIALS AND METHODS: Data from clinical records of 60 dogs were extracted to address the study objectives. Pseudomonas otitis was diagnosed by clinical signs and positive culture. RESULTS: In total, 57 purebred dogs and three crossbreed dogs were included: 32 dogs had unilateral and 28 bilateral disease. Underlying primary causes of otitis were allergy (42), masses (8), endocrine disease (7) and autoimmune disease (3). The mean age of onset of otitis (and subsequent time to development of Pseudomonas otitis) in dogs with allergic otitis was 40 months (28 months), with endocrine disease was 56 months (19 months) and masses 99 months (10 months). CLINICAL SIGNIFICANCE: The most common primary causes of otitis in dogs with Pseudomonas infections are, in decreasing frequency: allergies, masses, endocrine disease and autoimmune disease. Secondary infections with Pseudomonas developed more quickly if there was a mass or autoimmune disease, as compared with allergies and endocrinopathies. PMID- 29322530 TI - Chromium(III) release from chromium-tanned leather elicits allergic contact dermatitis: a use test study. AB - BACKGROUND: Chromium (Cr) is a common skin sensitizer. The use of Cr(VI) in leather is restricted in the EU, but that of Cr(III) is not. OBJECTIVES: To assess whether prolonged exposure to Cr-tanned leather with mainly Cr(III) release may elicit allergic contact dermatitis in Cr-allergic individuals. METHOD: Ten Cr-allergic subjects and 22 controls were patch tested with serial dilutions of Cr(III) and Cr(VI), and with leather samples. They then conducted a use test with a Cr-tanned and a Cr-free leather bracelet over a period of 3 weeks, for 12 h per day. Cr deposited on the skin from the bracelets was measured in the controls, and the diphenylcarbazide test for Cr(VI) and extraction tests for Cr(III) and Cr(VI) were conducted for the different leathers. RESULTS: Four of 10 Cr-allergic subjects developed positive reactions to the Cr-tanned bracelet within 7-21 days, whereas only 1 of 10 had a positive patch test reaction to this leather. Cr released from the Cr-tanned leather was most probably entirely Cr(III), with a quantifiable amount being deposited on the skin. CONCLUSIONS: This study strongly suggests that prolonged and repeated exposure to Cr-tanned leather with mainly Cr(III) release is capable of eliciting allergic contact dermatitis in Cr-allergic individuals. PMID- 29322533 TI - Serenity: A subsystem quantum chemistry program. AB - We present the new quantum chemistry program Serenity. It implements a wide variety of functionalities with a focus on subsystem methodology. The modular code structure in combination with publicly available external tools and particular design concepts ensures extensibility and robustness with a focus on the needs of a subsystem program. Several important features of the program are exemplified with sample calculations with subsystem density-functional theory, potential reconstruction techniques, a projection-based embedding approach and combinations thereof with geometry optimization, semi-numerical frequency calculations and linear-response time-dependent density-functional theory. (c) 2018 Wiley Periodicals, Inc. PMID- 29322532 TI - Factors associated with p-phenylenediamine sensitization: data from the Information Network of Departments of Dermatology, 2008-2013. AB - BACKGROUND: Risk factors for p-phenylenediamine (PPD) sensitization include the use of hair dyes, the application of temporary black henna tattoos, working as a hairdresser, and, possibly, exposure to hair dye pretests. OBJECTIVES: To quantify the impact of these (putative) risk factors on PPD sensitization. METHODS: Six items related to PPD exposure were added to the routine Information Network of Departments of Dermatology questionnaire from 2008 to 2013. A retrospective analysis of data from 4314 patients tested with PPD 1% pet. was conducted. RESULTS: Of the PPD-positive patients (n = 271), 80% had their hair dyed, and, of these, 57% subsequently developed scalp dermatitis, whereas only 11% had had a henna tattoo. The self-administrated pretest with hair dye was performed by only a few patients, precluding a more detailed analysis. Hair dyeing [odds ratio (OR) 6.0; 95% confidence interval (CI): 3.9-9.4], henna tattoos (OR 2.4; 95%CI: 1.5-3.7) and being a hairdresser (OR 2.1; 95%CI: 1.3-3.2) increased the risk of PPD sensitization. Neither dyeing of own hair nor application of a temporary henna tattoo seemed to affect PPD sensitization in hairdressers. p-Aminoaryl compounds more often gave positive reactions in patients with henna tattoo. CONCLUSIONS: Hair dyeing is the major risk factor for PPD sensitization in this clinical setting, and application of a temporary black henna tattoo may also lead to (strong) PPD sensitization. PMID- 29322534 TI - Current controversies in prenatal diagnosis 1: All prenatally detected lower urinary tract obstructions should be shunted. PMID- 29322535 TI - Anatomy of the upper respiratory tract in domestic birds, with emphasis on vocalization. AB - This work reviews the anatomy of the upper respiratory tract in domestic birds including the chicken and pigeon. Non-exhaustive additional information on other bird species, illustrating the extraordinary diversity in the biological class Aves, can be found in several footnotes. The described anatomical structures are functionally considered in view of avian sound production. In particular, the Syrinx is invaluable. Its most important structures are the Labia and the lateral and medial tympaniform membranes in non-songbirds and songbirds, respectively. These structures produce sound by vibrating during expiration and eventually inspiration. PMID- 29322536 TI - Two-step estimation in ratio-of-mediator-probability weighted causal mediation analysis. AB - This study investigates appropriate estimation of estimator variability in the context of causal mediation analysis that employs propensity score-based weighting. Such an analysis decomposes the total effect of a treatment on the outcome into an indirect effect transmitted through a focal mediator and a direct effect bypassing the mediator. Ratio-of-mediator-probability weighting estimates these causal effects by adjusting for the confounding impact of a large number of pretreatment covariates through propensity score-based weighting. In step 1, a propensity score model is estimated. In step 2, the causal effects of interest are estimated using weights derived from the prior step's regression coefficient estimates. Statistical inferences obtained from this 2-step estimation procedure are potentially problematic if the estimated standard errors of the causal effect estimates do not reflect the sampling uncertainty in the estimation of the weights. This study extends to ratio-of-mediator-probability weighting analysis a solution to the 2-step estimation problem by stacking the score functions from both steps. We derive the asymptotic variance-covariance matrix for the indirect effect and direct effect 2-step estimators, provide simulation results, and illustrate with an application study. Our simulation results indicate that the sampling uncertainty in the estimated weights should not be ignored. The standard error estimation using the stacking procedure offers a viable alternative to bootstrap standard error estimation. We discuss broad implications of this approach for causal analysis involving propensity score-based weighting. PMID- 29322537 TI - Comparative evaluations of hypertrophic scar formation in in vivo models. AB - BACKGROUND AND OBJECTIVE: Hypertrophic scar (HTS) results from a connective tissue reaction to trauma, inflammation, surgery, or burn on skin. In spite of various techniques for wound generation, the degree of scar in animal models after healing is still unpredictable and less reproducible. The objective of the current study was to identify the appropriate method to create the maximal HTS tissue in a reliable manner by comparing three different methods in vivo. MATERIALS AND METHODS: A 27 ICR mice were tested for the in vivo evaluations. Three different methods were applied to develop wounds on the back of each mice for quantitative evaluations on collagen formation: Group 1 (thermal burn), Group 2 (chemical burn), and Group 3 (physical punch). After injury, each lesion was photographed to examine physical variations in the wound areas. Histological analysis was conducted on days 0, 7, and 28 to assess the extent of the injury in the tissue and to quantitatively compare the amount of collagen formation after wound healing. RESULTS: Compared with Groups 1 and 3, Group 2 demonstrated the largest wound area that gradually decreased with healing time. However, the minimal axial damage (along tissue depth) occurred to Group 2 at day 0 (183.7 +/- 28.9, 38.1 +/- 9.2, and 296.0 +/- 81.7 um for Groups 1, 2, and 3, respectively). After 28 days, all the groups showed the complete healing and accompanied a significant increase in the number of fibroblast and collagen generation with well-oriented and denser collagen fibers, in comparison with normal skin. Group 2 yielded twice thicker skin (both epidermis and dermis) than the other groups (970.8 +/- 108.8 um for Group 2 vs. 381.5 +/- 30.8 um for Group 1 and 442.9 +/- 56.3 um for Group 3; P < 0.001). CONCLUSION: The proposed chemical burn can be the optimal method to create collagenous scar tissue in the mouse model. Further in vivo investigations with rat models will be performed to validate the current technique for laser scar treatment in terms of reliability and immunohistochemical responses. Lasers Surg. Med. 9999:XX-XX, 2017. (c) 2017 Wiley Periodicals, Inc. PMID- 29322538 TI - Predicting reduction potentials of 1,3,6-triphenyl fulvenes using molecular electrostatic potential analysis of substituent effects. AB - The influence of mono- and multiple substituent effect on the reduction potential (E0 ) of 1,3,6-triphenyl fulvenes is investigated using B3LYP-SMD/6-311+G(d,p) level density functional theory. The molecular electrostatic potential (MESP) minimum at the fulvene pi-system (Vmin ) and the change in MESP at any of the fulvene carbon atoms (DeltaVC ) for both neutral and reduced forms are used as excellent measures of substituent effect from the para and meta positions of the 1,3 and 6-phenyl moieties. Substitution at 6-phenyl para position has led to significant change in E0 than any other positions. By applying the additivity rule of substituent effects, an equation in DeltaVC is derived to predict E0 for multiply substituted fulvenes. Further, E0 is predicted for a set of 2000 hexa substituted fulvene derivatives where the substituents and their positions in the system are chosen in a random way. The calculated E0 agreed very well with the experimental E0 reported by Godman et al. Predicting E0 solely by substituent effect offers a simple and powerful way to select suitable combinations of substituents on fulvene system for light harvesting applications. (c) 2018 Wiley Periodicals, Inc. PMID- 29322539 TI - Inhaled corticosteroid use to prevent severe vaso-occlusive episode recurrence in children between 1 and 4 years of age with sickle cell disease: a multicenter feasibility trial. PMID- 29322540 TI - Review article: coeliac disease in later life must not be missed. AB - BACKGROUND: The presenting symptoms of coeliac disease are often subtle and the diagnosis is frequently delayed or overlooked. Therefore, especially elderly patients may be denied the benefits conferred by gluten free diet which can be dramatically life-changing. AIM: To review the occurrence, clinical features, diagnosis and management in coeliac patients detected later in life. METHODS: To review manuscripts concerned with coeliac disease in the elderly and to derive subgroups of elderly people from publications on the disorder. RESULTS: Approximately a quarter of all diagnoses are now made at the age of 60 years or more and a fifth at 65 years or over. About 4% are diagnosed at 80 years or above. Around 60% remain undetected, since their symptoms are often subtle: tiredness, indigestion, reduced appetite. Good compliance with gluten free diet, resolution of symptoms and improvement in laboratory indices can be achieved in over 90% of patients. CONCLUSIONS: Coeliac disease not uncommonly presents for the first time in older patients and is an important diagnosis to make. PMID- 29322541 TI - In case you missed it: The Prenatal Diagnosis editors bring you the most significant advances of 2017. PMID- 29322542 TI - A nonparametric method to detect increased frequencies of adverse drug reactions over time. AB - Signal detection is routinely applied to spontaneous report safety databases in the pharmaceutical industry and by regulators. As an example, methods that search for increases in the frequencies of known adverse drug reactions for a given drug are routinely applied, and the results are reported to the health authorities on a regular basis. Such methods need to be sensitive to detect true signals even when some of the adverse drug reactions are rare. The methods need to be specific and account for multiplicity to avoid false positive signals when the list of known adverse drug reactions is long. To apply them as part of a routine process, the methods also have to cope with very diverse drugs (increasing or decreasing number of cases over time, seasonal patterns, very safe drugs versus drugs for life-threatening diseases). In this paper, we develop new nonparametric signal detection methods, directed at detecting differences between a reporting and a reference period, or trends within a reporting period. These methods are based on bootstrap and permutation distributions, and they combine statistical significance with clinical relevance. We conducted a large simulation study to understand the operating characteristics of the methods. Our simulations show that the new methods have good power and control the family-wise error rate at the specified level. Overall, in all scenarios that we explored, the method performs much better than our current standard in terms of power, and it generates considerably less false positive signals as compared to the current standard. PMID- 29322543 TI - Effect of eptifibatide on inflammation during acute pain episodes in sickle cell disease. PMID- 29322544 TI - Role of bisphenol A as environmental factor in the promotion of non-alcoholic fatty liver disease: in vitro and clinical study. AB - BACKGROUND: Bisphenol A is an endocrine disrupting chemical associated with type 2 diabetes mellitus (T2DM), cardiovascular disease and liver enzyme abnormalities. AIM: To evaluate bisphenol A plasma and urine levels in non alcoholic fatty liver disease (NAFLD) patients compared to healthy subjects. Furthermore, we evaluated, in human HepG2 cells, the effects of exposure to different concentrations of bisphenol A on both oxidative stress induction and cell proliferation. METHODS: We enrolled 60 patients with histological diagnosis of NAFLD with or without T2DM and sixty healthy subjects. In vitro, the proliferation of bisphenol A-exposed HepG2 cells at two different concentrations (0.025 and 0.05 MUM) was evaluated, both at high (H-HepG2) and at low (L-HepG2) glucose concentrations for 48 h. Lipoperoxidation was assessed by thiobarbituric acid reactive substances (TBARS) assay. RESULTS: Bisphenol A levels were significantly higher in 60 NAFLD subjects, both in urine and in plasma (P < 0.0001) when compared to controls and, in this group, it appeared to be higher in 30 non-alcoholic steatohepatitis patients compared to 30 simple steatosis subjects (P < 0.05), independently from the presence of T2DM. After a bisphenol A free diet for 1 month, NAFLD patients showed a significant reduction in bisphenol A circulating levels (P < 0.05), without a significant reduction in urine levels. H-HepG2 cells treated with bisphenol A (0.05 MUM) increased proliferation compared to controls at 48 h (P < 0.0001). Bisphenol A increased TBARS levels at 48 h versus controls. CONCLUSIONS: Our study reveals a possible role of bisphenol A as an environmental factor involved in the promotion of NAFLD, particularly in T2DM patients. PMID- 29322545 TI - Acute toxicity of Corexit EC9500A and assessment of dioctyl sulfosuccinate as an indicator for monitoring four oil dispersants applied to diluted bitumen. AB - The present study investigated oil dispersant toxicity to fish species typical of the cooler regions of Canada, together with less well-documented issues pertaining to oil dispersant monitoring. The oil dispersant toxicity of Corexit EC9500A was assessed for the freshwater fish species rainbow trout and the seawater species coho, chinook, and chum, with a final median lethal concentration (LC50) acute lethality range between 35.3 and 59.8 mg/L. The LC50 range was calculated using confirmed 0-h dispersant concentrations that were justified by fish mortality within the first 24 h of exposure and by variability of the dispersant indicator dioctyl sulfosuccinate (DOSS) used to monitor concentrations at later time points. To investigate DOSS as an oil dispersant indicator in the environment, microcosm systems were prepared containing Corexit EC9500A, Finasol OSR52, Slickgone NS, and Slickgone EW dispersants together with diluted bitumen. The DOSS indicator recovery was found to be stable for up to 13 d at 5 degrees C, 8 d at 10 degrees C, but significantly less than 8 d at >=15 degrees C. After 3 d at temperatures >=15 degrees C, the DOSS indicator recovery became less accurate and was dependent on multiple environmental factors including temperature, microbial activity, and aeration, with potential for loss of solvents and stabilizers. A final assessment determined DOSS to be a discrepant indicator for long-term monitoring of oil dispersant in seawater. Environ Toxicol Chem 2018;37:1309-1319. (c) 2018 SETAC. PMID- 29322546 TI - Simulation of the effect of an external GHz electric field on the potential energy profile of Ca2+ ions in the selectivity filter of the CaV Ab channel. AB - CaV channels are transmembrane proteins that mediate and regulate ion fluxes across cell membranes, and they are activated in response to action potentials to allow Ca2+ influx. Since ion channels are composed of charge or polar groups, an external alternating electric field may affect the ion-selective membrane transport and the performance of the channel. In this article, we have investigated the effect of an external GHz electric field on the dynamics of calcium ions in the selectivity filter of the CaV Ab channel. Molecular dynamics (MD) simulations and the potential of mean force (PMF) calculations were carried out, via the umbrella sampling method, to determine the free energy profile of Ca2+ ions in the CaV Ab channels in presence and absence of an external field. Exposing CaV Ab channel to 1, 2, 3, 4, and 5 GHz electric fields increases the depth of the potential energy well and this may result in an increase in the affinity and strength of Ca2+ ions to binding sites in the selectivity filter the channel. This increase of strength of Ca2+ ions binding in the selectivity filter may interrupt the mechanism of Ca2+ ion conduction, and leads to a reduction of Ca2+ ion permeation through the CaV Ab channel. PMID- 29322547 TI - Improvement of the salvage-rate of flap after venous thrombosis with intraparenchymatous venous pressure monitoring. AB - PURPOSE: Intraparenchymatous venous pressure (IVP) monitoring in flap can measure venous pressure with catheter placement. Among patients with IVP monitoring, this study reviewed postoperative microvascular complications for investigating the transplanted-tissue salvage-rate. PATIENTS AND METHODS: Two hundred and seventy one patients (male, 132; female, 139; mean age, 52.3 years; age range, 9-82 years) underwent free flap transfer and postoperative continuous IVP monitoring, which performed as follows; a venous catheter was connected to a transducer, and venous pressure in the flap was recorded for three consecutive days postoperatively. The threshold of alarm for elevated venous pressure was set at 50 mm Hg. When abnormal measurements or fluctuation were observed, the vascular anastomotic site was exposed immediately. The flap salvage-rate of non-IVP monitoring group (n = 393; male, 305; female, 81; mean age, 61.3 years; age range, 23-83 years), which were confirmed by a portable ultrasonographic device, was compared with that of IVP-monitoring group. RESULTS: Twenty-one patients developed postoperative microvascular complications at the vascular anastomosis sites. Sensitivity rate of IVP monitoring was 86%; specificity rate, 96%; positive predictive value rates, 64%; negative predictive value rate, 99%; false positive rate, 4%. The flap salvage-rate was 83% in venous thrombosis cases and only 33% in arterial thrombosis cases. In non-IVP monitoring group, flap salvage rate was 20% with arterial thrombosis and 36% with venous thrombosis, resulting in an increasing the salvage-rate (P = .021). CONCLUSIONS: IVP monitoring could visualize and quantify venous pressure waves in flap and detect early microvascular complications, resulting in a marked improvement in the graft tissue salvage-rate. PMID- 29322548 TI - Validation study of the hoehn and yahr scale included in the MDS-UPDRS. PMID- 29322549 TI - Noise properties of proton density fat fraction estimated using chemical shift encoded MRI. AB - PURPOSE: The purpose of this work is to characterize the noise distribution of proton density fat fraction (PDFF) measured using chemical shift-encoded MRI, and to provide alternative strategies to reduce bias in PDFF estimation. THEORY: We derived the probability density function for PDFF estimated using chemical shift encoded MRI, and found it to exhibit an asymmetric noise distribution that contributes to signal-to-noise-ratio dependent bias. METHODS: To study PDFF noise bias, we performed (at 1.5 T) numerical simulations, phantom acquisitions, and a retrospective in vivo experiment. In each experiment, we compared the performance of three statistics (mean, median, and maximum likelihood estimator) in estimating the PDFF in a region of interest. RESULTS: We demonstrated the presence of the asymmetric noise distribution in simulations, phantoms, and in vivo. In each experiment we demonstrated that both the median and proposed maximum likelihood estimator statistics outperformed the mean statistic in mitigating noise-related bias for low signal-to-noise-ratio acquisitions. CONCLUSIONS: Characterization of the noise distribution of PDFF estimated using chemical shift-encoded MRI enabled new strategies based on median and maximum likelihood estimator statistics to mitigate noise-related bias for accurate PDFF measurement from a region of interest. Such strategies are important for quantitative chemical shift-encoded MRI applications that typically operate in low signal-to-noise-ratio regimes. Magn Reson Med 80:685-695, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29322550 TI - Hyposalivation and 10-year all-cause mortality in an elderly Japanese population. AB - OBJECTIVE: To evaluate the association of salivary flow rate with all-cause mortality among older Japanese adults. We hypothesised that hyposalivation would be a marker for mortality. BACKGROUND: Hyposalivation, which is an objectively measurable decrease in salivary flow, is highly prevalent among older adults. It is associated with malnutrition and poor general health. METHODS: The study population comprised 600 community-dwelling Japanese adults (306 men and 294 women), who were 70 years old at baseline. They underwent stimulated salivary flow rate (SSFR) measurements and were followed up during a 10-year study period. After stratification by sex, the hazard ratios of all-cause mortality were estimated using Cox proportional hazards regression analysis comparing groups with and without hyposalivation (ie, SSFR < 0.7 mL/min). RESULTS: The baseline prevalence of hyposalivation was 27.8% (85/306) among men and 47.3% (139/294) among women. During a mean (standard deviation) follow-up period of 104 (27) months, 80 deaths occurred: 60 (75.0%) deaths among men and 20 (25.0%) deaths among women. After adjusting for the number of remaining teeth, smoking status, exercise, hypoalbuminemia, diabetes and cardiovascular disease, hyposalivation at baseline was significantly associated with all-cause mortality among men (adjusted hazard ratio, 1.71; 95% confidence interval, 1.01-2.89). In contrast, no association between SSFR and all-cause mortality existed among women. CONCLUSION: Hyposalivation could be a marker for all-cause mortality among older community-dwelling Japanese men. Future studies investigating the association between SSFR and cause-specific mortality are warranted. PMID- 29322552 TI - Gene-gene and gene-environment interactions in complex traits in yeast. AB - One of the fundamental questions in biology is how the genotype regulates the phenotype. An increasing number of studies indicate that, in most cases, the effect of a genetic locus on the phenotype is context-dependent, i.e. it is influenced by the genetic background and the environment in which the phenotype is measured. Still, the majority of the studies, in both model organisms and humans, that map the genetic regulation of phenotypic variation in complex traits primarily identify additive loci with independent effects. This does not reflect an absence of the contribution of genetic interactions to phenotypic variation, but instead is a consequence of the technical limitations in mapping gene-gene interactions (GGI) and gene-environment interactions (GEI). Yeast, with its detailed molecular understanding, diverse population genomics and ease of genetic manipulation, is a unique and powerful resource to study the contributions of GGI and GEI in the regulation of phenotypic variation. Here we review studies in yeast that have identified GGI and GEI that regulate phenotypic variation, and discuss the contribution of these findings in explaining missing heritability of complex traits, and how observations from these GGI and GEI studies enhance our understanding of the mechanisms underlying genetic robustness and adaptability that shape the architecture of the genotype-phenotype map. PMID- 29322551 TI - Improving parallel imaging by jointly reconstructing multi-contrast data. AB - PURPOSE: To develop parallel imaging techniques that simultaneously exploit coil sensitivity encoding, image phase prior information, similarities across multiple images, and complementary k-space sampling for highly accelerated data acquisition. METHODS: We introduce joint virtual coil (JVC)-generalized autocalibrating partially parallel acquisitions (GRAPPA) to jointly reconstruct data acquired with different contrast preparations, and show its application in 2D, 3D, and simultaneous multi-slice (SMS) acquisitions. We extend the joint parallel imaging concept to exploit limited support and smooth phase constraints through Joint (J-) LORAKS formulation. J-LORAKS allows joint parallel imaging from limited autocalibration signal region, as well as permitting partial Fourier sampling and calibrationless reconstruction. RESULTS: We demonstrate highly accelerated 2D balanced steady-state free precession with phase cycling, SMS multi-echo spin echo, 3D multi-echo magnetization-prepared rapid gradient echo, and multi-echo gradient recalled echo acquisitions in vivo. Compared to conventional GRAPPA, proposed joint acquisition/reconstruction techniques provide more than 2-fold reduction in reconstruction error. CONCLUSION: JVC-GRAPPA takes advantage of additional spatial encoding from phase information and image similarity, and employs different sampling patterns across acquisitions. J-LORAKS achieves a more parsimonious low-rank representation of local k-space by considering multiple images as additional coils. Both approaches provide dramatic improvement in artifact and noise mitigation over conventional single-contrast parallel imaging reconstruction. Magn Reson Med 80:619-632, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29322553 TI - Systematic reviews versus narrative reviews in clinical anatomy: Methodological approaches in the era of evidence-based anatomy. AB - Two main types of review articles with distinct characteristics and goals are commonly found in the scientific literature: systematic reviews and narrative (also called expert or traditional) reviews. Narrative reviews are publications that describe and discuss the state of science on a specific topic or theme from a theoretical and contextual point of view with little explicit structure for gathering and presenting evidence. Systematic reviews are overviews of the literature undertaken by identifying, critically appraising and synthesizing the results of primary research studies using an explicit methodological approach. With the recent rise of evidence-based anatomy, important questions arise with respect to the utility of narrative reviews in clinical anatomy. The goal of this perspective article is to address the key differences between narrative and systematic reviews in the context of clinical anatomy, to provide guidance on which type of review is most appropriate for a specific issue, and to summarize how the two types of reviews can work in unison to enhance the quality of anatomical research and its delivery to clinicians and anatomists alike. Clin. Anat. 31:364-367, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29322554 TI - Transcription factor Foxc1 is involved in anterior part of cranial base formation. AB - The cranial base is a structure mainly formed through endochondral ossification and integrated into the craniofacial complex, which acts as an underlying platform for the developing brain. Foxc1 is an indispensable regulator during intramembranous and endochondral ossification. In this study, we found that the spontaneous loss of Foxc1 function in a mouse (congenital hydrocephalous), Foxc1ch/ch , demonstrated the anterior cranial base defects, including unossified presphenoid and lack of middle part of the basisphenoid bone. Hypoplastic presphenoid primordial cartilage (basal portion of the trabecular cartilage [bTB]) and a lack of the middle part of basisphenoid primordial cartilage (the hypophyseal cartilage) were consistently observed at earlier developmental stage. Foxc1 was expressed robustly and ubiquitously in undifferentiated mesenchyme of the cranial base-forming area in E11.0 wild-type fetuses. Once chondrogenesis commenced, the expression was downregulated and later limited to the perichondrium. Detection of transcripts of Collagen type2 A1 (Col2a1) revealed that both bTB and the anterior part of the hypophyseal cartilage developing anterior to the persistent epithelial stalk of the anterior lobe of the pituitary gland were suppressed in the Foxc1ch/ch . Proliferation activity of chondrocyte precursor cells was higher in the Foxc1ch/ch . Loss of Foxc1 function only in the neural crest cell lineage (Wnt1-cre;Foxc1ch/flox ) showed ossification of the posterior part of the hypophyseal cartilage derived from the mesoderm. These findings suggest that Foxc1 is an important regulator to further chondrogenesis and initiate the ossification of the presphenoid and basisphenoid bones. PMID- 29322555 TI - Evaluating Factors Impacting Medication Adherence Among Rural, Urban, and Suburban Populations. AB - PURPOSE: To evaluate differences in prescription medication adherence rates, as well as influencing factors, in rural and urban adults. METHODS: This is a retrospective analysis of the 2015 National Consumer Survey on the Medication Experience and Pharmacists' Role. A total of 26,173 participants completed the survey and provided usable data. Participants using between 1 and 30 prescription medications and living more than 0 miles and up to 200 miles from their nearest pharmacy were selected for the study, resulting in a total of 15,933 participants. Data from the 2010 US Census and Rural Health Research Center were used to determine the population density of each participant's ZIP code. Participant adherence to reported chronic medications was measured based on the 8 item Morisky Medication Adherence Scale (MMAS-8). FINDINGS: Overall adherence rates did not differ significantly between rural and urban adults with average adherence based on MMAS-8 scores of 5.58 and 5.64, respectively (P = .253). Age, income, education, male sex, and white race/ethnicity were associated with higher adherence rates. While the overall adherence rates between urban and rural adults were not significantly different, the factors that influenced adherence varied between age-specific population density groupings. CONCLUSION: These analyses suggest that there is no significant difference in adherence between rural and urban populations; however, the factors contributing to medication adherence may vary based on age and population density. Future adherence intervention methods should be designed with consideration for these individualized factors. PMID- 29322556 TI - Relationships between lewy and tau pathologies in 375 consecutive non-Alzheimer's olfactory bulbs. PMID- 29322558 TI - "The Masks We Wear": A Qualitative Study of Suicide in Australian Farmers. AB - PURPOSE: Farmer suicide is a major public issue in Australia. Using the psychological autopsy method, this study aimed to examine the life and death circumstances of Australian male farmers who died by suicide through verbal reports from their close significant others. METHODS: Individual semistructured interviews were conducted with 12 relatives of male farmers who had died by suicide in Queensland or New South Wales, Australia (2006-2014). This study followed the COREQ checklist criteria for the reporting of qualitative research. FINDINGS: Six interrelated themes were identified: (1) masculinity, (2) uncertainty and lack of control in farming, (3) feelings of failure in relationships and farming, (4) escalating health problems, (5) maladaptive coping, and (6) acquired capability with access to means. CONCLUSIONS: Effective clinical interventions, as well as suicide prevention strategies, need to consider the importance of 3 key issues in suicide among farmers: adherence to masculine norms and socialization; expectations of self in maintaining family traditions and occupation; and a male subtype of depression. PMID- 29322557 TI - Veni, vidi, vici: the success of wtf meiotic drivers in fission yeast. AB - Meiotic drivers are selfish DNA loci that can bias their own transmission into gametes. Owing to their transmission advantages, meiotic drivers can spread in populations even if the drivers or linked variants decrease organismal fitness. Meiotic drive was first formally described in the 1950s and is thought to be a powerful force shaping eukaryotic genomes. Classic genetic analyses have detected the action of meiotic drivers in plants, filamentous fungi, insects and vertebrates. Several of these drive systems have limited experimental tractability and relatively little is known about the molecular mechanisms of meiotic drive. Recently, however, meiotic drivers were discovered in a yeast species. The Schizosaccharomyces pombe wtf gene family contains several active meiotic drive genes. This review summarizes what is known about the wtf family and highlights its potential as a highly tractable experimental model for molecular and evolutionary characterization of meiotic drive. PMID- 29322559 TI - CEST-Dixon for human breast lesion characterization at 3 T: A preliminary study. AB - PURPOSE: Chemical exchange saturation transfer (CEST) MRI for breast lesion characterization is promising. However, artifacts are prone to develop in breast CEST imaging as a result of strong lipid signals. The aims of the study are (i) to develop and validate the CEST-Dixon imaging sequence for simultaneous water fat separation and B0 mapping; and (ii) use the CEST-Dixon method to characterize suspicious lesions in patients undergoing percutaneous biopsy. METHODS: The gradient-echo multi-echo Dixon acquisition is used to create fat-free CEST and B0 maps. The sequence has been validated in phantoms and in vivo. Five healthy volunteers and 10 patients were scanned to compare the CEST contrast in three frequency ranges centered at 1, 2, and 3.5 ppm. The correlation between the CEST contrast and pathology markers (tumor type, estrogen receptor (ER) status, and Ki 67) was also investigated by stratifying the patients into ER-negative invasive ductal carcinoma (IDC) (more aggressive), ER-positive IDC (less aggressive), and benign groups. RESULTS: The CEST-Dixon sequence shows homogenous fat removal in the water-only images. The ER-negative IDC tissues display a trend to higher CEST contrast in all three frequency ranges, whereas the ER-positive IDC, benign, and normal tissues have lower CEST contrast. No significant differences were observed among the ER-positive IDC, benign, and normal tissues. Of the three frequencies ranges, the CEST contrasts at 1 ppm are high in the ER-negative IDC group, have the largest difference among the ER-negative IDC and the other groups, and have the highest correlation with Ki-67. CONCLUSION: Breast CEST-Dixon imaging shows potential to differentiate more aggressive from less aggressive cancers. Magn Reson Med 80:895-903, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29322560 TI - Fast nonlinear susceptibility inversion with variational regularization. AB - PURPOSE: Quantitative susceptibility mapping can be performed through the minimization of a function consisting of data fidelity and regularization terms. For data consistency, a Gaussian-phase noise distribution is often assumed, which breaks down when the signal-to-noise ratio is low. A previously proposed alternative is to use a nonlinear data fidelity term, which reduces streaking artifacts, mitigates noise amplification, and results in more accurate susceptibility estimates. We hereby present a novel algorithm that solves the nonlinear functional while achieving computation speeds comparable to those for a linear formulation. METHODS: We developed a nonlinear quantitative susceptibility mapping algorithm (fast nonlinear susceptibility inversion) based on the variable splitting and alternating direction method of multipliers, in which the problem is split into simpler subproblems with closed-form solutions and a decoupled nonlinear inversion hereby solved with a Newton-Raphson iterative procedure. Fast nonlinear susceptibility inversion performance was assessed using numerical phantom and in vivo experiments, and was compared against the nonlinear morphology-enabled dipole inversion method. RESULTS: Fast nonlinear susceptibility inversion achieves similar accuracy to nonlinear morphology enabled dipole inversion but with significantly improved computational efficiency. CONCLUSION: The proposed method enables accurate reconstructions in a fraction of the time required by state-of-the-art quantitative susceptibility mapping methods. Magn Reson Med 80:814-821, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29322562 TI - Pure 21q22.3 deletion identified in a patient with mild phenotypic features. PMID- 29322561 TI - Effect of an oxygen-generating scaffold on the viability and insulin secretion function of porcine neonatal pancreatic cell clusters. AB - BACKGROUND: Islet encapsulation techniques have shown limited success in maintaining islet survival and function because encapsulation decreases oxygen supply. In this study, an oxygen-generating scaffold was fabricated to prevent hypoxic cell damage and improve the viability and insulin secretion of islets. METHODS: We fabricated an oxygen-generating scaffold by mixing calcium peroxide (CaO2 ) with polydimethylsiloxane (PDMS). We evaluated the effects of the oxygen generating PDMS + CaO2 scaffold on viability, caspase-3 and caspase-7 activity, oxygen consumption rate (OCR), glucose-stimulated insulin secretion (GSIS), hypoxic cell marker expression, and reactive oxygen species (ROS) levels in porcine neonatal pancreatic cell clusters (NPCCs). We also fabricated a microfluidic device that allowed measuring the effects of the oxygen-generating scaffold on viability. RESULTS: Oxygen generation by the PDMS + CaO2 scaffold was sustained for more than 24 hours in vitro. NPCCs encapsulated in PDMS + CaO2 showed higher viability than NPCCs in PDMS scaffolds and control NPCCs grown without a scaffold. PDMS + CaO2 -encapsulated NPCCs showed lower caspase-3 and caspase-7 activity, hypoxic cell expression, and ROS levels, and higher OCR and GSIS than those in PDMS or control cells. Using the microfluidic device, we observed that the viability of PDMS + CaO2 -encapsulated NPCCs was higher than that of PDMS-encapsulated NPCCs. CONCLUSIONS: NPCCs in PDMS + CaO2 scaffolds show higher viability and insulin secretion than do NPCCs in PDMS scaffolds and control cells. Therefore, this oxygen-generating scaffold has potential for application in future islet transplantation studies. PMID- 29322563 TI - Microfluidics-based LC-MS MRM approach for the relative quantification of Burkholderia cenocepacia secreted virulence factors. AB - Burkholderia cenocepacia is an opportunistic pathogen that is commonly isolated from patients with cystic fibrosis (CF). Several virulence factors have been identified, including extracellular enzymes that are secreted by type II and type VI secretion systems. The activity of these secretion systems is modulated by quorum sensing. Apart from the classical acylhomoserine lactone quorum sensing, B. cenocepacia also uses the diffusible signal factor system (DSF) i.e. 2 undecenoic acid derivatives that are recognized by specific receptors resulting in changes in biofilm formation, motility and virulence. However, quantitative information on alterations in the actual production and release of virulence factors upon exposure to DSF is lacking. We here describe an approach implementing microfluidics based chromatography combined with single reaction monitoring to quantify protein virulence factors in the secretome of B. cenocepacia. PMID- 29322564 TI - Can fortified foods and snacks increase the energy and protein intake of hospitalised older patients? A systematic review. AB - BACKGROUND: Undernutrition affects over 44% of hospitalised older people, who often dislike oral nutritional supplements (ONS). This review summarises the evidence for an alternative strategy, using energy and protein dense meals (via fortification) or snacks (supplementation) to increase the dietary energy and protein intake of older inpatients. METHODS: A search was conducted through PubMed, EMBASE, CINAHL and the Cochrane database of systematic reviews (May 1996 to May 2016) that used fortification or supplementation to increase the energy or protein intake of patients (mean age >=60 years) in hospitals or rehabilitation centres. RESULTS: Ten articles (546 patients, mean age 60-83 years) were identified. Compared with usual nutritional care, six studies using either energy or protein based fortification and supplementation significantly increased intake of energy (250-450 kcal day-1 ) or protein (12-16 g day-1 ). Two studies enriched menus with both energy and protein, and significantly increased both energy (698 kcal day-1 and 21 kJ kg-1 ) and protein (16 g and 0.2 g kg-1 ) intake compared to usual care. ONS was similar to supplementation in one study but superior to fortification in another. Four studies reported good acceptability of enriched products and two studies that found they were cost-effective. CONCLUSIONS: Compared with usual nutritional care, energy- and protein-based fortification and supplementation could be employed as an effective, well-tolerated and cost effective intervention to improve dietary intake amongst older inpatients. This strategy may be particularly useful for patients with cognitive impairment who struggle with ONS, and clinical trials are required to compare these approaches and establish their impact on functional outcomes. PMID- 29322565 TI - On the Variable Reactivity of Phosphine-Functionalized [Ge9 ] Clusters: Zintl Cluster-Substituted Phosphines or Phosphine-Substituted Zintl Clusters. AB - The reaction of [(Ge9 {Si(TMS)3 }2 PtBu2 )]- with NHCMes CuCl yields [(Ge9 {Si(TMS)3 }2 )(tBu2 P)]Cu(NHCMes ) (1), which is a new derivative of the recently reported monomeric zwitterionic tetrel cluster compounds [(Ge9 {Si(TMS)3 }2 )(tBu2 P)]M(NHCDipp ) (M: Cu, Ag, Au). By contrast, the reaction of the same anion [(Ge9 {Si(TMS)3 }2 PtBu2 )]- with the more labile copper phosphine complex Cy3 PCuCl leads to the formation of [Ge9 {Si(TMS)3 }2 {(tBu)2 PCu}2 Ge9 {Si(TMS)3 }2 ] (2), which is a neutral dimeric twofold-bridged [Ge9 ] cluster compound, with the exo-bonded phosphine substituent being involved in the cluster bridging. In case of the presence of sterically more demanding phosphines in [Ge9 {Si(TMS)3 }2 PR2 ]- [R: Mes (3) and NiPr2 (4)], reactions with NHCDipp CuCl yielded the complexes NHCDipp Cu[eta3 -Ge9 {Si(TMS)3 }2 (PR2 )] [R: Mes (5) and NiPr2 (6)], comprising exclusively Cu-Ge bonds. Compounds 5 and 6 show varying reactivity in dependence of the identity of the phosphine group and represent the first examples of fourfold-substituted [Ge9 ] clusters with three different ligands bound to the [Ge9 ] cluster core. All compounds were characterized by 1 H, 13 C, 31 P, and 29 Si NMR spectroscopy. Additionally, compounds 3 and 4 were analyzed by ESI-MS, and the structures of compounds 1, 2, and 5 were characterized by single-crystal X-ray diffraction. PMID- 29322566 TI - Nursing a media grievance. PMID- 29322567 TI - Oral delivery system enhanced the bioavailability of stilbenes: Resveratrol and pterostilbene. AB - Stilbenes are a large group of compounds with the C6 ?C2 ?C6 skeleton, in which two aromatic rings are connected by an ethylene bridge. Resveratrol and its structural analog, pterostilbene, are by far the two most widely researched stilbenes in terms of their beneficial bioactivities. However, the bioefficacy of these compounds is greatly reduced when consumed orally due to their poor aqueous solubility, which leads to poor bioavailability. To overcome the limitation, strategies improving their solubility, absorption, and systemic concentration were applied when designing a suitable edible delivery system. This review will summarize the findings from the studies evaluating the oral bioavailability of stilbenes with emphasize on the resveratrol and pterostilbene. It will also include the edible delivery systems currently available and their effect on the oral bioavailability. (c) 2018 BioFactors, 44(1):5-15, 2018. PMID- 29322568 TI - Energy Transfer in Supramolecular Heteronuclear Lanthanide Dimers and Application to Fluoride Sensing in Water. AB - In the presence of fluoride anions, [LnL(H2 O)]+ complexes, based on the coordination of a lanthanide (Ln) cation into the cavity of a C2v symmetrical cyclen-based ligand (L), self-assemble in water to form [(LnL)2 F]+ dimers. The crystal structures of the Yb hydrated monomer and of the fluorinated dimer are reported and analyzed to unravel the impact of the cumulative effect of weak hydrogen bonding and aromatic stacking interactions in the supramolecular assembly. The assembly is stable over a broad range of pH 3-8. A combination of equimolar amounts of Eu and Tb complexes led to a quasistatistical mixture of homo- and heterodimers, as observed by using electrospray mass spectrometry. In the heterodimers, selective excitation into the 7 F6 ->5 D4 absorption band of the Tb center at lambda=488 nm allowed the observation of a Tb-to-Eu downshifting energy transfer, not observed in the absence of fluoride ions. Analysis of the excited-state lifetimes of the dimers within the frame of the Forster theory of energy transfer showed the transfer to have an efficiency of 34 %, with a corresponding Forster radius of 4.1 A; thereby, unraveling the short Ln-Ln distance as a crucial parameter of the energy-transfer process. By using equimolar mixtures of the Tb and Eu complexes, the energy-transfer phenomenon was used for a ratiometric sensing of fluoride anions in water with a detection limit of 17.7 nm. PMID- 29322569 TI - A Copper(II) Molecular Catalyst for Efficient and Selective Photochemical Reduction of CO2 to CO in a Water-Containing System. AB - A catalyst developed from a CuII complex of (Et4 N)[Cu(pyN2Me2 )(HCO2 )]?0.5 CH3 OH?H2 O (1?0.5 CH3 OH?H2 O; pyN2Me2 =bis(2,6-dimethylphenyl)-2,6 pyridinedicarboxamidate(2-)) shows a high activity to catalyze the reduction reaction of CO2 to CO driven by visible light in 4:1 acetonitrile/water (v:v) using [Ru(phen)3 ](PF6 )2 as photosensitizer and TEOA as sacrificial reductant, with a high TON of 9900 and a high CO selectivity of 98 %. The results of isotope labeling experiment, durability tests and energy dispersive spectroscopy reveal that 1 is robust during the photocatalytic process. PMID- 29322570 TI - Two-Pot Synthesis of Chiral 1,3-syn-Diols through Asymmetric Organocatalytic Aldol and Wittig Reactions Followed by Domino Hemiacetal/Oxy-Michael Reactions. AB - A two-pot synthetic method to construct the chiral syn-1,3-diol unit has been developed from three aldehydes and either Wittig or Horner-Wadsworth-Emmons reagents. In the first pot, chiral delta-hydroxy alpha,beta-unsaturated ketones are synthesized with excellent enantioselectivity by the organocatalyst-mediated asymmetric direct aldol reaction of two different aldehydes, followed by either Wittig or Horner-Wadsworth-Emmons reactions. In the second pot, domino acetalization with an aldehyde and subsequent oxy-Michael reaction proceeds in the presence of NaClO4 and a catalytic amount of Bi(OTf)3 (OTf=trifluoromethanesulfonate) to provide the chiral 1,3-syn-diol derivative with excellent diastereoselectivity. Diospongin C and yashabushidiol A have been synthesized efficiently by using the present method as a key step. PMID- 29322571 TI - Selective Single-Site Pd-In Hydrogenation Catalyst for Production of Enhanced Magnetic Resonance Signals using Parahydrogen. AB - Pd-In/Al2 O3 single-site catalyst was able to show high selectivity (up to 98 %) in the gas phase semihydrogenation of propyne. Formation of intermetallic Pd-In compound was studied by XPS during reduction of the catalyst. FTIR-CO spectroscopy confirmed single-site nature of the intermetallic Pd-In phase reduced at high temperature. Utilization of Pd-In/Al2 O3 in semihydrogenation of propyne with parahydrogen allowed to produce ~3400-fold NMR signal enhancement for reaction product propene (polarization=9.3 %), demonstrating the large contribution of pairwise hydrogen addition route. Significant signal enhancement as well as the high catalytic activity of the Pd-In catalyst allowed to acquire 1 H MR images of flowing hyperpolarized propene gas selectively for protons in CH, CH2 and CH3 groups. This observation is unique and can be easily transferred to the development of a useful MRI technique for an in situ investigation of selective semihydrogenation in catalytic reactors. PMID- 29322573 TI - Narrow band imaging versus laryngovideostroboscopy in precancerous and malignant vocal fold lesions. AB - BACKGROUND: This is a comparative analysis of the diagnostic accuracy of narrow band imaging (NBI) and laryngovideostroboscopy (LVS) in the assessment of premalignant and malignant vocal fold lesions. METHODS: A prospective analysis was performed on 105 consecutive patients with vocal fold lesions. The NBI and LVS were obtained before the microsurgery. RESULTS: The NBI and LVS showed no significant differences in identifying premalignant and malignant pathologies. However, in analysis restricted to identification of only malignant lesions, the specificity (88.9% vs 20.6%), accuracy (90.5% vs 51.4%), and positive predictive value (PPV; 84.8% vs 45.1%) were significantly higher for NBI (P value < .001; .015; and .045, respectively). A comparison of LVS scored results relative to each NBI type revealed statistically significant differences (P < .001). A moderate positive correlation between NBI and LVS was demonstrated (P = .54). CONCLUSION: The NBI and LVS are useful, complementary tools in evaluating early potential vocal fold malignancies. The NBI was superior to LVS on several statistical analyses. PMID- 29322572 TI - Burnout among direct-care workers in nursing homes: Influences of organisational, workplace, interpersonal and personal characteristics. AB - AIMS AND OBJECTIVES: The many negative effects of burnout have prompted researchers to better understand the factors contributing to it. The purpose of this paper is to add to this body of knowledge through the study of burnout among direct-care workers in nursing homes. BACKGROUND: Perhaps the factor most often associated with employee burnout is the level of staffing-insufficient staffing results in work overload and eventually employee burnout. A closer look at research findings suggests that there are many other factors also contributing to burnout. These range from those at the organisational level, such as availability of training and resources to individual characteristics such as self-esteem and length of employment. METHODS: A self-administered survey instrument was completed by 410 direct-care workers working within 11 nursing homes in the north Texas region. Regression analyses were performed, adjusting for clustering by nursing home. Beta coefficients and structure coefficients are reported. Burnout was measured through three dimensions: emotional exhaustion, depersonalisation and personal accomplishment. RESULTS: Organisational, work design, interpersonal and individual characteristics were found to be associated with one or more dimensions of burnout. CONCLUSIONS: The analyses largely support previous research. Organisational variables of significance included the availability of resources to do the work, available training and fair pay. Work design variables of significance included adequate staffing. The individual characteristic, self esteem, appeared to have the strongest impact on burnout. Commitment to the organisation also had a large impact. RELEVANCE TO CLINICAL PRACTICE: While the data do not allow for the testing of causal relationships, the data do suggest that providing adequate staffing, perceived fair pay, sufficient work resources (e.g., towels, gowns), management support and adequate training may result in less direct-care worker burnout on the job. PMID- 29322574 TI - Effects of sleep on the realization of complex plans. AB - Sleep consolidates newly encoded memories, particularly those memories that are relevant for future behaviour. This study explored whether sleep facilitates the successful execution of relatively complex plans in the future. We applied the Dresden Breakfast Task, in which subjects are instructed to prepare a virtual breakfast comprising several tasks (e.g. table-setting, preparing eggs). After forming a detailed plan how to realize these tasks, the sleep group (n = 17) spent a night of sleep at home, monitored by polysomnography, and the wake group (n = 19) spent a normal day awake, monitored by actigraphy. After a 12-h interval, all participants were asked to prepare the virtual breakfast. Contrary to our hypothesis, overall performance in breakfast preparation did not differ significantly between the sleep and wake groups. However, sleep participants performed better in one of six tasks, specifically the 'table-setting' task (P < 0.01), which was driven by higher scores in a subtask measuring the correct position of the tableware (P < 0.01). Additional exploratory analyses revealed that a significant number of wake participants performed below the minimal score of the sleep group (P < 0.01) and sleep participants achieved the maximal score in significantly more subtasks than wake participants (57% versus 27%; P = 0.018). Plan adherence, assessing how well participants adhered to their own previously developed plan, did not differ between the sleep and wake groups. These findings provide the first evidence that sleep may support some aspects of the realization of complex, somewhat naturalistic plans. PMID- 29322575 TI - Vaccine-preventable child deaths in New South Wales from 2005 to 2014: How much is preventable? AB - AIM: To identify and describe potentially vaccine-preventable child deaths in New South Wales (NSW). METHODS: Child deaths in NSW from 2005 to 2014 potentially preventable by vaccination were identified from the NSW Child Death Register (maintained by the NSW Ombudsman) and the Notifiable Conditions Information Management System (NSW Health). Medical and post-mortem records were reviewed. Cases were classified as vaccine-preventable based on the strength of evidence for the relevant infection causing death and likelihood that death was preventable through vaccination. A two-source capture-recapture method was used to estimate the true number of deaths. Age-specific mortality rate and number of deaths by disease, area of residence and comorbidity were analysed. Deaths were classified as preventable based on vaccine availability, eligibility under the National Immunisation Program, age and presence of any contraindications. RESULTS: Fifty-four deaths were identified as definitely or probably due to diseases for which a vaccine was available, with a total average annual mortality rate of 0.33 per 100 000 children and 2.1 per 100 000 infants. Two thirds of deaths occurred in children with no identified comorbidities. Twenty-three deaths were classified as preventable or potentially preventable by vaccination, with influenza (12 deaths) and meningococcal disease (five deaths) most common. An additional 15 deaths would be potentially preventable as of August 2016 due to immunisation recommendation changes including maternal vaccination. CONCLUSION: Maternal vaccination along with increased uptake of childhood influenza vaccination could reduce child deaths, particularly from influenza. PMID- 29322576 TI - A mixed methods thematic review: Health-related decision-making by the older person. AB - AIMS AND OBJECTIVES: To undertake a mixed methods thematic literature review that explored how elderly adults approached decision-making in regard to their health care following discharge. BACKGROUND: A critical time for appropriate health decisions occurs during hospital discharge planning with nursing staff. However, little is known how the 89% of elderly living at home make decisions regarding their health care. Research into older adults' management of chronic conditions emerges as an important step to potentially encourage symptom monitoring, prevent missed care and detect deterioration. All should reduce the risk of hospital re admission. DESIGN: A mixed methods thematic literature review was undertaken. The structure followed the PRISMA reporting guidelines for systematic reviews recommended by the EQUATOR network. METHODS: PubMed, Cumulative Index to Nursing and Allied Health Literature (CINAHL) and Scopus online databases were searched using keywords, inclusion and exclusion criteria. References drawn from relevant publications, identified by experts and published between 1995 and 2017 were also considered. Twenty-five qualitative, quantitative and mixed methods studies and reviews were critically appraised (CASP 2013) before inclusion in the review. Analysis of each study's findings was undertaken using Braun and Clarke's (2006) steps to identify major themes and sub-themes. RESULTS: Four main themes associated with health-related decision-making in the elderly were identified: "the importance of maintaining independence," "decision making style," "management of conditions at home" and "discharge planning." CONCLUSION: Health care decision preferences in the elderly emerged as highly complex and influenced by multiple factors. Development of a tool to assess these components has been recommended. RELEVANCE TO CLINICAL PRACTICE: Nurses play a vital role in exploring and understanding the influence that maintaining independence has with each patient. This understanding provides an initial step toward development of a tool to assist collaboration between patients and healthcare professionals involved in their care. PMID- 29322577 TI - I just can't please them all and stay sane: Adult child caregivers' experiences of family dynamics in care-giving for a parent with dementia in Australia. AB - Family caregivers of people with dementia who live within the community often experience stress and poor quality of life due to their care-giving role. While there are many factors that affect this, one influential factor is the family context. This study focussed on adult child caregivers. It examined the specific ways that family dynamics contribute to adult child caregivers' distress in the context of caring for a parent with dementia. Semi-structured interviews were conducted with 17 participants who were adult child primary caregivers for a parent with dementia who was living within the community. Interviews were audiotaped and transcribed verbatim. Transcripts were analysed using thematic analysis. Four themes were identified that represented areas of particular concern and distress for the caregivers: family expectations and caregivers' lack of choice in adopting the care-giving role; denial and differential understandings of dementia among family members; differential beliefs and approaches to care-giving among family members; and communication breakdown between family members. The findings demonstrate several avenues for further research including the development of interventions to support adult child caregivers and address problematic family dynamics within the context of caring for a parent with dementia. PMID- 29322578 TI - The different outcomes of legislative- versus advocacy-led development of cannabis policy. PMID- 29322579 TI - The employee retention triad in health care: Exploring relationships amongst organisational justice, affective commitment and turnover intention. AB - AIMS AND OBJECTIVES: To increase understanding of the relationships between organisational justice, affective commitment and turnover intention in health care. BACKGROUND: Turnover in health care is a serious concern, as it contributes to the global nursing shortage and is associated with declines in quality of care, patient safety and patient outcomes. Turnover also impacts care teams and is associated with decreased staff cohesion and morale. METHODS: A survey was developed and administered to frontline nurses working in the Province of Ontario, Canada. The data were used to test a hypothetical model developed from a review of the literature. The relationships amongst the three constructs were evaluated using structural equation modelling and mediation analysis. RESULTS: The hypothesised model was generally supported, although we were limited to considerations of interpersonal justice, affective commitment to one's organisation and turnover intention. Interpersonal justice is associated with affective commitment to one's organisation, which is negatively associated with turnover intention. Interpersonal justice was also found to be directly and negatively associated with turnover intention. Affective commitment to one's organisation was also found to mediate the relationship between interpersonal justice and turnover intention. CONCLUSIONS: The examination of relationships within the "employee retention triad" in a single, comprehensive model is novel and provides new information regarding relational complexity and insights into what healthcare leaders can do to retain employees. RELEVANCE TO CLINICAL PRACTICE: Reducing turnover may help to decrease some of the stressors related to turnover for clinical staff remaining at the organisation such as constant onboarding and orientation of new hires, working with less experienced staff and increased workload due to decreased staffing. PMID- 29322580 TI - A study of environmental factors affecting nurses' comfort and protection in wearing N95 respirators during bedside procedures. AB - AIMS AND OBJECTIVES: To investigate room temperature and relative humidity affecting nurses' comfort and protection in wearing N95 respirators during clinical bedside procedures. BACKGROUND: N95 respirators are most commonly used to protect healthcare workers against airborne diseases. The elastic head straps required for tight-fit may cause headache, facial pain and/or ear lobe discomfort. Although some past fit test results showed that these respirators are likely to fit comfortably, in reality, any discomfort from use may influence negatively their appeal and acceptability and thus lower their effectiveness to protect the wearers. DESIGN: This study used a comparative study design to compare nurses' comfort and protection in wearing N95 respirator during clinical nursing procedures. METHOD: The participants (84) were first-year undergraduate nursing students from a university in Hong Kong. They were divided randomly into four groups (A, B, C and D), with 21 in each group. In this study, they performed the Personal Respirator Sampling Test (PRST), a self-developed portable, real time fit test method based on the conventional fit test set-up. After this, they were asked to complete a usability questionnaire, which was used to record their evaluations of the six perceptions of comfort of wearing N95 respirators. RESULTS: The participants expressed being comfortable with the respirators at warm temperatures of 20 to 24 degrees C. For those participants in Group A who had performed fit tests and fit checks, they did not feel hot nor had difficulties with breathing. However, they did feel tightness in the respirators and experienced discomfort on their ear lobes. CONCLUSION: Room temperature is the significant factor affecting the comfort in wearing N95 respirators. It is noteworthy that any discomforts from wearing respirators will negatively influence their appeal and proper use. Without doubt, comfortable fit makes healthcare workers more likely use respirators, hence complying with occupational health and safety regulations. RELEVANCE TO CLINICAL PRACTICE: N95 respirator wearer's comfort is affected by room temperature. Wearer's comfort can affect his/her morale in performing bedside procedures in clinical practice. PMID- 29322581 TI - Technical implementations of light sheet microscopy. AB - Fluorescence-based microscopy is among the most successful methods in biological studies. It played a critical role in the visualization of subcellular structures and in the analysis of complex cellular processes, and it is nowadays commonly employed in genetic and drug screenings. Among the fluorescence-based microscopy techniques, light sheet fluorescence microscopy (LSFM) has shown a quite interesting set of benefits. The technique combines the speed of epi-fluorescence acquisition with the optical sectioning capability typical of confocal microscopes. Its unique configuration allows the excitation of only a thin plane of the sample, thus fast, high resolution imaging deep inside tissues is nowadays achievable. The low peak intensity with which the sample is illuminated diminishes phototoxic effects and decreases photobleaching of fluorophores, ensuring data collection for days with minimal adverse consequences on the sample. It is no surprise that LSFM applications have raised in just few years and the technique has been applied to study a wide variety of samples, from whole organism, to tissues, to cell clusters, and single cells. As a consequence, in recent years numerous set-ups have been developed, each one optimized for the type of sample in use and the requirements of the question at hand. Hereby, we aim to review the most advanced LSFM implementations to assist new LSFM users in the choice of the LSFM set-up that suits their needs best. We also focus on new commercial microscopes and "do-it-yourself" strategies; likewise we review recent designs that allow a swift integration of LSFM on existing microscopes. PMID- 29322582 TI - Large-scale disturbance legacies and the climate sensitivity of primary Picea abies forests. AB - Determining the drivers of shifting forest disturbance rates remains a pressing global change issue. Large-scale forest dynamics are commonly assumed to be climate driven, but appropriately scaled disturbance histories are rarely available to assess how disturbance legacies alter subsequent disturbance rates and the climate sensitivity of disturbance. We compiled multiple tree ring-based disturbance histories from primary Picea abies forest fragments distributed throughout five European landscapes spanning the Bohemian Forest and the Carpathian Mountains. The regional chronology includes 11,595 tree cores, with ring dates spanning the years 1750-2000, collected from 560 inventory plots in 37 stands distributed across a 1,000 km geographic gradient, amounting to the largest disturbance chronology yet constructed in Europe. Decadal disturbance rates varied significantly through time and declined after 1920, resulting in widespread increases in canopy tree age. Approximately 75% of current canopy area recruited prior to 1900. Long-term disturbance patterns were compared to an historical drought reconstruction, and further linked to spatial variation in stand structure and contemporary disturbance patterns derived from LANDSAT imagery. Historically, decadal Palmer drought severity index minima corresponded to higher rates of canopy removal. The severity of contemporary disturbances increased with each stand's estimated time since last major disturbance, increased with mean diameter, and declined with increasing within-stand structural variability. Reconstructed spatial patterns suggest that high small scale structural variability has historically acted to reduce large-scale susceptibility and climate sensitivity of disturbance. Reduced disturbance rates since 1920, a potential legacy of high 19th century disturbance rates, have contributed to a recent region-wide increase in disturbance susceptibility. Increasingly common high-severity disturbances throughout primary Picea forests of Central Europe should be reinterpreted in light of both legacy effects (resulting in increased susceptibility) and climate change (resulting in increased exposure to extreme events). PMID- 29322583 TI - Motor imagery training: Kinesthetic imagery strategy and inferior parietal fMRI activation. AB - Motor imagery (MI) is the mental simulation of action frequently used by professionals in different fields. However, with respect to performance, well controlled functional imaging studies on MI training are sparse. We investigated changes in fMRI representation going along with performance changes of a finger sequence (error and velocity) after MI training in 48 healthy young volunteers. Before training, we tested the vividness of kinesthetic and visual imagery. During tests, participants were instructed to move or to imagine moving the fingers of the right hand in a specific order. During MI training, participants repeatedly imagined the sequence for 15 min. Imaging analysis was performed using a full-factorial design to assess brain changes due to imagery training. We also used regression analyses to identify those who profited from training (performance outcome and gain) with initial imagery scores (vividness) and fMRI activation magnitude during MI at pre-test (MIpre ). After training, error rate decreased and velocity increased. We combined both parameters into a common performance index. FMRI activation in the left inferior parietal lobe (IPL) was associated with MI and increased over time. In addition, fMRI activation in the right IPL during MIpre was associated with high initial kinesthetic vividness. High kinesthetic imagery vividness predicted a high performance after training. In contrast, occipital activation, associated with visual imagery strategies, showed a negative predictive value for performance. Our data echo the importance of high kinesthetic vividness for MI training outcome and consider IPL as a key area during MI and through MI training. PMID- 29322584 TI - Effects of fixation on electrophysiology and structure of human jejunal villi. AB - The villi of human jejunum vary in size and shape during different functional conditions. In the base the lamina propria is isotonic with blood, in the tip hyperosmotic. Here we study electrophysiological and morphological effects of incubation in hypotonic, isotonic, or hypertonic solutions, and to test various isotonic fixatives for microscopy. Samples of jejunal mucosae, obtained during surgery in obese patients, were studied in Ussing chambers where electrical parameters were registered during incubation in Krebs solution at various osmolarities, and during fixation in formaldehyde, glutaraldehyde, or osmium tetroxide (OsO4 ). The same fixatives were used for other jejunal specimens that were fixed directly for light microscopy. Morphometry was carried out to determine size and height of villi, proportion of lamina propria, and surface enlargement due to villi. Ussing chamber incubation in fluids with low osmolarity resulted in increased electrical resistance and epithelial swelling. Opposite results were obtained at high osmolality. Fixation was faster in formaldehyde than in glutaraldehyde or OsO4 . In biopsies processed directly for light microscopy the proportions of lamina propria of the mucosa, and of lamina propria of villi, were significantly larger in biopsies fixed in formaldehyde than after fixation in glutaraldehyde or OsO4 . The villus tips sometimes ended with a bleb with prominent spaces between the epithelial cells. In summary, jejunal villi swell in vitro when exposed to hypotonic solutions, and shrink in hypertonic solutions. Much of the morphological changes occurring during fixation can be related to the physiological hyperosmolar milieu in villus tips. PMID- 29322585 TI - Scapular Fractures in the Pan-scan Era. AB - BACKGROUND: Scapular fractures have been traditionally taught to be associated with significant injuries and major morbidity. As we demonstrated with sternal fracture, pulmonary contusion, and rib fracture, increased chest computed tomography (CT) utilization and head-to-pelvis CT (pan-scan) protocols in blunt trauma evaluation, however, may diagnose minor, clinically irrelevant scapular fractures, possibly rendering previous teachings obsolete. OBJECTIVES: The objectives were to determine the 1) percentages of scapular fractures seen on chest CT only (SOCTO) versus seen on both chest x-ray (CXR) and CT and of isolated scapular fracture (scapular fracture without other thoracic injuries); 2) frequencies of associated thoracic injury with scapular fracture; and 3) proportion of patients admitted, mortality, hospital length of stay, and injury severity scores (ISS), comparing four patient groups: scapular fracture, nonscapular fracture, scapular fracture SOCTO, and isolated scapular fracture. METHODS: We conducted a preplanned analysis of patients prospectively enrolled in the NEXUS Chest CT study at nine Level I trauma centers with the following inclusion criteria: age > 14 years, blunt trauma within 6 hours of ED presentation, and receiving chest imaging during ED trauma evaluation. RESULTS: Of 11,477 subjects, 4,501 (39.2%) patients who had both CXR and chest CT and 2.7% of these had scapular fractures; 60.3% of these were SOCTO and 23 (19.0%) were isolated scapular fracture. The most commonly associated thoracic injuries were rib fracture, pulmonary contusion, pneumothorax, and thoracic spine fracture and all injuries were more common in scapular fracture patients than nonscapular fracture patients. Although scapular fracture patients had higher admission rates (86.8% vs. 47.4%; difference in proportions = 39.4% [95% confidence interval {CI} = 32.8% to 44.1%]), ISS (21 vs. 5), and length of stay (9.2 days vs. 5.6 days; mean difference = 3.4 days [95% CI = 2.1 to 4.7 days]) than patients without scapular fracture, their hospital mortality was not significantly different (5.6% vs. 3.0%; difference in proportions = 2.6% [95% CI = -8.2% to 0.3%]; unadjusted odds ratio = 1.9 [95% CI = 0.9 to 4.2]). Patients with scapular fracture SOCTO and isolated scapular fracture had higher admission rates and median ISS than nonscapular fracture patients, but their mortality was similar. CONCLUSIONS: Under current blunt trauma imaging protocols that commonly include chest CT, most scapular fractures are SOCTO and most are associated with other thoracic injuries. Although patients with scapular fracture SOCTO and isolated scapular fracture have higher admission rates and ISS than nonscapular fracture patients, their hospital mortality is similar. PMID- 29322586 TI - Functional connectivity predicts gender: Evidence for gender differences in resting brain connectivity. AB - Prevalence of certain forms of psychopathology, such as autism and depression, differs between genders and understanding gender differences of the neurotypical brain may provide insights into risk and protective factors. In recent research, resting state functional magnetic resonance imaging (rfMRI) is widely used to map the inherent functional networks of the brain. Although previous studies have reported gender differences in rfMRI, the robustness of gender differences is not well characterized. In this study, we use a large data set to test whether rfMRI functional connectivity (FC) can be used to predict gender and identify FC features that are most predictive of gender. We utilized rfMRI data from 820 healthy controls from the Human Connectome Project. By applying a predefined functional template and partial least squares regression modeling, we achieved a gender prediction accuracy of 87% when multi-run rfMRI was used. Permutation tests confirmed that gender prediction was reliable ( p<.001). Effects of motion, age, handedness, blood pressure, weight, and brain volume on gender prediction are discussed. Further, we found that FC features within the default mode (DMN), fronto-parietal and sensorimotor networks contributed most to gender prediction. In the DMN, right fusiform gyrus and right ventromedial prefrontal cortex were important contributors. The above regions have been previously implicated in aspects of social functioning and this suggests potential gender differences in social cognition mediated by the DMN. Our findings demonstrate that gender can be reliably predicted using rfMRI data and highlight the importance of controlling for gender in brain imaging studies. PMID- 29322587 TI - Growth rings in roots of medicinal perennial dicotyledonous herbs from temperate and subtropical zones in China. AB - Growth years are closely related to the quality of Chinese medicinal materials, and they can provide a reliable basis for quality evaluation on crude drugs in accordance with the suitable growth years. Herbchronology, the numerical and pattern analysis of annual growth rings in herbaceous perennials, has emerged to be a recognized science that is applied in age determination of perennial forbs. Fifty medicinal species growing in temperate and subtropical zones of China were examined by microstructure observation to determine the presence of growth rings in the secondary root xylem of medicinal perennial dicotyledonous herbs. Nearly half of the surveyed species showed clearly or relatively clearly demarcated growth rings in their roots, and additional anatomical patterns have been observed in different species. Clear variations in growth rings of different genus or species were characterized in this study, and these findings proved the feasibility of applying herbaceous plant growth rings in age identification of traditional Chinese medicine. PMID- 29322588 TI - Two-frequency CARS imaging by switching fiber laser excitation. AB - To fully exploit the power of coherent Raman imaging, techniques are needed to image more than one vibrational frequency simultaneously. We describe a method for switching between two vibrational frequencies based on a single fiber-laser source. Stokes pulses were generated by soliton self-frequency shifting in a photonic crystal fiber. Pump and Stokes pulses were stretched to enhance vibrational resolution by spectral focusing. Stokes pulses were switched between two wavelengths on the millisecond time scale by a liquid-crystal retarder. Proof of-principle is demonstrated by coherent anti-Stokes Raman imaging of polystyrene beads embedded in a poly(methyl methacrylate) (PMMA) matrix. The Stokes shift was switched between 3,050 cm-1 , where polystyrene has a Raman transition, and 2,950 cm-1 , where both polystyrene and PMMA have Raman resonances. The method can be extended to multiple vibrational modes. PMID- 29322589 TI - The Direct Cytotoxic Effects of Different Hemostatic Agents on Human Gingival Fibroblasts. AB - PURPOSE: To evaluate the cytotoxic effects of different hemostatic agents (including Expasyl) on human gingival fibroblasts (HGFs) in vitro. MATERIALS AND METHODS: HGFs were cultured and exposed to either no medicament treatment or 1:200 dilution of six different hemostatic agents (Hemox-A, Hemodent, Astringedent, Vicostat, Expasyl, 3M ESPE) for 2, 5, 10 minutes, 1 hour, and 24 hours. Toxicity to HGFs was determined by lactate dehydrogenase activity (LDH) and colorimetric (WST-1) assays. Two-tailed t-test was used for statistical analyses with alpha level set at 0.05. RESULTS: The group-by-time interactions were significant for the LDH and WST-1 assays (p < 0.001). Evaluation of the cytotoxic effect of different hemostatic agents at different incubation time intervals on the cell membrane damage revealed that Astringedent showed the highest cytotoxic effect on HGFs compared to other agents with regards to untreated negative control cells at all incubation time intervals (p < 0.001). On the other hand, Expasyl showed the least cytotoxic effect with significant differences at 5 minutes and 1 hour (p < 0.001) in comparison to other agents. CONCLUSIONS: LDH and WST-1 assays of hemostatic agents showed significant cytotoxic effect on HGFs at different time intervals. The data suggest that the risk for permanent tissue damage might be less significant when Expasyl is used during final impression procedure compared to when Astringedent is used. PMID- 29322590 TI - Cocoa agroforestry is less resilient to suboptimal and extreme climate than cocoa in full sun: Reply to Norgrove (2017). AB - Resilience of cocoa agroforestry vs. full sun under extreme climatic conditions. In the specific case of our study, the two shade tree species associated with cocoa resulted in strong competition for water and became a disadvantage to the cocoa plants contrary to expected positive effects. PMID- 29322591 TI - Inter-rater agreement of novel high-resolution impedance manometry metrics: Bolus flow time and esophageal impedance integral ratio. AB - BACKGROUND: Novel high-resolution impedance manometry (HRIM) metrics of bolus flow time (BFT) and esophageal impedance integral (EII) ratio have demonstrated clinical utility, though the reliability of their analysis has not been assessed. We aimed to evaluate the inter-rater agreement of the BFT and EII ratio. METHODS: HRIM studies including five upright, liquid swallows from 40 adult patients were analyzed by two raters using a customized MATLAB program to generate the BFT and EII ratio. Inter-rater agreement was assessed using the intraclass correlation coefficient (ICC) for median values generated per patient and also for all 200 swallows. KEY RESULTS: The ICC (95% confidence interval, CI) for BFT was 0.873 (0.759-0.933) for median values and 0.838 (0.778-0.881) for all swallows. The ICC (95% CI) for EII ratio was 0.983 (0.968-0.991) for median values and 0.905 (0.875 0.928) for all swallows. Median values for both BFT and EII ratio were similar between the two raters (P-values .05). CONCLUSIONS AND INFERENCES: The BFT and EII ratio can be reliably calculated as supported by generally excellent inter rater agreement. Thus, broader utilization of these measures appears feasible and would facilitate further evaluation of their clinical utility. PMID- 29322592 TI - Predicting the intrauterine fetal death of fetuses with cystic hygroma in early pregnancy. AB - We investigated whether it was possible to predict the prognosis of fetuses with cystic hygroma in early pregnancy based on the degree of neck thickening. We retrospectively analyzed 57 singleton pregnancies with fetuses with cystic hygroma who were examined before the 22nd week of pregnancy. The fetuses were categorized according to the outcome, structural abnormalities at birth, and chromosomal abnormalities. Here, we proposed a new sonographic predictor with which we assessed neck thickening by dividing the width of the neck thickening by the biparietal diameter, which is expressed as the cystic hygroma width/biparietal diameter ratio. The median cystic hygroma width/biparietal diameter ratio in the intrauterine fetal death group (0.51) was significantly higher than that in the live birth group (0.27). No significant difference in the median cystic hygroma width/biparietal diameter ratio was found between the structural abnormalities group at birth and the no structural abnormalities group, and no significant difference in the median cystic hygroma width/biparietal diameter ratio was found between the chromosomal abnormality group and the no chromosomal abnormality group. We used receiver operating characteristic analysis to evaluate the cystic hygroma width/biparietal diameter ratio to predict intrauterine fetal death. When the cystic hygroma width/biparietal diameter ratio cut-off value was 0.5, intrauterine fetal death could be predicted with a sensitivity of 52.9% and a specificity of 100%. It is possible to predict intrauterine fetal death in fetuses with cystic hygroma in early pregnancy if cystic hygroma width/biparietal diameter ratio is measured. However, even if cystic hygroma width/biparietal diameter ratio is measured, predicting the presence or absence of a structural abnormality at birth or a chromosomal abnormality is difficult. PMID- 29322593 TI - A Simplified Approach to Fabricate a Hollow Ocular Prosthesis. AB - The prosthetic rehabilitation of a large anophthalmic socket is always a challenge. It demands an equally sized ocular prosthesis to replace lost tissue volume. A conventional solid acrylic ocular prosthesis may be deterrent to retention and esthetics because of its weight, which can be reduced by eliminating the mass of material within it. This article attempts to present a simplified and accurate technique to fabricate a hollow ocular prosthesis using silicone putty cavity form. It is removed prior to final processing and serves to ensure appropriate uniform thickness of acrylic resin and optimal weight reduction of the definitive prosthesis without compromising mobility, esthetics, and structural integrity. PMID- 29322594 TI - Rasagiline improves polysomnographic sleep parameters in patients with Parkinson's disease: a double-blind, baseline-controlled trial. AB - BACKGROUND AND PURPOSE: The aim was to study the effects of rasagiline on sleep quality in patients with Parkinson's disease (PD) with sleep disturbances. Sleep disorders are common in PD. Rasagiline is widely used in patients with PD, but double-blind polysomnographic trials on its effects on sleep disturbances are missing. METHODS: This was a single-center, double-blind, baseline-controlled investigator-initiated clinical trial of rasagiline (1 mg/day) over 8 weeks in patients with PD with sleep disturbances. Blinding was achieved by running a strategic matched placebo parallel group. Co-primary outcome measures were the changes between baseline and end of the treatment period in sleep maintenance/efficiency as assessed by polysomnography and the Parkinson's Disease Sleep Scale Version 2 (PDSS-2) score. RESULTS: A total of 20 of 30 patients were randomized to rasagiline (mean +/- SD age, 69.9 +/- 6.9 years; 10 male; Hoehn Yahr stage, 1.9 +/- 0.8). Compared with baseline, sleep maintenance was significantly increased at the end of the treatment period (relative change normalized to baseline, +16.3 +/- 27.9%; P = 0.024, paired two-sided t-test) and a positive trend for sleep efficiency was detected (+12.1 +/- 28.6%; P = 0.097). Treatment with rasagiline led to significantly decreased wake time after sleep onset, number of arousals, percentage of light sleep and improved daytime sleepiness as measured by the Epworth Sleepiness Scale. We did not observe changes in the co-primary endpoint PDSS-2 score, and no correlations of polysomnographic sleep parameters or PDSS-2 score with motor function (Unified Parkinson's Disease Rating Scale motor score). Rasagiline was well tolerated with no unexpected adverse events. CONCLUSIONS: In patients with PD with sleep disturbances, rasagiline showed beneficial effects on sleep quality as measured by polysomnography. These effects were probably not related to motor improvement or translated into improved overall sleep quality perception by patients. PMID- 29322595 TI - Identification of new alpha-synuclein regulator by nontraditional drug development pipeline. PMID- 29322596 TI - Subclinical depressive symptoms during late midlife and structural brain alterations: A longitudinal study of Danish men born in 1953. AB - We explored whether depressive symptoms measured three times during midlife were associated with structural brain alterations quantified using magnetic resonance imaging measurements of volume, cortical thickness, and intensity texture. In 192 men born in 1953 with depressive symptoms measured at age 51, 56, and 59 years, magnetic resonance imaging was performed at age 59. All data processing was performed using the Freesurfer software package except for the texture-scores that were computed using in-house software. Structural brain alterations and associations between depressive symptoms and brain structure outcomes were tested using Pearson's correlation, t test, and linear regression. Depressive symptoms at age 51 showed clear inverse correlations with total gray matter, pallidum, and hippocampal volume with the strongest estimate for hippocampal volume (r = -.22, p < .01). After exclusion of men (n = 3) with scores in the range of clinical depression the inverse correlation between depressive symptoms and hippocampal volume became insignificant (r = -13, p = .08). Depressive symptoms at age 59 correlated positively with hippocampal and amygdala texture-potential early markers of atrophy. Inverse relations with total gray matter and pallidum volumes lost significance when the analysis was adjusted for intracranial volume. In men, depressive symptoms at age 51 were associated with a reduced volume of the hippocampus at age 59 independent of later symptoms. Amygdala and hippocampal textures might be the early markers for brain alterations associated with depression in midlife. PMID- 29322597 TI - The implementation of a successful medication safety program in a primary care. AB - RATIONALE, AIMS, AND OBJECTIVES: Improving patient safety is now a government priority in many economically developed and underdeveloped countries. Various medication safety interventions and programs that have been described in the literature focus on hospital settings, and only very few studies report on the implementation of such interventions in primary care. The main objectives of this study were firstly to describe the steps involved for the successful implementation of a medication safety program in primary care in rural Australia and secondly to report on its evaluation and provide recommendations for future initiatives. METHOD: The implementation of the medication safety program within the study organization included several steps, and these were as follows: collection of baseline medications incidents within the organization over the last 2 years, delivery of a medication safety training to clinicians working within the organization, formation of a medication safety group, and implementation of the newly developed medication safety guidelines within the organization. Clinicians' knowledge, behaviour, confidence, and satisfaction were also collected before and after the implementation. RESULTS: The results show that medication safety training has improved clinicians' knowledge, confidence, behaviour, and utilization positively. There was a significant increase in the clinicians' confidence and satisfaction in applying the training to their daily practice (P value of 0.02). The implementation of the medication safety program across the study organization sites relied on 3 main stages. These were connect and communicate, collaboration, and consolidation. In the first stage of the project, we focused on identifying the key issues contributing to medication errors across the organization using an evidence-based approach to identify the types of medications errors. CONCLUSION: The success of the implementation of a collaborative medication safety program within a large organization is dependent on emphasizing a wide culture of patient safety and understanding the medication incident reports within an organization. PMID- 29322598 TI - Erythritol production by yeasts: a snapshot of current knowledge. AB - Erythritol is a four-carbon sugar alcohol produced by microorganisms as an osmoprotectant. It could be used as a natural sweetener in the pharmaceutical and food industries. Here, a snapshot of current knowledge on erythritol metabolism and synthesis, optimization of its production and more precise process and producer strain improvement is presented. PMID- 29322599 TI - Non-invasive evaluation of portal hypertension using shear-wave elastography: analysis of two algorithms combining liver and spleen stiffness in 191 patients with cirrhosis. AB - BACKGROUND: Two algorithms based on sequential measurements of liver and spleen stiffness using two-dimensional shearwave elastography (2D-SWE) have been recently proposed to estimate clinically significant portal hypertension (hepatic venous pressure gradient [HVPG] >=10 mm Hg) in patients with cirrhosis, with excellent diagnostic accuracy. AIM: To validate externally these algorithms in a large cohort of patients with cirrhosis. METHODS: One hundred and ninety-one patients with stable cirrhosis (Child-Pugh class A 39%, B 29% and C 31%) who underwent liver and spleen stiffness measurements using 2D-SWE at the time of HVPG measurement were included. Diagnostic accuracy of the 2 algorithms was assessed by calculating sensitivity, specificity, positive and negative predictive values. RESULTS: The first algorithm, using liver stiffness <16.0 kilopascals (kPa) and then spleen stiffness <26.6 kPa, was used to rule-out HVPG >=10 mm Hg. In our population, its sensitivity and negative predictive value were 95% and 63% respectively. The second algorithm, using liver stiffness >38.0 kPa, or liver stiffness <=38.0 kPa but spleen stiffness >27.9 kPa, was used to rule-in HVPG >=10 mm Hg. In our population, its specificity and positive predictive value were 52% and 83% respectively. Restricting the analyses to the 74 patients without any history of decompensation of cirrhosis or to the 65 patients with highly reliable liver stiffness measurement did not improve the results. CONCLUSION: In our population, diagnostic accuracies of non-invasive algorithms based on sequential measurements of liver and spleen stiffness using 2D-SWE were acceptable, but not good enough to replace HVPG measurement or to base clinical decisions. PMID- 29322600 TI - Using Enamel Matrix Derivative to Improve Treatment Efficacy in Periodontal Furcation Defects. AB - PURPOSE: Furcations are complicated periodontal defects. Untreated furcations lead to loss of the involved teeth and supporting tissues. It has been demonstrated that regenerative biomaterials are beneficial in reconstruction of the bone surrounding furcation-affected teeth. These biomaterials range from bone grafts and nonresorbable/resorbable barrier membranes to biologics that are able to trigger inactive regenerative processes in periodontal tissues. Selection of appropriate material(s) to treat furcations is challenging. The aim of this article is to provide a comparative outlook on different biomaterials applicable in regeneration of furcations with a focus on enamel matrix derivative (EMD). METHODS: Scientific databases including PubMed/MEDLINE, ScienceDirect, and EMBASE were searched, and 28 articles were found primarily for this specific study. Full texts were studied to identify relevant studies; 17 studies were excluded because of irrelevancy, while 11 main studies were ultimately selected. Other references have been used for general statements. RESULTS: EMD is a protein complex widely used in the regeneration of different periodontal defects. To assess the effects of EMD for treatment of root furcations, clinical studies involving EMD with and without barrier membranes and bone grafts were selected and compared. Briefly, this study reveals that when EMD is combined with open flap debridement (OFD), guided tissue regeneration (GTR), or bone grafting (BG), the amount of class II furcations converted to class I increases significantly. EMD also reduces tissue swelling and patient discomfort after treatment. CONCLUSIONS: This study provides evidence to find the best combination of biomaterials to treat furcation defects. The best results are obtained if EMD is combined with beta-TCP/HA alloplastic bone grafts. PMID- 29322601 TI - Temperature sensitivities of extracellular enzyme Vmax and Km across thermal environments. AB - The magnitude and direction of carbon cycle feedbacks under climate warming remain uncertain due to insufficient knowledge about the temperature sensitivities of soil microbial processes. Enzymatic rates could increase at higher temperatures, but this response could change over time if soil microbes adapt to warming. We used the Arrhenius relationship, biochemical transition state theory, and thermal physiology theory to predict the responses of extracellular enzyme Vmax and Km to temperature. Based on these concepts, we hypothesized that Vmax and Km would correlate positively with each other and show positive temperature sensitivities. For enzymes from warmer environments, we expected to find lower Vmax , Km , and Km temperature sensitivity but higher Vmax temperature sensitivity. We tested these hypotheses with isolates of the filamentous fungus Neurospora discreta collected from around the globe and with decomposing leaf litter from a warming experiment in Alaskan boreal forest. For Neurospora extracellular enzymes, Vmax Q10 ranged from 1.48 to 2.25, and Km Q10 ranged from 0.71 to 2.80. In agreement with theory, Vmax and Km were positively correlated for some enzymes, and Vmax declined under experimental warming in Alaskan litter. However, the temperature sensitivities of Vmax and Km did not vary as expected with warming. We also found no relationship between temperature sensitivity of Vmax or Km and mean annual temperature of the isolation site for Neurospora strains. Declining Vmax in the Alaskan warming treatment implies a short-term negative feedback to climate change, but the Neurospora results suggest that climate-driven changes in plant inputs and soil properties are important controls on enzyme kinetics in the long term. Our empirical data on enzyme Vmax , Km , and temperature sensitivities should be useful for parameterizing existing biogeochemical models, but they reveal a need to develop new theory on thermal adaptation mechanisms. PMID- 29322602 TI - Outcomes of more than 1 000 percutaneous nephrolithotomies and validation of Guy's stone score. AB - OBJECTIVE: To present the experience with percutaneous nephrolithotomy (PCNL) at a high-volume Brazilian centre and to evaluate Guy's stone score (GSS) as a predictor of success and complications in PCNL. PATIENTS AND METHODS: We prospectively evaluated patients who underwent PCNL between June 2011 and October 2016. Indications for PCNL included renal stones >2 cm in size and stones <2 cm in size in which first-line techniques had failed. All patients underwent a complete preoperative evaluation, including non-contrast-enhanced abdominal computed tomography (CT). Stone complexity was assessed using GSS. Success was defined as the absence of fragments >2 mm on CT on postoperative day 1. Complications were classified according to the Clavien grade. RESULTS: A total of 1 066 PCNLs were performed on 891 patients. In all, 20.2% were classified as GSS1, 27.4% as GSS2, 35.0% as GSS3, and 17.4% as GSS4. The mean operating time was 108.44 min, and the mean fluoroscopy time was 13.57 min. The overall immediate success rate based on postoperative day 1 CT was 43.8%. Complications occurred in 14.9% of cases, and the mean length of hospital stay was 54.55 h. Stratifying patients according to GSS, success rate was inversely proportional to the calculus complexity: GSS1: 87.9%; GSS2: 62.1%; GSS3: 44.0%; and GSS4: 24.3% (P < 0.001). Higher GSS categories were significantly correlated with the number of puncture tracts (P < 0.001), operating time (P < 0.001), fluoroscopy time (P < 0.001), blood transfusion rate (P < 0.001), complications (P < 0.001) and length of stay (P < 0.001). CONCLUSION: In a high-volume centre, PCNL was a reliable surgical technique, with low morbidity and short hospital stay. GSS was confirmed to be a very useful tool for predicting the outcomes of PCNL, and its use should be encouraged. PMID- 29322603 TI - The nerve supply of zygomaticus major: Variability and distinguishing zygomatic from buccal facial nerve branches. AB - The zygomaticus major (ZM) is important for the human smile. There are conflicting data about whether the zygomatic or buccal branches of the facial nerve are responsible for its motor innervation. The literature provides no precise distinction of the transition zone between these two branch systems. In this study, a definition to distinguish the facial nerve branches at the level of the body of the zygoma is proposed. In the light of this definition, we conducted an anatomical study to determine how the source of innervation of the ZM was distributed. A total of 96 fresh-frozen cadaveric facial halves were dissected under loupe magnification. A hemiparotidectomy was followed by antegrade microsurgical dissection. Any branch topographically lying superficial to the zygoma or touching it was classed as zygomatic, and any neighboring inferior branch was considered buccal. The arborization of the facial nerve was diffuse in all cases. In 64 out of 96 specimens (67%, 95% CI: 56% to 76%), zygomatic branches innervated the ZM. Buccal branches innervated ZM in the other 32 facial halves (33%, 95% CI: 24% to 44%). There were no differences in respect of sex or facial side. All facial halves displayed additional branches, which crossed the muscle on its inner surface without supplying it. In 31 specimens, a nerve branch ran superficial to ZM in its cranial third. According to our classification, the zygomaticus major is innervated by zygomatic branches in 67% of cases and by buccal branches in 33%. Clin. Anat. 31:560-565, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29322604 TI - Clinical characteristics and outcome in dogs with small cell T-cell intestinal lymphoma. AB - Small cell intestinal lymphoma has not been well characterized in dogs. The objective of this study was to describe clinical characteristics and outcome in dogs with small cell intestinal lymphoma. We hypothesized that affected dogs would have prolonged survival compared with high-grade gastrointestinal (GI) lymphoma. Pathology records were searched for dogs with histologically confirmed small cell GI lymphoma. Seventeen dogs with confirmed small cell intestinal lymphoma were identified, and clinical and outcome data were retrospectively collected. Histopathology was reviewed by a board-certified pathologist, and tissue sections were subjected to immunophenotyping and molecular clonality assessment. All dogs had small cell, T-cell, lymphoma confirmed within various regions of small intestine, with 1 dog also having disease in abdominal lymph nodes. All dogs had clinical signs attributable to GI disease; diarrhoea (n = 13) was most common. Ultrasonographic abnormalities were present in 8 of 13 dogs with abnormal wall layering (n = 7) and hyperechoic mucosal striations (n = 7) representing the most common findings. In total, 14 dogs received some form of treatment. The median survival time (MST) for all dogs was 279 days and the MST for the 14 dogs that received any treatment was 628 days. Dogs with anaemia and weight loss at presentation had significantly shorter survival times and dogs that received a combination of steroids and an alkylating agent had significantly longer survival times. Small cell, T-cell, intestinal lymphoma is a distinct disease process in dogs, and those undergoing treatment may experience prolonged survival. PMID- 29322605 TI - DECLARE-TIMI 58: Participants' baseline characteristics. AB - AIM: To describe the baseline characteristics of participants randomized in the Dapagliflozin Effect on CardiovascuLAR Events (DECLARE-TIMI 58) trial, the pivotal study conducted to assess cardiovascular (CV) outcomes with dapagliflozin. METHODS: The DECLARE-TIMI 58 trial will analyse 17 160 patients with type 2 diabetes randomized to treatment with dapagliflozin (10 mg/d) or matching placebo. We analysed their baseline characteristics. RESULTS: The participants' mean +/- SD age was 63.8 +/- 6.8 years, 62.6% were male, and their mean +/- SD diabetes duration was 11.8 +/- 7.8 years, glycated haemoglobin 8.3% +/- 1.2% (67 mmol/mol +/- 9.7 mmol/mol) and body mass index 32.1 +/- 6.0 kg/m2 . Randomization included 6971 (40.6%) patients with atherosclerotic CV disease (CVD), and 10 189 (59.4%) patients with multiple risk factors (MRF) for CVD (defined as men age >= 55 years or women >=60 years, with at least one of dyslipidaemia, hypertension or smoking). Patients with CVD compared with patients with MRF were younger (62.5 +/- 8.1 vs 64.7 +/- 5.6 years), more frequently male (72.1% vs 56.1%), less often used metformin (74.6% vs 81.2%), more often used insulin (44.2% vs 36.4%), and more frequently used statins, aspirin, clopidogrel and beta-blockers (82.2%, 71.1%, 24.7% and 66.6% vs 63.7%, 39.1%, 1.5% and 32.3%, respectively). CONCLUSION: The DECLARE-TIMI 58 trial is expected to provide conclusive data on the effect of treatment with dapagliflozin in addition to standard of care, on CV outcomes in a broad patient population with type 2 diabetes and CVD or MRF for CVD. PMID- 29322606 TI - Association of tumour-infiltrating regulatory T cells with adverse outcomes in dogs with malignant tumours. AB - Regulatory T cells (Tregs) infiltrate into a variety of tumour tissues and associate with poor prognosis in humans. However, data on association of Treg infiltration with prognosis is limited in canine tumours. The purpose of this study was to examine the number of tumour-infiltrating Tregs and its association with overall survival (OS) in dogs with malignant tumours. The following 168 canine tumours were included: 37 oral malignant melanomas (OMMs); 14 oral squamous cell carcinomas (OSCCs); 16 pulmonary adenocarcinomas (PAs); 37 mammary carcinomas (MCs); 36 mast cell tumours (MCTs) and 28 hepatocellular carcinomas (HCCs). Normal tissues were obtained from 8 healthy dogs as controls. The number of forkhead box P3 (Foxp3)-positive Tregs in intratumoral and peritumoral areas was investigated by immunohistochemistry. OS was compared between high and low Treg groups. The number of intratumoral and peritumoral Foxp3-positive Tregs was significantly higher in OMM, OSCC, PA and MC compared with each normal tissue. There were few Foxp3-positive Tregs in MCT and HCC. With intratumoral Tregs, the OS in the high Treg group was significantly shorter than that in the low Treg group in OMM, OSCC and PA. With peritumoral Tregs, there was no significant difference for OS between the 2 groups in each tumour type. These results suggest that Tregs infiltrate into a variety of canine tumours and the abundance of Tregs are associated with poor prognosis in some solid tumour types. PMID- 29322607 TI - Stenting of the inter-atrial septum in infants and small children: Indications, techniques and outcomes. AB - OBJECTIVES: To evaluate the procedural success and outcome of inter-atrial stenting. BACKGROUND: Inter-atrial stenting has been shown to be an effective way to maintain inter-atrial blood flow, however it is considered a high risk procedure, usually performed urgently in patients with significant hemodynamic compromise. METHODS: Between September 2004 and August 2016, inter-atrial stenting was attempted in 29 children. Procedural, clinical, and follow-up data were collected retrospectively. RESULTS: The procedures were completed successfully in 27 patients. Twenty-five procedures were undertaken percutaneously, with the remaining four being performed as hybrid procedures. The patients were considered as high risk for adverse events (82% scored as CRISP 4 and 5) with four deaths during the first 24 hr (14%). Procedural complications occurred in eight patients (28%) with related death in three patients (10%). One further patient died after an uncomplicated technically successful stent implantation performed as a salvage procedure. Procedural complications (71% vs. 14%) and mortality (43% vs. 5%) were higher in those, who weighed 3 kg or less (P < 0.05). Patency of the stents was maintained until planned staged surgery in 22 patients at a mean of 302 days. Three patients underwent further balloon dilation for flow restriction at 58-201 days. In two un-operated patients the stents remained patent at follow-up. One patient with severe pulmonary hypertension died with a patent stent. CONCLUSIONS: Inter-atrial stenting produces reliable patency with a very good success rate. Morbidity and mortality were related to low weight at the time of the procedure. PMID- 29322609 TI - Peer teaching and information retrieval: the role of the NICE Evidence search student champion scheme in enhancing students' confidence. AB - BACKGROUND: This research reports on the NICE Evidence search (ES) student champion scheme (SCS) first five years of activity (2011-2016) in terms of its impact on health care undergraduate students' information search skills and search confidence. OBJECTIVES: A review of students' evaluation of the scheme was carried out to chart the changes in attitude towards NICE Evidence search as an online health care information source and to monitor students' approach to information seeking. METHODS: This study is based on the results of questionnaires distributed to students before and after attending a training session on NICE Evidence search delivered by their own peers. The exercise was implemented in health related universities in England over a period of five consecutive academic years. RESULTS: (i) Students' search confidence improved considerably after the training; (ii) ES was perceived as being an increasingly useful resource of evidence based information for their studies; (iii) the training helped students develop discerning search skills and use evidence based information sources more consistently and critically. CONCLUSIONS: The NICE SCS improves confidence in approaching information tasks amongst health care undergraduate students. Future developments could involve offering the training at the onset of a course of study and adopting online delivery formats to expand its geographical reach. PMID- 29322608 TI - Comparison of listeriolysin O and phospholipases PlcA and PlcB activities, and initial intracellular growth capability among food and clinical strains of Listeria monocytogenes. AB - AIMS: We investigated whether Listeria monocytogenes strains differ in their ability to escape from the primary phagosome after internalization into human intestinal epithelial cells. METHODS AND RESULTS: Food and clinical strains were used to study specific alleles; the activities of listeriolysin O (LLO) and phospholipases PlcA and PlcB, which promote rupture of the phagocytic vacuole; and initial intracellular bacterial growth in Caco-2 cells. Results showed no difference in LLO activities between food and clinical strains or among serotypes. In contrast, the LLO truncation mutant lacked detectable haemolytic activity and intracellular growth. PlcA and PlcB produced by the strains of serotypes 4b/4e and 1/2b exhibited significantly lower activities than those of serotypes 1/2a and 1/2c. In contrast, the strains of serotype 1/2b grew significantly faster than those of serotypes 4b/4e and 1/2a. Moreover, the PrfA truncation mutants lacked LLO and phospholipases activities and did not show intracellular growth. CONCLUSIONS: We determined that LLO and PrfA mutants exert a significant effect on intracellular growth, although it was unclear from this study whether PlcA and PlcB alleles affect escape from vacuoles. SIGNIFICANCE AND IMPACT OF THE STUDY: This study estimates that low-virulence L. monocytogenes strains associated with escape ability from the primary vacuoles are not widely distributed among food strains. PMID- 29322610 TI - Safety and efficacy of once-weekly semaglutide vs additional oral antidiabetic drugs in Japanese people with inadequately controlled type 2 diabetes: A randomized trial. AB - AIM: To evaluate the safety and efficacy of once-weekly subcutaneous semaglutide as monotherapy or combined with an oral antidiabetic drug (OAD) vs an additional OAD added to background therapy in Japanese people with type 2 diabetes (T2D) inadequately controlled on diet/exercise or OAD monotherapy. METHODS: In this phase III, open-label trial, adults with T2D were randomized 2:2:1 to semaglutide 0.5 mg or 1.0 mg, or one additional OAD (a dipeptidyl peptidase-4 inhibitor, biguanide, sulphonylurea, glinide, alpha-glucosidase inhibitor or thiazolidinedione) with a different mode of action from that of background therapy. The primary endpoint was number of adverse events (AEs) after 56 weeks. RESULTS: Baseline characteristics were balanced between treatment arms (601 randomized). More AEs were reported in the semaglutide 0.5 mg (86.2%) and 1.0 mg (88.0%) groups than in the additional OAD group (71.7%). These were typically mild/moderate. Gastrointestinal AEs were most frequent with semaglutide, which diminished over time. The mean glycated haemoglobin (HbA1c) concentration (baseline 8.1%) was significantly reduced with semaglutide 0.5 mg and 1.0 mg vs additional OAD (1.7% and 2.0% vs 0.7%, respectively; estimated treatment difference [ETD] vs additional OAD -1.08% and -1.37%, both P < .0001). Body weight (baseline 71.5 kg) was reduced by 1.4 kg and 3.2 kg with semaglutide 0.5 mg and 1.0 mg, vs a 0.4-kg increase with additional OAD (ETD -1.84 kg and -3.59 kg; both P < .0001). For semaglutide-treated participants, >80% achieved an HbA1c concentration <7.0% (Japanese Diabetes Society target). CONCLUSIONS: Semaglutide was well tolerated, with no new safety issues identified. Semaglutide treatment significantly reduced HbA1c and body weight vs additional OAD treatment in Japanese people with T2D. PMID- 29322611 TI - Impact of pre-procedural hyponatremia on clinical outcomes after transcatheter aortic valve replacement: A propensity-matched analysis. AB - BACKGROUND: Hyponatremia is associated with the increased risk of early and late mortality in patients with cardiac disease. This study aimed to assess the prognostic value of hyponatremia in patients who had undergone transcatheter aortic valve replacement (TAVR). METHODS: We investigated 1,215 consecutive patients (mean age: 84.4 +/- 5.0 years) who underwent TAVR using data from the Optimized CathEter vAlvular iNtervention (OCEAN)-TAVR Japanese multicenter registry. Hyponatremia was defined as a serum sodium value less than 135 mEq/L. The baseline characteristics, procedural outcomes, all-cause, cardiovascular, and non-cardiovascular mortality were compared between patients with hyponatremia (n = 106, 8.7%) and without hyponatremia (n = 1,109, 91.3%). A propensity-matching analysis was used to adjust for the non-uniform patient characteristics. RESULTS: Differences in the baseline characteristics were observed between the two groups regarding the prevalence of pulmonary disease (37.7% vs. 28.9%, P = 0.04) and the performance of non-elective TAVR (10.4% vs. 4.2%, P = 0.01), although these were minimized in the matched model. The 30-day mortality rates differed between the two groups (7.6% vs. 1.4%, P < 0.001). During a mean follow-up of 330 days, the all-cause and cardiovascular mid-term mortality were higher in the hyponatremia group than in the non-hyponatremia group (log-rank test: P = 0.0047, and P < 0.001, respectively). The three findings above were not attenuated in the propensity-matched model (P < 0.001, P = 0.0044, and P = 0.014, respectively). In contrast, there was no difference in non-cardiovascular mortality between the two groups in both the overall and matched model (P = 0.40 and P = 0.13, respectively). CONCLUSIONS: Pre-procedural hyponatremia may be a useful marker for predicting early and mid-term clinical outcomes after TAVR. PMID- 29322612 TI - Validation of contemporary risk scores in predicting coronary thrombotic events and major bleeding in patients with acute coronary syndrome after drug-eluting stent implantations. AB - OBJECTIVES: We aimed to assess the prognostic ability of the ST score, DAPT score, and PARIS score in a Chinese population. BACKGROUND: Recently, several risk scores predicting the long-term risk of coronary thrombotic events [CTE, defined as the composite of definite or probable stent thrombosis (ST) and myocardial infarction] and bleeding have been developed and initially validated in Western populations. METHODS: A total of 6,088 consecutive patients with acute coronary syndrome (mean age 58.3 +/- 10.4; women 23.1%) treated with drug-eluting stents in 2013 at our single institution were enrolled. We calculated risk scores and evaluated their performance for predicting definite or probable ST, CTE and major bleeding (MB, defined as the occurrence of a Bleeding Academic Research Consortium type 3 or 5 bleed). The prognostic value of risk scores was assessed by receiver-operating characteristic curves. RESULTS: The ST score, DAPT score, and PARIS score all showed unsatisfactory discrimination to predict 2-year or 1- to 2-year ST and CTE (c-statistic = 0.51-0.59). With respect to bleeding outcomes, the PARIS score showed unsatisfactory discrimination in predicting 2 year MB (c-statistic = 0.56); the DAPT score performed slightly better than the PARIS score in predicting occurrence of later MB events between 1 and 2 years, whereas its discriminative capacity was only modest (c-statistic = 0.71). CONCLUSIONS: The current three risk scores, derived and initially validated in Western populations, may not be applicable to the Chinese population, although DAPT score was determined to be a modestly accurate quantitative tool for prediction of later MB. PMID- 29322613 TI - Forward view: advancing health library and knowledge services in England. AB - This article is the fourth in a series on New Directions. The National Health Service is under pressure, challenged to meet the needs of an ageing population, whilst striving to improve standards and ensure decision making is underpinned by evidence. Health Education England is steering a new course for NHS library and knowledge services in England to ensure access to knowledge and evidence for all decision makers. Knowledge for Healthcare calls for service transformation, role redesign, greater coordination and collaboration. To meet user expectations, health libraries must achieve sustainable, affordable access to digital content. Traditional tasks will progressively become mechanised. Alongside supporting learners, NHS librarians and knowledge specialists will take a greater role as knowledge brokers, delivering business critical services. They will support the NHS workforce to signpost patients and the public to high-quality information. There is a need for greater efficiency and effectiveness through greater co operation and service mergers. Evaluation of service quality will focus more on outcomes, less on counting. These changes require an agile workforce, fit for the future. There is a bright future in which librarians' expertise is used to mobilise evidence, manage and share knowledge, support patients, carers and families, optimise technology and social media and provide a keystone for improved patient care and safety. PMID- 29322615 TI - Melatonin protects against Abeta-induced neurotoxicity in primary neurons via miR 132/PTEN/AKT/FOXO3a pathway. AB - Alzheimer's disease (AD) is a kind of neurodegenerative disorder associated with age. Investigations suggest that amyliod-beta (Abeta) is implicated in the pathogenesis of AD. The accumulation of Abeta in the brain causes oxidative stress and synaptic toxicity, leads to synaptic dysfunction and neuronal death. Previous investigations suggest that melatonin an endogenous hormone can counteract Abeta-induced neurotoxicity. However, the molecular mechanisms of Abeta-induced toxicity and melatonin treatment remain elusive. Studies indicate that microRNA-132 is crucial for neuronal survival and plays a key role in the pathological process of AD. Moreover, PTEN and FOXO3a two key targets of miR-132 are upregulated in the AD brain. Here, we exposed the primary cultured cortical neurons with Abeta25-35 and treated with melatonin. Our investigations demonstrated that Abeta25-35 exposure significantly decreased the expression of miR-132 and elevated the expression of PTEN and FOXO3a. Whereas, melatonin treatment could rescue the expression of miR-132 and downregulate the level of PTEN and FOXO3a. Moreover, melatonin blocked the nuclear translocation of FOXO3a and thereby suppressed its pro-apoptotic pathways. In addition, our investigations suggested that the over-expression of miR-132 could block Abeta induced neurotoxicity. We also found that VO-OHpic (PTEN inhibitor) could counteract Abeta-induced neuronal damage, and LY294002 (AKT inhibitor) suppressed the protective effect of melatonin. Together, these results indicate that melatonin exerts its neuroprotective effect in Abeta-induced neurotoxicity via miR-132/PTEN/AKT/FOXO3a pathway. (c) 2018 BioFactors, 00(00):000-000, 2018. PMID- 29322614 TI - Method for automatic detection of defective ultrasound linear array transducers based on uniformity assessment of clinical images - A case study. AB - The purpose of the present study was to test an idea of and describe a concept of a novel method of detecting defects related to horizontal nonuniformities in ultrasound equipment. The method is based on the analysis of ultrasound images collected directly from the clinical workflow. In total over 31000 images from three ultrasound scanners from two vendors were collected retrospectively from a database. An algorithm was developed and applied to the images, 150 at a time, for detection of systematic dark regions in the superficial part of the images. The result was compared with electrical measurements (FirstCall) of the transducers, performed at times when the transducers were known to be defective. The algorithm made similar detection of horizontal nonuniformities for images acquired at different time points over long periods of time. The results showed good subjective visual agreement with the available electrical measurements of the defective transducers, indicating a potential use of clinical images for early and automatic detection of defective transducers, as a complement to quality control. PMID- 29322617 TI - PREVIEW (Prevention of Diabetes Through Lifestyle Intervention and Population Studies in Europe and Around the World) study in children aged 10 to 17 years: Design, methods and baseline results. AB - Insulin resistance (IR) in adolescence is associated with type 2 diabetes mellitus [T2DM]. The PREVIEW (Prevention of Diabetes Through Lifestyle Intervention and Population Studies in Europe and Around the World) study assessed the effectiveness of a high-protein, low-glycaemic-index diet and a moderate-protein, moderate-glycaemic-index diet to decrease IR in insulin resistant children who were overweight or obese. Inclusion criteria were age 10 to 17 years, homeostatic model assessment of IR (HOMA-IR) >=2.0 and overweight/obesity. In 126 children (mean +/- SD age 13.6 +/- 2.2 years, body mass index [BMI] z-score 3.04 +/- 0.66, HOMA-IR 3.48 +/- 2.28) anthropometrics, fat mass percentage (FM%), metabolic characteristics, physical activity, food intake and sleep were measured. Baseline characteristics did not differ between the groups. IR was higher in pubertal children with morbid obesity than in prepubertal children with morbid obesity (5.41 +/- 1.86 vs 3.23 +/- 1.86; P = .007) and prepubertal and pubertal children with overweight/obesity (vs 3.61 +/- 1.60, P = .004, and vs 3.40 +/- 1.50, P < .001, respectively). IR was associated with sex, Tanner stage, BMI z-score and FM%. Fasting glucose concentrations were negatively associated with Baecke sport score (r = -0.223, P = .025) and positively with daytime sleepiness (r = 0.280, P = .016) independent of sex, Tanner stage, BMI z-score and FM%. In conclusion, IR was most severe in pubertal children with morbid obesity. The associations between fasting glucose concentration and Baecke sport score and sleepiness suggest these might be possible targets for diabetes prevention. PMID- 29322616 TI - Development of methods and feasibility of using hyperpolarized carbon-13 imaging data for evaluating brain metabolism in patient studies. AB - PURPOSE: Hyperpolarized carbon-13 (13 C) metabolic imaging is a noninvasive imaging modality for evaluating real-time metabolism. The purpose of this study was to develop and implement experimental strategies for using [1-13 C]pyruvate to probe in vivo metabolism for patients with brain tumors and other neurological diseases. METHODS: The 13 C radiofrequency coils and pulse sequences were tested in a phantom and were performed using a 3 Tesla whole-body scanner. Samples of [1 13 C]pyruvate were polarized using a SPINlab system. Dynamic 13 C data were acquired from 8 patients previously diagnosed with brain tumors, who had received treatment and were being followed with serial magnetic resonance scans. RESULTS: The phantom studies produced good-quality spectra with a reduction in signal intensity in the center attributed to the reception profiles of the 13 C receive coils. Dynamic data obtained from a 3-cm slice through a patient's brain following injection with [1-13 C]pyruvate showed the anticipated arrival of the agent, its conversion to lactate and bicarbonate, and subsequent reduction in signal intensity. A similar temporal pattern was observed in 2D dynamic patient studies, with signals corresponding to pyruvate, lactate, and bicarbonate being in normal appearing brain, but only pyruvate and lactate being detected in regions corresponding to the anatomical lesion. Physiological monitoring and follow-up confirmed that there were no adverse events associated with the injection. CONCLUSION: This study has presented the first application of hyperpolarized 13 C metabolic imaging in patients with brain tumor and demonstrated the safety and feasibility of using hyperpolarized [1-13 C]pyruvate to evaluate in vivo brain metabolism. Magn Reson Med 80:864-873, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29322618 TI - Genome-enabled metabolic reconstruction of dominant chemosynthetic colonizers in deep-sea massive sulfide deposits. AB - Deep-sea massive sulfide deposits remaining after ceasing of hydrothermal activity potentially provide energy for a chemosynthetic ecosystem in the dark, cold marine environments. Although yet-uncultivated bacteria in the phylum Nitrospirae and the class Deltaproteobacteria are known to dominate the microbial communities of sulfide deposits at and below the seafloor, their metabolic capabilities remain largely elusive. Here, we reveal the metabolic potential of these yet-uncultivated bacteria in hydrothermally inactive sulfide deposits collected at the Southern Mariana Trough by seafloor drilling. Near-complete genomes of the predominant bacterial members were recovered from shotgun metagenomic sequences. The genomic capabilities for CO2 and N2 fixation suggest that these bacteria are primary producers in the microbial ecosystem. Their genomes also encode versatile chemolithotrophic energy metabolisms, such as the oxidation of H2 , sulfide and intermediate sulfur species including thiosulfate, all of which can be supplied by chemical reactions between seawater and metal sulfides. Notably, the presence of genes involved in thiosulfate oxidation in Nitrospirae and Deltaproteobacteria genomes is unusual. Our study strongly support the presence of a chemosynthetic ecosystem fuelled by the Earth's internal energy in the deep-sea massive sulfide deposits, and illustrates the unexpected metabolic capability of known bacterial taxonomic groups. PMID- 29322619 TI - Randomized comparison of novel biodegradable polymer and durable polymer-coated cobalt-chromium sirolimus-eluting stents: Three-Year Outcomes of the I-LOVE-IT 2 Trial. AB - OBJECTIVES: We aimed to compare the long-term outcomes of the novel biodegradable polymer cobalt-chromium sirolimus-eluting stent (BP-SES) versus the durable polymer sirolimus-eluting stent (DP-SES) in the I-LOVE-IT2 trial. BACKGROUNDS: Comparisons of the long-term safety and efficiency of the BP-DES versus the DP DES are limited. METHODS: A total of 2,737 patients eligible for coronary stenting were randomized to the BP-SES or DP-SES group at a 2:1 ratio. The primary endpoint of target lesion failure (TLF) was defined as a composite of cardiac death, target vessel myocardial infarction (MI), or clinically indicated target lesion revascularization. RESULTS: A three-year clinical follow-up period was available for 2,663 (97.3%) patients. There were no significant differences in TLF (8.9% vs. 8.6%, P = 0.81), patient-oriented composite endpoint (PoCE) (15.2% vs.14.5%, P = 0.63), or individual components between the BP-SES and DP SES. Definite/probable stent thrombosis (ST) was low and similar at 3 years (0.8% vs. 1.0%, P = 0.64). Landmark analysis of 1-3 years showed that the TLF (2.7% vs. 2.6%, P = 0.81), PoCE (6.2% vs. 5.1%, P = 0.28), and definite/probable ST (0.4% vs. 0.4%, P = 1.00) were comparable between the 2 arms. CONCLUSIONS: In this prospective randomized trial, the BP-SES showed similar clinical results versus the DP-SES in terms of safety and efficacy outcomes over a 3-year follow-up period. PMID- 29322620 TI - Rice Protein Matrix Enhances Circulating Levels of Xanthohumol Following Acute Oral Intake of Spent Hops in Humans. AB - SCOPE: Xanthohumol (XN), a prenylated flavonoid found in hops, exhibits anti inflammatory and antioxidant properties. However, poor bioavailability may limit therapeutic applications. As food components are known to modulate polyphenol absorption, the objective is to determine whether a protein matrix could enhance the bioavailability of XN post oral consumption in humans. METHODS AND RESULTS: This is a randomized, double-blind, crossover study in healthy participants (n = 6) evaluating XN and its major metabolites (isoxanthohumol [IX], 6- and 8 prenylnaringenin [6-PN, 8-PN]) for 6 h following consumption of 12.4 mg of XN delivered via a spent hops-rice protein matrix preparation or a control spent hops preparation. Plasma XN and metabolites are measured by LC-MS/MS. Cmax , Tmax , and area-under-the-curve (AUC) values were determined. Circulating XN and metabolite response to each treatment was not bioequivalent. Plasma concentrations of XN and XN + metabolites (AUC) are greater with consumption of the spent hops-rice protein matrix preparation. CONCLUSION: Compared to a standard spent hops powder, a protein-rich spent hops matrix demonstrates enhanced plasma levels of XN and metabolites following acute oral intake. PMID- 29322621 TI - Reply: i-IFTA is better appreciated by its pathology rather than molecules. PMID- 29322622 TI - Ten years of clinical trial registration in a resource-limited setting: Experience of the Sri Lanka clinical trials registry. AB - AIM: We describe our experience of the first 10 years at the Sri Lanka Clinical Trials Registry (SLCTR). METHODS: We analyzed all trial records of the SLCTR over the study period. We collected information regarding trial characteristics and completeness of data entry in the SLCTR data set. RESULTS: During the study period, 210 trials (63% of all applications) were registered with the SLCTR. The number of registered trials showed an increasing trend over the years. All trial registrations had complete entries for all the data fields studied. Only 17.6% of the trials were registered retrospectively. All the registered trials were interventional studies, and the majority (87.6%) were randomized controlled trials. A significant proportion of trials (28.6%) were on noncommunicable diseases, and 12.4% were on pregnancy and its outcomes. Several trials (9.5%) were international collaborative studies. A majority of the Principal Investigators (70.9%) were affiliated to a university. Most of the studies (41.9%) were self-funded by the investigators. Details of ethics review committee approval were available for 96.7% of registered trials. Over a third of the registered trials (37.1%) had completed recruitment at the time of analysis. A majority of the trials (72.8%) had updated trial data since registration. CONCLUSIONS: There is a steady increase in the number of trials registered at the SLCTR. Complete entries for all the data fields were seen in all trial registrations. The SLCTR has made a positive contribution to the emergence of a healthy clinical research environment in Sri Lanka. PMID- 29322623 TI - Clinical practice guidelines in India: Quality appraisal and the use of evidence in their development. AB - BACKGROUND: Guideline development in India has come under increased scrutiny with a growing interest in the use of evidence for guideline development. METHODS: Guidelines on the four leading causes of disability adjusted life years in India (ischemic heart disease, lower respiratory infections, chronic obstructive pulmonary diseases, tuberculosis), published on or after 2010 was searched in electronic databases and by other methods and their quality appraised by using the AGREE-II appraisal tool. In-depth, semistructured interviews were conducted with 15 individuals involved with the development of the included guidelines and the transcripts were analyzed using the framework approach. RESULTS: We included eleven guidelines. The median AGREE II domain scores was highest for "scope and purpose" (81%) and "clarity of presentation" (76%), and lowest for "rigor of development" (31%) and "editorial independence" (33%). Four main themes emerged from the interviews: (1) Guideline development in India was undergoing transition toward adoption of systematic, transparent and evidence-based approaches but several barriers in the form of attitudes toward use of evidence, lack of methodological capacity, inadequate governance structure and funding exist; (2) guideline development was an academic activity restricted to elite institutions and this affects panel composition, the consultative process and implementation of guidelines; (3) mixed views on patient involvement in guideline development; and (4) Taboo & Poor understanding of issues surrounding conflict of interests. CONCLUSION: A multitude of efforts is needed by issuing agencies and the government to ensure development of guidelines in transparent, evidence-based and a systematic manner with high quality in India. PMID- 29322624 TI - Nasogastric tube and outcomes of Clostridium difficile infection: A systematic review and meta-analysis. AB - AIMS: Clostridium difficile infection (CDI) is a major concern for public health worldwide. Interestingly, the risk of poor clinical outcomes of CDI in patients with nasogastric tube (NGT) insertion is still controversial. The aim of this study was to assess the outcomes of CDI in patients with NGT insertion. METHODS: A literature search was performed using MEDLINE, EMBASE, and The Cochrane Database of Systematic Reviews from inception through November 2017. Studies that reported relative risks, odds ratios, or hazard ratios comparing the clinical outcome of CDI in patients with NGT versus those who did not were included. Pooled risk ratios (RR) and 95% confidence interval (CI) were calculated using a random-effect, generic inverse variance method. RESULTS: Eight observational studies were included in our analysis to assess the association between NGT insertion and risk of poor outcome of CDI. The pooled RR of severe or complicated clinical outcomes of CDI in patients with NGT insertion was 1.81 (95% CI: 1.17 to 2.81). CONCLUSIONS: This study demonstrated a statistically significant association between NGT insertion and risk of poor outcomes of CDI. This finding may impact clinical management and primary prevention of CDI. Avoidance of unnecessary NGT uses would improve the clinical outcomes of CDI. PMID- 29322625 TI - Variations in dosimetric distribution and plan complexity with collimator angles in hypofractionated volumetric arc radiotherapy for treating prostate cancer. AB - PURPOSE: Hypofractionated radiotherapy can reduce treatment durations and produce effects identical to those of conventionally fractionated radiotherapy for treating prostate cancer. Volumetric arc radiotherapy (VMAT) can decrease the treatment machine monitor units (MUs). Previous studies have shown that VMAT with multileaf collimator (MLC) rotation exhibits better target dose distribution. Thus, VMAT with MLC rotation warrants further investigation. METHODS AND MATERIALS: Ten patients with prostate cancer were included in this study. The prostate gland and seminal vesicle received 68.75 and 55 Gy, respectively, in 25 fractions. A dual-arc VMAT plan with a collimator angle of 0 degrees was generated and the same constraints were used to reoptimize VMAT plans with different collimator angles. The conformity index (CI), homogeneity index (HI), gradient index (GI), normalized dose contrast (NDC), MU, and modulation complexity score (MCSV ) of the target were analyzed. The dose-volume histogram of the adjacent organs was analyzed. A Wilcoxon signed-rank test was used to compare different collimator angles. RESULTS: Optimum values of CI, HI, and MCSV were obtained with a collimator angle of 45 degrees . The optimum values of GI, and NDC were observed with a collimator angle of 0 degrees . In the rectum, the highest values of maximum dose and volume receiving 60 Gy (V60 Gy ) were obtained with a collimator angle of 0 degrees , and the lowest value of mean dose (Dmean ) was obtained with a collimator angle of 45 degrees . In the bladder, high values of Dmean were obtained with collimator angles of 75 degrees and 90 degrees . In the rectum and bladder, the values of V60 Gy obtained with the other tested angles were not significantly higher than those obtained with an angle of 0 degrees . CONCLUSION: This study found that MLC rotation affects VMAT plan complexity and dosimetric distribution. A collimator angle of 45 degrees exhibited the optimal values of CI, HI, and MCSv among all the tested collimator angles. Late side effects of the rectum and bladder are associated with high-dose volumes by previous studies. MLC rotation did not have statistically significantly higher values of V60 Gy in the rectum and bladder than did the 0 degrees angle. We thought a collimator angle of 45 degrees was an optimal angle for the prostate VMAT treatment plan. The findings can serve as a guide for collimator angle selection in prostate hypofractionated VMAT planning. PMID- 29322626 TI - Restorations in primary teeth: a systematic review on survival and reasons for failures. AB - BACKGROUND: Several restorative materials with specific indications are used for filling cavities in primary teeth. AIM: To systematically review the literature in order to investigate the longevity of primary teeth restorations and the reasons for failure. DESIGN: Electronic databases were screened, and eligible studies were hand-searched to find longitudinal clinical studies evaluating the survival of restorations (class I, class II, and crown) placed with different materials in primary teeth with at least one year of follow-up. RESULTS: Thirty one studies were included, and a high bias risk was observed. Overall, 12,047 restorations were evaluated with 12.5% of failure rate. A high variation on annual failure rate (AFR) was detected (0-29.9%). Composite resin showed the lowest AFRs (1.7-12.9%). Stainless steel crowns (SSC) had the highest success rate (96.1%). Class I restorations and restorations placed using rubber dam presented better AFR. The main reason for failure observed was secondary caries (36.5%). CONCLUSIONS: An elevated number of failures were observed due to recurrent caries, highlighting the need for professionals to work with a health promoting approach. The high variation on failure rate among the materials can be due to children's behavior during the procedure, which demands short dental appointments and a controlled environment. PMID- 29322627 TI - Safety and feasibility of laparoscopic reoperation for treatment of anastomotic leakage after laparoscopic colorectal cancer surgery. AB - INTRODUCTION: The safety and feasibility of laparoscopic reoperation for anastomotic leakage remain unclear. METHODS: A total of 3321 patients underwent laparoscopic surgery for primary colorectal cancer at a tertiary referral center from September 2002 to May 2016. Of these, 31 patients who underwent reoperation for treatment of anastomotic leakage were enrolled in this study and divided into two reoperation groups: laparoscopic (n = 15) and open (n = 16). Data regarding patient demographics, operative outcomes, morbidity, length of hospital stay, mortality, and stoma closure after reoperation in the two groups were compared. RESULTS: No significant difference was observed in the primary surgery procedure between the two groups. Estimated blood loss (1 vs 9 mL, P = 0.020), total postoperative complications (26.7% vs 68.8%, P = 0.032), wound infection (0.0% vs 31.2%, P = 0.043), and postoperative hospital stay (18 vs 31 days, P = 0.017) were significantly better in the laparoscopic group than in the open group. Although the rate of stoma closure after reoperation was higher in the laparoscopic group, the difference was not significant (86.7% vs 62.5%, P = 0.220). CONCLUSIONS: Laparoscopic reoperation exhibited better short-term outcomes than open reoperation for selected patients with anastomotic leakage. PMID- 29322628 TI - Case of cecal volvulus successfully treated with endoscopic colopexy. AB - We herein report a case of cecal volvulus successfully treated with endoscopic colopexy. A 73-year-old man with a high fever and abdominal fullness was diagnosed with ileus caused by cecal volvulus. CT showed a dilated cecum and small intestine without bowel strangulation as well as acute pneumonia. Because the pneumonia increased the risk associated with general anesthesia, we attempted decompression of the bowel using endoscopy to avoid surgery. On day 1, a transanal ileus tube was inserted to the terminal ileum through the dilated cecum. On day 7, the bowel torsion spontaneously released. On day 8, we performed percutaneous endoscopic colopexy to fix the cecum on the abdominal wall and prevent re-twisting. The patient was discharged on day 15 without postoperative complications. Percutaneous endoscopic colopexy for cecal volvulus may be a treatment option when the risk associated with general anesthesia or surgery is high because of a comorbidity. PMID- 29322629 TI - Material dependent fretting corrosion in spinal fusion devices: Evaluation of onset and long-term response. AB - Posterior spinal fusion implants include number of interconnecting components, which are subjected to micromotion under physiological loading conditions inducing a potential for fretting corrosion. There is very little known about the fretting corrosion in these devices in terms of the minimum angular displacement (threshold) necessary to induce fretting corrosion or the amount of fretting corrosion that can arise during the life of the implant. Therefore, the first goal was to evaluate the threshold fretting corrosion in three anatomical orientations and second the long-term fretting corrosion for the three different material types of spinal implants under physiological loading conditions. In threshold test, axial rotation exhibited highest changes in open circuit potential (VOCP in mV) and induced fretting currents (Ifrett in uA) for cobalt chrome (DeltaVOCP : 24.71 +/- 5.53; DeltaIfrett : 4.03 +/- 0.51) and stainless steel (DeltaVOCP : 28.21 +/- 6.97; DeltaIfrett : 2.98 +/- 0.42) constructs whereas it was flexion-extension for titanium constructs (DeltaVOCP : 4.51 +/- 2.48; DeltaIfrett : 0.38 +/- 0.12). Long-term test indicated that the titanium (VOCP :101 +/- 0.06; Ifrett : 0.07 +/- 0.02) and cobalt chrome (VOCP : 140.67 +/- 0.04; Ifrett : 0.12 +/- 0.05) constructs were more resistant to the fretting corrosion compared to stainless steel (VOCP : -135.33 +/- 0.31; Ifrett : 2.63 +/- 1.06). (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2858-2868, 2018. PMID- 29322630 TI - Interlaboratory variability in the measurement of direct oral anticoagulants: results from the external quality assessment scheme. AB - : Essentials Tests for direct oral anticoagulants (DOACs) are not widely applied. These tests are perceived to be difficult to run and subjected to large between lab variation. We carried out proficiency testing surveys for DOAC testing in Italy. Interlab variability was small and similar to that of the international normalised ratio. SUMMARY: Background Tests for direct oral anticoagulants (DOACs) are not widely available. The perception that they are difficult to perform and are subject to large between-laboratory variation makes their implementation difficult. Aims We carried out proficiency-testing surveys for DOACs within the activity of the external quality-assessment scheme of the Italian Federation of Thrombosis Centers. Design Participants were provided with coded freeze-dried plasmas without or with graded concentrations of the three main DOACs, and asked to measure prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time and DOAC concentrations with dedicated tests. The results were centralized for statistical analysis. Results and conclusions All participants (n = 235) reported results for PT and APTT, and approximately one-third reported results for DOAC concentration. PT and APTT showed variable responsiveness to DOACs: PT was more responsive to rivaroxaban than to dabigatran or apixaban. APTT was more responsive to dabigatran than to rivaroxaban or apixaban. The thrombin time ratio (test/normal) was close to unity for plasmas without dabigatran, and was high (i.e. 7.6-fold or 15.4-fold longer than the plasma free from the drug) for plasmas containing dabigatran at low (i.e. 42 ng mL-1 ) or high (i.e. 182 ng mL-1 ) concentration. Dedicated tests were responsive to the respective drugs, and their interlaboratory variability was relatively small (overall coefficients of variation of 8.7%, 8.4% or 10.3% for dabigatran, rivaroxaban and apixaban, respectively) and was comparable to that observed within the same survey for the International Normalized Ratio (i.e. 11.4%). In conclusion, tests for DOAC measurement performed reasonably well in a national quality-control scheme. Regulatory authorities should urgently issue recommendations on their use, and clinical laboratories should make them available. PMID- 29322632 TI - Approaches to sample size calculation for clinical trials in rare diseases. AB - We discuss 3 alternative approaches to sample size calculation: traditional sample size calculation based on power to show a statistically significant effect, sample size calculation based on assurance, and sample size based on a decision-theoretic approach. These approaches are compared head-to-head for clinical trial situations in rare diseases. Specifically, we consider 3 case studies of rare diseases (Lyell disease, adult-onset Still disease, and cystic fibrosis) with the aim to plan the sample size for an upcoming clinical trial. We outline in detail the reasonable choice of parameters for these approaches for each of the 3 case studies and calculate sample sizes. We stress that the influence of the input parameters needs to be investigated in all approaches and recommend investigating different sample size approaches before deciding finally on the trial size. Highly influencing for the sample size are choice of treatment effect parameter in all approaches and the parameter for the additional cost of the new treatment in the decision-theoretic approach. These should therefore be discussed extensively. PMID- 29322631 TI - Cold-inducible RNA binding protein in cancer and inflammation. AB - RNA binding proteins (RBPs) play key roles in RNA dynamics, including subcellular localization, translational efficiency and metabolism. Cold-inducible RNA binding protein (CIRP) is a stress-induced protein that was initially described as a DNA damage-induced transcript (A18 hnRNP), as well as a cold-shock domain containing cold-stress response protein (CIRBP) that alters the translational efficiency of its target messenger RNAs (mRNAs). This review summarizes recent work on the roles of CIRP in the context of inflammation and cancer. The function of CIRP in cancer appeared to be solely driven though its functions as an RBP that targeted cancer-associated mRNAs, but it is increasingly clear that CIRP also modulates inflammation. Several recent studies highlight roles for CIRP in immune responses, ranging from sepsis to wound healing and tumor-promoting inflammation. While modulating inflammation is an established role for RBPs that target cytokine mRNAs, CIRP appears to modulate inflammation by several different mechanisms. CIRP has been found in serum, where it binds the TLR4-MD2 complex, acting as a Damage-associated molecular pattern (DAMP). CIRP activates the NF kappaB pathway, increasing phosphorylation of Ikappakappa and IkappaBalpha, and stabilizes mRNAs encoding pro-inflammatory cytokines. While CIRP promotes higher levels of pro-inflammatory cytokines in certain cancers, it also decreases inflammation to accelerate wound healing. This dichotomy suggests that the influence of CIRP on inflammation is context dependent and highlights the importance of detailing the mechanisms by which CIRP modulates inflammation. WIREs RNA 2018, 9:e1462. doi: 10.1002/wrna.1462 This article is categorized under: RNA in Disease and Development > RNA in Disease RNA Interactions with Proteins and Other Molecules > Protein-RNA Interactions: Functional Implications. PMID- 29322633 TI - Preclinical evaluation of melanocyte transplantation by chitosan-based melanocyte spheroid patch to skin prepared by controlled sunburn blistering. AB - Transplantation of autologous cultured melanocytes as cell suspension has been used for the treatment of vitiligo. The recipient site is often prepared by laser mediated dermabrasion. Such procedures encounter disadvantages including prolonged transplantation duration, unsecured cell adherence to lesional skin and potential scarring. To improve this, here we propose a method by preparing recipient sites before transplantation by psoralen and ultraviolet A (PUVA) induced sunburn followed by transplanting cells with a chitosan-based melanocyte spheroid patch. We evaluated the method in nude mice. Application of methoxsalen soaked filter paper on skin for 30 min followed by ultraviolet A exposure induced controlled sunburn blisters in 2 days. Upon transplantation, the blister roof could be quickly peeled off by a waxing patch. The chitosan membrane on which melanocytes were precultured into multicellular spheroids was transplanted with cells facing the skin. The chitosan patch adhered well to skin and secured the contact of melanocytes with the recipient site. One day later, melanocyte spheroids already detached from the chitosan membrane and adhered to the recipient skin. Our results suggest that the combination of chitosan-based melanocyte spheroid patch with epidermal ablation by PUVA-induced sunburn reaction can be a feasible method to facilitate melanocyte transplantation. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2535 2543, 2018. PMID- 29322634 TI - Structure-Property Relations in Carbon Nanotube Fibers by Downscaling Solution Processing. AB - At the microscopic scale, carbon nanotubes (CNTs) combine impressive tensile strength and electrical conductivity; however, their macroscopic counterparts have not met expectations. The reasons are variously attributed to inherent CNT sample properties (diameter and helicity polydispersity, high defect density, insufficient length) and manufacturing shortcomings (inadequate ordering and packing), which can lead to poor transmission of stress and current. To efficiently investigate the disparity between microscopic and macroscopic properties, a new method is introduced for processing microgram quantities of CNTs into highly oriented and well-packed fibers. CNTs are dissolved into chlorosulfonic acid and processed into aligned films; each film can be peeled and twisted into multiple discrete fibers. Fibers fabricated by this method and solution-spinning are directly compared to determine the impact of alignment, twist, packing density, and length. Surprisingly, these discrete fibers can be twice as strong as their solution-spun counterparts despite a lower degree of alignment. Strength appears to be more sensitive to internal twist and packing density, while fiber conductivity is essentially equivalent among the two sets of samples. Importantly, this rapid fiber manufacturing method uses three orders of magnitude less material than solution spinning, expanding the experimental parameter space and enabling the exploration of unique CNT sources. PMID- 29322635 TI - The effect of cell density, proximity, and time on the cytotoxicity of magnesium and galvanically coupled magnesium-titanium particles in vitro. AB - Magnesium (Mg) and galvanically coupled magnesium-titanium (Mg-Ti) particles in vitro have been reported previously to kill cells in a dosage-dependent manner. Mg-Ti particles kill cells more effectively than Mg alone, due to the galvanic effect of Mg and Ti. This study further investigated the in vitro cytotoxicity of Mg and Mg-Ti in terms of particle concentration, cell density, time, and proximity. Cell density has an effect on cell viability only at low particle concentrations (below 250 ug/mL), where cell viability dropped only for lower cell densities (5000-10,000 cells/cm2 ) and not for higher cell densities (20,000 30,000 cells/cm2 ), showing that the particles cannot kill if there are more cells present. Cytotoxicity of Mg and Mg-Ti particles is quick and temporary, where the particles kill cells only during particle corrosion (first 24 h). Depending on the percentage of surviving cells, particle concentrations, and ongoing corrosion activity, the remaining live cells either proliferated and recovered, or just remained viable and quiescent. The particle killing is also proximity-dependent, where cell viability was significantly higher for cells far away from the particles (greater than ~1 mm) compared to those close to the particles (less than ~1 mm). Although the increase of pH does affect cell viability negatively, it is not the sole killing factor since cell viability is significantly dependent on particle type and proximity but not pH. Mg and Mg-Ti particles used in this study are large enough to prevent direct cell phagocytosis so that the cell killing effect may be attributed to solely electrochemical reactions. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1428 1439, 2018. PMID- 29322636 TI - Lower urinary tract dysfunction in pediatric patients after ureteroneocystostomy due to vesicoureteral reflux: Long-term follow-up. AB - OBJECTIVE: The aim of the present study was to evaluate long-term lower urinary tract dysfunction (LUTD) in pediatric patients who underwent ureteroneocystostomy due to vesicoureteral reflux. METHODS: The present retrospective study was performed on 61 patients. Patients were divided into 3 groups: Group 1 (n = 26), did not have LUTD; Group 2 (n = 23), had LUTD; and Group 3 (n = 12), was not toilet trained preoperatively. Patients were reassessed regarding de novo LUTD or the persistence of LUTD at least 7 years after the ureteroneocystostomy. RESULTS: Mean patient age was 7 years (range 1-15) when ureteroneocystostomy was performed and the surgery was associated with a 92% success rate. The mean follow-up period was 10 years (range 7-12 years). Postoperative LUTD was present in 6 (23%), 12 (52%), and 1 (8.3%) patients in Groups 1, 2, and 3, respectively. The presence of LUTD before surgery and bilateral repair in the same setting were predictive risk factors for the presence of LUTD during the long-term follow-up. LUTD occurred at higher rate in Group 2 than in Groups 1 and 3 (52% vs. 23% and 8.3%, respectively; P = .015). The presence of de novo LUTD was significant in Group 1 compared with the presence of preoperative and postoperative LUTD (P = .031, Wilcoxon analysis). CONCLUSIONS: LUTD may not resolve after a ureteroneocystostomy, and additional therapy could be necessary. Due to the probability of damage to the ureterovesical nerve and/or disturbed bladder dynamics, de novo LUTD may occur in patients with bilateral high-grade reflux without LUTD before a ureteroneocystostomy. PMID- 29322637 TI - Maternal exposures and risk of oral clefts in South Vietnam. AB - BACKGROUND: Oral clefts are among the most common congenital anomalies. Most studies on risk factors of oral clefts have been carried out in developed countries. We investigated the associations between maternal exposures in the first trimester and oral clefts in South Vietnam. METHODS: We conducted a hospital-based case-control study during October 2014-November 2015. Cases included 170 patients with nonsyndromic cleft lip with or without cleft palate and those with cleft palate only. Controls were 170 children without oral clefts, matched to each case by age and gender. Mothers were interviewed using structured questionnaire. We performed conditional logistic regression to estimate odds ratios (ORs) and 95% confidence intervals (CIs). RESULTS: Passive smoking was associated with increased risk of oral clefts in univariate analysis, but not in multivariable analysis (adjusted OR [aOR] = 1.68; 95% CI, 0.53-5.37). No association was observed between liver intake and oral clefts. Compared with nondrinkers, mothers who reported consumption of caffeine-containing beverages were more likely to have an infant with oral cleft (aOR = 5.89; 95% CI, 1.08 32.00). Periconceptional use of folic acid and multivitamins supplementation was associated with reduced risk of oral clefts (aOR = 0.01; 95% CI, 0.00-0.09 and aOR = 0.03; 95% CI, 0.01-0.13, respectively). CONCLUSIONS: The results suggest no associations of maternal passive smoking or liver intake with oral clefts. Periconceptional use of folic acid or multivitamins may protect against oral clefts. Further studies are warranted to examine the roles of caffeine consumption in pregnant mothers on occurrence of oral clefts in offspring. PMID- 29322638 TI - Comparative evaluation of the use of magnification loupes in supragingival scaling procedures. AB - AIM: The main aim of the present investigation was to evaluate clinical and patient-centered outcomes of supragingival scaling performed with or without the use of 2.5* magnification loupes and illumination. METHODS: A total of 30 patients, divided into three groups, were treated with 2.5* loupes and 2.5* loupes and illumination, and without any magnification device. Full-mouth plaque score percentage (FMPS%) and full-mouth bleeding score percentage (FMBS%) were registered before and after the treatment. Moreover, perceived pain and quality of the treatment were recorded using a visual analog scale. Appropriate statistical analysis was adopted to analyze between-group differences for the investigated parameters. RESULTS: All of the patients completed the study protocol. All the groups were homogeneous at baseline. Supragingival scaling caused a significant reduction of FMPS% and FMBS% in all groups without differences among them. Moreover, no differences could be found for patient centered outcomes. The duration of the treatment was significantly higher in the group in which loupes and illumination was used than in the control group. CONCLUSIONS: The use of magnification loupes (with or without illumination) did not significantly improve clinical and patient-centered outcomes of supragingival scaling procedures. PMID- 29322639 TI - Prokaryotes in the WAIS Divide ice core reflect source and transport changes between Last Glacial Maximum and the early Holocene. AB - We present the first long-term, highly resolved prokaryotic cell concentration record obtained from a polar ice core. This record, obtained from the West Antarctic Ice Sheet (WAIS) Divide (WD) ice core, spanned from the Last Glacial Maximum (LGM) to the early Holocene (EH) and showed distinct fluctuations in prokaryotic cell concentration coincident with major climatic states. The time series also revealed a ~1,500-year periodicity with greater amplitude during the Last Deglaciation (LDG). Higher prokaryotic cell concentration and lower variability occurred during the LGM and EH than during the LDG. A sevenfold decrease in prokaryotic cell concentration coincided with the LGM/LDG transition and the global 19 ka meltwater pulse. Statistical models revealed significant relationships between the prokaryotic cell record and tracers of both marine (sea salt sodium [ssNa]) and burning emissions (black carbon [BC]). Collectively, these models, together with visual observations and methanosulfidic acid (MSA) measurements, indicated that the temporal variability in concentration of airborne prokaryotic cells reflected changes in marine/sea-ice regional environments of the WAIS. Our data revealed that variations in source and transport were the most likely processes producing the significant temporal variations in WD prokaryotic cell concentrations. This record provided strong evidence that airborne prokaryotic cell deposition differed during the LGM, LDG, and EH, and that these changes in cell densities could be explained by different environmental conditions during each of these climatic periods. Our observations provide the first ice-core time series evidence for a prokaryotic response to long-term climatic and environmental processes. PMID- 29322640 TI - Conserved roles of Osiris genes in insect development, polymorphism and protection. AB - Much of the variation among insects is derived from the different ways that chitin has been moulded to form rigid structures, both internal and external. In this study, we identify a highly conserved expression pattern in an insect-only gene family, the Osiris genes, that is essential for development, but also plays a significant role in phenotypic plasticity and in immunity/toxicity responses. The majority of Osiris genes exist in a highly syntenic cluster, and the cluster itself appears to have arisen very early in the evolution of insects. We used developmental gene expression in the fruit fly, Drosophila melanogaster, the bumble bee, Bombus terrestris, the harvester ant, Pogonomyrmex barbatus, and the wood ant, Formica exsecta, to compare patterns of Osiris gene expression both during development and between alternate caste phenotypes in the polymorphic social insects. Developmental gene expression of Osiris genes is highly conserved across species and correlated with gene location and evolutionary history. The social insect castes are highly divergent in pupal Osiris gene expression. Sets of co-expressed genes that include Osiris genes are enriched in gene ontology terms related to chitin/cuticle and peptidase activity. Osiris genes are essential for cuticle formation in both embryos and pupae, and genes co-expressed with Osiris genes affect wing development. Additionally, Osiris genes and those co-expressed seem to play a conserved role in insect toxicology defences and digestion. Given their role in development, plasticity, and protection, we propose that the Osiris genes play a central role in insect adaptive evolution. PMID- 29322641 TI - Case of laparoscopic right hemicolectomy for ascending colon cancer after aortic graft replacement and revascularization of the superior mesenteric artery. AB - A 67-year-old man who presented with a bloody stool was diagnosed with ascending colon cancer. He had previously experienced thoracic and abdominal aortic dissections, which were treated with thoracic and abdominal aortic grafts and superior mesenteric artery revascularization. We performed a laparoscopic right hemicolectomy with a D3 lymph node dissection. During the laparotomy, we identified the superior mesenteric artery and an enlarged anterior superior pancreaticoduodenal artery. Injury to the latter artery could lead to severe ischemia in multiple organs; therefore, it was crucial to identify the primary feeding artery and vascular anatomy before and during surgery. We chose the laparoscopic right hemicolectomy to avoid injuring the anterior superior pancreaticoduodenal artery and the intra-abdominal abscess. This case study was the first to describe a laparoscopic hemicolectomy after thoracic and abdominal aortic grafts and superior mesenteric artery revascularization. PMID- 29322642 TI - Peste des petits ruminants in China since its first outbreak in 2007: A 10-year review. AB - Peste des petits ruminants (PPR) is a highly infectious disease of small ruminants and caused by small ruminant morbillivirus (SRMV), formerly called peste-des-petits-ruminants virus (PPRV). This disease is circulating in Africa (except most countries in southern Africa), the Arabian Peninsula, the Middle East, and Central, East and South-East Asia. Peste des petits ruminants is still regarded as an exotic disease in China, where its first outbreak was reported in the Ngari region of Tibet in 2007, but effectively controlled by slaughter, vaccination and animal movement restriction in PPR-infected areas. However, PPR re-emerged in Xinjiang of China in December 2013, rapidly spread into much of China in the first half of 2014, but since then was substantially inhibited countrywide. Phylogenetic analysis shows that SRMVs from China share the highest homology with others from its neighbouring countries, possibly indicating the transboundary transmission of SRMVs. In 2015, a national eradication program for PPR was issued and has been being implemented in China, expecting to achieve a PPR-eradicating aim countrywide by 2020. Here, we reviewed a 10-year history (2007-2017) of PPR in China, including two major outbreaks, its infection in wild species, development of diagnostics and vaccines, and implementation of the national eradication program. PMID- 29322644 TI - Rosemary, Castor Oils, and Propolis Extract: Activity Against Candida Albicans and Alterations on Properties of Dental Acrylic Resins. AB - PURPOSE: To evaluate the in vitro activity of 8% rosemary, 2% castor oils, and 12% propolis glycolic extract against Candida albicans, as well as the physical changes of properties in colorless and pink acrylic resins after immersion in these liquids. MATERIALS AND METHODS: Colorimetric, roughness, and Knoop microhardness assays were evaluated in 25 specimens distributed into five groups (3 test groups and 2 control groups - distilled water and hypochlorite 1%), totaling five specimens per group for each acrylic resin (colorless and pink). The specimens were individually immersed for 30 minutes in 10 mL of these liquids, washed, and dried once a week. They were maintained in distilled water at 37 degrees C between processes during all experiments. The analyses were performed before immersion and in the 4th and/or 12th month. In vitro, 18 acrylic resins were exposed to C. albicans and, after a process of 30 minutes in immersion in the five groups cited and oil vehicle control of vesicle (liquid Vaseline), the specimens were washed and incubated for 24 hours in 37 degrees C. The growth was determined by colony counting. For comparisons between the groups in each trial and the disinfection test, paired Student's t-tests and ANOVA with post hoc Tukey were performed by the SPSS program, considering alpha = 0.05. RESULTS: None of the liquids altered the microhardness, but all the natural compounds and 1% sodium hypochlorite (control) altered color and roughness after the 12th month of immersion in these agents. In the colorless specimens, 8% rosemary oil caused a color change similar to water, and less color and roughness alterations when compared to 2% castor oil and 1% sodium hypochlorite, respectively. There was no growth of yeast colonies after immersion in rosemary oil, propolis glycolic extract, and 1% sodium hypochlorite. CONCLUSION: Eight percent rosemary oil has the potential to be used as an acrylic resin disinfectant. PMID- 29322643 TI - Disparities in cancer outcomes across age, sex, and race/ethnicity among patients with pancreatic cancer. AB - Age, sex, and racial/ethnic disparities exist, but are understudied in pancreatic adenocarcinoma (PDAC). We used the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database to determine whether survival and treatment disparities persist after adjusting for demographic and clinical characteristics. Our study included PDAC patients diagnosed between 1992 and 2011. We used Cox regression to compare survival across age, sex, and race/ethnicity within early stage and late-stage cancer subgroups, adjusting for marital status, urban location, socioeconomics, SEER region, comorbidities, stage, lymph node status, tumor location, tumor grade, diagnosis year, and treatment received. We used logistic regression to compare differences in treatment received across age, sex, and race/ethnicity. Among 20,896 patients, 84% were White, 9% Black, 5% Asian, and 2% Hispanic. Median age was 75; 56% were female and 53% had late-stage cancer. Among early-stage patients in the adjusted Cox model, older patient subgroups had worse survival compared with ages 66-69 (HR > 1.1, P < 0.01 for groups >69); no survival differences existed between sexes. Black (HR = 1.1, P = 0.01) and Hispanic (HR = 1.2, P < 0.01) patients had worse survival compared with White. Among late-stage cancer patients, patients over age 84 had worse survival than those aged 66-69 (HR = 1.1, P < 0.01), and males (HR = 1.08, P < 0.01) had worse survival than females; there were no racial/ethnic differences. Older age and minority race/ethnicity were associated with lower likelihood of receiving chemotherapy, radiation, and/or surgery. Age and racial/ethnic disparities in survival outcomes and treatment received exist for PDAC patients; these disparities persist after adjusting for differences in demographic and clinical characteristics. PMID- 29322645 TI - Faecal Escherichia coli as biological indicator of spatial interaction between domestic pigs and wild boar (Sus scrofa) in Corsica. AB - On the Mediterranean island of Corsica, cohabitation between sympatric domestic pigs and Eurasian wild boar (Sus scrofa) is common and widespread and can facilitate the maintenance and dissemination of several pathogens detrimental for the pig industry or human health. In this study, we monitored a population of free-ranging domestic pigs reared in extensive conditions within a 800-ha property located in Central Corsica which was frequently visited by a sympatric population of wild boar between 2013 and 2015. We used GPS collars to assess evidence of a spatially shared environment. Subsequently, we analysed by PFGE of XbaI-restricted DNA if those populations shared faecal Escherichia coli clones that would indicate contact and compared these results with those collected in a distant (separated by at least 50 km) population of wild boar used as control. Results showed that one of eight wild boars sampled in the study area shed E. coli XbaI clones identical to clones isolated from domestic pig sounders from the farm, while wild boar populations sampled in distant parts of the study area shared no identical clone with the domestic pigs monitored. Interestingly, within the sampled pigs, two identical clones were found in 2013 and in 2015, indicating a long-time persisting colonization type. Although the method of isolation of E. coli and PFGE typing of the isolates requires intensive laboratory work, it is applicable under field conditions to monitor potential infectious contacts. It also provides evidence of exchange of microorganisms between sympatric domestic pigs and wild boar populations. PMID- 29322647 TI - Max Bergmann award lecture:Macromolecular medicinal chemistry as applied to metabolic diseases. AB - This review presents the scope of research presented in an October 2016 lecture pertaining to the award of the 2015 Max Bergmann Medal. The advancement in synthetic and biosynthetic chemistry as applied to the discovery of novel macromolecular drug candidates is reviewed. The evolution of the technology from the design, synthesis, and development of the first biosynthetic peptides through the emergence of peptide-based incretin agonists that function by multiple biological mechanisms is exemplified by the progression of such peptides from preclinical to clinical study. A closing section highlights recent progress made in total chemical synthesis of insulin and related peptides. PMID- 29322646 TI - Comparison of hook wire versus coil localization for video-assisted thoracoscopic surgery. AB - BACKGROUND: A hook wire has been most widely used for computed tomography (CT) guided localization before video-assisted thoracoscopic surgery (VATS). However, microcoils have been suggested to replace wires. The purpose of this study was to compare the efficacy, VATS procedure time, and excised volume of specimens of CT guided localization using a hook wire and microcoil. METHODS: The medical records of 106 patients with 110 pulmonary nodules who underwent CT-guided localization using a hook wire (group A) or microcoil (group B) before VATS performed between March 2013 and January 2017 were retrospectively reviewed. RESULTS: The procedure success rate was 100% in both groups. Dislodgement occurred in four patients in group A and not in group B. Patient pain score was significantly lower for group B than group A (4.0 vs. 6.3; P < 0.001). The VATS success rate was higher in group B than in group A (98.1% vs. 91.1%; P = 0.174). The VATS procedure time was significantly shorter for group B than group A (18.8 vs. 23.6 minutes; P = 0.004). The excised volume of surgical specimens was significantly smaller for group B than group A (8.5 vs. 11.7 cm3 ; P = 0.043). No major complications related to the localization procedure were noted in either group. CONCLUSIONS: This study showed similar effectiveness of VATS localization between groups. However, microcoil is superior to hook wire for localization of pulmonary nodules in terms of VATS procedure time and excised volume of surgical specimens, with the advantages of no dislodgement and less patient pain. PMID- 29322648 TI - Max-Bergmann award lecture:A RaPID way to discover bioactive nonstandard peptides assisted by the flexizyme and FIT systems. AB - Although general review articles should cover various people's achievements related to the subject, this review is privileged to describe the technology developed by Suga (and colleagues) as a recipient of the Max-Bergmann Medal in 2016. The technology consists of 3 unique and essential tools, flexizymes, FIT, and RaPID systems. This review describes the history of the development of each tool and discusses the recent applications of the RaPID system to discover potent nonstandard peptides for therapeutic and diagnostic uses. PMID- 29322649 TI - Design, expression, and characterization of the hybrid antimicrobial peptide T catesbeianin-1 based on FyuA. AB - The overuse of antibiotics has resulted in the emergence of antibiotic-resistant bacteria, which presents an urgent need for new antimicrobial agents. At present, antimicrobial peptides have attracted a great deal of attention from researchers. However, antimicrobial peptides often affect a broad range of microorganisms, including the normal flora in a host organism. In the present study, we designed a novel hybrid antimicrobial peptide, expressed the hybrid peptide, and studied its specific target. The hybrid peptide, named T-catesbeianin-1, which includes the FyuA-binding domain of pesticin and the peptide catesbeianin-1, was designed and expressed in Pichia pastoris X-33. Then, we determined the antimicrobial activity, cytotoxicity, and specific target of the peptide. T-catesbeianin-1 has strong antimicrobial activity and binds to FyuA to inhibit or kill Escherichia coli present in clinical specimens and mixed-species culture. In summary, these findings suggested that T-catesbeianin-1 might be promising and specific antibiotic agent for therapeutic application against fyuA+ E. coli. PMID- 29322650 TI - Molecular characterization of the beta-amyloid(4-10) epitope of plaque specific Abeta antibodies by affinity-mass spectrometry using alanine site mutation. AB - Alzheimer disease is a neurodegenerative disease affecting an increasing number of patients worldwide. Current therapeutic strategies are directed to molecules capable to block the aggregation of the beta-amyloid(1-42) (Abeta) peptide and its shorter naturally occurring peptide fragments into toxic oligomers and amyloid fibrils. Abeta-specific antibodies have been recently developed as powerful antiaggregation tools. The identification and functional characterization of the epitope structures of Abeta antibodies contributes to the elucidation of their mechanism of action in the human organism. In previous studies, the Abeta(4-10) peptide has been identified as an epitope for the polyclonal anti-Abeta(1-42) antibody that has been shown capable to reduce amyloid deposition in a transgenic Alzheimer disease mouse model. To determine the functional significance of the amino acid residues involved in binding to the antibody, we report here the effects of alanine single-site mutations within the Abeta-epitope sequence on the antigen-antibody interaction. Specific identification of the essential affinity preserving mutant peptides was obtained by exposing a Sepharose-immobilized antibody column to an equimolar mixture of mutant peptides, followed by analysis of bound peptides using high-resolution MALDI-Fourier transform-Ion Cyclotron Resonance mass spectrometry. For the polyclonal antibody, affinity was preserved in the H6A, D7A, S8A, and G9A mutants but was lost in the F4, R5, and Y10 mutants, indicating these residues as essential amino acids for binding. Enzyme-linked immunosorbent assays confirmed the binding differences of the mutant peptides to the polyclonal antibody. In contrast, the mass spectrometric analysis of the mutant Abeta(4-10) peptides upon affinity binding to a monoclonal anti-Abeta(1-17) antibody showed complete loss of binding by Ala-site mutation of any residue of the Abeta(4-10) epitope. Surface plasmon resonance affinity determination of wild-type Abeta(1-17) to the monoclonal Abeta antibody provided a binding constant KD in the low nanomolar range. These results provide valuable information in the elucidation of the binding mechanism and the development of Abeta-specific antibodies with improved therapeutic efficacy. PMID- 29322652 TI - Introducing the new journal design for the Journal of Peptide Science. PMID- 29322651 TI - Antifungal dipeptides incorporating an inhibitor of homoserine dehydrogenase. AB - The antifungal activity of 5-hydroxy-4-oxo-l-norvaline (HONV), exhibited under conditions mimicking human serum, may be improved upon incorporation of this amino acid into a dipeptide structure. Several HONV-containing dipeptides inhibited growth of human pathogenic yeasts of the Candida genus in the RPMI-1640 medium, with minimal inhibitory concentration values in the 32 to 64 MUg mL-1 range. This activity was not affected by multidrug resistance that is caused by overexpression of genes encoding drug efflux proteins. The mechanism of antifungal action of HONV dipeptides involved uptake by the oligopeptide transport system, subsequent intracellular cleavage by cytosolic peptidases, and inhibition of homoserine dehydrogenase by the released HONV. The relative transport rates determined the anticandidal activity of HONV dipeptides. PMID- 29322654 TI - Brand-to-generic levetiracetam switching: a 4-year prospective observational real life study. AB - BACKGROUND AND PURPOSE: The purpose of this study was to determine whether switching from branded levetiracetam (Keppra(r) ) to a levetiracetam generic equivalent product (Matever(r) ) in an epilepsy cohort could provide adequate results in terms of seizure control and tolerability. METHODS: To be eligible for the study, patients had to have been taking Keppra(r) as monotherapy or polytherapy for at least 6 months. Between March 2013 and April 2017, patients were invited to switch to Matever(r) as part of their follow-up. We evaluated the number of seizures per month, drug-related adverse events and electroencephalography before the switch (T0, baseline) and 6 months after switching (T1). Furthermore, we reported the long-term follow-up of patients who continued to use Matever(r) after the end of the study, considering the most recent visit for each patient (T2). RESULTS: A total of 55 patients refused the switch. Among the remaining 125 patients, 59 (47%) were treated using Keppra(r) as monotherapy and 66 (53%) were on Keppra(r) as polytherapy. All 125 patients were subjected to switching from Keppra(r) to Matever(r) . Comparing patients before (T0) and after (T1) switching, we found no statistically significant differences in terms of seizure frequency and occurrence of adverse effects. There were no significant differences (number of seizures/month and drug-related adverse events) between patients treated with Matever(r) as monotherapy and patients who refused the switch and continued to use Keppra(r) as monotherapy for a long-term follow-up of 48 months. Electroencephalography findings were also unchanged. CONCLUSION: In our sample, brand-to-generic levetiracetam switching was effective and safe in both monotherapy and polytherapy regardless of the epilepsy syndrome. PMID- 29322656 TI - Iatrogenic punctal prolapse. PMID- 29322655 TI - Efficiency of Er:YAG laser in debonding of porcelain laminate veneers by contact and non-contact laser application modes (in vitro study). AB - OBJECTIVE: To determine the efficiency of debonding porcelain laminate veneers (PLV) by using several laser parameters and two different application modes of Er:YAG laser [contact (CM) and non-contact (NCM)], by verification of the consumed PLV debonding time and the changes in dental pulp temperature. MATERIALS AND METHODS: Forty extracted non-carious human maxillary premolars were prepared for receiving PLV. Sixteen of them were divided into two groups, each of them comprised eight samples based on the application mode; group A with NCM, and group B with CM. Veneers of both groups were debonded by the same laser parameters (360 mJ, 15 Hz) during loading of a 15 N force on specially fabricated veneer cervical margins. The primary results showed that the NCM was more efficient, thus, additional groups (C, D, and E) of the same mode and number of samples were tested with different laser parameters of energy and frequency; group C (400 mJ, 10 Hz), group D (270 mJ, 15 Hz), group E (300 mJ, 10 Hz). The failure mode was determined and classified for the debonded samples of all groups. RESULTS: All veneers were debonded and samples of the NCM group had considerably lower debonding time (12.6 seconds) than the CM samples (96.3 seconds), however, higher changes of temperature in NCM (4.2 degrees C) than in CM were observed (2.9 degrees C). The failure mode of samples was either type 1 or 3. CONCLUSION: Er:YAG laser is an effective tool in debonding PLVs. The NCM application mode was more efficient in reducing debonding time than CM application mode but with a higher change in pulp temperature. CLINICAL SIGNIFICANCE: Investigating the efficacy of Er:YAG laser as a non-invasive particle technique for debonding of failed or malpositioned of porcelain laminated veneers. PMID- 29322657 TI - Polyetheretherketone Overlay Prosthesis over High Noble Ball Attachments to Overcome Base Metal Sensitivity: A Clinical Report. AB - A modified polyetheretherketone (PEEK) framework material in combination with heat-polymerized denture base acrylic resin was used for the fabrication of an overlay prosthesis for a patient sensitive to base metals. High noble metal was used for the fabrication of the post/coping/ball attachment assemblies to promote retention and stability. These protruding attachments into the acrylic resin could result in stress concentration; therefore, a framework is often used to strengthen the prosthesis. PEEK frameworks could be a treatment alternative to high noble or Ti frameworks since they combine good mechanical properties with biocompatibility, reduced cost, and common laboratory procedures. PMID- 29322653 TI - Viruses associated with congenital tremor and high lethality in piglets. AB - The recently described atypical porcine pestivirus (APPV) has been associated with congenital tremor (CT) type A-II in piglets in different countries. Another important neurological pathogen of pigs is porcine teschovirus (PTV), which has been associated with non-suppurative encephalomyelitis in pigs with severe or mild neurological disorders. There have been no reports of APPV and/or PTV coinfection associated with CT or encephalomyelitis in Brazilian pig herds. The aim of this study was to describe the pathological and molecular findings associated with simultaneous infection of APPV and PTV in piglets with clinical manifestations of CT that were derived from a herd with high rates of CT associated lethality. In 2017, three piglets from the same litter with CT died spontaneously. The principal pathological alterations in all piglets were secondary demyelination and hypomyelination at the cerebellum, brainstem and spinal cord confirmed by histopathology and luxol fast blue-cresyl violet stain. Additional significant pathological findings included multifocal neuronal necrosis, neuronophagia and gliosis found in the cerebral cortex and spinal cord of all piglets, while atrophic enteritis and mesocolonic oedema were observed in some of them. APPV and PTV RNA were detected in the central nervous system of affected piglets, and PTV was also detected in the intestine and faeces. The pathological alterations and molecular findings together suggest a dual infection due to APPV and PTV at this farm. Moreover, the combined effects of these pathogens can be attributed to the elevated piglet mortality, as coinfections involving PTV have a synergistic effect on the affected animals. PMID- 29322658 TI - Successful resection to treat idiopathic azygos vein aneurysm. AB - Azygos vein aneurysm is a rare disease. Surgical resection is usually performed when it ruptures. To avoid the thromboembolism, procedures that do not touch or push the aneurysm are recommended. Herein, we report a case of idiopathic azygos vein aneurysm. A 56-year-old woman was admitted to the hospital for right lateral chest pain. Chest enhanced multi-detector CT revealed an azygos vein aneurysm in the posterior mediastinal space. No thrombus in the aneurysm was detected before surgery. Video-assisted thoracic surgery was performed to treat the aneurysm. The patient was discharged from the hospital 4 days after surgery. Video-assisted thoracic surgery was a good option to treat an azygos vein aneurysm, and an enhanced multi-detector CT was useful for performing surgery safely. PMID- 29322659 TI - Integrating dose estimation into a decision-making framework for model-based drug development. AB - Model-informed drug discovery and development offers the promise of more efficient clinical development, with increased productivity and reduced cost through scientific decision making and risk management. Go/no-go development decisions in the pharmaceutical industry are often driven by effect size estimates, with the goal of meeting commercially generated target profiles. Sufficient efficacy is critical for eventual success, but the decision to advance development phase is also dependent on adequate knowledge of appropriate dose and dose-response. Doses which are too high or low pose risk of clinical or commercial failure. This paper addresses this issue and continues the evolution of formal decision frameworks in drug development. Here, we consider the integration of both efficacy and dose-response estimation accuracy into the go/no go decision process, using a model-based approach. Using prespecified target and lower reference values associated with both efficacy and dose accuracy, we build a decision framework to more completely characterize development risk. Given the limited knowledge of dose response in early development, our approach incorporates a set of dose-response models and uses model averaging. The approach and its operating characteristics are illustrated through simulation. Finally, we demonstrate the decision approach on a post hoc analysis of the phase 2 data for naloxegol (a drug approved for opioid-induced constipation). PMID- 29322660 TI - Hepatitis C virus infection and risk of osteoporotic fracture: A systematic review and meta-analysis. AB - BACKGROUND/OBJECTIVES: Hepatitis C virus (HCV) infection is one of the most common causes of chronic liver disease. Several epidemiologic studies have suggested that patients with HCV infection might have a higher risk of osteoporotic fracture. However, the data are inconclusive. This systematic review and meta-analysis was conducted with the aims to summarize all available evidence. METHODS: A literature search was performed using MEDLINE and EMBASE database from inception to June 2016. Studies that reported relative risks, odd ratios, or hazard ratios comparing the risk of osteoporotic fracture among HCV infected patients versus subjects without HCV infection were included. Pooled risk ratio (RR) and 95% confidence interval (CI) were calculated using a random effect, generic inverse variance method. RESULTS: Three studies with 362,285 participants met our eligibility criteria and were included in analysis. We found a significantly higher risk of osteoporotic fracture among patients with HCV infection with RR of 1.53 (95% CI 1.09 to 2.14). CONCLUSIONS: Our study demonstrated an increased risk of osteoporotic fracture among HCV-infected patients. Further studies are required to clarify how this risk should be addressed in clinical practice. PMID- 29322661 TI - Utility of three novel insulin resistance-related lipid indices for predicting type 2 diabetes mellitus among people with normal fasting glucose in rural China. AB - BACKGROUND: Inexpensive and easily measured indices are needed for the early prediction of type 2 diabetes mellitus (T2DM) in rural areas of China. The aim of this study was to compare triglyceride glucose (TyG), visceral adiposity (VAI), and lipid accumulation product (LAP) with traditional individual measures and their ratios for predicting T2DM. METHODS: Data for 11 113 people with baseline normal fasting glucose in a rural Chinese cohort were followed for a median of 6.0 years. Cox proportional hazards regression was used to calculate covariate adjusted hazard ratios (aHRs) and 95% confidence intervals (95% CIs) and receiver operating characteristic analysis was used to compare the ability of traditional measures and TyG, VAI, and LAP at baseline to predict T2DM at follow-up. RESULTS: Among individual measures, fasting plasma glucose (FPG) and waist circumference (WC) were strongly associated with T2DM. Of all lipid ratios, an elevated triglycerides (TG) to high-density lipoprotein cholesterol (HDL-C) ratio was associated the most with T2DM. Compared with the first quartiles of TyG, VAI, and LAP, their fourth quartiles were associated with T2DM for men (aHR 3.54 [95% CI 2.08-6.03], 2.89 [1.72-4.87], and 5.02 [2.85-8.85], respectively) and women (6.15 [3.48-10.85], 4.40 [2.61-7.42], and 6.49 [3.48-12.12], respectively). For predicting T2DM risk, TyG, VAI, and LAP were mostly superior to the TG: HDL-C ratio, but did not differ from FPG and WC. CONCLUSIONS: Prediction of T2DM was not improved by TyG, VAI, and LAP versus FPG or WC alone. Therefore, TyG, VAI, and LAP may not be inexpensive tools for predicting T2DM in rural Chinese people. PMID- 29322663 TI - Superficial thrombophlebitis of the legs: still a lot to learn. A rebuttal. PMID- 29322662 TI - Reply to more on: the role of thrombin in gliomas. PMID- 29322664 TI - Further evidence that fibrillar collagen is unable to promote platelet shape change and aggregation in the absence of secondary agonists. Reply to a rebuttal. PMID- 29322665 TI - Superficial thrombophlebitis of the legs: still a lot to learn. Reply to a rebuttal. PMID- 29322668 TI - Discovery of thrombin activatable fibrinolysis inhibitor (TAFI). PMID- 29322666 TI - Discovery of thrombin activatable fibrinolysis inhibitor (TAFI). PMID- 29322669 TI - Editorial. PMID- 29322670 TI - More on: the role of thrombin in gliomas. PMID- 29322671 TI - Discovery of thrombin activatable fibrinolysis inhibitor (TAFI). PMID- 29322672 TI - Discovery of thrombin activatable fibrinolysis inhibitor (TAFI). PMID- 29322673 TI - Attentional bias towards sleep-related stimuli in insomnia disorder: a behavioural and ERP study. AB - Many studies have used behavioural experiments to show an attentional bias towards sleep-related stimuli in people with insomnia disorder. A measurement of event-related potential is needed to investigate the cognitive processing mechanism of the attentional process. The present study used the emotional Stroop paradigm and event-related potentials to measure attentional bias towards sleep negative, sleep-positive and sleep-unrelated neutral words. The study comprised 16 participants with insomnia disorder and 15 participants who were good sleepers. Behavioural data indicated that there was a significant interference effect of sleep-positive words between the insomnia group and the good sleepers, and a marginally significant interference effect from sleep-negative words between groups. In the insomnia group, event-related potential data showed that sleep-negative words elicited higher amplitudes of P1 and N1 components than did sleep-positive and sleep-unrelated words. Our results provide evidence for the early cognitive processing of sleep-negative stimuli, which suggests that the psychological treatment of insomnia could benefit from addressing early hypervigilance towards these stimuli. PMID- 29322676 TI - The full-length sequence of the HLA-C allele, HLA-C*03:02:01. AB - Confirmed the full-length sequence of HLA-C*03:02:01 by cloning and sequencing in a Chinese donor. PMID- 29322674 TI - Exposure to West Nile virus and tick-borne encephalitis virus in dogs in Spain. AB - In the past decade, the spread of emerging zoonotic flaviviruses (genus Flavivirus, family Flaviviridae) has been reported in many regions worldwide, representing a threat to both human and animal health. A serosurvey was carried out to assess exposure and risk factors associated with antigenically related flaviviruses, particularly West Nile virus (WNV), Usutu virus (USUV) and tick borne encephalitis virus (TBEV), in dogs in Spain. Flavivirus antibodies were detected in 39 of 815 dogs (4.8%; 95% CI: 3.3-6.3) by bELISA. Significantly higher seropositivity was observed in hunting dogs compared to pet dogs. Virus neutralization tests confirmed WNV-specific and TBEV-specific antibodies in 11 and 14 bELISA-positive dogs, respectively. This is the first serosurvey of WNV and TBEV in dogs in Spain and the first report of TBEV circulation in this country. The seropositivity obtained indicates widespread, but not homogeneous, distribution of WNV and TBEV in dogs in Spain. In 2013 and 2015, WNV-seropositive dogs were detected in those areas of Andalusia where the highest number of WNV outbreaks were reported in both horses and humans. Antibodies against TBEV have been found in dogs sampled in two different periods and regions in Spain. Serosurveillance in dogs could be a complementary way of monitoring the activity of emerging flaviviruses in Spain. PMID- 29322677 TI - Corrigendum. PMID- 29322678 TI - Alteration of IgG4 levels in cerebrospinal fluid in IgG4-related disease. PMID- 29322679 TI - Maximising direct observation of procedural skills for learning in the emergency department. PMID- 29322680 TI - Microbial chemotaxis in the environment: An annotated selection of World Wide Web sites relevant to the topics in environmental microbiology. PMID- 29322681 TI - Gut microbiome contributes to impairment of immunity in pulmonary tuberculosis patients by alteration of butyrate and propionate producers. AB - Tuberculosis (TB) is primarily associated with decline in immune health status. As gut microbiome (GM) is implicated in the regulation of host immunity and metabolism, here we investigate GM alteration in TB patients by 16S rRNA gene and whole-genome shotgun sequencing. The study group constituted of patients with pulmonary TB and their healthy household contacts as controls (HCs). Significant alteration of microbial taxonomic and functional capacity was observed in patients with active TB as compared to the HCs. We observed that Prevotella and Bifidobacterium abundance were associated with HCs, whereas butyrate and propionate-producing bacteria like Faecalibacterium, Roseburia, Eubacterium and Phascolarctobacterium were significantly enriched in TB patients. Functional analysis showed reduced biosynthesis of vitamins and amino acids in favour of enriched metabolism of butyrate and propionate in TB subjects. The TB subjects were also investigated during the course of treatment, to analyse the variation of GM. Although perturbation in microbial composition was still evident after a month's administration of anti-TB drugs, significant changes were observed in metagenome gene pool that pointed towards recovery in functional capacity. Therefore, the findings from this pilot study suggest that microbial dysbiosis may contribute to pathophysiology of TB by enhancing the anti-inflammatory milieu in the host. PMID- 29322682 TI - Stereotactic ablative radiotherapy versus lobectomy for stage I non-small cell lung cancer: A systematic review. AB - BACKGROUND: There is debate regarding the use of stereotactic ablative radiotherapy (SABR) or surgery for patients with early stage non-small cell lung cancer (NSCLC). This meta-analysis compared the clinical efficacy of SABR and lobectomy in stage I NSCLC patients. METHODS: An online search identified eight eligible articles (including 2 trials and 7 cohort studies) for inclusion. The odds ratio (OR) was used as a summary statistic. Overall survival (OS), cause specific survival (CSS), and recurrence-free survival (RFS) were selected to calculate ORs with 95% confidence intervals (CI). Fixed-effects or random-effects models were conducted according to study heterogeneity. RESULTS: There were no significant differences between SABR and lobectomy in terms of one-year OS or CSS. Significant benefits of surgery were observed in three-year OS (OR 2.11, 95% CI 1.55-2.86), three-year CSS (OR 1.94, 95% CI 1.05-3.57), three-year RFS (OR 1.63, 95% CI 1.12-2.36), and five-year OS (OR 2.40, 95% CI 1.71-3.36). In addition, lobectomy demonstrated a beneficial trend in one-year RFS, five-year RFS, and CSS. CONCLUSION: Meta-analyses of current evidence suggested that lobectomy provides better long-term survival outcomes for stage I NSCLC patients. PMID- 29322683 TI - Exploring the research culture of nurses and allied health professionals (AHPs) in a research-focused and a non-research-focused healthcare organisation in the UK. AB - AIMS AND OBJECTIVES: To explore the research culture of nurses and allied health professionals (AHPs) in the UK and the influence of a dedicated research strategy and funding. It is important to understand the culture in order to effectively promote evidence-based patient care. The primary aim of this research was to explore the influence of research-focused exposure on the research culture of nurses and AHPs in the UK and to identify whether there was a difference in the research culture between a research-focused and non-research-focused clinical area (City and Riverside Hospitals). BACKGROUND: This is a unique and novel study that explored and compared the research culture stance of both AHPs and nurses. DESIGN: METHODS: A mixed methods design was used in this study. Tools used included the "Research Capacity and Culture tool" as an online survey, three focus group discussions and five semi-structured interviews with senior managers. Focus groups included research-naive groups from both hospitals and a research active group from City Hospital. RESULTS: There were 224 responses received from 941 surveys with a 24% response rate. Descriptive statistics of the survey results indicated that there was a difference (p = .001) in the mean score of the research culture between City Hospital (5.35) and Riverside Hospital (3.90), but not between nurses and AHPs (p = .12). Qualitative data findings from the framework analysis were congruent and supported the survey results. The results provided empirical evidence to support a whole-level approach in order to improve the research culture. Both findings showed that there may not be any difference in the research culture between professional groups. Importantly, new evidence is presented to suggest that there were crucial communication issues which were hampering the research culture and there was a lack of support at the middle management level which needed to be tackled to improve the research culture of nurses and AHPs. RELEVANCE TO CLINICAL PRACTICE: The study highlighted the need to include a whole-level approach in organisation to improve research culture and to include communication within the Cooke's framework if evidence-based practice is to influence the quality of patient care. PMID- 29322684 TI - Non-surgical periodontal therapy reduces salivary adipocytokines in chronic periodontitis patients with and without obesity. AB - AIM: The aim of the present study was to assess the effect of scaling and root planing (SRP) on periodontal parameters and whole salivary resistin and interleukin (IL)-6 levels in chronic periodontitis (CP) patients with and without obesity. METHODS: Participants were divided into two groups; group 1 included obese and non-obese individuals with CP; and group 2 included obese and non-obese individuals without CP. In both groups, bleeding on probing (BOP) and probing depth (PD) >=4 mm and whole salivary resistin and IL-6 levels were measured using enzyme-linked immunosorbent assay at baseline and 6 months after SRP. The number of missing teeth was counted, and marginal bone loss was measured on digital panoramic radiographs at baseline and 6 months' postoperatively. RESULTS: BOP was significantly higher among obese patients in group 1 than obese (P < .001) and non-obese (P < .001) individuals in group 2. At 6 months' follow up, BOP (P < .001) and PD >=4 mm (P < .001) were significantly lower among obese and non-obese patients in group 1 than their respective baseline values. At 6 months' follow up, BOP (P < .001) and PD >=4 mm (P < .001) were significantly higher among obese and non-obese individuals in group 1 compared with individuals in group 2. CONCLUSION: SRP is effective in reducing periodontal inflammation in CP patients with and without obesity. CP seems to be the primary factor that influences periodontal status and the expression of resistin and IL-6 levels in obese and non-obese patients. PMID- 29322685 TI - Feasibility, Safety, and Tolerance of Mesenchymal Stem Cell Therapy for Obstructive Chronic Lung Allograft Dysfunction. AB - Feasibility, tolerance, and safety of intravenous infusions of allogeneic mesenchymal stem cell (MSC) therapy in lung transplant recipients with bronchiolitis obliterans syndrome (BOS) are not well established. MSCs were manufactured, cryopreserved, transported to our facility, thawed, and infused into nine recipients with moderate BOS (average drop in forced expiratory volume in 1 second was 56.8% +/- 3.2% from post-transplant peak) who were refractory to standard therapy and not candidates for retransplant. Cells were viable and sterile prior to infusion. Patients received a single infusion of either 1 (n = 3), 2 (n = 3), or 4 (n = 3) million MSCs per kg. Patients were medically evaluated before; during; and at 24 hours, 1 week, and 1 month after infusion for evidence of infusion-related adverse events and tolerance of therapy. Vital signs, pulmonary function test results, Borg Dyspnea Index, and routine laboratory data were recorded. Vital signs and O2 saturation did not significantly change during or up to 2 hours after MSC infusion. There were no significant changes in gas exchange variables, pulmonary function test results, or laboratory values at 1, 7, and 30 days postinfusion compared with preinfusion values. Infusion of MSCs in patients with BOS was feasible, safe, and well tolerated and did not produce any significant adverse changes in clinical, functional, or laboratory variables during or up to 30 days after infusion. Manufacturing, transport, and administration of intravenous, allogeneic bone marrow-derived MSCs in doses from 1 to 4 million MSCs per kg is safe in lung transplant recipients with BOS. Stem Cells Translational Medicine 2018;7:161-167. PMID- 29322686 TI - Human papilloma virus: An etiological and prognostic factor for oral cancer? AB - The increasing prevalence of human papilloma virus (HPV)-positive oral tumors can be considered an epidemic. Although the incidence of HPV cervical cancer is decreasing, the incidence of oral cavity and oropharyngeal cancers associated with HPV is increasing. The presence of certain HPV genotypes could be a predictor of future oral cancer lesions, although lesions associated with HPV could be less aggressive and exhibit a higher survival rate. In the present study, we review the most important biologic, clinic, epidemiologic, and prognostic factors associated with HPV infection and oral cancer. PMID- 29322687 TI - Abnormal fronto-striatal activation as a marker of threshold and subthreshold Bulimia Nervosa. AB - This study aimed to determine whether functional disturbances in fronto-striatal control circuits characterize adolescents with Bulimia Nervosa (BN) spectrum eating disorders regardless of clinical severity. FMRI was used to assess conflict-related brain activations during performance of a Simon task in two samples of adolescents with BN symptoms compared with healthy adolescents. The BN samples differed in the severity of their clinical presentation, illness duration and age. Multi-voxel pattern analyses (MVPAs) based on machine learning were used to determine whether patterns of fronto-striatal activation characterized adolescents with BN spectrum disorders regardless of clinical severity, and whether accurate classification of less symptomatic adolescents (subthreshold BN; SBN) could be achieved based on patterns of activation in adolescents who met DSM5 criteria for BN. MVPA classification analyses revealed that both BN and SBN adolescents could be accurately discriminated from healthy adolescents based on fronto-striatal activation. Notably, the patterns detected in more severely ill BN compared with healthy adolescents accurately discriminated less symptomatic SBN from healthy adolescents. Deficient activation of fronto-striatal circuits can characterize BN early in its course, when clinical presentations are less severe, perhaps pointing to circuit-based disturbances as useful biomarker or risk factor for the disorder, and a tool for understanding its developmental trajectory, as well as the development of early interventions. PMID- 29322689 TI - The limits of TEM and beyond - a video vignette. PMID- 29322688 TI - Phylodynamics of classical swine fever virus with emphasis on Ecuadorian strains. AB - Classic swine fever virus (CSFV) is a Pestivirus from the Flaviviridae family that affects pigs worldwide and is endemic in several Latin American countries. However, there are still some countries in the region, including Ecuador, for which CSFV molecular information is lacking. To better understand the epidemiology of CSFV in the Americas, sequences from CSFVs from Ecuador were generated and a phylodynamic analysis of the virus was performed. Sequences for the full-length glycoprotein E2 gene of twenty field isolates were obtained and, along with sequences from strains previously described in the Americas and from the most representative strains worldwide, were used to analyse the phylodynamics of the virus. Bayesian methods were used to test several molecular clock and demographic models. A calibrated ultrametric tree and a Bayesian skyline were constructed, and codons associated with positive selection involving immune scape were detected. The best model according to Bayes factors was the strict molecular clock and Bayesian skyline model, which shows that CSFV has an evolution rate of 3.2 * 10-4 substitutions per site per year. The model estimates the origin of CSFV in the mid-1500s. There is a strong spatial structure for CSFV in the Americas, indicating that the virus is moving mainly through neighbouring countries. The genetic diversity of CSFV has increased constantly since its appearance, with a slight decrease in mid-twentieth century, which coincides, with eradication campaigns in North America. Even though there is no evidence of strong directional evolution of the E2 gene in CSFV, codons 713, 761, 762 and 975 appear to be selected positively and could be related to virulence or pathogenesis. These results reveal how CSFV has spread and evolved since it first appeared in the Americas and provide important information for attaining the goal of eradication of this virus in Latin America. PMID- 29322690 TI - Microbially mediated aluminosilicate formation in acidic anaerobic environments: A cell-scale chemical perspective. AB - Through the use of scanning transmission electron microscopy (STEM) combined with other complementary techniques (SEM, cryo-TEM, HRTEM, and EELS), we have studied the interaction of microorganisms inhabiting deep anoxic waters of acidic pit lakes with dissolved aluminum, silica, sulfate, and ferrous iron. These elements were close to saturation (Al, SiO2 ) or present at very high concentrations (0.12 m Fe(II), 0.12-0.22 m SO42- ) in the studied systems. The anaerobic conditions of these environments allowed investigation of geomicrobial interactions that are difficult to see in oxidized, Fe(III)-rich environments. Detailed chemical maps and through-cell line scans suggest both extra- and intracellular accumulation of Al, Si, S, and Fe(II) in rod-like cells and other structures (e.g., spherical particles and bacteriomorphs) of probable microbial origin. The bacterial rods showed external nanometric coatings of adsorbed Fe(II) and Al on the cell surface and cell interiors with significant presence of Al, Si, and S. These microbial cells coexist with spherical particles showing similar configuration (Fe(II) external coatings and [Al, Si, S]-rich cores). The Al:Si and Al:S ratios and the good Al-Si correlation in the cell interiors suggest the concurrent formation of two amorphous phases, namely a proto-aluminosilicate with imogolite-like composition and proto-hydrobasaluminite. In both cases, the mineralization appears to comprise two stages: a first stage of aluminosilicate and Al hydroxysulfate precipitation within the cell or around cellular exudates, and a second stage of SO42- and Fe(II) adsorption on surface sites existing on the mineral phases in the case of (SO42- ) or on presumed organic molecules [in the case of Fe(II)]. These microbially related solids could have been formed by permineralization and mineral replacement of senescent microbial cells. However, these features could also denote biomineralization by active bacterial cells as a detoxification mechanism, a possibility which should be further explored. We discuss the significance of the observed Al/microbe and Si/microbe interactions and the implications for clay mineral formation at low pH. PMID- 29322692 TI - Patient characteristics associated with treatment response in patients receiving salvianolate injection for stable angina. AB - OBJECTIVE: To explore patient characteristics associated with treatment response in patients receiving salvianolate injection for stable angina. METHODS: An analysis was conducted of data from a multicenter, phase IV clinical trial undertaken in China that enrolled 2150 patients hospitalized for stable angina from 50 hospitals. The treatment outcomes were changes of angina severity and nitroglycerin use between baseline and the last day of treatment. We used logistic regression models to explore patient characteristics associated with the treatment response. RESULTS: Patients who were overweight or obese (ORa 1.20, 95% CI 1.01 to 1.44), present with hypertension (ORa 1.23, 95% CI 1.01 to 1.49), experienced with 3 or more episodes of angina per week (ORa 1.77, 95% CI 1.44 to 2.17), or concomitantly using antiplatelet agents (ORa 1.44, 95% CI 1.17 to 1.78) were associated with better treatment response defined with the change of angina severity. Those of overweight or obesity (ORa 1.57, 95% CI 1.17 to 2.12) or concomitantly using calcium antagonists (ORa 2.38, 95% CI 1.39 to 4.08) fared better treatment response according to discontinuation or reduction of nitroglycerin use. CONCLUSIONS: Patients diagnosed with stable angina and receiving salvianolate injection might fare better treatment response if they were overweight or obese, experienced with hypertension, three or more episodes of angina per week, or concomitantly using antiplatelet agents and calcium antagonists. PMID- 29322691 TI - Raspberry Supplementation Improves Insulin Signaling and Promotes Brown-Like Adipocyte Development in White Adipose Tissue of Obese Mice. AB - SCOPE: Excessive lipid accumulation in white adipose tissue (WAT) leads to chronic inflammation and metabolic dysfunction. Raspberry (RB) contains high amount of polyphenols and dietary fibers. The objective of the study is to evaluate the effects of RB supplementation on WAT morphology, inflammation, and insulin signaling in high fat diet (HFD)-induced obese mice, and further explore the underlying mechanisms. METHODS AND RESULTS: C57BL/6J mice are fed with a control diet or a HFD supplemented with 0 or 5% freeze dried RB for 12 weeks. RB supplementation decreases WAT hypertrophy induced by HFD and suppresses pro inflammatory cytokines expression and macrophage infiltration in WAT. Meanwhile, RB addition improves insulin sensitivity of HFD-mice. Additionally, RB supplementation drives the browning of WAT (beige adipogenesis), which is associated with elevated PGC-1alpha and FNDC5/irisin contents. Consistently, the content of beige adipocyte markers including UCP1, PRDM16, Cytochrome C, Cidea, and Elvol3 is enhanced in HFD-mice, which are correlated with increased AMPK phosphorylation and Sirt1 protein contents. CONCLUSION: Dietary RB attenuated adipocyte hypertrophy and inflammation of WAT in HFD-mice and improves insulin sensitivity and beige adipogenesis, which is associated with increased FNDC5/irisin content and activation of AMPK/Sirt1 pathway. RB supplementation provides a promising strategy to prevent diet-induced obesity. PMID- 29322693 TI - See one, do one, teach one: Is it enough? No. PMID- 29322695 TI - Bioresorbable Scaffolds in Coronary Intervention: Unmet Needs and Evolution. AB - Bioresorbable scaffolds (BRS) represent a novel paradigm in the 40-year history of interventional cardiology. Restoration of cyclic pulsatility and physiologic vasomotion, adaptive vascular remodeling, plaque regression, and removal of the trigger for late adverse events are expected BRS benefits over current metallic drug-eluting stents. However, first-generation BRS devices have significant manufacturing limitations and rely on optimal implantation technique to avoid experiencing an excess of clinical events. There are currently at least 22 BRS devices in different stages of development, including many trials of device iterations with thinner (<150 MUm) struts than first-generation BRS. This article reviews the outcomes of commercially available and potentially upcoming BRS, focusing on the most recent stages of clinical development and future directions for each scaffold type. PMID- 29322696 TI - The J-curve between Diastolic Blood Pressure and Risk of All-cause and Cardiovascular Death. AB - BACKGROUND AND OBJECTIVES: The J-curve phenomenon between diastolic blood pressure (DBP) and mortality has been reported repeatedly in treated patients. However, the baseline risk of low DBP has not been fully explored. This study was to examine the relationship between DBP and risk of mortality from all-cause, atherosclerotic vascular diseases (ASCVD), and ischemic heart disease (IHD) using a prospective cohort of general population. METHODS: We analyzed 1,234,435 participants of the Korean Cancer Prevention Study cohort (789,255 men, 30-95 years of age) who had a medical evaluation from 1992 to 1995 using Cox proportional hazards models. RESULTS: A total of 22.5 million person-years were followed up (mean age 46.6 years, deaths 193,903 cases). The hazard ratios of mortality from all-cause and ASCVD, among those with DBP <60 mmHg compared to 70 79 mmHg were 1.23 (95% confidence interval [CI], 1.16-1.30) and 1.37 (95% CI, 1.20-1.57), respectively, after adjustment for multivariable including systolic blood pressure. Increased risks of all-cause death in the lowest DBP category group were maintained in men or women, 30-59 or >=60 years of age, smoker or non smoker and diabetes mellitus (DM) or non-DM subgroups. The risk in DBP 60-69 mmHg groups increased in several subgroups. However, the risk for ASCVD death in 30-59 years and DM group, and risk for IHD death in most subgroups except for elderly (>=60 years) decreased. CONCLUSION: A J-curve relationship between low DBP and all-cause death was found consistently. The baseline risk in the general population may be considered for risk assessment, particularly in case of interventions that lower DBP below 60 mmHg. PMID- 29322697 TI - J-curve Phenomenon Might Be Inherent: How to Know If It Is Treatment Induced? PMID- 29322698 TI - Timing and Indications for Aortic Valve Surgery in Korean Bicuspid Aortic Valve Patients. PMID- 29322699 TI - Contrast-induced Acute Kidney Injury and Inflammation. PMID- 29322700 TI - Factors Predicting Resistance to Intravenous Immunoglobulin and Coronary Complications in Kawasaki Disease: IVIG Resistance in Kawasaki Disease. PMID- 29322701 TI - Can Pre-analytical Mistake Bearing Irisin Concentrations Be an Indicator of Coronary Artery Disease? PMID- 29322702 TI - Factors Affecting Outcome and the Role of Plasmapheresis in Guillain-Barre Syndrome. PMID- 29322703 TI - Impact of Electrophysiological and Clinical Variants, and Timing of Plasmapheresis on Outcome of Guillain-Barre Syndrome. AB - Introduction: Guillain-Barre syndrome (GBS) is an autoimmune polyneuropathy causing acute flaccid paralysis and it is known to improve with plasmapheresis. Objective: To study effects of electrophysiological type of GBS, clinical variant of GBS and time taken for initiation of plasmapheresis on outcome of disease. Methods: 50 consecutive patients of GBS attending tertiary care hospital underwent clinical examination and electrophysiological studies. Disability grade was calculated and patients were observed for full functional recovery for 6 months. Results: In this study, patients in whom plasmapheresis was started within 7 days (n=39) were observed to have significantly better improvement in terms of smaller peak disability and rapid functional recovery compared to those in whom plasmapheresis was started after 7 days (n=11). (p<0.002). Demyelinating pattern on electrophysiology was observed to have better outcome in terms of all parameters compared to axonal. AIDP variant was observed to have best outcome and AMSAN variant was associated with worst outcome. Conclusions: Rapid institution of plasmapheresis is the most important outcome determining factor. Irrespective of the variant specific comorbidity, early plasmapheresis improves outcome in all parameters. PMID- 29322704 TI - Evaluation of Cerebral Venous Thrombosis by CT, MRI and MR Venography. AB - Objective: To study and compare cerebral parenchymal changes and sinuses involvement in CT with MRI and MRV in Cerebral Venous Thrombosis patients. Method: This study was carried out in the Department of Radiodiagnosis, JLN Hospital and Research Center, Bhilai, Chhattisgarh from October 2012 to Nov 2014 and includes fifty patients of all age groups presenting with clinical symptoms of CVT, admitted in Neurology, Neurosurgery, Medicine, Pediatric, obstetric and Gynecology wards. CT, MRI and MRV findings were noted and statistical analysis was done using SPSS (Statistical package for Social science) 17.0 software. Categorical variables are expressed as frequencies and percentages. Sensitivity, Specificity, PPV and NPV of CT were calculated with respect to MRI in the diagnosis of cerebral venous thrombosis and associated brain parenchymal changes. Result: Out of fifty cases of cerebral venous thrombosis, thirty-one were females and nineteen were males. Age range was newborn to seventy-one years with female predominance in young age. Majority of the patients presented with headache (78%) followed by seizures (32%). Out of the total 50 cases, superior sagittal sinus were involved in 24 cases, left transverse sinus in 22 cases, right transverse in 12 cases, left sigmoid in 20 cases, right sigmoid in 13 cases, left internal jugular vein in 12 cases, right internal jugular vein in 7cases, straight sinus in 5cases, superficial cortical veins in 6 cases, vein of Galen in 3 cases and internal cerebral veins in 2 cases. Cerebral parenchymal changes were associated with thrombosis in 26 patients, hemorrhagic infarct in 13 cases, only hemorrhage in 4 cases and only infarct in 5 cases. CT scan was able to diagnose sinus abnormality in 36% and parenchymal abnormality in 42% of cases as compare to 100% and 52% in MRI. Conclusion: In the emergency setting CT scan plays an important role in evaluating patients clinically suspected CVT, whereas MRI combine with MR Venography is the best imaging technique for diagnosis of CVT in patients with equivocal findings on CT. PMID- 29322705 TI - A Comparative Study of In-Hospital Outcome of Patients with ST-Segment Elevation Myocardial Infarction with and Without Diabetes Mellitus, after Thrombolytic Therapy; In Government Hospital of Rajkot, Gujarat, India. AB - Background: Diabetes mellitus is considered as a major health problem and an epidemic throughout the world. The mortality of patients with diabetes is almost twice that of non-diabetic. The outcome of in-hospital patients with myocardial infarction with and without diabetes after thrombolytic therapy is presented here. Aim: To compare the outcome of patients with myocardial infarction after thrombolysis in diabetics and non-diabetics in government hospital of Rajkot, India. Methods: A retrospective, observational study was carried out between the period of March-2014 to April-2015. Patients who presented with acute myocardial infarction having ST-elevation as MI picture, were admitted to the emergency room of medicine department. All these patients were treated with streptokinase as a thrombolytic agent. Baseline ECG was taken on admission and the one after 60 minutes of thrombolysis. The study group involved two types: (i) diabetic (ii) nondiabetics. Results: A total of 395 patients were included in the study. Out of them around 104 were females and 291 were males. ST-segment resolution in non diabetic patients was found in 180 patients out of 186 and in diabetics it was found in 174 patients out of 208. Complications related to post fibrinolytic therapy was more prevalent in diabetics 148 patients (71.15%) as compared to those in non-diabetics 47 patients (25.26%). Mortality was observed only with diabetics (23.52%) as compared to no mortality in non-diabetics. Conclusion: Overall, morbidity and mortality of diabetic patients with Acute Myocardial Infarction was found to be greater as compared to non-diabetics; post thrombolysis. PMID- 29322706 TI - Osteoporosis in Postmenopausal Females with Primary Knee Osteoarthritis in a Vitamin D Deficient Population. AB - Aim and Objective: To find prevalence of osteoporosis (OP) in postmenopausal females with primary knee osteoarthritis (OA) in India, where there is widespread Vitamin D deficiency (VDD). Material and Methods: 75 postmenopausal women (PMW) fulfilling ACR criteria for Knee OA between 40 - 60 years of age, having OA grade 2 or more as per Kellgren Lawrence grade on anterior- posterior radiograph of the right knee were enrolled. 34 PMW of the same age with normal right knee radiograph were taken as controls. Bone mineral density (BMD) of lumber spine (L1 L4), total hip and left forearm was performed using DXA in all patients and controls. The results were expressed in absolute values (g/cm2) and as per WHO criteria - Osteoporosis: T score < -2.5, Osteopenia: T score between -1 and -2.5. Vitamin D Level was done by ELISA. Results: Body mass index (BMI) of patients was significantly higher than controls (p 0.006). There was no difference in BMD between patients and controls at any site. Forty percent patients and 53% controls had osteopenia (p ns), while 34.6% patients and 41.1% controls had osteoporosis at any site (p ns). When this comparison was made at each site there was no difference between patients and controls. Conclusion: Prevalence of osteoporosis in PMW with primary knee OA is similar to that in general population. PMID- 29322707 TI - Knowledge, Attitudes, Beliefs and Practices of Physicians Regarding Idiopathic Pulmonary Fibrosis and the Impact of a Continuing Medical Education Program. AB - Background: Significant deficiencies have been identified previously in the knowledge of physicians regarding the current diagnosis and management of idiopathic pulmonary fibrosis (IPF). Whether a continuing medical education (CME) program helps in overcoming these deficiencies has never been studied. Methods: This was a questionnaire-based study performed to assess the knowledge, attitudes, beliefs and practices of physicians regarding IPF before and after attending a CME program at a tertiary care teaching Institute in northern India. A questionnaire comprising of 18 questions on knowledge, attitudes, beliefs and practices regarding IPF (designed by Delphi method) was self-administered by the participants prior to (pretest) and after (posttest) attending the program. The pretest and posttest knowledge and belief scores (maximum achievable score 17) were compared. Results: Of the total 98 physicians who agreed to participate, 84 completed the pretest questionnaire. The mean (SD) total score for knowledge and beliefs questionnaire was 10.7 (3.5). The mean (SD) pretest and posttest scores of 52 subjects, who completed both the questionnaires were 10.3 (3.4) and 11.1 (2.9) respectively with a mean increase of 0.8 (p=0.048). The proportion of participants who scored >50% increased (p=0.046) from 41 (78.8%) to 48 (92.3%) between the pretest and posttest questionnaires. Only 54.8% and 47.6% of the participants responded correctly to the questions on CT features and drugs useful for IPF, respectively. Conclusions: Significant deficiencies were noted in the knowledge of IPF among a small group of physicians attending a CME. A CME program with didactic lectures helps improving the knowledge only marginally. PMID- 29322708 TI - High Prevalence of Obstructive Sleep Apnea among People with Type 2 Diabetes Mellitus in a Tertiary Care Center. AB - Purpose: Untreated obstructive sleep apnea (OSA) is a risk factor for hypertension and cardiac events, and is associated with increased mortality. Recent studies indicate that majority of people with type 2 diabetes also has OSA. The aim of this study was to assess the prevalence and severity of OSA and risk factors contributing to it among people with chronic and severe type 2 diabetes. Methods: A total of 203 people with type 2 diabetes (mean age: 54+/-8 years, 145 males, 58 females, HbA1c >=7% [53mmol/mol]) attending a diabetes specialty hospital were included in the study; all were subjected to comprehensive diabetic evaluation and Apnea Hypopnea Index (AHI) was used to evaluate OSA. Results: 23.65% of the study subjects had OSA (AHI >=15). OSA was more prevalent among men compared to women. BMI, was significantly higher among subjects with OSA (P=0.01). People with OSA had higher percentage of diabetic complications such as cardiovascular disease (CVD), retinopathy and neuropathy. Hypertension was identified as independent predictors of OSA. Conclusions: Prevalence of OSA was higher in this study compared to Indian studies hitherto. Since OSA is treatable, people with diabetes should be screened for this condition to reduce their CVD risk. PMID- 29322709 TI - Study of Association of Thyroid Hormone in Pre-Eclampsia and Normal Pregnancy. AB - Aim: The aim of the study was to assess association of thyroid hormone in preeclampsia and normal pregnancy. Material and Method: This was a hospital based observational case control study. Total 100 women were included, out of them 50 normal pregnant women in control group and 50 pre-eclamptic women in case group were included. Result: In this study no significant difference was found in FT3 (p value 0.085) and FT4 (p value 0.065) in control and case group. TSH and Anti TPO levels in control and case group were statistically significant (p value <0.001 and <0.000). Conclusion: We observed that thyroid hormones (TSH and Anti TPO) have statistically significant relation in pre-eclamptic women. PMID- 29322710 TI - Etiology and Outcomes of Lower Limb Ulcers in Non-Diabetic Patients, An Experience from Government Hospital in Western India. AB - Aim: To study the Etiology and Outcomes of Lower Extremity Ulcer in Non- Diabetic Patients. Method: A total number of 40 patients were collected from Rheumatology services (Department of Medicine), Venous Clinic (Department of Surgery) and Dermatology Clinic (Department of Dermatology) of a tertiary care hospital in Mumbai over a period of 48 months from January 2013 to December 2016. The study included serial recruitment of lower limb ulcer fulfilling inclusion criteria. Results: Patients with lower limb ulcers presented with a wide range of pathology. Ulcers due to Vasculitis was the most common etiology (40%) and affected females predominantly (12/16). Venous ulcers were the second most common etiology and predominantly affected men (8/10). Conclusion: It is important to consider differential diagnosis of Vasculitic ulcer in chronic non healing ulcers as they show rapid response to treatment with immunosuppressant. If such ulcers are not promptly diagnosed and treated properly, systemic vasculitis can cause end organ damage or even endanger patient life. PMID- 29322711 TI - High Prevalence of Hypovitaminosis D in Patients Presenting with Proximal Muscle Weakness: A Sub-Himalayan Study. AB - Background: Hypovitaminosis D has emerged as a major public health problem and 25 50% of patients encountered in clinical practice are deficient in vitamin D. This study was conducted to estimate the prevalence of hypovitaminosis D among patients presenting with proximal muscle weakness. Study Design: It was a cross sectional study done on patients >=18 years presenting in outdoor clinic from May 2008 to April 2013, with difficulty in standing and going up stairs/ diffuse musculoskeletal pains. Proximal muscle weakness due to other causes were excluded through investigations and those taking steroids and/or indigenous drugs were also excluded. Vitamin D levels measured by radioimmunoassay (RIA) in all eligible patients and individuals included in the study were those with hypovitaminosis D (<30ng/dl) and proximal muscle weakness. Patients reassessed after supplementation with vitamin D at 2 and 6 months. Results: 99 patients with hypovitaminosis D associated proximal myopathy included in study. Of these 55 (55.55%) were males and 44 (44.44%) were females. Age ranged from 22 to 82 years with a mean of 52.84 +/- 12.6 years. Of 99 patients, 55 (55.55%) were from the rural area and 44 (44.44%) from urban area. Mean duration of symptoms was 22.7 months (range 6-60 months). The level of 25(OH) Vitamin D ranged from 2.0 ng/dl to 35.7 ng/dl with the mean level of 13.18 +/- 5.80 ng/dl (males = 12.76+/- 4.85ng/dl and females = 13.60+/-6.70ng/dl). Hypovitaminosis D was present in 98.98%. A direct relationship was found between the vitamin D levels (<10 ng/dl) and severity of weakness. Of 83 patients, who reported at the end of two and six months of treatment, 71 (85.54%) patients were able to stand-up from squatting position. Conclusion: Muscle weakness is common among vitamin-D deficient individuals. Our study indicates that more focus should be on muscle symptoms in at risk population groups. The vitamin D deficiency related myopathy should not be missed due to its potential reversibility with vitamin D supplementation. PMID- 29322712 TI - A Cross-sectional Study of Cardiovascular Involvement in Systemic Lupus Erythematosus in an Urban Indian Tertiary Care Centre with Emphasis on 2-D Echocardiography. AB - Background: Cardiovascular manifestations are responsible for considerable morbidity and mortality in patients with SLE. A wide range of manifestations due to active lupus, like pericarditis, valvular affection, myocarditis, and less commonly pulmonary hypertension, are described. This study was undertaken to study cardiovascular manifestations in SLE, with a focus on echocardiography findings, in an urban Indian setting. Methodology: Fifty consecutive cases of SLE following up in the Rheumatology Clinic of TNMC and BYL Nair Charitable hospital, an Indian tertiary care hospital were studied. They were subjected to an echocardiographic examination if not already done. Detailed history, examination, study of past medical records and investigations were carried out, especially related to cardiovascular system. Treatment details, flares, other systemic involvement were noted. Serial echocardiography if done previously were noted down. The data was analysed using descriptive statistics. Results: An echocardiographic abnormality was noted in 25 (50%) of the 50 subjects. Pulmonary hypertension in 21(42%); valvular abnormalities in 16 (32 %); pericardial effusion in 9 (18%) and diastolic dysfunction in 6(12%) were the echocardiography findings. Six out of the 7 cases with moderately to severe pulmonary hypertension seemed to be responding to immunosuppressive therapy clinically as well as on echocardiography; 1 did not respond. At least 1 traditional risk factor for atherosclerosis was present in 58% of cases. Conclusions: Screening echocardiography may be recommended, especially at presentation, during SLE flare, or in the presence of cardiac symptoms. Moderate to severe pulmonary hypertension can develop any time in the course of the disease. It may be responsive to immunosuppression. Further detailed studies including multiple echocardiographic parameters and right heart catheterisation need to be undertaken to study the responsiveness of pulmonary hypertension to immunosuppresssive therapy. PMID- 29322713 TI - Communication Adaptations for a Diverse International Patient Population. AB - We live in an age of hyper connectivity, people from around the world are looking outside their own national borders to receive medical care. As more people are learning about the quality that the elite Indian hospitals provide at a competitive, and often more affordable, price compared to other institutions around the world, they are becoming increasingly interested in receiving their medical care in Indian hospitals. It is for this exact reason that it is very important to learn the importance of communicating effectively with people from a diverse background. Over the next decade, the number of international patients that Indian hospitals will provide care for is set to dramatically increase. In this new age of medicine in India, it is imperative that doctors are adequately equipped with the communication skills to appropriately connect with patients coming from very different cultural backgrounds. The interaction with an international patient can be tremendously deepened through effective communication that adheres to the cultural beliefs of the patient. In this article, we detail how to effectively communicate with people from different backgrounds. We explore how to speak with patients and connect on a deeper level and respect the cultural differences that exist. We will also discuss how to avoid offending your patients or miscommunicating your plans to them. Overall, improved awareness of cultural differences will ensure higher patient satisfaction as well as an improved doctor patient interaction. PMID- 29322714 TI - Novel Regimens in the Treatment of Paracetamol (Acetaminophen) Poisoning. PMID- 29322715 TI - Heart Failure and the Iron Deficiency. AB - Iron deficiency anemia is a significant problem worldwide and more so in developing countries, like India. The prevention and treatment of iron deficiency is a major public health goal in India It is now well recognized that iron deficiency has detrimental effects in patients with coronary artery disease, heart failure, and pulmonary hypertension, and possibly in patients undergoing cardiac surgery. Around one-third of all patients with HF, and around one-half of patients with pulmonary hypertension, are affected by iron deficiency.1. PMID- 29322716 TI - Common Statistical Errors and how to Avoid them. PMID- 29322717 TI - Giant Intraparanchymal Neurocysticercosis. PMID- 29322718 TI - Crochetage Sign. PMID- 29322719 TI - Life-threatening Medical Complications Due to Ovarian Hyperstimulation Syndrome: A Hidden Etiology. AB - Ovarian hyperstimulation syndrome is usually an iatrogenic complication in women taking ovulation induction medications during assisted reproduction. We hereby report the case of a 25 years old female who presented with hypertension, polyserositis with tense ascites and large cystic ovaries. She developed sigmoid and transverse sinus thrombosis. She had undergone a clandestine ovulation induction therapy as a commercial ovum donor. She fitted in severe category of ovarian hyperstimulation syndrome. PMID- 29322720 TI - Invasive Aspergillus Pseudomembranous and Obstructive Tracheo-bronchitis in an Immuno-competent Patient. AB - A 19 year female, presented with life threatening haemoptysis and cough with minimum expectoration for 3 months. Bronchoscopy showed multiple nodules in airway. The direct microscopy and culture of sputum revealed fungal elements and Aspergillus flavus respectively. Serum Galactomannan was positive. Thus diagnosis of invasive aspergillus tracheo-bronchitis made. She responded to voriconazole. Aspergillus tracheo-bronchitis is a rare form of invasive pulmonary aspergillosis in immuno-competent host. Aspergillus spp in respiratory samples should not be routinely discarded as colonization. PMID- 29322721 TI - Mandibular AV Malformation: A Rare Cause of Massive Bleeding from Mouth Managed with Multiple Vessel Embolization. AB - An arteriovenous malformation (AVM) is a site of abnormal connectivity between arteries and veins. Arteriovenous malformations of jaw are extremely rare conditions that can result in disastrous complications, if handled carelessly. Although various treatment modalities have been advocated in the literature, there seems to be no complete consensus on a suitable treatment in these cases. We describe a case of mandibular AVM, who presented with massive bleeding from mouth and each time, embolization of one vessel was done, it recruited new vessel. PMID- 29322722 TI - Unusual Presentation of Injection Site Adverse Effect. AB - Insulin is an integral part of Type 1 diabetes management. Patient education is of utmost importance to ensure proper injection technique for getting appropriate glycaemic control and to avoid injection site adverse effects. Commonest injection site adverse effect is lipodystrophy.1 We present a case where incorrect injection technique led to an unusual presentation of injection site adverse effect, which is resolving after correction of the injection technique. PMID- 29322724 TI - Medical Symbols: Part-1. PMID- 29322723 TI - Thyrotoxic Channelopathies. AB - Thyrotoxic periodic paralysis (TPP), a disorder most commonly seen in Asian men, is characterized by abrupt onset of hypokalemia and paralysis. The condition primarily affects the lower extremities and is secondary to thyrotoxicosis. Early recognition of TPP is vital to initiating appropriate treatment and to avoiding the risk of rebound hyperkalemia that may occur if high-dose potassium replacement is given. Here we present a case of 31 year old male with thyrotoxic periodic paralysis with diagnostic and therapeutic approach. PMID- 29322725 TI - Painless Krait Bite in a Sleeping Victim: Delayed Diagnosis and High Mortality. PMID- 29322726 TI - Thrombocytopenia as Harbinger of Graves' Disease: A Rare Presentation. PMID- 29322727 TI - [Demographic Aspects of Population Aging in Saint-Petersburg at the End of XX-the beginning of XXI Century. Part II. Prospective Aging Measures.] AB - The paper is the second part of the series of two articles on demographic aspects of population aging in Saint-Petersburg in 1990-2010/2014 compared to the situation in the Russian Federation as a whole. In the first part, the situation with population aging in Saint-Petersburg and Russia was considered based on traditional aging measures. In the second part, a number of prospective aging measures that take account of remaining life expectancy are studied, such as Prop. RLE 15 (proportion of population with remaining life expectancy 15 years or less), POADR (prospective old-age dependency ratio), population average remaining years of life (PARIL). Prospective aging indicators are compared with their traditional analogues. Gender imbalance of prospective aging measures has been considered. PMID- 29322728 TI - [Population aging in Kazakhstan. 2. Public policy responses.] AB - This article consists of the concluding sections of the review devoted to the issues of population aging in the Republic of Kazakhstan. The presented material is intended to substantiate strategic approaches for addressing the evolving process of population aging in Kazakhstan. PMID- 29322729 TI - [Age-related changes in the content of serine-arginine protein kinase 1 (SRPK1) in human dermis.] AB - The aim of our work was to examine content of serine-arginine protein kinase 1 (SRPK1) in human dermis at different ages (from 20 weeks of pregnancy to 85 years old). SRPK1, proliferating cells nuclear antigen (PCNA ), endothelial marker CD31 were detected in sections of the skin by indirect immunohistochemistry. Results showed, that content of SRPK1 in dermal fibroblasts was increased form antenatal period to 20 years of life followed by a decrease until 61-85 years period. SRPK1 content in dermal blood vessels is slowly gradually increased from antenatal period to 61-85 age interval. The number of fibroblasts and their proliferative activity, the number of CD31 positive blood vessels in dermis were decreased from antenatal period to 61-85 years period of life. Age-dependent decrease in SRPK1 in dermal fibroblasts from 20 years is associated with a reduction in the number and proliferative activity of fibroblasts. Age-related increase in SRPK1 content in dermal blood vessels is associated with a diminishing of the number of blood vessels. Hence, it can be supposed that SRPK1 has different actions on proliferation of differ components of dermis during aging. PMID- 29322730 TI - [Age-related changes of water transport by corneal endothelial cells in rats.] AB - Senescence-associated alterations in structure and function of cornea make it more sensitive to traumas and disease. Trauma of cornea leads to edema and vision impairment and only corneal transplantation remains the effective for vision correction. Role of aquaporins for cornea endothelium function, as well as age related changes of their activity, are not entirely understood. Herein, we studied changes with age the water permeability (Pf) of the plasma membranes of the corneal endothelial cells and the level of expression in them of the mRNA genes of the water channels of the aquaporins AQP1 and AQP3 in Wistar and senescence-accelerated OXYS rats. From the age of 3 to 18 months, Pf in Wistar rats increased, in OXYS - decreased and was twice lower than in Wistar rats. The expression of aqp1 mRNA (studied by RT-PCR) in the endothelium was the same in Wistar and OXYS rats at the age of 3 months. By the age of 18 months, it increased only in Wistar rats and became twice higher than in OXYS rats. The expression of aqp3 mRNA in the endothelium of 3-month-old OXYS rats was half that of Wistar rats and did not change with age, while in Wistar rats it decreased and at 18 months was 4 times lower than in 3 months. We supposed that increased water permeability of endothelial cells in Wistar rats is adaptive and compensates for the decrease in endothelial cell density with age, while the accelerated aging of OXYS rats abolishes this compensation. PMID- 29322731 TI - [Age changes in connective tissue structures of the stomach.] AB - The study of paravasal connective tissue of the stomach was carried out on the preparations of 80 men corpses of three age groups: the first period of adulthood (n=20), the elderly (n=30) and senile (n=30) ages. With the help of standard histological and histochemical methods, the features of the age-related variability of the fiber composition were established; the level of apoptosis and proliferation in fibroblasts has been investigated with the help of immunohistochemical methods. The regularities of the structural organization of the paravasal connective tissue of the stomach during the period of biological stability (the first period of adulthood), as well as its age transformations at the stages of postnatal ontogeny (in the older age groups), were revealed. PMID- 29322732 TI - [Functional cumulation of influence of vascular peptide bioregulator on microcirculation in the brain cortex of spontaneously hypertensive rats.] AB - We investigated the influence of vascular peptide bioregulator on microcirculation in the brain cortex of spontaneously hypertensive rats of different ages and figured out whether there is functional cumulation during two time application of the drug "Slavinorm" by above-mentioned animals. It was shown that a single course treatment with vascular peptide bioregulator had increased the density of microvascular network of the pia mater in young animals ca. 1,2 fold and had not affected the perfusion and oxygen saturation of sensorimotor cortex. The second course treatment with "Slavinorm" was provided in a 6 months. Functional cumulation was revealed in 12 month-aged rats which had 2 course treatments with vascular peptide bioregulation: the density of microvascular network of the pia mater was increased ca. 1,6-fold; level of perfusion was increased ca. 15% in comparison with intact animals of the same age. These animals were more tolerant to cerebral vasospasm (the application of vasoconstrictor on the surface of the brain): the highest level of tissue oxygen saturation was remained at fairly constant perfusion in comparison with other animals. PMID- 29322733 TI - [Blue death of nematodes.] AB - This paper shows that the aging and death of nematodes, accompanied by the ignition of a blue glow under fluorescent microscopy, are not directly linked to any lipofuscin (aging pigment), nor with the anthranilic acid (a product of degradation of tryptophan residues of proteins). The main contribution in the blue flash of the dying nematodes belongs to parasitic light, scattered on the cuticle and bodies of the worm. The main contribution in the blue region at spectrofluorometry of homogenates, obtained from nematodes, really gives anthranilic acid. However, the content of anthranilic acid, measured by spectrofluorimetry, in adult nematodes is lower than that in the young ones. Artificial aging of nematodes by moderate heating revealed no accumulation of anthranilate and no loss of tryptophan, from which it must be formed. Thus, it is hardly lipofuscin or anthranilic acid. The cause of aging and death of nematodes is the formation of strong cross-links between proteins. This is supported by data on tryptophan fluorescence and light scattering of homogenates: the old worms show a large number of denaturated proteins and large protein particles with a strong cross-links, which are not destroyed be detergent. PMID- 29322734 TI - [The geriatric status in patients with the breast cancer in the conditions of comorbidity.] AB - The article represents the results of a comparative analysis of the geriatric status, the Charlson comorbidity index and the geriatric variant of the cumulative illness rating scale for geriatrics (CIRS-G) in patients of different age groups with breast cancer, considering the concomitant pathology (CHF). It was revealed that the age classification of the WHO is more valid in determining the somatic and geriatric status of women with breast cancer. Also the evaluation of the severity of geriatric syndromes is given. It was revealed that the malnutrition syndrome and cognitive impairment syndrome are more expressed in people of middle age and elderly with breast cancer As well the importance of detecting both frailty and comorbidity is determined with the aim of increasing the accuracy of prediction of adverse events of treatment. PMID- 29322735 TI - [Age specific recurrent cancer disability of adult population in the Belgorod region in dynamics in 2000-2015.] AB - In the Belgorod region for 16 years of observation (2000-2015) number of persons who are annually recognized as recurrently disabled due to cancer increased by 113,4 %. Their specific weight increased from 6,9 up to 24,2 % and its average annual rate is 11,3%+/-5,9 of total number of recurrently disabled persons. In 2015 cancer as a reason of recurrent disability was on the 2d ranking place after cardiovascular system diseases. Cohort of persons recognized as recurrently disabled due to cancer include mainly persons of average (46,4%+/-9,9) and pension (27,7%+/-19,7) age, persons with disability groups II and III (37,2%+/ 4,3 and 50,8%+/-4,1 respectively). With increasing age the degree of the recurrently granted disability group gets heavier. Specified negative dynamisc of levels, structure and trends of recurrent cancer disability of adult population shows the importance and great medical and social as well as economical significance of the problem. PMID- 29322736 TI - [Effect of combined application of ozone therapy and gravitational therapy on the remote results of complex treatment of geriatric patients]. AB - Skin aging is one of the topical issues in modern gerontocosmetology. Application of cosmetic products with short peptides is a promising measure for retardation of skin aging. This research is aimed at investigation of KE (Lys-Glu, Vilon) dipeptide influence on the expression of markers of aging in human skin fibroblasts in vitro. Collagen type I and sirtuin-6 expression in "young" and "old" skin cell fibroblasts cultures was studied using immunofluorescence confocal microscopy method. The areas of expression of collagen type I and sirtuin-6 are known to decrease in skin fibroblasts with aging by 3,5 and 3,6 times accordingly. KE dipeptide increases collagen type I expression area in "old" skin fibroblasts cultures by 83%. KE dipeptide increases expression area of sirtuin-6 in "young" and "old" skin fibroblasts cultures by 1,6 and 2,6 times correspondingly. Thus, KE dipeptide promotes functional activity of skin fibroblasts and inhibits their aging. PMID- 29322737 TI - Pulmonary embolism in the hospitalized patients 65+ in relation to presence of diabetes in 2007-2015. AB - : The aim was to compare an occurrence of acute PE in hospitalized patients 65+ years old with diabetes mellitus (DM) with those without any DM. It was a retrospective analysis of data collected in documentation of patients who were hospitalized at the geriatric department in the years 2007-2015. In this period we had 11 947 patients of an average age of 79,9+/-8,5 years (min - 65, max - 103 years). Out of this number there were 4 069 diabetics. Acute PE was found in 344 patients of an average age 80,3+/-7,4 years. 121 of them died (35,3%) and 223 survived (64,7%). From total patients 88 were diabetics with PE. Mortality on PE did not influence the presence of DM. She was the same in both groups of patients (p=NS) - with and without DM. RESULTS: Prevalence PE in the hospitalized 65+ years old was 2,9%. Mortality of PE among all the hospitalized 65+ was 1,0%. Higher prevalence of PE was found in non-diabetics - 3,2%, as compared to the diabetics - 2,3% (p<0,025). The average age of patients with diabetes both with and without PE was lower as compared to the non-diabetics (p<0,01). Among risk factors we found significantly more frequently obesity in the diabetics as compared to the non-diabetics both surviving (p<0,001) and those who died (p<0,05). The most important risk factor of PE was in all the patient's immobility. One risk factor appeared in the set of survivors more frequently in the non-diabetics as compared to the diabetics (p<0,05). Simultaneous occurrence of three risk factors appeared more frequently in the surviving diabetics (p<0,001) as compared to the non-diabetics. Although overall presence of risk factors was higher in the diabetics, PE prevalence in the DM patients was lower as compared to the non-diabetics. The immobility in general was the most important risk factor for PE occurrence, in the diabetics then also obesity. PMID- 29322738 TI - [Longterm survival of elderly patients after myocardial infarction depending on management in the acute period of the disease.] AB - The paper presents the results of study 5-year survival of elderly patient after acute myocardial infarction. It is shown that this category of patients, used less invasive diagnostic and treatment strategy, compared with younger. In our study the effectiveness of primary percutaneous coronary intervention confirmed in patients with myocardial infarction with ST-segment elevation (STEMI) in relation to long-term survival. However, between the groups of successful thrombolytic therapy and pharmacoinvasive treatment strategy, no significant differences have been identified. This fact and the conflicting data of modern researches in this area confirm that the choice of treatment strategy of acute myocardial infarction in the elderly is challenging and requires an individual approach. PMID- 29322739 TI - [Bone quality of lower limbs in patients with chronic osteomyelitis aged over 60 years according to multi-slice computed tomography.] AB - Radiography and multi-slice computed tomography (MSCT) were used to examine 30 patients with chronic osteomyelitis of lower limb whose age was over 60 years. There were more male patients with posttraumatic osteomyelitis of tibia. 16 patients were treated for chronic osteomyelitis for more than 5 years and 9 patients for more than 15 years. Control groups included 30 patients with chronic osteomyelitis of long bone aged 20 to 45 years and 30 patients aged 46 to 59 years. Radiographs of 19 patients of index group (63,3%) showed osteomyelitic cavities in the femur and tibia. Radiomorphological changes were observed in the adjacent segment of all the patients. Changes in bone architechtonics were manifested in expressed polymorphism, without evident signs of osteoporosis due to the spread sclerosis in osteomyelitic nidus. Information obtained with MSCT preoperatively was comprehensive and revealed location of purulent and necrotic nidus, type of destruction, extent and location of involved bone tissue that provided a possibility of choice of the most efficient surgical intervention. PMID- 29322740 TI - [Hip arthroplasty as a chance to improve quality of life in eldery group of patients.] AB - Hip arthroplasty outcomes for "difficult" eldery group of patient, aged 75-89 years, with femoral neck pseudarthrosis were analyzed. All patients were divided into 3 groups depending on the type of treatment (surgical or conservative) and terms of the removal of previously implanted metal constructions (before or during surgical procedure). Good and satisfactory results by Harris hip score were achieved in 94,8% of observations. The reasons of postoperative complications were considered for every group of patients. PMID- 29322741 TI - [Age peculiar by endonasal homeostasis in humans.] AB - The state of protective functions of the nasal cavity determines its homeostasis. At the stages of postnatal development and involution of functional parameters by endonasal homeostasis undergo a number of specific changes, the study of which has not only scientific value but also practical value for experimental physiology and clinical medicine. The article presents data on the age dynamics of functional indicators by endonasal homeostasis of human as buffer properties and morphological features of nasal secret. These indicators are examined at the stages of postnatal development in a comparative perspective based on the study of the age gradients and the position of the doctrine of entropy. PMID- 29322742 TI - [The functional state of nasal cavity in the aspect of structural-functional changes of the human organism in postnatal ontogenesis.] AB - Nasal cavity - "the primary line of defense" and a major division of the respiratory tract. A variety of functional areas and regions, structural formations of the nasal cavity allows, at the present stage of development of biology and medicine, consider it as a complex functional subsystem in the structure of the respiratory system. The age transformations of morphological and functional parameters of the nasal cavity are polymorphic and specific. An important aspect of developmental physiology of the respiratory system is a study of the relationship of these changes with morphological and functional transformations of other systems of the body. The article presents the results of the analysis of such contingency-for example, by endonasal correlations with amount of blood flow hemodynamics and functional state of the autonomic nervous system, respiratory function of the nasal cavity and respiratory system, as well as other functions of the nasal cavity and their relationship with general growth processes, critical periods of development and involution. In the process of this analysis revealed a close correlation with complex changes of the morphofunctional parameters of the systems of the human body, most pronounced during in critical periods of postnatal ontogenesis. PMID- 29322743 TI - [Studies of the dc-potential of the brain level distribution in elderly women with high anxiety.] AB - The article presents the results of studies of the direct current (DC) potential of the brain level distribution in elderly women with high anxiety. Analysis of the DC-potential of the brain level distribution was held by mapping obtained by measuring the monopolar values of the DC-potential of the brain and calculating deviations in each of the leads from the average records which were registrated in all areas of the head. The results of the study indicate an increase in the background level of the DC-potential in most parts of the brain and the peculiarity of its distribution in elderly women with a high level of anxiety. A tendency to deformation of interhemispheric asymmetry with a predominance of energy costs in the central region of the right hemisphere and a smoothing of interhemispheric asymmetry in the temporal and parietal regions have been revealed. The obtained data allow to assume the influence of high anxiety on the change in energy metabolism of the brain in the ederly. PMID- 29322744 TI - [The compliance of elderly women being at the social institution.] AB - The aim of the work is to analyze the prevalence and severity of the psychological characteristics of the compliance of elderly women being at the social institution in comparison with the same age group living in the family and receiving support from relatives. The experimental group of the research consisted of 27 women at the age of 70-79 years being at the social institution, named Regional State Autonomous Institution Social Welfare "Sedankinsky nursing house for the disabled and aged people" of Vladivostok, from 6 to 12 months. As well as the comparative group included 27 women at the age of 72-79 years, who became widowed and lived in families. The following psychodiagnostic techniques were used in the research: Questionnaire "The level of compliance", the technique of diagnostics of psychological well-being of the individual, Hospital Anxiety and Depression Scale (HADS). The results of this study showed that the low level of general, emotional, behavioral and social compliance dominated in the group of the elderly women, who lived in the nursing house, in comparison with the group of the elderly women living in families. Besides, the level of psychological well being is below normal combined with a raised level of depression. In the group living in favorable social conditions, viz. in families, the level of general compliance is average. Furthermore, the level of psychological well-being is characterized as one with better focus on building emotionally close relations combined with a sense of meaningfulness of life. The level of depression in the comparative group is significantly lower, than in the experimental group. The achieved characteristics show the necessity of increasing a compliance level of the patients living in the social institutions by carrying out a set of measures to optimize the conditions and quality of physician-patient interaction. Moreover, it is important not only to teach them to take medicine systematically, but also to take an active deliberate position on their own health care. PMID- 29322745 TI - [Peculiarities of clinical and psychophysiological status of elderly patients with osteochondrosis.] AB - We conducted a study of 220 patients in polyclinic No 91 in St. Petersburg. It was revealed that elderly patients with osteochondrosis are characterized by a high prevalence and severity of osteochondrosis against the background of metabolic disorders in the structures of the spine. At the same time, the actual condition of the spine does not always determine the severity of the pain syndrome. The effect of osteochondrosis on the development of comorbid pathology has been clarified. The ways of correction of the clinical and psychophysiological status of elderly patients with osteochondrosis such as appointment of Cytoflavin, behavioral therapy and biofeed back therapy are suggested. PMID- 29322746 TI - [Correction of anxiety-depressive disorders in Parkinson's Disease.] AB - In the formation of a common age-associated pathological process in patients with Parkinson's disease along with movement disorders so-called "non-motorized" clinical symptoms (including anxiety and depression) play an important role. These pathological manifestations can reduce the quality of life of the patient and require specific therapeutic measures. The picker is the use of drugs - antidepressants. The article discusses the opportunity for the effective and safe use of such drug - sertraline combined with basic therapy, which is widely used in Parkinson's disease. Distinct positive results were obtained in the process of using the proposed scheme of treatment in 35 patients at the age of 62,3+/-3,6 years and with disease duration of 3,9+/-2,6 years. We observed decrease depressive symptoms, improve sleep, decrease anxiety levels while improving the quality of life of patients. No unwanted side effects of the treatment were observed. The possibility to use of sertraline for the relief of anxiety and depressive disorders in the elderly suffering from Parkinson's disease was shown. PMID- 29322747 TI - [Psychophysiological monitoring of women teachers at the turn of the body of middle and old age.] AB - Objective - to create and hold psychophysiological monitoring elderly organism female teachers in the school year dynamics. The study was conducted with the participation of 30 female teachers aged 60-61 years at the beginning of the year (background level) and 5, and 9 months of teaching in the school. We studied 5 minute recording portions of the electrocardiogram using a program "Poly-Spectrum Rhythm" (the limited liability company "Neurosoft"); lung function - using the apparatus "Spirosoft-5000"; psycho-emotional state of teachers in the dynamics of the school year - on the method of SUN (state of health, activity, mood). By the end of the school year biased increased sympathetic influence of the autonomic nervous system on the body of teachers that have been associated with some violation of the rhythmic activity of the heart on the background of destabilization of sinus rhythm and vegetative balance of the organism; indicators of forced expiratory volume in the first second the teachers were not significantly below baseline values, indicating a decline in the functional reserves of the respiratory system; there has been a strong tendency to deterioration of mental and emotional state of women teachers elderly. Consequently, the dynamics of the school year it is advisable to monitor the activities of the body of female teachers the elderly with a view to the possible prevention of various diseases and abnormalities in health status. PMID- 29322748 TI - [Features of the new minimally invasive techniques facet fixation system "Facet Wedge" in the treatment of degenerative diseases of the lumbar spine in elderly patients.] AB - The aim of the study was a comparative analysis of the clinical and radiographic effectiveness of the use of interbody fusion and open pedicle screw stabilization of simultaneous and new minimally invasive techniques facet fixation system "Facet Wedge" in the treatment of degenerative diseases of the lumbar spine in elderly patients. The study included 39 elderly patients (older than 60), which carries out the transforaminal interbody fusion Cage "T-pal": open transpedicaular stabilization was used in 1st group (n=23), ipsilateral open transpedicular stabilization with contralateral transfaset installing titanium Cage "facet Wedge" -in 2nd group (n=16). We used intraoperative interventions and specific post-operative patient management, clinical data and radiographic outcomes for a comparative analysis of the parameters. Dynamic assessment was made in a period of 8 to 36 months after surgery (median 24 mo.). As a result, it found that the use of the system "facet Wedge" allows you to achieve the best clinical outcomes and fewer postoperative complications compared with open transpedicular stabilization in similar radiographic findings of bone block formation. Low traumatic facet fixation makes it possible to use methods for the treatment of elderly patients with degenerative diseases of the lumbosacral spine. PMID- 29322749 TI - Time-reversed ultrasonically encoded optical focusing through highly scattering ex vivo human cataractous lenses. AB - Normal development of the visual system in infants relies on clear images being projected onto the retina, which can be disrupted by lens opacity caused by congenital cataract. This disruption, if uncorrected in early life, results in amblyopia (permanently decreased vision even after removal of the cataract). Doctors are able to prevent amblyopia by removing the cataract during the first several weeks of life, but this surgery risks a host of complications, which can be equally visually disabling. Here, we investigated the feasibility of focusing light noninvasively through highly scattering cataractous lenses to stimulate the retina, thereby preventing amblyopia. This approach would allow the cataractous lens removal surgery to be delayed and hence greatly reduce the risk of complications from early surgery. Employing a wavefront shaping technique named time-reversed ultrasonically encoded optical focusing in reflection mode, we focused 532-nm light through a highly scattering ex vivo adult human cataractous lens. This work demonstrates a potential clinical application of wavefront shaping techniques. PMID- 29322750 TI - Use of Streptococcus salivarius K12 to reduce the incidence of pharyngo tonsillitis and acute otitis media in children: a retrospective analysis in not recurrent pediatric subjects. AB - BACKGROUND: Previous trials, performed in subjects affected by recurrent streptococcal pharyngo-tonsillar infection, have shown that the use for 90 days of Streptococcus salivarius K12 (K12), an oral colonizing probiotic producing lantibiotic bacteriocins, reduces the occurrence of streptococcal and viral pharyngitis and acute otitis media (AOM). The aim was to evaluate the role of K12 in reducing the incidence of streptococcal and viral pharyngo-tonsillitis and AOM when administered in two separate trimesters, from October to December and then from April to June, in pediatric subjects with non-recurrent streptococcal infection. METHODS: We retrospectively analyzed the incidence of pharyngo tonsillitis and AOM in 133 children by comparing the number of episodes occurring between September 1st, 2014 and August 31st, 2015, when no treatment with K12 was given, with the period between September 1st, 2015 and August 31st, 2016, when K12 was administered. RESULTS: Analysis of the findings for the 133 children demonstrated that K12 use decreased the incidence of pharyngo-tonsillitis by about 90% (P<0.001) and the occurrence of AOM by about 70% (P<0.001) and confirms the high safety profile of the strain. CONCLUSIONS: As already demonstrated in subjects with recurrent streptococcal pharyngo-tonsillar infection, K12, if administered for two trimesters out of 12 months, is associated with a reduced incidence of pharyngitis and AOM in pediatric subjects with non-recurrent streptococcal infection. PMID- 29322751 TI - Romosozumab versus Alendronate and Fracture Risk in Women with Osteoporosis. PMID- 29322752 TI - Romosozumab versus Alendronate and Fracture Risk in Women with Osteoporosis. PMID- 29322753 TI - Romosozumab versus Alendronate and Fracture Risk in Women with Osteoporosis. PMID- 29322754 TI - Canakinumab for Atherosclerotic Disease. PMID- 29322755 TI - Canakinumab for Atherosclerotic Disease. PMID- 29322756 TI - Canakinumab for Atherosclerotic Disease. PMID- 29322758 TI - Canakinumab for Atherosclerotic Disease. PMID- 29322757 TI - Canakinumab for Atherosclerotic Disease. PMID- 29322759 TI - Oxygen Therapy in Suspected Acute Myocardial Infarction. PMID- 29322760 TI - Oxygen Therapy in Suspected Acute Myocardial Infarction. PMID- 29322761 TI - Electrolyte Disturbances in Chronic Alcohol-Use Disorder. PMID- 29322762 TI - Electrolyte Disturbances in Chronic Alcohol-Use Disorder. PMID- 29322763 TI - Electrolyte Disturbances in Chronic Alcohol-Use Disorder. PMID- 29322764 TI - Rapid Veterinary Diagnosis of Bovine Reproductive Infectious Diseases from Semen Using Paper-Origami DNA Microfluidics. AB - The health and well-being of cattle is an important issue in maintaining and increasing global agricultural output. In dairy production within low and middle income countries (LMICs), there is a significant biosensing challenge in detecting sexually transmitted infection (STI) pathogens during animal husbandry, due in part to difficulties associated with the limited infrastructure for veterinary medicine. Here we demonstrate low-cost, multiplexed, and sample-to answer paper-origami tests for the detection of three bovine infectious reproductive diseases in semen samples, collected at a test site in rural India. Pathogen DNA from one viral pathogen, bovine herpes virus-1 (BoHV-1), and two bacteria (Brucella and Leptospira) was extracted, amplified (using loop-mediated isothermal amplification, LAMP), and detected fluorescently, enabling <1 pg (~ from 115 to 274 copies per reaction) of target genomic DNA to be measured. Data was collected as a fluorescence signal either visually, using a low-cost hand held torch, or digitally with a mobile-phone camera. Limits of detection and sensitivities of the paper-origami device for the three pathogens were also evaluated using pathogen-inoculated semen samples and were as few as 50 Leptospira organisms, 50 CFU Brucella, and 1 TCID50 BoHV-1. Semen samples from elite bulls at a germplasm center were also tested in double-blind tests, as a demonstrator for a low-cost, user-friendly point-of-care sensing platform, for in the-field resource-limited regions. The sensors showed excellent levels of sensitivity and specificity, and for the first time a demonstrated ability of the application of paper microfluidics devices for the diagnosis multiple infectious diseases from semen samples. PMID- 29322765 TI - Influence of Nonstoichiometry on Proton Conductivity in Thin-Film Yttrium-Doped Barium Zirconate. AB - Proton-conducting perovskites have been widely studied because of their potential application as solid electrolytes in intermediate temperature solid oxide fuel cells. Structural and chemical heterogeneities can develop during synthesis, device fabrication, or service, which can profoundly affect proton transport. Here, we use time-resolved Kelvin probe force microscopy, scanning transmission electron microscopy, atom probe tomography, and density functional theory calculations to intentionally introduce Ba-deficient planar and spherical defects and link the resultant atomic structure with proton transport behavior in both stoichiometric and nonstoichiometric epitaxial, yttrium-doped barium zirconate thin films. The defects were intentionally induced through high-temperature annealing treatment, while maintaining the epitaxial single crystalline structure of the films, with an overall relaxation in the atomic structure. The annealed samples showed smaller magnitudes of local lattice distortions because of the formation of proton polarons, thereby leading to decreased proton-trapping effect. This resulted in a decrease in the activation energy for proton transport, leading to faster proton transport. PMID- 29322766 TI - Largely Tunable Band Structures of Few-Layer InSe by Uniaxial Strain. AB - Because of the strong quantum confinement effect, few-layer gamma-InSe exhibits a layer-dependent band gap, spanning the visible and near infrared regions, and thus recently has been drawing tremendous attention. As a two-dimensional material, the mechanical flexibility provides an additional tuning knob for the electronic structures. Here, for the first time, we engineer the band structures of few-layer and bulk-like InSe by uniaxial tensile strain and observe a salient shift of photoluminescence peaks. The shift rate of the optical gap is approximately 90-100 meV per 1% strain for four- to eight-layer samples, which is much larger than that for the widely studied MoS2 monolayer. Density functional theory calculations well reproduce the observed layer-dependent band gaps and the strain effect and reveal that the shift rate decreases with the increasing layer number for few-layer InSe. Our study demonstrates that InSe is a very versatile two-dimensional electronic and optoelectronic material, which is suitable for tunable light emitters, photodetectors, and other optoelectronic devices. PMID- 29322767 TI - pH-Dependent Switching of Base Pairs Using Artificial Nucleobases with Carboxyl Groups. AB - In this study, we report the synthesis of modified oligonucleotides consisting of benzoic acid or isophthalic acid residues as new nucleobases. As evaluated by UV thermal denaturation analysis at different pH conditions (5.0, 6.0, 7.0, and 8.0), these modified oligonucleotides exhibited pH-dependent recognition of natural nucleobases and one is first found to be capable of base pair switching in response to a pH change. The isophthalic acid residue incorporated into the oligonucleotide on a d-threoninol backbone could preferentially bind with adenine but with guanine in response to a change in the pH conditions from pH 5 to pH 7 (or 8) without significant difference in duplex stability. These findings would be valuable for further developing pH-responsive DNA-based molecular devices. PMID- 29322768 TI - Identification of Novel "Inks" for 3D Printing Using High-Throughput Screening: Bioresorbable Photocurable Polymers for Controlled Drug Delivery. AB - A robust methodology is presented to identify novel biomaterials suitable for three-dimensional (3D) printing. Currently, the application of additive manufacturing is limited by the availability of functional inks, especially in the area of biomaterials; this is the first time when this method is used to tackle this problem, allowing hundreds of formulations to be readily assessed. Several functional properties, including the release of an antidepressive drug (paroxetine), cytotoxicity, and printability, are screened for 253 new ink formulations in a high-throughput format as well as mechanical properties. The selected candidates with the desirable properties are successfully scaled up using 3D printing into a range of object architectures. A full drug release study and degradability and tensile modulus experiments are presented on a simple architecture to validating the suitability of this methodology to identify printable inks for 3D printing devices with bespoke properties. PMID- 29322769 TI - Composition, Microstructure, and Electrical Performance of Sputtered SnO Thin Films for p-Type Oxide Semiconductor. AB - p-Type SnO thin films were deposited on a Si substrate by a cosputtering process using ceramic SnO and metal Sn targets at room temperature without adding oxygen. By varying the dc sputtering power applied to the Sn target while maintaining a constant radio frequency power to the SnO target, the Sn/O ratio varied from 56:44 to 74:26 at the as-deposited state. After thermal annealing at 180 degrees C for 25 min under air atmosphere using a microwave annealing system, the films were crystallized into tetragonal SnO when the Sn/O ratio increased from 44:56 to 57:43. Notably, the metallic Sn remained when the Sn/O ratio was higher than 55:45 at an annealed state. When the ratio was lower than 55:45 at the annealed state, the incorporated Sn fully oxidized to SnO, making the films useful p-type semiconductors, whereas the films became metallic conductors at higher Sn/O ratios. At the Sn/O ratio of 55:45 at the annealed state, the film showed the highest Hall mobility of 8.8 cm2 V-1 s-1 and a hole concentration of 5.4 * 1018 cm-3. Interestingly, the electrical conduction behavior showed trap-mediated hopping when the Sn metal was cosputtered, whereas the single SnO film showed regular band conduction behavior. The residual stress effect could interpret such property variation originated from the sputtering power and postoxidation-induced volumetric effects. This report makes a critical contribution to the in-depth understanding of the composition-structure-property relationship of this technically important thin film material. PMID- 29322770 TI - High-Performance Quantum Dot Thin-Film Transistors with Environmentally Benign Surface Functionalization and Robust Defect Passivation. AB - The recent development of high-performance colloidal quantum dot (QD) thin-film transistors (TFTs) has been achieved with removal of surface ligand, defect passivation, and facile electronic doping. Here, we report on high-performance solution-processed CdSe QD-TFTs with an optimized surface functionalization and robust defect passivation via hydrazine-free metal chalcogenide (MCC) ligands. The underlying mechanism of the ligand effects on CdSe QDs has been studied with hydrazine-free ex situ reaction derived MCC ligands, such as Sn2S64-, Sn2Se64-, and In2Se42-, to allow benign solution-process available. Furthermore, the defect passivation and remote n-type doping effects have been investigated by incorporating indium nanoparticles over the QD layer. Strong electronic coupling and solid defect passivation of QDs could be achieved by introducing electronically active MCC capping and thermal diffusion of the indium nanoparticles, respectively. It is also noteworthy that the diffused indium nanoparticles facilitate charge injection not only inter-QDs but also between source/drain electrodes and the QD semiconductors, significantly reducing contact resistance. With benign organic solvents, the Sn2S64-, Sn2Se64-, and In2Se42- ligand based QD-TFTs exhibited field-effect mobilities exceeding 4.8, 12.0, and 44.2 cm2/(V s), respectively. The results reported here imply that the incorporation of MCC ligands and appropriate dopants provide a general route to high-performance, extremely stable solution-processed QD-based electronic devices with marginal toxicity, offering compatibility with standard complementary metal oxide semiconductor processing and large-scale on-chip device applications. PMID- 29322771 TI - Tunable Valley and Spin Polarizations in BiXO3/BiIrO3 (X = Fe, Mn) Ferroelectric Superlattices. AB - The generation and modulation on valley and spin degrees of freedom are essential for multifunctional electronic devices. Herewith, the electronic structures in BiXO3/BiIrO3 (X = Fe, Mn) ferroelectric superlattices are studied by first principles calculations with spin-orbital coupling. Different from the previous BiAlO3/BiIrO3 system, both valley and spin polarizations in bilayered BiIrO3 are achieved in BiXO3/BiIrO3 superlattices, where the spin polarization in the valley can be engineered by the spin orientation of Fe or Mn owing to the xy-plane orbitals. Especially, the relatively parallel and antiparallel directions of ferroelectric polarization in BiFeO3 and BiIrO3 can switch the valley injection in BiFeO3/BiIrO3 superlattices. Overall, the tunable valley and spin polarizations in BiFeO3/BiIrO3 ferroelectric superlattices pave a way for developing nonvolatile data memories and valley-spin devices. PMID- 29322772 TI - Stable Aluminum Metal-Organic Frameworks (Al-MOFs) for Balanced CO2 and Water Selectivity. AB - Three new Al-MOFs in the formation of [Al4(OH)2(OCH3)4(OH-BDC)3].xH2O (BIT-72), [Al4(OH)2(OCH3)4(CH3-BDC)3].xH2O (BIT-73) and {Al4(OH)2(OCH3)4[(CH3)2-BDC]3}.xH2O (BIT-74) have been synthesized by assembling Al3+ ion with terephthalic acid ions decorated with monohydroxyl, monomethyl or dimethyl groups, respectively. All of these three MOFs exhibit high stability in boiling water and acidic conditions. Among them, BIT-72 shows the highest surface area of 1618 m2.g-1 and IAST CO2/N2 selectivity of 48, while BIT-73 and BIT-74 present moderate IAST CO2/N2 selectivity and much lower H2O capacity below P/P0 = 0.3. The high CO2/N2 selectivity together with alleviative H2O sorption at low water relative pressure may provide promising potential in postcombustion CO2 capture. PMID- 29322773 TI - Surface-Enhanced Raman Spectroscopy-Based Label-Free Insulin Detection at Physiological Concentrations for Analysis of Islet Performance. AB - Label-free optical detection of insulin would allow in vitro assessment of pancreatic cell functions in their natural state and expedite diabetes-related clinical research and treatment; however, no existing method has met these criteria at physiological concentrations. Using spatially uniform 3D gold nanoparticle sensors, we have demonstrated surface-enhanced Raman sensing of insulin in the secretions from human pancreatic islets under low and high glucose environments without the use of labels such as antibodies or aptamers. Label-free measurements of the islet secretions showed excellent correlation among the ambient glucose levels, secreted insulin concentrations, and measured Raman emission intensities. When excited at 785 nm, plasmonic hotspots of the densely arranged 3D gold-nanoparticle pillars as well as strong interaction between sulfide linkages of the insulin molecules and the gold nanoparticles produced highly sensitive and reliable insulin measurements down to 100 pM. The sensors exhibited a dynamic range of 100 pM to 50 nM with an estimated detection limit of 35 pM, which covers the reported concentration range of insulin observed in pancreatic cell secretions. The sensitivity of this approach is approximately 4 orders of magnitude greater than previously reported results using label-free optical approaches, and it is much more cost-effective than immunoassay-based insulin detection widely used in clinics and laboratories. These promising results may open up new opportunities for insulin sensing in research and clinical applications. PMID- 29322774 TI - Visible-Light-Induced Decarboxylation Coupling/Intramolecular Cyclization: A One Pot Synthesis for 4-Aryl-2-quinolinone Derivatives. AB - A visible-light-induced decarboxylation coupling/intramolecular cyclization is reported. The one-pot synthesis system provides mild, efficient, and atom economical access to the synthesis of 4-aryl-2-quinolinone derivatives. It is notable that the necessary oxidant in the traditional decarboxylation coupling is replaced by the visible-light irradiation in this paper. In addition, the HBV inhibitor is synthesized by the one-pot synthesis system in an atom economical manner. PMID- 29322775 TI - Effect of Metal Doping and Vacancies on the Thermal Conductivity of Monolayer Molybdenum Diselenide. AB - It is well understood that defect engineering can give rise to exotic electronic properties in transition-metal dichalcogenides, but to this date, there is no detailed study to illustrate how defects can be engineered to tailor their thermal properties. Here, through combined experimental and theoretical approaches based on the first-principles density functional theory and Boltzmann transport equations, we have explored the effect of lattice vacancies and substitutional tungsten (W) doping on the thermal transport of the suspended molybdenum diselenide (MoSe2) monolayers grown by chemical vapor deposition (CVD). The results show that even though the isoelectronic substitution of the W atoms for Mo atoms in CVD-grown Mo0.82W018Se2 monolayers reduces the Se vacancy concentration by 50% compared to that found in the MoSe2 monolayers, the thermal conductivity remains intact in a wide temperature range. On the other hand, Se vacancies have a detrimental effect for both samples and more so in the Mo0.82W018Se2 monolayers, which results in thermal conductivity reduction up to 72% for a vacancy concentration of 4%. This is because the mass of the W atom is larger than that of the Mo atom, and missing a Se atom at a vacancy site results in a larger mass difference and therefore kinetic energy and potential energy difference. Furthermore, the monotonically increasing thermal conductivity with temperature for both systems at low temperatures indicates the importance of boundary scattering over defects and phonon-phonon scattering at these temperatures. PMID- 29322776 TI - Altered Serum Metabolite Profiling and Relevant Pathway Analysis in Rats Stimulated by Honeybee Venom: New Insight into Allergy to Honeybee Venom. AB - To improve our understanding of the disturbed metabolic pathways and cellular responses triggered by honeybee venom stimulation, we compared the changes in serum metabolites in rats, either stimulated or not by honeybee venom, by performing 1H nuclear magnetic resonance (NMR) spectrometry-based metabonomics to identify potential biomarkers. In this study, 65 metabolites were structurally confirmed and quantified and the following results were obtained. First, by pattern recognition analysis, 14 metabolites were selected as potential biomarkers 3 h after venom stimulation. Second, metabolic pathway analysis showed that methane metabolism, glyoxylate and dicarboxylate metabolism, tricarboxylic acid cycle, glycine, serine, and threonine metabolism, arginine and proline metabolism were affected. Finally, the time-dependent metabolic modifications indicated that rats could recover without medical treatment 24 h after venom stimulation. In summary, this new insight into the changes in serum metabolites in rats after honeybee venom stimulation has enhanced our understanding of the response of an organism to honeybee venom. PMID- 29322777 TI - Skeletal Reorganization: Synthesis of Diptoindonesin G from Pauciflorol F. AB - Described herein is a novel synthetic approach to diptoindonesin G, a highly potent anticancer oligostilbenoid natural product, from pauciflorol F pentamethyl ether through a skeletal reorganization strategy where oxidative cleavage of the indanone ring system of pauciflorol F and sequential cyclization of the key intermediate allowed direct access to the target skeleton. PMID- 29322780 TI - Signal and Noise in FET-Nanopore Devices. AB - The combination of a nanopore with a local field-effect transistor (FET nanopore), like a nanoribbon, nanotube, or nanowire, in order to sense single molecules translocating through the pore is promising for DNA sequencing at megahertz bandwidths. Previously, it was experimentally determined that the detection mechanism was due to local potential fluctuations that arise when an analyte enters a nanopore and constricts ion flow through it, rather than the theoretically proposed mechanism of direct charge coupling between the DNA and nanowire. However, there has been little discussion on the experimentally observed detection mechanism and its relation to the operation of real devices. We model the intrinsic signal and noise in such an FET-nanopore device and compare the results to the ionic current signal. The physical dimensions of DNA molecules limit the change in gate voltage on the FET to below 40 mV. We discuss the low-frequency flicker noise (<10 kHz), medium-frequency thermal noise (<100 kHz), and high-frequency capacitive noise (>100 kHz) in FET-nanopore devices. At bandwidths dominated by thermal noise, the signal-to-noise ratio in FET-nanopore devices is lower than in the ionic current signal. At high frequencies, where noise due to parasitic capacitances in the amplifier and chip is the dominant source of noise in ionic current measurements, high-transconductance FET-nanopore devices can outperform ionic current measurements. PMID- 29322779 TI - Mining the Secretome of C2C12 Muscle Cells: Data Dependent Experimental Approach To Analyze Protein Secretion Using Label-Free Quantification and Peptide Based Analysis. AB - Secretome analysis faces several challenges including detection of low abundant proteins and the discrimination of bona fide secreted proteins from false positive identifications stemming from cell leakage or serum. Here, we developed a two-step secretomics approach and applied it to the analysis of secreted proteins of C2C12 skeletal muscle cells since the skeletal muscle has been identified as an important endocrine organ secreting myokines as signaling molecules. First, we compared culture supernatants with corresponding cell lysates by mass spectrometry-based proteomics and label-free quantification. We identified 672 protein groups as candidate secreted proteins due to their higher abundance in the secretome. On the basis of Brefeldin A mediated blocking of classical secretory processes, we estimated a sensitivity of >80% for the detection of classical secreted proteins for our experimental approach. In the second step, the peptide level information was integrated with UniProt based protein information employing the newly developed bioinformatics tool "Lysate and Secretome Peptide Feature Plotter" (LSPFP) to detect proteolytic protein processing events that might occur during secretion. Concerning the proof of concept, we identified truncations of the cytoplasmic part of the protein Plexin B2. Our workflow provides an efficient combination of experimental workflow and data analysis to identify putative secreted and proteolytic processed proteins. PMID- 29322781 TI - Ab Initio Study Predicts That Enigmatic Isonitrosyl Fluoride Should Be Stable at Low Temperatures yet Unnoticeable Due to Its Photoreactivity. AB - Isonitrosyl fluoride F-ON remains an undetected molecule despite multiple attempts to generate it and successful identification of other isonitrosyl halides (X-ONs) via phototransformations of corresponding X-NOs. We investigated this problem using ab initio methods and found no evidence of instability of F-ON at low temperatures of 8-10 K. Instead, experimental observation of F-ON is likely challenged by the (1) different nature of photoexcitation of F-NO and its quantum yield being lower than those of other X-NOs and (2) the presence of a bright charge-transfer transition in the F-ON spectrum that likely overlaps with the weak band of F-NO used for photoexcitation. Formation of F-ON via symmetry prohibited photoexcitation of F-NO is followed by its immediate photodecomposition to the charge-transfer excited state and its conversion to F NO upon de-excitation. Thus, F-ON should be readily observable using non photochemistry methods such as microwave spectroscopy. PMID- 29322782 TI - Aerobic Oxidation of Alkyl 2-Phenylhydrazinecarboxylates Catalyzed by CuCl and DMAP. AB - Recently, various fruitful organic reactions such as a catalytic Mitsunobu reaction were reported by virtue of alkyl 2-phenylazocarboxylates, however, the synthesis of alkyl 2-phenylazocarboxylates largely depended on the stoichiometric use of toxic oxidants. In this manuscript, an environment-friendly aerobic oxidative transformation of alkyl 2-phenylhydrazinecarboxylates to alkyl 2 phenylazocarboxylates is disclosed. The use of CuCl and DMAP system efficiently catalyzed the aerobic oxidation of alkyl 2-phenylhydrazinecarboxylates under mild conditions. The reaction rate of the present Cu-catalysis was much faster than that of the previously reported Fe-catalysis, and a variety of azo products were synthesized within 3 h. The present protocol was effective on larger scale. It was observed that the produced azo compound could undergo various reactions without isolation through one-pot sequential protocols. PMID- 29322783 TI - MicroRNAs in triple-negative breast cancer. AB - Triple-negative breast cancer (TNBC) is a molecular subtype of breast cancer with one of the worst prognoses. Current treatment is based on chemo- and/or radiotherapy and surgery. New targets, however, offering other therapeutic approaches, have been identified. These involve poly (ADP-ribose) polymerase (PARP), vascular endothelial growth factor receptor (VEGFR), epidermal growth factor receptor (EGFR), androgen receptor (AR), long non-coding RNAs (lncRNAs) and microRNAs (miRs). The latter are non-coding RNAs which control the expression of more than 50% of human genes via regulation of basic cellular processes at post-transcriptional level and dysregulation of miRs is found in many types of tumors. The role of dysregulated miRs in carcinogenesis lies in their acting as tumor suppressors or oncogenes, and in resistance to treatment (chemotherapy, hormonal and targeted therapy or radiotherapy). Circulating miRs are also promising prognostic and predictive biomarkers in patients with breast cancer. The aim of this review is to analyze recently published data on miRs and therapeutic targets potentially influenced by miRs in TNBC. PMID- 29322784 TI - Bioinformatic analysis of changes in RNA polymerase II transcription stimulated by estradiol in MCF7 cells. AB - Estradiol (E2) is the most potent estrogen and RNA polymerase II (Pol II) regulates a great mass of gene expression. This study was designed to illustrate the mechanisms of estrogen-dependent human breast cancer (BC) through Pol II. ChIP-seq data, DNase-seq data and other sequencing data of human BC MCF-7 cells were downloaded from Gene Expression Omnibus database. Each of these datasets included one control and one E2 treated sample. Sequence alignment was performed and Pol II factor binding signal was determined. Functional enrichment analysis of particular genes was performed, along with transcription factor (TF) motif enrichment analysis. Sites with enhanced Pol II binding were identified in intergenic regions. Pol II binding sites with increased binding signal facilitated chromosome switching from a closed to an open state. A total of 59 TFs, including KLF4 (Kruppel-like factor 4), were identified. Besides, enrichment analysis revealed that protein synthesis and metabolic processes as well as cell cycle processes were highlighted. The KLF4 motif was found to be enriched and was significantly enhanced in the promoter region for Pol II binding. Cell cycle processes, protein synthesis and metabolism play critical roles in the progression of E2-stimulated BC. In addition, KLF4 may be important for the progression. PMID- 29322785 TI - Triptolide induces mitochondrial apoptosis through modulating dual specificity phosphatase 1/mitogen-activated protein kinases cascade in osteosarcoma cells. AB - Due to chemoresistance and metastasis, the overall prognosis of osteosarcoma (OS) has not improved over the last two decades. Exploring novel therapeutic agents that can circumvent theses malignant phenotypes of OS would be essential to improve the survival of OS patients. Triptolide is a unique diterpene triepoxide that possesses potent antitumor activities.However, the effects and mechanism of triptolide on OS cells remain unknown. The effects of triptolide on viability, apoptosis, cell cycle distribution and migratory ability of OS cells were measured using MTT, flow cytometry and wound healing and transwell invasion assays. And an OS tumor xenograft mouse model was produced to further study the in vivo antitumor effects of triptolide. The expression of DUSP1 at the protein and mRNA level in OS cells was detected by western blot and qPCR. We report that triptolide exhibits multidimensional antitumor activities in OS cells, including the induction of apoptosis and G1 phase accumulation, inhibition of cell viability, migration, and invasion. We further demonstrate that triptolide inhibits the expression of dual-specificity protein phosphatase1 (DUSP1) through inhibiting its promoter activity, which causes sustained activation of three subfamilies of mitogen-activated protein kinase (MAPK). And the modulation of DUSP1/MAPK cascade is associated with the apoptosis of OS cells, since the ectopic expression of DUSP1 or the inhibition of MAPK using specific inhibitors can counteract triptolide-induced apoptosis. In addition, triptolide enhances doxorubicin-induced apoptosis. In summary, our study suggests that DUSP1 is an important cellular target of triptolide, and triptolide may be a promising treatment option for OS as a single agent or combined with other chemotherapeutics. PMID- 29322786 TI - CCAAT enhancer binding protein beta promotes tumor growth and inhibits apoptosis in prostate cancer by methylating estrogen receptor beta. AB - The CCAAT enhancer binding protein beta (C/EBPbeta) is overexpressed at late stages in carcinogenesis of prostate cancer (PCa), suggesting that it could potentially contribute to progression of PCa. Estrogen receptor beta (ERbeta) is a tumor suppressor gene in PCa. However, whether C/EBPbeta could regulate ERbeta by promoter methylation is still poorly understood.In this study, expression levels of C/EBPbeta and ERbeta in two PC lines (LNCap and PC-3), prostatic epithelial cell line (RWPE-1), forty-eight paired non-cancerous and cancerous peripheral blood samples were examined via qRT-PCR, western blotting and methylation-specific PCR. In addition, PCa cell line was infected with pCDH C/EBPbeta and pLKO.1-C/EBPbeta and expression levels of C/EBPbeta, ERbeta and DNA methyltransferases were detected. Finally, the role of C/EBPbeta in proliferation and apoptosis of PCa cell lines was examined by MTT and flow cytometer assay. Our results show a higher frequency of promoter methylation of ERbeta levels in blood samples from PCa patients (16 of 48 cases) compared with that from healthy controls (3 of 48). Besides, elevated expression levels of C/EBPbeta were found in PCa patients and two PCa lines (LNCap and PC-3) compared to non-cancerous cases or prostatic epithelial cell line (RWPE-1), while opposite expression levels of ERbeta were found. Overexpression of C/EBPbeta could regulate ERbeta expression, DNA methyltransferases expression, cell proliferation and apoptosis. Our results support the conclusion that C/EBPbeta down-regulated ERbeta expression through increasing its promoter methylation, and then regulated proliferation and apoptosis in PCa. PMID- 29322787 TI - Beclin1 enhances cisplatin-induced apoptosis via Bcl-2-modulated autophagy in laryngeal carcinoma cells Hep-2. AB - To investigate the role of Beclin1 in cisplatin-induced apoptosis in laryngeal carcinoma cells Hep-2 and to explore the potential mechanism. We up-regulated Beclin1 expression in Hep-2 cells. The survival rate and apoptotic rate were evaluated by MTT and flow cytometry (FCM). The Beclin1 overexpression group and the control group were treated with cisplatin for 24 hours. The proliferation and cell apoptosis of laryngeal cancer cell lines were evaluated. The mitochondrial membrane potentials were detected by DiOC6(3). Activities of Caspase-8/9/3 and convention of microtubule-associated protein one light chain 3 (LC3) were detected by western blot. The effect of Bcl-2 overexpression on increased cisplatin-sensitivity and autophagy induced by Beclin1 was investigated using Bcl 2 cDNA transfection. Expression of Beclin1 in Hep-2 cells was meaningfully enhanced by transfection, and the proliferation and the apoptosis were not considerably affected. By cisplatin treatment, the Beclin1 overexpression group showed lower survival rate and higher apoptotic rate than the control group (p<0.05). Decrease of mitochondrial membrane potential and increase of activities of Caspase-8, Caspase-9 and Caspase-3 were detected. Beclin1 overexpression increase the convention of LC3, especially after the cisplatin treatment. Overexpression of Bcl-2 decreased the cisplatin-induced apoptosis and inhibited Beclin1-induced autophagy. In conclusion, Beclin1 enhances cisplatin-induced apoptosis in laryngeal carcinoma cells Hep-2 via Bcl-2 modulated autophagy. PMID- 29322788 TI - MicroRNA-421 inhibits caspase-10 expression and promotes breast cancer progression. AB - Breast cancer is one of the most prevalent and fatal diseases around the world. The mechanism of tumorigenesis in breast cancer remains to be clarified. miR-421 plays an oncogenic role in many cancers. Although, the clinical significance of miR-421 in patients with breast cancer is still to be investigated. Caspase-10 is one of the initiator of apoptosis. But the relationship between miR-421 and caspase-10 has not been investigated. In the present study, we found that miR-421 was expressed much higher in breast cancer tissues compared to those in adjacent non-tumor tissues. Furthermore, miR-421 promotes cell proliferation and colony formation in vitro. miR-421 inhibits cell apoptosis probably through restraining caspase-10 expression. Thus, miR-421 might be a potential diagnostic maker and therapeutic target for breast cancer. PMID- 29322789 TI - RNA interference-mediated silencing of aquaporin (AQP)-5 hinders angiogenesis of colorectal tumor by suppressing the production of vascular endothelial growth factor. AB - Aquaporin (AQP)-5 is an essential member of AQP family involved in the tumorigenesis of various malignant tumors. However, its role in the angiogenesis of colorectal cancer is unclear and requires further investigation. In this study, a pRNA-H1.1 vector containing the short hairpin RNA (shRNA) targeting AQP5 mRNA was constructed to inhibit the endogenous expression of AQP5 in human umbilical vein endothelial cells (HUVECs). We found that the AQP5-silenced HUVECs acquired decreased proliferation, migration and tube formation ability. AQP5 shRNA also inhibited the enzyme activity of matrix metalloprotease (MMP)-9 in HUVECs without affecting the MMP-2. Further, two colorectal cancer cell lines (HT29 and HCT116) stably transfected with scrambled or AQP5 shRNA were established. The expression and secretion of vascular endothelial growth factor (VEGF)-A (a pro-angiogenic factor) in colorectal cancer cells were downregulated by AQP5 shRNA. HUVECs cultured in low-VEGF conditioned media (CM) obtained from cancer cells developed less vessel-like tubes and had decreased proliferation and migration. The growth and angiogenesis of xenograft tumors were suppressed when the endogenous AQP5 in HT29 cells was knocked down. Tumor samples were additionally collected from patients with colorectal cancer to analyze the expression of AQP5. The immunofluorescence data indicated that AQP5 was expressed in both inner cancer areas and CD31-positive vessels. Taken together, our study suggests AQP5 as a novel anti-angiogenesis target for colorectal cancer. PMID- 29322790 TI - Integrated network analysis to identify the key genes, transcription factors, and microRNAs involved in hepatocellular carcinoma. AB - HCC (hepatocellular carcinoma), which can be induced by cirrhosis and viral hepatitis infection, is the most frequent form of liver cancer. This study is performed to investigate the mechanisms of HCC. GSE57957 was obtained from Gene Expression Omnibus database, including 39 HCC samples and 39 adjacent non tumorous samples. The DEGs (differentially expressed genes) were screened using the limma package in R, and then were conducted with enrichment analysis using "BioCloud" platform. Using STRING database, WebGestalt tool, as well as ITFP and TRANSFAC databases, PPI (protein-protein interaction) pairs, miRNA (microRNA) target pairs, and TF (transcription factor)-target pairs separately were predicted. Followed by integrated network was constructed by Cytoscape software and module analysis was performed using the MCODE plugin of Cytoscape software. There were 518 DEGs identified from the HCC samples, among which 17 up-regulated genes (including MCM2, MCM6, and CDC20) and 5 down-regulated genes could also function as TFs. In the integrated network for the down-regulated genes, FOS and ESR1 had higher degrees, and both of them were targeted by miR-221 and miR-222. Additionally, MCM2 had interaction with MCM6 in the up-regulated module with the highest score. MCM2, MCM6, CDC20, FOS, ESR1, miR-221 and miR-222 might affect the pathogenesis of HCC. PMID- 29322791 TI - Targeting RAD50 increases sensitivity to radiotherapy in colorectal cancer cells. AB - Radiotherapy resistance remains the major factor limiting the radiotherapy efficacy in colorectal cancer. The Mre11-RAD50-Nbs1 (MRN) complex is known to play a critical role in the DNA double strand breaks (DSBs) repair pathways and thus facilitates radioresistance. Targeting MRN function can sensitize cancer cells to irradiation in some malignancies. In this study, we stably knocked down RAD50 protein in colorectal cancer (CRC) cell lines, HCT116 and DLD1, and evaluated their response to irradiation as well as the DSB repair dynamics. We observed that downregulation of RAD50 sensitized CRC cells to irradiation with reduction in DSB repair efficiency after exposure to irradiation. In addition, RAD50 was found to be upregulated in CRC cancerous tissue samples compared to non cancerous adjacent tissues (NATs) and in patients who were resistant to RT. Elevated RAD50 expression was associated with poor patient survival in CRC. In conclusion, targeting RAD50 can serve as an efficient strategy to sensitize CRC cells to irradiation. RAD50 protein may be used as a biomarker for patient survival in CRC. PMID- 29322792 TI - KrasG12D-LOH promotes malignant biological behavior and energy metabolism of pancreatic ductal adenocarcinoma cells through the mTOR signaling pathway. AB - Oncogenic Kras with loss of heterozygosity (LOH) is frequently detected in various tumours. However, the exact function and mechanism by which KrasG12D-LOH operates remain unclear. Therefore, the current study investigated the effect of KrasG12D-LOH on the malignant phenotype of pancreatic ductal adenocarcinoma (PDAC) cells. Our investigation revealed that KrasG12D-LOH is associated with increased proliferation, invasion and reduced apoptosis in PDAC cells. The results also exhibited enhanced glycolytic phenotype of KrasG12D-LOH PDAC cells. Hyperactive mTOR plays a significant role in the initiation and maintenance of tumors. To investigate the correlation between KrasG12D-LOH and mTOR, the mTOR signaling pathway was detected by western blot analysis. We found that KrasG12D LOH up-regulated Akt, AMPK, REDD1 and mTOR in PDAC cells. In summary, our results demonstrated that KrasG12D-LOH promotes oncogenic Kras-induced PDAC by regulating energy metabolism and mTOR signaling pathway. These data may provide novel therapeutic perspectives for PDAC. PMID- 29322793 TI - MiR-1-3p inhibits cell proliferation and invasion by regulating BDNF-TrkB signaling pathway in bladder cancer. AB - Recent studies have confirmed the existence of BDNF and tropomyosin-related kinase B (TrkB) in normal and cancerous urothelium. However, the corresponding mechanisms and upstream signal pathways of BDNF/TrkB have not been fully discovered. This study aimed to investigate the effects of miR-1-3p on bladder cancer (BC) by regulating BDNF-TrkB signal pathway. The expression of miR-1-3p and BDNF in BC tissues and cell lines were detected by Cancer Genome Atlas (TCGA) microarray analysis, RT-qPCR and western blot. Cell transfection was done using Lipofectamine 2000. Then cell viability, proliferation, migration and apoptosis were measured by MTT, colony formation assay, Transwell assay and flow cytometry, respectively. The relationship between miR-1-3p and BDNF was confirmed by luciferase reporter gene assay. MiR-1-3p was significantly down-regulated in BC tissues and cell lines, while BDNF was significantly up-regulated compared to normal samples. MiR-1-3p targeted BDNF and suppressed its expression. Transfections of miR-1-3p mimics and BDNF siRNAs can suppress BC cell proliferation, invasion and induce cell apoptosis. In addition, miR-1-3p can inhibit phosphorylation of the TrkB by regulating BDNF.In conclusion, MiR-1-3p has significant effects on viability, proliferation, invasion and apoptosis of BC cells by regulating BDNF-TrkB pathway. PMID- 29322794 TI - Integrated analysis of the RNA-Seq data of liver hepatocellular carcinoma. AB - The present study aimed to explore the genetic changes involved in the liver hepatocellular carcinoma (HCC) development. The RNA-Seq data of 212 HCC tissue samples and 50 normal tissue samples were downloaded using TCGA-Assembler. A total of 4 subgroups were obtained, and 4167, 6279, 5379, and 2548 DEGs were screened in group 1, group 2, group 3, and group 4, respectively. Enrichment analysis found that cell cycle, metabolism, and translation related terms were the most significantly changed functions and pathways. There were 454 genes (1114 pairs), 803 genes (722 pairs), and 788 genes (724 pairs), separately interacted in the condition specific PPI network of group 1, 2, 3, and 4, with MMP2, ATNXN1, F2, and HDAC1 as the hub genes. What's more, using these genes, total 7, 20, 198, and 1 subtype related miRNAs; 35, 50, 47, and 17 subtype related TFs; 1, 1, 0, and 2 subtype related drugs were screened in group 1, 2, 3, and 4, respectively. The integrated biological analysis on RNA-Seq data provided substantial of bio molecular related to the HCC development. miR-147b, SP1, and Riboflavin were the subtype-related regulator/drug for HCC. The study about the big data of HCC RNA Seq data reveals the intrinsic gene expression pattern of the tumor, which provides a novel perspective to understand the heterogeneity of pathogenesis in HCC tumorigenesis. PMID- 29322796 TI - Pitfalls of Contrast Enhanced Ultrasound (CEUS) in determination of breast tumor biological dignity. AB - The aim of this prospective study was to identify characteristics of breast lesions on contrast enhanced ultrasound (CEUS) that can be a source of diagnostic ambiguity and cause under- or overestimation of examined breast lesions. 215 women (range 23-76 y., mean age 53.16 y) with 215 breast lesions were examined by B-mode ultrasound, followed by CEUS and core biopsy. CEUS parameters: degree of opacification, character of washout and preliminary CEUS result (suspicious, non suspicious, uncertain) were subsequently correlated with histopathological outcomes. Observed qualitative variables, CEUS results and their analysis with respect to histological type were evaluated using Pearson chi2 square test, p<0.05 was statistically significant. Differences in mean lesion size, mean age of patients, mean size between groups (malignant/benign) with respect to CEUS result were evaluated by t-test. 215 tumors, 116 (53.93%) benign and 99 (46.05%) malignant lesions. 17 (14.66%) benign and 15 (15.15%) malignant lesions expressed atypical washout, 5 (4.31%) benign lesions had early washout and 38 (38.38%) had continuous washout (p<0.0001). 56 (48.28%) benign and 55 (55.56%) malignant lesions had middle degree of opacification, 19 (16.38%) benign had high and 5 (5.05%) malignant lesions low degree of opacification (p<0.0001). Finally, 38 (32.72%) benign and 20 (20.20%) malignant were marked CEUS uncertain. As risk lesions are considered fibroadenomas, fibrocystic lesions, papillomas and low grade DCIS or invasive breast tumors, especially lesions smaller than 10 mm.Identification of CEUS pitfalls with respect to problematic histopathologic entities can reduce the risk of misdiagnosis and improve further management of breast lesions. PMID- 29322795 TI - Analysis of DNA methylation and microRNA expression in NUT (nuclear protein in testis) midline carcinoma of the sinonasal tract: a clinicopathological, immunohistochemical and molecular genetic study. AB - The aim of this study was a detailed clinicopathological investigation of sinonasal NUT midline carcinoma (NMC), including analysis of DNA methylation and microRNA (miRNA) expression. Three (5%) cases of NMC were detected among 56 sinonasal carcinomas using immunohistochemical screening and confirmed by fluorescence in situ hybridization. The series comprised 2 males and 1 female, aged 46, 60, and 65 years. Two tumors arose in the nasal cavity and one in the maxillary sinus. The neoplasms were staged pT1, pT3, and pT4a (all cN0M0). All patients were treated by radical resection with adjuvant radiotherapy. Two patients died 3 and 8 months after operation, but one patient (pT1 stage; R0 resection) experienced no evidence of disease at 108 months. Microscopically, all tumors consisted of infiltrating nests of polygonal cells with vesicular nuclei, prominent nucleoli and basophilic cytoplasm. Abrupt keratinization was present in only one case. Immunohistochemically, there was a diffuse expression of cytokeratin (CK) cocktail, CK7, p40, p63, and SMARCB1/INI1. All NMCs tested negative for EBV and HPV infection. Two NMCs showed methylation of RASSF1 gene. All other genes (APC, ATM, BRCA1, BRCA2, CADM1, CASP8, CD44, CDH13, CDKN1B, CDKN2A, CDKN2B, CHFR, DAPK1, ESR1, FHIT, GSTP1, HIC1, KLLN, MLH1a, MLH1b, RARB, TIMP3, and VHL) were unmethylated. All NMCs showed upregulation of miR-9 and downregulation of miR-99a and miR-145 and two cases featured also upregulation of miR-21, miR-143, and miR-484. In summary, we described three cases of sinonasal NMCs with novel findings on DNA methylation and miRNA expression, which might be important for new therapeutic strategies in the future. PMID- 29322797 TI - Effectiveness of nanoparticle albumin-bound paclitaxel plus carboplatin in non small lung cancer patients with malignant pleural effusion. AB - Malignant pleural effusion (MPE) is a common complication occurring in cancer patients, and its management affects the prognosis of these patients. Preclinical and clinical studies have reported that treatment with nanoparticle albumin-bound paclitaxel (nab-paclitaxel) plus carboplatin (CBDCA) is effective against intraperitoneal malignant tumors. To investigate the effectiveness of nab paclitaxel plus CBDCA therapy for MPEs arising in patients with non-small cell lung cancer (NSCLC), we retrospectively analyzed the clinicopathological characteristics of 40 patients with stage IIIb or IV NSCLC who were treated with nab-paclitaxel plus CBDCA from 2013 to 2016. Out of 26 patients with MPEs who were treated with nab-paclitaxel plus CBDCA in this study, 21 patients (80.8%) had effective responses in MPEs; 6 of 21 patients exhibited complete responses (23.1%) and 15 of 21 had partial responses (57.7%). Kaplan-Meier survival curves and log-rank tests to evaluate the effectiveness of nab-paclitaxel plus CBDCA therapy against MPEs showed longer median progression-free survival (323 days vs. 26 days; p=0.009) and overall survival (not reached vs. 199 days; p=0.047) in patients with complete responses compared with those who achieved no response. There were no statistical differences between therapeutic effects on MPEs and those on systemic lesions. Nab-paclitaxel plus CBDCA therapy may be a preferred therapeutic option for patients with NSCLC who experience MPEs, and its effectiveness in treatment of MPEs may need to be evaluated separately from its therapeutic responses in systemic lesions. PMID- 29322798 TI - PD-L1 expression can be regarded as prognostic factor for survival of non-small cell lung cancer patients after chemoradiotherapy. AB - Inoperable locally advanced non-small cell lung cancer (LA NSCLC) is treated with concurrent or sequential chemotherapy (ChT) and radiation therapy (RT). Survival rates with this treatment remains poor, reported 5-year survival is about 15%. New treatment strategies, including immunotherapy with programmed death ligand-1 (PD-L1) check point inhibitors are being investigated. The clinical significance of PD-L1 expression in tumor samples from patients with inoperable LA NSCLC who underwent concurrent chemoradiotherapy (CRT) in our institution between 2005 and 2010 was evaluated. The expression of PD-L1 was correlated with clinical and pathological parameters and outcome of treatment. We analysed 107 patients treated with concurrent CRT. Only 43 patients (36 males and 7 females) had sufficient tissue for immunohistochemical (IHC) staining. PD-L1 expression was demonstrated in 7 tumors. No statistical significant differences in patient characteristics, including age, smoking status and gender, were found according to the PD-L1 expression. After a median follow up of 103.6 months, median progression free survival (PFS) was 19.9 months in patients without and 10.1 months in patients with PD-L1 expression (p=0.006). Median overall survival (OS) was 28.4 and 12.1 months for PD-L1 negative and PD-L1 positive patients, respectively (p=0.012).In conclusions, PD-L1 expression was negative prognostic factor for PFS and OS after concurrent CRT in LA NSCLC. As only small number of patients had enough tissue for the IHC testing, no firm conclusions could be made and further investigation is warranted. PMID- 29322799 TI - Predictors and prognostic implications of clinical decisions in patients with primary high-risk non-muscle-invasive bladder cancer - results of a cross country retrospective study. AB - Adjuvant diagnostic and therapeutic procedures are available to reduce the risk of recurrence or progression in patients with high-risk non-muscle-invasive bladder cancer (NMIBC). However, their indications and efficacy remain a matter of debate. The aim of this study was to analyze therapeutic decisions in patients with primary high-risk NMIBC and to analyze the adherence to clinical guidelines in this field.545 consecutive patients, aged a median of 70.3 years, diagnosed with primary high-risk NMIBC in thirteen urological institutions, were enrolled into this retrospective study. Diagnostic and therapeutic decisions after transurethral resection (TUR) were recorded, and predictive factors were analyzed.Restaging TUR was offered to 260 patients (47.7%), up-front intravesical Bacillus Calmette-Guerin (BCG) therapy to 74 patients (13.6%), immediate radical cystectomy to 38 patients (7.0%), and intravesical chemotherapy with the maintenance therapy to 12 patients (2.2%). No additional procedure was performed in 161 patients (29.5%). The strongest predictive factor for restaging TUR was G3 or high-grade cancer (RR 1.68, p<0.01), for upfront BCG therapy it was carcinoma in situ (RR 3.20, p=0.01), for immediate cystectomy it was stage T1 tumor (RR 3.71, p<0.01), for no additional procedures it was G2 or low-grade cancer (RR 2.18, p<0.01).Clinical management of patients with high-risk NMIBC is suboptimal and not standardized. As this can directly influence patients' survival, urgent improvement of urological care in this field should be considered. PMID- 29322800 TI - USF1 gene polymorphisms may associate with the efficacy and safety of chemotherapy based on paclitaxel and prognosis in the treatment of ovarian cancer. AB - This study was supposed to investigate the correlation between the functional single nucleotide polymorphisms (SNPs) (rs2516839 and rs3737787) in USF1 gene and the efficacy and safety of paclitaxel-based chemotherapy and prognosis in the treatment of ovarian cancer (OC). In total 100 OC patients were selected and divided into the sensitive group and the resistantgroup according to the tumor response to paclitaxel-based chemotherapy after surgery, and the incidence of observed and recorded toxic reaction. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) method was applied to test the polymorphisms of rs2516839 and rs3737787 in USF1 gene after extraction of DNA. The correlation between USF1 gene polymorphisms and paclitaxel-based chemotherapy resistance was analyzed using Logistic regression analysis. Stratified analysis was used to test the incidence of toxic reaction in OC patients. Cox proportional hazard model was adapted to make a multiple-factor survival analysis. Significant differences exhibited in the genotype and the allele frequencies of rs2516839 between the sensitive and resistant groups, which showed no obvious difference in the genotype and allele frequencies of rs3737787. OC patients carrying the GA+AA genotype had higher incidence of serious toxic reaction than those carrying the GG genotype. Physical status score, tumor type, maximum tumor diameter and rs2516839 were the independent risk factors for the prognosis of OC patients. Taken together, our results suggest that the rs2516839 polymorphism in USF1 gene may associate with the efficacy and safety of paclitaxel-based chemotherapy and prognosis in the treatment of OC. PMID- 29322778 TI - Using Genome Sequence to Enable the Design of Medicines and Chemical Probes. AB - Rapid progress in genome sequencing technology has put us firmly into a postgenomic era. A key challenge in biomedical research is harnessing genome sequence to fulfill the promise of personalized medicine. This Review describes how genome sequencing has enabled the identification of disease-causing biomolecules and how these data have been converted into chemical probes of function, preclinical lead modalities, and ultimately U.S. Food and Drug Administration (FDA)-approved drugs. In particular, we focus on the use of oligonucleotide-based modalities to target disease-causing RNAs; small molecules that target DNA, RNA, or protein; the rational repurposing of known therapeutic modalities; and the advantages of pharmacogenetics. Lastly, we discuss the remaining challenges and opportunities in the direct utilization of genome sequence to enable design of medicines. PMID- 29322801 TI - Paraoxonase activity in sera of patients with non-alcoholic fatty liver disease. AB - The results of our study showed significantly decreased levels of PON1 in patients with chronic liver diseases (controls 185 +/- 14 U/l, NAFLD 160 +/- 15 U/l, chronic hepatitis 99 +/- 18 U/l, cirrhosis 52 +/- 11 U/l). There were significant correlations of PON activities with standard liver function tests (Tab. 1, Ref. 5). PMID- 29322802 TI - Cardiac telocytes as principal interstitial cells for myocardial reparation and regeneration after infarction - our hope. AB - According to our knowledge, this is the first research experiment that focuses on the study of the distribution of c-kit positive cells at the sites of myocardial infarction in human hearts (Fig. 3, Ref. 16). PMID- 29322804 TI - Conservative management of biopsy confirmed high-grade squamous intraepithelial lesions. AB - OBJECTIVES: Follow-up of women with biopsy-confirmed CIN2+ who were either treated immediately with LLETZ or managed conservatively to determine the rates of patients back on routine screening programme after a median of three years in two groups. METHODS: In this retrospective study, 310 patients were involved who had undergone biopsy with result of CIN2+ between January 2011 and December 2014. Depending on the management, i.e. based on whether cytology and colposcopy follow up or immediate treatment were performed, they were divided in two groups. Then the number of patients back on routine screening up to 15/2/2016 as well as the results of last cytology were compared within both groups. RESULTS: A total of 310 women at average age of 30 years met the inclusion criteria. Of them, 230 (74 %) had immediate treatment whereas 80 (26 %) were managed conservatively. There were no statistically significant demographic differences between the two groups. The mean time of follow up was 1.091 days (2.98 years). The patients managed conservatively required more follow-up visits at colposcopy clinic (p<0.001). The last documented cytology in the immediate treatment group was negative in 93 % and low-grade/borderline in 7 % of patients, while in the conservative management group, it was negative in 84 %, low-grade/borderline in 15 % and high-grade in 1 % of patients (p = 0.015). Overall, the proportions of patients who are back on routine screening recall are 96 % and 87.5 % for the immediate treatment and conservatively managed groups, respectively (p=0.022). CONCLUSION: The conservative management of high-grade CIN with cytology and colposcopic follow up is an OPTION in selected group of patients, but it cannot be routinely recommended (Tab. 2, Ref. 20). PMID- 29322803 TI - Is the prevalence of the medication-related osteonecrosis of the jaws underestimated, evaluation in oncological and non-oncological disease. AB - OBJECTIVES: The purpose of this study was to evaluate the prevalence of medication-related osteonecrosis of the jaw in Slovak population and compare the literature findings, whether the prevalence of MRONJ is underestimated. BACKGROUND: Antiresorptive drugs significantly increase quality of life, although during therapy, or in post-treatment period, osteonecrosis of the jaws might occur as a severe adverse effect. Medication-related osteonecrosis of the jaws (MRONJ) is a severe problem that has been observed in the past few years. METHODS: This multi-centric study evaluates the prevalence in Slovak population, assesses the values from 4 largest centres of maxillofacial surgery in Slovakia (1166 patients with MRONJ) and provides the comparison of literature review. RESULTS: Between 2010-2015, there was increasing number of newly diagnosed patients with MRONJ (1166 overall MRONJ patients) annually, except 2012 (mean growth of 123.88 %). This finding was supported by a statistical analysis of the rising tendency of prevalence in literature, where there was a significant difference in prevalence of non-oncologic patients before and after 2010 t(15) = 2.725, p = 0.016. The 6-year prevalence was 1.34 % in population with antiresorptive drugs intake, for osteoporosis 0.47 %, for breast cancer 4.10 %, prostate cancer 3.99 % and multiple myeloma 21.26 %. CONCLUSION: This study considers that there is a significant rising tendency of MRONJ in non-oncological patients, what could be caused by underestimation of the risk for development MRONJ in these patients. There should be a better cooperation and information among dentists and doctors indicating the antiresorptive treatment and strong emphasis on primary prevention before the initial treatment even in non oncological patients (Tab. 5, Fig. 7, Ref. 69). PMID- 29322805 TI - Wound infections after median sternotomy treated by VAC therapy, summary of results, and risk factor analysis. AB - INTRODUCTION: The aim of this study is to summarize results and analyze risk factors for the development of wound infection in heart surgery patients after median sternotomy. METHOD: In this retrospective analysis with assessment of multiple risk factors, we examined 143 patients with infection after median sternotomy treated with VAC therapy from total of 4,650 patients operated in our department from 2012 to 2015. RESULTS: Total of 143 patients developed significant SSI treated by VAC therapy following cardiac surgery. Of these, only 14 patients developed DSWI and one patient was diagnosed with suspected osteomyelitis. BMI, female gender, and use of BIMA proved to be statistically significant risk factors in our study (p < 0.001). The acuteness of operations did not have a statistically significant effect. However, it had a significant effect on the severity of infection (p < 0.01). The severity of infection proved to be a significant prognostic factor for patients' outcome (p < 0.01). CONCLUSION: In our study, BMI, female gender, and use of BIMA (bilateral internal mammary artery) in patients with DM were predictors for the development of SWI. The acuteness of operation did not have a statistically significant effect. However, it had a statistically significant effect on the severity of infection (Tab. 3, Ref. 30). PMID- 29322806 TI - Periodontitis aggravates kidney damage in obese mice by MMP2 regulation. AB - OBJECTIVE: To investigate the effect of periodontitis on the development of kidney damage in obese mice and its possible mechanism. METHODS: C57 BL/6J mice were fed high-fat (HF) or low-fat (LF) diet and then divided into four groups: obesity with periodontitis (HFP), obesity without periodontitis (HFC), normal mice with periodontitis (LFP) and normal mice without periodontitis (LFC). Serum indicators of renal function, namely serum total protein (TP), albumin (ALB), creatinine (Cr) and blood urea nitrogen (UREA) were measured. The histopathological examination of kidney tissues was performed. The expressions of transforming growth factor-beta1 (TGF-beta1), matrix metalloproteinase-2 (MMP2) and tissue inhibitors of metalloproteinases-1 (TIMP1) were detected by immunohistochemistry and real time RT-PCR. RESULTS: Obesity decreased TP and ALB, and increased serum Cr and UREA levels in normal and periodontitis mice groups, as well as induced glomerular and tubulointerstitial pathologic changes. Tubulointerstitial fibrosis was more severe in HFP group. In obese mice, periodontitis caused the downregulation of MMP2, and upregulation of TIMP1 and TGF-beta1 at transcriptional and translational levels. CONCLUSIONS: In obese mice, periodontitis may aggravate pathological changes in the kidney. The possible mechanism might lie in downregulation of MMP2 and upregulation of MMP inhibitor, TIMP1, and TGF-beta1 (Tab. 1, Fig. 4, Ref. 16). PMID- 29322807 TI - Chronic postsurgical pain in mixed surgical population. Does an acute pain service make a difference? AB - OBJECTIVES: To investigate the influence of an Acute Pain Service (APS) on the incidence of chronic postsurgical pain (CPSP). To assess the acute pain intensity as a risk factor for CPSP. The impact of an APS on the incidence of CPSP has not yet been studied. METHODS: Retrospective questionnaire given to randomized cohorts study, performed in two hospitals - Hospital A with an APS and Hospital B without such service. 1444 patients underwent eight different surgical procedures in both hospitals within one year, 175 patients from each hospital were randomized. RESULTS: 208 questionnaires were analysed. There was a significant difference in acute pain intensity in the first 24 hours after surgery. The difference of CPSP incidence between hospitals was not significant (Hospital A nine patients (8.6 %), Hospital B sixteen patients (15.5 %). The patients with CPSP experienced significantly more intensive pain in the first 24 hours and at discharge than patients without CPSP regardless of the hospital. CONCLUSION: The study did not demonstrate the incidence of CPSP was lower in the hospital with an APS despite the lower postoperative pain scores. However there was a noticeable trend toward higher incidence of CPSP in the hospital without an APS. The study demonstrated that APS decreases intensity of an acute postoperative pain and acute pain intensity is a risk factor for CPSP incidence (Tab. 5, Ref. 27). PMID- 29322808 TI - Effects of epidermal growth factor on reduction of the formation of thrombus and vessel wall healing in an experimental rat model. AB - OBJECTIVES: The aim of the current study was to investigate the synergistic effects of epidermal growth factor (EGF) and Enoxaparin in thrombus resolution. METHOD: Forty rats were divided into five groups (n = 8/group). Thrombosis was induced in all groups except the Sham group. Group 1: Sham; Group 2: Phosphate buffered saline; Group 3: Enoxaparin; Group 4: EGF; Group 5: EGF+Enoxaparin. The treatments were applied 2 hours preoperatively, then postoperatively at 48 hours. Rats were sacrificed 7 days after the 2nd injection. Tissue samples were examined with hematoxylin-eosin, trichrome, vascular endothelial growth factors (VEGF), von Villebrand factor (VWF), CD34 and CD68 for histopathological and immunohistochemical analyses. RESULTS: Neovascularisation, recanalization and macrophage accumulation were statistically significantly higher in the EGF+Enoxaparin group than the other groups (p < 0.05), and the volume of thrombus was determined to be significantly lower. Recanalization was found to be higher in the Enoxaparin group than in the other groups. As for the thrombus resolution, statistically significant regress in the EGF+Enoxaparin group (p < 0.05) compared to the other groups was found. Immunohistochemical antibodies were statistically higher in the EGF+Enoxaparin group than in the other groups (p < 0.05). CONCLUSION: The results of this study demonstrate that concomitant use of EGF and Enoxparin has a synergistic effect and contributes significantly to thrombus resolution (Fig. 10, Ref. 35). PMID- 29322809 TI - Effects of 2100 MHz radio frequency radiation on ductus epididymis tissue in rats. AB - PURPOSE: The use of mobile phones is widespread since the beginning of 1990s. A great debate exists about the possible damage that the Radio Frequency - RF radiation from mobile phones exerts on different organs. The objective of this study was to investigate the possible histopathological effects of 2100 MHz RF radiation on rat ductus epididymis tissue using a light microscopy and immunohistochemical method after one or two month exposure. MATERIALS AND METHODS: The study was performed on 36 adult Wistar albino rats. 2100 MHz RF radiation was used with a specific absorption rate (SAR) of 0.36 W/kg for 30 min/day, 6 days per week for one or two months. There were 3 groups (n = 6 for each group): one month RF exposed group, two months RF exposed group, and the control group. RESULTS: At the end of the study, the structural changes in ductus epididymis tissue were evaluated. In both 2100 MHz RF exposed groups, the rat ductus epididymis sperm were not observed in some channels, a reduction in sperm density in some of the channels drew an attention. The loss of connective tissue and edematous areas were observed in cross channel interstitial connective tissue. In addition, it was observed that vascularization was highly increased with respect to the control group in cross-channel interstitial connective tissue. CONCLUSION: 2100 MHz RF exposure resulted in some structural changes in the male genital ducts of rats (Tab. 1, Fig. 5, Ref 20). PMID- 29322810 TI - Therapeutic hypothermia and myocardium in perinatal asphyxia: a microvolt T-wave alternans and Doppler echocardiography study. AB - OBJECTIVES: This is the first study evaluating the predictive value of myocardial performance on arrhythmia and mortality via tissue-Doppler and microvolt T-wave alternans in infants with hypoxic-ischemic encephalopathy treated with therapeutic hypothermia-rewarming. METHODS: The study included 23 term newborns having criteria for hypoxic-ischemic encephalopathy, and 12 controls. Tissue Doppler imaging and T-wave alternans were performed in the first six hours after birth in patients from both groups and after hypothermia-rewarming treatment on the fifth day. RESULTS: The basal T-wave alternans values were higher in patients in lead aVF(p < 0.001) which also correlated with existing acidemia (r = 0.517; p = 0.012). Basal T-wave alternans and post-treatment values of patients were compared in leads V1 (p < 0.001) and aVF (p < 0.001); a significant decrease was found on the fifth day. Moreover, right ventricle diastolic diameter and estimated systolic pulmonary artery pressure of patients in the first 6 hours were higher (p = 0.03, p < 0.001, respectively). Although, the ejection fraction of patients did not decrease, basal values of left and right ventricular systolic and diastolic functions were lower initially, and increased significantly after treatment. CONCLUSION: The global cardiac functions and myocardial performance of newborns with hypoxic-ischemia might be improved with therapeutic hypothermia which can be determined by using T-wave alternans and tissue-Doppler measurements. However, further studies are needed to assess whether these measurements are prognostic in determining the myocardial dysfunction and arrhythmias (Tab. 2, Fig. 3, Ref. 26). PMID- 29322811 TI - Establishment of reverse transcription polymerase chain reaction assay for simultaneous detection of human parainfluenza virus types 1 to 4 in children with influenza like illnesses. AB - OBJECTIVES: The aim of this study was to develop an in-house multiplex reverse transcription polymerase chain reaction (mRT-PCR), which can recognize HPIV1-4 in clinical samples. BACKGROUND: Human parainfluenza virus (HPIV) is one of the major causes of viral respiratory infections and can affect people at any age, especially infants and young children. METHODS: Four sets of specific primers targeting conserved areas of hemagglutinin-neuraminidase (HN) genes of HPIV1-4, were designed and tested with type-related plasmid controls. Specificity and sensitivity of mPCR were tested. One-step mRT-PCR was set up using a viral panel containing 10 respiratory viruses, including HPIVs. One hundred nasopharyngeal samples of respiratory infection patients were tested using the set One-step mRT PCR. RESULTS: The specificity of set mPCR for HPIV1-4 using plasmid positive controls was proved and reaction sensitivity was measured. The specificity of set mRT-PCR was confirmed and 4 and 5 out of 100 clinical samples were HPIV1 and HPIV2 positive, respectively. CONCLUSION: The developed one-step mRT-PCR in this study is an effective and specific assay for clinical diagnosis of HPIV1 to 4 (Tab. 1, Fig. 6, Ref. 28). PMID- 29322812 TI - Adjustment to finger amputation and silicone finger prosthesis use. AB - PURPOSE: Finger amputations are the most common amputations of upper limbs. They influence hand function, general functioning and quality of life. One of the possibilities for rehabilitation after finger amputation is fitting a silicone finger prosthesis. We wanted to evaluate the adjustment to amputation and prosthesis use in patients after finger amputation. METHODS: We included 42 patients with partial or complete single or multiple finger amputation of one hand who visited the outpatient clinic for prosthetics and orthotics at our institute and received a silicone prosthesis. We assessed their adjustment to amputation and prosthesis with the Trinity Amputation and Prosthesis Experience Scales (TAPES). RESULTS: Most of the patients (28, 67%) had a single finger amputated. The average scores on all TAPES subscales (except adjustment to limitation) were above 50% of the maximum possible score. On average, the scores were the highest on the general adjustment and satisfaction with the prosthesis subscales. CONCLUSIONS: Silicone prostheses for finger amputation of upper limb play an important role in the process of adaptation to amputation. They offer aesthetically satisfying results and alleviate social interactions, which influences overall quality of life. Implications for Rehabilitation Silicone prostheses for finger amputation of upper limb offer an aesthetically satisfying result and alleviate problems with social interactions. Their influence on hand function is not optimal, but the prosthesis improves the amputee's quality of life. PMID- 29322813 TI - Opioid drug poisonings in Ohio adolescents and young adults, 2002-2014. AB - CONTEXT: Opioids represent a drug class that adolescents and young adults intentionally misuse and abuse. When taken on their own or with other substances in this manner, opioids pose an increased risk of overdose and potential death. OBJECTIVE: To determine trends of opioid drug poisonings among adolescents and young adults in Ohio from 2002 to 2014 using Poison Control Center (PCC) data. METHODS: Data were obtained from Ohio PCCs from 2002 to 2014 for opioid drug poisonings amongst 10-29 year olds. Trends were evaluated with Poisson regression. Ohio counties with higher opioid drug poisoning rates were identified using age-adjusted resident population estimates. Chi-square tests were conducted to compare these county rates to the Ohio rate. RESULTS: Both unintentional and intentional Ohio PCC opioid drug poisonings peaked in 2009, and there were significant declines through 2014. Almost 40% of intentional opioid drug poisonings were for young adults aged 18-24 years. Suspected suicide poisonings were 64.9% female, misuse poisonings were 54.5% male, and abuse poisonings were 60.1% male. Commonly reported substances included tramadol, heroin, and acetaminophen combinations with hydrocodone or oxycodone. Benzodiazepines and ethanol were the most common substances reported in conjunction with opioids. The top four Ohio counties with significantly higher opioid drug poisoning rates than the state average in 2014 were Hamilton, Mahoning, Butler, and Fairfield. CONCLUSION: This study enhances the understanding of Ohio's opioid epidemic so that future prevention efforts and legislation can better target needed resources. Both males and females would benefit from opioid education early in their lives. PMID- 29322814 TI - Contraceptive counselling and care: a personalized interactive approach. AB - AIM: Various studies have shown deficiencies and gaps in contraceptive counselling and care (CCC) in Europe as well as globally. These deficiencies include the lack of personalized communication integrating the individual woman's needs and her biopsychosocial profile into the interaction with the Health Care Professional (HCP). OBJECTIVE: Based on the standards summarized in the literature and based on the concept of interactive shared decision, we developed a structured approach as a proposal for CCC. RESULT: Integrating principles of patient-centred communication and trustful relationship, we propose a stepwise process of interactive counselling and care allowing women to express their needs and priorities, then help the HCP by taking into the account the biopsychosocial profile of the woman to exclude methods together with the woman which do not correspond to her needs or which are contraindicated; then look for additional benefits of contraceptive methods for the individual woman to finally come to a shared transparent decision. CONCLUSION: This personalized interactive counseling approach may serve as an orientation for HCPs to find their individual way to tailor contraception to the individual woman. PMID- 29322816 TI - Correction to: Garratt and Turner, Progesterone for preventing pregnancy termination after initiation of medical abortion with mifepristone. PMID- 29322815 TI - Bioinformatic analysis of PFN2 dysregulation and its prognostic value in head and neck squamous carcinoma. AB - AIM: This study aimed to identify PFN2 expression profile, its prognostic value and the mechanism of its dysregulation in head and neck squamous cell carcinoma (HNSC). MATERIALS & METHODS: Bioinformatic analysis was performed using data in the Gene Expression Omnibus Datasets, Human Protein Atlas and The Cancer Genome Atlas-HNSC. RESULTS: PFN2 was upregulated in HNSC than in normal head and neck tissues. High PFN2 expression independently predicted poor overall survival in primary HNSC (hazard ratio: 1.548, 95% CI: 1.174-2.042; p = 0.002). Fourteen percent of HNSC cases had PFN2 amplification. PFN2 DNA methylation was negatively correlated with its mRNA expression (Pearson's r = -0.713). CONCLUSION: High PFN2 expression might serve as a valuable predictor for poor overall survival of HNSC. DNA amplification and hypomethylation might be two mechanisms of PFN2 dysregulation. PMID- 29322818 TI - Evolution of pH buffers and water homeostasis in eukaryotes: homology between humans and Acanthamoeba proteins. AB - AIM: This study intended to trace the evolution of acid-base buffers and water homeostasis in eukaryotes. Acanthamoeba castellanii was selected as a model unicellular eukaryote for this purpose. Homologies of proteins involved in pH and water regulatory mechanisms at cellular levels were compared between humans and A. castellanii. MATERIALS & METHODS: Amino acid sequence homology, structural homology, 3D modeling and docking prediction were done to show the extent of similarities between carbonic anhydrase 1 (CA1), aquaporin (AQP), band-3 protein and H+ pump. Experimental assays were done with acetazolamide (AZM), brinzolamide and mannitol to observe their effects on the trophozoites of A. castellanii. RESULTS: The human CA1, AQP, band-3 protein and H+-transport proteins revealed similar proteins in Acanthamoeba. Docking showed the binding of AZM on amoebal AQP-like proteins. Acanthamoeba showed transient shape changes and encystation at differential doses of brinzolamide, mannitol and AZM. Conclusion: Water and pH regulating adapter proteins in Acanthamoeba and humans show significant homology, these mechanisms evolved early in the primitive unicellular eukaryotes and have remained conserved in multicellular eukaryotes. PMID- 29322817 TI - Endovascular coil embolization and stenting for the treatment of iatrogenic right internal mammary artery injury: A case report. AB - A 54-year-old Chinese woman presented with a 10-year history of repeated paroxysmal palpitations. She was diagnosed with paroxysmal supraventricular tachycardia by 12-lead electrocardiogram and was advised to undergo catheter based radiofrequency ablation. During the procedure, a rare complication occurred that was diagnosed as a right internal mammary artery penetrating injury. After appropriate emergency treatment with arterial embolization and membrane-covered stent implantation, the patient was out of immediate danger of haemorrhaging. Follow-up computed tomography angiography of the subclavian artery at 3 months after she was discharged from hospital revealed stent-graft patency with no evidence of in-stent thrombosis or stent stenosis. No problems were observed at the 6-month follow-up visit. PMID- 29322819 TI - A novel cyclohexenone from Trachyspermum roxburghianum. AB - A novel cyclohexenone, roxydienone (1), together with 13 known compounds (2-14), were isolated from the seeds of Trachyspermum roxburghianum. The structures of these compounds were established on the basis of their 1D and 2D NMR spectroscopic data. Compounds 1, 2, 7-9 and 14 showed cytotoxicity against NCI H187 cell line while compounds 1 and 9 showed cytotoxicity against KB cell line. In addition, only compound 13 showed cytotoxicity against MCF-7 cell line. PMID- 29322820 TI - Reevaluation of the Critically Ill Patients With Nonconvulsive Status Epilepticus by Using Salzburg Consensus Criteria. AB - OBJECTIVE: We aimed to assess the usefulness of the Salzburg Consensus Criteria (SCC) for determining the prognosis of critically ill patients with nonconvulsive status epilepticus (NCSE). METHODS: We retrospectively reviewed consecutive patients with unconsciousness followed up in the intensive care unit (ICU). Three clinical neurophysiologists, one of them blinded to clinical and laboratory data, reevaluated all EEG data independently and determined NCSE according to SCC. The incidence of NCSE and ictal EEG patterns and their relationship to clinical, laboratory, neuroradiological, and prognostic findings were assessed. RESULTS: A total of 107 consecutive patients with mean age 68.2 +/- 15.3 years (57 females) were enrolled in the study. Primary neuronal injury was detected in 59 patients (55.7%). Thirty-three patients (30.8%) were diagnosed as NCSE. While authors decided to treat 33 patients (30.8%), 32 patients (29.9%) had been treated in real-life evaluation. Clinical and EEG improvement were detected in 12 patients (11.3%) in real-life treatment group showing correlation with lack of intubation and ICU stay related to postsurgical event. Rate of mortality (45.8%) was high showing association with systemic-metabolic etiology, severity of coma and presence of "plus" modifiers in the EEG. CONCLUSION AND SIGNIFICANCE: Our findings suggest that SCC is highly compatible with clinical practice in the decision for treatment of patients with NCSE. The presence of "plus" modifiers in the EEG was found to be associated with mortality in these patients and was a significant marker for the high mortality rate. PMID- 29322821 TI - Moderately hypofractionated prostate external-beam radiotherapy: an emerging standard. AB - Research over recent years has demonstrated that curative external-beam radiotherapy can be safely and efficaciously delivered with roughly half the number of treatments which was previously considered standard. We review the data supporting this change in practice, methods for implementation, as well as emerging future directions. PMID- 29322822 TI - Assessment of aided language comprehension and use in children and adolescents with severe speech and motor impairments. AB - There is limited knowledge about aided language comprehension and use in children who use aided communication and who are considered to have a relatively good comprehension of spoken language. This study's purpose was to assess their aided language skills. The participants were 96 children and adolescents who used communication aids (aided group) and 73 children and adolescents with natural speech (reference group), aged 5 to 15 years. All of the participants who used aided communication were regarded by their teachers or professionals as having age-appropriate language comprehension. All of the participants completed (a) standardized tests of visual perception, non-verbal reasoning, and comprehension of spoken language, and (b) tasks designed for this study that measured comprehension and production of graphic utterances through communicative problem solving. Using their own communication systems, the participants achieved an average of 72% correct on the graphic symbol comprehension task items, and 63% on the expressive tasks. The participants with natural speech achieved an average of 88% correct on comprehension items, and 93-96% accuracy on production items. The differences between groups were significant on all the tasks and standardized tests. There was considerable variation within the group of participants who used aided communication, and the results reveal a need to develop instruments with norms for aided language competence that can inform the implementation of interventions to support aided language development. PMID- 29322823 TI - Use of space and behavior of weaned piglets kept in enriched two-level housing system. AB - In this study, the possibility of introducing an elevated platform to a piglet pen was explored as a way of increasing available space and creating functional areas. On the platform, nine different manipulable materials were offered. In four batches, 40 weaned piglets were kept for five weeks in the two-level pen. Video recordings were taken two days per week. In the afternoon, more piglets were on the platform than in the morning or at night (7.2 +/- 0.1 vs. 4.9 +/- 0.1 vs. 0.6 +/- 0.1 piglets/5 minutes; p < .05). The area under the platform was preferred more in the morning and at night than in the afternoon (18.5 +/- 0.1 vs. 21.6 +/- 0.2 vs. 12.5 +/- 0.1 piglets/5 minutes; p < .05). Up to 36 piglets were counted there simultaneously, mainly in the recumbent position. On and under the platform, air velocity and ammonia concentration were within the recommended ranges. The study concluded that a two-level pen is a feasible option to increase space allowance and to create functional areas in a piglet pen. PMID- 29322825 TI - Blood Glucose Monitoring Data Should Be Reported in Detail When Studies About Efficacy of Continuous Glucose Monitoring Systems Are Published. AB - Recently, two clinical trials about a "sensor-based flash glucose monitoring system" and its efficacy in reducing time in hypoglycemia were published. Interestingly, patients spent more time at low glucose concentrations in these studies than in other studies related to the efficacy of real-time continuous glucose monitoring (rtCGM). Although it is possible that the study populations differed from those in other studies, another potential explanation is that the CGM system used in these two studies had a negative glucose measurement bias. Such a negative bias was reported in recent literature, suggesting that the CGM system may inaccurately indicate hypoglycemia. Reporting blood glucose monitoring data would help to interpret the CGM data at least in the context of time spent in various glucose ranges as a parameter with which quality of diabetes therapy is measured. PMID- 29322824 TI - Detection and analysis of variants of JC polyomavirus in urine samples from HIV-1 infected patients in China's Zhejiang Province. AB - Objectives Human JC polyomavirus (JCPyV) infection has an increased risk of developing progressive multifocal leukoencephalopathy (PML). Different JCPyV subtypes differ in the virulence with which they cause PML. Currently, the JCPyV infection status and subtype distribution in patients with human immunodeficiency virus-1 (HIV-1) in China are still unclear. This study aimed to investigate the epidemiology and subtype distribution of JCPyV in HIV-1-infected patients in China. Methods Urine samples from 137 HIV-1-infected patients in Zhejiang Province in China were tested for the presence of JCPyV DNA. The detected VP1 sequences were aligned and analysed using BioEdit and MEGA software. Results Among urine samples from HIV-1-infected patients, 67.2% were positive for JCPyV DNA (92/137). Primarily, the type 7 strains of JCPyV were detected, among which 45.5% (15/33) were subtype 7A, 30.3% (10/33) were 7B, and 24.2% (8/33) were 7C. Six nucleotide mutations, as well as one amino acid substitution, were isolated from the patients. Conclusions Urine samples from HIV-1-infected patients from Zhejiang Province show a high JCPyV infection rate. The most common JCPyV strains are subtypes 7A, 7B, and 7C. PMID- 29322826 TI - Evaluation of the eighth American Joint Committee on Cancer staging system for malignant melanoma of the skin. AB - AIM: To validate the changes among the American Joint Committee on Cancer (AJCC) eighth staging system for cutaneous melanoma. METHODOLOGY: Surveillance, Epidemiology and End Results database (2004-2014) was queried. Kaplan-Meier survival estimates were evaluated according to both AJCC seventh and eighth systems. RESULTS: Overall survival was assessed according to the two editions and p-values for overall trend were significant (p < 0.001) for all scenarios. Notably for pathologically staged patients, the mean survival for stage IIC was lower than that for stage IIIA and IIIB. Likewise, among clinically staged patients the mean survival for stage IIC was lower than that for stage III (these findings were identical among both editions). CONCLUSION: AJCC eighth system holds comparable performance to AJCC seventh system. PMID- 29322828 TI - Population survey and management strategies of free-roaming dogs (Canis familiaris) on Saipan, Commonwealth of the Northern Mariana Islands. AB - The island of Saipan, Commonwealth of the Northern Mariana Islands, is populated by free-roaming dogs who were introduced during World War II. The local nonhuman animal control agency manages this population; however, the demographic information and public perception of this population remain unknown. To characterize the free-roaming dog population, an island-wide survey on Saipan was conducted. Photographic, mark-recapture data were used to estimate the population size per land type. Age, sex, sociality, and behavior per land type were documented and associations between these variables were tested using G tests. The effects of land type and urbanization on dog abundance were also analyzed. Lastly, in-person surveys provided data on the public perception of free-roaming dogs. Four main findings are reported: (a) The population size of free-roaming dogs on Saipan is estimated at 21,316. (b) Most dogs encountered were sentry adults. (c) Dog abundance increased with urbanization level and was highest in urban areas. (d) The public perceived free-roaming dogs as a health concern and suggested the implementation of leash laws and sheltering initiatives. This article discusses potential and existing population management strategies for free-roaming dogs on Saipan. PMID- 29322829 TI - Chemical composition and antimicrobial activity of the essential oils from flowers and leaves of Grindelia integrifolia DC. AB - Essential oils from flowers and leaves of Grindelia integrifolia DC. were investigated for the first time in terms of chemical composition and antimicrobial activity. The GC-FID/MS analysis allowed for the identification of 58 and 72 volatiles, comprising 92.4 and 90.1% of the oils, respectively. The major components of the flower oil were alpha-pinene (34.9%) and limonene (13.1%), while myrcene (16.9%), spathulenol (12.3%), beta-eudesmol (11.9%) and limonene (10.1%) dominated among the leaf volatiles. The antimicrobial activity, evaluated against 12 selected bacteria and fungus, was found moderate, with the strongest effect of both oils observed against C. albicans (MIC = MBC: 0.63 and 0.31 mg/mL for flower and leaf oil, respectively). PMID- 29322827 TI - Hypofractionated volumetric modulated arc therapy in ductal carcinoma in situ: toxicity and cosmetic outcome from a prospective series. AB - OBJECTIVE: Hypofractionated radiotherapy in early stage breast cancer is an effective adjuvant treatment, but there is a lack of randomized data for patients with ductal carcinoma in situ (DCIS). The aim of this study is the evaluation of skin toxicity and cosmesis, and early clinical outcome of DCIS patients enrolled in an institutional Phase II trial of hypofractionated breast irradiation. METHODS: 137 DCIS patients were enrolled in the trial. All patients underwent volumetric modulated arc therapy (VMAT) to the whole breast with a total dose of 40.5 Gy in 15 fractions over 3 weeks, without tumour bed boost. Acute and late skin toxicities were recorded. Cosmetic outcomes were assessed as excellent/good or fair/poor. Early clinical outcome was reported. RESULTS: Median age was 58 y.o. (range 30-86). The median follow-up time was 22 months (range 6-45). At the end of the radiotherapy, skin toxicity was grade G1 in 56% of the patients, G2 in 15%, no patients presented G3 toxicity. In the range of 3-9 months of follow-up, the skin toxicity was G1 in 28% of patients, no G2-G3 cases; cosmetic outcome was good/excellent in 95% of patients. In the follow-up interval of 9-24 months, the skin toxicity was G1 in 12% of patients, no G2-G3 toxicity; cosmetic outcome was good/excellent in 96% of patients. After an early evaluation of clinical outcomes, 5 patients (3.6%) presented an in-breast recurrence. CONCLUSION: Hypofractionated radiotherapy using VMAT is a viable option for DCIS. A longer follow-up is needed to assess clinical outcomes and late toxicity. Advances in knowledge: The use of hypofractionated VMAT is dosimetrically feasible for treating breast DCIS. PMID- 29322830 TI - Waiting for multidisciplinary chronic pain services: A prospective study over 2.5 years. AB - Despite many patients waiting more than 2 years for treatment at publicly funded multidisciplinary chronic pain services, waitlist studies rarely examine beyond 6 months. We investigated psychological adjustment and health-care utilisation of individuals ( N = 339) waiting <=30 months for appointments at an Australian tertiary pain unit. Outcomes were relatively stable during the first 6 months, but long-term deteriorations in pain-related interference, distress and pain acceptance were evident, albeit with sex differences. Sexes also differed in uptake of new treatments. Medication use increased over time, but pain severity and medication relief did not. Results suggest that early intervention is important, especially for women. PMID- 29322831 TI - Spiritual Health and Life-Orientation Measure: Psychometric properties of the Brazilian Portuguese version. AB - This study aimed to translate into Brazilian Portuguese and evaluate the main psychometric properties from Spiritual Health and Life-Orientation Measure in a sample of 487 students aged 9-15 years in Southern Brazil. Spiritual Health and Life-Orientation Measure is divided into Ideals and Lived Experience sections and showed high internal consistency reliability (Cronbach's alpha = 0.94). Comparison of mean values between age showed a tendency to decrease spirituality scores with increasing age. Discriminate validity of mean scores between groups of atheists, "spiritual, but not religious," and religious was significant in all domains (0.026 < p < 0.001). Spiritual Health and Life-Orientation Measure presents adequate psychometric properties and may contribute to study spirituality in children and adolescents. PMID- 29322832 TI - Corrigendum. PMID- 29322833 TI - Genitourinary involvement of lymphomas on FDG-PET. AB - Primary extranodal lymphomatous involvement of the genitourinary tract is rare and secondary extranodal involvement in disseminated disease occurs more frequently. Imaging of metabolic activity with 2-(fluorine-18) fluoro-2-deoxy-d glucose (FDG) used in PET facilitates the identification of these extranodal sites of disease, particularly in the absence of structural lesions on conventional imaging modalities. Primary extranodal lymphoma affecting the genitourinary system is often caused by high-grade Non-Hodgkin's Lymphoma (NHL) with the most common subtype being diffuse large B-cell lymphoma (DLBCL). Although rare, the incidence of extranodal lymphoproliferative disease is increasing and a delay in diagnosis holds a poor prognosis. Familiarity with benign and physiological causes of FDG uptake, particularly due to the urinary tracer excretion is crucial in identifying sites of lymphomatous involvement in the genitourinary system. Additionally, non-lymphomatous malignancies are usually treated surgically, whereas lymphoma is primarily treated with chemotherapy and/or radiotherapy. Therefore, accurate identification and staging together with histological confirmation significantly impacts management of these patients. This article serves to review and illustrate the imaging findings on FDG-PET/CT of primary extranodal lymphoma affecting the genitourinary system. PMID- 29322834 TI - A tertiary centre experience of thoracic CT and cardiac MRI scanning in the presence of a reveal LINQ insertable cardiac monitoring system: a case series review of artefact, patient safety and data preservation. AB - OBJECTIVE: At our tertiary cardiothoracic centre, cardiac MRI and thoracic CT scans are performed in patients with implanted LINQ devices. The degree of foreign body artefact associated with the LINQ device, and its clinical importance, has not previously been assessed. A case series review was therefore performed with a simultaneous review of patient safety and data loss events, secondary to the MRI environment. METHODS: A local database search identified LINQ device patients who underwent thoracic CT or cardiac MRI scans between March 2014 and December 2016. Images were reviewed by two radiologists, recording the presence of subcutaneous and intrathoracic artefact, and its clinical significance. Furthermore a specialist in cardiac rhythm management reviewed all LINQ data downloads undertaken before and after MRI scanning, and a search of the trust incident reporting system was performed. RESULTS: Minor subcutaneous artefact was present on all scans. Intrathoracic artefact was observed in 25.6% of thoracic CT scans and 33.3% of cardiac MRIs; however no clinically significant artefact was observed. Device downloads were only performed by 53.8% of patients prior to their MRI scan and 56.5% after their MRI scan. No adverse patient safety or data loss events were noted. CONCLUSION: The LINQ device does not produce clinically significant artefact, even when artefact extends into the intrathoracic space, which occurs in a third of MRIs and a quarter of CTs. MRI scanning of the LINQ device is safe with no evidence of inappropriate data loss. Advances in knowledge: This is the first published case series of CT and MRI scanning in LINQ patients and the first performed quantification of artefact related to the LINQ device. PMID- 29322835 TI - Toxic epidermal necrolysis versus cutaneous Graft-Versus-Host Disease in a hematopoietic stem cell transplant recipient: the role of elafin. PMID- 29322836 TI - Activation studies with amines and amino acids of the beta-carbonic anhydrase encoded by the Rv3273 gene from the pathogenic bacterium Mycobacterium tuberculosis. AB - The activation of a beta-class carbonic anhydrase (CAs, EC 4.2.1.1) from Mycobacterium tuberculosis, encoded by the gene Rv3273 (mtCA 3), was investigated using a panel of natural and non-natural amino acids and amines. mtCA 3 was effectively activated by D-DOPA, L-Trp, dopamine and serotonin, with KAs ranging between 8.98 and 12.1 uM. L-His and D-Tyr showed medium potency activating effects, with KAs in the range of 17.6-18.2 uM, whereas other amines and amino acids were relatively ineffective activators, with KAs in the range of 28.9-52.2 uM. As the physiological roles of the three mtCAs present in this pathogen are currently poorly understood and considering that inhibition of these enzymes has strong antibacterial effects, discovering molecules that modulate their enzymatic activity may lead to a better understanding of the factors related to the invasion and colonisation of the host during Mycobacterium tuberculosis infection. PMID- 29322838 TI - Chronic myelomonocytic leukemia with central nervous system involvement. PMID- 29322837 TI - Association of advanced glycation end products, evaluated by skin autofluorescence, with lifestyle habits in a general Japanese population. AB - Objective Accumulation of advanced glycation end products (AGEs) occurs during normal aging but markedly accelerates in people with diabetes. AGEs may play a role in various age-related disorders. Several studies have demonstrated that skin autofluorescence (SAF) reflects accumulated tissue levels of AGEs. However, very few studies have investigated SAF in the general population. The purpose of the present study was to more thoroughly evaluate the potential association among SAF, chronological age, and lifestyle habits in the general population. Methods A large cross-sectional survey of 10,946 Japanese volunteers aged 20 to 79 years was conducted. Volunteers completed a self-administered questionnaire and underwent SAF measurement on their dominant forearms. The associations of SAF with age and lifestyle habits were analyzed using a multiple stepwise regression analysis. Results Age was independently correlated with SAF. Lifestyle habits such as physical activity, nonsmoking, adequate sleep, low mental stress level, eating breakfast, and abstaining from sugary food were each independently associated with lower SAF. Conclusions SAF was associated with age and healthy lifestyle habits in this general Japanese population. The present study suggests that SAF measurement is a convenient tool for evaluating habitual lifestyle behaviors and may have potential for preventative health education. PMID- 29322839 TI - Feasibility study of a human papillomavirus E6 and E7 oncoprotein test for the diagnosis of cervical precancer and cancer. AB - Objective To evaluate the clinical value of human papillomavirus (HPV) E6 and E7 oncoprotein (HPV E6/E7) detection in the early screening of cervical cancer. Methods This prospective study evaluated all patients with suspected cervical intraepithelial neoplasia (CIN) as identified by the presence of at least one positive indicator from a ThinPrep cytologic test (TCT) and/or a Hybrid Capture 2 (HC2) HPV DNA test. The levels of E6/E7 oncoproteins were determined using Western blot analysis. The diagnostic value of the HPV E6/E7 protein assay was compared with the clinical diagnosis from TCT, HC2 and the gold standard of cervical biopsy histology. Results A total of 450 patients were enrolled in the study and based on histological findings, 102 patients were diagnosed with CIN1 (22.7%), 241 with CIN2 (53.6%), 96 with CIN3 (21.3%) and 11 with squamous cell carcinoma (2.4%). For a diagnosis of CIN2+, although the sensitivity of the HPV E6/E7 assay was lower than HC2 (65.5% versus 96.6%, respectively), the specificity was higher (38.2% versus 5.9%, respectively). The sensitivity of the HPV E6/E7 assay was higher than TCT (65.5% versus 36.2%, respectively). Conclusion Measuring HPV E6/E7 oncoprotein levels is a potential new biomarker for HPV type 16. PMID- 29322841 TI - The effect of lycopene on cytochrome P450 isoenzymes and P-glycoprotein by using human liver microsomes and Caco-2 cell monolayer model. AB - Lycopene is widely used as a dietary supplement. However, the effects of lycopene on cytochrome P450 (CYP) enzymes or P-glycoprotein (P-gp) are not comprehensive. The present study was performed to investigate the effects of lycopene on the CYP enzymes and P-gp activity. A cocktail method was used to evaluate the activities of CYP3A4, CYP2C9, CYP2C19, CYP2D6 and CYP2E1. Caco-2 cell monolayer model was carried out to assay lycopene on P-gp activity. The results indicated that lycopene had a moderate inhibitory effect on CYP2E1, with IC50 value of 43.65 MUM, whereas no inhibitory effects on CYP3A4, CYP2C19, CYP2D6 and CYP2E1, with IC50 values all over 100 MUM. In addition, lycopene showed almost no inhibitory effect on rhodamine-123 efflux and uptake (p > .05), indicated no effects on P-gp activity. In conclusion, there should be required attention when lycopene are coadministered with other drugs that are metabolised by CYP2E1. PMID- 29322840 TI - Biochemical characterisation of a Kunitz-type inhibitor from Tamarindus indica L. seeds and its efficacy in reducing plasma leptin in an experimental model of obesity. AB - A trypsin inhibitor isolated from tamarind seed (TTI) has satietogenic effects in animals, increasing the cholecystokinin (CCK) in eutrophy and reducing leptin in obesity. We purified TTI (pTTI), characterised, and observed its effect upon CCK and leptin in obese Wistar rats. By HPLC, and after amplification of resolution, two protein fractions were observed: Fr1 and Fr2, with average mass of [M + 14H]+ = 19,594,690 Da and [M + 13H]+ = 19,578,266 Da, respectively. The protein fractions showed 54 and 53 amino acid residues with the same sequence. pTTI presented resistance to temperature and pH variations; IC50 was 2.7 * 10-10 mol.L 1 and Ki was 2.9 * 10-11 mol.L-1. The 2-DE revealed spots with isoelectric points between pH 5 and 6, and one near pH 8. pTTI action on leptin decrease was confirmed. We conclude that pTTI is a Kunitz trypsin inhibitor with possible biotechnological health-related application. PMID- 29322842 TI - CD133 expression and MYCN amplification induce chemoresistance and reduce average survival time in pediatric neuroblastoma. AB - Objectives Neuroblastoma (NB) is the most common pediatric solid tumor derived from the sympathetic nervous system. MYCN is amplified in nearly half of patients with NB, and its association with rapid disease progression and poor outcome is controversial. Characterization of cancer stem cells (CSCs) in NBs has been rarely studied. This study was performed to determine whether MYCN and CD133+ CSCs are associated with chemotherapy resistance and the survival time of patients with NB. Methods Fifty patients with an unequivocal pathological diagnosis of NB were recruited. MYCN expression levels were measured before therapy. CSCs were derived and their multipotency tested by directed differentiation. The patients' responses to chemotherapy and average survival time were compared among the groups as follows: CD133+, CD133-, MYCN amplification >=5 times (i.e. MYCN>=5), MYCN<5, CD133+ plus MYCN>=5, and CD133- plus MYCN<5. Results CD133+ CSCs differentiated into neuron-like cells. CD133+ patients had a significantly poorer response to chemotherapy than did CD133- patients. CD133+ plus MYCN>=5 patients had a significantly shorter average survival time than did CD133- plus MYCN<5 patients. Conclusions CD133+ CSCs are chemoresistance. CD133 expression and MYCN amplification can be used together as a prognostic indicator of disease outcome. PMID- 29322843 TI - Immunotherapy for brain tumors: understanding early successes and limitations. AB - INTRODUCTION: Adverse effects and toxicities related to standard treatments for brain tumors significantly reduce patients' quality of life. Although most immunotherapy approaches for solid tumors have not been successful, several early phase clinical trials are beginning to reveal a potential role for immunotherapy in the treatment of brain tumors. In particular, methods that activate the innate immune system and induce a polyclonal anti-cancer response have demonstrated that brain tumors are susceptible to immune-mediated tumor destruction. Compared with conventional therapies, modulation of the immune system may improve both survivorship and quality of life during and following treatment. Areas covered: An overview of mechanisms of immunotherapy in the context of current treatments for adult and pediatric brain tumors is provided. Results from recent clinical trials will be discussed, focusing on the favorable safety and efficacy profiles of immunotherapeutics. Expert commentary: Although it is too early to judge the long-term safety of immunotherapy for the treatment of patients with brain tumors, early results suggest that these drugs are well-tolerated and may improve survival and quality of life. Importantly, approaches that activate an anti-tumor immune response lay the framework for iterative development of immunotherapies that can reliably treat patients with brain tumors. PMID- 29322844 TI - Among middle-aged adults, snoring predicted hypertension independently of sleep apnoea. AB - Objective While the link between obstructive sleep apnoea (OSA) and hypertension is well established, the relationships between snoring, OSA, and hypertension remain unclear. This study aimed to evaluate the association between hypertension and snoring independently of OSA. Methods Adults with sleep difficulties underwent a one-night polysomnographic sleep assessment, including a thorough assessment of apnoea and snoring. Upon waking, blood pressure was measured, the measurement repeated after 15 min, in a resting position. Anthropometric data were recorded. Hypertension was defined as blood pressure >=140/90 mmHg or the use of antihypertensive medications. Results The study enrolled 181 adults (mean age 48.8 years; 119 males). Snoring, apnoea, blood pressure and anthropometric dimensions were highly associated. Patients with hypertension had higher levels of snoring and apnoea, as well as indicators of excess weight. Snoring was the most robust predictor of hypertension. Conclusions Snoring is a risk factor for hypertension independently of apnoea and anthropometric dimensions. While the presence of snoring is not able to replace a thorough polysomnographic evaluation of the apnoea-hypopnoea index and OSA, snoring as an acoustic signal is easily detectable. The early identification and management of snoring may reduce cardiovascular risk. PMID- 29322846 TI - PI3K/AKT/mTOR pathway in multiple myeloma: from basic biology to clinical promise. AB - Multiple myeloma (MM), a cancer of terminally differentiated plasma cells, is the second most common hematological malignancy. The disease is characterized by the accumulation of abnormal plasma cells in the bone marrow that remains in close association with other cells in the marrow microenvironment. In addition to the genomic alterations that commonly occur in MM, the interaction with cells in the marrow microenvironment promotes signaling events within the myeloma cells that enhances survival of MM cells. The phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) is such a pathway that is aberrantly activated in a large proportion of MM patients through numerous mechanisms and can play a role in resistance to several existing therapies making this a central pathway in MM pathophysiology. Here, we review the pathway, its role in MM, promising preclinical results obtained thus far and the clinical promise that drugs targeting this pathway have in MM. PMID- 29322845 TI - Medication disposal practices: Increasing patient and clinician education on safe methods. AB - Recent research suggests that the nation's water supply is contaminated with trace pharmaceuticals that exert a negative environmental and public health impact. Incorrect medication disposal methods (e.g. flushing medications down the toilet or drain) are a significant factor contributing to the presence of medication compounds in the aquatic environment. In this commentary, we provide a summary of the existing data on pharmaceuticals in the nation's water as well as the role of improper medication disposal methods on water contamination. We discuss statistics on improper medication disposal practices among patients and clinicians as well as recent advances in proper medication disposal methods as a solution to this problem. Currently, many patients and clinicians are not aware of proper medication disposal practices. We summarize the importance of patient and clinician education in advancing environmental-safe medication disposal methods. PMID- 29322847 TI - Tissue expanders with a focus on extremity reconstruction. AB - INTRODUCTION: Acute traumatic or surgical wounds that cannot be primarily closed often cause substantial morbidity and mortality. This often leads to increased costs from higher material expenses, more involved nursing care, and longer hospital stays. Advancements in soft tissue expansion has made it a popular alternative to facilitate early closure without the need for more complicated plastic surgical procedures. Areas covered: In this review, we briefly elaborate on the history and biomechanics of tissue expansion and provide comprehensive descriptions of traditional internal tissue expanders and a variety of contemporary external tissue expanders. We describe their uses, advantages, disadvantages, and clinical outcomes. The majority of articles reviewed include case series with level IV evidence. Outcome data was collected for studies after 1990 using PubMed database. Expert commentary: An overall reduction in cost, time to-wound closure, hospital length-of-stay, and infection rate may be expected with most tissue expanders. However, further studies comparing outcomes and cost effectiveness of various expanders may be beneficial. Surgeons should be aware of the wide array of tissue expanders that are commercially available to individualize treatment based on thorough understanding of their advantages and disadvantages to optimize outcomes. We predict the use of external expanders to increase in the future and the need for more invasive procedures such as flaps to decrease. PMID- 29322848 TI - Inpatient satisfaction at different public sector hospitals of a metropolitan city in Pakistan: a comparative cross-sectional study. AB - OBJECTIVE: To observe inpatient satisfaction at different public sector hospitals of Karachi, Pakistan. METHODS: A cross sectional study was carried out during 2010-2012 in four major public sector hospitals of Karachi. A total of 710 patients completed the study. Responses were gathered in a self-structured questionnaire that comprised of four dimensions of satisfaction with doctor, staff, administration and treatment. Average Score of each dimension was taken and compared using one way analysis of variance. RESULT: Satisfaction with doctors, staff and administration of provincial and federal hospitals were comparatively similar (P > 0.05). However, satisfaction with treatment significantly differed in all four hospitals (P < 0.0001). Highest satisfaction with treatment was observed among inpatients of hospital running by medical institute (P < 0.0001). Comparison with respect to different departments revealed significant difference for treatment satisfaction of medicine and surgery units. Patients who were admitted from emergency mode acquired lowest satisfaction in all aspects. CONCLUSION: Response of inpatients from public sector hospitals showed satisfaction with healthcare personnel and related administration. However, treatment dimension needs to be improved to get more satisfaction. PMID- 29322849 TI - Safety profile of lenalidomide in patients with lower-risk myelodysplastic syndromes without del(5q): results of a phase 3 trial. AB - : The safety profile of lenalidomide use in lower-risk myelodysplastic syndromes (MDS) patients with del(5q) is well-established, but less is known in non-del(5q) patients. We provide safety data from a randomized, phase 3 trial evaluating lenalidomide in 239 patients with lower-risk non-del(5q) MDS ineligible/refractory to erythropoiesis-stimulating agents (ESAs). Compared with placebo, lenalidomide was associated with a higher incidence of grade 3-4 treatment-emergent adverse events (TEAEs; 86% vs. 44%), but not risk of infection (p = .817) or hemorrhagic events (p = 1.000). Grade 3-4 non-hematologic TEAEs were rare (the incidence of grade 3-4 pneumonia, e.g. was 5.6% in the lenalidomide group and 2.5% in the placebo group). Common grade 1-2 non hematologic TEAEs did not require dose modifications or treatment discontinuation. Acute myeloid leukemia and second primary malignancies incidence was similar across treatment groups. Lenalidomide had a predictable and manageable safety profile in lower-risk non-del(5q) MDS patients ineligible/refractory to ESAs. Guidance on managing lenalidomide-related TEAEs is provided to help maintain patients on therapy to achieve maximum clinical benefit. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01029262. PMID- 29322850 TI - Clinical significance of intrapancreatic choledochal cyst excision in surgical management of type I choledochal cyst. AB - Objective To investigate the effectiveness of intrapancreatic choledochal cyst excision in treating type I choledochal cyst, and increase understanding of the need for thorough surgical management of the disease. Methods Primary and secondary (including multiple) surgical cases, treated between 2005 and 2015, were retrospectively analysed, and follow-up data of post-treatment effectiveness to date were reviewed. Differences in curative effects were compared between whole and partial excision of the choledochal cyst. Results Out of 350 cases, patients with whole excision of the choledochal cyst ( n = 272) experienced no associated symptoms in the long-term (3/272 [1.1%] experienced stomach ache or fever). Patients with partial resection of the choledochal cyst ( n = 78) developed associated symptoms, including new cyst, calculus of the bile duct (51/78 [65.4%]), and carcinogenesis (11/78 [14.1%]) in the residual intrapancreatic biliary duct. Post-treatment clinical manifestations were significantly different between patients with partial resection versus whole excision of the choledochal cyst ( P<0.05). Conclusion Surgical re-excision should be considered in patients with a residual intrapancreatic portion of the choledochal cyst due to prior incomplete surgery, regardless of clinical symptoms. PMID- 29322851 TI - Clinical and virological implications of A1846T and C1913A/G mutations of hepatitis B virus genome in severe liver diseases. AB - OBJECTIVE: Mutations occurring within different genes of hepatitis B virus (HBV) genome may have different clinical implications. This study aimed to observe the clinical and virological implications of the A1846T and C1913A/G mutations of HBV genome in the development and treatment outcome of severe liver diseases, which has not been previously determined. MATERIALS AND METHODS: A total of 438 cases of patients with liver diseases were retrospectively reviewed, including 146 with mild chronic hepatitis B infection (CHB-M), 146 with severe chronic hepatitis B infection (CHB-S), and 146 with acute-on-chronic liver failure (ACLF). Partial or full-length HBV genome was directly sequenced. Replicons containing A1846T, C1913A or other mutant sequences, or the wild-type counterparts were constructed respectively, and then transfected into HepG2 cells for phenotype analysis. RESULTS: There was significant difference in the detection rates of A1846T (30.82%, 40.41% and 55.48%, respectively) and C1913A/G (15.52%, 28.77%, and 35.62%, respectively) among patients with CHB-M, those with CHB-S, and those with ACLF (p < .01). A1846T was significantly associated with the mortality of ACLF patients within six months after the disease onset (OR 1.704, p = .041). In vitro experiment revealed that A1846T mutant resulted in 3.20-fold and 1.85-fold increase of replication capacity and promoter activity, respectively compared with wild type counterpart (p < .001), while C1913A led to a significant decrease of core protein expression (p < .05). CONCLUSION: Occurrence of A1846T and C1913A is positively associated with clinical presentations of severe liver disease. A1846T mutation is significantly associated with poor prognosis of ACLF. PMID- 29322852 TI - Anion inhibition studies of a beta carbonic anhydrase from the malaria mosquito Anopheles gambiae. AB - An anion inhibition study of the beta-class carbonic anhydrase, AgaCA, from the malaria mosquito Anopheles gambiae is reported. A series of simple as well as complex inorganic anions, and small molecules known to interact with CAs were included in the study. Bromide, iodide, bisulphite, perchlorate, perrhenate, perruthenate, and peroxydisulphate were ineffective AgaCA inhibitors, with KIs > 200 mM. Fluoride, chloride, cyanate, thiocyanate, cyanide, bicarbonate, carbonate, nitrite, nitrate, sulphate, stannate, selenate, tellurate, diphosphate, divanadate, tetraborate, selenocyanide, and trithiocarbonate showed KIs in the range of 1.80-9.46 mM, whereas N,N-diethyldithiocarbamate was a submillimolar AgaCA inhibitor (KI of 0.65 mM). The most effective AgaCA inhibitors were sulphamide, sulphamic acid, phenylboronic acid and phenylarsonic acid, with inhibition constants in the range of 21-84 uM. The control of insect vectors responsible of the transmission of many protozoan diseases is rather difficult nowadays, and finding agents which can interfere with these processes, as the enzyme inhibitors investigated here, may arrest the spread of these diseases worldwide. PMID- 29322853 TI - Laser ablation of the biliary tree: in vivo proof of concept as potential treatment of unresectable cholangiocarcinoma. AB - OBJECTIVES: The palliative treatment of cholangiocarcinoma is based on stent placement with well-known procedure-related complications. Consequently, alternative energy-based techniques were put forward with controversial long-term results. This study aims to evaluate the safety and effectiveness of biliary tree laser ablation (LA) in terms of: (i) absence of perforation, (ii) temperature increase, (iii) induced thermal damage in in vivo models. MATERIALS AND METHODS: The common bile duct and cystic ducts of two pigs were ablated with a diode laser (circumferential irradiation pattern) for 6 and 3 min at 7 W. Laser settings were chosen from previous ex vivo experiments. Local temperature was monitored through a fibre Bragg grating (FBG) sensor embedded into the laser delivery probe. Histopathological analysis of the ablated specimen was performed through in situ endomicroscopy, haematoxylin and eosin (H&E) and nicotinamide adenine dinucleotide (NADH) stains. RESULTS: Temperature reached a plateau of 53 degrees C with consequent thermal damage on the application area, regardless of laser settings and application sites. No perforation was detected macroscopically or microscopically. At the H&E stain, wall integrity was always preserved. The NADH stain allowed to evaluate damage extension. It turned out that the ablation spreading width depended on application time and duct diameter. In situ endomicroscopy revealed a clear distinction between ablated and non-ablated areas. CONCLUSIONS: The temperature distribution obtained through LA proved to induce a safe and effective intraductal coagulative necrosis of biliary ducts. These results represent the basis for further experiments on tumour-bearing models for the treatment of obstructive cholangiocarcinoma. PMID- 29322855 TI - Fatigue in pediatric patients with familial Mediterranean fever. AB - OBJECTIVES: Familial Mediterranean fever (FMF) is characterized by recurrent, self-limited attacks of fever with serositis involving the peritoneum, pleura and joints. Fatigue is a common problem in many pediatric rheumatic diseases; however, has not been evaluated systematically in FMF patients. Accordingly, the aim of this study was to evaluate fatigue and its possible allied factors in patients with FMF. METHODS: Patients with FMF, aged between 10 and 21 years, were assessed by completed validated fatigue questionnaire (Checklist Individual Strength-20). As a control group, patients with chronic rheumatic diseases and healthy children without any chronic disease were included. RESULTS: The study group comprised 111 patients with FMF, 54 with other chronic rheumatic diseases and 79 healthy subjects. While the CIS-20 total score and subscale scores (including subjective experience of fatigue) were similar between patients with FMF and those with other chronic rheumatic diseases (p > .05); both groups had significantly higher scores when compared with healthy subjects (p < .05). FMF patients with musculoskeletal complaints had significantly higher scores of subjective experiences of fatigue when compared to those without those complaints. CONCLUSIONS: Fatigue is a common but unrecognized complaint in patients with FMF. Familial Mediterranean fever seems to be a chronic disease with inter attack ongoing complaints. PMID- 29322854 TI - Are platelet volume indices related to mortality in hospitalized children on mechanical ventilation? AB - Objectives To investigate platelet volume indices and in-hospital mortality in children on mechanical ventilation. Methods This retrospective study included children aged <16 years on mechanical ventilation, and compared parameters, measured on admission, between survivors and non-survivors. Dynamic platelet volume indices over the first 7 days were visualized. Independent risk factors of mortality were identified using multivariate logistic regression analysis. Results Out of 2 319 children aged 28 days-3 years, serum albumin (odds ratio [OR] 0.9, 95% confidence interval [CI] 0.85, 0.96), bilirubin (OR 1.01, 95% CI 1.0, 1.77), and lactic acid (OR 1.22, 95% CI 1.05, 1.38) levels were associated with mortality. Out of 2 415 children aged > 3 years, procalcitonin (OR 1.01, 95% CI 1.0, 1.01) and lactic acid (OR 1.22, 95% CI 1.09, 1.35) were associated with mortality. Platelet volume indices on admission were not independently associated with mortality in either group. Mean platelet volume (MPV) and platelet distribution width (PDW) showed different trends in non-survivors versus survivors over 1 week in both age groups. Conclusions Platelet volume indices may be associated with mortality in critically ill children receiving mechanical ventilation. PMID- 29322856 TI - Perforation risk and intra-uterine devices: results of the EURAS-IUD 5-year extension study. AB - OBJECTIVES: The objective of this analysis was to identify intra-uterine devices (IUD) perforations detected from 12 to 60 months following IUD insertion, and to combine this information with (our previously published) data about perforations detected in the first 12 months to calculate cumulative perforation rates. METHODS AND MATERIALS: Prospective, non-interventional cohort study with new users of levonorgestrel-releasing intra-uterine systems (LNG-IUS) and copper-IUD. The original cohort included 61,448 women followed for 12 months. Of these, we had sufficient resources to perform an additional follow-up and analysis at 60 months in 39,009 women. Inclusion criteria for this analysis was insertion prior to 31 July 2010. All potential cases were validated via the health care professional or medical records. Crude and adjusted relative risks were calculated using a logistic regression model. RESULTS: We identified 23 additional perforations (19 LNG-IUS and 4 copper-IUD) more than 12 months after insertion. Added to perforations detected at 12 months, the overall perforation rate was 2.1 per 1000 insertions (95% CI: 1.6-2.8) for LNG-IUS users (40 + 19 perforations/27,630 insertions) and 1.6 per 1000 insertions (95% CI: 0.9-2.5) for copper-IUD users (14 + 4 perforations/11,379 insertions). LNG-IUS users had a borderline higher risk of perforation compared with copper-IUD users (ORadj 1.7; 95% CI: 1.0-2.8). Forty-five (58%) of the 77 perforations were associated with suspected risk factors. Breastfeeding (RR 4.9, 95% CI: 3.0-7.8) and time since delivery (RR 3.0, CI: 1.5-5.4) remained significant risk factors in perforations detected after 12 months. No perforations resulted in serious injury to intra abdominal or pelvic structures. CONCLUSIONS: The incidence of uterine perforations in this study was low, although higher than the commonly reported rate. Approximately one third of perforations are detected 12 months after insertion. Clinical sequalae of perforations are generally mild and associated with a very low risk of injury to intra-abdominal and pelvic structures. Implications Uterine perforation is a rare risk associated with intra-uterine device use. Late diagnosed perforations can occur, although women can be reassured that the morbidity associated with detection and removal is low. PMID- 29322857 TI - Morphometric analysis for evaluating the relation between incisal guidance angle, occlusal plane angle, and functional temporomandibular joint shape variation. AB - OBJECTIVE: The correlations between morphology of the temporomandibular joint structure, the anterior guidance angle, and occlusal plane were investigated. MATERIALS AND METHODS: A cone beam computed tomography analysis was performed in 158 patients (86 women and 72 men). 3D software was employed to obtain the coordinates of the shape of the incisal guidance angle, occlusal guidance angle, articular fossa, and mandibular condyle. Generalized Procrustes analysis including principal components analysis (PCA) were performed and produced principal components (PCs) scores of each shape and their centroid size (CS). RESULTS: A significant Pearson correlation coefficient of 0.3451 (p < .001) was observed between the incisal guidance angle and occlusal plane. The CS also showed a correlation with the incisal guidance angle, but not with the occlusal plane angle. The PCA results revealed that there were no significant correlations between the temporomandibular joint structure (TMJ) shape (fossa and condyle) and the incisal guidance angle. CONCLUSIONS: Incisor guidance angle and occlusal plane angle were correlated. In addition, there was a correlation between CS and incisal guidance angle. In the PCA, It can be concluded that the size is more related to the incisor guidance angle than the morphological factors of the constituent components of the TMJ. PMID- 29322858 TI - Epidemiology of mental health conditions in incoming division I collegiate athletes. AB - OBJECTIVES: The purpose of this study is to examine the epidemiology of mental health conditions in incoming American Division I collegiate athletes. METHODS: Pre-participation physical questionnaires from 1118 incoming student athletes at a Division I Institution were collected retrospectively from 2011-2017. Data collected included lifetime history of any mental health condition, musculoskeletal injuries, concussions, and post-concussion depression. History of any mental health condition was evaluated by gender and sport played. It was also evaluated in comparison to musculoskeletal injuries and concussions. RESULTS: The lifetime prevalence of any mental health condition was 14.0% for all athletes, 14.2% for male athletes, and 13.6% for female athletes. Individual sports reported a greater prevalence (17.2%) than did team sports (11.8%) (p = 0.010). The prevalence was also higher in contact sports (16.4%) than in non-contact sports (12.5%), although this difference was not statistically significant (p = 0.072). There was a significant association between mental health condition and all four major groups of injuries examined: upper extremity (p = 0.043), lower extremity (p = 0.007), axial skeletal (p < 0.001), and concussions (p = 0.039). Post-concussion depression occurred in 2.0% of all athletes reporting a concussion. CONCLUSION: The lifetime prevalence of mental health conditions in this population (14.0%) is far less than estimates in the general population. This observation may be due to a combination of factors including exercise/athletic participation mitigating depressive symptoms, competitive selection, and underreporting. History of a mental health condition may be associated with injury, although causation cannot be determined. PMID- 29322859 TI - Electrostatic hazards of charging of bedclothes and ignition in medical facilities. AB - We investigated the charge generated on bedclothes (cotton and polyester) during bedding exchange with different humidities and the ignitability of an alcohol based hand sanitizer (72.3 mass% ethanol) due to static spark with different temperatures to identify the hazards of electrostatic shocks and ignitions occurring previously in medical facilities. The results indicated that charging of the polyester bedclothes may induce a human body potential of over about 10 kV, resulting in shocks even at a relative humidity of 50%, and a human body potential of higher than about 8 kV can cause a risk for the ignition of the hand sanitizer. The grounding of human bodies via footwear and flooring, therefore, is essential to avoid such hazards (or to reduce such risks). PMID- 29322861 TI - Community mobility after stroke: a systematic review. AB - : Background Stroke is the leading cause of severe disability and many survivors report long-term physical or cognitive impairments that may impact their ability to achieve community mobility (CM). PURPOSE: To determine the extent to which people with chronic stroke achieve CM compared to age-matched norms or non neurologically impaired controls. Methods The StrokEDGE outcome measures were searched to identify validated tools that included >25% of items addressing CM. MEDLINE, CINAHL, Google Scholar, PubMed, PEDro and the Cochrane databases were searched from 2001 to 2015 with the identified outcome measures cross-referenced against search terms related to stroke and CM. INCLUSION CRITERIA: utilized a validated CM outcome measure, chronic (>3 months post) stroke survivors, and randomized controlled trial, observational or cohort study design. One reviewer screened the studies and performed data extraction and three performed quality appraisal. Fourteen studies met all inclusion criteria. Results Stroke survivors have impaired CM as demonstrated by 30-83% of normative or non-stroke subject CM scores. As time post-stroke increased, CM improved only slightly. Factors found to correlate with the CM were age, education, general well-being, emotional state, motor function and coordination, independence in activities of daily living, balance, endurance and driving status. Limitations of this review include a relatively high functioning cohort, no meta-analysis and reliance on outcome measures not specifically designed to measure CM. Conclusion Survivors of stroke may experience a significant decrease in CM compared to people without neurological injury. Rehabilitation addressing motor function, coordination, independence in activities of daily living, balance and endurance may be important for achieving higher levels of CM. Outcome measures directly addressing CM are needed. PMID- 29322862 TI - Feasibility of developing a passive sampler for sampling heavy metals in BMPs for stormwater runoff management. AB - Structural Best Management Practices (BMPs) have been used for stormwater treatment and management for several decades. How to monitor these BMPs performance reliably and economically is a challenge. This paper reports the feasibility of developing a flow through passive sampler (PS) based on Amberlite IRC748 ion exchange resin operated in kinetic regime for sampling heavy metals in BMPs (infiltration systems) for stormwater treatment and management. Tests were conducted using batch reactors and laboratory-scale BMPs. Batch reactor results indicate that PSs performed desirably with consistent and rapid metal uptake, and thus, the resin-based PS is feasible to be used for stormwater sampling. In lab scale BMPs tests, the resin PSs were employed for sampling influent and effluent of BMPs loaded with synthetic stormwater for storm durations of 0.5, 3, and 12 hours. The removal efficiency of heavy metals in the BMPs as predicted by PSs was very similar to the actual treatment efficiencies obtained from control BMPs, with errors ranging from -5% to 2%, indicating that the PSs can be used for sampling stormwater and monitoring BMPs. The next step for this sampler will be to develop a method for evaluating the volume of water passing the PS during the sampling period. PMID- 29322860 TI - Antenatal and Neonatal Antecedents of Executive Dysfunctions in Extremely Preterm Children. AB - To find out why children born extremely preterm are at heightened risk of executive dysfunctions, the authors assessed 716 children who were 10 years old born extremely preterm whose IQ was >= 70. A working memory dysfunction (n = 169), an inhibition dysfunction (n = 360), a switching dysfunction (355), and all 3 (executive dysfunction; n = 107) were defined on the basis of Z-scores <= -1 on the Differential Ability Scales-II Working Memory composite, and/or on the NEPSY II Inhibition-Inhibition and Inhibition-Switching subtests. All risk profiles include an indicator of socioeconomic disadvantage. The risk profile of each of the 3 individual dysfunctions includes an indicator of the newborn's immaturity, and the risk profiles of the inhibition dysfunction and switching dysfunction also include an indicator of inflammation. Only the switching dysfunction was associated with fetal growth restriction. The risk factors for executive dysfunction can be subsumed under the 4 themes of socioeconomic disadvantage, immaturity/vulnerability, inflammation, and fetal growth restriction. PMID- 29322863 TI - Transcultural factors related to depressive psychopathology in Sri Lankan migrants living in Australia. PMID- 29322864 TI - Effects of Danshen tablets on pharmacokinetics of atorvastatin calcium in rats and its potential mechanism. AB - CONTEXT: Danshen tablets (DST), an effective traditional Chinese multi-herbal formula, are often combined with atorvastatin calcium (AC) for treating coronary heart disease in the clinic. OBJECTIVE: This study investigated the effects of DST on the pharmacokinetics of AC and the potential mechanism. MATERIALS AND METHODS: The pharmacokinetics of AC (1 mg/kg) with or without pretreatment of DST (100 mg/kg) were investigated using LC-MS/MS. The effects of DST (50 MUg/mL) on the metabolic stability of AC were also investigated using rat liver microsome incubation systems. RESULTS: The results indicated that Cmax (23.87 +/- 4.27 vs. 38.94 +/- 5.32 ng/mL), AUC(0-t) (41.01 +/- 11.32 vs. 77.28 +/- 12.92 ng h/mL), and t1/2 (1.91 +/- 0.18 vs. 2.74 +/- 0.23 h) decreased significantly (p < 0.05) when DST and AC were co-administered, which suggested that DST might influence the pharmacokinetic behavior of AC when they are co-administered. The metabolic stability (t1/2) of AC was also decreased (25.7 +/- 5.2 vs. 42.5 +/- 6.1) with the pretreatment of DST. DISCUSSION AND CONCLUSIONS: This study indicated that the main components in DST could accelerate the metabolism of AC in rat liver microsomes and change the pharmacokinetic behaviors of AC. So these results showed that the herb-drug interaction between DST and AC might occur when they were co-administered. Therefore, the clinical dose of AC should be adjusted when DST and AC are co-administered. PMID- 29322865 TI - A mathematical model of tumour growth with Beddington-DeAngelis functional response: a case of cancer without disease. AB - A previously published mathematical model, governing tumour growth with mixed immunotherapy and chemotherapy treatments, is modified and studied. The search time, which is assumed to be neglectable in the previously published model, is incorporated into the functional response for tumour-cell lysis by effector cells. The model exhibits bistability where a tumour-cell population threshold exists. A tumour with an initial cell population below the threshold can be controlled by the immune system and remains microscopic and asymptomatic called cancer without disease while that above the threshold grows to lethal size. Bifurcation analysis shows that (a) the chemotherapy-induced damage may cause a microscopic tumour, which would never grow to become lethal if untreated, to grow to lethal size, (b) applying chemotherapy alone requires a large dosage to be successful, PMID- 29322866 TI - How does language change after an intensive treatment on imitation? AB - The main aim of our study was to investigate the role of imitation in improving word-finding difficulties in a group of aphasic subjects. For this purpose, we designed software based on the computerised program described by Lee et al. (2010). Seven subjects with aphasia resulting from a brain injury were enrolled in the study. A battery of tests was administered to participants one month before the treatment (T0) and immediately before its beginning (T1) with the aim of detecting their language difficulties. In the period between T0 and T1 sessions, participants underwent traditional logopaedic and neuropsychological rehabilitation. The treatment lasted 45 days with 90-minute sessions per day and it was personalised in terms of difficulty for each of the subjects. During every session the task required participants to carefully observe and then imitate six actors while pronouncing aloud a series of words and sentences describing a set of items. The results showed a significant improvement in the whole sample and in all the analysed measures only between T1 and T2 (post-training evaluation), while, as expected, no improvement was registered between T0 and T1. Such outcomes are consistent with research showing the key role played by imitation in the word retrieval process following aphasia. PMID- 29322868 TI - In silico approaches to evaluate the molecular properties of organophosphate compounds to inhibit acetylcholinesterase activity in housefly. AB - Organophosphate compounds (OPC) have become the primary choice as insecticides and are widely used across the world. Additionally, OPCs were also commonly used as a chemical warfare agent that triggers a great challenge to public safety. Exposure of OPCs to human causes immediate excitation of cholinergic neurotransmission through transient elevation of synaptic acetylcholine (ACh) levels and accumulations. Likewise, prolonged exposure of OPCs can affect the processes in immune response, carbohydrate metabolism, cardiovascular toxicity, and several others. Studies revealed that the toxicity of OPCs was provoked by inhibition of acetylcholinesterase (AChE). Therefore, combined in silico approaches - pharmacophore-based 3D-QSAR model; docking and Molecular Dynamics (MD) - were used to assess the precise and comprehensive effects of series of known OP-derived compounds together with its -log LD50 values. The selected five featured pharmacophore model - AAHHR.61 - displayed the highest correlation (R2 = .9166), cross-validated coefficient (Q2 = .8221), F = 63.2, Pearson-R = .9615 with low RMSE = .2621 values obtained using five component PLS factors. Subsequently, the well-validated model was then used as a 3D query to search novel OPCs using a high-throughput virtual screening technique. Simultaneously, the docking studies predicted the binding pose of the most active OPC in the MdAChE binding pocket. Additionally, the stability of docking was verified using MD simulation. The results revealed that OP22 and predicted lead compounds bound tightly to S315 of MdAChE through potential hydrogen bond interaction over time. Overall, this study might provide valuable insight into binding mode of OPCs and hit compounds to inhibit AChE in housefly. PMID- 29322867 TI - Implementing voluntary medical male circumcision using an innovative, integrated, health systems approach: experiences from 21 districts in Zimbabwe. AB - BACKGROUND: Despite increased support for voluntary medical male circumcision (VMMC) to reduce HIV incidence, current VMMC progress falls short. Slow progress in VMMC expansion may be partially attributed to emphasis on vertical (stand alone) over more integrated implementation models that are more responsive to local needs. In 2013, the ZAZIC consortium began implementation of a 5-year, integrated VMMC program jointly with Ministry of Health and Child Care (MoHCC) in Zimbabwe. OBJECTIVE: To explore ZAZIC's approach emphasizing existing healthcare workers and infrastructure, increasing program sustainability and resilience. METHODS: A process evaluation utilizing routine quantitative data. Interviews with key MoHCC informants illuminate program strengths and weaknesses. METHODS: A process evaluation utilizing routine quantitative data. Interviews with key MoHCC informants illuminate program strengths and weaknesses. RESULTS: In start-up and year 1 (March 2013-September, 2014), ZAZIC expanded from two to 36 static VMMC sites and conducted 46,011 VMMCs; 39,840 completed from October 2013 to September 2014. From October 2014 to September 2015, 44,868 VMMCs demonstrated 13% increased productivity. In October, 2015, ZAZIC was required by its donor to consolidate service provision from 21 to 10 districts over a 3-month period. Despite this shock, 57,282 VMMCs were completed from October 2015 to September 2016 followed by 44,414 VMMCs in only 6 months, from October 2016 to March 2017. Overall, ZAZIC performed 192,575 VMMCs from March 2013 to March, 2017. The vast majority of VMMCs were completed safely by MoHCC staff with a reported moderate and severe adverse event rate of 0.3%. CONCLUSION: The safety, flexibility, and pace of scale-up associated with the integrated VMMC model appears similar to vertical delivery with potential benefits of capacity building, sustainability and health system strengthening. These models also appear more adaptable to local contexts. Although more complicated than traditional approaches to program implementation, attention should be given to this country-led approach for its potential to spur positive health system changes, including building local ownership, capacity, and infrastructure for future public health programming. PMID- 29322869 TI - Identifying, organizing and prioritizing ideas on how to enhance ADL ability. AB - BACKGROUND: There is a need to develop evidence-based occupational therapy programs aiming at enhancing the ability to perform Activities of Daily Living (ADL) among persons living with chronic conditions. Information from different sources is to be integrated in the development process. Thus, it is necessary to engage both occupational therapists and persons living with chronic conditions in suggesting ideas on how to enhance the ADL ability. OBJECTIVE: To identify, organize and prioritize ideas on how to enhance ability to perform ADL in persons with chronic conditions. MATERIAL AND METHOD: Group Concept Mapping, involving brainstorming, sorting, labeling, rating and validation of ideas, was applied among persons with chronic conditions (n = <= 18) and occupational therapists (n = <= 23). Multidimensional scaling analysis and cluster analyzes were applied. RESULTS: 149 ideas were identified and organized into seven clusters related to applying new adaptational strategies, personal factors, social surroundings and relevant services and opportunities. Each cluster contained ideas of high priority to persons with chronic conditions and/or occupational therapists. CONCLUSION: A span of highly relevant themes, illustrated the complexity of enhancing ADL ability. This should be considered in the development of interventions aiming at enhancing ADL ability in persons with chronic conditions. PMID- 29322872 TI - A Collaborative Approach to Improve Consistent Use of Procalcitonin in Lower Respiratory Tract Infections. AB - BACKGROUND: Procalcitonin (PCT) is a biomarker that can help differentiate bacterial from viral infections and has been extensively studied in patients with sepsis and pneumonia to guide antibiotic therapy. However, there is poor adherence to prescribed algorithms when used to discontinue antibiotics in the real world. A quality improvement project was implemented to increase consistent use of PCT. OBJECTIVE: To evaluate use of PCT and impact on antibiotic length of therapy (LOT) preimplementation and postimplementation of a quality improvement initiative. METHODS: This was a single-center retrospective cohort study in patients with lower respiratory tract infections (LRTIs). RESULTS: In all, 330 patients were included in this study. Following implementation of the quality improvement initiative, ordering PCT in the first 24 hours increased from 59.6% to 75.5% ( P = 0.011). Documentation to discontinue antibiotics in patients with low initial PCT values increased from 13.2% to 28.6% ( P = 0.100). Increased PCT use correlated with an overall mean reduction of 1.05 antibiotic days between cohorts (6.82 +/- 3.88 vs 5.77 +/- 3.43, P = 0.028). There was no difference in incidence of antibiotic-associated adverse effects or 30-day hospital readmission rates attributed to pneumonia. CONCLUSIONS: Consistent use of PCT was achieved through a collaborative effort with the clinical pharmacy and hospitalist staff. Increased use of PCT was associated with a significant reduction in antibiotic LOT among patients with LRTIs. When controlling for other factors, low initial PCT values had the strongest influence on discontinuing antibiotics within 72 hours in the intervention group. PMID- 29322871 TI - Are Extremely Low Gestational Age Newborns Born to Obese Women at Increased Risk of Cerebral Palsy at 2 Years? AB - The authors hypothesized that the risk of cerebral palsy at 2 years in children born extremely preterm to overweight and obese women is increased relative to the risk among children born to neither overweight nor obese women. In a multicenter prospective cohort study, the authors created multinomial logistic regression models of the risk of diparetic, quadriparetic, and hemiparetic cerebral palsy that included the prepregnancy body mass index of mothers of 1014 children born extremely preterm, cerebral palsy diagnoses of children at 2 years, as well as information about potential confounders. Overweight and obese women were not at increased risk of giving birth to a child who had cerebral palsy. The risk ratios associated with overweight varied between 1.1 for quadriparesis (95% CI = 0.5, 2.1) to 2.0 for hemiparesis (95% CI = 0.4, 9.8). The risk ratios associated with obesity varied between 0.7 for diparesis (95% CI = 0.2, 2.5) to 2.5 for hemiparesis (95% CI = 0.4, 13). PMID- 29322873 TI - Trends and Complications in Open Versus Endoscopic Carpal Tunnel Release in Private Payer and Medicare Patient Populations. AB - PURPOSE: The purpose of this study was to report trends, complications, and costs associated with endoscopic carpal tunnel release (ECTR) and open carpal tunnel release (OCTR). METHODS: Using Current Procedural Terminology (CPT) and International Classification of Diseases, Ninth Revision (ICD-9) codes, patients who had open versus endoscopic carpal tunnel release (CTR) were identified retrospectively in the PearlDiver database from both the Medicare and Humana (a private payer health insurance) populations from 2005 to 2014. These groups were then evaluated for postoperative complications, including wound infection within 90 days, wound dehiscence within 90 days, and intraoperative median nerve injury. We also used the data output for each group to compare the cost of the 2 procedure types. Data were analyzed via the Student t test. Statistical significance was set at P < .05. RESULTS: A significantly lower percentage of patients in the endoscopic CTR group had a postoperative infection (5.21 vs 7.97 per 1000 patients per year, P < .001; 7.36 vs 11.23 per 1000 patients per year, P < .001) and wound dehiscence (1.58 vs 2.87 per 1000 patients per year, P < .001; 2.14 vs 3.73 per 1000 patients per year, P < .05) than open CTR group in the Medicare and Humana populations, respectively. Median nerve injury occurred 0.59/1000 ECTRs versus 1.69/1000 OCTRs (Medicare) and 1.96/1000 ECTRs versus 3.72/1000 OCTRs (Humana). Endoscopic CTR cost was more than open CTR for both the Medicare population ($1643 vs $1015 per procedure, P < .001) and Humana population ($1928 vs $1191 per procedure, P < .001). CONCLUSIONS: In both the Medicare and private insurance patient populations, endoscopic CTR is associated with fewer postoperative complications than open CTR, but is associated with greater expenses. PMID- 29322874 TI - MRSA Incidence and Antibiotic Trends in Urban Hand Infections: A 10-Year Longitudinal Study. AB - BACKGROUND: Methicillin-resistant Staphylococcus aureus (MRSA) is the most reported pathogen in hand infections at urban medical centers throughout the country. Antibiotic sensitivity trends are not well known. The purposes of this study were to examine and determine the drug resistance trends for MRSA infections of the hand and to provide recommendations for empiric antibiotic treatment based on sensitivity profiles. METHODS: A 10-year longitudinal, retrospective chart review was performed on all culture-positive hand infections encountered at a single urban medical center from 2005 to 2014. The proportions of all organisms were calculated for each year and collectively. MRSA infections were additionally subanalyzed for antibiotic sensitivity. RESULTS: A total of 815 culture-positive hand infections were identified. Overall, MRSA grew on culture in 46% of cases. A trend toward decreasing annual MRSA incidence was noted over the 10-year study period. There was a steady increase in polymicrobial infections during the same time. Resistance to clindamycin increased steadily during the 10 year study, starting at 4% in 2008 but growing to 31% by 2014. Similarly, levofloxacin resistance consistently increased throughout the study, reaching its peak at 56% in 2014. CONCLUSIONS: The annual incidence of MRSA in hand infections has declined overall but remains the most common pathogen. There has been an alternative increase in the number of polymicrobial infections. MRSA resistance to clindamycin and levofloxacin consistently increased during the study period. Empiric antibiotic therapy for hand infections should not only avoid penicillin and other beta-lactams but should also consider avoiding clindamycin and levofloxacin for empiric treatment. PMID- 29322875 TI - Biomechanical Analysis of Capsular Repair Versus Arthrex TFCC Ulnar Tunnel Repair for Triangular Fibrocartilage Complex Tears. AB - BACKGROUND: This study compares the effectiveness of a peripheral capsular repair with a knotless arthroscopic transosseous ulnar tunnel repair (TR) in restoring distal radioulnar joint (DRUJ) stability and stiffness in the setting of a massive triangular fibrocartilage complex (TFCC) tear. METHODS: Eight matched pairs of fresh-frozen cadaveric forearms were tested. Each forearm was tested in supination and pronation using 3-dimensional (3D) optical tracking devices prior to any intervention. Each specimen then underwent a diagnostic wrist arthroscopy and sectioning of the TFCC's deep and superficial fibers. All specimens were then retested to assess instability secondary to the tear. The TFCC was repaired with either a peripheral capsular repair (CR) using three 2-0 polydioxanone sutures or a transosseous ulnar TR using a 2-0 FiberWire, and then retested (statistical significance; P < .05). RESULTS: After TFCC arthroscopic sectioning, all specimens were unstable with a significant increase in translation and a significant decrease in stiffness. TFCC repair with TR resulted in displacement and stiffness similar to the native tissue. CR specimens were found to have significantly greater displacement and significantly decreased stiffness compared with the intact state. CONCLUSIONS: Arthroscopic sectioning of the TFCC resulted in DRUJ instability, as measured by stiffness and ulnar translation. TR effectively restored DRUJ stability and demonstrated no significant difference in postoperative stiffness or maximal displacement when compared with the intact specimen in pronation and supination. This study provides biomechanical evidence that an arthroscopic ulnar tunnel technique can restore stability to the DRUJ after a massive TFCC tear. PMID- 29322876 TI - Study of Telomere Length in Preimplanted Cultured Chondrocytes. AB - Design In the process of cell division, the extremes of the eukaryotic chromosomes are progressively shortening, and this phenomenon is related to cell degeneration and senescence. The treatment of cartilage lesions with autologous chondrocytes implies that cells proliferate in an artificial environment. We have studied the viability of cultured chondrocytes after measurement of their telomere length before implantation. Methods Articular cartilage biopsies (B1, B2, and B3) were obtained from 3 patients (2 males and 1 female) with knee cartilage defects, who were going to be treated with chondrocyte implantation. Chondrocytes were cultured in DMEM with autologous serum. After the third passage, an aliquot of 1 million cells was removed to estimate the telomere length and the remaining cells were implanted. Telomere length was measured by quantitative fluorescent in situ hybridization (Q-FISH). Patients' clinical outcome was determined preoperatively, and 12 and 24 months postimplantation with the International Knee Documentation Committee (IKDC) questionnaire. Results After chondrocyte implantation, IKDC score doubled at 12 and 24 months with regard to the basal value. After 3 passages, chondrocytes were cultured for a mean of 45.67 days, the mean duplication time being 4.53 days and the mean number of cell divisions being 10.04 during the culture period. The 20th percentile of telomere lengths were 6.84, 6.96, and 7.06 kbp and the median telomere lengths 10.30, 10.47, and 10.73 kbp, respectively. No significant correlation was found between IKDC score and telomere length. Conclusion Culturing autologous chondrocytes for implantation is not related to cell senescence in terms of telomere length. PMID- 29322877 TI - Topographical Variation of Human Femoral Articular Cartilage Thickness, T1rho and T2 Relaxation Times Is Related to Local Loading during Walking. AB - Objective Early detection of degenerative changes in the cartilage matrix composition is essential for evaluating early interventions that slow down osteoarthritis (OA) initiation. T1rho and T2 relaxation times were found to be effective for detecting early changes in proteoglycan and collagen content. To use these magnetic resonance imaging (MRI) methods, it is important to document the topographical variation in cartilage thickness, T1rho and T2 relaxation times in a healthy population. As OA is partially mechanically driven, the relation between these MRI-based parameters and localized mechanical loading during walking was investigated. Design MR images were acquired in 14 healthy adults and cartilage thickness and T1rho and T2 relaxation times were determined. Experimental gait data was collected and processed using musculoskeletal modeling to identify weight-bearing zones and estimate the contact force impulse during gait. Variation of the cartilage properties (i.e., thickness, T1rho, and T2) over the femoral cartilage was analyzed and compared between the weight-bearing and non-weight-bearing zone of the medial and lateral condyle as well as the trochlea. Results Medial condyle cartilage thickness was correlated to the contact force impulse ( r = 0.78). Lower T1rho, indicating increased proteoglycan content, was found in the medial weight-bearing zone. T2 was higher in all weight bearing zones compared with the non-weight-bearing zones, indicating lower relative collagen content. Conclusions The current results suggest that medial condyle cartilage is adapted as a long-term protective response to localized loading during a frequently performed task and that the weight-bearing zone of the medial condyle has superior weight bearing capacities compared with the non weight-bearing zones. PMID- 29322878 TI - Mechanical, Cellular, and Proteomic Properties of Laryngotracheal Cartilage. AB - The larynx sometimes requires repair and reconstruction due to cancer resection, trauma, stenosis, or developmental disruptions. Bioengineering has provided some scaffolding materials and initial attempts at tissue engineering, especially of the trachea, have been made. The critical issues of providing protection, maintaining a patent airway, and controlling swallowing and phonation, require that the regenerated laryngotracheal cartilages must have mechanical and material properties that closely mimic native tissue. These properties are determined by the cellular and proteomic characteristics of these tissues. However, little is known of these properties for these specific cartilages. This review considers what is known and what issues need to be addressed. PMID- 29322879 TI - Puerarin prevents diabetic cardiomyopathy in vivo and in vitro by inhibition of inflammation. AB - Diabetic cardiomyopathy (DCM) is one of the chief diabetes mellitus complications. Inflammation factors may be one reason for the damage from DM. The purpose of this research is to study the potential protective effects of puerarin on DM and the possible mechanisms of action related to NF-kappaB signal pathway. Following administration of puerarin to the disease model rat, several changes were observed including the changes of serum biochemical index, improved diastolic dysfunction, and enhanced endogenous antioxidant enzymes activities, further NF-kappaB signaling activation. Puerarin showed cardio-protective effects on DCM by inhibiting inflammation, and it might be a potential candidate for the treatment of DCM. PMID- 29322880 TI - Reversible splenial lesion syndrome due to oxcarbazepine withdrawal: case report and literature review. AB - Background Reversible splenial lesion syndrome is a distinct entity radiologically characterized by a reversible lesion in the splenium of the corpus callosum. According to previous reports, this condition may be associated with antiepileptic drug use or withdrawal. We herein report a case of reversible splenial lesion syndrome associated with oxcarbazepine withdrawal. Case Report A 39-year-old man presented with an 8-year history of epileptic seizures. During the previous 3 years, he had taken oxcarbazepine irregularly. One week prior to admission, he withdrew the oxcarbazepine on his own, and the epilepsy became aggravated. Magnetic resonance imaging (MRI) revealed an isolated lesion in the splenium of the corpus callosum with slight hypointensity on T1-weighted imaging and slight hyperintensity on T2-weighted imaging. Regular oxcarbazepine was prescribed. Over a 5-month follow-up period, repeat MRI showed that the abnormal signals in the splenium of the corpus callosum had completely disappeared. Conclusion Reversible splenial lesion syndrome is a rare clinicoradiological disorder that can resolve spontaneously with a favorable outcome. Clinicians should be aware of this condition and that oxcarbazepine withdrawal is a possible etiological factor. PMID- 29322881 TI - Radiofrequency ablation of primary thyroid carcinoma: efficacy according to the types of thyroid carcinoma. AB - OBJECTIVE: To evaluate the efficacy of ultrasound (US)-guided radiofrequency ablation (RFA) according to the types of thyroid carcinoma, particularly in patients with a high-surgical risk. MATERIALS AND METHODS: Eight patients with nine tumours of pathologically proven papillary and anaplastic carcinoma were treated by US-guided RFA. Patients with primary thyroid carcinoma were divided into three groups; group (1) Anaplastic carcinoma, group (2) papillary macrocarcinoma, and group (3) papillary microcarcinoma. We evaluated changes in clinical symptoms, tumour volume and local tumour recurrence/metastasis after RFA. Patients were followed up at 1, 6 and 12 months and annually thereafter. RESULTS: Among nine tumours, one anaplastic carcinoma was treated three times and the other anaplastic carcinoma and one papillary macrocarcinoma were treated twice. Group 3 were treated once. The initial mean tumour volume was 107.9 +/- 78.6 (with neck bulging), 126.9 (with neck bulging) and 0.16 +/- 0.08 mL (without cosmetic or symptomatic problems) in groups 1-3, respectively. Group 1 showed no improvement in clinical symptoms or neck bulging after RFA, whereas group 2 demonstrated a decreased tumour volume measuring 0.7 mL with improved neck bulging. In group 3, mean volume decreased measuring 0.07 +/- 0.12 mL. No local tumour recurrence or metastatic lesion was detected during the mean follow-up of 19.3 months in papillary carcinomas. No major complications were encountered. CONCLUSIONS: In patients with primary thyroid carcinoma, RFA achieved excellent local tumour control for papillary macro- and microcarcinoma; however, its clinical effect on anaplastic carcinoma was questionable. PMID- 29322882 TI - Molecular detection and characterization of transient bovine viral diarrhea virus (BVDV) infections in cattle commingled with ten BVDV persistently infected cattle. AB - Fifty-three cattle of unknown serologic status that were not persistently infected (PI) with bovine viral diarrhea virus (BVDV) were commingled with 10 cattle that were PI with different strains of BVDV, and were monitored for an extended commingle period using a reverse-transcription real-time PCR (RT-rtPCR) BVDV assay on various sample types. Transient infections with BVDV were also assessed by virus isolation, virus neutralization (VN) assays, and direct buffy coat 5'-UTR sequencing. Infections were demonstrated in all cattle by RT-rtPCR; however, the detection rate was dependent on the type of sample. Buffy coat samples demonstrated a significantly greater number of positive results ( p <= 0.05) than either serum or nasal swab samples. Presence of elevated BVDV VN titers at the onset inversely correlated with the number of test days positive that an individual would be identified by RT-rtPCR from buffy coat samples, and directly correlated with the average Ct values accumulated over all RT-rtPCR test days from buffy coat samples. Both single and mixed genotype/subgenotype/strain infections were detected in individual cattle by direct sample 5'-UTR sequencing. A BVDV-2a strain from a PI animal was found to be the predominant strain infecting 64% of all non-PI cattle; BVDV-1b strains originating from 3 PI cattle were never detected in non-PI cattle. Although direct sample 5'-UTR sequencing was capable of demonstrating mixed BVDV infections, identifying all strains suspected was not always efficient or possible. PMID- 29322883 TI - Cardiac mesothelial papillary hyperplasia in four dogs. AB - Mesothelial papillary hyperplasia (MPH) has been described as an incidental finding on the epicardial surface of clinically normal laboratory Beagle dogs. We describe MPH in 4 dogs diagnosed with acute cardiac tamponade (1 case) or chronic cardiac disease (3 cases). Cardiac MPH appeared as distinct, soft, irregular villous plaques on the epicardial surface of the auricles and occasionally the ventricles. Histologically, areas of MPH were composed of multiple papillary fronds arising from the epicardial surface and projecting into the pericardial space. Fronds were covered by cuboidal and occasionally vacuolated mesothelial cells and were supported by loose fibrovascular stroma with various degrees of edema and inflammation. Although these may represent incidental findings with no clinical significance, the gross appearance warrants differentiation from other conditions. Additional insight into the pathogenesis of MPH is needed to fully understand its significance in the face of concurrent cardiac disease. PMID- 29322884 TI - High mortality in foals associated with Salmonella enterica subsp. enterica Abortusequi infection in Italy. AB - Salmonella enterica subsp. enterica serovar Abortusequi is frequently reported as a cause of abortion in mares and neonatal septicemia and polyarthritis in Asian and African countries, but only sporadically in Europe and the United States. We report an outbreak of S. Abortusequi in foals in Italy, characterized by high mortality. In a herd of Murgese horses, 10 of 34 newborns died at birth and a further 7 died, after developing severe clinical signs, during the first 10 d of life. Tissue specimens from different organs of 2 dead foals, synovial fluids from 4 sick foals, and vaginal and rectal swabs from their dams were cultured. A total of 16 isolates, all as pure cultures, were obtained and identified as Salmonella. The isolates exhibited the same antimicrobial resistance pattern and the same sequence type, ST251, a type that has been associated with S. Abortusequi. Six of 16 isolates were serotyped and found to be S. Abortusequi 4,12:-:e,n,x. Equine practitioners should be aware of S. Abortusequi infection as a cause of neonatal mortality in foals. PMID- 29322885 TI - Analysis of a 15-years' experience in including shoulder muscles, when treating upper-limb spasticity post-stroke with botulinum toxin type A. AB - Background Botulinum toxin type-A (BoNTA) is a recognized treatment for upper limb spasticity (ULS) after stroke, but there aren't many studies analyzing its effect in shoulder muscles. Objective To evaluate the efficacy of BoNTA injections for ULS, when shoulder muscles are included. Methods A cross-sectional study. Data from clinical forms of outpatients, treated at a Rehabilitation Center (2001-2016). Analyzes: goals of treatment; demographic characteristics/goal; treatment success, using Goal Attainment Scaling. Results Eighty-six stroke-patients, submitted to 547 BoNTA treatment sessions. The most injected shoulder muscles were subscapularis (SC) 35%, pectoralis major (PM) 31%, deltoideus 14%. The most selected goals for treatment were: involuntary movements (IM) 33%, pain/discomfort (PD) 26%, and mobility (MOB) 18%. Patients achieved or overachieved the IM goal in 76%, PD in 78%, and MOB in 79%. Patients with IM goal were younger (p < 0.01), than those setting other goal types; PD patients, were older (p < 0.019), treated half a year earlier (p < 0.01), and had more spasticity (MAS ? 0.15); MOB patients were younger (p = 0.04) and less spastic (MAS ? 0.12). Achieving PD goal impacted positively in improving MOB (p = 0.042) and passive function (p = 0.018). Conclusion When treating ULS, including shoulder muscles, the most frequent goals were IM, PD e MOB. The most injected muscles were SC and PM. The treatment was successful in a large percentage of cases. Achieving the PD goal was associated with greater success at other goals of treatment. BoNTA demonstrated a positive effect in controlling symptoms and improving function. PMID- 29322887 TI - Functional outcome after proximal humerus fracture fixation : understanding the risk factors. AB - The purpose is to identify risk factors of functional outcome following proximal humerus open reduction and internal fixation. Patients treated for proximal humerus fractures with open reduction and internal fixation were enrolled in a prospective data registry. Patients were evaluated for function using the Disability of the Arm, Shoulder and Hand score for 12 months and as available beyond 12 months. Univariate analyses were conducted to identify variables associated with functional outcome. Significant variables were included in a multivariate regression predicting functional outcome. Demographics and minimum of 12 month follow-up were available for 129 patients (75%). Multiple regression demonstrated postoperative complication (B=8.515 p=0.045), education level (B= 6.269p<0.0005), age (B=0.241p=0.049) and Charlson Comorbidity Index (B=6.578, p=0.001) were all significant predictors of functional outcome. Orthopaedic surgeons can use education level, comorbidities, age, and postoperative complication information to screen patients for worse outcomes, establish expectations, and guide care. PMID- 29322886 TI - Chronicity, crisis, and the 'end of AIDS'. AB - In biomedical, public health, and popular discourses, the 'end of AIDS' has emerged as a predominant way to understand the future of HIV research and prevention. This approach is predicated on structuring and responding to HIV in ways that underscore its presumed lifelong nature. In this article, I examine the phenomenon of HIV chronicity that undergirds the 'end of AIDS' discourse. In particular, I explore how the logic of HIV chronicity, induced by technological advances in treatment and global financial and political investments, intensifies long-term uncertainty and prolonged crisis. Focusing on over 10 years of anthropological and public health research in the United States, I argue that HIV chronicity, and subsequently, the 'end of AIDS' discourse, obscure the on-going HIV crisis in particular global communities, especially among marginalised and ageing populations who live in under-resourced areas. By tracing the 'end of AIDS' discourse in my field sites and in other global locations, I describe how HIV chronicity signals a continuing global crisis and persistent social precarity rather than a 'break' with a hopeless past or a promising future free from AIDS. PMID- 29322888 TI - Epidemiology of scapular fractures. AB - The aim of the study has been to acquire basic epidemiological data based on a representative group of patients with scapular fractures treated in one centre. The study analyses group of 250 patients. Diagnostics was based on CT examinations, in 227 cases with 3D reconstructions, in 97 cases compared with operative findings. Fractures were classified according to the modified anatomical classification of Tscherne and Christ. The analysed groups of patients include only the fracture lines whose existence has been verified by 3D CT reconstructions and intraoperative findings. The most common fracture in the group was that of the scapular body (52%), followed by fractures of the glenoid fossa (29%), fractures of the processes (11%) and fractures of the scapular neck (8%). The most frequent associated injuries to the ipsilateral shoulder girdle were clavicular fractures (19%). Scapular fractures occur primarily in men, predominantly in 4th - 6th decades (66 % patients). The group of women was significantly older as compared to men (p = 0.017). The group of patients with scapular neck fractures was significantly younger as compared to the age of patients with glenoid fracture (p = 0.021) and scapular body fracture (p = 0.035). PMID- 29322889 TI - Outcomes of open reduction and internal fixation in displaced intra-articular scapular fractures : a case series. AB - Scapular fractures are rare injuries and usually occur due to high energy trauma. Displaced Intra articular fractures usually require operative treatment and yields better outcomes as compared to conservative management. To assess the functional and radiological outcomes of displaced intra-articular scapular fractures managed with open reduction and internal fixation. 12 patients were retrospectively reviewed and included in the study. Post-operative functional outcomes were assessed using mean quick DASH (Disability of arm, hand and shoulder) score while radiological outcomes were analyzed as percentage of implant cut-through, mal-union, non-union or infection. The mean follow up was 14 months. Mean age was 40 years. The mean quick DASH score was 7.19 +/- 4.86. All of the patients had successful clinical and radiological healing and pain free movements. Open reduction and internal fixation in displaced intra-articular scapular-fractures yields excellent and promising outcomes. PMID- 29322890 TI - An analysis of the course of carpal tunnel syndrome before operation. AB - : This work reports the results of an analysis into the course of carpal tunnel syndrome before operation in 479 patients, predominantly women, aged a mean of 58 years, who were scheduled for carpal tunnel operation. The patients were asked to characterise in detail the course of the disease and what determined the decision to undergo surgery. RESULTS: We identified two specific patterns of CTS course: progressive and preservative/mild. Patients with short-lasting disease suffer first of all from symptoms, but the longer the duration, the more pronounced the functional impairment. In a proportion of patients with longer-lasting disease, spontaneous resolution may occur, for up to a year or more. Bilateral involvement is more common than unilateral and the interval between involvement of the other hand is a mean of 10 months. For most patients the primary motivation to undergo surgery is troublesome symptoms (pain and paraesthesia). Functional impairment is of secondary importance, however, its prominence increases in older patients and in those with longer-lasting disease. PMID- 29322891 TI - Eaton and Littler Ligament Reconstruction for the Painful first Carpometacarpal Joint : Patient satisfaction. AB - The ligamentous reconstruction according to Eaton and Littler (7) was designed to restore the stability of the carpometacarpal joint of the thumb. We evaluated the patients' satisfaction after an Eaton and Littler-procedure as well as possible risk factors in the development of thumb basal joint instability. A retrospective chart review and clinical assessment or telephone survey are executed in 33 patients, with a mean follow-up of 7 years. Only 45% of the patients were satisfied. Within the group of clinical assessed patients, there were significant differences in thumb function comparing operated with not operated side. Overall joint hypermobility can be a contributing factor for this thumb basal joint instability, but has no effect on the outcome after an Eaton-Littler procedure. PMID- 29322892 TI - Could the orthopaedic surgeon deployed in austere setting perform flaps on the leg? AB - The orthopaedic military surgeons deployed in operations are led to perform soft tissue coverage on the lower limb. The purpose of this study was to evaluate if flaps performed by surgeons' non-specialist in reconstructive surgery are associated with good outcome. All patients operated for a flap on the leg in French Forward Surgical Team deployed in theatre of operations between 2003 and 2013 were retrospectively reviewed. Forty-nine patients were included, for a total of 54 flaps' procedures. Indications were open fractures in 25 cases and osseous infections in 29 cases. No flap was performed on French soldiers. All the flaps were pedicle. Outcome was favourable for more than 90% of flaps with no statistical difference between muscular and fasciocutaneous flap and with regard to the indication. In conclusion, an orthopaedic surgeon deployed in austere setting with significant good outcome can perform reconstructive surgery with legs' flaps. PMID- 29322893 TI - Long term self esteem assessment after height increase by lengthening and then nailing. AB - The purpose of the study is to assess the long term psychosocial functioning after height increase, using the external fixation then nailing method. Rosenberg Self-esteem scale and a questionnaire to assess social functioning were completed by 28 patients both preoperatively and at a mean follow-up of 7 years. The mean total score of RSE self-esteem for the 28 patients before lengthening was 21.5 (SD 1.03) (20-24). The mean total score of RSE for the patients 1 year after lengthening was 22 (SD 1.17) (20-24) with highly significant difference (p = 0.002).The mean total RSE self-esteem score after 7 years was 21.7 (SD 1.12) (21 25) with no significant difference (p = 0.11) Improvement was an evident in the short term self esteem after 1 year of follow up of the patients with height increase. On the other hand, there was an evident deterioration in the long term psychosocial evaluation during follow up after 7 years of height increase, returning to near pre-operative levels of self esteem. PMID- 29322894 TI - Patient restrictions following total hip arthroplasty: A national survey. AB - In this prospective nation-wide web based survey we describe the current practice regarding patient restrictions following total hip arthroplasty. A web-based survey involving 20 items was developed and tested prior to administration. The questionnaire included general information, type of restrictions, specification and duration of restrictions. The target population consisted of all orthopaedic surgeons registered with the Dutch Orthopaedic Association working at one of the 94 orthopaedic departments in the Netherlands. The response rate of the orthopaedic departments was 78% (n=74). The majority of orthopaedic departments use patient restrictions following THA. Restrictions were used with different rates per type of surgical approach: anterior (69%), anterolateral (100%), straight lateral (94%) and posterolateral (93%). The duration of these restrictions is generally six weeks. Patient restrictions following THA are current practice, regardless of the surgical approach. PMID- 29322895 TI - Union rates and midterm results after Extended Trochanteric Osteotomy in Revision Hip Arthroplasty. Useful and safe technique. AB - Aim of this study was to evaluate the outcome fol-lowing extended trochanteric osteotomy in series of single surgeon, with emphasis on complications and union of osteotomy. Retrospective Case Series of all patients who had revision total hip replacement surgery performed by senior author between 2003 and 2012, with follow up between 1 and 10 years. 108 cases of revision hip arthroplasty with use of Extended Trochanteric Osteotomy were evaluated. In 101 cases solid bony union was achieved. In 7 cases where the bony union was not established, an asymptomatic and stable position was achieved. In 12 cases greater trochanter fracture was noted postoperatively with proximal migration 5 to 15mm. 1 patient required surgery to re-attach greater trochanter. Extended Trochanteric Osteotomy is a safe and very useful technique that can be used in revision hip surgery. PMID- 29322896 TI - Influence of varus/valgus positioning of the Nanos(r) and Metha(r) short-stemmed prostheses on stress shielding of metaphyseal bone. AB - The aim of this study was to analyze bone remodeling around the Nanos(r) (Smith & Nephew) and Metha(r) (Aesculap AG) implants as a function of varus/valgus stem positioning. In 75 patients with diagnosed coxarthrosis, either Nanos(r) (n= 51) or Metha(r) (n= 24) prostheses were implanted. Digital assessment of plain radiographs immediately, 97 days, and 381 days after THA showed no clinically relevant migration, angulation, or change in offset and center of rotation. The DEXA scans showed significant BMD changes in Gruen zones 1 (-12.8%), 2 (-3.3%), 6 (+6.4%), and 7(-7.8%)(t-test). The pre/postoperative CCD for the Nanos(r) was 129 degrees / 135 degrees and for the Metha(r) 131 degrees / 127 degrees . Linear regression analysis showed no prediction for BMD by postoperative CCD or stem type. In conclusion, there was no clinically-relevant influence on proximal femur BMD according to varus/valgus implantation of the Nanos(r) or Metha(r) prostheses. PMID- 29322897 TI - Survival of the Birmingham hip resurfacing in young men up to 13 years post operatively. AB - The aim of this study was to determine the medium to long term survivorship of the Birmingham Hip Resurfacing prosthesis in an independent series of young men. The medical records and radiographs of all men aged 55 and under who had undergone Birmingham hip resurfacing by the senior author were reviewed. Patients who had not attended recent follow-up or had been previously discharged were contacted by telephone. Between 1999 and 2011 a total of 147 hips were resurfaced in 155 patients (mean age 47 years (19 to 55)) with minimum 5 year follow-up (mean 8.2, range 5 to 13.9 years). Eleven hips were revised giving overall cumulative survival of 88.8% at 13 years. In conclusion, this independent, single surgeon series demonstrates acceptable survival of the Birmingham Hip resurfacing in young men. It remains a valid option in certain cases but we believe alternative bearings are more suitable for most patients. PMID- 29322898 TI - The complications after open hip dislocation in hip surgery. AB - Our purpose is to evaluate the complications of open hip dislocation, which is used as a helpful technique in hip surgery. We have retrospectively reviewed 45 hips of 44 cases who applied open hip dislocation with various indications in our institute between the years 2006-2013. There were 27 males and 17 females whose mean age was 31,9 (range, 11-58) years with mean follow-up time of 56,9 months (range, 13-106). The number of cases with at least one complication related to open hip dislocation was 27. Within our series 14 hips have developed only 1 complication, 1 hip have 2, 10 hips have 3 and 2 hips have 4 different complications. Regarding Dindo-Clavien classification 17 hips were evaluated as Grade I (38%), 3 hips were Grade IIa (7%), 2 hips were Grade IIb (4%) and 5 hips were Grade III (11%). In conclusion, the absence of major complications after open hip dislocation does not make it absolutely safe. Open hip dislocations can only be indicated when trochanteric complications are considered. The patients need to be well informed on potential issues and risks. PMID- 29322899 TI - Is the pelvis stable during supine total hip arthroplasty? AB - Intra- operative changes in pelvic position during total hip arthroplasty (THA) can affect acetabular orientation. We evaluated these changes during supine THA using a proprietary mobile application called PelvicTracker. Twenty- two patients undergoing THA using direct anterior approach were included in the study. In the sagittal plane, the pelvis was extended (anterior tilt) as compared to the start of surgery in 19/ 22 hips at the time of cup implantation (mean extension: 3.1 degrees ; range: 1 degrees -6 degrees ). In the transverse plane, the pelvis was rolled to the opposite side of surgery in 12 hips (mean roll: 2.8 degrees ; range: 1 degrees -5 degrees ), to the same side in 8 hips (mean roll: 3.9 degrees , range: 1 degrees -9 degrees ) and unchanged in 2 hips at the time of cup implantation. Predicted change in cup version of >=5 degrees due to changes in pelvic position was seen in 7/22 (32%) patients. Although minor, changes in pelvic position do occur during supine THA which may affect acetabular orientation. PMID- 29322900 TI - Surgical technique description : Transosseous 'over the top' reconstruction of capsule and tendons in primary total hip arthroplasty using a posterior approach. AB - Dislocation after total hip arthroplasty (THA) remains a devastating complication and a primary cause for revision arthroplasty. Historical data indicate that a posterior approach is associated with a higher dislocation rate. In this study, we present a highly reliable and anatomical reconstruction, based on the biomechanical findings of a previous cadaveric experiment. The posterior soft tissues were repaired in 2 layers. First a reattachment of the posterior orbicular ligament is performed at the anterior capsule. Subsequently a transosseous 'over the top' reinsertion of both capsule and tendons is performed close to there anatomical insertion. We prospectively collected data of 408 THAs from January 2004 until December 2013, through a posterior approach and with a capsule and tendon reconstruction based on a previous cadaveric study. There was a low early dislocation rate in primary THA (one of 408 THAs, 0,2%) and no complications related to the technique. This anatomical reconstruction of both capsule and tendons is associated with a low dislocation rate without complications at the level of the greater trochanter. PMID- 29322901 TI - Primary total hip arthroplasty after acetabular fracture using intra-acetabular bended plates. PMID- 29322902 TI - Comparison between the Harris- and Oxford Hip Score to evaluate outcomes one-year after total hip arthroplasty. AB - Harris Hip Score (HHS) is a surgeon administered measurement for assessing hip function before and after total hip arthroplasties (THA). Patient reported outcome measurements (PROMs) such as the Oxford Hip Score (OHS) are increasingly used. HHS was compaired to the OHS assessing whether the HHS can be replaced by the OHS for clinical evaluation of THAs. All 155 patients (167 THAs) were asked to complete an OHS before and one-year after surgery. The surgeon independently scored the HHS at the same time points. We examined and compared the clinimetric properties of both instruments. Internal consistency reliability of the OHS was notably higher than that of the HHS at all occasions. HHS had a higher effect size (4.1) than the OHS (2.1). Ceiling effect at follow up was 55.6% (HHS) and 36.4% (OHS). Spearman's rank correlation between HHS and OHS was 0.57 at baseline and 0.65 and after one year. The correlation between the change scores was 0.50. The Oxford Hip Score is of good use in quality assessment after THA. PMID- 29322903 TI - Difficult to treat osteoarticulars infections : Focus on Mycobacterial and Fungal infection. AB - Bone and joint infections are rare but often devastating. While bacteria are most commonly encountered organisms, mycobacteria and fungi are less frequent. Management of the latter is often more complex, especially in the presence of foreign material. We will increasingly be faced with mycobacterial and fungal bone infections, as medical conditions and newer therapeutics lead to more immunosuppression. In this article, we will review osteomyelitis, septic arthritis and peri-prosthetic joint infections related to mycobacteria and fungi. PMID- 29322904 TI - Modular bicompartmental knee arthroplasty : Indications, technique, prosthetic design, and results. AB - The shifting demographics of patients with localized knee arthritis, including younger, more active patients, is a chief motivation for mounting interest in tissue preserving surgical substitutes for total knee arthroplasty (TKA). Unlinked, modular bi-compartmental knee arthroplasty (MBKA) is an emerging knee resurfacing approach that provides a conservative alternative to TKA. Arthritis involving both patellofemoral and either medial or lateral tibiofemoral compartments, with no significant deformity or bone deficiency, preserved motion, and intact cruciate ligaments, can be effectively managed with MBKA. It is tailored to treat the pathologic areas of knees with bicompartmental arthritis with the benefit of improved function and tissue conservation. MBKA done in appropriate patients, using precise technique, with appropriate implants has shown to give good short and long term functional results. Long term results using modern MBKA implants are awaited and may further establish the durability and success of the procedure. PMID- 29322905 TI - Pre-discharge postoperative radiographs after primary total knee replacement : tradition or science? AB - Consistent evidence exists on the inutility of immediate postoperative radiographs after a total knee replacement (TKR). We hypothesized that eliminating the pre-discharge film would not have any effect on the postoperative patient outcomes. Retrospective analysis of prospectively collected data was performed on 220 knees. Patients undergoing a simple primary TKR operated by 2 surgeons (Surgeon A and B) from January 2013 to July 2015 were divided into 2 groups (Groups 1 and 2 having 112 and 108 knees respectively). While Surgeon A routinely asked for the second postoperative day pre-discharge radiograph, Surgeon B directly performed weight bearing radiographs 6 weeks postoperatively. Greater knee pain was seen in Group 1 (p = 0.01). No changes in rehabilitation protocols based on pre-discharge radiographs, complications, medico-legal issues or revision surgery could be identified in any patient. The quality of the pre discharge radiographs was adequate in 65 of the 112 knees (58%). A cost reduction of approximately $220 per patient was observed with the exclusion of the pre discharge film. Eliminating routine inpatient pre-discharge radio-graphs after simple primary TKR does not alter the rehabilitation protocol, identify any of the standard complication or have any medico-legal implications. On the contrary, these films seem to increase postoperative pain and costs. PMID- 29322906 TI - Distal femoral medial closing wedge osteotomy for degenerative valgus knee : mid term results in active patients. AB - Distal femoral medial closing wedge osteotomy (DFMCWO) may be a valuable treatment for arthritic valgus knees in young and active adults, with the possible aim of procrastinating knee replacement. 32 valgus knees (mean age : 41.4+/-11.2) treated with DFMCWO were retrospectively reviewed. All the knees had a lateral compartment osteoarthritis graded I-II-III according to Kellgren Lawrence classification. 20 knees had osteochondral lesions, treated with microfractures (8) or bone marrow derived cells transplantation (12). Patients were clinically (IKDC, KOOS, NRS, Tegner) and radiologically evaluated. A mean follow-up of 62.12+/-15.65 was achieved. KOOS score peaked at 24 months, showed a decremental trend, achieved a final results of 79,59+/-17,14. Similar trend was evident for IKDC. The final NRS score was 2.73+/-1.82 ; the final Tegner score was 4.81+/-1.56. Radiographs showed degenerative progression in 5 knees : 2 patients underwent knee replacement at the final follow-up. DFMCWO is an effective treatment to treat osteoarthritic symptomatology, delay degenerative progression and avoid knee replacement in valgus knees at mid-term follow-up. PMID- 29322907 TI - "Turn laterally to the left!". The need for uniform C-arm communication terminology during orthopaedic trauma surgery. AB - To avoid disturbed teamwork, unnecessary radiation exposure, and procedural delays, we designed and tested a uniform communication language for use in fluoroscopy-assisted surgical procedures. Input of surgeons and radiographers was used to create a set of commands. The potential benefit of this terminology was explored in an experimental setting. There was a tremendous diversity in the currently used terminology. Use of the newly designed terminology showed a reduction of procedural time and amount of images needed. Our first standardized Dutch language terminology can reduce total fluoroscopy time, number of images acquired, and potentially radiation exposure. For Dutch speaking colleagues, the developed terminology is freely available for use in their OR. PMID- 29322908 TI - Prevalence of Bilateral Involvement in Patients with Discoid Lateral Meniscus : a Systematic Literature Review. AB - We assessed the prevalence of bilateral discoid lateral meniscus (BDLM), as well as its subtypes, among patients with symptomatic DLM. Medline, Cochrane, EMBASE, and Google Scholar were searched until September 18, 2015. All studies evaluating patients with BDLM who underwent MRI, macroscopic observation, and/or arthroscopy for the diagnosis of discoid meniscus/menisci were included. Eight clinical studies with a total of 583 DLM patients examined including 103 cadavers. There was a male predominance and average age of BDLM patients ranged from 10.4 to 39.9 years. The reported prevalence was higher in East Asian countries (72.7 to 97%) than rest of the world (6.8 to 90%). Homotypes were much more common than heterotype, and ranged from 82.9 to 91.7% of all BDLM patients. The actual prevalence of BDLM is likely higher. The findings provide a glimpse of the wide spread this disorder potentially has in East Asia. PMID- 29322909 TI - Operative versus Non operative treatment of displaced intraarticular fracture of calcaneum: a meta-analysis of randomized controlled trials. AB - Various studies comparing operative and non-operative intervention for displaced intrarticular calcaneal fractures have reported conflicting findings in the past. The objective of this meta-analysis was to compare the efficacy and safety of open reduction and internal fixation (ORIF) vis-a-vis conservative management. Relevant randomized controlled trials (RCTs) comparing operative and non operative intervention for displaced intraarticular calcaneal fractures were assessed and included in this meta-analysis. Data was extracted independently and methodological quality was further assessed. The inclusion criteria of this meta analysis were: randomized controlled trials comparing operative with non operative intervention for displaced intra-articular fractures of calcaneum and reporting atleast one of the main outcomes as failure to resume pre-injury work, residual pain and other complications. Eight randomized controlled trials fulfilled the criteria for this meta-analysis. Pooled results showed that patients managed conservatively failed to resume pre-injury work (RR 0.60, 95% CI = 0.37-0.98, P = 0.04). However operative intervention was associated with more complications (RR 1.74, 95% CI = 1.28 to 2.37, P = 0.0005). There was no statistically significant difference in residual pain (RR 0.73 95% CI = 0.40 1.36, P = 0.33) and reoperation (RR = 0.75, 95% CI = 0.48-1.16, P = 0.20) between the two groups. Surgery can benefit patients with calcaneal fracture and increases their likelihood to resume pre-injury work. However, the complication rates are significantly higher in the operative group. Since the included trials have used different scores to measure patient outcomes, hence little effective data could. PMID- 29322910 TI - Flexible memory-alloy instrumentation for unilateral transpedicular kyphoplasty and guided cement augmentation of the thoracic spine. AB - The purpose of this novel study was to investigate the feasibility of unilateral transpedicular balloon kyphoplasty particularly of the upper thoracic vertebrae using an 11- gauge balloon and cement inserter, and to study the morphological parameters of the thoracic spine pedicles. We used four fresh frozen cadaveric thoracic spines with intact rib cages and skin for kyphoplasty from T1 to T12 vertebrae under C-arm fluoroscopy. The most limiting width of the pedicles 2.46+/ 0.32mm was in the middle levels (T5-T8). The absolute minimum height of the pedicles was at T1 (3.80-3.87mm). All regions of the vertebral body were effectively targeted for cement augmentation. The average cement load of all the vertebral bodies was 43,22%. Using the kyphoplasty technique in combination with the pre-bent 11mm memory-alloy cement inserter allowed targeting of the desired position of the vertebral body for effective vertebral body cement augmentation. PMID- 29322911 TI - Comparison of lumbar pedicular dynamic stabilisation systems versus fusion for the treatment of lumbar degenerative disc disease: A meta-analysis. AB - This study aimed to systematically compare the safety, effectiveness and radiological changes after lumbar pedicular dynamic stabilisation systems and fusion to treat lumbar degenerative disc disease . All studies that were performed to compare various lumbar pedicular dynamic stabilisation systems with any lumbar fusion to treat lumbar degenerative disc disease and were published until April 30, 2015 were acquired through a comprehensive search in various databases. A meta-analysis was performed after the methodological qualities of trials were assessed and after data were extracted. Sixteen trials with 881 patients with a short-term follow-up (within 2 years) and a middle-term follow-up (2 to 4 years) were identified. Patients treated with lumbar pedicular dynamic stabilisation systems experienced more significant advantages in terms of operation time, intra-operative blood loss, complications and adjacent segment degeneration/disease development than those treated with lumbar fusion. The two groups did not significantly differ in terms of improvement in Oswestry Disability Index, visual analogue scale scores, satisfaction rate of operation and range of motion of adjacent segments. Lumbar pedicular dynamic stabilisation systems is superior to lumbar fusion to some extent, although some of its advantages have yet to be verified and compared with those of lumbar fusion. However, the two interventions were not significantly different in terms of relief in symptoms, functional recovery and motion preservation. Thus, lumbar pedicular dynamic stabilisation systems is recommended for its safety. A prudent attitude is necessary to choose between these interventions on the basis of effectiveness and changes in adjacent segments before a large-scale and long-term follow-up study can be performed. PMID- 29322912 TI - Usage of cell nomenclature in biomedical literature. AB - BACKGROUND: Cell lines and cell types are extensively studied in biomedical research yielding to a significant amount of publications each year. Identifying cell lines and cell types precisely in publications is crucial for science reproducibility and knowledge integration. There are efforts for standardisation of the cell nomenclature based on ontology development to support FAIR principles of the cell knowledge. However, it is important to analyse the usage of cell nomenclature in publications at a large scale for understanding the level of uptake of cell nomenclature in literature by scientists. In this study, we analyse the usage of cell nomenclature, both in Vivo, and in Vitro in biomedical literature by using text mining methods and present our results. RESULTS: We identified 59% of the cell type classes in the Cell Ontology and 13% of the cell line classes in the Cell Line Ontology in the literature. Our analysis showed that cell line nomenclature is much more ambiguous compared to the cell type nomenclature. However, trends indicate that standardised nomenclature for cell lines and cell types are being increasingly used in publications by the scientists. CONCLUSIONS: Our findings provide an insight to understand how experimental cells are described in publications and may allow for an improved standardisation of cell type and cell line nomenclature as well as can be utilised to develop efficient text mining applications on cell types and cell lines. All data generated in this study is available at https://github.com/shenay/CellNomenclatureStudy. PMID- 29322913 TI - Cell type discovery and representation in the era of high-content single cell phenotyping. AB - BACKGROUND: A fundamental characteristic of multicellular organisms is the specialization of functional cell types through the process of differentiation. These specialized cell types not only characterize the normal functioning of different organs and tissues, they can also be used as cellular biomarkers of a variety of different disease states and therapeutic/vaccine responses. In order to serve as a reference for cell type representation, the Cell Ontology has been developed to provide a standard nomenclature of defined cell types for comparative analysis and biomarker discovery. Historically, these cell types have been defined based on unique cellular shapes and structures, anatomic locations, and marker protein expression. However, we are now experiencing a revolution in cellular characterization resulting from the application of new high-throughput, high-content cytometry and sequencing technologies. The resulting explosion in the number of distinct cell types being identified is challenging the current paradigm for cell type definition in the Cell Ontology. RESULTS: In this paper, we provide examples of state-of-the-art cellular biomarker characterization using high-content cytometry and single cell RNA sequencing, and present strategies for standardized cell type representations based on the data outputs from these cutting-edge technologies, including "context annotations" in the form of standardized experiment metadata about the specimen source analyzed and marker genes that serve as the most useful features in machine learning-based cell type classification models. We also propose a statistical strategy for comparing new experiment data to these standardized cell type representations. CONCLUSION: The advent of high-throughput/high-content single cell technologies is leading to an explosion in the number of distinct cell types being identified. It will be critical for the bioinformatics community to develop and adopt data standard conventions that will be compatible with these new technologies and support the data representation needs of the research community. The proposals enumerated here will serve as a useful starting point to address these challenges. PMID- 29322914 TI - Cell ontology in an age of data-driven cell classification. AB - BACKGROUND: Data-driven cell classification is becoming common and is now being implemented on a massive scale by projects such as the Human Cell Atlas. The scale of these efforts poses a challenge. How can the results be made searchable and accessible to biologists in general? How can they be related back to the rich classical knowledge of cell-types, anatomy and development? How will data from the various types of single cell analysis be made cross-searchable? Structured annotation with ontology terms provides a potential solution to these problems. In turn, there is great potential for using the outputs of data-driven cell classification to structure ontologies and integrate them with data-driven cell query systems. RESULTS: Focusing on examples from the mouse retina and Drosophila olfactory system, I present worked examples illustrating how formalization of cell ontologies can enhance querying of data-driven cell-classifications and how ontologies can be extended by integrating the outputs of data-driven cell classifications. CONCLUSIONS: Annotation with ontology terms can play an important role in making data driven classifications searchable and query-able, but fulfilling this potential requires standardized formal patterns for structuring ontologies and annotations and for linking ontologies to the outputs of data-driven classification. PMID- 29322915 TI - Comparison, alignment, and synchronization of cell line information between CLO and EFO. AB - BACKGROUND: The Experimental Factor Ontology (EFO) is an application ontology driven by experimental variables including cell lines to organize and describe the diverse experimental variables and data resided in the EMBL-EBI resources. The Cell Line Ontology (CLO) is an OBO community-based ontology that contains information of immortalized cell lines and relevant experimental components. EFO integrates and extends ontologies from the bio-ontology community to drive a number of practical applications. It is desirable that the community shares design patterns and therefore that EFO reuses the cell line representation from the Cell Line Ontology (CLO). There are, however, challenges to be addressed when developing a common ontology design pattern for representing cell lines in both EFO and CLO. RESULTS: In this study, we developed a strategy to compare and map cell line terms between EFO and CLO. We examined Cellosaurus resources for EFO CLO cross-references. Text labels of cell lines from both ontologies were verified by biological information axiomatized in each source. The study resulted in the identification 873 EFO-CLO aligned and 344 EFO unique immortalized permanent cell lines. All of these cell lines were updated to CLO and the cell line related information was merged. A design pattern that integrates EFO and CLO was also developed. CONCLUSION: Our study compared, aligned, and synchronized the cell line information between CLO and EFO. The final updated CLO will be examined as the candidate ontology to import and replace eligible EFO cell line classes thereby supporting the interoperability in the bio-ontology domain. Our mapping pipeline illustrates the use of ontology in aiding biological data standardization and integration through the biological and semantics content of cell lines. PMID- 29322916 TI - Cells in experimental life sciences - challenges and solution to the rapid evolution of knowledge. AB - Cell cultures used in biomedical experiments come in the form of both sample biopsy primary cells, and maintainable immortalised cell lineages. The rise of bioinformatics and high-throughput technologies has led us to the requirement of ontology representation of cell types and cell lines. The Cell Ontology (CL) and Cell Line Ontology (CLO) have long been established as reference ontologies in the OBO framework. We have compiled a series of the challenges and the proposals of solutions in this CELLS (Cells in ExperimentaL Life Sciences) thematic series that cover the grounds of standing issues and the directions, which were discussed in the First International Workshop on CELLS at the the International Conference on Biomedical Ontology (ICBO). This workshop focused on the extension of the current CL and CLO to cover a wider set of biological questions and challenges needing semantic infrastructure for information modeling. We discussed data-driven use cases that leverage linkage of CL, CLO and other bio-ontologies. This is an established approach in data-driven ontologies such as the Experimental Factor Ontology (EFO), and the Ontology for Biomedical Investigation (OBI). The First International Workshop on CELLS at the International Conference on Biomedical Ontology has brought together experimental biologists and biomedical ontologists to discuss solutions to organizing and representing the rapidly evolving knowledge gained from experimental cells. The workshop has successfully identified the areas of challenge, and the gap in connecting the two domains of knowledge. The outcome of this workshop yielded practical implementation plans to filled in this gap.This CELLS workshop also provided a venue for panel discussions of innovative solutions as well as challenges in the development and applications of biomedical ontologies to represent and analyze experimental cell data. PMID- 29322917 TI - Identification of natural antimicrobial peptides from bacteria through metagenomic and metatranscriptomic analysis of high-throughput transcriptome data of Taiwanese oolong teas. AB - BACKGROUND: Anti-microbial peptides (AMPs), naturally encoded by genes and generally containing 12-100 amino acids, are crucial components of the innate immune system and can protect the host from various pathogenic bacteria and viruses. In recent years, the widespread use of antibiotics has resulted in the rapid growth of antibiotic-resistant microorganisms that often induce critical infection and pathogenesis. Recently, the advent of high-throughput technologies has led molecular biology into a data surge in both the amount and scope of data. For instance, next-generation sequencing technology has been applied to generate large-scale sequencing reads from foods, water, soil, air, and specimens to identify microbiota and their functions based on metagenomics and metatranscriptomics, respectively. In addition, oolong tea is partially fermented and is the most widely produced tea in Taiwan. Many studies have shown the benefits of oolong tea in inhibiting obesity, reducing dental plaque deposition, antagonizing allergic immune responses, and alleviating the effects of aging. However, the microbes and their functions present in oolong tea remain unknown. RESULTS: To understand the relationship between Taiwanese oolong teas and bacterial communities, we designed a novel bioinformatics scheme to identify AMPs and their functional types based on metagenomics and metatranscriptomic analysis of high-throughput transcriptome data. Four types of oolong teas (Dayuling tea, Alishan tea, Jinxuan tea, and Oriental Beauty tea) were subjected to 16S ribosomal DNA and total RNA extraction and sequencing. Metagenomics analysis results revealed that Oriental Beauty tea exhibited greater bacterial diversity than other teas. The most common bacterial families across all tea types were Bacteroidaceae (21.7%), Veillonellaceae (22%), and Fusobacteriaceae (12.3%). Metatranscriptomics analysis results revealed that the dominant bacteria species across all tea types were Escherichia coli, Bacillus subtilis, and Chryseobacterium sp. StRB126, which were subjected to further functional analysis. A total of 8194 (6.5%), 26,220 (6.1%), 5703 (5.8%), and 106,183 (7.8%) reads could be mapped to AMPs. CONCLUSION: We found that the distribution of anti gram-positive and anti-gram-negative AMPs is highly correlated with the distribution of gram-positive and gram-negative bacteria in Taiwanese oolong tea samples. PMID- 29322918 TI - A linear programming computational framework integrates phosphor-proteomics and prior knowledge to predict drug efficacy. AB - BACKGROUND: In recent years, the integration of 'omics' technologies, high performance computation, and mathematical modeling of biological processes marks that the systems biology has started to fundamentally impact the way of approaching drug discovery. The LINCS public data warehouse provides detailed information about cell responses with various genetic and environmental stressors. It can be greatly helpful in developing new drugs and therapeutics, as well as improving the situations of lacking effective drugs, drug resistance and relapse in cancer therapies, etc. RESULTS: In this study, we developed a Ternary status based Integer Linear Programming (TILP) method to infer cell-specific signaling pathway network and predict compounds' treatment efficacy. The novelty of our study is that phosphor-proteomic data and prior knowledge are combined for modeling and optimizing the signaling network. To test the power of our approach, a generic pathway network was constructed for a human breast cancer cell line MCF7; and the TILP model was used to infer MCF7-specific pathways with a set of phosphor-proteomic data collected from ten representative small molecule chemical compounds (most of them were studied in breast cancer treatment). Cross validation indicated that the MCF7-specific pathway network inferred by TILP were reliable predicting a compound's efficacy. Finally, we applied TILP to re optimize the inferred cell-specific pathways and predict the outcomes of five small compounds (carmustine, doxorubicin, GW-8510, daunorubicin, and verapamil), which were rarely used in clinic for breast cancer. In the simulation, the proposed approach facilitates us to identify a compound's treatment efficacy qualitatively and quantitatively, and the cross validation analysis indicated good accuracy in predicting effects of five compounds. CONCLUSIONS: In summary, the TILP model is useful for discovering new drugs for clinic use, and also elucidating the potential mechanisms of a compound to targets. PMID- 29322919 TI - Hadamard Kernel SVM with applications for breast cancer outcome predictions. AB - BACKGROUND: Breast cancer is one of the leading causes of deaths for women. It is of great necessity to develop effective methods for breast cancer detection and diagnosis. Recent studies have focused on gene-based signatures for outcome predictions. Kernel SVM for its discriminative power in dealing with small sample pattern recognition problems has attracted a lot attention. But how to select or construct an appropriate kernel for a specified problem still needs further investigation. RESULTS: Here we propose a novel kernel (Hadamard Kernel) in conjunction with Support Vector Machines (SVMs) to address the problem of breast cancer outcome prediction using gene expression data. Hadamard Kernel outperform the classical kernels and correlation kernel in terms of Area under the ROC Curve (AUC) values where a number of real-world data sets are adopted to test the performance of different methods. CONCLUSIONS: Hadamard Kernel SVM is effective for breast cancer predictions, either in terms of prognosis or diagnosis. It may benefit patients by guiding therapeutic options. Apart from that, it would be a valuable addition to the current SVM kernel families. We hope it will contribute to the wider biology and related communities. PMID- 29322920 TI - Investigation and identification of functional post-translational modification sites associated with drug binding and protein-protein interactions. AB - BACKGROUND: Protein post-translational modification (PTM) plays an essential role in various cellular processes that modulates the physical and chemical properties, folding, conformation, stability and activity of proteins, thereby modifying the functions of proteins. The improved throughput of mass spectrometry (MS) or MS/MS technology has not only brought about a surge in proteome-scale studies, but also contributed to a fruitful list of identified PTMs. However, with the increase in the number of identified PTMs, perhaps the more crucial question is what kind of biological mechanisms these PTMs are involved in. This is particularly important in light of the fact that most protein-based pharmaceuticals deliver their therapeutic effects through some form of PTM. Yet, our understanding is still limited with respect to the local effects and frequency of PTM sites near pharmaceutical binding sites and the interfaces of protein-protein interaction (PPI). Understanding PTM's function is critical to our ability to manipulate the biological mechanisms of protein. RESULTS: In this study, to understand the regulation of protein functions by PTMs, we mapped 25,835 PTM sites to proteins with available three-dimensional (3D) structural information in the Protein Data Bank (PDB), including 1785 modified PTM sites on the 3D structure. Based on the acquired structural PTM sites, we proposed to use five properties for the structural characterization of PTM substrate sites: the spatial composition of amino acids, residues and side-chain orientations surrounding the PTM substrate sites, as well as the secondary structure, division of acidity and alkaline residues, and solvent-accessible surface area. We further mapped the structural PTM sites to the structures of drug binding and PPI sites, identifying a total of 1917 PTM sites that may affect PPI and 3951 PTM sites associated with drug-target binding. An integrated analytical platform (CruxPTM), with a variety of methods and online molecular docking tools for exploring the structural characteristics of PTMs, is presented. In addition, all tertiary structures of PTM sites on proteins can be visualized using the JSmol program. CONCLUSION: Resolving the function of PTM sites is important for understanding the role that proteins play in biological mechanisms. Our work attempted to delineate the structural correlation between PTM sites and PPI or drug-target binding. CurxPTM could help scientists narrow the scope of their PTM research and enhance the efficiency of PTM identification in the face of big proteome data. CruxPTM is now available at http://csb.cse.yzu.edu.tw/CruxPTM/ . PMID- 29322921 TI - Tensor decomposition-based unsupervised feature extraction identifies candidate genes that induce post-traumatic stress disorder-mediated heart diseases. AB - BACKGROUND: Although post-traumatic stress disorder (PTSD) is primarily a mental disorder, it can cause additional symptoms that do not seem to be directly related to the central nervous system, which PTSD is assumed to directly affect. PTSD-mediated heart diseases are some of such secondary disorders. In spite of the significant correlations between PTSD and heart diseases, spatial separation between the heart and brain (where PTSD is primarily active) prevents researchers from elucidating the mechanisms that bridge the two disorders. Our purpose was to identify genes linking PTSD and heart diseases. METHODS: In this study, gene expression profiles of various murine tissues observed under various types of stress or without stress were analyzed in an integrated manner using tensor decomposition (TD). RESULTS: Based upon the obtained features, ~ 400 genes were identified as candidate genes that may mediate heart diseases associated with PTSD. Various gene enrichment analyses supported biological reliability of the identified genes. Ten genes encoding protein-, DNA-, or mRNA-interacting proteins ILF2, ILF3, ESR1, ESR2, RAD21, HTT, ATF2, NR3C1, TP53, and TP63-were found to be likely to regulate expression of most of these ~ 400 genes and therefore are candidate primary genes that cause PTSD-mediated heart diseases. Approximately 400 genes in the heart were also found to be strongly affected by various drugs whose known adverse effects are related to heart diseases and/or fear memory conditioning; these data support the reliability of our findings. CONCLUSIONS: TD based unsupervised feature extraction turned out to be a useful method for gene selection and successfully identified possible genes causing PTSD-mediated heart diseases. PMID- 29322922 TI - Analysis of viral diversity for vaccine target discovery. AB - BACKGROUND: Viral vaccine target discovery requires understanding the diversity of both the virus and the human immune system. The readily available and rapidly growing pool of viral sequence data in the public domain enable the identification and characterization of immune targets relevant to adaptive immunity. A systematic bioinformatics approach is necessary to facilitate the analysis of such large datasets for selection of potential candidate vaccine targets. RESULTS: This work describes a computational methodology to achieve this analysis, with data of dengue, West Nile, hepatitis A, HIV-1, and influenza A viruses as examples. Our methodology has been implemented as an analytical pipeline that brings significant advancement to the field of reverse vaccinology, enabling systematic screening of known sequence data in nature for identification of vaccine targets. This includes key steps (i) comprehensive and extensive collection of sequence data of viral proteomes (the virome), (ii) data cleaning, (iii) large-scale sequence alignments, (iv) peptide entropy analysis, (v) intra- and inter-species variation analysis of conserved sequences, including human homology analysis, and (vi) functional and immunological relevance analysis. CONCLUSION: These steps are combined into the pipeline ensuring that a more refined process, as compared to a simple evolutionary conservation analysis, will facilitate a better selection of vaccine targets and their prioritization for subsequent experimental validation. PMID- 29322923 TI - A polynomial based model for cell fate prediction in human diseases. AB - BACKGROUND: Cell fate regulation directly affects tissue homeostasis and human health. Research on cell fate decision sheds light on key regulators, facilitates understanding the mechanisms, and suggests novel strategies to treat human diseases that are related to abnormal cell development. RESULTS: In this study, we proposed a polynomial based model to predict cell fate. This model was derived from Taylor series. As a case study, gene expression data of pancreatic cells were adopted to test and verify the model. As numerous features (genes) are available, we employed two kinds of feature selection methods, i.e. correlation based and apoptosis pathway based. Then polynomials of different degrees were used to refine the cell fate prediction function. 10-fold cross-validation was carried out to evaluate the performance of our model. In addition, we analyzed the stability of the resultant cell fate prediction model by evaluating the ranges of the parameters, as well as assessing the variances of the predicted values at randomly selected points. Results show that, within both the two considered gene selection methods, the prediction accuracies of polynomials of different degrees show little differences. Interestingly, the linear polynomial (degree 1 polynomial) is more stable than others. When comparing the linear polynomials based on the two gene selection methods, it shows that although the accuracy of the linear polynomial that uses correlation analysis outcomes is a little higher (achieves 86.62%), the one within genes of the apoptosis pathway is much more stable. CONCLUSIONS: Considering both the prediction accuracy and the stability of polynomial models of different degrees, the linear model is a preferred choice for cell fate prediction with gene expression data of pancreatic cells. The presented cell fate prediction model can be extended to other cells, which may be important for basic research as well as clinical study of cell development related diseases. PMID- 29322924 TI - Detecting causality from short time-series data based on prediction of topologically equivalent attractors. PMID- 29322925 TI - Subtype identification from heterogeneous TCGA datasets on a genomic scale by multi-view clustering with enhanced consensus. AB - BACKGROUND: The Cancer Genome Atlas (TCGA) has collected transcriptome, genome and epigenome information for over 20 cancers from thousands of patients. The availability of these diverse data types makes it necessary to combine these data to capture the heterogeneity of biological processes and phenotypes and further identify homogeneous subtypes for cancers such as breast cancer. Many multi-view clustering approaches are proposed to discover clusters across different data types. The problem is challenging when different data types show poor agreement of clustering structure. RESULTS: In this work, we first propose a multi-view clustering approach with consensus (CMC), which tries to find consensus kernels among views by using Hilbert Schmidt Independence Criterion. To tackle the problem when poor agreement among views exists, we further propose a multi-view clustering approach with enhanced consensus (ECMC) to solve this problem by decomposing the kernel information in each view into a consensus part and a disagreement part. The consensus parts for different views are supposed to be similar, and the disagreement parts should be independent with the consensus parts. Both the CMC and ECMC models can be solved by alternative updating with semi-definite programming. Our experiments on both simulation datasets and real world benchmark datasets show that ECMC model could achieve higher clustering accuracies than other state-of-art multi-view clustering approaches. We also apply the ECMC model to integrate mRNA expression, DNA methylation and microRNA (miRNA) expression data for five cancer data sets, and the survival analysis show that our ECMC model outperforms other methods when identifying cancer subtypes. By Fisher's combination test method, we found that three computed subtypes roughly correspond to three known breast cancer subtypes including luminal B, HER2 and basal-like subtypes. CONCLUSION: Integrating heterogeneous TCGA datasets by our proposed multi-view clustering approach ECMC could effectively identify cancer subtypes. PMID- 29322926 TI - Construction and analysis of gene-gene dynamics influence networks based on a Boolean model. AB - BACKGROUND: Identification of novel gene-gene relations is a crucial issue to understand system-level biological phenomena. To this end, many methods based on a correlation analysis of gene expressions or structural analysis of molecular interaction networks have been proposed. They have a limitation in identifying more complicated gene-gene dynamical relations, though. RESULTS: To overcome this limitation, we proposed a measure to quantify a gene-gene dynamical influence (GDI) using a Boolean network model and constructed a GDI network to indicate existence of a dynamical influence for every ordered pair of genes. It represents how much a state trajectory of a target gene is changed by a knockout mutation subject to a source gene in a gene-gene molecular interaction (GMI) network. Through a topological comparison between GDI and GMI networks, we observed that the former network is denser than the latter network, which implies that there exist many gene pairs of dynamically influencing but molecularly non-interacting relations. In addition, a larger number of hub genes were generated in the GDI network. On the other hand, there was a correlation between these networks such that the degree value of a node was positively correlated to each other. We further investigated the relationships of the GDI value with structural properties and found that there are negative and positive correlations with the length of a shortest path and the number of paths, respectively. In addition, a GDI network could predict a set of genes whose steady-state expression is affected in E. coli gene-knockout experiments. More interestingly, we found that the drug-targets with side-effects have a larger number of outgoing links than the other genes in the GDI network, which implies that they are more likely to influence the dynamics of other genes. Finally, we found biological evidences showing that the gene pairs which are not molecularly interacting but dynamically influential can be considered for novel gene-gene relationships. CONCLUSION: Taken together, construction and analysis of the GDI network can be a useful approach to identify novel gene-gene relationships in terms of the dynamical influence. PMID- 29322928 TI - Constraint-based perturbation analysis with cluster Newton method: a case study of personalized parameter estimations with irinotecan whole-body physiologically based pharmacokinetic model. AB - BACKGROUND: Drug development considering individual varieties among patients becomes crucial to improve clinical development success rates and save healthcare costs. As a useful tool to predict individual phenomena and correlations among drug characteristics and individual varieties, recently, whole-body physiologically based pharmacokinetic (WB- PBPK) models are getting more attention. WB-PBPK models generally have a lot of drug-related parameters that need to be estimated, and the estimations are difficult because the observed data are limited. Furthermore, parameter estimation in WB-PBPK models may cause overfitting when applying to individual clinical data such as urine/feces drug excretion for each patient in which Cluster Newton Method (CNM) is applicable for parameter estimation. In order to solve this issue, we came up with the idea of constraint-based perturbation analysis of the CNM. The effectiveness of our approach is demonstrated in the case of irinotecan WB-PBPK model using common organ-specific tissue-plasma partition coefficients (Kp) among the patients as constraints in WB-PBPK parameter estimation. RESULTS: We find strong correlations between age, renal clearance and liver functions in irinotecan WB-PBPK model with personalized physiological parameters by observing the distributions of optimized values of strong convergence drug-related parameters using constraint-based perturbation analysis on CNM. The constraint-based perturbation analysis consists of the following three steps: (1) Estimation of all drug-related parameters for each patient; the parameters include organ-specific Kp. (2) Fixing suitable values of Kp for each organ among all patients identically. (3) Re-estimation of all drug-related parameters other than Kp by using the fixed values of Kp as constraints of CNM. CONCLUSIONS: Constraint-based perturbation analysis could yield new findings when using CNM with appropriate constraints. This method is a new technique to find suitable values and important insights that are masked by CNM without constraints. PMID- 29322927 TI - CPredictor3.0: detecting protein complexes from PPI networks with expression data and functional annotations. AB - BACKGROUND: Effectively predicting protein complexes not only helps to understand the structures and functions of proteins and their complexes, but also is useful for diagnosing disease and developing new drugs. Up to now, many methods have been developed to detect complexes by mining dense subgraphs from static protein protein interaction (PPI) networks, while ignoring the value of other biological information and the dynamic properties of cellular systems. RESULTS: In this paper, based on our previous works CPredictor and CPredictor2.0, we present a new method for predicting complexes from PPI networks with both gene expression data and protein functional annotations, which is called CPredictor3.0. This new method follows the viewpoint that proteins in the same complex should roughly have similar functions and are active at the same time and place in cellular systems. We first detect active proteins by using gene express data of different time points and cluster proteins by using gene ontology (GO) functional annotations, respectively. Then, for each time point, we do set intersections with one set corresponding to active proteins generated from expression data and the other set corresponding to a protein cluster generated from functional annotations. Each resulting unique set indicates a cluster of proteins that have similar function(s) and are active at that time point. Following that, we map each cluster of active proteins of similar function onto a static PPI network, and get a series of induced connected subgraphs. We treat these subgraphs as candidate complexes. Finally, by expanding and merging these candidate complexes, the predicted complexes are obtained. We evaluate CPredictor3.0 and compare it with a number of existing methods on several PPI networks and benchmarking complex datasets. The experimental results show that CPredictor3.0 achieves the highest F1-measure, which indicates that CPredictor3.0 outperforms these existing method in overall. CONCLUSION: CPredictor3.0 can serve as a promising tool of protein complex prediction. PMID- 29322929 TI - Ontology-based systematic representation and analysis of traditional Chinese drugs against rheumatism. AB - BACKGROUND: Rheumatism represents any disease condition marked with inflammation and pain in the joints, muscles, or connective tissues. Many traditional Chinese drugs have been used for a long time to treat rheumatism. However, a comprehensive information source for these drugs is still missing, and their anti rheumatism mechanisms remain unclear. An ontology for anti-rheumatism traditional Chinese drugs would strongly support the representation, analysis, and understanding of these drugs. RESULTS: In this study, we first systematically collected reported information about 26 traditional Chinese decoction pieces drugs, including their chemical ingredients and adverse events (AEs). By mostly reusing terms from existing ontologies (e.g., TCMDPO for traditional Chinese medicines, NCBITaxon for taxonomy, ChEBI for chemical elements, and OAE for adverse events) and making semantic axioms linking different entities, we developed the Ontology of Chinese Medicine for Rheumatism (OCMR) that includes over 3000 class terms. Our OCMR analysis found that these 26 traditional Chinese decoction pieces are made from anatomic entities (e.g., root and stem) from 3 Bilateria animals and 23 Mesangiospermae plants. Anti-inflammatory and antineoplastic roles are important for anti-rheumatism drugs. Using the total of 555 unique ChEBI chemical entities identified from these drugs, our ChEBI-based classification analysis identified 18 anti-inflammatory, 33 antineoplastic chemicals, and 9 chemicals (including 3 diterpenoids and 3 triterpenoids) having both anti-inflammatory and antineoplastic roles. Furthermore, our study detected 22 diterpenoids and 23 triterpenoids, including 16 pentacyclic triterpenoids that are likely bioactive against rheumatism. Six drugs were found to be associated with 184 unique AEs, including three AEs (i.e., dizziness, nausea and vomiting, and anorexia) each associated with 5 drugs. Several chemical entities are classified as neurotoxins (e.g., diethyl phthalate) and allergens (e.g., eugenol), which may explain the formation of some TCD AEs. The OCMR could be efficiently queried for useful information using SPARQL scripts. CONCLUSIONS: The OCMR ontology was developed to systematically represent 26 traditional anti rheumatism Chinese drugs and their related information. The OCMR analysis identified possible anti-rheumatism and AE mechanisms of these drugs. Our novel ontology-based approach can also be applied to systematic representation and analysis of other traditional Chinese drugs. PMID- 29322930 TI - Ontological representation, integration, and analysis of LINCS cell line cells and their cellular responses. AB - BACKGROUND: Aiming to understand cellular responses to different perturbations, the NIH Common Fund Library of Integrated Network-based Cellular Signatures (LINCS) program involves many institutes and laboratories working on over a thousand cell lines. The community-based Cell Line Ontology (CLO) is selected as the default ontology for LINCS cell line representation and integration. RESULTS: CLO has consistently represented all 1097 LINCS cell lines and included information extracted from the LINCS Data Portal and ChEMBL. Using MCF 10A cell line cells as an example, we demonstrated how to ontologically model LINCS cellular signatures such as their non-tumorigenic epithelial cell type, three dimensional growth, latrunculin-A-induced actin depolymerization and apoptosis, and cell line transfection. A CLO subset view of LINCS cell lines, named LINCS CLOview, was generated to support systematic LINCS cell line analysis and queries. In summary, LINCS cell lines are currently associated with 43 cell types, 131 tissues and organs, and 121 cancer types. The LINCS-CLO view information can be queried using SPARQL scripts. CONCLUSIONS: CLO was used to support ontological representation, integration, and analysis of over a thousand LINCS cell line cells and their cellular responses. PMID- 29322931 TI - Differential responses of innate immunity triggered by different subtypes of influenza a viruses in human and avian hosts. AB - BACKGROUND: Innate immunity provides first line of defense against viral infections. The interactions between hosts and influenza A virus and the response of host innate immunity to viral infection are critical determinants for the pathogenicity or virulence of influenza A viruses. This study was designed to investigate global changes of gene expression and detailed responses of innate immune systems in human and avian hosts during the course of infection with various subtypes of influenza A viruses, using collected and self-generated transcriptome sequencing data from human bronchial epithelial (HBE), human tracheobronchial epithelial (HTBE), and A549 cells infected with influenza A virus subtypes, namely H1N1, H3N2, H5N1 HALo mutant, and H7N9, and from ileum and lung of chicken and quail infected with H5N1, or H5N2. RESULTS: We examined the induction of various cytokines and chemokines in human hosts infected with different subtypes of influenza A viruses. Type I and III interferons were found to be differentially induced with each subtype. H3N2 caused abrupt and the strongest response of IFN-beta and IFN-lambda, followed by H1N1 (though much weaker), whereas H5N1 HALo mutant and H7N9 induced very minor change in expression of type I and III interferons. Similarly, differential responses of other innate immunity-related genes were observed, including TMEM173, MX1, OASL, IFI6, IFITs, IFITMs, and various chemokine genes like CCL5, CX3CL1, and chemokine (C-X-C motif) ligands, SOCS (suppressors of cytokine signaling) genes. Third, the replication kinetics of H1N1, H3N2, H5N1 HALo mutant and H7N9 subtypes were analyzed, H5N1 HALo mutant was found to have the highest viral replication rate, followed by H3N2, and H1N1, while H7N9 had a rate similar to that of H1N1 or H3N2 though in different host cell type. CONCLUSION: Our study illustrated the differential responses of innate immunity to infections of different subtypes of influenza A viruses. We found the influenza viruses which induced stronger innate immune responses replicate slower than those induces weaker innate immune responses. Our study provides important insight into links between the differential innate immune responses from hosts and the pathogenicity/ virulence of different subtypes of influenza A viruses. PMID- 29322932 TI - Identification of prognostic signature in cancer based on DNA methylation interaction network. AB - BACKGROUND: The identification of prognostic biomarkers for cancer patients is essential for cancer research. These days, DNA methylation has been proved to be associated with cancer prognosis. However, there are few methods which identify the prognostic markers based on DNA methylation data systematically, especially considering the interaction among DNA methylation sites. METHODS: In this paper, we first evaluated the stabilities of microRNA, mRNA, and DNA methylation data in prognosis of cancer. After that, a rank-based method was applied to construct a DNA methylation interaction network. In this network, nodes with the largest degrees (10% of all the nodes) were selected as hubs. Cox regression was applied to select the hubs as prognostic signature. In this prognostic signature, DNA methylation levels of each DNA methylation site are correlated with the outcomes of cancer patients. After obtaining these prognostic genes, we performed the survival analysis in the training group and the test group to verify the reliability of these genes. RESULTS: We applied our method in three cancers (ovarian cancer, breast cancer and Glioblastoma Multiforme). In all the three cancers, there are more common ones of prognostic genes selected from different samples in DNA methylation data, compared with gene expression data and miRNA expression data, which indicates the DNA methylation data may be more stable in cancer prognosis. Power-law distribution fitting suggests that the DNA methylation interaction networks are scale-free. And the hubs selected from the three networks are all enriched by cancer related pathways. The gene signatures were obtained for the three cancers respectively, and survival analysis shows they can distinguish the outcomes of tumor patients in both the training data sets and test data sets, which outperformed the control signatures. CONCLUSIONS: A computational method was proposed to construct DNA methylation interaction network and this network could be used to select prognostic signatures in cancer. PMID- 29322933 TI - Integrating transcriptional activity in genome-scale models of metabolism. AB - BACKGROUND: Genome-scale metabolic models provide an opportunity for rational approaches to studies of the different reactions taking place inside the cell. The integration of these models with gene regulatory networks is a hot topic in systems biology. The methods developed to date focus mostly on resolving the metabolic elements and use fairly straightforward approaches to assess the impact of genome expression on the metabolic phenotype. RESULTS: We present here a method for integrating the reverse engineering of gene regulatory networks into these metabolic models. We applied our method to a high-dimensional gene expression data set to infer a background gene regulatory network. We then compared the resulting phenotype simulations with those obtained by other relevant methods. CONCLUSIONS: Our method outperformed the other approaches tested and was more robust to noise. We also illustrate the utility of this method for studies of a complex biological phenomenon, the diauxic shift in yeast. PMID- 29322934 TI - Computational analysis reveals the coupling between bistability and the sign of a feedback loop in a TGF-beta1 activation model. AB - BACKGROUND: Bistable behaviors are prevalent in cell signaling and can be modeled by ordinary differential equations (ODEs) with kinetic parameters. A bistable switch has recently been found to regulate the activation of transforming growth factor-beta1 (TGF-beta1) in the context of liver fibrosis, and an ordinary differential equation (ODE) model was published showing that the net activation of TGF-beta1 depends on the balance between two antagonistic sub-pathways. RESULTS: Through modeling the effects of perturbations that affect both sub pathways, we revealed that bistability is coupled with the signs of feedback loops in the model. We extended the model to include calcium and Kruppel-like factor 2 (KLF2), both regulators of Thrombospondin-1 (TSP1) and Plasmin (PLS). Increased levels of extracellular calcium, which alters the TSP1-PLS balance, would cause high levels of TGF-beta1, resembling a fibrotic state. KLF2, which suppresses production of TSP1 and plasminogen activator inhibitor-1 (PAI1), would eradicate bistability and preclude the fibrotic steady-state. Finally, the loop PLS - TGF-beta1 - PAI1 had previously been reported as negative feedback, but the model suggested a stronger indirect effect of PLS down-regulating PAI1 to produce positive (double-negative) feedback in a fibrotic state. Further simulations showed that activation of KLF2 was able to restore negative feedback in the PLS - TGF-beta1 - PAI1 loop. CONCLUSIONS: Using the TGF-beta1 activation model as a case study, we showed that external factors such as calcium or KLF2 can induce or eradicate bistability, accompanied by a switch in the sign of a feedback loop (PLS - TGF-beta1 - PAI1) in the model. The coupling between bistability and positive/negative feedback suggests an alternative way of characterizing a dynamical system and its biological implications. PMID- 29322935 TI - Classifying cancer genome aberrations by their mutually exclusive effects on transcription. AB - BACKGROUND: Malignant tumors are typically caused by a conglomeration of genomic aberrations-including point mutations, small insertions, small deletions, and large copy-number variations. In some cases, specific chemotherapies and targeted drug treatments are effective against tumors that harbor certain genomic aberrations. However, predictive aberrations (biomarkers) have not been identified for many tumor types and treatments. One way to address this problem is to examine the downstream, transcriptional effects of genomic aberrations and to identify characteristic patterns. Even though two tumors harbor different genomic aberrations, the transcriptional effects of those aberrations may be similar. These patterns could be used to inform treatment choices. METHODS: We used data from 9300 tumors across 25 cancer types from The Cancer Genome Atlas. We used supervised machine learning to evaluate our ability to distinguish between tumors that had mutually exclusive genomic aberrations in specific genes. An ability to accurately distinguish between tumors with aberrations in these genes suggested that the genes have a relatively different downstream effect on transcription, and vice versa. We compared these findings against prior knowledge about signaling networks and drug responses. RESULTS: Our analysis recapitulates known relationships in cancer pathways and identifies gene pairs known to predict responses to the same treatments. For example, in lung adenocarcinomas, gene expression profiles from tumors with somatic aberrations in EGFR or MET were negatively correlated with each other, in line with prior knowledge that MET amplification causes resistance to EGFR inhibition. In breast carcinomas, we observed high similarity between PTEN and PIK3CA, which play complementary roles in regulating cellular proliferation. In a pan-cancer analysis, we found that genomic aberrations in BRAF and VHL exhibit downstream effects that are clearly distinct from other genes. CONCLUSION: We show that transcriptional data offer promise as a way to group genomic aberrations according to their downstream effects, and these groupings recapitulate known relationships. Our approach shows potential to help pharmacologists and clinical trialists narrow the search space for candidate gene/drug associations, including for rare mutations, and for identifying potential drug-repurposing opportunities. PMID- 29322936 TI - Investigation on changes of modularity and robustness by edge-removal mutations in signaling networks. AB - BACKGROUND: Biological networks consisting of molecular components and interactions are represented by a graph model. There have been some studies based on that model to analyze a relationship between structural characteristics and dynamical behaviors in signaling network. However, little attention has been paid to changes of modularity and robustness in mutant networks. RESULTS: In this paper, we investigated the changes of modularity and robustness by edge-removal mutations in three signaling networks. We first observed that both the modularity and robustness increased on average in the mutant network by the edge-removal mutations. However, the modularity change was negatively correlated with the robustness change. This implies that it is unlikely that both the modularity and the robustness values simultaneously increase by the edge-removal mutations. Another interesting finding is that the modularity change was positively correlated with the degree, the number of feedback loops, and the edge betweenness of the removed edges whereas the robustness change was negatively correlated with them. We note that these results were consistently observed in randomly structure networks. Additionally, we identified two groups of genes which are incident to the highly-modularity-increasing and the highly-robustness decreasing edges with respect to the edge-removal mutations, respectively, and observed that they are likely to be central by forming a connected component of a considerably large size. The gene-ontology enrichment of each of these gene groups was significantly different from the rest of genes. Finally, we showed that the highly-robustness-decreasing edges can be promising edgetic drug targets, which validates the usefulness of our analysis. CONCLUSIONS: Taken together, the analysis of changes of robustness and modularity against edge removal mutations can be useful to unravel novel dynamical characteristics underlying in signaling networks. PMID- 29322937 TI - Predicting binary, discrete and continued lncRNA-disease associations via a unified framework based on graph regression. AB - BACKGROUND: In human genomes, long non-coding RNAs (lncRNAs) have attracted more and more attention because their dysfunctions are involved in many diseases. However, the associations between lncRNAs and diseases (LDA) still remain unknown in most cases. While identifying disease-related lncRNAs in vivo is costly, computational approaches are promising to not only accelerate the possible identification of associations but also provide clues on the underlying mechanism of various lncRNA-caused diseases. Former computational approaches usually only focus on predicting new associations between lncRNAs having known associations with diseases and other lncRNA-associated diseases. They also only work on binary lncRNA-disease associations (whether the pair has an association or not), which cannot reflect and reveal other biological facts, such as the number of proteins involved in LDA or how strong the association is (i.e., the intensity of LDA). RESULTS: To address abovementioned issues, we propose a graph regression-based unified framework (GRUF). In particular, our method can work on lncRNAs, which have no previously known disease association and diseases that have no known association with any lncRNAs. Also, instead of only a binary answer for the association, our method tries to uncover more biological relationship between a pair of lncRNA and disease, which may provide better clues for researchers. We compared GRUF with three state-of-the-art approaches and demonstrated the superiority of GRUF, which achieves 5%~16% improvement in terms of the area under the receiver operating characteristic curve (AUC). GRUF also provides a predicted confidence score for the predicted LDA, which reveals the significant correlation between the score and the number of RNA-Binding Proteins involved in LDAs. Lastly, three out of top-5 LDA candidates generated by GRUF in novel prediction are verified indirectly by medical literature and known biological facts. CONCLUSIONS: The proposed GRUF has two advantages over existing approaches. Firstly, it can be used to work on lncRNAs that have no known disease association and diseases that have no known association with any lncRNAs. Secondly, instead of providing a binary answer (with or without association), GRUF works for both discrete and continued LDA, which help revealing the pathological implications between lncRNAs and diseases. PMID- 29322939 TI - Public health psychopharmacology: a new research discipline comes of age? AB - Research evidence guiding the identification of pragmatic and effective actions aimed at improving the selection, availability, affordability and rational prescribing of medicines for mental disorders is sparse and inconsistent. In order to boost the development of new research, in this commentary we suggest to organise and classify all the activities in this area under a common theoretical framework and nomenclature, adopting the term 'public health psychopharmacology'. Public health psychopharmacology is proposed as a research discipline, based on contributions from the fields of regulatory science, health services research and implementation science. Implementing the term public health psychopharmacology may offer advantages, as the scientific community would be more focused on common goals and objectives, with, likely, an increasing body of research evidence of practical use. PMID- 29322938 TI - MDD-carb: a combinatorial model for the identification of protein carbonylation sites with substrate motifs. AB - BACKGROUND: Carbonylation, which takes place through oxidation of reactive oxygen species (ROS) on specific residues, is an irreversibly oxidative modification of proteins. It has been reported that the carbonylation is related to a number of metabolic or aging diseases including diabetes, chronic lung disease, Parkinson's disease, and Alzheimer's disease. Due to the lack of computational methods dedicated to exploring motif signatures of protein carbonylation sites, we were motivated to exploit an iterative statistical method to characterize and identify carbonylated sites with motif signatures. RESULTS: By manually curating experimental data from research articles, we obtained 332, 144, 135, and 140 verified substrate sites for K (lysine), R (arginine), T (threonine), and P (proline) residues, respectively, from 241 carbonylated proteins. In order to examine the informative attributes for classifying between carbonylated and non carbonylated sites, multifarious features including composition of twenty amino acids (AAC), composition of amino acid pairs (AAPC), position-specific scoring matrix (PSSM), and positional weighted matrix (PWM) were investigated in this study. Additionally, in an attempt to explore the motif signatures of carbonylation sites, an iterative statistical method was adopted to detect statistically significant dependencies of amino acid compositions between specific positions around substrate sites. Profile hidden Markov model (HMM) was then utilized to train a predictive model from each motif signature. Moreover, based on the method of support vector machine (SVM), we adopted it to construct an integrative model by combining the values of bit scores obtained from profile HMMs. The combinatorial model could provide an enhanced performance with evenly predictive sensitivity and specificity in the evaluation of cross-validation and independent testing. CONCLUSION: This study provides a new scheme for exploring potential motif signatures at substrate sites of protein carbonylation. The usefulness of the revealed motifs in the identification of carbonylated sites is demonstrated by their effective performance in cross-validation and independent testing. Finally, these substrate motifs were adopted to build an available online resource (MDD-Carb, http://csb.cse.yzu.edu.tw/MDDCarb/ ) and are also anticipated to facilitate the study of large-scale carbonylated proteomes. PMID- 29322940 TI - Mental health capacity building in low and middle income countries: the Emerald Programme. PMID- 29322941 TI - Persistent activity in a recurrent circuit underlies courtship memory in Drosophila. AB - Recurrent connections are thought to be a common feature of the neural circuits that encode memories, but how memories are laid down in such circuits is not fully understood. Here we present evidence that courtship memory in Drosophila relies on the recurrent circuit between mushroom body gamma (MBgamma), M6 output, and aSP13 dopaminergic neurons. We demonstrate persistent neuronal activity of aSP13 neurons and show that it transiently potentiates synaptic transmission from MBgamma>M6 neurons. M6 neurons in turn provide input to aSP13 neurons, prolonging potentiation of MBgamma>M6 synapses over time periods that match short-term memory. These data support a model in which persistent aSP13 activity within a recurrent circuit lays the foundation for a short-term memory. PMID- 29322942 TI - Purulent pericarditis, an unusual complication of pneumococcal pneumonia: a case report. AB - Purulent pericarditis has become rare since the advent of antibiotics. Among the involved germs, S. pneumoniae remains the most implicated pathogen to evoke in principle, especially that prescription of systematic antibiotics for any febrile condition can considerably mask the clinical picture. A 36-year-old pregnant woman was visiting the emergency department for dyspnea and flu-like syndrom that had been going on for a week. The chest X-ray showed a white lung on the left and the transthoracic ultrasound revealed a pericardial effusion, resulting in pericardial drainage and pleural puncture that allows the evacuation of a purulent fluid. S. pneumoniae was identified on the pericardial fluid. Antibiotic therapy and resuscitation measures have allowed a good evolution. Even if it has become exceptional, pneumococcal pericarditis must not be overlooked since the evolution is often favorable in triple conditions: early recognition, prompt institution of appropriate antibiotic therapy, and early surgical drainage. PMID- 29322943 TI - Ultra-sensitive and selective detection of mercury ion (Hg2+) using free-standing silicon nanowire sensors. AB - In this paper, ultra-sensitive and highly selective Hg2+ detection in aqueous solutions was studied by free-standing silicon nanowire (SiNW) sensors. The all around surface of SiNW arrays was functionalized with (3 Mercaptopropyl)trimethoxysilane serving as Hg2+ sensitive layer. Due to effective electrostatic control provided by the free-standing structure, a detection limit as low as 1 ppt was obtained. A linear relationship (R 2 = 0.9838) between log(CHg2+ ) and a device current change from 1 ppt to 5 ppm was observed. Furthermore, the developed SiNW sensor exhibited great selectivity for Hg2+ over other heavy metal ions, including Cd2+. Given the extraordinary ability for real time Hg2+ detection, the small size and low cost of the SiNW device, it is expected to be a potential candidate in field detection of environmentally toxic mercury. PMID- 29322944 TI - Evidence for nodal superconductivity in a layered compound Ta4Pd3Te16. AB - We report an investigation of the London penetration depth [Formula: see text] on single crystals of the layered superconductor Ta4Pd3Te16, where the crystal structure has quasi-one-dimensional characteristics. A linear temperature dependence of [Formula: see text] is observed for [Formula: see text], in contrast to the exponential behavior of fully gapped superconductors. This indicates the existence of line nodes in the superconducting energy gap. A detailed analysis shows that the normalized superfluid density [Formula: see text], which is converted from [Formula: see text], can be well described by a multigap scenario, with nodes in one of the superconducting gaps, providing clear evidence for nodal superconductivity in Ta4Pd3Te16. PMID- 29322946 TI - The cover page. PMID- 29322945 TI - Observation of layered antiferromagnetism in self-assembled parallel NiSi nanowire arrays on Si(110) by spin-polarized scanning tunneling spectromicroscopy. AB - The layered antiferromagnetism of parallel nanowire (NW) arrays self-assembled on Si(110) have been observed at room temperature by direct imaging of both the topographies and magnetic domains using spin-polarized scanning tunneling microscopy/spectroscopy (SP-STM/STS). The topographic STM images reveal that the self-assembled unidirectional and parallel NiSi NWs grow into the Si(110) substrate along the [Formula: see text] direction (i.e. the endotaxial growth) and exhibit multiple-layer growth. The spatially-resolved SP-STS maps show that these parallel NiSi NWs of different heights produce two opposite magnetic domains, depending on the heights of either even or odd layers in the layer stack of the NiSi NWs. This layer-wise antiferromagnetic structure can be attributed to an antiferromagnetic interlayer exchange coupling between the adjacent layers in the multiple-layer NiSi NW with a B2 (CsCl-type) crystal structure. Such an endotaxial heterostructure of parallel magnetic NiSi NW arrays with a layered antiferromagnetic ordering in Si(110) provides a new and important perspective for the development of novel Si-based spintronic nanodevices. PMID- 29322947 TI - Neurosurgery as it was. PMID- 29322948 TI - Changing trends in surgery for suprasellar lesions. PMID- 29322949 TI - Evolution of concepts in the management of vestibular schwannomas: Lessons learnt from Prof B R Ramamurthi's article published in 1970. PMID- 29322950 TI - A medical-legal perspective on overlapping surgery. AB - In the U.S., there has recently been increased scrutiny on the appropriateness of surgeons performing overlapping cases and the potential for adverse consequences. This article describes the current literature on overlapping surgery and the ethics that guide behavior by performing a review of the PUBMED literature on overlapping surgery and analysis. Although the literature on overlapping surgery supports it as a safe practice, some public opinion runs contrary to the data, which is driving changes in policy. Surgeons should become familiar with the overlapping surgery policy in the hospital(s) in which they practice and be mindful of the potential consequences of performing overlapping surgeries. PMID- 29322951 TI - Cerebrospinal fluid shunts - How they work: The basics. PMID- 29322952 TI - Current status of dystonias including Meige's syndrome. PMID- 29322953 TI - Botulinum toxin in patients with Meige's syndrome. PMID- 29322954 TI - Management of intracranial arterial dissection. PMID- 29322955 TI - Endovascular management of vertebral artery dissecting aneurysms. PMID- 29322956 TI - Dissecting aneurysms of the vertebrobasilar system with non-traumatic subarachnoid haemorrhage: Therapeutic considerations. PMID- 29322957 TI - Is intraoperative lumbar subarachnoid drainage necessary for endoscopic endonasal pituitary surgery? PMID- 29322958 TI - The case for using lumbar drainage intraoperatively to help curb the number of iatrogenic CSF leaks. PMID- 29322959 TI - Neurological manifestations of renal disease. PMID- 29322960 TI - Neurology of renal disorders. PMID- 29322961 TI - Perioperative strokes following combined coronary artery bypass grafting and carotid endarterectomy: A nationwide perspective. AB - BACKGROUND: To assess the risk of perioperative stroke on in-hospital morbidity and mortality following combined coronary artery bypass grafting (CABG) and carotid endarterectomy (CEA). MATERIALS AND METHODS: Data from the National Inpatient Sample (NIS) database for all patients who underwent CABG with CEA were identified using ICD-9 codes. Combined procedures were identified as CEA and CABG procedures that happened on the same day. Various preoperative and perioperative risk factors and their association with in-hospital mortality and morbidity were studied. RESULTS: A total of 8457 patients underwent combined CABG and CEA from 1999 to 2011. The average age of the patient population was 69.98 years. A total of 6.17% (n = 521) of the patients developed perioperative strokes following combined CABG and CEA. An in-hospital mortality of 4.96% and morbidity of 66.35% was observed in the patient cohort. Patients with perioperative strokes showed a mortality of 19% and a morbidity of 89.34%. Other notable risk factors for in hospital mortality and morbidity were heart failure, paralysis, renal failure, coagulopathy, weight loss and fluid and electrolyte disturbances, and postoperative myocardial infarction. CONCLUSION: A strong association was found to exist between perioperative stroke and in-hospital mortality and morbidity after combined CABG and CEA. CEA procedures are thought to mitigate the high stroke rate of 3-5% post-CABG, but our study found that combined procedures exhibit a similar stroke risk undercutting their effectiveness. Further investigative studies on combined CABG+CEA are needed to assess risk stratification for better patient selection and examine other preventative strategies to minimize the risk of ischemic strokes. PMID- 29322962 TI - Etiologic spectrum and prognosis in noncompressive acute transverse myelopathies: An experience of 80 patients at a tertiary care facility. AB - INTRODUCTION: We evaluated the spectrum of acquired demyelinating and inflammatory disorders in patients presenting with an acute transverse myelopathy. We also studied differences between an acute idiopathic transverse myelitis and myelitis resulting from other etiologies. MATERIALS AND METHODS: Eighty consecutive patients with acute transverse myelopathy were included. At inclusion, clinical profile, serum and cerebrospinal fluid parameters, brain and spinal cord magnetic resonance imaging, and visual evoked potentials were obtained. All patients were given methylprednisolone therapy. Patients were followed up for 6 months. Outcome was assessed using modified Barthel index. A modified Barthel index score of <=12 indicated a poor prognosis. RESULTS: Majority (n = 49; 61.25%) of patients had idiopathic acute transverse myelitis. Eleven cases had neuromyelitis optica spectrum disorders (8 had anti-aquaporin antibody positivity). Multiple sclerosis was diagnosed in 7 cases. Eight cases had infectious or parainfectious myelitis. Longitudinally extensive transverse myelitis was noted in 66 (82.5%) patients. Seventeen patients had abnormalities in the brain. Majority of patients improved following methylprednisolone therapy. On univariate analysis, delay in administering methylprednisolone therapy, poor modified Barthel index at discharge, and extensive cord involvement were associated with severe residual disability. On multivariate analysis, delayed initiation of methylprednisolone was identified as a poor prognostic factor. CONCLUSION: A variety of inflammatory, infective, demyelinating, and autoimmune disorders present with acute transverse myelopathy. Early institution of methylprednisolone reduces the disability in these patients. PMID- 29322963 TI - Botulinum toxin in Meige's syndrome: A video-based case series. AB - CONTEXT: Despite being the most common cause of cranial dystonia, Meige's syndrome remains a rare clinical entity. Characterized by blepharospasm and orofacial dystonia, patients suffering from Meige's syndrome benefit from the injection of botulinum toxin (BTX). AIMS: As the majority of the studies tend to discuss Meige's syndrome with blepharospasm patients, there is a paucity of case based studies dealing exclusively with this syndrome. Hence, we intended to characterize and define the evolution of this syndrome and objectively determine the response of the patients suffering from this entity to BTX therapy. MATERIALS AND METHODS: Eight patients with Meige's syndrome who had never been injected with BTX in the past were evaluated at our movement disorder clinic using a structured questionnaire. Videotaping of abnormal movements was done for 5 minutes before the BTX injection and at a 1-month follow-up. All patients received electromyography-guided injection of BTX and the dosage was decided using clinical evaluation. Their demography, clinical features, and treatment response to BTX were analyzed using the "Burke-Fahn-Marsden dystonia rating scale" (BFMDRS) before injection and at a 1-month follow-up. RESULTS: The peak age of symptom onset was 46.4 years with a male: female ratio of 1:1. The average duration of symptoms was 6.43 years. Majority of the patients (6/8) manifested their disease with blepharospasm, including five patients who had clonic blepharospasm. Lingual dystonia (6/8) and pharyngeal involvement (4/8) were commonly noted. Sensory tricks were present in all, with placement of the fingers over eyelids being the commonest trick (7/8). The average BTX dose administered was 51.58 units, and the peak onset of relief was noted at 8.62 days after the injection. The duration of the effect lasted for 82.5 days on an average. Only one patient reported mild weakness of the muscles of mastication following BTX injection. The average BFMDRS improved from the preprocedural score of 25.06 to 13.12 following the BTX injection. CONCLUSIONS: In this series exclusively dealing with Meige's syndrome patients, tongue involvement was found to be very common (6/8, 75%), and the response to the first dose of BTX treatment was found to be excellent without the occurrence of any major side effects. PMID- 29322964 TI - Natural history of a cohort of Duchenne muscular dystrophy children seen between 1998 and 2014: An observational study from South India. AB - BACKGROUND: Duchenne muscular dystrophy (DMD) is the most common muscular dystrophy. There are no large studies describing its natural course from India. MATERIALS AND METHODS: Immunohistochemically/genetically confirmed DMD patients diagnosed between 1998 and 2014 were ambispectively included. The main aim was to study the natural course of motor milestones, i.e., age at onset of wheelchair status, bedbound state, and age at death, which were considered as primary outcome measures. We also correlated the DMD genotype with the motor milestones and other phenotypic features. RESULTS: A total of 500 DMD patients were included and 275 participated in the study. The mean age at symptom onset was 3.7 +/- 1.9 years, mean age at presentation was 8.1 +/- 2.5 years, and mean duration of illness was 4.4 +/- 2.6 years. On following them over 15 years, 155 (56.4%) had attained at least one of the primary outcome measures. Wheelchair status was attained in 124 (45.1%) [mean age: 10.4 +/- 1.6 years] and bedbound state in 24 (8.7%; mean age: 11.8 +/- 2.2 years) patients. Seven patients (2.6%) died during the follow-up period (mean age: 15.2 +/- 2.4 years). There was no significant impact of the genotypic or phenotypic features on the primary outcome. CONCLUSION: The pattern of major motor milestones (primary outcome measures) in this large cohort is comparable with that of the Western population despite variability in medical care. The genotypic pattern was also similar to other large studies, which suggests that DMD is a more homogeneous disorder with limited ethnic variability in its geno-phenotypic expression. PMID- 29322965 TI - Endovascular strategies for management of intradural vertebral artery dissecting aneurysms. AB - OBJECTIVE: Endovascular treatment of vertebral intradural dissecting aneurysms is complex and requires different strategies for each case. The current study aims to classify these aneurysms for an easy selection of optimal strategies for endovascular therapy. MATERIALS AND METHODS: This study is a retrospective evaluation of 10 patients harbouring a vertebral intradural dissecting aneurysm (including 6 female and 4 male patients). The clinical, procedural, and angiographic data were evaluated. RESULTS: Nine patients presented with acute subarachnoid hemorrhage and 1 with acute-onset headache. The aneurysms were classified into two types, depending on the developmental state of the contralateral vertebral artery: Dominant (A) and hypoplastic (B). Type A (n = 7) group was further divided into three subtypes on the basis of location of the aneurysm in relation to the posterior inferior cerebellar artery (PICA): aneurysm proximal to the PICA, Type I (n = 3); involving the PICA, Type II (n = 2); and, distal to the PICA, Type III (n = 2). Internal trapping was done for 4 patients in this group, 2 patients with aneurysm involving the PICA underwent proximal occlusion and 1 patient underwent stent-assisted coiling since he refused to undergo vertebral artery sacrifice. B Type patients (n = 3) were treated with reconstructive endovascular management. No symptomatic complication was seen in the patients with trapping. Antiplatelet medication-related complication was seen in 2 patients who underwent stent-assisted coiling. Clinical outcome at the time of discharge was good [modified Rankin score (mRS) 0-2] in 8 and poor (mRs >2) in 2 patients. At follow-up visit, one patient had developed severe cognitive impairment but was independent in activities of daily living. CONCLUSION: The classification of vertebral artery aneurysms based on their location and on the status of the contralateral vertebral artery appears to be an effective method for the selection of safe and appropriate endovascular therapy. PMID- 29322966 TI - The influence of adjunctive caudal epidural steroid injection on the therapeutic effect of transforaminal epidural steroid injection. AB - BACKGROUND: Epidural steroid injection is widely used to treat the short and long term symptoms of low back and radicular pain. To the best of our knowledge, the influence of transforaminal epidural steroid injection (TFSI) combined with caudal epidural steroid injection (CESI) on pain intensity, patient satisfaction, and quality of life in lumbar radiculopathy has not been examined. AIM: To evaluate the short and long-term efficacy of TFSI, and TFSI combined with CESI (TFSI + CESI) in patients with lumbar radiculopathy. MATERIALS AND METHODS: We retrospectively examined the records of 104 patients with lumbar radicular pain and L4/5 and/or L5/S1 intervertebral disc disease who underwent TFSI or TFSI + CESI. We compared the pain intensity using a Visual Numeric Scale (VNS), North American Spine Society (NASS) pain satisfaction index, and EuroQol five dimensions (EQ-5D) quality of life scores before intervention, and after 1, 6 and 12 months. RESULTS: In the TFSI group, the mean pre-treatment VNS score was 9.2, which improved to 4.9 after 1 month and to 7.2 after 12 months. In the TFSI + CESI group, the mean pre-treatment VNS score was 9.4, which improved to 2.6 and 4.6 after 1 and 12 months, respectively. Improvement in the VNS scores was significantly higher in the TFSI + CESI group (P < 0.0001 for each). Mean EQ-5D quality of life index in the TFSI group improved from 0.59 in the pre-treatment phase to 0.76 after 12 months of intervention, while it improved from 0.62 in the pre-treatment phase to 0.84 at 12 months of intervention in the TFSI + CESI group. The EQ-5D scores were significantly better in the TFSI + CESI group at 1, 6, and 12 months after the procedure (P = 0.004, 0.036, and 0.042, for 1, 6, and 12 months, respectively). The NASS scores were significantly better in the TFSI + CESI group at 6 and 12 months after the intervention (P = 0.025 and 0.001 for 6 months and 12 months, respectively). CONCLUSION: In patients with lower lumbar radiculopathy, a combined TFSI + CESI technique offers superior short and long term pain relief, quality of life, and long-term patient satisfaction, than when TFSI is performed alone. PMID- 29322967 TI - Alternative bibliometrics from the web of knowledge surpasses the impact factor in a 2-year ahead annual citation calculation: Linear mixed-design models' analysis of neuroscience journals. AB - CONTEXT: The decision about which journal to choose for the publication of research deserves further investigation. AIMS: In this study, we evaluate the predictive ability of seven bibliometrics in the Web of Knowledge to calculate total cites over a 7-year period in neuroscience journals. SETTINGS AND DESIGN: Coincidental bibliometrics appearing during 2007, 2008, 2009, 2010, and 2011, along with their corresponding cites in 2009, 2010, 2011, 2012, and 2013, were recorded from the journal citation reports (JCR) Science Edition. This was a retrospective study. MATERIALS AND METHODS: This was a bibliographic research using data from the Web of Knowledge in the neuroscience category. STATISTICAL ANALYSIS USED: A linear-mixed effects design using random slopes and intercepts was performed on 275 journals in the neuroscience category. RESULTS: We found that Eigenfactor score, cited half-life, immediacy index, and number of articles are significant predictors of 2-year-ahead total cites (P <= 0.010 for all variables). The impact factor, 5-year impact factor, and article influence score were not significant predictors; the global effect size was significant (R2= 0.999; P < 0.001) with a total variance of 99.9%. CONCLUSIONS: An integrative model using a set of several metrics could represent a new standard to assess the influence and importance of scientific journals, and may simultaneously help researchers to rank journals in their decision-making during the manuscript submission phase. PMID- 29322968 TI - Treatment strategies for traumatic cervico-cranial pseudoaneurysms: A single institution experience. AB - AIM: Limited clinical and angiographic data exists for patients with traumatic cervico-cerebral pseudoaneurysms. In this paper, we present our limited experience with various management strategies for traumatic cervico-cranial pseudoaneurysms. MATERIALS AND METHODS: We retrospectively analyzed 37 consecutive cases of traumatic pseudoaneurysms involving the cervico-cranial or the cerebral arteries diagnosed at our center from September 2009 to December 2014. The demographic data, etiology, clinical presentation, lesion location, treatment modality, and follow-up outcomes of these patients were reviewed. Among these 37 patients, 5 patients were treated by surgery, while 29 patients were treated by the endovascular approach and 3 received conservative treatment. RESULTS: During the study period, 42 pseudoaneurysms were identified in 37 patients with a history of head or neck injury. Five patients underwent surgical exploration of the lesion with an uneventful postoperative course. Twenty-nine patients were treated by endovascular interventions with various embolization materials including coils, stents, detachable balloons, liquid embolic agents, and a combination of these agents. The angiographic follow-up imaging demonstrated complete exclusion of the aneurysm from the circulation with the patient being free from any additional neurological deficits. CONCLUSION: Proper selection of an appropriate approach is essential to address the management of traumatic cervico-cerebral pseudoaneurysms. The treatment of traumatic cervico cerebral pseudoaneurysms should be selected according to the location and the clinical features of the pseudoaneurysms. The endovascular treatment is a safe and effective modality and should be the first-line choice for treatment of traumatic pseudoaneurysms. PMID- 29322969 TI - Pseudoaneurysms of the craniocervical region. PMID- 29322970 TI - Minimally invasive transforaminal lumbar interbody fusion using bone cement augmented pedicle screws for lumbar spondylolisthesis in patients with osteoporosis. Case series and review of literature. AB - BACKGROUND: Instrumentation in patients with osteoporosis is challenging. Bone cement-augmented fenestrated pedicle screw fixation is a new procedure for fixation in the osteoporotic bone; and, applying minimally invasive techniques to the above is a challenging and novel concept. AIMS: To evaluate the clinical and radiological outcome of minimally invasive spine surgery transforaminal lumbar interbody fusion (MIS-TLIF) in patients with spondylolisthesis and poor bone quality, performed with rigid instrumentation using bone cement [poly(methylmethacrylate)]-augmented fenestrated pedicle screws. SETTINGS AND DESIGN: Prospective, observational, single-center study. STATISTICAL ANALYSIS USED: Wilcoxon nonparametric test for paired samples with a level of significance of 0.05. METHODS: A clinical series of 25 patients with lumbar spondylolisthesis and osteoporosis who underwent minimally invasive TLIF with bone cement-augmented pedicle screws were included in the study. Clinical outcome and the function were assessed using the visual analog scale (VAS) score for pain and the Oswestry Disability Index (ODI). Perioperative, postoperative, and long-term complications were monitored with a mean follow-up of 18 months. RESULTS: A total of 25 (20 female and 5 male) patients were included in the study with an average age of 61.05 years. The major symptom was low back pain with radiating pain to lower limbs. The average T-score was -3.0. All the patients were followed clinically and radiologically. There was a statistically significant improvement in the VAS scores and ODI scores postoperatively. No events of cement extravasation, radiological loosening, or pulling out of screws were observed. CONCLUSIONS: Fenestrated pedicle screw fixation with bone cement augmentation in patients with osteoporosis is a well-established alternative to increase the pullout strength of screws placed in the osteoporotic bone. Applying the concept of minimally invasive surgery to this procedure makes it a more complete solution for instrumentation in osteoporotic spine. Our series is the largest in literature on spondylolisthesis and confirms the feasibility and safety of this procedure in treating spondylolisthesis in the aging population. PMID- 29322971 TI - Osteoporotic lumbar spine - Principles of pedicle screw fixation and interbody fusion. PMID- 29322972 TI - A randomized controlled trial to determine the role of intraoperative lumbar cerebrospinal fluid drainage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas. AB - BACKGROUND: Intraoperative cerebrospinal fluid (CSF) leaks are a frequent cause of morbidity in patients undergoing transsphenoidal surgery. This prospective study was performed to examine the impact of intraoperative lumbar subarachnoid drainage (LSAD) on the incidence of this complication and on the extent of resection in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas. MATERIALS AND METHODS: This prospective study was conducted in a single large academic medical center. All patients with pituitary adenomas who had not undergone prior transsphenoidal surgery were eligible for inclusion in the study. Patients were randomly assigned to undergo transsphenoidal surgery with intraoperative lumbar drain insertion (LSAD group) or no lumbar drain insertion (no LSAD group). An otolaryngologist independently determined the occurrence of an intraoperative CSF leak. Extent of tumor resection was determined by volumetric analysis of postoperative magnetic resonance images in patients with nonfunctional tumors or functional adenomas with a large suprasellar component. RESULTS: Sixty patients were eligible for inclusion, of which 30 were assigned to the LSAD group and 30 to the no LSAD group. There were no statistically significant differences in patient demographics, tumor pathology, or radiology between the two groups. The LSAD catheter was successfully inserted in all patients in the LSAD group. Intraoperative CSF drainage significantly reduced the incidence of CSF leak from 46.7% in the no LSAD group to 3.3% in the LSAD group (P < 0.001). However, there were no statistically significant differences in the incidence of postoperative CSF rhinorrhea between the two groups. There were no major catheter-related complications. There was no statistically significant difference in the extent of resection between the two groups. CONCLUSIONS: Controlled intraoperative CSF drainage significantly reduces the incidence of intraoperative CSF leakage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas. PMID- 29322974 TI - Facial schwannomas: Diagnosis and surgical perspectives. PMID- 29322973 TI - Facial nerve schwannomas: A case series with an analysis of imaging findings. AB - Facial nerve schwannomas (FNSs) are rare benign tumors arising from the Schwann cells of the sheath of the facial nerve. These tumors may arise anywhere along the course of the facial nerve. Owing to their rarity and nonspecific clinical and radiological presentations, the preoperative diagnosis of FNSs is exceedingly difficult. In this study, we present four cases of histopathologically proven extratemporal schwannomas and a solitary case of intratemporal schwannoma. The purpose of this study was mainly focused on analyzing the imaging findings of extratemporal and intratemporal schwannomas in an effort to better characterize these lesions preoperatively. An early diagnosis of FNSs is helpful for the management and rehabilitation of these cases. PMID- 29322975 TI - Atlantoaxial instability associated with pan cervical vertebral fusion: Report on management of 4 cases. AB - We report a series of four patients aged 4, 5, 14, and 27 years (1 male and 3 female patients) with severe shortening of the neck and torticollis since early childhood who presented with complaint of pain in the nape of neck as the primary symptom. All four patients had relatively well preserved neurological functions. One patient had vertical mobile and reducible atlantoaxial dislocation, and 3 patients had anteroposterior mobile and reducible dislocation. There was assimilation of atlas in 1 patient. The arch of atlas was bifid in 3 patients. Two patients underwent atlantoaxial fixation. Both the patients were relieved of neck pain after their surgery. The potential surgical difficulties due to the presence of severe shortening of neck height and marginal presenting symptoms favored conservative observation in the other 2 patients. Follow-up ranged from 6 to 84 months. All patients are functionally and socially active. PMID- 29322976 TI - "Fusing the appropriate" in complex craniovertebral junction anomalies. PMID- 29322977 TI - The chicken or the egg - Pancervical fusion with atlantoaxial dislocation. PMID- 29322978 TI - Chromosomal aberrations in chordoid meningioma - An analysis. AB - INTRODUCTION: Chordoid meningiomas (CMs) are a rare subgroup of tumors, accounting for approximately 0.5% of all meningiomas. These tumors correspond to World Health Organization (WHO) Grade II lesions and behave aggressively, with an increased likelihood of recurrence. There are only two studies that have described the genetic alterations in CMs. While a majority of meningiomas are known to have deletion at many chromosomal loci such as 22q, 18p, 14q, and 1p, which are found to be associated with initiation, progression, and malignancy of these tumors, these have not yet been studied in CMs. Thus, our aim was to evaluate the status of these four chromosomal aberrations in CMs and correlate the findings with the clinical outcome of patients. MATERIALS AND METHODS: A total of 15 cases of CM operated over a period of 12 years from 2001 to 2013 were analyzed. The archival paraffin blocks were retrieved and sections were subjected to locus-specific fluorescent in situ hybridization (FISH) using 22q12.2, 18p11.3, 14q32.2, and 1p32.3 probes. Immunohistochemistry (IHC) was done on all cases using MIB-1, vimentin, glial fibrillary acidic protein (GFAP), and epithelial membrane antigen (EMA) antibodies. RESULTS: All cases had characteristic features of CM, and were positive for EMA and vimentin and negative for GFAP. The mean labeling index for MIB-1 was 2.7 +/- 0.8%. Of the 15 cases, 5 cases showed recurrence with a median follow-up period of 28 months. Patients who underwent Simpson's grade I excision did not show any relapse of the tumor. Of the 5 recurrent cases, 4 had complete deletion of all four chromosomal loci. Among the 10 nonrecurrent cases, 9 (90%) showed either partial deletion or an intact status. CONCLUSIONS: This is the first study to evaluate the combined chromosomal status of 22q, 18p, 14q, and 1p in CMs. Our study shows that there was a higher propensity of recurrence in tumors, even with complete excision, with complete deletion in all four chromosomal loci. PMID- 29322979 TI - Meningiomas: A continuum of progress in risk-stratification. PMID- 29322980 TI - Neurology of renal disorders. AB - Chronic kidney disease (CKD) is a critical and rapidly growing global health problem. Neurological complications occur in almost all patients with severe CKD, potentially affecting all levels of the nervous system, from the central nervous system (CNS) through to the peripheral nervous system (PNS). Patients with CKD exhibit a high incidence of symptomatic and occult cerebrovascular diseases, associated tremendously high levels of inflammatory factors and homocysteine, as well as anemia, hypertension, and diabetes. As these risk factors overshadow aging and nonvascular factors, CKD patients represent a potential model of accelerated vascular cognitive impairment. In this article, the disease-related and treatment-related neurological complications of renal disorders will be reviewed. PMID- 29322981 TI - Expansile manubriotomy for ventral cervicothoracic junction disease. AB - Cervicothoracic junction can be approached anteriorly, anterolaterally, posterolaterally, and posteriorly. The anterior approaches in this region best address the ventral vertebral body disease but may cause significant morbidity. Twelve patients with their disease process located ventral to the spinal cord in the cervicothoracic junction underwent expansile manubriotomy and corpectomy. Eleven patients underwent fusion. One patient underwent an oblique corpectomy. All patients had their disease process from T1 to T3 vertebral levels. After dissection, the manubrium was cut open in the midline until the sternal notch. Further manubrial cut was extended laterally to just below the second rib. A self retaining retractor was placed and opened. This gave an additional exposure of 10 cm from the midline towards the right side. It also opened the thoracic inlet. The superior mediastinum was dissected. Brachiocephalic vessels were looped down and a plane was made between the carotid artery laterally, and the trachea and esophagus medially. The prevertebral fascia was reached and opened to access the vertebral body. The procedure could be carried out successfully in all the patients. A patient with uncontrolled diabetes mellitus and end-stage renal disease with pyogenic epidural abscess succumbed to her illness after 3 weeks. Expansile manubriotomy is technically feasible, less invasive, and least morbid of all the anterior approaches for accessing the anteriorly located disease process above the T4 vertebral level. PMID- 29322982 TI - Expansile manubriotomy versus standard approach for accessing ventral cervicothoracic junction disease: Methods to improve the decision-making process. PMID- 29322985 TI - PGIMER, Chandigarh: A temple of holistic Neurology. AB - History helps us to become better students, judge wisely, understand change, and most importantly, it tells us who we are. It helps us to understand what happened, why it happened and what its ramifications are. Winston Churchill once said: "Study history, study history. In history lie all the secrets of statecraft." Here, we take this opportunity to pay our gratitude to our esteemed teachers who worked relentlessly for uplifting of the department of Neurology, PGIMER, Chandigarh; and, narrate chronicles of all those people who made this department reach the heights where it stands today. PMID- 29322984 TI - A device for three-dimensional quantitative assessment and alignment of C1-2 vertebrae during posterior distraction and fusion technique for atlantoaxial dislocation and/or basilar invagination. AB - The most common type of congenital C1-2 dislocation is a combined type in which atlanto-axial dislocation (AAD) and basilar invagination (BI) are often associated with a rotational dislocation and coronal tilt. An optimal surgical treatment involves reduction of AAD and BI with simultaneous correction of the rotation and coronal tilt to achieve an optimal cervical canal decompression, sagittal and coronal realignment and bony fusion. The most acceptable technique to facilitate this correction is the C1-C2 distraction technique, which is accomplished by the manual joint manipulation. In this study, the authors describe an instrument that accomplishes distraction of the C12 joint space along with its quantitative assessment, permits the easy installation of a joint spacer without damage to the articular surfaces, brings about reduction of AAD and BI, while simultaneously also helping in the correction of the coexisting coronal tilt and rotational dislocation. This distractor not only achieves a multi-planar three-dimensional correction of the displacements at the C1-2 vertebral level, but may be used for the quantitative assessment of the correction and is compatible with the related surgical instruments of all standard companies utilized in this operative procedure. PMID- 29322986 TI - A summary of some of the recently published, seminal papers in neurosciences. PMID- 29322983 TI - Auditory P300 event-related potential: Normative data in the Indian population. AB - OBJECTIVE: To generate the normative data of auditory P300 event-related potential for various age groups in the Indian population. MATERIALS AND METHODS: Auditory P300 event-related potentials, using the oddball paradigm, of healthy control participants in studies carried out at our institute were included to generate normative data in the age range of 10-50 years. The amplitude and latency of P300 for Fz, Cz, and Pz were selected for analysis. RESULTS: For P300 amplitude, overall multivariate analysis of variance (MANOVA) was significant [Pillai's Trace F (9/453) = 3.46, P < 0.001]. Follow-up ANOVA showed significant difference across age groups at Fz, Cz, and Pz. For P300 latency, there was a trend towards significance for overall MANOVA [Pillai's Trace F (9/453) = 1.68, P = 0.09]. Follow-up ANOVA showed a trend towards significant difference across age groups at Fz only. CONCLUSION: Our study generated a P300 amplitude and frequency normative database at Fz, Cz, and Pz, which will serve as a reference for future studies attempting to define P300 abnormalities in various psychiatric disorders in Indian population. PMID- 29322987 TI - Complications related to sitting position during Pediatric Neurosurgery: An institutional experience and review of literature. AB - BACKGROUND: Sitting position is preferred during posterior fossa surgeries as it provides better anatomical orientation and a clear surgical field. However, its use has been declining due to its propensity to cause life-threatening complications. This study was carried out to analyze the perioperative complications and postoperative course of children who underwent neurosurgery in sitting position. MATERIALS AND METHODS: Medical records of 97 children (<18 years) who underwent neurosurgery in sitting position over a period of 12 years, were retrospectively analyzed. Data pertaining to the perioperative course such as demographics, hemodynamic changes, various complications, duration of intensive care unit (ICU) and hospital stay, and neurological status at discharge were recorded. Statistical analysis was done by chi-square and Mann-Whitney test, and a P value <0.05 was considered as significant. RESULTS: The median age of these children was 12 (3-18) years. Hemodynamic instability was observed in 12 (12.3%) children. A total of 38 episodes of venous air embolism (VAE) were encountered in 21 (21.6%) children; nine experienced multiple episodes. VAE was associated with hypotension in five (23.8%) and desaturation in four (19.1%) children. Six children presented with postoperative tension pneumocephalus; three were managed with twist drill burr-hole evacuation. Brainstem handling was the most common indication (42.5%) for the requirement of elective postoperative ventilation. The duration of ICU and hospital stays were comparable among the children who experienced VAE and those who did not (P > 0.05). Neurological status at discharge was also comparable between these two groups (P = 0.83). CONCLUSIONS: This study observed a lesser incidence of VAE and associated complications. Tension pneumocephalus was managed successfully without any adverse outcome. Hence, it is believed that with meticulous anesthetic and surgical techniques, sitting position can safely be practiced in children undergoing neurosurgery. PMID- 29322988 TI - The sitting position for Neurosurgery: A bane or a boon. PMID- 29322989 TI - Association of hemolysis, elevated liver enzymes, low platelets syndrome with posterior reversible encephalopathy and intracranial hypotension. PMID- 29322990 TI - Carotid stump syndrome treated with endovascular coiling: A rare cause of stroke in young patients. PMID- 29322991 TI - Sporadic spinocerebellar ataxia, type 5: First report from India. PMID- 29322992 TI - CARASIL, a rare genetic cause of stroke in the young. PMID- 29322993 TI - Sertraline-induced reversible myopathy with rhabdomyolysis and trismus. PMID- 29322994 TI - Ictal bradycardia: A missed etiology for intraoperative bradycardia. PMID- 29322995 TI - Familial amyloid polyneuropathy due to p.ALA140 SER mutation. PMID- 29322996 TI - Disseminated cysticercosis presenting as status epilepticus, rhabdomyolysis, and acute kidney injury: An unreported complication. PMID- 29322997 TI - Lumber nerve root cavernous angioma. PMID- 29322998 TI - Primary sphenoid wing meningioma in contiguity with a glioblastoma. PMID- 29322999 TI - Sacral Ewing's tumor: Use of neoadjuvant chemotherapy for preoperative cytoreduction of the tumor. PMID- 29323000 TI - Primary diffuse leptomeningeal gliomatosis: A coveted diagnosis we think of less. PMID- 29323001 TI - Dirofilariasis mimicking an osteoma. PMID- 29323002 TI - Trans-third ventricular approach to basilar top aneurysm. PMID- 29323003 TI - Primary lymphoma of the radial nerve presenting as nerve sheath tumor. PMID- 29323004 TI - Middle meningeal arteriovenous fistula causing unilateral proptosis. PMID- 29323005 TI - Nasu-Hakola Disease. PMID- 29323006 TI - Spastic paraparesis with basal ganglia changes: Infantile neuroaxonal dystrophy. PMID- 29323007 TI - Triad of gloom in a girl child: Aicardi syndrome. PMID- 29323008 TI - Multiple extraneural metastases from a benign intracranial meningioma. PMID- 29323009 TI - Reversible symptoms present in a patient with Balo's concentric sclerosis. PMID- 29323010 TI - Revisiting a historical phenomenon: Myodil droplets in the subarachnoid space. PMID- 29323011 TI - Multiple cranial nerve enhancement as a rare presentation of secondary brain lymphoma. PMID- 29323012 TI - Senior citizenship in neurosurgery. PMID- 29323014 TI - India and its potential for neuroinformatics. PMID- 29323015 TI - Anesthetic considerations for intraoperative neurophysiological monitoring in patients undergoing scoliosis surgery. PMID- 29323016 TI - Magnesium: Hope for prehospital care in intracranial hemorrhage. PMID- 29323013 TI - The Indo-US Collaborative Stroke Registry and infrastructure development project. PMID- 29323017 TI - Authors' Reply: Magnesium supplementation in intracerebral hematoma: The hope and the hype! PMID- 29323018 TI - Arterial spin labeling. PMID- 29323019 TI - Authors' Reply: Arterial spin labeling: Clarifying the apparent contradiction. PMID- 29323020 TI - Author's Reply: Arterial spin labeling. PMID- 29323021 TI - Subgaleoatrial or subgaleopleural shunt? PMID- 29323022 TI - Authors' Reply: In defence of subgaleoatrial shunt! PMID- 29323023 TI - Visual outcome following microscopic transsphenoidal surgery for pituitary adenomas: A few concerns. PMID- 29323024 TI - Authors' Reply: How long can the optic nerve defy compression? PMID- 29323025 TI - Non-invasive brain stimulation to promote motor and functional recovery following spinal cord injury. AB - We conducted a systematic review of studies using non-invasive brain stimulation (NIBS: repetitive transcranial magnetic stimulation (rTMS) and transcranial direct current stimulation (tDCS)) as a research and clinical tool aimed at improving motor and functional recovery or spasticity in patients following spinal cord injury (SCI) under the assumption that if the residual corticospinal circuits could be stimulated appropriately, the changes might be accompanied by functional recovery or an improvement in spasticity. This review summarizes the literature on the changes induced by NIBS in the motor and functional recovery and spasticity control of the upper and lower extremities following SCI. PMID- 29323026 TI - The contribution of oligodendrocytes and oligodendrocyte progenitor cells to central nervous system repair in multiple sclerosis: perspectives for remyelination therapeutic strategies. AB - Oligodencrocytes (OLs) are the main glial cells of the central nervous system involved in myelination of axons. In multiple sclerosis (MS), there is an imbalance between demyelination and remyelination processes, the last one performed by oligodendrocyte progenitor cells (OPCs) and OLs, resulting into a permanent demyelination, axonal damage and neuronal loss. In MS lesions, astrocytes and microglias play an important part in permeabilization of blood brain barrier and initiation of OPCs proliferation. Migration and differentiation of OPCs are influenced by various factors and the process is finalized by insufficient acummulation of OLs into the MS lesion. In relation to all these processes, the author will discuss the potential targets for remyelination strategies. PMID- 29323028 TI - Surgical reconstruction of spinal cord circuit provides functional return in humans. AB - This mini review describes the current surgical strategy for restoring function after traumatic spinal nerve root avulsion in brachial or lumbosacral plexus injury in man. As this lesion is a spinal cord or central nervous injury functional return depends on spinal cord nerve cell growth within the central nervous system. Basic science, clinical research and human application has demonstrated good and useful motor function after ventral root avulsion followed by spinal cord reimplantation. Recently, sensory return could be demonstrated following spinal cord surgery bypassing the injured primary sensory neuron. Experimental data showed that most of the recovery depended on new growth reinnervating peripheral receptors. Restored sensory function and the return of spinal reflex was demonstrated by electrophysiology and functional magnetic resonance imaging of human cortex. This spinal cord surgery is a unique treatment of central nervous system injury resulting in useful functional return. Further improvements will not depend on surgical improvements. Adjuvant therapy aiming at ameliorating the activity in retinoic acid elements in dorsal root ganglion neurons could be a new therapeutic avenue in restoring spinal cord circuits after nerve root avulsion injury. PMID- 29323027 TI - MicroRNAs in Parkinson's disease and emerging therapeutic targets. AB - Parkinson's disease (PD) is the second most common age-related neurodegenerative disorder, with the clinical main symptoms caused by a loss of dopaminergic neurons in the substantia nigra, corpus striatum and brain cortex. Over 90% of patients with PD have sporadic PD and occur in people with no known family history of the disorder. Currently there is no cure for PD. Treatment with medications to increase dopamine relieves the symptoms but does not slow down or reverse the damage to neurons in the brain. Increasing evidence points to inflammation as a chief mediator of PD with inflammatory response mechanisms, involving microglia and leukocytes, activated following loss of dopaminergic neurons. Oxidative stress is also recognized as one of the main causes of PD, and excessive reactive oxygen species (ROS) and reactive nitrogen species can lead to dopaminergic neuron vulnerability and eventual death. MicroRNAs control a range of physiological and pathological functions, and may serve as potential targets for intervention against PD to mitigate damage to the brain. Several studies have demonstrated that microRNAs can regulate oxidative stress and prevent ROS mediated damage to dopaminergic neurons, suggesting that specific microRNAs may be putative targets for novel therapeutic strategies in PD. Recent human and animal studies have identified a large number of dysregulated microRNAs in PD brain tissue samples, many of which were downregulated. The dysregulated microRNAs affect downstream targets such as SNCA, PARK2, LRRK2, TNFSF13B, LTA, SLC5A3, PSMB2, GSR, GBA, LAMP-2A, HSC. Apart from one study, none of the studies reviewed had used agomirs or antagomirs to reverse the levels of downregulated or upregulated microRNAs, respectively, in mouse models of PD or with isolated human or mouse dopaminergic cells. Further large-scale studies of brain tissue samples collected with short postmortem interval from human PD patients are warranted to provide more information on the microRNA profiles in different brain regions and to test for gender differences. PMID- 29323030 TI - Formin' bridges between microtubules and actin filaments in axonal growth cones. PMID- 29323031 TI - Advanced diffusion-weighted magnetic resonance imaging in the evaluation of white matter axons in patients with idiopathic normal pressure hydrocephalus. PMID- 29323029 TI - Environmental cues determine the fate of astrocytes after spinal cord injury. AB - Reactive astrogliosis occurs after central nervous system (CNS) injuries whereby resident astrocytes form rapid responses along a graded continuum. Following CNS lesions, naive astrocytes are converted into reactive astrocytes and eventually into scar-forming astrocytes that block axon regeneration and neural repair. It has been known for decades that scarring development and its related extracellular matrix molecules interfere with regeneration of injured axons after CNS injury, but the cellular and molecular mechanisms for controlling astrocytic scar formation and maintenance are not well known. Recent use of various genetic tools has made tremendous progress in better understanding genesis of reactive astrogliosis. Especially, the latest experiments demonstrate environment dependent plasticity of reactive astrogliosis because reactive astrocytes isolated from injured spinal cord form scarring astrocytes when transplanted into injured spinal cord, but revert in retrograde to naive astrocytes when transplanted into naive spinal cord. The interactions between upregulated type I collagen and its receptor integrin beta1 and the N-cadherin-mediated cell adhesion appear to play major roles for local astrogliosis around the lesion. This review centers on the environment-dependent plasticity of reactive astrogliosis after spinal cord injury and its potential as a therapeutic target. PMID- 29323032 TI - Conductive polymer scaffolds to improve neural recovery. PMID- 29323033 TI - Coenzyme Q10 as a therapeutic candidate for treating inherited photoreceptor degeneration. PMID- 29323034 TI - Implications of periostin in the development of subarachnoid hemorrhage-induced brain injuries. PMID- 29323035 TI - Intentional and unintentional impacts of anaesthesia: insights from experiments in pain and injury. PMID- 29323036 TI - The Drosophila adult neuromuscular junction as a model for unravelling amyloid peptide influence on synapse dynamics. PMID- 29323037 TI - Bone marrow-derived mesenchymal stem cells ameliorate sodium nitrite-induced hypoxic brain injury in a rat model. AB - Sodium nitrite (NaNO2) is an inorganic salt used broadly in chemical industry. NaNO2 is highly reactive with hemoglobin causing hypoxia. Mesenchymal stem cells (MSCs) are capable of differentiating into a variety of tissue specific cells and MSC therapy is a potential method for improving brain functions. This work aims to investigate the possible therapeutic role of bone marrow-derived MSCs against NaNO2 induced hypoxic brain injury. Rats were divided into control group (treated for 3 or 6 weeks), hypoxic (HP) group (subcutaneous injection of 35 mg/kg NaNO2 for 3 weeks to induce hypoxic brain injury), HP recovery groups N-2wR and N-3wR (treated with the same dose of NaNO2 for 2 and 3 weeks respectively, followed by 4-week or 3-week self-recovery respectively), and MSCs treated groups N-2wSC and N-3wSC (treated with the same dose of NaNO2 for 2 and 3 weeks respectively, followed by one injection of 2 * 106 MSCs via the tail vein in combination with 4 week self-recovery or intravenous injection of NaNO2 for 1 week in combination with 3 week self-recovery). The levels of neurotransmitters (norepinephrine, dopamine, serotonin), energy substances (adenosine monophosphate, adenosine diphosphate, adenosine triphosphate), and oxidative stress markers (malondialdehyde, nitric oxide, 8-hydroxy-2'-deoxyguanosine, glutathione reduced form, and oxidized glutathione) in the frontal cortex and midbrain were measured using high performance liquid chromatography. At the same time, hematoxylin-eosin staining was performed to observe the pathological change of the injured brain tissue. Compared with HP group, pathological change of brain tissue was milder, the levels of malondialdehyde, nitric oxide, oxidized glutathione, 8-hydroxy-2' deoxyguanosine, norepinephrine, serotonin, glutathione reduced form, and adenosine triphosphate in the frontal cortex and midbrain were significantly decreased, and glutathione reduced form/oxidized glutathione and adenosine monophosphate/adenosine triphosphate ratio were significantly increased in the MSCs treated groups. These findings suggest that bone marrow-derived MSCs exhibit neuroprotective effects against NaNO2-induced hypoxic brain injury through exerting anti-oxidative effects and providing energy to the brain. PMID- 29323038 TI - Electroacupuncture improves neurovascular unit reconstruction by promoting collateral circulation and angiogenesis. AB - Acupuncture at Shuigou (GV26) shows good clinical efficacy for treating stroke, but its mechanism remains poorly understood. In this study, a cerebral infarction model of ischemia/reperfusion injury received electroacupuncture at GV26 (15 Hz and 1 mA, continuous wave [biphasic pulses], for 5 minutes). Electroacupuncture effectively promoted regional cerebral blood flow on the infarct and non-infarct sides, increased infarct lesions, lectin, and number of blood vessels, upregulated von Willebrand factor and cell proliferation marker Ki67 expression, and diminished neurological severity score. These findings confirm that electroacupuncture at GV26 promotes establishment of collateral circulation and angiogenesis, and improves neurological function. PMID- 29323039 TI - Neuronal injury and tumor necrosis factor-alpha immunoreactivity in the rat hippocampus in the early period of asphyxia-induced cardiac arrest under normothermia. AB - Low survival rate occurs in patients who initially experience a spontaneous return of circulation after cardiac arrest (CA). In this study, we induced asphyxial CA in adult male Sprague-Daley rats, maintained their body temperature at 37 +/- 0.5 degrees C, and then observed the survival rate during the post resuscitation phase. We examined neuronal damage in the hippocampus using cresyl violet (CV) and Fluore-Jade B (F-J B) staining, and pro-inflammatory response using ionized calcium-binding adapter molecule 1 (Iba-1), glial fibrillary acidic protein (GFAP), and tumor necrosis factor-alpha (TNF-alpha) immunohistochemistry in the hippocampus after asphyxial CA in rats under normothermia. Our results show that the survival rate decreased gradually post-CA (about 63% at 6 hours, 37% at 1 day, and 8% at 2 days post-CA). Rats were sacrificed at these points in time post-CA, and no neuronal damage was found in the hippocampus until 1 day post-CA. However, some neurons in the stratum pyramidale of the CA region in the hippocampus were dead 2 days post-CA. Iba-1 immunoreactive microglia in the CA1 region did not change until 1 day post-CA, and they were activated (enlarged cell bodies with short and thicken processes) in all layers 2 days post-CA. Meanwhile, GFAP-immunoreactive astrocytes did not change significantly until 2 days post-CA. TNF-alpha immunoreactivity decreased significantly in neurons of the stratum pyramidale in the CA1 region 6 hours post-CA, decreased gradually until 1 day post-CA, and increased significantly again 2 days post-CA. These findings suggest that low survival rate of normothermic rats in the early period of asphyxia induced CA is related to increased TNF-alpha immunoreactivity, but not to neuronal damage in the hippocampal CA1 region. PMID- 29323040 TI - D-dimer may predict poor outcomes in patients with aneurysmal subarachnoid hemorrhage: a retrospective study. AB - Serum biomarkers may play a reliable role in predicting the outcomes of patients with aneurysmal subarachnoid hemorrhage. This study retrospectively analyzed the relationship between serum biomarkers on admission and outcomes in patients with aneurysmal subarachnoid hemorrhage. We recruited 146 patients with aneurysmal subarachnoid hemorrhage who were treated in Renmin Hospital of Wuhan University of China between 1 May 2014 and 30 March 2016. There were 57 males and 89 females included and average age of included patients was 57.03 years old. Serum samples were taken immediately on admission (within 48 hours after initial hemorrhage) and the levels of serum biomarkers were detected. Baseline information, complications, and outcomes at 6 months were recorded. Univariate and multivariate logistic regression analyses were used to explore the relationship between biomarkers and clinical outcomes. Receiver operating characteristic curves were obtained to investigate the possibility of the biomarkers predicting prognosis. Of the 146 patients, 102 patients achieved good outcomes and 44 patients had poor outcomes. Univariate and multivariate analyses showed that high World Federation of Neurosurgical Societies grade, high serum D-dimer levels, and high neurological complications were significantly associated with poor outcomes. Receiver operating characteristic curves verified that D-dimer levels were associated with poor outcomes. D-dimer levels strongly correlated with neurological complications. In conclusion, we suggest that D-dimer levels are a good independent prognostic factor for poor outcomes in patients with aneurysmal subarachnoid hemorrhage. PMID- 29323041 TI - Central post-stroke pain due to injury of the spinothalamic tract in patients with cerebral infarction: a diffusion tensor tractography imaging study. AB - Many studies using diffusion tensor tractography (DTT) have demonstrated that injury of the spinothalamic tract (STT) is the pathogenetic mechanism of central post-stroke pain (CPSP) in intracerebral hemorrhage; however, there is no DTT study reporting the pathogenetic mechanism of CPSP in cerebral infarction. In this study, we investigated injury of the STT in patients with CPSP following cerebral infarction, using DTT. Five patients with CPSP following cerebral infarction and eight age- and sex-matched healthy control subjects were recruited for this study. STT was examined using DTT. Among DTT parameters of the affected STT, fractional anisotropy and tract volume were decreased by more than two standard deviations in two patients (patients 1 and 2) and three patients (patients 3, 4, and 5), respectively, compared with those of the control subjects, while mean diffusivity value was increased by more than two standard deviations in one patient (patient 2). Regarding DTT configuration, all affected STTs passed through adjacent part of the infarct and three STTs showed narrowing. These findings suggest that injury of the STT might be a pathogenetic etiology of CPSP in patients with cerebral infarction. PMID- 29323042 TI - Mitochondrial protective and anti-apoptotic effects of Rhodiola crenulata extract on hippocampal neurons in a rat model of Alzheimer's disease. AB - In our previous study, we found that the edible alcohol extract of the root of the medicinal plant Rhodiola crenulata (RCE) improved spatial cognition in a rat model of Alzheimer's disease. Another study from our laboratory showed that RCE enhanced neural cell proliferation in the dentate gyrus of the hippocampus and prevented damage to hippocampal neurons in a rat model of chronic stress-induced depression. However, the mechanisms underlying the neuroprotective effects of RCE are unclear. In the present study, we investigated the anti-apoptotic effect of RCE and its neuroprotective mechanism of action in a rat model of Alzheimer's disease established by intracerebroventricular injection of streptozotocin. The rats were pre-administered RCE at doses of 1.5, 3.0 or 6.0 g/kg for 21 days before model establishment. ATP and cytochrome c oxidase levels were significantly decreased in rats with Alzheimer's disease. Furthermore, neuronal injury was obvious in the hippocampus, with the presence of a large number of apoptotic neurons. In comparison, in rats given RCE pretreatment, ATP and cytochrome c oxidase levels were markedly increased, the number of apoptotic neurons was reduced, and mitochondrial injury was mitigated. The 3.0 g/kg dose of RCE had the optimal effect. These findings suggest that pretreatment with RCE prevents mitochondrial dysfunction and protects hippocampal neurons from apoptosis in rats with Alzheimer's disease. PMID- 29323043 TI - Neural computational modeling reveals a major role of corticospinal gating of central oscillations in the generation of essential tremor. AB - Essential tremor, also referred to as familial tremor, is an autosomal dominant genetic disease and the most common movement disorder. It typically involves a postural and motor tremor of the hands, head or other part of the body. Essential tremor is driven by a central oscillation signal in the brain. However, the corticospinal mechanisms involved in the generation of essential tremor are unclear. Therefore, in this study, we used a neural computational model that includes both monosynaptic and multisynaptic corticospinal pathways interacting with a propriospinal neuronal network. A virtual arm model is driven by the central oscillation signal to simulate tremor activity behavior. Cortical descending commands are classified as alpha or gamma through monosynaptic or multisynaptic corticospinal pathways, which converge respectively on alpha or gamma motoneurons in the spinal cord. Several scenarios are evaluated based on the central oscillation signal passing down to the spinal motoneurons via each descending pathway. The simulated behaviors are compared with clinical essential tremor characteristics to identify the corticospinal pathways responsible for transmitting the central oscillation signal. A propriospinal neuron with strong cortical inhibition performs a gating function in the generation of essential tremor. Our results indicate that the propriospinal neuronal network is essential for relaying the central oscillation signal and the production of essential tremor. PMID- 29323044 TI - Magnetic resonance imaging-guided focused ultrasound to increase localized blood spinal cord barrier permeability. AB - Spinal cord injury (SCI) affects thousands of people every year in the USA, and most patients are left with some permanent paralysis. Therapeutic options are limited and only modestly affect outcome. To address this issue, we used magnetic resonance imaging-guided focused ultrasound (MRgFUS) as a non-invasive approach to increase permeability in the blood-spinal cord barrier (BSCB). We hypothesize that localized, controlled sonoporation of the BSCB by MRgFUS will aid delivery of therapeutics to the injury. Here, we report our preliminary findings for the ability of MRgFUS to increase BSCB permeability in the thoracic spinal cord of a normal rat model. First, an excised portion of normal rat spinal column was used to characterize the acoustic field and to estimate the insertion losses that could be expected in an MRgFUS blood spinal cord barrier opening. Then, in normal rats, MRgFUS was applied in combination with intravenously administered microbubbles to the spinal cord region. Permeability of the BSCB was indicated as signal enhancement by contrast administered prior to T1-weighted magnetic resonance imaging and verified by Evans blue dye. Neurological testing using the Basso, Beattie, and Breshnahan scale and the ladder walk was normal in 8 of 10 rats tested. Two rats showed minor impairment indicating need for further refinement of parameters. No gross tissue damage was evident by histology. In this study, we have opened successfully the blood spinal cord barrier in the thoracic region of the normal rat spine using magnetic resonance-guided focused ultrasound combined with microbubbles. PMID- 29323045 TI - Does vitamin C have the ability to augment the therapeutic effect of bone marrow derived mesenchymal stem cells on spinal cord injury? AB - Methylprednisolone (MP) is currently the only drug confirmed to exhibit a neuroprotective effect on acute spinal cord injury (SCI). Vitamin C (VC) is a natural water-soluble antioxidant that exerts neuroprotective effects through eliminating free radical damage to nerve cells. Bone marrow mesenchymal stem cells (BMMSCs), as multipotent stem cells, are promising candidates in SCI repair. To evaluate the therapeutic effects of MP, VC and BMMSCs on traumatic SCI, 80 adult male rats were randomly divided into seven groups: control, SCI (SCI induction by weight-drop method), MP (SCI induction, followed by administration of 30 mg/kg MP via the tail vein, once every other 6 hours, for five times), VC (SCI induction, followed by intraperitoneal administration of 100 mg/kg VC once a day, for 28 days), MP + VC (SCI induction, followed by administration of MP and VC as the former), BMMSCs (SCI induction, followed by injection of 3 * 106 BMMSCs at the injury site), and BMMSCs + VC (SCI induction, followed by BMMSCs injection and VC administration as the former). Locomotor recovery was assessed using the Basso Mouse Scale. Injured spinal cord tissue was evaluated using hematoxylin-eosin staining and immunohistochemical staining. Expression of transforming growth factor-beta, tumor necrosis factor-alpha, and matrix metalloproteinase-2 genes was determined using real-time quantitative PCR. BMMSCs intervention better promoted recovery of nerve function of rats with SCI, mitigated nerve cell damage, and decreased expression of transforming growth factor-beta, tumor necrosis factor-alpha, and matrix metalloproteinase-2 genes than MP and/or VC. More importantly, BMMSCs in combination with VC induced more obvious improvements. These results suggest that VC can enhance the neuroprotective effects of BMMSCs against SCI. PMID- 29323046 TI - Non-concomitant cortical structural and functional alterations in sensorimotor areas following incomplete spinal cord injury. AB - Brain plasticity, including anatomical changes and functional reorganization, is the physiological basis of functional recovery after spinal cord injury (SCI). The correlation between brain anatomical changes and functional reorganization after SCI is unclear. This study aimed to explore whether alterations of cortical structure and network function are concomitant in sensorimotor areas after incomplete SCI. Eighteen patients with incomplete SCI (mean age 40.94 +/- 14.10 years old; male:female, 7:11) and 18 healthy subjects (37.33 +/- 11.79 years old; male:female, 7:11) were studied by resting state functional magnetic resonance imaging. Gray matter volume (GMV) and functional connectivity were used to evaluate cortical structure and network function, respectively. There was no significant alteration of GMV in sensorimotor areas in patients with incomplete SCI compared with healthy subjects. Intra-hemispheric functional connectivity between left primary somatosensory cortex (BA1) and left primary motor cortex (BA4), and left BA1 and left somatosensory association cortex (BA5) was decreased, as well as inter-hemispheric functional connectivity between left BA1 and right BA4, left BA1 and right BA5, and left BA4 and right BA5 in patients with SCI. Functional connectivity between both BA4 areas was also decreased. The decreased functional connectivity between the left BA1 and the right BA4 positively correlated with American Spinal Injury Association sensory score in SCI patients. The results indicate that alterations of cortical anatomical structure and network functional connectivity in sensorimotor areas were non concomitant in patients with incomplete SCI, indicating the network functional changes in sensorimotor areas may not be dependent on anatomic structure. The strength of functional connectivity within sensorimotor areas could serve as a potential imaging biomarker for assessment and prediction of sensory function in patients with incomplete SCI. This trial was registered with the Chinese Clinical Trial Registry (registration number: ChiCTR-ROC-17013566). PMID- 29323047 TI - Diffusion tensor imaging of spinal microstructure in healthy adults: improved resolution with the readout segmentation of long variable echo-trains. AB - Diffusion tensor imaging plays an important role in the accurate diagnosis and prognosis of spinal cord diseases. However, because of technical limitations, the imaging sequences used in this technique cannot reveal the fine structure of the spinal cord with precision. We used the readout segmentation of long variable echo-trains (RESOLVE) sequence in this cross-sectional study of 45 healthy volunteers aged 20 to 63 years. We found that the RESOLVE sequence significantly increased the resolution of the diffusion images and improved the median signal to-noise ratio of the middle (C4-6) and lower (C7-T1) cervical segments to the level of the upper cervical segment. In addition, the values of fractional anisotropy and radial diffusivity were significantly higher in white matter than in gray matter. Our study verified that the RESOLVE sequence could improve resolution of diffusion tensor imaging in clinical applications and provide accurate baseline data for the diagnosis and treatment of cervical spinal cord diseases. PMID- 29323048 TI - Topiramate as a neuroprotective agent in a rat model of spinal cord injury. AB - Topiramate (TPM) is a widely used antiepileptic and antimigraine agent which has been shown to exert neuroprotective effects in various experimental traumatic brain injury and stroke models. However, its utility in spinal cord injury has not been studied extensively. Thus, we evaluated effects of TPM on secondary cellular injury mechanisms in an experimental rat model of traumatic spinal cord injury (SCI). After rat models of thoracic contusive SCI were established by free weight-drop method, TPM (40 mg/kg) was given at 12-hour intervals for four times orally. Post TPM treatment, malondialdehyde and protein carbonyl levels were significantly reduced and reduced glutathione levels were increased, while immunoreactivity for endothelial nitric oxide synthase, inducible nitric oxide synthase, and apoptotic peptidase activating factor 1 was diminished in SCI rats. In addition, TPM treatment improved the functional recovery of SCI rats. This study suggests that administration of TPM exerts neuroprotective effects on SCI. PMID- 29323049 TI - Autologous transplantation with fewer fibers repairs large peripheral nerve defects. AB - Peripheral nerve injury is a serious disease and its repair is challenging. A cable-style autologous graft is the gold standard for repairing long peripheral nerve defects; however, ensuring that the minimum number of transplanted nerve attains maximum therapeutic effect remains poorly understood. In this study, a rat model of common peroneal nerve defect was established by resecting a 10-mm long right common peroneal nerve. Rats receiving transplantation of the common peroneal nerve in situ were designated as the in situ graft group. Ipsilateral sural nerves (10-30 mm long) were resected to establish the one sural nerve graft group, two sural nerves cable-style nerve graft group and three sural nerves cable-style nerve graft group. Each bundle of the peroneal nerve was 10 mm long. To reduce the barrier effect due to invasion by surrounding tissue and connective tissue overgrowth between neural stumps, small gap sleeve suture was used in both proximal and distal terminals to allow repair of the injured common peroneal nerve. At three months postoperatively, recovery of nerve function and morphology was observed using osmium tetroxide staining and functional detection. The results showed that the number of regenerated nerve fibers, common peroneal nerve function index, motor nerve conduction velocity, recovery of myodynamia, and wet weight ratios of tibialis anterior muscle were not significantly different among the one sural nerve graft group, two sural nerves cable-style nerve graft group, and three sural nerves cable-style nerve graft group. These data suggest that the repair effect achieved using one sural nerve graft with a lower number of nerve fibers is the same as that achieved using the two sural nerves cable-style nerve graft and three sural nerves cable-style nerve graft. This indicates that according to the 'multiple amplification' phenomenon, one small nerve graft can provide a good therapeutic effect for a large peripheral nerve defect. PMID- 29323050 TI - Long non-coding RNA NONMMUG014387 promotes Schwann cell proliferation after peripheral nerve injury. AB - Schwann cells play a critical role in peripheral nerve regeneration through dedifferentiation and proliferation. In a previous study, we performed microarray analysis of the sciatic nerve after injury. Accordingly, we predicted that long non-coding RNA NONMMUG014387 may promote Schwann cell proliferation after peripheral nerve injury, as bioinformatic analysis revealed that the target gene of NONMMUG014387 was collagen triple helix repeat containing 1 (Cthrc1). Cthrc1 may promote cell proliferation in a variety of cells by activating Wnt/PCP signaling. Nonetheless, bioinformatic analysis still needs to be verified by biological experiment. In this study, the candidate long non-coding RNA, NONMMUG014387, was overexpressed in mouse Schwann cells by recombinant adenovirus transfection. Plasmid pHBAd-MCMV-GFP-NONMMUG014387 and pHBAd-MCMV-GFP were transfected into Schwann cells. Schwann cells were divided into three groups: control (Schwann cells without intervention), Ad-GFP (Schwann cells with GFP overexpression), and Ad-NONMMUGO148387 (Schwann cells with GFP and NONMMUGO148387 overexpression). Cell Counting Kit-8 assay was used to evaluate proliferative capability of mouse Schwann cells after NONMMUG014387 overexpression. Polymerase chain reaction and western blot assay were performed to investigate target genes and downstream pathways of NONMMUG014387. Cell proliferation was significantly increased in Schwann cells overexpressing lncRNA NONMMUG014387 compared with the other two groups. Further, compared with the control group, mRNA and protein levels of Cthrc1, Wnt5a, ROR2, RhoA, Rac1, JNK, and ROCK were visibly up regulated in the Ad-NONMMUGO148387 group. Our findings confirm that long non coding RNA NONMMUG014387 can promote proliferation of Schwann cells surrounding the injury site through targeting Cthrc1 and activating the Wnt/PCP pathway. PMID- 29323051 TI - Notch pathway inhibitor DAPT enhances Atoh1 activity to generate new hair cells in situ in rat cochleae. AB - Atoh1 overexpression in cochlear epithelium induces new hair cell formation. Use of adenovirus-mediated Atoh1 overexpression has mainly focused on the rat lesser epithelial ridge and induces ectopic hair cell regeneration. The sensory region of rat cochlea is difficult to transfect, thus new hair cells are rarely produced in situ in rat cochlear explants. After culturing rat cochleae in medium containing 10% fetal bovine serum, adenovirus successfully infected the sensory region as the width of the supporting cell area was significantly increased. Adenovirus encoding Atoh1 infected the sensory region and induced hair cell formation in situ. Combined application of the Notch inhibitor DAPT and Atoh1 increased the Atoh1 expression level and decreased hes1 and hes5 levels, further promoting hair cell generation. Our results demonstrate that DAPT enhances Atoh1 activity to promote hair cell regeneration in rat cochlear sensory epithelium in vitro. PMID- 29323052 TI - Quantification of intermuscular and intramuscular adipose tissue using magnetic resonance imaging after neurodegenerative disorders. AB - Ectopic adiposity has gained considerable attention because of its tight association with metabolic and cardiovascular health in persons with spinal cord injury (SCI). Ectopic adiposity is characterized by the storage of adipose tissue in non-subcutaneous sites. Magnetic resonance imaging (MRI) has proven to be an effective tool in quantifying ectopic adiposity and provides the opportunity to measure different adipose depots including intermuscular adipose tissue (IMAT) and intramuscular adipose tissue (IntraMAT) or intramuscular fat (IMF). It is highly important to distinguish and clearly define these compartments, because controversy still exists on how to accurately quantify these adipose depots. Investigators have relied on separating muscle from fat pixels based on their characteristic signal intensities. A common technique is plotting a threshold histogram that clearly separates between muscle and fat peaks. The cut-offs to separate between muscle and fat peaks are still not clearly defined and different cut-offs have been identified. This review will outline and compare the Midpoint and Otsu techniques, two methods used to determine the threshold between muscle and fat pixels on T1 weighted MRI. The process of water/fat segmentation using the Dixon method will also be outlined. We are hopeful that this review will trigger more research towards accurately quantifying ectopic adiposity due to its high relevance to cardiometabolic health after SCI. PMID- 29323054 TI - From Editor's desk. PMID- 29323055 TI - Immunohistochemical and molecular markers in urothelial carcinoma. PMID- 29323053 TI - Roles of neural stem cells in the repair of peripheral nerve injury. AB - Currently, researchers are using neural stem cell transplantation to promote regeneration after peripheral nerve injury, as neural stem cells play an important role in peripheral nerve injury repair. This article reviews recent research progress of the role of neural stem cells in the repair of peripheral nerve injury. Neural stem cells can not only differentiate into neurons, astrocytes and oligodendrocytes, but can also differentiate into Schwann-like cells, which promote neurite outgrowth around the injury. Transplanted neural stem cells can differentiate into motor neurons that innervate muscles and promote the recovery of neurological function. To promote the repair of peripheral nerve injury, neural stem cells secrete various neurotrophic factors, including brain-derived neurotrophic factor, fibroblast growth factor, nerve growth factor, insulin-like growth factor and hepatocyte growth factor. In addition, neural stem cells also promote regeneration of the axonal myelin sheath, angiogenesis, and immune regulation. It can be concluded that neural stem cells promote the repair of peripheral nerve injury through a variety of ways. PMID- 29323056 TI - Role of salivary biomarkers in early detection of oral squamous cell carcinoma. AB - INTRODUCTION: Oral cancer is prevalent worldwide and is a common cause of morbidity and mortality. Despite advances in treatment, the survival of patients with oral cancer has not significantly improved over the past several decades owing to late detection and treatment failures. The present study was undertaken with an objective to explore the role of salivary CYFRA 21-1, CA 19-9, lactate dehydrogenase (LDH), total proteins, and amylase as biochemical markers of oral squamous cell carcinoma (OSCC) and premalignant lesions (PML). MATERIALS AND METHODS: This was a cross-sectional study for diagnostic test evaluation conducted in KGMC Lucknow, between 2010 and 2011. The study population comprised newly diagnosed cases of OSCC (Group I) and PML of oral cavity (Group II) who had not yet received any definitive therapy along with age- and gender-matched healthy controls (Group III). Unstimulated whole saliva was collected from the cases and controls. CYFRA 21-1 and CA19-9 were estimated by ELISA while LDH, total proteins, and amylase were evaluated as per standard kit method. RESULTS: Both OSCC and PML group showed increased salivary CYFRA 21-1, LDH, and total protein concentrations as compared to controls, but the increase in PML was significantly lower as compared to OSCC. A considerable decrease in concentration of amylase was seen in OSCC and PML as compared to control group. CONCLUSION: The outcome of this study suggests that concurrent analysis of salivary CYFRA 21-1, LDH, total protein, and amylase can be utilized for early detection of oral cancer. PMID- 29323057 TI - Hypoxia-induced factor-1 alpha, vascular endothelial growth factor expression in BRCA1-related breast cancer: A prospective study in tertiary care hospital. AB - INTRODUCTION: Breast cancer is the commonest cause of death among middle aged women. BRCA1 associated tumors carry a poor prognosis. Angiogenesis is considered necessary for tumor growth and for its metastasis. Hypoxia stimulates HIF-1alpha which then activates transcription of various proangiogenic cytokines like VEGF. In the present study we examined HIF-1alpha expression, sVEGF levels and BRCA1 mutations and their relation with clinicopathological parameters. We also determined whether the angiogenic markers have different role in angiogenesis in BRCA1 related cancers as compared to sporadic breast cancers. MATERIALS AND METHODS: The study was conducted on 50 cases of breast cancer specimens. Histopathological typing and grading was done followed by immunohistochemistry for BRCA1 and HIF-1alpha. VEGF was done in the serum by ELISA. RESULTS: All the tumors were infiltrating ductal carcinoma NOS. 16 cases were reported grade II and 34 cases as grade III. On immunohistochemistry, 27 cases showed BRCA1 positivity and HIF-1alpha was positive in 39 cases. sVEGF levels were increased in 21 cases (42%). BRCA1 positivity, HIF-1alpha expression and increased VEGF levels were significantly associated with higher grade and lymph node metastasis. There was significant correlation of BRCA1 positivity with increased HIF-1alpha expression (P = 0.009) and increased sVEGF levels (P = 0.005). CONCLUSION: Our findings suggest that BRCA 1 positive tumors have unique molecular profile and different mechanism of tumorigenesis. Such tumors are associated with increased HIF-1alpha expression and VEGF levels. PMID- 29323058 TI - Assessment of topoisomerase II-alpha gene status by dual color chromogenic in situ hybridization in a set of Iraqi patients with invasive breast carcinoma. AB - BACKGROUND: The human epidermal growth factor receptor 2(HER2) proto-oncogene is overexpressed or amplified in approximately 15%-25% of invasive breast cancers. Approximately 35% of HER2-amplified breast cancers have coamplification of the topoisomerase II-alpha (TOP2A) gene encoding an enzyme that is a major target of anthracyclines. Hence, the determination of genetic alteration (amplification or deletion) of both genes is considered as an important predictive factor that determines the response of breast cancer patients to treatment. The aims of this study are to determinate TOP2A status gene amplification in a set of Iraqi patients with breast cancer that have had an equivocal (2+) and positive HER2/neu by immunohistochemistry (IHC) and to compare the results with estrogen receptor (ER) and progesterone receptor (PR) and HER2/neu status. PATIENTS AND METHODS: A cross-sectional prospective study done on 53 patients with invasive breast carcinoma. Twenty-six out of total 53 cases were positive HER2/neu (3+), the remaining 27 equivocal HER2-IHC (2+) cases reanalyzed using dual-color chromogenic in situ hybridization (ZytoVision) probe kit for further identification of HER2/neu gene amplification. Using chromogenic in situ hybridization (CISH), TOP2A gene status determination was done for all cases. RESULTS: There is a direct significant correlation between TOP2A gene amplification and HER2/neu positivity, P < 0.05 in that 15 (39.4%) out of 38 positive HER2/neu cases were associated with topoisomerase gene amplification. Regarding relation of topoisomerase gene to hormone receptor status (ER and PR), there was a significant negative relationship between the gene and ER receptor status. The higher level of gene amplification was noticed in ER and PR negative cases in about 13 (43.3%) and 14 (48.2%) for ER and PR, respectively. CONCLUSION: TOP2A gene status has a significantly positive correlation with HER2/neu status while it has a significantly negative correlation with hormone receptor status. PMID- 29323059 TI - Histological and morphometric analysis of dilated cardiomyopathy with special reference to collagen IV expression. AB - INTRODUCTION: Collagen distribution alterations are well known in dilated cardiomyopathy. There are also changes in microvasculature along with other histomorphorphological features. AIMS AND OBJECTIVES: To study the histomorphological features of DCM along with their quantitative correlation with LVEF. Alterations in collagen IV distribution pattern and microvasculature in DCM were also evaluated. MATERIALS AND METHODS: The present study includes 34 right ventricular endomyocardial biopsies, 7 explanted native hearts and 41 autopsy control hearts. Sections were taken from lower half of right interventricular septum and stained for H and E, Masson trichrome and immunohistochemistry for CD34, SMA and Collagen IV to study the histological features, pattern of fibrosis, capillary and arteriolar distribution and collagen IV expression respectively. Morphometric analysis was carried out in all cases and controls using Image analysis software Image pro plus 7 and correlated with left ventricular ejection fraction. RESULTS: The histomorphological changes of DCM include myocyte hypertrophy, nucleomegaly, and interstitial fibrosis. Interfiber fibrosis was the commonest. There was evidence of myocarditis, ischemic change and vessel wall alterations. Considerable alteration in Collagen IV distribution was observed with reduction in intensity and proportion of staining around myocytes quantified using Allred scoring against uniform pericellular staining in controls. Morphometric analysis revealed significant increase in nuclear area, myocyte width, percentage of fibrosis and reduction in capillary myocyte ratio in cases as compared to controls. There was no significant difference in arteriolar density. No significant association was observed between morphometric parameters and LVEF. CONCLUSION: Histomorphological changes in DCM are non-specific. Quantitation of histological parameters cannot be used to predict the disease progression as there was no significant correlation with LVEF. There is appreciable alteration in Collagen IV distribution in DCM owing to extracellular matrix alterations. PMID- 29323060 TI - Spectrum of hepatobiliary cystic lesions: A 7-year experience at a tertiary care referral center in North India and review of literature. AB - CONTEXT: Cysts arising from the hepatobiliary tree are a group of heterogeneous lesions with regard to pathogenesis, clinical presentation, and radiological finding. They can be intrahepatic or extrahepatic, developmental, secondary to infective/inflammatory etiologies, as well as neoplastic. This study was conducted to determine the spectrum of hepatobiliary cysts in surgically intervened cases, with regard to their prevalence, histological spectrum, and clinicoradiological correlation, wherever possible. METHODS: In this retrospective observational study, hematoxylin and eosin stained slides of all cases of hepatobiliary cystic lesions, operated between 2009 and 2016 were reviewed. Special stains as reticulin, Masson's trichrome, and periodic acid Schiff were done wherever necessary. Overall prevalence, age-sex distribution, clinical presentation and histopathological patterns were studied. Relevant imaging findings were correlated wherever possible. RESULTS: A total of 312 cases of hepatobiliary cysts were identified, the majority in females. Choledochal cysts (CCs) were the most common type (n = 198,63.5%), followed by hydatid cysts (n = 73,23.3%), simple hepatic cysts (n = 10,3.2%), congenital hepatic fibrosis (n = 10,3.2%), biliary cystadenomas (n = 4,1.2%) hepatic mesenchymal hamartomas (n = 7,2.2%), and cavernous hemangiomas (n = 3,0.9%). Fibropolycystic liver disease (n = 2,0.6%), Caroli's disease (n = 1, 0.3%), liver abscess (n = 2, 0.6%), infantile hemangioendothelioma (n = 1,0.3%), and biliary cystadenocarcinomas (n = 1,0.3%) were rare. Lesions noted mostly in 1st decade of life were: CCs, fibrocystic liver disease, Caroli's syndrome, cystic mesenchymal hamartoma, and infantile hemangioendotheliomas. CONCLUSION: In our cohort of surgically intervened cases of hepatobiliary cystic lesions from a tertiary care hospital in North India, the CCs, followed by hydatid cyst were the most common lesions. Histology can play vital role in characterization, as often clinical findings and radiology can overlap. PMID- 29323061 TI - Accuracy of vascular invasion reporting in hepatocellular carcinoma before and after implementation of subspecialty surgical pathology sign-out. AB - CONTEXT: Liver cancers (including hepatocellular carcinoma [HCC] and cholangiocarcinoma) are the fifth most common cause of cancer death. The most powerful independent histologic predictor of overall survival after transplantation for HCC is the presence of microscopic vascular invasion (VI). AIMS: Given that VI is known to have somewhat high interobserver variability in both HCC and other tumors, we hypothesized that pathologists with special interest and training in liver pathology would be more likely to identify and report VI in HCC than would general surgical pathologists. SETTINGS AND DESIGN: We searched our departmental surgical pathology archives for transplant hepatectomies performed for HCC. SUBJECTS AND METHODS: We identified 143 such cases with available sign-out reports and hematoxylin and eosin-stained slides. STATISTICAL ANALYSIS USED: Kappa results (level of agreement) were calculated. RESULTS: Before surgical pathology subspecialty sign-out (SSSO) implementation, 49 of 88 HCC cases were reported as negative for VI; on rereview, 20 of these had VI. After SSSO implementation, 39 of 55 cases were reported as negative for VI; on our review, 8 of these had VI. Kappa (agreement) between general SO and subspecialty rereview was 0.562 (95% confidence interval [CI] = 0.411-0.714) "weak agreement." Kappa (agreement) between SSSO and rereview by select liver pathologists was 0.693 (95% CI = 0.505-0.880) "moderate agreement." CONCLUSIONS: Our study is one of only a few so far that have suggested improved accuracy of certain parameters under SSSO. PMID- 29323062 TI - Role of p53 and Ki-67 immunomarkers in carcinoma of urinary bladder. AB - BACKGROUND: Urothelial carcinoma is common urinary malignancy responsible for a significant proportion of cancer morbidity and mortality. We carried out the present study to demonstrate the clinicohistopathological features and to correlate the p53 and Ki-67 immunoexpression with grade and stage of bladder carcinomas. MATERIALS AND METHODS: We investigated 110 cases of bladder tumor. Grading and staging were done according to the WHO-2004 and American Joint Committee on Cancer-TNM staging recommendations. Immunohistochemical staining for p53 and Ki-67 was performed in all the cases, categorized as high and low expression taking 20% positivity as cutoff value. Statistical analysis was done using McNemar's Chi-square test and Fisher's exact test. RESULTS: There were 61 cases of high grade and 49 cases of low grade exhibiting urothelial carcinoma as the most common variant (97.3%). Muscle invasive carcinomas (pT2) noted in 29 cases whereas 23 and 58 cases revealed stage pTa and pT1, respectively. Evaluation of p53 and Ki-67 immunoexpression showed a significant association with histological grade and stage individually and also in combination (P < 0.05). CONCLUSION: Our results corroborate with the opinion that combined use of p53 and Ki-67 immunomarkers may provide additional prognostic information along with histological grading and staging in bladder carcinomas. PMID- 29323063 TI - Evaluation of MUC1 and P53 expressions in noninvasive papillary urothelial neoplasms of bladder, their relationship with tumor grade and role in the differential diagnosis. AB - PURPOSE: The aim of this study was to investigate the usability of MUC1 and p53 for differential diagnosis of noninvasive papillary urothelial neoplasias, especially for distinguishing papillary urothelial neoplasm of low malignant potential (PUNLMP) from low-grade papillary urothelial carcinoma (LGPUC) when the histologic signs are not obvious. MATERIALS AND METHODS: Seventeen biopsy specimens of the patients with PUNLMP, 20 with LGPUC and 13 with high-grade papillary urothelial carcinoma (HGPUC) were stained for MUC1 and p53 protein by immunohistochemical methods. Histological grading was performed according to an algorithm, which allows histological parameters used in 2004 WHO/ISUP 1998. RESULTS: We had obvious statistical difference for aberrant expression pattern of MUC1 between PUNLMP and LGPUC-HGPUC (P = 0.007). Positivity of MUC1 expression in cytoplasm of basal cells was more observed in HGPUC and LGPUC, whereas PUNLMP was more often showing apical and superficial positivity of MUC1 expression (P = 0.001 and 0.011). Nuclear p53 protein in HGPUC was obviously more frequent than that in LGPUC and PUNLMP (P < 0.001). Measures showed statistical difference among aberrant MUC1 expression, p53 overexpression, and tumor grade (P < 0.001). CONCLUSIONS: MUC1 and p53 may be helpful immunohistochemical markers for distinguishing PUNLMP from LGPUC and HGPUC, when the histologic signs are not obvious. PMID- 29323064 TI - Vascular endothelial growth factor expression in placenta of hypertensive disorder in pregnancy. AB - INTRODUCTION: Hypertensive disorder in pregnancy (HDP) represents the most common medical complication in pregnancy. It is the leading cause of maternal and perinatal mortality and morbidity. Vascular endothelial growth factor (VEGF) stimulates vascular endothelial cell growth, survival, and proliferation, and they are known to be expressed in human placenta. The aim of this study was to determine the VEGF expression in the placenta of hypertensive and normotensive patients. MATERIALS AND METHODS: This is a retrospective, cross-sectional study from January 1, 2015 to December 31, 2015. A total of 30 placentae comprised of 15 hypertensive and 15 normotensive cases were assessed. VEGF expression in placenta was assessed by immunohistochemistry, and the number of syncytial knots was counted. RESULTS: Our study showed an increased syncytial knot formation in the placenta of hypertensive mothers. VEGF expression was seen in syncytiotrophoblasts of 14 of the hypertensive cases (14/15, 93.3%), while only two of the normotensive cases were positive (2/15, 13.3%). There were no statistically significant differences in VEGF expression in other placenta cells, that is, cytotrophoblasts (P = 1.0), decidual cells (0.1394), maternal endothelial cells (0.5977), and fetal endothelial cells (P = 1.0). CONCLUSIONS: This study showed an increased number of syncytial knots is a consistent histological finding in the placenta of patient with HDP. VEGF expression was significantly increased in syncytiotrophoblasts in placenta of hypertensive group, and it could be used as a biomarker for hypertension. PMID- 29323065 TI - Emerging role of preputial vascular pattern and postoperative microvessel density in cases of proximal hypospadias: A pilot study. AB - INTRODUCTION: Understanding of anatomical vascular patterns and anatomy of prepuce is critical for a good outcome in hypospadias surgery. A well vascularized neourethral and preputial flaps used for repair are exceptionally important for a successful outcome, especially in cases of proximal hypospadias undergoing one-stage procedures. OBJECTIVE: To evaluate the vascular anatomy of prepuce in cases of proximal hypospadias and to evaluate microvessel density (MVD) by immunohistochemistry and its correlation with postoperative complications. MATERIAL AND METHODS: This was a prospective observational study done between November 2013 and March 2015; 33 cases of proximal hypospadias undergoing surgery were evaluated for vascular pattern by intraoperative cold light method and postoperatively by MVD. RESULTS: Twenty-six cases with a predominant vessel pattern were identified (18 of type 1, 7 of type 2, and 1 of type 3), while seven cases had a reticular pattern (type 4) on cold light transillumination. The mean MVD in cases with predominant vascular pattern (Type 1-3) was 64.83. In cases of Type 4 pattern, mean MVD was found to be low 55.57 (P = 0.37). Patients who underwent single-stage surgery and developed postoperative complications had a low MVD score (mean 45.88, P = 0.040). CONCLUSION: Cold light transillumination is an effective perioperative test, reliable in the assessment of preputial vascularity. There is no statistically significant difference between the MVD of predominant vascular pattern and reticular pattern signifying that MVD may or may not be good in a given vascular pattern. MVD can be a helpful marker in assessing prognosis of repair in proximal hypospadias. PMID- 29323066 TI - Familiar trespassers in histopathology: An obstacle in diagnosis? A single-blind study. AB - BACKGROUND: Histopathologists encounter strange structures in tissue sections that appear unrelated to tissues, and these artifacts may be misinterpreted and misdiagnosed as pathological lesions. These substances may either be present within the tissues or can get implanted into tissue during biopsy procedure or laboratory handling or processing. AIMS: The aim of this study is to observe the microscopic appearance of different abnormal structures like commonly implanted food particles or easily incorporated substances during tissue processing with their probable histological misdiagnosis. MATERIALS AND METHODS: Certain food particles, suture materials, wood pieces, insects, and filter paper were intentionally introduced in the tissue specimens of uterus and lung. Following routine processing and hematoxylin and eosin staining, the slides were subjected to single-blind study and viewed under light and polarizing microscope. RESULTS: The vivid appearances of these structures lead to histological misdiagnosis. CONCLUSION: Knowledge and familiarity of these commonly encountered extraneous substances will help to prevent misinterpretation. PMID- 29323067 TI - Modified Cajal's trichrome stain as a diagnostic aid in the study of epithelial pathology. AB - BACKGROUND: Diagnosis of initial epithelial pathology maybe difficult in Squamous Cell Carcinoma (SCC), Carcinoma In Situ and other atypical epithelial malignancies, under routine Haematoxylin and Eosin (H and E) stain. The detection of minor basement membrane alterations in doubtful cases is both time consuming and confusing. AIMS: To evaluate efficacy of Modified Cajal's Trichrome Stain (CTS) in relation to Haematoxylin and Eosin for study of epithelial dysplasia, carcinoma in situ, micro invasive SCC, frank SCC, and SCC in lymph nodes. MATERIALS AND METHODS: Formalin-fixed, paraffin-embedded tissue blocks of mild epithelial dysplasia (n = 2), moderate epithelial dysplasia (n = 2), severe epithelial dysplasia (n = 4), carcinoma in situ (n = 1), micro-invasive SCC (n = 4), verrucous carcinoma (n = 1), and frank OSCC (n = 5) were stained with CTS and H&E. The sections were compared based on set histopathological criteria. RESULTS AND CONCLUSION: In SCC cases stained with CTS, invasion into connective tissue and keratin pearls were strikingly evident. Depth of invasion could be more accurately determined. Tumour cells in lymph node were intensely contrasted and easily discernible. Thus, CTS is a good differential stain, clearly delineating the epithelial elements from the connective tissue elements visually. This helps in tracing the basement membrane very clearly. It is an economic, rapid and easy to use method which cannot replace Haematoxylin and Eosin stain in cancer diagnosis, but can definitely be used adjunctive to it. Prompt diagnosis is crucial to effective treatment, and this stain assists in early and rapid diagnosis of cancer. PMID- 29323068 TI - Story of survival in anaplastic large cell lymphoma - sometimes more than the anaplastic lymphoma kinase status: An evaluation of pathologic prognostic factors in 102 cases. AB - INTRODUCTION: Systemic anaplastic large cell lymphoma (ALCL) accounts for 5%-10% of adult non Hodgkin's lymphoma (NHL) and 10%-30% of childhood NHL. Owing to significant differences in survival and gene expression profile, current WHO classifies ALCL into two distinct entities as anaplastic lymphoma receptor tyrosine kinase (ALK) positive and ALK negative ALCL with ALK expression by tumour as a good prognostic indicator. However, in our institute which is a cancer referral institute, our preliminary experience was that even ALK positive tumours did not fare well as compared to ALK- negative ALCL. So, the current study aims at exploring more clinical and pathological factors impacting survival in ALCL patients. OBJECTIVE: To study clinical and pathological prognostic factors in cases of ALCL. METHODS: 102 cases of ALCL were retrieved from pathology database. Pathological features and clinical features of these cases were recorded and factors found to impact overall survival (OAS) and disease-free survival (DFS) curves were identified based on univariate and multivariate analysis. RESULTS: ALK 1 expression was seen in 71/102 (69.6%) cases and was not found to impact OAS or DFS. The 2 year OAS rate for ALK positive patients was 63.5% and DFS rate was 54.4%, while for ALK negative patients, the OAS was 60.5% and DFS was 43.5%. The Ann Arbor stage, performance status, international prognostic index, histological subtype, and the degree of the background inflammatory infiltrate were found to impact the OAS significantly. Increased reactive inflammatory component also negatively impacted DFS. In the multivariate analysis, only the histologic type emerged as significant for OAS. CONCLUSION: Though ALK plays a role in prognostication of systemic ALCL, advanced stage disease and an inflammatory milieu may modulate the final outcome. We report a study of clinical and pathologic prognostic features in 102 cases of anaplastic large cell lymphoma (ALCL) from a cancer referral institute in India. Anaplastic lymphoma receptor tyrosine kinase (ALK-1) expression was seen in 71/102 (69.6%) cases and was not found to impact overall survival (OAS) or disease-free survival (DFS). The 2-year OAS rate for ALK-positive patients was 63.5% and DFS rate was 54.4%, while for ALK-negative patients, the OAS was 60.5% and DFS was 43.5%. The Ann Arbor stage, performance status, international prognostic index, histological subtype, and the degree of the background inflammatory infiltrate were found to impact the OAS significantly. Increased reactive inflammatory component also negatively impacted DFS. In the multivariate analysis, only the histologic type emerged as significant for OAS. Thus, though ALK plays a role in prognostication of systemic ALCL, advanced stage disease and an inflammatory milieu may modulate the final outcome. PMID- 29323069 TI - Recurrent dermatophytosis: A rising problem in Sikkim, a Himalayan state of India. AB - Changing pattern of dermatophytic infection among people of Sikkim over the past few years and its recurrence rate has brought a need to do a study on clinical pattern and its recurrence from this part of the country. The objectives of this study are to discern the clinical patterns of dermatophytosis, identification of the isolated fungi to its species level and to see the pattern of its recurrence. The study was carried out from January 2015 to May 2016. A total of 192 samples were collected from the patients with clinical findings of dermatophytic infection. Required history of the patients was taken, followed by clinical examination of the lesions and sample collection. The samples were processed for mycological study till species identification and a follow up of patients were done to assess its recurrence pattern. The age distribution of the patients was from 2 to 80 years. The mean and median age was 30.33 and 33 years respectively. The male female ratio was 1.8:1. Dermatophytosis was noted more commonly in students (n = 64, 33.33%) and jawans (n = 44, 22.92%). Maximum occurrence was noted from April to July (n = 106, 55.20%) and was seen mainly in young Hindu males. Tinea corporis (n = 104, 54.16%) was the most common clinical manifestation followed by tinea unguium (n = 30, 15.63%). T. mentagrophyte (40%) was the most common species followed by T. schoenleinii (33.3%), T. tonsurans (16.6%) and T. rubrum (6.6%). The recurrence rate was seen most commonly in clinical cases of tinea faciei 100%, followed by tinea pedis 80% and tinea unguium 46.6%. Overall clinical cure rate was 58.3% and recurrence rate was 34.3%. In the isolated species of dermatophytes, the recurrence rate was 73.68% and that of non-dermatophytes it was 28.07%. Dermatophytosis is an important health problem with high recurrence in Sikkim with difference in the etiological agent from other parts of India. PMID- 29323070 TI - Is diabetes mellitus an important risk factor for the antibiotic resistance in extraintestinal pathogenic Escherichia coli? AB - Escherichia coli is a major cause of extraintestinal infections in all age group. However, the infection becomes more severe when patients have some underlying condition such as Diabetes Mellitus. The aim of the study was to determine whether diabetic mellitus may act as an important risk factor for the E. coli to express drug resistance property. This descriptive study was carried out in a multi-specialty tertiary care hospital. One hundred and twenty-seven E. coli isolates from diabetic patients, and one hundred seventy-three isolates from nondiabetic patients were studied. Possession drug resistance genes were determined by multiplex polymerase chain reaction (PCR). Phylogenetic analysis was performed by triplex PCR. Antibiotic sensitivity testing was performed by Kirby-Bauer disk diffusion method. Among the study isolates from Diabetic patients maximum numbers were from phylogroup B2 (42.5%) and D (33%) similarly in case of nondiabetic patients B2 (29%) and D (38%) were the most common phylogroup. Presence of drug resistance genes among the diabetic and nondiabetic patient's isolates were as followed extended-spectrum beta-lactamase (70% and 70.5%) AmpC (9.5% and 14.5%) and NDM-1 ( 7% and 4.5%) and by disk diffusion methods susceptibility pattern were meropenem (94% and 94%), imipenem (92% and 92%), amikacin (76% and 74%), and ampicillin/sulbactam (68% and 69%), respectively. The proportion of diabetic patients strains with the drug resistance characteristics were not significantly different from that seen in nondiabetic patients strains, which indicating that in a predisposed host additional or subtraction bacterial aids for drug resistance property are not a necessity. PMID- 29323071 TI - Scedosporium apiospermum, an emerging pathogen in India: Case series and review of literature. AB - Scedosporium apiospermum is a rare cause of infection but is increasingly being reported among immunocompromised individuals around the world. We report two cases of S. apiospermum, one of keratitis and the other of nasal polyp both from immunocompetent patients. The two cases were successfully treated with voriconazole. It is important to diagnose such infections as their antifungal susceptibility to amphotericin B is variable. PMID- 29323072 TI - Orofacial granulomatosis: A disease or a concealed warning.?? AB - Granulomatosis is any condition characterized by the formation of multiple nodules or granulomas in the soft tissues. Differential diagnosis for orofacial region includes a wide spectrum of diseases, but most of these lesions present histopathologically as noncaseating granulomas, giving a nonspecific depiction and leading to a diagnostic impasse. In the absence of any diagnosable entity, the disease is labelled as "orofacial granulomatosis". A nine-year-old girl child reported with recurrent gingival enlargement and persistent macrochelia which histopathologically presented as noncaseating granulomas. The disease was progressive raising the suspicion of being oral manifestation of a systemic disorder such as Sarcoidosis or Crohn's disease. This paper throws some light on this rare entity and reports rarer features of this disease, like eye involvement and staphylococcal mucositis in the case report. PMID- 29323073 TI - Myoepithelial carcinoma of the tongue- spindle cell morphology with high mitosis: A case report and review of literature. AB - Myoepithelial carcinomas represent <1% of salivary gland tumors. Tongue is a rare site of occurrence. We present a case of a 30 year old female with myoepithelial carcinoma seen over dorsum of tongue with predominantly spindle cell morphology with clear cytoplasm and mitotic count of 6-7/10 hpf. We need to differentiate it from a spindle cell squamous cell carcinoma which can be seen at this location, i.e., tongue. In our case, there was no connection of the tumor with overlying squamous epithelium. PMID- 29323074 TI - Small cell medullary thyroid carcinoma: A diagnostic dilemma. AB - Small cell variant of medullary thyroid carcinoma (MTC) is a rare variant. In the past, primary thyroid lymphomas were thought to be small cell MTC (SCMTC). However, with the advent of immunohistochemistry, it was realized that SCMTC is rare. Our patient presented with neck mass for 1 year with an outside laboratory report of neoplastic lesion. His serum calcitonin levels were normal, but serum carcinoembryonic antigen (CEA) levels were high. He underwent total thyroidectomy and was diagnosed to have small cell variant of MTC. Immunohistochemistry for AE1/AE3 and CEA were positive while calcitonin was negative. The patient underwent radiotherapy but developed metastasis 3 months later. Thus, SCMTC is a rare and aggressive variant of MTC. In the absence of raised serum calcitonin levels, raised serum CEA levels are helpful. It is necessary to identify this rare variant as it connotes a poor prognosis and should be treated aggressively. PMID- 29323075 TI - Bilateral lung metastases unveils an asymptomatic sacrococcygeal yolk sac tumor. AB - Sacrococcygeal yolk sac tumor is an uncommon pediatric neoplasm. It usually presents with intra-abdominal or gluteal pain and mass. At later stage, it disseminates to regional nodes and distant organs. We describe one such neoplasm in an 18-month-old male child who turned symptomatic with multiple bilateral lung metastases. The tumor produced the least deformity to his physique, to become detectable on routine inspection and clinical examination. Finally, a combined approach through clinical, radiological, pathological, and biochemical perspectives established the diagnosis. PMID- 29323076 TI - Familial biatrial cardiac myxoma with glandular elements: A Rare entity with review of literature. AB - Cardiac myxomas are benign neoplasm of the heart with an incidence of 0.3%. Glandular cardiac myxomas are very rare and accounts for less than 3% of all cardiac myxomas. Here, we report a case of familial glandular cardiac myxoma in a 35 year old male who complained of exertional dyspneoa and weakness of right side of body on clinical presentation. Associated features of Carney's complex were not present. Family history revealed presence of cardiac myxoma in younger brother and sister. Transthoracic echocardiography detected biatrial myxoma. Excision of both lesions was done under cardiopulmonary bypass. Histopathology confirmed myxoma with glandular elements. Postoperative course was uneventful. PMID- 29323077 TI - Epidermoid cyst of the renal pelvis masquerading as malignancy. AB - Epidermoid cyst of the renal pelvis is exceptionally rare. The histogenetic mechanism has not been well characterized. Herein, we report a case of intrarenal epidermoid cyst in a 62-year-old woman who had undergone left nephrolithotomy for a staghorn calculus. She was being followed up for bilateral renal cysts when a complex mass was noted arising from the lower pole of the left kidney. Renal ultrasound showed a small left kidney with a solid vascular echogenic mass. A laparoscopic radical nephrectomy was performed. Gross examination revealed a well circumscribed cystic mass with friable tan-yellow contents. Microscopically, a cystic structure lined by mature epidermis without atypia indicating epidermoid cyst was noted. The lesion appeared to be in continuity with the pelvicalyceal urothelium which displayed extensive squamous metaplasia. The patient is disease free and is doing well. Better clinical awareness of this benign entity and a preoperative biopsy may help preserve a kidney. PMID- 29323078 TI - Renal cell carcinoma with t(6,11): A case report and review of literature. AB - Renal cell carcinomas (RCCs) with t(6,11) are very rare tumours. Only a few cases have been reported so far. t(6,11) results in fusion of alpha gene and transcription factor EB (TFEB) gene resulting in the overexpression of TFEB. The specific light and immunohistochemical features help in the diagnosis of this rare type of tumor. We report a case of t(6,11) RCC in a 38-year-old female who was incidentally found to have a right renal mass. We present this case to emphasize the typical light microscopic picture of this extremely rare tumor. Two population of cells are seen: larger cells with abundant cytoplasm and smaller cells with scant cytoplasm. Smaller cells are arranged around hyaline nodules resulting in the formation of characteristic pseudorosettes. Immunohistochemically, these tumors are diffusely positive for vimentin and focally positive for HMB 45 and CD 117. Knowledge about the typical biphasic light microscopic appearance and the characteristic immunohistochemical features help in the diagnosis of this rare type of translocation associated RCC. PMID- 29323079 TI - Immunoglobulin G4-related tubulointerstitial nephritis: A not to be missed diagnosis. AB - Immunoglobulin G4-related tubulointerstitial nephritis (IgG4-TIN) is a newly recognized clinicopathological entity characterized by a dense interstitial infiltrate of IgG4-positive plasma cells accompanied by fibrosis and obliterative phlebitis causing acute or chronic renal dysfunction amenable to corticosteroid therapy. IgG4-TIN is the dominant manifestation of renal involvement in IgG4 related disease (IgG4-RD) which is a novel, immune-mediated, fibroinflammatory and multiorgan disorder. We describe a case of IgG4-TIN with isolated renal involvement in an elderly male patient with poor response to corticosteroid therapy. The distinctive serological, histopathological, and ultrastructural features of this condition which can facilitate differential diagnosis of TIN are highlighted to emphasize the need for early diagnosis and preservation of kidney function. PMID- 29323080 TI - Recurrent leiomyosarcoma scrotum: An important differential in scrotal masses. AB - Soft tissue sarcomas of the genitourinary tract are rare. Paratesticular sarcomas are extremely rare with majority of scrotal masses localizing to the testis and being neoplastic in nature. Paratesticular leiomyosarcomas (LMSs) are located in the spermatic cord, epididymis, or scrotum. However, their location in the scrotal skin or subcutaneous tissue is extremely rare. Only 10 cases have been reported from India previously. Ours is the 11th case. A 50-year-old male presented with a recurrent scrotal mass which was painless and gradually increasing in size. Histopathology and immunohistochemistry confirmed it to be paratesticular LMS. A rare case report with the review of literature is presented. PMID- 29323081 TI - Primary signet cell adenocarcinoma of bladder. AB - Primary signet cell cancer of the urinary bladder is a relatively rare entity. Since there is no mucinous epithelium in the bladder, It is proposed that the tumor arises from metaplastic urothelium. Two thirds of the tumours are mucin secreting, in most of which the site of the deposition is either extracellular or intracellular displacing the nucleus to a peripheral crescent, giving the cells a signet ring appearance. The tumours are most often infiltrative and diffusely involving the majority of the bladder akin to its name sake in stomach. It is essential to distinguish this carcinoma from gastrointestinal metastases as different therapeutic strategies are often necessary. PMID- 29323082 TI - Pyogenic liver abscess associated with oral flora bacterium, Streptococcus anginosus in a patient with underlying tuberculosis. AB - Streptococcus anginosus forms a part of the commensal flora of the oral cavity. However, it can be aggressive and may lead to gastrointestinal and urogenital infections. We present an interesting case and course in a 38-year-old immunocompetent female patient with pyogenic liver abscess due to S. anginosus infection who had multiple carious teeth and underlying pulmonary tuberculosis. PMID- 29323083 TI - Monoclonal gammopathy with double M-bands: An atypical presentation on serum protein electrophoresis simulating biclonal gammopathy. AB - Monoclonal gammopathies, such as multiple myeloma, typically exhibit high levels of a monoclonal immunoglobulin (M-protein), produced by a clone of abnormally proliferating B-lymphocytes and/or plasma cells. The M-protein can be evaluated by serum protein electrophoresis (SPEP), which yields a single discrete band (M band), usually in the gamma-globulin region. Rarely, two M-bands appear simultaneously at different positions during SPEP - a condition known as biclonal gammopathy, which is a result of clonal expansion of two different neoplastic cell lines. Here, we describe an atypical case of IgA-lambda multiple myeloma, where double M-bands (one in beta- and the other in gamma-globulin region) were found during SPEP simulating biclonal gammopathy, although it was monoclonal in nature. This peculiar presentation of double M-bands in monoclonal gammopathy was attributed to polymeric forms of IgA by systematic workup. Further, we discuss how true and apparent biclonality can be distinguished by inexpensive analytical techniques in resource-constrained settings. PMID- 29323084 TI - Fibroblast growth factor receptor-1 associated myeloproliferative neoplasm and T lymphoblastic lymphoma. AB - Myeloid and lymphoid hematological malignancies with eosinophilia and abnormalities of fibroblast growth factor receptor-1 (FGFR1) result from the formation of abnormal fusion genes that encode constitutively activated tyrosine kinases. The WHO classification (2008) of hematolymphoid neoplasms recognizes a category of myeloid and lymphoid neoplasms with eosinophilia and abnormalities of FGFR1. Here, we present the case of a 30-year-old-woman who was diagnosed with T lymphoblastic lymphoma from lymph node biopsy and myeloproliferative neoplasm with eosinophilia from bone marrow studies. She was treated with combination chemotherapy with cyclophosphamide, vincristine, doxorubicin, and dexamethasone (Hyper-CVAD regimen) and is on maintenance chemotherapy for the past 2 months. We present this case to create awareness among physicians about this rare condition associated with dual malignancies. PMID- 29323085 TI - CD19-negative B-lineage acute lymphoblastic leukemia: A diagnostic and therapeutic challenge. AB - B-lineage acute lymphoblastic leukemia (B-ALL) is an aggressive neoplasm of B lymphocyte precursors that express the pan B-cell marker CD19 in all the cases. Rarely, a case may be assigned as B-lineage even if CD19 is negative. Here, a 16 year-old male presented with complaints of pain abdomen, on and off fever, joint pain, and hepatosplenomegaly for 2 months. Bone marrow examination was suggestive of acute leukemia with numerous leukoblasts on aspiration. On flow cytometry, gated blast population was negative for CD19, cytoCD3, and myeloperoxidase MPO and positive for CD34, TdT, HLA-DR, CD22, CD79a, and CD10. Immunohistochemistry study showed positivity for TdT, CD34, CD10 (focal), and PAX 5 and negativity for CD20, CD3, MPO, CD117, and CD68. Lack of awareness of negative CD19 expression in B-ALL can lead to incorrect immunophenotypic diagnosis, treatment, and monitoring of B-ALL. Proper diagnosis should be based on clinical features, immunophenotypic profiles, immunohistochemistry findings, and molecular analysis. PMID- 29323086 TI - A rare case of Shewanella putrefaciens bacteremia in a patient of road traffic accident. AB - Shewanella putrefaciens rarely causes human infection. These are mostly found in environment and food stuffs. Shewanella are often found in mixed culture. It has been implicated in cellulitis, otitis media, and septicemia. It may be found in respiratory tract, urine, feces, and pleural fluid. There is no definite guideline for therapeutic option. In general, these are susceptible to various antimicrobial agents but are often resistant to penicillin and cephalothin. We report a rare case of bacteremia by S. putrefaciens in a patient of head injury with polytrauma after a road traffic accident. PMID- 29323087 TI - Opportunistic free: Living amoeba now becoming a usual pathogen? AB - Acanthamoeba species cause granulomatous Acanthamoeba encephalitis in immunocompromised patients. We report a case of acute purulent meningoencephalitis with a focal neurological deficit caused by Acanthamoeba species in a 2 years immunocompetent child. PMID- 29323088 TI - Salivary amylase crystalloids: An aspiration cytodiagnosis. PMID- 29323089 TI - Gliomatosis peritonei in mature cystic teratoma. PMID- 29323090 TI - Hepatic, splenic and thyroidal nodular sarcoidosis. PMID- 29323091 TI - Nerve sheath myxoma: Unusual location and a diagnostic pitfall. PMID- 29323092 TI - Addison's darling crisis. PMID- 29323093 TI - Urinary schistosomiasis: Schistosoma haematobium infection diagnosed by histopathology. PMID- 29323094 TI - Lepromatous leprosy-negative images giving the diagnostic clue. PMID- 29323095 TI - Intracytoplasmic inclusions in plasma cells: A diagnostic adjunct in monoclonal gammopathy of undetermined significance. PMID- 29323096 TI - Polypoid adenosarcoma of uterus with chondroid differentiation: A rare diagnosis. PMID- 29323097 TI - Balloon cell melanoma metastasis to the temporal lobe. PMID- 29323098 TI - An easy way of performing reticulocyte count by manual method. PMID- 29323099 TI - Leiomyosarcoma of parotid gland. PMID- 29323100 TI - Elizabethkingia meningoseptica peritonitis in continuous ambulatory peritoneal dialysis patient: A rare case report with diagnostic challenges. PMID- 29323101 TI - Actin Filament-Associated Protein 1-Like 1 Mediates Proliferation and Survival in Non-Small Cell Lung Cancer Cells. AB - BACKGROUND The actin filament-associated protein (AFAP) family consists of 3 novel adaptor proteins: AFAP1, AFAP1L1, and AFAP1L2/XB130. Although evidence shows that AFAP1 and AFAP1L2 play an oncogenic role, the effect of AFAP1L1 on tumor cell behavior has not been fully elucidated, and it remains unknown whether AFAP1L1 could be a prognostic marker and/or therapeutic target of lung cancer. MATERIAL AND METHODS Human A549 non-small cell lung cancer (NSCLC) cells were used in this study. AFAP1L1 gene was knocked down by AFAP1L1 short hairpin RNA (shRNA) transfection. Cell proliferation was analyzed using Celigo image cytometry and MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide] assay, cell cycle progression was assessed with flow cytometry, and cell apoptosis was determined by flow cytometry after annexin-n staining. The PathScan intracellular signaling array was used to investigate cancer-related signaling proteins influenced by knocking down AFAP1L1 in A549. RESULTS AFAP1L1 gene expression was successfully inhibited by the AFAP1L1-shRNA transfection. Cell proliferation was inhibited and cell proportions in G1 and G2/M phases were increased, and cell apoptosis was increased in the AFAP1L1-shRNA transfected cells as compared with negative control shRNA transfected cells. Using the PathScan intracellular signaling array, we found that downregulation of AFAP1L1 significantly activated P38 and caspase 3, and inhibited PRAS40 activation. CONCLUSIONS Our data show that AFAP1L1 promotes cell proliferation, accelerates cell cycle progression, and prevents cell apoptosis in lung cancer cells. Therefore, AFAP1L1 might play an oncogenic role in NSCLC. PMID- 29323102 TI - Propionibacterium acnes induces intervertebral disc degeneration by promoting nucleus pulposus cell apoptosis via the TLR2/JNK/mitochondrial-mediated pathway. AB - Evidence suggests that intervertebral disc degeneration (IVDD) can be induced by Propionibacterium acnes (P. acnes), although the underlying mechanisms are unclear. In this study, we analyzed the pathological changes in degenerated human intervertebral discs (IVDs) infected with P. acnes. Compared with P. acnes negative samples, P. acnes-positive IVDs showed increased apoptosis of nucleus pulposus cells (NPCs) concomitant with severe IVDD. Then, a P. acnes-inoculated IVD animal model was established, and severe IVDD was induced by P. acnes infection by promoting NPC apoptosis. The results suggested that P.acnes-induced apoptosis of NPCs via the Toll-like receptor 2 (TLR2)/c-Jun N-terminal kinase (JNK) pathway and mitochondrial-mediated cell death. In addition, P. acnes was found to activate autophagy, which likely plays a role in apoptosis of NPCs. Overall, these findings further validated the involvement of P. acnes in the pathology of IVDD and provided evidence that P. acnes-induced apoptosis of NPCs via the TLR2/JNK pathway is likely responsible for the pathology of IVDD. PMID- 29323103 TI - Oridonin exerts anticancer effect on osteosarcoma by activating PPAR-gamma and inhibiting Nrf2 pathway. AB - Osteosarcoma is the most common high-grade human primary malignant bone sarcoma with lower survival in the past decades. Oridonin, a bioactive diterpenoid isolated from Rabdosia rubescens, has been proved to possess potent anti-cancer effects. However, its potential mechanism still remains not fully clear nowadays. In this study, we investigated the anticancer effect of oridonin on human osteosarcoma and illuminated the underlying mechanisms. In vitro, oridonin inhibited the cell viability of various osteosarcoma cells. We demonstrated that oridonin induced mitochondrial-mediated apoptosis by increasing Bax/Bcl-2 ratio, loss of mitochondrial membrane potential (MMP), triggering reactive oxygen species (ROS) generation and activating caspase-3 and caspase-9 cleavage in MG-63 and HOS cells. Moreover, we found that oridonin triggered ROS by inhibiting NF-E2 related factor 2 (Nrf2) pathway and induced mitochondrial apoptosis via inhibiting nuclear factor-kappaB (NF-kappaB) activation by activating Peroxisome Proliferator-Activated Receptor gamma (PPAR-gamma) in MG-63 and HOS cells. We further confirmed the results by PPAR-gamma inhibitor GW9662, PPAR-gamma siRNA as well as overexpression of PPAR-gamma and Nrf2 in vitro. Furthermore, our in vivo study showed that oridonin inhibited tumor growth with high safety via inducing apoptosis through activating PPAR-gamma and inhibiting Nrf2 activation in xenograft model inoculated HOS tumor. Taken together, oridonin exerted a dramatic pro-apoptotic effect by activating PPAR-gamma and inhibiting Nrf2 pathway in vitro and in vivo. Therefore, oridonin may be a promising and effective agent for human osteosarcoma in the future clinical applications. PMID- 29323104 TI - The mechanism of glycosphingolipid degradation revealed by a GALC-SapA complex structure. AB - Sphingolipids are essential components of cellular membranes and defects in their synthesis or degradation cause severe human diseases. The efficient degradation of sphingolipids in the lysosome requires lipid-binding saposin proteins and hydrolytic enzymes. The glycosphingolipid galactocerebroside is the primary lipid component of the myelin sheath and is degraded by the hydrolase beta galactocerebrosidase (GALC). This enzyme requires the saposin SapA for lipid processing and defects in either of these proteins causes a severe neurodegenerative disorder, Krabbe disease. Here we present the structure of a glycosphingolipid-processing complex, revealing how SapA and GALC form a heterotetramer with an open channel connecting the enzyme active site to the SapA hydrophobic cavity. This structure defines how a soluble hydrolase can cleave the polar glycosyl headgroups of these essential lipids from their hydrophobic ceramide tails. Furthermore, the molecular details of this interaction provide an illustration for how specificity of saposin binding to hydrolases is encoded. PMID- 29323105 TI - Enterovirus D68 virus-like particles expressed in Pichia pastoris potently induce neutralizing antibody responses and confer protection against lethal viral infection in mice. AB - Enterovirus D68 (EV-D68) has been increasingly associated with severe respiratory illness and neurological complications in children worldwide. However, no vaccine is currently available to prevent EV-D68 infection. In the present study, we investigated the possibility of developing a virus-like particle (VLP)-based EV D68 vaccine. We found that co-expression of the P1 precursor and 3CD protease of EV-D68 in Pichia pastoris yeast resulted in the generation of EV-D68 VLPs, which were composed of processed VP0, VP1, and VP3 capsid proteins and were visualized as ~30 nm spherical particles. Mice immunized with these VLPs produced serum antibodies capable of specifically neutralizing EV-D68 infections in vitro. The in vivo protective efficacy of the EV-D68 VLP candidate vaccine was assessed in two challenge experiments. The first challenge experiment showed that neonatal mice born to the VLP-immunized dams were fully protected from lethal EV-D68 infection, whereas in the second experiment, passive transfer of anti-VLP sera was found to confer complete protection in the recipient mice. Collectively, these results demonstrate the proof-of-concept for VLP-based broadly effective EV D68 vaccines. PMID- 29323106 TI - Sequential forward and reverse transport of the Na+ Ca2+ exchanger generates Ca2+ oscillations within mitochondria. AB - Mitochondrial Ca2+ homoeostasis regulates aerobic metabolism and cell survival. Ca2+ flux into mitochondria is mediated by the mitochondrial calcium uniporter (MCU) channel whereas Ca2+ export is often through an electrogenic Na+-Ca2+ exchanger. Here, we report remarkable functional versatility in mitochondrial Na+ Ca2+ exchange under conditions where mitochondria are depolarised. Following physiological stimulation of cell-surface receptors, mitochondrial Na+-Ca2+ exchange initially operates in reverse mode, transporting cytosolic Ca2+ into the matrix. As matrix Ca2+ rises, the exchanger reverts to its forward mode state, extruding Ca2+. Transitions between reverse and forward modes generate repetitive oscillations in matrix Ca2+. We further show that reverse mode Na+-Ca2+ activity is regulated by the mitochondrial fusion protein mitofusin 2. Our results demonstrate that reversible switching between transport modes of an ion exchanger molecule generates functionally relevant oscillations in the levels of the universal Ca2+ messenger within an organelle. PMID- 29323107 TI - Serological survey of neutralizing antibodies to eight major enteroviruses among healthy population. AB - Human enteroviruses (EVs) are the most common causative agents infecting human, causing many harmful diseases, such as hand, foot, and mouth disease (HFMD), herpangina (HA), myocarditis, encephalitis, and aseptic meningitis. EV-related diseases pose a serious worldwide threat to public health. To gain comprehensive insight into the seroepidemiology of major prevalent EVs in humans, we firstly performed a serological survey for neutralizing antibodies (nAbs) against Enterovirus A71 (EV-A71), Coxsackie virus A16 (CV-A16), Coxsackie virus A6 (CV A6), Coxsackie virus A10 (CV-A10), Coxsackie virus B3 (CV-B3), Coxsackie virus B5 (CV-B5), Echovirus 25 (ECHO25), and Echovirus 30 (ECHO30) among the healthy population in Xiamen City in 2016, using micro-neutralization assay. A total of 515 subjects aged 5 months to 83 years were recruited by stratified random sampling. Most major human EVs are widely circulated in Xiamen City and usually infect infants and children. The overall seroprevalence of these eight EVs were ranged from 14.4% to 42.7%, and most of them increased with age and subsequently reached a plateau. The co-existence of nAbs against various EVs are common among people >= 7 years of age, due to the alternate infections or co-infections with different serotypes of EVs, while most children were negative for nAb against EVs, especially those < 1 year of age. This is the first report detailing the seroepidemiology of eight prevalent EVs in the same population, which provides scientific data supporting further studies on the improvement of EV-related disease prevention and control. PMID- 29323108 TI - Clinical study of tuberculosis in the head and neck region-11 years' experience and a review of the literature. AB - Tuberculosis (TB) is an infectious disease and major health concern. Head and neck tuberculosis (HNTB) is relatively rare, but can arise in many regions, including the lymph nodes, larynx, oral cavity and pharynx. We retrospectively reviewed the clinical records of 60 patients diagnosed with HNTB in our department between March 2005 and January 2016. A review and summary of previous HNTB articles published in PubMed since 1885 was also performed. The subjects consisted of 17 males and 43 females, and the average age of patients was 45 +/- 14.67 years. The major clinical presentation was a lump or swelling, followed by an oral ulcer and skin fistula. The most common site of tuberculosis was in the cervical lymph node. Three patients also suffered from a malignant tumor in the head and neck region. A total of 980 papers involving 5881 patients were included in our literature review. The included subjects ranged in age from 15 months to 100 years with a male-to-female ratio of 1.5:1. The larynx (38.92%), cervical lymph nodes (38.28%) and oral cavity (9.92%) were the three most common development sites. 465 patients were positive according to a HIV test, and 40 patients had comorbidities with different types of tumors. Head and neck tuberculosis should always be considered during a differential diagnosis for lesions in the head and neck region. Early diagnosis and treatment can greatly enhance the therapeutic effect and patients' quality of life. PMID- 29323109 TI - Quantum engine efficiency bound beyond the second law of thermodynamics. AB - According to the second law, the efficiency of cyclic heat engines is limited by the Carnot bound that is attained by engines that operate between two thermal baths under the reversibility condition whereby the total entropy does not increase. Quantum engines operating between a thermal and a squeezed-thermal bath have been shown to surpass this bound. Yet, their maximum efficiency cannot be determined by the reversibility condition, which may yield an unachievable efficiency bound above unity. Here we identify the fraction of the exchanged energy between a quantum system and a bath that necessarily causes an entropy change and derive an inequality for this change. This inequality reveals an efficiency bound for quantum engines energised by a non-thermal bath. This bound does not imply reversibility, unless the two baths are thermal. It cannot be solely deduced from the laws of thermodynamics. PMID- 29323111 TI - Author Correction: Rationalizing the light-induced phase separation of mixed halide organic-inorganic perovskites. AB - The original version of this Article contained an error in the spelling of the author Joseph S. Manser, which was incorrectly given as Joseph M. Manser. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29323110 TI - Free choice shapes normalized value signals in medial orbitofrontal cortex. AB - Normalization is a common cortical computation widely observed in sensory perception, but its importance in perception of reward value and decision making remains largely unknown. We examined (1) whether normalized value signals occur in the orbitofrontal cortex (OFC) and (2) whether changes in behavioral task context influence the normalized representation of value. We record medial OFC (mOFC) single neuron activity in awake-behaving monkeys during a reward-guided lottery task. mOFC neurons signal the relative values of options via a divisive normalization function when animals freely choose between alternatives. The normalization model, however, performed poorly in a variant of the task where only one of the two possible choice options yields a reward and the other was certain not to yield a reward (so called: "forced choice"). The existence of such context-specific value normalization may suggest that the mOFC contributes valuation signals critical for economic decision making when meaningful alternative options are available. PMID- 29323113 TI - MXene molecular sieving membranes for highly efficient gas separation. AB - Molecular sieving membranes with sufficient and uniform nanochannels that break the permeability-selectivity trade-off are desirable for energy-efficient gas separation, and the arising two-dimensional (2D) materials provide new routes for membrane development. However, for 2D lamellar membranes, disordered interlayer nanochannels for mass transport are usually formed between randomly stacked neighboring nanosheets, which is obstructive for highly efficient separation. Therefore, manufacturing lamellar membranes with highly ordered nanochannel structures for fast and precise molecular sieving is still challenging. Here, we report on lamellar stacked MXene membranes with aligned and regular subnanometer channels, taking advantage of the abundant surface-terminating groups on the MXene nanosheets, which exhibit excellent gas separation performance with H2 permeability >2200 Barrer and H2/CO2 selectivity >160, superior to the state-of the-art membranes. The results of molecular dynamics simulations quantitatively support the experiments, confirming the subnanometer interlayer spacing between the neighboring MXene nanosheets as molecular sieving channels for gas separation. PMID- 29323112 TI - Signaling ammonium across membranes through an ammonium sensor histidine kinase. AB - Sensing and uptake of external ammonium is essential for anaerobic ammonium oxidizing (anammox) bacteria, and is typically the domain of the ubiquitous Amt/Rh ammonium transporters. Here, we report on the structure and function of an ammonium sensor/transducer from the anammox bacterium "Candidatus Kuenenia stuttgartiensis" that combines a membrane-integral ammonium transporter domain with a fused histidine kinase. It contains a high-affinity ammonium binding site not present in assimilatory Amt proteins. The levels of phosphorylated histidine in the kinase are coupled to the presence of ammonium, as conformational changes during signal recognition by the Amt module are transduced internally to modulate the kinase activity. The structural analysis of this ammonium sensor by X-ray crystallography and small-angle X-ray-scattering reveals a flexible, bipartite system that recruits a large uptake transporter as a sensory module and modulates its functionality to achieve a mechanistic coupling to a kinase domain in order to trigger downstream signaling events. PMID- 29323114 TI - Publisher Correction: Causes of model dry and warm bias over central U.S. and impact on climate projections. AB - The original version of this Article contained an error in Figure 2. In panel a, the x axis of the graph was incorrectly labeled 'precipitation bias', and should have read 'negative precipitation bias'. This error has been corrected in both the PDF and HTML versions of the Article. PMID- 29323115 TI - Wet-dry cycles enable the parallel origin of canonical and non-canonical nucleosides by continuous synthesis. AB - The molecules of life were created by a continuous physicochemical process on an early Earth. In this hadean environment, chemical transformations were driven by fluctuations of the naturally given physical parameters established for example by wet-dry cycles. These conditions might have allowed for the formation of (self)-replicating RNA as the fundamental biopolymer during chemical evolution. The question of how a complex multistep chemical synthesis of RNA building blocks was possible in such an environment remains unanswered. Here we report that geothermal fields could provide the right setup for establishing wet-dry cycles that allow for the synthesis of RNA nucleosides by continuous synthesis. Our model provides both the canonical and many ubiquitous non-canonical purine nucleosides in parallel by simple changes of physical parameters such as temperature, pH and concentration. The data show that modified nucleosides were potentially formed as competitor molecules. They could in this sense be considered as molecular fossils. PMID- 29323116 TI - Impact on short-lived climate forcers increases projected warming due to deforestation. AB - The climate impact of deforestation depends on the relative strength of several biogeochemical and biogeophysical effects. In addition to affecting the exchange of carbon dioxide (CO2) and moisture with the atmosphere and surface albedo, vegetation emits biogenic volatile organic compounds (BVOCs) that alter the formation of short-lived climate forcers (SLCFs), which include aerosol, ozone and methane. Here we show that a scenario of complete global deforestation results in a net positive radiative forcing (RF; 0.12 W m-2) from SLCFs, with the negative RF from decreases in ozone and methane concentrations partially offsetting the positive aerosol RF. Combining RFs due to CO2, surface albedo and SLCFs suggests that global deforestation could cause 0.8 K warming after 100 years, with SLCFs contributing 8% of the effect. However, deforestation as projected by the RCP8.5 scenario leads to zero net RF from SLCF, primarily due to nonlinearities in the aerosol indirect effect. PMID- 29323118 TI - Effects of crystallographic and geometric orientation on ion beam sputtering of gold nanorods. AB - Nanostructures may be exposed to irradiation during their manufacture, their engineering and whilst in-service. The consequences of such bombardment can be vastly different from those seen in the bulk. In this paper, we combine transmission electron microscopy with in situ ion irradiation with complementary computer modelling techniques to explore the physics governing the effects of 1.7 MeV Au ions on gold nanorods. Phenomena surrounding the sputtering and associated morphological changes caused by the ion irradiation have been explored. In both the experiments and the simulations, large variations in the sputter yields from individual nanorods were observed. These sputter yields have been shown to correlate with the strength of channelling directions close to the direction in which the ion beam was incident. Craters decorated by ejecta blankets were found to form due to cluster emission thus explaining the high sputter yields. PMID- 29323120 TI - Solving the mystery of the yellow zone of the asthma action plan. PMID- 29323119 TI - CUG initiation and frameshifting enable production of dipeptide repeat proteins from ALS/FTD C9ORF72 transcripts. AB - Expansion of G4C2 repeats in the C9ORF72 gene is the most prevalent inherited form of amyotrophic lateral sclerosis and frontotemporal dementia. Expanded transcripts undergo repeat-associated non-AUG (RAN) translation producing dipeptide repeat proteins from all reading frames. We determined cis-factors and trans-factors influencing translation of the human C9ORF72 transcripts. G4C2 translation operates through a 5'-3' cap-dependent scanning mechanism, requiring a CUG codon located upstream of the repeats and an initiator Met-tRNAMeti. Production of poly-GA, poly-GP, and poly-GR proteins from the three frames is influenced by mutation of the same CUG start codon supporting a frameshifting mechanism. RAN translation is also regulated by an upstream open reading frame (uORF) present in mis-spliced C9ORF72 transcripts. Inhibitors of the pre initiation ribosomal complex and RNA antisense oligonucleotides selectively targeting the 5'-flanking G4C2 sequence block ribosomal scanning and prevent translation. Finally, we identified an unexpected affinity of expanded transcripts for the ribosomal subunits independently from translation. PMID- 29323117 TI - Impaired autophagy bridges lysosomal storage disease and epithelial dysfunction in the kidney. AB - The endolysosomal system sustains the reabsorptive activity of specialized epithelial cells. Lysosomal storage diseases such as nephropathic cystinosis cause a major dysfunction of epithelial cells lining the kidney tubule, resulting in massive losses of vital solutes in the urine. The mechanisms linking lysosomal defects and epithelial dysfunction remain unknown, preventing the development of disease-modifying therapies. Here we demonstrate, by combining genetic and pharmacologic approaches, that lysosomal dysfunction in cystinosis results in defective autophagy-mediated clearance of damaged mitochondria. This promotes the generation of oxidative stress that stimulates Galpha12/Src-mediated phosphorylation of tight junction ZO-1 and triggers a signaling cascade involving ZO-1-associated Y-box factor ZONAB, which leads to cell proliferation and transport defects. Correction of the primary lysosomal defect, neutralization of mitochondrial oxidative stress, and blockage of tight junction-associated ZONAB signaling rescue the epithelial function. We suggest a link between defective lysosome-autophagy degradation pathways and epithelial dysfunction, providing new therapeutic perspectives for lysosomal storage disorders. PMID- 29323121 TI - The Endogenous GRP78 Interactome in Human Head and Neck Cancers: A Deterministic Role of Cell Surface GRP78 in Cancer Stemness. AB - Cell surface glucose regulated protein 78 (GRP78), an endoplasmic reticulum (ER) chaperone, was suggested to be a cancer stem cell marker, but the influence of this molecule on cancer stemness is poorly characterized. In this study, we developed a mass spectrometry platform to detect the endogenous interactome of GRP78 and investigated its role in cancer stemness. The interactome results showed that cell surface GRP78 associates with multiple molecules. The influence of cell population heterogeneity of head and neck cancer cell lines (OECM1, FaDu, and BM2) according to the cell surface expression levels of GRP78 and the GRP78 interactome protein, Progranulin, was investigated. The four sorted cell groups exhibited distinct cell cycle distributions, asymmetric/symmetric cell divisions, and different relative expression levels of stemness markers. Our results demonstrate that cell surface GRP78 promotes cancer stemness, whereas drives cells toward a non-stemlike phenotype when it chaperones Progranulin. We conclude that cell surface GRP78 is a chaperone exerting a deterministic influence on cancer stemness. PMID- 29323123 TI - Publisher Correction: Imaging spectroscopy of solar radio burst fine structures. AB - The original version of this article contained errors in Refs 15, 27, 32, 33 and 43, which were incorrectly given with the wrong journal name "Solid Phys." rather than the correct "Sol. Phys.". This has now been corrected in the PDF and HTML versions of the article. PMID- 29323125 TI - Author Correction: Hot carrier cooling mechanisms in halide perovskites. AB - The original version of this Article omitted an affiliation of Cheng Hon Alfred Huan: 'Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, Innovis #08-03 138634, Singapore'.This has now been corrected in both the PDF and HTML versions of the article. PMID- 29323124 TI - MiR-770 suppresses the chemo-resistance and metastasis of triple negative breast cancer via direct targeting of STMN1. AB - Chemo-resistance and metastasis of triple negative breast cancer (TNBC) contributed the most of treatment failure in the clinic. MicroRNAs (miRNAs) have been proved to be involved in many biological processes and diseases. In this study, we aimed to determine the role of miR-770 in the regulation of chemo resistance and metastasis of TNBC. Clinically, miR-770 was highly expressed in chemo-sensitive tissues and predicted a better prognosis of TNBC. Functionally, ectopic expression of miR-770 suppressed the doxorubicin-resistance of TNBC cell lines via regulation of apoptosis and tumor microenvironment, which was mediated by exosomes. Moreover, miR-770 overexpression inhibited the migration and invasion. Rescue of STMN1 could partly reverse the effect of miR-770 in TNBC behaviors. Furthermore, we also demonstrated that overexpression of miR-770 inhibited DOX resistance and metastasis in vivo. Taken together, our results proved that miR-770 could suppress the doxorubicin-resistance and metastasis of TNBC cells, which broaden our insights into the underlying mechanisms in chemo resistance and metastasis, and provided a new prognostic marker for TNBC cells. PMID- 29323126 TI - Discovery of superconductivity in quasicrystal. AB - Superconductivity is ubiquitous as evidenced by the observation in many crystals including carrier-doped oxides and diamond. Amorphous solids are no exception. However, it remains to be discovered in quasicrystals, in which atoms are ordered over long distances but not in a periodically repeating arrangement. Here we report electrical resistivity, magnetization, and specific-heat measurements of Al-Zn-Mg quasicrystal, presenting convincing evidence for the emergence of bulk superconductivity at a very low transition temperature of [Formula: see text] K. We also find superconductivity in its approximant crystals, structures that are periodic, but that are very similar to quasicrystals. These observations demonstrate that the effective interaction between electrons remains attractive under variation of the atomic arrangement from periodic to quasiperiodic one. The discovery of the superconducting quasicrystal, in which the fractal geometry interplays with superconductivity, opens the door to a new type of superconductivity, fractal superconductivity. PMID- 29323122 TI - Effect of rhythmic auditory cueing on parkinsonian gait: A systematic review and meta-analysis. AB - The use of rhythmic auditory cueing to enhance gait performance in parkinsonian patients' is an emerging area of interest. Different theories and underlying neurophysiological mechanisms have been suggested for ascertaining the enhancement in motor performance. However, a consensus as to its effects based on characteristics of effective stimuli, and training dosage is still not reached. A systematic review and meta-analysis was carried out to analyze the effects of different auditory feedbacks on gait and postural performance in patients affected by Parkinson's disease. Systematic identification of published literature was performed adhering to PRISMA guidelines, from inception until May 2017, on online databases; Web of science, PEDro, EBSCO, MEDLINE, Cochrane, EMBASE and PROQUEST. Of 4204 records, 50 studies, involving 1892 participants met our inclusion criteria. The analysis revealed an overall positive effect on gait velocity, stride length, and a negative effect on cadence with application of auditory cueing. Neurophysiological mechanisms, training dosage, effects of higher information processing constraints, and use of cueing as an adjunct with medications are thoroughly discussed. This present review bridges the gaps in literature by suggesting application of rhythmic auditory cueing in conventional rehabilitation approaches to enhance motor performance and quality of life in the parkinsonian community. PMID- 29323128 TI - Majorana zero modes and long range edge correlation in interacting Kitaev chains: analytic solutions and density-matrix-renormalization-group study. AB - We study Kitaev model in one-dimension with open boundary condition by using exact analytic methods for non-interacting system at zero chemical potential as well as in the symmetric case of Delta = t, and by using density-matrix renormalization-group method for interacting system with nearest neighbor repulsion interaction. We suggest and examine an edge correlation function of Majorana fermions to characterize the long range order in the topological superconducting states and study the phase diagram of the interating Kitaev chain. PMID- 29323127 TI - Differential proteomics of lesional vs. non-lesional biopsies revealed non-immune mechanisms of alopecia areata. AB - Alopecia areata (AA) is one of the common hair disorders for which treatment is frequently ineffective and associated with relapsing episodes. Better understanding of disease mechanisms and novel therapeutic targets are thus required. From 10 AA patients, quantitative proteomics using LTQ-Orbitrap-XL mass spectrometer revealed 104 down-regulated, 4 absent, 3 up-regulated and 11 newly present proteins in lesional vs. non-lesional biopsies. Among these, the decreased levels of alpha-tubulin, vimentin, heat shock protein 70 (HSP70), HSP90, annexin A2 and alpha-enolase were successfully confirmed by Western blotting. Protein-protein interactions network analysis using STRING tool revealed that the most frequent biological processes/networks of the down regulated proteins included tissue development, cell differentiation, response to wounding and catabolic process, whereas those for the up-regulated proteins included biological process, metabolic process, cellular transport, cellular component organization and response to stimulus. Interestingly, only 5 increased/newly present proteins were associated with the regulation of immune system, which may not be the predominant pathway in AA pathogenic mechanisms as previously assumed. In summary, we report herein the first proteome dataset of AA demonstrating a number of novel pathways, which can be linked to the disease mechanisms and may lead to discovery of new therapeutic targets for AA. PMID- 29323129 TI - Comparison of Adaptation between the Major Connectors Fabricated from Intraoral Digital Impressions and Extraoral Digital Impressions. AB - The objective was to compare the adaptation between the major connectors of removable partial dentures derived from intraoral digital impressions and extraoral digital impressions. Twenty-four volunteers were enrolled. Each volunteer received an intraoral digital impression and one extraoral digital impression digitized from conventional gypsum impression. A software was used to create the major connectors on digital impression datasets. After all the virtual major connectors designed from Group intraoral digital impressions (Group I) and Group extraoral digital impressions (Group E) were directly fabricated by 3D printing technique, the adaptation of the final major connectors in volunteers' mouths were measured. The adaptation ranged from 159.87 to 577.99 MUm in Group I while from 120.83 to 536.17 MUm in Group E. The adaptation of major connectors in Group I were found better at the midline palatine suture while the adaptation of major connectors in Group E were found better at the two sides of the palatal vault. In both groups, the highest accuracy in adaptation was revealed at the anterior margin of the major connectors. It is feasible to manufacture the major connectors by digital impression and 3D printing technique. Both the adaptation of the two kinds of digital impressions were clinical acceptable. PMID- 29323131 TI - Optimal swimming strategies and behavioral plasticity of oceanic whitetip sharks. AB - Animal behavior should optimize the difference between the energy they gain from prey and the energy they spend searching for prey. This is all the more critical for predators occupying the pelagic environment, as prey is sparse and patchily distributed. We theoretically derive two canonical swimming strategies for pelagic predators, that maximize their energy surplus while foraging. They predict that while searching, a pelagic predator should maintain small dive angles, swim at speeds near those that minimize the cost of transport, and maintain constant speed throughout the dive. Using biologging sensors, we show that oceanic whitetip shark (Carcharhinus longimanus) behavior matches these predictions. We estimate that daily energy requirements of an adult shark can be met by consuming approximately 1-1.5 kg of prey (1.5% body mass) per day; shark borne video footage shows a shark encountering potential prey numbers exceeding that amount. Oceanic whitetip sharks showed incredible plasticity in their behavioral strategies, ranging from short low-energy bursts on descents, to high speed vertical surface breaches from considerable depth. Oceanic whitetips live a life of energy speculation with minimization, very different to those of tunas and billfish. PMID- 29323130 TI - In vivo effect of opticin deficiency in cartilage in a surgically induced mouse model of osteoarthritis. AB - The SLRP opticin (OPTC) has been demonstrated to be produced and degraded in osteoarthritic (OA) human cartilage. Here, we investigated the in vivo effect of OPTC deficiency in OA cartilage. OA was induced in 10-week-old Optc -/- and Optc +/+ mice. Ten weeks post-surgery, cartilage was processed for histology and immunohistochemistry. SLRP expression was determined in non-operated mouse cartilage. OA Optc -/- demonstrated significant protection against cartilage degradation. Data revealed that in non-operated Optc -/- cartilage, expression of SLRPs lumican and epiphycan was up-regulated at day 3 and in 10-week-olds (p <= 0.039), and fibromodulin down-regulated in 10-week-olds (p = 0.001). Immunohistochemistry of OA mice showed a similar pattern. In OA Optc -/- cartilage, markers of degradation and complement factors were all down-regulated (p <= 0.038). In OA Optc -/- cartilage, collagen fibers were thinner and better organized (p = 0.038) than in OA Optc +/+ cartilage. The protective effect of OPTC deficiency during OA results from an overexpression of lumican and epiphycan, known to bind and protect collagen fibers, and a decrease in fibromodulin, contributing to a reduction in the complement activation/inflammatory process. This work suggests that the evaluation of the composition of the different SLRPs in OA cartilage could be applied as a new tool for OA prognosis classification. PMID- 29323132 TI - Assembly of an atypical alpha-macroglobulin complex from Pseudomonas aeruginosa. AB - Alpha-2-macroglobulins (A2Ms) are large spectrum protease inhibitors that are major components of the eukaryotic immune system. Pathogenic and colonizing bacteria, such as the opportunistic pathogen Pseudomonas aeruginosa, also carry structural homologs of eukaryotic A2Ms. Two types of bacterial A2Ms have been identified: Type I, much like the eukaryotic form, displays a conserved thioester that is essential for protease targeting, and Type II, which lacks the thioester and to date has been poorly studied despite its ubiquitous presence in Gram negatives. Here we show that MagD, the Type II A2M from P. aeruginosa that is expressed within the six-gene mag operon, specifically traps a target protease despite the absence of the thioester motif, comforting its role in protease inhibition. In addition, analytical ultracentrifugation and small angle scattering show that MagD forms higher order complexes with proteins expressed in the same operon (MagA, MagB, and MagF), with MagB playing the key stabilization role. A P. aeruginosa strain lacking magB cannot stably maintain MagD in the bacterial periplasm, engendering complex disruption. This suggests a regulated mechanism of Mag complex formation and stabilization that is potentially common to numerous Gram-negative organisms, and that plays a role in periplasm protection from proteases during infection or colonization. PMID- 29323133 TI - The effect of image position on the Independent Components of natural binocular images. AB - Human visual performance degrades substantially as the angular distance from the fovea increases. This decrease in performance is found for both binocular and monocular vision. Although analysis of the statistics of natural images has provided significant insights into human visual processing, little research has focused on the statistical content of binocular images at eccentric angles. We applied Independent Component Analysis to rectangular image patches cut from locations within binocular images corresponding to different degrees of eccentricity. The distribution of components learned from the varying locations was examined to determine how these distributions varied across eccentricity. We found a general trend towards a broader spread of horizontal and vertical position disparity tunings in eccentric regions compared to the fovea, with the horizontal spread more pronounced than the vertical spread. Eccentric locations above the centroid show a strong bias towards far-tuned components, eccentric locations below the centroid show a strong bias towards near-tuned components. These distributions exhibit substantial similarities with physiological measurements in V1, however in common with previous research we also observe important differences, in particular distributions of binocular phase disparity which do not match physiology. PMID- 29323134 TI - Theoretical prediction of a charge-transfer phase transition. AB - Phase transition materials are attractive from the viewpoints of basic science as well as practical applications. For example, optical phase transition materials are used for optical recording media. If a phase transition in condensed matter could be predicted or designed prior to synthesizing, the development of phase transition materials will be accelerated. Herein we show a logical strategy for designing a phase transition accompanying a thermal hysteresis loop. Combining first-principles phonon mode calculations and statistical thermodynamic calculations considering cooperative interaction predicts a charge-transfer phase transition between the A-B and A+-B- phases. As an example, we demonstrate the charge-transfer phase transition on rubidium manganese hexacyanoferrate. The predicted phase transition temperature and the thermal hysteresis loop agree well with the experimental results. This approach will contribute to the rapid development of yet undiscovered phase transition materials. PMID- 29323135 TI - Peptide-based coatings for flexible implantable neural interfaces. AB - In the last decade, the use of flexible biosensors for neuroprosthetic and translational applications has widely increased. Among them, the polyimide (PI) based thin-film electrodes got a large popularity. However, the usability of these devices is still hampered by a non-optimal tissue-device interface that usually compromises the long-term quality of neural signals. Advanced strategies able to improve the surface properties of these devices have been developed in the recent past. Unfortunately, most of them are not easy to be developed and combined with micro-fabrication processes, and require long-term efforts to be testable with human subjects. Here we show the results of the design and in vitro testing of an easy-to-implement and potentially interesting coating approach for thin-film electrodes. In particular, two biocompatible coatings were obtained via covalent conjugation of a laminin-derived peptide, CAS-IKVAV-S (IKV), with polyimide sheets that we previously functionalized with vinyl- and amino- groups (PI_v and PI_a respectively). Both the engineered coatings (PI_v+IKV and PI_a+IKV) showed morphological and chemical properties able to support neuronal adhesion, neurite sprouting, and peripheral glial cell viability while reducing the fibroblasts contamination of the substrate. In particular, PI_v+IKV showed promising results that encourage further in vivo investigation and pave the way for a new generation of peptide-coated thin-film electrodes. PMID- 29323136 TI - Magnetically induced transparency of a quantum metamaterial composed of twin flux qubits. AB - Quantum theory is expected to govern the electromagnetic properties of a quantum metamaterial, an artificially fabricated medium composed of many quantum objects acting as artificial atoms. Propagation of electromagnetic waves through such a medium is accompanied by excitations of intrinsic quantum transitions within individual meta-atoms and modes corresponding to the interactions between them. Here we demonstrate an experiment in which an array of double-loop type superconducting flux qubits is embedded into a microwave transmission line. We observe that in a broad frequency range the transmission coefficient through the metamaterial periodically depends on externally applied magnetic field. Field controlled switching of the ground state of the meta-atoms induces a large suppression of the transmission. Moreover, the excitation of meta-atoms in the array leads to a large resonant enhancement of the transmission. We anticipate possible applications of the observed frequency-tunable transparency in superconducting quantum networks. PMID- 29323137 TI - Issues with the Specificity of Immunological Reagents for NLRP3: Implications for Age-related Macular Degeneration. AB - Contradictory data have been presented regarding the implication of the NACHT, LRR and PYD domains-containing protein 3 (NLRP3) inflammasome in age-related macular degeneration (AMD), the leading cause of vision loss in the Western world. Recognizing that antibody specificity may explain this discrepancy and in line with recent National Institutes of Health (NIH) guidelines requiring authentication of key biological resources, the specificity of anti-NLRP3 antibodies was assessed to elucidate whether non-immune RPE cells express NLRP3. Using validated resources, NLRP3 was not detected in human primary or human established RPE cell lines under multiple inflammasome-priming conditions, including purported NLRP3 stimuli in RPE such as DICER1 deletion and Alu RNA transfection. Furthermore, NLRP3 was below detection limits in ex vivo macular RPE from AMD patients, as well as in human induced pluripotent stem cell (hiPSC) derived RPE from patients with overactive NLRP3 syndrome (Chronic infantile neurologic cutaneous and articulate, CINCA syndrome). Evidence presented in this study provides new data regarding the interpretation of published results reporting NLRP3 expression and upregulation in RPE and addresses the role that this inflammasome plays in AMD pathogenesis. PMID- 29323138 TI - Whole-Mount Adult Ear Skin Imaging Reveals Defective Neuro-Vascular Branching Morphogenesis in Obese and Type 2 Diabetic Mouse Models. AB - Obesity and type 2 diabetes are frequently associated with peripheral neuropathy. Though there are multiple methods for diagnosis and analysis of morphological changes of peripheral nerves and blood vessels, three-dimensional high-resolution imaging is necessary to appreciate the pathogenesis with an anatomically recognizable branching morphogenesis and patterning. Here we established a novel technique for whole-mount imaging of adult mouse ear skin to visualize branching morphogenesis and patterning of peripheral nerves and blood vessels. Whole-mount immunostaining of adult mouse ear skin showed that peripheral sensory and sympathetic nerves align with large-diameter blood vessels. Diet-induced obesity (DIO) mice exhibit defective vascular smooth muscle cells (VSMCs) coverage, while there is no significant change in the amount of peripheral nerves. The leptin receptor-deficient db/db mice, a severe obese and type 2 diabetic mouse model, exhibit defective VSMC coverage and a large increase in the amount of smaller diameter nerve bundles with myelin sheath and unmyelinated nerve fibers. Interestingly, an increase in the amount of myeloid immune cells was observed in the DIO but not db/db mouse skin. These data suggest that our whole-mount imaging method enables us to investigate the neuro-vascular and neuro-immune phenotypes in the animal models of obesity and diabetes. PMID- 29323139 TI - Reverse micelle Extraction of Antibiotics using an Eco-friendly Sophorolipids Biosurfactant. AB - Reverse micelles extraction of erythromycin and amoxicillin were carried out using the novel Sophorolipids biosurfactant. By replacing commonly used chemical surfactants with biosurfactant, reverse micelle extraction can be further improved in terms of environmental friendliness and sustainability. A central composite experimental design was used to investigate the effects of solution pH, KCl concentration, and sophorolipids concentration on the reverse micelle extraction of antibiotics. The most significant factor identified during the reverse micelle extraction of both antibiotics is the pH of aqueous solutions. Best forward extraction performance for erythromycin was found at feed phase pH of approximately 8.0 with low KCl and sophorolipids concentrations. Optimum recovery of erythromycin was obtained at stripping phase pH around 10.0 and with low KCl concentration. On the other hand, best forward extraction performance for amoxicillin was found at feed phase pH around 3.5 with low KCl concentration and high sophorolipids concentration. Optimum recovery of erythromycin was obtained at stripping phase pH around 6.0 with low KCl concentration. Both erythromycin and amoxicillin were found to be very sensitive toaqueous phase pH and can be easily degraded outside of their stable pH ranges. PMID- 29323142 TI - An application of machine learning to haematological diagnosis. AB - Quick and accurate medical diagnoses are crucial for the successful treatment of diseases. Using machine learning algorithms and based on laboratory blood test results, we have built two models to predict a haematologic disease. One predictive model used all the available blood test parameters and the other used only a reduced set that is usually measured upon patient admittance. Both models produced good results, obtaining prediction accuracies of 0.88 and 0.86 when considering the list of five most likely diseases and 0.59 and 0.57 when considering only the most likely disease. The models did not differ significantly, which indicates that a reduced set of parameters can represent a relevant "fingerprint" of a disease. This knowledge expands the model's utility for use by general practitioners and indicates that blood test results contain more information than physicians generally recognize. A clinical test showed that the accuracy of our predictive models was on par with that of haematology specialists. Our study is the first to show that a machine learning predictive model based on blood tests alone can be successfully applied to predict haematologic diseases. This result and could open up unprecedented possibilities for medical diagnosis. PMID- 29323140 TI - Loss of A20 in BM-MSCs regulates the Th17/Treg balance in Rheumatoid Arthritis. AB - Mesenchymal stem cells (MSCs) are multi-potent cells that are self-renewable and possess the potential to differentiate into multiple lineages. Several studies demonstrated that MSCs could regulate a Th17/Treg balance and could be a potential therapeutic target for Rheumatoid Arthritis (RA). A20 is highly expressed in many cell types after the stimulation of TNF-alpha, where it may inhibit pro-inflammatory cytokine secretion. However, the expression of A20 in BM MSCs in RA is not fully understood. In our study, we found that A20 was decreased in RA patients' bone marrow MSCs (BM-MSCs), and with more IL-6 secretion, the balance of Th17/Treg was broken. In CIA mice, we found a moderate A20 decrease in mice MSCs as compared with those of control group in mRNA and protein levels. However, the IL-6 expression was increased. After umbilical cord MSCs treatment, A20 and IL-6 expressions were equal to the control group. Thus, our study indicates that loss of A20 in MSCs regulates the Th17/Treg balance in RA and the regulatory role of A20 in pro-inflammatory IL-6 production could be a potential target for the transfer of MSCs in RA adoptive therapy. PMID- 29323141 TI - Comparison Long-term Outcome of Definitive Radiotherapy plus Different Chemotherapy Schedules in Patients with Advanced Nasopharyngeal Carcinoma. AB - Concurrent chemoradiotherapy (CCRT) is the current standard of care for advanced nasopharyngeal carcinoma (NPC). We hypothesize that shifting CCRT to neoadjuvant chemotherapy followed by radiotherapy (NeoCT-RT) is an alternative option. From December 2004 to January 2009, 256 NPC patients with stage II-IVB were treated by either CCRT or NeoCT-RT. All patients received the same dosage and fractionation schedule of RT. After long-term follow-up, 26.8% (34/127) and 23.3% (30/129) of patients who received CCRT and NeoCT-RT respectively, developed a tumor relapse (P = 0.6134). Overall survival (HR = 1.52, 95%CI = 0.91-2.55, P = 0.1532) and progression-free survival (HR = 1.22, 95%CI = 0.75-1.99, P = 0.4215) were similar in both groups. However, acute toxicities during RT period revealed a significant reduction of grade 3/4 vomiting (23% vs. 0%, P < 0.0001), mucositis (55% vs. 16%, P < 0.0001), and neck dermatitis (31% vs. 16%, P = 0.0041) in the NeoCT-RT group, resulting in fewer emergency room visits (10.2% vs. 1.6%, P = 0.0071). Severe treatment-related late toxicity (15% vs. 14%, P = 0.9590) and the occurrence of second malignancy (3.9% vs. 5.4%, P = 0.7887) also showed no differences. We concluded that NeoCT-RT could be an attractive alternative option of CCRT for advanced NPC. PMID- 29323144 TI - Defining tissue proteomes by systematic literature review. AB - Defining protein composition is a key step in understanding the function of both healthy and diseased biological systems. There is currently little consensus between existing published proteomes in tissues such as the aorta, cartilage and organs such as skin. Lack of agreement as to both the number and identity of proteins may be due to issues in protein extraction, sensitivity/specificity of detection and the use of disparate tissue/cell sources. Here, we developed a method combining bioinformatics and systematic review to screen >32M articles from the Web of Science for evidence of proteins in healthy human skin. The resulting Manchester Proteome ( www.manchesterproteome.manchester.ac.uk ) collates existing evidence which characterises 2,948 skin proteins, 437 unique to our database and 2011 evidenced by both mass spectrometry and immune-based techniques. This approach circumvents the limitations of individual proteomics studies and can be applied to other species, organs, cells or disease-states. Accurate tissue proteomes will aid development of engineered constructs and offer insight into disease treatments by highlighting differences in proteomic composition. PMID- 29323143 TI - Optimizing human Treg immunotherapy by Treg subset selection and E-selectin ligand expression. AB - While human Tregs hold immense promise for immunotherapy, their biologic variability poses challenges for clinical use. Here, we examined clinically relevant activities of defined subsets of freshly-isolated and culture-expanded human PBMC-derived Tregs. Unlike highly suppressive but plastic memory Tregs (memTreg), naive Tregs (nvTreg) exhibited the greatest proliferation, suppressive capacity after stimulation, and Treg lineage fidelity. Yet, unlike memTregs, nvTregs lack Fucosyltransferase VII and display low sLeX expression, with concomitant poor homing capacity. In vitro nvTreg expansion augmented their suppressive function, but did not alter the nvTreg sLeX-l degrees w glycome. However, exofucosylation of the nvTreg surface yielded high sLeX expression, promoting endothelial adhesion and enhanced inhibition of xenogeneic aGVHD. These data indicate that the immature Treg glycome is under unique regulation and that adult PBMCs can be an ideal source of autologous-derived therapeutic Tregs, provided that subset selection and glycan engineering are engaged to optimize both their immunomodulation and tropism for inflammatory sites. PMID- 29323145 TI - Xyloglucan Fucosylation Modulates Arabidopsis Cell Wall Hemicellulose Aluminium binding Capacity. AB - Although xyloglucan (XyG) is reported to bind Aluminium (Al), the influence of XyG fucosylation on the cell wall Al binding capacity and plant Al stress responses is unclear. We show that Arabidopsis T-DNA insertion mutants with reduced AXY3 (XYLOSIDASE1) function and consequent reduced levels of fucosylated XyG are more sensitive to Al than wild-type Col-0 (WT). In contrast, T-DNA insertion mutants with reduced AXY8 (FUC95A) function and consequent increased levels of fucosylated XyG are more Al resistant. AXY3 transcript levels are strongly down regulated in response to 30 min Al treatment, whilst AXY8 transcript levels also repressed until 6 h following treatment onset. Mutants lacking AXY3 or AXY8 function exhibit opposing effects on Al contents of root cell wall and cell wall hemicellulose components. However, there was no difference in the amount of Al retained in the pectin components between mutants and WT. Finally, whilst the total sugar content of the hemicellulose fraction did not change, the altered hemicellulose Al content of the mutants is shown to be a likely consequence of their different XyG fucosylation levels. We conclude that variation in XyG fucosylation levels influences the Al sensitivity of Arabidopsis by affecting the Al-binding capacity of hemicellulose. PMID- 29323146 TI - Ca2+-permeable mechanosensitive channels MCA1 and MCA2 mediate cold-induced cytosolic Ca2+ increase and cold tolerance in Arabidopsis. AB - Cold shock triggers an immediate rise in the cytosolic free calcium concentration ([Ca2+]cyt) in Arabidopsis thaliana and this cold-induced elevation of [Ca2+]cyt is inhibited by lanthanum or EGTA. It is suggested that intracellular calcium mainly contributes to the cold-induced [Ca2+]cyt response by entering into the cytosol. Two calcium-permeable mechanosensitive channels, MCA1 and MCA2 (mid1 complementing activity), have been identified in Arabidopsis. Here, we demonstrate that MCA1 and MCA2 are involved in a cold-induced increase in [Ca2+]cyt. The cold-induced [Ca2+]cyt increase in mca1 and mca2 mutants was markedly lower than that in wild types. The mca1 mca2 double mutant exhibited chilling and freezing sensitivity, compared to wild-type plants. Expression of At5g61820, At3g51660, and At4g15490, which are not regulated by the CBF/DREB1s transcription factor, was down-regulated in mca1 mca2. These results suggest that MCA1 and MCA2 are involved in the cold-induced elevation of [Ca2+]cyt, cold tolerance, and CBF/DREB1-independent cold signaling. PMID- 29323149 TI - Winner-take-all in a phase oscillator system with adaptation. AB - We consider a system of generalized phase oscillators with a central element and radial connections. In contrast to conventional phase oscillators of the Kuramoto type, the dynamic variables in our system include not only the phase of each oscillator but also the natural frequency of the central oscillator, and the connection strengths from the peripheral oscillators to the central oscillator. With appropriate parameter values the system demonstrates winner-take-all behavior in terms of the competition between peripheral oscillators for the synchronization with the central oscillator. Conditions for the winner-take-all regime are derived for stationary and non-stationary types of system dynamics. Bifurcation analysis of the transition from stationary to non-stationary winner take-all dynamics is presented. A new bifurcation type called a Saddle Node on Invariant Torus (SNIT) bifurcation was observed and is described in detail. Computer simulations of the system allow an optimal choice of parameters for winner-take-all implementation. PMID- 29323147 TI - Laboratory Study on Disconnection Events in Comets. AB - When comets interacting with solar wind, straight and narrow plasma tails will be often formed. The most remarkable phenomenon of the plasma tails is the disconnection event, in which a plasma tail is uprooted from the comet's head and moves away from the comet. In this paper, the interaction process between a comet and solar wind is simulated by using a laser-driven plasma cloud to hit a cylinder obstacle. A disconnected plasma tail is observed behind the obstacle by optical shadowgraphy and interferometry. Our particle-in-cell simulations show that the difference in thermal velocity between ions and electrons induces an electrostatic field behind the obstacle. This field can lead to the convergence of ions to the central region, resulting in a disconnected plasma tail. This electrostatic-field-induced model may be a possible explanation for the disconnection events of cometary tails. PMID- 29323150 TI - Stratification-induced reorientation of disk settling through ambient density transition. AB - Settling due to gravity force is a basic transport mechanism of solid particles in fluids in the Earth. A large portion of particles occurring in nature and used in technical applications are non-spherical. Settling of particles is usually studied in homogeneous ambient conditions, however, stratification is inherent of natural fluids. It has been acknowledged that stratification modifies the velocity of settling spheres and amorphous aggregates. However, the effect of particle shape on the dynamics of settling through density-stratified ambient fluid has not been recognized well enough. Here I show experimental evidence that continuous density transition markedly modifies the settling dynamics of a disk in terms of settling velocity and orientation of a particle. Settling dynamics of a disk are more complex than dynamics of spheres and aggregates studied previously. I found that in a two-layer ambient with density transition, a disk settling in a low Reynolds number regime undergoes five phases of settling with the orientation varying from horizontal to vertical, and it may achieve two local minimum settling velocities in the density transition layer. Moreover, I found that the settling dynamics depends on a density difference between upper and lower homogeneous layers, stratification strength and thickness of density transition. PMID- 29323148 TI - Reference gene identification and validation for quantitative real-time PCR studies in developing Xenopus laevis. AB - Reference genes are essential for gene expression analysis when using real-time quantitative PCR (RT-qPCR). Xenopus laevis is a popular amphibian model for studying vertebrate embryogenesis and development. Further, X. laevis is ideal for studying thyroid signaling due to its thyroid dependent metamorphosis, a stage comparable to birth in humans. When using PCR based studies, a primary concern is the choice of reference genes. Commonly used references are eef1a1, odc1, rpl8, and actnB, although there is a lack of ad hoc reference genes for X. laevis. Here, we used previously published RNA-seq data on different X. laevis stages and identified the top 14 candidate genes with respect to their expression levels as a function of developmental stage and degree of variation. We further evaluated the stability of these and other candidate genes using RT-qPCR on various stages including the unfertilised eggs, whole embryos during early development and brains during late development. We used four different statistical software packages: deltaCT, geNorm, NormFinder and BestKeeper. We report optimized reference gene pair combinations for studying development (early whole embryos), brains at later stages (metamorphosis and adult), and thyroid signalling. These reference gene pairs are suitable for studying different aspects of X. laevis development and organogenesis. PMID- 29323151 TI - Downregulation of Heat Shock Protein 70 Impairs Osteogenic and Chondrogenic Differentiation in Human Mesenchymal Stem Cells. AB - Human mesenchymal stem cells (hMSCs) show promise for bone and cartilage regeneration. Our previous studies demonstrated that hMSCs with periodic mild heating had enhanced osteogenic and chondrogenic differentiation with significantly upregulated heat shock protein 70 (HSP70). However, the role of HSP70 in adult tissue regeneration is not well studied. Here, we revealed an essential regulatory mechanism of HSP70 in osteogenesis and chondrogenesis using adult hMSCs stably transfected with specific shRNAs to knockdown HSP70. Periodic heating at 39 degrees C was applied to hMSCs for up to 26 days. HSP70 knockdown resulted in significant reductions of alkaline phosphatase activity, calcium deposition, and gene expression of Runx2 and Osterix during osteogenesis. In addition, knockdown of HSP70 led to significant decreases of collagens II and X during chondrogenesis. Thus, downregulation of HSP70 impaired hMSC osteogenic and chondrogenic differentiation as well as the enhancement of these processes by thermal treatment. Taken together, these findings suggest a putative mechanism of thermal-enhanced bone and cartilage formation and underscore the importance of HSP70 in adult bone and cartilage differentiation. PMID- 29323152 TI - Unravelling the effects of mechanical physiological conditioning on cardiac adipose tissue-derived progenitor cells in vitro and in silico. AB - Mechanical conditioning is incompletely characterized for stimulating therapeutic cells within the physiological range. We sought to unravel the mechanism of action underlying mechanical conditioning of adipose tissue-derived progenitor cells (ATDPCs), both in vitro and in silico. Cardiac ATDPCs, grown on 3 different patterned surfaces, were mechanically stretched for 7 days at 1 Hz. A custom designed, magnet-based, mechanical stimulator device was developed to apply ~10% mechanical stretching to monolayer cell cultures. Gene and protein analyses were performed for each cell type and condition. Cell supernatants were also collected to analyze secreted proteins and construct an artificial neural network. Gene and protein modulations were different for each surface pattern. After mechanostimulation, cardiac ATDPCs increased the expression of structural genes and there was a rising trend on cardiac transcription factors. Finally, secretome analyses revealed upregulation of proteins associated with both myocardial infarction and cardiac regeneration, such as regulators of the immune response, angiogenesis or cell adhesion. To conclude, mechanical conditioning of cardiac ATDPCs enhanced the expression of early and late cardiac genes in vitro. Additionally, in silico analyses of secreted proteins showed that mechanical stimulation of cardiac ATDPCs was highly associated with myocardial infarction and repair. PMID- 29323153 TI - Skeletal Characterization of the Fgfr3 Mouse Model of Achondroplasia Using Micro CT and MRI Volumetric Imaging. AB - Achondroplasia, the most common form of dwarfism, affects more than a quarter million people worldwide and remains an unmet medical need. Achondroplasia is caused by mutations in the fibroblast growth factor receptor 3 (FGFR3) gene which results in over-activation of the receptor, interfering with normal skeletal development leading to disproportional short stature. Multiple mouse models have been generated to study achondroplasia. The characterization of these preclinical models has been primarily done with 2D measurements. In this study, we explored the transgenic model expressing mouse Fgfr3 containing the achondroplasia mutation G380R under the Col2 promoter (Ach). Survival and growth rate of the Ach mice were reduced compared to wild-type (WT) littermates. Axial skeletal defects and abnormalities of the sternebrae and vertebrae were observed in the Ach mice. Further evaluation of the Ach mouse model was performed by developing 3D parameters from micro-computed tomography (micro-CT) and magnetic resonance imaging (MRI). The 3-week-old mice showed greater differences between the Ach and WT groups compared to the 6-week-old mice for all parameters. Deeper understanding of skeletal abnormalities of this model will help guide future studies for evaluating novel and effective therapeutic approaches for the treatment of achondroplasia. PMID- 29323155 TI - Canopy nitrogen distribution is optimized to prevent photoinhibition throughout the canopy during sun flecks. AB - As photoinhibition primarily reduces the photosynthetic light use efficiency at low light, sunfleck-induced photoinhibition might result in a fatal loss of carbon gain in the shade leaves within a canopy with barely positive carbon balance. We hypothesized that shade leaves at the lower canopy might retain a certain amount of leaf nitrogen (NL) to maintain energy consumption via electron transport, which contributes to circumventing photoinhibition during sunflecks to keep efficient utilization of low light during the rest period of daytime. We investigated excess energy production, a potential measure of susceptibility to photoinhibition, as a function of NL distribution within a Japanese oak canopy. Optimal NL distribution, which maximizes canopy carbon gain, may lead to a higher risk of photoinhibition in shade leaves during sunflecks. Conversely, uniform NL distribution would cause a higher risk of photoinhibition in sun leaves under the direct sunlight. Actual NL distribution equalized the risk of photoinhibition throughout the canopy indicated by the constant excess energy production at the highest light intensities that the leaves received. Such a homeostatic adjustment as a whole canopy concerning photoinhibition would be a key factor to explain why actual NL distribution does not maximize canopy carbon gain. PMID- 29323154 TI - Effects of metformin on colorectal cancer stem cells depend on alterations in glutamine metabolism. AB - Metformin has been known to suppress cancer stem cells (CSCs) in some cancers. However, the differential effects of metformin on CSCs and their mechanisms have not been reported. Herein, metformin induced pAMPK activation and pS6 suppression in metformin-sensitive (HT29) cells, but not in metformin-resistant (SW620) cells. The oxygen consumption rate was higher in HT29 cells than in SW620 cells and showed a prominent decrease after metformin treatment in HT29 cells. In glutamine-depleted medium, but not in low-glucose medium, SW620 cells became sensitive to the CSC-suppressing effect of metformin. A combination of metformin and glutaminase C inhibitor (compound 968) suppressed CSCs in SW620 cells and enhanced that effect in HT29 cells. SW620 cells showed higher expression of glutaminase 1 and glutamine transporter (ASCT2) than HT29 cells, especially ASCT2 in CSCs. Knockdown of glutaminase 1, ASCT2, and c-Myc induced significant CSC suppression and enhanced CSC-suppressing effect of metformin and compound 968. In xenografts and human cancer organoids, combined treatment with metformin and compound 968 showed the same results as those shown in vitro. In conclusion, the effect of metformin on CSCs varies depending on the AMPK-mTOR and glutamine metabolism. The inhibition of glutamine pathway could enhance the CSC-suppressing effect of metformin, overcoming metformin resistance. PMID- 29323156 TI - Ischemia-induced Neuronal Cell Death Is Mediated by Chemokine Receptor CX3CR1. AB - The chemokine fractalkine (CX3CL1) and its receptor CX3CR1 play a fundamental role in the pathophysiology of stroke. Previous studies have focused on a paracrine interaction between neurons that produce fractalkine and microglia that express CX3CR1 receptors in the central nervous system. Recent findings have demonstrated the functional expression of CX3CR1 receptors by hippocampal neurons, suggesting their involvement in neuroprotective and neurodegenerative actions. To elucidate the roles of neuronal CX3CR1 in neurodegeneration induced by ischemic stroke, a mouse model of permanent middle cerebral artery occlusion (pMCAO) was employed. In the pMCAO mice, increased CX3CR1 levels, apoptosis associated morphological changes, and Caspase 3-positive neuronal cells were observed in the striatum and in the hippocampus 24 hours after occlusion. Upregulation of CX3CR1 in ischemic neurons is associated with neuronal apoptotic cell death. In contrast, ischemia-induced apoptotic neuronal cell death was decreased in CX3CR1 deficient mice. Cultured primary hippocampal neurons obtained from CX3CR1 deficient mice were more resistant to glutamate-induced excitotoxicity by blocking calcium influx than those from wild-type mice. For the first time, we reported that neuronal CXCR1 mediates neuronal apoptotic cell death in ischemia. Our results suggest that modulating CXCR1 activity offers a novel therapeutic strategy for stroke. PMID- 29323157 TI - Microwave measurement of giant unilamellar vesicles in aqueous solution. AB - A microwave technique is demonstrated to measure floating giant unilamellar vesicle (GUV) membranes in a 25 MUm wide and 18.8 MUm high microfluidic channel. The measurement is conducted at 2.7 and 7.9 GHz, at which a split-ring resonator (SRR) operates at odd modes. A 500 nm wide and 100 MUm long SRR split gap is used to scan GUVs that are slightly larger than 25 MUm in diameter. The smaller fluidic channel induces flattened GUV membrane sections, which make close contact with the SRR gap surface. The used GUVs are synthesized with POPC (16:0-18:1 PC 1 palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine), SM (16:0 Egg Sphingomyelin) and cholesterol at different molecular compositions. It is shown that SM and POPC bilayers have different dielectric permittivity values, which also change with measurement frequencies. The obtained membrane permittivity values, e.g. 73.64 j6.13 for POPC at 2.7 GHz, are more than 10 times larger than previously reported results. The discrepancy is likely due to the measurement of dielectric polarization parallel with, other than perpendicular to, the membrane surface. POPC and SM-rich GUV surface sections are also clearly identified. Further work is needed to verify the obtained large permittivity values and enable accurate analysis of membrane composition. PMID- 29323158 TI - Climate change risk to forests in China associated with warming. AB - Variations in forest net primary productivity (NPP) reflects the combined effects of key climate variables on ecosystem structure and function, especially on the carbon cycle. We performed risk analysis indicated by the magnitude of future negative anomalies in NPP in comparison with the natural interannual variability to investigate the impact of future climatic projections on forests in China. Results from the multi-model ensemble showed that climate change risk of decreases in forest NPP would be more significant in higher emission scenario in China. Under relatively low emission scenarios, the total area of risk was predicted to decline, while for RCP8.5, it was predicted to first decrease and then increase after the middle of 21st century. The rapid temperature increases predicted under the RCP8.5 scenario would be probably unfavorable for forest vegetation growth in the long term. High-level risk area was likely to increase except RCP2.6. The percentage area at high risk was predicted to increase from 5.39% (2021-2050) to 27.62% (2071-2099) under RCP8.5. Climate change risk to forests was mostly concentrated in southern subtropical and tropical regions, generally significant under high emission scenario of RCP8.5, which was mainly attributed to the intensified dryness in south China. PMID- 29323159 TI - Temperature-induced surface reconstruction and interface structure evolution on ligament of nanoporous copper. AB - Micromorphology and atomic arrangement on ligament surface of nanoporous metals play a vital role in maintaining the structural stability, adjusting the reaction interface and endowing the functionality. Here we offer an instructive scientific understanding for temperature-induced surface reconstruction and interface structure evolution on ligament of nanoporous copper (NPC) based on systematically experimental observations and theoretical calculations. The results show that with dealloying temperature increasing, ligament surface micromorphology of NPC evolves from smooth to irregularity and to uniformly compressed semisphere, and finally to dispersed single-crystal nanoparticles accompanying with significant changes of interface structure from coherence to semi-coherence and to noncoherence. It can guide us to impart multifunctionality and enhanced reaction activity to porous materials just through surface self modification of homogeneous atoms rather than external invasion of heteroatoms that may bring about unexpected ill effects, such as shortened operation life owing to poisoning. PMID- 29323160 TI - Glutathione S-transferase (GST) of American Cockroach, Periplaneta americana: Classes, Isoforms, and Allergenicity. AB - Insect glutathione S-transferases (GSTs) play important roles in insecticide/drug resistance and stress response. Medically, GSTs of house dust mites (Dermatophagoides pteronyssinus and Blomia tropicalis) and German cockroach (Blattella germanica) are human allergens. In this study, classes, isoforms and B cell and allergenic epitopes of GST of American cockroach, Periplaneta americana, the predominant species in the tropics and subtropics were investigated for the first time. Enzymatically active native and recombinant P. americana-GSTs bound to IgE in sera of all P. americana allergic patients that were tested. By gel based proteomics and multiple sequence alignments, the native GST comprises three isoforms of delta and sigma classes. All isoforms interacted with serum IgE of the cockroach allergic subjects. Molecularly, the protein contains six B-cell epitopes; two epitopes located at beta1-alpha1 and beta4-alpha3 regions bound to patients' serum IgE, indicating that they are allergenic. P. americana are ubiquitous and their GST can sensitize humans to allergic diseases; thus, the protein should be included in the allergen array for component resolved diagnosis (CRD) of allergic patients, either by skin prick test or specific IgE determination. The GST is suitable also as a target of environmental allergen detection and quantification for intervention of cockroach sensitization and allergic morbidity. PMID- 29323161 TI - Lack of Fgf18 causes abnormal clustering of motor nerve terminals at the neuromuscular junction with reduced acetylcholine receptor clusters. AB - FGF receptor 2 is involved in the formation of the neuromuscular junction (NMJ), but its in vivo ligand remains to be determined. Laser capture microdissection of the mouse spinal motor neurons (SMNs) revealed that Fgf18 mRNA is highly expressed in SMNs in adults. Expression of Fgf18 mRNA was the highest in the spinal cord at embryonic day (E) 15.5, which gradually decreased to postnatal day 7. FGF18 protein was localized at the NMJs of the tibialis anterior muscle at E18.5 and in adults. Fgf18-/- mice at E18.5 showed decreased expressions of the NMJ-specific Chrne and Colq genes in the diaphragm. In Fgf18-/- diaphragms, the synaptophysin-positive areas at the nerve terminals and the acetylcholine receptor (AChR)-positive areas at the motor endplates were both approximately one third of those in wild-type embryos. Fgf18-/- diaphragms ultrastructurally showed abnormal aggregation of multiple nerve terminals making a gigantic presynapse with sparse synaptic vesicles, and simplified motor endplates. In Fgf18-/- diaphragms, miniature endplate potentials were low in amplitude with markedly reduced frequency. In C2C12 myotubes, FGF18 enhanced AChR clustering, which was blocked by inhibiting FGFRs or MEK1. We propose that FGF18 plays a pivotal role in AChR clustering and NMJ formation in mouse embryogenesis. PMID- 29323163 TI - Carrier Dynamics and Electro-Optical Characterization of High-Performance GaN/InGaN Core-Shell Nanowire Light-Emitting Diodes. AB - In this work, we demonstrate high-performance electrically injected GaN/InGaN core-shell nanowire-based LEDs grown using selective-area epitaxy and characterize their electro-optical properties. To assess the quality of the quantum wells, we measure the internal quantum efficiency (IQE) using conventional low temperature/room temperature integrated photoluminescence. The quantum wells show a peak IQE of 62%, which is among the highest reported values for nanostructure-based LEDs. Time-resolved photoluminescence (TRPL) is also used to study the carrier dynamics and response times of the LEDs. TRPL measurements yield carrier lifetimes in the range of 1-2 ns at high excitation powers. To examine the electrical performance of the LEDs, current density-voltage (J-V) and light-current density-voltage (L-J-V) characteristics are measured. We also estimate the peak external quantum efficiency (EQE) to be 8.3% from a single side of the chip with no packaging. The LEDs have a turn-on voltage of 2.9 V and low series resistance. Based on FDTD simulations, the LEDs exhibit a relatively directional far-field emission pattern in the range of [Formula: see text]15 degrees . This work demonstrates that it is feasible for electrically injected nanowire-based LEDs to achieve the performance levels needed for a variety of optical device applications. PMID- 29323162 TI - High co-expression of IL-34 and M-CSF correlates with tumor progression and poor survival in lung cancers. AB - Despite recent advances in diagnosis and treatment of lung cancers, the 5-year survival rate remains unsatisfactory, which necessitates the identification of novel factors that associates with disease progression and malignant degree for improving diagnostic and therapeutic strategies. Recent progress in cancer immunology research has unveiled critical roles for colony stimulating factor 1 receptor (CSF1R) in multiple aspects of the tumor microenvironment. CSF1R is expressed on tumor-associated macrophages (TAMs), and mediates important pro tumorigenic functions. CSF1R also provides critical autocrine signals that promote cancer cell survival and proliferation. Activation of CSF1R can be achieved by two independent ligands; macrophage colony-stimulating factor (M-CSF) and interleukin 34 (IL-34). Accordingly, the expression of these ligands in cancer is expected to result in poor prognosis. In this study, we show that IL-34 and M-CSF expression correlates with poor survival in a cohort of lung cancer patients. Importantly, high co-expression of IL-34 and M-CSF associates with the poorest survival compared to cancers that show weak or absent expression of the two ligands. Furthermore, high expression of IL-34 and M-CSF associates with advanced stages of lung cancers. Together, these results indicate a correlation between IL-34/M-CSF expression with poor survival and disease progression in lung cancer patients. PMID- 29323164 TI - Tailoring Lattice Strain and Ferroelectric Polarization of Epitaxial BaTiO3 Thin Films on Si(001). AB - Ferroelectric BaTiO3 films with large polarization have been integrated with Si(001) by pulsed laser deposition. High quality c-oriented epitaxial films are obtained in a substrate temperature range of about 300 degrees C wide. The deposition temperature critically affects the growth kinetics and thermodynamics balance, resulting on a high impact in the strain of the BaTiO3 polar axis, which can exceed 2% in films thicker than 100 nm. The ferroelectric polarization scales with the strain and therefore deposition temperature can be used as an efficient tool to tailor ferroelectric polarization. The developed strategy overcomes the main limitations of the conventional strain engineering methodologies based on substrate selection: it can be applied to films on specific substrates including Si(001) and perovskites, and it is not restricted to ultrathin films. PMID- 29323165 TI - Biotransformation and tissue distribution of protopine and allocryptopine and effects of Plume Poppy Total Alkaloid on liver drug-metabolizing enzymes. AB - In this study, the biotransformation in the plasma, urine and feces of rats following oral administration of protopine (PRO) and allocryptopine (ALL)were explored using HPLC-QqTOF MS. An HPLC-MS/MS method for the determination of tissues was developed and applied to the tissue distribution study in rats following intragastric administration of Plume Poppy Total Alkaloid for 3 weeks. A total of ten PRO metabolites and ten ALL metabolites were characterized in rats in vivo. Among these metabolites, six PRO metabolites and five ALL metabolites were reported for the first time. The predicated metabolic pathways including ring cleavage, demethylation following ring cleavage, and glucuronidation were proposed. The low-concentration residue of PRO and ALL in various tissues was detected at 24 h and 48 h after dosing, which indicated that both compounds could be widely distributed in tissues and exist as low levels of residue. The activities of erythromycin N-demethylase, aminopyrine N-demethylase and NAD (P)H quinone oxidoreductase in female rats can be induced post-dose, but these activities were inhibited in male rats. The proposed biotransformation and residues of PRO and ALL and their effects on enzymes may provide a basis for clarifying the metabolism and interpreting pharmacokinetics. PMID- 29323166 TI - Characterization of a new Pm2 allele associated with broad-spectrum powdery mildew resistance in wheat line Subtil. AB - Wheat powdery mildew is a severe disease affecting yield and quality. Host resistance was proved to be effective and environment-friendly. Wheat line Subtil is an elite germplasm resource resistant to 28 of 30 tested Bgt isolates. Genetic analysis showed that the powdery mildew resistance in Subtil was conferred by a single dominant gene, temporarily designated PmSub. Using bulked segregant analysis, PmSub was mapped to chromosome arm 5DS, and flanked by the markers Bwm16 and Cfd81/Bwm21 at 5.0 and 0.9 cM, respectively. Allelism tests further confirmed PmSub was allelic with documented Pm2 alleles. Then, homologous sequences of Pm2a related sequence was cloned from Subtil and Chinese Spring. It was completely identical to the reported Pm2a sequence, but significantly different from that of Chinese Spring. A marker SWGI067 was developed based on the sequence divergence of homologous sequence in Subtil and Chinese Spring. SWGI067 was closely linked to PmSub, indicating that the gene PmSub itself was different from the cloned Pm2a related sequence. Meanwhile, Subtil produced significantly different reaction pattern compared with other genotypes with Pm genes at or near Pm2 locus. Therefore, PmSub was most likely a new allele of Pm2. PmSub has opportunities for marker-assisted selecting for high-efficiency wheat improvement. PMID- 29323167 TI - Neural correlates of perceptual separation-induced enhancement of prepulse inhibition of startle in humans. AB - Prepulse inhibition (PPI) is the suppression of the startle reflex when the intense startling stimulus is shortly preceded by a weaker non-startling stimulus (prepulse). In rats, the auditory precedence-effect-induced perceived spatial separation between the fear-conditioned prepulse and a noise masker facilitates selective attention to the prepulse and enhances PPI. However, whether the perceptual separation between the prepulse and a noise masker can also enhance PPI in humans remains unclear. Also, the relationship between the PPI enhancement and the change in early cortical representations of prepulse signals is unclear. This study for the first time reveals that in a sound-attenuated laboratory environment, relative to the listening condition with perceptual co-location between the prepulse stimulus and a noise-masking stimulus, the perceptual separation between the two stimuli significantly enhances the group-mean PPI. More importantly, the early cortical responses (N1/P2 complex) to the prepulse stimulus are also enhanced by the perceptual separation in most listeners, and the perceptual-separation-induced enhancement of the N1 component is positively correlated with the perceptual-separation-induced PPI enhancement. Thus, the perceptual separation enhances PPI through facilitating selective attention to the prepulse, leading to an enhancement of the early cortical representation of the prepulse signal in temporal auditory cortical fields. PMID- 29323169 TI - Reconstruction of the domain orientation distribution function of polycrystalline PZT ceramics using vector piezoresponse force microscopy. AB - Lead zirconate titanate (PZT) is one of the prominent materials used in polycrystalline piezoelectric devices. Since the ferroelectric domain orientation is the most important parameter affecting the electromechanical performance, analyzing the domain orientation distribution is of great importance for the development and understanding of improved piezoceramic devices. Here, vector piezoresponse force microscopy (vector-PFM) has been applied in order to reconstruct the ferroelectric domain orientation distribution function of polished sections of device-ready polycrystalline lead zirconate titanate (PZT) material. A measurement procedure and a computer program based on the software Mathematica have been developed to automatically evaluate the vector-PFM data for reconstructing the domain orientation function. The method is tested on differently in-plane and out-of-plane poled PZT samples, and the results reveal the expected domain patterns and allow determination of the polarization orientation distribution function at high accuracy. PMID- 29323168 TI - Variations in bacterial and archaeal communities along depth profiles of Alaskan soil cores. AB - Understating the microbial communities and ecological processes that influence their structure in permafrost soils is crucial for predicting the consequences of climate change. In this study we investigated the bacterial and archaeal communities along depth profiles of four soil cores collected across Alaska. The bacterial and archaeal diversity (amplicon sequencing) overall decreased along the soil depth but the depth-wise pattern of their abundances (qPCR) varied by sites. The community structure of bacteria and archaea displayed site-specific pattern, with a greater role of soil geochemical characteristics rather than soil depth. In particular, we found significant positive correlations between methane trapped in cores and relative abundance of methanogenic archaeal genera, indicating a strong association between microbial activity and methane production in subsurface soils. We observed that bacterial phylogenetic community assembly tended to be more clustered in surface soils than in deeper soils. Analyses of phylogenetic community turnover among depth profiles across cores indicated that the relative influence of deterministic and stochastic processes was mainly determined by soil properties rather than depth. Overall, our findings emphasize that the vertical distributions of bacterial and archaeal communities in permafrost soils are to a large extent determined by the variation in site specific soil properties. PMID- 29323171 TI - New anti-inflammatory guaianes from the Atlantic hydrotherm-derived fungus Graphostroma sp. MCCC 3A00421. AB - Nine new guaianes (graphostromanes A-I, 1-9) were isolated from the deep-sea derived fungus Graphostroma sp. MCCC 3A00421, along with four known ones (10-13). The relative configurations were established mainly by detailed analysis of the NMR and HRESIMS data, while the absolute configurations were assigned using the X ray crystallography and modified Mosher's method. All isolates were evaluated for their inhibitory effects against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 macrophages. Graphostromanes F (6) showed remarkable inhibitory effect with an IC50 value of 14.2 MUM, which was even stronger than that of aminoguanidine, a positive control with an IC50 value of 23.4 MUM. PMID- 29323170 TI - Droplet digital PCR-based EGFR mutation detection with an internal quality control index to determine the quality of DNA. AB - In clinical translational research and molecular in vitro diagnostics, a major challenge in the detection of genetic mutations is overcoming artefactual results caused by the low-quality of formalin-fixed paraffin-embedded tissue (FFPET) derived DNA (FFPET-DNA). Here, we propose the use of an 'internal quality control (iQC) index' as a criterion for judging the minimum quality of DNA for PCR-based analyses. In a pre-clinical study comparing the results from droplet digital PCR based EGFR mutation test (ddEGFR test) and qPCR-based EGFR mutation test (cobas EGFR test), iQC index >= 0.5 (iQC copies >= 500, using 3.3 ng of FFPET-DNA [1,000 genome equivalents]) was established, indicating that more than half of the input DNA was amplifiable. Using this criterion, we conducted a retrospective comparative clinical study of the ddEGFR and cobas EGFR tests for the detection of EGFR mutations in non-small cell lung cancer (NSCLC) FFPET-DNA samples. Compared with the cobas EGFR test, the ddEGFR test exhibited superior analytical performance and equivalent or higher clinical performance. Furthermore, iQC index is a reliable indicator of the quality of FFPET-DNA and could be used to prevent incorrect diagnoses arising from low-quality samples. PMID- 29323172 TI - Predictions through evidence accumulation over time. AB - It has been proposed that the brain specializes in predicting future states of the environment. These predictions are probabilistic, and must be continuously updated on the basis of their mismatch with actual evidence. Although electrophysiological data disclose neural activity patterns in relation to predictive processes, little is known about how this activity supports prediction build-up through evidence accumulation. Here we addressed this gap. Participants were required to make moment-by-moment predictions about stimuli presented in sequences in which gathering evidence from previous items as they were presented was either possible or not. Two event-related potentials (ERP), a frontocentral P2 and a central P3, were sensitive to information accumulation throughout the sequence. Time-frequency (TF) analyses revealed that prediction build-up process also modulated centrally distributed theta activity, and that alpha power was suppressed in anticipation to fully predictable stimuli. Results are in agreement with the notion of predictions as probability distributions and highlight the ability of observers to extract those probabilities in a changing environment and to adjust their predictions consequently. PMID- 29323173 TI - Electroporation of mice zygotes with dual guide RNA/Cas9 complexes for simple and efficient cloning-free genome editing. AB - In this report, we present an improved protocol for CRISPR/Cas9 genome editing in mice. The procedure consists in the electroporation of intact mouse zygotes with ribonucleoprotein complexes prepared in vitro from recombinant Cas9 nuclease and synthetic dual guide RNA. This simple cloning-free method proves to be extremely efficient for the generation of indels and small deletions by non-homologous end joining, and for the generation of specific point mutations by homology-directed repair. The procedure, which avoids DNA construction, in vitro transcription and oocyte microinjection, greatly simplifies genome editing in mice. PMID- 29323174 TI - Large-scale transcriptome changes in the process of long-term visual memory formation in the bumblebee, Bombus terrestris. AB - Many genes have been implicated in mechanisms of long-term memory formation, but there is still much to be learnt about how the genome dynamically responds, transcriptionally, during memory formation. In this study, we used high throughput sequencing to examine how transcriptome profiles change during visual memory formation in the bumblebee (Bombus terrestris). Expression of fifty-five genes changed immediately after bees were trained to associate reward with a single coloured chip, and the upregulated genes were predominantly genes known to be involved in signal transduction. Changes in the expression of eighty-one genes were observed four hours after learning a new colour, and the majority of these were upregulated and related to transcription and translation, which suggests that the building of new proteins may be the predominant activity four hours after training. Several of the genes identified in this study (e.g. Rab10, Shank1 and Arhgap44) are interesting candidates for further investigation of the molecular mechanisms of long-term memory formation. Our data demonstrate the dynamic gene expression changes after associative colour learning and identify genes involved in each transcriptional wave, which will be useful for future studies of gene regulation in learning and long-term memory formation. PMID- 29323176 TI - Crystallization and Polymorphism of Organic Semiconductor in Thin Film Induced by Surface Segregated Monolayers. AB - Preparation of highly crystalline organic semiconductor films is vital to achieving high performance in electronic devices. Here we report that surface segregated monolayers (SSMs) on top of phenyl-C61-butyric acid methyl ester (PCBM) thin films induce crystal growth in the bulk, resulting in a dramatic change in the structure to form a new crystal phase. Highly ordered crystalline films with large domain sizes of several hundreds of nanometers are formed with uniaxial orientation of the crystal structure perpendicular to the substrate. The molecular rearrangements in SSMs trigger the nucleation at a lower temperature than that for the spontaneous nucleation in PCBM. The vertical charge mobility in the SSM-induced crystal domains of PCBM is five times higher than in the ordinary polycrystalline domains. Using surface monolayers may be a new strategy for controlling crystal structures and obtaining high-quality organic thin films by post-deposition crystallization. PMID- 29323175 TI - Functional Antibody Response Against V1V2 and V3 of HIV gp120 in the VAX003 and VAX004 Vaccine Trials. AB - Immunization with HIV AIDSVAX gp120 vaccines in the phase III VAX003 and VAX004 trials did not confer protection. To understand the shortcomings in antibody (Ab) responses induced by these vaccines, we evaluated the kinetics of Ab responses to the V1V2 and V3 regions of gp120 and the induction of Ab-mediated antiviral functions during the course of 7 vaccinations over a 30.5-month period. Plasma samples from VAX003 and VAX004 vaccinees and placebo recipients were measured for ELISA-binding Abs and for virus neutralization, Ab-dependent cellular phagocytosis (ADCP), and Ab-dependent cellular cytotoxicity (ADCC). Ab responses to V1V2 and V3 peaked after 3 to 4 immunizations and declined after 5 to 7 immunizations. The deteriorating responses were most evident against epitopes in the underside of the V1V2 beta-barrel and in the V3 crown. Correspondingly, vaccinees demonstrated higher neutralization against SF162 pseudovirus sensitive to anti-V1V2 and anti-V3 Abs after 3 or 4 immunizations than after 7 immunizations. Higher levels of ADCP and ADCC were also observed at early or mid time points as compared with the final time point. Hence, VAX003 and VAX004 vaccinees generated V1V2- and V3-binding Abs and functional Abs after 3 to 4 immunizations, but subsequent boosts did not maintain these responses. PMID- 29323177 TI - Kirigami-based Elastic Metamaterials with Anisotropic Mass Density for Subwavelength Flexural Wave Control. AB - A novel design of an elastic metamaterial with anisotropic mass density is proposed to manipulate flexural waves at a subwavelength scale. The three dimensional metamaterial is inspired by kirigami, which can be easily manufactured by cutting and folding a thin metallic plate. By attaching the resonant kirigami structures periodically on the top of a host plate, a metamaterial plate can be constructed without any perforation that degrades the strength of the pristine plate. An analytical model is developed to understand the working mechanism of the proposed elastic metamaterial and the dispersion curves are calculated by using an extended plane wave expansion method. As a result, we verify an anisotropic effective mass density stemming from the coupling between the local resonance of the kirigami cells and the global flexural wave propagations in the host plate. Finally, numerical simulations on the directional flexural wave propagation in a two-dimensional array of kirigami metamaterial as well as super-resolution imaging through an elastic hyperlens are conducted to demonstrate the subwavelength-scale flexural wave control abilities. The proposed kirigami-based metamaterial has the advantages of no-perforation design and subwavelength flexural wave manipulation capability, which can be highly useful for engineering applications including non-destructive evaluations and structural health monitoring. PMID- 29323178 TI - MiR-152 Regulates Apoptosis and Triglyceride Production in MECs via Targeting ACAA2 and HSD17B12 Genes. AB - Mammary epithelial cells (MECs) affect milk production capacity during lactation and are critical for the maintenance of tissue homeostasis. Our previous studies have revealed that the expression of miR-152 was increased significantly in MECs of cows with high milk production. In the present study, bioinformatics analysis identified ACAA2 and HSD17B12 as the potential targets of miR-152, which were further validated by dual-luciferase repoter assay. In addition, the expressions of miR-152 was shown to be negatively correlated with levels of mRNA and protein of ACAA2, HSD17B12 genes by qPCR and western bot analysis. Furthermore, transfection with miR-152 significantly up-regulated triglyceride production, promoted proliferation and inhibited apoptosis in MECs. Furthermore, overexpression of ACAA2 and HSD17B12 could inhibit triglyceride production, cells proliferation and induce apoptosis; but sh234-ACAA2-181/sh234-HSD17B12-474 could reverse the trend. These findings suggested that miR-152 could significantly influence triglyceride production and suppress apoptosis, possibly via the expression of target genes ACAA2 and HSD17B12. PMID- 29323179 TI - Neither action nor phonological video games make dyslexic children read better. AB - The prevalence and long-term consequences of dyslexia make it crucial to look for effective and efficient ways of its therapy. Action video games (AVG) were implied as a possible remedy for difficulties in reading in Italian and English speaking children. However, the studies examining the effectiveness of AVG application in dyslexia suffered from significant methodological weaknesses such as small sample sizes and lack of a control group with no intervention. In our study, we tested how two forms of training: based on AVG and on phonological non action video games (PNAVG), affect reading in a group of fifty-four Polish children with dyslexia. Both speed and accuracy of reading increased in AVG as much as in PNAVG group. Moreover, both groups improved in phonological awareness, selective attention and rapid naming. Critically, the reading progress in the two groups did not differ from a dyslexic control group which did not participate in any training. Thus, the observed improvement in reading in AVG and PNAVG can be attributed either to the normal reading development related to schooling or to test practice effect. Overall, we failed to replicate previous studies: Neither AVG nor PNAVG remedy difficulties in reading in school children. PMID- 29323180 TI - Low amounts of dietary fibre increase in vitro production of short-chain fatty acids without changing human colonic microbiota structure. AB - This study investigated the effect of various prebiotics (indigestible dextrin, alpha-cyclodextrin, and dextran) on human colonic microbiota at a dosage corresponding to a daily intake of 6 g of prebiotics per person (0.2% of dietary intake). We used an in vitro human colonic microbiota model based on batch fermentation starting from a faecal inoculum. Bacterial 16S rRNA gene sequence analysis showed that addition of 0.2% prebiotics did not change the diversity and composition of colonic microbiota. This finding coincided with results from a clinical study showing that the microbiota composition of human faecal samples remained unchanged following administration of 6 g of prebiotics over seven days. However, compared to absence of prebiotics, their addition reduced the pH and increased the generation of acetate and propionate in the in vitro system. Thus, even at such relatively low amounts, prebiotics appear capable of activating the metabolism of colonic microbiota. PMID- 29323182 TI - Thickness Control of the Spin-Polarized Two-Dimensional Electron Gas in LaAlO3/BaTiO3 Superlattices. AB - We explored the possibility of increasing the interfacial carrier quantum confinement, mobility and conductivity in the (LaAlO3)n/(BaTiO3)n superlattices by thickness regulation using the first-principles electronic structure calculations. Through constructing two different interfacial types of LaAlO3/BaTiO3 superlattices, we discovered that the LaO/TiO2 interface is preferred from cleavage energy consideration. We then studied the electronic characteristics of two-dimensional electron gas (2DEG) produced at the LaO/TiO2 interface in the LaAlO3/BaTiO3 superlattices via spin-polarized density functional theory calculations. The charge carrier density of 2DEG has a magnitude of 1014 cm-2 (larger than the traditional system LaAlO3/SrTiO3), which is mainly provided by the interfacial Ti 3dxy orbitals when the thicknesses of LaAlO3 and BaTiO3 layers are over 4.5 unit cells. We have also revealed the interfacial electronic characteristics of the LaAlO3/BaTiO3 system, by showing the completely spin-polarized 2DEG mostly confined at the superlattice interface. The interfacial charge carrier mobility and conductivity are found to be converged beyond the critical thickness. Therefore, we can regulate the interfacial confinement for the spin-polarized 2DEG and quantum transport properties in LaAlO3/BaTiO3 superlattice via controlling the thicknesses of the LaAlO3 and BaTiO3 layers. PMID- 29323181 TI - Oral exposure of low-dose bisphenol A promotes proliferation of dorsolateral prostate and induces epithelial-mesenchymal transition in aged rats. AB - Bisphenol A (BPA) is a well-known endocrine disruptor compound reported to have prostate toxicity. This study aimed to assess the effect of BPA on the proliferation of dorsolateral prostate (DLP) and the expression of epithelial mesenchymal transition (EMT)-related genes in aged rats. Male aged SD rats were treated with BPA (10.0, 30.0, and 90.0 ug/kg i.g., daily) or vehicle (i.g., daily) for 3 months. Treatment with BPA resulted in increased the expression of PCNA, DLP weight and DLP epithelial height compared with the control group (P < 0.01); such effects were more obvious at higher BPA doses. 90 ug/kg BPA significantly increased the estrogen to androgen ratio (P < 0.05). The EMT chip showed the BPA induced upregulation of vimentin, Snail, Twist1, and transforming growth factor beta 1, as well as the downregulation of E-cadherin in the DLP. Immunohistochemical data showed that the expression of vimentin, estrogen receptor subtypes, and androgen receptor increased and the expression of E cadherin decreased in 30 and 90 ug/kg BPA groups. It was concluded that environmental exposure to low doses of BPA might promote the proliferation of DLP in aged rats by increasing the estrogen to androgen ratio and inducing EMT. PMID- 29323184 TI - Microbial synthesis of a useful optically active (+)-isomer of lactone with bicyclo[4.3.0]nonane structure. AB - Lactone 2a of a bicyclo[4.3.0]nonane structure is a good starting material for synthesis of many attractive compounds. Enantiomerically enriched (-)-(3aR,7aS) lactone 2a is produced by whole cells of bacteria. In order to examine the impact of the absolute configuration on biological activity we evaluated the process affording the opposite isomer. To this purpose Candida pelliculosa ZP22 characterized by high dehydrogenase activity was used. The goal of presented work was to perform bioreactor scale microbial one-pot oxidation of diol with selected yeast strain C. pelliculosa ZP22 to obtain chiral (+)-(3aS,7aR)-lactone 2a. The idea was to influence on alcohol dehydrogenase activity by increasing the activity of pro-(+)-ADH and simultanously diminishing the activity of pro-(-) ADH. The optimization of biotransformation conditions involved the manipulation of the nutritional and physical parameters. Selection of the optimal medium in order to improve yield and process enantioselectivity was based on a two-level factorial design methodology. We have also studied the relationship between microbial growth and biosynthesis of lactone 2a. Preparative oxidation of diol 3a (400 mg/L, 2.9 mM) catalyzed by C. pelliculosa ZP22 in an optimized conditions afforded enantiomerically enriched (+)-(3aS,7aR)-isomer of lactone 2a with the isolated yield (30%). PMID- 29323183 TI - Delivery of xenon-containing echogenic liposomes inhibits early brain injury following subarachnoid hemorrhage. AB - Xenon (Xe), a noble gas, has promising neuroprotective properties with no proven adverse side-effects. We evaluated neuroprotective effects of Xe delivered by Xe containing echogenic liposomes (Xe-ELIP) via ultrasound-controlled cerebral drug release on early brain injury following subarachnoid hemorrhage (SAH). The Xe ELIP structure was evaluated by ultrasound imaging, electron microscopy and gas chromatography-mass spectroscopy. Animals were randomly divided into five groups: Sham, SAH, SAH treated with Xe-ELIP, empty ELIP, or Xe-saturated saline. Treatments were administrated intravenously in combination with ultrasound application over the common carotid artery to trigger Xe release from circulating Xe-ELIP. Hematoma development was graded by SAH scaling and quantitated by a colorimetric method. Neurological evaluation and motor behavioral tests were conducted for three days following SAH injury. Ultrasound imaging and electron microscopy demonstrated that Xe-ELIP have a unique two-compartment structure, which allows a two-stage Xe release profile. Xe-ELIP treatment effectively reduced bleeding, improved general neurological function, and alleviated motor function damage in association with reduced apoptotic neuronal death and decreased mortality. Xe-ELIP alleviated early SAH brain injury by inhibiting neuronal death and bleeding. This novel approach provides a noninvasive strategy of therapeutic gas delivery for SAH treatment. PMID- 29323185 TI - Biogenesis of podosome rosettes through fission. AB - Podosomes are dynamic actin-based membrane protrusions that are important for extracellular matrix degradation and invasive cell motility. Individual podosomes are often found to organize into large rosette-like structures in some types of cells, such as osteoclasts, endothelial cells, Src-transformed fibroblasts, and certain highly invasive cancer cells. In this study, we show that new podosome rosettes arise through one of two mechanisms; de novo assembly or fission of a pre-existing podosome rosette in Src-transformed fibroblasts. Fission is a more efficient way than de novo assembly to generate new podosome rosettes in these cells. Podosome rosettes undergoing fission possess higher motility and a stronger matrix-degrading capability. Podosome rosette fission may be the result of polarized myosin II-mediated contractility of these structures, which is coordinately regulated by myosin light chain kinase and Rho-associated kinase II. Collectively, this study unveils a previously unknown mechanism-fission for the biogenesis of podosome rosettes. PMID- 29323187 TI - Strain effects on rotational property in nanoscale rotation system. AB - This paper presents a study of strain effects on nanoscale rotation system consists of double-walls carbon nanotube and graphene. It is found that the strain effects can be a real-time controlling method for nano actuator system. The strain effects on rotational property as well as the effect mechanism is studied systematically through molecular dynamics simulations, and it obtains valuable conclusions for engineering application of rotational property management of nanoscale rotation system. It founds that the strain effects tune the rotational property by influencing the intertube supporting effect and friction effect of double-walls carbon nanotube, which are two critical factors of rotational performance. The mechanism of strain effects on rotational property is investigated in theoretical level based on analytical model established through lattice dynamics theory. This work suggests great potentials of strain effects for nanoscale real-time control, and provides new ideas for design and application of real-time controllable nanoscale rotation system. PMID- 29323186 TI - Combination of high-fat/high-fructose diet and low-dose streptozotocin to model long-term type-2 diabetes complications. AB - The epidemic of type 2 diabetes mellitus (T2DM) is fueled by added fructose consumption. Here, we thus combined high-fat/high-fructose diet, with multiple low-dose injections of streptozotocin (HF/HF/Stz) to emulate the long-term complications of T2DM. HF/HF/Stz rats, monitored over 56 weeks, exhibited metabolic dysfunctions associated with the different stages of the T2DM disease progression in humans: an early prediabetic phase characterized by an hyperinsulinemic period with modest dysglycemia, followed by a late stage of T2DM with frank hyperglycemia, normalization of insulinemia, marked dyslipidemia, hepatic fibrosis and pancreatic beta-cell failure. Histopathological analyses combined to [18F]-FDG PET imaging further demonstrated the presence of several end-organ long-term complications, including reduction in myocardial glucose utilization, renal dysfunction as well as microvascular neuropathy and retinopathy. We also provide for the first time a comprehensive u-PET whole brain imaging of the changes in glucose metabolic activity within discrete cerebral regions in HF/HF/Stz diabetic rats. Altogether, we developed and characterized a unique non-genetic preclinical model of T2DM adapted to the current diet and lifestyle that recapitulates the major metabolic features of the disease progression, from insulin resistance to pancreatic beta-cell dysfunction, and closely mimicking the target-organ damage occurring in type 2 diabetic patients at advanced stages. PMID- 29323188 TI - A Tet-Off gene expression system for validation of antifungal drug targets in a murine invasive pulmonary aspergillosis model. AB - Aspergillus fumigatus is one of the major causes of invasive pulmonary aspergillosis in immunocompromised patients. Novel antifungal therapy is in urgent need due to emerging resistance and adverse toxicity of current antifungal drugs. Gene products that are essential for Aspergillus viability during infection are attractive drug targets. To characterize these genes in vivo we developed a Tet-Off gene expression system in A. fumigatus, whereby the administration of doxycycline resulted in down regulation of the gene whose expression is under the control of the Tet-Off promoter. We tested the system on two potential drug targets, inosine 5'-monophosphate dehydrogenase (IMPDH) and L ornithine N5-oxygenase (sidA) in a murine invasive pulmonary aspergillosis model. We show that depletion of IMPDH attenuated but did not completely abolish virulence in vivo whereas turning off the expression of sidA, which is required for iron acquisition, resulted in avirulence. We also investigated whether sidA expression could be controlled in a time-dependent manner in mice. Our results demonstrated that timing of doxycycline administration dramatically affects survival rate, suggesting that this genetic system can be used for testing whether an antifungal drug target is critical for fungal growth post-infection. PMID- 29323189 TI - IL-13 in LPS-Induced Inflammation Causes Bcl-2 Expression to Sustain Hyperplastic Mucous cells. AB - Exposure to lipopolysaccharides (LPS) causes extensive neutrophilic inflammation in the airways followed by mucous cell hyperplasia (MCH) that is sustained by the anti-apoptotic protein, Bcl-2. To identify inflammatory factor(s) that are responsible for Bcl-2 expression, we established an organ culture system consisting of airway epithelial tissue from the rat nasal midseptum. The highest Muc5AC and Bcl-2 expression was observed when organ cultures were treated with brochoalveolar lavage (BAL) fluid harvested from rats 10 h post LPS instillation. Further, because BAL harvested from rats depleted of polymorphonuclear cells compared to controls showed increased Bcl-2 expression, analyses of cytokine levels in lavages identified IL-13 as an inducer of Bcl-2 expression. Ectopic IL 13 treatment of differentiated airway epithelial cells increased Bcl-2 and MUC5AC expression in the basal and apical regions of the cells, respectively. When Bcl-2 was blocked using shRNA or a small molecule inhibitor, ABT-263, mucous cell numbers were reduced due to increased apoptosis that disrupted the interaction of Bcl-2 with the pro-apoptotic protein, Bik. Furthermore, intranasal instillation of ABT-263 reduced the LPS-induced MCH in bik +/+ but not bik -/- mice, suggesting that Bik mediated apoptosis in hyperplastic mucous cells. Therefore, blocking Bcl-2 function could be useful in reducing IL-13 induced mucous hypersecretion. PMID- 29323191 TI - Abnormally Low or High Ankle-Brachial Index Is Associated With the Development of Diabetic Retinopathy in Type 2 Diabetes Mellitus. AB - Although some studies have reported an association between peripheral artery disease (PAD) and diabetic retinopathy (DR) in patients with diabetes, whether or not a causal relationship exists is unknown. The aim of this study was to investigate whether PAD, as indicated by an abnormally low or high ankle-brachial index (ABI), is associated with the development of DR in patients with type 2 diabetes mellitus (DM) without DR. We enrolled 414 (221 men and 193 women) patients with type 2 DM who underwent ABI measurements at our outpatient clinic. PAD was defined as an abnormally low (<0.9) or high (>=1.3) ABI in either leg, and DR was defined as being non-proliferative or proliferative. Of the enrolled patients, 69 (16.7%) had an ABI <0.9 or >=1.3. The median follow-up period was 23 (15-40) months, during which 74 (17.9%) patients developed DR. In multivariate analysis, an ABI <0.9 or >=1.3 was independently associated with the development of DR (vs. ABI >=0.9 to <1.3; hazard ratio, 2.186; 95% confidence interval, 1.261 to 3.789; p = 0.005). An abnormal ABI was associated with the development of DR in our patients with type 2 DM without DR. PMID- 29323193 TI - Rapid Thermal Processing to Enhance Steel Toughness. AB - Quenching and Tempering (Q&T) has been utilized for decades to alter steel mechanical properties, particularly strength and toughness. While tempering typically increases toughness, a well-established phenomenon called tempered martensite embrittlement (TME) is known to occur during conventional Q&T. Here we show that short-time, rapid tempering can overcome TME to produce unprecedented property combinations that cannot be attained by conventional Q&T. Toughness is enhanced over 43% at a strength level of 1.7 GPa and strength is improved over 0.5 GPa at an impact toughness of 30 J. We also show that hardness and the tempering parameter (TP), developed by Holloman and Jaffe in 1945 and ubiquitous within the field, is insufficient for characterizing measured strengths, toughnesses, and microstructural conditions after rapid processing. Rapid tempering by energy-saving manufacturing processes like induction heating creates the opportunity for new Q&T steels for energy, defense, and transportation applications. PMID- 29323190 TI - Angiopoietins bind thrombomodulin and inhibit its function as a thrombin cofactor. AB - Angiopoietin-1 (Ang1) and Angiopoietin-2 (Ang2) are ligands for Tie2, an endothelial-specific receptor tyrosine kinase that is an essential regulator of angiogenesis. Here we report the identification, via expression cloning, of thrombomodulin (TM) as another receptor for Ang1 and Ang2. Thrombomodulin is an endothelial cell surface molecule that plays an essential role as a coagulation inhibitor via its function as a cofactor in the thrombin-mediated activation of protein C, an anticoagulant protein, as well as thrombin-activatable fibrinolysis inhibitor (TAFI). Ang1 and Ang2 inhibited the thrombin/TM-mediated generation of activated protein C and TAFI in cultured endothelial cells, and inhibited the binding of thrombin to TM in vitro. Ang2 appears to bind TM with higher affinity than Ang1 and is a more potent inhibitor of TM function. Consistent with a potential role for angiopoietins in coagulation, administration of thrombin to mice rapidly increased plasma Ang1 levels, presumably reflecting release from activated platelets (previously shown to contain high levels of Ang1). In addition, Ang1 levels were significantly elevated in plasma prepared from wound blood, suggesting that Ang1 is released from activated platelets at sites of vessel injury. Our results imply a previously undescribed role for angiopoietins in the regulation of hemostasis. PMID- 29323192 TI - Baseline IL-2 and the AIH score can predict the response to standard therapy in paediatric autoimmune hepatitis. AB - Although autoimmune hepatitis (AIH) can be treated with corticosteroid-based first-line therapy, incomplete remission is associated with progressive liver fibrosis. So far accepted predictors of the subsequent treatment response of AIH patients are lacking. Therefore, we analysed baseline parameters, including iron homeostasis and cytokine levels, in 60 children with paediatric AIH (pAIH). In contrast to adults, elevated serum markers indicating iron overload were not commonly found in children. Therefore, ferritin was not predictive of the treatment response in pAIH. Although baseline immunoglobulins were lower in pAIH children with subsequent complete biochemical remission (BR) upon standard first line therapy, only lower AIH scores (<=16 points) could predict BR upon standard therapy in our training and validation cohorts. Additionally, higher baseline IL 2 and MCP-1/CCL2 levels were associated with BR in a sub-cohort. A combined score of IL-2 level and a simplified AIH score predicted treatment response more precisely than both parameter alone in this sub-cohort. In conclusion, the baseline AIH score could be validated as a predictor of treatment response in pAIH. Additionally, low baseline IL-2 may help identify children who need salvage therapy. This could be important because the use of low-dose IL-2 therapies is being tested in various autoimmune diseases. PMID- 29323195 TI - Gastropod shell size and architecture influence the applicability of methods used to estimate internal volume. AB - Obtaining accurate and reproducible estimates of internal shell volume is a vital requirement for studies into the ecology of a range of shell-occupying organisms, including hermit crabs. Shell internal volume is usually estimated by filling the shell cavity with water or sand, however, there has been no systematic assessment of the reliability of these methods and moreover no comparison with modern alternatives, e.g., computed tomography (CT). This study undertakes the first assessment of the measurement reproducibility of three contrasting approaches across a spectrum of shell architectures and sizes. While our results suggested a certain level of variability inherent for all methods, we conclude that a single measure using sand/water is likely to be sufficient for the majority of studies. However, care must be taken as precision may decline with increasing shell size and structural complexity. CT provided less variation between repeat measures but volume estimates were consistently lower compared to sand/water and will need methodological improvements before it can be used as an alternative. CT indicated volume may be also underestimated using sand/water due to the presence of air spaces visible in filled shells scanned by CT. Lastly, we encourage authors to clearly describe how volume estimates were obtained. PMID- 29323194 TI - Human Mesenchymal Stromal Cell-Derived Extracellular Vesicles Modify Microglial Response and Improve Clinical Outcomes in Experimental Spinal Cord Injury. AB - No current clinical intervention can alter the course of acute spinal cord injury (SCI), or appreciably improve neurological outcome. Mesenchymal stromal cells (MSCs) have been shown to modulate the injury sequelae of SCI largely via paracrine effects, although the mechanisms remain incompletely understood. One potential modality is through secretion of extracellular vesicles (EVs). In this study, we investigate whether systemic administration of EVs isolated from human MSCs (MSCEv) has the potential to be efficacious as an alternative to cell-based therapy for SCI. Additionally, we investigate whether EVs isolated from human MSCs stimulated with pro-inflammatory cytokines have enhanced anti-inflammatory effects when administered after SCI. Immunohistochemistry supported the quantitative analysis, demonstrating a diminished inflammatory response with apparent astrocyte and microglia disorganization in cord tissue up to 10 mm caudal to the injury site. Locomotor recovery scores showed significant improvement among animals treated with MSCEv. Significant increases in mechanical sensitivity threshold were observed in animals treated with EVs from either naive MSC (MSCEvwt) or stimulated MSC (MSCEv+), with a statistically significant increase in threshold for MSCEv+-treated animals when compared to those that received MSCEvwt. In conclusion, these data show that treatment of acute SCI with extracellular vesicles derived from human MSCs attenuates neuroinflammation and improves functional recovery. PMID- 29323196 TI - The Rotation of Microrobot Simplifies 3D Control Inside Microchannels. AB - This paper focuses on the control of rotating helical microrobots inside microchannels. We first use a 50 MUm long and 5 MUm in diameter helical robot to prove that the proximity of the channel walls create a perpendicular force on the robot. This force makes the robot orbit around the channel center line. We also demonstrate experimentally that this phenomenon simplifies the robot control by guiding it on a channel even if the robot propulsion is not perfectly aligned with the channel direction. We then use numerical simulations, validated by real experimental cases, to show different implications on the microrobot control of this orbiting phenomenon. First, the robot can be centered in 3D inside an in plane microchannel only by controlling its horizontal direction (yaw angle). This means that a rotating microrobot can be precisely controlled along the center of a microfluidic channel only by using a standard 2D microscopy technology. Second, the robot horizontal (yaw) and vertical (pitch) directions can be controlled to follow a 3D evolving channel only with a 2D feedback. We believe this could lead to simplify imaging systems for the potential in vivo integration of such microrobots. PMID- 29323197 TI - Outcomes of ureteroscopy miniaturization on tissue damage and tissue hypoxia in a pig model. AB - Miniaturization of ureteroscopy materials is intended to decrease tissue damage. However, tissue hypoxia and the gross and microscopic effects on tissue have not been adequately assessed. We compared the gross and microscopic effects of micro ureteroscopy (m-URS) and conventional ureteroscopy (URS) on the urinary tract. We employed 14 pigs of the Large White race. URS was performed in one of the ureters with an 8/9.8 F ureteroscope, while a 4.85 F m-URS sheath was used in the contralateral ureter. Gross assessment of ureteral wall damage and ureteral orifice damage was performed. For microscopic assessment hematoxylin-eosin staining and immunohistochemistry for detection of tissue hypoxia were conducted. Regarding the macroscopic assessment of ureteral damage, substantial and significant differences were recorded using URS (C = 0.8), but not with m-URS. Microscopic assessment after staining with hematoxylin-eosin revealed greater epithelial desquamation in the URS group (p < 0.05). Pimonidazole staining revealed greater hypoxia in the epithelial cells than in the remainder of the ureteral layers. We conclude that m-URS causes less damage to the ureteral orifice than URS. Histopathological findings show m-URS reduces ureteral epithelial damage compared with conventional ureteroscopy. Both URS and m-URS cause cellular hypoxia. PMID- 29323199 TI - Observation of carrier localization in cubic crystalline Ge2Sb2Te5 by field effect measurement. AB - The tunable disorder of vacancies upon annealing is an important character of crystalline phase-change material Ge2Sb2Te5 (GST). A variety of resistance states caused by different degrees of disorder can lead to the development of multilevel memory devices, which could bring a revolution to the memory industry by significantly increasing the storage density and inspiring the neuromorphic computing. This work focuses on the study of disorder-induced carrier localization which could result in multiple resistance levels of crystalline GST. To analyze the effect of carrier localization on multiple resistant levels, the intrinsic field effect (the change in surface conductance with an applied transverse electric field) of crystalline GST was measured, in which GST films were annealed at different temperatures. The field effect measurement is an important complement to conventional transport measurement techniques. The field effect mobility was acquired and showed temperature activation, a hallmark of carrier localization. Based on the relationship between field effect mobility and annealing temperature, we demonstrate that the annealing shifts the mobility edge towards the valence-band edge, delocalizing more carriers. The insight of carrier transport in multilevel crystalline states is of fundamental relevance for the development of multilevel phase change data storage. PMID- 29323198 TI - Paroxysmal Nocturnal Hemoglobinuria (Pnh): Brain Mri Ischemic Lesions In Neurologically Asymtomatic Patients. AB - This study investigated for the first time brain ischemic involvement in 19 consecutive neurologically asymptomatic PNH patients by non-enhanced cerebral MRI, and by intracranial arterial and venous angio-MRI. Eleven cases (58%, 7 aged <65) showed pathological findings: 9 white matter (WM) abnormalities related to chronic ischemic small vessel disease, 2 a focal abnormality >5 mm, and 5 cases a score >4 by the age-related white matter changes (ARWMC) scale. Compared with age and sex-matched controls (1:2 ratio), patients showed an increased frequency of periventricular WM vascular degeneration (32% versus 5.2%, p = 0.04) and of severe lesions (ARWMC scale score >4) (26% versus 2.6%, p = 0.05), and a higher overall ARWMC scale score (3.5 +/- 1.07 versus 2.0 +/- 0.8, mean +/- SD, p < 0.0001). Notably, vascular abnormalities suspected for prior partial venous thrombosis, were observed in PNH cases only. MRI lesions were not related to blood counts, hemolytic markers, clone size, disease duration, and therapy with eculizumab. Neurological examination was unremarkable in all patients but one (Parkinson disease). Psychiatric assessment revealed a case of generalized anxiety disorder, 1 bipolar disorder type 2, and 1 adjustment disorder. In conclusion, brain MRI may be useful at diagnosis and during the course of the disease to explore subclinical neurological involvement. PMID- 29323200 TI - Heat Transfer Enhancement During Water and Hydrocarbon Condensation on Lubricant Infused Surfaces. AB - Vapor condensation is routinely used as an effective means of transferring heat or separating fluids. Dropwise condensation, where discrete droplets form on the condenser surface, offers a potential improvement in heat transfer of up to an order of magnitude compared to filmwise condensation, where a liquid film covers the surface. Low surface tension fluid condensates such as hydrocarbons pose a unique challenge since typical hydrophobic condenser coatings used to promote dropwise condensation of water often do not repel fluids with lower surface tensions. Recent work has shown that lubricant infused surfaces (LIS) can promote droplet formation of hydrocarbons. In this work, we confirm the effectiveness of LIS in promoting dropwise condensation by providing experimental measurements of heat transfer performance during hydrocarbon condensation on a LIS, which enhances heat transfer by ~450% compared to an uncoated surface. We also explored improvement through removal of noncondensable gases and highlighted a failure mechanism whereby shedding droplets depleted the lubricant over time. Enhanced condensation heat transfer for low surface tension fluids on LIS presents the opportunity for significant energy savings in natural gas processing as well as improvements in thermal management, heating and cooling, and power generation. PMID- 29323201 TI - Landmark detection in 2D bioimages for geometric morphometrics: a multi resolution tree-based approach. AB - The detection of anatomical landmarks in bioimages is a necessary but tedious step for geometric morphometrics studies in many research domains. We propose variants of a multi-resolution tree-based approach to speed-up the detection of landmarks in bioimages. We extensively evaluate our method variants on three different datasets (cephalometric, zebrafish, and drosophila images). We identify the key method parameters (notably the multi-resolution) and report results with respect to human ground truths and existing methods. Our method achieves recognition performances competitive with current existing approaches while being generic and fast. The algorithms are integrated in the open-source Cytomine software and we provide parameter configuration guidelines so that they can be easily exploited by end-users. Finally, datasets are readily available through a Cytomine server to foster future research. PMID- 29323203 TI - An epidemiological study of the risk factors associated with myopia in young adult men in Korea. AB - The prevalence of myopia has been increasing worldwide. Its causes are not completely clear, although genetic and environmental factors are thought to play a role. Data were collected by the Korean Military Manpower Administration. Frequency analysis was used for comparisons of general characteristics. Pearson's chi-square tests and logistic regression analysis were used to verify the correlations between possible risk factors and the prevalence of myopia or high myopia. The prevalence of myopia (50.6-53.0%) and high myopia (11.3-12.9%) increased each year. These tended to be the highest in patients born in spring, and decreased in the following order according to education level: 4- or 6-year university education or more, high school education or less, and 2- to 3-year college education. Moreover, the prevalence of myopia and high myopia was significantly higher in patients <= 60 kg and with a body mass index <= 18.5 kg/m2. The prevalence of high myopia was significantly higher in taller patients (>=175 cm). The prevalence of myopia and high myopia increased each year in Korean young adult men and was associated with birth season, education level, height, weight, and body mass index. Tall, lean men were more likely to have high myopia. PMID- 29323205 TI - Unsupervised Learning and Pattern Recognition of Biological Data Structures with Density Functional Theory and Machine Learning. AB - By introducing the methods of machine learning into the density functional theory, we made a detour for the construction of the most probable density function, which can be estimated by learning relevant features from the system of interest. Using the properties of universal functional, the vital core of density functional theory, the most probable cluster numbers and the corresponding cluster boundaries in a studying system can be simultaneously and automatically determined and the plausibility is erected on the Hohenberg-Kohn theorems. For the method validation and pragmatic applications, interdisciplinary problems from physical to biological systems were enumerated. The amalgamation of uncharged atomic clusters validated the unsupervised searching process of the cluster numbers and the corresponding cluster boundaries were exhibited likewise. High accurate clustering results of the Fisher's iris dataset showed the feasibility and the flexibility of the proposed scheme. Brain tumor detections from low dimensional magnetic resonance imaging datasets and segmentations of high dimensional neural network imageries in the Brainbow system were also used to inspect the method practicality. The experimental results exhibit the successful connection between the physical theory and the machine learning methods and will benefit the clinical diagnoses. PMID- 29323204 TI - Calcium-phosphate complex increased during subchondral bone remodeling affects earlystage osteoarthritis. AB - An activation of osteoclasts and subchondral bone remodeling is a major histologic feature of early-stage osteoarthritis (OA), which can be accompanied by an increase of calcium (Ca) and phosphate (Pi) level in the subchondral milieu. Considering articular cartilage gets most of nutrition from subchondral bone by diffusion, these micro-environmental changes in subchondral bone can affect the physiology of articular chondrocytes. Here, we have shown that Ca is increased and co-localized with Pi in articular cartilage of early-stage OA. The Ca-Pi complex increased the production of MMP-3 and MMP-13 in the hypertrophic chondrocytes, which was dependent on nuclear factor-kappa B (NF-kB), p38 and extracellular signal-regulated kinase (Erk) 1/2 mitogen-activated protein (MAP) kinase and Signal transducer and activator of transcription 3 (STAT3) signaling. The Ca-Pi complexes increased the expression of endocytosis markers, and the inhibition of the formation of the Ca-Pi complex ameliorated the Ca-Pi complex mediated increases of MMPs expression in hypertrophic chondrocytes. Our data provide insight regarding the Ca-Pi complex as a potential catabolic mediator in the subchondral milieu and support the pathogenic role of subchondral bone in the early stages of cartilage degeneration. PMID- 29323206 TI - Effects of Bt cabbage pollen on the honeybee Apis mellifera L. AB - Honeybees may be exposed to insecticidal proteins from transgenic plants via pollen during their foraging activity. Assessing effects of such exposures on honeybees is an essential part of the risk assessment process for transgenic Bacillus thuringiensis (Bt) cabbage. Feeding trials were conducted in a laboratory setting to test for possible effects of Cry1Ba3 cabbage pollen on Italian-derived honeybees Apis mellifera L. Newly emerged A. mellifera were fed transgenic pollen, activated Cry1Ba3 toxin, pure sugar syrup (60% w/v sucrose solution), and non-transgenic cabbage pollen, respectively. Then the effects on survival, pollen consumption, weight, detoxification enzyme activity and midgut enzyme activity of A. mellifera were monitored. The results showed that there were no significant differences in survival, pollen consumption, weight, detoxification enzyme activity among all treatments. No significant differences in the activities of total proteolytic enzyme, active alkaline trypsin-like enzyme and weak alkaline trypsin-like enzyme were observed among all treatments. These results indicate that the side-effects of the Cry1Ba3 cabbage pollen on A. mellifera L. are unlikely. PMID- 29323202 TI - Genome-based classification of micromonosporae with a focus on their biotechnological and ecological potential. AB - There is a need to clarify relationships within the actinobacterial genus Micromonospora, the type genus of the family Micromonosporaceae, given its biotechnological and ecological importance. Here, draft genomes of 40 Micromonospora type strains and two non-type strains are made available through the Genomic Encyclopedia of Bacteria and Archaea project and used to generate a phylogenomic tree which showed they could be assigned to well supported phyletic lines that were not evident in corresponding trees based on single and concatenated sequences of conserved genes. DNA G+C ratios derived from genome sequences showed that corresponding data from species descriptions were imprecise. Emended descriptions include precise base composition data and approximate genome sizes of the type strains. antiSMASH analyses of the draft genomes show that micromonosporae have a previously unrealised potential to synthesize novel specialized metabolites. Close to one thousand biosynthetic gene clusters were detected, including NRPS, PKS, terpenes and siderophores clusters that were discontinuously distributed thereby opening up the prospect of prioritising gifted strains for natural product discovery. The distribution of key stress related genes provide an insight into how micromonosporae adapt to key environmental variables. Genes associated with plant interactions highlight the potential use of micromonosporae in agriculture and biotechnology. PMID- 29323207 TI - Discovery of Hepatotoxic Equivalent Combinatorial Markers from Dioscorea bulbifera tuber by Fingerprint-Toxicity Relationship Modeling. AB - Due to extremely chemical complexity, identification of potential toxicity related constituents from an herbal medicine (HM) still remains challenging. Traditional toxicity-guided separation procedure suffers from time- and labor consumption and neglects the additive effect of multi-components. In this study, we proposed a screening strategy called "hepatotoxic equivalent combinatorial markers (HECMs)" for a hepatotoxic HM, Dioscorea bulbifera tuber (DBT). Firstly, the chemical constituents in DBT extract were globally characterized. Secondly, the fingerprints of DBT extracts were established and their in vivo hepatotoxicities were tested. Thirdly, three chemometric tools including partial least squares regression (PLSR), back propagation-artificial neural network (BP ANN) and cluster analysis were applied to model the fingerprint-hepatotoxicity relationship and to screen hepatotoxicity-related markers. Finally, the chemical combination of markers was subjected to hepatotoxic equivalence evaluation. A total of 40 compounds were detected or tentatively characterized. Two diterpenoid lactones, 8-epidiosbulbin E acetate (EEA) and diosbulbin B (DIOB), were discovered as the most hepatotoxicity-related markers. The chemical combination of EEA and DIOB, reflecting the whole hepatotoxicity of original DBT extract with considerable confidential interval, was verified as HECMs for DBT. The present study is expected not only to efficiently discover hepatotoxicity-related markers of HMs, but also to rationally evaluate/predict the hepatotoxicity of HMs. PMID- 29323209 TI - Hydrological simulation and uncertainty analysis using the improved TOPMODEL in the arid Manas River basin, China. AB - Understanding the mechanism of complicated hydrological processes is important for sustainable management of water resources in an arid area. This paper carried out the simulations of water movement for the Manas River Basin (MRB) using the improved semi-distributed Topographic hydrologic model (TOPMODEL) with a snowmelt model and topographic index algorithm. A new algorithm is proposed to calculate the curve of topographic index using internal tangent circle on a conical surface. Based on the traditional model, the improved indicator of temperature considered solar radiation is used to calculate the amount of snowmelt. The uncertainty of parameters for the TOPMODEL model was analyzed using the generalized likelihood uncertainty estimation (GLUE) method. The proposed model shows that the distribution of the topographic index is concentrated in high mountains, and the accuracy of runoff simulation has certain enhancement by considering radiation. Our results revealed that the performance of the improved TOPMODEL is acceptable and comparable to runoff simulation in the MRB. The uncertainty of the simulations resulted from the parameters and structures of model, climatic and anthropogenic factors. This study is expected to serve as a valuable complement for widely application of TOPMODEL and identify the mechanism of hydrological processes in arid area. PMID- 29323208 TI - Composition of salivary microbiota in elderly subjects. AB - Frailty is gaining attention worldwide with the aging of society. Despite the potential lethality and multiple signs and symptoms in affected individuals, preclinical detection of early manifestations leading to frailty syndrome have not been established. We speculated that the composition of the oral microbiota is associated with general frailty, as well as a relationship between gut microbiota and general health condition. In the present study, we investigated the salivary microbiota composition in samples from healthy and frail elderly individuals using 16S rRNA sequencing analysis for characterization. We found a significant difference in diversity between elderly individuals living in a nursing home (EN) and healthy control (HC) subjects, as well as in the microbiota composition at the phyla level. A supervised orthogonal partial least squared discriminant analysis (OPLS-DA) revealed a significant difference in clear classification trend between the EN and HC groups, with all observations falling within the Hotellings T2 (0.95) ellipse, with model fitness parameters of R 2(cum) = 0.937 and Q 2(cum) = 0.888, respectively. In addition, the score plots by unsupervised principal component analysis (PCA) showed a clear classification trend in both groups. Our findings suggest that general frailty is associated with oral microbiota composition and formation. PMID- 29323211 TI - Single-pixel imaging with Morlet wavelet correlated random patterns. AB - Single-pixel imaging is an indirect imaging technique which utilizes simplified optical hardware and advanced computational methods. It offers novel solutions for hyper-spectral imaging, polarimetric imaging, three-dimensional imaging, holographic imaging, optical encryption and imaging through scattering media. The main limitations for its use come from relatively high measurement and reconstruction times. In this paper we propose to reduce the required signal acquisition time by using a novel sampling scheme based on a random selection of Morlet wavelets convolved with white noise. While such functions exhibit random properties, they are locally determined by Morlet wavelet parameters. The proposed method is equivalent to random sampling of the properly selected part of the feature space, which maps the measured images accurately both in the spatial and spatial frequency domains. We compare both numerically and experimentally the image quality obtained with our sampling protocol against widely-used sampling with Walsh-Hadamard or noiselet functions. The results show considerable improvement over the former methods, enabling single-pixel imaging at low compression rates on the order of a few percent. PMID- 29323210 TI - Anticancer potentiality of lignan rich fraction of six Flaxseed cultivars. AB - The objective of our study is to highlight the therapeutic effect and mechanism of action by which purified Flaxseed hydrolysate (PFH) which is a lignan rich fraction exerts its anticancer activity on a human breast cancer cell line (T47D) and in mice bearing tumor. HPLC analysis of PFH of six flaxseed cultivars had shown that PFH of the cultivar Giza 9 (PFH-G9) contains the highest concentration of SDG (81.64 mg/g). The in vitro cytotoxic potentiality of PFH's of six flaxseed cultivars was screened against a panel of human cancer cell lines. PFH -G9 showed the most significant cytotoxic activity against ER-receptor positive breast cell lines MCF7 and T47D with IC50 13.8 and 15.8 ug/ml, respectively. Moreover, PFH-G9 reduced the expression of the metastasis marker, 1-alpha, metalloproteinases and vascular endothelial growth factor (VEGF), one of the most potent stimulators of angiogenesis, while it increased the caspase-3 dependent apoptosis. Our study also showed that dietary intake of 10% of Giza 9 Flaxseeds (FS), fixed oil (FSO) or Flax meal (FSM) twice daily for 3 weeks in mice-bearing solid Ehrlich ascites carcinoma (EAC) resulted in reducing the tumor volume, the expression of estrogen, insulin growth factor, progesterone, VEGF and MMP-2, but enhanced expression of caspase-3. PMID- 29323213 TI - High-temperature quantum oscillations of the Hall resistance in bulk Bi2Se3. AB - Helically spin-polarized Dirac fermions (HSDF) in protected topological surface states (TSS) are of high interest as a new state of quantum matter. In three dimensional (3D) materials with TSS, electronic bulk states often mask the transport properties of HSDF. Recently, the high-field Hall resistance and low field magnetoresistance indicate that the TSS may coexist with a layered two dimensional electronic system (2DES). Here, we demonstrate quantum oscillations of the Hall resistance at temperatures up to 50 K in nominally undoped bulk Bi2Se3 with a high electron density n of about 2.1019 cm-3. From the angular and temperature dependence of the Hall resistance and the Shubnikov-de Haas oscillations we identify 3D and 2D contributions to transport. Angular resolved photoemission spectroscopy proves the existence of TSS. We present a model for Bi2Se3 and suggest that the coexistence of TSS and 2D layered transport stabilizes the quantum oscillations of the Hall resistance. PMID- 29323212 TI - Multimodal tumor-homing chitosan oligosaccharide-coated biocompatible palladium nanoparticles for photo-based imaging and therapy. AB - Palladium, a near-infrared plasmonic material has been recognized for its use in photothermal therapy as an alternative to gold nanomaterials. However, its potential application has not been explored well in biomedical applications. In the present study, palladium nanoparticles were synthesized and the surface of the particles was successfully modified with chitosan oligosaccharide (COS), which improved the biocompatibility of the particles. More importantly, the particles were functionalized with RGD peptide, which improves particle accumulation in MDA-MB-231 breast cancer cells and results in enhanced photothermal therapeutic effects under an 808-nm laser. The RGD peptide-linked, COS-coated palladium nanoparticles (Pd@COS-RGD) have good biocompatibility, water dispersity, and colloidal and physiological stability. They destroy the tumor effectively under 808-nm laser illumination at 2 W cm-2 power density. Further, Pd@COS-RGD gives good amplitude of photoacoustic signals, which facilitates the imaging of tumor tissues using a non-invasive photoacoustic tomography system. Finally, the fabricated Pd@COS-RGD acts as an ideal nanotheranostic agent for enhanced imaging and therapy of tumors using a non-invasive near-infrared laser. PMID- 29323214 TI - Real-time Humidity Sensor Based on Microwave Resonator Coupled with PEDOT:PSS Conducting Polymer Film. AB - A real-time humidity sensor based on a microwave resonator coupled with a poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) conducting polymer (CP) film is proposed in this paper. The resonator is patterned on a printed circuit board and is excited by electromagnetic field coupling. To enhance the sensitivity of the sensor, the CP film is located in the area with the strongest electric field in the resonator. To investigate the performance, the proposed sensor is placed alongside a reference sensor in a humidity chamber, and humidity is injected at room temperature. The experimental results indicate that the electrical properties of the resonator with the CP film, such as the transmission coefficient (S 21) and resonance frequency, change with the relative humidity (RH). Specifically, as the RH changes from 5% to 80%, S 21 and the resonance frequency change simultaneously. Moreover, the proposed sensor exhibits great repeatability in the middle of the sensing range, which is from 40% to 60% RH. Consequently, our resonator coupled with the CP film can be used as a real time humidity-sensing device in the microwave range, where various radio frequency devices are in use. PMID- 29323215 TI - Green tea extract attenuates LPS-induced retinal inflammation in rats. AB - Inflammation is in a wide spectrum of retinal diseases, causing irreversible blindness and visual impairment. We have previously demonstrated that Green Tea Extract (GTE) is a potent anti-inflammatory agent for anterior uveitis. Here we investigated the anti-inflammatory effect of GTE on lipopolysaccharides (LPS) induced retinal inflammation in rats and explored the underlying mechanism. Adult rats were injected with LPS and GTE was administered intra-gastrically at 2, 8, 26 and 32 hours post-injection. Staining of whole-mount retina showed that the number of activated microglia cells was significantly increased at 48 hours post injection, which was suppressed after GTE treatment in a dose-dependent manner. Activation of astrocytes and Muller glia in the retina was also suppressed after GTE treatment. Meanwhile, GTE reduced the expression of pro-inflammatory cytokines including IL-1beta, TNF-alpha and IL-6 in retina and vitreous humor. These anti-inflammatory effects were associated with a reduced phosphorylation of STAT3 and NF-kappaB in the retina. Furthermore, the surface receptor of EGCG, 67LR, was localized on the neurons and glia in the retina. These findings demonstrate that GTE is an effective agent in suppressing LPS-induced retinal inflammation, probably through its potent anti-oxidative property and a receptor mediated action on transcription factors that regulate production of pro inflammatory cytokines. PMID- 29323216 TI - Characterization of isoprene-derived secondary organic aerosols at a rural site in North China Plain with implications for anthropogenic pollution effects. AB - Isoprene is the most abundant non-methane volatile organic compound (VOC) and the largest contributor to secondary organic aerosol (SOA) burden on a global scale. In order to examine the influence of high concentrations of anthropogenic pollutants on isoprene-derived SOA (SOA i ) formation, summertime PM2.5 filter samples were collected with a three-hour sampling interval at a rural site in the North China Plain (NCP), and determined for SOA i tracers and other chemical species. RO2+NO pathway derived 2-methylglyceric acid presented a relatively higher contribution to the SOA i due to the high-NOx (~20 ppb) conditions in the NCP that suppressed the reactive uptake of RO2+HO2 reaction derived isoprene epoxydiols. Compared to particle acidity and water content, sulfate plays a dominant role in the heterogeneous formation process of SOA i . Diurnal variation and correlation of 2-methyltetrols with ozone suggested an important effect of isoprene ozonolysis on SOA i formation. SOA i increased linearly with levoglucosan during June 10-18, which can be attributed to an increasing emission of isoprene caused by the field burning of wheat straw and a favorable aqueous SOA formation during the aging process of the biomass burning plume. Our results suggested that isoprene oxidation is highly influenced by intensive anthropogenic activities in the NCP. PMID- 29323217 TI - Node of Ranvier as an Array of Bio-Nanoantennas for Infrared Communication in Nerve Tissue. AB - Electromagnetic radiation, in the visible and infrared spectrum, is increasingly being investigated for its possible role in the most evolved brain capabilities. Beside experimental evidence of electromagnetic cellular interactions, the possibility of light propagation in the axon has been recently demonstrated using computational modelling, although an explanation of its source is still not completely understood. We studied electromagnetic radiation onset and propagation at optical frequencies in myelinated axons, under the assumption that ion channel currents in the node of Ranvier behave like an array of nanoantennas emitting in the wavelength range from 300 to 2500 nm. Our results suggest that the wavelengths below 1600 nm are most likely to propagate throughout myelinated segments. Therefore, a broad wavelength window exists where both generation and propagation could happen, which in turn raises the possibility that such a radiation may play some role in neurotransmission. PMID- 29323218 TI - Scanning electron microscopy assessment of the Descemet membrane interface during DMEK graft preparation. AB - We set out to determine microscopic characteristics of the Descemet membrane interface during Descemet membrane endothelial keratoplasty (DMEK) graft preparation. Ten corneas were partially prepared, preserving half of the Descemet membrane attached to the stroma to enable visualisation of the Descemet-stroma interface. This tissue was prepared for viewing with a scanning electron microscope. The Descemet-stroma interface was categorised into three regions: centre, mid-periphery and periphery. We classified adhesions in these regions as either minor thread-like adhesions or major bridge-like adhesions with stromal detachments. We found a region-specific differentiation of the Descemet-stroma morphology. The presence of minor (P = 0,0001) and major (P = 0,0001) adhesions at the explored regions of the Descemet-stroma interface were found to be statistically significant. Fibrotic linear adhesions were predominant in the centre and mid-periphery, whereas the larger bridge-like adhesions were found mainly in the periphery. In addition, we observed a positive correlation between the size of the adhesions and the presence of ruptures in the underlying stromal bed. Viewing of the Descemet-stroma interface with electron microscopy reveals morphological differences between the centre of a graft and its periphery. These findings are of potential clinical relevance in terms of developing a better understanding of tissue behaviour during graft preparation. PMID- 29323219 TI - Electromagnetic Radiation Disturbed the Photosynthesis of Microcystis aeruginosa at the Proteomics Level. AB - Photosynthesis of Microcystis aeruginosa under Electromagnetic Radiation (1.8 GHz, 40 V/m) was studied by using the proteomics. A total of 30 differentially expressed proteins, including 15 up-regulated and 15 down-regulated proteins, were obtained in this study. The differentially expressed proteins were significantly enriched in the photosynthesis pathway, in which the protein expression levels of photosystems II cytochrome b559 alpha subunit, cytochrome C550, PsbY, and F-type ATP synthase (a, b) decreased. Our results indicated that electromagnetic radiation altered the photosynthesis-related protein expression levels, and aimed at the function of photosynthetic pigments, photosystems II potential activity, photosynthetic electron transport process, and photosynthetic phosphorylation process of M. aeruginosa. Based on the above evidence, that photoreaction system may be deduced as a target of electromagnetic radiation on the photosynthesis in cyanobacteria; the photoreaction system of cyanobacteria is a hypothetical "shared target effector" that responds to light and electromagnetic radiation; moreover, electromagnetic radiation does not act on the functional proteins themselves but their expression processes. PMID- 29323220 TI - An efficient, flexible perovskite solar module exceeding 8% prepared with an ultrafast PbI2 deposition rate. AB - Large-area, pinhole-free CH3NH3PbI3 perovskite thin films were successfully fabricated on 5 cm * 5 cm flexible indium tin oxide coated polyethylene naphthalate (ITO-PEN) substrates through a sequential evaporation/spin-coating deposition method in this research. The influence of the rate-controlled evaporation of PbI2 films on the quality of the perovskite layer and the final performance of the planar-structured perovskite solar cells were investigated. An ultrafast evaporation rate of 20 A s-1 was found to be most beneficial for the conversion of PbI2 to CH3NH3PbI3 perovskite. Based on this high-quality CH3NH3PbI3 film, a resultant flexible perovskite solar sub-module (active area of 16 cm2) with a power conversion efficiency of more than 8% and a 1.2 cm2 flexible perovskite solar cell with a power conversion efficiency of 12.7% were obtained. PMID- 29323221 TI - Chemotherapy plus Panitumumab Versus Chemotherapy plus Bevacizumab in Metastatic Colorectal Cancer: A Meta-analysis. AB - Panitumumab and bevacizumab have been widely used in combination with chemotherapy for patients with wild type RAS metastatic colorectal cancer (mCRC). Whether panitumumab or bevacizumab was the optimal option remained controversial. Thus, we conducted a meta-anaylsis to evaluate chemotherapy plus panitumumab (C + P) versus chemotherapy plus bevacizumab (C + B) in wild type RAS mCRC. Electronic databases including PubMed, Embase, and Web of Science, Cochrane Library, ClinicalTrials.gov, were searched. This meta-analysis estimated the progression free survival (PFS), overall survival (OS), overall response rate (ORR) and adverse events (AEs). Three randomized controlled trials with a total number of 577 patients were included. In wild type RAS population, PFS [hazard ratio (HR) = 0.96; 95% confidence interval (CI), 0.76 to 1.15] and OS (HR = 0.90; 95% CI, 0.54 to 1.27) and ORR [relative ratio (RR) = 2.06; 95% CI, 0.86 to 4.90] appeared similar between the two treatments, the incidence of AEs slightly increased (RR = 1.16; 95% CI 1.08 to 1.26). In conclusion, there was insufficient evidence to precisely conclude that combination treatment of C + P had an improved efficacy compared with C + B. Further large-scale and better-designed clinical trials are still needed to evaluate the combination treatment of C + P in patients with wild type RAS mCRC. PMID- 29323223 TI - On the efficiency of nature-inspired metaheuristics in expensive global optimization with limited budget. AB - Global optimization problems where evaluation of the objective function is an expensive operation arise frequently in engineering, decision making, optimal control, etc. There exist two huge but almost completely disjoint communities (they have different journals, different conferences, different test functions, etc.) solving these problems: a broad community of practitioners using stochastic nature-inspired metaheuristics and people from academia studying deterministic mathematical programming methods. In order to bridge the gap between these communities we propose a visual technique for a systematic comparison of global optimization algorithms having different nature. Results of more than 800,000 runs on 800 randomly generated tests show that both stochastic nature-inspired metaheuristics and deterministic global optimization methods are competitive and surpass one another in dependence on the available budget of function evaluations. PMID- 29323222 TI - A triangle study of human, instrument and bioelectronic nose for non-destructive sensing of seafood freshness. AB - Because the freshness of seafood determines its consumer preference and food safety, the rapid monitoring of seafood deterioration is considered essential. However, the conventional analysis of seafood deterioration using chromatography instruments and bacterial colony counting depends on time-consuming and food destructive treatments. In this study, we demonstrate a non-destructive and rapid food freshness monitoring system by a triangular study of sensory evaluation, gas chromatography-mass spectroscopy (GC-MS), and a bioelectronic nose. The sensory evaluation indicated that the acceptability and flavor deteriorated gradually during post-harvest storage (4 degrees C) for 6 days. The GC-MS analysis recognized the reduction of freshness by detecting a generation of dimethyl sulfide (DMS) from the headspace of oyster in a refrigerator (4 degrees C) at 4 days post-harvest. However, the bioelectronic nose incorporating human olfactory receptor peptides with the carbon nanotube field-effect transistor sensed trimethylamine (TMA) from the oyster at 2 days post-harvest with suggesting early recognition of oysters' quality and freshness deterioration. Given that the bacterial species producing DMS or TMA along with toxins were found in the oyster, the bacterial contamination-driven food deterioration is rapidly monitored using the bioelectronic nose with a targeted non-destructive freshness marker. PMID- 29323224 TI - X-ray diffraction tomography with limited projection information. AB - X-ray diffraction tomography (XDT) records the spatially-resolved X-ray diffraction profile of an extended object. Compared to conventional transmission based tomography, XDT displays high intrinsic contrast among materials of similar electron density and improves the accuracy in material identification thanks to the molecular structural information carried by diffracted photons. However, due to the weak diffraction signal, a tomographic scan covering the entire object typically requires a synchrotron facility to make the acquisition time more manageable. Imaging applications in medical and industrial settings usually do not require the examination of the entire object. Therefore, a diffraction tomography modality covering only the region of interest (ROI) and subsequent image reconstruction techniques with truncated projections are highly desirable. Here we propose a table-top diffraction tomography system that can resolve the spatially-variant diffraction form factor from internal regions within extended samples. We demonstrate that the interior reconstruction maintains the material contrast while reducing the imaging time by 6 folds. The presented method could accelerate the acquisition of XDT and be applied in portable imaging applications with a reduced radiation dose. PMID- 29323225 TI - Frequent implementation of interventions may increase HIV infections among MSM in China. AB - Intervention measures among men who have sex with men (MSM) are usually designed to reduce the frequency of high risk behaviors (within-community level), but unfortunately may change the contact network and consequently increase the opportunity for them to have sex with new partners (between-community level). A multi-community periodic model on complex network is proposed to study the two side effects of interventions on HIV transmission among MSM in China, in which the wanning process of the impacts of interventions are modelled. The basic reproduction number for the multi-community periodic system is defined and calculated numerically. Based on the number of annual reported HIV/AIDS cases among MSM in China, the unknown parameters are estimated by using MCMC method and the basic reproduction number is estimated as 3.56 (95%CI [3.556, 3.568]). Our results show that strong randomness of the community-connection networks leads to more new infections and more HIV/AIDS cases. Moreover, main conclusion indicates that implementation of interventions may induce more new infections, depending on relative level of between- and within-community impacts, and the frequency of implementation of interventions. The findings can help to guide the policy maker to choose the appropriate intervention measures, and to implement the interventions with proper frequency. PMID- 29323226 TI - Lateral and Basal Amygdala Account for Opposite Behavioral Responses during the Long-Term Expression of Fearful Memories. AB - Memories of fearful events can be maintained throughout the lifetime of animals. Here we showed that lesions of the lateral nucleus (LA) performed shortly after training impaired the retention of long-term memories, assessed by the concomitant measurement of two dissociable defensive responses, freezing and avoidance in rats. Strikingly, when LA lesions were performed four weeks after training, rats did not show freezing to a learned threat stimulus, but they were able to direct their responses away from it. Similar results were found when the central nucleus (CeA) was lesioned four weeks after training, whereas lesions of the basal nucleus (BA) suppressed avoidance without affecting freezing. LA and BA receive parallel inputs from the auditory cortex, and optogenetic inhibition of these terminals hampered both freezing and avoidance. We therefore propose that, at variance with the traditional serial flow of information model, long-term fearful memories recruit two parallel circuits in the amygdala, one relying on the LA-to-CeA pathway and the other relying solely on BA, which operate independently and mediate distinct defensive responses. PMID- 29323227 TI - Rapid Biochemical Mixture Screening by Three-Dimensional Patterned Multifunctional Substrate with Ultra-Thin Layer Chromatography (UTLC) and Surface Enhanced Raman Scattering (SERS). AB - We present a three-dimensional patterned (3DP) multifunctional substrate with the functions of ultra-thin layer chromatography (UTLC) and surface enhanced Raman scattering (SERS), which simultaneously enables mixture separation, target localization and label-free detection. This multifunctional substrate is comprised of a 3DP silicon nanowires array (3DP-SiNWA), decorated with silver nano-dendrites (AgNDs) atop. The 3DP-SiNWA is fabricated by a facile photolithographic process and low-cost metal assisted chemical etching (MaCE) process. Then, the AgNDs are decorated onto 3DP-SiNWA by a wet chemical reduction process, obtaining 3DP-AgNDs@SiNWA multifunctional substrates. With various patterns designed on the substrates, the signal intensity could be maximized by the excellent confinement and concentrated effects of patterns. By using this 3DP AgNDs@SiNWA substrate to scrutinize the mixture of two visible dyes, the individual target could be recognized and further boosted the Raman signal of target 15.42 times comparing to the un-patterned AgNDs@SiNWA substrate. Therefore, such a three-dimensional patterned multifunctional substrate empowers rapid mixture screening, and can be readily employed in practical applications for biochemical assays, food safety and other fields. PMID- 29323228 TI - Relationships between type of pain and work participation in people with long standing spinal cord injury: results from a cross-sectional study. AB - STUDY DESIGN: Multicentre, cross-sectional study. OBJECTIVES: To describe the relationships between the presence of (different types of) pain and participation in paid work in people with long-standing spinal cord injury (SCI). Furthermore, the associations of pain-related work limitations, age, gender, relationship, education, lesion level, and time since injury (TSI) with work participation (WP) were investigated. SETTING: The Netherlands. METHODS: Individuals (n = 265) with SCI for >= 10 years were included. Data were collected through a structured consultation with a rehabilitation physician and self-report questionnaire. Descriptive statistics and logistic regression analysis were performed. RESULTS: Median age of participants was 47.9 years, median time since injury was 22 years, 73% were male, 69% had complete SCI and 59% had paraplegia, 50% had paid work, 63% reported musculoskeletal pain, 49% reported neuropathic pain, and 31% reported other pain. Self-reported pain-related work limitations were significantly (V = 0.26 and V = 0.27) related to WP. In bivariable logistic regression analyses, no statistically significant relationships between type of pain and WP were observed. Younger age (OR=0.96), male gender (OR=0.52), a stable relationship (OR = 1.70), and shorter time since SCI (OR = 0.97) were significantly associated with a higher chance of being employed. Multivariable analysis confirmed these findings and in addition showed a higher level of education to be positively related with WP. CONCLUSION: Age, gender, relationship, education, TSI and self-reported work limitations showed a relationship with WP. Different types of pain were unrelated to WP. SPONSORSHIP: Fonds NutsOHRA through the Dutch Organization for Health Research and Development (ZonMw), Project number 89000006. PMID- 29323229 TI - Facile synthesis of TiO2/ZrO2 nanofibers/nitrogen co-doped activated carbon to enhance the desalination and bacterial inactivation via capacitive deionization. AB - Capacitive deionization, as a second generation electrosorption technique to obtain water, is one of the most promising water desalination technologies. Yet; in order to achieve high CDI performance, a well-designed structure of the electrode materials is needed, and is in high demand. Here, a novel composite nitrogen-TiO2/ZrO2 nanofibers incorporated activated carbon (NACTZ) is synthesized for the first time with enhanced desalination efficiency as well as disinfection performance towards brackish water. Nitrogen and TiO2/ZrO2 nanofibers are used as the support of activated carbon to improve its low capacitance and hydrophobicity, which had dramatically limited its adequacy during the CDI process. Importantly, the as-fabricated NACTZ nanocomposite demonstrates enhanced electrochemical performance with significant specific capacitance of 691.78 F g-1, low internal resistance and good cycling stability. In addition, it offers a high capacitive deionization performance of NACTZ yield with electrosorptive capacity of 3.98 mg g-1, and, good antibacterial effects as well. This work will provide an effective solution for developing highly performance and low-cost design for CDI electrode materials. PMID- 29323230 TI - Developing an in silico minimum inhibitory concentration panel test for Klebsiella pneumoniae. AB - Antimicrobial resistant infections are a serious public health threat worldwide. Whole genome sequencing approaches to rapidly identify pathogens and predict antibiotic resistance phenotypes are becoming more feasible and may offer a way to reduce clinical test turnaround times compared to conventional culture-based methods, and in turn, improve patient outcomes. In this study, we use whole genome sequence data from 1668 clinical isolates of Klebsiella pneumoniae to develop a XGBoost-based machine learning model that accurately predicts minimum inhibitory concentrations (MICs) for 20 antibiotics. The overall accuracy of the model, within +/-1 two-fold dilution factor, is 92%. Individual accuracies are >=90% for 15/20 antibiotics. We show that the MICs predicted by the model correlate with known antimicrobial resistance genes. Importantly, the genome-wide approach described in this study offers a way to predict MICs for isolates without knowledge of the underlying gene content. This study shows that machine learning can be used to build a complete in silico MIC prediction panel for K. pneumoniae and provides a framework for building MIC prediction models for other pathogenic bacteria. PMID- 29323231 TI - Mice deficient in the Shmt2 gene have mitochondrial respiration defects and are embryonic lethal. AB - Accumulation of somatic mutations in mitochondrial DNA (mtDNA) has been proposed to be responsible for human aging and age-associated mitochondrial respiration defects. However, our previous findings suggested an alternative hypothesis of human aging-that epigenetic changes but not mutations regulate age-associated mitochondrial respiration defects, and that epigenetic downregulation of nuclear coded genes responsible for mitochondrial translation [e.g., glycine C acetyltransferase (GCAT), serine hydroxymethyltransferase 2 (SHMT2)] is related to age-associated respiration defects. To examine our hypothesis, here we generated mice deficient in Gcat or Shmt2 and investigated whether they have respiration defects and premature aging phenotypes. Gcat-deficient mice showed no macroscopic abnormalities including premature aging phenotypes for up to 9 months after birth. In contrast, Shmt2-deficient mice showed embryonic lethality after 13.5 days post coitum (dpc), and fibroblasts obtained from 12.5-dpc Shmt2 deficient embryos had respiration defects and retardation of cell growth. Because Shmt2 substantially controls production of N-formylmethionine-tRNA (fMet-tRNA) in mitochondria, its suppression would reduce mitochondrial translation, resulting in expression of the respiration defects in fibroblasts from Shmt2-deficient embryos. These findings support our hypothesis that age-associated respiration defects in fibroblasts of elderly humans are caused not by mtDNA mutations but by epigenetic regulation of nuclear genes including SHMT2. PMID- 29323232 TI - Comparison of Bladder Carcinogens in the Urine of E-cigarette Users Versus Non E cigarette Using Controls. AB - Electronic cigarette (EC) use is gaining popularity as a substitute for conventional smoking due to the perception and evidence it represents a safer alternative. In contrast to the common perception amongst users that ECs represent no risk initial studies have revealed a complex composition of e cigarette liquids. Conventional cigarette smoking is a known risk factor for developing bladder cancer and prior reports raise concern some of those causative compounds may exist in EC liquids or vapor. Urine samples were collected from 13 e-cigarette using subjects and 10 non e-cigarette using controls. Five known bladder carcinogens that are either present in conventional cigarettes, products of combustion, or solvents believed to be used in some e-cigarette formulations were quantified by liquid chromatography - mass spectrometry (LC-MS). Analysis of e-cigarette user urine revealed the presence of two carcinogenic compounds, o toluidine and 2-naphthylamine, at a mean 2.3 and 1.3 fold higher concentration (p value of 0.0013 and 0.014 respectively). Many of these subjects (9/13) were long term nonsmokers (>12 months). Further study is needed to clarify the safety profile of e-cigarettes and their contribution to the development of bladder cancer given the greater concentration of carcinogenic aromatic amines in the urine of e-cigarette users. PMID- 29323233 TI - Graphene analogue in (111)-oriented BaBiO3 bilayer heterostructures for topological electronics. AB - Topological electronics is a new field that uses topological charges as current carrying degrees of freedom. For topological electronics applications, systems should host topologically distinct phases to control the topological domain boundary through which the topological charges can flow. Due to their multiple Dirac cones and the pi-Berry phase of each Dirac cone, graphene-like electronic structures constitute an ideal platform for topological electronics; graphene can provide various topological phases when incorporated with large spin-orbit coupling and mass-gap tunability via symmetry-breaking. Here, we propose that a (111)-oriented BaBiO3 bilayer (BBL) sandwiched between large-gap perovskite oxides is a promising candidate for topological electronics by realizing a gap tunable, and consequently a topology-tunable, graphene analogue. Depending on how neighboring perovskite spacers are chosen, the inversion symmetry of the BBL heterostructure can be either conserved or broken, leading to the quantum spin Hall (QSH) and quantum valley Hall (QVH) phases, respectively. BBL sandwiched by ferroelectric compounds enables switching of the QSH and QVH phases and generates the topological domain boundary. Given the abundant order parameters of the sandwiching oxides, the BBL can serve as versatile topological building blocks in oxide heterostructures. PMID- 29323234 TI - Caveolin 1 Promotes Renal Water and Salt Reabsorption. AB - Caveolin-1 (Cav1) is essential for the formation of caveolae. Little is known about their functional role in the kidney. We tested the hypothesis that caveolae modulate renal salt and water reabsorption. Wild-type (WT) and Cav1-deficient (Cav1-/-) mice were studied. Cav1 expression and caveolae formation were present in vascular cells, late distal convoluted tubule and principal connecting tubule and collecting duct cells of WT but not Cav1-/- kidneys. Urinary sodium excretion was increased by 94% and urine flow by 126% in Cav1-/- mice (p < 0.05). A decrease in activating phosphorylation of the Na-Cl cotransporter (NCC) of the distal convoluted tubule was recorded in Cav1-/- compared to WT kidneys (-40%; p < 0.05). Isolated intrarenal arteries from Cav1-/- mice revealed a fourfold reduction in sensitivity to phenylephrine (p < 0.05). A significantly diminished maximal contractile response (-13%; p < 0.05) was suggestive of enhanced nitric oxide (NO) availability. In line with this, the abundance of endothelial NO synthase (eNOS) was increased in Cav1-/- kidneys +213%; p < 0.05) and cultured caveolae-deprived cells showed intracellular accumulation of eNOS, compared to caveolae-intact controls. Our results suggest that renal caveolae help to conserve water and electrolytes via modulation of NCC function and regulation of vascular eNOS. PMID- 29323235 TI - The value of narrow band imaging in diagnosis of head and neck cancer: a meta analysis. AB - Head and neck cancer is difficult to diagnose early. We aimed to estimate the diagnosis value of narrow band imaging(NBI) in head and neck cancers. We identified relevant studies through a search of PubMed, Embase and the Cochrane Library. We used a random effect model. Subgroup analysis and meta-regression analysis were performed to estimate the factors which may influence the sensitivity and specificity of the NBI. We included 25 studies with total 6187 lesions. The pooled sensitivity, specificity, positive likelihood rate, negative likelihood rate and diagnostic odds ratios of NBI were 88.5%, 95.6%, 12.33, 0.11 and 121.26, respectively. The overall area under the curve of SROC was 96.94%. The location, type of assessment, type of endoscope system and high definition were not significant sources of heterogeneity (P > 0.05). However, magnification may be related to the source of heterogeneity (P = 0.0065). Therefore, NBI may be a promising endoscopic tool in the diagnosis of head and neck cancer. PMID- 29323237 TI - Racial Differences in Four Leukemia Subtypes: Comprehensive Descriptive Epidemiology. AB - : Leukemia is a malignant progressive disease and has four major subtypes. Different racial groups differ significantly in multiple aspects. Our goal is to systematically and comprehensively quantify racial differences in leukemia. The SEER database is analyzed, and comprehensive descriptive analysis is provided for the four major subtypes, namely ALL (acute lymphoblastic leukemia), CLL (chronic lymphoblastic leukemia), AML (acute myeloid leukemia), and CML (chronic myeloid leukemia), and for two age groups (<=14 and >14) separately. The racial groups studied include NHW (non-Hispanic White), HW (Hispanic White), BL (Black), and API (Asian and Pacific Islander). Univariate and multivariate analyses are conducted to quantify racial differences in patients' characteristics, incidence, and survival. For patients' characteristics, significant racial differences are observed in gender, age at diagnosis, diagnosis era, using radiation for treatment, registry, cancer history, and histology type. For incidence, significant racial differences are observed, and the patterns vary across subtypes, gender, and age groups. For most of the subtypes and gender and age groups, Blacks have the worst five-year survival, and significant racial differences exist. This study provides a comprehensive epidemiologic description of racial differences for the four major leukemia subtypes in the U.S. POPULATION: PMID- 29323236 TI - Molecular determinants of Ca2+ sensitivity at the intersubunit interface of the BK channel gating ring. AB - The large-conductance calcium-activated K+ (BK) channel contains two intracellular tandem Ca2+-sensing RCK domains (RCK1 and RCK2), which tetramerize into a Ca2+ gating ring that regulates channel opening by conformational expansion in response to Ca2+ binding. Interestingly, the gating ring's intersubunit assembly interface harbors the RCK2 Ca2+-binding site, known as the Ca2+ bowl. The gating ring's assembly interface is made in part by intersubunit coordination of a Ca2+ ion between the Ca2+ bowl and an RCK1 Asn residue, N449, and by apparent intersubunit electrostatic interactions between E955 in RCK2 and R786 and R790 in the RCK2 of the adjacent subunit. To understand the role of the intersubunit assembly interface in Ca2+ gating, we performed mutational analyses of these putative interacting residues in human BK channels. We found that N449, despite its role in Ca2+ coordination, does not set the channel's Ca2+ sensitivity, whereas E955 is a determinant of Ca2+ sensitivity, likely through intersubunit electrostatic interactions. Our findings provide evidence that the intersubunit assembly interface contains molecular determinants of Ca2+ sensitivity in BK channels. PMID- 29323238 TI - Human complement receptor type 1 (CR1) protein levels and genetic variants in chronic Chagas Disease. AB - Complement is an essential element in both innate and acquired immunity contributing to the immunopathogenesis of many disorders, including Chagas Disease (CD). Human complement receptor 1 (CR1) plays a role in the clearance of complement opsonized molecules and may facilitate the entry of pathogens into host cells. Distinct CR1 exon 29 variants have been found associated with CR1 expression levels, increased susceptibility and pathophysiology of several diseases. In this study, CR1 plasma levels were assessed by ELISA and CR1 variants in exon 29 by sequencing in a Brazilian cohort of 232 chronic CD patients and 104 healthy controls. CR1 levels were significantly decreased in CD patients compared to controls (p < 0.0001). The CR1 rs1704660G, rs17047661G and rs6691117G variants were significantly associated with CD and in high linkage disequilibrium. The CR1*AGAGTG haplotype was associated with T. cruzi infection (p = 0.035, OR 3.99, CI 1.1-14.15) whereas CR1*AGGGTG was related to the risk of chagasic cardiomyopathy (p = 0.028, OR 12.15, CI 1.13-113). This is the first study that provides insights on the role of CR1 in development and clinical presentation of chronic CD. PMID- 29323239 TI - Specific Phospholipids Regulate the Acquisition of Neuronal and Astroglial Identities in Post-Mitotic Cells. AB - Hitherto, the known mechanisms underpinning cell-fate specification act on neural progenitors, affecting their commitment to generate neuron or glial cells. Here, we show that particular phospholipids supplemented in the culture media modify the commitment of post-mitotic neural cells in vitro. Phosphatidylcholine (PtdCho)-enriched media enhances neuronal differentiation at the expense of astroglial and unspecified cells. Conversely, phosphatidylethanolamine (PtdEtn) enhances astroglial differentiation and accelerates astrocyte maturation. The ability of phospholipids to modify the fate of post-mitotic cells depends on its presence during a narrow time-window during cell differentiation and it is mediated by the selective activation of particular signaling pathways. While PtdCho-mediated effect on neuronal differentiation depends on cAMP-dependent kinase (PKA)/calcium responsive element binding protein (CREB), PtdEtn stimulates astrogliogenesis through the activation of the MEK/ERK signaling pathway. Collectively, our results provide an additional degree of plasticity in neural cell specification and further support the notion that cell differentiation is a reversible phenomenon. They also contribute to our understanding of neuronal and glial lineage specification in the central nervous system, opening up new avenues to retrieve neurogenic capacity in the brain. PMID- 29323240 TI - Engineered 3D-printed artificial axons. AB - Myelination is critical for transduction of neuronal signals, neuron survival and normal function of the nervous system. Myelin disorders account for many debilitating neurological diseases such as multiple sclerosis and leukodystrophies. The lack of experimental models and tools to observe and manipulate this process in vitro has constrained progress in understanding and promoting myelination, and ultimately developing effective remyelination therapies. To address this problem, we developed synthetic mimics of neuronal axons, representing key geometric, mechanical, and surface chemistry components of biological axons. These artificial axons exhibit low mechanical stiffness approaching that of a human axon, over unsupported spans that facilitate engagement and wrapping by glial cells, to enable study of myelination in environments reflecting mechanical cues that neurons present in vivo. Our 3D printing approach provides the capacity to vary independently the complex features of the artificial axons that can reflect specific states of development, disease, or injury. Here, we demonstrate that oligodendrocytes' production and wrapping of myelin depend on artificial axon stiffness, diameter, and ligand coating. This biofidelic platform provides direct visualization and quantification of myelin formation and myelinating cells' response to both physical cues and pharmacological agents. PMID- 29323241 TI - Integrative approach using liver and duodenum RNA-Seq data identifies candidate genes and pathways associated with feed efficiency in pigs. AB - This study aims identifying candidate genes and pathways associated with feed efficiency (FE) in pigs. Liver and duodenum transcriptomes of 37 gilts showing high and low residual feed intake (RFI) were analysed by RNA-Seq. Gene expression data was explored through differential expression (DE) and weighted gene co expression network analyses. DE analysis revealed 55 and 112 differentially regulated genes in liver and duodenum tissues, respectively. Clustering genes according to their connectivity resulted in 23 (liver) and 25 (duodenum) modules of genes with a co-expression pattern. Four modules, one in liver (with 444 co expressed genes) and three in duodenum (gathering 37, 126 and 41 co-expressed genes), were significantly associated with FE indicators. Intra-module analyses revealed tissue-specific candidate genes; 12 of these genes were also identified as DE between individuals with high and low RFI. Pathways enriched by the list of genes showing DE and/or belonging to FE co-expressed modules included response to oxidative stress, inflammation, immune response, lipid metabolism and thermoregulation. Low overlapping between genes identified in duodenum and liver tissues was observed but heat shock proteins were associated to FE in both tissues. Our results suggest tissue-specific rather than common transcriptome regulatory processes associated with FE in pigs. PMID- 29323242 TI - Adipose-specific lipin1 overexpression in mice protects against alcohol-induced liver injury. AB - Excessive fatty acid release from the white adipose tissue (WAT) contributes to the development of alcoholic liver disease (ALD). Lipin1 (LPIN1), as a co regulator of DNA-bound transcription factors and a phosphatidic acid (PA) phosphatase (PAP) enzyme that dephosphorylates PA to form diacylglycerol (DAG), is dramatically reduced by alcohol in the WAT. This study aimed at determining the role of adipose LPIN1 in alcohol-induced lipodystrophy and the development of ALD. Transgenic mice overexpressing LPIN1 in adipose tissue (LPIN1-Tg) and wild type (WT) mice were fed a Lieber-DeCarli alcohol or isocaloric maltose dextrin control liquid diet for 8 weeks. Alcohol feeding to WT mice resulted in significant liver damage, which was significantly alleviated in the LPIN1-Tg mice. Alcohol feeding significantly reduced epididymal WAT (EWAT) mass, inhibited lipogenesis, and increased lipolysis in WT mice, which were attenuated in the LPIN1-Tg mice. LPIN1 overexpression also partially reversed alcohol-reduced plasma leptin levels. In WT mice, alcohol feeding induced hepatic lipid accumulation and down-regulation of beta-oxidation genes, which were dramatically alleviated in the LPIN1-Tg mice. LPIN1 overexpression also significantly attenuated alcohol-induced hepatic ER stress. These results suggest that overexpression of LPIN1 in adipose tissue restores WAT lipid storage function and secretive function to alleviate alcohol-induced liver injury. PMID- 29323243 TI - Expression of cry2Ah1 and two domain II mutants in transgenic tobacco confers high resistance to susceptible and Cry1Ac-resistant cotton bollworm. AB - To improve the novel Bacillus thuringiensis insecticidal gene cry2Ah1 toxicity, two mutants cry2Ah1-vp (V354VP) and cry2Ah1-sp (V354SP) were performed. SWISS MODEL analysis showed two mutants had a longer loop located between beta-4 and beta-5 of domain II, resulting in higher binding affinity with brush border membrane vesicles (BBMV) of Helicoverpa armigera comparing with Cry2Ah1. The cry2Ah1, cry2Ah1-vp, and cry2Ah1-sp were optimized codon usage according to plant codon bias, and named mcry2Ah1, mcry2Ah1-vp, and mcry2Ah1-sp. They were transformed into tobacco via Agrobacterium-mediated transformation and a total of 4, 8, and 24 transgenic tobacco plants were obtained, respectively. The molecular detection showed the exogenous gene was integrated into tobacco genome, and successfully expressed at the transcript and translation levels. Cry2Ah1 protein in transgenic tobacco plants varied from 4.41 to 40.28 MUg g-1 fresh weight. Insect bioassays indicated that all transgenic tobacco plants were highly toxic to both susceptible and Cry1Ac-resistant cotton bollworm larvae, and the insect resistance efficiency to Cry1Ac-resistant cotton bollworm was highest in mcry2Ah1 sp transgenic tobacco plants. The results demonstrated that cry2Ah1 was a useful Bt insecticidal gene to susceptible and Cry1Ac-resistant cotton bollworm and had potential application for insect biocontrol and as a candidate for pyramid strategy in Bt crops. PMID- 29323244 TI - Validity of Valence Estimation of Dopants in Glasses using XANES Analysis. AB - X-ray absorption near edge structure (XANES) measurement is one of the most powerful tools for the evaluation of a cation valence state. XANES measurement is sometimes the only available technique for the evaluation of the valence state of a dopant cation, which often occurs in phosphor materials. The validity of the core excitation process should be examined as a basis for understanding the applicability of this technique. Here, we demonstrate the validity of valence estimation of tin in oxide glasses, using Sn K-edge and L-edge XANES spectra, and compare the results with 119Sn Mossbauer analysis. The results of Sn K-edge XANES spectra analysis reveal that this approach cannot evaluate the actual valence state. On the contrary, in LII-edge absorption whose transition is 2p1/2-d, the change of the white line corresponds to the change of the valence state of tin, which is calculated from the 119Sn Mossbauer spectra. Among several analytical approaches, valence evaluation using the peak area, such as the absorption edge energy E 0 at the fractions of the edge step or E 0 at the zero of the second derivative, is better. The observed findings suggest that the valence state of a heavy element in amorphous materials should be discussed using several different definitions with error bars, even though L-edge XANES analyses are used. PMID- 29323245 TI - Author Correction: Multiple similarly effective solutions exist for biomedical feature selection and classification problems. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29323246 TI - ModuleDiscoverer: Identification of regulatory modules in protein-protein interaction networks. AB - The identification of disease-associated modules based on protein-protein interaction networks (PPINs) and gene expression data has provided new insights into the mechanistic nature of diverse diseases. However, their identification is hampered by the detection of protein communities within large-scale, whole-genome PPINs. A presented successful strategy detects a PPIN's community structure based on the maximal clique enumeration problem (MCE), which is a non-deterministic polynomial time-hard problem. This renders the approach computationally challenging for large PPINs implying the need for new strategies. We present ModuleDiscoverer, a novel approach for the identification of regulatory modules from PPINs and gene expression data. Following the MCE-based approach, ModuleDiscoverer uses a randomization heuristic-based approximation of the community structure. Given a PPIN of Rattus norvegicus and public gene expression data, we identify the regulatory module underlying a rodent model of non alcoholic steatohepatitis (NASH), a severe form of non-alcoholic fatty liver disease (NAFLD). The module is validated using single-nucleotide polymorphism (SNP) data from independent genome-wide association studies and gene enrichment tests. Based on gene enrichment tests, we find that ModuleDiscoverer performs comparably to three existing module-detecting algorithms. However, only our NASH module is significantly enriched with genes linked to NAFLD-associated SNPs. ModuleDiscoverer is available at http://www.hki-jena.de/index.php/0/2/490 (Others/ModuleDiscoverer). PMID- 29323247 TI - Leakage correction improves prognosis prediction of dynamic susceptibility contrast perfusion MRI in primary central nervous system lymphoma. AB - To evaluate whether the cerebral blood volume (CBV) measurement with leakage correction from dynamic susceptibility contrast perfusion weighted imaging can be useful in predicting prognosis for primary central nervous system lymphoma (PCNSL). 46 PCNSL patients were included and classified by radiation therapy (RT) stratification into RT (n = 30) and non-RT (n = 16) groups. The corresponding histogram parameters of normalized CBV (nCBV) maps with or without leakage correction were calculated on contrast-enhanced T1 weighted image (CE T1WI) or on fluid attenuated inversion recovery image. The 75th percentile nCBV with leakage correction based on CE T1WI (T1 nCBVL75%) had a significant difference between the short and long progression free survival (PFS) subgroups of the RT group and the non-RT group, respectively. Based on the survival analysis, patients in the RT group with high T1 nCBVL75% had earlier progression than the others with a low T1 nCBVL75%. However, patients in the non-RT group with a high T1 nCBVL75% had slower progression than the others with a low T1 nCBVL75%. Based on RT stratification, the CBV with leakage correction has potential as a noninvasive biomarker for the prognosis prediction of PCNSL to identify high risk patients and it has a different correlation with the PFS based on the presence of combined RT. PMID- 29323248 TI - Exploring the utility of alcohol flushing as an instrumental variable for alcohol intake in Koreans. AB - Previous studies have indicated an association of higher alcohol intake with cardiovascular disease and related traits, but causation has not been definitively established. In this study, the causal effect of alcohol intake on hypertension in 2,011 men and women from the Ansan-Ansung cohort was estimated using an instrumental variable (IV) approach, with both a phenotypic and genotypic instrument for alcohol intake: alcohol flushing and the rs671 genotype (in the alcohol dehydrogenase 2 [ALDH2] gene), respectively. Both alcohol flushing and the rs671 genotype were associated with alcohol intake (difference in alcohol intake with alcohol flushers vs. non-flushers: -9.07 g/day; 95% confidence interval [CI]: -11.12, -7.02; P-value: 8.3 * 10-18 and with the rs671 GA + AA vs. GG genotype: -7.94 g/day; 95% CI: -10.20, -5.69; P-value: 6.1 * 10 12). An increase in alcohol intake, as predicted by both the absence of alcohol flushing and the presence of the rs671 GG genotype in the IV analyses, was associated with an increase in blood pressure in men from this Korean population. In conclusion, this study supports a causal effect of alcohol intake on hypertension and indicated that alcohol flushing may be a valid proxy for the ALDH2 rs671 polymorphism, which influences alcohol intake in this Korean population. PMID- 29323250 TI - A biofilm and organomineralisation model for the growth and limiting size of ooids. AB - Ooids are typically spherical sediment grains characterised by concentric layers encapsulating a core. There is no universally accepted explanation for ooid genesis, though factors such as agitation, abiotic and/or microbial mineralisation and size limitation have been variously invoked. Here we examine the possible influence of microbial organomineralisation on the formation of some naturally occurring ooids. We develop a mathematical model for ooid growth, inspired by work on avascular brain tumours, that assumes mineralisation in a biofilm to form a central core which then nucleates the progressive growth of concentric laminations. The model predicts a limiting size with the sequential width variation of growth rings comparing favourably with those observed in experimentally grown ooids generated from biomicrospheres. In reality, this model pattern may be complicated during growth by syngenetic aggrading neomorphism of the unstable mineral phase, followed by diagenetic recrystallisation that further complicates the structure. Our model provides a potential key to understanding the genetic archive preserved in the internal structures of some ooids. PMID- 29323249 TI - Probabilistic data integration identifies reliable gametocyte-specific proteins and transcripts in malaria parasites. AB - Plasmodium gametocytes are the sexual forms of the malaria parasite essential for transmission to mosquitoes. To better understand how gametocytes differ from asexual blood-stage parasites, we performed a systematic analysis of available 'omics data for P. falciparum and other Plasmodium species. 18 transcriptomic and proteomic data sets were evaluated for the presence of curated "gold standards" of 41 gametocyte-specific versus 46 non-gametocyte genes and integrated using Bayesian probabilities, resulting in gametocyte-specificity scores for all P. falciparum genes. To illustrate the utility of the gametocyte score, we explored newly predicted gametocyte-specific genes as potential biomarkers of gametocyte carriage and exposure. We analyzed the humoral immune response in field samples against 30 novel gametocyte-specific antigens and found five antigens to be differentially recognized by gametocyte carriers as compared to malaria-infected individuals without detectable gametocytes. We also validated the gametocyte specificity of 15 identified gametocyte transcripts on culture material and samples from naturally infected individuals, resulting in eight transcripts that were >1000-fold higher expressed in gametocytes compared to asexual parasites and whose transcript abundance allowed gametocyte detection in naturally infected individuals. Our integrated genome-wide gametocyte-specificity scores provide a comprehensive resource to identify targets and monitor P. falciparum gametocytemia. PMID- 29323251 TI - Vitamin E inhibits the UVAI induction of "light" and "dark" cyclobutane pyrimidine dimers, and oxidatively generated DNA damage, in keratinocytes. AB - Solar ultraviolet radiation (UVR)-induced DNA damage has acute, and long-term adverse effects in the skin. This damage arises directly by absorption of UVR, and indirectly via photosensitization reactions. The aim of the present study was to assess the effects of vitamin E on UVAI-induced DNA damage in keratinocytes in vitro. Incubation with vitamin E before UVAI exposure decreased the formation of oxidized purines (with a decrease in intracellular oxidizing species), and cyclobutane pyrimidine dimers (CPD). A possible sunscreening effect was excluded when similar results were obtained following vitamin E addition after UVAI exposure. Our data showed that DNA damage by UVA-induced photosensitization reactions can be inhibited by the introduction of vitamin E either pre- or post irradiation, for both oxidized purines and CPD (including so-called "dark" CPDs). These data validate the evidence that some CPD are induced by UVAI initially via photosensitization, and some via chemoexcitation, and support the evidence that vitamin E can intervene in this pathway to prevent CPD formation in keratinocytes. We propose the inclusion of similar agents into topical sunscreens and aftersun preparations which, for the latter in particular, represents a means to mitigate on-going DNA damage formation, even after sun exposure has ended. PMID- 29323252 TI - Clinical Value of 99mTc-3PRGD2 SPECT/CT in Differentiated Thyroid Carcinoma with Negative 131I Whole-Body Scan and Elevated Thyroglobulin Level. AB - The aim of this study was to assess the usefulness of integrin imaging with 99mTc PEG4-E[PEG4-c(RGDfK)]2 (99mTc-3PRGD2) single photon emission computed tomography (SPECT)/computed tomography (CT) in detecting recurrent disease in patients with differentiated thyroid cancer (DTC), negative radioiodine whole-body scan (WBS) and high serum thyroglobulin (Tg). Thirty-seven patients who underwent total thyroidectomy followed by radioactive iodine ablation and had negative radioiodine WBS but elevated Tg levels were included. 99mTc-3PRGD2 SPECT/CT was performed 1 week after the negative diagnostic 131I WBS. Diagnostic performance indicators, including sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV), for 99mTc-3PRGD2 SPECT/CT was calculated. The correlations between SPECT/CT results and clinic-pathological characteristics were examined. In 30 (81.1%) of the 37 patients, 99mTc-3PRGD2 SPECT/CT showed positive uptake. The sensitivity, specificity, PPV, and NPV of SPECT/CT to detect recurrent disease at follow-up were 96.6%, 75%, 93.3% and 85.7%, respectively. The sensitivity and PPV of SPECT/CT increased with increasing serum Tg levels. 99mTc-3PRGD2 SPECT/CT showed high sensitivity and PPV in the detection of recurrence among DTC patients with higher Tg levels and negative WBS, and the probability of obtaining a positive SPECT/CT result was related with the level of Tg. PMID- 29323253 TI - Assessing kinetic fractionation in brachiopod calcite using clumped isotopes. AB - Brachiopod shells are the most widely used geological archive for the reconstruction of the temperature and the oxygen isotope composition of Phanerozoic seawater. However, it is not conclusive whether brachiopods precipitate their shells in thermodynamic equilibrium. In this study, we investigated the potential impact of kinetic controls on the isotope composition of modern brachiopods by measuring the oxygen and clumped isotope compositions of their shells. Our results show that clumped and oxygen isotope compositions depart from thermodynamic equilibrium due to growth rate-induced kinetic effects. These departures are in line with incomplete hydration and hydroxylation of dissolved CO2. These findings imply that the determination of taxon-specific growth rates alongside clumped and bulk oxygen isotope analyses is essential to ensure accurate estimates of past ocean temperatures and seawater oxygen isotope compositions from brachiopods. PMID- 29323255 TI - Counting statistics of photon emissions detected in non-Markovian environment. AB - In this work we present a large-deviation analysis for the counting statistics of atomic spontaneous emissions continuously detected in finite-bandwidth non Markovian environment. We show that the statistics of the spontaneous emissions depends on the time interval (tau) of successive detections, which can result in big differences such as dynamical phase transition. This feature excludes the idea of regarding the spontaneous emissions as detection-free objective events. Possible experiment is briefly discussed in connection with the state-of-the-art optical cavity set-up. PMID- 29323254 TI - Genome-wide association study reveals candidate genes influencing lipids and diterpenes contents in Coffea arabica L. AB - Lipids, including the diterpenes cafestol and kahweol, are key compounds that contribute to the quality of coffee beverages. We determined total lipid content and cafestol and kahweol concentrations in green beans and genotyped 107 Coffea arabica accessions, including wild genotypes from the historical FAO collection from Ethiopia. A genome-wide association study was performed to identify genomic regions associated with lipid, cafestol and kahweol contents and cafestol/kahweol ratio. Using the diploid Coffea canephora genome as a reference, we identified 6,696 SNPs. Population structure analyses suggested the presence of two to three groups (K = 2 and K = 3) corresponding to the east and west sides of the Great Rift Valley and an additional group formed by wild accessions collected in western forests. We identified 5 SNPs associated with lipid content, 4 with cafestol, 3 with kahweol and 9 with cafestol/kahweol ratio. Most of these SNPs are located inside or near candidate genes related to metabolic pathways of these chemical compounds in coffee beans. In addition, three trait-associated SNPs showed evidence of directional selection among cultivated and wild coffee accessions. Our results also confirm a great allelic richness in wild accessions from Ethiopia, especially in accessions originating from forests in the west side of the Great Rift Valley. PMID- 29323256 TI - Splicing of platelet resident pre-mRNAs upon activation by physiological stimuli results in functionally relevant proteome modifications. AB - Platelet activation triggers thrombus formation in physiological and pathological conditions, such as acute coronary syndromes. Current therapies still fail to prevent thrombotic events in numerous patients, indicating that the mechanisms modulating platelet response during activation need to be clarified. The evidence that platelets are capable of de novo protein synthesis in response to stimuli raised the issue of how megakaryocyte-derived mRNAs are regulated in these anucleate cell fragments. Proteogenomics was applied here to investigate this phenomeon in platelets activated in vitro with Collagen or Thrombin Receptor Activating Peptide. Combining proteomics and transcriptomics allowed in depth platelet proteome characterization, revealing a significant effect of either stimulus on proteome composition. In silico analysis revealed the presence of resident immature RNAs in resting platelets, characterized by retained introns, while unbiased proteogenomics correlated intron removal by RNA splicing with changes on proteome composition upon activation. This allowed identification of a set of transcripts undergoing maturation by intron removal during activation and resulting in accumulation of the corresponding peptides at exon-exon junctions. These results indicate that RNA splicing events occur in platelets during activation and that maturation of specific pre-mRNAs is part of the activation cascade, contributing to a dynamic fine-tuning of the transcriptome. PMID- 29323257 TI - Dengue virus-induced ER stress is required for autophagy activation, viral replication, and pathogenesis both in vitro and in vivo. AB - Dengue virus (DENV) utilizes the endoplasmic reticulum (ER) for replication and assembling. Accumulation of unfolded proteins in the ER lumen leads to ER stress and unfolded protein response (UPR). Three branches of UPRs temporally modulated DENV infection. Moreover, ER stress can also induce autophagy. DENV infection induces autophagy which plays a promotive role in viral replication has been reported. However, the role of ER stress in DENV-induced autophagy, viral titer, and pathogenesis remain unclear. Here, we reveal that ER stress and its downstream UPRs are indispensable for DENV-induced autophagy in various human cells. We demonstrate that PERK-eIF2alpha and IRE1alpha-JNK signaling pathways increased autophagy and viral load after DENV infection. However, ATF6-related pathway showed no effect on autophagy and viral replication. IRE1alpha-JNK downstream molecule Bcl-2 was phosphorylated by activated JNK and dissociated from Beclin 1, which playing a critical role in autophagy activation. These findings were confirmed as decreased viral titer, attenuated disease symptoms, and prolonged survival rate in the presence of JNK inhibitor in vivo. In summary, we are the first to reveal that DENV2-induced ER stress increases autophagy activity, DENV replication, and pathogenesis through two UPR signaling pathways both in vitro and in vivo. PMID- 29323258 TI - Association between arsenic metabolism gene polymorphisms and arsenic-induced skin lesions in individuals exposed to high-dose inorganic arsenic in northwest China. AB - Individuals in a given environment contaminated with arsenic have different susceptibilities to disease, which may be related to arsenic metabolism, age, gender, genetics and other factors. This study recruited 850 subjects, including 331 cases and 519 controls, from populations exposed to high levels of arsenic in drinking water in northwest China. Genotypes were determined using a custom-by design 48-Plex SNPscanTM kit. The results indicated that subjects who carried at least one C allele for GSTO1 rs11191979 polymorphism, at least one A allele for GSTO1 rs2164624, at least one A allele for GSTO1 rs4925, the AG genotype for GSTO2 rs156697, the AG genotype or at least one G allele for GSTO2 rs2297235 or the GG genotype or at least one G allele for PNP rs3790064 had an increased risk of arsenic-related skin lesions. In addition, the haplotype CT between rs4925 and rs11191979 appeared to confer a high risk of arsenic-included skin lesions (OR = 1.377, 95% CI = 1.03-1.84), as did the haplotype GCG among rs156697, rs157077 and rs2297235 (OR = 2.197, 95% CI = 1.08-4.44). The results showed that the variants of GSTO1, GSTO2 and PNP render the susceptible toward developing arsenic-induced skin lesions in individuals exposed to high-dose inorganic arsenic in northwest China. PMID- 29323259 TI - Impacts of feeding preweaned calves milk containing drug residues on the functional profile of the fecal microbiota. AB - Feeding drug residue-containing milk to calves is common worldwide and no information is currently available on the impact on the functional profile of the fecal microbiota. Our objective was to characterize the functional profile of the fecal microbiota of preweaned dairy calves fed raw milk with residual concentrations of antimicrobials commonly found in waste milk from birth to weaning. Calves were assigned to a controlled feeding trial being fed milk with no drug residues or milk with antibiotic residues. Fecal samples collected from each calf once a week starting at birth, prior to the first feeding in the trial, until 6 weeks of age. Antibiotic residues resulted in a significant difference in relative abundance of microbial cell functions, especially with genes linked with stress response, regulation and cell signaling, and nitrogen metabolism. These changes could directly impacts selection and dissemination of virulence and antimicrobial. Our data also identified a strong association between age in weeks and abundance of Resistance to Antibiotics and Toxic Compounds. Findings from this study support the hypothesis that drug residues, even at very low concentrations, impact the gut microbiota of calves and result in changes in the functional profile of microbial populations. PMID- 29323260 TI - Dietary fatty acids sex-specifically modulate guinea pig postnatal development via cortisol concentrations. AB - Early ontogenetic periods and postnatal maturation in organisms are sex specifically sensitive to hypothalamic-pituitary-adrenal (HPA)-axis activities, related glucocorticoid secretions, and their effects on energy balance and homeostasis. Dietary polyunsaturated (PUFAs) and saturated (SFAs) fatty acids potentially play a major role in this context because PUFAs positively affect HPA axis functions and a shift towards SFAs may impair body homeostasis. Here we show that dietary PUFAs positively affect postnatal body mass gain and diminish negative glucocorticoid-effects on structural growth rates in male guinea pigs. In contrast, SFAs increased glucocorticoid concentrations, which positively affected testes size and testosterone concentrations in males, but limited their body mass gain and first year survival rate. No distinct diet-related effects were detectable on female growth rates. These results highlight the importance of PUFAs in balancing body homeostasis during male's juvenile development, which clearly derived from a sex-specific energetic advantage of dietary PUFA intakes compared to SFAs. PMID- 29323261 TI - Neoadjuvant therapy in relation to lymphadenectomy and resection margins during surgery for oesophageal cancer. AB - Differences in lymph node yield and tumour-involved resection margins comparing neoadjuvant therapy plus surgery with surgery alone for oesophageal cancer are unclear. Patients who underwent oesophageal cancer surgery in Sweden in 1987-2010 were included. Patients treated with neoadjuvant therapy were compared with those who underwent surgery alone. Outcomes were the number of examined lymph nodes (main outcome), number metastatic lymph nodes, and resection margin status. Rate ratios (RRs) and 95% CIs of lymph node yield were calculated by Poisson regression, and odds ratios (ORs) and 95% CIs of resection margin status by multivariable logistic regression, both adjusted for confounders. Among 1818 patients, 587 (32%) had received neoadjuvant therapy and 1231 (68%) had not. Lymph node yield was lower in the neoadjuvant therapy group (median 6 versus 8; adjusted RR 0.75, 0.73-0.78). Fewer metastatic nodes were identified following neoadjuvant therapy (median 0 versus 1; adjusted RR 0.76, 0.69-0.84). Neoadjuvant therapy associated to decreased risk of tumour-involved resection margins when adjusted for confounders except T-stage (OR 0.52, 0.38-0.70), but the association did not remain after adjustment for T-stage (OR 0.91, 0.64-1.29). Neoadjuvant therapy seems to decrease the lymph node yield and decrease the risk of tumour involved resection margins by shrinking primary tumour. PMID- 29323262 TI - Cooperative standing-horizontal-standing reentrant transition for numerous solid particles under external vibration. AB - We report the collective behavior of numerous plastic bolt-like particles exhibiting one of two distinct states, either standing stationary or horizontal accompanied by tumbling motion, when placed on a horizontal plate undergoing sinusoidal vertical vibration. Experimentally, we prepared an initial state in which all of the particles were standing except for a single particle that was placed at the center of the plate. Under continuous vertical vibration, the initially horizontal particle triggers neighboring particles to fall over into a horizontal state through tumbling-induced collision, and this effect gradually spreads to all of the particles, i.e., the number of horizontal particles is increased. Interestingly, within a certain range of vibration intensity, almost all of the horizontal particles revert back to standing in association with the formation of apparent 2D hexagonal dense-packing. Thus, phase segregation between high and low densities, or crystalline and disperse domains, of standing particles is generated as a result of the reentrant transition. The essential features of such cooperative dynamics through the reentrant transition are elucidated with a simple kinetic model. We also demonstrate that an excitable wave with the reentrant transition is observed when particles are situated in a quasi-one-dimensional confinement on a vibrating plate. PMID- 29323263 TI - Putative sex pheromone of the Asian citrus psyllid, Diaphorina citri, breaks down into an attractant. AB - Under laboratory conditions, mating activity in Asian citrus psyllid (ACP) started 4 days after emergence, peaked at day 7, and showed a clear window of activity starting 8 h into the photophase and extending through the first hour of the scotophase. We confirmed that ACP males are attracted to emanations from conspecific females. Traps loaded with a candidate compound enriched with female extract, lignoceryl acetate (24Ac), at various doses were active only after being deployed for several weeks in the field, suggesting that a degradation product, not the test compound, was the active ingredient(s). Lignocerol, a possible product of 24Ac degradation, was not active, whereas acetic acid, another possible degradation product, was found in the airborne volatile collections from lures matured under field conditions and detected in higher amounts in volatiles collected from females at the peak of mating activity than in male samples. Acetic acid elicited dose-dependent electroantennographic responses and attracted ACP males, but not females, in Y-type and 4-way olfactometers. Field tests showed that acetic acid-baited traps captured significantly more males than control traps. Surprisingly, captures of females in acetic acid-baited traps were also higher than in control traps, possibly because of physical stimuli emitted by captured males. PMID- 29323264 TI - Orai3 calcium channel and resistance to chemotherapy in breast cancer cells: the p53 connection. AB - Orai proteins are highly selective calcium channels playing an important role in calcium entry. Orai3 channels are overexpressed in breast cancer (BC) tissues, and involved in their proliferation, cell cycle progression and survival. Herein, we sought to address the involvement of Orai3 in resistance to chemotherapeutic drugs. Using high-throughput approaches, we investigated major changes induced by Orai3 overexpression, including downstream signaling mechanisms involved in BC chemotherapy resistance. Resistance was dependent on external calcium presence and thus Orai3 functionality. This effect allowed a downregulation of the p53 tumor suppressor protein expression via the pro-survival PI3K/Sgk-1/Sek-1 pathway. We demonstrated that p53 degradation occurred not only via Mdm2, but also via another unexpected E3 ubiquitin ligase, Nedd4-2. We found supporting bioinformatic evidence linking Orai3 overexpression and chemoresistance in large human BC data sets. Altogether, our results shed light on the molecular mechanisms activated in BC cells commonly found to overexpress Orai3, allowing resistance to chemotherapeutic drugs. PMID- 29323265 TI - Redox-dependent BMI1 activity drives in vivo adult cardiac progenitor cell differentiation. AB - Accumulation of reactive oxygen species (ROS) is associated with several cardiovascular pathologies and with cell cycle exit by neonanatal cardiomyocytes, a key limiting factor in the regenerative capacity of the adult mammalian heart. The polycomb complex component BMI1 is linked to adult progenitors and is an important partner in DNA repair and redox regulation. We found that high BMI1 expression is associated with an adult Sca1+ cardiac progenitor sub-population with low ROS levels. In homeostasis, BMI1 repressed cell fate genes, including a cardiogenic differentiation program. Oxidative damage nonetheless modified BMI1 activity in vivo by derepressing canonical target genes in favor of their antioxidant and anticlastogenic functions. This redox-mediated mechanism is not restricted to damage situations, however, and we report ROS-associated differentiation of cardiac progenitors in steady state. These findings demonstrate how redox status influences the cardiac progenitor response, and identify redox-mediated BMI1 regulation with implications in maintenance of cellular identity in vivo. PMID- 29323266 TI - AIF loss deregulates hematopoiesis and reveals different adaptive metabolic responses in bone marrow cells and thymocytes. AB - Mitochondrial metabolism is a tightly regulated process that plays a central role throughout the lifespan of hematopoietic cells. Herein, we analyze the consequences of the mitochondrial oxidative phosphorylation (OXPHOS)/metabolism disorder associated with the cell-specific hematopoietic ablation of apoptosis inducing factor (AIF). AIF-null (AIF-/Y ) mice developed pancytopenia that was associated with hypocellular bone marrow (BM) and thymus atrophy. Although myeloid cells were relatively spared, the B-cell and erythroid lineages were altered with increased frequencies of precursor B cells, pro-erythroblasts I, and basophilic erythroblasts II. T-cell populations were dramatically reduced with a thymopoiesis blockade at a double negative (DN) immature state, with DN1 accumulation and delayed DN2/DN3 and DN3/DN4 transitions. In BM cells, the OXPHOS/metabolism dysfunction provoked by the loss of AIF was counterbalanced by the augmentation of the mitochondrial biogenesis and a shift towards anaerobic glycolysis. Nevertheless, in a caspase-independent process, the resulting excess of reactive oxygen species compromised the viability of the hematopoietic stem cells (HSC) and progenitors. This led to the progressive exhaustion of the HSC pool, a reduced capacity of the BM progenitors to differentiate into colonies in methylcellulose assays, and the absence of cell-autonomous HSC repopulating potential in vivo. In contrast to BM cells, AIF-/Y thymocytes compensated for the OXPHOS breakdown by enhancing fatty acid beta-oxidation. By over-expressing CPT1, ACADL and PDK4, three key enzymes facilitating fatty acid beta-oxidation (e.g., palmitic acid assimilation), the AIF-/Y thymocytes retrieved the ATP levels of the AIF +/Y cells. As a consequence, it was possible to significantly reestablish AIF-/Y thymopoiesis in vivo by feeding the animals with a high-fat diet complemented with an antioxidant. Overall, our data reveal that the mitochondrial signals regulated by AIF are critical to hematopoietic decision-making. Emerging as a link between mitochondrial metabolism and hematopoietic cell fate, AIF mediated OXPHOS regulation represents a target for the development of new immunomodulatory therapeutics. PMID- 29323269 TI - Postmitotic nuclear pore assembly proceeds by radial dilation of small membrane openings. AB - The nuclear envelope has to be reformed after mitosis to create viable daughter cells with closed nuclei. How membrane sealing of DNA and assembly of nuclear pore complexes (NPCs) are achieved and coordinated is poorly understood. Here, we reconstructed nuclear membrane topology and the structures of assembling NPCs in a correlative 3D EM time course of dividing human cells. Our quantitative ultrastructural analysis shows that nuclear membranes form from highly fenestrated ER sheets whose holes progressively shrink. NPC precursors are found in small membrane holes and dilate radially during assembly of the inner ring complex, forming thousands of transport channels within minutes. This mechanism is fundamentally different from that of interphase NPC assembly and explains how mitotic cells can rapidly establish a closed nuclear compartment while making it transport competent. PMID- 29323268 TI - Evaluation of animal-to-human and human-to-human transmission of influenza A (H7N9) virus in China, 2013-15. AB - A novel avian-origin influenza A(H7N9) virus emerged in China in March 2013 and by 27 September 2017 a total of 1533 laboratory-confirmed cases have been reported. Occurrences of animal-to-human and human-to-human transmission have been previously identified, and the force of human-to-human transmission is an important component of risk assessment. In this study, we constructed an ecological model to evaluate the animal-to-human and human-to-human transmission of H7N9 during the first three epidemic waves in spring 2013, winter/spring 2013 2014 and winter/spring 2014-2015 in China based on 149 laboratory-confirmed urban cases. Our analysis of patterns in incidence in major cities allowed us to estimate a mean incubation period in humans of 2.6 days (95% credibility interval, CrI: 1.4-3.1) and an effective reproduction number Re of 0.23 (95% CrI: 0.05-0.47) for the first wave, 0.16 (95% CrI: 0.01-0.41) for the second wave, and 0.16 (95% CrI: 0.01-0.45) for the third wave without a significant difference between waves. There was a significant decrease in the incidence of H7N9 cases after live poultry market closures in various major cities. Our analytic framework can be used for continued assessment of the risk of human to human transmission of A(H7N9) virus as human infections continue to occur in China. PMID- 29323267 TI - Scaffold-free generation of uniform adipose spheroids for metabolism research and drug discovery. AB - Adipose tissue dysfunction is critical to the development of type II diabetes and other metabolic diseases. While monolayer cell culture has been useful for studying fat biology, 2D culture often does not reflect the complexity of fat tissue. Animal models are also problematic in that they are expensive, time consuming, and may not completely recapitulate human biology because of species variation. To address these problems, we have developed a scaffold-free method to generate 3D adipose spheroids from primary or immortal human or mouse pre adipocytes. Pre-adipocytes self-organize into spheroids in hanging drops and upon transfer to low attachment plates, can be maintained in long-term cultures. Upon exposure to differentiation cues, the cells mature into adipocytes, accumulating large lipid droplets that expand with time. The 3D spheroids express and secrete higher levels of adiponectin compared to 2D culture and respond to stress, either culture-related or toxin-associated, by secreting pro-inflammatory adipokines. In addition, 3D spheroids derived from brown adipose tissue (BAT) retain expression of BAT markers better than 2D cultures derived from the same tissue. Thus, this model can be used to study both the maturation of pre-adipocytes or the function of mature adipocytes in a 3D culture environment. PMID- 29323270 TI - Two three-strand intermediates are processed during Rad51-driven DNA strand exchange. AB - During homologous recombination, Rad51 forms a nucleoprotein filament with single stranded DNA (ssDNA) that undergoes strand exchange with homologous double stranded DNA (dsDNA). Here, we use real-time analysis to show that strand exchange by fission yeast Rad51 proceeds via two distinct three-strand intermediates, C1 and C2. Both intermediates contain Rad51, but whereas the donor duplex remains intact in C1, the ssDNA strand is intertwined with the complementary strand of the donor duplex in C2. Swi5-Sfr1, an evolutionarily conserved recombination activator, facilitates the C1-C2 transition and subsequent ssDNA release from C2 to complete strand exchange in an ATP-hydrolysis dependent manner. In contrast, Ca2+, which activates the Rad51 filament by curbing ATP hydrolysis, facilitates the C1-C2 transition but does not promote strand exchange. These results reveal that Swi5-Sfr1 and Ca2+ have different activation modes in the late synaptic phase, despite their common function in stabilizing the presynaptic filament. PMID- 29323271 TI - Cryo-EM structures of the human INO80 chromatin-remodeling complex. AB - Access to chromatin for processes such as transcription and DNA repair requires the sliding of nucleosomes along DNA. This process is aided by chromatin remodeling complexes, such as the multisubunit INO80 chromatin-remodeling complex. Here we present cryo-EM structures of the active core complex of human INO80 at 9.6 A, with portions at 4.1-A resolution, and reconstructions of combinations of subunits. Together, these structures reveal the architecture of the INO80 complex, including Ino80 and actin-related proteins, which is assembled around a single RUVBL1 (Tip49a) and RUVBL2 (Tip49b) AAA+ heterohexamer. An unusual spoked-wheel structural domain of the Ino80 subunit is engulfed by this heterohexamer; both, in combination, form the core of the complex. We also identify a cleft in RUVBL1 and RUVBL2, which forms a major interaction site for partner proteins and probably communicates these interactions to its nucleotide binding sites. PMID- 29323273 TI - Histone octamer rearranges to adapt to DNA unwrapping. AB - Nucleosomes, the basic units of chromatin, package and regulate expression of eukaryotic genomes. Although the structure of the intact nucleosome is well characterized, little is known about structures of partially unwrapped, transient intermediates. In this study, we present nine cryo-EM structures of distinct conformations of nucleosome and subnucleosome particles. These structures show that initial DNA breathing induces conformational changes in the histone octamer, particularly in histone H3, that propagate through the nucleosome and prevent symmetrical DNA opening. Rearrangements in the H2A-H2B dimer strengthen interaction with the unwrapping DNA and promote nucleosome stability. In agreement with this, cross-linked H2A-H2B that cannot accommodate unwrapping of the DNA is not stably maintained in the nucleosome. H2A-H2B release and DNA unwrapping occur simultaneously, indicating that DNA is essential in stabilizing the dimer in the nucleosome. Our structures reveal intrinsic nucleosomal plasticity that is required for nucleosome stability and might be exploited by extrinsic protein factors. PMID- 29323274 TI - APOBEC3 induces mutations during repair of CRISPR-Cas9-generated DNA breaks. AB - The APOBEC-AID family of cytidine deaminase prefers single-stranded nucleic acids for cytidine-to-uridine deamination. Single-stranded nucleic acids are commonly involved in the DNA repair system for breaks generated by CRISPR-Cas9. Here, we show in human cells that APOBEC3 can trigger cytidine deamination of single stranded oligodeoxynucleotides, which ultimately results in base substitution mutations in genomic DNA through homology-directed repair (HDR) of Cas9-generated double-strand breaks. In addition, the APOBEC3-catalyzed deamination in genomic single-stranded DNA formed during the repair of Cas9 nickase-generated single strand breaks in human cells can be further processed to yield mutations mainly involving insertions or deletions (indels). Both APOBEC3-mediated deamination and DNA-repair proteins play important roles in the generation of these indels. Therefore, optimizing conditions for the repair of CRISPR-Cas9-generated DNA breaks, such as using double-stranded donors in HDR or temporarily suppressing endogenous APOBEC3s, can repress these unwanted mutations in genomic DNA. PMID- 29323272 TI - Dominant-negative SMARCA4 mutants alter the accessibility landscape of tissue unrestricted enhancers. AB - Mutation of SMARCA4 (BRG1), the ATPase of BAF (mSWI/SNF) and PBAF complexes, contributes to a range of malignancies and neurologic disorders. Unfortunately, the effects of SMARCA4 missense mutations have remained uncertain. Here we show that SMARCA4 cancer missense mutations target conserved ATPase surfaces and disrupt the mechanochemical cycle of remodeling. We find that heterozygous expression of mutants alters the open chromatin landscape at thousands of sites across the genome. Loss of DNA accessibility does not directly overlap with Polycomb accumulation, but is enriched in 'A compartments' at active enhancers, which lose H3K27ac but not H3K4me1. Affected positions include hundreds of sites identified as superenhancers in many tissues. Dominant-negative mutation induces pro-oncogenic expression changes, including increased expression of Myc and its target genes. Together, our data suggest that disruption of enhancer accessibility represents a key source of altered function in disorders with SMARCA4 mutations in a wide variety of tissues. PMID- 29323276 TI - Chd1 bends over backward to remodel. PMID- 29323275 TI - RNA-DamID reveals cell-type-specific binding of roX RNAs at chromatin-entry sites. AB - Thousands of long noncoding RNAs (lncRNAs) have been identified in eukaryotic genomes, many of which are expressed in spatially and temporally restricted patterns. Nonetheless, the roles of the majority of these transcripts are still unknown. One of the mechanisms by which lncRNAs function is through the modulation of chromatin states. To assess the functions of lncRNAs, we developed RNA-DamID, a novel approach that detects lncRNA-genome interactions in a cell type-specific manner in vivo with high sensitivity and accuracy. Identifying the cell-type-specific genome occupancy of lncRNAs is vital to understanding their mechanisms of action in development and disease. We used RNA-DamID to investigate targeting of the lncRNAs in the Drosophila dosage-compensation complex (DCC) and show that initial targeting is cell-type specific. PMID- 29323277 TI - Structure and dynamics of GPCR signaling complexes. AB - G-protein-coupled receptors (GPCRs) relay numerous extracellular signals by triggering intracellular signaling through coupling with G proteins and arrestins. Recent breakthroughs in the structural determination of GPCRs and GPCR transducer complexes represent important steps toward deciphering GPCR signal transduction at a molecular level. A full understanding of the molecular basis of GPCR-mediated signaling requires elucidation of the dynamics of receptors and their transducer complexes as well as their energy landscapes and conformational transition rates. Here, we summarize current insights into the structural plasticity of GPCR-G-protein and GPCR-arrestin complexes that underlies the regulation of the receptor's intracellular signaling profile. PMID- 29323278 TI - Structural biology of Zika virus and other flaviviruses. AB - Zika virus (ZIKV) is an enveloped, icosahedral flavivirus that has structural and functional similarities to other human flavivirus pathogens such as dengue (DENV), West Nile (WNV) and Japanese encephalitis (JEV) viruses. ZIKV infections have been linked to fetal microcephaly and the paralytic Guillain-Barre syndrome. This review provides a comparative structural analysis of the assembly, maturation and host-cell entry of ZIKV with other flaviviruses, especially DENV. We also discuss the mechanisms of neutralization by antibodies. PMID- 29323280 TI - Nucleotide exchange factors Fes1 and HspBP1 mimic substrate to release misfolded proteins from Hsp70. AB - Protein quality control depends on the tight regulation of interactions between molecular chaperones and polypeptide substrates. Substrate release from the chaperone Hsp70 is triggered by nucleotide-exchange factors (NEFs) that control folding and degradation fates via poorly understood mechanisms. We found that the armadillo-type NEFs budding yeast Fes1 and its human homolog HspBP1 employ flexible N-terminal release domains (RDs) with substrate-mimicking properties to ensure the efficient release of persistent substrates from Hsp70. The RD contacts the substrate-binding domain of the chaperone, competes with peptide substrate for binding and is essential for proper function in yeast and mammalian cells. Thus, the armadillo domain engages Hsp70 to trigger nucleotide exchange, whereas the RD safeguards the release of substrates. Our findings provide fundamental mechanistic insight into the functional specialization of Hsp70 NEFs and have implications for the understanding of proteostasis-related disorders, including Marinesco-Sjogren syndrome. PMID- 29323279 TI - Structural basis of TRPV5 channel inhibition by econazole revealed by cryo-EM. AB - The transient receptor potential vanilloid 5 (TRPV5) channel is a member of the transient receptor potential (TRP) channel family, which is highly selective for Ca2+, that is present primarily at the apical membrane of distal tubule epithelial cells in the kidney and plays a key role in Ca2+ reabsorption. Here we present the structure of the full-length rabbit TRPV5 channel as determined using cryo-EM in complex with its inhibitor econazole. This structure reveals that econazole resides in a hydrophobic pocket analogous to that occupied by phosphatidylinositides and vanilloids in TRPV1, thus suggesting conserved mechanisms for ligand recognition and lipid binding among TRPV channels. The econazole-bound TRPV5 structure adopts a closed conformation with a distinct lower gate that occludes Ca2+ permeation through the channel. Structural comparisons between TRPV5 and other TRPV channels, complemented with molecular dynamics (MD) simulations of the econazole-bound TRPV5 structure, allowed us to gain mechanistic insight into TRPV5 channel inhibition by small molecules. PMID- 29323281 TI - Bap (Sil1) regulates the molecular chaperone BiP by coupling release of nucleotide and substrate. AB - BiP is the endoplasmic member of the Hsp70 family. BiP is regulated by several co chaperones including the nucleotide-exchange factor (NEF) Bap (Sil1 in yeast). Bap is a two-domain protein. The interaction of the Bap C-terminal domain with the BiP ATPase domain is sufficient for its weak NEF activity. However, stimulation of the BiP ATPase activity requires full-length Bap, suggesting a complex interplay of these two factors. Here, single-molecule FRET experiments with mammalian proteins reveal that Bap affects the conformation of both BiP domains, including the lid subdomain, which is important for substrate binding. The largely unstructured Bap N-terminal domain promotes the substrate release from BiP. Thus, Bap is a conformational regulator affecting both nucleotide and substrate interactions. The preferential interaction with BiP in its ADP state places Bap at a late stage of the chaperone cycle, in which it coordinates release of substrate and ADP, thereby resetting BiP for ATP and substrate binding. PMID- 29323283 TI - NSMB at 25. PMID- 29323282 TI - MLL2 conveys transcription-independent H3K4 trimethylation in oocytes. AB - Histone 3 K4 trimethylation (depositing H3K4me3 marks) is typically associated with active promoters yet paradoxically occurs at untranscribed domains. Research to delineate the mechanisms of targeting H3K4 methyltransferases is ongoing. The oocyte provides an attractive system to investigate these mechanisms, because extensive H3K4me3 acquisition occurs in nondividing cells. We developed low-input chromatin immunoprecipitation to interrogate H3K4me3, H3K27ac and H3K27me3 marks throughout oogenesis. In nongrowing oocytes, H3K4me3 was restricted to active promoters, but as oogenesis progressed, H3K4me3 accumulated in a transcription independent manner and was targeted to intergenic regions, putative enhancers and silent H3K27me3-marked promoters. Ablation of the H3K4 methyltransferase gene Mll2 resulted in loss of transcription-independent H3K4 trimethylation but had limited effects on transcription-coupled H3K4 trimethylation or gene expression. Deletion of Dnmt3a and Dnmt3b showed that DNA methylation protects regions from acquiring H3K4me3. Our findings reveal two independent mechanisms of targeting H3K4me3 to genomic elements, with MLL2 recruited to unmethylated CpG-rich regions independently of transcription. PMID- 29323284 TI - Phases and rates of iron and magnetism changes during paddy soil development on calcareous marine sediment and acid Quaternary red-clay. AB - Dynamic changes in Fe oxides and magnetic properties during natural pedogenesis are well documented, but variations and controls of Fe and magnetism changes during anthropedogenesis of paddy soils strongly affected by human activities remain poorly understood. We investigated temporal changes in different Fe pools and magnetic parameters in soil profiles from two contrasting paddy soil chronosequences developed on calcareous marine sediment and acid Quaternary red clay in Southern China to understand the directions, phases and rates of Fe and magnetism evolution in Anthrosols. Results showed that paddy soil evolution under the influence of artificial submergence and drainage caused changes in soil moisture regimes and redox conditions with both time and depth that controlled Fe transport and redistribution, leading to increasing profile differentiation of Fe oxides, rapid decrease of magnetic parameters, and formation of diagnostic horizons and features, irrespective of the different parent materials. However, the initial parent material characteristics (pH, Fe content and composition, weathering degree and landscape positions) exerted a strong influence on the rates and trajectories of Fe oxides evolution as well as the phases and rates of magnetism changes. This influence diminished with time as prolonged rice cultivation drove paddy soil evolving to common pedogenic features. PMID- 29323285 TI - A set of synthetic versatile genetic control elements for the efficient expression of genes in Actinobacteria. AB - The design and engineering of secondary metabolite gene clusters that are characterized by complicated genetic organization, require the development of collections of well-characterized genetic control elements that can be reused reliably. Although a few intrinsic terminators and RBSs are used routinely, their translation and termination efficiencies have not been systematically studied in Actinobacteria. Here, we analyzed the influence of the regions surrounding RBSs on gene expression in these bacteria. We demonstrated that inappropriate RBSs can reduce the expression efficiency of a gene to zero. We developed a genetic device - an in vivo RBS-selector - that allows selection of an optimal RBS for any gene of interest, enabling rational control of the protein expression level. In addition, a genetic tool that provides the opportunity for measurement of termination efficiency was developed. Using this tool, we found strong terminators that lead to a 17-100-fold reduction in downstream expression and are characterized by sufficient sequence diversity to reduce homologous recombination when used with other elements. For the first time, a C-terminal degradation tag was employed for the control of protein stability in Streptomyces. Finally, we describe a collection of regulatory elements that can be used to control metabolic pathways in Actinobacteria. PMID- 29323286 TI - Conditional punishment is a double-edged sword in promoting cooperation. AB - Punishment is widely recognized as an effective approach for averting from exploitation by free-riders in human society. However, punishment is costly, and thus rational individuals are unwilling to take the punishing action, resulting in the second-order free-rider problem. Recent experimental study evidences that individuals prefer conditional punishment, and their punishing decision depends on other members' punishing decisions. In this work, we thus propose a theoretical model for conditional punishment and investigate how such conditional punishment influences cooperation in the public goods game. Considering conditional punishers only take the punishing action when the number of unconditional punishers exceeds a threshold number, we demonstrate that such conditional punishment induces the effect of a double-edged sword on the evolution of cooperation both in well-mixed and structured populations. Specifically, when it is relatively easy for conditional punishers to engage in the punishment activity corresponding to a low threshold value, cooperation can be promoted in comparison with the case without conditional punishment. Whereas when it is relatively difficult for conditional punishers to engage in the punishment activity corresponding to a high threshold value, cooperation is inhibited in comparison with the case without conditional punishment. Moreover, we verify that such double-edged sword effect exists in a wide range of model parameters and can be still observed in other different punishment regimes. PMID- 29323288 TI - Impacts of simulated erosion and soil amendments on greenhouse gas fluxes and maize yield in Miamian soil of central Ohio. AB - Erosion-induced topsoil loss is a threat to sustainable productivity. Topsoil removal from, or added to, the existing surface is an efficient technique to simulate on-site soil erosion and deposition. A 15-year simulated erosion was conducted at Waterman Farm of Ohio State University to assess impacts of topsoil depth on greenhouse gas (GHG) emissions and maize yield. Three topsoil treatments were investigated: 20 cm topsoil removal, 20 cm topsoil addition, and undisturbed control. Results show that the average global warming potential (GWP) (Mg CO2 Eq ha-1 growing season-1) from the topsoil removal plot (18.07) exhibited roughly the same value as that from the undisturbed control plot (18.11), but declined evidently from the topsoil addition plot (10.58). Maize yield decreased by 51% at the topsoil removal plot, while increased by 47% at the topsoil addition plot, when compared with the undisturbed control (7.45 Mg ha-1). The average GWP of erosion-deposition process was 21% lower than that of the undisturbed control, but that greenhouse gas intensity (GHGI) was 22% higher due to lower yields from the topsoil removal plot. Organic manure application enhanced GWP by 15%, and promoted maize yield by 18%, but brought a small reduction GHGI (3%) against the N-fertilizer application. PMID- 29323287 TI - Disposition of a Glucose Load into Hepatic Glycogen by Direct and Indirect Pathways in Juvenile Seabass and Seabream. AB - In carnivorous fish, conversion of a glucose load to hepatic glycogen is widely used to assess their metabolic flexibility towards carbohydrate utilization, but the activities of direct and indirect pathways in this setting are unclear. We assessed the conversion of an intraperitoneal glucose load (2 g.kg-1) enriched with [U-13C6]glucose to hepatic glycogen in juvenile seabass and seabream. 13C NMR analysis of glycogen was used to determine the contribution of the load to glycogen synthesis via direct and indirect pathways at 48-hr post-injection. For seabass, [U-13C6]glucose was accompanied by deuterated water and 2H-NMR analysis of glycogen 2H-enrichment, allowing endogenous substrate contributions to be assessed as well. For fasted seabass and seabream, 47 +/- 5% and 64 +/- 10% of glycogen was synthesized from the load, respectively. Direct and indirect pathways contributed equally (25 +/- 3% direct, 21 +/- 1% indirect for seabass; 35 +/- 7% direct, 29 +/- 4% indirect for seabream). In fasted seabass, integration of 2H- and 13C-NMR analysis indicated that endogenous glycerol and anaplerotic substrates contributed an additional 7 +/- 2% and 7 +/- 1%, respectively. In fed seabass, glucose load contributions were residual and endogenous contributions were negligible. Concluding, direct and indirect pathways contributed equally and substantially to fasting hepatic glycogen repletion from a glucose load in juvenile seabream and seabass. PMID- 29323289 TI - Hypertension: New US blood-pressure guidelines - who asked the patients? PMID- 29323290 TI - Clonal analysis of lineage fate in native haematopoiesis. AB - Haematopoiesis, the process of mature blood and immune cell production, is functionally organized as a hierarchy, with self-renewing haematopoietic stem cells and multipotent progenitor cells sitting at the very top. Multiple models have been proposed as to what the earliest lineage choices are in these primitive haematopoietic compartments, the cellular intermediates, and the resulting lineage trees that emerge from them. Given that the bulk of studies addressing lineage outcomes have been performed in the context of haematopoietic transplantation, current models of lineage branching are more likely to represent roadmaps of lineage potential than native fate. Here we use transposon tagging to clonally trace the fates of progenitors and stem cells in unperturbed haematopoiesis. Our results describe a distinct clonal roadmap in which the megakaryocyte lineage arises largely independently of other haematopoietic fates. Our data, combined with single-cell RNA sequencing, identify a functional hierarchy of unilineage- and oligolineage-producing clones within the multipotent progenitor population. Finally, our results demonstrate that traditionally defined long-term haematopoietic stem cells are a significant source of megakaryocyte-restricted progenitors, suggesting that the megakaryocyte lineage is the predominant native fate of long-term haematopoietic stem cells. Our study provides evidence for a substantially revised roadmap for unperturbed haematopoiesis, and highlights unique properties of multipotent progenitors and haematopoietic stem cells in situ. PMID- 29323291 TI - Neurexin controls plasticity of a mature, sexually dimorphic neuron. AB - During development and adulthood, brain plasticity is evident at several levels, from synaptic structure and function to the outgrowth of dendrites and axons. Whether and how sex impinges on neuronal plasticity is poorly understood. Here we show that the sex-shared GABA (gamma-aminobutyric acid)-releasing DVB neuron in Caenorhabditis elegans displays experience-dependent and sexually dimorphic morphological plasticity, characterized by the stochastic and dynamic addition of multiple neurites in adult males. These added neurites enable synaptic rewiring of the DVB neuron and instruct a functional switch of the neuron that directly modifies a step of male mating behaviour. Both DVB neuron function and male mating behaviour can be altered by experience and by manipulation of postsynaptic activity. The outgrowth of DVB neurites is promoted by presynaptic neurexin and antagonized by postsynaptic neuroligin, revealing a non-conventional activity and mode of interaction of these conserved, human-disease-relevant factors. PMID- 29323292 TI - Bright triplet excitons in caesium lead halide perovskites. AB - Nanostructured semiconductors emit light from electronic states known as excitons. For organic materials, Hund's rules state that the lowest-energy exciton is a poorly emitting triplet state. For inorganic semiconductors, similar rules predict an analogue of this triplet state known as the 'dark exciton'. Because dark excitons release photons slowly, hindering emission from inorganic nanostructures, materials that disobey these rules have been sought. However, despite considerable experimental and theoretical efforts, no inorganic semiconductors have been identified in which the lowest exciton is bright. Here we show that the lowest exciton in caesium lead halide perovskites (CsPbX3, with X = Cl, Br or I) involves a highly emissive triplet state. We first use an effective-mass model and group theory to demonstrate the possibility of such a state existing, which can occur when the strong spin-orbit coupling in the conduction band of a perovskite is combined with the Rashba effect. We then apply our model to CsPbX3 nanocrystals, and measure size- and composition-dependent fluorescence at the single-nanocrystal level. The bright triplet character of the lowest exciton explains the anomalous photon-emission rates of these materials, which emit about 20 and 1,000 times faster than any other semiconductor nanocrystal at room and cryogenic temperatures, respectively. The existence of this bright triplet exciton is further confirmed by analysis of the fine structure in low-temperature fluorescence spectra. For semiconductor nanocrystals, which are already used in lighting, lasers and displays, these excitons could lead to materials with brighter emission. More generally, our results provide criteria for identifying other semiconductors that exhibit bright excitons, with potential implications for optoelectronic devices. PMID- 29323293 TI - Precision editing of the gut microbiota ameliorates colitis. AB - Inflammatory diseases of the gastrointestinal tract are frequently associated with dysbiosis, characterized by changes in gut microbial communities that include an expansion of facultative anaerobic bacteria of the Enterobacteriaceae family (phylum Proteobacteria). Here we show that a dysbiotic expansion of Enterobacteriaceae during gut inflammation could be prevented by tungstate treatment, which selectively inhibited molybdenum-cofactor-dependent microbial respiratory pathways that are operational only during episodes of inflammation. By contrast, we found that tungstate treatment caused minimal changes in the microbiota composition under homeostatic conditions. Notably, tungstate-mediated microbiota editing reduced the severity of intestinal inflammation in mouse models of colitis. We conclude that precision editing of the microbiota composition by tungstate treatment ameliorates the adverse effects of dysbiosis in the inflamed gut. PMID- 29323294 TI - Terminal Pleistocene Alaskan genome reveals first founding population of Native Americans. AB - Despite broad agreement that the Americas were initially populated via Beringia, the land bridge that connected far northeast Asia with northwestern North America during the Pleistocene epoch, when and how the peopling of the Americas occurred remains unresolved. Analyses of human remains from Late Pleistocene Alaska are important to resolving the timing and dispersal of these populations. The remains of two infants were recovered at Upward Sun River (USR), and have been dated to around 11.5 thousand years ago (ka). Here, by sequencing the USR1 genome to an average coverage of approximately 17 times, we show that USR1 is most closely related to Native Americans, but falls basal to all previously sequenced contemporary and ancient Native Americans. As such, USR1 represents a distinct Ancient Beringian population. Using demographic modelling, we infer that the Ancient Beringian population and ancestors of other Native Americans descended from a single founding population that initially split from East Asians around 36 +/- 1.5 ka, with gene flow persisting until around 25 +/- 1.1 ka. Gene flow from ancient north Eurasians into all Native Americans took place 25-20 ka, with Ancient Beringians branching off around 22-18.1 ka. Our findings support a long term genetic structure in ancestral Native Americans, consistent with the Beringian 'standstill model'. We show that the basal northern and southern Native American branches, to which all other Native Americans belong, diverged around 17.5-14.6 ka, and that this probably occurred south of the North American ice sheets. We also show that after 11.5 ka, some of the northern Native American populations received gene flow from a Siberian population most closely related to Koryaks, but not Palaeo-Eskimos, Inuits or Kets, and that Native American gene flow into Inuits was through northern and not southern Native American groups. Our findings further suggest that the far-northern North American presence of northern Native Americans is from a back migration that replaced or absorbed the initial founding population of Ancient Beringians. PMID- 29323296 TI - A rapid decrease in the rotation rate of comet 41P/Tuttle-Giacobini-Kresak. AB - Cometary outgassing can produce torques that change the spin state of the cometary nucleus, which in turn influences the evolution and lifetime of the comet. If these torques increase the rate of rotation to the extent that centripetal forces exceed the material strength of the nucleus, the comet can fragment. Torques that slow down the rotation can cause the spin state to become unstable, but if the torques persist the nucleus can eventually reorient itself and the rotation rate can increase again. Simulations predict that most comets go through a short phase of rapid changes in spin state, after which changes occur gradually over longer times. Here we report observations of comet 41P/Tuttle Giacobini-Kresak during its close approach to Earth (0.142 astronomical units, approximately 21 million kilometres, on 1 April 2017) that reveal a rapid decrease in rotation rate. Between March and May 2017, the apparent rotation period of the nucleus increased from 20 hours to more than 46 hours-a rate of change of more than an order of magnitude larger than has hitherto been measured. This phenomenon must have been caused by the gas emission from the comet aligning in such a way that it produced an anomalously strong torque that slowed the spin rate of the nucleus. The behaviour of comet 41P/Tuttle-Giacobini-Kresak suggests that it is in a distinct evolutionary state and that its rotation may be approaching the point of instability. PMID- 29323295 TI - Alcohol and endogenous aldehydes damage chromosomes and mutate stem cells. AB - Haematopoietic stem cells renew blood. Accumulation of DNA damage in these cells promotes their decline, while misrepair of this damage initiates malignancies. Here we describe the features and mutational landscape of DNA damage caused by acetaldehyde, an endogenous and alcohol-derived metabolite. This damage results in DNA double-stranded breaks that, despite stimulating recombination repair, also cause chromosome rearrangements. We combined transplantation of single haematopoietic stem cells with whole-genome sequencing to show that this damage occurs in stem cells, leading to deletions and rearrangements that are indicative of microhomology-mediated end-joining repair. Moreover, deletion of p53 completely rescues the survival of aldehyde-stressed and mutated haematopoietic stem cells, but does not change the pattern or the intensity of genome instability within individual stem cells. These findings characterize the mutation of the stem-cell genome by an alcohol-derived and endogenous source of DNA damage. Furthermore, we identify how the choice of DNA-repair pathway and a stringent p53 response limit the transmission of aldehyde-induced mutations in stem cells. PMID- 29323297 TI - An extreme magneto-ionic environment associated with the fast radio burst source FRB 121102. AB - Fast radio bursts are millisecond-duration, extragalactic radio flashes of unknown physical origin. The only known repeating fast radio burst source-FRB 121102-has been localized to a star-forming region in a dwarf galaxy at redshift 0.193 and is spatially coincident with a compact, persistent radio source. The origin of the bursts, the nature of the persistent source and the properties of the local environment are still unclear. Here we report observations of FRB 121102 that show almost 100 per cent linearly polarized emission at a very high and variable Faraday rotation measure in the source frame (varying from +1.46 * 105 radians per square metre to +1.33 * 105 radians per square metre at epochs separated by seven months) and narrow (below 30 microseconds) temporal structure. The large and variable rotation measure demonstrates that FRB 121102 is in an extreme and dynamic magneto-ionic environment, and the short durations of the bursts suggest a neutron star origin. Such large rotation measures have hitherto been observed only in the vicinities of massive black holes (larger than about 10,000 solar masses). Indeed, the properties of the persistent radio source are compatible with those of a low-luminosity, accreting massive black hole. The bursts may therefore come from a neutron star in such an environment or could be explained by other models, such as a highly magnetized wind nebula or supernova remnant surrounding a young neutron star. PMID- 29323300 TI - Chemists go green to make better blue jeans. PMID- 29323299 TI - Rotation in [C ii]-emitting gas in two galaxies at a redshift of 6.8. AB - The earliest galaxies are thought to have emerged during the first billion years of cosmic history, initiating the ionization of the neutral hydrogen that pervaded the Universe at this time. Studying this 'epoch of reionization' involves looking for the spectral signatures of ancient galaxies that are, owing to the expansion of the Universe, now very distant from Earth and therefore exhibit large redshifts. However, finding these spectral fingerprints is challenging. One spectral characteristic of ancient and distant galaxies is strong hydrogen-emission lines (known as Lyman-alpha lines), but the neutral intergalactic medium that was present early in the epoch of reionization scatters such Lyman-alpha photons. Another potential spectral identifier is the line at wavelength 157.4 micrometres of the singly ionized state of carbon (the [C ii] lambda = 157.74 MUm line), which signifies cooling gas and is expected to have been bright in the early Universe. However, so far Lyman-alpha-emitting galaxies from the epoch of reionization have demonstrated much fainter [C ii] luminosities than would be expected from local scaling relations, and searches for the [C ii] line in sources without Lyman-alpha emission but with photometric redshifts greater than 6 (corresponding to the first billion years of the Universe) have been unsuccessful. Here we identify [C ii] lambda = 157.74 MUm emission from two sources that we selected as high-redshift candidates on the basis of near infrared photometry; we confirm that these sources are two galaxies at redshifts of z = 6.8540 +/- 0.0003 and z = 6.8076 +/- 0.0002. Notably, the luminosity of the [C ii] line from these galaxies is higher than that found previously in star forming galaxies with redshifts greater than 6.5. The luminous and extended [C ii] lines reveal clear velocity gradients that, if interpreted as rotation, would indicate that these galaxies have similar dynamic properties to the turbulent yet rotation-dominated disks that have been observed in Halpha-emitting galaxies two billion years later, at 'cosmic noon'. PMID- 29323302 TI - Typhoid vaccine, dementia research and discrimination in science. PMID- 29323301 TI - Scientific ballooning takes off. PMID- 29323298 TI - A metabolic function of FGFR3-TACC3 gene fusions in cancer. AB - Chromosomal translocations that generate in-frame oncogenic gene fusions are notable examples of the success of targeted cancer therapies. We have previously described gene fusions of FGFR3-TACC3 (F3-T3) in 3% of human glioblastoma cases. Subsequent studies have reported similar frequencies of F3-T3 in many other cancers, indicating that F3-T3 is a commonly occuring fusion across all tumour types. F3-T3 fusions are potent oncogenes that confer sensitivity to FGFR inhibitors, but the downstream oncogenic signalling pathways remain unknown. Here we show that human tumours with F3-T3 fusions cluster within transcriptional subgroups that are characterized by the activation of mitochondrial functions. F3 T3 activates oxidative phosphorylation and mitochondrial biogenesis and induces sensitivity to inhibitors of oxidative metabolism. Phosphorylation of the phosphopeptide PIN4 is an intermediate step in the signalling pathway of the activation of mitochondrial metabolism. The F3-T3-PIN4 axis triggers the biogenesis of peroxisomes and the synthesis of new proteins. The anabolic response converges on the PGC1alpha coactivator through the production of intracellular reactive oxygen species, which enables mitochondrial respiration and tumour growth. These data illustrate the oncogenic circuit engaged by F3-T3 and show that F3-T3-positive tumours rely on mitochondrial respiration, highlighting this pathway as a therapeutic opportunity for the treatment of tumours with F3-T3 fusions. We also provide insights into the genetic alterations that initiate the chain of metabolic responses that drive mitochondrial metabolism in cancer. PMID- 29323303 TI - How to see a memory. PMID- 29323306 TI - Combinations on trial. PMID- 29323304 TI - Tooth scratches reveal new clues to pterosaur diets. PMID- 29323307 TI - Images of the year. PMID- 29323308 TI - Climate scientists unlock secrets of 'blue carbon'. PMID- 29323309 TI - Gene-drive e-mails were legally requested. PMID- 29323311 TI - Germany vs Elsevier: universities win temporary journal access after refusing to pay fees. PMID- 29323312 TI - Test climate targets using fragile ecosystems. PMID- 29323313 TI - Mystery funders of Arecibo radio telescope can celebrate an early success. PMID- 29323314 TI - Gender pay gap persists. PMID- 29323315 TI - Tumour lymph vessels boost immunotherapy. PMID- 29323316 TI - A quality-control test for predatory journals. PMID- 29323317 TI - Funders should mandate open citations. PMID- 29323318 TI - Protect the high seas from harm. PMID- 29323319 TI - Silicon gains ground in quantum-computing race. PMID- 29323320 TI - Telling details of breast-cancer recurrence. PMID- 29323321 TI - When sickness interrupts science. PMID- 29323322 TI - Neuronal plasticity in nematode worms. PMID- 29323323 TI - Rule-breaking perovskites. PMID- 29323325 TI - An ode to gene edits that prevent deafness. PMID- 29323326 TI - Male scientists given more opportunities to address colloquia. PMID- 29323327 TI - Indonesian scientists embrace preprint server. PMID- 29323328 TI - Exoplanet science 2.0. PMID- 29323329 TI - Cometary spin-down. PMID- 29323331 TI - Dogma-breaking catalysis. PMID- 29323330 TI - Step aside CERN: There's a cheaper way to break open physics. PMID- 29323333 TI - Controlling lightwave in Riemann space by merging geometrical optics with transformation optics. AB - In geometrical optical design, we only need to choose a suitable combination of lenses, prims, and mirrors to design an optical path. It is a simple and classic method for engineers. However, people cannot design fantastical optical devices such as invisibility cloaks, optical wormholes, etc. by geometrical optics. Transformation optics has paved the way for these complicated designs. However, controlling the propagation of light by transformation optics is not a direct design process like geometrical optics. In this study, a novel mixed method for optical design is proposed which has both the simplicity of classic geometrical optics and the flexibility of transformation optics. This mixed method overcomes the limitations of classic optical design; at the same time, it gives intuitive guidance for optical design by transformation optics. Three novel optical devices with fantastic functions have been designed using this mixed method, including asymmetrical transmissions, bidirectional focusing, and bidirectional cloaking. These optical devices cannot be implemented by classic optics alone and are also too complicated to be designed by pure transformation optics. Numerical simulations based on both the ray tracing method and full-wave simulation method are carried out to verify the performance of these three optical devices. PMID- 29323334 TI - Unveiling the piezoelectric nature of polar alpha-phase P(VDF-TrFE) at quasi-two dimensional limit. AB - Piezoelectric response of P(VDF-TrFE), which is modulated by the dipole density due to the polarization switching on applying an electric field, allows it act as the fundamental components for electromechanical systems. As proposed since the 1970s, its polar alpha-phase is supposed to yield an enhanced piezoelectric activity. However, its experimental verification has never been reported, hampered by a substantial challenge for the achievement of a smooth, neat alpha phase film. Here, we prepare ultrathin crystalline alpha-phase P(VDF-TrFE) films on the AlOx/Al-coated SiO2/Si substrates via a solution-based approach at room temperature. Thus, we unveil the piezoelectric nature of the polar alpha-phase P(VDF-TrFE) at a quasi-two-dimensional limit. The obtained values of the relative morphological deformation, the local effective piezoelectric coefficient, and the electric field-induced strain reach up to 37 pm, -46.4 pm V-1, and 4.1%, respectively. Such a robust piezoelectric response is even higher than that of the beta-phase. Besides, the evolution of piezoelectricity, which is related to the piezoelectric properties of two polarization states, is also studied. Our work can enable the exploration of the prospective applications of polar alpha phase P(VDF-TrFE) films. PMID- 29323337 TI - Regulatory T cells as a new therapeutic target for atherosclerosis. AB - Atherosclerosis is an autoimmune disease caused by self- and non-self-antigens contributing to excessive activation of T and B cell immune responses. These responses further aggravate vascular infiammation and promote progression of atherosclerosis and vulnerability to plaques via releasing pro-infiammatory cytokines. Regulatory T cells (Tregs) as the major immunoregulatory cells, in particular, induce and maintain immune homeostasis and tolerance by suppressing the immune responses of various cells such as T and B cells, natural killer (NK) cells, monocytes, and dendritic cells (DCs), as well as by secreting inhibitory cytokines interleukin (IL)-10, IL-35 and transcription growth factor beta (TGF beta) in both physiological and pathological states. Numerous evidence demonstrates that reduced numbers and dysfunction of Treg may be involveved in atherosclerosis pathogenesis. Increasing or restoring the numbers and improving the immunosuppressive capacity of Tregs may serve as a fundamental immunotherapy to treat atherosclerotic cardiovascular diseases. In this article, we briefiy present current knowledge of Treg subsets, summarize the relationship between Tregs and atherosclerosis development, and discuss the possibilities of regulating Tregs for prevention of atherosclerosis pathogenesis and enhancement of plaque stability. Although the exact molecular mechanisms of Treg-mediated protection against atherosclerosis remain to be elucidated, the strategies for targeting the regulation of Tregs may provide specific and significant approaches for the prevention and treatment of atherosclerotic cardiovascular diseases. PMID- 29323335 TI - Tanshinol alleviates impaired bone formation by inhibiting adipogenesis via KLF15/PPARgamma2 signaling in GIO rats. AB - Glucocorticoid (GC)-induced osteoporosis (GIO) is characterized by impaired bone formation, which can be alleviated by tanshinol, an aqueous polyphenol isolated from Salvia miltiorrhiza Bunge. In this study we investigated the molecular mechanisms underlying GC-induced modulation of osteogenesis as well as the possibility of using tanshinol to interfere with GIO. Female SD rats aged 4 months were orally administered distilled water (Con), prednisone (GC, 5 mg.kg 1.d-1), GC plus tanshinol (Tan, 16 mg.kg-1.d-1) or GC plus resveratrol (Res, 5 mg.kg-1.d-1) for 14 weeks. After the rats were sacrificed, samples of bone tissues were collected. The changes in bone formation were assessed using Micro CT, histomorphometry, and biomechanical assays. Expression of Kruppel-like factor 15 (KLF15), peroxisome proliferator-activated receptor gamma 2 (PPARgamma 2) and other signaling proteins in skeletal tissue was measured with Western blotting and quantitative RT-PCR. GC treatment markedly increased the expression of KLF15, PPARgamma2, C/EBPalpha and aP2, which were related to adipogenesis, upregulated FoxO3a pathway proteins (FoxO3a and Gadd45a), and suppressed the canonical Wnt signaling (beta-catenin and Axin2), which was required for osteogenesis. Thus, GC significantly decreased bone mass and bone quality. Co-treatment with Tan or Res effectively counteracted GC-impaired bone formation, suppressed GC-induced adipogenesis, and restored abnormal expression of the signaling molecules in GIO rats. We conclude that tanshinol counteracts GC-decreased bone formation by inhibiting marrow adiposity via the KLF15/PPARgamma2/FoxO3a/Wnt pathway. PMID- 29323336 TI - Schisandrin ameliorates cognitive impairment and attenuates Abeta deposition in APP/PS1 transgenic mice: involvement of adjusting neurotransmitters and their metabolite changes in the brain. AB - Neurotransmitters (NTs) in the brain are involved in neurodegenerative diseases, such as Alzheimer's disease (AD). Schisandrin is a major ingredient of Schisandra chinensis (Turcz.) Baill and has been used for the treatment of AD. In this study we examined the therapeutic effects of schisandrin in APP/PS1 transgenic mice, and correlated the beneficial effects on cognitive impairment with the adjustments in NTs and their metabolites in the mouse brains. APP/PS1 mice were treated with schisandrin (2 mg.kg-1.d-1, ip) for 2 weeks. In Morris Water Maze test; untreated APP/PS1 mice displayed significant cognitive impairment compared with normal mice; schisandrin administration ameliorated the cognitive impairment and significantly decreased Abeta deposition in the hippocampus. In order to assess the effects of schisandrin on NTs and their metabolites, we developed a rapid and sensitive UPLC-MS/MS method for simultaneous determination of serotonin, 5-hydroxyindole acetic acid, dopamine, norepinephrine, gamma aminobutyric acid, glutamic acid, homovanillic acid, 3,4-dihydroxyphenylacetic acid and acetylcholine in mouse brains. This method conformed to methodology validation requirements. We found that there were statistically significant differences in these NTs and their metabolites between untreated APP/PS1 mice and normal mice, whereas schisandrin administration restored the abnormal NTs and their metabolites levels. These results suggest that schisandrin could alter the levels of these NTs and their metabolites in the brain, thus ameliorating learning and memory impairments in APP/PS1 mice. PMID- 29323338 TI - Ulinastatin attenuates LPS-induced inflammation in mouse macrophage RAW264.7 cells by inhibiting the JNK/NF-kappaB signaling pathway and activating the PI3K/Akt/Nrf2 pathway. AB - Ulinastatin (UTI) is a broad-spectrum serine protease inhibitor isolated and purified from human urine with strong anti-inflammatory and cytoprotective actions, which is widely used for the treatment of various diseases, such as pancreatitis and sepsis. Although the therapeutic effects of UTI are reported to be associated with a variety of mechanisms, the signaling pathways mediating the anti-inflammatory action of UTI remain to be elucidated. In the present study we carried out a systematic study on the anti-inflammatory and anti-oxidative mechanisms of UTI and their relationships in LPS-treated RAW264.7 cells. Pretreatment with UTI (1000 and 5000 U/mL) dose-dependently decreased the mRNA levels of pro-inflammatory cytokines (IL-1beta, IL-6, TNF-alpha, iNOS) and upregulated anti-inflammatory cytokines (IL-10 and TGF-beta1) in LPS-treated RAW264.7 cells. UTI pretreatment significantly inhibited the nuclear translocation of NF-kappaB by preventing the degradation of IkappaB-alpha. UTI pretreatment only markedly inhibited the phosphorylation of JNK at Thr183, but it did not affect the phosphorylation of JNK at Tyr185, ERK-1/2 and p38 MAPK; JNK was found to function upstream of the IkappaB-alpha/NF-kappaB signaling pathway. Furthermore, UTI pretreatment significantly suppressed LPS-induced ROS production by activating PI3K/Akt pathways and the nuclear translocation of Nrf2 via promotion of p62-associated Keap1 degradation. However, JNK was not involved in mediating the anti-oxidative stress effects of UTI. In summary, this study shows that UTI exerts both anti-inflammatory and anti-oxidative effects by targeting the JNK/NF-kappaB and PI3K/Akt/Nrf2 pathways. PMID- 29323339 TI - A green method to leach vanadium and chromium from residue using NaOH-H2O2. AB - Hydrogen peroxide as an oxidant was applied in leaching of vanadium and chromium in concentrated NaOH solution. Under the optimal reaction conditions (the liquid to solid ratio of 4.0 ml/g, residue particle size of <200 mesh, the mass ratio of NaOH-to-residue of 1.0 g/g, the volume ratio of H2O2-to-residue of 1.2 ml/g, reaction temperature of 90 degrees C and reaction time of 120 min), the leaching efficiency of vanadium and chromium could reach up to 98.60% and 86.49%, respectively. Compared with the current liquid-phase oxidation technologies, the reaction temperature was 90-310 degrees C lower, and the NaOH concentration of the reaction medium is lower by more than 50 wt% (the mass ratio of NaOH-to residue of 1.0 g/g equals to concentration of 20 wt%). The kinetics study revealed that leaching process of chromium and vanadium were interpreted with shrinking core model under chemical reaction control. The apparent activation energy of chromium and vanadium dissolution was 22.19 kJ/mol and 6.95 kJ/mol, respectively. PMID- 29323340 TI - Osteoarthritis in 2017: Latest advances in the management of knee OA. PMID- 29323341 TI - Rheumatoid arthritis in 2017: Protective dietary and hormonal factors brought to light. PMID- 29323342 TI - Paediatric rheumatology in 2017: Child-centred research is the key to progress. PMID- 29323345 TI - Osteoporosis in 2017: Addressing the crisis in the treatment of osteoporosis. PMID- 29323346 TI - Inflammation in 2017: Connectivity to other fields brings new ideas. PMID- 29323347 TI - Rheumatoid arthritis: IFNgamma drives synovial tissue remodelling. PMID- 29323343 TI - Targeting lymphatic function as a novel therapeutic intervention for rheumatoid arthritis. AB - Although clinical outcomes for patients with rheumatoid arthritis (RA) have greatly improved with the use of biologic and conventional DMARDs, approximately 40% of patients do not achieve primary clinical outcomes in randomized trials, and only a small proportion achieve lasting remission. Over the past decade, studies in murine models point to the critical role of the lymphatic system in the pathogenesis and therapy of inflammatory-erosive arthritis, presumably by the removal of catabolic factors, cytokines and inflammatory cells from the inflamed synovium. Murine studies demonstrate that lymphatic drainage increases at the onset of inflammatory-erosive arthritis but, as inflammation progresses to a more chronic phase, lymphatic clearance declines and both structural and cellular changes are observed in the draining lymph node. Specifically, chronic damage to the lymphatic vessel from persistent inflammation results in loss of lymphatic vessel contraction followed by lymph node collapse, reduced lymphatic drainage, and ultimately severe synovitis and joint erosion. Notably, clinical pilot studies in patients with RA report lymph node changes following treatment, and thus draining lymphatic vessels and nodes could represent a potential biomarker of arthritis activity and response to therapy. Most importantly, targeting lymphatics represents an innovative strategy for therapeutic intervention for RA. PMID- 29323344 TI - Updating osteoimmunology: regulation of bone cells by innate and adaptive immunity. AB - Osteoimmunology encompasses all aspects of the cross-regulation of bone and the immune system, including various cell types, signalling pathways, cytokines and chemokines, under both homeostatic and pathogenic conditions. A number of key areas are of increasing interest and relevance to osteoimmunology researchers. Although rheumatoid arthritis has long been recognized as one of the most common autoimmune diseases to affect bone integrity, researchers have focused increased attention on understanding how molecular triggers and innate signalling pathways (such as Toll-like receptors and purinergic signalling pathways) related to pathogenic and/or commensal microbiota are relevant to bone biology and rheumatic diseases. Additionally, although most discussions relating to osteoimmune regulation of homeostasis and disease have focused on the effects of adaptive immune responses on bone, evidence exists of the regulation of immune cells by bone cells, a concept that is consistent with the established role of the bone marrow in the development and homeostasis of the immune system. The active regulation of immune cells by bone cells is an interesting emerging component of investigations that seek to understand how to control immune-associated diseases of the bone and joints. PMID- 29323349 TI - Establishing stability: exploring the meaning of 'home' for women who have experienced intimate partner violence. AB - There is evidence that involuntary housing instability may undermine health and well-being. For women who have experienced intimate partner violence (IPV), achieving stability is likely as important for other groups, but can be challenging. Through our analysis of 41 interviews with women who have experienced low income and IPV, we argue that definitions of housing stability are multifaceted and for many centred on a shared understanding of the importance of creating an environment of "home". We found that obtaining housing that satisfied material needs was important to women. However, in asking women to define what housing stability meant to them, we found that other factors related to ontological security and the home, such as safety, community, and comfort, contributed to women's experiences of stability. Through our discussion of the importance these women placed on establishing stable homes, we argue that future research on women's experiences with housing stability and IPV should include definitions of stability that capture both material security and women's experiences with building emotionally stable homes. PMID- 29323348 TI - Mouse Antibody of IgM Class is Prone to Non-Enzymatic Cleavage between CH1 and CH2 Domains. AB - IgM is a multivalent antibody which evolved as a first line defense of adaptive immunity. It consists of heavy and light chains assembled into a complex oligomer. In mouse serum there are two forms of IgM, a full-length and a truncated one. The latter contains MU' chain, which lacks a variable region. Although MU' chain was discovered many years ago, its origin has not yet been elucidated. Our results indicate that MU' chain is generated from a full-length heavy chain by non-enzymatic cleavage of the protein backbone. The cleavage occurred specifically after Asn209 and is prevented by mutating this residue into any other amino acid. The process requires the presence of other proteins, preferentially with an acidic isoelectric point, and is facilitated by neutral or alkaline pH. This unique characteristic of the investigated phenomenon distinguishes it from other, already described, Asn-dependent protein reactions. A single IgM molecule is able to bind up to 12 epitopes via its antigen binding fragments (Fabs). The cleavage at Asn209 generates truncated IgM molecules and free Fabs, resulting in a reduced IgM valence and probably affecting IgM functionality in vivo. PMID- 29323350 TI - Regionalization of housing policies? An exploratory study of Andalusia, Catalonia and the Basque Country. AB - The Spanish home ownership sector has been hit hard by the economic crisis. Repossessions stand at around half a million in the period from 2008 to 2014. This article investigates how the authorities, both at the level of the Spanish state and of the autonomous communities (regions), have responded to this problem. We investigated whether they assist troubled home owners and aim to design a less risky housing system, with more (social) rental housing. Our research in Catalonia, the Basque Country and Andalusia shows that Autonomous Communities are playing an increasingly important role in this matter. This finding fits well with theories on the formation of regional varieties of welfare, which indicate that flaws of the central governments in providing social welfare, are increasingly addressed by regions. The Basque Country seems to be on the way of designing the most comprehensive system of housing policies of the three regions, including a strong Right to Housing. All three regions regard the mobilisation of the large vacant dwelling stock as an important means to provide more affordable rental housing. However, the owners are often unwilling and the three regions have proposed drastic measures, such as fines and even temporary expropriations. The central government resists such measures, because they might interfere with the proper working of the country's financial system. It shows that certain policy competences can never be totally isolated from other policy fields and multi-level distribution of competences makes it all the more complex. PMID- 29323351 TI - Ethnic differences in realising desires to leave urban neighbourhoods. AB - Selective mobility into and out of urban neighbourhoods is one of the main driving forces of segregation. Earlier research has found group differences in who wants to leave or who leaves certain types of neighbourhoods. A factor that has received little attention so far is that some residents will have a desire to leave their neighbourhood, but are unable to do so. If there are differences between population groups in the realisation of desires to leave the neighbourhood, this might lead to involuntary segregation. This paper uses a unique combination of register data and survey data. We combine data from a large housing survey in the Netherlands (WoON) with longitudinal register data from the Netherlands (SSD) which contains individual-level information on residential mobility histories. This allows us to study whether households with a desire to leave their neighbourhood do realise this desire and which households are successful in leaving which neighbourhoods. A more thorough insight in who wants to leave which neighbourhoods but is unable to do so will contribute to a better understanding of selective mobility and segregation. We find that ethnic minorities and low-income households are less likely to realise a desire to leave their neighbourhood. We expected that ethnic minorities would be especially unsuccessful in realising desires to leave minority concentration neighbourhoods; however, for none of the ethnic groups we found an effect of neighbourhood ethnic composition on the realisation of desires to leave. PMID- 29323352 TI - The end of mass homeownership? Changes in labour markets and housing tenure opportunities across Europe. AB - With continued economic growth and expanding mortgage markets, until recently the pattern across advanced economies was of growing homeownership sectors. The Great Financial Crisis (GFC) has however, undercut this growth resulting in the contraction of homeownership access in many countries and the revival of private renting. This paper argues that these tenure changes are not solely a consequence of the GFC, and therefore, reversible once long-term growth returns. Rather, they are the consequences of more fundamental changes especially in labour markets. The very financialisation that fuelled the growth of homeownership has also led to a hollowing out of well-paid, secure jobs-exactly those that fit best with the taking of housing loans. We examine longer-term declines in labour market security across Europe from before the GFC, identifying an underlying correlation between deteriorated labour market conditions and homeownership access for young adults. While variations exist across European countries, there is evidence of common trends. We argue that the GFC both accelerated pre-existing labour insecurity dynamics and brought an end to offsetting such dynamics through the expansion of credit access with the likelihood of a return to an era of widespread homeownership growth starkly decreased. PMID- 29323353 TI - Housing system reform: the opinion of advisory boards versus political reality in the Netherlands. AB - This paper describes to what extent a more or less collective feeling of urgency to reform the Dutch housing market is addressed in the political arena. By doing that, it sheds some light on the effectiveness and influence of academic research and recommendations on the political decision making process. We conclude that the suggestion of several advisory bodies to start a serious reform of the housing system in the Netherlands is, due to coalition considerations, almost fully neglected by the Dutch Government. Although there is a common understanding among experts and interest organisations in the Netherlands that the current housing systems needs radical changes, coalition politics in the Netherlands are apparently more important to explain current housing policies. We conclude that the effectiveness and influence of academic research and recommendations on the political decision making process was quite modest in the last couple of years and try to explain the gap between academic research and political decision making on Dutch housing policy. PMID- 29323354 TI - Utility indifference pricing of insurance catastrophe derivatives. AB - We propose a model for an insurance loss index and the claims process of a single insurance company holding a fraction of the total number of contracts that captures both ordinary losses and losses due to catastrophes. In this model we price a catastrophe derivative by the method of utility indifference pricing. The associated stochastic optimization problem is treated by techniques for piecewise deterministic Markov processes. A numerical study illustrates our results. PMID- 29323355 TI - Competition between social and market renting: a theoretical application of the structure-conduct-performance paradigm. AB - Housing policies in many countries have become more market orientated as the role of governments has shifted from the direct supply and funding of non-market housing towards the role of a regulator and facilitator. Central to this development is the notion that providers of social housing have to become more competitive. Arguably, these social housing changes have important implications for the relationship between social and market rented housing and thus the rental market as a whole. Conceptual frameworks that facilitate the understanding of this relationship are sparse commodities. This paper seeks to develop a theoretical framework that can be used to shed light on the conditions, processes, and effects of the new relation between the two rental tenures from an economic competition viewpoint. Therefore, this paper adapts the structure conduct-performance paradigm to rented housing and discusses the framework's applicability and value on a theoretical level. PMID- 29323357 TI - The distribution of housing wealth in 16 European countries: accounting for institutional differences. AB - Housing wealth is the largest source of household wealth, but we know little about the distribution of housing wealth and how institutions have shaped this distribution. Subsidies for homeownership, privatisation of social housing and mortgage finance liberalisation are likely to have influenced the distribution of housing wealth in recent decades. To examine their impact, we describe housing wealth inequalities across occupational classes for two birth cohorts aged fifty and older. The analysis is conducted across 16 European countries with divergent welfare states and housing systems using the fourth wave of the survey of health, ageing and retirement in Europe (SHARE; 2011/2012). Our results indicate that the expansion of homeownership in a market-based housing system is associated with a more unequal distribution of housing wealth across occupational classes, as an increasing number of 'marginal' owners are drawn into precarious homeownership. Such a pattern is not found in housing wealth accumulation regimes with a less market-based provision of housing. When the state or the family drive homeownership expansion, a de-coupling of labour market income and housing consumption results in a more equal distribution of housing wealth. PMID- 29323358 TI - Solvency II solvency capital requirement for life insurance companies based on expected shortfall. AB - This paper examines the consequences for a life annuity insurance company if the solvency II solvency capital requirements (SCR) are calibrated based on expected shortfall (ES) instead of value-at-risk (VaR). We focus on the risk modules of the SCRs for the three risk classes equity risk, interest rate risk and longevity risk. The stress scenarios are determined using the calibration method proposed by EIOPA in 2014. We apply the stress-scenarios for these three risk classes to a fictitious life annuity insurance company. We find that for EIOPA's current quantile 99.5% of the VaR, the stress scenarios of the various risk classes based on ES are close to the stress scenarios based on VaR. Might EIOPA choose to calibrate the stress scenarios on a smaller quantile, the longevity SCR is relatively larger and the equity SCR is relatively smaller if ES is used instead of VaR. We derive the same conclusion if stress scenarios are determined with empirical stress scenarios. PMID- 29323359 TI - Scale, mergers and efficiency: the case of Dutch housing corporations. AB - The efficiency of social housing providers is a contentious issue. In the Netherlands, there is a widespread belief that housing corporations have substantial potential for efficiency improvements. A related question is whether scale influences efficiency, since recent decades have shown a trend of mergers among corporations. This paper offers a framework to assess the effects of scale and mergers on the efficiency of Dutch housing corporations by using both a data envelopment analysis and a stochastic frontier analysis, using panel data for 2001-2012. The results indicate that most housing corporations operate under diseconomies of scale, implying that merging would be undesirable in most cases. However, merging may have beneficial effects on pure technical efficiency as it forces organizations to reconsider existing practices. A data envelopment analysis indeed confirms this hypothesis, but these results cannot be replicated by a stochastic frontier analysis, meaning that the evidence for this effect is not robust. PMID- 29323360 TI - The mismatch between conventional house price modeling and regulated markets: insights from The Netherlands. AB - House price modeling has been frequently used to investigate the dynamics of housing markets, especially competitive markets; yet less attention has been given to markets that have experienced considerable interventions. The aim of this study is to demonstrate a mismatch between conventional house price models and the case of the Netherlands and to provide reasons of such mismatch. We first describe and classify the conventional house price models into asset-pricing house price model, stock-flow model, multi-period utility model, and repayment model. These models are subsequently applied to the Netherlands, where considerable government interventions took place. As expected, the empirical results are unsatisfactory to explain the Dutch house price development. The degree of mismatch of the repayment model and the multi-period utility model, however, seems to be fairly limited. PMID- 29323361 TI - Small population bias and sampling effects in stochastic mortality modelling. AB - We propose the use of parametric bootstrap methods to investigate the finite sample distribution of the maximum likelihood estimator for the parameter vector of a stochastic mortality model. Particular emphasis is placed on the effect that the size of the underlying population has on the distribution of the MLE in finite samples, and on the dependency structure of the resulting estimator: that is, the dependencies between estimators for the age, period and cohort effects in our model. In addition, we study the distribution of a likelihood ratio test statistic where we test a null hypothesis about the true parameters in our model. Finally, we apply the LRT to the cohort effects estimated from observed mortality rates for females in England and Wales and males in Scotland. PMID- 29323362 TI - A pH responsive AIE probe for enzyme assays. AB - By combining leucine (Leu) and tetraphenylethene (TPE), a pH-sensitive aggregation induced emission (AIE) probe TPE-Leu was developed. The aliphatic amine in TPE-Leu was more easily protonated under acidic conditions, which made TPE-Leu more water soluble. Therefore, the protonated AIE probe showed weak fluorescence under acidic conditions. When the pH was changed to basic conditions, it showed strong fluorescence due to the hydrophobic nature of TPE Leu. We demonstrated that the probe showed high selectivity toward pH changes with the coexistence of other potential species such as metal ions, redox agents, and biomolecules. In contrast, TPE-NH2 did not exhibit obvious pH-sensitive properties. Moreover, TPE-Leu was further utilized to develop a sensitive and selective sensing platform for urease and acetylcholinesterase (AChE) detection. The current study not only provides a new strategy for designing pH-sensitive fluorescent probes for bioassays but also broadens the applications of AIE probes. PMID- 29323363 TI - High-efficiency X-ray luminescence in Eu3+-activated tungstate nanoprobes for optical imaging through energy transfer sensitization. AB - X-ray luminescence optical imaging has been recognized as a powerful technique for medical diagnosis due to its deep penetration and low auto-fluorescence in tissues. However, the low luminescence efficiency of current X-ray luminescence nanoprobes remains a major hurdle for sensitive bioimaging in practical medical applications. Here we present a new kind of energy transfer-sensitized X-ray luminescence nanoprobe (PEG-NaGd(WO4)2:Eu) for highly effective optical bioimaging. Under X-ray excitation, the tungstate host absorbs the X-ray photons and then transfers the energy to the Eu3+ luminescence center, thus enhancing the luminescence efficiency of the nanoprobes for high sensitivity optical in vivo imaging. Moreover, the shortened T1 relaxation response of Gd3+ ions and X-ray attenuation capability of W atoms enable the nanoprobes to serve as efficient contrast agents for magnetic resonance imaging (MRI) and computed tomography (CT) imaging. Therefore, combined with the MRI, CT and X-ray luminescence imaging capabilities, the present PEG-NaGd(WO4)2:Eu nanoprobes could be used as promising multimodal imaging contrast agents in biological systems. PMID- 29323364 TI - Graphene template-induced growth of single-crystalline gold nanobelts with high structural tunability. AB - Assembling Au nanocrystals with tunable dimensions and shapes on graphene templates has attracted increasing attention recently. However, directly growing anisotropic Au nanobelts on a graphene support has been rarely reported. Here, a facile, one-pot, and surfactant-free route is demonstrated to synthesize well defined Au nanobelts with the induction of a multilayer graphene (mlG) template. The obtained Au nanobelts are single-crystalline with a preferable (111) orientation. More importantly, their structural evolution starting from Au clusters is systematically investigated using scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results confirm that mlG consistently induces the growth of Au nanobelts from nucleation to the growth completion. The interfacial interaction between Au atoms and the graphene lattice is a predominant factor to direct the shapes and structures of Au nanocrystals, which makes the structures of Au nanobelts highly tunable with the surface modification of the mlG template. The assembly of mlG-Au nanobelts also presents extraordinary detection sensitivity when employed as a flexible surface-enhanced Raman scattering (SERS) substrate, suggesting their great potential application in high-performance sensors. This report strengthens the fundamental understanding of the interactions between noble metals and carbon interfaces, which paves the way to construct and manipulate the complex structures of metals on graphitic substrates. PMID- 29323365 TI - Iridium complexes of perimidine-based N-heterocyclic carbene pincer ligands via aminal C-H activation. AB - The reactions of N,N'-bis(phosphinomethyl)dihydroperimidine pro-ligands H2C(NCH2PR2)2C10H6-1,8 (R = Ph 1a, R = Cy 1b) with iridium(i) substrates have been investigated and shown to readily result in chelate-assisted C-H activation processes. The reaction of 1b with [Ir2Cl2(COE)4] (COE = cyclo-octene) affords the 18-electron iridium(iii) dihydrido complex [IrH2Cl{kappa3-C,P,P' C(NCH2PCy2)2C10H6}], which forms [IrHCl2{kappa3-C,P,P'-C(NCH2PCy2)2C10H6}] under acidic (HCl) conditions. In contrast, reaction of 1a with [Ir2Cl2(COD)2] (COD = 1,5-cyclo-octadiene) affords the complex [IrCl(COD){kappa2-P,P' H2C(NCH2PPh2)2C10H6}], thermolysis of which affords cyclo-octene and the pincer NHC complex [IrCl{kappa3-C,P,P'-C(NCH2PPh2)2C10H6}]. The reaction of 1a with two equivalents of [Ir2Cl2(COD)2] provides the binuclear complex [Ir2{MU H2C(NCH2PPh2)2C10H6}Cl2(COD)2] which is also observed to accumulate and then dissipate during the preceding thermolysis. Related binuclear complexes [M2{MU H2C(NCH2PPh2)2C10H6}Cl4(eta-C5Me5)2] (M = Ir, Rh) which obviate C-H activation were similarly synthesised. PMID- 29323366 TI - Largely enhanced dielectric constant of PVDF nanocomposites through a core-shell strategy. AB - Core-shell structured TiO2@carbon nanowire (TiO2@C NW) hybrids with different carbon shell thicknesses were synthesized by a combination of a hydrothermal reaction and the chemical vapor deposition (CVD) method. Pristine TiO2 NWs with a high aspect ratio were obtained by a hydrothermal reaction and the as-synthesized TiO2 NWs were subsequently employed as the template for carbon shell deposition during the CVD procedure. The obtained TiO2@C NW hybrids have a uniform carbon shell and the thickness of the carbon shell could be precisely designed from 4 nm to 40 nm by controlling the deposition time. With the help of solution and melt blending methods, the TiO2@C NW hybrids were subsequently incorporated into the PVDF matrix to fabricate TiO2@C NWs/PVDF nanocomposites, which exhibit a similar percolative dielectric behavior to that reported in other percolative nanocomposites. Moreover, the dielectric properties of the TiO2@C NWs/PVDF nanocomposites could be accurately adjusted by tuning the carbon shell thickness of the TiO2@C NW hybrids. The highest dielectric constant (2171) of the TiO2@C NWs/PVDF nanocomposites is 80 times larger than those of the pristine TiO2-filled ones at the same filler loading, and 241 times higher than that of the pure PVDF matrix. The enhanced dielectric performance could be attributed to the improved interfacial polarizations of TiO2/C and C/PVDF interfaces. This approach provides an interesting alternative to fabricate high-performance dielectric nanocomposites for practical applications in the electronic industry. PMID- 29323369 TI - Organic semiconductor perylenetetracarboxylic diimide (PTCDI) electrodes for electrocatalytic reduction of oxygen to hydrogen peroxide. AB - Hydrogen peroxide is one of the most important industrial chemicals and there is great demand for the production of H2O2 using more sustainable and environmentally benign methods. We show electrochemical production of H2O2 by the reduction of O2, enabled by an organic semiconductor catalyst, N,N'-dimethyl perylenetetracarboxylic diimide (PTCDI). We make PTCDI cathodes that are capable of stable and reusable operation in aqueous electrolytes in a pH range of 1-13 with a catalytic figure of merit as high as 26 kg H2O2 per g catalyst per h. These performance and stability open new avenues for organic small molecule semiconductors as electrocatalysts. PMID- 29323367 TI - Quantitative mass spectrometry imaging of glutathione in healthy and cancerous hen ovarian tissue sections by infrared matrix-assisted laser desorption electrospray ionization (IR-MALDESI). AB - A quantitative mass spectrometry imaging (QMSI) method for absolute quantification of glutathione (GSH) in healthy and cancerous hen ovarian tissues using infrared matrix-assisted laser desorption electrospray ionization (IR MALDESI) is presented. Using this technique, the ion abundance of GSH was normalized to that of a structural analogue, which was sprayed on the slide prior to mounting the tissue sections. This normalization strategy significantly improved the voxel-to-voxel variability; the variability is attributed to the overall ionization process. Subsequently, a series of calibration spots of stable isotope-labeled (SIL) GSH were pipetted on top of the tissue to construct a spatial calibration curve, and calculate the concentration of GSH in both tissue sections. The QMSI results were verified by LC-MS/MS quantification of GSH for the same tissues. GSH was extracted from tissue sections in a slightly acidic buffer and was then alkylated using N-ethylmaleimide to minimize autoxidation of GSH to glutathione disulfide. The alkylated GSH was separated from other contaminants using reversed phase liquid chromatography (RPLC) coupled to a triple quadrupole mass spectrometer, and the z-ion transition of NEM-GSH was used to quantify GSH in each tissue section. While the absolute values obtained using IR-MALDESI QMSI and LC-MS/MS were different, a ~2-fold increase in the concentration of GSH in cancer tissue compared to the healthy tissue was observed using both techniques. Possible reasons for the difference between absolute concentration values obtained using IR-MALDESI QMSI and LC-MS/MS are also discussed. PMID- 29323370 TI - Photocatalytic partial oxidation of limonene to 1,2 limonene oxide. AB - The silylation of crystalline TiO2 P25, commonly used for photocatalytic degradation of pollutants, results in an exceptionally selective catalyst for the aerobic limonene epoxidation to 1,2-limonene oxide under solar light irradiation. The hypothesized mechanism involves the singlet oxygen generated through energy transfer from the excited TiO2 to adsorbed O2 molecules. The reaction product is the valued precursor of bio-based poly(limonene carbonate), a thermoplastic polymer of superior thermal and optical properties whose industrial production is in need of an efficient green synthesis of limonene oxide. PMID- 29323371 TI - Combining experimental and modelling approaches to study the sources of reactive species induced in water by the COST RF plasma jet. AB - The vast biomedical potential of cold atmospheric pressure plasmas (CAPs) is governed by the formation of reactive species. These biologically active species are formed upon the interaction of CAPs with the surroundings. In biological milieu, water plays an essential role. The development of biomedical CAPs thus requires understanding of the sources of the reactive species in aqueous media exposed to the plasma. This is especially important in case of the COST RF plasma jet, which is developed as a reference microplasma system. In this work, we investigated the formation of the OH radicals, H atoms and H2O2 in aqueous solutions exposed to the COST plasma jet. This was done by combining experimental and modelling approaches. The liquid phase species were analysed using UV-Vis spectroscopy and spin trapping with hydrogen isotopes and electron paramagnetic resonance (EPR) spectroscopy. The discrimination between the species formed from the liquid phase and the gas phase molecules was performed by EPR and 1H-NMR analyses of the liquid samples. The concentrations of the reactive species in the gas phase plasma were obtained using a zero-dimensional (0D) chemical kinetics computational model. A three-dimensional (3D) fluid dynamics model was developed to provide information on the induced humidity in the plasma effluent. The comparison of the experimentally obtained trends for the formation of the species as a function of the feed gas and effluent humidity with the modelling results suggest that all reactive species detected in our system are mostly formed in the gas phase plasma inside the COST jet, with minor amounts arising from the plasma effluent humidity. PMID- 29323372 TI - Highly stable lipid-encapsulation of fluorescent nanodiamonds for bioimaging applications. AB - Highly stable lipid-encapsulated fluorescent nanodiamonds (FNDs) are produced by photo-crosslinking of diacetylene-containing lipids physically attached to the FND surface. Not only is this coating method simple and fast, but also it gives the FND-lipid hybrids favorable properties for bioapplications. The hybrids are useful as fluorescent biolabels as well as fiducial markers for correlative light and electron microscopy. PMID- 29323373 TI - New electron delocalization tools to describe the aromaticity in porphyrinoids. AB - The role of aromaticity in porphyrinoids is a current subject of debate due to the intricate structure of these macrocycles, which can adopt Huckel, Mobius and even figure-eight conformers. One of the main challenges in these large pi conjugated structures is identifying the most conjugated pathway because, among aromaticity descriptors, there are very few that can be applied coherently to this variety of conformers. In this paper, we have investigated the conjugated pathways in nine porphyrinoid compounds using several aromaticity descriptors, including BLA, BOA, FLU and HOMA, as well as the recently introduced AV1245 and AVmin indices. All the indices agree on the general features of these compounds, such as the fulfillment of Huckel's rule or which compounds should be more or less aromatic from the series. However, our results evince the difficulty of finding the most aromatic pathway in the macrocycle for large porphyrinoids. In fact, only AVmin is capable of recognizing the annulene pathway as the most aromatic one in the nine studied structures. Finally, we study the effect of the exchange in DFT functionals on the description of the aromaticity of the porphyrinoids. The amount of exact exchange quantitatively changes the picture for most aromaticity descriptors, AVmin being the only exception that shows the same qualitative results in all cases. PMID- 29323374 TI - Frustrated Lewis pairs incorporating the bifunctional Lewis acid 1,1' fc{B(C6F5)2}2: reactivity towards small molecules. AB - Applications of the bifunctional ferrocenediyl Lewis acid 1,1'-fc{B(C6F5)2}2 in frustrated Lewis pair (FLP) chemistry are described. The coordination (or otherwise) of a range of sterically encumbered C-, N- and P-centred Lewis bases has been investigated, with lutidine, tetramethylpiperidine, PPh3, PtBu3 and the expanded ring carbene 6Dipp being found to be sterically incapable of coordinate bond formation. The chemistry of a range of these FLPs in the presence of H2O, NH3, CO2 and cyclohexylisocyanate (CyNCO) has been investigated, with the patterns of reactivity identified including simple coordination chemistry, E-H bond cleavage and C-B insertion. PMID- 29323375 TI - Confinement of polysulfides within bi-functional metal-organic frameworks for high performance lithium-sulfur batteries. AB - A lithium-sulfur (Li-S) battery is regarded as the most promising candidate for next generation energy storage systems, because of its high theoretical specific capacity (1675 mA h g-1) and specific energy (2500 W h kg-1), as well as the abundance, low cost and environmental benignity of sulfur. However, the soluble polysulfides Li2Sx (4 <= x <= 8) produced during the discharge process can cause the so-called "shuttle effect" and lead to low coulombic efficiency and rapid capacity fading of the batteries, which seriously restrict their practical application. Using porous materials as hosts to immobilize the polysulfides is proved to be an effective strategy. In this article, a dual functional cage-like metal-organic framework (Cu-MOF), Cu-TDPAT, combining the Lewis basic sites from the nitrogen atoms of the ligand H6TDPAT with the Lewis acidic sites from Cu(ii) open metal sites (OMSs), was employed as the sulfur host in a Li-S battery for lithium ions and polysulfide anions (Sx2-). In addition, the size of nano-Cu TDPAT was also optimized by microwave synthesis to reduce the internal resistance of the batteries. The electrochemical test results showed that the optimized Cu TDPAT material can efficiently confine the polysulfides within the MOF, and the resultant porous S@Cu-TDPAT composite cathode material with the size of 100 nm shows good cycling performance with a reversible capacity of about 745 mA h g-1 at 1C (1C = 1675 mA g-1) after 500 cycles, to the best of our knowledge, which is higher than those of all reported S@MOF cathode materials. The DFT calculation and XPS data indicate that the good cycling performance mainly results from the dual functional binding sites (that is, Lewis acid and base sites) in nanoporous Cu-TDPAT, providing the comprehensive and robust interaction with the polysulfides to overcome their dissolution and diffusion into the electrolyte. Clearly, our work provides a good example of designing MOFs with suitable interaction sites for the polysulfides to achieve S@MOF cathode materials with excellent cycling performance by multiple synergistic effects between nanoporous host MOFs and the polysulfides. PMID- 29323376 TI - A multifunctional wearable sensor based on a graphene/inverse opal cellulose film for simultaneous, in situ monitoring of human motion and sweat. AB - A multifunctional, wearable sensor based on a reduced oxide graphene (rGO) film onto a porous inverse opal acetylcellulose (IOAC) film has been developed and can perform simultaneous, in situ monitoring of various human motions and ion concentrations in sweat. The rGO film is used as a strain-sensing layer for monitoring human motion via its resistance change, whereas the porous IOAC film is used as a flexible microstructured substrate not only for high sensitive motion sensing, but also for collection and analysis of ion concentrations in sweat by its simple colorimetric changes or reflection-peak shifts. Studies on humans demonstrated that the devices have excellent capability for monitoring various human motions, such as finger bending motion, wrist bending motion, head rotation motion and various small-scale motions of the throat. Simultaneous, in situ analysis of the ion concentration in sweat during these motions shows that the IOAC substrate can detect a wide range of NaCl concentrations in sweat from normal 30 to 680 mM under the conditions of severe dehydration. This investigation provides new horizons toward the design and fabrication of multifunctional, wearable health monitoring devices and the proposed wearable sensor shows promising applications in healthcare and preventive medicine. PMID- 29323377 TI - A novel strategy for thermometry based on the temperature-induced red shift of the charge transfer band edge. AB - We report a novel strategy for optical temperature sensing using the temperature induced red shift of the charge transfer band (CTB) edge of the VO43- groups in GdVO4:5% Sm3+. Excitation spectra were recorded at a series of temperatures ranging from 300 to 480 K. It is demonstrated that an excitation intensity of around 360 nm corresponding to the tail of the CTB and an excitation intensity of 407.6 nm corresponding to the 6H5/2 -> 4F7/2 transition of Sm3+ exhibit opposite temperature dependence. Based on this, the relative sensitivity was obtained to be 3313/T2 in our investigated temperature range, which is remarkable progress compared with the optical temperature sensors reported previously. We believe that this work broadens the pathway for the design of highly sensitive temperature sensing materials. PMID- 29323378 TI - From ligand exchange to reaction intermediates: what does really happen during the synthesis of emissive complexes? AB - In situ monitoring of the formation of emissive complexes is essential to enable the development of rational synthesis protocols, to provide accurate control over the generation of structure-related properties (such as luminescence) and to facilitate the development of new compounds. In situ luminescence analysis of coordination sensors (ILACS) utilizes the sensitivity of the spectroscopic properties of lanthanide ions to their coordination environment to detect structural changes during crystallization processes. Here, ILACS was utilized to monitor the formation of [Eu(bipy)2(NO3)3] (bipy = 2,2'-bipyridine) during co precipitation synthesis. Validity of the ILACS results was ensured by concomitant utilization of in situ monitoring of other reaction parameters, including in situ measurements of pH value, ionic conductivity, and infrared spectra, as well as ex situ and synchrotron-based in situ X-ray diffraction analyses. Gradual desolvation of the Eu3+ ions and attachment of ligands were detected by an exponential increase of the intensity of the 5D0 -> 7FJ (J = 0-4) transitions in the emission spectrum. Additionally, the in situ emission spectra show a decrease in the crystallization rate and an increase in the induction time in response to a reduction in the concentration of the starting solutions from 12 mM until crystallization ceased at starting reactant concentrations <6 mM. An increase to a three-fold higher concentration leads to the formation of a reaction intermediate, and its stability was determined to be highly concentration dependent. The in situ luminescence measurements also demonstrated the existence of a ligand exchange process within the [Eu(bipy)2(NO3)3] complex upon addition of a phen (phen = 1,10'-phenanthroline) solution and the generation of a new phen containing emissive complex. In attempting to solve the structure of this new phen-containing complex, a different, but nevertheless previously unsynthesized complex, [Eu(phen)2(NO3)3]bipy, was obtained, which shows characteristic Eu3+ luminescence in the red spectral range. PMID- 29323379 TI - Chemical profiling of two congeneric sea mat corals along the Brazilian coast: adaptive and functional patterns. AB - Metabolomic profiles were explored to understand environmental and taxonomic influences on the metabolism of two congeneric zoanthids, Palythoa caribaeorum and P. variabilis, collected across distinct geographical ranges. Integrated mass spectrometry data suggested the major influence of geographical location on chemical divergence when compared to species differentiation. PMID- 29323380 TI - Aldehyde-functionalized metal-organic frameworks for selective sensing of homocysteine over Cys, GSH and other natural amino acids. AB - A novel aldehyde-functionalized porous metal-organic framework (MOF) material has been constructed that can act as the first example of MOF-implicated sensors for discriminating Hcy from natural amino acids and even thiol-related peptides (GSH) with high sensitivity (LOD = 40 nM). The sensing mechanism is also discussed. PMID- 29323381 TI - Lifted graphene nanoribbons on gold: from smooth sliding to multiple stick-slip regimes. AB - Graphene nanoribbons (GNRs) physisorbed on a Au(111) surface can be picked up, lifted at one end, and made to slide by means of the tip of an atomic-force microscope. The dynamic transition from smooth sliding to multiple stick-slip regimes, the pushing/pulling force asymmetry, the presence of pinning, and its origin are real frictional processes in a nutshell, in need of a theoretical description. To this purpose, we conduct classical simulations of frictional manipulations of a 30 nm-long GNR, one end of which is pushed or pulled horizontally while held at different heights above the Au surface. These simulations allow us to clarify theoretically the emergence of stick-slip originating from the short 1D edges rather than the 2D "bulk", the role of adhesion, of lifting, and of graphene bending elasticity in determining the GNR sliding friction. The understanding obtained in this simple context is of additional value for more general cases. PMID- 29323382 TI - Probing transcription factor binding activity and downstream gene silencing in living cells with a DNA nanoswitch. AB - Transcription factor DNA binding activity is of pivotal importance in living systems because of its primary involvement in the regulation of genetic machinery. The analysis of transient expression levels of transcription factors in response to a certain cell status is a powerful means for investigating cellular dynamics at the biomolecular level. Herein, a DNA-based molecular switch that enables probing of transcription factor DNA binding activity is directly used in living cells. We demonstrate that the DNA nanoswitch allows for dynamic fluorescence imaging of NF-kappaB and quantification of downstream gene silencing in real time. The present strategy is based on a functional DNA nanodevice that transduces, through a binding-induced conformational change, the recognition of a specific transcription factor into a fluorescent signal. In addition, stochastic optical resolution microscopy, a super-resolution microscopy technique, is used to track the internalization and intracellular trafficking of the DNA nanodevice with high spatial resolution. Overall, it has been shown that a rationally designed DNA nanodevice can be used to achieve rapid, simple, and cost-effective real-time determination of transcription factor binding activity and downstream gene silencing. PMID- 29323383 TI - Field-dependent dynamic responses from dilute magnetic nanoparticle dispersions. AB - The response of magnetic nanoparticles (MNPs) to an oscillating magnetic field outside the linear response region is important for several applications including magnetic hyperthermia, magnetic resonance imaging and biodetection. The size and magnetic moment are two critical parameters for the performance of a colloidal MNP dispersion. We present and demonstrate the use of optomagnetic (OM) and AC susceptibility (ACS) measurements vs. frequency and magnetic field strength to obtain the size and magnetic moment distributions including the correlation between the distributions. The correlation between the size and the magnetic moment contains information on the morphology and intrinsic structure of the particle. In OM measurements, the variation of the second harmonic light transmission through a dispersion of MNPs is measured in response to an oscillating magnetic field. We solve the Fokker-Planck equations for MNPs with a permanent magnetic moment, and develop analytical approximations to the ACS and the OM signals that also account for the change in the curve shapes with increasing field strength. Further, we describe the influence of induced magnetic moments on the signals, by solving the Fokker-Planck equation for particles, which apart from the permanent magnetic moment may also have an induced magnetic moment and shape anisotropy. Using the results from the Fokker-Planck calculations we fit ACS and OM measurements on two multi-core particle systems. The obtained fit parameters also describe the correlations between the magnetic moment and size of the particles. From such an analysis on a commercially available polydisperse multicore particle system with an average particle size of 80 nm, we find that the MNP magnetic moment is proportional to the square root of the hydrodynamic size. PMID- 29323384 TI - Tracking iron-associated proteomes in pathogens by a fluorescence approach. AB - Porphyromonas gingivalis is a key oral anaerobic bacterium involved in human periodontitis, which may affect up to 15% adults worldwide. Using the membrane permeable fluorescent probe Fe-TRACER, we identified 17 iron-associated proteins in Porphyromonas gingivalis. We demonstrated the specific binding of the probe towards iron-associated proteins using transferrin as an example and provided an X-ray structure of the fluorescent probe-bound transferrin. Our study provides a basis for the understanding of iron homeostasis in pathogens, and our approach based on the integration of fluorescence imaging with proteomics and bioinformatics can be readily extended to mine other metalloproteomes in microbials. PMID- 29323385 TI - 2D end-to-end carbon nanotube conductive networks in polymer nanocomposites: a conceptual design to dramatically enhance the sensitivities of strain sensors. AB - New generation wearable devices require mechanically compliant strain sensors with a high sensitivity in a full detecting range. Herein, novel 2D end-to-end contact conductive networks of multi-walled carbon nanotubes (MWCNTs) were designed and realized in an ethylene-alpha-octene block copolymer (OBC) matrix. The prepared strain sensor showed a high gauge factor (GF) of 248 even at a small strain (5%) and a linear resistance response throughout the whole strain range. The sensors also exhibited very good stretchability up to 300% and high cycling durability. This novel design solved the intrinsic problem of sensors based on carbon nanotube bundles, i.e., a long sliding phase before the disconnection of CNTs in a cost-effective and scalable way. This study rationalizes the 2D end-to end contact concept to improve the sensitivity of the existing sensors and has great potential to be used in a wide variety of polymer based sensors. PMID- 29323386 TI - Highly robust, uniform and ultra-sensitive surface-enhanced Raman scattering substrates for microRNA detection fabricated by using silver nanostructures grown in gold nanobowls. AB - Highly sensitive and reproducible surface enhanced Raman spectroscopy (SERS) requires not only a nanometer-level structural control, but also superb uniformity across the SERS substrate for practical imaging and sensing applications. However, in the past, increased reproducibility of the SERS signal was incompatible with increased SERS sensitivity. This work presents multiple silver nanocrystals inside periodically arrayed gold nanobowls (SGBs) via an electrochemical reaction at an overpotential of -3.0 V (vs. Ag/AgCl). The gaps between the silver nanocrystals serve as hot spots for SERS enhancement, and the evenly distributed gold nanobowls lead to a high device-to-device signal uniformity. The SGBs on the large sample surface exhibit an excellent SERS enhancement factor of up to 4.80 * 109, with excellent signal uniformity (RSD < 8.0 +/- 2.5%). Furthermore, the SGBs can detect specific microRNA (miR-34a), which plays a widely acknowledged role as biomarkers in diagnosis and treatment of diseases. Although the small size and low abundance of miR-34a in total RNA samples hinder their detection, by utilizing the advantages of SGBs in SERS sensing, reliable and direct detection of human gastric cancer cells has been successfully accomplished. PMID- 29323387 TI - Synergistic effects of stellated fibrous mesoporous silica and synthetic dsRNA analogues for cancer immunotherapy. AB - Stellated fibrous mesoporous silica nanospheres significantly improve the cellular uptake of cancer antigen and the maturation of bone marrow derived dendritic cells in vitro. Moreover, the combination of poly(I:C) with stellated fibrous MS nanospheres markedly decreases the necessary dose of poly(I:C) for anti-tumor immunity, and thus opens new opportunities for the future clinical application of poly(I:C) in cancer immunotherapy. PMID- 29323388 TI - A novel thermal detection method based on molecularly imprinted nanoparticles as recognition elements. AB - Molecularly Imprinted Polymers (MIPs) are synthetic receptors that are able to selectively bind their target molecule and, for this reason, they are currently employed as recognition elements in sensors. In this work, MIP nanoparticles (nanoMIPs) are produced by solid-phase synthesis for a range of templates with different sizes, including a small molecule (biotin), two peptides (one derived from the epithelial growth factor receptor and vancomycin) and a protein (trypsin). NanoMIPs are then dipcoated on the surface of thermocouples that measure the temperature inside a liquid flow cell. Binding of the template to the MIP layer on the sensitive area of the thermocouple tip blocks the heat-flow from the sensor to the liquid, thereby lowering the overall temperature measured by the thermocouple. This is subsequently correlated to the concentration of the template, enabling measurement of target molecules in the low nanomolar regime. The significant improvement in the limit of detection (a magnitude of three orders compared to previously used MIP microparticles) can be attributed to their high affinity, enhanced conductivity and increased surface-to-volume ratio. It is the first time that these nanosized recognition elements are used in combination with thermal detection, and it is the first report on MIP-based thermal sensors for determining protein levels. The developed thermal sensors have a high selectivity, fast measurement time (<5 min), and data analysis is straightforward, which makes it possible to monitor biomolecules in real-time. The set of biomolecules discussed in this manuscript show that it is possible to cover a range of template molecules regardless of their size, demonstrating the general applicability of the biosensor platform. In addition, with its high commercial potential and biocompatibility of the MIP receptor layer, this is an important step towards sensing assays for diagnostic applications that can be used in vivo. PMID- 29323389 TI - Theoretical insight into the regioselective ring-expansions of bicyclic aziridinium ions. AB - Transient bicyclic aziridinium ions are known to undergo ring-expansion reactions, paving the way to functionalized nitrogen-containing heterocycles. In this study, the regioselectivity observed in the ring-expansion reactions of 1 azoniabicyclo[n.1.0]alkanes was investigated from a computational viewpoint to study the ring-expansion pathways of two bicyclic systems with different ring sizes. Moreover, several nucleophiles leading to different experimental results were investigated. The effect of solvation was taken into account using both explicit and implicit solvent models. This theoretical rationalization provides valuable insight into the observed regioselectivity and may be used as a predictive tool in future studies. PMID- 29323390 TI - Bimetal-organic frameworks for functionality optimization: MnFe-MOF-74 as a stable and efficient catalyst for the epoxidation of alkenes with H2O2. AB - In this work, we synthesized a series of microcrystalline MnxN100-x-MOF-74 (N = Fe, Co and Ni) materials by a one-pot reaction. Powder X-ray diffraction (PXRD) patterns of MnxN100-x-MOF-74 matched well with those of single-metal MOF-74, and the scanning electron microscopy (SEM) images exhibited homogeneous nanocrystallites aggregated together. The amounts and dispersion of metals were analyzed by using inductively coupled plasma (ICP) and energy-dispersive X-ray spectroscopy (EDS), separately. MnxN100-x-MOF-74 could remain crystalline and efficiently catalyze the epoxidation of alkenes in DMF with NaHCO3 and 30% H2O2. In particular, Mn29.39Fe70.61-MOF-74 can achieve almost 100% conversion for styrene with 95.0% selectivity towards styrene oxide and be reused at least five times without loss of activity. PMID- 29323391 TI - Growth of regular nanometric molecular arrays on a functional 2D template based on a chemical guest-host approach. AB - A regular 2D array of crown molecules, which would spontaneously self-assemble into disordered molecular clusters, is obtained by exploiting a guest-host process, based on the chemical affinity between amino and carboxylic groups on a gold surface. First a carboxylic organic template is formed, which then serves as a host for amino-functionalized crown molecules. The amino-carboxylic interaction thereby drives the formation of a monolayer of guest molecules, regularly distributed at the nanometer scale, preventing their aggregation in unordered clusters observed on a bare gold surface. This method, which can be applied to other guest molecules, represents a novel route to overcome the shape-matching requirements of the standard guest-host architectures. Furthermore, it is intrinsically selective, due to the chemical nature of the anchoring process. PMID- 29323392 TI - High-Q and highly reproducible microdisks and microlasers. AB - High quality (Q) factor microdisks are fundamental building blocks of on-chip integrated photonic circuits and biological sensors. The resonant modes in microdisks circulate near their boundaries, making their performances strongly dependent upon surface roughness. Surface-tension-induced microspheres and microtoroids are superior to other dielectric microdisks when comparing Q factors. However, most photonic materials such as silicon and negative photoresists are hard to be reflowed and thus the realizations of high-Q microdisks are strongly dependent on electron-beam lithography. Herein, we demonstrate a robust, cost-effective, and highly reproducible technique to fabricate ultrahigh-Q microdisks. By using silica microtoroids as masks, we have successfully replicated their ultrasmooth boundaries in a photoresist via anisotropic dry etching. The experimentally recorded Q factors of passive microdisks can be as large as 1.5 * 106. Similarly, ultrahigh Q microdisk lasers have also been replicated in dye-doped polymeric films. The laser linewidth is only 8 pm, which is limited by the spectrometer and is much narrower than that in previous reports. Meanwhile, high-Q deformed microdisks have also been fabricated by controlling the shape of microtoroids, making the internal ray dynamics and external directional laser emissions controllable. Interestingly, this technique also applies to other materials. Silicon microdisks with Q > 106 have been experimentally demonstrated with a similar process. We believe this research will be important for the advances of high-Q micro-resonators and their applications. PMID- 29323393 TI - Nano-beam and nano-target effects in ion radiation. AB - Full three dimensional (3D) simulations of ion implantation are necessary in a wide range of nanoscience and nanotechnology applications to capture the increasing effect of ion leakage out of surfaces. Using a recently developed 3D Monte Carlo simulation code IM3D, we first quantify the relative error of the 1D approach in three applications of nano-scale ion implantation: (1) nano-beam for nitrogen-vacancy (NV) center creation, (2) implantation of nanowires to fabricate p-n junctions, and (3) irradiation of nano-pillars for small-scale mechanical testing of irradiated materials. Because the 1D approach fails to consider the exchange and leakage of ions from boundaries, its relative error increases dramatically as the beam/target size shrinks. Lastly, the "Bragg peak" phenomenon, where the maximum radiation dose occurs at a finite depth away from the surface, relies on the assumption of broad beams. We discovered a topological transition of the point-defect or defect-cluster distribution isosurface when one varies the beam width, in agreement with a previous focused helium ion beam irradiation experiment. We conclude that full 3D simulations are necessary if either the beam or the target size is comparable or below the SRIM longitudinal ion range. PMID- 29323394 TI - Box-like gel capsules from heterostructures based on a core-shell MOF as a template of crystal crosslinking. AB - New polymer capsules (PCs) were obtained using a crystal crosslinking (CC) method on core-shell MOF crystals. The latter are based on the epitaxial growth of two isostructural coordination polymers which are then selectively crosslinked. Decomposition of the non-reticulated phase leads to new PCs, possessing a well defined hollow cubic shape reflecting the heterostructure of the template. PMID- 29323395 TI - Self-powered implantable electronic-skin for in situ analysis of urea/uric-acid in body fluids and the potential applications in real-time kidney-disease diagnosis. AB - As the concentration of different biomarkers in human body fluids are an important parameter of chronic disease, wearable biosensors for in situ analysis of body fluids with high sensitivity, real-time detection, flexibility and biocompatibility have significant potential therapeutic applications. In this paper, a flexible self-powered implantable electronic-skin (e-skin) for in situ body fluids analysis (urea/uric-acid) as a real-time kidney-disease diagnoser has been proposed based on the piezo-enzymatic-reaction coupling process of ZnO nanowire arrays. It can convert the mechanical energy of body movements into a piezoelectric impulse, and the outputting piezoelectric signal contains the urea/uric-acid concentration information in body fluids. This piezoelectric biosensing process does not need an external electricity supply or battery. The e skin was implanted under the abdominal skin of a mouse and provided in situ analysis of the kidney-disease parameters. These results provide a new approach for developing a self-powered in situ body fluids-analysis technique for chronic disease diagnosis. PMID- 29323396 TI - Using DNA strand displacement to control interactions in DNA-grafted colloids. AB - Grafting DNA oligonucleotides to colloidal particles leads to specific, reversible interactions between those particles. However, the interaction strength varies steeply and monotonically with temperature, hindering the use of DNA-mediated interactions in self-assembly. We show how the dependence on temperature can be modified in a controlled way by incorporating DNA strand displacement reactions. The method allows us to make multicomponent systems that can self-assemble over a wide range of temperatures, invert the dependence on temperature to design colloidal systems that melt upon cooling, controllably transition between structures with different compositions, or design systems with multiple melting transitions. This wide range of behaviors can be realized simply by adding a small number of DNA strands to the solution, making the approach modular and straightforward to implement. We conclude with practical considerations for designing systems of DNA-mediated colloidal interactions. PMID- 29323397 TI - Spontaneous symmetry breaking of charge-regulated surfaces. AB - The interaction between two chemically identical charge-regulated surfaces is studied using the classical density functional theory. In contrast to common expectations and assumptions, under certain realistic conditions we find a spontaneous emergence of disparate charge densities on the two surfaces. The surface charge densities can differ not only in their magnitude, but quite unexpectedly, even in their sign, implying that the electrostatic interaction between the two chemically identical surfaces can be attractive instead of repulsive. Moreover, an initial symmetry with equal charge densities on both surfaces can also be broken spontaneously upon decreasing the separation between the two surfaces. The origin of this phenomenon is a competition between the adsorption of ions from the solution to the surface and the interaction between the adsorbed ions already on the surface. These findings are fundamental for the understanding of the forces between colloidal objects and, in particular, they are bound to strongly influence the present picture of protein interaction. PMID- 29323398 TI - Night-shift work and hematological cancers: a population based case-control study in three Nordic countries. AB - Objective The aim of this case-control study was to assess the effect of night shift work on the risk of hematological cancers. Methods The study included 39 371 leukemia, 56 713 non-Hodgkin lymphoma, 9322 Hodgkin lymphoma, and 26 188 multiple myeloma cases diagnosed between 1961 and 2005 in Finland, Sweden, and Iceland. Five controls for each case were selected from the Nordic Occupational Cancer Study (NOCCA) cohort, matched by year of birth, sex and country. Night shift exposure was assessed by using the NOCCA job-exposure matrix (JEM). Odds ratios (OR) and 95% confidence intervals (95% CI) were calculated from conditional logistic regression models. Results Overall, night work was not associated with a risk of hematological cancers. We observed a small but non significantly increased risk for leukemia (OR 1.07, 95% CI 0.99-1.16), especially for acute myeloid leukemia (OR 1.15, 95% CI 0.97-1.36) among workers exposed to a high level of cumulative night work exposure. Night work exposure was not associated with lymphatic cancers and multiple myeloma. Conclusion This study did not support associations between night-shift work and hematological cancers. PMID- 29323399 TI - [Usability and acceptability of portable exoskeletons for gait training in subjects with spinal cord injury: a systematic review]. AB - INTRODUCTION: Spinal cord injury limits severely life expectancy and it causes in a restriction in the activities of the daily life of the subjects who suffer it. Training the gait with portable exoskeletons in subjects with spinal cord injury is a new approach to rehabilitation. AIM: To examine the usability and acceptability of these devices for gait training in subjects with spinal cord injury. PATIENTS AND METHODS: A literature search was conducted until February 2017 in the databases: Medline (PubMed, EBSCO), PEDro, Scopus and Web of Science. The methodological quality, the level of scientific evidence and the strength of recommendation were evaluated. RESULTS: Finally, eight studies were considered recruiting a total of 45 patients. The training programs had an average of 35 sessions and a duration 60 minutes approximately. In general, no adverse events and no relevant increases in pain, blood pressure, heart rate or fatigue were reported. In addition, the satisfaction with the intervention and the perception of quality of life of the participants were quite high. CONCLUSIONS: The rehabilitation of the gait with portable exoskeletons seems to be a safe intervention that generates acceptance and satisfaction among patients with spinal cord injury. PMID- 29323400 TI - [Amimia in Parkinson's disease. Significance and correlation with the clinical features]. AB - INTRODUCTION: Reduced facial expression or amimia is one of the most typical characteristics of Parkinson's disease (PD). Despite being described in classic texts, its significance, physiopathology and correlation with motor and non-motor symptoms is largely unknown. PATIENTS AND METHODS: We have studied facial bradykinesia in a group of 84 de novo PD patients prospectively evaluated for five years. We also studied the relationship of facial bradykinesia with depression in a subgroup of 30 patients. RESULTS: Baseline and follow-up assessments were performed with the Unified Parkinson's Disease Rating Scale (UPDRS). Baseline facial bradykinesia was rated according to item 19 of UPDRS. Baseline facial bradykinesia correlated with total and motor baseline UPDRS. In addition, baseline bradykinesia correlated with total and motor UPDRS at five years. However baseline bradykinesia did not influence the presence of motor (motor fluctuation, dyskinesias and freezing of gait) or non-motor complications (delusion, behavior abnormalities and dementia) at five years. Finally a subgroup of 30 patients completed the self-report version of the Quick Inventory of Depressive Symptoms (QIDS-SR16) questionnaire, facial bradykinesia did not correlate with QIDS-SR16 scores. CONCLUSION: Our study suggests that baseline facial bradykinesia correlates with general baseline situation in PD and even might predict the motor and functional status at five years. PMID- 29323401 TI - [Efficacy of interventions with video games consoles in stroke patients: a systematic review]. AB - INTRODUCTION: In recent years video games and games consoles have been developed that are potentially useful in rehabilitation, which has led to studies conducted to evaluate the degree of efficacy of these treatments for people following a stroke. AIM: To analyse the literature available related to the effectiveness of applying video games consoles in the functional recovery of the upper extremities in subjects who have survived a stroke. PATIENTS AND METHODS: A review of the literature was conducted in the CINHAL, Medline, PEDro, PsycArticles, PsycInfo, Science Direct, Scopus and Web of Science databases, using the query terms 'video game', 'stroke', 'hemiplegia', 'upper extremity' and 'hemiparesis'. After applying the eligibility criteria (clinical trials published between 2007 and 2017, whose participants were adults who had suffered a stroke with involvement of the upper extremity and who used video games), the scientific quality of the selected studies was rated by means of the PEDro scale. Eleven valid clinical trials were obtained for the systematic review. RESULTS: The studies that were selected, all of which were quantitative, presented different data and the inferential results indicated different levels of significance between control and experimental groups (82%) or between the different types of treatment (18%). CONCLUSIONS: The use of video games consoles is a useful complement for the conventional rehabilitation of the upper extremities of persons who have survived a stroke, since it increases rehabilitation time and enhances the recovery of motor functioning. Nevertheless, homogeneous intervention protocols need to be implemented in order to standardise the intervention. PMID- 29323402 TI - Neurogenic stuttering: a review of the literature. AB - INTRODUCTION: Neurogenic stuttering is a disorder of neurologic origin in the rhythm of speech during which the patient knows exactly what he wants to say but is unable to because of an involuntary prolongation, cessation or repetition of a sound. AIM: To assemble new insights regarding the epidemiology, pathophysiology, diagnosis, evaluation and treatment of neurogenic stuttering. DEVELOPMENT: A review of all PubMed and Scopus published articles between January 2000 and September 2016 was performed. Thirty-three publications were analyzed. Neurogenic stuttering is a rare entity whose epidemiological incidence is yet not fully established. It is correlated with several neurological diseases and with several possible localizations within the nervous system. Notwithstanding the recent advances in the understanding of the underlying mechanism, it is not yet possible to establish a single pathophysiological mechanism of neurogenic stuttering. The differential diagnosis is complex and requires the detailed knowledge of other language disorders. The treatment is currently based on specific speech language therapy strategies. CONCLUSION: Neurogenic stuttering is a complex disorder which is not fully understood. Additional studies might help to better explain the underlying pathophysiological mechanism and to open doors to novel therapeutic methods. PMID- 29323403 TI - [Ultrasound study of the vagal nerve as a diagnostic tool in Guillain-Barre syndrome]. PMID- 29323404 TI - [Occipital intermittent rhythmic delta activity as the interictal pattern in an adult with focal epilepsy]. PMID- 29323405 TI - [The challenges of a re-emerging disease: tuberculous meningo-encephalitis]. PMID- 29323406 TI - Type and timing of dietary acid intake and tooth wear among American adults. AB - OBJECTIVES: To explore the interrelationship between type and timing of dietary acid intake and tooth wear among American adults. METHODS: This study used data from 3,586 adults, aged 18 years and older, who participated in the National Health and Nutrition Examination Survey (NHANES) 2003-04. Information on four types of acidic food and beverages (fruits, fruit juices, alcoholic drinks, and soft drinks) and timing of consumption (meals versus snacks, defined according to percentage of total energy intake, self-reported eating occasion, and time of day) was extracted from two 24-hour dietary recalls. The association of the type and timing of dietary acid intake with the number of surfaces with moderate-to severe tooth wear was assessed in Hurdle models to account for the excess zero counts and over-dispersion. Models were adjusted for socio-demographic factors, acid reflux medication, and dental insurance coverage. RESULTS: The daily intake of soft drinks was associated with tooth wear, while those of fruits, fruit juices, and alcoholic drinks were not. The consumption of soft drinks with meals was the only factor consistently associated with tooth wear, irrespective of the method used to define meals versus snacks. The above associations were found with the number of surfaces with tooth wear (among those with the condition), but not with the odds of having tooth wear (among all participants). CONCLUSION: The consumption of soft drinks with meals was associated with moderate-to-severe tooth wear among American adults. Other acidic foods and beverages were not associated with tooth wear, regardless of their timing of consumption. PMID- 29323407 TI - Behind the lines: Toward an aesthetic framework for psychoanalytic psychotherapy. AB - This article describes the author's development of an aesthetic approach to psychoanalytic psychotherapy of patients suffering from traumatic levels of grief by describing her experiences as a patient, a therapist, and a consultant to the design firm that partnered with the National September 11 Memorial and Museum. Using Aristotle's On Poetics as an inspiration, this article explores the ways dialogical storytelling creates a therapeutic "action-plot" that transforms reversals of fortune. Attending to patients' first-person phenomenological experience (without attributing cause), therapists help them transform their losses by listening to their stories. Therapists dwell with them in uncertainties while marking time in regularly scheduled meetings; they accompany their patients on a journey while also orienting to their modes of travel. They simultaneously co-construct tales of the journey, attentive to the poetic dimensions of sight, sound, and space that they encounter. In so doing, therapists serve not just guides and judges, but artists, bringing meanings to the trail. PMID- 29323408 TI - Prediction analysis and quality assessment of microwell array images. AB - Microwell arrays are widely used for the analysis of fluorescent-labelled biomaterials. For rapid detection and automated analysis of microwell arrays, the computational image analysis is required. Support Vector Machines (SVM) can be used for this task. Here, we present a SVM-based approach for the analysis of microwell arrays consisting of three distinct steps: labeling, training for feature selection, and classification into three classes. The three classes are filled, partially filled, and unfilled microwells. Next, the partially filled wells are analyzed by SVM and their tendency towards filled or unfilled tested through applying a Gaussian filter. Through this, all microwells can be categorized as either filled or unfilled by our algorithm. Therefore, this SVM based computational image analysis allows for an accurate and simple classification of microwell arrays. PMID- 29323409 TI - In Vitro Comparison of Two Neonatal ECMO Circuits Using a Roller or Centrifugal Pump With Three Different In-Line Hemoconcentrators for Maintaining Hemodynamic Energy Delivery to the Patient. AB - The objective of this study was to compare three different hemoconcentrators (Hemocor HPH 400, Mini, and Junior) with two different neonatal ECMO circuits using a roller or a centrifugal pump at different pseudo-patient pressures and flow rates in terms of hemodynamic properties. This evidence-based research is necessary to optimize the ECMO circuitry for neonates. The circuits used a 300-mL soft-shell reservoir as a pseudo-patient approximating the blood volume of a 3 kg neonate, two blood pumps, and a Quadrox-iD Pediatric oxygenator with three different in-line hemoconcentrators (Hemocor HPH 400, Mini, and Junior). One circuit used a Maquet H20 roller pump and another circuit used a Maquet RotaFlow centrifugal pump. The circuit was primed with lactated Ringer's solution followed by heparinized packed red blood cells with a hematocrit of 40%. The pseudo patient's pressure was manually maintained at 40, 60, or 80 mm Hg and the flow rate was maintained at 200, 400, or 600 mL/min with a circuit temperature of 36 degrees C. Pressure and flow data was recorded using a custom-made data acquisition device. Mean pressures, diverted blood flow, pressure drops, and total hemodynamic energy (THE) were calculated for each experimental condition. The roller pump and centrifugal pump performed similarly for all hemodynamic properties with all experimental conditions. The Hemocor HPH Junior hemoconcentrator added the highest resistance to the circuit. The Hemocor HPH Junior provided the highest circuit pressures, lowest diverted blood flow, highest pressure drop across the circuit, and highest THE generated by the pump. The Hemocor HPH 400 added the least resistance to the circuit, providing the lowest circuit pressures, more diverted flow, lowest pressure drop, and the lowest THE generated by the pump. However, the THE delivered to the patient was the same for the three hemoconcentrators. While the three hemoconcentrators performed differently in terms of hemodynamic properties throughout the circuit, the THE transmitted to the patient was similar for all three hemoconcentrators due to the consistent pseudo-patient's pressure that was manually maintained for each trial. While the THE delivered to the patient indicates similar perfusion for these patients with any of the three hemoconcentrators, the differences in added resistance to the circuit may impact the decision of which hemoconcentrator is used. There was no clinically significant difference between the two circuits with the roller versus centrifugal pump in terms of hemodynamic properties in this study. Further in vivo research is warranted to confirm our findings. PMID- 29323410 TI - Housing First and Photovoice: Transforming Lives, Communities, and Systems. AB - This article presents findings from a community-based participatory evaluation of a Housing First program on the Island of O'ahu. In this study, clients in a Housing First program used Photovoice to evaluate the program and to advocate for progressive housing policies. Written together by members of the Housing First Photovoice group, this collaborative article describes the outcomes from both the Housing First program and the Photovoice project and demonstrates the ways in which participatory program evaluations can interact with client-driven programs like Housing First to produce a cumulative, transformative impact. Findings suggest that community psychologists hoping to re-engage with community mental health systems through enacting transformative change should consider taking a community-based participatory approach to program evaluation because increased client voice in community mental health programs and their evaluations can have far-reaching, transformative impacts for research, practice, and policy. PMID- 29323411 TI - Demographic quantification of carbon and nitrogen dynamics associated with root turnover in white clover. AB - As well as capturing resources, roots lose resources during their lives. We quantified carbon (C) and nitrogen (N) losses associated with root turnover in white clover (Trifolium repens L.). We grew contrasting cultivars for 18 weeks in soil microcosms. Using repeated in situ observations, destructive sampling, and demographic analysis, we measured changes in C and N concentrations in dry matter of 1st- or 2nd-order (terminal) roots to derive C and N fluxes into and out of root cohorts. C and N fluxes from roots during turnover depended on cohort age and order. Ninety per cent of losses occurred from 2nd-order cohorts younger than 18 weeks. Losses were greater from roots of the larger, faster growing cultivar Alice than from the smaller lower yielding cultivar S184. C:N ratios of roots and lost material were similar within each order and between cultivars but smaller in 2nd- compared with 1st-order roots. C and N losses during root turnover could be equivalent to at least 6% of aboveground dry matter production in S184 and 12% in Alice at the field scale. C and N losses associated with root turnover will have potentially significant and previously unrecognized impacts on crop productivity, resource dynamics, and long-term soil fertility. PMID- 29323412 TI - Microsystems of Recovery in Homeless Services: The Influence of Service Provider Values on Service Users' Recovery Experiences. AB - There is still much to learn about how aspects of the ecology of homelessness shape homeless adults' recovery experiences. In the present mixed-methods study, the relationship of service providers' work-related values to their service users' recovery experiences in the microsystem of homelessness were examined. Service providers completed semi-structured qualitative interviews about their service users, daily work activities, and work-related goals. At three time points, their service users completed quantitative measures of choice, mastery, and recovery in four life domains: physical health, psychiatric symptoms, substance use, and community integration. Service providers' interview transcripts were coded for three indicators of values: assumptions, actions, and end-states. Summative Content Analysis was used to transform qualitative codes into numeric data so they could be used to predict service users' recovery. In a series of growth curve models, the extent to which service providers' end-state values, as an indicator of consumer-led values, was shown to indirectly predict service users' recovery experiences, through their perceived choice and mastery. Findings confirm that providers' values are an important influence on service users' recovery. Results are discussed in terms of their implications for recovery-oriented theory and practice. PMID- 29323413 TI - Extracorporeal Membrane Oxygenation for Refractory Severe Respiratory Failure in Acute Interstitial Pneumonia. AB - Acute interstitial pneumonia (AIP) is a rare idiopathic interstitial lung disease with rapid progressive respiratory failure and high mortality. In the present report, three cases of AIP complicated by refractory respiratory failure supported with extracorporeal membrane oxygenation (ECMO) are presented. One male and two female patients (ages 27-59) were included. Venovenous ECMO support was provided using miniaturized systems, with two-site femoro-jugular circuit configuration. Despite lung protective ventilation, prone position and neuromuscular blockade, refractory respiratory failure of unknown etiology supervened (ratio of arterial oxygen partial pressure to fractional inspired oxygen 46-130) and ECMO was initiated after 3-7 days of mechanical ventilation. AIP diagnosis was established after exclusion of infectious and noninfectious acute respiratory distress syndrome on the basis of clinical and analytical data, bronchoalveolar lavage analysis and lung imaging, with a confirmatory surgical lung biopsy revealing diffuse alveolar damage of unknown etiology. Immunosuppressive treatment consisted in high-dose corticosteroids and cyclophosphamide in one case. Two patients survived to hospital discharge. ECMO allowed AIP diagnosis and treatment in the presence of refractory respiratory failure, therefore reducing ventilator-induced lung injury and bridging lung recovery in two patients. ECMO referral should be considered in refractory respiratory failure if AIP is suspected. PMID- 29323414 TI - On the solution multiplicity of the Fleishman method and its impact in simulation studies. AB - The Fleishman third-order polynomial algorithm is one of the most-often used non normal data-generating methods in Monte Carlo simulations. At the crux of the Fleishman method is the solution of a non-linear system of equations needed to obtain the constants to transform data from normality to non-normality. A rarely acknowledged fact in the literature is that the solution to this system is not unique, and it is currently unknown what influence the different types of solutions have on the computer-generated data. To address this issue, analytical and empirical investigations were conducted, aimed at documenting the impact that each solution type has on the design of computer simulations. In the first study, it was found that certain types of solutions generate data with different multivariate properties and wider coverage of the theoretical range spanned by population correlations. In the second study, it was found that previously published recommendations from Monte Carlo simulations could change if different types of solutions were used to generate the data. A mathematical description of the multiple solutions to the Fleishman polynomials is provided, as well as recommendations for users of this method. PMID- 29323415 TI - Selecting polychoric instrumental variables in confirmatory factor analysis: An alternative specification test and effects of instrumental variables. AB - The polychoric instrumental variable (PIV) approach is a recently proposed method to fit a confirmatory factor analysis model with ordinal data. In this paper, we first examine the small-sample properties of the specification tests for testing the validity of instrumental variables (IVs). Second, we investigate the effects of using different numbers of IVs. Our results show that specification tests derived for continuous data are extremely oversized at all sample sizes when applied to ordinal variables. Possible modifications for ordinal data are proposed in the present study. Simulation results show that the modified specification tests with all available IVs are able to detect model misspecification. In terms of estimation accuracy, the PIV approach where the IVs outnumber the endogenous variables by one produces a lower bias but a higher variation than the PIV approach with more IVs for correctly specified factor loadings at small samples. PMID- 29323416 TI - Citizenship and Community Mental Health Care. AB - Citizenship is an approach to supporting the social inclusion and participation in society of people with mental illnesses. It is receiving greater attention in community mental health discourse and literature in parallel with increased awareness of social determinants of health and concern over the continued marginalization of persons with mental illness in the United States. In this article, we review the definition and principles of our citizenship framework with attention to social participation and access to resources as well as rights and responsibilities that society confers on its members. We then discuss our citizenship research at both individual and social-environmental levels, including previous, current, and planned efforts. We also discuss the role of community psychology and psychologists in advancing citizenship and other themes relevant to a citizenship perspective on mental health care and persons with mental illness. PMID- 29323418 TI - Synthesis of 2-d-acrylamide. AB - 2-d-Acrylamide was synthesized via the 2-step procedure starting from acrylonitrile and deuterium oxide. This procedure affords 2-d-acrylamide in 99.9% chemical purity and 98.4% isotopic enrichment. PMID- 29323417 TI - Loss of Ethanol Inhibition of N-Methyl-D-Aspartate Receptor-Mediated Currents and Plasticity of Cerebellar Synapses in Mice Expressing the GluN1(F639A) Subunit. AB - BACKGROUND: Glutamatergic N-methyl-d-aspartate receptors (NMDARs) are well known for their sensitivity to ethanol (EtOH) inhibition. However, the specific manner in which EtOH inhibits channel activity and how such inhibition affects neurotransmission, and ultimately behavior, remains unclear. Replacement of phenylalanine 639 with alanine (F639A) in the GluN1 subunit reduces EtOH inhibition of recombinant NMDARs. Mice expressing this subunit show reduced EtOH induced anxiolysis, blunted locomotor stimulation following low-dose EtOH administration, and faster recovery of motor function after moderate doses of EtOH, suggesting that cerebellar dysfunction may contribute to some of these behaviors. In the mature mouse cerebellum, NMDARs at the cerebellar climbing fiber (CF) to Purkinje cell (PC) synapse are inhibited by low concentrations of EtOH and the long-term depression (LTD) of parallel fiber (PF)-mediated currents induced by concurrent activation of PFs and CFs (PF-LTD) requires activation of EtOH-sensitive NMDARs. In this study, we examined cerebellar NMDA responses and NMDA-mediated synaptic plasticity in wild-type (WT) and GluN1(F639A) mice. METHODS: Patch-clamp electrophysiological recordings were performed in acute cerebellar slices from adult WT and GluN1(F639A) mice. NMDAR-mediated currents at the CF-PC synapse and NMDAR-dependent PF-LTD induction were compared for genotype dependent differences. RESULTS: Stimulation of CFs evoked robust NMDA-mediated excitatory postsynaptic currents (EPSCs) in PCs that were similar in amplitude and kinetics between WT and GluN1(F639A) mice. NMDA-mediated CF-PC EPSCs in WT mice were significantly inhibited by EtOH (50 mM) while those in mutant mice were unaffected. Concurrent stimulation of CF and PF inputs induced synaptic depression of PF-PC EPSCs in both WT and mutant mice, and this depression was blocked by the NMDA antagonist DL-APV. The synaptic depression of PF-PC EPSCs in WT mice was also blocked by a low concentration of EtOH (10 mM) that had no effect on plasticity in GluN1(F639A) mice. CONCLUSIONS: These results demonstrate that inhibition of cerebellar NMDARs may be a key mechanism by which EtOH affects cerebellar-dependent behaviors. PMID- 29323419 TI - Evaluation of viral contamination in a baculovirus expression system. AB - Insect expression systems based on baculovirus are widely used for generating recombinant proteins. Here, the infectivity of baculoviruses under the physiological stresses of 'freeze-thaw' and sonication and the baculoviral contamination of recombinant proteins after protein purification were evaluated. Our findings suggest that Nonidet P-40 (NP-40) treatment of baculoviruses completely abolishes their infectivity and that recombinant proteins purified with affinity beads do not include infectious baculoviruses. We therefore suggest that baculovirus is completely inactivated by NP-40 treatment and that recombinant proteins are unlikely to be contaminated with infectious baculoviruses after their affinity purification. PMID- 29323420 TI - On the influence of lipid-induced optical anisotropy for the bioimaging of exo- or endocytosis with interference microscopic imaging. AB - Some implementations of interference microscopy imaging use digital holographic measurements of complex scattered fields to reconstruct three-dimensional refractive index maps of weakly scattering, semi-transparent objects, frequently encountered in biological investigations. Reconstruction occurs through application of the object scattering potential which assumes an isotropic refractive index throughout the object. Here, we demonstrate that this assumption can in some circumstances be invalid for biological imaging due to the presence of lipid-induced optical anisotropy. We show that the nanoscale organization of lipids in the observation of cellular endocytosis with polarized light induces a significant change in far-field scattering. We obtain this result by presenting a general solution to Maxwell's equations describing light scattering of core-shell particles near an isotropic substrate covered with an anisotropic thin film. This solution is based on an extension of the Bobbert-Vlieger solution for particle scattering near a substrate delivering an exact solution to the scattering problem in the near field as well as far field. By applying this solution to study light scattering by a lipid vesicle near a lipid bilayer, whereby the lipids are represented through a biaxial optical model, we conclude through ellipsometry concepts that effective amounts of lipid-induced optical anisotropy significantly alter far-field optical scattering in respect to an equivalent optical model that neglects the presence of optical anisotropy. PMID- 29323421 TI - Head and Neck Cancer Tumor Seeding at the Percutaneous Endoscopic Gastrostomy Site. AB - The National Institutes of Health National Cancer Institute estimates that over 13,000 new cases of head and neck cancer (HNC) will be diagnosed in 2017. Patients with HNC often require enteral nutrition (EN) via gastrostomy tube to provide nutrition support and hydration because of tumor obstruction of the oropharynx and/or cumulative effects of chemoradiation therapy. The percutaneous endoscopic gastrostomy (PEG) tube has become the preferred technique for EN access because placement is considered a minimally invasive procedure. There are 3 methods of PEG placement: Gauderer-Ponsky "pull," Sachs-Vine "push," and Russell "push" method. The Gauderer-Ponsky "pull" method has become the preferred method of PEG placement. It has been previously reported that the rate of stomal metastasis can be 0.5%-1% of those undergone the Gauderer-Ponsky "pull" method that is consistent with HNC morphology. Other researchers believe the rate may be as high as 0.5%-3%. This article reviews the 3 methods of PEG placement, as well as all potential complications, including metastatic seeding at the PEG site. In addition, 1 additional case of tumor seeding at the PEG site will be reviewed. Consideration for avoidance of the Gauderer-Ponsky pull method of PEG placement or other methods of feeding tube placement where the gastrostomy tube has to pass through the oral cavity before exiting the abdominal wall in patients with squamous cell carcinoma of the head and neck should be considered. PMID- 29323422 TI - Community interest and feasibility of using a novel smartphone-based formaldehyde exposure detection technology. AB - OBJECTIVE: This study is the first community engagement phase of a project to develop a residential formaldehyde detection system. The objectives were to conduct a feasibility assessment for device use, and identify factors associated with concerns about environmental exposure and community interest in this device. DESIGN AND SAMPLE: A cross-sectional, internet-based survey employing community based participatory research principles was utilized. 147 individuals participated from a focused Waycross, Georgia (58.5%) and broader national sample (41.5%). MEASURES: Variables included acceptable cost and number of testing samples, interest in conducting tests, levels of concern over pollutants, health status, housing, and demographics. RESULTS: The majority of participants desired a system with fewer than 10 samples at <=$15.00 per sample. Statistically significant higher levels of concern over air quality, formaldehyde exposure, and interest in testing formaldehyde were observed for those with overall worse health status and living in the Waycross, Georgia geographic region. Significant differences in formaldehyde testing interest were observed by health status (OR = 0.31, 95% CI = 0.12-0.81 for home testing) and geographic location (OR = 3.16, 95% CI = 1.22-8.14 for home and OR = 4.06, 95% CI = 1.48-11.12 for ambient testing) in multivariate models. CONCLUSIONS: Geographic location and poorer general health status were associated with concerns over and interest in formaldehyde testing. PMID- 29323423 TI - Enteral Feeding Tube Clogging: What Are the Causes and What Are the Answers? A Bench Top Analysis. AB - BACKGROUND: Clogged enteral feeding tubes remain a significant barrier to the delivery of nutrition, hydration, and medications to patients who cannot tolerate oral intake. There is limited research that compares the relative efficacy of different methods used to clear a clogged feeding tube. The objectives of this study were to better understand the factors that contribute to enteral feeding tube clogging and to test the efficacy of 3 methods for clearing clogged feeding tubes. METHODS: Three formulations of clogs were artificially created and tested in vitro and composed of various quantities of crushed medication (ie, aspirin) and 0.15 g coagulated protein (ie, tofu). The following 3 clog clearing strategies were tested on all clog types (n = 5 clogs/formulation/treatment): warm water flushes, an enzyme treatment, and an actuated mechanical occlusion clearing device. RESULTS: The variable among the clog types that appears most responsible for decreased clearing success is the state of the coagulated protein. Dried-out protein appears to makes a greater difference than increasing the medication quantity. The actuated mechanical occlusion clearing device was significantly more successful (93%) when compared with warm water flushes (20%) and the commercially available enzyme treatment (33%; P < .005) at clearing the clogs. The actuated device required significantly less total procedure time (P < .005) and total nursing time (P < .005) when compared with the other 2 clearing methods. CONCLUSIONS: When clogs occur, they can be quickly and effectively resolved by the actuated device, but other methodologies such as water and enzyme treatments may be of assistance. PMID- 29323424 TI - In vitro and in vivo effects of ophthalmic solutions on silicone hydrogel bandage lens material Senofilcon A. AB - BACKGROUND: Acuvue Oasys silicone hydrogel contact lenses (Senofilcon A) are used as bandage lenses and often combined with ophthalmic solutions in the treatment of ocular diseases. Concerns have been raised regarding the compatibility and effect of eye-drop solutions on the bandage lenses, which have led to frequent replacement of lenses causing clinical problems. Some patients experience pain or discomfort during treatments and the accumulation of drugs and preservatives in lenses has been suggested as a possible reason. The aim with this study was to investigate the effect of ophthalmic solutions on silicone hydrogel bandage lens material Senofilcon A in vitro and in vivo. METHODS: The effect of three common ophthalmic solutions Isopto-Maxidex, Timosan and Oftaquix on Acuvue Oasys (Senofilcon A) bandage lenses was evaluated. An in vitro model method was developed where drug and preservative uptake by Acuvue Oasys was monitored with ultraviolet-visible spectroscopy and laser desorption ionisation mass spectrometry. Surface morphology changes of the lenses were evaluated using scanning electron microscopy. The method was then implemented for the in vivo pilot study evaluating lenses worn by patients. RESULTS: In vitro model study monitoring the drug and preservatives uptake showed that the active ingredients from all the eye drops together with preservatives were taken up by the lenses in significant amounts. For the in vivo study no traces of active ingredients or preservatives could be found on the worn and treated lenses regardless of time being worn or dosage profiles. The surface morphology changes in the in vivo study were also minor in contrast to the changes observed in the in vitro scanning electron microscopy images. CONCLUSION: The in vivo results demonstrate minor effects of the ophthalmic solutions on the worn lenses. These results do not support the building up of preservatives and drugs on the contact lenses as the cause of pain or discomfort experienced by some patients, which is encouraging for the use of bandage lenses in combination with ophthalmic solutions. PMID- 29323425 TI - Evaluating Mid-Upper Arm Circumference Z-Score as a Determinant of Nutrition Status. AB - BACKGROUND: Mid-upper arm circumference (MUAC) z-score, has recently been listed as an independent indicator for pediatric malnutrition. This investigation examined the relationship between MUAC z-score and the z-scores for conventional indicators (ie, weight-for-length and body mass index) to expand the available evidence for nutrition classification z-score threshold ranges in U.S. practice settings. METHODS: This was a single-center study of children through 18 years of age seen between October 2015 and September 2016. Height and weight were obtained on intake. MUAC was measured at midpoint of the humerus, between the acromion and olecranon. Age-specific and gender-specific z-score values were calculated using published lambda, MU, and sigma values derived from Centers for Disease Control and Prevention reference data. Nutrition status was determined from biochemical data; prior history; anthropometrics; weight gain velocity; weight loss, if present; and nutrient intake. RESULTS: 5,004 children (7.5 +/- 5.7 years, 53% boys) were evaluated. As expected, MUAC z-scores were significantly correlated with body mass index (r = 0.789, P < .01) and weight-for-length (r = 0.638, P < .01) z-scores. There was a large degree of overlap in z-scores for all indicators between nutrition status groups; however, MUAC z-scores spanned a narrower range of values such that mean MUAC z-scores are lower in children classified as overweight/obese and higher in children who were severely malnourished than the corresponding body mass index or weight-for-length z-scores. CONCLUSION: These data are the first to suggest that the z-score ranges used to define various stages of malnutrition may not be the same for all indicators. PMID- 29323426 TI - Vision in children with autism spectrum disorder: a critical review. AB - Autism spectrum disorder (ASD) is a common neurodevelopmental condition with approximately 1-2 per cent prevalence in the population. The condition has lifelong effects for the individual and family, and early intervention and management helps maximise quality of life and outcomes. Many studies of vision in ASD have attempted to link the behavioural and sensory deficits in ASD with underlying visual processing. From this work, it is clear that individuals with ASD 'see' and process the world differently, but there remain gaps in our understanding. This review will summarise our current knowledge of key aspects of visual functions and the optometric profile of ASD. This includes findings regarding visual acuity and contrast sensitivity, refractive error, eye movements, binocular vision, near visual functions and retinal structure in ASD. From this, a pattern of knowledge emerges for children with ASD: we should expect normal visual acuity; there will likely be atypical eye movements and susceptibility for subtle visuo-motor deficits, there is an increased prevalence of strabismus; an increased likelihood of astigmatism and possibly other refractive errors; attention, crowding and task complexity will likely be problematic; and retinal structure and function may be compromised. Bringing this together, these findings highlight that further work is necessary, not only to understand how higher-level functions link to behaviours, but also to ensure there is a sound understanding of the building-blocks of vision to fully grasp the profile of visual processing as a whole in ASD. This review will give a translational viewpoint for clinicians, and underline the benefits of comprehensive vision care in ASD. PMID- 29323427 TI - Duration of androgen deprivation therapy and nadir of testosterone at 20 ng/dL predict testosterone recovery to supracastrate level in prostate cancer patients who received external beam radiotherapy. AB - OBJECTIVES: To determine the predictors of testosterone recovery after termination of androgen deprivation therapy in high/intermediate-risk prostate cancer patients receiving external beam radiation therapy with neoadjuvant and adjuvant androgen deprivation therapy. METHODS: A total of 82 patients who underwent external beam radiation therapy with androgen deprivation therapy for prostate cancer were retrospectively analyzed. Serum testosterone levels after androgen deprivation therapy terminations were studied. Cox proportional hazard models and the Kaplan-Meier method were used for statistical analysis. RESULTS: Median age, baseline testosterone, nadir testosterone and duration of androgen deprivation therapy were 73 years, 456 ng/dL, 16 ng/dL and 26 months, respectively. Androgen deprivation therapy duration of 33 months (hazard ratio 0.13; P = 0.0018), nadir testosterone of 20 ng/dL (hazard ratio 0.35; P = 0.0112) and testosterone >50 ng/dL at 6 months after androgen deprivation therapy termination (hazard ratio 0.21; P = 0.0075) were significantly associated with testosterone recovery to normal levels (200 ng/dL) on multivariate analysis. Androgen deprivation therapy duration of 33 months (hazard ratio 0.31; P = 0.0023) and nadir testosterone of 20 ng/dL (hazard ratio 0.38; P = 0.0012) were significantly associated with testosterone recovery to the supracastrate level (50 ng/dL) on multivariate analysis. After dividing patients into three risk groups, the rate of testosterone recovery to the normal level after 2 years of androgen deprivation therapy termination was 100% in the low-risk group versus 20.8% in the high-risk group (P < 0.0001); the rate of testosterone recovery to the supracastrate level was 100% in the low-risk group versus 51.5% in the high risk group (P < 0.0001). CONCLUSIONS: Duration of androgen deprivation therapy and achievement of nadir testosterone 20 ng/dL both predict testosterone recovery to the supracastrate level in prostate cancer patients undergoing external beam radiation therapy with androgen deprivation therapy. PMID- 29323429 TI - Editor's Note. PMID- 29323428 TI - Enteral Nutrition in the Management of Crohn's Disease: Reviewing Mechanisms of Actions and Highlighting Potential Venues for Enhancing the Efficacy. AB - Crohn's disease (CD) is a chronic condition that affects the gut and has adverse effects on growth and development. There is a global increase in the incidence and prevalence rates, and several factors are believed to contribute to this rise, including dietary habits. In contrast, the use of enteral nutrition (EN) as an exclusive source of nutrition is increasingly becoming the preferred induction treatment of pediatric CD patients in part to address the nutrition complications. However, EN therapy is considered less effective in adults with CD. A better understanding of the molecular mechanisms of enteral therapy will help improve the clinical management of CD. It is increasingly becoming evident that the therapeutic utility of EN is in part due to the reversal of the microbial changes and the direct immunomodulatory effects. Moreover, there is a potential tendency for enhancing the efficacy of EN therapy by improving the palatability of the given formulas and, more important, by magnifying the anti inflammatory properties. Recent observations have shown that the immunomodulatory effects of EN are mediated at least in part by blocking nuclear factor-kappaB. Furthermore, it is likely that several ingredients of EN contribute to this activity, in particular glutamine and arginine amino acids. In addition, manipulating the composition of EN therapy by altering concentrations of the key ingredients is found to have the potential for more efficient therapy. In this review, the underlying mechanisms of EN actions will be discussed further with a focus on the potential methods for enhancing the efficacy. PMID- 29323430 TI - Transsphincteric repair of rectourethral fistulas: 15 years of experience with the York Mason approach. AB - OBJECTIVES: To evaluate the surgical and functional outcomes of our single institution's 15-year experience with surgically treated rectourethral fistulas using a modification of the York Mason technique. METHODS: Prospectively recorded data between 2002 and 2016 of all patients who underwent transsphincteric repair of rectourethral fistula using a modified York Mason technique at Eskilstuna County Hospital, Eskilstuna, Sweden, were assessed. A total of 20 consecutive patients, including 17 referrals (85%) and three patients (15%) from our hospital have undergone the modified York Mason procedure. The surgical and functional outcomes were evaluated. RESULTS: Of the 20 patients, 18 were repaired successfully (90%), and one was combined with a dartos muscle interposition flap. No fistula recurrence occurred in the 18 successful repairs during the median follow-up time of 84.7 months. Before fistula repair, 12 patients (60%) underwent a diverting stoma. The remaining eight patients (40%) underwent repair and synchronous diverting stoma. We did not find any significant differences between patients in which the repair was successful compared with patients with failed repair, but diabetes, smoking and preoperative irradiation were much more frequent in the failed group. Of the 18 patients who had a successful repair, 17 patients experienced normal voiding and no urinary incontinence. One patient was suffering from postprostatectomy incontinence before rectourethral fistula repair, and was successfully treated with Scott prosthesis. All the 13 patients in whom the stoma had been closed reported intact fecal continence and no anal stenosis postoperatively. CONCLUSIONS: The transsphincteric modified York Mason approach offers excellent exposure and a high fistula closure rate without fecal and urinary incontinence. PMID- 29323431 TI - Revisiting empirical rules for the determination of the absolute configuration of cascarosides and other (ox-)anthrones. AB - The introduction of the C10 -stereocenter of (ox-)anthrones by plant organisms is not stereospecific. Consequently, often, both (10S)- and (10R)-diastereomers can be found in the same plant. Motivated by the importance of a correct assignment of the configuration at C10 , this study revisits the nuclear magnetic resonance and electronic circular dichroism-based empirical rules for the determination of the absolute configuration by molecular dynamic simulations and electronic circular dichroism spectrum calculations. Furthermore, a vibrational circular dichroism spectroscopic characterization of these large and conformationally very flexible molecules reveals spectral signatures, which can be used to specifically distinguish the C10 stereochemistry. A detailed analysis of the underlying vibrational modes suggests that the observed spectral pattern of the investigated cascarosides may be generally characteristic for the C10 -stereocenter of (ox )anthrones and that they can be used for empirical spectra-structure correlations. PMID- 29323432 TI - Orthogonal 19 F-Labeling for Solid-State NMR Spectroscopy Reveals the Conformation and Orientation of Short Peptaibols in Membranes. AB - Peptaibols are promising drug candidates in view of their interference with cellular membranes. Knowledge of their lipid interactions and membrane-bound structure is needed to understand their activity and should be, in principle, accessible by solid-state NMR spectroscopy. However, their unusual amino acid composition and noncanonical conformations make it very challenging to find suitable labels for NMR spectroscopy. Particularly in the case of short sequences, new strategies are required to maximize the structural information that can be obtained from each label. Herein, l-3 (trifluoromethyl)bicyclopent[1.1.1]-1-ylglycine, (R)- and (S) trifluoromethylalanine, and 15 N-backbone labels, each probing a different direction in the molecule, have been combined to elucidate the conformation and membrane alignment of harzianin HK-VI. For the short sequence of 11 amino acids, 12 orientational constraints have been obtained by using 19 F and 15 N NMR spectroscopy. This strategy revealed a beta-bend ribbon structure, which becomes realigned in the membrane from a surface-parallel state towards a membrane spanning state, with increasing positive spontaneous curvature of the lipids. PMID- 29323434 TI - Thulium laser ablation facilitates retrograde intra-renal surgery for upper urinary tract urothelial carcinoma. PMID- 29323433 TI - Electrically Driven Microengineered Bioinspired Soft Robots. AB - To create life-like movements, living muscle actuator technologies have borrowed inspiration from biomimetic concepts in developing bioinspired robots. Here, the development of a bioinspired soft robotics system, with integrated self-actuating cardiac muscles on a hierarchically structured scaffold with flexible gold microelectrodes is reported. Inspired by the movement of living organisms, a batoid-fish-shaped substrate is designed and reported, which is composed of two micropatterned hydrogel layers. The first layer is a poly(ethylene glycol) hydrogel substrate, which provides a mechanically stable structure for the robot, followed by a layer of gelatin methacryloyl embedded with carbon nanotubes, which serves as a cell culture substrate, to create the actuation component for the soft body robot. In addition, flexible Au microelectrodes are embedded into the biomimetic scaffold, which not only enhance the mechanical integrity of the device, but also increase its electrical conductivity. After culturing and maturation of cardiomyocytes on the biomimetic scaffold, they show excellent myofiber organization and provide self-actuating motions aligned with the direction of the contractile force of the cells. The Au microelectrodes placed below the cell layer further provide localized electrical stimulation and control of the beating behavior of the bioinspired soft robot. PMID- 29323435 TI - Soluble CD14 levels in plasma and breastmilk of Malawian HIV+ women: Lack of association with morbidity and mortality in their exposed infants. AB - PROBLEM: Data on soluble CD14 (sCD14) during pregnancy and lactation are scarce. We assessed the levels of sCD14 in plasma and breastmilk of Malawian HIV-positive women and evaluated the possible association with morbidity and mortality in the HIV-exposed children. METHOD OF STUDY: One hundred and forty-nine mother/child pairs were studied. Women received antiretroviral therapy from 26 weeks of gestation to at least 6 months of exclusive breastfeeding. sCD14 concentrations were determined using an enzyme-linked immunosorbent assay. RESULTS: sCD14 levels measured at 26 weeks of pregnancy (median: 1418 ng/mL, IQR: 1086-1757) were inversely correlated to maternal CD4+ cell count (r = -.283, P = .001) and to neonatal birthweight (r = -.233, P = .008). At 6 months, sCD14 plasma levels were significantly higher compared to baseline (1993 ng/mL, IQR: 1482-2604, P < .001), and breastmilk sCD14 levels (7668 ng/mL, IQR: 5495-10207) were 4-fold higher than in plasma (although the concentrations in the two compartments were not correlated). No association was found between sCD14 levels in plasma or breastmilk and morbidity or mortality in children. CONCLUSION: Higher sCD14 levels in HIV-positive women were associated with a more compromised maternal immunological status and to a lower neonatal birthweight, but not to poorer clinical outcomes in the HIV-exposed children. PMID- 29323436 TI - Molecular characterization and gene silencing of Laccase 1 in the grain aphid, Sitobion avenae. AB - Laccase 1 (Lac1), a polyphenol oxidase, has been proposed to be involved in insect iron metabolism and immunity responses. However, little information is available on the roles of Lac 1 in insect-plant interactions. The grain aphid Sitobion avenae is one of the most destructive pests of cereal, directly drawing phloem sap and transmitting viruses. In the present study, we first cloned the open reading frame (ORF) of Lac 1 from S. avenae, and the putative protein sequence was predicted to have a carboxyl-terminal transmembrane domain. We found that SaLac1 had higher expression levels in the fourth and adult stages using reverse transcription real-time quantitative PCR (RT-qPCR). SaLac 1 was highly expressed in the salivary gland and midgut and also in wingless compared with winged morphs. After feeding on aphid-resistant wheat with a high total phenol content, the expression level of SaLac 1 increased significantly. RNA interference (RNAi) by oral feeding successfully inhibited the transcript levels of SaLac 1, and the knockdown of Lac 1 significantly decreased the survival rate of S. avenae on aphid-resistant wheat. Our study demonstrated that S. avenae Lac1 was involved in the detoxification of phenolic compounds in wheat and was essential for the aphid to adapt to resistant plants. PMID- 29323437 TI - Parenteral Nutrition Safety: The Story Continues. AB - Parenteral nutrition (PN) is an important therapeutic modality used for a variety of indications in adults, children, and infants. PN is a complex, high-alert medication that requires appropriate education and ongoing competency assessment to ensure a safe process. PN is not recognized by many organizations as a medication, which leads to underreporting of errors. This article will provide important insight and recommendations to promote a safe PN process. PMID- 29323438 TI - Understanding the Unexpected Product Distribution in the Aerial Oxidation of Carbene-Stabilized Diphosphorus Complex. AB - Oxidation of nonmetallic singlet molecules by oxygen has its own share of intricacies. Herein, by means of DFT and ab initio techniques, mechanistic details of the aerial oxidation of an N-heterocyclic carbene (NHC) stabilized diphosphorus complex are revealed. This particular oxidation process is known to produce an unexpected P-P bond containing diphosphorus tetroxide complex, instead of the more thermodynamically stable oxo-bridged (P-O-P) compound. These findings suggest that the P-P bond containing less stabilized species is a kinetically controlled product (KCP) and obtained due to the presence of lower lying transition states (TSs) in the pathway leading to its formation, relative to the higher lying corresponding minimum-energy crossing points (MECPs) present in the pathway involved in the formation of the oxo-bridged species, which is the thermodynamically controlled product (TCP). Thus, an intriguing variant of the well-known KCP/TCP phenomenon is presented here, in which the KCP is formed not by merely traditionally known lower barrier heights of TSs involved in the formation of KCP, but by faster transmission of a system through a low barrier TS relative to a higher lying MECP. Additionally, the faster kinetics of an irreversible unimolecular O-O dissociation step, which avoids the formation of the TCP is a contributing factor in dictating the fate of the reaction. The insights provided herein may help to understand the oxidation of other P-P containing species, such as black phosphorene. PMID- 29323439 TI - A Synthetic Binder of Breast Cancer Stem Cells. AB - Cancer stem cells (CSCs) are associated with drug resistance, metastasis and recurrence of cancer. A synthetic binder of CSCs can provide a valuable tool to study the biology of CSCs and a lead to develop imaging, diagnostic and therapeutic agents targeting CSCs. Herein, a synthetic ligand (1) that specifically binds to CSCs over non-CSCs of breast cancer cells was identified for the first time via a cell-binding screening of a chemical library. The ligand 1 showed specific binding to CD24- /CD44+ /ALDH+ CSC population of MCF-7 and MDA MB-231. We have demonstrated that 1-immobilized beads can be used as matrices for affinity isolation of 1-binding CSC population from breast cancer cells. The 1 binding population showed significantly increased expressions of stemness associated transcription factors. Importantly, the 1-binding population demonstrated accelerated tumor growth in vivo, and the resulting tumor displayed an increased migratory activity and high expressions of CSC markers. PMID- 29323440 TI - Synthesis of Benzofuranones via Palladium-Catalyzed Intramolecular Alkoxycarbonylation of Alkenylphenols. AB - Herein, a new catalytic system to synthesize benzofuranones is reported. A palladium-catalyzed intramolecular alkoxycarbonylation is employed to generate 3 substituted-benzofuran-2(3H)-ones from alkenylphenols under mild reaction conditions, linked to an ex situ formation of CO from N-formylsaccharin. The carefully chosen catalytic system enables an efficient reaction with a novel functional group tolerance, despite the high polymerization tendency of the starting material. PMID- 29323441 TI - A low muscle mass increases mortality in compensated cirrhotic patients with sepsis. AB - BACKGROUND & AIMS: Severe infections and muscle wasting are both associated to poor outcome in cirrhosis. A possible synergic effect of these two entities in cirrhotic patients has not been previously investigated. We aimed at analysing if a low muscle mass may deteriorate the outcome of cirrhotic patients with sepsis. METHODS: Consecutive cirrhotic patients hospitalized for sepsis were enrolled in the study. Patients were classified for the severity of liver impairment (Child Pugh class) and for the presence of "low muscle mass" (mid-arm muscle circumference<5th percentile). The development of complication during hospitalization and survival was analysed. RESULTS: There were 74 consecutive cirrhotics with sepsis. Forty-three of these patients showed low muscle mass. In patients with and without low muscle mass, severity of liver disease and characteristics of infections were similar. Mortality tended to be higher in patients with low muscle mass (47% vs 26%, P = .06). A multivariate analysis selected low muscle mass (P < .01, HR: 3.2, IC: 1.4-4.8) and Child-Pugh C (P < .01, HR: 3.3, 95% IC: 1.5-4.9) as independent predictors of in-hospital mortality. In Child-Pugh A-B patients, mortality was higher in patients with low muscle mass compared with those without (50% vs 16%; P = .01). The mortality rate and the incidence of complications in malnourished patients classified in Child Pugh A-B were similar to those Child-Pugh C. CONCLUSIONS: Low muscle mass worsen prognosis in cirrhotic patients with severe infections. This is particularly evident in patients with Child A-B cirrhosis in whom the coexistence of low muscle mass and sepsis caused a negative impact on mortality similar to that observable in all Child C patients with sepsis. PMID- 29323442 TI - Mental health inpatients' and staff members' suggestions for reducing physical restraint: A qualitative study. AB - : WHAT IS KNOWN ON THE SUBJECT?: Restraint has negative psychological, physical and relational consequences for mental health patients and staff. Restraint reduction interventions have been developed (e.g., "Safewards"). Limited qualitative research has explored suggestions on how to reduce physical restraint (and feasibility issues with implementing interventions) from those directly involved. WHAT DOES THIS PAPER ADD TO EXISTING KNOWLEDGE?: This paper explores mental health patients' and staff members' suggestions for reducing physical restraint, whilst addressing barriers to implementing these. Findings centred on four themes: improving communication and relationships; staffing factors; environment and space; and activities and distraction. Not all suggestions are addressed by currently available interventions. Barriers to implementation were identified, centring on a lack of time and/or resources; with the provision of more time for staff to spend with patients and implement interventions seen as essential to reducing physical restraint. WHAT ARE THE IMPLICATIONS FOR PRACTICE?: Improving communication and relationships between staff/patients, making staffing-related changes, improving ward environments and providing patient activities are central to restraint reduction in mental healthcare. Fundamental issues related to understaffing, high staff turnover, and lack of time and resources need addressing in order for suggestions to be successfully implemented. ABSTRACT: Introduction Physical restraint has negative consequences for all involved, and international calls for its reduction have emerged. Some restraint reduction interventions have been developed, but limited qualitative research explores suggestions on how to reduce physical restraint (and feasibility issues with implementation) from those directly involved. Aims To explore mental health patients' and staff members' suggestions for reducing physical restraint. Methods Interviews were conducted with 13 inpatients and 22 staff members with experience of restraint on adult mental health inpatient wards in one UK National Health Service Trust. Results Findings centred on four overarching themes: improving communication and relationships between staff/patients; making staff-related changes; improving ward environments/spaces; and having more activities. However, concerns were raised around practicalities/feasibility of their implementation. Discussion Continued research is needed into best ways to reduce physical restraint, with an emphasis on feasibility/practicality and how to make time in busy ward environments. Implications for Practice Improving communication and relationships between staff/patients, making staffing-related changes, improving ward environments and providing patient activities are central to restraint reduction in mental healthcare. However, fundamental issues related to understaffing, high staff turnover and lack of time/resources need addressing in order for these suggestions to be successfully implemented. PMID- 29323443 TI - Dicationic E4 Chains (E=P, As, Sb, Bi) Embedded in the Coordination Sphere of Transition Metals. AB - The oxidation chemistry of the complexes [{CpMo(CO)2 }2 (MU,eta2 :eta2 -E2 )] (E=P (A), As (B), Sb (C), Bi (D)) is compared. The oxidation of A-D with [Thia]+ (=[C12 H8 S2 ]+ ) results in the selective formation of the dicationic E4 complexes [{CpMo(CO)2 }4 (MU4 ,eta2 :eta2 :eta2 :eta2 -E4 )]2+ (E=P (1), As (2), Sb (3), Bi (4)), stabilized by four [CpMo(CO)2 ] fragments. The formation of the corresponding monocations [A]+ , [C]+ , and [D]+ could not be detected by cyclic voltammetry, EPR, or NMR spectroscopy. This finding suggests that dimerization is fast and that there is no dissociation in solution, which was also predicted by DFT calculations. However, EPR measurements of 2 confirmed the presence of small amounts of the radical cation [B]+ in solution. Single-crystal X-ray diffraction revealed that the products 1 and 2 feature a zigzag E4 chain in the solid state while 3 and 4 bear a central E4 cage with a distorted "butterfly-like" geometry. Additionally, 1 can be easily and reversibly converted into a symmetric and an unsymmetric form. PMID- 29323444 TI - Impact of new diagnostic criteria for gestational diabetes. AB - AIM: In January 2015, the diagnostic and therapeutic criteria for gestational diabetes changed, with the goal of increasing the sensitivity of diagnosis and improving overall glycemic control, and thus reducing adverse pregnancy outcomes. Our primary aim was to evaluate the effect of the new guidelines on the incidence of diagnosis of gestational diabetes and the incidence of therapeutic interventions. Our secondary aim was to look at the incidence of adverse pregnancy outcomes. METHODS: A retrospective clinical audit was conducted at a regional hospital to compare the incidence of gestational diabetes, and the specific maternal and neonatal outcomes before and after the change in guidelines was implemented. Data were collected via chart review for a 6-month period before and after the change in guidelines in January 2015. Data collected included demographics, neonatal and maternal outcomes, and the treatment type used for patients diagnosed with gestational diabetes. RESULTS: There was a significant increase in the incidence of diagnosis of gestational diabetes (9.8-19.6%; P < 0.001), and an overall increase in the use of pharmacological treatments for gestational diabetes. There was no significant difference in the incidence of the adverse outcomes measured, including cesarean delivery and macrosomia. There was no significant change in mean fetal weight. CONCLUSION: Despite a doubling of the incidence of diagnosis of gestational diabetes, and a consequent increase in pharmacological interventions, the change in diagnostic and therapeutic criteria did not significantly reduce the neonatal or maternal adverse outcomes measured. PMID- 29323446 TI - Response to 'Gum chewing aids bowel function return and analgesic requirements after bowel surgery: a randomised controlled trial'. PMID- 29323447 TI - Solvation-Induced Changes in the Mechanism of Alcohol Oxidation at Gold/Titania Nanocatalysts in the Aqueous Phase versus Gas Phase. AB - Gold/titania catalysts are widely used for key reactions, notably including the selective oxidation of alcohols in the liquid phase. Our large-scale ab initio simulations disclose that the liquid-phase reaction mechanism is distinctly different from that in the gas phase because of active participation of water molecules. While concerted charge transfers related to O2 splitting and abstraction of both protonic and hydridic hydrogens are enforced under dry conditions, stepwise charge transfer is preferred in the condensed phase. Dissociation of reactive water molecules and subsequent Grotthuss migration of protonic defects, H+ (aq), allows for such a decoupling of the oxidation process, both in time and space. It is expected that these observations are paradigmatic for heterogeneous catalysis in aqueous phases. PMID- 29323448 TI - Catalytic Desymmetrizing Dehydrogenation of 4-Substituted Cyclohexanones through Enamine Oxidation. AB - A desymmetrizing dehydrogenation process catalyzed by a chiral primary amine is described herein. The reaction proceeds through the oxidation of a ketone enamine by IBX and enables the highly enantioselective desymmetrization of 4-substituted cyclohexanones with the generation of chiral 4-substituted cyclohexenones containing a remote gamma-stereocenter. PMID- 29323449 TI - Enhanced Ultrafast Nonlinear Optical Response in Ferrite Core/Shell Nanostructures with Excellent Optical Limiting Performance. AB - Nonlinear optical nanostructured materials are gaining increased interest as optical limiters for various applications, although many of them suffer from reduced efficiencies at high-light fluences due to photoinduced deterioration. The nonlinear optical properties of ferrite core/shell nanoparticles showing their robustness for ultrafast optical limiting applications are reported. At 100 fs ultrashort laser pulses the effective two-photon absorption (2PA) coefficient shows a nonmonotonic dependence on the shell thickness, with a maximum value obtained for thin shells. In view of the local electric field confinement, this indicates that core/shell is an advantageous morphology to improve the nonlinear optical parameters, exhibiting excellent optical limiting performance with effective 2PA coefficients in the range of 10-12 cm W-1 (100 fs excitation), and optical limiting threshold fluences in the range of 1.7 J cm-2 . These values are comparable to or better than most of the recently reported optical limiting materials. The quality of the open aperture Z-scan data recorded from repeat measurements at intensities as high as 35 TW cm-2 , indicates their considerably high optical damage thresholds in a toluene dispersion, ensuring their robustness in practical applications. Thus, the high photostability combined with the remarkable nonlinear optical properties makes these nanoparticles excellent candidates for ultrafast optical limiting applications. PMID- 29323450 TI - Theoretical Investigation of the Infrared Spectrum of 5-Bromo-2,4 pentadiynenitrile from a CCSD(T)/B3LYP Anharmonic Potential. AB - On the grounds of a hybrid CCSD(T)/B3LYP/aug-cc-pVTZ anharmonic potential and the use of a variational and variational-perturbational methods, the IR spectra of 5 bromo-2,4-pentadiynenitrile (BrC5 N) is revisited in the mid-infrared region up to 4500 cm-1 . A position and intensity analysis of our theoretical results allow us to assign the fundamental bands together with their combinations and overtones, in the aforementioned range of frequencies. The main objective of this work is to give an "a priori" complete IR spectrum of BrC5 N, which can be used as a guide for the low-intensity bands in areas not completely studied so far. PMID- 29323452 TI - Laparoscopic lateral pelvic lymph node dissection for rectal cancer - a video vignette. PMID- 29323451 TI - Microvascular involvement in Systemic Sclerosis and Systemic Lupus Erythematosus. AB - Microvascular changes play central roles in the pathophysiology of systemic sclerosis (SSc) and systemic lupus erythematosus (SLE), and represent major causes of morbidity and mortality in these patients. Therefore, clinical tools that can assess the microvasculature are of great importance both at the time of diagnosis and follow up of these cases. These tools include capillaroscopy, laser imaging techniques, infrared thermography and iontophoresis. In this review, we examined the clinical manifestations and pathobiology of microvascular involvement in SSc and SLE as well as the methodologies used to evaluate the microvasculature. This article is protected by copyright. All rights reserved. PMID- 29323453 TI - Patterning Graphene Surfaces with Iron-Oxide-Embedded Mesoporous Polypyrrole and Derived N-Doped Carbon of Tunable Pore Size. AB - This study develops a novel strategy, based on block copolymer self-assembly in solution, for preparing two-dimensional (2D) graphene-based mesoporous nanohybrids with well-defined large pores of tunable sizes, by employing polystyrene-block-poly(ethylene oxide) (PS-b-PEO) spherical micelles as the pore creating template. The resultant 2D nanohybrids possess a sandwich-like structure with Fe2 O3 nanoparticle-embedded mesoporous polypyrrole (PPy) monolayers grown on both sides of reduced graphene oxide (rGO) nanosheets (denoted as mPPy-Fe2 O3 @rGO). Serving as supercapacitor electrode materials, the 2D ternary nanohybrids exhibit controllable capacitive performance depending on the pore size, with high capacitance (up to 1006 F/g at 1 A/g), good rate performance (750 F/g at 20 A/g) and excellent cycling stability. Furthermore, the pyrolysis of mPPy-Fe2 O3 @rGO at 800 degrees C yields 2D sandwich-like mesoporous nitrogen-doped carbon/Fe3 O4 /rGO (mNC-Fe3 O4 @rGO). The mNC-Fe3 O4 @rGO nanohybrids with a mean pore size of 12 nm show excellent electrocatalytic activity as an oxygen reduction reaction (ORR) catalyst with a four-electron transfer nature, a high half-wave-potential of +0.84 V and a limiting current density of 5.7 mA/cm2 , which are well comparable with those of the best commercial Pt/C catalyst. This study takes advantage of block copolymer self-assembly for the synthesis of 2D multifunctional mesoporous nanohybrids, and helps to understand the control of their structures and electrochemical performance. PMID- 29323454 TI - A Bifunctional Highly Efficient FeNx /C Electrocatalyst. AB - Herein, a type of Fe, N-codoped carbon electrocatalyst (FeNx /C, Fe-N-BCNT#BP) containing bamboo carbon nanotubes and displaying bifunctional high catalytic efficiency for both oxygen reduction reaction (ORR) and carbon dioxide reduction reaction (CO2RR) is reported. It shows high electrocatalytic activity and stability for both the ORR process with onset potential of 1.03 VRHE in alkaline and the CO2RR to CO with high faradic efficiency up to 90% and selectivity of about 100% at low overpotential of 0.49 V. For CO2RR to CO, it is revealed that Fe3 C is active but the activity of FeNx centers is lower than that of C-N-based centers, contrary with that observed for ORR. Due to its low cost and high electrocatalytic performance for these two reduction reactions, the obtained catalyst is very promising for extensive application in future. The revealed huge activity difference of the same types of active sites for different reactions can efficiently guide the synthesis of advanced materials with multifunction. PMID- 29323455 TI - Selenocysteine inhibits human osteosarcoma cells growth through triggering mitochondrial dysfunction and ROS-mediated p53 phosphorylation. AB - Osteosarcoma represents the most common primary malignant bone tumor in children and adolescents, which shows severe resistance toward standard chemotherapy because of high invasive capacity and growing incidence. Selenocysteine (SeC) is a naturally available Se-containing amino acid that displays splendid anticancer activities against several human tumors. However, little information about SeC induced growth inhibition against human osteosarcoma is available. Herein, the anticancer efficiency and underlying mechanism of SeC against human osteosarcoma were evaluated in vitro and in vivo. The results revealed that SeC significantly inhibited MG-63 human osteosarcoma cells growth in vitro through induction of S phase arrest and apoptosis, as reflected by the decrease of cyclin A and CDK-2, PARP cleavage, and caspases activation. SeC treatment also resulted in mitochondrial dysfunction through affecting Bcl-2 family expression. Moreover, SeC triggered p53 phosphorylation by inducing reactive oxygen species (ROS) overproduction. ROS inhibition effectively blocked SeC-induced cytotoxicity and p53 phosphorylation. Importantly, MG-63 human osteosarcoma xenograft growth in nude mice was significantly suppressed in vivo through triggering apoptosis and p53 phosphorylation. These results indicated that SeC had the potential to inhibit human osteosarcoma cells growth in vitro and in vivo through triggering mitochondrial dysfunction and ROS-mediated p53 phosphorylation, which validated the potential application of Se-containing compounds in treatment of human osteosarcoma. PMID- 29323456 TI - Tuning the Carrier Confinement in GeS/Phosphorene van der Waals Heterostructures. AB - Van der Waals (vdW) heterostructures, which have the advantage of integrating excellent properties of the stacked 2D materials by vdW interactions, have gained increasing attention recently. In this work, within the framework of density functional theory calculations, the electronic properties of vdW heterostructure composed of phosphorene (BP) in black phosphorus phase and GeS monolayer are systematically explored. The results show that the carriers are not separated for both lattice-match and lattice-mismatch heterostructures. For the lattice-match heterostructure, it is found that changing monolayer of GeS to bilayer can increase the energy difference of valence band offsets between GeS and BP, thus realizing electron-hole separation. For the lattice-mismatch heterostructure, altering the layer distance can transform the heterostructure into a typical type I alignment, but applying the electric field or doping with 2, 3, 5, 6 tetrafluoro-7, 7, 8, 8-tetracyanoquinodimethane (F4TCNQ) can make it display a perfect desirable type-II alignment, where holes migration and electrons transfer are revealed to account respectively for the phenomenon of carrier separation. It is believed that the work would greatly enlarge the potential application of the BP-based heterostructures in photoelectronics and further stimulate the investigation enthusiasms on other fashionable heterostructures and even unassuming heterostructures in which the charming electronic properties can be modulated to emerge by various general methods. PMID- 29323458 TI - Metal-Organic Framework Encapsulation for the Preservation and Photothermal Enhancement of Enzyme Activity. AB - Interfacing biomolecules with functional materials is a key strategy toward achieving externally-triggered biological function. The rational integration of functional proteins, such as enzymes, with plasmonic nanostructures that exhibit unique optical properties such as photothermal effect provides a means to externally control the enzyme activity. However, due to the labile nature of enzymes, the photothermal effect of plasmonic nanostructures is mostly utilized for the enhancement of the biocatalytic activity of thermophilic enzymes. In order to extend and utilize the photothermal effect to a broader class of enzymes, a means to stabilize the immobilized active protein is essential. Inspired by biomineralization for the encapsulation of soft tissue within protective exteriors in nature, metal-organic framework is utilized to stabilize the enzyme. This strategy provides an effective route to enhance and externally modulate the biocatalytic activity of enzymes bound to functional nanostructures over a broad range of operating environments that are otherwise hostile to the biomolecules. PMID- 29323457 TI - Impact of subchronic exposure to triclosan and/or fluoride on estrogenic activity in immature female rats: The expression pattern of calbindin-D9k and estrogen receptor alpha genes. AB - This study explored the influence of triclosan (TCS) in the absence and presence of sodium fluoride (NaF) on estrogenic activity and thyroid function of adolescent female rats. The results indicated that the individual exposure to TCS evoked a significant decline in T3 and T4 but the levels of estradiol, FSH, and LH were significantly elevated beside marked up regulation of calbindin-D9k and estrogen alpha mRNA expression. On the other hand, the single exposure to NaF causes insignificant changes in thyroid hormones, but evoked a trend toward an increase in both estradiol and LH levels. No significant differences in the TSH level were recorded among the experimental groups. The joint exposure to TCS and NaF induced a significant improvement in thyroid and reproductive hormone levels. Overall, these findings revealed that exposure to TCS resulted in significant endocrine and reproductive alterations in immature female rats, while TCS + NaF coexposure resulted in lessening most effects. PMID- 29323459 TI - Reliability and safety of transnasal compared to conventional endoscopy for detecting oesophageal varices in cirrhotic patients. AB - BACKGROUND & AIMS: Unsedated transnasal endoscopy may be used for detecting oesophageal varices. However, few studies evaluated feasibility and accuracy of this technique. We aimed to evaluate accuracy, interobserver agreement and safety of the transnasal ultrathin compared to conventional endoscopy in patients with cirrhosis. METHODS: This cross-sectional study included consecutive patients referred for screening or surveillance of oesophageal varices. Patients underwent unsedated transnasal and sedated conventional endoscopies at the same day, which were recorded in a digital video file and randomly analysed by two double-blinded endoscopists. High-risk varices were defined by the presence of large calibre or red wale marks. Accuracy, interobserver agreement and safety of transnasal were compared to conventional endoscopy. RESULTS: One hundred and thirty-three cirrhotic patients (48% male, aged of 60 +/- 5, 34% Child-Pugh B/C and 71% of cases for variceal screening) were included in the study. The prevalence of oesophageal varices and high-risk oesophageal varices were 59% (n = 79) and 29% (n = 39) respectively. For the presence of oesophageal varices, transnasal GIE yielded sensitivity of 94% [95% Confidence Interval, CI 88-99], specificity of 89% [81-97] as well as positive and negative predictive value of 93% and 91% respectively. A satisfactory interobserver agreement was observed for the presence of oesophageal varices (kappa = 0.89) and high-risk varices (kappa = 0.65). No serious adverse events were recorded; transnasal GIE was safe and significantly associated with lower rates of hypoxaemia (P < .0001) and hypotension (P < .0001) compared to conventional endoscopy. CONCLUSIONS: Unsedated transnasal endoscopy was safe and had an excellent accuracy and high interobserver agreement for detecting oesophageal varices and for identifying high-risk varices in cirrhotic patients. PMID- 29323460 TI - A New Fluorogenic Probe for the Detection of endo-beta-N-Acetylglucosaminidase. AB - We developed a fluorescence-quenching-based assay system to determine the hydrolysis activity of endo-beta-N-acetylglucosaminidases (ENGases). The pentasaccharide derivative 1 was labeled with an N-methylanthraniloyl group as a reporter dye at the non-reducing end and with a 2,4-dinitrophenyl group as a quencher molecule at the reducing end. This derivative is hydrolyzed by ENGase, resulting in an increase in fluorescence intensity. Thus, the fluorescence signal is directly proportional to the amount of the tetrasaccharide derivative, hence allowing ENGase activity to be evaluated easily and quantitatively. Using this system, we succeeded in measuring the hydrolysis activities of ENGases and thus the inhibitory activities of known inhibitors. We confirmed that this assay system is suitable for high-throughput screening for potential inhibitors of human ENGase that might serve as therapeutic agents for the treatment of N glycanase 1 (NGLY1) deficiency. PMID- 29323462 TI - Letter to 'Repair of damaged ligaments with tissue fixation system minisling is sufficient to cure major prolapse in all three compartments: 5-year data'. PMID- 29323463 TI - Ultrathin Bismuth Nanosheets as a Highly Efficient CO2 Reduction Electrocatalyst. AB - Electrochemical reduction of CO2 to value-added products is an important and challenging reaction for sustainable energy study. Herein, bismuth nanosheets with thickness of around 10 nm were prepared through the electrochemical reduction of Bi3+ . Ultrathin Bi nanosheets with numerous low-coordination sites can efficiently reduce CO2 to formate in aqueous solution. Within the potential range of -0.9 to -1.2 V vs. reversible hydrogen electrode (RHE), the faradaic efficiency of formate is over 90 %, outperforming many Bi catalysts. At -0.7 V, the Bi nanosheets exhibit much higher current for formate generation than that of bulk Bi, attributed to a high surface area and also modified intrinsic electronic properties brought about by the ultrathin structure. DFT calculations demonstrate that Bi nanosheets have much higher density of states at the Fermi level compared to bulk Bi, favoring improved CO2 reduction on Bi nanosheets. At -1.0 V, Bi nanosheets exhibit high selectivity for formate and excellent stability during 5 h of electrolysis. PMID- 29323461 TI - N-Benzyl Substitution of Polyhydroxypyrrolidines: The Way to Selective Inhibitors of Golgi alpha-Mannosidase II. AB - Inhibition of the biosynthesis of complex N-glycans in the Golgi apparatus influences progress of tumor growth and metastasis. Golgi alpha-mannosidase II (GMII) has become a therapeutic target for drugs with anticancer activities. One critical task for successful application of GMII drugs in medical treatments is to decrease their unwanted co-inhibition of lysosomal alpha-mannosidase (LMan), a weakness of all known potent GMII inhibitors. A series of novel N-substituted polyhydroxypyrrolidines was synthesized and tested with modeled GH38 alpha mannosidases from Drosophila melanogaster (GMIIb and LManII). The most potent structures inhibited GMIIb (Ki =50-76 MUm, as determined by enzyme assays) with a significant selectivity index of IC50 (LManII)/IC50 (GMIIb) >100. These compounds also showed inhibitory activities in in vitro assays with cancer cell lines (leukemia, IC50 =92-200 MUm) and low cytotoxic activities in normal fibroblast cell lines (IC50 >200 MUm). In addition, they did not show any significant inhibitory activity toward GH47 Aspergillus saitoialpha1,2-mannosidase. An appropriate stereo configuration of hydroxymethyl and benzyl functional groups on the pyrrolidine ring of the inhibitor may lead to an inhibitor with the required selectivity for the active site of a target alpha-mannosidase. PMID- 29323464 TI - Light-Driven Shape-Memory Porous Films with Precisely Controlled Dimensions. AB - Shape-memory polymers (SMPs) are an intriguing class of smart materials possessing reversible shape change and recovery capabilities. Effective routes to shape-memory porous films (SMPFs) are few and limited in scope owing to the difficulty in manipulating the shape change of pores by conventional methods. Herein we report an unconventional strategy for crafting light-driven SMPFs by judiciously constructing highly ordered porous films via a facile "breath figure" approach, followed by sequential vapor crosslinking and nondestructive directional light manipulation. Micropores can thus be transformed into other shapes including rectangle, rhombus and size-reduced micropores at room temperature. The transformed micropores can be reverted to their original shapes by either thermal annealing or UV irradiation. As such, this strategy expands the rich diversity of SMPs accessible. PMID- 29323465 TI - Multiplexed Digital mRNA Expression Analysis Profiles System-Wide Changes in mRNA Abundance and Responsiveness of UPR-Specific Gene Expression Changes During Batch Culture of Recombinant Chinese Hamster Ovary Cells. AB - The unfolded protein response (UPR) signaling pathway is viewed as critical for setting the effectiveness of recombinant protein expression in CHO cells. In this study, Nanostring nCounter technology is used to study expression of a group of genes associated with cellular processes linked to UPR activation under ER stress and the changing environment of a batch culture. Time course induction of ER stress, using tunicamycin (TM), shows a group of genes such as Chop, Trb3, Sqstm1, Grp78, and Herpud1 respond rapidly to TM inhibition of N-glycosylation, while others such as Atf5, Odz4, and Birc5 exhibits a delayed response. In batch culture, expression of "classical" UPR markers only increases when cells enter decline phase. In addition to providing a detailed analysis of the expression of process-relevant UPR markers during batch culture and in response to imposed chemical stress, we also highlighted six genes (Herpud1, Odz4, Sqstm1, Trb3, Syvn1, and Birc5) associated with the perception of ER stress responses in recombinant CHO cells. Herpud1 (involved in ER-associated degradation) exhibits a rapid (primary) response to stress and its relationship (and that of the other five genes) to the overall cellular UPR may identify novel targets to modulate recombinant protein production in CHO cells. PMID- 29323466 TI - Design and Synthesis of A-Ring Simplified Pyripyropene A Analogues as Potent and Selective Synthetic SOAT2 Inhibitors. AB - Currently, pyripyropene A, which is isolated from the culture broth of Aspergillus fumigatus FO-1289, is the only compound known to strongly and selectively inhibit the isozyme sterol O-acyltransferase 2 (SOAT2). To aid in the development of new cholesterol-lowering or anti-atherosclerotic agents, new A ring simplified pyripyropene A analogues have been designed and synthesized based on total synthesis, and the results of structure-activity relationship studies of pyripyropene A. Among the analogues, two A-ring simplified pyripyropene A analogues exhibited equally efficient SOAT2 inhibitory activity to that of natural pyripyropene A. These new analogues are the most potent and selective SOAT2 inhibitors to be used as synthetic compounds and attractive seed compounds for the development of drug for dyslipidemia, including atherosclerotic disease and steatosis. PMID- 29323467 TI - Interactions between Clinically Used Bisphosphonates and Bone Mineral: from Coordination Chemistry to Biomedical Applications and Beyond. AB - Bisphosphonates (BPs) are well-established, widely used first-choice drugs for bone-related diseases and are one of the few classes of molecules for selective bone targeting. Their binding to calcium cations within hydroxyapatite (HA) is a key physicochemical event that takes place on the bone surface. It is the starting point for a cascade of biochemical reactions and cellular effects that lead to the pharmacological activity of BPs. The phenomenon has been known for years, yet its physicochemical nature is still not fully understood. In particular, the adsorption/release processes and structure-function relationships of BPs remain to be clarified. These are elementary, yet crucial factors, which should influence the design and development of new delivery tools or drugs with improved characteristics. This review summarizes the current understanding of the chemical interactions between clinically used BPs and bone mineral, starting from basic Ca2+ coordination chemistry through to interactions with hydroxyapatite, nanocrystalline apatites, and natural bone mineral. PMID- 29323468 TI - In Silico Studies Designed to Select Sesquiterpene Lactones with Potential Antichagasic Activity from an In-House Asteraceae Database. AB - Chagas disease is an endemic disease caused by Trypanosoma cruzi, which affects more than eight million people, mostly in the Americas. A search for new treatments is necessary to control and eliminate this disease. Sesquiterpene lactones (SLs) are an interesting group of secondary metabolites characteristic of the Asteraceae family that have presented a wide range of biological activities. From the ChEMBL database, we selected a diverse set of 4452, 1635, and 1322 structures with tested activity against the three T. cruzi parasitic forms: amastigote, trypomastigote, and epimastigote, respectively, to create random forest (RF) models with an accuracy of greater than 74 % for cross validation and test sets. Afterward, a ligand-based virtual screen of the entire SLs of the Asteraceae database stored in SistematX (1306 structures) was performed. In addition, a structure-based virtual screen was also performed for the same set of SLs using molecular docking. Finally, using an approach combining ligand-based and structure-based virtual screening along with the equations proposed in this study to normalize the probability scores, we verified potentially active compounds and established a possible mechanism of action. PMID- 29323469 TI - Self-Collapsing of Single Molecular Poly-Propylene Oxide (PPO) in a 3D DNA Network. AB - On the basis of DNA self-assembly, a thermal responsive polymer polypropylene oxide (PPO) is evenly inserted into a rigid 3D DNA network for the study of single molecular self-collapsing process. At low temperature, PPO is hydrophilic and dispersed uniformly in the network; when elevating temperature, PPO becomes hydrophobic but can only collapse on itself because of the fixation and separation of DNA rigid network. The process has been characterized by rheological test and Small Angle X-Ray Scattering test. It is also demonstrated that this self-collapsing process is reversible and it is believed that this strategy could provide a new tool to study the nucleation-growing process of block copolymers. PMID- 29323470 TI - Alkylation-, Heating-, and Doping-Induced Emission Enhancement of a Polyaromatic Tube in the Solid State. AB - A polyaromatic tube with a subnanometer-sized cavity was efficiently prepared on a gram-scale through the stereo-controlled cyclotrimerization of a diphenylanthracene derivative as a key step. The facile exterior alkylation of the polyaromatic framework leads to a moderately fluorescent tube (R=-OC10 H21 ; PhiF =20 %) in the solid state. The emission intensity of the solid-state alkyl substituted tube is remarkably enhanced upon heating (up to 1.6 times, PhiF =31 %) as well as doping with fluorescent dyes (up to 4.2 times, PhiF =83 %) through efficient energy transfer. PMID- 29323471 TI - Synthesis of N-Substituted Iminosugar Derivatives and Evaluation of Their Immunosuppressive Activities. AB - It is important to find more effective and safer immunosuppressants, because clinically used immunosuppressive agents have significant side effects. A series of N-substituted iminosugar derivatives were designed and synthesized, and their immunosuppressive effects were evaluated by the CCK-8 assay. The results revealed that iminosugars 10 e and 10 i, that is, (3R,4S)-1-(4 heptyloxylphenylethyl)pyrrolidine-3,4-diol and (3R,4S)-1-[2-(2-chloro-4-(p tolylthio)-phenyl-1-yl)ethyl]pyrrolidine-3,4-diol, respectively, exhibited the strongest inhibitory effects on mouse splenocyte proliferation (IC50 =2.16 and 2.48 MUm, respectively), whereas the iminosugars containing an amide group near the hydrophilic head (compounds 10 j-n) exhibited no inhibitory effects. Further studies revealed that the inhibitory effects on splenocyte proliferation may have come from the suppression of both IFN-gamma and IL-4 cytokines. Our results suggest that synthetic iminosugars, especially compounds 10 e and 10 i, hold potential as immunosuppressive agents. PMID- 29323472 TI - Integrated Analysis of the Transcriptome and Metabolome of Corynebacterium glutamicum during Penicillin-Induced Glutamic Acid Production. AB - Corynebacterium glutamicum is known for its ability to produce glutamic acid and has been utilized for the fermentative production of various amino acids. Glutamic acid production in C. glutamicum is induced by penicillin. In this study, the transcriptome and metabolome of C. glutamicum is analyzed to understand the mechanism of penicillin-induced glutamic acid production. Transcriptomic analysis with DNA microarray revealed that expression of some glycolysis- and TCA cycle-related genes, which include those encoding the enzymes involved in conversion of glucose to 2-oxoglutaric acid, is upregulated after penicillin addition. Meanwhile, expression of some TCA cycle-related genes, encoding the enzymes for conversion of 2-oxoglutaric acid to oxaloacetic acid, and the anaplerotic reactions decreased. In addition, expression of NCgl1221 and odhI, encoding proteins involved in glutamic acid excretion and inhibition of the 2-oxoglutarate dehydrogenase, respectively, is upregulated. Functional category enrichment analysis of genes upregulated and downregulated after penicillin addition revealed that genes for signal transduction systems are enriched among upregulated genes, whereas those for energy production and carbohydrate and amino acid metabolisms are enriched among the downregulated genes. As for the metabolomic analysis using capillary electrophoresis time-of-flight mass spectrometry, the intracellular content of most metabolites of the glycolysis and the TCA cycle decreased dramatically after penicillin addition. Overall, these results indicate that the cellular metabolism and glutamic acid excretion are mainly optimized at the transcription level during penicillin-induced glutamic acid production by C. glutamicum. PMID- 29323473 TI - ZnO Nanorod-Induced Heteroepitaxial Growth of SOD Type Co-Based Zeolitic Imidazolate Framework Membranes for H2 Separation. AB - Up to now, the fabrication of well-intergrown Co-based zeolitic imidazolate framework (ZIF) membranes on porous tubular supports is still a major challenge. We report here a heteroepitaxial growth for preparing well-intergrown Co-based ZIFs (ZIF-67 and ZIF-9) tubular membranes with high performance and excellent thermal stability by employing a thin layer of ZnO nanorods acting as both nucleation centers and anchor sites for the growth of metal-organic framework membranes. The results show that well-intergrown Co-ZIF-67 and Co-ZIF-9 membranes are successfully achieved on the ZnO nanorod-modified porous ceramic tubes. This highly active heteroepitaxial growth may be attributed to the fact that the (Zn,Co) hydroxy double salt intermediate produced in situ from ZnO nanorods acts as heteroseeds and enables the uniform growth of Co-based membranes. The H2/CO2 selectivity of the as-prepared Co-ZIF-9 tubular membrane could reach about 23.8 and the H2/CH4 selectivity of Co-ZIF-67 tubular membrane is as high as 45.4. Moreover, the membranes demonstrate excellent stability because of the ZnO nanorods as linkers between the membrane and substrate. PMID- 29323474 TI - Caspase-1 Specific Light-Up Probe with Aggregation-Induced Emission Characteristics for Inhibitor Screening of Coumarin-Originated Natural Products. AB - Caspase-1 is a key player in pyroptosis and inflammation. Caspase-1 inhibition is found to be beneficial to various diseases. Coumarin-originated natural products have an anti-inflammation function, but their direct inhibition effect to caspase 1 remains unexplored. To evaluate their interactions, the widely used commercial coumarin-based probe (Ac-YVAD-AMC) is not suitable, as the background signal from coumarin-originated natural products could interfere with the screening results. Therefore, fluorescent probes using a large Stokes shift could help solve this problem. In this work, we chose the fluorophore of tetraphenylethylene-thiophene (TPETH) with aggregation-induced emission characteristics and a large Stokes shift of about 200 nm to develop a molecular probe. Bioconjugation between TPETH and hydrophilic peptides (DDYVADC) through a thiol-ene reaction generated a light up probe, C1-P3. The probe has little background signal in aqueous media and exerts a fluorescent turn-on effect in the presence of caspase-1. Moreover, when evaluating the inhibition potency of coumarin-originated natural products, the new probe could generate a true and objective result but not for the commercial probe (Ac-YVAD-AMC), which is evidenced by HPLC analysis. The quick light-up response and accurate screening results make C1-P3 very useful in fundamental study and inhibitior screening toward caspase-1. PMID- 29323475 TI - Broadband Tunable THz Absorption with Singular Graphene Metasurfaces. AB - By exploiting singular spatial modulations of the graphene conductivity, we design a broadband, tunable THz absorber whose efficiency approaches the theoretical upper bound for a wide absorption band with a fractional bandwidth of 185%. Strong field enhancement is exhibited by the modes of this extended structure, which is able to excite a wealth of high-order surface plasmons, enabling deeply subwavelength focusing of incident THz radiation. Previous studies have shown that the conductivity can be modulated at GHz frequencies, which might lead to the development of efficient high-speed broadband switching by an atomically thin layer. PMID- 29323476 TI - Localized Electrothermal Annealing with Nanowatt Power for a Silicon Nanowire Field-Effect Transistor. AB - This work investigates localized electrothermal annealing (ETA) with extremely low power consumption. The proposed method utilizes, for the first time, tunneling-current-induced Joule heat in a p-i-n diode, consisting of p-type, intrinsic, and n-type semiconductors. The consumed power used for dopant control is the lowest value ever reported. A metal-oxide-semiconductor field-effect transistor (MOSFET) composed of a p-i-n silicon nanowire, which is a substructure of a tunneling FET (TFET), was fabricated and utilized as a test platform to examine the annealing behaviors. A more than 2-fold increase in the on-state (ION) current was achieved using the ETA. Simulations are conducted to investigate the location of the hot spot and how its change in heat profile activates the dopants. PMID- 29323477 TI - Synthesis of Structurally Defined Cationic Polythiophenes for DNA Binding and Gene Delivery. AB - Water-soluble conjugated polymers (WCPs) have prospective applications in the field of bioimaging, disease diagnosis, and therapy. However, the use of WCPs with controllability and regioregularity for bioapplications have scarcely been reported. In this work, we synthesized polythiophenes containing ester side chains (P3ET) via Kumada catalyst-transfer polycondensation (KCTP) and confirmed a quasi-"living" chain-growth mechanism. In addition, we obtained cationic regioregular polythiophenes (cPTs) by aminolysis of P3ET with varied chain lengths, and studied DNA binding capability and gene delivery performance. Benefiting from photocontrolled generation of intracellular reactive oxygen species (ROS), the cationic polythiophenes successfully delivered DNA into tumor cells without additional polymer species. PMID- 29323478 TI - Simultaneous Detection of Antibiotic Resistance Genes on Paper-Based Chip Using [Ru(phen)2dppz]2+ Turn-on Fluorescence Probe. AB - Antibiotic resistance, the ability of some bacteria to resist antibiotic drugs, has been a major global health burden due to the extensive use of antibiotic agents. Antibiotic resistance is encoded via particular genes; hence the specific detection of these genes is necessary for diagnosis and treatment of antibiotic resistant cases. Conventional methods for monitoring antibiotic resistance genes require the sample to be transported to a central laboratory for tedious and sophisticated tests, which is grueling and time-consuming. We developed a paper based chip, integrated with loop-mediated isothermal amplification (LAMP) and the "light switch" molecule [Ru(phen)2dppz]2+, to conduct turn-on fluorescent detection of antibiotic resistance genes. In this assay, the amplification reagents can be embedded into test spots of the chip in advance, thus simplifying the detection procedure. [Ru(phen)2dppz]2+ was applied to intercalate into amplicons for product analysis, enabling this assay to be operated in a wash-free format. The paper-based detection device exhibited a limit of detection (LOD) as few as 100 copies for antibiotic resistance genes. Meanwhile, it could detect antibiotic resistance genes from various bacteria. Noticeably, the approach can be applied to other genes besides antibiotic resistance genes by simply changing the LAMP primers. Therefore, this paper-based chip has the potential for point-of care (POC) applications to detect various gene samples, especially in resource limited conditions. PMID- 29323479 TI - Solution-Processed n-Type Graphene Doping for Cathode in Inverted Polymer Light Emitting Diodes. AB - n-Type doping with (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)phenyl) dimethylamine (N-DMBI) reduces a work function (WF) of graphene by ~0.45 eV without significant reduction of optical transmittance. Solution process of N DMBI on graphene provides effective n-type doping effect and air-stability at the same time. Although neutral N-DMBI act as an electron receptor leaving the graphene p-doped, radical N-DMBI acts as an electron donator leaving the graphene n-doped, which is demonstrated by density functional theory. We also verify the suitability of N-DMBI-doped n-type graphene for use as a cathode in inverted polymer light-emitting diodes (PLEDs) by using various analytical methods. Inverted PLEDs using a graphene cathode doped with N-DMBI radical showed dramatically improved device efficiency (~13.8 cd/A) than did inverted PLEDs with pristine graphene (~2.74 cd/A). N-DMBI-doped graphene can provide a practical way to produce graphene cathodes with low WF in various organic optoelectronics. PMID- 29323480 TI - Tailoring the Fluorescence of AIE-Active Metal-Organic Frameworks for Aqueous Sensing of Metal Ions. AB - A hydroxyl-functionalized ligand was designed for the construction of metal organic framework (MOF) materials with the aggregation-induced emission (AIE) feature, in which the fluorescence can be deliberately tailored: quenching the fluorescence to an "off" state by the decoration with heterocyclic auxiliary ligand 4,4'-bypyridine (Bpy) in the framework as a quenching agent and triggering the enhanced fluorescence to an "on" state by removal of Bpy through the metal competitive coordination substitution strategy. Our study shows that the occurrence of exciton migration between the AIE linker and conjugated auxiliary ligand Bpy causes fluorescence quenching. Time-dependent density functional theory was employed to understand the photoinduced electron transfer process and explain the origins of fluorescence quenching. Using this strategy, the prepared MOF material can perform as a fluorescence "off-on" probe for highly sensitive detection of Al3+ in aqueous media. The hydroxyl group plays a crucial role in sensing as it can selectively chelate Al3+, which is directly related to the dissociation of nonfluorescent MOF and consequent activation of the AIE process. PMID- 29323481 TI - New Mechanism of Extractive Electrospray Ionization Mass Spectrometry for Heterogeneous Solid Particles. AB - Real-time in situ mass spectrometry analysis of airborne particles is important in several applications, including exposure studies in ambient air, industrial settings, and assessing impacts on visibility and climate. However, obtaining molecular and 3D structural information is more challenging, especially for heterogeneous solid or semisolid particles. We report a study of extractive electrospray ionization mass spectrometry (EESI-MS) for the analysis of solid particles with an organic coating. The goal is to elucidate how much of the overall particle content is sampled, and determine the sensitivity of this technique to the surface layers. It is shown that, for NaNO3 particles coated with glutaric acid (GA), very little of the solid NaNO3 core is sampled compared to the GA coating, whereas for GA particles coated with malonic acid (MA), significant signals from both the MA coating and the GA core are observed. However, conventional ESI-MS of the same samples collected on a Teflon filter (and then extracted) detects much more core material compared to EESI-MS in both cases. These results show that, for the experimental conditions used here, EESI MS does not sample the entire particle but, instead, is more sensitive to surface layers. Separate experiments on single-component particles of NaNO3, GA, or citric acid show that there must be a kinetics limitation to dissolution that is important in determining EESI-MS sensitivity. We propose a new mechanism of EESI solvent droplet interaction with solid particles that is consistent with the experimental observations. In conjunction with previous EESI-MS studies of organic particles, these results suggest that EESI does not necessarily sample the entire particle when solid, and that not only solubility but also surface energies and the kinetics of dissolution play an important role. PMID- 29323482 TI - A Fluorine-free Slippery Surface with Hot Water Repellency and Improved Stability against Boiling. AB - Inspired by natural living things such as lotus leaves and pitcher plants, researchers have developed many excellent antifouling coatings. In particular, hot-water-repellent surfaces have received much attention in recent years because of their wide range of applications. However, coatings with stability against boiling in hot water have not been achieved yet. Long-chain perfluorinated materials, which are often used for liquid-repellent coatings owing to their low surface energy, hinder the potential application of antifouling coatings in food containers. Herein, we design a fluorine-free slippery surface that immobilizes a biocompatible lubricant layer on a phenyl-group-modified smooth solid surface through OH-pi interactions. The smooth base layer was fabricated by modification of phenyltriethoxysilane through a sol-gel method. The pi-electrons of the phenyl groups interact with the carboxyl group of the oleic acid used as a lubricant, which facilitates immobilization on the base layer. Water droplets slid off the surface in the temperature range from 20 to 80 degrees C at very low sliding angles (<2 degrees ). Furthermore, we increased the pi-electron density in the base layer to strengthen the OH-pi interactions, which improved long-term boiling stability under hot water. We believe that this surface will be applied in fields in which the practical use of antifouling coatings is desirable, such as food containers, drink cans, and glassware. PMID- 29323483 TI - Correction to Synthesis of Potent and Selective Inhibitors of Aldo-Keto Reductase 1B10 and Their Efficacy against Proliferation, Metastasis, and Cisplatin Resistance of Lung Cancer Cells. PMID- 29323484 TI - Quaternary Layered Semiconductor Ba2Cr4GeSe10: Synthesis, Crystal Structure, and Thermoelectric Properties. AB - A quaternary narrow-band-gap semiconductor, Ba2Cr4GeSe10, has been discovered by solid-state reaction. It features a new structure type and crystallizes in the triclinic space group P1 (No. 2). The featured 2D anionic layers are constructed by condensed CrSe6 octahedra that are stacking along the c axis, with dispersed GeSe4 tetrahedra and located Ba2+ cations forming these layers. The energy-band structure shows a clear separation between the region of electronic conduction and the zone of electronic insulation. Significantly, an undoped Ba2Cr4GeSe10 sample shows a desirable low thermal conductivity kappaT (0.51-0.87 W/m.K) and a high Seebeck coefficient S (351-404 MUV/K) and reaches a ZT ~ 0.08 at 773 K. PMID- 29323485 TI - Spark Plasma Sintering (SPS)-Assisted Synthesis and Thermoelectric Characterization of Magneli Phase V6O11. AB - The Magneli phase V6O11 was synthesized in gram amounts from a powder mixture of V6O11/V7O13 and vanadium metal, using the spark plasma sintering (SPS) technique. Its structure was determined with synchrotron X-ray powder diffraction data from a phase-pure sample synthesized by conventional solid-state synthesis. A special feature of Magneli-type oxides is a combination of crystallographic shear and intrinsic disorder that leads to relatively low lattice thermal conductivities. SPS prepared V6O11 has a relatively low thermal conductivity of kappa = 2.72 +/- 0.06 W (m K)-1 while being a n-type conductor with an electrical conductivity of sigma = 0.039 +/- 0.005 (MUOmega m)-1, a Seebeck coefficient of alpha = -(35 +/- 2) MUV K-1, which leads to a power factor of PF = 4.9 +/- 0.8 * 10-5W (m K2)-1 at ~600 K. Advances in the application of Magneli phases are mostly hindered by synthetic and processing challenges, especially when metastable and nanostructured materials such as V6O11 are involved. This study gives insight into the complications of SPS-assisted synthesis of complex oxide materials, provides new information about the thermal and electrical properties of vanadium oxides at high temperatures, and supports the concept of reducing the thermal conductivity of materials with structural building blocks such as crystallographic shear (CS) planes. PMID- 29323487 TI - Nanocoating of Hydrophobic Mesoporous Silica around MIL-101Cr for Enhanced Catalytic Activity and Stability. AB - The metal-organic framework (MOF) MIL-101Cr was readily encapsulated by a very thin shell (around 30 nm) of hydrophobic mesoporous silica, which replicates the irregular shape of the MOF nanocrystals. Such a silica shell facilitates the diffusion of hydrophobic reactants with enhancement of the catalytic activity of the MOF and significantly improved catalytic stability of the MOF in the oxidation of indene. PMID- 29323486 TI - A pH-Sensing Optode for Mapping Spatiotemporal Gradients in 3D Paper-Based Cell Cultures. AB - Paper-based cultures are an emerging platform for preparing 3D tissue-like structures. Chemical gradients can be imposed upon these cultures, generating microenvironments similar to those found in poorly vascularized tumors. There is increasing evidence that the tumor microenvironment is responsible for promoting drug resistance and increased invasiveness. Acidosis, or the acidification of the extracellular space, is particularly important in promoting these aggressive cancer phenotypes. To better understand how cells respond to acidosis there is a need for 3D culture platforms that not only model relevant disease states but also contain sensors capable of quantifying small molecules in the extracellular environment. In this work, we describe pH-sensing optodes that are capable of generating high spatial and temporal resolution maps of pH gradients in paper based cultures. This sensor was fabricated by suspending microparticles containing pH-sensitive (fluorescein) and pH-insensitive (diphenylanthracene) dyes in a polyurethane hydrogel, which was then coated onto a transparent film. The pH-sensing films have a fast response time, are reversible, stable in long term culture environments, have minimal photobleaching, and are not cytotoxic. These films have a pKa of 7.61 +/- 0.04 and are sensitive in the pH range corresponding to normal and tumorigenic tissues. With these optodes, we measured the spatiotemporal evolution of pH gradients in paper-based tumor models. PMID- 29323488 TI - Functional Implications of Intracellular Phase Transitions. AB - Intracellular environments are heterogeneous milieus comprised of macromolecules, osmolytes, and a range of assemblies that include membrane-bound organelles and membraneless biomolecular condensates. The latter are nonstoichiometric assemblies of protein and RNA molecules. They represent distinct phases and form via intracellular phase transitions. Here, we present insights from recent studies and provide a perspective on how phase transitions that lead to biomolecular condensates might contribute to cellular functions. PMID- 29323489 TI - Correction to "A Synthetically Tunable System To Control MLCT Excited-State Lifetimes and Spin States in Iron(II) Polypyridines". PMID- 29323490 TI - Activity-Related Microsecond Dynamics Revealed by Temperature-Jump Forster Resonance Energy Transfer Measurements on Thermophilic Alcohol Dehydrogenase. AB - Previous studies of a thermophilic alcohol dehydrogenase (ht-ADH) demonstrated a range of discontinuous transitions at 30 degrees C that include catalysis, kinetic isotope effects, protein hydrogen-deuterium exchange rates, and intrinsic fluorescence properties. Using the Forster resonance energy transfer response from a Trp-NADH donor-acceptor pair in T-jump studies of ht-ADH, we now report microsecond protein motions that can be directly related to active site chemistry. Two distinctive transients are observed: a slow, kinetic process lacking a temperature break, together with a faster transient that is only detectable above 30 degrees C. The latter establishes a link between enzyme activity and microsecond protein motions near the cofactor binding site, in a region distinct from a previously detected protein network that communicates with the substrate binding site. Though evidence of direct dynamical links between microsecond protein motions and active site bond cleavage events is extremely rare, these studies highlight the potential of T-jump measurements to uncover such properties. PMID- 29323493 TI - Luminescent Dinuclear Copper(I) Complexes as Potential Thermally Activated Delayed Fluorescence (TADF) Emitters: A Theoretical Study. AB - The excited state properties of a series of binuclear NHetPHOS-Cu(I) complexes (NHetPHOS) have been investigated by means of density functional theory (DFT) and time-dependent DFT (TD-DFT). It is shown that experimental trends observed in powder, generally explored via S1 and T1 excited state energetics and S1 <=> T1 intersystem crossing (ISC) efficiency, are hardly analyzed on the basis of excited state properties calculated in solution. Indeed, several local minima corresponding to various structural deformations are evident on the lowest excited state potential energy surfaces (PES) when solvent correction is applied, leading to a four-state thermally activated delayed fluorescence (TADF) mechanism. In contrast, preliminary simulations performed in the solid point to the reduction of nuclear flexibility and consequently to a rather simple two state model. PMID- 29323492 TI - Total Synthesis of (+)-Pleuromutilin. AB - An 18-step synthesis of the antibiotic (+)-pleuromutilin is disclosed. The key steps of the synthesis include a highly stereoselective SmI2-mediated cyclization to establish the eight-membered ring and a stereospecific transannular [1,5] hydrogen atom transfer to set the C10 stereocenter. This strategy was also used to prepare (+)-12-epi-pleuromutilin. The chemistry described here will enable efforts to prepare new mutilin antibiotics. PMID- 29323494 TI - Iridium-Catalyzed Hydroarylation of Conjugated Dienes via pi-Allyliridium Intermediates. AB - A hydroxoiridium/cod complex efficiently catalyzed hydroarylation of conjugated dienes with arenes bearing an acidic N-H bond as a directing group, which can form an amidoiridium species as an active intermediate for C-H activation. A pi allyliridium(III) complex was isolated as a key intermediate leading to the addition product. PMID- 29323491 TI - G-Quadruplex Identification in the Genome of Protozoan Parasites Points to Naphthalene Diimide Ligands as New Antiparasitic Agents. AB - G-quadruplexes (G4) are DNA secondary structures that take part in the regulation of gene expression. Putative G4 forming sequences (PQS) have been reported in mammals, yeast, bacteria, and viruses. Here, we present PQS searches on the genomes of T. brucei, L. major, and P. falciparum. We found telomeric sequences and new PQS motifs. Biophysical experiments showed that EBR1, a 29 nucleotide long highly repeated PQS in T. brucei, forms a stable G4 structure. G4 ligands based on carbohydrate conjugated naphthalene diimides (carb-NDIs) that bind G4's including hTel could bind EBR1 with selectivity versus dsDNA. These ligands showed important antiparasitic activity. IC50 values were in the nanomolar range against T. brucei with high selectivity against MRC-5 human cells. Confocal microscopy confirmed these ligands localize in the nucleus and kinetoplast of T. brucei suggesting they can reach their potential G4 targets. Cytotoxicity and zebrafish toxicity studies revealed sugar conjugation reduces intrinsic toxicity of NDIs. PMID- 29323495 TI - Cascade Reaction of Isatins with 1,1-Enediamines: Synthesis of Multisubstituted Quinoline-4-carboxamides. AB - A one-step methodology for the synthesis of multisubstituted quinoline-4 carboxamides was developed by simply refluxing a mixture of isatins 1 and various kinds of 1,1-enediamines 2-4 in a reaction catalyzed by NH2SO3H. As a result, a series of quinolone-4-carboxamides were produced through a novel cascade reaction mechanism. This reaction involved the formation of the quinoline ring accompanied by the formation of an amide bond in one step. Accordingly, this protocol is suitable for combinatorial and parallel syntheses of quinolone-4-carboxamide drugs or natural products. PMID- 29323496 TI - Direct Synthesis of Quinolines via Co(III)-Catalyzed and DMSO-Involved C-H Activation/Cyclization of Anilines with Alkynes. AB - A unique Co(III)-catalyzed and DMSO-involved C-H activation/cyclization of simple, cheap, and easily available anilines with alkynes for direct and highly efficient synthesis of privileged quinolines with exclusive regioselectivity and broad substrate/functional group tolerance and in good to excellent yields, where DMSO was employed as both the solvent and the C1 building block of quinoline products, is reported. Mechanistic experiments revealed that the versatile reaction might employ the 2-vinylbenzenamine species as the active intermediate. PMID- 29323498 TI - Scaling Laws in Directional Spreading of Droplets on Wettability-Confined Diverging Tracks. AB - Spontaneous pumpless transport of droplets on wettability-confined tracks is important for various applications, such as rapid transport and mixing of fluid droplets, enhanced dropwise condensation, biomedical devices, and so forth. Recent studies have shown that on an open surface, a superhydrophilic track of diverging width, laid on a superhydrophobic background, facilitates the transport of water from the narrower end to the wider end at unprecedented rates (up to 40 cm/s) without external actuation. The spreading behavior on such surfaces, however, has only been characterized for water. Keeping in mind that such designs play a key role for a diverse range of applications, such as handling organic liquids and in point-of-care devices, the importance of characterizing the spreading behavior of viscous liquids on such surfaces cannot be overemphasized. In the present work, the spreading behavior on the aforementioned wettability patterned diverging tracks was observed for fluids of different viscosities. Two dimensionless variables were identified, and a comprehensive relationship was obtained. Three distinct temporal regimes of droplet spreading were established: I), a Washburn-type slow spreading, II) a much faster Laplace pressure-driven spreading, and III), a sluggish density-augmented Tanner-type film spreading. The results offer design guidance for tracks that can pumplessly manage fluids of various viscosities and surface tensions. PMID- 29323497 TI - Multifunnel Landscape of the Fold-Switching Protein RfaH-CTD. AB - Proteins such as the transcription factor RfaH can change biological function by switching between distinct three-dimensional folds. RfaH regulates transcription if the C-terminal domain folds into a double helix bundle and promotes translation when this domain assumes a beta-barrel form. This fold-switch has been also observed for the isolated C-terminal domain, dubbed by us as RfaH-C terminal domain (RfaH-CTD), and is studied here with a variant of the replica exchange-with-tunneling approach recently introduced by us. We use the enhanced sampling properties of this technique to map the free-energy landscape of RfaH CTD and to propose a mechanism for the conversion process. PMID- 29323500 TI - Interfacial Layering and Screening Behavior of Glyme-Based Lithium Electrolytes. AB - Understanding of electrical double layers is essential to all electrochemical devices, particularly at high charge carrier concentrations. Using a combined approach (surface force apparatus, zeta potential, infrared spectroscopy), we propose a model for the interfacial structure of triglyme electrolytes on muscovite mica. In contact with the pure triglyme, a brush-like polymeric structure grows on the mica surface. When lithium triflate is present in the triglyme, this structure is suppressed by anion adsorption and an extended double layer is formed. A surprising result of great fundamental significance is that the effective screening length measured by surface force apparatus at considerable lithium triflate concentrations (above 0.2 M) is substantially higher than expected from the Debye-Huckel theory. This suggests a high degree of complex salt association as a novel characteristic feature of salt-containing electrolytes. PMID- 29323499 TI - Nanometer Resolution Elemental Mapping in Graphene-Based TEM Liquid Cells. AB - We demonstrate a new design of graphene liquid cell consisting of a thin lithographically patterned hexagonal boron nitride crystal encapsulated on both sides with graphene windows. The ultrathin window liquid cells produced have precisely controlled volumes and thicknesses and are robust to repeated vacuum cycling. This technology enables exciting new opportunities for liquid cell studies, providing a reliable platform for high resolution transmission electron microscope imaging and spectral mapping. The presence of water was confirmed using electron energy loss spectroscopy (EELS) via the detection of the oxygen K edge and measuring the thickness of full and empty cells. We demonstrate the imaging capabilities of these liquid cells by tracking the dynamic motion and interactions of small metal nanoparticles with diameters of 0.5-5 nm. We further present an order of magnitude improvement in the analytical capabilities compared to previous liquid cell data with 1 nm spatial resolution elemental mapping achievable for liquid encapsulated bimetallic nanoparticles using energy dispersive X-ray spectroscopy (EDXS). PMID- 29323501 TI - The Pivotal Role of Copper in Neurodegeneration: A New Strategy for the Therapy of Neurodegenerative Disorders. AB - Copper is an essential trace element for the human body since it is a cofactor of several enzymes and proteins and plays a pivotal role in several biological functions (e.g., respiration, protection from oxidative damage, iron metabolism, etc.), also including the central nervous system development and functioning (e.g., synthesis of neurotransmitters, myelination, activation of neuropeptides, etc.). Therefore, copper dysmetabolism is associated with different toxic effects, mainly represented by oxidative stress, and it has been reported in many neurodegenerative disorders, such as Wilson's disease, Menkes disease, Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. This paper shows a detailed report of how copper is involved in the pathophysiology of these diseases. Moreover, a hint on novel therapeutic approaches based on restoring copper homeostasis through metal chelators will be pointed out. PMID- 29323502 TI - Regioselective Neighboring-Group-Participated 2,4-Dibromohydration of Conjugated Enynes: Synthesis of 2-(2,4-Dibromobut-2-enoyl)benzoate and Its Applications. AB - A regioselective 2,4-dibromohydration of conjugated enynes is reported for the synthesis of 2-(2,4-dibromobut-2-enoyl)benzoate. In the presence of tetra-n butylammonium bromide and H2O the transformation proceeds smoothly with good reaction efficiency and a broad reaction scope. Mechanism studies indicate that the neighboring ester group participates in the 2,4-dibromohydration, and the oxygen atom of ester is transferred into the C-C triple bond to form the keto carbonyl group in the product. 2-(2,4-Dibromobut-2-enoyl)benzoate is recognized as an important synthon toward phthalazin-1(2H)-one and the natural product Shihunine. PMID- 29323503 TI - Effective coping with supervisor conflict depends on control: Implications for work strains. AB - This study examined the interactive effects of interpersonal conflict at work, coping strategy, and perceived control specific to the conflict on employee work strain using multisource and time-lagged data across two samples. In Sample 1, multisource data was collected from 438 employees as well as data from participant-identified secondary sources (e.g., significant others, best friends). In Sample 2, time-lagged data from 100 full-time employees was collected in a constructive replication. Overall, findings suggested that the success of coping efforts as indicated by lower strains hinges on the combination of the severity of the stressor, perceived control over the stressor, and coping strategy used (problem-focused vs. emotion-focused coping). Results from the current study provide insights for why previous efforts to document the moderating effects of coping have been inconsistent, especially with regards to emotion-focused coping. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29323504 TI - Protective behavioral strategies mediate the relationship between behavioral economic risk factors and alcohol-related problems. AB - Behavioral economic measures of alcohol reward value and future orientation have received support as predictors of alcohol consumption, alcohol-related problems, and response to intervention. Protective behavioral strategies (PBS) have been shown to be a significant mediator between a variety of risk factors and alcohol related problems. The current article examines direct and mediating associations between measures of alcohol reward value (proportionate substance-related activity participation and enjoyment) and future orientation, use of PBS, and alcohol-related problems. Participants were 393 undergraduates (39.2% male, 78.9% Caucasian) who reported at least 2 past-month binge drinking episodes (5 and 4 drinks for men and women, respectively). This study is a secondary analysis of data collected previously as part of a brief intervention study. Alcohol reward value and future orientation were significantly associated with both protective behavioral strategies and alcohol problems. PBS was a significant partial mediator between these variables and alcohol-related problems after controlling for gender, level of alcohol consumption, and sensation seeking. This study provides support for the hypothesis that high levels of reinforcement from alcohol relative to alternatives and low consideration of the future may lead to patterns of dysregulated drinking with few harm-reduction strategies that increase risk for alcohol problems. In addition to directly targeting PBS, brief alcohol interventions for college students should attempt to increase future orientation and substance-free activities. (PsycINFO Database Record PMID- 29323506 TI - Demand characteristics in episodic future thinking: Delay discounting and healthy eating. AB - Steep delay discounting, or rapid devaluation of future outcomes, is one mechanism that can account for the chronic selection of smaller-sooner over larger-later outcomes; that is, impulsive choice. Because steep delay discounting is correlated with maladaptive behavior, researchers have explored methods for reducing discounting. One empirically supported method is episodic future thinking (EFT), or vividly imagining one's future before completing the discounting task. However, EFT procedures may include demand characteristics, which could account for some its beneficial effects. In two experiments, demand characteristics were evaluated by having participants read a description of the interactions between a fictional experimenter and a human subject in a typical EFT study. When subsequently asked to indicate what the fictional experimenter expected the human subject to do after the EFT exercise, participants correctly deduced the experimenter's hypotheses: that EFT would reduce impulsive choice (Experiment 1A) and consumption of junk food (Experiment 1B). Future research should evaluate and control for the possibility that demand characteristics are at least partially responsible for the beneficial effects of EFT. (PsycINFO Database Record PMID- 29323507 TI - The Chains on All My People Are the Chains on Me: Restrictions to Collective Autonomy Undermine the Personal Autonomy and Psychological Well-Being of Group Members. AB - Four studies assessed the potentially detrimental effects that restrictions to collective autonomy (i.e., a group's freedom to determine and practice its own identity) may have for the personal autonomy and psychological well-being of group members. In Study 1, using 3 distinct samples (NSample1a = 123, NSample1b = 129, NSample1c = 370), correlational and cross-cultural evidence indicates that perceived restrictions to the collective autonomy of one's group is directly associated with reduced personal autonomy, and indirectly associated with diminished well-being through personal autonomy. In Study 2 (N = 411), a longitudinal assessment of group members over 3 time-points during a 4-month period found that group members who perceived greater collective autonomy restriction also experienced reduced personal autonomy, and in turn, reduced psychological well-being over time. In Study 3 (N = 255), group members described a time during which their ingroup had (or did not have) its collective autonomy unduly restricted by other groups. Participants who were primed to think that their group lacked collective autonomy reported reduced feelings of personal autonomy, and reduced psychological well-being (compared with those primed to think their group had collective autonomy). In Study 4 (N = 389), collective autonomy was manipulated within the context of an intensive laboratory simulation. Collective autonomy-restricted group members experienced less personal autonomy than those who did not have their collective autonomy restricted. Together these findings suggest that restrictions to a group's collective autonomy may have detrimental consequences for the personal autonomy and psychological well-being of group members. (PsycINFO Database Record PMID- 29323505 TI - Effects of experimental pain induction on alcohol urge, intention to consume alcohol, and alcohol demand. AB - Research suggests one determinant of alcohol consumption may be physical pain, but there is no empirical evidence that pain has a causal effect on drinking. Therefore, the primary aim of this study was to test experimental pain as a determinant of several alcohol consumption proxies: self-reported urge to drink, intention to consume alcohol, and alcohol demand. This study also was designed to test negative affect as a mediator of the effects of pain on alcohol use proxies. We hypothesized that participants randomized to experimental pain induction (vs. no pain) would report greater urge, intention, and alcohol demand, and that these effects would be mediated by increased negative affect. Participants were healthy undergraduates who were moderate-heavy drinkers (N = 61). Experimental pain was induced using a novel capsaicin-heat model intended to approximate key features of clinical pain. Results indicated that participants in the pain condition subsequently endorsed greater urge and intention to drink. Furthermore, these effects were mediated by pain-induced negative affect. We observed no effect of pain on alcohol demand. This is the first study to demonstrate a causal effect of acute pain on urge and intention to drink. Given the close association between alcohol consumption, urge and intention to drink, these findings suggest that pain may influence alcohol consumption, which can have implications for individuals with co-occurring pain and alcohol use disorder (AUD). Specifically, individuals with co-occurring pain and AUD may drink to alleviate pain-related negative affect. Therefore, improving pain-coping skills may enhance pain management abilities, subsequently reducing coping-motivated drinking. (PsycINFO Database Record PMID- 29323508 TI - Past-focused temporal communication overcomes conservatives' resistance to liberal political ideas. AB - Nine studies and a meta-analysis test the role of past-focused temporal communication in reducing conservatives' disagreement with liberal political ideas. We propose that conservatives are more prone to warm, affectionate, and nostalgic feelings for past society. Therefore, they are more likely to support political ideas-including those expressing liberal values-that can be linked to a desirable past state (past focus), rather than a desirable future state (future focus) of society. Study 1 supports our prediction that political conservatives are more nostalgic for the past than liberals. Building on this association, we demonstrate that communicating liberal ideas with a past focus increases conservatives' support for leniency in criminal justice (Studies 2a and 2b), gun control (Study 3), immigration (Study 4), social diversity (Study 5), and social justice (Study 6). Communicating messages with a past focus reduced political disagreement (compared with a future focus) between liberals and conservatives by between 30 and 100% across studies. Studies 5 and 6 identify the mediating role of state and trait nostalgia, respectively. Study 7 shows that the temporal communication effect only occurs under peripheral (and not central) information processing. Study 8 shows that the effect is asymmetric; a future focus did not increase liberals' support for conservative ideas. A mixed-effects meta-analysis across all studies confirms that appealing to conservatives' nostalgia with a past-focused temporal focus increases support for liberal political messages (Study 9). A large portion of the political disagreement between conservatives and liberals appears to be disagreement over style, and not content of political issues. (PsycINFO Database Record PMID- 29323509 TI - Five Factor Model personality disorder scales: An introduction to a special section on assessment of maladaptive variants of the five factor model. AB - The Five-Factor Model (FFM) is a dimensional model of general personality structure, consisting of the domains of neuroticism (or emotional instability), extraversion versus introversion, openness (or unconventionality), agreeableness versus antagonism, and conscientiousness (or constraint). The FFM is arguably the most commonly researched dimensional model of general personality structure. However, a notable limitation of existing measures of the FFM has been a lack of coverage of its maladaptive variants. A series of self-report inventories has been developed to assess for the maladaptive personality traits that define Diagnostic and Statistical Manual of Mental Disorders (fifth edition; DSM-5) Section II personality disorders (American Psychiatric Association [APA], 2013) from the perspective of the FFM. In this paper, we provide an introduction to this Special Section, presenting the rationale and empirical support for these measures and placing them in the historical context of the recent revision to the APA diagnostic manual. This introduction is followed by 5 papers that provide further empirical support for these measures and address current issues within the personality assessment literature. (PsycINFO Database Record PMID- 29323510 TI - Consensual lay profiles of narcissism and their connection to the Five-Factor Narcissism Inventory. AB - Although there is evidence that experts agree on the traits that characterize narcissism, this agreement may be due, in part, to the influence of the operationalizations based on the American Psychiatric Association's series of Diagnostic and Statistical Manuals of Mental Disorders (American Psychiatric Association [APA], 1980, 1994, 2013). Because these trait descriptions are important in shaping conceptualizations and serving as empirical criteria for construct validation, we explored their generalizability. In Study 1, we collected lay ratings (N = 1,792) of prototypical cases of narcissism across 15 different categories (e.g., gender, age, occupational status) on the 30 traits of the five-factor model (FFM). There was good agreement within and across rating categories and the trait profiles were quite similar to existing ratings made by academicians and clinicians. In Study 2 (N = 603), we examined the degree to which various scores from the Five-Factor Narcissism Inventory-Short Form (FFNI SF; Sherman et al., 2015) provided empirical matches to these FFM profiles (mean lay ratings from Study 1; existing expert-based and meta-analytically derived profiles). In general, scores from the FFNI-SF grandiose scale, as well as the empirically derived FFNI-SF Antagonism and Agentic Extraversion components yielded FFM profiles closely aligned to the various consensus profiles. These results are generally consistent with a burgeoning literature that suggests that the FFNI/FFNI-SF is a promising tool for the study of narcissism given its comprehensiveness, flexibility, and ties to the predominant model of personality. (PsycINFO Database Record PMID- 29323511 TI - Representing schizotypal thinking with dimensional traits: A case for the Five Factor Schizotypal Inventory. AB - Building on support for the five-factor model (FFM) of personality disorder, the Five Factor Schizotypal Inventory (FFSI) was developed to assess maladaptive traits relevant to schizotypal personality disorder. While the development of the FFSI supports a continuity between schizotypal thinking and perception (STAP) and the FFM domain of Openness to Experience, other studies show inconsistent findings concerning the strength of this relationship. The current study evaluates these relationships by investigating specific components of a short form of the FFSI (e.g., the FFSI-SF) and 2 other measures of maladaptive traits with the lower order components within commonly employed measures of Openness to Experience. Nomological network similarities were evaluated for the relation of these scales with a series of conceptually relevant variables including intelligence, creativity, and positive schizotypy in a sample of 403 undergraduates, including 102 that were prescreened for elevated symptoms of schizotypal personality disorder (PD). These analyses revealed strong relations across the 3 measures of traits relevant to STAP, supporting the validity of the FFSI-SF. Most notably, 2 specific scales-Multidimensional Personality Questionnaire (MPQ) Absorption and Openness to Fantasy appeared to best capture the core variance across these measures. Furthermore, a nuanced pattern of relations suggested that specific components of STAP (e.g., oddity and fantasy proneness) matched closely with components of Openness to Experience. The results provide additional support for view that schizotypal thinking can be well captured by personality dimensions that run continuously across normal and pathological levels. (PsycINFO Database Record PMID- 29323512 TI - Informant assessment: The Informant Five-Factor Narcissism Inventory. AB - A series of self-report measures of personality disorder from the perspective of the five-factor model (FFM) have been published; however, no informant-report versions have been developed. An informant version of the Five Factor Narcissism Inventory (FFNI) is particularly apt, given the degree of distortion in self description inherent to narcissism. The present study provides initial validation for the Informant Five-Factor Narcissism Inventory (IFFNI). In Study 1, informant reports from friends, romantic partners, parents, and other family members were compared with self-reports provided by undergraduate college students on the IFFNI, FFM personality, and social dysfunction. Self-other agreement for IFFNI Grandiose (G) was higher than what has been found with other narcissism measures. No self-informant convergence, though, was found for IFFNI Vulnerable (V). From the informant view, IFFNI-G and V narcissism were associated with social dysfunction, whereas from the self-view only FFNI-V was associated with social dysfunction. In Study 2, grandiose and vulnerable narcissists, identified by participants recruited from MTurk, were described in terms of the IFFNI, FFM, and Pathological Narcissism Inventory (PNI). Results indicated that the IFFNI discriminated well between G and V narcissism for all but a few scales. The exceptions may reflect vulnerable narcissistic traits within grandiose narcissists. In comparison, the PNI obtained a very similar informant profile for the G and V narcissists. In sum, the results of the current study suggest value in having an informant-based measure of narcissism. (PsycINFO Database Record PMID- 29323513 TI - The Five Factor Borderline Inventory: Behavioral outcomes across time. AB - The Five-Factor Borderline Inventory Short Form (FFBI-SF) is a 48-item dimensional measure of borderline personality disorder (BPD) that was developed from the Five-factor model (FFM). Previous research has examined the relationships of the FFBI-SF to the FFM and BPD. The purpose of the current study was to investigate the relationship of FFBI-SF scales with behavioral outcomes, such as self-injury, physical fights, panic symptoms, promiscuous sex, theft, attempted suicide, reckless driving, and binge eating. A potential advantage of the FFBI-SF, relative to other measures of BPD, is the provision of subscales, which provides a more precise and differentiated assessment. In the current study, the predictive validity of the FFBI-SF in relation to various impulsive behaviors was investigated across a 2-month time period. Additional comparisons were also made with respect to a more traditional measure of borderline personality disorder and an assessment of the normal range of the FFM. Undergraduate students in psychology courses (T1 = 938, T2 = 284, T3 = 163) and workers from Amazon Mechanical Turk (T1 = 215, T2 = 167, T3 = 157) were administered personality measures and a measure of impulsive behaviors across 3 time points. The results are discussed with respect to the comparative validity of the FFBI-SF, relative to traditional measures of borderline personality disorder and the FFM. Overall, the study provided evidence that the FFBI-SF is able to predict specific maladaptive behaviors over time and therefore may be useful in clinical and research settings. (PsycINFO Database Record PMID- 29323514 TI - FFMPD scales: Comparisons with the FFM, PID-5, and CAT-PD-SF. AB - A series of 8 Five Factor Model Personality Disorder (FFMPD) scales have been developed to assess, from the perspective of the Five Factor Model (FFM), the maladaptive traits included within DSM-5 Section II personality disorders. An extensive body of FFMPD research has accumulated. However, for the most part, each study has been confined to the scales within 1 particular FFMPD Inventory. The current study considered 36 FFMPD scales, at least 1 from each of the 8 FFMPD inventories, including 8 scales considered to be from neuroticism, 8 from extraversion, 5 from openness, 8 from agreeableness, and 7 from conscientiousness. Their convergent, discriminant, and structural relationship with the FFM was considered, and compared with the structural relationship with the FFM obtained by the Personality Inventory for DSM-5 (PID-5) and the Computerized Adaptive Test-Personality Disorder-Static Form (CAT-PD-SF). Support for an FFM structure was obtained (albeit with agreeableness defining 1 factor and antagonism a separate factor). Similarities and differences across the FFMPD, PID-5, and CAT-PD-SF scales were highlighted. (PsycINFO Database Record PMID- 29323515 TI - Suboptimal choice, reward-predictive signals, and temporal information. AB - Suboptimal choice refers to preference for an alternative offering a low probability of food (suboptimal alternative) over an alternative offering a higher probability of food (optimal alternative). Numerous studies have found that stimuli signaling probabilistic food play a critical role in the development and maintenance of suboptimal choice. However, there is still much debate about how to characterize how these stimuli influence suboptimal choice. There is substantial evidence that the temporal information conveyed by a food-predictive signal governs its function as both a Pavlovian conditioned stimulus and as an instrumental conditioned reinforcer. Thus, we explore the possibility that food predictive signals influence suboptimal choice via the temporal information they convey. Application of this temporal information-theoretic approach to suboptimal choice provides a formal, quantitative framework that describes how food predictive signals influence suboptimal choice in a manner consistent with related phenomena in Pavlovian conditioning and conditioned reinforcement. Our reanalysis of previous data on suboptimal choice suggests that, generally speaking, preference in the suboptimal choice procedure tracks relative temporal information conveyed by food-predictive signals for the suboptimal and optimal alternatives. The model suggests that suboptimal choice develops when the food predictive signal for the suboptimal alternative conveys more temporal information than that for the optimal alternative. Finally, incorporating a role for competition between temporal information provided by food-predictive signals and relative primary reinforcement rate provides a reasonable account of existing data on suboptimal choice. (PsycINFO Database Record PMID- 29323516 TI - The probability of reinforcement per trial affects posttrial responding and subsequent extinction but not within-trial responding. AB - During magazine approach conditioning, rats do not discriminate between a conditional stimulus (CS) that is consistently reinforced with food and a CS that is occasionally (partially) reinforced, as long as the CSs have the same overall reinforcement rate per second. This implies that rats are indifferent to the probability of reinforcement per trial. However, in the same rats, the per-trial reinforcement rate will affect subsequent extinction-responding extinguishes more rapidly for a CS that was consistently reinforced than for a partially reinforced CS. Here, we trained rats with consistently and partially reinforced CSs that were matched for overall reinforcement rate per second. We measured conditioned responding both during and immediately after the CSs. Differences in the per trial probability of reinforcement did not affect the acquisition of responding during the CS but did affect subsequent extinction of that responding, and also affected the post-CS response rates during conditioning. Indeed, CSs with the same probability of reinforcement per trial evoked the same amount of post-CS responding even when they differed in overall reinforcement rate and thus evoked different amounts of responding during the CS. We conclude that reinforcement rate per second controls rats' acquisition of responding during the CS, but at the same time, rats also learn specifically about the probability of reinforcement per trial. The latter learning affects the rats' expectation of reinforcement as an outcome of the trial, which influences their ability to detect retrospectively that an opportunity for reinforcement was missed, and, in turn, drives extinction. (PsycINFO Database Record PMID- 29323517 TI - Individual differences are more than a gene * environment interaction: The role of learning. AB - Individual differences in behavior are understood generally as arising from an interaction between genes and environment, omitting a crucial component. The literature on animal and human learning suggests the need to posit principles of learning to explain our differences. One of the challenges for the advancement of the field has been to establish how general principles of learning can explain the almost infinite variation in behavior. We present a case that: (a) individual differences in behavior emerge, in part, from principles of learning; (b) associations provide a descriptive mechanism for understanding the contribution of experience to behavior; and (c) learning theories explain dissociable aspects of behavior. We use 4 examples from the field of learning to illustrate the importance of involving psychology, and associative theory in particular, in the analysis of individual differences, these are (a) fear learning; (b) behavior directed to cues for outcomes (i.e., sign- and goal- tracking); (c) stimulus learning related to attention; and (d) human causal learning. (PsycINFO Database Record PMID- 29323518 TI - Variety overcomes the specificity of cue-potentiated feeding in rats. AB - Cue-potentiated feeding (CPF) describes the stimulation of food consumption by cues that have become associated with food. Determining under what Conditions CPF occurs is important to better understand how exposure to food cues contributes to overeating. CPF is typically found to be specific: cues enhance consumption only of the food they have signaled. Further, previous research has focused largely on discrete cues rather than multimodal cues such as a feeding environment. The present experiments paired a "Plus" context with highly palatable food and a "Minus" context with no food or chow in adult female rats. Experiment 1 confirmed that the Plus context enhanced consumption of the paired food (Froot Loops) but not a different food (banana bread). Experiments 2 and 3 tested whether pairing a variety of foods with the Plus context would overcome this specificity. In Experiment 2 the Plus context either contained bland chow (Chow group), 1 (Single group), or 3 palatable foods (Variety group). The test food, Froot Loops, was familiar but never paired with the Plus context. The Variety group exhibited CPF by eating more Froot Loops in the Plus than in the Minus context, while Single and Chow groups ate equivalently in the 2 contexts. Experiment 3 replicated this effect when the Minus context contained chow during training and when a novel food was tested. These findings have important implications for overeating given that modern food environments are typified by variety and that food consumption often occurs outside the home. (PsycINFO Database Record PMID- 29323519 TI - Pigeons in control of their actions: Learning and performance in stop-signal and change-signal tasks. AB - In human participants, 2 paradigms commonly assumed to measure the executive control processes involved in response inhibition are the stop-signal and change signal tasks. There is, however, also considerable evidence that performance in these tasks can be mediated by associative processes. To assess which components of inhibitory response control might be associative, we developed analogues of these tasks for pigeons. We trained pigeons to peck quickly at 1 of 2 keys of different colors to obtain a food reward. On some trials, the rewarded key was replaced (after a varying interval) by a signal of a different color. For some birds, this was a change signal: pecking the signal had no effect, but pecking the usually unrewarded alternative key led to a reward, so the response had to be changed. For other birds, the change in color was a stop signal: pecking the alternative key remained ineffective, but pecking the signal now led to a timeout instead of the usual reward, so responses had to be withheld. Pigeons succeeded in both tasks, but performance declined with increasing signal delay. The details of performance in both tasks were consistent with the independent horse-race model of inhibitory control often applied to studies of human participants. This outcome further suggests that stop-signal tasks of the kind used here might not necessarily be suitable for assessing top-down executive-control processes in humans. (PsycINFO Database Record PMID- 29323520 TI - Spectrum of embitterment manifestations. AB - OBJECTIVE: Embitterment is seen in reaction to injustice, vilification, or humiliation. Similar to anxiety, it is known to everybody, but it can also occur in the context of mental disorders and even become an illness in itself. The goal of the present study is to describe the spectrum of the types, rate, intensity, and clinical context of embitterment manifestations. METHOD: The posttraumatic embitterment disorder (PTED) self-rating scale was used to screen for reactive embitterment in 1,479 psychosomatic inpatients. Of these, 489 patients showed increased scores and were interviewed with a standardized diagnostic interview investigating embitterment and the life events that elicit it. RESULTS: Feelings of embitterment, irrespective of intensity, were known to 86.5% of the sample and associated with impairment in daily life. Four different types of patients could be identified: (a) nonreactive embitterment or embitterment-prone personality (i.e., increased embitterment without reports about specific negative life events), (b) complex embitterment (i.e., increased embitterment in the context of multiple negative life events), (c) PTED in reaction to a single traumatic event, and (d) secondary embitterment (i.e., increased embitterment in the context of other mental disorders). CONCLUSIONS: Embitterment is part of the normal spectrum of emotions, but it is also relevant in mental disorders. Increased embitterment can be part of other mental illnesses, such as personality disorders, but it also constitutes a state of illness in itself in the form of embitterment-prone personality, PTED, or complex PTED. (PsycINFO Database Record PMID- 29323521 TI - Psychological processes in chronic embitterment: The potential contribution of rumination. AB - OBJECTIVE: Chronic embitterment has received considerable attention in terms of its presentation and epidemiology, but there has been relatively little focus on its psychology. The present study aimed to test the hypothesis that embitterment is positively correlated with rumination, and that this effect is influenced by positive beliefs about rumination. METHOD: A convenience sample (N = 79) of staff of a health care facility attending its occupational health service completed questionnaires assessing chronic embitterment, work-related rumination (distinguishing affective rumination and problem solving pondering), positive beliefs about rumination, and depression. RESULTS: Embitterment scores correlated positively with affective rumination and depression. Positive beliefs about rumination correlated positively with problem-solving pondering but not with affective rumination. Regression analysis revealed that affective rumination contributed to embitterment independently of depression. CONCLUSIONS: Previous research has demonstrated that rumination impairs executive functions and problem solving. The association of affective rumination with embitterment may contribute to the explanation for why embitterment becomes chronic and is often difficult to alleviate. However, this association also opens up possibilities of intervention, in light of research evidence of the effectiveness of rumination-focused therapies. (PsycINFO Database Record PMID- 29323522 TI - Demoralization and embitterment. AB - OBJECTIVE: Individuals may experience a wide range of psychological reactions in response to negative life events. Even if events that threaten life have been always played a central role in research, recent studies have outlined that experiences, considered exceptional but part of the human existence (e.g., divorce, unemployment, or chronic illness) may also lead individuals to experience enduring emotional states of suffering. Demoralization has been substantially described as an important condition occurring in response to stressful events, while a recent interest is growing on embitterment as a common reaction. METHOD: By analyzing the most relevant studies (MEDLINE, EMBASE, PsycLit, and Cochrane Library), this article discusses the main features of embitterment and demoralization, summarizing the similarities as well as the differences detectable between the 2 constructs. RESULTS: Some authors have described these phenomena as spectrum or gradients that start with normal human responses until getting to pathological conditions, characterized by prolonged intense psychological distress in relation to stressful events. Both have shown distinct psychopathological features than other stress-related mental disorders and have been recognized as predictors of negative outcomes, such as impairment in work and social functioning, reduction of quality of life, risk for mental and physical disorders, and suicidality. CONCLUSIONS: Demoralization and embitterment are multidimensional phenomena, connected to each other by bridge dimensions and in the meanwhile characterized by distinct features. Accurately exploring these clinical conditions is an ongoing challenge to clinicians and researchers, who are called for improving their recognition and proper therapeutic interventions that can ameliorate patients quality of life. (PsycINFO Database Record PMID- 29323523 TI - Trauma across generations and paths to adaptation and resilience. AB - OBJECTIVE: There is a growing literature on the intergenerational transmission of trauma, representing approaches across psychodynamic, family systems, epidemiological, sociological, and biological levels of analysis. Embitterment has been proposed as a response to severe, but normative, stressful events, different from the life-threatening trauma that precedes posttraumatic stress disorder (PTSD). METHOD: This article reviews the potential applicability of the construct of embitterment to trauma and intergenerational effects through (a) a historical review of the intergenerational transmission of trauma literature, (b) a discussion of embitterment versus PTSD, (c) a brief review of theories of mechanisms of transmission, and (d) a discussion of biological findings and their interpretation. RESULTS: Mechanisms of intergenerational transmission of trauma, which may include psychodynamic processes, vicarious trauma, learning and modeling, parenting and family environment, and biological influences, are reviewed. Survivor coping and resilience, and specifically the presence of PTSD, has emerged as an important moderator of parental trauma effects on the second generation. A table comparing posttraumatic embitterment disorder and PTSD is provided. CONCLUSION: The discussion emphasizes the importance of construing biological findings as flexible adaptations to stressors rather than deterministic indicators of damage, the relevance of context in interpreting such findings, and the role of community-level processes for healing. (PsycINFO Database Record PMID- 29323524 TI - Work disability in soldiers with posttraumatic stress disorder, posttraumatic embitterment disorder, and not-event-related common mental disorders. AB - OBJECTIVE: Posttraumatic mental disorders may occur with different affect qualities. Best known is posttraumatic stress disorder (PTSD), a conditioned anxiety reaction with intrusions. Another event-related mental disorder is posttraumatic embitterment (PTED), characterized by affect of embitterment and thoughts of revenge, occurring after an event deeply hurting basic beliefs. Knowing about associated disability is important for treatment and sociomedical decisions. This is the first study to explore work-disability in patients with PTSD, PTED, and not-event-related common mental disorder (CMD). METHOD: In this observational study, 101 soldiers (85% men, 31 years, 50% experienced expedition abroad) with different mental disorders were investigated concerning common mental disorders (MINI) and accompanying work capacity impairment (Mini-ICF-APP). Interviews were conducted by a state-licensed psychotherapist with expertise in sociomedical description of (work) capacity impairment. Patients with PTSD, PTED, and other CMD were compared concerning their degrees and pattern of work capacity impairment. RESULTS: PTSD patients (n = 23) were more strongly impaired in mobility as compared to patients with other CMD (n = 64) or PTED. Patients with PTED (n = 14) were more impaired in interactional capacities (contacts with others, group integration) as compared to patients with other CMD or PTSD. CONCLUSIONS: PTSD patients need support to improve mobility in (work-relevant) traffic situations. Apart from this, they are not specifically more or less impaired than patients with other CMD. PTED patients should get attention concerning their interactional problems as these may disturb esprit de corps, which is an essential requirement for service in the armed forces. (PsycINFO Database Record PMID- 29323525 TI - Embitterment and bereavement: The Sewol ferry accident example. AB - OBJECTIVE: On Wednesday, April 16, 2014, 261 high school students on a field trip died in the sinking of the Sewol ferry. The bereaved family of the Sewol ferry accident experienced one of the most painful traumatic losses such as the sudden death of one's child through an accident. This article reviewed and discussed embitterment related to traumatic loss through the example of the Sewol ferry accident. METHOD: Embitterment-related issues and problems in coping with the accident that is caused by societal factors were described. In addition, embitterment-related findings of several previous studies based on bereaved families' mental health cohort study were reviewed. RESULTS: Traumatic loss of the human-made ferry accident was accompanied with feelings of being cheated, injustice, incompetence, wrongdoing by a perpetrator, and the destruction of one's belief and value system, causing severe embitterment. Embitterment was related to other mental health problems including depression, anxiety, and complicated grief. CONCLUSION: Social support and positive individual resource including optimism and wisdom can be helpful for recovery from posttraumatic embitterment. The goal of grief is to remember the decedent, understand the changes created by the loss, and determine how to reinvest in life. Embitterment may disturb the process of grief. Without the management of the embitterment, true grief may not be possible. The breakdown of value systems and severe embitterment should get more attention in future research. (PsycINFO Database Record PMID- 29323526 TI - Psychological and neural correlates of embitterment in old age. AB - OBJECTIVE: Posttraumatic embitterment disorder (PTED) comprises a stress-related response to a negative life event that violates the belief system of the individual. Characteristic symptoms involve repeated intrusive thoughts, emotional arousal when reminded of the event, and decreases in well-being. METHOD: Within the scope of the present study, embitterment was treated as a continuous rather than categorical concept, and we investigated its psychological and brain structural correlates in a sample of healthy older adults. RESULTS: We found a negative association between the PTED self-rating score and self-reported well-being, life satisfaction, and future time perspective and a positive association with loneliness, perceived stress, chronic strain, and external control beliefs. We found no significant association between embitterment and brain regions that have been associated with stress exposure and posttraumatic stress disorder (PTSD)-hippocampus and the medial prefrontal cortex. This may emphasize the fundamental difference between PTED and PTSD. In a whole-brain analysis, we found a positive correlation between embitterment and gray matter volume in the precuneus and white matter volume in the bilateral uncinate fasciculus. CONCLUSIONS: The precuneus and uncinate fasciculus are brain regions that have been related to episodic memory retrieval, matching well to the symptoms of intrusive thoughts and an overwhelming preoccupation with the event that caused the PTED. Further longitudinal research is needed to unravel whether these structural correlates represent preconditions or rather the consequence of embitterment. (PsycINFO Database Record PMID- 29323527 TI - PDTRT special section: Methodological issues in personality disorder research. AB - Provides an introduction to the ongoing Special Section of Personality Disorders: Theory, Research, and Treatment. This special section is concerned with methodological issues in personality disorder research. This fourth edition of this series includes two articles which should be excellent resources for future research and manuscripts submitted to this journal. (PsycINFO Database Record PMID- 29323528 TI - Current directions in laboratory studies of personality pathology: Examples from borderline personality disorder, psychopathy, and schizotypy. AB - Much of the earliest research on personality pathology was observational and descriptive in nature, drawing heavily on subjective self-reports, however, the last 20 years have seen a surge of interest in laboratory-based studies. Laboratory research offers a number of benefits for researchers interested in personality disorders and personality pathology including the opportunities to use objective performance-based and behavioral measures, reveal the neuropsychological and biobehavioral processes that may help shape the experience and behavior of individuals with personality disorders, and create experimental designs that allow researchers to systematically explore the effect of context on emotional, behavioral and cognitive responding. Along with these benefits, laboratory research on personality disorders has its share of methodological and interpretive challenges and raise several key questions, including (a) How should we interpret findings that diverge from theory-driven predictions? (b) How do we reconcile discrepant results from subjective and performance-based assessments? and (c) Are these discrepancies due to methodological artifact, a hallmark of the disorder, or cause for theoretical reconsideration? The goal of this article is to review studies aimed at answering a key research question in the domains of borderline personality disorder, psychopathy, and schizotypy. Our review highlights significant progress in laboratory research on personality disorders, and identifies challenges that must be addressed to capitalize on the promise of laboratory methods. It is our hope that future experimental work proceeds with an eye toward theoretical coherence, methodological rigor, ecological validity, and clinical utility. (PsycINFO Database Record PMID- 29323529 TI - Applying causal mediation analysis to personality disorder research. AB - This article is designed to address fundamental issues in the application of causal mediation analysis to research on personality disorders. Causal mediation analysis is used to identify mechanisms of effect by testing variables as putative links between the independent and dependent variables. As such, it would appear to have relevance to personality disorder research. It is argued that proper implementation of causal mediation analysis requires that investigators take several factors into account. These factors are discussed under 5 headings: variable selection, model specification, significance evaluation, effect size estimation, and sensitivity testing. First, care must be taken when selecting the independent, dependent, mediator, and control variables for a mediation analysis. Some variables make better mediators than others and all variables should be based on reasonably reliable indicators. Second, the mediation model needs to be properly specified. This requires that the data for the analysis be prospectively or historically ordered and possess proper causal direction. Third, it is imperative that the significance of the identified pathways be established, preferably with a nonparametric bootstrap resampling approach. Fourth, effect size estimates should be computed or competing pathways compared. Finally, investigators employing the mediation method are advised to perform a sensitivity analysis. Additional topics covered in this article include parallel and serial multiple mediation designs, moderation, and the relationship between mediation and moderation. (PsycINFO Database Record PMID- 29323530 TI - Prevalence and Molecular Characterization of Antimicrobial Resistance in Escherichia coli Isolated from Raw Milk and Raw Milk Cheese in Egypt. AB - The goal of this study was to examine antimicrobial resistance and characterize the implicated genes in 222 isolates of Escherichia coli from 187 samples of raw milk and the two most popular cheeses in Egypt. E. coli isolates were tested for susceptibility to 12 antimicrobials by a disk diffusion method. Among the 222 E. coli isolates, 66 (29.7%) were resistant to one or more antimicrobials, and half of these resistant isolates showed a multidrug resistance phenotype (resistance to at least three different drug classes). The resistance traits were observed to tetracycline (27.5%), ampicillin (18.9%), streptomycin (18.5%), sulfamethoxazole trimethoprim (11.3%), cefotaxime (4.5%), kanamycin (4.1%), ceftazidime (3.6%), chloramphenicol (2.3%), nalidixic acid (1.8%), and ciprofloxacin (1.4%). No resistance to fosfomycin and imipenem was observed. Tetracycline resistance genes tetA, tetB, and tetD were detected in 53 isolates, 9 isolates, and 1 isolate, respectively, but tetC was not detected. Aminoglycoside resistance genes strA, strB, aadA, and aphA1 were detected in 41, 41, 11, and 9 isolates, respectively. Sulfonamide resistance genes sul1, sul2, and sul3 were detected in 7, 25, and 3 isolates, respectively. Of 42 ampicillin-resistant isolates, blaTEM, blaCTX-M, and blaSHV were detected in 40, 9, and 3 isolates, respectively, and 10 (23.8%) ampicillin-resistant isolates were found to produce extended-spectrum beta lactamase. Each bla gene of extended-spectrum beta-lactamase-producing E. coli was further subtyped to be blaCTX-M-15, blaCTX-M-104, blaTEM-1, and blaSHV-12. The class 1 integron was also detected in 28 resistant isolates, and three different patterns were obtained by PCR-restriction fragment length polymorphism. Sequencing analysis of the variable region revealed that four isolates had dfrA12/orfF/aadA2, two had aadA22, and one had dfrA1/aadA1. These data suggest that antimicrobial-resistant E. coli are widely distributed in the milk production and processing environment in Egypt and may play a role in dissemination of antimicrobial resistance to other pathogenic and commensal bacteria. PMID- 29323531 TI - An Efficient Gas Chromatography-Mass Spectrometry Approach for the Simultaneous Analysis of Deoxynivalenol and Its Bacterial Metabolites 3-keto-DON and 3- epi DON. AB - Deoxynivalenol (DON) is one of the major toxic secondary metabolites produced by Fusarium fungi in cereal grains. Among the many promising strategies of DON detoxification are the microbial and enzymatic ones, which transform DON to nontoxic DON metabolites. Thus, proper analytical methods are needed for those DON metabolites. In this study, a robust gas chromatography-mass spectrometry (GC MS) procedure was developed and validated for the simultaneous analysis of DON and two of its bacterial metabolites, 3-keto-DON and 3- epi-DON. The procedure involves a straightforward vacuum drying and derivatization step before the subsequent GC-MS analysis. Following the optimized protocol, DON and these two metabolites were separated on a capillary column within 15 min. The linear ranges for the these compounds were 10 to 2,000 ng mL-1 with correlation coefficients >0.99. For DON, 3- epi-DON, and 3-keto-DON, the limits of detection were 0.8, 3.0, and 0.05 ng mL-1, and the limits of quantification were 2.6, 10.0, and 1.0 ng mL-1, respectively. For all three compounds, the obtained relative standard deviation was 1.2 to 5.5%, and the recovery rates were 89.5 to 103.6%. The developed method was further validated by analyzing DON metabolites resulting from the biotransformation of DON initiated by cell-free lysates of the bacterium Devosia mutans 17-2-E-8. The developed protocol was sensitive, precise, accurate, and robust for the determination of DON, 3- epi-DON, and 3-keto-DON in liquid media and potentially other complex matrices without interference from other compounds. PMID- 29323532 TI - Identification of CDK2 as a novel target in treatment of prostate cancer. AB - AIM: This study aims the potential gene involved in the metastasis of prostate cancer (Pca). METHODS: PubMed GEO datasets (GSE6605 and GSE6606) were downloaded. We used multiple bioinformatics methods to screen differentially expressed genes in Pca. Gene network was built by STRING and visualized by Cytoscape. All of the hub genes were analyzed by cBioPortal. Inhibition of CDK2 including siRNA, inhibitor and cas9-induced CDK2 knockout was followed by an invasion assay. Downstream genes of CDK2 were analyzed by western blot. RESULTS: Sequencing data were analyzed to screen the genes with expression alterations. The top genes were validated in our samples. 11 hub genes were screened out. Among these genes, STAT3 and CDK2 were significantly associated with recurrence. Further study suggested that inhibition of CDK2 reduced invasion of Pca cell lines. The invasion ability was rescued after reintroduction of CDK2. CONCLUSION: These data indicated that CDK2 was a crucial factor in metastasis of Pca and might be a novel therapy target. [Formula: see text]. PMID- 29323533 TI - Comparison of repair characteristics of artificial dermis composite tissue with traditional prefabricated flap. AB - BACKGROUND: We compared the application of artificial dermis composite tissue and the traditional prefabricated flap in a rat model of an exposed bone and tendon injury. METHODS: Sprague Dawley rats were randomly divided into two groups (A and B, n = 40). Group A rats received artificial dermis composite tissue flaps while group B rats received traditional prefabricated flaps. Flap appearance, range of motion, degree of swelling, tissue histology, and imaging were compared between groups at 7, 14, 21, and 28 days. RESULTS: There was no difference in flap appearance, range of motion, and degree of swelling between groups. However, blood perfusion of the artificial dermis composite tissue flap was better than in the traditional prefabricated flap; artificial dermis was also found to be thicker than the traditional prefabricated flap. CONCLUSIONS: The artificial dermis composite tissue flap is an ideal method for repairing exposed bone and tendon, and displays a comparable repair effects and that it may be a better alternative compared with the traditional prefabricated flap. PMID- 29323534 TI - Healthy foods prepared at home: Diet and support as protective strategies during pregnancy for Hispanic women. AB - Birth outcomes tend to be better among Hispanics than among other ethnic groups, even when matched for poverty and education, and foreign-born Latinas compared to their US-born counterparts. These patterns suggest that sociocultural factors exhibited by recent immigrants have the potential to protect birth outcomes against the instability of minority and low socioeconomic status. To discover potential sociocultural factors, a pilot qualitative study was carried out in Tucson, Arizona, with 18 Hispanic mothers. The two most prevalent factors reported were (1) a healthy diet prepared at home from minimally processed ingredients, and (2) constant and comprehensive social support. When comparing responses related to diet by interview language preference, a proxy for acculturation, there was very little difference between participants who interviewed in Spanish and those who interviewed in English. This result may be explained by greater maternal social support and higher education levels among those who interviewed in English. PMID- 29323535 TI - Testing Process Factor Analysis Models Using the Parametric Bootstrap. AB - Process factor analysis (PFA) is a latent variable model for intensive longitudinal data. It combines P-technique factor analysis and time series analysis. The goodness-of-fit test in PFA is currently unavailable. In the paper, we propose a parametric bootstrap method for assessing model fit in PFA. We illustrate the test with an empirical data set in which 22 participants rated their effects everyday over a period of 90 days. We also explore Type I error and power of the parametric bootstrap test with simulated data. PMID- 29323537 TI - Investigational therapies targeting CD37 for the treatment of B-cell lymphoid malignancies. AB - INTRODUCTION: While chemotherapy still remains a cornerstone of oncologic therapy, immunotherapy with monoclonal antibodies has steadily improved the treatment strategy for several hematologic malignancies. New treatment options need to be developed for relapsed and refractory non-Hodgkin lymphoma (NHL) patients. Currently, novel agents targeting specific molecules on the surface of lymphoma cells, such as anti-CD37 antibodies, are under considerable investigation. Here we report on anti-CD37 targeting for the treatment of patients with B-cell NHL. Areas covered: CD37 seems to be the perfect therapeutic target in patients with NHL. The CD37 antigen is abundantly expressed in B-cells, but is absent on normal stem cells and plasma cells. It is hoped that anti-CD37 monoclonal antibodies will increase the efficacy and reduce toxicity in patients with both newly diagnosed and relapsed and refractory disease. Recent clinical trials have shown promising outcomes for these agents, administered both as monotherapy and in combination with standard chemotherapeutics. Expert opinion: The development of new therapeutic options might help to avoid cytotoxic chemotherapy entirely in some clinical settings. This article presents the latest state of the art on the new treatment strategies in NHL patients. It also discusses recently approved agents and available clinical trial data. PMID- 29323536 TI - High Positive End-Expiratory Pressure Renders Spontaneous Effort Noninjurious. AB - RATIONALE: In acute respiratory distress syndrome (ARDS), atelectatic solid-like lung tissue impairs transmission of negative swings in pleural pressure (Ppl) that result from diaphragmatic contraction. The localization of more negative Ppl proportionally increases dependent lung stretch by drawing gas either from other lung regions (e.g., nondependent lung [pendelluft]) or from the ventilator. Lowering the level of spontaneous effort and/or converting solid-like to fluid like lung might render spontaneous effort noninjurious. OBJECTIVES: To determine whether spontaneous effort increases dependent lung injury, and whether such injury would be reduced by recruiting atelectatic solid-like lung with positive end-expiratory pressure (PEEP). METHODS: Established models of severe ARDS (rabbit, pig) were used. Regional histology (rabbit), inflammation (positron emission tomography; pig), regional inspiratory Ppl (intrabronchial balloon manometry), and stretch (electrical impedance tomography; pig) were measured. Respiratory drive was evaluated in 11 patients with ARDS. MEASUREMENTS AND MAIN RESULTS: Although injury during muscle paralysis was predominantly in nondependent and middle lung regions at low (vs. high) PEEP, strong inspiratory effort increased injury (indicated by positron emission tomography and histology) in dependent lung. Stronger effort (vs. muscle paralysis) caused local overstretch and greater tidal recruitment in dependent lung, where more negative Ppl was localized and greater stretch was generated. In contrast, high PEEP minimized lung injury by more uniformly distributing negative Ppl, and lowering the magnitude of spontaneous effort (i.e., deflection in esophageal pressure observed in rabbits, pigs, and patients). CONCLUSIONS: Strong effort increased dependent lung injury, where higher local lung stress and stretch was generated; effort-dependent lung injury was minimized by high PEEP in severe ARDS, which may offset need for paralysis. PMID- 29323539 TI - An Introduction to Kristof's Theorem for Solving Least-Square Optimization Problems Without Calculus. AB - Kristof's Theorem (Kristof, 1970 ) describes a matrix trace inequality that can be used to solve a wide-class of least-square optimization problems without calculus. Considering its generality, it is surprising that Kristof's Theorem is rarely used in statistics and psychometric applications. The underutilization of this method likely stems, in part, from the mathematical complexity of Kristof's ( 1964 , 1970 ) writings. In this article, I describe the underlying logic of Kristof's Theorem in simple terms by reviewing four key mathematical ideas that are used in the theorem's proof. I then show how Kristof's Theorem can be used to provide novel derivations to two cognate models from statistics and psychometrics. This tutorial includes a glossary of technical terms and an online supplement with R (R Core Team, 2017 ) code to perform the calculations described in the text. PMID- 29323538 TI - Clinical characteristics and outcomes of traditional Chinese medicine-induced liver injury: a systematic review. AB - BACKGROUNDS: Traditional Chinese medicine (TCM) is becoming increasingly popular and related adverse events are often ignored or underestimated. AIMS: This systematic review aimed to evaluate the clinical characteristics and outcomes of TCM-induced liver injury (TCM-ILI) and to estimate the proportion of TCM-ILI in all drug-induced liver injuries (DILI). METHODS: China National Knowledge Infrastructure, Wanfang, VIP, PubMed, and Embase databases were searched. Demographic, clinical, and survival data were extracted and pooled. Factors associated with worse outcomes were calculated. For the proportion meta-analyses, the data were pooled by using a random-effects model. RESULTS: Overall, 21,027 articles were retrieved, of which 625 were finally included. There was a predominance of female and older patients. The proportion of liver transplantation was 2.18% (7/321). The mortality was 4.67% (15/321). Male, higher aspartate aminotransferase and direct bilirubin, and lower albumin were significantly associated with an increased risk of death/liver transplantation in TCM-ILI patients. The proportion of TCM-ILI in all DILI was 25.71%. The proportion was gradually increased with year. CONCLUSIONS: Our work summarises current knowledge regarding clinical presentation, disease course, and prognosis of TCM-ILI. TCM can result in hepatotoxicity, even death or necessitate life saving liver transplantation. Governmental regulation of TCM products should be strictly established. PMID- 29323540 TI - Poisoning by non-edible squash: retrospective series of 353 patients from French Poison Control Centers. AB - CONTEXT: Among the numerous varieties of squash that exist, some are edible while other bitter-tasting ones are not fit for human consumption. Cases of confusion seem to be multiplying and are characterized by digestive problems (diarrhea, vomiting, and abdominal pain). METHODS: This is a descriptive retrospective study of cases of exposure reported to French Poison Control Centers between 1 January 2012 and 12 December 2016. RESULTS: 353 patients were included, with 71.7% belonging to collective cases of poisoning. The male to female sex ratio was 0.75 for an average age of 38.2 +/- 23.6 years. The circumstances of exposure were dietary for 337 patients (95.5%). The majority of the squash consumed was purchased at a store (55.8%) but some also came from the garden (25.5%). 204 patients (57.8%) mostly presented with diarrhea, vomiting, abdominal pain, sometimes with the consequent dehydration, hypotension, tachycardia, headaches, or vertigo. There were no deaths or severe (Poisoning Severity Score (PSS) 3) cases, but there were 14 patients (4.0%) of moderate severity, 190 patients (53.8%) of minor severity (PSS 1), and 149 patients (42.2%) without severity (PSS 0) but among which we include the bitter taste of the squash. The average age of PSS 2 patients was significantly (p = .003) older than that of the PSS <2 patients. CONCLUSION: As the first consequential series in Europe, our study shows that exposure to non-edible squash is frequent. Usually benign, poisoning could be the consequence of the irritating effect of certain cucurbits, the molecules responsible for the taste and toxicity of the fruits. In terms of prevention therefore, we recommend disposing of any squash with a bitter taste. PMID- 29323541 TI - Development of a Targeted Next-Generation Sequencing Assay to Detect Diagnostically Relevant Mutations of JAK2, CALR, and MPL in Myeloproliferative Neoplasms. AB - BACKGROUND: The classical Philadelphia chromosome-negative myeloproliferative neoplasms (MPNs), consisting of polycythemia vera, essential thrombocythemia, and primary myelofibrosis, are a heterogeneous group of neoplasms that harbor driver mutations in the JAK2, CALR, and MPL genes. The detection of mutations in these genes has been incorporated into the recent World Health Organization (WHO) diagnostic criteria for MPN. Given a pressing clinical need to screen for mutations in these genes in a routine diagnostic setting, a targeted next generation sequencing (NGS) assay for the detection of MPN-associated mutations located in JAK2 exon 14, JAK2 exon 12, CALR exon 9, and MPL exon 10 was developed to provide a single platform alternative to reflexive, stepwise diagnostic algorithms. METHODS: Polymerase chain reaction (PCR) primers were designed to target mutation hotspots in JAK2 exon 14, JAK2 exon 12, MPL exon 10, and CALR exon 9. Multiplexed PCR conditions were optimized by using qualitative PCR followed by NGS. Diagnostic genomic DNA from 35 MPN patients, known to harbor driver mutations in one of the target genes, was used to validate the assay. RESULTS: One hundred percent concordance was observed between the previously identified mutations and those detected by NGS, with no false positives, nor any known mutations missed (specificity = 100%, CI = 0.96, sensitivity = 100%, CI = 0.89). Improved resolution of mutation sequences was also revealed by NGS analysis. CONCLUSION: Detection of diagnostically relevant driver mutations of MPN is enhanced by employing a targeted multiplex NGS approach. This assay presents a robust solution to classical MPN mutation screening, providing an alternative to time-consuming sequential analyses. PMID- 29323543 TI - Effects of molsidomine on retinal ischemia/reperfusion injury in rabbits. AB - We investigated the effect of molsidomine (MOL) on ischemia/reperfusion (I/R) injury. Rabbits were assigned to four groups: group 1, sham; group 2, I/R; group 3, MOL treatment for 4 days after I/R; group 4, MOL treatment for 1 day before I/R and 3 days after I/R. Retinal I/R was produced by elevating the intraocular pressure to 150 mm Hg for 60 min. Seven days after I/R, the eyes were enucleated. Retinal changes were examined using histochemistry. The levels of malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), glutathione peroxidase (GSH Px) and catalase (CAT) also were measured. We found a significant increase in the thickness of the outer nuclear layer of group 3 compared to the other groups. In groups 3 and 4, caspase-3 stained cells in the ganglion cell layer were decreased compared to group 2. We found a significant increase in caspase-3 stained cells in the inner nuclear layer (INL) of group 2 compared to the other groups. We found a significant increase in caspase-3 stained cells in group 3 compared to group 4 in the INL. The MDA level in group 2 was significantly higher than group 1 and MOL significantly decreased MDA levels in groups 3 and 4. We found that MOL protected the retina from I/R injury by enhancing antioxidative effects and inhibiting apoptosis of retinal cells. PMID- 29323542 TI - The comparative efficacy of brodalumab in patients with moderate-to-severe psoriasis: a systematic literature review and network meta-analysis. AB - PURPOSE: To evaluate the relative efficacy of brodalumab compared with approved biologic therapies and apremilast for moderate-to-severe psoriasis. METHODS: We searched MEDLINE, Embase, and Cochrane for randomized controlled trials reporting induction phase responses. The primary analysis examined the proportion of patients achieving Psoriasis Area Severity Index (PASI) 50, 75, 90, or 100 responses using a random-effects Bayesian multinomial likelihood model with probit link, with and without adjustment for variation in study-level placebo responses. RESULTS: A total of 54 studies were included. Based on PASI 100 response, the most efficacious therapies were brodalumab 210 mg every two weeks (Q2W) and ixekizumab. Brodalumab 210 mg Q2W was significantly more efficacious than adalimumab, apremilast, brodalumab 140 mg Q2W, etanercept, infliximab, secukinumab, and ustekinumab. Results were consistent for PASI 50, 75, and 90 outcomes and all sensitivity analyses. CONCLUSIONS: Our findings are consistent with pivotal trials which indicate that high levels of complete clearance can be achieved with brodalumab. Based on existing evidence, induction-phase efficacy of brodalumab is similar to ixekizumab and superior to other approved therapies, including anti-TNFs, apremilast, secukinumab, and ustekinumab. PMID- 29323544 TI - Transabdominal Ultrasound Detection of Pancreatic Cysts Incidentally Detected at CT, MRI, or Endoscopic Ultrasound. AB - OBJECTIVE: The objective of our study was to evaluate the detection rate of incidental pancreatic cysts on transabdominal ultrasound (TAUS) as well as factors influencing detection rates. MATERIALS AND METHODS: Nine hundred thirty eight patients with 1064 pancreatic cysts who underwent both TAUS and other imaging examinations including CT, MRI, or endoscopic ultrasound (EUS) were enrolled. We reviewed formal reports and assessed the effect of cyst size and location and the effect of the correlative images for cyst detection on TAUS. Statistical analyses were performed using the chi-square test, t test, and Cramer value (V). RESULTS: The overall detection rate of TAUS was 88.3% (940/1064). Cysts detected on TAUS were more often in younger patients and male patients. The detected cysts (median, 13 mm; interquartile range [IQR], 8-18 mm) were significantly larger than the undetected cysts (median, 10 mm; IQR, 6-14 mm) (p < 0.0001). However, waist circumference did not affect the detection rate. The detection rate was significantly improved from 49.2% (289/587) to 86.7% (830/957) when TAUS was performed after correlative imaging (p < 0.001). Although the detection rate for cysts in the entire pancreas was significantly increased with correlative images (p < 0.001), the detection rate for cysts in the uncinate process showed a much greater increase using correlative images (p < 0.001). However, detection of cysts in the tail of the pancreas showed the least improvement using correlative images. The detection rate was significantly improved with correlative images for cysts 25 mm or smaller. CONCLUSION: Because the detection rate of TAUS for pancreatic cysts was significantly improved after CT, MRI, or EUS, TAUS could be a useful surveillance imaging tool for pancreatic cysts incidentally detected on CT, MRI, or EUS. PMID- 29323545 TI - Focal Nodular Hyperplasia After Treatment With Oxaliplatin: A Multiinstitutional Series of Cases Diagnosed at MRI. AB - OBJECTIVE: Benign hepatic lesions may occur after chemotherapy treatment and may mimic metastases at imaging. We describe focal nodular hyperplasia (FNH) lesions diagnosed at MRI that occurred de novo after treatment with oxaliplatin. MATERIALS AND METHODS: This is a multiinstitutional case series. We report 14 adult patients with cancer (eight men and six women) with a history of treatment with oxaliplatin and development of new hepatic lesions diagnosed as FNH at pathologic analysis or MRI or both. Imaging and pathology features of the included lesions, the interval since chemotherapy, and the temporal evolution were reviewed. RESULTS: The mean interval between the completion of oxaliplatin treatment and the identification of new hepatic FNH at imaging was 47.6 months. In seven of 14 (50%) patients, the index lesion was diagnosed at pathologic analysis (biopsy or resection) as FNH. In the remaining seven cases, the diagnosis was based on highly accurate MRI features (e.g., hyper- or isointensity of the lesion on hepatobiliary phase images). Lesion growth or occurrence of new lesions was present in 75% of patients at imaging follow-up. CONCLUSION: FNH lesions can occur de novo after treatment with oxaliplatin. Recognizing the typical MRI appearance of these lesions may avoid unnecessary biopsy or surgery and reduce patients' anxiety. PMID- 29323546 TI - Validation of the 2015 American Thyroid Association Management Guidelines for Thyroid Nodules With Benign Cytologic Findings in the Era of the Bethesda System. AB - OBJECTIVE: The purpose of this study is to investigate follow-up strategies for cytologically benign thyroid nodules according to size and ultrasound (US) pattern according to the 2015 American Thyroid Association (ATA) guidelines in the era of the Bethesda system. MATERIALS AND METHODS: This retrospective study included 1208 patients with 1230 nodules that were cytologically benign at initial fine-needle aspiration performed from June 2012 to December 2014. False negative rates (FNRs) were calculated by considering nodule size and US pattern according to the 2015 ATA guidelines and were compared between nodules with the high-suspicion US pattern and nodules with the high- or intermediate-suspicion US patterns according to size. RESULTS: Twenty-five of the 1230 nodules (2.0%) were malignant. The FNRs were 5.1% (8/158) for nodules with the high-suspicion US pattern and 1.6% (17/1072) for nodules with other US patterns. With regard to nodule size, the FNRs were 3.2% (9/277) for nodules 3 cm or larger and 5.2% (6/115) for nodules 4 cm or larger. The FNRs of nodules with the high-suspicion pattern were not significantly higher than those of nodules with the high- or intermediate-suspicion patterns among nodules 2 cm or larger (2.5% vs 1.9%; p = 0.208), 3 cm or larger (3.4% vs 2.9%; p = 0.498), and 4 cm or larger (5.4% vs 3.8%; p = 0.353). CONCLUSION: Thyroid nodules with initial benign cytologic findings had a low malignancy rate in the era of the Bethesda system, regardless of US pattern and size. Therefore, any immediate diagnostic intervention may be discouraged in cytologically benign nodules. PMID- 29323547 TI - Accuracy of CT Attenuation Measurement for Differentiating Treated Osteoblastic Metastases From Enostoses. AB - OBJECTIVE: The objective of our study was to assess whether the maximum and mean CT attenuations are accurate for differentiating between enostoses and treated sclerotic metastases. MATERIALS AND METHODS: We retrospectively reviewed CT studies of 165 patients (167 lesions) that included 49 patients with 49 benign lesions, 69 patients with 71 sclerotic treated lesions, and 47 patients with 47 untreated lesions, and calculated the mean and maximum CT attenuations of each lesion. ROC curves were used to identify thresholds for differentiating enostoses from treated sclerotic metastases and from untreated sclerotic metastases. RESULTS: The maximum CT attenuation of enostoses (1212.0 HU) was higher from that of untreated (754.7 HU) (p = 9.7 * 10-16) and that of treated (891.7 HU) (p = 9.9 * 10-10) sclerotic metastases. The maximum CT attenuation of treated sclerotic metastases (891.7 HU) was higher than that of untreated sclerotic metastases (754.7 HU) (p = 0.003). Enostoses had higher mean CT attenuation (1123.0 HU) than untreated (602.0 HU) (p < 2.2 * 10-16) and treated (731.7 HU) (p = 9.6 * 10-15) sclerotic metastases. A threshold mean CT attenuation of 885 HU had an accuracy of 91.7% and 81.7% to differentiate enostoses from untreated and treated metastases, respectively, whereas a threshold maximum CT attenuation of 1060.0 HU had an accuracy of 81.3% and 72.5% to differentiate enostoses from untreated and treated metastases. CONCLUSION: The mean and maximum CT attenuations can differentiate between enostoses and sclerotic metastases; however, the accuracy of both metrics decreases after treatment. PMID- 29323548 TI - 18F-Fluorocholine PET Whole-Body MRI in the Staging of High-Risk Prostate Cancer. AB - OBJECTIVE: The purpose of this study was to determine whether integrated 18F fluorocholine (FCH) PET whole-body MRI (PET/WBMRI) depicts lymph node and distant metastases in patients with high-risk prostate cancer more frequently than does conventional staging. SUBJECTS AND METHODS: A prospective study included 58 patients with untreated high-risk prostate cancer. After conventional staging (CT and bone scintigraphy), patients underwent FCH PET/WBMRI (n = 10) or FCH PET/CT and WBMRI (n = 48). Metastatic sites and disease stage were recorded for each modality (conventional imaging, PET, WBMRI, and PET/WBMRI) and compared with a standard of reference (histopathologic examination, imaging, and clinical follow up) and early clinical outcomes. RESULTS: In the detection of metastases, PET had significantly higher sensitivity (72/77 [93.5%]) than conventional imaging (49/77 [63.6%]; p < 0.001) and WBMRI (56/77 [72.7%]; p = 0.002). There was a trend toward improved detection with PET/WBMRI (77/77 [100%]) compared with PET alone (p = 0.059). For correct NM staging, PET and PET/WBMRI performed better than conventional imaging (p = 0.002) and WBMRI (p = 0.008). Twelve of 56 patients (21.4%) had early biochemical failure after radical treatment (median, 7 months; range, 1-20 months). This rate was higher for patients with M1a or M1b disease at PET/WBMRI than for others, but this finding did not reach statistical significance (4/8 [50%] vs 8/48 [16.7%]; p = 0.055). CONCLUSION: In patients with high-risk prostate cancer, FCH PET and FCH PET/WBMRI depict significantly more metastatic lesions than do conventional imaging and WBMRI. Stage determined with PET/WBMRI may correlate with early outcomes. PMID- 29323549 TI - Predicting Parametrial Invasion in Cervical Carcinoma (Stages IB1, IB2, and IIA): Diagnostic Accuracy of T2-Weighted Imaging Combined With DWI at 3 T. AB - OBJECTIVE: The objective of our study was to retrospectively evaluate the efficacy of combined analysis of T2-weighted imaging and DWI in the diagnosis of parametrial invasion (PMI) in cervical carcinoma. MATERIALS AND METHODS: The clinical records of 192 patients with cervical carcinoma who met the study requirements were reviewed for this retrospective study. The signal intensities of suspicious PMI tissue were assessed on T2-weighted images, DW images, and apparent diffusion coefficient maps independently by two experienced radiologists. The radiologist observers predicted the presence of PMI by scoring T2-weighted imaging alone and then by scoring T2-weighted imaging and DWI combined. The results were compared with histopathologic findings. RESULTS: Histopathologic findings revealed PMI in 24 of 192 study subjects. In positively predicting the presence of PMI, T2-weighted imaging and DWI combined scored significantly better than T2-weighted imaging alone, as proven by high sensitivity (T2-weighted imaging alone vs T2-weighted imaging and DWI combined: observer 1, 75.0% vs 83.3% [p = 0.477]; observer 2, 66.7% vs 91.7% [p < 0.05]), high specificity (T2-weighted imaging alone vs T2-weighted imaging and DWI combined: observer 1, 84.5% vs 98.8% [p < 0.001]; observer 2, 85.7% vs 98.8% [p < 0.001]), and high accuracy (T2-weighted imaging alone vs T2-weighted imaging and DWI combined: observer 1, 83.3% vs 96.9% [p < 0.001]; observer 2, 83.3% vs 97.9% [p < 0.001]). The area under the ROC curve was also significantly higher for T2 weighted imaging and DWI combined (observer 1, 0.911; observer 2, 0.952) than for T2-weighted imaging alone (observer 1, 0.798; observer 2, 0.762). Although the interobserver agreement was good for T2-weighted imaging (kappa = 0.695) and excellent for T2-weighted imaging and DWI combined (kappa = 0.753), the improvement failed to achieve statistical significance (p = 0.28). CONCLUSION: Combined analysis of T2-weighted imaging and DWI enhances the accuracy of diagnosing PMI in patients with cervical cancer compared with T2-weighted imaging alone. PMID- 29323550 TI - Assessing the Effect of Weight-Based Protocol Modifications to Lower Dose for CT Guided Hepatic and Renal Tumor Radiofrequency Ablations. AB - OBJECTIVE: This study assessed radiation dose after CT-guided percutaneous radiofrequency ablations (RFAs) of hepatic and renal tumors and the effect of weight-based CT protocol modification for lowering overall dose in these procedures. MATERIALS AND METHODS: CT-guided RFA for renal and hepatic ablations performed from January 1, 2009, through December 31, 2009, were retrospectively reviewed (90 men and 48 women; age, 42-81 years). The radiation dose was recorded during each of the following steps: planning, performing, and postprocedure. Weight-based protocol modification changes in tube voltage and tube current were then applied to renal and hepatic ablations performed subsequently (18 men and 11 women; age, 48-82 years). Image quality, needle localization, lesion detection, ability to detect complications, and overall operator satisfaction were noted for each case (score, 1-5). Dose reduction after modification was then calculated. RESULTS: Retrospective analysis found a mean (+/- SD) overall CT dose index (CTDI) for CT-guided RFA to be 16.5 +/- 2.3 mGy. After protocol modification, the mean CTDI decreased to 6.63 +/- 0.67 mGy, a 59.6% reduction overall; for hepatic ablations, the reduction was 65.96% (p < 0.0001) and the reduction for renal ablations was 38.97% (p = 0.0153). Image quality analysis showed high operator satisfaction (3-5), including adequate needle localization (4-5), lesion visibility (3-5), and high performer confidence (4-5). Higher dose reduction was noted for patients weighing more than 180 lb (82 kg) (p < 0.0001). CONCLUSION: Simple weight-based CT protocol modifications can significantly reduce radiation dose during CT-guided percutaneous ablations in the liver and kidneys without significantly sacrificing image quality. PMID- 29323552 TI - Using the American College of Radiology Dose Index Registry to Evaluate Practice Patterns and Radiation Dose Estimates of Pediatric Body CT. AB - OBJECTIVE: Imaging registries afford opportunities to study large, heterogeneous populations. The purpose of this study was to examine the American College of Radiology CT Dose Index Registry (DIR) for dose-related demographics and metrics of common pediatric body CT examinations. MATERIALS AND METHODS: Single-phase CT examinations of the abdomen and pelvis and chest submitted to the DIR over a 5 year period (July 2011-June 2016) were evaluated (head CT frequency was also collected). CT examinations were stratified into five age groups, and examination frequency was determined across age and sex. Standard dose indexes (volume CT dose index, dose-length product, and size-specific dose estimate) were categorized by body part and age. Contributions to the DIR were also categorized by region and practice type. RESULTS: Over the study period 411,655 single-phase pediatric examinations of the abdomen and pelvis, chest, and head, constituting 5.7% of the total (adult and pediatric) examinations, were submitted to the DIR. Head CT was the most common examination across all age groups. The majority of all scan types were performed for patients in the second decade of life. Dose increased for all scan types as age increased; the dose for abdominopelvic CT was the highest in each age group. Even though the DIR was queried for single-phase examinations only, as many as 32.4% of studies contained multiple irradiation events. When these additional scans were included, the volume CT dose index for each scan type increased. Among the studies in the DIR, 99.8% came from institutions within the United States. Community practices and those that specialize in pediatrics were nearly equally represented. CONCLUSION: The DIR provides valuable information about practice patterns and dose trends for pediatric CT and may assist in establishing diagnostic reference levels in the pediatric population. PMID- 29323553 TI - Revealing the Structural Neural Circuitry of Attention Deficit Hyperactivity Disorder With Diffusion MRI: Implications for Future Diagnosis and Treatment. AB - OBJECTIVE: Rates of attention deficit hyperactivity disorder (ADHD) diagnosis and psychostimulant prescriptions continue to rise, yet there are no clear diagnostic tests or biomarkers for the disorder. The purpose of this article is to highlight the role of diffusion MRI in bolstering a neurobiologic conceptualization of ADHD and how this holds promise for optimizing future diagnosis. CONCLUSION: Diffusion MRI is a powerful neuroimaging tool for noninvasive assessment of the structural neural circuitry underlying brain function and behavior. Though the modality is still in its infancy, diffusion MRI studies are showing neural network disruption in ADHD consistent with findings from other imaging modalities. Given the mounting evidence of brain-behavior correlates in ADHD, it is likely that imaging based biomarkers will one day be incorporated into clinical diagnosis and treatment evaluation. Until then, diffusion MRI findings serve to validate ADHD as a brain-based disorder with immediate public health implications for individuals with ADHD. PMID- 29323551 TI - Gamma Imaging-Guided Minimally Invasive Breast Biopsy: Initial Clinical Experience. AB - OBJECTIVE: The purpose of this study was to evaluate our initial experience with gamma imaging-guided vacuum-assisted breast biopsy in women with abnormal findings. MATERIALS AND METHODS: A retrospective review of patients undergoing breast-specific gamma imaging (BSGI), also known as molecular breast imaging (MBI), between April 2011 and October 2015 found 117 nonpalpable mammographically and sonographically occult lesions for which gamma imaging-guided biopsies were recommended. Biopsy was performed with a 9-gauge vacuum-assisted device with subsequent placement of a titanium biopsy site marker. Medical records and pathologic findings were evaluated. RESULTS: Of the 117 biopsies recommended, 104 were successful and 13 were canceled. Of the 104 performed biopsies, 32 (30.8%) had abnormal pathologic findings. Of those 32 biopsies, nine (28.1%) found invasive cancers, six (18.8%) found ductal carcinoma in situ (DCIS), and 17 (53.1%) found high-risk lesions. Of the 17 high-risk lesions, there were three (17.6%) lobular carcinomas in situ, five (29.4%) atypical ductal hyperplasias, two (11.8%) atypical lobular hyperplasias, one (5.9%) flat epithelial atypia, and six (35.3%) papillomas. Two cases of atypical ductal hyperplasia were upgraded to DCIS at surgery. The overall cancer detection rate for gamma imaging-guided biopsy was 16.3%. In this study, gamma imaging-guided biopsy had a positive predictive value of total successful biopsies of 16.3% for cancer and 30.8% for cancer and high-risk lesions. CONCLUSION: Gamma imaging-guided biopsy is a viable approach to sampling BSGI-MBI-detected lesions without sonographic or mammographic correlate. Our results compare favorably to those reported for MRI guided biopsy. PMID- 29323554 TI - Insights Into Breast Cancer Screening: A Computer Simulation of Two Contemporary Screening Strategies. AB - OBJECTIVE: The debate over the value of screening mammography is rekindled with each new published study or guideline. Central to the discussion are the uncertainties about screening benefits and harms and the criteria used to assess them. Today, the magnitude of benefits for a population is less certain, and the evolving concept of harm has come to encompass false-positives (FPs), unnecessary biopsies, overdiagnosis, and overtreatment. This study uses a Monte Carlo computer simulation to study the balance of benefits and harms of mammographic breast cancer screening for average-risk women. MATERIALS AND METHODS: This investigation compares the American Cancer Society's 2015 mixed annual-biennial guideline with the U.S. Preventive Services Task Force's 2016 fixed biennial guideline. Screening strategies are compared using cost-effectiveness acceptability curves, an economic analysis describing uncertainty in evaluating costs and health outcomes. Strategy preference is examined under changing assumptions of willingness to pay for a quality-adjusted life-year. Additionally, comparative effectiveness analysis is performed using FP screens and unnecessary biopsies per life-year gained. Alternative scenarios are compared assuming a reduced mortality benefit of screening. RESULTS: In general, results using both cost-effectiveness and clinical measures indicate that American Cancer Society's 2015 mixed annual-biennial guideline is preferred. Assuming decreases in the mortality benefit of mammography, no screening may be reasonable. CONCLUSION: The use of a mixed annual-biennial strategy for population screening takes advantage of the nonuniformity of occurrence of mammography benefits and harms over the duration of screening. This approach represents a step toward improving guidelines by exploiting age dependencies at which benefits and harms accrue. PMID- 29323555 TI - Practical Suggestions on How to Move From Peer Review to Peer Learning. AB - OBJECTIVE: The purpose of this article is to outline practical steps that a department can take to transition to a peer learning model. CONCLUSION: The 2015 Institute of Medicine report on improving diagnosis emphasized that organizations and industries that embrace error as an opportunity to learn tend to outperform those that do not. To meet this charge, radiology must transition from a peer review to a peer learning approach. PMID- 29323557 TI - Neuropsychological Assessment of 412 HIV-Infected Individuals in Sao Paulo, Brazil. AB - HIV-associated neurocognitive disorders (HAND) remain frequent even among individuals receiving combined antiretroviral therapy (cART). In addition, HAND may adversely affect the quality of life and adherence to cART. There is scarce epidemiological information about HAND in Latin America. This cross-sectional study recruited HIV-infected patients from a tertiary teaching institution in Sao Paulo, Brazil, between May 2013 and February 2015. The patients were adults with at least 4 years of education and patients with current neurological or psychiatric diseases were excluded. HAND remain frequent even among individuals receiving cART, use of psychoactive substance, or inability to understand the content for neuropsychological evaluation. We used standardized tools to evaluate depression, use of psychoactive substances, and daily life activities, and we performed a comprehensive neuropsychological examination. HAND was classified using the Frascati criteria. Prevalence of HAND was estimated, and an associated variable of symptomatic HAND was identified by logistic regression. Four-hundred twelve HIV-infected patients were included [male: 281 (68%), mean age of 45.3 years]. Most of them [n = 340 (83.7%)] had an undetectable viral load. The prevalence of HAND was 73.6% (n = 303): 210 (50.9%) had asymptomatic neurocognitive involvement (ANI), 67 (16.2%) had mild neurocognitive disorder (MND), and 26 (6.3%) had HIV-associated dementia (HAD). The univariate logistic regression analysis showed that female gender, age older than 50 years, <11 years of schooling, CD4 count below 200 cells/mm3, presence of previous illnesses (e.g., diabetes, hypertension), opportunistic disease history, and a Beck Depression Inventory (BDI) score between 13 and 19 points were factors associated with symptomatic HAND (MND and HAD). However, a BDI score between 13 and 19 points was the single independent variable associated with symptomatic HAND. HAND was highly prevalent in Sao Paulo, Brazil, and ANI was the more frequent category of HAND. However, 22.5% of participants had symptomatic HAND. This finding constitutes a challenge in clinical practice. A BDI score between 13 and 19 points was the single independent variable associated with symptomatic HAND. PMID- 29323556 TI - Modality of Primary HIV Disclosure and Association with Mental Health, Stigma, and Antiretroviral Therapy Adherence in Tanzanian Youth Living with HIV. AB - Disclosing HIV status to children before adolescence is a major challenge facing families and healthcare providers. This study used a mixed methods approach to explore the youth perspective of how youth living with HIV (YLHIV) found out their status and to quantify the association of disclosure modality with mental health, stigma, adherence, and HIV outcomes in adolescence. Youth 11-24 years of age attending adolescent HIV clinic in Moshi, Tanzania were included. Adolescents answered questions, including when and how they found out they had HIV, mental health surveys (nine-item Patient Health Questionnaire, Strengths and Difficulties Questionnaire, and modified University of California Los Angeles trauma screen), modified Berger's stigma scale, and self-reported adherence. HIV 1 RNA and latest CD4 were obtained. In-depth interviews were conducted using a convenience sample. The majority of youth reported that they found out their HIV status on their own (80%). Youth attending the government site were less likely to be purposefully told their HIV status compared with those attending the referral site (p < 0.01). Depressive and emotional/behavioral symptoms, internal stigma, and incomplete adherence were significantly more likely among those who figured out their HIV status on their own as compared with those who were purposefully told. Youth discussed how they figured out their HIV status on their own during in-depth interviews. These findings demonstrated that youth who figured out their HIV status on their own had increased mental health symptoms and worse adherence to antiretroviral therapy (ART). It is imperative to implement disclosure protocols in early childhood to reduce mental health difficulties, internal stigma, and promote ART adherence in YLHIV. PMID- 29323559 TI - Reply to letter to editor regarding: Risk of bacterial vaginosis, Trichomonas vaginalis and Candida albicans infection among new users of combined hormonal contraception compared to levonorgestrel-releasing intrauterine system. PMID- 29323558 TI - Optimizing Delivery of HIV Preexposure Prophylaxis for Women in the United States. AB - Preexposure prophylaxis (PrEP) is a highly effective HIV prevention method; however, it is underutilized among women who are at risk for acquisition of HIV. Women comprise one in five HIV diagnoses in the United States, and significant racial disparities in new HIV diagnoses persist. The rate of new HIV diagnoses among black and African American women in 2015 was 16 times greater than that of white women. These disparities highlight the importance of HIV prevention strategies for women, including the use of PrEP. PrEP is the first highly effective HIV prevention method available to women that is entirely within their control. However, because so few women who may benefit from PrEP are aware of it, few women's healthcare providers offer PrEP to their patients, PrEP has not yet achieved its potential to reduce HIV infections in women. This article describes individual and systemic barriers for women related to the uptake of PrEP services; explains how providers can identify women at risk for HIV; reviews how to provide PrEP to women; and outlines client-centered models for HIV prevention services. Better access to culturally acceptable and affordable medical and social services may offer support to women for consistent and ongoing use of PrEP. This discussion may be used to inform HIV prevention activities for women and guide interventions to decrease racial/ethnic disparities in rates of HIV infection among US women. PMID- 29323560 TI - The prospects for combination therapy with capecitabine in the rapidly evolving treatment landscape of renal cell carcinoma. AB - INTRODUCTION: Although significant advances have been made in the treatment of advanced renal cell carcinoma (RCC), patients still develop resistance to standard therapies and require the administration of subsequent lines of treatment. New therapeutic approaches are thus imperative to improve the prognosis for patients with RCC. Areas covered: Based on the current literature, we summarize the treatment of metastatic RCC, including the use of cytotoxic chemotherapy, in this review article. We also review the existing scientific literature regarding the role of capecitabine in the treatment of RCC. Expert opinion: Currently, targeted therapies including vascular endothelial growth factor (VEGF) and mammalian target of rapamycin (mTOR) inhibitors are widely used in the treatment of metastatic RCC. More recently, the role of immune checkpoint inhibitors has been established in the treatment of advanced RCC. Traditionally, the use of cytotoxic chemotherapy in the treatment of RCC is limited. However, cytotoxic chemotherapy may have benefit in different types of RCC, such as variant histology. Furthermore, new combinations of chemotherapy with immune checkpoint inhibitors may provide new treatment options for our patients. PMID- 29323561 TI - Developing a nursing approach to managing dyspnoea in lung cancer. AB - Dyspnoea, or breathlessness, is a common problem in lung cancer and is frequently difficult to alleviate. Most studies exploring strategies for dyspnoea intervention have focused on pharmacological intervention. The approach described in this article has been developed through an evaluative study of a nursing clinic for lung cancer patients with breathlessness. It used an integrative model of dyspnoea and techniques derived from chronic pulmonary disease rehabilitation. Case examples suggest that this may offer a positive intervention approach in breathlessness management by nurses. PMID- 29323562 TI - The need for an International Journal of Palliative Nursing. AB - Responses to the launch of a new journal may vary from pleasure and satisfaction, to a total lack of interest or even frustration. 'Oh no, not another journal!', someone will exclaim and, in certain circumstances, this may be a reasonable reaction. However, in the case of the International Journal of Palliative Nursing, it certainly is not. For a variety of reasons, I believe its launch is both timely and appropriate. So, why do we need this journal? PMID- 29323563 TI - The challenges of conducting clinical trials in palliative care. AB - Research is a prerequisite for every specialty; palliative care is no exception. Clinical observation and anecdotal evidence are insufficient, and well designed scientific clinical research trials are required to promote advances within the specialty. Certain challenges exist for the researcher. This article will discuss these demands with reference to informed consent, factors which influence accrual (recruitment) and attrition rates (the loss of participants during the course of a study (Polit and Hungler, 1991), prevailing attitudes and clinical research design. PMID- 29323564 TI - Development of palliative care in Norway: an overview. AB - This article looks at the development of palliative care and the hospice movement in Norway during the last 15 years. The development of specialist hospital and community services and the hospice movement in Norway are discussed. These are considered against the background of similar developments elsewhere in Europe and the USA and in the context of research into care of the dying. Key events, such as the formation of the Norwegian Committee on Terminal Care (NCTC) and government directives and their influence are described. PMID- 29323565 TI - Conducting research with the dying: ethical considerations and experience. AB - This article explores the ethical considerations that arose during a qualitative evaluation study of an Australian domiciliary palliative care agency. The research sought to answer the question: 'What is the relationship between palliative care philosophy and that received by dying clients and their primary carer?'. Interviews were conducted with clients, carers and agency staff, which exposed particular issues relating to the protection of vulnerable groups such as the dying. The fact that key aspects of research ethics can only be understood when the context of people's lives and experiences are taken into account is explained. Questions raised during the implementation of the study illustrate the complexity of research ethics and form the basis of the discussion. PMID- 29323566 TI - Comments welcoming the launch of the International Journal of Palliative Nursing. AB - Madam, It was with great delight that I learnt of your new journal. I am sure that other nurses will be just as enthusiastic. Palliative nursing needs a scholarly vehicle to encourage research-based practice and to im prove care. Researchers also need a journal in which to publish the ever increasing number of studies in this area. May you be overwhelmed with manuscripts! PMID- 29323567 TI - The development of an audit tool for Macmillan nurses. AB - Recent NHS reforms in the UK have stressed the importance of developing services that are in line with the preferences of patients. The desire to gauge the satisfaction of patients and carers with Macmillan nursing services led to the development of an audit tool for Macmillan nurses to use in hospitals or the community. This article describes the components of the audit tool and discusses its development. It concludes with a brief discussion of the issues arising from the pilot phase of the audit tool. PMID- 29323568 TI - A reflection on 6 years of hospice work. AB - Six years of working in palliative care have left me with a need to explain my experiences. PMID- 29323569 TI - Nurses' estimations of patients' prognoses in the last days of life. AB - This study was based on two medical wards in a teaching hospital. It examined the accuracy with which nurses estimated patients' prognoses in the last days and hours of life and the cues used to make such assessments. An exploratory and descriptive approach was adopted. The study was divided into two parts: a cross sectional interview study and a prospective patient follow-up study. The cues used by the nurses were identified and categorised and estimates of life expectancy were assessed for accuracy. Results showed that multiple cues were used and that although nurses were able to identify patients who were dying imminently, their accuracy regarding precise prognosis varied considerably. They also revealed that the most accurate assessments were made by nurses carrying out basic patient care, rather than the most experienced staff. PMID- 29323570 TI - Aromatherapy and massage in palliative care. AB - Aromatherapy and massage have gained wide popularity among nurses in clinical practice in recent years. Many nurses in palliative care settings are using these therapies with the assumption that they improve patients' quality of life, but no research has yet investigated their effectiveness. A study was set up to assess the effects of massage and aromatherapy massage on cancer patients receiving palliative care. Patients received three full body massages over a 3-week period, with or without the essential oil Roman Chamomile. The measurements used were the Rotterdam Symptom Checklist (RSCL) and State-Trait Anxiety Inventory. Post-test scores for all patients improved. These were statistically significant in the aromatherapy group on the RSCL physical symptom subscale, quality of life subscale and state anxiety scale. Responses to the post-therapy questionnaire indicate that patients consider the massage or aromatherapy to be beneficial in reducing anxiety, tension, pain and depression. PMID- 29323571 TI - Sociological factors and psychosocial implications of lymphoedema. AB - Lymphoedema can affect many patients with cancer, either as a result of treatment or in the advanced stages of disease. This article outlines some of the sociological and psychosocial factors that were found to be significant in the management of arm swelling. Older and working women were found to have significantly larger swollen arms. Arm size also increased when swelling had been present for a greater period. The psychosocial implications of lymphoedema appeared to be complex and unique to the individual. PMID- 29323572 TI - Palliative care in developing countries: luxury or necessity? AB - Palliative care is not a luxury in developing countries. This article challenges the assumption that money spent on the care of people who are terminally ill cannot be justified in the face of many competing claims. The absence of screening and diagnostic services, combined with a cultural reluctance to seek help, frequently results in patients presenting at a late stage in the natural history of their disease. Pain and symptom relief remain the only options. In developing countries, the health care systems and social networks are often inadequate to support terminally ill members of society and it is argued that palliative care home teams would provide the ideal model of care. Palliative care's eligibility for inclusion in the health care budget of Kenya is demonstrated in this article and the difficulties it is facing in other developing countries are described. A case history seeks to show the necessity of palliative care in these areas of the world. PMID- 29323574 TI - Authors' reply to letter to the editor: Lidocaine gel vs lidocaine spray in reducing pain during insertion of the intrauterine contraceptive device. PMID- 29323575 TI - Phase II investigational oral drugs for the treatment of radio/chemotherapy induced oral mucositis. AB - INTRODUCTION: Oral mucositis is a significant unmet clinical need for many cancer patients. The biological complexity of mucositis' pathogenesis provides a number of mechanistic targets suitable as pharmacologic targets. The diversity of targets has stimulated drug development in search of an effective intervention. In this paper, we review a range of agents that are currently being evaluated. Areas covered: Drugs for management of oral mucositis vary in formulation, route of administration and biological target. Most propose to interrupt the initiation of injury by suppressing activation of the innate immune response or countering oxidative stress, or minimizing downstream inflammatory responses. Overwhelmingly, the population most studied is patients being treated with concomitant chemoradiation for cancers of the head and neck as this is the cohort that most consistently suffers severe mucositis for long periods of time. The Phase 2 pipeline is robust. Preliminary data reported for a number of agents is optimistic. Genomics may be important in interpreting and comparing responses to agents across widely demographically diverse populations. Expert opinion: Oral mucositis remains a significant toxicity for patients undergoing cancer treatment. Incremental reports of successes have been noted for a number of targeted agents. PMID- 29323576 TI - Preserving the reproductive potential of transgender and intersex people. AB - BACKGROUND: The bodies of some transgender and intersex people have been mutilated and their minds subjected to immense distress. Their gender has often been determined by others. Loss of fertility used to be considered an inevitable consequence of treatment. OBJECTIVE: To review the issue of preserving the reproductive potential of transgender and intersex people. METHODS: A narrative review based on a wide-ranging search of the literature in multiple disciplines. RESULTS: Major technological advances have facilitated reproduction for transgender and intersex people in the last few years. A majority of trans-adults believe that fertility preservation should be offered to them. Deferment of surgery for intersex people is often best practice; gonadectomy in infancy closes off fertility options and determines a gender they may later regret. CONCLUSIONS: Transgender and intersex people should be able to consent to or decline treatment, especially radical surgery, themselves. Preservation of reproductive potential and sexual function must be given a high priority. Treatment by multidisciplinary teams can provide a strong emphasis on mental health and well being. Detailed information about options, an absence of any coercion and enough time are all needed in order to make complex, life-changing decisions. PMID- 29323578 TI - Effects of black cohosh and estrogen on core body and tail-skin temperatures in ovariectomized rats by telemetric monitoring with dual thermistor probes. AB - OBJECTIVES: To investigate the effects of black cohosh and estrogen on the temperature in ovariectomized rats, the core body temperature (CBT) and tail-skin temperature (TST) were simultaneously monitored and the relationship between these two temperatures was explored. METHODS: Twenty-four female Sprague-Dawley rats aged 8 weeks were randomly divided into four groups: sham-operated (SHAM), ovariectomized (OVX), OVX treated with estradiol valerate (OVX + E), and OVX treated with isopropanolic black cohosh extract (OVX + ICR). Rats were sham operated or ovariectomized and were implanted with telemetry transmitters with dual thermistor probes. Two weeks after surgery, the animals were treated with drugs for 4 weeks. During the last week of the treatments, the dynamic temperature profiles of the CBT and TST were collected. RESULTS: The average CBT and TST, TST fluctuation frequency, and the average amplitude fluctuation were significantly higher in OVX than in SHAM rats. In addition, dramatic fluctuations of TST in OVX rats occurred at the time points of the day when the CBTs were lower in OVX rats than in SHAM rats. Treatment of OVX rats with estradiol valerate or isopropanolic black cohosh extract markedly decreased the average CBT and TST, TST fluctuation frequency, and the average amplitude fluctuation. Moreover, CBT was found to be significantly higher, while TST was lower in OVX + E than in OVX + ICR rats. CONCLUSIONS: Both black cohosh and estradiol treatments ameliorated the abnormal thermoregulation in OVX rats. In particular, black cohosh reduced CBT better than estradiol and estradiol reduced TST better than black cohosh. PMID- 29323577 TI - Ongoing or previous mental disorders predispose to adverse mood reporting during combined oral contraceptive use. AB - PURPOSE: Previous studies have emphasised that women with pre-existing mood disorders are more inclined to discontinue hormonal contraceptive use. However, few studies have examined the effects of combined oral contraceptives (COC) on mood in women with previous or ongoing mental disorders. MATERIALS AND METHODS: This is a supplementary analysis of an investigator-initiated, double-blinded, randomised clinical trial during which 202 women were treated with either a COC (1.5 mg estradiol and 2.5 mg nomegestrolacetate) or placebo during three treatment cycles. The Mini International Neuropsychiatric Interview was used to collect information on previous or ongoing mental disorders. The primary outcome measure was the total change score in five mood symptoms on the Daily Record of Severity of Problems (DRSP) scale in the intermenstrual phase of the treatment cycle. RESULTS: Women with ongoing or previous mood, anxiety or eating disorders allocated to COC had higher total DRSP Delta-scores during the intermenstrual phase of the treatment cycle in comparison with corresponding women randomised to placebo, mean difference 1.3 (95% CI 0.3-2.3). In contrast, among women without mental health problems, no difference in total DRSP Delta-scores between COC- and placebo users was noted. Women with a risk use of alcohol who were randomised to the COC had higher total DRSP Delta-scores than women randomised to placebo, mean difference 2.1 (CI 95% 1.0-3.2). CONCLUSIONS: Women with ongoing or previous mental disorders or risk use of alcohol have greater risk of COC-induced mood symptoms. This may be worth noting during family planning and contraceptive counselling. PMID- 29323579 TI - A comparative study of patients' and nurses' perceptions of pain relief. AB - Visual analogue scales were used to assess pain and pain relief in a sample of 20 cancer patients. Simultaneously, the nurse caring for the patient was asked to assess the status of the patient's pain. The scores were compared to distinguish any differences between the two groups. The two groups were also asked to mark on a schematic body diagram the location of the patient's pain. Six nurses were interviewed to elicit information about their approach to pain relief. The results suggest that there is a discrepancy between the patients' and the nurses' pain ratings. The nurses overestimated the patients' pain in the majority of cases. These results were not anticipated as recent studies have shown that nurses generally underestimate patients' pain. This highlights the nurses' lack of detailed knowledge concerning the patients' pain. In the interviews the nurses demonstrated an awareness of the basis of pain assessment; however, the results of the study suggest that this knowledge is not applied in practice. PMID- 29323580 TI - Quality through partnership. AB - Examination of the relationship between practice and education inspired the development of a model demonstrating that their partnership is essential in order to assure quality palliative care. The political, professional and personal influences that form the model's boundaries highlight the fact that palliative care is not only in a position to adopt change, but also to be proactive in influencing and effecting change. While the model was developed in the context of palliative care, it is equally applicable to other specialties. PMID- 29323581 TI - Palliative nursing and managed care. AB - The origins of modern palliative nursing lay in social changes during the 1950s and 1960s. In Europe and North America, pioneers in the social sciences cracked open the cultural silence about death and dying which was pervasive at that time. Pioneers in clinical practice fostered the establishment of the hospice as a service to humanise the experience of terminal illness and treat the distressing symptoms of painful dying. Both efforts were part of a social movement to improve the health and wellbeing of vulnerable people isolated from effective care by cultural norms and taboos about death. PMID- 29323582 TI - Implications of pet-facilitated therapy in palliative nursing. AB - Pet therapy is reviewed in terms of its history, physical and psychological benefits and potential problems. There are many reasons why pet therapy is ideally suited to palliative care and these are discussed. The introduction of an appropriate pet to a hospice or palliative care unit/service is described and possible pitfalls are identified. PMID- 29323583 TI - Developing a home chemotherapy service. AB - Achemotherapy at home service was established to meet the needs of the Walsall community by providing greater flexibility of choice for patients requiring outpatient chemotherapy. The aim was to extend existing services to meet the individual needs of patients with advanced disease who would benefit from palliative chemotherapy treatment but, who may, for physical or social reasons, find it difficult to attend hospital. Multidisciplinary collaboration, a home nursing assessment and a joint care plan with ongoing patient education and support, formed key elements of the home chemotherapy programme. Specific considerations regarding the safe handling of cytotoxic drugs and waste products in the community had to be addressed. The treatment of a sample of five patients in their own homes has been achieved, demonstrating the effectiveness and feasibility of such a service. A patient satisfaction survey and professional audit system are used, in order to measure its progress and assess future development needs. PMID- 29323584 TI - Readers react to the launch of the IJPN and highlight a promising future for nursing research in palliative care. AB - Madam, Congratulations on a most timely, well-presented and highquality publication. We in New Zealand are particularly impressed with the international scope of your journal, being isolated in distance from Europe. We are developing closer ties with Australia and the Pacific Rim, but we have a lot to offer and learn, and therefore an international forum to share expertise is timely. PMID- 29323585 TI - Role of complementary therapies in HIV/AIDS. AB - Complementary is a commonly used term to describe therapies that were viewed as alternatives to conventional medicine. This change in thinking is important when considering their use for people with human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS). As orthodox medicine can offer support but not a cure for this condition, people with HIV/AIDS are seeking help from a variety of complementary therapies to enhance wellbeing and quality of life. This approach has also been adopted by many people living with other life-threatening illnesses such as cancer, where conventional medicine currently offers few guarantees of cure or remission. This article will focus on complementary therapies and the reasons for their use by people with HIV and AIDS, given the limits of current scientific research in this field. The qualities required by professionals offering complementary therapies and the close link of these therapies to the psychological and spiritual aspects of care for people with HIV/AIDS will be addressed. PMID- 29323586 TI - Research priorities in palliative care. AB - Using the Delphi technique, social workers, occupational therapists, physiotherapists, chaplains, doctors and two groups of nurses were surveyed to determine priorities for clinical research in palliative care. The total number of panellists was 1304 and, of these, 821 completed all three rounds of the survey. Problem statements were generated from data supplied by panellists in each of the six groups. Subsequent rounds were conducted to enable panellists to (a) rank questions to determine their top 10 priority items and (b) indicate those items for which their own professional group should take research leadership. None of the items identified as research priorities appeared in the top 10 lists of all six groups. However, a number of items were selected by several of the groups. These included multi-professional teamwork and symptom management. A number of items, including the needs of informal carers and aspects of spiritual care, were selected by only one of the groups. PMID- 29323587 TI - Specialist nursing practice. AB - April 1st was an important date for nurses in the UK as, after several years of preparation and planning, the long-awaited standards for postregistration education and practice (PREP) finally became a reality. Formulated by the United Kingdom Central Council for Nursing, Midwifery and Health Visiting (UKCC), these standards define what nurses must do in order to maintain their status on the UKCC register. They also set out the framework of postregistration education and practice required for specialist, community and advanced nursing practice (UKCC, 1994). PMID- 29323588 TI - An evaluation of the use of massage and essential oils on the wellbeing of cancer patients. AB - Massage and aromatherapy are being used increasingly by nurses to enhance the wellbeing of patients in palliative care settings, yet little evaluation of these therapies has been undertaken. This article reports a quasi experimental study comparing the effects of an 8-week course of massage, with or without the addition of a blend of essential oils, on patients undergoing cancer treatment. Findings from the study suggest that massage has a significant effect on anxiety and this was found to be greater where essential oils were used, although the small sample prevented this from being established conclusively. Massage was reported to be universally beneficial by patients, it assisted relaxation and reduced physical and emotional symptoms. The authors call for more research to be conducted in this area with larger cohorts of patients. Copies of the full research report for this study may be obtained from the Macmillan Practice Development Unit, Centre for Cancer and Palliative Care Studies, Institute of Cancer Research/Royal Marsden NHS Trust, Fulham Road, London SW3 6JJ. Price L6.00. PMID- 29323589 TI - Palliative care services for ethnic groups in Leicester. AB - The objectives of this study were to examine current palliative care service provision and its use by the black and minority ethnic (BME) groups in Leicester.* The study comprised two stages, an initial pilot study using semistructured tape recorded interviews, followed by a structured interview schedule. It was set in the voluntary sector, a local hospice and one trust hospital in Leicester. The subjects were 33 palliative care patients and carers from BME groups. The findings identify some deficiencies in access to and provision of palliative care services to BME communities in the city of Leicester. There appears to be a low level of satisfaction among the sample. There are also differences within the group, with 50% indicating that things are unsatisfactory. The main area of need identified was information about illness and available services. The study concluded that providers of palliative care need to examine their policy and practices with regards to whether they are acceptable, accessible and culturally sensitive to the needs of BME groups. A low uptake of services is more likely to suggest inappropriate provision rather than lack of need. An extended version of this article appears in Richardson and Wilson Barnett (1995). *The term black and minority ethnic (BME) group has been used to refer to people from racial or other minorities who may be disadvantaged because of their racial bakground. There is no single accepted term, nor one that can be seen as politically correct or incorrect. It should, however, be recognised that there may be some people who do not identify themselves as black or a minority but who share a common experience of racism (Anthias, 1992; Cole, 1993). PMID- 29323590 TI - Feasibility of education programmes in palliative care for nurses in Europe. AB - In September 1994, a group of nurses met for 3 days in London under the auspices of the European Oncology Nursing Society (EONS), supported by funds from the European Community Europe Against Cancer Programme (ECEACP) and the UK charity, the Cancer Relief Macmillan Fund (CRMF). PMID- 29323591 TI - Inside story: chaplain at work. AB - This is a personal account of how I seek to accompany a person who is dying. PMID- 29323592 TI - Truth-telling and collusion: the ethical dilemmas of palliative nursing. AB - Within the context of caring for a patient receiving palliative care, it is probable that a nurse will encounter a number of ethical dilemmas. Controversy will often be the partner of ethics in any discussion. This article looks at differing stances taken by opposing camps and offers an unbiased look at both sides of the debate, focusing on truth-telling and collusion. Case histories are analysed within a framework of ethical theory. PMID- 29323593 TI - Short reports. AB - American Oncology Nursing Society congress The third international conference on children and death Annual scientific meeting of the European Association of Cancer Education Launch of nurse-led initiatives in lung cancer care. PMID- 29323594 TI - District nurses' views on the role of rehabilitation in palliative care. AB - Recently, there has been a surge of interest in the notion that rehabilitation should become an integral part of palliative care. The World Health Organization (WHO; 1987) asserts that integrating a rehabilitative approach will assist in achieving the aims of palliative care by enhancing the patient's quality of life. However, WHO suggests that health-care workers have not yet appreciated the opportunities presented by this approach in order to be able to succeed in achieving the aims of palliative care. District nurses (DNs) are in a key position to integrate the philosophy of rehabilitation and their approach to palliative care. A small study was undertaken to investigate the beliefs of DNs in relation to rehabilitation in palliative care, specifically with regards to patients with cancer. The findings demonstrated that DNs generally support the view that rehabilitation has a role to play in palliative care. However, barriers which, according to the literature, prevent a rehabilitative approach being used were identified as problematic for this sample group. The findings have helped to identify areas that should be addressed; these have implications for clinical practice, management of resouces and education. PMID- 29323595 TI - Palliative care nursing in France: a personal perspective. AB - This article gives an account of a visit to palliative care services in France and identifies the benefits to be gained from the cross-fertilisation of ideas from a different European culture. Most of the challenging issues around terminal illness and death are experienced by the French, but palliative care provision has not been developed and established within the health-care system to the extent that it has in Britain. The role of the clinical nurse specialist (CNS) in palliative care in France closely matches the role of the palliative care CNS in Britain. Nurse-led community teams in France have the potential to develop specialist care practice in a way that will maximise the nursing role, enhance patient care and disseminate the principles of good practice. PMID- 29323596 TI - Stress and staff support in hospice: a review of the literature. AB - An extensive review of the literature was carried out which highlighted the causes and effects of stress, both generally and in palliative care, along with the coping strategies for stress. The literature emphasised the intense nature of palliative care and the importance of having effective support mechanisms in place for staff. PMID- 29323597 TI - Development of hospice care at Methodist Hospital. AB - Patients who are terminally ill in hospital are one type of the patient population affected by health-care reform. A hospital-hospice programme may be an appropriate alternative for their care. This article describes the process of creating a hospital-hospice programme. In order to identify the potential patient population, a review of the charts of all patients who died at Methodist Hospital over a 3-month period was carried out by the hospice medical director. The purpose of this review was to identify 'hospice-appropriate' patients and to determine the number of days of the patients' hospital stay that were appropriate for hospice care. The costs of the 'appropriate' hospice patients were reviewed to evaluate whether a reduction in charges would be accomplished by the implementation of this programme. The reduction in charges included treatment and tests that would not have been undertaken had the 'hospice-appropriate' patient been admitted to the hospital-hospice programme. A reduction in charges totalling several hundred thousand dollars occurred during the first year of the hospital hospice programme's existence. PMID- 29323598 TI - The partner's experience of breast cancer: a phenomenological approach. AB - The aim of this study is to describe the immediate 'lived experience' of partners of breast cancer patients. Previous attempts to explore the reactions and feelings of partners have been restricted mainly to quantitative research methods. While these methods are valuable in collecting information on specific areas of concern, they are limited to gathering information that the researcher sees as important. Thus, the value of phenomenology is demonstrated in describing the experience as a whole. A problem in using this method is that it can be time consuming, hence only seven participants were included in the study. The participants were selected on the basis that they had personally lived the experience and were willing to participate. Data collection was by means of in depth, tape-recorded interviews that were transcribed and analysed. Significant statements were extracted from the data and linked to each other to form separate themes. The six themes which were identified are described: anticipating fate; fear; denial; helplessness; sharing of altered body image; and diversity of emotions. Finally, the implications for nursing are discussed. PMID- 29323599 TI - Nurses in the front lines of palliative care. AB - Nurses generally serve in the front lines of action; this is particularly true for those involved in palliative care. Informed nurses are essential around the world, especially in developing countries, where 39 of the 51 million individuals who die every year are to be found. Nurses are key in the delivery of palliative care and are in great need of the sort of timely and readily understandable in formation to be provided by the International Journal of Palliative Nursing (IJPN). PMID- 29323601 TI - After diagnosis of cancer: the patient's view of life. AB - This research was undertaken to increase our understanding of cancer patients' perceptions of their needs, and how these changed over time. Sixty five patients with breast, prostate/testes or colorectal cancer were each interviewed at 5 and 13 months. Concrete accounts were elicited of good and bad experiences that were significant to patients. Three dimensions of need were identified: care availability and quality in disease management; good information and sympathetic communication; and, most importantly, regaining control of life. PMID- 29323602 TI - Macmillan carers: a practical approach to home care. AB - This article describes a service development in palliative care which aims to offer practical support and caring skills to patients and their families at home. The concept of home care in the UK distinguishes between health-care and social care needs and workers are allocated from different departments to provide that care. Such a distinction is not always clear and there is much debate about how needs are split. The continued allocation of funding from separate health and social services resources exacerbates the issue. The Macmillan Carer Scheme, which offers both health and social care to patients and their families, is an important and significant step in the move towards needs-based service development. PMID- 29323603 TI - Correspondence. AB - Madam, Thank you for an excellent second edition of the International journal o f Palliative Nursing. I am excited by the development of the journal and eagerly await each edition. PMID- 29323604 TI - Preconception Health Indicators for Public Health Surveillance. AB - OBJECTIVES: In response to an expressed need for more focused measurement of preconception health (PCH), we identify a condensed set of PCH indicators for state and national surveillance. METHODS: We used a systematic process to evaluate, prioritize, and select 10 PCH indicators that maternal and child health programs can use for surveillance. For each indicator, we assessed prevalence, whether it was addressed by professional recommendations, Healthy People 2020 objectives, or Centers for Disease Control and Prevention winnable battles, measurement simplicity, data completeness, and stakeholders' input. RESULTS: Fifty PCH indicators were evaluated and prioritized. The condensed set includes indicators that rely on data from the Pregnancy Risk Assessment Monitoring System (n = 4) and the Behavioral Risk Factor Surveillance System (n = 6). The content encompasses heavy alcohol consumption, depression, diabetes, folic acid intake, hypertension, normal weight, recommended physical activity, current smoking, unwanted pregnancy, and use of contraception. CONCLUSIONS: Having a condensed set of PCH indicators can facilitate surveillance of reproductive-aged women's health status that supports monitoring, comparisons, and benchmarking at the state and national levels. PMID- 29323606 TI - Response to Dr Pedersen's article. PMID- 29323605 TI - Outcomes for Gestational Carriers Versus Traditional Surrogates in the United States. AB - BACKGROUND: Little is known about the obstetric and procedural outcomes of traditional surrogates and gestational carriers. MATERIALS AND METHODS: Participants included 222 women living in the United States who completed a brief online survey between November 2015 and February 2016. Differences between gestational carriers (n = 204) and traditional surrogates (n = 18) in demographic characteristics, pregnancy outcomes, and procedural outcomes were examined using chi-squared tests, Fisher's exact tests, and t-tests. RESULTS: Out of 248 eligible respondents, 222 surveys were complete, for a response rate of 89.5%. Overall, obstetric outcomes were similar among gestational carriers and traditional surrogates. Traditional surrogates were more likely than gestational carriers to have a Center for Epidemiologic Studies Depression Scale Revised score of 16 or higher (37.5% vs. 4.0%). Gestational carriers reported higher mean compensation ($27,162.80 vs. $17,070.07) and were more likely to travel over 400 miles (46.0% vs. 0.0%) than traditional surrogates. CONCLUSIONS: Procedural differences, but not differences in obstetric outcomes, emerged between gestational carriers and traditional surrogates. To ensure that both traditional surrogates and gestational carriers receive optimal medical care, it may be necessary to extend practice guidelines to ensure that traditional surrogates are offered the same level of care offered to gestational carriers. PMID- 29323607 TI - Efficacy of oral vancomycin in primary prevention of Clostridium Difficile infection in elderly patients treated with systemic antibiotic therapy. PMID- 29323608 TI - The Association Between Low 50 g Glucose Challenge Test Values and Adverse Pregnancy Outcomes. AB - BACKGROUND: The implications of low values on the 50 g glucose challenge test (GCT) in pregnancy are not clearly defined. Few studies have evaluated the influence of maternal low GCT values on obstetrical outcomes. This study aimed to compare pregnancy outcomes between women with low 50 g GCT values and those with normal values. MATERIALS AND METHODS: Women undergoing gestational diabetes mellitus screening at 24-28 weeks of gestational age between January 2010 and December 2016 were retrospectively evaluated. Women with multifetal pregnancies, prepregnancy type I or II diabetes, GCT performed before 24 or after 28 weeks of gestational age, and women undergoing multiple GCTs in the same pregnancy were excluded. Low GCT values and normal GCT values were defined as <=85 mg/dL and 86 130 mg/dL, respectively. RESULTS: Of 3875 screened subjects, 519 (13.4%) women were included in the low GCT group and 3356 (86.6%) in the normal GCT group. Low GCT women had a significantly higher rate of small for gestational age (SGA) infants than normal GCT women (10.8% vs. 7.9%, p = 0.02). Cesarean section and postpartum hemorrhage (PPH) were less frequent in low GCT women than in normal women (32.6% vs. 42.8%, p < 0.01 and 0.2% vs. 1.2%, p = 0.03, respectively). Low GCT women had a 1.38-fold increased risk of bearing SGA infants (95% confidence intervals: 1.01-1.88, p = 0.04). CONCLUSIONS: Rate of SGA infants was significantly higher and cesarean delivery and PPH rates were significantly lower in women with low GCT values. Low GCT values were independently associated with an increased risk of SGA. PMID- 29323610 TI - The Debate About Electronic Cigarettes: Harm Minimization or the Precautionary Principle. AB - Two contrasting reviews (authored by Abrams et al. and Glantz & Bareham) in this volume have reached opposing conclusions on the effects of electronic cigarettes in a debate that is dividing the scientific and professional communities that have devoted careers to controlling the manufacture, advertising, sale, and use of combustible cigarettes. The research on the types, degree, and extent of harm from e-cigarettes is far from complete and, together with trends in teenage smoking and vaping, has raised new questions and prospects about the potential benefits that the new electronic products offer smokers of combustible cigarettes in quitting or at least cutting back on the known risks associated with the traditional forms of smoking. The rapidly morphing forms, constituents, promotions, and uses of the electronic varieties of the new nicotine delivery products (in this case electronic cigarettes) make research on their biological and behavioral effects moving targets. The two sides of this argument have produced a global divide on policy strategies. PMID- 29323611 TI - Harm Minimization and Tobacco Control: Reframing Societal Views of Nicotine Use to Rapidly Save Lives. AB - Inhalation of the toxic smoke produced by combusting tobacco products, primarily cigarettes, is the overwhelming cause of tobacco-related disease and death in the United States and globally. A diverse class of alternative nicotine delivery systems (ANDS) has recently been developed that do not combust tobacco and are substantially less harmful than cigarettes. ANDS have the potential to disrupt the 120-year dominance of the cigarette and challenge the field on how the tobacco pandemic could be reversed if nicotine is decoupled from lethal inhaled smoke. ANDS may provide a means to compete with, and even replace, combusted cigarette use, saving more lives more rapidly than previously possible. On the basis of the scientific evidence on ANDS, we explore benefits and harms to public health to guide practice, policy, and regulation. A reframing of societal nicotine use through the lens of harm minimization is an extraordinary opportunity to enhance the impact of tobacco control efforts. PMID- 29323612 TI - Pharmacokinetic Analysis of Intraocular Penetration of Latanoprost Solutions with Different Preservatives in Human Eyes. AB - PURPOSE: To investigate the effect of excipients on latanoprost penetration into the aqueous humor with clinically available 6 products with different solutions mainly in the types and concentrations of preservatives. METHODS: In 363 patients with cataracts, we instilled 1 latanoprost drop in 1 eye before surgery. The drop was randomly selected by brand name product (A) and 5 generic products (B-F) composed with different excipients. B contains similar excipients to A. C and D contain lower concentrations of benzalkonium chloride than A. E includes sodium benzoate, and F contains no preservatives. At 0.5-1, 3, and 6 h after instillation, samples of aqueous humor were collected to determine the latanoprost free acid by mass spectrometry. The time course of intraocular concentration and the areas under the aqueous humor latanoprost free acid concentration-time curves (AUCs) were calculated. RESULTS: At 0.5-1 h, the aqueous humor concentration of latanoprost free acid was 8.5 +/- 1.0 ng/mL for C, which was significantly higher (P < 0.01) than that of A (3.4 +/- 0.5 ng/mL). At 3 and 6 h, however, no significant difference was noted in the concentrations of latanoprost free acid between the brand name and generic products. For each of the generic products, the peak free acid concentration was above the known threshold concentration for biological activity. At 6 h postdose, however, the levels of latanoprost free acid were below the threshold for Products C, E, and F. Comparisons of AUC0-6h and AUC0-24h values showed that these parameters were the greatest with A, and E was significantly inferior to A (P < 0.05). CONCLUSIONS: Currently available latanoprost solutions with different preservatives showed sufficient intraocular concentration to activate the FP receptor, but different pharmacokinetic profiles of absorption or elimination. PMID- 29323609 TI - E-Cigarettes: Use, Effects on Smoking, Risks, and Policy Implications. AB - Since e-cigarettes appeared in the mid-2000s, some practitioners, researchers, and policy makers have embraced them as a safer alternative to conventional cigarettes and an effective way to stop smoking. While e-cigarettes deliver lower levels of carcinogens than do conventional cigarettes, they still expose users to high levels of ultrafine particles and other toxins that may substantially increase cardiovascular and noncancer lung disease risks, which account for more than half of all smoking-caused deaths, at rates similar to conventional cigarettes. Moreover, rather than stimulating smokers to switch from conventional cigarettes to less dangerous e-cigarettes or quitting altogether, e-cigarettes are reducing smoking cessation rates and expanding the nicotine market by attracting youth. PMID- 29323613 TI - iDrugs and iDevices Discovery Research: Preclinical Assays, Techniques, and Animal Model Studies for Ocular Hypotensives and Neuroprotectants. AB - Discovery ophthalmic research is centered around delineating the molecular and cellular basis of ocular diseases and finding and exploiting molecular and genetic pathways associated with them. From such studies it is possible to determine suitable intervention points to address the disease process and hopefully to discover therapeutics to treat them. An investigational new drug (IND) filing for a new small-molecule drug, peptide, antibody, genetic treatment, or a device with global health authorities requires a number of preclinical studies to provide necessary safety and efficacy data. Specific regulatory elements needed for such IND-enabling studies are beyond the scope of this article. However, to enhance the overall data packages for such entities and permit high-quality foundation-building publications for medical affairs, additional research and development studies are always desirable. This review aims to provide examples of some target localization/verification, ocular drug discovery processes, and mechanistic and portfolio-enhancing exploratory investigations for candidate drugs and devices for the treatment of ocular hypertension and glaucomatous optic neuropathy (neurodegeneration of retinal ganglion cells and their axons). Examples of compound screening assays, use of various technologies and techniques, deployment of animal models, and data obtained from such studies are also presented. PMID- 29323614 TI - Evaluation of anionic surfactants effects on the skin barrier function based on skin permeability. AB - Anionic surfactants are often used for cleaning and pharmaceutical purposes because of their strong surfactancy and foaming property. However, they are rarely ingested orally, the skin is a part of the human body most affected by surfactants. Barrier function of the skin is very strong, but the anionic surfactants can cause serious damages to it. Recently, amino acid-based surfactants have attracted attention as a safer option owing to their biocompatibility. Cytotoxicity examinations revealed that the amino acid-based surfactants are superior to sulfate-based surfactants. However, a systematical and comprehensive study related to the effect of these surfactants on skin barrier function has not yet been reported. In this work, skin permeation test using the skin of hairless mice and HPLC method is carried out. The material transmission speed through skin in a steady state was different between each surfactant treatment. We performed a comprehensive analysis of the effect of surfactants on skin barrier function and defined Transmission Index as an index for the degree of effect of surfactants. Glutamate series amino acid-based surfactant were effective to Transmission Index and we guessed the cause was due to adsorption. Based on the finding this study, we suggest using adsorptive property as a measure to the effect on the skin barrier function. PMID- 29323615 TI - Short-Term and Long-Term Outcomes of Laparoscopic Versus Open Surgery for Low Rectal Cancer. AB - AIM: To compare the short-term and long-term outcomes of laparoscopic versus open surgery for low rectal cancer. METHODS: Patients with low rectal cancer who underwent laparoscopic or open surgery at our department from January 2009 to December 2013 were enrolled in this retrospective study. The primary end points were 3-year local recurrence and overall and disease-free survival (DFS) rates. Secondary end points were intraoperative and postoperative outcomes. RESULTS: Laparoscopic group had longer operative time (165.0 versus 140.0, P < .001), less blood loss (20.0 versus 40.0, P < .001), shorter length of incision (5.0 versus 18.0, P < .001), and more lymph node harvested (11.0 versus 9.0, P = .002). However, time to first flatus (P = .941), postoperative hospital stay (P = .095), postoperative complications (P = .155), and 30-day mortality (P = .683) was similar between two groups. With the median follow-up period of 65 months, the 3 year local recurrence rate was 4.3% in laparoscopic group and 7.5% in open group (P = .077); the 3-year overall and DFS rates were similar in two groups (85.9% versus 88.8%, P = .229 and 76.9% versus 79.2%, P = .448, respectively); and the overall and DFS curves were comparable between two groups (hazard ratio [HR] = 0.858, 95% confidence intervals [CI] 0.709-1.037, P = .112 and HR = 1.076, 95% CI 0.834-1.389, P = .275, respectively). CONCLUSIONS: Laparoscopic surgery is safe and has equivalent long-term oncologic outcomes for low rectal cancer when compared to open surgery. Furthermore, large-scale, prospective randomized clinical trials are needed to confirm the present findings. PMID- 29323616 TI - Bipolar Energy Instruments in Laparoscopic Uterine Cancer Surgery: A Randomized Study. AB - OBJECTIVE: To compare the perioperative outcomes of patients with uterine cancer, who were operated using advanced or conventional bipolar instruments. MATERIALS AND METHODS: Patients with clinically early-stage endometrial cancer were randomized to advanced (LigaSure) or conventional (Robi forceps) bipolar groups. Surgeries were performed by laparoscopy. Hysterectomy and bilateral salpingo oophorectomy with retroperitoneal lymphadenectomy were done in all cases. Primary endpoint of the study was to compare operation time for 2 groups. Other perioperative outcomes were also compared. ClinicalTrials.gov identifier number of the study was NCT02822820. RESULTS: Sixty-eight cases with endometrial cancer were randomized to 2 groups and each group included 34 subjects. Mean age and body mass index of all cases were 56.8 +/- 10.4 years and 31.1 +/- 5.3 kg/m2, respectively. Mean operation time was found significantly shorter in advanced bipolar group (134.2 +/- 29.7 minutes versus 163.5 +/- 27.7 minutes, P < .001). The other variables investigated such as intraoperative blood loss, duration of hospital stay, and postoperative pain scores did not show statistically significant difference between the groups. CONCLUSION: Operation time was shorter in advanced bipolar group, however, advanced and conventional bipolar energy instruments were comparable for other perioperative outcomes in laparoscopic endometrial cancer surgery. PMID- 29323617 TI - Differential effects of early palliative care based on the age and sex of patients with advanced cancer from a randomized controlled trial. AB - BACKGROUND: Early palliative care interventions enhance patient outcomes, including quality of life, mood, and coping, but it remains unclear whether certain subgroups of patients are more likely to benefit from early palliative care. We explored whether age and sex moderate the improved outcomes seen with early palliative care. METHODS: We performed a secondary analysis of data from a randomized trial of 350 patients with advanced lung and non-colorectal gastrointestinal cancer. Patients received an early palliative care intervention integrated with oncology care or usual oncology care alone. We used linear regression to determine if age (older or younger than 65) and sex moderated the effects of the intervention on quality of life (Functional Assessment of Cancer Therapy-General (FACT-G)), depression symptoms (Patient Health Questionnaire 9 (PHQ-9)), and coping (Brief COPE) within lung and gastrointestinal subgroups. RESULTS: At 24 weeks, younger patients with lung cancer receiving early palliative care reported increased use of active coping ( B = 1.74; p = 0.02) and decreased use of avoidant coping ( B = -0.97; p = 0.02), but the effects of early palliative care on these outcomes were not significant for older patients. Male patients with lung cancer assigned to early palliative care reported better quality of life (FACT-G: B = 9.31; p = 0.01) and lower depression scores (PHQ-9: B = -2.82; p = 0.02), but the effects of early palliative care on these outcomes were not significant for female patients. At 24 weeks, we found no age or sex moderation effects within the gastrointestinal cancer subgroup. CONCLUSION: Age and sex moderate the effects of early palliative care for patients with advanced lung cancer. Early palliative care may need to be tailored to individuals' unique sociodemographic and clinical characteristics. PMID- 29323618 TI - Measuring attitudes towards the dying process: A systematic review of tools. AB - BACKGROUND: At the end of life, anxious attitudes concerning the dying process are common in patients in Palliative Care. Measurement tools can identify vulnerabilities, resources and the need for subsequent treatment to relieve suffering and support well-being. AIM: To systematically review available tools measuring attitudes towards dying, their operationalization, the method of measurement and the methodological quality including generalizability to different contexts. DESIGN: Systematic review according to the PRISMA Statement. Methodological quality of tools assessed by standardized review criteria. DATA SOURCES: MEDLINE, PsycINFO, PsyndexTests and the Health and Psychosocial Instruments were searched from their inception to April 2017. RESULTS: A total of 94 identified studies reported the development and/or validation of 44 tools. Of these, 37 were questionnaires and 7 alternative measurement methods (e.g. projective measures). In 34 of 37 questionnaires, the emotional evaluation (e.g. anxiety) towards dying is measured. Dying is operationalized in general items ( n = 20), in several specific aspects of dying ( n = 34) and as dying of others ( n = 14). Methodological quality of tools was reported inconsistently. Nine tools reported good internal consistency. Of 37 tools, 4 were validated in a clinical sample (e.g. terminal cancer; Huntington disease), indicating questionable generalizability to clinical contexts for most tools. CONCLUSION: Many tools exist to measure attitudes towards the dying process using different endpoints. This overview can serve as decision framework on which tool to apply in which contexts. For clinical application, only few tools were available. Further validation of existing tools and potential alternative methods in various populations is needed. PMID- 29323619 TI - RNF8 - The Achilles heel of DNA repair when splicing rules. PMID- 29323620 TI - Enhanced visible light photocatalytic activity of N, F-codoped TiO2 powders with high thermal stability. AB - Doping non-metals onto TiO2 has been regarded as a promising way to gain a more effective photocatalyst. In this paper, N, F-codoped TiO2 was synthesized by the sol-gel method, demonstrating both high adsorption capacity and high photocatalytic activity under visible light irradiation. Samples were characterized by X-ray diffraction, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy and UV-visible diffuse reflectance spectra (UV-vis DRS). The results show that N, F-codoping can reduce the impact of calcination temperature on the structure and morphology of the sample, resulting in the sample exhibiting good thermal stability, even when the calcination temperature changes in a large range, instead of rutile, the anatase around 20 nm is the only phase in N, F-codoped samples. It can be clearly observed from the SEM images that N, F-codoped samples calcined at different temperatures are in the state of scattered particles with small size and good dispersed property. And it is vivid that the absorption intensity of N, F-codoped TiO2 samples in the visible light range increases substantially in DRS. According to the result of photocatalytic activity experiment, N, F-codoped TiO2 samples calcined at 973 K exhibited the highest degradation rate for Methylene Blue. PMID- 29323622 TI - Enhancing health care professionals' and trainees' knowledge of physical activity guidelines for adults with and without SCI. AB - BACKGROUND: Health care providers (HCPs) are preferred sources of physical activity (PA) information; however, minimal research has explored HCPs' knowledge of spinal cord injury (SCI) PA guidelines, and no research has examined HCP trainees' PA guideline knowledge. OBJECTIVE: The current study explored HCPs' and trainees' initial knowledge of PA guidelines for both adults with SCI and the general population, and the utility of an event-based intervention for improving this knowledge. METHODS: Participants (HCPs n = 129; trainees n = 573) reported guideline knowledge for both sets of guidelines (SCI and general population) immediately after, one-month, and six-months following the intervention. Frequencies determined guideline knowledge at each timepoint, while chi-squared tests examined differences in knowledge of both guidelines, as well as knowledge differences in the short- and long-term. RESULTS: Results demonstrated that HCPs and trainees lack knowledge of PA guidelines, particularly guidelines for adults with SCI. The results further suggest that a single event-based intervention is not effective for improving long-term guideline knowledge. CONCLUSION: Suggestions are made for future research with the aim of improving interventions that target HCP and HCP trainees' long-term guideline knowledge for adults with SCI and the general population. PMID- 29323623 TI - Bladder management practices in spinal cord injury patients: A single center experience from a developing country. AB - CONTEXT/OBJECTIVE: Inadequate bladder management in spinal cord injury (SCI) patients results in significant morbidity and even mortality. Clean intermittent catheterization (CIC) is the recommended option for SCI patients. The objective of the study was to document the bladder management practices of SCI patients in a developing country. DESIGN: Questionnaire based cross sectional survey Setting: Armed Forces Institute of Rehabilitation Medicine, Rawalpindi, Pakistan Participants: All patients with SCI (irrespective of duration, level and etiology) Interventions: Data documentation included demographics, level, severity and time since injury, bladder management techniques used, details of CIC, results of Urodynamic studies (if available), complications resulting from bladder management technique and patient awareness of the yearly follow up. SPSS V 20 was used for analysis. OUTCOME MEASURES: Not applicable Results: Thirty four consenting patients were enrolled. All were males. Mean age was 31.24 +/- 10.9. Most (17) of the patients were thoracic level paraplegics, while 12 patients had sustained a cervical SCI. Majority (23) had complete injury (ASIA A). Fifteen patients used CIC for bladder management followed by in dwelling Foley catheters in thirteen patients Those using CIC performed the procedure every four hours and used disposable catheters. The same 'disposable' catheter was used for 5-7 days by half of these patients. Only Six patients independently performed CIC. Three patients on CIC reported urinary tract infection. CONCLUSIONS: In the largest spinal rehabilitation unit of a developing country; Pakistan CIC was the preferred method of bladder management followed by indwelling catheter. Re-use of disposable catheters is a common practice due to cost issues. The rate of UTI was significantly lower in patients on CIC. PMID- 29323621 TI - Vaccines for the Paramyxoviruses and Pneumoviruses: Successes, Candidates, and Hurdles. AB - Human parainfluenza viruses (family Paramyxoviridae), human metapneumovirus, and respiratory syncytial virus (family Pneumoviridae) infect most infants and children within the first few years of life and are the etiologic agents for many serious acute respiratory illnesses. These virus infections are also associated with long-term diseases that impact quality of life, including asthma. Despite over a half-century of vaccine research, development, and clinical trials, no vaccine has been licensed to date for the paramyxoviruses or pneumoviruses for the youngest infants. In this study, we describe the recent reclassification of paramyxoviruses and pneumoviruses into distinct families by the International Committee on the Taxonomy of Viruses. We also discuss some past unsuccessful vaccine trials and some currently preferred vaccine strategies. Finally, we discuss hurdles that must be overcome to support successful respiratory virus vaccine development for the youngest children. PMID- 29323624 TI - Sella turcica bridging and ossified carotico-clinoid ligament: Correlation with sex and age. AB - Aim Sella turcica bridging and ossified carotico-clinoid ligament are two variants of the sella turcica, the origin of which is partially unknown. These variations should be properly recognised, as they may hamper the removal of the anterior clinoid process in surgical procedures. Therefore, our aim was to determine the prevalence of these two anatomical variants and to investigate their prevalence according to patient sex and age in a series of maxilla computed tomography scans. Materials and methods We revised 300 computed tomography scans of the head from northern Italian patients, stratified into three age groups (18 40 years, 41-60 years, >60 years): a logistic regression analysis was used to explore an association of sella turcica bridging with age and sex through Matlab software, also including a test for the extracted model ( P < 0.05). Results The mean prevalence of sella turcica bridging and ossified carotico-clinoid ligament were 0.16 +/- 0.06 (48/300, 16.0%) and 0.09 +/- 0.03 (26/300, 8.7%), respectively. Statistically significant differences according to sex were found neither for sella turcica bridging ( P = 0.345) nor for ossified carotico-clinoid ligament ( P = 0.412). Only sella turcica bridging showed a correlation with age ( P = 0.007). In addition, the two variants were often associated, as patients without sella turcica bridging usually did not show ossified carotico-clinoid ligament ( P < 0.001). Discussion Our results suggest an association between the two variants, and provide a novel contribution to the debate around their origin. PMID- 29323626 TI - A Scenario-Based Cognitive Behavioral Therapy Mobile App to Reduce Dysfunctional Beliefs in Individuals with Depression: A Randomized Controlled Trial. AB - INTRODUCTION: While self-administered mobile app-based cognitive behavioral therapy (CBT) has shown efficiency and effectiveness over the past decade, attempts to address automatic and negative beliefs have been lacking. The purpose of this study was to introduce and verify a mobile app that directly intervenes in dysfunctional thoughts. This app-based treatment includes recognizing automatic and negative thoughts of the protagonist of scenarios, writing advice directly to the main character, and sharing advice provided by other participants. MATERIALS AND METHODS: Thirty-four participants diagnosed with Other Specified Depressive Disorder were recruited and randomly allocated to a CBT-based mobile-app program, the Todac Todac (TT group), or a daily mood chart app program (control group). Participants were asked to use the software for 3 weeks. Assessments for autonomic thoughts and clinical symptoms were administered at baseline and at a follow-up evaluation. RESULTS: After completing the 3-week program, Dysfunctional Attitude Scale (DAS) scores in TT group were lower than they were in the control group. In clinical measures, both TT group and control group showed reduced Beck Depression Inventory-II (BDI-II) scores and situation dependent trait version of State-Trait Anxiety Inventory (STAI-X2) at follow-up. However, TT group showed significantly reduced STAI-X2 scores compared to control group. For all participants, changes in DAS scores were correlated with BDI-II and STAI-X2 scores. CONCLUSIONS: Our preliminary findings provide promising evidence that scenario-based CBT mobile apps can be used to deliver feasible and efficacious cognitive therapy. Long-term research is needed to determine the impact and effectiveness of this new treatment format. PMID- 29323625 TI - Catheter-associated urinary tract infections in persons with neurogenic bladders. AB - This review is based on the author's Donald Munro Lecture given at the annual conference of the Academy of Spinal Cord Injury Professionals in New Orleans, LA. Indwelling catheters play an important role in bladder management following SCI for many individuals with neurogenic bladders. There is an increased risk of UTI compared to other types of bladder management with indwelling urethral catheters but not SP catheters. To minimize the risk of symptomatic UTI, the following steps are essential: prevent bladder wall distention and resulting ischemia, maintain colonization with "good" bacteria, and prevent bladder stones. For individuals with recurrent symptomatic UTIs, try to change the environment, prevent bladder over distention, and make sure the bladder is "quiet" by using strategies such as adequate dosages of anticholinergics, onabotulinum toxin A, and preventing catheter blockage. Bacterial colonization of the bladder is common. However, bacterial colonization may have a positive effect by inhibition of colonization of pathogenic bacteria. Judicious use of antibiotics is important since antibiotics hasten the evolution of more resistant organisms. Potential prevention and treatment strategies include killing the offending organisms, changing the environment (such as urinary acidification), and modifying virulence factors and the bacterial microbiome. PMID- 29323627 TI - A Phase 3, Multicenter, Prospective, Open-Label Study to Evaluate the Safety of a Single Dose of Secnidazole 2 g for the Treatment of Women and Postmenarchal Adolescent Girls with Bacterial Vaginosis. AB - BACKGROUND: A novel formulation of secnidazole is under development in the United States for the treatment of bacterial vaginosis (BV). Efficacy and safety of other formulations of secnidazole have been reported. The objective of this study is to evaluate the safety of a single-dose oral granule formulation of secnidazole in a U.S. population of women with BV. METHODS: In this open-label study, patients were enrolled based on the following criteria: off-white, thin, homogeneous vaginal discharge; vaginal pH >=4.7; presence of >=20% clue cells; and positive potassium hydroxide whiff test. Eligible patients received a single dose of secnidazole 2 g at baseline. Patients were contacted on days 8-10 and were assessed for safety at an end-of-study visit (days 21-30). Additional endpoints included investigator assessment of the need for additional treatment and a post hoc analysis of clinical response to treatment. RESULTS: Of 321 patients, 283 (88.2%) completed the study. The mean age was 32 +/- 8.5 years; most patients were white (51.4%) or black/African American (46.1%). Most (79.1%) reported <=3 episodes of BV in the past year. The overall number of treatment emergent adverse events (TEAEs) was 95 (29.6%), of which 53 (16.5%) were treatment related. Common treatment-related TEAEs were vulvovaginal mycotic infection (5.3%), nausea (4.4%), and dysgeusia (3.1%). The proportion of patients not requiring additional BV treatment, as assessed by investigators, was 72.5%. CONCLUSIONS: Single-dose secnidazole 2 g was well tolerated, with a low overall number of TEAEs, most of which were mild to moderate. PMID- 29323628 TI - Use of Telehealth as a New Model for Following Intermittent Claudication and Promoting Patient Expertise. AB - BACKGROUND: A change in healthcare systems is needed, due to the increased prevalence of chronic diseases. Patient empowerment improves results in terms of patient quality of life (QoL) and satisfaction. INTRODUCTION: We have developed a telehealth program Control Telehealth Claudication Intermittent (CONTECI) for patients with peripheral arterial disease (PAD), aimed at enhancing patient satisfaction and QoL, while improving health system efficiency. MATERIALS AND METHODS: We conducted a randomized clinical trial of patients with PAD, at the intermittent claudication stage. Study subjects were randomized into either (1) an intervention arm (IA), which utilized our CONTECI program for promoting patient self-management, or (2) a control arm (CA), utilizing the familiar system of in-person patient visits. All patients were followed up at 1 year. RESULTS: The trial included 150 patients, 75 in each arm. Complications were diagnosed more quickly in the IA (7.85 days standard deviation (SD) 9.95 vs. 53.89 days SD 41.56; p = 0.016) compared with the CA. Rest pain decreased (1.4% vs. 8.4%; p = 0.05) in the IA group, as did the number of scheduled visits-decreased by 95.95% and the number of emergency visits (p = 0.017). QoL scores in IA patients improved from baseline (67.87 vs. 72.25; p = 0.047), as did patient satisfaction (67.36 vs. 76.78; p = 0.03). DISCUSSION: Telemedicine can improve health results and aid communication and visit scheduling. Our e-Health programs are financially viable. CONCLUSIONS: Self-management using the CONTECI telehealth program is feasible for patients with PAD. The program promotes patient expertise, encourages proactivity, increases QoL and satisfaction with disease control, and improves health resource use, with no evidence of clinical inferiority to conventional practices. PMID- 29323629 TI - RETRACTED: Three-Minutes Sitting Test for evaluating lumbar foraminal stenosis: A preliminary report. AB - This article has been retracted. PMID- 29323630 TI - Fatal innominate artery hemorrhage in a patient with tetraplegia: Case report and literature review. AB - Context Hemorrhage is one of the potentially fatal complications of tracheostomy. A rare but lethal cause of tracheostomy related bleeding is hemorrhage from the innominate artery. This occurs following tracheo-innominate artery fistula (TIF) formation, which is associated with a mortality rate of more than 85%. Here, we report the case of an individual with tetraplegia and a tracheostomy who died as a result of innominate artery hemorrhage. This case highlights the possible causes and interventions associated with this complication, and provides insight into tracheostomy related bleeding in patients with spinal cord injury (SCI). Findings A 15-year-old boy with a diagnosis of incomplete SCI at the C5 level was admitted for rehabilitation 4 months after injury. He required a tracheostomy for ventilation, and underwent subglottic stenosis dilatation thrice. Multiple decannulation attempts were performed without success. He received intensive care on several occasions for respiratory failure. During the course of his rehabilitation, a minimal tracheostomy bleed was observed, which became profuse within a few hours and led to hypoxia with loss of consciousness. An urgent sternotomy identified bleeding from a TIF. He suffered severe brain damage following massive tracheal hemorrhage and died. Conclusion/clinical relevance Given the morbidity of TIF-related hemorrhage, it is important to increase awareness of this rare condition among health-care providers, especially those in non-acute settings. Patients with SCI and a tracheostomy pose unique challenges related to respiratory compromise, which may accentuate TIF formation. PMID- 29323631 TI - Endovascular treatment with tirofiban during the acute stage of cervical spinal cord infarction due to vertebral artery dissection. AB - CONTEXT: Cervical spinal cord infarction is a rare and severe complication of vertebral artery dissection (VAD). We report a case of VAD in an acute stage followed by cervical spinal cord infarction that was treated using direct endovascular tirofiban infusion via digital subtraction angiography (DSA) monitoring. FINDINGS: A 48-year-old man presented with vertigo, neck pain, numbness and weakness in four limbs with subsequent cardiac and respiratory arrest. Neurological examination revealed hypoesthesia below the neck with grade one myodynamia on the right side of the limbs and zero on the left side. The diagnosis of VAD-related cervical spinal infarction was confirmed using DSA imaging and cervical vertebra magnetic resonance imaging (MRI). The patient received timely treatment with endovascular tirofiban infusion and achieved good outcome without any sequelae. CONCLUSION: Endovascular treatment with tirofiban may be a selective choice for cervical spinal cord infarction due to VAD in acute stage and warrants further study. PMID- 29323632 TI - Recycling of neodymium enhanced by functionalized magnetic ferrite. AB - This study systematically evaluates Neodymium (Nd) recovery from actual seawaters and wastewater using functionalized magnetic ferrite (3-mercaptopropionic acid tetraethyl orthosilicate ferrite, MPA-TEOS-ferrite). The recovery of Nd by MPA TEOS-ferrite displayed an L-shaped nonlinear isotherm, suggesting limiting binding sites on the adsorbent surface. At room temperature, a significant recovery of Nd by MPA-TEOS-ferrite increased from 8.99% to 99.99% with increasing pH (2.89-8.16) and an enhanced maxima Nd recovery capacity was observed on MPA TEOS-ferrite (25.58 mg/g) when compared with pure ferrite (22.27 mg/g). The L3 edge X-ray absorption near-edge structure (XANES) spectra for the adsorbents collected after Nd recovery indicated that Nd(III) was still the predominant oxidation species on the surface of MPA-TEOS-ferrite. Only slightly change in the oxidation state or electronic structure around the Nd ions could be found during the adsorption process. Importantly, no significant change was found on Nd recovery while the NaCl ionic strength increased from 0.01 to 0.5 N. Furthermore, the results also displayed that the synthesized MPA-TEOS-ferrite has a great potential in efficient and rapid recovery of Nd from seawaters and wastewater. PMID- 29323633 TI - Prevalence of metabolic syndrome in veterans with spinal cord injury. AB - CONTEXT/OBJECTIVE: Recent literature would suggest the prevalence of metabolic syndrome in persons with spinal cord injury (SCI) is higher than that of the general population, although no large cohorts have yet been reported. Part of the controversy relates to the differing definitions provided for metabolic syndrome and the characterization of obesity in persons with SCI. DESIGN/PARTICIPANTS: The current retrospective investigation represents a cross-sectional cohort of 473 veterans with SCI from a single center in the mid-Atlantic region of the United States for whom modified International Diabetes Federation (IDF) criterion variables for the metabolic syndrome were available in the computerized personal record system (CPRS). OUTCOME MEASURES: These variables included a surrogate marker of obesity appropriate to SCI (Body Mass Index (BMI) >= 22 kg/m2), as well as indicators of diabetes, dyslipidemia and hypertension. RESULTS: Over 57% of the veterans assessed were determined to have metabolic syndrome by modified IDF criteria, including 76.7% with BMI >= 22 kg/m2, 55.1% with or under treatment for hypertension, 49.7% with or previously diagnosed with diabetes mellitus, and 69.7% with or under treatment for high density lipoprotein (HDL) cholesterol under 40 mg/dl. CONCLUSION: Metabolic syndrome and its constituent components appear to be more prevalent in veterans with SCI than in the general population, suggesting a greater need for identification and treatment interventions in this specialty population. PMID- 29323634 TI - Epidemiology of traumatic spinal cord injury in Tianjin, China: An 18-year retrospective study of 735 cases. AB - STUDY DESIGN: Hospital-based retrospective study Objectives: To evaluate the pathogenetic features of traumatic spinal cord injury (TSCI) during 1999-2016 according to changed injury etiology with time, explore different characteristics of patients suffered a TSCI during 1999-2007 and 2008-2016 in Tianjin, China. SETTING: Tianjin Medical University General Hospital Methods: In this study, the medical records of TSCI patients were obtained from Tianjin Medical University General Hospital (TMUGH) from 1st January 1999 to 31th December 2016. Variables were recorded, including age, gender occupation, etiology, the level of injury, America Spinal Injury Association (ASIA) impairment scale, the severity, concomitant injuries, death and its cause. To explore the differences in characteristics by etiology and by two periods, related statistical methods were used to calculate the correlation of some variables. Differences in etiology of TSCI during 1999-2016 were evaluated and differences in epidemiological characteristics were separately compared and analyzed between the 1999-2007 period and the 2008-2016 period. RESULTS: From 1999-2016, 831 TSCI cases were identified and 96 cases were excluded from analyses. The male-to-female ratio was 2.9:1 and the mean age was 49.7+/-15.2 years, which changed significantly between 1999-2007 (45.1+/-14.2) and 2008-2016 (51.6+/-15.2). Traffic accidents (45.8%) were the leading cause of TSCI during the 1999-2007 period, followed by low falls (30.7%). However, the opposite result was observed during the 2008-2016 period. Significant difference was observed compared with thoracic, lumbar and sacral levels, cervical level was the most commonly affected levels and the percentage decreased to a certain degree between 1999-2007 and 2008-2016 (from 84.4% to 68.9%). The proportions of ASIA grades A, B, C, and D were 20.5%, 10.3%, 23.3%, and 45.9%, respectively. The percentage of complete tetraplegia decreased from 22.9% in 1999-2007 to 13.2% in 2008-2016, and the percentage of incomplete paraplegia increased from 9.7% to 27.9%. CONCLUSION: According to the changes in the epidemiological characteristics of TSCI, relevant health service, laws and regulations, preventative strategies should be readjusted to follow up the changing situation and epidemiological characteristics of TSCI. PMID- 29323635 TI - MukB ATPases are regulated independently by the N- and C-terminal domains of MukF kleisin. AB - The Escherichia coli SMC complex, MukBEF, acts in chromosome segregation. MukBEF shares the distinctive architecture of other SMC complexes, with one prominent difference; unlike other kleisins, MukF forms dimers through its N-terminal domain. We show that a 4-helix bundle adjacent to the MukF dimerisation domain interacts functionally with the MukB coiled-coiled 'neck' adjacent to the ATPase head. We propose that this interaction leads to an asymmetric tripartite complex, as in other SMC complexes. Since MukF dimerisation is preserved during this interaction, MukF directs the formation of dimer of dimer MukBEF complexes, observed previously in vivo. The MukF N- and C-terminal domains stimulate MukB ATPase independently and additively. We demonstrate that impairment of the MukF interaction with MukB in vivo leads to ATP hydrolysis-dependent release of MukBEF complexes from chromosomes. PMID- 29323636 TI - An optimized method for 3D fluorescence co-localization applied to human kinetochore protein architecture. AB - Two-color fluorescence co-localization in 3D (three-dimension) has the potential to achieve accurate measurements at the nanometer length scale. Here, we optimized a 3D fluorescence co-localization method that uses mean values for chromatic aberration correction to yield the mean separation with ~10 nm accuracy between green and red fluorescently labeled protein epitopes within single human kinetochores. Accuracy depended critically on achieving small standard deviations in fluorescence centroid determination, chromatic aberration across the measurement field, and coverslip thickness. Computer simulations showed that large standard deviations in these parameters significantly increase 3D measurements from their true values. Our 3D results show that at metaphase, the protein linkage between CENP-A within the inner kinetochore and the microtubule binding domain of the Ndc80 complex within the outer kinetochore is on average ~90 nm. The Ndc80 complex appears fully extended at metaphase and exhibits the same subunit structure in vivo as found in vitro by crystallography. PMID- 29323638 TI - The NHS at 70 and Alma-Ata at 40. PMID- 29323637 TI - Autocatalytic microtubule nucleation determines the size and mass of Xenopus laevis egg extract spindles. AB - Regulation of size and growth is a fundamental problem in biology. A prominent example is the formation of the mitotic spindle, where protein concentration gradients around chromosomes are thought to regulate spindle growth by controlling microtubule nucleation. Previous evidence suggests that microtubules nucleate throughout the spindle structure. However, the mechanisms underlying microtubule nucleation and its spatial regulation are still unclear. Here, we developed an assay based on laser ablation to directly probe microtubule nucleation events in Xenopus laevis egg extracts. Combining this method with theory and quantitative microscopy, we show that the size of a spindle is controlled by autocatalytic growth of microtubules, driven by microtubule stimulated microtubule nucleation. The autocatalytic activity of this nucleation system is spatially regulated by the limiting amounts of active microtubule nucleators, which decrease with distance from the chromosomes. This mechanism provides an upper limit to spindle size even when resources are not limiting. PMID- 29323640 TI - Offline: From 1918 to 2018-the lessons of influenza. PMID- 29323639 TI - The polio endgame: securing a world free of all polioviruses. PMID- 29323641 TI - Syria: 7 years into a civil war. PMID- 29323642 TI - Zimbabwe post-Mugabe era: reconstructing a health system. PMID- 29323643 TI - Tuberculosis: criteria for global leadership? PMID- 29323644 TI - Vision quest: gene therapy for inherited vision loss. PMID- 29323645 TI - In search of a teacher. PMID- 29323646 TI - WHO washes its hands of older people. PMID- 29323647 TI - Another perspective on the Foundation for a Smoke-Free World. PMID- 29323648 TI - Targeted radiotherapy for early breast cancer. PMID- 29323649 TI - Reducing childhood obesity in the UK and France. PMID- 29323650 TI - Reducing childhood obesity in the UK. PMID- 29323651 TI - Targeted radiotherapy for early breast cancer - Authors' reply. PMID- 29323652 TI - How does azithromycin improve asthma exacerbations? - Author's reply. PMID- 29323653 TI - How does azithromycin improve asthma exacerbations? PMID- 29323654 TI - Hypothyroidism and hypertension: fact or myth? PMID- 29323655 TI - Hypothyroidism and hypertension: fact or myth? - Authors' reply. PMID- 29323656 TI - Department of Error. PMID- 29323657 TI - Renewing the focus on health care for sexually assaulted children and adolescents. PMID- 29323659 TI - Production, deformation and mechanical investigation of magnetic alginate capsules. AB - In this article we investigated the deformation of alginate capsules in magnetic fields. The sensitivity to magnetic forces was realised by encapsulating an oil in water emulsion, where the oil droplets contained dispersed magnetic nanoparticles. We solved calcium ions in the aqueous emulsion phase, which act as crosslinking compounds for forming thin layers of alginate membranes. This encapsulating technique allows the production of flexible capsules with an emulsion as the capsule core. It is important to mention that the magnetic nanoparticles were stable and dispersed throughout the complete process, which is an important difference to most magnetic alginate-based materials. In a series of experiments, we used spinning drop techniques, capsule squeezing experiments and interfacial shear rheology in order to determine the surface Young moduli, the surface Poisson ratios and the surface shear moduli of the magnetically sensitive alginate capsules. In additional experiments, we analysed the capsule deformation in magnetic fields. In spinning drop and capsule squeezing experiments, water droplets were pressed out of the capsules at elevated values of the mechanical load. This phenomenon might be used for the mechanically triggered release of water-soluble ingredients. After drying the emulsion-filled capsules, we produced capsules, which only contained a homogeneous oil phase with stable suspended magnetic nanoparticles (organic ferrofluid). In the dried state, the thin alginate membranes of these particles were rather rigid. These dehydrated capsules could be stored at ambient conditions for several months without changing their properties. After exposure to water, the alginate membranes rehydrated and became flexible and deformable again. During this swelling process, water diffused back in the capsule. This long-term stability and rehydration offers a great spectrum of different applications as sensors, soft actuators, artificial muscles or drug delivery systems. PMID- 29323660 TI - Laser Doppler sensing for blood vessel detection with a biologically inspired steerable needle. AB - Puncturing blood vessels during percutaneous intervention in minimally invasive brain surgery can be a life threatening complication. Embedding a forward looking sensor in a rigid needle has been proposed to tackle this problem but, when using a rigid needle, the procedure needs to be interrupted and the needle extracted if a vessel is detected. As an alternative, we propose a novel optical method to detect a vessel in front of a steerable needle. The needle itself is based on a biomimetic, multi-segment design featuring four hollow working channels. Initially, a laser Doppler flowmetry probe is characterized in a tissue phantom with optical properties mimicking those of human gray matter. Experiments are performed to show that the probe has a 2.1 mm penetration depth and a 1 mm off axis detection range for a blood vessel phantom with 5 mm s-1 flow velocity. This outcome demonstrates that the probe fulfills the minimum requirements for it to be used in conjunction with our needle. A pair of Doppler probes is then embedded in two of the four working channels of the needle and vessel reconstruction is performed using successive measurements to determine the depth and the off-axis position of the vessel from each laser Doppler probe. The off-axis position from each Doppler probe is then used to generate a 'detection circle' per probe, and vessel orientation is predicted using tangent lines between the two. The vessel reconstruction has a depth root mean square error (RMSE) of 0.3 mm and an RMSE of 15 degrees in the angular prediction, showing real promise for a future clinical application of this detection system. PMID- 29323661 TI - Versatile technique for assessing thickness of 2D layered materials by XPS. AB - X-ray photoelectron spectroscopy (XPS) has been utilized as a versatile method for thickness characterization of various two-dimensional (2D) films. Accurate thickness can be measured simultaneously while acquiring XPS data for chemical characterization of 2D films having thickness up to approximately 10 nm. For validating the developed technique, thicknesses of few-layer graphene (FLG), MoS2 and amorphous boron nitride (a-BN) layer, produced by microwave plasma chemical vapor deposition (MPCVD), plasma enhanced chemical vapor deposition (PECVD), and pulsed laser deposition (PLD) respectively, were accurately measured. The intensity ratio between photoemission peaks recorded for the films (C 1s, Mo 3d, B 1s) and the substrates (Cu 2p, Al 2p, Si 2p) is the primary input parameter for thickness calculation, in addition to the atomic densities of the substrate and the film, and the corresponding electron attenuation length (EAL). The XPS data was used with a proposed model for thickness calculations, which was verified by cross-sectional transmission electron microscope (TEM) measurement of thickness for all the films. The XPS method determines thickness values averaged over an analysis area which is orders of magnitude larger than the typical area in cross sectional TEM imaging, hence provides an advanced approach for thickness measurement over large areas of 2D materials. The study confirms that the versatile XPS method allows rapid and reliable assessment of the 2D material thickness and this method can facilitate in tailoring growth conditions for producing very thin 2D materials effectively over a large area. Furthermore, the XPS measurement for a typical 2D material is non-destructive and does not require special sample preparation. Therefore, after XPS analysis, exactly the same sample can undergo further processing or utilization. PMID- 29323662 TI - CRISPR-Cas9-based genome-wide screening of Toxoplasma gondii. AB - Apicomplexan parasites, such as Toxoplasma gondii, cause extensive morbidity and mortality in humans and livestock, highlighting the need for a deeper understanding of their molecular biology. Although techniques for the generation of targeted gene disruptions have long been available for apicomplexans, such methods are not readily scalable to the entire genome. We recently used CRISPR Cas9 to disrupt all nuclear protein-coding genes in T. gondii using a pooled format. The method relies on transfection of a guide RNA library into parasites constitutively expressing Cas9. Here, we present the complete workflow of such a screen, including preparation of the guide RNA library, growth and testing of the recipient strain, generation of the mutant population, culture conditions for the screen, preparation of genomic DNA libraries, next-generation sequencing of the guide RNA loci, and analysis to detect fitness-conferring genes. This method can be deployed to study how culture conditions affect the repertoire of genes needed by parasites, which will enable studies of their metabolic needs, host specificity, and drug-resistance mechanisms. In addition, by manipulating the background in which the screen is performed, researchers will be able to investigate genetic interactions, which may help uncover redundancy or epistasis in the parasite genome. Using this method, a genome-wide screen and its analysis can be completed in 3 weeks, after ~1 month of preparation to generate the library and grow the cells needed, making it a powerful tool for uncovering functionally important genes in apicomplexan parasites. PMID- 29323663 TI - Multiplexed proteome analysis with neutron-encoded stable isotope labeling in cells and mice. AB - We describe a protocol for multiplexed proteomic analysis using neutron-encoded (NeuCode) stable isotope labeling of amino acids in cells (SILAC) or mice (SILAM). This method currently enables simultaneous comparison of up to nine treatment and control proteomes. Another important advantage over traditional SILAC/SILAM is that shorter labeling times are required. Exploiting the small mass differences that correspond to subtle differences in the neutron-binding energies of different isotopes, the amino acids used in NeuCode SILAC/SILAM differ in mass by just a few milliDaltons. Isotopologs of lysine are introduced into cells or mammals, via the culture medium or diet, respectively, to metabolically label the proteome. Labeling time is ~2 weeks for cultured cells and 3-4 weeks for mammals. The proteins are then extracted, relevant samples are combined, and these are enzymatically digested with lysyl endopeptidase (Lys-C). The resultant peptides are chromatographically separated and then mass analyzed. During mass spectrometry (MS) data acquisition, high-resolution MS1 spectra (>=240,000 resolving power at m/z = 400) reveal the embedded isotopic signatures, enabling relative quantification, while tandem mass spectra, collected at lower resolutions, provide peptide identities. Both types of spectra are processed using NeuCode-enabled MaxQuant software. In total, the approximate completion time for the protocol is 3-5 weeks. PMID- 29323664 TI - On-demand synthesis of organozinc halides under continuous flow conditions. AB - Organozinc reagents are versatile building blocks for introducing C(sp2)-C(sp3) and C(sp3)-C(sp3) bonds into organic structures. However, despite their ample synthetic versatility and broad functional group tolerance, the use of organozinc reagents in the laboratory is limited because of their instability, exothermicity and water sensitivity, as well as their labor-intensive preparation. Herein, we describe an on-demand synthesis of these useful reagents under continuous flow conditions, overcoming these primary limitations and supporting widespread adoption of these reagents in synthetic organic chemistry. To exemplify this procedure, a solution of ethyl zincbromoacetate is prepared by flowing ethyl bromoacetate through a column containing metallic zinc. The temperature of the column is controlled by a heating jacket and a thermocouple in close contact with it. Advice on how to perform the procedure using alternative equipment is also given to allow a wider access to the methodology. Here we describe the preparation of 50 ml of solution, which takes 1 h 40 min, although up to 250-300 ml can be prepared with the same column setup at a rate of 30 ml per h. The procedure provides the reagent as a clean solution with reproducible concentration. Organozinc solutions generated in flow can be coupled to a second flow reactor to perform a Reformatsky reaction or can be collected over a flask containing the required reagents for a batch Negishi reaction. PMID- 29323666 TI - The differential diagnosis of a TP53 genetic testing result. PMID- 29323665 TI - Arterial tortuosity syndrome: 40 new families and literature review. AB - PURPOSE: We delineate the clinical spectrum and describe the histology in arterial tortuosity syndrome (ATS), a rare connective tissue disorder characterized by tortuosity of the large and medium-sized arteries, caused by mutations in SLC2A10. METHODS: We retrospectively characterized 40 novel ATS families (50 patients) and reviewed the 52 previously reported patients. We performed histology and electron microscopy (EM) on skin and vascular biopsies and evaluated TGF-beta signaling with immunohistochemistry for pSMAD2 and CTGF. RESULTS: Stenoses, tortuosity, and aneurysm formation are widespread occurrences. Severe but rare vascular complications include early and aggressive aortic root aneurysms, neonatal intracranial bleeding, ischemic stroke, and gastric perforation. Thus far, no reports unequivocally document vascular dissections or ruptures. Of note, diaphragmatic hernia and infant respiratory distress syndrome (IRDS) are frequently observed. Skin and vascular biopsies show fragmented elastic fibers (EF) and increased collagen deposition. EM of skin EF shows a fragmented elastin core and a peripheral mantle of microfibrils of random directionality. Skin and end-stage diseased vascular tissue do not indicate increased TGF-beta signaling. CONCLUSION: Our findings warrant attention for IRDS and diaphragmatic hernia, close monitoring of the aortic root early in life, and extensive vascular imaging afterwards. EM on skin biopsies shows disease-specific abnormalities. PMID- 29323668 TI - Professional responsibilities regarding the provision, publication, and dissemination of patient phenotypes in the context of clinical genetic and genomic testing: points to consider-a statement of the American College of Medical Genetics and Genomics (ACMG). AB - Disclaimer: This Points to Consider document is designed as an educational resource to provide best practices for medical genetic clinicians, laboratories, and journals regarding the provision, publication, and dissemination of patient phenotypes in the context of genomic testing, clinical genetic practice, and research. While the goal of the document is the improvement of patient care, the considerations and practices described should not be considered inclusive of all proper considerations and practices or exclusive of others that are reasonably directed to obtaining the same goal. In determining the value of any practice, clinicians, laboratories, and journals should apply their own professional standards and judgment to the specific circumstances presented.The content of this article is solely the responsibility of the authors and does not necessarily represent the official views of the authors' affiliated institutions. PMID- 29323667 TI - Making new genetic diagnoses with old data: iterative reanalysis and reporting from genome-wide data in 1,133 families with developmental disorders. AB - PURPOSE: Given the rapid pace of discovery in rare disease genomics, it is likely that improvements in diagnostic yield can be made by systematically reanalyzing previously generated genomic sequence data in light of new knowledge. METHODS: We tested this hypothesis in the United Kingdom-wide Deciphering Developmental Disorders study, where in 2014 we reported a diagnostic yield of 27% through whole-exome sequencing of 1,133 children with severe developmental disorders and their parents. We reanalyzed existing data using improved variant calling methodologies, novel variant detection algorithms, updated variant annotation, evidence-based filtering strategies, and newly discovered disease-associated genes. RESULTS: We are now able to diagnose an additional 182 individuals, taking our overall diagnostic yield to 454/1,133 (40%), and another 43 (4%) have a finding of uncertain clinical significance. The majority of these new diagnoses are due to novel developmental disorder-associated genes discovered since our original publication. CONCLUSION: This study highlights the importance of coupling large-scale research with clinical practice, and of discussing the possibility of iterative reanalysis and recontact with patients and health professionals at an early stage. We estimate that implementing parent-offspring whole-exome sequencing as a first-line diagnostic test for developmental disorders would diagnose >50% of patients. PMID- 29323669 TI - Cost-effectiveness and comparative effectiveness of cancer risk management strategies in BRCA1/2 mutation carriers: a systematic review. AB - PURPOSE: To review the evidence for the effectiveness and cost-effectiveness of cancer risk management interventions for BRCA carriers. METHODS: Comparative effectiveness and cost-effectiveness analyses were identified by searching scientific and health economic databases. Eligible studies modeled the impact of a cancer risk management intervention in BRCA carriers on life expectancy (LE), cancer incidence, or quality-adjusted life years (QALYs), with or without costs. RESULTS: Twenty-six economic evaluations and eight comparative effectiveness analyses were included. Combined risk-reducing salpingo-oophorectomy and prophylactic mastectomy resulted in the greatest LE and was cost-effective in most analyses. Despite leading to increased LE and QALYs, combined mammography and breast magnetic resonance imaging (MRI) was less likely to be cost-effective than either mammography or MRI alone, particularly for women over 50 and BRCA2 carriers. Variation in patient compliance to risk management interventions was incorporated in 11/34 studies with the remaining analyses assuming 100% adherence. CONCLUSION: Prophylactic surgery and intensive breast screening are effective and cost-effective in models of BRCA carrier risk management. Findings were based predominantly on assuming perfect adherence to recommendations without assessment of the health-care resource use and costs related to engaging patients and maximizing compliance, meaning the real-world impact on clinical outcomes and resource use remains unclear. PMID- 29323670 TI - Response to Wald et al. PMID- 29323672 TI - Quantitative Raman microspectroscopy for water permeability parameters at a droplet interface bilayer. AB - Using confocal Raman microspectroscopy, we derive parameters for bilayer water transport across an isolated nanoliter aqueous droplet pair. For a bilayer formed with two osmotically imbalanced and adherent nanoliter aqueous droplets in a surrounding oil solvent, a droplet interface bilayer (DIB), the water permeability coefficient across the lipid bilayer was determined from monitoring the Raman scattering from the C[triple bond, length as m-dash]N stretching mode of K3Fe(CN)6 as a measure of water uptake into the swelling droplet of a DIB pair. We also derive passive diffusional permeability coefficient for D2O transport across a droplet bilayer using O-D Raman signal. This method provides a significant methodological advance in determining water permeability coefficients in a convenient and reliable way. PMID- 29323673 TI - Realization of toroidal magnetic moments in heterometallic 3d-4f metallocycles. AB - Toroidal arrangements of magnetic moments are realized in heterometallic Ln6Cu6 (Ln = Tb and Dy) macrocycles thanks to the magnetic coupling between lanthanide and 3d metal ions. PMID- 29323675 TI - A systematic examination of classical and multi-center bonding in heteroborane clusters. AB - This paper presents a systematic study of multicenter and classical bonding on a broad series of experimentally known heteroboranes covering closo, nido, arachno and hypho types of cages with incorporated tetrel, pnictogen or chalcogen heterovertices up to the third-row elements. The nature of bonding is studied using a novel quantum-chemical tool, the intrinsic atomic/bond orbital (IAO/IBO) approach, which provides a direct connection between quantum chemistry and chemical concepts. We also discuss how the computed IBO properties are related to molecular observables such as interatomic distances, molecular electrostatic potential surfaces and dipole moments. PMID- 29323674 TI - Can 5-methylcytosine analogues with extended alkyl side chains guide DNA methylation? AB - 5-Methylcytosine (MeC) is an endogenous modification of DNA that plays a crucial role in DNA-protein interactions, chromatin structure, epigenetic regulation, and DNA repair. MeC is produced via enzymatic methylation of the C-5 position of cytosine by DNA-methyltransferases (DNMT) which use S-adenosylmethionine (SAM) as a cofactor. Hemimethylated CG dinucleotides generated as a result of DNA replication are specifically recognized and methylated by maintenance DNA methyltransferase 1 (DNMT1). The accuracy of DNMT1-mediated methylation is essential for preserving tissue-specific DNA methylation and thus gene expression patterns. In the present study, we synthesized DNA duplexes containing MeC analogues with modified C-5 side chains and examined their ability to guide cytosine methylation by the human DNMT1 protein. We found that the ability of 5 alkylcytosines to direct cytosine methylation decreased with increased alkyl chain length and rigidity (methyl > ethyl > propyl ~ vinyl). Molecular modeling studies indicated that this loss of activity may be caused by the distorted geometry of the DNA-protein complex in the presence of unnatural alkylcytosines. PMID- 29323671 TI - Neurobiology of social behavior abnormalities in autism and Williams syndrome. AB - Social behavior is a basic behavior mediated by multiple brain regions and neural circuits, and is crucial for the survival and development of animals and humans. Two neuropsychiatric disorders that have prominent social behavior abnormalities are autism spectrum disorders (ASD), which is characterized mainly by hyposociability, and Williams syndrome (WS), whose subjects exhibit hypersociability. Here we review the unique properties of social behavior in ASD and WS, and discuss the major theories in social behavior in the context of these disorders. We conclude with a discussion of the research questions needing further exploration to enhance our understanding of social behavior abnormalities. PMID- 29323676 TI - Facile construction of organometallic rotaxane-terminated dendrimers using neutral platinum-acetylides as the main scaffold. AB - We present the successful construction of a new family of organometallic rotaxane terminated dendrimers using neutral platinum-acetylides as the main scaffold. The fourth generation dendrimer has 24 rotaxane moieties on the surface termini in a monodisperse manner. PMID- 29323677 TI - Displacement of carbonates in Ca2UO2(CO3)3 by amidoxime-based ligands from free energy simulations. AB - Amidoxime-based ligands are effective in uranium extraction by displacing carbonates in Ca2UO2(CO3)3, the dominant uranyl species in seawater. However, a detailed understanding of the displacement process has been lacking. Here we use classical molecular dynamics combined with umbrella sampling to map the complete displacement process and the free-energy profiles by the simple acetamidoximate (AO-) and the more complex glutardiamidoximate (B2- and HB-) ligands. Interestingly, we find that the two Ca2+ ions in Ca2UO2(CO3)3 can greatly facilitate the displacement of the first two carbonate groups. Displacing the third carbonate is however significantly more uphill than the first two. With the help of an additional Ca2+ ion, the third carbonate displacement can be made less uphill. Comparing AO- and B2-/HB- ligands, we find that the displacement by the latter is thermodynamically more favorable due to the chelate effect. Our free energy simulations based on classical molecular dynamics simulations reveal key atomistic details and quantify the thermodynamic driving force during the carbonate displacement of Ca2UO2(CO3)3 by amidoxime-based ligands. These findings will be useful in understanding seawater uranium extraction by amidoxime-grafted polymeric sorbents. PMID- 29323678 TI - Catalytic nucleophilic 'umpoled' pi-allyl reagents. AB - After seminal Tsuji-Trost reactions (palladium catalyzed allylation of nucleophiles via pi-allyl intermediates as electrophiles), the idea of reversal reactivity of pi-allyl intermediates (i.e. pi-allyl as nucleophiles) has been stated since the eighties. Thanks to different transition metal sources and the modification of their electronic environment through the use of additives and ligands, such 'reactivity switch' of pi-allyl intermediates proved its powerfulness allowing high control in regio-, diastereo- and enantio selectivities. These methodologies have thus emerged as efficient methods in the catalytic enantioselective allylation of carbonyl compounds and imines with a deep impact on natural product and/or drug elaboration. This tutorial review highlights the concept of 'umpoled' reactivity of pi-allyl intermediates, relying on selected recent examples. PMID- 29323679 TI - Reaction-based fluorescent probe for the selective and sensitive detection of thiophenols with a large Stokes shift and its application in water samples. AB - Although widely used in organic synthesis, pharmaceuticals and agrochemicals, thiophenol has brought about a series of ecological problems due to its high toxicity. Therefore, the development of efficient methods to discriminate thiophenols from aliphatic thiols is of great importance. In this work, a new reaction-based turn-on red fluorescence probe for the detection of thiophenols has been developed for the first time by employing dicyanomethylene-4H-pyran (DCM) as a fluorescence reporter and 2,4-dinitrobenzene-sulfonate (DNBS) as a recognition unit. The probe displayed a highly selective and sensitive (63 fold fluorescence enhancement) response to thiophenols over aliphatic thiols. Additionally, the probe also exhibited a large Stokes shift (159 nm) and the detection limit reached as low as 8.3 nM. Moreover, this probe was also proved suitable for the quantification of thiophenol in real environmental water samples. PMID- 29323680 TI - Controlling orthogonal self-assembly through cis-trans isomerization of a non covalent palladium complex dimer. AB - The trans-configured square-planar complex of dichloropalladium and chiral monodentate phosphine ligands forms self-complementary dimers through 16 hydrogen bonded amides and pi-pi stacking in chlorinated solvents. The self-assembly is controlled by cis-trans isomerisation of the metal center, where the trans configuration governs the dimer formation. PMID- 29323681 TI - The structure of a lanthanide complex at an extractant/water interface studied using heterodyne-detected vibrational sum frequency generation. AB - Solvent extraction plays an integral part in the separation and purification of metals. Because extractants generally used as complexing agents for metal extractions, such as di-(2-ethylhexyl)phosphoric acid (HDEHP) for lanthanide extractions, are amphiphilic, they come to an organic/water interface, and the interface plays a crucial role as the site of the formation of metal complexes and the subsequent transfer reaction to an organic phase. Despite the importance of the interface for metal solvent extractions, its molecular-level structure is unclear because of the experimental difficulties. Here we studied the structure of a trivalent europium (Eu3+) complex with HDEHP formed at the HDEHP monolayer/water interface using heterodyne-detected vibrational sum frequency generation (HD-VSFG) spectroscopy. The study on the HDEHP/water interface enables us to investigate the structure of the interfacial Eu3+ complex by excluding the migration of Eu3+ into an organic phase after the complex formation at the interface. The interface-selective vibrational Imchi(2) spectra observed using HD VSFG of the interface of HDEHP/aqueous Eu(NO3)3 solution in the 2800-3500 cm-1 region indicate that Eu3+ at the HDEHP/water interface is bonded by HDEHP from the air side and by water molecules from the water side. To the best of our knowledge, such metal complex structures have not been identified in organic or water solutions. PMID- 29323682 TI - Two polymorphic Co(ii) field-induced single-ion magnets with enormous angular distortion from the ideal octahedron. AB - A mononuclear complex [Co(neo)(PhCOO)2,], neo = neocuproine, PhCOO- = the benzoate anion, was prepared in two polymorph forms crystallizing in the C2/c, (1) and P21/c, (2) space groups. The polymorphs differ in the Co-O bond lengths and the level of trigonal distortion of their coordination polyhedra. The static and dynamic magnetic properties of these compounds were thoroughly studied by experimental (magnetometry) and theoretical (ab initio calculations) methods. The analysis of magnetic data was performed using the spin Hamiltonian formalism or the L-S model considering also the orbital angular momentum. It was revealed that both polymorphs possess a very large magnetic anisotropy with a pronounced rhombic character leading to the separation of the Kramers doublets larger than 120 cm-1. The measurements of alternating current susceptibility revealed that both polymorphs behave as field induced single molecule magnets with a small barrier of spin reversal (U = 22.1 K (for 1) and 17.1 K (for 2)) which indicates that relaxation processes other than the thermally activated Orbach process take place. PMID- 29323684 TI - Maximizing the absorption of small cosolutes inside neutral hydrogels: steric exclusion versus hydrophobic adhesion. AB - In this work the equilibrium absorption of nanometric cosolutes (which could represent drugs, reactants, small globular proteins and other kind of biomacromolecules) inside neutral hydrogels is studied. We specially focus on exploring, for different swelling states, the competition between the steric exclusion induced by the cross-linked polymer network constituting the hydrogel, and the solvent-induced short-range hydrophobic attraction between the polymer chains and the cosolute particle. For this purpose, the cosolute partition coefficient is calculated by means of coarse-grained grand canonical Monte Carlo simulations, and the results are compared to theoretical predictions based on the calculation of the excluded and binding volume around the polymer chains. For small hydrophobic attractions or large cosolute sizes, the steric repulsion dominates, and the partition coefficient decreases monotonically with the polymer volume fraction, phim. However, for large enough hydrophobic attraction strength, the interplay between hydrophobic adhesion and the steric exclusion leads to a maximum in the partition coefficient at certain intermediate polymer density. Good qualitative and quantitative agreement is achieved between simulation results and theoretical predictions in the limit of small phim, pointing out the importance of geometrical aspects of the cross-linked polymer network, even for hydrogels in the swollen state. In addition, the theory is able to predict analytically the onset of the maximum formation in terms of the details of the cosolute-monomer pair interaction, in good agreement with simulations too. Finally, the effect of the many-body attractions between the cosolute and multiple polymer chains is quantified. The results clearly show that these many body attractions play a very relevant role determining the cosolute binding, enhancing its absorption in more than one order of magnitude. PMID- 29323685 TI - Coarsening dynamics of ferromagnetic granular networks-experimental results and simulations. AB - We investigate the phase separation of a shaken mixture of glass and magnetised steel spheres after a sudden quench of the shaker amplitude. After quenching, transient networks of steel spheres emerge in the experiment. For the developing network clusters we estimate the number of spheres in them, and the characteristic path lengths. We find that both quantities follow a log-normal distribution function. Moreover, we study the temporal evolution of the networks. In the sequence of snapshots we observe an initial regime, where the network incubates, followed by a temporal regime where network structures are elongated and broken, and finally a regime where the structures have relaxed to compact clusters of rounded shapes. This phaenomenology resembles the initial, elastic and hydrodynamic regimes observed by H. Tanaka [J. Phys.: Condens. Matter, 2000, 12, R207] during the viscoelastic phase separation for dynamically asymmetric mixtures of polymers. In order to discriminate the three regimes we investigate in the experiment order parameters like the mean number of neighbors and the efficiency of the networks. In order to capture the origin for a viscoelastic phase separation in our granular mixture, we use a simple simulation approach. Not aiming at a quantitative description of the experimental results, we rather use the simulations to define the key interactions in the experimental system. This way, we discover that along with dipolar and steric interactions, there is an effective central attraction between the magnetised spheres that is responsible for the coarsening dynamics. Our simulations show as well three regimes in the evolution of characteristic order parameters. PMID- 29323686 TI - Negative Poisson's ratio and high-mobility transport anisotropy in SiC6 siligraphene. AB - The diverse forms of silicon carbides lead to versatile properties, but an auxetic allotrope at zero pressure has never been reported. Here, using first principles calculations we propose a two-dimensional (2D) auxetic silicon carbide material, namely SiC6 siligraphene. The plausibility of the SiC6 siligraphene is verified by the low formation energy, positive phonon spectrum and high mechanical stability. The unique framework of sp2 carbon and sp3 silicon atoms leads to unusual in-plane negative Poisson's ratios and electronic properties superior to both graphene and silicene. SiC6 siligraphene possesses a natural band gap of 0.73 eV and a high carrier mobility. The theoretical mobility in the order of 104 cm2 V-1 s-1 for electrons along the [1[combining macron]10] direction is comparable to the hole mobility in black phosphorene, whereas the hole transport along the [110] direction is blocked. Both the electronic band structure and carrier mobility of the SiC6 siligraphene can be tuned by applying external strain. A possible synthetic route is also proposed. The exotic properties make SiC6 siligraphene a versatile and promising 2D material for applications in nanomechanics and nanoelectronics. PMID- 29323683 TI - Ru(ii) polypyridyl complexes as photocages for bioactive compounds containing nitriles and aromatic heterocycles. AB - Photocaging allows for precise spatiotemporal control over the release of biologically active compounds with light. Most photocaged molecules employ organic photolabile protecting groups; however, biologically active compounds often contain functionalities such as nitriles and aromatic heterocycles that cannot be caged with organic groups. Despite their prevalence, only a few studies have reported successful caging of nitriles and aromatic heterocycles. Recently, Ru(ii)-based photocaging has emerged as a powerful method for the release of bioactive molecules containing these functional groups, in many cases providing high levels of spatial and temporal control over biological activity. This Feature Article discusses recent developments in applying Ru(ii)-based photocaging towards biological problems. Our groups designed and synthesized Ru(ii)-based platforms for the photoinduced delivery of cysteine protease and cytochrome P450 inhibitors in order to achieve selective control over enzyme inhibition. We also reported Ru(ii) photocaging groups derived from higher denticity ancillary ligands that possess photophysical and photochemical properties distinct from more traditional Ru(ii)-based caging groups. In addition, for the first time, we are able to rapidly synthesize and screen Ru(ii) polypyridyl complexes that elicit desired properties by solid-phase synthesis. Finally, our work also defined steric and orbital mixing effects that are important factors in controlling photoinduced ligand exchange. PMID- 29323688 TI - Preventing HIV Infection-What Pediatricians Should Know About HIV Pre-Exposure Prophylaxis. AB - I recently diagnosed my first adolescent patient with new-onset HIV. As a primary care pediatrician, these cases are rare. I cried with the shock of the initial diagnosis, just as the patient did when I told him. One of my first thoughts was how could I have served him better. He had been inconsistent with condom use, and had several partners. I had encouraged safe sex practices, told him to talk to his partners about pregnancy prevention, and screened for sexually transmitted disease nearly every time he came into my office. However, there was one more thing I could have done that may have spared him this diagnosis in the first place. I could have prescribed HIV Pre-Exposure Prophylaxis (PrEP). This article is meant to introduce primary care pediatricians to the idea of HIV PrEP. The article reviews patient eligibility, how to prescribe HIV PrEP, as well as drug monitoring and follow-up. [Pediatr Ann. 2018;47(1):e2-e4.]. PMID- 29323689 TI - Pediatric Endocrinology. PMID- 29323690 TI - Premature Adrenarche. AB - Adrenarche is when a child's adrenal cortex starts to secrete adrenal androgen precursors. Dehydroepiandrosterone (DHEA) is the most abundant product of the adrenal cortex, and is a weak androgen agonist thought to be responsible for the clinical signs of pubarche by conversion to more potent androgens, testosterone, and dihydrotestosterone. DHEA's extra-adrenal sulfation product, dehydroepiandrosterone sulfate, is a stable marker for adrenal androgenic activity. Pubarche is the physical manifestation of androgenic hormone production, and includes the development of pubic and axillary hair, adult body odor, and acne. This stage is usually considered premature if it commences before age 8 years in girls or age 9 years in boys. Premature adrenarche is a diagnosis of exclusion, as true centrally mediated precocious puberty, congenital adrenal hyperplasia, exogenous androgen exposure, and androgen-secreting tumors must be ruled out. Premature adrenarche may be associated with a history of an infant who was small for gestational age at birth who then gained weight rapidly thereafter or became obese. In some instances, premature adrenarche may predict functional ovarian hyperandrogenism in adolescence. Management of premature adrenarche is largely aimed at observation, lifestyle adjustments for weight concerns, and monitoring for future possible persistent androgen excess and insulin resistance. [Pediatr Ann. 2018;47(1):e7-e11.]. PMID- 29323691 TI - Premature Thelarche. AB - Premature thelarche is a benign condition that affects young girls and may be interpreted as a sign of central precocious puberty (CPP). Parental concern is common when breast development is noted in a young girl. It is important to differentiate premature thelarche from CPP, as the latter is a more serious disorder that may affect final adult height and menarcheal age, and may have psychological implications as well. Distinguishing between the two conditions clinically may help the patients avoid unnecessary testing. Pediatricians can play a pivotal role by providing reassurance to families and helping alleviate parental anxiety. This article reviews the clinical presentation of premature thelarche, its usual course, and implications. [Pediatr Ann. 2018;47(1):e12 e15.]. PMID- 29323692 TI - Delayed Puberty. AB - Delayed puberty is defined as the absence of physical signs of puberty 2 to 2.5 standard deviations above the mean age and affects approximately 2% of adolescents. Causes of delayed puberty are broadly divided into two categories: hypergonadotropic hypogonadism and hypogonadotropic hypogonadism. One exception to this classification system is constitutional delay of growth and puberty, the most common cause of delayed puberty. For the general pediatrician, knowledge of the different causes and initial steps to evaluation is crucial when a patient with delayed puberty presents. [Pediatr Ann. 2018;47(1):e16-e22.]. PMID- 29323693 TI - Menstrual Irregularities. AB - Irregular menstrual cycles are a common complaint among adolescents. There are multiple etiologies for menstrual irregularities. It is important to have a stepwise approach, including obtaining a thorough medical history and performing a physical examination, when patients present. Understanding the characteristics of the menstrual cycle helps determine the etiology. This article discusses the differential diagnosis of irregular menstrual cycles, as well as the approach to evaluation and management. The common conditions and defining characteristics are also discussed. [Pediatr Ann. 2018;47(1):e23-e28.]. PMID- 29323694 TI - The Short Child. AB - Growth is one of the most important characteristics of human development. This process occurs from the moment of conception through the final stages of puberty. There are multiple factors that contribute to growth in humans. Although it may seem complex, a pediatrician should note that growth can be fairly predictable. The advantage to predictable changes in growth is that clinicians should be able to promptly detect any deviation and evaluate it in a timely manner. One of the most helpful tools to assess changes in growth is the use of a growth chart. This article provides the clinician with the necessary tools to identify growth abnormalities, investigate appropriately to arrive at an accurate diagnosis, and either treat or, when indicated, provide a timely referral to a pediatric endocrinologist. [Pediatr Ann. 2018;47(1):e29-e35.]. PMID- 29323695 TI - Lead Toxicity in the Pediatric Patient with Sickle Cell Disease: Unique Risks and Management. AB - Lead toxicity is the result of lead ingestion, one of the most common ingestions in the pediatric population. Nationwide and statewide efforts to recognize and curtail this epidemic have led to declining rates of toxicity. In patients with sickle cell disease (SCD), lead toxicity can be an elusive diagnosis due to overlapping symptom profiles, and inconsistent follow-up with a primary care physician can make the diagnosis even more difficult. In this article, two illustrative cases of lead toxicity in patients with SCD are described. The discussion reviews the current risk factors, screening, and inpatient management of lead toxicity, as well as describing the unique and sometimes confounding presentations of lead toxicity versus sickle cell crisis. [Pediatr Ann. 2018;47(1):e36-e40.]. PMID- 29323698 TI - XIST accelerates neuropathic pain progression through regulation of miR-150 and ZEB1 in CCI rat models. AB - LncRNAs are reported to participate in neuropathic pain development. LncRNA X inactive specific transcript (XIST) is involved in the progression of various cancers. However, the role of XIST in neuropathic pain remains unclear. In our present study, we established a chronic constriction injury (CCI) rat model and XIST was found to be greatly upregulated both in the spinal cord tissues and in the isolated microglias of CCI rats. Inhibition of XIST inhibited neuropathic pain behaviors including mechanical and thermal hyperalgesia. Moreover, decrease of XIST repressed neuroinflammation through inhibiting COX-2, tumor necrosis factor (TNF)-alpha and IL-6 and in CCI rats. Previously, miR-150 has been reported to restrain neuropathic pain by targeting TLR5. Currently, miR-150 was predicted to be a microRNA target of XIST, which indicated a negative correlation between miR-150 and XIST. miR-150 was remarkably decreased in CCI rats and overexpression of miR-150 can significantly suppress neuroinflammation-related cytokines. Furthermore, ZEB1 was exhibited to be a direct target of miR-150 and we found it was overexpressed in CCI rats. Silencing ZEB1 was able to inhibit neuropathic pain in vivo and downreguation of XIST decreased ZEB1, which can be reversed by miR-150 inhibitors. Taken these together, we indicated that XIST can induce neuropathic pain development in CCI rats via upregulating ZEB1 by acting as a sponge of miR-150. It was revealed that XIST/miR-150/ZEB1 axis can be provided as a therapeutic target in neuropathic pain. PMID- 29323697 TI - Identification of a novel botulinum neurotoxin gene cluster in Enterococcus. AB - The deadly neurotoxins of Clostridium botulinum (BoNTs) comprise eight serotypes (A-G; X). The neurotoxin gene cluster encoding BoNT and its accessory proteins includes an operon containing an ntnh gene upstream of the boNT gene. Another operon contains either ha (haemagglutinin) or orfX genes (of unknown function). Here we describe a novel boNT gene cluster from Enterococcus sp. 3G1_DIV0629, with a typical ntnh gene and an uncommon orfX arrangement. The neurotoxin (designated putative eBoNT/J) contains a metallopeptidase zinc-binding site, a translocation domain and a target cell attachment domain. Structural properties of the latter suggest a novel targeting mechanism with consequent implications for application by the pharmaceutical industry. This is the first complete boNT gene cluster identified in a non-clostridial genome. PMID- 29323696 TI - Regulation of neuronal development and function by ROS. AB - Reactive oxygen species (ROS) have long been studied as destructive agents in the context of nervous system ageing, disease and degeneration. Their roles as signalling molecules under normal physiological conditions is less well understood. Recent studies have provided ample evidence of ROS-regulating neuronal development and function, from the establishment of neuronal polarity to growth cone pathfinding; from the regulation of connectivity and synaptic transmission to the tuning of neuronal networks. Appreciation of the varied processes that are subject to regulation by ROS might help us understand how changes in ROS metabolism and buffering could progressively impact on neuronal networks with age and disease. PMID- 29323699 TI - Leukotriene B4 receptor 2 regulates the proliferation, migration, and barrier integrity of bronchial epithelial cells. AB - The airway epithelium plays a crucial role in the pathogenesis of asthma. The functions of leukotriene B4 receptor 2 (BLT2) on the airway epithelial cells remains unknown. In our study, BLT2 expression in 16HBE bronchial epithelial cells were manipulated by transfection with BLT2 overexpression plasmid or BLT2 small interference RNA. 16HBE cells were then exposed to BLT2 antagonist (LY255283) or BLT2 agonist (12(S)-hydroxyheptadeca-5Z,8E,10E-trienoic acid [12 HHT] or CAY10583). The results showed that BLT2 overexpression, 12-HHT stimulation, or CAY10583 treatment resulted in the enhanced proliferation and migration of 16HBE cells. In addition, BLT2 showed an inhibitory effect on epithelial permeability as illustrated by the measurement of transepithelial electrical resistance (TER) and epithelial permeability, and a promoting effect on the levels of tight junction proteins (occludin and claudin-4) and phosphorylated p38 as demonstrated by real-time PCR and Western blotting analyses. These results suggest BLT2 as a key determinant of airway epithelial barrier integrity. On the contrary, RNAi-mediated knockdown or LY255283 treatment had reversed effects on the proliferation, migration, and epithelial barrier integrity. Together, our findings suggest the critical roles of BLT2 on the functions of bronchial epithelial cells and that BLT2 agonists are potential therapeutic agents for asthma treatment. PMID- 29323700 TI - Heat shock protein (Hsp) regulation by muscarinic acetylcholine receptor (mAChR) activation in the rat hippocampus. AB - The cholinergic system plays a crucial role in modulating in the central nervous system physiological responses such as neurogenesis, neuronal differentiation, synaptic plasticity, and neuroprotection. In a recent study, we showed that Oxotremorine-M, a non-selective muscarinic acetylcholine receptor agonist, is able to transactivate the fibroblast growth factor receptor and to produce a significant increase in the hippocampal primary neurite outgrowth. In the present study we aimed to explore in the rat hippocampus the possible effect of acute or chronic treatment with Oxotremorine-M on some heat shock proteins (Hsp60, Hsp70, Hsp90) and on activation of related transcription factor heat shock factor 1 (HSF1). Following single injection of Oxotremorine-M (0.4 mg/kg) all Hsps examined were significantly increased in at least one of the time points studied (24, 48, and 72 hr). Treatment with Oxotremorine-M significantly increased the level of phosphorylated HSF1 in all time points studied, without change of protein levels. Similar pattern of Hsps changes was obtained following chronic Oxotremorine-M treatment (0.2 mg/kg) for 5 days. Surprisingly, following chronic treatment for 10 days no changes were observed in Hsps. The muscarinic acetylcholine receptor antagonist scopolamine (1 mg/kg) was able to completely block Oxotremorine-M effects on Hsps. In conclusion, considering the function of Hsps in protecting neuronal cells from deleterious proteotoxic stress, for example, protein mis-folding and aggregation, the results obtained indicate that muscarinic acetylcholine receptor activation may have implications in potential treatment of neurodegenerative disorders linked to protein aggregation, such as Alzheimer disease. PMID- 29323701 TI - Positive diversity-functioning relationships in model communities of methanotrophic bacteria. AB - Biodiversity enhances ecosystem functions such as biomass production and nutrient cycling. Although the majority of the terrestrial biodiversity is hidden in soils, very little is known about the importance of the diversity of microbial communities for soil functioning. Here, we tested effects of biodiversity on the functioning of methanotrophs, a specialized group of soil bacteria that plays a key role in mediating greenhouse gas emissions from soils. Using pure strains of methanotrophic bacteria, we assembled artificial communities of different diversity levels, with which we inoculated sterile soil microcosms. To assess the functioning of these communities, we measured methane oxidation by gas chromatography throughout the experiment and determined changes in community composition and community size at several time points by quantitative PCR and sequencing. We demonstrate that microbial diversity had a positive overyielding effect on methane oxidation, in particular at the beginning of the experiment. This higher assimilation of CH4 at high diversity translated into increased growth and significantly larger communities towards the end of the study. The overyielding of mixtures with respect to CH4 consumption and community size were positively correlated. The temporal CH4 consumption profiles of strain monocultures differed, raising the possibility that temporal complementarity of component strains drove the observed community-level strain richness effects; however, the community niche metric we derived from the temporal activity profiles did not explain the observed strain richness effect. The strain richness effect also was unrelated to both the phylogenetic and functional trait diversity of mixed communities. Overall, our results suggest that positive biodiversity ecosystem-function relationships show similar patterns across different scales and may be widespread in nature. Additionally, biodiversity is probably also important in natural methanotrophic communities for the ecosystem function methane oxidation. Therefore, maintaining soil conditions that support a high diversity of methanotrophs may help to reduce the emission of the greenhouse gas methane. PMID- 29323703 TI - Integrative omics analysis of p53-dependent regulation of metabolism. AB - Accumulated evidence in the last decade implies that regulation of metabolism by p53 represents a reviving mechanism vital to prevent tumorigenesis. To gain a more in-depth understanding of metabolic regulation by baseline levels of p53, we employed both metabolomics and transcriptomics analysis with human colon cancer cell-line HCT116 depleted of p53. Metabolomics analyses with UPLC/quadrupole time of-flight mass spectrometry identified 283 significantly changed metabolites including 138 important metabolites. Transcriptomics analysis with microarray revealed 1317 differentially expressed genes. By integrated analysis of both omics data, we found nucleotides metabolism and sulfur-related metabolism are of great importance. Our study provided a pilot comprehensive view of the metabolism regulated by p53 and suggests several potential p53 targets in metabolism for further study. PMID- 29323702 TI - Sirtuin 3 silencing improves oxaliplatin efficacy through acetylation of MnSOD in colon cancer. AB - Sirtuin 3 (SIRT3) is the major mitochondria deacetylase and regulates ROS levels by targeting several key proteins, such as those involved in mitochondrial function and antioxidant defenses. This way, SIRT3 balances ROS production and scavenging and promotes cell survival. The aim of this study was to analyze the effect of SIRT3 silencing on the antioxidant response in SW620 colon cancer cell line, and whether this intervention could improve efficacy of oxaliplatin, a common drug used to treat colon cancer. For this purpose, we obtained stable clones of SW620 with SIRT3 knockdown and determined parameters such as ROS levels and ROS production, levels of several antioxidant enzymes, cell viability, and apoptosis. Results showed that after SIRT3 silencing, both ROS levels and production were increased, and antioxidant enzymes gene expression was significantly reduced. Furthermore, manganese superoxide dismutase levels and enzymatic activity were reduced. Combination of SIRT3 knockdown with oxaliplatin treatment further increased ROS production and apoptosis, reducing cell viability. Finally, survival curves on colon cancer patients suggested that SIRT3 expression is related to a poorer prognosis. In conclusion, SIRT3 could be a target for colon cancer, since it regulates the antioxidant response and its knockdown improves the efficacy of oxaliplatin treatment. PMID- 29323704 TI - Reply to The Reply to the letter on the cost-effectiveness of human papillomavirus in Punjab further distorts the scientific record. PMID- 29323705 TI - The protective effects of distal ischemic treatment on apoptosis and mitochondrial permeability in the hippocampus after cardiopulmonary resuscitation. AB - Apoptosis and mitochondrial dysfunction are the main cause of neurological injury after cardiopulmonary resuscitation (CPR). However, the effects of distal ischemic treatments on ischemia induced apoptosis are rarely studied, and the mechanism by which mitochondrial dysfunction contributes to CPR still unclear. A rat model of distal ischemia was established by clipping the right femoral artery. Rats were divided into blank, model, pre distal ischemic treatment, per treatment, and post-treatment groups. Neurological deficit score was scored to evaluate neurologic function after cardiopulmonary resuscitation for 72 hr. We employed TUNEL and flow cytometry to measure the rate of apoptosis of hippocampal neurons, the integrity of mitochondrial membrane and the degree of mitochondrial permeability transition pore (mPTP) opening. The rate of apoptosis rate of hippocampal CA1 neurons in the pre-treatment and post-treatment groups were significantly lower than that of the model group. Moreover, the integrity of the mitochondrial membrane in the pre-treatment and post-treatment groups was higher than that in the model and per- treatment groups. Furthermore, the degree of mPTP opening was lower in the pre-treatment and post-treatment groups than the untreated and per-treatment groups. Taken together, our results show that ischemic preconditioning and post processing can maintain the integrity of mitochondria, perhaps by inhibiting the opening of mPTP, and reducing apoptosis of hippocampal neurons by regulating expression of apoptosis related proteins after CPR, to improve neurological function. This study highlights a novel target pathway for treatment of CPR. PMID- 29323706 TI - The origins and homeostasis of monocytes and tissue-resident macrophages in physiological situation. AB - Monocytes and macrophages are critical effectors and regulators of innate immune response. They not only play crucial and distinctive roles in homeostasis, but also contribute to some pathologic processes. The heterogeneity of the macrophage lineage has been widely recognized and, in part, is a result of the specialization of resident macrophages in particular tissue microenvironments. Monocytes are usually known to originate in the bone marrow from a common myeloid progenitor that is shared with neutrophils, and they are then released into the peripheral blood. However, the origin of tissue-resident macrophages, crucial for homeostasis and immunity, has remained controversial until recently. During embryonic organogenesis, macrophages derived from yolk sac and fetal liver precursors are seeded throughout tissues, persisting in the adulthood as resident, self-maintaining populations. After birth, bone marrow-derived monocytes can replenish tissue resident macrophages following injury, infection and inflammation. In this review, we will mainly summarize our current understanding on the origin, ontogeny and fates of tissue macrophages and will briefly discuss the molecular regulation of resident macrophage homeostasis in physiological situation. PMID- 29323707 TI - Ox-LDL induces endothelial cell apoptosis and macrophage migration by regulating caveolin-1 phosphorylation. AB - Oxidative low-density lipoprotein (ox-LDL) is a risk factor for atherosclerosis. Ox-LDL leads to endothelial injury in the initial stage of atherosclerosis. In this study, we investigated the role of ox-LDL in endothelial injury and macrophage recruitment. We demonstrated that ox-LDL promoted a dose-dependent phosphorylation of caveolin-1 in human umbilical vein endothelial cells. Phosphorylated caveolin-1 increased ox-LDL uptake. Intracellular accumulation of ox-LDL induced NF-kappaB p65 phosphorylation, promoted HMGB1 translocation from nucleus to cytoplasm and cytochrome C release from mitochondria to cytoplasm, and activated caspase 3, resulting in cell apoptosis. NF-kappaB activation also facilitated cavolin-1 phosphorylation and HMGB1 expression. In addition, caveolin 1 phosphorylation favored HMGB1 release and nuclear translocation of EGR1. Nuclear translocation of EGR1 contributed to cytoplasmic translocation of HMGB1. The extracellular HMGB1 induced the migration of PMBC-derived macrophages toward HUVECs in a TLR4-dependent manner. Our results suggested that ox-LDL promoted HUVECs apoptosis and macrophage recruitment by regulating caveolin-1 phosphorylation. PMID- 29323708 TI - MicroRNA501-5p induces p53 proteasome degradation through the activation of the mTOR/MDM2 pathway in ADPKD cells. AB - Cell proliferation and apoptosis are typical hallmarks of autosomal dominant polycystic kidney disease (ADPKD) and cause the development of kidney cysts that lead to end-stage renal disease (ESRD). Many factors, impaired by polycystin complex loss of function, may promote these biological processes, including cAMP, mTOR, and EGFR signaling pathways. In addition, microRNAs (miRs) may also regulate the ADPKD related signaling network and their dysregulation contributes to disease progression. However, the role of miRs in ADPKD pathogenesis has not been fully understood, but also the function of p53 is quite obscure, especially its regulatory contribution on cell proliferation and apoptosis. Here, we describe for the first time that miR501-5p, upregulated in ADPKD cells and tissues, induces the activation of mTOR kinase by PTEN and TSC1 gene repression. The increased activity of mTOR kinase enhances the expression of E3 ubiquitin ligase MDM2 that in turn promotes p53 ubiquitination, leading to its degradation by proteasome machinery in a network involving p70S6K. Moreover, the overexpression of miR501-5p stimulates cell proliferation in kidney cells by the inhibition of p53 function in a mechanism driven by mTOR signaling. In fact, the downregulation of this miR as well as the pharmacological treatment with proteasome and mTOR inhibitors in ADPKD cells reduces cell growth by the activation of apoptosis. Consequently, the stimulation of cell death in ADPKD cells may occur through the inhibition of mTOR/MDM2 signaling and the restoring of p53 function. The data presented here confirm that the impaired mTOR signaling plays an important role in ADPKD. PMID- 29323709 TI - Osteosarcoma-derived extracellular vesicles induce a tumor-like phenotype in normal recipient cells. AB - Osteosarcoma is the most common primary bone cancer and the most frequent cause of bone cancer-related deaths in children and adolescents. Osteosarcoma cells are able to establish a crosstalk with resident bone cells leading to the formation of a deleterious vicious cycle. We hypothesized that osteosarcoma cells can release, in the bone microenvironment, transforming Extracellular Vesicles (EVs) involved in regulating bone cell proliferation and differentiation, thereby promoting tumor growth. We assessed EV production by three osteosarcoma cell lines with increasing aggressiveness in order to investigate their roles in the communication between osteosarcoma cells and normal recipient cells. Osteosarcoma derived EVs were used to treat the murine fibroblast cell line NIH3T3 and to study the induction of tumor-like phenotypes. Our results showed that osteosarcoma cell lines are able to produce EVs that fuse to recipient cells, with a very high uptake efficiency. The treatment of recipient NIH3T3 with osteosarcoma-derived EVs induced substantial biological and functional effects, as an enhanced proliferation and survival capability under starved conditions, high levels of activated survival pathways, an increased migration, adhesion, and 3D sphere formation and the acquired capability to grow in an anchorage independent manner. Moreover, in murine NIH3T3 we found human mRNAs of TNF-alpha, IL-6, and TGF-beta, as well as a de novo expression of murine MMP-9 and TNF-alpha following the treatment of human osteosarcoma-derived EVs. PMID- 29323710 TI - Blocking PI3K/AKT signaling inhibits bone sclerosis in subchondral bone and attenuates post-traumatic osteoarthritis. AB - PI3K/AKT signaling is essential in regulating pathophysiology of osteoarthritis (OA). However, its potential modulatory role in early OA progression has not been investigated yet. Here, a mouse destabilization OA model in the tibia was used to investigate roles of PI3K/AKT signaling in the early subchondral bone changes and OA pathological process. We revealed a significant increase in PI3K/AKT signaling activation which was associated with aberrant bone formation in tibial subchondral bone following destabilizing the medial meniscus (DMM), which was effectively prevented by treatment with PI3K/AKT signaling inhibitor LY294002. PI3K/AKT signaling inhibition attenuated articular cartilage degeneration. Serum and bone biochemical analyses revealed increased levels of MMP-13, which was found expressed mainly by osteoblastic cells in subchondral bone. However, this MMP-13 induction was attenuated by LY294002 treatment. Furthermore, PI3K/AKT signaling was found to enhance preosteoblast proliferation, differentiation, and expression of MMP-13 by activating NF-kappaB pathway. In conclusion, inhibition of PI3K/AKT/NF-kappaB axis was able to prevent aberrant bone formation and attenuate cartilage degeneration in OA mice. PMID- 29323711 TI - HIV-1 increases extracellular amyloid-beta levels through neprilysin regulation in primary cultures of human astrocytes. AB - Since the success of combined antiretroviral therapy, HIV-1-infected individuals are now living much longer. This increased life expectancy is accompanied by a higher prevalence of HIV-1 associated neurocognitive disorders. Rising too is the incidence in these patients of pathological hallmarks of Alzheimer's disease such as increased deposition of amyloid beta protein (Abeta). Although neurons are major sources of Abeta in the brain, astrocytes are the most numerous glial cells, therefore, even a small level of astrocytic Abeta metabolism could make a significant contribution to brain pathology. Neprilysin (NEP) is a decisive/crucial regulator of Abeta levels. We evaluated the effects of HIV-1 on Abeta deposition and the expression and activity of NEP in primary human astrocytes. Specifically, no differences in intracellular amyloid deposits were found between infected and control cells. However, primary cultures of infected astrocytes showed more extracellular Abeta levels compared to controls. This was accompanied by reduced expression of NEP and to a significant decrease on its activity. These results indicate that the presence of HIV-1 in the brain could contribute to the increase of the total burden of cerebral Abeta. This article is protected by copyright. All rights reserved. PMID- 29323712 TI - Paradoxical side effects of bisphosphonates on the skeleton: What do we know and what can we do? AB - Bisphosphonates are considered the most effective drugs for controlling adult and pediatric osteolytic diseases. Although they have been used successfully for many years, several side effects, such as osteonecrosis of the jaw, delayed dental eruption, atypical femoral fracture, and alterations to the bone growth system, have been described. After an overview of nitrogenous bisphosphonate, the purpose of this article is to describe their mechanisms of action and current applications, review the preclinical and clinical evidence of their side effects in the skeleton ("what we know"), and describe current recommendations for preventing and managing these effects ("what we can do"). Finally, promising future directions on how to limit the occurrence of these side effects will be presented. PMID- 29323713 TI - NEAT1 contributes to breast cancer progression through modulating miR-448 and ZEB1. AB - Breast cancer is a kind of common female cancers. Increasing evidence has exhibited that lncRNAs exert a crucial role in breast cancer. So far, the mechanism of lncRNAs in breast cancer is still not well established. In our current study, we focused on the biological role of lncRNA Nuclear Enriched Abundant Transcript 1 (NEAT1) in breast cancer. We observed that NEAT1 levels were significantly increased in human breast cancer cells including MCF-7, MDA-MB 453, MDA-MB-231, and SKBR3 cells compared to normal mammary epithelial cells MCF 10A while miR-448 was decreased. We found that downregulation of NEAT1 was able to inhibit the growth of breast cancer cells and miR-448 mimic exerted the similar function. Bioinformatics analysis and dual luciferase reporter assays confirmed the negative correlation between NEAT1 and miR-448 in vitro. In addition, ZEB1 was predicted as a novel mRNA target of miR-448. Overexpression of NEAT1 can induce breast cancer cell growth, migration, and invasion by inhibiting miR-448 and upregulating ZEB1. It was demonstrated that NEAT1 can increase ZEB1 levels while miR-448 mimic can repress ZEB1. It was speculated in our study that NEAT1 can serve as a competing endogenous lncRNA (ceRNA) to modulate ZEB1 by sponging miR-448 in breast cancer. To conclude, we uncovered that NEAT1 participated in breast cancer progression by regulating miR-448 and ZEB1. NEAT1 can be provided as a vital biomarker in breast cancer diagnosis and treatment therapy. PMID- 29323714 TI - A new gold standard approach to characterize the transport of Si across cell membranes in animals. AB - Silicon (Si) is increasingly recognized as an essential trace element in animals, especially since the identification of mammalian Si transport systems and Si responsive genes not long ago. During many years, however, efforts to gain substantial insight into the biological role of this element in animals have achieved partial success due in part to the unavailability of validated protocols to study Si movement across biological membranes. To circumvent such limitations, we have developed a general transport assay in which cellular Si content was determined by automated electrothermal atomic absorption spectrophotometry. We have found this assay to provide great analytic sensitivity with Si detection thresholds of less than 1 uM, that is, below or very close to the concentration range of animal cells. We have also found this assay to provide valid and cost effective determinations in Si transport studies while requiring workable quantities of samples. The protocol described here should thus become gold standard toward accelerated progress in the field of Si transport. PMID- 29323715 TI - Alleviation of palmitic acid-induced endoplasmic reticulum stress by augmenter of liver regeneration through IP3R-controlled Ca2+ release. AB - The aberrant release of Ca2+ from the endoplasmic reticulum (ER) contributes to the onset of ER stress, which is closely related to the pathogenesis of non alcoholic fatty liver disease. We previously reported that augmenter of liver regeneration (ALR) alleviates ER stress and protects hepatocytes from lipotoxicity. However, the link between ALR protection and the suppression of ER stress remains unclear. In this study, we investigated whether the protection against liver steatosis afforded by ALR is related to its inhibition of calcium overflow from the ER to the mitochondria. The treatment of HepG2 cells with palmitic acid (PA) upregulated IP3R expression, triggering ER-luminal Ca2+ release and inducing ER stress. However, in ALR-transfected (ALR-Tx) HepG2 cells, PA-induced cell injury was clearly alleviated compared with that in vector-Tx cells. After exposure to PA, IP3R expression was downregulated and ER stress was effectively inhibited in the ALR-Tx cells, and ER-Ca2+ release and simultaneous mitochondrial Ca2+ uptake were lower than those in vector-Tx cells. The knockdown of ALR expression with shRNA abolished the protective effects afforded by ALR transfection. PA treatment also suppressed the interaction between BCL-2 and IP3R in HepG2 cells, whereas this interaction was massively enhanced in the ALR-Tx cells, effectively reducing the IP3R-mediated ER-Ca2+ release and thus mitochondrial Ca2+ influx. Our results suggest that the inhibition of ER stress by ALR is related to the interruption of the interaction between BCL2 and IP3R, demonstrating a novel mechanism of ER stress resistance in ALR-Tx cells. PMID- 29323716 TI - Oxidative burden in familial hypercholesterolemia. AB - Familial hypercholesterolemia (FH) is a genetic disorder characterized by high serum levels of low-density lipoprotein cholesterol (LDL-c). FH is characterized by accelerated development of atherosclerosis and represents the most frequent hereditary cause of premature coronary heart disease. Mutations of the LDL receptor gene are the genetic signature of FH, resulting in abnormal levels of circulating LDLs. Moreover, FH promotes the generation of reactive oxygen species (ROS) which is another key mechanism involved in atherosclerosis development and progression. The aim of this narrative review is to update the current knowledge on the pathophysiological mechanisms linking FH to ROS generation and their detrimental impact on atherosclerotic pathophysiology. With this purpose, we reviewed experimental and clinical data on the association between FH and OS and the functional role of OS as a promoter of inflammation and atherosclerosis. In this regard, oxidant species such as oxidized LDL, malondialdehyde, ROS, and isoprostanes emerged as leading mediators of the oxidative injury in FH. In conclusion, targeting oxidative stress may be a promising therapeutic strategy to reduce atherogenesis in patients with FH. PMID- 29323717 TI - Chondrogenic differentiation of human scalp adipose-derived stem cells in Polycaprolactone scaffold and using Freeze Thaw Freeze method. AB - Human adipose tissue has been identified as a viable alternative source for mesenchymal stem cells. SADSCs were isolated from human scalp biopsy and then were characterized by Flow cytometry. SADSCS expressed CD90, CD44, and CD105 but did not express CD45 surface marker. Growth factors were used for chondrogenesis induction. Histology and immunohistology methods and gene expression by real-time PCR 14 days after induced cells have shown the feature of chondrocytes in their morphology and extracellular matrix in both inducing patterns of combination and cycling induction. Moreover, the expression of gene markers of chondrogenesis for example collagen type II aggrecan and SOX9 has shown by real-time PCR assay. Then, SADSCs were seeded alone on polycaprolatone (PCL) and with Freeze thaw Freeze (PCL+FTF) scaffolds and SADSCs differentiated toward the chondrogenic lineage and chondrogenesis induction were evaluated using scanning electron microcopy (SEM) and MTT assay. Our results showed that SADSCs were also similar to the other adipose-derived stem cells. Using TGF-beta3 and BMP-6 were effective for chondrogenesis induction. Therefore using of TGF-beta3 and BMP-6 growth factors may be the important key for in vitro chondrogenesis induction. The bio composite of PCL+FTF nanofibrous scaffolds enhance the chondroblast differentiation and proliferation compared to PCL scaffolds .Therefore, our model will make it possible to study the mechanism of transition from chondroblast to chondrocyte. PMID- 29323718 TI - Effect of miR-182 on hepatic fibrosis induced by Schistosomiasis japonica by targeting FOXO1 through PI3K/AKT signaling pathway. AB - The study aimed to investigate the impact of miR-182 and FOXO1 on S. japonica induced hepatic fibrosis. Microarray analysis was performed to screen out differential expressed miRNAs and mRNAs. Rat hepatic fibrosis model and human hepatocellular cell line LX-2 were used to study the effect of miR-182 and FOXO1. qRT-PCR and Western blot were used to detect the expression of miR-182, FOXO1 or other fibrosis markers. The targeting relationship between FOXO1 and miR-182 was verified by luciferase reporter assay. Immunohistochemistry or immunofluorescence staining was conducted to detect FOXO1 or alpha-SMA in rat hepatic tissues. Cell viability and apoptosis were detected by MTT assay and flow cytometry. The expression of PI3K/AKT pathway-related proteins was detected by Western blot. miR 182 was highly expressed in liver fibrosis samples, and FOXO1 expression was negatively correlated with miR-182 expression. After transfection of miR-182, FOXO1 expression was down-regulated, with the results of LX-2 cells proliferation inhibition and apoptosis induction, as well as the aggravation of rat hepatic fibrosis. The expression of p-AKT/AKT and p-S6/S6 was increased, meaning that the PI3K/AKT signal pathway was activated. The results were reversed when treated with Wortmannin (PI3K inhibitor). After transfection of miR-182 inhibitor, FOXO1 expression was up-regulated, LX-2 cell proliferation was inhibited, and apoptosis rate was increased. High-expressed miR-182 and low-expressed FOXO1 promoted proliferation and inhibiting apoptosis on liver fibrosis cells, stimulating the development of S. japonica-induced hepatic fibrosis through feeding back to PI3K/AKT signaling pathway. PMID- 29323719 TI - The multifaceted link between inflammation and human diseases. AB - Increasing reports on epidemiological, diagnostic, and clinical studies suggest that dysfunction of the inflammatory reaction results in chronic illnesses such as cancer, arthritis, arteriosclerosis, neurological disorders, liver diseases, and renal disorders. Chronic inflammation might progress if injurious agent persists; however, more typically than not, the response is chronic from the start. Distinct to most changes in acute inflammation, chronic inflammation is characterized by the infiltration of damaged tissue by mononuclear cells like macrophages, lymphocytes, and plasma cells, in addition to tissue destruction and attempts to repair. Phagocytes are the key players in the chronic inflammatory response. However, the important drawback is the activation of pathological phagocytes, which might result from continued tissue damage and lead to harmful diseases. The longer the inflammation persists, the greater the chance for the establishment of human diseases. The aim of this review was to focus on advances in the understanding of chronic inflammation and to summarize the impact and involvement of inflammatory agents in certain human diseases. PMID- 29323720 TI - Tfcp2l1 safeguards the maintenance of human embryonic stem cell self-renewal. AB - Tfcp2l1 is a transcription factor critical for mouse embryonic stem cell (mESC) maintenance. However, its role in human ESCs (hESCs) remains unclear. Here, we investigated the role of Tfcp2l1 in controlling hESC activity and showed that Tfcp2l1 is functionally important in the maintenance of hESC identity. Tfcp2l1 expression is highly enriched in hESCs and dramatically decreases upon differentiation. Forced expression of Tfcp2l1 promoted hESC self-renewal. Functional analysis of the mutant forms of Tfcp2l1 revealed that both the CP2- and SAM-like domains are indispensable for Tfcp2l1 to maintain the undifferentiated state of hESCs. Notably, the CP2-like domain is closely related to the suppression of definitive endoderm and mesoderm commitment. Accordingly, knockdown of Tfcp2l1 significantly induced differentiation preferentially into definitive endoderm and mesoderm. Further studies found that inhibition of Wnt/beta-catenin signaling pathway by IWR1 is able to eliminate the differentiation caused by Tfcp2l1 downregulation. Taken together, these findings reveal the unique and crucial role of Tfcp2l1 in the determination of hESC fate and will expand our understanding of the self-renewal and differentiation circuitry in hESCs. PMID- 29323721 TI - Brain-derived neurotrophic factor modulates cholesterol homeostasis and Apolipoprotein E synthesis in human cell models of astrocytes and neurons. AB - In the central nervous system, cholesterol is critical to maintain membrane plasticity, cellular function, and synaptic integrity. In recent years, much attention was focused on the role of cholesterol in brain since a breakdown of cholesterol metabolism has been associated with different diseases. Brain-derived neurotrophic factor (BDNF) was previously reported to elicit cholesterol biosynthesis and promote the accumulation of presynaptic proteins in cholesterol rich lipid rafts, but no data are available on its ability to modulate physiological mechanisms involved in cholesterol homeostasis. Major aim of this research was to investigate whether BDNF influences cholesterol homeostasis, focusing on the effect of the neurotrophin on Apolipoprotein E (ApoE) synthesis, cholesterol efflux from astrocytes and cholesterol incorporation into neurons. Our results show that BDNF significantly stimulates cholesterol efflux by astrocytes, as well as ATP binding cassette A1 (ABCA1) transporter and ApoE expression. Conversely, cholesterol uptake in neurons was downregulated by BDNF. This effect was associated with the increase of Liver X Receptor (LXR)-beta expression in neuron exposed to BDNF. The level of apoptosis markers, that is, cleaved caspase 3 and poly ADP ribose polymerase (PARP), was found increased in neurons treated with high cholesterol, but significantly lower when the cells were exposed to cholesterol in the presence of BDNF, thus suggesting a neuroprotective role of the neurotrophin, likely through its reducing effect of neuronal cholesterol uptake. Interestingly, cholesterol stimulates BDNF production by neurons. Overall, our findings evidenced a novel role of BDNF in the modulation of ApoE and cholesterol homeostasis in glial and neuronal cells. PMID- 29323722 TI - Exosomal miRNAs as novel cancer biomarkers: Challenges and opportunities. AB - A biomarker with high specificity and sensitivity, is a basic requirement for non invasive cancer diagnosis. Exosomes are a type of lipid bilayer extracellular vesicles (EVs), containing different components, including proteins, lipids, DNA, messenger RNA (mRNA), and non-coding RNAs. Increasing evidence indicates that nucleic acids are protected by exosome lipid membrane. These vesicles are almost released from all cell types, into biological fluids. In cancer, the expression of microRNAs (miRNAs), located in the tumor cell-derived exosomes, is deregulated and it could be led to metastasis and therapy resistance. Due to the presence of exosomes in various body fluids and the stability of miRNAs in exosomes, exosomal miRNAs can provide a new class of biomarkers for early and minimally invasive cancer diagnosis. In this article, we review the miRNAs and their roles in cancer. Furthermore, we explain the different types of EVs, especially exosomes, and their functional roles in cancer. At the end, we discuss about the importance of exosomal miRNAs for cancer diagnosis. As well as, we briefly summarize the exosome isolation techniques and obstacles, limiting the clinical applications of exosomal miRNAs. PMID- 29323724 TI - Autoregulation of RANK ligand in oral squamous cell carcinoma tumor cells. AB - Oral squamous cell carcinoma (OSCC) is the most common malignancy among oral cancers and shows potent activity for local bone invasion. Receptor activator of nuclear factor kappaB (RANK) ligand (RANKL) is critical for bone-resorbing osteoclast formation. We previously demonstrated that OSCC tumor cells express high levels of RANKL. In this study, confocal microscopy demonstrated RANKL specific receptor, RANK expression in OSCC tumor cell lines (SCC1, SCC12, and SCC14a). We also confirmed the expression of RANK and RANKL in primary human OSCC tumor specimens. However, regulatory mechanisms of RANKL expression and a functional role in OSCC tumor progression are unclear. Interestingly, we identified that RANKL expression is autoregulated in OSCC tumor cells. The RANKL specific inhibitor osteoprotegerin (OPG) treatment to OSCC cells inhibits autoregulation of RANKL expression. Further, we showed conditioned media from RANKL CRISPR-Cas9 knockout OSCC cells significantly decreased osteoclast formation and bone resorption activity. In addition, RANKL increases OSCC tumor cell proliferation. RANKL treatment to OSCC cells demonstrated a dose-dependent increase in RANK intracellular adaptor protein, TRAF6 expression, and activation of IKK and IkappaB signaling molecules. We further identified that transcription factor NFATc2 mediates autoregulation of RANKL expression in OSCC cells. Thus, our results implicate RANKL autoregulation as a novel mechanism that facilitates OSCC tumor cell growth and osteoclast differentiation/bone destruction. PMID- 29323723 TI - Haplo-insufficiency of Bcl2-associated athanogene 3 in mice results in progressive left ventricular dysfunction, beta-adrenergic insensitivity, and increased apoptosis. AB - Bcl2-associated athanogene 3 (BAG3) is a 575 amino acid protein that is found predominantly in the heart, skeletal muscle, and many cancers. Deletions and truncations in BAG3 that result in haplo-insufficiency have been associated with the development of dilated cardiomyopathy. To study the cellular and molecular events attributable to BAG3 haplo-insufficiency we generated a mouse in which one allele of BAG3 was flanked by loxP recombination sites (BAG3fl/+ ). Mice were crossed with alpha-MHC-Cre mice in order to generate mice with cardiac-specific haplo-insufficiency (cBAG3+/-) and underwent bi-weekly echocardiography to assess their cardiac phenotype. By 10 weeks of age, cBAG3+/- mice demonstrated increased heart size and diminished left ventricular ejection fraction when compared with non-transgenic littermates (Cre-/- BAG3fl/+ ). Contractility in adult myocytes isolated from cBAG3+/- mice were similar to those isolated from control mice at baseline, but showed a significantly decreased response to adrenergic stimulation. Intracellular calcium ([Ca2+ ]i ) transient amplitudes in myocytes isolated from cBAG3+/- mice were also similar to myocytes isolated from control mice at baseline but were significantly lower than myocytes from control mice in their response to isoproterenol. BAG3 haplo-insufficiency was also associated with decreased autophagy flux and increased apoptosis. Taken together, these results suggest that mice in which BAG3 has been deleted from a single allele provide a model that mirrors the biology seen in patients with heart failure and BAG3 haplo-insufficiency. PMID- 29323725 TI - Serum IgG antibodies from healthy subjects up to 100 years old react to JC polyomavirus. AB - JC polyomavirus (JCPyV) was identified in 1971 in the brain tissue of a patient (J.C.) affected by the progressive multifocal leukoencephalopathy (PML). JCPyV encodes for the oncoproteins large T antigen (Tag) and small t-antigen (tag). These oncoproteins are responsible of the cell transformation and tumorigenesis in experimental animals. JCPyV is ubiquitous in human populations. After the primary infection, which is usually asymptomatic, JCPyV remains lifelong in the host in a latent phase. Its reactivation may occur in heathy subjects and immunocompromised patients. Upon reactivation, JCPyV could reach (i) the CNS inducing the PML, (ii) the kidney of transplant patients causing the organ rejection. Association between JCPyV, which is a small DNA tumor virus, and gliomas and colorectal carcinomas has been published. In the present investigation, we report on a new indirect ELISA with two specific synthetic peptides mimicking JCPyV VP1 immunogenic epitopes to detect specific serum IgG antibodies against JCPyV. Serum samples of healthy subjects (n = 355) ranging 2 100 years old, were analyzed by this new indirect ELISA. The linear peptides VP1 K and VP1 N resemble the natural JCPyV VP1 capsidic epitopes constituting a docking site for serum antibodies. Data from this innovative immunologic assay indicate that the overall prevalence of JCPyV-VP1 antibodies in healthy subjects is at 39%. The innovative indirect ELISA with JCPyV VP1 mimotopes seems to be a useful method to detect specific IgG antibodies against this virus, without cross reactivity with the closely related SV40 and BKPyV polyomaviruses. PMID- 29323726 TI - Computational chemical biology and drug design: Facilitating protein structure, function, and modulation studies. AB - Over the past quarter of a century, there has been rapid development in structural biology, which now can provide solid evidence for understanding the functions of proteins. Concurrently, computational approaches with particular relevance to the chemical biology and drug design (CBDD) field have also incrementally and steadily improved. Today, these methods help elucidate detailed working mechanisms and accelerate the discovery of new chemical modulators of proteins. In recent years, integrating computational simulations and predictions with experimental validation has allowed for more effective explorations of the structure, function and modulation of important therapeutic targets. In this review, we summarize the main advancements in computational methodology development, which are then illustrated by several successful applications in CBDD. Finally, we conclude with a discussion of the current major challenges and future directions in the field. PMID- 29323727 TI - Alternative diagnostic criteria for idiopathic hypersomnia: A 32-hour protocol. AB - OBJECTIVE: To assess the diagnostic value of extended sleep duration on a controlled 32-hour bed rest protocol in idiopathic hypersomnia (IH). METHODS: One hundred sixteen patients with high suspicion of IH (37 clear-cut IH according to multiple sleep latency test criteria and 79 probable IH), 32 with hypersomnolence associated with a comorbid disorder (non-IH), and 21 controls underwent polysomnography, modified sleep latency tests, and a 32-hour bed rest protocol. Receiver operating characteristic curves were used to find optimal total sleep time (TST) cutoff values on various periods that discriminate patients from controls. RESULTS: TST was longer in patients with clear-cut IH than other groups (probable IH, non-IH, and controls) and in patients with probable IH than non-IH and controls. The TST cutoff best discriminating clear-cut IH and controls was 19 hours for the 32-hour recording (sensitivity = 91.9%, specificity = 85.7%) and 12 hours (100%, 85.7%) for the first 24 hours. The 19-hour cutoff displayed a specificity and sensitivity of 91.9% and 81.2% between IH and non-IH patients. Patients with IH above the 19-hour cutoff were overweight, had more sleep inertia, and had higher TST on all periods compared to patients below 19 hours, whereas no differences were found for the 12-hour cutoff. An inverse correlation was found between the mean sleep latency and TST during 32-hour recording in IH patients. INTERPRETATION: In standardized and controlled stringent conditions, the optimal cutoff best discriminating patients from controls was 19 hours over 32 hours, allowing a clear-cut phenotypical characterization of major interest for research purposes. Sleepier patients on the multiple sleep latency test were also the more severe in terms of extended sleep. Ann Neurol 2018;83:235-247. PMID- 29323728 TI - Three-dimensional reconstruction of prostate cancer architecture with serial immunohistochemical sections: hallmarks of tumour growth, tumour compartmentalisation, and implications for grading and heterogeneity. AB - AIMS: Conventional morphology of prostate cancer considers only the two dimensional (2D) architecture of the tumour. Our aim was to examine the feasibility of three-dimensional (3D) reconstruction of tumour morphology based on multiple consecutive histological sections and to decipher relevant features of prostate cancer architecture. METHODS AND RESULTS: Seventy-five consecutive histological sections (5 MUm) of a typical prostate adenocarcinoma (Gleason score of 3 + 4 = 7) were immunostained (pan-cytokeratin) and scanned for further 3D reconstructions with fiji/imagej software. The main findings related to the prostate cancer architecture in this case were: (i) continuity of all glands, with the tumour being an integrated system, even in Gleason pattern 4 with poorly formed glands-no short-range migration of cells by Gleason pattern 4 (poorly formed glands); (ii) no repeated interconnections between the glands, with a tumour building a tree-like branched structure with very 'plastic' branches (maximal depth of investigation 375 MUm); (iii) very stark compartmentalisation of the tumour related to extensive branching, the coexistence of independent terminal units of such branches in one 2D slice explaining intratumoral heterogeneity; (iv) evidence of a craniocaudal growth direction in interglandular regions of the prostate and for a lateromedial growth direction in subcapsular posterolateral regions; and (v) a 3D architecture-based description of Gleason pattern 4 with poorly formed glands, and its continuum with Gleason pattern 3. CONCLUSIONS: Consecutive histological sections provide high-quality material for 3D reconstructions of the tumour architecture, with excellent resolution. The reconstruction of multiple regions in this typical case of a Gleason score 3 + 4 = 7 tumour provides insights into relevant aspects of tumour growth, the continuity of Gleason patterns 3 and 4, and tumour heterogeneity. PMID- 29323729 TI - Measurement of two-photon-absorption spectra through nonlinear fluorescence produced by a line-shaped excitation beam. AB - We propose an innovative experimental approach to estimate the two-photon absorption (TPA) spectrum of a fluorescent material. Our method develops the standard indirect fluorescence-based method for the TPA measurement by employing a line-shaped excitation beam, generating a line-shaped fluorescence emission. Such a configuration, which requires a relatively high amount of optical power, permits to have a greatly increased fluorescence signal, thus avoiding the photon counterdetection devices usually used in these measurements, and allowing to employ detectors such as charge-coupled device (CCD) cameras. The method is finally tested on a fluorescent isothiocyanate sample, whose TPA spectrum, which is measured with the proposed technique, is compared with the TPA spectra reported in the literature, confirming the validity of our experimental approach. PMID- 29323730 TI - Biochemical and molecular study on interleukin-1beta gene expression and relation of single nucleotide polymorphism in promoter region with Type 2 diabetes mellitus. AB - : Interleukin-1beta (IL-1beta) assumes a centric role in the regulation of immune and inflammatory responses and thus has been recognized in immune mediated diseases like type 2 diabetes mellitus (T2DM). We aimed to investigate expressed level of IL-1beta and its relation with IL-1beta -511T>C polymorphism in T2DM patients. This study enrolled 80 subjects (50 patients with T2DM and 30 healthy control subjects). Laboratory investigations included fasting (FBG) and 2 h postprandial blood sugar (2 h PBG), HBA1c, lipid profile, and renal function tests. Genotyping of IL-1beta -511T>C (rs16944) SNP assay by real-time PCR and relative quantitation of IL-1beta gene expression transcript by real-time PCR. RESULTS: T2DM patients had significantly higher FBG and 2 h PBG, HBA1c, LDLc, TC, TG, systolic, and diastolic BP while lower HDLc compared with control group. IL 1 beta -511 T>C, CC genotype and C allele were significantly associated with risk of T2DM with odds ratio (OR) 4.73, 95%CI (1.21-18.39) and OR 2.27, 95%CI (1.72 4.40), respectively. Moreover, diabetic patients had significantly higher IL 1- beta gene transcript compared with control group (P < 0.001). CC genotype of IL 1 beta -511 T > C had the highest significant level of IL 1- beta gene transcript demonstrated compared with C/T and T/T genotypes (P < 0.001) in patients. CONCLUSION: C allele of IL-1 beta -511 T >C could be considered risk factor contributor to T2DM and excess level of IL-1 beta transcript may disclose to some degree the inflammatory role of cytokines in T2DM. PMID- 29323731 TI - Expression of PD-L1 correlates with pleomorphic morphology and histological patterns of non-small-cell lung carcinomas. AB - AIMS: As immunomodulatory therapy is being integrated into treatment regimens for non-small-cell lung carcinoma, we aimed to prospectively collect data on the immunohistochemical profile of tumours assessed in our institution and to correlate this with morphological tumour features. METHODS AND RESULTS: Immunohistochemistry for programmed death-ligand 1 (PD-L1) was considered to be adequate when >100 tumour cells were seen microscopically. When adequate, PD-L1 staining was scored as <1%, >=1-49% or >=50% positive membrane staining within tumour cells only. There were 197 assessable cases, of which 87% of those with pleomorphic features (n = 39) showed >=50% positivity for PD-L1 expression, as compared with only 33% of cases without pleomorphic features (P < 0.05) (90% versus 25% in resected cases). Further correlation of PD-L1 expression with architectural patterns within the tumours was performed in 74 adenocarcinoma resections. All invasive mucinous adenocarcinomas scored <1%. All lepidic components in non-mucinous adenocarcinoma resections scored <1%. Thirty-five per cent of the acinar/papillary components and 53% of the solid/micropapillary components were positive for PD-L1 expression. CONCLUSIONS: There are significant differences in PD-L1 expression in relation to histological patterns, with particularly high levels in those with pleomorphic features and low/undetectable levels in invasive mucinous adenocarcinomas and the lepidic components of non mucinous adenocarcinomas. Assessment of PD-L1 expression in a resected adenocarcinoma with a lepidic component may therefore not be reliable when immumodulatory therapy for recurrent disease is being considered, and either re biopsy or limiting assessment to the invasive component may be more appropriate. PMID- 29323732 TI - Analogous on-axis interference topographic phase microscopy (AOITPM). AB - The refractive index (RI) of a sample as an endogenous contrast agent plays an important role in transparent live cell imaging. In tomographic phase microscopy (TPM), 3D quantitative RI maps can be reconstructed based on the measured projections of the RI in multiple directions. The resolution of the RI maps not only depends on the numerical aperture of the employed objective lens, but also is determined by the accuracy of the quantitative phase of the sample measured at multiple scanning illumination angles. This paper reports an analogous on-axis interference TPM, where the interference angle between the sample and reference beams is kept constant for projections in multiple directions to improve the accuracy of the phase maps and the resolution of RI tomograms. The system has been validated with both silica beads and red blood cells. Compared with conventional TPM, the proposed system acquires quantitative RI maps with higher resolution (420 nm @lambda = 633 nm) and signal-to-noise ratio that can be beneficial for live cell imaging in biomedical applications. PMID- 29323733 TI - Photo-induced toxicity following exposure to crude oil and ultraviolet radiation in 2 Australian fishes. AB - Some polycyclic aromatic hydrocarbons (PAHs), components of crude oil, are known to cause increased toxicity when organisms are co-exposed with ultraviolet radiation, resulting in photo-induced toxicity. The photodynamic characteristics of some PAHs are of particular concern to places like Australia with high ultraviolet radiation levels. The objective of the present study was to characterize the photo-induced toxicity of an Australian North West Shelf oil to early life stage yellowtail kingfish (Seriola lalandi) and black bream (Acanthopagrus butcheri). The fish were exposed to high-energy water accommodated fractions for 24 to 36 h. During the exposure, the fish were either co-exposed to full-intensity or filtered natural sunlight and then transferred to clean water. At 48 h, survival, cardiac effects, and spinal deformities were assessed. Yellowtail kingfish embryos co-exposed to oil and full-spectrum sunlight exhibited decreased hatching success and a higher incidence of cardiac arrhythmias, compared with filtered sunlight. A significant increase in the incidence of pericardial edema occurred in black bream embryos co-exposed to full spectrum sunlight. These results highlight the need for more studies investigating the effects of PAHs and photo-induced toxicity under environmental conditions relevant to Australia. Environ Toxicol Chem 2018;37:1359-1366. (c) 2018 SETAC. PMID- 29323734 TI - Inhibitory effect of circulating fibrocytes on injury repair in acute lung injury/acute respiratory distress syndrome mice model. AB - The study was aimed to explore the functions of circulating fibrocytes (CFs) on injury repair in acute lung injury/acute respiratory distress syndrome (ALI/ARDS) mice model and its clinical value as a biomarker for ALI/ARDS. ALI/ARDS mice model was established by intratracheal instillation of lipopolysaccharide (LPS). Mononuclear cells were isolated from peripheral blood of ALI/ARDS model and flow cytometry was used to measure CFs defined as cells positive for CD45 and collagen 1. Histological changes of lung tissues were evaluated by H&E staining and Masson's trichrome staining. The correlations of CFs counts with damnification of lung tissue and the severity of pulmonary fibrosis were evaluated by Pearson correlation analyses. Western blot was used to detect the protein expression of collagen-1. ELISA was applied to determine cytokine CXCL12 concentration. Clinical relevance between CFs and ALI/ARDS was investigated. The greater number of CFs in the ALI/ARDS group implied higher degree of lung injury and more severe pulmonary fibrosis. The protein expression of collagen-1 and concentration of cytokine CXCL12 in ALI/ARDS group were higher than that in control group. Clinical and prognostic analysis revealed the higher injury degree and death rates in ALI/ARDS group than those in control group, and identified a greater severity and mortality for patients with ARDS than those with ALI. ROC curve analysis indicated the counts of CFs greater than 5.85% can predict death rates with AUC = 0.928. CFs had an inhibitory effect on injury repair in ALI/ARDS mice model. This might be unfavorable as a clinical marker for progression of ALI/ARDS. PMID- 29323735 TI - The basis of behavioral momentum in the nonlinearity of strength. AB - The persistence of operant responding in the context of distractors and opposing forces is of central importance to the success of behavioral interventions. It has been successfully analyzed with Behavioral Momentum Theory. Key data from the research inspired by that theory are reanalyzed in terms of more molecular behavioral mechanisms: the demotivational effects of disruptors, and their differential impacts on the target response and other responses that interact with them. Behavioral momentum is regrounded as a nonlinear effect of motivation and reinforcement rate on response probability and persistence. When response probabilities are high, more energy is required to further increase or to decrease them than when they are low. Classic Behavioral Momentum Theory effects are reproduced with this account. Finally, it is shown how the new account involving motivation and competition is closely related to the metaphor of force and action that is at the core of Behavioral Momentum Theory. PMID- 29323736 TI - MAPK and NF-kappaB signalling pathways regulate the expression of miRNA, let-7f in human endocervical epithelial cells. AB - MicroRNAs (miRNAs) mediate post-transcriptional gene suppression and are a critical component of the complex regulatory networks in epithelial immune responses. Transcription of miRNA genes in epithelial cells can be elaborately controlled through Toll-like receptors (TLRs), and associated nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kappaB) and mitogen-activated protein kinase (MAPK) pathways, leading to nuclear transcription factor associated-transactivation and transrepression of miRNAs. MiRNA, let-7f is involved in the regulation of innate immune responses post TLR3 stimulation in human endocervical cells (End1/E6E7) and decreased let-7f is associated with poor immune activation. Thus, expression of let-7f is under strict control. However, the mechanism by which let-7f is regulated in these cells is not known. Therefore, in the present study, we have investigated the role of MAPK and NF kappaB in the transcription of let-7f. We report that signalling of TLR3, results in activation of multiple signalling pathways including MAPK/ERK, JNK, p38, and NF-kappaB. Of these MAPK/ p38 and JNK directly influence the expression of let-7f in End1/E6E7 cells. Inhibition of ERK and NF-kappaB up regulates the expression of let-7f and its transcription factor, C/EBPbeta. In conclusion, we have identified a system through which TLR3 mediated immune response is regulated by C/EBPbeta and let-7f through the temporal activation of MAPK and NF-kappaB in human endocervical cells. PMID- 29323737 TI - MiR-15b/HOTAIR/p53 form a regulatory loop that affects the growth of glioma cells. AB - Among the malignant tumors of the human central nervous system, gliomas have the highest incidence and recurrence rate. Therefore, exploration of the molecular mechanism that underlies the development and progression of gliomas is of great clinical significance. Many studies have demonstrated that long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) play important roles in the development and progression of tumors. In the present study, both an RNAhybrid analysis and a dual-luciferase reporter gene assay confirmed that microRNA-15b (miR-15b) binding sites were present in the sequence of HOX transcript antisense RNA (HOTAIR). The present study further demonstrated that miR-15b, HOTAIR, and p53 formed a mutually regulated loop. MiR-15b upregulated the expression of p53 but inhibited the expression of HOTAIR. In addition, miR-15b was able to regulate the expression of HOTAIR through p53. P53 promoted miR-15b expression but inhibited HOTAIR expression. Furthermore, the examination of cell proliferation, apoptosis, and invasion revealed that both miR-15b and p53 inhibited the proliferation and invasion, but promoted the apoptosis, of glioma cells. In contrast, HOTAIR exerted effects that were the opposite of those exerted by miR-15b and p53 on glioma cells. The upregulation of HOTAIR suppressed the inhibitory effects of miR 15b and p53 on cell proliferation and invasion as well as the promoting effect of miR-15b and p53 on apoptosis. Therefore, it can be concluded that miR-15b, HOTAIR, and p53 constitute a regulatory loop that is capable of regulating the growth of glioma cells. This finding provides a new target for the treatment of gliomas. PMID- 29323738 TI - An epididymis-specific secretory protein Clpsl2 critically regulates sperm motility, acrosomal integrity, and male fertility. AB - The epididymis performs an important role in the maturation of spermatozoa including their acquisition of progressive motility and fertilizing ability. However, the molecular mechanisms that govern these maturational events are still poorly defined. Here we report that Clpsl2, a novel colipase homology, is exclusively expressed in the caupt epididymis and conserved in mammalian. Clpsl2 was secreted into the lumen and covered the acrosome region and principal piece of spermatozoa tail. And during epididymal transit, the binding rate between Clpsl2 protein and the spermatozoa gradually decreased. Though Clpsl2 had the highest identifies with pancreatic colipase (Clps), Clpsl2 lacked those conserved amino acids in pancreatic Clps that interacting with lipase, correspondingly, the recombinant Clpsl2 protein did not possess the Clps function such as promoting the hydrolysis of lipase to its substrate glycerine trioleate. However, sequence analysis showed that Clpsl2 has the potency to bind with lipid. Knockdown expression of Clpsl2 by lentivirus-mediated RNAi in vivo caused an attenuation of spermatozoa motility, a suppressed acrosomal reaction, a decrease of cauda spermatozoa number, and subfertility. This study identified a novel and conserved molecule, Clpsl2, was specifically expressed in epididymis and involved in the regulation of spermatozoa motility, acrosomal integrity, and male fertility. PMID- 29323739 TI - Fasudil alleviates pressure overload-induced heart failure by activating Nrf2 mediated antioxidant responses. AB - The RhoA/Rho-kinase cascade plays an important role in many aspects of cardiovascular function. This study aims to investigate the protective effects of fasudil, a Rho-kinase inhibitor, on pressure overload induced heart failure in rats. Pressure overload induced heart failure was induced in SD rats by banding the abdominal aorta for 8 weeks. The rats were divided into four groups: Sham, TAC, TAC plus low dose of fasudil, and TAC plus high dose of fasudil group. Low dose and high dose fasudil were 5 and 10 mg/kg/day, respectively. Rats in the Sham and TAC groups were treated with vehicle. Fasudil effectively inhibited TAC induced heart failure, as evaluated by echocardiography and transmission electron microscopy. Fasudil could significantly promote superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activity and significantly decrease malondialdehyde (MDA) content in a dose-dependent maner in TAC rats. Consistently, fasudil evoked significant nuclear translocation of Nuclear factor (erythroid-derived 2)-like 2 (Nrf2) with increased DNA/promoter binding and transactivation of Nrf2 targets. In addition, fasudil increased the content of iron as well as transferrin receptor 1 (TfR1) in TAC rats. A mild oxidative stress induced by iron may activate the antioxidant enzymes by feedback response. Taken together, these results indicate that the protective effect of fasudil may be due to its strong antioxidative activities which related with the activated Nrf2 and its down-regulated genes. These findings provide a new treatment concept and support the benefit of fasudil treatment in heart failure. PMID- 29323740 TI - Long non-coding RNA ASBEL promotes osteosarcoma cell proliferation, migration, and invasion by regulating microRNA-21. AB - Osteosarcoma is the most common malignant bone tumor in children and adolescents with high rate of incidence, high frequency of recurrence, and high degree of metastasis. This study aimed to investigate the effects of long noncoding RNA antisense ncRNA in the abundant in neuroepithelium area (ANA)/B-cell translocation gene 3 (BTG3) locus (lncRNA ASBEL) on the pathogenesis of osteosarcoma. The expression levels of ASBEL in human osteoblast cells and human osteosarcoma cells were evaluated using qRT-PCR. Effects of ASBEL knockdown on cell viability, migration, and invasion were detected using trypan blue exclusion assay, cell migration, and cell invasion assay, respectively. The regulatory effects of ASBEL on microRNA-21 (miR-21) were analyzed using qRT-PCR. The roles of miR-21 and protein phosphatase 2A (PP2A), the possible downstream factor of miR-21, in osteosarcoma cell proliferation, migration, and invasion were also explored. The results showed that ASBEL was highly expressed in osteosarcoma cells. Knockdown of ASBEL inhibited osteosarcoma cell viability, migration, and invasion, as well as the expression level of miR-21. PP2A was a direct target of miR-21, which participated in the effects of ASBEL and miR-21 on the activation of phosphatidylinositol 3-kinase/protein kinase 3/glycogen synthase kinase-3beta (PI3K/AKT/GSK3beta) and mitogen-activated protein kinase/extracellular regulated protein kinase (MEK/ERK) signaling pathways as well as the enhancement of osteosarcoma cell proliferation, migration, and invasion. In conclusion, we verified that ASBEL-miR-21-PP2A pathway might play critical regulatory effects on the pathogenesis of osteosarcoma and could be as the potential therapeutic target and biomarker for osteosarcoma treatment. PMID- 29323741 TI - Stainless steel wear debris of a scoliotic growth guidance system has little local and systemic effect in an animal model. AB - Options to treat early-onset scoliosis include guided-growth systems with sliding action between rods and pedicle screws. The wear was previously measured in an in vitro test, and in this in vivo rabbit model, we evaluated the local and systemic biological response to the stainless steel debris. Compared to the previous study, a relatively higher volume of representative wear particles with a median particle size of 0.84 MUm were generated. Bolus dosages were injected into the epidural space at L4-L5 for a minimum of 36 rabbits across three treatment groups (negative control, 1.5 mg, and 4.0 mg) and two timepoints (12 and 24 weeks). Gross pathology evaluated distant organs and the injection site with a dorsal laminectomy to examine the epidural space and dosing site. Peri-implanted particle tissues were stained for immunohistochemical and quantitatively analyzed for IL-6 and TNF-alpha cytokines. Based on ISO 10993-6:2007 scoring, particles in the high-dose group were primarily non-irritant (12 weeks) with one slightly irritant. At 24 weeks, inflammatory cell infiltration was non-existent to minimal with all groups considered non-irritant at the injection site. Material characterization confirmed that particles detected in distant organs were stainless steel or contaminants. At 12 weeks, stainless steel groups demonstrated statistically increased amounts of cytokine levels compared to control but there was a statistical decrease for both at 24 weeks. These findings indicate that stainless steel wear debris, comparable to the expected usage from a simulated growth guidance system, had no discernible untoward biological effects locally and systemically in an animal model. (c) 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1980-1990, 2018. PMID- 29323742 TI - A molecular dynamics investigation into the mechanisms of alectinib resistance of three ALK mutants. AB - Alectinib, a highly selective next-genetation anaplastic lymphoma kinase (ALK) inhibitor, has demonstrated promising antitumor activity in patients with ALK positive non-small cell lung carcinomas (NSCLC). However, the therapeutic benefits of alectinib is inescapably hampered by the development of acquired resistant mutations in ALK. Despite the availability of ample experimental mutagenesis data, the molecular origin and the structural motifs under alectinib binding affinity deficiencies are still ambiguous. Here, molecular dynamics (MD) simulations and molecular mechanics generalized born surface area (MM-GBSA) calculation approaches were employed to elucidate the mechanisms of alectinib resistance induced by the mutations I1171N, V1180L, and L1198F. The MD results reveal that the studied mutations could trigger the dislocation of alectinib as well as conformational changes at the inhibitor binding site, thus induce the interactional changes between alectinib and mutants. The most influenced regions are the ligand binding entrance and the hinge region, which are considered to be the dominant binding motifs accounting for the binding affinity loss in mutants. The "key and lock mechanism" between the ethyl group at position 9 of alectinib and a recognition cavity in the hinge region of ALK is presented to illustrate the major molecular origin of drug resistance. Our results provide mechanistic insight into the effect of ALK mutations resistant to alectinib, which could contribute to further rational design of inhibitors to combat the acquired resistance. PMID- 29323743 TI - Differential expression profile of long non-coding RNAs in human thoracic aortic aneurysm. AB - Thoracic aortic aneurysm (TAA) is progressive fatal aortic pathological dilation, which is characterized by increased proteoglycans and loss of elastic fibers. Recent advances in long non-coding RNAs (lncRNAs), an important regulator in many biological processes, suggested the close correlation between expression patterns and disease progression. In the present study, the ascending aortic tissues were collected from ascending TAA patients (n = 33) and organ donors (n = 16). Microarray analysis and real-time PCR were then applied to detect the lncRNA expression profiles. A total of 147 differentially expressed lncRNAs were determined, including 104 upregulated and 43 downregulated lncRNAs. Bioinformatics analysis showed 51.7% of differentially expressed lncRNAs were sense-overlapping, and most of the down-regulated lncRNAs were located on chromosome 1, 7, and 12. Subgroup analysis of TAA patients indicated that the expression of lnc-HLTF-5 was significantly higher in hypertension group than non hypertension group (P < 0.05). Spearman correlation analysis further confirmed that the lnc-HLTF-5 level was positively correlated with the expanded ascending aortic diameter (rs = 0.483, P = 0.004) and MMP9 level (rs = 0.465, P = 0.006). Our results expanded the lncRNA expression patterns in aortic disease, and provided experimental basis for future investigation on TAA pathogenesis. PMID- 29323744 TI - MicroRNA-193b-3p regulates matrix metalloproteinase 19 expression in interleukin 1beta-induced human chondrocytes. AB - Micro(mi)RNAs are small, non-coding RNA molecules known to play a significant role in osteoarthritis (OA) initiation and development, and similar to matrix metalloproteinases (MMPs), they participate in cartilage degeneration and cleave multiple extracellular matrices. The aim of this study was to determine whether the expression of MMP-19 in interleukin (IL)-1beta-induced human chondrocytes is directly regulated by miR-193b-3p. Expression levels of miR-193b-3p and MMP-19 in normal and osteoarthritis (OA) human cartilage, and interleukin-1 beta (IL-1beta) induced human chondrocytes were determined by real-time polymerase chain reaction. Additionally, expression level of MMP-19 in IL-1beta-induced human chondrocytes was estimated by Western blotting and immunohistochemistry analyses. The effect of miR-193b-3p on MMP-19 expression was evaluated using transient transfection of normal human chondrocytes with miR-193b-3p mimic or its antisense inhibitor (miR-193b-3p inhibitor), and siMMP-19. The putative binding site of miR 193b-3p in the 3'-untranslated region (UTR) of MMP-19 mRNA was validated by luciferase reporter assay. miR-193b-3p expression was reduced in OA cartilage compared to that in normal chondrocytes, while the opposite was observed for MMP 19. Upregulation of MMP-19 expression was correlated with downregulation of miR 193b-3p in IL-1beta-stimulated normal chondrocytes. Increase in miR-193b-3p levels was associated with silencing of MMP-19. Overexpression of miR-193b-3p suppressed the activity of the reporter construct containing the 3'-UTR of human MMP-19 mRNA and inhibited the IL-1beta-induced expression of MMP-19 and iNOS in chondrocytes, while treatment with miR-193b-3p inhibitor enhanced MMP-19 expression. MiR-193b-3p is an important regulator of MMP-19 in human chondrocytes and may relieve the inflammatory response in OA. PMID- 29323745 TI - The dancing thrombus: 4D transesophageal echocardiography in the diagnosis of a pedunculated left atrial appendage thrombus. AB - It is rare that a left atrial appendage thrombus will grow to the extent that it can prolapse into the left ventricle. We report the case of a large prolapsing left atrial thrombus diagnosed by 3D echocardiography in a patient presenting with a transient ischemic attack. PMID- 29323746 TI - Acetabular and spino-pelvic morphologies are different in subjects with symptomatic cam femoro-acetabular impingement. AB - Acetabular and spino-pelvic (SP) morphological parameters are important determinants of hip joint dynamics. This prospective study aimed to determine whether acetabular and SP morphological differences exist between hips with and without cam morphology and between symptomatic and asymptomatic hips with cam morphology. A cohort of 67 patients/hips was studied. Hips were either asymptomatic with no cam (Controls, n = 18), symptomatic with cam (n = 26) or asymptomatic with cam (n = 23). CT-based quantitative assessments of femoral, acetabular, pelvic, and spino-pelvic parameters were performed. Measurements were compared between controls and those with a cam deformity, as well as between the three groups. Morphological parameters that were independent predictors of a symptomatic cam were determined using a regression analysis. Hips with cam deformity had slightly smaller subtended angles superior-anteriorly (87 degrees vs. 84 degrees , p = 0.04) and greater pelvic incidence (53 degrees vs. 48 degrees , p = 0.003) compared to controls. Symptomatic cams had greater acetabular version (p < 0.01), greater subtended angles superiorly and superior posteriorly (p = 0.01), higher pelvic incidence (p = 0.02), greater alpha angles and lower femoral neck-shaft angles compared to asymptomatic cams (p < 0.01) and controls (p < 0.01). The four predictors of symptomatic cam included antero superior alpha angle, femoral neck-shaft angle, acetabular depth, and pelvic incidence. In conclusion, this study illustrates that symptomatic hips had a greater amount of supero-posterior coverage; which would be the contact area between a radial cam and the acetabulum, when the hip is flexed to 90 degrees . Furthermore, individuals with symptomatic cam morphology had greater PI. Acetabular- and SP parameters should be part of the radiological assessment of femoro-acetabular impingement. (c) 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1840-1848, 2018. PMID- 29323747 TI - Comprehensive intraoperative transesophageal echocardiography of anomalous left coronary artery from pulmonary artery: What to look for and where to look? AB - Anomalous origin of left coronary artery from pulmonary artery (ALCAPA) accounts for 0.4% of the congenital heart diseases. Comprehensive 2D and 3D transesophageal echocardiographic imaging of a well-collateralized subset of ALCAPA is described. A nonstandard short-axis view of both aorta and pulmonary arteries showed the origin of left coronary artery from the posterior sinus of the pulmonary artery and right coronary artery in its usual position. Pulse-wave interrogation of the coronary arteries showed the direction of flow in opposite directions. Using the real time-3D, the en-face views of the origins of both coronaries were also demonstrated. PMID- 29323748 TI - The gain-of-function mutation E76K in SHP2 promotes CAC tumorigenesis and induces EMT via the Wnt/beta-catenin signaling pathway. AB - SHP2 is encoded by the protein tyrosine phosphatase 11 (Ptpn11) gene. Several gain-of-function (GOF) mutations in Ptpn11 have been identified in human hematopoietic malignancies and solid tumors. In addition, the mutation rate for SHP2 is the highest for colorectal cancer (CRC) among solid tumors. The E76K GOF mutation is the most common and active SHP2 mutation; however, the pathogenic effects and function of this mutation in CRC tumor progression have not been well characterized. The Wnt/beta-catenin (CTNNB1) signaling pathway is crucial for CRC, and excessive activation of this pathway has been observed in several tumors. We used Ptpn11E76K conditional knock-in mice to study this GOF mutation in colitis-associated CRC (CAC) and used the CRC cell lines HT29 and HCT116 to determine the relationship between SHP2 and Wnt/beta-catenin signaling. Ptpn11E76K conditional knock-in mice exhibited aggravated inflammation and increased CAC tumorigenesis. In vitro, SHP2E76K and SHP2WT promoted malignant biological behaviors of CRC cells and induced epithelial-mesenchymal transition (EMT) via the Wnt/beta-catenin signaling pathway. Together, our results showed that SHP2E76K acts as an oncogene that promotes the tumorigenesis and metastasis of CRC. PMID- 29323749 TI - Synthesis and biological evaluation of phloroglucinol derivatives possessing alpha-glycosidase, acetylcholinesterase, butyrylcholinesterase, carbonic anhydrase inhibitory activity. AB - A series of novel phloroglucinol derivatives were designed, synthesized, characterized spectroscopically and tested for their inhibitory activity against selected metabolic enzymes, including alpha-glycosidase, acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and human carbonic anhydrase I and II (hCA I and II). These compounds displayed nanomolar inhibition levels and showed Ki values of 1.14-3.92 nM against AChE, 0.24-1.64 nM against BChE, 6.73-51.10 nM against alpha-glycosidase, 1.80-5.10 nM against hCA I, and 1.14-5.45 nM against hCA II. PMID- 29323750 TI - Design, synthesis, and molecular docking of novel indole scaffold-based VEGFR-2 inhibitors as targeted anticancer agents. AB - A series of new indole derivatives 1-18 was synthesized and tested for their cytotoxic activity on a panel of 60 tumor cell lines. Additionally, molecular docking was carried out to study their binding pattern and binding affinity in the VEGFR-2 active site using sorafenib as a reference VEGFR-2 inhibitor. Based on the molecular docking results, compounds 5a, 5b, 6, 7, 14b, 18b, and 18c were selected to be evaluated for their VEGFR-2 inhibitory activity. Compound 18b exhibited a broad-spectrum antiproliferative activity on 47 cell lines, with GI % ranging from 31 to 82.5%. Moreover, compound 18b was the most potent VEGFR-2 inhibitor with an IC50 value of 0.07 MUM, which is more potent than that of sorafenib (0.09 MUM). A molecular docking study attributed the promising activity of this series to their hydrophobic interaction with the VEGFR-2 binding site hydrophobic side chains and their hydrogen bonding interaction with the key amino acids Glu885 and/or Asp1046. PMID- 29323752 TI - Congenital aortocaval fistula between right aortic sinus of Valsalva and superior vena cava: A rare case report. AB - Thoracic aortocaval fistula is a very rare cause of left to right shunt. Drainage of fistula into the superior vena cava (SVC) is very uncommon. Clinical symptoms depend on the size of the shunt. We report a rare case of an asymptomatic 27-year old woman with congenital aortocaval fistula to the SVC with a small amount of left to right shunt that was considered for serial medical follow-up. PMID- 29323751 TI - [18 F]AV-1451 clustering of entorhinal and cortical uptake in Alzheimer's disease. AB - OBJECTIVE: To use a cluster analysis of [18 F]AV-1451 tau-PET data to determine how subjects with Alzheimer's disease (AD) vary in the relative involvement of the entorhinal cortex and neocortex, and determine whether relative involvement of these two regions can help explain variability in age and clinical phenotype in AD. METHODS: We calculated [18 F]AV-1451 uptake in entorhinal cortex and neocortex in 62 amyloid-positive AD patients (39 typical and 23 atypical presentation). tau-PET (positron emission tomography) values were normalized to the cerebellum to create standard uptake value ratios (SUVRs). tau-PET SUVRs were log-transformed and clustered blinded to clinical information into three groups using K-median cluster analysis. Demographics, clinical phenotype, cognitive performance, and apolipoprotein e4 frequency were compared across clusters. RESULTS: The cluster analysis identified a cluster with low entorhinal and cortical uptake (ELo /CLo ), one with low entorhinal but high cortical uptake (ELo /CHi ), and one with high cortical and entorhinal uptake (EHi /CHi ). Clinical phenotype differed across clusters, with typical AD most commonly observed in the ELo /CLo and EHi /CHi clusters, and atypical AD most commonly observed in the ELo /CHi cluster. The ELo /CLo cluster had an older age at PET and onset than the other clusters. Apolipoprotein e4 frequency was lower in the ELo /CHi cluster. The EHi /CHi cluster had the worst memory impairment, whereas the ELo /CHi cluster had the worst impairment in nonmemory domains. INTERPRETATION: This study demonstrates considerable variability in [18 F]AV-1451 tau-PET uptake in AD, but shows that a straightforward clustering based on entorhinal and cortical uptake maps well onto age and clinical presentation in AD. Ann Neurol 2018 Ann Neurol 2018;83:248-257. PMID- 29323753 TI - Associations of mitochondrial polymorphisms with sporadic colorectal adenoma. AB - Somatic mutations in mitochondrial DNA have been reported in colorectal adenomatous polyps (adenomas), the precursors to most colorectal cancers. However, there are no reports of associations of germline variation in mitochondrial DNA with adenoma risk. We investigated associations of germline polymorphisms in the displacement loop (D-loop) and non-D-loop region of the mitochondrial genome with incident, sporadic colorectal adenoma in three pooled colonoscopy-based case-control studies (n = 327 adenoma cases, 420 controls) that used identical methods for case and risk factor ascertainment. We sequenced a 1124 bp fragment to identify all genetic variation in the mitochondrial D-loop region, and used the Sequenom platform to genotype 64 tagSNPs in the non-D-loop region. We used multivariable unconditional logistic regression to estimate associations of the polymorphisms with adenoma. The odds ratios (OR) for associations of four polymorphisms in the HV1 region (mt16294, mt16296, mt16278, mt16069) with adenoma were 2.30, 2.63, 3.34, and 0.56, respectively; all 95% confidence intervals (CI) excluded 1.0, however, after correction for multiple comparisons, none of the findings remained statistically significant. Similar results were found for six polymorphisms in the non-D-loop region. In the HV1 region poly C tract, relative to those with 5 repeats, the ORs for those with fewer or more repeats were, respectively, 2.29 (95%CI 1.07-4.89) and 0.63 (95%CI 0.36-1.08), but repeat numbers in the HV2 region were not associated with adenoma. These findings suggest that mitochondrial D-loop HV1 region polymorphisms may be associated with colorectal adenoma risk and support further investigation. PMID- 29323755 TI - Direct-acting antiviral regimens are safe and effective in the treatment of hepatitis C in simultaneous liver-kidney transplant recipients. AB - Hepatitis C (HCV) remains the single most common etiology of end-stage liver disease leading to simultaneous liver/kidney transplant (SLKT) and has worse post transplant survival compared to non-HCV patients. We aim to assess the effectiveness and tolerance of the all-oral direct-acting antiviral (DAA) agents with or without ribavirin (RBV) in the treatment of HCV recurrence post-SLKT. Thirty-four patients were studied retrospectively, composed predominantly of treatment-naive (73.5%) non-Caucasian (61.8%) males (82.4%) infected with genotype 1a (64.7%). 94.1% reached a sustained virologic response (SVR) after 24 weeks (32/34 patients), without difference between 12 and 24 weeks of therapy. 64.7% had no clinical side effects. Three deaths occurred, all unrelated to treatment. One patient had liver rejection; tacrolimus was increased and prednisone was initiated while HCV treatment was continued and the patient ultimately achieved SVR. No liver graft losses. No kidney rejection or losses. We demonstrated that DAA combinations with or without RBV result in a remarkable SVR rate and tolerated in the majority of the studied SLKT patients. It is safe to wait to treat until post-kidney transplant and therefore increase the donor pool for these patients. Our cohort is ethnically diverse, making our results generalizable. PMID- 29323754 TI - A rare cause of retinal artery embolism: Accessory mitral valve tissue. AB - A 42-year-old female patient was referred our clinic for investigation of a history of acute retinal artery occlusion. Transthoracic echocardiography showed a cyst-like, mobile formation on posterior mitral valve leaflet. 2D and real time 3D transesophageal echocardiography showed a flexible circular mobile structure which was attached to posterior mitral valve leaflet. Echocardiographic appearance and morphological characteristics were suggestive of accessory mitral valve tissue. PMID- 29323756 TI - Juvenile Taiep rats have shorter dendritic trees in the dorsal field of the hippocampus without spatial learning disabilities. AB - Myelin mutant taiep rats show a progressive demyelination in the central nervous system due to an abnormal accumulation of microtubules in the cytoplasm and the processes on their oligodendrocytes. Demyelination is associated with electrophysiological alterations and the mutant had a progressive astrocytosis. The illness is associated with change in cytokine levels and in the expression of different nitric oxide synthase and concomitantly lipoperoxidation in several areas of the brain. However, until now there has been no detailed anatomical analysis of neurons in this mutant. The aim of this study was to analyze the dendritic morphology in the hippocampus using Golgi-Cox staining and spatial memory through Morris water maze test in young adult (3 months old) taiep rats and compare them with normal Sprague-Dawley. Our results showed that taiep rats have altered dendritic tree morphology in pyramidal neurons in the CA1 field of the hippocampus, but not in the CA3 region. These morphological changes did not produce a concomitant deficit in spatial memory acquisition or recall at this early stage of the disease. Our results suggest that impairment of dendritic morphology in the CA1 field of the hippocampus is a landmark of the pathology of this progressive multiple sclerosis model. PMID- 29323758 TI - Highly Stable, New, Organic-Inorganic Perovskite (CH3 NH3 )2 PdBr4 : Synthesis, Structure, and Physical Properties. AB - Lead halide perovskites have attracted striking attention recently, due to their appealing properties. However, toxicity and stability are two main factors restricting their application. In this work, a less toxic and highly stable Pd based hybrid perovskite was experimentally synthesized, after exploring different experimental conditions. This new hybrid organic-inorganic perovskite (CH3 NH3 )2 PdBr4 was found to be an orthorhombic crystal (Cmce, Z=4) with lattice parameters a=8.00, b=7.99, c=18.89 A. The Cmce symmetry and lattice parameters were confirmed using Pawley refinement and the atoms positions were confirmed based on DFT calculation. This perovskite compound was determined to be a p-type semiconductor, with a resistivity of 102.9 kOmega cm, a carrier concentration of 3.4 *1012 cm-3 , and a mobility of 23.4 cm2 (V s)-1 . Interestingly, XRD and UV/Vis measurements indicated that the phase of this new perovskite was maintained with an optical gap of 1.91 eV after leaving in air with a high humidity of 60 % for 4 days, and unchanged for months in N2 atmosphere; much more stable than most existing organic-inorganic perovskites. The synthesis and various characterizations of this work further the understanding of this (CH3 NH3 )2 PdBr4 organic-inorganic hybrid perovskite material. PMID- 29323757 TI - Differentiation-associated urothelial cytochrome P450 oxidoreductase predicates the xenobiotic-metabolizing activity of "luminal" muscle-invasive bladder cancers. AB - Extra-hepatic metabolism of xenobiotics by epithelial tissues has evolved as a self-defence mechanism but has potential to contribute to the local activation of carcinogens. Bladder epithelium (urothelium) is bathed in excreted urinary toxicants and pro-carcinogens. This study reveals how differentiation affects cytochrome P450 (CYP) activity and the role of NADPH:P450 oxidoreductase (POR). CYP1A1 and CYP1B1 transcripts were inducible in normal human urothelial (NHU) cells maintained in both undifferentiated and functional barrier-forming differentiated states in vitro. However, ethoxyresorufin O-deethylation (EROD) activity, the generation of reactive BaP metabolites and BaP-DNA adducts, were predominantly detected in differentiated NHU cell cultures. This gain-of-function was attributable to the expression of POR, an essential electron donor for all CYPs, which was significantly upregulated as part of urothelial differentiation. Immunohistology of muscle-invasive bladder cancer (MIBC) revealed significant overall suppression of POR expression. Stratification of MIBC biopsies into "luminal" and "basal" groups, based on GATA3 and cytokeratin 5/6 labeling, showed POR over-expression by a subgroup of the differentiated luminal tumors. In bladder cancer cell lines, CYP1-activity was undetectable/low in basal PORlo T24 and SCaBER cells and higher in the luminal POR over-expressing RT4 and RT112 cells than in differentiated NHU cells, indicating that CYP-function is related to differentiation status in bladder cancers. This study establishes POR as a predictive biomarker of metabolic potential. This has implications in bladder carcinogenesis for the hepatic versus local activation of carcinogens and as a functional predictor of the potential for MIBC to respond to prodrug therapies. PMID- 29323759 TI - Barriers and Solutions to Delivery of Intensive Care Unit Nutrition Therapy. AB - Despite recommendations for early enteral nutrition (EN) in critically ill patients, numerous factors contribute to incomplete delivery of EN, including insufficient nutrition risk screening in critically ill patients, underutilization of enteral feeding protocols, fixed rate-based enteral infusion targets with frequent EN interruption, and suboptimal provider practices regarding nutrition support therapy. The purpose of this narrative review is to identify common barriers to optimizing and delivering nutrition in critically ill patients, and suggest strategies and solutions to overcome barriers. PMID- 29323760 TI - Donor CD163 and nestin-positive cells predict graft function in living donor liver transplant. AB - AIMS: To evaluate the effect of donor liver resident mesenchymal cells, M2 macrophages on liver graft outcome after living donor liver transplantation. MATERIALS AND METHODS: Seventy donor biopsies were included in the study. Outcomes at day 3, 7, 30, and 180 postliver transplantation were assessed. Mesenchymal stem cells and M2 macrophages in donor liver biopsies were evaluated. RESULTS: Mean age of recipients was 40.9 +/- 13.6 years. Sex mismatched transplants were 44 (M->F = 9; F->M = 35). On area under receiver operative curve analysis, donor biopsy (DB) nestin >=3 and CD 163 >= 32/200x at day 3; CD163 >= 32 at day 7; CD 163 > 32, pRBC of <6.5 units at day 30, and DB nestin >=3, CD 163 >= 32 and pRBC<6.5 units at day 180 predicted adequate graft functions. On multivariate analysis, higher DB nestin (P = .009) and lower cryoprecipitate (P = .009) usage at day 3, higher DB CD163 (P = .006) at day 7, higher DB CD163 (P = .018) and reduced transfusion of packed cell (pRBC) (P = .014) at day 30 and higher DB nestin (P = .011), higher CD163 (P = .009), and reduced pRBC (P = .045) at day 180 were the predictors of better outcome. CONCLUSIONS: Donor liver biopsy nestin+ and CD163+ can predict early graft outcome in living donor liver transplantation. PMID- 29323762 TI - Pentacene Dimers as a Critical Tool for the Investigation of Intramolecular Singlet Fission. AB - Singlet fission (SF) involves the spontaneous splitting of a photoexcited singlet state into a pair of triplets, and it holds great promise toward the realization of more efficient solar cells. Although the process of SF has been known since the 1960s, debate regarding the underlying mechanism continues to this day, especially for molecular materials. A number of different chromophores have been synthesized and studied in order to better understand the process of SF. These previous reports have established that pentacene and its derivatives are especially well-suited for the study of SF, since the energetic requirement E(S1 )>=2E(T1 ) is fulfilled rendering the process exothermic and unidirectional. Dimeric pentacene derivatives, in which individual pentacene chromophores are tethered by a "spacer", have emerged as the system of choice toward exploring the mechanism of intramolecular singlet fission (iSF). The dimeric structure, and in particular the spacer, allows for controlling and tuning the distance, geometric relationship, and electronic coupling between the two pentacene moieties. This Minireview describes recent advances using pentacene dimers for the investigation of iSF. PMID- 29323763 TI - Calcium-Responsive Liposomes via a Synthetic Lipid Switch. AB - Liposomal drug delivery would benefit from enhanced control over content release. Here, we report a novel avenue for triggering release driven by chemical composition using liposomes sensitized to calcium-a target chosen due to its key roles in biology and disease. To demonstrate this principle, we synthesized calcium-responsive lipid switch 1, designed to undergo conformational changes upon calcium binding. The conformational change perturbs membrane integrity, thereby promoting cargo release. This was shown through fluorescence-based release assays via dose-dependent response depending on the percentage of 1 in liposomes, with minimal background leakage in controls. DLS experiments indicated dramatic changes in particle size upon treatment of liposomes containing 1 with calcium. In a comparison of ten naturally occurring metal cations, calcium provided the greatest release. Finally, STEM images showed significant changes in liposome morphology upon treatment of liposomes containing 1 with calcium. These results showcase lipid switches driven by molecular recognition principles as an exciting avenue for controlling membrane properties. PMID- 29323764 TI - Integrative neuro-humoral regulation of oxytocin neuron activity in pregnancy and lactation. AB - Oxytocin is required for normal birth and lactation. Oxytocin is synthesised by hypothalamic supraoptic and paraventricular nuclei neurons and is released into the circulation from the posterior pituitary gland. Under basal conditions, circulating oxytocin levels are relatively constant but during birth and lactation, pulsatile oxytocin release triggers rhythmic contraction of the uterus during birth and milk ejection during suckling. Oxytocin levels are principally determined by the pattern of action potential firing that is, in turn, determined by the interplay between the intrinsic properties of the oxytocin neurons, regulation of their excitability by surrounding glia as well as by synaptic drive from their afferent inputs. During birth and suckling, oxytocin neurons fire high frequency bursts of action potentials that are coordinated across the population of neurons and these bursts underpin the pulsatile secretion of oxytocin required for normal birth and lactation. Neuroglial regulation of oxytocin neurons changes during pregnancy to favour burst firing. However, these changes still require afferent input activity to drive activity. While it has long been known that noradrenergic inputs to oxytocin neurons are activated during birth and lactation, the involvement of other afferent inputs is less clear. Here, we provide a brief overview of the current understanding of the mechanisms that regulate oxytocin neuron activity during pregnancy and lactation, and focus on recent evidence from our laboratory identifying an input that increases kisspeptin production to excite oxytocin neurons in late pregnancy. This article is protected by copyright. All rights reserved. PMID- 29323761 TI - Chronic Critical Illness: Application of What We Know. AB - Over the last decade, chronic critical illness (CCI) has emerged as an epidemic in intensive care unit (ICU) survivors worldwide. Advances in ICU technology and implementation of evidence-based care bundles have significantly decreased early deaths and have allowed patients to survive previously lethal multiple organ failure (MOF). Many MOF survivors, however, experience a persistent dysregulated immune response that is causing an increasingly predominant clinical phenotype called the persistent inflammation, immunosuppression, and catabolism syndrome (PICS). The elderly are especially vulnerable; thus, as the population ages the prevalence of this CCI/PICS clinical trajectory will undoubtedly grow. Unfortunately, there are no proven therapies to prevent PICS, and multimodality interventions will be required. The purpose of this review is to: (1) discuss CCI as it relates to PICS, (2) identify the burden on healthcare and poor outcomes of these patients, and (3) describe possible nutrition interventions for the CCI/PICS phenotype. PMID- 29323765 TI - Human papillomavirus and nasopharyngeal cancer. AB - BACKGROUND: There are no existing high-volume studies characterizing human papillomavirus (HPV)-associated nasopharyngeal cancer (NPC). METHODS: The National Cancer Data Base (NCDB) was queried for NPC with known HPV (2004-2013). Logistic regression ascertained factors associated with HPV-positivity. Kaplan Meier overall survival (OS) was evaluated between HPV-positive and HPV-negative cohorts; Cox proportional hazards modeling assessed factors associated with OS. Patients with nonmetastatic disease receiving definitive chemoradiotherapy underwent propensity-matched OS analysis. RESULTS: Altogether, 956 patients were analyzed (32% HPV-positive and 68% HPV-negative). Median follow-up was 23 months (range 0-67 months). The patients with HPV-positive disease were younger, less likely to be uninsured, lived in more educated areas, and presented with more advanced T (but not N/overall) classification. Median OS for HPV-positive and HPV negative groups were 50 and 43 months, respectively (P = .171). The HPV status did not independently predict for OS (P = .183). No OS differences were observed after propensity matching (P = .734). CONCLUSION: In what we believe as the only large study of HPV-associated NPC, HPV neither correlates with nor predicts survival in NPC. Owing to the difficulty of addressing causality in database studies, further work must corroborate the findings herein. PMID- 29323766 TI - Acupuncture in hospice settings: A qualitative exploration of patients' experiences. AB - Whilst acupuncture has the potential to impact on many aspects of health and well being, including end-of-life care, there is little research regarding patients' experiences of its effects within the context of palliative care in hospice settings. The aim of this study was to address this gap, by exploring patients' experiences of acupuncture within this setting. In-depth, semi-structured interviews were conducted with a sample of eighteen patients who had received acupuncture as part of hospice care. Transcription of data, with thematic analysis, identified two overarching themes: (1) participant perceptions of the effects of acupuncture including pain control, improved physical and emotional health, spiritual well-being and awareness of health as a holistic phenomenon; and (2) factors which participants believed enabled acupuncture to have these effects including the quality of the practitioner relationship, engagement of participants in the process of their treatment and prior expectations that acupuncture could work. Acupuncture was found to be a highly acceptable, accessible and popular treatment with positive holistic effects reported across the domains of physical, mental and spiritual health and no serious adverse effects. By enabling awareness of the holistic nature of health and well-being, acupuncture was experienced as having the potential to contribute to a better death, an emergent theory that needs testing in further studies. In the meanwhile, the results of this study offer encouragement to hospices currently providing or considering investing in acupuncture provision. PMID- 29323767 TI - High land-use intensity exacerbates shifts in grassland vegetation composition after severe experimental drought. AB - Climate change projections anticipate increased frequency and intensity of drought stress, but grassland responses to severe droughts and their potential to recover are poorly understood. In many grasslands, high land-use intensity has enhanced productivity and promoted resource-acquisitive species at the expense of resource-conservative ones. Such changes in plant functional composition could affect the resistance to drought and the recovery after drought of grassland ecosystems with consequences for feed productivity resilience and environmental stewardship. In a 12-site precipitation exclusion experiment in upland grassland ecosystems across Switzerland, we imposed severe edaphic drought in plots under rainout shelters and compared them with plots under ambient conditions. We used soil water potentials to scale drought stress across sites. Impacts of precipitation exclusion and drought legacy effects were examined along a gradient of land-use intensity to determine how grasslands resisted to, and recovered after drought. In the year of precipitation exclusion, aboveground net primary productivity (ANPP) in plots under rainout shelters was -15% to -56% lower than in control plots. Drought effects on ANPP increased with drought severity, specified as duration of topsoil water potential psi < -100 kPa, irrespective of land-use intensity. In the year after drought, ANPP had completely recovered, but total species diversity had declined by -10%. Perennial species showed elevated mortality, but species richness of annuals showed a small increase due to enhanced recruitment. In general, the more resource-acquisitive grasses increased at the expense of the deeper-rooted forbs after drought, suggesting that community reorganization was driven by competition rather than plant mortality. The negative effects of precipitation exclusion on forbs increased with land-use intensity. Our study suggests a synergistic impact of land-use intensification and climate change on grassland vegetation composition, and implies that biomass recovery after drought may occur at the expense of biodiversity maintenance. PMID- 29323768 TI - Copper-Catalyzed Enantioselective Arylative Desymmetrization of Prochiral Cyclopentenes with Diaryliodonium Salts. AB - A copper-catalyzed enantioselective arylative desymmetrization of prochiral cyclopentenes with diaryliodonium salts was developed. In the presence of a catalytic amount of a chiral copper-bisoxazoline complex, which was generated in situ, the reaction of 4-substituted or 4,4-disubstituted cyclopent-1-enes with diaryliodonium hexafluoroarsenates afforded the chiral arylated products in good yields with excellent enantioselectivity. A cyclohexyl-containing Box ligand was essential for the high enantioselectivity. Transformation of the enantiomerically enriched adducts into other chiral building blocks is also documented. PMID- 29323769 TI - Systolic heart failure after liver transplantation: Incidence, predictors, and outcome. AB - Although most patients presenting for liver transplantation have normal left ventricular function, some develop left ventricular failure after transplantation. The primary objective of our study was to determine the predictors of systolic heart failure (HF) occurring immediately after liver transplantation. Its etiology, prospects of recovery, and factors associated with nonrecovery were also studied. Liver transplantations performed at our institution from January 2006 to February 2015 were evaluated using prospectively collected institutional registries. Patients with echocardiographically documented decline in ejection fraction to <45% within 6 months after liver transplantation were identified. Four controls were chosen per case: matched for age, gender, transplant year, and model for end-stage liver disease score. Conditional multivariable logistic regression was used for primary analysis and nonparametric tests for comparison between groups. In a cohort of 1284 adult patients, 45 cases and 180 controls were identified. Diastolic dysfunction (DD) was an independent predictor (OR 5.26, 95% CI 1.03-28.57, P = .04) of systolic HF in multivariable analysis. Stress-induced cardiomyopathy was the most common etiology. Left ventricular function recovered in 21 patients. Pretransplant DD decreased the chances of recovery (P = .05). In conclusion, patients with pretransplant DD need close post-transplant follow-up for timely identification of HF. PMID- 29323770 TI - Human papillomavirus in the nasopharynx: A true entity? PMID- 29323771 TI - Association of IGFN1 variant with polypoidal choroidal vasculopathy. AB - BACKGROUND: Polypoidal choroidal vasculopathy (PCV) and neovascular age-related macular degeneration (nAMD) share a similar phenotype but are different in their clinical manifestations, responses to treatment and prognosis. Whether PCV is a subtype of AMD or a distinct entity from nAMD remains unknown. Therefore, we performed a whole-exome sequencing based association analysis to compare the genetic architecture of PCV and nAMD in Han Chinese. METHODS: Whole-exome sequencing analysis was performed on 21 nAMD cases, 20 PCV cases and 20 healthy controls. As a follow-up validation, 145 nAMD cases, 160 PCV cases and 193 controls were genotyped using the Sequenom MassARRAY platform (Sequenom, San Diego, CA, USA). RESULTS: A novel variant, c.6196A>G in the IGFN1 gene, was significantly associated with only PCV (combined p = 7.1 * 10-11 , odds ratio = 9.44), but not with nAMD (combined p = 0.683, odds ratio = 1.30). The minor allele G conferred an increased risk of PCV. CONCLUSIONS: The findings of the present study indicate that, although some of the susceptibility loci are shared between PCV and nAMD, a unique genetic signature may decide the pathogenesis of PCV. PMID- 29323773 TI - Direct Fiber-Reinforced Interim Fixed Partial Dentures: Six-Year Survival Study. AB - PURPOSE: Mechanical and optical studies of glass fiber composites have revealed great resistance and satisfactory bonds between the glass fibers and composite resins. This study aimed to evaluate the long-term survival of anterior and posterior direct glass fiber-reinforced composite (FRC) fixed partial dentures (FPD). MATERIALS AND METHODS: Twenty-three patients (9 men, 14 women) aged 18 to 67 received 23 d-FRC-FPDs. The frameworks of the FPDs were unidirectional pre impregnated glass fibers (ever Stick C&B). The retainers were inlay composite resin retainers (n1 = 19) and composite resin wings (n2 = 4). The FPD that used inlay retainers and composite resin wing retainers was called the hybrid design. The mean follow-up period was 4.91 years with 12-month check-ups performed by two independent operators. The survival rates of the glass fiber FPDs were determined. RESULTS: Six-year survival rates for the two types of FPDs were 94.7% for the inlay retainer type versus 25% for the hybrid type, with a statistically significant difference (log-rank test chi2 (1) = 11.422, p = 0.001). The inlay retainers were functional, with only one patient with a fracture line in the connector held by the glass fibers. Kaplan-Meier survival curves were drawn to show the difference between the two types of retainers. CONCLUSION: According to the results of this study, these long-term interim FRC-FPD were resistant enough to allow mastication, minimally invasive and also esthetic, with inlay composite retainers as the better solution. PMID- 29323774 TI - Obesity Impairs Oligopeptide/Amino Acid-Induced Ghrelin Release and Smooth Muscle Contractions in the Human Proximal Stomach. AB - SCOPE: The satiation properties of proteins involve effects on gut peptide release and gastrointestinal motility which may be altered during obesity. This study compares the in vitro response and role of amino acid (AA) taste receptors (TASR) in the effect of AAs and a casein hydrolysate on ghrelin release and smooth muscle (SM) contractions in the proximal gut of lean and obese patients. METHODS AND RESULTS: Basal ghrelin release, measured from mucosal segments, is maximal in the fundus and decreased distally. Obesity selectively impaires the stimulatory effect of a casein hydrolyaste on ghrelin release in the fundus but does not affect its inhibitory effect in the small intestine (SI). The SM contractions induced by a casein hydrolysate and AAs are stronger in strips from the SI than from the fundus but are reduced in the stomach of obese patients. The region-dependent expression of AA-TASRs in the mucosa and SM layer is affected by obesity. Most of the AA-induced responses are reduced by the umami antagonist, lactisole. l-Met-induced responses involve bitter taste receptors. CONCLUSION: Region-specific targeting of AA taste receptors on both enteroendocrine and SM cells with specific AA-enriched diets might be a useful strategy to combat obesity as well as hypomotility disorders. PMID- 29323775 TI - Van't Hoff analysis in chiral chromatography. AB - The present review discusses the theory and application of van't Hoff analysis in chiral chromatography, with main focus on liquid chromatography. The topics considered include the physical meaning of van't Hoff equation's parameters, interpretation of thermodynamic data in terms of retention and enantioseparation mechanisms, abnormal behavior of van't Hoff plots, and best practices to avoid biased results. PMID- 29323772 TI - The role of Nrf2 signaling in counteracting neurodegenerative diseases. AB - The transcription factor Nrf2 (nuclear factor-erythroid 2 p45-related factor 2) functions at the interface of cellular redox and intermediary metabolism. Nrf2 target genes encode antioxidant enzymes, and proteins involved in xenobiotic detoxification, repair and removal of damaged proteins and organelles, inflammation, and mitochondrial bioenergetics. The function of Nrf2 is altered in many neurodegenerative disorders, such as Huntington's disease, Alzheimer's disease, amyotrophic lateral sclerosis, and Friedreich's ataxia. Nrf2 activation mitigates multiple pathogenic processes involved in these neurodegenerative disorders through upregulation of antioxidant defenses, inhibition of inflammation, improvement of mitochondrial function, and maintenance of protein homeostasis. Small molecule pharmacological activators of Nrf2 have shown protective effects in numerous animal models of neurodegenerative diseases, and in cultures of human cells expressing mutant proteins. Targeting Nrf2 signaling may provide a therapeutic option to delay onset, slow progression, and ameliorate symptoms of neurodegenerative disorders. PMID- 29323776 TI - Remineralization of Natural Human Carious Dentin Lesions with an Experimental Whisker-Reinforced Atraumatic Restorative Treatment Composite. AB - PURPOSE: To evaluate the remineralization of natural human dentin caries with an experimental whisker-reinforced Atraumatic Restorative Treatment (ART) composite. MATERIALS AND METHODS: Teeth with moderate active dentin caries were prepared with caries-disclosing dye and hand instruments, restored with ART or resin modified glass ionomer cement (RM-GIC), and then wet sliced into 120-MUm sections with 15 sections in each group. After taking transverse microradiographs and implementing digital image analysis to determine the "mineral-loss-before," each section was incubated in artificial saliva solution (pH = 7.0) for 4 weeks and 8 weeks with 1 hour each workday in demineralization solution (pH = 4.3). Transverse microradiographs of each section were retaken, and the "mineral-loss after" was determined. The remineralization was calculated from [1-("mineral-loss after"/"mineral-loss-before")] * 100%. Results were statistically analyzed with a repeated-measures ANOVA with one within-subject factor (time: 4 and 8 weeks) and one between-subject factor (material: ART and RM-GIC) (alpha = 0.05). RESULTS: The statistical analysis indicated that ART composite resulted in significantly higher remineralization than the RM-GIC (p <= 0.05). For the remineralization of each material, there was a statistical difference between 4 weeks and 8 weeks (p <= 0.05). CONCLUSIONS: This experimental ART composite remineralized natural human dentin caries better than the RM-GIC. PMID- 29323777 TI - Optimization of the surface modification process of cross-linked polythiol-coated chiral stationary phases synthesized by a two-step thiol-ene click reaction. AB - A new platform technology for the preparation of stable chiral stationary phases was successfully optimized. The chiral selector tert-butylcarbamoylquinine was firstly covalently connected to the polymer poly(3-mercaptopropyl)methylsiloxane by thiol-ene click reaction. Secondly, the quinine carbamate functionalized polysiloxane conjugate was coated onto the surface of vinyl modified silica particles and cross-linked via thiol-ene click reaction. The amount of polysiloxane, chiral selector, radical initiator, reaction solvent (chloroform and methanol), reaction time, and pore size of the supporting silica particles were varied and systematically optimized in terms of achievable plate numbers while maintaining simultaneously enantioselectivity. The optimization was based on elemental analysis data, chromatographic results, and H/u-curves (Van Deemter) of the resultant chiral stationary phases. The results suggest that better chromatographic efficiency (higher plate numbers) at equal enantioselectivity can be achieved with methanol (a poor solvent for the polysiloxane that is dispersed rather than dissolved) and a lower film thickness of quinine carbamate functionalized polysiloxane. In this study, chiral stationary phases based on 100 A silica slightly outperformed 200 A silica particles (each 5 MUm). The optimized two step material exhibited significantly reduced mass transfer resistance compared to the one step material and equal performance as a brush-type chiral stationary phase. PMID- 29323778 TI - Antibiotics versus no antibiotics in the treatment of acute uncomplicated diverticulitis - a systematic review and meta-analysis. AB - BACKGROUND: Acute uncomplicated diverticulitis (AUD) is common and antibiotics are the cornerstone of traditional conservative management. This approach lacks clear evidence base and studies have recently suggested that avoidance of antibiotics is a safe and efficacious way to manage AUD. The aim of this systematic review is to determine the safety and efficacy of treating AUD without antibiotics. METHODS: A systematic search of Embase, Cochrane library, MEDLINE, Science Citation Index Expanded, and ClinicalTrials. gov was performed. Studies comparing antibiotics versus no antibiotics in the treatment of AUD were included. Meta-analysis was performed using the random effects model with the primary outcome measure being diverticulitis-associated complications. Secondary outcomes were readmission rate, diverticulitis recurrence, mean hospital stay, requirement for surgery and requirement for percutaneous drainage. RESULTS: Eight studies were included involving 2469 patients; 1626 in the non-antibiotic group (NAb) and 843 in the antibiotic group (Ab). There was a higher complication rate in the Ab group however this was not significant (1.9% versus 2.6%) with a combined risk ratio (RR) of 0.63 (95% CI, 0.25 to 1.57, p=0.32). There was a shorter mean length of hospital stay in the Nab group (standard mean difference of -1.18 (95% CI, -2.34 to -0.03 p= 0.04). There was no significant difference in readmission, recurrence and surgical intervention rate or requirement for percutaneous drainage. CONCLUSION: Treatment of AUD without antibiotics may be feasible with outcomes that are comparable to antibiotic treatment and with potential benefits for patients and the NHS. Large scale randomised multicentre studies are needed. This article is protected by copyright. All rights reserved. PMID- 29323779 TI - Effect of Different Liners on Fracture Resistance of Premolars Restored with Conventional and Short Fiber-Reinforced Composite Resins. AB - PURPOSE: To see whether applying four different liners under short fiber reinforced composite (SFRC), everX Posterior, compared to conventional composite resin, Z250, affected their strengthening property in premolar MOD cavities. MATERIALS AND METHODS: Mesio-occluso-distal (MOD) cavities were prepared in 120 sound maxillary premolars divided into 10 groups (n = 12) in terms of two composite resin types and 4 liners or no liner. For each composite resin, in 5 groups no liner, resin-modified glass ionomer (RMGI), conventional flowable composite (COFL), self-adhesive flowable composite resin (SAFL), and self adhesive resin cement (SARC) were applied prior to restoring incrementally. After water storage and thermocycling, static fracture resistance was tested. Data (in Newtons) were analyzed using two-way ANOVA (alpha = 0.05). RESULTS: Fracture resistance was significantly affected by composite resin type (p = 0.02), but not by the liner (p > 0.05). The interaction of the two factors was not statistically significant (p > 0.05). SFRC exhibited higher fracture strength (1470 +/- 200 N) compared to conventional composite resin (1350 +/- 290), irrespective of the application of liners. Application of SARC and SAFL liners led to a higher number of restorable fractures for both composite resins. CONCLUSIONS: The four liners can be used without interfering with the higher efficacy of SFRC, compared to conventional composite resins, to improve the fracture strength of premolar MOD cavities. PMID- 29323780 TI - Nurses' Perceptions on the Overuse of Health Services: A Qualitative Study. AB - PURPOSE: To examine whether nurses in Israel think there is overuse of health services, the reasons behind the issue, and ways to reduce the overuse. DESIGN: This was a qualitative study using semistructured interviews. A convenience sample of community care nurses from health clinics across Israel was interviewed. Interviews focused on common areas of overuse, outcomes of overuse, causes of overuse, and potential ways to address the issue. Interviews were recorded, transcribed, and analyzed thematically. FINDINGS: Overuse of antibiotics, imaging, blood tests, and prenatal surveillance were cited as main areas of health service overuse. Participants stated that negative outcomes of overuse could be seen at patient, health system, and population levels. Factors influencing overuse included patient satisfaction, physician fears, and insecurities. Potential interventions included improving physicians' diagnostic confidence, increasing appointment times, providing patients with more treatment information, and implementing a unified computerized system across medical institutions. CONCLUSIONS: Nurses mentioned physicians and patients as main actors in influencing overuse; hence, those populations should be researched further. The health system was identified as the responsible party to address the issue. Health system leaders must consider potential barriers, and investigate interventions that match current culture and context within the health system. CLINICAL RELEVANCE: Nurses can play an essential role in limiting overuse and mitigating subsequent harms to patients. PMID- 29323781 TI - Soil phosphorus does not keep pace with soil carbon and nitrogen accumulation following woody encroachment. AB - Soil carbon, nitrogen, and phosphorus cycles are strongly interlinked and controlled through biological processes, and the phosphorus cycle is further controlled through geochemical processes. In dryland ecosystems, woody encroachment often modifies soil carbon, nitrogen, and phosphorus stores, although it remains unknown if these three elements change proportionally in response to this vegetation change. We evaluated proportional changes and spatial patterns of soil organic carbon (SOC), total nitrogen (TN), and total phosphorus (TP) concentrations following woody encroachment by taking spatially explicit soil cores to a depth of 1.2 m across a subtropical savanna landscape which has undergone encroachment by Prosopis glandulosa (an N2 fixer) and other woody species during the past century in southern Texas, USA. SOC and TN were coupled with respect to increasing magnitudes and spatial patterns throughout the soil profile following woody encroachment, while TP increased slower than SOC and TN in topmost surface soils (0-5 cm) but faster in subsurface soils (15-120 cm). Spatial patterns of TP strongly resembled those of vegetation cover throughout the soil profile, but differed from those of SOC and TN, especially in subsurface soils. The encroachment of woody species dominated by N2 -fixing trees into this P-limited ecosystem resulted in the accumulation of proportionally less soil P compared to C and N in surface soils; however, proportionally more P accrued in deeper portions of the soil profile beneath woody patches where alkaline soil pH and high carbonate concentrations would favor precipitation of P as relatively insoluble calcium phosphates. This imbalanced relationship highlights that the relative importance of biotic vs. abiotic mechanisms controlling C and N vs. P accumulation following vegetation change may vary with depth. Our findings suggest that efforts to incorporate effects of land cover changes into coupled climate-biogeochemical models should attempt to represent C-N-P imbalances that may arise following vegetation change. PMID- 29323782 TI - The Effect of Surface Treatments on the Mechanical and Optical Behaviors of CAD/CAM Restorative Materials. AB - PURPOSE: To evaluate the effect of different surface treatments on mechanical and optical properties of lithium disilicate ceramic (IPS e.max CAD), 2 resin nanoceramics (Lava Ultimate, GC Cerasmart), and polymer-infiltrated ceramic network material (Vita Enamic). MATERIALS AND METHODS: CAD/CAM blocks were sectioned into 4 * 1 * 14 mm3 bars for three-point bending test and 1 * 8 * 8 mm3 square specimens were obtained for color and translucency measurements. Bar shaped and square specimens were divided into five groups according to the surface treatment method as: control (no treatment), hydrofluoric acid etching, airborne-particle abrasion, 2 W and 3 W Er,Cr:YSGG laser irradiation (n = 10). Three-point bending test was carried out on a universal test machine with a 1 mm/min crosshead speed. Color and translucency measurements were performed with a spectrophotometer and repeated after surface treatments. Flexural strength, translucency parameter, and DeltaE values were calculated and data were statistically analyzed using one-way ANOVA and Bonferroni post hoc tests. DeltaE values >1.2 and >2.7 were considered as perceptible and unacceptable, respectively. RESULTS: All surface treatment methods decreased the flexural strength of all tested materials (P < 0.05) except for 2 W laser-irradiated and airborne-particle abraded Vita Enamic and 2 W laser irradiated Lava Ultimate (P > 0.05). Color changes of lithium disilicate specimens were not perceptible except for airborne-particle abraded specimens. All DeltaE values of resin-based materials were above the perceptibility threshold. Acid-etched and 3 W laser irradiated GC Vita Enamic specimens revealed unacceptable color changes. The translucencies of resin-based materials significantly decreased after all surface treatment applications. CONCLUSIONS: Surface treatments affected the flexural strength and optical properties of CAD/CAM restorative materials. Er,Cr:YSGG laser irradiation with 2 W energy level may be an alternative surface treatment method for CAD/CAM materials. PMID- 29323783 TI - Chiral ligand exchange countercurrent chromatography: Enantioseparation of amino acids. AB - This work deals with the enantioseparation of alpha-amino acids by chiral ligand exchange high-speed countercurrent chromatography using N-n-dodecyl-l hydroxyproline as a chiral ligand and copper(II) as a transition metal ion. A biphasic solvent system composed of n-hexane/n-butanol/aqueous phase with different volume ratios was selected for each alpha-amino acid. The enantioseparation conditions were optimized by enantioselective liquid-liquid extractions, in which the main influence factors, including type of chiral ligand, concentration of chiral ligand and transition metal ion, separation temperature, and pH of the aqueous phase, were investigated for racemic phenylalanine. Altogether, we tried to enantioseparate 15 racemic alpha-amino acids by the analytical countercurrent chromatography, of which only five of them could be successfully enantioseparated. Different elution sequence for phenylalanine enantiomer was observed compared with traditional liquid chromatography and the proposed interactions between chiral ligand, transition metal ion (Cu2+ ), and enantiomer are discussed. PMID- 29323784 TI - Nano Silver Vanadate AgVO3 : Synthesis, New Functionalities and Applications. AB - Silver vanadates have been widely investigated because of their many interesting properties and their potential use in several applications. In addition to this, a large number of groups have investigated silver vanadates in the form of nanostructures. Here, we address first the synthesis and properties of nanosilver vanadate. Different techniques, such as precipitation, thermal decomposition, hydrothermal treatment, and sol-gel, are among the methods that have been employed for the controlled synthesis of silver vanadate. The use of nanosilver vanadate for the development of novel electronic devices, catalysts, and antibacterial agents for industry and biomedical applications will then be discussed. In this sense, the present review highlights the major advances regarding the synthesis, properties and applications of nanostructured silver vanadates. PMID- 29323785 TI - Crystal structure of the DNA-binding domain of the LysR-type transcriptional regulator CbnR in complex with a DNA fragment of the recognition-binding site in the promoter region. AB - : LysR-type transcriptional regulators (LTTRs) are among the most abundant transcriptional regulators in bacteria. CbnR is an LTTR derived from Cupriavidus necator (formerly Alcaligenes eutrophus or Ralstonia eutropha) NH9 and is involved in transcriptional activation of the cbnABCD genes encoding chlorocatechol degradative enzymes. CbnR interacts with a cbnA promoter region of approximately 60 bp in length that contains the recognition-binding site (RBS) and activation-binding site (ABS). Upon inducer binding, CbnR seems to undergo conformational changes, leading to the activation of the transcription. Since the interaction of an LTTR with RBS is considered to be the first step of the transcriptional activation, the CbnR-RBS interaction is responsible for the selectivity of the promoter to be activated. To understand the sequence selectivity of CbnR, we determined the crystal structure of the DNA-binding domain of CbnR in complex with RBS of the cbnA promoter at 2.55 A resolution. The crystal structure revealed details of the interactions between the DNA-binding domain and the promoter DNA. A comparison with the previously reported crystal structure of the DNA-binding domain of BenM in complex with its cognate RBS showed several differences in the DNA interactions, despite the structural similarity between CbnR and BenM. These differences explain the observed promoter sequence selectivity between CbnR and BenM. Particularly, the difference between Thr33 in CbnR and Ser33 in BenM appears to affect the conformations of neighboring residues, leading to the selective interactions with DNA. DATABASE: Atomic coordinates and structure factors for the DNA-binding domain of Cupriavidus necatorNH9 CbnR in complex with RBS are available in the Protein Data Bank under the accession code 5XXP. PMID- 29323786 TI - Pulmonary endoplasmic reticulum stress-scars, smoke, and suffocation. AB - Protein misfolding within the endoplasmic reticulum (ER stress) can be a cause or consequence of pulmonary disease. Mutation of proteins restricted to the alveolar type II pneumocyte can lead to inherited forms of pulmonary fibrosis, but even sporadic cases of pulmonary fibrosis appear to be strongly associated with activation of the unfolded protein response and/or the integrated stress response. Inhalation of smoke can impair protein folding and may be an important cause of pulmonary ER stress. Similarly, tissue hypoxia can lead to impaired protein homeostasis (proteostasis). But the mechanisms linking smoke and hypoxia to ER stress are only partially understood. In this review, we will examine the role of ER stress in the pathogenesis of lung disease by focusing on fibrosis, smoke, and hypoxia. PMID- 29323787 TI - Inhibition of UVSSA ubiquitination suppresses transcription-coupled nucleotide excision repair deficiency caused by dissociation from USP7. AB - Transcription-coupled nucleotide excision repair (TC-NER) is a subpathway of nucleotide excision repair that efficiently removes transcription-blocking DNA damage from the transcribed strands of active genes. UVSSA is a causative gene for UV-sensitive syndrome (UVS S), which is an autosomal recessive disorder characterized by hypersensitivity to UV light and deficiency in TC-NER. UV stimulated scaffold protein A (UVSSA), the product of UVSSA, forms a complex with ubiquitin-specific peptidase 7 (USP7) and is stabilized by interaction with USP7. The central region of UVSSA, which contains the tumor necrosis factor receptor associated factor (TRAF)-binding motif, is required for the interaction with the N-terminal TRAF domain of USP7. Here, we showed that UVSSA is mono-ubiquitinated in vitro and identified a lysine residue (Lys414 ) in UVSSA as the target of ubiquitination. The deubiquitination activity of USP7 was inhibited by the ubiquitin-conjugating enzyme UbcH6. Lys414 was also modified by poly-ubiquitin chains in vivo. UVSSA deficient in the interaction with USP7 is ubiquitinated and degraded by the proteasome, and the degradation leads to deficiency in TC-NER. The substitution of Lys414 by Arg of UVSSA inhibited its degradation and thereby suppressed the deficiency in TC-NER. PMID- 29323788 TI - Constructing Ordered Three-Dimensional TiO2 Channels for Enhanced Visible-Light Photocatalytic Performance in CO2 Conversion Induced by Au Nanoparticles. AB - As a typical photocatalyst for CO2 reduction, practical applications of TiO2 still suffer from low photocatalytic efficiency and limited visible-light absorption. Herein, a novel Au-nanoparticle (NP)-decorated ordered mesoporous TiO2 (OMT) composite (OMT-Au) was successfully fabricated, in which Au NPs were uniformly dispersed on the OMT. Due to the surface plasmon resonance (SPR) effect derived from the excited Au NPs, the TiO2 shows high photocatalytic performance for CO2 reduction under visible light. The ordered mesoporous TiO2 exhibits superior material and structure, with a high surface area that offers more catalytically active sites. More importantly, the three-dimensional transport channels ensure the smooth flow of gas molecules, highly efficient CO2 adsorption, and the fast and steady transmission of hot electrons excited from the Au NPs, which lead to a further improvement in the photocatalytic performance. These results highlight the possibility of improving the photocatalysis for CO2 reduction under visible light by constructing OMT-based Au SPR-induced photocatalysts. PMID- 29323789 TI - Mucosal ischaemia and bowel gangrene can have different treatment options in sigmoid volvulus. PMID- 29323790 TI - RNA-Templated Concatenation of Triplet Nucleic-Acid Probe. AB - Template-directed synthesis offers several distinct benefits over conventional laboratory creation, including unsurpassed reaction rate and selectivity. Although it is central to many biological processes, such an approach has rarely been applied to the in situ synthesis and recognition of biomedically relevant target. Towards this goal, we report the development of a three-codon nucleic acid probe containing a C-terminal thioester group and an N-terminal cysteine that is capable of undergoing template-directed oligomerization in the presence of an RNA target and self-deactivation in its absence. The work has implications for the development of millamolecular nucleic-acid probes for targeting RNA repeated expansions associated with myotonic dystrophy type 1 and other related neuromuscular and neurodegenerative disorders. PMID- 29323791 TI - Imine-Based Architectures at Surfaces and Interfaces: From Self-Assembly to Dynamic Covalent Chemistry in 2D. AB - Within the last two decades, dynamic covalent chemistry (DCC) has emerged as an efficient and versatile strategy for the design and synthesis of complex molecular systems in solution. While early examples of supramolecularly assisted covalent synthesis at surfaces relied strongly on kinetically controlled reactions for post-assembly covalent modification, the DCC method takes advantage of the reversible nature of bond formation and allows the generation of the new covalently bonded structures under thermodynamic control. These structurally complex architectures obtained by means of DCC protocols offer a wealth of solutions and opportunities in the generation of new complex materials that possess sophisticated properties. In this focus review we examine the formation of covalently bonded imine-based discrete nanostructures as well as one dimensional (1D) polymers and two-dimensional (2D) covalent organic frameworks (COFs) physisorbed on solid substrates under various experimental conditions, for example, under ultra-high vacuum (UHV) or at the solid-liquid interface. Scanning tunneling microscopy (STM) was used to gain insight, with a sub-nanometer resolution, into the structure and properties of those complex nanopatterns. PMID- 29323792 TI - The retinamide VNLG-152 inhibits f-AR/AR-V7 and MNK-eIF4E signaling pathways to suppress EMT and castration-resistant prostate cancer xenograft growth. AB - VNLG-152 is a novel retinamide (NR) shown to suppress growth and progression of genetically diverse prostate cancer cells via inhibition of androgen receptor signaling and eukaryotic initiation factor 4E (eIF4E) translational machinery. Herein, we report therapeutic effects of VNLG-152 on castration-resistant prostate cancer (CRPC) growth and metastatic phenotype in a CRPC tumor xenograft model. Administration of VNLG-152 significantly and dose-dependently suppressed the growth of aggressive CWR22Rv1 tumors by 63.4% and 76.3% at 10 and 20 mg.kg-1 bw, respectively (P < 0.0001), vs. vehicle with no host toxicity. Strikingly, the expression of full-length androgen receptor (f-AR)/androgen receptor splice variant-7 (AR-V7), mitogen-activated protein kinase-interacting kinases 1 and 2 (MNK1/2), phosphorylated eIF4E and their associated target proteins, including prostate-specific antigen, cyclin D1 and Bcl-2, were strongly decreased in VNLG 152-treated tumors signifying inhibition of f-AR/AR-V7 and MNK-eIF4E signaling in VNLG-152-treated CWR22Rv1 tumors as observed in vitro. VNLG-152 also suppressed the epithelial to mesenchymal transition in CWR22Rv1 tumors as evidenced by repression of N-cadherin, beta-catenin, claudin, Slug, Snail, Twist, vimentin and matrix metalloproteinases (MMP-2 and MMP-9) with upsurge in E-cadherin. These results highlight the promising use of VNLG-152 in CRPC therapy and justify its further development towards clinical trials. PMID- 29323793 TI - Atmospheric nitrogen deposition on petals enhances seed quality of the forest herb Anemone nemorosa. AB - Elevated atmospheric input of nitrogen (N) is currently affecting plant biodiversity and ecosystem functioning. The growth and survival of numerous plant species is known to respond strongly to N fertilisation. Yet, few studies have assessed the effects of N deposition on seed quality and reproductive performance, which is an important life-history stage of plants. Here we address this knowledge gap by assessing the effects of atmospheric N deposition on seed quality of the ancient forest herb Anemone nemorosa using two complementary approaches. By taking advantage of the wide spatiotemporal variation in N deposition rates in pan-European temperate and boreal forests over 2 years, we detected positive effects of N deposition on the N concentration (percentage N per unit seed mass, increased from 2.8% to 4.1%) and N content (total N mass per seed more than doubled) of A. nemorosa seeds. In a complementary experiment, we applied ammonium nitrate to aboveground plant tissues and the soil surface to determine whether dissolved N sources in precipitation could be incorporated into seeds. Although the addition of N to leaves and the soil surface had no effect, a concentrated N solution applied to petals during anthesis resulted in increased seed mass, seed N concentration and N content. Our results demonstrate that N deposition on the petals enhances bioaccumulation of N in the seeds of A. nemorosa. Enhanced atmospheric inputs of N can thus not only affect growth and population dynamics via root or canopy uptake, but can also influence seed quality and reproduction via intake through the inflorescences. PMID- 29323794 TI - Skills transfer to sinus surgery via a low-cost simulation-based curriculum. AB - BACKGROUND: Surgical skill development outside the operating room aims to improve technique and subsequent patient safety. The purpose of this study was to evaluate the correlation between technical and cognitive skills with cadaveric endoscopic sinus surgery (ESS) performance and change in ESS performance before and after implementation of a dedicated ESS simulation-based and knowledge-based curriculum. METHODS: A before-after study design was implemented among 10 medical students and 10 junior otolaryngology residents. Participants completed a knowledge-based, multiple-choice ESS pretest and watched an ESS prosection video. Participants performed 9 tasks on a previously validated low-cost, low technology, nonbiologic sinus surgery task trainer followed by cadaveric maxillary antrostomy and anterior ethmoidectomy. Participants then completed a simulation-based and knowledge-based ESS curriculum followed by a repeat cadaveric maxillary antrostomy and anterior ethmoidectomy. Performance was graded with a 5-point global rating scale (GRS) and a 5-point ESS-specific checklist. RESULTS: We observed a stronger correlation between the multiple-choice, knowledge-based, ESS pretest scores and cadaveric ESS GRS score (r = 0.73) than between task trainer performance and cadaveric ESS GRS score (r = 0.43). We also noted a significant increase in precurriculum vs postcurriculum mean +/- standard deviation (SD) cadaveric ESS checklist scores for both medical students (1.18 +/- 0.25 vs 2.58 +/- 0.57; p = 0.0002) and residents (2.09 +/- 0.78 vs 2.88 +/- 0.54; p = 0.023). The greatest improvements for residents were in performance of uncinectomy, enlargement of maxillary os, and identification of the bulla. CONCLUSION: These findings provide evidence supporting the use of ESS training curricula outside the operating room. PMID- 29323795 TI - A Pharmacokinetic Study of an Ibuprofen Topical Patch in Healthy Male and Female Adult Volunteers. AB - The pharmacokinetics of a novel locally applied ibuprofen topical patch was evaluated. Healthy subjects (n = 28) were administered a 200-mg ibuprofen patch every 24 hours for 5 days, and steady-state pharmacokinetics was determined. The amount of ibuprofen remaining in the patch following each patch removal was also assessed. The maximum steady-state drug concentration and area under the concentration curve from time 0 on day 5 (t = 0) to the 24-hours sample on day 6 were 514 ng/mL (95% CI 439 to 603 ng/mL) and 9.78 kg.h/mL (95% CI 8.43 to 11.4 kg.h/mL), respectively. Maximum ibuprofen concentration on day 5 occurred at 20 hours post-patch application. No evidence of drug accumulation was observed, and steady state was achieved between days 2 and 5. Ibuprofen levels attenuated rapidly to baseline within 24 hours after treatment discontinuation. The amount of ibuprofen remaining in the patch was high (>=80%). Treatment-emergent adverse events were generally mild, with the most prevalent being headache (n = 6; 21.4%). Only 4 TEAEs were considered related to the ibuprofen patch: paresthesia (n = 1), headache (n = 2), and pruritic rash (n = 1). The study found that the systematic absorption of ibuprofen from a 200-mg patch was low and that the levels of ibuprofen leaving the patch over a 24-hour period are consistent with levels required for therapeutic relief as shown in other studies. PMID- 29323796 TI - Treatment of chronic rhinosinusitis with dornase alfa in patients with cystic fibrosis: a systematic review. AB - BACKGROUND: A major component of sputum in cystic fibrosis (CF) patients is polymerized DNA, a byproduct of degraded neutrophils. Dornase alfa (dornase) selectively cleaves extracellular DNA and reduces the viscosity of sputum. It improves mucociliary clearance and pulmonary function. The benefit of dornase on CF-associated sinusitis is less clear. Therefore, the objective of this study was to systematically review the use of dornase on chronic rhinosinusitis (CRS) in CF patients. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta Analyses statement was followed for this systematic review. Ovid Medline, EMBASE, PubMed, and the Cochrane Library were searched. The search terms "dornase alfa," "deoxyribonucleases," "rhinosinusitis," and "cystic fibrosis" were used to find articles published between 1990 and 2016. The articles were reviewed for study design, level of evidence, and clinical outcomes. RESULTS: Sixty-two articles were identified; 6 met the inclusion criteria (104 patients). Improvement measured by sinonasal symptoms, endoscopic and radiographic findings, and pulmonary function was variably reported between the studies. Sinonasal symptoms were shown to improve in all studies with use of intranasal topical dornase. Three placebo-controlled studies showed that topical dornase significantly improved sinonasal symptoms more than saline alone. The impact on pulmonary function and radiographic and endoscopy findings was variable. CONCLUSION: Topical intranasal dornase appears to improve sinonasal symptoms in CF patients to a greater degree than saline alone. The impact on other outcomes is less clear. Larger studies are needed to fully elucidate the true efficacy of dornase alfa in the treatment of CRS in CF patients. PMID- 29323798 TI - Regarding Nursing Languages: Moving Beyond How We Feel. PMID- 29323799 TI - Knowledge, Perception, and Utilization of Standardized Nursing Language (SNL) (NNN) among Nurses in Three Selected Hospitals in Ondo State, Nigeria. AB - The use of standardized nursing languages helps nurses understand patients' needs with precision and speed. This study assessed the knowledge of standardized nursing languages (SNL); how nurses perceive SNL and nurses utilization of SNL. The study adopted a cross sectional research design. Participants were recruited using convenience sampling technique. Data was collected using 5-sectioned self structured questionnaires whose validity and reliability had been previously ascertained. Data collected was analyzed using Statistical Package for Social Sciences (SPSS) version 20. Results showed that majority of the nurses that participated in the study are female (83.8%). Only 60.0% of the nurses know the number of steps in nursing process while very few (5.4%) can correctly define what SNLs is. Knowledge of SNLs shows that 26.2% have high knowledge; 44.6% moderate knowledge while 29.2% had low knowledge. Utilization of SNL by nurses showed that Majority (83.8%) of the nurses in the study agreed that utilization of SNL help nurses to deliver quality nursing care; 67.7% of nurses agreed that the use of SNL makes nursing practice unique, 55.4% opined that the use of SNL can be cumbersome while only 24.6% often use nursing process for patients' care. Although, participants in this study agreed that the use of SNL is crucial to quality nursing care, with poor utilization. PMID- 29323800 TI - Erratum. PMID- 29323803 TI - Climate Change and Agriculture: Future Implications. PMID- 29323804 TI - The Changing Face of Hospital Medicine. PMID- 29323805 TI - Wisconsin Firearm Mortality, 2000-2014. AB - BACKGROUND: Despite low firearm mortality rates in Wisconsin, overall firearm fatalities continue to rise in recent years. In 2013, the statewide age-adjusted death rate due to firearms was 9.6 per 100,000 persons, the highest mark since the new millennium. This raises not only public safety concerns, but also raises questions regarding ongoing gun violence. OBJECTIVES: To describe the population and geographic characteristics of firearm mortality rates on population and geographic characteristics in Wisconsin. METHODS: Mortality data for firearm deaths caused by suicides, homicides and other death intent were obtained from the Wisconsin Interactive Statistics on Health (WISH) query system from 2000 through 2014. The probability of firearm fatality was analyzed through log-linear Poisson regression models to assess the variations of firearm mortality risks in relation to a person's sex, age, race/ethnicity, and region. RESULTS: Firearm violence is responsible for 14% of injury-related deaths in Wisconsin. Seventy two percent of firearm-related deaths were attributed to suicides; the majority of decedents were white men aged 45 years or older. The proportion of homicides by gun to all homicides increased from 63% in 2000 to 72% in 2014. Disproportionally high firearm homicides were found among black men aged 18 to 34 years in southeastern Wisconsin, accounting for 38% of the entire gun-related murder deaths. CONCLUSION: Our study shows that the association of the demographic and geographic characteristics with mortality rates differs among suicides, homicides and the other intent. Understanding characteristics associated with firearm related-deaths is the first step toward addressing them. PMID- 29323806 TI - Spine and Spinal Cord Injuries After Falls From Tree Stands During the Wisconsin Deer Hunting Season. AB - BACKGROUND: Deer hunting is popular in much of the United States. In Wisconsin, use of tree stands for hunting is common. Spine surgeons at a Level 1 Trauma Center observed a high incidence of spine and spinal cord injury due to falls from tree stands while hunting. This study's purpose is to systematically characterize and classify those injuries. METHODS: We reviewed the University of Wisconsin Hospital and Clinics' trauma database for tree stand-related injuries from 1999 to 2013. We collected and analyzed data pertaining to hunters' demographics, comorbidities, type and mechanism of injury, injury severity, and management. RESULTS: We identified 117 patients evaluated after a tree stand fall. Sixty-five (ages 16-76) suffered spine fractures that occurred at all levels, from occipital condyle to sacrum, with thoracolumbar compression and burst fractures being most common. Fractures occurred in the following locations: cranio-cervical junction (8.7%), cervical spine (7.6%), cervical-thoracic junction (6.5%), thoracic spine (32.6%), thoracolumbar junction (33.7%), and lumbar spine (10.9%). Twenty-one patients (32%) experienced a single spinal fracture; 44 patients (68%) suffered multiple spinal fractures. Twenty-five patients (38%) required surgical fixation; 19 patients experienced loss of neurologic function: 5 complete spinal cord injuries (SCI), 5 incomplete SCI, 2 central cord syndromes, and 8 radiculopathies. Two mortalities, both of cardiopulmonary etiology, were noted-one in a patient without a spine fracture and the other in a patient with a complete spinal cord injury at T4. CONCLUSIONS: The majority of spine fractures are treated nonoperatively. However, enough patients require surgical intervention that consultation with a neurosurgical or orthopedic spine surgeon is prudent. It is more common to have multiple spine fractures from a tree stand fall, therefore, it is recommended that if 1 fracture is identified the entire spine be evaluated for additional fractures. For safety, it is recommended that hunters wear and use safety harnesses appropriately. Additionally, keeping the height of the tree stand at 10 feet or less is associated with a lower likelihood of spinal cord injury. Further study is needed to determine additional interventions such as education that might reduce the injury frequency in this population. PMID- 29323807 TI - Impact of Obesity on Cesarean Delivery Outcomes. AB - BACKGROUND: The rate of cesarean delivery has increased over the last 2 decades. Obesity is a risk factor for complications during pregnancy and cesarean procedures. The objective of this study was to evaluate cesarean delivery outcomes in patients with vs without obesity, and determine the impact of obesity on complications. METHODS: The medical records of patients who underwent a cesarean delivery from 2010 to 2014 were reviewed. Patients were grouped by body mass index (BMI) into obese (>=30kg/m2) and non-obese (<30kg/m2) cohorts for comparison. RESULTS: Nine hundred seventy-one patients were included; 432 whom had obesity, and 539 did not have obesity. The rate of gestational diabetes was increased among patients with vs without obesity (15.3% vs 5.8%; P<0.001). Obesity was associated with an increased incidence of surgical site infections (8.1% vs 2.4%; P<0.001), yeast infection (2.8% vs 0.2%; P<0.001), and seroma (2.8% vs 0.4%; P=0.002). Obesity was an independent risk factor for surgical site infections, regardless of wound closure technique (adjusted odds ratio=3.24, 95% CI, 1.66-6.32; P<0.001). CONCLUSIONS: Obesity is a risk factor for wound infections after a cesarean delivery. As obesity rates increase, it is important to be aware of these risks after performing a cesarean delivery. PMID- 29323797 TI - Relations between cortical thickness, serotonin 1A receptor binding, and structural connectivity: A multimodal imaging study. AB - Serotonin 1A (5-HT1A ) receptors play a direct role in neuronal development, cell proliferation, and dendritic branching. We hypothesized that variability in 5 HT1A binding can affect cortical thickness, and may account for a subtype of major depressive disorder (MDD) in which both are altered. To evaluate this, we measured cortical thickness from structural magnetic resonance imaging (MRI) and 5-HT1A binding by positron emission tomography (PET) in an exploratory study. To examine a range of 5-HT1A binding and cortical thickness values, we recruited 25 healthy controls and 19 patients with MDD. We hypothesized increased 5-HT1A binding in the raphe nucleus (RN) would be negatively associated with cortical thickness due to reduced serotonergic transmission. Contrary to our hypothesis, raphe 5-HT1A binding was positively correlated with cortical thickness in right posterior cingulate cortex (PCC), a region implicated in the default mode network. Cortical thickness was also positively correlated with 5-HT1A in each cortical region. We further hypothesized that the strength of 5-HT1A -cortical thickness correlation depends on the number of axons between the raphe nucleus and each region. To explore this we related 5-HT1A -cortical thickness correlation coefficients to the number of tracts connecting that region and the raphe, as measured by diffusion tensor imaging (DTI) in an independent sample. The 5-HT1A -cortical thickness association correlated significantly with the number of tracts to each region, supporting our hypothesis. We posit a defect in the raphe may affect the PCC within the default mode network in MDD through serotonergic fibers, resulting in increased ruminative processing. PMID- 29323808 TI - Adolescent Preferences for Topics Addressed During Well Visits. AB - BACKGROUND: Current evidence is limited regarding the topics adolescents want to discuss with clinicians during routine well visits. High school students were surveyed to determine potential adolescent discussion topics, barriers to discussion, and ways to promote dialogue. METHODS: Surveys were distributed between October 2014 and January 2015 to 102 students in the Verona Area High School in Verona, Wisconsin. RESULTS: Of the topics presented, teens preferred to discuss vaccines and mood/stress with their clinicians. Young women were more likely to prefer gender congruent clinicians, especially when discussing sex or body image. The majority of teens felt that information discussed with their physician would be revealed to parents or the authorities. CONCLUSIONS: In limited time with teens, it is important for clinicians to reinforce confidentiality to gain their trust. Clinicians can improve rapport with adolescents by revealing information about themselves, conveying genuine caring, and considering community involvement. Male clinicians need to work on improving rapport, especially when talking with female adolescents about sex, body image, stress, and mood. Clinicians should consider including mood, stress, and vaccine discussions in their adolescent well visits. PMID- 29323809 TI - Case Report of an Ectopic Molar Pregnancy in the Presence of an Intrauterine Device. AB - BACKGROUND: Ectopic molar pregnancy is a rare phenomenon and has not been reported in the presence of an intrauterine device (IUD). Clinical diagnosis of molar pregnancy is challenging and requires careful follow-up. CASE: A 25-year old woman (gravida 2, para 0) with a copper IUD in place presented with a positive pregnancy test. Diagnosis of the complete hydatidiform mole was pathologically confirmed after surgery following clinical and sonographic investigations that identified a left-sided ectopic pregnancy. CONCLUSION: Gestational trophoblastic disease (GTD) presenting as an ectopic pregnancy is a very rare occurrence. This patient recovered without event through a combined management and follow-up for ectopic pregnancy and gestational trophoblastic disease. Appropriate identification and management of this clinical problem is essential in order to prevent initial complications as well as subsequent malignant sequelae. PMID- 29323810 TI - Hospital Medicine and Fellowship Program in Rural North Dakota - A Multifaceted Success Story. AB - INTRODUCTION: Recruitment of hospitalists and primary care physicians for Critical Access Hospitals and tertiary care hospitals in North Dakota is difficult. To address this challenge, 2 programs were implemented in Bismarck, North Dakota. METHODS: St. Alexius Medical Center created a hospitalist fellowship training program in collaboration with the University of North Dakota School of Medicine and Health Sciences and physicians willing to work in Critical Access Hospitals were offered a joint appointment to teach hospitalist fellows and obtain a clinical academic appointment at the university. RESULTS: Since it was created in 2012, 84 physicians have applied for 13 fellowships. Of the 11 fellows who have completed the program, 64% (7/11) remained in North Dakota to practice. CONCLUSIONS: Physicians are more likely to work in a rural Critical Access Hospital if they spend time working at a tertiary care center and have clinical academic appointments. Where recruitment is challenging, hospitalist fellowship programs are helpful in meeting the health care workforce demand. PMID- 29323811 TI - 'Are You the Man?' and 'Patriotism'. PMID- 29323812 TI - The United States' Research Enterprise. PMID- 29323813 TI - Antibiotic Stewardship in the Outpatient Setting. PMID- 29323814 TI - Physician Advocacy is ProAssurance's Specialty. PMID- 29323815 TI - How Physicians Can Save 56 Hours Per Year. PMID- 29323816 TI - An Epidemic, a Scourge, or a Plague. PMID- 29323817 TI - The National Opioid Epidemic: Local, State, and National Responses. PMID- 29323818 TI - Opioid Use for Treatment of Chronic Pain: An Overview and Treatment Guideline for Injured Workers Responses. PMID- 29323819 TI - The Use of a Statewide Prescription Drug Monitoring Program by Emergency Department Physicians. AB - BACKGROUND: Little is known about how emergency physicians have used Wisconsin's Prescription Drug Monitoring Program (PDMP). OBJECTIVE: To characterize emergency physician knowledge and utilization of the program and how it modifies practice. METHODS: Online survey data were collected 1 year after program implementation. Descriptive statistics were generated and qualitative responses were grouped by content. RESULTS: Of the 63 respondents, 64.1% had used the program. Lack of a DEA number and knowledge about how to sign up were the most common barriers to registration. Over 97% of program users found it useful for confirming suspicion of drug abuse and 90% wrote fewer prescriptions after program implementation. Time constraints and the difficult log-in process were common barriers to use. More users than nonusers stated that their workplace was supportive of program use. CONCLUSIONS: Although barriers exist, PDMP utilization appears useful to emergency physicians and associated with modifications to patient management. PMID- 29323820 TI - Genetics and Genomics in Clinical Practice: The Views of Wisconsin Physicians. AB - INTRODUCTION: Decreasing costs and increased availability of genetic testing and genome sequencing mean many physicians will consider using these services over the next few years. Despite this promising future, some argue the present roadmap for translating genetics and genomics into routine clinical practice is unclear. OBJECTIVE: We conducted a pilot study to explore Wisconsin physicians' views, practices and educational desires regarding genetic and genomic testing. METHODS: Our study consists of an Internet survey (n=155) conducted in August and September 2015 and follow-up phone interviews with a portion of survey participants. Physicians of all specialties were invited to participate. Variables measured include physicians' general knowledge and experience regarding genetic and genomic testing, attitudes and perceptions toward these tests, testing intentions, and educational desires. Sociodemographic variables included gender, age, and medical specialty. RESULTS: In our exploratory survey of Wisconsin physicians, adult primary care providers (PCPs) lagged behind other providers in terms of familiarity and experience with genetic and genomic testing. PCPs in our sample were less likely than other physicians to feel their training in genetics and genomics is adequate. Physicians younger than 50 were more likely than older colleagues to feel their training is adequate. CONCLUSIONS: Our exploratory study suggests a gap in physician education and understanding regarding genomic testing, which is fast becoming part of personalized medical care. Future studies with larger samples should examine ways for physicians to close this gap, with special focus on the needs of PCPs. PMID- 29323822 TI - Hand Hygiene Among Health Care Workers: Is Educating Patients and Families a Feasible Way to Increase Rates? AB - BACKGROUND: The Centers for Disease Control and Prevention has recommended teaching patients to remind health care workers to disinfect their hands. However, cognitive impairment among patients may hamper such efforts. METHODS: The St. Louis University Mental Status (SLUMS) Examination was administered to randomly selected inpatients at the Omaha VA Medical Center in Omaha, Nebraska. We asked patients and their families about attitudes toward reminding health care workers to disinfect their hands: willingness, feeling comfortable, and feeling responsible. RESULTS: Of 143 patients, 94 completed SLUMS; 9 had normal mental status and appropriate attitudes. Overall, 16 encounters involved patients or family who were well-suited for giving reminders. CONCLUSION: Programs to encourage hospitalized adults to remind staff to perform hand hygiene may encounter barriers related to cognitive impairment and attitudes. PMID- 29323821 TI - Implementing Population Medicine in a Pain Management Practice. AB - PURPOSE: To document and improve the quality of our chronic pain management using population management methods. METHODS: An analytic registry was developed, and all new patients were enrolled for 12 months. Patient demographics, standardized pain and function measures, and treatments were recorded. Usual care was provided. The registry was used to organize care and analyze management and outcomes. RESULTS: Of 454 total patients, only 154 (34%) completed a 6-month cycle of care. High no-show rates were documented for follow-up appointments for several reasons. The majority of 6-month completers showed improved pain levels. DISCUSSION: This quality improvement project identified assessment and care gaps and led to improvements. An ongoing need to improve measures of pain and function was documented. PMID- 29323823 TI - Atrioesophageal Fistula: A Rare Complication of Radiofrequency Ablation. AB - 75-year-old woman was admitted with fever, chills, altered mentation, and right sided weakness. A month earlier, she had undergone catheter radiofrequency ablation for treatment of chronic atrial fibrillation. A magnetic resonance imaging scan of her brain revealed septic emboli with multiple bilateral cerebral and cerebellar infarcts, as well as extensive bilateral leptomeningeal enhancement. Blood cultures were positive for Streptococcus mitis, Rothia mucilaginosa, Streptococcus pneumonia, and Candida albicans, which suggested a connection between gastrointestinal and cardiovascular systems. A chest computed tomography scan with contrast showed a curvilinear low attenuation structure communicating between the esophagus and the left pulmonary vein-an atrioesophageal fistula. Ten days after admission, the patient died from multiple cerebral septic emboli secondary to atrioesophageal fistula following radiofrequency ablation. PMID- 29323824 TI - A Case of Atypical Synovitis-Acne-Pustulosis-Hyperostosis-Osteitis (SAPHO) Syndrome Presenting With Osteomyelitis of the Clavicle. AB - Synovitis-acne-pustulosis-hyperostosis-osteitis (SAPHO) syndrome is considered after exclusion of infection and arthritis; however, microbial infection may be present in osteoarticular lesions of these patients. Chronic osteomyelitis and associated bacterial infection were detected in a recurrent osteoarticular lesion in an adolescent patient with a history of clavicle pain, who complained of recurrent swelling in the left clavicle. Most pediatric case reports of SAPHO syndrome describe patients with associated skin conditions. This case report describes a patient diagnosed with SAPHO syndrome with no associated skin condition. Although SAPHO syndrome is characterized by dermatological and osteological symptoms, this acronym describes a collection of recurring symptoms. Complete patient medical history and thorough testing, including radiology and biopsy, are critical for prompt diagnosis and treatment of this condition, particularly in pediatric patients with persistent skeletal pain. PMID- 29323826 TI - Transforming Medical Education. PMID- 29323825 TI - Working to Address the Opioid Crisis. PMID- 29323827 TI - Understanding the Medicare Quality Payment Program. PMID- 29323828 TI - The Problem With US Health Care: It Ain't Obamacare! PMID- 29323829 TI - Working With Communities Toward Health Equity. PMID- 29323830 TI - The Vision Spirit. PMID- 29323832 TI - Influences of a Church-Based Intervention on Falls Risk Among Seniors. AB - BACKGROUND AND OBJECTIVES: Prior studies illustrate that community-based programs effectively decrease falls risk in older adults and that faith-based programs improve health behaviors. The literature is unclear whether faith-based initiatives reduce seniors' fall risks. To tackle this gap, a long-term partnership led by 10 urban churches, a nearby nursing school, and a medical school developed a study with 3 objectives: determine baseline health concerns associated with falls (eg, depression, polypharmacy), implement a nurse-led, faith-based health education initiative for community-dwelling African American seniors at-risk of hospitalization, and assess pre- to post -program fall frequency. METHODS: The 100 Healthy, At-Risk Families study team implemented 8 monthly educational health sessions promoting self-care and social support. Community nurses led the 60- to 90-minute sessions at each of 10 churches. To collect study data, nurses interviewed enrolled seniors pre- and post intervention. Descriptive and comparison statistics were analyzed in Excel and Statistical Package for Social Sciences. RESULTS: Senior data at baseline found high rates of polypharmacy and physical imbalance, and no significant depression or gaps in social support. There was not a statistically significant change pre- to post-program in fall frequency "in prior year." CONCLUSIONS: Study findings reveal insights about African American senior health and fall risks. Church settings may provide a protective, psychosocial buffer for seniors, while polypharmacy and mobility/balance concerns indicate need for continued attention to fall risks. No increase in pre- to post-program falls was encouraging. PMID- 29323833 TI - Wheels For All: Addressing Social Determinants of Health One Bicycle at a Time. AB - BACKGROUND: Wheels For All provides bicycles to individuals in La Crosse, Wisconsin to address the transportation barrier that often inhibits low-income individuals' ability to access community resources. METHODS: Recipients are referred by social service, health care, or other community agencies based on their need for transportation or exercise. Donated bicycles are matched to a recipient, repaired, and delivered personally by volunteers. RESULTS: Through collaboration with social service agencies, health care systems, and the community at-large, Wheels For All received referrals from 21 different sources and provided 101 recipients with bicycles from April 2015 to July 2017. CONCLUSION: Using a cost-effective, community-engagement model, Wheels For All provides a means of transportation for recipients, resulting in an enhanced ability to access community resources. PMID- 29323831 TI - Biking for Health: Results of a Pilot Randomized Controlled Trial Examining the Impact of a Bicycling Intervention on Lower-Income Adults. AB - INTRODUCTION: This pilot study tested the efficacy of a bicycling intervention targeting inactive, low-income, overweight adults on reducing perceived barriers to bicycling, increasing physical activity, and improving health. METHODS: A nonblinded 2-site randomized controlled trial was conducted in Milwaukee, Wisconsin, in summer 2015. Participants included members from 1 largely Latino community and a second primarily African American neighborhood. A certified bicycling instructor led a 12-week bicycling intervention. Outcome measures including biking-related attitudes, self-reported physical activity, fitness as measured by the 6-minute step test, and biometric data were collected at baseline, 12 weeks, and 20 weeks. RESULTS: Thirty-eight participants completed the study. Barriers to bicycling declined significantly among intervention group participants at 12 weeks with some declines persisting to 20 weeks. Bicycling for leisure or non work transportation increased significantly more in the intervention than control group from baseline to 12 weeks but this difference attenuated by 20 weeks. Both groups increased their fitness between baseline and 12 weeks, with a trend towards greater gains in the bicycling intervention group. No significant change in biometric measurements was seen at either 12 weeks or 20 weeks. CONCLUSION: Despite the small study size, this bicycling intervention decreased perceived barriers to bicycling and increased bicycling activity in low income minority participants. These findings support a larger-scale study to measure fitness and health changes from bicycling interventions. PMID- 29323834 TI - !Venga Y Relajese! Pilot Stress Reduction Program for Migrant Latina Women Living in Low-Resource Settings From Milwaukee to Lima. AB - Latina women living in low-income communities frequently report a high prevalence of feeling physically and/or emotionally "unwell." Formative focus groups were used to design a 3-session stress reduction curriculum called !Venga y Relajese! (Come and relax yourself!). Survey data from 5 Milwaukee cohorts and 1 Peruvian cohort revealed statistically significant improvements in general health status, perceived stress status, and confidence to manage future stress among women who completed all sessions (n=54). The pilot !Venga y Relajese! stress reduction curriculum yielded benefits for Latina women living in low-income neighborhoods in Milwaukee, Wisconsin and Lima, Peru. PMID- 29323835 TI - Recurring Vivid Dreams in an Older Hmong Man With Complex Trauma Experience and Cognitive Impairment. AB - INTRODUCTION: Health care workers need to consider the culture and ethnic preferences prevalent in the Hmong community in order to provide optimal care. We describe an older Hmong man to illustrate the challenges faced and competencies needed by primary care. CASE PRESENTATION: An 80-year-old non-English speaking Hmong man with diabetes, nerve sheath tumor, and hypertension presented to the outpatient clinic with his grandson complaining of sleep problems. He had had 2 vivid recurring dreams during the previous few months. Memory assessment was significant for dementia. DISCUSSION: This case addresses the complexity in taking care of a non-English speaking Hmong older man who has memory loss, trauma in adulthood, multiple caregivers, and sleep problems. CONCLUSIONS: A careful history from patient and family to get to know their cultural preferences and attitudes was helpful. Identification of the primary caregiver was critical in providing care. PMID- 29323837 TI - What Constitutes Prosperity. PMID- 29323836 TI - Segmental Arterial Mediolysis: An Unusual Case Mistaken to be a Strangulated Hernia. AB - INTRODUCTION: Segmental arterial mediolysis (SAM) is a rare nonatherosclerotic, noninflammatory vasculopathy causing arterial wall necrosis that leads to strictures, dissections, and aneurysms, particularly in medium-sized abdominal arteries. Awareness of SAM is important because, unlike vasculitides, immunosuppressive treatment may worsen the disease process. CASE: A 58-year-old man with multiple medical comorbidities presented with acute epigastric pain and a right incarcerated inguinal hernia that was interpreted as showing bowel strangulation on computed tomography. The hernia was unable to be reduced in the emergency department, so the patient was taken for open reduction by the surgical service. Intraoperatively, he was noted to have a ruptured superior mesenteric artery aneurysm. Conventional angiography demonstrated a bead-like appearance of several jejunal branches of the superior mesenteric artery, raising concern for a vasculitis. His hospital course included rheumatologic consultation, and initial recommendations were to start immunosuppressive therapy for treatment of polyarteritis nodosa. Further testing demonstrated normal antinuclear antibody, antineutrophil cytoplasmic antibodies, and complement levels. Due to a lack of systemic symptoms or signs and otherwise unremarkable laboratory evaluation, the patient ultimately was diagnosed with SAM and immunosuppressive therapy was halted. DISCUSSION: Unexplained medium arterial stenosis, dissection, aneurysm, and hemorrhage should raise suspicion for possible SAM. The initial management approach should focus on treatment of the acute hemorrhage, usually involving endovascular stenting or coil embolization. Unlike vasculitides, SAM does not benefit from, and may actually be harmed by, immunosuppressive therapy. CONCLUSIONS: Clinicians involved in the longitudinal care of emergency department patients should be aware of this rare clinical entity in order to initiate appropriate treatment. PMID- 29323838 TI - Embracing Innovation in Medical Education. PMID- 29323839 TI - Alcohol Use Increasing Among Adults 65 and Older. PMID- 29323840 TI - Phosphazide (nikavir) is a highly effective drug for the treatment of HIV/AIDS infection. AB - Federation Convincing evidence for high therapeutic activity and tolerability of Phosphazide in the treatment of HIV/AIDS-infection is given. Phosphazide is currently used in various regimens of highly active antiretroviral therapy, as well as in the HIV therapy in patients with simultaneously acquired chronic hepatitis C or tuberculosis. Therapeutic possibilities of Phosphazide were clearly manifested in the prevention of HIV transmission from mother to child. There is every reason to use Phosphazide in first-line antiretroviral therapy. PMID- 29323841 TI - Influenza A virus in the Western Arctic. AB - Small bays of bird bazaars of the Arctic Kola Peninsula (Barents Sea) have been studied. RNA of influenza A virus was found in the surface microlayer (SM) and aerosol samples from the bays located beneath bird colonies. The nucleotide sequencing of the PCR fragments from the SM and the sea aerosol showed their identity for each bay. Virus transfer mechanism along the "surface microlayer - sea aerosol" path has been proposed. The kinetic scheme of the virus-host environment interaction, which allows the dependence of the viral population size on the temperature to be simulated, has been developed. PMID- 29323842 TI - A new method of producing NS5A antigen of hepatitis C virus. AB - A task of creating a universal platform for engineering affordable recombinant producers of viral proteins conserving immunogenicity has not been solved yet. High toxicity of the viral proteins for the host cells, low yield and abnormal folding of the products often present severe obstacles to obtaining producers of the viral proteins. In this work, we report a new method of engineering and screening of deletion libraries from the viral antigen genes. This method allows selection of artificial derivatives of these genes adapted for expression in microbial producer cells. The method involves PCR amplification of the gene fragments using a system of randomized and adapter primers, which allows the spontaneous formation of duplexes from the random primers in the absence of the template DNA to be prevented. For selecting variants capable of in vivo expression, the obtained PCR products are cloned to a special vector of a direct phenotypical selection pQL30. It contains E. coli beta-galactosidase gene with an inserted polylinker producing a frame-shift mutation. Using this screening method, an artificial variant of hepatitis C (HCV) NS5a gene with optimal biotechnological properties was established. 27 clinical specimens of 1670 bp long HCV1b NS5a fragments were used as a source gene. A PCR bank of the deletion derivatives was produced. 40 LacZ-positive clones based on pQL30 vector with a 50 700 bp long insertion were selected. The LacZ activity of the cell lysates and the immunogenicity of the products were tested. As a result, a single clone encoding a soluble protein with Mr = 114 kDa was selected. Its yield reached 0.3% of the total cell protein. It was highly reactive with sera of HCV 1b infected patients but not with sera of the healthy donors. PMID- 29323843 TI - An experience in the clinical use of specific immunoglobulin from horse blood serum for prophylaxis of Ebola haemorrhagic fever. AB - The aim of this work was to estimate the efficacy and safety of single intramuscular introduction of specific heterologous immunoglobulin as prophylactic drug against Ebola hemorrhagic fever. Materials and methods. The specific heterologous immunoglobulin was introduced as a special prophylactic drug to 28 patients in epidemic situations, after skin hurt with infectious materials or contact with infectious blood. Clinico-laboratory observation was performed in 24 subjects after single intramuscular introduction of heterologous immunoglobulin Ebola. The samples of blood serum were investigated for immunoglobulin Ebola and antibodies to horse gamma-globulin on the 30th and 60th days after prophylaxis. Results. None of the subjects of the study contracted Ebola fever. There were no anaphylactic reactions after special prophylaxis with specific heterologous immunoglobulin. Among the subjects with normal allergic state 31% responded with local reactions; 13%, with a general reaction (mild case of the serum disease). Almost no reaction was observed in patients with unfavorable allergic state subjected to desensitizing therapy; in the absence of desensitizing therapy, 50% of patients with unfavorable allergic state exhibited local reactions; 17%, mild cases of the serum disease; 33%, moderate cases of the serum disease. In summary, if the tactics of immunoglobulin application was right, the quantity of local allergic reactions was 28%; of wide spread reactions, 6%. Weak serum disease was observed in 11% of the subjects. The prognostic period of resistance to Ebola fever was less than 30 days. Conclusion. The prophylactic use of specific immunoglobulin from horse blood serum against hemorrhagic Ebola fever is effective and relatively safe in patients subjected to desensitizing therapy. PMID- 29323844 TI - Comparative analysis of genomes of tick-borne encephalitis virus strains isolated from mosquitoes and ticks. AB - The tick-borne encephalitis virus (TBEV) strain Lazo MP36 was isolated from the pool of mosquitoes Aedes vexans collected in Lazo region of Khabarovsk territory in August 2014. Phylogenetic analysis of the strain Lazo MP36 complete genome (GenBank accession number KT001073) revealed its correspondence to the TBEV Far Eastern subtype and differences from the following strains: 1) from ticks Ixodes persulcatus P. Schulze, 1930 [vaccine strain 205 (JX498939) and strains Khekhtzir 1230 (KF880805), Chichagovka (KP844724), Birobidzhan 1354 (KF880805) isolated in 2012-2013]; 2) from mosquitoes [strain Malyshevo (KJ744034) isolated in 1978 from Aedes vexans nipponii in Khabarovsk territory; strain Sakhalin 6-11 isolated from the pool of mosquitoes in 2011 (KF826916)]; 3) from human brain [vaccine strain Sofjin (JN229223), Glubinnoe/2004(DQ862460). Kavalerovo (DQ862460), Svetlogorie (DQ862460)]. The fusion peptide necessary for flavivirus entry to cells of the three TBEV strains isolated from mosquitoes (Lazo MP36, Malyshevo and Sakhalin 6 11) has the canonical structure 98-DRGWGNHCGLFGKGSI-113 for the tick-borne flaviviruses. Amino acid transition H104G typical for the mosquito-borne flaviviruses was not found. Structures of 5'- and 3'-untranslated (UTR) regions of the TBEV strains from mosquitoes were 85-98% homologous to the TBEV strains of all subtypes without recombination with mosquito-borne flaviviruses found in the Far East of Russia. Secondary structures of 5'- and 3'-UTR as well as cyclization sequences (CS) of types a and B are highly homologous for all TBEV isolates independently of the biological hosts and vectors. similarity of the genomes of the TBEV isolates from mosquitoes, ticks and patients as well as pathogenicity of the isolates for new-borne laboratory mice and tissue cultures might suggest a possible role of mosquitoes in the TBEV circulation in natural foci as an accidental or additional virus carrier. PMID- 29323845 TI - Development of the suppository form of human immunoglobulin preparation with high titers of antibodies to herpes simplex virus types 1 and 2 for the treatment of chronic forms of herpetic disease. AB - In spite of the vast arsenal of therapeutic agents, therapy of herpes virus infection (HVI) is very difficult, particularly in pregnant women, newborns and children in the first years of life, as well as in patients with immune deficiency. In this regard, possibility of using immunoglobulins for the treatment of HVI is currently attracting the attention of doctors. The aim of this work was to develop a suppository form of the drug containing donor immunoglobulins with high levels of neutralizing antibodies to herpes simplex virus types 1 and 2 for the treatment of chronic forms of herpetic disease. The study included the following steps: 1) selection of gamma-globulins with high antibody titer for HSV-1 and HSV-2 ELISA test; 2) determination of the level of neutralizing antibodies in the selected series of gamma-globulins in tests in tissue cultures and animals; 3) lyophilization of immunoglobulins; 4) development of the suppository form of the preparation containing gamma-globulin donors with high levels of neutralizing antibodies to HSV-1 and HSV-2; 5) study of the safety of the activity of neutralizing antibodies to HSV-1 and HSV-2 in the suppository form of the drug with hyaluronic acid used as immunomodulator. As the result of this work, immunoglobulin preparation in the suppository form was developed. The developed preparation meets the requirements for safety and efficacy. It is not toxic or pyrogenic. The problems of clinical use of this drug as a method of HVI therapy are discussed. PMID- 29323846 TI - A comparative analysis of virucidal efficiency of biocide agents. AB - The main groups of biocide agents used for inactivation of bacteria and viruses were studied for their virucidal activity against enveloped (HIV, viral hepatitis C, influenza virus A) and non-enveloped viruses (poliovirus, adenovirus). Their efficiency was analyzed. Quarterly ammonium compounds (QAC) themselves are not able to properly inactivate non-enveloped viruses. However, they can be successfully applied in combination with other biocides (guanidines, aldehydes). Effective composition of QAC with amines and guanidines provided inactivation of viruses (4.0 lgTCID50) in concentrations of 0.166-0.280% for non-enveloped viruses and 0.080-00.185% for enveloped viruses. The combination of QAC with aldehydes is especially effective (0.04-0.64% for non-enveloped viruses). The virucidal efficiency does not directly depend on the QAC concentration in the chemical disinfectants. PMID- 29323851 TI - Buffalopox. AB - Buffalopox is a contagious viral disease affecting milch buffaloes (Bubalus Bubalis) and, rarely, cows. The disease has zoonotic implications, as outbreaks are frequently associated with human infections, particularly in the milkers. Buffalopox is associated with high morbidity (80%). The clinical symptoms of the disease are characterized by wartline lesions on the udder, teats, inguinal region, base of the ears, and over the parotid. In the severe form, generalized rash is observed. Although the disease does not lead to high mortality, it has an adverse effect on the productivity and working capacity of the animals resulting in large economic losses. The outbreaks of buffalopox occurred frequently in India, Pakistan, Bangladesh, Nepal, Iran, Egypt, and Indonesia, where buffaloes are reared as milch animals. The buffalopox is closely related with other Orthopoxviruses. In particular, it is close to the vaccinia virus. There is a view that the buffalopox virus might be derived from the vaccinia virus. It is possible that it became pathogenic to humans and animals through adaptive evolution of the genome by obtaining the virulence genes. PCR is performed for the C18L gene for the purpose of specific detection and differentiation of the buffalopox virus from other orthopoxviruses. The C18L gene encodes the ankyrin repeat protein, which determines the virus host range. The open reading frame of this gene is only 150-nucleotide long as against 453 nucleotide in the vaccinia virus, 756 - in the camelpox virus, and 759 - in the cowpox virus. It can be concluded that a systematic study based on the epidemiology of the virus, existence of reservoirs, biological transmission, and the molecular organization of the buffalopox virus from buffalo, cow, and humans may pave the way to a better understanding of the circulating virus and contribute to the control of the disease using the suitable diagnostic and prophylactic measures. PMID- 29323852 TI - Diagnostic value of the Epstein-Barr virus serological markers in patients with nasopharyngeal carcinoma in cases of undetectable primary tumor location. AB - The goal of this work was to describe a method for diagnosis of the non keratinizing nasopharyngeal carcinoma (nNPC) in cases of the undetectable primary tumor location. The method is based on evaluation of IgG and IgA antibody levels to the capsid (VCA) and early antigens (EA) of the Epstein-Barr virus (EBV). The diagnosis of nNPC is established by a so-called decision rule. The latter was created by mathematical processing of the method of multifactor analysis of the results of anti-EBV antibody testing of 72 patients with clinically and morphologically confirmed nNPC and 72 patients with other head and neck benign tumors (OHNT) not associated with EBV, which were tested as a control group. The diagnostic value of the decision rule which was tested in the group of 77 patients with confirmed nNPC and 231 patients of a control group was high. The numbers of false negative and false positive cases were equal to 5.2% (4/77) and 6.5% (17/231), respectively. Among 32 patients with undetectable primary tumors the decision rule was able to identify 11 cases of nNPC. This diagnosis later was confirmed by morphological and instrumental methods of study. Only in two cases, false negative result was obtained (2/32; 6.3%) indicating that the serological diagnostics of nNPC with the decision rule is highly specific but not exact. Thus, the data obtained allowed us to conclude that the serological testing of EBV specific antibody evaluated by the decision rule can be recommended as an important test supplementing the standard methods of pdNPC diagnostics including cases with undetected primary tumor location. PMID- 29323853 TI - IL17A gene polymorphisms: relationship to predisposition for chronic viral hepatitis and progression to liver cirrhosis in kazakh population. AB - Introduction: This work is the first genetic association study of a potential relationship of single nucleotide polymorphisms rs8193036 and rs2275913 located in the IL17A promoter on chromosome 6p12 to chronic viral hepatitis and its progression in Kazakh population. Purpose: Evaluation of the effect of IL17A polymorphism on predisposition for chronic hepatitis B and C and its progression to liver cirrhosis. Materials and Methods: A total of 862 individuals were enrolled in the retrospective case-control association study. Among the participants, 100 patients had chronic hepatitis B and/or C and liver cirrhosis, and 341 patients had chronic viral hepatitis only. Four hundred twenty-one (421) healthy HBV- and HCV-negative donors without liver diseases were recruited as population control. single nucleotide polymorphisms rs8193036[T/C] and rs2275913[G/A] were genotyped by TaqMan assays using genomic DNA extracted from peripheral blood cells. Results. Minor allele frequencies of rs8193036[C] and rs2275913[A] in the groups of patients were very similar to those observed in the control population, 0.4 and 0.3, respectively. Multivariate logistic regression analysis revealed odds ratios close to 1.0 and confidence intervals overlapping with the value of 1.0 and statistical significance p > 0.4 for any groups under comparison in the multiplicative model of inheritance. conclusion: No significant association between two single nucleotide polymorphisms, rs8193036 and rs2275913 in the IL17A promoter, and susceptibility to chronic viral hepatitis C and/or B and disease progression to liver cirrhosis in Kazakh population were found. PMID- 29323855 TI - Analysis of the env gene variability of the IDU-A HIV-1 variant in the outbreak of the HIV infection epidemic in Perm region of Russia (1996-2011). AB - In the present work, a total of 132 HIV-1 env gene C2-V3-C3 sequences belonging to the IDU-A genetic variant were analyzed. The variants were obtained from the viruses circulating among IDUs and heterosexuals in the Perm region at different periods. It was shown that the rate of the divergence of the IDU-A HIV-1 viruses from a common ancestor increased 4.3 times (p < 0.001) in 2011 as compared with the onset of the epidemics. The rate of the HIV-1 evolution was different in the two risk groups of the infection. The mean genetic distance of HIV-1 variants circulating among heterosexuals was 1.3 times longer (p = 0.008) than that among IDUs. The accumulation rate of the nucleotide (including nonsynonymous) substitutions in the C2-V3-C3 HIV-1 env gene region among individuals infected by heterosexual contacts was 1.7 times higher than that among IDUs. The differences in the positions of the codons subjected to positive selection were demonstrated depending on the infection risk group tested. PMID- 29323854 TI - Immunofluorescence diagnosis of the herpesvirus stillborn infection. AB - Congenital herpes infection belongs to the category of actual problems of Perinatal Medicine. Pathological diagnosis of this disease is not effective in the routine method of autopsy studies without virological research. Objective. Determination of the value of the fluorescent antibody technique in the diagnosis of congenital herpes infection of the stillborn is a promising approach to medical diagnosis. subjects and methods. In 96 cases of stillbirth immunofluorescent identification of herpes simplex virus types 1 and 2 and cytomegalovirus in the placenta and internal organs (brain, heart, lungs, and liver) was implemented. The findings were compared with the results of a complete histological examination of the heart, including its rhythmogenic centers. Results. The herpes viruses were found in 51 observations (53.1%). Among them, HSV-1 were found in 16 observations (16.7%), HSV-2, in 19 (19.7%), CMV, in 16 (16.7%). In 34 stillbirths (35.8%) the pathological signs of herpetic atrial myocarditis were observed, which were regarded as the cause of death. Conclusion. The use of the fluorescent antibody technique in the autopsy practice is an effective way of diagnosis of intrauterine infection caused by the herpes simplex virus and cytomegalovirus. PMID- 29323856 TI - Tick-borne encephalitis virus isolates from natural foci of the Irkutsk region: clarification of the genotype landscape. AB - The Irkutsk region is the unique territory where all known subtypes of tick-borne encephalitis virus (TBEV) circulate. In the last years, the phenomenon of changes in TBEV subtypes (substitution of the Far-Eastern subtype by the Siberian one) was noted in some regions of the Russian Federation. The results of individual investigation of 11522 Ixodes persulcatus ticks and brain specimens from 81 small mammals collected in natural foci of the Irkutsk region during 2006-2014 are presented in the article. More than 60 TBEV strains have been isolated and studied by virological methods; E gene fragments (1193 b.p.) of 68 isolates have been typed. The majority of the strains (irrespective of subtype) were of high virulence for laboratory mice (LM) in case of both intracerebral and subcutaneous inoculation of virus. All isolates from warm-blooded small mammals and humans were of high virulence for LM, but placed in the same clusters of the phylogenetic tree with ticks collected in the same area. Tick-borne strains of different virulence also did not form separate clusters on the tree. Phylogenetic analysis showed that modern TBEV genotypic landscape of the studied territory is changing toward absolute predominance of the Siberian subtype (94.1%). This subtype is represented by two groups with prototype strains "Zausaev" and "Vasilchenko". The "Vasilchenko" group of strains is spread on the whole territory under study; the strains of "Zausaev" group were isolated previously in the Irkutsk suburbs. The European subtype of TBEV circulates in natural foci of Pribaikalie permanently (at least 5% of the random sampling); the strains are of high virulence for LM. The Far-Eastern TBEV subtype was not found within the group of isolates collected in 20062014. The phylogenetic relationship of the strains under study had a higher correlation with the place of isolation than with the year or source. PMID- 29323857 TI - Development and evaluation of the RT-PCR kit for the rabies virus diagnosis. AB - To improve the diagnosis, surveillance, and control for the rabies virus, a kit for hybridization-triggered fluorescence detection of rabies virus DNA by the RT PCR technique was developed and evaluated. The analytical sensitivity of the kit was 4*10 GE per ml. High specificity of the kit was shown using representative sampling of viral, bacterial, and human nucleic acids. PMID- 29323858 TI - Calculated decisions: Absolute neutrophil count PMID- 29323859 TI - Calculated decisions: MASCC Risk Index for febrile neutropenia PMID- 29323860 TI - Editorial - Seeking a new 'normal' in the Canadian food environment. PMID- 29323861 TI - Commentary - What about the mouth? Connecting oral health and food environments. PMID- 29323863 TI - At-a-glance - "A tough sell": findings from a qualitative analysis on the provision of healthy foods in recreation and sports settings. AB - Recreation and sport settings (RSS) typically promote health in the form of physical activity, but the healthfulness of their food environment is often neglected. We explored stakeholder perspectives on barriers to healthy food provision in RSS through telephone interviews with ten representatives from RSS across Nova Scotia. Three key barriers were identified: 1) cultural norms associated with food in RSS and the broader environment, 2) the persisting notion of personal choice and responsibility, and 3) financial implications of healthy food provision. These barriers challenge healthy food provision in RSS and require multi-faceted strategies to overcome social norms that undermine health behaviours. PMID- 29323862 TI - Healthy food procurement and nutrition standards in public facilities: evidence synthesis and consensus policy recommendations. AB - INTRODUCTION: Unhealthy foods are widely available in public settings across Canada, contributing to diet-related chronic diseases, such as obesity. This is a concern given that public facilities often provide a significant amount of food for consumption by vulnerable groups, including children and seniors. Healthy food procurement policies, which support procuring, distributing, selling, and/or serving healthier foods, have recently emerged as a promising strategy to counter this public health issue by increasing access to healthier foods. Although numerous Canadian health and scientific organizations have recommended such policies, they have not yet been broadly implemented in Canada. METHODS: To inform further policy action on healthy food procurement in a Canadian context, we: (1) conducted an evidence synthesis to assess the impact of healthy food procurement policies on health outcomes and sales, intake, and availability of healthier food, and (2) hosted a consensus conference in September 2014. The consensus conference invited experts with public health/nutrition policy research expertise, as well as health services and food services practitioner experience, to review evidence, share experiences, and develop a consensus statement/recommendations on healthy food procurement in Canada. RESULTS: Findings from the evidence synthesis and consensus recommendations for healthy food procurement in Canada are described. Specifically, we outline recommendations for governments, publicly funded institutions, decision-makers and professionals, citizens, and researchers. CONCLUSION: Implementation of healthy food procurement policies can increase Canadians' access to healthier foods as part of a broader vision for food policy in Canada. PMID- 29323864 TI - Status report - FoodReach Toronto: lowering food costs for social agencies and community groups. AB - Toronto has the largest absolute number of food insecure households for any metropolitan census area in Canada: of its 2.1 million households, roughly 252 000 households (or 12%) experience some level of food insecurity. Community organizations (including social agencies, school programs, and child care centres) serve millions of meals per year to the city's most vulnerable citizens, but often face challenges accessing fresh produce at affordable prices. Therefore in 2015, Toronto Public Health, in collaboration with public- and private-sector partners, launched the FoodReach program to improve the efficiency of food procurement among community organizations by consolidating their purchasing power. Since being launched, FoodReach has been used by more than 50 community organizations to provide many of Toronto's most marginalised groups with regular access to healthy produce. PMID- 29323865 TI - Building capacity through urban agriculture: report on the askiy project. AB - INTRODUCTION: Many North American cities have a built environment that provides access to energy-dense food and little opportunity for active living. Urban agriculture contributes to a positive environment involving food plant cultivation that includes processing, storing, distributing and composting. It is a means to increase local food production and thereby improve community health. The purpose of this study was to understand how participating in urban agriculture can help to empower young adults and build capacity for growing food in the city. METHODS: This was a qualitative study of seven participants (five Indigenous and two non-Indigenous) between the ages of 19 and 29 years, engaged as interns in an urban agriculture project known as "askiy" in Saskatoon, Saskatchewan, Canada in 2015. We used a case-study design and qualitative analysis to describe the participants' experience based on the sustainable livelihoods framework. RESULTS: A collaborative approach had a great effect on the interns' experiences, notably the connections formed as they planned, planted, tended, harvested and sold the produce. Some of the interns changed their grocery shopping habits and began purchasing more vegetables and questioning where and how the vegetables were produced. All interns were eager to continue gardening next season, and some were planning to take their knowledge and skills back to their home reserves. CONCLUSION: Urban agriculture programs build capacity by providing skills beyond growing food. Such programs can increase local food production and improve food literacy skills, social relationships, physical activity and pride in community settings. PMID- 29323866 TI - Correction: Soy Intake Is Associated with Increased 2-Hydroxylation and Decreased 16-Hydroxylation of Estrogens in Asian-American Women PMID- 29323867 TI - Correction: Development and Cancer: At the Crossroads of Nodal and Notch Signaling PMID- 29323868 TI - Sequential Multicomponent Strategy for the Diastereoselective Synthesis of Densely Functionalized Spirooxindole-Fused Thiazolidines. AB - We developed two Ugi-type three-component reactions of spirooxindole-fused 3 thiazolines, isocyanides, and either carboxylic acids or trimethylsilyl azide, to give highly functionalized spirooxindole-fused thiazolidines. Two diverse libraries were generated using practical and robust procedures affording the products in typically good yields. The obtained thiazolidines proved to be suitable substrates for further transformations. Notably, both the Ugi-Joullie and the azido-Ugi reactions resulted highly diastereoselective, affording predominantly the trans-configured products, as confirmed by X-ray crystallographic analysis. PMID- 29323869 TI - Dual-Functional Superhydrophobic Textiles with Asymmetric Roll-Down/Pinned States for Water Droplet Transportation and Oil-Water Separation. AB - Superhydrophobic surfaces with tunable adhesion from lotus-leaf to rose-petal states have generated much attention for their potential applications in self cleaning, anti-icing, oil-water separation, microdroplet transportation, and microfluidic devices. Herein we report a facile magnetic-field-manipulation strategy to fabricate dual-functional superhydrophobic textiles with asymmetric roll-down/pinned states on the two surfaces of the textile simultaneously. Upon exposure to a static magnetic field, fluoroalkylsilane-modified iron oxide (F Fe3O4) nanoparticles in polydimethylsiloxane (PDMS) moved along the magnetic field to construct discrepant hierarchical structures and roughnesses on the two sides of the textile. The positive surface (closer to the magnet, or P-surface) showed a water contact angle up to 165 degrees , and the opposite surface (or O surface) had a water contact angle of 152.5 degrees . The P-surface where water droplets easily slid off with a sliding angle of 7.5 degrees appeared in the "roll-down" state as Cassie mode, while the O-surface was in the "pinned" state as Wenzel mode, where water droplets firmly adhered even at vertical (90 degrees ) and inverted (180 degrees ) angles. The surface morphology and wetting mode were adjustable by varying the ratios of F-Fe3O4 nanoparticles and PDMS. By taking advantage of the asymmetric adhesion behaviors, the as-fabricated superhydrophobic textile was successfully applied in no-loss microdroplet transportation and oil-water separation. Our method is simple and cost-effective. The fabricated textile has the characteristics of superhydrophobicity, magnetic responsiveness, excellent chemical stability, adjustable surface morphology, and controllable adhesion. Our findings conceivably stand out as a new tool to fabricate functional superhydrophobic materials with asymmetric surface properties for various potential applications. PMID- 29323871 TI - Microfluidic Device for Aptamer-Based Cancer Cell Capture and Genetic Mutation Detection. AB - We present a microfluidic device for specifically capturing cancer cells and isolating their genomic DNA (gDNA) for specific amplification and sequence analysis. To capture cancer cells within the device, nucleic acid aptamers that specifically bind to cancer cells were immobilized within a channel containing micropillars designed to increase capture efficiency. The captured cells were lysed in situ, and their gDNA was isolated by physical entanglement within a second smaller-dimensioned micropillar array. This type of isolation allows the gDNA to be retained and purified within the channel and enables amplification and analysis to be performed on the gDNA without the loss of the original template. We developed a technique for selectively amplifying genes from whole gDNA using multiple displacement amplification. The amplified gene samples were sequenced, and the resulting sequence information was compared against the known wild-type gene to identify any mutations. We have tested cervical and ovarian cancer cells for mutations in the TP53 gene using this technology. This approach offers a way to monitor multiple genetic mutations in the same small population of cells, which is beneficial given the wide diversity in cancer cells, and therefore it requires very few cells to be extracted from a patient sample. PMID- 29323870 TI - Cell Membrane Bioconjugation and Membrane-Derived Nanomaterials for Immunotherapy. AB - Cell membrane engineering, including live cell membrane bioconjugation and cell membrane-derived nanomaterials is a highly promising strategy to modulate immune responses for treating diseases. Many cell membrane engineering methods have potential for translation for human clinical use in the near future. In this Topical Review, we summarize the cell membrane conjugation strategies that have been investigated for cancer immunotherapy, the prevention of immune rejection to donor cells and tissues, and the induction of antigen-specific tolerance in autoimmune diseases. Additionally, cell membrane-derived or membrane-coated nanomaterials are an emerging class of nanomaterials that is attracting significant attention in the field of nanomedicine. Some of these nanomaterials have been employed to elicit immune responses against cancer, toxins, and bacteria, although their application in establishing immune tolerance has not been explored. In addition to discussing potential problems, we provide our perspectives for promising future directions. PMID- 29323872 TI - Glycodendrimer Nanocarriers for Direct Delivery of Fludarabine Triphosphate to Leukemic Cells: Improved Pharmacokinetics and Pharmacodynamics of Fludarabine. AB - Fludarabine, a nucleoside analogue antimetabolite, has complicated pharmacokinetics requiring facilitated transmembrane transport and intracellular conversion to triphosphate nucleotide form (Ara-FATP), causing it to be susceptible to emergence of drug resistance. We are testing a promising strategy to improve its clinical efficacy by direct delivery of Ara-FATP utilizing a biocompatible glycodendrimer nanocarrier system. Here, we present results of a proof-of-concept experiment in several in vitro-cultured leukemic cell lines (CCRF, THP-1, U937) using noncovalent complexes of maltose-modified poly(propyleneimine) dendrimer and fludarabine triphosphate. We show that Ara FATP has limited cytotoxic activity toward investigated cells relative to free nucleoside (Ara-FA), but complexation with the glycodendrimer (which does not otherwise influence cellular metabolism) drastically increases its toxicity. Moreover, we show that transport via hENT1 is a limiting step in Ara-FA toxicity, while complexation with dendrimer allows Ara-FATP to kill cells even in the presence of a hENT1 inhibitor. Thus, the use of glycodendrimers for drug delivery would allow us to circumvent naturally occurring drug resistance due to decreased transporter activity. Finally, we demonstrate that complex formation does not change the advantageous multifactorial intracellular pharmacodynamics of Ara FATP, preserving its high capability to inhibit DNA and RNA synthesis and induce apoptosis via the intrinsic pathway. In comparison to other nucleoside analogue drugs, fludarabine is hereby demonstrated to be an optimal candidate for maltose glycodendrimer-mediated drug delivery in antileukemic therapy. PMID- 29323873 TI - Silicon Rhodamine-Based Near-Infrared Fluorescent Probe for gamma Glutamyltransferase. AB - We designed and synthesized an activatable near-infrared (NIR) fluorescent probe for gamma-glutamyltransferase, based on an asymmetric silicon rhodamine scaffold with an optimized equilibrium of intramolecular spirocyclization. The synthesized probe exhibits dramatic NIR fluorescence activation and, in combination with previously reported probes, enables discrimination of tumors with different enzymatic profiles. PMID- 29323874 TI - Strategy of Solution-Processed All-Inorganic Heterostructure for Humidity/Temperature-Stable Perovskite Quantum Dot Light-Emitting Diodes. AB - Recently, a pressing requirement of solid-state lighting sources with high performance and low cost has motivated increasing research in metal halide perovskites. However, the relatively low emission efficiency and poor operation stability of perovskite light-emitting diodes (LEDs) are still critical drawbacks. In this study, a strategy of solution-processed all-inorganic heterostructure was proposed to overcome the emission efficiency and operation stability issues facing the challenges of perovskite LEDs. Solution-processed n ZnO nanoparticles and p-NiO are used as the carrier injectors to fabricate all inorganic heterostructured CsPbBr3 quantum dot LEDs, and a high-efficiency green emission is achieved with maximum luminance of 6093.2 cd/m2, external quantum efficiency of 3.79%, and current efficiency of 7.96 cd/A. More importantly, the studied perovskite LEDs possess a good operation stability after a long test time in air ambient. Typically, the devices can endure a high humidity (75%, 12 h) and a high working temperature (393 K, three heating/cooling cycles) even without encapsulation, and the operation stability is better than any previous reports. It is anticipated that this work will provide an effective strategy for the fabrication of high-performance perovskite LEDs with good stability under ambient and harsh conditions, making practical applications of such LEDs a real possibility. PMID- 29323875 TI - Theranostics of Triple-Negative Breast Cancer Based on Conjugated Polymer Nanoparticles. AB - Triple-negative breast cancer (TNBC) does not respond to many targeted drugs due to the lack of three receptors (i.e., estrogen receptor, progesterone receptor, and human epidermal growth factor receptor-2), which makes it difficult for TNBC detection and treatment. As compared to traditional breast cancer treatments such as surgery and chemotherapy, photodynamic therapy (PDT) has emerged as a promising approach for treating TNBC due to its precise controllability, high spatiotemporal accuracy, and minimal invasive nature. However, traditional photosensitizers used in PDT are associated with limitations of aggregation caused quenching (ACQ), and the ACQ induced a significant decrease in reactive oxygen species (ROS) generation. To address these, we synthesized a cyclic arginine-glycine-aspartic acid (cRGD) peptide-decorated conjugated polymer (CP) nanoparticles with poly[2-methoxy-5-(2-ethyl-hexyloxy)-1,4-phenylenevinylene] (MEH-PPV) as the photosensitizer for the theranostics of TNBC. The synthesized CP nanoparticles show bright fluorescence with high stability and could effectively produce ROS under light irradiation. Cell viability studies showed that the CP nanoparticles have negligible dark cytotoxicity and could efficiently kill the alphavbeta3 integrin-overexpressed MDA-MB-231 cells (one subtype of TNBC cells) in a selective way. With the use of cRGD-modified MEH-PPV nanoparticles as the theranostic agent, it permits targeted imaging and PDT of TNBC both in the in vitro 3D tumor model and in living mice. The application of CP nanoparticles in the successful theranostics of TNBC could pave the way for future development of CP-based photosensitizers for clinical applications. PMID- 29323876 TI - Revolutionizing Our Understanding of Amyloidogenic Proteins by Cryo-Electron Microscopy. PMID- 29323877 TI - Curcumin-Conjugated Gold Clusters for Bioimaging and Anticancer Applications. AB - Curcumin-conjugated gold clusters (CUR-AuNCs) were synthesized using a "green" procedure and utilized as an anticancer and a bioimaging agent. Curcumin is a well-known anticancer agent, which forms a cluster when reacting with a gold precursor under mild alkali condition. A fluorescence spectroscopy analysis showed that the CUR-AuNCs emitted red fluorescence (650 nm) upon visible light (550) irradiation. Fourier transform infrared spectroscopy analysis confirmed the stretching and bending nature between the gold atoms and curcumin. Meanwhile, transmission electron microscopy analysis showed a cluster of approximately 1-3 nm with a uniform size. Time-resolved fluorescence analysis demonstrated that the red fluorescence was highly stable. Moreover, laser confocal imaging and atomic force microscopy analysis illustrated that a cluster was well distributed in the cell. This cluster exhibited less toxicity in the mortal cell line (COS-7) and high toxicity in the cervical cancer cell line (HeLa). The results demonstrated the conjugation of curcumin into the fluorescent gold cluster as a potential material for anticancer therapy and bioimaging applications. PMID- 29323878 TI - Electrical Matching at Metal/Molecule Contacts for Efficient Heterogeneous Charge Transfer. AB - In a metal/molecule hybrid system, unavoidable electrical mismatch exists between metal continuum states and frontier molecular orbitals. This causes energy loss in the electron conduction across the metal/molecule interface. For efficient use of energy in a metal/molecule hybrid system, it is necessary to control interfacial electronic structures. Here we demonstrate that electrical matching between a gold substrate and pi-conjugated molecular wires can be obtained by using monatomic foreign metal interlayers, which can change the degree of d-pi* back-donation at metal/anchor contacts. This interfacial control leads to energy level alignment between the Fermi level of the metal electrode and conduction molecular orbitals, resulting in resonant electron conduction in the metal/molecule hybrid system. When this method is applied to molecule-modified electrocatalysts, the heterogeneous electrochemical reaction rate is considerably improved with significant suppression of energy loss at the internal electron conduction. PMID- 29323880 TI - Photoactivated in Vitro Anticancer Activity of Rhenium(I) Tricarbonyl Complexes Bearing Water-Soluble Phosphines. AB - Fifteen water-soluble rhenium compounds of the general formula [Re(CO)3(NN)(PR3)]+, where NN is a diimine ligand and PR3 is 1,3,5-triaza-7 phosphaadamantane (PTA), tris(hydroxymethyl)phosphine (THP), or 1,4-diacetyl 1,3,7-triaza-5-phosphabicylco[3.3.1]nonane (DAPTA), were synthesized and characterized by multinuclear NMR spectroscopy, IR spectroscopy, and X-ray crystallography. The complexes bearing the THP and DAPTA ligands exhibit triplet based luminescence in air-equilibrated aqueous solutions with quantum yields ranging from 3.4 to 11.5%. Furthermore, the THP and DAPTA complexes undergo photosubstitution of a CO ligand upon irradiation with 365 nm light with quantum yields ranging from 1.1 to 5.5% and sensitize the formation of 1O2 with quantum yields as high as 70%. In contrast, all of the complexes bearing the PTA ligand are nonemissive and do not undergo photosubstitution upon irradiation with 365 nm light. These compounds were evaluated as photoactivated anticancer agents in human cervical (HeLa), ovarian (A2780), and cisplatin-resistant ovarian (A2780CP70) cancer cell lines. All of the complexes bearing THP and DAPTA exhibited a cytotoxic response upon irradiation with minimal toxicity in the absence of light. Notably, the complex with DAPTA and 1,10-phenanthroline gave rise to an IC50 value of 6 MUM in HeLa cells upon irradiation, rendering it the most phototoxic compound in this library. The nature of the photoinduced cytotoxicity of this compound was explored in further detail. These data indicate that the phototoxic response may result from the release of both CO and the rhenium-containing photoproduct, as well as the production of 1O2. PMID- 29323881 TI - Markov State Models: From an Art to a Science. AB - Markov state models (MSMs) are a powerful framework for analyzing dynamical systems, such as molecular dynamics (MD) simulations, that have gained widespread use over the past several decades. This perspective offers an overview of the MSM field to date, presented for a general audience as a timeline of key developments in the field. We sequentially address early studies that motivated the method, canonical papers that established the use of MSMs for MD analysis, and subsequent advances in software and analysis protocols. The derivation of a variational principle for MSMs in 2013 signified a turning point from expertise-driving MSM building to a systematic, objective protocol. The variational approach, combined with best practices for model selection and open-source software, enabled a wide range of MSM analysis for applications such as protein folding and allostery, ligand binding, and protein-protein association. To conclude, the current frontiers of methods development are highlighted, as well as exciting applications in experimental design and drug discovery. PMID- 29323879 TI - Malaria Derived Glycosylphosphatidylinositol Anchor Enhances Anti-Pfs25 Functional Antibodies That Block Malaria Transmission. AB - Malaria, one of the most common vector borne human diseases, is a major world health issue. In 2015 alone, more than 200 million people were infected with malaria, out of which, 429 000 died. Even though artemisinin-based combination therapies (ACT) are highly effective at treating malaria infections, novel efforts toward development of vaccines to prevent transmission are still needed. Pfs25, a postfertilization stage parasite surface antigen, is a leading transmission-blocking vaccine (TBV) candidate. It is postulated that Pfs25 anchors to the cell membrane using a glycosylphosphatidylinositol (GPI) linker, which itself possesses pro-inflammatory properties. In this study, Escherichia coli derived extract (XtractCF+TM) was used in cell free protein synthesis [CFPS] to successfully express >200 mg/L of recombinant Pfs25 with a C-terminal non natural amino acid (nnAA), namely, p-azidomethyl phenylalanine (pAMF), which possesses a reactive azide group. Thereafter, a unique conjugate vaccine (CV), namely, Pfs25-GPI was generated with dibenzocyclooctyne (DBCO) derivatized glycan core of malaria GPI using a simple but highly efficient copper free click chemistry reaction. In mice immunized with Pfs25 or Pfs25-GPI, the Pfs25-GPI group showed significantly higher titers compared to the Pfs25 group. Moreover, only purified IgGs from Pfs25-GPI group were able to significantly block transmission of parasites to mosquitoes, as judged by a standard membrane feeding assay [SMFA]. To our knowledge, this is the first report of the generation of a CV using Pfs25 and malaria specific GPI where the GPI is shown to enhance the ability of Pfs25 to elicit transmission blocking antibodies. PMID- 29323882 TI - Quantitative Shotgun Proteomics Associates Molecular-Level Cadmium Toxicity Responses with Compromised Growth and Reproduction in a Marine Copepod under Multigenerational Exposure. AB - In this study, the copepod Tigriopus japonicus was exposed to different cadmium (Cd) treatments (0, 2.5, 5, 10, and 50 MUg/L in seawater) for five generations (F0-F4), followed by a two-generation (F5-F6) recovery period in clean seawater. Six life-history traits (survival, developmental time of nauplius phase, developmental time to maturation, number of clutches, number of nauplii/clutch, and fecundity) were examined for each generation. Metal accumulation was also analyzed for generations F0-F6. Additionally, proteome profiling was performed for the control and 50 MUg/L Cd-treated F4 copepods. In F0-F4 copepods, Cd accumulated in a concentration-dependent manner, prolonging the development of the nauplius phase and maturation and reducing the number of nauplii/clutch and fecundity. However, during F5-F6, Cd accumulation decreased rapidly, and significant but subtle effects on growth and reproduction were observed only for the highest metal treatment at F5. Proteomic analysis revealed that Cd treatment had several toxic effects including depressed nutrient absorption, dysfunction in cellular redox homeostasis and metabolism, and oxidative stress, resulting in growth retardation and reproduction limitation in this copepod species. Taken together, our results demonstrate the relationship between molecular toxicity responses and population-level adverse outcomes in T. japonicus under multigenerational Cd exposure. PMID- 29323883 TI - A Stable Blue Photosensitizer for Color Palette of Dye-Sensitized Solar Cells Reaching 12.6% Efficiency. AB - We report a blue dye, coded as R6, which features a polycyclic aromatic hydrocarbon, 9,19-dihydrobenzo[1',10']phenanthro[3',4':4,5]thieno[3,2 b]benzo[1,10]phenanthro[3,4-d]thiophene, coupled with a diarylamine electron donor and 4-(7-ethynylbenzo[c][1,2,5]thiadiazol-4-yl)benzoic acid acceptor. Dye R6 displays a brilliant sapphire color in a sensitized TiO2 mesoporous film with a Co(II/III) tris(bipyridyl)-based redox electrolyte. The R6 based dye-sensitized solar cell achieves an impressive power conversion efficiency of 12.6% under standard air mass 1.5 global, 100 mW cm-2, and shows a remarkable photostability. PMID- 29323884 TI - Drastic Redox Shift and Electronic Structural Changes of a Manganese(III)-Salen Oxidation Catalyst upon Reaction with Hydroxide and Cyanide Ion. AB - Flexible redox properties of a metal complex are important for redox catalysis. The present study shows that the reaction of a manganese(III) salen complex, which is a well-known oxidation catalyst, with hydroxide ion gives a transient manganese(III) species with drastically lowered redox potential, where the redox difference is -1.21 V. The reaction with cyanide ion gives a stable manganese(III) species with almost the same spectroscopic and redox properties, which was characterized as an anionic [MnIII(salen)(CN)2]- of low-spin S = 1 state, in contrast to the starting MnIII(salen)(OTf) having usual high-spin S = 2 manganese(III). The present study has thus clarified that the drastic redox shift comes from an anionic six-coordinate [MnIII(salen)(X)2]- species where X is either OH- or CN-. Resonance Raman measurements show that the stretching band of the imino group shifts from 1620 to 1597 cm-1 upon conversion from MnIII(salen)(OTf) to [MnIII(salen)(CN)2]-, indicative of lowered C?N double bond character for [MnIII(salen)(CN)2]-. The observed deformation of a salen ligand is a clear indication of an increased electron population on the imino pi*-orbital upon formation of low-spin manganese(III). It was proposed that the electronic structure of [MnIII(salen)(CN)2]- may contain only limited contribution from valence tautomeric [MnIV(salen- *)(CN)2]-, in which the imino group of a salen ligand is reduced by one-electron via intramolecular electron transfer from low spin manganese(III). The present study has clarified an unexpected new finding that a salen ligand works as a reservoir for negative charge to stabilize low spin manganese(III). PMID- 29323885 TI - Unraveling Hidden Mg-Mn-H Phase Relations at High Pressures and Temperatures by in Situ Synchrotron Diffraction. AB - The Mg-Mn-H system was investigated by in situ high pressure studies of reaction mixtures MgH2-Mn-H2. The formation conditions of two complex hydrides with composition Mg3MnH7 were established. Previously known hexagonal Mg3MnH7 (h Mg3MnH7) formed at pressures 1.5-2 GPa and temperatures between 480 and 500 degrees C, whereas an orthorhombic form (o-Mg3MnH7) was obtained at pressures above 5 GPa and temperatures above 600 degrees C. The crystal structures of the polymorphs feature octahedral [Mn(I)H6]5- complexes and interstitial H-. Interstitial H- is located in trigonal bipyramidal and square pyramidal interstices formed by Mg2+ ions in h- and o-Mg3MnH7, respectively. The hexagonal form can be retained at ambient pressure, whereas the orthorhombic form upon decompression undergoes a distortion to monoclinic Mg3MnH7 (m-Mg3MnH7). The structure elucidation of o- and m-Mg3MnH7 was aided by first-principles density functional theory (DFT) calculations. Calculated enthalpy versus pressure relations predict m- and o-Mg3MnH7 to be more stable than h-Mg3MnH7 above 4.3 GPa. Phonon calculations revealed o-Mg3MnH7 to be dynamically unstable at pressures below 5 GPa, which explains its phase transition to m-Mg3MnH7 on decompression. The electronic structure of the quenchable polymorphs h- and m Mg3MnH7 is very similar. The stable 18-electron complex [MnH6]5- is mirrored in the occupied states, and calculated band gaps are around 1.5 eV. The study underlines the significance of in situ investigations for mapping reaction conditions and understanding phase relations for hydrogen-rich complex transition metal hydrides. PMID- 29323886 TI - Bisphenol F Disrupts Thyroid Hormone Signaling and Postembryonic Development in Xenopus laevis. AB - The safety of bisphenol A (BPA) alternatives has attracted much attention due to their wide use. In this study, we investigated the effects of bisphenol F (BPF), an alternative to BPA, on thyroid hormone (TH) signaling and postembryonic development in vertebrates using T3-induced and spontaneous Xenopus metamorphosis as models. We found that in the T3-induced metamorphosis assay, higher concentrations of BPF (100-10000 nM) antagonized T3-induced TH-response gene transcription and morphological changes including intestinal remodeling in a concentration-dependent manner, whereas 10 nM BPF exerted stimulatory effects on T3-induced integral metamorphosis when inhibited T3-induced TH-response gene transcription, demonstrating TH signaling disrupting effects of BPF. In the spontaneous metamorphosis assay, correspondingly, BPF inhibited development at metamorphic climax (with high endogenous TH levels), but promoted pre- and pro metamorphic development (with low endogenous TH levels), displaying a developmental stage-dependent manner. Importantly, we observed agonistic actions of BPF on Notch signaling in intestines, showing that BPF disrupts vertebrate development possibly via multi pathways besides TH signaling. Thus, we infer the biphasic concentration-response relationship between BPF exposure and T3-induced metamorphosis could result from the interactions of TH signaling with other signaling pathways such as Notch signaling. Our study highlights the adverse influences of BPF on vertebrate development. PMID- 29323887 TI - Benchmarking Excited-State Calculations Using Exciton Properties. AB - Benchmarking is an every-day task in computational chemistry, yet making meaningful comparisons between different methods is nontrivial. Benchmark studies often focus on the most obvious quantities such as energy differences. But to gain insight, it is desirable to explain the discrepancies between theoretical methods in terms of underlying wave functions and, consequently, physically relevant quantities. We present a new strategy of benchmarking excited-state calculations, which goes beyond excitation energies and oscillator strengths and involves the analysis of exciton properties based on the one-particle transition density matrix. By using this approach, we compare the performance of many-body excited-state methods (equation-of-motion coupled-cluster and algebraic diagrammatic construction) and time-dependent density functional theory. The selected examples illustrate the utility of different exciton descriptors in assigning state character and explaining the discrepancies among different methods. The examples include Rydberg, valence, and charge-transfer states, as well as delocalized excitonic states in large conjugated systems and states with substantial doubly excited character. PMID- 29323889 TI - Transmetalation for Flexible Pendant-Armed Schiff-Base Macrocyclic Complexes Influenced by Halide Effects. AB - Three 46-membered [2 + 2] pendant-armed Schiff-base macrocyclic dinuclear CdII and CuII complexes (2a, 2b, and 3b) and one 23-membered [1 + 1] CuII macrocycle 4a were prepared from the template-directed condensation reactions between 1,2 bis(2-aminoethoxy)-ethane and extended Cl-dialdehyde in the presence of CdX2 and CuX2 (X = Cl and Br), in which halide effects play important roles in the organization of final macrocyclic complexes in addition to the dominant influence of metal cations. Transmetalation was intensively studied among these CdII and CuII complexes with large and flexible macrocyclic ligands, including two previously synthesized dinuclear ZnII macrocycles (1a and 1b). Our results indicate that ZnII -> CuII and CdII -> CuII transmetalation proceeds more quickly than that from CdII to ZnII, and all the processes are found to be irreversible. It is noted that a [2 + 2] heterodinuclear CdIIZnII macrocyclic intermediate could be detected by ESI-MS together with [2 + 2] homodinuclear CdII and ZnII macrocyclic complexes. Furthermore, distinct halide behavior was observed in the in situ CdII -> CuII and ZnII -> CuII metal-ion exchange. That is to say, [2 + 2] macrocycles (1a and 2a) could be converted to [1 + 1] macrocycles 4a and 4b under the reflux condition in the case of CuCl2, accompanied by the configurational transformation from half-folded dinuclear ZnII and CdII to unfolded CuII macrocyclic skeleton. In contrast, CuBr2 leads to a highly efficient transmetalation to corresponding [2 + 2] dinuclear CuII complex 3b from both 1b and 2b no matter the experimental condition used. PMID- 29323888 TI - Covalent Immobilization of Cellulase Using Magnetic Poly(ionic liquid) Support: Improvement of the Enzyme Activity and Stability. AB - A magnetic nanocomposite was prepared by entrapment of Fe3O4 nanoparticles into the cross-linked ionic liquid/epoxy type polymer. The resulting support was used for covalent immobilization of cellulase through the reaction with epoxy groups. The ionic surface of the support improved the adsorption of enzyme, and a large amount of enzyme (106.1 mg/g) was loaded onto the support surface. The effect of the presence of ionic monomer and covalent binding of enzyme was also investigated. The structure of support was characterized by various instruments such as FT-IR, TGA, VSM, XRD, TEM, SEM, and DLS. The activity and stability of immobilized cellulase were investigated in the prepared support. The results showed that the ionic surface and covalent binding of enzyme onto the support improved the activity, thermal stability, and reusability of cellulase compared to free cellulase. PMID- 29323890 TI - High-Resolution Magic-Angle-Spinning NMR and Magnetic Resonance Imaging Spectroscopies Distinguish Metabolome and Structural Properties of Maize Seeds from Plants Treated with Different Fertilizers and Arbuscular mycorrhizal fungi. AB - Both high-resolution magic-angle-spinning (HRMAS) and magnetic resonance imaging (MRI) NMR spectroscopies were applied here to identify the changes of metabolome, morphology, and structural properties induced in seeds (caryopses) of maize plants grown at field level under either mineral or compost fertilization in combination with the inoculation by arbuscular mycorrhizal fungi (AMF). The metabolome of intact caryopses was examined by HRMAS-NMR, while the morphological aspects, endosperm properties and seed water distribution were investigated by MRI. Principal component analysis (PCA) was applied to evaluate 1H CPMG (Carr Purcel-Meiboom-Gill) HRMAS spectra as well as several MRI-derived parameters ( T1, T2, and self-diffusion coefficients) of intact maize caryopses. PCA score plots from spectral results indicated that both seeds metabolome and structural properties depended on the specific field treatment undergone by maize plants. Our findings show that a combination of multivariate statistical analyses with advanced and nondestructive NMR techniques, such as HRMAS and MRI, enables the evaluation of the effects induced on maize caryopses by different fertilization and management practices at field level. The spectroscopic approach adopted here may become useful for the objective appraisal of the quality of seeds produced under a sustainable agriculture. PMID- 29323891 TI - C-H Arylation of Phenanthrene with Trimethylphenylsilane by Pd/o-Chloranil Catalysis: Computational Studies on the Mechanism, Regioselectivity, and Role of o-Chloranil. AB - The transition-metal-catalyzed C-H arylation of aromatic hydrocarbons represents a useful and ideal method for the production of biaryls and multiarylated aromatic compounds. We have previously reported the palladium-catalyzed direct C H arylation of polycyclic aromatic hydrocarbons, such as phenanthrene, pyrene, and corannulene with various organosilicon, -borane, and -germanium compounds. In these reactions, o-chloranil proved to be an essential and unique promoter (stoichiometrically as an oxidant) and arylation occurred exclusively at the K region. Herein, we report our mechanistic investigation of Pd/o-chloranil catalysis in C-H arylation of phenanthrene with trimethylphenylsilane by computational calculations. The results revealed that C-H arylation occurs through a sequence of transmetalation, carbometalation, and trans-beta-hydrogen elimination steps. In addition, the triple role of o-chloranil as a ligand, oxidant, and base is also elucidated. PMID- 29323892 TI - Same Substrate, Many Reactions: Oxygen Activation in Flavoenzymes. AB - Over time, organisms have evolved strategies to cope with the abundance of dioxygen on Earth. Oxygen-utilizing enzymes tightly control the reactions involving O2 mostly by modulating the reactivity of their cofactors. Flavins are extremely versatile cofactors that are capable of undergoing redox reactions by accepting either one electron or two electrons, alternating between the oxidized and the reduced states. The physical and chemical principles of flavin-based chemistry have been investigated widely. In the following pages we summarize the state of the art on a key area of research in flavin enzymology: the molecular basis for the activation of O2 by flavin-dependent oxidases and monooxygenases. In general terms, oxidases use O2 as an electron acceptor to produce H2O2, while monooxygenases activate O2 by forming a flavin intermediate and insert an oxygen atom into the substrate. First, we analyze how O2 reaches the flavin cofactor embedded in the protein matrix through dedicated access pathways. Then we approach O2 activation from the perspective of the monooxygenases, their preferred intermediate, the C(4a)-(hydro)peroxyflavin, and the cases in which other intermediates have been described. Finally, we focus on understanding how the architectures developed in the active sites of oxidases promote O2 activation and which other factors operate in its reactivity. PMID- 29323894 TI - Consensus Conformations of Dinucleoside Monophosphates Described with Well Converged Molecular Dynamics Simulations. AB - Dinucleoside monophosphates (DNMPs) have been described using various experimental approaches as flexible molecules which generate ensembles populating at least a small set of different conformations in solution. However, due to limitations of each approach in its ability to delineate the ensemble of conformations, an accurate and quantitative description of certain conformational features has not been performed for all DNMPs. Here, we apply a temperature replica-exchange molecular dynamics approach to fully and quickly converge conformational distributions of all RNA DNMPs immersed in the TIP3P water model using the AMBER ff14 force field. For a selection of DNMPs, the conformational ensembles were also generated when immersed in the OPC water model using alternative AMBER and CHARMM force fields. The OPC water model and other force field choices did not introduce new conformational classes but shifted the populations among existing conformations. Except for pyrimidine-pyrimidine dinucleosides, all other DNMPs populated four major conformations (which are defined in the main text and labeled A-form, Ladder, Inverted, and Sheared), in addition to an Extended form. Pyrimidine-pyrimidines did not generate the Sheared conformation. Distinguishing features and stabilizing factors of each conformation were identified and assessed based on the known experimental interpretations. The configuration of the glycosidic bond and the nonbonding interactions of hydrogen bond acceptors with the 2'-hydroxyl group were found to play determining roles in stabilizing particular conformations which could serve as a guide for potential force field modifications to improve the accuracy. Additionally, we computed stacking free energies based on the DNMP conformational distributions and found significant discrepancies with a previous study. Our investigation determined that the AMBER force field was incorrectly implemented in the previous study. In the future, this simulation approach can be used to quickly analyze the effects of new force field modifications in shifting the conformational populations of DNMPs, and can can be further applied to foresee such effects in larger RNA motifs including tetranucleotides and tetraloops. PMID- 29323893 TI - Modular [FeIII8MII6] n+ (MII = Pd, Co, Ni, Cu) Coordination Cages. AB - The reaction of the simple metalloligand [FeIIIL3] [HL = 1-(4-pyridyl)butane-1,3 dione] with a variety of different MII salts results in the formation of a family of heterometallic cages of formulae [FeIII8PdII6L24]Cl12 (1), [FeIII8CuII6L24(H2O)4Br4]Br8 (2), [FeIII8CuII6L24(H2O)10](NO3)12 (3), [FeIII8NiII6L24(SCN)11Cl] (4), and [FeIII8CoII6L24(SCN)10(H2O)2]Cl2 (5). The metallic skeleton of each cage describes a cube in which the FeIII ions occupy the eight vertices and the MII ions lie at the center of the six faces. Direct current magnetic susceptibility and magnetization measurements on 3-5 reveal the presence of weak antiferromagnetic exchange between the metal ions in all three cases. Computational techniques known in theoretical nuclear physics as statistical spectroscopy, which exploit the moments of the Hamiltonian to calculate relevant thermodynamic properties, determine JFe-Cu = 0.10 cm-1 for 3 and JFe-Ni = 0.025 cm-1 for 4. Q-band electron paramagnetic resonance spectra of 1 reveal a significantly wider spectral width in comparison to [FeL3], indicating that the magnitude of the FeIII zero-field splitting is larger in the heterometallic cage than in the monomer. PMID- 29323895 TI - Computer-Assisted 3D Structure Elucidation (CASE-3D) of Natural Products Combining Isotropic and Anisotropic NMR Parameters. AB - A computer-assisted structural elucidation (CASE-3D) strategy based on the use of isotropic and/or anisotropic NMR data is proposed to elucidate relative configuration and preferred conformation in complex natural products. The methodology involves the selection of conformational models through the use of the Akaike Information Criterion and scoring of the different configurations. As illustrative examples, the methodology furnished the correct configuration of the already known compounds artemisinin (1) and homodimericin A (2). Revised structures (5 and 6), including their absolute configuration, for the recently reported curcusones I (3) and J (4) are proposed. PMID- 29323896 TI - Different Proteomic Processes Related to the Cultivar-Dependent Cadmium Accumulation of Amaranthus gangeticus. AB - To deal with the Cd contaminant of agricultural soil, pollution-safe cultivar (PSC) is developed to minimize the Cd accumulation risk in crops. The present study aimed to investigate the different proteomic responses related to Cd accumulation in different tissues between two Amaranthus gangeticus cultivars, Pen and Nan. A significantly higher Cd accumulation in Pen than in Nan was unraveled, especially in shoot. The proportions of soluble Cd in root and stem of Nan were significantly lower than those of Pen, implying lower Cd transportation from root to shoot in Nan. Higher contents of NaCl-extracted Cd in Pen than in Nan were probably attributed to the enhancement of GSH related metabolism in Pen, which activated the transportation of Cd from root to shoot. Alteration of other proteins involved in Cd detoxification and energy production also demonstrated that Pen had exhibited a stronger tolerance than Nan in dealing with Cd stress. Thus, differences in the proteomic processes associated with biochemical differences between the two typical cultivars suggested a cultivar-dependent capacity of Cd tolerance and accumulation in amaranth for the first time. PMID- 29323897 TI - A Series of Weakley-type Polyoxomolybdates: Synthesis, Characterization, and Magnetic Properties by a Combined Experimental and Theoretical Approach. AB - Using DCC as the dehydrating agent, a series of Weakley-type polyoxomolybdates [Bu4N]3{Ln[Mo5O13(OMe)4(NO)]2} (Ln = Tb, Dy, Ho, Er) were synthesized in a one pot reaction and structurally characterized by elemental, IR, UV-vis analysis, PXRD, and single-crystal X-ray diffraction. Furthermore, the static and dynamic measurements were utilized to investigate their magnetic performances. Typically, slow relaxation of magnetization was observed for Dy analogues with an energy barrier for the reversal of the magnetization of 50 K, which is the highest barrier height observed on the polyoxomolybdates-based single-molecule magnets (SMMs). For a deep understanding of the appearance of the SMM behavior on Weakley type polyoxomolybdates series, ab initio calculations on {Dy[Mo5O13(OMe)4(NO)]2}3 have been conducted. PMID- 29323898 TI - Caliber Corrected Markov Modeling (C2M2): Correcting Equilibrium Markov Models. AB - Rate processes are often modeled using Markov State Models (MSMs). Suppose you know a prior MSM and then learn that your prediction of some particular observable rate is wrong. What is the best way to correct the whole MSM? For example, molecular dynamics simulations of protein folding may sample many microstates, possibly giving correct pathways through them while also giving the wrong overall folding rate when compared to experiment. Here, we describe Caliber Corrected Markov Modeling (C2M2), an approach based on the principle of maximum entropy for updating a Markov model by imposing state- and trajectory-based constraints. We show that such corrections are equivalent to asserting position dependent diffusion coefficients in continuous-time continuous-space Markov processes modeled by a Smoluchowski equation. We derive the functional form of the diffusion coefficient explicitly in terms of the trajectory-based constraints. We illustrate with examples of 2D particle diffusion and an overdamped harmonic oscillator. PMID- 29323899 TI - Optimization of Potent and Selective Tricyclic Indole Diazepinone Myeloid Cell Leukemia-1 Inhibitors Using Structure-Based Design. AB - Myeloid cell leukemia 1 (Mcl-1), an antiapoptotic member of the Bcl-2 family of proteins, has emerged as an attractive target for cancer therapy. Mcl-1 upregulation is often found in many human cancers and is associated with high tumor grade, poor survival, and resistance to chemotherapy. Here, we describe a series of potent and selective tricyclic indole diazepinone Mcl-1 inhibitors that were discovered and further optimized using structure-based design. These compounds exhibit picomolar binding affinity and mechanism-based cellular efficacy, including growth inhibition and caspase induction in Mcl-1-sensitive cells. Thus, they represent useful compounds to study the implication of Mcl-1 inhibition in cancer and serve as potentially useful starting points toward the discovery of anti-Mcl-1 therapeutics. PMID- 29323900 TI - Enantioselective 1,2-Anionotropic Rearrangement of Acylsilane through a Bisguanidinium Silicate Ion Pair. AB - Highly enantioselective bisguanidinium-catalyzed tandem rearrangements of acylsilanes are reported. The acylsilanes were activated via an addition of fluoride on the silicon to form a penta-coordinate anionic silicate intermediate. The silicate then underwent alkyl or aryl group migration from the silicon atom to the neighboring carbonyl carbon atom (1,2-anionotropic rearrangement), followed by [1,2]-Brook rearrangement to provide the secondary alcohols in high yields with excellent enantioselectivities (up to 95% ee). The isolation of an alpha-silylcarbinol intermediate as well as DFT calculations revealed that the 1,2-anionotropic rearrangement occurred via a bisguanidinium silicate ion pair, which is the stereodetermining step. The chiral center formed is then retained without inversion through the subsequent [1,2]-Brook rearrangement. Crotyl acylsilanes were smoothly transformed into homoallylic linear crotyl alcohols with retention of E/Z geometry, and no branched alcohols were detected. This clearly suggested that the 1,2-anionotropic rearrangement occurred through a three-membered instead of a five-membered transition state. PMID- 29323901 TI - Microbial Biosynthesis of Silver Nanoparticles in Different Culture Media. AB - Microbial biosynthesis of metal nanoparticles has been extensively studied for the applications in biomedical sciences and engineering. However, the mechanism for their synthesis through microorganism is not completely understood. In this study, several culture media were investigated for their roles in the microbial biosynthesis of silver nanoparticles (AgNPs). The size and morphology of the synthesized AgNPs were analyzed by UV-vis spectroscopy, Fourier-transform infrared (FT-IR), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The results demonstrated that nutrient broth (NB) and Mueller Hinton broth (MHB) among tested media effectively reduced silver ions to form AgNPs with different particle size and shape. Although the involved microorganism enhanced the reduction of silver ions, the size and shape of the particles were shown to mainly depend on the culture media. Our findings suggest that the growth media of bacterial culture play an important role in the synthesis of metallic nanoparticles with regard to their size and shape. We believe our findings would provide useful information for further exploration of microbial biosynthesis of AgNPs and their biomedical applications. PMID- 29323902 TI - Maillard Conjugation of Sodium Alginate to Whey Protein for Enhanced Resistance to Surfactant-Induced Competitive Displacement from Air-Water Interfaces. AB - Whey protein adsorbed to an interface forms a viscoelastic interfacial film but is displaced competitively from the interface by a small-molecule surfactant added afterward. The present study evaluated the impact of the covalent conjugation of high- or low-molecular-weight sodium alginate (HA or LA) to whey protein isolate (WPI) via the Maillard reaction on the ability of whey protein to resist surfactant-induced competitive displacement from the air-water interface. Surfactant added after the pre-adsorption of conjugate to the interface increased surface pressure. At a given surface pressure, the WPI-LA conjugate showed a significantly higher interfacial area coverage and lower interfacial film thickness compared to those of the WPI-HA conjugate or unconjugated WPI. The addition of LA to the aqueous phase had little effect on the interfacial area and thickness of pre-adsorbed WPI. These results suggest the importance of the molecular weight of the polysaccharide moiety in determining interfacial properties of whey protein-alginate conjugates. PMID- 29323904 TI - [4 + 2] Cyclization of para-Quinone Methide Derivatives with Alkynes. AB - The first cyclization of para-quinone methide derivatives with alkynes was established by utilizing the [4 + 2] reaction of ortho-hydroxyphenyl-substituted para-quinone methides with ynones or benzyne, which efficiently constructed the scaffolds of chromene and xanthene in high yields (up to 88%). This protocol has not only fulfilled the task of developing cyclization reactions of para-quinone methide derivatives but also provided an efficient method for constructing chromene and xanthene scaffolds. PMID- 29323903 TI - Development of a Scalable, Chromatography-Free Synthesis of t-Bu-SMS-Phos and Application to the Synthesis of an Important Chiral CF3-Alcohol Derivative with High Enantioselectivity Using Rh-Catalyzed Asymmetric Hydrogenation. AB - A chromatography-free, asymmetric synthesis of the C2-symmetric P-chiral diphosphine t-Bu-SMS-Phos was developed using a chiral auxiliary-based approach in five steps from the chiral auxiliary in 36% overall yield. Separtion and recovery of the auxiliary were achieved with good yield (97%) to enable recycling of the chiral auxiliary. An air-stable crystalline form of the final ligand was identified to enable isolation of the final ligand by crystallization to avoid chromatography. This synthetic route was applied to prepare up to 4 kg of the final ligand. The utility of this material was demonstrated in the asymmetric hydrogenation of trifluoromethyl vinyl acetate at 0.1 mol % Rh loading to access a surrogate for the pharmaceutically relavent chiral trifluoroisopropanol fragment in excellent yield and enantiomeric excess (98.6%). PMID- 29323905 TI - A Palladium Iodide-Catalyzed Oxidative Aminocarbonylation-Heterocyclization Approach to Functionalized Benzimidazoimidazoles. AB - A novel carbonylative approach to the synthesis of functionalized 1H benzo[d]imidazo[1,2-a]imidazoles is presented. The method consists of the oxidative aminocarbonylation of N-substituted-1-(prop-2-yn-1-yl)-1H benzo[d]imidazol-2-amines, carried out in the presence of secondary nucleophilic amines, to give the corresponding alkynylamide intermediates, followed by in situ conjugated addition and double-bond isomerization, to give 2-(1-alkyl-1H benzo[d]imidazo[1,2-a]imidazol-2-yl)acetamides. Products were obtained in good to excellent yields (64-96%) and high turnover numbers (192-288 mol of product per mol of catalyst) under relatively mild conditions (100 degrees C under 20 atm of a 4:1 mixture of CO-air), using a simple catalytic system, consisting of PdI2 (0.33 mol %) in conjunction with KI (0.33 equiv). PMID- 29323906 TI - Theoretical Study of the Metal-Controlled Dehydrogenation Mechanism of MN2H3BH3 (M = Li, Na, K): A New Family of Hydrogen Storage Material. AB - Metal hydrazineboranes (MHBs), as a kind of new hydrogen storage materials, show excellent hydrogen storage performance and dehydrogenation properties. Herein, we designed multiple dehydrogenation pathways to compare the metal-controlled effect. Quantum chemistry theory is used to calculate the crystal structure for determining the molecular structure. With an increase of the metal radius, the energy difference of the isomers also increases. The dehydrogenation pathways of lithium hydrazineborane (path A) and sodium hydrazineborane (path B) appear totally similar to each other in the dehydrogenation process despite the energy barrier, as well as the comparison paths A' (for LiHB) and B' (for NaHB). In contrast with LiHB and NaHB, the tautomeric reaction occurs in the potassium hydrazineborane (KHB) first, and the following dehydrogenation path is similar to that of the LiHB and NaHB. It explores the hydrogen-release properties of the different metal hydrazineboranes and also indcates the affection of the metal in the metal hydrazineboranes hydrogen-storage system. PMID- 29323907 TI - Ultrathin Semiconducting Bi2Te2S and Bi2Te2Se with High Electron Mobilities. AB - High carrier mobility and moderate band gap are two key properties of electronic device applications. Two ultrathin two-dimensional (2D) semiconductors, namely, Bi2Te2S and Bi2Te2Se nanosheets, with novel electronic and optical properties are predicted based on first-principles calculations. The Bi2Te2S and Bi2Te2Se monolayers own moderate band gaps (~0.7 eV) and high electron mobilities (~20 000 cm2 V-1 s-1), and they can absorb sunlight efficiently through the whole incident solar spectrum. Meanwhile, layer-dependent exponential decay band gaps are also unveiled. The relatively low interlayer binding energies suggest that these monolayers can be easily exfoliated from bulk structures. Their high dynamical and thermal stabilities are further verified by phonon dispersion calculations and ab initio molecular dynamics simulations. The exceptional properties render Bi2Te2X (X = S, Se) monolayers promising candidates in future high-speed (opto)electronic devices. PMID- 29323908 TI - Correction to "Determination of Equilibrium Constant and Relative Brightness in FRET-FCS by Including the Third-Order Correlations". PMID- 29323909 TI - Synthesis of an Enantiomerically Pure Inherently Chiral Calix[4]Arene Phosphonic Acid and Its Evaluation as an Organocatalyst. AB - A facile method for the preparation of enantiomerically pure inherently chiral calix[4]arene phosphonic acid (cR,pR)-7 in four steps starting from the readily available and previously synthesized (cS)-enantiomer of calix[4]arene acetic acid 1 or its methyl ester 2 was developed. The first tests of this unique calixarene Bronsted acid with inherent chirality in organocatalysis of the aza-Diels-Alder reaction of imines with Danishefsky's diene and epoxide ring opening by benzoic acid were performed. The calixarene phosphonic acid (cR,pR)-7 shows good catalytic activities but with low enantioselectivities in these reactions. PMID- 29323910 TI - Direct Synthesis of Prussian Blue Nanoparticles in Liposomes Incorporating Natural Ion Channels for Cs+ Adsorption and Particle Size Control. AB - Coordination polymer (CP) nanoparticles (NPs) formed by a self-assembly of organic ligands and metal ions are one of the attractive materials for molecular capture and deliver/release in aqueous media. Control of particle size and prevention of aggregation among CP NPs are important factors for improving their adsorption capability in water. We demonstrate here the potential of a liposome incorporating an antibiotic ion channel as a vessel for synthesizing Prussian blue (PB) NPs, being a typical CP. In the formation of PB NPs within liposomes, the influx rate of Fe2+ ions into liposome encapsulated [Fe(CN)6]3- through channels was fundamental for the change of NPs' sizes. The optimized PB NP liposome composite showed higher adsorption capacity of Cs+ ions than that of aggregated PB NPs that are prepared without liposome in aqueous media. PMID- 29323911 TI - Capillary Condensation in 8 nm Deep Channels. AB - Condensation on the nanoscale is essential to understand many natural and synthetic systems relevant to water, air, and energy. Despite its importance, the underlying physics of condensation initiation and propagation remain largely unknown at sub-10 nm, mainly due to the challenges of controlling and probing such small systems. Here we study the condensation of n-propane down to 8 nm confinement in a nanofluidic system, distinct from previous studies at ~100 nm. The condensation initiates significantly earlier in the 8 nm channels, and it initiates from the entrance, in contrast to channels just 10 times larger. The condensate propagation is observed to be governed by two liquid-vapor interfaces with an interplay between film and bridging effects. We model the experimental results using classical theories and find good agreement, demonstrating that this 8 nm nonpolar fluid system can be treated as a continuum from a thermodynamic perspective, despite having only 10-20 molecular layers. PMID- 29323912 TI - Evaluation of Diarylheptanoid-Terpene Adduct Enantiomers from Alpinia officinarum for Neuroprotective Activities. AB - Two pairs of new diarylheptanoid-monoterpene adduct enantiomers, (+/-) alpininoids A and B [(+/-)-1 and (+/-)-2], as well as three pairs of new diarylheptanoid-sesquiterpene adduct enantiomers, (+/-)-alpininoids C-E [(+/-)-3 (+/-)-5], together with four known diarylheptanoids (6-9) were isolated from the rhizomes of Alpinia officinarum. Their structures with absolute configurations were elucidated on the basis of comprehensive spectroscopic analyses and computational calculation methods. The skeletons of these cyclohexene-containing hybrid natural products were hypothesized to be generated via a crucial Diels Alder cycloaddition between the diarylheptanoids (7 and 8) and terpenes, of which 1 represents a new carbon skeleton. All isolated compounds were evaluated for their neuroprotective effects against MPP+ (1-methyl-4-phenylpyridinium)-induced cortical neuron injury. At a concentration of 16 MUM, (+)-1 significantly increased cell viability when compared with MPP+ treatment alone. PMID- 29323914 TI - Path to the Desensitized State of Ligand-Gated Ion Channels: Why Are Inhibitory and Excitatory Receptors Different? AB - The family of pentameric ligand-gated ion channels (pLGICs) includes both inhibitory and excitatory receptors. Electrophysiological methods have explored the time-dependent ion currents induced by their neurotransmitter agonists. Kinetic modeling requires a minimum of three conformational states: resting, active, and desensitized. However, current traces of inhibitory and excitatory pLGICs differ substantially. Reproducing their basic features requires different state connectivity: whether the desensitized state is accessed from the resting or active state. It is surprising that a property as fundamental as state connectivity would differ within the same family. So, we explore the possibility that the connectivity is the same, but corresponding states differ in function: Analogous states on the free energy landscape have similar structure, but differ in ion conductivity, free energies, and agonist binding affinities. This hypothesis is tested using a kinetic model in which agonist and anesthetics modulate the receptor free energy landscape by adsorbing to the membrane in which the receptor is embedded. It was previously shown that even with only three states, the complex behavior observed for GABAAR is reproduced, including its response to anesthetics. It is demonstrated here that this hypothesis accounts for an important difference between inhibitory and excitatory receptors: their opposite responses to inhalation anesthetics. PMID- 29323913 TI - Nanoparticles with CD44 Targeting and ROS Triggering Properties as Effective in Vivo Antigen Delivery System. AB - Currently, development of subunit vaccine based on recombinant antigens or peptides has gradually become an important alternative option for traditional vaccine. However, induction of potent immune response with desired efficacy remains a major challenge. The nanoparticle-based antigen delivery system has been considered a potential carrier system to improve the efficacy of subunit vaccine. In the present study, we have designed an immune-stimulatory delivery system by conjugating three-armed PLGA to PEG via the peroxalate ester bond which is sensitive to hydrogen peroxide (H2O2), a major reactive oxygen species (ROS). Hyaluronic acid (HA), a ligand for CD44 receptors was also modified onto the outer shell of the 3s-PLGA-PEG nanoparticles to promote immune cell uptake. For in vitro and in vivo immune response assessment, a model antigen ovalbumin (OVA) was enclosed within the core of the 3s-PLGA-PEG nanoparticles to form 3s-PLGA-PO PEG/HA nanoparticles (PHO NPs). Our results showed that the PHO NPs enhanced dendritic cell maturation, antigen uptake, and antigen presentation in vitro, likely due to enhanced lysosomal escape. In vivo experiments further revealed that the PHO nanovaccine robustly promoted OVA-specific antibody production and T cell response accompanied by modest stimulation of memory T cells. In summary, the ROS-responsive PHO NPs with modified HA may be an effective vehicle antigen delivery system to promote antigen-induced immune response. PMID- 29323915 TI - Resonance Energy Transfer-Promoted Photothermal and Photodynamic Performance of Gold-Copper Sulfide Yolk-Shell Nanoparticles for Chemophototherapy of Cancer. AB - Gold (Au) core@void@copper sulfide (CuS) shell (Au-CuS) yolk-shell nanoparticles (YSNPs) were prepared in the present study for potential chemo-, photothermal, and photodynamic combination therapy, so-called "chemophototherapy". The resonance energy transfer (RET) process was utilized in Au-CuS YSNPs to achieve both enhanced photothermal and photodynamic performance compared with those of CuS hollow nanoparticles (HNPs). A series of Au nanomaterials as cores that had different localized surface plasmon resonance (LSPR) absorption peaks at 520, 700, 808, 860, and 980 nm were embedded in CuS HNPs to screen the most effective Au-CuS YSNPs according to the RET process. Thermoresponsive polymer was fabricated on these YSNPs' surface to allow for controlled drug release. Au808 CuS and Au980-CuS YSNPs were found capable of inducing the largest temperature elevation and producing the most significant hydroxyl radicals under 808 and 980 nm laser irradiation, respectively, which could accordingly cause the most severe 4T1 cell injury through oxidative stress mechanism. Moreover, doxorubicin-loaded (Dox-loaded) P(NIPAM-co-AM)-coated Au980-CuS (p-Au980-CuS@Dox) YSNPs could more efficiently kill cells than unloaded particles upon 980 nm laser irradiation. After intravenous administration to 4T1 tumor-bearing mice, p-Au980-CuS YSNPs could significantly accumulate in the tumor and effectively inhibit the tumor growth after 980 nm laser irradiation, and p-Au980-CuS@Dox YSNPs could further potentiate the inhibition efficiency and exhibit excellent in vivo biocompatibility. Taken together, this study sheds light on the rational design of Au-CuS YSNPs to offer a promising candidate for chemophototherapy. PMID- 29323916 TI - Influence of Eugenol on the Organization and Dynamics of Lipid Membranes: A Phase Dependent Study. AB - Eugenol is known for its antimicrobial effects against microorganisms responsible for infectious diseases in humans, food-borne pathogens, and oral pathogens. In spite of several reports on the antimicrobial function of eugenol by modulating the structural properties of cell membranes, there is limited information on the influence of eugenol in the lipid membrane. In this work, we explored the effect of eugenol on the organization and dynamics of large unilamellar vesicles (LUVs) of DMPC using the intrinsic fluorescence of eugenol and an extrinsic hydrophobic probe, DPH, in varying phases. The organization and dynamics of the bilayers of DMPC vesicles were monitored by utilizing varieties of steady-state and time resolved fluorescence measurements. Our results show that eugenol stabilizes the gel phase and elevates the phase-transition temperature of DMPC in a concentration-dependent fashion. Fluorescence lifetime measurements demonstrate that higher eugenol-induced water penetration was observed in fluid-phase membranes. Time-resolved anisotropy measurements demonstrate that eugenol reduces the semiangle of DPH wobbling-in-a-cone in gel-phase membranes, whereas the semiangle remains unaffected in fluid-phase membrane. This implies that the eugenol further orders the gel-phase membrane, and this could be a plausible reason for the eugenol-dependent elevation of the phase-transition temperature of DMPC. We envisage that these results will contribute important information to understand the interaction of eugenol with biological membranes. PMID- 29323917 TI - Effects of Acyl Chain Unsaturation on Activation Energy of Water Permeability across Droplet Bilayers of Homologous Monoglycerides: Role of Cholesterol. AB - Cholesterol is an important component of total lipid in mammalian cellular membranes; hence, the knowledge of its association with lipid bilayer membranes will be essential to understanding membrane structure and function. A droplet interface bilayer (DIB) provides a convenient and reliable platform through which values for permeability coefficient and activation energy of water transport across the membrane can be extracted. In this study, we investigated the effect of acyl chain structure in amphiphilic monoglycerides on the permeability of water across DIB membranes composed of cholesterol and these monoglycerides, where the acyl chain length, number of double bonds, and the position of double bond are varied systematically along the acyl chains. To elucidate the role of cholesterol in these membranes, we investigated its influence on water permeability and associated activation energies at two different cholesterol concentrations. Our systematic studies show dramatic sensitivity and selectivity of specific interaction of cholesterol with the monoglyceride bilayer having structural variations in acyl chain compositions. Our findings allow us to delineate the exquisite interplay between membrane properties and structural components and understand the balanced contribution of each. PMID- 29323918 TI - Responsive Hydrogel-based Photonic Nanochains for Microenvironment Sensing and Imaging in Real Time and High Resolution. AB - Microenvironment sensing and imaging are of importance in microscale zones like microreactors, microfluidic systems, and biological cells. But they are so far implemented only based on chemical colors from dyes or quantum dots, which suffered either from photobleaching, quenching, or photoblinking behaviors, or from limited color gamut. In contrast, structural colors from hydrogel-based photonic crystals (PCs) may be stable and tunable in the whole visible spectrum by diffraction peak shift, facilitating the visual detection with high accuracy. However, the current hydrogel-based PCs are all inappropriate for microscale detection due to the bulk size. Here we demonstrate the smallest hydrogel-based PCs, responsive hydrogel-based photonic nanochains with high-resolution and real time response, by developing a general hydrogen bond-guided template polymerization method. A variety of mechanically separated stimuli-responsive hydrogel-based photonic nanochains have been obtained in a large scale including those responding to pH, solvent, and temperature. Each of them has a submicrometer diameter and is composed of individual one-dimensional periodic structure of magnetic particles locked by a tens-of-nanometer-thick peapod-like responsive hydrogel shell. Taking the pH-responsive hydrogel-based photonic nanochains, for example, pH-induced hydrogel volume change notably alters the nanochain length, resulting in a significant variation of the structural color. The submicrometer size endows the nanochains with improved resolution and response time by 2-3 orders of magnitude than the previous counterparts. Our results for the first time validate the feasibility of using structural colors for microenvironment sensing and imaging and may further promote the applications of responsive PCs, such as in displays and printing. PMID- 29323919 TI - Effects of Aggregate Charge and Subphase Ionic Strength on the Properties of Spread Polyelectrolyte/Surfactant Films at the Air/Water Interface under Static and Dynamic Conditions. AB - We demonstrate the ability to tune the formation of extended structures in films of poly(sodium styrenesulfonate)/dodecyltrimethylammonium bromide at the air/water interface through control over the charge/structure of aggregates as well as the ionic strength of the subphase. Our methodology to prepare loaded polyelectrolyte/surfactant films from self-assembled liquid crystalline aggregates exploits their fast dissociation and Marangoni spreading of material upon contact with an aqueous subphase. This process is proposed as a potential new route to prepare cheap biocompatible films for transfer applications. We show that films spread on water from swollen aggregates of low/negative charge have 1:1 charge binding and can be compressed only to a monolayer, beyond which material is lost to the bulk. For films spread on water from compact aggregates of positive charge, however, extended structures of the two components are created upon spreading or upon compression of the film beyond a monolayer. The application of ellipsometry, Brewster angle microscopy, and neutron reflectometry as well as measurements of surface pressure isotherms allow us to reason that formation of extended structures is activated by aggregates embedded in the film. The situation upon spreading on 0.1 M NaCl is different as there is a high concentration of small ions that stabilize loops of the polyelectrolyte upon film compression, yet extended structures of both components are only transient. Analogy of the controlled formation of extended structures in fluid monolayers is made to reservoir dynamics in lung surfactant. The work opens up the possibility to control such film dynamics in related systems through the rational design of particles in the future. PMID- 29323920 TI - Aerobic, Diselenide-Catalyzed Redox Dehydration: Amides and Peptides. AB - At 2.5 mol % loadings using reaction temperatures between 30-55 degrees C, ortho functionalized diaryl diselenides are highly effective organocatalytic oxidants for aerobic redox dehydrative amidic and peptidic bond formation using triethyl phosphite as a simple terminal reductant. This simple-to-perform organocatalytic reaction relies on the ability of selenols to react directly with dioxygen in air without recourse to metal catalysts. It represents an important step toward the development of a general, economical, and benign catalytic redox dehydration protocol. PMID- 29323921 TI - Membrane Anchoring of alpha-Helical Proteins: Role of Tryptophan. AB - The function of membrane proteins relies on a defined orientation of protein relative to lipid. In apparent correlation to protein anchoring, tryptophan residues are enriched in the lipid headgroup region. To characterize the thermodynamic and structural basis of this relationship in alpha-helical membrane proteins, we examined the role of three conserved tryptophans in the folding of the heterodimeric integrin alphaIIbbeta3 transmembrane (TM) complex in phospholipid bicelles and mammalian membranes. In the homogenous lipid environment of bicelles, tryptophan was replaceable by residues of distinct polarities. The appropriate polarity was guided by the electrostatic potential of the tryptophan surrounding, suggesting that tryptophan can complement diverse environments by adjusting the orientation of its anisotropic side chain to achieve site-specific anchoring. As a sole membrane anchor, tryptophan made a contribution of 0.4 kcal/mol to TM complex stability in bicelles. In membranes, it proved more difficult to replace tryptophan even by tyrosine, indicating a superior capacity to interact with heterogeneous lipids of biological membranes. Interestingly, at intracellular TM helix ends, where integrin activation is initiated, sequence motifs that interact with lipids via opposing polarity patterns were found to restrict TM helix orientations beyond tryptophan anchoring. In contrast to bicelles, phenylalanine became the least accepted substitute in membranes, demonstrating an increased role of the hydrophobic effect. Altogether, our study implicates a wide amphiphilic range of tryptophan, membrane complexity, and the hydrophobic effect to be important factors in tryptophan membrane anchoring. PMID- 29323922 TI - Switchable Single-Mode Perovskite Microlasers Modulated by Responsive Organic Microdisks. AB - Miniaturized lasers with high spectra purity and switchable output are of crucial importance for various ultracompact photonic devices. However, it still remains a great challenge to simultaneously control the wavelength and mode purity of microscale lasers due to the insensitive response of traditional materials to external stimuli. In this work, we propose a strategy to realize switchable single-mode microlasers in perovskite microwires (MWs) coupled with responsive organic microdisk cavities. The perovskite MW therein serves as an excellent laser source to deliver multiple lasing modes, while the microdisk functions as a spectral filter to achieve single-mode outcoupling. Furthermore, on account of the sensitive responsiveness of organic materials, reversible wavelength switching of single-mode laser can be realized through adjusting the resonant modes of the microdisk cavity filter. The results will provide guidance for the rational design of nanophotonic devices with novel performances based on the characteristic of organic materials. PMID- 29323923 TI - Dynamic Changes of Intracellular Monomer Levels Regulate Block Sequence of Polyhydroxyalkanoates in Engineered Escherichia coli. AB - Biological polymer synthetic systems, which utilize no template molecules, normally synthesize random copolymers. We report an exception, a synthesis of block polyhydroxyalkanoates (PHAs) in an engineered Escherichia coli. Using an engineered PHA synthase, block copolymers poly[(R)-2-hydroxybutyrate(2HB)-b-(R)-3 hydroxybutyrate(3HB)] were produced in E. coli. The covalent linkage between P(2HB) and P(3HB) segments was verified with solvent fractionation and microphase separation. Notably, the block sequence was generated under the simultaneous consumption of two monomer precursors, indicating the existence of a rapid monomer switching mechanism during polymerization. Based on in vivo metabolic intermediate analysis and the relevant in vitro enzymatic activities, we propose a model in which the rapid intracellular 3HB-CoA fluctuation during polymer synthesis is a major factor in generating block sequences. The dynamic change of intracellular monomer levels is a novel regulatory principle of monomer sequences of biopolymers. PMID- 29323924 TI - Akt Serine/Threonine Kinase 1 Regulates de Novo Fatty Acid Synthesis through the Mammalian Target of Rapamycin/Sterol Regulatory Element Binding Protein 1 Axis in Dairy Goat Mammary Epithelial Cells. AB - Akt serine/threonine kinase acts as a central mediator in the phosphatidylinositol 3-kinase (PI3K)/Akt signaling pathway, regulating a series of biological processes. In lipid metabolism, Akt activation regulates a series of gene expressions, including genes related to intracellular fatty acid synthesis. However, the regulatory mechanisms of Akt in dairy goat mammary lipid metabolism have not been elaborated. In this study, the coding sequences of goat Akt1 gene were cloned and analyzed. Gene expression of Akt1 in different lactation stages was also investigated. For in vitro studies, a eukaryotic expression vector of Akt1 was constructed and transfected to goat mammary epithelial cells (GMECs), and specific inhibitors of Akt/mammalian target of rapamycin (mTOR) signaling were applied to GMECs. Results showed that Akt1 protein was highly conserved, and its mRNA was highly expressed in midlactation. In vitro studies indicated that Akt1 phosphorylation activated mTOR and subsequently enhanced sterol regulatory element binding protein 1 (SREBP1), thus increasing intracellular triacylglycerol content. Inhibition of Akt/mTOR signaling down-regulated the gene expression of lipogenic genes. Overall, Akt1 plays an important role in regulating de novo fatty acid synthesis in goat mammary epithelial cells, and this process probably is through the mTOR/SREBP1 axis. PMID- 29323925 TI - The Responsiveness of Patient- Reported Outcome Tools in Shoulder Surgery Is Dependent on the Underlying Pathological Condition. AB - BACKGROUND: Given the high number of available patient-reported outcome (PRO) tools for patients undergoing shoulder surgery, comparative information is necessary to determine the most relevant forms to incorporate into clinical practice. PURPOSE: To determine the utilization and responsiveness of common PRO tools in studies involving patients undergoing arthroscopic rotator cuff repair or operative management of glenohumeral instability. STUDY DESIGN: Systematic review. METHODS: A systematic review of rotator cuff and instability studies from multiple databases was performed according to PRISMA guidelines. Means and SDs of each PRO tool utilized, study sample sizes, and follow-up durations were collected. The responsiveness of each PRO tool compared with other PRO tools was determined by calculating the effect size and relative efficiency (RE). RESULTS: After a full-text review of 238 rotator cuff articles and 110 instability articles, 81 studies and 29 studies met the criteria for final inclusion, respectively. In the rotator cuff studies, 25 different PRO tools were utilized. The most commonly utilized PRO tools were the Constant (50 studies), visual analog scale (VAS) for pain (44 studies), American Shoulder and Elbow Surgeons (ASES; 39 studies), University of California, Los Angeles (UCLA; 20 studies), and Disabilities of the Arm, Shoulder and Hand (DASH; 13 studies) scores. The ASES score was found to be more responsive than all scores including the Constant (RE, 1.94), VAS for pain (RE, 1.54), UCLA (RE, 1.46), and DASH (RE, 1.35) scores. In the instability studies, 16 different PRO tools were utilized. The most commonly used PRO tools were the ASES (13 studies), Rowe (10 studies), Western Ontario Shoulder Instability Index (WOSI; 8 studies), VAS for pain (7 studies), UCLA (7 studies), and Constant (6 studies) scores. The Rowe score was much more responsive than both the ASES (RE, 22.84) and the Constant (RE, 33.17) scores; however, the ASES score remained more responsive than the Constant (RE, 1.93), VAS for pain (RE, 1.75), and WOSI (RE, 0.97) scores. CONCLUSION: Despite being frequently used in the research community, the Constant score may be less clinically useful as it was less responsive. Additionally, it is a greater burden on the provider because it requires objective strength and range of motion data to be gathered by the clinician. In contrast, the ASES score was highly responsive after rotator cuff repair and requires only subjective patient input. Furthermore, separate PRO scoring methods appear to be necessary for patients undergoing rotator cuff repair and surgery for instability as the instability specific Rowe score was much more responsive than the ASES score. PMID- 29323926 TI - Investigating Effects of Sex Differences and Prior Concussions on Symptom Reporting and Cognition Among Adolescent Soccer Players. AB - BACKGROUND: There has been increasing concern regarding the possible effect of multiple concussions on the developing brain, especially for adolescent females. Hypothesis/Purpose: The objectives were to determine if there are differences in cognitive functioning, symptom reporting, and/or sex effects from prior concussions. In a very large sample of youth soccer players, it was hypothesized that (1) there would be no differences in cognitive test performance between those with and without prior concussions, (2) baseline preseason symptoms would be better predicted by noninjury factors than concussion history, and (3) males and females with prior concussions would not have differences in cognition or symptoms. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: Participants included 9314 youth soccer players (mean = 14.8 years, SD = 1.2) who completed preseason baseline cognitive testing, symptom reporting, and a health/injury history questionnaire from the ImPACT battery (Immediate Post concussion Assessment and Cognitive Testing). On the basis of injury history, athletes were grouped by number of prior concussions: 0 (boys, n = 4012; girls, n = 3963), 1 (boys, n = 527; girls, n = 457), 2 (boys, n = 130; girls, n = 97), or >=3 (boys, n = 73; girls, n = 55). The primary measures were the 4 primary cognitive scores and the total symptom ratings from ImPACT. Primary outcomes were assessed across injury groups, controlling for age, sex, learning disability, attention-deficit/hyperactivity disorder (ADHD), treatment for headaches/migraines, substance abuse, and mental health problems. RESULTS: Cognitive test performance was not associated with concussion history but was associated with sex, age, learning disability, ADHD, and prior mental health problems. Greater symptom reporting was more strongly associated with psychiatric problems, older age, learning disability, substance abuse, headaches, being female, and ADHD than with a history of multiple concussions. Boys and girls did not differ on cognitive scores or symptom reporting based on a history of concussion. CONCLUSION: In this very large sample of youth soccer players with prior concussion, there was no evidence of negative effects on cognition, very weak evidence of negative effects on symptom reporting, and no evidence of sex * concussion differences in cognition or symptom reporting. PMID- 29323927 TI - Pulmonary Fibrous Nodule with Ossifications May Indicate Vascular Ehlers-Danlos Syndrome with Missense Mutation in COL3A1. PMID- 29323930 TI - The Economic Burden of Asthma in the United States, 2008-2013. AB - RATIONALE: Asthma is a chronic disease that affects quality of life, productivity at work and school, and healthcare use; and it can result in death. Measuring the current economic burden of asthma provides important information on the impact of asthma on society. This information can be used to make informed decisions about allocation of limited public health resources. OBJECTIVES: In this paper, we provide a comprehensive approach to estimating the current prevalence, medical costs, cost of absenteeism (missed work and school days), and mortality attributable to asthma from a national perspective. In addition, we estimate the association of the incremental medical cost of asthma with several important factors, including race/ethnicity, education, poverty, and insurance status. METHODS: The primary source of data was the 2008-2013 household component of the Medical Expenditure Panel Survey. We defined treated asthma as the presence of at least one medical or pharmaceutical encounter or claim associated with asthma. For the main analysis, we applied two-part regression models to estimate asthma related annual per-person incremental medical costs and negative binomial models to estimate absenteeism associated with asthma. RESULTS: Of 213,994 people in the pooled sample, 10,237 persons had treated asthma (prevalence, 4.8%). The annual per-person incremental medical cost of asthma was $3,266 (in 2015 U.S. dollars), of which $1,830 was attributable to prescription medication, $640 to office visits, $529 to hospitalizations, $176 to hospital-based outpatient visits, and $105 to emergency room visits. For certain groups, the per-person incremental medical cost of asthma differed from that of the population average, namely $2,145 for uninsured persons and $3,581 for those living below the poverty line. During 2008-2013, asthma was responsible for $3 billion in losses due to missed work and school days, $29 billion due to asthma-related mortality, and $50.3 billion in medical costs. All combined, the total cost of asthma in the United States based on the pooled sample amounted to $81.9 billion in 2013. CONCLUSIONS: Asthma places a significant economic burden on the United States, with a total cost of asthma, including costs incurred by absenteeism and mortality, of $81.9 billion in 2013. PMID- 29323928 TI - Association between Household Air Pollution Exposure and Chronic Obstructive Pulmonary Disease Outcomes in 13 Low- and Middle-Income Country Settings. AB - RATIONALE: Forty percent of households worldwide burn biomass fuels for energy, which may be the most important contributor to household air pollution. OBJECTIVES: To examine the association between household air pollution exposure and chronic obstructive pulmonary disease (COPD) outcomes in 13 resource-poor settings. METHODS: We analyzed data from 12,396 adult participants living in 13 resource-poor, population-based settings. Household air pollution exposure was defined as using biomass materials as the primary fuel source in the home. We used multivariable regressions to assess the relationship between household air pollution exposure and COPD outcomes, evaluated for interactions, and conducted sensitivity analyses to test the robustness of our findings. MEASUREMENTS AND MAIN RESULTS: Average age was 54.9 years (44.2-59.6 yr across settings), 48.5% were women (38.3-54.5%), prevalence of household air pollution exposure was 38% (0.5-99.6%), and 8.8% (1.7-15.5%) had COPD. Participants with household air pollution exposure were 41% more likely to have COPD (adjusted odds ratio, 1.41; 95% confidence interval, 1.18-1.68) than those without the exposure, and 13.5% (6.4-20.6%) of COPD prevalence may be caused by household air pollution exposure, compared with 12.4% caused by cigarette smoking. The association between household air pollution exposure and COPD was stronger in women (1.70; 1.24-2.32) than in men (1.21; 0.92-1.58). CONCLUSIONS: Household air pollution exposure was associated with a higher prevalence of COPD, particularly among women, and it is likely a leading population-attributable risk factor for COPD in resource-poor settings. PMID- 29323929 TI - Variation in Cilia Protein Genes and Progression of Lung Disease in Cystic Fibrosis. AB - RATIONALE: Cystic fibrosis, like primary ciliary dyskinesia, is an autosomal recessive disorder characterized by abnormal mucociliary clearance and obstructive lung disease. We hypothesized that genes underlying the development or function of cilia may modify lung disease severity in persons with cystic fibrosis. OBJECTIVES: To test this hypothesis, we compared variants in 93 candidate genes in both upper and lower tertiles of lung function in a large cohort of children and adults with cystic fibrosis with those of a population control dataset. METHODS: Variants within candidate genes were tested for association using the SKAT-O test, comparing cystic fibrosis cases defined by poor (n = 127) or preserved (n = 127) lung function with population controls (n = 3,269 or 3,148, respectively). Associated variants were then tested for association with related phenotypes in independent datasets. RESULTS: Variants in DNAH14 and DNAAF3 were associated with poor lung function in cystic fibrosis, whereas variants in DNAH14 and DNAH6 were associated with preserved lung function in cystic fibrosis. Associations between DNAH14 and lung function were replicated in disease-related phenotypes characterized by obstructive lung disease in adults. CONCLUSIONS: Genetic variants within DNAH6, DNAH14, and DNAAF3 are associated with variation in lung function among persons with cystic fibrosis. PMID- 29323931 TI - Esophageal Manometry and Regional Transpulmonary Pressure in Lung Injury. AB - RATIONALE: Esophageal manometry is the clinically available method to estimate pleural pressure, thus enabling calculation of transpulmonary pressure (Pl). However, many concerns make it uncertain in which lung region esophageal manometry reflects local Pl. OBJECTIVES: To determine the accuracy of esophageal pressure (Pes) and in which regions esophageal manometry reflects pleural pressure (Ppl) and Pl; to assess whether lung stress in nondependent regions can be estimated at end-inspiration from Pl. METHODS: In lung-injured pigs (n = 6) and human cadavers (n = 3), Pes was measured across a range of positive end expiratory pressure, together with directly measured Ppl in nondependent and dependent pleural regions. All measurements were obtained with minimal nonstressed volumes in the pleural sensors and esophageal balloons. Expiratory and inspiratory Pl was calculated by subtracting local Ppl or Pes from airway pressure; inspiratory Pl was also estimated by subtracting Ppl (calculated from chest wall and respiratory system elastance) from the airway plateau pressure. MEASUREMENTS AND MAIN RESULTS: In pigs and human cadavers, expiratory and inspiratory Pl using Pes closely reflected values in dependent to middle lung (adjacent to the esophagus). Inspiratory Pl estimated from elastance ratio reflected the directly measured nondependent values. CONCLUSIONS: These data support the use of esophageal manometry in acute respiratory distress syndrome. Assuming correct calibration, expiratory Pl derived from Pes reflects Pl in dependent to middle lung, where atelectasis usually predominates; inspiratory Pl estimated from elastance ratio may indicate the highest level of lung stress in nondependent "baby" lung, where it is vulnerable to ventilator-induced lung injury. PMID- 29323932 TI - The effects of breath alcohol concentration on postural control. AB - BACKGROUND: Two of the 3 standardized field sobriety tests that U.S. law enforcement uses at roadside checks have a postural equilibrium component to them. Those tests have been validated to detect impairment caused by blood alcohol concentrations (BACs) of 0.08 g/dL or above. Many medical and traffic safety associations support a lower limit, and one state, Utah, has passed a law to lower the limit to 0.05 g/dL. Many studies have examined the effects of alcohol on postural control (of which postural equilibrium is a component), with a consensus emerging that impairment is usually found at BACs greater than 0.06 g/dL. Most of these studies, however, had a relatively small number of subjects, usually between 10 and 30. The current study collected data from a much larger sample. OBJECTIVE: The objective of this study was to provide additional evidence that posture control is negatively affected at BACs greater than 0.06 g/dL or breath alcohol concentrations (BrACs) of 0.06 g/210 L. METHOD: This was a between subjects study, with BrAC group as the independent variable (5 levels: 0.00, 0.04, 0.06, 0.08, and 0.10 g/210 L); 4 measures of postural control as the dependent variables; and age, height, and weight as the covariates. Posture control was measured with a force-sensing platform connected to a computer. The feet's center of pressure (CoP) on the platform was recorded and the corresponding movement of the body in the anterior-posterior and lateral planes was derived. Participants (N = 96) were randomly assigned to one of the BrAC groups. Positive BrAC groups were compared to the zero BrAC group. Data were examined with hierarchical multiple regression. RESULTS: Adjusted for age, height, and weight, the main effect of lateral CoP with eyes open was not statistically significant. There was a statistically significant main effect of alcohol on anterior-posterior CoP excursion with eyes open and with eyes closed and lateral CoP excursion with eyes closed. For all 3 of those variables, only BrACs of 0.08 and 0.10 g/210 L produced differences against zero BrAC. Although the main effect of alcohol on Lateral CoP Excursion with eyes open was not statistically significant, the contrasts between 0 and 0.08 and 0 and 0.10 g/210L BrAC were in the hypothesized direction. CONCLUSION: The current study did not directly address the issue of whether the sobriety tests are sensitive to BrACs of 0.05 g/210 L or above; rather, it provides additional evidence that postural control, one of the components of those tests, is relatively unaffected by BrACs lower than 0.08 g/210 L. Additional research is needed on the diagnostic characteristics of the sobriety tests at BrACs lower than 0.08 g/210 L. PMID- 29323934 TI - Safe speed limits for a safe system: The relationship between speed limit and fatal crash rate for different crash types. AB - OBJECTIVE: The objective of this article is to provide empirical evidence for safe speed limits that will meet the objectives of the Safe System by examining the relationship between speed limit and injury severity for different crash types, using police-reported crash data. METHOD: Police-reported crashes from 2 Australian jurisdictions were used to calculate a fatal crash rate by speed limit and crash type. Example safe speed limits were defined using threshold risk levels. RESULTS: A positive exponential relationship between speed limit and fatality rate was found. For an example fatality rate threshold of 1 in 100 crashes it was found that safe speed limits are 40 km/h for pedestrian crashes; 50 km/h for head-on crashes; 60 km/h for hit fixed object crashes; 80 km/h for right angle, right turn, and left road/rollover crashes; and 110 km/h or more for rear-end crashes. CONCLUSIONS: The positive exponential relationship between speed limit and fatal crash rate is consistent with prior research into speed and crash risk. The results indicate that speed zones of 100 km/h or more only meet the objectives of the Safe System, with regard to fatal crashes, where all crash types except rear-end crashes are exceedingly rare, such as on a high standard restricted access highway with a safe roadside design. PMID- 29323935 TI - Shape-related characteristics of age-related differences in subcortical structures. AB - OBJECTIVES: With an increasing aging population, it is important to understand biological markers of aging. Subcortical volume is known to differ with age; additionally considering shape-related characteristics may provide a better index of age-related differences. Fractal dimensionality is more sensitive to age related differences, but is borne out of mathematical principles, rather than neurobiological relevance. We considered four distinct measures of shape and how they relate to aging and fractal dimensionality: surface-to-volume ratio, sphericity, long-axis curvature, and surface texture. METHODS: Structural MRIs from a combined sample of over 600 healthy adults were used to measure age related differences in the structure of the thalamus, putamen, caudate, and hippocampus. For each, volume and fractal dimensionality were calculated, as well as four distinct shape measures. These measures were examined for their utility in explaining age-related variability in brain structure. RESULTS: The four shape measures were able to account for 80%-90% of the variance in fractal dimensionality. Of the distinct shape measures, surface-to-volume ratio was the most sensitive biomarker. CONCLUSION: Though volume is often used to characterize inter-individual differences in subcortical structures, our results demonstrate that additional measures can be useful complements. Our results indicate that shape characteristics are useful biological markers of aging. PMID- 29323933 TI - Cardioventilatory Control in Preterm-born Children and the Risk of Obstructive Sleep Apnea. AB - RATIONALE: The contribution of ventilatory control to the pathogenesis of obstructive sleep apnea (OSA) in preterm-born children is unknown. OBJECTIVES: To characterize phenotypes of ventilatory control that are associated with the presence of OSA in preterm-born children during early childhood. METHODS: Preterm and term-born children without comorbid conditions were enrolled. They were categorized into an OSA group and a non-OSA group on the basis of polysomnography. MEASUREMENTS AND MAIN RESULTS: Loop gain, controller gain, and plant gain, reflecting ventilatory instability, chemoreceptor sensitivity, and blood gas response to a change in ventilation, respectively, were estimated from spontaneous sighs identified during polysomnography. Cardiorespiratory coupling, a measure of brainstem maturation, was estimated by measuring the interval between inspiration and the preceding electrocardiogram R-wave. Cluster analysis was performed to develop phenotypes based on controller gain, plant gain, cardiorespiratory coupling, and gestational age. The study included 92 children, 63 of whom were born preterm (41% OSA) and 29 of whom were born at term (48% OSA). Three phenotypes of ventilatory control were derived with risks for OSA being 8%, 47%, and 77% in clusters 1, 2, and 3, respectively. There was a stepwise decrease in controller gain and an increase in plant gain from clusters 1 to 3. Children in cluster 1 had significantly higher cardiorespiratory coupling and gestational age than clusters 2 and 3. No difference in loop gain was found between clusters. CONCLUSIONS: The risk for OSA could be stratified according to controller gain, plant gain, cardiorespiratory coupling, and gestational age. These findings could guide personalized care for children at risk for OSA. PMID- 29323936 TI - Sleep Research: A Primer for Media Scholars. AB - The average amount of sleep people of all ages get has declined sharply in the past 50 years. The detrimental health effects of sleep deprivation are well documented and substantial. Even though electronic media use often takes place in the hours before sleep, the extent to which media use may interact with sleep is understudied and not well understood. Communication scholars are well positioned to contribute to this area, as a systematic, theoretical understanding of the relationship between media and sleep is still lacking. This primer charts the state of knowledge on electronic media and sleep and explores possible next steps. First, we introduce the problem of sleep deprivation and describe the basic science of sleep with relevant terminology. Then, we review the research on electronic media and sleep and offer an agenda for research. PMID- 29323938 TI - Rural Nurse Managers' Perspectives into Better Communication Practices. AB - The aim of this qualitative study was to describe the communication perceptions of nurse managers in rural areas. Prior research in tertiary settings was the impetus for studying viewpoints in other settings. Grounded theory methods were used to collect and analyze interview data with nine managers from regional, critical access hospitals, and home health settings in central Pennsylvania. Nurse Managers associated successful communication with job satisfaction, work efficiency, and employee retention. Circumstances influencing communication involved discussion tones, techniques, resources, and environmental factors. Recommended techniques included regular conversations, diverse messaging, and conferencing huddles to improve information dissemination and workflow in rural settings. PMID- 29323939 TI - Prevalence of Pain and Effects of a Brief Mindfulness-Based Intervention on Chinese Community-Dwelling Older Adults with Chronic Pain. AB - This study aimed to screen the prevalence of pain in Chinese community-dwelling older adults and to evaluate the effects of a brief mindfulness-based intervention on chronic pain. The prevalence of pain among Chinese older adults was 40.5%. The brief mindfulness intervention had significant effects on reducing pain intensity (P = 0.004), and increasing the mindfulness measures: observing, acting with awareness, non-judging and non-reactivity inner experience (all P values < 0.05). Pain prevalence among Chinese older adults was relatively high. This study showed that a brief mindfulness-based intervention reduced ratings of pain intensity and enhanced ratings of the perception of mindfulness. PMID- 29323940 TI - Elevated Blood Pressure in Low-Income, Rural Preschool Children is Associated with Maternal Hypertension during Pregnancy. AB - Hypertension (HTN) is a significant public health problem in adults, and rates of HTN are rising in children as well. The purpose of this study was to determine blood pressure (BP) and body mass index (BMI) levels in low-income, rural preschool children and investigate the relationship between child and maternal factors that impact BP and BMI in these children. Results indicated high rates of overweight/obesity and elevated BP levels in this sample. Maternal hypertension during pregnancy also emerged as a predictor of elevated BP in their children. PMID- 29323941 TI - Barriers to Health Care Access for Low Income Families: A Review of Literature. AB - Having a low-income presents a variety of problems for families and children, with access to health care being the most complex and prevalent. Although there are many challenges for low-income families to access adequate health care in the United States, the key barriers identified in this review of literature are a lack of education, complications with health insurance, and a distrust of health care providers. Each obstacle is influenced by a myriad of factors that affect vulnerable sub-groups of low-income families. Acknowledging the barriers that prevent access to health care for low-income families is the first step towards determining future sustainable solutions. PMID- 29323943 TI - Electronic Media Use and Sleep Among Preschoolers: Evidence for Time-Shifted and Less Consolidated Sleep. AB - This study examined the association between electronic media use and sleep among preschoolers, using a national sample of 402 mothers of 3- to 5-year-olds. Participants completed an online survey assessing preschoolers' electronic media use, bedtime and wake time, sleep time, napping behaviors, and sleep consolidation. Results showed that heavier television use and tablet use, both overall and in the evening, were associated with later bedtimes and later wake times, but not with fewer hours of sleep, providing evidence for a time-shifting process. In addition, heavier daily television use and evening smartphone use were associated with increased daytime napping. Moreover, heavier daily television use, daily and evening smartphone use, and evening tablet use were associated with poorer sleep consolidation, suggesting less mature sleep patterns. These findings indicate that media effects on the timing of sleep and the proportion of sleep that occurs at night are important to consider when assessing the health risks of electronic media on children. PMID- 29323942 TI - Comparison of Juvenile Allogenous Articular Cartilage and Bone Marrow Aspirate Concentrate Versus Microfracture With and Without Bone Marrow Aspirate Concentrate in Arthroscopic Treatment of Talar Osteochondral Lesions. AB - BACKGROUND: The purpose of this study was to compare the functional and radiographic outcomes of patients who received juvenile allogenic chondrocyte implantation with autologous bone marrow aspirate (JACI-BMAC) for treatment of talar osteochondral lesions with those of patients who underwent microfracture (MF). METHODS: A total of 30 patients who underwent MF and 20 who received DeNovo NT for JACI-BMAC treatment between 2006 and 2014 were included. Additionally, 17 MF patients received supplemental BMAC treatment. Retrospective chart review was performed and functional outcomes were assessed pre- and postoperatively using the Foot and Ankle Outcome Score and Visual Analog pain scale. Postoperative magnetic resonance images were reviewed and evaluated using a modified Magnetic Resonance Observation of Cartilage Tissue (MOCART) score. Average follow-up for functional outcomes was 30.9 months (range, 12-79 months). Radiographically, average follow-up was 28.1 months (range, 12-97 months). RESULTS: Both the MF and JACI-BMAC showed significant pre- to postoperative improvements in all Foot and Ankle Outcome Score subscales. Visual Analog Scale scores also showed improvement in both groups, but only reached a level of statistical significance ( P < .05) in the MF group. There were no significant differences in patient reported outcomes between groups. Average osteochondral lesion diameter was significantly larger in JACI-BMAC patients compared to MF patients, but size difference had no significant impact on outcomes. Both groups produced reparative tissue that exhibited a fibrocartilage composition. The JACI-BMAC group had more patients with hypertrophy exhibited on magnetic resonance imaging (MRI) than the MF group ( P = .009). CONCLUSION: JACI-BMAC and MF resulted in improved functional outcomes. However, while the majority of patients improved, functional outcomes and quality of repair tissue were still not normal. Based on our results, lesions repaired with DeNovo NT allograft still appeared fibrocartilaginous on MRI and did not result in significant functional gains as compared to MF. LEVEL OF EVIDENCE: Level III, comparative series. PMID- 29323944 TI - MODIFICATION OF SEA ANEMONE BEHAVIOR BY SYMBIOTIC ZOOXANTHELLAE: PHOTOTAXIS. AB - The sea anemone Anthopleura elegantissima, with and without endosymbiotic zooxanthellae, was tested for evidence of phototactic behavior. Anemones with zooxanthellae always displayed phototaxis, either positive or negative depending on the experimental light intensity and the light intensity of the habitat from which the animals were taken. Anemones without zooxanthellae-even those that had previously harbored zooxanthellae and that were genetically identical clone-mates of phototactic individuals-never displayed phototaxis, appearing completely indifferent to light and shade. The results indicate that phototaxis in this sea anemone depends directly on the presence of its symbiotic algae. It is suggested that the flexible phototactic behavior of the anemone may play an important role in favorably regulating the amount of light to which the zooxanthellae are exposed. PMID- 29323945 TI - ULTRASTRUCTURE OF A CEPHALOPOD PHOTOPHORE. I. STRUCTURE OF THE PHOTOGENIC TISSUE. AB - One type of photophore of the deep sea squid Pterygioteuthis microlampas was examined with the electron microscope and its fine structure described. The photogenic tissue is composed of four cell types each with distinctive morphology which suggests their function. The photocytes branch and ramify throughout the central region of the photophore and have an extensive system of microvilli (the photogenic organelle) which are arranged about a central blood filled lumen. The photocytes apparently develop inside a sheath cell and are surrounded by a sheath which is continuous with the basement membrane of the blood vessels. The photocytes and associated sheath cells are surrounded by packing cells whose cytoplasm is replaced with a homogeneous granular material. Finally, cells containing many mitochondria branch and ramify throughout the photogenic area. Apparently the circulatory system is in direct contact with the photocytes, and acellular blood vessels, composed only of basement membrane, are found throughout the photogenic tissue. The similarity between photoproductive organelles and photoreceptive organelles is striking. PMID- 29323946 TI - MODIFICATION OF SEA ANEMONE BEHAVIOR BY SYMBIOTIC ZOOXANTHELLAE: EXPANSION AND CONTRACTION. AB - The pattern of expansion and contraction by the sea anemone Anthopleura elegantissima differs in individuals with or without endosymbiotic zooxanthellae. Anemones without zooxanthellae, found in dark habitats, do not regularly expand or contract under changes in light. Anemones with zooxanthellae expand in moderate light and contract in intense light or in darkness, with striking uniformity. However, this behavior does not always depend directly on the presence of zooxanthellae. Anemones that have previously had endosymbiotic zooxanthellae subsequently expand and contract with changes in light in the absence of these algae. Thus, conditioned responses may be involved. It is suggested that expansion and contraction of the anemones may play an important role in favorably regulating the amount of light to which their zooxanthellae are exposed. PMID- 29323947 TI - ULTRASTRUCTURE OF A CEPHALOPOD PHOTOPHORE. II. IRIDOPHORES AS REFLECTORS AND TRANSMITTERS. AB - The iridophores of one type of photophore of the deep sea squid, Pterygioteuthis microlampas were examined with the electron microscope and four different types were found. Three of these types have not been previously described. The regular iridophores of the posterior cup appear to be one-fourth wave length reflectors and redirect the light produced by the photogenic tissue outward. The regular iridophores of the anterior cap have a different spacing and platelet thickness so they apparently pass blue light. The irregular iridophores form a cone around the photogenic tissue and probably randomly reflect light back into the photogenic tissue. The iridophores of the lens have many precisely aligned iridosomes with platelet spacing and thickness so that they appear to collimate light passing through them. It appears that these three types of iridophores reflect, transmit and collimate the light produced in the photophore to match the background illumination hence making an efficient countershading mechanism. A fourth type of iridophore, the wide spaced iridophore, is rarely encountered and probably does not have a significant role in light attenuation in the photophore. PMID- 29323948 TI - SOME CONSEQUENCES OF SEXUAL DIMORPHISM: FEEDING IN MALE AND FEMALE FIDDLER CRABS, UCA PUGNAX (SMITH). AB - 1. There were no differences in the respiratory rates of male and female Uca pugnax of comparable sizes. 2. The amount of salt marsh sediment ingested by starved male and female crabs was similar. 3. The number and weight of fecal pellets produced by male and female crabs were similar, as was the organic matter content. 4. The above suggests that there are minimal differences in food demands and digestive efficiencies between the sexes, yet the enlarged claw of the fiddler crabs cannot be used for feeding. This requires some compensatory mechanism in male crabs. 5. Male fiddlers do show about half the feeding motions per unit time compared to females, but they compensate by feeding about twice as long. This is corroborated by field observations. 6. Further compensation, if needed, could be achieved by the slightly larger holding surface of the feeding claw in males, perhaps allowing the grasping of larger fragments of marsh sediment. PMID- 29323949 TI - STUDIES ON THE REPRODUCTIVE SYSTEMS OF SEA-STARS. I. THE MORPHOLOGY AND HISTOLOGY OF THE GONAD OF ASTERIAS VULGARIS. AB - The results reported here provide a detailed account of the general morphology and histology of the male and female gonads of the sea-star Asterias vulgaris. The reproductive system of this sea-star (normal five-rayed specimens) consists of 10 separate units, each located proximally on the lateral wall of the ray, one on either side of the ray. Each unit is composed of a gonad, a gonoduct, and genital branches of the aboral haemal and coelomic rings. The gonad is a single bag-like structure with several protrusions (termed major and minor acini) extending from its surface. Its wall is composed of two sacs, one inside the other, separated by the genital coelomic (perihaemal) sinus. The outer sac consists of visceral peritoneum, an elastic-collagenous connective tissue layer, and many epithelial cells and circular muscle fibers. The inner sac comprises epithelial cells and longitudinal muscle fibers, the haemal sinus and contents, and germinal epithelium. The haemal sinus includes the haemal sinus space, filled with granular haemal fluid, cells, and collagen and other fine fibers enclosed by two fibrous laminae. Significant modifications in the form of the gonad and in the condition and relationships of the tissues which compose it occur during the annual reproductive cycle. Both sacs are stretched during growth of the gonad, the outer layers becoming attenuated and the inner layers being pressed against the outer, often obliterating the genital coelomic (perihaemal) sinus. The inner group of tissues is often extensively folded, pushing ridges formed from the inner wall of the haemal sinus and germinal epithelium into the lumen of the gonad. It is pointed out that previous studies on the gonads of asteroids have been relatively few, with no study for any species dealing comprehensively with morphological and histological details of the gonad based on both light and electron microscopy. Comparison of the results of the present study with observations of previous investigators indicates that although significant differences occur (especially in morphological terms), the general features of the histology of the wall of the gonad of many sea-stars are similar. In order to broaden our base for comparative studies, and to pursue significant problems, morphological, histological, histochemical, and ultrastructural investigations should be extended to as many asteroid species as possible. PMID- 29323950 TI - FEEDING OF OVALIPES GUADULPENSIS (SAUSSURE) (DECAPODA: BRACHYURA: PORTUNIDAE), AND MORPHOLOGICAL ADAPTATIONS TO A BURROWING EXISTENCE. PMID- 29323951 TI - THE OCCURRENCE, DISTRIBUTION AND ATTACHMENT OF THE PEDUNCULATE BARNACLE OCTOLASMIS MULLERI (COKER) ON THE GILLS OF CRABS, PARTICULARLY THE BLUE CRAB. CALLINECTES SAPIDUS RATHBUN. AB - 1. O. mulleri was present on the gills of most crab species in Beaufort Inlet but not on C. sapidus further upriver indicating that salinity is probably a factor controlling the incidence of the barnacle. 2. The distribution of the barnacle on the individual gills of C. sapidus has been analyzed and the factors affecting this distribution discussed. The main factors are the cleaning action of the epipodites and the respiratory flow of the crab. 3. The barnacle settlement stage larva (cyprid) attaches to blue crab gills a short distance in from the gill margin. The orientation of the larva at settlement is a response to the respiratory flow of the crab resulting in the cirral net of the young barnacle facing into the current. 4. The cement apparatus and internal stalk structures of O. mulleri and Lepas anatifera are compared. PMID- 29323952 TI - LARVAL SETTLEMENT OF A SYMBIOTIC HYDROID: SPECIFICITY AND NEMATOCYST RESPONSES IN PLANULAE OF PROBOSCIDACTYLA FLAVICIRRATA. AB - Planulae of the symbiotic hydroid Proboscidactyla flavicirrata settle on the rims of sabellid tubes by adhering sequentially and specifically to two different substrates. For both steps, nematocysts are the agents of adhesion. Although the cnidoblasts of these planulae require local excitation, they are subject to endogenous controls. Upon being swept into the plumes of tentacular cirri that sabellids extend from their tubes, planulae attach to individual pinnules (branches of the tentacular cirri) by discharging nematocysts. Within 2 min following attachment, the planulae cease discharging nematocysts in response to additional pinnule contacts. Planulae transfer to the rims of sabellid tubes by adhering with nematocysts when the sabellids retract their plumes. Cnidoblasts of planulae only become responsive to contact with sabellid tube after 4 min or more of continuous attachment to pinnules. Transfer initiates metamorphosis. Planulae are capable of settling and metamorphosing on Eudistylia vancouveri, a sabellid species that is sympatric with the normal hosts of Proboscidactyla, but will not support colonies. Apparently the deficiencies of Eudistylia as a host are manifested only after planula metamorphosis. PMID- 29323953 TI - WATER TRANSPORT RATES OF THE TUNICATE CIONA INTESTINALIS. AB - Sea water transport rates of the tunicate Ciona intestinalis were determined by measuring the volume of sea water transported through the specimen, and measuring the number of particles cleared by the specimen in a given time interval. The rate was also determined directly by matching the flow produced by the tunicate to that produced by a calibrated pump. Ciona transports sea water at variable rates; at times, it does not transport at all. The rate limits covering all techniques are: lower limit, 2.5 ml/hr/g wet weight and upper limit, 185 ml/hr/g wet weight; the average value based on clearance and direct measurements is 50 ml/ hr/g wet weight. Even at the lowest rate found, transport is rapid enough to ensure complete mixing between sea water and reaction or absorption sites in the pharyngeal chamber, alimentary tract or atrial chamber. We conclude that the rate controlling process for absorption of oxygen, vanadate ions, micro-organisms or organic detritus is not the rate of passage of the feeding current, but rather the rate of the intrinsic absorption process such as complex formation, ion exchange or adsorption. PMID- 29323954 TI - DEVELOPMENT OF THE EOLID NUDIBRANCH CUTHONA NANA (ALDER AND HANCOCK, 1842), AND ITS RELATIONSHIP WITH A HYDROID AND HERMIT CRAB. AB - 1. The larval development, metamorphosis, and postlarval growth of the eolid nudibranch, Cuthona nana, is described. Hatching occurred within 19 days at 11-13 degrees C. The lecithotrophic veligers remained nonpelagic and proceeded to metamorphose within another two days. 2. Adult nutrition did not affect egg size or subsequent development and metamorphosis. 3. Embryogenesis, hatching, and metamorphosis were unaffected by the presence or absence of the adult nudibranch's prey, the hydroid Hydractinia echinata. 4. Different temperatures altered the rate of development and of metamorphosis but not the type of development. Egg masses collected in the field and incubated at the temperature at which they were collected invariably produced nonpelagic lecithotrophic veligers which then metamorphosed. 5. Newly metamorphosed specimens of C. nana survived for up to six weeks at 11-13 degrees C and ten weeks at 4 degrees C in the absence of H. echinata. 6. In the presence of abundant food, specimens of C. nana deposited fertile egg masses within 11 weeks after metamorphosis at 11-13 degrees C, and continued feeding and ovipositing for two months. 7. Cuthona nana feeds specifically on Hydractinia echinata, which in Gosport Harbor is found predominantly on shells occupied by Pagurus acadianus. As the hermit crabs move about, postlarvae of C. nana are swept up by the gastrozooids of H. echinata, are not eaten by the polyps but reorient and feed on hydroid tissue. 8. Nonpelagic development in C. nana appears to result in a patchy distribution of postlarvae on the bottom, and an uneven, nonrandom distribution of young nudibranchs on the H. echinata colonies. 9. Cuthona nana does not kill the H. echinata colonies it preys upon, but only crops some of the polyps before leaving the colony to find a mate or deposit eggs. Lost polyps are subsequently regenerated. PMID- 29323955 TI - STUDIES ON FUNCTIONAL MORPHOLOGY IN THE DIGESTIVE SYSTEM OF OREASTER RETICULATUS (L.) (ASTEROIDEA). AB - This paper presents, with illustrations, a description of the digestive system of Oreaster reticulatus, a species for which such anatomical details have hitherto been unavailable. Special features of the digestive system include a large, highly eversible cardiac stomach with a particularly well-developed system of securing and retracting fibers; a highly specialized pyloric stomach giving rise to paired pyloric caeca, each of which is associated with an unusually elaborate Tiedemann's pouch featuring a series of secondary pouches branching off along its length; and a set of very voluminous intestinal caeca. By comparison with other asteroids for which anatomical details and feeding biology are known (especially Patiria miniata and Porania pulvillus), it is suggested that O. reticulatus is equipped for a variety of modes of feeding. The cardiac stomach is well adapted for the digestion of large pieces of food outside the body; it may also function as a flagellary-mucous particle-collector, as the similar organ of Patiria is thought to do. The specializations of the upper part of the digestive system are closely similar to corresponding organs in the known particle-feeding species Porania pulvillus, and it seems probable that Oreaster may use its Tiedemann's pouches and intestinal caeca to bring particle-laden water into the digestive system in a manner similar to that described for Porania. Such direct observations as are available on the feeding behavior of O. reticulatus tend to confirm the conclusions inferred on indirect, anatomical grounds. PMID- 29323956 TI - INTERACTION OF IONIZED AND UN-IONIZED AMMONIA ON SHORT-TERM SURVIVAL AND GROWTH OF PRAWN LARVAE, MACROBRACHIUM ROSENBERGH. AB - 1. The toxicity of ammonia to Macrobrachium larvae was tested at pH 6.83, 7.60, and 8.34, and the respective 144 hr LC50 values were 80, 44, and 14 mg ammonia/liter. 2. Toxicity of ammonia was not due solely to the NH3 molecule. In solutions of different pH and equal NH3 concentrations, survival was greatly reduced as NH4+ levels increased. 3. A model is proposed to explain the differential effect of ammonia as pH varies. At higher pH (8.4) toxicity results from copious diffusion of NH3 into larvae. At lower pH (6.8) toxicity is thought to result from competitive inhibition of Na+ transport by NH4+. 4. Retardation of growth was documented in sublethal concentrations of ammonia at 6.8 and 7.6. The average dry weight was about 26% less than that of controls (P < 0.05) after a seven day exposure. 5. Results are discussed relevant to the culture and maintenance of crustaceans, and it is concluded that ammonia will not pose a substantial threat in adequately managed systems. PMID- 29323957 TI - DESCRIPTIONS OF THE LARVAE OF STICHASTER AUSTRALIS (VERRILL) AND COSCINASTERIAS CALAMARIA (GRAY) (ECHINODERMATA: ASTEROIDEA) FROM NEW ZEALAND, OBTAINED FROM LABORATORY CULTURE. AB - 1. Methods for the laboratory rearing of larvae of the starfishes Stichaster australis and Coscinasterias calamaria are described. 2. Larval development in S. australis and C. calamaria is very similar, although C. calamaria has a slightly faster rate of development. Fertilized eggs develop through a bipinnaria to a brachiolaria stage. Late brachiolaria larvae were present 38 days after fertilization in S. australis and 27 days after fertilization in C. calamaria. 3. As in the development of the feeding larvae, the process of metamorphosis is very similar in S. australis and C. calamaria. The time from attachment to the substratum by the late brachiolaria larvae to the completion of metamorphosis of the juvenile starfish is 6-7 days in S. australis and 6 days in C. calamaria. 4. Unfavorable culture conditions may have been the cause of abnormal larvae found in some cultures. 5. Larval development of S. australis and C. calamaria resembles closely that of other starfish species with indirect development, especially Asterias rubens. This may reflect the close taxonomic affinities of these three species. PMID- 29323958 TI - BIPHASIC PARTICULATE MEDIA FOR THE CULTURE OF FILTER-FEEDERS. AB - 1. Over 200 parthenogenetic generations of the freshwater Cladocera Moina macrocopa were obtained aseptically in three artificial media. 2. The media have two phases: a liquid phase supplying mineral salts, water soluble vitamins, nucleic acids, and a liver extract and a fine particulate phase made from coagulated proteins, starch and lipid factors. 3. The particulate phase supplies the bulk nutrients very efficiently; hence, this type of media may be useful for growing other filter-feeders. PMID- 29323959 TI - DEVELOPMENT OF THE DIMORPHIC CLAW CLOSER MUSCLES OF THE LOBSTER HOMARUS AMERICANUS. III. TRANSFORMATION TO DIMORPHIC MUSCLES IN JUVENILES. AB - 1. The two chelipeds of the adult lobster are asymmetrical with respect to their external morphology, neuromuscular physiology and utilization in behavior; however, they are not genetically fixed in terms of placement or handedness. 2. The differentiation of muscle fiber types was studied in the cutter and crusher claw closer muscles in the early juvenile stages of the lobster Homarus americanus. Muscle fibers were characterized on the basis of sarcomere length. 3. In contrast to the adult lobster, where the claw closer muscles are asymmetric, the closer muscles of the stage 4 lobster are nearly symmetric; both short and long sarcomere muscle fibers are present in each claw and both fiber types have an identical regional distribution within the closer muscle. 4. By stage 6 one of the muscles differentiates into a cutter muscle with over 60% short sarcomere fibers and a distinct regional distribution of short and long sarcomere fibers. The other claw closer muscle slowly loses its short sarcomere muscle fibers and is transformed into a crusher claw, usually by stage 13-15. 5. The change of the closer muscles from a symmetric to an asymmetric condition is correlated with the loss in ability for the claws to undergo a "reversal" rather than with the external appearance of the claw which becomes differentiated several molts later. PMID- 29323960 TI - THE ANNUAL REPRODUCTIVE CYCLE OF AN APODOUS HOLOTHURIAN, LEPTOSYNAPTA TENUIS: A BIMODAL BREEDING SEASON. AB - 1. Gonads of Leptosynapta tenuis were examined histologically, and gametogenesis in this apodid holothurian is described. 2. L. tenuis is a simultaneous hermaphrodite. Each animal produces and sheds spermatozoa and oocytes during the same breeding season, although sperm seem to be shed somewhat earlier than oocytes. 3. Testicular maturity indices and oocyte diameter measurements revealed a bimodal annual reproductive cycle in a North Carolina population sampled at monthly intervals over a fifteen-month period. Breeding occurred for about three months both preceding and following a month, or so, of breeding inactivity in July or August. 4. The mid-summer absence of mature gametes in the population coincided with the highest seawater temperatures, suggesting a temperature regulated gametogenic cycle. 5. The high oocyte growth rate leading to the second spawning season in the autumn is perhaps five times that of the winter rate. PMID- 29323961 TI - DEVELOPMENT OF AMPHIOPLUS ABDITUS (VERRILL) (ECHINODERMATA: OPHIUROIDEA). II. DESCRIPTION AND DISCUSSION OF OPHIUROID SKELETAL ONTOGENY AND HOMOLOGIES. AB - 1. Amphioplus abditus has a vestigial two-piece larval skeleton that has portions with different crystallographic orientations. The larval skeleton is resorbed and, unlike that of echinoids, it does not act as a center of formation of the plates of the adult. The major skeletal elements of the adult develop from single (usually triradiate) spicules, and there is a uniform crystallographic orientation within each plate. 2. The radial shields, adoral shields, genital plates and genital scales are ophiuroid specializations without homologues in the asteroids. Ophiuroids can regenerate radial shields but not the apical primary plates (the latter are probably atavistic structures). 3. The madreporite and oral plates, generally thought to migrate from the dorsal surface of the disc, originate in situ on the ventral surface of A. abditus. A dorsolateral plate, probably confused with the madreporite in past studies, is a precociously formed interradial-1. The formation of a "precocious interradial plate" could be a vestige of the primitive ophiuroid madreporite. In fact, the madreporites of asteroids, ancient ophiuroids, and recent ophuroids may not be homologous. 4. The origin of each of the oral papillae is described. Buccal scales, previously (and incorrectly) thought to develop into peristomial plates, form the second oral papillae in A. abditus. Consequently, the second oral papillae of amphiurids should not be considered "oral tentacle scales". The true tentacle scales are cryptic structures within the buccal cavity. 5. The oral papillae of the different amphiurid genera are probably homologous. Judging from differences in the oral frame, there are probably two major amphiurid groups composed of taxa which retain the buccal scales as oral papillae (Amphioplus and possibly Amphiura), and those like Axiognathus (and possibly Amphipholis and Amphiodia) which resorb the buccal scales. 6. A new system of homologues is suggested for the plates of the ophiuroid oral skeleton. The proximal oral plate is considered the ambulacral portion of the first modified arm-segment and buccal scales may be the first pair of adambulacrals. The distal oral plates (ambulacral), adoral shields (adambulacral), and the first ventral arm-plate (within the buccal slit) compose the second transformed arm-segment of the oral frame. This pattern of homology, together with the dissimilarities between ophiuroid and asteroid discs constitute important differences between the ophiuroids and asteroids. PMID- 29323962 TI - A GENERIC REVISION OF THE BRACKISH-WATER SERPULID FICOPOMATUS SOUTHERN 1921 (POLYCHAETA: SERPULINAE), INCLUDING MERCIERELLA FAUVEL 1923, SPHAEROPOMATUS TREADWELL 1934, MERCIERELLOPSIS RIOJA 1945 AND NEOPOMATUS PILLAI 1960. AB - The brackish water serpulid genera Mercierella, Mercierellopsis, Neopomatus and Sphaeropomatus are synonymized with Ficopomatus, including four species: F. enigmaticus, F. macrodon, F. miamiensis and F. uschakovi. The geographical distributions of the species are illustrated, and the confused identity of tropical specimens has been clarified, at least in part. The generic position of Ficopomatus capensis is discussed. Fossil records of Mercierella and related genera most probably do not belong to the genus Ficopomatus. PMID- 29323963 TI - LIFE CYCLE, DISTRIBUTION AND ABUNDANCE OF CARCINONEMERTES EPIALTI, A NEMERTEAN EGG PREDATOR OF THE SHORE CRAB, HEMIGRAPSUS OREGONENSIS, IN RELATION TO HOST SIZE, REPRODUCTION AND MOLT CYCLE. AB - 1. The geographic range of Carcinonemertes epialti has been greatly extended. The worms are found from Bahia San Quintin, Baja California, Mexico, to Page's Lagoon, Vancouver Island, British Columbia, Canada. 2. New host records for C. epialti include H. oregonensis, and H. nudus. It is rare on its type host Pugettia producta. Specimens of Carcinonemertes of uncertain affinities are also found on Cancer antennarius, C. anthonyi and C. productus. 3. Carcinonemertes epialti adults are egg predators on ovigerous hosts. Growth, demography and abundance are described in relation to the embryogenic stage of the host brood at Bodega Harbor, California. 4. Nonfeeding juveniles are ensheathed on individuals of both host sexes over 8.0 mm carapace width. 5. Transmission experiments show that contact transfer of juvenile nemerteans from males to other hosts may occur. 6. The percentage of infestation and mean density peak in autumn on H. oregonensis at Bodega Harbor. 7. Ovigerous female hosts are more frequently infested with C. epialti, particularly at small host sizes, than are male or nonovigerous female hosts at Bodega Harbor. However, average worm density on ovigerous females is low. 8. Mean density of C. epialti rises through late postmolt, declines during intermolt and rebuilds to a high level in late premolt H. oregonensisfrom Bodega Harbor. 9. Large crabs have a higher percentage of infestations and mean densities per infection than do small crabs. Nemerteans are more frequently found in the sternal-abdominal furrow and less frequently in the limb axillae on large crabs. 10. A model of C. epialti transmission and site occupancy is proposed, incorporating the influence of host size, sex, reproductive state, embryogenesis, molt cycle stage and molt cycle duration of H. oregonensis at Bodega Harbor. Site availability increases with host size. At higher densities the juvenile nemerteans increasingly occupy less preferred sites. Transferral of juvenile nemerteans occurs and is considered responsible for the high frequency of low infestation levels. Ovigerous females are more likely to be infested but with low density infestations. PMID- 29323964 TI - THE EFFECT OF pH ON OXYGEN CONSUMPTION AND ACTIVITY IN THE BATHYPELAGIC MYSID GNATHOPHAUSIA INGENS. AB - 1. Pleopod beat of G. ingens was unaffected by pH at pH 7.1 and pH 7.9 but was lower at pH 8.7 due to increased cleaning activity. 2. The relationship between oxygen consumption rate, and pleopod beat was found to be semi-logarithmic. 3. The relationship between oxygen consumption rate and activity was unaffected by pH in the range of pH 7.1 and pH 8.7. 4. The per cent O2 extraction of oxygen by G. ingens was not statistically different at pH 7.9 and pH 8.7, but was greater at pH 7.1. 5. The ability of G. ingens to regulate its oxygen consumption was unaffected by pH in the range studied. 6. Since the increase in per cent O2 extraction at pH 7.1 does not improve the ability of G. ingens to regulate its oxygen uptake, it appears that there is a loss in effectiveness elsewhere in its respiratory system at this pH. PMID- 29323965 TI - BIOMECHANICS OF WATER-PUMPING BY CHAETOPTERUS VARIOPEDATUS RENIER. SKELETOMUSCULATURE AND KINEMATICS. AB - 1. The skeletomusculature of the water-pumping segments of Chaetopterus variopedatus was examined in detail and the behavior of the segments during active water-propulsion was analyzed using cinemaphotographic techniques. 2. The musculature of the pumping segments consists largely of thin sheets of radial, transverse, and circular fibers, located immediately beneath the thin integument. Exceptions to this are the numerous isolated fibers running axially across the coelomic cavity of the parapodial rim and the major remotor muscles which originate in the neuropodial "sucker" of the adjacent posterior segment. 3. The motion of the pump segments is basically reciprocative, with the axial displacement during power and recovery strokes approximating a sine function. Centrifugal radial displacements (during the power stroke) effectively seal the lumen of the tube; centripital radial displacements (during the recovery stroke) allow water from the inlet side of the tube to by-pass the pump segment. 4. Comparison of the muscle anatomy with the displacements and shape changes which take place during water-propulsion permitted analysis of the muscle actions during the pump cycle. It is concluded that: (a) both axial and radial displacements during the power stroke are caused by a single set of muscles (remotors); (b) maintenance of the extended-disk configuration is consequent upon coelomic fluid being forced into the parapodial rim, with the axial muscle fibers acting as guy-wires to resist overexpansion; (c) most of the sheet-like muscle groups contract during the recovery stroke, thereby causing the segment to assume a nearly spherical configuration; and (d) two sets of muscles (promotors, oblique parapodial) are responsible for the axial displacement during recovery. 5. The water-pumping mechanism of Chaetopterus is compared to those of the majority of worms, which are based on persistaltic or undulatory movements. PMID- 29323966 TI - REAPPRAISAL OF PROCTODONE INVOLVEMENT IN THE HORMONAL REGULATION OF LARVAL DIAPAUSE. AB - 1. No evidence was found that the larval ileum of the corn boners, Diatraea grandiosella and Ostrinia nubilalis, secretes a developmental hormone, "proctodone." 2. An abdominal ligature which isolated the ileum of diapause larvae of both species caused high mortality but did not retard the pupation rate. 3. Extracts prepared from the ileal epithelium of mature nondiapause larvae of D. grandiosella were injected into diapause larvae and did not cause premature diapause termination. 4. Marked cytological changes occurred in the ileum at the onset of metamorphosis. At times the ileal epithelium of both species displayed auto and acridine orange-induced fluorescence, characteristic of lysosomes. 5. An electron microscopic examination of the autofluorescent ileal epithelium of D. grandiosella revealed organelles which had typical lysosomal features and stained positively for acid phosphatase activity. 6. The secretory activity of the ileum can be accounted for by lysosomal involvement in its metamorphic reorganization, and by its osmoregulatory functions. PMID- 29323967 TI - COLCHICINE, CYTOCHALASIN B, AND PIGMENT MOVEMENTS IN OVARIAN AND INTEGUMENTARY ERYTHROPHORES OF THE PRAWN, PALAEMONETES VULGARIS. AB - 1. The effects of colchicine and cytochalasin B on pigment migration in integumentary erythrophores of the prawn, Palaemonetes vulgaris, were determined. 2. Colchicine in a concentration of 25 mM inhibited responses to both the red pigment-concentrating and red pigment-dispersing hormones by the integumentary erythrophores. Colchicine at a concentration of 5 mM did not inhibit the responses of these chromatophores to these hormones. 3. Cytochalasin B (10 ug/ml) also inhibited both centrifugal and centripetal migrations of the pigment granules in these integumentary enythrophores. 4. Colchicine in a 25 mM solution almost completely inhibited the response to red pigment-concentrating hormone in ovarian erythrophores whereas 1 mM colchicine produced only a slight inhibition of this response. 5. The integumentary erythrophores of Palaemonetes vulgaris are the first chromatophores that have been observed in any animal where both pigment dispersion and aggregation are inhibited by either colchicine or cytochalasin B. 6. These results are discussed in relation to previously published data from this and other laboratories. PMID- 29323968 TI - PIGMENTATION IN THE ORANGE TUNICATE, ECTEINASCIDIA TURBINATA. AB - Some chemical properties of the orange pigment from eggs and embryos and the mantle tissue of adult Ecteinascidia turbinata, as well as ultrastructural characteristics of pigment masses in the mantle, have been examined. The diffuse egg and embryo pigment has solubility and absorbence characteristics of carotenoids, which are solubilized within yolk platelets. The granular mantle pigment, however, is not carotenoid. It is soluble only in organic-aqueous systems, stable to boiling and gross changes in pH, and absorbs strongly in the UV region with a single major peak at 360 nm. Mantle pigment is found in pigment bodies which ultrastructurally are composed of apparently straight and continuous tubular subunits, approximately 500 to 600 A in diameter, and oriented parallel to the long axis of the body. The pigment bodies are not localized in obvious cells but found within large areas of fibrillar material that are bound by cytoplasmic membranes and occasionally contain an apparently degenerate nucleus. It may be that mantle pigment is derived from pigment cells of the blood which lose their typical cellular appearance as they become permanent features of the mantle tissue. PMID- 29323969 TI - LARVAL DEVELOPMENT AND HABITS OF LAEONEREIS CULVERI (WEBSTER) (POLYCHAETA: NEREIDAE). AB - The nereid polychaete Laeonereis culveri (Webster) reproduces in the atokal condition in the Mystic River Estuary, Connecticut. Females spawn demersal eggs, 135-162 u in diameter, that do not extrude a jelly layer upon fertilization and that give rise to unciliated embryos. Embryogenesis leads directly to a 3-setigen larva in four days (at 22 +/- 3 degrees C; 300/00). The trochophore is suppressed due to the retarded development of locomotory cilia which do not appear until the 3-setiger larva has formed. Although provided with ciliary tracts and capable of swimming, L. culveri larvae are normally benthic in habit. They reside in burrows within the upper 2 cm of fine, flocculent sediments where they feed chiefly on benthic diatoms until developing past the 5-setiger stage after which they become non-selective deposit feeders. The primary function of the larval ciliature is to pass water currents through the burrow. In the laboratory, 3-to 5-setiger larvae alternately swim and crawl in the absence of sediments on in the presence of coarse sediments (particle diameters > 250 u); but they readily burrow into and remain within fine sediments (particle diameters < 250 u) even if the latter are relatively free of organic matter. Swim-crawl behavior also appears to be elicited under conditions of unfavorable water quality. When the sixth setiger forms, the larva is no longer capable of swimming by means of its cilia. Development beyond the 3-setger stage approximates that of other species except that L. culveri larvae are apparently unique in ultimately developing eight nototrochs (one per each of the first eight trunk segments). The nototrochs are retained and function in burrow ventilation until the 16-to 18 setiger stages when body undulations commence creating ventilation currents. Larval development is completed with addition of the eighth trunk segment. At this stage, the tentacular segment (first trunk segment) is incorporated into the peristomium and the first pair of parapodia are modified to form the posterodorsal tentacular cirri. Sigmoid growth curves resulted when either length or segment-formation was used as an indicator of growth among laboratory-reared worms. Sexually mature, laboratory-reared worms were only about one-half the length of sexually mature worms in a natural population. Thirty-two individuals (17 females, 15 males) of an F1 generation were reared to maturity and spawned after 168-198 days of development. F2 generation larvae were identical in morphology to those of the F1 generation. PMID- 29323970 TI - THE MARINE BIOLOGICAL LABORATORY. PMID- 29323971 TI - AN ANALYSIS OF SHELL OCCUPATION BY TWO SYMPATRIC SPECIES OF HERMIT CRAB. I. ECOLOGICAL FACTORS. AB - Three series of experiments were conducted on Pagurus longicarpus and Clibanarius vittatus at Beaufort, North Carolina. The first series showed that the preferred species of shell by either species of crab is determined by the size of the crab and that certain species of shells are not available in preferred numbers for the hermit crab species. This affects C. vittatus more than P. longicarpus. The second series showed that shell fighting is not an important factor in determining which species occupies which kind of shell while the third series showed that a substrate preference for mud by P. longicarpus may limit it from obtaining a preferred species of shell that occurs naturally on sand. PMID- 29323972 TI - ELECTRICAL ACTIVITY ASSOCIATED WITH LUMINESCENCE AND OTHER COLONIAL BEHAVIOR IN THE PENNATULID RENILLA KOLLIKERI. PMID- 29323973 TI - EFFECTS OF HYDROGEN ION CONCENTRATION ON THE MORPHOLOGY OF HEMOCYTES OF THE MOLECRAB EMERITA ASIATICA. AB - Variations in the pH of the surrounding medium of hemocytes in vitro influence the morphology of granular hemocytes, the most predominant cell type in the hemocyte population of Emerita asiatica. Qualitative studies reveal that in the acidic range these cells become spindle-shaped and pseudopodial. Between pH 7.0 and 9.0 of the Tris-HCl buffer system, the hemocytes show a sequential change. The morphological features of the stages are facsimiles of the major hemocyte types occurring in the hemolymph of Emerita asiatica. The granular hemocytes become plasmatocyte- and cystocyte-like cells. Differential counts of hemocytes and pH-induced variations of granular hemocytes reveal that the rate of change decreases with decreasing pH of the surrounding medium. The aggregation of hemocytes increases with increase in pH. The pH-dependent variations of hemocytes indicate that for a truly objective definition of hemocyte morphology and for a strict classification into distinctly separate cell types, experimental analyses of hemocyte morphology are required. PMID- 29323974 TI - BEHAVIOR AND ELECTRICAL ACTIVITY IN THE HYDROZOAN PROBOSCIDACTYLA FLAVICIRRATA (BRANDT). II. THE MEDUSA. AB - 1. Feeding in the medusa of Proboscidactyla flavicirrata is accompanied by local, small amplitude impulses recorded from the bases of perradial tentacles. 2. Medusae, both attached and free, swim spontaneously with electrodes in place thus giving data on the temporal patterns of contractions of the swimming muscle. 3. Swimming pulses (SP's) can be recorded from the circular muscle of the subumbrella. Each SP is preceded by a pre-swim pulse (PSP) which is a neuronal pulse conducted in the marginal nerve(s). 4. Marginal pulses (MP's) are neuronal pulses conducted in the marginal nerve(s) which can trigger synchronous tentacle contraction. 5. MP's originate from pacemaker sites located in tentacle bulbs. When new tentacles first appear the firing of MP's from these new sites is not synchronized with established pacemakers: eventually they become linked to the original pacemaker system. 6. Synchrony between MP pacemakers is lost under Mg++ anaesthesia. 7. Tentacle contraction pulses (TCP's) are the electrical accompaniment to local tentacle contraction. 8. Crumpling pulses (CrP's) are epithelial pulses causing the protective behavior known as crumpling. 9. CrP's show a decrease in conduction velocity and amplitude as a result of repetitive stimulation. PMID- 29323975 TI - REPRODUCTION AND LARVAL DEVELOPMENT OF PSEUDOPOLYDORA PAUCIBRANCHIATA (OKUDA) AND PSEUDOPOLYDORA KEMPI (SOUTHERN) (POLYCHAETA: SPIONIDAE). AB - 1. The larval development of Pseudopolydora paucibranchiata (Okuda) and P. kempi (Southern) is described. Both species occur in tidal flats of California bays and estuaries. 2. Adult females of P. paucibranchiata deposit eggs in capsules which are attached to the inner lining of their tubes. All eggs are fertilized. Larvae develop in the capsules until they have 3 setigerous segments at which time they enter the plankton. After development of 13-17 setigers they begin to settle out of the plankton and assume a benthic life. 3. Eggs of P. kempi are also deposited in capsules, but in this case only a small percentage are fertilized. The unfertilized eggs fragment into separate yolk granules and are eaten by the developing embryos. After all yolk is devoured the larvae continue their development sustained by this stored food reserve. They remain in the capsule until they have about 15 setigers. They remain in the plankton only a short time before settling and taking up a benthic life. PMID- 29323976 TI - THE ONTOGENY AND SPECTRAL SENSITIVITY OF POLAROTAXIS IN LARVAE OF THE CRAB RHITHROPANOPEUS HARRISI (GOULD). AB - 1. To determine the ontogeny plus the intensity and spectral characteristics of polarotaxis in larvae of the crab, Rhithropanopeus harrisi, swimming paths in relation to the e-vector direction of linearly polarized light were monitored and recorded with a closed circuit video system. 2. All four zoeal stages were examined. Only stages II and III responded with significant directional swimming (stage II, perpendicular to the e-vector, stage III, parallel to the e-vector; Figs. 3 and 4). Stages I and IV appeared indifferent to the polarization plane (Figs. 2 and 5). Swimming under unpolarized light was consistently random (Table I). 3. Polarotaxis disappeared following dark adaptation of stage II larvae (Fig. 6). 4. The lower intensity threshold at 499-nm light for polarotaxis was found to be between 10-4 and 10-3 W/m2, while the upper threshold is in the range 10-1 to 2 x 10-1 W/m2 (Figs. 3 and 4). 5. Examination of selected wavelengths from 420 620 nm yielded greatest responsiveness at 499 nm (Fig. 7). A rise evident at 420 nm suggests a secondary maximum in the violet. 6. Stage II larvae showed significant positive phototaxis under depolarized light when a collar of alternating black and white quadrants surrounded the experimental vessel. With the e-vector of polarized light aligned parallel to the white sectors, phototaxis was reduced by polarotactic swimming into the black sectors (approximately perpendicular to the e-vector). 7. A comparison with phototaxis (Forward and Costlow, 1974) provides two items of evidence that polarotaxis and phototaxis are indeed separate responses. First, phototaxis is essentially unchanged during larval development, while polarotaxis appears only at stages II and III. Secondly, the responses have different optimum intensities. PMID- 29323977 TI - The personal tutor as a role model for students: humanising nursing care. AB - This article explores how nurse academics in one British university uphold and role model the humanising framework developed by Todres et al (2009) . It gives a brief overview of nurse education in the UK. Next it outlines the nature of the personal tutor role. It then offers an overview of the humanising framework, its background and embodiment in the undergraduate nursing curriculum. It explores how nurse academics role model humanisation and how this influences and impacts on students' ability to live and apply the humanising dimensions of nursing to enhance patients' lived experience of care. It concludes with examples of how this encourages positive meaningful relationships between students and tutors. PMID- 29323978 TI - Nurse-led epistaxis management within the emergency department. AB - BACKGROUND: the incidence of epistaxis has increased secondary to increased life expectancy and morbidities. This study sought to assess the knowledge, practice and opinion relating to adequacy of training of advanced nurse practitioners (ANPs) and staff nurses (SNs) in the emergency department. METHODS: a national survey was distributed over an 8-week period; this included a 3-point scoring system based on the National Institute for Health and Care Excellence Clinical Knowledge Summaries guidance on epistaxis management to assess overall performance. RESULTS: analysis included 109 ANPs and 101 SNs; 12% of ANPs achieved the maximum score, 40% scored 2, 25% scored 1, and 23% scored 0, while 14% of SNs achieved the maximum score, 24% scored 2, 29% scored 1, and 32% scored 0. Overall 88% of respondents advocated further training. CONCLUSION: significant deficits in knowledge regarding epistaxis management were highlighted. Further training could help to empower patients in basic first aid measures, subsequently reducing admissions rates. PMID- 29323979 TI - Outcomes of very high C-reactive protein levels in paediatric practice. AB - Siba Prosad Paul, Alifa De Aguiar, Joanna Barnden, Anna Cannon and Megan Eaton discuss the implications of high levels of the inflammatory marker, drawing on local audit. PMID- 29323980 TI - A commitment to making things better. AB - We hope that all nurses are committed to what they do, but what does that really mean? Clare Price-Dowd, Senior Programme Lead, NHS Leadership Academy, explores why commitment is fundamental for a nurse. PMID- 29323981 TI - A good mentor will never make you feel like a burden. AB - Ruth Stone, at the time of writing a final-year student at the University of East Anglia, reflects on the importance of an approachable, encouraging and sometimes challenging mentor for students on placement. PMID- 29323982 TI - Preparing for future incapacity: part 2. AB - In the second of two articles on the benefits of preparing for future incapacity Richard Griffith discusses the formal powers of the Mental Capacity Act 2005 that promote autonomy and give effect to a person's wishes and feelings. PMID- 29323983 TI - Safeguarding vulnerable adults. AB - Sam Foster, Chief Nurse, Oxford University Hospitals, focuses on the use of deprivation of liberty safeguards and the Mental Capacity Act and the importance of providing clarity for staff. PMID- 29323984 TI - Nurses and global health: 'at the table' or 'on the menu'? AB - Janet Scammell, Associate Professor (Nursing), Bournemouth University, looks at the role of the nursing workforce in shaping wider global health care, and the part nurse educators play in promoting international involvement. PMID- 29323986 TI - Improving flu campaigns: protecting healthcare workers and patients. PMID- 29323985 TI - Promoting improvements in mental health for children and young people. AB - Emeritus Professor Alan Glasper, University of Southampton, discusses a report from the Care Quality Commission into the current state of services for children and young people with mental health problems. PMID- 29323987 TI - Care bundles in the management of a COPD exacerbation. AB - Chronic obstructive pulmonary disease (COPD), the umbrella term used to describe chronic lung diseases that cause limitations in lung airflow, is predicted to be the third leading cause of death by 2030. COPD is said to affect 3 million people in the UK, resulting in approximately 30 000 deaths each year. Related healthcare costs continue to escalate, not least because of increasing readmission rates associated with COPD emergencies. The use of care bundles to streamline care is becoming more popular in an attempt to tackle this issue. An integrative literature review was carried out to examine the effectiveness of the use of care bundles. The findings highlighted inconsistencies in the components of bundles, leading to inherent difficulties in assessing which specific component of the bundles led to positive outcomes. The results of this attempt to establish the effectiveness of care bundles in reducing readmission rates and quality of care were inconclusive. The authors recommend further research to investigate the individual components in the bundles and to introduce internationally agreed care bundles for the management of COPD. PMID- 29323988 TI - The role of the Health Service Safety Investigations Body. AB - John Tingle, Associate Professor (Teaching and Scholarship), Nottingham Trent University, discusses the draft Health Service Safety Investigations Bill, which will create a new body with far-reaching legal powers. PMID- 29323989 TI - Rapid response: a multiprofessional approach to hospital at home. AB - The provision of 'hospital at home' is not new to the 21st century but pressure from the reduction in the number of hospital beds, population growth, an ageing population and subsequent extended time living with long-term conditions means such services are increasingly necessary. However, research by the authors found services that already exist do not operate 24 hours a day or provide a single multiprofessional approach. Gloucestershire's rapid response (RR) service provides specialist, coordinated, comprehensive and supportive assessment and treatment 24 hours a day in the patient's own home. Data were collected over a 5 month period detailing the number of patients admitted to the service and its impact on hospital admission avoidance and patient outcome. The cost savings and reduction in length of hospital stay is considerable (to almost a quarter of the cost and number of bed days of an acute hospital admission). The position of the hospital as the main provider of urgent/acute care is shifting. The RR service demonstrates its position as a provider of an innovative service that breaks down the boundaries between acute, primary and social care. PMID- 29323990 TI - Ventilator-associated pneumonia and suction: a review of the literature. AB - AIM: to identify the most effective suctioning technique for the prevention of ventilator-associated pneumonia. BACKGROUND: ventilator-associated pneumonia is an important hospital-acquired infection associated with increased mortality and morbidity. METHOD: a rapid review included an electronic database search of articles published between January 2009 and March 2016. The quality of the seven included studies was appraised and data were subjected to tabular and narrative syntheses. RESULTS: closed suction systems have no clear advantage over open suction, but may better prevent late-onset ventilator-associated pneumonia. Subglottic secretion drainage reduces ventilator-associated pneumonia incidence. CONCLUSION: open versus closed suction combined with subglottic secretion drainage requires ongoing research. Alongside this, policy guidance, education, behavioural and managerial strategies must be implemented. PMID- 29323991 TI - Accuracy of non-invasive blood pressure measurements in obese patients. AB - This article describes an evidence-based literature review, comparing upper arm and forearm blood pressure measurements using non-invasive devices on obese patients. The focus on blood pressure monitoring was in response to regularly witnessing inappropriately applied blood pressure cuffs on obese patient's upper arms in practice. An inaccurately obtained blood pressure measurement can result in the misdiagnosis and treatment of hypertension. As the prevalence of obesity grows worldwide, healthcare settings need to ensure they have the necessary equipment and trained staff to accurately measure obese patients' blood pressure. The aim of this review was to identify whether a forearm measurement provided a suitable alternative to upper arm measurements. The article discusses the development and execution of a search strategy, as well as the critical appraisal of a selected article. The results of the review demonstrated that forearm blood pressure measurements in obese patients do not replace upper arm blood pressure measurements taken with an appropriate cuff. It is recommended that further research is undertaken in order to identify suitable alternatives for obtaining an accurate non-invasive blood pressure measurement in obese patients. PMID- 29323993 TI - Why you should be aware of CPE infection and transmission. PMID- 29323992 TI - Reducing catheter-associated urinary tract infections: standardising practice. AB - Inspired by innovations in catheter practice from the USA, in 2014 Nottingham University Hospitals NHS Trust introduced catheterisation standardisation across the Trust's two acute sites. Standardisation was achieved by the introduction of an all-in one catheterisation tray (Bard(r) Tray), which included all the necessary equipment required for catheterisation, coupled with a training programme. The introduction of the tray was followed by a clinically significant 80% reduction in the CAUTI rate from 2014 to 2016. This reduction in CAUTI rate provided the Trust with a considerable reduction on annual expenditure (nearly L160 000 less in 2016 compared with 2014). The introduction of the tray has additionally improved practice with nursing staff now less likely to forget the necessary equipment before commencing catheterisation as all the components are provided in one place. PMID- 29323994 TI - You never stop learning. PMID- 29323995 TI - Short but was it sweet? PMID- 29323996 TI - ANTENNULAR CHEMOSENSITIVITY IN THE SPINY LOBSTER, PANULIRUS ARGUS: COMPARATIVE TESTS OF HIGH AND LOW MOLECULAR WEIGHT STIMULANTS. AB - Antennular chemoreceptors in the spiny lobster, P. argus, were surveyed electrophysiologically for responsiveness to natural stimuli of different molecular weights to gain further insight into the stimulatory role of macromolecules. Extracts and body fluids from eight potential food organisms were prepared and tested both before and after fractionation by ultrafiltration. Data presented verify chemosensitivity of lateral antennular filaments and show that for all extract types. the components of low molecular weight (< ca. 10,000) were significantly more stimulatory than the components of higher molecular weight; and stimulus values of low molecular weight fractions did not differ significantly from those of the unfractionated extracts. PMID- 29323997 TI - OXYGEN UPTAKE OF THE SOLITARY TUNICATE STYELA PLICATA. AB - 1. The oxygen consumption of the solitary tunicate Styela plicata was measured in order to estimate routine metabolic maintenance costs of the animal throughout the year. 2. The acclimatized oxygen consumption of Styela is proportional to the 0.7 power of body weight; this value is independent of the acclimatization temperature. 3. Q10 declines with increasing temperature, averaging 3 between 10 degrees and 20 degrees C, and 1.7 between 20 degrees and 30 degrees C. 4. Disproportionately large metabolic costs of routine activity cannot be invoked to explain the apparent lack of reproduction by Styela plicata during the warmest summer months. 5. The northern limit of Styela plicata is in the vicinity of Cape Hatteras, North Carolina. Winter mortality of adults is likely to limit the northern extension of Styela beyond Hatteras, and dislodgement from substrate during cold (growth inhibited) periods is suggested as one cause of winter mortality. 6. At temperatures greater than 10 degrees C, oxygen uptake of Styela is independent of oxygen tension at normoxic conditions. An analysis of the critical oxygen tension as a function of temperature and body size suggests that ciliary activity may decrease the oxygen diffusion distance in the branchial sac at increased temperatures, and that the surface area per unit volume oxygen consumed may increase with increasing body size because of the demands of filter feeding on the branchial sac. PMID- 29323998 TI - SEASONAL VARIATIONS OF SODIUM AND POTASSIUM CONCENTRATIONS IN DIFFERENT PARTS OF THE FROG MYOCARDIUM. AB - Sodium and potassium concentrations in different parts of the frog heart (sinus venosus, atrium and ventricle) were investigated at various seasons of the year. The sodium concentration showed a marked periodicity in all three parts of the heart: minimum in winter, maximum in summer. Potassium concentration showed no seasonal variations, except for reduction in potassium concentration of the ventricle in the second half of the year. The experimental results for sodium can be fitted by a sine curve, the differences between minimum (in winter) and maximum (in summer) representing 46.4% (for sinus venosus), 30.4% (atrium) and 34.0% (ventricle) of the spring-autumn values. Variation in the electrolyte concentration could be explained by changes in salt. and water metabolism induced by fluctuations in the temperature on one hand, and by the removal of the animals from their natural environment on the other. PMID- 29323999 TI - EFFECTS OF TEMPERATURE ON THE NUTRITIONAL REQUIREMENTS OF ARTEMIA SALINA (L.). AB - 1. The growth rate of Artemia in a uniform basic medium is faster at 30 degrees C than at 25 degrees C. 2. Temperature and salinity have opposite effects on the quantitative requirement for AMP. 3. At 30 degrees C maximal growth is achieved with more AMP, more albumin, and less starch than at 25 degrees C. 4. The effects of temperature are mediated by the ratio between energetic nutrients and AMP. PMID- 29324000 TI - COMPARATIVE STUDIES ON THE FUNCTION OF GILLS IN SUSPENSION FEEDING BIVALVES, WITH SPECIAL REFERENCE TO EFFECTS OF SEROTONIN. AB - 1. Observations were made on muscular and ciliary activity and particle transport and retention in intact gills and gill fragments of the suspension-feeding, epifaunal bivalves Anomia achaeus Gray, Juxtamusium maldivense (E. A. Smith), Pteria macroptera (Lamarck), Pycnodonte hyotis (L.), P. numisma (Lamarck), Crassostrea cuccullata (von Born), Crassostrea lugubris (Sowerby), Tridacna maxima (Roding), and T. squamosa Lamarck. 2. Gill contractions were especially violent in Pteria and both species of Pycnodonte. 5-HT in concentrations of 10-4 10-5 M caused relaxation of contracted gills, and reduced or abolished the response to mechanical stimulation, except in Tridacna. 3. In Juxtamusium, the concertina-like movements of the gill plicae could be correlated with the functional state of the water-transporting lateral cilia. When all lateral cilia were active, and the plicae inflated, movements of the plicae were discontinued. At periods of arrest of the lateral cilia the plicae collapsed and resumed concertina-like movements. 5-HT had no clear effect on the concertina-like movements of the gill plicae, except in Juxtamusium in which addition of 5-HT to the ambient medium stimulated the movements. 4. Exposed gills or gill fragments of all the species examined continued to transport water, but only inefficiently retained particles, 10-20 um Tetraselmis cells, added to the water. 5-HT enhanced the rate of water transport in most species by stimulating the activity of the lateral cilia, but reduced the ability of the gill to retain Tetraselmis cells. The cilio-excitatory nerve transmitter 5-HT of bivalve gill filaments thus did not restore normal feeding activity of the gill. 5. Latero-frontal cirri could not be distinguished on the gill filaments of Anomia, Juxtamusium, and Pteria. In Crassostrea lugubris they were small (ca. 13 um, in length) and inconspicuous. They were about 15 um long in the two species of Tridacna, and about 17 um long in Crassostrea cuccullata and in the two species of Pycnodonte, spanning about half of the interfilamentar space in relaxed plicae. The latero-frontal cirri varied greatly in activity and in orientation of inactive cirri. Also the effects of 5-HT were variable, but the drug tended to arrest the cirri in an erect position. 6. 5-HT reduced the creeping rate of gill fragments of Pycnodonte numisma. 7. The gill fragments secreted mucus at low rates even in dense suspensions of Tetraselmis cells. The majority of Tetraselmis cells that were retained and transported by the gill fragments remained free of mucus, to be redispersed in the medium when they arrived at cut ends of the particle transporting ciliary tracts along the gill bases or the ventral margins of the demibranchs. 8. It is concluded that the feeding state of the bivalve gill, which is characterized by high rates of water transport through highly retentive gills, is restricted to undisturbed, intact animals. The mechanisms of feeding, therefore, cannot be finally understood from studies on exposed gills or gill fragments. The physiological significance of the nonretentive gill of disturbed animals and gill preparations is not clear. PMID- 29324002 TI - ABSTRACTS OF PAPERS PRESENTED AT THE MARINE BIOLOGICAL LABORATORY. PMID- 29324001 TI - FLOW AND FEEDING IN FAN-SHAPED COLONIES OF THE GORGONIAN CORAL, LEPTOGORGIA. AB - Field studies demonstrate that the gorgonian coral Leptogorgia virgulata assumes a fan-shaped morphology oriented at right angles to prevailing tidal currents. Laboratory studies using a recirculating water tunnel and Artemia salina nauplii as food show that fan-shaped colonies oriented perpendicular to water currents capture more Artemia per unit time than the same colonies oriented parallel to water currents. Several feeding strategies which may operate at various current speeds are suggested. Possible mechanisms controlling feeding response and the selective advantage of colony morphology and orientation as related to feeding and resistance to hydrodynamic forces are discussed. PMID- 29324003 TI - CYTOTOXIC EFFECTS OF THE HERBICIDE 3-AMINO-1,2,4-TRIAZOLE ON DAPHNIA PULEX (CRUSTACEA:CLADOCERA). AB - Zero to 24 hour old specimens of Daphnia were exposed to 10 ppm 3-amino-1,2,4 triazole at 24 degrees C until immobilized. The most consistent alteration in cell structure was expressed by the mitochondria especially those of muscle fibers. Not all muscle cells within a single animal nor all mitochondria within a single cell were affected equally. The most common alteration observed was folding of the outer membrane. This was accompanied by organelle swelling and a reduction in electron density of the ground matrix and number of cristae. In addition other cytotoxic effects were observed. These included general tissue swelling, disarrangement of myofilaments and dissociation of membranes. Mobile 0 24 hr old daphnids which were exposed to the herbicide for up to 15 hr showed no cell or organelle damage regardless of length of exposure. Data from acute static experiments suggest that the time of immobility is closely related to molt for 0 24 hr juveniles. PMID- 29324004 TI - SCANNING ELECTRON MICROSCOPY OF THE REGENERATED SHELL OF THE MARINE ARCHAEOGASTROPOD, TEGULA. AB - A window was cut in the first body whorl of the marine snail, Tegula, to induce shell regeneration. At various intervals after the shell window was cut, the window with the regenerated material and the shell surrounding it were prepared for scanning electron microscopy. Initial crystal deposition occurred in association with an organic matrix and appeared as small, spindle-shaped crystals formed by the aggregation of needle-like subunits. The spindles were frequently aggregated into stellate clusters that coalesced to form a sheet of mineralized tissue. After about two months of regeneration, dumbbell-shaped crystal aggregates and spherulites were apparent on the surface of the regenerated shell. The regenerated shell assumed a normal structure after at least four months of regeneration. Crystal deposition also occurred on the normal shell bordering the shell window. The crystals assumed several forms, and their orientation appeared to be determined by the microtopography of the underlying shell. PMID- 29324005 TI - MORPHOLOGY AND GENETICS OF REJECTION REACTIONS BETWEEN OOZOOIDS FROM THE TUNICATE BOTRYLLUS SCHLOSSERI. AB - Botryllus rejection reactions were followed in pairs of oozooids placed together immediately after initiation of metamorphosis. Within twelve hours, both compatible and incompatible oozooid pairs underwent tunic fusion and initiation of ampullar tip-to-side contact. Vascular fusion followed within two days between compatible pairs, while the fusion sequence was interrupted in the incompatible pairs by a rapid cytotoxic rejection response. Events occurring within and outside the ampullae in rejections were effector responses whose consequences were separation of the ampullae and isolation of the involved tissues from the bodies of the oozooids. Genetics experiments suggested that the four distinct types of rejection reflect a hierarchy of histoincompatibility in this system. PMID- 29324006 TI - COMPETITIVE DISPLACEMENT OF NATIVE MUD SNAILS BY INTRODUCED PERIWINKLES IN THE NEW ENGLAND INTERTIDAL ZONE. AB - During the nineteenth century the mud snail Ilyanassa obsoleta was abundant on sand and mud flats, wood works, sea walls, salt marshes, eel grass beds, and cobble beaches in New England. With the exception of sand and mud flats, these habitats are now largely occupied by the introduced periwinkle, Littorina littorea. To determine whether Littorina competitively displaces Ilyanassa, an experimental study was conducted at a site in Barnstable Harbor, Massachusetts where the observed distributions overlapped by 3% by Morisita's index. Mark recapture studies suggested that the distribution of Littorina was limited by an abiotic factor, currents, through which this species realized its fundamental niche. In contrast, density manipulations demonstrated that Ilyanassa emigrated from areas where Littorina exceeded densities of 2 to 5 per 0.25 m2. Littorina limited the upper and lower distribution of Ilyanassa and affected its microhabitat distribution in the mid intertidal zone. Habitat displacement was 70% for Ilyanassa, calculated as the difference between Ilyanassa's observed distribution and its distribution during littorinid removal experiments. The two species display reciprocal niche overlap with each possessing an exclusive region from which the other is physically restricted. The results suggest that the historical change in the distribution of Ilyanassa was due to competitive exclusion by introduced Littorina. PMID- 29324007 TI - FEEDING STRUCTURES, BEHAVIOR, AND MICROHABITAT OF ECHINOCYAMUS PUSILLUS (ECHINOIDEA: CLYPEASTEROIDA). AB - In the Firth of Lorne, Scotland, Echinocyamus pusillus was found most abundantly in highly variable, poorly sorted substrates at depths of 10-20 m. It was common in areas exposed to extensive wave and tidal current activity, but absent in fine sediments in sheltered areas. In size, feeding mechanism, and behavior, the species is highly adapted for nestling in the interstices between relatively large pebbles. The feeding mechanism is atypical for clypeasteroids: substrate particles with attached organisms are selected and transported by the suckered podia. At the mouth, particles are held in place and slowly rotated by the free margin of the peristomial membrane, while the teeth strip away diatoms and organic debris. The peristomial membrane and ciliation of spines and podia are shown in scanning electron micrographs of critical point dried material. The histology of these structures is described with special reference to mucus secretion. High resolution SEM micrographs show mucus secreting pores among the epithelial microvilli of suckered and buccal podia but not in the epithelium of miliary spines. The suggestion that E. pusillus might represent a sand dollar ancestor is discussed. The evidence presented supports the view that it is specialized rather than primitive. PMID- 29324008 TI - THE BIOLOGY OF FISSURELLA MAXIMA SOWERBY (MOLLUSCA: ARCHAEOGASTROPODA) IN NORTHERN CHILE. 2. NOTES ON ITS REPRODUCTION. AB - For 14 months, monthly samples were collected to study reproduction in Fissurella maxima at Huayquique. Results indicate that F. maxima is a dioecious species; no sign of hermaphroditism has been observed. The sex ratio is 1:1 in the different size classes analyzed. Ovaries are green and testis are median brown to yellowish white. Eggs in the ovary measure from 120-280 u without envelopes. The gonads are parasitized by adult digenea trematods of the genus Proctoeces. Some effects of parasitism are discussed. Variations in mean monthly gonadosomatic index suggest that there is a main spawning period in late November-December (late spring-early summer) and a secondary period in July-August (winter). Fluctuations in mean gonad index show a close correlation with sea water temperature variations. The youngest mature specimens detected were about 5 cm in shell length (over two years old), but the majority of mature animals were over 6.5 cm. PMID- 29324009 TI - THE ROLES OF HEMOCYTES IN TANNING DURING THE MOLTING CYCLE: A HISTOCHEMICAL STUDY OF THE FIDDLER CRAB, UCA PUGILATOR. AB - Histochemical data support the previous biochemical finding that the blood is a major site for the production of proteinaceous and diphenolic substances for tanning of the cuticle in the fiddler crab, Uca pugilator. Five types of hemocytes are described. Specifically in tanning, the hyaline cells (cystocytes) appear responsible for the production of diphenolic tanning agents whereas the granulocytes synthesize the proteins involved. Other types of hemocyte may be transitional forms involved in clotting (intermediate cells). Various histochemical reactions for each type of hemocyte and the cuticle are recorded throughout the molting cycle, and appear cyclic. The data suggest there is hormonal control of the cyclic events during the tanning process. PMID- 29324010 TI - INDUCED DEVELOPMENT OF SWEEPER TENTACLES ON THE REEF CORAL AGARICIA AGARICITES: A RESPONSE TO DIRECT COMPETITION. AB - The scleractinian coral Agaricia agaricites often has elongate sweeper tentacles on colony margins close to other sessile animals. Sweeper tentacles can damage tissues of opponents and are probably used in direct competition for substrate space. Furthermore, contact with tissues or mesenterial filaments of other corals, or with tissues of the gorgonian Erythropodium caribaeorum or the zooanthid Palythoa caribbea can stimulate the development of sweeper tentacles by A. agaricites. Depending on both the particular competitor species involved and the distance separating it from A. agaricites, events leading to the development of sweeper tentacles may or may not include tissue loss by A. agaricites. On average the development of sweeper tentacles takes thirty days, and is localized exclusively on tissues close to the region in contact with competitors. Sweeper tentacles do not develop in response to artificial stimuli simulating tactile contact or damage such as occur in natural interactions with other corals. Thus, recognition of competitor tissues appears to be a necessary stimulus for sweeper formation. PMID- 29324011 TI - REGENERATION OF INJURIES AMONG JAMAICAN GORGONIANS: THE ROLES OF COLONY PHYSIOLOGY AND ENVIRONMENT. AB - The consequences of injury to reef dwelling colonial animals are determined partly by rates of regeneration of lost tissues. These experiments examined two potential influences on regeneration rates of Jamaican gorgonians: 1) intrinsic physiological and energetic differences among co-occurring, conspecific colonies differing in size, reproductive phase, or injury location; and 2) differential responses among three plexaurid species to changing environmental variables across their depth range. In Plexaura homomalla, regeneration rate varied with the location of injury within colonies, but was unexpectedly independent of either colony size or reproductive phase. In addition, colonies of P. homomalla, Eunicea mammosa, and Plexaurella dichotoma differed in relative ability to regenerate equivalent injuries in different reef zones across their depth range. "There is one fact in the life-history of corals which the study of processes of repair clearly brings out, and it is this, that all the methods of regeneration are more for the life-saving of the colony than of the individual." Wood-Jones, 1912. PMID- 29324012 TI - ANALYSIS OF HEMOLYMPH OXYGEN LEVELS AND ACID-BASE STATUS DURING EMERSION 'IN SITU' IN THE RED ROCK CRAB, CANCER PRODUCTUS. AB - Hemolymph samples were taken from small (< 100 g) individuals of Cancer productus following ca. 3 h air exposure (emersion) on the beach, 'in situ', at Friday Harbor, Washington. Compared with crabs of similar size in sea water in the laboratory, these crabs emersed 'in situ' had lower Pao2, and Pvo2, but no significant change in pH and a small, not significant, internal hypercapnia. Total CO2 (Cco2) content of the hemolymph was elevated by 70% (15.2 versus 9.0 mM), possibly as compensation for input of acid into the hemolymph. These responses are qualitatively similar to those resulting from similar treatment in the laboratory, but differ in the reduced magnitude of the internal hypercapnia and acidosis of the hemolymph. It is suggested that the particular conditions of emersion 'in situ' permit some gas exchange with interstitial sea water. Interstitial sea water was found to be hypoxic (Po2 = 20-40 torr), which would limit oxygen supply yet permit CO2 excretion to continue, in agreement with the data. PMID- 29324013 TI - MARINE BIOLUMINESCENCE SPECTRA MEASURED WITH AN OPTICAL MULTICHANNEL DETECTION SYSTEM. AB - The emission spectra of 70 bioluminescent marine species were measured with a computer controlled optical multichannel analyzer (OMA). A 350 nm spectral window is simultaneously measured using a linear array of 700 silicon photodiodes, coupled by fiber optics to a microchannel plate image intensifier on which a polychromator generated spectrum is focused. Collection optics include a quartz fiber optic bundle which allows spectra to be measured from single photophores. Since corrections are not required for temporal variations in emissions, it was possible to acquire spectra of transient luminescent events that would be difficult or impossible to record with conventional techniques. Use of this system at sea on freshly trawled material and in the laboratory has permitted acquisition of a large collection of bioluminescence spectra of precision rarely obtained previously with such material. Among unusual spectral features revealed were organisms capable of emitting more than one color, including: Umbellula magniflora and Stachyptilum superbum (Pennatulacea), Parazoanthus lucificum (Zoantharia), and Cleidopus gloria-maris (Pisces). Evidence is presented that the narrow bandwidth of the emission spectrum for Argyropelecus affinis (Pisces) is due to filters in the photophores. PMID- 29324014 TI - EXPERIMENTAL STUDIES ON EMBRYOGENESIS IN HYDROZOANS (TRACHYLINA AND SIPHONOPHORA) WITH DIRECT DEVELOPMENT. AB - The normal embryology of the trachymedusa Aglantha digitale and the siphonophores Nanomia cara and Muggiaea atlantica is described. Marking experiments on these embryos indicate that the site of first cleavage initiation corresponds to the oral pole of the oral-aboral axis. In Muggiaea the plane of the first cleavage corresponds to the plane of bilateral symmetry. Experiments in which presumptive aboral and oral regions are isolated from these embryos at different stages of development indicate that there is an early determination of different regions along this axis. Only the oral region of the Muggiaea embryo has the ability to regulate. These eggs have a pronounced centrolecithal organization. As a consequence of cleavage, the outer ectoplasmic layer of the egg ends up in the cells that form the ectoderm, while the inner or endoplasmic region of the egg ends up in the cells that form the endoderm. Experimentally created fragments of fertilized eggs that contain only ectoplasm differentiate to form an unorganized ectodermal cell mass, indicating that endoplasm is necessary in order to differentiate endoderm. The process of embryogenesis in these animals and the developmental mechanisms they use are very different from those used by hydrozoans with indirect development. These embryos use a suite of developmental mechanisms which are very similar to those used by ctenophores. The significance of this similarity is discussed. PMID- 29324015 TI - CIRCULATION OF FLUIDS IN THE GASTROVASCULAR SYSTEM OF THE REEF CORAL ACROPORA CERVICORNIS. AB - Circulation of fluids in the gastrovascular system of A. cervicornis was determined by observing the movement of fluorescein dye injected via a lateral polyp and viewed in the dark under ultra-violet light. Scanning electron microscopy and petrographic thin sections were used to describe the general morphology of the gastrovascular system. This consists of two functional units: an axial unit composed of the coelenteron of the axial polyps and a peripheral unit composed of tubes oriented axially ramifying through the skeleton lying just beneath the outer ectoderm. These units are connected by radially oriented tubes including the coelenterons of the lateral polyps. The entire gastrovascular system is lined by flagellated endoderm cells. Flow in the axial unit is always proximal. Flow in the peripheral unit is both distal and proximal and the velocity is always less than the flow in the axial unit. Light does not appear to change the rate of flow. Rates of flow in the peripheral unit show a diel cycle, with increased flow rates occurring between 2100 and 0600. PMID- 29324016 TI - SPATIAL AND TEMPORAL PATTERNS OF MITOSIS IN THE CELLS OF THE AXIAL POLYP OF THE REEF CORAL ACROPORA CERVICORNIS. AB - The fluorescent stain DAPI was used to observe mitoses in the endoderm and the calicoblastic ectoderm of the axial polyp of the reef coral Acropora cervicornis. A diel periodicity in the mitotic index (defined as the percentage of cells in some stage of mitosis) of each tissue occurred with a maximum of about 2% at midnight and a minimum of 0.5% at midday. Dividing cells were located from the tip of the column (when the polyp was contracted into the calyx) to 10 mm proximal to this point suggesting that there is no narrow zone of proliferating cells. The magnitude of the mitotic indices of these tissues suggests that it may account for the observed daily growth rate of ca. 300 um in the axial polyp. PMID- 29324017 TI - SURVIVAL, GROWTH, AND BEHAVIOR OF THE LOLIGINID SQUIDS LOLIGO PLEI, LOLIGO PEALEI, AND LOLLIGUNCULA BREVIS (MOLLUSCA: CEPHALOPODA) IN CLOSED SEA WATER SYSTEMS. AB - Over 1200 squids were captured by night lighting, trawling, or seining in the northern Gulf of Mexico for laboratory maintenance. Two types of recirculating sea water systems were designed and evaluated: a 2 m circular tank (1500 liter capacity) and a 10 m long raceway (10,000 liters). Mean laboratory survival was: Loligo plei (12 to 252 mm mantle length, ML) 11 days, maximum 84 days; Loligo pealei (109 to 285 mm ML) 28 days, maximum 71 days; Lolliguncula brevis (27 to 99 mm ML) 19 days, maximum 125 days. Smaller squids showed significantly poorer survival than larger ones. All squids fed well on a variety of live estuarine fishes and shrimps. Growth rates depended upon stage of maturity. The highest rates were Loligo plei 59 mm/month (23.8 g/mo), Loligo pealei 77 mm/mo (67.3 g/mo), and Lolliguncula brevis 31 mm/mo (17.2 g/mo). General aspects of behavior and body patterning were species-specific and were useful indices of the squids' condition. Key factors for laboratory survival were (1) prevention of skin damage, (2) tank systems with sufficiently large horizontal dimensions, (3) high quality water, (4) ample food supply, (5) no crowding, (6) maintaining squids of similar size to reduce aggression and cannibalism, and (7) segregating sexes to reduce aggression associated with courtship, mating, and egg laying. PMID- 29324018 TI - THE LATITUDINAL COMPENSATION HYPOTHESIS: GROWTH DATA AND A MODEL OF LATITUDINAL GROWTH DIFFERENTIATION BASED UPON ENERGY BUDGETS. I. INTERSPECIFIC COMPARISON OF OPHRYOTROCHA (POLYCHAETA: DORVILLEIDAE). AB - A northern (North Carolina) sibling species of Ophryotrocha grew more rapidly than a southern sibling species (Florida); this presumed advantage, however, diminished to zero as temperature increased from 15 to 30 degrees C. Survival of the northern sibling species was low at 30 degrees C. The differential response probably had a genetic basis since both species had been reared for 2-3 generations under the same conditions. The effect lasted in laboratory populations reared for a year in the laboratory at 25 degrees C (ca. 10 generations). My results are consistent with a graphical model that suggests an evolutionary shift of metabolism-temperature curves and feeding efficiency curves for the two sibling species. These shifts predict a changing advantage of growth of one species relative to the other as temperature increases. PMID- 29324019 TI - THE LATITUDINAL COMPENSATION HYPOTHESIS: GROWTH DATA AND A MODEL OF LATITUDINAL GROWTH DIFFERENTIATION BASED UPON ENERGY BUDGETS. II. INTRASPECIFIC COMPARISONS BETWEEN SUBSPECIES OF OPHRYOTROCHA PUERILIS (POLYCHAETA: DORVILLEIDAE). AB - Individuals of two subspecies of Ophryotrocha puerilis (Polychaeta; Dorvilleidae) were collected from differing thermal regimes, and cultures were maintained for over a year. Despite common rearing, the two subspecies show substantial differences in somatic growth rate. At 15 degrees C, the warm-water subspecies grew more slowly, while at 20 degrees C growth for the two subspecies was not significantly different. At 24 degrees C, the warm-water subspecies grew more rapidly and suffered substantially less mortality than the northern subspecies. These results conform to a model predicting genetic differentiation of metabolic efficiency, leading to differences in growth efficiency among populations adapting to thermally differentiated habitats. The problems faced by the cold water subspecies at 24 degrees C conforms to expectations based upon natural habitat temperatures. PMID- 29324020 TI - ENERGY METABOLISM DURING AIR EXPOSURE AND RECOVERY IN THE HIGH INTERTIDAL BIVALVE MOLLUSC GEUKENSIA DEMISSA GRANOSISSIMA AND THE SUBTIDAL BIVALVE MOLLUSC MODIOLUS SQUAMOSUS. AB - Metabolic responses to air exposure and recovery were investigated in the adductor muscles of the high intertidal mussel Geukensia demissa granosissima and the subtidal mussel Modiolus squamosus. Exposure to air for 12 h had no significant effect on the levels of high energy phosphates (arginine phosphate, ATP) in the adductor muscles of G. demissa granosissima, indicating minimal metabolic stress in this species. In contrast, there was a considerable decline in arginine phosphate and ATP during air exposure in the phasic and tonic adductor muscles of M. squamosus. In addition, there was a substantial accumulation of alanine and succinate under these conditions. Furthermore, D lactate accumulated in the phasic muscle of M. squamosus during air exposure. During recovery, there were transient accumulations of alanopine/ strombine in both G. demissa granosissima and M. squamosus. The differences in metabolic responses between these two species reflect adaptations to specific micro habitats. It appears that metabolism in the posterior adductor muscle of G. demissa granosissima is largely aerobic during air exposure. The subtidal species M. squamosus displays a much greater reliance on anaerobic pathways of energy production under these conditions. PMID- 29324021 TI - STUDIES ON THE REPRODUCTIVE SYSTEMS OF SEA-STARS. II. THE MORPHOLOGY AND HISTOLOGY OF THE GONODUCT OF ASTERIAS VULGARIS. AB - In Asterias vulgaris there are 10 separate units of the reproductive system, each with its own distinct gonoduct. The gonoduct forms late in the life of the sea star as an outgrowth of the inner sac of the gonad. During its formation, each gonoduct grows from the gonad to the body wall where it burrows through a layer of connective tissue located below the parietal peritoneum. The gonoduct follows this subperitoneal connective tissue into a coelomic pocket (which ends externally in several dermal branchiae) and ultimately penetrates the dermis, where it divides into subsidiary ducts which open separately in the external epithelium of the interradius. The gonoduct consists of an outer elastic connective tissue layer continuous with both walls of the haemal sinus of the inner sac of the gonad and an inner epithelial layer continuous with the germinal epithelium of the gonad. Near the point where the gonoduct opens into the lumen of the gonad, the epithelial layer of the gonoduct forms cross-ridges which span the lumen of the duct and imbricate, partially blocking the lumen. PMID- 29324022 TI - SHELL GROWTH IN THE SCALLOP ARGOPECTEN IRRADIANS. I. ISOTOPE INCORPORATION WITH REFERENCE TO DIURNAL GROWTH. AB - 1. Incorporation of calcium and carbonate into shell has been studied in the scallop Argopecten irradians using 45Ca and 14C-bicarbonate. 2. The incorporation of 45Ca and 14C-carbonate into shell was linear with time after a lag period of 1 to 2 hours. The shell-forming mantle tissue attained a steady state with respect to 45Ca in the sea water medium within 2 hours. 3. The molar ratio of 45Ca to 14C carbonate deposited in shell was not significantly different from unity during 5 hours. 4. The rate of incorporation of 14C-carbonate into shell was highest at the ventral edge and extremely low in the central and hinge areas. 5. The rate of incorporation at the ventral shell edge did not change with increase in shell size. 6. The rate of incorporation of carbonate was low at night when growth ridges form and increased 3-fold at midday when growth ridges are not being formed. 7. The protein content of the shell ridges was 32.9 +/- 3.9% and the protein content of the shell including ridges was 16.0 +/- 2.1%. PMID- 29324023 TI - AGONISM IN ASTEROIDS. AB - 1. Intraspecific agonistic behavior, called bouts, which involves ray interactions between individual sea stars, is reported in species from all three living orders of asteroids and described for Patiria miniata and Pycnopodia helianthoides. This behavior indicates a certain sensitivity to conspecific contact on the aboral surface, in which each individual attempts to place a ray or rays on top of its opponent, an act which may initiate opponent withdrawal. Agonistic intraspecific bouts affect the distribution and feeding of both species although bouts may take place where food is not present. 2. Patiria bouts may last over two hours and sometimes terminate by individuals overlapping and sharing food. Evidence suggests that Patiria bouts are: (a) quite common; (b) not related to sexual behavior; (c) territorial; and (d) influenced as to outcome by relative body orientation; however, when territorial behavior is involved, relative body orientation does not affect bout outcomes. Pycnopodia bouts are of shorter duration (up to 10 minutes), terminating with the withdrawal of one or both animals, and sometimes resulting in an extensive pursuit. 3. Two forms of intraspecific Patiria bouts are noted: continuous-contact and intermittent contact. Intermittent-contact bouts appear less intensive, permitting individuals to feed and to engage in bouts with more than one opponent at a time. It is speculated that intermittent-contact bouts are a type of ritualized activity of a fairly complex nature. 4. Interspecific bouts between specimens of Pycnopodia and two species of Pisaster (P. giganteus and P. brevispinus) have been observed only when the Pisaster sp. is in possession of food. Pycnopodia individuals approach and place rays on the aboral surface of the feeding sea star while attempting to obtain the food with other rays. The specimen of Pisaster sp. actively counterattacks using its pedicellariae. PMID- 29324024 TI - NON-EQUIVALENCE FOR BEAN SEEDS OF CLOCKWISE AND COUNTERCLOCKWISE MAGNETIC MOTION: A NOVEL TERRESTRIAL ADAPTATION? AB - 1. Three experiments on water-uptake in pinto beans, Phaseolus vulgaris, during their first four hours in water have all indicated that clockwise and counterclockwise rotating magnetic fields have statistically significantly different effects upon the rate of the process. 2. The results suggest that this difference is independent of time and place. Critically performed experiments at Evanston, Illinois and Woods Hole, Massachusetts, over more than a two-year span, all gave essentially the same results. 3. A clockwise rotating magnetic field abolished, for the beans, a correlation with concurrent control beans without magnet, while a counterclockwise rotating magnet failed to do so. 4. In a concurrent series involving rotating beans (1 rpm, clockwise and counterclockwise) and beans in fields of a weak rotating magnet (1 rpm, clockwise and counterclockwise), the effects of counterclockwise magnet and counterclockwise table rotations were of opposite character and highly significantly different from one another. Effects of clockwise magnet and clockwise table rotations differed significantly, in turn, from their opposite directions of rotations. 5. The results uniformly support the hypothesis that the different effects reported between clockwise and counterclockwise rotation of organisms result from their systematic, directional motions relative to the geomagnetic field. 6. It is postulated that this non-equivalence for organisms of clockwise and counterclockwise rotations of such extremely weak magnetic fields reflects a novel and fundamental adaptation of organisms to their rotating and sun-orbiting environments. PMID- 29324025 TI - DEVELOPMENT OF BIOLUMINESCENCE AND OTHER EFFECTOR RESPONSES IN THE PENNATULID COELENTERATE RENILLA KOLLIKERI. AB - 1. The development of the pennatulid coelenterate Renilla kollikeri was followed from fertilized egg to primary polyp stage, including observations on the development of effector responses such as ciliary swimming, muscular reactions and bioluminescence. 2. Ciliary swimming is first apparent in the early planula, 32 hr after the spawn. Ciliary activity persists until settlement, at approximately 130 hr. 3. Muscular reactions are first evident as local contractions in the swimmer stage (about 60 hr). Conducted contractions can be elicited at 80 hr, suggesting that a functional conduction system is present in the planula larva. At settlement, separate peduncular and anthocodial muscular responses and peristaltic contractions are evident. 4. The future photocytes first fluoresce at about 80 hr, and thereafter fluorescence intensity increases until the time of settlement. The first sign of bioluminescence follows settlement, and is delayed if settlement is prevented. Bioluminescent responses do not exhibit normal facilitation until the primary polyp stage, and responses of the preceding stages may reflect maturation of the colonial and polyp conduction systems as well as of connections between the two systems. 5. Settlement and metamorphosis are delayed when planulae are reared in containers without sand. PMID- 29324026 TI - ON FEEDING MECHANISMS AND CLEARANCE RATES OF MOLLUSCAN VELIGERS. AB - 1. Beat of preoral cilia and particle paths were filmed for veligers of Crassostrea gigas, Tritonia diomedea, Nassarius obsoletus and an unidentified prosobranch. Particle captures were filmed for the three identified species. 2. Clearance rates per unit length of velar edge are estimated from the equation (L2 R2)WPF/2C, where L is cilium length, R a correction for recovery stroke, W angular velocity, C/P the ratio of velocities of cilium and particle, and F the fraction of particles captured. The clearance rates are in rough agreement with Bayne's values for veligers of Mytilus edulis. 3. In the three identified species, longer preoral cilia clear particles at a higher rate but with less efficiency. Since veligers from larger eggs generally have both longer preoral cilia and a longer velar edge, a larger egg generally produces a veliger with a higher maximum clearance rate when the veliger begins to feed. 4. Angular velocities increase with cilium length in the three identified species of veligers but the larger unidentified species did not continue this trend. 5. Preoral cilia in their effective strokes move 1 to 3 times faster than particles travelling in about the same arc with a mean of about 1.5 times the speed of the particles. In mid effective stroke, the ratio of velocities of cilia and particles is not significantly different for captured and non-captured particles, nor does the ratio vary significantly with angular velocity of cilium. The ratio does vary significantly among species. 6. Particles passing closer to the base of the preoral cilia are more likely to be captured. 7. We hypothesize that suspended particles are concentrated when they are overtaken by preoral cilia in their effective stroke, weakly adhere to the preoral cilia, and are pushed faster than the water. Capture is completed when particles are drawn into the food groove, probably by the action of the recovery stroke of preoral cilia, the current from postoral cilia, or both. PMID- 29324027 TI - IRREVERSIBLE NONGENETIC TEMPERATURE ADAPTATION OF OXYGEN UPTAKE IN CLONES OF THE SEA ANEMONE HALIPLANELLA LUCIAE (VERRILL). AB - 1. Isogenic clones of H. luciae were raised at each of two developmental temperatures, 18 degrees and 28 degrees C. Despite prolonged acclimation to common thermal conditions, oxygen uptake rates differ according to the temperature of reproduction, regeneration and development. 2. The effects of developmental temperature, however, are masked by body size differences. Only when this variable is eliminated can the underlying effect of developmental temperature be detected. 3. The irreversible change is not due to an increase in the gas exchange surface area at the primary site of O2 uptake, the tentacles. 4. No qualitative changes in banding patterns for five enzymes (HK, PGI, IDH, MDH, G 6-PDH) were found. PMID- 29324028 TI - A FIELD STUDY OF GROWTH AND REPRODUCTION IN APLYSIA CALIFORNICA. AB - 1. Observations of field growth rates, reproductive activities, and abundance of Aplysia calfiornica were made over a three-year period on Santa Catalina Island off southern California. 2. The mean weight of the population was found to vary with the location in which the animals were collected, presumably as a result of differing availability of food. 3. Seasonal weight differences were also apparent. In general, small specimens of A. californica appear between February and May. Mean weight reached a maximum between June and August. Considerable variability was encountered from year to year. 4. Tagging and recapture showed that growth rates reached a maximum in the spring just prior to breeding. The rate decreased thereafter until weight loss was experienced in August and September. 5. A. californica was usually most abundant in the spring, with numbers decreasing during the summer. The animals almost completely disappeared during the months of October, November, and December with the exception of extremely small specimens found on algae. 6. Breeding activity was occasionally observed as early as April and reached its greatest intensity during July and August when at least 80% of the animals collected were in breeding aggregations. 7. Histological examination of gonads showed maximum oocyte diameter between June and October, and minimum between January and March. 8. Data are consistent with an annual species whose extended summer breeding period is terminated by the death of mature individuals during the fall. PMID- 29324029 TI - SALT AND WATER BALANCE IN TWO MARINE SPIDER CRABS, LIBINIA EMARGINATA AND PUGETTIA PRODUCTA. II. APPARENT WATER PERMEABILITY. AB - 1. Estimates of osmotic water permeability suggest that Libinia emarginata [166 ul/(g.hr.osmol)] is less permeable to water than Pugettia producta [338 ul/ (g.hr.osmol)]. Data on tracer water exchange supports this conclusion and the differences in apparent permeability can be correlated with differences in habitat. 2. Short-term changes in D2O water exchange were examined in specimens of Carcinus maenas and Libinia emarginata. When these crabs were transferred from 100 to 80% sea water, there was an initial reduction in k in (1/hr), the hourly water exchange fraction, of from 1.9 to 1.4 and from 5.8 to 4.3 in Carcinus and Libinia, respectively. In both crabs, the initial response to the dilute medium is similar; however, in Libinia, the reduction in k is transient while in Carcinus it is a long-term response. 3. Estimates of osmotic (Posm*) and diffusive (Pd*) water permeabilities for Carcinus, Libinia and Pugettia indicate that the ratio of Posm*/Pd* is about 2, which suggests that unstirred layers could have a major influence on tracer water movement in all of these crabs. It is proposed that the initial changes in k, which occur during adaptation to a dilute medium, are at least partly the result of an increase in thickness of the unstirred layers surrounding the gills, caused by a reduction in the flow of medium through the gill chamber. PMID- 29324030 TI - UPTAKE OF AMINO ACIDS BY MARINE POLYCHAETES UNDER ANOXIC CONDITIONS. AB - 1. The effect of anoxia on influx and net flux of amino acids from dilute solutions into two species of marine polychaetes was studied. 2. Rates of influx and net flux correspond quite closely at ambient concentrations greater than 10 uM. Anoxic conditions, produced by incubating specimens of Marphysa and Pareurythoe in solutions containing 2 mM KCN or through which N2 was bubbled, did not affect the tight correspondence between influx and net flux, though rates were reduced by approximately 50%. 3. The effect of Po2 on influx and net flux was examined using a continuous flow system. Influx and net influx remained at control rates down to Po2' s 10 to 20% of air saturation values. 4. Comparisons of rates of net flux to measured values of O2 consumption indicate that these animals can acquire sufficient reduced carbon to account for their oxidative needs if their surfaces are exposed to amino acid levels on the order of 50 to 65 uM. 5. Primary amines in the interstitial water of sediments in the immediate vicinity of populations of these worms averaged between 123 and 131 uM. 6. Marphysa and Pareurythoe live in habitats that are relatively rich in amino acids, and they possess transport systems capable of the net accumulation of these compounds at rates sufficient to provide a significant supplement to other forms of feeding. The uptake process continues during periods of anoxia, though its rate and overall contribution to metabolic requirements are reduced. PMID- 29324031 TI - PARTHENOGENESIS IN COPTOPTERYX VIRIDIS, GIGLIO TOS (1915) (DYCTIOPTERA, MANTIDAE). AB - Several years of observations of the behavior of the mantid Coptoteryx viridis suggested evidence of parthenogenesis in this species. C. viridis is a solitary, sedentary animal, where the female often kills the male before copulation takes place, and the average male adult life is half that of the female. Virgin females were reared in our laboratory from their hatching to the end of their lives; these laid oothecas. From these oothecas, parthenogenetic nymphs were born, all of the female sex and with a very low viability. The karyo-type of the non parthenogenetic individuals of this species was found to be XO-XX with a diploid number of 27 chromosomes for the male and 28 for the female. The autosomes were acrocentric or "t" type while the X chromosome was subtelocentric or "st" type, according to Levan's classification. PMID- 29324032 TI - DEVELOPMENTAL PATTERN AND ADAPTATIONS FOR REPRODUCTION IN NUCELLA CRASSILABRUM AND OTHER MURICACEAN GASTROPODS. AB - 1. Eggs of Nucella crassilabrum range from 204 to 293 um in diameter (mean = 240 um). Only 6.6 to 7.9% are fertile; the remaining are ingested as nurse eggs. 2. Embryos metamorphose before hatching. Pre-hatching time ranges from 55 to 80 days according to seasonal temperature fluctuations. 3. Hatching size varies from 0.82 to 1.3 mm, depending on number of nurse-eggs ingested per embryo (from 3 to 20). Number of fertile embryos per capsule (10 to 122) depends on capsule size. 4. Hatching type and hatching size shown by N. crassilabrum agree with those of other muricaceans living in similar habitat conditions. 5. Pre-hatching time and hatching size data of various muricaceans are analyzed to determine to what extent they influence embryonic mode of nutrition, namely the presence of nurse eggs or alternatively large and fertile self-sufficient eggs. Provision of nurse eggs for embryos is of common occurrence among intertidal muricaceans and this mode of nutrition seems to have been favored in such habitats to reduce developmental time. Providing the yolk as nurse-eggs seems also to contribute to a larger hatching size, as suggested by some subtidal muricaceans with such embryo support patterns. PMID- 29324033 TI - EARLY POST-METAMORPHIC GROWTH, BUDDING AND SPICULE FORMATION IN THE COMPOUND ASCIDIAN CYSTODYTES LOBATUS. AB - 1. The colonial ascidian Cystodytes lobatus has a long breeding season (at least 6 months) and releases tadpoles sporadically throughout the day, indicating a long period of recruitment. 2. Tadpoles of C. lobatus were settled and reared in the laboratory in order to observe early growth, budding and spicule formation. 3. Budding is preceded by the formation of a new stomach at the posterior end of the esophagus and fits Nakauchi's Type I budding pattern. 4. Spicule formation begins within 5 days after settlement. The spicules appear to form in a particular region at the anterior end of the abdomen and migrate over the abdomen to form a single or slightly overlapping layer embedded in a "tunic spicular lamina." This lamina lies between the common tunic and the zooid cavity and forms a spicular sac in the tunic surrounding but separated from the abdomen of each zooid. It stains especially heavily for sulfated acid mucopolysaccharide; the spicules are concluded to form by cellular action in this organic matrix. 5. There is great variation among zooids in the quantity of spicules formed. These differences are maintained in the buds, resulting in colonies in which all zooids either have few or many spicules, and are therefore probably genetic in origin. 6. During budding the spicular sac becomes disrupted and appears to bud, resulting in a reallocation of the spicules to the buds and formation of separate spicular sacs around the abdomen of each bud. At budding there is apparently no disruption of bladder cell membranes in the tunic and no dissolution of spicules by the acids contained in the bladder cells. PMID- 29324034 TI - CHARACTERISTICS AND REGULATION OF FISSION ACTIVITY IN CLONAL CULTURES OF THE COSMOPOLITAN SEA ANEMONE, HALIPLANELLA LUCIAE (VERRILL). AB - 1. Permanent cultures of a clone of H. luciae from N. W. Florida were reared under different temperature and feeding regimes in order to identifiy and quantify parameters of asexual reproduction. 2. The principle components of fission activity include fission rate, a delay period following a mechanical disturbance, and periodic pulses of increased fission activity; all components are regulated by temperature and feeding frequency. 3. A distinction is made between fission rate including the delay period (k), and fission rate following the delay period (kadj). 4. Fission rates (kadj) ranged from 0.0162 (doubling time = 42.8 days) at 17 degrees C to 0.0727 (doubling time = 9.5 days) at 26 degrees C. 5. Temperature is the foremost regulator of k; the greatest influence of feeding frequency was upon periodic pulses of fission activity. 6. Culture data indicate that recruitment in natural populations of this clone is restricted by seasonal temperature; below 20 degrees C there is a sharp reduction in k. It is suggested that inhibition of k by temperatures below 20 degrees C favors a transition from asexual to sexual reproduction. 7. The pulsatile, periodic character of fission activity is prominent in laboratory cultures, and suggests that such activity in natural habitats may have a phasic dependence upon tidal and photoperiodic cycles. PMID- 29324035 TI - LOCOMOTOR AND LIGHT RESPONSES OF LARVAE OF THE HORSESHOE CRAB, LIMULUS POLYPHEMUS (L.). AB - The horseshoe crab Limulus polyphemus lays its eggs on sandy beaches at the level of the highest high tide in the northeastern Gulf of Mexico, buried approximately 18 cm below the surface. When they hatch, the larvae must move from the buried nest site into the marine environment. In the field, nests of larvae move to the sand surface and emerge at the spring high tide on the night of full moon. They may also be released by heavy surf associated with storms. No release occurs on the spring high tides associated with new moon. In the laboratory, larvae are seen to be nocturnally active, both under ambient and DD photoperiods. Activity peaks at times of full and new moons, and larvae are positively phototatic at all lunar phases except new moon. A model to account for observed field behavior in light of laboratory activity and light responses is presented. PMID- 29324036 TI - Entomological Opportunities and Challenges for Sustainable Viticulture in a Global Market. AB - Viticulture has experienced dramatic global growth in acreage and value. As the international exchange of goods has increased, so too has the market demand for sustainably produced products. Both elements redefine the entomological challenges posed to viticulture and have stimulated significant advances in arthropod pest control programs. Vineyard managers on all continents are increasingly combating invasive species, resulting in the adoption of novel insecticides, semiochemicals, and molecular tools to support sustainable viticulture. At the local level, vineyard management practices consider factors such as the surrounding natural ecosystem, risk to fish populations, and air quality. Coordinated multinational responses to pest invasion have been highly effective and have, for example, resulted in eradication of the moth Lobesia botrana from California vineyards, a pest found in 2009 and eradicated by 2016. At the global level, the shared pests and solutions for their suppression will play an increasing role in delivering internationally sensitive pest management programs that respond to invasive pests, climate change, novel vector and pathogen relationships, and pesticide restrictions. PMID- 29324037 TI - Health Hazards Associated with Arthropod Infestation of Stored Products. AB - Insects and mites are common inhabitants and accidental invaders of food, including durable commodities, and their presence can have both direct and indirect effects on human health. The most common direct effect is contamination of food with arthropod fragments and related contaminants, which may be allergenic or even carcinogenic. The most important indirect effect is that their presence can change the storage microenvironment, making durable products suitable for the rapid development of fungi and other microorganisms. Some of these fungi can produce toxins (e.g., aflatoxins) that endanger human health. Insects may actively or passively contribute to the spread of microorganisms, increasing product contamination, and they may host bacteria that have developed antibiotic resistance, contributing to their spread in food. Several species also may host, attract, or transmit tapeworms, predators, or parasitoids that may affect health. This review synthesizes research on these topics and suggests directions for future research. PMID- 29324038 TI - The Evolution and Metamorphosis of Arthropod Proteomics and Genomics. AB - This article presents an overview of the development of techniques for analyzing cuticular proteins (CPs), their transcripts, and their genes over the past 50 years based primarily on experience in the laboratory of J.H. Willis. It emphasizes changes in the kind of data that can be gathered and how such data provided insights into the molecular underpinnings of insect metamorphosis and cuticle structure. It describes the techniques that allowed visualization of the location of CPs at both the anatomical and intracuticular levels and measurement of the appearance and deployment of transcripts from CP genes as well as what was learned from genomic and transcriptomic data. Most of the early work was done with the cecropia silkmoth, Hyalophora cecropia, and later work was with Anopheles gambiae. PMID- 29324039 TI - Phylogeny and Evolution of Neuropterida: Where Have Wings of Lace Taken Us? AB - The last 25 years of phylogenetic investigation into the three orders constituting the superorder Neuropterida-Raphidioptera, Megaloptera, and Neuroptera-have brought about a dramatic revision in our understanding of the evolution of lacewings, snakeflies, dobsonflies, and their diverse relatives. Phylogenetic estimations based on combined analyses of diverse data sources, ranging from adult and larval morphology to full mitochondrial genomic DNA, have begun to converge on similar patterns, many times in accordance with hypotheses put forth by Cyril Withycombe nearly a century ago. These data, in combination with information from the fossil record, have given a revised perspective on the historical evolution and classification of Neuropterida, necessitating an overhaul of their organization and providing focus and insight on fruitful future efforts for neuropterology. PMID- 29324040 TI - Neonicotinoids and Other Insect Nicotinic Receptor Competitive Modulators: Progress and Prospects. AB - Neonicotinoids (neonics) are remarkably effective as plant systemics to control sucking insects and for flea control on dogs and cats. The nitroimines imidacloprid, clothianidin, thiamethoxam, and dinotefuran are the leaders among the seven commercial neonics that also include the nitromethylene nitenpyram, the nitromethylene-derived cycloxaprid, and the cyanoimines acetamiprid and thiacloprid. Honey bees are highly sensitive to the nitroimines and nitromethylenes, but the cyanoimines are less toxic. All neonics are nicotinic acetylcholine receptor (nAChR) agonists with a common mode of action, target-site cross-resistance, and much higher potency on insect than mammalian nAChRs at defined binding sites. The structurally related sulfoximine sulfoxaflor and butenolide flupyradifurone are also nAChR agonists, and the mesoionic triflumezopyrim is a nAChR competitive modulator with little or no target-site cross-resistance. Some neonics induce stress tolerance in plants via salicylate associated systems. The neonics in general are readily metabolized and, except for pollinators, have favorable toxicological profiles. PMID- 29324041 TI - Preface: Valedictory from a Gadfly Grammarian. PMID- 29324042 TI - Mosquito Immunobiology: The Intersection of Vector Health and Vector Competence. AB - As holometabolous insects that occupy distinct aquatic and terrestrial environments in larval and adult stages and utilize hematophagy for nutrient acquisition, mosquitoes are subjected to a wide variety of symbiotic interactions. Indeed, mosquitoes play host to endosymbiotic, entomopathogenic, and mosquito-borne organisms, including protozoa, viruses, bacteria, fungi, fungal-like organisms, and metazoans, all of which trigger and shape innate infection-response capacity. Depending on the infection or interaction, the mosquito may employ, for example, cellular and humoral immune effectors for septic infections in the hemocoel, humoral infection responses in the midgut lumen, and RNA interference and programmed cell death for intracellular pathogens. These responses often function in concert, regardless of the infection type, and provide a robust front to combat infection. Mosquito-borne pathogens and entomopathogens overcome these immune responses, employing avoidance or suppression strategies. Burgeoning methodologies are capitalizing on this concerted deployment of immune responses to control mosquito-borne disease. PMID- 29324043 TI - Tritrophic Interactions Mediated by Herbivore-Induced Plant Volatiles: Mechanisms, Ecological Relevance, and Application Potential. AB - Tritrophic interactions between plants, herbivores, and their natural enemies are an integral part of all terrestrial ecosystems. Herbivore-induced plant volatiles (HIPVs) play a key role in these interactions, as they can attract predators and parasitoids to herbivore-attacked plants. Thirty years after this discovery, the ecological importance of the phenomena is widely recognized. However, the primary function of HIPVs is still subject to much debate, as is the possibility of using these plant-produced cues in crop protection. In this review, we summarize the current knowledge on the role of HIPVs in tritrophic interactions from an ecological as well as a mechanistic perspective. This overview focuses on the main gaps in our knowledge of tritrophic interactions, and we argue that filling these gaps will greatly facilitate efforts to exploit HIPVs for pest control. PMID- 29324044 TI - The Management of Insect Pests in Australian Cotton: An Evolving Story. AB - The Australian cotton industry progressively embraced integrated pest management (IPM) to alleviate escalating insecticide resistance issues. A systems IPM approach was used with core principles that were built around pest ecology/biology and insecticide resistance management; together, these were integrated into a flexible, year-round approach that facilitated easy incorporation of new science, strategies, and pests. The approach emphasized both strategic and tactical elements to reduce pest abundance and rationalize decisions about pest control, with insecticides as a last resort. Industry involvement in developing the approach was vital to embedding IPM within the farming system. Adoption of IPM was facilitated by the introduction of Bt cotton, availability of selective insecticides, economic validation, and an industry-wide extension campaign. Surveys indicate IPM is now embedded in industry, confirming the effectiveness of an industry-led, backed-by-science approach. The amount of insecticide active ingredient applied per hectare against pests has also declined dramatically. Though challenges remain, pest management has transitioned from reactively attempting to eradicate pests from fields to proactively managing them year-round, considering the farm within the wider landscape. PMID- 29324045 TI - Neuroparasitology of Parasite-Insect Associations. AB - Insect behavior can be manipulated by parasites, and in many cases, such manipulation involves the central and peripheral nervous system. Neuroparasitology is an emerging branch of biology that deals with parasites that can control the nervous system of their host. The diversity of parasites that can manipulate insect behavior ranges from viruses to macroscopic worms and also includes other insects that have evolved to become parasites (notably, parasitic wasps). It is remarkable that the precise manipulation observed does not require direct entry into the insect brain and can even occur when the parasite is outside the body. We suggest that a spatial view of manipulation provides a holistic approach to examining such interactions. Integration across approaches from natural history to advanced imaging techniques, omics, and experiments will provide new vistas in neuroparasitology. We also suggest that for researchers interested in the proximate mechanisms of insect behaviors, studies of parasites that have evolved to control such behavior is of significant value. PMID- 29324046 TI - Gustatory Processing in Drosophila melanogaster. AB - The ability to identify nutrient-rich food and avoid toxic substances is essential for an animal's survival. Although olfaction and vision contribute to food detection, the gustatory system acts as a final checkpoint control for food acceptance or rejection. The vinegar fly Drosophila melanogaster tastes many of the same stimuli as mammals and provides an excellent model system for comparative studies of taste detection. The relative simplicity of the fly brain and behaviors, along with the molecular genetic and functional approaches available in this system, allow the examination of gustatory neural circuits from sensory input to motor output. This review discusses the molecules and cells that detect taste compounds in the periphery and the circuits that process taste information in the brain. These studies are providing insight into how the detection of taste compounds regulates feeding decisions. PMID- 29324047 TI - The Discovery of Arthropod-Specific Viruses in Hematophagous Arthropods: An Open Door to Understanding the Mechanisms of Arbovirus and Arthropod Evolution? AB - The discovery of an odd virus from hematophagous arthropods 40 years ago by Stollar and Thomas described cell fusing agent virus in cells derived from Aedes aegypti mosquitoes. Then came the report of Kamiti River virus from Ae. macintoshi in 1999, followed by worldwide reports of the discovery of other viruses of mosquitoes, ticks, and midges that replicate only in arthropods and not in vertebrates or in vertebrate cells. These viruses (now totaling at least 64 published) have genomes analogous to viruses in various families that include arboviruses and nonarboviruses. It is likely that some of these viruses have been insufficiently studied and may yet be shown to infect vertebrates. However, there is no doubt that the vast majority are restricted to arthropods alone and that they represent a recently recognized clade. Their biology, modes of transmission, worldwide distribution (some have been detected in wild-caught mosquitoes in both Asia and the United States, for example), molecular characteristics of their genomes, and potential for becoming vertebrate pathogens, or at least serving as virus reservoirs, are fascinating and may provide evidence useful in understanding virus evolution. Because metagenomics studies of arthropods have shown that arthropod genomes are the sources of arthropod virus genomes, further studies may also provide insights into the evolution of arthropods. More recently, others have published excellent papers that briefly review discoveries of arthropod viruses and that characterize certain genomic peculiarities, but, to now, there have been no reviews that encompass all these facets. We therefore anticipate that this review is published at a time and in a manner that is helpful for both virologists and entomologists to make more sense and understanding of this recently recognized and obviously important virus group. This review focuses specifically on arthropod viruses in hematophagous arthropods. PMID- 29324048 TI - Peer Observation of Rounds Leads to Collegial Discussion of Teaching. AB - PROBLEM: Faculty in the Division of Hospital Medicine provide most of the clinical teaching for learners at our institution. The majority of these faculty are Assistant Professors with limited formal instruction in clinical teaching. Previous Divisional strategies to improve clinical teaching ability included discussion of effective teaching behaviors, developing written expectations for teaching faculty, and instituting seminars on effective clinical teaching. Heretofore, the Division had not utilized a direct observation exercise. INTERVENTION: We developed a direct observation exercise to encourage discussion of teaching techniques and contemplation of change. Using a social learning model, we developed a peer-to-peer observation followed by a nonevaluative discussion. We created a tool for describing teaching behaviors in 5 domains that were similar to or different from the usual behavior of the observing peer: learner presentations, team leadership, bedside teaching, professionalism, and other. After the observation, the observing and observed faculty met to discuss observed teaching behaviors. Both faculty members discussed and then recorded any teaching behaviors that they planned to adopt or change. CONTEXT: We implemented this intervention in a 22-member Academic Division of Hospital Medicine at a tertiary care medical center in the United States. A high proportion were junior faculty and graduates of our residency program. OUTCOME: We reviewed records of 28 of 31 observations that were completed during the initial 9-month period of implementation and later surveyed faculty. The exercise resulted in planned changes in teaching behaviors that included instituting new methods to improve teaching team leadership, triaging of patients seen on rounds, faculty behaviors during oral presentations, giving real-time feedback, use of technology and humor, demonstrating physical examination findings, and modeling professional behaviors. Faculty later reported adoption of new teaching behaviors that were important to them. LESSONS LEARNED: This exercise was easily implemented, resulted in planned changes by both observed and observing peers, and resulted in widespread adoption of some specific teaching behaviors. The most commonly planned change dealt with team leadership or organizational issues. When given the freedom to choose, junior faculty were more likely to observe senior faculty. PMID- 29324050 TI - The Roles of Adjuvant Supplements in Colorectal Cancer Patients on Chemotherapy - Reaping Benefits from Metabolic Crosstalk. AB - The prevalence of colorectal cancer (CRC) is on a steady rise over the years, with the World Health Organization (WHO) reporting CRC as the fourth leading cause of cancer-related death worldwide. While treatment modalities may differ in accordance to the staging and severity of the disease itself, chemotherapy is almost unavoidable in most cases. Though effective in its mode of action, chemotherapy is commonly associated with undesirable side effects that negatively affects the patient in terms of quality of life, and in some cases may actually interfere with their treatment regimens, thus escalating to poor prognosis. Gastrointestinal disturbances is a major side effect of chemotherapy and in CRC, gastrointestinal disturbances may be further aggravated and grave in nature mainly due to the affected site, being the gastrointestinal tract. The use of complementary therapies as adjuncts to alleviate the side effects of chemotherapy in CRC patients is gaining prominence with dietary supplements being the most commonly employed adjunct. Some of the frequently used dietary supplements for CRC patients are probiotics, omega-3 fatty acid and glutamine. The successful crosstalk between these dietary supplements with important metabolic pathways is crucial in the alleviation of chemotherapy side effects. PMID- 29324049 TI - Extreme Response Style and the Measurement of Intra-Individual Variability in Affect. AB - Extreme response style (ERS) has the potential to bias the measurement of intra individual variability in psychological constructs. This paper explores such bias through a multilevel extension of a latent trait model for modeling response styles applied to repeated measures rating scale data. Modeling responses to multi-item scales of positive and negative affect collected from smokers at clinic visits following a smoking cessation attempt revealed considerable ERS bias in the intra-individual sum score variances. In addition, simulation studies suggest the magnitude and direction of bias due to ERS is heavily dependent on the mean affect level, supporting a model-based approach to the study and control of ERS effects. Application of the proposed model-based adjustment is found to improve intra-individual variability as a predictor of smoking cessation. PMID- 29324051 TI - Anti-IL-8 antibody potentiates the effect of exogenous surfactant in respiratory failure caused by meconium aspiration. AB - AIM: Meconium aspiration syndrome (MAS) is life-threatening respiratory failure of newborns which can be treated by exogenous surfactant. In response to meconium, increased levels of chemokine IL-8 (CXCL8) stimulate massive neutrophil infiltration of the lungs. Local accumulation and activation of neutrophils, on going inflammation, lung edema, and oxidative damage contribute to inactivation of endogenous and therapeutically given surfactants. Therefore, we have hypothesized that addition of monoclonal anti-IL-8 antibody into exogenous surfactant can mitigate the neutrophil-induced local injury and the secondary surfactant inactivation and may finally result in improvement of respiratory functions. METHODS: New Zealand rabbits with intratracheal meconium-induced respiratory failure (meconium 25 mg/ml, 4 ml/kg) were divided into three groups: untreated (M), surfactant-treated (M + S), and treated with combination of surfactant and anti-IL-8 antibody (M + S + anti-IL-8). Surfactant therapy consisted of two lung lavages with diluted porcine surfactant Curosurf (10 ml/kg, 5 mg phospholipids (PL)/ml) followed by undiluted Curosurf (100 mg PL/kg) delivered by means of asymmetric high-frequency jet ventilation (f. 300/min, Ti 20%). In M + S + anti-IL-8 group, anti-IL-8 antibody (100 ug/kg) was added directly to Curosurf dose. Animals were oxygen-ventilated for additional 5 h, respiratory parameters were measured regularly. Subsequently, cell counts in bronchoalveolar lavage fluid (BAL), lung edema formation, oxidative damage, levels of interleukins (IL)-1beta and IL-6 in the lung homogenate were evaluated. RESULTS: Surfactant instillation significantly improved lung function. Addition of anti-IL-8 to surfactant further improved gas exchange and ventilation efficiency and had longer-lasting effect than surfactant-only therapy. Combined treatment showed the trend to reduce neutrophil count in BAL fluid, local oxidative damage, and levels of IL-1beta and IL-6 more effectively than surfactant-alone, however, these differences were not significant. CONCLUSION: Addition of anti-IL-8 antibody to surfactant could potentiate the efficacy of Curosurf on the gas exchange in experimental model of MAS. PMID- 29324052 TI - The expression profile of Claudin family members in the developing mouse lung and expression alterations resulting from exposure to secondhand smoke (SHS). AB - Claudins are tight junctional proteins implicated in cell polarity and epithelial barrier maintenance. Claudin misregulation adversely impacts developmental aspects of cell differentiation and proliferation. The current research evaluated transcriptional expression for Claudins 1-11 and 18 in the developing murine lung at embryonic days (E) 14.5, 16.5, and 18.5 and at post-natal day (PN) 3 and PN15. Mouse lungs were also assessed by immunohistochemical analysis to qualitatively evaluate Claudin protein expression. Pregnant dams were further exposed to secondhand smoke (SHS) from embryonic day (E)15.5 to 18.5 and Claudin mRNA was immediately screened in pup lungs. Other than Claudin-6, mRNA expression patterns for Claudin family members tended to decrease at E16.5, increase at E18.5, and decrease again at PN3 before reaching a peak of expression at PN15. Claudin-6 mRNA expression decreased through gestation and into post-natal periods. Immunohistochemical profiling implicated a subset of Claudins as plausible orchestrators of proximal vs. distal lung barrier establishment. Assessment of Claudin mRNA expression at E18.5 following SHS exposure revealed a significant reduction in transcription for all Claudins except Claudin-18 (no change). These data support the need for further studies using gene targeted mice that knock in/out specific Claudins so that precise functions in the normal and diseased lung can be determined. PMID- 29324053 TI - Systematic Review Methodology for the Fatigue in Emergency Medical Services Project. AB - BACKGROUND: Guidance for managing fatigue in the Emergency Medical Services (EMS) setting is limited. The Fatigue in EMS Project sought to complete multiple systematic reviews guided by seven explicit research questions, assemble the best available evidence, and rate the quality of that evidence for purposes of producing an Evidence Based Guideline (EBG) for fatigue risk management in EMS operations. METHODS: We completed seven systematic reviews that involved searches of six databases for literature relevant to seven research questions. These questions were developed a priori by an expert panel and framed in the Population, Intervention, Comparison, and Outcome (PICO) format and pre registered with PROSPERO. Our target population was defined as persons 18 years of age and older classified as EMS personnel or similar shift worker groups. A panel of experts selected outcomes for each PICO question as prescribed by the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology. We pooled findings, stratified by study design (experimental vs. observational) and presented results of each systematic review in narrative and quantitative form. We used meta-analyses of select outcomes to generate pooled effects. We used the GRADE methodology and the GRADEpro software to designate a quality of evidence rating for each outcome. RESULTS: We present the results for each systematic review in accordance with the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA). More than 38,000 records were screened across seven systematic reviews. The median, minimum, and maximum inter rater agreements (Kappa) between screeners for our seven systematic reviews were 0.66, 0.49, and 0.88, respectively. The median, minimum, and maximum number of records retained for the seven systematic reviews was 13, 1, and 100, respectively. We present key findings in GRADE Evidence Profile Tables in separate publications for each systematic review. CONCLUSIONS: We describe a protocol for conducting multiple, simultaneous systematic reviews connected to fatigue with the goal of creating an EBG for fatigue risk management in the EMS setting. Our approach may be informative to others challenged with the creation of EBGs that address multiple, inter-related systematic reviews with overlapping outcomes. PMID- 29324054 TI - Bayesian Diagnostics of Hidden Markov Structural Equation Models with Missing Data. AB - Cocaine is a type of drug that functions to increase the availability of the neurotransmitter dopamine in the brain. However, cocaine dependence or abuse is highly related to an increased risk of psychiatric disorders and deficits in cognitive performance, attention, and decision-making abilities. Given the chronic and persistent features of drug addiction, the progression of abstaining from cocaine often evolves across several states, such as addiction to, moderate dependence on, and swearing off cocaine. Hidden Markov models (HMMs) are well suited to the characterization of longitudinal data in terms of a set of unobservable states, and have increasingly been used to uncover the dynamic heterogeneity in progressive diseases or activities. However, the existence of outliers or influential points may misidentify the hidden states and distort the associated inference. In this study, we develop a Bayesian local influence procedure for HMMs with latent variables in the presence of missing data. The proposed model enables us to investigate the dynamic heterogeneity of multivariate longitudinal data, reveal how the interrelationships among latent variables change from one state to another, and simultaneously conduct statistical diagnosis for the given data, model assumptions, and prior inputs. We apply the proposed procedure to analyze a dataset collected by the UCLA center for advancing longitudinal drug abuse research. Several outliers or influential points that seriously influence estimation results are identified and removed. The proposed procedure also discovers the effects of treatment and individuals' psychological problems on cocaine use behavior and delineates their dynamic changes across the cocaine-addiction states. PMID- 29324055 TI - Bayesian PTSD-Trajectory Analysis with Informed Priors Based on a Systematic Literature Search and Expert Elicitation. AB - There is a recent increase in interest of Bayesian analysis. However, little effort has been made thus far to directly incorporate background knowledge via the prior distribution into the analyses. This process might be especially useful in the context of latent growth mixture modeling when one or more of the latent groups are expected to be relatively small due to what we refer to as limited data. We argue that the use of Bayesian statistics has great advantages in limited data situations, but only if background knowledge can be incorporated into the analysis via prior distributions. We highlight these advantages through a data set including patients with burn injuries and analyze trajectories of posttraumatic stress symptoms using the Bayesian framework following the steps of the WAMBS-checklist. In the included example, we illustrate how to obtain background information using previous literature based on a systematic literature search and by using expert knowledge. Finally, we show how to translate this knowledge into prior distributions and we illustrate the importance of conducting a prior sensitivity analysis. Although our example is from the trauma field, the techniques we illustrate can be applied to any field. PMID- 29324057 TI - Evidence-Based Guidelines for Fatigue Risk Management in Emergency Medical Services: A Significant Step Forward and a Model for Other High-Risk Industries. PMID- 29324056 TI - Cardiopulmonary effects induced by occupational exposure to titanium dioxide nanoparticles. AB - Although some toxicological studies have reported that exposure to titanium dioxide nanoparticles (nano-TiO2) may elicit adverse cardiopulmonary effects, related data collected from human are currently limited. The purpose of this study is to explore cardiopulmonary effects among workers who were exposed to nano-TiO2 and to identify biomarkers associated with exposure. A cross-sectional study was conducted in a nano-TiO2 manufacturing plant in eastern China. Exposure assessment and characterization of TiO2 particles were performed in a packaging workshop. Physical examination and possible biomarkers for cardiopulmonary effects were examined among 83 exposed workers and 85 controls. In packaging workshop, the total mass concentration of particles was 3.17 mg/m3. The mass concentration of nanoparticles was 1.22 mg/m3 accounting for 39% of the total mass. Lung damage markers (SP-D and pulmonary function), cardiovascular disease markers (VCAM-1, ICAM-1, LDL, and TC), oxidative stress markers (SOD and MDA), and inflammation markers (IL-8, IL-6, IL-1beta, TNF-alpha, and IL-10) were associated with occupational exposure to nano-TiO2. Among those markers, SP-D showed a time (dose)-response pattern within exposed workers. The data strongly suggest that nano-TiO2 could contribute, at least in part, to the cardiopulmonary effects observed in workers. The studied markers and pulmonary function tests may be useful in health surveillance for workers exposed to nanomaterials. PMID- 29324058 TI - Evidence-Based Guidelines for Fatigue Risk Management in Emergency Medical Services: A Step in the Right Direction Toward Better Sleep Health. PMID- 29324059 TI - Effect of Fatigue Training on Safety, Fatigue, and Sleep in Emergency Medical Services Personnel and Other Shift Workers: A Systematic Review and Meta Analysis. AB - BACKGROUND: Fatigue training may be an effective way to mitigate fatigue-related risk. We aimed to critically review and synthesize existing literature on the impact of fatigue training on fatigue-related outcomes for Emergency Medical Services (EMS) personnel and similar shift worker groups. METHODS: We performed a systematic literature review for studies that tested the impact of fatigue training of EMS personnel or similar shift workers. Outcomes of interest included personnel safety, patient safety, personnel performance, acute fatigue, indicators of sleep duration and quality, indicators of long-term health (e.g., cardiovascular disease), and burnout/stress. A meta-analysis was performed to determine the impact of fatigue training on sleep quality. RESULTS: Of the 3,817 records initially identified for review, 18 studies were relevant and examined fatigue training in shift workers using an experimental or quasi-experimental design. Fatigue training improved patient safety, personal safety, and ratings of acute fatigue and reduced stress and burnout. A meta-analysis of five studies showed improvement in sleep quality (Fixed Effects SMD -0.87; 95% CI -1.05 to 0.69; p < 0.00001; Random Effects SMD -0.80; 95% CI -1.72, 0.12; p < 0.00001). CONCLUSIONS: Reviewed literature indicated that fatigue training improved safety and health outcomes in shift workers. Further research is required to identify the optimal components of fatigue training programs to maximize the beneficial outcomes. PMID- 29324060 TI - Proposed Performance Measures and Strategies for Implementation of the Fatigue Risk Management Guidelines for Emergency Medical Services. AB - BACKGROUND: Performance measures are a key component of implementation, dissemination, and evaluation of evidence-based guidelines (EBGs). We developed performance measures for Emergency Medical Services (EMS) stakeholders to enable the implementation of guidelines for fatigue risk management in the EMS setting. METHODS: Panelists associated with the Fatigue in EMS Project, which was supported by the National Highway Traffic Safety Administration (NHTSA), used an iterative process to develop a draft set of performance measures linked to 5 recommendations for fatigue risk management in EMS. We used a cross-sectional survey design and the Content Validity Index (CVI) to quantify agreement among panelists on the wording and content of draft measures. An anonymous web-based tool was used to solicit the panelists' perceptions of clarity and relevance of draft measures. Panelists rated the clarity and relevance separately for each draft measure on a 4-point scale. CVI scores >=0.78 for clarity and relevance were specified a priori to signify agreement and completion of measurement development. RESULTS: Panelists judged 5 performance measures for fatigue risk management as clear and relevant. These measures address use of fatigue and/or sleepiness survey instruments, optimal duration of shifts, access to caffeine as a fatigue countermeasure, use of napping during shift work, and the delivery of education and training on fatigue risk management for EMS personnel. Panelists complemented performance measures with suggestions for implementation by EMS agencies. CONCLUSIONS: Performance measures for fatigue risk management in the EMS setting will facilitate the implementation and evaluation of the EBG for Fatigue in EMS. PMID- 29324061 TI - The Prediction of Deterioration of Nutritional Status during Chemoradiation Therapy in Patients with Esophageal Cancer. AB - Patients with esophageal cancer are at high risk of developing malnutrition during neoadjuvant chemoradiation therapy (CRT), which in turn is associated with postoperative morbidity. The aim of the study is to explore whether parameters of a complete pre-treatment nutritional status may predict deterioration of nutritional status during CRT in patients with esophageal cancer. In this prospective cohort study, 101 patients with esophageal cancer treated with CRT were included. Data of patient characteristics, tumor classification, performance score, %weight change, body mass index, fat (free) mass index, phase angle, handgrip strength, energy- and protein intake, and use of (additional) dietary supplements were collected. A prediction model was constructed to identify predictive parameters for deterioration in nutritional status (defined as weight loss of >5% and/or decline in fat free mass of >=1.4 kg) during CRT. Nutritional status deteriorated in 49 patients (49%) during CRT. The only predictor for deterioration in nutritional status was fat free mass index (OR 1.21 (90% CI: 1.03 - 1.42)). Patients with a higher fat free mass index are at increased risk of deterioration in nutrition status during CRT. Results suggest that all patients should be carefully supervised during CRT, regardless of their nutritional status before start of CRT. PMID- 29324062 TI - Four-day pulse of sodium cromoglycate modulates pulmonary vessel wall remodeling during 21-day hypoxia in rats. AB - AIM OF THE STUDY: Remodeling of pulmonary resistance arteries in rats due to 4 day hypoxia could be successfully suppressed by sodium cromoglycate. In this study, we tested the difference in the suppression between two distinct time patterns of cromoglycate administration during 21-day hypoxia. In the experiment, we focused on some details in both smooth muscle cells and extracellular matrix of pulmonary arterial walls. METHODS: During 21-day hypoxia, rats were treated with sodium cromoglycate either in the first four days or in the last four days. The first four days were chosen to test efficiency of an initial pulse of cromoglycate to suppress pulmonary vascular remodeling. The last four-day administration tested possibility to block remodeling post hoc. RESULTS: Initial pulse reduced and modified remodeling in all levels of pulmonary arteries, which comprises neomuscularization of prealveolar arteries, asymmetrical hypertrophy of tunica media in muscular pulmonary arteries and hypertrophy of tunica media and tunica adventitia in large conduit arteries. Terminal pulse had only negligible effect. CONCLUSIONS: Only the initial cromoglycate therapy led to significant morphological suppression of remodeling. We therefore assume important role of initial remodeling influencing during long time hypoxia experiment. PMID- 29324063 TI - Granulomatous lung inflammation is nanoparticle type-dependent. AB - BACKGROUND: Nanoparticles are increasingly suspected as a strong etiologic factor of granuloma formation. AIM OF THE STUDY: The aim of our study was to compare lung inflammatory response and histology changes following exposure of mice to two widely used nanoparticles: carbon nanotubes (MWCNT) and cadmium-based nanoparticles (QDOT705) in an attempt to better our understanding of granulomatous inflammation. MATERIALS AND METHODS: Various groups of mice were included: control mice and mice that were intranasally instilled with QDOT or MWCNT. At defined time points post-challenge, bronchoalveolar lavages (BALs) and lung tissues were collected to study inflammatory and histologic changes. RESULTS: Analyses of lung BAL fluids and tissues of nanoparticles-challenged mice in comparison to controls found: (1) increased cellularity in BALs, (2) increase of total protein concentration, LDH activity and proteolytic activity in BALs; (3) patchy granulomas, (4) macrophages, CD3 +/- T, Treg and B cell infiltration in granulomatous areas; and (5) altered regulation of key inflammatory mediators and receptors. Importantly, these changes were nanoparticle type-dependent. CONCLUSION: Our work enhances understanding of nanoparticles-induced lung inflammatory and histological changes that result in granuloma formation. We provide compelling evidence that not only exposure to nanoparticles leads to granulomatous lung inflammation, but the severity of this latter is nanostructure type-dependent. Of importance, while nanotechnology has the potential to revolutionize various fields including medicine, nanoparticles form the potential for an entirely new lung health risk that it is necessary to take seriously into consideration by setting up and/or reinforcing adequate safety measures. PMID- 29324065 TI - Fatigue Risk Management in High-Risk Environments: A Call to Action. PMID- 29324064 TI - Interchangeability of Results From Computerized and Traditional Administration of the BIDR: Convenience Can Match Reality. AB - Although interchangeability of results across computer and paper modes of administration is commonly assumed, recent meta-analyses and individual studies continue to reveal mean differences in scores for measures of socially desirable responding (SDR). Results from these studies have also failed to include new methods of scoring and crucial aspects of scaling, reliability, validity, and administration emphasized in professional standards for assessment that are essential in establishing equivalence. We addressed these shortcomings in a comprehensive, repeated measures investigation for 6 ways of scoring the Balanced Inventory of Desirable Responding (BIDR), one of the most frequently administered companion measures of SDR in research and practice. Results for many previously unexamined, standards-driven aspects of scaling, reliability, and validity strongly supported the interchangeability of scores across modes of administration. Computer questionnaires also took considerably less time to complete and were overwhelmingly favored by respondents in relation to physical characteristics of the measures, appraisals of the the assessment experience, and perceived quality of information obtained. Collectively, these results highlight the importance of following professional standards when constructing and administering computerized assessments and the evolution of computer technology in providing viable, effective, and accepted platforms for administering and scoring the BIDR in numerous ways. PMID- 29324066 TI - Systematic Review and Meta-analysis of the Effects of Caffeine in Fatigued Shift Workers: Implications for Emergency Medical Services Personnel. AB - BACKGROUND: Emergency Medical Services (EMS) workers may experience fatigue as a consequence of shift work. We reviewed the literature to determine the impact of caffeine as a countermeasure to fatigue in EMS personnel and related shift workers. METHODS: We employed the GRADE methodology to perform a systematic literature review and search multiple databases for research that examined the impact of caffeine on outcomes of interest, such as patient and EMS personnel safety. For selected outcomes, we performed a meta-analysis of pooled data and reported the pooled effect in the form of a Standardized Mean Difference (SMD) with corresponding 95% confidence intervals. RESULTS: There are no studies that investigate caffeine use and its effects on EMS workers or on patient safety. Four of 8 studies in shift workers showed that caffeine improved psychomotor vigilance, which is important for performance. Caffeine decreased the number of lapses on a standardized test of performance [SMD = 0.75 (95% CI: 0.30 to 1.19), p = 0.001], and lessened the slowing of reaction time at the end of shifts [SMD = 0.52 (95% CI: 0.19 to 0.85); p = 0.002]. Finally, 2 studies reported that caffeine reduced sleep quality and sleep duration. CONCLUSIONS: Although the quality of evidence was judged to be low to moderate, when taken together, these studies demonstrate that caffeine can improve psychomotor performance and vigilance. However, caffeine negatively affects sleep quality and sleep duration. More systematic, randomized studies need to be conducted in EMS workers in order to address the critical outcomes of health and safety of EMS personnel and patients. The risk/benefit ratio of chronic caffeine use in shift workers is currently unknown. PMID- 29324067 TI - MAO inhibitors and their wider applications: a patent review. AB - INTRODUCTION: Monoamine oxidase (MAO) inhibitors, after the initial 'golden age', are currently used as third-line antidepressants (selective MAO-A inhibitors) or clinically enrolled as co-adjuvants for neurodegenerative diseases (selective MAO B inhibitors). However, the research within this field is always increasing due to their pivotal role in modulating synaptic functions and monoamines metabolism. Areas covered: In this paper, MAO inhibitors (2015-2017) are disclosed ordering all the patents according to their chemical scaffold. Structure-activity relationships (SARs) are extrapolated for the most investigated chemotypes (coumarins, pyrazole/oxazepinones, (hetero)arylamides). 108 Compounds are divided into two main groups: newly synthesized molecules and naturally-occurring metabolites. Finally, new therapeutic options are outlined to ensure a more complete view on the potential of these inhibitors. Expert opinion: New proposed MAO inhibitors are endowed with a marked isoform selectivity, with innovative therapeutic potential toward other targets (gliomas, inflammation, muscle dystrophies, migraine, chronic pain, pseudobulbar affect), and with a promising ability to address multi-faceted pathologies such as Alzheimer's disease. The increasing number of patents is analyzed collecting data from 2002 to 2017. PMID- 29324068 TI - Reliability and Validity of Survey Instruments to Measure Work-Related Fatigue in the Emergency Medical Services Setting: A Systematic Review. AB - BACKGROUND: This study sought to systematically search the literature to identify reliable and valid survey instruments for fatigue measurement in the Emergency Medical Services (EMS) occupational setting. METHODS: A systematic review study design was used and searched six databases, including one website. The research question guiding the search was developed a priori and registered with the PROSPERO database of systematic reviews: "Are there reliable and valid instruments for measuring fatigue among EMS personnel?" (2016:CRD42016040097). The primary outcome of interest was criterion-related validity. Important outcomes of interest included reliability (e.g., internal consistency), and indicators of sensitivity and specificity. Members of the research team independently screened records from the databases. Full-text articles were evaluated by adapting the Bolster and Rourke system for categorizing findings of systematic reviews, and the rated data abstracted from the body of literature as favorable, unfavorable, mixed/inconclusive, or no impact. The Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology was used to evaluate the quality of evidence. RESULTS: The search strategy yielded 1,257 unique records. Thirty-four unique experimental and non-experimental studies were determined relevant following full-text review. Nineteen studies reported on the reliability and/or validity of ten different fatigue survey instruments. Eighteen different studies evaluated the reliability and/or validity of four different sleepiness survey instruments. None of the retained studies reported sensitivity or specificity. Evidence quality was rated as very low across all outcomes. CONCLUSIONS: In this systematic review, limited evidence of the reliability and validity of 14 different survey instruments to assess the fatigue and/or sleepiness status of EMS personnel and related shift worker groups was identified. PMID- 29324069 TI - Evidence-Based Guidelines for Fatigue Risk Management in Emergency Medical Services. AB - BACKGROUND: Administrators of Emergency Medical Services (EMS) operations lack guidance on how to mitigate workplace fatigue, which affects greater than half of all EMS personnel. The primary objective of the Fatigue in EMS Project was to create an evidence-based guideline for fatigue risk management tailored to EMS operations. METHODS: Systematic searches were conducted from 1980 to September 2016 and guided by seven research questions framed in the Population, Intervention, Comparison, Outcome (PICO) framework. Teams of investigators applied inclusion criteria, which included limiting the retained literature to EMS personnel or similar shift worker groups. The expert panel reviewed summaries of the evidence based on the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology. The panel evaluated the quality of evidence for each PICO question separately, considered the balance between benefits and harms, considered the values and preferences of the targeted population, and evaluated the resource requirements/needs. The GRADE Evidence-to-Decision (EtD) Framework was used to prepare draft recommendations based on the evidence, and the Content Validity Index (CVI) was used to quantify the panel's agreement on the relevance and clarity of each recommendation. CVI scores for relevance and clarity were measured separately on a 1-4 scale to indicate consensus/agreement among panel members and conclusion of recommendation development. RESULTS: The EtD framework was applied to all 7 PICO questions, and the panel created 5 recommendations. PICO1: The panel recommends using fatigue/sleepiness survey instruments to measure and monitor fatigue in EMS personnel. PICO2: The panel recommends that EMS personnel work shifts shorter than 24 hours in duration. PICO3: The panel recommends that EMS personnel have access to caffeine as a fatigue countermeasure. PICO4: The panel recommends that, EMS personnel have the opportunity to nap while on duty to mitigate fatigue. PICO5: The panel recommends that EMS personnel receive education and training to mitigate fatigue and fatigue related risks. The panel referenced insufficient evidence as the reason for making no recommendation linked to 2 PICO questions. CONCLUSIONS: Based on a review of the evidence, the panel developed a guideline with 5 recommendations for fatigue risk management in EMS operations. PMID- 29324070 TI - Does Implementation of Biomathematical Models Mitigate Fatigue and Fatigue related Risks in Emergency Medical Services Operations? A Systematic Review. AB - BACKGROUND: Work schedules like those of Emergency Medical Services (EMS) personnel have been associated with increased risk of fatigue-related impairment. Biomathematical modeling is a means of objectively estimating the potential impacts of fatigue on performance, which may be used in the mitigation of fatigue related safety risks. In the context of EMS operations, our objective was to assess the evidence in the literature regarding the effectiveness of using biomathematical models to help mitigate fatigue and fatigue-related risks. METHODS: A systematic review of the evidence evaluating the use of biomathematical models to manage fatigue in EMS personnel or similar shift workers was performed. Procedures proposed by the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology were used to summarize and rate the certainty in the evidence. Potential bias attached to retained studies was documented using the Cochrane Collaboration's Risk of Bias tool for experimental studies. RESULTS: The literature search strategy, which focused on both EMS personnel and non-EMS shift workers, yielded n = 2,777 unique records. One paper, which investigated non-EMS shift workers, met inclusion criteria. As part of a larger effort, managers and dispatchers of a trucking operation were provided with monthly biomathematical model analyses of predicted fatigue in the driver workforce, and educated on how they could reduce predicted fatigue by means of schedule adjustments. The intervention showed a significant reduction in the number and cost of vehicular accidents during the period in which biomathematical modeling was used. The overall GRADE assessment of evidence quality was very low due to risk of bias, indirectness, imprecision, and publication bias. CONCLUSIONS: This systematic review identified no studies that investigated the impact of biomathematical models in EMS operations. Findings from one study of non-EMS shift workers were favorable toward use of biomathematical models as a fatigue mitigation scheduling aid, albeit with very low quality of evidence pertaining to EMS operations. We propose three focus areas of research priorities that, if addressed, could help better elucidate the utility and impact of biomathematical models as a fatigue-mitigation tool in the EMS environment. PMID- 29324071 TI - Effect of Task Load Interventions on Fatigue in Emergency Medical Services Personnel and Other Shift Workers: A Systematic Review. AB - BACKGROUND: Modifying the task load of Emergency Medical Services (EMS) personnel may mitigate fatigue, sleep quality and fatigue related risks. A review of the literature addressing task load interventions may benefit EMS administrators as they craft policies related to mitigating fatigue. We conducted a systematic review of the peer-reviewed literature to address the following question: "In EMS personnel, do task load interventions mitigate fatigue, mitigate fatigue-related risks, and/or improve sleep?" (PROSPERO 2016:CRD42016040114). METHODS: We performed a systematic review of the literature that described use of randomized controlled trials, quasi-experimental studies, and observational study designs. We retained and reviewed research that involved EMS personnel or similar shift worker groups 18 years of age and older. Studies of 'healthy volunteers' and non shift worker populations were excluded. Studies were included where the methodology of the study implied a theoretical framework of task load (or workload) affecting fatigue, and then fatigue related outcomes. Outcomes of interest included personnel safety, patient safety, personnel performance, acute fatigue, and cost to system. We used the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology to summarize findings and assess quality of evidence from very low to high quality. RESULTS: The search strategy yielded 3,394 unique records resulting in 58 records included as potentially eligible. An additional 69 studies were reviewed in full following searches of bibliographies. We detected wide variation in the description and measurement of task load in the retained and excluded research. Among 127 potentially relevant studies reviewed in full, five were judged eligible. None of the retained studies reported findings germane to personnel safety, patient safety, or cost to system. We judged most studies to have serious or very serious risk of bias. CONCLUSIONS: The effect of task load interventions on fatigue, fatigue-related risks, and/or sleep quality was not estimable and the overall quality of evidence was judged low or very low. There was considerable heterogeneity in how task load was defined and measured. PMID- 29324073 TI - Rapid Improvement on a Temporal Attention Task within a Single Session of High frequency Transcranial Random Noise Stimulation. AB - This study explored the modulatory effects of high-frequency transcranial random noise stimulation (tRNS) on visual sensitivity during a temporal attention task. We measured sensitivity to different onset asynchronies during a temporal order judgment task as a function of active stimulation relative to sham. While completing the task, participants were stimulated bilaterally for 20 min over either the TPJ or the human middle temporal area. We hypothesized that tRNS over the TPJ, which is critical to the temporal attention network, would selectively increase cortical excitability and induce cognitive training-like effects on performance, perhaps more so in the left visual field [Matthews, N., & Welch, L. Left visual field attentional advantage in judging simultaneity and temporal order. Journal of Vision, 15, 1-13, 2015; Romanska, A., Rezlescu, C., Susilo, T., Duchaine, B., & Banissy, M. J. High-frequency transcranial random noise stimulation enhances perception of facial identity. Cerebral Cortex, 25, 4334 4340, 2015]. In Experiment 1, we measured the performance of participants who judged the order of Gabors temporally imbedded in flickering discs, presented with onset asynchronies ranging from -75 msec (left disc first) to +75 msec (right disc first). In Experiment 2, we measured whether each participant's temporal sensitivity increased with stimulation by using temporal offsets that the participant initially perceived as simultaneous. We found that parietal cortex stimulation temporarily increased sensitivity on the temporal order judgment task, especially in the left visual field. Stimulation over human middle temporal area did not alter cortical excitability in a way that affected performance. The effects were cumulative across blocks of trials for tRNS over parietal cortex but dissipated when stimulation ended. We conclude that single session tRNS can induce temporary improvements in behavioral sensitivity and that this shows promising insight into the relationship between cortical stimulation and neural plasticity. PMID- 29324072 TI - Alpha Oscillations during Incidental Encoding Predict Subsequent Memory for New "Foil" Information. AB - People can employ adaptive strategies to increase the likelihood that previously encoded information will be successfully retrieved. One such strategy is to constrain retrieval toward relevant information by reimplementing the neurocognitive processes that were engaged during encoding. Using EEG, we examined the temporal dynamics with which constraining retrieval toward semantic versus nonsemantic information affects the processing of new "foil" information encountered during a memory test. Time-frequency analysis of EEG data acquired during an initial study phase revealed that semantic compared with nonsemantic processing was associated with alpha decreases in a left frontal electrode cluster from around 600 msec after stimulus onset. Successful encoding of semantic versus nonsemantic foils during a subsequent memory test was related to decreases in alpha oscillatory activity in the same left frontal electrode cluster, which emerged relatively late in the trial at around 1000-1600 msec after stimulus onset. Across participants, left frontal alpha power elicited by semantic processing during the study phase correlated significantly with left frontal alpha power associated with semantic foil encoding during the memory test. Furthermore, larger left frontal alpha power decreases elicited by semantic foil encoding during the memory test predicted better subsequent semantic foil recognition in an additional surprise foil memory test, although this effect did not reach significance. These findings indicate that constraining retrieval toward semantic information involves reimplementing semantic encoding operations that are mediated by alpha oscillations and that such reimplementation occurs at a late stage of memory retrieval, perhaps reflecting additional monitoring processes. PMID- 29324074 TI - Synchronization of Electrophysiological Responses with Speech Benefits Syntactic Information Processing. AB - In auditory neuroscience, electrophysiological synchronization to low-level acoustic and high-level linguistic features is well established-but its functional purpose for verbal information transmission is unclear. Based on prior evidence for a dependence of auditory task performance on delta-band oscillatory phase, we hypothesized that the synchronization of electrophysiological responses at delta-band frequency to the speech stimulus serves to implicitly align neural excitability with syntactic information. The experimental paradigm of our auditory EEG study uniformly distributed morphosyntactic violations across syntactic phrases of natural sentences, such that violations would occur at points differing in linguistic information content. In support of our hypothesis, we found behavioral responses to morphosyntactic violations to increase with decreasing syntactic information content-in significant correlation with delta band phase, which had synchronized to our speech stimuli. Our findings indicate that rhythmic electrophysiological synchronization to the speech stream is a functional mechanism that may align neural excitability with linguistic information content, optimizing language comprehension. PMID- 29324075 TI - Screening of veterinary drug residues in food by LC-MS/MS. Background and challenges. AB - Regulatory agencies and government authorities have established maximum residue limits (MRL) in various food matrices of animal origin for supporting governments and food operators in the monitoring of veterinary drug residues in the food chain, and ultimately in the consumer's plate. Today, about 200 veterinary drug residues from several families, mainly with antibiotic, antiparasitic or antiinflammatory activities, are regulated in a variety of food matrices such as milk, meat or egg. This article provides a review of the regulatory framework in milk and muscle including data from Codex Alimentarius, Europe, the U.S.A., Canada and China for about 220 veterinary drugs. The article also provides a comprehensive overview of the challenge for food control, and emphasizes the pivotal role of liquid chromatography-mass spectrometry (LC-MS), either in tandem with quadrupoles (LC-MS/MS) or high resolution MS (LC-HRMS), for ensuring an adequate consumer protection combined with an affordable cost. The capability of a streamlined LC-MS/MS platform for screening 152 veterinary drug residues in a broad range of raw materials and finished products is highlighted in a production line perspective. The rationale for a suite of four methods intended to achieve appropriate performance in terms of scope and sensitivity is presented. Overall, the platform encompasses one stream for the determination of 105 compounds in a run (based on acidic QuEChERS-like), plus two streams for 23 beta-lactams (alkaline QuEChERS-like) and 10 tetracyclines (low-temperature partitioning), respectively, and a dedicated stream for 14 aminoglycosides (molecularly imprinted polymer). PMID- 29324076 TI - Brain Functional Changes before, during, and after Clinical Pain. AB - This study used an emerging brain imaging technique, functional near-infrared spectroscopy (fNIRS), to investigate functional brain activation and connectivity that modulates sometimes traumatic pain experience in a clinical setting. Hemodynamic responses were recorded at bilateral somatosensory (S1) and prefrontal cortices (PFCs) from 12 patients with dentin hypersensitivity in a dental chair before, during, and after clinical pain. Clinical dental pain was triggered with 20 consecutive descending cold stimulations (32 degrees to 0 degrees C) to the affected teeth. We used a partial least squares path modeling framework to link patients' clinical pain experience with recorded hemodynamic responses at sequential stages and baseline resting-state functional connectivity (RSFC). Hemodynamic responses at PFC/S1 were sequentially elicited by expectation, cold detection, and pain perception at a high-level coefficient (coefficients: 0.92, 0.98, and 0.99, P < 0.05). We found that the pain ratings were positively affected only at a moderate level of coefficients by such sequence of functional activation (coefficient: 0.52, P < 0.05) and the baseline PFC-S1 RSFC (coefficient: 0.59, P < 0.05). Furthermore, when the dental pain had finally subsided, the PFC increased its functional connection with the affected S1 orofacial region contralateral to the pain stimulus and, in contrast, decreased with the ipsilateral homuncular S1 regions ( P < 0.05). Our study indicated for the first time that patients' clinical pain experience in the dental chair can be predicted concomitantly by their baseline functional connectivity between S1 and PFC, as well as their sequence of ongoing hemodynamic responses. In addition, this linked cascade of events had immediate after-effects on the patients' brain connectivity, even when clinical pain had already ceased. Our findings offer a better understating of the ongoing impact of affective and sensory experience in the brain before, during, and after clinical dental pain. PMID- 29324077 TI - Screening of 23 beta-lactams in foodstuffs by LC-MS/MS using an alkaline QuEChERS like extraction. AB - A fast and robust high performance LC-MS/MS screening method was developed for the analysis of beta-lactam antibiotics in foods of animal origin: eggs, raw milk, processed dairy ingredients, infant formula, and meat- and fish-based products including baby foods. QuEChERS extraction with some adaptations enabled 23 drugs to be simultaneously monitored. Screening target concentrations were set at levels adequate to ensure compliance with current European, Chinese, US and Canadian regulations. The method was fully validated according to the European Community Reference Laboratories Residues Guidelines using 93 food samples of different composition. False-negative and false-positive rates were below 5% for all analytes. The method is adequate for use in high-routine laboratories. A 1 year study was additionally conducted to assess the stability of the 23 analytes in the working standard solution. PMID- 29324078 TI - What an Evidence-based Guideline for Fatigue Risk Management Means for Us: Statements From Stakeholders. PMID- 29324079 TI - Shorter Versus Longer Shift Durations to Mitigate Fatigue and Fatigue-Related Risks in Emergency Medical Services Personnel and Related Shift Workers: A Systematic Review. AB - BACKGROUND: This study comprehensively reviewed the literature on the impact of shorter versus longer shifts on critical and important outcomes for Emergency Medical Services (EMS) personnel and related shift worker groups. METHODS: Six databases (e.g., PubMed/MEDLINE) were searched, including one website. This search was guided by a research question developed by an expert panel a priori and registered with the PROSPERO database of systematic reviews (2016:CRD42016040099). The critical outcomes of interest were patient safety and personnel safety. The important outcomes of interest were personnel performance, acute fatigue, sleep and sleep quality, retention/turnover, long-term health, burnout/stress, and cost to system. Screeners worked independently and full-text articles were assessed for relevance. Data abstracted from the retained literature were categorized as favorable, unfavorable, mixed/inconclusive, or no impact toward the shorter shift duration. This research characterized the evidence as very low, low, moderate, or high quality according to the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) methodology. RESULTS: The searched yielded n = 21,674 records. Of the 480 full-text articles reviewed, 100 reported comparisons of outcomes of interest by shift duration. We identified 24 different shift duration comparisons, most commonly 8 hours versus 12 hours. No one study reported findings for all 9 outcomes. Two studies reported findings linked to both critical outcomes of patient and personnel safety, 34 reported findings for one of two critical outcomes, and 64 did not report findings for critical outcomes. Fifteen studies were grouped to compare shifts <24 hours versus shifts >=24 hours. None of the findings for the critical outcomes of patient and personnel safety were categorized as unfavorable toward shorter duration shifts (<24 hours). Nine studies were favorable toward shifts <24 hours for at least one of the 7 important outcomes, while findings from one study were categorized as unfavorable. Evidence quality was low or very low. CONCLUSIONS: The quality of existing evidence on the impact of shift duration on fatigue and fatigue-related risks is low or very low. Despite these limitations, this systematic review suggests that for outcomes considered critical or important to EMS personnel, shifts <24 hours in duration are more favorable than shifts >=24 hours. PMID- 29324081 TI - Determination of endogenous concentrations of nitrites and nitrates in different types of cheese in the United States: method development and validation using ion chromatography. AB - Nitrites and nitrates can be present in dairy products from both endogenous and exogenous sources. In the European Union (EU), 150 mg kg-1 of nitrates are allowed to be added to the cheese milk during the manufacturing process. The CODEX General Standard for Food Additives has a maximum permitted level of 50 mg kg-1 residue in cheese, while in the United States (U.S.) nitrates are unapproved for use as food additives in cheese. In order to be able to investigate imported cheeses for nitrates intentionally added as preservatives and the endogenous concentrations of nitrates and nitrites present in cheeses in the U.S. marketplace, a method was developed and validated using ion chromatography with conductivity detection. A market sampling of cheese samples purchased in the Washington DC metro area was performed. In 64 samples of cheese, concentrations ranged from below the method detection limit (MDL) to 26 mg kg-1 for nitrates and no concentrations of nitrites were found in any of the cheese samples above the MDL of 0.1 mg kg-1. A majority of the samples (93%) had concentrations below 10 mg kg-1, which indicate the presence of endogenous nitrates. The samples with concentrations above 10 mg kg-1 were mainly processed cheese spread, which can contain additional ingredients often of plant-based origin. These ingredients are likely the cause of the elevated nitrate concentrations. The analysis of 12 additional cheese samples that are liable to the intentional addition of nitrates, 9 of which were imported, indicated that in this limited study, concentrations of nitrate in the U.S.-produced cheeses did not differ from those in imported samples. PMID- 29324080 TI - Risk assessment of dietary exposure to perchlorate for the Austrian population. AB - Perchlorate is frequently found as contaminant in a variety of food. Based on analytical data of perchlorate occurrence in food products from the Austrian market, this study calculated dietary perchlorate exposure of the Austrian population for the three age classes of adults, children and infants. Furthermore, a detailed risk assessment was conducted based on the tolerable daily intake (TDI) of 0.3 ug/kg body weight/day, established by the European Food Safety Authority in 2014. Calculations of a scenario of average food consumption did not indicate elevated health risks by dietary perchlorate uptake. Exposure estimates reached only 12%, 26% and 24% of the TDI for adults, children and infants, respectively. However, in a scenario of high consumption, the TDI was exceeded by all age classes with 132%, 161% and 156%. The major cause for this exceedance is the comparatively high perchlorate contamination of spinach, but also other leaf vegetables, legumes and pineapples, leading to elevated exposure of high consumers. Our calculations reveal that the current provisional intra Union trade reference level for perchlorate in spinach of 0.2 mg/kg, advocated by the European Commission, is not sufficient to protect high consumers against possible health risks. In order to reduce health risks to a tolerable level for all consumers, lowering of the regulatory maximum perchlorate concentrations is indicated. Moreover, a generally diversified diet can also counteract excessive exposure to perchlorate as well as to other harmful food contaminants. PMID- 29324082 TI - Sensory dissociation in chronic low back pain: Two case reports. AB - Patients with chronic low back pain often report that they do not perceive their painful back accurately. Previous studies confirmed that sensory dissociation and/or discrepancy between perceived body image and actual size is one of the specific traits of patients with chronic pain. Current approaches for measuring sensory dissociation are limited to two-point-discrimination or rely on pain drawings not allowing for quantitative analysis. This case study reports the sensory dissociation of two cases with chronic low back pain using a recently published test (point-to-point-test (PTP)) and a newly developed test (two-point estimation (TPE)). Both patients mislocalized tactile stimuli delivered to the painful location compared to non-painful locations (PTP test). In addition, both patients perceived their painful lumbar region differently from non-painful sites above and below and contralateral to the painful site. TPE data showed two distinct clinical patterns of sensory dissociation: one patient perceived the two point distance in the painful area as expanded, while the other patient perceived it as shrunk. The latter pattern of sensory dissociation (i.e., pattern shrunk) is likely to respond to sensory training. Whether enlarged patterns of sensory dissociation are more resistant to treatment remains unknown but would explain the low effectiveness of previous studies using sensory training in chronic low back pain populations. Subgrouping patients according to their sensory discrimination pattern could contribute to the choice and effectiveness of the treatment approach. PMID- 29324083 TI - Effects of Napping During Shift Work on Sleepiness and Performance in Emergency Medical Services Personnel and Similar Shift Workers: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Scheduled napping during work shifts may be an effective way to mitigate fatigue-related risk. This study aimed to critically review and synthesize existing literature on the impact of scheduled naps on fatigue-related outcomes for EMS personnel and similar shift worker groups. METHODS: A systematic literature review was performed of the impact of a scheduled nap during shift work on EMS personnel or similar shift workers. The primary (critical) outcome of interest was EMS personnel safety. Secondary (important) outcomes were patient safety; personnel performance; acute states of fatigue, alertness, and sleepiness; indicators of sleep duration and/or quality; employee retention/turnover; indicators of long-term health; and cost to the system. Meta analyses were performed to evaluate the impact of napping on a measure of personnel performance (the psychomotor vigilance test [PVT]) and measures of acute fatigue. RESULTS: Of 4,660 unique records identified, 13 experimental studies were determined relevant and summarized. The effect of napping on reaction time measured at the end of shift was small and non-significant (SMD 0.12, 95% CI -0.13 to 0.36; p = 0.34). Napping during work did not change reaction time from the beginning to the end of the shift (SMD -0.01, 95% CI -25.0 to 0.24; p = 0.96). Naps had a moderate, significant effect on sleepiness measured at the end of shift (SMD 0.40, 95% CI 0.09 to 0.72; p = 0.01). The difference in sleepiness from the start to the end of shift was moderate and statistically significant (SMD 0.41, 95% CI 0.09 to 0.72; p = 0.01). CONCLUSIONS: Reviewed literature indicated that scheduled naps at work improved performance and decreased fatigue in shift workers. Further research is required to identify the optimal timing and duration of scheduled naps to maximize the beneficial outcomes. PMID- 29324084 TI - Protein association of beta-N-methylamino-L-alanine in Triticum aestivum via irrigation. AB - Bioaccumulation of several cyanotoxins has been observed in numerous food webs. More recently, the neurotoxic, non-proteinogenic amino acid beta-N-methylamino-L alanine (BMAA) was shown to biomagnify in marine food webs. It was thus necessary to assess whether a human exposure risk via a terrestrial food source could exist. As shown for other cyanotoxins, spray irrigation of crop plants with cyanobacterial bloom-contaminated surface water poses the risk of toxin transfer into edible plant parts. Therefore, in the present study, we evaluated a possible transfer of BMAA via spray irrigation into the seeds of one of the world's most widely cultivated crop plants, Triticum aestivum. Wheat plants were irrigated with water containing 10 ug L-1 BMAA until they reached maturity and seed-bearing stage (205 days). Several morphological characteristics, such as germination rate, number of roots per seedling, length of primary root and cotyledon, and diameter of the stems were evaluated to assess the effects of chronic exposure. After 205 days, BMAA bioaccumulation was quantified in roots, shoots, and mature seeds of T. aestivum. No adverse morphology effects were observed and no free intracellular BMAA was detected in any of the exposed plants. However, in mature seeds, protein-associated BMAA was detected at 217 +/- 150 ng g FW-1; significantly more than in roots and shoots. This result demonstrates the unexpected bioaccumulation of a hydrophilic compound and highlights the demand to specify in addition to limit values for drinking water, tolerable daily intake rates for the cyanobacterial-neurotoxin BMAA. PMID- 29324085 TI - Hyperparasitism of an Avian Ectoparasitic Hippoboscid Fly, Ornithomya anchineuria, by the Mite, Myialges Cf. Borealis, in Alberta, Canada. AB - Hippoboscid flies (Diptera: Hippoboscidae) include species that are ectoparasites of birds in the Northern Hemisphere, but little is known regarding their taxonomy, parasites, avian host associations, or geographical distribution in North America. In late August of 2013 and 2014, we collected hippoboscid flies from live birds trapped in mist nets as part of a banding study in Cypress Hills Interprovincial Park in southeastern Alberta, Canada. A total of 113 birds comprising 9 species was examined in 2013. Of these, 18 individuals were infested with 1-3 Ornithomya anchineuria Speiser (n = 22 flies; prevalence = 15.9%). Eight of these flies carried 1-8 adult female epidermoptid mites anchored to their ventral, posterior abdomens. Each female was associated with clusters of up to 30 stalked eggs. The first pair of tarsi on adult female mites was highly modified as anchors, indicating permanent attachment through the host cuticle. Morphological traits identified these mites as Myialges cf. borealis Mironov, Skirnisson, Thorarinsdottier and Nielsen. Cytochrome c oxidase subunit 1 ( COX1) gene sequences obtained for 2 mites were distinct from those previously reported for species of Myialges, being most similar to Myialges trinotoni Cooreman. The paucity of available gene sequences for Myialges and related genera of epidermoptid mites prevents any further conclusions regarding taxonomy. These findings extend previous reports of O. anchineuria from Pacific and Atlantic coasts of Canada inland to the central migratory flyway of the Northern Great Plains and expand the limited information available for Myialges spp. PMID- 29324086 TI - How Robust is the Influence of Causal Explanation on Clinical Judgments? Assessments in Structured Clinical Interviews. AB - When causal life-event explanations for disorder symptoms are available, clinicians tend to explain away those symptoms (Ahn, Novick, & Kim, 2003 ; Meehl, 1973 ), eschewing formal diagnostic guidelines such as the DSM-5 (American Psychiatric Association, 2013 ). We asked whether this effect is attenuated in the context of a structured diagnostic clinical interview procedure, which deliberately directs evaluators' attention to symptoms alone, or whether it is robust enough to continue to emerge. Across two experiments, lay evaluators given causal life-event explanations for disordered behaviors gave them lower judgments of abnormality and need for treatment compared to evaluators not given such explanations, regardless of whether they used a structured clinical interview. Thus, causal life-event explanations may have significant impact on clinical evaluations regardless of the mode of assessment. Implications for the clinical utility of structured interviews and the role of life-event context in diagnosis and classification are discussed. PMID- 29324087 TI - Spousal age differences and violence against women in Nigeria and Tanzania. AB - Much research has been conducted on the extent of violence against women (VAW) and the underlying risk factors associated with VAW. Unfortunately, research into the implications of spousal age-related factors for VAW remains underexplored. This study explored the implications of spousal age gaps for VAW in Tanzania and Nigeria. Data from the 2008 Nigeria (n = 33,385) and 2010 Tanzania Demographic and Health Surveys (DHS) (n = 10,139) for women aged 15-49 years were used. We used univariate and multivariate statistical analyses to assess the relationship between VAW and spousal age-related contextual factors. Nearly half (44.00%) of Tanzanian participants and 42.48% of Nigerian participants reported having experienced VAW. Results from the multiple logistic regression models across the two countries showed that a spousal age gap of more than 15 years, region of residence, lower age at marriage, and lower educational attainment were statistically associated with VAW. The contexts in which women live are associated with their experiencing violence. Less educated women and young women were more likely to report having experienced partner violence compared to their older, more educated counterparts in both countries. PMID- 29324088 TI - Validation of a rapid lateral flow method for the detection of cows' milk in water buffalo, sheep or goat milk. AB - For many years, the adulteration of milk from sheep, goats or water buffalos with cows' milk has been a widespread practice due to the higher cost of milk from those other species. Because of this, great concern has been shown by many Protected Designation of Origin councils that have to assure the quality and genuineness of the cheese produced by their associates. Therefore, the whole production chain needs analytical tools that allow the control of potential adulteration. Rapid methods to be used in the field are scarce and have not been validated according to international guidelines. The aim of this work has been to validate a rapid test based on lateral flow immunochromatography to detect cows' milk in milk from other species, including buffalo's milk, according to AOAC guidelines. No false-positive result was found after analysing 146 known negative samples from individual animals. The lowest level of adulteration with a Probability of Detection (POD) of 1.00 (confidence interval between 0.94 and 1.00) was found at 0.5% of cows' milk. This level is below the current EU allowed level of cows' milk, set at 1%. Variations in the time of assay, volume of the analysis buffer and different batches of the test were evaluated to detect any effect on the false-positive rate or on the limit of detection of the test. The effects of compositional factors (such as high level of fat, protein and somatic cell counts) were also evaluated. The new rapid test to detect cows' milk in milk from other species is shown to be an adequate tool to control milk quality in routine analysis. This kind of test is very easy to use and it can be performed by untrained staff during milk collection at the farm or upon arrival at dairies. PMID- 29324089 TI - Development and content validation of a questionnaire to assess moral distress among social workers in long-term care facilities. AB - OBJECTIVE: Despite the significance of ethical issues faced by social workers, research on moral distress among social workers has been extremely limited. The aim of the current study is to describe the development and content validation of a unique questionnaire to measure moral distress among social workers in long term care facilities for older adults in Israel. METHODS: The construction of the questionnaire was based on a secondary analysis of a qualitative study that addressed the moral dilemma of social workers in nursing homes in Israel. A content validation included review and evaluation by two experts, a cognitive interview with a nursing home social worker, and three focus groups of experts and the target population. RESULTS: The initial questionnaire consisted of 25 items. After the content validation process the questionnaire in its final version, consisted of 17 items and included two scales, measuring the frequency of morally loaded events and the intensity of distress that followed them. CONCLUSIONS: We believe that the questionnaire can contribute by broadening and deepening ethics discourse and research, with regard to social workers' obligation dilemmas and conflicts. PMID- 29324090 TI - Introducing the International Palliative Nursing Network. AB - During the Ninth International Cancer Nursing Conference held in Brighton last year, an evening symposium was hosted by Alison Ferguson and Jeanette Webber on behalf of the Royal College of Nursing Palliative Nursing Group in the United Kingdom. The purpose of the meeting was to enable delegates to explore the possibility of developing an International Palliative Nursing Network (IPNN). Thirty two nurses from fifteen countries attended the symposium and there was a strong consensus that the development of the Network was both timely and viable. PMID- 29324091 TI - New challenges for palliative nursing. AB - Editorials by Jeanette Webber and Libby White (IJPN 2(3)) explored threats to both the nursing profession and palliative nursing as the health system faces the reality of limited resources and expanding client needs. I wish to pick up on these issues in the light of changes proposed for palliative care in one Australian state, Victoria. My central argument is that to secure the future of palliative nursing, efforts must focus on demonstrating clearly the value and contribution of nurses to client and family outcomes. Why do I think we are challenged to do this? PMID- 29324092 TI - Action research in a palliative care education programme. AB - Using an action research approach, the author worked with district nurses to enable them to identify their own palliative care education needs and to plan the appropriate education programme, with reflective practice enabling the identification of further education needs. This approach overcame some of the problems of pre-planned, unresponsive palliative care education programmes. Both the learning and the action research approach are developed through continual reflective practice, which reduces the theory-practice gap as theory is generated from practice. The knowledge gained from reflective practice is as relevant to nursing as the knowledge derived from academic theories. Reflective practice within palliative care education facilitates learning in a relatively new field of practice and generates a greater understanding of the complexities of palliative care and associated education needs. PMID- 29324093 TI - The net is out there. AB - This paper seeks to introduce the resources available via the Internet to improve information and education provision within palliative care. It describes well established online sources and how they may be found, introduces new terms related to Internet use and describes some of the equipment required for Internet access. PMID- 29324094 TI - Quality of life during high dose chemotherapy for breast cancer. AB - Asmall sample of women (n=9) receiving high dose chemotherapy for advanced breast cancer were asked to complete a quality of life measure (QLQ-C30) at three time points: prior to, during and post treatment. Despite the onset of severe side effects, no significant deterioration in quality of life was recorded in terms of physical, role, emotional, cognitive or social functioning. The role of the clinical nurse specialist (CNS) in providing continuity of care as well as support and information for these women is discussed. Further work in this area with larger sample sizes is needed to confirm these findings and to further investigate the role of the CNS in this context. PMID- 29324095 TI - Exploring the nature and impact of fatigue in advanced cancer. AB - This paper offers an insight into the nature and impact of fatigue through the triadic perceptions of patients with advanced cancer, family members or friends, and health care professionals involved with their care. Their views were accessed through a case study undertaken at a cancer centre and funded by Macmillan Cancer Relief. The aim was to identify aspects of the experience that may be amenable to future nursing intervention. PMID- 29324096 TI - Whom to help? An exploration of the assessment of grief. AB - Palliative care, and the nursing care associated with it, includes the time around bereavement. Assessment of whether people are at risk of adverse bereavement consequences or suffer such consequences during their time of grief is important. Such assessment, which palliative care nurses are ideally placed to perform, can target those who need more support and intervention. This review investigates factors which it is important to recognise during nursing assessment of risk and outcome, with particular emphasis on the use of published tools. Three main recommendations are made: for provision of education about grief assessment for nurses; for more careful choosing and use of assessment tools; and for careful consideration of timing of assessment. PMID- 29324097 TI - Patient management and docetaxel. AB - Potent new drugs such as docetaxel (Taxotere(r)) will alter our perspective on advanced breast cancer, allowing significant disease responses and symptom palliation in many patients. The toxicities associated with docetaxel are generally predictable and manageable and usually reversible. Docetaxel is suitable for use in the outpatient setting. This report describes early experience with the drug in a nurse-assisted day case chemotherapy clinic at the Velindre NHS Trust Hospital and offers practical guidance on the prevention and handling of side-effects. PMID- 29324098 TI - Dehydration and the dying patient. AB - The management of dehydration in the terminally ill is a complex and emotive issue. Some health care professionals contend that a reduced fluid intake may result in dehydration which is both painful and distressing for the patient. Conversely, others suggest that artificial hydration has not been proven to benefit dying patients and may even add to their distress both physically and psychologically. These benefits and burdens are also of great concern to the relatives of dying patients and the health professionals who care for them. This paper reviews the literature concerning the pathophysiology of dehydration and discusses the effects of dehydration on dying patients. PMID- 29324099 TI - Palliative care services and settings: comparing care. AB - The focus of this project was to review palliative care literature on services and settings to establish whether they meet needs of patients and expectations of care providers. In the first part of this two-part article, issues such as the actual and preferred location of death, the quality of care given and comparison of different care settings providing palliative care are identified. The studies were fairly consistent in the information provided regarding care for the terminally ill patient. Primarily, hospice and hospice-based home care teams emerged as the providers of best care. The literature highlighted the fact that dying is a complex process which hinders researchers by making measurement difficult; consequently research assessing the effectiveness of palliative care has been limited. Since palliative care is multi-dimensional, it cannot be easily encompassed by one means of assessment and results gained in one care setting are not necessarily applicable to others. Given the variety of services available, purchasers, providers and users need to know for which patients hospice is most effective and which care models work best. There is therefore a need to design and carry out studies which advance the understanding of dying and the care that will influence this process. PMID- 29324100 TI - New innovative treatment in metastatic colorectal cancer. AB - Campto is a useful new agent in the treatment of colorectal cancer that can offer good quality palliative care for many metastatic colorectal cancer patients who have failed 5-FU. The key to successful treatment with Campto is to prescribe it for patients with a good performance status and without bulky disease. PMID- 29324101 TI - Beyond Hippocrates: ethics in palliative care. AB - Doctors and nurses work together in the care of patients but the practice of nursing has a different emphasis from that of medicine. Because of the close working relationship, nursing has historically adopted a traditional biomedical view to understand practice and assist in decision making. In this article, the author argues that the traditional biomedical perspective does not provide a framework to explain the unique relationships that develop between nurses and their patients. In particular, the wholehearted adoption of bioethics creates a foundation for collaboration with doctors but does not allow nurses to articulate their unique ethical practice. An argument is presented for the nursing discipline to explore the ethic of care as a framework for the ethical analysis of clinical nursing practice. Palliative care nurses are well placed to promote and research the ethic of care. PMID- 29324102 TI - For whenever I am weak, I am strong.... AB - A large scale empirical study concerning spiritual pain at the end of life was set up by a multi-disciplinary group of palliative care specialists in Flanders, Belgium. All Flemish speaking palliative care health workers were sent a questionnaire concerning spiritual/religious needs, care and growth. This paper focuses on issues relating to spiritual needs and growth of the caregivers. Although respondents considered the ability to identify personal spiritual needs as an important criterion for offering good spiritual care, in-depth analysis suggests a considerable gap between theoretical insight and daily practice. Findings advocate greater awareness and assertiveness among caregivers regarding their own spiritual experiences. A structural implementation of supervision to address the hidden spiritual agenda of the palliative team may need to pre-empt systems that teach how to respond more adequately to patients' spiritual needs. PMID- 29324103 TI - Directions in spirituality: an introduction to the theme. AB - When, in 1995, the Editorial Board discussed the subject of spirituality it became clear that those of us assembled had very different perceptions of this intriguing concept. Spiritual pain, angst, search for meaning, faith, hope, humanism and the power of love, all sprang to people's lips. It was abundantly clear that, despite the myriad opinions which arose, we were committed to a common aim. PMID- 29324104 TI - Spirituality, language and depth of reality. AB - This paper explores the potential for patients to express spiritual concerns other than through a religious vocabulary. The spiritual is presented as an indivisible dimension rather than a compartment of existence and spiritual expressions are regarded as intertwined with autobiography, and attempts to discover ultimate meaning in life's events. It is argued that metaphor and symbol may reveal truths as compelling as those disclosed by the natural sciences and that multiple layers of meaning exist in all human activity and expression. Professionals are invited to reflect upon the authenticity of their communication with patients, for the simplest act of care may be deeply significant when a patient feels that their own sense of reality has been recognised. PMID- 29324105 TI - Caring for dying Buddhists. AB - This paper provides information on how to offer help and support to Buddhists who are seriously ill or dying at home, in hospitals, hospices or nursing homes. It begins with an outline of Buddhism, indicating its main teachings and practices. This provides the background for a number of practical suggestions that will help non-Buddhist carers to understand and, where possible, to meet the spiritual needs of their Buddhist patients as death approaches. In the final part of the paper, the work of The Buddhist Hospice Trust is outlined. PMID- 29324106 TI - The nurse's role in assessing and responding to patients' spiritual needs. AB - The spiritual dimension of health care is becoming increasingly prominent, particularly in terminal care. It is not always clear, however, what spiritual needs are or who has responsibility for spiritual care. The first part of this paper takes the form of a literature review which examines the spiritual dimension and spiritual need. Spiritual needs, which may be particularly acute during terminal illness, are considered broader than religious needs and include the need for meaning, purpose, fulfilment, hope/will to live, and belief and faith in self, others and God. The role of the nurse in assessing and responding to patients' spiritual needs is addressed in the second part of the paper, with specific reference to the author's doctoral study. There is indication from this study that certain factors related to the patient, nurse, environment and other professionals may hinder the fulfilment of patients' spiritual needs. By addressing these factors it may be possible to improve spiritual care and therefore the quality of dying patients' remaining days. PMID- 29324107 TI - Organisational structures and personal spiritual belief. AB - This paper is based on the author's experience of working with NHS chaplains who may or may not have worked in palliative care areas. 'A Framework for Spiritual, Faith and Related Pastoral Care' (1995), developed in response to 'The Patient's Charter' (Department of Health (DoH) 1991) provides much of the material that underpins this paper. While certain material within this paper relates directly to palliative care, the main thrust concerns the principles that sustain good organisational practice when trying to meet the increasingly diverse spiritual needs of patients. The Framework paper on which this is based recognises the major changes that have occurred in the nature of care delivery and, therefore, the way in which traditional approaches to chaplaincy have been modified. This paper outlines a number of strategies that can be pursued to facilitate this change and concludes with some specific observations about the significance of change for the palliative care arena. PMID- 29324108 TI - The meaning of hope to palliative care cancer patients. AB - This paper describes a phenomenological study which sought to explore the meaning of hope to patients with cancer who are receiving palliative care. A purposive sample of four patients was interviewed using a semi-structured format. Content analysis of the themes arising from the transcripts identified three specific areas of meaning as influential in maintaining hope; the maintenance of the disease as it existed at the time of interview for the individual, underpinned by a hope for cure; the existence and presence of significant family members, and an anticipated future with them; the maintenance of a positive interest in the individual by health care professionals. All participants identified that loss of control over any of the hope maintaining factors, would cause loss of hope. Within each description of hope were individual meanings. However, the generic themes described the essence of the phenomenon of hope. The study thus identified the existence of hope, its nature and meaning, for those who participated and is a starting point for further research in this area. PMID- 29324110 TI - Multi-faith hospices. AB - The United Kingdom (UK) today has developed into a multi-cul-tural society. Health care professionals are called upon to care for people from cultures that are often different from their own. In order to do this effectively there has to be understanding and sensitivity to the needs of these patients. Evidence suggests that health care professionals are not alert to these needs. Hospices, in particular, need to develop an awareness and a sensitivity to other cultures in order to care for the service users in a truly holistic sense. The changes required in attitude, practice and environment take time, planning and commitment from all members of the multi-disciplinary team, and indeed from the whole organisation. PMID- 29324111 TI - Spiritual care: the heart of palliative nursing. AB - The spiritual realm can be broadly defined as the life force springing from the unknown that pervades each person's entire being. It encompasses the volitional, emotional, ethical, social, intellectual and physical dimensions. It is the centre or core that integrates the whole person, surpassing the biological and the psychosocial. It is the self, or I, the essence of person-hood, the God within, that which communicates with the transcendent. It is that part of each individual that aspires to ultimate awareness, meaning, value, purpose, beauty, dignity, relatedness and integrity. The spiritual is the source of faith, hope and courage. It inspires theology, artistic inspiration and expression, love and healing. PMID- 29324112 TI - Signposts on the journey: the place of ritual in spiritual care. AB - An exploration of the nature and function of rituals is undertaken in this paper to consider the importance and relevance of rituals in spiritual care, within the palliative care speciality. Understandings of ritual tend to focus on either their association with religious practices or ritualistic action. However, rituals can still provide a practical and symbolic way to facilitate change for individuals, both within an organisational context and in spiritual journeys within their own lives. Empirical work examining the hospice culture, using a rites of passage framework, illustrates how the presence of rituals within hospice care may be helpful for individuals experiencing the transition from life to death. PMID- 29324113 TI - An exploration of the concept of spirituality. AB - This paper explores the concept of spirituality using the framework developed by Walker and Avant (1995). Consideration of the concept, as used within nursing, suggested two broad categories: one relating to religious connotations and the second relating to non-religious connotations such as belief in the source/principle of life the characteristics or attributes of a person. Use of the concept analysis framework proved to be limited, because of the subjective and often intangible nature of spirituality. It remains a personal and individualistic concept which frustrates the development of a simple, standard definition. It may therefore be more appropriate for future nursing research and practice to explore nursing practices such as interpersonal interaction and communication. This may then facilitate nurses' assessment and exploration of spirituality with their patients. PMID- 29324114 TI - Teaching spiritual care to nurses: an alternative approach. AB - This paper presents an approach to teaching spiritual care that is underpinned by a traditional philosophy of care as agape. In this approach spiritual care is considered a fundamental character of care, not a self-conscious addition. The caring function of the nurse is qualitatively differentiated from that of the religious minister, whose role is considered to be currently underestimated. From this perspective, teaching spiritual care to nurses is not so much achieved through theoretical or experiential analysis and reflection, but by following an established moral pattern; it is not taught so much as caught. It is argued that this traditional approach to spiritual care provides an alternative to current educational ideologies in nursing, and reflects patients' and nurses' own attitudes to - and expectations of - the spiritual dimension of care. PMID- 29324115 TI - The experiences and needs of patients attending a cancer support group. AB - This paper explores the experiences of people who, following a diagnosis of cancer, initially received treatment in a conventional hospital setting under the direction of professional health-care workers and then joined a cancer support group. In this study it is assumed that an increased awareness of the experiences and needs of patients with a malignant disease will enhance the ability of professional health-care workers to provide more effective care and to meet the physical, psychological, social and spiritual needs of cancer patients. A phenomenological approach was employed in an attempt to understand the experiences from the perspective of the respondents in the study. PMID- 29324116 TI - Staff support in hospices. AB - This article reports on a descriptive study of staff support in 116 hospices in the UK. The study took the form of a postal questionnaire survey. Before the survey an extensive review of the literature was carried out which highlighted the causes and effects of stress, both generally and in palliative care, along with coping strategies. The literature emphasised the intense nature of palliative care and the importance of having effective support mechanisms in place for staff (McKee, 1995). The results of this survey showed that, in general, hospices are attempting to deal with staff stress by offering group and/or individual support. PMID- 29324117 TI - Clinical supervision in sustaining and developing nursing practice. AB - Clinical supervision and its influence on practice is of profound importance to nursing, midwifery and health visiting. This paper examines the role of clinical supervision in context and provides a case study illustration of fundamental concepts. A psychodynamic perspective is assumed for the discussion. The case for clinical supervision as a means to ensure the safe and effective delivery of health care is presented. PMID- 29324118 TI - Palliative care in motor neurone disease. AB - Motor neurone disease (MND) is a fatal, progressive, neurodegenerative disease with no known cure. Deterioration of upper and lower motor neurones leads to progressive weakness, and disability and death usually occur within 5 years. The symptoms of MND are many and varied, and lead to progressive loss of function and potential loss of dignity. Professionals may wrongly give the impression that little can be done for patients with this devastating disease. However, symptom relief is of paramount importance in maintaining quality of life in MND. Patients may suffer from pain and immobility, speech and swallowing problems, emotional difficulties, bowel and bladder problems, dyspnoea and ventilatory failure. Nurses and therapists involved in palliative care will have met many of these symptoms in other diseases and are well placed to extend their expertise to patients with MND and their families. PMID- 29324119 TI - Body image: using women who have had breast surgery as a case study. AB - This paper attempts to bring together some of the social and historical influences which impact on body meaning and thereby influence body image formation. Using women with breast cancer as a case study, it is argued that the resultant body image construct has implications for women's attitudes towards their bodies in general and their breasts in particular. These influences are considered in relation to women's response to threats against body image integrity such as those posed by surgical intervention for breast cancer. Knowledge and awareness of the factors which affect body meaning and body image can be used to improve our understanding and care of a wide range of patients with advanced disease. PMID- 29324120 TI - Nurses are expanding their roles despite widespread demoralisation. AB - Throughout the world nurses are under pressure. Changes in approaches to health care delivery are occurring in m any countries, resulting in a reduction in human and financial resources, downsizing of nursing staff and the increased use of unregistered health-care personnel. In the UK, the impact on morale has been profound. A recent survey by the Department of Health (1995) has revealed that one in three nurses who trained in 1991 and before have now left the profession. Of those questioned, 43% stated that they would never consider returning to the NHS because of their dissatisfaction with nursing. PMID- 29324121 TI - The role of Macmillan nurse tutors: an interview study with post-holders. AB - This article explores the role of Macmillan nurse tutors through in-depth, semi structured tape-recorded interviews with 22 post-holders, focusing on their responsibilities, institutional affiliations and career aspirations. After full transcription, these qualitative data were subjected to open coding. Many tensions and variations within the role were revealed. However, these tutors appeared to be extremely committed to cancer and palliative care. They were concerned about how their future educational position would be maintained in a changing system of health care and health provision. PMID- 29324122 TI - Professional support within hospices. AB - During a prospective study in two hospices, 41 nurses were interviewed about recent critical incidents at work. Questionnaires based on the work of House (1985) were used to measure their perceptions of professional support. At each interview, nurses detailed an average of four recent occasions when work-related support had been received. Overall, nurses were fairly satisfied with the professional support they had received, and it was evident that their direct supervisor was the most significant figure. However, some interesting distinctions were identified. For example, practical (as opposed to emotional) support was the most appreciated, and large meetings were frequently viewed as unhelpful. Nurses' friends and relatives were unlikely to be able to meet any needs for professional support that were not met in the work setting. The study demonstrated how helpful and unhelpful management strategies can be identified and how an overall picture of the level of professional support can be constructed. PMID- 29324123 TI - A teacher's return to clinical nursing practice. AB - Having been employed as a nurse educationalist for many years, a return to clinical nursing care, while having been a big personal ambition, only became a reality in 1992. PMID- 29324124 TI - Island Hospice Service - Harare. AB - Since 1979, Island Hospice Service (IHS) has provided care for patients with a life-threatening illness together with their families and the bereaved. This article describes the experiences of a volunteer social worker who was a member of the IHS team for 3 years. IHS offers not only a nursing service but also a bereavement service, and these are free of charge. Group work includes members with a wide age range. There is a support and training network for all staff members, including volunteers. PMID- 29324125 TI - Correspondence. AB - Dear Editor, I am a founding member of the Canadian Palliative Care Association. I helped my parents (in Canada) and my grandmother (in Holland) live at home until they died. I am a writer and educator and have written 16 books, including three in the field of hospice/palliative care. I write palliative care books from the perspective of the family and the patient. I am, at present, working on a fourth palliative care book Successful Hospice Care. PMID- 29324126 TI - Group cognitive behavioural therapy: an intervention for cancer patients. AB - There is considerable evidence to suggest that cancer patients, including those with advanced disease, experience significant and long-term psychosocial problems. Work using group cognitive behavioural therapy with cancer patients has recently demonstrated a way in which it may be possible to treat emotionally distressed individuals effectively. This article reviews the literature on group cognitive behavioural psychotherapy and discusses for practitioners of all disciplines the important techniques, the value of time-limited interventions, the type of patients who may benefit, and where and how to facilitate successful interventions. Health workers with an interest in the emotional care of patients are thus provided with some understanding of the value that group cognitive behavioural psychotherapy may hold for them. PMID- 29324127 TI - A different kind of care. AB - This article describes an interim home for terminally ill patients who, despite an extended prognosis, do not require highly skilled care. Patients are assessed for suitability by a professional nurse from the interim home. The assessment, although not rigid, is quite specific. Care is provided by community care workers under the supervision of, and backup from, a professional nurse. The article includes issues of family involvement, the mode of dying and a study of staff stress levels. Comparisons are drawn between the interim home and the high care hospice centre and some interesting findings emerge. PMID- 29324128 TI - Demonstrating the value of palliative care. AB - Recently, three issues have been covered in the UK nursing press which have highlighted some of the conflicting perspectives confronting nurses today. The first has arisen out of work established in 1995 when an Expert Advisory Group was set up by the Chief Medical Officers of England and Wales to advise on the organization of cancer services. Following wide consultation, the report was launched and is now being implemented (Department of Health, 1995). The framework identifies three contexts in which cancer treatment and care will be delivered - the cancer centre, the cancer unit and the primary care setting - and makes a strong case for the establishment of key specialist nursing posts in each of these settings. PMID- 29324129 TI - It never rained in the house of sleep.... AB - Night - bat black, brooding, all encompassing darkness, blanketing the colours of the day; the outlines blur and shapes become fluid. PMID- 29324132 TI - Teenagers and loss. AB - The teenage years are a difficult phase of life when many physical and emotional changes occur. Although the needs of this age group differ from those of children and adults, professionals in the hospital setting have been slow to recognize and accommodate problems which are specific to teenagers, particularly at times of illness or bereavement. This article offers some thoughts on how to help teenagers cope with loss, whether it be their own death or the death of a loved one. PMID- 29324131 TI - Is there a place for euthanasia in palliative care? AB - In the current debate about the legalization of euthanasia the' distinction between giving care and bringing about death is blurred. Alongside this there is an apparent increased commitment to the further development of palliative care. Difficulties arise in palliative care when euthanasia is discussed as there is an inference that a request for euthanasia results from a failure on the part of the carers. Palliative care aims to relieve distress and suffering, but problems arise from unrealistic expectations of what can actually be achieved. There is a need for professionals to emphasize what is possible in relation to palliative care, to acknowledge that there are limitations, and to set realistic and carefully identified goals which are more likely to be achieved than impossible expectations which could induce individuals to consider euthanasia when impossible expectations are not reached. Euthanasia has an impact on the relationships between health-care professionals and their patients which give rise to a potential alteration of the traditional role. PMID- 29324133 TI - Direct access by GPs to palliative nursing. AB - This article presents the results of a pilot study evaluating direct access by GPs to specialist community palliative nursing support without an intermediary visit from a medical consultant. GPs wishing to refer terminally ill patients to the community palliative care team were given access via either medical assessment or nursing assessment. Results showed that the overall referral rate to the service increased during the period of the study. In addition, the new service was well received by the GPs who used it. A large number of referrals (75%) requested support for the patient and family. This study contributes to the ongoing debate about the need to identify and define supportive interventions and the most appropriate providers of these. PMID- 29324134 TI - Facilitation: the concepts in use in palliative care nursing. AB - Facilitation is a fairly common technique for helping palliative care patients in the clinical setting. Reflective practice provides an opportunity for practitioners to think out the concepts in use while facilitating care. This study reports on the views of practitioners who experienced reflective learning and facilitation as part of a Course, and attempted to identify, in their practice, the concepts they used to facilitate patient care. The aim was to recognize concepts that practitioners (and teachers) can use to facilitate care. The methods used for research were participant observation and interviews. Data analysis consisted of coding and categorizing the concepts emerging from this study. The result was identification of the PACTS mnemonic crystallising the key concepts in facilitation: Purpose, Action, Collaboration, critical Thinking, and Support and confrontation. PMID- 29324135 TI - Palliative nursing in a changing health-care system. AB - Although palliative care has been practised since ancient times, its development as a recognized discipline within health care began some 30 years ago. The resulting benefits to patients, including enhanced relief of distressing symptoms and improvement in overall quality of life are best demonstrated in the care of people with advanced cancer. Continued growth of palliative care, particularly in Western countries, has been assured by the emergence of doctors and nurses trained in the specialty, who have become the cornerstone of interdisciplinary palliative care teams. PMID- 29324136 TI - Patient compliance with medication regimen after discharge from palliative care. AB - Patient compliance with prescribed medication has been well researched and there is a consensus in the literature that noncompliance exists on a large scale. In the studies reviewed the level of non-compliance ranged from 38.5% to 60%, but very little of this research related specifically to palliative care patients. The present study was undertaken to ascertain the level of compliance in a group of patients who had been discharged home from a palliative care centre, and to obtain their views on taking their medication in order to identify ways in which services could be improved. PMID- 29324137 TI - The organization and delivery of palliative care services in India. AB - A study/lecture tour of India was undertaken by the authors during October and November 1995. The purpose of the visit was to provide a programme of education in palliative care and to gain a deeper understanding of the care of dying people in India. Seven centres were visited and the distance covered was approximately 4500 km. This article describes existing palliative care links between India and the UK and discusses the organization and delivery of palliative care services in the areas visited. Problems such as difficulty in accessing services and resources are explored. Psychosocial issues relating to peoples' attitudes towards illness and uptake of services are also investigated. Some strategies are suggested to support the continued development of palliative care in India This journey was an opportunity to gain an empathetic understanding of the spiritual, psychological, emotional and multicultural palliative care needs of the Asian population. PMID- 29324138 TI - What terminally ill patients value in the support provided by GPs, district and Macmillan nurses. AB - The aim of this project was to investigate how patients view the care and support provided by their doctors and nurses. Forty-three patients with a life expectancy of 1 year or less who were being looked after in their own homes were asked to give their views of the support given by general practitioners, district nurses and Macmillan nurses. Patients had predominantly positive views of the support received. The content of their positive statements suggested that psychosocial aspects of support, including communication and kindness and consideration shown, were valued most. Actions in the form of helpfulness, organization of support and being accessible were also important, while clinical aspects received less emphasis. Clinical aspects of care were emphasized more when patients expressed negative views of support. Patients' statements suggested that emotional support and information were provided predominantly by Macmillan nurses. PMID- 29324139 TI - Palliative nursing in New Zealand. AB - New Zealand has a well-developed framework for training and supporting palliative nurses. Palliative nursing in New Zealand was built on the pioneering efforts of nurses working with others in the setting up of hospices and cancer care services in the 1970s. The wisdom of established community and religious nursing services, and those travellers amongst us who return with new ideas, also contributed. PMID- 29324140 TI - A composite model of palliative care for the UK. AB - This paper argues that there has been a paradigm shift in recent times in the service needs for palliative care as a result of the UK's National Health Service internal market structure, the shift to community care and the rising needs of the private sector. Nursing models associated with palliative care are reviewed and represented within the 'Composite Model of Palliative Care' which blends current and traditional models of care, focusing upon a multidisciplinary approach involving professionals, family and friends. The roles of advocate, manager, educator, carer/therapist, researcher and communicator/counsellor are presented as the vehicle to implement the model of care through a learning contract and associated clinical supervision. The paper also argues that there is a need for specialist palliative care courses at least at diploma level, with appropriate professional recognition, designed to make the paradigm shift and to project this into clinical practice through a tripartite learning contract involving specialist tutor, clinical supervisor and student. The rationale and outline of the course are presented along with the argument that this paradigm shift needs to take place if palliative care is to be truly holistic care. PMID- 29324141 TI - Problem and management of noisy rattling breathing in dying patients. AB - Noisy rattling breathing in dying patients is a symptom control problem which has attracted only a fleeting mention within the literature. This study investigated palliative care nurses' feelings about the problem and the management of noisy rattling breathing in dying patients. The aspects studied were based on the literature and multidis-ciplinary team discussion, and included nurses' feelings about the distress caused by noisy rattling breathing, their perceived confidence in providing related nursing care and their thoughts and feelings about the established care options. Data were gathered from a convenience sample of twenty three palliative care nurses by means of a questionnaire. This data was analysed using descriptive statistics. The results revealed that nurses perceived relatives to be particularly distressed by noisy rattling breathing, Several nurses felt that they lacked confidence in providing related nursing care and there was a felt need for clinical guidelines. The limitations of the study are discussed and the conclusion highlights the need for further research into this symptom control problem. PMID- 29324142 TI - Audit of pain and sleep during sleeping hours. AB - This joint audit between nursing and medical staff examines the quality of sleep experienced during the night and the degree to which pain is controlled in a specialist palliative care unit. Patients and nurses independently completed short questionnaires incorporating categorical rating scales for pain and sleep. Patients' perceptions were directly sought. Nurses were good at assessing whether patients slept well and also whether they were pain free. However assessment was less accurate in judging the degree of pain when present or quality of sleep when poor. Areas to improve pain control and sleep were identified. This audit methodology has the potential to provide outcome measures of quality of palliative care not only for the individual palliative care provider but also wider purchaser and provider bodies. PMID- 29324143 TI - Clinical supervision in moderating organisational conflict and preserving effective working relationships. AB - This paper examines the role of clinical supervision in relation to the work of a palliative care nurse, although the issues discussed relate to all nurses whatever specialities. The effects of market forces and organisational culture on the delivery of human service are explored in context. The writer draws on psychoanalytical ego defence construction and existential-phenomenological ideas to throw light on the deliberation. Through a case study illustration the writer makes a case for the development of a safe and effective working relationships helped by clinical supervision and through agreed working arrangements. The discussion concludes with the central recommendation that constructing a safe working environment for clinical supervision, through which to explore the dynamic forces influencing the organisation of health care, transcends methodological considerations. (The writer has changed all names and circumstances). PMID- 29324144 TI - The role and need of the children's hospice in the United Kingdom. AB - Despite the growth of the children's hospice movement the public and many health professionals do not appear to understand its true role. It provides relief and terminal care with practical and emotional support for children with life limiting and life-threatening conditions, and their families. It should, however, not be seen as the only option open to these families. It is not a substitute for good hospital or community care. Paediatric palliative care is a very specialised area which requires expert and individualised care. Children's hospices could be seen as local centres of clinical research, education and audit rather than just a provision of care. PMID- 29324145 TI - Pathophysiology and management of dyspnoea in palliative care and the evolving role of the nurse. AB - Dyspnoea is a symptom commonly encountered in palliative care, especially with patients suffering from advanced cancer. An understanding of the pathophysiological mechanisms that are understood to be associated with this symptom will enable health professionals to provide more appropriate management interventions. A review of the literature was undertaken to explore current knowledge on the causes and management of dyspnoea. This paper will describe the results of this review by giving an overview of the pathophysiology of dyspnoea, and discussing controversial treatment issues. Methods of assessment and the role of the nurse in managing this distressing symptom are also explored. PMID- 29324146 TI - Palliative nurses' perceptions of the nature and effects of their work. AB - This paper presents some of the qualitative findings from a recent research project, which explored the nature and effects of palliative nursing care for nurses, in New South Wales, Australia. By using story telling as the research methodology the participants related their experiences about palliative care nursing practice in which they felt they did or did not make a difference to the people in their care. The results of this project clearly demonstrated that the nature of palliative nursing is expressed by nurses dealing with death, making connections, making contracts, demonstrating advocacy, building interpersonal relationships, requiring family and colleague support and involvement in issues. The effects of palliative nursing were described as whether nurses were able to find solutions; facilitate breakthroughs, acceptance and support; reflect of their values and feelings. PMID- 29324147 TI - Stabilisation in colorectal cancer. AB - Stabilisation of disease (as well as objective response) is an important outcome in the treatment of cancer. To test the hypothesis that chemotherapy brings positive Quality of Life (QoL) benefits when disease stabilisation is achieved, a utility study involving 30 UK nurses experienced in oncology care has been carried out. Acting as proxies for cancer patients, the nurses were asked to assess the values of various health states associated with the treatment of metastatic colorectal cancer. The nurses rated the QoL benefits of stabilisation almost as highly as those of partial response (Utility score of 0.95 vs. 1). Side effects associated with chemotherapy, however, mean that active management of toxicity is needed to preserve QoL benefits. More than 50% of metastatic colorectal cancer patients have a partial response or have their disease stabilised with the new topoisomerase I inhibitor (irinotecan, CAMPTO(r)). It is indicated for use when treatment with 5-fluorouracil (5-FU) has failed. Major side-effects are short-lived compared with treatment benefits, so it appears that, for patients who respond or who are stabilised, the QoL improvements will outweigh any short-term costs of toxicity. PMID- 29324148 TI - Euthanasia: failure or autonomy? AB - When faced with a request for euthanasia, carers should not immediately assume that this has been generated by a failure of care. It is possible to distinguish between those patients who can be helped to want to live again and those who cannot. Within the second group there will be individuals who choose euthanasia not because of psychological problems but because they consider it a rational choice, given who they are and how they have lived their lives. In dealing with such patients, carers must respect their decision, even when they are unable or unwilling to accede to it. Such respect is only possible in a context where people feel free to discuss and explore the possibility of euthanasia. If the institutional philosophy prevents this, a harm is done to those who believe that there is nothing wrong with euthanasia in principle, and that, in fact, it is right for them in practice. PMID- 29324149 TI - Palliative care and the ethics of resource allocation. AB - Resources for health care are scarce, and dividing them fairly is both necessary and difficult. Palliative care has a claim on these resources because it is concerned with improving the quality of life of those who are dying. However, some standard ways of allocating resources, such as the use of Quality Adjusted Life Years (QALYs), do not favour the funding of palliative care. Even if this can be corrected, there are still problems of allocation within palliative care itself: a choice has to be made between funding a complete provision of care for some but not others, or using resources to provide a more basic service for all those who are in need. PMID- 29324151 TI - Care, autonomy and nurse education. AB - Paternalism in medicine is giving way to consumerism. When doctors sneeze, nurses catch cold. Consumerism is having an equal affect on nursing. For example, patient autonomy is currently in vogue. A greater emphasis on the needs and wishes of patients is a much needed correction to the times when medical and nursing staff rode roughshod over those in their care. However, the danger is that we go too far and undermine the personal and professional integrity of nurses. PMID- 29324152 TI - Palliative care nursing in a curative environment: an Australian perspective. AB - This article describes the experiences of two nurses who developed palliative care specialty practices in acute general hospitals. The principal goal of, their work was to facilitate a smooth curative-palliative transition for patients, their families and the hospital staff. A major challenge was finding techniques to promote the palliative care philosophy in a curative environment. Staff in acute hospitals often work in a paradoxical situation between the ideologies of curative and palliative care. This situation would not occur in a hospice or palliative care unit. Many nurses apparently assume that palliative care is synonymous with terminal care and is therefore only needed when the patient is near to death. Palliative care is often perceived by acute hospital staff to be a separate entity rather than integral to the common goals for good patient care. The first part of this article describes the experiences of a palliative care clinical nurse working with staff and patients in a private hospital. The second part discusses a clinical lecturer post which was established as a joint appointment between a university and a major public hospital in Brisbane, Australia. The goal of the joint appointment was to enhance the blending of theory and practice and to gain deeper understanding about the experience of patients who are dealing with life-threatening disease. PMID- 29324153 TI - Ethical issues in multicentre collaborative research on breathlessness in lung cancer. AB - This article describes, the ethical issues involved in developing a multicentre collaborative research project to evaluate a nurse-led clinic for breathlessness in patients with lung cancer. In this randomized controlled study, the framework of relationships between coordinating researchers and researchers in the collaborating centres, and between researchers in the collaborating centres and research participants, is identified as the focus of ethical attention. The principles of new paradigm and action research are identified as providing a basis for ethical research which focuses on the quality of the interaction between researcher and participant, and some parallels between this project and new paradigm research are explored. PMID- 29324154 TI - Helping children to grieve. AB - The aim of this article is to address the needs of grieving children, who are often excluded from the grieving process. Many adults erroneously believe that children do not grieve or that their grief is milder and of a shorter duration than that of adults. The first section of the article examines the literature dealing with the problems of grieving children. Loss of someone close to a child can cause great distress and may have an adverse effect on development. Repression or denial of grief in childhood may lead to psychiatric illness in adulthood. It is therefore vitally important that adults understand children's grief and have some idea of how they can help them through the grieving process. The second part of the article draws on the published literature to present a number of strategies which may be of benefit in helping children through the grieving process. PMID- 29324155 TI - Dignity and integrity at the end of life. AB - This article briefly examines what is meant by a 'good death' and looks in detail at the idea of 'death with dignity' as one such concept. This may be best understood not as a manner of dying, but as a manner of treating those who are dying. The relationships between dignity, self-respect and integrity are explored and illustrated with examples from both the literature and clinical practice. Nursing in a way that preserves or restores a patients' dignity in the face of illness and death makes severe demands on a nurse's integrity. The importance of having institutional mechanisms in place which assist the nurse in this work is emphasized, as is the need for clinical supervision in nursing. PMID- 29324156 TI - Ethical dimensions in palliative nursing. AB - Judging by the content and focus of national and international journals and conference programmes, it would appear that the preoccupation of health professionals with ethical aspects of care has increased dramatically in recent years. Nurses in particular are expressing deep concerns about the ethical dimensions of their work and many are opting to undertake advanced educational programmes dealing with this subject. It is interesting to reflect on the reasons for this growing concern. After all, many of the situations which we face today and which give rise to ethical dilemmas have been with us for many years. Life support machines, clinical trials and the desire of some to end their lives, when continued existence seems meaningless or intolerable, are not situations unique to the 1980s or 1990s - indeed, even I can remember them being around when I was a student nurse and that is going back some years! PMID- 29324157 TI - Orem's self-care model and clinical supervision. AB - This article explores Orem's self-care model in relation to the care of a dying person and his/her family and gives an overview of the model together with illustrations of key concepts. The main recommendation of the article is that Orem's model should be viewed within the context of existential humanism. It concludes with the view that the model should be linked to the concept of clinical supervision. PMID- 29324158 TI - Hospital nurses' bereavement support for relatives: study report. AB - Health carers in the field of palliative care have developed skills in dealing not only with dying people but also with their relatives. The same, however, cannot be said for carers in other clinical areas. How do nursing staff in these other areas feel about the way they respond to the needs of relatives of the dead and dying? Do they feel adequately prepared? This article examines the issue of bereavement support provided by nurses to relatives in hospital. It is based on semi-structured interviews with 50 nurses in one large teaching hospital. It was found that bereavement support varied from ward to ward, and that there was a need for greater preparation of nursing staff to take account of the needs of relatives. These needs range from practical information to emotional support. More educational opportunities should be provided for nurses, and joint workshops for medical and nursing staff should be established to explore the issues and develop a sensitive approach to relatives in all clinical areas. PMID- 29324159 TI - AIDS and community nursing care. AB - This article reports on a study commissioned by the Department of Health to examine community nursing services for people with HIV disease. Data were gathered on discharge, referral patterns and coordination of services for people with HIV disease in six health authorities in England. Methods included discharge surveys, a district nurse survey, and service user focus groups. All data were collectively analysed within a structure-process-outcome framework. Findings demonstrate that given adequate and appropriate support, education, training and clinical preparation, district nurses are effective and willing providers of care for people with HIV disease. However, there are problems in care coordination, discharge planning and accessing resources. At its best, community nursing is providing individualized, holistic and comprehensive care packages, but practice in both acute and primary care settings was not always effective. PMID- 29324160 TI - Influence of nurse gender on the use of silence, touch and humour. AB - A combination of data gathering approaches, i.e. conversation, observation and narrative exchange, were used to study the beliefs and actions of exemplary nurses. The data were analyzed using hermeneutic phenomenology and grounded theory methods and the findings revealed three major themes: dialogue in silence, mutual touch and sharing the lighter side of life. Participants in the study were chosen by peer nomination and reputational sampling and included both genders. The results showed a contrast in the way that exemplary males and females used silence, touch and humour in their practice. More specifically, compared with the women in the group, the men used silence to achieve different purposes, tended towards non-physical touch and used different forms of humour. This paper presents an introductory examination of the influence of nurse gender on the use of silence, touch and humour. PMID- 29324161 TI - Complementary therapies in cancer care: an NHS approach. AB - Complementary therapies are increasingly being used worldwide as a method of supporting people living with cancer. They offer improved quality of life, symptomatic control and self-help. There are established centres for complementary therapies in the UK; one such establishment is the Royal London Homoeopathic Hospital NHS Trust. This article describes the complementary cancer therapy programme offered at the RNHH. The programme includes homoeopathy, Iscador therapy, acupuncture, aromatherapy massage, Shiatsu, reflex zone therapy, relaxation and visualization training and breathing awareness classes. Other more conventional forms of assistance, including dietary advice, physiotherapy, occupational therapy and psychological support, are also offered. All therapies are advised according to individual need. Several case studies are presented to illustrate the use of the programme and its benefits. PMID- 29324163 TI - Psychological reactions to cancer recurrence. AB - The issue of fear of cancer recurrence in patients is poorly understood despite being acknowledged as important by nurses. Patients report feeling more emotional distress when a recurrence of their cancer recurs than at initial diagnosis. Many patients think that they have overcome the cancer and are bitterly disappointed when a recurrence is diagnosed. Courage is a theme that is present in many conversations with relatives and friends of cancer patients. This may inhibit the patient's need to express his/her distress and disappointment about the recurrence. If the patient's feelings cannot be expressed with the family, the nursing and medical staff need to work with the patient to allow him/her to explore these areas. This review paper draws together some significant findings that will assist oncology nurses when caring for patients with cancer. PMID- 29324162 TI - Nurses' perceptions of palliative care nursing. AB - This exploratory study using a survey design sought to investigate nurses' perceptions of palliative care nursing before and after participating in a 60 hour continuing education programme. The 26 participants, from various nursing backgrounds, were enrolled on a joint university/hospital course which used a problem-based learning approach. During the course introduction, demographic data, together with descriptions of the students' perception/understanding of palliative care nursing, were obtained. Students' perceptions became the sole focus of the post-course study. Qualitative responses were analysed thematically and the remainder were analysed descriptively. The results suggest that those who undertook the course were beginning to move from a focus on carrying out nursing care to a deeper awareness of the possibilities of simply being with a patient. Other implications of the study were that palliative care educational programmes should be structured and taught in ways which help students reconceptualize the human person more holistically. Other factors emerged that were related to the physical environment of care and the wellbeing of staff in the practice setting. PMID- 29324164 TI - Management of lymphoedema: a developing specialism in nursing? AB - Although there is a long tradition of complex physical treatment of lymphoedema in continental Europe, it is only in the past decade that this approach has been introduced to Britain. During the 1980s, there was a gradual increase in the number of healthcare professionals, in particular nurses, offering treatment alongside their existing responsibilities. In the last 2 years, however, there has been a significant increase in the number of professionals specializing in the management of lymphoedema. Is the management of lymphoedema evolving as a specialism? This paper considers the concept of specialism and relates it to the development of lymphoedema management in Britain. Parallels with the development of an established nursing specialty are also explored. PMID- 29324167 TI - Research directions in palliative care nursing. AB - One of the most heartening aspects of palliative care and, in particular, the nursing contribution, is the rapid expansion of research activity directly pertinent to patients and their families. The courage of many research nurses in asking penetrating and sensitive questions is admirable. As they have often worked in the area and have the relevant skills, it is possible for nurses to identify important issues and explore them in a directly applicable way. PMID- 29324165 TI - Reflective practice: linking theory and practice in palliative care nursing. AB - Reflection is a method of learning and teaching nursing through critical analysis of experience. In this study the illuminative research approach is used with students on a care of the dying course (at diploma level) to explore the benefits of reflective practice. The study concludes that the nurses showed an increase in critical thinking, listening and observation skills, and awareness of knowledge in-use as a result of reflective learning and practice. PMID- 29324168 TI - Caring for dying Jewish people in a multicultural/religious society. AB - Despite an increased emphasis on racial awareness in health-care settings, religious customs that disrupt routines still unsettle nurses and other health workers. Providing education about the beliefs of different ethnic minorities and the significance for the different parties of practising specific death-related rituals could both prepare nurses for what they may encounter and increase their understanding of the responses of patients and their relatives. This article explores Jewish beliefs and practices relating to caring for dying and recently deceased people as an example of such death-related rituals. It is suggested that nurses should not be afraid of asking direct questions about levels of religious observance of the relatives of the dying Jewish person. Good communication skills and an openness to accept differences are essential if nurses are to respond appropriately to reduce the distress bereaved people from ethnic minorities experience when carrying out religious practices. PMID- 29324169 TI - Absence and Need for Fatigue Risk Management in Emergency Medical Services. PMID- 29324170 TI - Letter from the Editor. PMID- 29324172 TI - Human Vaccines & Immunotherapeutics: News. PMID- 29324174 TI - R. J. Michael Fry, MD 1925-2017. PMID- 29324176 TI - Resilience and Action in a Challenging Time for LGBT Rights. PMID- 29324175 TI - Radiation- and Age-Associated Changes in Peripheral Blood Dendritic Cell Populations among Aging Atomic Bomb Survivors in Japan. AB - Previous immunological studies in atomic bomb survivors have suggested that radiation exposure leads to long-lasting changes, similar to immunological aging observed in T-cell-adaptive immunity. However, to our knowledge, late effects of radiation on dendritic cells (DCs), the key coordinators for activation and differentiation of T cells, have not yet been investigated in humans. In the current study, we hypothesized that numerical and functional decreases would be observed in relationship to radiation dose in circulating conventional DCs (cDCs) and plasmacytoid DCs (pDCs) among 229 Japanese A-bomb survivors. Overall, the evidence did not support this hypothesis, with no overall changes in DCs or functional changes observed with radiation dose. Multivariable regression analysis for radiation dose, age and gender effects revealed that total DC counts as well as subpopulation counts decreased in relationship to increasing age. Further analyses revealed that in women, absolute numbers of pDCs showed significant decreases with radiation dose. A hierarchical clustering analysis of gene expression profiles in DCs after Toll-like receptor stimulation in vitro identified two clusters of participants that differed in age-associated expression levels of genes involved in antigen presentation and cytokine/chemokine production in cDCs. These results suggest that DC counts decrease and expression levels of gene clusters change with age. More than 60 years after radiation exposure, we also observed changes in pDC counts associated with radiation, but only among women. PMID- 29324173 TI - The Risk of Deterioration in GCS13-15 Patients with Traumatic Brain Injury Identified by Computed Tomography Imaging: A Systematic Review and Meta-Analysis. AB - The optimal management of mild traumatic brain injury (TBI) patients with injuries identified by computed tomography (CT) brain scan is unclear. Some guidelines recommend hospital admission for an observation period of at least 24 h. Others argue that selected lower-risk patients can be discharged from the Emergency Department (ED). The objective of our review and meta-analysis was to estimate the risk of death, neurosurgical intervention, and clinical deterioration in mild TBI patients with injuries identified by CT brain scan, and assess which patient factors affect the risk of these outcomes. A systematic review and meta-analysis adhering to PRISMA standards of protocol and reporting were conducted. Study selection was performed by two independent reviewers. Meta analysis using a random effects model was undertaken to estimate pooled risks for: clinical deterioration, neurosurgical intervention, and death. Meta regression was used to explore between-study variation in outcome estimates using study population characteristics. Forty-nine primary studies and five reviews were identified that met the inclusion criteria. The estimated pooled risk for the outcomes of interest were: clinical deterioration 11.7% (95% confidence interval [CI]: 11.7%-15.8%), neurosurgical intervention 3.5% (95% CI: 2.2%-4.9%), and death 1.4% (95% CI: 0.8%-2.2%). Twenty-one studies presented within-study estimates of the effect of patient factors. Meta-regression of study characteristics and pooling of within-study estimates of risk factor effect found the following factors significantly affected the risk for adverse outcomes: age, initial Glasgow Coma Scale (GCS), type of injury, and anti-coagulation. The generalizability of many studies was limited due to population selection. Mild TBI patients with injuries identified by CT brain scan have a small but clinically important risk for serious adverse outcomes. This review has identified several prognostic factors; research is needed to derive and validate a usable clinical decision rule so that low-risk patients can be safely discharged from the ED. PMID- 29324177 TI - Tobacco Use Among Adults by Sexual Orientation: Findings from the Population Assessment of Tobacco and Health Study. AB - PURPOSE: The aim of this study was to characterize lifetime tobacco use across two measures of sexual orientation and six types of tobacco products. METHODS: We conducted a cross-sectional analysis of the Population Assessment of Tobacco and Health (Wave 1, 2013-2014, USA) to estimate the prevalence of tobacco use (cigarettes, e-cigarettes, cigars, pipes, hookah, and smokeless) stratified by gender (men/women), age (< 25/>= 25 years old), and sexual orientation. Sexual orientation was operationalized as sexual identity and sexual attraction. RESULTS: Younger lesbian/gay and bisexual women had higher relative odds of experimental use of all six tobacco products compared to heterosexual women, whereas lesbian/gay and bisexual women in both age groups had higher odds of regular use of cigarettes, e-cigarettes, cigars, and hookah than heterosexual women. Younger gay men (but not older gay men) had higher relative odds of experimental and regular use of cigarettes compared to heterosexual men. Older gay men had higher odds of experimental e-cigarette and hookah use, but lower odds of regular cigar and experimental/regular smokeless tobacco use. Measures of sexual orientation identity and sexual attraction resulted in similar estimates of tobacco use with noted differences in those who identified as "something else," as well as among those who indicated asexual attraction. CONCLUSION: Our findings reflect a complex relationship between sexual orientation and tobacco use. Gender-based and product-specific approaches to tobacco prevention and control efforts are needed to address the high use of tobacco among sexual minority women. PMID- 29324178 TI - Sex Venue-Based Network Analysis to Identify HIV Prevention Dissemination Targets for Men Who Have Sex with Men. AB - PURPOSE: The aim of this study was to identify sex venue-based networks among men who have sex with men (MSM) to inform HIV preexposure prophylaxis (PrEP) dissemination efforts. METHODS: Using a cross-sectional design, we interviewed MSM about the venues where their recent sexual partners were found. Venues were organized into network matrices grouped by condom use and race. We examined network structure, central venues, and network subgroups. RESULTS: Among 49 participants, the median age was 27 years, 49% were Black and 86% reported condomless anal sex (ncAS). Analysis revealed a map of 54 virtual and physical venues with an overlap in the ncAS and with condom anal sex (cAS) venues. In the ncAS network, virtual and physical locations were more interconnected. The ncAS venues reported by Blacks were more diffusely organized than those reported by Whites. CONCLUSION: The network structures of sex venues for at-risk MSM differed by race. Network information can enhance HIV prevention dissemination efforts among subpopulations, including PrEP implementation. PMID- 29324179 TI - Development and validation of an LC-MS/MS method for the quantification of tiamulin, trimethoprim, tylosin, sulfadiazine and sulfamethazine in medicated feed. AB - A new multi-compound method for the analysis of veterinary drugs, namely tiamulin, trimethoprim, tylosin, sulfadiazine and sulfamethazine was developed and validated in medicated feeds. After extraction, the samples were centrifuged, diluted in Milli-Q water, filtered and analysed by high performance liquid chromatography coupled to tandem mass spectrometry. The separation of the analytes was performed on a biphenyl column with a gradient of 0.1% formic acid in acetonitrile and 0.1% formic acid in Milli-Q water. Quantitative validation was done in accordance with the guidelines laid down in European Commission Decision 2002/657/EC. Method performances were evaluated by the following parameters: linearity (R2 < 0.99), precision (repeatability <14% and within laboratory reproducibility <24%), recovery (73.58-115.21%), sensitivity, limit of detection (LOD), limit of quantification (LOQ), selectivity and expanded measurement uncertainty (k. = 2). The validated method was successfully applied to the 2 medicated feeds obtained from the interlaboratory studies and feed manufactures from Spain in August 2017. In these samples, tiamulin, tylosin and sulfamethazine were detected at the concentration levels declared by the manufacturers. The developed method can therefore be successfully used to routinely control the content and homogeneity of these antibacterial substances in medicated feed. Abbreviations AAFCO - Association of American Feed Control Officials; TYL - tylosin; TIAM - tiamulin fumarate; TRIM - trimethoprim; SDZ - sulfadiazine; SMZ - sulfamethazine; UV - ultraviolet detector; FLD - fluorescence detector; HPLC - high performance liquid chromatography; MS/MS - tandem mass spectrometry; LOD - limit of detection; LOQ - limit of quantification; CV - coefficient of variation; SD - standard deviation; U - uncertainty. PMID- 29324181 TI - Effective antibiotic stewardship in spinal cord injury: Challenges and a way forward. AB - Context Antibiotic stewardship, defined as a multidisciplinary program to reduce the misuse of antibiotics, and in turn, antibiotic resistance, is a high priority. Persons with spinal cord injury/disorder (SCI/D) are vulnerable to receiving multiple courses of antibiotics over their lifetime given frequent healthcare exposure, and have high rates of bacterial infection with multi-drug resistant organisms. Additional challenges to evaluating appropriate use of antibiotics in this population include bacterial colonization in the urine and the differences in the presenting signs and symptoms of infection. Therefore, Veterans Health Administration (VHA) facilities with SCI/D centers need effective antibiotic stewardship programs. Results We analyzed the results of a 2012 VHA wide survey evaluating available antibiotic stewardship resources, and compared the resources present at facilities with SCI/D (n=23) versus non-SCI/D facilities (n=107). VHA facilities with SCI/D centers are more likely to have components of an antibiotic stewardship program that have led to reduced antibiotic use in previous studies. They are also more likely to have personnel with infectious diseases training. Conclusion VHA facilities with SCI/D centers have the resources needed for antibiotic stewardship. The next step will be to determine how to implement effective antibiotic stewardship tailored for this patient care setting. PMID- 29324180 TI - Who Cares about Sleep in Older Adults? PMID- 29324182 TI - Recent Advances in Solid-State Nuclear Magnetic Resonance Spectroscopy. AB - The sensitivity of nuclear magnetic resonance (NMR) spectroscopy to the local atomic-scale environment offers great potential for the characterization of a diverse range of solid materials. Despite offering more information than its solution-state counterpart, solid-state NMR has not yet achieved a similar level of recognition, owing to the anisotropic interactions that broaden the spectral lines and hinder the extraction of structural information. Here, we describe the methods available to improve the resolution of solid-state NMR spectra and the continuing research in this area. We also highlight areas of exciting new and future development, including recent interest in combining experiment with theoretical calculations, the rise of a range of polarization transfer techniques that provide significant sensitivity enhancements, and the progress of in situ measurements. We demonstrate the detailed information available when studying dynamic and disordered solids and discuss the future applications of solid-state NMR spectroscopy across the chemical sciences. PMID- 29324183 TI - Technologies for Measuring Pharmacokinetic Profiles. AB - The creation of a pharmacokinetic (PK) curve, which follows the plasma concentration of an administered drug as a function of time, is a critical aspect of the drug development process and includes such information as the drug's bioavailability, clearance, and elimination half-life. Prior to a drug of interest gaining clearance for use in human clinical trials, research is performed during the preclinical stages to establish drug safety and dosing metrics from data obtained from the PK studies. Both in vivo animal models and in vitro platforms have limitations in predicting human reaction to a drug due to differences in species and associated simplifications, respectively. As a result, in silico experiments using computer simulation have been implemented to accurately predict PK parameters in human studies. This review assesses these three approaches (in vitro, in vivo, and in silico) when establishing PK parameters and evaluates the potential for in silico studies to be the future gold standard of PK preclinical studies. PMID- 29324184 TI - Effects of nonsteroidal anti-inflammatory drugs on serum proinflammatory cytokines in the treatment of ankylosing spondylitis. AB - OBJECTIVE: This study was conducted to investigate the correlation between serum levels of proinflammatory cytokines and the clinical efficacy of nonsteroidal anti-inflammatory drugs (NSAIDs) in patients with ankylosing spondylitis (AS). METHODS: A total of 148 patients with AS were selected and received NSAID treatment. ELISA was used to assess cytokine levels, and patients were assigned into the following groups: positively effective; effective; moderately effective; and ineffective. Spearman and Pearson correlation analyses were used for correlation analysis. RESULTS: The erythrocyte sedimentation rates (ESR), C reactive protein (CRP) levels, and immunoglobulin A (IgA) levels of the case group after NSAID treatment were markedly lower than those before NSAID treatment. After treatment, the levels of interleukin (IL)-6, IL-17, and tumor necrosis factor (TNF)-alpha were markedly reduced, while IL-10 levels increased in the positively effective, effective, and moderately effective groups, and IL 12 levels decreased in the positively effective and effective groups. In addition, the levels of IL-6 and TNF-alpha were correlated with a greater number in the efficacy indexes and clinical parameters, followed by IL-10 levels, while the levels of IL-17 and IL-12 had relatively weaker correlations with these indexes and parameters. CONCLUSION: NSAIDs could promote the clinical efficacy of treatment for ankylosing spondylitis by regulating serum levels of proinflammatory cytokines. PMID- 29324185 TI - Ventilator Circuit Trash May Be a Research Treasure. PMID- 29324187 TI - Shock-associated Cardiac Arrest: Vasodilator Therapy May Help. PMID- 29324186 TI - Impact of sodium citrate ingestion during recovery after dehydrating exercise on rehydration and subsequent 40-km cycling time-trial performance in the heat. AB - The purpose of this study was to assess the impact of sodium citrate (CIT) ingestion (600 mg.kg-1) during recovery from dehydrating cycling exercise (DE) on subsequent 40-km cycling performance in a warm environment (32 degrees C). Twenty male nonheat-acclimated endurance athletes exercised in the heat until 4% body mass (BM) loss occurred. After 16 h recovery with consumption of water ad libitum and prescribed diet (evening meal 20 kcal.kg-1, breakfast 12 kcal.kg-1) supplemented in a double-blind, randomized, crossover manner with CIT or placebo (PLC), they performed 40-km time-trial (TT) on a cycle ergometer in a warm environment. During recovery greater increases in BM and plasma volume (PV) concomitant with greater water intake and retention occurred in the CIT trial compared with the PLC trial (p < 0.0001). During TT there was greater water intake and smaller BM loss in the CIT trial than in the PLC trial (p < 0.05) with no between-trial differences (p > 0.05) in sweat loss, PV decrement, ratings of perceived exertion, or TT time (CIT 68.10 +/- 3.28 min, PLC 68.11 +/- 2.87 min). At the end of TT blood lactate concentration was higher (7.58 +/- 2.44 mmol.L-1 vs 5.58 +/- 1.32 mmol.L-1; p = 0.0002) and rectal temperature lower (39.54 +/- 0.50 degrees C vs 39.65 +/- 0.52 degrees C; p = 0.033) in the CIT trial than in the PLC trial. Compared with pre-DE time point, PV had decreased to a lower level in the PLC trial than in the CIT trial (p = 0.0001). In conclusion, CIT enhances rehydration after exercise-induced dehydration but has no impact on subsequent 40 km cycling TT performance in a warm uncompensable environment. PMID- 29324188 TI - "I'm Doing the Best That I Can for Her": Infant-Feeding Decisions of Mothers Receiving Medication-Assisted Treatment for an Opioid Use Disorder. AB - BACKGROUND: Several professional health organizations have made statements endorsing the safety of breastfeeding for women taking medication-assisted treatment for an opioid use disorder. Yet, breastfeeding initiation rates for this population are approximately 50% lower than the general United States' population. Furthermore, little is known about what influences the infant-feeding decisions of these women. Research aim: This study aimed to describe what influences the infant-feeding decisions of women taking medication-assisted treatment for an opioid use disorder. METHODS: Qualitative description was used. We conducted semistructured, individual interviews with mothers ( N = 8) who were receiving medication-assisted treatment during the postpartum period. We analyzed our data using thematic analysis. RESULTS: We identified two themes: (a) what I heard about breastfeeding, and (b) doing what I feel is best for my baby. What I heard about breastfeeding reflects the information and misinformation that women received about breastfeeding. Doing what I feel is best for my baby describes the inner conflict that the women experienced. Most of the women in this study desired to breastfeed; however, all women reported that the social stigma surrounding methadone use strongly influenced their infant-feeding decision. CONCLUSION: This study sheds new light on what influences the infant-feeding decisions of women taking medication-assisted treatment and represents an initial step toward the development of targeted interventions to improve breastfeeding rates for this unique population. PMID- 29324189 TI - Is Cisatracurium the Neuromuscular Blocking Agent of Choice in Acute Respiratory Distress Syndrome? PMID- 29324191 TI - STUDIES ON THE LIFE HISTORY OF TWO CORAL-EATING NUDIBRANCHS OF THE GENUS PHESTILLA. AB - 1. The complete life cycles of two coral-eating aeolid nudibranchs, Phestilla melanobranchia Bergh, 1874 and Phestilla sibogae Bergh, 1905, are described. Information on their life histories includes developmental stages and timing, duration of the veliger stage, veliger behavior, factors necessary for settling and metamorphosis, and adult growth rates, fecundity and longevity. The life cycles of the two Phestilla are similar and their physical and behavioral differences are related to the characteristics of their respective coral prey. 2. P. melanobranchia has planktotrophic development, is negatively phototactic when ready to settle, requires close proximity to living dendrophylliid coral tissue for metamorphosis and has a generation time from egg to egg of 60 days. The dendrophylliid corals on which P. melanobranchia feeds are small, patchy and photonegative in distribution. 3. P. sibogae which has now been under serial cultivation for four years, has lecithotrophic development, is positively phototactic when ready to settle, requires only a chemical factor from living Porites tissue for metamorphosing and has a generation time of 38 days. The Porites corals which P. sibogae feeds on are large, very common and photopositive in distribution. 4. Differences in predation pressure and prey tissue utilization efficiency are proposed as factors influencing the evolution of a significantly faster generation time in Phestilla sibogae than in the closely related P. melanobranchia. PMID- 29324192 TI - THE ESCAPE OF VELIGERS FROM THE EGG CAPSULES OF NASSARIUS OBSOLETUS AND NASSARIUS TRIVITTATUS (GASTROPODA, PROSOBRANCHIA). AB - 1. The loosening of the egg capsule plug prior to escape of the veligers is shown to be chemically mediated in Nassarius obsoletus and N. trivittatus. 2. The hatching substance is not produced continuously during development, but rather in a short pulse beginning just prior to hatching and ending within 4 hours of escaping from the capsule, for N. obsoletus. 3. The hatching substance produced by the embryos of one species is effective only on the capsule plugs of that species, for the two species studied. 4. The substance is functionally short lived, at room temperature in sea water, losing its potency within three hours after its secretion by N. obsoletus. 5. The observed rate at which N. obsoletus veligers leave their egg capsules is shown to be in close agreement with the rate predicted from an equation assuming random movements of individuals within the capsules. PMID- 29324193 TI - STAGES IN THE LIFE HISTORY OF A SYMBIOTIC ZOOXANTHELLA IN PELLETS EXTRUDED BY ITS HOST AIPTASIA TAGETES (DUCH. AND MICH.) (COELENTERATA, ANTHOZOA). AB - 1. Various morphological stages in the life history of the zooxanthella symbiotic with Aiptasia tagetes have been identified in pellets extruded by the actinian host. One of the stages is a motile zoospore. 2. This zoospore resembles that observed by Kawaguti (1944) and differs from those identified in axenic cultures of G. microadriaticum in containing a large accumulation body. Suggestions are made as to the significance of this difference. 3. It is very likely that the zoospore is an infective stage in the life history of the zooxanthella. 4. There is some evidence to suggest that indirect infection of hosts by zooxanthellae is also possible. PMID- 29324194 TI - INVESTIGATION ON THE ECOLOGY AND RESPIRATORY RESPONSES OF THE HEMICHORDATE PTYCHODERA FLAVA TO TIDAL CYCLES AND SALINITY CHANGES. AB - 1. Some aspects of the ecology and respiratory physiology of Ptychodera flava have been studied. 2. Increase in body weight involves a decrease in the rate of oxygen consumption. At high tides, the rates of oxygen uptake of nonbreeding P. flava are 0.7629 (smallest) and 0.3363 (largest) in ml/g/hr. At high tides, mature and spawning female rates are 6.732 (smallest) and 0.8877 (largest) ml/g/hr. Rate of oxygen uptake is a function both of body size and of maturity stage in P. flava. 3. Respiratory responses of 15 specimens of P. flava fell into three classes: 1, showing a rhythm synchronized with tidal phases; 2, showing a tidal rhythm with additional peaks during low tides; or 3, with no detectable rhythm. 4. P. flava reacts to lowered salinity by showing a sudden rise in respiration. The sustained level of respiration is subsequently a little higher than in normal sea water. 5. The deep-seated tidal rhythm shows variations, and it is suggested that locomotor activity, spawning, temperature, and salinity may all be factors involved. PMID- 29324195 TI - ULTRASTRUCTURE OF THE PIGMENTARY SYSTEM AND CHROMATOPHOROTROPIC ACTIVITY IN LAND ISOPODS. AB - 1. The question of the absence of physiological color change in terrestrial isopods was investigated with three species of land isopods (Armadillidium vulgare, Porcellio laevis and Pardioniscus argentinus) and a marine species (Ligia exotica) as reference. 2. The young and adults of the terrestrial isopods do not change color when exposed to dark or light conditions, nor to white or black backgrounds. 3. Light microscopy showed that the pigmentary System of the terrestrial isopods is an apparently syncytial net work containing a dark brown pigment. 4. Electron microscopy revealed that the pigmentary network is only apparently syncytial; its elements are merely contiguous. As compared to chromatophores of Ligia, the elements of the network of land isopods are much poorer in smooth endoplasmic reticulum and have no microtubules. 5. Homogenates of sinus gland and of nerve cord from land isopods induced pigment dispersion in melanophores from Ligia exotica; the effect was proportional to concentration of homogenate. Such extracts had no effect on melanophores of darkened animals. 6. The results obtained with the terrestrial species indicate that these isopods can produce chromatophorotropic-active substances (pigment-dispersing principles) despite their lack of physiological color change. 7. The lack of physiological color change is associated with the disappearance or absence of microtubules and reduction of endoplasmic reticulum, although there is no substantial evidence that these organelles play a role in pigment migration. PMID- 29324196 TI - THE MATERNAL POUCH AND DEVELOPMENT IN THE MARSUPIAL FROG GASTROTHECA RIOBAMBAE (FOWLER). AB - The pouch of Gastrotheca riobambae (Fowler) serves as the location for development of the embryo up to the swimming tadpole stage. The pouch lies under the dorsal integument of the female and, in nonpregnant females, is similar to the integument. Pregnancy is accompanied by increased vascularization of the pouch. Blood capillaries from the corium become closely associated with the epithelial lining of the pouch, and vascularized outgrowths of the pouch partially envelop the embryos. Embryonic development in the pouch is characterized by the presence of peculiar gills, the highly vascularized "bell gills," which expand and flatten against the inner surface of the jelly capsule, forming an individual sac about each embryo and thus establishing a close relationship between embryonic and maternal circulatory systems. After birth of the tadpoles, the gills are soon resorbed and there is regression of the vascularization of the pouch. Reorganization of the tissue and shedding of the lining epithelium restore the pouch to the condition found in the nonpregnant female. PMID- 29324197 TI - SUMMER ABUNDANCE AND ECOLOGY OF ZOOPLANKTON IN THE GULF STREAM. AB - We have described the results of laboratory analyses of 42 horizontal tows using a Clarke-Bumpus plankton sampler with a 100 u emmesh net in the Gulf Stream. Classifications of 20 zooplankton taxa have been made for the 42 hauls. Calanoids dominate the hauls. It was found that the zooplankton population distribution and density varied considerably from haul to haul, but there was no consistent buildup or depletion of population with progress of the flow north in the Gulf Stream. These biological arguments reinforce previous conjectures that there is a geostrophically-balanced inflow of continental shelf and Labrador Sea water that gradually mixes with the Gulf Stream water mass. These inflows provide sources of zooplankton and phytoplankton to the Gulf Stream as it progresses northward. Also, an ecological analysis of the Gulf Stream indicates that the dry organic matter is over an order of magnitude below that which is theoretically possible. PMID- 29324198 TI - COMPARATIVE CHEMOSENSITIVITY TO AMINO ACIDS AND THEIR ROLE IN THE FEEDING ACTIVITY OF BATHYPELAGIC AND LITTORAL CRUSTACEANS. AB - 1. Feeding response exhibition in five marine crustaceans was observed in the presence of a range of concentrations of an amino acid mixture composed of equal parts DL alpha arnino-n-butyric acid, L-glutamic acid and taurine. Gnathophausiaingens, Pleuroncodes planipes, and Cancer antennarius displayed behavioral thresh olds of between 10-10 and 10-12 M; Spirontocaris taylori and Pagurus hirsutiusculus displayed thresholds between 10-7 and 10-9 M. 2. Electrophysiological response thresholds to the amino acid mixture were examined in G. ingens and C. antennarius. The antennular and dactyl receptors of G. ingens displayed thresholds of 10-7 and 10-8 M respectively. Maxilliped and dactyl receptors of C. antennarius both displayed a threshold of 5 x 10-5 M. 3. Panulirus interruptus antennule receptors displayed a degree of specificity to mono- and dicarboxylic amino acids. PMID- 29324199 TI - COMPARISON OF CHROMATOPHOROTROPINS FROM THE HORSESHOE CRAB LIMULUS POLYPHEMUS, AND THE FIDDLER CRAB, UCA PUGILATOR 1. AB - 1. Extracts of the central nervous system of the horseshoe crab, Limulus polyphemus, were assayed for chromatophorotropic activity on the fiddler crab, Uca pugilator. The extracts caused pigment dispersion in the melanophores and pigment concentration in the leucophores but had no effect on the erythrophores. 2. The ethanol-soluble and 95% methanol:chloroform (2:1)-soluble fractions of the central nervous system from the horseshoe crab evoked melanin-dispersing and white pigment-concentrating responses which had larger amplitudes and longer durations than did the responses caused by extracts prepared directly in saline. 3. Neither gel filtration nor acetone fractionation was effective in separating the melanin-dispersing activity from the white pigment-concentrating activity in extracts of the central nervous system of the horseshoe crab. These responses appear to be caused by either the same molecule or by different substances having similar elution patterns from Bio-Gel P-6. 4. Extracts of the eyestalk of the fiddler crab were fractionated on Bio-Gel P-6. The melanin-dispersing, white pigment-dispersing and red pigment-dispersing activities were eluted with an Rf of 0.57, the same value as that of the major peaks of melanin-dispersing and white pigment-concentrating activities from the central nervous system of the horseshoe crab. In contrast, the white pigment-concentrating and red pigment concentrating activities of the fiddler crab separated from the pigment dispersing activities, having been eluted later from the column of Bio-Gel P-6 with an Rf of 0.28. 5. The chromatophorotropic material in the central nervous system of the horseshoe crab is more closely related to the melanin-dispersing material of the fiddler crab than to the white pigment-concentrating hormone of the fiddler crab. 6. The chromatophorotropins in the central nervous system of the horseshoe crab and the radial nerves of the sea star differ from each other in their elution patterns from a column of Bio-Gel P-6 and in the chromatophore responses they evoke in the fiddler crab. PMID- 29324200 TI - TEMPORAL PATTERNS OF SEXUAL AND ASEXUAL REPRODUCTION IN THE COLONIAL ASCIDIAN METANDROCARPA TAYLORI HUNTSMAN. AB - 1. Metandrocarpa taylori Huntsman (1912) is an ovoviviparous colonial ascidian with separate zooids connected by a common basal tunic, which reproduces asexually by pallial budding. 2. Specimens in collections from field populations show maximum periods of sexual reproduction during the summer months. Although approximately 80% of the 1961 summer samples were reproductively active during this period, sexual reproduction continued during the remainder of the year with no less than 30% of the population active at any time. Eggs and testes develop simultaneously within the individual zooids. 3. Asexual reproduction was quantitatively studied in colonies cultured in the intertidal zone. Budding rates are lowest during the summer and continue at a high level during the remainder of the year. These rates are not dependent upon the size or age of the colony, but do derive from variations in rates at which successive bud generations follow one another and from the number of bud offspring produced by each zooid. 4. Although the two modes of reproduction are not mutually exclusive, it is clear that one form predominates in activity during any single season. 5. There is a general direct relationship between sexual reproductive activity and ocean temperature. There is little correlation of reproductive activity with food supply, since either phytoplankton or suspended organic detritus are abundant in Monterey Bay all year. PMID- 29324201 TI - THE MARINE ENCHYTRAEIDAE (ANNELIDA, OLIGOCHAETA) OF THE EASTERN COAST OF NORTH AMERICA WITH NOTES ON THEIR GEOGRAPHICAL DISTRIBUTION AND HABITAT. AB - 1. Marine Enchytraeidae from the Eastern coast of North America were examined. Six genera and thirteen species are reported, four genera and eleven species are new to the American continent. 2. One new genus and two new species are described on material received from the Biotic Census of the Systematics-Ecology Program at the Marine Biological Laboratory: Hemigrania nov. gen., Lumbricillus codensis nov. sp. and Marionina welchi nov. sp. Three species are included in the new genus: Hemigrania postclitellochaeta (Knollner, 1934), Hemigrania monochaeta (Michaelsen, 1888), Hemigrania principissae (Michaelsen, 1907); three species are related to Marionina welchi nov. sp.: Marionina subtilis (Ude, 1896), Marionina paucispina (Eisen, 1904) and Marionina normani (Michaelsen, 1907). 3. Marine Enchytraeidae are found in both littoral and sublittoral biotopes. Four categories of habitats are briefly described, (a) salt marshes, (b) the dirftline of seaweed deposit, (c) intertidal sand beaches, with well-sorted sediment and very small amounts of detritus, (d) the subtidal biotopes with very well-sorted sandy sediments. 4. The marine Enchytraeid fauna is composed of eurythermic cold water species, very abundant on the north eastern coast of North America (the Woods Hole region, Massachusetts), and also present under the warmer latitudes of the Beaufort region, North Carolina. PMID- 29324202 TI - HISTOCHEMICAL STUDY OF GUT NUTRIENT RESERVES IN RELATION TO REPRODUCTION AND NUTRITION IN THE SEA STARS, PISASTER OCHRACEUS AND PATIRIA MINIATA. AB - 1. Histochemical procedures indicate that in Pisaster ochraceus and Patiria miniata a diastase-labile carbohydrate occurs in small quantities as fine granules in the peritoneum and muscle of the gut, and in the columnar epithelia of the stomach and ducts of the pyloric caecae. A diastase-resistant carbohydrate occurs abundantly in the storage cells of the pyloric caeca, usually as a matrix surrounding large granules of protein. Neutral lipid droplets occur in small quantities in the columnar epithelium of the cardiac stomach and are abundant in the storage cells of the pyloric caeca. 2. In Pisaster the pyloric caeca increase in size from June to December and decrease in size during the spring at the time when the gonads are growing. The inverse size relationship suggests the withdrawal of material from the caeca for use by the gonads. The pyloric caeca of Patiria seem to remain fairly constant in size during the breeding cycle. 3. In both species prolonged starvation during the breeding period results in shrinkage of the pyloric caeca and reduction of the nutrient reserves to levels insufficient to support normal gonadal development. Starvation most markedly reduces the histochemically detectable carbohydrate in the pyloric caeca. Stomach lipid is reduced in both species, and most of the caecal lipid disappears in Patiria. Even after twenty months of starvation Pisaster specimens still showed considerable lipid in the caeca. 4. The connective tissue and mucus from most parts of the gut appeared to contain neutral and weakly acid mucopolysaccharide components or a single compound with both neutral and acid residues. Fine granules found at the apices of cells in certain regions of the stomach contain a more acid mucopolysaccharide. 5. The histochemical results correlate well with earlier biochemical data available for the two species. PMID- 29324203 TI - A NEW LILJEBORGIID AMPHIPOD (CRUSTACEA) FROM KERALA, INDIA. AB - A new gammaridean amphipod, Listriella similis is described in detail. This species shows resemblance to L. picta (Norman), L. diffusa J. L. Barnard and L. eriopisa J. L. Barnard, but can be easily distinguished by the shape of the third pleon epimeron and the appearance of the sixth segment of gnathopods 1 and 2. In the light of the present study, the observations of J. L. Barnard (1959) on the family Liljeborgiidae are critically examined. It is found that the three characters mentioned by him for distinguishing the three existing genera of the family, do not go together. Further, it is suggested that the 2-segmented accessory flagellum of antenna 1 in Listriella may serve as an additional character, differentiating it from Liljeborgia. A brief summary of the annual sequence in the salinity fluctuations of the Kayamkulam lake, where from the present species was obtained, is given. It is probable that the association of the animal with the algal communities of the bar mouth region of the lake affords some protection to it in the intertidal. PMID- 29324204 TI - LARVAL DEVELOPMENT OF PAGURUS LONGICARPUS SAY REARED IN THE LABORATORY. III. BEHAVIORAL RESPONSES TO SALINITY DISCONTINUITIES. AB - 1. Each zoeal instar of P. longicarpus was exposed to salinity discontinuities of varying magnitudes. Three distinct behavioral responses were observed: telson flips regardless of the magnitude of the discontinuity; downward swimming when the magnitude of the discontinuity was moderate; passive sinking when the magnitude of the discontinuity was extreme. 2. All zoeal instars avoided water with a salinity of ca. 200/00 or less, well within the range of salinity permitting complete development to the juvenile. 3. Avoidance of low salinity layers in stratified columns by Zoea I and II appeared to be a function of an absolute salinity (S?20-220/00) when the salinity of the lower layer (SL) was less than 250/00 and a function of salinity difference (DeltaS) when SL was greater than 250/00 (DeltaS?80/00 for Zoea I; DeltaS?50/00 for Zoea II). Avoidance of bow salinity layers by Zoea III and IV appeared to be a fuction of absolute salinity (S?200/00) regardless of SL over the range of SL tested. 4. Evidence is presented that the antennules and antennae may not be involved in detection of salinity discontinuities. PMID- 29324205 TI - BEHAVIORAL AND ELECTROPHYSIOLOGICAL STUDIES OF HYDRA. II. PACEMAKER ACTIVITY OF ISOLATED TENTACLES. AB - 1. Electrical potentials associated with coordinated contraction of the longitudinal muscles can be recorded from isolated tentacles of Hydra. In both H. pirardi and H. pseudoligactis these Tentacle Contraction Pulses (TCP's) occur chiefly in bursts, which are more frequent in H. pirardi. The bursts are approximately the same length in the two species but those of H. pirardi contain more pulses. 2. Inter-pulse interval lengths within a burst decrease but then lengthen again toward the end of the burst. Small segments of a tentacle produce the same pulse patterns as whole tentacles, indicating that there are a number of potential pacemakers with similar properties dispersed within a tentacle. 3. Strong illumination increases the burst frequency and the number of pulses per burst. Pulses of mechanical stimuli induce single TCP's and inhibit TCP bursts. Isolated tentacles habituate to repeated mechanical stimuli. Exposure of the tentacle to live or aqueous extracts of Artemia nauplii, or 10-5 M GSH inhibits TCP bursts and monophasic pulses are induced which are associated with asymmetric writhing movements. PMID- 29324206 TI - REMOVAL OF THE FERTILIZATION MEMBRANE OF FERTILIZED EGGS OF URECHIS CAUPO AND DEVELOPMENT OF "MEMBRANELESS" EMBRYOS. AB - It has been shown that the fertilization membrane of the Urechis embryo can be removed by treatment with a sucrose-EDTA solution. The resulting membraneless embryos appear to undergo nearly normal embryogenesis, differing from the controls only in shape, degree of motility and ability to form double-embryos. PMID- 29324207 TI - Oligometastatic Non-Small-Cell Lung Cancer: How Should We Define and Manage It? PMID- 29324208 TI - Solid Organ Transplantation in Patients With a History of Lymphoma. AB - There is an increasing number of long-term survivors of Hodgkin and non-Hodgkin lymphoma. These people may have a need for subsequent solid organ transplantation, often as a result of late effects of their lymphoma treatment. There is abundant literature demonstrating that patients with a history of lymphoma are appropriate candidates for solid organ transplantation. Long-term survival without relapse and with a functioning graft is possible. Patients with a history of post-transplantation lymphoproliferative disorders and patients who have received a prior hematopoietic stem-cell transplantation may also be candidates. Although high-level supporting evidence is not available, most guidelines recommend a waiting period of 2 to 5 years after lymphoma treatment before patients undergo solid organ transplantation. Each patient with a history of lymphoma requires a multidisciplinary approach and should be evaluated on a case-by-case basis before consideration of solid organ transplantation. PMID- 29324209 TI - Using Process Improvement Tools to Improve the Care of Patients With Neutropenic Fever in the Emergency Room. AB - PURPOSE: The purpose of this study was to improve the care of patients with neutropenic fever in an academic acute care hospital's emergency room (ER). METHODS: Using the define, measure, analyze, improve, control method, a two-phase project with three critical to quality metrics (reduction in time to antibiotic administration, increase in percentage of patients with neutropenic fever identified as an oncology emergency, and increase in patients cohorted on oncology units) was completed. Phase I consisted of implementation of best practices (ie, use of neutropenic fever protocol and order set, altering ER workflow, and educating patients and staff). In phase II, the team drew from cardiac and stroke alerts and response teams and implemented an innovative hospital-wide overhead neutropenic fever alert and an ER neutropenic fever response team. RESULTS: After implementing phase I interventions, the time to antibiotic administration decreased from a mean of 100 minutes at baseline to a mean of 67 minutes. After implementing phase II interventions, the mean decreased by 73%, from 100 minutes at baseline to 27 minutes. Furthermore, after phase II interventions, 89% of neutropenic patients were assigned an Emergency Severity Index of 2 and 88% were placed appropriately in a bed on the oncology floor on admission, compared with 11% and 74%, respectively, at baseline. CONCLUSION: Interventions were effective at improving three critical to quality metrics. Multiple iterations of the define, measure, analyze, improve, control cycle, together with new innovative interventions, were crucial to meeting project goals. PMID- 29324210 TI - Between the Rock and Hard Place: The Evaluation of a Patient With a History of Cancer for Solid Organ Transplantation. PMID- 29324211 TI - Solid Organ Transplantation in Selected Patients With a History of Lymphoma: Has the Time Come? PMID- 29324213 TI - JHL News. PMID- 29324212 TI - Managing Patients With Oligometastatic Non-Small-Cell Lung Cancer. AB - Metastatic lung cancer has long been considered incurable, with the goal of treatment being palliation. However, a clinically meaningful number of these patients with limited metastases (approximately 25%) are living long term after definitive treatment to all sites of active disease. These patients with so called oligometastatic disease likely represent a distinct clinical group who may possess a more indolent biology compared with their more widely metastatic counterparts. Hellman and Weichselbaum proposed the existence of the oligometastatic state, on the basis of the spectrum theory of cancer spread. The literature suggests that an oligometastatic state exists in patients with non small-cell lung cancer (NSCLC). This observation in the setting of rapidly evolving systemic therapies, including immune checkpoint inhibitors and an increasing number of targeted therapies, represents a unique clinical opportunity. Metastasis-directed therapies to address sites of disease include surgery (metastasectomy) and/or radiation therapy. Available evidence suggests that treating patients with limited or oligometastases may improve outcomes in a meaningful way; however, the majority of the randomized data includes patients with intracranial metastatic disease, and there are limited robust, randomized data available in the setting of NSCLC with only extracranial sites of metastatic disease. Ongoing randomized trials, including NRG-LU002 and the UK Conventional Care Versus Radioablation (Stereotactic Body Radiotherapy) for Extracranial Oligometastases trial, are aimed at evaluating this question further. One of the current limitations of aggressive treatment of oligometastatic NSCLC is the inability to accurately identify these patients before therapy, yet molecular markers, including microRNA profiles, are being investigated as a promising way to identify these patients. PMID- 29324216 TI - Self-Reported Cognitive Impairment Across Racial/Ethnic Groups in the United States, National Health Interview Survey, 1997-2015. AB - INTRODUCTION: The primary objectives of this study were 1) to examine trends of self-reported cognitive impairment among 5 major racial/ethnic groups during 1997 2015 in the United States and 2) to examine differences in the trends across these groups. METHODS: Data were from the National Health Interview Survey (NHIS). The sample consisted of 155,682 people aged 60 or older. Respondents were asked to report whether any family member was "limited in any way because of difficulty remembering or because of experiencing periods of confusion." Race/ethnicity categories were non-Hispanic white, non-Hispanic black, Native American, Hispanic, and Asian. We applied hierarchical age-period-cohort cross classified random-effects models for the trend analysis. All analyses accounted for the complex survey design of NHIS. RESULTS: The overall rate of self-reported cognitive impairment increased from 5.7% in 1997 to 6.7% in 2015 (P for trend <.001). Among non-Hispanic white respondents, the rate increased from 5.2% in 1997 to 6.1% in 2015 (slope = 0.14, P for trend <.001). We observed no significant trend in rate of cognitive impairment in other groups. After we controlled for covariates, we found that Asian (B = 0.31), non-Hispanic black (B = 0.37), Hispanic (B = 0.25), and Native American (B = 0.87) respondents were more likely than non-Hispanic white respondents to report cognitive impairment (P <.001 for all). CONCLUSION: We found an increased rate of self-reported cognitive impairment in older adults of 5 major racial/ethnic groups from 1997 through 2015 in the United States. However, the rate of self-reported cognitive impairment was low, which may suggest underreporting. There is a need to further promote awareness of the disease among individuals, family members, and health care providers. PMID- 29324218 TI - Hours Lost to Planned and Unplanned Dental Visits Among US Adults. AB - INTRODUCTION: Poor oral health is associated with lost hours at work or school, which may affect a person's productivity. The objective of our study was to estimate work or school hours lost to dental visits among adults aged 18 and older by the types of visits (emergency or unplanned; routine, planned, or orthodontic; or cosmetic) and to determine the factors associated with hours lost. METHODS: We used the most recent Oral Health Supplement data, from the 2008 National Health Interview Survey (NHIS), to estimate the total hours lost at work or school for dental visits among adults in the United States. The associations of the hours lost in unplanned and planned dental visits with socioeconomic characteristics, oral health status, and affordability were calculated. We used chi2 tests and logistic regression to determine associations at P < .05. RESULTS: An average of 320.8 million work or school hours were lost annually for dental care in the United States, of which 92.4 million hours were for emergency (unplanned) care (0.99 h/adult), 159.8 million for routine (planned) care or orthodontic care (1.71 h/adult), and 68.6 million for cosmetic care (0.73 h/adult). Adults with poor oral health were more likely to lose one or more hours in unplanned dental visits (OR = 5.60; 95% confidence interval [CI], 3.25-9.63) than those who reported very good oral health. Not being able to afford dental care was positively associated with more work hours lost in unplanned care (odds ratio [OR] = 2.56; 95% CI, 1.76-3.73). Compared with Hispanic adults, non Hispanic white adults (OR = 2.09; 95% CI, 1.40-3.11) and non-Hispanic Asian adults and adults of other races/ethnicities (OR =1.91; 95% CI, 1.06-3.47) were more likely to lose any hours for planned care. Consistently, those with more than a high school education were more likely to lose any hours in planned care (OR = 1.39; 95% CI, 1.06-1.83) than those with a high school education or less. CONCLUSIONS: Dental problems result in hours lost from work and may adversely affect a person's productivity. There is disparity in lost hours at work by race/ethnicity and dental care affordability. PMID- 29324217 TI - Individual-Level Fitness and Absenteeism in New York City Middle School Youths, 2006-2013. AB - INTRODUCTION: Youth health-related fitness positively affects academic outcomes, although limited research has focused on the relationship between fitness and school absenteeism. We examined the longitudinal association between individual children's fitness and lagged school absenteeism over 4 years in urban middle schools. METHODS: Six cohorts of New York City public school students were followed from grades 5 through 8 (school years 2006-2007 through 2012-2013; n = 349,381). A 3-level longitudinal generalized linear mixed model was used to test the association of change in fitness composite percentile scores and 1-year lagged child-specific days absent. RESULTS: Adjusted 3-level negative binomial models showed that students with a more than 20% increase, 10% to 20% increase, less than 10% increase or decrease, and 10% to 20% decrease in fitness from the year prior had 11.9% (95% confidence interval [CI], 7.2-16.8), 6.1% (95% CI, 1.0 11.4), 2.6% (95% CI, -1.1 to 6.5), and 0.4% (95% CI, -4.3 to 5.4) lower absenteeism compared with students with a more than 20% fitness decrease. CONCLUSION: Cumulative effects of fitness improvement could have a significant impact on child absenteeism over time, particularly in high-need subgroups. Future research should examine the potential for school-based fitness interventions to reduce absenteeism rates, particularly for youths who have fitness drop-offs in adolescence. PMID- 29324219 TI - Changing the Stage, Grade and Histological Subtypes of Renal Cell Carcinomas during 10 Years Period. AB - Renal cell carcinomas (RCCs) account 80-85% of all primary renal neoplasms and originate from the renal cortex. The patients who underwent radical or partial nephrectomy for renal tumour in our unit between January 2005 and 2015 were evaluated retrospectively. The patients were divided into two groups; group 1 includes patients who were treated between January 2005 and December 2009, group 2 those from January 2010 to 2015. There were 103 patients in group 1. The patients were between 21 and 89 years with mean age of 61.46 year. Renal cell carcinomas account 83.4% of the patients, benign renal tumours were 8.7% and transitional cell carcinomas were 7.7% of the patients in group 1. A total of 32.5% RCCs were classified as pT1a, 24.4% as pT1b, 15.1% as pT2a, 11.6% as pT2b, 15.1% as pT3a and 1.1% as pT4. There were 202 patients in group 2 and the patients were between 27 and 81 years with mean age of 58.5 year. Renal cell carcinomas comprised the main bulk of the tumours with 182 nephrectomy specimens. According to the pathological classification of RCCs, 51 specimens were found as pT1a, 54 were pT1b, 13 were pT2a, 14 were pT2b, 48 were pT3a and 2 were pT4. Although, the incidence of small renal masses has been increasing with widespread use of imaging techniques and recent advancements, the proportion of high grade and advanced stage renal tumours increased during the study period. PMID- 29324220 TI - 5-fluorouracil Toxicity Mechanism Determination in Human Keratinocytes: in vitro Study on HaCaT Cell Line. AB - 5-fluorouracil (5-FU) and capecitabine therapy is often accompanied by palmar plantar erythrodysesthesia (PPE) which is manifestation of 5-FU toxicity in keratinocytes. The main mechanisms of 5-FU action are thymidylate synthase (TS) inhibition which can be abrogated by thymidine and strengthened by calciumfolinate (CF) and incorporation of fluorouridinetriphosphate into RNA which can be abrogated by uridine. For proper PPE treatment 5-FU mechanism of action in keratinocytes needs to be elucidated. We used the 5-FU toxicity modulators uridine, thymidine and CF to discover the mechanism of 5-FU action in human keratinocyte cell line HaCaT. To measure the cellular viability, we used MTT test and RTCA test. CF did not augment 5-FU toxicity and 5-FU toxicity was weakened by uridine. Therefore, the primary mechanism of 5-FU toxicity in keratinocytes is 5-FU incorporation into RNA. The uridine protective effect cannot fully develop in the presence of CF. Thymidine addition to 5-FU and uridine treated cells not only prevents the toxicity-augmenting CF effect but it also prolongs the 5-FU treated cells survival in comparison to uridine only. Therefore, it can be assumed that in the presence of uridine the 5-FU toxicity mechanism is switched from RNA incorporation to TS inhibition. Although particular 5-FU toxicity mechanisms were previously described in various cell types, this is the first time when various combinations of pyrimidine nucleosides and CF were used for 5-FU toxicity mechanism elucidation in human keratinocytes. We suggest that for PPE treatment ointment containing uridine and thymidine should be further clinically tested. PMID- 29324221 TI - Catastrophic Left Ventricular Thrombosis Complicating Extra-corporeal Membrane Oxygenation: A Case Report. AB - A massive left ventricular thrombosis represents a rare however, catastrophic complication of a central veno-arterial extra-corporeal membrane oxygenation. We report a case of such complication in a patient with severe left ventricular dysfunction after cardiac surgery. Its management and preventive measures are described and discussed. PMID- 29324222 TI - Acquired Amegakaryocytic Thrombocytopenic Purpura Progressing into Aplastic Anemia. AB - Acquired amegakaryocytic thrombocytopenic purpura (AATP) is a rare hematological disorder characterized by severe thrombocytopenia and a complete or near-to complete absence of megakaryocytes in the bone marrow, while granulopoiesis, as well as erythropoiesis are usually preserved. Although autoimmune mechanisms are believed to be causative, the exact underlying pathogenesis is not known. To date, only few cases have been reported and management of this disease remains controversial with immunosuppression being the treatment modality of choice in the majority of patients. In this article, we report a case of newly acquired AATP without an associated autoimmune disease, refractory to corticoids, intravenous immunoglobulin (IVIG) and second-generation TPO (thrombopoietin) agonists, which have recently been approved for the treatment of thrombocytopenia. Finally, in accordance with other reports, disease progression into aplastic anemia has occurred. PMID- 29324223 TI - Navigating the Microbiota Seas: Triangulation Finds a Way Forward. AB - Identifying members of the intestinal microbiota that play causal roles in shaping human disease susceptibility has been an ongoing challenge. In their recent paper in Nature, Surana and Kasper (2017) present a new strategy that may help "triangulate" causal and therapeutically useful bacteria from the human gut. PMID- 29324224 TI - Good Bug, Bad Bug: Breaking through Microbial Stereotypes. AB - Our expanding knowledge of microbial mechanisms is challenging the notion of "good" versus "bad" microbes and encouraging a better understanding of their roles in various contexts before their widespread therapeutic and clinical application. The intestinal microbe Akkermansia muciniphila, a promising probiotic with an emerging cautionary tale, best highlights this challenge. PMID- 29324226 TI - Human-Specific Adaptations in Vpu Conferring Anti-tetherin Activity Are Critical for Efficient Early HIV-1 Replication In Vivo. AB - The HIV-1-encoded accessory protein Vpu exerts several immunomodulatory functions, including counteraction of the host restriction factor tetherin, downmodulation of CD4, and inhibition of NF-kappaB activity to facilitate HIV-1 infection. However, the relative contribution of individual Vpu functions to HIV 1 infection in vivo remained unclear. Here, we used a humanized mouse model and HIV-1 strains with selective mutations in vpu to demonstrate that the anti tetherin activity of Vpu is a prerequisite for efficient viral spread during the early phase of infection. Mathematical modeling and gain-of-function mutations in SIVcpz, the simian precursor of pandemic HIV-1, corroborate this finding. Blockage of interferon signaling combined with transcriptome analyses revealed that basal tetherin levels are sufficient to control viral replication. These results establish tetherin as a key effector of the intrinsic immune defense against HIV-1, and they demonstrate that Vpu-mediated tetherin antagonism is critical for efficient viral spread during the initial phase of HIV-1 replication. PMID- 29324225 TI - The Marburgvirus-Neutralizing Human Monoclonal Antibody MR191 Targets a Conserved Site to Block Virus Receptor Binding. AB - Since their first identification 50 years ago, marburgviruses have emerged several times, with 83%-90% lethality in the largest outbreaks. Although no vaccines or therapeutics are available for human use, the human antibody MR191 provides complete protection in non-human primates when delivered several days after inoculation of a lethal marburgvirus dose. The detailed neutralization mechanism of MR191 remains outstanding. Here we present a 3.2 A crystal structure of MR191 complexed with a trimeric marburgvirus surface glycoprotein (GP). MR191 neutralizes by occupying the conserved receptor-binding site and competing with the host receptor Niemann-Pick C1. The structure illuminates previously disordered regions of GP including the stalk, fusion loop, CX6CC switch, and an N terminal region of GP2 that wraps about the outside of GP1 to anchor a marburgvirus-specific "wing" antibody epitope. Virus escape mutations mapped far outside the MR191 receptor-binding site footprint suggest a role for these other regions in the GP quaternary structure. PMID- 29324228 TI - LACTATEing Salmonella: A Host-Derived Fermentation Product Fuels Pathogen Growth. AB - Infection by Salmonella enterica serovar Typhimurium is accompanied by dysbiosis and a decrease of microbiota-derived butyrate. In this issue of Cell Host & Microbe, Gillis et al. (2018) demonstrate that the lack of butyrate reprograms colonic epithelial metabolism toward lactate fermentation. Lactate is then used as a respiratory electron donor, supporting Salmonella growth and thus promoting infection. PMID- 29324229 TI - Enteric Viruses Hitch a Ride on the Evolutionary Highway. AB - RNA viruses can recombine their genetic material during co-infection. However, the in vivo frequency of co-infections is unclear. In this issue of Cell Host & Microbe, Erickson et al. (2018) demonstrate that an enteric RNA virus concentrates itself through multi-virion binding to bacteria, thus increasing genetic recombination and virus adaptability. PMID- 29324230 TI - Neutrophils Cause an Intravascular Traffic Jam. AB - Neutrophil swarming is defined by large numbers of cells simultaneously and rapidly migrating to a site of injury or infection. In this issue of Cell Host & Microbe, Lee et al. (2018) demonstrate that intravascular swarming of neutrophils occurs in response to Candida albicans infection and causes vascular occlusion and pathological sequelae. PMID- 29324227 TI - Getting the "Kill" into "Shock and Kill": Strategies to Eliminate Latent HIV. AB - Despite the success of antiretroviral therapy (ART), there is currently no HIV cure and treatment is life long. HIV persists during ART due to long-lived and proliferating latently infected CD4+ T cells. One strategy to eliminate latency is to activate virus production using latency reversing agents (LRAs) with the goal of triggering cell death through virus-induced cytolysis or immune-mediated clearance. However, multiple studies have demonstrated that activation of viral transcription alone is insufficient to induce cell death and some LRAs may counteract cell death by promoting cell survival. Here, we review new approaches to induce death of latently infected cells through apoptosis and inhibition of pathways critical for cell survival, which are often hijacked by HIV proteins. Given advances in the commercial development of compounds that induce apoptosis in cancer chemotherapy, these agents could move rapidly into clinical trials, either alone or in combination with LRAs, to eliminate latent HIV infection. PMID- 29324232 TI - Insect Gut Microbiota: Accessories to the Bite. AB - The Leishmania parasite is transmitted via the bite of a sand fly. In this issue of Cell Host & Microbe, Dey et al. (2018) report that sand fly gut microbiota are also transferred to the bite site, promoting neutrophil recruitment and parasite dissemination to distal organs. PMID- 29324231 TI - Decoding a Salmonella Typhi Regulatory Network that Controls Typhoid Toxin Expression within Human Cells. AB - Salmonella Typhi is the cause of typhoid fever, a major global health concern. An essential virulence factor of this pathogen is typhoid toxin. In contrast to most AB-type toxins, typhoid toxin is exclusively expressed by intracellular bacteria. The regulatory networks that ensure this unique gene expression pattern are unknown. Here, we developed FAST-INSeq, a genome-wide screening approach to identify S. Typhi genes required for typhoid toxin expression within infected cells. We find that typhoid toxin expression is controlled by a silencing and counter-silencing mechanism through the opposing actions of the PhoP/PhoQ two component regulatory system and the histone-like protein H-NS. The screen also identified bacterial mutants that alter the proportion of intracellular S. Typhi that reside within an intravacuolar environment, which was essential for toxin expression. Collectively, these data describe a regulatory mechanism that allows a bacterial pathogen to exclusively express a virulence factor when located within a specific intracellular compartment. PMID- 29324233 TI - BCG Vaccination Protects against Experimental Viral Infection in Humans through the Induction of Cytokines Associated with Trained Immunity. AB - The tuberculosis vaccine bacillus Calmette-Guerin (BCG) has heterologous beneficial effects against non-related infections. The basis of these effects has been poorly explored in humans. In a randomized placebo-controlled human challenge study, we found that BCG vaccination induced genome-wide epigenetic reprograming of monocytes and protected against experimental infection with an attenuated yellow fever virus vaccine strain. Epigenetic reprogramming was accompanied by functional changes indicative of trained immunity. Reduction of viremia was highly correlated with the upregulation of IL-1beta, a heterologous cytokine associated with the induction of trained immunity, but not with the specific IFNgamma response. The importance of IL-1beta for the induction of trained immunity was validated through genetic, epigenetic, and immunological studies. In conclusion, BCG induces epigenetic reprogramming in human monocytes in vivo, followed by functional reprogramming and protection against non-related viral infections, with a key role for IL-1beta as a mediator of trained immunity responses. PMID- 29324234 TI - Sphingosine-1-phosphate mediates the therapeutic effects of bone marrow mesenchymal stem cell-derived microvesicles on articular cartilage defect. AB - Microvesicles (MVs) are emerging as a new mechanism of intercellular communication by transferring cellular components to target cells, yet their function in disease is just being explored. However, the therapeutic effects of MVs in cartilage injury and degeneration remain unknown. We found MVs contained high levels of sphingosine-1-phosphate (S1P) compared with the original bone marrow mesenchymal stem cells (MSCs). The enrichment of S1P in MVs was mediated by sphingosine kinase 1 (SphK1), but not by sphingosine kinase 2 (SphK2). Co culture of human chondrocytes with MVs resulted in increased proliferation of chondrocytes in vitro, which was mediated by activation of S1P receptor 1 (S1PR1) expressed on chondrocytes. Meanwhile, MVs inhibited interleukin 1 beta-induced human chondrocytes apoptosis in a dose dependent manner. Furthermore, uptake of MVs by primary cultures of human chondrocytes was mediated by CD44 expressed by MVs. Anti-CD44 antibody significantly reduced the uptake of fluorescent protein labeled MVs by chondrocytes. Further, blocking S1P by its neutralizing antibody significantly inhibited the therapeutic effects of MVs in vivo. Taken together, MVs showed therapeutic potential for treatment of clinical cartilage injury. This therapeutic potential is due to CD44-mediated uptake of MVs by chondrocytes and the S1P/S1PR1 axis-mediated proliferative effects of MVs on chondrocytes. PMID- 29324235 TI - A biphasic effect of cross-modal priming on visual shape recognition. AB - We used a cross-modal priming paradigm to evoke a biphasic effect in visual short term memory. Participants were required to match the memorandum (a visual shape, either spiky or curvy) to a delayed probe (a shape belonging to the same category). In two-thirds of trials the sequence of shapes was accompanied by a task-irrelevant sound (either tzk or upo, cross-modally correspondent to spiky and curvy shape categories, respectively). The biphasic effect occurred when a congruent vs. incongruent sound was presented 200ms after the memorandum, while it did not occur when the sound was presented 200ms before or simultaneously with it. The biphasic pattern of recognition sensitivities was revealed by an interaction between cross-modal congruency and probe delay, such that sensitivity was higher for visual shapes paired with a congruent rather than incongruent sound with a 300-ms delay, while the opposite was true with a 1300-ms delay. We suggest that this biphasic pattern of recognition sensitivities was dependent on the task-irrelevant sound activating different levels of shape processing as a function of the relative timing of sound, memorandum, and probe. PMID- 29324236 TI - IRF1 up-regulates isg15 gene expression in dsRNA stimulation or CSFV infection by targeting nucleotides -487 to -325 in the 5' flanking region. AB - Interferon (IFN)-stimulated gene 15 (ISG15) encodes a ubiquitin-like protein that is heavily involved in immune response elicitation. As an important member of interferon regulatory factor (IRF) family, IRF1 can activate the expression of multiple genes, including the human optineurin gene (Sudhakar et al., 2013). In this study, a sequence in the promoter region of the optineurin gene was compared to the 5' flanking region of the porcine isg15 gene. Porcine IRF1 also possesses antiviral activity against several swine viruses (Li et al., 2015), but the mechanism is not well understood. Herein, we report that porcine IRF1 and ISG15 were up-regulated in porcine kidney (PK-15) cells following stimulation with double-stranded RNA (dsRNA) or classical swine fever virus (CSFV) infection. We also found that siRNA-mediated knockdown of IRF1 expression resulted in lower ISG15 expression in response to polyinosinic:polycytidylic acid [poly(I:C)] or CSFV infection. The overexpression of IRF1 resulted in ISG15 up-regulation. IRF1 was shown to translocate to the nucleus in response to dsRNA stimulation. To further identify the functional domain of the isg15 gene that promotes IRF1 transcriptional activity, firefly luciferase and ISG15 reporter systems were constructed. The results of the firefly luciferase and ISG15 reporter assay suggested that IRF1 mediates the up-regulation of ISG15. Nucleotides -487 to 325, located in the 5' flanking region of the isg15 gene, constituted the promoter region of IRF1. ChIP assay indicated that IRF1 protein was able to interact with the DNA in the 5'fr of isg15 gene in cells. As an innate immune response protein with broad-spectrum antiviral activity, the up-regulation of ISG15 mediated by IRF1 in porcine cells is reported for the first time. These results warrant further investigation into the antiviral activity of porcine IRF1 against reported swine viruses. PMID- 29324237 TI - DNA induction of MDM2 promotes proliferation of human renal mesangial cells and alters peripheral B cells subsets in pediatric systemic lupus erythematosus. AB - The study is aimed to investigate the role of MDM2 in the pathogenesis of lupus nephritis (LN) in pediatric SLE (pSLE). We confirmed that MDM2 expression was increased in peripheral blood mononuclear cells (PBMCs) as well as renal specimen of SLE compared with that of controls by western blot and immunofluorescence staining. Percentage of apoptotic and necrotic CD4+T, CD8+T and B cells were detected by flow cytometry respectively and levels of plasma cell free DNA (cfDNA) were quantified in SLE and healthy controls (HC). We also proved that elevated apoptotic and necrotic CD4+T cells were the main cause for increased plasma levels of cfDNA in pSLE. Additionally, upon DNA transfection MDM2 increased while P53 and P21 decreased in human renal mesangial cells (HRMC), with concomitant increase in proliferation rate and proportion of cells in S phase, as demonstrated by cell proliferation assay and cell cycle analysis. However, MDM2 inhibition reversed the trend. Furthermore, percentage of switched memory B cells decreased and proportion of double negative B cells increased upon blockage of MDM2 in PBMC. In summary, our study provided the first evidence that DNA induction of MDM2 promotes proliferation of HRMC and alters peripheral B cells subsets in pSLE. Thus our study has not only elucidated the pathogenesis of MDM2 in pediatric LN but also provided a novel target for drug development. In conclusion, our data suggested that apoptosis, cfDNA and MDM2 could form a pathological axis in SLE, especially in pSLE. PMID- 29324238 TI - Immunization with recombinant FliD confers protection against Helicobacter pylori infection in mice. AB - Nearly half of the world's population is infected with Helicobacter pylori. Clinical manifestations of this infection range from gastritis and peptic ulcers to gastric adenocarcinoma and lymphoma. Due to the emerging of antibiotic resistant strains and poor patient compliance of the antibiotic therapy, there is increasing interest in the development of a protective vaccine against H. pylori infection. The bacterial protein FliD forms a capping structure on the end of each flagellum which is critical to prevent depolymerization and structural degradation. In this study, the potential of FliD as a prospective H. pylori subunit vaccine was assessed. For this purpose, immunogenicity and protective efficacy of recombinant FliD (rFliD) from H. pylori was evaluated in C57BL/6 mice. Purified rFliD was formulated with different adjuvants and administered via subcutaneous or oral route. Subcutaneous immunization with rFliD elicited predominantly mixed Th1 and Th17 immune responses, with high titers of specific IgG1 and IgG2a. Splenocytes of immunized mice exhibited strong antigen-specific memory responses, resulting in the secretion of high amounts of IFN-gamma and IL 17, and low levels of IL-4. Immunization with rFliD caused a significant reduction in H. pylori bacterial load relative to naive control mice (p < 0.001), demonstrating a robust protective effect. Taken together, these results suggest that subcutaneous vaccination with rFliD formulated with CpG or Addavax could be considered as a potential candidate for the development of a subunit vaccine against H. pylori infection. PMID- 29324240 TI - Cognitive science in the era of artificial intelligence: A roadmap for reverse engineering the infant language-learner. AB - Spectacular progress in the information processing sciences (machine learning, wearable sensors) promises to revolutionize the study of cognitive development. Here, we analyse the conditions under which 'reverse engineering' language development, i.e., building an effective system that mimics infant's achievements, can contribute to our scientific understanding of early language development. We argue that, on the computational side, it is important to move from toy problems to the full complexity of the learning situation, and take as input as faithful reconstructions of the sensory signals available to infants as possible. On the data side, accessible but privacy-preserving repositories of home data have to be setup. On the psycholinguistic side, specific tests have to be constructed to benchmark humans and machines at different linguistic levels. We discuss the feasibility of this approach and present an overview of current results. PMID- 29324239 TI - How do glutathione antioxidant enzymes and total antioxidant status respond to air pollution exposure? AB - This study aims to investigate how antioxidant enzyme activity and overall antioxidant capacity respond to short-term changes in exposure to air pollution. 201 participants were recruited before- and followed up during- and after- the 2008 Beijing Olympics. Serum levels of antioxidant enzymes including glutathione S-transferases (GST), glutathione peroxidase (GPx), glutathione reductase (GR), and total antioxidant status (TAS) were measured. We used linear mixed-effects models to compare changes in antioxidant enzymes across the three periods after adjusting for potential confounding factors. Among all participants, glutathione peroxidase (GPx) levels decreased by 12.0% when air pollution dropped by 50-60% during the Olympics and increased by 6.5% when air pollution levels rose after the Olympics. The magnitude of increase among males, smokers, and older individuals was relatively smaller compared to females, nonsmokers, and younger individuals. Among all participants, total antioxidant status (TAS) significantly decreased by 6.23% during the games and continued to decrease by 4.41% after the games. However, among females, nonsmokers, and younger participants, there was an increase in TAS response to the elevated air pollution levels. Our study observed strong responses in GPx and TAS levels to the short-term decrease and increase of air pollution levels and responses varied among subgroups. PMID- 29324241 TI - Low-dimensional representation of cardiac motion using Barycentric Subspaces: A new group-wise paradigm for estimation, analysis, and reconstruction. AB - One major challenge when trying to build low-dimensional representation of the cardiac motion is its natural circular pattern during a cycle, therefore making the mean image a poor descriptor of the whole sequence. Therefore, traditional approaches for the analysis of the cardiac deformation use one specific frame of the sequence - the end-diastolic (ED) frame - as a reference to study the whole motion. Consequently, this methodology is biased by this empirical choice. Moreover, the ED image might be a poor reference when looking at large deformation for example at the end-systolic (ES) frame. In this paper, we propose a novel approach to study cardiac motion in 4D image sequences using low dimensional subspace analysis. Instead of building subspaces relying on a mean value we use a novel type of subspaces called Barycentric Subspaces which are implicitly defined as the weighted Karcher means of k+1 reference images instead of being defined with respect to one reference image. In the first part of this article, we introduce the methodological framework and the algorithms used to manipulate images within these new subspaces: how to compute the projection of a given image on the Barycentric Subspace with its coordinates, and the opposite operation of computing an image from a set of references and coordinates. Then we show how this framework can be applied to cardiac motion problems and lead to significant improvements over the single reference method. Firstly, by computing the low-dimensional representation of two populations we show that the parameters extracted correspond to relevant cardiac motion features leading to an efficient representation and discrimination of both groups. Secondly, in motion estimation, we use the projection on this low-dimensional subspace as an additional prior on the regularization in cardiac motion tracking, efficiently reducing the error of the registration between the ED and ES by almost 30%. We also derive a symmetric and transitive formulation of the registration that can be used both for frame-to frame and frame-to-reference registration. Finally, we look at the reconstruction of the images using our proposed low-dimensional representation and show that this multi-references method using Barycentric Subspaces performs better than traditional approaches based on a single reference. PMID- 29324242 TI - Expression profiling of the Dolichos lablab lectin during germination and development of the seed. AB - The temporal expression of the field bean (Dolichos lablab) galactose specific lectin, DLL-II, during germination, post-germination and seed development was evaluated using Native-PAGE followed by activity staining, immunodetection and quantitative Real Time PCR (qPCR). A rapid and steep decline in the polyphenol oxidase (PPO) and hemagglutinating activity during the initial stages of germination, which did not correlate with the slow decline in total protein was observed. During post germination period, PPO and hemagglutination activities were negligible, whereas a rapid resorption of the protein was evident. These results suggest that DLL-II is not a storage protein. The presence of mRNA in the quiescent seed and initial stages of germination are indicative of a very stable mRNA. DLL-II was expressed in high copies during seed development and increased dramatically between 10 and 20 days after flowering (DAF), suggesting a switch over stage in DLL-II expression. Transcript levels reached a maximum at the mature stage of seed development. Among the non-seed tissues examined, root showed the highest level. The high affinity binding to kinetin and indole acetic acid, the key hormones that regulate root development and its vascular differentiation add a new dimension to the physiological role of DLL-II in the seed. This finding, coupled with the PPO and hemagglutinating activity makes DLL II, truly a multifunctional protein. PMID- 29324243 TI - Using versus liking: Young children use ownership to predict actions but not to infer preferences. AB - Three experiments show that young children (N = 384) use ownership to predict actions but not to infer preferences. In Experiment 1, 3- to 6-year-olds considered ownership when predicting actions but did not expect it to trump preferences. In Experiment 2, 4- and 5-year-olds, but not 3-year-olds, used ownership to predict actions, and 5-year-olds grasped that an agent would use his or her own property despite preferring someone else's. This experiment also showed that relating an agent to an object interfered with 3- and 4-year-olds' judgments that a more attractive object is preferred. Finally, Experiment 3 found that 3- and 4-year-olds do not believe that owning an object increases regard for it. These findings are informative about the kinds of information children use to predict actions and the inferences they make from ownership. The findings also reveal specificity in how children use ownership to make judgments about others, and suggest that children more closely relate ownership to people's actions than to their desires. PMID- 29324244 TI - How social status influences our understanding of others' mental states. AB - The current study investigated whether children's relative social status within a context influences their ability to identify others' mental states. Across two experiments, 3- to 7-year-olds (N = 103) were randomly assigned to hold either an advantaged or disadvantaged social status and were assessed on their ability to accurately identify others' mental states (via false-belief and belief-emotion "theory of mind" assessments). When participants' status was manipulated by a structural factor (gender; Experiment 1), participants with disadvantaged status were more likely than participants with advantaged status to pass the false belief and belief-emotion assessments. When status was manipulated by an individual factor (performance; Experiment 2), participants with disadvantaged status were more likely to pass the false-belief assessment but not the belief emotion assessment. Results provide the first empirical evidence that an individual's contextualized perspective (i.e., his or her social status situated within a given context) influences the individual's ability to identify others' mental states. PMID- 29324245 TI - Heavy/light chain assay as a biomarker for diagnosis and follow-up of multiple myeloma. AB - BACKGROUND: The heavy-light chain (HLC) assay enables the accurate measurement of each isotype-specific heavy and light chain (i.e., IgGK, IgGlambda, IgAK, and IgAlambda) and the derivation of an HLC-pair ratio. However, to date, only limited data have validated the usefulness of serial HLC measurements in the routine follow-up of intact immunoglobulin multiple myeloma (MM) patients. METHODS: A total of 36 diagnostic and 671 post-treatment sera from 115 IgG and 61 IgA MM patients were assessed with capillary zone electrophoresis, immunosubtraction electrophoresis, total immunoglobulin measurement, free light chain, and HLC assay. The correlations between M-protein levels and the HLC and FLC assay-derived parameters were examined and the clinical significance of the biomarkers was evaluated according to patients' status. RESULTS: Involved HLC (iHLC) was the best biomarker correlating with M-protein concentration in both IgG and IgA MM, and could provide a surrogate marker substituting M-protein levels to follow the course of the disease, especially in beta-migrating IgA M proteins. The distribution of iHLC values as well as HLC-pair ratios (rHLC) yielded significantly different results among the various response categories in both IgG and IgA MM. In addition, we detected 2 cases in which an abnormal rHLC in a stringent complete remission (sCR) sample was a marker of early non symptomatic relapse. CONCLUSION: In this study of a cohort of 176 patients in a routine clinical setting, we have provided evidence of the clinical utility of real world HLC assays for the identification of M-proteins and to monitor M proteins with an emphasis on IgA monoclonal gammopathies. PMID- 29324246 TI - Spin-echo based diagonal peak suppression in solid-state MAS NMR homonuclear chemical shift correlation spectra. AB - The feasibility of using the spin-echo based diagonal peak suppression method in solid-state MAS NMR homonuclear chemical shift correlation experiments is demonstrated. A complete phase cycling is designed in such a way that in the indirect dimension only the spin diffused signals are evolved, while all signals not involved in polarization transfer are refocused for cancellation. A data processing procedure is further introduced to reconstruct this acquired spectrum into a conventional two-dimensional homonuclear chemical shift correlation spectrum. A uniformly 13C, 15N labeled Fmoc-valine sample and the transmembrane domain of a human protein, LR11 (sorLA), in native Escherichia coli membranes have been used to illustrate the capability of the proposed method in comparison with standard 13C-13C chemical shift correlation experiments. PMID- 29324247 TI - mGlu5-dependent modulation of anxiety during early withdrawal from binge-drinking in adult and adolescent male mice. AB - Binge alcohol-drinking elicits symptoms of negative affect such as anxiety upon cessation, which is a source of negative reinforcement for perpetuating this pattern of alcohol abuse. Binge-induced anxiety during early (24 h) withdrawal is associated with increased expression of metabotropic glutamate receptor 5 (mGlu5) within the nucleus accumbens shell (AcbSh) of adult male mice, but was unchanged in anxiety-resilient adolescents. Herein, we determined the role of mGlu5 signaling in withdrawal-induced anxiety via pharmacological manipulation using the mGlu5 negative allosteric modulator MTEP and the positive allosteric modulator CDPPB. Adult (PND 56) and adolescent (PND 28) male C57BL/6J mice binge drank for 14 days under 3-bottle-choice procedures for 2 h/day; control animals drank water only. Approximately 24 h following the final alcohol presentation, animals were treated with 30 mg/kg IP MTEP, CDPPB, or vehicle and then tested, thirty minutes later, for behavioral signs of anxiety. Vehicle-treated binge drinking adults exhibited hyperanxiety in all paradigms, while vehicle-treated binge-drinking adolescents did not exhibit withdrawal-induced anxiety. In adults, 30 mg/kg MTEP decreased alcohol-induced anxiety across paradigms, while 3 mg/kg MTEP was anxiolytic in adult water controls. CDPPB was modestly anxiogenic in both alcohol- and water-drinking mice. Adolescent animals showed minimal response to either CDPPB or MTEP, suggesting that anxiety in adolescence may be mGlu5 independent. These results demonstrate a causal role for mGlu5 in withdrawal induced anxiety in adults and suggest age-related differences in the behavioral pharmacology of the negative reinforcing properties of alcohol. PMID- 29324249 TI - Disability in progressive MS is associated with T2 lesion changes. AB - BACKGROUND: Progressive multiple sclerosis (MS) is characterised by diffuse changes on brain magnetic resonance imaging (MRI), which complicates the use of MRI as a diagnostic and prognostic marker. The relationship between MRI measures (conventional and non-conventional) and clinical disability in progressive MS therefore warrants further investigation. OBJECTIVE: To investigate the relationship between clinical disability and MRI measures in patients with progressive MS. METHODS: Data from 93 primary and secondary progressive MS patients who had participated in 3 phase 2 clinical trials were included in this cross-sectional study. From 3T MRI baseline scans we calculated total T2 lesion volume and analysed magnetisation transfer ratio (MTR) and the diffusion tensor imaging indices fractional anisotropy (FA) and mean diffusivity (MD) in T2 lesions, normal-appearing white matter (NAWM) and cortical grey matter. Disability was assessed by the Expanded Disability Status Scale (EDSS) and the MS functional composite. RESULTS: T2 lesion volume was associated with impairment by all clinical measures. MD and MTR in T2 lesions were significantly related to disability, and lower FA values correlated with worse hand function in NAWM. In multivariable analyses, increasing clinical disability was independently correlated with increasing T2 lesion volumes and MTR in T2 lesions. CONCLUSION: In progressive MS, clinical disability is related to lesion volume and microstructure. PMID- 29324248 TI - Varenicline for tobacco-dependence treatment in alcohol-dependent smokers: A randomized controlled trial. AB - BACKGROUND: Tobacco use is prevalent among persons with alcohol abuse and dependence. Varenicline has been shown to be the most effective pharmacotherapy for smoking cessation and may decrease alcohol consumption. The purpose of this study was to evaluate the efficacy of 12 weeks of varenicline for increasing smoking abstinence rates in smokers with alcohol abuse or dependence. METHODS: Participants were eligible for enrollment if they were 18 years or older, smoked 10 or more cigarettes per day for at least 6 months, had current alcohol abuse or dependence, and were interested in quitting smoking. Participants were randomly assigned to receive 12 weeks of varenicline 1 mg twice daily or matching placebo. The primary end point was 7-day point prevalence smoking abstinence at week 12. RESULTS: The 7-day point prevalence smoking abstinence rate at 12 weeks was significantly higher with varenicline (n = 16) than placebo (n = 17) (43.8% vs 5.9%; P = .01). At 24 weeks, the 7-day point prevalence smoking abstinence rate was still significantly higher with varenicline than placebo (31.3% vs 0%; P = .02). At 12 weeks, mean (SD) drinks per drinking day was significantly lower with varenicline than placebo (5.7 [3.9] vs 9.0 [5.3] drinks; treatment effect estimate, -2.8 [90% CI, -6.6 to -1.0]). Adverse events were minor and comparable to varenicline clinical trials. CONCLUSIONS: Varenicline is safe and efficacious for increasing smoking abstinence rates in smokers with alcohol abuse or dependence. Varenicline may decrease alcohol consumption in this population of smokers. PMID- 29324250 TI - Novel sulfonamide incorporating piperazine, aminoalcohol and 1,3,5-triazine structural motifs with carbonic anhydrase I, II and IX inhibitory action. AB - A new series of s-triazine derivatives incorporating sulfanilamide, homosulfanilamide, 4-aminoethyl-benzenesulfonamide and piperazine or aminoalcohol structural motifs is reported. Molecular docking was exploited to select compounds from virtual combinatorial library for synthesis and subsequent biological evaluation. The compounds were prepared by using step by step nucleophilic substitution of chlorine atoms from cyanuric chloride (2,4,6 trichloro-1,3,5-triazine). The compounds were tested as inhibitors of physiologically relevant carbonic anhydrase (CA, EC 4.2.1.1) isoforms. Specifically, against the cytosolic hCA I, II and tumor-associated hCA IX. These compounds show appreciable inhibition. hCA I was inhibited with KIs in the range of 8.5-2679.1 nM, hCA II with KIs in the range of 4.8-380.5 nM and hCA IX with KIs in the range of 0.4-307.7 nM. As other similar derivatives, some of the compounds showed good or excellent selectivity ratios for inhibiting hCA IX over hCA II, of 3.5-18.5. 4-[({4-Chloro-6-[(4-hydroxyphenyl)amino]-1,3,5-triazin-2 yl}amino)methyl] benzene sulfonamide demonstrated subnanomolar affinity for hCA IX (0.4 nM) and selectivity (18.50) over the cytosolic isoforms. This series of compounds may be of interest for the development of new, unconventional anticancer drugs targeting hypoxia-induced CA isoforms such as CA IX. PMID- 29324252 TI - The genetic diversity and applicability assessment of autosomal STRs among Chinese populations by a novel Fixation Index and Nei's index. AB - The population-specific FST in STR loci of Chinese populations has not been focused on. Here, we genotyped 19 STRs in 530 unrelated healthy individuals of Xuzhou Han population, and collected data of 30,308 samples from 32 Hans and 50 minorities nationwide. The population-specific betai and locus-specific betail were calculated to evaluate the applicable value of STRs. Next, we generated the genetic structure of various ethnic populations by Neighbor-Joining tree and Multidimensional Scaling plot based on pairwise Nei's distances. We found that TH01 and TPOX possessed high ability in discriminating populations which may be reled to the mutation rate of these STRs. Additionally, our data indicated that Chinese Han was homogenous and the population-specific betais of northern Hans were generally smaller than southern Hans (p > 0.05). We concluded that population-specific FST for autosomal STR loci could be used to reveal the unique genetic characteristics and thus uncover the genetic relationship among Chinese populations. PMID- 29324251 TI - Potential role of Plasmodium falciparum exported protein 1 in the chloroquine mode of action. AB - In the human malaria parasite Plasmodium falciparum, membrane glutathione S transferases (GST) have recently emerged as potential cellular detoxifying units and as drug target candidates with the artemisinin (ART) class of antimalarials inhibiting their activity at single-digit nanomolar potency when activated by iron sources such as cytotoxic hematin. Here we put forward the hypothesis that the membrane GST Plasmodium falciparum exported protein 1 (PfEXP1, PF3D7_1121600) might be directly involved in the mode of action of the unrelated antimalarial 4 aminoquinoline drug chloroquine (CQ). Along this line we report potent biochemical inhibition of membrane glutathione S-transferase activity in recombinant PfEXP1 through CQ at half maximal inhibitory CQ concentrations of 9.02 nM and 19.33 nM when using hematin and the iron deficient 1-chloro-2,4 dinitrobenzene (CDNB) as substrate, respectively. Thus, in contrast to ART, CQ may not require activation through an iron source such as hematin for a potent inhibition of membrane GST activity. Arguably, these data represent the first instance of low nanomolar inhibition of an essential Plasmodium falciparum enzyme through a 4-aminoquinoline and might encourage further investigation of PfEXP1 as a potential CQ target candidate. PMID- 29324253 TI - A qualitative study comparing physician-reported barriers to treating addiction using buprenorphine and extended-release naltrexone in U.S. office-based practices. AB - AIM: Our aim was to compare physician-reported barriers to sublingual buprenorphine (BUP) and extended-release naltrexone (XR-NLT) prescribing in U.S. office-based practices, and to identify potential policies for minimizing these barriers. Only one previous qualitative study has examined physician-reported barriers to prescribing XR-NLT and no qualitative study has compared physician reported barriers between the two medications. METHODS: Researchers conducted individual semi-structured and in-depth interviews with 20 licensed physicians in four U.S. states between January 2016 and May 2017. Interview questions included general barriers to addiction treatment in office-based settings, barriers specific to BUP and XR-NLT prescribing, and potential government policies to decrease barriers. Researchers conducted thematic analysis of transcribed interviews. They developed and pilot tested a coding template based on a sample of transcripts, independently coded transcripts in Dedoose software, conducted consensus coding to eliminate coding discrepancies, and then assessed data for themes using research questions as a guide. RESULTS: General barriers to office based OUD treatment included limited physician education, limited insurance reimbursement, stigma, and perceptions of "difficult" patients. Barriers specific to BUP prescribing included regulatory restrictions, liability fears, and restrictions imposed by the criminal justice system. Barriers specific to XR-NLT prescribing included limited access to medically-supervised opioid detoxification, lack of awareness of the medication, and patient fears or disinterest. Participants without experience prescribing either medication emphasized barriers to treating OUD in general. Participants with experience prescribing BUP and/or XR-NLT described barriers to treating OUD in general as well as barriers specific to each medication. Policy makers should increase access to addiction medicine education, mandate insurance coverage of both medications and inpatient detoxification, prohibit excessive insurance prior authorization requirements, increase insurance reimbursement for behavioral healthcare, and incentivize interdisciplinary collaboration. CONCLUSIONS: While overlap exists, some barriers to BUP prescribing differ from barriers to XR-NLT prescribing. PMID- 29324254 TI - PRDM14 is expressed in germ cell tumors with constitutive overexpression altering human germline differentiation and proliferation. AB - Germ cell tumors (GCTs) are a heterogeneous group of tumors occurring in gonadal and extragonadal locations. GCTs are hypothesized to arise from primordial germ cells (PGCs), which fail to differentiate. One recently identified susceptibility loci for human GCT is PR (PRDI-BF1 and RIZ) domain proteins 14 (PRDM14). PRDM14 is expressed in early primate PGCs and is repressed as PGCs differentiate. To examine PRDM14 in human GCTs we profiled human GCT cell lines and patient samples and discovered that PRDM14 is expressed in embryonal carcinoma cell lines, embryonal carcinomas, seminomas, intracranial germinomas and yolk sac tumors, but is not expressed in teratomas. To model constitutive overexpression in human PGCs, we generated PGC-like cells (PGCLCs) from human pluripotent stem cells (PSCs) and discovered that elevated expression of PRDM14 does not block early PGC formation. Instead, we show that elevated PRDM14 in PGCLCs causes proliferation and differentiation defects in the germline. PMID- 29324255 TI - Aberrant, autistic, and food-related behaviors in adults with Prader-Willi syndrome. The comparison between young adults and adults. AB - This study aims to explore the differences of age as well as genotype in regards to the severity of behavioral symptoms in Prader-Willi syndrome (PWS), with emphasis on the comparison between youngadults and adults.The Food Related Problem Questionnaire (FRPQ), the Aberrant Behavior Checklist Japanese Version (ABC-J), and the Pervasive Developmental Disorders Autism Society Japan Rating Scale (PARS) were administered to 46 PWS patients, including 33 young adults (ages 18-28) and 13 adults(ages 30-45). To examine the differences between young adults and adults, Mann-Whitney U tests were conducted. Statistically significant differences were found in ABC-J (p = .027) and PARS (p = .046), with higher scores in young adults than adults. Such differences between the two age groups were still true for the subgroups having a paternal chromosome 15q deletion (DEL) for ABC-J (p = .050) and part of PARS ("Problematic behavior"; p = .007). By contrast, there was no significant differences between young adults and adults regarding FRPQ (p = .65).These results suggest that aberrant behaviors decline from around the ages of thirty, in PWS patients in general and in DEL subgroups in particular, while food-related behaviors give no indication of diminishing in spite of developmental growth. PMID- 29324256 TI - DFT/TD-semiempirical study on the structural and electronic properties and absorption spectra of supramolecular fullerene-porphyrine-metalloporphyrine triads based dye-sensitized solar cells. AB - In the present work density functional theory (DFT) and time-dependent semiempirical ZNIDO/S (TD-ZNIDO/S) methods have been used to investigate the ground state geometries, electronic structures and excited state properties of triad systems. The influences of the type of metal in the porphyrin ring, change in bridge position and porphyrine-ZnP duplicate on the energies of frontier molecular orbital and UV-Vis spectra has been studied. Geometry optimization, the energy levels and electron density of the Highest Occupied Molecular Orbital (HOMO) and the Lowest Unoccupied Molecular Orbital (LUMO), chemical hardness (eta), electrophilicity index (omega), electron accepting power (omega+) were calculated using ZINDO/S method to predict which molecule is the most efficient with a great capability to be used as a triad molecule in solar industry. Moreover the light harvesting efficiency (LHE) was calculated by means of the oscillator strengths which are obtained by TD-ZINDO/S calculation. Theoretical studies of the electronic spectra by ZINDO/S method were helpful in interpreting the observed electronic transitions. This aspect was systematically explored in a series of C60-Porphyrine-Metalloporphyrine (C60-P-Mp) triad system with M being Fe, Co, Ni, Ti, and Zn. Generally, transition metal coordination compounds are used as effective sensitizers, due to their intense charge-transfer absorption over the whole visible range and highly efficient metal-to-ligand charge transfer. We aim to optimize the performance of the title solar cells by altering the frontier orbital energy gaps. The results reveal that cell efficiency can be enhanced by metal functionalization of the free base porphyrin. Ti-porphyrin was found to be the most efficient dye sensitizer for dye sensitized solar cells (DSSCs) based on C60-P-Mptriad system due to C60-Por-TiP complex has lower chemical hardness, gap energy and chemical potential as well as higher electron accepting power among other complexes. In addition, the performance of solar cells favors better with doubly and increasing the pi conjugated of the bridge. PMID- 29324257 TI - Effects of pelargonidin-3-O-glucoside and its metabolites on lipopolysaccharide stimulated cytokine production by THP-1 monocytes and macrophages. AB - Epidemiological evidence suggests cardioprotective effects of anthocyanin consumption. This study examined the predominant strawberry anthocyanin, pelargonidin-3-O-glucoside (Pg-3-glc), and three of its plasma metabolites (protocatechuic acid [PCA], 4-hydroxybenzoic acid, and phloroglucinaldehyde [PGA]) for effects on the production of selected cytokines by lipopolysaccharide stimulated THP-1 monocytes and macrophages. Concentrations of tumor necrosis factor-alpha (TNF-alpha), interleukin (IL)-1beta, IL-6, IL-8 and IL-10 were determined using a cytometric bead array kit. PCA at 0.31, 1.25 and 20 MUM and PGA at 5 and 20 MUM decreased the concentration of IL-6 in the monocyte cultures, but there were no effects on TNF-alpha, IL-1beta, IL-8 and IL-10 and there were no effects of the other compounds. In the macrophage cultures, PGA at 20 MUM decreased the concentrations of IL-6 and IL-10, but there was no effect on TNF alpha, IL-1beta and IL-8 and there were no effects of the other compounds. In conclusion, while the effects of PGA were only observed at the higher, supraphysiological concentration and are thus considered of limited physiological relevance overall, the anti-inflammatory properties of PCA were observed at both the lower, physiologically relevant, and the higher concentrations; however, effects were modest and limited to IL-6 and monocytes. These preliminary data suggest potential for physiologically attainable PCA concentrations to modulate IL-6 production by monocytes. PMID- 29324258 TI - IL-18 and Stem Cell Factor affect hematopoietic progenitor cells in HIV-infected patients treated during primary HIV infection. AB - The impact of early antiretroviral therapy (ART) during Primary HIV Infection (PHI) on the hematopoietic progenitor cells (HPCs) homeostasis is not available. This study aimed to characterize HPCs and their relationship with cytokines regulating progenitors function in ART-treated patients with PHI. We enrolled HIV infected patients treated with ART during PHI. Circulating HPCs, Lymphoid-HPCs (L HPCs) frequency and plasmatic concentrations of IL-7, IL-18 and Stem Cell Factor (SCF) were analysed at baseline and after 6 months of therapy. ART introduction during PHI restored the decline of L-HPCs, induced a decrease in the level of pro inflammatory IL-18 cytokine and a parallel increase of SCF. Moreover, L-HPCs frequency positively correlated with IL-18 at baseline, and with SCF after 6 months of therapy, suggesting that different signals impact L-HPCs expansion and maintenance before and after treatment. Finally, the SCF receptor expression on HPCs decreased after early ART initiation. These insights may open new perspectives for the evaluation of cytokine-driven L-HPCs expansion and their impact on the homeostasis of hematopoietic compartment during HIV infection. PMID- 29324260 TI - Plasma leptin, but not resistin, TNF-alpha and adiponectin, is associated with echocardiographic parameters of cardiac remodeling in patients with coronary artery disease. AB - The aim of this research was to assess the relationship between plasma adiponectin, leptin, resistin, tumor necrosis factor alpha (TNF-alpha) levels and echocardiographic parameters of ventricular remodeling in patients with coronary artery disease, without acute myocardial infarction. The study population consisted of 49 patients with echocardiographic measurements performed. After adjustment for age, gender, body mass index, systolic and diastolic blood pressure, and glycaemia, adiponectin was statistically significant associated with interventricular septum thickness (beta = -0.304), left ventricular posterior wall thickness (beta = -0.402), left ventricular end diastolic diameter (LVEDD; beta = 0.385) and left ventricular relative wall thickness (beta = 0.448, p < .05 for all). The associations were no longer significant when only patients without diabetes were included in the analysis. Leptin was associated with LVEDD (beta = -0.354) and left ventricular relative wall thickness (beta = 0.385, p < .05 for all). No associations between resistin, TNF-alpha and echocardiographic left ventricular parameters assessed were found in these patients. In conclusion, in patients with coronary artery disease and without acute myocardial infarction leptin may represent a potential mechanism of adverse cardiac remodeling. Resistin and TNF-alpha might not be involved in ventricular remodeling in these patients. PMID- 29324259 TI - Higher serum vitamin D levels are associated with protective serum cytokine profiles in patients with ulcerative colitis. AB - BACKGROUND & AIMS: Vitamin D has immune modulating effects on cytokines. Serum vitamin D levels are associated with the risk of relapse in patients with ulcerative colitis (UC), through unknown mechanisms. We tested the hypothesis that this beneficial role of vitamin D on UC is mediated through anti inflammatory serum cytokine profiles. METHODS: Serum samples from a prospective cohort of seventy UC patients in clinical remission were collected and baseline histological and endoscopic scores were recorded at enrollment. Clinical relapse events were recorded over the 12-month follow-up period. Serum vitamin D and cytokines levels (IL-6, IL-8, IL-17A, TNF-alpha, IFN-gamma, IL-4, IL-10) were quantified using ELISA. Linear regression was used to determine correlation between vitamin D and cytokine profiles. Logistic regression models were used to determine the association between serum cytokine profiles and baseline histologic mucosal healing and clinical relapse. RESULTS: Higher serum vitamin D levels positively correlated with higher ratios of IL-4 + IL-10/IL-17A + TNF-alpha (r = 0.37, P < .01), and IL-4 + IL-10/IL-6 + TNF-alpha (r = 0.32, P < .01). In multivariate analysis, IL-4 + IL-10/IL-17A + TNF-alpha ratios at baseline were associated with the presence of histologic mucosal healing (O.R. 1.29, 95% CI 1.02-1.62, P = .03). A higher ratio of serum IL-4 + IL-10 to IL-6 + TNF-alpha was associated with a reduced risk of clinical relapse (O.R. 0.72, 95% CI 0.58-0.89, P = .003), and longer time to relapse (p = .03), over the 12-month follow-up period. This ratio during remission had an AUC of 0.7 in predicting later clinical relapse. CONCLUSIONS: Vitamin D is associated with anti-inflammatory serum cytokine profiles. Anti-inflammatory cytokine patterns may mediate the protective effects of higher serum vitamin D levels in patients with ulcerative colitis. PMID- 29324261 TI - Platelet Toll-like receptor and its ligand HMGB-1 expression is increased in the left atrium of atrial fibrillation patients. AB - BACKGROUND: Atrial fibrillation(AF) is the most common sustained arrhythmia. Its most feared sequelae are stroke and peripheral thromboembolism due to atrial thrombi formation. Mechanisms underlying the relationship between platelet activation and left atrial thrombi have not been clearly elucidated yet. We aimed to investigate whether immune-mediated platelet activation occurred in AF patients in this cross-sectional study. METHODS: Persistent and paroxysmal AF patients who underwent cryoballoon-based AF ablation between March 2015 and July 2016 were included as the patient group. Patients without AF in whom transseptal puncture was performed at the same period for purposes other than AF ablation were included as the control group. Peripheral and left atrial blood samples were obtained for determination of platelet Toll-like receptor(TLR)-2, TLR-4 and high mobility group box-1(HMGB-1) expression levels. RESULTS: A total of 75 subjects (53 patients with AF and 22 control subjects) [mean: 60.33 (SD: 6.14) years, 57.33% male] were included. Left atrial and peripheral TLR-2, 4 and HMGB-1 expression levels were significantly higher in the patient group when compared to the controls. Left atrial platelet TLR-2 and TLR-4 expression and serum HMGB-1 levels were higher in persistent AF patients compared to paroxysmal AF patients. In the patient group, left atrial expression of TLR-2, 4 and HMGB-1 were significantly higher than the peripheral expression levels. CONCLUSION: Findings of our study suggest evidence for immune-mediated platelet activation in the left atria of AF patients. PMID- 29324262 TI - Altered regulatory cytokine profiles in cases of pediatric respiratory syncytial virus infection. AB - OBJECTIVES: Regulatory cytokines are associated with viral infection. The objective of this study was to evaluate the relation between serum regulatory cytokines concentrations and respiratory syncytial virus (RSV) disease. METHODS: We enrolled 325 children aged < 24 months who were diagnosed with acute respiratory tract infection. Twenty age-matched healthy children were enrolled as controls. Nasopharyngeal swabs were analyzed to identify virus by reverse transcription polymerase chain reaction, and blood samples were taken to quantify the regulatory cytokine concentrations, including interleukin (IL)-35, IL-10 and transforming growth factor (TGF)-beta1 using the Bio-Plex immunoassay or enzyme linked immunosorbent assay. RESULTS: RSV disease was associated with a great regulatory cytokine response than healthy children, among 89 RSV-infected patients, serum IL-35 (P = .0001) and IL-10 (P = .006) was significantly elevated in comparison with healthy controls. Young children (0< age <=6 months) with RSV infection had significantly lower IL-35 and IL-10 expression but needed more oxygen therapy and more severe disease comparing with older children (12< age <24 months). Comparing with mild group, the expression levels of IL-10 were significantly lower in children with moderate and severe disease (P = .012 and P = .005, respectively). And levels of IL-10 was inversely associated with total duration of RSV infection symptoms (r = - 0.311, P = .019). CONCLUSION: Children with RSV infected had increased serum regulatory cytokine IL-10 and IL-35 concentrations. Elevated expression of IL-10 and IL-35 were contributed to protect hypoxia and reduce the severity of disease. PMID- 29324263 TI - The role of pro-fibrotic biomarkers in paroxysmal and persistent atrial fibrillation. AB - PURPOSE: Signaling pathways involved in electrical, structural and contractile remodeling processes behind development and progression of atrial fibrillation (AF) have not been completely elucidated, but it seems to be related to complex interactions among neurohormonal and cellular mediators. We aimed to investigate interleukin-6 (IL-6), transforming growth factor-beta1 (TGF-beta1), matrix metalloproteinase-9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1), as biomarkers of atrial remodeling, in patients with paroxysmal and persistent AF, and their correlation with N-terminal prohormone of brain natriuretic peptide (NT proBNP) and left atrial (LA) diameter. METHODS: Thirty-seven patients (22M/15F) with paroxysmal AF, 32 patients (22M/10F) with persistent AF and 30 healthy control subjects (18M/12F) were enrolled in the study. Serum levels of biomarkers were measured by ELISA. Cardiac function was assessed echocardiographically. RESULTS: IL-6 levels and MMP-9/TIMP-1 ratio were significantly higher in AF patients than in non-AF controls (P < .001), and in persistent than in paroxysmal AF (P < .001), in line with NT-proBNP and LA diameter. In contrast, TGF beta1levels declined with increasing AF duration (from 51.2 pg/mL, IQR: 38.9-87.9 pg/mL in paroxysmal to 23.9 pg/mL, IQR: 16.9-43.6 pg/mL in persistent AF). TGF beta1 was negatively correlated with NT-proBNP (r = -0.53, P = .001 in paroxysmal AF and r = -0.71, P < .001 in persistent AF) and LA diameter (r = -0.44, P = .006 in paroxysmal AF and r = -0.51, P = .003 in persistent AF). CONCLUSIONS: Our results demonstrate that AF development and progression (from paroxysmal to persistent) is associated with a gradual increase in serum levels of NT-proBNP, IL-6 and MMP-9/TIMP-1 ratio. Moreover, this study suggests that the relationship between TGF-beta1, NT-proBNP and LA diameter allows for the progression of atrial remodeling during AF, despite compensatory changes in the TGF-beta1 signaling pathway. PMID- 29324264 TI - Driver education: Enhancing knowledge of sleep, fatigue and risky behaviour to improve decision making in young drivers. AB - This study assessed the impact of an education program on knowledge of sleepiness and driving behaviour in young adult drivers and their performance and behaviour during simulated night driving. Thirty-four participants (18-26 years old) were randomized to receive either a four-week education program about sleep and driving or a control condition. A series of questionnaires were administered to assess knowledge of factors affecting sleep and driving before and after the four week education program. Participants also completed a two hour driving simulator task at 1am after 17 h of extended wakefulness to assess the impact on driving behaviour. There was an increase in circadian rhythm knowledge in the intervention group following the education program. Self-reported risky behaviour increased in the control group with no changes in other aspects of sleep knowledge. There were no significant differences in proportion of intervention and control participants who had microsleeps (p <= .096), stopped driving due to sleepiness (p = .107), recorded objective episodes of drowsiness (p = .455), and crashed (p = .761), although there was a trend towards more control participants having microsleeps and stopping driving. Those in the intervention group reported higher subjective sleepiness at the end of the drive [M = 6.25, SD = 3.83, t(31) = 2.15, p = .05] and were more likely to indicate that they would stop driving [M = 3.08, SD = 1.16, t(31) = 2.24, p = .04]. The education program improved some aspects of driver knowledge about sleep and safety. The results also suggested that the education program lead to an increased awareness of sleepiness. Education about sleep and driving could reduce the risk of drowsy driving and associated road trauma in young drivers, but requires evaluation in a broader sample with assessment of real world driving outcomes. PMID- 29324265 TI - Bayesian spatiotemporal crash frequency models with mixture components for space time interactions. AB - The traffic safety research has developed spatiotemporal models to explore the variations in the spatial pattern of crash risk over time. Many studies observed notable benefits associated with the inclusion of spatial and temporal correlation and their interactions. However, the safety literature lacks sufficient research for the comparison of different temporal treatments and their interaction with spatial component. This study developed four spatiotemporal models with varying complexity due to the different temporal treatments such as (I) linear time trend; (II) quadratic time trend; (III) Autoregressive-1 (AR-1); and (IV) time adjacency. Moreover, the study introduced a flexible two-component mixture for the space-time interaction which allows greater flexibility compared to the traditional linear space-time interaction. The mixture component allows the accommodation of global space-time interaction as well as the departures from the overall spatial and temporal risk patterns. This study performed a comprehensive assessment of mixture models based on the diverse criteria pertaining to goodness-of-fit, cross-validation and evaluation based on in-sample data for predictive accuracy of crash estimates. The assessment of model performance in terms of goodness-of-fit clearly established the superiority of the time-adjacency specification which was evidently more complex due to the addition of information borrowed from neighboring years, but this addition of parameters allowed significant advantage at posterior deviance which subsequently benefited overall fit to crash data. The Base models were also developed to study the comparison between the proposed mixture and traditional space-time components for each temporal model. The mixture models consistently outperformed the corresponding Base models due to the advantages of much lower deviance. For cross validation comparison of predictive accuracy, linear time trend model was adjudged the best as it recorded the highest value of log pseudo marginal likelihood (LPML). Four other evaluation criteria were considered for typical validation using the same data for model development. Under each criterion, observed crash counts were compared with three types of data containing Bayesian estimated, normal predicted, and model replicated ones. The linear model again performed the best in most scenarios except one case of using model replicated data and two cases involving prediction without including random effects. These phenomena indicated the mediocre performance of linear trend when random effects were excluded for evaluation. This might be due to the flexible mixture space time interaction which can efficiently absorb the residual variability escaping from the predictable part of the model. The comparison of Base and mixture models in terms of prediction accuracy further bolstered the superiority of the mixture models as the mixture ones generated more precise estimated crash counts across all four models, suggesting that the advantages associated with mixture component at model fit were transferable to prediction accuracy. Finally, the residual analysis demonstrated the consistently superior performance of random effect models which validates the importance of incorporating the correlation structures to account for unobserved heterogeneity. PMID- 29324266 TI - Collision risk analysis based train collision early warning strategy. AB - A Train Collision Early Warning System (TCEWS) has been developed for collision avoidance. However, there are few studies regarding how to evaluate the collision risk and provide an early warning concerning a preceding train on the railway. In this paper, we have found that the time for collision avoidance is constrained by the timing of events, such as wireless communication latency, driver reaction, safety protection distance and deceleration rate. Considering these timing components, the time to avoid a collision is calculated accurately. To evaluate the potential collision severity when the following train approaches, the collision risk is defined based on the time to avoid a collision. The train collision early warning signal is divided into a four-tier color-coded system based on the collision risk, with red representing the most severe collision risk, followed by orange, yellow and blue. A field test of the train collision early warning strategy on the Hankou-Yichang Railway is analysed. It is demonstrated that the strategy has sufficient capability to indicate a potential collision and warn the following train. PMID- 29324267 TI - Clinical validity of the Japanese version of WAIS-III short forms: Adaptation for patients with mild neurocognitive disorder and dementia. AB - We investigated the Japanese WAIS-III short form utility in mild neurocognitive disorder and dementia. Our sample consisted of 108 old patients (ages: 65-89; mean age = 78.3). Fifteen short forms (SFs) and full-scale (FS) IQs were compared. The SFs included Dyads (SF1, SF2), Triads (SF3), Tetrads (SF4, SF5, SF6, SF7), Pentad (SF8), Six-subtest (SF9), Seven-subtests (SF10(a)(b), SF11(a)(b), SF12), and Nine-subtest (SF13). Correlations between SFIQs and FSIQ were all significant. Significant differences also were found in paired t-test between FSIQ and 5 SFIQs (SF2: t = -4.16, SF5: t = -7.06, SF7; t = 2.59, SF10(a): t = 2.56, SF12: t = -4.82; p < .05). On the point of clinical accuracy, two SFs led to an appropriate estimated IQ (SF11(a): 84.3%, SF13: 91.7%; within 95% confidence interval and 2 standard error of measurements of FSIQ). However, SF13 was considered to still have a long administration time. The present results suggest that SF11(a) could be the most useful to estimate IQ for Japanese speaking patients with mild neurocognitive disorder and dementia. SF11(a) consists of seven subtests of Similarities, Arithmetic, Digit Span, Information, Picture Completion, Digit Symbol-Coding, and Matrix Reasoning (Ryan & Ward, 1999), and the formula (Axelrod et al., 2001) should be adopted to convert scaled scores into estimated IQ scores. PMID- 29324268 TI - Exploring the role of YouTube in delivering dementia education to older Chinese. PMID- 29324269 TI - Surfactant-free synthesis of silica aerogel microspheres with hierarchically porous structure. AB - In this work, we developed a new method to synthesize silica aerogel microspheres via ambient pressure drying (APD) process without applying any surfactants and mechanical stirring. An ethanol solution of partially hydrolyzed, partially condensed silica (CS) was used as precursor in the synthesis, the water-repellent n-Heptane as solvent, while the water-soluble ammonia gas (NH3) as catalyst. After a fast sol-gel process and APD process, aerogel microspheres were obtained in the form of white powder with packing density ranged from 62 mg/cm3 to 230 mg/cm3 for different samples. The SEM images exhibited fine spherical morphology for these aerogel microparticles, and their statistical average particle diameter ranged from 0.8 MUm to 1.5 MUm. Besides, according to the analysis of N2 adsorption-desorption isotherms, the BET surface area of these aerogel microspheres was in the range of 800-960 m2/g, and a considerable volume of micropores was detected along with the abundant mesospores in these microspheres, which was further confirmed by the TEM image and SAXS curve. Based on the very limited solubility of NH3 in the reaction system, a non-emulsion formation mechanism was proposed to illustrate the formation of these aerogel microspheres. PMID- 29324270 TI - AgCl/Ag3PO4: A stable Ag-Based nanocomposite photocatalyst with enhanced photocatalytic activity for the degradation of parabens. AB - An AgCl/Ag3PO4 composite has been successfully fabricated by a simple desorption precipitation method. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), ultraviolet-visible spectroscopy (UV/Vis), and photoluminescence (PL) have been used to study the structural and physicochemical characteristics of the AgCl/Ag3PO4 composite. The photocatalytic activity of the AgCl/Ag3PO4 composite has been tested by the degradation of parabens under visible-light irradiation. 100% of MPB was degraded within 40 min in the AgCl/Ag3PO4-visible light system. Moreover, the photocatalytic activity of AgCl/Ag3PO4 remained at 94% of the original level after five runs, which was much higher than that of pure Ag3PO4 (25%). The obtained results confirmed that the AgCl/Ag3PO4 composite exhibited significantly higher photocatalytic performance and improved stability compared with bare Ag3PO4. The enhanced photocatalytic performance of the AgCl/Ag3PO4 composite could be mainly attributed to highly efficient charge separation through a synergistic effect of AgCl, Ag3PO4, and in situ photo-reduced Ag nanoparticles. Trapping experiments confirmed h+ and .O2- to be the two main active species in the photocatalytic process. Finally, a possible photocatalytic mechanism for the charge-transfer process is proposed to account for the enhanced photocatalytic performance of the AgCl/Ag3PO4 composite. PMID- 29324271 TI - Bifunctional monomer magnetic imprinted nanomaterials for selective separation of tetracyclines directly from milk samples. AB - Novel magnetic molecularly imprinted nanomaterials (DA + BSA-MMIPs) were prepared adopting bovine serum albumin (BSA) and dopamine as bifunctional monomers for the first time. Besides the role of assistant functional monomer, BSA can exclude the proteins with like charges and promote low molecular weight tetracyclines to be adsorbed. Thus, the DA + BSA-MMIPs could fulfil the selective separation of tetracyclines directly from milk samples. The characteristics, polymerization conditions, and adsorption performances of the resultant nanomaterials were investigated in detail. In addition of uniform imprinting layers, stable crystalline phase, and good magnetism of the DA + BSA-MMIPs, they have rapid binding kinetic, high adsorption capacity, and favorable reusability. The imprinted nanomaterials were coupled with HPLC to selectively extract and determine trace tetracyclines from untreated milk samples. The recoveries of tetracyclines are in the range of 84.1-95.8% with relative standard deviations of less than 6.7%. The developed method is especially suitable for the selective enrichment and detection of target compounds directly from a complex sample with proteins. PMID- 29324272 TI - Violence and maltreatment in Tanzanian families-Findings from a nationally representative sample of secondary school students and their parents. AB - Though the Sustainable Development Goals of the United Nations aim to end all forms of violence against minors, child maltreatment remains a globally prevalent phenomenon. Despite the fact that parents in numerous countries apply violent discipline methods to control children's behavior, little is known about the prevalence of maltreatment and violent discipline in Sub-Saharan Africa. In this study, we examined the prevalence of maltreatment and violent discipline from both the adolescents' and parents' perspectives. In addition, we explored risk factors that could be associated with violent discipline by parents. We administered questionnaires to a nationally representative sample of 700 Tanzanian secondary school students (52% girls, mean age: 14.92 years, SD = 1.02, range: 12-17) and 333 parents or primary guardians (53% females; mean age: of 43.47 years, SD = 9.02, range: 19-71). More than 90% of all students reported exposure to violent discipline by a parent within the past year. Concurrently, more than 80% of parents acknowledged using violent discipline techniques. Using a path model, we found that violent discipline by parents was associated with parental stress. Other risk factors contributed to a higher stress level but were not directly linked to maltreatment. Our findings indicate high levels of violent discipline in Tanzanian families. There is a pressing need to design and implement interventions that prevent children from experiencing violence at home. Reducing parents' stress levels may be a starting point for intervention. Yet, due to the high levels of violent discipline, societal beliefs also need to be considered. PMID- 29324273 TI - A situational crime prevention analysis of Anglican clergy's child protective practices. AB - To date, a predominant focus within the field of 'clerical collar crime' has revolved around institutional-level church responses to child sexual abuse events, survivors and offenders. Comparatively, little attention has been directed towards the micro-level and in particular, examining clerical responses to child sexual abuse. This article presents empirical findings concerning the 'everyday' child protective practices of Anglican clergy in the Diocese of Tasmania, Australia. Research data was acquired through open-ended qualitative interviews conducted with a sample of 34 clergy in a broader study of clerical culture, habitus and life amidst the 'church abuse crisis'. The framework of Situational Crime Prevention is employed to evaluate the feasibility of clergy's child-safe practices and comment on how these practices could be further altered through professional development. Research findings demonstrate that clergy possess an active awareness of risk, and execute a series of protective measures to minimise both sexual interactions with children and allegations of impropriety. PMID- 29324274 TI - Mediators between adverse childhood experiences and suicidality. AB - We investigated whether psychiatric symptomatology, impulsivity, family and social dysfunction, and alcohol use mediate the relationship between adverse childhood experiences (ACEs) and suicidality. The study population comprised 206 adolescent psychiatric inpatients and 203 age- and gender-matched adolescents from the community. ACEs and suicidality were assessed using the Schedule for Affective Disorders and Schizophrenia for School-Age Children - Present and Lifetime version, the Life Events Checklist, and a structured background data collection sheet. Psychiatric symptomatology was measured using the Symptom Checklist -90. Impulsivity, social dysfunction, and family dysfunction were measured using the Offer Self-Image Questionnaire, and alcohol use was assessed with the Alcohol Use Disorders Identification Test. A simple mediation test and multiple mediation analyses were conducted. A positive direct effect of ACEs on suicidality was observed. Also seen was a positive indirect effect of ACEs on suicidality through psychiatric symptomatology, impulsivity, and family and social dysfunctions. Alcohol misuse did not, however, mediate the relationship between ACEs and suicidality. According to the multiple mediation analyses, psychiatric symptomatology was the most significant mediator, followed by impulsivity. Psychiatric symptoms, impulsivity, and family and social dysfunctions are factors that should be taken into consideration when assessing suicidality in adolescents. PMID- 29324275 TI - Effective usage of sorghum bagasse: Optimization of organosolv pretreatment using 25% 1-butanol and subsequent nanofiltration membrane separation. AB - We investigated the use of low concentrations of butanol (<40%, all v/v) as an organosolv pretreatment to fractionate lignocellulosic biomass into cellulose, hemicellulose, and lignin. The pretreatment conditions were optimized for sorghum bagasse by focusing on four parameters: butanol concentration, sulfuric acid concentration, pretreatment temperature, and pretreatment time. A butanol concentration of 25% or higher together with 0.5% or higher acid was effective for removing lignin while retaining most of the cellulose in the solid fraction. The highest cellulose (84.9%) and low lignin (15.3%) content were obtained after pretreatment at 200 degrees C for 60 min. Thus, pretreatment comprising 25% butanol, 0.5% acid, 200 degrees C, and 60 min process time was considered optimal. Enzymatic saccharification and fermentation by Saccharomyces cerevisiae produced 61.9 g/L ethanol from 200 g/L solid fraction obtained following pretreatment, and 10.2 g/L ethanol was obtained from the liquid fraction by xylose-utilizing S. cerevisiae following membrane nanofiltration to remove butanol. PMID- 29324276 TI - Furfural production from biomass pretreatment hydrolysate using vapor-releasing reactor system. AB - Biomass hydrolysate from autohydrolysis pretreatment was used for furfural production considering it is in rich of xylose, xylo-oligomers, and other decomposition products from hemicellulose structure. By using the vapor-releasing reactor system, furfural was protected from degradation by separating it from the reaction media. The maximum furfural yield of 73% was achieved at 200 degrees C for biomass hydrolysate without the use of the catalyst. This is because the presence of organic acids such as acetic acid in hydrolysate functioned as a catalyst. According to the results in this study, biomass hydrolysate with a vapor-releasing system proves to be efficient for furfural production. The biorefinery process which allows the separation of xylose-rich autohydrolysate from other parts from biomass feedstock also improves the overall application of the biomass. PMID- 29324277 TI - Readmission in psychiatry inpatients within a year of discharge: The role of symptoms at discharge and post-discharge care in a Brazilian sample. AB - INTRODUCTION: Readmission into inpatient psychiatric beds is a useful outcome for patients, care providers, and policymakers. This study aims to investigate the role of level of symptoms at discharge and type of post-discharge care in determining readmissions after a year before a psychiatric admission. METHODS: We performed a prospective and observational study in a general hospital psychiatric facility. Patients were assessed at admission, discharge, and one year after discharge. We used a multivariable logistic regression to determine predictors of readmission. RESULTS: In total, 488 patients were included at admission, and 401 (82,17%) were accessed in the follow-up period. Psychiatric readmissions occurred in 29.17% of the followed patients. The number of previous admissions represents a 38% higher chance of being readmitted (OR 1.38; CI 1.16-1.60). For patients admitted in a depressive episode, not being in remission at discharge increases 140% the chance to be readmitted (OR 2.40; CI 1.14-5.07) as well as the follow-up at primary (OR 5.27; CI 1.06-26.15). For those with Schizophrenia and related disorders, higher scores in BPRS at discharge increases the chance to be readmitted (OR 1.28, CI 1.11-1.48). CONCLUSION: Level of symptoms at discharge was related to higher chance to be readmitted in patients admitted in a depressive episode and those with schizophrenia and related disorders. Findings of the type of care raise the need for further investigation. Also, this finding confirms the importance of the history of previous admissions in predicting future admissions. PMID- 29324279 TI - Inhibition of UDP-glucose dehydrogenase by 6-thiopurine and its oxidative metabolites: Possible mechanism for its interaction within the bilirubin excretion pathway and 6TP associated liver toxicity. AB - 6-Thiopurine (6TP) is an actively prescribed drug in the treatment of various diseases ranging from Crohn's disease and other inflammatory diseases to acute lymphocytic leukemia and non-Hodgkin's leukemia. While 6TP has beneficial therapeutic uses, severe toxicities are also reported with its use, such as jaundice and liver toxicity. While numerous investigations into the mode in which toxicity originates has been undertaken. None have investigated the effects of inhibition towards UDP-Glucose Dehydrogenase (UDPGDH), an oxidative enzyme responsible for UDP-glucuronic acid (UDPGA) formation or UDP-Glucuronosyl transferase (UGT1A1), which is responsible for the conjugation of bilirubin with UDPGA for excretion. Failure to excrete bilirubin leads to jaundice and liver toxicity. We proposed that either 6TP or its primary oxidative excretion metabolites inhibit one or both of these enzymes, resulting in the observed toxicity from 6TP administration. Inhibition analysis of these purines revealed that 6-thiopurine has weak to no inhibition towards UDPGDH with a Ki of 288 MUM with regard to varying UDP-glucose, but 6-thiouric (primary end metabolite, fully oxidized at carbon 2 and 8, and highly retained by the body) has a near six-fold increased inhibition towards UDPGDH with a Ki of 7 MUM. Inhibition was also observed by 6-thioxanthine (oxidized at carbon 2) and 8-OH-6TP with Ki values of 54 and 14 MUM, respectively. Neither 6-thiopurine or its excretion metabolites were shown to inhibit UGT1A1. Our results show that the C2 and C8 positions of 6TP are pivotal in said inhibition towards UDPGDH and have no effect upon UGT1A1, and that blocking C8 could lead to new analogs with reduced, if not eliminated jaundice and liver toxicities. PMID- 29324278 TI - Oleanane-type triterpenoid saponins from Lysimachia fortunei Maxim. AB - Six previously undescribed oleanane-type triterpenoid saponins, fortunosides A-F, together with six known ones, were isolated from the aerial parts of Lysimachia fortunei Maxim. Their structures were established by spectroscopic data analyses (1D, 2D-NMR and HRESIMS) and chemical methods. All isolated triterpenoid saponins were evaluated for their cytotoxicity against four human liver cancer cell lines (SMMC-7721, Hep3B, HuH7, and SK-Hep-1). Three saponins with the aglycone protoprimulagenin A exhibited moderate cytotoxicity against all of the tested human cancer cell lines, with IC50 values ranging from 4.76 to 15.12 MUM. PMID- 29324280 TI - Effective phospholipids removing microelution-solid phase extraction LC-MS/MS method for simultaneous plasma quantification of aripiprazole and dehydro aripiprazole: Application to human pharmacokinetic studies. AB - A simple liquid chromatography-tandem mass spectrometry (LC-MS/MS) method has been developed and validated for simultaneous quantification of aripiprazole and its active metabolite, dehydro-aripiprazole, in human plasma. Stable isotopically labeled aripiprazole, aripiprazole-D8, has been used as the internal standard (IS) for both analytes. Only 200 MUl of human plasma was needed for analyte extraction, using effective phospholipids-eliminating three-step microelution solid-phase extraction (SPE, Oasis PRiME HLB 96-well MUElution Plate). An ACE C18 PFP column was applied for chromatographic separation at 25 degrees C, protected by a 0.2-MUm on-line filter. A combination of ammonium formate (5 mM) acetonitrile (pH 4.0; 65:35, v/v) was used as mobile phase and the chromatogram was run under gradient conditions at a flow rate of 0.6 ml/min. Run time lasted 5 min, followed by a re-equilibration time of 3 min, to give a total run time of 8 min. Five MUl of the sample was injected into the chromatographic system. Aripiprazole, dehydro-aripiprazole and IS were detected using the mode multiple reaction monitoring in the positive ionization mode. The method was linear in the concentration range of 0.18-110 ng/ml and 0.35-100 ng/ml for aripiprazole and dehydro-aripiprazole, respectively. Our method has been validated according to the recommendations of regulatory agencies through tests of precision, accuracy, recovery, matrix effect, stability, sensitivity, selectivity and carry-over. Our microelution-SPE method removes more than 99% of main plasma phospholipids compared to protein precipitation and was successfully applied to several bioequivalence studies. PMID- 29324281 TI - Chemical profiling of Euphorbia fischeriana Steud. by UHPLC-Q/TOF-MS. AB - Ultra-high-performance liquid chromatography coupled with quadrupole/time-of flight mass spectrometry (UHPLC-Q/TOF-MS) in positive ion mode was used to profile and identify the major constituents in Euphorbia fischeriana Steud. (E. fischeriana). An Agilent ZORBAX SB-C18 column was used to separate the crude extract of E. fischeriana, and the mobile phases were acetonitrile and 0.1% aqueous formic acid (v/v). A total of 40 peaks were detected, and 37 components, including phloroglucinol derivatives, diterpenoids and nitrogenous compounds, were identified based on their accurate masses and fragmentation characteristics. The chemical structures of 7 of the detected compounds were determined by comparing standard compounds to the compounds that were isolated from E. fischeriana. Reasonable fragmentation mechanisms and key fragment ions of the four jolkinolide components were determined to aid in the identification of the other diterpenoids in E. fischeriana. In addition, the compound corresponding to peak 18, namely, jolkinomethylide, was determined to be new, and its chemical structure was determined and elucidated based on MS and NMR spectroscopic data. The present study provided valuable information on the new components in E. fischeriana and established a practical method for evaluating the quality of E. fischeriana. PMID- 29324282 TI - Influence of glycan modification on IgG1 biochemical and biophysical properties. AB - Monoclonal antibodies (mAbs) are the fastest growing class of biopharmaceuticals. The specific therapeutic tasks vary among different mAbs, which may include neutralization of soluble targets, activation of cytotoxic pathways, targeted drug delivery, and diagnostic imaging. The specific therapeutic goal defines which interactions of the antibody with its multiple physiological partners are most critical for function, and which ones are irrelevant or indeed detrimental. In this work, we explored the ability of the glycan chains to affect IgG1 interaction with two key receptor families, FcRn and gamma-type Fc receptors, as well as the influence of glycan composition on the conformation and stability of the antibody molecule. Three different glycan-modified forms of IgG1 (fully deglycosylated, hypergalactosylated and hypersialylated) were produced and characterized alongside the unmodified mAb molecule. Biophysical measurements did not reveal any changes that would be indicative of alterations in the higher order structure or increased aggregation propensity for any of the three glycoforms compared to the unmodified mAb, although the CH2 domain was shown to have reduced thermal stability in the fully deglycosylated form. No significant changes were observed for the hypergalactosylated and hypersialylated forms of IgG1 with regards to binding to FcRn, FcgammaRIIA and FcgammaRIIIA, suggesting that neither half-life in circulation nor their ability to induce an immune response are likely to be affected by these modifications of the glycan chains. In contrast, no measurable binding was observed for the deglycosylated form of IgG1 with either FcgammaRIIA or FcgammaRIIIA, although this form of the antibody retained the ability to associate with FcRn. These highly specific patterns of attenuation of Fc receptor recognition can be exploited in the future for therapeutic purposes. PMID- 29324283 TI - A novel electrochemiluminescent biosensor based on resonance energy transfer between poly(9,9-di-n-octylfluorenyl-2,7-diyl) and 3,4,9,10-perylenetetracar boxylic acid for insulin detection. AB - An electrochemiluminescencent (ECL) biosensor was designed for the determination of insulin using a novel ECL resonance energy transfer (ECL-RET) strategy. In this strategy, carboxyl poly(9,9-dioctyfluorenyl-2,7-diyl) dots (PFO dots) were worked as ECL donor and 3,4,9,10-perylenetetracar-boxylic acid (PTCA) exploited as ECL acceptor, and hydrogen peroxide (H2O2) employed as the coreactant. The ECL donor and ECL acceptor were separately labeled with primary antibody (Ab1) and secondary antibody (Ab2), forming a sensing interface to the analyte target, insulin. In this expected sandwich-type ECL biosensor, PFO dots acted as sensing platform and PTCA employed as labels to quench the ECL emission of PFO dots. During the determination process, ECL signal of PFO dots was decreased in a gradual way by the increase of insulin concentration, and the quenching mechanism was also investigated. Under the optimal experimental conditions, the constructed biosensor exhibited an excellent performance, including a wide linear range from 1.0 * 10-5ng/mL to 1.0 * 102ng/mL, low detection limit of 3.0 * 10-6ng/mL, good stability and selectivity for the detection of insulin. This pair of PFO-PTCA, as a new donor-acceptor pair in ECL-RET system, would provide a promising platform for bioanalysis in ECL field. PMID- 29324284 TI - A novel cytosensor based on Pt@Ag nanoflowers and AuNPs/Acetylene black for ultrasensitive and highly specific detection of Circulating Tumor Cells. AB - Circulating tumor cells (CTCs), as the cellular origin of metastasis, are cancer cells that break away from a primary tumor and circulate in the peripheral blood. And they provide a wealth of information about tumor phenotype. Here, this work reported a novel ultrasensitive immunoassay protocol for the detection of CTCs by using Pt@Ag nanoflowers (Pt@AgNFs) and AuNPs/Acetylene black (AuNPs/AB) nanomaterial. In the established approach, AuNPs/AB nanomaterial was used as substrate material to increase the specific surface area and enhance the conductivity of the gold electrode. Protein G was used for oriented immobilization of capture antibody, which strongly improved the capture efficiency of MCF-7 cells. The innovatively synthesized Pt@AgNFs by our group with high specific surface area and good biocompatibility were not only as the carriers of signal antibodies (Ab2) but also catalyzed the reduction of H2O2, which effectually amplified the current signal. A linear relationship between current signals and the concentrations of CTCs was obtained in the range from 20 to 1*106 cells mL-1 and the detection limit is as low as 3 cells mL-1 on condition of acceptable stability and reproducibility. Furthermore, the as proposed cytosensor showed excellent performance in the detection of CTCs in human blood samples. These results suggest that the proposed cytosensor will be a promising application for accurately quantitative detection of CTCs. PMID- 29324285 TI - Lithium as an emerging environmental contaminant: Mobility in the soil-plant system. AB - Contamination of soil with lithium (Li) is likely to increase due to its wider dispersal in the environment, associated in particular, with the disposal of the now ubiquitous Li-ion batteries. There is, however, a paucity of information on the behaviour of Li in the soil-plant system. We measured the sorption of added Li to soil, and uptake of Li by food and fodder species. Around New Zealand, soil concentrations were shown to range from 0.08 mg/kg to 92 mg/kg, and to be positively correlated with clay content. Most geogenic Li in soil is insoluble and hence unavailable to plants but, when Li+ is added to soil, there is only limited sorption of Li. We found that Li sorption increased with increasing soil pH, and decreased proportionately with increasing Li concentrations. Compared to other cations in soil, Li is mobile and may leach into receiving waters, be taken up by plants, or have other biological impacts. In a soil spiked with just 5 mg/kg, plants took up several hundred mg/kg Li into leaves with no reduction in biomass. Lithium appears to be a phloem immobile element, with the highest concentrations occurring in the older leaves and the lowest concentrations occurring in the seeds or fruits. These results may raise concerns and risks in situations where food and fodder crops are associated with waste disposal. PMID- 29324286 TI - Digit ratio (2D:4D) and circulating testosterone, oestradiol, and progesterone levels across the menstrual cycle. AB - BACKGROUND: Digit ratio (2D:4D) is used by researchers as an indicator of prenatal sex hormone exposure. Two previous studies have examined associations between 2D:4D and circulating sex steroid concentrations across the menstrual cycle in adult females. One reported that digit ratio correlated positively with oestradiol levels, whereas the other found no such effect; neither observed significant associations with progesterone. AIMS: To examine associations between 2D:4D, as well as asymmetry (i.e. right minus left 2D:4D), and circulating sex steroids across the menstrual cycle. STUDY DESIGN: Correlational. SUBJECTS: 32 naturally cycling adult females from rural southern Poland. OUTCOME MEASURES: Salivary oestradiol, progesterone, testosterone, and testosterone to oestradiol ratio (T:O) measured during the follicular, peri-ovulatory, and luteal phases. Average levels across the cycle were also examined. RESULTS AND CONCLUSIONS: Asymmetry in digit ratio correlated positively with oestradiol at each phase, as well as with average levels across the cycle. Each association, other than that relating to average levels, remained statistically significant after a range of covariates had been controlled for. No other significant correlations were observed between digit ratio variables and circulating hormone levels. Our results might suggest that low exposure to androgens and/or high exposure to oestrogens during gestation is a predictor of high oestradiol levels in naturally cycling females of reproductive age. However, considering that it was asymmetry in digit ratio, and not either right or left 2D:4D, that was a significant predictor, it is also possible that these effects reflect more general associations between bilateral asymmetry and circulating oestradiol levels. PMID- 29324287 TI - Expression of heterologous transporters in Saccharomyces kudriavzevii: A strategy for improving yeast salt tolerance and fermentation performance. AB - S. kudriavzevii has potential for fermentations and other biotechnological applications, but is sensitive to many types of stress. We tried to increase its tolerance and performance via the expression of various transporters from different yeast species. Whereas the overexpression of Z. rouxii fructose uptake systems (ZrFfz1 and ZrFsy1) or a glycerol importer (ZrStl1) did not improve the ability of S. kudriavzevii to consume fructose and survive osmotic stress, the expression of alkali-metal-cation exporters (ScEna1, ScNha1, YlNha2) improved S. kudriavzevii salt tolerance, and that of ScNha1 also the fermentation performance. The level of improvement depended on the type and activity of the transporter suggesting that the natural sensitivity of S. kudriavzevii cells to salts is based on a non-optimal functioning of its own transporters. PMID- 29324288 TI - Description of an orthologous cluster of ochratoxin A biosynthetic genes in Aspergillus and Penicillium species. A comparative analysis. AB - Ochratoxin A (OTA) is one of the most important mycotoxins due to its toxic properties and worldwide distribution which is produced by several Aspergillus and Penicillium species. The knowledge of OTA biosynthetic genes and understanding of the mechanisms involved in their regulation are essential. In this work, we obtained a clear picture of biosynthetic genes organization in the main OTA-producing Aspergillus and Penicillium species (A. steynii, A. westerdijkiae, A. niger, A. carbonarius and P. nordicum) using complete genome sequences obtained in this work or previously available on databases. The results revealed a region containing five ORFs which predicted five proteins: halogenase, bZIP transcription factor, cytochrome P450 monooxygenase, non-ribosomal peptide synthetase and polyketide synthase in all the five species. Genetic synteny was conserved in both Penicillium and Aspergillus species although genomic location seemed to be different since the clusters presented different flanking regions (except for A. steynii and A. westerdijkiae); these observations support the hypothesis of the orthology of this genomic region and that it might have been acquired by horizontal transfer. New real-time RT-PCR assays for quantification of the expression of these OTA biosynthetic genes were developed. In all species, the five genes were consistently expressed in OTA-producing strains in permissive conditions. These protocols might favour futures studies on the regulation of biosynthetic genes in order to develop new efficient control methods to avoid OTA entering the food chain. PMID- 29324289 TI - Phylogenetic analysis reveals three distinct epidemiological profiles in Dutch and Flemish blood donors with hepatitis B virus infection. AB - During 2006-2016, hepatitis B virus (HBV) was detected in nearly 400 blood donors in the Netherlands and Flanders. Donor demographics and self-reported risk factors as disclosed during the donor exit interview were compared to HBV phylogenies of donor and reference sequences. First-time donors with chronic HBV infection were often immigrants (67%) infected with genetically highly diverse strains of genotypes A (32%), B (8%), C (6%), D (53%) and E to H (1%). Each subtype was strongly associated with donor ethnicity. In contrast, 57/62 (93%) of acute/recent HBV infections occurred among indigenous donors, of whom 67% was infected with one specific widely circulating epidemic HBV-A2 lineage. HBV typing identified three distinct epidemiological profiles: the import of chronic HBV infections through migration, longstanding transmission of non-epidemic HBV-A2 strains within western-Europe, and the active transmission of one epidemic HBV-A2 strain most likely fueled by sexual risk behavior. PMID- 29324290 TI - Ross River virus envelope glycans contribute to disease through activation of the host complement system. AB - Mannose binding lectin (MBL) generally plays a protective role during viral infection, yet MBL-mediated complement activation promotes Ross River virus (RRV) induced inflammatory tissue destruction, contributing to arthritis and myositis. As MBL binds to carbohydrates, we hypothesized that N-linked glycans on the RRV envelope glycoproteins act as ligands for MBL. Using a panel of RRV mutants lacking the envelope N-linked glycans, we found that MBL deposition onto infected cells was dependent on the E2 glycans. Moreover, the glycan-deficient viruses exhibited reduced disease and tissue damage in a mouse model of RRV-induced myositis compared to wild-type RRV, despite similar viral load and inflammatory infiltrates within the skeletal muscle. Instead, the reduced disease induced by glycan-deficient viruses was linked to decreased MBL deposition and complement activation within inflamed tissues. These results demonstrate that the viral N linked glycans promote MBL deposition and complement activation onto RRV-infected cells, contributing to the development of RRV-induced myositis. PMID- 29324292 TI - Use of sperm DNA integrity as a marker for exposure to contamination in Palaemon serratus (Pennant 1777): Intrinsic variability, baseline level and in situ deployment. AB - In a previous study, the Comet assay was optimized for Palaemon serratus prawns in order to propose a biomarker for sperm quality in this species. However, better knowledge of its basal level and its natural variability, related to intrinsic biotic and environmental abiotic factors, is required before any relevant use of this biomarker in the field. To fulfill this goal, the present study proceeded in three steps: (i) the temporal variability of DNA integrity was followed monthly in a reference population over a 2-year period, (ii) the correlation between the main intrinsic biotic (i.e. size, weight and molting stage) and abiotic factors (i.e. water temperature) were recorded in the field, and the basal DNA integrity was assessed in order to scrutinize any confounding influence of factors unrelated to toxic response, (iii) the baseline level was used to discriminate biomarker response among different stations displaying contrasting contamination levels. The results of the two-year monitoring in the reference population revealed no correlation between the levels of spermatozoa DNA damage and temperature, body size, weight or molting stage. Only a slight variability between monthly samplings was detected. On the basis of these field collected data, we defined a reference distribution (i.e. 52.6 +/- 5.6 A.U) with a threshold value (i.e. 61.7 A.U). Finally, this threshold value proved its relevance to discriminate among stations with contrasting pollution levels around the Seine Bay. Indeed, the results suggest significant DNA damage in populations nearest the Seine estuary, a major source of contaminants in the Bay, and a lower effect in populations further away from the estuary. The overall conclusion was that the Comet assay on P. serratus spermatozoa could be a useful tool for the monitoring of the toxicological print within sperm and main globally the contamination exposure of crustaceans in marine waters. PMID- 29324293 TI - Biofilms, active substrata, and me. AB - Having worked with biofilms since the 1970s, I know that they are ubiquitous in nature, of great value in water technology, and scientifically fascinating. Biofilms are naturally able to remove BOD, transform N, generate methane, and biodegrade micropollutants. What I also discovered is that biofilms can do a lot more for us in terms of providing environmental services if we give them a bit of help. Here, I explore how we can use active substrata to enable our biofilm partners to provide particularly challenging environmental services. In particular, I delve into three examples in which an active substratum makes it possible for a biofilm to accomplish a task that otherwise seems impossible. The first example is the delivery of hydrogen gas (H2) as an electron donor to drive the reduction and detoxification of the rising number of oxidized contaminant: e.g., perchlorate, selenate, chromate, chlorinated solvents, and more. The active substratum is a gas-transfer membrane that delivers H2 directly to the biofilm in a membrane biofilm reactor (MBfR), which makes it possible to deliver a low solubility gaseous substrate with 100% efficiency. The second example is the biofilm anode of a microbial electrochemical cell (MxC). Here, the anode is the electron acceptor for anode-respiring bacteria, which "liberate" electrons from organic compounds and send them ultimately to a cathode, where we can harvest valuable products or services. The anode's potential is a sensitive tool for managing the microbial ecology and reaction kinetics of the biofilm anode. The third example is intimately coupled photobiocatalysis (ICPB), in which we use photocatalysis to enable the biodegradation of intrinsically recalcitrant organic pollutants. Photocatalysis transforms the recalcitrant organics just enough so that the products are rapidly biodegradable substrates for bacteria in a nearby biofilm. The macroporous substratum, which houses the photocatalyst on its exterior, actively provides donor substrate and protects the biofilm from UV light and free radicals in its interior. These three well-developed topics illustrate how and why an active substratum expands the scope of what biofilms can do to enhance water sustainability. PMID- 29324291 TI - Disulfide-masked iron prochelators: Effects on cell death, proliferation, and hemoglobin production. AB - The iron metabolism of malignant cells, which is altered to ensure higher acquisition and utilization, motivates the investigation of iron chelation strategies in cancer treatment. In a prochelation approach aimed at increasing intracellular specificity, disulfide reduction/activation switches are incorporated on iron-binding scaffolds resulting in intracellularly activated scavengers. Herein, this strategy is applied to several tridentate donor sets including thiosemicarbazones, aroylhydrazones and semicarbazones. The novel prochelator systems are antiproliferative in breast adenocarcinoma cell lines (MCF-7 and metastatic MDA-MB-231) and do not result in the intracellular generation of oxidative stress. Consistent with iron deprivation, the tested prochelators lead to cell-cycle arrest at the G1/S interface and induction of apoptosis. Notably, although hemoglobin-synthesizing blood cells have the highest iron need in the human body, no significant impact on hemoglobin production was observed in the MEL (murine erythroleukemia) model of differentiating erythroid cells. This study provides new information on the intracellular effects of disulfide-based prochelators and indicates aroylhydrazone (AH1-S)2 as a promising prototype of a new class of antiproliferative prochelator systems. PMID- 29324294 TI - Microbial community of a gasworks aquifer and identification of nitrate-reducing Azoarcus and Georgfuchsia as key players in BTEX degradation. AB - We analyzed a coal tar polluted aquifer of a former gasworks site in Thuringia (Germany) for the presence and function of aromatic compound-degrading bacteria (ACDB) by 16S rRNA Illumina sequencing, bamA clone library sequencing and cultivation attempts. The relative abundance of ACDB was highest close to the source of contamination. Up to 44% of total 16S rRNA sequences were affiliated to ACDB including genera such as Azoarcus, Georgfuchsia, Rhodoferax, Sulfuritalea (all Betaproteobacteria) and Pelotomaculum (Firmicutes). Sequencing of bamA, a functional gene marker for the anaerobic benzoyl-CoA pathway, allowed further insights into electron-accepting processes in the aquifer: bamA sequences of mainly nitrate-reducing Betaproteobacteria were abundant in all groundwater samples, whereas an additional sulfate-reducing and/or fermenting microbial community (Deltaproteobacteria, Firmicutes) was restricted to a highly contaminated, sulfate-depleted groundwater sampling well. By conducting growth experiments with groundwater as inoculum and nitrate as electron acceptor, organisms related to Azoarcus spp. were identified as key players in the degradation of toluene and ethylbenzene. An organism highly related to Georgfuchsia toluolica G5G6 was enriched with p-xylene, a particularly recalcitrant compound. The anaerobic degradation of p-xylene requires a metabolic trait that was not described for members of the genus Georgfuchsia before. In line with this, we were able to identify a putative 4-methylbenzoyl-CoA reductase gene cluster in the respective enrichment culture, which is possibly involved in the anaerobic degradation of p-xylene. PMID- 29324295 TI - Analytical determination of the reducing and stabilization agents present in different Zostera noltii extracts used for the biosynthesis of gold nanoparticles. AB - The objective of this work was to ascertain the nature of the components responsible for the reducing and stabilizing properties of Zostera noltii extracts that lead to gold nanoparticle formation using chemical techniques of analysis. In order to achieve this aim, we try the synthesis of AuNPs with three different extracts from plants collected in the Bay of Cadiz (Spain). The n butanol extract produced the best results. Taking this into account, four fractions were isolated by Sephadex LH-20 column chromatography from this extract and we studied their activity. The chemical study of these fractions led to the isolation of several flavone sulfates and these were identified as the species' responsible for the formation and stabilization of the AuNPs. Flavone sulfates were purified by high performance liquid chromatography and the structures were established by means of spectroscopic methods nuclear magnetic resonance and mass spectroscopy. AuNPs have an average lifetime of about 16weeks. Additionally, the morphology and crystalline phase of the gold nanoparticles were characterized by transmission electron microscopy. The composition of the nanoparticles was evaluated by electron diffraction and energy dispersive X-ray spectroscopy. An 88% of the gold nanoparticles has a diameter in the range 20-35nm, with an average size of 26+/-2nm. PMID- 29324297 TI - Longitudinal joint loading in patients before and up to one year after unilateral total hip arthroplasty. AB - Abnormal kinematics and kinetics have been reported in hip osteoarthritis (OA) patients before and after total hip arthroplasty (THA). These changes can affect the loading of the ipsilateral hip, as well as the contralateral hip and knee joint. As it is not clear how hip and knee loading evolves in THA patients during the first year after surgery, the goal of this study is to define how joint loading changes in patients before and at three evaluation times after THA surgery. Musculoskeletal modelling in combination with gait analysis data was used to calculate hip and knee contact forces in 14 patients before and 3-, 6- and 12-months after unilateral THA, as well as in 18 healthy controls. Results showed that bilateral hip and knee loading were decreased compared to controls, both before and after THA surgery. Loading symmetry was altered compared to controls at 3-months post-surgery for the hip and at all evaluation times, except for 6-months post-surgery, for the knee, with ipsilateral joint loading decreased compared to the contralateral side. To conclude, 12-months after THA joint loading was not normalized, with both hip and knee loading in patients decreased compared to controls. Therefore, no overloading of the ipsi- or contralateral hip and knee joint was found before and up to one year after unilateral THA. PMID- 29324296 TI - Inertial sensing of the motion speed effect on the sit-to-walk activity. AB - The STW execution at motion speed faster than normal most possibly enhances the risk for balance loss due to the increase in body segment accelerations. The purpose of the study was to use inertial sensing to examine the effect of motion speed on the STW segmental kinematics and its temporal events. Eighteen young men (20.7 +/- 2.0 years) performed STW trials at preferred (PS) and fast (FS) motion speed. Data were collected with Xsens inertial sensors positioned at the trunk, thigh, shank, and foot segments. The maximum segmental values of angular displacement, angular velocity and linear acceleration, the duration of total STW (ttotal), the absolute and relative (% ttotal) phase duration (Flexion, Transition, Extension, Walking) and, the absolute and relative time taken to reach each maximum value were determined. In FS, ttotal and the absolute phase duration (except for Transition), were all significantly shorter (p = 0.000). The relative phase duration was not altered (p > 0.05), except for the Extension shortening (p = 0.001). The maximum angular displacement was altered only for the thigh (decreased, p = 0.038) and shank (increased, p = 0.004). Maximum angular velocities and linear accelerations were all significantly increased (p = 0.000 for all). The absolute time to reach the maximum values shortened in FS (p <= 0.05), while, the relative times were not altered (p > 0.05), except for the delayed trunk maximum angular displacement (p = 0.039). Inertial sensing appears to identify the motion speed effect on STW segmental kinematics and their temporal events in healthy young men. The results of the study may contribute improving the preventive or rehabilitation interventions in persons with impaired postural control. PMID- 29324298 TI - Calibration of raw accelerometer data to measure physical activity: A systematic review. AB - Most of calibration studies based on accelerometry were developed using count based analyses. In contrast, calibration studies based on raw acceleration signals are relatively recent and their evidences are incipient. The aim of the current study was to systematically review the literature in order to summarize methodological characteristics and results from raw data calibration studies. The review was conducted up to May 2017 using four databases: PubMed, Scopus, SPORTDiscus and Web of Science. Methodological quality of the included studies was evaluated using the Landis and Koch's guidelines. Initially, 1669 titles were identified and, after assessing titles, abstracts and full-articles, 20 studies were included. All studies were conducted in high-income countries, most of them with relatively small samples and specific population groups. Physical activity protocols were different among studies and the indirect calorimetry was the criterion measure mostly used. High mean values of sensitivity, specificity and accuracy from the intensity thresholds of cut-point-based studies were observed (93.7%, 91.9% and 95.8%, respectively). The most frequent statistical approach applied was machine learning-based modelling, in which the mean coefficient of determination was 0.70 to predict physical activity energy expenditure. Regarding the recognition of physical activity types, the mean values of accuracy for sedentary, household and locomotive activities were 82.9%, 55.4% and 89.7%, respectively. In conclusion, considering the construct of physical activity that each approach assesses, linear regression, machine-learning and cut-point-based approaches presented promising validity parameters. PMID- 29324300 TI - Hippocampal insulin resistance links maternal obesity with impaired neuronal plasticity in adult offspring. AB - OBJECTIVE: Maternal obesity and a disturbed metabolic environment during pregnancy and lactation have been shown to result in many long-term health consequences for the offspring. Among them, impairments in neurocognitive development and performance belong to the most dreaded ones. So far, very few mechanistic approaches have aimed to determine the responsible molecular events. METHODS: In a mouse model of maternal diet-induced obesity and perinatal hyperinsulinemia, we assessed adult offspring's hippocampal insulin signaling as well as concurrent effects on markers of hippocampal neurogenesis, synaptic plasticity and function using western blotting and immunohistochemistry. In search for a potential link between neuronal insulin resistance and hippocampal plasticity, we additionally quantified protein expression of key molecules of synaptic plasticity in an in vitro model of acute neuronal insulin resistance. RESULTS: Maternal obesity and perinatal hyperinsulinemia result in adult hippocampal insulin resistance with subsequently reduced hippocampal mTor signaling and altered expression of markers of neurogenesis (doublecortin), synaptic plasticity (FoxO1, pSynapsin) and function (vGlut, vGAT) in the offspring. The observed effects are independent of the offspring's adult metabolic phenotype and can be associated with multiple previously reported behavioral abnormalities. Additionally, we demonstrate that induction of insulin resistance in cultured hippocampal neurons reduces mTor signaling, doublecortin and vGAT protein expression. CONCLUSIONS: Hippocampal insulin resistance might play a key role in mediating the long-term effects of maternal obesity and perinatal hyperinsulinemia on hippocampal plasticity and the offspring's neurocognitive outcome. PMID- 29324299 TI - Boys with conduct problems and callous-unemotional traits: Neural response to reward and punishment and associations with treatment response. AB - Abnormalities in reward and punishment processing are implicated in the development of conduct problems (CP), particularly among youth with callous unemotional (CU) traits. However, no studies have examined whether CP children with high versus low CU traits exhibit differences in the neural response to reward and punishment. A clinic-referred sample of CP boys with high versus low CU traits (ages 8-11; n = 37) and healthy controls (HC; n = 27) completed a fMRI task assessing reward and punishment processing. CP boys also completed a randomized control trial examining the effectiveness of an empirically-supported intervention (i.e., Stop-Now-And-Plan; SNAP). Primary analyses examined pre treatment differences in neural activation to reward and punishment, and exploratory analyses assessed whether these differences predicted treatment outcome. Results demonstrated associations between CP and reduced amygdala activation to punishment independent of age, race, IQ and co-occurring ADHD and internalizing symptoms. CU traits were not associated with reward or punishment processing after accounting for covariates and no differences were found between CP boys with high versus low CU traits. While boys assigned to SNAP showed a greater reduction in CP, differences in neural activation were not associated with treatment response. Findings suggest that reduced sensitivity to punishment is associated with early-onset CP in boys regardless of the level of CU traits. PMID- 29324301 TI - Depression and fatigue in multiple sclerosis: Relation to exposure to violence and cerebrospinal fluid immunomarkers. AB - Multiple sclerosis (MS) is a neuroinflammatory condition characterized by chronic dysregulation of immune responses leading to repeated episodes of inflammation in the central nervous system. Depression and fatigue are common among MS patients, even in early disease phases, and the disease course can be negatively affected by stressful events. IL-6 and IL-8 have been associated with depression and stressful life events in non-MS patients. The aim of this study was to examine the relationships between depression, fatigue, and exposure to violence, with IL 6 and IL-8 levels in the cerebrospinal fluid (CSF) of MS patients. Levels of IL-6 and -8 were analyzed in the CSF of 47 patients with relapsing-remitting MS. Correlations between IL-6 and IL-8 levels and self-rated depression and fatigue symptoms, as well as clinician-rated history of being exposed to interpersonal violence, were analyzed with correction for age, sex and MS disability status. IL 6 correlated significantly (p < 0.05) with depressive symptoms (adjusted Spearman's rho = 0.39), fatigue (rho = 0.39), and exposure to violence in adult life (rho = 0.35). Depression correlated with both fatigue and being exposed to violence. Associations were not present among patients exposed to disease modifying drugs. In exploratory analyses, the relationship between exposure to violence and IL-6 was non-significant when controlled for depression. Further research should focus on replication of these results, as well as exploring the impact of stressful life events on immune regulation and the clinical characteristics and prognosis of MS patients. PMID- 29324302 TI - Addressing the paradox of increasing mastectomy rates in an era of de-escalation of therapy: Communication strategies. AB - Breast conservation therapy (BCT) was established as the preferred modality of surgical treatment for early stage breast cancer in the early 1990's. Yet, rising mastectomy rates have been observed over the last decade. This increase is a cause for concern as recent large population-based studies have consistently reported improved breast cancer-specific survival and local control rates with BCT, in comparison with mastectomy. There is a pressing need to formulate strategies to effectively inform both patients and practitioners about current data, in the hope of reversing rising mastectomy rates to optimise survival outcomes. Based on the available evidence relating to the motivators for a mastectomy, a format for presenting data to bridge the existing knowledge deficit for effective patient counselling is proposed in this review. PMID- 29324303 TI - First-line vs second-line fulvestrant for hormone receptor-positive advanced breast cancer: A post-hoc analysis of the CONFIRM study. AB - OBJECTIVES: The double-blind, phase III CONFIRM study (NCT00099437) evaluated fulvestrant 500 mg vs fulvestrant 250 mg in postmenopausal women with hormone receptor-positive locally advanced/metastatic breast cancer (LA/MBC). This post hoc analysis investigated the efficacy and safety of fulvestrant given either first-line or second-line for advanced disease. MATERIALS & METHODS: Progression free survival (PFS) and overall survival (OS) with fulvestrant 500 mg vs fulvestrant 250 mg was evaluated using unadjusted log-rank tests in patients treated in the first- (progression during or within 12 months after completing adjuvant endocrine therapy; n = 387) and second-line (following endocrine therapy for LA/MBC; n = 343) settings. RESULTS: First-line fulvestrant 500 mg significantly prolonged PFS vs fulvestrant 250 mg (median PFS 5.6 vs 4.2 months; hazard ratio [HR] 0.80; 95% confidence interval [CI] 0.64-1.00; p = .047). Median PFS was numerically greater with second-line fulvestrant 500 mg vs fulvestrant 250 mg (7.9 vs 6.3 months; HR 0.80; 95% CI 0.64-1.02; p = .068). At data cut-off (75.5% maturity), median OS with first-line fulvestrant 500 mg was 23.2 vs 22.1 months with fulvestrant 250 mg (HR 0.87; 95% CI 0.70-1.10; p = .251), and 29.2 vs 22.8 months, respectively, in the second-line (HR 0.75; 95% CI 0.58-0.96; p = .020). The safety profile was broadly comparable between dose groups and across treatment lines, and consistent with the overall patient population. CONCLUSION: The superiority of fulvestrant 500 mg over fulvestrant 250 mg in patients with LA/MBC in CONFIRM was consistent in both the first- and second-line settings for PFS, and numerically greater in both settings for OS. PMID- 29324304 TI - Injectable polypeptide hydrogel for dual-delivery of antigen and TLR3 agonist to modulate dendritic cells in vivo and enhance potent cytotoxic T-lymphocyte response against melanoma. AB - Transplantation of immune cells manipulated in vitro to dictate immune responses in the body is promising in cancer immunotherapy. However, this approach suffers from low cell survival after administration, insufficient cell homing to lymph nodes, and off-target. Here we demonstrate an injectable and self-assembled poly(l-valine) hydrogel as the delivery carrier of cargoes including antigen and immunopotentiator for DCs modulation. Our results indicate the vaccine formulation composed of tumor cell lysates (TCL), TLR3 agonist, poly(I:C) and polypeptide hydrogel can robustly recruit, activate and mature DCs in vitro and in vivo by sustained release of TCL and poly(I:C). Hydrogel as the delivery system significantly improves antigen persistence at the injection site and antigen drainage to lymph nodes. Strikingly, subcutaneous injection of hydrogel based vaccine formulations in melanoma-bearing mice elicits good antitumor efficiency by evoking strong cytotoxic T-lymphocyte immune response. Hydrogel vaccine significantly promotes the production of CD8+ T cells in draining lymph nodes and tumor infiltrating T-lymphocytes. These findings suggest that in vivo program of DCs by injectable polypeptide hydrogel encapsulated with antigen and immunopentiator is able to direct immune responses against cancer. Our study also implies that such a hydrogel may serve as a multifunctional delivery platform of vaccines. PMID- 29324306 TI - Mechanically resilient injectable scaffolds for intramuscular stem cell delivery and cytokine release. AB - A promising strategy for treating peripheral ischemia involves the delivery of stem cells to promote angiogenesis through paracrine signaling. Treatment success depends on cell localization, retention, and survival within the mechanically dynamic intramuscular (IM) environment. Herein we describe an injectable, in situ gelling hydrogel for the IM delivery of adipose-derived stem/stromal cells (ASCs), specifically designed to withstand the dynamic loading conditions of the lower limb and facilitate cytokine release from encapsulated cells. Copolymers of poly(trimethylene carbonate)-b-poly(ethylene glycol)-b-poly(trimethylene carbonate) diacrylate were used to modulate the properties of methacrylated glycol chitosan hydrogels crosslinked by thermally-initiated polymerization using ammonium persulfate and N,N,N',N'-tetramethylethylenediamine. The scaffolds had an ultimate compressive strain over 75% and maintained mechanical properties during compressive fatigue testing at physiological levels. Rapid crosslinking (<3 min) was achieved at low initiator concentration (5 mM). Following injection and crosslinking within the scaffolds, human ASCs demonstrated high viability (>90%) over two weeks in culture under both normoxia and hypoxia. Release of angiogenic and chemotactic cytokines was enhanced from encapsulated cells under sustained hypoxia, in comparison to normoxic and tissue culture polystyrene controls. When delivered by IM injection in a mouse model of hindlimb ischemia, human ASCs were well retained in the scaffold over 28 days and significantly increased the IM vascular density compared to untreated controls. PMID- 29324307 TI - Integrin alpha5beta1 suppresses rBMSCs anoikis and promotes nitric oxide production. AB - BACKGROUND: Cell based therapy has been heralded as a novel, promising therapeutic strategy for cardiovascular diseases including pulmonary arterial hypertension (PAH). However, the low survival rate after transplantation due to cell death via anoikis is a major obstacle in stem cell therapy. Cells adhesion via Integrin alpha5beta1 (ITGA5B1) has a tendency to exert higher maximum forces. The present study aimed to evaluate the potential protective effect of ITGA5B1 on rat bone marrow mesenchymal stem cells (rBMSCs) from anoikis. METHODS: Mononuclear cells were isolated by density gradient centrifugation with Ficoll, and rBMSCs cell surface markers were evaluated by flow cytometry. Osteogenic and adipocyte differentiation was determined by Alizarin Red S and Oil Red O staining respectively. The expression of Integrin A5 (ITGA5), Integrin B1 (ITGB1), eNOS and actived-caspase-3 mRNA or protein was confirmed by qPCR and western-blot. Cell adhesion, cell viability, anoikis and the migration of rBMSCs were also evaluated. Nitric oxide (NO) production was detected by the greiss assay. RESULTS: Co-infected with Integrin A5 and B1 lentivirus to rBMSCs increased ITGA5 and ITGB1 mRNA and protein expression. ITGA5B1 enhanced the cell adhesion, cell viability, cell migration and NO production but reduced the cell anoikis in rBMSCs/ITGA5B1 groups. CONCLUSION: Transduction of rat rBMSCs with ITGA5B1 lentivirus could prevent cell anoikis and increase NO production. PMID- 29324305 TI - Caveolin-mediated endocytosis of the Chlamydia M278 outer membrane peptide encapsulated in poly(lactic acid)-Poly(ethylene glycol) nanoparticles by mouse primary dendritic cells enhances specific immune effectors mediated by MHC class II and CD4+ T cells. AB - We previously developed a Chlamydia trachomatis nanovaccine (PPM) by encapsulating a chlamydial M278 peptide within poly(lactic acid)-poly(ethylene glycol) biodegradable nanoparticles that immunopotentiated Chlamydia-specific immune effector responses in mice. Herein, we investigated the mechanistic interactions of PPM with mouse bone marrow-derived dendritic cells (DCs) for its uptake, trafficking, and T cell activation. Our results reveal that PPM triggered enhanced expression of effector cytokines and chemokines, surface activation markers (Cd1d2, Fcgr1), pathogen-sensing receptors (TLR2, Nod1), co-stimulatory (CD40, CD80, CD86) and MHC class I and II molecules. Co-culturing of PPM-primed DCs with T cells from C. muridarum vaccinated mice yielded an increase in Chlamydia-specific immune effector responses including CD3+ lymphoproliferation, CD3+CD4+ IFN-gamma-secreting cells along with CD3+CD4+ memory (CD44high and CD62Lhigh) and effector (CD44high and CD62Llow) phenotypes. Intracellular trafficking analyses revealed an intense expression and colocalization of PPM predominantly in endosomes. PPM also upregulated the transcriptional and protein expression of the endocytic mediator, caveolin-1 in DCs. More importantly, the specific inhibition of caveolin-1 led to decreased expression of PPM-induced cytokines and co-stimulatory molecules. Our investigation shows that PPM provided enhancement of uptake, probably by exploiting the caveolin-mediated endocytosis pathway, endosomal processing, and MHC II presentation to immunopotentiate Chlamydia-specific immune effector responses mediated by CD4+ T cells. PMID- 29324308 TI - Antacids' side effect hyperuricaemia could be alleviated by long-term aerobic exercise via accelerating ATP turnover rate. AB - Hyperuricemia is the term for an abnormally high serum uric acid level. Many factors contribute to hyperuricemia, however no definite correlation between proton pump inhibitors (PPIs) and hyperuricemia has been reported before. Physical exercise also decreases serum uric acid levels. However, the detailed biochemical-regulatory mechanisms remain unknown. Here we found that adenylate deaminase activities are much higher in hyperuricemia patients than in the healthy people. Therefore, the patients have higher levels of adenosine metabolites hypoxanthine and uric acid. Acid-inhibitory drugs (antacids) significantly increased serum uric acid level and may lead to gout in the hyperuricemia patient. Long-term aerobic exercise significantly increased serum phosphorus and decreased serum ATP and its metabolites, and therefore decreased serum uric acid. Antacids slow down the ATP turnover rate and result in serum uric acid elevation subsequently. While the long-term aerobic exercise decreases serum uric acid levels by accelerating ATP turnover rate. The results imply that long-term aerobic exercise may be a useful strategy to prevent and treat hyperuricaemia. PMID- 29324309 TI - The promising future of ventricular restraint therapy for the management of end stage heart failure. AB - Complicated pathophysiological syndrome associated with irregular functioning of the heart leading to insufficient blood supply to the organs is linked to congestive heart failure (CHF) which is the leading cause of death in developed countries. Numerous factors can add to heart failure (HF) pathogenesis, including myocardial infarction (MI), genetic factors, coronary artery disease (CAD), ischemia or hypertension. Presently, most of the therapies against CHF cause modest symptom relief but incapable of giving significant recovery for long-term survival outcomes. Unfortunately, there is no effective treatment of HF except cardiac transplantation but genetic variations, tissue mismatch, differences in certain immune response and socioeconomic crisis are some major concern with cardiac transplantation, suggested an alternate bridge to transplant (BTT) or destination therapies (DT). Ventricular restraint therapy (VRT) is a promising, non-transplant surgical treatment wherein the overall goal is to wrap the dilated heart with prosthetic material to mechanically restrain the heart at end diastole, stop extra remodeling, and thereby ultimately improve patient symptoms, ventricular function and survival. Ventricular restraint devices (VRDs) are developed to treat end-stage HF and BTT, including the CorCap cardiac support device (CSD) (CSD; Acorn Cardiovascular Inc, St Paul, Minn), Paracor HeartNet (Paracor Medical, Sunnyvale, Calif), QVR (Polyzen Inc, Apex, NC) and ASD (ASD, X. Zhou). An overview of 4 restraint devices, with their precise advantages and disadvantages, will be presented. The accessible peer-reviewed literature summarized with an important considerations on the mechanism of restraint therapy and how this acquaintance can be accustomed to optimize and improve its effectiveness. PMID- 29324310 TI - 25-Hydroxyl-protopanaxatriol protects against H2O2-induced H9c2 cardiomyocytes injury via PI3K/Akt pathway and apoptotic protein down-regulation. AB - Oxidative stress injury and apoptosis are the main mechanisms of myocardial ischemia-reperfusion injury (MI/RI). Compounds with anti-oxidant properties can treat MI/RI. Therefore, identification of natural antioxidants such as herbs or botanical drugs is an ideal strategy to develop safe and effective anti-MI/RI drugs. Cardioprotective effects of Ginseng are well documented and are attributable to its anti-oxidant, anti-inflammatory, anti-tumorigenic, anti arrhythmic, anti-ischemic properties. Ginseng monomer 20(r)-dammarane -3 beta,6 alpha,12 beta,20,25-pentol(25-hydroxyl-Protopanaxatriol,25-OH-PPT), a novel compound, which belongs to panaxatriol category, is extracted from the leaves and stem of ginseng. It was first investigated for its anti-tumorigenic properties. In this study, we explored whether 25-OH-PTT plays a role in antioxidant stress injury and anti-apoptosis in cardiomyocytes. We also explored the mechanisms in order to provide a theoretical basis to develop 25-OH-PPT as a new drug for treatment of MI/RI. First, we used H2O2 to induce H9c2 cardiomyocytes in vitro resulting in an oxidative stress injury model and pretreated with 25-OH-PPT. Secondly, we examined the viability of H9c2 cells by MTT assay, the reactive oxygen species (ROS) content and mitochondrial membrane potential by flow cytometry as well as cell apoptosis by flow cytometry Annexin-FITC/PI and Hoechst 33258 staining. Furthermore, we pretreated H9c2 cells with PI3K inhibitor, LY294002, and observed the above phenomenon. Lastly, we examined the expressions of proteins related to the PI3K/Akt signaling pathway and the apoptotic proteins. We found that 25-OH-PPT can protect H9c2 cells against H2O2-induced injury, decrease apoptosis of H9c2 cells and ROS generation, and increase the mitochondrial membrane potential. It can also upregulate the protein expressions of p-Akt, p-eNOS, and Bcl-2 and down-regulate apoptotic proteins Bax and Caspase 3. Our results indicate that 25-OH-PPT inhibits H2O2-induced H9c2 cardiomyocytes injury through PI3K/Akt pathway. It may become a potential safe and effective traditional Chinese medicine monomer for treatment of MI/RI. PMID- 29324311 TI - Corilagin, a promising medicinal herbal agent. AB - Corilagin, a gallotannin, is one of the major active components of many ethnopharmacological plants. It was isolated from Caesalpinia coriaria (Jacq.) Willd. (dividivi) by Schmidt in 1951 for the first time. In the past few decades, corilagin was reported to exhibit anti-tumor, anti-inflammatory and hepatoprotective activities, etc. However, little attention was paid to its pharmacological properties due to the complicated and inefficient extract method. In recent years, with the development of extraction technology corilagin was much easier to obtain than before. Thus, people return to pay attention to its anti tumor, hepatoprotective, and anti-inflammatory activities, particularly as an anti-tumor agent candidate. Our research team had focused on the distribution, preparation and anti-tumor activity of corilagin since 2005. We found corilagin showed good anti-tumor activity on hepatocellular carcinoma and ovarian cancer. What's more, corilagin showed a low level of toxicity toward normal cells and tissues. Due to the extensive attention that corilagin has received, we present a systematic review of the pharmacological effects of corilagin. In this review, we summarized all the pharmacological effects of corilagin with a focus on the molecular mechanism of anti-tumor activity and show you how corilagin affected the signaling pathways of tumor cells as well as its physicochemical properties, distribution and preparation methods. PMID- 29324312 TI - The hypoxia-responsive long non-coding RNAs may impact on the tumor biology and subsequent management of breast cancer. AB - Long non-coding RNAs (lncRNAs) are DNA transcripts longer than 200 nucleotides without protein-coding potential. As they are key regulators of gene expression at chromatic, transcriptional and posttranscriptional level, they play important role in various biological and pathological processes. Dysregulation of lncRNAs has been observed in several diseases including cancer. Breast cancer is heterogeneous disease with many molecular subtypes specific in different prognosis and treatment responses. Hypoxia, a common micro-environmental feature of rapidly growing tumour is associated with metastases, recurrences and resistance to therapy. Aberrant expression of hypoxia related lncRNAs significantly correlates with poor outcomes in cancer patients, as the lncRNAs play an important regulatory role in the breast cancer-cell survival. Thus, a better understanding of lncRNAs role in the hypoxic conditions of breast cancer is crucial for precise understanding of the tumorigenesis, disease features and poor clinical outcome, especially in highly aggressive breast cancer subtypes (HER2-positive and triple-negative types). Moreover, lncRNAs may represent tumour marker predicting prognosis and therapeutic targets improving precise and personalized therapy for better patient's survival. In this review, we summarize the recent information on lncRNAs in breast cancer with special focus on the hypoxia-responsive lncRNAs and their potential impact on the prognosis, therapy algorithms and individual outcomes. Presented data helps in better understanding of the specific mechanisms predicting new therapeutic agents and strategies for the pharmacological intervention. PMID- 29324313 TI - Knockdown of TRIM37 suppresses the proliferation, migration and invasion of glioma cells through the inactivation of PI3K/Akt signaling pathway. AB - Tripartite motif 37 (TRIM37), a member of the TRIM protein family, was involved in the tumorigenesis of several types of cancer. However, the expression pattern and role of TRIM37 in glioma remain unclear. Therefore, the aim of the present study was to investigate the role of TRIM37 in glioma, and to determine the molecular mechanisms. Our results demonstrated that TRIM37 was highly expressed in human glioma tissues and cell liens. Additionally, knockdown of TRIM37 dramatically inhibited the proliferation, migration/invasion, and the epithelial mesenchymal transition (EMT) phenotype in glioma cells. Furthermore, knockdown of TRIM37 significantly reduced the levels of phosphorylated PI3K and Akt in U87MG cells, and an activator of PI3K/Akt signaling (SC79) partly reversed the inhibitory effects of si-TRIM37 on glioma cell proliferation and migration. Taken together, our results demonstrated that TRIM37 functions as an oncogene in the development and progression of glioma. TRIM37 knockdown inhibited the proliferation and invasion of human glioma cells at least in part through the inactivation of PI3K/Akt signaling pathway. PMID- 29324314 TI - Down-regulation of miR-133a/b in patients with myocardial infarction correlates with the presence of ventricular fibrillation. AB - MicroRNAs (miRNAs) are important regulators of physiologic and pathologic conditions of the heart. Animal models of heart diseases have shown that miRNAs may contribute to the development of arrhythmias. However, little is known about the expression of muscle- and cardiac-specific miRNAs in patients with myocardial infarction (MI) who have developed ventricular fibrillation (VF). Our study included 47 patients who had died from myocardial infarction (MI), 23 with clinically proven VF and 24 without VF. Autopsy samples of infarcted tissue and remote myocardium were available (n = 94). Heart tissue from 8 healthy trauma victims was included as control. Expression of miR-1, miR-133a/b and miR-208 was analyzed using real-time PCR (qPCR). In patients with MI with VF, we observed down-regulation of miR-133a/b, and this down-regulation was even stronger 2-7 days after MI. miR-208 was up-regulated in remote myocardium irrespective of the presence of VF. Deregulation of miR-1 and miR-208 was not related to the presence of VF. Our results suggest that down-regulation of miR-133a/b might contribute to the development of VF in patients with MI. However, up-regulation of miR-1 and miR-208 in remote myocardium might play a role in cardiac remodeling after MI, at least to certain degree. PMID- 29324315 TI - Histone demethylase KDM5A inhibits glioma cells migration and invasion by down regulating ZEB1. AB - Malignant gliomas are highly lethal cancers worldwide as tumor cells infiltrate to healthy brain tissue invariably. Histone demethylase KDM5A as an oncogene or tumor suppressor in cancer still has been controversial. KDM5A may have a different function in different type cancer cells. However, the specific roles of KDM5A in the progression of glioma remain undiscovered. In this study, we found that compared with primary glioma, metastasis glioma had low KDM5A levels. Besides, lower KDM5A levels were linked to poor survival in glioma cancer patients, indicating that KDM5A is a new prognostic marker for glioma cancer. KDM5A knockdown increases the invasive abilities of glioma cancer cells and changes the EMT markers. A mechanism, KDM5A suppressing the expression of ZEB1, and its catalytic activity is indispensable for anti-invasive function. Our study revealed that histone demethylase KDM5A exerts anti-invasiveness function partly through repressing oncogenic ZEB1 expression by mediating H3K4 demethylation. We also demonstrate that ZEB1 play a crucial role in KDM5A induced function. In summary, in this study, we showed that KDM5A has a crucial role in glioma and therefore may serve as a novel therapeutic target and prognostic marker in glioma. PMID- 29324316 TI - MicroRNA-145 alleviates high glucose-induced proliferation and migration of vascular smooth muscle cells through targeting ROCK1. AB - The excessive proliferation and migration of vascular smooth muscle cells (VSMCs) are important steps in atherosclerosis. The present study aimed to investigate whether the high glucose-induced changes of VSCMs are mediated by miR-145 and the potential molecular mechanism involved. We found that loss of miR-145 accompanied with increased proliferation and migration was observed in cultured human VSMCs exposed to high glucose. Exogenous overexpression of miR-145 effectively suppressed the high glucose-induced excessive proliferation and migration of VSMCs. Furthermore, we identified ROCK1 as a downstream target gene product of miR-145, and ROCK1 partially rescues the effects of miR-145 on high glucose induced VSMC proliferation and migration. Taken together, our results suggested a protective role of miR-145 in high glucose-treated VSMCs by suppressing ROCK1, which might provide a therapeutic target for diabetic atherosclerosis. PMID- 29324317 TI - TINCR suppresses proliferation and invasion through regulating miR-544a/FBXW7 axis in lung cancer. AB - BACKGROUND: Long noncoding RNAs (LncRNAs) play critical roles in multiple biological processes implicated in the development and progression of cancers. Terminal differentiation-induced lncRNA (TINCR) has been demonstrated to be associated with the carcinogenesis of several cancers. However, little is known about the function and mechanism of TINCR in lung cancer. METHODS: qRT-PCR was performed to measure the expression of TINCR, miR-544a or FBXW7 mRNA in lung cancer tissues or cells. FBXW7 protein level was detected via western blot analysis. Cell Counting Kit-8 (CCK-8) and transwell invasion analysis were used to assess the proliferative and invasive ability of lung cancer cells. Bioinformatic softwares, luciferase reporter assay, and RNA immunoprecipitation (RIP) were employed to explore the relationship between TINCR, miR-544a and FBXW7. RESULTS: TINCR expression was downregulated while miR-544a expression was upregulated in lung cancer tissues and cells. TINCR overexpression suppressed proliferation and invasion in lung cancer cells. Moreover, TINCR was confirmed as a molecular sponge of miR-544a. We further validated that miR-544a facilitated proliferation and invasion, and miR-544a could reverse TINCR-mediated anti proliferation and anti-invasion effect in lung cancer cells. TINCR acted as a competing endogenous RNA (ceRNA) to sequester miR-544a from its target gene FBXW7. Finally, FBXW7 suppressed proliferation and invasion, and FBXW7 knockdown abolished the inhibition of TINCR on proliferation and invasion in lung cancer cells. CONCLUSION: TINCR suppressed proliferation and invasion through regulating miR-544a/FBXW7 axis in lung cancer, indicating that it might be a potential target for the therapy of lung cancer. PMID- 29324318 TI - A feasibility study of a multidimensional breastfeeding-support intervention in Ireland. AB - BACKGROUND: Breastfeeding is the optimum mode of infant feeding. Despite this, most global populations do not achieve the World Health Organisation's recommendation of exclusive breast milk for the first 6 months of life. Irish breastfeeding rates are among the lowest in Europe, necessitating a well-designed breastfeeding-support intervention. AIM: To evaluate the feasibility and acceptability of a multidimensional breastfeeding intervention in a rural and an urban maternity setting in Ireland. DESIGN: A feasibility study of a breastfeeding-support intervention. SETTING: Participants were recruited from The National Maternity Hospital (Dublin, urban) and Wexford General Hospital (Wexford, rural). Questionnaires were completed antenatally, at 6 weeks postpartum and at 3 months postpartum to assess acceptability of the intervention and determine breastfeeding status. PARTICIPANTS: Pregnant women were recruited in the 3rd trimester, alongside a support partner. INTERVENTION: The intervention consisted of an antenatal class (including the physiology and practical approaches to breastfeeding), a one-to-one breastfeeding consultation with a lactation consultant after birth, access to a breastfeeding helpline, online resources, and a postnatal breastfeeding support group which included a one-to one consultation with the lactation consultant. RESULTS: One hundred women from The National Maternity Hospital, Dublin and 27 women from Wexford General Hospital were recruited. The antenatal class was attended by 77 women in Dublin and 23 in Wexford; thus, 100 women participated in the intervention. Seventy-six women had a one-to-one postnatal consultation with a lactation consultant in Dublin and 23 in Wexford. Fifty and 45 women in Dublin, and 15 and 15 in Wexford responded to the 6-week and 3-month questionnaires, respectively. At 3 months postpartum, 70% of respondents from Dublin and 60% from Wexford were breastfeeding. Mothers perceived the one-to-one consultation with the lactation consultant during postnatal hospitalization as the most helpful part of the intervention. Inclusion of a support partner was universally viewed positively as a means to support the mother's decision to initiate and continue breastfeeding. CONCLUSION: This multidimensional intervention is well-accepted and feasible to carry out within an Irish cohort, in both urban and rural areas. Data from this feasibility study will be used to design a randomized controlled trial of a breastfeeding-support intervention. PMID- 29324319 TI - Dental age estimation employing CBCT scans enhanced with Mimics software: Comparison of two different approaches using pulp/tooth volumetric analysis. AB - The methods of dental age estimation and identification of unknown deceased individuals are evolving with the introduction of advanced innovative imaging technologies in forensic investigations. However, assessing small structures like root canal volumes can be challenging in spite of using highly advanced technology. The aim of the study was to investigate which amongst the two methods of volumetric analysis of maxillary central incisors displayed higher strength of correlation between chronological age and pulp/tooth volume ratio for Malaysian adults. Volumetric analysis of pulp cavity/tooth ratio was employed in Method 1 and pulp chamber/crown ratio (up to cemento-enamel junction) was analysed in Method 2. The images were acquired employing CBCT scans and enhanced by manipulating them with the Mimics software. These scans belonged to 56 males and 54 females and their ages ranged from 16 to 65 years. Pearson correlation and regression analysis indicated that both methods used for volumetric measurements had strong correlation between chronological age and pulp/tooth volume ratio. However, Method 2 gave higher coefficient of determination value (R2 = 0.78) when compared to Method 1 (R2 = 0.64). Moreover, manipulation in Method 2 was less time consuming and revealed higher inter-examiner reliability (0.982) as no manual intervention during 'multiple slice editing phase' of the software was required. In conclusion, this study showed that volumetric analysis of pulp cavity/tooth ratio is a valuable gender independent technique and the Method 2 regression equation should be recommended for dental age estimation. PMID- 29324320 TI - First survey of forensically important insects from human corpses in Shiraz, Iran. AB - The presence of insects on human cadavers has potential judicial value in medicolegal cases. This research emphasized the important role of insects in postmortem decomposition. It was conducted to investigate the composition and abundance of insects from human corpses during autopsies in legal medicine. It was implemented in the city of Shiraz, south Iran. Insects associated with human corpses were carefully collected and put into labelled vials. They were then identified using valid taxonomic keys. Fifteen outdoor (67%) and indoor discovered cadavers were examined. All but one was covered at the time of discovery. From these several species of entomofauna played important roles in the minimum postmortem interval (minPMI) estimate. Insects included the orders of Diptera and Coleoptera. Overall, 14 different species of arthropods were identified. Within Diptera, 2 families of Sarcophagidae and Calliphoridae were present in 73% of the cases with Calliphora vicina Robineau-Desvoidy and Chrysomya albiceps Wiedemann accounting for about half of the cases. The latter family members, Calliphoridae, were more frequently (52%) collected in autumn and winter. Only 4/15 outdoor cadavers had beetles. Four species of Coleopterans; namely Dermestes frischii Kugelann, Nitidula flavomaculata Rossi, Creophilus maxillosus Linnaeus and Saprinus chalcites Illiger; were recorded for the first time from 3 corpses in Iran. The presence and diversity of different insects on human corpses could contribute to the advancement of forensic entomology knowledge and the refined estimates of minPMI in medicolegal cases. PMID- 29324321 TI - Injuries sustained in falling fatalities in relation to different distances of falls. AB - BACKGROUND: Falling from a distance is an important issue worldwide, which happens in different ages, genders and circumstances. It is usually not considered a medicolegal case in many countries hence no autopsy is performed. This study focused on analyzing injuries sustained in victims of falling in relation to different distances of fall. METHODS: Retrospective study of 352 autopsy reports of falling victims brought to the forensic pathology department at Jordan University Hospital during the period from January 1990 to March 2016. RESULTS: Among 352 cases, 256 (72.7%) were males and 96 (27.3%) were females. 303 (86.1%) cases showed accidental fall, 31 (8.8%) were suicidal, 2 (0.6%) were homicidal and un-clarified death in 16 (4.5%). Time of death was directly proportionate with the distance of fall. Victims fell from distances less than 3 m were 123 (35%), most of them were children less than 7 years 50 (40.5%) and unemployed adults more than 45 years were 48 (39.1%). They showed multiple abrasions (62.6%), few contusions (64.2%) and absent laceration of the skin (84.5%). Victims fell from distances of 3-9 m were 123 (35%), most of them were male workers 56 (60.2%). They showed multiple abrasions (63.5%), few contusions (71%) and few lacerations of skin (50.5%). Victims fell from distances more than 9 m were 136 (38.6%), most of them were male workers 71 (52.2%) and female servants 23 (17%). They showed few abrasions (80.9%), multiple contusions (64.7%) and few lacerations of skin (48.5%). The number of fractured limbs increases obviously with distances more than 3 m. Skull vault fractures were found in all distances, while skull base fractures showed in distances of 3-9 m and more than 9 m. Head injury was the most common fatal injury in all distances. Chest injuries were prominent mainly in distances more than 3 m. While abdominal injuries were mainly prominent in distances more than 9 m. CONCLUSIONS: This study showed the effect of different distances of fall in causing different types of injuries in falling fatalities. Internal injuries were in a direct proportion with distances of fall, while external injuries showed a great importance in interpretation of the way of fall. PMID- 29324322 TI - Kinetic study of heavy metals Cu and Zn removal during sewage sludge ash calcination in air and N2 atmospheres. AB - Heavy metal control is essential during the thermochemical recovery of phosphorus (P) from sewage sludge ash (SSA). For medium volatile heavy metals, i.e. Cu and Zn, the effect of chlorine additive was complicated and more sensitive to temperature variation. So, in the in-depth study on the removal kinetics of Cu and Zn was necessary. Thus, the studies described in this paper considered the experiments and kinetic models of Cu and Zn removal in SSA through calcination under different atmospheres and temperatures. The results showed that within 15 min, the removal of Cu and Zn was more effective at the same temperature in air than in N2. The result is consistent with kinetic analysis: Reaction activation energy of both Cu and Zn in an air atmosphere is lower than in N2. In addition, the reaction orders, energy and frequency factors of Cu and Zn removal reaction during SSA calcination at high temperature with air and N2 atmosphere were calculated. PMID- 29324323 TI - Multidisciplinary characterization of U(VI) sequestration by Acidovorax facilis for bioremediation purposes. AB - The contamination of the environment by U may affect plant life and consequently may have an impact on animal and human health. The present work describes U(VI) sequestration by Acidovorax facilis using a multidisciplinary approach combining wet chemistry, transmission electron microscopy, and spectroscopy methods (e.g. cryo-time resolved laser-induced fluorescence spectroscopy, extended X-ray absorption fine structure spectroscopy, and in-situ attenuated total reflection Fourier transform infrared spectroscopy). This bacterial strain is widely distributed in nature including U-contaminated sites. In kinetic batch experiments cells of A. facilis were contacted for 5 min to 48 h with 0.1 mM U(VI). The results show that the local coordination of U species associated with the cells depends upon time contact. U is bound mainly to phosphate groups of lipopolysaccharide (LPS) at the outer membrane within the first hour. And, that both, phosphoryl and carboxyl functionality groups of LPS and peptidoglycan of A. facilis cells may effectuate the removal of high U amounts from solution at 24-48 h of incubation. It is clearly demonstrated that A. facilis may play an important role in predicting the transport behaviour of U in the environment and that the results will contribute to the improvement of bioremediation methods of U contaminated sites. PMID- 29324324 TI - Investigation of the factors that influence lead accumulation onto polyethylene: Implication for potable water plumbing pipes. AB - The influence of polymer aging, water pH, and aqueous Pb concentration on Pb deposition onto low density polyethylene (LDPE) was investigated. LDPE pellets were aged by ozonation at 85 degrees C. ATR-FTIR and X-ray photoelectron spectroscopy (XPS) analysis of aged LDPE surfaces showed that a variety of polar functional groups (>CO<, >CO, >COO) were formed during aging. These functional groups likely provided better nucleation sites for Pb(OH)2 deposition compared to new LDPE, which did not have these oxygen-containing functional groups. The type and amount of Pb species present on these surfaces were evaluated through XPS. The influence of exposure duration on Pb deposition onto LDPE was modeled using the pseudo-first-order equation. Distribution ratios of 251.5 for aged LDPE and 69.3 for new LDPE showed that Pb precipitates had greater affinity for the surface of aged LDPE compared to new LDPE. Aged LDPE had less Pb surface loading at pH 11 compared to loading at pH 7.8. Pb surface loading for aged LDPE changed linearly with aging duration (from 0.5-7.5 h). Pb surface loading on both new and aged LDPE increased linearly with increasing Pb initial concentration. Greater Pb precipitation rates were found for aged LDPE compared to new LDPE at both tested pH values. PMID- 29324325 TI - Adsorption and separation of n/iso-pentane on zeolites: A GCMC study. AB - Separation of branched chain hydrocarbons and straight chain hydrocarbons is very important in the isomerization process. Grand canonical ensemble Monte Carlo simulations were used to investigate the adsorption and separation of iso-pentane and n-pentane in four types of zeolites: MWW, BOG, MFI, and LTA. The computation of the pure components indicates that the adsorption capacity is affected by physical properties of zeolite, like pore size and structures, and isosteric heat. In BOG, MFI and LTA, the amount of adsorption of n-pentane is higher than iso-pentane, while the phenomenon is contrary in MWW. For a given zeolite, a stronger adsorption heat corresponds to a higher loading. In the binary mixture simulations, the separation capacity of n-and iso-pentane increases with the elevated pressure and the increasing iso-pentane composition. The adsorption mechanism and competition process have been examined. Preferential adsorption contributions prevail at low pressure, however, the size effect becomes important with the increasing pressure, and the relatively smaller n-pentane gradually competes successfully in binary adsorption. Among these zeolites, MFI has the best separation performance due to its high shape selectivity. This work helps to better understand the adsorption and separation performance of n- and iso-pentane in different zeolites and explain the relationship between zeolite structures and adsorption performance. PMID- 29324326 TI - Studying the recognition mechanism of TcaR and ssDNA using molecular dynamic simulations. AB - The transcription regulator teicoplanin-associate locus regulator (TcaR) plays a vital role in interfering with ssDNA replication and resisting ssDNA phage invasion. Although recent studies demonstrated that TcaR had strong interaction with ssDNA, the dynamics and interaction mechanism of dimeric TcaR bound to ssDNA have not been rationalized at the atomic level. In our study, MD simulations combined with MM-GB/SA calculations were employed to study recognition mechanism between TcaR and ssDNA. The results illuminate that electrostatic interaction is the main driving force for the binding process. We put forward that six anchoring residues (Arg70, Arg71, Ser188, Gln191, Arg221 and Arg222) play a vital role in stabilizing the ssDNA by forming strong hydrogen bond and salt bridge interactions. TcaR undergoes the asymmetric conformational changes at the wHTH domain upon binding to ssDNA. This may be attributed to the changing of electrostatic potential, enhanced contacts and salt bridge interaction. The present study provides new insights into the recognition mechanism of TcaR bound to ssDNA, which could contribute to understanding about the multiple TcaR functions in staphylococci enrich our understanding of MarR family. PMID- 29324327 TI - Elucidating the interfaces involved in CARD-CARD interactions mediated by NLRP1 and Caspase-1 using molecular dynamics simulation. AB - Inflammasomes are the multi-protein caspase-activating complexes mainly assembled by the sensor proteins (NLRs/ALRs), adaptor molecule (ASC) and effector molecule pro-caspase-1 for the production and release of proinflammatory cytokines, IL 1beta and IL-18. NLRP1 is the first NLR known to assemble the multi-protein complex. Unlike NLRP3, NLRP1 has an additional effector binding domain (CARD) at the carboxyl-terminal, which is reported to interact with pro-caspase-1 (precluding the recruitment of ASC) for the transmission of danger signals. So far no direct interaction has been observed between the NLRP1 and CASP1 at the structural level. In this study, an attempt has been made to elucidate the possible mode of interaction(s) between CASP1 and NLRP1 CARDs using structural bioinformatics approaches. The results revealed that the type-Ia patch of CASP1CARD (R10, K11, and R55) is probably the favorable interface for 1:1 interaction. Moreover, the interactions mediated in the type-II and/(or) type-III interfaces of counter CARDs can also be not ruled out altogether. Overall, the findings of this study can be beneficial in understanding the underlying molecular mechanism(s) associated with NLRP1-mediated inflammasome. PMID- 29324328 TI - Long-term outcomes after percutaneous renal cryoablation performed with adjunctive techniques. AB - OBJECTIVE: To review the technical success of image-guided percutaneous cryoablation of renal masses in difficult anatomic locations using adjunctive techniques to displace critical structures away from the ablation zone, while also reporting longer-term outcomes within this patient population. METHODS: An IRB approved, retrospective analysis of 92 renal masses treated with percutaneous cryoablation revealed 15 cases utilizing adjunctive techniques. Tumor size and distance to adjacent organ before and after adjunctive technique and long-term outcomes were evaluated. RESULTS: The adjunctive techniques used were hydrodissection (n=15) and angioplasty balloon interposition (n=1). Before and after adjunctive technique, median tumor proximity to closest organ was 4mm and 26mm, respectively. All cases had appropriate ablation zones and protection of adjacent critical structures. There is no evidence of recurrence or complication on follow-up (median 51months). CONCLUSIONS: Adjunctive techniques to ablate renal masses in difficult locations provide technical success, safety, and favorable long-term outcomes. PMID- 29324329 TI - Cystic mediastinal masses and the role of MRI. AB - While some cystic masses can be definitively diagnosed on CT, others remain indeterminate. Because of its intrinsic superior soft tissue resolution, MR is an important tool in the evaluation of select mediastinal masses that are incompletely characterized on CT. This review describes how non-vascular MR provides greater diagnostic precision in the evaluation of indeterminate cystic mediastinal masses on CT. It also emphasizes key MR pulse sequences for optimal evaluation of problematic mediastinal masses. PMID- 29324330 TI - Probing the mechanistic principles of bacterial cell division with super resolution microscopy. AB - Bacterial cell division takes place almost entirely below the diffraction limit of light microscopy, making super-resolution microscopy ideally suited to interrogating this process. I review how super-resolution microscopy has advanced our understanding of bacterial cell division. I discuss the mechanistic implications of these findings, propose physical models for cell division compatible with recent data, and discuss key outstanding questions and future research directions. PMID- 29324331 TI - Influence of pre-analytical time and temperature conditions on serum thromboxane B2 levels. PMID- 29324332 TI - Impaired plasminogen binding in patients with venous thromboembolism: Association with protein carbonylation. AB - INTRODUCTION: Venous thromboembolism (VTE) is associated with hypofibrinolysis. Its mechanisms are poorly understood. We investigated plasminogen-fibrin interaction and its association with fibrinolytic capacity and protein oxidation/carbonylation in VTE patients. MATERIALS AND METHODS: Plasma-purified plasminogen conversion to plasmin and surface plasmon resonance employed for plasminogen-fibrin interactions were individually evaluated in all healthy controls and non-anticoagulated patients following VTE, 10-23months since the event. We also assessed plasma fibrin clot permeability (Ks), clot lysis time (LT), activators and inhibitors of fibrinolysis together with oxidation/carbonylation markers. RESULTS: VTE patients had impaired plasminogen binding to fibrin (apparent Kd, +290%, p=0.002), reduced rate of plasmin generation (-4.7%, p=0.001), and longer LT (+18.6%, p<0.001) compared with controls. Fibrinogen and Ks were similar in both groups. Apparent Kd correlated with LT (r=0.43, p=0.037), tissue plasminogen activator-plasminogen activator inhibitor 1 (tPA-PAI-1) complexes (r=0.63, p=0.012), and active PAI-1 (r=0.49, p=0.03). Compared with controls, VTE patients had higher thiobarbituric acid reactive substances (TBARS), total protein carbonyl content (PC), and lower total antioxidant capacity (all p<0.001), that all were associated with LT (r=0.61, r=0.56, and r=-0.47, respectively, all p<0.05). Impaired plasminogen binding to fibrin reflected by apparent Kd positively correlated with TBARS (r=0.48, p=0.032) and PC (r=0.54, p=0.013) in the whole group. CONCLUSIONS: Plasminogen fibrin interactions are altered in young and middle-aged VTE patients, without known thrombophilias, except increased factor VIII. The mechanisms underlying these phenomena remain to be established. PMID- 29324333 TI - Management of direct oral anticoagulant associated bleeding: Results of a multinational survey. PMID- 29324334 TI - Rivaroxaban versus warfarin for the prevention of post-thrombotic syndrome. AB - INTRODUCTION: Despite treatment of acute deep vein thrombosis (DVT) with low molecular weight heparin and warfarin, up to 50% of patients develop post thrombotic syndrome (PTS). Our aims were to assess whether treatment of DVT with rivaroxaban would reduce the rate of subsequent PTS and improve health-related quality of life (HRQoL) as compared to conventional anticoagulation with low molecular weight heparin (LMWH)/warfarin. MATERIALS AND METHODS: Consecutive patients with an objectively confirmed DVT diagnosed between 2011 and 2014 and treated with either rivaroxaban or warfarin were included in this study 24 (+/-6) months after DVT. PTS was assessed using the Patient Reported Villalta scale. HRQoL was assessed using the EQ-5D-3L and VEINES-QOL/Sym questionnaires. RESULTS: Total 309 patients were included, 161 (52%) treated with rivaroxaban and 148 (48%) with warfarin. Rivaroxaban-treated patients had a lower rate of PTS (45%: 95% confidence interval [CI] 37 to 52) compared to those treated with warfarin (59%: 95% CI 51 to 66, absolute risk difference 14%: 95% CI 3 to 25, odds ratio (OR) 0.6, P = .01). The adjusted OR for development of PTS was 0.5 (95% CI: 0.3 to 0.8, P = .01) in patients treated with rivaroxaban. HRQoL was significantly better in the rivaroxaban-treated patients. HRQoL measured by EQ-VAS (P = .002) and VEINES-QOL/Sym (P = .005/P = .003) remained significantly better after adjustment. CONCLUSIONS: Patients treated with rivaroxaban had lower rate of PTS and better HRQoL after DVT compared to patients treated with warfarin. However, these results should be interpreted with caution due to the limitation imposed by study design. PMID- 29324335 TI - Efficient synthesis and first regioselective C-6 direct arylation of imidazo[2,1 c][1,2,4]triazine scaffold and their evaluation in H2O2-induced oxidative stress. AB - Oxidative stress and apoptosis are both associated with various acute and chronic disorders. Thus, the aim of the present study is to synthesize imidazo[2,1 c][1,2,4]triazines derivatives and to evaluate their effects in H2O2-induced oxidative stress in human neuroblastoma cell line (SH-SY5Y cells). The effects of the compounds on cell viability were measured by MTT assay and the changes in stress and apoptosis-related proteins were investigated by PathScan(r) Stress and Apoptosis Signaling Antibody Array kit and Western Blot technique. In particular, four compounds were found to protect SH-SY5Y cells from H2O2-induced toxicity by increasing Bcl-2/Bax ratio, regulating PI3-K/Akt cascade and inhibiting the ERK pathway. PMID- 29324336 TI - New 1,5 and 2,5-disubstituted tetrazoles-dependent activity towards surface barrier of Candida albicans. AB - A series of novel tetrazole derivatives was synthetized using N-alkylation or Michael-type addition reactions, and screened for their fungistatic potential against Candida albicans (the lack of endpoint = 100%). Among them, the selected compounds 2d, 4b, and 6a differing in substituents at the tetrazole ring were non toxic to Galleria mellonella larvae in vivo and exerted slight toxicity against Caco-2 in vitro (CC50 at 256 MUg/mL). An antagonistic effect of tetrazole derivatives 2d, 4b, and 6a respectively in combination with Fluconazole was shown using the checker board and colorimetric methods (fractional inhibitory concentration indexes FICIs >1). The most active 2d and 6a displayed an inverse relation between MICs in the presence of exogenous ergosterol, the effect was opposite to Itraconazole and Amphotericin B. The differences between 6a's and 2d's action mode were noted. Combining both flow cytometry and fluorescence image analyses respectively showed the complexity of planktonic and biofilm cell demise mode under the tetrazole derivatives tested. The following evidences for 6a's interaction with fungal membrane were noted: necrosis-like programmed cell death (97.03 +/- 0.88), DNA denaturation (no laddering), mitochondrial damage (XTT assay), reduced adhesion to human epithelium (>50% at 0.0313 MUg/mL, p <= .05), irregular deposit of chitin, and attenuated morphogenesis in mature biofilm. The treatment with 6a reduced pathogenicity of C. albicans during infection in G. mellonella. Contrariwise, 2d enhancing fungal adhesion displayed mechanism targeted to the cell wall (due to the presence of 3-chloropropyl clubbed with aryltetrazole) in the presence of osmotic protector. Under 2d, the accidental cell death (88.60% +/- 4.81) was observed. In conclusion, all tetrazole derivatives were obtained in satisfactory yields (60-95%) using efficient, simple and not expensive methods. Fungistatic and slightly anticancer tetrazole derivatives with the novel action mode can circumvent an appearance of antifungal resistant strains. These results indicate that they are worthy of further studies. PMID- 29324337 TI - Amino acid conjugated antimicrobial drugs: Synthesis, lipophilicity- activity relationship, antibacterial and urease inhibition activity. AB - Present work describes the in vitro antibacterial evaluation of some new amino acid conjugated antimicrobial drugs. Structural modification was attempted on the three existing antimicrobial pharmaceuticals namely trimethoprim, metronidazole, isoniazid. Twenty one compounds from seven series of conjugates of these drugs were synthesized by coupling with some selected Boc-protected amino acids. The effect of structural features and lipophilicity on the antibacterial activity was investigated. The synthesized compounds were evaluated against five standard American type culture collection (ATCC) i.e. Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Pseudomonas aeruginosa and Salmonella typhi strains of bacteria. Our results identified a close relationship between the lipophilicity and the activity. Triazine skeleton proved beneficial for the increase in hydrophobicity and potency. Compounds with greater hydrophobicity have shown excellent activities against Gram-negative strains of bacteria than Gram-positive. 4-amino unsubstituted trimethoprim-triazine derivative 7b have shown superior activity with MIC = 3.4 MUM (2 MUg/mL) for S. aureus and 1.1 MUM (0.66 MUg/mL) for E. coli. The synthesized compounds were also evaluated for their urease inhibition study. Microbial urease from Bacillus pasteurii was chosen for this study. Triazine derivative 7a showed excellent inhibition with IC50 = 6.23 +/- 0.09 MUM. Docking studies on the crystal structure of B. pasteurii urease (PDB ID 4UBP) were carried out. PMID- 29324338 TI - Identification of novel 2-benzoxazolinone derivatives with specific inhibitory activity against the HIV-1 nucleocapsid protein. AB - In this report, we present a new benzoxazole derivative endowed with inhibitory activity against the HIV-1 nucleocapsid protein (NC). NC is a 55-residue basic protein with nucleic acid chaperone properties, which has emerged as a novel and potential pharmacological target against HIV-1. In the pursuit of novel NC inhibitor chemotypes, we performed virtual screening and in vitro biological evaluation of a large library of chemical entities. We found that compounds sharing a benzoxazolinone moiety displayed putative inhibitory properties, which we further investigated by considering a series of chemical analogues. This approach provided valuable information on the structure-activity relationships of these compounds and, in the process, demonstrated that their anti-NC activity could be finely tuned by the addition of specific substituents to the initial benzoxazolinone scaffold. This study represents the starting point for the possible development of a new class of antiretroviral agents targeting the HIV-1 NC protein. PMID- 29324339 TI - Novel donepezil-like N-benzylpyridinium salt derivatives as AChE inhibitors and their corresponding dihydropyridine "bio-oxidizable" prodrugs: Synthesis, biological evaluation and structure-activity relationship. AB - As an extension of our previous work on donepezil-based "bio-oxidizable" prodrug approach, two new classes of N-benzylpyridinium donepezil analogues in tetralone B2 and acetophenone B3 series and a new set of indanone derivatives B1 were investigated along with the corresponding dihydropyridine prodrugs A1-3. A total of fifty one N-benzylpyridinium quaternary donepezil analogues B1-3 and twenty two prodrugs A1-3 were synthesized and evaluated for their inhibitory activities against hAChE and eqBuChE. While most prodrugs A1-3 were demonstrated to be inactive against AChE (IC50 > 10 MUM), a large number of the corresponding N benzylpyridinium salt B1-3 exhibited appealing three-to-one-digit nanomolar hAChE inhibitory activities and even reaching subnanomolar activity (IC50 = 0.36 nM). In addition, in silico docking studies were conducted for several compounds to explain the more relevant in vitro results. Lastly, the influence of the two stereogenic centers in prodrugs A was also evaluated, highlighting not only marked differences in residual AChE inhibitory activity of the four separated isomers of prodrug 23h (IC50 ranging from 173 nM to 10 MUM) but also significant variations of the oxidation rate between two separated diastereoisomers of prodrug 24a. This work provides useful information in the search of a preclinical candidate to conduct further development of this attractive "bio-oxidizable" prodrug strategy. PMID- 29324340 TI - Antimalarial naphthoquinones. Synthesis via click chemistry, in vitro activity, docking to PfDHODH and SAR of lapachol-based compounds. AB - Lapachol is an abundant prenyl naphthoquinone occurring in Brazilian Bignoniaceae that was clinically used, in former times, as an antimalarial drug, despite its moderate effect. Aiming to search for potentially better antimalarials, a series of 1,2,3-triazole derivatives was synthesized by chemical modification of lapachol. Alkylation of the hydroxyl group gave its propargyl ether which, via copper-catalyzed cycloaddition (CuAAC) click chemistry with different organic azides, afforded 17 naphthoquinonolyl triazole derivatives. All the synthetic compounds were evaluated for their in vitro activity against chloroquine resistant Plasmodium falciparum (W2) and for cytotoxicity to HepG2 cells. Compounds containing the naphthoquinolyl triazole moieties showed higher antimalarial activity than lapachol (IC50 123.5 MUM) and selectivity index (SI) values in the range of 4.5-197.7. Molecular docking simulations of lapachol, atovaquone and all the newly synthesized compounds were carried out for interactions with PfDHODH, a mitochondrial enzyme of the parasite respiratory chain that is essential for de novo pyrimidine biosynthesis. Docking of the naphthoquinonolyl triazole derivatives to PfDHODH yielded scores between -9.375 and -14.55 units, compared to -9.137 for lapachol and -12.95 for atovaquone and disclosed the derivative 17 as a lead compound. Therefore, the study results show the enhancement of DHODH binding affinity correlated with improvement of SI values and in vitro activities of the lapachol derivatives. PMID- 29324341 TI - Biotin conjugated organic molecules and proteins for cancer therapy: A review. AB - The main transporter for biotin is sodium dependent multivitamin transporter (SMVT), which is overexpressed in various aggressive cancer cell lines such as ovarian (OV 2008, ID8), leukemia (L1210FR), mastocytoma (P815), colon (Colo-26), breast (4T1, JC, MMT06056), renal (RENCA, RD0995), and lung (M109) cancer cell lines. Furthermore, its overexpression was found higher to that of folate receptor. Therefore, biotin demand in the rapidly growing tumors is higher than normal tissues. Several biotin conjugated organic molecules has been reported here for selective delivery of the drug in cancer cell. Biotin conjugated molecules are showing higher fold of cytotoxicity in biotin positive cancer cell lines than the normal cell. Nanoparticles and polymer surface modified drugs and biotin mediated cancer theranostic strategy was highlighted in this review. The cytotoxicity and selectivity of the drug in cancer cells has enhanced after biotin conjugation. PMID- 29324342 TI - Peramivir conjugates as orally available agents against influenza H275Y mutant. AB - Peramivir is an efficacious neuraminidase (NA) inhibitor for treatment of influenza by intravenous administration. However, the efficacy of peramivir toward the H275Y mutant is appreciably reduced. To address this drawback, conjugation of peramivir with caffeic acid is devised in this study to enhance the binding affinity with neuraminidases. The C2-OH group of peramivir is elaborated to link with caffeate derivatives, giving the desired conjugates 8 and 9 that possess potent NA inhibitory activity against both wild-type and H275Y viruses with the IC50 values in nanomolar range. The molecular modeling reveals that the caffeate moiety of conjugate 9 prefers to reside in the 295-cavity of H275Y neuraminidase, thus providing additional hydrogen bonds and hydrophobic interactions to compensate the reduced binding affinity of the peramivir moiety due to Glu-276 dislocation in H275Y mutant. In comparison with peramivir, the lipophilicity of conjugates 8 and 9 also increases by incorporation of the caffeate moiety. Thus, conjugates 8 and 9 offer better effect to protect MDCK cells from infection of H275Y virus with low EC50 value (~17 nM). Administration of conjugates 8 or 9 by oral gavage is effective in treatment of mice that are infected by lethal dose of wild-type or H275Y influenza viruses. Considering drug metabolism, since the ester linkage in conjugate 8 is susceptible to hydrolysis in plasma, conjugate 9 with robust amide linkage may be a better candidate for development into orally available anti-influenza drug that is also active to mutant viruses. PMID- 29324343 TI - Substituted tetrahydroisoquinolines: synthesis, characterization, antitumor activity and other biological properties. AB - This work deals with the molecular design, synthesis and biological activity of a series of tetrahydro[1,4]dioxanisoquinolines and dimethoxyisoquinoline analogues. This study describes the synthesis strategy of these potential antitumor compounds, their multi-step synthesis and their optimization. A series of tetrahydroisoquinolines was synthesized and their cytotoxicity evaluated. Some of these tetrahydroisoquinolines showed promising KRas inhibition, antiangiogenesis activity and antiosteoporosis properties. Molecular modeling studies showed that compound 12 bind in the p1 pocket of the KRas protein making interactions with the hydrophobic residues Leu56, Tyr64, Tyr71 and Thr74 and hydrogen bonds with residues Glu37 and Asp38. PMID- 29324344 TI - Anti-biofilm effect of novel thiazole acid analogs against Pseudomonas aeruginosa through IQS pathways. AB - IQS has been proven to be a new quorum sensing (QS) system against bacterial biofilm formation, which is activated in the common phosphate-limiting environment of infected tissues taking over the central las system. Up to now, numerous biofilm inhibitors which function by affecting traditional QS system have been reported. However, no compound has been reported to exert anti-biofilm activity through IQS system. Herein, various novel IQS derivatives were synthesized by the reaction of thiazole-4-carboxylic acid with different linear alcohols (R-OH) or amines (R-NH2). IQS derivatives with four carbon chain length of R group were found to present the best biofilm inhibition activity. Compound B 11 as the model molecule was observed to inhibit biofilm formation only under phosphate-limiting condition, and increase in B-11 concentration significantly reduced the expression of rhlA-gfp and pqsA-gfp, but lasB-gfp. Moreover, B-11 reduced production of virulence factors of rhamnolipid and pyocyanin under phosphate limitation. These observations indicated that the synthesized compounds possessed the anti-biofilm activity through IQS pathways rather than traditional QS pathways, which pave a path for future molecular design against bacterial biofilm formation. PMID- 29324345 TI - Synthesis and biological evaluation of a series of multi-target N-substituted cyclic imide derivatives with potential antipsychotic effect. AB - In the present study, a series of multi-target N-substituted cyclic imide derivatives which possessed potent dopamine D2, serotonin 5-HT1A and 5-HT2A receptors properties were synthesized and evaluated as potential antipsychotics. Among these compounds, (3aR,4R,7S,7aS)-2-(4-(4-(benzo[b]thiophen-4-yl)piperazin-1 yl)butyl)-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione hydrochloride (3d) held a promising pharmacological profile. 3d not only showed potent and balanced in vitro activities on D2/5-HT1A/5-HT2A receptors, but also endowed with low to moderate activities on 5-HT2C, H1, alpha1A, M3 receptors and hERG channel, suggesting a low liability to induce side effects such as weight gain, orthostatic hypotension and QT prolongation. In animal behavioral studies, 3d reduced phencyclidine-induced hyperlocomotion with a high threshold for catalepsy induction. Compound 3d was selected as a potential antipsychotic candidate for further development. PMID- 29324346 TI - Synthesis and biological characterization of novel rose bengal derivatives with improved amphiphilicity for sono-photodynamic therapy. AB - Sono-Photodynamic therapy (SPDT) utilizing ultrasound and light has been demonstrated that this novel approach can lower dosage resulting in reduction of the potential side effects caused by sensitizers. Recently, a new formulation of rose bengal (RB) as an intralesional injection has completed clinical trials phase II for PDT treatment of melanoma cancer. However, the inherent unfavorable pharmacological properties of RB hindered its extensive clinical development. With the aim to identify new RB derivatives (RBDs) with enhanced photodynamic and sonodynamic anticancer efficiency, a series of amphiphilic RBDs have been designed, synthesized and biological characterized. Among them, RBD4 significantly improved cellular uptake and enhanced intracellular ROS generation efficiency upon light and ultrasound irradiation, resulting in dramatically improved anticancer potency. Notably, RBD4 has a relative potency similar to sinoporphyrin sodium (DVDMS), indicating its further potential application for SPDT. PMID- 29324347 TI - Design, synthesis and biological evaluation of 7H-pyrrolo[2,3-d]pyrimidin-4-amine derivatives as selective Btk inhibitors with improved pharmacokinetic properties for the treatment of rheumatoid arthritis. AB - Bruton's tyrosine kinase (Btk) is a Tec family kinase with a well-defined role in the B cell receptor (BCR) and Fcgamma receptor (FcR) signaling pathways, which makes it a uniquely attractive target for the treatment of autoimmune diseases, such as rheumatoid arthritis (RA). We reported a series of compounds bearing 7H pyrrolo [2,3-d]pyrimidin-4-amine scaffold that potently inhibited Btk in vitro. Analysis of the structure-activity relationships (SAR) and drug-like profiles led to the discovery of the optimal compound B16. B16 preferentially inhibited Btk (IC50 = 21.70 +/- 0.82 nM) over closely related kinases with moderate selectivity. Cell-based tests also confirmed that B16 significantly inhibited Btk Y223 auto-phosphorylation and PLCgamma2 Y1217 phosphorylation. MTT revealed that B16 displayed weak suppression against normal LO2, HEK293 and THP-1 cell lines with IC50 values over 30 MUM. Moreover, B16 showed very weak potential to block the hERG channel (IC50 = 11.10 MUM) in comparison to ibrutinib (IC50 = 0.97 MUM). Owing to its favorable physicochemical properties (ClogP = 2.53, aqueous solubility ~ 0.1 mg/mL), pharmacokinetic profiles (F = 49.15%, t1/2 = 7.02 h) and reasonable CYP450 profile, B16 exhibited potent anti-arthritis activity and similar efficacy to ibrutinib in reducing paw thickness in CIA mice. In conclusion, B16 is a potent, selective and durable inhibitor of Btk and has the potential to a safe and efficacious treatment for arthritis. PMID- 29324348 TI - Dependence among randomly acquired characteristics on shoeprints and their features. AB - Randomly acquired characteristics (RACs), also known as accidental marks, are random markings on a shoe sole, such as scratches or holes, that are used by forensic experts to compare a suspect's shoe with a print found at the crime scene. This article investigates the relationships among three features of a RAC: its location, shape type and orientation. If these features, as well as the RACs, are independent of each other, a simple probabilistic calculation could be used to evaluate the rarity of a RAC and hence the evidential value of the shoe and print comparison, whereas a correlation among the features would complicate the analysis. Using a data set of about 380 shoes, it is found that RACs and their features are not independent, and moreover, are not independent of the shoe sole pattern. It is argued that some of the dependencies found are caused by the elements of the sole. The results have important implications for the way forensic experts should evaluate the degree of rarity of a combination of RACs. PMID- 29324349 TI - Organic staining on bone from exposure to wood and other plant materials. AB - Determining the depositional environment and the postmortem alterations to a set of remains are necessary aspects of a forensic investigation to explain the circumstances surrounding the death of an individual. The present study examines organic staining as a method for reconstructing the depositional environment of skeletal remains and the taphonomic agents with which they came into contact. Organic staining results largely from tannins leaching from plant materials and therefore can be seen on bone deposited in wooden coffin environments or on terrestrial surfaces. The present study examines the hypothesis that the degree of staining observed on skeletal elements would increase as the length of exposure to the organic matter increased and that different plant materials and environments would leave different patterns or colorations of staining. The sample consisted of 165 pig (Sus scrofa) femora divided into four groups exposed to differing experimental conditions, including burial in direct contact with soil or burial in a simulated coffin environment, immersion in water with wood samples, and surface deposition with plant matter contact. The bones were removed once a month from their experimental environments and the level of staining was recorded qualitatively using the Munsell Soil Color Chart. In all of the experimental environments, staining was present after two months of exposure, and the color darkened across the bone surface with each episode of data collection. The results from the present study indicate that staining can manifest on bone within a relatively short time frame once skeletonization occurs and a variety of colorations or patterns of staining can manifest based on the plant material. The present research also demonstrates the potential of organic staining to aid in estimations of the postmortem interval as well as a depositional environmental reconstruction through plant species identification. PMID- 29324350 TI - Formation of phosphatidylethanol from endogenous phosphatidylcholines in animal tissues from pig, calf, and goat. AB - In the presence of alcohol, phosphatidylcholine (PC) is transformed to the direct alcohol biomarker phosphatidylethanol (PEth). This reaction is catalyzed by the enzyme phospholipase D (PLD) and dependent on substrate availability. As recent methods have solely focused on the determination of PEth, information about the PC composition was generally missing. To address this issue and monitor PC (16:0/18:1 and 16:0/18:2) and PEth (16:0/18:1 and 16:0/18:2) simultaneously, a reversed phase LC-MS/MS method based on a C8 core-shell column, coupled to a Sciex 5500 QTrap instrument was developed. By application of polarity switching, at first, PC was measured in ESI positive SRM mode, while PEth was determined at a later stage in ESI negative SRM mode. The PEth method was validated for human blood samples to show its robustness and subsequently applied for the investigation of systematic in vitro PEth formation in animal tissue samples (brain, kidney, liver, and blood) from a pig, a calf, and a goat. Homogenized tissue was incubated at 37 degrees C with varying ethanol concentrations from 1 to 7g/kg (determined by HS-GC-FID) for 5h, whereby a sample was taken every 30min. For all tissue samples, an increase in PEth was measurable. PEth concentrations formed in blood remained below the LLOQ, in agreement with literature. Data analysis of Michaelis-Menten kinetics and PC within the tissue provided a detailed insight about PEth formation, as the occurrence of PEth species can be linked to the observed PC composition. The results of this study show that PEth formation rates vary from tissue to tissue and among different species. Furthermore, new recommendations for PEth analysis are presented. PMID- 29324351 TI - Corrigendum to "Differences in combinations and concentrations of drugs of abuse in fatal intoxication and driving under the influence cases" [Forensic Sci. Int. 281 (2017) 127-133]. PMID- 29324352 TI - Administration of exercise-conditioned plasma alters muscle catalase kinetics in rat: An argument for in vivo-like Km instead of in vitro-like Vmax. AB - Maximal velocity (Vmax) is a well established biomarker for the assessment of tissue redox status. There is scarce evidence, though, that it does not probably reflect sufficiently in vivo tissue redox profile. Instead, the Michaelis constant (Km) could more adequately image tissue oxidative stress and, thus, be a more physiologically relevant redox biomarker. Therefore, the aim of the present study was to side-by-side compare Vmax and Km of an antioxidant enzyme after implementing an in vivo set up that induces alterations in tissue redox status. Forty rats were divided into two groups including rats injected with blood plasma originating from rats that had previously swam until exhaustion and rats injected with blood plasma originating from sedentary rats. Tail-vein injections were performed daily for 21 days. Catalase Vmax and Km measured in gastrocnemius muscle were increased after administration of the exercise-conditioned plasma, denoting enhancement of the enzyme activity but impairment of its affinity for the substrate, respectively. These alterations are potential adaptations stimulated by the administered plasma pointing out that blood is an active fluid capable of regulating tissue homeostasis. Our findings suggest that Km adequately reflects in vivo modifications of skeletal muscle catalase and seems to surpass Vmax regarding its physiological relevance and biological interpretation. In conclusion, Km can be regarded as an in vivo-like biomarker that satisfactorily images the intracellular environment, as compared to Vmax that could be aptly parallelized with a biomarker that describes tissue oxidative stress in an in vitro manner. PMID- 29324353 TI - Dietary habits during the 2 months following the Chernobyl accident and differentiated thyroid cancer risk in a population-based case-control study. AB - BACKGROUND: The Chernobyl nuclear power plant accident occurred in Ukraine on April 26th 1986. In France, the radioactive fallout and thyroid radiation doses were much lower than in highly contaminated areas. However, a number of risk projections have suggested that a small excess in differentiated thyroid cancer (DTC) might occur in eastern France due to this low-level fallout. In order to investigate this potential impact, a case-control study on DTC risk factors was started in 2005, focusing on cases who were less than 15 years old at the time of the Chernobyl accident. Here, we aim to evaluate the relationship between some specific reports of potentially contaminated food between April and June 1986 - in particular fresh dairy products and leafy vegetables - and DTC risk. METHODS: After excluding subjects who were not born before the Chernobyl accident, the study included 747 cases of DTC matched with 815 controls. Odds ratios were calculated using conditional logistic regression models and were reported for all participants, for women only, for papillary cancer only, and excluding microcarcinomas. RESULTS: The DTC risk was slightly higher for participants who had consumed locally produced leafy vegetables. However, this association was not stronger in the more contaminated areas than in the others. Conversely, the reported consumption of fresh dairy products was not statistically associated with DTC risk. CONCLUSION: Because the increase in DTC risk associated with a higher consumption of locally produced vegetables was not more important in the most contaminated areas, our study lacked power to provide evidence for a strong association between consumption of potentially contaminated food and DTC risk. PMID- 29324354 TI - An in-depth prognostic analysis of baseline blood lipids in predicting postoperative colorectal cancer mortality: The FIESTA study. AB - BACKGROUND: Dyslipidaemia is key to colorectal carcinogenesis, and the prediction of baseline triglycerides (TG), total cholesterol (TC), high- and low-density lipoprotein cholesterol (HDLC and LDLC) for postsurgical colorectal cancer mortality has not been researched. OBJECTIVES: We attempted to re-analyse the FIESTA database to assess the prognostic value of three informative lipid derivatives - AI (atherogenic index: (TC - HDLC)/HDLC), THR (TG/HDLC) and LHR (LDLC/HDLC) in predicting colorectal cancer mortality. METHODS: Based on the FIESTA database, 1318 patients received radical resection from 2000 to 2008, with the latest follow-up completed in December 2015. Median follow-up time was 58.6 months. RESULTS: Total 1318 patients were randomly evenly divided into the derivation and validation groups. Overall, baseline AI and LHR were associated with the significantly increased risk of colorectal cancer mortality in both derivation (hazard ratio (HR): 1.41 and 1.35, respectively) and validation (HR: 1.37 and 1.32, respectively) groups (all P < 0.001). The predictive performance of AI and LHR was remarkably enhanced in patients with female gender, former/current smoking, colon cancer, early stage, positive vein tumor embolus, normal weight, preoperative hypertension or diabetes comorbidities. Calibration/discrimination analyses revealed that adding AI or LHR to the traditional model had a better fit in both groups. A prognostic nomogram was finally constructed with good predictive accuracy and discriminative capability (C-index = 0.814, P < 0.001). CONCLUSION: We consolidated the prognostic superiority of AI and LHR in predicting colorectal cancer mortality over TNM stage. PMID- 29324355 TI - Drug-mediation formation of nanohybrids for sequential therapeutic delivery in cancer cells. AB - In order to overcome the multidrug resistance (MDR) of tumor cells, it is very important to develop nanocarriers which can effectively load drugs while releasing them in a sequential way. Herein, nanohybrids with such properties have been fabricated by a first loading of one anticancer drug onto a silicate nanodisk (Laponite (LP), 25 nm in diameter and 0.92 nm in thickness) and a subsequent assembly with a pH sensitive poly(N-vinylpyrrolidone) (PVP) as a protective layer, followed by a loading of with another anticancer drug. The resulting nanohybrids (LDPM) present a high drug encapsulation efficiency and long-term colloidal stability. However, if the two drugs are loaded onto LP before PVP decoration, the formed particles tend to form microsized aggregates with poor colloidal stability. In vitro release study indicates that LDPM can deliver the anticancer drugs in a sequential way, which can be further accelerated under acidic microenvironments mimicking both solid tumor and endo lysosomal compartments, exerting synergistic anticancer cytotoxicity. The drug mediated formation of nanocarriers may enlighten a design of novel nanoplatform for co-delivery of therapeutic agents, beyond anticancer drugs, in a combinative way for drug delivery applications. PMID- 29324356 TI - Inflammation induced ER stress affects absorptive intestinal epithelial cells function and integrity. AB - Recent studies have linked impairment of intestinal epithelial function in inflammatory bowel disease to the disturbance of endoplasmic reticulum homeostasis (ER) in response to stress. Most studies are on goblet and Paneth cells, which are considered more susceptible to stress due to their role in the protection of intestinal epithelium against microbes and harmful substances. However, studies on the role of inflammation-induced ER stress in absorptive intestinal cells are scarce. In this study, we show, using Caco-2 cells as a model of intestinal epithelial barrier, that inducing ER stress using a cocktail mixture of pro-inflammatory mediators [TNFalpha (50ng/ml), MCP1 (50ng/ml), and IL 1beta (25ng/ml)] as observed in IBD patients induces ER stress and leads to significant changes in key proteins of the apical (sucrase-isomaltase (SI), dipeptidyl-peptidase (DPPIV), and ezrin) and basolateral (E-cadherin, zonula occludens (ZO-1), and connexin-43) membranes. Aberrant trafficking of SI, DPPIV was observed as early as 8h post-inflammation-induced ER stress and even in the absence of loss of intestinal cell integrity. The observed effect was associated with a re-localization of ezrin, ZO-1, and connexin-43, key differentiation and junction proteins. Collectively, this study shows that disruption of the trafficking of key digestive enzymes of the intestinal epithelium occur in response to inflammation induced ER stress before the loss of monolayer integrity. PMID- 29324357 TI - A pilot study of the role of the claustrum in attention and seizures in rats. AB - OBJECTIVE: The claustrum has been implicated in consciousness, and MRIs of patients with status epilepticus have shown increased claustral signal intensity. In an attempt to investigate the role of claustrum in cognition and seizures, we (1) assessed the effect of high-frequency stimulation (HFS) of the claustrum on performance in the operant chamber; (2) studied interclaustral and claustrohippocampal connectivity through cerebro-cerebral evoked potentials (CCEPs); and (3) investigated the role of claustrum in kainate-induced (KA) seizures. METHODS: Adult male Sprague-Dawley rats were trained in operant conditioning and implanted with electrodes in bilateral claustra and hippocampi. Claustrum HFS (50 Hz) was delivered bilaterally and unilaterally with increasing intensities from 50 to 1000 MUA, and performance scores were assessed. CCEPs were studied by averaging the responses to bipolar stimulations, 1-ms wide pulses at 0.1 Hz to the claustrum. KA seizures were analyzed on video-EEG recordings. RESULTS: Generalized Estimating Equations analysis revealed that claustral stimulation reduced task performance scores relative to rest sessions (bilateral: -15.8 percentage points, p < 0.0001; unilateral: -15.2, p < 0.0001). With some stimulations, the rats showed a stimulus-locked decrease in attentiveness and, occasionally, an inability to complete the operant task. CCEPs demonstrated interclaustral and claustrohippocampal connectivity. Some KA seizures appeared to originate from the claustrum. CONCLUSIONS: Findings from the operant conditioning task suggest stimulation of the claustrum can alter attention or awareness. CCEPs demonstrated connectivity between the two claustra and between the claustrum and the hippocampi. Such connectivity may be part of the circuitry that underlies the alteration of awareness in limbic seizures. Lastly, KA seizures showed early involvement of the claustrum, a finding that also supports a possible role of the claustrum in the alteration of consciousness that accompanies dyscognitive seizures. PMID- 29324358 TI - Regulatory CD4 T cells inhibit HIV-1 expression of other CD4 T cell subsets via interactions with cell surface regulatory proteins. AB - During chronic HIV-1 infection, regulatory CD4 T cells (Tregs) frequently represent the largest subpopulation of CD4 T cell subsets, implying relative resistant to HIV-1. When HIV-1 infection of CD4 T cells was explored in vitro and ex vivo from patient samples, Tregs possessed lower levels of HIV-1 DNA and RNA in comparison with conventional effector and memory CD4 T cells. Moreover, Tregs suppressed HIV-1 expression in other CD4 T cells in an in vitro co-culture system. This suppression was mediated in part via multiple inhibitory surface proteins expressed on Tregs. Antibody blockade of CTLA-4, PD-1, and GARP on Tregs resulted in increased HIV-1 DNA integration and mRNA expression in neighboring CD4 T cells. Moreover, antibody blockade of Tregs inhibitory proteins resulted in increased HIV-1 LTR transcription in co-cultured CD4 T cells. Thus, Tregs inhibit HIV-1 infection of other CD4 T cell subsets via interactions with inhibitory cell surface proteins. PMID- 29324359 TI - Progress toward an enhanced vaccine: Eight marked attenuated viruses to porcine reproductive and respiratory disease virus. AB - Recombinant viruses of strain Ingelvac(r) PRRS porcine reproductive and respiratory syndrome virus (PRRSV) modified live virus vaccine were produced with two individual small in-frame deletions in nonstructural protein 2 (nsp2; Delta23 and Delta87) and also the same deletions supplanted with foreign tags (Delta23 V5, Delta23-FLAG, Delta23-S, Delta87-V5, Delta87-FLAG, Delta87-S). The viruses, but one (Delta87-FLAG), were stable for 10 passages and showed minimal effects on in vitro growth. Northern hybridization showed that the Delta23-tagged probe detected intracellular viral genome RNA as well as shorter RNAs that may represent heteroclite species, while the Delta87-tagged probe detected predominantly only genome length RNAs. When the tagged viruses were used to probe nsp2 protein in infected cells, perinuclear localization similar to native nsp2 was seen. Dual infection of Delta23-S and Delta87-S viruses allowed some discrimination of individual tagged nsp2 protein, facilitating future research. The mutants could potentially also be used to differentiate infected from vaccinated animals. PMID- 29324360 TI - Evaluation of the zoonotic potential of multiple subgroups of clade 2.3.4.4 influenza A (H5N8) virus. AB - Clade 2.3.4.4 H5N8 highly pathogenic avian influenza viruses (HPAIVs) have spread worldwide. Phylogenetic analysis identified two genetic groups of the H5N8 HPAIVs in South Korea; group A evolved further into four subgroups. Here, we examined the zoonotic potential, both in vivo and in vitro, of genetically distinct subgroups of H5N8 HPAIVs isolated in South Korea. When compared with other subgroups, A/mallard/Korea/H2102/2015 (H2102) virus caused relatively severe disease in mice at high doses. In ferrets, all H5N8 viruses replicated restrictively in the respiratory tract and did not induce significant clinical signs of influenza infection. In vitro studies, all viruses displayed a hemagglutinin phenotype that was poorly adapted for infection of mammals, although the H2102 virus exhibited higher replication kinetics at 33 degrees C than the others. Although H5N8 HPAIVs have not yet acquired all the characteristics required for adaptation to mammals, their ability to evolve continuously underscores the need for timely risk assessment. PMID- 29324361 TI - Simultaneous removal of atrazine and organic matter from wastewater using anaerobic moving bed biofilm reactor: A performance analysis. AB - In this study, an anaerobic moving bed biofilm reactor (AMBBR) was designed to biodegrade atrazine under mesophilic (32 degrees C) condition and then it was evaluated for approximately 1 year. After biofilm formation, acclimation, and enrichment of microbial population within the bioreactor, the effect of various operation conditions such as changes in the concentration of influent atrazine and sucrose, hydraulic retention time (HRT), and salinity on the removal of atrazine and chemical oxygen demand (COD) were studied. In optimum conditions, the maximum removal efficiency of atrazine and COD was 60.5% and 97.4%, respectively. Various models were developed to predict the performance of atrazine removal as a function of HRT during continuous digestion. Also, coefficients kinetics was studied and the maximum atrazine removal rate was determined by Stover - Kincannon model (rmax = 0.223 kgATZ/m3d). Increasing salinity up to 20 g/L NaCl in influent flow could inhibit atrazine biodegradation process strongly in the AMBBR reactor; whereas, the reactor could tolerate the concentrations less than 20 g/L easily. Results showed that AMBBR is feasible, easy, affordable, so suitable process for efficiently biodegrading toxic chlorinated organic compounds such as atrazine. There was no accumulation of atrazine in the biofilm and the loss of atrazine in the control reactor was negligible; this shows that atrazine removal mechanism in this system was due to co-metabolism. PMID- 29324362 TI - X-ray system simulation software tools for radiology and radiography education. AB - OBJECTIVES: To develop x-ray simulation software tools to support delivery of radiological science education for a range of learning environments and audiences including individual study, lectures, and tutorials. METHODS: Two software tools were developed; one simulated x-ray production for a simple two dimensional radiographic system geometry comprising an x-ray source, beam filter, test object and detector. The other simulated the acquisition and display of two dimensional radiographic images of complex three dimensional objects using a ray casting algorithm through three dimensional mesh objects. Both tools were intended to be simple to use, produce results accurate enough to be useful for educational purposes, and have an acceptable simulation time on modest computer hardware. The radiographic factors and acquisition geometry could be altered in both tools via their graphical user interfaces. A comparison of radiographic contrast measurements of the simulators to a real system was performed. RESULTS: The contrast output of the simulators had excellent agreement with measured results. The software simulators were deployed to 120 computers on campus. CONCLUSIONS: The software tools developed are easy-to-use, clearly demonstrate important x-ray physics and imaging principles, are accessible within a standard University setting and could be used to enhance the teaching of x-ray physics to undergraduate students. ADVANCES IN KNOWLEDGE: Current approaches to teaching x ray physics in radiological science lack immediacy when linking theory with practice. This method of delivery allows students to engage with the subject in an experiential learning environment. PMID- 29324363 TI - Documentation integrity: Authorship functionalities of EHR in a Saudi Arabian hospital. AB - This paper aims to evaluate the authorship, privacy capabilities and functions of QuadraMed and BestCare systems, implemented at the Ministry of National Guard Health Affairs (MNGHA) in Riyadh, Saudi Arabia. A survey was conducted by interviewing back-end users of the EMR system in the KAMC hospital to check the aforementioned systems' authorship capabilities. Both the systems scored the same, with the overall result being 146/165 including the compliance level, which represents 88% availability of all authorship functions. The Quadra system's non complying item was identified for only one entity, which is related to the lack of diagnosis documentation. It does not aid physicians in enhancing their ability to document diagnosis, which depends on coding and has not been implemented within the system so far. However, BestCare system provides documenting diagnosis depending on the coding part rather than free text, suggesting it is a promising system with enhanced functionalities. PMID- 29324364 TI - Automatic non-invasive heartbeat quantification of Drosophila pupae. AB - The importance of studying model organisms such as Drosophila melanogaster has significantly increased in recent biological research. Amongst others, Drosophila can be used to study heart development and heartbeat related diseases. Here we propose a method for automatic in vivo heartbeat detection of Drosophila melanogaster pupae based on morphological structures which are recorded without any dissection using FIM imaging. Our approach is easy-to-use, has low computational costs, and enables high-throughput experiments. After automatically segmenting the heart region of the pupa in an image sequence, the heartbeat is indirectly determined based on intensity variation analysis. We have evaluated our method using 47,631 manually annotated frames from 29 image sequences recorded with different temporal and spatial resolutions which are made publicly available. We show that our algorithm is both precise since it detects more than 95% of the heartbeats correctly as well as robust since the same standardized set of parameters can be used for all sequences. The combination of FIM imaging and our algorithm enables a reliable heartbeat detection of multiple Drosophila pupae while simultaneously avoiding any time consuming preparation of the animals. PMID- 29324365 TI - How does social support relieve depression among flood victims? The contribution of feelings of safety, self-disclosure, and negative cognition. AB - BACKGROUND: Depression is one of the most common post-trauma symptoms that can be alleivated by social support. The purpose of this study was to examine the multiple mediating effects of social support on depression via feelings of safety, disclosure, and negative cognition. METHOD: One hundred and eighty-seven flood victims in Wuhu City, an area affected most severely by a flood during July 2016, were selected to complete a self-report questionnaire package. RESULTS: Social support has four indirect negative effects on depression, including a one step indirect path to self-disclosure, 2 two-step paths from feelings of safety to self-disclosure, and from self-disclosure to negative cognition about self, and a three-step indirect path from feelings of life safety via self-disclosure to negative self-cognition. LIMITATIONS: All variables were measured using self report scales. CONCLUSION: Social support may relieve depression in flood victims by inducing feelings of safety and self-disclosure, and by relieving negative cognition. PMID- 29324366 TI - Size matters - The olfactory bulb as a marker for depression. AB - BACKGROUND: Major Depression is mainly related to structural and functional alterations in brain networks involving limbic and prefrontal regions. Reduced olfactory sensitivity in depression is associated with reduced olfactory bulb (OB) volume. We determined if the OB volume reduction is a specific biomarker for depression and whether its diagnostic accuracy allows its use as a valid biomarker to support its diagnosis. METHODS: 84 in-patients with mixed mental disorders and 51 age-matched healthy controls underwent structural MR imaging with a spin-echo T2-wheighted sequence. Individual OB volume was calculated manually (interrater-reliability = .81, p < .001) and compared between groups. Multiple regression analysis with OB volume as dependent variable and Receiver Operator Characteristic analysis to obtain its diagnostic accuracy for depression were ruled out. RESULTS: Patients exhibited a 13.5% reduced OB volume. Multiple regression analysis showed that the OB volume variation was best explained by depression (beta = -.19), sex (beta = -.31) and age (beta = -.29), but not by any other mental disorder. OB volume attained a diagnostic accuracy of 68.1% for depression. LIMITATIONS: The patient group mainly contained highly comorbid patients with mostly internalizing disorders which limits the generalisability of the results of the regression analysis. CONCLUSION: The OB may serve as a marker for depression. We assume that reduced neural olfactory input to subsequent limbic and salience processing structures moderates this relation. However, the OB was in an inferior position compared to conventional questionnaires for diagnosis of depression. Combination with further structural or functional measurements is suggested. PMID- 29324367 TI - Integrating situation-specific dysfunctional expectations and dispositional optimism into the cognitive model of depression - A path-analytic approach. AB - BACKGROUND: Dysfunctional expectations are considered to be core features of mental disorders and, in particular, major depression. The aim of the present study was to integrate two important types of expectations into the cognitive model of depression: situation-specific dysfunctional expectations (SDE) and dispositional optimism (DO). It was hypothesized that the influence of both DO and intermediate beliefs (IB) on depressive symptoms would be mediated via SDE. METHODS: We examined 95 individuals (age M = 40.7, 68.1% female) with a diagnosed major depressive disorder from two inpatient clinics and one outpatient clinic. Measurements used in the study included the Depressive Expectations Scale, Dysfunctional Attitudes Scale, Life Orientation Test Revised, and Beck's Depression Inventory-II. Relationships between the constructs were analyzed using path-analytic models with bias-corrected bootstrapping confidence intervals. RESULTS: Results indicate that the effect of IB on depressive symptoms was fully mediated via SDE, while the effect of DO on depressive symptoms was partly mediated via SDE. IB and DO moderately correlated with each other. LIMITATIONS: Due to the cross-sectional design of the study, it is not possible to draw unambiguous conclusions regarding the causality of the suggested relationships. CONCLUSIONS: The present study stresses the crucial role of dysfunctional expectations for major depression. Moreover, it reveals that SDEs as expectations with a high level of situational specificity may pose an important link between global cognitions and depressive symptoms. Given this situational specificity, SDEs are amenable to disconfirmation through behavioral experiments and may therefore be a promising target for cognitive-behavioral interventions. PMID- 29324368 TI - Childhood disadvantage, education, and psychological distress in adulthood: A three-wave population-based study. AB - BACKGROUND: We assessed the mediating role of education in the association between childhood disadvantage and psychological distress in adulthood using longitudinal data collected in three waves, from 1994 to 2008, in the framework of the Tromso Study (N = 4530), a cohort that is representative of men and women from Tromso. METHODS: Education was measured at a mean age of 54.7 years, and psychological distress in adulthood was measured at a mean age of 61.7 years. Ordinary least square regression analysis was used to assess the associations between childhood disadvantage, education, and psychological distress in adulthood. The indirect effects and the proportion (%) of indirect effects of childhood disadvantage (via education) on psychological distress in adulthood were assessed by mediation analysis. RESULTS: Childhood disadvantage was associated with lower education and higher psychological distress in adulthood (p < 0.05). Lower education was associated with a higher psychological distress in adulthood (p < 0.05). A minor proportion (7.51%, p < 0.05) of the association between childhood disadvantage and psychological distress in adulthood was mediated by education. LIMITATIONS: Childhood disadvantages were measured retrospectively. CONCLUSION: The association between childhood disadvantage and psychological distress in adulthood is primarily independent of education. PMID- 29324370 TI - Model-based comparing efficacy of fluoxetine between elderly and non-elderly participants with major depressive disorder. AB - BACKGROUND: The high heterogeneity was existed among the studies of the elderly participants with major depressive disorder (MDD), which may lead to incorrect conclusions in the previous meta-analysis. This study used model based meta analysis to compare the efficacy of fluoxetine between the elderly and non elderly participants with MDD and to explain the heterogeneity among the studies. METHODS: A comprehensive literature search was conducted in the public databases, involving utilization of fluoxetine for treating MDD in the acute-phase. The time efficacy model was established based on the changes of the Hamilton Depression Rating Scale (HDRS) score compared to baseline level. The efficacy features and related factors of fluoxetine in the elderly participants were investigated by comparing with the non-elderly population. RESULTS: Sixty-one studies encompassing 4058 participants were included in the analysis. We found the trial design of placebo controlled vs. comparator controlled was a significant impact factor for the efficacy of fluoxetine. The typical decrease rate of HDRS score in the elderly participants was strikingly lower than that of the non-elderly participants at week 8, with 39.9% vs. 49.1% in the placebo controlled trial and 46.5% vs. 57.2% in the comparator controlled trial. LIMITATION: The efficacy of other antidepressants except fluoxetine in the elderly participants need to be explored in the future study. CONCLUSIONS: The efficacy of fluoxetine in the elderly participants was lower than that of the non-elderly participants. The heterogeneity of the trial design should be distinguished when comparing the efficacy of antidepressants between the elderly and non-elderly MDD participants. PMID- 29324371 TI - Multiple synchronous adenocarcinomas of the small bowel in a young patient: A case report. AB - INTRODUCTION: Adenocarcinoma of the small bowel is a rare neoplasm presented usually in elder patients as a single tumor. Its presentation as multiple tumors and in young patients is exceptional and there aren't any guidelines to orient its therapy. PRESENTATION OF CASE: We present the rare case of a sixteen-year-old woman that presents to the emergency department with an intussusception due to a small bowel tumor. The resected specimen showed multiple adenocarcinomas. A complete endoscopic and PET-CT study showed other 5 lesions from the duodenum to the ileum that were resected. Genetic counseling showed no pathogenic changes. The final staging was T2N0M0 and only surveillance was indicated. The patient is now 3 years without any recurrence. DISCUSSION: Multiple adenocarcinomas of the small bowel are a very infrequent presentation of the disease. Most common risk factors include Crohn disease and adenomas. Its presentation is usually vague with a delay in its diagnosis. The treatment remains mainly surgical with limited use of adjuvant therapy. The most important prognostic factor is lymph node involvement with 5-year survival that can range from 3%-60% depending on the stage. CONCLUSION: This case represents an exceptional presentation of a very rare pathology with few cases described in the literature. There isn't one single best study to stage the patient and surgery is still the standard of treatment while adjuvant therapies studies are being conducted. The young age and lack of predisposing factors or mutations leaves an open field for investigation. PMID- 29324369 TI - Early life social stress and resting state functional connectivity in postpartum rat anterior cingulate circuits. AB - INTRODUCTION: Continued development and refinement of resting state functional connectivity (RSFC) fMRI techniques in both animal and clinical studies has enhanced our comprehension of the adverse effects of stress on psychiatric health. The objective of the current study was to assess both maternal behavior and resting state functional connectivity (RSFC) changes in these animals when they were dams caring for their own young. It was hypothesized that ECSS exposed dams would express depressed maternal care and exhibit similar (same networks), yet different specific changes in RSFC (different individual nuclei) than reported when they were adult females. METHODS: We have developed an ethologically relevant transgenerational model of the role of chronic social stress (CSS) in the etiology of postpartum depression and anxiety. Initial fMRI investigation of the CSS model indicates that early life exposure to CSS (ECSS) induces long term changes in functional connectivity in adult nulliparous female F1 offspring. RESULTS: ECSS in F1 dams resulted in depressed maternal care specifically during early lactation, consistent with previous CSS studies, and induced changes in functional connectivity in regions associated with sensory processing, maternal and emotional responsiveness, memory, and the reward pathway, with robust changes in anterior cingulate circuits. LIMITATIONS: The sample sizes for the fMRI groups were low, limiting statistical power. CONCLUSION: This behavioral and functional neuroanatomical foundation can now be used to enhance our understanding of the neural etiology of early life stress associated disorders and test preventative measures and treatments for stress related disorders. PMID- 29324373 TI - Abdominal CT-aided diagnosis of acute appendicitis in the presence of mobile cecum: A case report. AB - INTRODUCTION: A mobile cecum is a frequently encountered congenital anomaly. It is important to recognize this atypical position of the cecum as it may interfere with an accurate diagnosis of acute appendicitis. PRESENTATION OF CASE: A 48-year old man presented with abdominal pain, anorexia, and fever. He had mild lower abdominal discomfort, and rebound tenderness in the suprapubic region, but no guarding or right lower quadrant findings. Laboratory tests identified an elevated white blood cell count (12350 cells/mL) and C-reactive protein level (4.56 mg/dL). In view of the clinical picture suggestive of localized peritonitis, an abdominal computed tomography (CT) was performed, which revealed a caudally located cecum, lying in the pelvis, along with evidence of an acutely inflamed appendix. An urgent surgical procedure was performed, which confirmed the diagnosis of acute appendicitis accompanying a mobile cecum. DISCUSSION: In the presence of a mobile cecum, the clinical findings of acute appendicitis may be atypical owing to the abnormal position of the appendix. In such cases, there is the possibility of a missed diagnosis. In our case, a CT examination that was performed in view of the clinical diagnosis of mild peritonitis aided in establishing the diagnosis of acute appendicitis and a mobile cecum. CONCLUSION: Anatomical variations of the cecum and the appendix may result in atypical presentation of acute appendicitis. A high index of suspicion, and a CT examination may be helpful in establishing the diagnosis in such cases. PMID- 29324372 TI - Dislocation of a cerebral protection device component during carotid stenting: A case report of favorable outcome from conservative management after failure of retrieval. AB - INTRODUCTION: Cerebral-protection devices (CPDs) are a well-established system for reduction of embolic risk in carotid artery angioplasty and stenting (CAS). Although rare, adverse events with CPDs are unpredictable and can be associated with serious outcomes and iatrogenic sequelae. PRESENTATION OF CASE: We describe the unique case of dislocation of a FilterWire EXTM filter loop during right CAS. On trying to recapture the CPD filter at the end of the procedure, the filter loop suddenly detached from the guidewire and dislocated to the proximal middle cerebral artery. Attempted retrieval of the loop failed and the patient developed a transient neurological deficit caused by an acute ischemic infarction in the lenticular nucleus. No further retrieval attempt was pursued. No further dislocation of the loop or clinical event have been reported during the 16-year follow up. DISCUSSION: This case reported a favorable outcome of conservative management for entrapped material from a CPD after iatrogenic damage from failed retrieval. No similar reports are available in the literature, and conservative management is generally not a recommended approach because of the potential complications. However, rescue retrieval attempts are as well a potential source of serious events, and no clear guidelines exist on the management of mechanical complications from CPD. CONCLUSION: Entrapment of CPD components constitutes an adverse event with no unique solution for risk-free management. The potential risks associated with the use of protection devices are still to be fully explored, and improving the standard of care and patient safety needs to be a top priority. PMID- 29324374 TI - Ileal GIST presenting with bacteremia and liver abscess: A case report and review of literature. AB - INTRODUCTION: Small intestine gastrointestinal stromal tumors can infrequently present with intra-abdominal abscess, perforation, obstruction or fistula. Tumor small intestine fistula is a rare phenomenon and occurs as a result of GISTs' propensity to cause mucosal ulceration. This allows bacteria from the gut to gain access to the systemic circulation and predisposes the patient to bacteremia and pyogenic liver abscess. PRESENTATION OF CASE: We present a case of a 63-year-old female whose initial symptoms included fever, nausea, vomiting and right upper quadrant pain. Radiologic studies revealed a liver lesion and an intra-abdominal mass containing oral contrast, suggesting involvement of the gastrointestinal tract. She was found to have a liver abscess, Streptococcus anginosus bacteremia and an ileal GIST that formed a fistula between the tumor and small intestine. We performed a surgical resection of the tumor and percutaneous drainage of the liver abscess. Imatinib was initiated post operatively and she experienced no recurrence, as demonstrated by a surveillance computed tomography scan at 12 months. CONCLUSION: Findings of a liver lesion in association with a small intestine GIST should raise concern for both metastatic disease and a possible infectious complication such as a pyogenic liver abscess. If a member of the Streptococcus milleri group is isolated in blood cultures, a consideration for gastrointestinal malignancy is imperative. This case report reviews a rare presentation of an ileal GIST with tumor-intestinal fistula, complicated by liver abscess and Streptococcus anginosus bacteremia. PMID- 29324375 TI - Cancer in an unexpected site post pouch surgery for familial adenomatous polyposis (FAP). AB - INTRODUCTION: Familial Adenomatous Polyposis (FAP) is a hereditary condition characterized by multiple colorectal adenomatous polyps. FAP is the most common adenomatous polyposis syndrome. Restorative proctocolectomy is the most commonly performed surgical procedure performed for patients suffering from FAP with different options for anastomosis, namely ileorectal anastomosis (IRA) or ileal pouch anal anastomosis (IPAA). The occurrence of adenomas is a common finding during follow up and surveillance post surgery for these patients. Although there are a few cases of carcinoma that were namely at the anal transitional zone (ATZ), there are only a few cases of ileal pouch related adenocarcinoma reported. This work has been reported in line with the SCARE criteria (Agha et al., 2016) [1]. PRESENTATION OF CASE: We report a case of a 34-year-old man diagnosed with FAP who underwent proctocolectomy with IPAA, and subsequently referred to our center, who, despite appropriate measures and surveillance, developed adenocarcinoma in the ileal pouch. DISCUSSION: Restorative proctocolectomy for Familial Adenomatous Polyposis (FAP) is the mainstay of treatment. There are different surgical options, each with its own set of advantages and disadvantages. The most favored option is proctocolectomy with ileal pouch anal anastomosis (IPAA) due to because it involves resection of the rectum. Despite these interventions, adenomas and/or carcinomas have been reported on follow up post surgery. CONCLUSION: Although the risk of developing adenomas or carcinomas in the ileal pouch post proctocolectomy with IPAA is low it should not be neglected as cancer occurrence or recurrence is unpredictable even with appropriate measures. PMID- 29324376 TI - Evaluation of Translaryngeal Percutaneous Arytenoid Lateralization (TPAL) in dogs with experimentally created laryngeal paralysis. AB - The aim of this experimental study was to evaluate the effect of Translaryngeal Percutaneous Arytenoid Lateralization (TPAL) in dogs with experimentally created laryngeal paralysis. All dogs (n=5) underwent bilateral recurrent laryngeal neurectomy before TPAL. Two TPAL suture techniques were evaluated. TPAL CranialCaudal (TPAL-CC) was performed first, followed 11 to 14days later by TPAL DorsalVentral (TPAL-DV). For both techniques, a mattress suture was placed through the arytenoid cartilage via an oral approach. Laryngeal examination was performed before, immediately after, and on days 1, 3 and 7 for both TPAL techniques. Ipsilateral hemiglottic surface area and the degree of laryngeal swelling or reaction to the suture were recorded. Laryngeal tissue was evaluated by histopathology at the end of the study. For both TPAL techniques, hemiglottic surface area was increased immediately after suture placement (P<0.05). At all other times, hemiglottic area was not statistically different from preoperative value (P>0.05). TPAL-DV resulted in less laryngeal swelling compared to TPAL-CC. Histopathology of the arytenoid cartilage surrounding the mattress suture revealed mucosal ulceration and inflammation consistent with the presence of the suture material. Both TPAL techniques were effective at lateralizing the arytenoid cartilage and significantly increasing hemiglottic surface area immediately after suture placement. However, mucosal swelling and loss of tension on the mattress suture lead to a decrease in glottic area within 24h. Further refinements in suture placement technique are warranted to minimize swelling and improve the duration of arytenoid lateralization prior to clinical application. PMID- 29324377 TI - Ammonia emissions from paddy fields are underestimated in China. AB - Excessive nitrogen (N) fertilizers are often used in China, and a large proportion of the N can be lost as ammonia (NH3). However, quantifying the NH3 emission from paddy fields is always affected by large uncertainties due to different measuring methods and other factors such as climate. In this study, using a standardized method, we measured the NH3 emissions in three typical annual rice cropping systems: single rice, double rice and rotation with other crops. The measurements were conducted for 2 years with a total of 3131 observations across China. Results showed that NH3 emissions accounted for 17.7% (14.4-21.0%) of the N applied under current farm practice, which was 33.1% (10.6 52.6%) higher than previous estimates. Nitrogen application rate was the dominant factor influencing NH3 emission rate, which exponentially increased with the N fertilizer rate (p < .001). Total NH3 emissions from paddy fields were estimated at 1.7 Tg N yr-1 in 2013 in China, several times the amount of N lost through leaching or runoff. This suggests that mitigation measures for non-point source pollution from cropland should take into account not only the N lost to water, but also to air, thereby improving air quality. PMID- 29324378 TI - Impact evaluation of environmental factors on respiratory function of asthma patients living in urban territory. AB - BACKGROUND: Environmental pollution, local climatic conditions and their association with the prevalence and exacerbation of asthma are topics of intense current medical investigation. MATERIALS AND METHODS: Air pollution in the area of Vladivostock was estimated both by the index of emission volumes of "air gaseous components" (nitrogen oxide and nitrogen dioxide, formaldehyde, hydrogen sulfide, carbon monoxide) in urban atmosphere and by mass spectrometric analysis of precipitates in snow samples. A total of 172 local asthma patients (101 controlled-asthma patients-CAP and 71 non-controlled asthma patients - nCAP) were evaluated with the use of spirometry and body plethysmography. Airway obstruction reversibility was evaluated with the use of an inhaled bronchodilator. Using discriminant analysis the association of environmental parameters with clinical indices of asthma patients is explored and thresholds of impact are established. RESULTS: CAP presented high sensitivity to large-size suspended air particles and to several of the studied climatic parameters. Discriminant analysis showed high values of Wilks' lambda index (alpha = 0.69-0.81), which implies limited influence of environmental factors on the respiratory parameters of CAP. nCAP were more sensitive and susceptible to the majority of the environmental factors studied, including air suspended toxic metals particles (Cr, Zn and Ni). Air suspended particles showed higher tendency for pathogenicity in nCAP population than in the CAP, with a wider range of particle sizes being involved. Dust fractions ranging from 0 to 1 MUm and from 50 to 100 MUm were additionally implicated compared to CAP group. Considerably lowest thresholds levels of impact are calculated for nCAP. PMID- 29324379 TI - Associating ambient exposure to fine particles and human fertility rates in China. AB - BACKGROUND: Adverse effects of ambient fine particles (PM2.5) on sperm quality and oocyte fertilization have been identified by previous research. However, insufficient human studies tested associations between PM2.5 and decreased fertility rates. METHODS: We associated long-term exposure to PM2.5 and county level fertility rates reported by 2010 census across China. Exposure assessments were based on PM2.5 maps (2009-2010) with a spatial resolution of 0.1 degrees derived from satellite remote sensing data from another published study. We used a Poisson regression to examine the relationship between PM2.5 and fertility rates with adjustment of potential confounders including county-level socioeconomic factors (e.g. sex ratio) and a spatially smoothed trend. RESULTS: We found that fertility rates were significantly decreased by 2.0% (95% confidence interval: 1.8%, 2.1%) per 10 MUg/m3 increment of PM2.5. We also found a geographical variation of the associations. CONCLUSIONS: The study add to epidemiological evidences on adverse effects of PM2.5 on fertility rates. PMID- 29324380 TI - Estimated individual inhaled dose of fine particles and indicators of lung function: A pilot study among Chinese young adults. AB - Fine particle (PM2.5)-related lung damage has been reported in most studies regarding environmental or personal PM2.5 concentrations. To assess effects of personal PM2.5 exposures on lung function, we recruited 20 postgraduate students and estimated the individual doses of inhaled PM2.5 based on their microenvironmetal PM2.5 concentrations, time-activity patterns and refereed inhalation rates. During the period of seven consecutive days in each of the four seasons, we repeatedly measured the daily lung function parameters and airway inflammation makers such as fractional exhaled nitric oxide (FeNO) as well as systemic inflammation markers including interleukin-1beta on the final day. The high individual dose (median (IQR)) of inhaled PM2.5 was 957 (948) MUg/day. We observed a maximum FeNO increase (9.1% (95%CI: 2.2-15.5)) at lag 0 day, a maximum decrease of maximum voluntary ventilation (11.8% (95% CI: 4.6-19.0)) at lag 5 day and a maximum interleukin-1beta increase (103% (95% CI: 47-159)) at lag 2 day for an interquartile range increase in the individual dose of inhaled PM2.5 during the four seasons. Short-term exposure to PM2.5 assessed by the individual dose of inhaled PM2.5 was associated with higher airway and systemic inflammation and reduced lung function. Further studies are needed to understand better underlying mechanisms of lung damage following acute exposure to PM2.5. PMID- 29324381 TI - Comparative study of diesel and biodiesel exhausts on lung oxidative stress and genotoxicity in rats. AB - The contribution of diesel exhaust to atmospheric pollution is a major concern for public health, especially in terms of occurrence of lung cancers. The present study aimed at addressing the toxic effects of a repeated exposure to these emissions in an animal study performed under strictly controlled conditions. Rats were repeatedly exposed to the exhaust of diesel engine. Parameters such as the presence of a particle filter or the use of gasoil containing rapeseed methyl ester were investigated. Various biological parameters were monitored in the lungs to assess the toxic and genotoxic effects of the exposure. First, a transcriptomic analysis showed that some pathways related to DNA repair and cell cycle were affected to a limited extent by diesel but even less by biodiesel. In agreement with occurrence of a limited genotoxic stress in the lungs of diesel exposed animals, small induction of gamma-H2AX and acrolein adducts was observed but not of bulky adducts and 8-oxodGuo. Unexpected results were obtained in the study of the effect of the particle filter. Indeed, exhausts collected downstream of the particle filter led to a slightly higher induction of a series of genes than those collected upstream. This result was in agreement with the formation of acrolein adducts and gammaH2AX. On the contrary, induction of oxidative stress remained very limited since only SOD was found to be induced and only when rats were exposed to biodiesel exhaust collected upstream of the particle filter. Parameters related to telomeres were identical in all groups. In summary, our results point to a limited accumulation of damage in lungs following repeated exposure to diesel exhausts when modern engines and relevant fuels are used. Yet, a few significant effects are still observed, mostly after the particle filter, suggesting a remaining toxicity associated with the gaseous or nano-particular phases. PMID- 29324382 TI - Spatial and temporal distribution of antibiotic resistomes in a peri-urban area is associated significantly with anthropogenic activities. AB - With the rapid development of urbanization and industrialization, the peri-urban areas are often the sites for waste dumps, which may exacerbate the occurrence and spread of antibiotic resistance from waste to soil bacteria. However, the profiles of antibiotic resistomes and the associated factors influencing their dissemination in peri-urban areas have not been fully explored. Here, we characterized the antibiotic resistance genes (ARGs) in peri-urban arable and pristine soils in four seasons at the watershed scale, by using high-throughput qPCR. ARGs in peri-urban soils were diverse and abundant, with a total of 222 genes were detected in the peri-urban soil samples. The arable soil harbored more diverse ARGs compared to the pristine soils, and nearly all the ARGs detected in the pristine soils were also detected in the farmlands. A random forest prediction showed that the overall patterns of ARGs clustered closely with the landuse type. Mantel test and partial redundancy analysis indicated that bacterial community variation is a major contributor to antibiotic resistome alteration. Significant positive correlation was found between the abundance of ARGs and mobile genetic elements (MGEs), suggesting potential mobility of ARGs in peri-urban areas. Our results extend knowledge of the resistomes compositions in peri-urban areas, and suggest that anthropogenic activities driving its spatial and temporal distribution. PMID- 29324383 TI - The influence of algal organic matter produced by Microcystis aeruginosa on coagulation-ultrafiltration treatment of natural organic matter. AB - Cyanobacterial bloom causes the release of algal organic matter (AOM), which inevitably affects the treatment processes of natural organic matter (NOM). This study works on treating micro-polluted surface water (SW) by emerging coagulant, namely titanium sulfate (Ti(SO4)2), followed by Low Pressure Ultrafiltration (LPUF) technology. In particular, we explored the respective influence of extracellular organic matter (EOM) and intracellular organic matter (IOM) on synergetic EOM-NOM/IOM-NOM removal, functional mechanisms and subsequent filtration performance. Results show that the IOM inclusion in surface water body facilitated synergic IOM-NOM composite pollutants removal by Ti(SO4)2, wherein loosely-aggregated flocs were produced, resulting in floc cake layer with rich porosity and permeability during LPUF. On the contrary, the surface water invaded by EOM pollutants increased Ti(SO4)2 coagulation burden, with substantially deteriorated both UV254-represented and dissolved organic matter (DOC) removal. Corresponded with the weak Ti(SO4)2 coagulation for EOM-NOM removal was the resultant serious membrane fouling during LPUF procedure, wherein dense cake layer was formed due to the compact structure of flocs. Although the IOM enhanced NOM removal with reduced Ti(SO4)2 dose and yielded mitigated membrane fouling, larger percentage of irreversible fouling was seen than NOM and EOM-NOM cases, which was most likely due to the substances with small molecular weight, such as microcystin, adhering in membrane pores. This research would provide theoretical basis for dose selection and process design during AOM-NOM water treatment. PMID- 29324384 TI - Flame retardants in UK furniture increase smoke toxicity more than they reduce fire growth rate. AB - This paper uses fire statistics to show the importance of fire toxicity on fire deaths and injuries, and the importance of upholstered furniture and bedding on fatalities from unwanted fires. The aim was to compare the fire hazards (fire growth and smoke toxicity) using different upholstery materials. Four compositions of sofa-bed were compared: three meeting UK Furniture Flammability Regulations (FFR), and one using materials without flame retardants intended for the mainland European market. Two of the UK sofa-beds relied on chemical flame retardants to meet the FFR, the third used natural materials and a technical weave in order to pass the test. Each composition was tested in the bench-scale cone calorimeter (ISO 5660) and burnt as a whole sofa-bed in a sofa configuration in a 3.4 * 2.25 * 2.4 m3 test room. All of the sofas were ignited with a No. 7 wood crib; the temperatures and yields of toxic products are reported. The sofa beds containing flame retardants burnt somewhat more slowly than the non-flame retarded EU sofa-bed, but in doing so produced significantly greater quantities of the main fire toxicants, carbon monoxide and hydrogen cyanide. Assessment of the effluents' potential to incapacitate and kill is provided showing the two UK flame retardant sofa-beds to be the most dangerous, followed by the sofa-bed made with European materials. The UK sofa-bed made only from natural materials (Cottonsafe(r)) burnt very slowly and produced very low concentrations of toxic gases. Including fire toxicity in the FFR would reduce the chemical flame retardants and improve fire safety. PMID- 29324385 TI - Ameliorative effects of selenium on arsenic-induced cytotoxicity in PC12 cells via modulating autophagy/apoptosis. AB - Arsenic is well known toxicant responsible for human diseases including cancers. On the other hand, selenium is an essential trace element with significant chemopreventive effects, anticancer potentials and antioxidant properties. Although previous studies have reported antagonism/synergism between arsenic and selenium in biological systems, the biomolecular mechanism/s is still inconclusive. Therefore, to elucidate the molecular phenomena in cellular level, we hypothesized that co-exposure of selenium with arsenic may have suppressive effects on arsenic-induced cytotoxicity. We found that selenium in co-exposure with arsenic increases cell viability, and suppresses oxidative stress induced by arsenic in PC12 cells. Consequently, DNA fragmentation due to arsenic exposure was also reduced by arsenic and selenium co-exposure. Furthermore, western blot analyses revealed that simultaneous exposure of both metals significantly inhibited autophagy which further suppressed apoptosis through positively regulation of key proteins; p-mTOR, p-Akt, p-Foxo1A, p62, and expression of ubiquitin, Bax, Bcl2, NFkB, and caspases 3 and 9, although those are negatively regulated by arsenic. In addition, reverse transcriptase PCR analysis confirmed the involvement of caspase cascade in cell death process induced by arsenic and subsequent inhibition by co-exposure of selenium with arsenic. The cellular accumulation study of arsenic in presence/absence of selenium via inductively coupled plasma mass spectrometry confirmed that selenium effectively retarded the uptake of arsenic in PC12 cells. Finally, these findings imply that selenium is capable to modulate arsenic-induced intrinsic apoptosis pathway via enhancement of mTOR/Akt autophagy signaling pathway through employing antioxidant potentials and through inhibiting the cellular accumulation of arsenic in PC12 cells. PMID- 29324386 TI - Effects of two ecological earthworm species on atrazine degradation performance and bacterial community structure in red soil. AB - Vermicomposting is an effective and environmentally friendly approach for eliminating soil organic contamination. Atrazine is one of the most commonly applied triazinic herbicides and frequently detected in agricultural soils. This study investigated the roles and mechanisms of two earthworm species (epigeic Eisenia foetida and endogeic Amynthas robustus) in microbial degradation of atrazine. Both earthworms accelerated atrazine degradation performance from 39.0% in sterile soils to 94.9%-95.7%, via neutralizing soil pH, consuming soil humus, altering bacterial community structure, enriching indigenous atrazine degraders and excreting the intestinal atrazine-degrading bacteria. Rhodoplanes and Kaistobacter were identified as soil indigenous degraders for atrazine mineralization and stimulated by both earthworm species. A. robustus excreted the intestinal Cupriavidus and Pseudomonas, whereas Flavobacterium was released by E. foetida. This study provides a comprehensive understanding of the distinct effects of two earthworm species on soil microbial community and atrazine degradation, offering technical supports to apply vermicomposting in effective soil bioremediation. PMID- 29324387 TI - A novel photoactive and three-dimensional stainless steel anode dramatically enhances the current density of bioelectrochemical systems. AB - This study reports a high-performance 3D stainless-steel photoanode (3D SS photoanode) for bioelectrochemical systems (BESs). The 3D SS photoanode consists of 3D carbon-coated SS felt bioactive side and a flat alpha-Fe2O3-coated SS plate photoactive side. Without light illumination, the electrode reached a current density of 26.2 +/- 1.9 A m-2, which was already one of the highest current densities reported thus far. Under illumination, the current density of the electrode was further increased to 46.5 +/- 2.9 A m-2. The mechanism of the photo enhanced current production can be attributed to the reduced charge-transfer resistance between electrode surface and the biofilm with illumination. It was also found that long-term light illumination can enhance the biofilm formation on the 3D SS photoanode. These findings demonstrate that using the synergistic effect of photocatalysis and microbial electrocatalysis is an efficient way to boost the current production of the existing high-performance 3D anodes for BESs. PMID- 29324388 TI - Toxicity of surface-modified copper oxide nanoparticles in a mouse macrophage cell line: Interplay of particles, surface coating and particle dissolution. AB - The rapid dissolution of copper oxide (CuO) nanoparticles (NPs) with release of ions is thought to be one of the main factors modulating their toxicity. Here we assessed the cytotoxicity of a panel of CuO NPs (12 nm +/- 4 nm) with different surface modifications, i.e., anionic sodium citrate (CIT) and sodium ascorbate (ASC), neutral polyvinylpyrrolidone (PVP), and cationic polyethylenimine (PEI), versus the pristine (uncoated) NPs, using a murine macrophage cell line (RAW264.7). Cytotoxicity, reactive oxygen species (ROS) production, and cellular uptake were assessed. The cytotoxicity results were analyzed by the benchmark dose (BMD) method and the NPs were ranked based on BMD20 values. The PEI-coated NPs were found to be the most cytotoxic. Despite the different properties of the coating agents, NP dissolution in cell medium was only marginally affected by surface modification. Furthermore, CuCl2 (used as an ion control) elicited significantly less cytotoxicity when compared to the CuO NPs. We also observed that the antioxidant, N-acetylcysteine, failed to protect against the cytotoxicity of the uncoated CuO NPs. Indeed, the toxicity of the surface modified CuO NPs was not directly linked to particle dissolution and subsequent Cu burden in cells, nor to cellular ROS production, although CuO-ASC NPs, which were found to be the least cytotoxic, yielded lower levels of ROS in comparison to pristine NPs. Hierarchical cluster analysis suggested, instead, that the toxicity in the current in vitro model could be explained by synergistic interactions between the NPs, their dissolution, and the toxicity of the coating agents. PMID- 29324389 TI - Dynamic validation of online applied and surrogate-based models for tertiary ozonation on pilot-scale. AB - New robust correlation models for ozonation, based on UVA254 and fluorescence surrogate parameters and developed considering kinetic information, have been applied at pilot-scale. This model framework is validated with the aim for operators to control the ozone dose for the removal of trace organic contaminants (TrOCs) in effluents from full-scale municipal wastewater treatment plants. The inflected correlation model between DeltaTrOCs and the surrogates predicts the removal of TrOCs (based on statistical evidence) solely using the 2nd order reaction rate constant with ozone (kO3) and in a more adequate manner than similar single correlation models. This allows the use of this new model for current and future TrOCs under investigation which is highly interesting when imposed discharge limits might include more and other TrOCs in future. The use of UVA254 might be preferable at the current timing for online monitoring of TrOC abatement as the model showed a good predictive power (based on statistical evidence and visual confirmation). Reliable online sensors are more widespread (and commercially) available compared to fluorescence sensors which are still under development, with the exception of a few examples. Nevertheless, the data processing of the fluorescence signals, isolating the different intensities associated with moieties reacting similarly to ozone might even increase the predictive power, given the lower degree of interference (i.e. less scattering). PMID- 29324390 TI - NFAT-1 hyper-activation by methionine enkephalin (MENK) significantly induces cell apoptosis of rats C6 glioma in vivo and in vitro. AB - The aim of the work was to investigate the effect and possible mechanism of MENK on the growth of rat C6 glioma in vivo or in vitro. Our findings showed that MENK could inhibit the growth of rat C6 glioma, prolong median survival times in tumor bearing rats, and induce glioma cell apoptosis. Moreover, MENK could increase the activities of caspase-3, caspase-8 and caspase-9. It also increased the expression of Fas, FasL, Bax, while decreased the expression of Bcl-2. We further confirmed that MENK could increase opioid receptors MOR and DOR expressions, Ca2+ influx into the cytoplasm, and a substantial increase of NFAT1accumulation in the nuclei in C6 glioma cell. When we specifically knocked down NFAT1, there was no effect of MENK on the cell viability and FasL up-regulation in NFAT1 knocked-down cell. These results demonstrate that MENK could bind to opioid receptors MOR and DOR on C6 glioma cells and trigger a Ca2+ influx into the cytoplasm, resulting in translocation of NFAT1 into the nucleus. The hyper-activation of NFAT1 may regulate transcription of downstream gene, such as FasL, and induce apoptosis of rat C6 glioma cells. PMID- 29324391 TI - siRNA-mediated c-Rel knockdown ameliorates collagen-induced arthritis in mice. AB - Previous studies have shown that inflammatory mediators involved in the development of rheumatoid arthritis (RA) are regulated by the Rel/nuclear factor kappaB (Rel/NF-kappaB) transcription factor family. c-Rel, a member of the Rel/NF kappaB family that is preferentially expressed by immune cells, is a risk factor for several inflammatory diseases including RA. In the current study, we investigated whether targeting c-Rel can be used to treat collagen-induced arthritis, an animal model for RA. c-Rel specific siRNA (siRel) delivered by nanoparticles was used to knockdown the expression of c-Rel. Our results showed that siRel treatment significantly ameliorated collagen-induced arthritis. Further study revealed that c-Rel expression in the dendritic cells and macrophages from mice treated with siRel was significantly down-regulated. Consistent with the phenotypical result, the expression of inflammatory cytokines TNF-alpha, IL-1beta, IL-6, IL-12 and IL-23 by peritoneal macrophages and splenocytes were significantly decreased. In addition, attenuated systemic and collagen-specific Th1 and Th17 immune responses were observed. Furthermore, we found that the expression of inflammatory cytokines was significantly down regulated and the infiltration of CD3+ T cells and F4/80+ macrophages was markedly reduced in hind paws of mice treated with siRel. Collectively, our study provides strong evidence that siRNA-mediated c-Rel knockdown can suppress the development of collagen-induced arthritis in mice. Therefore, blocking c-Rel may represent an attracting strategy for the treatment of human rheumatoid arthritis. PMID- 29324392 TI - Abnormal RNA splicing and genomic instability after induction of DNMT3A mutations by CRISPR/Cas9 gene editing. AB - DNA methyltransferase 3A (DNMT3A) mediates de novo DNA methylation. Mutations in DNMT3A are associated with hematological malignancies, most frequently acute myeloid leukemia. DNMT3A mutations are hypothesized to establish a pre-leukemic state, rendering cells vulnerable to secondary oncogenic mutations and malignant transformation. However, the mechanisms by which DNMT3A mutations contribute to leukemogenesis are not well-defined. Here, we successfully created four DNMT3A mutated K562 cell lines with frameshift mutations resulting in truncated DNMT3A proteins. DNMT3A-mutated cell lines exhibited significantly impaired growth and increased apoptotic activity compared to wild-type (WT) cells. Consistent with previous studies, DNMT3A-mutated cells displayed impaired differentiation capacity. RNA-seq was used to compare transcriptomes of DNMT3A-mutated and WT cells; DNMT3A ablation resulted in downregulation of genes involved in spliceosome function, causing dysfunction of RNA splicing. Unexpectedly, we observed DNMT3A-mutated cells to exhibit marked genomic instability and an impaired DNA damage response compared to WT. CRISPR/Cas9-mediated DNMT3A-mutated K562 cells may be used to model effects of DNMT3A mutations in human cells. Our findings implicate aberrant splicing and induction of genomic instability as potential mechanisms by which DNMT3A mutations might predispose to malignancy. PMID- 29324393 TI - Changing students' perceptions of the homeless: A community service learning experience. AB - The homeless are an underserved, local vulnerable population that can benefit from a service learning clinical practicum experience for baccalaureate prepared nursing students. Negative attitudes and disrespect among healthcare workers has been identified by the homeless as a barrier to healthcare. A service learning experience with a vulnerable population has been shown to change nursing students' attitudes and beliefs. A large university in a southern city partnered with a community based organization that provided services to the homeless to educate senior nursing students in a service learning experience. The goal of this project was to examine attitudes and perceptions of nursing students toward the homeless population before and after participation in a service learning clinical practicum experience. This case study utilized a pre and post experience questionnaire to collect qualitative data for the purposes of the project. The findings revealed students demonstrated a decrease in fear, an increase in empathy, and a deeper understanding of the advocacy role of nurses for people experiencing homelessness. Nurse educators are challenged to engage students with vulnerable populations to change the attitudes and perceptions for improvement in the overall health of communities served worldwide. Partnerships and service learning experiences can benefit all. PMID- 29324394 TI - Effects of ocean acidification on copepods. AB - Ocean acidification (OA) leads to significant changes in seawater carbon chemistry, broadly affects marine organisms, and considered as a global threat to the fitness of marine ecosystems. Due to the crucial role of copepods in marine food webs of transferring energy from primary producers to higher trophic levels, numerous studies have been conducted to examine the impacts of OA on biological traits of copepods such as growth and reproduction. Under OA stress, the copepods demonstrated species-specific and stage-dependent responses. Notably, different populations of the same copepod species demonstrated different sensitivities to the increased pCO2. In copepods, the deleterious effects of OA are also reinforced by other naturally occurring co-stressors (e.g., thermal stress, food deprivation, and metal pollution). Given that most OA stress studies have focused on the effects of short-term exposure (shorter than a single generation), experiments using adults might have underestimated the damaging effects of OA and the long-term multigenerational exposure to multiple stressors (e.g., increased pCO2 and food shortage) will be required. Particularly, omics-based technologies (e.g., genomics, proteomics, and metabolomics) will be helpful to better understand the underlying processes behind biological responses (e.g., survival, development, and offspring production) at the mechanistic level which will improve our predictions of the responses of copepods to climate change stressors including OA. PMID- 29324395 TI - Effects of lanthanum on Microcystis aeruginosa: Attention to the changes in composition and content of cellular microcystins. AB - Algal blooms threaten human health and aquatic ecosystem through the production of microcystins (MCs) by toxic strains. The accumulation of rare earth elements (REEs) in water affects the growth and physiological activities of algae. However, whether or how REEs affect cellular microcystins (MCs) is largely unknown. In this study, the effects of lanthanum ion [La(III)], a type of REE, on the MCs in Microcystis aeruginosa were investigated, and the mechanism of the effect was analyzed using ecological stoichiometry. The different concentrations of La(III) were selected to correlate environmental pollution status. Low-dose La(III) (0.2, 2.0, and 4.0 MUM) exposure increased the total content of MCs and the percentage contents of microcystin-YR (MC-YR) and microcystin-LW (MC-LW) and decreased the percentage content of microcystin-LR (MC-LR). High-dose La(III) (8.0, 20, 40, and 60 MUM) exposure decreased the total content of the MCs, increased the percentage content of MC-LR, and decreased the percentage contents of MC-YR and MC-LW. The changes in the total MCs content were positively associated with the ratios of C:P and N:P in algal cells. The composition of MCs was dependent on the ratio of C:N in algal cells; for example, the percentage content of MC-LR decreased and the percentage content of MC-YR and MC-LW increased as the ratio of C:N in algal cells increased. In conclusion, La(III) could affect the content and composition of MCs via changes in the growth and chlorophyll-a content of Microcystis aeruginosa, and these effects depended on the ratios of C:P, N:P, and C:N in Microcystis aeruginosa. Such changes may influence the toxicity of Microcystis blooms. The results provides a new insight into the mechanism of REEs effects on algal toxins and provide references for evaluating environmental risks of REEs pollution in aquatic ecosystems. PMID- 29324396 TI - Cyberchondria: Overlap with health anxiety and unique relations with impairment, quality of life, and service utilization. AB - Cyberchondria refers to a clinical phenomenon in which repeated Internet searches regarding medical information result in excessive concerns about physical health. Cyberchondria is positively associated with symptoms of health anxiety, though it remains unclear as to whether cyberchondria poses a unique public burden. The current study replicated previous findings regarding the relationship between cyberchondria and health anxiety, and extended those findings to examine the extent to which health anxiety and cyberchondria may be differentially associated with public health outcomes, including impairment, quality of life, and service utilization. Community participants (N = 462) recruited via online crowdsourcing completed a battery of self-report questionnaires assessing cyberchondria, health anxiety, and measures of public health outcomes, including the WHOQOL and SDS. Bifactor latent variable modeling indicated that cyberchondria was closely related to, yet importantly distinct from, health anxiety. Moreover, when accounting for overlap with health anxiety, cyberchondria was associated with increased functional impairment and healthcare utilization. Results provide further support for the identification of cyberchondria as a distinct set of clinical symptoms that may pose a significant public health burden. Future research should determine ways in which to treat and/or prevent symptoms. PMID- 29324397 TI - Serum levels of cortisol, dehydroepiandrosterone, and oxytocin in children with attention-deficit/hyperactivity disorder combined presentation with and without comorbid conduct disorder. AB - The present study aimed to investigate serum cortisol, dehydroepiandrosterone (DHEA), and oxytocin levels of children with attention-deficit/hyperactivity disorder (ADHD) combined presentation and those diagnosed with ADHD combined presentation and coexisting conduct disorder. A total of 74 drug-naive children with ADHD combined presentation alone, 32 children with ADHD combined presentation + conduct disorder, and 42 healthy controls were included. The severities of ADHD and conduct disorder symptoms were assessed via parent- and teacher-rated questionnaires. The severity of aggression, anxiety, and depression symptoms of the children were assessed by the self-report inventories. Independent of potential confounders, including age, sex, pubertal stage, and severity of depression and anxiety, serum oxytocin levels of the ADHD combined presentation + conduct disorder group were significantly lower than those of both the ADHD combined presentation alone and control groups. There was also a trend for the ADHD combined presentation + conduct disorder group to show lower serum DHEA levels than that of the ADHD combined presentation alone group. However, serum cortisol levels did not show significant alterations among the groups. These findings suggest that oxytocin and DHEA may play a role in the pathophysiology of conduct disorder, at least in the presence of ADHD combined presentation. PMID- 29324398 TI - Epilepsy in patients with pineal gland cyst. AB - OBJECTIVE: The aim of the study is to describe types of epileptic seizures in patients with pineal gland cyst (PGC) and their outcome during follow up period (6-10 years). We wanted to determine whether patients with epilepsy differ in PGC volume and compression of the PGC on surrounding brain structures compared to patients with PGC, without epilepsy. PATIENTS AND METHODS: We analyzed prospectivelly 92 patients with PGC detected on magnetic resonance (MR) of the brain due to various neurological symptoms during the period 2006-2010. Data on described compression of the PGC on surrounding brain structures and size of the PGC were collected. RESULTS: 29 patients (16 women, 13 men), mean age 21.17 years had epilepsy and PGC (epilepsy group). 63 patients (44 women, 19 men), mean age 26.97 years had PGC without epilepsy (control group). Complex partial seizures were present in 8 patients, complex partial seizures with secondary generalization in 8 patients, generalized tonic clonic seizures (GTCS) in 10 and absance seizures in 3 patients. Mean PGC volume in epilepsy group was 855.93 mm3, in control group 651.59 mm3. There was no statistically significant difference between epilepsy and control group in PGC volume. Compression of PGC on surrounding brain structures was found in 3/29 patients (10.34%) in epilepsy group and in 11/63 patients (17.46%) in control group with no statistically significant difference between epilepsy and control group. All patients with epilepsy were put on antiepileptic therapy (AET). During the follow up period, 23 patients (79.31%) were seizure free, 3 patients (13.04%) had reduction in seizure frequency, whereas 3 patients had no improvement in seizure frequency. Two patients from epilepsy group and 3 patients from control group were operated with histologically confirmed diagnosis of PGC in 4, and pinealocytoma in 1 patient. CONCLUSIONS: In patients with PGC, epileptic seizures were classified as: complex partial seizures (with or without secondary generalization), GTCS and absance seizures. All patients were put on AET. During follow up period 79.31% patients were seizure free. There was no difference in PGC volume, nor in described compression of the PGC on surrounding brain structures between epilepsy and control group. Based on our findings, pathomechanism of epileptic seizures in patients with PGC cannot be attributable solely to PGC volume or described compression on surrounding brain structures based on MRI findings. PMID- 29324399 TI - Primary intracranial leiomyosarcoma in an immunocompetent patient: Case report and review of the literature. AB - Primary leiomyosarcoma is a rare tumor in the CNS, with few reported cases. Here, we describe a case of a primary intracranial leiomyosarcoma of the tentorium cerebelli. A 43-year-old woman presented with headache, acute vision loss, and difficulty speaking. MRI revealed a large heterogeneous-enhancing occipital mass, which was subsequently resected and diagnosed as a primary intracranial leiomyosarcoma. The patient went onto adjuvant radiotherapy delivering 60 Gy in 30 fractions. These tumors are exceedingly rare in immunocompetent individuals. We reviewed the 16 cases that have been reported in the literature. Surgical resection was the most common treatment (92%) with 53% receiving adjuvant radiation. There currently is no standard treatment regimen for intracranial leiomyosarcomas. Additional case reports that include descriptive treatment approaches with patient outcomes may help ascertain the best approach to treating these malignancies. PMID- 29324400 TI - Determination of atomic positions from time resolved high resolution transmission electron microscopy images. AB - For many reaction processes, such as catalysis, phase transformations, nanomaterial synthesis etc., nanoscale observations at high spatial (sub nanometer) and temporal (millisecond) resolution are required to characterize and comprehend the underlying factors that favor one reaction over another. The combination of such spatial and temporal resolution (up to 600 us), while rich in information, produces a large number of snapshots, each of which must be analyzed to obtain the structural (and thereby chemical) information. Here we present a methodology for automated quantitative measurement of real-time atomic position fluctuations in a nanoparticle. We leverage a combination of several image processing algorithms to precisely identify the positions of the atomic columns in each image. A geometric model is then used to measure the time-evolution of distances and angles between neighboring atomic columns to identify different phases and quantify local structural fluctuations. We apply this technique to determine the atomic-level fluctuations in the relative fractions of metal and metal-carbide phases in a cobalt catalyst nanoparticle during single-walled carbon nanotube (SWCNT) growth. These measurements provided a means to obtain the number of carbon atoms incorporated into and released from the catalyst particle, thereby helping resolve carbon reaction pathways during SWCNT growth. Further we demonstrate the use of this technique to measure the reaction kinetics of iron oxide reduction. Apart from reducing the data analysis time, the statistical approach allows us to measure atomic distances with sub-pixel resolution. We show that this method can be applied universally to measure atomic positions with a precision of 0.01 nm from any set of atomic-resolution video images. With the advent of high time-resolution direct detection cameras, we anticipate such methods will be essential in addressing the metrology problem of quantifying large datasets of time-resolved images in future. PMID- 29324402 TI - C-FSCV: Compressive Fast-Scan Cyclic Voltammetry for Brain Dopamine Recording. AB - This paper presents a novel compressive sensing framework for recording brain dopamine levels with fast-scan cyclic voltammetry (FSCV) at a carbon-fiber microelectrode. Termed compressive FSCV (C-FSCV), this approach compressively samples the measured total current in each FSCV scan and performs basic FSCV processing steps, e.g., background current averaging and subtraction, directly with compressed measurements. The resulting background-subtracted faradaic currents, which are shown to have a block-sparse representation in the discrete cosine transform domain, are next reconstructed from their compressively sampled counterparts with the block sparse Bayesian learning algorithm. Using a previously recorded dopamine dataset, consisting of electrically evoked signals recorded in the dorsal striatum of an anesthetized rat, the C-FSCV framework is shown to be efficacious in compressing and reconstructing brain dopamine dynamics and associated voltammograms with high fidelity (correlation coefficient, ), while achieving compression ratio, CR, values as high as ~ 5. Moreover, using another set of dopamine data recorded 5 minutes after administration of amphetamine (AMPH) to an ambulatory rat, C-FSCV once again compresses (CR = 5) and reconstructs the temporal pattern of dopamine release with high fidelity ( ), leading to a true-positive rate of 96.4% in detecting AMPH-induced dopamine transients. PMID- 29324401 TI - Unblinded, randomized multicenter trial comparing lamotrigine and valproate combination with controlled-release carbamazepine monotherapy as initial drug regimen in untreated epilepsy. AB - PURPOSE: To compare controlled-release carbamazepine monotherapy (CBZ-CR) with lamotrigine and valproate combination therapy (LTG + VPA) in equivalent total drug load, as initial drug regimen in untreated patients with partial and/or generalized tonic-clonic seizures (GTCS). METHODS: This unblinded, randomized, 60 week superiority trial recruited patients having two or more unprovoked seizures with at least one seizure during previous three months. After randomization into CBZ-CR or LTG + VPA, patients entered into eight-week titration phase (TP), followed by 52-week maintenance phase (MP). Median doses of CBZ-CR and LTG + VPA were 600 mg/day and 75 mg/day + 500 mg/day, respectively. Primary outcome measure was completion rate (CR), a proportion of patients who have completed the 60-week study as planned. Secondary efficacy measures included seizure-free rate (SFR) for 52-week of MP and time to first seizure (TTFS) during MP. RESULTS: Among 207 randomized patients, 202 underwent outcome analysis (104 in CBZ-CR, 98 in LTG + VPA). CR was 62.5% in CBZ-CR and 65.3% in LTG + VPA (p = 0.678). SFR during MP was higher in LTG + VPA (64.1%) than CBZ-CR (47.8%) (P = 0.034). TTFS was shorter with CBZ-CR (p = 0.041). Incidence of adverse effects (AEs) were 57.7% in CBZ-CR and 60.2% in LTG + VPA and premature drug withdrawal rates due to AEs were 12.5% and 7.1%, respectively, which were not significantly different. CONCLUSION: CR was comparable between LTG + VPA and CBZ-CR, however, both SFR for 52-week MP and TTFS during MP were in favor of LTG + VPA than CBZ-CR. The study suggested that LTG + VPA can be an option as initial drug regimen for untreated patients with partial seizures and/or GTCS except for women of reproductive age. PMID- 29324403 TI - Performance of Brain-Computer Interfacing Based on Tactile Selective Sensation and Motor Imagery. AB - A large proportion of users do not achieve adequate control using current non invasive brain-computer interfaces (BCIs). This issue has being coined "BCI Illiteracy" and is observed among different BCI modalities. Here, we compare the performance and the BCI-illiteracy rate of a tactile selective sensation (SS) and motor imagery (MI) BCI, for a large subject samples. We analyzed 80 experimental sessions from 57 subjects with two-class SS protocols. For SS, the group average performance was 79.8 +/- 10.6%, with 43 out of the 57 subjects (75.4%) exceeding the 70% BCI-illiteracy threshold for left- and right-hand SS discrimination. When compared with previous results, this tactile BCI outperformed all other tactile BCIs currently available. We also analyzed 63 experimental sessions from 43 subjects with two-class MI BCI protocols, where the group average performance was 77.2 +/- 13.3%, with 69.7% of the subjects exceeding the 70% performance threshold for left- and right-hand MI. For within-subject comparison, the 24 subjects who participated to both the SS and MI experiments, the BCI performance was superior with SS than MI especially in beta frequency band (p < 0.05), with enhanced R2 discriminative information in the somatosensory cortex for the SS modality. Both SS and MI showed a functional dissociation between lower alpha ([8 10] Hz) and upper alpha ([10 13] Hz) bands, with BCI performance significantly better in the upper alpha than the lower alpha (p < 0.05) band. In summary, we demonstrated that SS is a promising BCI modality with low BCI illiteracy issue and has great potential in practical applications reaching large population. PMID- 29324404 TI - Optimization-Based Contact Fault Alleviation in Deep Brain Stimulation Leads. AB - Deep brain stimulation (DBS) is a neurosurgical treatment in, e.g., Parkinson's Disease. Electrical stimulation in DBS is delivered to a certain target through electrodes implanted into the brain. Recent developments aiming at better stimulation target coverage and lesser side effects have led to an increase in the number of contacts in a DBS lead as well as higher hardware complexity. This paper proposes an optimization-based approach to alleviation of the fault impact on the resulting therapeutical effect in field steering DBS. Faulty contacts could be an issue given recent trends of increasing number of contacts in DBS leads. Hence, a fault detection/alleviation scheme, such as the one proposed in this paper, is necessary ensure resilience in the chronic stimulation. Two alternatives are considered and compared with the stimulation prior to the fault: one using higher amplitudes on the remaining contacts and another with alleviating contacts in the neighborhood of the faulty one. Satisfactory compensation for a faulty contact can be achieved in both ways. However, to designate alleviating contacts, a model-based optimization procedure is necessary. Results suggest that stimulating with more contacts yields configurations that are more robust to contact faults, though with reduced selectivity. PMID- 29324406 TI - A Novel Multi-Class EEG-Based Sleep Stage Classification System. AB - Sleep stage classification is one of the most critical steps in effective diagnosis and the treatment of sleep-related disorders. Visual inspection undertaken by sleep experts is a time-consuming and burdensome task. A computer assisted sleep stage classification system is thus essential for both sleep related disorders diagnosis and sleep monitoring. In this paper, we propose a system to classify the wake and sleep stages with high rates of sensitivity and specificity. The EEG signals of 25 subjects with suspected sleep-disordered breathing, and the EEG signals of 20 healthy subjects from three data sets are used. Every EEG epoch is decomposed into eight subband epochs each of which has a frequency band pertaining to one EEG rhythm (i.e., delta, theta, alpha, sigma, beta 1, beta 2, gamma 1, or gamma 2). Thirteen features are extracted from each subband epoch. Therefore, 104 features are totally obtained for every EEG epoch. The Kruskal-Wallis test is used to examine the significance of the features. Non significant features are discarded. The minimal-redundancy-maximal-relevance feature selection algorithm is then used to eliminate redundant and irrelevant features. The features selected are classified by a random forest classifier. To set the system parameters and to evaluate the system performance, nested 5-fold cross-validation and subject cross-validation are performed. The performance of our proposed system is evaluated for different multi-class classification problems. The minimum overall accuracy rates obtained are 95.31% and 86.64% for nested 5-fold and subject cross-validation, respectively. The system performance is promising in terms of the accuracy, sensitivity, and specificity rates compared with the ones of the state-of-the-art systems. The proposed system can be used in health care applications with the aim of improving sleep stage classification. PMID- 29324405 TI - Determination of Nerve Fiber Diameter Distribution From Compound Action Potential: A Continuous Approach. AB - When a signal is initiated in the nerve, it is transmitted along each nerve fiber via an action potential (called single fiber action potential (SFAP)) which travels with a velocity that is related with the diameter of the fiber. The additive superposition of SFAPs constitutes the compound action potential (CAP) of the nerve. The fiber diameter distribution (FDD) in the nerve can be computed from the CAP data by solving an inverse problem. This is usually achieved by dividing the fibers into a finite number of diameter groups and solve a corresponding linear system to optimize FDD. However, number of fibers in a nerve can be measured sometimes in thousands and it is possible to assume a continuous distribution for the fiber diameters which leads to a gradient optimization problem. In this paper, we have evaluated this continuous approach to the solution of the inverse problem. We have utilized an analytical function for SFAP and an assumed a polynomial form for FDD. The inverse problem involves the optimization of polynomial coefficients to obtain the best estimate for the FDD. We have observed that an eighth order polynomial for FDD can capture both unimodal and bimodal fiber distributions present in vivo, even in case of noisy CAP data. The assumed FDD distribution regularizes the ill-conditioned inverse problem and produces good results. PMID- 29324407 TI - Head Motion and Head Gesture-Based Robot Control: A Usability Study. AB - The assistive robot system adaptive head motion control for user-friendly support (AMiCUS) has been developed to increase the autonomy of motion impaired people. The six degrees of freedom robot arm with gripper is controlled with head motion and head gestures only, so especially tetraplegics benefit from collaboration with AMiCUS. In this paper, a usability study with a total number of 30 subjects was conducted to validate the AMiCUS interaction technology and design. 24 able bodied subjects of demographically diverse groups and 6 tetraplegics participated in this paper. All subjects performed different pick and place tasks by controlling AMiCUS. The evaluation of the interaction design was carried out subjectively with a questionnaire as well as objectively by measurement of time, completion rate, and number of trials for correct head gesture performance. The influence of several factors like age, sex, motion impairment, and previous experience on head motion-based human-robot interaction was analyzed. The interaction design has been proven successful in laboratory environment and assessed overall positive by the subjects. The results of the presented paper confirm the usability of the assistive robot AMiCUS. AMiCUS has the potential to benefit tetraplegics by improving their independence in activities of daily living and adapted workplaces. PMID- 29324408 TI - Assessing Dynamic Balance Performance During Exergaming Based on Speed and Curvature of Body Movements. AB - Improving balance performance among the elderly is of utmost importance because of the increasing number of injuries and fatalities caused by fall incidences. Digital games controlled by body movements (exergames) have been proposed as a way to improve balance among older people. However, the assessment of balance performance in real-time during exergaming remains a challenging task. This assessment could be used to provide instantaneous feedback and automatically adjust the exergame difficulty. Such features could potentially increase the motivation of the player, thus augmenting the effectiveness of exergames. As clear differences in balance performance have been identified between older and younger people, distinguishing between older and younger adults can help identifying measures of balance performance. We used generalized linear models to investigate whether the assessment of balance performance based on movement speed can be improved by incorporating curvature of the movement trajectory into the analysis. Indeed, our results indicated that curvature improves the performance of the models. Five-fold cross validation indicated that our method is promising for the assessment of balance performance in real-time by showing more than 90% classification accuracy. Finally, this method could be valuable not only for exergaming, but also for real-time assessment of body movements in sports, rehabilitation, and medicine. PMID- 29324409 TI - Assessment of Spasticity by a Pendulum Test in SCI Patients Who Exercise FES Cycling or Receive Only Conventional Therapy. AB - Increased muscle tone and exaggerated tendon reflexes characterize most of the individuals after a spinal cord injury (SCI). We estimated seven parameters from the pendulum test and used them to compare with the Ashworth modified scale of spasticity grades in three populations (retrospective study) to assess their spasticity. Three ASIA B SCI patients who exercised on a stationary FES bicycle formed group F, six ASIA B SCI patients who received only conventional therapy were in the group C, and six healthy individuals constituted the group H. The parameters from the pendulum test were used to form a single measure, termed the PT score, for each subject. The pendulum test parameters show differences between the F and C groups, but not between the F and H groups, however, statistical significance was limited due to the small study size. Results show a small deviation from the mean for all parameters in the F group and substantial deviations from the mean for the parameters in the C group. PT scores show significant differences between the F and C groups and the C and H groups and no differences between the F and C groups. The correlation between the PT score and Ashworth score was 0.88. PMID- 29324410 TI - Decoding Motor Unit Activity From Forearm Muscles: Perspectives for Myoelectric Control. AB - We prove the feasibility of decomposing high density surface EMG signals from forearm muscles in non-isometric wrist motor tasks of normally limbed and limb deficient individuals with the perspective of using the decoded neural information for prosthesis control. For this purpose, we recorded surface EMG signals during motions of three degrees of freedom of the wrist in seven normally limbed subjects and two patients with limb deficiency. The signals were decomposed into individual motor unit activity with a convolutive blind source separation algorithm. On average, for each subject, 16 +/- 7 motor units were identified per motor task. The discharge timings of these motor units were estimated with an accuracy > 85%. Moreover, the activity of 6 +/- 5 motor units per motor task was consistently detected in all repetitions of the same task. The joint angle at which motor units were first identified was 62.5 +/- 26.4% of the range of motion, indicating a prevalence in the identification of high threshold motor units. These findings prove the feasibility of accurate identification of the neural drive to muscles in contractions relevant for myoelectric control, allowing the development of a new generation of myocontrol methods based on motor unit spike trains. PMID- 29324411 TI - Virtual Activities of Daily Living for Recovery of Upper Extremity Motor Function. AB - A study was conducted to investigate the effectiveness of virtual activities of daily living (ADL) practice using the SaeboVR software system for the recovery of upper extremity (UE) motor function following stroke. The system employs Kinect sensor-based tracking to translate human UE motion into the anatomical pose of the arm of the patient's avatar within a virtual environment, creating a virtual presence within a simulated task space. Patients gain mastery of 12 different integrated activities while traversing a metaphorical "road to recovery" that includes thematically linked levels and therapist-selected difficulty settings. Clinical trials were conducted under the study named Virtual Occupational Therapy Application. A total of 15 chronic phase stroke survivors completed a protocol involving three sessions per week over eight weeks, during which they engaged in repetitive task practice through performance of the virtual ADLs. Results show a clinically important improvement and statistically significant difference in Fugl Meyer UE assessment scores in the study population of chronic stroke survivors over the eight-week interventional period compared with a non-interventional control period of equivalent duration. Statistically significant and clinically important improvements are also found in the wolf motor function test scores. These results provide new evidence for the use of virtual ADL practice as a tool for UE therapy for stroke patients. Limitations of the study include non-blinded assessments and the possibility of selection and/or attrition bias. PMID- 29324412 TI - Implicit Negative Sub-Categorization and Sink Diversion for Object Detection. AB - In this paper, we focus on improving the proposal classification stage in the object detection task and present implicit negative sub-categorization and sink diversion to lift the performance by strengthening loss function in this stage. First, based on the observation that the "background" class is generally very diverse and thus challenging to be handled as a single indiscriminative class in existing state-of-the-art methods, we propose to divide the background category into multiple implicit sub-categories to explicitly differentiate diverse patterns within it. Second, since the ground truth class inevitably has low-value probability scores for certain images, we propose to add a "sink" class and divert the probabilities of wrong classes to this class when necessary, such that the ground truth label will still have a higher probability than other wrong classes even though it has low probability output. Additionally, we propose to use dilated convolution, which is widely used in the semantic segmentation task, for efficient and valuable context information extraction. Extensive experiments on PASCAL VOC 2007 and 2012 data sets show that our proposed methods based on faster R-CNN implementation can achieve state-of-the-art mAPs, i.e., 84.1%, 82.6%, respectively, and obtain 2.5% improvement on ILSVRC DET compared with that of ResNet. PMID- 29324413 TI - Skeleton-Based Human Action Recognition With Global Context-Aware Attention LSTM Networks. AB - Human action recognition in 3D skeleton sequences has attracted a lot of research attention. Recently, long short-term memory (LSTM) networks have shown promising performance in this task due to their strengths in modeling the dependencies and dynamics in sequential data. As not all skeletal joints are informative for action recognition, and the irrelevant joints often bring noise which can degrade the performance, we need to pay more attention to the informative ones. However, the original LSTM network does not have explicit attention ability. In this paper, we propose a new class of LSTM network, global context-aware attention LSTM, for skeleton-based action recognition, which is capable of selectively focusing on the informative joints in each frame by using a global context memory cell. To further improve the attention capability, we also introduce a recurrent attention mechanism, with which the attention performance of our network can be enhanced progressively. Besides, a two-stream framework, which leverages coarse grained attention and fine-grained attention, is also introduced. The proposed method achieves state-of-the-art performance on five challenging datasets for skeleton-based action recognition. PMID- 29324414 TI - No Reference Quality Assessment for Screen Content Images With Both Local and Global Feature Representation. AB - In this paper, we propose a novel no reference quality assessment method by incorporating statistical luminance and texture features (NRLT) for screen content images (SCIs) with both local and global feature representation. The proposed method is designed inspired by the perceptual property of the human visual system (HVS) that the HVS is sensitive to luminance change and texture information for image perception. In the proposed method, we first calculate the luminance map through the local normalization, which is further used to extract the statistical luminance features in global scope. Second, inspired by existing studies from neuroscience that high-order derivatives can capture image texture, we adopt four filters with different directions to compute gradient maps from the luminance map. These gradient maps are then used to extract the second-order derivatives by local binary pattern. We further extract the texture feature by the histogram of high-order derivatives in global scope. Finally, support vector regression is applied to train the mapping function from quality-aware features to subjective ratings. Experimental results on the public large-scale SCI database show that the proposed NRLT can achieve better performance in predicting the visual quality of SCIs than relevant existing methods, even including some full reference visual quality assessment methods. PMID- 29324415 TI - Convolutional Sparse Coding for RGB+NIR Imaging. AB - Emerging sensor designs increasingly rely on novel color filter arrays (CFAs) to sample the incident spectrum in unconventional ways. In particular, capturing a near-infrared (NIR) channel along with conventional RGB color is an exciting new imaging modality. RGB+NIR sensing has broad applications in computational photography, such as low-light denoising, it has applications in computer vision, such as facial recognition and tracking, and it paves the way toward low-cost single-sensor RGB and depth imaging using structured illumination. However, cost effective commercial CFAs suffer from severe spectral cross talk. This cross talk represents a major challenge in high-quality RGB+NIR imaging, rendering existing spatially multiplexed sensor designs impractical. In this work, we introduce a new approach to RGB+NIR image reconstruction using learned convolutional sparse priors. We demonstrate high-quality color and NIR imaging for challenging scenes, even including high-frequency structured NIR illumination. The effectiveness of the proposed method is validated on a large data set of experimental captures, and simulated benchmark results which demonstrate that this work achieves unprecedented reconstruction quality. PMID- 29324416 TI - Unsupervised Deep Hashing With Pseudo Labels for Scalable Image Retrieval. AB - In order to achieve efficient similarity searching, hash functions are designed to encode images into low-dimensional binary codes with the constraint that similar features will have a short distance in the projected Hamming space. Recently, deep learning-based methods have become more popular, and outperform traditional non-deep methods. However, without label information, most state-of the-art unsupervised deep hashing (DH) algorithms suffer from severe performance degradation for unsupervised scenarios. One of the main reasons is that the ad hoc encoding process cannot properly capture the visual feature distribution. In this paper, we propose a novel unsupervised framework that has two main contributions: 1) we convert the unsupervised DH model into supervised by discovering pseudo labels; 2) the framework unifies likelihood maximization, mutual information maximization, and quantization error minimization so that the pseudo labels can maximumly preserve the distribution of visual features. Extensive experiments on three popular data sets demonstrate the advantages of the proposed method, which leads to significant performance improvement over the state-of-the-art unsupervised hashing algorithms. PMID- 29324417 TI - Robust Object Co-Segmentation Using Background Prior. AB - Given a set of images that contain objects from a common category, object co segmentation aims at automatically discovering and segmenting such common objects from each image. During the past few years, object co-segmentation has received great attention in the computer vision community. However, the existing approaches are usually designed with misleading assumptions, unscalable priors, or subjective computational models, which do not have sufficient robustness for dealing with complex and unconstrained real-world image contents. This paper proposes a novel two-stage co-segmentation framework, mainly for addressing the robustness issue. In the proposed framework, we first introduce the concept of union background and use it to improve the robustness for suppressing the image backgrounds contained by the given image groups. Then, we also weaken the requirement for the strong prior knowledge by using the background prior instead. This can improve the robustness when scaling up for the unconstrained image contents. Based on the weak background prior, we propose a novel MR-SGS model, i.e., manifold ranking with the self-learned graph structure, which can infer suitable graph structures in a data-driven manner rather than building the fixed graph structure relying on the subjective design. Such capacity is critical for further improving the robustness in inferring the foreground/background probability of each image pixel. Comprehensive experiments and comparisons with other state-of-the-art approaches can demonstrate the effectiveness of the proposed work. PMID- 29324418 TI - NIQSV+: A No-Reference Synthesized View Quality Assessment Metric. AB - Benefiting from multi-view video plus depth and depth-image-based-rendering technologies, only limited views of a real 3-D scene need to be captured, compressed, and transmitted. However, the quality assessment of synthesized views is very challenging, since some new types of distortions, which are inherently different from the texture coding errors, are inevitably produced by view synthesis and depth map compression, and the corresponding original views (reference views) are usually not available. Thus the full-reference quality metrics cannot be used for synthesized views. In this paper, we propose a novel no-reference image quality assessment method for 3-D synthesized views (called NIQSV+). This blind metric can evaluate the quality of synthesized views by measuring the typical synthesis distortions: blurry regions, black holes, and stretching, with access to neither the reference image nor the depth map. To evaluate the performance of the proposed method, we compare it with four full reference 3-D (synthesized view dedicated) metrics, five full-reference 2-D metrics, and three no-reference 2-D metrics. In terms of their correlations with subjective scores, our experimental results show that the proposed no-reference metric approaches the best of the state-of-the-art full reference and no reference 3-D metrics; and outperforms the widely used no-reference and full reference 2-D metrics significantly. In terms of its approximation of human ranking, the proposed metric achieves the best performance in the experimental test. PMID- 29324419 TI - Visual Saliency Detection Using Spatiotemporal Decomposition. AB - We propose a novel technique for detection of visual saliency in dynamic video based on video decomposition. The decomposition obtains the sparse features in a particular orientation by exploiting the spatiotemporal discontinuities present in a video cube. A weighted sum of the sparse features along three orthogonal directions determines the salient regions in the video cubes. The weights computed using the frame correlation along three directions are based on the characteristic of human visual system that identifies the sparsest feature as the most salient feature in a video. Unlike the existing methods, which detect the salient region as blob, the proposed approach detects the exact boundaries of salient region with minimum false detection. The experimental results confirm that the detected salient regions of a video closely resemble the salient regions detected by actual tracking of human eyes. The algorithm is tested on different types of video contents and compared with the several state-of-the-art methods to establish the effectiveness of the proposed method. PMID- 29324420 TI - Evaluation of Hierarchical Watersheds. AB - This paper aims to understand the practical features of hierarchies of morphological segmentations, namely the quasi-flat zones hierarchy and watershed hierarchies, and to evaluate their potential in the context of natural image analysis. We propose a novel evaluation framework for the hierarchies of partitions designed to capture various aspects of those representations: precision of their regions and contours, possibility to extract high quality horizontal cuts and optimal non-horizontal cuts for image segmentation, and the ease of finding a set of regions representing a semantic object. This framework is used to assess and to optimize hierarchies with respect to the possible pre- and post-processing steps. We show that, used in conjunction with a state-of-the art contour detector, watershed hierarchies are competitive with the complex state-of-the-art methods for hierarchy construction. In particular, the proposed framework allows us to identify a watershed hierarchy based on a novel extinction value, the number of parent nodes that outperforms the other hierarchies of morphological segmentations. This coupled with the fact that watershed hierarchies satisfy clear global optimality properties and can be efficiently computed on large data, make them valuable candidates for various computer vision tasks. PMID- 29324421 TI - Analysis on the Effect of Sensor Views in Image Reconstruction Produced by Optical Tomography System Using Charge-Coupled Device. AB - Optical tomography (OPT) is a method to capture a cross-sectional image based on the data obtained by sensors, distributed around the periphery of the analyzed system. This system is based on the measurement of the final light attenuation or absorption of radiation after crossing the measured objects. The number of sensor views will affect the results of image reconstruction, where the high number of sensor views per projection will give a high image quality. This research presents an application of charge-coupled device linear sensor and laser diode in an OPT system. Experiments in detecting solid and transparent objects in crystal clear water were conducted. Two numbers of sensors views, 160 and 320 views are evaluated in this research in reconstructing the images. The image reconstruction algorithms used were filtered images of linear back projection algorithms. Analysis on comparing the simulation and experiments image results shows that, with 320 image views giving less area error than 160 views. This suggests that high image view resulted in the high resolution of image reconstruction. PMID- 29324422 TI - Assimilation of Biophysical Neuronal Dynamics in Neuromorphic VLSI. AB - Representing the biophysics of neuronal dynamics and behavior offers a principled analysis-by-synthesis approach toward understanding mechanisms of nervous system functions. We report on a set of procedures assimilating and emulating neurobiological data on a neuromorphic very large scale integrated (VLSI) circuit. The analog VLSI chip, NeuroDyn, features 384 digitally programmable parameters specifying for 4 generalized Hodgkin-Huxley neurons coupled through 12 conductance-based chemical synapses. The parameters also describe reversal potentials, maximal conductances, and spline regressed kinetic functions for ion channel gating variables. In one set of experiments, we assimilated membrane potential recorded from one of the neurons on the chip to the model structure upon which NeuroDyn was designed using the known current input sequence. We arrived at the programmed parameters except for model errors due to analog imperfections in the chip fabrication. In a related set of experiments, we replicated songbird individual neuron dynamics on NeuroDyn by estimating and configuring parameters extracted using data assimilation from intracellular neural recordings. Faithful emulation of detailed biophysical neural dynamics will enable the use of NeuroDyn as a tool to probe electrical and molecular properties of functional neural circuits. Neuroscience applications include studying the relationship between molecular properties of neurons and the emergence of different spike patterns or different brain behaviors. Clinical applications include studying and predicting effects of neuromodulators or neurodegenerative diseases on ion channel kinetics. PMID- 29324423 TI - Effects of Omega-3 Fatty Acids Against Chemotherapy-induced Mucositis: A Double blind Randomized Clinical Trial. AB - OBJECTIVE: This double-blind randomized clinical trial evaluates the ef cacy and route of administration of omega-3 fatty acids for the prevention and treatment of oral mucositis in patients undergoing che- motherapy in Iranian hospitals. MATERIALS AND METHODS: Sixty patients developing World Health Organization (WHO) grade 1 oral mucositis were randomized to the omega-3 fatty acid (n=30) or placebo (n=30) group. Mucositis was assessed according to the WHO, Western Consortium for Cancer Nursing Research, and Oral Mucositis Weekly Questionnaire cri- teria at baseline and rst, second, and third weeks of chemotherapy un- til mucositis resolved. RESULTS: Differences in the severity of mucositis between the omega-3 and placebo groups in the rst, second, and third weeks of treatment based on the WHO criteria were noted. This study showed that patients in the omega-3 group experienced less pain during the rst, second, and third weeks of treatment. CONCLUSIONS: Omega-3 fatty acids are a safe, effective method for preventing and treating oral mucositis in patients receiving mucotoxic cancer chemotherapy. PMID- 29324424 TI - Larval Therapy for Chronic Cutaneous Ulcers: Historical Review and Future Perspectives. AB - Cutaneous ulcers tend to become chronic and have a profound impact on quality of life. These wounds may become infected and lead to greater morbidity and even mortality. In the past, larvae (ie, maggots) of certain common flies (Lucilia sericata and Lucilia cuprina) were considered useful in ulcer management because they only remove necrotic tissue while promoting healthy tissue in the wound bed, thus helping wounds heal faster. Recently, maggots from several other fly species (Calliphora vicina, Calliphora vomitoria, Phormia regina, Chrysomya albiceps, Sarcophaga carnaria, and Hermetia illucens) have been shown in vitro to possess characteristics (ie, debridement efficacy and putative antimicrobial potentialities) that make them suitable candidates for possible use in clinical practice. This review presents a historical analysis of larval debridement and speculates future directions based on the literature presented. PMID- 29324425 TI - Comparison of a Saline-coupled Bipolar Sealer Versus Traditional Electrosurgery in a Porcine Model of Chronic Wound Healing. AB - OBJECTIVE: This study examines the healing dynamics of in vivo porcine muscle tissue wounds hemostatically treated with a saline-coupled bipolar tissue sealer (SCBS) compared with traditional electrosurgical (ES) coagulation. MATERIALS AND METHODS: Six cutaneous incisions were created on the dorsum of 28 adult male Yorkshire swine. The underlying muscle tissue was incised with a cold scalpel then treated with either SCBS (at 170 W) or traditional ES (at Coag 45 W). Time to hemostasis was recorded. Animals were humanely euthanized at day 2 and weeks 2, 3, or 8; treated tissue was harvested for histopathological evaluation. RESULTS: After 8 weeks, the extent of wound healing was similar between SCBS and ES. Both devices controlled bleeding effectively; however, SCBS-treated wounds exhibited a greater depth of thermal effect over the first 3 weeks despite a shorter treatment time. Wounds treated with SCBS demonstrated fewer inflammatory markers at early time points but healed more slowly, with scores that lagged behind ES for collagen deposition, fibrous tissue maturity, extracellular matrix, and stage of healing. Myofiber regeneration notably increased in SCBS-treated wounds at weeks 2, 3, and 8. By the end of the 8-week recovery period, there were no significant differences in healing parameters between the 2 groups. CONCLUSIONS: Overall, both devices elicited similar progression of healing by 8 weeks. The SCBS produced a deeper thermal effect in a shorter treatment time and improved myofiber regeneration compared with ES and had an equivalent overall course of healing. PMID- 29324426 TI - A Sweet Solution: The Use of Medical-grade Honey on Oral Mucositis in the Pediatric Oncology Patient. AB - INTRODUCTION: Pediatric patients develop mucositis when receiving treatments such as chemotherapy and radiation; the most common and sensitive is oral mucositis. Mouth rinses containing antimicrobial, antihistamine, and analgesic medications are the mainstay for pediatric patients; however, patients often refuse these rinses due to the taste or texture. Also, patients under 1 year of age are unable to use these products. OBJECTIVE: Herein, the improvement of oral mucositis with standard oral care and additional use of active Leptospermum honey in pediatric oncology patients after chemotherapy is demonstrated. MATERIALS AND METHODS: Patients received oral care every 4 hours followed by application of the honey paste 3 times daily. The honey paste was applied with a sponge swab to coat the mouth. Patients either swished and spit or had excess honey suctioned out. At completion of this evaluation, the honey treatment was used in 10 pediatric oncology patients between the ages of 9 months and 17 years. RESULTS: The Leptospermum honey paste was easy to apply and was well received by all patients. Healing was observed within 3 days, and patients in all cases reported decreases in pain. Decreased wounds and bleeding were evident in all cases within 5 days. CONCLUSIONS: Leptospermum honey paste proved to be effective in all participating patients. PMID- 29324427 TI - Lemons in the Arizona Sunshine: The Effects of Furocoumarins Leading to Phytophotodermatitis and Burn-like Injuries. AB - INTRODUCTION: Phytophototoxic dermatitis is a strong phototoxic reaction to ultraviolet A (UV-A) radiation exposure after cutaneous contact with citrus fruit containing furocoumarins, leading to skin injury. At the Arizona Burn Center (Phoenix, AZ), the majority of these injuries are managed in the outpatient setting. CASE REPORT: The authors present a pediatric admission for burn-like injuries following prolonged cutaneous exposure to lemons while playing in the Arizona sunshine. A 7-year-old girl playing in her backyard squeezed lemon juice onto her skin while in the hot Arizona sunshine; within 24 hours, the child experienced pain, erythema, and blistering to multiple areas of her skin. She was admitted to the authors' burn center for wound care and pain control. She had scattered first-degree and second-degree burn-like lesions to her face, neck, and chest as well as bilateral forearms, hands, lower extremities, and feet. After blister debridement, appropriate dressing care, and pain medication, the patient was discharged home after 4 days of hospitalization with appropriate clinical follow-up. CONCLUSIONS: Burn-like lesions caused by furocoumarins after cutaneous absorption and UV-A exposure are known clinical entities in Arizona. The sequential progression from erythema to blisters equivalent to second-degree burn like lesions to cutaneous hyperpigmentation is a well-described clinical triad. Meticulous wound care and pain control for the treatment of these burn-like lesions are essential as is the need for the wound care specialist to be well versed on this topic to quickly identify the etiology of the injury, thereby avoiding misdiagnosing the patient with nonaccidental traumatic injuries. PMID- 29324428 TI - Malignant Transformation of a Site of Prior Diabetic Foot Ulceration to Verrucous Carcinoma: A Case Report. AB - The case of a 62-year-old Caucasian man with type 1 diabetes who developed malignant transformation of an area of prior diabetic foot ulceration (DFU) is reported. He had significant hallux valgus deformity, multiple episodes of healing and breakdown, and eventual transformation to verrucous carcinoma (VC). This case report highlights the malignant transformation of a site of previous DFU to VC, which, to the best of the authors' knowledge, has not yet been described in the literature. There has been little research performed that examines VC in the diabetic population. This case report also highlights the importance of clinical suspicion for malignant transformation as well as the use of subsequent biopsy when necessary. PMID- 29324429 TI - A Pilot Clinical Study of a Safe and Efficient Stool Management System in Patients With Fecal Incontinence. AB - INTRODUCTION: According to the Wound Ostomy Continence Nursing Society's Continence Committee, the incidence of fecal incontinence (FI) can occur from 18% to 37% in an acute care setting. A stool management system has been designed to manage FI in bedridden patients and has proven to be efficacious in wound management and prevention and infection control, provide safer patient outcomes, and enhance ease of nursing. OBJECTIVE: This study aims to evaluate the safety and efficacy of an intrarectal device intended to manage fecal incontinence in hospitalized bedridden patients through nonclinical and clinical testings. MATERIALS AND METHODS: An uncontrolled pilot evaluation in 20 patients was performed as part of a value-based purchasing evaluation at a tertiary hospital in Tucson, Arizona, to assess safety and efficacy in infection control and wound care. The company-provided engineering bench-top studies of insertion and withdrawal forces of the device versus existing intrarectal balloon catheters also were evaluated. RESULTS: The device has broader patient eligibility and potentially allows 3 times more FI patients to be managed safely. It has lower intrarectal pressures compared with indwelling balloon catheters. CONCLUSIONS: This study, along with pilot clinical findings, suggests that this technology minimizes the pressure exerted on the rectal wall. There were significantly fewer forces against the anorectal mucosa compared with the cuff-based catheter during insertion, withdrawal, and accidental expulsion. PMID- 29324430 TI - A Prospective, Multicenter Study to Compare a Disposable, High-fluid Capacity Underpad to Nonpermeable, Disposable, Reusable Containment Products on Incontinence-associated Dermatitis Rates Among Skilled Nursing Facility Residents. AB - Due to the high prevalence of incontinence among skilled nursing facility (SNF) residents, incontinence-associated derma- titis (IAD) is a common occurrence. In addition, facility staff may mistakenly identify IAD as a pressure injury. A prospective, descriptive, multicenter study was conducted in 3 Connecticut facilities to evaluate the effect of substituting a disposable, high- uid capacity underpad for nonpermeable disposable and reusable containment products on the rate of IADs. Residents with and without IAD but with high IAD risk scores who were bed- or chairbound or ambulatory and used disposable nonpermeable briefs and underpads or reusable, laundered containment products when in bed longer than 2 hours were randomly enrolled and observed for a 4-week period. Facility staff were trained on the importance of differentiating between IAD and pressure injury; they substituted the study product (a disposable, high- uid capacity underpad) for all previously used containment products. Patient risk for IAD and skin condition were assessed using the Perineal Assessment Tool (PAT) and the Skin Condition Assessment Tool (SAT), respectively, at 5 time points: baseline, week 1, week 2, week 3, and week 4. The PAT is a 4-item instrument based conceptually on the 4 determinants in perineal skin breakdown; subscales are rated from 1 (least risk) to 3 (most risk), with a total score range of 4 to 12. The SAT is used to evaluate IAD speci cally, generating a cumulative severity score ranging from 0 to 3 on area of skin affected, degree of redness, and depth of ero- sion. Final data analysis was conducted on 40 residents: 25 had IAD present at enrollment and 15 were deemed high risk for developing IAD. Mean SAT scores in the 25 participants with IAD decreased with signi cance at week 1 (P = .0016), week 2 (P = .0023), week 3 (P = .0005), and week 4 (P <.0001). Baseline IAD severity scores averaged 3.3 +/- 1.7. Overall IAD average severity scores in this group decreased from baseline mean of 3.3 +/- 1.7 to 0.7 +/- 1.4 at week 4 (P <.001). The 15 participants with intact, nondamaged skin at enrollment did not develop IAD from baseline to week 4, and PAT score risk levels decreased from high (7 or greater) to low (6 or less) as a result of a speci c reduction in the duration of irritant exposure category for 11 (73%) of this group of participants by week 4. PAT risk level scores for both IAD and non-IAD participants at baseline averaged 8.1 +/- 1.4; after 4 weeks, they averaged 7.0 +/- 1.5). Although change was not significant, results suggest the use of a disposable, high- uid capacity underpad improved SAT scores over time. IAD rates increased in each facility, but pressure injury incidence rates decreased for the study duration. Replacing a nonpermeable, reusable containment product with a disposable, high- uid capacity underpad when SNF residents are in bed longer than 2 hours may impact the severity of IAD and reduce its incidence. The inverse impact reported on IAD and pressure injury incidence rates 1 month after training suggest study educational efforts had a short-lasting effect. Future research is indicated to determine the most effective method to improve nurses' ability to identify and distinguish IAD from pressure injury in the SNF setting. PMID- 29324431 TI - A Descriptive, Qualitative Study to Assess Patient Experiences Following Stoma Reversal After Rectal Cancer Surgery. AB - Standard surgical treatment for patients operated for rectal cancer is abdominoperineal excision of the tumor result- ing in a permanent colostomy or an anterior resection, often with construction of a temporary loop ileostomy. Both options impact bowel function. Living with a permanent colostomy has been studied in depth, but knowledge is limited about patients' experiences living with a resected rectum after stoma reversal and how it affects daily life. A qualitative study was conducted to describe the rst 4 to 6 weeks after reversal of a temporary loop ileostomy due to rectal cancer. Patients from 1 university hospital and 1 county hospital in Sweden were recruited by telephone and were eligible to participate in the study if they: 1) had been operated for rectal cancer with an anterior resection and a temporary loop ileostomy that had been reversed; 2) were >18 years of age, fully oriented, and understood the Swedish language; and 3) had a postoperative course without complications. Interviews were conducted be- tween December 2013 and June 2015 either at the hospital or at the participants' homes. Participants were asked to narrate their experiences since stoma reversal. Probing open-ended questions were used to stimulate narration and clarify and enhance understanding. The interviews were recorded, transcribed verbatim, and analyzed us- ing thematic content analysis. The 16 participants included 9 women and 7 men (median age 67 years). Three (3) main themes emerged: Life being controlled by the altered bowel function, with the subthemes loss of control over bowel function, uncertainty regarding bowel function, and being limited in social life; Striving to regain control over the bowel, with the subthemes using ability and knowledge, social support, and being grateful and hopeful; and A desire to be normal, with subthemes getting rid of the stoma and restoration of body image. Patients experienced severe bowel function problems, including increased bowel movement frequency and inability to anticipate or trust bowel function after stoma reversal. Outwardly, patients experienced a signi cant improvement in body image but continued to struggle with suboptimal bowel function. Patients needed reassurance that their bowel symptoms were normal. Participants strove to regain control over bowel function using various strategies, including what they had learned about diet and medication before stoma reversal and by trying to defy the restrictions of their new normal. They felt they were ghting to regain bowel control without help from health care professionals. In order to cope with altered bowel function, they needed the support of family and friends. The results suggest that, following stoma reversal, patients need information about available treatments to address their symptoms and require regular follow- up visits to evaluate and address functional results. PMID- 29324432 TI - An Overview of Clinical and Health Economic Evidence Regarding Porcine Small Intestine Submucosa Extracellular Matrix in the Management of Chronic Wounds and Burns. AB - Small intestine submucosa (SIS) has been extensively evaluated in preclinical models and developed into commercially produced medical technologies intended for use in several different indications. The SIS extracellular matrix cellular and/or tissue-based product is a commercially available, porcine-derived SIS dressing. The purpose of this review was to consider the role of the SIS dressing in the management of chronic wounds and burns. Using a variety of search terms from the literature to describe the SIS dressing, the following databases were searched: PubMed, York Centre for Reviews and Dissemination database, National Health Service Economic Evaluation database, Health Technology Assessment database, and the Cochrane Library. The search identified 78 studies of which 21 met the inclusion/exclusion criteria. Of those, 14 involved chronic wounds, 3 described the management of burn wounds, and 4 were economic evaluations. The wide variety of comparative treatments and outcomes studied precluded the use of meta-analysis techniques. Study results show SIS dressings may improve outcomes in chronic wounds and cost less than several alternative biological wound treatments. Studies to examine their efficacy in burn wound management are warranted. PMID- 29324433 TI - Optoelectronic figure of merit of a metal nanoparticle-quantum dot (MNP-QD) hybrid molecule for assessing its suitability for sensing applications. AB - Recently, many have studied various configurations of metal nanoparticle-quantum dot (MNP-QD) hybrid molecules based on different metals and tunable parameters. In this paper, we aim to incite the interest in using MNP-QD nanohybrids, which possess sensing capabilities superior to those of the individual constituents, for sensing applications that rely on scattered light. When assessing whether a given MNP-QD configuration is suited for an application, sometimes it is hard to assess the pros and cons of a given configuration against other candidates. Here we propose a simple, elegant relative figure of merit (RFoM), which focuses on maximizing the scattered intensity and the refractive index sensitivity of the nanohybrid, to rank the suitability of viable MNP-QD configurations for a particular sensing application. We use the proposed RFoM to analyse the optical spectra of noble, transition, post transition and alkali metal based MNP-QD nanohybrids using the representative metals Au, Ag, Cu, Al and Na, adopting a generalized nonlocal optical response (GNOR) method based cavity QED approach. Based on our observations, we suggest how the usage of MNP-QD nanohybrids could improve the conventionally studied tumour targeting applications. Moreover, we propose potential substitutes for noble metals conventionally considered for MNP QD nanohybrids. PMID- 29324434 TI - Room temperature synthesis of ReS2 through aqueous perrhenate sulfidation. AB - In this study, a direct sulfidation reaction of ammonium perrhenate (NH4ReO4) leading to a synthesis of rhenium disulfide (ReS2) is demonstrated. These findings reveal the first example of a simplistic bottom-up approach to the chemical synthesis of crystalline ReS2. The reaction presented here takes place at room temperature, in an ambient and solvent-free environment and without the necessity of a catalyst. The atomic composition and structure of the as synthesized product were characterized using several analysis techniques including energy dispersive x-ray spectroscopy, x-ray photoelectron spectroscopy, x-ray diffraction, transmission electron microscopy, Raman spectroscopy, thermogravimetric analysis and differential scanning calorimetry. The results indicated the formation of a lower symmetry (1T') ReS2 with a low degree of layer stacking. PMID- 29324435 TI - Intermediate-valence state of the Sm and Eu in SmB6 and EuCu2Si2: neutron spectroscopy data and analysis. AB - Magnetic neutron scattering data for Sm (SmB6, Sm(Y)S) and Eu (EuCu2Si2-x Ge x ) intermediate-valence compounds have been analysed in terms of a generalized model of the intermediate-radius exciton. Special attention is paid to the correlation between the average ion's valence and parameters of the low-energy excitation in the neutron spectra, such as the resonance mode, including its magnetic form factor. Along with specific features of the formation of the intermediate-valence state for Sm and Eu ions, common physical mechanisms have been revealed for systems based on these elements from the middle of the rare-earth series. A consistent description of the existing experimental data has been obtained by using the concept of a loosely bound hole for the Eu f-electron shell in the intermediate-valence state, in analogy with the previously established loosely bound electron model for the Sm ion. PMID- 29324436 TI - Field effect transistors and phototransistors based upon p-type solution processed PbS nanowires. AB - We demonstrate the fabrication of solution processed highly crystalline p-type PbS nanowires via the oriented attachment of nanoparticles. The analysis of single nanowire field effect transistor (FET) devices revealed a hole conduction behaviour with average mobilities greater than 30 cm2 V-1 s-1, which is an order of magnitude higher than that reported to date for p-type PbS colloidal nanowires. We have investigated the response of the FETs to near-infrared light excitation and show herein that the nanowires exhibited gate-dependent photo conductivities, enabling us to tune the device performances. The responsivity was found to be greater than 104 A W-1 together with a detectivity of 1013 Jones, which benefits from a photogating effect occurring at negative gate voltages. These encouraging detection parameters are accompanied by relatively short switching times of 15 ms at positive gate voltages, resulting from a combination of the standard photoconduction and the high crystallinity of the nanowires. Collectively, these results indicate that solution-processed PbS nanowires are promising nanomaterials for infrared photodetectors as well as p-type nanowire FETs. PMID- 29324437 TI - Performance of a high-resolution depth-encoding PET detector module using linearly-graded SiPM arrays. AB - The goal of this study was to exploit the excellent spatial resolution characteristics of a position-sensitive silicon photomultiplier (SiPM) and develop a high-resolution depth-of-interaction (DOI) encoding positron emission tomography (PET) detector module. The detector consists of a 30 * 30 array of 0.445 * 0.445 * 20 mm3 polished LYSO crystals coupled to two 15.5 * 15.5 mm2 linearly-graded SiPM (LG-SiPM) arrays at both ends. The flood histograms show that all the crystals in the LYSO array can be resolved. The energy resolution, the coincidence timing resolution and the DOI resolution were 21.8 +/- 5.8%, 1.23 +/- 0.10 ns and 3.8 +/- 1.2 mm, respectively, at a temperature of -10 degrees C and a bias voltage of 35.0 V. The performance did not degrade significantly for event rates of up to 130 000 counts s-1. This detector represents an attractive option for small-bore PET scanner designs that simultaneously emphasize high spatial resolution and high detection efficiency, important, for example, in preclinical imaging of the rodent brain with neuroreceptor ligands. PMID- 29324438 TI - An improved ring removal procedure for in-line x-ray phase contrast tomography. AB - The suppression of ring artifacts in x-ray computed tomography (CT) is a required step in practical applications; it can be addressed by introducing refined digital low pass filters within the reconstruction process. However, these filters may introduce additional ringing artifacts when simultaneously imaging pure phase objects and elements having a non-negligible absorption coefficient. Ringing originates at sharp interfaces, due to the truncation of spatial high frequencies, and severely affects qualitative and quantitative analysis of the reconstructed slices. In this work, we discuss the causes of ringing artifacts, and present a general compensation procedure to account for it. The proposed procedure has been tested with CT datasets of the mouse central nervous system acquired at different synchrotron radiation facilities. The results demonstrate that the proposed method compensates for ringing artifacts induced by low pass ring removal filters. The effectiveness of the ring suppression filters is not altered; the proposed method can thus be considered as a framework to improve the ring removal step, regardless of the specific filter adopted or the imaged sample. PMID- 29324440 TI - Micro-patterned graphene-based sensing skins for human physiological monitoring. AB - Ultrathin, flexible, conformal, and skin-like electronic transducers are emerging as promising candidates for noninvasive and nonintrusive human health monitoring. In this work, a wearable sensing membrane is developed by patterning a graphene based solution onto ultrathin medical tape, which can then be attached to the skin for monitoring human physiological parameters and physical activity. Here, the sensor is validated for monitoring finger bending/movements and for recognizing hand motion patterns, thereby demonstrating its future potential for evaluating athletic performance, physical therapy, and designing next-generation human-machine interfaces. Furthermore, this study also quantifies the sensor's ability to monitor eye blinking and radial pulse in real-time, which can find broader applications for the healthcare sector. Overall, the printed graphene based sensing skin is highly conformable, flexible, lightweight, nonintrusive, mechanically robust, and is characterized by high strain sensitivity. PMID- 29324439 TI - Hybrid dose calculation: a dose calculation algorithm for microbeam radiation therapy. AB - Microbeam radiation therapy (MRT) is still a preclinical approach in radiation oncology that uses planar micrometre wide beamlets with extremely high peak doses, separated by a few hundred micrometre wide low dose regions. Abundant preclinical evidence demonstrates that MRT spares normal tissue more effectively than conventional radiation therapy, at equivalent tumour control. In order to launch first clinical trials, accurate and efficient dose calculation methods are an inevitable prerequisite. In this work a hybrid dose calculation approach is presented that is based on a combination of Monte Carlo and kernel based dose calculation. In various examples the performance of the algorithm is compared to purely Monte Carlo and purely kernel based dose calculations. The accuracy of the developed algorithm is comparable to conventional pure Monte Carlo calculations. In particular for inhomogeneous materials the hybrid dose calculation algorithm out-performs purely convolution based dose calculation approaches. It is demonstrated that the hybrid algorithm can efficiently calculate even complicated pencil beam and cross firing beam geometries. The required calculation times are substantially lower than for pure Monte Carlo calculations. PMID- 29324441 TI - A study of lateral fall-off (penumbra) optimisation for pencil beam scanning (PBS) proton therapy. AB - The lateral fall-off is crucial for sparing organs at risk in proton therapy. It is therefore of high importance to minimize the penumbra for pencil beam scanning (PBS). Three optimisation approaches are investigated: edge-collimated uniformly weighted spots (collimation), pencil beam optimisation of uncollimated pencil beams (edge-enhancement) and the optimisation of edge collimated pencil beams (collimated edge-enhancement). To deliver energies below 70 MeV, these strategies are evaluated in combination with the following pre-absorber methods: field specific fixed thickness pre-absorption (fixed), range specific, fixed thickness pre-absorption (automatic) and range specific, variable thickness pre-absorption (variable). All techniques are evaluated by Monte Carlo simulated square fields in a water tank. For a typical air gap of 10 cm, without pre-absorber collimation reduces the penumbra only for water equivalent ranges between 4-11 cm by up to 2.2 mm. The sharpest lateral fall-off is achieved through collimated edge enhancement, which lowers the penumbra down to 2.8 mm. When using a pre-absorber, the sharpest fall-offs are obtained when combining collimated edge-enhancement with a variable pre-absorber. For edge-enhancement and large air gaps, it is crucial to minimize the amount of material in the beam. For small air gaps however, the superior phase space of higher energetic beams can be employed when more material is used. In conclusion, collimated edge-enhancement combined with the variable pre-absorber is the recommended setting to minimize the lateral penumbra for PBS. Without collimator, it would be favourable to use a variable pre-absorber for large air gaps and an automatic pre-absorber for small air gaps. PMID- 29324444 TI - Erratum. PMID- 29324442 TI - The epithelial-to-mesenchymal transition activator ZEB1 initiates a prometastatic competing endogenous RNA network. AB - Epithelial tumor cells undergo epithelial-to-mesenchymal transition (EMT) to gain metastatic activity. Competing endogenous RNAs (ceRNAs) have binding sites for a common set of microRNAs (miRs) and regulate each other's expression by sponging miRs. Here, we address whether ceRNAs govern metastasis driven by the EMT activating transcription factor ZEB1. High miR-181b levels were correlated with an improved prognosis in human lung adenocarcinomas, and metastatic tumor cell lines derived from a murine lung adenocarcinoma model in which metastasis is ZEB1 driven were enriched in miR-181b targets. ZEB1 relieved a strong basal repression of alpha1 integrin (ITGA1) mRNA, which in turn upregulated adenylyl cyclase 9 mRNA (ADCY9) by sponging miR181b. Ectopic expression of the ITGA1 3'-untranslated region reversed miR-181b-mediated metastasis suppression and increased the levels of adenylyl cyclase 9 protein (AC9), which promoted tumor cell migration and metastasis. In human lung adenocarcinomas, ITGA1 and ADCY9 levels were positively correlated, and an AC9-activated transcriptomic signature had poor-prognostic value. Thus, ZEB1 initiates a miR-181b-regulated ceRNA network to drive metastasis. PMID- 29324445 TI - Contents Vol. 46, 2017. PMID- 29324443 TI - Epithelial-mesenchymal transition leads to NK cell-mediated metastasis-specific immunosurveillance in lung cancer. AB - During epithelial-mesenchymal transition (EMT) epithelial cancer cells transdifferentiate into highly motile, invasive, mesenchymal-like cells, giving rise to disseminating tumor cells. Few of these disseminated cells successfully metastasize. Immune cells and inflammation in the tumor microenvironment were shown to drive EMT, but few studies investigated the consequences of EMT for tumor immunosurveillance. In addition to initiating metastasis, we demonstrate that EMT confers increased susceptibility to natural killer (NK) cells and contributes, in part, to the inefficiency of the metastatic process. Depletion of NK cells allowed spontaneous metastasis without affecting primary tumor growth. EMT-induced modulation of E-cadherin and cell adhesion molecule 1 (CADM1) mediated increased susceptibility to NK cytotoxicity. Higher CADM1 expression correlates with improved patient survival in 2 lung and 1 breast adenocarcinoma patient cohorts and decreased metastasis. Our observations reveal a novel NK mediated, metastasis-specific immunosurveillance in lung cancer and present a window of opportunity for preventing metastasis by boosting NK cell activity. PMID- 29324446 TI - Contents Vol. 46, 2017. PMID- 29324447 TI - Characteristic Motor and Nonmotor Symptoms Related to Quality of Life in Drug Naive Patients with Late-Onset Parkinson Disease. AB - BACKGROUND/AIMS: Unlike young-onset Parkinson disease (YOPD), characteristics of late-onset PD (LOPD) have not yet been clearly elucidated. We investigated characteristic features and symptoms related to quality of life (QoL) in LOPD patients. METHODS: We recruited drug-naive, early PD patients. The patient cohort was divided into 3 subgroups based on patient age at onset (AAO): the YOPD group (AAO <50 years), the middle-onset PD (MOPD) group, and the LOPD group (AAO >=70 years). Using various scales for motor symptoms (MS) and non-MS (NMS) and QoL, we compared the clinical features and impact on QoL. RESULTS: Of the 132 enrolled patients, 26 were in the YOPD group, 74 in the MOPD group, and 32 in the LOPD group. Among parkinsonian symptoms, patients in the LOPD group had a lower score on the Korean version of the Montreal Cognitive Assessment than the other groups. Logistic regression analysis showed genitourinary symptoms were related to the LOPD group. Linear regression analysis showed both MS and NMS were correlated with QoL in the MOPD group, but only NMS were correlated with QoL in the LOPD group. Particularly, anxiety and fatigue affected QoL in the LOPD group. CONCLUSION: LOPD patients showed different characteristic clinical features, and different symptoms were related with QoL for LOPD than YOPD and MOPD patients. PMID- 29324448 TI - The Expression of HSD17B12 Is Associated with COX-2 Expression and Is Increased in High-Grade Epithelial Ovarian Cancer. AB - OBJECTIVE: The aim of this study was to characterize the expression of hydroxysteroid (17beta) dehydrogenase type 12 (HSD17B12), an enzyme involved in the synthesis of arachidonic acid (AA), in ovarian cancer, and to study its coexpression with its upstream and downstream enzymes in the AA pathway, namely elongation of very long chain fatty acids protein 5 (ELOVL5) and cyclooxygenase-2 (COX-2), respectively. MATERIALS AND METHODS: Samples from benign and malignant ovarian neoplastic lesions were immunohistochemically stained with HSD17B12, ELOVL5, and COX-2. The staining intensities were quantified with the QuantCenter program, and the results were confirmed with visual inspection. Statistical significances were calculated with the Student t test, the Mann-Whitney test, linear regression, or ANOVA. RESULTS: The expression of the HSD17B12, ELOVL5, and COX-2 enzymes increased according to the grade of the endometrioid ovarian adenocarcinomas. In contrast, in serous adenocarcinomas, staining with ELOVL5 was constantly weak, whereas the expression of HSD17B12 and COX-2 increased with the grade or FIGO stage of the cancer, respectively. CONCLUSIONS: The expression of HSD17B12 increased along with the severity of ovarian cancer, and the expression mimicked COX-2 expression and intensity. This further suggests the involvement of HSD17B12 in AA production, and its coexpression with COX-2 indicates a role for the enzyme in the increased prostaglandin production during ovarian cancer progression. PMID- 29324449 TI - Toward Optimizing Vestibular Evoked Myogenic Potentials: Normalization Reduces the Need for Strong Neck Muscle Contraction. AB - BACKGROUND: The cervical vestibular evoked myogenic potential (cVEMP) represents an inhibitory reflex of the saccule measured in the ipsilateral sternocleidomastoid muscle (SCM) in response to acoustic or vibrational stimulation. Since the cVEMP is a modulation of SCM electromyographic (EMG) activity, cVEMP amplitude is proportional to muscle EMG amplitude. We sought to evaluate muscle contraction influences on cVEMP peak-to-peak amplitudes (VEMPpp), normalized cVEMP amplitudes (VEMPn), and inhibition depth (VEMPid). METHODS: cVEMPs at 500 Hz were measured in 25 healthy subjects for 3 SCM EMG contraction ranges: 45-65, 65-105, and 105-500 MUV root mean square (r.m.s.). For each range, we measured cVEMP sound level functions (93-123 dB peSPL) and sound off, meaning that muscle contraction was measured without acoustic stimulation. The effect of muscle contraction amplitude on VEMPpp, VEMPn, and VEMPid and the ability to distinguish cVEMP presence/absence were evaluated. RESULTS: VEMPpp amplitudes were significantly greater at higher muscle contractions. In contrast, VEMPn and VEMPid showed no significant effect of muscle contraction. Cohen's d indicated that for all 3 cVEMP metrics contraction amplitude variations produced little change in the ability to distinguish cVEMP presence/absence. VEMPid more clearly indicated saccular output because when no acoustic stimulus was presented the saccular inhibition estimated by VEMPid was zero, unlike those by VEMPpp and VEMPn. CONCLUSION: Muscle contraction amplitude strongly affects VEMPpp amplitude, but contractions 45-300 MUV r.m.s. produce stable VEMPn and VEMPid values. Clinically, there may be no need for subjects to exert high contraction effort. This is especially beneficial in patients for whom maintaining high SCM contraction amplitudes is challenging. PMID- 29324450 TI - Quantification of Myosin Heavy Chain Isoform mRNA Transcripts in the Supraspinatus Muscle of Vertical Clinger Primates. AB - Vertical clinging is a specialized form of locomotion characteristic of the primate family Callitrichidae. Vertical clinging requires these pronograde primates to maintain a vertical posture, so the protraction of their forelimbs must resist gravity. Since pronograde primates usually move as horizontal quadrupeds, we hypothesized that the supraspinatus muscle of vertical clingers would present specific characteristics related to the functional requirements imposed on the shoulder area by vertical clinging. To test this hypothesis, we quantified by real-time quantitative polymerase chain reaction the mRNA transcripts of myosin heavy chain (MHC) isoforms in the supraspinatus muscle of 15 species of pronograde primates, including vertical clingers. Our results indicate that the supraspinatus of vertical clingers has a specific expression pattern of the MHC isoforms, with a low expression of the transcripts of the slow MHC-I isoform and a high expression of the transcripts of the fast MHC-II isoforms. We conclude that these differences can be related to the particular functional characteristics of the shoulder in vertical clingers, but also to other anatomical adaptations of these primates, such as their small body size. PMID- 29324451 TI - Aromatase Deficiency due to a Homozygous CYP19A1 Mutation in a 46,XX Egyptian Patient with Ambiguous Genitalia. AB - Aromatase deficiency (AD) is a very rare disorder resulting from mutations in the CYP19A1 gene encoding aromatase, a cytochrome P450 enzyme that plays a pivotal role in androgen conversion to estrogens. AD is inherited in an autosomal recessive trait, and to date only 35 cases have been described in the literature. Herein, we depict a new patient reared as a male, who presented at the age of 21 years with no palpable testis, hypoplastic scrotum, penis-like phallus (3 cm), and penoscrotal hypospadias. The patient was born to consanguineous parents, his karyotype was 46,XX, and SRY was negative. Pelvic sonar showed a small hypoplastic uterus, and no testis could be identified. Serum testosterone was within the reference range of females along with high gonadotropins. Pathology of gonadal biopsy showed ovarian stroma negative for oocytic follicle consistent with streak gonads. All these data were suggestive of AD, which was subsequently confirmed by molecular investigation of the CYP19A1 gene. A homozygous splice site mutation in the donor splice site of exon 9 was identified, c.1263 + 1G>T. This is the first report of such a rare disorder in an Egyptian patient. Our results reinforce the importance of considering AD in patients with 46,XX disorders of sex development after ruling out congenital adrenal hyperplasia. PMID- 29324452 TI - Adjudication of Transient Ischemic Attack and Stroke in the Multi-Ethnic Study of Atherosclerosis. AB - BACKGROUND: To describe adjudication of transient ischemic attack (TIA) and stroke in an observational study. METHODS: We detail the process used to adjudicate TIA and stroke in the Multi-Ethnic Study of Atherosclerosis (MESA), a large longitudinal cohort study. Two of three vascular neurologists adjudicated each event using specific protocols. We examined the initial agreement, effect of imaging on diagnosis of TIA versus ischemic stroke, and effect of strict and less strict criteria on the number of ischemic stroke subtypes classified as undetermined. RESULTS: Of 573 adjudicated events over 13.5 years of follow-up, 95 (16.5%) had TIA and 269 (47.0%) had stroke: 211 (78.4%) ischemic, 43 (16.0%) hemorrhagic, and 15 (5.6%) other. Disagreements occurred on 16% of initial adjudication of events. Using results from imaging, the number with TIA decreased by 8.6% and with ischemic stroke increased by 4.1%. Using less strict criteria to classify ischemic stroke subtypes reduced the number classified as undetermined, from 137 to 59, and numbers classified as cardioembolic and small vessel doubled. CONCLUSIONS: We hope that this work will motivate and facilitate investigators to use MESA data to investigate issues concerning TIA and stroke and will inform investigators seeking to adjudicate TIA and stroke in other studies. PMID- 29324455 TI - Erratum. PMID- 29324454 TI - Using the Capture-Recapture Method to Estimate the Incidence of Amyotrophic Lateral Sclerosis in Beijing, China. AB - BACKGROUND: To assess the total, gender-related and ageing process-related incidence rates of amyotrophic lateral sclerosis (ALS) in Beijing, China. Determine whether the decreased male to female ratio among postmenopausal age groups. METHODS: We used the 2-source capture-recapture method to estimate the incidence of ALS in Beijing. The primary and secondary data sources were from diagnostic hospitals and assisted care institutions in the same area from 2010 to 2015. RESULTS: A total of 562 cases and 283 cases were extracted from 2 data sources, and a total of 962 patients diagnosed with ALS within the 6-year period were estimated (95% CI 883-1041). The average yearly incidence was 0.77/100,000 persons (95% CI 0.71-0.83). The female to male ratio was 1.63. The incidence was associated with age and peaked in the 55-64 year age group. There was no obvious decline in the male:female ratio among postmenopausal age groups. CONCLUSIONS: The total incidence of ALS in Beijing is similar to international reports. The onset of ALS is not merely the result of ageing. PMID- 29324453 TI - Developmental Origins of Health Span and Life Span: A Mini-Review. AB - BACKGROUND: A vast body of research has demonstrated that disease susceptibility and offspring health can be influenced by perinatal factors, which include both paternal and maternal behavior and environment. Offspring disease risk has the potential to affect the health span and life span of offspring. KEY FINDINGS: Various maternal factors, such as environmental toxicant exposure, diet, stress, exercise, age at conception, and longevity have the potential to influence age associated diseases such as cardiovascular disease, obesity, diabetes, and cancer risk in offspring. Paternal factors such as diet, age at conception, and longevity can potentially impact offspring health span and life span-reducing traits as well. PRACTICAL IMPLICATIONS: Continued research could go a long way toward defining mechanisms of the developmental origins of life span and health span, and eventually establishing regimens to avoid negative developmental influences and to encourage positive interventions to potentially increase life span and improve health span in offspring. PMID- 29324457 TI - Successful First Gait of a Child With Hip-Disarticulation Prosthesis. AB - An infant boy underwent hip disarticulation for infantile fibrosarcoma immediately after birth. His rehabilitation began when he was 4 mos old and involved training with his left (residual) leg. He could stand with support at 12 mos. His initial prosthesis fitting was performed at the age of 13 mos. He could stand and walk with support at 15 mos of age and could walk with no additional support and go up and down stairs at 2 yrs. A single-axis prosthetic knee joint was introduced at the age of 2 yrs 3 mos. His first gait using a hip prosthesis was successful, and his prosthesis was replaced at appropriate intervals with no major problems. The authors believe that the key to achieving a successful prosthetic gait in children is good communication among the medical team, which should comprise an orthopedic doctor, rehabilitation doctor, nurse, physical therapist, prosthetist/orthotist, and the patient's parents. PMID- 29324458 TI - Ultrasound Imaging and Guided Injection for the Lateral and Posterior Hip. AB - Ultrasound has emerged as one of the most utilized tools to diagnose musculoskeletal disorders and to assist in interventions. Traditionally, sonographic examination of the hip joint has been challenging because most of the major structures are deeply situated, thus requiring the use of curvilinear transducer for better penetrance. The posterior lateral hip is a frequent area for musculoskeletal pain and nerve entrapments. Common disorders include greater trochanteric pain syndrome, gluteus medius tendinopathy, piriformis syndrome, pudendal neuralgia, and proximal hamstring tendinopathy. The present review article aims to delineate sonoanatomy of the posterior lateral hip and to exemplify several common ultrasound guided procedures at the greater trochanteric, gluteal, and ischial tuberosity regions. PMID- 29324456 TI - Targeted Knockdown of Bone Morphogenetic Protein Signaling within Neural Progenitors Protects the Brain and Improves Motor Function following Postnatal Hypoxia-Ischemia. AB - Hypoxic-ischemic injury (HI) to the neonatal human brain results in myelin loss that, in some children, can manifest as cerebral palsy. Previously, we had found that neuronal overexpression of the bone morphogenic protein (BMP) inhibitor noggin during development increased oligodendroglia and improved motor function in an experimental model of HI utilizing unilateral common carotid artery ligation followed by hypoxia. As BMPs are known to negatively regulate oligodendroglial fate specification of neural stem cells and alter differentiation of committed oligodendroglia, BMP signaling is likely an important mechanism leading to myelin loss. Here, we showed that BMP signaling is upregulated within oligodendroglia of the neonatal brain. We tested the hypothesis that inhibition of BMP signaling specifically within neural progenitor cells (NPCs) is sufficient to protect oligodendroglia. We conditionally deleted the BMP receptor 2 subtype (BMPR2) in NG2-expressing cells after HI. We found that BMPR2 deletion globally protects the brain as assessed by MRI and protects motor function as assessed by digital gait analysis, and that conditional deletion of BMPR2 maintains oligodendrocyte marker expression by immunofluorescence and Western blot and prevents loss of oligodendroglia. Finally, BMPR2 deletion after HI results in an increase in noncompacted myelin. Thus, our data indicate that inhibition of BMP signaling specifically in NPCs may be a tractable strategy to protect the newborn brain from HI. PMID- 29324459 TI - Discordance between lipoprotein particle number and cholesterol content: an update. AB - PURPOSE OF REVIEW: The cholesterol content within atherogenic apolipoprotein-B (apoB) containing lipid particles is the center of consensus guidelines and clinicians' focus whenever evaluating a patient's risk for atherosclerotic cardiovascular disease. The pathobiology of atherosclerosis requires the retention of lipoprotein particles within the vascular intima over time followed by maladaptive inflammation resulting in plaque formation and rupture in some. The cholesterol content is widely variable within each particle creating either cholesterol-deplete or cholesterol-enriched particles. This variance in particle cholesterol content varies within and between individuals. Discordance analysis exploits this difference in cholesterol content of particles to demonstrate the differential significance of LDL-cholesterol (LDL-C) and non-HDL-C from measures of lipoprotein particle number in terms of assessing atherosclerotic cardiovascular disease risks. RECENT FINDINGS: Three studies have added to the growing body of literature of discordance analysis. Despite wide variability of discordance cutoffs, baseline risk of atherosclerotic disease, and populations sampled, the conclusion remains the same: risk of atherosclerotic disease follows apoB lipid particle concentration rather than cholesterol content of lipid particles. SUMMARY: In addition to traditional lipid fractions, assessments of atherogenic particle number should be strongly considered whenever assessing CVD risk in nontreated and treated individuals. There is a need for clinical trials that focus not only on the reduction in LDL-C but apoB, as well. PMID- 29324460 TI - Sex differences in Alzheimer's disease. AB - PURPOSE OF REVIEW: Women are more impacted by Alzheimer's disease than men - they are at significantly greater risk of developing Alzheimer's disease, and recent research shows that they also appear to suffer a greater cognitive deterioration than men at the same disease stage. The purpose of this article is to review recent studies on examining sex differences in cognitive function in Alzheimer's disease. RECENT FINDINGS: We searched electronically for articles, reviews and meta-analyses published between 1/2016 and 12/2017 and identified 298 articles on sex differences in cognition in Alzheimer's disease. The key themes to emerge were sex differences in cognitive function, risk factors, resilience, and cognitive reserve. SUMMARY: Evidence is steadily and increasingly accumulating to confirm the poorer cognitive outcome for women than men with Alzheimer's disease. Although small in size, the effects occur across a broad range of cognitive domains including visuospatial, verbal, episodic memory, and semantic memory - some of which typically reveal a sex-related processing advantage for healthy women. Explanations have been linked to a variety of factors including differences in cognitive reserve, resilience, as well as genetics (apolipoprotein epsilon4) and functional and structural brain changes. Sex-related differences in risk factors, resilience, cognitive reserve, and rates of deterioration have implications for clinical practice. PMID- 29324461 TI - Efficacy of treatment immune thrombocytopenic purpura in pregnancy with corticosteroids and intravenous immunoglobulin: a prospective follow-up of suggested practice. AB - : The current study is performed to assess a routine for treatment of immune thrombocytopenic purpura in pregnancy. A prospective programme for monitoring and treatment with intravenous immunoglobulin or cortisone in pregnancies with immune thrombocytopenic purpura was suggested to all delivery units in Sweden. Treatment should be avoided if platelet counts were more than 20 * 10/l during pregnancy with no bleeding complications and with a target of 100 * 10/l at delivery. Descriptive statistics and logistic regression analysis were used. Seventy-five pregnancies were followed; treatment was given in 29 (39%) of the pregnancies; in 13 intravenous immunoglobulin, in six cortisone, in nine a combination of both immunoglobulin and cortisone and in one platelets was given. The mean platelet increase before delivery after immunoglobulin was 46 * 10/l approximately 3 days later. At delivery, 34 (45%) of all pregnancies reached target platelet level more than 100 * 10/l, whereas five (7%) had platelets less than 50 * 10/l. Mode of delivery and blood loss were similar to a reference group. Of the neonates, 23% had platelets less than 50 * 10/l with a nadir reached on day 2-4; 9% required treatment. Women with platelets less than 20 * 10/l in pregnancy or with prior neonatal thrombocytopenia were at a, respectively, five-fold and eight-fold increased risk of neonatal thrombocytopenia. A routine to avoid treatment when platelets are at least 20 * 10/l during pregnancy and to aim for 100 * 10/l at delivery seem safe. Severe maternal thrombocytopenia and prior neonatal thrombocytopenia were predictors of neonatal thrombocytopenia. PMID- 29324462 TI - Spontaneous Rectus Sheath Hematoma Complicating Therapeutic Heparinization. PMID- 29324463 TI - Fractures Related to Tenofovir: A Case/Noncase Study in the European Pharmacovigilance Database. AB - BACKGROUND: There is no clear consensus on the relationship between tenofovir (TDF) and fracture risk because the studies published so far present contradictory findings. STUDY QUESTION: Our objective was to detect, from the European pharmacovigilance database (EudraVigilance), a signal of fracture risk during TDF exposure in patients infected with HIV. METHODS: Herein, we analyze all the cases of fractures suspected to be related to TDF recorded in EudraVigilance between 2001 and November 10, 2016. A case/noncase method was used to assess the association between fractures and TDF, calculating proportional reporting ratios (PRRs) and their 95% confidence intervals (CIs) as a measure of disproportionality. According to the Medical Dictionary for Regulatory Activities (MedDRA) terminology, osteoporotic fractures are included in High Level Group Term (HLGT) "Fractures" and traumatic fractures in HLGT "Bone and joint injuries," so, we selected cases included in both HLGTs. The noncases used as controls were all the remaining adverse drug reaction reports recorded in EudraVigilance during the same period. RESULTS: There were 68,113 cases of fractures in the 4,776,472 reports recorded in EudraVigilance during the study period. TDF was involved in 181 cases. The median latency period until the appearance of fracture was 995 days. TDF was present as the only suspect drug in 140 cases. The PRR of TDF and fractures was 1.11 (95% CI, 0.96-1.28). Nevertheless, disproportionality was observed for some types of fractures: osteoporotic fractures (PRR 17.24; 95% CI, 9.90-30.01), bone fissure (PRR 16.60; 95% CI, 6.11-45.10), and pathological fracture (PRR 4.40; 95% CI, 2.77-7.00). CONCLUSIONS: Our findings do not show a disproportionality for fractures in patients treated with TDF, although disproportionality was found for some types of fractures, mainly osteoporotic fractures. PMID- 29324464 TI - Sacubitril/Valsartan-Associated Small Bowel Ileus. PMID- 29324465 TI - Medical Marijuana, Facts and Questions. PMID- 29324466 TI - Rivaroxaban Used for Treatment of a Left Ventricular Thrombus in a Patient With Nonischemic Cardiomyopathy. PMID- 29324467 TI - Topical Salicylic Acid Hypersensitivity. PMID- 29324468 TI - Switching antipsychotic treatment to aripiprazole in psychotic patients with neuroleptic-induced tardive dyskinesia: a 24-week follow-up study. AB - Aripiprazole is a second-generation antipsychotics, acting as a partial dopamine D2 receptor agonist. Previous studies on aripiprazole for tardive dyskinesia (TD) treatment were limited and inconclusive. This study was aimed to examine the effectiveness of aripiprazole in psychotic patients with a pre-existing TD. This was an open-label 24-week prospective cohort study conducted in a public mental hospital in Northern Taiwan from January 2009 to February 2010. Psychotic patients were cross-titrated of prior antipsychotics with aripiprazole, and the severity of TD was assessed at baseline and at weeks 2, 4, 8, 12, 16, 20, and 24. The primary study outcome was the change of TD severity, assessed by Abnormal Involuntary Movement Scale (AIMS) total score. Responder was defined as the reduction of AIMS total scores of no less than 50% from baseline to the study endpoint (24 weeks). Thirty psychotic patients with neuroleptic-induced TD were recruited. The AIMS total scores significantly decreased from baseline to the study endpoint (-7.17+/-5.55). The significant decrease of AIMS total scores started at week 2 (P<0.0001), and the change remained significant throughout the entire study period (P<0.0001). A greater severity of TD (adjusted odds ratio: 1.35, 95% confidence interval: 1.04-1.76, P=0.03) or a lower severity of parkinsonism (adjusted odds ratio: 0.78, 95% confidence interval: 0.61-0.99, P=0.04) at baseline was significantly associated with treatment responders. Our findings implicated that aripiprazole can be a promising treatment for clinicians considering drug switch in psychotic patients with TD. Further large randomized, controlled trials are warranted to confirm our findings. PMID- 29324469 TI - Parafibromin-deficient (HPT-JT Type, CDC73 Mutated) Parathyroid Tumors Demonstrate Distinctive Morphologic Features. AB - The gene CDC73 (previously known as HRPT2) encodes the protein parafibromin. Biallelic mutation of CDC73 is strongly associated with malignancy in parathyroid tumors. Heterozygous germline mutations cause hyperparathyroidism jaw tumor syndrome,which is associated with a high life-time risk of parathyroid carcinoma. Therefore loss of parafibromin expression by immunohistochemistry may triage genetic testing for hyperparathyroidism jaw tumor syndrome and be associated with malignant behavior in atypical parathyroid tumors. We share our experience that parafibromin-negative parathyroid tumors show distinctive morphology. We searched our institutional database for parathyroid tumors demonstrating complete loss of nuclear expression of parafibromin with internal positive controls. Forty-three parafibromin-negative tumors from 40 (5.1%) of 789 patients undergoing immunohistochemistry were identified. Thirty-three (77%) were external consultation cases; the estimated incidence in unselected tumors was 0.19%. Sixteen (37.2%) fulfilled World Health Organization 2017 criteria for parathyroid carcinoma and 63% had serum calcium greater than 3mmol/L. One of 27 (3.7%) noninvasive but parafibromin-negative tumors subsequently metastasized. Parafibromin-negative patients were younger (mean, 36 vs. 63 y; P<0.001) and had larger tumors (mean, 3.04 vs. 0.62 g; P<0.001). Not all patients had full testing, but 26 patients had pathogenic CDC73 mutation/deletions confirmed in tumor (n=23) and/or germline (n=16). Parafibromin-negative tumors demonstrated distinctive morphology including extensive sheet-like rather than acinar growth, eosinophilic cytoplasm, nuclear enlargement with distinctive coarse chromatin, perinuclear cytoplasmic clearing, a prominent arborizing vasculature, and, frequently, a thick capsule. Microcystic change was found in 21 (48.8%). In conclusion, there are previously unrecognized morphologic clues to parafibromin loss/CDC73 mutation in parathyroid tumors which, given the association with malignancy and syndromic disease, are important to recognize.This is an open access article distributed under the terms of the Creative Commons Attribution Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0/. PMID- 29324470 TI - Fibroma-like PEComa: A Tuberous Sclerosis Complex-related Lesion. AB - Perivascular epithelioid cell tumor (PEComa), mesenchymal tumors morphologically characterized by epithelioid cells, coexpress melanocytic and muscle markers. Herein, we describe a heretofore-undescribed tuberous sclerosis complex (TSC) related neoplasm, morphologically resembling a soft tissue fibroma-like lesion, but showing an immunophenotype resembling PEComa. We identified 3 soft tissue fibroma-like lesions in individuals with TSC. We also evaluated 6 TSC-related periungual fibroma as well as a range of non-TSC fibroma-like lesions (n=19). Immunohistochemistry for HMB-45, desmin, smooth muscle actin, TFE3, and S100 was performed on the TSC-related fibromas. Periungual fibromas and non-TSC fibroma like lesions were also stained for HMB-45. All 3 TSC patients were female, ranging in age from 4 to 51 years (mean, 26.7 y). Two tumors were located in extremities and 1 on the chest wall. The tumors showed elongated to stellate spindle-shape cells, prominent collagenous background, and lacked mitotic activity and cytologic atypia. Immunohistochemically, all 3 tumors were positive for HMB-45; smooth muscle actin or desmin was positive in both tumors tested. TFE3 was negative. All patients were alive with no evidence of disease with median follow-up of 55 months (range, 6 to 131 mo). Non-TSC fibroma-like lesions and oral and periungual fibromas were negative for HMB-45. Fibroma-like PEComa, a newly recognized soft tissue tumor with a strong association with TSC, mimics soft tissue fibroma but shows reactivity with melanocytic markers. PMID- 29324472 TI - Collagenous Enteritis is Unlikely a Form of Aggressive Celiac Disease Despite Sharing HLA-DQ2/DQ8 Genotypes. AB - Collagenous enteritis is an uncommon small intestinal injury pattern with unclear pathogenesis. While it has been speculated that collagenous enteritis represents a form of refractory celiac disease, recent clinical studies suggest a potential link to exposure to the antihypertensive medication olmesartan. Here we hypothesized that the pathogenesis of collagenous enteritis involves both genetic and environmental factors. All subjects with biopsy-proven collagenous enteritis diagnosed between 2002 and 2015 were identified from 2 tertiary care medical centers. Human leukocyte antigen (HLA)-DQ genotyping was performed by polymerase chain reaction on archived tissue. Celiac disease serology, past medical history, medications, smoking history, demographics, histology, clinical management, and follow-up were recorded. A total of 32 subjects were included. In contrast to celiac disease, subjects with collagenous enteritis were mostly elderly (median age at diagnosis, 69 y; range, 33 to 84 y). Seventy percent of collagenous enteritis subjects harbored celiac disease susceptibility alleles HLA-DQ2/DQ8; however, only 1 subject had elevated serum levels of celiac disease-associated autoantibodies while on a gluten-containing diet. Furthermore, 56% of subjects were taking nonsteroidal anti-inflammatory drugs, 36% proton-pump inhibitors, 28% statins, and 32% olmesartan at the time of diagnosis. Discontinuation of olmesartan and treatments with steroids and/or gluten-free diet resulted in symptomatic and histologic improvement. Neither lymphoma nor collagenous enteritis-related death was seen in this cohort. Therefore, while collagenous enteritis shares similar HLA genotypes with celiac disease, the difference in demographics, the lack of celiac disease-associated autoantibodies, and potential link to medications as environmental triggers suggest the 2 entities are likely distinct in pathogenesis. PMID- 29324471 TI - Sellar Region Atypical Teratoid/Rhabdoid Tumors (ATRT) in Adults Display DNA Methylation Profiles of the ATRT-MYC Subgroup. AB - Atypical teratoid/rhabdoid tumor (ATRT) is a highly malignant brain tumor predominantly encountered in infants. Mutations of the SMARCB1 gene are the characteristic genetic lesion. A small group of ATRT stands out clinically, because these tumors are located in the sellar region of adults. To investigate if sellar region ATRT in adults represents a molecular distinct entity, we characterized molecular alterations in 7 sellar region ATRTs in adults as compared with 150 pediatric ATRTs and 47 pituitary adenomas using SMARCB1 sequencing, multiplex ligation-dependent probe amplification and fluorescence in situ hybridization as well as DNA methylation profiling. The median age of the 6 female and 1 male patients was 56 years. On histopathologic examination, all tumors were malignant rhabdoid tumors showing loss of SMARCB1/INI1 protein expression. Two cases displayed compound heterozygous SMARCB1 point mutations, 3 cases showed heterozygous SMARCB1 deletions with point mutations of the other allele and 1 case a homozygous SMARCB1 deletion; in 1 case, underlying SMARCB1 alterations could not be identified. On unsupervised hierarchical cluster analysis of DNA methylation profiles, sellar region ATRTs did not form a distinct group, but clustered with ATRT-MYC, 1 of 3 recently described molecular subgroups of ATRT. On analysis of DNA methylation array intensity data, only 1 sellar region ATRT showed characteristic features of pediatric ATRT-MYC, that is, major copy number losses affecting the SMARCB1 region. In conclusion, these results suggest that sellar region ATRTs in adults form a clinically distinct entity with a different mutational spectrum, but epigenetic similarities with pediatric ATRTs of the ATRT-MYC subgroup. PMID- 29324473 TI - Chondromyxoid Fibroma Arising in Craniofacial Sites: A Clinicopathologic Analysis of 25 Cases. AB - Chondromyxoid fibroma (CMF) is a rare benign tumor, usually arising in the metaphysis of long bones in young adults. Occurrence in craniofacial bones presents a particular diagnostic challenge given its unusual location and resemblance to malignant mimics. We describe the clinicopathologic features of 25 cases of craniofacial CMF identified between 1999 and 2017. Patients were 14 men and 11 women, with median age of 44 years (range, 5 to 83 y). Sites of involvement were sphenoid (7), ethmoid (5), maxilla (3), occipital (2), nasal septum (2), palatine (2), temporal (2), orbit (1), and undisclosed skull (1). Tumor size ranged from 0.8 to 6.0 cm (median, 2.0 cm). Of the 21 tumors with available radiology, 15 arose on the bone surface with expansion into adjacent sinuses; 6 were intraosseous. Bony erosion/destruction was present in most (13/16) cases, and 7/12 showed calcification on imaging. Microscopically, most tumors showed a lobulated growth pattern with hypocellular central chondromyxoid areas and peripheral hypercellularity, though many samples were fragmented. Tumor cells had ovoid to tapered nuclei and abundant palely eosinophilic cytoplasm, frequently with stellate cell processes. Mitoses ranged from 0 to 2 per 10 high power fields (median count, 0). None showed necrosis. Significant atypia was present in 2 cases, 1 of which was a previously radiated recurrence. Bone infiltration was present in 6 cases. Thirteen tumors had focal calcification, and 2 had foci of hyaline cartilage. All tumors were negative for keratin and GFAP (0/24), with frequent positivity for SMA (7/7) and occasional staining for EMA (5/24) and S-100 (2/24). Most patients underwent piecemeal excision or curettage (5/5 positive margins when reported). Follow-up data were available for 15 patients, and 5 suffered local recurrence. Craniofacial CMF poses diagnostic pitfalls including frequent aggressive radiologic features and lack of a specific immunophenotype. Tumors may recur, largely due to the difficulty of obtaining clear surgical margins in this anatomic region. Furthermore, propensity for local destruction and invasion can create significant morbidity. PMID- 29324474 TI - Active and Inactive Leg Hemodynamics during Sequential Single-Leg Interval Cycling. AB - INTRODUCTION: Leg order during sequential single-leg cycling (i.e., exercising both legs independently within a single session) may affect local muscular responses potentially influencing adaptations. This study examined the cardiovascular and skeletal muscle hemodynamic responses during double-leg and sequential single-leg cycling. METHODS: Ten young healthy adults (28 +/- 6 yr) completed six 1-min double-leg intervals interspersed with 1 min of passive recovery and, on a separate occasion, 12 (six with one leg followed by six with the other leg) 1-min single-leg intervals interspersed with 1 min of passive recovery. Oxygen consumption, heart rate, blood pressure, muscle oxygenation, muscle blood volume, and power output were measured throughout each session. RESULTS: Oxygen consumption, heart rate, and power output were not different between sets of single-leg intervals, but the average of both sets was lower than the double-leg intervals. Mean arterial pressure was higher during double-leg compared with sequential single-leg intervals (115 +/- 9 vs 104 +/- 9 mm Hg, P < 0.05) and higher during the initial compared with second set of single-leg intervals (108 +/- 10 vs 101 +/- 10 mm Hg, P < 0.05). The increase in muscle blood volume from baseline was similar between the active single leg and the double leg (267 +/- 150 vs 214 +/- 169 MUM.cm, P = 0.26). The pattern of change in muscle blood volume from the initial to second set of intervals was significantly different (P < 0.05) when the leg was active in the initial (-52.3% +/- 111.6%) compared with second set (65.1% +/- 152.9%). CONCLUSIONS: These data indicate that the order in which each leg performs sequential single-leg cycling influences the local hemodynamic responses, with the inactive muscle influencing the stimulus experienced by the contralateral leg. PMID- 29324475 TI - Bilateral Cochlear Implants: Maximizing Expected Outcomes. AB - CASE: Sonia is a 4 years 1 month-year-old girl with Waardenburg syndrome and bilateral sensorineural hearing loss who had bilateral cochlear implants at 2 years 7 months years of age. She is referred to Developmental-Behavioral Pediatrics by her speech/language pathologist because of concerns that her language skills are not progressing as expected after the cochlear implant. At the time of the implant, she communicated using approximately 20 signs and 1 spoken word (mama). At the time of the evaluation (18 months after the implant) she had approximately 70 spoken words (English and Spanish) and innumerable signs that she used to communicate. She could follow 1-step directions in English but had more difficulty after 2-step directions.Sonia was born in Puerto Rico at 40 weeks gestation after an uncomplicated pregnancy. She failed her newborn hearing test and was given hearing aids that did not seem to help.At age 2 years, Sonia, her mother, and younger sister moved to the United States where she was diagnosed with bilateral severe-to-profound hearing loss. Genetic testing led to a diagnosis of Waardenburg syndrome (group of genetic conditions that can cause hearing loss and changes in coloring [pigmentation] of the hair, skin, and eyes). She received bilateral cochlear implants 6 months later.Sonia's mother is primarily Spanish-speaking and mostly communicates with her in Spanish or with gestures but has recently begun to learn American Sign Language (ASL). In a preschool program at a specialized school for the deaf, Sonia is learning both English and ASL. Sonia seems to prefer to use ASL to communicate.Sonia receives speech and language therapy (SLT) 3 times per week (90 minutes total) individually in school and once per week within a group. She is also receiving outpatient SLT once per week. Therapy sessions are completed in English, with the aid of an ASL interpreter. Sonia's language scores remain low, with her receptive skills in the first percentile, and her expressive skills in the fifth percentile.During her evaluation in Developmental and Behavioral Pediatrics, an ASL interpreter was present, and the examiner is a fluent Spanish speaker. Testing was completed through a combination of English, Spanish, and ASL. Sonia seemed to prefer ASL to communicate, although she used some English words with errors of pronunciation. On the Beery Visual-Motor Integration Test, she obtained a standard score of 95. Parent and teacher rating scales were not significant for symptoms of attention-deficit/hyperactivity disorder.What factors are contributing to her slow language acquisition and how would you modify her treatment plan? PMID- 29324476 TI - Revisiting autologous transplantation in acute myeloid leukemia. AB - PURPOSE OF REVIEW: Autologous hematopoietic cell transplantation (auto-HCT) has been evaluated as a consolidation treatment for acute myeloid leukemia (AML) in the 1980s and 1990s. These prospective studies from large trials compared auto HCT with chemotherapy. A comparison was made also with allogeneic hematopoietic cell transplantation (allo-HCT). These studies reported a lower relapse rate with auto-HCT compared with chemotherapy, but without impact on the overall survival. A high transplant-related mortality in that era confounded the relevance of these data. RECENT FINDINGS: Several prospective studies and a plethora of retrospective registry data have confirmed the potent antileukemic therapy of auto-HCT compared with chemotherapy and, in some instances, have even challenged the presumed superiority of allo-HCT as the definitive therapy for certain patients with AML. SUMMARY: The aggregate of recent data, prospective and retrospective, strongly suggests an important role for auto-HCT, at least as the most potent nonimmunologic antileukemia therapy. The transplant-related mortality in 2017 is close to that expected from standard consolidation therapy leading to the conclusion that the role of auto-HCT needs to be rigorously revisited, preferably in prospective studies, to establish its precise role in the current era. PMID- 29324478 TI - Site of entry and surgical timing in infective endocarditis. PMID- 29324477 TI - Assuring Quality for Non-hospital-based Biologic Infusions in Pediatric Inflammatory Bowel Disease: A Clinical Report From the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition. AB - The primary aim of this Clinical Report by the North American Society for Pediatric Gastroenterology, Hepatology and Nutrition is to provide formal guidance to pediatric gastroenterologists and clinicians, health systems, and insurance payers regarding home- and office-based infusions for biologic therapies in pediatric inflammatory bowel disease. Patients in North America are increasingly denied coverage by payers based on "place of service" codes at hospital-based infusion units where the treating clinicians primarily provide care. A task force with topic expertise generated 8 best practice recommendations to ensure quality of care for pediatric patients with inflammatory bowel disease receiving non-hospital-based biologic infusions. Pragmatic considerations discussed in this report include patient safety, pediatric-trained nurse availability, care coordination, patient-centeredness, shared liability, administrative support, clinical governance, and costs of care. PMID- 29324479 TI - A systematic review of epidemiology, treatment and prognosis of heart failure in adults in Ethiopia. AB - BACKGROUND: Systematic characterization of heart failure in adults in Ethiopia is lacking currently. In this review, we sought to summarize the available scientific evidence on the epidemiology, treatment and prognosis of heart failure in adults in Ethiopia. METHODS: A systematic review of PUBMED, EMBASE and SCOPUS was conducted for studies published between January 1990 and July 2017. Studies reporting on incidence, prevalence, treatment or prognosis of heart failure in individuals older than 14 years of age were included. RESULTS: The search yielded 66 articles, out of which nine were found to be eligible for inclusion in this review. There are no studies reporting the incidence or prevalence of heart failure in the adult population in Ethiopia. There are, however, indications that heart failure might be a significant burden in the country, and typically affects middle-aged adults. Valvular heart disease, predominantly related to rheumatic heart disease, is the most commonly identified heart failure cause across the included studies. There are very limited data on treatment and prognosis. CONCLUSION: There is limited scientific evidence on the epidemiology, treatment and prognosis of heart failure in adults in Ethiopia. Further studies are needed for the better understanding of the burden and treatment of heart failure in the adult population in Ethiopia. PMID- 29324480 TI - Anesthesiology Board Certification Changes: A Real-time Example of "Assessment Drives Learning". PMID- 29324481 TI - Do Anesthetic Choices Signal Quality? PMID- 29324482 TI - Enhanced Needle Visibility by Micro Air Bubble Contrast in Ultrasound-guided Nerve Block. PMID- 29324483 TI - Advancing Patient Safety in Airway Management. PMID- 29324484 TI - Fear in Perspective. PMID- 29324485 TI - Bearing Witness to Anger and Loss. PMID- 29324486 TI - Fibrinolysis and antifibrinolytic treatment in the trauma patient. AB - PURPOSE OF REVIEW: The role of antifibrinolytics in trauma haemorrhage and early coagulopathy remains controversial with respect to patient selection, dosage, timing of treatment, and risk of thrombotic complications. This review presents our current understanding of the mechanisms of fibrinolysis in trauma, diagnostic evaluation, and the evidence base for treatment. RECENT FINDINGS: Excessive fibrinolysis following severe injury is a major component of acute traumatic coagulopathy and contributes to the high mortality from trauma haemorrhage. The protein C pathway, endothelial dysfunction, platelet activity, shock, and tissue injury are key to the development of hyper fibrinolysis in trauma. D-dimer and viscoelastic haemostatic assays (rotational thromboelastometry, TEG) remain the best available diagnostic modalities but have a number of limitations compared with plasma biomarkers of fibrinolytic activation, for example, plasmin-alpha2 antiplasmin complex. Current evidence supports the continued empiric use of tranexamic acid in major trauma haemorrhage. SUMMARY: Improving the outcomes for bleeding trauma patients requires a deeper understanding of the mechanisms driving hyperfibrinolysis and the subsequent switch toward a prothrombotic state. Discovering the interplay between platelet activity, fibrinogen utilization, the immune response, and the fibrinolytic system may lead to development of novel therapeutics. PMID- 29324487 TI - Renal replacement therapy in critically ill patients: who, when, why, and how. AB - PURPOSE OF REVIEW: The increasing incidence of acute kidney injury has the immediate effect of a growing need for renal replacement therapy (RRT). Shedding light on the questions of who, when, why, and how RRT should be performed is difficult to accomplish because of ambiguous study results, poor quality evidence, and low standardization. RECENT FINDINGS: Critically ill patients are exposed to multiple factors known to deteriorate kidney function. Especially severe fluid overload is strongly associated with worse outcome and may be considered as a trigger for initiating RRT. In the absence of life-threatening complications, a strategy of early initiation of RRT might be most advantageous keeping in mind the potential adverse effects of RRT. By providing better hemodynamic stability and superior control of fluid balance continuous RRT is the first choice therapeutic tool as compared with intermittent techniques. The femoral and jugular veins are the preferred insertion sites for temporary catheters. Although data are still weak, there is some preliminary evidence that regional citrate anticoagulation is superior to systemic heparinization. SUMMARY: The best management of RRT is still a subject of controversy. Continuous RRT with regional citrate anticoagulation via a temporary catheter in a jugular vein is the recommended first choice treatment option in critically ill patients with acute kidney injury. PMID- 29324488 TI - Storage injury and blood transfusions in trauma patients. AB - PURPOSE OF REVIEW: The aim of the present review was to concisely summarize recent studies and current knowledge about effects of red blood cell storage injury in trauma patients. RECENT FINDINGS: Despite a pathophysiological rationale for older packed red blood cells (PRBCs) being associated with adverse events in the host organism, recent large clinical trials failed to show negative effects of transfusion with older PRBCs on clinically relevant outcomes in mixed patient population. However, there is a lack of well-designed randomized controlled trials focusing on the effects of storage lesion of PRBCs in trauma patients. SUMMARY: In the absence of specific evidence for trauma patients, we recommend to continue with a conservative transfusion regime and standard of care blood banking practice of using older PRBCs first. PMID- 29324489 TI - Comparing Methods for Cardiac Output: Intraoperatively Doppler-Derived Cardiac Output Measured With 3-Dimensional Echocardiography Is Not Interchangeable With Cardiac Output by Pulmonary Catheter Thermodilution. AB - BACKGROUND: Estimation of cardiac output (CO) is essential in the treatment of circulatory unstable patients. CO measured by pulmonary artery catheter thermodilution is considered the gold standard but carries a small risk of severe complications. Stroke volume and CO can be measured by transesophageal echocardiography (TEE), which is widely used during cardiac surgery. We hypothesized that Doppler-derived CO by 3-dimensional (3D) TEE would agree well with CO measured with pulmonary artery catheter thermodilution as a reference method based on accurate measurements of the cross-sectional area of the left ventricular outflow tract. METHODS: The primary aim was a systematic comparison of CO with Doppler-derived 3D TEE and CO by thermodilution in a broad population of patients undergoing cardiac surgery. A subanalysis was performed comparing cross-sectional area by TEE with cardiac computed tomography (CT) angiography. Sixty-two patients, scheduled for elective heart surgery, were included; 1 was subsequently excluded for logistic reasons. Inclusion criteria were coronary artery bypass surgery (N = 42) and aortic valve replacement (N = 19). Exclusion criteria were chronic atrial fibrillation, left ventricular ejection fraction below 0.40 and intracardiac shunts. Nineteen randomly selected patients had a cardiac CT the day before surgery. All images were stored for blinded post hoc analyses, and Bland-Altman plots were used to assess agreement between measurement methods, defined as the bias (mean difference between methods), limits of agreement (equal to bias +/- 2 standard deviations of the bias), and percentage error (limits of agreement divided by the mean of the 2 methods). Precision was determined for the individual methods (equal to 2 standard deviations of the bias between replicate measurements) to determine the acceptable limits of agreement. RESULTS: We found a good precision for Doppler derived CO measured by 3D TEE, but although the bias for Doppler-derived CO by 3D compared to thermodilution was only 0.3 L/min (confidence interval, 0.04-0.58), there were wide limits of agreement (-1.8 to 2.5 L/min) with a percentage error of 55%. Measurements of cross-sectional area by 3D TEE had low bias of -0.27 cm (confidence interval, -0.45 to -0.08) and a percentage error of 18% compared to cardiac CT angiography. CONCLUSIONS: Despite low bias, the wide limits of agreement of Doppler-derived CO by 3D TEE compared to CO by thermodilution will limit clinical application and can therefore not be considered interchangeable with CO obtained by thermodilution. The lack of agreement is not explained by lack of agreement of the 3D technique. PMID- 29324490 TI - Balancing Infection Control and Environmental Protection as a Matter of Patient Safety: The Case of Laryngoscope Handles. PMID- 29324491 TI - Validation of a Second-Generation Near-Infrared Spectroscopy Monitor in Children With Congenital Heart Disease. AB - BACKGROUND: Cerebral oximetry using near-infrared spectroscopy is a noninvasive optical technology to detect cerebral hypoxia-ischemia and develop interventions to prevent and ameliorate hypoxic brain injury. Cerebral oximeters are calibrated and validated by comparison of the near-infrared spectroscopy-measured cerebral O2 saturation (SctO2) to a "field" or reference O2 saturation (REF CX) calculated as a weighted average from arterial and jugular bulb oxygen saturations. In this study, we calibrated and validated the second-generation, 5 wavelength, FORE SIGHT Elite with the medium sensor (source-detector separation 12 and 40 mm) for measurement of SctO2 in children with congenital heart disease. METHODS: After institutional review board approval and written informed consent, 63 children older than 1 month and >=2.5 kg scheduled for cardiac catheterization were enrolled. Self-adhesive FORE-SIGHT Elite medium sensors were placed on the right and left sides of the forehead. Blood samples for calculation of REF CX were drawn simultaneously from the aorta or femoral artery and the jugular bulb before (T1) and shortly after (T2) baseline hemodynamic measurements. FORE-SIGHT Elite SctO2 measurements were compared to the REF CX (REF CX = [0.3 SaO2] + [0.7 SjbO2]) using Deming regression, least squares linear regression, and Bland Altman analysis. RESULTS: Sixty-one subjects (4.5 [standard deviation 4.4] years of age; 17 [standard deviation 13] kg, male 56%) completed the study protocol. Arterial oxygen saturation ranged from 64.7% to 99.1% (median 96.0%), jugular bulb venous oxygen saturation from 34.1% to 88.1% (median 68.2%), the REF CX from 43.8% to 91.4% (median 76.9%), and the SctO2 from 47.8% to 90.8% (median 76.3%). There was a high degree of correlation in SctO2 between the right and left sensors at a given time point (within subject between sensor correlation r = 0.91 and 95% confidence interval [CI], 0.85-0.94) or between T1 and T2 for the right and left sensors (replicates, within subject between time point correlation r = 0.95 and 95% CI, 0.92-0.96). By Deming regression, the estimated slope was 0.966 (95% CI, 0.786-1.147; P = .706 for testing against null hypothesis of slope = 1) with a y intercept of 2.776 (95% CI, -11.102 to 16.654; P = .689). The concordance correlation coefficient was 0.873 (95% CI, 0.798-0.922). Bland-Altman analysis for agreement between SctO2 and REF CX that accounted for repeated measures (both in times and sensors) found a bias of -0.30% (95% limits of agreement: -10.56% to 9.95%). CONCLUSIONS: This study calibrated and validated the FORE-SIGHT Elite tissue oximeter to accurately measure SctO2 in pediatric patients with the medium sensor. PMID- 29324492 TI - Life Cycle Assessment and Costing Methods for Device Procurement: Comparing Reusable and Single-Use Disposable Laryngoscopes. AB - BACKGROUND: Traditional medical device procurement criteria include efficacy and safety, ease of use and handling, and procurement costs. However, little information is available about life cycle environmental impacts of the production, use, and disposal of medical devices, or about costs incurred after purchase. Reusable and disposable laryngoscopes are of current interest to anesthesiologists. Facing mounting pressure to quickly meet or exceed conflicting infection prevention guidelines and oversight body recommendations, many institutions may be electively switching to single-use disposable (SUD) rigid laryngoscopes or overcleaning reusables, potentially increasing both costs and waste generation. This study provides quantitative comparisons of environmental impacts and total cost of ownership among laryngoscope options, which can aid procurement decision making to benefit facilities and public health. METHODS: We describe cradle-to-grave life cycle assessment (LCA) and life cycle costing (LCC) methods and apply these to reusable and SUD metal and plastic laryngoscope handles and tongue blade alternatives at Yale-New Haven Hospital (YNHH). The US Environmental Protection Agency's Tool for the Reduction and Assessment of Chemical and other environmental Impacts (TRACI) life cycle impact assessment method was used to model environmental impacts of greenhouse gases and other pollutant emissions. RESULTS: The SUD plastic handle generates an estimated 16-18 times more life cycle carbon dioxide equivalents (CO2-eq) than traditional low level disinfection of the reusable steel handle. The SUD plastic tongue blade generates an estimated 5-6 times more CO2-eq than the reusable steel blade treated with high-level disinfection. SUD metal components generated much higher emissions than all alternatives. Both the SUD handle and SUD blade increased life cycle costs compared to the various reusable cleaning scenarios at YNHH. When extrapolated over 1 year (60,000 intubations), estimated costs increased between $495,000 and $604,000 for SUD handles and between $180,000 and $265,000 for SUD blades, compared to reusables, depending on cleaning scenario and assuming 4000 (rated) uses. Considering device attrition, reusable handles would be more economical than SUDs if they last through 4-5 uses, and reusable blades 5-7 uses, before loss. CONCLUSIONS: LCA and LCC are feasible methods to ease interpretation of environmental impacts and facility costs when weighing device procurement options. While management practices vary between institutions, all standard methods of cleaning were evaluated and sensitivity analyses performed so that results are widely applicable. For YNHH, the reusable options presented a considerable cost advantage, in addition to offering a better option environmentally. Avoiding overcleaning reusable laryngoscope handles and blades is desirable from an environmental perspective. Costs may vary between facilities, and LCC methodology demonstrates the importance of time-motion labor analysis when comparing reusable and disposable device options. PMID- 29324493 TI - Anesthesia-Guided Palliative Care in the Perioperative Surgical Home Model. PMID- 29324494 TI - Myocardial Protection by Glucose-Insulin-Potassium in Moderate- to High-Risk Patients Undergoing Elective On-Pump Cardiac Surgery: A Randomized Controlled Trial. AB - BACKGROUND: Low cardiac output syndrome is a main cause of death after cardiac surgery. We sought to assess the impact of glucose-insulin-potassium (GIK) to enhance myocardial protection in moderate- to high-risk patients undergoing on pump heart surgery. METHODS: A randomized controlled trial was performed in adult patients (Bernstein-Parsonnet score >7) scheduled for elective aortic valve replacement and/or coronary artery bypass surgery. Patients were randomized to GIK (20 IU of insulin, 10 mEq of potassium chloride in 50 mL of glucose 40%) or saline infusion given over 60 minutes on anesthetic induction. The primary end point was postcardiotomy ventricular dysfunction (PCVD), defined as new/worsening left ventricular dysfunction requiring inotropic support (>=120 minutes). Secondary end points were the intraoperative changes in left ventricular function as assessed by transoesophageal echocardiography, postoperative troponin levels, cardiovascular and respiratory complications, and intensive care unit and hospital length of stay. RESULTS: From 224 randomized patients, 222 were analyzed (112 and 110 in the placebo and GIK groups, respectively). GIK pretreatment was associated with a reduced occurrence of PCVD (risk ratio [RR], 0.41; 95% confidence interval [CI], 0.25-0.66). In GIK-treated patients, the left systolic ventricular function was better preserved after weaning from bypass, plasma troponin levels were lower on the first postoperative day (2.9 ng.mL [interquartile range {IQR}, 1.5-6.6] vs 4.3 ng.mL [IQR, 2.4-8.2]), and cardiovascular (RR, 0.69; 95% CI, 0.50-0.89) and respiratory complications (RR, 0.5; 95% CI, 0.38-0.74) were reduced, along with a shorter length of stay in intensive care unit (3 days [IQR, 2-4] vs 3.5 days [IQR, 2-7]) and in hospital (14 days [IQR, 11-18.5] vs 16 days [IQR, 12.5-23.5]), compared with placebo treated patients. CONCLUSIONS: GIK pretreatment was shown to attenuate PCVD and to improve clinical outcome in moderate- to high-risk patients undergoing on-pump cardiac surgery. PMID- 29324495 TI - Intravenously Administered Lidocaine and Magnesium During Thyroid Surgery in Female Patients for Better Quality of Recovery After Anesthesia. AB - BACKGROUND: Although systemic lidocaine and magnesium have been widely studied as perioperative analgesic adjuvants, they have been rarely evaluated with respect to recovery quality under the same conditions. We compared the quality of recovery 40 (QoR-40) scores of female patients who received intravenous lidocaine, magnesium, and saline during thyroidectomy to investigate their effects on comprehensive recovery from anesthesia. METHODS: In this prospective, double-blind trial, 135 female patients scheduled for open thyroidectomy were randomly assigned to the lidocaine group (group L), magnesium group (group M), or control group (group C). Immediately after induction, lidocaine (2 mg/kg for 15 minutes followed by 2 mg/kg/h) was administered in group L and magnesium sulfate (20 mg/kg over 15 minutes followed by 20 mg/kg/h) was administered in group M. Group C received an equivalent volume of saline. The QoR-40 survey was conducted on postoperative days 1 and 2. RESULTS: The mean global QoR-40 scores on postoperative day 1 were 186.3 (standard deviation, 5.5) in group L, 184.3 (4.7) in group M, and 179.4 (17.8) in group C, and there was a significant difference only between group L and group C (mean difference, 6.9; adjusted P = .018). Among the 5 dimensions of QoR-40, emotional state, physical comfort, and pain were superior in group L compared to group C. CONCLUSIONS: Lidocaine administered intravenously during anesthesia led to better quality of postoperative recovery measured by QoR-40 compared with the group C. Magnesium was found to be insufficient to induce any significant improvement with the dose used in the present study. PMID- 29324496 TI - Efficacy of Ultrasound-Guided Serratus Plane Block on Postoperative Quality of Recovery and Analgesia After Video-Assisted Thoracic Surgery: A Randomized, Triple-Blind, Placebo-Controlled Study. AB - BACKGROUND: The optimal regional technique for analgesia and improved quality of recovery after video-assisted thoracic surgery (a procedure associated with considerable postoperative pain) has not been established. The main objective in this study was to compare quality of recovery in patients undergoing serratus plane block (SPB) with either ropivacaine or normal saline on the first postoperative day. Secondary outcomes were analgesic outcomes, including postoperative pain intensity and opioid consumption. METHODS: Ninety patients undergoing video-assisted thoracic surgery were randomized to receive ultrasound guided SPB with 0.4 mL/kg of either 0.375% ropivacaine (SPB group) or normal saline (control group) after anesthetic induction. The primary outcome was the 40 item Quality of Recovery (QoR-40) score at 24 hours after surgery. The QoR-40 questionnaire was completed by patients the day before surgery and on postoperative days 1 and 2. Pain scores, opioid consumption, and adverse events were assessed for 2 days postoperatively. RESULTS: Eighty-five patients completed the study: 42 in the SPB group and 43 in the control group. The global QoR-40 scores on both postoperative days 1 and 2 were significantly higher in the SPB group than in the control group (estimated mean difference 8.5, 97.5% confidence interval [CI], 2.1-15.0, and P = .003; 8.5, 97.5% CI, 2.0-15.1, and P = .004, respectively). The overall mean difference between the SPB and control groups was 8.5 (95% CI, 3.3-13.8; P = .002). Pain scores at rest and opioid consumption were significantly lower up to 6 hours after surgery in the SPB group than in the control group. Cumulative opioid consumption was significantly lower up to 24 hours postoperatively in the SPB group. CONCLUSIONS: Single-injection SPB with ropivacaine enhanced the quality of recovery for 2 days postoperatively and improved postoperative analgesia during the early postoperative period in patients undergoing video-assisted thoracic surgery. PMID- 29324498 TI - Five Steps to Successfully Implement and Evaluate Propensity Score Matching in Clinical Research Studies. AB - In clinical research, the gold standard level of evidence is the randomized controlled trial (RCT). The availability of nonrandomized retrospective data is growing; however, a primary concern of analyzing such data is comparability of the treatment groups with respect to confounding variables. Propensity score matching (PSM) aims to equate treatment groups with respect to measured baseline covariates to achieve a comparison with reduced selection bias. It is a valuable statistical methodology that mimics the RCT, and it may create an "apples to apples" comparison while reducing bias due to confounding. PSM can improve the quality of anesthesia research and broaden the range of research opportunities. PSM is not necessarily a magic bullet for poor-quality data, but rather may allow the researcher to achieve balanced treatment groups similar to a RCT when high quality observational data are available. PSM may be more appealing than the common approach of including confounders in a regression model because it allows for a more intuitive analysis of a treatment effect between 2 comparable groups.We present 5 steps that anesthesiologists can use to successfully implement PSM in their research with an example from the 2015 Pediatric National Surgical Quality Improvement Program: a validated, annually updated surgery and anesthesia pediatric database. The first step of PSM is to identify its feasibility with regard to the data at hand and ensure availability of data on any potential confounders. The second step is to obtain the set of propensity scores from a logistic regression model with treatment group as the outcome and the balancing factors as predictors. The third step is to match patients in the 2 treatment groups with similar propensity scores, balancing all factors. The fourth step is to assess the success of the matching with balance diagnostics, graphically or analytically. The fifth step is to apply appropriate statistical methodology using the propensity-matched data to compare outcomes among treatment groups.PSM is becoming an increasingly more popular statistical methodology in medical research. It often allows for improved evaluation of a treatment effect that may otherwise be invalid due to a lack of balance between the 2 treatment groups with regard to confounding variables. PSM may increase the level of evidence of a study and in turn increases the strength and generalizability of its results. Our step-by-step approach provides a useful strategy for anesthesiologists to implement PSM in their future research. PMID- 29324497 TI - Complications Associated With Mortality in the National Surgical Quality Improvement Program Database. AB - BACKGROUND: Attributing causes of postoperative mortality is challenging, as death may be multifactorial. A better understanding of complications that occur in patients who die is important, as it allows clinicians to focus on the most impactful complications. We sought to determine the postoperative complications with the strongest independent association with 30-day mortality. METHODS: Data were obtained from the 2012-2013 National Surgical Quality Improvement Program Participant Use Data Files. All inpatient or admit day of surgery cases were eligible for inclusion in this study. A multivariable least absolute shrinkage and selection operator regression analysis was used to adjust for patient pre- and intraoperative risk factors for mortality. Attributable mortality was calculated using the population attributable fraction method: the ratio between the odds ratio for mortality and a given complication in the population. Patients were separated into 10 age groups to facilitate analysis of age-related differences in mortality. RESULTS: A total of 1,195,825 patients were analyzed, and 9255 deceased within 30 days (0.77%). A complication independently associated with attributable mortality was found in 1887 cases (20%). The most common causes of attributable mortality (attributable deaths per million patients) were bleeding (n = 368), respiratory failure (n = 358), septic shock (n = 170), and renal failure (n = 88). Some complications, such as urinary tract infection and pneumonia, were associated with attributable mortality only in older patients. DISCUSSION: Additional resources should be focused on complications associated with the largest attributable mortality, such as respiratory failure and infections. This is particularly important for complications disproportionately impacting younger patients, given their longer life expectancy. PMID- 29324499 TI - Adding to Our Competitive Advantage: Making the Case for Teaching Communication and Professionalism. PMID- 29324500 TI - Hydroxyethyl Starch 130/0.4 and Its Impact on Perioperative Outcome: A Propensity Score Matched Controlled Observation Study. AB - BACKGROUND: Adverse effects of hydroxyethyl starches (HESs) have been verified in patients suffering from sepsis or kidney disease, but not in surgical patients at large. The investigation aimed to determine whether the use of HES 130/0.4 was associated with the incidence of acute postinterventional adverse events compared to Ringer's acetate alone in a perioperative setting. METHODS: This propensity score matched, controlled observational study was performed in a single-centre university hospital. The perioperative data of 9085 patients were analyzed. Group matching was based on 13 categories including demographic data, type of procedure, and 5 preexisting comorbidities. Duration of procedure and intraoperative transfusion requirements were integrated in the matching process to reduce selection and indication bias. The primary outcome was incidence of postoperative kidney failure. Secondary outcomes were in-hospital mortality, fluid requirements, blood loss, hemodynamic stability, and the need for postoperative intensive care unit (ICU) treatment. RESULTS: The administration of HES 130/0.4 was not associated with an increased frequency of postoperative kidney failure. In-hospital mortality (Ringer's acetate: 2.58%; HES 130/0.4: 2.68%) and the need for ICU care (Ringer's acetate: 30.5%; HES 130/0.4: 34.3%) did not differ significantly between groups. Significant intergroup differences were observed for mean blood loss (Ringer's acetate: 406 +/- 821 mL; HES 130/0.4: 867 +/- 1275 mL; P < .001) and median length of hospital stay (Ringer's acetate: 10.5 (5/17) days; HES 130/0.4: 12.0 (8/19) days; P < .001). CONCLUSIONS: An association between intraoperative HES therapy and postoperative kidney failure was not observed in a mixed cohort of elective surgical patients. In addition, HES 130/0.4 was not associated with an increased morbidity or the need for ICU therapy in this propensity score matched study. PMID- 29324501 TI - Nonpharmacologic Management of Acute Singultus (Hiccups). PMID- 29324502 TI - In Response. PMID- 29324503 TI - alpha-Asarone Alleviated Chronic Constriction Injury-Induced Neuropathic Pain Through Inhibition of Spinal Endoplasmic Reticulum Stress in an Liver X Receptor Dependent Manner. AB - BACKGROUND: Neuropathic pain is an intractable and complex disease. Recent studies have shown a close relationship between endoplasmic reticulum (ER) stress and neuropathic pain. Here, we investigated the effect of alpha-asarone, an ER stress inhibitor, on chronic constriction injury (CCI)-induced neuropathic pain. METHODS: Two parts were included in this study. In part 1, rats were assigned to 7 groups: the sham group, the sham + alpha-asarone 20 mg/kg group, the CCI group, the CCI + vehicle group, the CCI + alpha-asarone 5 mg/kg group, the CCI + alpha asarone 10 mg/kg group, and the CCI + alpha-asarone 20 mg/kg group. After surgery, the rats were treated with alpha-asarone or normal saline daily. Pain thresholds were measured, and samples of the L3-6 spinal cord were taken for western blotting and immunofluorescence on day 7. In part 2, rats were intrathecally implanted with PE-10 tubes and divided into 4 groups: the CCI + alpha-asarone 20 mg/kg group, the CCI + alpha-asarone 20 mg/kg + vehicle group, the CCI + alpha-asarone 20 mg/kg + SR9243 group, and the CCI group. Five rats in each group were separated for behavioral tests 1 hour after intrathecal injection. The rest of them were killed for western blotting on day 7. RESULTS: In this study, CCI surgery significantly induced mechanical allodynia and thermal hyperalgesia. CCI surgery significantly induced activation of ER stress (PERK eIF2alpha, IRE1alpha, CHOP, and XBP-1s) in rats. However, treatment with 20 mg/kg of alpha-asarone significantly alleviated CCI-induced activation of ER stress. Behavioral results showed that daily treatment with 20 mg/kg of alpha-asarone significantly alleviated CCI-induced nociceptive behaviors, on day 7 (mechanical allodynia, P = .016, 95% confidence interval, 0.645-5.811; thermal hyperalgesia, P = .012, 95% confidence interval, 0.860-6.507). Furthermore, alpha-asarone induced upregulated expression of liver X receptor beta (LXRbeta) and downstream proteins in the spinal cord. The LXR antagonist SR9243 completely inhibited the anti-ER stress and antinociceptive effects of alpha-asarone in rats. CONCLUSIONS: alpha-Asarone relieved CCI-induced neuropathic pain in an LXR-dependent manner. alpha-Asarone may be a potential agent for treatment of neuropathic pain. PMID- 29324504 TI - Aspergillus and other respiratory fungal infections in the ICU: diagnosis and management. AB - PURPOSE OF REVIEW: Filamentous fungi respiratory infections, namely because of Aspergillus, Mucorales, Fusarium, or Scedosporium, show rising incidence and occur more in populations which are not classically immunosuppressed. This and their persistent dismal prognosis are the focus of this review. RECENT FINDINGS: Both an early diagnosis, rooted on a high level of suspicion and based on clinical picture, radiology, cultural microbiological exams, fungal biomarkers, PCR and biopsy, and an early therapy, including immunorecovery, whenever possible, good antifungal selection, and surgery for source control, are paramount to maximize the outcome in these diseases. An evolving antifungal armamentarium and a more Pharmacokinetics/Pharmacodynamics-based antifungal prescription may help to improve the prognosis. SUMMARY: Improved awareness of these infections may increase the level of suspicion, promoting early diagnosis and treatment, ideally supported with expert stewardship. PMID- 29324505 TI - When to switch to an oral treatment and/or to discharge a patient with skin and soft tissue infections. AB - PURPOSE OF REVIEW: Skin and soft tissue infections prevalence is increasing and represent a frequent cause of hospital admission. New guidelines have become available in order to better define these infections and their response to antimicrobial treatment. Gram-positive bacteria, in particular Staphylococcus aureus, remain the most frequently isolated pathogens in skin and soft tissue infections. To treat complicated forms and infections caused by drug-resistant bacteria, hospital admission and administration of intravenous antibiotics are often required, impacting on healthcare costs and patients' morbidity. RECENT FINDINGS: New therapeutic options offer efficacy against drug-resistant Gram positive bacteria as well as potential to favor early patients' discharge, including the possibility for intravenous to oral switch and infrequent drug administration because of prolonged drug half-life. Although data from real-world studies on new antimicrobials is awaited, clinicians need clear direction on how to optimize the treatment of skin and soft tissue infections in order to avoid prolonged hospitalizations and extra costs. Early assessment of patient's clinical conditions and response to treatment appear useful in order to facilitate patients' discharge. SUMMARY: We have reported the evidence for early intravenous to oral switch and early hospital discharge for patients with skin and soft tissue infections. New therapeutic options that represent promising tools in promoting an optimized management of these infections have also been reviewed. PMID- 29324506 TI - A pilot mixed-methods evaluation of MS INFoRm: a self-directed fatigue management resource for individuals with multiple sclerosis. AB - Fatigue management interventions for individuals with multiple sclerosis (MS) often feature structured programmes requiring repeated, in-person attendance that is not possible for all individuals. We sought to determine whether MS INFoRm, a self-directed fatigue management resource for individuals with MS, was worth further, more rigorous evaluation. Our indicators of worthiness were actual use of the resource by participants over 3 months, reductions in fatigue impact and increases in self-efficacy, and participant reports of changes in fatigue management knowledge and behaviours. This was a single-group, mixed-methods, before-after pilot study in individuals with MS reporting mild to moderate fatigue. Thirty-five participants were provided with MS INFoRm by a USB flash drive to use at home for 3 months, on their own volition. Twenty-three participants completed all standardized questionnaires, semi-structured interviews and study process measures. Participants reported actively using MS INFoRm over the 3-month study period (median total time spent using MS INFoRm=315 min) as well as significantly lower overall fatigue impact (Modified Fatigue Impact Scale: t=2.6, P=0.01), increased knowledge of MS fatigue (z=-2.8, P=0.01) and greater confidence in managing MS fatigue (z=-3.3, P=0.001). Individuals with significant reductions in fatigue impact also reported behavioural changes including tracking fatigue, better communication with others, greater awareness, improved quality of life and being more proactive. This study provides evidence that further rigorous evaluation of MS INFoRm, a self-directed resource for managing fatigue, is worth pursuing. PMID- 29324507 TI - Determining when to stop antiepileptic drug treatment. AB - PURPOSE OF REVIEW: As the number of patients diagnosed with epilepsy continues to rise and the pharmacological and device-based treatment options for epilepsy increase, determining when to stop antiepileptic drug (AED) treatment continues to be an important issue for patient management and counseling. RECENT FINDINGS: This review focuses on outcomes following AED withdrawal in seizure-free adults with epilepsy. Practical considerations are also discussed because, despite the importance of this topic, relatively little progress has been made in the past year regarding the identification of patients whose risk for recurrent seizures after AED withdrawal is no higher than that of the general population. SUMMARY: Although articles in the past year have updated the debates about whether and when to discontinue AEDs in seizure-free adults and have suggested potential utility for electroencephalograms as a prognostic tool for AED reduction as well as for an AED withdrawal risk calculator, decisions about AED withdrawal should still be based on the known risks and consequences of seizure recurrence and be made following well documented discussions between doctor and patient/carer. PMID- 29324508 TI - Comparison of human coagulation factor VIII expression directed by cytomegalovirus and mammary gland-specific promoters in HC11 cells and transgenic mice: Retraction. PMID- 29324509 TI - Investigating the Relationship of the Functional Gait Assessment to Spatiotemporal Parameters of Gait and Quality of Life of Individuals With Stroke. AB - BACKGROUND AND PURPOSE: Walking in the community is an important aspect of independence and quality of life (QOL) that poses challenges for individuals with stroke. This study investigated whether performance on the Functional Gait Assessment (FGA) differentiated spatiotemporal gait parameters, QOL, and fall history of community-ambulating individuals with stroke. We hypothesized that those scoring higher on the FGA would present with better gait speed and cadence, stride width and length, and improved load time on the paretic limb, report a higher QOL, and be less likely to have a fall history than those who scored lower on the FGA. METHODS: Participants were screened for cognitive impairment and the ability to walk independently. Participant demographics and stroke characteristics were recorded. The Falls Risk for Older People in the Community (FROP-Com) screening tool determined whether the participant had incurred 1 or more falls within the preceding 12 months. The FGA provided a composite measure of gait with varied walking tasks challenging different aspects of walking. The total score was recorded. The GAITRite instrumented-walkway was used to acquire high-resolution footfall data during performance of the first 9 FGA walking tasks. The Assessment of Quality of Life-6D (AQoL-6D) was used to measure health related QOL across the domains of independent living, mental health, coping, relationships, pain, and senses. Pearson and Spearman correlations were used to check for correlations between FGA score and the demographic characteristics, AQoL-6D scores, and 12-month fall history. Pearson correlations were used to check for correlations between FGA score and multiple spatiotemporal gait parameters for each FGA item. RESULTS AND DISCUSSION: A sample of 29 volunteers who were community-ambulating individuals with stroke was recruited. Participants had a mean age of 62.31 (10.89) years, mean time since stroke of 3.78 (4.10) years, and included both males and females (52% male). Individuals presented with both left- and right-sided strokes. FGA score correlated positively with velocity, cadence, and step length, and negatively with stride width, double support percent, and single-support variability (P = .001 to P = .031). FGA score correlated positively with the AQoL-6D dimension of independent living. FGA score correlated significantly with the FROP-Com screening tool predicted fall risk, but not with fall history. CONCLUSIONS: The FGA is a clinical measure of functional gait performance that reflected spatiotemporal gait parameters and ability of individuals with chronic stroke to live independently. The FGA could be used to target interventions to improve functional gait performance of individuals with chronic stroke. PMID- 29324510 TI - Reliability and Validity of Computerized Force Platform Measures of Balance Function in Healthy Older Adults. AB - BACKGROUND AND PURPOSE: Postural control declines with aging and is an independent risk factor for falls in older adults. Objective examination of balance function is warranted to direct fall prevention strategies. Force platform (FP) systems provide quantitative measures of postural control and analysis of different aspects of balance. The purpose of this study was to examine the reliability and validity of FP measures in healthy older adults. METHODS: This study enrolled 46 healthy elderly adults, mean age 67.67 (5.1) years, who had no history of falls. They were assessed on 3 standardized tests on the NeuroCom Equitest FP system: limits of stability (LOS), motor control test (MCT), and sensory organization test (SOT). The test battery was administered twice within a 10-day period for test-retest reliability; intraclass correlation coefficients (ICCs), standard error of measurement (SEM), and minimal detectable change based on a 95% confidence interval (MDC95) were calculated. FP measures were compared with criterion clinical balance (Mini-BESTest and Functional Gait Assessment) and gait (10-m walk and 6-minute walk) measures to examine concurrent validity using Pearson correlation coefficients. Multiple linear regression analysis examined whether age and activity level were associated with FP performance. The alpha level was set at P < .05. RESULTS: SOT composite equilibrium scores, MCT average latency, and LOS end point excursion measures all demonstrated excellent test-retest reliability (ICC = 0.90, 0.85, and 0.77, respectively), whereas moderate to good reliability was found for SOT vestibular ratio score (ICC = 0.71). There was large variability in performance in this healthy elderly cohort, resulting in relatively large MDC95 for these measures, especially for the LOS test. Fair correlations were found between LOS end point excursion and clinical balance and gait measures (r = 0.31-0.49), and between MCT average latency and gait measures only (r = -0.32). No correlations were found between SOT measures and clinical balance and gait measures. Age was only marginally significantly (P = .055) associated with LOS end point excursion but was not associated with SOT or MCT measures, and activity level was not associated with any of the FP measures. CONCLUSION: FP measures provided reliable information on balance function in healthy older adults; however, small learning effects were evident, particularly for the SOT. The SEM and MDC95 for the LOS and SOT measures were relatively large for this healthy elderly cohort. A relationship between FP measures, which assess underlying balance mechanisms, and clinical balance and gait measures was not strongly supported in this study. Further research is needed to justify the value of adding FP measures to a test battery for balance assessment in older adults without a history of falls. PMID- 29324511 TI - Evolutionary Improvements in the Jarvik 2000 Left Ventricular Assist Device. AB - Mechanical circulatory support devices experience a wide range of operating conditions during patient use. Since its first implant in June 2000, the Jarvik 2000 left ventricular assist device has witnessed systematic stepwise modifications to reduce the risk of serious adverse events and improve patient outcomes. Over time, clinical experience revealed a number of low-incidence failure modes that presented opportunities for improvement. Design changes have included, but are not limited to, a Y cable to permit battery changes without pump stoppage, increased pull strength of external cables from 35 to 200 lbs, an intermittent low-speed controller to improve aortic root washout, sintered titanium microsphere surface on the pump housing to prevent apical thrombus, and novel cone bearings to reduce thrombus formation. In summary, real world conditions challenge devices in ways that laboratory or animal experiments do not. Thorough case reviews have led to many improvements as the Jarvik 2000 continues through its second decade of implants. PMID- 29324512 TI - Exercise Capacity in Patients with the Total Artificial Heart. AB - There is a dearth of information regarding the functional abilities of patients with the total artificial heart (TAH). Increased utilization of the TAH and patient discharge to home with the portable unit necessitates a shift in focus to quality of life, which includes quantifying and ultimately optimizing functional capacity. To date, only single-patient case studies have described the exercise response of the TAH patient. Fourteen patients with the TAH underwent cardiopulmonary exercise testing with concurrent analysis of TAH device function. All device settings remained fixed during testing. Peak oxygen consumption (VOO2; 0.872 L/min [interquartile range (IQR) = 0.828-1.100 L/min]), percent predicted peak VOO2 (36% [IQR = 32-42%]), and ventilatory anaerobic threshold (0.695 L/min [IQR = 0.542-0.845 L/min]) were markedly reduced in the TAH compared with predicted normal values. Determinants of VOO2 using device-generated hemodynamics revealed a blunted cardiac output (+9% increase) and exaggerated oxygen extraction with exercise. Peak VOO2 strongly correlated with resting (R = +0.548, p = 0.045), ventilatory anaerobic threshold (R = +0.780, p = 0.001), and peak exercise cardiac output (R = +0.672, p = 0.008). Patients with the TAH have significantly impaired exercise performance. The limitations to cardiopulmonary exercise testing performance appear to be related to limited ability of the pump to modulate output for activity and reduced oxygen carrying capacity. PMID- 29324513 TI - The Functional Immune Response of Patients on Extracorporeal Life Support. AB - Extracorporeal life support (ECLS) is a widely used lifesaving technology. Whether ECLS results in immune dysregulation is unclear. This study's aim was to examine whether ECLS affected innate immune response. All patients placed on ECLS were eligible. Blood was obtained before, during, and after ECLS. Function of the innate immune system was measured by ex vivo lipopolysaccharide (LPS)-induced tumor necrosis factor-alpha (TNF-alpha) and plasma cytokine levels (interleukin [IL]-6, IL-8, IL-10, and TNF-alpha). Immunoparalysis was defined as ex vivo TNF alpha levels less than 200 pg/ml. Nineteen patients were enrolled with twelve <18 years old. Median ECLS duration was 10 days (range: 3-108); nine patients died. After stratifying the cohort by the presence of immunoparalysis before ECLS, those immunoparalyzed showed increased response to LPS on days 1 and 3 (p = 0.016). Those without pre-ECLS immunoparalysis showed a transient decrease in response on day 3 (p = 0.008). Plasma IL-10 levels were elevated in those with pre-ECLS immunoparalysis and dropped significantly by day 1 (p = 0.031). The number treated with steroids was similar in the two groups. In conclusion, patients with immunoparalysis before ECLS showed a gradual increase in immune function during ECLS, whereas those without immunoparalysis had a transient decrease in responsiveness on day 3. PMID- 29324514 TI - Anticoagulant Bridge Comparison in Mechanical Circulatory Support Patients. AB - Maintaining mechanical circulatory support (MCS) device patients in a specified therapeutic range for anticoagulation remains challenging. Subtherapeutic international normalized ratios (INRs) occur frequently while on warfarin therapy. An effective anticoagulant bridge strategy may improve the care of these patients. This retrospective review of MCS patients with subtherapeutic INRs compared an intravenous unfractionated heparin (UFH) strategy with a subcutaneous enoxaparin or fondaparinux strategy. Native thromboelastography (n-TEG) was used to evaluate anticoagulant effect with coagulation index (CI) as the primary outcome measure. Enoxaparin 0.5 mg/kg SC q12hrs or fondaparinux 2.5-5 mg SC daily were compared with an initial UFH rate of 5 units/kg/hr and titrated to stated n TEG goal range. The anticoagulant groups UFH, enoxaparin, and fondaparinux were found to be statistically similar with regard to frequency in n-TEG goal range, above range (hypercoagulability), or below range (hypocoagulability). Clinical outcomes were similar among groups with three gastrointestinal bleeds in UFH, one in enoxaparin, and one in fondaparinux groups. Device thrombosis occurred in one UFH patient, while UFH and fondaparinux groups had one ischemic cerebrovascular accident event each. These strategies provided comparable n-TEG results and clinical outcomes when compared with intravenous UFH. Low-dose enoxaparin or fondaparinux may provide an alternative anticoagulant bridging option in MCS patients presenting with subtherapeutic INR. PMID- 29324515 TI - Acute Cor Pulmonale in Veno-Venous Extracorporeal Membrane Oxygenation: Three Case Reports. AB - A retrospective review of three patients with acute respiratory distress syndrome (ARDS) and normal baseline right ventricular function admitted to the Cardiac Surgery Intensive Care Unit whom developed acute cor pulmonale while on veno venous extracorporeal membrane oxygenation. These patients were diagnosed with ARDS using Berlin Criteria definitions and cannulated with a dual lumen (Avalon) cannula. Despite variations in history, presentation, and course, findings of acute cor pulmonale were encountered 4 to 6 weeks after extracorporeal membrane oxygenation cannulation. The potential mechanisms include thromboembolic burden to the pulmonary vasculature, hypoxemia, acidosis, the pathologic progression of ARDS, and chronic nonphysiologic flow to the right heart. PMID- 29324516 TI - Implants With and Without Laser-Microtextured Collar: A 10-Year Clinical and Radiographic Comparative Evaluation. AB - INTRODUCTION: This article reports, after at least 10 years of follow-up, the comparative data of marginal bone loss (MBL) and periimplant soft tissue parameters, around implant with and without laser-microtextured (L) collar surface, previously reported at 3 years of follow-up. MATERIALS AND METHODS: Twenty implants with L collar surface (test) were placed adjacent to 20 control implants with machined (M) collar surface in 15 partially edentulous patients, who were followed up for at least 10 years as part of a prospective longitudinal study. The plaque score, bleeding on probing (BoP) score, and probing depth (PD) were recorded at baseline and at each year follow-up examination. Mucosal recession (MR), and radiographic MBL were assessed at baseline and after at least 10 years. RESULTS: Four patients were lost during follow-up, so the number of implants that have been followed for at least 10 years was 32 (16 tests and 16 controls). At the end of the follow-up period, no significant differences were found between the study groups regarding the presence of plaque and BoP (P > 0.05). A statistically significant difference between test and control implant was found for mean PD (2.3 +/- 0.7 mm vs 3.8 +/- 0.8), MBL (1.23 +/- 0.21 mm vs 2.8 +/- 0.9 mm), and mean MR (1.08 +/- 0.4 mm vs 2.46 +/- 0.3 mm). CONCLUSION: Results suggest that after at least 10 years of function, implants with laser microtexturing (L) collar surface, compared with implants with machined surface, lead to lower MBL and PD. PMID- 29324517 TI - Long-term care of transplant recipients: de novo neoplasms after liver transplantation. AB - PURPOSE OF REVIEW: Since the first liver transplantation in the early 1960s, there have been significant improvements in the recipients' long-term outcome. Patients who have undergone transplantation are exposed to a high risk of developing neoplastic disease, not only because of their chronic immunosuppression, but also related to physiological aging, lifestyle, chronic viral infections, liver disease cause, and carcinogenic immunosuppressants. The present review covers the latest and most relevant data on de novo neoplasms after liver transplantation, and discusses their implications for clinical practice. RECENT FINDINGS: Given the impact of de novo neoplasms, in terms of morbidity and mortality, transplant teams must be prepared to diagnose and treat these conditions promptly. Dedicated cancer screening protocols are warranted. Although surveillance strategies are based on data concerning the general population, they should be customized in the light of each transplant recipient's risk factors. The resulting risk stratification is crucially important to the design of early intervention programs, and for addressing the modulation of individualized immunosuppressive regimens. SUMMARY: De novo malignancies are a significant issue for the liver transplant population, but targeted screening programs have shown that survival rates similar to those of nonimmunosuppressed patients can be achieved. New oncological surveillance strategies covering the prophylaxis, monitoring, and treatment of de novo neoplasms should take high priority in clinical research. PMID- 29324518 TI - The dawn of liver perfusion machines. AB - PURPOSE OF REVIEW: Despite high demand, a severe shortage of suitable allografts limits the use of liver transplantation for the treatment of end-stage liver disease. The transplant community is turning to the utilization of high-risk grafts to fill the void. This review summarizes the reemergence of ex-vivo machine perfusion for liver graft preservation, including results of recent clinical trials and its specific role for reconditioning DCD, steatotic and elderly grafts. RECENT FINDINGS: Several phase-1 clinical trials demonstrate the safety and feasibility of machine perfusion for liver graft preservation. Machine perfusion has several advantages compared with static cold storage and may provide superior transplantation outcomes, particularly for marginal grafts. Ongoing multicenter trials aim to confirm the results of preclinical and pilot studies and establish the clinical utility of ex-vivo liver machine perfusion. SUMMARY: Mounting evidence supports the benefits of machine perfusion for preservation of liver grafts. Thus, machine perfusion is a promising strategy to expand the donor pool by reconditioning and assessing viability of DCD, elderly and steatotic grafts during the preservation period. Additionally, machine perfusion will serve as a platform to facilitate graft intervention and modification to further optimize marginal grafts. PMID- 29324519 TI - Cigarette smoking, alcohol drinking, and oral cavity and pharyngeal cancer in the Japanese: a population-based cohort study in Japan. AB - The effects of cigarette smoking and alcohol drinking on the incidence of oral cavity and pharyngeal cancer (OCPC) in the Asian population have been poorly understood. To assess the effects of cigarette smoking, alcohol drinking, and facial flushing response on incidence of OCPC, a total of 95 525 middle-aged and older eligible individuals were followed in a large-scale population-based cohort study in Japan from 1990 to 2010. In this study, the person-years of observation were 698 006 in men and 846 813 in women, and a total of 222 cases (men=160, women=62) of OCPC were newly diagnosed during the study period. A multivariate Cox proportional-hazards model was used to assess the incidence risk of OCPC and subsites by cigarette smoking and alcohol drinking. The result showed that cigarette smoking and regular alcohol drinking were associated significantly with the incidence of OCPC in men. Compared with nonsmokers and nondrinkers, current male smokers showed a hazard ratio (HR) of 2.37 [95% confidence interval (CI)=1.51-3.70] and regular male drinkers showed an HR of 1.82 (95% CI=1.20 2.76). Cigarette smoking also increased the risk of OCPC among male heavy alcohol drinkers (HR=4.05, 95% CI=2.31-7.11). However, there was no significant association between facial flushing response and OCPC. In conclusion, cigarette smoking and alcohol drinking are independent risk factors for OCPC and its subsites in the male Japanese population. PMID- 29324520 TI - Vergence responses to face stimuli in young children. AB - In line with a possible role of vergence in orienting visual attention, we sought to study this eye movement in young children to provide insights on face perception. For this purpose, we measured the modulation in the angle of eye vergence in a sample of 39 children aged 6-36 months and compared it when presenting static human face images versus their scrambled version. We observed enhanced vergence responses to faces compared with scrambled images. Our data suggest a role of eye vergence in face processing. PMID- 29324521 TI - The Efficacy of Transcranical Direct Current Stimulation in Pregabalin Abuse: A Case Report. PMID- 29324522 TI - How Does Repetitive Transcranial Magnetic Stimulation Influence the Brain in Depressive Disorders?: A Review of Neuroimaging Magnetic Resonance Imaging Studies. AB - OBJECTIVE: Repetitive transcranial magnetic stimulation (rTMS) is a nonpharmacological technique used to stimulate the brain. It is a safe and proven alternative tool to treat resistant major depressive disorders (MDDs). Neuroimaging studies suggest a wide corticolimbic network is involved in MDDs. We researched observable changes in magnetic resonance imaging induced by rTMS to clarify the operational mechanism. METHODS: A systematic search of the international literature was performed using PubMed and Embase, using papers published up to January 1, 2017. The following MESH terms were used: (depression or major depressive disorder) and (neuroimaging or MRI) and (rTMS or repetitive transcranial magnetic stimulation). We searched the databases using a previously defined strategy to identify potentially eligible studies. RESULTS: Both structural and functional changes were observed on magnetic resonance imagings performed before and after rTMS. Various areas of the brain were impacted when rTMS was used. Although the results were very heterogeneous, a pattern that involved the anterior cingulate cortex and the prefrontal cortex emerged. These are known to be regions of interest in MDDs. However, the various parameters used in rTMS make any generalization difficult. CONCLUSIONS: Repetitive transcranial magnetic stimulation helps to treat MDDs with good efficacy. Its effect on the brain, as observed in several neuroimaging studies, seems to impact on the structural and functional features of several networks and structures involved in major depressive disorders. PMID- 29324523 TI - Towards International Standards: East Meets West. PMID- 29324524 TI - ECT and Pronounced Impairment in Spatial Cognition: The Fallacy of Drawing Conclusions From a Single Case. AB - INTRODUCTION: Electroconvulsive therapy (ECT) is associated with memory deficits on neuropsychological assessment. The association of ECT with nonmemory cognitive deficits has been poorly studied. METHODS: We present a 40-year-old woman who showed a bizarre form of spatial cognition impairment on a subtest of the Tactual Performance Test (TPT) after recovering from depression with 6 alternate day, thrice-weekly, inpatient ECT treatments. This woman was part of a naturalistic, nonblind study that examined nonmemory cognitive deficits in antidepressant treated depressed patients who did and did not receive ECT. RESULTS: The impairment was in the form of bizarrely drawn reproductions of differently shaped wooden blocks that had been presented to the patient when she was blindfolded. The impairment was still evident when she was retested (3 hours later) under substantially simplified conditions but was much attenuated approximately 2.5 weeks later. CONCLUSIONS: On the surface, it seems that ECT had induced severe impairment in spatial cognition and that the impairment showed the familiar pattern of attenuation with the passage of time. However, another recovered patient in the study, who did not receive ECT, also showed substantial spatial deficits on the same subtest of the TPT, and the attenuation of the deficits across time in the ECT-treated patient was probably a result of repeated exposure to the task. We suggest that not all patients who seem to experience spectacular cognitive impairment after ECT have deficits that are attributable to ECT. PMID- 29324525 TI - Pharmacy Students' Preparedness to Communicate With Mental Health Disorders Patients. AB - The aim of this project was to explore whether fourth-year pharmacy students in England are prepared to communicate with mental health patients. Mental health problems are rising in the United Kingdom, affecting around one in four people. A questionnaire-based study measured the knowledge about and attitude toward mental health problems. Participants were fourth-year pharmacy students from two west midlands universities. More males than females correctly answered the "attitude towards mental health" questions. However, overall, only 45.5% of students answered the "attitude towards mental health problems" questions correctly. Males demonstrated a better level of knowledge than females, with 33% overall answering 6 or more questions of the 13 knowledge questions correctly. Sixty-five percent of participants scored under 50%. The highest total score was 81%, and the lowest was 19%, three people did not answer any questions. In conclusion, a gap in knowledge was identified within the fourth-year pharmacy student cohort, and more intervention will be required to improve knowledge and attitudes such as the Mental Health First Aid courses. PMID- 29324526 TI - Do Professional Society Advocacy Campaigns Have an Impact on Pediatric Orthopaedic Injuries? AB - PURPOSE: The American Academy of Orthopaedic Surgeons (AAOS) and the American Academy of Pediatrics (AAP) both advocate for childhood injury prevention by publishing recommendations to orthopaedic surgeons, pediatricians, and the public. Popular topics of advocacy campaigns have included trampolines, all terrain vehicles (ATVs), and lawnmowers. The purpose of this study was to investigate the temporal relationship between AAOS/AAP advocacy and pediatric orthopaedic injury rates, using these topics as examples. We hypothesized that pediatric orthopaedic injury rates decline in years, following related AAOS/AAP recommendations. METHODS: A retrospective review of fractures associated with trampolines, lawnmowers, and ATVs among patients aged 2 to 18 years from 1991 to 2014 was performed using the National Electronic Injury Surveillance System (NEISS). Fracture rates and percent changes year-to-year were calculated. A timeline of AAOS and AAP advocacy statements published on the products was created. RESULTS: Trampoline-related fractures rose 14% yearly from 1991 to 1999, reached a plateau from 1999 to 2003, corresponding with a 1999 AAP statement. Injury rates dropped 4.3% from 2006 to 2010 after 2005 and 2006 statements, and reached another plateau thereafter, as 2010 and 2012 statements were published. ATV-related fractures rose 14% yearly between 1997 and 2002, then dropped 15% from 2007 to 2010 following yearly AAP or AAOS statements from 2004 to 2007. From 2010 to 2014, the injury rate held constant during which time 2010, 2013, and 2014 statements were published. Lawnmower injury rates did not fall despite statements in 1998 and 2001 and a poster campaign in 2001. A 25% drop from 2007 to 2008 coincided with an AAOS statement in 2008. Fracture rates further dropped 31% from 2009 to 2011 and 21% from 2012 to 2014, amidst 2012 and 2014 statements. For ATV-related and lawnmower-related injuries, more male individuals were affected than female individuals, and for ATVs alone, injury rates increased with age. CONCLUSIONS: Although AAOS/AAP statements did not universally coincide with dropping fracture rates, statements often were associated with substantial decreases in following years. This is likely because injury prevention messages are dispersed from providers to the public over time and outcomes depend on highly variable patient behaviors. LEVEL OF EVIDENCE: Level V-systematic review of descriptive data. PMID- 29324528 TI - Titanium Elastic Nailing has Superior Value to Plate Fixation of Midshaft Femur Fractures in Children 5 to 11 Years. AB - BACKGROUND: American Academy of Orthopaedic Surgeons (AAOS) Clinical Practice Guidelines for pediatric femoral shaft fractures indicate titanium elastic nails (TENs) for children 5 to 11 years old. Growing evidence suggests these fractures may also be treated with open or submuscular plating. The purpose of this study was to compare estimated blood loss (EBL), operative time, fluoroscopy time, cost, and subjective and objective pain scores between TENs and plating techniques used in 5- to 11-year-old children with midshaft femur fractures based on length stability. We hypothesized that EBL, operative time, and fluoroscopy time would be greater and pain would be lower with plate fixation. METHODS: We retrospectively identified all pediatric midshaft femur fractures treated with TENs, submuscular plating, or open plating between 2004 and 2014. Demographic, injury, and surgical data were obtained for analysis. Cost data were obtained from Synthes Inc. Outcomes were determined using the TEN outcome scoring system. Variables were compared between the 3 fixation methods using paired t tests or Fisher exact test as appropriate. Cost data were compared with Mann-Whitney nonparametric test. RESULTS: There were 65 midshaft femur fractures in 63 patients included. TENs accounted for 77% and plating 23%. There were no statistical differences in injury severity score, length of stay, length unstable fractures, open fractures, fluoroscopy time, or pain. However, there was a significantly greater operative time (P=0.007) and a notably greater EBL (P=0.057) for the plating technique compared with TENs. Patient outcomes were found to be equivalent. Implant cost was not significantly different although increased surgical costs were seen in plating (P=0.0007). CONCLUSIONS: This study supports the use of TENs or plating for midshaft femur fractures in children 5 to 11 years old, regardless of length stability. The use of plates resulted in higher EBL, longer operative time, increased cost, and equivalent pain compared with TENs. To our knowledge, this study represents the first direct comparison of the common fixation methods specifically for midshaft femur fractures and favors the use of TENs. LEVEL OF EVIDENCE: Level III. PMID- 29324527 TI - Distal Femoral Valgus and Recurrent Traumatic Patellar Instability: Is an Isolated Varus Producing Distal Femoral Osteotomy a Treatment Option? AB - BACKGROUND: Genu valgum, a risk factor for recurrent patellofemoral instability, can be addressed with a varus producing distal femoral osteotomy (DFO). The purpose of this study is to report 3-year clinical and radiographic outcomes on a series of skeletally mature adolescents with traumatic patellofemoral instability and genu valgum who underwent a varus producing DFO. METHODS: Consecutive patients (n=11) who underwent an isolated DFO for recurrent traumatic patellar instability over a 4-year study period (2009 to 2012) were reviewed. All patients were below 19 years of age, skeletally mature, had >=2 patellar dislocations, genu valgum (>= zone II mechanical axis) and failed nonoperative treatment. Exclusion criteria included less than three-year follow-up, congenital or habitual patellar instability, osteotomy indicated for pathology other than patellar instability, or biplanar osteotomies. Demographic, clinical, and radiographic data were retrospectively analyzed. Recurrence of instability and outcome measures (Kujala and Tegner Activity Scale) were collected at final followed-up prospectively. RESULTS: Ten of 11 patients (average age, 16 y; range, 14 to 18 y; 4 male individuals: 7 female individuals) with an average follow-up of 4.25 years (range, 3.2 to 6.0 y) met inclusion criteria. The average body mass index (BMI) of all patients was 31.3 (range, 19.7 to 46.8) with 91% considered overweight (BMI>25) and 55% obese (BMI>30). The average preoperative lateral distal femoral angle was 75.4 degrees with an average correction of 10.4 degrees (range, 7 to 12 degrees) (P<0.001). Mean patellar height ratios were reduced; with Caton-Deschamps Index significantly reduced to 1.08 (range, 0.86 to 1.30) (P<0.005). The average postoperative Kujala score was 83.6 (range, 49 to 99) with 7 subjects (70%) reporting good to excellent function (Kujala > 80) and 8 (80%) having no further episodes of instability. The mean postoperative Tegner activity score was 5.5 (range, 3 to 7). CONCLUSIONS: A distal femoral varus producing osteotomy may change radiographic parameters associated with patellar instability and improve clinical outcomes by reducing symptomatic patellofemoral instability in this patient population. LEVEL OF EVIDENCE: Level IV. PMID- 29324529 TI - Inappropriately Timed Pediatric Orthopaedic Referrals From the Emergency Department Result in Unnecessary Appointments and Financial Burden for Patients. AB - BACKGROUND: Musculoskeletal injuries are among the most common reasons for emergency department (ED) visits in the pediatric population. Many such injuries can be managed with a single follow-up outpatient visit. However, untimely (ie, premature) referrals by emergency physicians to orthopaedic surgeons are common and may inadvertently create need for a second visit, generating unnecessary expenditures. We sought to elucidate the cost of premature musculoskeletal follow up visits to the patients, families, and the health care system. METHODS: We performed a retrospective review of pediatric patients with acute musculoskeletal injuries referred from our ED (without a formal orthopaedic consult) to our outpatient clinic. Patients were retrospectively reviewed in a consecutive fashion. The appropriateness of the recommended follow-up time interval was determined for each patient, and the direct and indirect cost of the inappropriate services were calculated utilizing a combination of traditional cost accounting techniques and time-driven activity-based costing. The characteristics of patients with appropriate and untimely follow-up referrals were compared. RESULTS: Two hundred consecutive referrals from the ED were reviewed. Overall, 96.5% of the follow-up visits recommended by the ED were premature, which led 106 (53%) patients to require a second visit to complete their clinical care. Patients who required a second visit were significantly younger (P=0.005), more likely to be male (P=0.042), more likely to have a fracture (P<0.001), and less likely to have a sprain (P<0.001) or dislocation/subluxation (P<0.001). Over 40% of second visits were accounted for by 3 diagnoses (distal radius buckle fractures, nondisplaced Salter-Harris 1 fractures of the ankle, and buckle fractures of the finger). Across the whole cohort, the total financial impact of untimely visits was $36,265.78, representing an average cost of $342.93 per patient. CONCLUSIONS: Untimely referrals for follow-up of acute pediatric musculoskeletal conditions are very common and represent a significant financial burden to patients, families, and the health care system. Over 40% of unnecessary visits resulted from just 3 diagnoses. Improved orthopaedic follow-up guidelines, particularly for these readily recognizable conditions, and feedback to referring providers may reduce poorly timed clinic visits and decrease costs in the treatment of common orthopaedic injuries in pediatric patients. LEVEL OF EVIDENCE: Level III. PMID- 29324530 TI - Early Results of Single-plug Autologous Osteochondral Grafting for Osteochondritis Dissecans of the Capitellum in Adolescents. AB - BACKGROUND: Osteochondral autologous transplantation surgery (OATS) has been advocated for unstable osetochondritis dissecans (OCD) lesions of the adolescent capitellum, though limited information is available regarding clinical and radiographic results in North American patients. We hypothesize that single-plug OATS is safe and effective in alleviating pain and restoring function in unstable OCD. METHODS: Twenty-eight patients with unstable OCD treated with single-plug OATS were evaluated. Mean age at surgery was 14.2 years; there were 14 males. Etiology of OCD was presumed to be sports participation, including baseball (n=5) and gymnastics (n=11). Indications for surgery included unstable, deep OCD lesions; 2 lesions were uncontained, and 3 patients (11%) had OATS after failed prior surgery. OATS was performed by an anconeus muscle-splitting approach; donor grafts were harvested from the lateral femoral condyle by small arthrotomy. Functional outcomes were quantified using the Timmerman instrument. Median clinical and radiographic follow-up was 6.3 months (range, 5.0 to 27.0 mo) and 5.7 months (range, 5.0 to 26.7 mo), respectively. Furthermore, all patients returned functional questionnaires at a median of 9 months postoperatively (range, 5 to 27 mo). RESULTS: Of the 26 patients who reported preoperative tenderness, 19 (73%) patients had no tenderness at most recent clinical follow-up (P=0.02). Of 18 patients with restricted elbow motion preoperatively, 13 had achieved full range of motion (P=0.10). Both elbow flexion and extension improved significantly [flexion: median change (interquartile range)=10 degrees (0 to 10 degrees), P=0.009; extension: 0 degree (-5 to 0 degrees), P <0.001). On postoperative magnetic resonance imaging, 86% (P<0.001) of elbows had restoration of articular congruity and 93% had complete graft incorporation. Objective [median change (interquartile range)=5 degrees (0 to 15 degrees)], subjective [25 degrees (15 to 40 degrees)], and overall [35 degrees (15 to 45 degrees)] Timmerman scores improved significantly (P=0.001, <0.001, and <0.001, respectively). Of the 13 patients with >6 months follow-up, 9 patients (69%) had returned to their primary sport (P=0.27) and 100% had returned to general sports participation. There were no postoperative complications. At final follow-up, all donor knees were asymptomatic with full motion and strength. CONCLUSION: Single plug OATS is safe and effective in improving pain and elbow function in adolescents with unstable OCD, with high return to sports rates and little donor site morbidity. LEVEL OF EVIDENCE: Level IV-case series. PMID- 29324531 TI - Response to a Letter to the Editor. PMID- 29324532 TI - Low Expression of Protocadherin-8 Promotes the Progression of Ovarian Cancer. AB - OBJECTIVE: Ovarian cancer (OC) is the second most lethal gynecological cancer among women throughout the world. Protocadherin-8 (PCDH8) could function as a candidate tumor suppressor. However, the link between PCDH8 and OC development is poorly understood. MATERIALS AND METHODS: A total of 68 OC patients were retrospectively enrolled. Clinical information was collected and cancer tissues were used for tissue microarray. The PCDH8 expression was determined on tissue microarray by immunohistochemical staining, and PCDH8 protein was detected in cancer tissues and adjacent tissue by western blotting. Human OC cell lines (SKOV 3 and OVCAR-3) were used to assess the effects of PCDH8 overexpression by western blot and real-time PCR analysis. 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide cell proliferation assay, wound healing migration assay, colony formation assay and invasion assays were performed to assess the influence of PCDH8 on cell function. Cells with Luc-nonspecific Lentiviral or Luc Lentiviral with PCDH8 gene were subcutaneously injected into nude mice to observe the effect of PCDH8 gene on tumor growth. Bioluminescence imaging was used to observe tumor volume. RESULTS: We found a low expression of PCDH8 in OC tissues versus the corresponding adjacent tissue. The PCDH8 expression, International Federation of Gynecology and Obstetrics stage, metastasis and recurrence were the independent prognostic factors for over-all survival by multivariate analyses. Furthermore, the patients with recurrence presented a low level of PCDH8 in OC tissues, and patients with advanced tumor stage also had a low PCDH8 expression. Importantly, the low expression of PCDH8 in OC tissues had a poor prognosis with a low overall survival rate. Overexpression of PCDH8 could inhibit OC cell growth/proliferation, migration, invasion, and colony formation in vitro. In vivo experiments also proved that overexpression of PCDH8 could inhibit OC cell growth/proliferation. CONCLUSIONS: Protocadherin-8 might be considered as a candidate tumor suppressor and play a crucial role in the progression of OC. PMID- 29324533 TI - Multicenter Clinicopathological Study of High-Grade Serous Carcinoma Presenting as Primary Peritoneal Carcinoma. AB - OBJECTIVE: We conducted a multicenter clinicopathological study to characterize patients with high-grade serous carcinoma presenting as primary peritoneal carcinoma (clinical PPC). METHODS: At 9 sites in Japan, patients with clinical PPC diagnosed according to Gynecologic Oncology Group criteria were enrolled retrospectively. The Gynecologic Oncology Group criteria allow for minor ovarian involvement by high-grade serous carcinoma. There was no systematic detailed histopathological review of the fallopian tubes to determine whether they were involved by serous carcinoma. RESULTS: There were 139 patients and 64% were aged 60 years or older. Median pretreatment serum CA-125 was 1653.5 IU/mL. Pretreatment performance status was poor in more than 50%, endometrial cytology was positive in 40.3%, and the preoperative clinical diagnosis was correct in 72.7%. Primary debulking surgery was performed in 36% of patients, whereas 64% underwent neoadjuvant chemotherapy (NAC) with interval debulking surgery (IDS). The main tumor sites were the upper abdomen (greater omentum), extrapelvic peritoneum, mesentery, and diaphragm. Lymph node metastasis was found in 46.8% of patients undergoing systematic retroperitoneal node dissection. The optimal surgery rate was 32.0% with primary debulking surgery versus 53.9% with NAC and IDS (P = 0.0139). The response rate was 82.0% with NAC and 80.6% with postoperative chemotherapy. Median progression-free survival was 19.0 months and median overall survival was 41.0 months. Multivariate analysis showed that prognostic factors for progression-free survival were NAC and residual tumor diameter after debulking surgery, whereas the only prognostic factor for overall survival was the residual tumor diameter. CONCLUSIONS: This study identified various characteristics of clinical PPC. Neoadjuvant chemotherapy with IDS is a reasonable treatment strategy, and complete debulking surgery is optimum. PMID- 29324535 TI - Evaluating the Role of F-18 Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography Scanning in the Staging of Patients With Stage IIIB Cervical Carcinoma and the Impact on Treatment Decisions. AB - OBJECTIVE: FIGO (International Federation of Gynaecology and Obstetrics) staging is currently the most widely used clinical staging system for cervical cancer; however, this staging system has many shortcomings. One of these shortcomings is that lymph nodal status, specifically the para-aortic lymph nodal status, does not get taken into account. It is known that metabolic changes occur before changes are seen on anatomical imaging, and it is therefore possible to detect metastases earlier with the help of fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT). We hypothesized that by including an FDG PET/CT study as part of the staging investigations in patients with invasive cervical cancer, pretreatment staging would improve and management would change in a significant proportion of patients. METHODS/MATERIALS: Patients diagnosed with FIGO stage IIIB cervical cancer from September 2010 to December 2015 received an FDG PET/CT study as part of their staging workup. A whole-body FDG PET/CT was performed before initiation of treatment, and the results were interpreted by experienced nuclear medicine physicians and radiologists. We determined the percentage of patients in whom PET/CT changed the stage and/or altered management of the patient. RESULTS: There were 95 patients diagnosed with stage IIIB cervix cancer during the study period who received an FDG PET/CT as part of their staging workup. Eighty-eight patients were included in the final sample. Positron emission tomography/CT affected the management of 40% of patients, with 19% requiring a change in the radiation field due to identification of para-aortic nodal involvement and 21% upstaged to stage IVB. CONCLUSIONS: Fluorodeoxyglucose PET/CT is useful in assessing distant disease and evaluating nodal involvement in patients with invasive cervical cancer. Additional findings on the PET/CT that were missed by conventional imaging and clinical examination caused treatment change in a significant proportion of patients. PMID- 29324534 TI - Reproductive Outcomes After Gestational Trophoblastic Neoplasia. A Comparison Between Single-Agent and Multiagent Chemotherapy: Retrospective Analysis From the MITO-9 Group. AB - OBJECTIVES: Gestational trophoblastic neoplasia affects women of reproductive age and is usually treated by chemotherapy. Major concerns related to chemotherapy in young women are the possible infertility, risk of early menopause, and teratogenic effects on subsequent pregnancies. The study's aim was to analyze menstrual and reproductive outcomes of women treated with single-agent versus multiagent chemotherapy for gestational trophoblastic neoplasia. METHODS: One hundred fifty-one patients were treated. Seventy-six patients older than 45 years, with a placental site or epithelioid trophoblastic tumor, undergoing hysterectomy for patient choice, or undergoing human chorionic gonadotropin follow-up at the time of the analysis were excluded. Seventy-five patients were divided into subgroups according to International Federation of Gynecology and Obstetrics score: patients scoring less than 7, receiving single-agent chemotherapy (group A, n = 42); patients scoring 7 or greater, receiving combination treatment (group B, n = 33). Patients' outcomes were compared by univariate and multivariate analyses. RESULTS: Temporary amenorrhea occurred in 33% of group A patients and 66.7% of group B (P = 0.01). Premature menopause occurred in 3 patients in group B (0% vs 9%, P = 0.02). Ten patients in group B underwent salvage hysterectomy. Pregnancy desire did not differ between the 2 groups (P = 0.555). In group A, 57.1% became pregnant; in group B, 36.4% did (P = 0.060). Instead, pregnancy rate was 52.2% among high-risk patients not undergoing hysterectomy (57.1% vs 52.2%, P = 0.449). There was no difference in miscarriage (P = 0.479) and premature birth (P = 0.615) rates. In a multivariate analysis that included age, International Federation of Gynecology and Obstetrics score, chemotherapy type, use of assisted reproductive technologies, previous pregnancies, and pregnancy desire, only age (P = 0.006) and pregnancy desire (P = 0.002) had a significant impact on the probability to have subsequent pregnancies. CONCLUSIONS: Except for the risk of premature ovarian failure, a rare adverse effect of combined treatments, both single-agent and multiagent chemotherapy can be safely administered to patients with a desire for childbearing. High-risk patients have worse reproductive outcomes because they undergo hysterectomy more frequently than low-risk patients. PMID- 29324536 TI - Added Value of Estrogen Receptor, Progesterone Receptor, and L1 Cell Adhesion Molecule Expression to Histology-Based Endometrial Carcinoma Recurrence Prediction Models: An ENITEC Collaboration Study. AB - OBJECTIVES: Endometrial carcinoma mortality is mainly caused by recurrent disease, and various immunohistochemical markers to predict recurrences have been studied. Loss of the estrogen receptor (ER) and progesterone receptor (PR) and the presence of the L1 cell adhesion molecule (L1CAM) are promising markers, but their combined value has not been studied. MATERIALS AND METHODS: Expression of ER, PR, and L1CAM was immunohistochemically determined in 293 endometrial carcinomas from 11 collaborating European Network for Individualized Treatment of Endometrial Cancer centers. Estrogen receptor, PR, or L1CAM staining was considered positive or negative when expressed by greater than or equal to 10% or less than 10% of the tumor cells, respectively. The association between these markers and clinicopathological markers, and their combined value in predicting survival were calculated, both in the entire cohort and in a selected groups of stage I endometrioid and low-risk stage I endometrioid carcinomas. RESULTS: Estrogen receptor and PR were negative in 19% and 28% of the cases, respectively, and L1CAM was positive in 18%. All 3 were associated with advanced stage, high grade, nonendometrioid histology, lymphovascular space invasion (LVSI), and reduced disease-free survival. Only advanced stage, loss of PR, and LVSI were associated with reduced disease-free survival in multivariate analysis. A prognostic model including these 3 markers was superior to 1 including only the 3 immunohistochemical markers, which was superior to the traditional model. In both the stage I endometrioid and the low-risk stage I endometrioid groups, only loss of PR was associated with reduced disease-free survival. CONCLUSIONS: Loss of ER and PR, and the presence of L1CAM are associated with high risk characteristics, and loss of PR is the strongest predictor of recurrent disease. Although a combination of these 3 markers is slightly superior to the traditional histological markers, a prognostic model including stage, PR expression, and LVSI is the most promising model in the identification of high risk carcinomas. In the stage I endometrioid carcinomas, PR immunohistochemistry appears to be of additional value in predicting recurrences. PMID- 29324537 TI - The FIGO Stage IVA Versus IVB of Ovarian Cancer: Prognostic Value and Predictive Value for Neoadjuvant Chemotherapy. AB - OBJECTIVE: The revised version of the International Federation of Gynaecology and Obstetrics (FIGO) staging system (2014) for epithelial ovarian cancer includes a number of changes. One of these is the division of stage IV into 2 subgroups. Data on the prognostic and predictive significance of this classification are scarce. The effect of neoadjuvant chemotherapy (NACT) versus primary debulking surgery (PDS) in relation to the subclassification of FIGO stage IV is also unknown. METHODS: We used data of the EORTC 55971 trial, in which 670 patients with previous stage IIIC or IV epithelial ovarian cancer were randomly assigned to PDS or NACT; 160 patients had previous stage IV. Information on previous FIGO staging and presence of pleural effusion with positive cytology were used to classify tumors as either stage IVA or IVB. We tested the association between stage IVA/IVB and survival to evaluate the prognostic value and interactions between stage, treatment, and survival to evaluate the predictive performance. RESULTS: Among the 160 participants with previous stage IV disease, 103 (64%) were categorized as stage IVA and 57 (36%) as stage IVB tumors. Median overall survival was 24 months in FIGO stage IVA and 31 months in stage IVB patients (P = 0.044). Stage IVB patients treated with NACT had 9 months longer median overall survival compared with IVB patients undergoing PDS (P = 0.025), whereas in IVA patients, no significant difference was observed (24 vs 26 months, P = 0.48). CONCLUSIONS: The reclassification of FIGO stage IV into stage IVA or IVB was not prognostic as expected. Compared with stage IVA patients, stage IVB patients have a better overall survival and may benefit more from NACT. PMID- 29324538 TI - Specific Regions, Rather than the Entire Peritoneal Carcinosis Index, are Predictive of Complete Resection and Survival in Advanced Epithelial Ovarian Cancer. AB - BACKGROUND: Advanced epithelial ovarian cancer (EOC) often involves the peritoneum. Because complete resection of tumor and carcinosis is the most important prognostic factor, the peritoneal carcinosis index (PCI) has been evaluated in EOC. We hypothesize that specific PCI regions comprising the small intestine with mesentery (regions 9-12) and the hepatoduodenal ligament (region 2) are more predictive of complete resection (R = 0) and survival than the entire PCI. MATERIALS AND METHODS: We analyzed prospectively collected nationwide data from 507 patients with International Federation of Gynecology and Obstetrics stage IIIB to IVB EOC who underwent primary surgery with complete cytoreductive intent. The PCI as a predictor of incomplete resection (R > 0) was evaluated with logistic regression and receiver operating caracteristic curves. Survival analysis was performed with Kaplan-Meier curves and Cox regression. RESULTS: Median (range) PCI was 10 (0-33) in R = 0 patients and 24 (1-39) in R > 0 patients; P < 0.0001. The PCI of regions 9 to 12 (odds ratio [OR]:1.38 (1.29 1.47; 95% confidence interval [CI]) and 2 + 9 to 12 (OR: 1.31 [1.24-1.38; 95% CI]) were more predictive of residual tumor than the entire PCI (OR: 1.10 [1.08 1.12; 95% CI]). Similarly, in receiver operating characteristic curve analyses of R greater than 0 versus R = 0, the area under the curve was higher in regions 9 to 12 (78%) and regions 2 + 9 to 12 (79%) than for the total PCI (75%).Median overall survival was 56.8 months (48.3-65.4; 95% CI) after R = 0 and 26.7 months (21.4-32.0; 95% CI) after R greater than 0 (P < 0.0001). Overall survival was 53.8 months for patients with PCI less than median (14) versus 25.7 in patients with PCI greater than median.The PCI in regions 9 to 12 (hazard ratio [HR]: 1.10 [1.07-1.13; 95% CI]) and 2 + 9 to 12 (HR: 1.08 [1.06-1.11; 95% CI]) was associated with a poorer prognosis than the entire PCI (HR: 1.03 [1.02-1.04; 95% CI]). CONCLUSIONS: Selected PCI regions corresponding to the small intestine and hepatoduodenal ligament are more predictive of complete resection and survival than the entire PCI. This confirms that in the majority of the cases, an early intraoperative examination of those selected PCI regions - and not the entire PCI - will reveal whether R = 0 is achievable. PMID- 29324539 TI - Trial of Optimal Personalised Care After Treatment-Gynaecological Cancer (TOPCAT G): A Randomized Feasibility Trial. AB - OBJECTIVE: This study aimed to evaluate the feasibility of completing a parallel group randomized controlled trial to compare usual follow-up care for women who have completed treatment of gynecological cancer against a nurse-led telephone intervention, known as Optimal Personalised Care After Treatment-Gynaecological. METHODS: The unblinded trial aimed to recruit patients who had completed treatment of cervical, endometrial, epithelial ovarian, or vulval cancer within the previous 3 months at 3 North Wales hospitals. We randomized participants to either usual hospital-based follow-up or specialist nurse-led telephone education, empowerment, and structured needs assessment follow-up. The primary outcomes assessed the feasibility of running a larger trial including patient eligibility, recruitment and retention rates, and outcome measure completion. Secondary outcomes were generic and health-related quality of life and a patient self-report health service use (Client Service Receipt Inventory) data collected at 3 time points (baseline, 3 months, and 6 months). RESULTS: Of the 58 women screened, 44 were eligible (76%) and 24 (55%) were recruited and randomized (12:12 to control and intervention, respectively). One participant was lost to follow-up. Recruited participants had a mean (SD) age of 60 (11.2) years and were approximately 5 months from their initial diagnosis (mean [SD], 159 [58] days). Seventeen (71%) of the participants had an endometrial cancer diagnosis. All outcome measure completion rates exceeded 96%. Although not a core feasibility objective, analyses of outcome measures indicated positive changes in quality of life and well-being within the Optimal Personalised Care After Treatment Gynaecological group; exploratory cost consequence analysis indicated that the nurse-led intervention had a mean total service use cost of L27 per patient (bootstrapped 95% confidence interval, -L290 to L240) lower than did the standard care group. CONCLUSION: Eligibility, recruitment, and retention rates as well as outcome measure completion showed that the trial is feasible. PMID- 29324540 TI - Metastatic Involvement of Lesser Sac in Advanced Epithelial Ovarian Cancer. AB - OBJECTIVES: In advanced epithelial ovarian cancer (AOC), lesser sac (LS) metastasis particularly to the supragastric LS (SGLS) may be overlooked, resulting in unrecognized residual disease. We aimed to identify the frequency, distribution, and predictors of LS metastasis using laparoscopic evaluation at laparotomy and perioperative surgical complications associated with evaluation and resection/ablation. METHODS: Prospective observational study in consecutive patients with AOC undergoing laparotomy for primary or interval cytoreductive surgery in 2 centers between November 2013 and December 2016. RESULTS: Of 182 AOC patients undergoing laparotomy, 150 were eligible for metastasis distribution analysis; 96/150 (64%) had LS metastasis with 90/150 (60%) involving the SGLS, including lesser omentum (47.3%), floor (42%), upper recess (24.6%), and caudate lobe (22.6%), with 62/90 (68.8%) being less than 1 cm in dimension. Of 144 undergoing cytoreductive surgery, 92 (64%) had LS metastasis, which was completely resected/ablated in 77/92 (83.6%).The strongest multivariate predictors of LS metastasis were involvement of Morison pouch (P < 0.001) and peritoneal cancer index of 17 or greater (P < 0.001). The LS metastasis was significantly associated with diaphragmatic surgery (84% vs 54%), cholecystectomy (33% vs 2%), splenectomy (50% vs 14%), retroperitoneal nodal metastasis (75% vs 49%), and surgical complexity score of 8 or higher (75% vs 35%). Morbidity related to treatment of LS metastasis was minimal. CONCLUSIONS: Lesser sac metastasis and SGLS metastasis are present in almost two thirds of cases of AOC and often small in size. Systematic exploration is necessary to detect and treat metastases to LS to prevent unrecognized incomplete cytoreduction. PMID- 29324541 TI - Intrauterine Manipulator Use During Minimally Invasive Hysterectomy and Risk of Lymphovascular Space Invasion in Endometrial Cancer. AB - OBJECTIVE: This study aimed to examine an association between intrauterine manipulator (IUM) use and frequency of lymphovascular space invasion (LVSI) in women with endometrial cancer undergoing minimally invasive hysterectomy. METHODS: A retrospective case-control study was conducted among stage I-IV endometrial cancer patients who underwent hysterectomy between 2008 and 2015. Medical records were reviewed for patient demographics, surgical details, and tumor characteristics. Women who underwent total laparoscopic hysterectomy (TLH) with IUM use were compared with women who underwent total abdominal hysterectomy (TAH). Review of archived medical record for data collection and propensity score matching were performed to adjust for background differences between TLH-IUM and TAH groups. A systematic literature review with pooled analysis was performed to examine frequency of LVSI. RESULTS: There were 687 women who underwent hysterectomy for endometrial cancer. Of those, 419 women underwent TLH with IUM use and 194 women underwent TAH. The most common type of IUM was VCare (89.5%). There was no statistically significant difference in the frequency of LVSI between the 2 groups: 15.1% for TLH-IUM vs 19.9% for TAH (P = 0.14). After propensity score matching, frequencies of LVSI were similar between the 2 groups: 21.2% for TLH-IUM vs 19.6% for TAH (P = 0.78). Systematic literature review identified 1371 cases of TLH-IUM and 1246 cases of TAH performed for endometrial cancer, and frequencies of LVSI were similar between the 2 groups (15.0% vs 13.6%, P = 0.31). CONCLUSION: Our study suggests that IUM use during TLH for endometrial cancer is not associated with increased frequency of LVSI. PMID- 29324542 TI - Extramammary Paget Disease of the Vulva: A Case Series Examining Treatment, Recurrence, and Malignant Transformation. AB - OBJECTIVES: Extramammary Paget disease (EMPD) of the vulva is a rare lesion with a high recurrence rate ranging from 12% to 61%. The rate of underlying adenocarcinoma varies, but in the largest series was reported at 4%. Given the rarity of the disease there is a paucity of data to optimize treatment. This study aims to describe the management and recurrence patterns in a tertiary care setting and to offer suggestions for management in a modern-day setting. METHODS: Patients with pathologically confirmed EMPD treated from 2000 to 2015 were retrospectively identified using an IRB approved database. Clinical data were abstracted from the electronic medical record. Pathology underwent central review. RESULTS: Forty-four patients met criteria and underwent central pathology review. Forty-two patients were treated with surgical excision. Alternative treatment modalities included Mohs surgery in 3 patients and medical therapy in 20 patients. The median number of surgical procedures was 1 and the number of procedures ranged from 1 to 16. Twenty-five patients (56.8%) had recurrent disease with a median of 2 (1-6) recurrences per patient. The median disease-free interval was 28.7 months with a median follow up of 45.8 months (1.2-178.9 months). Three patients (7%) had invasive cancer and 7 patients (16%) were diagnosed with a separate malignancy at or following diagnosis of EMPD. Despite radical resection, the majority of patients had positive margins and there was no significant difference in disease recurrence between simple and radical resection (P = 0.69). CONCLUSIONS: Patients with EMPD in this series have a high rate of recurrence. Many undergo multi-modal therapy often with multiple providers. However, patients experience relatively long disease-free intervals with a low rate of associated malignancy. We propose an algorithm for management that focuses on symptom control and minimizing morbidity of treatment intervention once invasive disease has been excluded. PMID- 29324543 TI - Short-term Outcomes and Pregnancy Rate After Laparoscopic Fertility-Sparing Surgery for Borderline Ovarian Tumors: A Single-Institute Experience. AB - OBJECTIVE: We investigated the short-term outcomes and pregnancy rate after a laparoscopic approach to fertility preservation in patients with borderline ovarian tumors (BOTs). METHODS: Clinic-pathologic variants of patients with BOTs who underwent conservative surgery at the Tianjin Central Hospital of Obstetrics and Gynecology between January 2009 and July 2015 were retrospectively analyzed. RESULTS: Among 211 patients with BOTs, 74 (35.1%) received conservative surgery (44 cases using a laparoscopic approach and 30 cases using a laparotomy approach). The mean age of the laparotomy group was significantly younger than that of the laparoscopic group (P = 0.024). The maximal longitude of the tumor in the laparotomy group was significantly longer than that in the laparoscopic group (P < 0.001). The number of incomplete surgery cases in the laparoscopic group was significantly greater than that in the laparotomy group (P < 0.001). The 2 groups showed no significant differences in gravidity and parity before surgery, abnormality of serum tumor makers, tumor lateralities, ascites, histology, duration of follow-up, pregnancy rate after surgery, or postoperative recurrence. Total recurrent rate was 6.7% (5/74). Two cases in laparotomy group and 3 cases in laparoscopic group relapsed respectively. There was no significant difference of recurrent rate between the 2 groups. The total pregnant rate was 33.8% (25/74). Nine patients (30%) in the laparotomy group and 16 patients (36.4%) in the laparoscopic group became pregnant during follow-up respectively. There were no significant differences in the postoperative durations of pregnancy, pregnancy type, age at pregnancy, tumor lateralities, ascites, or type of pathology between 2 groups. The pregnancy rate of incomplete surgery cases in laparoscopic group was significantly higher than that of laparotomy group (P = 0.011). No recurrence occurred among the pregnant cases. CONCLUSIONS: A comprehensive laparoscopic surgery was not performed in incomplete surgery patients undergoing complete exploration. Good short-term outcomes and pregnancy were observed in patients receiving conservative laparoscopic surgery for BOTs, especially in patients receiving incomplete conservative laparoscopic surgery. PMID- 29324544 TI - Gestational Trophoblastic Disease Electronic Consults: What Do Patients and Physicians Want to Know? AB - OBJECTIVES: Given the rarity of gestational trophoblastic disease (GTD), specialized regional and national centers for GTD have been established. These centers serve at least 3 purposes: to improve care for women with GTD, to enhance research though collaboration, and to educate other clinicians. This study was undertaken to understand the potential GTD knowledge gap by examining both patient and physician inquiries received at a specialized GTD center. METHODS: All electronic consults received by specialists at our center between March 2016 and March 2017 were analyzed. Information collected included source of inquiry, reason for the consult, type of GTD, and the advice provided. Descriptive statistics were used to analyze the major trends. RESULTS: We analyzed 102 electronic consults. Physicians sent 49 (48%) and patients sent 53 (52%) consults. Most e-consults were sent by physicians and patients within the United States; however, 11% of the consults were directed from international locations. Among physicians, gynecologic oncologists (65%) were the most common specialty to consult our institution followed by medical oncologists (18%) and obstetrician gynecologists (16%).Most questions from gynecologic (62%) and medical oncologists (77%) concerned treatment regimens. This was contrasted by general obstetrician gynecologists who more commonly asked about human chorionic gonadotropin monitoring (62%). Difficulty with appropriate Federation of Gynecology and Obstetrics staging and World Health Organization risk score assignment were common themes. Most of the confusion centered on the use of chest computed tomography rather than plain chest x-ray for the assessment of lung metastases. Unlike physicians, patient e-consults were most concerned with the duration of human chorionic gonadotropin monitoring (51%) and timing of future conceptions. CONCLUSIONS: Both physicians and patients in the United States and abroad frequently use electronic consults to improve their knowledge about GTD management and follow-up. Although the type of inquires varied, they highlight fundamental gaps in understanding and potential opportunities for formal education. PMID- 29324545 TI - The Role of Pathological Margin Distance and Prognostic Factors After Primary Surgery in Squamous Cell Carcinoma of the Vulva. AB - OBJECTIVE: The aim of this study was to determine the impact of clear surgical margin distance and other factors associated with the recurrence and survival of patients with squamous cell carcinoma of the vulva. METHODS/MATERIALS: A total of 107 patients operated for vulvar carcinoma from 1996 to 2016 were included in the analysis. Patients were divided into subgroups with clear pathological margin of 2 mm or less, greater than 2 to less than 8 mm, and 8 mm or greater for the analysis of the prognostic impact of the clear margin distance. Data were analyzed using the Kaplan-Meier method and Cox proportional hazards regression. RESULTS: The median age of the patients was 66 years. The median follow-up was 69 months. The labia majora and/or labia minora were the most common sites of involvement. Radical local excision and radical vulvectomy were performed in 96 and 11 patients, respectively. Thirty-nine patients received adjuvant radiotherapy. The overall recurrence rate was 46%. At 231 months, the actuarial local recurrence rate was 18.6%. Patients with clear pathological margin of 2 mm or less had significantly higher local recurrence risk. Five-year disease-free survival was 32.7%. Older age and adjuvant chemotherapy were found as independent prognostic factors for disease-free survival. CONCLUSION: Our data suggest that a more than 2 mm tumor-free margins is associated with better local control. In addition, older age is an independent prognostic factor for survival. PMID- 29324546 TI - Applying Precision Medicine to Ovarian Cancer: Proof-of-Principle for a "Molecular Second Look". AB - OBJECTIVES: The objectives of this study were to assess if targeted investigation for tumor-specific mutations by ultradeep DNA sequencing of peritoneal washes of ovarian cancer patients after primary surgical debulking and chemotherapy, and clinically diagnosed as disease free, provides a more sensitive and specific method to assess actual treatment response and tailor future therapy and to compare this "molecular second look" with conventional cytology and histopathology-based findings. METHODS/MATERIALS: We identified 10 patients with advanced-stage, high-grade serous ovarian cancer who had undergone second-look laparoscopy and for whom DNA could be isolated from biobanked paired blood, primary and recurrent tumor, and second-look peritoneal washes. A targeted 56 gene cancer-relevant panel was used for next-generation sequencing (average coverage, >6500*). Mutations were validated using either digital droplet polymerase chain reaction (ddPCR) or Sanger sequencing. RESULTS: A total of 25 tumor-specific mutations were identified (median, 2/patient; range, 1-8). TP53 mutations were identified in at least 1 sample from all patients. All 5 pathology based second-look positive patients were confirmed positive by molecular second look. Genetic analysis revealed that 3 of the 5 pathology-based negative second looks were actually positive. In the 2 patients, the second-look mutations were present in either the original primary or recurrent tumors. In the third, 2 high frequency, novel frameshift mutations in MSH6 and HNF1A were identified. CONCLUSIONS: The molecular second look detects tumor-specific evidence of residual disease and provides genetic insight into tumor evolution and future recurrences beyond standard pathology. In the precision medicine era, detecting and genetically characterizing residual disease after standard treatment will be invaluable for improving patient outcomes. PMID- 29324547 TI - Stereotactic Body Radiation Therapy, Intensity-Modulated Radiation Therapy, and Brachytherapy Boost Modalities in Invasive Cervical Cancer: A Study of the National Cancer Data Base. AB - BACKGROUND AND PURPOSE: Our objective was to determine whether stereotactic body radiotherapy (SBRT), intensity-modulated radiation therapy (IMRT), and brachytherapy boost techniques have comparable overall survival in treating cervical cancer when adjusted for known prognostic factors. MATERIALS AND METHODS: We used the National Cancer Database to study women with invasive cervical cancer who were treated with radiation between 2004 and 2013. A logistic regression model was built to identify factors associated with the receipt of SBRT and IMRT. Outcomes were compared using Kaplan-Meier and propensity score matching. RESULTS: Of all 15,905 patients, 14,394 (90.5%) received brachytherapy, 42 (0.8%) received SBRT, and 1468 (9.2%) received IMRT. After propensity score matching, there was no significant difference in overall survival (OS) for patients who received SBRT boost versus brachytherapy boost (hazard ratio = 1.477, 95% confidence interval = 0.746-2.926, P = 0.263) but a significant OS detriment in patients who received IMRT boost versus brachytherapy boost (hazard ratio = 1.455, 95% confidence interval = 1.300-1.628, P < 0.001). CONCLUSIONS: In a propensity-matched analysis, those who received SBRT boost had equal OS when compared with brachytherapy, but those who received IMRT boost had worse OS when compared with brachytherapy. PMID- 29324548 TI - One small step in frailty research, a giant leap in evidence based practice. PMID- 29324549 TI - Vocational rehabilitation for emergency services personnel: a scoping review protocol. AB - REVIEW QUESTION: The objective of this scoping review is to examine and map the range of vocational rehabilitation available for law enforcement and emergency services personnel.More specifically, the scoping review questions are. PMID- 29324550 TI - Effectiveness of the Lean process compared to other quality improvement initiatives on length of stay and wait times in healthcare organizations: a systematic review protocol. AB - REVIEW QUESTION: What is the effectiveness of the Lean process compared to other quality improvement initiatives on length of stay and wait times in healthcare organizations? PMID- 29324551 TI - The I-PASS mnemonic and the occurrence of handoff related errors in adult acute care hospitals: a systematic review protocol. AB - REVIEW QUESTION: What is the effectiveness of the I-PASS mnemonic in reducing handoff related errors during inter- or intrahospital transfers for hospitalized patients?The objective of this systematic review is to identify the impact of the I-PASS mnemonic during hospitalized patient inter- or intrahospital transfers on medication errors, transfer delays, treatment delays and mortality.More specifically, the objective is to identify the effect that the I-PASS mnemonic has on handoff related errors during inter or intrahospital patient transfers by comparing rates pre and post I-PASS implementation. PMID- 29324552 TI - Enteral nutrition for the intubated adult intensive care unit patient prior to general anesthesia: a scoping review protocol. AB - REVIEW QUESTION: The objectives of this scoping review are to examine and map fasting times for adult intubated intensive care unit (ICU) patients prior to general anesthesia and patient outcomes following the cessation of enteral nutrition, to examine and conceptually map the evidence, and identify any gaps.Specifically, the review questions are. PMID- 29324553 TI - Effectiveness of ultrasound-guided peripheral intravenous cannulation in pediatric patients aged under three years: a systematic review protocol. AB - REVIEW QUESTION: The objective of this systematic review is to identify, evaluate and synthesize evidence of effectiveness on ultrasound-guided peripheral intravenous cannulation in pediatric patients aged under three years.Specially, the review question is: In pediatric patients aged under three years, what is the effect of ultrasound-guided peripheral intravenous cannulation on the first attempt and on the overall success rate, time to cannulation and number of attempts for successful cannulation compared with the traditional blind approach? PMID- 29324554 TI - Geriatric Nursing Sensitive Indicators and quality nursing care for the older person: a scoping review protocol. AB - REVIEW QUESTION: The objective of the scoping review is to locate and describe the international literature relating to Nursing Sensitive Indicators (NSIs) and their use in evaluating geriatric care. Specifically the review question is: What definitions and key concepts of NSIs are identified in the current literature that are relevant in evaluating nursing care of the older person?Findings from the review will inform future research and health care responses to support the provision of quality nursing care to the older person. PMID- 29324555 TI - The association between paternal body mass index, pregnancy success and child health outcomes: a systematic review protocol. AB - REVIEW QUESTION: The objective of this review is to investigate the association between paternal body mass index (BMI) (particularly elevated paternal BMI) and complications of conception and pregnancy as well as neonatal and childhood health. PMID- 29324556 TI - Observer variation in the delineation of organs at risk for head and neck radiation therapy treatment planning: a systematic review protocol. AB - REVIEW QUESTION: The objective of this review is to examine inter- and intra observer agreement and reliability in the delineation of head and neck organs at risk (OAR) as part of the radiation therapy treatment planning process.More specifically, the objectives are to identify. PMID- 29324557 TI - Factors influencing participation in fecal occult blood testing to screen for colorectal cancer in Australia: a scoping review protocol. AB - REVIEW QUESTION: The objective of this scoping review is to examine and map the evidence on the range of factors influencing a person's decision to screen or not screen for colorectal cancer using a fecal occult blood test (FOBT) in Australia, with the view to identifying gaps in the research and informing appropriate questions for future systematic reviews.The question of this review is: what evidence is available around the barriers and facilitators that influence an individual's decision to screen or not screen for colorectal cancer using a fecal occult blood test in Australia? PMID- 29324558 TI - The impact of outpatient telehealth compared to standard care on emergency room visits and hospital admissions in pediatric diabetes patients: a systematic review protocol. AB - REVIEW QUESTION: What is the effectiveness of outpatient telehealth compared to standard care on emergency room and hospital admissions in patients aged 0 to 18 years with type 1 or type 2 diabetes? PMID- 29324559 TI - Nurse experiences of medication administration to people with swallowing difficulties living in aged care facilities: a systematic review of qualitative evidence. AB - OBJECTIVE: To identify nurses' experiences of administering oral medications to residents of aged care facilities (ACFs) with swallowing difficulties. INTRODUCTION: Administering medicines to older people with swallowing difficulties is a challenging task. Nurses frequently modify oral medications e.g. by crushing/splitting tablets or opening capsules, to facilitate the administration process. These practices are associated with an increased risk of medication administration errors. However, the reasons for these practices from the nurse's perspective are not well understood. INCLUSION CRITERIA: The review investigated studies on the experiences of nurses of any level with the responsibility of medication administration in ACFs in terms of problems and challenges they encountered when administering oral medicines to aged care residents with swallowing difficulties. Aged care facilities providing all levels of care were considered for inclusion. Qualitative studies including, but not limited to, phenomenology, grounded theory, ethnography and action research designs as well as mixed methods studies and text and opinion papers were considered. METHODS: A comprehensive database search of PubMed, CINAHL, Embase and Scopus was conducted between October and December 2016. MedNar and ProQuest Dissertations and Theses were used to search for gray literature. No date limitation was applied. The Joanna Briggs Institute Qualitative Assessment and Review Instrument critical appraisal tool (JBI-QARI) was used to assess the quality of the papers. The JBI-QARI data extraction instrument was used to extract qualitative findings. Data synthesis was not applicable in the final analysis due to the inclusion of only one article. RESULTS: The initial search resulted in 1681 unique titles for screening. A total of 202 abstracts were screened, after which a full-text review conducted for 19 articles. After the full-text review, only one article was eligible to be included in the final report. The included study scored highly in terms of methodological quality. The findings highlighted issues around time constraints, complexity of medication administration process to residents of ACFs with swallowing difficulties, cost and resources for alternative strategies, inefficient information flow and communication among healthcare professionals, and nurses' knowledge and training needs. CONCLUSION: The limited findings of this systematic review indicate that further research is necessary to provide evidence of nurses' experiences with regards to administering oral medications to older people with swallowing difficulties living in ACFs. A comprehensive understanding of these experiences may lead to organizational system changes to support nurses and older people with swallowing difficulties in ACFs. PMID- 29324560 TI - Contrast media extravasations in patients undergoing computerized tomography scanning: a systematic review and meta-analysis of risk factors and interventions. AB - OBJECTIVE: To identify risk factors and interventions preventing or reducing contrast medium extravasation. INTRODUCTION: Computed tomography (CT) is a radiological examination essential for the diagnosis and monitoring of many diseases. It is often performed with the intravenous (IV) injection of contrast agents. Use of these products can result in a significant complication, extravasation, which is the accidental leakage of IV material into the surrounding tissue. Patients may feel a sharp pain and skin ulceration or necrosis may develop. INCLUSION CRITERIA: This review considered studies that included patients (adults and children) undergoing a CT with IV administration of contrast media. The risk factors considered were patient demographics, comorbidities and medication history. This review also investigated any strategies related to: contrast agent, injection per se, material used for injection, apparatus used, healthcare professionals involved, and patient risk assessment performed by the radiology personnel. The comparators were other interventions or usual care. This review investigated randomized controlled trials and non-randomized controlled trials. When neither of these were available, other study designs, such as prospective and retrospective cohort studies, case-control studies and case series, were considered for inclusion. Primary outcomes considered were: extravasation frequency, volume, severity and complications. METHODS: The databases PubMed, CINAHL, Embase, the Cochrane Register of Controlled Trials, Web of Science PsycINFO, ProQuest Dissertations and Theses A&I, TRIP Database and ClinicalTrials.gov were searched to find both published and unpublished studies from 1980 to September 2016. Papers were assessed by two independent reviewers for methodological validity using the Joanna Briggs Institute System for the Unified Management, Assessment and Review of Information (JBI SUMARI). Data were extracted using the standardized data extraction tool from JBI SUMARI. In one case, quantitative data from two cohort studies were pooled in a statistical meta-analysis. However, generally, statistical pooling was not possible due to heterogeneity of the interventions, populations of interest or outcomes. Accordingly, the findings have been presented in narrative form. RESULTS: Fifteen articles were selected from a total of 2151 unique studies identified. Two were randomized controlled trials and 13 were quasi-experimental and observational studies. The quality of these studies was judged to be low to moderate. Some patient characteristics, such as female sex and inpatient status, appeared to be risk factors for extravasation. Additionally, injection rate, venous access site and catheter dwelling time could affect the volume extravasated. Preliminary studies seemed to indicate the potential of extravasation detection accessories to identify extravasation and reduce the volume extravasated. The other interventions either did not result in significant reduction in the frequency/volume of extravasation, or the results were mixed across the studies. CONCLUSIONS: The majority of the studies included in this review evaluated the outcomes of extravasation frequency and volume. Given the quality of the primary studies, this systematic review identified only potential risk factors and interventions. It further highlighted the research gap in this area and the importance of conducting trials with solid methodological designs. PMID- 29324561 TI - Nursing Minimum Data Sets for documenting nutritional care for adults in primary healthcare: a scoping review. AB - OBJECTIVE: To identify all published nutritional screening instruments that have been validated in the adult population in primary healthcare settings and to report on their psychometric validity. INTRODUCTION: Within health care, there is an urgent need for the systematic collection of nursing care data in order to make visible what nurses do and to facilitate comparison, quality assurance, management, research and funding of nursing care. To be effective, nursing records should accurately and comprehensively document all required information to support safe and high quality care of patients. However, this process of documentation has been criticized from many perspectives as being highly inadequate. A Nursing Minimum Data Set within the nutritional area in primary health care could therefore be beneficial in order to support nurses in their daily documentation and observation of patients. INCLUSION CRITERIA: The review considered studies that included adults aged over 18 years of any gender, culture, diagnosis and ethnicity, as well as nutritional experts, patients and their relatives. The concepts of interest were: the nature and content of any nutritional screening tools validated (regardless of the type of validation) in the adult population in primary healthcare; and the views and opinions of eligible participants regarding the appropriateness of nutritional assessment were the concept of interest. Studies included must have been conducted in primary healthcare settings, both within home care and nursing home facilities. METHODS: This scoping review used a two-step approach as a preliminary step to the subsequent development of a Nursing Minimum Data Set within the nutritional area in primary healthcare: i) a systematic literature search of existing nutritional screening tools validated in primary health care; and ii) a systematic literature search on nutritional experts opinions on the assessment of nutritional nursing care of adults in primary healthcare as well as the views of patients and their relatives. Multiple databases (PubMed, CINAHL, Embase, Scopus, Swemed+, MedNar, CDC, MEDION, Health Technology Assessment Database, TRIP database, NTIS, ProQuest Dissertations and Theses, Google Scholar, Current Contents) were searched from their inception to September 2016. RESULTS: The results from the studies were extracted using pre-developed extraction tools to all three questions, and have been presented narratively and by using figures to support the text. Twenty-nine nutritional screening tools that were validated within a primary care setting, and two documents on consensus statements regarding expert opinion were identified. No studies on the patients or relatives views were identified. CONCLUSIONS: The nutritional screening instruments have solely been validated in an over-55 population. Construct validity was the type of validation most frequently used in the validation process covering a total of 25 of the 29 tools. Two studies were identified in relation to the third review question. These two documents are both consensus statement documents developed by experts within the geriatric and nutritional care field. Overall, experts find it appropriate to: i) conduct a comprehensive geriatric assessment, ii) use a validated nutritional screening instrument, and iii) conduct a history and clinical diagnosis, physical examination and dietary assessment when assessing primarily the elderly's nutritional status in primary health care. PMID- 29324563 TI - Nutritional screening, assessment and implementation strategies for adults in an Australian acute tertiary hospital: a best practice implementation report. AB - OBJECTIVE: The project aimed to improve the effectiveness of nutritional screening and assessment practices through clinical audits and the implementation of evidence-based practice recommendations. INTRODUCTION: In the absence of optimal nutrition, health may decline and potentially manifest as adverse health outcomes. In a hospitalized person, poor nutrition may adversely impact on the person's outcome. If the nutritional status can be ascertained, nutritional needs can be addressed and potential risks minimized.The overall purpose of this project was to review and monitor staff compliance with nutritional screening and assessment best practice recommendations ensuring there is timely, relevant and structured nutritional therapeutic practices that support safe, compassionate and person-centered care in adults in a tertiary hospital in South Western Sydney, Australia, in the acute care setting. METHODS: A baseline retrospective chart audit was conducted and measured against 10 best practice criteria in relation to nutritional screening and assessment practices. This was followed by a facilitated multidisciplinary focus group to identify targeted strategies, implementation of targeted strategies, and a post strategy implementation chart audit.The project utilized the Joanna Briggs Institute Practical Application of Clinical Evidence System (JBI PACES) and Getting Research into Practice (GRIP) tool, including evidence from other available supporting literature, for promoting change in healthcare practice. RESULTS: The baseline audit revealed deficits between current practice and best practice across the 10 criteria. Barriers for implementation of nutritional screening and assessment best practice criteria were identified by the focus group and an education strategy was implemented. There were improved outcomes across all best practice criteria in the follow-up audit. CONCLUSIONS: The baseline audit revealed gaps between current practice and best practice. Through the implementation of a targeted education program and resource package, outcomes improved in the follow up audit. The findings indicated that engagement from multidisciplinary team members and consumers was effective in developing tailored education that improved knowledge of best practice. This was demonstrated by an increase in the percentage of compliance across the 10 criteria, although leaving room for more improvement. A policy has been developed for implementation and future audits are planned to measure whether improved practices have been sustained. PMID- 29324562 TI - Effectiveness of interventions to prevent pre-frailty and frailty progression in older adults: a systematic review. AB - OBJECTIVE: To summarize the best available evidence regarding the effectiveness of interventions for preventing frailty progression in older adults. INTRODUCTION: Frailty is an age-related state of decreased physiological reserves characterized by an increased risk of poor clinical outcomes. Evidence supporting the malleability of frailty, its prevention and treatment, has been presented. INCLUSION CRITERIA: The review considered studies on older adults aged 65 and over, explicitly identified as pre-frail or frail, who had been undergoing interventions focusing on the prevention of frailty progression. Participants selected on the basis of specific illness or with a terminal diagnosis were excluded. The comparator was usual care, alternative therapeutic interventions or no intervention. The primary outcome was frailty. Secondary outcomes included: (i) cognition, quality of life, activities of daily living, caregiver burden, functional capacity, depression and other mental health-related outcomes, self perceived health and social engagement; (ii) drugs and prescriptions, analytical parameters, adverse outcomes and comorbidities; (iii) costs, and/or costs relative to benefits and/or savings associated with implementing the interventions for frailty. Experimental study designs, cost effectiveness, cost benefit, cost minimization and cost utility studies were considered for inclusion. METHODS: Databases for published and unpublished studies, available in English, Portuguese, Spanish, Italian and Dutch, from January 2001 to November 2015, were searched. Critical appraisal was conducted using standardized instruments from the Joanna Briggs Institute. Data was extracted using the standardized tools designed for quantitative and economic studies. Data was presented in a narrative form due to the heterogeneity of included studies. RESULTS: Twenty-one studies, all randomized controlled trials, with a total of 5275 older adults and describing 33 interventions, met the criteria for inclusion. Economic analyses were conducted in two studies. Physical exercise programs were shown to be generally effective for reducing or postponing frailty but only when conducted in groups. Favorable effects on frailty indicators were also observed after the interventions, based on physical exercise with supplementation, supplementation alone, cognitive training and combined treatment. Group meetings and home visits were not found to be universally effective. Lack of efficacy was evidenced for physical exercise performed individually or delivered one-to-one, hormone supplementation and problem solving therapy. Individually tailored management programs for clinical conditions had inconsistent effects on frailty prevalence. Economic studies demonstrated that this type of intervention, as compared to usual care, provided better value for money, particularly for very frail community-dwelling participants, and had favorable effects in some of the frailty-related outcomes in inpatient and outpatient management, without increasing costs. CONCLUSIONS: This review found mixed results regarding the effectiveness of frailty interventions. However, there is clear evidence on the usefulness of such interventions in carefully chosen evidence-based circumstances, both for frailty itself and for secondary outcomes, supporting clinical investment of resources in frailty intervention. Further research is required to reinforce current evidence and examine the impact of the initial level of frailty on the benefits of different interventions. There is also a need for economic evaluation of frailty interventions. PMID- 29324564 TI - Falls assessment and interventions among older patients in two medical and one surgical hospital wards in Spain: a best practice implementation project. AB - OBJECTIVE: The current project aimed to improve fall prevention and management through clinical audits and the implementation of a quality-improvement cycle at the local level. INTRODUCTION: Falls are one of the most common adverse events reported in hospitals; evidence-based fall prevention interventions aim to reduce the number of people who fall. METHODS: A one-year clinical audit was conducted using a pre-post implementation audit method, namely the Joanna Briggs Institute's (JBI) Practical Application of Clinical Evidence System and the getting research into practice audit and feedback tool. Two medical wards and a surgical ward in a Spanish hospital participated. The subjects were evaluated at baseline and at a follow-up at six months after key strategies had been implemented. RESULTS: Compliance rates for the evidence-based criteria were low in the baseline audit. Five barriers were identified in relation to fall assessment and management and, based on getting research into practice, strategies were designed, developed and implemented to overcome these barriers. After implementation, most of the fall-risk-assessment criteria showed an overall improvement, but there was no effect on care plan recording. Awareness of the assessment and management of fall risks were increased among professionals and patients on all three study wards. CONCLUSIONS: The current project may improve compliance with regard to promoting evidence-based fall prevention and management interventions. Further audits are necessary to evaluate any improvements achieved, in particular, care plans. PMID- 29324565 TI - Assessment of Child Lead Exposure in a Philadelphia Community, 2014. AB - INTRODUCTION: Several urban neighborhoods in Philadelphia, Pennsylvania, have a history of soil, household lead paint, and potential lead-emitting industry contamination. OBJECTIVES: To (1) describe blood lead levels (BLLs) in target neighborhoods, (2) identify risk factors and sources of lead exposure, (3) describe household environmental lead levels, and (4) compare results with existing data. METHODS: A simple, random, cross-sectional sampling strategy was used to enroll children 8 years or younger living in selected Philadelphia neighborhoods with a history of lead-emitting industry during July 2014. Geometric mean of child BLLs and prevalence of BLLs of 5 MUg/dL or more were calculated. Linear and logistic regression analyses were used to ascertain risk factors for elevated BLLs. RESULTS: Among 104 children tested for blood lead, 13 (12.4%; 95% confidence interval [CI], 7.5-20.2) had BLLs of 5 MUg/dL or more. The geometric mean BLL was 2.0 MUg/dL (95% CI, 1.7-2.3 MUg/dL). Higher geometric mean BLLs were significantly associated with front door entryway dust lead content, residence built prior to 1900, and a child currently or ever receiving Medicaid. Seventy-one percent of households exceeded the screening level for soil, 25% had an elevated front door floor dust lead level, 28% had an elevated child play area floor dust lead level, and 14% had an elevated interior window dust lead level. Children in households with 2 to 3 elevated environmental lead samples were more likely to have BLLs of 5 MUg/dL or more. A spatial relationship between household proximity to historic lead-emitting facilities and child BLL was not identified. CONCLUSION: Entryway floor dust lead levels were strongly associated with blood lead levels in participants. Results underscore the importance to make housing lead safe by addressing all lead hazards in and around the home. Reduction of child lead exposure is crucial, and continued blood lead surveillance, testing, and inspection of homes of children with BLLs of 5 MUg/dL or more to identify and control lead sources are recommended. Pediatric health care providers can be especially vigilant screening Medicaid-eligible/enrolled children and children living in very old housing. PMID- 29324566 TI - Maintaining a Competent Public Health Workforce: Lessons Learned From Experiences With Public Health Accreditation Domain 8 Standards and Measures. AB - CONTEXT: Public health accreditation is an ongoing national movement to improve the quality of public health departments and the public health system in the United States; however, calls have been made for more evidence regarding best practices in the accreditation process. OBJECTIVE: The purpose of this work is to provide evidence about best practices in the accreditation process, specifically within the workforce development domain. It is the first in-depth investigation into workforce development using data collected by Public Health Accreditation Board (PHAB). DESIGN: Using deidentified accreditation application data from PHAB, this study employs a mixed-methods approach to examining practices, lessons learned, challenges, and strategies pertaining to workforce development planning for Domain 8. SETTING: United States. PARTICIPANTS: US state (n = 19) and local health departments (n = 115). MAIN OUTCOME MEASURES: Public Health Accreditation Board assessment scores for the workforce measures and the relationship between the health department's approach to meeting a PHAB measure criteria and the PHAB assessment score. RESULTS: Of the 9 different approaches identified as ways of encouraging the development of a sufficient number of qualified public health workers (version 1, measure 8.1.1), only 1 approach (local health department internship programs with schools of public health; B = 0.25, P < .03) was significantly related to higher scores. An opportunity for improvement identified for measure 8.2.1 was that plans missing a clear identification of the gap between current staff competencies and staff needs were associated with a 0.88 point decrease in the 4-point score (P < .001). CONCLUSIONS: Findings suggest that there are approaches adopted for meeting PHAB domain 8 measures that will impact the overall conformance assessment and score of a health department pursuing accreditation. There are several opportunities for improvement that health departments might consider when planning for accreditation or assessing their activities. PMID- 29324567 TI - Electronic Health Record Implementation Findings at a Large, Suburban Health and Human Services Department. AB - OBJECTIVE: Evaluate an electronic health record (EHR) implementation across a large public health department to better understand and improve implementation effectiveness of EHRs in public health departments. DESIGN: A survey based on Consolidated Framework for Implementation Research constructs was administered to staff before and after implementation of an EHR. SETTING: Large suburban county department of health and human services that provides clinical, behavioral, social, and oral health services. PARTICIPANTS: Staff across 4 program areas completed the survey prior to EHR implementation (n = 331, June 2014) and 3 months post-EHR final implementation (n = 229, December 2015). INTERVENTION: Electronic health record MAIN OUTCOME MEASURES:: Constructs were validated using confirmatory factor analysis and included information strengths and information gaps in the current environment; EHR impacts; ease of use; future use intentions; usefulness; knowledge of system; and training. Paired t tests and Wilcoxon signed rank tests of a matched sample were performed to compare the pre-/postrespondent scores. RESULTS: A majority of user perceptions and expectations showed a significant (P < .05) decline 3 months postimplementation as compared with the baseline with variation by service area and construct. Staff perceived the EHR to be less useful and more complex, provide fewer benefits, and reduce information access shortly after implementation. CONCLUSIONS: Electronic health records can benefit public health practices in many ways; however, public health departments will face significant challenges incorporating EHRs, which are typically designed for non-public health settings, into the public health workflow. Electronic health record implementation recommendations for health departments are provided. When implementing an EHR in a public health setting, health departments should provide extensive preimplementation training opportunities, including EHR training tailored to job roles, competencies, and tasks; assess usability and specific capabilities at a more granular level as part of procurement processes and consider using contracting language to facilitate usability, patient safety, and related evaluations to enhance effectiveness and efficiencies and make results public; apply standard terminologies, processes, and data structures across different health department service areas using common public health terminologies; and craft workforce communication campaigns that balance potential expected benefits with realistic expectations. PMID- 29324568 TI - Effects of pressure support ventilation on ventilator-induced lung injury in mild acute respiratory distress syndrome depend on level of positive end-expiratory pressure: A randomised animal study. AB - BACKGROUND: Harmful effects of spontaneous breathing have been shown in experimental severe acute respiratory distress syndrome (ARDS). However, in the clinical setting, spontaneous respiration has been indicated only in mild ARDS. To date, no study has compared the effects of spontaneous assisted breathing with those of fully controlled mechanical ventilation at different levels of positive end-expiratory pressure (PEEP) on lung injury in ARDS. OBJECTIVE: To compare the effects of assisted pressure support ventilation (PSV) with pressure-controlled ventilation (PCV) on lung function, histology and biological markers at two different PEEP levels in mild ARDS in rats. DESIGN: Randomised controlled experimental study. SETTING: Basic science laboratory. PARTICIPANTS: Thirty-five Wistar rats (weight +/- SD, 310 +/- 19) g received Escherichia coli lipopolysaccharide (LPS) intratracheally. After 24 h, the animals were anaesthetised and randomly allocated to either PCV (n=14) or PSV (n=14) groups. Each group was further assigned to PEEP = 2 cmH2O or PEEP = 5 cmH2O. Tidal volume was kept constant (~6 ml kg). Additional nonventilated animals (n=7) were used as a control for postmortem analysis. MAIN OUTCOME MEASURES: Ventilatory and mechanical parameters, arterial blood gases, diffuse alveolar damage score, epithelial integrity measured by E-cadherin tissue expression, and biological markers associated with inflammation (IL-6 and cytokine-induced neutrophil chemoattractant, CINC-1) and type II epithelial cell damage (surfactant protein B) were evaluated. RESULTS: In both PCV and PSV, peak transpulmonary pressure was lower, whereas E-cadherin tissue expression, which is related to epithelial integrity, was higher at PEEP = 5 cmH2O than at PEEP = 2 cmH2O. In PSV, PEEP = 5 cmH2O compared with PEEP = 2 cmH2O was associated with significantly reduced diffuse alveolar damage score [median (interquartile range), 11 (8.5 to 13.5) vs. 23 (19 to 26), P = 0.005] and expressions of IL-6 and CINC-1 (P = 0.02 for both), whereas surfactant protein-B mRNA expression increased (P = 0.03). These changes suggested less type II epithelial cell damage at a PEEP of 5 cmH2O. Peak transpulmonary pressure correlated positively with IL-6 [Spearman's rho (rho) = 0.62, P = 0.0007] and CINC-1 expressions (rho = 0.50, P = 0.01) and negatively with E-cadherin expression (rho = -0.67, P = 0.0002). CONCLUSION: During PSV, PEEP of 5 cmH2O, but not a PEEP of 2 cmH2O, reduced lung damage and inflammatory markers while maintaining epithelial cell integrity. PMID- 29324569 TI - Does the Vaginal Flora Modify When a Synthetic Mesh is Used for Genital Prolapse Repair in Postmenopausal Women? A Pilot, Randomized Controlled Study. AB - OBJECTIVE: The vaginal flora from postmenopausal women with pelvic organ prolapse (POP) is different from younger women. We hypothesized that the decision of a surgical route using a mesh would modify the vaginal flora. The purpose of this study was to analyze the vaginal flora from postmenopausal women that were submitted to abdominal sacrocervicopexy or vaginal sacrospinous fixation. METHODS: A pilot, randomized controlled study with 50 women aged 55 to 75 years (n = 25; abdominal sacrocervicopexy + subtotal hysterectomy; n = 25 vaginal sacrospinous fixation + vaginal hysterectomy) was performed. A polyvinylidene mesh was used in both arms. The vaginal content analysis was collected before and 60 days after the surgery. The type of flora, the presence of lactobacilli/leukocytes, and the Nugent criteria were analyzed. RESULTS: Most of the women were white (80%), with at least 1 comorbidity (69.9%), did not present sexual activity (60%), and presented advanced stage 4 POP. Two thirds of women presented a type 3 flora, and half of them did not present lactobacilli (48.3%). About the Nugent criteria, 51.7% presented normal flora, 46.6% found altered flora, and 1.7% had bacterial vaginosis. There were no differences about the type of flora (P = 1), number of lactobacilli (P = 0.9187), Nugent criteria (P = 0.4235), inflammation (P = 0.1018), and bacterial vaginosis (P = 0.64) before and after surgery in both groups. CONCLUSIONS: In this pilot study, the use of synthetic mesh by vaginal or abdominal route did not affect the vaginal flora in postmenopausal women operated on by POP surgery. PMID- 29324570 TI - Long-Term Outcomes After Overlapping Sphincteroplasty for Cloacal-Like Deformities. AB - OBJECTIVE: The aim of this study was to report subjective, long-term outcomes and describe patient demographics, presenting symptoms, perioperative management, and complications after overlapping sphincteroplasty repair for chronic fourth-degree lacerations (cloacal-like deformities). METHODS: In this retrospective study, hospital records were reviewed for women who underwent overlapping anal sphincteroplasty for a cloacal-like deformity of the perineum at a single institution from 1996 to 2013. Details including patient demographics, presenting symptoms, perioperative management, and complications were abstracted from the medical record. As a follow-up, subjects were contacted by telephone and were administered the validated Modified Manchester Health Questionnaire to assess anal continence status and anal incontinence-related quality of life since the time of surgery. RESULTS: Of 57 women who underwent an anal sphincteroplasty within the study period, 29 met inclusion criteria. Median parity was 3 (range, 1 7) and 24.5% reported a history of forceps or vacuum-assisted vaginal delivery. Presenting symptoms included fecal incontinence (58.6%), flatal incontinence (41%), sexual dysfunction (20.7%), and poor body self-image (3.4%). Thirteen (45%) women could be contacted by telephone and all agreed to participate. Overall, 46.2% of the 13 women who completed the Modified Manchester Health Questionnaire reported some form anal of incontinence, whereas 53.8% reported complete continence at a mean follow-up of 7.0 +/- 3.6 years. Perioperative morbidity was uncommon, and postoperative antibiotics were used in 75.9% of cases for a median duration of 8.8 +/- 3.3 days. CONCLUSIONS: Perioperative morbidity after overlapping sphincteroplasty for cloacal-like deformities after obstetrical injury is rare. Although long-term complete anal continence may be difficult to achieve in all cases, good quality of life measures and low symptom severity were noted at a mean interval of 7 years after surgery. PMID- 29324571 TI - Physical Activity Patterns and Sedentary Behavior in Older Women With Urinary Incontinence: an Accelerometer-based Study. AB - PURPOSE: Objective physical activity data for women with urinary incontinence are lacking. We investigated the relationship between physical activity, sedentary behavior, and the severity of urinary symptoms in older community-dwelling women with urinary incontinence using accelerometers. MATERIALS AND METHODS: This is a secondary analysis of a study that measured physical activity (step count, moderate-to-vigorous physical activity time) and sedentary behavior (percentage of sedentary time, number of sedentary bouts per day) using a triaxial accelerometer in older community-dwelling adult women not actively seeking treatment of their urinary symptoms. The relationship between urinary symptoms and physical activity variables was measured using linear regression. RESULTS: Our cohort of 35 community-dwelling women (median, age, 71 years) demonstrated low physical activity (median daily step count, 2168; range, 687-5205) and high sedentary behavior (median percentage of sedentary time, 74%; range, 54%-89%). Low step count was significantly associated with nocturia (P = 0.02). Shorter duration of moderate-to-vigorous physical activity time was significantly associated with nocturia (P = 0.001), nocturnal enuresis (P = 0.04), and greater use of incontinence products (P = 0.04). Greater percentage of time spent in sedentary behavior was also significantly associated with nocturia (P = 0.016). CONCLUSIONS: Low levels of physical activity are associated with greater nocturia and nocturnal enuresis. Sedentary behavior is a new construct that may be associated with lower urinary tract symptoms. Physical activity and sedentary behavior represent potential new targets for treating nocturnal urinary tract symptoms. PMID- 29324572 TI - Epstein-Barr Virus (EBV)-induced B-cell Lymphoproliferative Disorder Mimicking the Recurrence of EBV-associated Hemophagocytic Lymphohistiocytosis. AB - We describe the case of a 23-month-old male infant with Epstein-Barr virus (EBV) associated lymphoproliferative disorder, which mimicked the recurrence of EBV associated hemophagocytic lymphohistiocytosis. Chemotherapy with dexamethasone, etoposide, and cyclosporine resolved fever, hepatosplenomegaly, and pancytopenia. However, on day 81 of illness, the patient developed similar symptoms. Plasma EBV DNA levels markedly increased again, but no T-cell clonality was observed. B cells were identified to be infected with EBV. He was successfully treated with rituximab, dexamethasone and etoposide. When recurrence of EBV-associated hemophagocytic lymphohistiocytosis is suspected, performing tests to identify the infected cells will enable accurate understanding of the clinical condition, resulting in proper treatments. PMID- 29324573 TI - Allogeneic Hematopoietic Stem Cell Transplantation for Leukocyte Adhesion Deficiency. AB - The clinical outcome of allogeneic hematopoietic stem cell transplantation (HSCT) was retrospectively analyzed in 6 patients with leukocyte adhesion deficiency. Of 3 patients transplanted with myeloablative conditioning, 2 patients had complete chimerism and 1 patient had mixed chimerism. By contrast, all 3 patients transplanted with reduced-intensity conditioning (RIC) had mixed chimerism, one of whom progressed to secondary graft failure. All patients with low-level mixed chimerism and secondary graft failure were rescued by donor lymphocyte infusion or a second HSCT. RIC-HSCT is feasible for leukocyte adhesion deficiency, although further refinement/modification of conditioning is required to achieve higher donor chimerism levels. PMID- 29324575 TI - The Relationship Between Tennis Serve Velocity and Select Performance Measures. AB - The purpose of this study was to determine if there was a relationship between tennis serve speed and isometric mid-thigh pull (IMTP) kinetic variables; countermovement jump height (CMJ Height), shoulder internal and external rotation strength and anthropometric measures in elite adolescent tennis players. Twenty one elite junior tennis players from the Tennis Australia National Academy were recruited for this study (male, n = 12, female, n = 9). Correlations between the performance variables and peak tennis serve speed were calculated using a Pearson's product-moment correlation coefficient. A significant positive correlation was found between peak serve speed and body height (r = 0.80, p < 0.01), IMTP peak force (r = 0.87, p < 0.01), CMJ Height (r = 0.77, p = < 0.01) and impulse at 300ms (r = 0.71, p = < 0.01). A significant, strong correlation was found between peak serve speed and impulse at 100ms (r = 0.58, p = < 0.01), impulse at 200ms (r = 0.64, p = < 0.01), internal rotation <90 (r = 0.63, p = < 0.01) and external rotation <90 (r = 0.63, p = < 0.01). Due to the significant positive correlations between IMTP variables, CMJ Height and peak serve speed, strength and conditioning coaches with access to a force plate should consider using the isometric mid-thigh pull in order to athletically profile athletes in regards to their strength, power and injury risk. PMID- 29324574 TI - Sleep Problem Risk for Adolescents With Sickle Cell Disease: Sociodemographic, Physical, and Disease-related Correlates. AB - The aims of the current study were to investigate whether SCD incurs an additional risk for poor sleep over and above the influence of sociodemographic factors (ie, race and sex) during adolescence, and to explore the relationships between sociodemographic, physical (ie, age and pubertal status), and disease related factors (ie, SCD genotype and hydroxyurea use) on sleep problem risk during adolescence. Black adolescents (age, 12 to 17 y) with SCD (n=53) were recruited from regional pediatric SCD clinics in the southeast and a sample of healthy black adolescents (n=160) were recruited from middle and high schools. Regression analyses indicated that SCD was uniquely related to sleeping more, and worse sleep quality over and above the influence of sociodemographic factors. Having a more severe SCD genotype was related to worse sleep quality and higher pubertal status was related to sleeping longer during the week. Results indicate the need for systematic assessments of sleep problems, with more a focus on youth with more severe genotypes and higher pubertal status. Future research should focus on characterizing trajectories of sleep problems in this population, identifying key risk factors, and elucidating mechanisms linking risk factors to sleep problem risk to aid in tailoring interventions for this population. PMID- 29324576 TI - Intermittent Cooling During Judo Training in A Warm/Humid Environment Reduces Autonomic and Hormonal Impact. AB - The purpose of this study was to identify the effects of superficial cooling on physiological responses while training in a warm, humid environment during an international judo training camp. Sixteen judokas (8 women and 8 men) participated in the experiment. Four high-level women and four men were randomly assigned to wear a cooling vest (vest group, VG) during the recovery periods within a training session (i.e. 8 bouts of 5 min fighting with 5 min rest) and up to 10 min after the session, while the remaining athletes in the control group (CG) trained without the use of any cooling aids. No differences between groups were reported in well-being prior to the session or in perceived fatigue following the session. The temperature was increased after the training session (p=0.02) without significant differences between groups; however, CG demonstrated a moderate effect size (ES=0.95, 90% confidence interval [CI] from 0.09 to 1.82; probability of superiority [PS]=74.9%) in contrast to the small effect for VG (ES=0.28, 90% CI from -0.55 to 1.11; PS=57.9%). There were time * group interactions for heart rate variability (HRV; lnRMSSD) (p<0.01; VG vs. CG, PS=79.0%) and the dehydroepiandrosterone-cortisol ratio (DHEA/C ratio) (p=0.04; VG vs. CG, PS=99.9%). VG preserved the cardiac autonomic control (p>0.05; ES= 0.06, 90% CI=-0.88 to 0.76; PS=51.7%) compared to the large decrement of CG (p<0.05; ES=-1.18, 90% CI=-2.07 to -0.29; PS=74.9%). Furthermore, VG showed an increase of DHEA/C (p<0.01) from pre- to post-session based on a moderate decrease of cortisol (p>0.05; ES=-0.67, 90% CI=-1.52 to 0.17; PS=68.2%) with a concomitant small increase of DHEA (p>0.05; ES=0.46, 90%CI=-0.38 to 1.29; PS=62.7%). Conversely, the control group showed a moderate effect for increased DHEA and a small effect for increased cortisol following training. No significant interactions or main effects were shown for isometric handgrip values. Cooling vests diminished the cardiovascular strain and hormonal impact of the judo training session in high-level athletes and may be considered for recovery purposes during exercise in warm/humid environments. PMID- 29324577 TI - Physical Fitness Performance of Young Professional Soccer Players Does Not Change During Several Training Seasons in a Spanish Elite Reserve Team: Club Study, 1996 2013. AB - Los Arcos, A and Martins, J. Physical fitness performance of young professional soccer players does not change during several training seasons in a Spanish elite reserve team: club study, 1996-2013. J Strength Cond Res 32(9): 2577-2583, 2018 The purpose of this study was to assess the changes in physical fitness performance in young professional soccer players during several training seasons in a Spanish elite reserve team. Physical test values (i.e., vertical jump test, straight line sprint test, and discontinuous and progressive submaximal running test) of 97 young professional soccer players who belonged for at least 2 consecutive seasons to the reserve team of a Spanish professional team from 1996 to 2013 were analyzed. A distinction was made between the soccer players who were promoted to the Spanish first/second divisions (n = 38) and those who were not (n = 59) (until the end of the 2016/2017 season). Players were also classified according to their playing positions. Independently of the competitive level reached and the playing position, the variability of the fitness performance was limited (coefficient of variation <6%) and the players did not improve their fitness values (effect size <= small) from the first to the last season in which they were enrolled in the team (after 2-4 seasons). During the last stage of training in an elite soccer academy, young professional soccer players achieve a very similar physical fitness performance when their soccer competence is evaluated, and other soccer performance factors are those which make them stand out for selection. PMID- 29324578 TI - Training Volume, Not Frequency, Indicative of Maximal Strength Adaptations to Resistance Training. AB - Colquhoun, RJ, Gai, CM, Aguilar, D, Bove, D, Dolan, J, Vargas, A, Couvillion, K, Jenkins, NDM, and Campbell, BI. Training volume, not frequency, indicative of maximal strength adaptations to resistance training. J Strength Cond Res 32(5): 1207-1213, 2018-To compare the effects of a high versus a moderate training frequency on maximal strength and body composition. Twenty-eight young, healthy resistance-trained men were randomly assigned to either: 3* per week (3*; n = 16) or 6* per week (6*; n = 12). Dependent variables (DVs) assessed at baseline and after the 6-week training intervention included: squat 1 repetition maximum (SQ1RM), bench press 1RM (BP1RM), deadlift 1RM (DL1RM), powerlifting total (PLT), Wilk's coefficient (WC), fat-free mass (FFM), and fat mass. Data for each DV were analyzed using a 2 * 2 between-within factorial repeated-measures analysis of variance. There was a main effect for time (p < 0.001) for SQ1RM (3*: +16.8 kg; 6*: +16.7 kg), BP1RM (3*: +7.8 kg; 6*: +8.8 kg), DL1RM (3*: +19 kg; 6*: +21 kg), PLT (3*: +43.6 kg; 6*: +46.5 kg), WC (3*: +27; 6*: +27.1), and FFM (3*: +1.7 kg; 6*: +2.6 kg). There were no group * time interactions or main effects for group. The primary finding was that 6 weeks of resistance training led to significant increases in maximal strength and FFM. In addition, it seems that increased training frequency does not lead to additional strength improvements when volume and intensity are equated. High-frequency (6* per week) resistance training does not seem to offer additional strength and hypertrophy benefits over lower frequency (3* per week) when volume and intensity are equated. Coaches and practitioners can therefore expect similar increases in strength and lean body mass with both 3 and 6 weekly sessions. PMID- 29324579 TI - Traditional Versus Suspended Push-up Muscle Activation in Athletes and Sedentary Women. AB - Syed-Abdul, MM, Soni, DS, Miller, WM, Johnson, RJ, Barnes, JT, Pujol, TJ, and Wagganer, JD. Traditional versus suspended push-up muscle activation in athletes and sedentary women. J Strength Cond Res 32(7): 1816-1820, 2018-Many strength training programs incorporate push-up exercises, which primarily activate upper body muscles. Past data support the fact that shoulder girdle muscles (i.e., triceps (T) and anterior deltoids [AD]) exhibit greater electromyography (EMG) activity when a push-up is performed on an unstable (i.e., suspended [SP]) vs. stable (i.e., traditional [TD]) surface (). Sixty-nine healthy female volunteers (soccer players [SO], n = 24; gymnasts [GY], n = 21; sedentary [SE], n = 24) performed three TD and three SP push-ups. Muscle activation, expressed as absolute integral (mV), was measured using EMG analysis. Significant increases in muscle activation were exhibited by GY (TD: p < 0.01 and SP: p < 0.001) and SO (TD: p < 0.05 and SP: p < 0.05) compared to SE for the T muscle. Only SO (p < 0.05) exhibited significantly higher muscle activation during the SP versus TD. For the AD, values were significantly higher for SO (TD: p < 0.001 and SP: p < 0.001) and GY (TD: p < 0.01 and SP: p < 0.01) compared to the SE group. In addition, significantly higher values were exhibited by SO compared with GY during TD push-ups (p < 0.01). Both the SO (p < 0.05) and GY (p < 0.05) group exhibited significantly higher values during SP versus TD push-ups. Finally, values were significantly higher for the AD compared to the T muscle only in the SO group during TD (p < 0.01) and SP (p < 0.05) push-ups. Data from this study for trained women (i.e., SO) are consistent with previous studies, whereas for untrained women (i.e., SE) the findings differed during TD and SP push-ups for both muscles. Differences were also observed between female SO and GY are unexplainable and therefore need further investigation. PMID- 29324580 TI - Relationship Between Skating Economy and Performance During a Repeated-Shift Test in Elite and Subelite Ice Hockey Players. AB - Lamoureux, NR, Tomkinson, GR, Peterson, BJ, and Fitzgerald, JS. Relationship between skating economy and performance during a repeated-shift test in elite and subelite ice hockey players. J Strength Cond Res 32(4): 1109-1113, 2018-The purpose of this study was to determine the importance of skating economy to fatigue during repeated high-intensity efforts of a simulated ice hockey shift. Forty-five collegiate and Junior A male ice hockey players (aged 18-24 years) performed a continuous graded exercise test using a skate treadmill. Breath-by breath data for oxygen consumption (V[Combining Dot Above]O2) and respiratory exchange ratio were collected and used to derive energy expenditure (EE) averaged over the final 10 seconds of each stage. Economy was determined as the slope of the regression line relating V[Combining Dot Above]O2 and EE against skating speed separately. Participants also completed 8 bouts of maximal ice skating through a course designed to simulate typical shift, with timing gates determining first half, second half, and total fatigue decrement, calculated by a percent decrement score. Partial correlation was used to determine the association between economy measures and decrement during the repeated-shift test. Twenty-six participants met inclusion criteria and were included in data analysis. Skating economy measures (both relative V[Combining Dot Above]O2 and EE) were very likely moderate positive correlates of total fatigue decrement (r [95% confidence interval]: V[Combining Dot Above]O2, 0.46 [0.09, 0.72] and EE, 0.44, [0.06, 0.71]) but not with first or second gate decrement. Our results indicate that skating economy plays an important role in fatigue resistance over repeated on-ice sprints designed to simulate a typical shift. This supports the use of technical skating coaching and training techniques to enhance skating economy as a means of improving ice hockey performance. PMID- 29324581 TI - The silent struggles of survivorship in cancer. PMID- 29324582 TI - Quality measures in acute kidney injury. AB - PURPOSE OF REVIEW: Quality measure assessment and reporting is evolving in end stage renal disease care and is inchoate in ambulatory nephrology clinic care. Acute kidney injury (AKI) quality measures have not received sufficient attention, yet deserve consideration in view of the substantial proportion of effort nephrology providers devote to AKI care. RECENT FINDINGS: Accumulating literature permits consideration of timing of nephrology consultation, follow-up after AKI hospitalization, early detection, medication dosing, hospital readmissions and length of stay, cost, and mortality as potential AKI quality measures. SUMMARY: We review candidate AKI quality measures and assess the strength of evidence supporting the use of each measure as a standard for AKI care. PMID- 29324583 TI - An explanatory and predictive model of the variation in esophageal cancer incidence on the basis of changes in the exposure to risk factors. AB - Variations in the exposure to risk factors may be used to explain past cancer trends and to predict its future burden. This study aimed to develop a model to describe and predict the variation of esophageal cancer incidence in 1995-2005, taking into account changes in exposures to risk factors. We adapted an existing model to calculate the expected variation in the number of esophageal cancer cases, between 1995 and 2005, in Australia, Japan, Italy, Portugal, the UK, and the USA, because of changes in exposures to risk factors, taking into account the corresponding lag times. Analyses were based on country-specific data of cancer incidence and exposures to risk factors. We computed 95% credibility intervals through Monte Carlo simulation methods. Absolute deviations between the number of cases predicted and those observed in 2005 ranged between 1.8% in Japan and 23.6% in the UK among men and 0.0% in Japan and 18.0% in Australia among women. In Italy and Japan, deviations did not exceed 3%. The UK registered the worst model performance. The variation in esophageal cancer incidence was mainly influenced by changes in fruit and red meat intake, and BMI. For nearly half of the sex specific and histological type-specific predictions performed, credibility intervals included the observed number of cases. This study proposes a framework for the analysis of the contribution of changes in exposure to different factors to esophageal cancer incidence trends and for long-term predictions at a population level. PMID- 29324584 TI - Maternal Serum Eye Drops in the Management of Pediatric Persistent Corneal Epithelial Defects: A Case Series. AB - PURPOSE: We report our experience with the use of maternally derived serum eye drops as adjunctive treatment in the management of pediatric persistent corneal epithelial defects. METHODS: Five eyes of 4 patients were identified in a retrospective review of pediatric patients with persistent corneal epithelial defects who received maternal serum drops. Diagnoses associated with the defects comprised pontine tegmental cap dysplasia with bilateral cranial nerve V1, V2, V3, and VII palsies; pontine tegmental cap dysplasia with left cranial nerve V1, VII, and VIII palsies; traumatic left cranial nerve II, V1, V2, and VI palsies due to a basilar skull fracture; and Stevens-Johnson syndrome with ocular involvement. We evaluated the feasibility of using maternally derived serum drops; thus, we looked at the ability to prepare and tolerate the drops as well as any complications that could have been associated with treatment. Other data collected included visual acuity, corneal examination, and current and previous treatments. RESULTS: Both the duration of therapy and time of follow-up ranged from 5 to 28 months. All patients experienced improvement or resolution of their corneal epithelial defects within 3 weeks of initiating serum eye drops. Furthermore, there were no adverse effects from the use of allogeneic serum drops. CONCLUSIONS: Maternal serum eye drops are a well-tolerated and potentially beneficial addition to the management of pediatric persistent corneal epithelial defects. PMID- 29324586 TI - Ten-year experience of transjugular intrahepatic portosystemic shunt for noncirrhotic portal hypertension. AB - BACKGROUND: Transjugular intrahepatic portosystemic shunt (TIPS) is considered to be well suited for the treatment of noncirrhotic portal hypertension (NCPHT) because of a usually severe portal hypertension (PHT) and a mild liver failure, but very less data are available. PATIENTS AND METHODS: Records of patients referred for TIPS between 2004 and 2015 for NCPHT were reviewed. No patient should have clinical or biological or histological features of cirrhosis. RESULTS: Twenty-five patients with a wide variety of histological lesions (sinusoidal dilatations, granulomatosis, regenerative nodular hyperplasia, obliterative portal venopathy, or subnormal liver) and a wide variety of associated diseases (thrombophilia, sarcoidosis, common variable immunodeficiency, scleroderma, Castleman's disease, early primitive biliary cirrhosis, congenital liver fibrosis, chemotherapy, purinethol intake, and congenital varices) were included. Two complications occurred during the procedure: one periprosthetic hematoma and the other misposition of a covered stent. During the first month, two other patients had an early thrombosis, another had induced encephalopathy, and one died of early rebleeding. Two of these complications occurred in patients with cavernoma. With a mean follow-up of 39 months, 10 patients experienced at least one episode of spontaneous encephalopathy, with three of these patients requiring a stent reduction. Five patients had a recurrence of their initial symptoms, and one had an asymptomatic hemodynamic dysfunction. CONCLUSION: TIPS is effective in NCPHT but can be technically difficult, especially in the case of cavernoma. Good liver function does not prevent the occurrence of long-term encephalopathy. PMID- 29324585 TI - Effects of metabolic syndrome on arterial function in different age groups: the Advanced Approach to Arterial Stiffness study. AB - OBJECTIVE: The aim of the Advanced Approach to Arterial Stiffness study was to compare arterial stiffness measured simultaneously with two different methods in different age groups of middle-aged and older adults with or without metabolic syndrome (MetS). The specific effects of the different MetS components on arterial stiffness were also studied. METHODS: This prospective, multicentre, international study included 2224 patients aged 40 years and older, 1664 with and 560 without MetS. Patients were enrolled in 32 centres from 18 European countries affiliated to the International Society of Vascular Health & Aging. Arterial stiffness was evaluated using the cardio-ankle vascular index (CAVI) and the carotid-femoral pulse wave velocity (CF-PWV) in four prespecified age groups: 40 49, 50-59, 60-74, 75-90 years. In this report, we present the baseline data of this study. RESULTS: Both CF-PWV and CAVI increased with age, with a higher correlation coefficient for CAVI (comparison of coefficients P < 0.001). Age adjusted and sex-adjusted values of CF-PWV and CAVI were weakly intercorrelated (r = 0.06, P < 0.001). Age-adjusted and sex-adjusted values for CF-PWV but not CAVI were higher in presence of MetS (CF-PWV: 9.57 +/- 0.06 vs. 8.65 +/- 0.10, P < 0.001; CAVI: 8.34 +/- 0.03 vs. 8.29 +/- 0.04, P = 0.40; mean +/- SEM; MetS vs. no MetS). The absence of an overall effect of MetS on CAVI was related to the heterogeneous effects of the components of MetS on this parameter: CAVI was positively associated with the high glycaemia and high blood pressure components, whereas lacked significant associations with the HDL and triglycerides components while exhibiting a negative association with the overweight component. In contrast, all five MetS components showed positive associations with CF-PWV. CONCLUSION: This large European multicentre study reveals a differential impact of MetS and age on CAVI and CF-PWV and suggests that age may have a more pronounced effect on CAVI, whereas MetS increases CF-PWV but not CAVI. This important finding may be due to heterogeneous effects of MetS components on CAVI. The clinical significance of these original results will be assessed during the longitudinal phase of the study. PMID- 29324587 TI - Linkage to care of HbsAg-positive and anti-HCV-positive patients after a systematic screening approach in the German primary care setting. AB - BACKGROUND: Identification of previously unknown cases is important to lower the burden of chronic hepatitis B and C infection. However, a screening program in the primary care setting has not yet been established. Therefore, a systematic screening project was conducted in 21 008 patients (Wolffram and colleagues). Here, we describe linkage to care of identified HbsAg-positive and anti-hepatitis C virus (HCV)-positive patients. METHODS: General practitioners characterized further medical care by a standardized questionnaire. Data of 48/110 HbsAg positive and 114/199 anti-HCV-positive patients were available. An APRI index more than 2 or up to 0.5 indicated the presence of cirrhosis or the absence of fibrosis. RESULTS: APRI was calculated in 32/48 hepatitis B virus (HBV) patients (>2: n=1; <=0.5: n=29) and 34/114 HCV patients (>2: n=4; <=0.5: n=23). The general practitioners were already aware of the positive HBsAg and anti-HCV-test in 13/48 and 59/114 patients, respectively.For 29/35 newly diagnosed HBV patients and 26/55 HCV patients, further diagnostics were initiated: ultrasound 77 versus 38%, liver biopsy 20 versus 4%, and gastroscopy 20 versus 7%.Antiviral treatment was initiated in 5/35 HBV cases and in 10/55 HCV patients.A family screening was initiated in 22/35 HBV versus 13/55 HCV index patients and showed one additional HbsAg-positive and two anti-HCV-positive cases.Diagnostic procedures differed significantly between anti-HCV-positive and HbsAg-positive patients (P<0.001 for APRI, ultrasound, and family screening; P=0.03 for liver biopsy). CONCLUSION: Diagnostic procedures should be improved for hepatitis C-infected patients. The APRI index was only of limited value in the primary care setting. PMID- 29324588 TI - Both alpha-1-antitrypsin Z phenotypes and low caeruloplasmin levels are over represented in alcohol and nonalcoholic fatty liver disease cirrhotic patients undergoing liver transplant in Ireland. AB - OBJECTIVES: Alcoholic liver disease and nonalcoholic fatty liver disease (NAFLD) are steatotic liver diseases and major causes of cirrhosis. Only a minority of patients with risk factors develop cirrhosis and genetic cofactors may be important in pathogenesis. Mutations in the Wilson's and alpha-1-antitrypsin genes are not uncommon and we speculated that they may act as cofactors. METHODS: We investigated alpha-1-antitrypsin phenotyes and caeruloplasmin levels in patients undergoing elective liver transplantation. We compared patients with alcohol and NAFLD with nonsteatotic liver disease patients: viral hepatitis B or C, autoimmune hepatitis, primary biliary cholangitis and primary sclerosing cholangitis. RESULTS: Two hundred and thirty-one patients were included in the study. Pretransplant caeruloplasmin levels and alpha-1-antitrypsin phenotypes were available in 197 and 112 patients, respectively. alpha-1-Antitrypsin Z phenotypes were significantly more common in the alcohol and NAFLD group: 12/56 versus 3/56 (P<0.05). Serum caeruloplasmin (0.3+/-0.01 vs. 0.39+/-0.01 g/l, P<0.01) and serum copper levels (13.5+/-0.9 vs. 19.3+/-0.9 MUmol/l, P<0.01) were significantly lower in the alcohol and NAFLD patients compared with the viral and autoimmune patients. CONCLUSION: In this study, we found the alpha-1-antitrypsin Z phenotype was more common, and serum caeruloplasmin and copper levels were lower in patients with fatty liver diseases. We suggest that mutations in the alpha-1-antitrypsin and Wilson's genes may act as cofactors in the pathogenesis of fatty liver diseases. PMID- 29324589 TI - Percutaneous endoscopic gastrostomy with and without jejunal extension in patients with amyotrophic lateral sclerosis. AB - BACKGROUND AND AIMS: Amyotrophic lateral sclerosis (ALS) is a fatal degenerative disease of the motor nervous system, which is associated with severe loss of weight. Enteral nutrition through percutaneous endoscopic gastrostomy (PEG) or percutaneous endoscopic gastrostomy with jejunal extension (PEG-J) is generally recommended upon disease progression. There is no standard endoscopic method that should preferentially be performed. The aim of this study was to compare the number of adverse events, complication-free survival (CFS), and overall survival (OS) in patients who received PEG or PEG-J. PATIENTS AND METHODS: All patients with ALS presenting for PEG or PEG-J placement to the Endoscopic Unit of Hannover Medical School, Germany, between 2009 and 2015 were retrospectively analyzed. RESULTS: Demographics were similar for patients receiving PEG (n=43) and PEG-J (n=39). The median intervention time and the absolute dose of propofol were significantly longer and, respectively, higher for patients with PEG-J (P=0.001 and 0.013). Intervention-related complications leading to hospitalization were significantly more frequent in patients who received PEG-J (36 vs. 4, P=0.001). The median CFS was significantly shorter in patients who received PEG-J compared with PEG (5 vs. 14 months, P=0.007). There was no difference in OS. CONCLUSION: Intervention-related complications were more frequent and the median CFS was shorter in patients who received PEG-J, whereas there was no difference in OS. Given the poor prognosis of patients with ALS, our data provide first evidence that PEG might be the better tolerable option, with fewer complications. The decision on which nutritional system is implanted should be evaluated individually. PMID- 29324590 TI - REPEATABILITY OF CHOROIDAL THICKNESS MEASUREMENTS ASSESSED WITH SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY IN HEALTHY AND DIABETIC INDIVIDUALS. AB - PURPOSE: To assess the intrasession repeatability of choroidal thickness measurements obtained using swept-source optical coherence tomography in Type 2 diabetic (T2D) patients and healthy controls. METHODS: This was a single-center, prospective, observational, cross-sectional study with consecutive inclusion of 33 healthy subjects and 43 T2D patients. Subjects underwent three consecutive swept-source optical coherence tomography scans in a single session. After automatic delineation of the choroid, subfoveal choroidal thickness, and thickness at 500-MUm intervals up to 2,500 MUm nasal and temporal from the fovea were measured using the software caliper by the same operator. Intraclass correlation coefficients (ICCs), coefficients of variation, and test-retest variability were calculated. RESULTS: Mean subfoveal choroidal thickness in healthy subjects and in T2D patients was 229.97 +/- 79.9 and 192.67 +/- 74.3 MUm, respectively (P = 0.013). All intrasession intraclass correlation coefficients were higher than 0.95 and 0.99, respectively. Coefficients of variations were less than 4.4% and 1.8%, respectively. Test-retest variability ranged from 0.76 MUm to 11.12 MUm and 0.64 MUm to 6.29 MUm, respectively. No significant differences were found in the intrasession repeatability of any choroidal measurement between healthy subjects and T2D patients. CONCLUSION: Swept-source optical coherence tomography provided excellent intrasession repeatability of choroidal thickness measurements in healthy subjects and T2D patients. PMID- 29324593 TI - INCIDENCE AND LONG-TERM VISUAL ACUITY OUTCOMES OF RETINAL PIGMENT EPITHELIUM TEARS AFTER INTRAVITREAL ANTI-VASCULAR ENDOTHELIAL GROWTH FACTOR TREATMENT OF NEOVASCULAR AGE-RELATED MACULAR DEGENERATION. AB - PURPOSE: To report the incidence of retinal pigment epithelium tears in eyes treated with aflibercept for neovascular age-related macular degeneration and compare it with ranibizumab, and to describe long-term visual outcomes of retinal pigment epithelium tears after intensive anti-vascular endothelial growth factor treatment. METHODS: Retrospective analysis of clinical charts, spectral domain optical coherence tomography and fundus fluorescein angiography imaging of consecutive naive patients treated with intravitreal aflibercept or ranibizumab for neovascular age-related macular degeneration. RESULTS: Eight hundred consecutive eyes were included in the study (300 treated with ranibizumab and 500 with aflibercept) with 34.0 +/- 9.1 months of follow-up. The incidence of tears in the aflibercept group was 3.2% and 2.3% after ranibizumab (P = 0.52). Twenty nine eyes with retinal pigment epithelium tears were followed for a mean of 30.76 months. Visual acuity at baseline was 20/100 (50.7 +/- 19.3 Early Treatment Diabetic Retinopathy Study letters) and 20/200 (36.1 +/- 26.1 Early Treatment Diabetic Retinopathy Study letters) at the end of follow-up. The mean number of injection was 7.3 at 12 months and 13.9 +/- 8.1 at the end of the study. The number of injections positively correlated with the final visual outcome. CONCLUSION: There was a low rate of retinal pigment epithelium tears after aflibercept injections, similar to ranibizumab. The correlation between the number of anti-vascular endothelial growth factors received and visual outcomes supports the need for continuing anti-vascular endothelial growth factor therapy. PMID- 29324591 TI - VISUALIZATION FROM INTRAOPERATIVE SWEPT-SOURCE MICROSCOPE-INTEGRATED OPTICAL COHERENCE TOMOGRAPHY IN VITRECTOMY FOR COMPLICATIONS OF PROLIFERATIVE DIABETIC RETINOPATHY. AB - PURPOSE: To evaluate the use of live volumetric (4D) intraoperative swept-source microscope-integrated optical coherence tomography in vitrectomy for proliferative diabetic retinopathy complications. METHODS: In this prospective study, we analyzed a subgroup of patients with proliferative diabetic retinopathy complications who required vitrectomy and who were imaged by the research swept source microscope-integrated optical coherence tomography system. In near real time, images were displayed in stereo heads-up display facilitating intraoperative surgeon feedback. Postoperative review included scoring image quality, identifying different diabetic retinopathy-associated pathologies and reviewing the intraoperatively documented surgeon feedback. RESULTS: Twenty eyes were included. Indications for vitrectomy were tractional retinal detachment (16 eyes), combined tractional-rhegmatogenous retinal detachment (2 eyes), and vitreous hemorrhage (2 eyes). Useful, good-quality 2D (B-scans) and 4D images were obtained in 16/20 eyes (80%). In these eyes, multiple diabetic retinopathy complications could be imaged. Swept-source microscope-integrated optical coherence tomography provided surgical guidance, e.g., in identifying dissection planes under fibrovascular membranes, and in determining residual membranes and traction that would benefit from additional peeling. In 4/20 eyes (20%), acceptable images were captured, but they were not useful due to high tractional retinal detachment elevation which was challenging for imaging. CONCLUSION: Swept source microscope-integrated optical coherence tomography can provide important guidance during surgery for proliferative diabetic retinopathy complications through intraoperative identification of different complications and facilitation of intraoperative decision making. PMID- 29324592 TI - FREQUENT SUBCLINICAL MACULAR CHANGES IN COMBINED BRAF/MEK INHIBITION WITH HIGH DOSE HYDROXYCHLOROQUINE AS TREATMENT FOR ADVANCED METASTATIC BRAF MUTANT MELANOMA: Preliminary Results From a Phase I/II Clinical Treatment Trial. AB - PURPOSE: To assess the potential ocular toxicity of a combined BRAF inhibition (BRAFi) + MEK inhibition (MEKi) + hydroxychloroquine (HCQ) regime used to treat metastatic BRAF mutant melanoma. METHODS: Patients with stage IV metastatic melanoma and BRAF V600E mutations (n = 11, 31-68 years of age) were included. Treatment was with oral dabrafenib, 150 mg bid, trametinib, 2 mg/day, and HCQ, 400 mg to 600 mg bid. An ophthalmic examination, spectral domain optical coherence tomography, near-infrared and short-wavelength fundus autofluorescence, and static perimetry were performed at baseline, 1 month, and q/6 months after treatment. RESULTS: There were no clinically significant ocular events; there was no ocular inflammation. The only medication-related change was a separation of the photoreceptor outer segment tip from the apical retinal pigment epithelium that could be traced from the fovea to the perifoveal retina noted in 9/11 (82%) of the patients. There were no changes in retinal pigment epithelium melanization or lipofuscin content by near-infrared fundus autofluorescence and short wavelength fundus autofluorescence, respectively. There were no inner retinal or outer nuclear layer changes. Visual acuities and sensitivities were unchanged. CONCLUSION: BRAFi (trametinib) + MEKi (dabrafenib) + HCQ causes very frequent, subclinical separation of the photoreceptor outer segment from the apical retinal pigment epithelium without inner retinal changes or signs of inflammation. The changes suggest interference with the maintenance of the outer retinal barrier and/or phagocytic/pump functions of the retinal pigment epithelium by effective MEK inhibition. PMID- 29324594 TI - INTRAOPERATIVE AND POSTOPERATIVE COMPLICATIONS IN PHACOVITRECTOMY FOR EPIRETINAL MEMBRANE AND MACULAR HOLE: A Clinical Audit of 1,000 Consecutive Eyes. AB - PURPOSE: The aim of this study was to report the intraoperative and postoperative complications of phacovitrectomy for epiretinal membrane (ERM) and macular hole (MH). METHODS: This was a retrospective audit of 1,052 phacovitrectomy operations (410 for ERM and 642 for MH) by the same surgical team between 1998 and 2017. Outcome measures included rates of intraoperative anterior segment and posterior segment complications such as posterior capsule rupture and retinal breaks. A subgroup analysis of 189 procedures in which postoperative complications were rigorously recorded was also undertaken. RESULTS: The rate of posterior capsule rupture was 2.2%, with no difference between ERM and MH (1.7 vs. 2.5%; P = 0.40). Iatrogenic retinal tears were more common in MH than in ERM surgery (15.6 vs. 6.8%; P < 0.001). The chance of one or more anterior segment or posterior segment intraoperative complications occurring (excluding iatrogenic retinal breaks) was not associated with: indication for surgery, grade of surgeon, gauge of surgery, surgical machine, diabetic status, patient sex, or patient age. Subgroup analysis showed postoperative events as follows: posterior capsular opacification 10.6% (20/189), posterior synechiae 4.2% (8/189), uveitis 2.1% (4/189), angle closure glaucoma 1.6% (3/189), and rhegmatogenous retinal detachment 1.1% (2/189). CONCLUSION: Phacovitrectomy seems to be safe in phakic patients with ERM or MH, performed either by fellows or consultants. It avoids the requirement for repeat surgery and is more cost and resource efficient. PMID- 29324596 TI - Preterm Delivery and Low Birth Weight Among Neonates Conceived With Intracytoplasmic Sperm Injection Compared With Conventional In Vitro Fertilization. AB - OBJECTIVE: To examine the prevalence of prematurity and low birth weight (LBW) among singletons conceived with intracytoplasmic sperm injection (ICSI) compared with those conceived with conventional in vitro fertilization (IVF). METHODS: Using the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System, we conducted a retrospective cohort study of women undergoing a first, fresh autologous ICSI or conventional IVF cycle from 2004 to 2013. Singleton live births were included in the analysis. Primary outcomes were preterm delivery and LBW. Secondary outcomes were very preterm delivery, preterm LBW, term LBW, and very LBW. Logistic regression models and propensity score matching were used to compare perinatal outcomes between ICSI and IVF cycles. Subset analyses were performed after stratification by sperm source, male factor infertility, and female prognosis. RESULTS: Of the 90,401 cycles included in the analysis, ICSI was used in 60,719 (67.2%) and conventional IVF was used in 29,682 (32.8%). After propensity score matching and covariate adjustment, the two groups had similar odds of preterm delivery (adjusted odds ratio [OR] 1.02, 95% CI 0.89-1.18) and LBW (adjusted OR 0.92, 95% CI 0.78-1.10). Using the matched data set, subset analyses demonstrated no significant association between the method of fertilization and the examined perinatal outcomes. CONCLUSION: Rates of preterm delivery and LBW were similar between pregnancies conceived with ICSI and conventional IVF after propensity score matching and stratifying by baseline patient characteristics. Previously reported differences in these outcomes were likely secondary to patients' inherent risk factors rather than the fertilization procedure itself. PMID- 29324595 TI - Association of Pharmacologic Treatment of Urgency Urinary Incontinence With Sleep Quality and Daytime Sleepiness. AB - OBJECTIVE: To evaluate the association between pharmacologic therapy for urgency urinary incontinence (UUI) and sleep quality. METHODS: We conducted a planned secondary data analysis of sleep outcomes in a previously conducted multicenter, double-blind, 12-week randomized trial of pharmacologic therapy for urgency predominant incontinence among community-dwelling women self-diagnosed using the 3-Incontinence Questions questionnaire. Participants (N=645) were assigned randomly to 4-8 mg antimuscarinic therapy daily or placebo. At baseline and 12 weeks, participants completed a validated voiding diary to evaluate incontinence and voiding symptoms, the Pittsburgh Sleep Quality Index to evaluate sleep quality, and the Epworth Sleepiness Scale to evaluate daytime sleepiness. RESULTS: Mean (SD) age was 56 (+/-14) years, 68% were white, and 57% had poor sleep quality (Pittsburgh Sleep Quality Index score greater than 5). Mean frequency of any urinary incontinence and UUI was 4.6 and 3.9 episodes/d, respectively. After 12 weeks, women randomized to the antimuscarinic group reported greater decrease compared with the placebo group in UUI frequency (0.9 episodes/d; P<.001) and diurnal and nocturnal voiding frequency (P<.05). As compared with the placebo group, women in the antimuscarinic group also reported greater improvement in sleep quality (total Pittsburgh Sleep Quality Index score 0.48; P=.02) with greater improvement in sleep duration and sleep efficiency subscales (P<.05). The intervention did not affect daytime sleepiness. CONCLUSION: Pharmacologic treatment of UUI is associated with decreased incontinence frequency and nocturia and improvement in overall sleep quality, sleep duration, and sleep efficiency. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT00862745. PMID- 29324597 TI - Internal Podalic Version and Breech Extraction: Enhancing Realistic Sensations in a Simulation Model. AB - BACKGROUND: Experience with internal podalic version and breech extraction is diminishing, especially in the younger generation of obstetricians. Simulation training is essential to teach and maintain these skills. INSTRUMENT: We present a mannequin-based simulation method that enhances realistic sensations during training. EXPERIENCE: By positioning the fetal mannequin into a thin plastic bag filled with water, the impression of palpating, grabbing, and pulling the fetal feet through the plastic bag is similar to reaching feet through intact membranes. The unique approach of this realistic simulation model makes the experience fun and memorable, which contributes to the didactic value and success of the model. CONCLUSION: The simulation model we present mimics the situation and sensation obstetricians experience while performing internal podalic version and breech extraction. PMID- 29324598 TI - Adoption of Minimally Invasive Surgery and Decrease in Surgical Morbidity for Endometrial Cancer Treatment in the United States. AB - OBJECTIVE: To assess how the widespread adoption of minimally invasive surgery in the United States is associated with changes in 30-day morbidity and mortality in endometrial cancer treatment. METHODS: In this retrospective cohort study, the American College of Surgeons' National Surgical Quality Improvement Project database for 2008-2014 was reviewed for patients who had undergone surgery for endometrial cancer according to their primary Current Procedural Terminology (CPT) codes. Women with CPT codes for advanced cancer or with disseminated disease were excluded. A trend analysis across the time period by surgical approach (open surgery through laparotomy, vaginal surgery, and minimally invasive surgery) was performed using a Cochran-Armitage test for trend. Thirty day surgical outcomes were compared between patients who had minimally invasive surgery and open surgery. Inverse probability of treatment weighting models were used to investigate the independent effect of minimally invasive surgery on 30 day outcomes. RESULTS: Overall, 12,283 patients met the inclusion criteria. A significant implementation of minimally invasive surgery (24.2-71.4%) and a concomitant decrease in open surgery through laparotomy (71.1-26.4%) were observed from 2008 to 2014 (both P<.001). Rate of vaginal surgery did not change over time (1.5-2.2%, P=.06). After adjusting for possible confounders, open surgery (compared with minimally invasive surgery) was independently associated with increased odds of major complications (n=347 versus n=274, adjusted odds ratio [OR] 2.4, 95% CI 2.0-2.8), readmission (n=269 versus n=238, adjusted OR 2.2, 95% CI 1.8-2.6), reoperation (n=80 versus n=93, adjusted OR 1.5, 95% CI 1.2 2.1), superficial surgical site infection (n=190 versus n=55, adjusted OR 6.8, 95% CI 5.0-9.2), perioperative transfusion (n=430 versus n=149, adjusted OR 5.9, 95% CI 4.8-7.1), and death (n=41 vs, n=20, adjusted OR 3.8, 95% CI 2.2-6.6). A comprehensive decrease in 30-day morbidity for the treatment of endometrial cancer overall was observed from 2008 to 2014 (P<.001), whereas 30-day mortality remained stable (P=.24). CONCLUSION: The widespread adoption of minimally invasive surgery is associated with substantial decreases in 30-day morbidity, readmission, and reoperation for women treated for endometrial cancer in the United States. PMID- 29324599 TI - Risk Factors, Incidence, and Morbidity Associated With Obstetric Clostridium difficile Infection. AB - OBJECTIVE: To evaluate the risk factors, incidence, and morbidity associated with the diagnosis of obstetric Clostridium difficile infection. METHODS: We performed a retrospective cohort study on women admitted for delivery using the Healthcare Cost and Utilization Project Nationwide Inpatient Sample from the United States. The delivery admission records of pregnant women were reviewed between 1999 and 2013. After adjusting for demographic and clinical characteristics, we assessed risk factors for the diagnosis of C difficile infection using unconditional logistic regression. RESULTS: Of the total 13,881,592 births in our cohort, we identified 2,757 (0.02%) admissions for delivery complicated by a diagnosis of C difficile infection. During the study period, the rate of C difficile infection diagnoses among women hospitalized for delivery doubled from 15 (95% CI 11.87 16.96) to 30 (24.42-31.78) per 100,000 deliveries per year (P<.001). Risk factors associated with the diagnosis of C difficile infection included age older than 35 years, multiple gestations, smoking, Crohn's disease, ulcerative colitis, long term antibiotic use, pneumonia, pyelonephritis as well as cesarean or perineal wound infection. The diagnosis of C difficile infection in pregnancy was associated with a significant increase in maternal death (8.0/1,000 vs 0.1/1,000, adjusted odds ratio [OR] 56.8, 95% CI 35.8-90.1). Furthermore, there was an increase in sepsis (46.4/1,000 vs 0.6/1,000, adjusted OR 59.1, 95% CI 48.8-71.6), paralytic ileus (58.0/1,000 vs 1.5/1,000, adjusted OR 33.1, 95% CI 27.5-39.8), venous thromboembolism (38.4/1,000 vs 3.1/1,000, adjusted OR 8.1, 95% CI 6.5 10.2), and hospital stays greater than 2 weeks (173.0/1,000 vs 6.5,1,000, adjusted OR 24.3, 95% CI 21.6-27.4) among pregnant women with C difficile infection. CONCLUSION: The diagnosis of C difficile infections in pregnancy has increased over the past 15 years and this diagnosis is associated with significant maternal morbidity and mortality. PMID- 29324600 TI - Reassessing the Duration of the Second Stage of Labor in Relation to Maternal and Neonatal Morbidity. AB - OBJECTIVE: To assess the morbidity associated with continuing the second-stage duration of labor, weighing the probability of spontaneous vaginal birth without morbidity compared with birth with serious maternal or neonatal complications. METHODS: In a retrospective cohort, we analyzed singleton, vertex births at 36 weeks of gestation or greater without prior cesarean delivery (n=43,810 nulliparous and 59,605 multiparous women). We calculated rates of spontaneous vaginal birth and composite serious maternal or neonatal complications. Results were stratified by parity (nulliparous or multiparous) and epidural status (yes or no). Competing risks models were created for 1) spontaneous vaginal birth with no morbidity, 2) birth with maternal or neonatal morbidity, and 3) no spontaneous vaginal birth and no morbidity, and our main interest was in comparing number 1 against number 2. RESULTS: Rates of spontaneous vaginal birth without morbidity were slightly higher after the first half hour (greater than 0.5-1.0 hours) for nulliparous women, after which rates decreased with increasing second-stage duration. For multiparous women, rates of spontaneous vaginal birth without morbidity decreased with increasing second-stage duration. For illustration, for a nulliparous woman with an epidural at 3.0 hours of the second stage of labor who extended by another 1.0 hour, her likelihood of delivering by spontaneous vaginal birth was 31.4% compared with her likelihood of birth with any serious complication in the subsequent hour, which was 7.6%. The percentage of cesarean deliveries for nonreassuring fetal heart rate tracing were higher for women without compared with women with an epidural. CONCLUSION: Rates of spontaneous vaginal birth without serious morbidity steadily decreased for increasing second stage duration except for the first half hour for nulliparous women. We did not observe an inflection point at a particular hour mark for either spontaneous vaginal delivery without morbidity or births with morbidity. Our findings will assist in decision-making for extending second-stage duration. PMID- 29324601 TI - Potentially Preventable Stillbirth in a Diverse U.S. Cohort. AB - OBJECTIVE: To estimate the proportion of potentially preventable stillbirths in the United States. METHODS: We conducted a secondary analysis of 512 stillbirths with complete evaluation enrolled in the Stillbirth Collaborative Research Network from 2006 to 2008. The Stillbirth Collaborative Research Network was a multisite, geographically, racially, and ethnically diverse, population-based case-control study of stillbirth in the United States. Cases of stillbirth underwent standard evaluation that included maternal interview, medical record abstraction, biospecimen collection, postmortem examination, placental pathology, and clinically recommended evaluation. Each stillbirth was assigned probable and possible causes of death using the Initial Causes of Fetal Death algorithm system. For this analysis, we defined potentially preventable stillbirths as those occurring in nonanomalous fetuses, 24 weeks of gestation or greater, and weighing 500 g or greater that were 1) intrapartum, 2) the result of medical complications, 3) the result of placental insufficiency, 4) multiple gestation (excluding twin-twin transfusion), 5) the result of spontaneous preterm birth, or 6) the result of hypertensive disorders of pregnancy. RESULTS: Of the 512 stillbirths included in our cohort, causes of potentially preventable stillbirth included placental insufficiency (65 [12.7%]), medical complications of pregnancy (31 [6.1%]), hypertensive disorders of pregnancy (20 [3.9%]), preterm labor (16 [3.1%]), intrapartum (nine [1.8%]), and multiple gestations (four [0.8%]). Twenty seven stillbirths fit two or more categories, leaving 114 (22.3%) potentially preventable stillbirths. CONCLUSION: Based on our definition, almost one fourth of stillbirths are potentially preventable. Given the predominance of placental insufficiency among stillbirths, identification and management of placental insufficiency may have the most immediate effect on stillbirth reduction. PMID- 29324602 TI - Antecedents of Abnormally Invasive Placenta in Primiparous Women: Risk Associated With Gynecologic Procedures. AB - OBJECTIVE: To evaluate the association between prior invasive gynecologic procedures and the risk of subsequent abnormally invasive placenta (ie, placenta accreta, increta, and percreta). METHODS: We conducted a population-based data linkage study including all primiparous women who delivered in New South Wales, Australia, between 2003 and 2012. Data were obtained from linked birth and hospital admissions with a minimum lookback period of 2 years. Prior procedures invasive of the uterus were considered including gynecologic laparoscopy with instrumentation of the uterus; hysteroscopy, including operative hysteroscopy; curettage, including suction curettage and surgical termination; and endometrial ablation. Modified Poisson regression was used to determine the association between the number of prior gynecologic procedures and risk of abnormally invasive placenta. RESULTS: Eight hundred fifty-four cases of abnormally invasive placenta were identified among 380,775 deliveries included in the study (22.4/10,000). In total, 33,296 primiparous women had at least one prior procedure (8.7%). Among women with abnormally invasive placenta, 152 (17.8%) had undergone at least one procedure compared with 33,144 (8.7%) among women without abnormally invasive placenta (P<.01). After adjustment, the relative risk was 1.5 for one procedure (99% CI 1.1-1.9), 2.7 for two procedures (99% CI 1.7-4.4), and 5.1 for three or more procedures (99% CI 2.7-9.6). Abnormally invasive placenta was also positively associated with maternal age, socioeconomic advantage, mother being Australia-born, placenta previa, hypertension, multiple births, use of assisted reproductive technology, and female fetal sex. CONCLUSION: Women with a history of prior invasive gynecologic procedures were more likely to develop abnormally invasive placenta. These insights may be used to inform management of pregnancies in women with a history of gynecologic procedures. PMID- 29324604 TI - Preterm Birth and Gestational Length in Four Race-Nativity Groups, Including Somali Americans. AB - OBJECTIVE: To compare preterm birth rates and gestational length in four race nativity groups including Somali Americans. METHODS: Using a retrospective cohort study design of Ohio birth certificates, we analyzed all singleton births between 2000 and 2015 from four groups of women categorized as U.S.-born, non-Hispanic white (USBW), U.S.-born, non-Hispanic black (USBB), African-born black (ABB, primarily of West African birth country), and Somalia-born (SB). An algorithm trained on maternal names was used to confirm Somali ethnicity. Gestational length was analyzed as completed weeks or aggregated by clinically relevant periods. Risk of spontaneous and health care provider-initiated preterm birth was calculated in a competing risk model. RESULTS: Births to women in the designated groups accounted for 1,960,693 births (USBW n=1,638,219; USBB n=303,028; ABB n=10,966, and SB n=8,480). Women in the SB group had a lower preterm birth rate (5.9%) compared with women in the USBB (13.0%), ABB (8.4%), and USBW (7.9%) groups (P<.001). Women in the SB group had a higher frequency of postterm pregnancy (5.8% vs less than 1%, P<.001 for all groups). The lower rate of preterm birth in the SB group was unrelated to differences in parity or smoking or whether preterm birth was spontaneous or health care provider-initiated. The lower rate of preterm birth and tendency for prolonged gestation was attenuated in ethnic Somali women born outside Somalia. CONCLUSION: We report a positive disparity in preterm birth and a tendency for prolonged gestation for ethnic Somali women in Ohio. Etiologic studies in multiethnic cohorts aimed to uncover the sociobiological determinants of gestational length may lead to practical approaches to reduce prematurity in the general population. PMID- 29324603 TI - Pregnancy-Associated Hypertension and Offspring Cardiometabolic Health. AB - OBJECTIVE: To evaluate whether pregnancy-associated hypertension (gestational hypertension and preeclampsia) was associated with the cardiometabolic health of young offspring. METHODS: This was a prospective observational follow-up study from 2012 to 2013 of children born to women previously enrolled in a mild gestational diabetes mellitus treatment trial or nongestational diabetes mellitus observational study. At 5-10 years after birth, children were examined and fasting blood samples obtained to determine the following cardiometabolic risk factors: blood pressure (BP), high-density lipoprotein cholesterol, triglycerides, glucose, homeostatic model assessment of insulin resistance, waist circumference, and body mass index (BMI). RESULTS: This analysis included 979 children evaluated at a median 7 years of age. Twenty-three (2%) were born preterm from a hypertensive pregnancy, 73 (7%) were born at term from a hypertensive pregnancy, 58 (6%) were born preterm from a normotensive pregnancy, and 825 (84%) were born at term from a normotensive pregnancy (reference group). After adjusting for confounding factors, mean adjusted systolic BP was significantly higher in the children who were born at term to mothers who experienced pregnancy-associated hypertension compared with those born at term to normotensive mothers (systolic BP of 104 mm Hg, 95% CI 101-106 vs systolic BP of 99 mm Hg, 95% CI 99-100, P=.001). No other significant differences were observed. CONCLUSION: Pregnancy-associated hypertension in women who deliver at term was associated with higher systolic BP in the offspring, but not with their measures of diastolic BP, BMI, waist circumference, homeostatic model assessment of insulin resistance, glucose, or lipids. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov, NCT00069576. PMID- 29324605 TI - Estimating the Hospital Delivery Costs Associated With Severe Maternal Morbidity in New York City, 2008-2012. AB - OBJECTIVE: To quantify the average and total hospital delivery costs associated with severe maternal morbidity in excess of nonsevere maternal morbidity deliveries over a 5-year period in New York City adjusting for other sociodemographic and clinical factors. METHODS: We conducted a population-based cross-sectional study using linked birth certificates and hospital discharge data for New York City deliveries from 2008 to 2012. Severe maternal morbidity was defined using a published algorithm of International Classification of Diseases, 9 Revision, Clinical Modification disease and procedure codes. Hospital costs were estimated by converting hospital charges using factors specific to each year and hospital and to each diagnosis. These estimates approximate what it costs the hospital to provide services (excluding professional fees) and were used in all subsequent analyses. To estimate adjusted mean costs associated with severe maternal morbidity, we used multivariable regression models with a log link, gamma distribution, robust standard errors, and hospital fixed effects, controlling for age, race and ethnicity, neighborhood poverty, primary payer, number of deliveries, method of delivery, comorbidities, and year. We used the adjusted mean cost to determine the average and total hospital delivery costs associated with severe maternal morbidity in excess of nonsevere maternal morbidity deliveries from 2008 to 2012. RESULTS: Approximately 2.3% (n=13,502) of all New York City delivery hospitalizations were complicated by severe maternal morbidity. Compared with nonsevere maternal morbidity deliveries, these hospitalizations were clinically complicated, required more and intensive clinical services, and had a longer stay in the hospital. The average cost of delivery with severe maternal morbidity was $14,442 (95% CI $14,128-14,756), compared with $7,289 (95% CI $7,276-7,302) among deliveries without severe maternal morbidity. After adjusting for other factors, the difference between deliveries with and without severe maternal morbidity remained high ($6,126). Over 5 years, this difference resulted in approximately $83 million in total excess costs (13,502*$6,126). CONCLUSION: Severe maternal morbidity nearly doubled the cost of delivery above and beyond other drivers of cost, resulting in tens of millions of excess dollars spent in the health care system in New York City. These findings can be used to demonstrate the burden of severe maternal morbidity and evaluate the cost-effectiveness of interventions to improve maternal health. PMID- 29324606 TI - Obstetric Outcomes After Failed Hysteroscopic and Laparoscopic Sterilization Procedures. AB - OBJECTIVE: To compare obstetric outcomes after failed hysteroscopic and laparoscopic sterilization. METHODS: This retrospective cohort study examined pregnancy outcomes including live birth, preterm birth, stillbirth, spontaneous abortion, therapeutic abortion, ectopic pregnancies, and gestational trophoblastic disease using a commercial claims administrative database for the years 2007-2013. We used a Z-test to compare pregnancy outcomes per 100 person years based on type of sterilization. Cox proportional hazard models controlled for patient age, geographic region, urbanicity, comorbidities, and insurance type. RESULTS: We evaluated 997 pregnancy outcomes among 817 women from a total of 70,115 women with a history of either hysteroscopic sterilization (n=387 pregnancies/27,724 cases) or laparoscopic sterilization (n=610 pregnancies/42,391 cases). Women undergoing hysteroscopic sterilization were slightly older than, but otherwise similar to, women undergoing laparoscopic sterilization. The most common outcome was live birth, which was more likely after hysteroscopic sterilization compared with laparoscopic sterilization (adjusted hazard ratio 1.32, 95% CI 1.09-1.60). The rate of spontaneous abortion was not statistically significantly different between the two groups. Therapeutic abortion occurred more often after hysteroscopic sterilization (adjusted hazard ratio 1.49, 95% CI 1.10-2.01), whereas ectopic pregnancies occurred less often (adjusted hazard ratio 0.12, 95% CI 0.05-0.29) compared with laparoscopic sterilization. CONCLUSION: Hysteroscopic sterilization is associated with higher rates of live birth and lower rates of ectopic pregnancy compared with laparoscopic sterilization. Spontaneous abortion and preterm birth rates were similar in both groups. These data do not support an adverse effect of hysteroscopic sterilization on subsequent pregnancy outcomes. PMID- 29324607 TI - Effect of Cesarean Delivery on Long-term Risk of Small Bowel Obstruction. AB - OBJECTIVE: To evaluate the association of cesarean deliveries on the incidence of small bowel obstruction. METHODS: We formed a population-based cohort of all women with a first live birth between 1998 and 2007 using the U.K. Clinical Practice Research Datalink. Women were followed until 2015, the occurrence of a small bowel obstruction, or loss to follow-up. Cesarean delivery was identified from the Hospital Episode Statistics and small bowel obstruction events were identified using the Classification of Interventions and Procedures and International Classification of Diseases, 10th Revision codes. Cox proportional hazard models, with cesarean delivery defined as a time-dependent exposure, estimated the adjusted hazard ratios and 95% CIs of small bowel obstruction associated with cesarean delivery. RESULTS: The cohort included 81,480 women with a median follow-up of 8.0 years (range 6 months to 16.6 years), during which 575 new small bowel obstructions occurred (incidence 9.1/10,000 person-years). Risk of small bowel obstruction was higher among women with a cesarean delivery compared with women without (16.3 vs 6.4 patients/10,000 person-years, odds ratio [OR] 2.54, 95% CI 2.15-3.00). Increasing number of cesarean deliveries was associated with an increasing risk of small bowel obstruction (OR 1.61, 95% CI 1.46-1.78, per additional cesarean delivery). Repeated small bowel obstructions were more common among women with a cesarean delivery and the association remained when restricting to small bowel obstruction requiring surgical management. CONCLUSION: Although rare, small bowel obstructions are increased among women who have undergone a cesarean delivery. With increasing rates of cesarean deliveries worldwide, small bowel obstructions and related morbidities may become a more prevalent women's health concern. PMID- 29324608 TI - Quality Assurance Practices in Obstetric Care: A Survey of Hospitals in California. AB - OBJECTIVE: To assess hospital practices in obstetric quality management activities and identify institutional characteristics associated with utilization of evidence-supported practices. METHODS: Data for this study came from a statewide survey of obstetric hospitals in California regarding their organization and delivery of perinatal care. We analyzed responses from 185 hospitals that completed quality assurance sections of the survey to assess their practices in a broad spectrum of quality enhancement activities. The association between institutional characteristics and adoption of evidence-supported practices (ie, those supported by prior literature or recommended by professional organizations as beneficial for improving birth outcome or patient safety) was examined using bivariate analysis and appropriate statistical tests. RESULTS: Most hospitals regularly audited adherence to written protocols regarding critical areas of care; however, 77.7% and 16.8% reported not having written guidelines on diagnosis of labor arrest and management of abnormal fetal heart rate, respectively. Private nonprofit hospitals were more likely to have a written protocol for management of abnormal fetal heart rate (P=.002). One in 10 hospitals (9.7%) did not regularly review cases with significant morbidity or mortality, and only 69.0% regularly tracked indications for cesarean delivery. Moreover, 26.3%, 14.3%, and 8.7% of the hospitals reported never performing interprofessional simulations for eclampsia, shoulder dystocia, or postpartum hemorrhage, respectively. Teaching status was associated with more frequent simulations in these three areas (P<=.04 for all), while larger volume was associated with more frequent simulations for eclampsia (P=.04). CONCLUSION: Hospitals in California engage in a wide range of practices to assure or improve quality of obstetric care, but substantial variation in practice exists among hospitals. There is opportunity for improvement in adoption of evidence-supported practices. PMID- 29324609 TI - Outcomes of Planned Compared With Urgent Deliveries Using a Multidisciplinary Team Approach for Morbidly Adherent Placenta. AB - OBJECTIVE: To compare outcomes between planned and urgent cesarean hysterectomy for morbidly adherent placenta managed by a multidisciplinary team. METHODS: This is a retrospective case-control study of women with singleton pregnancies with antenatally suspected and pathologically confirmed morbidly adherent placenta who underwent cesarean hysterectomy between January 1, 2011, and February 30, 2017. Timing of delivery was classified as either planned (delivery at 34-35 weeks of gestation) or urgent (need for urgent delivery as a result of uterine contractions, bleeding, or both). The primary outcome variable was composite maternal morbidity. Logistic regression analysis was used to evaluate risk factors for urgent delivery. RESULTS: One hundred thirty patients underwent hysterectomy. Sixty (46.2%) required urgent delivery. Composite maternal morbidity was identified in 34 (56.7%) of the urgent and 26 (37.1%) of the planned deliveries (P=.03). Fewer units of red blood cells and fresh frozen plasma were transfused in the planned delivery group (red blood cells, median interquartile range 3 [0-8] versus 1 [0-4], P=.02; fresh frozen plasma, median interquartile range 1 [0-2] versus 0 [0-0], P=.001). Rates of low Apgar score and respiratory distress syndrome were higher in the urgent compared with the planned delivery group (5-minute Apgar score less than 7, 34 [59.6%] versus 14 [23.3%], P<.01; respiratory distress syndrome, 34 [61.8%] versus 16 [27.1%], P<.01). A history of two or more prior cesarean deliveries was an independent predictor of urgent delivery (adjusted odds ratio 11.4, 95% CI 1.8-71.1). CONCLUSION: Women with morbidly adherent placenta requiring urgent delivery have a worse outcome than women with planned delivery. Women with morbidly adherent placenta and two or more prior cesarean deliveries are at increased risk for urgent delivery. In such women, scheduling delivery before the standard 34- to 35-week timeframe may be reasonable. PMID- 29324610 TI - Risk Factors for the Development of Obstetric Anal Sphincter Injuries in Modern Obstetric Practice. AB - OBJECTIVE: To characterize the rate of obstetric anal sphincter injuries and identify key risk factors of obstetric anal sphincter injuries, including duration of the second stage of labor. METHODS: This retrospective cohort study included all singleton, term, cephalic vaginal deliveries within Kaiser Permanente Northern California between January 2013 and December 2014 (N=22,741). Incidence of obstetric anal sphincter injuries, defined as third- or fourth degree perineal lacerations, was the primary outcome. Multiple logistic regression models were conducted to identify obstetric anal sphincter injury risk factors and high-risk subpopulations. RESULTS: The overall incidence rate of obstetric anal sphincter injuries was 4.9% (3.6% of women who delivered spontaneously vs 24.0% of women who had a vacuum-assisted vaginal delivery, P<.001, CI 18.1-22.6%). In bivariate and multivariate analyses, obstetric anal sphincter injury incidence was higher among women with second stage of labor longer than 2 hours, Asian race, nulliparity, vaginal birth after cesarean delivery, episiotomy, and vacuum delivery. Women with a vacuum-assisted vaginal delivery had four times the odds of obstetric anal sphincter injury (adjusted odds ratio [OR] 4.23, 95% CI 3.59-4.98) and those whose second stage of labor lasted at least 180 minutes vs less than 60 minutes had three times the odds of incurring obstetric anal sphincter injury (adjusted OR 3.20, 95% CI 2.62-3.89). CONCLUSION: Vacuum-assisted vaginal delivery conferred the highest odds of obstetric anal sphincter injury followed by prolonged duration of the second stage of labor, particularly among certain subpopulations. Understanding these risk factors and their complex interactions can inform antepartum and intrapartum decision-making with the goal of reducing obstetric anal sphincter injury incidence. PMID- 29324611 TI - Equal Pay for Equal Work in Academic Obstetrics and Gynecology. AB - The most compelling data suggest women in academic obstetrics and gynecology earn approximately $36,000 less than male colleagues per year in regression models correcting for commonly cited explanatory variables. Although residual confounding may exist, academic departments in the United States should consider rigorous examination of their own internal metrics around salary to ensure gender neutral compensation, commonly referred to as equal pay for equal work. PMID- 29324612 TI - Third-Trimester Maternal Vaccination Against Pertussis and Pertussis Antibody Concentrations. AB - OBJECTIVE: To compare pertussis antibody concentrations in maternal venous serum (at the time of delivery) and umbilical cord arterial serum among women vaccinated with the tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccine from either 27-30 6/7 weeks of gestation or from 31-35 6/7 weeks of gestation. METHODS: We conducted a prospective cohort study of pregnant women divided into two groups based on when Tdap was administered: 27-30 6/7 weeks of gestation and 31-35 6/7 weeks of gestation. Paired maternal and umbilical cord samples were obtained at the time of delivery to determine immunoglobulin G (IgG) concentrations to pertussis toxin and pertactin. RESULTS: Eighty-eight pregnant women were enrolled. Cord serum pertussis toxin IgG concentrations were approximately twice maternal serum pertussis toxin IgG concentrations (91.6 vs 48.6 enzyme-linked immunoassay [ELISA] units/mL, P<.01) and were significantly correlated (Pearson correlation coefficient=0.85, P<.01). There was no significant difference in maternal serum pertussis toxin IgG concentrations (48.6 vs 48.6 ELISA units/mL, P=.99), cord serum pertussis toxin IgG concentrations (92.1 vs 90.7 ELISA units/mL, P=.95), and cord serum pertactin IgG concentrations (798 vs 730 international units/mL, P=.73) between the two groups. Furthermore, there was no correlation between time from vaccination to delivery and these three parameters. Cord serum pertussis toxin IgG concentrations were greater than 10 ELISA units/mL (ie, in the protective range) in 87% and 97% of those vaccinated from 27-30 6/7 weeks of gestation and from 31 35 6/7 weeks of gestation, respectively (P=.13). CONCLUSION: Maternal vaccination against pertussis between 27 and 36 weeks of gestation was associated with a high percentage of newborns with antibody concentrations conferring protection and did not vary by gestational age at vaccination. PMID- 29324614 TI - Subsequent Pregnancy Outcomes in Patients With Peripartum Cardiomyopathy. AB - OBJECTIVE: To describe cardiac and obstetric outcomes in subsequent pregnancies of patients with peripartum cardiomyopathy and to report demographic and clinical characteristics of index pregnancies. METHODS: We conducted a retrospective cohort study of all pregnant patients with prior peripartum cardiomyopathy seen at the Mayo Clinic from January 2000 through March 2017. Maternal and neonatal outcome data of index and all subsequent pregnancies were abstracted, and all echocardiography examinations were individually reviewed. RESULTS: Twenty-five patients with prior peripartum cardiomyopathy were included; all except one had recovered left ventricular (LV) function (LV ejection fraction 50% or greater) before the subsequent pregnancy. Forty-three subsequent pregnancies were identified: six (14.0%) miscarriages, four (9.3%) terminations, and 33 (76.7%) live births. The rate of peripartum cardiomyopathy relapse was 20.9%; median LV ejection fraction nadir in patients with relapse was 43% (range 35-45%). None had LV ejection fraction decline to the level of their index pregnancy. No cardiac arrests or deaths were observed, and all patients with relapse recovered LV function. Median gestational age at delivery for all live births in subsequent pregnancies was 39.0 weeks (range 36 6/7-41 3/7 weeks). CONCLUSION: Patients with a history of peripartum cardiomyopathy who recover LV function are at risk for a transient minor decrease in LV ejection fraction during future pregnancies, but obstetric and neonatal outcomes are often favorable. PMID- 29324613 TI - Racial Disparities in Adverse Pregnancy Outcomes and Psychosocial Stress. AB - OBJECTIVE: To assess the relationships between self-reported psychosocial stress and preterm birth, hypertensive disease of pregnancy, and small-for-gestational age (SGA) birth and to assess the extent to which these relationships account for racial and ethnic disparities in these adverse outcomes. METHODS: Self-reported measures of psychosocial stress (perceived stress, depression, racism, anxiety, resilience, and social support) were collected during pregnancy among a racially and ethnically diverse cohort of women enrolled in a prospective observational study of nulliparous women with singleton pregnancies, from eight clinical sites across the United States, between October 2010 and May 2014. The associations of preterm birth, hypertensive disease of pregnancy, and SGA birth with the self reported measures of psychosocial stress as well as with race and ethnicity were evaluated. RESULTS: The study included 9,470 women (60.4% non-Hispanic white, 13.8% non-Hispanic black, 16.7% Hispanic, 4.0% Asian, and 5.0% other). Non Hispanic black women were significantly more likely to experience any preterm birth, hypertensive disease of pregnancy, and SGA birth than were non-Hispanic white women (12.2% vs 8.0%, 16.7% vs 13.4%, and 17.2% vs 8.6%, respectively; P<.05 for all). After adjusting for potentially confounding factors, including the six different psychosocial factors singly and in combination, non-Hispanic black women continued to be at greater risk of any preterm birth and SGA birth compared with non-Hispanic white women. CONCLUSION: Among a large and geographically diverse cohort of nulliparous women with singleton gestations, non Hispanic black women are most likely to experience preterm birth, hypertensive disease of pregnancy, and SGA birth. These disparities were not materially altered for preterm birth or SGA birth by adjustment for demographic differences and did not appear to be explained by differences in self-reported psychosocial factors. PMID- 29324615 TI - Associations Between Childbirth and Urinary Incontinence After Midurethral Sling Surgery. AB - OBJECTIVE: To assess whether subsequent childbirths affect the outcomes of midurethral sling surgery with regard to stress urinary incontinence (SUI). METHODS: In this population-based cohort study, we used the validated Swedish nationwide health care registers (the Patient Register and the Medical Birth Register) to identify women with a delivery after midurethral sling surgery (n=207, study group). From the same registers we then randomly identified a control group who had no deliveries after their midurethral sling procedure (n=521, control group). The women in the control group were matched to the women in the study group by age and year of surgery. The Urogenital Distress Inventory and the Incontinence Impact Questionnaire were sent out to the study population. Symptomatic SUI was defined as the primary outcome. Secondary outcomes included the total Urogenital Distress Inventory score, Urogenital Distress Inventory subscale scores, and Incontinence Impact Questionnaire scores. RESULTS: A total of 728 women were eligible for the study. The response rate was 74%; 163 in the study group (64 with vaginal delivery and 95 with cesarean delivery) and 374 women in the control group were included in the analysis. The rate of SUI (primary outcome) was 36 of 163 (22%) in the study group and 63 of 374 (17%) in the control group. In a multivariate regression analysis of the primary outcome, we found no significant difference between the groups (odds ratio [OR] 1.2, 95% CI 0.7-2.0). Vaginal childbirth after midurethral sling surgery did not increase the risk of SUI compared with cesarean delivery (22% vs 22%, OR 0.6, 95% CI 0.2 1.4). There were no significant differences in Urogenital Distress Inventory and Incontinence Impact Questionnaire scores between any of the groups. CONCLUSION: Childbirth after a midurethral sling procedure is not associated with an increased risk of patient-reported SUI, and continence status is not affected by the mode of a subsequent delivery. PMID- 29324616 TI - In Search of More Sleep. PMID- 29324617 TI - Quality Assurance and Improvement Tools: How to Choose Wisely. PMID- 29324618 TI - Connect the Dots-February 2018. PMID- 29324619 TI - What Is New in Global Women's Health? (Part 2): Best Articles From the Past Year. AB - This month we focus on current research in women's global health. Drs. Stuart and Ramsey discuss five recent publications, which are concluded with a "bottom line" that is a take-home message. A complete reference for each can be found in on this page along with direct links to abstracts. PMID- 29324620 TI - Diagnosis and Treatment of Vulvar Dermatoses. AB - Vulvar symptoms of pain, dyspareunia, and pruritus are common and may significantly affect a woman's sense of well-being and sexual function. Despite this, vulvar symptoms are often underreported by women. When identified, however, vulvovaginal symptoms should be addressed by health care providers to optimize care. The evaluation of patients with vulvovaginal complaints begins with a thorough history and physical examination. Biopsy is indicated when concern exists for malignancy or the diagnosis is uncertain. Treatment, if possible, should be evidence-based, although for many vulvar disorders including vulvar dermatoses, treatment is based on limited evidence and anecdotal experience. Although many vulvar dermatoses represent chronic conditions and thus cannot be simply cured, control is possible for the majority of women. Patient education regarding vulvar hygiene and skin care is the foundation for optimal management of inflammatory vulvar dermatoses. These conditions may be triggered or worsened by aggressive hygiene. Additionally, patients should be counseled regarding the need for individually tailored long-term maintenance to achieve optimal outcomes. PMID- 29324621 TI - Immediate Delivery Compared With Expectant Management in Late Preterm Prelabor Rupture of Membranes: An Individual Participant Data Meta-analysis. AB - OBJECTIVE: To compare the effects of immediate delivery an expectant management among women whose pregnancies were complicated by preterm prelabor rupture of membranes (PROM) in the late preterm period (from 34 0/7 weeks until 36 6/7 weeks of gestation). DATA SOURCES: PubMed, Scopus, ClinicalTrials.gov, EMBASE, and the Cochrane Central Register of Controlled Trials were searched from inception until December 2016. METHODS OF STUDY SELECTION: We included all randomized controlled trials with individual participant data reporting on late preterm PROM with randomization to immediate delivery or expectant management. The primary outcome was a composite of adverse neonatal outcomes: probable or definitive neonatal sepsis, necrotizing enterocolitis, respiratory distress syndrome, stillbirth, or neonatal death. TABULATION, INTEGRATION AND RESULTS: Of eight eligible trials (total n=3,203 mothers), three (2,563 mothers, 2,572 neonates) had individual participant data available. The composite adverse neonatal outcome occurred in 9.6% of neonates in the immediate delivery group and 8.3% in the expectant management group (relative risk [RR] 1.20, 95% CI 0.94-1.55). Neonatal sepsis rates were 2.6% and 3.5%, respectively (RR 0.74, 95% CI 0.47-1.15). Neonates in the immediate delivery group were more likely to be diagnosed with respiratory distress syndrome (RR 1.47, 95% CI 1.10-1.97), and to be admitted to the neonatal intensive care unit or special care nursery (RR 1.17, 95% CI 1.11-1.23) and had longer admissions. Mothers randomized to immediate delivery were less likely to have an antepartum hemorrhage (RR 0.57, 95% CI 0.34-0.95) or chorioamnionitis (RR 0.21, 95% CI 0.13-0.35), but more likely to undergo cesarean delivery (RR 1.26, 95% CI 1.08-1.47). CONCLUSION: In women with late preterm PROM, immediate delivery and expectant management resulted in comparable rates of the composite of adverse neonatal outcomes. Effects on individual secondary maternal and neonatal outcomes were mixed. SYSTEMATIC REVIEW REGISTRATION: PROSPERO, 42016032972. PMID- 29324622 TI - Frostbite: Don't be left out in the cold. PMID- 29324623 TI - New Drugs 2018, part 1. PMID- 29324624 TI - INTRAVITREAL AFLIBERCEPT IN THE TREATMENT OF POLYPOIDAL CHOROIDAL VASCULOPATHY ASSOCIATED WITH MORNING GLORY SYNDROME. AB - PURPOSE: To describe an unusual case of polypoidal choroidal vasculopathy secondary to morning glory syndrome successfully treated with three aflibercept intravitreal injections. METHODS: Case report. RESULTS: A 68-year-old white man presented with a 2-month history of diminished vision of his left eye. Fundus examination showed a morning glory syndrome disk anomaly with some perimacular subretinal hemorrhages and lipid depositions. Fundus autofluorescence, fluorescein and green indocyanine angiography, spectral domain optical coherence tomography, and optical coherence tomography angiography were performed and confirmed the presence of a juxtapapillary polypoidal choroidal vasculopathy with intraretinal and subretinal fluid. Patient underwent 3 monthly intravitreal injections of aflibercept and at 4-month follow-up visit, multimodal imaging findings did not show any kind of neovascular lesion activity. CONCLUSION: Polypoidal choroidal vasculopathy can occur in morning glory syndrome and it can be successfully treated with anti-vascular endothelial growth factor intravitreal injections of aflibercept. PMID- 29324626 TI - Vascular Effects of Adrenomedullin and the Anti-Adrenomedullin Antibody Adrecizumab in Sepsis. AB - Sepsis remains a major scientific and medical challenge, for which, apart from significant refinements in supportive therapy, treatment has barely changed over the last few decades. During sepsis, both vascular tone and vascular integrity are compromised, and contribute to the development of shock. The free circulating peptide adrenomedullin (ADM) is involved in the regulation of the endothelial barrier function and tone of blood vessels. Several animal studies have shown that ADM administration improves outcome of sepsis. However, in higher dosages, ADM administration may cause hypotension, limiting its clinical applicability. Moreover, ADM has a very short half-life and easily adheres to surfaces, further hampering its clinical use. The non-neutralizing anti-ADM antibody Adrecizumab (HAM8101) which causes a long-lasting increase of plasma ADM has shown promising results in animal models of systemic inflammation and sepsis; it reduced inflammation, attenuated vascular leakage, and improved hemodynamics, kidney function, and survival. Combined with an excellent safety profile derived from animal and phase I human studies, Adrecizumab represents a promising candidate drug for the adjunctive treatment of sepsis. In this review, we first provide a brief overview of the currently available data on the role of adrenomedullin in sepsis and describe its effects on endothelial barrier function and vasodilation. Furthermore, we provide a novel hypothesis concerning the mechanisms of action through which Adrecizumab may exert its beneficial effects in sepsis. PMID- 29324625 TI - Comparison of the ARK Immunoassay With High-Performance Liquid Chromatography With Ultraviolet Detection for Therapeutic Drug Monitoring of Linezolid. AB - BACKGROUND: An enzymatic immunoassay is under development by ARK Diagnostics, Inc for the quantification of plasma concentrations of linezolid (LZD). In this study, the authors aimed to assess the performance of this immunoassay using a validated high-performance liquid chromatography (HPLC) ultraviolet method as reference. METHODS: Within- and between-day in vitro inaccuracy and imprecision of the ARK LZD assay were firstly tested using spiked quality controls (QC) provided by the kit manufacturer. Subsequently, the performance of the immunoassay was verified in vivo by analyzing 170 trough LZD plasma samples from patients on antibiotic therapy. RESULTS: Imprecision of the spiked QCs resulted in every instance less than 7.0% and the inaccuracy ranged from -1.5% to 6.6%. The linear correlation between the 2 methods was documented by the Pearson analysis of plasma samples from patients on LZD therapy (coefficient = 0.9619). By Bland-Altman comparison, 8.2% of the patient samples resulted out of the limits ranging from -27.0% to +33.5%, with most of them having LZD concentrations exceeding 10 mg/L. CONCLUSIONS: Acceptable analytical performance of the ARK LZD immunoassay has been demonstrated both with spiked QC and patients' samples, making it a viable alternative to HPLC for the therapeutic drug monitoring of LZD in clinical practice in laboratory hospitals that do not have HPLC equipment. PMID- 29324627 TI - Effects of the Humanized Anti-Adrenomedullin Antibody Adrecizumab (HAM8101) on Vascular Barrier Function and Survival in Rodent Models of Systemic Inflammation and Sepsis. AB - PURPOSE: Adrenomedullin (ADM) is an important regulator of endothelial barrier function during sepsis. Administration of a murine antibody targeted against the N-terminus of ADM (HAM1101) resulted in improved outcome in models of murine sepsis. We studied the effects of a humanized form of this antibody (HAM8101, also known as Adrecizumab) on vascular barrier dysfunction and survival in rodent models of systemic inflammation and sepsis. METHODS: Rats (n=48) received different dosages of HAM8101 or placebo (n = 8 per group), directly followed by administration of lipopolysaccharide (5 mg/kg). Twenty-four hours later, Evans Blue dye was administered to assess vascular leakage in kidney and liver tissue. Furthermore, mice (n = 24) were administered different dosages of HAM8101 or placebo (n = 6 per group), immediately followed by cecal ligation and puncture (CLP). Eighteen hours later, albumin, vascular endothelial growth factor (VEGF), and angiopoietin-1 were analyzed in the kidney. Finally, effects of single and repeated dose administration of HAM1101, HAM8101 and placebo on survival were assessed in CLP-induced murine sepsis (n = 60, n = 10 per group). RESULTS: Dosages of 0.1 and 2.5 mg/kg HAM8101 attenuated renal albumin leakage in endotoxemic rats. Dosages of 0.1, 2.0, and 20 mg/kg HAM8101 reduced renal concentrations of albumin and the detrimental protein VEGF in septic mice, whereas concentrations of the protective protein angiopoietin-1 were augmented. Both single and repeated administration of both HAM1101 and HAM8101 resulted in improved survival during murine sepsis. CONCLUSIONS: Pretreatment with the humanized anti-ADM antibody HAM8101 improved vascular barrier function and survival in rodent models of systemic inflammation and sepsis. PMID- 29324628 TI - Ulinastatin Protects Against LPS-Induced Acute Lung Injury By Attenuating TLR4/NF kappaB Pathway Activation and Reducing Inflammatory Mediators. AB - Acute lung injury (ALI) and its severe form, acute respiratory distress syndrome, remain the leading causes of morbidity and mortality in intensive care units. Ulinastatin (UTI), a serine protease inhibitor, possesses anti-inflammatory properties and has been suggested to modulate lipopolysaccharide (LPS)-induced sepsis; thus, it is now widely used in the treatment of pancreatitis, sepsis, and septic shock. Toll-like receptor 4 (TLR4), an essential LPS signaling receptor, plays a critical role in the activation of innate immunity. The aim of this study was to investigate whether UTI alleviates ALI by attenuating TLR4 expression and to explore the underlying molecular mechanisms involved. Male C56BL/6 mice were administered UTI intravenously 1 h before and 6 h after exposure to LPS by intratracheal instillation. Human lung epithelial (BEAS-2B) cells were incubated with LPS in the presence or absence of UTI. An enzyme-linked immunosorbent assay was used to detect levels of inflammatory cytokines. Western blot analysis was performed to detect changes in TLR4 expression and nuclear factor-kappaB (NF kappaB) activation. UTI significantly protected animals from LPS-induced ALI, decreasing the lung wet/dry weight ratio, ALI score, total cells, neutrophils, macrophages, myeloperoxidase activity, and malondialdehyde content, factors associated with lung histological damage. UTI treatment also markedly attenuated levels of TLR4 and other proinflammatory cytokines. Furthermore, UTI significantly attenuated LPS-induced increases in TLR4 protein expression and NF kappaB activation in lung tissues. Similarly, UTI markedly attenuated TLR4 expression and NF-kappaB activation in LPS-stimulated BEAS-2B cells. These findings indicate that UTI ameliorates LPS-induced ALI by attenuating the TLR4/NF kappaB pathway activation. PMID- 29324629 TI - Susceptibility of Neisseria gonorrhoeae to Gentamicin-Gonococcal Isolate Surveillance Project, 2015-2016. AB - The gentamicin minimum inhibitory concentrations (MICs) of Neisseria gonorrhoeae isolates were determined. Seventy-three percent of isolates demonstrated an MIC range of 8 to 16 MUg/mL, and 27% demonstrated an MIC of 4 MUg/mL or less. Significant associations between gentamicin MIC and resistance or reduced susceptibility to other antimicrobials were found. PMID- 29324630 TI - Perforated Meckel Diverticulum: A Rare Cause of Acute Abdomen in Children. AB - Meckel diverticulum (MD) is the most common congenital anomaly of the gastrointestinal tract and the most common cause of gastrointestinal bleeding in children. Although it usually follows the rule of 2's, exceptions to this rule are reported in the literature. Often asymptomatic, MD is commonly an incidental finding during surgical interventions. When symptomatic, the most common presentation of this condition is painless rectal bleeding. A myriad of other nonspecific symptoms are however possible, especially in adults, thus making this diagnosis difficult. Meckel diverticulum has been reported to mimic other abdominal pathologies like appendicitis, inflammatory bowel disease, and pancreatitis to name a few.We report a patient with acute abdomen in whom the more common causes of acute abdomen were ruled out and a diagnosis of MD was established on exploratory laparoscopy, only after he developed perforation. This report emphasizes the need for maintaining a high index of suspicion towards a possibility of a complicated MD in patients presenting with an acute abdomen, once other causes of acute abdomen are ruled out. PMID- 29324631 TI - Pediatric Appendicitis: Association of Chief Complaint With Missed Appendicitis. AB - OBJECTIVES: We evaluated the association between the emergency department (ED) triage chief complaint and rate of missed appendicitis in children. METHODS: We performed a retrospective chart review of patients who presented to a pediatric ED and were diagnosed with appendicitis over 5 years (July 1, 2009 to June 30, 2014). We reviewed the medical record for any additional ED visits in the 7 days preceding the diagnosis of appendicitis. Triage chief complaints were classified as "suggestive of appendicitis" (abdominal pain, right lower quadrant pain, or rule out appendicitis) or "nonspecific" (fever, vomiting, dehydration, etc). We evaluated the association between triage chief complaint and missed diagnosis of appendicitis. RESULTS: We reviewed 1680 patients with appendicitis. In 67 (4%) cases, patients had at least 1 additional ED visit during the week preceding the diagnosis of appendicitis. When comparing those diagnosed with appendicitis at their initial ED visit to those diagnosed after multiple visits, we found no difference in age (9.9 vs 10.1 years, P = 0.665), sex (55.7% vs 49.3% male, P = 0.291), white blood cell count (14.4 vs 12.3 * 103/L, P = 0.115), or presence of fever (19.9% vs 19.4%, P = 0.920). Of patients with a triage chief complaint that was suggestive of appendicitis, 3.8% were missed on their initial ED visit versus 8.8% of those with a nonspecific triage chief complaint (odds ratio, 2.46; 95% confidence interval, 1.1-5.6). CONCLUSIONS: A triage chief complaint less suggestive of appendicitis was associated with a higher rate of missed appendicitis in a pediatric ED. Our findings further confirm the potential impact of anchoring bias by a triage chief complaint when attempting to diagnose appendicitis. PMID- 29324632 TI - Chair Lift Falls and Injuries in Children. AB - OBJECTIVE: The objective of this study was to compare demographic injury and treatment characteristics of hospitalized pediatric cases of falls from chair lifts to cases of other ski and snowboarding injuries and identify potential interventions for preventing falls from chair lifts. METHODS: Retrospective query of the trauma registry of Utah's only pediatric trauma center for children younger than 18 years requiring hospitalization for a ski or snowboarding injury from November 2004 to February 2014. RESULTS: There were 443 cases of hospitalized ski and snowboarding injuries during the study period. Twenty-nine cases (7%) fell from height while riding a chair lift. Children falling from chair lifts were more likely to be younger (6.9 years vs 12.1, P < 0.0001), female (41% vs 20%, P < 0.01), and elicit trauma team activation (72% vs 34%, P = <0.0001) but were less frequently treated in the operating room (14 vs 24%, P = 0.02) than children with other ski and snowboarding injuries. There were no differences in mortality, injury severity score, length of hospital stay, or airway intubation outside the operating room. When stated (11/29 cases), mean estimated height of fall from lift was 26 feet. The most common body region in chair lift falls with a significant injury (abbreviated injury scale, >=3) was lower extremity (4/29, all femur fractures). Patient age discriminated chair lift falls well (area under the receiver operating characteristic curve, 0.87) with age of 7 years and below predicting chair lift fall with a sensitivity of 76% and a specificity of 91%. CONCLUSIONS: Injuries requiring hospitalization after falls from chair lifts occur at regulated facilities and are more common in younger female children when compared with other ski and snowboarding injuries. Interventions for reducing falls from chair lifts may be most effective applied to children 7 years and younger. PMID- 29324633 TI - Pediatric Electric Bicycle Injuries: The Experience of a Large Urban Tertiary Care Pediatric Hospital. AB - BACKGROUND: Electric bicycles (E-bikes) are one of a wide range of light electric vehicles that provide convenient local transportation and attractive recreational opportunities. The aim of this study was to report E-bike-related injuries in children presenting to a trauma center. METHODS: Retrospective observational study, from December 2014 to November 2015, which included all pediatrics patients admitted to the emergency department with an injury related to E-bike use, was performed. RESULTS: A total of 97 E-bike injuries presented to the emergency department during this period. Mean age of E-bikers was 13.7 years (range, 7.5-16 years). Injuries to the head and the upper and the lower extremities were the most common. Thirteen patients (15%) were admitted, and 4 underwent surgery. CONCLUSIONS: Children are mainly injured as riders when using E-bikes. There is a need for regulation regarding the use of E-bikes to enhance the safety of both bikers and other road and pavement users. PMID- 29324634 TI - Point-of-Care Ultrasound Evaluation of Severe Renal Trauma in an Adolescent. AB - Traumatic renal injuries are more common in pediatrics because of the relatively larger size of the kidneys in the pediatric patient. Although computerized tomography remains the criterion standard for the initial evaluation of blunt renal trauma, there is evidence that renal ultrasound may serve a role in postinjury surveillance. Here, we present a case in which point-of-care ultrasound was used to image severe blunt renal trauma in a 17-year-old adolescent boy. In this case, point-of-care ultrasound identified severely distorted renal parenchyma after a grade 5 renal laceration was identified on computerized tomography scan. PMID- 29324635 TI - Diagnostic Value of Serum Urokinase-Type Plasminogen Activator Receptor in Children With Acute Appendicitis. AB - OBJECTIVES: Acute appendicitis (AA) is the most common surgical emergency in children. The accurate and timely diagnosis of AA in children can be challenging, and delayed diagnosis rates have been reported to range from 5.9% to 27.6%. Although combining clinical history and repeated physical examination with laboratory tests and radiographic imaging modalities help reach the diagnosis, novel biomarkers can support the surgeons' decision as well. The aims of this study were to evaluate a new plasma marker, urokinase-type plasminogen activator receptor (uPAR), to improve diagnostic accuracy in AA patients, and to determine a cutoff value of uPAR, which can safely include/exclude the diagnosis of AA. METHODS: We conducted a prospective study of children who underwent surgery for AA. Patients were categorized into the following 3 groups: group 1, controls consisted of 32 healthy volunteers; group 2, patients underwent surgery for nonperforated AA (n = 35); and group 3, patients underwent surgery for perforated AA (n = 21). Blood was sampled from group 1 at the admission and from group 2 and 3 before appendectomy. Serum uPAR, white blood cell count, absolute neutrophil count (ANC), and C-reactive protein concentrations were measured. RESULTS: Urokinase-type plasminogen activator receptor, ANC, and white blood cell count values were significantly higher in group 2 and 3 than group 1, but there was no significant difference between group 2 and 3. C-reactive protein values were significantly higher only in group 3 than other groups. The cutoff value for uPAR is 2.2 ng/mL with sensitivity of 85.7% and specificity of 84.3% and ANC is 5900 cells/mm with sensitivity of 91.1% and specificity of 96.9% to diagnose appendicitis. The specificity was 81.3% and sensitivity was raised to 98.2% when evaluated together. CONCLUSIONS: The incorporation of uPAR count and ANC could be a strong predictor of AA in children. PMID- 29324637 TI - The Chemistry of Alliums. AB - Physiologically active sulfur-containing compounds produced by Allium spp. have long fascinated chemists, biochemists, and biologists.[...]. PMID- 29324636 TI - Simple Sequence Repeat (SSR) Genetic Linkage Map of D Genome Diploid Cotton Derived from an Interspecific Cross between Gossypium davidsonii and Gossypium klotzschianum. AB - The challenge in tetraploid cotton cultivars is the narrow genetic base and therefore, the bottleneck is how to obtain interspecific hybrids and introduce the germplasm directly from wild cotton to elite cultivars. Construction of genetic maps has provided insight into understanding the genome structure, interrelationships between organisms in relation to evolution, and discovery of genes that carry important agronomic traits in plants. In this study, we generated an interspecific hybrid between two wild diploid cottons, Gossypium davidsonii and Gossypium klotzschianum, and genotyped 188 F2:3 populations in order to develop a genetic map. We screened 12,560 SWU Simple Sequence Repeat (SSR) primers and obtained 1000 polymorphic markers which accounted for only 8%. A total of 928 polymorphic primers were successfully scored and only 728 were effectively linked across the 13 chromosomes, but with an asymmetrical distribution. The map length was 1480.23 cM, with an average length of 2.182 cM between adjacent markers. A high percentage of the markers on the map developed, and for the physical map of G. raimondii, exhibited highly significant collinearity, with two types of duplication. High level of segregation distortion was observed. A total of 27 key genes were identified with diverse roles in plant hormone signaling, development, and defense reactions. The achievement of developing the F2:3 population and its genetic map constructions may be a landmark in establishing a new tool for the genetic improvement of cultivars from wild plants in cotton. Our map had an increased recombination length compared to other maps developed from other D genome cotton species. PMID- 29324638 TI - Molecular Research on Drug Induced Liver Injury. AB - Drugs may cause liver injury in a few susceptible individuals, but the molecular events that lead to this idiosyncratic, largely dose-independent and non predictable drug-induced liver injury (DILI) are mostly unknown, since animal models to explore the pathogenetic mechanisms of human idiosyncratic DILI are not yet reliable.[...]. PMID- 29324639 TI - Depopulation of Caged Layer Hens with a Compressed Air Foam System. AB - During the 2014-2015 US highly pathogenic avian influenza (HPAI) outbreak, 50.4 million commercial layers and turkeys were affected, resulting in economic losses of $3.3 billion. Rapid depopulation of infected poultry is vital to contain and eradicate reportable diseases like HPAI. The hypothesis of the experiment was that a compressed air foam (CAF) system may be used as an alternative to carbon dioxide (CO2) inhalation for depopulating caged layer hens. The objective of this study was to evaluate corticosterone (CORT) and time to cessation of movement (COM) of hens subjected to CAF, CO2 inhalation, and negative control (NEG) treatments. In Experiment 1, two independent trials were conducted using young and spent hens. Experiment 1 consisted of five treatments: NEG, CO2 added to a chamber, a CO2 pre-charged chamber, CAF in cages, and CAF in a chamber. In Experiment 2, only spent hens were randomly assigned to three treatments: CAF in cages, CO2 added to a chamber, and aspirated foam. Serum CORT levels of young hens were not significantly different among the CAF in cages, CAF in a chamber, NEG control, and CO2 inhalation treatments. However, spent hens subjected to the CAF in a chamber had significantly higher CORT levels than birds in the rest of the treatments. Times to COM of spent hens subjected to CAF in cages and aspirated foam were significantly greater than of birds exposed to the CO2 in a chamber treatment. These data suggest that applying CAF in cages is a viable alternative for layer hen depopulation during a reportable disease outbreak. PMID- 29324641 TI - Genetic Algorithm-Based Motion Estimation Method using Orientations and EMGs for Robot Controls. AB - Demand for interactive wearable devices is rapidly increasing with the development of smart devices. To accurately utilize wearable devices for remote robot controls, limited data should be analyzed and utilized efficiently. For example, the motions by a wearable device, called Myo device, can be estimated by measuring its orientation, and calculating a Bayesian probability based on these orientation data. Given that Myo device can measure various types of data, the accuracy of its motion estimation can be increased by utilizing these additional types of data. This paper proposes a motion estimation method based on weighted Bayesian probability and concurrently measured data, orientations and electromyograms (EMG). The most probable motion among estimated is treated as a final estimated motion. Thus, recognition accuracy can be improved when compared to the traditional methods that employ only a single type of data. In our experiments, seven subjects perform five predefined motions. When orientation is measured by the traditional methods, the sum of the motion estimation errors is 37.3%; likewise, when only EMG data are used, the error in motion estimation by the proposed method was also 37.3%. The proposed combined method has an error of 25%. Therefore, the proposed method reduces motion estimation errors by 12%. PMID- 29324640 TI - Heart Rate Variability Frequency Domain Alterations among Healthy Nurses Exposed to Prolonged Work Stress. AB - The deregulation of the autonomic nervous system assessed through the heart rate variability (HRV) analysis is a promising pathway linking work stress and cardiovascular diseases. We aim to investigate the associations between HRV High Frequency (HF) and Low Frequency (LF) powers and work stress in a sample of 36 healthy nurses. Perceived work stress was assessed twice one year apart, using the Job Content and Effort Reward Imbalance questionnaires. This allows to classify nurses in three exposure groups: "prolonged high stress" (PHS), "recent high stress" (RHS) and "stable low stress" (SLS). A 24-h ECG monitoring was later performed during a working day (WD) and a subsequent resting day (RD). Statistically significantly lower (p < 0.02) HF and LF means were found in PHS and RHS nurses during the working periods. In the subsequent resting periods, HF means showed increases over time in the RHS (beta = +0.41, p < 0.05), but not in PHS nurses. LF means did not show any substantial increases in the resting periods, in the PHS group with geometric means lower when compared to SLS, in the non-working and resting periods. Our study evidences that both prolonged and recent perceived high work stress were associated with a reduction of HF and LF powers during work. In addition, prolonged stress was associated with a lack of recovery during not-working and resting periods. PMID- 29324642 TI - Antibacterial and Antioxidant Capacities and Attenuation of Lipid Accumulation in 3T3-L1 Adipocytes by Low-Molecular-Weight Fucoidans Prepared from Compressional Puffing-Pretreated Sargassum Crassifolium. AB - In this study, we extracted fucoidan from compressional-puffing-pretreated Sargassum crassifolium by hot water. The crude extract of fucoidan (SC) was degraded by various degradation reagents and four low-molecular-weight (LMW) fucoidans, namely SCO (degradation by hydrogen peroxide), SCA (degradation by ascorbic acid), SCOA (degradation by hydrogen peroxide + ascorbic acid), and SCH (degradation by hydrogen chloride) were obtained. The degradation reagents studied could effectively degrade fucoidan into LMW fucoidans, as revealed by intrinsic viscosity, agarose gel electrophoresis, and molecular weight analyses. These LMW fucoidans had higher uronic acid content and sulfate content than those of SC. It was found that SCOA exhibited antibacterial activity. All LMW fucoidans showed antioxidant activities as revealed by DPPH (2,2-diphenyl-1 picrylhydrazyl), ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt), and FRAP (ferric reducing antioxidant power) methods. Biological experiments showed that SC and SCOA had relatively high activity for the reversal of H2O2-induced cell death in 3T3-L1 adipocytes, and SCOA showed the highest effect on attenuation of lipid accumulation in 3T3-L1 adipocytes. Therefore, for the LMW fucoidans tested, SCOA showed antibacterial activity and had a high fucose content, high sulfate content, high activity for the reversal of H2O2-induced cell death, and a marked effect on attenuation of lipid accumulation. It can thus be recommended as a natural and safe antibacterial and anti-adipogenic agent for food, cosmetic, and nutraceutical applications. PMID- 29324643 TI - Nutritional Status of Bariatric Surgery Candidates. AB - Obesity is a global epidemic affecting populations globally. Bariatric surgery is an effective treatment for morbid obesity, and has increased dramatically. Bariatric surgery candidates frequently have pre-existing nutritional deficiencies that might exacerbate post-surgery. To provide better health care management pre- and post-bariatric surgery, it is imperative to establish the nutritional status of prospective patients before surgery. The aim of this study was to assess and provide baseline data on the nutritional status of bariatric candidates. A retrospective study was conducted on obese patients who underwent bariatric surgery from 2008 to 2015. The medical records of 1538 patients were reviewed for this study. Pre-operatively, the most commonly observed vitamin deficiencies were Vitamin D (76%) and Vitamin B12 (16%). Anemia and iron status parameters were low in a considerable number of patients before surgery, as follows: hemoglobin 20%, mean corpuscular volume (MCV) 48%, ferritin 28%, serum iron 51%, and transferrin saturation 60%. Albumin and transferrin were found to be low in 10% and 9% of the patients, respectively, prior to surgery. In addition to deficiencies, a great number of patients had hypervitaminosis pre-operatively. Excess levels of Vitamin B6 (24%) was the most remarkable. The findings in this study advocate a close monitoring and tailored supplementation pre- and post bariatric surgery. PMID- 29324645 TI - Esophageal Web in a Down Syndrome Infant-A Rare Case Report. AB - We describe the rare case of an infant with trisomy 21 who presented with recurrent vomiting and aspiration pneumonia and a failure to thrive. Infants with Down's syndrome have been known to have various problems in the gastrointestinal tract. In the esophagus, what have been described are dysmotility, gastroesophageal reflux and strictures. This infant on evaluation was found to have an esophageal web and simple endoscopic dilatation relieved the infant of her symptoms. No similar case has been reported in literature. PMID- 29324644 TI - Nanocomposite of Half-Fin Anchovy Hydrolysates/Zinc Oxide Nanoparticles Exhibits Actual Non-Toxicity and Regulates Intestinal Microbiota, Short-Chain Fatty Acids Production and Oxidative Status in Mice. AB - The nanocomposite of half-fin anchovy hydrolysates (HAHp) and zinc oxide nanoparticles (ZnO NPs) (named as HAHp(3.0)/ZnO NPs) demonstrated increased antibacterial activity compared to either HAHp(3.0) or ZnO NPs as per our previous studies. Also, reactive oxygen species (ROS) formation was detected in Escherichia coli cells after treatment with HAHp(3.0)/ZnO NPs. The aim of the present study was to evaluate the acute toxicity of this nanocomposite and to investigate its effect on intestinal microbiota composition, short-chain fatty acids (SCFAs) production, and oxidative status in healthy mice. The limit test studies show that this nanoparticle is non-toxic at the doses tested. The administration of HAHp(3.0)/ZnO NPs, daily dose of 1.0 g/kg body weight for 14 days, increased the number of goblet cells in jejunum. High-throughput 16S ribosomal RNA gene sequencing of fecal samples revealed that HAHp(3.0)/ZnO NPs increased Firmicutes and reduced Bacteriodetes abundances in female mice. Furthermore, the microbiota for probiotic-type bacteria, including Lactobacillus and Bifidobacterium, and SCFAs-producing bacteria in the Clostridia class, e.g., Lachnospiraceae_unclassified and Lachnospiraceae_UCG-001, were enriched in the feces of female mice. Increases of SCFAs, especially statistically increased propionic and butyric acids, indicated the up-regulated anti-inflammatory activity of HAHp(3.0)/ZnO NPs. Additionally, some positive responses in liver, like markedly increased glutathione and decreased malonaldehyde contents, indicated the improved oxidative status. Therefore, our results suggest that HAHp(3.0)/ZnO NPs could have potential applications as a safe regulator of intestinal microbiota or also can be used as an antioxidant used in food products. PMID- 29324646 TI - Analysis of Microcystins in Cyanobacterial Blooms from Freshwater Bodies in England. AB - Cyanobacterial blooms in freshwater bodies in England are currently monitored reactively, with samples containing more than 20,000 cells/mL of potentially toxin-producing species by light microscopy resulting in action by the water body owner. Whilst significantly reducing the risk of microcystin exposure, there is little data describing the levels of these toxins present in cyanobacterial blooms. This study focused on the quantitative LC-MS/MS analysis of microcystins in freshwater samples, collected across England during 2016 and found to contain potentially toxin-producing cyanobacteria. More than 50% of samples contained quantifiable concentrations of microcystins, with approximately 13% exceeding the WHO medium health threshold of 20 MUg/L. Toxic samples were confirmed over a nine month period, with a clear increase in toxins during late summer, but with no apparent geographical patterns. No statistical relationships were found between total toxin concentrations and environmental parameters. Complex toxin profiles were determined and profile clusters were unrelated to cyanobacterial species, although a dominance of MC-RR was determined in water samples from sites associated with lower rainfall. 100% of samples with toxins above the 20 MUg/L limit contained cell densities above 20,000 cells/mL or cyanobacterial scum, showing the current regime is suitable for public health. Conversely, with only 18% of cell density threshold samples having total microcystins above 20 MUg/L, there is the potential for reactive water closures to unnecessarily impact upon the socio-economics of the local population. In the future, routine analysis of bloom samples by LC-MS/MS would provide a beneficial confirmatory approach to the current microscopic assessment, aiding both public health and the needs of water users and industry. PMID- 29324647 TI - Mapping Early, Middle and Late Rice Extent Using Sentinel-1A and Landsat-8 Data in the Poyang Lake Plain, China. AB - Areas and spatial distribution information of paddy rice are important for managing food security, water use, and climate change. However, there are many difficulties in mapping paddy rice, especially mapping multi-season paddy rice in rainy regions, including differences in phenology, the influence of weather, and farmland fragmentation. To resolve these problems, a novel multi-season paddy rice mapping approach based on Sentinel-1A and Landsat-8 data is proposed. First, Sentinel-1A data were enhanced based on the fact that the backscattering coefficient of paddy rice varies according to its growth stage. Second, cropland information was enhanced based on the fact that the NDVI of cropland in winter is lower than that in the growing season. Then, paddy rice and cropland areas were extracted using a K-Means unsupervised classifier with enhanced images. Third, to further improve the paddy rice classification accuracy, cropland information was utilized to optimize distribution of paddy rice by the fact that paddy rice must be planted in cropland. Classification accuracy was validated based on ground data from 25 field survey quadrats measuring 600 m * 600 m. The results show that: multi-season paddy rice planting areas effectively was extracted by the method and adjusted early rice area of 1630.84 km2, adjusted middle rice area of 556.21 km2, and adjusted late rice area of 3138.37 km2. The overall accuracy was 98.10%, with a kappa coefficient of 0.94. PMID- 29324648 TI - LSPR and Interferometric Sensor Modalities Combined Using a Double-Clad Optical Fiber. AB - We report on characterization of an optical fiber-based multi-parameter sensor concept combining localized surface plasmon resonance (LSPR) signal and interferometric sensing using a double-clad optical fiber. The sensor consists of a micro-Fabry-Perot in the form of a hemispherical stimuli-responsive hydrogel with immobilized gold nanorods on the facet of a cleaved double-clad optical fiber. The swelling degree of the hydrogel is measured interferometrically using the single-mode inner core, while the LSPR signal is measured using the multi mode inner cladding. The quality of the interferometric signal is comparable to previous work on hydrogel micro-Fabry-Perot sensors despite having gold nanorods immobilized in the hydrogel. We characterize the effect of hydrogel swelling and variation of bulk solution refractive index on the LSPR peak wavelength. The results show that pH-induced hydrogel swelling causes only weak redshifts of the longitudinal LSPR mode, while increased bulk refractive index using glycerol and sucrose causes large blueshifts. The redshifts are likely due to reduced plasmon coupling of the side-by-side configuration as the interparticle distance increases with increasing swelling. The blueshifts with increasing bulk refractive index are likely due to alteration of the surface electronic structure of the gold nanorods donated by the anionic polymer network and glycerol or sucrose solutions. The recombination of biotin-streptavidin on gold nanorods in hydrogel showed a 7.6 nm redshift of the longitudinal LSPR. The LSPR response of biotin-streptavidin recombination is due to the change in local refractive index (RI), which is possible to discriminate from the LSPR response due to changes in bulk RI. In spite of the large LSPR shifts due to bulk refractive index, we show, using biotin-functionalized gold nanorods binding to streptavidin, that LSPR signal from gold nanorods embedded in the anionic hydrogel can be used for label free biosensing. These results demonstrate the utility of immobilizing gold nanorods in a hydrogel on a double-clad optical fiber-end facet to obtain multi parameter sensing. PMID- 29324649 TI - Machine Learning Methods for Analysis of Metabolic Data and Metabolic Pathway Modeling. AB - Machine learning uses experimental data to optimize clustering or classification of samples or features, or to develop, augment or verify models that can be used to predict behavior or properties of systems. It is expected that machine learning will help provide actionable knowledge from a variety of big data including metabolomics data, as well as results of metabolism models. A variety of machine learning methods has been applied in bioinformatics and metabolism analyses including self-organizing maps, support vector machines, the kernel machine, Bayesian networks or fuzzy logic. To a lesser extent, machine learning has also been utilized to take advantage of the increasing availability of genomics and metabolomics data for the optimization of metabolic network models and their analysis. In this context, machine learning has aided the development of metabolic networks, the calculation of parameters for stoichiometric and kinetic models, as well as the analysis of major features in the model for the optimal application of bioreactors. Examples of this very interesting, albeit highly complex, application of machine learning for metabolism modeling will be the primary focus of this review presenting several different types of applications for model optimization, parameter determination or system analysis using models, as well as the utilization of several different types of machine learning technologies. PMID- 29324650 TI - Update on the Impact of Omega 3 Fatty Acids on Inflammation, Insulin Resistance and Sarcopenia: A Review. AB - Elderly and patients affected by chronic diseases face a high risk of muscle loss and impaired physical function. Omega 3 fatty acids (FA) attenuate inflammation and age-associated muscle loss, prevent systemic insulin resistance and improve plasma lipids, potentially impacting on sarcopenia. This paper aims to review recent randomized clinical studies assessing the effects a chronic omega 3 FA supplementation on inflammatory and metabolic profile during conditions characterized by sarcopenia (aging, insulin resistance, type 2 diabetes, chronic renal failure). A comprehensive search of three online databases was performed to identify eligible trials published between 2012 and 2017. A total of 36 studies met inclusion criteria. Omega 3 FA yielded mixed results on plasma triglycerides in the elderly and no effects in renal patients. No changes in systemic insulin resistance were observed. Inflammation markers did not benefit from omega 3 FA in insulin resistant and in renal subjects while decreasing in obese and elderly. Muscle related parameters improved in elderly and in renal patients. In conclusion, in aging- and in chronic disease-associated sarcopenia omega 3 FA are promising independently of associated anabolic stimuli or of anti-inflammatory effects. The evidence for improved glucose metabolism in insulin resistant and in chronic inflammatory states is less solid. PMID- 29324651 TI - Incidence, Microbiological Profile and Risk Factors of Healthcare-Associated Infections in Intensive Care Units: A 10 Year Observation in a Provincial Hospital in Southern Poland. AB - Healthcare-associated infections (HAIs) occurring in patients treated in an intensive care unit (ICU) are serious complications in the treatment process. Aetiological factors of these infections can have an impact on treatment effects, treatment duration and mortality. The aim of the study was to determine the prevalence and microbiological profile of HAIs in patients hospitalized in an ICU over a span of 10 years. The active surveillance method was used to detect HAIs in adult patients who spent over 48 h in a general ICU ward located in southern Poland between 2007 and 2016. The study was conducted in compliance with the methodology recommended by the Healthcare-associated Infections Surveillance Network (HAI-Net) of the European Centre for Disease Prevention and Control (ECDC). During the 10 years of the study, 1849 patients hospitalized in an ICU for a total of 17,599 days acquired 510 with overall HAIs rates of 27.6% and 29.0% infections per 1000 ICU days. Intubation-associated pneumonia (IAP) posed the greatest risk (15.2 per 1000 ventilator days), followed by CLA-BSI (8.0 per 1000 catheter days) and CA-UTI (3.0 per 1000 catheter days). The most common isolated microorganism was Acinetobacter baumannii (25%) followed by Coagulaase negativ staphylococci (15%), Escherichia coli (9%), Pseudomonas aeruginosa (8%), Klebsiella pneumoniae (7%), Candida albicans (6%). Acinetobacter baumannii in 87% and were classified as extensive-drug resistant (XDR). In summary, in ICU patients pneumonia and bloodstream infections were the most frequently found. Acinetobacter baumannii strains were most often isolated from clinical materials taken from HAI patients and showed resistance to many groups of antibiotics. A trend of increasing resistance of Acinetobacter baumannii to carbapenems was observed. PMID- 29324653 TI - Surgical Dynamometer to Simultaneously Measure the Tension Forces and the Distance between Wound Edges during the Closure of a Laparotomy. AB - The closure of the abdominal wall after making a laparotomy is a major challenge for surgeons, since a significant percentage of closures fail and incisional hernias rise. The suture has to withstand the forces required to close the incision, while not hindering the adequate wound healing progression. Currently, there is no surgical measuring device that could be used to determine the required closing forces, which can be very different depending on the patient. This paper presents a dynamometer to measure the tension forces to be applied while closing a surgical incision, and it simultaneously measures the distance between wound edges. It is a compass-like instrument. A mechanism between the two legs incorporates a load cell, whose signal is read by an electronic device that computes the values of the tension forces between wound edges. An angular position sensor at the pin joint between legs provides the distance between both sides of the incision. Measuring capabilities of the instrument prototype were verified at the laboratory. Thereafter, its functionality was demonstrated in experimental surgery tests. Therefore, the instrument could be very useful in clinical applications, assisting personalized surgical techniques. PMID- 29324655 TI - Evaluation of an Accelerated Workflow for Surveillance of ESBL (CTX-M)-Producing Escherichia coli Using Amplicon-Based Next-Generation Sequencing and Automated Analysis. AB - Outbreak management of extended spectrum beta-lactamase (ESBL)-producing pathogens requires rapid and accurate diagnosis. However, conventional screening is slow and labor-intensive. The vast majority of the screened samples are negative and detection of non-outbreak-related resistant micro-organisms often complicates outbreak management. In a CTX-M-15-producing Escherichia coli outbreak, 149 fecal samples and rectal eSwabs were collected by a cross-sectional survey in a Dutch nursing home. Samples were processed by routine diagnostic methods. Retrospectively, ESBL-producing bacteria and resistance genes were detected directly from eSwab medium by an accelerated workflow without prior enrichment cultures by an amplicon-based next-generation sequencing (NGS) method, and culture. A total of 27 (18.1%) samples were positive in either test. Sensitivity for CTX-M detection was 96.3% for the phenotypic method and 85.2% for the NGS method, and the specificity was 100% for both methods, as confirmed by micro-array. This resulted in a positive predictive value (PPV) of 100% for both methods, and a negative predictive value (NPV) of 99.2% and 96.8% for the phenotypic method and the NGS method, respectively. Time to result was four days and 14 h for the phenotypic method and the NGS method, respectively. In conclusion, the sensitivity without enrichment shows promising results for further use of amplicon-based NGS for screening during outbreaks. PMID- 29324654 TI - Zinc Status and Autoimmunity: A Systematic Review and Meta-Analysis. AB - Zinc is an essential trace element for living organisms and their biological processes. Zinc plays a key role in more than 300 enzymes and it is involved in cell communication, proliferation, differentiation and survival. Zinc plays also a role in regulating the immune system with implications in pathologies where zinc deficiency and inflammation are observed. In order to examine the experimental evidence reported in the literature regarding zinc levels in the body of patients with autoimmune disorders compared to control individuals, a systematic review and meta-analysis were performed. From 26,095 articles identified by literature search, only 179 of them were considered potentially relevant for our study and then examined. Of the 179 articles, only 62 satisfied the inclusion criteria. Particularly for Fixed Model, Zn concentration in both serum (mean effect = -1.19; confidence interval: -1.26 to -1.11) and plasma (mean effect = -3.97; confidence interval: -4.08 to -3.87) samples of autoimmune disease patients was significantly lower than in controls. The data presented in our work, although very heterogeneous in the manner of collecting and investigating samples, have proved to be extremely consistent in witnessing a deficiency of zinc in serum and plasma of patients compared to controls. PMID- 29324657 TI - alpha-Glucosidase Inhibition and Antibacterial Activity of Secondary Metabolites from the Ecuadorian Species Clinopodium taxifolium (Kunth) Govaerts. AB - The phytochemical investigation of both volatile and fixed metabolites of Clinopodium taxifolium (Kunth) Govaerts (Lamiaceae) was performed for the first time. It allowed the isolation and characterization of the essential oil and six known compounds: carvacrol (1), squalane (2), uvaol (3), erythrodiol (4), ursolic acid (5), and salvigenin (6). Their structures were identified and characterized by Nuclear Magnetic Resonance (NMR) and Gas Chromatography coupled to Mass Spectroscopy (GC-MS), and corroborated by literature. The essential oil of the leaves was obtained by hydrodistillation in two different periods and analyzed by GC-MS and GC coupled to Flame Ionization Detector (GC-FID). A total of 54 compounds were detected, of which 42 were identified (including trace constituents). The major constituents were carvacrol methyl ether (18.9-23.2%), carvacrol (13.8-16.3%) and, carvacryl acetate (11.4-4.8%). The antibacterial activities were determined as Minimum Inhibition Concentration (MIC) against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae, Proteus vulgaris, Pseudomonas aeruginosa and Micrococcus luteus. The hexane and methanol extracts exhibited activity only against Klebsiella pneumoniae (250 and 500 MUg/mL respectively), while the ethyl acetate extract was inactive. The hypoglycemic activity was evaluated by the in vitro inhibition of alpha-glucosidase. The ethyl acetate (EtOAc) extract showed strong inhibitory activity with IC50 = 24.88 ug/mL, however methanolic and hexanic extracts showed weak activity. As a pure compound, only ursolic acid showed a strong inhibitory activity, with IC50 = 72.71 MUM. PMID- 29324658 TI - Study of the Microstructure and Cracking Mechanisms of Hastelloy X Produced by Laser Powder Bed Fusion. AB - Hastelloy X (HX) is a Ni-based superalloy which suffers from high crack susceptibility during the laser powder bed fusion (LPBF) process. In this work, the microstructure of as-built HX samples was rigorously investigated to understand the main mechanisms leading to crack formation. The microstructural features of as-built HX samples consisted of very fine dendrite architectures with dimensions typically less than 1 um, coupled with the formation of sub micrometric carbides, the largest ones were mainly distributed along the interdendritic regions and grain boundaries. From the microstructural analyses, it appeared that the formation of intergranular carbides provided weaker zones, which combined with high thermal residual stresses resulted in hot cracks formation along the grain boundaries. The carbides were extracted from the austenitic matrix and characterized by combining different techniques, showing the formation of various types of Mo-rich carbides, classified as M6C, M12C and MnCm type. The first two types of carbides are typically found in HX alloy, whereas the last one is a metastable carbide probably generated by the very high cooling rates of the process. PMID- 29324652 TI - Food Addiction and Binge Eating: Lessons Learned from Animal Models. AB - The feeding process is required for basic life, influenced by environment cues and tightly regulated according to demands of the internal milieu by regulatory brain circuits. Although eating behaviour cannot be considered "addictive" under normal circumstances, people can become "addicted" to this behaviour, similarly to how some people are addicted to drugs. The symptoms, cravings and causes of "eating addiction" are remarkably similar to those experienced by drug addicts, and both drug-seeking behaviour as eating addiction share the same neural pathways. However, while the drug addiction process has been highly characterised, eating addiction is a nascent field. In fact, there is still a great controversy over the concept of "food addiction". This review aims to summarize the most relevant animal models of "eating addictive behaviour", emphasising binge eating disorder, that could help us to understand the neurobiological mechanisms hidden under this behaviour, and to improve the psychotherapy and pharmacological treatment in patients suffering from these pathologies. PMID- 29324660 TI - In Vitro Bioavailability Study of an Antiviral Compound Enisamium Iodide. AB - An investigation into the biopharmaceutics classification and a study of the in vitro bioavailability (permeability and solubility) of the antiviral compound enisamium iodide (4-(benzylcarbamoyl)-1-methylpyridinium iodide) were carried out. The solubility of enisamium iodide was determined in four different buffers. Apparent intestinal permeability (Papp) of enisamium iodide was assessed using human colon carcinoma (Caco-2) cells at three concentrations. The solubility of enisamium iodide in four buffer solutions from pH 1.2 to 7.5 is about 60 mg/mL at 25 degrees C, and ranges from 130 to 150 mg/mL at 37 degrees C, depending on the pH. Based on these results, enisamium iodide can be classified as highly soluble. Enisamium iodide demonstrated low permeability in Caco-2 experiments in all tested concentrations of 10-100 MUM with permeability coefficients between 0.2 * 10-6 cm s-1 and 0.3 * 10-6 cm s-1. These results indicate that enisamium iodide belongs to class III of the Biopharmaceutics Classification System (BCS) due to its high solubility and low permeability. The bioavailability of enisamium iodide needs to be confirmed in animal and human studies. PMID- 29324662 TI - Aryl Hydrocarbon Receptor Antagonists Mitigate the Effects of Dioxin on Critical Cellular Functions in Differentiating Human Osteoblast-Like Cells. AB - The inhibition of bone healing in humans is a well-established effect associated with cigarette smoking, but the underlying mechanisms are still unclear. Recent work using animal cell lines have implicated the aryl hydrocarbon receptor (AhR) as a mediator of the anti-osteogenic effects of cigarette smoke, but the complexity of cigarette smoke mixtures makes understanding the mechanisms of action a major challenge. 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD, dioxin) is a high-affinity AhR ligand that is frequently used to investigate biological processes impacted by AhR activation. Since there are dozens of AhR ligands present in cigarette smoke, we utilized dioxin as a prototype ligand to activate the receptor and explore its effects on pro-osteogenic biomarkers and other factors critical to osteogenesis using a human osteoblast-like cell line. We also explored the capacity for AhR antagonists to protect against dioxin action in this context. We found dioxin to inhibit osteogenic differentiation, whereas co treatment with various AhR antagonists protected against dioxin action. Dioxin also negatively impacted cell adhesion with a corresponding reduction in the expression of integrin and cadherin proteins, which are known to be involved in this process. Similarly, the dioxin-mediated inhibition of cell migration correlated with reduced expression of the chemokine receptor CXCR4 and its ligand, CXCL12, and co-treatment with antagonists restored migratory capacity. Our results suggest that AhR activation may play a role in the bone regenerative response in humans exposed to AhR activators, such as those present in cigarette smoke. Given the similarity of our results using a human cell line to previous work done in murine cells, animal models may yield data relevant to the human setting. In addition, the AhR may represent a potential therapeutic target for orthopedic patients who smoke cigarettes, or those who are exposed to secondhand smoke or other environmental sources of aryl hydrocarbons. PMID- 29324661 TI - Protein Activity of the Fusarium fujikuroi Rhodopsins CarO and OpsA and Their Relation to Fungus-Plant Interaction. AB - Fungi possess diverse photosensory proteins that allow them to perceive different light wavelengths and to adapt to changing light conditions in their environment. The biological and physiological roles of the green light-sensing rhodopsins in fungi are not yet resolved. The rice plant pathogen Fusarium fujikuroi exhibits two different rhodopsins, CarO and OpsA. CarO was previously characterized as a light-driven proton pump. We further analyzed the pumping behavior of CarO by patch-clamp experiments. Our data show that CarO pumping activity is strongly augmented in the presence of the plant hormone indole-3-acetic acid and in sodium acetate, in a dose-dependent manner under slightly acidic conditions. By contrast, under these and other tested conditions, the Neurospora rhodopsin (NR) like rhodopsin OpsA did not exhibit any pump activity. Basic local alignment search tool (BLAST) searches in the genomes of ascomycetes revealed the occurrence of rhodopsin-encoding genes mainly in phyto-associated or phytopathogenic fungi, suggesting a possible correlation of the presence of rhodopsins with fungal ecology. In accordance, rice plants infected with a CarO deficient F. fujikuroi strain showed more severe bakanae symptoms than the reference strain, indicating a potential role of the CarO rhodopsin in the regulation of plant infection by this fungus. PMID- 29324665 TI - Genome-Wide Methylation Patterns in Androgen-Independent Prostate Cancer Cells: A Comprehensive Analysis Combining MeDIP-Bisulfite, RNA, and microRNA Sequencing Data. AB - This study aimed to investigate the mechanisms underlying the development of the androgen-independent phenotype in prostate cancer. Methylation patterns were detected in androgen-independent and androgen-dependent lymph node carcinoma of the prostate (LNCaP) prostate carcinoma cells based on methylated DNA immunoprecipitation-bisulfite sequencing data and differentially methylated regions (DMRs) were identified. Differentially expressed genes (DEGs) and micro RNAs (miRNAs) with DMRs (named MDEGs and MDEmiRNAs) were identified by combining transcriptome and methylation data, and transcription factor (TF)-DEGs with DMRs in promoter (PMDEGs) and MDEmiRNA-MDEGs networks were constructed. Furthermore, a time-course analysis of gene transcription during androgen deprivation was performed based on microarray data and DMRs, MDEGs, and DEmiRNAs were validated. In total, 18,447 DMRs, 3369 MDEGs, 850 PMDEGs, and 1 MDEmiRNA (miR-429) were identified. A TF-target network (94 PMDEGs and 5 TFs) and a miRNA-target network (172 MDEGs and miR-429) were constructed. Based on the time-course analysis of genes in the networks, NEDD4L and PBX3 were targeted by SOX5, while GNAQ, ANLN, and KIF11 were targeted by miR-429. The expression levels of these genes and miR 429 were confirmed by quantitative real-time polymerase chain reaction. Additionally, 109 DMRs were confirmed using additional public datasets. The regulatory pathways SOX5-NEDD4L/PBX3, miR429-GNAQ/ANLN-RHOA, and miR429-ANLN KIF11 may participate in the progression of the androgen-independent phenotype in prostate cancer. PMID- 29324668 TI - Effect of Ultrasonic Extraction on Production and Structural Changes of C Phycocyanin from Marine Spirulina maxima. AB - This work first showed that very high amounts of phycocyanins, such as 11.3 mg/mL C-phycocyanin (C-PC), 3.1 mg/mL allophycocyanin (APC), and 0.8 mg/mL phycoerythrin (PE), can be obtained using an ultrasonic extraction process (UE) with a 60 kHz frequency and 3 h of process time at 25 degrees C, without any other pretreatments. These yields were higher than those from most conventional water extractions at 4 degrees C for 24 h (Control condition) or at 25 degrees C for 24 h (WE), namely, 9.8 and 5.7 mg/mL C-PC, 2.3 and 1.2 mg/mL APC, and 0.7 and 0.3 mg/mL PE, respectively. These yields were also shown to be even higher than yields from other reported data. Structural changes in C-PC in the extracts were also found for the first time, according to extraction conditions, showing that the total concentration of C-PC and of the alpha-subunit of C-PC in the UE were much higher than in the WE, with little difference in the amount of beta subunit of C-PC in the UE or WE. It was also shown that the structural changes in C-PC in the WE decreased both antioxidant and anti-inflammation activities-29.83% vs. 32.09% of alpha,alpha-diphenyl-beta-picrylhydrazyl (DPPH) scavenging activity and 8.21 vs. 7.25 uM of NO production for the WE and UE, respectively-while the UE, with similar patterns to standard C-PC, showed very high biological effects, which may suggest that the biologically active part is the alpha-subunit of C-PC, not the beta-subunit. PMID- 29324666 TI - Mapping the Schizophrenia Genes by Neuroimaging: The Opportunities and the Challenges. AB - Schizophrenia (SZ) is a heritable brain disease originating from a complex interaction of genetic and environmental factors. The genes underpinning the neurobiology of SZ are largely unknown but recent data suggest strong evidence for genetic variations, such as single nucleotide polymorphisms, making the brain vulnerable to the risk of SZ. Structural and functional brain mapping of these genetic variations are essential for the development of agents and tools for better diagnosis, treatment and prevention of SZ. Addressing this, neuroimaging methods in combination with genetic analysis have been increasingly used for almost 20 years. So-called imaging genetics, the opportunities of this approach along with its limitations for SZ research will be outlined in this invited paper. While the problems such as reproducibility, genetic effect size, specificity and sensitivity exist, opportunities such as multivariate analysis, development of multisite consortia for large-scale data collection, emergence of non-candidate gene (hypothesis-free) approach of neuroimaging genetics are likely to contribute to a rapid progress for gene discovery besides to gene validation studies that are related to SZ. PMID- 29324667 TI - Dietary Resveratrol Does Not Affect Life Span, Body Composition, Stress Response, and Longevity-Related Gene Expression in Drosophila melanogaster. AB - In this study, we tested the effect of the stilbene resveratrol on life span, body composition, locomotor activity, stress response, and the expression of genes encoding proteins centrally involved in ageing pathways in the model organism Drosophila melanogaster. Male and female w1118 D. melanogaster were fed diets based on sucrose, corn meal, and yeast. Flies either received a control diet or a diet supplemented with 500 umol/L resveratrol. Dietary resveratrol did not affect mean, median, and maximal life span of male and female flies. Furthermore, body composition remained largely unchanged following the resveratrol supplementation. Locomotor activity, as determined by the climbing index, was not significantly different between control and resveratrol supplemented flies. Resveratrol-fed flies did not exhibit an improved stress response towards hydrogen peroxide as compared to controls. Resveratrol did not change mRNA steady levels of antioxidant (catalase, glutathione-S-transferase, NADH dehydrogenase, glutathione peroxidase, superoxide dismutase 2) and longevity related genes, including sirtuin 2, spargel, and I'm Not Dead Yet. Collectively, present data suggest that resveratrol does not affect life span, body composition, locomotor activity, stress response, and longevity-associated gene expression in w1118 D. melanogaster. PMID- 29324669 TI - Nanoporous Polymers Based on Liquid Crystals. AB - In the present review, we discuss recent advances in the field of nanoporous networks based on polymerisable liquid crystals. The field has matured in the last decade, yielding polymers having 1D, 2D, and 3D channels with pore sizes on the nanometer scale. Next to the current progress, some of the future challenges are presented, with the integration of nanoporous membranes in functional devices considered as the biggest challenge. PMID- 29324670 TI - Dietary Carotenoid Intakes and Prostate Cancer Risk: A Case-Control Study from Vietnam. AB - The incidence of prostate cancer has increased in Vietnam, but there have been few studies of the risk factors associated with this change. This retrospective case-control study investigated the relation of the intake of carotenoids and their food sources to prostate cancer risk. A sample of 652 participants (244 incident prostate cancer patients, aged 64-75 years, and 408 age frequency matched controls) were recruited in Ho Chi Minh City during 2013-2015. The habitual diet was ascertained with a validated food-frequency questionnaire, and other factors including demographic and lifestyle characteristics were assessed via face-to-face interviews by trained nurses. Multivariate-adjusted odds ratios (OR) and 95% confidence intervals (CI) were estimated using unconditional logistic regression models. The risk of prostate cancer decreased with increasing intakes of lycopene, tomatoes, and carrots; the respective ORs (95% CIs) were 0.46 (0.27, 0.77), 0.39 (0.23, 0.66), and 0.35 (0.21, 0.58), when comparing the highest with the lowest tertile of intake (p for trend < 0.01). No statistically significant associations were found for the intake of alpha-carotene, beta carotene, beta-cryptoxanthin, lutein, zeaxanthin, and major food sources of carotenoids. In conclusion, Vietnamese men with a higher intake of lycopene, tomatoes, and carrots may have a lower risk of prostate cancer. However, large prospective studies are needed in this population to confirm this finding. PMID- 29324671 TI - Spatiotemporal Patterns of Ground Monitored PM2.5 Concentrations in China in Recent Years. AB - This paper firstly explores the space-time evolution of city-level PM 2.5 concentrations showed a very significant seasonal cycle type fluctuation during the period between 13 May 2014 and 30 May 2017. The period from October to April following each year was a heavy pollution period, whereas the phase from April to October of the current year was part of a light pollution period. The average monthly PM 2.5 concentrations in mainland China based on ground monitoring, employing a descriptive statistics method and a Bayesian spatiotemporal hierarchy model. Daily and weekly average PM 2.5 concentrations in 338 cities in mainland China presented no significant spatial difference during the severe pollution period but a large spatial difference during light pollution periods. The severe PM 2.5 pollution areas were mainly distributed in the Beijing-Tianjin-Hebei urban agglomeration in the North China Plain during the beginning of each autumn-winter season (September), spreading to the Northeast Plains after October, then later continuing to spread to other cities in mainland China, eventually covering most cities. PM 2.5 pollution in China appeared to be a cyclic characteristic of first spreading and then centralizing in the space in two spring-summer seasons, and showed an obvious process of first diffusing then transferring to shrinkage alternation during the spring-summer season of 2015, but showed no obvious diffusion during the spring-summer season of 2016, maintaining a stable spatial structure after the shrinkage in June, as well as being more concentrated. The heavily polluted areas are continuously and steadily concentrated in East China, Central China and Xinjiang Province. PMID- 29324672 TI - Genome-Wide Identification, Expression, and Functional Analysis of the Alkaline/Neutral Invertase Gene Family in Pepper. AB - Alkaline/neutral invertase (NINV) proteins irreversibly cleave sucrose into fructose and glucose, and play important roles in carbohydrate metabolism and plant development. To investigate the role of NINVs in the development of pepper fruits, seven NINV genes (CaNINV1-7) were identified. Phylogenetic analysis revealed that the CaNINV family could be divided into alpha and beta groups. CaNINV1-6 had typical conserved regions and similar protein structures to the NINVs of other plants, while CaNINV7 lacked amino acid sequences at the C terminus and N-terminus ends. An expression analysis of the CaNINV genes in different tissues demonstrated that CaNINV5 is the dominant NINV in all the examined tissues (root, stem, leaf, bud, flower, and developmental pepper fruits stage). Notably, the expression of CaNINV5 was found to gradually increase at the pre-breaker stages, followed by a decrease at the breaker stages, while it maintained a low level at the post-breaker stages. Furthermore, the invertase activity of CaNINV5 was identified by functional complementation of the invertase deficient yeast strain SEY2102, and the optimum pH of CaNINV5 was found to be ~7.5. The gene expression and enzymatic activity of CaNINV5 suggest that it might be the main NINV enzyme for hydrolysis of sucrose during pepper fruit development. PMID- 29324674 TI - Calcitriol Supplementation Causes Decreases in Tumorigenic Proteins and Different Proteomic and Metabolomic Signatures in Right versus Left-Sided Colon Cancer. AB - Vitamin D deficiency is a common problem worldwide. In particular, it is an issue in the Northern Hemisphere where UVB radiation does not penetrate the atmosphere as readily. There is a correlation between vitamin D deficiency and colorectal cancer incidence and mortality. Furthermore, there is strong evidence that cancer of the ascending (right side) colon is different from cancer of the descending (left side) colon in terms of prognosis, tumor differentiation, and polyp type, as well as at the molecular level. Right-side tumors have elevated Wnt signaling and are more likely to relapse, whereas left-side tumors have reduced expression of tumor suppressor genes. This study seeks to understand both the proteomic and metabolomic changes resulting from treatment of the active metabolite of vitamin D, calcitriol, in right-sided and left-sided colon cancer. Our results show that left-sided colon cancer treated with calcitriol has a substantially greater number of changes in both the proteome and the metabolome than right-sided colon cancer. We found that calcitriol treatment in both right-sided and left-sided colon cancer causes a downregulation of ribosomal protein L37 and protein S100A10. Both of these proteins are heavily involved in tumorigenesis, suggesting a possible mechanism for the correlation between low vitamin D levels and colon cancer. PMID- 29324675 TI - A Time-Domain Analog Spatial Compressed Sensing Encoder for Multi-Channel Neural Recording. AB - A time-domain analog spatial compressed sensing encoder for neural recording applications is proposed. Owing to the advantage of MEMS technologies, the number of channels on a silicon neural probe array has doubled in 7.4 years, and therefore, a greater number of recording channels and higher density of front-end circuitry is required. Since neural signals such as action potential (AP) have wider signal bandwidth than that of an image sensor, a data compression technique is essentially required for arrayed neural recording systems. In this paper, compressed sensing (CS) is employed for data reduction, and a novel time-domain analog CS encoder is proposed. A simpler and lower power circuit than conventional analog or digital CS encoders can be realized by using the proposed CS encoder. A prototype of the proposed encoder was fabricated in a 180 nm 1P6M CMOS process, and it achieved an active area of 0.0342 mm 2 / ch . and an energy efficiency of 25.0 pJ / ch . . conv . PMID- 29324676 TI - Enantiomeric Resolution and Docking Studies of Chiral Xanthonic Derivatives on Chirobiotic Columns. AB - A systematic study of enantioresolution of a library of xanthonic derivatives, prepared "in-house", was successfully carried out with four commercially available macrocyclic glycopeptide-based columns, namely ChirobioticTM T, ChirobioticTM R, ChirobioticTM V and ChirobioticTM TAG. Evaluation was conducted in multimodal elution conditions: normal-phase, polar organic, polar ionic and reversed-phase. The effects of the mobile phase composition, the percentage of organic modifier, the pH of the mobile phase, the nature and concentration of different mobile phase additives on the chromatographic parameters are discussed. ChirobioticTM T and ChirobioticTM V, under normal-phase and reversed-phase modes, respectively, presented the best chromatographic parameters. Considering the importance of understanding the chiral recognition mechanisms associated with the chromatographic enantioresolution, and the scarce data available for macrocyclic glycopeptide-based columns, computational studies by molecular docking were also carried out. PMID- 29324677 TI - Dinuclear Nickel(I) and Palladium(I) Complexes for Highly Active Transformations of Organic Compounds. AB - In typical catalytic organic transformations, transition metals in catalytically active complexes are present in their most stable valence states, such as palladium(0) and (II). However, some dimeric monovalent metal complexes can be stabilized by auxiliary ligands to form diamagnetic compounds with metal-metal bonding interactions. These diamagnetic compounds can act as catalysts while retaining their dimeric forms, split homolytically or heterolytically into monomeric forms, which usually have high activity, or in contrast, become completely deactivated as catalysts. Recently, many studies using group 10 metal complexes containing nickel and palladium have demonstrated that under specific conditions, the active forms of these catalyst precursors are not mononuclear zerovalent complexes, but instead dinuclear monovalent metal complexes. In this mini-review, we have surveyed the preparation, reactivity, and the catalytic processes of dinuclear nickel(I) and palladium(I) complexes, focusing on mechanistic insights into the precatalyst activation systems and the structure and behavior of nickel and palladium intermediates. PMID- 29324678 TI - Immobilization of Enzymes on a Phospholipid Bionically Modified Polysulfone Gradient-Pore Membrane for the Enhanced Performance of Enzymatic Membrane Bioreactors. AB - Enzymatic membrane bioreactors (EMBRs), with synergistic catalysis-separation performance, have increasingly been used for practical applications. Generally, the membrane properties, particularly the pore structures and interface interactions, have a significant impact on the catalytic efficiency of the EMBR. Therefore, a biomimetic interface based on a phospholipid assembled onto a polysulfone hollow-fiber membrane with perfect radial gradient pores (RGM-PSF) has been prepared in this work to construct a highly efficient and stable EMBR. On account of the special pore structure of the RGM-PSF with the apertures decreasing gradually from the inner side to the outer side, the enzyme molecules could be evenly distributed on the three-dimensional skeleton of the membrane. In addition, the supported phospholipid layer in the membrane, prepared by physical adsorption, was used for the immobilization of the enzymes, which provides sufficient linkage to prevent the enzymes from leaching but also accommodates as many enzyme molecules as possible to retain high bioactivity. The properties of the EMBR were studied by using lipase from Candida rugosa for the hydrolysis of glycerol triacetate as a model. Energy-dispersive X-ray and circular dichroism spectroscopy were employed to observe the effect of lecithin on the membrane and structure changes in the enzyme, respectively. The operational conditions were investigated to optimize the performance of the EMBR by testing substrate concentrations from 0.05 to 0.25 M, membrane fluxes from 25.5 to 350.0 L.m-2.h-1, and temperatures from 15 to 55 degrees C. As a result, the obtained EMBR showed a desirable performance with 42% improved enzymatic activity and 78% improved catalytic efficiency relative to the unmodified membrane. PMID- 29324679 TI - Antibacterial Evaluation and Virtual Screening of New Thiazolyl-Triazole Schiff Bases as Potential DNA-Gyrase Inhibitors. AB - The global spread of bacterial resistance to drugs used in therapy requires new potent and safe antimicrobial agents. DNA gyrases represent important targets in drug discovery. Schiff bases, thiazole, and triazole derivatives are considered key scaffolds in medicinal chemistry. Fifteen thiazolyl-triazole Schiff bases were evaluated for their antibacterial activity, measuring the growth inhibition zone diameter, the minimum inhibitory concentration (MIC), and the minimum bactericidal concentration (MBC), against Gram-positive (Staphylococcus aureus, Listeria monocytogenes) and Gram-negative (Escherichia coli, Salmonella typhimurium, Pseudomonas aeruginosa) bacteria. The inhibition of S. aureus and S. typhimurium was modest. Compounds B1, B2, and B9 showed a similar effect as ciprofloxacin, the antimicrobial reference, against L. monocytogenes. B10 displayed a better effect. Derivatives B1, B5-7, B9, and B11-15 expressed MIC values lower than the reference, against L. monocytogenes. B5, B6, and B11-15 strongly inhibited the growth of P. aeruginosa. All compounds were subjected to an in silico screening of the ADMET (absorption, distribution, metabolism, elimination, toxicity) properties. Molecular docking was performed on the gyrA and gyrB from L. monocytogenes. The virtual screening concluded that thiazolyl triazole Schiff base B8 is the best drug-like candidate, satisfying requirements for both safety and efficacy, being more potent against the bacterial gyrA than ciprofloxacin. PMID- 29324680 TI - Phylogenetic Analysis and Characterization of a Sporadic Isolate of Equine Influenza A H3N8 from an Unvaccinated Horse in 2015. AB - Equine influenza, caused by the H3N8 subtype, is a highly contagious respiratory disease affecting equid populations worldwide and has led to serious epidemics and transboundary pandemics. This study describes the phylogenetic characterization and replication kinetics of recently-isolated H3N8 virus from a nasal swab obtained from a sporadic case of natural infection in an unvaccinated horse from Montana, USA. The nasal swab tested positive for equine influenza by Real-Time Quantitative Reverse Transcription Polymerase Chain Reaction (RT-PCR). Further, the whole genome sequencing of the virus confirmed that it was the H3N8 subtype and was designated as A/equine/Montana/9564-1/2015 (H3N8). A BLASTn search revealed that the polymerase basic protein 1 (PB1), polymerase acidic (PA), hemagglutinin (HA), nucleoprotein (NP), and matrix (M) segments of this H3N8 isolate shared the highest percentage identity to A/equine/Tennessee/29A/2014 (H3N8) and the polymerase basic protein 2 (PB2), neuraminidase (NA), and non-structural protein (NS) segments to A/equine/Malaysia/M201/2015 (H3N8). Phylogenetic characterization of individual gene segments, using currently available H3N8 viral genomes, of both equine and canine origin, further established that A/equine/Montana/9564-1/2015 belonged to the Florida Clade 1 viruses. Interestingly, replication kinetics of this H3N8 virus, using airway derived primary cells from multiple species, such as equine, swine, bovine, and human lung epithelial cells, demonstrated appreciable titers, when compared to Madin-Darby canine kidney epithelial cells. These findings indicate the broad host spectrum of this virus isolate and suggest the potential for cross-species transmissibility. PMID- 29324681 TI - PPoma Review: Epidemiology, Aetiopathogenesis, Prognosis and Treatment. AB - Generally, pancreatic polypeptide-secreting tumor of the distal pancreas (PPoma) is classified as a rare tumor, and may occur sporadically or be associated in families or with multiple endocrine neoplasia type 1 (NEM 1). It grows slowly, reaching large dimensions at the time of diagnosis and the symptomatology is fundamentally due to the mass effect, causing either non-specific abdominal pain or symptoms suggestive of obstruction of the pancreatic or biliary duct. Therefore, when detected, they are usually malignant, with metastases mainly in the liver. The combination of serum analysis of increased levels of chromogranin A and pancreatic polypeptide and pancreastatin is very useful with a sensitivity of up to 95%. However, in addition, scintigraphicexams with somatostatin analogues should be performed to better clarify the diagnosis. Surgical resection is the treatment of choice, despite surgical difficulty and because they are generally palliative due to the metastases. Surgeries for tumor volume reduction are also performed to relieve symptoms. Chemotherapy commonly uses streptozotocin and somatostatin analogues to treat residual disease. Unfortunately, the survival rates are still very low, less than 10%, and if metastases already exist, this percentage drops to 3%. PMID- 29324682 TI - Malnutrition, Inflammation, Atherosclerosis Syndrome (MIA) and Diet Recommendations among End-Stage Renal Disease Patients Treated with Maintenance Hemodialysis. AB - Malnutrition-inflammation-atherosclerosis syndrome is one of the causes of increased mortality in chronic kidney disease (CKD). The aim of the study was to assess the inflammation and nutritional status of patients in end-stage kidney disease treated with maintenance hemodialysis. The study included a group of 98 hemodialyzed patients with stage 5 CKD (38 women and 60 men). Albumin, prealbumin (PRE), and C-reactive protein (CRP) were measured in serum samples collected before mid-week dialysis. Fruit and vegetables frequency intakes were assessed with a questionnaire. CRP was above the reference limit of 5 mg/L in 53% of patients. Moreover, the Glasgow Prognostic Score (GPS) indicated the co occurrence of inflammation and protein calorie malnutrition in 11% of patients, and the presence of either inflammation or malnutrition in 25%. The questionnaire revealed that hemodialyzed patients frequently exclude fruit and vegetables from their diets. Nearly 43% of the interviewed patients declared frequently eating vegetables, and 35% declared frequently eating fruit, a few times per week or less. The most frequently selected fruit and vegetables had a low antioxidant capacity. The strict dietary restrictions in CKD are difficult to fulfill, and if strictly followed, may lead to protein-calorie malnutrition. PMID- 29324684 TI - Comparative Effect of Self- or Dual-Curing on Polymerization Kinetics and Mechanical Properties in a Novel, Dental-Resin-Based Composite with Alkaline Filler. Running Title: Resin-Composites with Alkaline Fillers. AB - Dental bulk-fill restorations with resin-composites (RBC) are increasing in popularity, but doubts concerning insufficient curing in depth still disconcert clinicians. An alternative might be offered by modern dual-cured RBCs, which additionally provide bioactive properties. This study assessed the impact of additional light-curing on polymerization kinetics, the degree of conversion (DC) and mechanical properties of a novel, dual-cured RBC with alkaline fillers. Since the bioactivity of a material often implies a release of compounds, the mechanical stability in simulated clinical environments was also evaluated. Polymerization kinetics and DC were assessed at 2- and 4-mm specimen depths in real-time up to one hour (n = 6). Incident and transmitted irradiance and radiant exposure were recorded at 2- and 4-mm depths. Micro-mechanical profiles (n = 6) were assessed in 100-um steps along 6-mm deep specimens at 24 h post polymerization. Flexural strength and modulus (n = 10) were determined up to three months of immersion in neutral (6.8) and acidic (4) pH conditions. DC variation in time was best described by a sigmoidal function (R2 > 0.98), revealing a retarded (3.4 +/- 0.4 min) initiation in C=C double bond conversion in self-cured versus dual-cured specimens. The setting reaction kinetic was identical at 2- and 4-mm depths for the self-cure mode. For the dual-cure mode, polymerization initiated at 2-mm depth instantly with light-irradiation, while being retarded (0.8 min) at 4-mm depth. The material behaves similarly, irrespective of curing mode or depth, later than 11 min after mixing. Flexural strength and modulus was comparable to regular RBCs and maintained up to three months in both neutral and acidic conditions. Additional light-curing initially accelerates the polymerization kinetic and might help shorten the restauration procedure by hardening the material on demand, however with no effect on the final properties. PMID- 29324683 TI - Pentoxifylline and Methylprednisolone Additively Alleviate Kidney Failure and Prolong Survival of Rats after Renal Warm Ischemia-Reperfusion. AB - Renal ischemia-reperfusion injury (IRI) induces local inflammation leading to kidney damage. Since pentoxifylline (PTX) and steroids have distinct immunomodulatory properties, we aimed to evaluate for the first time their combined use in IRI-induced acute kidney injury (AKI) and chronic kidney disease (CKD) in rats. In two experiments, PTX (100 mg/kg body weight subcutaneously) was administered 90 min prior to renal IRI or/and methylprednisolone (MP; 100 mg/kg body weight intramuscularly) was infused 60 min after reperfusion of a solitary kidney (AKI model: 45 min ischemia, 48 male Sprague-Dawley rats) or one kidney with excision of contralateral kidney 2 weeks later (CKD model: 90 min ischemia, 38 rats). Saline was infused in place of PTX or/and MP depending on the group. Renal function (diuresis, serum creatinine, creatinine clearance, sodium and potassium excretion, and urine protein/creatinine) was assessed at 48 h and 120 h post-IRI (AKI model) or 4, 16 and 24 weeks after IRI, along with survival analysis (CKD model). More evidently at early stages of AKI or CKD, treated animals showed higher glomerular filtration and diminished tubular loss of electrolytes, more so with PTX + MP than PTX or MP (serum creatinine (MUmol/L) at 48 h of AKI: 60.9 +/- 19.1 vs. 131.1 +/- 94.4 vs. 233.4 +/- 137.0, respectively, vs. 451.5 +/- 114.4 in controls, all p < 0.05; and at 4 weeks of CKD: 89.0 +/- 31.9 vs. 118.1 +/- 64.5 vs. 156.9 +/- 72.6, respectively, vs. 222.9 +/- 91.4 in controls, p < 0.05 for PTX or PTX + MP vs. controls and PTX + MP vs. MP). Survival was better by >2-fold with PTX + MP (89%) vs. controls (40%; p < 0.05). PTX + MP largely protect from IRI-induced AKI and CKD and subsequent mortality in rats. This calls for clinical investigations, especially in kidney transplantation. PMID- 29324686 TI - Theoretical Analysis and Design of Ultrathin Broadband Optically Transparent Microwave Metamaterial Absorbers. AB - Optically Transparent Microwave Metamaterial Absorber (OTMMA) is of significant use in both civil and military field. In this paper, equivalent circuit model is adopted as springboard to navigate the design of OTMMA. The physical model and absorption mechanisms of ideal lightweight ultrathin OTMMA are comprehensively researched. Both the theoretical value of equivalent resistance and the quantitative relation between the equivalent inductance and equivalent capacitance are derived for design. Frequency-dependent characteristics of theoretical equivalent resistance are also investigated. Based on these theoretical works, an effective and controllable design approach is proposed. To validate the approach, a wideband OTMMA is designed, fabricated, analyzed and tested. The results reveal that high absorption more than 90% can be achieved in the whole 6~18 GHz band. The fabricated OTMMA also has an optical transparency up to 78% at 600 nm and is much thinner and lighter than its counterparts. PMID- 29324685 TI - Novel Spectroscopic and Electrochemical Sensors and Nanoprobes for the Characterization of Food and Biological Antioxidants. AB - Since an unbalanced excess of reactive oxygen/nitrogen species (ROS/RNS) causes various diseases, determination of antioxidants that can counter oxidative stress is important in food and biological analyses. Optical/electrochemical nanosensors have attracted attention in antioxidant activity (AOA) assessment because of their increased sensitivity and selectivity. Optical sensors offer advantages such as low cost, flexibility, remote control, speed, miniaturization and on site/in situ analysis. Electrochemical sensors using noble metal nanoparticles on modified electrodes better catalyze bioelectrochemical reactions. We summarize the design principles of colorimetric sensors and nanoprobes for food antioxidants (including electron-transfer based and ROS/RNS scavenging assays) and important milestones contributed by our laboratory. We present novel sensors and nanoprobes together with their mechanisms and analytical performances. Our colorimetric sensors for AOA measurement made use of cupric-neocuproine and ferric-phenanthroline complexes immobilized on a Nafion membrane. We recently designed an optical oxidant/antioxidant sensor using N,N-dimethyl-p-phenylene diamine (DMPD) as probe, from which ROS produced colored DMPD-quinone cationic radicals electrostatically retained on a Nafion membrane. The attenuation of initial color by antioxidants enabled indirect AOA estimation. The surface plasmon resonance absorption of silver nanoparticles as a result of enlargement of citrate-reduced seed particles by antioxidant addition enabled a linear response of AOA. We determined biothiols with Ellman reagent-derivatized gold nanoparticles. PMID- 29324687 TI - Intraperitoneal Administration of Oxygen/Ozone to Rats Reduces the Pancreatic Damage Induced by Streptozotocin. AB - Background: The rat model of streptozotocin (STZ)-induced pancreatic damage was used to examine whether a systemic oxygen/ozone mixture could be beneficial for the pancreas by reducing the machinery of the local detrimental mediators released by STZ. Results: The results showed that oxygen/ozone administration (150 ug/Kg i.p.) for ten days in STZ rats increased the endogenous glutathione-s transferase (GST) enzyme and nuclear factor-erythroid 2-related factor 2 (Nrf2) into the pancreatic tissue, together with reduction of 4-hydroxynonenal (4-HNE) and PARP-1 compared to STZ rats receiving O2 only. Interestingly, these changes resulted in higher levels of serum insulin and leptin, and pancreatic glucagon immunostaining. Consequently, glucose metabolism improved as evidenced by the monitoring of glycemia throughout. Conclusions: This study provides evidence that systemic administration of oxygen/ozone reduces the machinery of detrimental mediators released by STZ into the pancreas with less local damage and better functionality. PMID- 29324688 TI - On Multi-Objective Based Constitutive Modelling Methodology and Numerical Validation in Small-Hole Drilling of Al6063/SiCp Composites. AB - Discrepancies in capturing material behavior of some materials, such as Particulate Reinforced Metal Matrix Composites, by using conventional ad hoc strategy make the applicability of Johnson-Cook constitutive model challenged. Despites applicable efforts, its extended formalism with more fitting parameters would increase the difficulty in identifying constitutive parameters. A weighted multi-objective strategy for identifying any constitutive formalism is developed to predict mechanical behavior in static and dynamic loading conditions equally well. These varying weighting is based on the Gaussian-distributed noise evaluation of experimentally obtained stress-strain data in quasi-static or dynamic mode. This universal method can be used to determine fast and directly whether the constitutive formalism is suitable to describe the material constitutive behavior by measuring goodness-of-fit. A quantitative comparison of different fitting strategies on identifying Al6063/SiCp's material parameters is made in terms of performance evaluation including noise elimination, correlation, and reliability. Eventually, a three-dimensional (3D) FE model in small-hole drilling of Al6063/SiCp composites, using multi-objective identified constitutive formalism, is developed. Comparison with the experimental observations in thrust force, torque, and chip morphology provides valid evidence on the applicability of the developed multi-objective identification strategy in identifying constitutive parameters. PMID- 29324689 TI - Characterization of Translationally Controlled Tumour Protein from the Sea Anemone Anemonia viridis and Transcriptome Wide Identification of Cnidarian Homologues. AB - Gene family encoding translationally controlled tumour protein (TCTP) is defined as highly conserved among organisms; however, there is limited knowledge of non bilateria. In this study, the first TCTP homologue from anthozoan was characterised in the Mediterranean Sea anemone, Anemonia viridis. The release of the genome sequence of Acropora digitifera, Exaiptasia pallida, Nematostella vectensis and Hydra vulgaris enabled a comprehensive study of the molecular evolution of TCTP family among cnidarians. A comparison among TCTP members from Cnidaria and Bilateria showed conserved intron exon organization, evolutionary conserved TCTP signatures and 3D protein structure. The pattern of mRNA expression profile was also defined in A. viridis. These analyses revealed a constitutive mRNA expression especially in tissues with active proliferation. Additionally, the transcriptional profile of A. viridis TCTP (AvTCTP) after challenges with different abiotic/biotic stresses showed induction by extreme temperatures, heavy metals exposure and immune stimulation. These results suggest the involvement of AvTCTP in the sea anemone defensome taking part in environmental stress and immune responses. PMID- 29324690 TI - Effects of Agitation, Aeration and Temperature on Production of a Novel Glycoprotein GP-1 by Streptomyces kanasenisi ZX01 and Scale-Up Based on Volumetric Oxygen Transfer Coefficient. AB - The effects of temperature, agitation and aeration on glycoprotein GP-1 production by Streptomyces kanasenisi ZX01 in bench-scale fermentors were systematically investigated. The maximum final GP-1 production was achieved at an agitation speed of 200 rpm, aeration rate of 2.0 vvm and temperature of 30 degrees C. By using a dynamic gassing out method, the effects of agitation and aeration on volumetric oxygen transfer coefficient (kLa) were also studied. The values of volumetric oxygen transfer coefficient in the logarithmic phase increased with increase of agitation speed (from 14.53 to 32.82 h-1) and aeration rate (from 13.21 to 22.43 h-1). In addition, a successful scale-up from bench scale to pilot-scale was performed based on volumetric oxygen transfer coefficient, resulting in final GP-1 production of 3.92, 4.03, 3.82 and 4.20 mg/L in 5 L, 15 L, 70 L and 500 L fermentors, respectively. These results indicated that constant volumetric oxygen transfer coefficient was appropriate for the scale-up of batch fermentation of glycoprotein GP-1 by Streptomyces kanasenisi ZX01, and this scale-up strategy successfully achieved 100-fold scale-up from bench-scale to pilot-scale fermentor. PMID- 29324691 TI - Physiological and Comparative Genomic Analysis of Arthrobacter sp. SRS-W-1-2016 Provides Insights on Niche Adaptation for Survival in Uraniferous Soils. AB - Arthrobacter sp. strain SRS-W-1-2016 was isolated on high concentrations of uranium (U) from the Savannah River Site (SRS) that remains co-contaminated by radionuclides, heavy metals, and organics. SRS is located on the northeast bank of the Savannah River (South Carolina, USA), which is a U.S. Department of Energy (DOE) managed ecosystem left historically contaminated from decades of nuclear weapons production activities. Predominant contaminants within the impacted SRS environment include U and Nickel (Ni), both of which can be transformed microbially into less toxic forms via metal complexation mechanisms. Strain SRS-W 1-2016 was isolated from the uraniferous SRS soils on high concentrations of U (4200 MUM) and Ni (8500 MUM), but rapid growth was observed at much lower concentrations of 500 MUM U and 1000 MUM Ni, respectively. Microcosm studies established with strain SRS-W-1-2016 revealed a rapid decline in the concentration of spiked U such that it was almost undetectable in the supernatant by 72 h of incubation. Conversely, Ni concentrations remained unchanged, suggesting that the strain removed U but not Ni under the tested conditions. To obtain a deeper understanding of the metabolic potential, a draft genome sequence of strain SRS-W-1-2016 was obtained at a coverage of 90*, assembling into 93 contigs with an N50 contig length of 92,788 bases. The genomic size of strain SRS W-1-2016 was found to be 4,564,701 bases with a total number of 4327 putative genes. An in-depth, genome-wide comparison between strain SRS-W-1-2016 and its four closest taxonomic relatives revealed 1159 distinct genes, representing 26.7% of its total genome; many associating with metal resistance proteins (e.g., for cadmium, cobalt, and zinc), transporter proteins, stress proteins, cytochromes, and drug resistance functions. Additionally, several gene homologues coding for resistance to metals were identified in the strain, such as outer membrane efflux pump proteins, peptide/nickel transport substrate and ATP-binding proteins, a high-affinity nickel-transport protein, and the spoT gene, which was recently implicated in bacterial resistance towards U. Detailed genome mining analysis of strain SRS-W-1-2016 also revealed the presence of a plethora of secondary metabolite biosynthetic gene clusters likely facilitating resistance to antibiotics, biocides, and metals. Additionally, several gene homologous for the well-known oxygenase enzyme system were also identified, potentially functioning to generate energy via the breakdown of organic compounds and thus enabling the successful colonization and natural attenuation of contaminants by Arthrobacter sp. SRS-W-1-2016 at the SRS site. PMID- 29324692 TI - A Portable Dynamic Laser Speckle System for Sensing Long-Term Changes Caused by Treatments in Painting Conservation. AB - Dynamic laser speckle (DLS) is used as a reliable sensor of activity for all types of materials. Traditional applications are based on high-rate captures (usually greater than 10 frames-per-second, fps). Even for drying processes in conservation treatments, where there is a high level of activity in the first moments after the application and slower activity after some minutes or hours, the process is based on the acquisition of images at a time rate that is the same in moments of high and low activity. In this work, we present an alternative approach to track the drying process of protective layers and other painting conservation processes that take a long time to reduce their levels of activity. We illuminate, using three different wavelength lasers, a temporary protector (cyclododecane) and a varnish, and monitor them using a low fps rate during long term drying. The results are compared to the traditional method. This work also presents a monitoring method that uses portable equipment. The results present the feasibility of using the portable device and show the improved sensitivity of the dynamic laser speckle when sensing the long-term process for drying cyclododecane and varnish in conservation. PMID- 29324694 TI - Influence of Nb on the Microstructure and Fracture Toughness of (Zr0.76Fe0.24)100 xNbx Nano-Eutectic Composites. AB - The present study demonstrates the evolution of eutectic microstructure in arc melted (Zr0.76Fe0.24)100-xNbx (0 <= x <= 10 atom %) composites containing alpha Zr//FeZr2 nano-lamellae phases along with pro-eutectic Zr-rich intermetallic phase. The effects of Nb addition on the microstructural evolution and mechanical properties under compression, bulk hardness, elastic modulus, and indentation fracture toughness (IFT) were investigated. The Zr-Fe-(Nb) eutectic composites (ECs) exhibited excellent fracture strength up to ~1800 MPa. Microstructural characterization revealed that the addition of Nb promotes the formation of intermetallic Zr54Fe37Nb9. The IFT (KIC) increases from 3.0 +/- 0.5 MPa?m (x = 0) to 4.7 +/- 1.0 MPa?m (x = 2) at 49 N, which even further increases from 5.1 +/- 0.5 MPa?m (x = 0) and up to 5.9 +/- 1.0 MPa?m (x = 2) at higher loads. The results suggest that mutual interaction between nano-lamellar alpha-Zr//FeZr2 phases is responsible for enhanced fracture resistance and high fracture strength. PMID- 29324693 TI - Inhibiting the Physiological Stress Effects of a Sustained Attention Task on Shoulder Muscle Activity. AB - OBJECTIVE: The objective of this study was to investigate if a breathing technique could counteract the effects of hyperventilation due to a sustained attention task on shoulder muscle activity. BACKGROUND: The trend towards higher levels of automation in industry is increasing. Consequently, manufacturing operators often monitor automated process for long periods of their work shift. Prolonged monitoring work requires sustained attention, which is a cognitive process that humans are typically poor at and find stressful. As sustained attention becomes an increasing requirement of manufacturing operators' job content, the resulting stress experienced could contribute to the onset of many health problems, including work related musculoskeletal disorders (WRMSDs). METHODS: The SART attention test was completed by a group of participants before and after a breathing intervention exercise. The effects of the abdominal breathing intervention on breathing rate, upper trapezius muscle activity and end tidal CO2 were evaluated. RESULTS: The breathing intervention reduced the moderation effect of end-tidal CO2 on upper trapezius muscle activity. CONCLUSIONS: Abdominal breathing could be a useful technique in reducing the effects of sustained attention work on muscular activity. APPLICATION: This research can be applied to highly-automated manufacturing industries, where prolonged monitoring of work is widespread and could, in its role as a stressor, be a potential contributor to WRMSDs. PMID- 29324696 TI - Quantitative Assessment of Antimicrobial Activity of PLGA Films Loaded with 4 Hexylresorcinol. AB - Profound screening and evaluation methods for biocide-releasing polymer films are crucial for predicting applicability and therapeutic outcome of these drug delivery systems. For this purpose, we developed an agar overlay assay embedding biopolymer composite films in a seeded microbial lawn. By combining this approach with model-dependent analysis for agar diffusion, antimicrobial potency of the entrapped drug can be calculated in terms of minimum inhibitory concentrations (MICs). Thus, the topical antiseptic 4-hexylresorcinol (4-HR) was incorporated into poly(lactic-co-glycolic acid) (PLGA) films at different loadings up to 3.7 mg/cm2 surface area through a solvent casting technique. The antimicrobial activity of 4-HR released from these composite films was assessed against a panel of Gram-negative and Gram-positive bacteria, yeasts and filamentous fungi by the proposed assay. All the microbial strains tested were susceptible to PLGA-4-HR films with MIC values down to 0.4% (w/w). The presented approach serves as a reliable method in screening and quantifying the antimicrobial activity of polymer composite films. Moreover, 4-HR-loaded PLGA films are a promising biomaterial that may find future application in the biomedical and packaging sector. PMID- 29324695 TI - Investigation into Improving the Aqueous Solubility of the Thieno[2,3-b]pyridine Anti-Proliferative Agents. AB - It is now established that the thieno[2,3-b]pyridines are a potent class of antiproliferatives. One of the main issues encountered for their clinical application is their low water solubility. In order to improve this, two strategies were pursued. First, a morpholine moiety was tethered to the molecular scaffold by substituting the sulphur atom with nitrogen, resulting in a 1H pyrrolo[2,3-b]pyridine core structure. The water solubility was increased by three orders of magnitude, from 1.2 ug/mL (1-thieno[2,3-b]pyridine) to 1.3 mg/mL (3-pyrrolo[2,3-b]pyridine), however, it was only marginally active against cancer cells. The second strategy involved loading a very potent thieno[2,3-b]pyridine derivative (2) into a cholesteryl-poly(allylamine) polymer matrix for water solubilisation. Suppression of human pancreatic adenocarcinoma (BxPC-3) viability was observed to an IC50 value of 0.5 MUg/mL (1.30 MUM) in conjunction with the polymer, which is a five-fold (*5) increase in potency as compared to the free drug alone, demonstrating the utility of this formulation approach. PMID- 29324698 TI - An Improved Coarse Alignment Algorithm for Odometer-Aided SINS Based on the Optimization Design Method. AB - An improved coarse alignment (ICA) algorithm is proposed in this paper with a focus on improving alignment accuracy of odometer-aided strapdown inertial navigation system (SINS) under variable velocity and variable acceleration condition. In the proposed algorithm, the outputs of inertial sensors and odometer in a sampling interval are linearized rather than assumed to be a constant, which improves the accuracy of the vector observations and the precision of coarse alignment. Simulation and field test results illustrate that, under variable velocity and variable acceleration condition, the proposed algorithm can obtain a better alignment performance than conventional coarse alignment method. PMID- 29324697 TI - Association between Fetal Adipokines and Child Behavioral Problems at Preschool Age: The Hokkaido Study on Environment and Children's Health. AB - Studies have suggested associations between maternal obesity and mental health problems of their children. However, the underlying mechanism is largely unknown. A possible mechanism can be via inflammatory states and the other possible mechanism is metabolic hormone-induced programming. Cross-talk between adipokines, including inflammatory cytokines and metabolic hormones secreted from adipose tissue and the central nervous system needs to be further investigated to elucidate the mechanism. Thus, the aim of this study was to investigate the association between fetal adipokine levels and child behavioral problems at preschool age. Cord blood adiponectin, leptin, tumor necrosis factor-alpha (TNF alpha) and interleukin 6 (IL-6) levels were measured and child behavioral problems were assessed using the Strengths and Difficulties Questionnaire at preschool age. Logistic regression models adjusted by related maternal factors were performed to examine the association between cord blood adipokines and child behavioral problems. Three hundred and sixty-one children were included in the final analysis. A significant association between decreased hyperactivity/inattention and increased leptin was found (OR = 0.22, 95% CI: 0.06 0.89). Cord blood adiponectin, TNF-alpha and IL-6 levels were not associated with child behavioral problems. Our findings suggested that cord blood adipokines, particularly, leptin level, may be a predictor of hyperactivity/inattention problems at preschool age. PMID- 29324699 TI - LED-CT Scan for pH Distribution on a Cross-Section of Cell Culture Medium. AB - In cell culture, the pH of the culture medium is one of the most important conditions. However, the culture medium may have non-uniform pH distribution due to activities of cells and changes in the environment. Although it is possible to measure the pH distribution with an existing pH meter using distributed electrodes, the method involves direct contact with the medium and would greatly increase the risk of contamination. Here in this paper, we propose a computed tomography (CT) scan for measuring pH distribution using the color change of phenol red with a light-emitting diode (LED) light source. Using the principle of CT scan, we can measure pH distribution without contacting culture medium, and thus, decrease the risk of contamination. We have developed the device with a LED, an array of photo receivers and a rotation mechanism. The system is firstly calibrated with different shapes of wooden objects that do not pass light, we succeeded in obtaining their 3D topographies. The system was also used for measuring a culture medium with two different pH values, it was possible to obtain a pH distribution that clearly shows the boundary. PMID- 29324700 TI - Predicting Lameness in Sheep Activity Using Tri-Axial Acceleration Signals. AB - Lameness is a clinical symptom associated with a number of sheep diseases around the world, having adverse effects on weight gain, fertility, and lamb birth weight, and increasing the risk of secondary diseases. Current methods to identify lame animals rely on labour intensive visual inspection. The aim of this current study was to determine the ability of a collar, leg, and ear attached tri axial accelerometer to discriminate between sound and lame gait movement in sheep. Data were separated into 10 s mutually exclusive behaviour epochs and subjected to Quadratic Discriminant Analysis (QDA). Initial analysis showed the high misclassification of lame grazing events with sound grazing and standing from all deployment modes. The final classification model, which included lame walking and all sound activity classes, yielded a prediction accuracy for lame locomotion of 82%, 35%, and 87% for the ear, collar, and leg deployments, respectively. Misclassification of sound walking with lame walking within the leg accelerometer dataset highlights the superiority of an ear mode of attachment for the classification of lame gait characteristics based on time series accelerometer data. PMID- 29324704 TI - Dissection of Myogenic Differentiation Signatures in Chickens by RNA-Seq Analysis. AB - A series of elaborately regulated and orchestrated changes in gene expression profiles leads to muscle growth and development. In this study, RNA sequencing was used to profile embryonic chicken myoblasts and fused myotube transcriptomes, long non-coding RNAs (lncRNAs), and messenger RNAs (mRNAs) at four stages of myoblast differentiation. Of a total of 2484 lncRNA transcripts, 2288 were long intergenic non-coding RNAs (lincRNAs) and 198 were antisense lncRNAs. Additionally, 1530 lncRNAs were neighboring 2041 protein-coding genes (<10 kb upstream and downstream) and functionally enriched in several pathways related to skeletal muscle development that have been extensively studied, indicating that these genes may be in cis-regulatory relationships. In addition, Pearson's correlation coefficients demonstrated that 990 lncRNAs and 7436 mRNAs were possibly in trans-regulatory relationships. These co-expressed mRNAs were enriched in various developmentally-related biological processes, such as myocyte proliferation and differentiation, myoblast differentiation, and myoblast fusion. The number of transcripts (906 lncRNAs and 4422 mRNAs) differentially expressed across various stages declined with the progression of differentiation. Then, 4422 differentially expressed genes were assigned to four clusters according to K means analysis. Genes in the K1 cluster likely play important roles in myoblast proliferation and those in the K4 cluster were likely associated with the initiation of myoblast differentiation, while genes in the K2 and K3 clusters were likely related to myoblast fusion. This study provides a catalog of chicken lncRNAs and mRNAs for further experimental investigations and facilitates a better understanding of skeletal muscle development. PMID- 29324702 TI - Listeria monocytogenes: The Impact of Cell Death on Infection and Immunity. AB - Listeria monocytogenes has evolved exquisite mechanisms for invading host cells and spreading from cell-to-cell to ensure maintenance of its intracellular lifecycle. As such, it is not surprising that loss of the intracellular replication niche through induction of host cell death has significant implications on the development of disease and the subsequent immune response. Although L. monocytogenes can activate multiple pathways of host cell death, including necrosis, apoptosis, and pyroptosis, like most intracellular pathogens L. monocytogenes has evolved a series of adaptations that minimize host cell death to promote its virulence. Understanding how L. monocytogenes modulates cell death during infection could lead to novel therapeutic approaches. In addition, as L. monocytogenes is currently being developed as a tumor immunotherapy platform, understanding how cell death pathways influence the priming and quality of cell-mediated immunity is critical. This review will focus on the mechanisms by which L. monocytogenes modulates cell death, as well as the implications of cell death on acute infection and the generation of adaptive immunity. PMID- 29324705 TI - Influence of Chitosan Treatment on Surrogate Serum Markers of Cholesterol Metabolism in Obese Subjects. AB - Chitosan treatment results in significantly lower serum low density lipoprotein (LDL) cholesterol concentrations. To assess the working mechanisms of chitosan, we measured serum surrogate markers of cholesterol absorption (campesterol, sitosterol, cholestanol), synthesis (lathosterol, lanosterol, desmosterol), and degradation to bile acids (7alpha-hydroxy-cholesterol, 27-hydroxy-cholesterol), corrected for cholesterol concentration (R_sterols). Over 12 weeks, 116 obese subjects (Body Mass Index, BMI 31.7, range 28.1-38.9 kg/m2) were studied under chitosan (n = 61) and placebo treatments (n = 55). The participants were briefly educated regarding improvement of nutrition quality and energy expenditure. Daily chitosan intake was 3200 mg. Serum LDL cholesterol concentration decreased significantly more (p = 0.0252) under chitosan (-8.67 +/- 18.18 mg/dL, 5.6%) than under placebo treatment (-1.00 +/- 24.22 mg/dL, 0.9%). This reduction was not associated with the expected greater decreases in markers of cholesterol absorption under chitosan treatment. Also, increases in markers of cholesterol synthesis and bile acid synthesis under chitosan treatment were not any greater than under placebo treatment. In conclusion, a significant selective reduction of serum LDL cholesterol under chitosan treatment is neither associated with a reduction of serum surrogate markers of cholesterol absorption, nor with increases of markers for cholesterol and bile acid synthesis. PMID- 29324707 TI - Evaluation of Controlled Release Urea on the Dynamics of Nitrate, Ammonium, and Its Nitrogen Release in Black Soils of Northeast China. AB - Controlled release urea (CRU) is considered to enhance crop yields while alleviating negative environmental problems caused by the hazardous gas emissions that are associated with high concentrations of ammonium (NH4+) and nitrate (NO3 ) in black soils. Short-term effects of sulfur-coated urea (SCU) and polyurethane coated urea (PCU), compared with conventional urea, on NO3- and NH4+ in black soils were studied through the buried bag experiment conducted in an artificial climate chamber. We also investigated nitrogen (N) release kinetics of CRU and correlations between the cumulative N release rate and concentrations of NO3- and NH4+. CRU can reduce concentrations of NO3- and NH4+, and PCU was more effective in maintaining lower soil NO3-/NH4+ ratios than SCU and U. Parabolic equation could describe the kinetics of NO3- and NH4+ treated with PCU. The Elovich equation could describe the kinetics of NO3- and NH4+ treated with SCU. The binary linear regression model was established to predict N release from PCU because of significant correlations between the cumulative N release rate and concentrations of NO3- and NH4+. These results provided a methodology and data support for characterizing and predicting the N release from PCU in black soils. PMID- 29324708 TI - Golay Complementary Waveforms in Reed-Muller Sequences for Radar Detection of Nonzero Doppler Targets. AB - Golay complementary waveforms can, in theory, yield radar returns of high range resolution with essentially zero sidelobes. In practice, when deployed conventionally, while high signal-to-noise ratios can be achieved for static target detection, significant range sidelobes are generated by target returns of nonzero Doppler causing unreliable detection. We consider signal processing techniques using Golay complementary waveforms to improve radar detection performance in scenarios involving multiple nonzero Doppler targets. A signal processing procedure based on an existing, so called, Binomial Design algorithm that alters the transmission order of Golay complementary waveforms and weights the returns is proposed in an attempt to achieve an enhanced illumination performance. The procedure applies one of three proposed waveform transmission ordering algorithms, followed by a pointwise nonlinear processor combining the outputs of the Binomial Design algorithm and one of the ordering algorithms. The computational complexity of the Binomial Design algorithm and the three ordering algorithms are compared, and a statistical analysis of the performance of the pointwise nonlinear processing is given. Estimation of the areas in the Delay Doppler map occupied by significant range sidelobes for given targets are also discussed. Numerical simulations for the comparison of the performances of the Binomial Design algorithm and the three ordering algorithms are presented for both fixed and randomized target locations. The simulation results demonstrate that the proposed signal processing procedure has a better detection performance in terms of lower sidelobes and higher Doppler resolution in the presence of multiple nonzero Doppler targets compared to existing methods. PMID- 29324709 TI - Perpendicular Magnetic Anisotropy in Heusler Alloy Films and Their Magnetoresistive Junctions. AB - For the sustainable development of spintronic devices, a half-metallic ferromagnetic film needs to be developed as a spin source with exhibiting 100% spin polarisation at its Fermi level at room temperature. One of the most promising candidates for such a film is a Heusler-alloy film, which has already been proven to achieve the half-metallicity in the bulk region of the film. The Heusler alloys have predominantly cubic crystalline structures with small magnetocrystalline anisotropy. In order to use these alloys in perpendicularly magnetised devices, which are advantageous over in-plane devices due to their scalability, lattice distortion is required by introducing atomic substitution and interfacial lattice mismatch. In this review, recent development in perpendicularly-magnetised Heusler-alloy films is overviewed and their magnetoresistive junctions are discussed. Especially, focus is given to binary Heusler alloys by replacing the second element in the ternary Heusler alloys with the third one, e.g., MnGa and MnGe, and to interfacially-induced anisotropy by attaching oxides and metals with different lattice constants to the Heusler alloys. These alloys can improve the performance of spintronic devices with higher recording capacity. PMID- 29324710 TI - The Intention to be Physically Active in Sedentary Obese Children: A Longitudinal Study. AB - Obese children are usually less active than their normal-weight counterparts, although the reasons for this remain unclear. The objective of the present study was to determine how a long-term program (3 years of intervention and 6 months of follow-up detraining) of physical exercise with or without a low calorie diet influenced sedentary obese children's intention to be physically active. The participants were 27 children, ages from 8 to 11 years, who formed two groups according to the program that they followed. One group followed an exercise program (three 90-min sessions per week), and the other this same exercise program together with a hypocaloric diet. The intention to be physically active was assessed via the Measurement of Intention to be Physically Active (MIFA) questionnaire. The subjects' scores at different times of the program (baseline, Year 3, and detraining) were compared using a repeated-measures ANOVA, and a post hoc Tukey's test was applied to confirm the differences. After both the intervention and detraining, both groups showed greater intention to be physically active. This suggests the suitability of long-term physical exercise to generate greater intention to be physically active and thus establish healthy life habits including increased levels of physical activity. PMID- 29324711 TI - The Investigation of the Waveguiding Properties of Silk Fibroin from the Visible to Near-Infrared Spectrum. AB - Silk fibroin protein has been reinvented as a new optical material for biophotonic applications because of its optical transparency, biocompatibility, and easy fabrication process. It is used in various silk-based optical devices, which makes it desirable to investigate the optical properties of silk from diverse perspectives. This paper presents our investigation of the optical properties of silk fibroin, extracted from Bombyx mori cocoons. We have measured transmission spectra from the visible to near-infrared region and investigated waveguiding properties by the prism-coupling technique for five wavelengths (473.0, 632.8, 964.0, 1311, and 1552 nm). From the measurements, we determined the values of refractive indices. The measurements also proved waveguiding properties for all of the wavelengths. Optical scattering losses were measured by the fiber probe technique at 632.8 nm and were estimated to be 0.22 dB.cm-1. PMID- 29324712 TI - Positron Spectroscopy of Nanodiamonds after Hydrogen Sorption. AB - The structure and defects of nanodiamonds influence the hydrogen sorption capacity. Positronium can be used as a sensor for detecting places with the most efficient capture of hydrogen atoms. Hydrogenation of carbon materials was performed from gas atmosphere. The concentration of hydrogen absorbed by the sample depends on the temperature and pressure. The concentration 1.2 wt % is achieved at the temperature of 243 K and the pressure of 0.6 MPa. The hydrogen saturation of nanodiamonds changes the positron lifetime. Increase of sorption cycle numbers effects the positron lifetime, as well as the parameters of the Doppler broadening of annihilation line. The electron-positron annihilation being a sensitive method, it allows detecting the electron density fluctuation of the carbon material after hydrogen saturation. PMID- 29324713 TI - Asymmetric Conjugate Addition of alpha,alpha-Disubstituted Aldehydes to Nitroalkenes Organocatalyzed by Chiral Monosalicylamides from trans-Cyclohexane 1,2-Diamines. AB - Primary amine-salicylamides derived from chiral trans-cyclohexane-1,2-diamines are used as organocatalysts for the enantioselective conjugate addition of alpha,alpha-disubstituted aldehydes to arylated and heteroarylated nitroalkenes. The reaction is performed in the presence of 4-dimethylaminopyridine as an additive in dichloromethane as a solvent at room temperature. The corresponding enantioenriched gamma-nitroaldehydes are obtained with enantioselectivities up to 95%. Theoretical calculations are used to justify the reasons of the stereoinduction. PMID- 29324714 TI - Determination of Branched-Chain Keto Acids in Serum and Muscles Using High Performance Liquid Chromatography-Quadrupole Time-of-Flight Mass Spectrometry. AB - Branched-chain keto acids (BCKAs) are derivatives from the first step in the metabolism of branched-chain amino acids (BCAAs) and can provide important information on animal health and disease. Here, a simple, reliable and effective method was developed for the determination of three BCKAs (alpha-ketoisocaproate, alpha-keto-beta-methylvalerate and alpha-ketoisovalerate) in serum and muscle samples using high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF/MS). The samples were extracted using methanol and separated on a 1.8 MUm Eclipse Plus C18 column within 10 min. The mobile phase was 10 mmol L-1 ammonium acetate aqueous solution and acetonitrile. The results showed that recoveries for the three BCKAs ranged from 78.4% to 114.3% with relative standard deviation (RSD) less than 9.7%. The limit of quantitation (LOQ) were 0.06~0.23 MUmol L-1 and 0.09~0.27 nmol g-1 for serum and muscle samples, respectively. The proposed method can be applied to the determination of three BCKAs in animal serum and muscle samples. PMID- 29324706 TI - Endothelial Ca2+ Signaling and the Resistance to Anticancer Treatments: Partners in Crime. AB - Intracellular Ca2+ signaling drives angiogenesis and vasculogenesis by stimulating proliferation, migration, and tube formation in both vascular endothelial cells and endothelial colony forming cells (ECFCs), which represent the only endothelial precursor truly belonging to the endothelial phenotype. In addition, local Ca2+ signals at the endoplasmic reticulum (ER)-mitochondria interface regulate endothelial cell fate by stimulating survival or apoptosis depending on the extent of the mitochondrial Ca2+ increase. The present article aims at describing how remodeling of the endothelial Ca2+ toolkit contributes to establish intrinsic or acquired resistance to standard anti-cancer therapies. The endothelial Ca2+ toolkit undergoes a major alteration in tumor endothelial cells and tumor-associated ECFCs. These include changes in TRPV4 expression and increase in the expression of P2X7 receptors, Piezo2, Stim1, Orai1, TRPC1, TRPC5, Connexin 40 and dysregulation of the ER Ca2+ handling machinery. Additionally, remodeling of the endothelial Ca2+ toolkit could involve nicotinic acetylcholine receptors, gasotransmitters-gated channels, two-pore channels and Na+/H+ exchanger. Targeting the endothelial Ca2+ toolkit could represent an alternative adjuvant therapy to circumvent patients' resistance to current anti-cancer treatments. PMID- 29324715 TI - Nitrogen-Doped Diamond Film for Optical Investigation of Hemoglobin Concentration. AB - In this work we present the fabrication and characterization of a diamond film which can be utilized in the construction of optical sensors for the investigation of biological samples. We produced a nitrogen-doped diamond (NDD) film using a microwave plasma enhanced chemical vapor deposition (MWPECVD) system. The NDD film was investigated with the use of scanning electron microscopy (SEM), atomic force microscopy (AFM) and Raman spectroscopy. The NDD film was used in the construction of the fiber optic sensor. This sensor is based on the Fabry-Perot interferometer working in a reflective mode and the NDD film is utilized as a reflective layer of this interferometer. Application of the NDD film allowed us to obtain the sensor of hemoglobin concentration with linear work characteristics with a correlation coefficient (R2) equal to 0.988. PMID- 29324716 TI - The Effects of a Macromolecular Charring Agent with Gas Phase and Condense Phase Synergistic Flame Retardant Capability on the Properties of PP/IFR Composites. AB - In order to improve the efficiency of intumescent flame retardants (IFRs), a novel macromolecular charring agent named poly(ethanediamine-1,3,5-triazine-p-4 amino-2,2,6,6-tetramethylpiperidine) (PETAT) with gas phase and condense phase synergistic flame-retardant capability was synthesized and subsequently dispersed into polypropylene (PP) in combination with ammonium polyphosphate (APP) via a melt blending method. The chemical structure of PETAT was investigated by Fourier transform infrared spectroscopy (FTIR), and 1H nuclear magnetic resonance (NMR) spectroscopy. Thermal properties of the PETAT and IFR systems were tested by thermogravimetric-derivative thermogravimetric analysis (TGA-DTG) and thermogravimetry-Fourier transform infrared spectroscopy (TG-FTIR). The mechanical properties, thermal stability, flame-retardant properties, water resistance, and structures of char residue in flame-retardant composites were characterized using tensile and flexural strength property tests, TGA, limiting oxygen index (LOI) values before and after soaking, underwritten laboratory-94 (UL-94) vertical burning test, cone calorimetric test (CCT), scanning electron microscopy with energy dispersive X-ray spectrometry (SEM-EDXS), and FTIR. The results indicated that PETAT was successfully synthesized, and when the ratio of APP to PETAT was 2:1 with 25 wt % loading, the novel IFR system could reduce the deterioration of tensile strength and enhance the flexural strength of composites. Meanwhile, the flame-retardant composite was able to pass the UL-94 V 0 rating with an LOI value of 30.3%, and the peak of heat release rate (PHRR), total heat release (THR), and material fire hazard values were considerably decreased compared with others. In addition, composites also exhibited excellent water resistance properties compared with traditional IFR composites. SEM-EDXS and FTIR analyses of the char residues, as well as TG-FTIR analyses of IFR were used to investigate the flame-retardant mechanism of the APP/PETAT IFR system. The results indicated that the efficient flame retardancy of PP/IFR composites could be attributed to the synergism of the free radical-quenching and char layer protecting mechanisms in the gas phase and condense phase, respectively. PMID- 29324717 TI - Residual Inequity: Assessing the Unintended Consequences of New York City's Clean Heat Transition. AB - Energy policies and public health are intimately intertwined. In New York City, a series of policies, known as the Clean Heat Program (CHP), were designed to reduce air pollution by banning residual diesel fuel oils, #6 in 2015 and #4 by 2030. This measure is expected to yield environmental and public health benefits over time. While there is near-universal compliance with the #6 ban, a substantial number of buildings still use #4. In this paper, geographic analysis and qualitative interviews with stakeholders were used to interrogate the CHP's policy implementation in Northern Manhattan and the Bronx. A total of 1724 (53%) of all residential residual fuel burning buildings are located in this region. Stakeholders reflected mostly on the need for the program, and overall reactions to its execution. Major findings include that government partnerships with non governmental organizations were effectively employed. However, weaknesses with the policy were also identified, including missed opportunities for more rapid transitions away from residual fuels, unsuccessful outreach efforts, cost prohibitive conversion opportunities, and (the perception of) a volatile energy market for clean fuels. Ultimately, this analysis serves as a case study of a unique and innovative urban policy initiative to improve air quality and, consequently, public health. PMID- 29324719 TI - An Enhanced Secure Identity-Based Certificateless Public Key Authentication Scheme for Vehicular Sensor Networks. AB - Vehicular sensor networks have been widely applied in intelligent traffic systems in recent years. Because of the specificity of vehicular sensor networks, they require an enhanced, secure and efficient authentication scheme. Existing authentication protocols are vulnerable to some problems, such as a high computational overhead with certificate distribution and revocation, strong reliance on tamper-proof devices, limited scalability when building many secure channels, and an inability to detect hardware tampering attacks. In this paper, an improved authentication scheme using certificateless public key cryptography is proposed to address these problems. A security analysis of our scheme shows that our protocol provides an enhanced secure anonymous authentication, which is resilient against major security threats. Furthermore, the proposed scheme reduces the incidence of node compromise and replication attacks. The scheme also provides a malicious-node detection and warning mechanism, which can quickly identify compromised static nodes and immediately alert the administrative department. With performance evaluations, the scheme can obtain better trade-offs between security and efficiency than the well-known available schemes. PMID- 29324718 TI - Screening of E. coli beta-clamp Inhibitors Revealed that Few Inhibit Helicobacter pylori More Effectively: Structural and Functional Characterization. AB - The characteristic of interaction with various enzymes and processivity-promoting nature during DNA replication makes beta-clamp an important drug target. Helicobacter pylori (H. pylori) have several unique features in DNA replication machinery that makes it different from other microorganisms. To find out whether difference in DNA replication proteins behavior accounts for any difference in drug response when compared to E. coli, in the present study, we have tested E. coli beta-clamp inhibitor molecules against H. pylori beta-clamp. Various approaches were used to test the binding of inhibitors to H. pylori beta-clamp including docking, surface competition assay, complex structure determination, as well as antimicrobial assay. Out of five shortlisted inhibitor molecules on the basis of docking score, three molecules, 5-chloroisatin, carprofen, and 3,4 difluorobenzamide were co-crystallized with H. pylori beta-clamp and the structures show that they bind at the protein-protein interaction site as expected. In vivo studies showed only two molecules, 5-chloroisatin, and 3,4 difluorobenzamide inhibited the growth of the pylori with MIC values in micro molar range, which is better than the inhibitory effect of the same drugs on E. coli. Therefore, the evaluation of such drugs against H. pylori may explore the possibility to use to generate species-specific pharmacophore for development of new drugs against H. pylori. PMID- 29324721 TI - Electromagnetic Acoustic Transducers for Robotic Nondestructive Inspection in Harsh Environments. AB - Elevated temperature, gamma radiation, and geometric constraints inside dry storage casks for spent nuclear fuel represent a harsh environment for nondestructive inspection of the cask and require that the inspection be conducted with a robotic system. Electromagnetic acoustic transducers (EMATs) using non-contact ultrasonic transduction based on the Lorentz force to excite/receive ultrasonic waves are suited for use in the robotic inspection. Periodic permanent magnet EMATs that actuate/receive shear horizontal guided waves are developed for application to robotic nondestructive inspection of stress corrosion cracks in the heat affected zone of welds in stainless steel dry storage canisters. The EMAT's components are carefully selected in consideration of the inspection environment, and tested under elevated temperature and gamma radiation doses up to 177 degrees C and 5920 krad, respectively, to evaluate the performance of the EMATs under realistic environmental conditions. The effect of gamma radiation is minimal, but the EMAT's performance is affected by temperatures above 121 degrees C due to the low Curie temperature of the magnets. Different magnets are needed to operate at 177 degrees C. The EMAT's capability to detect notches is also evaluated from B-scan measurements on 304 stainless steel welded plate containing surface-breaking notches. PMID- 29324720 TI - Biointeractions of Herbicide Atrazine with Human Serum Albumin: UV-Vis, Fluorescence and Circular Dichroism Approaches. AB - The herbicide atrazine is widely used across the globe, which is a great concern. To investigate its potential toxicity in the human body, human serum albumin (HSA) was selected as a model protein. The interaction between atrazine and HSA was investigated using steady-state fluorescence spectroscopy, synchronous fluorescence spectroscopy, UV-Vis spectroscopy, three-dimensional (3D) fluorescence spectroscopy and circular dichroism (CD) spectroscopy. The intrinsic fluorescence of HSA was quenched by the atrazine through a static quenching mechanism. Fluorescence spectra at two excitation wavelengths (280 and 295 nm) showed that the fluorescence quenched in HSA was mainly contributed to by tryptophan residues. In addition, the atrazine bound to HSA, which induced changes in the conformation and secondary structure of HSA and caused an energy transfer. Thermodynamic parameters revealed that this binding is spontaneous. Moreover, electrostatic interactions play a major role in the combination of atrazine and HSA. One atrazine molecule can only bind to one HSA molecule to form a complex, and the atrazine molecule is bound at site II (subdomain IIIA) of HSA. This study furthers the understanding of the potential effects posed by atrazine on humans at the molecular level. PMID- 29324723 TI - Error Recovery in the Time-Triggered Paradigm with FTT-CAN. AB - Data networks are naturally prone to interferences that can corrupt messages, leading to performance degradation or even to critical failure of the corresponding distributed system. To improve resilience of critical systems, time triggered networks are frequently used, based on communication schedules defined at design-time. These networks offer prompt error detection, but slow error recovery that can only be compensated with bandwidth overprovisioning. On the contrary, the Flexible Time-Triggered (FTT) paradigm uses online traffic scheduling, which enables a compromise between error detection and recovery that can achieve timely recovery with a fraction of the needed bandwidth. This article presents a new method to recover transmission errors in a time-triggered Controller Area Network (CAN) network, based on the Flexible Time-Triggered paradigm, namely FTT-CAN. The method is based on using a server (traffic shaper) to regulate the retransmission of corrupted or omitted messages. We show how to design the server to simultaneously: (1) meet a predefined reliability goal, when considering worst case error recovery scenarios bounded probabilistically by a Poisson process that models the fault arrival rate; and, (2) limit the direct and indirect interference in the message set, preserving overall system schedulability. Extensive simulations with multiple scenarios, based on practical and randomly generated systems, show a reduction of two orders of magnitude in the average bandwidth taken by the proposed error recovery mechanism, when compared with traditional approaches available in the literature based on adding extra pre-defined transmission slots. PMID- 29324722 TI - Evaluation of a New Survivin ELISA and UBC(r) Rapid for the Detection of Bladder Cancer in Urine. AB - Urine-based biomarkers for non-invasive diagnosis of bladder cancer are urgently needed. No single marker with sufficient sensitivity and specificity has been described so far. Thus, a combination of markers appears to be a promising approach. The aim of this case-control study was to evaluate the performance of an in-house developed enzyme-linked immunosorbent assay (ELISA) for survivin, the UBC(r)Rapid test, and the combination of both assays. A total of 290 patients were recruited. Due to prior bladder cancer, 46 patients were excluded. Urine samples were available from 111 patients with bladder cancer and 133 clinical controls without urologic diseases. Antibodies generated from recombinant survivin were utilized to develop a sandwich ELISA. The ELISA and the UBC(r)Rapid test were applied to all urine samples. Receiver operating characteristic (ROC) analysis was used to evaluate marker performance. The survivin ELISA exhibited a sensitivity of 35% with a specificity of 98%. The UBC(r)Rapid test showed a sensitivity of 56% and a specificity of 96%. Combination of both assays increased the sensitivity to 66% with a specificity of 95%. For high-grade tumors, the combination showed a sensitivity of 82% and a specificity of 95%. The new survivin ELISA and the UBC(r)Rapid test are both able to detect bladder cancer, especially high-grade tumors. However, the performance of each individual marker is moderate and efforts to improve the survivin assay should be pursued. A combination of both assays confirmed the benefit of using marker panels. The results need further testing in a prospective study and with a high-risk population. PMID- 29324725 TI - West Nile Virus and Other Nationally Notifiable Arboviral Diseases - United States, 2016. AB - Arthropod-borne viruses (arboviruses) are transmitted to humans primarily through the bites of infected mosquitoes and ticks. West Nile virus (WNV) is the leading cause of domestically acquired arboviral disease in the continental United States (1,2). Other arboviruses, including La Crosse, Powassan, Jamestown Canyon, St. Louis encephalitis, and eastern equine encephalitis viruses, cause sporadic cases of disease and occasional outbreaks. This report summarizes surveillance data reported to CDC for 2016 for nationally notifiable arboviruses. It excludes dengue, chikungunya, and Zika viruses, as these are primarily nondomestic viruses typically acquired through travel. Forty-seven states and the District of Columbia (DC) reported 2,240 cases of domestic arboviral disease, including 2,150 (96%) WNV disease cases. Of the WNV disease cases, 1,310 (61%) were classified as neuroinvasive disease (e.g., meningitis, encephalitis, acute flaccid paralysis), for a national incidence of 0.41 cases per 100,000 population. After WNV, the most frequently reported arboviruses were La Crosse (35 cases), Powassan (22), and Jamestown Canyon (15) viruses. Because arboviral diseases continue to cause serious illness, maintaining surveillance is important to direct prevention activities. PMID- 29324724 TI - Evaluation of Oxidative Stress Levels and Antioxidant Enzyme Activities in Burst Fractures. AB - BACKGROUND Spinal burst fractures are pathologies that occur in spinal injuries and cause significant mortality and morbidity as a result. Burst fractures in spinal cord injuries can result in rapid and significant oxidative stress. In addition to the primary injury in severe spinal cord injuries, subsequent secondary lesions are mainly due to inflammatory cascade activation and excessive production of free radicals. This study evaluated oxidative stress and antioxidant enzyme levels in burst fractures. MATERIAL AND METHODS Twenty patients with burst fractures were diagnosed and underwent surgery and 20 healthy control subjects were included in the study. Neurological status was evaluated using the American Spine Injury Association Impairment Scale (ASIA) before and after surgery. Neurological function was scored as ASIA A: complete deficits, ASIA B-D: incomplete deficits, and ASIA E: neurologically intact. Spectrophotometry was performed to measure malondialdehyde (MDA) and low glutathione (GSH), glutathione peroxidase (GPx) levels, which represent lipid peroxide content. Evaluations were performed within 2 days after injury in the patients. RESULTS MDA levels were higher in the burst fracture group (p<0.001), whereas GSH and SOD activities were higher in the control group (both p<0.001). There was no statistically significant difference in GPx levels between the groups (p=0.482). CONCLUSIONS Oxidative stress appears to be related to burst fractures. Considering the importance of burst fractures in spinal cord injuries, a better understanding of these mechanisms may help in defining the role of oxidative stress after burst fractures. Prospective, randomized, controlled trials may reveal new therapeutic approaches that include antioxidants for explosive fractures focusing on oxidative stress. PMID- 29324726 TI - HIV Infection and HIV-Associated Behaviors Among Persons Who Inject Drugs - 20 Cities, United States, 2015. AB - In the United States, 9% of human immunodeficiency virus (HIV) infections diagnosed in 2015 were attributed to injection drug use (1). In 2015, 79% of diagnoses of HIV infection among persons who inject drugs occurred in urban areas (2). To monitor the prevalence of HIV infection and associated behaviors among persons who inject drugs, CDC's National HIV Behavioral Surveillance (NHBS) conducts interviews and HIV testing in selected metropolitan statistical areas (MSAs) (3). The prevalence of HIV infection among persons who inject drugs in 20 MSAs in 2015 was 7%. In a behavioral analysis of HIV-negative persons who inject drugs, an estimated 27% receptively shared syringes and 67% had condomless vaginal sex in the previous 12 months. During the same period, 58% had tested for HIV infection and 52% received syringes from a syringe services program. Given the increased number of persons newly injecting drugs who are at risk for HIV infection because of the recent opioid epidemic (2,4), these findings underscore the importance of continuing and expanding health services, HIV prevention programs, and community-based strategies, such as those provided by syringe services programs, for this population. PMID- 29324727 TI - Frequent Exertion and Frequent Standing at Work, by Industry and Occupation Group - United States, 2015. AB - Repeated exposure to occupational ergonomic hazards, such as frequent exertion (repetitive bending or twisting) and frequent standing, can lead to injuries, most commonly musculoskeletal disorders (1). Work-related musculoskeletal disorders have been estimated to cost the United States approximately $2.6 billion in annual direct and indirect costs (2). A recent literature review provided evidence that prolonged standing at work also leads to adverse health outcomes, such as back pain, physical fatigue, and muscle pain (3). To determine which industry and occupation groups currently have the highest prevalence rates of frequent exertion at work and frequent standing at work, CDC analyzed data from the 2015 National Health Interview Survey (NHIS) Occupational Health Supplement (OHS) regarding currently employed adults in the United States. By industry, the highest prevalence of both frequent exertion and frequent standing at work was among those in the agriculture, forestry, fishing, and hunting industry group (70.9%); by occupation, the highest prevalence was among those in the construction and extraction occupation group (76.9%). Large differences among industry and occupation groups were found with regard to these ergonomic hazards, suggesting a need for targeted interventions designed to reduce workplace exposure. PMID- 29324728 TI - Recommendation of the Advisory Committee on Immunization Practices for Use of a Third Dose of Mumps Virus-Containing Vaccine in Persons at Increased Risk for Mumps During an Outbreak. AB - A substantial increase in the number of mumps outbreaks and outbreak-associated cases has occurred in the United States since late 2015 (1,2). To address this public health problem, the Advisory Committee on Immunization Practices (ACIP) reviewed the available evidence and determined that a third dose of measles, mumps, rubella (MMR) vaccine is safe and effective at preventing mumps. During its October 2017 meeting, ACIP recommended a third dose of a mumps virus containing vaccine* for persons previously vaccinated with 2 doses who are identified by public health authorities as being part of a group or population at increased risk for acquiring mumps because of an outbreak. The purpose of the recommendation is to improve protection of persons in outbreak settings against mumps disease and mumps-related complications. This recommendation supplements the existing ACIP recommendations for mumps vaccination (3). PMID- 29324729 TI - Vital Signs: Trends and Disparities in Infant Safe Sleep Practices - United States, 2009-2015. AB - INTRODUCTION: There have been dramatic improvements in reducing infant sleep related deaths since the 1990s, when recommendations were introduced to place infants on their backs for sleep. However, there are still approximately 3,500 sleep-related deaths among infants each year in the United States, including those from sudden infant death syndrome, accidental suffocation and strangulation in bed, and unknown causes. Unsafe sleep practices, including placing infants in a nonsupine (on side or on stomach) sleep position, bed sharing, and using soft bedding in the sleep environment (e.g., blankets, pillows, and soft objects) are modifiable risk factors for sleep-related infant deaths. PMID- 29324730 TI - QuickStats: Age-Adjusted Percentages* of Current Smokers? Among Adults Aged >=18 Years, by Sex, Race, and Hispanic OriginS - National Health Interview Survey, 2016 . AB - In 2016, men aged >=18 years were more likely to be current smokers than women (17.5% compared with 13.6%). Non-Hispanic black men (20.1%) and non-Hispanic white men (18.4%) were more likely to be current smokers than Hispanic men (13.8%). Non-Hispanic white women (16.2%) were more likely to be current smokers than non-Hispanic black women (13.2%) and Hispanic women (6.9%). PMID- 29324731 TI - Notice to Readers: Online Manuscript Submission System Now Available for MMWR Serial Publications. AB - The MMWR Serial Publications are now using ScholarOne Manuscripts, an online system for manuscript submissions. This system provides comprehensive workflow management and streamlines the submission process for Recommendations and Reports, Surveillance Summaries, and Supplements. PMID- 29324732 TI - Tobacco Product Use Among Military Veterans - United States, 2010-2015. AB - In 2015, an estimated 18.8 million U.S. adults were military veterans (1). Although the prevalence of tobacco-attributable conditions is high among veterans (2), there is a paucity of data on use of tobacco products, other than cigarettes, in this population. To monitor tobacco product use among veterans, CDC analyzed self-reported current (i.e., past 30-day) use of five tobacco product types (cigarettes, cigars [big cigars, cigarillos, or little cigars], roll-your-own tobacco, pipes, and smokeless tobacco [chewing tobacco, snuff, dip, or snus]) from the National Survey on Drug Use and Health (NSDUH). Overall, 29.2% of veterans reported current use of any of the assessed tobacco products. Cigarettes were the most commonly used tobacco product (21.6%), followed by cigars (6.2%), smokeless tobacco (5.2%), roll-your-own tobacco (3.0%), and pipes (1.5%); 7.0% of veterans currently used two or more tobacco products. Within subgroups of veterans, current use of any of the assessed tobacco products was higher among persons aged 18-25 years (56.8%), Hispanics (34.0%), persons with less than a high school diploma (37.9%), those with annual family income <$20,000 (44.3%), living in poverty (53.7%), reporting serious psychological distress (48.2%), and with no health insurance (60.1%). By age and sex subgroups, use of any of the assessed tobacco products was significantly higher among all veteran groups than their nonveteran counterparts, except males aged >=50 years. Expanding the reach of evidence-based tobacco control interventions among veterans could reduce tobacco use prevalence in this population. PMID- 29324733 TI - Antibiotics Dispensed to Privately Insured Pregnant Women with Urinary Tract Infections - United States, 2014. AB - Urinary tract infections (UTIs) occur in about 8% of pregnant women, and untreated UTIs can have serious consequences, including pyelonephritis, preterm labor, low birth weight, and sepsis (1). Pregnant women are typically screened for UTIs during early pregnancy, and those with bacteriuria are treated with antibiotics (1,2). Antibiotic stewardship is critical to improving patient safety and to combating antibiotic resistance. Because of the potential risk for birth defects, including anencephaly, heart defects, and orofacial clefts, associated with use of sulfonamides and nitrofurantoin during pregnancy (3), a 2011 committee opinion from the American College of Obstetricians and Gynecologists (ACOG) recommended that sulfonamides and nitrofurantoin may be prescribed in the first trimester of pregnancy only when other antimicrobial therapies are deemed clinically inappropriate (4). To assess the effects of these recommendations, CDC analyzed the Truven Health MarketScan Commercial Database* to examine antibiotic prescriptions filled by pregnant women with UTIs. Among 482,917 pregnancies in 2014, 7.2% of women had an outpatient UTI diagnosis during the 90 days before the date of last menstrual period (LMP) or during pregnancy. Among pregnant women with UTIs, the most frequently prescribed antibiotics during the first trimester were nitrofurantoin, ciprofloxacin, cephalexin, and trimethoprim sulfamethoxazole. Given the potential risks associated with use of some of these antibiotics in early pregnancy and the potential for unrecognized pregnancy, women's health care providers should be familiar with the ACOG recommendations and consider the possibility of early pregnancy when treating women of reproductive age. PMID- 29324734 TI - Notice to Readers: New Web Location for Weekly and Annual NNDSS Data. AB - To improve the usability, availability, quality, and timeliness of surveillance data as part of the CDC Surveillance Strategy (1), CDC now provides users a convenient way to access notifiable infectious and noninfectious disease data through the National Notifiable Diseases Surveillance System (NNDSS) website. PMID- 29324736 TI - No additional prognostic value for MRE11 in squamous cell carcinomas of the anus treated with chemo-radiotherapy. AB - This corrects the article DOI: 10.1038/bjc.2017.188. PMID- 29324735 TI - Influence of c-Src on hypoxic resistance to paclitaxel in human ovarian cancer cells and reversal of FV-429. AB - SRC family kinase was documented to have vital roles in adjusting cancer cell malignant behaviors. To date, the role of c-Src, a member of SRC family kinase, in resistance to paclitaxel in human ovarian cancer cells under hypoxia has not been investigated. In the present study, we discovered that hypoxic environment suppressed paclitaxel-induced G2/M phase arrest and blockade of c-Src improved ovarian cancer cells' sensitivity to paclitaxel. FV-429, a derivative of natural flavonoid wogonin, could suppress gene expression and activation of c-Src, followed by deteriorated Stat3 nuclear translocation and its binding to HIF 1alpha, resulting in paclitaxel resistance reversal through G2/M arrest potentiation. Our study demonstrated that c-Src contributed to hypoxic microenvironment-rendered paclitaxel resistance in human epithelial ovarian cancer cells by G2/M phase arrest deterioration, and through c-Src suppression, FV-429 was capable of reversing the resistance by blocking c-Src/Stat3/HIF-1alpha pathway. PMID- 29324737 TI - Barriers of attendance to dog rabies static point vaccination clinics in Blantyre, Malawi. AB - Rabies is a devastating yet preventable disease that causes around 59,000 human deaths annually. Almost all human rabies cases are caused by bites from rabies infected dogs. A large proportion of these cases occur in Sub Saharan Africa (SSA). Annual vaccination of at least 70% of the dog population is recommended by the World Health Organisation in order to eliminate rabies. However, achieving such high vaccination coverage has proven challenging, especially in low resource settings. Despite being logistically and economically more feasible than door-to door approaches, static point (SP) vaccination campaigns often suffer from low attendance and therefore result in low vaccination coverage. Here, we investigated the barriers to attendance at SP offering free rabies vaccinations for dogs in Blantyre, Malawi. We analysed data for 22,924 dogs from a city-wide vaccination campaign in combination with GIS and household questionnaire data using multivariable logistic regression and distance estimation techniques. We found that distance plays a crucial role in SP attendance (i.e. for every km closer the odds of attending a SP point are 3.3 times higher) and that very few people are willing to travel more than 1.5 km to bring their dog for vaccination. Additionally, we found that dogs from areas with higher proportions of people living in poverty are more likely to be presented for vaccination (ORs 1.58 2.22). Furthermore, puppies (OR 0.26), pregnant or lactating female dogs (OR 0.60) are less likely to be presented for vaccination. Owners also reported that they did not attend an SP because they were not aware of the campaign (27%) or they could not handle their dog (19%). Our findings will inform the design of future rabies vaccination programmes in SSA which may lead to improved vaccination coverage achieved by SP alone. PMID- 29324738 TI - Population structure analysis of the neglected parasite Thelazia callipaeda revealed high genetic diversity in Eastern Asia isolates. AB - BACKGROUND: Thelazia callipaeda is the causative agent of thelaziasis in canids, felids and humans. However, the population genetic structure regarding this parasite remains unclear. METHODOLOGY/PRINCIPAL FINDINGS: In this study, we first explored the genetic variation of 32 T. callipaeda clinical isolates using the following multi-molecular markers: cox1, cytb, 12S rDNA, ITS1 and 18S rDNA. The isolates were collected from 13 patients from 11 geographical locations in China. Next, the population structure of T. callipaeda from Europe and other Asian countries was analyzed using the cox1 sequences collected during this study and from the GenBank database. In general, the Chinese clinical isolates of T. callipaeda expressed high genetic diversity. Based on the cox1 gene, a total of 21 haplotypes were identified. One only circulated in European countries (Hap1), while the other 20 haplotypes were dispersed in Korea, Japan and China. There were five nucleotide positions in the cox1 sequences that were confirmed as invariable among individuals from Europe and Asia, but the sequences were distinct between these two regions. Population differences between Europe and Asian countries were greater than those among China, Korea and Japan. The T. callipaeda populations from Europe and Asia should be divided into two separate sub-populations. These two groups started to diverge during the middle Pleistocene. Neutrality tests, mismatch distribution and Bayesian skyline plot (BSP) analysis all rejected possible population expansion of T. callipaeda. CONCLUSIONS: The Asian population of T. callipaeda has a high level of genetic diversity, but further studies should be performed to explore the biology, ecology and epidemiology of T. callipaeda. PMID- 29324739 TI - Mansonella perstans microfilaremic individuals are characterized by enhanced type 2 helper T and regulatory T and B cell subsets and dampened systemic innate and adaptive immune responses. AB - The filarial nematode Mansonella perstans is endemic throughout Africa, northern South America and the Caribbean. Interestingly, M. perstans-infected individuals present no distinct clinical picture associated with certain pathology. Due to its relatively silent nature, research on this tropical disease has been neglected, especially M. perstans-driven immune responses. A hindrance in obtaining data on M. perstans-specific responses has been the inability to obtain adult worms since their habitats in serous cavities are difficult to access. Thus, in this study, for the first time, we used Mansonella perstans worm antigen extract as stimulant to obtain filarial-specific recall and immunoglobulin responses from M. perstans microfilaremic individuals (Mp MF+) from Cameroon. Moreover, systemic immune profiles in sera and immune cell composition in peripheral blood from Mp MF+ and amicrofilaremic individuals (Mp MF-) were obtained. Our data reveal that Mp MF+ individuals showed significantly reduced cytokine (IL-4, IL-6 and IL-12p70) and chemokine levels (IL-8 and RANTES), but significantly higher MIP-1beta as well as increased M. perstans-specific IgG4 levels compared to Mp MF- individuals. In contrast, upon re-stimulation with worm antigen extract, IFN-gamma, IL-13, IL-10 and IL-17A secretion was enhanced in cell cultures from Mp MF+ individuals when compared to those from cultures of healthy European individuals. Moreover, analysis of immune cell composition in peripheral blood from Mp MF+ individuals revealed increased type 2 helper T (Th2), natural killer (NK), regulatory B and T cell (Breg and Treg) subsets but decreased type 1 regulatory T (Tr1) cells. In summary, this study deciphers for the first time, M. perstans-specific immune responses using worm antigen extract and shows that patent M. perstans infections have distinct Th2, Breg and Treg subsets accompanied with reduced systemic innate and adaptive immune responses and dominant filarial-specific IgG4 levels. PMID- 29324740 TI - Dietary intake and diabetic retinopathy: A systematic review. AB - INTRODUCTION: The evidence linking dietary intake with diabetic retinopathy (DR) is growing but unclear. We conducted a systematic review of the association between dietary intake and DR. METHODS: We systematically searched PubMed, Embase, Medline, and the Cochrane Central register of controlled trials, for publications between January 1967 and January 2017 using standardized criteria for diet and DR. Interventional and observational studies investigating micro- and macro-nutrient intakes; food and beverage consumptions; and dietary patterns were included. Study quality was evaluated using a modified Newcastle-Ottawa scale for observational studies, and the Cochrane collaboration tool for interventional studies. RESULTS: Of 4265 titles initially identified, 31 studies (3 interventional, 28 Observational) were retained. Higher intakes of dietary fibre, oily fish, and greater adherence to a Mediterranean diet were protective of DR. Conversely, high total caloric intake was associated with higher risk of DR. No significant associations of carbohydrate, vitamin D, and sodium intake with DR were found. Associations of antioxidants, fatty acids, proteins and alcohol with DR remain equivocal. CONCLUSIONS: Dietary fibre, oily fish, a Mediterranean diet and a reduced caloric intake are associated with lower risk of DR. Longitudinal data and interventional models are warranted to confirm our findings and better inform clinical guidelines. PMID- 29324741 TI - Facilitating healthcare decisions by assessing the certainty in the evidence from preclinical animal studies. AB - Laboratory animal studies are used in a wide range of human health related research areas, such as basic biomedical research, drug research, experimental surgery and environmental health. The results of these studies can be used to inform decisions regarding clinical research in humans, for example the decision to proceed to clinical trials. If the research question relates to potential harms with no expectation of benefit (e.g., toxicology), studies in experimental animals may provide the only relevant or controlled data and directly inform clinical management decisions. Systematic reviews and meta-analyses are important tools to provide robust and informative evidence summaries of these animal studies. Rating how certain we are about the evidence could provide important information about the translational probability of findings in experimental animal studies to clinical practice and probably improve it. Evidence summaries and certainty in the evidence ratings could also be used (1) to support selection of interventions with best therapeutic potential to be tested in clinical trials, (2) to justify a regulatory decision limiting human exposure (to drug or toxin), or to (3) support decisions on the utility of further animal experiments. The Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach is the most widely used framework to rate the certainty in the evidence and strength of health care recommendations. Here we present how the GRADE approach could be used to rate the certainty in the evidence of preclinical animal studies in the context of therapeutic interventions. We also discuss the methodological challenges that we identified, and for which further work is needed. Examples are defining the importance of consistency within and across animal species and using GRADE's indirectness domain as a tool to predict translation from animal models to humans. PMID- 29324743 TI - An enhanced artificial bee colony algorithm (EABC) for solving dispatching of hydro-thermal system (DHTS) problem. AB - The dispatching of hydro-thermal system is a nonlinear programming problem with multiple constraints and high dimensions and the solution techniques of the model have been a hotspot in research. Based on the advantage of that the artificial bee colony algorithm (ABC) can efficiently solve the high-dimensional problem, an improved artificial bee colony algorithm has been proposed to solve DHTS problem in this paper. The improvements of the proposed algorithm include two aspects. On one hand, local search can be guided in efficiency by the information of the global optimal solution and its gradient in each generation. The global optimal solution improves the search efficiency of the algorithm but loses diversity, while the gradient can weaken the loss of diversity caused by the global optimal solution. On the other hand, inspired by genetic algorithm, the nectar resource which has not been updated in limit generation is transformed to a new one by using selection, crossover and mutation, which can ensure individual diversity and make full use of prior information for improving the global search ability of the algorithm. The two improvements of ABC algorithm are proved to be effective via a classical numeral example at last. Among which the genetic operator for the promotion of the ABC algorithm's performance is significant. The results are also compared with those of other state-of-the-art algorithms, the enhanced ABC algorithm has general advantages in minimum cost, average cost and maximum cost which shows its usability and effectiveness. The achievements in this paper provide a new method for solving the DHTS problems, and also offer a novel reference for the improvement of mechanism and the application of algorithms. PMID- 29324742 TI - Functional characterization of adaptive variation within a cis-regulatory element influencing Drosophila melanogaster growth. AB - Gene expression variation is a major contributor to phenotypic diversity within species and is thought to play an important role in adaptation. However, examples of adaptive regulatory polymorphism are rare, especially those that have been characterized at both the molecular genetic level and the organismal level. In this study, we perform a functional analysis of the Drosophila melanogaster CG9509 enhancer, a cis-regulatory element that shows evidence of adaptive evolution in populations outside the species' ancestral range in sub-Saharan Africa. Using site-directed mutagenesis and transgenic reporter gene assays, we determined that 3 single nucleotide polymorphisms are responsible for the difference in CG9509 expression that is observed between sub-Saharan African and cosmopolitan populations. Interestingly, while 2 of these variants appear to have been the targets of a selective sweep outside of sub-Saharan Africa, the variant with the largest effect on expression remains polymorphic in cosmopolitan populations, suggesting it may be subject to a different mode of selection. To elucidate the function of CG9509, we performed a series of functional and tolerance assays on flies in which CG9509 expression was disrupted. We found that CG9509 plays a role in larval growth and influences adult body and wing size, as well as wing loading. Furthermore, variation in several of these traits was associated with variation within the CG9509 enhancer. The effect on growth appears to result from a modulation of active ecdysone levels and expression of growth factors. Taken together, our findings suggest that selection acted on 3 sites within the CG9509 enhancer to increase CG9509 expression and, as a result, reduce wing loading as D. melanogaster expanded out of sub-Saharan Africa. PMID- 29324744 TI - QCloud: A cloud-based quality control system for mass spectrometry-based proteomics laboratories. AB - The increasing number of biomedical and translational applications in mass spectrometry-based proteomics poses new analytical challenges and raises the need for automated quality control systems. Despite previous efforts to set standard file formats, data processing workflows and key evaluation parameters for quality control, automated quality control systems are not yet widespread among proteomics laboratories, which limits the acquisition of high-quality results, inter-laboratory comparisons and the assessment of variability of instrumental platforms. Here we present QCloud, a cloud-based system to support proteomics laboratories in daily quality assessment using a user-friendly interface, easy setup, automated data processing and archiving, and unbiased instrument evaluation. QCloud supports the most common targeted and untargeted proteomics workflows, it accepts data formats from different vendors and it enables the annotation of acquired data and reporting incidences. A complete version of the QCloud system has successfully been developed and it is now open to the proteomics community (http://qcloud.crg.eu). QCloud system is an open source project, publicly available under a Creative Commons License Attribution ShareAlike 4.0. PMID- 29324745 TI - Proof-of-concept study of an at-home, engaging, digital intervention for pediatric ADHD. AB - OBJECTIVE: Pharmacological and behavioral therapies have limited impact on the distinct neurocognitive impairments associated with ADHD, and existing cognitive training programs have shown limited efficacy. This proof-of-concept study assessed treatment acceptability and explored outcomes for a novel digital treatment targeting cognitive processes implicated in ADHD. METHOD: Participants included 40 children with ADHD and 40 children without ADHD. Following psychiatric screening, ADHD ratings, and baseline neuropsychological measures, participants completed 28-days of at-home treatment. Neuropsychological assessment was repeated at end-of-study along with treatment satisfaction measures. RESULTS: Eighty-four percent of treatment sessions were completed and ratings showed strong intervention appeal. Significant improvements were observed on a computerized attention task for the ADHD group and a highly impaired ADHD High Severity subgroup. There was no change for the non-ADHD group. Spatial working memory also improved for the ADHD group and the ADHD High Severity subgroup. CONCLUSION: Findings provide preliminary support that this treatment may improve attention, working memory, and inhibition in children with ADHD. Future research requires larger-scale randomized controlled trials that also evaluate treatment impact on functional impairments. TRIAL REGISTRATION: ClinicalTrials.gov NCT01943539. PMID- 29324746 TI - The relationship between observational scale and explained variance in benthic communities. AB - This study addresses the impact of spatial scale on explaining variance in benthic communities. In particular, the analysis estimated the fraction of community variation that occurred at a spatial scale smaller than the sampling interval (i.e., the geographic distance between samples). This estimate is important because it sets a limit on the amount of community variation that can be explained based on the spatial configuration of a study area and sampling design. Six benthic data sets were examined that consisted of faunal abundances, common environmental variables (water depth, grain size, and surficial percent cover), and sonar backscatter treated as a habitat proxy (categorical acoustic provinces). Redundancy analysis was coupled with spatial variograms generated by multiscale ordination to quantify the explained and residual variance at different spatial scales and within and between acoustic provinces. The amount of community variation below the sampling interval of the surveys (< 100 m) was estimated to be 36-59% of the total. Once adjusted for this small-scale variation, > 71% of the remaining variance was explained by the environmental and province variables. Furthermore, these variables effectively explained the spatial structure present in the infaunal community. Overall, no scale problems remained to compromise inferences, and unexplained infaunal community variation had no apparent spatial structure within the observational scale of the surveys (> 100 m), although small-scale gradients (< 100 m) below the observational scale may be present. PMID- 29324747 TI - Association of atrial fibrillation and cancer: Analysis from two large population based case-control studies. AB - BACKGROUND: An association between atrial fibrillation (AF) and risk of cancer has been suggested in several studies, including prospective cohort studies. However, the magnitude and the temporal nature of this association remain unclear. METHODS: Data from two large prospective population-based case-control studies, the Molecular Epidemiology of Colorectal Cancer (MECC, n = 8,383) and the Breast Cancer in Northern Israel Study (BCINIS, n = 11,608), were used to better understand the nature and temporality of a possible association between cancer diagnosis and AF events before and after cancer diagnosis. A case-control study approach was employed to study prior AF as a risk factor for cancer, and a cohort study approach was employed to study incident cancer as a risk factor for AF. RESULTS: AF was associated with a significant reduced odds of cancer as reflected in the case-control approach, with an adjusted OR = 0.77 (95% CI, 0.65 0.91), while cancer was not found to be significantly associated with elevated risk of AF in the cohort approach, with an adjusted HR = 1.10 (0.98-1.23). The immediate period (90 days) after an AF event was associated with a 1.85 times increased risk of cancer, and the immediate period after the diagnosis of cancer was associated with a 3.4 fold increased risk of AF. These findings probably reflect both the effect of acute transient conditions associated with new cancer diagnosis and detection bias. Similar results were identified with colorectal and breast cancer cases. CONCLUSIONS: Atrial fibrillation of longer than 90 days duration is associated with reduced odds of new cancer diagnosis. The results of this study suggest that an association observed in prior research may be due to instances related to cancer diagnosis and detection bias rather than a causal relationship. However, there may be bias in the sampling and residual confounding that distort the associations. PMID- 29324748 TI - Trans10,cis12 conjugated linoleic acid inhibits proliferation and migration of ovarian cancer cells by inducing ER stress, autophagy, and modulation of Src. AB - The goal of this study was to investigate the anti-cancer effects of Trans10,cis12 conjugated linoleic acid (t10,c12 CLA). MTT assays and QCMTM chemotaxis 96-wells were used to test the effect of t10,c12 CLA on the proliferation and migration and invasion of cancer cells. qPCR and Western Blotting were used to determine the expression of specific factors. RNA sequencing was conducted using the Illumina platform and apoptosis was measured using a flow cytometry assay. t10,c12 CLA (IC50, 7 MUM) inhibited proliferation of ovarian cancer cell lines SKOV-3 and A2780. c9,t11 CLA did not attenuate the proliferation of these cells. Transcription of 165 genes was significantly repressed and 28 genes were elevated. Genes related to ER stress, ATF4, CHOP, and GADD34 were overexpressed whereas EDEM2 and Hsp90, genes required for proteasomal degradation of misfolded proteins, were downregulated upon treatment. While apoptosis was not detected, t10,c12 CLA treatment led to 9-fold increase in autophagolysosomes and higher levels of LC3-II. G1 cell cycle arrest in treated cells was correlated with phosphorylation of GSK3beta and loss of beta-catenin. microRNA miR184 and miR215 were upregulated. miR184 likely contributed to G1 arrest by downregulating E2F1. miR215 upregulation was correlated with increased expression of p27/Kip-1. t10,c12 CLA-mediated inhibition of invasion and migration correlated with decreased expression of PTP1b and decreased Src activation by inhibiting phosphorylation at Tyr416. Due to its ability to inhibit proliferation and migration, t10,c12 CLA should be considered for treatment of ovarian cancer. PMID- 29324749 TI - Brand switching and toxic chemicals in cigarette smoke: A national study. AB - INTRODUCTION: US law requires disclosure of quantities of toxic chemicals (constituents) in cigarette smoke by brand and sub-brand. This information may drive smokers to switch to cigarettes with lower chemical quantities, under the misperception that doing so can reduce health risk. We sought to understand past brand-switching behavior and whether learning about specific chemicals in cigarette smoke increases susceptibility to brand switching. METHODS: Participants were US adult smokers surveyed by phone (n = 1,151, probability sample) and online (n = 1,561, convenience sample). Surveys assessed whether smokers had ever switched cigarette brands or styles to reduce health risk and about likelihood of switching if the smoker learned their brand had more of a specific chemical than other cigarettes. Chemicals presented were nicotine, carbon monoxide, lead, formaldehyde, arsenic, and ammonia. RESULTS: Past brand switching to reduce health risk was common among smokers (43% in phone survey, 28% in online survey). Smokers who were female, over 25, and current "light" cigarette users were more likely to have switched brands to reduce health risks (all p < .05). Overall, 61-92% of smokers were susceptible to brand switching based on information about particular chemicals. In both samples, lead, formaldehyde, arsenic, and ammonia led to more susceptibility to switch than nicotine (all p < .05). CONCLUSIONS: Many US smokers have switched brands or styles to reduce health risks. The majority said they might or would definitely switch brands if they learned their cigarettes had more of a toxic chemical than other brands. Brand switching is a probable unintended consequence of communications that show differences in smoke chemicals between brands. PMID- 29324750 TI - Biochar derived from corn straw affected availability and distribution of soil nutrients and cotton yield. AB - Biochar application as a soil amendment has been proposed as a strategy to improve soil fertility and increase crop yields. However, the effects of successive biochar applications on cotton yields and nutrient distribution in soil are not well documented. A three-year field study was conducted to investigate the effects of successive biochar applications at different rates on cotton yield and on the soil nutrient distribution in the 0-100 cm soil profile. Biochar was applied at 0, 5, 10, and 20 t ha-1 (expressed as Control, BC5, BC10, and BC20, respectively) for each cotton season, with identical doses of chemical fertilizers. Biochar enhanced the cotton lint yield by 8.0-15.8%, 9.3-13.9%, and 9.2-21.9% in 2013, 2014, and 2015, respectively, and high levels of biochar application achieved high cotton yields each year. Leaching of soil nitrate was reduced, while the pH values, soil organic carbon, total nitrogen (N), and available K content of the 0-20 cm soil layer were increased in 2014 and 2015. However, the changes in the soil available P content were less substantial. This study suggests that successive biochar amendments have the potential to enhance cotton productivity and soil fertility while reducing nitrate leaching. PMID- 29324752 TI - Tet protein function during Drosophila development. AB - The TET (Ten-eleven translocation) 1, 2 and 3 proteins have been shown to function as DNA hydroxymethylases in vertebrates and their requirements have been documented extensively. Recently, the Tet proteins have been shown to also hydroxylate 5-methylcytosine in RNA. 5-hydroxymethylcytosine (5hmrC) is enriched in messenger RNA but the function of this modification has yet to be elucidated. Because Cytosine methylation in DNA is barely detectable in Drosophila, it serves as an ideal model to study the biological function of 5hmrC. Here, we characterized the temporal and spatial expression and requirement of Tet throughout Drosophila development. We show that Tet is essential for viability as Tet complete loss-of-function animals die at the late pupal stage. Tet is highly expressed in neuronal tissues and at more moderate levels in somatic muscle precursors in embryos and larvae. Depletion of Tet in muscle precursors at early embryonic stages leads to defects in larval locomotion and late pupal lethality. Although Tet knock-down in neuronal tissue does not cause lethality, it is essential for neuronal function during development through its affects upon locomotion in larvae and the circadian rhythm of adult flies. Further, we report the function of Tet in ovarian morphogenesis. Together, our findings provide basic insights into the biological function of Tet in Drosophila, and may illuminate observed neuronal and muscle phenotypes observed in vertebrates. PMID- 29324751 TI - Stage-specific IFN-induced and IFN gene expression reveal convergence of type I and type II IFN and highlight their role in both acute and chronic stage of pathogenic SIV infection. AB - Interferons (IFNs) play a major role in controlling viral infections including HIV/SIV infections. Persistent up-regulation of interferon stimulated genes (ISGs) is associated with chronic immune activation and progression in SIV/HIV infections, but the respective contribution of different IFNs is unclear. We analyzed the expression of IFN genes and ISGs in tissues of SIV infected macaques to understand the respective roles of type I and type II IFNs. Both IFN types were induced in lymph nodes during early stage of primary infection and to some extent in rectal biopsies but not in PBMCs. Induction of Type II IFN expression persisted during the chronic phase, in contrast to undetectable induction of type I IFN expression. Global gene expression analysis with a major focus on ISGs revealed that at both acute and chronic infection phases most differentially expressed ISGs were inducible by both type I and type II IFNs and displayed the highest increases, indicating strong convergence and synergy between type I and type II IFNs. The analysis of functional signatures of ISG expression revealed temporal changes in IFN expression patterns identifying phase-specific ISGs. These results suggest that IFN-gamma strongly contribute to shape ISG upregulation in addition to type I IFN. PMID- 29324753 TI - MicroRNA signatures of endogenous Huntingtin CAG repeat expansion in mice. AB - In Huntington's disease (HD) patients and in model organisms, messenger RNA transcriptome has been extensively studied; in contrast, comparatively little is known about expression and potential role of microRNAs. Using RNA-sequencing, we have quantified microRNA expression in four brain regions and liver, at three different ages, from an allelic series of HD model mice with increasing CAG length in the endogenous Huntingtin gene. Our analyses reveal CAG length dependent microRNA expression changes in brain, with 159 microRNAs selectively altered in striatum, 102 in cerebellum, 51 in hippocampus, and 45 in cortex. In contrast, a progressive CAG length-dependent microRNA dysregulation was not observed in liver. We further identify microRNAs whose transcriptomic response to CAG length expansion differs significantly among the brain regions and validate our findings in data from a second, independent cohort of mice. Using existing mRNA expression data from the same animals, we assess the possible relationships between microRNA and mRNA expression and highlight candidate microRNAs that are negatively correlated with, and whose predicted targets are enriched in, CAG length dependent mRNA modules. Several of our top microRNAs (Mir212/Mir132, Mir218, Mir128 and others) have been previously associated with aspects of neuronal development and survival. This study provides an extensive resource for CAG length-dependent changes in microRNA expression in disease-vulnerable and resistant brain regions in HD mice, and provides new insights for further investigation of microRNAs in HD pathogenesis and therapeutics. PMID- 29324754 TI - Fast, quantitative, murine cardiac 19F MRI/MRS of PFCE-labeled progenitor stem cells and macrophages at 9.4T. AB - PURPOSE: To a) achieve cardiac 19F-Magnetic Resonance Imaging (MRI) of perfluoro crown-ether (PFCE) labeled cardiac progenitor stem cells (CPCs) and bone-derived bone marrow macrophages, b) determine label concentration and cellular load limits, and c) achieve spectroscopic and image-based quantification. METHODS: Theoretical simulations and experimental comparisons of spoiled-gradient echo (SPGR), rapid acquisition with relaxation enhancement (RARE), and steady state at free precession (SSFP) pulse sequences, and phantom validations, were conducted using 19F MRI/Magnetic Resonance Spectroscopy (MRS) at 9.4 T. Successful cell labeling was confirmed using flow cytometry and confocal microscopy. For CPC and macrophage concentration quantification, in vitro and post-mortem cardiac validations were pursued with the use of the transfection agent FuGENE. Feasibility of fast imaging is demonstrated in murine cardiac acquisitions in vivo, and in post-mortem murine skeletal and cardiac applications. RESULTS: SPGR/SSFP proved favorable imaging sequences yielding good signal-to-noise ratio values. Confocal microscopy confirmed heterogeneity of cellular label uptake in CPCs. 19F MRI indicated lack of additional benefits upon label concentrations above 7.5-10 mg/ml/million cells. The minimum detectable CPC load was ~500k (~10k/voxel) in two-dimensional (2D) acquisitions (3-5 min) using the butterfly coil. Additionally, absolute 19F based concentration and intensity estimates (trifluoroacetic-acid solutions, macrophages, and labeled CPCs in vitro and post CPC injections in the post-mortem state) scaled linearly with fluorine concentrations. Fast, quantitative cardiac 19F-MRI was demonstrated with SPGR/SSFP and MRS acquisitions spanning 3-5 min, using a butterfly coil. CONCLUSION: The developed methodologies achieved in vivo cardiac 19F of exogenously injected labeled CPCs for the first time, accelerating imaging to a total acquisition of a few minutes, providing evidence for their potential for possible translational work. PMID- 29324755 TI - HIV-1 co-receptor tropism and liver fibrosis in HIV-infected patients. AB - BACKGROUND: In vitro, gp120 of both X4 and R5 HIV-1 strains activates human hepatic stellate cells, but if it can promote liver fibrosis in vivo is unknown. We aimed to evaluate if patients carrying X4 or R5 strains have a different liver fibrosis (LF) progression over time. METHODS: A total of 1,137 HIV-infected patients in ICONA cohort (21% females, 7% HCV co-infected) with an available determination of HIV-1 co-receptor tropism (CRT), a Fibrosis-4 Index for Liver Fibrosis (FIB-4) <3.25 and at least one-year follow-up were included. CRT was assessed by gp120 sequencing on plasma RNA and geno2pheno algorithm (10% false positive rate) or by Trofile. LF was assessed by means of FIB-4. LF progression was defined as an absolute score increase or a transition to higher fibrosis stratum and/or occurrence of liver-related clinical events. RESULTS: A total of 249 (22%) patients carried X4 strains, which were associated with older age, lower CD4 count, lower nadir CD4, and intravenous drug use. Overall, X4 and R5 patients had similar baseline FIB-4 scores and similar mean FIB-4 slope after a median follow-up of 35 months. There was no difference between X4 and R5 for time to LF progression (p = 0.925). Estimated risk of LF at 24 months (95% CI) after baseline in X4 and R5 was 10.6% (8.3-12.9) and 9.9% (5.9-14.0), respectively. Age, HCV co-infection, diabetes, HIV-duration, HIV-RNA>100.000 cp/mL, antiretroviral therapy exposure were associated with LF progression at multivariate analysis. CONCLUSIONS: A slight LF progression over time was observed in HIV-infected patients. No difference was demonstrated for X4 and R5 HIV-1 strains in accelerating LF evolution. PMID- 29324756 TI - Associations of plasma clusterin and Alzheimer's disease-related MRI markers in adults at mid-life: The CARDIA Brain MRI sub-study. AB - BACKGROUND: Clinical and epidemiological studies of older persons have implicated clusterin in Alzheimer's disease (AD) pathogenesis. In the context of identifying early biomarkers of risk, we examined associations of plasma clusterin and characteristics of AD in middle-aged individuals from the community. MATERIALS AND METHODS: Subjects were 639 cognitively normal individuals (mean age 50 +/- 3.5) from the Coronary Artery Risk Development in Young Adults (CARDIA) Brain MRI sub-study. Clusterin was quantified using ELISA (mean 255+/- 31 ng/ml). Associations were assessed between clusterin and volumes of brain regions known to atrophy in early AD, including entorhinal cortex (ECV), hippocampus (HV), and medial temporal lobe (MTLV) volumes (cm3). Total brain volume (TBV) and volumes of structures affected in later AD were examined for comparison. RESULTS: In multivariable models, higher clusterin had a negative non-linear association with ECV (combined left and right hemispheres), and this association was influenced by the highest clusterin levels. Compared to mean clusterin, 1 and 2 standard deviation (SD) level increases in clusterin were associated with -2.1% (95% CI: 3.3,-0.9) and -7.3% (95% CI: -11.3,-3.3) lower ECV, respectively. Similar relationships were observed between clusterin and HV, although the relationship was stronger for left-side HV than the right-side. However, the association was not significant after adjusting for covariates. Negative non-linear associations between clusterin and MTLV were strongest for the left side: compared to mean clusterin, 1 and 2 SD level increases in clusterin were associated with -0.9% (95% CI: -1.9, 0.1) and -3.7% (95% CI: -7.1, -0.3) lower MTLV. There were no significant associations between clusterin and brain structures affected in later AD. CONCLUSIONS: In middle-aged adults unselected for AD, plasma clusterin was associated with lower volume of the entorhinal cortex, an area that atrophies early in AD. Clusterin could be informative as part of a multi-component preclinical marker for AD. PMID- 29324757 TI - Genome downsizing, physiological novelty, and the global dominance of flowering plants. AB - The abrupt origin and rapid diversification of the flowering plants during the Cretaceous has long been considered an "abominable mystery." While the cause of their high diversity has been attributed largely to coevolution with pollinators and herbivores, their ability to outcompete the previously dominant ferns and gymnosperms has been the subject of many hypotheses. Common among these is that the angiosperms alone developed leaves with smaller, more numerous stomata and more highly branching venation networks that enable higher rates of transpiration, photosynthesis, and growth. Yet, how angiosperms pack their leaves with smaller, more abundant stomata and more veins is unknown but linked-we show to simple biophysical constraints on cell size. Only angiosperm lineages underwent rapid genome downsizing during the early Cretaceous period, which facilitated the reductions in cell size necessary to pack more veins and stomata into their leaves, effectively bringing actual primary productivity closer to its maximum potential. Thus, the angiosperms' heightened competitive abilities are due in no small part to genome downsizing. PMID- 29324758 TI - Settlement and post-settlement survival rates of the white seabream (Diplodus sargus) in the western Mediterranean Sea. AB - Survival during the settlement window is a limiting variable for recruitment. The survival is believed to be strongly determined by biological interactions and sea conditions, however it has been poorly investigated. We examined the settlement patterns related to relevant biotic and abiotic factors (i.e. Density-dependence, wind stress, wave height and coastal current velocity) potentially determining post-settler survival rates of a coastal necto-benthic fish of wide distribution in the Mediterranean and eastern Atlantic, the white seabream (Diplodus sargus). An observational study of the demography of juveniles of this species was carried out at six coves in Menorca Island (Balearic Islands, western Mediterranean). Three of the coves were located in the northern and wind exposed coast, at the Northeast (NE) side; while the other three were found along the southern and sheltered coast, at the Southwest (SW) side of the island. The settlement period extended from early May to late June and maximum juvenile densities at the sampling sites varied between 5 and 11 ind. m-1 with maximum values observed in late May simultaneously occurring in the two coasts. Our analysis of juvenile survival, based on the interpretation of the observed patters using an individual based model (IBM), revealed two stages in the size-mortality relationships. An initial density-dependent stage was observed for juveniles up to 20 mm TL, followed by a density independent stage when other factors dominated the survival at sizes > 20 mm TL. No significant environmental effects were observed for the small size class (<20mm TL). Different significant environmental effects affecting NE and SW coves were observed for the medium (20-30mm TL) and large (>30mm TL) size class. In the NE, the wind stress consistently affected the density of fish of 20-30 mm and >30 mm TL with a dome-shape effect with higher densities at intermediate values of wind stress and negative effect at the extremes. The best models applied in the SW coves showed a significant non-linear negative effect on fish density that was also consistent for both groups 20-30 mm and >30 mm TL. Higher densities were observed at low values of wave height in the two groups. Because of these variations, the number of juveniles present at the end of the period was unrelated to their initial density and average survival varied among locations. In consequence, recruitment was (1) primarily limited by denso-dependient procedures at settlement stage, and (2) by sea conditions at post-settlement, where extreme wave conditions depleted juveniles. Accordingly, regional hydrodynamic conditions during the settlement season produced significant impacts on the juvenile densities depending on their size and with contrasted effects in respectto cove orientation. The similar strength in larval supply between coves, in addition to the similar mean phenology for settlers in the north and south of the Island, suggests that all fish may come from the same parental reproductive pool. These factors should be taken into account when assessing relationships between settlers, recruits and adults of white seabream. PMID- 29324759 TI - Disease burden of methylmercury in the German birth cohort 2014. AB - This study aimed to estimate the disease burden of methylmercury for children born in Germany in the year 2014. Humans are mainly exposed to methylmercury when they eat fish or seafood. Prenatal methylmercury exposure is associated with IQ loss. To quantify this disease burden, we used Monte Carlo simulation to estimate the incidence of mild and severe mental retardation in children born to mothers who consume fish based on empirical data. Subsequently, we calculated the disease burden with the disability-adjusted life years (DALY)-method. DALYs combine mortality and morbidity in one measure and quantify the gap between an ideal situation, where the entire population experiences the standard life expectancy without disease and disability, and the actual situation. Thus, one DALY corresponds to the loss of one year of life in good health. The methylmercury induced burden of disease for the German birth cohort 2014 was an average of 14,186 DALY (95% CI 12,915-15,440 DALY). A large majority of the DALYs was attributed to morbidity as compared to mortality. Of the total disease burden, 98% were attributed to mild mental retardation, which only leads to morbidity. The remaining disease burden was a result of severe mental retardation with equal proportions of premature death and morbidity. PMID- 29324761 TI - Cross-linguistic regularities and learner biases reflect "core" mechanics. AB - Recent research in infant cognition and adult vision suggests that the mechanical object relationships may be more salient and naturally attention grabbing than similar but non-mechanical relationships. Here we examine two novel sources of evidence from language related to this hypothesis. In Experiments 1 and 2, we show that adults preferentially infer that the meaning of a novel preposition refers to a mechanical as opposed to a non-mechanical relationship. Experiments 3 and 4 examine cross-linguistic adpositions obtained on a large scale from machines or from experts, respectively. While these methods differ in the ease of data collection relative to the reliability of the data, their results converge: we find that across a range of diverse and historically unrelated languages, adpositions (such as prepositions) referring to the mechanical relationships of containment (e.g "in") and support (e.g. "on") are systematically shorter than closely matched but not mechanical words such as "behind," "beside," "above," "over," "out," and "off." These results first suggest that languages regularly contain traces of core knowledge representations and that cross-linguistic regularities can therefore be a useful and easily accessible form of information that bears on the foundations of non-linguistic thought. PMID- 29324760 TI - Bionomics of Phlebotomus argentipes in villages in Bihar, India with insights into efficacy of IRS-based control measures. AB - BACKGROUND: Visceral leishmaniasis (VL) is a deadly vector-borne disease. Approximately 90% of Indian VL cases occur in Bihar, where the sand fly, Phlebotomus argentipes, is the principal vector. Sand fly control in Bihar consists of indoor residual spraying (IRS), the practice of spraying the inner walls of village dwellings with insecticides. Prior researchers have evaluated success of IRS-control by estimating vector abundance in village houses, but the number of sampling periods (n = 2-3) were minimal, and outdoor-resting P. argentipes were neglected. We describe a large-scale field study, performed in 24 villages within two Bihari districts, during which P. argentipes were collected biweekly over 47-weeks, in cattle enclosures, houses, and outdoors in peri domestic vegetation. The objectives of this study were to provide updated P. argentipes ecological field data, and determine if program-initiated IRS treatment had led to noticeable differences in vector abundance. PRINCIPAL FINDINGS: P. argentipes (n = 126,901) relative abundance was greatest during the summer months (June-August) when minimum temperatures were highest. P. argentipes were most frequently collected from cattle enclosures (~46% total; ~56% blood fed). Many sand flies were found to have taken blood from multiple sources, with ~81% having blood fed on humans and ~60% blood feeding on bovines. Nonparametric statistical tests were determined most appropriate for evaluating IRS-treatment. Differences in P. argentipes abundance in houses, cattle enclosures and vegetation were detected between IRS-treated and untreated villages in only ~9% of evaluation periods occurring during the peak period of human-vector exposure (June-August) and in ~8% of the total observations. No significant differences were detected between the numbers of P. argentipes collected in vegetation close to the experimental villages. CONCLUSION: The results of this study provide updated data regarding P. argentipes seasonal abundance, spatial distribution, and host preferances, and suggest vector abundance has not significantly declined in IRS-treated villages. We suggest that IRS be supplemented with vector control strategies targeting exophagic, exophilic P. argentipes, and that disease surveillance be accompanied by rigorous vector population monitoring. PMID- 29324763 TI - Factors associated with urinary tract infections among HIV-1 infected patients. AB - BACKGROUND: Urinary tract infections remain an important yet underinvestigated clinical problem among HIV infected patients. Here we analyze factors associated with its occurrence and the spectrum of bacterial pathogens identified in the group of patients followed at the HIV Out-Patient Clinic in Warsaw. METHODS: Clinic database collected all medical information on patients routinely followed since 1994 to 2015. All patients with available urine culture were included into analyses, only the first culture was included. In statistical analyses logistic regression models were used to identify factors associated with positive culture. RESULTS: In total 608 patients had urine culture performed, 176 (28.9%) were females and 432 (71,1%) were males, 378 (62.2%) registered in care before/in 2007, 258 (42.4%) infected through homosexual contact. Median baseline lymphocyte CD4+ count was 385 (IQR:204-565) cells/MUl and median nadir lymphocyte CD4+ count 197 (86-306) cells/MUl. One hundred and eighteen patients were actively infected with HCV, as defined by positive real-time PCR. In total 141 (23.2%) patients had positive urine culture, the most common bacterial pathogen was E.coli (58.2%) and E. faecalis (12.8%). Patients with urinary tract infection were more likely to be female (51.8% vs. 22.1%, p<0.0001), infected through other than homosexual mode (80.1% vs. 50.7%, p<0.0001), with lower nadir CD4 count (139 vs. 221 cells/MUl, p<0.0001) and lower baseline HIV RNA (4.02 vs. 4.35 log copies/ml, p = 0.01) and less likely to be HCV RNA positive (26.9% vs. 49.2%, p = 0.01). In multivariate regression model being registered before/in 2007 (OR = 2.10; [95%CI: 1.24-3.56]), infected through other than homosexual mode (2.05;[1.18-3.56]) and female gender (2.14;[1.33-3.44]) were increasing and higher nadir CD4+ count decreasing (0.92;[0.85-0.99]) the odds of urinary tract infection. CONCLUSIONS: We have identified that almost one third of patients had urinary tract infections with non-typical bacterial pathogens. Population with increased odds of urinary tract infections are women, patients infected through other than homosexual contacts and those registered before 2007. PMID- 29324764 TI - Competing for the same value segments? Insight into the volatile Dutch political landscape. AB - Values are central to public debates today. Human values convey broad goals that serve as guiding principles in a person's life and value priorities differ across people in society. Groups in society holding opposing values (e.g., universalism versus security) will make different choices when voting in an election. Whereas over time, values are relatively stable, the number and type of political parties as well as the political values they communicate and disseminate have been changing. Groups of people holding the same human values may therefore vote for another (new) party in a later election. We focus on analyzing the relationship between human values and voting in elections, introducing a new methodology to analyze how value profiles relate to political support over time. We investigate the Dutch multi-party political system over five waves of the European Social Survey, spanning 2002 until 2010. Whilst previous research has focused on individual values separately and focused on voters only, we (1) distinguish groups holding a similar set of opposing and compatible values (value profile) instead of focusing on single values in the the entire population; (2) incorporate a correction for differences in scale use in our model; (3) compare voting over time; (4) include non-voters, a growing group in Dutch society. We find evidence that specific value profiles are related to voting for a specific set of political parties. We also find that specific value profiles distinguish non-voters from voters and that voters for populist parties resemble non-voters. PMID- 29324762 TI - Obesogenic diets alter metabolism in mice. AB - Obesity and accompanying metabolic disease is negatively correlated with lung health yet the exact mechanisms by which obesity affects the lung are not well characterized. Since obesity is associated with lung diseases as chronic bronchitis and asthma, we designed a series of experiments to measure changes in lung metabolism in mice fed obesogenic diets. Mice were fed either control or high fat/sugar diet (45%kcal fat/17%kcal sucrose), or very high fat diet (60%kcal fat/7% sucrose) for 150 days. We performed untargeted metabolomics by GC-TOFMS and HILIC-QTOFMS and lipidomics by RPLC-QTOFMS to reveal global changes in lung metabolism resulting from obesity and diet composition. From a total of 447 detected metabolites, we found 91 metabolite and lipid species significantly altered in mouse lung tissues upon dietary treatments. Significantly altered metabolites included complex lipids, free fatty acids, energy metabolites, amino acids and adenosine and NAD pathway members. While some metabolites were altered in both obese groups compared to control, others were different between obesogenic diet groups. Furthermore, a comparison of changes between lung, kidney and liver tissues indicated few metabolic changes were shared across organs, suggesting the lung is an independent metabolic organ. These results indicate obesity and diet composition have direct mechanistic effects on composition of the lung metabolome, which may contribute to disease progression by lung-specific pathways. PMID- 29324766 TI - Liver transplantation for alcoholic hepatitis: A systematic review with meta analysis. AB - BACKGROUND: The rate of alcohol relapse among patients who underwent liver transplantation for alcoholic hepatitis (AH) is not precisely known. AIM: Synthesize the available evidence on liver transplantation for AH to assess alcohol relapse and 6-month survival. METHODS: Meta-analysis of trials evaluating liver transplantation for AH, either clinically severe or diagnosed on the explant. RESULTS: Eleven studies were included. The pooled estimate rate for alcohol relapse was 0.22 (95% CI = 0.12-0.36) in overall analysis with high heterogeneity between studies (I2 = 76%), 0.20 (95% CI = 0.07-0.43) in the subgroup analysis including patients with clinically severe AH (I2 = 84%), 0.14 (95% CI = 0.08-0.23) among patients with clinically severe AH in sensitivity analysis excluding the discrepant studies that did not use stringent selection criteria for liver transplantation (I2 = 0%), and 0.15 (95% CI = 0.07-0.27) for recurrent harmful alcohol consumption among patients with clinically severe AH (I2 = 3%). The risk of alcohol relapse was not different between AH transplanted patients and patients with alcoholic cirrhosis who underwent elective liver transplantation in sensitivity analysis excluding the discrepant studies (OR = 1.68, 95%CI = 0.79-3.58, p = 0.2, I2 = 16%). The pooled estimate rate for 6-month survival was 0.85 (95% CI = 0.77-0.91, I2 = 49%), and 0.80 among patients transplanted for clinically severe AH (95% CI = 0.69-0.88, I2 = 30%). AH transplanted patients had similar 6-month survival to patients with alcoholic cirrhosis who underwent elective liver transplantation (OR = 2.00, 95% CI = 0.95 4.23, p = 0.07, I2 = 0%). CONCLUSION: Using stringent selection criteria, 14% of patients with clinically severe AH have alcohol relapse after liver transplantation. The percentage of alcohol relapse of AH transplanted patients is similar than that of patients who underwent elective liver transplantation. PMID- 29324765 TI - Brassinosteroids regulate root growth by controlling reactive oxygen species homeostasis and dual effect on ethylene synthesis in Arabidopsis. AB - The brassinosteroids (BRs) represent a class of phytohormones, which regulate numerous aspects of growth and development. Here, a det2-9 mutant defective in BR synthesis was identified from an EMS mutant screening for defects in root length, and was used to investigate the role of BR in root development in Arabidopsis. The det2-9 mutant displays a short-root phenotype, which is result from the reduced cell number in root meristem and decreased cell size in root maturation zone. Ethylene synthesis is highly increased in the det2-9 mutant compared with the wild type, resulting in the hyper-accumulation of ethylene and the consequent inhibition of root growth. The short-root phenotype of det2-9 was partially recovered in the det2-9/acs9 double mutant and det2-9/ein3/eil1-1 triple mutant which have defects either in ethylene synthesis or ethylene signaling, respectively. Exogenous application of BR showed that BRs either positively or negatively regulate ethylene biosynthesis in a concentration-dependent manner. Different from the BR induced ethylene biosynthesis through stabilizing ACSs stability, we found that the BR signaling transcription factors BES1 and BZR1 directly interacted with the promoters of ACS7, ACS9 and ACS11 to repress their expression, indicating a native regulation mechanism under physiological levels of BR. In addition, the det2-9 mutant displayed over accumulated superoxide anions (O2-) compared with the wild-type control, and the increased O2- level was shown to contribute to the inhibition of root growth. The BR-modulated control over the accumulation of O2- acted via the peroxidase pathway rather than via the NADPH oxidase pathway. This study reveals an important mechanism by which the hormone cross-regulation between BRs and ethylene or/and ROS is involved in controlling root growth and development in Arabidopsis. PMID- 29324767 TI - Glass promotes the differentiation of neuronal and non-neuronal cell types in the Drosophila eye. AB - Transcriptional regulators can specify different cell types from a pool of equivalent progenitors by activating distinct developmental programs. The Glass transcription factor is expressed in all progenitors in the developing Drosophila eye, and is maintained in both neuronal and non-neuronal cell types. Glass is required for neuronal progenitors to differentiate as photoreceptors, but its role in non-neuronal cone and pigment cells is unknown. To determine whether Glass activity is limited to neuronal lineages, we compared the effects of misexpressing it in neuroblasts of the larval brain and in epithelial cells of the wing disc. Glass activated overlapping but distinct sets of genes in these neuronal and non-neuronal contexts, including markers of photoreceptors, cone cells and pigment cells. Coexpression of other transcription factors such as Pax2, Eyes absent, Lozenge and Escargot enabled Glass to induce additional genes characteristic of the non-neuronal cell types. Cell type-specific glass mutations generated in cone or pigment cells using somatic CRISPR revealed autonomous developmental defects, and expressing Glass specifically in these cells partially rescued glass mutant phenotypes. These results indicate that Glass is a determinant of organ identity that acts in both neuronal and non-neuronal cells to promote their differentiation into functional components of the eye. PMID- 29324768 TI - Identifying human diamine sensors for death related putrescine and cadaverine molecules. AB - Pungent chemical compounds originating from decaying tissue are strong drivers of animal behavior. Two of the best-characterized death smell components are putrescine (PUT) and cadaverine (CAD), foul-smelling molecules produced by decarboxylation of amino acids during decomposition. These volatile polyamines act as 'necromones', triggering avoidance or attractive responses, which are fundamental for the survival of a wide range of species. The few studies that have attempted to identify the cognate receptors for these molecules have suggested the involvement of the seven-helix trace amine-associated receptors (TAARs), localized in the olfactory epithelium. However, very little is known about the precise chemosensory receptors that sense these compounds in the majority of organisms and the molecular basis of their interactions. In this work, we have used computational strategies to characterize the binding between PUT and CAD with the TAAR6 and TAAR8 human receptors. Sequence analysis, homology modeling, docking and molecular dynamics studies suggest a tandem of negatively charged aspartates in the binding pocket of these receptors which are likely to be involved in the recognition of these small biogenic diamines. PMID- 29324769 TI - Impaired resolution of DSS-induced colitis in mice lacking the glucocorticoid receptor in myeloid cells. AB - Inflammatory bowel disease (IBD) is a highly prevalent intestinal disorder for which no cure exists. Currently, the standard first-line treatment of IBD consists of systemic glucocorticoid (GC) application, even though therapy can be complicated by unresponsiveness or adverse effects. In view of the importance of macrophages and neutrophils for the pathogenesis of IBD we set out to define the relevance of these cell types as targets of GC using the mouse model of DSS induced colitis. We found that the disease did not resolve in GRlysM mice lacking the GC receptor (GR) in myeloid cells after removal of the chemical insult. While clinical symptoms and tissue damage in the colon ameliorated again in GRflox mice, the disease further aggravated in GRlysM littermates. The observed difference coincided with an increased abundance of macrophages in inflammatory infiltrates in the colon of mutant mice whereas neutrophil and T cell numbers were similar. Concomitantly, systemic IL-6 secretion and mRNA levels of pro inflammatory cytokines in the colon were elevated in GRlysM mice and gene expression of scavenger receptors and IL-10 was diminished. Taken together, our results reveal an important role of myeloid cells as targets of GC in DSS-induced colitis and probably in IBD in humans as well. PMID- 29324770 TI - Phosphorus application reduces aluminum toxicity in two Eucalyptus clones by increasing its accumulation in roots and decreasing its content in leaves. AB - Under acidic conditions, aluminum (Al) toxicity is an important factor limiting plant productivity; however, the application of phosphorus (P) might alleviate the toxic effects of Al. In this study, seedlings of two vegetatively propagated Eucalyptus clones, E. grandis * E. urophylla 'G9' and E. grandis * E. urophylla 'DH32-29'were subjected to six treatments (two levels of Al stress and three levels of P). Under excessive Al stress, root Al content was higher, whereas shoot and leaf Al contents were lower with P application than those without P application. Further, Al accumulation was higher in the roots, but lower in the shoots and leaves of G9 than in those of DH32-29. The secretion of organic acids was higher under Al stress than under no Al stress. Further, under Al stress, the roots of G9 secreted more organic acids than those of DH32-29. With an increase in P supply, Al-induced secretion of organic acids from roots decreased. Under Al stress, some enzymes, including PEPC, CS, and IDH, played important roles in organic acid biosynthesis and degradation. Thus, our results indicate that P can reduce Al toxicity via the fixation of elemental Al in roots and restriction of its transport to stems and leaves, although P application cannot promote the secretion of organic acid anions. Further, the higher Al-resistance of G9 might be attributed to the higher Al accumulation in and organic acid anion secretion from roots and the lower levels of Al in leaves. PMID- 29324771 TI - Impact of grouping complications on mortality in traumatic brain injury: A nationwide population-based study. AB - Traumatic brain injury (TBI) is an important health issue with high mortality. Various complications of physiological and cognitive impairment may result in disability or death after TBI. Grouping of these complications could be treated as integrated post-TBI syndromes. To improve risk estimation, grouping TBI complications should be investigated, to better predict TBI mortality. This study aimed to estimate mortality risk based on grouping of complications among TBI patients. Taiwan's National Health Insurance Research Database was used in this study. TBI was defined according to the International Classification of Diseases, Ninth Revision, Clinical Modification codes: 801-804 and 850-854. The association rule data mining method was used to analyze coexisting complications after TBI. The mortality risk of post-TBI complication sets with the potential risk factors was estimated using Cox regression. A total 139,254 TBI patients were enrolled in this study. Intracerebral hemorrhage was the most common complication among TBI patients. After frequent item set mining, the most common post-TBI grouping of complications comprised pneumonia caused by acute respiratory failure (ARF) and urinary tract infection, with mortality risk 1.55 (95% C.I.: 1.51-1.60), compared with those without the selected combinations. TBI patients with the combined combinations have high mortality risk, especially those aged <20 years with septicemia, pneumonia, and ARF (HR: 4.95, 95% C.I.: 3.55-6.88). We used post-TBI complication sets to estimate mortality risk among TBI patients. According to the combinations determined by mining, especially the combination of septicemia with pneumonia and ARF, TBI patients have a 1.73-fold increased mortality risk, after controlling for potential demographic and clinical confounders. TBI patients aged<20 years with each combination of complications also have increased mortality risk. These results could provide physicians and caregivers with important information to increase their awareness about sequences of clinical syndromes among TBI patients, to prevent possible deaths among these patients. PMID- 29324772 TI - Examination of Clock and Adcyap1 gene variation in a neotropical migratory passerine. AB - Complex behavioral traits, such as those making up a migratory phenotype, are regulated by multiple environmental factors and multiple genes. We investigated possible relationships between microsatellite variation at two candidate genes implicated in the control of migratory behavior, Clock and Adcyap1, and several aspects of migratory life-history and evolutionary divergence in the Painted Bunting (Passerina ciris), a species that shows wide variation in migratory and molting strategies across a disjunct distribution. We focused on Clock and Adcyap1 microsatellite variation across three Painted Bunting populations in Oklahoma, Louisiana, and North Carolina, and for the Oklahoma breeding population we used published migration tracking data on adult males to explore phenotypic variation in individual migratory behavior. We found no correlation between microsatellite allele size within either Clock and Adcyap1 relative to the initiation or duration of fall migration in adult males breeding in Oklahoma. We also show the lack of significant correlations with aspects of the migratory phenotype for the Louisiana population. Our research highlights the limitations of studying microsatellite allelic mutations that are of undetermined functional influence relative to complex behavioral phenotypes. PMID- 29324773 TI - The impact of a short-term cohousing initiative among schizophrenia patients, high school students, and their social context: A qualitative case study. AB - BACKGROUND: A number of programs have been developed to promote the contact between adolescents and mentally-ill patients, in order to break the stigma, improve understanding, promote mental health and prevent substance abuse. The aim of this study was to describe the experience of patients with schizophrenia, high school students, and their social context, participating in a short-term cohousing initiative. METHODS: A qualitative case-study approach was implemented. Patients with schizophrenia from the San Juan de Dios Psychiatric Hospital, female students from Almen High School, and participants from their social context (parents, hospital staff, and teachers) were included, using purposeful sampling. Data were collected from 51 participants (15 patients, nine students, 11 hospital staff, six teachers, 10 parents) via non-participant observation, focus groups, informal interviews, researchers' field notes and patients' personal diaries and letters. A thematic analysis was performed. RESULTS: The themes identified included a) learning to live together: students and patients participate and learn together; b) the perception of the illness and the mentally ill: the barrier between health and disease is very slim, and society tends to avoid contact with those who are ill; c) change: a transformation takes place in students, in their self-perception, based on the real and intense nature of the experience; d) a trial and an opportunity: patients test their ability to live outside the hospital; e) discharge and readmission: discharge is experienced as both a liberation and a difficulty, whereas relapse and readmission are experienced as failures. CONCLUSIONS: Our findings can help us to better understand schizophrenia and encourage a more positive approach towards both the illness and those who suffer from it. These results may be used for the development of cohousing programs in controlled environments. PMID- 29324774 TI - Activated carbon N-acetylcysteine microcapsule protects against nonalcoholic fatty liver disease in young rats via activating telomerase and inhibiting apoptosis. AB - Non-alcoholic fatty liver disease (NAFLD) is becoming one of the world's most common chronic liver diseases in childhood, yet no therapy is available that has been approved by the food and drug administration (FDA). Previous studies have reported that telomere and telomerase are involved the development and progression of NAFLD. This study was designed to investigate the potential beneficial effects of activated carbon N-acetylcysteine (ACNAC) microcapsules on the development of NAFLD in young rats as well as the underlying mechanism(s) involved. Three-week old male Sprague Dawley rats were given high-fat diet (HFD) with/without ACNAC treatment for 7 consecutive weeks. Liver pathologies were determined by hematoxylin and eosin (H&E) and Oil Red O staining, as well as by changes in biochemical parameters of plasma alanine transaminase (ALT) and aspartate transaminase (AST) levels, respectively. Glucose homeostasis was evaluated by the glucose tolerance test and the liver telomere length and activity were measured by real time PCR and telomeric repeat amplification protocol (TRAP). Western blot analysis was performed to determine the expression level of Bcl-2, Bax and Caspase-3. Our results demonstrated that ACNAC supplementation improved liver pathologies of rats that received long-term HFD feeding. ACNAC supplementation prevented HFD-induced telomere shortening and improved telomerase activity. Moreover, in comparison to HFD-fed rats, ACNAC supplementation markedly increased the expression of Bcl-2, but significantly decreased the expression of Bax and Caspase-3 in juvenile rats. Together, these results indicate that ACNAC may be a promising choice for preventing and treating NAFLD among children. PMID- 29324775 TI - The optimal threshold of serum ceruloplasmin in the diagnosis of Wilson's disease: A large hospital-based study. AB - BACKGROUND AND AIMS: A ceruloplasmin (CP) concentration <200 mg/L is conventionally considered as one of the major diagnostic criteria for Wilson's disease (WD). However, the diagnostic accuracy of this threshold has never been investigated in a sufficiently large group of patients. This study aims to present the results of serum CP measurements in various patients and to identify the optimal cutoff value of CP for the diagnosis of WD. MATERIALS AND METHODS: We identified patients whose CP levels were evaluated from January 1, 2016 to December 31, 2016 using a laboratory information database. Data related to CP measurement were retrieved. We carefully reviewed patients' electronic medical records to correct errors and to obtain other necessary data. Data related to WD were retrieved from a special document containing medical records of patients with WD, which were created, modified, and maintained by authors. RESULTS: CP level was determined in 4048 patients (WD, 297; non-WD, 3751). The mean serum CP level in patients with WD was 50.6+/-44.2 mg/L, which was significantly lower than that in non-WD patients (293.2+/-117.3 mg/L, p<0.001). Only 1.0% of patients with WD had CP >=200 mg/L. The sensitivity and specificity of CP for the diagnosis of WD were 99.0 and 80.9%, respectively, for the conventional cutoff value <200 mg/L and 95.6 and 95.5%, respectively, for the cutoff value <150 mg/L; the latter provided a higher diagnostic accuracy for WD. 53.0% of patients with liver failure, 37.7% of patients with nephrotic syndrome, and 23.0% of patients age 1 to 6 months had serum CP <200 mg/L. Patients who were pregnant and those with malignant tumors, and infectious and inflammatory diseases had significantly higher mean serum CP levels. CONCLUSION: The optimal cutoff value of CP for the diagnosis of WD in China is 150 mg/L, with a sensitivity of 95.6% and specificity of 95.5%, thereby providing the highest diagnostic accuracy for WD. PMID- 29324777 TI - Assessing an effective undergraduate module teaching applied bioinformatics to biology students. AB - Applied bioinformatics skills are becoming ever more indispensable for biologists, yet incorporation of these skills into the undergraduate biology curriculum is lagging behind, in part due to a lack of instructors willing and able to teach basic bioinformatics in classes that don't specifically focus on quantitative skill development, such as statistics or computer sciences. To help undergraduate course instructors who themselves did not learn bioinformatics as part of their own education and are hesitant to plunge into teaching big data analysis, a module was developed that is written in plain-enough language, using publicly available computing tools and data, to allow novice instructors to teach next-generation sequence analysis to upper-level undergraduate students. To determine if the module allowed students to develop a better understanding of and appreciation for applied bioinformatics, various tools were developed and employed to assess the impact of the module. This article describes both the module and its assessment. Students found the activity valuable for their education and, in focus group discussions, emphasized that they saw a need for more and earlier instruction of big data analysis as part of the undergraduate biology curriculum. PMID- 29324776 TI - Effect of a lifestyle intervention in obese infertile women on cardiometabolic health and quality of life: A randomized controlled trial. AB - BACKGROUND: The prevalence of obesity, an important cardiometabolic risk factor, is rising in women. Lifestyle improvements are the first step in treatment of obesity, but the success depends on factors like timing and motivation. Women are especially receptive to advice about lifestyle before and during pregnancy. Therefore, we hypothesize that the pre-pregnancy period provides the perfect window of opportunity to improve cardiometabolic health and quality of life of obese infertile women, by means of a lifestyle intervention. METHODS AND FINDINGS: Between 2009-2012, 577 infertile women between 18 and 39 years of age, with a Body Mass Index of >= 29 kg/m2, were randomized to a six month lifestyle intervention preceding infertility treatment, or to direct infertility treatment. The goal of the intervention was 5-10% weight loss or a BMI < 29 kg/m2. Cardiometabolic outcomes included weight, waist- and hip circumference, body mass index, systolic and diastolic blood pressure, fasting glucose and insulin, HOMA IR, hs-CRP, lipids and metabolic syndrome. All outcomes were measured by research nurses at randomization, 3 and 6 months. Self-reported quality of life was also measured at 12 months. Three participants withdrew their informed consent, and 63 participants discontinued the intervention program. Intention to treat analysis was conducted. Mixed effects regression models analyses were performed. Results are displayed as estimated mean differences between intervention and control group. Weight (-3.1 kg 95% CI: -4.0 to -2.2 kg; P < .001), waist circumference ( 2.4 cm 95% CI: -3.6 to -1.1 cm; P < .001), hip circumference (-3.0 95% CI: -4.2 to -1.9 cm; P < .001), BMI (-1.2 kg/m2 95% CI: -1.5 to -0.8 kg/m2; P < .001), systolic blood pressure (-2.8 mmHg 95% CI: -5.0 to -0.7 mmHg; P = .01) and HOMA IR (-0.5 95% CI: -0.8 to -0.1; P = .01) were lower in the intervention group compared to controls. Hs-CRP and lipids did not differ between groups. The odds ratio for metabolic syndrome in the intervention group was 0.53 (95% CI: 0.33 to 0.85; P < .01) compared to controls. Physical QoL scores were higher in the lifestyle intervention group (2.2 95% CI: 0.9 to 3.5; P = .001) while mental QoL scores did not differ. CONCLUSIONS: In obese infertile women, a lifestyle intervention prior to infertility treatment improves cardiometabolic health and self-reported physical quality of life (LIFEstyle study: Netherlands Trial Register: NTR1530). PMID- 29324779 TI - Filling gaps in bacterial amino acid biosynthesis pathways with high-throughput genetics. AB - For many bacteria with sequenced genomes, we do not understand how they synthesize some amino acids. This makes it challenging to reconstruct their metabolism, and has led to speculation that bacteria might be cross-feeding amino acids. We studied heterotrophic bacteria from 10 different genera that grow without added amino acids even though an automated tool predicts that the bacteria have gaps in their amino acid synthesis pathways. Across these bacteria, there were 11 gaps in their amino acid biosynthesis pathways that we could not fill using current knowledge. Using genome-wide mutant fitness data, we identified novel enzymes that fill 9 of the 11 gaps and hence explain the biosynthesis of methionine, threonine, serine, or histidine by bacteria from six genera. We also found that the sulfate-reducing bacterium Desulfovibrio vulgaris synthesizes homocysteine (which is a precursor to methionine) by using DUF39, NIL/ferredoxin, and COG2122 proteins, and that homoserine is not an intermediate in this pathway. Our results suggest that most free-living bacteria can likely make all 20 amino acids and illustrate how high-throughput genetics can uncover previously-unknown amino acid biosynthesis genes. PMID- 29324778 TI - Genetic diversity and recombination of enterovirus G strains in Japanese pigs: High prevalence of strains carrying a papain-like cysteine protease sequence in the enterovirus G population. AB - To study the genetic diversity of enterovirus G (EV-G) among Japanese pigs, metagenomics sequencing was performed on fecal samples from pigs with or without diarrhea, collected between 2014 and 2016. Fifty-nine EV-G sequences, which were >5,000 nucleotides long, were obtained. By complete VP1 sequence analysis, Japanese EV-G isolates were classified into G1 (17 strains), G2 (four strains), G3 (22 strains), G4 (two strains), G6 (two strains), G9 (six strains), G10 (five strains), and a new genotype (one strain). Remarkably, 16 G1 and one G2 strain identified in diarrheic (23.5%; four strains) or normal (76.5%; 13 strains) fecal samples possessed a papain-like cysteine protease (PL-CP) sequence, which was recently found in the USA and Belgium in the EV-G genome, at the 2C-3A junction site. This paper presents the first report of the high prevalence of viruses carrying PL-CP in the EV-G population. Furthermore, possible inter- and intragenotype recombination events were found among EV-G strains, including G1-PL CP strains. Our findings may advance the understanding of the molecular epidemiology and genetic evolution of EV-Gs. PMID- 29324780 TI - Methods for sampling geographically mobile female traders in an East African market setting. AB - BACKGROUND: The role of migration in the spread of HIV in sub-Saharan Africa is well-documented. Yet migration and HIV research have often focused on HIV risks to male migrants and their partners, or migrants overall, often failing to measure the risks to women via their direct involvement in migration. Inconsistent measures of mobility, gender biases in those measures, and limited data sources for sex-specific population-based estimates of mobility have contributed to a paucity of research on the HIV prevention and care needs of migrant and highly mobile women. This study addresses an urgent need for novel methods for developing probability-based, systematic samples of highly mobile women, focusing on a population of female traders operating out of one of the largest open air markets in East Africa. Our method involves three stages: 1.) identification and mapping of all market stall locations using Global Positioning System (GPS) coordinates; 2.) using female market vendor stall GPS coordinates to build the sampling frame using replicates; and 3.) using maps and GPS data for recruitment of study participants. RESULTS: The location of 6,390 vendor stalls were mapped using GPS. Of these, 4,064 stalls occupied by women (63.6%) were used to draw four replicates of 128 stalls each, and a fifth replicate of 15 pre selected random alternates for a total of 527 stalls assigned to one of five replicates. Staff visited 323 stalls from the first three replicates and from these successfully recruited 306 female vendors into the study for a participation rate of 94.7%. Mobilization strategies and involving traders association representatives in participant recruitment were critical to the study's success. CONCLUSION: The study's high participation rate suggests that this geospatial sampling method holds promise for development of probability based samples in other settings that serve as transport hubs for highly mobile populations. PMID- 29324781 TI - Neuraminidase inhibitor susceptibility and neuraminidase enzyme kinetics of human influenza A and B viruses circulating in Thailand in 2010-2015. AB - Amino acid substitutions within or near the active site of the viral neuraminidase (NA) may affect influenza virus fitness. In influenza A(H3N2) and B viruses circulating in Thailand between 2010 and 2015, we identified several NA substitutions that were previously reported to be associated with reduced inhibition by NA inhibitors (NAIs). To study the effect of these substitutions on the enzymatic properties of NA and on virus characteristics, we generated recombinant influenza viruses possessing either a wild type (WT) NA or an NA with a single I222V, S331G, or S331R substitution [in influenza A(H3N2) viruses] or a single D342S, A395T, A395V, or A395D NA substitution (in influenza B viruses). We generated recombinant (7:1) influenza A and B viruses on the genetic background of A/Puerto Rico/8/1934 (A/PR/8, H1N1) or B/Yamanashi/166/1998 (B/YAM) viruses, respectively. In contrast to the expected phenotypes, all the recombinant influenza A(H3N2) and B viruses carrying putative NA resistance substitutions were susceptible to NAIs. The Km and Vmax for the NAs of A/PR8-S331G and A/PR8 S331R viruses were higher than for the NA of WT virus, and the corresponding values for the B/YAM-D342S virus were lower than for the NA of WT virus. Although there was initial variation in the kinetics of influenza A and B viruses' replication in MDCK cells, their titers were comparable to each other and to WT viruses at later time points. All introduced substitutions were stable except for B/YAM-D342S and B/YAM-A395V which reverted to WT sequences after three passages. Our data suggest that inferring susceptibility to NAIs based on sequence information alone should be cautioned. The impact of NA substitution on NAI resistance, viral growth, and enzymatic properties is viral context dependent and should be empirically determined. PMID- 29324782 TI - MAFB is dispensable for the fetal testis morphogenesis and the maintenance of spermatogenesis in adult mice. AB - The transcription factor MAFB is an important regulator of the development and differentiation of various organs and tissues. Previous studies have shown that MAFB is expressed in embryonic and adult mouse testes and is expected to act as the downstream target of retinoic acid (RA) to initiate spermatogenesis. However, its exact localization and function remain unclear. Here, we localized MAFB expression in embryonic and adult testes and analyzed its gene function using Mafb-deficient mice. We found that MAFB and c-MAF are the only large MAF transcription factors expressed in testes, while MAFA and NRL are not. MAFB was localized in Leydig and Sertoli cells at embryonic day (E) 18.5 but in Leydig cells, Sertoli cells, and pachytene spermatocytes in adults. Mafb-deficient testes at E18.5 showed fully formed seminiferous tubules with no abnormal structure or differences in testicular somatic cell numbers compared with those of control wild-type mice. Additionally, the expression levels of genes related to development and function of testicular cells were unchanged between genotypes. In adults, the expression of MAFB in Sertoli cells was shown to be stage specific and induced by RA. By generating Mafbfl/fl CAG-CreERTM (Mafb-cKO) mice, in which Cre recombinase was activated upon tamoxifen treatment, we found that the neonatal cKO mice died shortly upon Mafb deletion, but adult cKO mice were alive upon deletion. Adult cKO mice were fertile, and spermatogenesis maintenance was normal, as indicated by histological analysis, hormone levels, and germ cell stage-specific markers. Moreover, there were no differences in the proportion of seminiferous stages between cKO mice and controls. However, RNA-Seq analysis of cKO Sertoli cells revealed that the down-regulated genes were related to immune function and phagocytosis activity but not spermatogenesis. In conclusion, we found that MAFB is dispensable for fetal testis morphogenesis and spermatogenesis maintenance in adult mice, despite the significant gene expression in different cell types, but MAFB might be critical for phagocytosis activity of Sertoli cells. PMID- 29324784 TI - Multiscale modelling of blood flow in cerebral microcirculation: Details at capillary scale control accuracy at the level of the cortex. AB - Aging or cerebral diseases may induce architectural modifications in human brain microvascular networks, such as capillary rarefaction. Such modifications limit blood and oxygen supply to the cortex, possibly resulting in energy failure and neuronal death. Modelling is key in understanding how these architectural modifications affect blood flow and mass transfers in such complex networks. However, the huge number of vessels in the human brain-tens of billions-prevents any modelling approach with an explicit architectural representation down to the scale of the capillaries. Here, we introduce a hybrid approach to model blood flow at larger scale in the brain microcirculation, based on its multiscale architecture. The capillary bed, which is a space-filling network, is treated as a porous medium and modelled using a homogenized continuum approach. The larger arteriolar and venular trees, which cannot be homogenized because of their fractal-like nature, are treated as a network of interconnected tubes with a detailed representation of their spatial organization. The main contribution of this work is to devise a proper coupling model at the interface between these two components. This model is based on analytical approximations of the pressure field that capture the strong pressure gradients building up in the capillaries connected to arterioles or venules. We evaluate the accuracy of this model for both very simple architectures with one arteriole and/or one venule and for more complex ones, with anatomically realistic tree-like vessels displaying a large number of coupling sites. We show that the hybrid model is very accurate in describing blood flow at large scales and further yields a significant computational gain by comparison with a classical network approach. It is therefore an important step towards large scale simulations of cerebral blood flow and lays the groundwork for introducing additional levels of complexity in the future. PMID- 29324783 TI - SIRT3 activator Honokiol attenuates beta-Amyloid by modulating amyloidogenic pathway. AB - Honokiol (poly-phenolic lignan from Magnolia grandiflora) is a Sirtuin-3 (SIRT3) activator which exhibit antioxidant activity and augment mitochondrial functions in several experimental models. Modern evidence suggests the critical role of SIRT3 in the progression of several metabolic and neurodegenerative diseases. Amyloid beta (Abeta), the precursor to extracellular senile plaques, accumulates in the brains of patients with Alzheimer's disease (AD) and is related to the development of cognitive impairment and neuronal cell death. Abeta is generated from amyloid-beta precursor protein (APP) through sequential cleavages, first by beta-secretase and then by gamma-secretase. Drugs modulating this pathway are believed to be one of the most promising strategies for AD treatment. In the present study, we found that Honokiol significantly enhanced SIRT3 expression, reduced reactive oxygen species generation and lipid peroxidation, enhanced antioxidant activities, and mitochondrial function thereby reducing Abeta and sAPPbeta levels in Chinese Hamster Ovarian (CHO) cells (carrying the amyloid precursor protein-APP and Presenilin PS1 mutation). Mechanistic studies revealed that Honokiol affects neither protein levels of APP nor alpha-secretase activity. In contrast, Honokiol increased the expression of AMPK, CREB, and PGC-1alpha, thereby inhibiting beta-secretase activity leading to reduced Abeta levels. These results suggest that Honokiol is an activator of SIRT3 capable of improving antioxidant activity, mitochondrial energy regulation, while decreasing Abeta, thereby indicating it to be a lead compound for AD drug development. PMID- 29324785 TI - Phylogenetic diversity, antimicrobial susceptibility and virulence gene profiles of Brachyspira hyodysenteriae isolates from pigs in Germany. AB - Swine dysentery (SD) is an economically important diarrheal disease in pigs caused by different strongly hemolytic Brachyspira (B.) species, such as B. hyodysenteriae, B. suanatina and B. hampsonii. Possible associations of epidemiologic data, such as multilocus sequence types (STs) to virulence gene profiles and antimicrobial susceptibility are rather scarce, particularly for B. hyodysenteriae isolates from Germany. In this study, B. hyodysenteriae (n = 116) isolated from diarrheic pigs between 1990 and 2016 in Germany were investigated for their STs, susceptibility to the major drugs used for treatment of SD (tiamulin and valnemulin) and genes that were previously linked with virulence and encode for hemolysins (tlyA, tlyB, tlyC, hlyA, BHWA1_RS02885, BHWA1_RS09085, BHWA1_RS04705, and BHWA1_RS02195), outer membrane proteins (OMPs) (bhlp16, bhlp17.6, bhlp29.7, bhmp39f, and bhmp39h) as well as iron acquisition factors (ftnA and bitC). Multilocus sequence typing (MLST) revealed that 79.4% of the isolates belonged to only three STs, namely ST52 (41.4%), ST8 (12.1%), and ST112 (25.9%) which have been observed in other European countries before. Another 24 isolates belonged to twelve new STs (ST113-118, ST120-123, ST131, and ST193). The temporal distribution of STs revealed the presence of new STs as well as the regular presence of ST52 over three decades (1990s-2000s). The proportion of strains that showed resistance to both tiamulin und valnemulin (39.1%) varied considerably among the most frequent STs ranging from 0% (0/14 isolates resistant) in ST8 isolates to 46.7% (14/30), 52.1% (25/48), and 85.7% (6/7) in isolates belonging to ST112, ST52, and ST114, respectively. All hemolysin genes as well as the iron-related gene ftnA and the OMP gene bhlp29.7 were regularly present in the isolates, while the OMP genes bhlp17.6 and bhmp39h could not be detected. Sequence analysis of hemolysin genes of selected isolates revealed co evolution of tlyB, BHWA1_RS02885, BHWA1_RS09085, and BHWA1_RS02195 with the core genome and suggested independent evolution of tlyA, tlyC, and hlyA. Our data indicate that in Germany, swine dysentery might be caused by a limited number of B. hyodysenteriae clonal groups. Major STs (ST8, ST52, and ST112) are shared with other countries in Europe suggesting a possible role of the European intra Community trade of pigs in the dissemination of certain clones. The identification of several novel STs, some of which are single or double locus variants of ST52, may on the other hand hint towards an ongoing diversification of the pathogen in the studied area. The linkage of pleuromutilin susceptibility and sequence type of an isolate might reflect a clonal expansion of the underlying resistance mechanism, namely mutations in the ribosomal RNA genes. A linkage between single virulence-associated genes (VAGs) or even VAG patterns and the phylogenetic background of the isolates could not be established, since almost all VAGs were regularly present in the isolates. PMID- 29324786 TI - Controlled potential electro-oxidation of genomic DNA. AB - Exposure of mammalian cells to oxidative stress can result in DNA damage that adversely affects many cell processes. Lack of dependable DNA damage reference materials and standardized measurement methods, despite many case-control studies hampers the wider recognition of the link between oxidatively degraded DNA and disease risk. We used bulk electrolysis in an electrochemical system and gas chromatographic mass spectrometric analysis (GC/MS/MS) to control and measure, respectively, the effect of electrochemically produced reactive oxygen species on calf thymus DNA (ct-DNA). DNA was electro-oxidized for 1 h at four fixed oxidizing potentials (E = 0.5 V, 1.0 V, 1.5 V and 2 V (vs Ag/AgCl)) using a high surface area boron-doped diamond (BDD) working electrode (WE) and the resulting DNA damage in the form of oxidatively-modified DNA lesions was measured using GC/MS/MS. We have shown that there are two distinct base lesion formation modes in the explored electrode potential range, corresponding to 0.5 V < E < 1.5 V and E > 1.5 V. Amounts of all four purine lesions were close to a negative control levels up to E = 1.5 V with evidence suggesting higher levels at the lowest potential of this range (E = 0.5 V). A rapid increase in all base lesion yields was measured when ct-DNA was exposed at E = 2 V, the potential at which hydroxyl radicals were efficiently produced by the BDD electrode. The present results demonstrate that controlled potential preparative electrooxidation of double stranded DNA can be used to purposely increase the levels of oxidatively modified DNA lesions in discrete samples. It is envisioned that these DNA samples may potentially serve as analytical control or quality assurance reference materials for the determination of oxidatively induced DNA damage. PMID- 29324787 TI - Association of sex hormones with physical, laboratory, and imaging markers of anthropometry in men and women from the general population. AB - OBJECTIVES: The aim of this study was to evaluate the association of sex hormones with anthropometry in a large population-based cohort, with liquid chromatography mass spectrometry (LCMS)-based sex hormone measurements and imaging markers. STUDY DESIGN/MAIN OUTCOME MEASURES: Cross-sectional data from 957 men and women from the population-based Study of Health in Pomerania (SHIP) were used. Associations of a comprehensive panel of LCMS-measured sex hormones with anthropometric parameters, laboratory, and imaging markers were analyzed in multivariable regression models for the full sample and stratified by sex. Sex hormone measures included total testosterone (TT), free testosterone (fT), estrone and estradiol, androstenedione (ASD), dehydroepiandrosterone sulfate (DHEAS), and sex hormone-binding globulin (SHBG). Domains of anthropometry included physical measures (body-mass-index (BMI), waist circumference, waist-to height-ratio, waist-to-hip-ratio, and hip circumference), laboratory measures of adipokines (leptin and vaspin), and magnet resonance imaging-based measures (visceral and subcutaneous adipose tissue). RESULTS: In men, inverse associations between all considered anthropometric parameters with TT were found: BMI (beta coefficient, standard error (SE): -0.159, 0.037), waist-circumference (beta coefficient, SE: -0.892, 0.292), subcutaneous adipose tissue (beta-coefficient, SE: -0.156, 0.023), and leptin (beta-coefficient, SE: -0.046, 0.009). In women TT (beta-coefficient, SE: 1.356, 0.615) and estrone (beta-coefficient, SE: 0.014, 0.005) were positively associated with BMI. In analyses of variance, BMI and leptin were inversely associated with TT, ASD, and DHEAS in men, but positively associated with estrone. In women, BMI and leptin were positively associated with all sex hormones. CONCLUSION: The present population-based study confirmed and extended previously reported sex-specific associations between sex hormones and various anthropometric markers of overweight and obesity. PMID- 29324788 TI - Esrp1 is a marker of mouse fetal germ cells and differentially expressed during spermatogenesis. AB - ESRP1 regulates alternative splicing, producing multiple transcripts from its target genes in epithelial tissues. It is upregulated during mesenchymal to epithelial transition associated with reprogramming of fibroblasts to iPS cells and has been linked to pluripotency. Mouse fetal germ cells are the founders of the adult gonadal lineages and we found that Esrp1 mRNA was expressed in both male and female germ cells but not in gonadal somatic cells at various stages of gonadal development (E12.5-E15.5). In the postnatal testis, Esrp1 mRNA was highly expressed in isolated cell preparations enriched for spermatogonia but expressed at lower levels in those enriched for pachytene spermatocytes and round spermatids. Co-labelling experiments with PLZF and c-KIT showed that ESRP1 was localized to nuclei of both Type A and B spermatogonia in a speckled pattern, but was not detected in SOX9+ somatic Sertoli cells. No co-localization with the nuclear speckle marker, SC35, which has been associated with post-transcriptional splicing, was observed, suggesting that ESRP1 may be associated with co transcriptional splicing or have other functions. RNA interference mediated knockdown of Esrp1 expression in the seminoma-derived Tcam-2 cell line demonstrated that ESRP1 regulates alternative splicing of mRNAs in a non epithelial cell germ cell tumour cell line. PMID- 29324789 TI - An L213A variant of beta-glycosidase from Sulfolobus solfataricus with increased alpha-L-arabinofuranosidase activity converts ginsenoside Rc to compound K. AB - Compound K (C-K) is a crucial pharmaceutical and cosmetic component because of disease prevention and skin anti-aging effects. For industrial application of this active compound, the protopanaxadiol (PPD)-type ginsenosides should be transformed to C-K. beta-Glycosidase from Sulfolobus solfataricus has been reported as an efficient C-K-producing enzyme, using glycosylated PPD-type ginsenosides as substrates. beta-Glycosidase from S. solfataricus can hydrolyze beta-d-glucopyranoside in ginsenosides Rc, C-Mc1, and C-Mc, but not alpha-l arabinofuranoside in these ginsenosides. To determine candidate residues involved in alpha-l-arabinofuranosidase activity, compound Mc (C-Mc) was docking to beta glycosidase from S. solfataricus in homology model and sequence was aligned with beta-glycosidase from Pyrococcus furiosus that has alpha-l-arabinofuranosidase activity. A L213A variant beta-glycosidase with increased alpha-l arabinofuranosidase activity was selected by substitution of other amino acids for candidate residues. The increased alpha-l-arabinofuranosidase activity of the L213A variant was confirmed through the determination of substrate specificity, change in binding energy, transformation pathway, and C-K production from ginsenosides Rc and C-Mc. The L213A variant beta-glycosidase catalyzed the conversion of Rc to Rd by hydrolyzing alpha-l-arabinofuranoside linked to Rc, whereas the wild-type beta-glycosidase did not. The variant enzyme converted ginsenosides Rc and C-Mc into C-K with molar conversions of 97%, which were 1.5- and 2-fold higher, respectively, than those of the wild-type enzyme. Therefore, protein engineering is a useful tool for enhancing the hydrolytic activity on specific glycoside linked to ginsenosides. PMID- 29324790 TI - Frog size on continental islands of the coast of Rio de Janeiro and the generality of the Island Rule. AB - Island Rule postulated that individuals on islands tend to dwarfism when individuals from mainland populations are large and to gigantism when mainland populations present small individuals. There has been much discussion about this rule, but only few studies were carried out aiming to reveal this pattern for anurans. Our study focused on measuring the size of individuals on islands and to find a possible pattern of size modification for insular anurans. Individuals were collected on continental islands, measured and compared to mainland populations. We selected four species with different natural history aspects during these analyses. Island parameters were compared to size of individuals in order to find an explanation to size modification. Three of the four species presented size shifting on islands. Ololygon trapicheiroi and Adenomera marmorata showed dwarfism, Boana albomarginata showed gigantism and in Thoropa miliaris there was no evident size modification. Allometric analysis also revealed differential modification, which might be a result of different selective pressures on islands in respect of mainland populations. Regression model explained most of the size modification in B. albomarginata, but not for the other species. Our results indicate that previous assumptions, usually proposed for mammals from older islands, do not fit to the anurans studied here. We support the assumption that size modification on islands are population-specific. Hence, in B. albomarginata some factor associated to competition, living area and isolation time might likely be responsible for gigantism on islands. PMID- 29324791 TI - Sediment biomarkers elucidate the Holocene ontogeny of a shallow lake. AB - We carried out geochemical analyses on a sediment core from Lake Harris, Florida (USA) to identify sources of organic matter to the sediment throughout the Holocene, and relate changes in those sources to shifts in past climate and environmental conditions. We hypothesized that the sources of organic matter changed in response to regional hydrologic shifts following de-glaciation, and to human population expansion in the state during the 20th century. Hydroclimate shifts in Florida were related to: 1) a steady rise in relative sea level and the fresh water table that began in the early Holocene, 2) wetland formation and expansion ca. 5,000 cal yrs BP, and 3) the onset of the modern El Nino (ENSO) cycle ~3,000 cal yrs BP. Stratigraphic changes in sediment variables from Lake Harris reflect each of these hydroclimate periods. Early in the Holocene, Lake Harris was a marsh-like system in a relatively dry, open-prairie environment. Organic sediments deposited at that time were derived largely from terrestrial sources, as inferred from high TOC/TN ratios, a dominance of longer-chain of n alkanes (n-C29-31), relatively negative organic carbon isotope values (delta13CTOC), and low biogenic silica concentrations. In the middle Holocene, a positive shift in delta13CTOC coincided with the onset of wetter conditions in Florida. Submerged macrophyte biomarkers (n-C21-23) dominated, and during that period bulk organic carbon isotope values were most similar to delta13C values of mid-chain-length n-alkanes. In the late Holocene, delta13CTOC values declined, CaCO3 levels decreased to trace amounts, organic carbon concentrations increased and diatom biogenic silica concentrations increased from 10 to 120 mg g-1. Around 2,900 cal yrs BP, the effects of ENSO intensified and many Florida lakes deepened to their current limnetic state. Concentrations of algal and cyanobacterial biomarkers in the Lake Harris core increased by orders of magnitude after about AD 1940, in response to human-induced eutrophication, an inference supported by values of delta15N that fluctuate around zero. PMID- 29324792 TI - Critical evaluation of colon submucosal microdialysis in awake, mobile rats. AB - Sensors able to record large bowel physiology and biochemistry in situ in awake rodents are lacking. Microdialysis is a mini-invasive technique that may be utilized to continuously deliver or recover low-molecular substances from various tissues. In this experiment we evaluated the feasibility of in vivo microdialysis to monitor extracellular fluid chemistry in the descending colon submucosa of conscious, freely moving rodents. Following surgical implantation of a microdialysis probe, male Wistar rats were housed in metabolic cages where they were analgized and clinically followed for four days with free access to standard diet and water. To assess local microcirculation and probe function, glucose, lactate, glucose-to-lactate ratio and urea clearance were determined in the dialysates from the three postoperative days with focus on the final 24-h period. In an attempt to mitigate the expected tissue inflammatory response, one group of animals had the catheters perfused with 5-aminosalicylic acid-enriched medium with final concentration 1 MUmol/L. For verification of probe position and the assessment of the surrounding foreign body reaction, standard histological and immunohistochemical methods were employed. Microdialysis of rat gut is associated with considerable technical challenges that may lead to the loss of probe function and high drop-out rate. In this setting, limited data did not allow to draw any firm conclusion regarding local anti-inflammatory effectiveness of 5 aminosalicylic acid perfusion. Although intestinal microdialysis may be suitable for larger anesthetized animals, low reproducibility of the presented method compromises its routine experimental use in awake and freely moving small-sized rodents. PMID- 29324793 TI - Phylogeography of screaming hairy armadillo Chaetophractus vellerosus: Successive disjunctions and extinctions due to cyclical climatic changes in southern South America. AB - Little is known about phylogeography of armadillo species native to southern South America. In this study we describe the phylogeography of the screaming hairy armadillo Chaetophractus vellerosus, discuss previous hypothesis about the origin of its disjunct distribution and propose an alternative one, based on novel information on genetic variability. Variation of partial sequences of mitochondrial DNA Control Region (CR) from 73 individuals from 23 localities were analyzed to carry out a phylogeographic analysis using neutrality tests, mismatch distribution, median-joining (MJ) network and paleontological records. We found 17 polymorphic sites resulting in 15 haplotypes. Two new geographic records that expand known distribution of the species are presented; one of them links the distributions of recently synonimized species C. nationi and C. vellerosus. Screaming hairy armadillo phylogeographic pattern can be addressed as category V of Avise: common widespread linages plus closely related lineages confined to one or a few nearby locales each. The older linages are distributed in the north central area of the species distribution range in Argentina (i.e. ancestral area of distribution). C. vellerosus seems to be a low vagility species that expanded, and probably is expanding, its distribution range while presents signs of genetic structuring in central areas. To explain the disjunct distribution, a hypothesis of extinction of the species in intermediate areas due to quaternary climatic shift to more humid conditions was proposed. We offer an alternative explanation: long distance colonization, based on null genetic variability, paleontological record and evidence of alternance of cold/arid and temperate/humid climatic periods during the last million years in southern South America. PMID- 29324794 TI - Real-time positioning in logging: Effects of forest stand characteristics, topography, and line-of-sight obstructions on GNSS-RF transponder accuracy and radio signal propagation. AB - Real-time positioning on mobile devices using global navigation satellite system (GNSS) technology paired with radio frequency (RF) transmission (GNSS-RF) may help to improve safety on logging operations by increasing situational awareness. However, GNSS positional accuracy for ground workers in motion may be reduced by multipath error, satellite signal obstruction, or other factors. Radio propagation of GNSS locations may also be impacted due to line-of-sight (LOS) obstruction in remote, forested areas. The objective of this study was to characterize the effects of forest stand characteristics, topography, and other LOS obstructions on the GNSS accuracy and radio signal propagation quality of multiple Raveon Atlas PT GNSS-RF transponders functioning as a network in a range of forest conditions. Because most previous research with GNSS in forestry has focused on stationary units, we chose to analyze units in motion by evaluating the time-to-signal accuracy of geofence crossings in 21 randomly-selected stands on the University of Idaho Experimental Forest. Specifically, we studied the effects of forest stand characteristics, topography, and LOS obstructions on (1) the odds of missed GNSS-RF signals, (2) the root mean squared error (RMSE) of Atlas PTs, and (3) the time-to-signal accuracy of safety geofence crossings in forested environments. Mixed-effects models used to analyze the data showed that stand characteristics, topography, and obstructions in the LOS affected the odds of missed radio signals while stand variables alone affected RMSE. Both stand characteristics and topography affected the accuracy of geofence alerts. PMID- 29324795 TI - Nanodiamonds facilitate killing of intracellular uropathogenic E. coli in an in vitro model of urinary tract infection pathogenesis. AB - About 25-44% of women will experience at least one episode of recurrent UTI and the causative agent in over 70% of UTI cases is uropathogenic Escherichia coli (UPEC). UPEC cause recurrent UTI by evading the bladder's innate immune system through internalization into the bladder epithelium where antibiotics cannot reach or be effective. Thus, it is important to develop novel therapeutics to eliminate these intracellular pathogens. Nanodiamonds (NDs) are biocompatible nanomaterials that serve as promising candidates for targeted therapeutic applications. The objective of the current study was to investigate if 6 or 25 nm NDs can kill extracellular and intracellular UPEC in infected bladder cells. We utilized the human bladder epithelial cell line, T24, and an invasive strain of UPEC that causes recurrent UTI. We found that acid-purified 6 nm NDs displayed greater antibacterial properties towards UPEC than 25 nm NDs (11.5% vs 94.2% CFU/mL at 100 MUg/mL of 6 and 25 nm, respectively; P<0.001). Furthermore, 6 nm NDs were better than 25 nm NDs in reducing the number of UPEC internalized in T24 bladder cells (46.1% vs 81.1% CFU/mL at 100 MUg/mL of 6 and 25 nm, respectively; P<0.01). Our studies demonstrate that 6 nm NDs interacted with T24 bladder cells in a dose-dependent manner and were internalized in 2 hours through an actin dependent mechanism. Finally, internalization of NDs was required for reducing the number of intracellular UPEC in T24 bladder cells. These findings suggest that 6 nm NDs are promising candidates to treat recurrent UTIs. PMID- 29324796 TI - Quercetin and aconitine synergistically induces the human cervical carcinoma HeLa cell apoptosis via endoplasmic reticulum (ER) stress pathway. AB - Up till now, studies have not been conducted on how the combination of Quercetin (Q), Aconitine (A) and apoptosis induction affects human cervical carcinoma HeLa cells. The result of our findings shows that the combination of Q and A (QA) is capable of synergistically inhibiting the proliferation of HeLa cells in a number of concentrations. QA synergistically inhibits the proliferation of MDR1 gene in the HeLa cells. It is concluded based on our result that QA induces apoptosis and ER stress just as QA-induced ER stress pathway may mediate apoptosis by upregulating mRNA expression levels of eIF2alpha, ATF4, IRE1, XBP1, ATF6, PERK and CHOP in the HeLa cells. The up-regulating of mRNA expression level of GRP78 and activation of UPR are a molecular basis of QA-induced ER stress. PMID- 29324799 TI - Comprehensive untargeted metabolomics of Lychnnophorinae subtribe (Asteraceae: Vernonieae) in a phylogenetic context. AB - Members of the subtribe Lychnophorinae occur mostly within the Cerrado domain of the Brazilian Central Plateau. The relationships between its 11 genera, as well as between Lychnophorinae and other subtribes belonging to the tribe Vernonieae, have recently been investigated upon a phylogeny based on molecular and morphological data. We report the use of a comprehensive untargeted metabolomics approach, combining HPLC-MS and GC-MS data, followed by multivariate analyses aiming to assess the congruence between metabolomics data and the phylogenetic hypothesis, as well as its potential as a chemotaxonomic tool. We analyzed 78 species by UHPLC-MS and GC-MS in both positive and negative ionization modes. The metabolic profiles obtained for these species were treated in MetAlign and in MSClust and the matrices generated were used in SIMCA for hierarchical cluster analyses, principal component analyses and orthogonal partial least square discriminant analysis. The results showed that metabolomic analyses are mostly congruent with the phylogenetic hypothesis especially at lower taxonomic levels (Lychnophora or Eremanthus). Our results confirm that data generated using metabolomics provide evidence for chemotaxonomical studies, especially for phylogenetic inference of the Lychnophorinae subtribe and insight into the evolution of the secondary metabolites of this group. PMID- 29324797 TI - Sex-dependent impact of early-life stress and adult immobilization in the attribution of incentive salience in rats. AB - Early life stress (ELS) induces long-term effects in later functioning and interacts with further exposure to other stressors in adulthood to shape our responsiveness to reward-related cues. The attribution of incentive salience to food-related cues may be modulated by previous and current exposures to stressors in a sex-dependent manner. We hypothesized from human data that exposure to a traumatic (severe) adult stressor will decrease the attribution of incentive salience to reward-associated cues, especially in females, because these effects are modulated by previous ELS. To study these factors in Long-Evans rats, we used as an ELS model of restriction of nesting material and concurrently evaluated maternal care. In adulthood, the offspring of both sexes were exposed to acute immobilization (IMO), and several days after, a Pavlovian conditioning procedure was used to assess the incentive salience of food-related cues. Some rats developed more attraction to the cue predictive of reward (sign-tracking) and others were attracted to the location of the reward itself, the food-magazine (goal-tracking). Several dopaminergic markers were evaluated by in situ hybridization. The results showed that ELS increased maternal care and decreased body weight gain (only in females). Regarding incentive salience, in absolute control animals, females presented slightly greater sign-tracking behavior than males. Non-ELS male rats exposed to IMO showed a bias towards goal-tracking, whereas in females, IMO produced a bias towards sign-tracking. Animals of both sexes not exposed to IMO displayed an intermediate phenotype. ELS in IMO-treated females was able to reduce sign-tracking and decrease tyrosine hydroxylase expression in the ventral tegmental area and dopamine D1 receptor expression in the accumbens shell. Although the predicted greater decrease in females in sign tracking after IMO exposure was not corroborated by the data, the results highlight the idea that sex is an important factor in the study of the long-term impact of early and adult stressors. PMID- 29324798 TI - Qualitative metabolomics profiling of serum and bile from dogs with gallbladder mucocele formation. AB - Mucocele formation is characterized by secretion of abnormally thick mucus by the gallbladder epithelium of dogs that may cause obstruction of the bile duct or rupture of the gallbladder. The disease is increasingly recognized and is associated with a high morbidity and mortality. The cause of gallbladder mucocele formation in dogs is unknown. There is a strong breed predisposition and affected dogs have a high incidence of concurrent endocrinopathy or hyperlipidemia. These observations suggest a significant influence of both genetic and metabolic factors on disease pathogenesis. In this study, we investigated a theory that mucocele formation is associated with a syndrome of metabolic disruption. We surmised that a global, untargeted metabolomics approach could provide unique insight into the systemic pathogenesis of gallbladder mucocele formation and identify specific compounds as candidate biomarkers or treatment targets. Moreover, concurrent examination of the serum and hepatic duct bile metabolome would enable the construction of mechanism-based theories or identification of specific compounds responsible for altered function of the gallbladder epithelium. Abnormalities observed in dogs with gallbladder mucocele formation, including a 33-fold decrease in serum adenosine 5'-monophosphate (AMP), lower quantities of precursors required for synthesis of energy transporting nucleotides, and increases in citric acid cycle intermediates, suggest excess metabolic energy and a carbon surplus. Altered quantities of compounds involved in protein translation and RNA turnover, together with accumulation of gamma glutamylated and N-acetylated amino acids in serum suggest abnormal regulation of protein and amino acid metabolism. Increases in lathosterol and 7alpha hydroxycholesterol suggest a primary increase in cholesterol synthesis and diversion to bile acid formation. A number of specific biomarker compounds were identified for their ability to distinguish between control dogs and those that formed a gallbladder mucocele. Particularly noteworthy was a significant decrease in quantity of biologically active compounds that stimulate biliary ductal fluid secretion including adenosine, cAMP, taurolithocholic acid, and taurocholic acid. These findings support the presence of significant metabolic disruption in dogs with mucocele formation. A targeted, quantitative analysis of the identified serum biomarkers is warranted to determine their utility for diagnosis of this disease. Finally, repletion of compounds whose biological activity normally promotes biliary ductal secretion should be examined for any therapeutic impact for resolution or prevention of mucocele formation. PMID- 29324801 TI - Clinical characteristics and registry-validated extended pedigrees of germline TP53 mutation carriers in Denmark. AB - INTRODUCTION: TP53 mutation carrier (Li-Fraumeni Syndrome, LFS) cohort studies often suffer from lack of extensive pedigree exploration. METHODS: We performed a nation-wide exploration of TP53 mutation carrier families identified through all clinical genetics departments in Denmark. Pedigrees were expanded and verified using unique national person identification, cancer, cause of death, pathology, and church registries. RESULTS: We identified 30 confirmed, six obligate and 14 assumed carriers in 15 families harboring 14 different mutations, including five novel and three de novo germline mutations. All but two (96%) developed cancer by age 54 years [mean debut age; 29.1 y., median 33.0 y., n = 26 (17F, 9M), range 1 54 y]]. Cancer was the primary cause of all deaths [average age at death; 34.5 years]. Two tumors were identified through registry data alone. Two independent families harbored novel c.80delC mutations shown to be related through an ancestor born in 1907. This exhaustive national collection yielded markedly fewer TP53 mutation carriers than the 300-1,100 expected based on estimated background population frequencies. CONCLUSION: Germline TP53 mutations in Denmark are likely to be drastically underdiagnosed despite their severe phenotype. Following recent advances in surveillance options of LFS patients, lack of pre-symptomatic testing may lead to the mismanagement of some individuals. PMID- 29324800 TI - Hepcidin deficiency and iron deficiency do not alter tuberculosis susceptibility in a murine M.tb infection model. AB - Tuberculosis (TB), caused by the macrophage-tropic pathogen Mycobacterium tuberculosis (M.tb) is a highly prevalent infectious disease. Since an immune correlate of protection or effective vaccine have yet to be found, continued research into host-pathogen interactions is important. Previous literature reports links between host iron status and disease outcome for many infections, including TB. For some extracellular bacteria, the iron regulatory hormone hepcidin is essential for protection against infection. Here, we investigated hepcidin (encoded by Hamp1) in the context of murine M.tb infection. Female C57BL/6 mice were infected with M.tb Erdman via aerosol. Hepatic expression of iron-responsive genes was measured by qRT-PCR and bacterial burden determined in organ homogenates. We found that hepatic Hamp1 mRNA levels decreased post infection, and correlated with a marker of BMP/SMAD signalling pathways. Next, we tested the effect of Hamp1 deletion, and low iron diets, on M.tb infection. Hamp1 knockout mice did not have a significantly altered M.tb mycobacterial load in either the lungs or spleen. Up to 10 weeks of dietary iron restriction did not robustly affect disease outcome despite causing iron deficiency anaemia. Taken together, our data indicate that unlike with many other infections, hepcidin is decreased following M.tb infection, and show that hepcidin ablation does not influence M.tb growth in vivo. Furthermore, because even severe iron deficiency did not affect M.tb mycobacterial load, we suggest that the mechanisms M.tb uses to scavenge iron from the host must be extremely efficient, and may therefore represent potential targets for drugs and vaccines. PMID- 29324802 TI - Prognostic value of liver stiffness measurement for the liver-related surgical outcomes of patients under hepatic resection: A meta-analysis. AB - BACKGROUND: Previous studies have discussed the liver stiffness measurement (LSM) performance on predicting liver-related surgical outcomes for patients of hepatocellular carcinoma (HCC) under hepatic resection, yet there is much variation in reporting and consistency of findings. Therefore, we report a meta analysis on this issue. METHODS: We comprehensively searched PubMed, Embase, and Web of science to find the eligible cohort studies. The pooled Odds Ratios (OR) and 95% confidence intervals (CIs) were calculated to evaluate effect. The weighted mean LSM value was calculated as the optimal LSM cut-off value among studies. RESULTS: 12 prospective cohort studies and one retrospective cohort study, including a total of 1942 cases were identified. The pooled results showed that preoperative LSM is significantly associated with the occurrence of overall postoperative complications (OR 1.76, 95% CI 1.46-2.11). In addition, a weighted mean LSM value of 14.2 kPa and 11.3KPa were suggested as the optimal LSM cut-off value reference using transient elastoqraphy (TE) for predicting overall postoperative complications in Asia countries and European countries, respectively. CONCLUSIONS: Preoperative LSM should be taken into account cautiously in the management of patients undergoing hepatectomy of HCC. Future studies could focus on setting a prognostic model integrated with LSM in predicting post-hepatectomy outcomes. PMID- 29324803 TI - Genetic dissection of the relationships between grain yield components by genome wide association mapping in a collection of tetraploid wheats. AB - Increasing grain yield potential in wheat has been a major target of most breeding programs. Genetic advance has been frequently hindered by negative correlations among yield components that have been often observed in segregant populations and germplasm collections. A tetraploid wheat collection was evaluated in seven environments and genotyped with a 90K SNP assay to identify major and stable quantitative trait loci (QTL) for grain yield per spike (GYS), kernel number per spike (KNS) and thousand-kernel weight (TKW), and to analyse the genetic relationships between the yield components at QTL level. The genome wide association analysis detected eight, eleven and ten QTL for KNS, TKW and GYS, respectively, significant in at least three environments or two environments and the mean across environments. Most of the QTL for TKW and KNS were found located in different marker intervals, indicating that they are genetically controlled independently by each other. Out of eight KNS QTL, three were associated to significant increases of GYS, while the increased grain number of five additional QTL was completely or partially compensated by decreases in grain weight, thus producing no or reduced effects on GYS. Similarly, four consistent and five suggestive TKW QTL resulted in visible increase of GYS, while seven additional QTL were associated to reduced effects in grain number and no effects on GYS. Our results showed that QTL analysis for detecting TKW or KNS alleles useful for improving grain yield potential should consider the pleiotropic effects of the QTL or the association to other QTLs. PMID- 29324804 TI - Genome-wide identification, characterization and expression profile analysis of expansins gene family in sugarcane (Saccharum spp.). AB - Expansins refer to a family of closely related non-enzymatic proteins found in the plant cell wall that are involved in the cell wall loosening. In addition, expansins appear to be involved in different physiological and environmental responses in plants such as leaf and stem initiation and growth, stomata opening and closing, reproduction, ripening and stress tolerance. Sugarcane (Saccharum spp.) is one of the main crops grown worldwide. Lignocellulosic biomass from sugarcane is one of the most promising raw materials for the ethanol industry. However, the efficient use of lignocellulosic biomass requires the optimization of several steps, including the access of some enzymes to the hemicellulosic matrix. The addition of expansins in an enzymatic cocktail or their genetic manipulation could drastically improve the saccharification process of feedstock biomass by weakening the hydrogen bonds between polysaccharides present in plant cell walls. In this study, the expansin gene family in sugarcane was identified and characterized by in silico analysis. Ninety two putative expansins in sugarcane (SacEXPs) were categorized in three subfamilies after phylogenetic analysis. The expression profile of some expansin genes in leaves of sugarcane in different developmental stages was also investigated. This study intended to provide suitable expansin targets for genetic manipulation of sugarcane aiming at biomass and yield improvement. PMID- 29324805 TI - Intranasal vaccination with M2e5x virus-like particles induces humoral and cellular immune responses conferring cross-protection against heterosubtypic influenza viruses. AB - Current influenza vaccines do not provide broad cross-protection. Here, we report that intranasal vaccination with virus-like particles containing the highly conserved multiple ectodomains of matrix protein 2 (M2e5x VLP) of influenza virus induces broad cross-protection by M2-specific humoral and cellular immune responses. M2e5x VLP intranasal vaccination prevented severe weight loss, attenuated inflammatory cytokines and cellular infiltrates, and lowered viral loads, and induced germinal center phenotypic B and plasma cells. In addition, depletion studies demonstrate the protective roles of CD4 and CD8 T cells induced by M2e5x VLP intranasal vaccination. Thus, this study provides evidence that mucosal delivery of M2e5x VLP vaccine provides cross-protection by inducing humoral and cellular immune responses. PMID- 29324806 TI - Immunocompetent host develops mild intestinal inflammation in acute infection with Toxoplasma gondii. AB - Toxoplasma gondii (T. gondii) is the causative agent of toxoplasmosis, common zoonosis among vertebrates and high incidence worldwide. During the infection, the parasite needs to transpose the intestinal barrier to spread throughout the body, which may be a trigger for an inflammatory reaction. This work evaluated the inflammatory alterations of early T. gondii infection in peripheral blood cells, in the mesenteric microcirculation, and small intestinal tissue by measurement of MPO (myeloperoxidase) activity and NO (nitric oxide) level in rats. Animals were randomly assigned into control group (CG) that received saline orally and groups infected with 5,000 oocysts for 6 (G6), 12 (G12), 24 (G24), 48 (G48) and 72 hours (G72). Blood samples were collected for total and differential leukocyte count. Intravital microscopy was performed in the mesentery to evaluate rolling and adhesion of leukocytes. After euthanasia, 0.5cm of the duodenum, jejunum and ileum were collected for the determination of MPO activity, NO level and PCR to identify the parasite DNA and also the mesentery were collected to perform immunohistochemistry on frozen sections to quantify adhesion molecules ICAM-1, PECAM-1 and P-Selectin. The parasite DNA was identified in all infected groups and there was an increase in leukocytes in the peripheral blood and in expression of ICAM-1 and PECAM-1 in G6 and G12, however, the expression of P selectin was reduced in G12. Leukocytes are in rolling process during the first 12 hours and they are adhered at 24 hours post-infection. The activity of MPO increased in the duodenum at 12 hours, and NO increased in the jejunum in G72 and ileum in G24, G48 and G72. Our study demonstrated that T. gondii initiates the infection precociously (at 6 hours) leading to a systemic activation of innate immune response resulting in mild inflammation in a less susceptible experimental model. PMID- 29324807 TI - VEGF may contribute to macrophage recruitment and M2 polarization in the decidua. AB - It is increasingly evident that cytokines and growth factors produced in the decidua play a pivotal role in the regulation of the local immune microenvironment and the establishment of pregnancy. One of the major growth factors produced in the decidua is vascular endothelial growth factor (VEGF), which acts not only on endothelial cells, but also on multiple other cell types, including macrophages. We sought to determine whether decidua-derived VEGF affects macrophage recruitment and polarization using human endometrial/decidual tissue samples, primary human endometrial stromal cells (ESCs), and the human monocyte cell line THP1. In situ hybridization was used for assessment of local VEGF expression and immunohistochemistry was used for identification and localization of CD68-positive endometrial macrophages. Macrophage migration in culture was assessed using a transwell migration assay, and the various M1/M2 phenotypic markers and VEGF expression were assessed using quantitative real-time PCR (qRT-PCR). We found dramatic increases in both VEGF levels and macrophage numbers in the decidua during early pregnancy compared to the secretory phase endometrium (non-pregnant), with a significant increase in M2 macrophage markers, suggesting that M2 is the predominant macrophage phenotype in the decidua. However, decidual samples from preeclamptic pregnancies showed a significant shift in macrophage phenotype markers, with upregulation of M1 and downregulation of M2 markers. In THP1 cultures, VEGF treatment significantly enhanced macrophage migration and induced M1 macrophages to shift to an M2 phenotype. Moreover, treatment with conditioned media from decidualized ESCs induced changes in macrophage migration and polarization similar to that of VEGF treatment. These effects were abrogated by the addition of a potent VEGF inhibitor. Together these results suggest that decidual VEGF plays a significant role in macrophage recruitment and M2 polarization, and that inhibition of VEGF signaling may contribute to the shift in macrophage polarity observed in different pregnancy disorders, including preeclampsia. PMID- 29324809 TI - Temporal trends in arthropod abundances after the transition to organic farming in paddy fields. AB - Organic farming aims to reduce the effect on the ecosystem and enhance biodiversity in agricultural areas, but the long-term effectiveness of its application is unclear. Assessments have rarely included various taxonomic groups with different ecological and economic roles. In paddy fields with different numbers of years elapsed since the transition from conventional to organic farming, we investigated changes in the abundance of insect pests, generalist predators, and species of conservation concern. The abundance of various arthropods exhibited diverse trends with respect to years elapsed since the transition to organic farming. Larval lepidopterans, Tetragnatha spiders, and some planthoppers and stink bugs showed non-linear increases over time, eventually reaching saturation, such as the abundance increasing for several years and then becoming stable after 10 years. This pattern can be explained by the effects of residual pesticides, the lag time of soil mineralization, and dispersal limitation. A damselfly (Ischnura asiatica) did not show a particular trend over time, probably due to its rapid immigration from source habitats. Unexpectedly, both planthoppers and some leafhoppers exhibited gradual decreases over time. As their abundances were negatively related to the abundance of Tetragnatha spiders, increased predation by natural enemies might gradually decrease these insect populations. These results suggest that the consideration of time-dependent responses of organisms is essential for the evaluation of the costs and benefits of organic farming, and such evaluations could provide a basis for guidelines regarding the length of time for organic farming to restore biodiversity or the economic subsidy needed to compensate for pest damage. PMID- 29324808 TI - A novel prescription pedometer-assisted walking intervention and weight management for Chinese occupational population. AB - BACKGROUND AND AIM: Information technology has been previously used for the research and practice of health promotion. Appropriate and effective health promotion methods used by professional groups remain to be investigated. This study aimed to assess the feasibility and effectiveness of a weight management program among the Chinese occupational population using and a novel information technology exercise prescription. STUDY DESIGN AND PARTICIPANTS: A 3-month open, self-monitored intervention trial, involving individualized pedometer-assisted exercise prescription and a one-time targeted dietary guidance prior to exercise was conducted on the Chinese occupational population aged 18-65 years in China from 2015 to 2016. Data were collected from March 2015 to May 2016 and analyzed from June 2016 to August 2016. Participants were also asked to synchronize exercise data of the pedometer to the Internet-based Health System Center daily (at least weekly), by connecting to the personal computer (PC) using a USB cable or via Bluetooth. RESULTS: Eligible participants included 802 Chinese occupational persons, and 718 of them followed exercise interventions with 89.5% (718/802) adherence to the exercise programs. Of them, 688 participants completed the program with 85.8% (688/802) adherence to the exercise program and their data were analyzed. Weight decreased by 2.2% among all overweight/obese participants, with 1.8% reduction in waist circumference and 3.3% reduction in body fat percentage (p< 0.001). Weight and body fat percentage in normal-weight individuals decreased by 0.7% and 2.5%, respectively (p < 0.01). A weight gain of 1.0% was observed in all underweight participants (p< 0.05), and 68.2% (208/305) of overweight/obese participants experienced weight loss, with an average reduction of 3.5%, with 20.2% (42/208) of them achieving weight loss >=5%. Blood pressure and fasting serum glucose decreased significantly in both the overweight/obese and the normal-weight individuals (p < 0.05). The incidence of hypertension was significantly lower and lifestyle behavior significantly improved (p < 0.05). CONCLUSION: The prescription pedometer-assisted walking intervention can effectively improve exercise adherence and manage weight. This approach was also effective in controlling the risk factors of weight-related chronic diseases. TRIAL REGISTRATION: Chinese Clinical Trial Registry (ChiCTR) ChiCTR-OOh-16010229. PMID- 29324810 TI - Course of SP-D, YKL-40, CCL18 and CA 15-3 in adult patients hospitalised with community-acquired pneumonia and their association with disease severity and aetiology: A post-hoc analysis. AB - BACKGROUND AND AIM: SP-D, YKL-40, CCL18 and CA 15-3 are pulmonary markers that have been extensively investigated in different chronic pulmonary diseases. However, in acute pulmonary diseases, such as community-acquired pneumonia (CAP), little is known about the course of these markers and their relationship with the aetiological agent. The aim of this study was to investigate the course of these four markers in CAP and to study influence of disease severity, aetiology and antibiotic use prior to admission on their course. METHODS: We included 291 adult patients hospitalised with CAP and 20 healthy controls. Measurements were performed in serum of day 0, 2, and 4, and at least 30 days after admission. RESULTS: Our most important results were: 1) At all time-points, including 30 days after admission, YKL-40 and CCL18 levels were higher in CAP patients compared to healthy controls; and 2) Patients with CAP caused by an intracellular, atypical bacterium had lower YKL-40 and especially CCL18 levels on and during admission in comparison with other or unknown CAP aetiology. CONCLUSIONS: Our findings suggest that these pulmonary markers could be useful to assess CAP severity and, especially YKL-40 and CCL18 by helping predict CAP caused by atypical pathogens. PMID- 29324811 TI - Scale-up of Kenya's national HIV viral load program: Findings and lessons learned. AB - OBJECTIVES: Kenya is one of the first African countries to scale up a national HIV viral load monitoring program. We sought to assess program scale up using the national database and identify areas for systems strengthening. METHODS: Data from January 2012 to March 2016 were extracted from Kenya's national viral load database. Characteristics of 1,108,356 tests were assessed over time, including reason for testing, turnaround times, test results, treatment regimens, and socio demographic information. RESULTS: The number of facilities offering viral load testing increased to ~2,000 with >40,000 tests being conducted per month by 2016. By March 2016, most (84.2%) tests were conducted for routine monitoring purposes and the turnaround time from facility-level sample collection to result dispatch from the lab was 21(24) [median (IQR)] days. Although the proportions of repeat viral load tests increased over time, the volumes were lower than expected. Elevated viral load was much more common in pediatric and adolescent patients (0 <3 years: 43.1%, 3-<10 years: 34.5%, 10-<20 years: 36.6%) than in adults (30-<60 years: 13.3%; p<0.001). CONCLUSIONS: Coverage of viral load testing dramatically increased in Kenya to >50% of patients on antiretroviral therapy (ART) by early 2016 and represents a relatively efficient laboratory system. However, strengthening of patient tracking mechanisms and viral load result utilization may be necessary to further improve the system. Additional focus is needed on paediatric/adolescent patients to improve viral suppression in these groups. Kenya's national viral load database has demonstrated its usefulness in assessing laboratory programs, tracking trends in patient characteristics, monitoring scale up of new policies and programs, and identifying problem areas for further investigation. PMID- 29324812 TI - Identifying unmet clinical need in hypertrophic cardiomyopathy using national electronic health records. AB - INTRODUCTION: To evaluate unmet clinical need in unselected hypertrophic cardiomyopathy (HCM) patients to determine the risk of a wide range of subsequent cardiovascular disease endpoints and safety endpoints relevant for trial design. METHODS: Population based cohort (CALIBER, linked primary care, hospital and mortality records in England, period 1997-2010), all people diagnosed with HCM were identified and matched by age, sex and general practice with ten randomly selected people without HCM. Random-effects Poisson models were used to assess the associations between HCM and cardiovascular diseases and bleeding. RESULTS: Among 3,290,455 eligible people a diagnosis of hypertrophic cardiomyopathy was found in 4 per 10,000. Forty-one percent of the 1,160 individuals with hypertrophic cardiomyopathy were women and the median age was 57 years. The median follow-up was 4.0 years. Compared to general population controls, people with HCM had higher risk of ventricular arrhythmia (incidence rate ratio = 23.53, [95% confidence interval 12.67-43.72]), cardiac arrest or sudden cardiac death (6.33 [3.69-10.85]), heart failure (4.31, [3.30-5.62]), and atrial fibrillation (3.80 [3.04-4.75]). HCM was also associated with a higher incidence of myocardial infarction ([MI] 1.90 [1.27-2.84]) and coronary revascularisation (2.32 [1.46 3.69]).The absolute Kaplan-Meier risks at 3 years were 8.8% for the composite endpoint of cardiovascular death or heart failure, 8.4% for the composite of cardiovascular death, stroke or myocardial infarction, and 1.5% for major bleeding. CONCLUSIONS: Our study identified major unmet need in HCM and highlighted the importance of implementing improved cardiovascular prevention strategies to increase life-expectancy of the contemporary HCM population. They also show that national electronic health records provide an effective method for identifying outcomes and clinically relevant estimates of composite efficacy and safety endpoints essential for trial design in rare diseases. PMID- 29324813 TI - Increase in extraction of I-123 iomazenil in patients with chronic cerebral ischemia. AB - BACKGROUND: Cerebral extraction of diffusively distributed substances like oxygen has been suggested to change according to the cerebral blood flow (CBF) and status of the microvasculature. The relationships between the cerebral extraction of diffusively distributed lipophilic tracers and the severity of cerebral ischemia has not yet been clarified. In the present study, we attempted to elucidate the association between the extraction fraction of the lipophilic tracer I-123 iomazenil (IMZ) (IMZ-EF) and the oxygen extraction fraction (OEF) derived from O-15 PET in patients with chronic steno-occlusive disease of internal carotid artery (ICA) or middle cerebral artery (MCA). METHODS: Seven patients with unilateral chronic severe stenosis or occlusion of the middle cerebral/internal cerebral artery were prospectively recruited for this study. All the patients underwent both O-15 PET and quantitative I-123 IMZ SPECT. Parametric images derived from the PET and SPECT scans were anatomically normalized and evaluated by automated image analysis based on the volume-of interest template. RESULTS: The asymmetry index (AI) of IMZ-EF was shown to be significantly correlated with the AI of OEF (r = 0.562, P < 0.001) in the internal carotid artery perfusion area. Strong and significant correlation between the AI of the influx rate constant K1 of IMZ and the AI of the cerebral metabolic rate of oxygen (r = 0.552, P = 0.001) was clarified. CONCLUSIONS: Our results suggested that the transportation efficiency of I-123 IMZ into the brain tissue was an indicator for evaluating severity of cerebral ischemia in patients with chronic steno-occlusive disease of ICA or MCA. Cerebral metabolic state can possibly be estimated by I-123 IMZ SPECT without cyclotron. PMID- 29324814 TI - Comprehensive molecular profiling of advanced/metastatic olfactory neuroblastomas. AB - Olfactory neuroblastoma (ONB) is a rare, locally aggressive, malignant neoplasm originating in the olfactory epithelium in the nasal vault. The recurrence rate of ONB remains high and there are no specific treatment guidelines for recurrent/metastatic ONBs. This study retrospectively evaluated 23 ONB samples profiled at Caris Life Sciences (Phoenix, Arizona) using DNA sequencing (Sanger/NGS [Illumina], n = 15) and gene fusions (Archer FusionPlex, n = 6), whole genome RNA microarray (HumanHT-12 v4 beadChip, Illumina, n = 4), gene copy number assays (chromogenic and fluorescent in situ hybridization), and immunohistochemistry. Mutations were detected in 63% ONBs including TP53, CTNNB1, EGFR, APC, cKIT, cMET, PDGFRA, CDH1, FH, and SMAD4 genes. Twenty-one genes were over-expressed and 19 genes under-expressed by microarray assay. Some of the upregulated genes included CD24, SCG2, and IGFBP-2. None of the cases harbored copy number variations of EGFR, HER2 and cMET genes, and no gene fusions were identified. Multiple protein biomarkers of potential response or resistance to classic chemotherapy drugs were identified, such as low ERCC1 [cisplatin sensitivity in 10/12], high TOPO1 [irinotecan sensitivity in 12/19], high TUBB3 [vincristine resistance in 13/14], and high MRP1 [multidrug resistance in 6/6 cases]. None of the cases (0/10) were positive for PD-L1 in tumor cells. Overexpression of pNTRK was observed in 67% (4/6) of the cases without underlying genetic alterations. Molecular alterations detected in our study (e.g., Wnt and cKIT/PDGFRA pathways) are potentially treatable using novel therapeutic approaches. Identified protein biomarkers of response or resistance to classic chemotherapy could be useful in optimizing existing chemotherapy treatment(s) in ONBs. PMID- 29324816 TI - Changes in respiratory and non-respiratory symptoms in occupants of a large office building over a period of moisture damage remediation attempts. AB - There is limited information on the natural history of building occupants' health in relation to attempts to remediate moisture damage. We examined changes in respiratory and non-respiratory symptoms in 1,175 office building occupants over seven years with multiple remediation attempts. During each of four surveys, we categorized participants using a severity score: 0 = asymptomatic; 1 = mild, symptomatic in the last 12 months, but not frequently in the last 4 weeks; 2 = severe, symptomatic at least once weekly in the last 4 weeks. Building-related symptoms were defined as improving away from the building. We used random intercept models adjusted for demographics, smoking, building tenure, and microbial exposures to estimate temporal changes in the odds of building-related symptoms or severity scores independent of the effect of microbial exposures. Trend analyses of combined mild/severe symptoms showed no changes in the odds of respiratory symptoms but significant improvement in non-respiratory symptoms over time. Separate analyses showed increases in the odds of severe respiratory symptoms (odds ratio/year = 1.15-1.16, p-values<0.05) and severity scores (0.02/year, p-values<0.05) for wheezing and shortness of breath on exertion, due to worsening of participants in the mild symptom group. For non-respiratory symptoms, we found no changes in the odds of severe symptoms but improvement in severity scores (-0.04--0.01/year, p-values<0.05) and the odds for mild fever and chills, excessive fatigue, headache, and throat symptoms (0.65-0.79/year, p values<0.05). Our study suggests that after the onset of respiratory and severe non-respiratory symptoms associated with dampness/mold, remediation efforts might not be effective in improving occupants' health. PMID- 29324817 TI - Synthesis, characterization and in vitro antitrypanosomal activities of new carboxamides bearing quinoline moiety. AB - The reported toxicities of current antitrypanosomal drugs and the emergence of drug resistant trypanosomes underscore the need for the development of new antitrypanosomal agents. We report herein the synthesis and antitrypanosomal activity of 24 new amide derivatives of 3-aminoquinoline, bearing substituted benzenesulphonamide. Nine of the new derivatives showed comparable antitrypanosomal activities at IC50 range of 1-6 nM (melarsoprol 5 nM). Compound 11n and 11v are more promising antitrypanosomal agents with IC50 1.0 nM than the rest of the reported derivatives. The novel compounds showed satisfactory predicted physico-chemical properties including oral bioavailability, permeability and transport properties. PMID- 29324815 TI - Biophysical insights from a single chain camelid antibody directed against the Disrupted-in-Schizophrenia 1 protein. AB - Accumulating evidence suggests an important role for the Disrupted-in Schizophrenia 1 (DISC1) protein in neurodevelopment and chronic mental illness. In particular, the C-terminal 300 amino acids of DISC1 have been found to mediate important protein-protein interactions and to harbor functionally important phosphorylation sites and disease-associated polymorphisms. However, long disordered regions and oligomer-forming subdomains have so far impeded structural analysis. VHH domains derived from camelid heavy chain only antibodies are minimal antigen binding modules with appreciable solubility and stability, which makes them well suited for the stabilizing proteins prior to structural investigation. Here, we report on the generation of a VHH domain derived from an immunized Lama glama, displaying high affinity for the human DISC1 C region (aa 691-836), and its characterization by surface plasmon resonance, size exclusion chromatography and immunological techniques. The VHH-DISC1 (C region) complex was also used for structural investigation by small angle X-ray scattering analysis. In combination with molecular modeling, these data support predictions regarding the three-dimensional fold of this DISC1 segment as well as its steric arrangement in complex with our VHH antibody. PMID- 29324818 TI - Root-tip-mediated inhibition of hydrotropism is accompanied with the suppression of asymmetric expression of auxin-inducible genes in response to moisture gradients in cucumber roots. AB - In cucumber seedlings, gravitropism interferes with hydrotropism, which results in the nearly complete inhibition of hydrotropism under stationary conditions. However, hydrotropic responses are induced when the gravitropic response in the root is nullified by clinorotation. Columella cells in the root cap sense gravity, which induces the gravitropic response. In this study, we found that removing the root tip induced hydrotropism in cucumber roots under stationary conditions. The application of auxin transport inhibitors to cucumber seedlings under stationary conditions suppressed the hydrotropic response induced by the removal of the root tip. To investigate the expression of genes related to hydrotropism in de-tipped cucumber roots, we conducted transcriptome analysis of gene expression by RNA-Seq using seedlings exhibiting hydrotropic and gravitropic responses. Of the 21 and 45 genes asymmetrically expressed during hydrotropic and gravitropic responses, respectively, five genes were identical. Gene ontology (GO) analysis indicated that the category auxin-inducible genes was significantly enriched among genes that were more highly expressed in the concave side of the root than the convex side during hydrotropic or gravitropic responses. Reverse transcription followed by quantitative polymerase chain reaction (RT-qPCR) analysis revealed that root hydrotropism induced under stationary conditions (by removing the root tip) was accompanied by the asymmetric expression of several auxin-inducible genes. However, intact roots did not exhibit the asymmetric expression patterns of auxin-inducible genes under stationary conditions, even in the presence of a moisture gradient. These results suggest that the root tip inhibits hydrotropism by suppressing the induction of asymmetric auxin distribution. Auxin transport and distribution not mediated by the root tip might play a role in hydrotropism in cucumber roots. PMID- 29324819 TI - Development of the Japanese version of the Visual Discomfort Scale. AB - BACKGROUND: Visual stimuli, such as stripes and texts, can induce "visual discomfort" including perceptual and somatic symptoms. Individuals reporting high levels of visual discomfort might experience migraine headache and may have reduced reading efficiency due to visual perceptual difficulties. This study aimed to develop and validate the Japanese version of the Visual Discomfort Scale, which measures proneness to visual discomfort. METHODS AND RESULTS: In Survey 1, 428 adults completed the Japanese version and a questionnaire assessing migraine morbidity. Rasch analysis revealed that the Japanese version is a unidimensional scale with a high amount of unexplained variance due to random noise rather than another dimension, and has high person and item reliabilities. Participants with migraine exhibited high scores in the Japanese version, indicating the construct validity of the scale. Survey 2 with 118 adults revealed a strong test-retest correlation for the Japanese version, indicating the stability of the scale. CONCLUSION: The Japanese version of the Visual Discomfort Scale is a sufficiently reliable and valid scale for assessing visual discomfort, although its unidimensionality leaves room for further improvements. PMID- 29324820 TI - Incidence and prevalence of patellofemoral pain: A systematic review and meta analysis. AB - BACKGROUND: Patellofemoral pain is considered one of the most common forms of knee pain, affecting adults, adolescents, and physically active populations. Inconsistencies in reported incidence and prevalence exist and in relation to the allocation of healthcare and research funding, there is a clear need to accurately understand the epidemiology of patellofemoral pain. METHODS: An electronic database search was conducted, as well as grey literature databases, from inception to June 2017. Two authors independently selected studies, extracted data and appraised methodological quality. If heterogeneous, data were analysed descriptively. Where studies were homogeneous, data were pooled through a meta-analysis. RESULTS: 23 studies were included. Annual prevalence for patellofemoral pain in the general population was reported as 22.7%, and adolescents as 28.9%. Incidence rates in military recruits ranged from 9.7 571.4/1,000 person-years, amateur runners in the general population at 1080.5/1,000 person-years and adolescents amateur athletes 5.1%-14.9% over 1 season. One study reported point prevalence within military populations as 13.5%. The pooled estimate for point prevalence in adolescents was 7.2% (95% Confidence Interval: 6.3%-8.3%), and in female only adolescent athletes was 22.7% (95% Confidence Interval 17.4%-28.0%). CONCLUSION: This review demonstrates high incidence and prevalence levels for patellofemoral pain. Within the context of this, and poor long term prognosis and high disability levels, PFP should be an urgent research priority. PROSPERO REGISTRATION: CRD42016038870. PMID- 29324821 TI - Slightly increased BMI at young age is a risk factor for future hypertension in Japanese men. AB - BACKGROUND: Hypertension is developed easily in Asian adults with normal body mass index (BMI) (~23 kg/m2), compared with other ethnicities with similar BMI. This study tested the hypothesis that slightly increased BMI at young age is a risk factor for future hypertension in Japanese men by historical cohort study. METHODS: The study participants were 636 male alumni of the physical education school. They had available data on their physical examination at college age and follow-up investigation between 2007 and 2011. The participants were categorized into six categories: BMI at college age of <20.0 kg/m2, 20.0-21.0kg/m2, 21.0 22.0kg/m2, 22.0-23.0kg/m2, 23.0-24.0kg/m2, and >=24.0kg/m2, and the incidence of hypertension was compared. RESULTS: This study covered 27-year follow-up period (interquartile range: IQR: 23-31) which included 17,059 person-years of observation. Subjects were 22 (22-22) years old at graduated college, and 49 (45 53) years old at first follow-up investigation. During the period, 120 men developed hypertension. The prevalence rates of hypertension for lowest to highest BMI categories were 9.4%, 14.6%, 16.1%, 17.5%, 30.3%, and 29.3%, respectively (p<0.001 for trend), and their hazard ratios were 1.00 (reference), 1.80 (95%CI: 0.65-4.94), 2.17 (0.83-5.64), 2.29 (0.89-5.92), 3.60 (1.37-9.47) and 4.72 (1.78-12.48), respectively (p<0.001 for trend). This trend was similar after adjustment for age, year of graduation, smoking, current exercise status and current dietary intake. CONCLUSION: Slightly increased BMI at young age is a risk factor for future hypertension in Japanese men. PMID- 29324822 TI - Biting mechanics and niche separation in a specialized clade of primate seed predators. AB - We analyzed feeding biomechanics in pitheciine monkeys (Pithecia, Chiropotes, Cacajao), a clade that specializes on hard-husked unripe fruit (sclerocarpy) and resistant seeds (seed predation). We tested the hypothesis that pitheciine crania are well-suited to generate and withstand forceful canine and molar biting, with the prediction that they generate bite forces more efficiently and better resist masticatory strains than the closely-related Callicebus, which does not specialize on unripe fruits and/or seeds. We also tested the hypothesis that Callicebus-Pithecia-Chiropotes-Cacajao represent a morphocline of increasing sclerocarpic specialization with respect to biting leverage and craniofacial strength, consistent with anterior dental morphology. We found that pitheciines have higher biting leverage than Callicebus and are generally more resistant to masticatory strain. However, Cacajao was found to experience high strain magnitudes in some facial regions. We therefore found limited support for the morphocline hypothesis, at least with respect to the mechanical performance metrics examined here. Biting leverage in Cacajao was nearly identical (or slightly less than) in Chiropotes and strain magnitudes during canine biting were more likely to follow a Cacajao-Chiropotes-Pithecia trend of increasing strength, in contrast to the proposed morphocline. These results could indicate that bite force efficiency and derived anterior teeth were selected for in pitheciines at the expense of increased strain magnitudes. However, our results for Cacajao potentially reflect reduced feeding competition offered by allopatry with other pitheciines, which allows Cacajao species to choose from a wider variety of fruits at various stages of ripeness, leading to reduction in the selection for robust facial features. We also found that feeding biomechanics in sympatric Pithecia and Chiropotes are consistent with data on food structural properties and observations of dietary niche separation, with the former being well-suited for the regular molar crushing of hard seeds and the latter better adapted for breaching hard fruits. PMID- 29324823 TI - The relationship between personalities and self-report positive driving behavior in a Chinese sample. AB - Driving behaviors play an important role in accident involvement. Concretely speaking, aberrant driving behaviors would cause more accidents, and oppositely positive driving behaviors would promote to build safety traffic environment. The main goals of this study were to explore the positive driving behavior and its relationship with personality in a Chinese sample. A total of 421 licensed drivers (286 male and 135 female) from Beijing, China completed the Positive Driver Behavior Scale (PDBS), the Driver Behavior Questionnaire (DBQ), the Dula Dangerous Driving Index (DDDI) and the Big Five Inventory (BFI) on a voluntary and anonymous basis. The results showed that the Chinese version of the PDBS has both reliability and validity and that the PDBS was significantly correlated with the BFI. Specifically, the PDBS was negatively correlated with neuroticism (r = 0.38) and positively correlated with extraversion, agreeableness, conscientiousness and openness to experience (the correlation coefficient ranged from 0.36 to 0.55). In contrast with previous research, age was negatively correlated with the PDBS (r = -0.38) in our sample, which may have resulted from less driving experience or a lack of available cognitive resources. PMID- 29324824 TI - Assessing the links among environmental contaminants, endocrinology, and parasites to understand amphibian declines in montane regions of Costa Rica. AB - Amphibians inhabiting montane riparian zones in the Neotropics are particularly vulnerable to decline, but the reasons are poorly understood. Because environmental contaminants, endocrine disruption, and pathogens often figure prominently in amphibian declines it is imperative that we understand how these factors are potentially interrelated to affect montane populations. One possibility is that increased precipitation associated with global warming promotes the deposition of contaminants in montane regions. Increased exposure to contaminants, in turn, potentially elicits chronic elevations in circulating stress hormones that could contribute to montane population declines by compromising resistance to pathogens and/or production of sex steroids regulating reproduction. Here, we test this hypothesis by examining contaminant levels, stress and sex steroid levels, and nematode abundances in male drab treefrogs, Smilisca sordida, from lowland and montane populations in Costa Rica. We found no evidence that montane populations were more likely to possess contaminants (i.e., organochlorine, organophosphate and carbamate pesticides or benzidine and chlorophenoxy herbicides) than lowland populations. We also found no evidence of elevational differences in circulating levels of the stress hormone corticosterone, estradiol or progesterone. However, montane populations possessed lower androgen levels, hosted more nematode species, and had higher nematode abundances than lowland populations. Although these results suggested that nematodes contributed to lower androgens in montane populations, we were unable to detect a significant inverse relationship between nematode abundance and androgen level. Our results suggest that montane populations of this species are not at greater risk of exposure to contaminants or chronic stress, but implicate nematodes and compromised sex steroid levels as potential threats to montane populations. PMID- 29324825 TI - Early- and later-phases satellite cell responses and myonuclear content with resistance training in young men. AB - Satellite cells (SC) are associated with skeletal muscle remodelling after muscle damage and/or extensive hypertrophy resulting from resistance training (RT). We recently reported that early increases in muscle protein synthesis (MPS) during RT appear to be directed toward muscle damage repair, but MPS contributes to hypertrophy with progressive muscle damage attenuation. However, modulations in acute-chronic SC content with RT during the initial (1st-wk: high damage), early (3rd-wk: attenuated damage), and later (10th-wk: no damage) stages is not well characterized. Ten young men (27 +/- 1 y, 23.6 +/- 1.0 kg.m-2) underwent 10-wks of RT and muscle biopsies (vastus-lateralis) were taken before (Pre) and post (48h) the 1st (T1), 5th (T2) and final (T3) RT sessions to evaluate fibre type specific SC content, cross-sectional area (fCSA) and myonuclear number by immunohistochemistry. We observed RT-induced hypertrophy after 10-wks of RT (fCSA increased ~16% in type II, P < 0.04; ~8% in type I [ns]). SC content increased 48h post-exercise at T1 (~69% in type I [P = 0.014]; ~42% in type II [ns]), and this increase was sustained throughout RT (pre T2: ~65%, ~92%; pre T3: ~30% [ns], ~87%, for the increase in type I and II, respectively, vs. pre T1 [P < 0.05]). Increased SC content was not coupled with changes in myonuclear number. SC have a more pronounced role in muscle repair during the initial phase of RT than muscle hypertrophy resulted from 10-wks RT in young men. Chronic elevated SC pool size with RT is important providing proper environment for future stresses or larger fCSA increases. PMID- 29324826 TI - Facial responsiveness of psychopaths to the emotional expressions of others. AB - Psychopathic individuals show selfish, manipulative, and antisocial behavior in addition to emotional detachment and reduced empathy. Their empathic deficits are thought to be associated with a reduced responsiveness to emotional stimuli. Immediate facial muscle responses to the emotional expressions of others reflect the expressive part of emotional responsiveness and are positively related to trait empathy. Empirical evidence for reduced facial muscle responses in adult psychopathic individuals to the emotional expressions of others is rare. In the present study, 261 male criminal offenders and non-offenders categorized dynamically presented facial emotion expressions (angry, happy, sad, and neutral) during facial electromyography recording of their corrugator muscle activity. We replicated a measurement model of facial muscle activity, which controls for general facial responsiveness to face stimuli, and modeled three correlated emotion-specific factors (i.e., anger, happiness, and sadness) representing emotion specific activity. In a multi-group confirmatory factor analysis, we compared the means of the anger, happiness, and sadness latent factors between three groups: 1) non-offenders, 2) low, and 3) high psychopathic offenders. There were no significant mean differences between groups. Our results challenge current theories that focus on deficits in emotional responsiveness as leading to the development of psychopathy and encourage further theoretical development on deviant emotional processes in psychopathic individuals. PMID- 29324827 TI - Psychometric properties of the Arabic version of the 12-item diabetes fatalism scale. AB - BACKGROUND: There are widespread fatalistic beliefs in Arab countries, especially among individuals with diabetes. However, there is no tool to assess diabetes fatalism in this population. This study describes the processes used to create an Arabic version of the Diabetes Fatalism Scale (DFS) and examine its psychometric properties. METHODS: A descriptive correlational design was used with a convenience sample of Lebanese adults (N = 274) with type 2 diabetes recruited from a major hospital in Beirut, Lebanon and by snowball sampling. The 12- item Diabetes Fatalism Scale- Arabic (12-item DFS-Ar) was back-translated from the original version, pilot tested on 22 adults with type 2 diabetes and then administered to 274 patients to assess the validity and reliability of the scale. Confirmatory factor analysis (CFA) was used to test the hypothesized factor structure. Cronbach's alpha was used to test for reliability. RESULTS: CFA supported the existence of the three factor hypothesis of the original DFS scale. The five items measuring "emotional distress" loaded under Factor 1, the four items measuring "spiritual coping" loaded under factor 2 and the last three items measuring "perceived self-efficacy" of the original scale loaded under Factor 3 (p <0.001 for all three subscales). Goodness of fit indices confirmed adequateness of the CFA model (CFI = 0.97, TLI = 0.96, RMSEA = 0.067 and pclose = 0.05). The 12-item DFS-Ar showed good reliability (Cronbach's alpha of 0.86) and significantly predicted HbA1c (beta = 0.20, p < 0.01). After adjusting for the demographic characteristics and the number of diabetes comorbid conditions, the 12-item DFS-Ar score was independently associated with HbA1c in a multivariable model (beta = 0.16, p < 0.05). CONCLUSIONS: The 12-item DFS-Ar demonstrated good psychometric properties that are comparable to the original scale. It is a valid and reliable measure of diabetes fatalism. Further testing with larger and non Lebanese Arabic population is needed. PMID- 29324828 TI - Correction: Economic evaluation of the one-hour rule-out and rule-in algorithm for acute myocardial infarction using the high-sensitivity cardiac troponin T assay in the emergency department. AB - [This corrects the article DOI: 10.1371/journal.pone.0187662.]. PMID- 29324829 TI - Electrode placement on the forearm for selective stimulation of finger extension/flexion. AB - It is still challenging to achieve a complex grasp or fine finger control by using surface functional electrical stimulation (FES), which usually requires a precise electrode configuration under laboratory or clinical settings. The goals of this study are as follows: 1) to study the possibility of selectively activating individual fingers; 2) to investigate whether the current activation threshold and selective range of individual fingers are affected by two factors: changes in the electrode position and forearm rotation (pronation, neutral and supination); and 3) to explore a theoretical model for guidance of the electrode placement used for selective activation of individual fingers. A coordinate system with more than 400 grid points was established over the forearm skin surface. A searching procedure was used to traverse all grid points to identify the stimulation points for finger extension/flexion by applying monophasic stimulation pulses. Some of the stimulation points for finger extension and flexion were selected and tested in their respective two different forearm postures according to the number and the type of the activated fingers and the strength of finger action response to the electrical stimulation at the stimulation point. The activation thresholds and current ranges of the selectively activated finger at each stimulation point were determined by visual analysis. The stimulation points were divided into three groups ("Low", "Medium" and "High") according to the thresholds of the 1st activated fingers. The angles produced by the selectively activated finger within selective current ranges were measured and analyzed. Selective stimulation of extension/flexion is possible for most fingers. Small changes in electrode position and forearm rotation have no significant effect on the threshold amplitude and the current range for the selective activation of most fingers (p > 0.05). The current range is the largest (more than 2 mA) for selective activation of the thumb, followed by those for the index, ring, middle and little fingers. The stimulation points in the "Low" group for all five fingers lead to noticeable finger angles at low current intensity, especially for the index, middle, and ring fingers. The slopes of the finger angle variation in the "Low" group for digits 2~4 are inversely proportional to the current intensity, whereas the slopes of the finger angle variation in other groups and in all groups for the thumb and little finger are proportional to the current intensity. It is possible to selectively activate the extension/flexion of most fingers by stimulating the forearm muscles. The physiological characteristics of each finger should be considered when placing the negative electrode for selective stimulation of individual fingers. The electrode placement used for the selective activation of individual fingers should not be confined to the location with the lowest activation threshold. PMID- 29324830 TI - Nano-Pulse Stimulation induces immunogenic cell death in human papillomavirus transformed tumors and initiates an adaptive immune response. AB - Nano-Pulse Stimulation (NPS) is a non-thermal pulsed electric field modality that has been shown to have cancer therapeutic effects. Here we applied NPS treatment to the human papillomavirus type 16 (HPV 16)-transformed C3.43 mouse tumor cell model and showed that it is effective at eliminating primary tumors through the induction of immunogenic cell death while subsequently increasing the number of tumor-infiltrating lymphocytes within the tumor microenvironment. In vitro NPS treatment of C3.43 cells resulted in a doubling of activated caspase 3/7 along with the translocation of phosphatidylserine (PS) to the outer leaflet of the plasma membrane, indicating programmed cell death activity. Tumor-bearing mice receiving standard NPS treatment showed an initial decrease in tumor volume followed by clearing of tumors in most mice, and a significant increase in overall survival. Intra-tumor analysis of mice that were unable to clear tumors showed an inverse correlation between the number of tumor infiltrating lymphocytes and the size of the tumor. Approximately half of the mice that cleared established tumors were protected against tumor re-challenge on the opposite flank. Selective depletion of CD8+ T cells eliminated this protection, suggesting that NPS treatment induces an adaptive immune response generating CD8+ T cells that recognize tumor antigen(s) associated with the C3.43 tumor model. This method may be utilized in the future to not only ablate primary tumors, but also to induce an anti-tumor response driven by effector CD8+ T cells capable of protecting individuals from disease recurrence. PMID- 29324831 TI - The PlantLIBRA consumer survey: Findings on the use of plant food supplements in Italy. AB - BACKGROUND: Food supplements, and in particular those containing botanicals (plant food supplements, PFS), have in recent decades been of great interest both to consumers and to food/pharmaceutical industries. OBJECTIVES: The aim of this paper is to examine replies by Italian consumers to the PlantLIBRA consumers' survey in order to: 1) assess the behaviour of an Italian population with respect to the use of PFS, and to compare it with that of other 5 countries involved in the whole survey; 2) identify different habits in the 4 Italian cities selected according to their geographical distribution; 3) collect independent information on the actual intake of PFS and consumers' behaviour. SUBJECTS/SETTING: 397 Italian consumers enrolled, 187 males (49.5%) and 191 female (50.5%). The distribution of subjects among the 4 cities included was: Milan 99; Venice 90; Rome 96 and Catania 96. RESULTS: The interest in PFS in Italy is high, the prevalence of "regular" consumers being 22.7%. Some differences were observed between the 4 cities involved: the pattern of use during the year was specific to each city; consumers in Milan reported reasons to use PFS significantly different from those in the whole Italian sample and did not indicate supermarkets as an important place of purchase; respondents from Rome and Catania more frequently used family doctors and pharmacists as a source of recommendation. Some significant difference among cities, sex and age groups were observed when the most frequently used botanicals were ranked. CONCLUSIONS: The results provide new insights on the socio-economic characteristics and lifestyle of Italian PFS consumers, on their reasons for and pattern of use, and on their behaviour and expectations. The value of this information is not restricted to the specific country (Italy) but allows for a more general evaluation of the pattern of use, according to habits and geographical area. PMID- 29324832 TI - Differential microRNA expression in breast cancer with different onset age. AB - PURPOSE: The lower breast cancer incidence in Asian populations compared with Western populations has been speculated to be caused by environmental and genetic variation. Early-onset breast cancer occupies a considerable proportion of breast cancers in Asian populations, but the reason for this is unclear. We aimed to examine miRNA expression profiles in different age-onset groups and pathological subtypes in Asian breast cancer. METHODS: At the first stage, 10 samples (tumor: n = 6, normal tissue: n = 4) were analyzed with an Agilent microRNA 470 probe microarray. Candidate miRNAs with expression levels that were significantly altered in breast cancer samples or selected from a literature review were further validated by quantitative real-time PCR (qPCR) of 145 breast cancer samples at the second stage of the process. Correlations between clinicopathological parameters of breast cancer patients from different age groups and candidate miRNA expression were elucidated. RESULTS: In the present study, the tumor subtypes were significantly different in each age group, and an onset age below 40 had poor disease-free and overall survival rates. For all breast cancer patients, miR-335 and miR-145 were down-regulated, and miR-21, miR 200a, miR-200c, and miR-141 were up-regulated. In very young patients (age < 35 y/o), the expression of 3 and 8 specific miRNAs were up- and down-regulated, respectively. In young patients (36-40 y/o), 3 and 3 specific miRNAs were up- and down-regulated, respectively. miR-532-5p was up-regulated in triple-negative breast cancer. CONCLUSIONS: Differential miRNA expressions between normal and tumor tissues were observed in different age groups and tumor subtypes. Evolutionarily conserved miRNA clusters, which initiate malignancy transformation, were up-regulated in the breast cancers of very young patients. None of the significantly altered miRNAs were observed in postmenopausal patients. PMID- 29324833 TI - Evidence for PMAT- and OCT-like biogenic amine transporters in a probiotic strain of Lactobacillus: Implications for interkingdom communication within the microbiota-gut-brain axis. AB - The ability of prokaryotic microbes to produce and respond to neurochemicals that are more often associated with eukaryotic systems is increasingly recognized through the concept of microbial endocrinology. Most studies have described the phenomena of neurochemical production by bacteria, but there remains an incomplete understanding of the mechanisms by which microbe- or host-derived neuroactive substances can be recognized by bacteria. Based on the evolutionary origins of eukaryotic solute carrier transporters, we hypothesized that bacteria may possess an analogous uptake function for neuroactive biogenic amines. Using specific fluorescence-based assays, Lactobacillus salivarius biofilms appear to express both plasma membrane monoamine transporter (PMAT)- and organic cation transporter (OCT)-like uptake of transporter-specific fluorophores. This phenomenon is not distributed throughout the genus Lactobacillus as L. rhamnosus biofilms did not take up these fluorophores. PMAT probe uptake into L. salivarius biofilms was attenuated by the protonophore CCCP, the cation transport inhibitor decynium-22, and the natural substrates norepinephrine, serotonin and fluoxetine. These results provide the first evidence, to our knowledge, for the existence of PMAT- and OCT-like uptake systems in a bacterium. They also suggest the existence of a hitherto unrecognized mechanism by which a probiotic bacterium may interact with host signals and may provide a means to examine microbial endocrinology based interactions in health and disease that are part of the larger microbiota gut-brain axis. PMID- 29324834 TI - Experimental transmission of West Nile Virus and Rift Valley Fever Virus by Culex pipiens from Lebanon. AB - West Nile virus (WNV) and Rift Valley fever virus (RVFV) are two emerging arboviruses transmitted by Culex pipiens species that includes two biotypes: pipiens and molestus. In Lebanon, human cases caused by WNV and RVFV have never been reported. However, the introduction of these viruses in the country is likely to occur through the migratory birds and animal trades. In this study, we evaluated the ability of Cx. pipiens, a predominant mosquito species in urban and rural regions in Lebanon, to transmit WNV and RVFV. Culex egg rafts were collected in the West Bekaa district, east of Lebanon and adult females of Cx. pipiens were experimentally infected with WNV and RVFV Clone 13 strain at titers of 1.6*108 and 1.33*107 plaque forming units (PFU)/mL, respectively. We estimated viral infection, dissemination and transmission at 3, 7, 14 and 19 days post infection (dpi). Results showed that infection was higher for WNV than for RVFV from 3 dpi to 19 dpi. Viral dissemination and transmission started from 3 dpi for WNV; and only from 19 dpi for RVFV. Moreover, Cx. pipiens were able to excrete in saliva a higher number of viral particles of WNV (1028 +/- 405 PFU/saliva at 19 dpi) than RVFV (42 PFU/saliva at 19 dpi). Cx. pipiens from Lebanon are efficient experimental vectors of WNV and to a lower extent, RVFV. These findings should stimulate local authorities to establish an active entomological surveillance in addition to animal surveys for both viruses in the country. PMID- 29324835 TI - Subject-specific pulse wave propagation modeling: Towards enhancement of cardiovascular assessment methods. AB - Cardiovascular diseases are the leading cause of death worldwide. Pulse wave analysis (PWA) technique, which reconstructs and analyses aortic pressure waveform based on non-invasive peripheral pressure recording, became an important bioassay for cardiovascular assessment in a general population. The aim of our study was to establish a pulse wave propagation modeling framework capable of matching clinical PWA data from healthy individuals on a per-subject basis. Radial pressure profiles from 20 healthy individuals (10 males, 10 females), with mean age of 42 +/- 10 years, were recorded using applanation tonometry (SphygmoCor, AtCor Medical, Australia) and used to estimate subject-specific parameters of mathematical model of blood flow in the system of fifty-five arteries. The model was able to describe recorded pressure profiles with high accuracy (mean absolute percentage error of 1.87 +/- 0.75%) when estimating only 6 parameters for each subject. Cardiac output (CO) and stroke volume (SV) have been correctly identified by the model as lower in females than males (CO of 3.57 +/- 0.54 vs. 4.18 +/- 0.72 L/min with p-value < 0.05; SV of 49.5 +/- 10.1 vs. 64.2 +/- 16.8 ml with p-value = 0.076). Moreover, the model identified age related changes in the heart function, i.e. that the cardiac output at rest is maintained with age (r = 0.23; p-value = 0.32) despite the decreasing heart rate (r = -0.49; p-value < 0.05), because of the increase in stroke volume (r = 0.46; p-value < 0.05). Central PWA indices derived from recorded waveforms strongly correlated with those obtained using corresponding model-predicted radial waves (r > 0.99 and r > 0.97 for systolic (SP) and diastolic (DP) pressures, respectively; r > 0.77 for augmentation index (AI); all p-values < 0.01). Model predicted central waveforms, however, had higher SP than those reconstructed by PWA using recorded radial waves (5.6 +/- 3.3 mmHg on average). From all estimated subject-specific parameters only the time to the peak of heart ejection profile correlated with clinically measured AI. Our study suggests that the proposed model may serve as a tool to computationally investigate virtual patient scenarios mimicking different cardiovascular abnormalities. Such a framework can augment our understanding and help with the interpretation of PWA results. PMID- 29324836 TI - Variation in angler distribution and catch rates of stocked rainbow trout in a small reservoir. AB - We investigated the spatial and temporal relationship of catch rates and angler party location for two days following a publicly announced put-and-take stocking of rainbow trout (Oncorhynchus mykiss). Catch rates declined with time since stocking and distance from stocking. We hypothesized that opportunity for high catch rates would cause anglers to fish near the stocking location and disperse with time, however distance between angler parties and stocking was highly variable at any given time. Spatially explicit differences in catch rates can affect fishing quality. Further research could investigate the variation between angler distribution and fish distribution within a waterbody. PMID- 29324837 TI - Health economic assessment of Gd-EOB-DTPA MRI versus ECCM-MRI and multi-detector CT for diagnosis of hepatocellular carcinoma in China. AB - Limited data exists in China on the comparative cost of gadolinium ethoxybenzyl diethylenetriamine magnetic resonance imaging (Gd-EOB-DTPA-MRI) with other imaging techniques. This study compared the total cost of Gd-EOB-DTPA-MRI with multidetector computed tomography (MDCT) and extracellular contrast media enhanced MRI (ECCM-MRI) as initial imaging procedures in patients with suspected hepatocellular carcinoma (HCC). We developed a decision-tree model on the basis of the Chinese clinical guidelines for HCC, which was validated by clinical experts from China. The model compared the diagnostic accuracy and costs of alternative initial imaging procedures. Compared with MDCT and ECCM-MRI, Gd-EOB DTPA-MRI imaging was associated with higher rates of diagnostic accuracy, i.e. higher proportions of true positives (TP) and true negatives (TN) with lower false positives (FP). Total diagnosis and treatment cost per patient after the initial Gd-EOB-DTPA-MRI evaluation was similar to MDCT (Y30,360 vs. Y30,803) and lower than that reported with ECCM-MRI (Y30,360 vs. Y31,465). Lower treatment cost after initial Gd-EOB-DTPA-MRI was driven by reduced utilization of confirmatory diagnostic procedures and unnecessary treatments. The findings reported that Gd-EOB-DTPA-MRI offered higher diagnostic accuracy compared with MDCT and ECCM-MRI at a comparable cost, which indicates Gd-EOB-DTPA-MRI could be the preferred initial imaging procedure for the diagnosis of HCC in China. PMID- 29324839 TI - Wild, insectivorous bats might be carriers of Campylobacter spp. AB - BACKGROUND: The transmission cycles of the foodborne pathogens Campylobacter and Salmonella are not fully elucidated. Knowledge of these cycles may help reduce the transmission of these pathogens to humans. METHODOLOGY/PRINCIPAL FINDINGS: The presence of campylobacters and salmonellas was examined in 631 fresh fecal samples of wild insectivorous bats using a specially developed method for the simultaneous isolation of low numbers of these pathogens in small-sized fecal samples (<= 0.1 g). Salmonella was not detected in the feces samples, but thermotolerant campylobacters were confirmed in 3% (n = 17) of the bats examined and these pathogens were found in six different bat species, at different sites, in different ecosystems during the whole flying season of bats. Molecular typing of the 17 isolated strains indicated C. jejuni (n = 9), C. coli (n = 7) and C. lari (n = 1), including genotypes also found in humans, wildlife, environmental samples and poultry. Six strains showed unique sequence types. CONCLUSION/SIGNIFICANCE: This study shows that insectivorous bats are not only carriers of viral pathogens, but they can also be relevant for the transmission of bacterial pathogens. Bats should be considered as carriers and potential transmitters of Campylobacter and, where possible, contact between bats (bat feces) and food or feed should be avoided. PMID- 29324838 TI - Canine visceral leishmaniasis: Diagnosis and management of the reservoir living among us. AB - This article reviews essential topics of canine visceral leishmaniasis (CVL) due to Leishmania infantum infection. It focuses on the current serological and molecular diagnostic methods used in epidemiological research and veterinary clinics to diagnose CVL and includes new point-of-care (POC) tests under development. The efficacy of different treatment regimens on the clinical improvement and infectiousness of dogs is also addressed. In the last section, the review provides a critical appraisal of the effectiveness of different control measures that have been implemented to curb disease transmission. PMID- 29324840 TI - Malaria increased the risk of stunting and wasting among young children in Ethiopia: Results of a cohort study. AB - INTRODUCTION: Given the high prevalence of malnutrition in a malaria-endemic setting, improving nutritional status could serve as a tool to prevent malaria. However, the relationship between the two conditions remains unclear. Therefore, this study assessed the association between under-nutrition and malaria among a cohort of children aged 6 to 59 months old. METHODS: Two cohorts of children were followed for 89 weeks in a rural Rift Valley area of Ethiopia. In the first approach (malaria-malnutrition), a cohort of 2,330 non-stunted and 4,204 non wasted children were included to assess under-nutrition (outcome) based on their previous malaria status (exposure). In the second approach (malnutrition malaria), a cohort of 4,468 children were followed-up to measure malaria (outcome), taking under-nutrition as an exposure. A weekly home visit was carried out to identify malaria cases. Four anthropometry surveys were conducted, and generalized estimating equation (GEE) method was used to measure the association between undernutrition and malaria. RESULTS: The prevalence of stunting was 44.9% in December 2014, 51.5% in August 2015, 50.7% in December 2015 and 48.1% in August 2016. We observed 103 cases with 118 episodes of malaria, 684 new stunting and 239 new wasting cases. The incidence rate per 10,000 weeks of observation was 3.8 for malaria, 50.4 for stunting and 8.2 for wasting. Children with malaria infection, [Adjusted Odds Ratio (AOR) = 1.9; 95% Confidence Interval (CI), 1.2 2.9)] and younger age (AOR = 1.3; 95% CI, 1.1-1.5) were more likely to be stunted. Furthermore, children with malaria infection (AOR = 8.5; 95% CI, 5.0 14.5) and young age group (AOR = 1.6; 95% CI, 1.2-2.1) were more likely to be wasted. However, stunting and wasting were not risk factors of subsequent malaria illness. CONCLUSIONS: Malaria infection was a risk factor for stunting and wasting, but stunting or wasting was not associated with subsequent malaria illness. As our study shows that malaria is a risk factor for stunting and wasting, a close follow-up of the nutritional status of such children may be needed. TRIAL REGISTRATION: PACT R2014 11000 882128 (8 September 2014). PMID- 29324841 TI - Honey bee (Apis mellifera) nurses do not consume pollens based on their nutritional quality. AB - Honey bee workers (Apis mellifera) consume a variety of pollens to meet the majority of their requirements for protein and lipids. Recent work indicates that honey bees prefer diets that reflect the proper ratio of nutrients necessary for optimal survival and homeostasis. This idea relies on the precept that honey bees evaluate the nutritional composition of the foods provided to them. While this has been shown in bumble bees, the data for honey bees are mixed. Further, there is controversy as to whether foragers can evaluate the nutritional value of pollens, especially if they do not consume it. Here, we focused on nurse workers, who eat most of the pollen coming into the hive. We tested the hypothesis that nurses prefer diets with higher nutritional value. We first determined the nutritional profile, number of plant taxa (richness), and degree of hypopharyngeal gland (HG) growth conferred by three honey bee collected pollens. We then presented nurses with these same three pollens in paired choice assays and measured consumption. To further test whether nutrition influenced preference, we also presented bees with natural pollens supplemented with protein or lipids and liquid diets with protein and lipid ratios equal to the natural pollens. Different pollens conferred different degrees of HG growth, but despite these differences, nurse bees did not always prefer the most nutritious pollens. Adding protein and/or lipids to less desirable pollens minimally increased pollen attractiveness, and nurses did not exhibit a strong preference for any of the three liquid diets. We conclude that different pollens provide different nutritional benefits, but that nurses either cannot or do not assess pollen nutritional value. This implies that the nurses may not be able to communicate information about pollen quality to the foragers, who regulate the pollens coming into the hive. PMID- 29324842 TI - Effect of analytical treatment interruption and reinitiation of antiretroviral therapy on HIV reservoirs and immunologic parameters in infected individuals. AB - Therapeutic strategies aimed at achieving antiretroviral therapy (ART)-free HIV remission in infected individuals are under active investigation. Considering the vast majority of HIV-infected individuals experience plasma viral rebound upon cessation of therapy, clinical trials evaluating the efficacy of curative strategies would likely require inclusion of ART interruption. However, it is unclear what impact short-term analytical treatment interruption (ATI) and subsequent reinitiation of ART have on immunologic and virologic parameters of HIV-infected individuals. Here, we show a significant increase of HIV burden in the CD4+ T cells of infected individuals during ATI that was correlated with the level of plasma viral rebound. However, the size of the HIV reservoirs as well as immune parameters, including markers of exhaustion and activation, returned to pre-ATI levels 6-12 months after the study participants resumed ART. Of note, the proportions of near full-length, genome-intact and structurally defective HIV proviral DNA sequences were similar prior to ATI and following reinitiation of ART. In addition, there was no evidence of emergence of antiretroviral drug resistance mutations within intact HIV proviral DNA sequences following reinitiation of ART. These data demonstrate that short-term ATI does not necessarily lead to expansion of the persistent HIV reservoir nor irreparable damages to the immune system in the peripheral blood, warranting the inclusion of ATI in future clinical trials evaluating curative strategies. PMID- 29324845 TI - Soil microbial communities and enzyme activities in sea-buckthorn (Hippophae rhamnoides) plantation at different ages. AB - The aim of this study was to assess the impact of forest age and season on the soil microbial community and enzyme activities in sea-buckthorn plantation system and to determine the relative contributions to soil microbial properties. Soil sampling was carried out in the dry season (April) and wet season (September) in four areas, including: abandoned farmland (NH), an 8-year- old plantation (young plantation, 8Y), a 13-year-old plantation (middle-aged plantation, 13Y), and an 18-year-old plantation (mature plantation, 18Y). The results showed that forest age and season have a significant effect on soil microbial community structure and enzyme activities. The total, bacterial, fungal, Gram-negative (G+), and Gram positive (G-) PLFAs increased gradually with forest age, with the highest values detected in 18Y. All the detected enzyme activities showed the trend as a consequence of forest age. The microbial PLFAs and soil enzyme activities were higher in the wet season than the dry season. However, there were no significant interactions between forest age and season. A Correlation analysis suggested that soil microbial communities and enzyme activities were significantly and positively correlated with pH, total nitrogen (TN) and available phosphorus (AP). Season had a stronger influence on soil microbial communities than forest age. In general, sea-buckthorn plantations establishment might be a potential tool for maintaining and increasing soil fertility in arid and semi-arid regions. PMID- 29324846 TI - Correction: Hydrogen sulfide alleviates postharvest ripening and senescence of banana by antagonizing the effect of ethylene. AB - [This corrects the article DOI: 10.1371/journal.pone.0180113.]. PMID- 29324844 TI - Absence of myeloid Klf4 reduces prostate cancer growth with pro-atherosclerotic activation of tumor myeloid cells and infiltration of CD8 T cells. AB - The microenvironment of prostate cancer often includes abundant tumor-associated macrophages (TAMs), with their acquisition of an M2 phenotype correlating with local aggressiveness and metastasis. Tumor-derived M-CSF contributes to TAM M2 polarization, and M-CSF receptor inhibition slows prostate cancer growth in model systems. As additional cytokines can direct TAM M2 polarization, targeting downstream transcription factors could avoid resistance. Klf4 and C/EBPbeta each contribute to monocyte development, and reduced expression of macrophage Klf4 or C/EBPbeta favors their adoption of a pro-inflammatory M1 state. We find that a Hi Myc C57BL/6 prostate cancer line grows more slowly in syngeneic Klf4(f/f);Lys-Cre compared with Klf4(f/f) mice when inoculated subcutaneously, but grows equally rapidly in C/EBPbeta(f/f);Lys-Cre and C/EBPbeta(f/f) hosts. In the absence of myeloid Klf4, TAMs have reduced expression of surface mannose receptor and Fizz1 mRNA, both M2 markers. Global gene expression analysis further revealed activation of pro-inflammatory, pro-atherosclerotic pathways. Analysis of tumor infiltrating lymphocytes (TILs) demonstrated markedly increased activated CD8 T cell numbers, and CD8 T cell depletion obviated the inhibitory effect of myeloid Klf4 deletion on prostate cancer growth. These findings suggest that reducing expression or activity of the Klf4 transcription factor in tumor myeloid cells may contribute to prostate cancer therapy. PMID- 29324843 TI - Beta HPV38 oncoproteins act with a hit-and-run mechanism in ultraviolet radiation induced skin carcinogenesis in mice. AB - Cutaneous beta human papillomavirus (HPV) types are suspected to be involved, together with ultraviolet (UV) radiation, in the development of non-melanoma skin cancer (NMSC). Studies in in vitro and in vivo experimental models have highlighted the transforming properties of beta HPV E6 and E7 oncoproteins. However, epidemiological findings indicate that beta HPV types may be required only at an initial stage of carcinogenesis, and may become dispensable after full establishment of NMSC. Here, we further investigate the potential role of beta HPVs in NMSC using a Cre-loxP-based transgenic (Tg) mouse model that expresses beta HPV38 E6 and E7 oncogenes in the basal layer of the skin epidermis and is highly susceptible to UV-induced carcinogenesis. Using whole-exome sequencing, we show that, in contrast to WT animals, when exposed to chronic UV irradiation K14 HPV38 E6/E7 Tg mice accumulate a large number of UV-induced DNA mutations, which increase proportionally with the severity of the skin lesions. The mutation pattern detected in the Tg skin lesions closely resembles that detected in human NMSC, with the highest mutation rate in p53 and Notch genes. Using the Cre-lox recombination system, we observed that deletion of the viral oncogenes after development of UV-induced skin lesions did not affect the tumour growth. Together, these findings support the concept that beta HPV types act only at an initial stage of carcinogenesis, by potentiating the deleterious effects of UV radiation. PMID- 29324847 TI - Sabina chinensis and Liriodendron chinense improve air quality in Beijing, China. AB - Urban forests have been shown to be efficient for reducing air pollutants especially for particulate matters (PMs). This study aims to reveal the PM blocking capacity of two common artificial landscape species, Sabina chinensis and Liriodendron chinense and to investigate spatial-temporal heterogeneities by estimating the vegetation collection velocity of coarse (PM10) and fine particles (PM2.5) during different seasons and heights. PM concentration and meteorological data were collected on both leeward and windward sides of trees during the daytime in both summers and winters from 2013 to 2015. Concentration and meteorological monitors were installed at three heights, bottom (1.5 m), middle (3.5 m), and top (5.5 m) of the canopy. The results showed: During daytime, the collection velocity changed and PM2.5 collection velocity was much higher than that of PM10. Furthermore, the maximum collection velocities of L. chinense and S. chinensis occurred at 14:00-16:00 both in summer and winter. Moreover, the collection velocity had a positive correlation with wind speed and temperature. The blocking capacities of L. chinense and S. chinensis varied from season to season, and the concentrations of particulate matter indicate the middle canopy of both species as the most effective part for TSP blocking. Furthermore, these two species are more effective blocking in PM2.5 than PM10. The blocking capacity of S. chinensis is generally better. The vegetation collection is the major process of PM removal near the ground and sedimentation was not taken into consideration near the ground. PMID- 29324848 TI - Platelet-rich plasma to treat experimentally-induced skin wounds in animals: A systematic review and meta-analysis. AB - The objective of the study was to review current literature to determine whether the topical application of platelet-rich plasma (PRP) promotes healing in experimentally-induced full-thickness skin wounds in animals. The hypothesis was that the adjunct of PRP has a positive effect on wound healing. An electronic search was carried out on the following databases: Web of Science, Cochrane Library, PubMed, Research Gate, Cochrane Wounds Group, Veterinary Information Network. No publication date nor language restrictions were applied. Randomised and not randomised controlled clinical trials comparing PRP with placebo or with other treatments were included. The reduction of open wound area in PRP-treated (test) wounds compared to control wounds was the primary outcome. Secondary outcomes were healing time and number of healed cases in test group compared to control. The following effect sizes were calculated: the Hedges' g for continuous variables; the odds ratio for binary data. Eighteen controlled clinical trials were included in the qualitative and quantitative synthesis, with a total of 661 wounds. All studies were published in the period 2007-2016. Eight studies were carried out on rodent/lagomorph mammals and 10 on non-rodent/lagomorph mammals. In all included studies, control wounds underwent placebo or were left untreated. The PRP group showed a better healing performance than the control group in each outcome. The effect size was statistically significant considering the primary outcome and the overall aggregation of the three outcomes. The effect size, although in favour of the treatment with PRP, was not significant considering the healing time and the number of healings. The overall heterogeneity was mild or moderate. Five studies reported a high risk of selection bias. The publication bias was always mild or absent. The results support the hypothesis of the positive effects of the PRP when compared to control groups in the treatment of experimentally-induced full-thickness skin wounds in animals. PRP can therefore be considered an effective adjunctive therapy in stimulating second intention healing of acute wounds in healthy animals. PMID- 29324849 TI - The B cell death function of obinutuzumab-HDEL produced in plant (Nicotiana benthamiana L.) is equivalent to obinutuzumab produced in CHO cells. AB - Plants have attracted attention as bio-drug production platforms because of their economical and safety benefits. The preliminary efficacy of ZMapp, a cocktail of antibodies produced in N. benthamiana (Nicotiana benthamiana L.), suggested plants may serve as a platform for antibody production. However, because the amino acid sequences of the Fab fragment are diverse and differences in post transcriptional processes between animals and plants remain to be elucidated, it is necessary to confirm functional equivalence of plant-produced antibodies to the original antibody. In this study, Obinutuzumab, a third generation anti-CD20 antibody, was produced in N. benthamiana leaves (plant-obinutuzumab) and compared to the original antibody produced in glyco-engineered Chinese hamster ovary (CHO) cells (CHO-obinutuzumab). Two forms (with or without an HDEL tag) were generated and antibody yields were compared. The HDEL-tagged form was more highly expressed than the non-HDEL-tagged form which was cleaved in the N-terminus. To determine the equivalence in functions of the Fab region between the two forms, we compared the CD20 binding affinities and direct binding induced cell death of a CD20 positive B cells. Both forms showed similar CD20 binding affinities and direct cell death of B cell. The results suggested that plant-obinutuzumab was equivalent to CHO-obinutuzumab in CD20 binding, cell aggregation, and direct cell death via binding. Therefore, our findings suggest that Obinutuzumab is a promising biosimilar candidate that can be produced efficiently in plants. PMID- 29324850 TI - Generalization of the Ewens sampling formula to arbitrary fitness landscapes. AB - In considering evolution of transcribed regions, regulatory sequences, and other genomic loci, we are often faced with a situation in which the number of allelic states greatly exceeds the size of the population. In this limit, the population eventually adopts a steady state characterized by mutation-selection-drift balance. Although new alleles continue to be explored through mutation, the statistics of the population, and in particular the probabilities of seeing specific allelic configurations in samples taken from the population, do not change with time. In the absence of selection, the probabilities of allelic configurations are given by the Ewens sampling formula, widely used in population genetics to detect deviations from neutrality. Here we develop an extension of this formula to arbitrary fitness distributions. Although our approach is general, we focus on the class of fitness landscapes, inspired by recent high throughput genotype-phenotype maps, in which alleles can be in several distinct phenotypic states. This class of landscapes yields sampling probabilities that are computationally more tractable and can form a basis for inference of selection signatures from genomic data. Using an efficient numerical implementation of the sampling probabilities, we demonstrate that, for a sizable range of mutation rates and selection coefficients, the steady-state allelic diversity is not neutral. Therefore, it may be used to infer selection coefficients, as well as other evolutionary parameters from population data. We also carry out numerical simulations to challenge various approximations involved in deriving our sampling formulas, such as the infinite-allele limit and the "full connectivity" assumption inherent in the Ewens theory, in which each allele can mutate into any other allele. We find that, at least for the specific numerical examples studied, our theory remains sufficiently accurate even if these assumptions are relaxed. Thus our framework establishes both theoretical and practical foundations for inferring selection signatures from population level genomic sequence samples. PMID- 29324851 TI - Development and validation of the Vietnamese primary care assessment tool. AB - OBJECTIVE: To adapt the consumer version of the Primary Care Assessment Tool (PCAT) for Vietnam and determine its internal consistency and validity. DESIGN: A quantitative cross sectional study. SETTING: 56 communes in 3 representative provinces of central Vietnam. PARTICIPANTS: Total of 3289 people who used health care services at health facility at least once over the past two years. RESULTS: The Vietnamese adult expanded consumer version of the PCAT (VN PCAT-AE) is an instrument for evaluation of primary care in Vietnam with 70 items comprising six scales representing four core primary care domains, and three additional scales representing three derivative domains. Sixteen other items from the original tool were not included in the final instrument, due to problems with missing values, floor or ceiling effects, and item-total correlations. All the retained scales have a Cronbach's alpha above 0.70 except for the subscale of Family Centeredness. CONCLUSIONS: The VN PCAT-AE demonstrates adequate internal consistency and validity to be used as an effective tool for measuring the quality of primary care in Vietnam from the consumer perspective. Additional work in the future to optimize valid measurement in all domains consistent with the original version of the tool may be helpful as the primary care system in Vietnam further develops. PMID- 29324852 TI - Real-life helping behaviours in North America: A genome-wide association approach. AB - In humans, prosocial behaviour is essential for social functioning. Twin studies suggest this distinct human trait to be partly hardwired. In the last decade research on the genetics of prosocial behaviour focused on neurotransmitters and neuropeptides, such as oxytocin, dopamine, and their respective pathways. Recent trends towards large scale medical studies targeting the genetic basis of complex diseases such as Alzheimer's disease and schizophrenia pave the way for new directions also in behavioural genetics. Based on data from 10,713 participants of the American Health and Retirement Study we estimated heritability of helping behaviour-its total variance explained by 1.2 million single nucleotide polymorphisms-to be 11%. Both, fixed models and mixed linear models identified rs11697300, an intergene variant on chromosome 20, as a candidate variant moderating this particular helping behaviour. We assume that this so far undescribed area is worth further investigation in association with human prosocial behaviour. PMID- 29324853 TI - Disentangling and modeling interactions in fish with burst-and-coast swimming reveal distinct alignment and attraction behaviors. AB - The development of tracking methods for automatically quantifying individual behavior and social interactions in animal groups has open up new perspectives for building quantitative and predictive models of collective behavior. In this work, we combine extensive data analyses with a modeling approach to measure, disentangle, and reconstruct the actual functional form of interactions involved in the coordination of swimming in Rummy-nose tetra (Hemigrammus rhodostomus). This species of fish performs burst-and-coast swimming behavior that consists of sudden heading changes combined with brief accelerations followed by quasi passive, straight decelerations. We quantify the spontaneous stochastic behavior of a fish and the interactions that govern wall avoidance and the reaction to a neighboring fish, the latter by exploiting general symmetry constraints for the interactions. In contrast with previous experimental works, we find that both attraction and alignment behaviors control the reaction of fish to a neighbor. We then exploit these results to build a model of spontaneous burst-and-coast swimming and interactions of fish, with all parameters being estimated or directly measured from experiments. This model quantitatively reproduces the key features of the motion and spatial distributions observed in experiments with a single fish and with two fish. This demonstrates the power of our method that exploits large amounts of data for disentangling and fully characterizing the interactions that govern collective behaviors in animals groups. PMID- 29324854 TI - Characterization of the biosynthetic gene cluster for cryptic phthoxazolin A in Streptomyces avermitilis. AB - Phthoxazolin A, an oxazole-containing polyketide, has a broad spectrum of anti oomycete activity and herbicidal activity. We recently identified phthoxazolin A as a cryptic metabolite of Streptomyces avermitilis that produces the important anthelmintic agent avermectin. Even though genome data of S. avermitilis is publicly available, no plausible biosynthetic gene cluster for phthoxazolin A is apparent in the sequence data. Here, we identified and characterized the phthoxazolin A (ptx) biosynthetic gene cluster through genome sequencing, comparative genomic analysis, and gene disruption. Sequence analysis uncovered that the putative ptx biosynthetic genes are laid on an extra genomic region that is not found in the public database, and 8 open reading frames in the extra genomic region could be assigned roles in the biosynthesis of the oxazole ring, triene polyketide and carbamoyl moieties. Disruption of the ptxA gene encoding a discrete acyltransferase resulted in a complete loss of phthoxazolin A production, confirming that the trans-AT type I PKS system is responsible for the phthoxazolin A biosynthesis. Based on the predicted functional domains in the ptx assembly line, we propose the biosynthetic pathway of phthoxazolin A. PMID- 29324856 TI - Correction: Minimally invasive monitoring of CD4 T cells at multiple mucosal tissues after intranasal vaccination in rhesus macaques. AB - [This corrects the article DOI: 10.1371/journal.pone.0188807.]. PMID- 29324855 TI - CTLs, a new class of RING-H2 ubiquitin ligases uncovered by YEELL, a motif close to the RING domain that is present across eukaryotes. AB - RING ubiquitin E3 ligases enclose a RING domain for ubiquitin ligase activity and associated domains and/or conserved motifs outside the RING domain that collectively facilitate their classification and usually reveal some of key information related to mechanism of action. Here we describe a new family of E3 ligases that encodes a RING-H2 domain related in sequence to the ATL and BTL RING H2 domains. This family, named CTL, encodes a motif designed as YEELL that expands 21 amino acids next to the RING-H2 domain that is present across most eukaryotic lineages. E3 ubiquitin ligase BIG BROTHER is a plant CTL that regulates organ size, and SUMO-targeted ubiquitin E3 ligase RNF111/ARKADIA is a vertebrate CTL. Basal animal and vertebrate, as well as fungi species, encode a single CTL gene that constraints the number of paralogs observed in vertebrates. Conversely, as previously described in ATL and BTL families in plants, CTL genes range from a single copy in green algae and 3 to 5 copies in basal species to 9 to 35 copies in angiosperms. Our analysis describes key structural features of a novel family of E3 ubiquitin ligases as an integral component of the set of core eukaryotic genes. PMID- 29324857 TI - Allergic rhinitis and rhinosinusitis synergistically compromise the mental health and health-related quality of life of Korean adults: A nationwide population based survey. AB - BACKGROUND: Allergic rhinitis (AR) and rhinosinusitis (RS) negatively impact psychological well-being and health-related quality of life (HRQoL). However, few population-based studies have investigated the effects of these conditions on mental health and HRQoL. PURPOSE: To explore independent associations of AR and/or RS with mental health and HRQoL using data from the 2013-2015 Korea National Health and Nutrition Examination Survey (KNHANES). METHODS: The KNHANES is a nationwide cross-sectional survey of the non-institutionalized population of Korea. A total of 15,441 adults completed the clinical examination and the health questionnaire. We divided all participants into four groups: AR-/RS-, AR-/RS+, AR+/RS-, and AR+/RS+. Logistic regression analyses were performed after adjustment for sociodemographic characteristics, general health behaviors, and other comorbidities. RESULTS: The AR+/RS+ group contained the highest proportion of subjects with perceived stress and depressed mood. Subjects with AR+/RS+ also had more frequent problems in terms of pain/discomfort and anxiety/depression. After adjusting for all confounders, the odds ratios (ORs) were 2.96 (p = 0.009) for depressed mood and 3.17 (p = 0.013) for suicidal ideation in the AR+/RS+ group compared with in the AR-/RS- group. The AR+/RS- group reported more perceived stress (OR, 1.56, p = 0.003) and depression (OR, 1.72, p = 0.024) compared with the AR-/RS- group. In terms of the ORs for HRQoL, the AR+/RS+ group reported more problems in terms of self-care (OR, 3.73, p = 0.038) and more pain/discomfort (OR 2.19, p = 0.006) compared with the AR-/RS- group. CONCLUSIONS: In the Korean population, AR and RS exerted a synergistic negative impact on mental health and HRQoL, especially suicidal ideation. Most patients seek help from clinicians for impaired HRQoL. Therefore, clinicians should consider the underlying mental health and HRQoL of patients with AR and/or RS, as these may be impaired by their conditions. PMID- 29324860 TI - Correction: Polygalacturonase gene pgxB in Aspergillus niger is a virulence factor in apple fruit. AB - [This corrects the article DOI: 10.1371/journal.pone.0173277.]. PMID- 29324858 TI - Mapping the geographical distribution of podoconiosis in Cameroon using parasitological, serological, and clinical evidence to exclude other causes of lymphedema. AB - BACKGROUND: Podoconiosis is a non-filarial elephantiasis, which causes massive swelling of the lower legs. It was identified as a neglected tropical disease by WHO in 2011. Understanding of the geographical distribution of the disease is incomplete. As part of a global mapping of podoconiosis, this study was conducted in Cameroon to map the distribution of the disease. This mapping work will help to generate data on the geographical distribution of podoconiosis in Cameroon and contribute to the global atlas of podoconiosis. METHODS: We used a multi-stage sampling design with stratification of the country by environmental risk of podoconiosis. We sampled 76 villages from 40 health districts from the ten Regions of Cameroon. All individuals of 15-years old or older in the village were surveyed house-to-house and screened for lymphedema. A clinical algorithm was used to reliably diagnose podoconiosis, excluding filarial-associated lymphedema. Individuals with lymphoedema were tested for circulating Wuchereria bancrofti antigen and specific IgG4 using the Alere Filariasis Test Strips (FTS) test and the Standard Diagnostics (SD) BIOLINE lymphatic filariasis IgG4 test (Wb123) respectively, in addition to thick blood films. Presence of DNA specific to W. bancrofti was checked on night blood using a qPCR technique. PRINCIPAL FINDINGS: Overall, 10,178 individuals from 4,603 households participated in the study. In total, 83 individuals with lymphedema were identified. Of the 83 individuals with lymphedema, two were found to be FTS positive and all were negative using the Wb123 test. No microfilaria of W. bancrofti were found in the night blood of any individual with clinical lymphedema. None were found to be positive for W. bancrofti using qPCR. Of the two FTS positive cases, one was positive for Mansonella perstans DNA, while the other harbored Loa loa microfilaria. Overall, 52 people with podoconiosis were identified after applying the clinical algorithm. The overall prevalence of podoconiosis was found to be 0.5% (95% [confidence interval] CI; 0.4-0.7). At least one case of podoconiosis was found in every region of Cameroon except the two surveyed villages in Adamawa. Of the 40 health districts surveyed, 17 districts had no cases of podoconiosis; in 15 districts, mean prevalence was between 0.2% and 1.0%; and in the remaining eight, mean prevalence was between 1.2% and 2.7%. CONCLUSIONS: Our investigation has demonstrated low prevalence but almost nationwide distribution of podoconiosis in Cameroon. Designing a podoconiosis control program is a vital next step. A health system response to the burden of podoconiosis is important, through case surveillance and morbidity management services. PMID- 29324859 TI - Magnetic resonance spectroscopy detects differential lipid composition in mammary glands on low fat, high animal fat versus high fructose diets. AB - The effects of consumption of different diets on the fatty acid composition in the mammary glands of SV40 T-antigen (Tag) transgenic mice, a well-established model of human triple-negative breast cancer, were investigated with magnetic resonance spectroscopy and spectroscopic imaging. Female C3(1) SV40 Tag transgenic mice (n = 12) were divided into three groups at 4 weeks of age: low fat diet (LFD), high animal fat diet (HAFD), and high fructose diet (HFruD). MRI scans of mammary glands were acquired with a 9.4 T scanner after 8 weeks on the diet. 1H spectra were acquired using point resolved spectroscopy (PRESS) from two 1 mm3 boxes on each side of inguinal mammary gland with no cancers, lymph nodes, or lymph ducts. High spectral and spatial resolution (HiSS) images were also acquired from nine 1-mm slices. A combination of Gaussian and Lorentzian functions was used to fit the spectra. The percentages of poly-unsaturated fatty acids (PUFA), mono-unsaturated fatty acids (MUFA), and saturated fatty acids (SFA) were calculated from each fitted spectrum. Water and fat peak height images (maps) were generated from HiSS data. The results showed that HAFD mice had significantly lower PUFA than both LFD (p < 0.001) and HFruD (p < 0.01) mice. The mammary lipid quantity calculated from 1H spectra was much larger in HAFD mice than in LFD (p = 0.03) but similar to HFruD mice (p = 0.10). The average fat signal intensity over the mammary glands calculated from HiSS fat maps was ~60% higher in HAFD mice than in LFD (p = 0.04) mice. The mean or median of calculated parameters for the HFruD mice were between those for LFD and HAFD mice. Therefore, PRESS spectroscopy and HiSS MRI demonstrated water and fat composition changes in mammary glands due to a Western diet, which was low in potassium, high in sodium, animal fat, and simple carbohydrates. Measurements of PUFA with MRI could be used to evaluate cancer risk, improve cancer detection and diagnosis, and guide preventative therapy. PMID- 29324861 TI - Cost of treatment for head and neck cancer in India. AB - There are no published data on the cost of cancer treatment for guiding reimbursement decisions in India. The present study was designed to estimate the cost of treating head and neck cancer (HNC) with the aim of determining package rates. The present study was undertaken in the Departments of Radiotherapy and Otolaryngology of a large tertiary care hospital in North India. Economic health system costs incurred were assessed using a bottom-up methodology. Data on all resources-capital or recurrent, incurred on the delivery of HNC treatment were collected from April 2014 to March 2015. Following the cost-of-illness approach, patients were interviewed to elicit out-of-pocket (OOP) expenditure. A total of INR 40,993,017 (USD 0.67 million) was spent on radiotherapy care for treating HNC during 1 year. Salaries constituted the major component (42.6%) of this cost, followed by equipment/furniture (29%), space rent (20.7%), overheads and consumables (7.7%). In addition, INR 47,191 (USD 773) per HNC patient was spent on the surgery. Furthermore, patients spent an average amount ranging from INR 12,575 (USD 206) to INR 65,257 (USD 1069) on the different treatment therapies. In terms of package rates, cobalt radiotherapy alone was the cheapest (INR 38,714, USD 634), while intensity modulated radiotherapy (IMRT) was most expensive (INR 192,914, USD 3161). The estimates from the present study could be used for developing package rates under various publicly financed health insurance schemes as well as for the planning for creation of new cancer centres. PMID- 29324863 TI - Correction: Orion: Detecting regions of the human non-coding genome that are intolerant to variation using population genetics. AB - [This corrects the article DOI: 10.1371/journal.pone.0181604.]. PMID- 29324862 TI - Taking two to tango: fMRI analysis of improvised joint action with physical contact. AB - Many forms of joint action involve physical coupling between the participants, such as when moving a sofa together or dancing a tango. We report the results of a novel two-person functional MRI study in which trained couple dancers engaged in bimanual contact with an experimenter standing next to the bore of the magnet, and in which the two alternated between being the leader and the follower of joint improvised movements. Leading showed a general pattern of self-orientation, being associated with brain areas involved in motor planning, navigation, sequencing, action monitoring, and error correction. In contrast, following showed a far more sensory, externally-oriented pattern, revealing areas involved in somatosensation, proprioception, motion tracking, social cognition, and outcome monitoring. We also had participants perform a "mutual" condition in which the movement patterns were pre-learned and the roles were symmetric, thereby minimizing any tendency toward either leading or following. The mutual condition showed greater activity in brain areas involved in mentalizing and social reward than did leading or following. Finally, the analysis of improvisation revealed the dual importance of motor-planning and working-memory areas. We discuss these results in terms of theories of both joint action and improvisation. PMID- 29324865 TI - Association of circadian rhythm genes ARNTL/BMAL1 and CLOCK with multiple sclerosis. AB - Prevalence of multiple sclerosis varies with geographic latitude. We hypothesized that this fact might be partially associated with the influence of latitude on circadian rhythm and consequently that genetic variability of key circadian rhythm regulators, ARNTL and CLOCK genes, might contribute to the risk for multiple sclerosis. Our aim was to analyse selected polymorphisms of ARNTL and CLOCK, and their association with multiple sclerosis. A total of 900 Caucasian patients and 1024 healthy controls were compared for genetic signature at 8 SNPs, 4 for each of both genes. We found a statistically significant difference in genotype (ARNTL rs3789327, P = 7.5.10-5; CLOCK rs6811520 P = 0.02) distributions in patients and controls. The ARNTL rs3789327 CC genotype was associated with higher risk for multiple sclerosis at an OR of 1.67 (95% CI 1.35-2.07, P = 0.0001) and the CLOCK rs6811520 genotype CC at an OR of 1.40 (95% CI 1.13-1.73, P = 0.002). The results of this study suggest that genetic variability in the ARNTL and CLOCK genes might be associated with risk for multiple sclerosis. PMID- 29324866 TI - Regulation of influenza virus replication by Wnt/beta-catenin signaling. AB - Wnt/beta-catenin signaling is an essential pathway in cell cycle control. Dysregulation of the Wnt/beta-catenin signaling pathway during viral infection has been reported. In this study, we examined the effect of modulating Wnt/beta catenin signaling during influenza virus infection. The activation of the Wnt/beta-catenin pathway by Wnt3a increased influenza virus mRNA and virus production in in vitro in mouse lung epithelial E10 cells and mRNA expresson of influenza virus genes in vivo in the lungs of mice infected with influenza virus A/Puerto Rico/8/34. However, the inhibition of Wnt/beta-catenin signaling by iCRT14 reduced virus titer and viral gene expression in human lung epithelial A549 cells and viral replication in primary mouse alveolar epithelial cells infected with different influenza virus strains. Knockdown of beta-catenin also reduced viral protein expression and virus production. iCRT14 acts at the early stage of virus replication. Treatment with iCRT14 inhibited the expression of the viral genes (vRNA, cRNA and mRNA) evaluated in this study. The intraperitoneal administration of iCRT14 reduced viral load, improved clinical signs, and partially protected mice from influenza virus infection. PMID- 29324864 TI - Safety of single low-dose primaquine in glucose-6-phosphate dehydrogenase deficient falciparum-infected African males: Two open-label, randomized, safety trials. AB - BACKGROUND: Primaquine (PQ) actively clears mature Plasmodium falciparum gametocytes but in glucose-6-phosphate dehydrogenase deficient (G6PDd) individuals can cause hemolysis. We assessed the safety of low-dose PQ in combination with artemether-lumefantrine (AL) or dihydroartemisinin-piperaquine (DP) in G6PDd African males with asymptomatic P. falciparum malaria. METHODS AND FINDINGS: In Burkina Faso, G6PDd adult males were randomized to treatment with AL alone (n = 10) or with PQ at 0.25 (n = 20) or 0.40 mg/kg (n = 20) dosage; G6PD normal males received AL plus 0.25 (n = 10) or 0.40 mg/kg (n = 10) PQ. In The Gambia, G6PDd adult males and boys received DP alone (n = 10) or with 0.25 mg/kg PQ (n = 20); G6PD-normal males received DP plus 0.25 (n = 10) or 0.40 mg/kg (n = 10) PQ. The primary study endpoint was change in hemoglobin concentration during the 28-day follow-up. Cytochrome P-450 isoenzyme 2D6 (CYP2D6) metabolizer status, gametocyte carriage, haptoglobin, lactate dehydrogenase levels and reticulocyte counts were also determined. In Burkina Faso, the mean maximum absolute change in hemoglobin was -2.13 g/dL (95% confidence interval [CI], -2.78, -1.49) in G6PDd individuals randomized to 0.25 PQ mg/kg and -2.29 g/dL (95% CI, -2.79, -1.79) in those receiving 0.40 PQ mg/kg. In The Gambia, the mean maximum absolute change in hemoglobin concentration was -1.83 g/dL (95% CI, -2.19, -1.47) in G6PDd individuals receiving 0.25 PQ mg/kg. After adjustment for baseline concentrations, hemoglobin reductions in G6PDd individuals in Burkina Faso were more pronounced compared to those in G6PD-normal individuals receiving the same PQ doses (P = 0.062 and P = 0.022, respectively). Hemoglobin levels normalized during follow-up. Abnormal haptoglobin and lactate dehydrogenase levels provided additional evidence of mild transient hemolysis post-PQ. CONCLUSIONS: Single low dose PQ in combination with AL and DP was associated with mild and transient reductions in hemoglobin. None of the study participants developed moderate or severe anemia; there were no severe adverse events. This indicates that single low-dose PQ is safe in G6PDd African males when used with artemisinin-based combination therapy. TRIAL REGISTRATION: Clinicaltrials.gov NCT02174900 Clinicaltrials.gov NCT02654730. PMID- 29324867 TI - Comparative transcriptome analysis reveals key genes potentially related to soluble sugar and organic acid accumulation in watermelon. AB - Soluble sugars and organic acids are important components of fruit flavor and have a strong impact on the overall organoleptic quality of watermelon (Citrullus lanatus) fruit. Several studies have analyzed the expression levels of the genes related to soluble sugar accumulation and the dynamic changes in their content during watermelon fruit development and ripening. Nevertheless, to date, there have been no reports on the organic acid content in watermelon or the genes regulating their synthesis. In this study, the soluble sugars and organic acids in watermelon were measured and a comparative transcriptome analysis was performed to identify the key genes involved in the accumulation of these substances during fruit development and ripening. The watermelon cultivar '203Z' and its near-isogenic line (NIL) 'SW' (in the '203Z' background) were used as experimental materials. The results suggested that soluble sugar consist of fructose, glucose and sucrose while malic-, citric-, and oxalic acids are the primary organic acids in watermelon fruit. Several differentially expressed genes (DEGs) related to soluble sugar- and organic acid accumulation and metabolism were identified. These include the DEGs encoding raffinose synthase, sucrose synthase (SuSy), sucrose-phosphate synthase (SPSs), insoluble acid invertases (IAI), NAD-dependent malate dehydrogenase (NAD-cyt MDH), aluminum-activated malate transporter (ALMT), and citrate synthase (CS). This is the first report addressing comparative transcriptome analysis via NILs materials in watermelon fruit. These findings provide an important basis for understanding the molecular mechanism that leads to soluble sugar and organic acid accumulation and metabolism during watermelon fruit development and ripening. PMID- 29324868 TI - Effects of pulsed electromagnetic field (PEMF) on the tensile biomechanical properties of diabetic wounds at different phases of healing. AB - The present study investigated the effects of pulsed electromagnetic field (PEMF) on the tensile biomechanical properties of diabetic wounds at different phases of healing. Two intensities of PEMF were adopted for comparison. We randomly assigned 111 10-week-old male streptozotocin-induced diabetic Sprague-Dawley rats to two PEMF groups and a sham control group. Six-millimetre biopsy punched full thickness wounds were made on the lateral side of their hindlimbs. The PEMF groups received active PEMF delivered at 25 Hz with intensity of either 2 mT or 10 mT daily, while the sham group was handled in a similar way except they were not exposed to PEMF. Wound tissues were harvested for tensile testing on post wounding days 3, 5, 7, 10, 14 and 21. Maximum load, maximum stress, energy absorption capacity, Young's modulus and thickness of wound tissue were measured. On post-wounding day 5, the PEMF group that received 10-mT intensity had significantly increased energy absorption capacity and showed an apparent increase in the maximum load. However, the 10-mT PEMF group demonstrated a decrease in Young's modulus on day 14. The 10-mT PEMF groups showed a significant increase in the overall thickness of wound tissue whereas the 2-mT group showed a significant decrease in the overall maximum stress of the wounds tissue. The present findings demonstrated that the PEMF delivered at 10 mT can improve energy absorption capacity of diabetic wounds in the early healing phase. However, PEMF (both 2-mT and 10-mT) seemed to impair the material properties (maximum stress and Young's modulus) in the remodelling phase. PEMF may be a useful treatment for promoting the recovery of structural properties (maximum load and energy absorption capacity), but it might not be applied at the remodelling phase to avoid impairing the recovery of material properties. PMID- 29324869 TI - Exploring the binding sites and binding mechanism for hydrotrope encapsulated griseofulvin drug on gamma-tubulin protein. AB - The protein gamma-tubulin plays an important role in centrosomal clustering and this makes it an attractive therapeutic target for treating cancers. Griseofulvin, an antifungal drug, has recently been used to inhibit proliferation of various types of cancer cells. It can also affect the microtubule dynamics by targeting the gamma-tubulin protein. So far, the binding pockets of gamma-tubulin protein are not properly identified and the exact mechanism by which the drug binds to it is an area of intense speculation and research. The aim of the present study is to investigate the binding mechanism and binding affinity of griseofulvin on gamma-tubulin protein using classical molecular dynamics simulations. Since the drug griseofulvin is sparingly soluble in water, here we also present a promising approach for formulating and achieving delivery of hydrophobic griseofulvin drug via hydrotrope sodium cumene sulfonate (SCS) cluster. We observe that the binding pockets of gamma-tubulin protein are mainly formed by the H8, H9 helices and S7, S8, S14 strands and the hydrophobic interactions between the drug and gamma-tubulin protein drive the binding process. The release of the drug griseofulvin from the SCS cluster is confirmed by the coordination number analysis. We also find hydrotrope-induced alteration of the binding sites of gamma-tubulin protein and the weakening of the drug protein interactions. PMID- 29324870 TI - Incretin responses to oral glucose and mixed meal tests and changes in fasting glucose levels during 7 years of follow-up: The Hoorn Meal Study. AB - We conducted the first prospective observational study in which we examined the association between incretin responses to an oral glucose tolerance test (OGTT) and mixed meal test (MMT) at baseline and changes in fasting glucose levels 7 years later, in individuals who were non-diabetic at baseline. We used data from the Hoorn Meal Study; a population-based cohort study among 121 subjects, aged 61.0+/-6.7y. GIP and GLP-1 responses were determined at baseline and expressed as total and incremental area under the curve (tAUC and iAUC). The association between incretin response at baseline and changes in fasting glucose levels was assessed using linear regression. The average change in glucose over 7 years was 0.43 +/- 0.5 mmol/l. For GIP, no significant associations were observed with changes in fasting glucose levels. In contrast, participants within the middle and highest tertile of GLP-1 iAUC responses to OGTT had significantly smaller increases (actually decreases) in fasting glucose levels; -0.28 (95% confidence interval: -0.54;-0.01) mmol/l and -0.39 (-0.67;-0.10) mmol/l, respectively, compared to those in the lowest tertile. The same trend was observed for tAUC GLP 1 following OGTT (highest tertile: -0.32 (0.61;-0.04) mmol/l as compared to the lowest tertile). No significant associations were observed for GLP-1 responses following MMT. In conclusion, within our non-diabetic population-based cohort, a low GLP-1 response to OGTT was associated with a steeper increase in fasting glucose levels during 7 years of follow-up. This suggests that a reduced GLP-1 response precedes glucose deterioration and may play a role in the etiology of type 2 diabetes mellitus. PMID- 29324872 TI - lin-4 and the NRDE pathway are required to activate a transgenic lin-4 reporter but not the endogenous lin-4 locus in C. elegans. AB - As the founding member of the microRNA (miRNA) gene family, insights into lin-4 regulation and function have laid a conceptual foundation for countless miRNA related studies that followed. We previously showed that a transcriptional lin-4 reporter in C. elegans was positively regulated by a lin-4-complementary element (LCE), and by lin-4 itself. In this study, we sought to (1) identify additional factors required for lin-4 reporter expression, and (2) validate the endogenous relevance of a potential positive autoregulatory mechanism of lin-4 expression. We report that all four core nuclear RNAi factors (nrde-1, nrde-2, nrde-3 and nrde-4), positively regulate lin-4 reporter expression. In contrast, endogenous lin-4 levels were largely unaffected in nrde-2;nrde-3 mutants. Further, an endogenous LCE deletion generated by CRISPR-Cas9 revealed that the LCE was also not necessary for the activity of the endogenous lin-4 promoter. Finally, mutations in mature lin-4 did not reduce primary lin-4 transcript levels. Taken together, these data indicate that under growth conditions that reveal effects at the transgenic locus, a direct, positive autoregulatory mechanism of lin-4 expression does not occur in the context of the endogenous lin-4 locus. PMID- 29324871 TI - Citrullinated histone H3 as a novel prognostic blood marker in patients with advanced cancer. AB - Citrullinated histone H3 (H3Cit) is a central player in the neutrophil release of nuclear chromatin, known as neutrophil extracellular traps (NETs). NETs have been shown to elicit harmful effects on the host, and were recently proposed to promote tumor progression and spread. Here we report significant elevations of plasma H3Cit in patients with advanced cancer compared with age-matched healthy individuals. These elevations were specific to cancer patients as no increase was observed in severely ill and hospitalized patients with a higher non-malignant comorbidity. The analysis of neutrophils from cancer patients showed a higher proportion of neutrophils positive for intracellular H3Cit compared to severely ill patients. Moreover, the presence of plasma H3Cit in cancer patients strongly correlated with neutrophil activation markers neutrophil elastase (NE) and myeloperoxidase (MPO), and the inflammatory cytokines interleukin-6 and -8, known to induce NETosis. In addition, we show that high levels of circulating H3Cit strongly predicted poor clinical outcome in our cohort of cancer patients with a 2-fold increased risk for short-term mortality. Our results also corroborate the association of NE, interleukin-6 and -8 with poor clinical outcome. Taken together, our results are the first to unveil H3Cit as a potential diagnostic and prognostic blood marker associated with an exacerbated inflammatory response in patients with advanced cancer. PMID- 29324873 TI - A new strength assessment to evaluate the association between muscle weakness and gait pathology in children with cerebral palsy. AB - AIM: The main goal of this validation study was to evaluate whether lower limb muscle weakness and plantar flexor rate of force development (RFD) related to altered gait parameters in children with cerebral palsy (CP), when weakness was assessed with maximal voluntary isometric contractions (MVICs) in a gait related test position. As a subgoal, we analyzed intra- and intertester reliability of this new strength measurement method. METHODS: Part 1 -Intra- and intertester reliability were determined with the intra-class correlation coefficient (ICC2,1) in 10 typical developing (TD) children (age: 5-15). We collected MVICs in four lower limb muscle groups to define maximum joint torques, as well as plantar flexor RFD. Part 2 -Validity of the strength assessment was explored by analyzing the relations of lower limb joint torques and RFD to a series of kinematic- and kinetic gait features, the GDI (gait deviation index), and the GDI-kinetic in 23 children with CP (GMFCS I-II; age: 5-15) and 23 TD children (age: 5-15) with Spearman's rank correlation coefficients. RESULTS: Part 1 -The best reliability was found for the torque data (Nm), with the highest ICC2,1 (0.951) for knee extension strength (inter) and the lowest (0.693) for dorsiflexion strength (intra). For plantar flexor RFD, the most reliable window size was 300 milliseconds (ICC2,1: 0.828 (inter) and 0.692 (intra)). Part 2 -The children with CP were significantly weaker than the TD children (p <0.001). Weakness of the dorsiflexors and plantar flexors associated with delayed and decreased knee flexion angle during swing, respectively. No other significant correlations were found. CONCLUSION: While our new strength assessment was reliable, intra-joint correlations between weakness, RFD, and gait deviations were low. However, we found inter-joint associations, reflected by a strong association between plantar and dorsiflexor weakness, and decreased and delayed knee flexion angle during swing. PMID- 29324874 TI - Clinical risk stratification model for advanced colorectal neoplasia in persons with negative fecal immunochemical test results. AB - OBJECTIVES: The fecal immunochemical test (FIT) has low sensitivity for detecting advanced colorectal neoplasia (ACRN); thus, a considerable portion of FIT negative persons may have ACRN. We aimed to develop a risk-scoring model for predicting ACRN in FIT-negative persons. MATERIALS AND METHODS: We reviewed the records of participants aged >=40 years who underwent a colonoscopy and FIT during a health check-up. We developed a risk-scoring model for predicting ACRN in FIT-negative persons. RESULTS: Of 11,873 FIT-negative participants, 255 (2.1%) had ACRN. On the basis of the multivariable logistic regression model, point scores were assigned as follows among FIT-negative persons: age (per year from 40 years old), 1 point; current smoker, 10 points; overweight, 5 points; obese, 7 points; hypertension, 6 points; old cerebrovascular attack (CVA), 15 points. Although the proportion of ACRN in FIT-negative persons increased as risk scores increased (from 0.6% in the group with 0-4 points to 8.1% in the group with 35-39 points), it was significantly lower than that in FIT-positive persons (14.9%). However, there was no statistical difference between the proportion of ACRN in FIT-negative persons with >=40 points and in FIT-positive persons (10.5% vs. 14.9%, P = 0.321). CONCLUSIONS: FIT-negative persons may need to undergo screening colonoscopy if they clinically have a high risk of ACRN. The scoring model based on age, smoking habits, overweight or obesity, hypertension, and old CVA may be useful in selecting and prioritizing FIT-negative persons for screening colonoscopy. PMID- 29324875 TI - Effect of heat input on microstructure, wear and friction behavior of (wt.-%) 50FeCrC-20FeW-30FeB coating on AISI 1020 produced by using PTA welding. AB - In this study, AISI 1020 steel surface was coated in different heat inputs with (wt.-%) 50FeCrC-20FeW-30FeB powder mixture by using plasma transferred arc (PTA) welding method. The microstructure of the coated samples were investigated by using optical microscope (OM), scanning electron microscope (SEM), X-ray diffraction (XRD) and energy dispersive X-ray (EDS). The hardness was measured with micro hardness test device. The dry sliding wear and friction coefficient properties were determined using a block-on-disk type wear test device. Wear tests were performed at 19.62 N, 39.24 N, 58.86 N load and the sliding distance of 900 m. The results were shown that different microstructures formed due to the heat input change. The highest average micro hardness value was measured at 1217 HV on sample coated with low heat input. It was determined that the wear resistance decreased with increasing heat input. PMID- 29324876 TI - Correction: Different transferability of incompatibility (Inc) P-7 plasmid pCAR1 and IncP-1 plasmid pBP136 in stirring liquid conditions. AB - [This corrects the article DOI: 10.1371/journal.pone.0186248.]. PMID- 29324877 TI - Impact of extra-articular pathologies on groin pain: An arthroscopic evaluation. AB - PURPOSE: For patients who have anterior hip pain evaluated by Patrick's test and tenderness at Scarpa's triangle, we perform periarticular debridement based on the hypothesis that extra-articular pathologies are responsible for the hip pain. The purpose of this study was to categorize the endoscopic extra-articular findings and to evaluate the clinical significance of periarticular pathologies in anterior hip pain. METHODS: Arthroscopic findings of 77 patients who underwent periarthritic debridement were evaluated. As extra-articular pathologies, injuries of the direct head and reflective head of the rectus femoris muscle were evaluated. A thin layer of fat tissue normally exists on the anterior inferior iliac spine (AIIS), the attachment site of the direct head of the rectus femoris muscle. The macroscopic appearance of the fat pad on the AIIS was categorized as normal, blood vessel-rich adipose tissue or adipose tissue with fibrosis or scar formation and histologically confirmed. Adhesion of gluteal muscles to the joint capsule was also evaluated. RESULTS: Of the 77 patients, 75 had rupture of the direct head of the rectus femoris. In contrast, rupture of the reflective head was extremely rare. Seven patients had a normal fat pad on the AIIS, 11 had blood vessel-rich adipose tissue and 55 had adipose tissue with fibrosis. Fat tissue was completely replaced by fibrous scar tissue in another 4 patients. In 64 patients, adhesion between the anterior joint capsule and gluteus muscles was marked. Groin pain disappeared soon after the operation even when labral tears were not repaired and all patients returned to daily life and sports activities within 2 weeks after operation. CONCLUSION: Rectus femoris tendinosis, fibrosis of the AIIS fat pad, and adhesion of gluteal and rectus femoris muscles are common extra-articular pathologies in patients with anterior hip pain. Management of only these lesions induces rapid relief of anterior hip pain even in the absence of labral tear repair. My observations suggest that it is desirable to be aware of the presence of periarticular pathologies as a cause of groin pain. PMID- 29324878 TI - The curious case of APOBEC3 activation by cancer-associated human papillomaviruses. PMID- 29324879 TI - Localized zinc distribution in shark vertebrae suggests differential deposition during ontogeny and across vertebral structures. AB - The development of shark vertebrae and the possible drivers of inter- and intra specific differences in vertebral structure are poorly understood. Shark vertebrae are used to examine life-history traits related to trophic ecology, movement patterns, and the management of fisheries; a better understanding of their development would be beneficial to many fields of research that rely on these calcified structures. This study used Scanning X-ray Fluorescence Microscopy to observe zinc distribution within vertebrae of ten shark species from five different orders. Zinc was mostly localised within the intermedialis and was generally detected at levels an order of magnitude lower in the corpus calcareum. In most species, zinc concentrations were higher pre-birth mark, indicating a high rate of pre-natal zinc deposition. These results suggest there are inter-specific differences in elemental deposition within vertebrae. Since the deposition of zinc is physiologically-driven, these differences suggest that the processes of growth and deposition are potentially different in the intermedialis and corpus calcareum, and that caution should be taken when extrapolating information such as annual growth bands from one structure to the other. Together these results suggest that the high inter-specific variation in vertebral zinc deposition and associated physiologies may explain the varying effectiveness of ageing methodologies applied to elasmobranch vertebrae. PMID- 29324880 TI - EDAG promotes the expansion and survival of human CD34+ cells. AB - EDAG is multifunctional transcriptional regulator primarily expressed in the linloc-kit+Sca-1+ hematopoietic stem cells (HSC) and CD34+ progenitor cells. Previous studies indicate that EDAG is required for maintaining hematopoietic lineage commitment balance. Here using ex vivo culture and HSC transplantation models, we report that EDAG enhances the proliferative potential of human cord blood CD34+ cells, increases survival, prevents cell apoptosis and promotes their repopulating capacity. Moreover, EDAG overexpression induces rapid entry of CD34+ cells into the cell cycle. Gene expression profile analysis indicate that EDAG knockdown leads to down-regulation of various positive cell cycle regulators including cyclin A, B, D, and E. Together these data provides novel insights into EDAG in regulation of expansion and survival of human hematopoietic stem/progenitor cells. PMID- 29324882 TI - Correction: Color Doppler ultrasonography as an alternative tool for postoperative evaluation of collaterals after indirect revascularization surgery in Moyamoya disease. AB - [This corrects the article DOI: 10.1371/journal.pone.0188948.]. PMID- 29324881 TI - Genome-wide analysis and expression profiles of glyoxalase gene families in Chinese cabbage (Brassica rapa L). AB - The glyoxalase pathway is composed of glyoxalase I (GLYI) and glyoxalase II (GLYII) and is responsible for the detoxification of a cytotoxic metabolite methylglyoxal (MG) into the nontoxic S-D-lactoylglutathione. The two glyoxalase enzymes play a crucial role in stress tolerance in various plant species. Recently, the GLY gene families have well been analyzed in Arabidopsis, rice and soybean, however, little is known about them in Chinese cabbage (Brassica rapa). Here, 16 BrGLYI and 15 BrGLYII genes were identified in the B. rapa genome, and the BrGLYI and BrGLYII proteins were both clustered into five subfamilies. The classifications, chromosomal distributions, gene duplications, exon-intron structures, localizations, conserved motifs and promoter cis-elements were also predicted and analyzed. In addition, the expression pattern of these genes in different tissues and their response to biotic and abiotic stresses were analyzed using publicly available data and a quantitative real-time PCR analysis (RT qPCR). The results indicated that the expression profiles of BrGLY genes varied among different tissues. Notably, a number of BrGLY genes showed responses to biotic and abiotic stress treatments, including Plasmodiophora brassicae infection and various heavy metal stresses. Taken together, this study identifies BrGLYI and BrGLYII gene families in B. rapa and offers insight into their roles in plant development and stress resistance, especially in heavy metal stress tolerance and pathogen resistance. PMID- 29324883 TI - MASP-1 of the complement system enhances clot formation in a microvascular whole blood flow model. AB - The complement and coagulation systems closely interact with each other. These interactions are believed to contribute to the proinflammatory and prothrombotic environment involved in the development of thrombotic complications in many diseases. Complement MASP-1 (mannan-binding lectin-associated serine protease-1) activates coagulation factors and promotes clot formation. However, this was mainly shown in purified or plasma-based static systems. Here we describe the role of MASP-1 and complement activation in fibrin clot formation in a microvascular, whole blood flow model. This microfluidic system simulates blood flow through microvessels at physiological flow and shear rates and represents the closest model system to human physiology so far. It features parallel microchannels cultured with endothelial cells in a transparent microfluidic chip allowing real-time evaluation of clot formation by confocal microscopy. To test their effects on clot formation, we added the following activators or inhibitors (individually or in combination) to whole blood and performed perfusion experiments: rMASP-1cf (recombinant active form of MASP-1), complement activator zymosan, selective MASP-1 inhibitor SGMI-1 (based on the Schistocerca gregaria protease inhibitor scaffold), classical pathway inhibitor rSALO (recombinant salivary anti-complement from Lutzomyia longipalpis). Addition of rMASP-1cf resulted in accelerated fibrin clot formation while addition of SGMI-1 delayed it. Complement activation by zymosan led to increased clot formation and this effect was partially reversed by addition of rSALO and almost abolished in combination with SGMI-1. We show for the first time a strong influence of MASP-1, complement activation and pathway-specific inhibition on coagulation in a microvascular flow system that is closest to human physiology, further underpinning the in vivo relevance of coagulation and complement interactions. PMID- 29324885 TI - Correction: Expected population weight and diabetes impact of the 1-peso-per litre tax to sugar sweetened beverages in Mexico. AB - [This corrects the article DOI: 10.1371/journal.pone.0176336.]. PMID- 29324884 TI - A cross sectional study on Dutch layer farms to investigate the prevalence and potential risk factors for different Chlamydia species. AB - In poultry several Chlamydia species have been detected, but Chlamydia psittaci and Chlamydia gallinacea appear to be most prevalent and important. Chlamydia psittaci is a well-known zoonosis and is considered to be a pathogen of poultry. Chlamydia gallinacea has been described more recently. Its avian pathogenicity and zoonotic potential have to be further elucidated. Within the Netherlands no data were available on the presence of Chlamydia on poultry farms. As part of a surveillance programme for zoonotic pathogens in farm animals, we investigated pooled faecal samples from 151 randomly selected layer farms. On a voluntary base, 69 farmers, family members or farm workers from these 151 farms submitted a throat swab. All samples were tested with a generic 23S Chlamydiaceae PCR followed by a species specific PCR for C. avium, C. gallinacea and C. psittaci. C. avium and psittaci DNA was not detected at any of the farms. At 71 farms the positive result could be confirmed as C. gallinacea. Variables significantly associated with the presence of C. gallinacea in a final multivariable model were 'age of hens,' 'use of bedding material' and 'the presence of horses.' The presence of C. gallinacea was associated with neither clinical signs, varying from respiratory symptoms, nasal and ocular discharges to diarrhoea, nor with a higher mortality rate the day before the visit. All throat swabs from farmers, family members or farm workers tested negative for Chlamydia DNA, giving no further indication for possible bird-to-human (or human-to-bird) transmission. PMID- 29324886 TI - Changes in network connectivity during motor imagery and execution. AB - BACKGROUND: Recent studies of functional or effective connectivity in the brain have reported that motor-related brain regions were activated during motor execution and motor imagery, but the relationship between motor and cognitive areas has not yet been completely understood. The objectives of our study were to analyze the effective connectivity between motor and cognitive networks in order to define network dynamics during motor execution and motor imagery in healthy individuals. Second, we analyzed the differences in effective connectivity between correct and incorrect responses during motor execution and imagery using dynamic causal modeling (DCM) of electroencephalography (EEG) data. METHOD: Twenty healthy subjects performed a sequence of finger tapping trials using either motor execution or motor imagery, and the performances were recorded. Changes in effective connectivity between the primary motor cortex (M1), supplementary motor area (SMA), premotor cortex (PMC), and dorsolateral prefrontal cortex (DLPFC) were estimated using dynamic causal modeling. Bayesian model averaging with family-level inference and fixed-effects analysis was applied to determine the most likely connectivity model for these regions. RESULTS: Motor execution and imagery showed inputs to distinct brain regions, the premotor cortex and the supplementary motor area, respectively. During motor execution, the coupling strength of a feedforward network from the DLPFC to the PMC was greater than that during motor imagery. During motor imagery, the coupling strengths of a feedforward network from the PMC to the SMA and of a feedback network from M1 to the PMC were higher than that during motor execution. In imagined movement, although there were connectivity differences between correct and incorrect task responses, each motor imagery task that included correct and incorrect responses showed similar network connectivity characteristics. Correct motor imagery responses showed connectivity from the PMC to the DLPFC, while the incorrect responses had characteristic connectivity from the SMA to the DLPFC. CONCLUSIONS: These findings provide an understanding of effective connectivity between motor and cognitive areas during motor execution and imagery as well as the basis for future connectivity studies for patients with stroke. PMID- 29324887 TI - The "Tracked Roaming Transect" and distance sampling methods increase the efficiency of underwater visual censuses. AB - Underwater visual census (UVC) is the most common approach for estimating diversity, abundance and size of reef fishes in shallow and clear waters. Abundance estimation through UVC is particularly problematic in species occurring at low densities and/or highly aggregated because of their high variability at both spatial and temporal scales. The statistical power of experiments involving UVC techniques may be increased by augmenting the number of replicates or the area surveyed. In this work we present and test the efficiency of an UVC method based on diver towed GPS, the Tracked Roaming Transect (TRT), designed to maximize transect length (and thus the surveyed area) with respect to diving time invested in monitoring, as compared to Conventional Strip Transects (CST). Additionally, we analyze the effect of increasing transect width and length on the precision of density estimates by comparing TRT vs. CST methods using different fixed widths of 6 and 20 m (FW3 and FW10, respectively) and the Distance Sampling (DS) method, in which perpendicular distance of each fish or group of fishes to the transect line is estimated by divers up to 20 m from the transect line. The TRT was 74% more time and cost efficient than the CST (all transect widths considered together) and, for a given time, the use of TRT and/or increasing the transect width increased the precision of density estimates. In addition, since with the DS method distances of fishes to the transect line have to be estimated, and not measured directly as in terrestrial environments, errors in estimations of perpendicular distances can seriously affect DS density estimations. To assess the occurrence of distance estimation errors and their dependence on the observer's experience, a field experiment using wooden fish models was performed. We tested the precision and accuracy of density estimators based on fixed widths and the DS method. The accuracy of the estimates was measured comparing the actual total abundance with those estimated by divers using FW3, FW10, and DS estimators. Density estimates differed by 13% (range 0.1 31%) from the actual values (average = 13.09%; median = 14.16%). Based on our results we encourage the use of the Tracked Roaming Transect with Distance Sampling (TRT+DS) method for improving density estimates of species occurring at low densities and/or highly aggregated, as well as for exploratory rapid assessment surveys in which divers could gather spatial ecological and ecosystem information on large areas during UVC. PMID- 29324889 TI - Correction: Impact of Heat Stress on Cellular and Transcriptional Adaptation of Mammary Epithelial Cells in Riverine Buffalo (Bubalus Bubalis). AB - [This corrects the article DOI: 10.1371/journal.pone.0157237.]. PMID- 29324888 TI - Transcription factor Runx1 is pro-neurogenic in adult hippocampal precursor cells. AB - Transcription factor Runx1 (Runt Related Transcription Factor 1), plays an important role in the differentiation of hematopoetic stem cells, angiogenesis and the development of nociceptive neurons. These known functions have in common that they relate to lineage decisions. We thus asked whether such role might also be found for Runx1 in adult hippocampal neurogenesis as a process, in which such decisions have to be regulated lifelong. Runx1 shows a widespread low expression in the adult mouse brain, not particularly prominent in the hippocampus and the resident neural precursor cells. Isoforms 1 and 2 of Runx1 (but not 3 to 5) driven by the proximal promoter were expressed in hippocampal precursor cells ex vivo, albeit again at very low levels, and were markedly increased after stimulation with TGF-beta1. Under differentiation conditions (withdrawal of growth factors) Runx1 became down-regulated. Overexpression of Runx1 in vitro reduced proliferation, increased survival of precursor cells by reducing apoptosis, and increased neuronal differentiation, while slightly reducing dendritic morphology and complexity. Transfection with dominant-negative Runx1 in hippocampal precursor cells in vitro did not result in differences in neurogenesis. Hippocampal expression of Runx1 correlated with adult neurogenesis (precursor cell proliferation) across BXD recombinant strains of mice and covarying transcripts enriched in the GO categories "neural precursor cell proliferation" and "neuron differentiation". Runx1 is thus a plausible candidate gene to be involved in regulating initial differentiation-related steps of adult neurogenesis. It seems, however, that the relative contribution of Runx1 to such effect is complementary and will explain only small parts of the cell-autonomous pro-differentiation effect. PMID- 29324890 TI - Correction: Behavioral and Neural Correlates of Executive Functioning in Musicians and Non-Musicians. AB - [This corrects the article DOI: 10.1371/journal.pone.0099868.]. PMID- 29324891 TI - Correction: Effects of Spirulina on the functions and redox status of auditory system in senescence-accelerated prone-8 mice. AB - [This corrects the article DOI: 10.1371/journal.pone.0178916.]. PMID- 29324892 TI - Genetic factors have a major effect on growth, number of vertebrae and otolith shape in Atlantic herring (Clupea harengus). AB - Atlantic herring, Clupea harengus, have complex population structures. Mixing of populations is known, but the extent of connectivity is still unclear. Phenotypic plasticity results in divergent phenotypes in response to environmental factors. A marked salinity gradient occurs from Atlantic Ocean (salinity 35) into the Baltic Sea (salinity range 2-12). Herring from both habitats display phenotypic and genetic variability. To explore how genetic factors and salinity influence phenotypic traits like growth, number of vertebrae and otolith shape an experimental population consisting of Atlantic purebreds and Atlantic/Baltic F1 hybrids were incubated and co-reared at two different salinities, 16 and 35, for three years. The F1-generation was repeatedly sampled to evaluate temporal variation. A von Bertalanffy growth model indicated that reared Atlantic purebreds had a higher maximum length (26.2 cm) than Atlantic/Baltic hybrids (24.8 cm) at salinity 35, but not at salinity 16 (25.0 and 24.8 cm, respectively). In contrast, Atlantic/Baltic hybrids achieved larger size-at-age than the wild caught Baltic parental group. Mean vertebral counts and otolith aspect ratios were higher for reared Atlantic purebreds than Atlantic/Baltic hybrids, consistent with the differences between parental groups. There were no significant differences in vertebral counts and otolith aspect ratios between herring with the same genotype but raised in different salinities. A Canonical Analysis of Principal Coordinates was applied to analyze the variation in wavelet coefficients that described otolith shape. The first discriminating axis identified the differences between Atlantic purebreds and Atlantic/Baltic hybrids, while the second axis represented salinity differences. Assigning otoliths based on genetic groups (Atlantic purebreds vs. Atlantic/Baltic hybrids) yielded higher classification success (~90%) than based on salinities (16 vs. 35; ~60%). Our results demonstrate that otolith shape and vertebral counts have a significant genetic component and are therefore useful for studies on population dynamics and connectivity. PMID- 29324893 TI - Comparative transcriptome analysis reveals significant metabolic alterations in eri-silkworm (Samia cynthia ricini) haemolymph in response to 1-deoxynojirimycin. AB - Samia cynthia ricini (Lepidoptera: Saturniidae) is an important commercial silk producing insect; however, in contrast to the silkworm, mulberry leaves are toxic to this insect because the leaves contain the component 1-deoxynojirimycin (DNJ). A transcriptomic analysis of eri-silkworm haemolymph was conducted to examine the genes related to different metabolic pathways and to elucidate the molecular mechanism underlying eri-silkworm haemolymph responses to DNJ. Eight hundred sixty-five differentially expressed genes (DEGs) were identified, among which 577 DEGs were up-regulated and 288 DEGs were down-regulated in the 2% DNJ group compared to control (ddH2O) after 12h. Based on the results of the functional analysis, these DEGs were associated with ribosomes, glycolysis, N-glycan biosynthesis, and oxidative phosphorylation. In particular, according to the KEGG analysis, 138 DEGs were involved in energy metabolism, glycometabolism and lipid metabolism, and the changes in the expression of nine DEGs were confirmed by reverse transcription quantitative PCR (RT-qPCR). Thus, DNJ induced significant metabolic alterations in eri-silkworm haemolymph. These results will lay the foundation for research into the toxic effects of DNJ on eri-silkworm as a model and provide a reference for the exploitation of new drugs in humans. PMID- 29324894 TI - The obesity epidemic and rising diabetes incidence in a low-income racially diverse southern US cohort. AB - BACKGROUND: Obesity is known to be a major risk factor for diabetes, but the magnitude of risk and variation between blacks and whites are less well documented in populations heavily affected by obesity. Herein we assess rates and risks of incident diabetes in a diverse southern population where obesity is common. METHODS: A total of 24,000 black and 14,064 white adults aged 40-79 in the Southern Community Cohort Study with no self-reported diabetes at study enrollment during 2002-2009 was followed for up to 10 (median 4.5) years. Incidence rates, odds ratios (OR) and accompanying 95% confidence intervals (CI) for medication-treated incident diabetes were determined according to body mass index (BMI) and other characteristics, including tobacco and alcohol consumption, healthy eating and physical activity indices, and socioeconomic status (SES). RESULTS: Risk of incident diabetes rose monotonically with increasing BMI, but the trends differed between blacks and whites (pinteraction < .0001). Adjusted ORs (CIs) for diabetes among those with BMI>=40 vs 20-25 kg/m2 were 11.9 (8.4 16.8) for whites and 4.0 (3.3-4.8) for blacks. Diabetes incidence was more than twice as high among blacks than whites of normal BMI, but the racial difference became attenuated as BMI rose, with estimated 5-year probabilities of developing diabetes approaching 20% for both blacks and whites with BMI>=40 kg/m2. Diabetes risk was also associated with low SES, significantly (pinteraction<=.02) more so for whites, current cigarette smoking, and lower healthy eating and physical activity indices, although high BMI remained the predominant risk factor among both blacks and whites. From baseline prevalence and 20-year projections of the incidence trends, we estimate that the large majority of surviving cohort participants with BMI>=40 kg/m2 will be diagnosed with diabetes. CONCLUSIONS: Even using conservative criteria to ascertain diabetes incidence (i.e., requiring diabetes medication use and ignoring undiagnosed cases), rates of obesity associated diabetes were exceptionally high in this low-income adult population. The findings indicate that effective strategies to halt the rising prevalence of obesity are needed to avoid substantial increases in diabetes in coming years. PMID- 29324895 TI - Continental synchronicity of human influenza virus epidemics despite climatic variation. AB - The factors that determine the pattern and rate of spread of influenza virus at a continental-scale are uncertain. Although recent work suggests that influenza epidemics in the United States exhibit a strong geographical correlation, the spatiotemporal dynamics of influenza in Australia, a country and continent of approximately similar size and climate complexity but with a far smaller population, are not known. Using a unique combination of large-scale laboratory confirmed influenza surveillance comprising >450,000 entries and genomic sequence data we determined the local-level spatial diffusion of this important human pathogen nationwide in Australia. We used laboratory-confirmed influenza data to characterize the spread of influenza virus across Australia during 2007-2016. The onset of established epidemics varied across seasons, with highly synchronized epidemics coinciding with the emergence of antigenically distinct viruses, particularly during the 2009 A/H1N1 pandemic. The onset of epidemics was largely synchronized between the most populous cities, even those separated by distances of >3000 km and those that experience vastly diverse climates. In addition, by analyzing global phylogeographic patterns we show that the synchronized dissemination of influenza across Australian cities involved multiple introductions from the global influenza population, coupled with strong domestic connectivity, rather than through the distinct radial patterns of geographic dispersal that are driven by work-flow transmission as observed in the United States. In addition, by comparing the spatial structure of influenza A and B, we found that these viruses tended to occupy different geographic regions, and peak in different seasons, perhaps indicative of moderate cross-protective immunity or viral interference effects. The highly synchronized outbreaks of influenza virus at a continental-scale revealed here highlight the importance of coordinated public health responses in the event of the emergence of a novel, human-to-human transmissible, virus. PMID- 29324896 TI - Correlation of the anterior ocular segment biometry with HbA1c level in type 2 diabetes mellitus patients. AB - OBJECTIVES: To compare the anterior ocular segment biometry among Type 2 diabetes mellitus (DM) with no diabetic retinopathy (DR) and non-proliferative diabetic retinopathy (NPDR), and to evaluate the correlation of anterior ocular segment biometry with HbA1c level. METHODS: A cross-sectional study was conducted in Hospital Universiti Sains Malaysia, Kelantan from November 2013 till May 2016 among Type 2 DM patients (DM with no DR and DM with NPDR). The patients were evaluated for anterior ocular segment biometry [central corneal thickness (CCT), anterior chamber width (ACW), angle opening distance (AOD) and anterior chamber angle (ACA)] by using Anterior Segment Optical Coherence Tomography (AS-OCT). Three ml venous blood was taken for the measurement of HbA1c. RESULTS: A total of 150 patients were included in this study (DM with no DR: 50 patients, DM with NPDR: 50 patients, non DM: 50 patients as a control group). The mean CCT and ACW showed significant difference among the three groups (p < 0.001 and p = 0.015 respectively). Based on post hoc result, there were significant mean difference of CCT between non DM and DM with NPDR (mean difference 36.14 MUm, p < 0.001) and also between non DM and DM with no DR (mean difference 31.48 MUm, p = 0.003). The ACW was significantly narrower in DM with NPDR (11.39 mm SD 0.62) compared to DM with no DR (11.76 mm SD 0.53) (p = 0.012). There were no significant correlation between HbA1c and all the anterior ocular segment biometry. CONCLUSION: Diabetic patients have significantly thicker CCT regardless of retinopathy status whereas ACW was significantly narrower in DM with NPDR group compared to DM with no DR. There was no significant correlations between HbA1c and all anterior ocular segment biometry in diabetic patients regardless of DR status. PMID- 29324897 TI - Serum galactose-deficient-IgA1 and IgG autoantibodies correlate in patients with IgA nephropathy. AB - IgA nephropathy is an autoimmune disease characterized by IgA1-containing glomerular immune deposits. We previously proposed a multi-hit pathogenesis model in which patients with IgA nephropathy have elevated levels of circulatory IgA1 with some O-glycans deficient in galactose (Gd-IgA1, autoantigen). Gd-IgA1 is recognized by anti-glycan IgG and/or IgA autoantibodies, resulting in formation of pathogenic immune complexes. Some of these immune complexes deposit in the kidney, activate mesangial cells, and incite glomerular injury leading to clinical presentation of IgA nephropathy. Several studies have demonstrated that elevated circulatory levels of either Gd-IgA1 or the corresponding autoantibodies predict progressive loss of renal clearance function. In this study we assessed a possible association between serum levels of Gd-IgA1 and IgG or IgA autoantibodies specific for Gd-IgA1 in serum samples from 135 patients with biopsy-proven IgA nephropathy, 76 patients with other renal diseases, and 106 healthy controls. Our analyses revealed a correlation between the concentrations of the autoantigen and the corresponding IgG autoantibodies in sera of patients with IgA nephropathy, but not of disease or healthy controls. Moreover, our data suggest that IgG is the predominant isotype of Gd-IgA1-specific autoantibodies in IgA nephropathy. This work highlights the importance of both initial hits in the pathogenesis of IgA nephropathy. PMID- 29324898 TI - The etomidate analog ET-26 HCl retains superior myocardial performance: Comparisons with etomidate in vivo and in vitro. AB - OBJECTIVE: (R)-2-methoxyethyl1-(1-phenylethyl)-1H-imidazole-5-carboxylate hydrochloride (ET-26 HCl) is a novel etomidate analogue. The purpose of this study was to characterize whether ET-26 HCl could retain the superior myocardial performance of etomidate in vivo and in vitro. METHODS: In vivo, the influence of ET-26 HCl and etomidate on the cardiac function of dogs was confirmed using echocardiography and electrocardiogram. In vitro, a Langendorff preparation was used to examine direct myocardial performance in isolated rat hearts, and a whole cell patch-clamp technique was used to study effects on the human ether-a-go-go related gene (hERG) channel. RESULTS: In vivo, after a single bolus administration of ET-26 HCl or etomidate, no significant difference in echocardiography and electrocardiogram parameters was observed. No arrhythmia occurred and no QT interval prolongation happened during the study period. In the in vitro Langendorff preparation, none of the cardiac parameters were abnormal, and the hERG recordings showed that ET-26 HCl and etomidate inhibited the tail current of the hERG in a concentration-dependent manner with an IC50 of 742.51 MUM and 263.60 MUM, respectively. CONCLUSIONS: In conclusion, through an in vivo experiment and a whole organ preparation, the current study found that ET-26 HCl can maintain a myocardial performance that is similar to that of etomidate. In addition, the electrophysiology study indicated that ET-26 HCl and etomidate inhibited the hERG at a supra-therapeutic concentration. PMID- 29324899 TI - The effects of high dose of two manganese supplements (organic and inorganic) on the rumen microbial ecosystem. AB - Little is known about the effects of the high dose and types of manganese supplements on rumen environment at manganese intake level close above the limit of 150 mg/kg of dry feed matter. The effects of high dose of two manganese supplements (organic and inorganic) on rumen microbial ecosystem after four months of treatment of 18 lambs divided into three treatment groups were studied. We examined the enzyme activities (alpha-amylase, xylanase, and carboxymethyl cellulase), total and differential microscopic counts of rumen ciliates, total microscopic counts of bacteria, and fingerprinting pattern of the eubacterial and ciliates population analyzed by PCR-DGGE. Lambs were fed a basal diet with a basal Mn content (34.3 mg/kg dry matter; control) and supplemented either with inorganic manganous sulfate or organic Mn-chelate hydrate (daily 182.7, 184 mg/kg dry matter of feed, respectively). Basal diet, offered twice daily, consisted of ground barley and hay (268 and 732 g/kg dry matter per animal and day). The rumens of the lambs harbored ciliates of the genera of Entodinium, Epidinium, Diplodinium, Eudiplodinium, Dasytricha, and Isotricha. No significant differences between treatment groups were observed in the total ciliate number, the number of ciliates at the genus level, as well as the total number of bacteria. Organic Mn did decrease the species richness and diversity of the eubacterial population examined by PCR-DGGE. No effects of type of Mn supplement on the enzyme activities were observed. In comparison to the control, alpha-amylase specific activities were decreased and carboxymethyl-cellulase specific activities were increased by the Mn supplements. Xylanase activities were not influenced. In conclusion, our results suggested that the intake of tested inorganic and organic manganese supplements in excess may affect the specific groups of eubacteria. More studies on intake of Mn supplements at a level close to the limit can reveal if the changes in microbial population impact remarkably the other rumen enzymatic activities. PMID- 29324900 TI - Internal carotid artery stenosis: A novel surgical model for moyamoya syndrome. AB - Moyamoya is a cerebrovascular disorder characterized by progressive stenosis of the intracranial internal carotid arteries. There are two forms: Disease and Syndrome, with each characterized by the sub-population it affects. Moyamoya syndrome (MMS) is more prominent in adults in their 20's-40's, and is often associated with autoimmune diseases. Currently, there are no surgical models for inducing moyamoya syndrome, so our aim was to develop a new animal model to study this relatively unknown cerebrovascular disease. Here, we demonstrate a new surgical technique termed internal carotid artery stenosis (ICAS), to mimic MMS using micro-coils on the proximal ICA. We tested for Moyamoya-like vasculopathies by fluorescently labelling the mouse cerebrovasculature with Di I for visualization and analysis of vessel diameter at the distal ICA and anastomoses on the cortical surface. Results show a significant narrowing of the distal ICA and anterior cerebral artery (ACA) in the Circle of Willis, as observed in humans. There is also a significant decrease in the number of anastomoses between the middle cerebral artery (MCA) and the ACA in the watershed region of the cortex. While further characterization is needed, this ICAS model can be applied to transgenic mice displaying co-morbidities as observed within the Moyamoya syndrome population, allowing a better understanding of the disease and development of novel treatments. PMID- 29324901 TI - The relationship between species richness and aboveground biomass in a primary Pinus kesiya forest of Yunnan, southwestern China. AB - The relationship between biodiversity and biomass is an essential element of the natural ecosystem functioning. Our research aims at assessing the effects of species richness on the aboveground biomass and the ecological driver of this relationship in a primary Pinus kesiya forest. We sampled 112 plots of the primary P. kesiya forests in Yunnan Province. The general linear model and the structural equation model were used to estimate relative effects of multivariate factors among aboveground biomass, species richness and the other explanatory variables, including climate moisture index, soil nutrient regime and stand age. We found a positive linear regression relationship between the species richness and aboveground biomass using ordinary least squares regressions. The species richness and soil nutrient regime had no direct significant effect on aboveground biomass. However, the climate moisture index and stand age had direct effects on aboveground biomass. The climate moisture index could be a better link to mediate the relationship between species richness and aboveground biomass. The species richness affected aboveground biomass which was mediated by the climate moisture index. Stand age had direct and indirect effects on aboveground biomass through the climate moisture index. Our results revealed that climate moisture index had a positive feedback in the relationship between species richness and aboveground biomass, which played an important role in a link between biodiversity maintenance and ecosystem functioning. Meanwhile, climate moisture index not only affected positively on aboveground biomass, but also indirectly through species richness. The information would be helpful in understanding the biodiversity aboveground biomass relationship of a primary P. kesiya forest and for forest management. PMID- 29324902 TI - Potential impact of neonicotinoid use on Northern bobwhite (Colinus virginianus) in Texas: A historical analysis. AB - The widespread use of neonicotinoid insecticides in recent years has led to increasing environmental concern, including impacts to avian populations. In Texas and across their range, Northern bobwhite (Colinus virginianus) habitat frequently overlaps cultivated cropland protected by neonicotinoids. To address the effects of neonicotinoid use on bobwhites in Texas, we conducted a historical analysis from 1978-2012 in Texas' ecological regions using quail count data collected from North American Breeding Bird Survey and Texas Parks and Wildlife Department, and neonicotinoid use data from the U.S. Geological Survey. We considered bobwhite abundance, neonicotinoid use, climate, and land-use variables in our analysis. Neonicotinoid use was significantly (p<0.05) negatively associated with bobwhite abundance in the High Plains, Rolling Plains, Gulf Coast Prairies & Marshes, Edwards Plateau, and South Texas Plains ecological regions in the time periods following neonicotinoid introduction (1994-2003) or after their widespread use (2004-2012). Our analyses suggest that the use of neonicotinoid insecticides may negatively affect bobwhite populations in crop-producing regions of Texas. PMID- 29324903 TI - Korean survey data reveals an association of chronic laryngitis with tinnitus in men. AB - The association between chronic laryngitis and tinnitus is not a well-studied topic, unlike the association of these two conditions with many other disorders. Cross-sectional data of 11,347 adults (males: 4,934; females: 6,413), who completed the Korea National Health and Nutrition Examination Survey (KNHANES) from 2010 to 2012 were used to investigate this association. Lifestyle patterns, including smoking and alcohol habits, regular exercise, physical and mental health status, socioeconomic status, nutritional status, and other chronic diseases, were analyzed. Chronic laryngitis and tinnitus were diagnosed by field survey teams, which included otolaryngologists, who conducted chronic disease surveillance using a health status interview, a nutritional status questionnaire, and a physical examination. Chronic laryngitis was significantly associated with age, education beyond high school, depressed mood, voice change, metabolic syndrome, and tinnitus in men. In women, chronic laryngitis was associated with body mass index and diabetes mellitus. Chronic laryngitis in men was significantly associated with tinnitus (odds ratio 1.671, [95% confidence interval: 1.167-2.393]) after adjusting for age, body mass index, smoking status, alcohol intake, regular exercise, metabolic syndrome, education beyond high school, and depressed mood. Additionally, the prevalence of chronic laryngitis increased with increasing severity of tinnitus in men alone (P = 0.002). The study revealed a significant association between chronic laryngitis and tinnitus. PMID- 29324904 TI - Prohibitin plays a critical role in Enterovirus 71 neuropathogenesis. AB - A close relative of poliovirus, enterovirus 71 (EV71) is regarded as an important neurotropic virus of serious public health concern. EV71 causes Hand, Foot and Mouth Disease and has been associated with neurological complications in young children. Our limited understanding of the mechanisms involved in its neuropathogenesis has hampered the development of effective therapeutic options. Here, using a two-dimensional proteomics approach combined with mass spectrometry, we have identified a unique panel of host proteins that were differentially and dynamically modulated during EV71 infection of motor-neuron NSC-34 cells, which are found at the neuromuscular junctions where EV71 is believed to enter the central nervous system. Meta-analysis with previously published proteomics studies in neuroblastoma or muscle cell lines revealed minimal overlapping which suggests unique host-pathogen interactions in NSC-34 cells. Among the candidate proteins, we focused our attention on prohibitin (PHB), a protein that is involved in multiple cellular functions and the target of anti-cancer drug Rocaglamide (Roc-A). We demonstrated that cell surface expressed PHB is involved in EV71 entry into neuronal cells specifically, while membrane-bound mitochondrial PHB associates with the virus replication complex and facilitates viral replication. Furthermore, Roc-A treatment of EV71-infected neuronal cells reduced significantly virus yields. However, the inhibitory effect of Roc-A on PHB in NSC-34 cells was not through blocking the CRAF/MEK/ERK pathway as previously reported. Instead, Roc-A treated NSC-34 cells had lower mitochondria-associated PHB and lower ATP levels that correlated with impaired mitochondria integrity. In vivo, EV71-infected mice treated with Roc-A survived longer than the vehicle-treated animals and had significantly lower virus loads in their spinal cord and brain, whereas virus titers in their limb muscles were comparable to controls. Together, this study uncovers PHB as the first host factor that is specifically involved in EV71 neuropathogenesis and a potential drug target to limit neurological complications. PMID- 29324905 TI - Strains of bacterial species induce a greatly varied acute adaptive immune response: The contribution of the accessory genome. AB - A fundamental question in human susceptibility to bacterial infections is to what extent variability is a function of differences in the pathogen species or in individual humans. To focus on the pathogen species, we compared in the same individual the human adaptive T and B cell immune response to multiple strains of two major human pathogens, Staphylococcus aureus and Streptococcus pyogenes. We found wide variability in the acute adaptive immune response induced by various strains of a species, with a unique combination of activation within the two arms of the adaptive response. Further, this was also accompanied by a dramatic difference in the intensity of the specific protective T helper (Th) response. Importantly, the same immune response differences induced by the individual strains were maintained across multiple healthy human donors. A comparison of isogenic phage KO strains, demonstrated that of the pangenome, prophages were the major contributor to inter-strain immune heterogeneity, as the T cell response to the remaining "core genome" was noticeably blunted. Therefore, these findings extend and modify the notion of an adaptive response to a pathogenic bacterium, by implying that the adaptive immune response signature of a bacterial species should be defined either per strain or alternatively to the species' 'core genome', common to all of its strains. Further, our results demonstrate that the acquired immune response variation is as wide among different strains within a single pathogenic species as it is among different humans, and therefore may explain in part the clinical heterogeneity observed in patients infected with the same species. PMID- 29324907 TI - Correction: ANK1 is up-regulated in laser captured microglia in Alzheimer's brain; the importance of addressing cellular heterogeneity. AB - [This corrects the article DOI: 10.1371/journal.pone.0177814.]. PMID- 29324906 TI - Habits of a highly successful cereal killer, Striga. PMID- 29324909 TI - Effect of hypoparathyroid on bone mineral density of lumber spine in postmenopausal women with differentiated thyroid cancinoma. AB - OBJECTIVE: To investigate the effect of hypoparathyroid on bone mineral density in postmenopausal women with differentiated thyroid carcinoma (DTC). SUBJECT AND METHODS: Postmenopausal women with postoperative DTC, and undergoing thyroid residual ablation or for metastases treatment were collected and followed for two years. They were divided into hypoparathyroid group (PTH<15pg/mL) and a normal cognitive group (PTH>15pg/mL). Bone mineral density (BMD) at the lumbar spine was analyzed using dual-energy X-ray absorptiometry (DXA) at baseline, 6, 12 and 24 months. All patients had calcium and active vitamin D supplementation. RESULTS: The thyroid cancers included 211 papillary carcinomas, 14 follicular carcinomas. The majority of them were retired from previous work (157/225, 70%). There were 45 DTC patients in hypoparathyroid group and 180 patients in PTH normal group (postmenopausal controls). They are comparable in age, TSH suppression, BMD at baseline. There is no significant difference in BMD of lumbar spine between hypoparathyroid group and postmenopausal controls at baseline 6, 12 and 24 months follow-up which were1.03+/-0.14 and 1.04+/-0.18 (t=0.4, P=0.69), 1.04+/-0.13 and 1.01+/-0.19 (t=1.25, P=0.21), 1.06+/-0.15 and 1.02+/-0.16 (t=1.16, P=0.26), 1.06+/-0.21 and 1.01+/-0.17 (t=0.93, P=0.29), respectively. Areal BMD was increased by 2.9% in hypoparathyroid group in the lumbar spine at 12 and 24 months follow-up, while decrease of 2.9% in postmenopausal controls. No increase in BMD at lumbar spine was found in postmenopausal controls. CONCLUSION: Transient hypoparathyroid increased BMD at lumbar spine by DXA in postmenopausal DTC patients compared to postmenopausal controls. PMID- 29324908 TI - Peripheral quantitative computed tomography detects differences at the radius in prepubertal children with cystic fibrosis compared to healthy controls. AB - INTRODUCTION: In 2015, 11.9% of people with cystic fibrosis (CF) in the United States had osteopenia, 5.1% osteoporosis, and 0.3% experienced a fracture. Screening for CF-related bone disease starts in childhood, and dual energy x-ray absorptiometry (DXA) is the recommended method. It is unknown whether peripheral quantitative computed tomography (pQCT) can detect deficits earlier than DXA. This study compared pQCT and DXA scans in a group of pre-pubertal children with CF and healthy controls. METHODS: This was a cross-sectional study of children at Tanner stage 1. A pQCT scan of the radius at proximal and distal sites was performed plus a total body DXA scan. Serum C-reactive protein, interleukin-6 and tumor necrosis factor-alpha were also measured. RESULTS: A total of 34 subjects completed the study; 14 with CF and 20 controls. At the distal radius, pQCT showed a lower total bone mineral density (BMD) Z-score for the CF group (P = 0.01 and P = 0.03 for 2 different reference databases) compared to controls. At the proximal site, the polar strength-strain index was lower in the CF group (P = 0.017). Finally, the total body BMD Z-score by DXA was lower in the CF group, although it did not meet the definition of reduced bone density (P = 0.004). Biomarkers of inflammation were not different. CONCLUSIONS: In this group of pre pubertal children with CF, measures of bone strength and density by both pQCT and DXA were reduced compared to healthy controls. PMID- 29324910 TI - Deep brain nucleus targeting in Parkinson's disease and essential tremor by image guided surgery using neuronavigation system with tractography and volume of tissue of activated assessment. AB - OBJECTIVE: Deep Brain Stimulation (DBS) is an effective surgical approach for treatment of Parkinson's disease (PD), dystonia and essential tremor (ET). Traditionally, DBS is performed using frame-based stereotactic technique. Recently, image guided surgery (IGS) using neuronavigation has gained popularity in neurosurgical procedures. We aim to investigate whether DBS using neuronavigation is capable of improving patient's outcome and minimize its complications. SUBJECT AND METHODS: From February 2011 to October 2016, 20 patients with PD and 6 patients with ET were enrolled in the study. Patients aged between 18 to 70 years, were included and they underwent Magnetic Resonance Imaging (MRI) for deep brain nucleus volumetry. Among PD patients, 14 cases underwent subthalamic nucleus (STN) implantation, while other 6 cases underwent globus pallidus internus (GPi) implantation. Furthermore, ventral intermediate nucleus (VIN) implantation was performed for ET patients, all with IGS using neuronavigation system. Patients were assessed by unified Parkinson's disease rating scale (UPDRS) for PD and tremor scores for ET in their follow ups. Authors utilized Butson model for volume of tissue activated (VTA) assessment. In addition, detailed tractography was performed to evaluate white matter circuits radiating from deep nucleuses. RESULTS: PD patients with GPi volume of more than 600mm3 and less than 400mm3 were excluded from the study. Mean right and left GPi volume was 519+/-94.2mm3 and 480+/-80.3mm3, respectively. Calculated VTA based on Butson model revealed that 70% of cases who exhibited improved UPDRS of more than 50% in the 7th month of follow-up, had their VTA outside their defined GPi and STN boundaries with outer layer overlap. In contrast, 60% of cases who showed UPDRS improvement of less than 50% in same follow-up month, have their VTA inside defined GPi and STN boundaries. Moreover, ET patients experienced mean 55% and 79% improvement in tremor scores at mean 6.7 and 9.9 follow up month respectively. No surgery related complications were observed. Furthermore, tractography analysis revealed increased superior frontal gyrus and thalamus connection in patients with improved UPDRS. CONCLUSION: IGS using neuronavigation allowed more accurate deep nucleus targeting, minimized intra- and post-operative complications and improved clinical outcome in DBS candidate patients. Our study revealed that increased white matter connections with remote parts of the brain would suggest that isolated deep nucleus stimulation could not explain symptom recovery and that patients' specific white matter stimulation by tractography coupled with IGS should be in priority. PMID- 29324911 TI - Psychological consideration in patients with cerebral gliomas candidates for intra-operative radiation therapy based on tumor location. AB - OBJECTIVE: Intra-operative Radiation Therapy (IORT) is gaining popularity as an adjuvant option to surgical resection, in treatment of glioblastoma multiforme (GBM) for increasing survival rate, which a highly aggressive cerebral tumor with poor prognosis. Tauhe authors plan to investigate the effects of IORT combined with surgical resection on the psychological status of these patients based on tumor location. SUBJECT AND METHODS: From December 2013 to February 2017, we have enrolled 109 patients with high grade cerebral gliomas, documented by Magnetic Resonance Spectroscopy (MRS). Patients with previous history of brain surgery or radiation, altered mental status and psychological content and patients diagnosed with metastases were excluded. Demographic data, tumor volume based on pre operative Magnetic Resonance Imaging (MRI) and psychological status were recorded based on Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) criteria. The remaining 56 patients, were equally randomized into conventional (surgical resection-group A), and trial (surgical resection with IORT-group B) who underwent IORT using the 50kV INTRABEAM(r) system (Carl Zeiss Meditec AG, Germany). Psychological profiles of both groups were re-evaluated in the 3rd post-operative month. RESULTS: Group A consisted of 18 males and 10 females with mean age of 54.4 years, while group B consisted of 16 males and 12 females with mean age of 57.8 years. Tumor volumetry revealed mean 81.52cc and 82.8cc for group A and B respectively. (P value 0.14) Patients were classified based on glioma location on pre-operative MRI: a) left parietal lobe (6 in group A, 5 in group B); b) left temporal lobe (7 in group A, 5 in group B); c) right parietal lobe (5 in group A, 6 in group B); d) left fronto-temporal lobe (4 in group A, 6 in group B); e) left parieto-temporal lobe (4 in group A, 5 in group B); and, f) right frontal lobe (2 in group A, 1 in group B). Group B received mean 8.05 Gy radiation for mean 11.2 minutes. Post-operative psychological in the 3rd month evaluation revealed the following in each class: a) Group A: 1 mild depression, Group B: 1 mild depression and 2 major depression; b) Group A: no disorder, Group B: 1 mild depression; c) no disorders in both groups; d) Group A: no disorder, Group B: 1 mild depression, 1 major depression and 1 Obsessive Compulsive Disorder (OCD); Conclusion: Utilization of IORT is shown to improve survival rate of patients suffering from GBM. However, the psychological status is a major determinating factor for the quality of life of these patients. Our study showed that IORT increased psychological disorders in patients with gliomas located in left parietal, left fronto-temporal and left parieto-temporal lobes and should be considered in pre-operative strategy selection. PMID- 29324912 TI - Diuresis renography and ultrasonography in children with antenatally detected hydronephrosis can support diagnoses and suggest related surgery treatment. AB - OBJECTIVE: Prenatal ultrasound (US) screening detects the hydronephrosis (HN) dilatation of fetal renal collecting system in 1%-5% of all pregnancies. In most children, HN is detected by prenatal US screening between 18-20 gestational week. Pelvi- ureteric junction (PUJ) stenosis is the most common etiological factor of prenatal HN and requires postnatal follow-up. Diuresis renography plays important role in the follow-up by complementing morphological information obtained by US with the data about differential renal function (DRF) and drainage. We studied the association between ultrasound parameters and results of diuresis renography in first diagnosed PUJ stenosis and the predictive factors of pyeloplasty in order to evaluate the usefulness of diuresis renography in these children postnatally. PATIENTS AND METHODS: Children with antenatally detected HN attributed to presumed PUJ stenosis were investigated with mercapto acetyltriglycine (MAG3) diuresis renography. Parents gave informed consent for the procedure. The inclusion criteria were: age up to 4 years, diagnosis of prenatal HN determined by US during pregnancy based on the antero-posterior diameter (APD) of renal pyelon and at least one post-natal US which confirmed diagnosis. Exclusion criteria were: APD of pyelon <10mm, previous surgical treatment of HN, vesicoureteral reflux excluded by micturating cystourethrography, and patients having any anomaly of the contralateral kidney. Sixty two patients 43 boys, 19 girls, median age 16 months were selected. They were divided into three groups based on the size of pyelon, three groups based on the calyceal size and two groups according to thickness of parenchyma. Renography was performed for 24 minutes after the iv. application of 99mTc MAG3, 144 ten-sec images were applied. Furosemide was administered after 2 min. (F+2). Post-void static images were acquired at 60min. The non-commercial software developed by International Atomic Energy Agency was applied to process the studies. The criteria for pathological findings (poor or no drainage) were the renographic curve maintaining a plateau, Normalized Residual Activity (NORA) at 20. min.>1.62, Output efficiency (OE) at 20. min.<71%, postmicturating NORA >0.11. The DRF was considered normal within the range of 45%-55%. RESULTS: Good drainage had 74% of children, partial drainage 11%, and poor 15%. There was a clear association between the size of pyelon, calyces, parenchyma thickness and drainage. There was also a clear association between the calyceal size, parenchyma thickness and DRF. Differential renal function was <45% in 18% of children. A relation between the type of drainage and DRF was not determined. Thus, 66.7% of those with poor drainage had preserved DRF. Seven out of nine children with poor drainage underwent pyeloplasty. The threshold for pyeloplasty was the pyelon of 18mm and calyces of 10mm. The model of the multivariate logistic regression which included ultrasound parameters (APD of pyelon, calyces size and parenchymal thickness), drainage and DRF, which were significant predictors in univariate analysis, showed that only drainage was an independent predictor for the need of pyeloplasty. CONCLUSION: Antero-posterior diameter of the pyelon <15mm indicates a favorable course of congenital HN in most children. Pattern of drainage obtained by diuresis renography was the only independent predictor for the need of pyeloplasty. PMID- 29324913 TI - The detection of endocarditis, post implantation grafts, arteritis and other related disorders by 18F-FDG PET/CT. AB - INTRODUCTION: Positron emission tomography with computed tomography (18F-FDG PET/CT) is a nuclear medicine diagnostic method which, unlike other technological modalities that asses anatomical features, detects increased glucose metabolism inside the cells, thus is very helpful in diagnosing cardiovascular infection and inflammation and also in therapy planning. AIM: Aim of this study was to assess the significance of 18F-FDG PET/CT in detection of an active disease in patients with infection and inflammation of cardiovascular system. MATERIAL AND METHODS: In this cohort retrospective study 73 cardiovascular patients (56.9+/-15.3 years; 33 male and 40 female) with persistent symptoms of inflammatory syndrome were referred to 18F-FDG PET/CT in order to evaluate active disease. Biochemical blood analyses (erytrocite sedimentation, CRP, leukocytic formula), CT, MRI, ultrasound were performed in all the patients. Out of 73 patients, 7 had a second 18F-FDG PET/CT examination (62.1+/-12.3 years; 6 men and 1 woman) with a previous pathological PET/CT finding after which the therapy was changed. The degree of metabolic activity was analyzed visually and quantitatively using the maximal standardized uptake value (SUVmax). 18F-FDG PET/CT findings were considered positive in case of higher focal glucose accumulation in projection of heart and diffuse uptake in blood vessels' wall than accumulation in surrounding tissue and liver. RESULTS: Vasculitis was diagnosed in 36 patients (49,3%), endocarditis in 23 (31,5%) and graft inflammation in 14 (19,2%). The results were compared to the gold standard, biopsy of the blood vessel and histopathological verification during surgical treatment, or clinical follow up. Forty nine patients with the sights of an increased FDG uptake were considered true positive (TP) (SUVmax5.7+/ 2.9). In 21 patients 18F-FDG uptake was physiological and they were considered true negative (TN). Two who used corticosteroid therapy which decreases inflammation, were false negative (FN), and only 1 false positive (FP) finding in the region of recent iatrogenic vein injury. Sensitivity of this method was 96.08+/-, specificity 95.45+/-, positive predictive value 98.0+/-, negative predictive value 91.3+/- and accuracy 95.89+/-. CONCLUSION: Our results indicate that 18F-FDG PET/CT could be useful diagnostic method for the detection of sights of metabolically active disease in patients with persistent symptoms of infection and inflammation of cardiovascular system, as well as in monitoring therapy response. PMID- 29324914 TI - The association between Alzheimer's disease and cancer: Systematic review - Meta analysis. AB - The objective of the present study was the quantitative assessment of the previously documented inverse relationship between Alzheimer's Disease (AD) and cancer (CA) by conducting a meta-analysis and evaluating systematic differentiations of the aforementioned relationship based on cancer localization. For the purpose of the study all available empirical data of the last decade, which met specific criteria, were included in the analysis by querying PubMed, Web of Science and Cochrane Library databases. Seven studies were included in the analysis, with a total sample of 18,887 (10,859 AD patients, 8,028 non-demented controls) participants to calculate cancer risk among AD patients, and 11 studies, with a total of 5,607,076 (1,853,318 cancer patients, 3,753,758 healthy controls) participants, were assessed to evaluate AD risk among cancer patients. The analysis revealed that AD patients appear to have a reduced risk of cancer, by 40% (RR 0.60, 95% CI 0.45 - 0.79), while cancer history was associated with a reduced risk of AD, by 15% (RR 0.85, 95% CI 0.77-0.92). Systematic differences were also identified based on site-specific cancer. Indications of heterogeneity and publication bias were present in the analysis. Our meta-analysis is only the fourth conducted on this subject, with newer evidence suggesting a mitigation of the inverse relationship. We emphasize the need for new studies to assess the inverse comorbidity hypothesis, especially in AD patients. PMID- 29324915 TI - Self-report instruments of cognitive failures as screening tools for Subjective Cognitive Impairment in older adults. AB - BACKGROUND: The term "Subjective Cognitive Impairment (SCI)" is the most widely accepted term for cognitive complaints of otherwise apparently healthy older adults. It is presently clear that SCI might be a risk factor for the development of Mild Cognitive Impairment and dementia. As regards SCI measurement and potential diagnosis, several studies showed that SCI is a condition in which people score in the normal range on common tests but believe they experience cognitive decline. Hence, to assess the characteristic of the SCI subtle cognitive decline, self-report measures were developed to estimate "self experience" of minimal decline in cognition seem the most appropriate tools. In this vein, the present study aimed at examining the capacity of the Greek version of two self-report instruments of the aforementioned type to detect SCI in community dwelling older adults. MATERIAL AND METHODS: The study sample consisted of 295 participants, who were allocated into four age-groups: young adults, middle-aged adults, older adults and older-old adults. The first three groups were gender and education-matched. The participants were examined via two objective tests of the Delis-Kaplan Executive Function System (D-KEFS) which is a neuropsychological battery designed to measure executive functions. In specific, they were tested via the D-KEFS Tower Test (TT) which mainly measures "planning" function, and the D-KEFS Color-Word Interference Test (C-WIT) which primarily measures "inhibition" and "switching" functions. Both tests consist of four conditions. The participants were also asked to answer to: (a) the Cognitive Failures Questionnaire (CFQ), and (b) the Prospective and Retrospective Memory Questionnaire (PRMQ), which were designed to assess subjective estimations of everyday slips of actions and cognitive failures, and episodic memory slips in everyday life, respectively. As concerns the psychometric qualities of the two questionnaires, a single-factor structure of the Greek versions of the CFQ and the PRMQ was verified in a previous study via the application of Confirmatory Factor Analysis. RESULTS: No age-group effects on CFQ score were found. Receiver Operating Characteristic (ROC) curve analyses were subsequently performed, using objective tests' scores as test variables and CFQ classification based on the 75th percentile score, as state variable. ROC curves analyses using "C-WIT conditions' 1, 2 time of completion" as test variables and CFQ classification, in older adult age-group, as state variable, showed that a CFQ score >=47 is indicative of an early stage of objective cognitive impairment in older age. Cronbach's alpha values, for the Prospective and Retrospective Memory Questionnaire ranged from .89 (young adults) to .93 (older adults). No age-group effects on PRMQ score were observed. ROC curves analyses were performed, using objective measures' scores as well as CFQ score as test variables and PRMQ classification based on the 75th percentile score, as state variable. These analyses using "C-WIT conditions' 3, 4 time of completion" as well as CFQ score as test variables and PRMQ classification, in older adult age-group, as state variable, showed that a PRMQ score >=43 is indicative of an early stage of objective cognitive impairment as well as of subjective estimations of general cognitive decline in older age. CONCLUSION: Self-report questionnaires of "everyday" cognitive and memory failures seem to be associated with specific objective tests of cognition in aging. Hence, they are useful tools for detecting early cognitive impairment at least in older adults. Their administration together with objective cognitive tasks of high difficulty could substantially help for SCI screening. Given that there is also evidence that the experience of subtle impairment in cognition is related to increased likelihood of biomarker abnormalities indicative of AD pathology, the assessment of subjective estimations is revealed as a useful primary indicator of early AD effects on cognitive functioning. PMID- 29324916 TI - A comparison of 18F-FDG PET/CT findings in HIV positive compared to HIV negative patients with recurrent cervical cancer. AB - OBJECTIVE: HIV-positive women with cervical cancer have higher recurrence and death rates with shorter time to recurrence and death compared with HIV-negative subjects. The objective of this study was to compare the recurrence patterns in HIV-positive women with invasive cervical cancer to their HIV-negative counterparts using 18F-FDG PET/CT. SUBJECTS AND METHODS: We evaluated 40 HIV- seropositive and 79 HIV-seronegative patients with recurrent cervical carcinoma using 18F-FDG PET/CT. The PET/CT datasets were interpreted by two independent readers blinded to the HIV status of the patients. Areas of disagreement were resolved by consensus. Cervical cancer recurrence was confirmed by biopsy and histological examination of tissue, correlation with conventional imaging (CT and MRI) and by follow-up 18F-FDG PET/CT. RESULTS: HIV-positive patients were 9 years younger than the HIV-negative patients at the time of diagnosis; mean age 39 years versus 48 years respectively. Initial treatment was comparable in both groups. Time to recurrence was shorter in HIV-infected compared with HIV uninfected women (11 versus 24 months). The commonest sites of metastatic recurrence was in the lymph nodes. HIV-infected patients demonstrated significant higher recurrence in lymph nodes and lungs (P<0.05). No significant difference in the recurrence rate in liver or bone (P>0.05) between both groups. HIV-infected patients showed unusual metastases to brain, spleen and skin. CONCLUSION: By using the 18F-FDG PET/CT scan we showed that the time to recurrence is shorter among HIV seropositive patients with the commonest site of metastatic recurrence being in the lymph nodes. Nodal and liver metastases are significantly higher in HIV seropositive patients compared with seronegative patients. PMID- 29324917 TI - Sequential 18F-FDG PET/CT imaging parameters for differentiating benign from malignant lymph nodes in head and neck carcinoma. AB - OBJECTIVE: The aim of this study was to differentiate between benign and malignant head and neck lymph nodes by sequential imaging. SUBJECTS AND METHODS: The total of 56 retrospectively analysed patients with suspected or histopathologically confirmed head and neck malignancy (nasopharyngeal cancers mainly; 28 patients), before any treatment, underwent sequential fluorine-18 fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) examinations for staging purposes. Remaining 28 patients with physiologic and histopathologically confirmed inflammatory (of non-specified origin) lymph nodes were included into this analysis. Patients underwent sequential PET/CT scans 60 and 90min post injection (p.i.) of the 18F-FDG. Semi-quantitative analysis of metabolic activity within lymph nodes was based on the standardized uptake value (SUV) evaluation. To compare the metabolic activity fluctuation over time, the retention index (RI) was used. For SUV value and RI cut-off evaluation, the receiver operating characteristic (ROC) analysis was performed. RESULTS: The SUVmax value at 60min p.i. of physiologic, inflammatory and malignant (metastatic) lymph nodes were 1.09+/-0.33, 2.36+/-0.60 and 6.31+/-2.74, respectively. The SUVmax value at 90min p.i. were: 1.01+/-0.32, 2.48+/-0.61, and 7.17+/-2.91, respectively, and there was statistically significant difference between physiologic and inflammatory and physiologic and the metastatic lymph nodes (P<0.001). The values of early and delayed SUVmax were significantly different between physiologic and inflammatory and physiologic and metastatic lymph nodes (P<0.001). The SUVmax, SUVmean values at 60 and at 90min p.i. between malignant and inflammatory lymph nodes were statistically insignificant (P=0.33). The RI at 60 and at 90min p.i. was: -6%+/-16% for physiologic, 6%+/-14% for inflammatory and 15%+/-13% for the metastatic lymph nodes. The SUVmax changes over time (the RI) were statistically significant for physiologic and metastatic and physiologic and inflammatory lymph nodes (P<0.001) and significant between malignant and inflammatory lymph nodes (P=0.02). CONCLUSION: Sequential delayed 18F-FDG PET/CT examinations may increase specificity of this scan and provide information for the differentiation benign and malignant lymph nodes in the cases of head and neck cancer. PMID- 29324918 TI - Specific neck pain algometric measurements and their relation to heart rate and skin humidity. AB - Cervical pain is very common in general population but only few methods have been used to evaluate it with objectiveness. There are only few studies which use algometer as a means of neck pain assessment. Studies have shown that algometer could be used in pain evaluation but more studies are necessary to support this. The main purpose of the study was the evaluation of algometer as a means of an objective measurement of pain threshold to people with non-specific neck pain. The study focused on the search of correlation between neck pain and pain pressure threshold (PPT) after recording the number of the minimum pain feeling in the sample with the pressure of the algometer at specific neck points. The study also aimed at searching the correlation of neck pain with heart rate and skin humidity. This is a part of a cross-sectional study which was held during a PhD study which assessed 185 randomly chosen people, 20-60 years old, who visited all the Public Centers in the County of Thessaloniki. The sample was separated in two groups according to the frequency of their neck pain, those who suffered frequently or almost every day from non-specific neck pain (neck pain group) and those with non-specific neck pain occasionally, rarely or never suffered from it (no pain group). Subjects were randomly chosen from people who visited the Public Centers for any reason. Neck pain was strongly associated with PPT (P<0.001). Heart rate (P=0.216) and skin humidity (P=0.14) were not significantly related to neck pain. According to the results the algometer seems to be a useful tool as a mean of neck pain evaluation and algometry seems to enhance the idea of pain quantification. However more evidence is needed and more studies should be conducted in order to strengthen our results. Latter studies should be designed with more accuracy focusing on details in order to establish algometry as an objective method of pain evaluation. PMID- 29324919 TI - Synchrotron-Fourier transform infrared maps of ovalbumin-induced murine chronic allergic airways disease: Correlation with conventional histology. AB - Asthma is a chronic respiratory disease characterised by airway inflammation, remodeling and hyperresponsiveness. The ability to replicate these asthma traits in the well-established ovalbumin induced chronic model of allergic airways disease is an important tool for asthma research and preclinical drug development. Here, spectra derived from focal plane array and Synchrotron-Fourier transform infrared maps were used to analyse biochemical changes in lung tissue from an ovalbumin-induced murine chronic allergic airways disease model. Analysis of the chemical maps resulted in distinct clusters and significant changes in the lipid and proteins regions of the spectra between the saline control and diseased lung tissue samples. Overall, the utilisation of conventional histological methodologies and Synchrotron infrared microspectroscopy has the ability to expand the characterisation of murine models of asthma. PMID- 29324920 TI - Technetium-99m-dimercaptosuccinic acid renal scintigraphy can guide clinical management in congenital hydronephrosis. AB - OBJECTIVE: The purpose of this study was to evaluate damage of the kidney with technetium-99m-dimercaptosuccinic acid (99mTc-DMSA) scintigraphy in children with congenital hydronephrosis (CH) and the influence of other postnatal associated diagnoses on abnormal 99mTc-DMSA findings. SUBJECTS AND METHODS: 99mTc-DMSA scintigraphy in 54 children (17 girls and 37 boys), aged from 2 months to 5 years (median 11 months) with 66 congenital hydronephrotic renal units (RU) (42 unilateral hydronephrosis-29 boys and 13 girls; 12 bilateral hydronephrosis-8 boys and 4 girls) was performed. Male/female ratio was 2,2:1, unilateral/bilateral hydronephrosis ratio was 4:1. Hydronephrosis classified into three groups according to ultrasound measurement of the antero-posterior pelvic diameter APD): mild (APD 5-9.9mm) was present in 13/66RU, moderate (APD 10 14.9mm) in 25/66RU, and severe (APD>=15mm) in 28/66RU. Simple hydronephrosis was present in 15RU, and the postnatal associated clinical diagnosis were vesicoureteric reflux (VUR) in 21, pelviureteric junction (PUJ) obstruction in 7, pyelon et ureter duplex in 11, megaureter in 11 and posterior urethra valves in 1RU, respectively. Static renal scintigraphy was performed 2 to 3 hours after intravenous (iv) injection of 99mTc-DMSA using a dose of 50MUCi/kg (1.85MBq/kg; minimal dose: 300MUCi). Four views (posterior, left and right posterior oblique and anterior) were obtained with a head gamma camera "Orbiter" filtered with high resolution parallel whole collimator. All images were stored in an Pegasys computer with a matrix size of 256*256. The relative kidney uptake (RKU) between the left and right kidney was calculated as an average number counts from anterior and posterior view. Renal pathology was defined as inhomogenous or focal/multifocal uptake defects of radiopharmaceutical in hydronephrotic kidney or as split renal uptake of <40%, and poor kidney function was defined as split renal uptake <10%. Descriptive and analytical statistics (SPSS version 20.0) was performed. Analytical statistics implied the non-parametric Mann-Whitney test for determination of statistically significant difference between the normal and pathological findings on 99mTc-DMS scan. The default level of significance was P<.05. RESULTS: Our 99mTc-DMSA scintigraphy findings in children with ANH were: decreased or enlarged kidney with inhomogeneous kidney uptake radiopharmaceutical in 22, irregular shape kidney with inhomogeneous accumulation of radiopharmaceutical in 3, connected (fused) kidney in 1 patient, and poorly or nonvisual kidney in 14RU respectively (total 40/66RU with pathological 99mTc-DMSA finding, 60,6%). Relative accumulation in hydronephrotic kidney was less or equal to 40% in 17RU, less than 10% in 14RU and inhomogeneous radiopharmaceutical uptake with relative accumulation over 40% was detected in 9RU. Regular kidney morphology with homogeneous accumulation of radiopharmaceutical (normal DMSA scintigraphy finding) were found in 26/66RU (39,4%). Statistically significant correlation between the degree of the hydronephrosis (APD) and 99mTc-DMSA scan findings (P<0.001) and between the degree of the VUR and DMSA scan finding (P=0.002) was established. In our study, other associated diagnosis were not statistically correlated with pathological findings on 99mTc-DMSA scan due to low number of patients. CONCLUSION: On the basis of these results (60% pathological findings) we recommend DMSA scintigraphy in the evaluation renal pathology in children with congenital hydronephrosis. Greater number of patients is needed for the estimation of the associated diagnosis (other than VUR) influence on the renal parenchymal damage in children with CH. PMID- 29324921 TI - The correlation of Evans index with CSF protein levels and ventriculomegaly. AB - OBJECTIVE: The role of ventriculomegaly and its interplay between various dementia entities and their pathogenesis, as well as its correlation to the levels of CSF protein markers, remains to be elucidated. Evans index (EI) is a well-established radiological marker in the diagnosis of idiopathic Normal Pressure Hydrocephalus (iNPH), assessing ventricular enlargement. However, there are no previous studies investigating the correlation between EI, age, beta amyloid (Abeta), tau and phosphorylated-tau (p-tau) proteins in the CSF. The aim of this study was to examine the correlation of the above CSF proteins, EI and age in patients with dementia. METHODS: Sixty two (62) patients, with dementia and levels of Abeta, Tau and p-Tau in their CSF as well as age and the EI participated in this study. Multiple regression analysis was performed to investigate possible correlations between the aforementioned factors. A multiple regression was employed to predict Abeta values from age, tau and p-tau values in the CSF. The Durbin-Watson d was 1.942 so we can assume that there is no first order linear auto-correlation in our multiple linear regression data. RESULTS: The variables statistically significantly predicted Abeta, F-value=4.429, P=0.011, R2=0.483. Specifically, out of all the variables, it was shown that only EI and age added statistically significantly to the prediction, P<.05. Specifically, these results are interpreted as: for every 0.01 unit increase in EI, it was predicted a -38.698 decrease in the Alphabeta value and for every 1 year increase in age, it was predicted a -17 decrease in the Alphabeta value. CONCLUSION: There seems to be a significant correlation between EI value, age and Abeta reduction in the CSF. No correlation was found between EI and tau and p-tau proteins in the CSF. This may indicate that Abeta levels in the CSF are affected significantly by ventriculomegaly and not as much by pathophysiological pathways characteristic for each dementia entity. On the other hand, tau and p-tau proteins could possibly play a crucial role in the differential diagnosis of iNPH and other dementia entities, as these proteins cannot be predicted by ventricular enlargement. PMID- 29324922 TI - Autologous free fat transfer in patients with velopharyngeal insufficiency. AB - AIM: To report our initial experience and preliminary results of autologous free fat transfer to improve speech and hypernasality in patients with velopharyngeal insufficiency (VPI) as a sequela of cleft lip and palate repair. MATERIAL AND METHODS: To date 2 patients with a mean age of 25 years were treated with this method. Both had initially received multiple procedures elsewhere for cleft lip and palate repair. We recorded the number of free fat transfer sessions, anatomical places of placement and volumes injected in-patient stay, occurrence or absence of complications and effectiveness of this operation in terms of clinical speech evaluation, functional velopharyngeal closure measurements and speech improvement percentage by an Ear, Nose and Throat (ENT) specialist. RESULTS: Two autologous free fat transfer sessions per patient were performed. Mean hospitalization time was 1 day per operation. Following liposuction, autologous free fat was transferred to the following anatomical areas: a) Passavant's ridge, b) uvula, c) palatopharyngeal and palatoglossal folds. The volume of fat injected varied from 6.5 cc to 8 cc per session. Postoperative periods were uneventful for both cases in each session. On clinical examination, improvement in speech was noted as well as a reduction in hypernasality with an improvement in articulation and audibility of consonant words, which were also reported by the patients' relatives. This was confirmed by objective nasendoscopy velopharyngeal closure measurements, both during speech and deglutition. CONCLUSION: Augmentation pharyngoveloplasty with autologous free fat transfer in patients with velopharyngeal insufficiency is a safe and innovative alternative, particularly for small to medium degrees of structural velophayngeal dysfunction. PMID- 29324923 TI - The operation of the Day Care Centre of Alzheimer Hellas "Saint Helen" and of the Memory Clinic of Papanikolaou General Hospital from 2007 to 2017. AB - OBJECTIVE: Nowadays, there is a rapid increase of neurocognitive disorders (ND), while Alzheimer disease (AD), is the most frequent type of neurodegeneration. Therefore, Day Care Centers (DCC) and Memory Clinics (MC) have been created in order to correspond to the rising needs of people with ND. The aim of the study was to record clinical and demographic characteristics of people with ND from the broader area of Thessaloniki. SUBJECTS AND METHODS: Data bases were collected and were analyzed in order to examine demographical characteristics of all visitors of the DCC of Alzheimer Hellas and of visitors of the Papanikolaou General Hospital, during the years 2007-2017. Six thousand and ninety six people (N=6.096) were totally classified as single visitors of the outpatients of MC of Papanikolaou General Hospital and of the DCC of Alzheimer Hellas. RESULTS: Among the total number of visitors, 3.078 people received the diagnosis of Mild Cognitive Impairment (MCI), whereas 3.018 people met the dementia diagnosis criteria. As far as the MCI group is concerned, the majority of them were women (72.1%) while the mean age of MCI group was M (SD)=67.73(9.21) years. Their mean education was M (SD)=10.65 (4.59) years, while their mean score in general cognitive performance (MMSE) was M (SD)=27.03(2.18) points and their score of general functional performance (FUCAS) was M (SD)=44.32(2.49). In regards to the dementia group, the majority of them were also women (63.8%) with a mean age M (SD)=76.08 (8.60) years and a mean education M (SD)=7.35 (4.41) years. The MMSE score of the group was M (SD)=17.79 (6.53) and the FUCAS score was M (SD)=63.25 (18.12). Moreover, the vast majority of dementia type was AD (53.1%). CONCLUSION: Women are presented more frequently to primary care services and people with dementia have lower education and greater age. AD continues to be the most common type of dementia. PMID- 29324924 TI - Mobile phone use for 5 minutes can cause significant memory impairment in humans. AB - INTRODUCTION: Concerns about the possible adverse health effects of mobile phones (MP) have increased along with the expansion of their use. A number of research papers have tried to address this issue. Although many investigations concluded that MP use does have negative consequences, in terms of cognitive function of the human brain, the results so far have been divisive. A number of studies reported impairment of cognitive function after exposure to mobile phone electromagnetic field (MP EMF), while others observed no effect or improved performance. The variance in the results may be attributed to methodological issues. The present article focuses on possible effects of MP use on cognitive function and more specifically on working memory processes. An emphasis is placed in the lack of a validated tool, a cognitive task, that can produce MP EMF effects on human cognition in a repeatable fashion. METHODS: Sixty four (64) healthy participants as well as 20 with Mild Cognitive Impairment (MCI) were the experimental group, while 36 healthy individuals were the control group. A computerized list of 10 words was presented and the participants were asked to reproduce it. The words were presented very briefly in order to increase the difficulty and hence the sensitivity of the task. Three measurements were taken for the experimental group: a) before using the MP, b) immediately after using the MP for a duration of 5 minutes, c) 5 minutes after the second measurement with no usage of the MP in between. Three measurements of the memory task were also taken for the control group in the same time intervals with no usage of a MP. The effect of age and gender in the performance of the task was taken into account. RESULTS: Healthy participants of the experimental group performed worst in the memory task after using the MP. While the third measurement (5 minutes after the 2nd measurement) was better than the second (after using the MP), but worse than the first (before using the MP). In contrast for the control group the second measurement was better than the first and the third even better than both previous ones. All differences were statistically significant. The reduction of the performance in the task after using the MP was even higher for the age group of 60-80 years old in comparison with younger age groups, as well as for the individuals with MCI in comparison to healthy participants. Age was significantly negative correlated with performance in the task, while gender showed no significant correlation. CONCLUSION: MP use has a significant negative impact on working memory performance of human participants. The effect is apparent even for a 5 minute use of the MP. Working memory deficits are greater not only for the 60 years old and above participants but also for individuals with Mild Cognitive Impairment. These results are in agreement with previous studies on animals as well as humans on the effects of MP use on the brain. It is argued that low sensitivity of some of the cognitive tasks used until now and the lack of a validated tool in the form of a cognitive task may account for some of the variability in the literature so far. It is suggested that the experimental paradigm that was used in this study for an increased sensitivity measurement of cognitive function and working memory processes in particular may be used for the display of the effects of MP use on cognitive function and for the development of other tasks sensitive to it. Overall, it is concluded that the development of certain restrictions on MP use is necessary for the protection of the brain health of the users. PMID- 29324925 TI - Bone scintigraphy can diagnose osteoporotic vertebral compression fractures better than conventional radiography. AB - OBJECTIVE: Most difficult and very frequent complications of osteoporosis are vertebral compression fractures (VCF). Bone scintigraphy with 99mTc-phosphonates enables early detection of vertebral compression fractures in the first 72 hours of occuring. Typical scintigraphic findings is markedly increased radiotracer uptake in the linear pattern, throughout collapsed vertebral body. Bone scintigraphy is usefull in follow-up of vertebral fractures healing, showing reduction of radiotracer uptake in fractured vertebrae. In patients with osteoporosis and suspition of VCF, we detected compression vertebral fracture by bone scintigraphy and compare it with conventional radiography findings. PATIENTS AND METHOD: Bone scintigraphy was done in 40 patients with osteoporosis and suspition of compression vertebral fractures, 32 women and 8 men, mean age, 71 years. Three hours after iv. injection of 740MBq of 99mTc-DPD to the patients, a whole body scintigraphy was done. Standard radiographic views AP, lateral, and oblique were done in all patients. RESULTS: Radiography findings were positive for vertebral compression fracture in 28 patients (70%), and with bone scintigraphy in 36 patients (90%). In one patient with healed-old vertebral fracture, with positive radiographic finding, scintigraphic finding was negative. Bone scintigraphy incidentally diagnosed bone metastases in 3 patients. CONCLUSION: Bone scintigraphy has a very high sensitivity for detection of vertebral compression fractures in osteoporotic patients. Conventional radiography showed a much lower sensitivity and could not differentiate acute from old vertebral compression fractures. PMID- 29324926 TI - Risk stratification and staging in prostate cancer with prostatic specific membrane antigen PET/CTObjective: A one-stop-shop. AB - OBJECTIVE: Current imaging modalities for prostate cancer (PC) had limitations for risk stratification and staging. Magnetic resonance imaging (MRI) frequently underestimated lymphatic metastasis while bone scintigraphy often had diagnostic dilemmas. Prostatic specific membrane antigen (PSMA) positron emission tomography computed tomography (PET/CT) has been remarkable in diagnosing PC recurrence and staging. We hypothesized it can become one-stop-shop for initial risk stratification and staging. SUBJECTS AND METHOD: Ninety seven PSMA PET-CT studies were re analysed for tumor node metastases (TNM) staging and risk stratification of lymphatic and distant metastases proportion. The histopathology of 23/97 patients was available as gold standard. Chi-square test was used for proportion comparison. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), over-estimation, under-estimation and correct-estimation of T and N stages were calculated. Cohen's kappa coefficient (k) was derived for inter-rater agreement. RESULTS: Lymphic or distant metastases detection on PSMA PET/CT increased significantly with increase in risk category. PSMA PET/CT sensitivity, specificity, PPV and NPV for extra prostatic extension (EPE), seminal vesicle invasion (SVI) and lymphatic metastases were 63.16%, 100%, 100%, 36.36% & 55%, 100%, 100%, 25% and 65.62%, 99.31%, 87.50%, 97.53%, respectively. Cohen's kappa coefficient showed substantial agreement between PSMA PET/CT and histopathological lymphic metastases (kappa 0.734) however, it was just in fair agreement (kappa 0.277) with T stage. PSMA PET/CT over-estimated, under-estimated and correct-estimated T and N stages in 8.71%, 39.13%, 52.17% and 8.71%, 4.35%, 86.96% cases, respectively. CONCLUSION: We found that PSMA PET/CT has potential for initial risk stratifications with reasonable correct estimation for N stage. However, it can underestimate T stage. Hence, we suggest that PSMA PET/CT should be used for staging and initial risk stratification of PC as one-stop-shop with regional MRI in surgically resectable cases. PMID- 29324927 TI - Hematopoiesis is prognostic for toxicity and survival of 223Radium treatment in patients with metastatic castration-resistant prostate cancer. AB - OBJECTIVE: We evaluated the impact of pre-therapeutic hematopoiesis on survival, hematotoxicity (HT) and number of 223Radium (223Ra) treatments in patients with metastatic castration-resistant prostate cancer. SUBJECTS AND METHOD: Hemoglobin levels (Hb), the number of platelets (Plts), leukocytes (Leuk), and survival data were collected in 56 patients treated with 223Ra. Pre-therapeutic hematopoiesis as well as adverse events during and after therapy were scored (grade 0-4) according to the CTCAE recommendations. The association of pre-therapeutic hematopoiesis, survival, HT and numbers of 223Ra cycles was analyzed. RESULTS: Median survival in all patients was 69.9 weeks; 77% of patients had pre-existing impaired Hb (1.7% grade 3, 12.5% grade 2, 62.5% grade 1). 8/56 (14.3%) had impaired Plt (grade 1) Maximum toxicity (Tox) grades of patients during treatment were grade 4 (Hb 1.7%; Plt 1.7%), grade 3 (Hb 14.3%; Plt 7.1%; Leu 7.1%), grade 2 (Hb 33.9%; Plt 7.1%; Leu 23.2%), grade 1 (Hb 46.4%; Plt 17.9%; Leu 23.2%) and grade 0 (Hb 5.4%; Plt 66.1%; Leu 44.6%). Interestingly, patients with thrombocytopenia had a significantly shorter survival compared to those with normal Plt levels (21 weeks vs not reached; P<0.003). As expected patients with pre-therapeutic low Hb-level (<10g/dL) had a significantly shorter survival compared to those with Hb-level >10g/dL (28 weeks vs not reached, P<0.004), whereas survival of patients with mildly impaired Hb (>10 but <13.5g/dL) did not differ from patients with normal levels of Hb (X vs. Y, P=...). Also patients with impaired Hb also developed significantly more grade 3 and 4 HT (Hb <10g/dL: 42.9 vs 14.3%, P<0.001; Plt <150G/mL: 25.0% vs 6.3%; P=0.002) and received significantly fewer treatment cycles (Hb<10g/dL: 5.1 vs 5.8, P<0.04; Plt <150G/mL: 3.4 vs 5.6; P<0.001). Neither extent of bone metastases nor previous chemotherapy were associated with survival, number of 223Ra cycles and HT. CONCLUSION: Patients with metastatic castration-resistant prostate cancer and impaired hematopoiesis, in particular thrombocytopenia and anemia, before 223Ra therapy suffer from significantly more high-grade HT, shorter survival and receive significantly fewer 223Ra treatments. Therefore, Hb-levels and platelet counts are essential parameters for adequate patient selection for 223Ra therapy. PMID- 29324928 TI - Individual kidney depth determination is mandatory to assess split renal function in nephrography irrespective of age. AB - Nephrography having been introduced more than 60 years ago still now is one of the most frequently used and informative procedures in Nuclear Medicine. Although being considered a well standardized method, a worldwide study in 34 centers in 21 countries revealed that determination of split kidney function shows unacceptable high variation, particularly in patients with a relative kidney function below 30%. Furthermore, kidney depth usually is not considered. The calculation of kidney depth by various formulas available, each claiming to be more predictive, is different in races and does not allow individual information, which particularly in patients with a diseased kidney may become unreliable. We investigated 331 patients (167m, 164f) aged 1 to 76 years (84 of them being less than 20 years old), where kidney depth has been estimated by means of sonography as well as by a lateral view gamma camera image obtained immediately after the investigation. At the age of 10 years the kidney depth may vary already by 20%, in some patients increasing to 30% at the age of 20 and showing further increase with increasing age. In adults, >50% show a depth difference between right and left kidney of >1cm. There is an excellent correlation between sonographic and nephrographic kidney depth determination, at mean there was no difference between the kidney depth of the right hand and left hand side. Furthermore, we demonstrate that the incorporation of waist circumference instead of body mass index into the formulas is more precise. These findings indicate that the assessment of split kidney function particularly in patients with kidney disease, transplant donors and atypical localization irrespective of age should be mandatory in clinical routine. PMID- 29324929 TI - Our solution for fusion of simultaneusly acquired whole body scintigrams and optical images, as usesful tool in clinical practice in patients with differentiated thyroid carcinomas after radioiodine therapy. A useful tool in clinical practice. AB - OBJECTIVE: After radioiodine therapy of differentiated thyroid cancer (DTC) patients, whole body scintigraphy (WBS) is standard procedure before releasing the patient from the hospital. A common problem is the precise localization of regions where the iod-avide tissue is located. Sometimes is practically impossible to perform precise topographic localization of such regions. METHOD: In order to face this problem, we have developed a low-cost Vision-Fusion system for web-camera image acquisition simultaneously with routine scintigraphic whole body acquisition including the algorithm for fusion of images given from both cameras. For image acquisition in the gamma part of the spectra we used e.cam dual head gamma camera (Siemens, Erlangen, Germany) in WBS modality, with matrix size of 256*1024 pixels and bed speed of 6cm/min, equipped with high energy collimator. For optical image acquisition in visible part of spectra we have used web-camera model C905 (Logitech, USA) with Carl Zeiss(r) optics, native resolution 1600*1200 pixels, 34o field of view, 30g weight, with autofocus option turned "off" and auto white balance turned "on". Web camera is connected to upper head of gamma camera (GC) by a holder of lightweight aluminum rod and a plexiglas adapter. Our own Vision-Fusion software for image acquisition and coregistration was developed using NI LabVIEW programming environment 2015 (National Instruments, Texas, USA) and two additional LabVIEW modules: NI Vision Acquisition Software (VAS) and NI Vision Development Module (VDM). Vision acquisition software enables communication and control between laptop computer and web-camera. Vision development module is image processing library used for image preprocessing and fusion. Software starts the web-camera image acquisition before starting image acquisition on GC and stops it when GC completes the acquisition. Web-camera is in continuous acquisition mode with frame rate f depending on speed of patient bed movement v (f=v/?cm, where ?cm is a displacement step that can be changed in Settings option of Vision-Fusion software; by default, ?cm is set to 1cm corresponding to ?p=15 pixels). All images captured while patient's bed is moving are processed. Movement of patient's bed is checked using cross-correlation of two successive images. After each image capturing, algorithm extracts the central region of interest (ROI) of the image, with the same width as captured image (1600 pixels) and the height that is equal to the ?p displacement in pixels. All extracted central ROI are placed next to each other in the overall whole-body image. Stacking of narrow central ROI introduces negligible distortion in the overall whole-body image. The first step for fusion of the scintigram and the optical image was determination of spatial transformation between them. We have made an experiment with two markers (point radioactivity sources of 99mTc pertechnetate 1MBq) visible in both images (WBS and optical) to find transformation of coordinates between images. The distance between point markers is used for spatial coregistration of the gamma and optical images. At the end of coregistration process, gamma image is rescaled in spatial domain and added to the optical image (green or red channel, amplification changeable from user interface). SUBJECTS: We tested our system for 10 patients with DTC who received radioiodine therapy (8 women and two men, with average age of 50.10+/-12.26 years). Five patients received 5.55Gbq, three 3.70GBq and two 1.85GBq. Whole-body scintigraphy and optical image acquisition were performed 72 hours after application of radioiodine therapy. CONCLUSION: Based on our first results during clinical testing of our system, we can conclude that our system can improve diagnostic possibility of whole body scintigraphy to detect thyroid remnant tissue in patients with DTC after radioiodine therapy. PMID- 29324930 TI - Characteristics, socioeconomic status and ethnic variations of primary idiopathic macular hole repair in vitreoretinal centers in the United Kingdom. AB - OBJECTIVE: The purpose of this multicentre retrospective study was to investigate the characteristics and role of ethnicity and socioeconomic status amongst patients with idiopathic macular holes (IMH) and the surgical outcome. SUBJECTS AND METHOD: Consecutive patients undergoing primary IMH surgery at three vitreoretinal units in the UK (King's College Hospital, London, UK, Western Eye Hospital, London, UK, Sunderland Eye Infirmary, Sunderland, UK) between January 2007 and May 2017 were included. The main outcome measure was anatomical closure of IMH. RESULTS: Two hundred and thirty three primary IMH surgeries were included. All patients underwent pars plana vitrectomy, internal limiting membrane peeling, and gas tamponade. 69.10% of patients were European Caucasian, 6.44% were Asian, and 24.46% were Afro-Caribbean. The mean base macular hole diameter (BD) was 475.5mcm. Mean BD was 432.2mcm in European Caucasian patients, 481.3mcm in Asians (P=0.005), and 505.61mcm in Afro-Caribbeans (P=0.006). Regression analysis demonstrated that BD and Afro-Caribbean ethnicity were independent significant risk factors for surgical failure. Those who have longer duration of symptoms (Afro-Caribbeans) and leave in more deprived places (Afro Caribbeans) in England where found to have lower success rate on macular hole closure. CONCLUSION: Asian and Afro-Caribbean patients present with larger IMH than European Caucasians. In addition to IMH base diameter, black origin and lower socioeconomic status are independent risk factors for surgical failure. This study presents a large population-based data analysis on ethnic variation in macular holes and may assist in the management and predicting the surgical outcome. PMID- 29324931 TI - Vitrectomy with fibrovascular membrane delamination for proliferative diabetic retinopathy with or without preoperative Avastin. AB - OBJECTIVE: To describe and compare 1. The changes in intraretinal microstructure using serial spectral domain optical coherence tomography (SD-OCT) preceding and following pars plana vitrectomy and delamination of fibrovascular membranes and 2. Intraoperative and postoperative complications in patients with proliferative diabetic retinopathy (PDR) who had preoperative Avastin (group A) or not (group B). SUBJECTS AND METHOD: This retrospective, interventional case series includes 113 eyes. Outcome measures included LogMAR distance best-corrected visual acuity (BCVA), SD-OCT integrity of photoreceptor inner and outer segments junction (IS/OS), and integrity of external limiting membrane (ELM), intraoperative and postoperative complications. RESULTS: Pre-operative central macular thickness (CMT) was significantly correlated with the final post-operative LogMAR BCVA in group A. Both groups were also categorised into three sub-groups based on post operative IS/OS integrity (group 0: IS/OS intact; group 1: IS/OS irregular but not completely disrupted; group 2: IS/OS completely disrupted). Mean BCVA improved significantly and IS/OS integrity and ELM integrity postoperatively, were significantly and positively correlated with final BCVA in group A. Intraoperative complications such as iatrogenic tears and haemorrhage and postoperative such as vitreous haemorrhage and neovascular glaucoma were significantly less in group A compared to group B. CONCLUSION: Pre-operative Avastin reduces the risk of intraoperative and postoperative complications and results in better postoperative anatomic and functional outcomes in fibrovascular delamination surgery for patients with PDR. PMID- 29324932 TI - The neurophysiological and evolutionary considerations of close combat: A modular approach. AB - Close Combat may be identified as a physical confrontation involving armed or unarmed fighting, lethal and/or non-lethal methods, or even simply escape from and/or de-escalation of the confrontation. Our model hypothesizes that distinct areas of the brain are utilized for specific levels of violence, based on evolutionary criteria, and that these levels of violence bring into effect distinct physiological criteria and kinesiology. This model is outlined similar to Paul D. MacLean's triune brain theory, but incorporates distinct processes inherent to the autonomic nervous system (i.e. a "quadrune brain"), and correlates the observed level of violence to a particular response to a specific neural complex associated with very specific reactive kinesiology in the body. Our hypothesis is that the reverse also holds true: specific movements, scenarios and breathing will "activate" corresponding neural centres that in turn correlate to a respective level of violence. Moreover, socio-historic records bear out the premise that specific behavioural violations of social protocols act as "triggers" for assaultive and lethal force involving weapons, and it is very likely that these triggers (and the concomitant decision to engage in assault or lethal force) are processed through neural centres in what McLean has described as his "limbic system." A modular system of close combat is being researched and developed in accord with the above, readily adaptable to the level of violence professional peacekeepers and law enforcement officers may encounter in the course of their duties, but also directly relevant to the self-protection needs of civilians and youth. Distinct modular training regimes have been identified and developed for situations involving escape from a threat, submission of an adversary, and assaultive/lethal force, with the hope of strengthening neural bridges between the four neural complexes postulated in our model, and therefore via these bridges limiting adverse reactions to the psyche from combat stress. PMID- 29324933 TI - Brachytherapy in soft tissue tumours: an interdisciplinary challenge! AB - OBJECTIVE: Interdisciplinary work including surgery and additive radiotherapy is often needed for the therapy of tumours. Beneath this, brachytherapy is an important part of the radiotherapy. It was first used over 100 years ago and is in regular use after the development of afterload technology in the early 1970s. Today it is often used in different tumour therapies, for example in soft tissue sarcoma or breast tumours, in order to decrease the risk of local recurrence. Concerning its benefits, higher doses could be used because of the localized effect with equivalent local control rate and less toxicity of treatment. Moreover, brachytherapy can also shorten the treatment time from 5-7 weeks to some days and is better reconcilable due to its localized effects, thus reducing side effects, as radiation-induced reactions, teleangiectasia and brosis. Precondition for application of brachytherapy is the need of a good soft tissue coverage and wound healing. Therefore, good interdisciplinary cooperation between plastic surgery and radiotherapy is important. After wide surgical resection reconstruction with different kind of flaps are often required, for achieving early wound healing and fast start of radiotherapy. PATIENTS AND METHOD: Between 2011 and 2017 we applied brachytherapy to 13 patients with soft tissue sarcomas and other tumours like merkel-cell-carcinoma, schwannoma, and breast cancer. The treatment consisted of tumour resection, intraoperative insertion of brachytherapy catheters and after that brachytherapy alone or in combination with external beam radiotherapy. In half of the patients a reconstruction with different flaps was required, including pedicled trapezius flap, musculus latissimus dorsi flap and radial forearm flap; in some cases nerve and tendon reconstruction for better function and faster wound healing and so faster start of postoperative brachytherapy was also needed. The mean age of the patients was 55 years (+/-19) and we could start brachytherapy after 3-21 days after the operation, with a mean start on day 8+/-5 postoperatively. Three patients received additional percutaneous radiotherapy. The patients who received only brachytherapy got a dose of 2, 5 or 3Gy twice daily, with a mean total dose of 31+/-3Gy. CONCLUSION: Multidisciplinary work, including surgery as the main procedure and radiotherapy additionally, is needed for a successful treatment of soft tissue tumours. Depending on the type and the stadium of tumour plastic and reconstructive surgery provides soft tissue coverage, faster wound healing and the chance for limb salvage; on the other hand, additive brachytherapy contributes to a good tumour control. Therefore, a close collaboration between the two specialties is of particular importance, in order to improve the effectiveness of the therapy and the postoperative quality of life of the patient. PMID- 29324934 TI - Stem cells therapy: the future in the management of systemic sclerosis? A case report. AB - OBJECTIVE: Systemic sclerosis (SSc) is a connective tissue disorder of unknown etiology, with heterogeneous clinical manifestations and chronic and often progressive course. The diffuse cutaneous form of SSc (dcSSc) is characterized by thickening of the skin (scleroderma) and distinctive involvement of multiple internal organs. Patients with limited cutaneous SSc (lcSSc) generally have long standing Raynaud's phenomenon before other manifestations of SSc appear. Over the last decade the Interest of adipose-derived cell therapy in regenerative medicine has increased continuously. In compare to bone marrow-derived mesenchymal stem cells (MSCs) adipose tissue-derived stem cells (ADSCs) are considered to be ideal for application in regenerative medicine. Zuk et al., introduced a multipotent, undifferentiated, self-renewing progenitor cell population isolated from adipose tissue, called processed lipoaspirate (PLA). However, subcutaneous injections of autologous adipose tissue-derived stromal vascular fraction (ADSVF), which is known to contain mesenchymal stem cells, in hands of Patients with scleroderma for enhancing their impaired hand function is still in an experimental stage, although there are already promising results of the therapy. Commonly available therapeutic options for hands of Patients with systemic sclerosis, vasodilatator drugs and physiotherapy, have many restriction and limited effects. MATERIALS AND METHOD: A 62 years old woman with scleroderma presented with progressive digital necrosis, ulceration, gangrene and impaired wound healing, despite of conventional therapy with vasodilatator drugs. Water-jet-Assisted Liposuction (Body-jet(r) evo, human med AG, Schwerin, Germany) of subcutaneous abdominal fat was carried out under general anesthesia by an experienced surgeon. Autologous adipose tissue-derived stromal vascular fraction (ADSVF) was harvested by in a single-use Q-graft(r) collector (human med AG, Schwerin, Germany). Cells were centrifuged in 400G for 5 minutes and cell pellets were aspirated carefully in a 20mL syringe filled with 0.9% NaCl. A total of ca. 2.72 million cells have been isolated. Meanwhile middle phalangeal amputation of digit 2, 3 and 4 of the left hand were performed, without closing the skin of the amputation stumps. The SVF cell suspension was injected subcutaneous into the area of metacarpophalangeal joints in both hands, as well as into the amputation stump of the left middle finger, and under a skin necrosis in the right hand. RESULTS: The therapy was good tolerated by the patient, with absence of adverse reactions. No infection was observed, despite open amputation. Three weeks after the stem cell therapy, no need to further amputation was demonstrated. The patient is still under regular clinical observation, in order to determine the long term effects of the therapy. CONCLUSION: Application of isolated adipose tissue-derived stem cells seems to be a very promising procedure in the treatment of the manifestation of systemic sclerosis. However, more clinical and experimental studies are required, in order to understand the exact mechanisms of action and standardize the therapy. PMID- 29324935 TI - Right putamen and age are the most discriminant features to diagnose Parkinson's disease by using 123I-FP-CIT brain SPET data by using an artificial neural network classifier, a classification tree (ClT). AB - OBJECTIVE: The differential diagnosis of Parkinson's disease (PD) and other conditions, such as essential tremor and drug-induced parkinsonian syndrome or normal aging brain, represents a diagnostic challenge. 123I-FP-CIT brain SPET is able to contribute to the differential diagnosis. Semiquantitative analysis of radiopharmaceutical uptake in basal ganglia (caudate nuclei and putamina) is very useful to support the diagnostic process. An artificial neural network classifier using 123I-FP-CIT brain SPET data, a classification tree (CIT), was applied. CIT is an automatic classifier composed of a set of logical rules, organized as a decision tree to produce an optimised threshold based classification of data to provide discriminative cut-off values. We applied a CIT to 123I-FP-CIT brain SPET semiquantitave data, to obtain cut-off values of radiopharmaceutical uptake ratios in caudate nuclei and putamina with the aim to diagnose PD versus other conditions. SUBJECTS AND METHOD: We retrospectively investigated 187 patients undergoing 123I-FP-CIT brain SPET (Millenium VG, G.E.M.S.) with semiquantitative analysis performed with Basal Ganglia (BasGan) V2 software according to EANM guidelines; among them 113 resulted affected by PD (PD group) and 74 (N group) by other non parkinsonian conditions, such as Essential Tremor and drug-induced PD. PD group included 113 subjects (60M and 53F of age: 60-81yrs) having Hoehn and Yahr score (HY): 0.5-1.5; Unified Parkinson Disease Rating Scale (UPDRS) score: 6 38; N group included 74 subjects (36M and 38 F range of age 60-80 yrs). All subjects were clinically followed for at least 6-18 months to confirm the diagnosis. To examinate data obtained by using CIT, for each of the 1,000 experiments carried out, 10% of patients were randomly selected as the CIT training set, while the remaining 90% validated the trained CIT, and the percentage of the validation data correctly classified in the two groups of patients was computed. The expected performance of an "average performance CIT" was evaluated. RESULTS: For CIT, the probability of correct classification in patients with PD was 84.19+/-11.67% (mean+/-SD) and in N patients 93.48+/-6.95%. For CIT, the first decision rule provided a value for the right putamen of 2.32+/ 0.16. This means that patients with right putamen values <2.32 were classified as having PD. Patients with putamen values >=2.32 underwent further analysis. They were classified as N if the right putamen uptake value was >=3.02 or if the value for the right putamen was <3.02 and the age was >=67.5 years. Otherwise the patients were classified as having PD. Other similar rules on the values of both caudate nuclei and left putamen could be used to refine the classification, but in our data analysis of these data did not significantly contribute to the differential diagnosis. This could be due to an increased number of more severe patients with initial prevalence of left clinical symptoms having a worsening in right putamen uptake distribution. CONCLUSION: These results show that CIT was able to accurately classify PD and non-PD patients by means of 123I-FP-CIT brain SPET data and provided also cut-off values able to differentially diagnose these groups of patients. Right putamen uptake values resulted as the most discriminant to correctly classify our patients, probably due to a certain number of subjects with initial prevalence of left clinical symptoms. Finally, the selective evaluation of the group of subjects having putamen values >=2.32 disclosed that age was a further important feature to classify patients for certain right putamen values. PMID- 29324936 TI - The impact of lung perfusion scintigraphy in the emergency management of patients with suspected pulmonary embolism. AB - OBJECTIVE: Pulmonary Embolism (PE) is an emergency condition that requires immediate treatment. As the symptoms and the risk factors are nonspecific, PE differential diagnosis is often required. Even if angio-CT is considered the gold standard for PE diagnosis, the frequent allergic condition and/or chronic renal failure of patients make, in most cases, not possible the use of contrast enhancement in emergency with even more increasing use of Lung Perfusion Scintigraphy (LPS), as a simple and fast examination with no preparation/contraindication. The aim of our study is to highlight the role of LPS in the management of patients (pts) with suspected PE admitted to our hospital as an emergency in the "on-call" 24 hours (hrs) service. MATERIALS AND METHOD: We retrospectively revised 2166 LPS performed for suspected PE from January 2012 to December 2016, of which 1730 were urgent. LPS was performed according to the EANM guidelines in the 4 standard projections. The relation between symptoms, risk factors, dosage of D-dimers, other imaging diagnostic tools and LPS results were evaluated by contingency tables and Odds Ratio (OR). RESULTS: The origin unit of pts was: emergency (56.7%), pneumology (10.8%), neurology (4.8%), internal medicine (6.5%), surgery (5.2%), cardiology (3.3%) and other departments (11.2%). 59.3% of the examinations were performed during the on call 24 hrs service. Symptoms were chest pain in 39%, dyspnea in 75%, cough in 22%. In 34% were present two symptoms, while 10% were asymptomatic. D-dimer dosage before LPS was increased in 97% (>500 ug/L). 55.5% had only one risk factor, 18.7% had two or more risk factors. 75.5% of pts had previously performed another diagnostic exam (Chest X-ray in 57%, chest CT in 8.4%, both in 10.1%) while 24.5% did not undergo previous diagnostic exam. The Chest X-ray and/or chest CT resulted negative in 25.4%, suspected for PE in 24.4%, non-specific with pleural effusion in 18.8% and non-specific with inflammatory interstitial diseases in 31.4%. LSP resulted positive for PE in 17% and then treated; LPS resulted negative in the remnant 83%. LPS results were associated with those of CT and Rx (chi2=17.5 P=0.001). LPS resulted positive in 13.8% with negative Chest X-ray and/or CT, in 23.4% with suspected PE, in 15.2% with pleural effusion and in 14.7% with inflammatory interstitial diseases. Furthermore LPS resulted positive in 17.32% without previous diagnostic exam. The increased value of D Dimers (>500ng/ml) observed in 97% was not predictive of PE (OR=0.598 P=0.152). A similar result was observed for cough (OR=1.146 P=0.395) and chest pain (OR=0.927 P=0.601). Conversely, dyspnea appeared to be a significant symptom of PE (OR=1.596 P=0.003). The presence of risk factors is not predictor of PE detected by LPS (OR=1.297 P=0.089). CONCLUSION: LPS has a key role in the early diagnosis but even more in the exclusion of PE, optimizing the management of pts who do not require admission to intensive care unit with high costs and limited availability. LPS confirms to be a simple, quick and inexpensive examination. It does not require preparation and has no side effect so it can be performed in all types of pts including pregnant women, politraumatized and complicated patients, with great impact on resource optimization for intensive care units. Our multi year and large-scale experience related to a metropolitan area suggests that, to date, given the great demand and relevance of this examination, Nuclear Medicine Units must necessarily be organized in order to provide LPS as emergency in on call 24 hrs service. PMID- 29324937 TI - It is not a crisis itself, if does not promote changes. PMID- 29324939 TI - Validation of virtual learning object to support the teaching of nursing care systematization. AB - OBJECTIVE: to describe the content validation process of a Virtual Learning Object to support the teaching of nursing care systematization to nursing professionals. METHOD: methodological study, with quantitative approach, developed according to the methodological reference of Pasquali's psychometry and conducted from March to July 2016, from two-stage Delphi procedure. RESULTS: in the Delphi 1 stage, eight judges evaluated the Virtual Object; in Delphi 2 stage, seven judges evaluated it. The seven screens of the Virtual Object were analyzed as to the suitability of its contents. The Virtual Learning Object to support the teaching of nursing care systematization was considered valid in its content, with a Total Content Validity Coefficient of 0.96. CONCLUSION: it is expected that the Virtual Object can support the teaching of nursing care systematization in light of appropriate and effective pedagogical approaches. PMID- 29324938 TI - Deontological aspects of the nursing profession: understanding the code of ethics. AB - OBJECTIVE: to investigate nursing professionals' understanding concerning the Code of Ethics; to assess the relevance of the Code of Ethics of the nursing profession and its use in practice; to identify how problem-solving is performed when facing ethical dilemmas in professional practice. METHOD: exploratory descriptive study, conducted with 34 (thirty-four) nursing professionals from a teaching hospital in Joao Pessoa, PB - Brazil. RESULTS: four thematic categories emerged: conception of professional ethics in nursing practice; interpretations of ethics in the practice of care; use of the Code of Ethics in the professional practice; strategies for solving ethical issues in the professional practice. FINAL CONSIDERATIONS: some of the nursing professionals comprehend the meaning coherently; others have a limited comprehension, based on jargon. Therefore, a deeper understanding of the text contained in this code is necessary so that it can be applied into practice, aiming to provide a quality care that is, above all, ethical and legal. PMID- 29324940 TI - Risk for acute kidney injury in primary health care. AB - OBJECTIVE: To identify hypertensive and diabetic patients at risk for developing acute kidney injury in the primary health care setting. METHOD: Observational, longitudinal, prospective study. Sample of 56 diabetic and hypertensive individuals. A semi-structured questionnaire was adopted for data collection. For the description of results, were calculated dispersion measures and the Spearman test was used for statistical analysis. The result was considered significant when p <0.05. RESULTS: Of the total sample, 23.2% of users evolved with renal impairment, of which 19.6% with risk for renal injury, and 3.6% with kidney injury itself. Age and body mass index were associated with worsening of renal function (p = 0.0001; p = 0.0003), respectively. CONCLUSION: A quarter of the health system users, hypertensive and diabetic, evolved with impaired renal function, more specifically to stages of risk for renal injury and kidney injury according to the RIFLE classification. PMID- 29324941 TI - Adolescent health promotion based on community-centered arts education. AB - OBJECTIVE: To evaluate the contribution of arts education to health promotion of adolescents in situations of urban social vulnerability. METHOD: Participatory evaluative research, with a qualitative approach, using as a reference the theoretical constructs of Paulo Freire's Conscientization and the Empowerment Evaluation as a method of collecting with adolescents and teachers of an arts education program in the field of the Family Health Strategy. RESULTS: Participants constructed a collective mission that represented the concept of adolescent health promotion. Arts education activities were prioritized and ranked with a mission focus, and over a three-month period, the program implemented health goals through art. In the reevaluation, the group presented a broad look at the implementation of activities and self-determination for change. FINAL CONSIDERATIONS: Arts education is a potential space for nurses to act in the conscientization and empowerment of adolescent health in Primary Health Care. PMID- 29324942 TI - Mothers' perspective on violence against children: constructing meanings. AB - OBJECTIVE: To explore the construct elaborated by the mother on the meaning of violence against the child and to identify, according to the mother's perspective, which measures are most used for the prevention of this phenomenon. METHOD: This is a qualitative research, with the participation of thirty mothers, in a health service in the city of Ananindeua, in the state of Para, Brazil. The methodology consisted of the categorical content analysis, which identified three categories: Violence, Threats of violence and Protective measures. RESULTS: The research showed that mothers attribute different meanings to violence, but the physical and sexual violence were markedly the most highlighted, and the dialogue was the most used protective measure. CONCLUSION: It is essential to strengthen public policies through effective interventions, seeking solutions to address this phenomenon in all segments of society. PMID- 29324943 TI - Knowledge, beliefs, and attitudes of older women in HIV/AIDS prevention. AB - OBJECTIVE: To analyze the knowledge, religious beliefs and the adoption of preventive measures against HIV/AIDS of non-Catholic elderly women. METHOD: A qualitative study, carried out in religious institutions of a municipality in the state of Ceara, Northeast Brazil, with 78 elderly women. Of these, 64 were evangelicals, seven spiritualists and seven Jehovah's Witnesses. A semi structured interview script was used followed by thematic content analysis of participants' responses. RESULTS: After analyzing the empirical data, three categories were elaborated: the first presented the knowledge they had about AIDS; the second, highlighted the beliefs attributed to people with HIV/AIDS; and the third, presented the preventive measures to HIV/AIDS adopted by them. FINAL CONSIDERATIONS: There were participants with knowledge gaps and failure to use preventive measures against HIV/AIDS. They suggested that religious institutions can be venues for lectures on HIV/AIDS prevention. PMID- 29324944 TI - Cultural adaptation of Quality Of Care Through The Patient's Eyes -QUOTE-HIV. AB - OBJECTIVE: to translate and adapt Quality of Care Through the Patient's Eyes - HIV (QUOTE-HIV) for the Brazilian population living with HIV/AIDS. METHOD: a methodological study, which followed the stages of translation, synthesis, back translation, evaluation by the committee of experts and pre-test for cultural adaptation of the instrument. RESULTS: the process of translation and cultural adaptation was considered adequate. Evaluation by the expert committee resulted in semantic, structural and grammatical adequacy of the evaluated items. 30 subjects considered the instrument to be easy to understand and suggested minor adjustments in some items. CONCLUSION: the Brazilian version of QUOTE-HIV has been adapted and validated in relation to its content. However, this is a study that precedes the process of evaluating the psychometric properties of the instrument, the results of which will be presented in a later publication. PMID- 29324945 TI - Health advocacy by nurses in the Family Health Strategy: barriers and facilitators. AB - OBJECTIVE: Identify the barriers and facilitators of health advocacy to users delivered by nurses from the Family Health Strategy. METHOD: Qualitative study carried out with nurses from the Family Health Strategy of a city in the south of Brazil. Study participants were 15 nurses, who were interviewed. The content of the interviews was recorded, transcribed and analyzed in the light of the discursive text analysis. RESULTS: Two categories emerged, one about the lack of organization at the workplace, bureaucracy and limitations to professional work in health environments, and another about the facilitating aspects to exercise advocacy both individually and collectively. CONCLUSION: When nurses, provided with technical, scientific and relational knowledge, are empowered to make decisions, they are not only supported by other professionals at work but also develop actions of health advocacy to users, thus qualifying the care delivered. PMID- 29324946 TI - Realities and perspectives of adolescent mothers in their first pregnancy. AB - OBJECTIVE: to understand the trajectory of adolescents regarding the first pregnancy, contemplating realities and perspectives. METHOD: qualitative study, based on the Schutz theoretical framework, with 30 adolescents assisted in an outpatient clinic for adolescents in Fortaleza, Ceara, Brazil. From the narrative interviews carried out in the first semester of 2013, in the return for the first consultation of the puerperium, the communicative processes were identified, the central ideas and units of meanings expressed in the themes were abstracted: I was dating and became pregnant; realities and perspectives. RESULTS: adolescents justified pregnancy through sexual drive and insufficient prevention; they narrated the fear faced, difficulties in motherhood and continuity of studies. The realities coexisted with the prospects of family members and partners helping to educate the child to achieve a different future from what they themselves experienced. FINAL CONSIDERATIONS: adolescents experienced motherhood with ambivalent conflicts because they were young mothers, but they wanted to raise and educate their children, even those with minimal living conditions. PMID- 29324947 TI - Cognitive changes in nurses working in intensive care units. AB - OBJECTIVE: To measure the levels of stress, anxiety, and depression of nurses working in ICUs, relating them to levels of attention before and after 24 hours. METHOD: An observational, quantitative, analytical study with 18 nurses undergoing an inventory of stress, anxiety, and depression, as well as assessment of attention levels and psychomotor functioning. RESULTS: Sixty-one percent showed positive for stress. Depression was observed in 33%; and anxiety in 99.9%. A strong correlation between stress and depression (rho = 0.564 with p <0.05) and anxiety (rho = 1 with p <0.05) was observed. There was a weak correlation between stress and task execution time in M2 (rho = 0.055) for TMT A, a fact that did not occur in M0 (rho = -0.249). CONCLUSION: The study shows that the workload of the nurses working in 24-hour shifts in the ICU is correlated with high levels of stress, decreases in the attention process, and psychomotor decline. PMID- 29324949 TI - Training of adolescent multipliers from the perspective of health promotion core competencies. AB - OBJECTIVE: Recognize the domains of health promotion core competencies in the training process of adolescents carried out by nursing students. METHOD: Qualitative and descriptive study, which used the theoretical methodological contribution Developing Competencies and Professional Standards for Health Promotion Capacity Building in Europe (CompHP), carried out with 14 nursing students. RESULTS: There were four domains: Enable Change; Mediate through Partnership; Communication; and Leadership. These domains came from the interest and commitment of adolescents in intersectoral partnership, the use of communication techniques, and the role of facilitator to catalyze learning and empowerment. CONCLUSION: There were some domains of core competency in the training of adolescents, suggesting that nursing students act as health promoters. Challenges for Nursing are the implementation of a theoretical contribution of CompHP in undergraduate and ongoing training to carry out health promotion action. PMID- 29324948 TI - Validation of nursing diagnoses, interventions and outcomes in a pediatric clinic. AB - OBJECTIVES: To elaborate operational definitions for the Nomenclature nursing diagnoses, interventionsand outcomes of the Pediatric Clinic at a University Hospital and carry out a validation of the content and clinical aspects of this Nomenclature. METHOD: Methodological research, developed in two stages: documentary study, for the validation of content of the operational definitions of nursing diagnoses; and secondly applied research, via clinical cases, performed with children from 0 to 5 years. RESULTS: The 126 diagnoses were submitted to consensus validation and 55.6% were validated. Six clinical case studies were carried out, using the phases of the nursing process, based on the theory of Basic Human Needs, identifying 24.3% of the validated diagnoses and 54.5% of the nursing interventions listed in the Nomenclature. CONCLUSION: The study showed the effectiveness of using the Nomenclature in the Pediatric Clinic, in order to optimize the care andquality of health services. PMID- 29324950 TI - Social determinants of health related to adhesion to mammography screening. AB - OBJECTIVE: To identify proximal, intermediary and individual social determinants related to mammography adherence, according to the Social Determinants of Health model proposed by Dahlgren and Whitehead. Method: Correlational cross-sectional study, carried out with a sociodemographic and clinical data questionnaire and the Champion's Health Belief Model Scale, translated and adapted for use in Brazil. Data analyzed by multiple linear regression, from the domains scale, and sociodemographic and clinical variables were used as predictors. RESULTS: The age group of 60-64 years (55.0%) was highlighted, 22 (55.0%) women had a stable partner; and 14 (65.0%) completed higher education. The domain with the greatest influence on adhesion to mammography was perceived barriers. CONCLUSION: The social determinants of health are directly related to the levels of adherence to the exam among women, as well as the perceived benefits, susceptibilities and barriers. PMID- 29324951 TI - Signs and symptoms in Gaucher Disease: priority nursing diagnoses. AB - OBJECTIVE: Identify the signs and symptoms of patients with Gaucher Disease, inferring possible priority nursing diagnoses. METHOD: Cross-sectional study, developed in a specialized laboratory, between 2013 and 2015. The sample (n = 91) comprised the records of patients with genetic diagnosis for Gaucher Disease. The study respected research norms. RESULTS: Prevalence of female sex (57.1%), age at diagnosis between 0 and 10 years, and origin from the Southeast Region of Brazil were prevalent. Hematologic changes, bone pain, hepatomegaly, splenomegaly, and fatigue were the most recurrent signs and symptoms. The inferred diagnoses for the studied population were: Risk for bleeding; Fatigue; Chronic pain and Acute pain; Impaired physical mobility; Imbalanced nutrition: less than body requirements; and Risk for Developmental Delay. CONCLUSION: The establishment of Priority Nursing Diagnoses based on signs and symptoms makes it possible to achieve expected outcomes for each individual in the care context. PMID- 29324952 TI - Analysis of incidents notified in a general hospital. AB - OBJECTIVE: To evaluate the incidents spontaneously notified in a general hospital in Minas Gerais. METHOD: Retrospective, descriptive, quantitative study performed at a general hospital in Montes Claros - Minas Gerais State. The sample comprised 1,316 incidents reported from 2011 to 2014. The data were submitted to descriptive statistical analysis using Statistical Package for the Social Sciences version 18.0. RESULTS: The prevalence of incidents was 33.8 per 1,000 hospitalizations, with an increase during the investigation period and higher frequency in hospitalization units, emergency room and surgical center. These occurred mostly with adult clients and relative to the medication supply chain. The main causes were noncompliance with routines/protocols, necessitating changes in routines and training. CONCLUSION: There was a considerable prevalence of incidents and increase in notifications during the period investigated, which requires the attention of managers and hospital staff. Nevertheless, we observed development of the patient safety culture. PMID- 29324953 TI - Evaluation of the risk of misidentification of women in a public maternity hospital. AB - OBJECTIVE: To determine the frequency of similar names and hospital records of women in a public teaching maternity hospital and the risk of misidentification resulting from the similarity in spelling and pronunciation of the names and in records. METHOD: Quantitative, documental and case study of 5,975 admissions that occurred between 2011 and 2014. The data name, admission and discharge date, date of birth, hospital record and bed number were collected from an electronic information system. Analysis encompassed descriptive statistics and design of an algorithm for comparison of text and sound. RESULTS: Examination of the names revealed that 86% of the misidentification cases resulted from identical surnames and 96.5% from a sound similarity in the first names. There were patients with identical first and last names at least one day a week. CONCLUSION: The risk of misidentification of patients is a reality, which stresses the importance of checking and pronouncing the complete names correctly. PMID- 29324954 TI - Standard Operational Protocols in professional nursing practice: use, weaknesses and potentialities. AB - OBJECTIVE: to evaluate the use of Standard Operational Protocols (SOPs) in the professional practice of the nursing team based on the theoretical framework of Donabedian, as well as to identify the weaknesses and potentialities from its implementation. METHOD: Evaluative research, with quantitative approach performed with nursing professionals working in the Health Units of a city of Sao Paulo, composed of two stages: document analysis and subsequent application of a questionnaire to nursing professionals. RESULTS: A total of 247 nursing professionals participated and reported changes in the way the interventions were performed. The main weaknesses were the small number of professionals, inadequate physical structure and lack of materials. Among the potentialities were: the standardization of materials and concern of the manager and professional related to patient safety. CONCLUSION: The reassessment of SOPs is necessary, as well as the adoption of a strategy of permanent education of professionals aiming at improving the quality of care provided. PMID- 29324955 TI - Burnout and depressive symptoms in intensive care nurses: relationship analysis. AB - OBJECTIVE: To analyze the existence of a relationship between burnout and depressive symptoms among intensive care unit nursing staff. METHOD: A quantitative, descriptive, cross-sectional study with 91 intensive care nurses. Data collection used a sociodemographic questionnaire, the Maslach Burnout Inventory - Human Services Survey, and the Beck Depression Inventory - I. The Pearson test verified the correlation between the burnout dimension score and the total score from the Beck Depression Inventory. Fisher's exact test was used to analyze whether there is an association between the diseases. RESULTS: Burnout was presented by 14.29% of the nurses and 10.98% had symptoms of depression. The higher the level of emotional exhaustion and depersonalization, and the lower professional accomplishment, the greater the depressive symptoms. The association was significant between burnout and depressive symptoms. CONCLUSION: Nurses with burnout have a greater possibility of triggering depressive symptoms. PMID- 29324956 TI - Identity of primary health care nurses: perception of "doing everything". AB - OBJECTIVE: To analyze, in the speeches of nurses, the habitus that conforms their professional identity in the primary health care area. METHOD: Qualitative study, carried out from March to October 2015, with nurses of primary healthcare units in the cities of Cajazeiras, in the state of Paraiba, and Maracanau, in the state of Ceara. Data were collected by means of semi-structured interviews, and analyzed through discourse analysis. RESULTS: Nurses, in their practice and perception, perceive that professional identity is linked to the meaning that involves the word "everything". This situation constitutes a habitus that directs the range of daily actions, often distant from the profession's core of knowledge. FINAL CONSIDERATIONS: Trying to be and do everything in primary health care involves negative repercussions in the professional identity of nurses. Strategic guidance is necessary in order to achieve and embrace elements that reflect the essence of this category. PMID- 29324957 TI - Trends in the job market of nurses in the view of managers. AB - OBJECTIVE: to identify and interpret the main trends of the labor market for nurses in Rio Grande do Norte, based on the opinion of managers of training institutions and employers. METHOD: Data were collected through interviews with key informants, organized using Atlas.ti software resources and examined under the thematic content review. RESULTS: the study showed six trends in the labor market of nurses: availability of professionals to the market; worsening working conditions with precariousness; indication for insertion in employment; unemployment for nurses; shortage of nurses; and the existence of a cooperative of nursing professionals. FINAL CONSIDERATIONS: the current scenario of growth in the number of registered nurses without the expansion of the job supply has remained, unemployment tends to increase and work conditions will worsen. PMID- 29324958 TI - Enhancing the process of teaching and learning homecare. AB - OBJECTIVE: to identify possibilities for improvement in the process of teaching and learning homecare in nursing, pharmacy, medicine, nutrition, dentistry and occupational therapy courses. METHOD: qualitative research using the Grounded Theory approach. Sixty-three semi-structured interviews were conducted with students, teachers and graduates of the six mentioned courses at a public university in the south of Brazil. Data analysis was performed through open, axial and selective coding. RESULTS: the possibilities for improving the process of teaching and learning homecare included: scientific production in the area; use of different teaching techniques; development of extracurricular activities; extension projects; curricular reformulation; and laboratory simulation. FINAL CONSIDERATIONS: the strategies cited in this study enable undergraduate courses in health to envisage the possibility of enhance the process of teaching and learning homecare. PMID- 29324959 TI - Surveillance of intradomiciliary contacts of leprosy cases: perspective of the client in a hyperendemic municipality. AB - OBJECTIVE: To characterize approach methods for intradomiciliary contacts (IdC) of leprosy cases resident in Northern Brazil, during 2001-2012. METHOD: A cross sectional and descriptive study in the state of Rondonia. Included IdC of leprosy cases diagnosed/reported in SINAN-Ministry of Health (MS), 2001-2012. A semi structured instrument was applied to the IdCs, with six interventions: complete dermatological examination; complete neurological examination; BCG vaccination; instructions for return to the health unit; BCG guidance; and guidance to mobilize other contacts.Results: From a total of 459 IdCs included, failure to perform the dermatological examination was reported by 191 people (41.6%) and the neurological examination, by 252 (54.9%); 138 (30.1%) did not have BCG indicated and 122 (26.6%) did not receive guidelines; 257 (56.0%) were not advised to return for a new evaluation/follow-up and 186 (40.5%) were not asked to mobilize other contacts. CONCLUSION: Despite the favorable indicators of IdC examination coverage in the state, the evaluation process presents patterns that indicate operational quality failures. PMID- 29324960 TI - Impact of critical illness news on the family: hermeneutic phenomenological study. AB - OBJECTIVE: Understand the impact of critical-illness news on the experience of family members at an Intensive Care Unit. METHOD: Phenomenological approach according to Van Manen's method. Open interviews were held with 21 family members. From analysis and interpretation of the data, three essential themes were identified: the unexpected; the pronouncement of death; and the impact on self-caring within the family. The study complied with the ethical principles inherent to research involving humans. RESULTS: The unexpected news and death of the sick person influence the well-being and self-care of family members, affecting their ability for analysis and decision making. It was observed that the family experiences the news with suffering, mainly due to the anticipation arising from the events. FINAL CONSIDERATIONS: The humanity of nurses was revealed in response to the needs of the family. In view of the requirements for information, it was verified that the information transmitted allowed them to become aware of themselves, to become empowered in their daily lives and to alleviate the emotional burden experienced. PMID- 29324962 TI - Care provided by the father to the child with cancer under the influence of masculinities: qualitative meta-synthesis. AB - OBJECTIVE: To synthesize and interpret findings and conclusions of qualitative research addressing the experience of the father in the care of the child with cancer. METHOD: Meta-synthesis of 16 qualitative studies from six databases, analyzed through taxonomic analysis. RESULTS: Child and adolescent cancer have several repercussions on the daily life of the father, especially related to the stigma around the disease, the fear of the unknown and the social and family role. Faced with the illness and the need to care for the child, the father seeks to recover normality in the family and transitions between hegemonic masculine behaviors and practices culturally recognized as female. FINAL CONSIDERATIONS: The complex experience of the father, influenced by masculinities, was evidenced. The limitations regard the restricted understanding of the contextual specificities of the experiences, due to the limited characteristics of the parents and children described in the studies. The knowledge produced is useful to promote involvement of fathers in the care of the child, as well as to strengthen and assist him in this task. PMID- 29324963 TI - Quality of life in adults with sickle cell disease: an integrative review of the literature. AB - OBJECTIVE: To identify the available evidence in the literature on health-related quality of life in adults with sickle cell disease. METHOD: integrative review of MEDLINE, CUMED, LILACS and SciELO databases, from articles developed in this area, published between 2005 and 2015, in English, Portuguese or Spanish. RESULTS: 22 articles were included, six scales were used to evaluate health related quality of life scores: three generic and three specific. No specific scale for adults with sickle cell disease has been adapted to Brazilian Portuguese so far. Patients affected by frequent painful crises, with low adherence to treatment, had a compromised quality of life. CONCLUSION: Selected studies have shown that patients with sickle cell disease have worse scores than the general population. These indicators should be instrumental to the nurse in the proposal of interventions and strategies of assistance and socio-educational, with a view to improving the quality of life of this clientele. PMID- 29324961 TI - Naturalization, reciprocity and marks of marital violence: male defendants' perceptions. AB - OBJECTIVE: to analyze male criminals' perception about marital violence. METHOD: An exploratory, descriptive, qualitative study undertaken with 23 men who were criminally prosecuted for marital violence. A multimethod data collection was conducted, with individual interview and focal group techniques combined, between May and December 2015. The data collected were initially categorized using the NVIVO(r) 11 software program, and then organized using the Collective Subject Discourse method. RESULTS: the collective discourses reveal that, in the male's perception, conjugal violence is inherent in a marital relationships: it is a private, reciprocal problem that leaves body marks. CONCLUSION: gender dissymmetry as a social construct is evidenced, signaling the need to create spaces for reflection and re-signification of men and women, from a gender perspective. PMID- 29324964 TI - Family conference in palliative care: concept analysis. AB - OBJECTIVE: to analyze the attributes, antecedents and consequents of the family conference concept. METHOD: Walker and Avante's method for concept analysis and the stages of the integrative review process, with a selection of publications in the PubMed, Cinahl and Lilacs databases focusing on the family conference theme in the context of palliative care. RESULTS: the most cited antecedents were the presence of doubts and the need to define a care plan. Family reunion and working instrument were evidenced as attributes. With respect to consequents, to promote the effective communication and to establish a plan of consensual action were the most remarkable elements. FINAL CONSIDERATIONS: the scarcity of publications on the subject was observed, as well as and the limitation of the empirical studies to the space of intensive therapy. Thus, by analyzing the attributes, antecedents and consequents of the concept it was possible to follow their evolution and to show their efficacy and effectiveness as a therapeutic intervention. PMID- 29324965 TI - Analysis of Brazilian publications on distance education in nursing: integrative review. AB - OBJECTIVE: To analyze the publications that focus on distance education in nursing in Brazil from 2010 to 2016. METHOD: Integrative review of the literature with data collection in June 2016 in the following databases: LILACS, MEDLINE via PUBMED, CINAHL and SCOPUS. For the data analysis and interpretation, the thematic categorization was chosen. RESULTS: We selected 18 articles for discussion, whose textual analysis permitted the construction of three thematic categories: use of virtual technologies for distance education in nursing; construction of virtual learning environments with the aid of virtual technologies for distance education in nursing; and evaluation of the learning process through virtual technologies for distance education of nurses. CONCLUSION: Distance Education stands out as an effective teaching-learning strategy in this type of education in Brazilian nursing, focused mainly on the improvement and complement of traditional teaching. PMID- 29324966 TI - Advanced Practice Nursing in Pediatric Urology: experience report in the Federal District. AB - OBJECTIVE: To describe the creation and implementation of the extension program Advanced Practice Nursing in Pediatric Urology, developed in the outpatient clinic of a teaching hospital in the Federal District. METHOD: This is an experience report regarding the implementation of an outpatient service aimed at children and adolescents with symptoms of bladder and bowel dysfunction. RESULTS: Because it is an extension program linked to the university, it follows a different model of care, valuing empowerment, informed and shared decision making, which results in a stronger bond between patients, family and the Pediatric Urology nursing team. It has also become a privileged space for the production and use of scientific knowledge, associated with the principles of evidence-based practice. CONCLUSION: This project shows a different performance of the nurse-specialist-professor-researcher in Pediatric Urology Nursing, and it has become a reference in the Federal District, mainly for undergraduate and graduate nursing students. PMID- 29324967 TI - Theoretical saturation in qualitative research: an experience report in interview with schoolchildren. AB - OBJECTIVE: report the experience of applying the theoretical data saturation technique in qualitative research with schoolchildren. METHOD: critical reading of primary sources and compilation of raw data, followed by thematic grouping through colorimetric codification and allocation of themes/types of statements in charts to find theoretical saturation for each grouping. RESULTS: colorimetric codification occurred according to previously established themes: bodily hydration; physical activities and play; handling of sickle-cell disease; feeding and clothing. On the eleventh interview, it was possible to reach the theoretical saturation of themes, with four additional interviews being performed. CONCLUSION: this experience report enabled the description of the five sequential steps for identification of theoretical data saturation in qualitative research conducted with schoolchildren. PMID- 29324968 TI - Long-Term Effects of an Intensive Lifestyle Intervention on Electrocardiographic Criteria for Left Ventricular Hypertrophy: The Look AHEAD Trial. AB - BACKGROUND: Left ventricular hypertrophy assessed by electrocardiography (ECG LVH) is a marker of subclinical cardiac damage and a strong predictor of cardiovascular disease (CVD) events. The prevalence of ECG-LVH is increased in obesity and type 2 diabetes; however, there are no data on the long-term effects of weight loss on ECG-LVH. The purpose of this study was to determine whether an intensive lifestyle intervention (ILI) reduces ECG-LVH in overweight and obese adults with type 2 diabetes. METHODS: Data from 4,790 Look AHEAD participants (mean age: 58.8 +/- 6.8 years, 63.2% White) who were randomized to a 10-year ILI (n = 2,406) or diabetes support and education (DSE, n = 2,384) were included. ECG LVH defined by Cornell voltage criteria was assessed every 2 years. Longitudinal logistic regression analysis with generalized estimation equations and linear mixed models were used to compare the prevalence of ECG-LVH and changes in absolute Cornell voltage over time between intervention groups, with tests of interactions by sex, race/ethnicity, and baseline CVD status. RESULTS: The prevalence of ECG-LVH at baseline was 5.2% in the DSE group and 5.0% in the ILI group (P = 0.74). Over a median 9.5 years of follow-up, prevalent ECG-LVH increased similarly in both groups (odds ratio: 1.02, 95% confidence interval: 0.83-1.25; group * time interaction, P = 0.49). Increases in Cornell voltage during follow-up were also similar between intervention groups (group * time interaction, P = 0.57). Intervention effects were generally similar between subgroups of interest. CONCLUSIONS: The Look AHEAD long-term lifestyle intervention does not significantly lower ECG-LVH in overweight and obese adults with type 2 diabetes. CLINICAL TRIALS REGISTRATION: Trial Number NCT00017953 (ClinicalTrials.gov). PMID- 29324970 TI - Watson for Oncology and breast cancer treatment recommendations: agreement with an expert multidisciplinary tumor board. AB - Background: Breast cancer oncologists are challenged to personalize care with rapidly changing scientific evidence, drug approvals, and treatment guidelines. Artificial intelligence (AI) clinical decision-support systems (CDSSs) have the potential to help address this challenge. We report here the results of examining the level of agreement (concordance) between treatment recommendations made by the AI CDSS Watson for Oncology (WFO) and a multidisciplinary tumor board for breast cancer. Patients and methods: Treatment recommendations were provided for 638 breast cancers between 2014 and 2016 at the Manipal Comprehensive Cancer Center, Bengaluru, India. WFO provided treatment recommendations for the identical cases in 2016. A blinded second review was carried out by the center's tumor board in 2016 for all cases in which there was not agreement, to account for treatments and guidelines not available before 2016. Treatment recommendations were considered concordant if the tumor board recommendations were designated 'recommended' or 'for consideration' by WFO. Results: Treatment concordance between WFO and the multidisciplinary tumor board occurred in 93% of breast cancer cases. Subgroup analysis found that patients with stage I or IV disease were less likely to be concordant than patients with stage II or III disease. Increasing age was found to have a major impact on concordance. Concordance declined significantly (P <= 0.02; P < 0.001) in all age groups compared with patients <45 years of age, except for the age group 55-64 years. Receptor status was not found to affect concordance. Conclusion: Treatment recommendations made by WFO and the tumor board were highly concordant for breast cancer cases examined. Breast cancer stage and patient age had significant influence on concordance, while receptor status alone did not. This study demonstrates that the AI clinical decision-support system WFO may be a helpful tool for breast cancer treatment decision making, especially at centers where expert breast cancer resources are limited. PMID- 29324971 TI - Response to Cherrie Letter, 'How to Quantitatively Assess Dermal Exposure to Volatile Organic Compounds'. PMID- 29324969 TI - Perspective: APOBEC mutagenesis in drug resistance and immune escape in HIV and cancer evolution. AB - The apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like (APOBEC) mutational signature has only recently been detected in a multitude of cancers through next-generation sequencing. In contrast, APOBEC has been a focus of virology research for over a decade. Many lessons learnt regarding APOBEC within virology are likely to be applicable to cancer. In this review, we explore the parallels between the role of APOBEC enzymes in HIV and cancer evolution. We discuss data supporting the role of APOBEC mutagenesis in creating HIV genome heterogeneity, drug resistance, and immune escape variants. We hypothesize similar functions of APOBEC will also hold true in cancer. PMID- 29324973 TI - Associations Among Plasma Total Homocysteine Levels, Circadian Blood Pressure Variation, and Endothelial Function in Hypertension. PMID- 29324972 TI - Prognostic and predictive role of neutrophil/lymphocytes ratio in metastatic colorectal cancer: a retrospective analysis of the TRIBE study by GONO. AB - Background: Neutrophil/lymphocyte ratio (NLR), defined as absolute neutrophils count divided by absolute lymphocytes count, has been reported as poor prognostic factor in several neoplastic diseases but only a few data are available about unresectable metastatic colorectal cancer (mCRC) patients (pts). The aim of our study was to evaluate the prognostic and predictive role of NLR in the TRIBE trial. Patients and methods: Pts enrolled in TRIBE trial were included. TRIBE is a multicentre phase III trial randomizing unresectable and previously untreated mCRC pts to receive FOLFOXIRI or FOLFIRI plus bevacizumab. A cut-off value of 3 was adopted to discriminate pts with low (NLR < 3) versus high (NLR >= 3) NLR, as primary analysis. As secondary analysis, NLR was treated as an ordinal variable with three levels based on terciles distribution. Results: NLR at baseline was available for 413 patients. After multiple imputation at univariate analysis, patients with high NLR had significantly shorter progression-free survival (PFS) [hazard ratio (HR) 1.27 (95% CI 1.05-1.55), P = 0.017] and overall survival (OS) [HR 1.56 (95% CI 1.25-1.95), P < 0.001] than patients with low NLR. In the multivariable model, NLR retained a significant association with OS [HR 1.44 (95% CI 1.14-1.82), P = 0.014] but not with PFS [HR 1.18 (95% CI 0.95-1.46), P = 0.375]. No interaction effect between treatment arm and NLR was evident in terms of PFS (P for interaction = 0.536) or OS (P for interaction = 0.831). Patients with low [HR 0.84 (95% CI 0.64-1.08)] and high [HR 0.73 (95% CI 0.54-0.97)] NLR achieved similar PFS benefit from the triplet and consistent results were obtained in terms of OS [HR 0.83 (95% CI 0.62-1.12) for low NLR; HR 0.82 (95% CI 0.59-1.12) for high NLR]. Conclusion: This study confirmed the prognostic role of NLR in mCRC pts treated with bevacizumab plus chemotherapy in the first line, showing the worse prognosis of pts with high NLR. The advantage of the triplet is independent of NLR at baseline. PMID- 29324974 TI - The role of endoplasmic reticulum aminopeptidase 2 in modulating immune detection of choriocarcinoma. AB - Gestational choriocarcinomas are derived from placental trophoblast cells, with HLA-C being the only class I polymorphic molecule expressed. However, choriocarcinomas have not been profiled for endoplasmic reticulum aminopeptidase 2 (ERAP2) expression. ERAP2 trims peptides presented by human leukocyte antigens (HLA) that have shown to modulate immune response. Over 50% of choriocarcinomas we screened lack ERAP2 expression, which suggests that the absence of ERAP2 expression allows immune evasion of choriocarcinoma cells. We demonstrate that the ability of choriocarcinoma cells to activate lymphocytes was lowest with cells lacking ERAP2 (JEG-3) or HLA-C (JAr). This observation suggests that activation is dependent on expression of both ERAP2 and HLA-C molecules. In addition, an ERAP2 variant in which lysine is changed to asparagine (K392N) results in increased trimming activity (165-fold) for hydrophobic peptides and biologically never been detected. We hypothesize that homozygosity for the N392 ERAP2 variant is prohibited because it modulates the immune recognition of placental trophoblasts. We demonstrate that NK-cell activation and killing were significantly dependent on forced expression of the N392 ERAP2 isoform in JEG-3 cells. Cytotoxicity was confirmed by 7AAD killing assays showing that N392 ERAP2 isoform expressing JEG-3 cells had the highest percentage of apoptotic cells independent of the expression level of CD11a on lymphocytes. This is the first report showing that N392 ERAP2 promotes an immune clearance pathway for choriocarcinoma cells, and provides an explanation for why embryonic homozygosity for the N392 ERAP2 variant is not detected in any population. PMID- 29324975 TI - Strong population bottleneck and repeated demographic expansions of Populus adenopoda (Salicaceae) in subtropical China. AB - Background and Aims: Glacial refugia and inter-/postglacial recolonization routes during the Quaternary of tree species in Europe and North America are well understood, but far less is known about those of tree species in subtropical eastern Asia. Thus, we have examined the phylogeographic history of Populus adenopoda (Salicaceae), one of the few poplars that naturally occur in this subtropical area. Methods: Genetic variations across the range of the species in subtropical China were surveyed using ten nuclear microsatellite loci and four chloroplast fragments (matK, trnG-psbK, psbK-psbI and ndhC-trnV). Coalescent based analyses were used to test demographic and migration hypotheses. In addition, species distribution models (SDMs) were constructed to infer past, present and future potential distributions of the species. Key Results: Thirteen chloroplast haplotypes were detected, and haplotype-rich populations were found in central and southern parts of the species' range. STRUCTURE analyses of nuclear microsatellite loci suggest obvious lineage admixture, especially in peripheral and northern populations. DIYABC analysis suggests that the species might have experienced two independent rounds of demographic expansions and a strong bottleneck in the late Quaternary. SDMs indicate that the species' range contracted during the Last Glacial Maximum (LGM), and contracted northward but expanded eastward during the Last Interglacial (LIG). Conclusions: Chloroplast data and SDMs suggest that P. adenopoda might have survived in multiple glacial refugia in central and southern parts of its range during the LGM. Populations of the Yunnan-Guizhou Plateau in the southern part have high chloroplast DNA diversity, but may have contributed little to the postglacial recolonization of northern and eastern parts. The three major demographic events inferred by DIYABC coincide with the initiation of the LIG, start of the LGM and end of the LGM, respectively. The species may have experienced multiple rounds of range contraction during glacial periods and range expansion during interglacial periods. Our study corroborates the importance of combining multiple lines of evidence when reconstructing Quaternary population evolutionary histories. PMID- 29324977 TI - Maternal metabolic, immune, and microbial systems in late pregnancy vary with malnutrition in mice. AB - Malnutrition is a global threat to pregnancy health and impacts offspring development. Establishing an optimal pregnancy environment requires the coordination of maternal metabolic and immune pathways, which converge at the gut. Diet, metabolic, and immune dysfunctions have been associated with gut dysbiosis in the nonpregnant individual. In pregnancy, these states are associated with poor pregnancy outcomes and offspring development. However, the impact of malnutrition on maternal gut microbes, and their relationships with maternal metabolic and immune status, has been largely underexplored. To determine the impact of undernutrition and overnutrition on maternal metabolic status, inflammation, and the microbiome, and whether relationships exist between these systems, pregnant mice were fed either a normal, calorically restricted (CR), or a high fat (HF) diet. In late pregnancy, maternal inflammatory and metabolic biomarkers were measured and the cecal microbiome was characterized. Microbial richness was reduced in HF mothers although they did not gain more weight than controls. First trimester weight gain was associated with differences in the microbiome. Microbial abundance was associated with altered plasma and gut inflammatory phenotypes and peripheral leptin levels. Taxa potentially protective against elevated maternal leptin, without the requirement of a CR diet, were identified. Suboptimal dietary conditions common during pregnancy adversely impact maternal metabolic and immune status and the microbiome. HF nutrition exerts the greatest pressures on maternal microbial dynamics and inflammation. Key gut bacteria may mediate local and peripheral inflammatory events in response to maternal nutrient and metabolic status, with implications for maternal and offspring health. PMID- 29324976 TI - Ginsenoside Rg1 inhibits apoptosis by increasing autophagy via the AMPK/mTOR signaling in serum deprivation macrophages. AB - Ginsenoside Rg1 (Rg1) has been widely used in a broad range of cardiovascular and cerebral-vascular diseases because of its unique therapeutic properties. However, the underlying mechanisms of Rg1 in the treatment of atherosclerosis have not been fully explored. This study sought to determine the precise molecular mechanisms on how Rg1 might be involved in regulating apoptosis in serum deprivation-induced Raw264.7 macrophages and primary bone marrow-derived macrophages. Results demonstrated that Rg1 treatment effectively suppressed apoptosis and the expression of phosphorylation level of mTOR induced by serum deprivation in Raw264.7 macrophages; the expressions of autophagic flux-related proteins including Atg5, Beclin1, microtubule-associated protein 1 light chain 3 (LC3), p62/SQSMT1, and the phosphorylation level of AMPK were concomitantly up regulated. 3-Methyl-adennine (3-MA), the most widely used autophagy inhibitor, strongly up-regulated the expression of cleaved caspase-3, and blocked the anti apoptosis function of Rg1 in macrophages. Importantly, autophagic flux was activated by Rg1, while Beclin1 knockdown partially abolished the anti-apoptosis of Rg1. Moreover, compound C, an AMPK inhibitor, partially decreased the expressions of phosphorylation of mTOR, Atg5, Beclin1, LC3, and p62/SQSMT1, which were increased by Rg1. AICAR, an AMPK inducer, promoted the protein expressions of phosphorylation of mTOR, Atg5, Beclin1, LC3, and p62/SQSMT1. In conclusion, Rg1 significantly suppressed apoptosis induced by serum deprivation in macrophages. Furthermore, Rg1 could effectively induce the autophagic flux by attenuating serum deprivation-induced apoptosis in Raw264.7 macrophages through activating the AMPK/mTOR signaling pathway. PMID- 29324978 TI - Effect of fish meal supplementation on luteal sensitivity to intrauterine infusions of prostaglandin F2alpha in the bovine. AB - Progesterone is a steroid hormone secreted from the corpus luteum (CL), which is responsible for establishment and maintenance of pregnancy. Early embryonic mortality often occurs due to inadequate regulation of uterine prostaglandin (PG) F2alpha secretion, leading to a decrease in progesterone and loss of pregnancy. The objective of the current study was to determine the effects of fish meal supplementation on luteal sensitivity to intrauterine infusions of PGF2alpha. Nonlactating beef cows received corn gluten meal or fish meal supplementation for 60 days. Cows were administered four intrauterine infusions of 0.25 mL saline at 6-h intervals (n = 6 corn gluten meal; n = 5 fish meal) or two doses of 0.5 mg PGF2alpha in 0.25 mL saline at 12-h intervals (n = 11 corn gluten meal; n = 11 fish meal) commencing on days 10 to 12 of the estrous cycle. At time of each infusion, luteal biopsies were collected to determine the effects of supplementation on expression of immediate early and steroidogenic genes involved in cholesterol transport and progesterone biosynthesis. Transrectal ultrasonography was performed to measure diameter of CL, and blood samples were collected to determine serum progesterone. Intrauterine infusion of PGF2alpha resulted in upregulation or no change in FOS, NR4A1, and 3BHSD and downregulation in LDLR, STARD1, and CYP11A1. Although CL diameter decreased, infusion of PGF2alpha resulted in functional regression in 91% of cows supplemented with corn gluten meal, and only 46% for fish meal supplemented animals. Results demonstrate that fish meal supplementation alters luteal sensitivity to PGF2alpha, which may affect fertility. PMID- 29324979 TI - Under pressure? Epicormic shoots and traumatic growth zones in high-latitude Triassic trees from East Antarctica. AB - Background and Aims: Investigating the biology of trees that were growing at high latitudes during warmer geological periods is key to understanding the functioning of both past and future forest ecosystems. The aim of this study is to report the first co-occurrence of epicormic shoots and traumatic growth zones in fossil trees from the Triassic of Antarctica and to discuss their biological and environmental implications. Methods: Permineralized woods bearing scars of epicormic shoots were collected from the Triassic Fremouw Formation in Gordon Valley, Central Transantarctic Mountains, Antarctica in 2010. Samples from different portions of three specimens were prepared using standard thin section and hydrofluoric (HF) acid peel techniques, and anatomical details were studied in transmitted light. Key Results: The fossil woods represent the outer part of trunks, with at least 40 growth rings that are 0.2-4.8 mm in width. Anatomical comparisons suggest that they represent a new tree taxon for the Triassic of Antarctica. Numerous small epicormic shoots can be seen crossing the wood almost horizontally and are locally branched. Each specimen also contains several occurrences of traumatic growth zones located in the early wood, in the cells produced either at the very start of the growing season or slightly later. Conclusions: This is the first report of epicormic shoots and traumatic growth zones in the wood of a Triassic tree from Antarctica. Their co-occurrence indicates that these trees from Gordon Valley were subjected to environmental stresses not seen in Triassic trees previously described from this region. This suggests that they had a different biology and/or were growing in a different habitat, which offers a new glimpse into the diversity of high-latitude trees in the Triassic greenhouse climate. PMID- 29324980 TI - Traits determining the digestibility-decomposability relationships in species from Mediterranean rangelands. AB - Background and Aims: Forage quality for herbivores and litter quality for decomposers are two key plant properties affecting ecosystem carbon and nutrient cycling. Although there is a positive relationship between palatability and decomposition, very few studies have focused on larger vertebrate herbivores while considering links between the digestibility of living leaves and stems and the decomposability of litter and associated traits. The hypothesis tested is that some defences of living organs would reduce their digestibility and, as a consequence, their litter decomposability, through 'afterlife' effects. Additionally in high-fertility conditions the presence of intense herbivory would select for communities dominated by fast-growing plants, which are able to compensate for tissue loss by herbivory, producing both highly digestible organs and easily decomposable litter. Methods: Relationships between dry matter digestibility and decomposability were quantified in 16 dominant species from Mediterranean rangelands, which are subject to management regimes that differ in grazing intensity and fertilization. The digestibility and decomposability of leaves and stems were estimated at peak standing biomass, in plots that were either fertilized and intensively grazed or unfertilized and moderately grazed. Several traits were measured on living and senesced organs: fibre content, dry matter content and nitrogen, phosphorus and tannin concentrations. Key results: Digestibility was positively related to decomposability, both properties being influenced in the same direction by management regime, organ and growth forms. Digestibility of leaves and stems was negatively related to their fibre concentrations, and positively related to their nitrogen concentration. Decomposability was more strongly related to traits measured on living organs than on litter. Digestibility and decomposition were governed by similar structural traits, in particular fibre concentration, affecting both herbivores and micro-organisms through the afterlife effects. Conclusions: This study contributes to a better understanding of the interspecific relationships between forage quality and litter decomposition in leaves and stems and demonstrates the key role these traits play in the link between plant and soil via herbivory and decomposition. Fibre concentration and dry matter content can be considered as good predictors of both digestibility and decomposability. PMID- 29324982 TI - Cardiovascular protection by Nox4. PMID- 29324981 TI - Outcome in colorectal cancer-tumour, stroma and so much more. PMID- 29324983 TI - Pulsatile Hemodynamics Are Associated With Exercise Capacity in Patients With Exertional Dyspnea and Preserved Left Ventricular Ejection Fraction. AB - BACKGROUND: Pulsatile hemodynamics are associated with left ventricular filling pressures and diastolic dysfunction. We investigated their relationship with maximum workload and peak oxygen uptake (peak VO2) in patients with exertional dyspnea and preserved left ventricular ejection fraction (LVEF). METHODS: Radial waveforms from tonometry were processed with a transfer function, pulse wave analysis and wave separation analysis, yielding central aortic pressures and measures of forward (amplitude of forward wave-Pf) and reflected waves (augmentation index-AIx, augmentation pressure-AP, amplitude of backward wave-Pb) and their ratio (reflection magnitude). Aortic pulse wave velocity (aoPWV) was estimated with a validated formula from single-point waveforms. Ergospirometry for assessment of exercise capacity was performed on a bicycle ergometer, using a ramp protocol. RESULTS: Sixty-six patients were included (43 females; mean age 66 years; 83% hypertensives; mean body mass index 28.3 kg/m2). Mean peak VO2 was 17.0 ml/min/kg, mean achieved maximum workload 104.5 watts (80.9% of a reference population). Maximum workload and peak VO2 showed significant inverse relationships with AIx, AP, Pb, and aoPWV (r = -0.26 to -0.57). In multiple adjusted regression models, brachial and aortic pulse pressure, AP, Pf, Pb, and aoPWV were significant independent predictors of maximum workload, whereas AP, AIx75, Pf, Pb, and aoPWV were independently related to peak VO2. CONCLUSIONS: Pulsatile hemodynamics are independently associated with objective measures of exercise capacity in patients with normal LVEF. PMID- 29324984 TI - Deoxycorticosterone acetate-salt hypertension activates placental growth factor in the spleen to couple sympathetic drive and immune system activation. AB - Aims: Chronic increase of mineralocorticoids obtained by administration of deoxycorticosterone acetate (DOCA) results in salt-dependent hypertension in animals. Despite the lack of a generalized sympathoexcitation, DOCA-salt hypertension has been also associated to overdrive of peripheral nervous system in organs typically targeted by blood pressure (BP), as kidneys and vasculature. Aim of this study was to explore whether DOCA-salt recruits immune system by overactivating sympathetic nervous system in lymphoid organs and whether this is relevant for hypertension. Methods and results: To evaluate the role of the neurosplenic sympathetic drive in DOCA-salt hypertension, we challenged splenectomized mice or mice with left coeliac ganglionectomy with DOCA-salt, observing that they were both unable to increase BP. Then, we evaluated by immunofluorescence and ELISA levels of the placental growth factor (PlGF) upon DOCA-salt challenge, which significantly increased the growth factor expression, but only in the presence of an intact neurosplenic sympathetic drive. When PlGF KO mice were subjected to DOCA-salt, they were significantly protected from the increased BP observed in WT mice under same experimental conditions. In addition, absence of PlGF hampered DOCA-salt mediated T cells co-stimulation and their consequent deployment towards kidneys where they infiltrated tissue and provoked end-organ damage. Conclusion: Overall, our study demonstrates that DOCA-salt requires an intact sympathetic drive to the spleen for priming of immunity and consequent BP increase. The coupling of nervous system and immune cells activation in the splenic marginal zone is established through a sympathetic mediated PlGF release, suggesting that this pathway could be a valid therapeutic target for hypertension. PMID- 29324985 TI - Urine Tuberculosis Lipoarabinomannan Predicts Mortality in Hospitalized Human Immunodeficiency Virus-Infected Children. AB - Clinical Trials Registration: NCT02063880. PMID- 29324986 TI - The Impact of the 13-Valent Pneumococcal Conjugate Vaccine on Pneumococcal Carriage in the Community Acquired Pneumonia Immunization Trial in Adults (CAPiTA) Study. AB - Background: The impact of pneumococcal conjugate vaccination on the prevalence of nasopharyngeal carriage with pneumococci and other bacteria in adults is unknown. The direct effects of the 13-valent pneumococcal conjugate vaccine (PCV13) in community dwelling older adults was investigated as part of the randomized controlled Community Acquired Pneumonia immunization Trial in Adults (CAPiTA). Methods: We determined the carriage of Streptococcus pneumoniae, Staphylococcus aureus, Haemophilus influenzae, and Moraxella catarrhalis before and 6, 12, and 24 months after vaccination using polymerase chain reaction (PCR)-based methods and conventional cultures of nasopharyngeal and oropharyngeal swab samples in 1006 PCV13 recipients and 1005 controls. Serotyping of the 13 vaccine-type (VT) pneumococci was performed by PCR targeting capsular synthesis genes and Quellung reaction of isolates. Results: Before randomization and based on PCR, 339 of 1891 subjects had nasopharyngeal carriage with any pneumococci (17.9%), and 114 of 1891 (6.0%) carried VT pneumococci. At 6 months after vaccination, VT pneumococcal carriage was significantly lower in PCV13 recipients than in the placebo group (relative risk, 0.53; 95% confidence interval, .35-.80; P = .04). There was no difference between the groups at 12 and 24 months after vaccination. Carriage of non-VT pneumococci, S. aureus, H. influenzae, and M. catarrhalis did not change between groups. Conclusions: In community-dwelling adults aged >=65 years, a single dose of PCV13 seems to elicit a small and temporary reduction in VT carriage 6 months after vaccination. Neither replacement by non-VT serotypes nor impact on other nasopharyngeal bacteria was observed. PMID- 29324987 TI - The Argument Against Testing for INSTI Resistance in Treatment Naive Patients. PMID- 29324988 TI - Evidence for verbal memory enhancement with electrical brain stimulation in the lateral temporal cortex. AB - Direct electrical stimulation of the human brain can elicit sensory and motor perceptions as well as recall of memories. Stimulating higher order association areas of the lateral temporal cortex in particular was reported to activate visual and auditory memory representations of past experiences (Penfield and Perot, 1963). We hypothesized that this effect could be used to modulate memory processing. Recent attempts at memory enhancement in the human brain have been focused on the hippocampus and other mesial temporal lobe structures, with a few reports of memory improvement in small studies of individual brain regions. Here, we investigated the effect of stimulation in four brain regions known to support declarative memory: hippocampus, parahippocampal neocortex, prefrontal cortex and temporal cortex. Intracranial electrode recordings with stimulation were used to assess verbal memory performance in a group of 22 patients (nine males). We show enhanced performance with electrical stimulation in the lateral temporal cortex (paired t-test, P = 0.0067), but not in the other brain regions tested. This selective enhancement was observed both on the group level, and for two of the four individual subjects stimulated in the temporal cortex. This study shows that electrical stimulation in specific brain areas can enhance verbal memory performance in humans.awx373media15704855796001. PMID- 29324990 TI - Weight gain after smoking cessation does not modify its protective effect on myocardial infarction and stroke: evidence from a cohort study of men. AB - Aims: This study aimed to investigate the association between smoking cessation, post-cessation body mass index (BMI) change and risk of myocardial infarction (MI) and stroke in men. Methods and results: A prospective cohort study using the National Health Insurance Service (NHIS) data set collected from 2002 to 2013 was implemented. Based on the first (2002-03) and second (2004-05) NHIS health check up periods, 108 242 men aged over 40 years without previous diagnoses of MI or stroke were grouped into sustained smokers, quitters with BMI gain, quitters without BMI change, quitters with BMI loss, and non-smokers. Body mass index change was defined as the difference of more than 1.0 kg/m2 between the two health check-up periods. The participants were followed-up from 1 January 2006 to 31 December 2013. Hazard ratios (HRs) and 95% confidence intervals (HR, 95% CI) were computed using Cox proportional hazard models adjusted for sociodemographic, health status, and family health history. Compared to the sustained smokers, the risk of MI and stroke was significantly reduced in both quitters with BMI gain (HR 0.33; 95% CI 0.16-0.70 for MI and HR 0.75; 95% CI 0.57-1.00 for stroke) and without BMI change (HR 0.55; 95% CI 0.37-0.83 for MI and HR 0.75; 95% CI 0.62 0.92 for stroke), but no significant association was found in quitters with BMI loss (HR 0.91; 95% CI 0.43-1.91 for MI and HR 0.86; 95% CI 0.57-1.31 for stroke), respectively. Non-smokers had lower risk of MI (HR 0.37; 95% CI 0.32-0.43) and stroke (HR 0.68; 95% CI 0.64-0.73) compared to the sustained smokers. Conclusion: Post-cessation BMI change did not significantly modify the protective association of smoking cessation with MI and stroke. PMID- 29324991 TI - ORBITA revisited: what it really means and what it does not? PMID- 29324989 TI - Synaptic markers of cognitive decline in neurodegenerative diseases: a proteomic approach. AB - See Attems and Jellinger (doi:10.1093/brain/awx360) for a scientific commentary on this article.Cognitive changes occurring throughout the pathogenesis of neurodegenerative diseases are directly linked to synaptic loss. We used in-depth proteomics to compare 32 post-mortem human brains in the prefrontal cortex of prospectively followed patients with Alzheimer's disease, Parkinson's disease with dementia, dementia with Lewy bodies and older adults without dementia. In total, we identified 10 325 proteins, 851 of which were synaptic proteins. Levels of 25 synaptic proteins were significantly altered in the various dementia groups. Significant loss of SNAP47, GAP43, SYBU (syntabulin), LRFN2, SV2C, SYT2 (synaptotagmin 2), GRIA3 and GRIA4 were further validated on a larger cohort comprised of 92 brain samples using ELISA or western blot. Cognitive impairment before death and rate of cognitive decline significantly correlated with loss of SNAP47, SYBU, LRFN2, SV2C and GRIA3 proteins. Besides differentiating Parkinson's disease dementia, dementia with Lewy bodies, and Alzheimer's disease from controls with high sensitivity and specificity, synaptic proteins also reliably discriminated Parkinson's disease dementia from Alzheimer's disease patients. Our results suggest that these particular synaptic proteins have an important predictive and discriminative molecular fingerprint in neurodegenerative diseases and could be a potential target for early disease intervention. PMID- 29324992 TI - Increasing and declining native species in urban remnant grasslands respond differently to nitrogen addition and disturbance. AB - Background and Aims: Atmospheric nitrogen deposition and natural fire regime suppression are key drivers of vegetation change in urbanizing grasslands. Some species thrive under these conditions, while others face local extinction. In the natural grasslands that surround Melbourne, Australia, biotic homogenization has occurred with intensifying urbanization. Some native species have become rarer (decreaser species) across the landscape, while others have become more widespread (increaser species). This study experimentally examined the response of increaser and decreaser plant species to nitrogen addition/depletion, and examined the presence/absence of annual disturbance to the vegetation. Methods: Decreaser and increaser species were planted into 60 field plots established in an urban Melbourne grassland and examined over 2 years. Annual removal of above ground biomass occurred in half the plots to simulate biomass removal via fire, with the remaining plots undisturbed. Soil nitrogen was depleted in one-third of plots, one-third received no nitrogen treatment and one-third were fertilized with nitrogen. Increaser plant species were predicted to persist in the absence of disturbance, and thrive when fertilized. In contrast, high mortality was predicted for decreaser species in the absence of disturbance, with fertilization providing no advantage. Key Results: Seedling mortality for increaser and decreaser species was unrelated to the treatments. The mortality of decreaser species was high (69 %), and the mortality of increaser species low (20 %). However, seedling growth was related to the treatments. The total biomass of decreaser species was highest in annually disturbed plots, with growth suppressed in undisturbed plots. In contrast, the total biomass of increaser species was unrelated to the disturbance regime, but responded positively to nitrogen enrichment. Conclusions: The results provide evidence that by affecting plant growth, declines in biomass removal and atmospheric nitrogen deposition could be key drivers of biotic homogenization in urban grasslands. PMID- 29324993 TI - The Pros and Cons of the PROs. PMID- 29324994 TI - Achieving Viral Suppression in 90% of People Living With Human Immunodeficiency Virus on Antiretroviral Therapy in Low- and Middle-Income Countries: Progress, Challenges, and Opportunities. AB - Although significant progress has been made, the latest data from low- and middle income countries show substantial gaps in reaching the third "90%" (viral suppression) of the UNAIDS 90-90-90 goals, especially among vulnerable and key populations. This article discusses critical gaps and promising, evidence-based solutions. There is no simple and/or single approach to achieve the last 90%. This will require multifaceted, scalable strategies that engage people living with human immunodeficiency virus, motivate long-term treatment adherence, and are community-entrenched and -supported, cost-effective, and tailored to a wide range of global communities. PMID- 29324995 TI - PD-1 blockade with nivolumab in endemic Kaposi sarcoma. PMID- 29324996 TI - Laboratory-Confirmed Respiratory Infections as Predictors of Hospital Admission for Myocardial Infarction and Stroke: Time-Series Analysis of English Data for 2004-2015. AB - Background: Acute respiratory infections are associated with increased risk of myocardial infarction (MI) and stroke; however, the role of different organisms is poorly characterized. Methods: Time-series analysis of English hospital admissions for MI and stroke (age-stratified: 45-64, 65-74, >=75 years), laboratory-confirmed viral respiratory infections, and environmental data for 2004-2015. Weekly counts of admissions were modeled using multivariable Poisson regression with weekly counts of respiratory viruses (influenza, parainfluenza, rhinovirus, respiratory syncytial virus [RSV], adenovirus, or human metapneumovirus [HMPV]) investigated as predictors. We controlled for seasonality, long-term trends, and environmental factors. Results: Weekly hospital admissions in adults aged >=45 years averaged 1347 (interquartile range [IQR], 1217-1541) for MI and 1175 (IQR, 1023-1395) for stroke. Respiratory infections ranged from 11 cases per week (IQR, 5-53) for influenza to 55 (IQR, 7 127) for rhinovirus. In the adjusted models, all viruses except parainfluenza were significantly associated with MI and ischemic stroke admissions in those aged >=75. Among 65- to 74-year-olds, adenovirus, rhinovirus, and RSV were associated with MI but not ischemic stroke admissions. Respiratory infections were not associated with MI or ischemic stroke in people aged 45-64 years, nor with hemorrhagic stroke in any age group. An estimated 0.4%-5.7% of MI and ischemic stroke admissions may be attributable to respiratory infection. Conclusions: We identified small but strongly significant associations in the timing of respiratory infection (with HMPV, RSV, influenza, rhinovirus, and adenovirus) and MI or ischemic stroke hospitalizations in the elderly. Clinical Trials Registration: NCT02984280. PMID- 29324999 TI - Changing definition of hypertension in guidelines: how innocent a number game? PMID- 29324998 TI - Introducing turgor-driven growth dynamics into functional-structural plant models. AB - Background and Aims: In many scenarios the availability of assimilated carbon is not the constraining factor of plant growth. Rather, organ growth appears driven by sink activity in which water availability plays a determinant role. Current functional-structural plant models (FSPMs) mainly focus on plant-carbon relations and largely disregard the importance of plant water status in organogenesis. Consequently, incorporating a turgor-driven growth concept, coupling carbon and water dynamics in an FSPM, presents a significant improvement towards capturing plant development in a more mechanistic manner. Methods: An existing process based water flow and storage model served as a basis for implementing water control in FSPMs. Its concepts were adjusted to the scale of individual plant organs and interwoven with the basic principles of modelling carbon dynamics to allow evaluation of turgor pressure across the entire plant. This was then linked to plant organ growth by applying the principles of the widely used Lockhart equation. Key results: This model successfully integrates a mechanistic understanding of plant water transport dynamics coupled with simple carbon dynamics within a dynamically developing plant architecture. It allows evaluation of turgor pressure on the scale of plant organs, resulting in clear diel and long term patterns, directly linked to plant organ growth. Conclusions: A conceptual sap flow and turgor-driven growth model was introduced for functional-structural plant modelling. It is applicable to any plant architecture and allows visual exploration of the diel patterns of organ water content and growth. Integrated in existing FSPMs, this new concept fosters an array of possibilities for FSPMs, as it presents a different formulation of growth in terms of local processes, influenced by local and external conditions. PMID- 29324997 TI - Skin lighteners and hair relaxers as risk factors for breast cancer: results from the Ghana breast health study. AB - Skin lighteners and hair relaxers, both common among women of African descent, have been suggested as possibly affecting breast cancer risk. In Accra and Kumasi, Ghana, we collected detailed information on usage patterns of both exposures among 1131 invasive breast cancer cases and 2106 population controls. Multivariate analyses estimated odds ratios (ORs) and 95% confidence intervals (CIs) after adjustment for breast cancer risk factors. Control usage was 25.8% for ever use of skin lighteners and 90.0% for use of hair relaxers for >1 year. The OR for skin lighteners was 1.10 (95% CI 0.93-1.32), with higher risks for former (1.21, 0.98-1.50) than current (0.96, 0.74-1.24) users. No significant dose-response relations were seen by duration, age at first use or frequency of use. In contrast, an OR of 1.58 (95% CI 1.15-2.18) was associated with use of hair relaxers, with higher risks for former (2.22, 1.56-3.16) than current (1.39, 1.00-1.93) users. Although numbers of burns were inconsistently related to risk, associations increased with duration of use, restricted to women who predominately used non-lye products (P for trend < 0.01). This was most pronounced among women with few children and those with smaller tumors, suggesting a possible role for other unmeasured lifestyle factors. This study does not implicate a substantial role for skin lighteners as breast cancer risk factors, but the findings regarding hair relaxers were less reassuring. The effects of skin lighteners and hair relaxers on breast cancer should continue to be monitored, especially given some biologic plausibility for their affecting risk. PMID- 29325000 TI - Alcohol, tobacco and health care costs: a population-wide cohort study (n = 606 947 patients) of current drinkers based on medical and administrative health records from Catalonia. AB - Background: Most cost of illness studies are based on models where information on exposure is combined with risk information from meta-analyses, and the resulting attributable fractions are applied to the number of cases. Methods: This study presents data on alcohol and tobacco use for 2011 and 2012 obtained from a routine medical practice in Catalonia of 606 947 patients, 18 years of age and older, as compared with health care costs for 2013 (all costs from the public health care system: primary health care visits, hospital admissions, laboratory and medical tests, outpatient visits to specialists, emergency department visits and pharmacy expenses). Quasi-Poisson regressions were used to assess the association between alcohol consumption and smoking status and health care costs (adjusted for age and socio-economic status). Results: Resulting health care costs per person per year amounted to 1290 Euros in 2013, and were 20.1% higher for men than for women. Sex, alcohol consumption, tobacco use and socio-economic status were all associated with health care costs. In particular, alcohol consumption had a positive dose-response association with health care costs. Similarly, both smokers and former smokers had higher health care costs than did people who never smoked. Conclusions: Alcohol and tobacco use had modest and large impacts respectively on health care costs, confirming the results of previous ecological modelling analyses. Reductions of alcohol consumption and smoking through public policies and via early identification and brief interventions would likely be associated with reductions in health care costs. PMID- 29325001 TI - Hydrogen peroxide acts downstream of melatonin to induce lateral root formation. AB - Background and Aims: Although several studies have confirmed the beneficial roles of exogenous melatonin in lateral root (LR) formation, the molecular mechanism is still elusive. Here, the role of hydrogen peroxide (H2O2) in the induction of LR formation triggered by melatonin was investigated. Methods: Alfalfa (Medicago sativa 'Biaogan') and transgenic Arabidopsis seedlings were treated with or without melatonin, diphenyleneiodonium (DPI, NADPH oxidase inhibitor), N,N' dimethylthiourea (DMTU, H2O2 scavenger), alone or combined. Then, H2O2 content was determined with 2',7'-dichlorofluorescein diacetate (H2DCFDA)-dependent fluorescence and spectrophotography. Transcript levels of cell cycle regulatory genes were analysed by real-time reverse transcription-PCR. Key Results: Application of exogenous melatonin not only increased endogenous H2O2 content but also induced LR formation in alfalfa seedlings. Consistently, melatonin-induced LR primordia exhibited an accelerated response. These inducible responses were significantly blocked when DPI or DMTU was applied. Compared with the wild-type, transgenic Arabidopsis plants overexpressing alfalfa MsSNAT (a melatonin synthesis gene) increased H2O2 accumulation and thereafter LR formation, both of which were blocked by DPI or DMTU. Similarly, melatonin-modulated expression of marker genes responsible for LR formation, including MsCDKB1;1, MsCDKB2;1, AtCDKB1;1 and AtCDKB2;1, was obviously impaired by the removal of H2O2 in both alfalfa and transgenic Arabidopsis plants. Conclusions: Pharmacological and genetic evidence revealed that endogenous melatonin-triggered LR formation was H2O2-dependent. PMID- 29325003 TI - Reversible colour change in leaves enhances pollinator attraction and reproductive success in Saururus chinensis (Saururaceae). AB - Background and Aims: Although there has been much experimental work on leaf colour change associated with selection generated by abiotic environmental factors and antagonists, the role of leaf colour change in pollinator attraction has been largely ignored. We tested whether whitening of the apical leaves subtending the inflorescences of Saururus chinensis during flowering enhances pollinator attraction, and whether re-greening of the white leaves after flowering increases carbon assimilation and promotes seed development. Methods: White leaves were removed or covered, and the effects of these manipulations on pollinator visitation and subsequent reproductive success were assessed. The net photosynthetic rates of leaves of different colour were measured and their photosynthetic contributions to seed development were evaluated. Key Results: Saururus chinensis is able to self-pollinate autonomously, but depends largely on flies for pollination. White leaves had different reflectance spectra from green leaves, and white leaves attracted significantly more pollinators and led to significantly higher fruit and seed set. Although leaf whitening resulted in a reduction in photosynthetic capacity, it translated into only a small decrease in seed mass. When leaves had turned back from white to green after flowering their photosynthetic capacity was similar to that of 'normal' green leaves and promoted seed development. Conclusions: The reversible leaf colour change in S. chinensis appears to be adaptive because it enhances pollination success during flowering, with a small photosynthetic cost, while re-greening of these leaves after flowering helps to meet the carbon requirements for seed development. PMID- 29325005 TI - Corrigendum to: The Population Health Research Institute. PMID- 29325002 TI - Traits and trade-offs in whole-tree hydraulic architecture along the vertical axis of Eucalyptus grandis. AB - Background and Aims: Sapwood traits like vessel diameter and intervessel pit characteristics play key roles in maintaining hydraulic integrity of trees. Surprisingly little is known about how sapwood traits covary with tree height and how such trait-based variation could affect the efficiency of water transport in tall trees. This study presents a detailed analysis of structural and functional traits along the vertical axes of tall Eucalyptus grandis trees. Methods: To assess a wide range of anatomical and physiological traits, light and electron microscopy was used, as well as field measurements of tree architecture, water use, stem water potential and leaf area distribution. Key Results: Strong apical dominance of water transport resulted in increased volumetric water supply per unit leaf area with tree height. This was realized by continued narrowing (from 250 to 20 um) and an exponential increase in frequency (from 600 to 13 000 cm-2) of vessels towards the apex. The widest vessels were detected at least 4 m above the stem base, where they were associated with the thickest intervessel pit membranes. In addition, this study established the lower limit of pit membrane thickness in tall E. grandis at ~375 nm. This minimum thickness was maintained over a large distance in the upper stem, where vessel diameters continued to narrow. Conclusions: The analyses of xylem ultrastructure revealed complex, synchronized trait covariation and trade-offs with increasing height in E. grandis. Anatomical traits related to xylem vessels and those related to architecture of pit membranes were found to increase efficiency and apical dominance of water transport. This study underlines the importance of studying tree hydraulic functioning at organismal scale. Results presented here will improve understanding height-dependent structure-function patterns in tall trees. PMID- 29325004 TI - Association between physical exercise and psychosocial problems in 96 617 Dutch adolescents in secondary education: a cross-sectional study. AB - Background: Psychosocial problems negatively affect school performance, social skills and mental development. In recent years, researchers have investigated the relationship between physical activity and psychological health. With this large school-based study, we examined whether physically inactive adolescents and slightly active adolescents experience more psychosocial problems compared with active adolescents. Methods: This study is based on the Dutch National Youth Health Monitor. This monitor uses a, school-based, cross-sectional questionnaire conducted among 96 617 adolescents in 2015. To examine the association between physical exercise and psychosocial problems, multi-level linear regression was carried out. Results: The weighted average Strengths and Difficulties Questionnaire score of active adolescents was lower than that of inactive adolescents. Adolescents who are inactive had 12% (beta = 1.12; 95% CI: 1.10 1.14; P <0 .001) more psychosocial problems compared with active adolescents. Further, inactive adolescents had a higher score on the subscales emotional problems (beta = 1.19; 95% CI: 1.17-1.22; P < 0.001) and problems with peers (beta = 1.16; 95% CI: 1.14-1.19; P < 0.001). There was no statistical significant difference in total score of the Strengths and Difficulties Questionnaire between active and slightly active adolescents. Conclusion: Physically active adolescents have fewer psychosocial problems compared with physically inactive adolescents. Not only is this association significant, but there is an indication that it is also of clinical relevance. PMID- 29325006 TI - Emergency cardiac surgery following TAVI: implications for the future. PMID- 29325007 TI - Rifampicin treatment of Blattella germanica evidences a fecal transmission route of their gut microbiota. AB - Eukaryotes have established symbiotic relationship with microorganisms, which enables them to accomplish functions that they cannot perform alone. In the German cockroach, Blattella germanica, the obligate endosymbiont Blattabacterium coexists with a rich gut microbiota. The transmission of Blattabacterium is vertical, but little is known about how the gut microbiota colonizes newborn individuals. In this study, we treated B. germanica populations with rifampicin, a broad-spectrum antibiotic, during two generations and analyzed gut bacterial composition and the Blattabacterium load in control and rifampicin-treated populations. Rifampicin exerted a drastic effect on gut microbiota composition, which recovered in the second generation in the case where the antibiotic was not added to the diet. Furthermore, we observed that bacterial species present in the diet, and particularly in the feces, contribute significantly to establishing the gut microbiota. Finally, the Blattabacterium population remained unaffected by the antibiotic treatment of adults during the first generation but was strongly reduced in the second generation, suggesting that this intracellular symbiont is sensitive to rifampicin only during the infection of the mature oocytes, when it is in an extracellular stage. PMID- 29325008 TI - Mineralized trichomes in Boraginales: complex microscale heterogeneity and simple phylogenetic patterns. AB - Background and Aims: Boraginales are often characterized by a dense cover of stiff, mineralized trichomes, which may act as a first line of defence against herbivores. Recent studies have demonstrated that the widely reported silica and calcium carbonate in plant trichomes may be replaced by calcium phosphate. The present study investigates mineralization patterns in 42 species from nine families of the order Boraginales to investigate detailed patterns of mineralization and the possible presence of a phylogenetic signal in different mineralization patterns. Methods: The distribution of biominerals was analysed by scanning electron microscopy (SEM) including cryo-SEM and energy-dispersive X-ray analyses with element mapping. The observed distribution of biominerals was plotted onto a published phylogeny of the Boraginales. Three colours were selected to represent the principal elements: Si (red), Ca (green) and P (blue). Key Results: Calcium carbonate was present in the mineralized trichomes of all 42 species investigated, silica in 30 and calcium phosphate in 25; multiple mineralization with calcium carbonate and silica or calcium phosphate was found in all species, and 13 of the species were mineralized with all three biominerals. Trichome tips featured the most regular pattern - nearly all were exclusively mineralized with either silica or calcium phosphate. Biomineralization of the trichome shafts and bases was found to be more variable between species. However, the trichome bases were also frequently mineralized with calcium phosphate or silica, indicating that not only the tip is under functional constraints requiring specific patterns of chemical heterogeneity. The complete absence of either silica or phosphate may be an additional feature with systematic relevance. Conclusions: This study demonstrates that complex, site specific and differential biomineralization is widespread across the order Boraginales. Calcium phosphate, only recently first reported as a structural plant biomineral, is common and appears to be functionally analogous to silica. A comparison with the phylogeny of Boraginales additionally reveals striking phylogenetic patterns. Most families show characteristic patterns of biomineralization, such as the virtual absence of calcium phosphate in Cordiaceae and Boraginaceae, the triple biomineralization of Heliotropiaceae and Ehretiaceae, or the absence of silica in Namaceae and Codonaceae. The complex chemical and phylogenetic patterns indicate that trichome evolution and functionalities are anything but simple and follow complex functional and phylogenetic constraints. PMID- 29325009 TI - Efficient generation of complete sequences of MDR-encoding plasmids by rapid assembly of MinION barcoding sequencing data. AB - Background: Multidrug resistance (MDR)-encoding plasmids are considered major molecular vehicles responsible for transmission of antibiotic resistance genes among bacteria of the same or different species. Delineating the complete sequences of such plasmids could provide valuable insight into the evolution and transmission mechanisms underlying bacterial antibiotic resistance development. However, due to the presence of multiple repeats of mobile elements, complete sequencing of MDR plasmids remains technically complicated, expensive, and time consuming. Results: Here, we demonstrate a rapid and efficient approach to obtaining multiple MDR plasmid sequences through the use of the MinION nanopore sequencing platform, which is incorporated in a portable device. By assembling the long sequencing reads generated by a single MinION run according to a rapid barcoding sequencing protocol, we obtained the complete sequences of 20 plasmids harbored by multiple bacterial strains. Importantly, single long reads covering a plasmid end-to-end were recorded, indicating that de novo assembly may be unnecessary if the single reads exhibit high accuracy. Conclusions: This workflow represents a convenient and cost-effective approach for systematic assessment of MDR plasmids responsible for treatment failure of bacterial infections, offering the opportunity to perform detailed molecular epidemiological studies to probe the evolutionary and transmission mechanisms of MDR-encoding elements. PMID- 29325010 TI - Incomplete Co-cladogenesis Between Zootermopsis Termites and Their Associated Protists. AB - Coevolution is a major driver of speciation in many host-associated symbionts. In the termite-protist digestive symbiosis, the protists are vertically inherited by anal feeding among nest mates. Lower termites (all termite families except Termitidae) and their symbionts have broadly co-diversified over ~170 million yr. However, this inference is based mainly on the restricted distribution of certain protist genera to certain termite families. With the exception of one study, which demonstrated congruent phylogenies for the protist Pseudotrichonympha and its Rhinotermitidae hosts, coevolution in this symbiosis has not been investigated with molecular methods. Here we have characterized the hindgut symbiotic protists (Phylum Parabasalia) across the genus Zootermopsis (Archotermopsidae) using single cell isolation, molecular phylogenetics, and high throughput amplicon sequencing. We report that the deepest divergence in the Zootermopsis phylogeny (Zootermopsis laticeps [Banks; Isoptera: Termopsidae]) corresponds with a divergence in three of the hindgut protist species. However, the crown Zootermopsis taxa (Zootermopsis angusticollis [Hagen; Isoptera: Termopsidae], Z. nevadensis nevadensis [Hagen; Isoptera: Termopsidae], and Z. nevadensis nuttingi [Haverty & Thorne; Isoptera: Termopsidae]) share the same protist species, with no evidence of co-speciation under our methods. We interpret this pattern as incomplete co-cladogenesis, though the possibility of symbiont exchange cannot be entirely ruled out. This is the first molecular evidence that identical communities of termite-associated protist species can inhabit multiple distinct host species. PMID- 29325011 TI - Cognitive Complaints in Memory Clinic Patients and in Depressive Patients: An Interpretative Phenomenological Analysis. AB - Background and Objectives: Cognitive complaints are discussed as early signs of Alzheimer's disease (AD). However, they are also very common in cognitively normal older adults and in patients with depression. Qualitative, interview-based approaches might be useful to identify those features of cognitive complaints specific for the experiences of cognitive decline in preclinical or prodromal AD versus those complaints typically reported by depressed patients. Research Design and Methods: A semi-structured interview was administered to 21 cognitively normal older adults (HC), 18 nondemented memory clinic patients (MC), and 11 patients with a major depression (MD), all above 55 years. Interpretative phenomenological analysis (IPA) was applied to the interview transcripts to develop emerging complaint themes in each group. To identify thematic correspondence and possibly novel, hitherto unappreciated themes, the extracted complaint categories were compared with the neurocognitive domains in the DSM-5 and the content of the Everyday Cognition questionnaire (E-Cog). Results: IPA yielded 18 cognitive complaint categories in MC, 10 in depressive patients, and 10 categories in the HC group. Several themes were common across groups, but some were group-specific, for example, spatial disorientation was only reported in MC patients. Some of these MC-specific themes were neither represented by DSM-5 domains nor by the E-Cog. Discussion and Implications: We report a comprehensive qualitative description of cognitive complaints in old age which could help to develop questionnaires or structured interviews to better assess AD-related subjective cognitive decline. This may help to increase specificity in selecting high-risk subjects in research settings and improve clinical judgment of diverse cognitive complaints types mentioned by their patients. PMID- 29325012 TI - Systematic review of the cost-effectiveness of transcatheter interventions for valvular heart disease. AB - Transcatheter aortic valve implantation (TAVI) and transcatheter mitral valve repair (TMVR) are increasingly used for managing patients with valvular heart disease to whom surgery presents a high-risk. As these are costly procedures, a systematic review of studies concerned with their economic assessment was undertaken. The search was performed in PubMed and the Cochrane Library and followed recommended methodological steps. Studies were screened and their data were retrieved and were synthesized using a narrative approach. Twenty-four, good to high quality, evaluations were identified, representing different viewpoints, modelling techniques and willingness-to-pay thresholds. Studies show that in high risk patients with symptomatic aortic stenosis, TAVI may be cost-effective compared with medical management (MM) across many health care settings. In contrast, studies of TAVI compared with surgical aortic valve replacement (SAVR) yield conflicting and inconclusive results. The limited data available show that TMVR may also be cost-effective relative to MM in mitral valve disease. Existing evidence indicates that transcatheter techniques may be cost-effective options, relative to MM, in high-risk patients with valvular disease. Nonetheless, more research is needed to establish their economic value further, to investigate the drives of cost-effectiveness, and to evaluate surgical with transcatheter techniques in aortic valvular disease. PMID- 29325013 TI - Effects of Task Demands on Olfactory, Auditory, and Visual Event-Related Potentials Suggest Similar Top-Down Modulation Across Senses. AB - A widely held view is that top-down modulation of sensory information relies on an amodal control network that acts through the thalamus to regulate incoming signals. Olfaction lacks a direct thalamic projection, which suggests that it may differ from other modalities in this regard. We investigated the late positive complex (LPC) amplitudes of event-related potentials (ERP) from 28 participants, elicited by intensity-matched olfactory, auditory and visual stimuli, during a condition of focused attention, a neutral condition, and a condition in which stimuli were to be actively ignored. Amplitudes were largest during the attend condition, lowest during the ignore condition, with the neutral condition in between. A Bayesian analysis resulted in strong evidence for similar effects of task across sensory modalities. We conclude that olfaction, despite its unique neural projections, does not differ from audition and vision in terms of task dependent neural modulation of the LPC. PMID- 29325014 TI - CDKN1C (P57): one of the determinants of human endometrial stromal cell decidualization. AB - Decidualization is regulated by crosstalk of progesterone and the cAMP pathway. It involves extensive reprogramming of gene expression and includes a wide range of functions. To investigate how cell cycle regulatory genes drive the human endometrial stromal cell (ESC) exit cell cycle and enter differentiation, primary cultured ESC was treated with 8-Br-cAMP and MPA and cell cycle distribution was investigated by flow cytometry. High-throughput cell cycle regulatory gene expression was also studied by microarray. To validate the results of microarray chip, immunohistochemistry and semi-quantitative method of optical density were used to analyze the expression of cell cycle regulator proteins in proliferative phase of endometrium (n = 6) and early pregnancy decidua (n = 6). In addition, we selected cyclin-dependent kinase inhibitor 1c (CDKN1C, also known as P57) and cyclin-dependent kinase inhibitor 2b (CDKN2B, also known as P15) in order to study their role in the process of decidualization by the RNAi method. ESC was arrested at G0/G1 checkpoints during decidualization. Cell cycle regulatory genes P57 and P15 were upregulated, while cyclin D1 (CCND1), cyclin-dependent kinase 2 (CDK2), and cell division cycle protein 2 homolog (CDC2) were downregulated during ESC differentiation both in vitro and vivo. P57 siRNA impaired ESC decidualization and caused different morphological and ultrastructural changes as well as a relatively low secretion of prolactin, but P15 siRNA had no effects. We concluded that P15, CCND1, CDK2, and CDC2 may participate in ESC withdraw from the cell cycle and go into differentiation both in vitro and in vivo. P57 is one of the key determinants of ESC differentiation due to its effect on the cell cycle distribution, but its association with the decidua-specific transcription factor needs further investigation. PMID- 29325016 TI - Single-procedure cure with atrial fibrillation ablation: may the 'force' be with you. PMID- 29325015 TI - Ecological mechanisms underlying soil bacterial responses to rainfall along a steep natural precipitation gradient. AB - Changes in the structure and function of soil microbial communities can drive substantial ecosystem feedbacks to altered precipitation. However, the ecological mechanisms underlying community responses to environmental change are not well understood. We used an 18-month soil reciprocal transplant experiment along a steep precipitation gradient to quantify how changes in rainfall affected bacterial community structure. We also conducted an enhanced dispersal treatment to ask whether higher immigration rates of taxa from the surrounding environment would accelerate community responses to climate change. Finally, we addressed how the composition of soil bacteria communities was related to the functional response of soil respiration to moisture in these treatments. Bacterial community structure (OTU abundance) and function (respiration rates) changed little in response to manipulation of either rainfall environment or dispersal rates. Although most bacteria were ecological generalists, a subset of specialist taxa, over 40% of which were Actinobacteria, tended to be more abundant in the rainfall environment that matched their original conditions. Bacteria community composition was an important predictor of the respiration response to moisture. Thus, the high compositional resistance of microbial communities dictated respiration responses to altered rainfall in this system. PMID- 29325018 TI - Corrigendum to: Training the next generation of cardiovascular leaders in health policy and economics. PMID- 29325017 TI - Cell-type-resolved alternative splicing patterns in mouse liver. AB - Alternative splicing (AS) is an important post-transcriptional regulatory mechanism to generate transcription diversity. However, the functional roles of AS in multiple cell types from one organ have not been reported. Here, we provide the most comprehensive profile for cell-type-resolved AS patterns in mouse liver. A total of 13,637 AS events are detected, representing 81.5% of all known AS events in the database. About 46.2% of multi-exon genes undergo AS from the four cell types of mouse liver: hepatocyte, liver sinusoidal endothelial cell, Kupffer cell and hepatic stellate cell, which regulates cell-specific functions and maintains cell characteristics. We also present a cell-type-specific splicing factors network in these four cell types of mouse liver, allowing data mining and generating knowledge to elucidate the roles of splicing factors in sustaining the cell-type-specialized AS profiles and functions. The splicing switching of Tak1 gene between different cell types is firstly discovered and the specific Tak1 isoform regulates hepatic cell-type-specific functions is verified. Thus, our work constructs a hepatic cell-specific splicing landscape and reveals the considerable contribution of AS to the cell type constitution and organ features. PMID- 29325020 TI - Dynamic Effects of Initial pH of Substrate on Biological Growth and Metamorphosis of Black Soldier Fly (Diptera: Stratiomyidae). AB - Edible insects have become a recognized alternative and sustainable source of high-quality proteins and fats for livestock or human consumption. In the production process of black soldier fly (BSF), (Hermetia illucens L. [Diptera: Stratiomyidae]), initial substrate pH is a critical parameter to ensure the best value of insect biomass, life history traits, and quality bio-fertilizer. This study examined the impact of initial pH values on BSF larvae production, development time, and adult longevity. The BSF were reared on artificial diet with initial pH of 2.0, 4.0, 6.0, 8.0, and 10.0; the control was set at 7.0. Final BSF larval weight was significantly greater in substrates having initial pH 6.0 (0.21 g), control 7.0 (0.20 g), and 10.0 (0.20 g) with no significant difference among them, whereas larval weight reared with initial pH 2.0 and 4.0 were lowest at 0.16 g (-23%). Prepupal weight was greatest when larvae were reared on substrates with initial pH 6.0 (0.18 g), control 7.0 (0.19 g), 8.0 (0.18 g), and 10.0 (0.18 g). In contrast, the prepupal weight of larvae reared on diets with initial pH 2.0 was lowest at 0.15 g (-22%). Larval development time was 21.19 d at pH 8.0, about 3 d (12.5%) shorter than that of those reared on diets with initial pH 6.0, 7.0 control, and 10.0. In all treatments, pH shifted to 5.7 after 3-4 d and 8.5 after 16-17 d except for two groups (2.0 and 4.0) where the pH remained slightly acidic 5.0 and 6.5, respectively. PMID- 29325019 TI - Deep molecular phenotypes link complex disorders and physiological insult to CpG methylation. AB - Epigenetic regulation of cellular function provides a mechanism for rapid organismal adaptation to changes in health, lifestyle and environment. Associations of cytosine-guanine di-nucleotide (CpG) methylation with clinical endpoints that overlap with metabolic phenotypes suggest a regulatory role for these CpG sites in the body's response to disease or environmental stress. We previously identified 20 CpG sites in an epigenome-wide association study (EWAS) with metabolomics that were also associated in recent EWASs with diabetes-, obesity-, and smoking-related endpoints. To elucidate the molecular pathways that connect these potentially regulatory CpG sites to the associated disease or lifestyle factors, we conducted a multi-omics association study including 2474 mass-spectrometry-based metabolites in plasma, urine and saliva, 225 NMR-based lipid and metabolite measures in blood, 1124 blood-circulating proteins using aptamer technology, 113 plasma protein N-glycans and 60 IgG-glyans, using 359 samples from the multi-ethnic Qatar Metabolomics Study on Diabetes (QMDiab). We report 138 multi-omics associations at these CpG sites, including diabetes biomarkers at the diabetes-associated TXNIP locus, and smoking-specific metabolites and proteins at multiple smoking-associated loci, including AHRR. Mendelian randomization suggests a causal effect of metabolite levels on methylation of obesity-associated CpG sites, i.e. of glycerophospholipid PC(O-36: 5), glycine and a very low-density lipoprotein (VLDL-A) on the methylation of the obesity-associated CpG loci DHCR24, MYO5C and CPT1A, respectively. Taken together, our study suggests that multi-omics-associated CpG methylation can provide functional read-outs for the underlying regulatory response mechanisms to disease or environmental insults. PMID- 29325021 TI - Oligonucleotides targeting TCF4 triplet repeat expansion inhibit RNA foci and mis splicing in Fuchs' dystrophy. AB - Fuchs' endothelial corneal dystrophy (FECD) is the most common repeat expansion disorder. FECD impacts 4% of U.S. population and is the leading indication for corneal transplantation. Most cases are caused by an expanded intronic CUG tract in the TCF4 gene that forms nuclear foci, sequesters splicing factors and impairs splicing. We investigated the sense and antisense RNA landscape at the FECD gene and find that the sense-expanded repeat transcript is the predominant species in patient corneas. In patient tissue, sense foci number were negatively correlated with age and showed no correlation with sex. Each endothelial cell has ~2 sense foci and each foci is single RNA molecule. We designed antisense oligonucleotides (ASOs) to target the mutant-repetitive RNA and demonstrated potent inhibition of foci in patient-derived cells. Ex vivo treatment of FECD human corneas effectively inhibits foci and reverses pathological changes in splicing. FECD has the potential to be a model for treating many trinucleotide repeat diseases and targeting the TCF4 expansion with ASOs represents a promising therapeutic strategy to prevent and treat FECD. PMID- 29325022 TI - Large-scale exome datasets reveal a new class of adaptor-related protein complex 2 sigma subunit (AP2sigma) mutations, located at the interface with the AP2 alpha subunit, that impair calcium-sensing receptor signalling. AB - Mutations of the sigma subunit of the heterotetrameric adaptor-related protein complex 2 (AP2sigma) impair signalling of the calcium-sensing receptor (CaSR), and cause familial hypocalciuric hypercalcaemia type 3 (FHH3). To date, FHH3 associated AP2sigma mutations have only been identified at one residue, Arg15. We hypothesized that additional rare AP2sigma variants may also be associated with altered CaSR function and hypercalcaemia, and sought for these by analysing >111 995 exomes (>60 706 from ExAc and dbSNP, and 51 289 from the Geisinger Health System-Regeneron DiscovEHR dataset, which also contains clinical data). This identified 11 individuals to have 9 non-synonymous AP2sigma variants (Arg3His, Arg15His (x3), Ala44Thr, Phe52Tyr, Arg61His, Thr112Met, Met117Ile, Glu122Gly and Glu142Lys) with 3 of the 4 individuals who had Arg15His and Met117Ile AP2sigma variants having mild hypercalcaemia, thereby indicating a prevalence of FHH3 associated AP2sigma mutations of ~7.8 per 100 000 individuals. Structural modelling of the novel eight AP2sigma variants (Arg3His, Ala44Thr, Phe52Tyr, Arg61His, Thr112Met, Met117Ile, Glu122Gly and Glu142Lys) predicted that the Arg3His, Thr112Met, Glu122Gly and Glu142Lys AP2sigma variants would disrupt polar contacts within the AP2sigma subunit or affect the interface between the AP2sigma and AP2alpha subunits. Functional analyses of all eight AP2sigma variants in CaSR expressing cells demonstrated that the Thr112Met, Met117Ile and Glu142Lys variants, located in the AP2sigma alpha4-alpha5 helical region that forms an interface with AP2alpha, impaired CaSR-mediated intracellular calcium (Cai2+) signalling, consistent with a loss of function, and this was rectified by treatment with the CaSR positive allosteric modulator cinacalcet. Thus, our studies demonstrate another potential class of FHH3-causing AP2sigma mutations located at the AP2sigma-AP2alpha interface. PMID- 29325024 TI - Genetic variants influencing phenotypic variance heterogeneity. AB - Most genetic studies identify genetic variants associated with disease risk or with the mean value of a quantitative trait. More rarely, genetic variants associated with variance heterogeneity are considered. In this study, we have identified such variance single-nucleotide polymorphisms (vSNPs) and examined if these represent biological gene * gene or gene * environment interactions or statistical artifacts caused by multiple linked genetic variants influencing the same phenotype. We have performed a genome-wide study, to identify vSNPs associated with variance heterogeneity in DNA methylation levels. Genotype data from over 10 million single-nucleotide polymorphisms (SNPs), and DNA methylation levels at over 430 000 CpG sites, were analyzed in 729 individuals. We identified vSNPs for 7195 CpG sites (P < 9.4 * 10-11). This is a relatively low number compared to 52 335 CpG sites for which SNPs were associated with mean DNA methylation levels. We further showed that variance heterogeneity between genotypes mainly represents additional, often rare, SNPs in linkage disequilibrium (LD) with the respective vSNP and for some vSNPs, multiple low frequency variants co-segregating with one of the vSNP alleles. Therefore, our results suggest that variance heterogeneity of DNA methylation mainly represents phenotypic effects by multiple SNPs, rather than biological interactions. Such effects may also be important for interpreting variance heterogeneity of more complex clinical phenotypes. PMID- 29325026 TI - Failure of sternal wires depends on the number of turns and plastic deformation: combined experimental and computational approach. AB - OBJECTIVES: The number of turns at the end of a wire closure is not described or discussed in any cardiosurgical guidelines. The hands-on experience of the surgeon plays a significant role. The aim of this work was to clarify the relationship between the number of turns of the suture and the resulting strength of the sternal fixation. METHODS: The study was performed in 2 independent steps. The first step was a finite element simulation, where the stress and strain distribution of the sternal fixation was observed. The second step included the experimental set-up and the statistical evaluation of the results. RESULTS: Our study showed that the failure force rose linearly as the number of turns increased. The lowest average measured force was 370 N (3 turns); the highest was 430 N (7 turns). The failure modes were either untwisting of the wires or rupture of the closure, which is controlled by the number of turns. As the number of turns increases, superficial cracks can occur. CONCLUSIONS: Based on our results, the 5-turn option is the best solution for the closure. The failure force is still double the value reported in the literature, so there is a high safety margin for failure. The failure mode is untwisting; hence, no unexpected fracture can occur, and there is still an elastic core in the cross-section of the wire. PMID- 29325027 TI - Pathogens, microbiome and the host: emergence of the ecological Koch's postulates. AB - Even though tremendous progress has been made in the last decades to elucidate the mechanisms of intestinal homeostasis, dysbiosis and disease, we are only at the beginning of understanding the complexity of the gut ecosystem and the underlying interaction networks. We are also only starting to unravel the mechanisms that pathogens have evolved to overcome the barriers imposed by the microbiota and host to exploit the system to their own benefit. Recent work in these domains clearly indicates that the 'traditional Koch's postulates', which state that a given pathogen leads to a distinct disease, are not valid for all 'infectious' diseases, but that a more complete and complex interpretation of Koch's postulates is needed in order to understand and explain them. This review summarises the current understanding of what defines a healthy gut ecosystem and highlights recent progress in uncovering the interplay between the host, its microbiota and invading intestinal pathogens. Based on these recent findings, we propose a new interpretation of Koch's postulates that we term 'ecological Koch's postulates'. PMID- 29325025 TI - Towards an understanding of resilience: responding to health systems shocks. AB - The recent outbreak of Ebola Virus Disease (EVD) in West Africa has drawn attention to the role and responsiveness of health systems in the face of shock. It brought into sharp focus the idea that health systems need not only to be stronger but also more 'resilient'. In this article, we argue that responding to shocks is an important aspect of resilience, examining the health system behaviour in the face of four types of contemporary shocks: the financial crisis in Europe from 2008 onwards; climate change disasters; the EVD outbreak in West Africa 2013-16; and the recent refugee and migration crisis in Europe. Based on this analysis, we identify '3 plus 2' critical dimensions of particular relevance to health systems' ability to adapt and respond to shocks; actions in all of these will determine the extent to which a response is successful. These are three core dimensions corresponding to three health systems functions: 'health information systems' (having the information and the knowledge to make a decision on what needs to be done); 'funding/financing mechanisms' (investing or mobilising resources to fund a response); and 'health workforce' (who should plan and implement it and how). These intersect with two cross-cutting aspects: 'governance', as a fundamental function affecting all other system dimensions; and predominant 'values' shaping the response, and how it is experienced at individual and community levels. Moreover, across the crises examined here, integration within the health system contributed to resilience, as does connecting with local communities, evidenced by successful community responses to Ebola and social movements responding to the financial crisis. In all crises, inequalities grew, yet our evidence also highlights that the impact of shocks is amenable to government action. All these factors are shaped by context. We argue that the '3 plus 2' dimensions can inform pragmatic policies seeking to increase health systems resilience. PMID- 29325028 TI - TSH and FT4 Concentrations in Congenital Central Hypothyroidism and Mild Congenital Thyroidal Hypothyroidism. AB - Context: In central hypothyroidism (CeH), free thyroxine (FT4) concentrations are low, whereas thyrotropin (TSH) concentrations may be low, normal, or even slightly elevated due to reduced bioactivity. Congenital CeH (CCeH) may be isolated or part of multiple pituitary hormone deficiencies (MPHD). Objective: We tested our hypotheses that (1) TSH concentrations have a more U-shaped distribution in children with CCeH compared with children with a normally functioning hypothalamic-pituitary-thyroid axis and (2) TSH concentrations in children with CCeH with MPHD are higher compared with children with isolated CCeH. We also studied whether FT4 levels are helpful in distinguishing CCeH from mild congenital hypothyroidism of thyroidal origin (CH-T). Methods: Dutch neonatal screening TSH and first diagnostic TSH and FT4 were analyzed in all children diagnosed with permanent CCeH between 1995 and 2012. Controls were children with T4-binding globulin deficiency. FT4 concentrations in CCeH were compared with those in CH-T with TSH values in the same range as those of CCeH. Results: We studied 120 children with CCeH (isolated CCeH, n = 50; MPHD, n = 70) and 350 control subjects. Screening TSH concentrations were not significantly different (P = 0.055), but diagnostic TSH values were significantly different between the CCeH group and the control group (P = 0.037). TSH was significantly higher in MPHD compared with isolated CCeH (P = 0.004). FT4 concentrations were significantly lower in CCeH compared with mild CH-T (P < 0.0005). Conclusion: TSH values in CCeH have a more U-shaped distribution compared with controls with the highest TSH concentrations in MPHD. FT4 levels were significantly lower in CCeH compared with CH-T. PMID- 29325029 TI - Neuroconductor: an R platform for medical imaging analysis. AB - Neuroconductor (https://neuroconductor.org) is an open-source platform for rapid testing and dissemination of reproducible computational imaging software. The goals of the project are to: (i) provide a centralized repository of R software dedicated to image analysis, (ii) disseminate software updates quickly, (iii) train a large, diverse community of scientists using detailed tutorials and short courses, (iv) increase software quality via automatic and manual quality controls, and (v) promote reproducibility of image data analysis. Based on the programming language R (https://www.r-project.org/), Neuroconductor starts with 51 inter-operable packages that cover multiple areas of imaging including visualization, data processing and storage, and statistical inference. Neuroconductor accepts new R package submissions, which are subject to a formal review and continuous automated testing. We provide a description of the purpose of Neuroconductor and the user and developer experience. PMID- 29325023 TI - The Extending Spectrum of NPC1-Related Human Disorders: From Niemann-Pick C1 Disease to Obesity. AB - The Niemann-Pick type C1 (NPC1) protein regulates the transport of cholesterol and fatty acids from late endosomes/lysosomes and has a central role in maintaining lipid homeostasis. NPC1 loss-of-function mutations in humans cause NPC1 disease, a rare autosomal-recessive lipid-storage disorder characterized by progressive and lethal neurodegeneration, as well as liver and lung failure, due to cholesterol infiltration. In humans, genome-wide association studies and post genome-wide association studies highlight the implication of common variants in NPC1 in adult-onset obesity, body fat mass, and type 2 diabetes. Heterozygous human carriers of rare loss-of-function coding variants in NPC1 display an increased risk of morbid adult obesity. These associations have been confirmed in mice models, showing an important interaction with high-fat diet. In this review, we describe the current state of knowledge for NPC1 variants in relationship to pleiotropic effects on metabolism. We provide evidence that NPC1 gene variations may predispose to common metabolic diseases by modulating steroid hormone synthesis and/or lipid homeostasis. We also propose several important directions of research to further define the complex roles of NPC1 in metabolism. This review emphasizes the contribution of NPC1 to obesity and its metabolic complications. PMID- 29325030 TI - The effect of RNA substitution models on viroid and RNA virus phylogenies. AB - Many viroids and RNA viruses have genomes that exhibit secondary structure, with paired nucleotides forming stems and loops. Such structures violate a key assumption of most methods of phylogenetic reconstruction, that sequence change is independent among sites. However, phylogenetic analyses of these transmissible agents rarely use evolutionary models that account for RNA secondary structure. Here we assess the effect of using RNA-specific nucleotide substitution models on the phylogenetic inference of viroids and RNA viruses. We obtained data sets comprising full-genome nucleotide sequences from 6 viroid and 10 single-stranded RNA virus species. For each alignment, we inferred consensus RNA secondary structures, then evaluated different DNA and RNA substitution models. We used model selection to choose the best-fitting model and evaluate estimated Bayesian phylogenies. Further, for each data set we generated and compared Robinson-Foulds (RF) statistics in order to test whether the distributions of trees generated under alternative models are notably different to each other. In all alignments, the best-fitting model was one that considers RNA secondary structure: RNA models that allow a non-zero rate of double substitution (RNA16A, RNA16C) fitted best for both viral and viroid data sets. In 14 of 16 data sets, the use of an RNA specific model led to significantly longer tree lengths, but only in 3 cases did it have a significant effect on RFs. In conclusion, using RNA model when undertaking phylogenetic inference of viroids and RNA viruses can provide a better model fit than standard approaches and model choice can significantly affect branch length estimates. PMID- 29325031 TI - Use of deep whole-genome sequencing data to identify structure risk variants in breast cancer susceptibility genes. AB - Functional disruptions of susceptibility genes by large genomic structure variant (SV) deletions in germlines are known to be associated with cancer risk. However, few studies have been conducted to systematically search for SV deletions in breast cancer susceptibility genes. We analysed deep (> 30x) whole-genome sequencing (WGS) data generated in blood samples from 128 breast cancer patients of Asian and European descent with either a strong family history of breast cancer or early cancer onset disease. To identify SV deletions in known or suspected breast cancer susceptibility genes, we used multiple SV calling tools including Genome STRiP, Delly, Manta, BreakDancer and Pindel. SV deletions were detected by at least three of these bioinformatics tools in five genes. Specifically, we identified heterozygous deletions covering a fraction of the coding regions of BRCA1 (with approximately 80kb in two patients), and TP53 genes (with ~1.6 kb in two patients), and of intronic regions (~1 kb) of the PALB2 (one patient), PTEN (three patients) and RAD51C genes (one patient). We confirmed the presence of these deletions using real-time quantitative PCR (qPCR). Our study identified novel SV deletions in breast cancer susceptibility genes and the identification of such SV deletions may improve clinical testing. PMID- 29325032 TI - Effect of diazoxide on Friedreich ataxia models. AB - Friedreich ataxia (FRDA) is an inherited recessive disorder caused by a deficiency in the mitochondrial protein frataxin. There is currently no effective treatment for FRDA available, especially for neurological deficits. In this study, we tested diazoxide, a drug commonly used as vasodilator in the treatment of acute hypertension, on cellular and animal models of FRDA. We first showed that diazoxide increases frataxin protein levels in FRDA lymphoblastoid cell lines, via the mammalian target of rapamycin (mTOR) pathway. We then explored the potential therapeutic effect of diazoxide in frataxin-deficient transgenic YG8sR mice and we found that prolonged oral administration of 3 mpk/d diazoxide was found to be safe, but produced variable effects concerning efficacy. YG8sR mice showed improved beam walk coordination abilities and footprint stride patterns, but a generally reduced locomotor activity. Moreover, they showed significantly increased frataxin expression, improved aconitase activity, and decreased protein oxidation in cerebellum and brain mitochondrial tissue extracts. Further studies are needed before this drug should be considered for FRDA clinical trials. PMID- 29325033 TI - Cancer Risk in Older Persons Living With Human Immunodeficiency Virus Infection in the United States. AB - Background: Cancer risk is increased in persons living with human immunodeficiency virus (HIV) (PLWH). Improved survival has led to an aging of PLWH. We evaluated the cancer risk in older PLWH (age >=50 years). Methods: We included data from the HIV/AIDS Cancer Match Study (1996-2012) and evaluated risks of Kaposi sarcoma (KS), non-Hodgkin lymphoma (NHL), Hodgkin lymphoma, and cervical, anal, lung, liver, oral cavity/pharyngeal, breast, prostate, and colon cancers in older PLWH with risk in the general population by calculating standardized incidence ratios (SIRs) and excess absolute risks (EARs). Cancer risk by time since HIV diagnosis was estimated using Poisson regression. Results: We identified 10371 cancers among 183542 older PLWH. Risk was significantly increased for KS (SIR, 103.34), NHL (3.05), Hodgkin lymphoma (7.61), and cervical (2.02), anal (14.00), lung (1.71), liver (2.91), and oral cavity/pharyngeal (1.66) cancers, and reduced for breast (0.61), prostate (0.47), and colon (0.63) cancers. SIRs declined with age for all cancers; however, EARs increased with age for anal, lung, liver, and oral cavity/pharyngeal cancers. Cancer risk was highest for most cancers within 5 years after HIV diagnosis; risk decreased with increasing time since HIV diagnosis for KS, NHL, lung cancer, and Hodgkin lymphoma. Conclusions: Cancer risk is elevated among older PLWH. Although SIRs decrease with age, EARs are higher for some cancers, reflecting a greater absolute excess in cancer incidence among older PLWH. High risk in the first 5 years after HIV diagnosis for some cancers highlights the need for early HIV diagnosis and rapid treatment initiation. PMID- 29325034 TI - Ghrelin Preserves Ischemia-Induced Vasodilation of Male Rat Coronary Vessels Following beta-Adrenergic Receptor Blockade. AB - Acute myocardial infarction (MI) triggers an adverse increase in cardiac sympathetic nerve activity (SNA). Whereas beta-adrenergic receptor (beta-AR) blockers are routinely used for the management of MI, they may also counter beta AR-mediated vasodilation of coronary vessels. We have reported that ghrelin prevents sympathetic activation following MI. Whether ghrelin modulates coronary vascular tone following MI, either through the modulation of SNA or directly as a vasoactive mediator, has never been addressed. We used synchrotron microangiography to image coronary perfusion and vessel internal diameter (ID) in anesthetized Sprague-Dawley rats, before and then again 30 minutes after induction of an MI (left coronary artery ligation). Rats were injected with either saline or ghrelin (150 ug/kg, subcutaneously), immediately following the MI or sham surgery. Coronary angiograms were also recorded following beta-AR blockade (propranolol, 2 mg/kg, intravenously). Finally, wire myography was used to assess the effect of ghrelin on vascular tone in isolated human internal mammary arteries (IMAs). Acute MI enhanced coronary perfusion to nonischemicregions through dilation of small arterioles (ID 50 to 250 um) and microvessel recruitment, irrespective of ghrelin treatment. In ghrelin-treated rats, beta-AR blockade did not alter the ischemia-induced vasodilation, yet in saline-treated rats, beta-AR blockade abolished the vasodilation of small arterioles. Finally, ghrelin caused a dose-dependent vasodilation of IMA rings (preconstricted with phenylephrine). In summary, this study highlights ghrelin as a promising adjunct therapy that can be used in combination with routine beta-AR blockade treatment for preserving coronary blood flow and cardiac performance in patients who suffer an acute MI. PMID- 29325035 TI - Amplicon-based next-generation sequencing of plasma cell-free DNA for detection of driver and resistance mutations in advanced non-small cell lung cancer. AB - Background: Genomic analysis of plasma cell-free DNA is transforming lung cancer care; however, available assays are limited by cost, turnaround time, and imperfect accuracy. Here, we study amplicon-based plasma next-generation sequencing (NGS), rather than hybrid-capture-based plasma NGS, hypothesizing this would allow sensitive detection and monitoring of driver and resistance mutations in advanced non-small cell lung cancer (NSCLC). Patients and methods: Plasma samples from patients with NSCLC and a known targetable genotype (EGFR, ALK/ROS1, and other rare genotypes) were collected while on therapy and analyzed blinded to tumor genotype. Plasma NGS was carried out using enhanced tagged amplicon sequencing of hotspots and coding regions from 36 genes, as well as intronic coverage for detection of ALK/ROS1 fusions. Diagnostic accuracy was compared with plasma droplet digital PCR (ddPCR) and tumor genotype. Results: A total of 168 specimens from 46 patients were studied. Matched plasma NGS and ddPCR across 120 variants from 80 samples revealed high concordance of allelic fraction (R2 = 0.95). Pretreatment, sensitivity of plasma NGS for the detection of EGFR driver mutations was 100% (30/30), compared with 87% for ddPCR (26/30). A full spectrum of rare driver oncogenic mutations could be detected including sensitive detection of ALK/ROS1 fusions (8/9 detected, 89%). Studying 25 patients positive for EGFR T790M that developed resistance to osimertinib, 15 resistance mechanisms could be detected including tertiary EGFR mutations (C797S, Q791P) and mutations or amplifications of non-EGFR genes, some of which could be detected pretreatment or months before progression. Conclusions: This blinded analysis demonstrates the ability of amplicon-based plasma NGS to detect a full range of targetable genotypes in NSCLC, including fusion genes, with high accuracy. The ability of plasma NGS to detect a range of preexisting and acquired resistance mechanisms highlights its potential value as an alternative to single mutation digital PCR based plasma assays for personalizing treatment of TKI resistance in lung cancer. PMID- 29325036 TI - Evaluation of left atrial linear ablation using contiguous and optimized radiofrequency lesions: the ALINE study. AB - Aims: Achieving block across linear lesions is challenging. We prospectively evaluated radiofrequency (RF) linear ablation at the roof and mitral isthmus (MI) using point-by-point contiguous and optimized RF lesions. Methods and results: Forty-one consecutive patients with symptomatic persistent AF underwent stepwise contact force (CF)-guided catheter ablation during ongoing AF. A single linear set of RF lesions was delivered at the roof and posterior MI according to the 'Atrial LINEar' (ALINE) criteria, i.e. point-by-point RF delivery (up to 35 W) respecting strict criteria of contiguity (inter-lesion distance <= 6 mm) and indirect lesion depth assessment (ablation index >=550). We assessed the incidence of bidirectional block across both lines only after restoration of sinus rhythm. After a median RF time of 7 min [interquartile range (IQR) 5-9], first-pass block across roof lines was observed in 38 of 41 (93%) patients. Final bidirectional roof block was achieved in 40 of 41 (98%) patients. First-pass block was observed in 8 of 35 (23%) MI lines, after a median RF time of 8 min (IQR 7-12). Additional endo- and epicardial (54% of patients) RF applications resulted in final bidirectional MI block in 28 of 35 (80%) patients. During a median follow-up of 396 (IQR 310-442) days, 12 patients underwent repeat procedures, with conduction recovery in 4 of 12 and 5 of 10 previously blocked roof lines and MI lines, respectively. No complications occurred. Conclusion: Anatomical linear ablation using contiguous and optimized RF lesions results in a high rate of first-pass block at the roof but not at the MI. Due to its complex 3D architecture, the MI frequently requires additional endo- and epicardial RF lesions to be blocked. PMID- 29325038 TI - The CRISPR-Cas system in Enterobacteriaceae. AB - In nature, microorganisms are constantly exposed to multiple viral infections and thus have developed many strategies to survive phage attack and invasion by foreign DNA. One of such strategies is the clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated proteins (Cas) bacterial immunological system. This defense mechanism is widespread in prokaryotes including several families such as Enterobacteriaceae. Much knowledge about the CRISPR-Cas system has been generated, including its biological functions, transcriptional regulation, distribution, utility as a molecular marker and as a tool for specific genome editing. This review focuses on these aspects and describes the state of the art of the CRISPR-Cas system in the Enterobacteriaceae bacterial family. PMID- 29325039 TI - The Stress Factor of Social Media. PMID- 29325037 TI - Mediator complex component MED13 regulates zygotic genome activation and is required for postimplantation development in the mouse. AB - Understanding factors that regulate zygotic genome activation (ZGA) is critical for determining how cells are reprogrammed to become totipotent or pluripotent. There is limited information regarding how this process occurs physiologically in early mammalian embryos. Here, we identify a mediator complex subunit, MED13, as translated during mouse oocyte maturation and transcribed early from the zygotic genome. Knockdown and conditional knockout approaches demonstrate that MED13 is essential for ZGA in the mouse, in part by regulating expression of the embryo specific chromatin remodeling complex, esBAF. The role of MED13 in ZGA is mediated in part by interactions with E2F transcription factors. In addition to MED13, its paralog, MED13L, is required for successful preimplantation embryo development. MED13L partially compensates for loss of MED13 function in preimplantation knockout embryos, but postimplantation development is not rescued by MED13L. Our data demonstrate an essential role for MED13 in supporting chromatin reprogramming and directed transcription of essential genes during ZGA. PMID- 29325040 TI - Phenotypic evaluation and characterization of 21 industrial Saccharomyces cerevisiae yeast strains. AB - Microorganisms have been studied and used extensively to produce value-added fuels and chemicals. Yeasts, specifically Saccharomyces cerevisiae, receive industrial attention because of their well-known ability to ferment glucose and produce ethanol. Thousands of natural or genetically modified S. cerevisiae have been found in industrial environments for various purposes. These industrial strains are isolated from industrial fermentation sites, and they are considered as potential host strains for superior fermentation processes. In many cases, industrial yeast strains have higher thermotolerance, increased resistances towards fermentation inhibitors and increased glucose fermentation rates under anaerobic conditions when compared with laboratory yeast strains. Despite the advantages of industrial strains, they are often not well characterized. Through screening and phenotypic characterization of commercially available industrial yeast strains, industrial fermentation processes requiring specific environmental conditions may be able to select an ideal starting yeast strain to be further engineered. Here, we have characterized and compared 21 industrial S. cerevisiae strains under multiple conditions, including their tolerance to varying pH conditions, resistance to fermentation inhibitors, sporulation efficiency and ability to ferment lignocellulosic sugars. These data may be useful for the selection of a parental strain for specific biotechnological applications of engineered yeast. PMID- 29325041 TI - Spontaneous massive hemothorax presenting as a late complication of stent implantation in a patient with pulmonary vein stenosis following radiofrequency ablation for atrial fibrillation. AB - Catheter ablation for symptomatic and drug-resistant atrial fibrillation is considered as the main acquired cause of pulmonary vein stenosis in adults. Controversy currently exists about the optimal treatment approach of this entity. Stenting seems to achieve lower vessel restenosis rates than isolated balloon angioplasty. However, these techniques are not exempt from complications. We present a case of spontaneous massive haemothorax presenting as a late complication of stent implantation in a patient with pulmonary vein stenosis. PMID- 29325042 TI - Biochemistry of complex glycan depolymerisation by the human gut microbiota. AB - The human gut microbiota (HGM) makes an important contribution to health and disease. It is a complex microbial community of trillions of microbes with a majority of its members represented within two phyla, the Bacteroidetes and Firmicutes, although it also contains species of Actinobacteria and Proteobacteria. Reflecting its importance, the HGM is sometimes referred to as an 'organ' as it performs functions analogous to systemic tissues within the human host. The major nutrients available to the HGM are host and dietary complex carbohydrates. To utilise these nutrient sources, the HGM has developed elaborate, variable and sophisticated systems for the sensing, capture and utilisation of these glycans. Understanding nutrient acquisition by the HGM can thus provide mechanistic insights into the dynamics of this ecosystem, and how it impacts human health. Dietary nutrient sources include a wide variety of simple and complex plant and animal-derived glycans most of which are not degraded by enzymes in the digestive tract of the host. Here we review how various adaptive mechanisms that operate across the major phyla of the HGM contribute to glycan utilisation, focusing on the most complex carbohydrates presented to this ecosystem. PMID- 29325043 TI - RomA, A Periplasmic Protein Involved in the Synthesis of the Lipopolysaccharide, Tunes Down the Inflammatory Response Triggered by Brucella. AB - Brucellaceae are stealthy pathogens with the ability to survive and replicate in the host in the context of a strong immune response. This capacity relies on several virulence factors that are able to modulate the immune system and in their structural components that have low proinflammatory activities. Lipopolysaccharide (LPS), the main component of the outer membrane, is a central virulence factor of Brucella, and it has been well established that it induces a low inflammatory response. We describe here the identification and characterization of a novel periplasmic protein (RomA) conserved in alpha proteobacteria, which is involved in the homeostasis of the outer membrane. A mutant in this gene showed several phenotypes, such as membrane defects, altered LPS composition, reduced adhesion, and increased virulence and inflammation. We show that RomA is involved in the synthesis of LPS, probably coordinating part of the biosynthetic complex in the periplasm. Its absence alters the normal synthesis of this macromolecule and affects the homeostasis of the outer membrane, resulting in a strain with a hyperinflammatory phenotype. Our results suggest that the proper synthesis of LPS is central to maximize virulence and minimize inflammation. PMID- 29325044 TI - Adaptation of Staphylococcus aureus to Airway Environments in Patients With Cystic Fibrosis by Upregulation of Superoxide Dismutase M and Iron-Scavenging Proteins. AB - Adaptation of S. aureus to the hostile environment of CF airways resulted in changed abundance of proteins involved in energy metabolism, cellular processes, transport and binding, but most importantly in an iron-scavenging phenotype and increased activity of superoxide dismutase M. PMID- 29325046 TI - The rise of a new associationist school for lesion-symptom mapping. PMID- 29325045 TI - Mean High-Dose l-Thyroxine Treatment Is Efficient and Safe to Achieve a Normal IQ in Young Adult Patients With Congenital Hypothyroidism. AB - Context: The optimal levothyroxine (LT4) dose to treat congenital hypothyroidism (CH) remains unclear, with debate over whether higher starting doses (>10 ug/kg) are necessary and safe for a normal intelligence quotient (IQ). Objective: To examine psychomotor, metabolic, and quality of life (QoL) outcomes in patients with CH treated with a mean high initial LT4 dose. Design, settings, participants: A cross-sectional cohort study of patients with CH identified in the Berlin newborn screening program from 1979 to 2003; 76 patients with CH (mean age, 18 years; mean initial LT4 dose, 13.5 ug/kg) and 40 siblings completed the study. Main outcome measures: Psychomotor (Wechsler Intelligence Test, CNS Vital Signs), QoL (short form-36 Health Survey), anthropometric (body mass index, height), and metabolic (intima media thickness, laboratory parameters) outcomes were compared with those of healthy siblings. Mean values and percentage of episodes of elevated thyroxine (T4) and tri-jod-thyronin (T3) and suppressed thyrotropin (TSH) before age 2 years were analyzed. A meta-analysis of CH treatment studies was performed. Results: There were no significant differences in IQ, QoL, or other outcome measures in patients with CH compared with controls. Most T4 levels were high before age 2 years and during subsequent testing, but mean T3 and TSH levels remained normal. The meta-analysis showed a significant IQ difference in severe vs mild CH cases only when treatment started with an LT4 dose <10 ug/kg. Conclusions: High initial LT4 dosing was effective and safely achieved optimal cognitive development in patients with CH, including those severely affected. Supranormal T4 values during infancy were not associated with impaired IQ in adolescence. PMID- 29325047 TI - Early nucleus basalis of Meynert degeneration predicts cognitive decline in Parkinson's disease. PMID- 29325049 TI - Spread of tau deposits: can we trust in vivo findings? PMID- 29325048 TI - Holding down the pain. PMID- 29325050 TI - Editorial. PMID- 29325051 TI - Dr Harrison Martland and the history of punch drunk syndrome. PMID- 29325052 TI - A MicroRNA Signature for Evaluation of Risk and Severity of Autoimmune Thyroid Diseases. AB - Context: Circulating microRNAs (miRNAs) are emerging as an interesting research area because of their potential role as novel biomarkers and therapeutic targets. Their involvement in autoimmune thyroid diseases (AITDs) has not been fully explored. Objective: To compare the expression profile of miRNAs in thyroid tissue from patients with AITD and controls, using next-generation sequencing, further validated our findings in thyroid and serum samples. Design: Twenty fresh frozen thyroid tissues (15 from patients with AITD and 5 from controls) were used for miRNA next-generation sequencing. Thirty-six thyroid samples were recruited for the qRT-PCR validation test and 58 serum samples for further validation in peripheral blood. Results: Expression of several miRNAs that had been previously associated with relevant immunological functions was significantly dysregulated. Specifically, eight differentially expressed miRNAs (miR-21-5p, miR-142-3p, miR 146a-5p, miR-146b-5p, miR-155-5p, miR-338-5p, miR-342-5p, and miR-766-3p) were confirmed using qRT-PCR in thyroid samples, and three had the same behavior in tissue and serum samples (miR-21-5p, miR-142-3p, and miR-146a-5p). Furthermore, when the expression of these miRNAs was assessed together with five additional ones previously related to AITD in peripheral blood, the expression of five (miR Let7d-5p, miR-21-5p, miR-96-5p, miR-142-3p, and miR-301a-3p) was significantly expressed in AITD and, in patients with Graves disease (GD), was correlated with a higher severity of disease, including active ophthalmopathy, goiter, higher antibody titers, and/or higher recurrence rates. Conclusions: The present findings identify a serum five-signature miRNA that could be an independent risk factor for developing AITD and a predisposition of a worse clinical picture in patients with GD. PMID- 29325053 TI - Corrigendum to: Incidence and outcomes of emergent cardiac surgery during transfemoral transcatheter aortic valve implantation (TAVI): insights from the European Registry on Emergent Cardiac Surgery during TAVI (EuRECS-TAVI). PMID- 29325054 TI - Dehydration survival of crop plants and its measurement. AB - Dehydration survival under drought stress is defined in this review as the transition from plant activity into a quiescent state of life preservation, which will be terminated by either recovery or death, depending on the stress regime and the plant's resilience. Dehydration survival is a popular phenotype by which functional genomics attempts to test gene function in drought resistance and survival. The available reports on phenotyping and genotyping of dehydration survival in genomic studies indicate that the measurement of this trait is often biased to the extent that misguided interpretations are likely to occur. This review briefly discusses the physiological basis of dehydration survival in resurrection plants and crop plants, and concludes that in phenotyping dehydration survival there is a need to distinguish between dehydration avoidance and dehydration tolerance (also termed desiccation tolerance) in affecting survival and recovery. Without this distinction, functional genomics studies of the trait might be biased. Survival due to dehydration avoidance is expressed by the capacity to maintain a relatively high plant water status as the plant is desiccated. Survival due to dehydration tolerance is expressed by delayed mortality (mortality at a relatively low plant water status) as affected by the resilience of plant metabolism. The common test of dehydration survival, using the relative recovery after a given number of stress days, is therefore insufficient because it is mainly driven by dehydration avoidance and so ignores a possible role for dehydration tolerance. Conceivable methods for more accurate phenotyping of the two components of dehydration survival are proposed and discussed. PMID- 29325055 TI - Prevalence and Associated Risk Factors of Malaria in the First Trimester of Pregnancy: A Preconceptional Cohort Study in Benin. AB - Background: There is a lack of data on the burden of malaria in the first trimester of pregnancy in Africa, mainly because pregnant women generally attend the maternity clinic late. Bed nets are rarely provided to women before the second trimester of pregnancy and intermittent preventive treatment with sulfadoxine-pyrimethamine is not recommended before the second trimester, leaving women insufficiently or not protected in early pregnancy. Methods: To assess the burden of first trimester malaria, 387 women were followed up monthly from preconception to delivery. They were screened for malaria monthly from early pregnancy until delivery. A logistic multilevel model was used to assess maternal factors associated with malaria during the first trimester. Results: The proportion of women with at least 1 microscopic malaria infection during the first trimester of pregnancy was 20.8%. Women infected with malaria preconception were more likely to be infected during the first trimester (adjusted odds ratio: 2.68; 95% confidence interval, 1.24-5.78). Early gestational age was also positively correlated with malaria infection. Conclusions: Using a preconceptional study design, we showed that malaria was highly prevalent in early pregnancy. This calls for the assessment of new strategies that could protect women as soon as the first trimester. PMID- 29325056 TI - Social health insurance schemes in Africa leave out the poor. PMID- 29325057 TI - Tumor purity quantification by clonal DNA methylation signatures. AB - Motivation: Controlling for tumor purity in molecular analyses is essential to allow for reliable genomic aberration calls, for inter-sample comparison and to monitor heterogeneity of cancer cell populations. In genome wide screening studies, the assessment of tumor purity is typically performed by means of computational methods that exploit somatic copy number aberrations. Results: We present a strategy, called Purity Assessment from clonal MEthylation Sites (PAMES), which uses the methylation level of a few dozen, highly clonal, tumor type specific CpG sites to estimate the purity of tumor samples, without the need of a matched benign control. We trained and validated our method in more than 6000 samples from different datasets. Purity estimates by PAMES were highly concordant with other state-of-the-art tools and its evaluation in a cancer cell line dataset highlights its reliability to accurately estimate tumor admixtures. We extended the capability of PAMES to the analysis of CpG islands instead of the more platform-specific CpG sites and demonstrated its accuracy in a set of advanced tumors profiled by high throughput DNA methylation sequencing. These analyses show that PAMES is a valuable tool to assess the purity of tumor samples in the settings of clinical research and diagnostics. Availability and implementation: https://github.com/cgplab/PAMES. Contact: matteo.benelli@uslcentro.toscana.it or f.demichelis@unitn.it. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29325059 TI - Aging in the Philippines. AB - The Philippines is a diverse country that will experience an increase in its aging population in the near future. The aim of this article is to provide an overview of the main issues surrounding population aging, as well as family caregiving and policies that are of concern to older adults in the Philippines. Policymakers and government leaders must plan for the expected growth in the numbers of older adults, which is likely to increase the demand for services and support for elders and their caregiving families. The Philippines' unique history and rich culture shapes its citizens' views on aging and bolsters expectations of informal caregiving for older family members. Research on aging in the Philippines and current policies must be enhanced to adequately address the needs of the country's aging citizens. PMID- 29325058 TI - Serum Carnitine Metabolites and Incident Type 2 Diabetes Mellitus in Patients With Suspected Stable Angina Pectoris. AB - Context: Carnitine and its metabolites are centrally involved in fatty acid metabolism. Although elevated circulating concentrations have been observed in obesity and insulin resistance, prospective studies examining whether these metabolites are associated with incident type 2 diabetes mellitus (T2D) are sparse. Objective: We performed a comprehensive evaluation of metabolites along the carnitine pathway relative to incident T2D. Design: A total of 2519 patients (73.1% men) with coronary artery disease, but without T2D, were followed for median 7.7 years until the end of 2009, during which 173 (6.9%) new cases of T2D were identified. Serum levels of free carnitine, its precursors trimethyllysine (TML) and gamma-butyrobetaine, and the esters acetyl-, propionyl-, (iso)valeryl-, octanoyl-, and palmitoylcarnitine were measured by liquid chromatography/tandem mass spectrometry. Risk associations were explored by logistic regression and reported per (log-transformed) standard deviation increment. Results: Median age at inclusion was 62 years and median body mass index (BMI) 26.0 kg/m2. In models adjusted for age, sex, fasting status, BMI, estimated glomerular filtration rate, glycated hemoglobin A1c, triglyceride and high-density lipoprotein cholesterol levels, and study center, serum levels of TML and palmitoylcarnitine associated positively [odds ratio (95% confidence interval), 1.22 (1.04 to 1.43) and 1.24 (1.04 to 1.49), respectively], whereas gamma-butyrobetaine associated negatively [odds ratio (95% confidence interval) 0.81 (0.66 to 0.98)] with T2D risk. Conclusion: Serum levels of TML, gamma-butyrobetaine, and the long-chained palmitoylcarnitine predict long-term risk of T2D independently of traditional risk factors, possibly reflecting dysfunctional fatty acid metabolism in patients susceptible to T2D development. PMID- 29325060 TI - Pathophysiological analyses of leptomeningeal heterotopia using gyrencephalic mammals. AB - Leptomeningeal glioneuronal heterotopia (LGH) is a focal malformation of the cerebral cortex and frequently found in patients with thanatophoric dysplasia (TD). The pathophysiological mechanisms underlying LGH formation are still largely unclear because of difficulties in obtaining brain samples from human TD patients. Recently, we established a new animal model for analysing cortical malformations of human TD by utilizing our genetic manipulation technique for gyrencephalic carnivore ferrets. Here we investigated the pathophysiological mechanisms underlying the formation of LGH using our TD ferrets. We found that LGH was formed during corticogenesis in TD ferrets. Interestingly, we rarely found Ki-67-positive and phospho-histone H3-positive cells in LGH, suggesting that LGH formation does not involve cell proliferation. We uncovered that vimentin-positive radial glial fibers and doublecortin-positive migrating neurons were accumulated in LGH. This result may indicate that preferential cell migration into LGH underlies LGH formation. Our findings provide novel mechanistic insights into the pathogenesis of LGH in TD. PMID- 29325061 TI - Innovative strategies to improve adherence to non-vitamin K antagonist oral anticoagulants for stroke prevention in atrial fibrillation. PMID- 29325062 TI - ST-segment elevation myocardial infarction: the new ESC Guidelines. PMID- 29325063 TI - Epidemiology and Outcomes of Hematopoietic Stem Cell Transplantation in Human Immunodeficiency Virus-Positive Patients From 1998 to 2012: A Nationwide Analysis. AB - Background: Prior studies have shown that outcomes of hematopoietic stem cell transplantation (HSCT) in human immunodeficiency virus (HIV)-positive patients have been similar to outcomes in HIV-negative patients since effective implementation of highly active antiretroviral therapy by 1998, but they are limited by small sample size or noninclusion of recent data. Methods: We queried National Inpatient Sample, a large inpatient data set in the United States, from 1998 to 2012 for HSCT, using the International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM) procedure code 41.0. HIV-positive patients were identified by the presence of ICD-9-CM diagnostic codes 042, 043, 044, V08, and 079.53. The primary outcome was in-hospital mortality rate, and the secondary outcome the in-hospital complication rate of HSCT. Outcomes were assessed by means of univariate, multivariate regression and matched-pair analysis. Results: A total of 39517 patients who underwent HSCT were identified. Among these, 108 patients had HIV infection. There were no differences in in hospital mortality rates or rates of intubation, sepsis, bacteremia, or graft-vs host disease between HIV-positive and HIV-negative patients after allogeneic or autologous HSCT. In allogeneic HSCT, HIV-positive patients had a significantly higher incidence of nontuberculous mycobacterial and cytomegalovirus infection than HIV-negative patients. Conclusion: Although HIV-positive patients may have a higher risk of certain opportunistic infections, they are not at higher risk of serious in-hospital complications of HSCT. Allogeneic and autologous HSCT can be safely performed in HIV-positive patients. PMID- 29325064 TI - Comparison of right ventricular function after ministernotomy and full sternotomy aortic valve replacement: a randomized study. AB - OBJECTIVES: Right ventricular (RV) function is impaired after cardiac surgery, possibly because of the opening of the pericardium. In minimally invasive aortic valve replacement, the pericardium is only partially incised. METHODS: A randomized trial compared RV function after ministernotomy versus full sternotomy in 40 adults undergoing aortic valve replacement at the Karolinska University Hospital. Primary outcomes were tricuspid annular plane systolic excursion, RV pulsed-wave tissue Doppler velocity, RV fractional area change and basal and mid RV transversal diameters on postoperative Days 4 and 40. RESULTS: On postoperative Day 4, the tricuspid annular plane systolic excursion had decreased in both groups [ministernotomy: median (Q1-Q3) 25 (21-28) vs 16 (11-18), P < 0.001; sternotomy: 22.5 (22-22.5) vs 8 (7-12) mm, P < 0.001] but was higher in the ministernotomy group (P < 0.001). Pulsed-wave tissue Doppler RV velocity decreased significantly in patients who underwent sternotomy [10.5 (10-12) vs 6.5 (5-8) cm/s, P < 0.001] but did not decrease significantly in patients who underwent ministernotomy [11.5 (11-12) vs 10 (9-11) cm/s, P = 0.054]. Fractional area change was equally decreased in both groups [ministernotomy: 46 (39-51) vs 38 (34-44)%, P < 0.001; sternotomy: 45 (40-49) vs 37 (25-39.5)%, P = 0.003]. RV dimensions did not change on postoperative Day 4 in both groups. The differences between the 2 groups were similar 40 days postoperatively. CONCLUSIONS: RV long axis function was reduced after both ministernotomy and full sternotomy aortic valve replacement, but the reduction was more pronounced in the full sternotomy group. Global RV function was equally impaired in both groups postoperatively. Clinical trial registration: http://www.clinicaltrials.gov. Unique identifier: NCT01972555. PMID- 29325065 TI - Change in parental knowledge, attitudes and practice of antibiotic use after a national intervention programme. AB - Background: Nation-wide multifaceted interventions to improve antibiotic use were undertaken in the former Yugoslav Republic of Macedonia in September 2014. This study aimed to assess the parental knowledge and attitudes about antibiotics, and self-medication practices in children, and evaluate the impact of interventions on these parameters. Methods: Pre-post-intervention surveys were conducted in May 2014-16 in three administrative regions in the country. Data were collected by interviewing parents of children younger than 15 years of age through a questionnaire. The analysis of knowledge, attitudes and antibiotic use involved descriptive quantitative statistics. The effects of interventions were assessed by a logistic and linear regression analysis. Results: Data from 1203 interviewees showed that 80% of parents knew that antibiotics could kill bacteria, while 40% believed antibiotics could kill viruses. One third of parents expressed potential dissatisfaction with doctors who would not agree with them on antibiotic use. More parents received information about not taking antibiotics unnecessarily after the interventions, but the rates decreased one year later. At baseline, 20% of the parents and 10% of the children who received antibiotics in previous year, took them without prescriptions. Parental self-medication rates did not change over time, while children rates decreased only in 2015. Conclusion: The insignificant and short-term changes in knowledge, attitudes and self-medication demonstrate that interventions need to be implemented for a longer period of time, at a large scale, with active health providers' engagement, and accompanied by inspections to promote appropriate use of antibiotics and discourage self-medication. PMID- 29325066 TI - Toppar: an interactive browser for viewing association study results. AB - Summary: Data integration and visualization help geneticists make sense of large amounts of data. To help facilitate interpretation of genetic association data we developed Toppar, a customizable visualization tool that stores results from association studies and enables browsing over multiple results, by combining features from existing tools and linking to appropriate external databases. Availability and implementation: Detailed information on Toppar's features and functionality are on our website http://mccarthy.well.ox.ac.uk/toppar/docs along with instructions on how to download, install and run Toppar. Our online version of Toppar is accessible from the website and can be test-driven using Firefox, Safari or Chrome on sub-sets of publicly available genome-wide association study anthropometric waist and body mass index data (Locke et al., 2015; Shungin et al., 2015) from the Genetic Investigation of ANthropometric Traits consortium. Contact: totajuliusd@gmail.com. PMID- 29325067 TI - Cardiac rehabilitation in patients with acute coronary syndrome with primary percutaneous coronary intervention is associated with improved 10-year survival. AB - Aims: We aimed to assess the effects of a multidisciplinary cardiac rehabilitation (CR) program on survival after treatment with primary percutaneous coronary intervention (pPCI) for acute coronary syndrome (ACS). Methods and results: Using propensity matching analysis, a total of 1159 patients undergoing CR were 1:1 matched with ACS patients who did not undergo CR and survived at least 60 days. The Kaplan-Meier analyses and multivariate Cox regression analysis were applied to study differences in survival. During follow-up, a total of 335 (14.5%) patients had died. Cumulative mortality rates at 5 and 10 years were 6.4% and 14.7% after CR and 10.4% and 23.5% in the no CR group (P < 0.001). Cardiac rehabilitation patients had 39% lower mortality than non-CR controls [10-year mortality 14.7% vs. 23.5%; adjusted hazard ratio (HR) 0.61; 95% confidence interval (CI) 0.46-0.81]. A total of 915 (78.9%) patients completed CR and had 46% lower mortality than those who did not complete CR (10-year mortality 13.6% vs. 18.9%; adjusted HR 0.54; 95% CI 0.42-0.70). Conclusion: Patients who underwent pPCI for ACS, with a CR program had lower mortality than their non-CR counterparts. Mortality was particularly low in patients who completed the program. In conclusion, CR is still beneficial in terms of survival. PMID- 29325068 TI - Emergence of Nonfalciparum Plasmodium Infection Despite Regular Artemisinin Combination Therapy in an 18-Month Longitudinal Study of Ugandan Children and Their Mothers. AB - As part of a longitudinal cohort investigation of intestinal schistosomiasis and malaria in Ugandan children and their mothers on the shorelines of Lakes Victoria and Albert, we documented risk factors and morbidity associated with nonfalciparum Plasmodium infections and the longitudinal dynamics of Plasmodium species in children. Host age, household location, and Plasmodium falciparum infection were strongly associated with nonfalciparum Plasmodium infections, and Plasmodium malariae infection was associated with splenomegaly. Despite regular artemisinin combination therapy treatment, there was a 3-fold rise in P. malariae prevalence, which was not accountable for by increasing age of the child. Worryingly, our findings reveal the consistent emergence of nonfalciparum infections in children, highlighting the complex dynamics underlying multispecies infections here. Given the growing body of evidence that nonfalciparum malaria infections cause significant morbidity, we encourage better surveillance for nonfalciparum Plasmodium infections, particularly in children, with more sensitive DNA detection methods and improved field-based diagnostics. PMID- 29325069 TI - Effect of healthcare spending on the relationship between the Human Development Index and maternal and neonatal mortality. AB - Background: Several factors affect morbidity and mortality the world over. Previous research shows mortality rates are higher among individuals of lower socio-economic status. We investigated the trajectory of neonatal (NM) and maternal (MM) mortality between 2010 and 2014 and the effect of healthcare spending on the relationship between the Human Development Index (HDI) and NM and MM. Methods: Data were obtained from the United Nations Development Program and World Bank. Latent growth curve models (LGCMs) were estimated to determine the trajectory of NM and MM across the study period and the effect of the HDI on NM and MM. Mediation analysis was used to determine if healthcare expenditure mediated the relationship between HDI and NM and MM rates. ArcGIS (Esri, Redlands, CA, USA) was used to generate a choropleth map of changes in NM and MM between 2010 and 2014. Findings: Results showed many countries in Africa enjoyed decreases in NM and MM between 2010 and 2014, but other countries (Algeria, Libya and Sudan) showed little or no improvement. The LGCM for NM (Comparative Fit Index=0.956) and MM (CFI=0.963) demonstrated good fit to the data and showed that the HDI was negatively related to NM and MM. Mediation analysis showed that healthcare spending mediated the relationship between NM and MM in each year. Conclusions: Given that healthcare spending can mediate the relationship between HDI and NM and MM, increases in healthcare spending among countries with low HDI could improve NM and MM outcomes. PMID- 29325070 TI - Modification of the Association Between T-Cell Immune Responses and Human Immunodeficiency Virus Type 1 Infection Risk by Vaccine-Induced Antibody Responses in the HVTN 505 Trial. AB - Background: HVTN 505 was a human immunodeficiency virus type 1 (HIV-1) preventive vaccine efficacy trial of a DNA/recombinant adenovirus serotype 5 (rAd5) vaccine regimen. We assessed antibody responses measured 1 month after final vaccination (month 7) as correlates of HIV-1 acquisition risk. Methods: Binding antibody responses were quantified in serum samples from 25 primary endpoint vaccine cases (diagnosed with HIV-1 infection between month 7 and month 24) and 125 randomly sampled frequency-matched vaccine controls (HIV-1 negative at month 24). We prespecified for a primary analysis tier 6 antibody response biomarkers that measure immunoglobulin G (IgG) and immunoglobulin A (IgA) binding to Env proteins and 2 previously assessed T-cell response biomarkers. Results: Envelope-specific IgG responses were significantly correlated with decreased HIV-1 risk. Moreover, the interaction of IgG responses and Env-specific CD8+ T-cell polyfunctionality score had a highly significant association with HIV-1 risk after adjustment for multiple comparisons. Conclusions: Vaccinees with higher levels of Env IgG have significantly decreased HIV-1 risk when CD8+ T-cell responses are low. Moreover, vaccinees with high CD8+ T-cell responses generally have low risk, and those with low CD8+ T-cell and low Env antibody responses have high risk. These findings suggest the critical importance of inducing a robust IgG Env response when the CD8+ T-cell response is low. PMID- 29325071 TI - Viral suppressors of RNAi employ a rapid screening mode to discriminate viral RNA from cellular small RNA. AB - RNA interference (RNAi) is an indispensable mechanism for antiviral defense in insects, including mosquitoes that transmit human diseases. To escape this antiviral defense system, viruses encode suppressors of RNAi that prevent elimination of viral RNAs, and thus ensure efficient virus accumulation. Although the first animal Viral Suppressor of RNAi (VSR) was identified more than a decade ago, the molecular basis of RNAi suppression by these viral proteins remains unclear. Here, we developed a single-molecule fluorescence assay to investigate how VSRs inhibit the recognition of viral RNAs by Dcr-2, a key endoribonuclease enzyme in the RNAi pathway. Using VSRs from three insect RNA viruses (Culex Y virus, Drosophila X virus and Drosophila C virus), we reveal bimodal physical interactions between RNA molecules and VSRs. During initial interactions, these VSRs rapidly discriminate short RNA substrates from long dsRNA. VSRs engage nearly irreversible binding with long dsRNAs, thereby shielding it from recognition by Dcr-2. We propose that the length-dependent switch from rapid screening to irreversible binding reflects the main mechanism by which VSRs distinguish viral dsRNA from cellular RNA species such as microRNAs. PMID- 29325073 TI - The Women's Health Diagnostic Gap. AB - Pregnancy remains a significant health risk to women in both developed and underdeveloped countries. Worldwide, 10 to 20 million women have pregnancy complications including ectopic pregnancy, preterm birth, gestational diabetes mellitus, and hypertensive states, including preeclampsia. Despite advancements in women's health research, there is a large gap in the diagnostic tools available to screen, diagnose, and monitor these conditions. Herein, we examine existing diagnostic tools, such as the human chorionic gonadotropin discriminatory zone, cervicovaginal fetal fibronectin, sFlt-1:PlGF ratio, and glucose tolerance testing. We suggest specific objectives to improve diagnostic testing during pregnancy, including (1) developing high-quality biospecimen banks; (2) educating professionals on performance characteristics of screening tests for low prevalence diseases; (3) funding studies that address diseases unique to pregnancy; and (4) establishing trimester-specific reference intervals. Meeting these objectives could begin to narrow the diagnostic gap in women's health. PMID- 29325072 TI - Sensitive and specific post-call filtering of genetic variants in xenograft and primary tumors. AB - Motivation: Tumor genome sequencing offers great promise for guiding research and therapy, but spurious variant calls can arise from multiple sources. Mouse contamination can generate many spurious calls when sequencing patient-derived xenografts. Paralogous genome sequences can also generate spurious calls when sequencing any tumor. We developed a BLAST-based algorithm, Mouse And Paralog EXterminator (MAPEX), to identify and filter out spurious calls from both these sources. Results: When calling variants from xenografts, MAPEX has similar sensitivity and specificity to more complex algorithms. When applied to any tumor, MAPEX also automatically flags calls that potentially arise from paralogous sequences. Our implementation, mapexr, runs quickly and easily on a desktop computer. MAPEX is thus a useful addition to almost any pipeline for calling genetic variants in tumors. Availability and implementation: The mapexr package for R is available at https://github.com/bmannakee/mapexr under the MIT license. Contact: mannakee@email.arizona.edu or rgutenk@email.arizona.edu or eknudsen@email.arizona.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29325074 TI - Cervical Disc Arthroplasty: Current Evidence and Real-World Application. AB - Cervical total disc replacement (cTDR) is still considered a developing technology, with widespread clinical use beginning in the early 2000s. Despite being relatively new to the marketplace, the literature surrounding cTDR is abundant. We conducted a thorough review of literature published in the United States (US) and outside the US to report the current global state of cTDR research and clinical use. Search criteria were restricted to publications with a clinical patient population, excluding finite element analyses, biomechanical studies, cadaver studies, surgical technique-specific papers, and case studies. US publications mostly encompass the results of the highly controlled Food and Drug Administration Investigational Device Exemption trials. The predominantly level I evidence in the US literature supports the use of cTDR at 1 and 2 surgical levels when compared to anterior cervical discectomy and fusion. In general, the outside the US studies typically have smaller patient populations, are rarely controlled, and include broader surgical indications. Though these studies are of lower levels of evidence, they serve to advance patient indications in the use of cTDR. Complications such as secondary surgery, heterotopic ossification, and adjacent segment degeneration also remain a focus of studies. Other external challenges facing cTDR technology include regulatory restrictions and health economics, both of which are beginning to be addressed. Combined, the evidence for cTDR is robust supporting a variety of clinical indications. PMID- 29325079 TI - Cardiovascular conditions predisposing to infective endocarditis: time to reconsider the current risk classification system? PMID- 29325077 TI - Integrating restriction site-associated DNA sequencing (RAD-seq) with morphological cladistic analysis clarifies evolutionary relationships among major species groups of bee orchids. AB - Background and Aims: Bee orchids (Ophrys) have become the most popular model system for studying reproduction via insect-mediated pseudo-copulation and for exploring the consequent, putatively adaptive, evolutionary radiations. However, despite intensive past research, both the phylogenetic structure and species diversity within the genus remain highly contentious. Here, we integrate next generation sequencing and morphological cladistic techniques to clarify the phylogeny of the genus. Methods: At least two accessions of each of the ten species groups previously circumscribed from large-scale cloned nuclear ribosomal internal transcibed spacer (nrITS) sequencing were subjected to restriction site associated sequencing (RAD-seq). The resulting matrix of 4159 single nucleotide polymorphisms (SNPs) for 34 accessions was used to construct an unrooted network and a rooted maximum likelihood phylogeny. A parallel morphological cladistic matrix of 43 characters generated both polymorphic and non-polymorphic sets of parsimony trees before being mapped across the RAD-seq topology. Key Results: RAD seq data strongly support the monophyly of nine out of ten groups previously circumscribed using nrITS and resolve three major clades; in contrast, supposed microspecies are barely distinguishable. Strong incongruence separated the RAD seq trees from both the morphological trees and traditional classifications; mapping of the morphological characters across the RAD-seq topology rendered them far more homoplastic. Conclusions: The comparatively high level of morphological homoplasy reflects extensive convergence, whereas the derived placement of the fusca group is attributed to paedomorphic simplification. The phenotype of the most recent common ancestor of the extant lineages is inferred, but it post-dates the majority of the character-state changes that typify the genus. RAD-seq may represent the high-water mark of the contribution of molecular phylogenetics to understanding evolution within Ophrys; further progress will require large-scale population-level studies that integrate phenotypic and genotypic data in a cogent conceptual framework. PMID- 29325078 TI - Genomic basis of recombination suppression in the hybrid between Caenorhabditis briggsae and C. nigoni. AB - DNA recombination is required for effective segregation and diversification of genomes and for the successful completion of meiosis. Recent studies in various species hybrids have demonstrated a genetic link between DNA recombination and speciation. Consistent with this, we observed a striking suppression of recombination in the hybrids between two nematodes, the hermaphroditic Caenorhabditis briggsae and the gonochoristic C. nigoni. To unravel the molecular basis underlying the recombination suppression in their hybrids, we generated a C. nigoni genome with chromosome-level contiguity and produced an improved C. briggsae genome with resolved gaps up to 2.8 Mb. The genome alignment reveals not only high sequence divergences but also pervasive intra- and inter-chromosomal sequence re-arrangements between the two species, which are plausible culprits for the observed suppression. Comparison of recombination boundary sequences suggests that recombination in the hybrid requires extensive sequence homology, which is rarely seen between the two genomes. The new genomes and genomic libraries form invaluable resources for studying genome evolution, hybrid incompatibilities and sex evolution for this pair of model species. PMID- 29325080 TI - DST659 genotype of Candida albicans showing positive association between biofilm formation and dominance in Taiwan. AB - Based on multiple locus sequence typing, we previously found that DST659 and DST693 were dominant genotypes of Candida albicans among the bloodstream isolates at Chang-Gung Memorial Hospital at Linkou. Biofilm-forming activity, which is critical for C. albicans virulence, probably contributed to the dominance of antifungal sensitive isolates in hospital. Both in vitro membrane weighting and in vivo zebrafish egg infection assays were used to evaluate the biofilm-forming activity of DST659 and DST693 genotypes. Medical records of the patients infected by these two genotypes were retrospectively reviewed. High biofilm-forming activity of DST659 isolates was demonstrated in vitro and further proved with the zebrafish egg infection model, which showed a positive correlation between the biofilm-forming extent on chorion and the in vitro biofilm activity. Moreover, significantly less embryos survived when infected with DST659 isolates than those with DST693 (1.25% vs. 11.43%), and the high-biofilm subset of DST659 showed a greater reduction in survival of embryos at 48 h post-infection than the low biofilm subset (0 vs. 1.92%). Patients infected with DST659 seemed to survive slightly worse than those infected with DST693, although the difference was insignificant. It is noteworthy that DST659-infected patients were associated with a higher incidence in renal insufficiency as compared to those with DST693, the low biofilm genotype. We suggest that a strong biofilm activity of DST659 contributed to a high mortality rate in zebrafish hosts and poor renal function in patients, as well as gaining the dominance in the northern Taiwan. PMID- 29325082 TI - Growth Parameters, Effect Measure Modification and the Association Between Vaccination and Early Childhood Hospitalization With Non-targeted Infections. PMID- 29325081 TI - Dissatisfaction with current integration reforms of health insurance schemes in China: are they a success and what matters? AB - Integration reforms have been piloted as key policies to address the fragmented health insurance system in China. They are also regarded as a better choice for realizing a Universal Basic Medical Insurance System (UBMIS). This study has attempted to explore the determinants that may affect respondents' dissatisfaction with the reforms. The aim is to provide evidence for more effective policy adjustment during the next round of nationwide integration reforms in China. A cross-sectional questionnaire survey was conducted in Ningbo, Chongqing and Heilongjiang from 2014 to 2015. A stratified cluster sampling method was adopted. A total of 1644 respondents, working in units related to health insurance, were selected. A multivariate logistic regression model was employed to identify any association between dissatisfaction and the features of the ongoing integration reforms of health insurance schemes. Overall, about 47.6% of the respondents reported dissatisfaction with the ongoing integration reforms. This high level of dissatisfaction was found to be associated with ineffective outcomes of the integration reforms in achieving management system improvement [odds ratio (OR) = 1.846], inequity reduction (OR = 1.464) and actual coverage expansion (OR = 1.350), as perceived by the respondents. Those who were satisfied with the previously separated health insurance schemes (OR = 0.643), and those who preferred other policy options for achieving a UBMIS (OR = 1.471) were more likely to report dissatisfaction with the current reforms. Higher expectations of the risk-pooling level (with ORs ranging from 1.361 to 1.661) also significantly contributed to dissatisfaction. Health insurance managers in China have conflicting opinions about the performance of piloted integration reforms. Many believe that these reforms have failed significantly to improve the management systems, narrow inequity and expand actual benefit coverage. Various strategies should be undertaken in order to address these issues, such as clarifying the administrative institution behind the merged schemes at the central level, unifying the insurance information network, developing consistent policies and bridging the differences in benefits among schemes and regions. PMID- 29325083 TI - Reply to Burgner, et al. PMID- 29325086 TI - A 60-Year-Old Man With Fever and Headache After a Near-Drowning Event. PMID- 29325084 TI - Metformin Use Reverses the Increased Mortality Associated With Diabetes Mellitus During Tuberculosis Treatment. AB - Background: The global type 2 diabetes mellitus (DM) epidemic threatens progress made in reducing tuberculosis (TB)-related mortality worldwide. Previous clinical studies have not fully evaluated potential confounding variables in addressing the impact of DM on TB treatment outcomes. The antidiabetic agent metformin regulates autophagy and may play a role as a host-directed therapeutic adjuvant to antitubercular treatment. Methods: We conducted a retrospective cohort study comprising patients aged >=13 years undergoing treatment for culture-confirmed, drug-susceptible pulmonary TB. We assessed the effect of DM on mortality during TB treatment and 2-month TB sputum-culture conversion. We also evaluated the effect of metformin use on survival during TB treatment. Results: Among 2416 patients undergoing TB treatment, after adjusting for age, sex, chronic kidney disease, cancer, hepatitis C, tobacco use, cavitary disease, and treatment adherence, patients with DM had 1.91 times higher odds (95% confidence interval [CI], 1.51-2.40) of death during TB treatment than patients without DM, and 1.72 (95% CI, 1.25-2.38) times higher odds of remaining culture-positive at 2 months. Metformin use in patients with DM was significantly associated with decreased mortality during TB treatment (hazard ratio, 0.56 [95% CI, .39-.82]), and metformin users had similar mortality as patients without DM. Conclusions: This study suggests that despite multiple potential confounding variables, DM poses an increased risk of adverse TB treatment outcomes. There was a significant association between metformin use and decreased mortality during TB treatment, suggesting a potential role for this agent as adjunctive, host-directed therapy. PMID- 29325087 TI - A 60-Year-Old Man With Fever and Headache After a Near-Drowning Event. PMID- 29325088 TI - The comet assay: ready for 30 more years. AB - During the last 30 years, the comet assay has become widely used for the measurement of DNA damage and repair in cells and tissues. A landmark achievement was reached in 2016 when the Organization for Economic Co-operation and Development adopted a comet assay guideline for in vivo testing of DNA strand breaks in animals. However, the comet assay has much more to offer than being an assay for testing DNA strand breaks in animal organs. The use of repair enzymes increases the range of DNA lesions that can be detected with the assay. It can also be modified to measure DNA repair activity. Still, despite the long-term use of the assay, there is a need for studies that assess the impact of variation in specific steps of the procedure. This is particularly important for the on-going efforts to decrease the variation between experiments and laboratories. The articles in this Special Issue of Mutagenesis cover important technical issues of the comet assay procedure, nanogenotoxicity and ionising radiation sensitivity on plant cells. The included biomonitoring studies have assessed seasonal variation and certain predictors for the basal level of DNA damage in white blood cells. Lastly, the comet assay has been used in studies on genotoxicity of environmental and occupational exposures in human biomonitoring studies and animal models. Overall, the articles in this Special Issue demonstrate the versatility of the comet assay and they hold promise that the assay is ready for the next 30 years. PMID- 29325089 TI - Trends and results of lung cancer surgery in Finland between 2004 and 2014. AB - OBJECTIVES: The aim of this study was to investigate the current trends and results of lung cancer surgery in Finland at the population level. METHODS: Three compulsory national registries provided the data on surgical treatment of lung cancer during 2004 and 2014. Outcomes of interest were all-cause mortality, population level surgical rates and frequencies of resections. The data were divided into 2 eras to analyse changes in treatment strategies and baseline characteristics: 2004-2009 and 2010-2014. RESULTS: A total of 3621 patients underwent lung resections for cancer during the study period. The mean age of the patients was 65.8 years. During the study period, the patients were older and Charlson comorbidity index score of the patients increased (P < 0.001 for both). Simultaneously, the rate of surgery (from 12.8% to 14.4%, P = 0.001) and the rate of video-assisted thoracoscopic surgery increased (from 7.3% to 31.9%, P < 0.001). The rate of pneumonectomy decreased from 12.7% to 7.5% (P < 0.001). Mortality was 2.3% at 30 days and 4.3% at 90 days without significant differences between eras. Overall survival was 85% at 1 year and 50.2% at 5 years. Long-term survival improved significantly during the study from 53% to 60.1% at 4 years (P < 0.001). CONCLUSIONS: This nationwide population-based study demonstrates an improvement in long-term outcome after lung cancer surgery despite an increasing age and comorbidity burden concomitantly with an increasing rate of surgery. This suggests that video-assisted thoracoscopic surgery can be offered to more patients with more comorbidities while still improving lung cancer survival. PMID- 29325090 TI - The 5 Ws of a gluten challenge for gluten-related disorders. AB - Gluten-related disorders (GRDs) are gradually emerging as epidemiologically relevant diseases, with a global prevalence estimated to be approximately 5% in the population. Conditions related to gluten ingestion include celiac disease (CD), wheat allergy (WA), and nonceliac gluten sensitivity (NCGS). Although mediated by different pathogenic pathways, these 3 conditions share similar clinical manifestations and can present a difficult differential diagnosis. The gluten challenge (GC) is an important diagnostic tool for GRDs, but there is great variability in regards to deciding which patients should be challenged, what amount of gluten should be used, what the GC duration should be, when and where the GC should occur, and, sometimes, why to conduct a GC. This review summarizes the current knowledge about the desirable characteristics of GCs in the 3 main GRDs following a 5 Ws approach-that is, the 5 main journalistic questions: who, what, when, where, why. The answers will help to determine the correct use of the GC in diagnosing GRDs. PMID- 29325091 TI - alpha-secretase ADAM10 physically interacts with beta-secretase BACE1 in neurons and regulates CHL1 proteolysis. AB - alpha-secretase and beta-secretase are known to compete for amyloid precursor protein (APP) processing and thus play a vital role in Alzheimer's disease pathogenesis. A disintegrin and metalloproteinase 10 (ADAM10) and beta-site APP cleaving enzyme 1 (BACE1) mediate the major activities of alpha-secretase and beta-secretase in brain and share various common substrates. However, whether they function separately or together is poorly understood. Here, we show that ADAM10 and BACE1 co-localize in the neurites of mouse primary neurons. Co immunoprecipitation and fluorescence resonance energy transfer analysis revealed that ADAM10 and BACE1 interact with each other under both endogenous and exogenous conditions. In addition, we found that ADAM10 enhances the proteolysis of neural cell adhesion molecule close homolog of L1 (CHL1) by BACE1. Further studies found that ADAM10-BACE1 interaction interfering peptide LT52 attenuates the regulation of ADAM10 on BACE1-mediated cleavage of CHL1. Our data indicate that ADAM10-BACE1 interaction regulates the proteolysis of some specific substrates and may play a potential role in brain function. PMID- 29325092 TI - Intravenous administration of scAAV9-Hexb normalizes lifespan and prevents pathology in Sandhoff disease mice. AB - Sandhoff disease (SD) is a rare inherited disorder caused by a deficiency of beta hexosaminidase activity which is fatal because no effective treatment is available. A mouse model of Hexb deficiency reproduces the key pathognomonic features of SD patients with severe ubiquitous lysosomal dysfunction, GM2 accumulation, neuroinflammation and neurodegeneration, culminating in death at 4 months. Here, we show that a single intravenous neonatal administration of a self complementary adeno-associated virus 9 vector (scAAV9) expressing the Hexb cDNA in SD mice is safe and sufficient to prevent disease development. Importantly, we demonstrate for the first time that this treatment results in a normal lifespan (over 700 days) and normalizes motor function assessed by a battery of behavioral tests, with scAAV9-treated SD mice being indistinguishable from wild-type littermates. Biochemical analyses in multiple tissues showed a significant increase in hexosaminidase A activity, which reached 10-15% of normal levels. AAV9 treatment was sufficient to prevent GM2 and GA2 storage almost completely in the cerebrum (less so in the cerebellum), as well as thalamic reactive gliosis and thalamocortical neuron loss in treated Hexb-/- mice. In summary, this study demonstrated a widespread protective effect throughout the entire CNS after a single intravenous administration of the scAAV9-Hexb vector to neonatal SD mice. PMID- 29325094 TI - Functional rescue of misfolding ABCA3 mutations by small molecular correctors. AB - Adenosine triphosphate (ATP)-binding cassette subfamily A member 3 (ABCA3), a phospholipid transporter in lung lamellar bodies (LBs), is essential for the assembly of pulmonary surfactant and LB biogenesis. Mutations in the ABCA3 gene are an important genetic cause for respiratory distress syndrome in neonates and interstitial lung disease in children and adults, for which there is currently no cure. The aim of this study was to prove that disease causing misfolding ABCA3 mutations can be corrected in vitro and to investigate available options for correction. We stably expressed hemagglutinin (HA)-tagged wild-type ABCA3 or variants p.Q215K, p.M760R, p.A1046E, p.K1388N or p.G1421R in A549 cells and assessed correction by quantitation of ABCA3 processing products, their intracellular localization, resembling LB morphological integrity and analysis of functional transport activity. We showed that all mutant proteins except for M760R ABCA3 were rescued by the bithiazole correctors C13 and C17. These variants were also corrected by the chemical chaperone trimethylamine N-oxide and by low temperature. The identification of lead molecules C13 and C17 is an important step toward pharmacotherapy of ABCA3 misfolding-induced lung disease. PMID- 29325095 TI - Multiple gout tophi. PMID- 29325093 TI - A comprehensive Caenorhabditis elegans N-glycan shotgun array. AB - Here we present a Caenorhabditis elegans N-glycan shotgun array. This nematode serves as a model organism for many areas of biology including but not limited to tissue development, host-pathogen interactions, innate immunity, and genetics. Caenorhabditis elegans N-glycans contain structural motifs that are also found in other nematodes as well as trematodes and lepidopteran species. Glycan binding toxins that interact with C. elegans glycoconjugates also do so with some agriculturally relevant species, such as Haemonchus contortus, Ascaris suum, Oesophagostomum dentatum and Trichoplusia ni. This situation implies that protein carbohydrate interactions seen with C. elegans glycans may also occur in other species with related glycan structures. Therefore, this array may be useful to study these relationships in other nematodes as well as trematode and insect species. The array contains 134 distinct glycomers spanning a wide range of C. elegans N-glycans including the subclasses high mannose, pauci mannose, high fucose, mammalian-like complex and phosphorylcholine substituted forms. The glycans presented on the array have been characterized by two-dimensional separation, ion trap mass spectrometry, and lectin affinity. High fucose glycans were well represented and contain many novel core structures found in C. elegans as well as other species. This array should serve as an investigative platform for carbohydrate binding proteins that interact with N-glycans of C. elegans and over a range of organisms that contain glycan motifs conserved with this nematode. PMID- 29325098 TI - High Level of Neutrophil Extracellular Traps Correlates With Poor Prognosis of Severe Influenza A Infection. AB - Background: Most patients with severe infection with influenza A virus (IAV) progress to acute respiratory distress syndrome and even multiple organ dysfunction syndrome (MODS). Neutrophil extracellular traps (NETs) can be induced by pathogens and are responsible for immune tissue damage. We conducted a prospective study on the production and effects of NETs in H7N9 and H1N1 patients. Methods: We investigated NET production in plasma and supernatant of cultured neutrophils by measuring cell-free deoxyribonucleic acid (DNA) and myeloperoxidase (MPO)-DNA complexes with PicoGreen dye and enzyme-linked immunosorbent assay methods, respectively. We also observed NET structure by immunofluorescence staining. Results: We found that patients with severe influenza showed elevated plasma NET level on the day of admission. Neutrophils from these patients showed higher capacity to release MPO-DNA complex in response to interleukin-8 or lipopolysaccharide stimulation. We also found that NETs from H7N9 and H1N1 patients increased the permeability of alveolar epithelial cells, and, consequently, NET production was positively correlated with acute physiology and chronic health evaluation (APACHE) II score and MODS. Conclusions: These data indicate that high level of NETs contributes to lung injury and is correlated with severity of disease. Thus, NETs might be a key factor to predict the poor prognosis in IAV patients. PMID- 29325100 TI - The path to becoming more efficacious: modern perspectives in the surgical treatment of atrial fibrillation. PMID- 29325099 TI - Quantitative survey on health and violence endured by refugees during their journey and in Calais, France. AB - Background: In 2015, more than 1 million refugees arrived in Europe. During their travels, refugees often face harsh conditions, violence and torture in transit countries, but there is a lack of quantitative evidence on their experiences. We present the results of a retrospective survey among refugees in the 'Jungle' of Calais, France, to document their health problems and the violence they endured during their journeys. Methods: We conducted a cross-sectional population-based survey in November and December 2015. The sample size was set at 402 individuals, and geospatial simple random sampling was used. We collected data on demographics, routes travelled, health status, violence and future plans. Results: Departures from the country of origin increased beginning in September 2015. Sixty-one percent of respondents reported having at least one health problem, especially while in Calais. Overall, 65.6% (95% CI 60.3-70.6) experienced at least one violent event en route; 81.5% of refugees wanted to go to the UK. Conclusions: This first quantitative survey conducted among refugees in Europe provides important socio-demographic data on refugees living in Calais and describes the high rate of violence they encountered during their journeys. Similar documentation should be repeated throughout Europe in order to better respond to the needs of this vulnerable population. PMID- 29325097 TI - Barriers to health care services for migrants living with HIV in Spain. AB - Background: In Spain, migrants are disproportionately affected by HIV and experience high rates of late diagnosis. We investigated barriers to health care access among migrants living with HIV (MLWH) in Spain. Methods: Cross sectional electronic survey of 765 adult HIV-positive migrants recruited within 18 health care settings between July 2013 and July 2015. We collected epidemiological, demographic, behavioral and clinical data. We estimated the prevalence and risk factors of self-reported barriers to health care using multivariable logistic regression. Results: Of those surveyed, 672 (88%) had information on health care access barriers: 23% were women, 63% from Latin America and Caribbean, 14% from Sub-Saharan Africa and 15% had an irregular immigration status. Men were more likely to report barriers than women (24% vs. 14%, P = 0.009). The main barriers were: lengthy waiting times for an appointment (9%) or in the clinic (7%) and lack of a health card (7%). Having an irregular immigration status was a risk factor for experiencing barriers for both men (OR: (4.0 [95%CI: 2.2-7.2]) and women (OR: 10.5 [95%CI: 3.1-34.8]). Men who experienced racial stigma (OR: 3.1 [95%CI: 1.9-5.1]) or food insecurity (OR: 2.1 [95%CI: 1.2-3.4]) were more likely to report barriers. Women who delayed treatment due to medication costs (6.3 [95%CI: 1.3-30.8]) or had a university degree (OR: 5.8 [95%CI: 1.3-25.1]) were more likely to report barriers. Conclusion: Health care barriers were present in one in five5 MLWH, were more common in men and were associated to legal entitlement to access care, perceived stigma and financial constraints. PMID- 29325096 TI - Genetic Determinants of Circulating Estrogen Levels and Evidence of a Causal Effect of Estradiol on Bone Density in Men. AB - Context: Serum estradiol (E2) and estrone (E1) levels exhibit substantial heritability. Objective: To investigate the genetic regulation of serum E2 and E1 in men. Design, Setting, and Participants: Genome-wide association study in 11,097 men of European origin from nine epidemiological cohorts. Main Outcome Measures: Genetic determinants of serum E2 and E1 levels. Results: Variants in/near CYP19A1 demonstrated the strongest evidence for association with E2, resolving to three independent signals. Two additional independent signals were found on the X chromosome; FAMily with sequence similarity 9, member B (FAM9B), rs5934505 (P = 3.4 * 10-8) and Xq27.3, rs5951794 (P = 3.1 * 10-10). E1 signals were found in CYP19A1 (rs2899472, P = 5.5 * 10-23), in Tripartite motif containing 4 (TRIM4; rs17277546, P = 5.8 * 10-14), and CYP11B1/B2 (rs10093796, P = 1.2 * 10-8). E2 signals in CYP19A1 and FAM9B were associated with bone mineral density (BMD). Mendelian randomization analysis suggested a causal effect of serum E2 on BMD in men. A 1 pg/mL genetically increased E2 was associated with a 0.048 standard deviation increase in lumbar spine BMD (P = 2.8 * 10-12). In men and women combined, CYP19A1 alleles associated with higher E2 levels were associated with lower degrees of insulin resistance. Conclusions: Our findings confirm that CYP19A1 is an important genetic regulator of E2 and E1 levels and strengthen the causal importance of E2 for bone health in men. We also report two independent loci on the X-chromosome for E2, and one locus each in TRIM4 and CYP11B1/B2, for E1. PMID- 29325101 TI - Fauna, Ecological Characteristics, and Checklist of the Mosquitoes in Mazandaran Province, Northern Iran. AB - Mosquitoes are important vectors of human and animal diseases. This study updates current knowledge on fauna, dominance, and distribution of mosquitoes in Mazandaran Province, Northern Iran, to inform disease control effort. Larval collections, using standard dippers or droppers, and adult collections, using total catches, shelter pits, CDC light traps, and human landing catches, were performed monthly in 30 villages across 16 counties, from May to December 2014. Ovitraps, baited with hay infusion as oviposition attractants or stimulants for Aedes (Stegomyia) mosquitoes, were installed in each village and inspected weekly for eggs. Lactophenol and Berlese media were used for preserving and mounting specimens. Overall, 36,024 mosquito specimens (19,840 larvae and 16,184 adults) belonging to 4 genera and 20 species were morphologically identified. The dominance and distribution indices showed that Culex pipiens s.s. was the eudominant species with a constant distribution of larvae (D = 69.07%, C = 100%) and adults (D = 31.86%, C = 100%), followed by Cx tritaeniorhynchus (D = 38.14%, C = 100%) and Anopheles maculipennis s.l. (D = 11.05%, C = 100%) as adults. Aedes vexans was the dominant (7.85%) species, but it had a sporadic (20%) distribution. Culex torrentium and Culiseta morsitans were added as the new species to the checklist of mosquitoes in Mazandaran Province. Due to the potential role, Cx. pipiens s.s. as a vector of various pathogens, further ecological studies are recommended. PMID- 29325103 TI - Twenty-year experience with stentless biological aortic valve and root replacement: informing patients of risks and benefits. AB - OBJECTIVES: The aim of this study was to provide predictive data on the performance of the Freestyle stentless bioprosthesis that can be used to support and improve the shared decision-making process of prosthetic valve choice for aortic valve replacement. METHODS: Between 1993 and 2014, 604 patients received the Freestyle stentless bioprosthesis (143 subcoronary, 58 root inclusion and 403 full-root replacement). Perioperative data were collected retrospectively, and follow-up data were collected prospectively from 2015. Follow-up was 96% complete (median 4.3 years), with 114 (19%) patients having a follow-up period exceeding 10 years. A competing risks regression model was developed to predict the probability of mortality, structural valve deterioration (SVD) and reoperation for other causes than SVD. RESULTS: The median age of patients was 64 years, 91 (15%) patients had undergone previous aortic valve replacement and 351 (58%) underwent concomitant procedures. The 15-year probability of SVD, reoperation for other causes and death were 16.9%, 8.1% and 47.7%, respectively. Linearized occurrence rates for prosthesis endocarditis, thromboembolic events and bleeding were 0.5%, 0.9% and 0.1% per patient-year, respectively. The constructed predictive model, including age, renal function and implantation technique as significant covariates, had good to fair predictive performance up to 19 years. CONCLUSIONS: The Freestyle stentless bioprosthesis is an efficient prosthesis for aortic valve replacement or root replacement, with low incidences of SVD and valve-related events at long-term follow-up. The predictive model designed in this study can be used to fully inform patients about their expected individual trajectory after implantation of this prosthesis. This improves the shared decision-making process between patients and clinicians. PMID- 29325102 TI - Elevated Proportions of Deleterious Genetic Variation in Domestic Animals and Plants. AB - A fraction of genetic variants segregating in any population are deleterious, which negatively impacts individual fitness. The domestication of animals and plants is associated with population bottlenecks and artificial selection, which are predicted to increase the proportion of deleterious variants. However, the extent to which this is a general feature of domestic species is unclear. Here, we examine the effects of domestication on the prevalence of deleterious variation using pooled whole-genome resequencing data from five domestic animal species (dog, pig, rabbit, chicken, and silkworm) and two domestic plant species (rice and soybean) compared with their wild ancestors. We find significantly reduced genetic variation and increased proportion of nonsynonymous amino acid changes in all but one of the domestic species. These differences are observable across a range of allele frequencies, both common and rare. We find proportionally more single nucleotide polymorphisms in highly conserved elements in domestic species and a tendency for domestic species to harbor a higher proportion of changes classified as damaging. Our findings most likely reflect an increased incidence of deleterious variants in domestic species, which is most likely attributable to population bottlenecks that lead to a reduction in the efficacy of selection. An exception to this pattern is displayed by European domestic pigs, which do not show traces of a strong population bottleneck and probably continued to exchange genes with wild boar populations after domestication. The results presented here indicate that an elevated proportion of deleterious variants is a common, but not ubiquitous, feature of domestic species. PMID- 29325105 TI - Predictors of Secondary Role Strains Among Spousal Caregivers of Older Adults With Functional Disability. AB - Background and Objectives: Aging spouses commonly care for a partner with functional disability, but little is known about how spousal caregiving may impact different life domains. This study evaluated how caregiving characteristics are associated with secondary role strains among spousal caregivers. Research Design and Methods: This cross-sectional study examined 367 spousal caregivers and their partners from the 2011 National Health and Aging Trends Study and National Study of Caregiving. Hierarchical regressions were estimated to determine how caregiver background factors (sociodemographics, health conditions) along with primary objective (care activities, care recipient health conditions, and dementia status) and subjective (emotional caregiving difficulties, role overload) stressors are linked to care-related valued activity restriction, negative caregiving relationship quality, and care-related family disagreements. Gender differences were considered. Results: After accounting for all predictors, older caregivers and caregivers providing more help with activities of daily living and health system interactions (e.g., scheduling appointments) were more likely to report activity restriction, whereas caregivers with more emotional difficulties reported higher negative caregiving relationship quality. Role overload was positively associated with all three secondary strains. For husbands only, caring for a partner with more chronic conditions was linked to higher negative caregiving relationship quality and caring for a partner with dementia was associated with a greater likelihood of family disagreements. Discussion and Implications: Secondary role strains may develop through similar and unique pathways for caregiving wives and husbands. Further research is needed to identify those who could benefit from support in managing their care responsibilities alongside other life areas. PMID- 29325104 TI - Eukaryotic translational termination efficiency is influenced by the 3' nucleotides within the ribosomal mRNA channel. AB - When a stop codon is at the 80S ribosomal A site, there are six nucleotides (+4 to +9) downstream that are inferred to be occupying the mRNA channel. We examined the influence of these downstream nucleotides on translation termination success or failure in mammalian cells at the three stop codons. The expected hierarchy in the intrinsic fidelity of the stop codons (UAA>UAG>>UGA) was observed, with highly influential effects on termination readthrough mediated by nucleotides at position +4 and position +8. A more complex influence was observed from the nucleotides at positions +5 and +6. The weakest termination contexts were most affected by increases or decreases in the concentration of the decoding release factor (eRF1), indicating that eRF1 binding to these signals was rate-limiting. When termination efficiency was significantly reduced by cognate suppressor tRNAs, the observed influence of downstream nucleotides was maintained. There was a positive correlation between experimentally measured signal strength and frequency of the signal in eukaryotic genomes, particularly in Saccharomyces cerevisiae and Drosophila melanogaster. We propose that termination efficiency is not only influenced by interrogation of the stop signal directly by the release factor, but also by downstream ribosomal interactions with the mRNA nucleotides in the entry channel. PMID- 29325106 TI - Transcriptomic profiling of interacting nasal staphylococci species reveals global changes in gene and non-coding RNA expression. AB - Interspecies interactions between bacterial pathogens and the commensal microbiota can influence disease outcome. In the nasal cavities, Staphylococcus epidermidis has been shown to be a determining factor for Staphylococcus aureus colonization and biofilm formation. However, the interaction between S. epidermidis and S. aureus has mainly been described by phenotypic analysis, and little is known about how this interaction modulates gene expression. This study aimed to determine the interactome of nasal S. aureus and S. epidermidis isolates to understand the molecular effect of interaction. After whole-genome sequencing of two nasal staphylococcal isolates, an agar-based RNA sequencing setup was utilized to identify interaction-induced transcriptional alterations in surface associated populations. Our results revealed differential expression of several virulence genes in both species. We also identified putative non-coding RNAs (ncRNAs) and, interestingly, detected a putative ncRNA transcribed antisense to esp, the serine protease of S. epidermidis, that has previously been shown to inhibit nasal colonization of S. aureus. In our study, the gene encoding Esp and the antisense ncRNA are both downregulated during interaction with S. aureus. Our findings contribute to a better understanding of pathogen physiology in the context of interactions with the commensal microbiota, and may provide targets for future therapeutics. PMID- 29325107 TI - 2'-O-(2-Methoxyethyl) Nucleosides Are Not Phosphorylated or Incorporated Into the Genome of Human Lymphoblastoid TK6 Cells. AB - Nucleoside analogs with 2'-modified sugar moieties are often used to improve the RNA target affinity and nuclease resistance of therapeutic oligonucleotides in preclinical and clinical development. Despite their enhanced nuclease resistance, oligonucleotides could slowly degrade releasing nucleoside analogs that have the potential to become phosphorylated and incorporated into cellular DNA and RNA. For the first time, the phosphorylation and DNA/RNA incorporation of 2'-O-(2 methoxyethyl) (2'-O-MOE) nucleoside analogs have been investigated. Using liquid chromatography/tandem mass spectrometry, we showed that enzymes in the nucleotide salvage pathway including deoxycytidine kinase (dCK) and thymidine kinase (TK1) displayed poor reactivity toward 2'-O-MOE nucleoside analogs. On the other hand, 2'-fluoro (F) nucleosides, regardless of the nucleobase, were efficiently phosphorylated to their monophosphate forms by dCK and TK1. Consistent with their efficient phosphorylation by dCK and TK1, 2'-F nucleoside analogs were incorporated into cellular DNA and RNA while no incorporation was detected with 2'-O-MOE nucleoside analogs. In conclusion, these data suggest that the inability of dCK and TK1 to create the monophosphates of 2'-O-MOE nucleoside analogs reduces the risk of their incorporation into cellular DNA and RNA. PMID- 29325109 TI - Estimating adolescent sleep need using dose-response modeling. AB - Study Objectives: This study will (1) estimate the nightly sleep need of human adolescents, (2) determine the time course and severity of sleep-related deficits when sleep is reduced below this optimal quantity, and (3) determine whether sleep restriction perturbs the circadian system as well as the sleep homeostat. Methods: Thirty-four adolescents aged 15 to 17 years spent 10 days and nine nights in the sleep laboratory. Between two baseline nights and two recovery nights with 10 hours' time in bed (TIB) per night, participants experienced either severe sleep restriction (5-hour TIB), moderate sleep restriction (7.5 hour TIB), or no sleep restriction (10-hour TIB) for five nights. A 10-minute psychomotor vigilance task (PVT; lapse = response after 500 ms) and the Karolinska Sleepiness Scale were administered every 3 hours during wake. Salivary dim-light melatonin onset was calculated at baseline and after four nights of each sleep dose to estimate circadian phase. Results: Dose-dependent deficits to sleep duration, circadian phase timing, lapses of attention, and subjective sleepiness occurred. Less TIB resulted in less sleep, more lapses of attention, greater subjective sleepiness, and larger circadian phase delays. Sleep need estimated from 10-hour TIB sleep opportunities was approximately 9 hours, while modeling PVT lapse data suggested that 9.35 hours of sleep is needed to maintain optimal sustained attention performance. Conclusions: Sleep restriction perturbs homeostatic and circadian systems, leading to dose-dependent deficits to sustained attention and sleepiness. Adolescents require more sleep for optimal functioning than typically obtained. PMID- 29325108 TI - Aging is associated with a prefrontal lateral-medial shift during picture-induced negative affect. AB - The capacity to adaptively respond to negative emotion is in part dependent upon lateral areas of the prefrontal cortex (PFC). Lateral PFC areas are particularly susceptible to age-related atrophy, which affects executive function (EF). We used structural and functional magnetic resonance imaging (MRI) to test the hypothesis that older age is associated with greater medial PFC engagement during processing of negative information, and that this engagement is dependent upon the integrity of grey matter structure in lateral PFC as well as EF. Participants (n = 64, 38-79 years) viewed negative and neutral scenes while in the scanner, and completed cognitive tests as part of a larger study. Grey matter probability (GMP) was computed to index grey matter integrity. FMRI data demonstrated less activity in the left ventrolateral PFC (VLPFC) and greater ventromedial PFC (VMPFC) activity with increasing age during negative-picture viewing. Age did not correlate with amygdala responding. GMP in VLPFC and EF were negatively associated with VMPFC activity. We conclude that this change from lateral to medial PFC engagement in response to picture-induced negative affect reflects decreased reliance on executive function-related processes, possibly associated with reduced grey matter in lateral PFC, with advancing age to maintain emotional functioning. PMID- 29325110 TI - Impact of genetic risk loci for multiple sclerosis on expression of proximal genes in patients. AB - Despite advancements in genetic studies, it is difficult to understand and characterize the functional relevance of disease-associated genetic variants, especially in the context of a complex multifactorial disease such as multiple sclerosis (MS). As a large proportion of expression quantitative trait loci (eQTLs) are context-specific, we performed RNA-Seq in peripheral blood mononuclear cells from MS patients (n = 145) to identify eQTLs in regions centered on 109 MS risk single nucleotide polymorphisms and 7 associated human leukocyte antigen variants. We identified 77 statistically significant eQTL associations, including pseudogenes and non-coding RNAs. Thirty-eight out of 40 testable eQTL effects were colocalized with the disease association signal. As many eQTLs are tissue specific, we aimed to detail their significance in different cell types. Approximately 70% of the eQTLs were replicated and characterized in at least one major peripheral blood mononuclear cell-derived cell type. Furthermore, 40% of eQTLs were found to be more pronounced in MS patients compared with non-inflammatory neurological diseases patients. In addition, we found two single nucleotide polymorphisms to be significantly associated with the proportions of three different cell types. Mapping to enhancer histone marks and predicted transcription factor binding sites added additional functional evidence for eight eQTL regions. As an example, we found that rs71624119, shared with three other autoimmune diseases and located in a primed enhancer (H3K4me1) with potential binding for STAT transcription factors, significantly associates with ANKRD55 expression. This study provides many novel and validated targets for future functional characterization of MS and other diseases. PMID- 29325111 TI - Risk of coronary heart disease among smokeless tobacco users: results of systematic review and meta-analysis of global data. AB - Background: Use of smokeless tobacco (SLT) products has been linked to multiple adverse effects, especially precancer and cancer of oral cavity. However, the association of SLT use with risk of coronary heart disease (CHD) is shrouded with controversy due to conflicting results in the literature. The present meta analysis aimed to evaluate the risk of CHD among adult ever-users of SLT products along with subgroup analysis. Methods: The analysis included studies retrieved from a systematic literature search for published articles assessing risk of CHD with SLT use. Two authors independently extracted risk estimates and study characteristics of the included studies. Summary relative risks were estimated using the random-effect model. Results: Twenty studies from four WHO regions were included in the analysis. The summary risk of CHD in SLT users was not significantly positive (1.05, 95% CI 0.96-1.15) although a higher risk of fatal CHD was seen (1.10, 95% CI 1.00-1.20). The risk was significant for users in European Region (1.30, 95% CI 1.14-1.47). The results remained unchanged even after strict adjustment for smoking. Product-wise analysis revealed a significant positive association of fatal CHD with snus/ snuff use (1.37, 95% CI 1.14-1.61). The SLT-attributable fraction of fatal CHD was calculated to be 0.3%, highest being for European region (5%). Conclusion: A significant positive association was detected between SLT use and risk of fatal CHD, especially for European users and those consuming snus/ snuff. In view of the positive association even after strict adjustment for smoking, these results underscore the need for inclusion of cessation efforts for smokeless tobacco in addition to smoking for control of fatal cardiovascular diseases. Implications: The present meta-analysis demonstrates a global perspective of association between coronary heart disease (CHD) and use of smokeless tobacco (SLT), especially for fatal cardiac events, even with strict adjustment for smoking. There appears to be some difference in this effect based on the type of SLT product used. These results highlight the independent deleterious effect of SLT products on the outcome of CHD and might help to resolve the long-standing controversy regarding the association of SLT with the risk of CHD. Hence, we propose that in addition to smoking, cessation efforts should be directed towards SLT products as well, for control of cardiovascular diseases. PMID- 29325112 TI - Autologous Haematopoietic Stem Cell Transplantation (AHSCT) in Severe Crohn's Disease: A Review on Behalf of ECCO and EBMT. AB - Despite the major recent progress in the treatment of Crohn's disease [CD], there is a subset of patients in whom the disease runs an aggressive course with progressive tissue damage requiring early and repeated surgical management. Increasing evidence supports sustained and profound improvement in gastrointestinal parameters and quality of life following high-dose immunosuppressive therapy and autologous haematopoietic stem cell transplantation [AHSCT] compared to standard therapy in this context. In addition, international transplant registry data reflect the use of AHSCT in CD outside of trials in selected patients. However, AHSCT may be associated with significant treatment related complications with risk of transplant-related mortality. In a joint initiative, the European Crohn's and Colitis Organisation [ECCO] and the European Society for Blood and Marrow Transplantation [EBMT] have produced a state-of-the art review of the rationale, evaluation, patient selection, stem cell mobilization and transplant procedures and long-term follow up. Given the unique spectrum of issues, we recommend that AHSCT should only be performed in experienced centres with expertise in both haematological and gastroenterological aspects of the procedure. Where possible, patients should be enrolled on clinical trials and data registered centrally. Future development should be coordinated at both national and international levels. PMID- 29325113 TI - Vitality club: a proof-of-principle of peer coaching for daily physical activity by older adults. AB - Many age-related diseases can be prevented or delayed by daily physical activity. Unfortunately, many older adults do not perform physical activity at the recommended level. Professional interventions do not reach large numbers of older adults for a long period of time. We studied a peer-coach intervention, in which older adults coach each other, that increased daily physical activity of community dwelling older adults for over 6 years. We studied the format and effects of this peer coach intervention for possible future implementation elsewhere. Through interviews and participatory observation we studied the format of the intervention. We also used a questionnaire (n = 55) and collected 6-min walk test data (n = 261) from 2014 to 2016 to determine the motivations of participants and effects of the intervention on health, well-being and physical capacity. Vitality Club is a self-sustainable group of older adults that gather every weekday to exercise coached by an older adult. Members attend on average 2.5 days per week and retention rate is 77.5% after 6 years. The members perceived improvements in several health measures. In line with this, the 6-min walk test results of members of this Vitality Club improved with 21.7 meters per year, compared with the decline of 2-7 meters per year in the general population. This Vitality Club is successful in durably engaging its members in physical activity. The members perceive improvements in health that are in line with improvements in a physical function test. Because of the self-sustainable character of the intervention, peer coaching has the potential to be scaled up at low cost and increase physical activity in the increasing number of older adults. PMID- 29325114 TI - Distribution of pines in the Iberian Peninsula agrees with species differences in foliage frost tolerance, not with vulnerability to freezing-induced xylem embolism. AB - Drought and frosts are major determinants of plant functioning and distribution. Both stresses can cause xylem embolism and foliage damage. The objective of this study was to analyse if the distribution of six common pine species along latitudinal and altitudinal gradients in Europe is related to their interspecific differences in frost tolerance and to the physiological mechanisms underlying species-specific frost tolerance. We also evaluate if frost tolerance depends on plant water status. We studied survival to a range of freezing temperatures in 2 year-old plants and assessed the percentage loss of hydraulic conductivity (PLC) due xylem embolism formation and foliage damage determined by needle electrolyte leakage (EL) after a single frost cycle to -15 degrees C and over a range of predawn water potential (psipd) values. Species experiencing cold winters in their range (Pinus nigra J.F. Arnold, Pinus sylvestris L. and Pinus uncinata Raymond ex A. DC.) had the highest frost survival rates and lowest needle EL and soluble sugar (SS) concentration. In contrast, the pines inhabiting mild or cool winter locations (especially Pinus halepensis Mill. and Pinus pinea L. and, to a lesser extent, Pinus pinaster Ait.) had the lowest frost survival and highest needle EL and SS values. Freezing-induced PLC was very low and differences among species were not related to frost damage. Reduction in psipd decreased leaf frost damage in P. pinea and P. sylvestris, increased it in P. uncinata and had a neutral effect on the rest of the species. This study demonstrates that freezing temperatures are a major environmental driver for pine distribution and suggests that interspecific differences in leaf frost sensitivity rather than vulnerability to freezing-induced embolism or SS explain pine juvenile frost survival. PMID- 29325115 TI - Fast sleep spindle density is associated with rs4680 (Val108/158Met) genotype of catechol-O-methyltransferase (COMT). AB - Study Objectives: Sleep spindles are a hallmark of NREM stage 2 sleep. Fast sleep spindles correlate with cognitive functioning and are reduced in schizophrenia. Although spindles are highly genetically determined, distinct genetic mechanisms influencing sleep spindle activity have not been identified so far. Spindles are generated within a thalamocortical network. Dopaminergic neurotransmission modulates activity within this network and importantly depends on activity of catechol-O-methyltransferase (COMT). We aimed at testing whether the common functional rs4680 (Val108/158Met) polymorphism of COMT modulates fast spindle activity in healthy participants. Methods: In 150 healthy participants (93 women, 57 men; mean age 30.9 +/- 11.6 years) sleep spindle density was analyzed during the second of two nights of polysomnography. We investigated the effect of the COMT Val108/158Met genotype on fast spindle density in whole-night NREM sleep stages N2 and N3. Results: As predicted, higher Val allele dose correlates with reduced fast spindle density. Additional exploratory analysis of the effect of COMT genotype revealed that slow spindle density in heterozygote participants was lower than that of both homozygote groups. Morphological characteristics of fast and slow spindles did not show significant differences between genotypes. COMT genotype had also no significant effect on measures of general sleep quality. Conclusions: This is the first report of a distinct gene effect on sleep spindle density in humans. As variation in the COMT Val108/158Met polymorphism is associated with differential expression of fast spindles in healthy participants, genetically determined dopaminergic neurotransmission may modulate spindle oscillations during NREM sleep. Clinical Trial registration: DRKS00008902. PMID- 29325116 TI - Differential expression of antimicrobial peptides in corneal infection and regulation of antimicrobial peptides and reactive oxygen species by type III secretion system of Pseudomonas aeruginosa. AB - Pseudomonas aeruginosa is an opportunistic pathogen and is the major cause of corneal infection worldwide that secret several virulent toxins through its type III secretion system (T3SS). In defense against pathogenic insults, epithelial cells and macrophages express antimicrobial peptides (AMPs) that are essential components of host immune response. In this study, we have determined the expression of several AMPs in patients with P. aeruginosa corneal infection. We also used an in vitro model of infection using human corneal epithelial cells and macrophages to determine the gene expression of AMPs and cellular response to wild-type and T3SS mutant P. aeruginosa. We found differential expression of several AMPs in patient samples and also found that P. aeruginosa repress AMP expression in both epithelial cells and macrophages by its T3SS in vitro. It dampens AMP expression by causing delay in NF-kappaB, p38 and ERK activation and inhibits reactive oxygen species generation in these cells by its T3SS. Our study show the profile of AMPs expressed during P. aeruginosa keratitis and suggest the pivotal role of the T3SS in epithelial cells and macrophages during P. aeruginosa infection. PMID- 29325117 TI - Prospective Discrimination of Controllers From Progressors Early After Low-Dose Mycobacterium tuberculosis Infection of Cynomolgus Macaques using Blood RNA Signatures. AB - The cynomolgus macaque model of low-dose Mycobacterium tuberculosis infection recapitulates clinical aspects of human tuberculosis pathology, but it is unknown whether the 2 systems are sufficiently similar that host-based signatures of tuberculosis will be predictive across species. By blind prediction, we demonstrate that a subset of genes comprising a human signature for tuberculosis risk is simultaneously predictive in humans and macaques and prospectively discriminates progressor from controller animals 3-6 weeks after infection. Further analysis yielded a 3-gene signature involving PRDX2 that predicts tuberculosis progression in macaques 10 days after challenge, suggesting novel pathways that define protective responses to M. tuberculosis. PMID- 29325118 TI - Interactive effects of phosphorus, calcium, and phytase supplements on products of phytate degradation in the digestive tract of broiler chickens. AB - This study aimed to distinguish between the single and interactive effects of phosphorus (P), calcium (Ca), and phytase on products of phytate degradation, including the disappearance of myo-inositol (MI), P, Ca, and amino acids (AA) in different segments of the digestive tract in broiler chickens. Additionally, all dephosphorylation steps from myo-inositol 1,2,3,4,5,6-hexakis (dihydrogen phosphate) (InsP6) to MI were investigated in the digesta of the terminal ileum. Unsexed Ross 308 broiler chickens were allocated to 56 pens with 19 birds per pen, and assigned to one of 8 dietary treatments. The dietary treatments included diets without (P-, 4.1 g/kg DM) or with (P+, 6.9 g/kg DM) monosodium phosphate supplementation, without (Ca-, 6.2 g/kg DM) or with (Ca+, 10.3 g/kg DM) additional fine limestone supplementation, and without or with 1,500 FTU phytase/kg feed in a factorial design. Adding Ca or P had no effect on InsP6 disappearance in the crop when phytase was added. InsP6 disappearance up to the terminal ileum (P-Ca- 56%) was decreased in P+Ca- (40%), and even more so in P+Ca+ (21%), when no phytase was added. Adding phytase removed all effects of P and Ca (77 to 87%); however, P+Ca+ increased the concentrations of lower InsP esters and reduced free MI in the ileum, even in the presence of phytase. These results indicate that mineral supplements, especially P and Ca combined, reduce the efficacy of endogenous microbial or epithelial phosphatases. Supplementation with phytase increased, while supplementation with Ca decreased the concentration of MI in all segments of the digestive tract and in blood plasma, demonstrating the ability of broilers to fully degrade phytate and absorb released MI. While AA disappearance was not affected by P or Ca, or an interaction among P, Ca, and phytase, it increased with the addition of phytase by 2 to 6%. This demonstrates the potential of the phytase used to increase AA digestibility, likely independent of P and Ca supply. PMID- 29325119 TI - miR-96 is required for normal development of the auditory hindbrain. AB - The peripheral deafness gene Mir96 is expressed in both the cochlea and central auditory circuits. To investigate whether it plays a role in the auditory system beyond the cochlea, we characterized homozygous Dmdo/Dmdo mice with a point mutation in miR-96. Anatomical analysis demonstrated a significant decrease in volume of auditory nuclei in Dmdo/Dmdo mice. This decrease resulted from decreased cell size. Non-auditory structures in the brainstem of Dmdo/Dmdo mice or auditory nuclei of the congenital deaf Cldn14-/- mice revealed no such differences. Electrophysiological analysis in the medial nucleus of the trapezoid body (MNTB) showed that principal neurons fired preferentially multiple action potentials upon depolarization, in contrast to the single firing pattern prevalent in controls and Cldn14-/- mice. Immunohistochemistry identified significantly reduced expression of two predicted targets of the mutated miR-96, Kv1.6 and BK channel proteins, possibly contributing to the electrophysiological phenotype. Microscopic analysis of the Dmdo/Dmdo calyx of Held revealed a largely absent compartmentalized morphology, as judged by SV2-labeling. Furthermore, MNTB neurons from Dmdo/Dmdo mice displayed larger synaptic short-term depression, slower AMPA-receptor decay kinetics and a larger NMDA-receptor component, reflecting a less matured stage. Again, these synaptic differences were not present between controls and Cldn14-/- mice. Thus, deafness genes differentially affect the auditory brainstem. Furthermore, our study identifies miR-96 as an essential gene regulatory network element of the auditory system which is required for functional maturation in the peripheral and central auditory system alike. PMID- 29325120 TI - Strigolactone Biosynthesis Genes of Rice are Required for the Punctual Entry of Arbuscular Mycorrhizal Fungi into the Roots. AB - Arbuscular mycorrhiza (AM) is a mutualistic association between most plant species and the ancient fungal phylum Glomeromycota in roots, and it plays a key role in a plant's nutrient uptake from the soil. Roots synthesize strigolactones (SLs), derivatives of carotenoids, and exude them to induce energy metabolism and hyphal branching of AM fungi. Despite the well-documented roles of SLs in the pre symbiotic phase, little is known about the role of SLs in the process of root colonization. Here we show that the expansion of root colonization is suppressed in the mutants of rice (Oryza sativa) SL biosynthesis genes, carotenoid cleavage dioxygenase D10 and more severely in D17. Interestingly, most of the colonization process is normal, i.e. AM fungal hyphae approach the roots and cling around them, and epidermal penetration, arbuscule size, arbuscule number per hyphopodium and metabolic activity of the intraradical mycelium are not affected in d10 and d17 mutants. In contrast, hyphopodium formation is severely attenuated. Our observations establish the requirement for SL biosynthesis genes for efficient hyphopodium formation, suggesting that SLs are required in this process. Efficient hyphopodium formation is required for the punctual internalization of hyphae into roots and maintaining the expansion of colonization. PMID- 29325121 TI - Plasma 25-Hydroxyvitamin D and Mortality in Patients With Suspected Stable Angina Pectoris. AB - Context and Objective: Vitamin D status may affect cardiovascular disease (CVD) development and survival. We studied the relationship between concentrations of the circulating biomarker 25-hydroxyvitamin D (25OHD) and all-cause and cardiovascular mortality risk. Design, Setting, Participants, and Main Outcome Measures: 25OHD, the sum of 25-hydroxyvitamin D3 and 25-hydroxyvitamin D2, was analyzed in plasma samples from 4114 white patients suspected of having stable angina pectoris and was adjusted for seasonal variation. Hazard ratios (HRs) for all-cause and cardiovascular mortality were estimated by using multivariable Cox models with 25OHD as the main exposure variable, with adjustment for study site, age, sex, smoking, body mass index, estimated glomerular filtration rate, and systolic blood pressure. Results: A total of 895 (21.8%) deaths, including 407 (9.9%) from CVD causes, occurred during a mean +/- standard deviation follow-up of 11.9 +/- 3.0 years. Compared with the first 25OHD quartile, HRs in the second, third, and fourth quartiles were 0.64 [95% confidence interval (CI), 0.54 to 0.77], 0.56 (95% CI, 0.46 to 0.67), and 0.56 (95% CI, 0.46 to 0.67) for all-cause mortality and 0.70 (95% CI, 0.53 to 0.91), 0.60 (95% CI, 0.45 to 0.79), and 0.57 (95% CI, 0.43 to 0.75) for cardiovascular mortality, respectively. Threshold analysis demonstrated increased all-cause and CVD mortality in patients with 25OHD concentrations below ~42.5 nmol/L. Moreover, analysis suggested increased all-cause mortality at concentrations >100 nmol/L. Conclusion: Plasma 25OHD concentrations were inversely associated with cardiovascular mortality and nonlinearly (U-shaped) associated with all-cause mortality. PMID- 29325122 TI - LINEs Contribute to the Origins of Middle Bodies of SINEs besides 3' Tails. AB - Short interspersed elements (SINEs), which are nonautonomous transposable elements, require the transposition machinery of long interspersed elements (LINEs) to mobilize. SINEs are composed of two or more independently originating parts. The 5' region is called the "head" and is derived mainly from small RNAs, and the 3' region ("tail") originates from the 3' region of LINEs and is responsible for being recognized by counterpart LINE proteins. The origin of the middle "body" of SINEs is enigmatic, although significant sequence similarities among SINEs from very diverse species have been observed. Here, a systematic analysis of the similarities among SINEs and LINEs deposited on Repbase, a comprehensive database of eukaryotic repeat sequences was performed. Three primary findings are described: 1) The 5' regions of only two clades of LINEs, RTE and Vingi, were revealed to have contributed to the middle parts of SINEs; 2) The linkage of the 5' and 3' parts of LINEs can be lost due to occasional tail exchange of SINEs; and 3) The previously proposed Ceph-domain was revealed to be a fusion of a CORE-domain and a 5' part of RTE clade of LINE. Based on these findings, a hypothesis that the 5' parts of bipartite nonautonomous LINEs, which possess only the 5' and 3' regions of the original LINEs, can contribute to the undefined middle part of SINEs is proposed. PMID- 29325124 TI - Limited salt consumption reduces the incidence of chronic kidney disease: a modeling study. AB - Background: In addition to blood pressure and cardiovascular disease, high-salt intake has been associated with renal diseases. The aim of this study is to estimate the potential health impact of salt reduction on chronic kidney disease (CKD) and end-stage kidney disease (ESKD) in the Netherlands. Methods: We developed a dynamic population health modeling tool to estimate the health impact of salt reduction on CKD and ESKD. We used data from the PREVEND study and extrapolated that to the Dutch population aged 30-75 years. We estimated the potential health impact of salt reduction comparing the current situation with the health impact of the adherence to the recommended maximum salt intake of 6 g/d. Results: In the recommended maximum intake scenario, a cumulative reduction in CKD of 1.1% (N = 290 000; interquartile range (IQR) = 249 000) and in ESKD of 3.2% (N = 470; IQR = 5080) would occur over a period of 20 years. Conclusions: Our health impact estimation showed that health benefits on CKD might be achieved when salt intake is reduced to the recommended maximum intake of 6 g/d. PMID- 29325123 TI - Packaging of Dinoroseobacter shibae DNA into Gene Transfer Agent Particles Is Not Random. AB - Gene transfer agents (GTAs) are phage-like particles which contain a fragment of genomic DNA of the bacterial or archaeal producer and deliver this to a recipient cell. GTA gene clusters are present in the genomes of almost all marine Rhodobacteraceae (Roseobacters) and might be important contributors to horizontal gene transfer in the world's oceans. For all organisms studied so far, no obvious evidence of sequence specificity or other nonrandom process responsible for packaging genomic DNA into GTAs has been found. Here, we show that knock-out of an autoinducer synthase gene of Dinoroseobacter shibae resulted in overproduction and release of functional GTA particles (DsGTA). Next-generation sequencing of the 4.2-kb DNA fragments isolated from DsGTAs revealed that packaging was not random. DNA from low-GC conjugative plasmids but not from high-GC chromids was excluded from packaging. Seven chromosomal regions were strongly overrepresented in DNA isolated from DsGTA. These packaging peaks lacked identifiable conserved sequence motifs that might represent recognition sites for the GTA terminase complex. Low-GC regions of the chromosome, including the origin and terminus of replication, were underrepresented in DNA isolated from DsGTAs. DNA methylation reduced packaging frequency while the level of gene expression had no influence. Chromosomal regions found to be over- and underrepresented in DsGTA-DNA were regularly spaced. We propose that a "headful" type of packaging is initiated at the sites of coverage peaks and, after linearization of the chromosomal DNA, proceeds in both directions from the initiation site. GC-content, DNA modifications, and chromatin structure might influence at which sides GTA packaging can be initiated. PMID- 29325125 TI - Age, phosphorus, and 25-hydroxycholecalciferol regulate mRNA expression of vitamin D receptor and sodium-phosphate cotransporter in the small intestine of broiler chickens. AB - Four experiments were conducted in this study. Experiment 1 was carried out to examine mRNA expressions of nuclear vitamin D receptor (nVDR), membrane vitamin D receptor (mVDR), and type IIb sodium-phosphate cotransporter (NaPi-IIb) in the small intestine of broiler chickens. Experiments 2, 3, and 4 were implemented to evaluate effects of age, non-phytate phosphorus (NPP), and 25 hydroxycholecalciferol (25-OH-D3) on mRNA expressions of nVDR, mVDR, and NaPi-IIb in the duodenum of chickens. Results showed that mRNA expression levels of nVDR and NaPi-IIb were highest in the duodenum of 21-day-old broilers, lower in the jejunum, and lowest in the ileum. By contrast, no differences in mRNA expression levels of mVDR were detected among the duodenum, jejunum, and ileum. Age quadratically affected mRNA expressions of nVDR, mVDR, and NaPi-IIb in the duodenum and 25-hydroxylase in the liver of 7- to 42-day-old broilers, with the highest levels observed at 21 d of age. By contrast, age linearly decreased mRNA expression level of 1alpha-hydroxylase in kidneys. Dietary NPP levels quadratically affected mRNA expression levels of nVDR and mVDR in the duodenum and 25-hydroxylase in the liver of 21-day-old broilers. The highest mRNA expression levels of nVDR and mVDR and lowest mRNA level of 25-hydroxylase were observed at 0.55% NPP. mRNA expression level of NaPi-IIb linearly declined when dietary NPP levels increased from 0.25 to 0.65%. Addition of 12.5 MUg/kg of 25-OH D3 increased mRNA expression level of 1alpha-hydroxylase in kidneys and those of nVDR, mVDR, and NaPi-IIb in the duodenum of broilers compared with birds fed the diet without 25-OH-D3. These data indicate that mRNA expressions of nVDR and NaPi IIb are highest in the duodenum, and the greatest mRNA levels of nVDR, mVDR, and NaPi-IIb are observed at 21 d of age. Dietary NPP levels quadratically increase mRNA expressions of nVDR and mVDR but linearly decrease NaPi-IIb mRNA level. 25 OH-D3 up-regulates the above gene transcription. PMID- 29325127 TI - Inhibiting trophoblast PAR-1 overexpression suppresses sFlt-1-induced anti angiogenesis and abnormal vascular remodeling: a possible therapeutic approach for preeclampsia. AB - STUDY QUESTION: Is it possible to improve vascular remodeling by inhibiting the excessive expression of protease-activated receptor 1 (PAR-1) in trophoblast of abnormal placenta? SUMMARY ANSWER: Inhibition of trophoblast PAR-1 overexpression may promote placental angiogenesis and vascular remodeling, offering an alternative therapeutic approach for preeclampsia. WHAT IS KNOWN ALREADY: PAR-1 is high-affinity receptor of thrombin. Thrombin increases sFlt-1 secretion in trophoblast via the activation of PAR-1. It is reported that the expression of both thrombin and PAR-1 expression are increased in placentas of preeclampsia patients compared with normal placentas. STUDY DESIGN, SIZE, DURATION: Trophoblast cells were transfected with PAR-1 short hairpin RNA (shRNA) or PAR-1 overexpression plasmids in vitro. Tube formation assays and a villus-decidua co culture system were used to study the effect of PAR-1 inhibition on placental angiogenesis and vascular remodeling, respectively. Placentas from rats with preeclampsia were transfected with PAR-1 shRNA to confirm the effect of inhibiting PAR-1 overexpression in placenta. PARTICIPANTS/MATERIALS, SETTING, METHODS: The trophoblast cell line HTR-8/SVneo was transfected with PAR-1 shRNA or PAR-1 overexpression plasmids. After 48 h, supernatant was collected and the level of sFlt-1 secretion was measured by ELISA. Human umbilical cord epithelial cells and a villus-decidua co-culture system were treated with conditioned media to study the effect of PAR-1 inhibition on tube formation and villi vascular remodeling. A preeclampsia rat model was established by intraperitoneal injection of L-NAME. Plasmids were injected into the placenta of the preeclampsia rats and systolic blood pressure was measured on Days 15 and 19. The effect of different treatments was evaluated by proteinuria, placental weights, fetal weights and fetal numbers in study and control groups. The level of serum sFlt-1 in rats with preeclampsia was also measured. Changes in the placenta microvessels were studied by histopathological staining. MAIN RESULTS AND THE ROLE OF CHANCE: PAR-1 shRNA inhibited PAR-1 expression and significantly suppressed sFlt-1 expression in trophoblasts. Soluble Flt-1 level in the supernatant was suppressed by PAR-1 inhibition plasmid transfection and increased by PAR-1 overexpression plasmids (46.93 +/- 5.22 vs. 25.21 +/- 4.18 vs. 67.84 +/- 3.58 ng/ml, P < 0.01). Tube formation assays showed that conditioned media from shPAR-1 transfected cells resulted in an increase in the total number of branching points compared with that of blank controls (P < 0.05). The villus-decidua co-culture system confirmed down-regulation of PAR-1 was conducive to angiogenesis and vascular remodeling. Transfecting placenta with PAR-1 shRNA plasmids improved placental vascular development and ameliorated the symptoms of preeclampsia in rats. After treatment with shRNA, blood pressure was controlled (140.83 +/- 1.08 vs. 123.6 +/- 1.47 mmHg, P < 0.001) and proteinuria levels were decreased (4.48 +/- 0.36 vs. 2.64 +/ 0.25 MUg/MUl, P < 0.01). sFlt-1 protein levels were significantly higher in preeclampsia group than in the control group (1.44 +/- 0.33 vs. 2.92 +/- 0.85 ng/ml, P < 0.001), but was reduced (0.92 +/- 0.06 ng/ml, vs. PE, P < 0.001) in the treatment group. The histopathological changes of the placental microvessels showed that in the preeclampsia group, the number of blood vessels was reduced, while in treatment group, the placental microvasculature was improved (P < 0.001). LARGE SCALE DATA: N/A. LIMITATIONS, REASONS FOR CAUTION: Despite our promising results, the evaluation of kidney damage was studied only by proteinuria measurement. Histochemistry of kidney damage will be supplemented in a further study. WIDER IMPLICATIONS OF THE FINDINGS: The data showed that inhibition of trophoblast PAR-1 overexpression may promote placental angiogenesis and vascular remodeling, potentially offering an alternative therapeutic approach for preeclampsia. STUDY FUNDING/COMPETING INTEREST(S): This work was supported by grants from the National Natural Science Foundation of China (Grant Nos. 81100442 and 81771605 for Y.Z. and 81179584 for L.Z.) and the Hubei Province Health and Family Planning Scientific Research Project (Grant No. WJ2017 M093 for Y.Z.). The authors declare that there is no conflict of interest. PMID- 29325126 TI - Automated Integration of Trees and Traits: A Case Study Using Paired Fin Loss Across Teleost Fishes. AB - Data synthesis required for large-scale macroevolutionary studies is challenging with the current tools available for integration. Using a classic question regarding the frequency of paired fin loss in teleost fishes as a case study, we sought to create automated methods to facilitate the integration of broad-scale trait data with a sizable species-level phylogeny. Similar to the evolutionary pattern previously described for limbs, pelvic and pectoral fin reduction and loss are thought to have occurred independently multiple times in the evolution of fishes. We developed a bioinformatics pipeline to identify the presence and absence of pectoral and pelvic fins of 12,582 species. To do this, we integrated a synthetic morphological supermatrix of phenotypic data for the pectoral and pelvic fins for teleost fishes from the Phenoscape Knowledgebase (two presence/absence characters for 3047 taxa) with a species-level tree for teleost fishes from the Open Tree of Life project (38,419 species). The integration method detailed herein harnessed a new combined approach by utilizing data based on ontological inference, as well as phylogenetic propagation, to reduce overall data loss. Using inference enabled by ontology-based annotations, missing data were reduced from 98.0% to 85.9%, and further reduced to 34.8% by phylogenetic data propagation. These methods allowed us to extend the data to an additional 11,293 species for a total of 12,582 species with trait data. The pectoral fin appears to have been independently lost in a minimum of 19 lineages and the pelvic fin in 48. Though interpretation is limited by lack of phylogenetic resolution at the species level, it appears that following loss, both pectoral and pelvic fins were regained several (3) to many (14) times respectively. Focused investigation into putative regains of the pectoral fin, all within one clade (Anguilliformes), showed that the pectoral fin was regained at least twice following loss. Overall, this study points to specific teleost clades where strategic phylogenetic resolution and genetic investigation will be necessary to understand the pattern and frequency of pectoral fin reversals. PMID- 29325129 TI - Transaortic septal myectomy using direct septal echography. AB - We applied direct septal echography in transaortic septal myectomy for left ventricular outflow tract obstruction due to hypertrophic obstructive cardiomyopathy and asymmetric septal hypertrophy. A small L-shaped probe was inserted into the right ventricle through a 2-cm incision on the right ventricular outflow tract. The probe was placed directly on the interventricular septum to visualize its actual thickness. It was also helpful to push and expose the septum into a direct field of vision through the aortic annulus. This type of direct septal echography can be useful for the successful performance of transaortic septal myectomy. PMID- 29325128 TI - Relationship Between 12 Adipocytokines and Distinct Components of the Metabolic Syndrome. AB - Objective: Adipose tissue-derived signals potentially link obesity and adipose tissue dysfunction with metabolic and cardiovascular diseases. Although some adipocytokines have been closely related to metabolic and cardiovascular traits, it is unknown which adipocytokine or adipocytokine clusters serve as meaningful markers of metabolic syndrome (MS) components. Therefore, this study investigated the associations of 12 adipocytokines with components of the MS to identify the most relevant cytokines potentially related to specific metabolic profiles. Research Design and Methods: Twelve cytokines [adiponectin, adipocyte fatty acid binding protein (AFABP), angiopoietin-related growth factor, chemerin, fibroblast growth factor (FGF) 19, FGF21, FGF23, insulin-like growth factor-1, interleukin 10, irisin, progranulin, and vaspin] were quantified in a cross-sectional cohort of 1046 subjects. Hypothesis-free cluster analysis, multivariate regression analyses with parameters of the MS, and discriminant analysis were performed to assess associations and the relative importance of each cytokine for reflecting MS and its components. Results: Among the studied adipocytokines, adiponectin, AFABP, chemerin, and FGF21 showed the strongest associations with MS and several MS components in discriminant analyses and multiple regression models. For certain metabolic components, these adipocytokines were better discriminators than routine metabolic markers. Other cytokines investigated in the present cohort are less able to distinguish between metabolically healthy and unhealthy subjects. Conclusions: Adiponectin, AFABP, chemerin, and FGF21 showed the strongest associations with MS components in a general population, suggesting that adverse adipose tissue function is a major contributor to these metabolic abnormalities. Future prospective studies should address the question whether these adipocytokines can predict the development of metabolic disease states. PMID- 29325130 TI - Emergent heterogeneous microenvironments in biofilms: substratum surface heterogeneity and bacterial adhesion force-sensing. AB - Phenotypically heterogeneous microenvironments emerge as biofilms mature across different environments. Phenotypic heterogeneity in biofilm sub-populations not obeying quorum sensing-dictated, collective group behavior may be considered as a strategy allowing non-conformists to survive hostile conditions. Heterogeneous phenotype development has been amply studied with respect to gene expression and genotypic changes, but 'biofilm genes' responsible for preprogrammed development of heterogeneous microenvironments in biofilms have never been discovered. Moreover, the question of what triggers the development of phenotypically heterogeneous microenvironments has never been addressed. The definition of biofilms as 'surface-adhering and surface-adapted' microbial communities contains the word 'surface' twice. This leads us to hypothesize that phenotypically heterogeneous microenvironments in biofilms develop as an adaptive response of initial colonizers to their adhering state, governed by the forces through which they adhere to a substratum surface. No surface is entirely homogeneous, while adhering bacteria can substantially contribute to stochastically occurring surface heterogeneity. Accordingly, bacterial adhesion forces sensed by initial colonizers differ across a substratum surface, leading to differential mechanical deformation of the cell wall and membrane, where many environmental sensors are located. Bacteria directly adhering to heterogeneous substratum domains therewith formulate their own local responses to their adhering state and command non conformist behavior, leading to phenotypically heterogeneous microenvironments in biofilms. PMID- 29325131 TI - Crystal structures of high-pressure phases formed in Si by laser irradiation. AB - Internal modification induced in Si by a permeable pulse laser was investigated by transmission electron microscopy. A laser induced modified volume (LIMV) was a cylindrical rod along the track of a laser beam with the head at the focus of the laser beam. In the LIMV, beside voids, dislocations, micro-cracks and what had been supposed to be an unidentified high-pressure phase (hpp) of Si were observed in LIMV. The so-called 'hpp' was identified mostly as diamond Si. PMID- 29325132 TI - Dark tea extract mitigates hematopoietic radiation injury with antioxidative activity. AB - The hematopoietic system is widely studied in radiation research. Tea has been proved to have antioxidative activity. In the present study, we describe the protective effects of dark tea extract (DTE) on radiation-induced hematopoietic injury. DTE administration significantly enhanced the survival rate of mice after 7.0 and 7.5 Gy total body irradiation (TBI). The results showed that DTE not only markedly increased the numbers and cloning potential of hematopoietic cells, but also decreased DNA damages after mice were exposed to 6.0 Gy total body irradiation (TBI). In addition, DTE also decreased the levels of reactive oxygen species (ROS) in hematopoietic cells by inhibiting NOX4 expression and increasing the dismutase, catalase and glutathione peroxidase in livers. These data demonstrate that DTE can prevent radiation-induced hematopoietic syndromes, which is beneficial for protection from radiation injuries. PMID- 29325133 TI - The Efficacy of 24-Month Metformin for Improving Menses, Hormones, and Metabolic Profiles in Polycystic Ovary Syndrome. AB - Context: The long-term effects of metformin in women with polycystic ovarian syndrome (PCOS) are inadequately studied. Objective: The effects of metformin on women with PCOS during 24 months with respect to menses, hormones, and metabolic profiles are assessed. Design: Prospective cohort. Setting: A reproductive endocrinology clinic in a university-affiliated medical center. Patients: One hundred nineteen women with PCOS, defined by the Rotterdam criteria, were enrolled. Intervention: Metformin was given daily for 24 months. Main Outcome Measures: The primary outcome was the proportion of patients with regular menstruation during treatment. Changes in anthropometric, hormonal, and metabolic parameters were also assessed. Analyses were performed using segmented regression analysis with a generalized estimating equation methodology. Outcomes are expressed as magnitude of change from the baseline. Results: Both overweight (OW) and normal-weight (NW) women with PCOS had increased menstrual frequency and decreased body mass index (BMI), testosterone, and luteinizing hormone levels in the first 6 months. Further stratification showed that NW women exhibiting elevated testosterone at baseline had the largest magnitude of improvement at 6 months [odds ratio (OR), 7.21; 95% confidence interval (CI), 2.35 to 22.17], whereas OW patients with normal testosterone were most likely to achieve normal menses at 12 months (OR, 0.63; 95% CI, 0.47 to 0.77). Conclusions: Metformin was associated with improvements in the menstrual cycle and most hormonal profiles in OW and NW women with PCOS during 24 months of treatment. Most parameters reached maximal response and steady-state after 6 months. Phenotypic differences in baseline BMI and testosterone level can be used as patient selection criteria or treatment prognostics. PMID- 29325134 TI - Continued propagation of the CRF19_cpx variant among HIV-positive MSM patients in Spain. AB - Objectives: The HIV-1 CRF19_cpx genetic form has been recently associated with greater pathogenicity. We used CoRIS, a national cohort of 31 reference hospitals in Spain, to investigate the current epidemiological situation of this variant in Spain. Patients and methods: We analysed 4734 naive HIV-1-positive patients diagnosed during the 2007-15 period with an available pol gene sequence in the CoRIS resistance database. HIV-1 CRF19_cpx was ascribed through REGA3.0 and confirmed by a phylogenetic analysis. We analysed the presence of the transmission clusters of HIV-1 CRF19_cpx by maximum likelihood [with the randomized accelerated maximum likelihood (RAxML) program] and the time to the most recent common ancestor using Bayesian inference (BEAST, v. 1.7.5). Results: Nineteen patients were infected with CRF19_cpx: all were male, they had a mean age of 42.9 years (95% CI: 36.4-52.5 years), the majority were MSM [n = 18 (95%)] and of Spanish nationality [n = 16 (84.2%)] and they had high CD4+ T cell counts (~415 cells/mm3). Fifteen patients were grouped into four different transmission clusters: two clusters (two patients each) grouped the patients from Valencia and another cluster grouped one patient from Madrid and another from Seville. We found a larger cluster that grouped nine patients from southern Spain (Malaga and Seville), of which six presented mutation G190A. We estimated the origin of all the transmission clusters to take place between 2009 and 2010. Conclusions: We demonstrate that this variant has spread in Spain in recent years among young HIV positive MSM and we note a recent expansion in southern Spain in patients who carry mutation G190A. We alert healthcare managers to enhance preventive measures to prevent the continuous spread of HIV-1 CRF19_cpx. PMID- 29325135 TI - Precipitation is not limiting for xylem formation dynamics and vessel development in European beech from two temperate forest sites. AB - We investigated the dynamics of xylem differentiation processes and vessel characteristics in Fagus sylvatica L. to evaluate the plasticity of xylem structures under different environmental conditions. In 2008-10, analyses were performed on microcores collected weekly from two temperate sites: Menina planina (1200 m above sea level (a.s.l.)) and Panska reka (400 m a.s.l.). The duration between the onset and end of major cell differentiation steps and vessel characteristics (i.e., density, VD; mean diameter, MVD; mean area, MVA; and theoretic conductivity area, TCA) were analysed in the first and last quarters of the xylem rings, also in respect of local weather conditions (precipitation, temperature). Although the onset, duration and end of xylem formation phases differed between the two sites, the time spans between the successive wood formation phases were similar. Significant differences in MVD, MVA and TCA values were found between the first and last quarters of xylem increment, regardless of the site and year. Vessel density, on the other hand, depended on xylem-ring width and differed significantly between the sites, being about 30% higher at the high elevation site, in beech trees with 54% narrower xylem rings. Vessel density in the first quarter of the xylem ring showed a positive correlation with the onset of cell expansion, whereas a negative correlation of VD with the cessation of cell production was found in the last quarter of xylem increment. This may be explained by year-to-year differences in the timing of cambial reactivation and leaf development, which effect hormonal regulation of radial growth. No significant linkage between intra-annual weather conditions and conduit characteristics was found. It can thus be presumed that precipitation is not a limiting factor for xylem growth and cell differentiation in beech at the two temperate study sites and sites across Europe with similar weather conditions. PMID- 29325136 TI - Haemodynamic performance of AFX and Nellix endografts: a computational fluid dynamics study. AB - OBJECTIVES: The objective of this study is to analyse the flow conditions in the AFX and Nellix endografts (EGs) accounting for their postimplantation configuration in patients with an endovascular aneurysm repair-treated abdominal aortic aneurysm. METHODS: We reconstructed post-endovascular aneurysm repair computed tomography scans of patients treated with an AFX or Nellix EG creating post-implantation EG models. We examined 16 patients, 8 in each group. The blood flow properties were obtained by computational fluid dynamics simulations and were subsequently compared with physiological infrarenal blood flow properties measured in 5 healthy subjects. Specifically, pressure drop, maximum velocity and wall shear stress were measured at peak systole and mean helicity at mid diastole. RESULTS: Our statistical analyses showed that the haemodynamic properties in both control regions did not vary statistically after the implantation of either the AFX or the Nellix EG, except for helicity that was significantly lower in the abdominal part of the Nellix EG compared with the expected physiological measurement. Regardless of the overall blood flow restoration, it is important to note that low pressure drop was detected along the limbs of the AFX and suppressed blood helical motion was detected at the entrance of the Nellix device. CONCLUSIONS: It is observed from the results that the AFX EG has achieved absolute restoration of blood flow after endovascular aneurysm repair, although the development of secondary flow in the upper part of the EG and the low pressure drop in its limbs should be acknowledged. The Nellix EG also seems to be haemodynamically efficient. However, the suppression of helical flow before blood enters the device might raise concerns about its clinical application. PMID- 29325137 TI - Review of Neurosurgery Medical Professional Liability Claims in the United States. AB - BACKGROUND: Due to disparaging costs and rates of malpractice claims in neurosurgery, there has been significant interest in identifying high-risk specialties, types of malpractice claims, and characteristics of claim-prone physicians. OBJECTIVE: To characterize the malpractice claims against neurosurgeons. METHODS: This was a comprehensive analysis of all malpractice liability claims involving a neurosurgeon as the primary defendant, conducted using the Physician Insurers Association of America Data Sharing Project from January 1, 2003 and December 31, 2012. RESULTS: From 2003 to 2012, 2131 closed malpractice claims were filed against a neurosurgeon. The total amount of indemnity paid collective between 1998 to 2002, 2003 to 2007, and 2008 to 2012 was $109 614 935, $140 031 875, and $122 577 230, respectively. Of all the neurosurgery claims, the most prevalent chief medical factor was improper performance (42.1%, $124 943 933), presenting medical condition was intervertebral disc disorder (20.6%, $54 223 206), and operative procedure performed involved the spinal cord and/or spinal canal (21.0%, $62 614 995). Eighty-five (22.91%) of the total neurosurgery claims resulted in patient death, resulting in $32 067 759 paid. Improper performance of the actual procedure was the most prevalent and highest total paid cause for patient death ($9 584 519). CONCLUSION: From 2003 to 2012, we found that neurosurgery malpractice claims rank among one of the most costly and prevalent, with the average indemnities paid annually and the overall economic burden increasing. Diagnoses and procedures involving the spine, along with improper performance, were the most prevalent malpractice claims against neurosurgeons. Continued medical malpractice reform is essential to correct the overall health care cost burdens, and ultimately improve patient safety. PMID- 29325139 TI - Does oxidative stress contribute to adverse outcomes in HIV-associated TB? AB - In HIV infection, oxidative stress is a pronounced phenomenon, with likely links to HIV-related pathologies and the progression of HIV infection per se. TB is an AIDS-defining condition. HIV-associated oxidative stress, like that associated with diabetes mellitus, might adversely impact the outcomes of TB, probably through increased propensity for generation of metabolically dormant mycobacterial persisters, alongside other mechanisms. This hypothesis might help in guiding the exploration of relevant research directions to improve the care of patients. PMID- 29325138 TI - Evidence for Viral Interference and Cross-reactive Protective Immunity Between Influenza B Virus Lineages. AB - Background: Two influenza B virus lineages, B/Victoria and B/Yamagata, cocirculate in the human population. While the lineages are serologically distinct, cross-reactive responses to both lineages have been detected. Viral interference describes the situation whereby infection with one virus limits infection and replication of a second virus. We investigated the potential for viral interference between the influenza B virus lineages. Methods: Ferrets were infected and then challenged 3, 10, or 28 days later with pairs of influenza B/Victoria and B/Yamagata viruses. Results: Viral interference occurred at challenge intervals of 3 and 10 days and occasionally at 28 days. At the longer interval, shedding of challenge virus was reduced, and this correlated with cross reactive interferon gamma responses from lymph nodes from virus-infected animals. Viruses from both lineages could prevent or significantly limit subsequent infection with a virus from the other lineage. Coinfections were rare, indicating the potential for reassortment between lineages is limited. Conclusions: These data suggest that innate and cross-reactive immunity mediate viral interference and that this may contribute to the dominance of a specific influenza B virus lineage in any given influenza season. Furthermore, infection with one influenza B virus lineage may be beneficial in protecting against subsequent infection with either influenza B virus lineage. PMID- 29325140 TI - Optimism for the Future in Younger and Older Adults. AB - Objectives: Research has suggested that older adults are less optimistic about their future than younger adults; however, a limitation of prior studies is that younger and older adults were forecasting to different ages and stages of life. To address this, we investigated whether there are age differences in future optimism when people project to the exact same age. We also tested whether optimism differs when projecting one's own future versus another person's future. Method: Participants were 285 younger and 292 older adults recruited from Amazon Mechanical Turk. Participants completed writing and word-rating tasks in which they imagined their own future in 15 years, their own future at age 85, or the average person's future at age 85. Results: Younger adults were more optimistic than older adults about their own future in 15 years. In contrast, both age groups were similarly optimistic about their future at age 85 and expected it to be more positive than others' future at age 85. Discussion: Contrary to previous research, younger and older adults had comparable future forecasts when projecting to the exact same age. These findings emphasize the need to consider age and stage of life when examining age differences in future optimism. PMID- 29325142 TI - The effect of measuring serum doxycycline concentrations on clinical outcomes during treatment of chronic Q fever. AB - Background: First choice treatment for chronic Q fever is doxycycline plus hydroxychloroquine. Serum doxycycline concentration (SDC) >5 MUg/mL has been associated with a favourable serological response, but the effect on clinical outcomes is unknown. Objectives: To assess the effect of measuring SDC during treatment of chronic Q fever on clinical outcomes. Methods: We performed a retrospective cohort study, to assess the effect of measuring SDC on clinical outcomes in patients treated with doxycycline and hydroxychloroquine for chronic Q fever. Primary outcome was the first disease-related event (new complication or chronic Q fever-related mortality); secondary outcomes were all-cause mortality and PCR-positivity. Multivariable analysis was performed with a Cox proportional hazards model, with shared-frailty terms for different hospitals included. Results: We included 201 patients (mean age 68 years, 83% male): in 167 patients (83%) SDC was measured, 34 patients (17%) were treated without SDC measurement. First SDC was >5 MUg/mL in 106 patients (63%), all with 200 mg doxycycline daily. In patients with SDC measured, dosage was adjusted in 41% (n = 68), concerning an increase in 64 patients. Mean SDC was 4.1 MUg/mL before dosage increase, and 5.9 MUg/mL afterwards. SDC measurement was associated with a lower risk for disease related events (HR 0.51, 95% CI 0.26-0.97, P = 0.04), but not with all-cause mortality or PCR-positivity. Conclusions: SDC measurement decreases the risk for disease-related events, potentially through more optimal dosing or improved compliance. We recommend measurement of SDC and striving for SDC >5 MUg/mL and <10 MUg/mL during treatment of chronic Q fever. PMID- 29325141 TI - LncMAP: Pan-cancer atlas of long noncoding RNA-mediated transcriptional network perturbations. AB - Gene regulatory network perturbations contribute to the development and progression of cancer, however, molecular determinants that mediate transcriptional perturbations remain a fundamental challenge for cancer biology. We show that transcriptional perturbations are widely mediated by long noncoding RNAs (lncRNAs) via integration of genome-wide transcriptional regulation with paired lncRNA and gene expression profiles. Systematic construction of an LncRNA Modulator Atlas in Pan-cancer (LncMAP) reveals distinct types of lncRNA regulatory molecules, which are expressed in multiple tissues, exhibit higher conservation. Strikingly, cancers with similar tissue origin share lncRNA modulators which perturb the regulation of cell cycle and immune response-related functions. Furthermore, we identified a large number of pan-cancer lncRNA modulators with potential clinical significance, which are differentially expressed in cancer or are strongly correlated with drug sensitivity across cell lines. Further stratification of cancer patients based on lncRNA-mediated transcriptional perturbations identifies subtypes with distinct survival rates. Finally, we made a user-friendly web interface available for exploring lncRNA mediated transcriptional perturbations across cancer types. Our study provides a systems-level dissection of lncRNA-mediated regulatory perturbations in cancer, and also presents a valuable tool and resource for investigating the function of lncRNAs in cancer. PMID- 29325143 TI - Associations of Gross Motor Delay, Behavior, and Quality of Life in Young Children With Autism Spectrum Disorder. AB - Background: Young children with autism spectrum disorder (ASD) often have gross motor delays that may accentuate problem daytime behavior and health-related quality of life (QoL). Objective: The objective of this study was to describe the degree of gross motor delays in young children with ASD and associations of gross motor delays with problem daytime behavior and QoL. The primary hypothesis was that Gross motor delays significantly modifies the associations between internalizing or externalizing problem daytime behavior and QoL. Design: This study used a cross-sectional, retrospective analysis. Methods: Data from 3253 children who were 2 to 6 years old and who had ASD were obtained from the Autism Speaks Autism Treatment Network and analyzed using unadjusted and adjusted linear regression. Measures included the Vineland Adaptive Behavior Scales, 2nd edition, gross motor v-scale score (VABS-GM) (for Gross motor delays), the Child Behavior Checklist (CBCL) (for Problem daytime behavior), and the Pediatric Quality of Life Inventory (PedsQL) (for QoL). Results: The mean VABS-GM was 12.12 (SD = 2.2), representing performance at or below the 16th percentile. After adjustment for covariates, the internalizing CBCL t score decreased with increasing VABS-GM (beta = - 0.64 SE = 0.12). Total and subscale PedsQL scores increased with increasing VABS-GM (for total score: beta = 1.79 SE = 0.17; for subscale score: beta = 0.9-2.66 SE = 0.17-0.25). CBCL internalizing and externalizing t scores decreased with increasing PedsQL total score (beta = - 0.39 SE = 0.01; beta = - 0.36 SE = 0.01). The associations between CBCL internalizing or externalizing t scores and PedsQL were significantly modified by VABSGM (beta = - 0.026 SE = 0.005]; beta = - 0.019 SE = 0.007). Limitations: The study lacked ethnic and socioeconomic diversity. Measures were collected via parent report without accompanying clinical assessment. Conclusions: Cross motor delay was independently associated with Problem daytime behavior and QoL in children with ASD. Gross motor delay modified the association between Problem daytime behavior and QoL. Children with ASD and co-occurring internalizing Problem daytime behavior had greater Gross motor delays than children without internalizing Problem daytime behavior; therefore, these children may be most appropriate for early physical therapist evaluation. PMID- 29325144 TI - A Metabolomics Analysis of Body Mass Index and Postmenopausal Breast Cancer Risk. AB - Background: Elevated body mass index (BMI) is associated with increased risk of postmenopausal breast cancer. The underlying mechanisms, however, remain elusive. Methods: In a nested case-control study of 621 postmenopausal breast cancer case participants and 621 matched control participants, we measured 617 metabolites in prediagnostic serum. We calculated partial Pearson correlations between metabolites and BMI, and then evaluated BMI-associated metabolites (Bonferroni corrected alpha level for 617 statistical tests = P < 8.10 * 10-5) in relation to invasive breast cancer. Odds ratios (ORs) of breast cancer comparing the 90th vs 10th percentile (modeled on a continuous basis) were estimated using conditional logistic regression while controlling for breast cancer risk factors, including BMI. Metabolites with the lowest P values (false discovery rate < 0.2) were mutually adjusted for one another to determine those independently associated with breast cancer risk. Results: Of 67 BMI-associated metabolites, two were independently associated with invasive breast cancer risk: 16a-hydroxy-DHEA-3 sulfate (OR = 1.65, 95% confidence interval [CI] = 1.22 to 2.22) and 3 methylglutarylcarnitine (OR = 1.67, 95% CI = 1.21 to 2.30). Four metabolites were independently associated with estrogen receptor-positive (ER+) breast cancer risk: 16a-hydroxy-DHEA-3-sulfate (OR = 1.84, 95% CI = 1.27 to 2.67), 3 methylglutarylcarnitine (OR = 1.91, 95% CI = 1.23 to 2.96), allo-isoleucine (OR = 1.76, 95% CI = 1.23 to 2.51), and 2-methylbutyrylcarnitine (OR = 1.89, 95% CI = 1.22 to 2.91). In a model without metabolites, each 5 kg/m2 increase in BMI was associated with a 14% higher risk of breast cancer (OR = 1.14, 95% CI = 1.01 to 1.28), but adding 16a-hydroxy-DHEA-3-sulfate and 3-methylglutarylcarnitine weakened this association (OR = 1.06, 95% CI = 0.93 to 1.20), with the logOR attenuating by 57.6% (95% CI = 21.8% to 100.0+%). Conclusion: These four metabolites may signal metabolic pathways that contribute to breast carcinogenesis and that underlie the association of BMI with increased postmenopausal breast cancer risk. These findings warrant further replication efforts. PMID- 29325147 TI - Trends in Rate of Seizure-Associated Hospitalizations Among Children <5 Years Old Before and After Rotavirus Vaccine Introduction in the United Sates, 2000-2013. AB - Background: Rotavirus is a common cause of acute gastroenteritis and has also been associated with generalized tonic-clonic afebrile seizures. Since rotavirus vaccine introduction, hospitalizations for treatment of acute gastroenteritis have decreased. We assess whether there has been an associated decrease in seizure-associated hospitalizations. Methods: We used discharge codes to abstract data on seizure hospitalizations among children <5 years old from the State Inpatient Databases of the Healthcare Cost and Utilization Project. We compared seizure hospitalization rates before and after vaccine introduction, using Poisson regression, stratifying by age and by month and year of admission. We performed a time-series analysis with negative binomial models, constructed using prevaccine data from 2000 to 2006 and controlling for admission month and year. Results: We examined 962899 seizure hospitalizations among children <5 years old during 2000-2013. Seizure rates after vaccine introduction were lower than those before vaccine introduction by 1%-8%, and rate ratios decreased over time. Time series analyses demonstrated a decrease in the number of seizure-coded hospitalizations in 2012 and 2013, with notable decreases in children 12-17 months and 18-23 months. Conclusions: Our analysis provides evidence for a decrease in seizure hospitalizations following rotavirus vaccine introduction in the United States, with the greatest impact in age groups with a high rotavirus associated disease burden and during rotavirus infection season. PMID- 29325145 TI - Anxiety-dependent modulation of motor responses to pain expectancy. AB - The relationship between pain expectancy and motor system plays a crucial role in the human defensive system. Here, we took advantage of the inhibitory modulation of the motor pathway to the muscle of the hand receiving painful stimuli, by recording motor-evoked potentials (MEPs) to Transcranial Magnetic Stimulation (TMS). We employed a classical conditioning paradigm in which neutral (visual and auditory) stimuli were conditioned by pairing either painful or not-painful stimuli (electric shocks) in separated groups. Only the Pain Group showed clear motor responses: i.e. a significant decrease in MEPs amplitude, with respect to the neutral condition, not only in conditioning stimuli, when actual shocks were paired with neutral stimuli, but also in conditioned stimuli, when shocks were only expected. Significant differences between the two groups suggest that the MEPs decrease is specific for pain expectancy and does not pertain to anticipation in general. Furthermore, in the Pain Group, a significant negative correlation between physiological responses to conditioned stimuli and the participants' anxiety traits was found: the lower the MEPs amplitude, the higher the participants' anxiety scores. The present findings suggest that, in order for defensive motor responses to occur, actual pain is not necessary; rather, anxiety dependent pain expectancy can be sufficient. PMID- 29325146 TI - Dramatic Changes in Malaria Population Genetic Complexity in Dielmo and Ndiop, Senegal, Revealed Using Genomic Surveillance. AB - Dramatic changes in transmission intensity can impact Plasmodium population diversity. Using samples from 2 distant time-points in the Dielmo/Ndiop longitudinal cohorts from Senegal, we applied a molecular barcode tool to detect changes in parasite genotypes and complexity of infection that corresponded to changes in transmission intensity. We observed a striking statistically significant difference in genetic diversity between the 2 parasite populations. Furthermore, we identified a genotype in Dielmo and Ndiop previously observed in Thies, potentially implicating imported malaria. This genetic surveillance study validates the molecular barcode as a tool to assess parasite population diversity changes and track parasite genotypes. PMID- 29325148 TI - Effect of dietary beta-alanine supplementation on growth performance, meat quality, carnosine content, and gene expression of carnosine-related enzymes in broilers. AB - The objective of the current study was to investigate the effect of dietary beta alanine supplementation on growth performance, meat quality, antioxidant ability, carnosine content, and gene expression of carnosine-related enzymes in broiler chicks. We randomly assigned 540 1-day-old Arbor Acres broilers to 5 dietary treatments supplemented with 0 (control group), 250, 500, 1,000, or 2,000 mg/kg of beta-alanine (mg beta-alanine per kg feed). Each treatment included 6 replicates of 18 birds. The feeding trial lasted for 42 d. Dietary beta-alanine supplementation linearly and quadratically increased the average daily gain (ADG) during the starting period (d 1 to 21, P = 0.02 and P = 0.002). The feed conversion ratio (FCR) decreased quadratically in response to dietary beta alanine supplementation during the starting and entire periods (P < 0.001 and P = 0.003, respectively). For the entire period, the predicted best FCR would be achieved when beta-alanine was fed at a level of 1,100 mg/kg from quadratic regression. The concentrations of carnosine and beta-alanine in breast muscle increased quadratically with dietary beta-alanine supplementation (d 42, P < 0.001 and P = 0.001, respectively). The predicted dietary beta-alanine level for highest breast carnosine content was 1,196 mg/kg. Dietary supplementation with beta-alanine reduced the taurine concentrations in plasma (d 42, linear and quadratic, P < 0.001). Breast muscle yield increased linearly and quadratically in response to dietary beta-alanine addition (d 21, P = 0.017 and P = 0.007). Dietary supplementation with beta-alanine quadratically reduced the shear force (P = 0.003), whereas a*45 min and a*24 h values increased quadratically in response to dietary beta-alanine supplementation (d 42, P = 0.020 and P = 0.021, respectively). Dietary beta-alanine addition quadratically enhanced the expression of carnosine synthase and taurine transporter mRNAs (P < 0.05). Overall, dietary beta-alanine supplementation improved growth performance and carnosine content, ameliorated antioxidant capacity and meat quality, and upregulated the gene expression of carnosine synthesis-related enzymes in broiler chicks. PMID- 29325149 TI - Anatomy of a Hotspot: Chain and Seroepidemiology of Ebola Virus Transmission, Sukudu, Sierra Leone, 2015-16. AB - Studies have yet to include minimally symptomatic Ebola virus (EBOV) infections and unrecognized Ebola virus disease (EVD) in Ebola-related transmission chains and epidemiologic risk estimates. We conducted a cross-sectional, sero epidemiological survey from October 2015 to January 2016 among 221 individuals living in quarantined households from November 2014 to February 2015 during the Ebola outbreak in the village of Sukudu, Sierra Leone. Of 48 EBOV-infected persons, 25% (95% confidence interval [CI], 14%-40%) had minimally symptomatic EBOV infections and 4% (95% CI, 1%-14%) were unrecognized EVD cases. The pattern of minimally symptomatic EBOV infections in the transmission chain was nonrandom (P < .001, permutation test). Not having lived in the same house as an EVD case was significantly associated with minimally symptomatic infection. This is the first study to investigate a chain of EBOV transmission inclusive of minimally symptomatic EBOV infections and unrecognized EVD. Our findings provide new insights into Ebola transmission dynamics and quarantine practices. PMID- 29325150 TI - The relationship between alcohol use and long-term cognitive decline in middle and late life: a longitudinal analysis using UK Biobank. AB - Background: Using UK Biobank data, this study sought to explain the causal relationship between alcohol intake and cognitive decline in middle and older aged populations. Methods: Data from 13 342 men and women, aged between 40 and 73 years were used in regression analysis that tested the functional relationship and impact of alcohol on cognitive performance. Performance was measured using mean reaction time (RT) and intra-individual variation (IIV) in RT, collected in response to a perceptual matching task. Covariates included body mass index, physical activity, tobacco use, socioeconomic status, education and baseline cognitive function. Results: A restricted cubic spline regression with three knots showed how the linear (beta1 = -0.048, 95% CI: -0.105 to -0.030) and non linear effects (beta2 = 0.035, 95% CI: 0.007-0.059) of alcohol use on mean RT and IIV in RT (beta1 = -0.055, 95% CI: -0.125 to -0.034; beta2 = 0.034, 95% CI: 0.002 0.064) were significant adjusting for covariates. Cognitive function declined as alcohol use increased beyond 10 g/day. Decline was more apparent as age increased. Conclusions: The relationship between alcohol use and cognitive function is non-linear. Consuming more than one UK standard unit of alcohol per day is detrimental to cognitive performance and is more pronounced in older populations. PMID- 29325151 TI - The making of virgin fruit: the molecular and genetic basis of parthenocarpy. AB - Fruit set-the commitment of an angiosperm plant to develop fruit-is a key developmental process that normally occurs following successful fertilization. Parthenocarpy arises when fruit automatically develop in the absence of fertilization. This review uses parthenocarpic fruit development as a focal device through which to recapitulate and understand the molecular effectors that mediate and regulate fruit set. The review demonstrates that studies of parthenocarpy are providing vital insight into plant development, signaling and, potentially, high-value agricultural products. PMID- 29325152 TI - Cohort Profile: Health and Ageing in Africa: a Longitudinal Study of an INDEPTH Community in South Africa (HAALSI). PMID- 29325154 TI - Growth and carbon balance are differently regulated by tree and shoot fruiting contexts: an integrative study on apple genotypes with contrasted bearing patterns. AB - In plants, carbon source-sink relationships are assumed to affect their reproductive effort. In fruit trees, carbon source-sink relationships are likely to be involved in their fruiting behavior. In apple, a large variability in fruiting behaviors exists, from regular to biennial, which has been related to the within-tree synchronization vs desynchronization of floral induction in buds. In this study, we analyzed if carbon assimilation, availability and fluxes as well as shoot growth differ in apple genotypes with contrasted behaviors. Another aim was to determine the scale of plant organization at which growth and carbon balance are regulated. The study was carried out on 16 genotypes belonging to three classes: (i) biennial, (ii) regular with a high production of floral buds every year and (iii) regular, displaying desynchronized bud fates in each year. Three shoot categories, vegetative and reproductive shoots with or without fruits, were included. This study shows that shoot growth and carbon balance are differentially regulated by tree and shoot fruiting contexts. Shoot growth was determined by the shoot fruiting context, or by the type of shoot itself, since vegetative shoots were always longer than reproductive shoots whatever the tree crop load. Leaf photosynthesis depended on the tree crop load only, irrespective of the shoot category or the genotypic class. Starch content was also strongly affected by the tree crop load with some adjustments of the carbon balance among shoots since starch content was lower, at least at some dates, in shoots with fruits compared with the shoots without fruits within the same trees. Finally, the genotypic differences in terms of shoot carbon balance partly matched with genotypic bearing patterns. Nevertheless, carbon content in buds and the role of gibberellins produced by seeds as well as the distances at which they could affect floral induction should be further analyzed. PMID- 29325153 TI - Network perturbation analysis of gene transcriptional profiles reveals protein targets and mechanism of action of drugs and influenza A viral infection. AB - Genome-wide transcriptional profiling provides a global view of cellular state and how this state changes under different treatments (e.g. drugs) or conditions (e.g. healthy and diseased). Here, we present ProTINA (Protein Target Inference by Network Analysis), a network perturbation analysis method for inferring protein targets of compounds from gene transcriptional profiles. ProTINA uses a dynamic model of the cell-type specific protein-gene transcriptional regulation to infer network perturbations from steady state and time-series differential gene expression profiles. A candidate protein target is scored based on the gene network's dysregulation, including enhancement and attenuation of transcriptional regulatory activity of the protein on its downstream genes, caused by drug treatments. For benchmark datasets from three drug treatment studies, ProTINA was able to provide highly accurate protein target predictions and to reveal the mechanism of action of compounds with high sensitivity and specificity. Further, an application of ProTINA to gene expression profiles of influenza A viral infection led to new insights of the early events in the infection. PMID- 29325155 TI - Sleep findings in Brazilian children with congenital Zika syndrome. AB - Study Objectives: Zika virus infection during pregnancy may result in congenital Zika syndrome (CZS), whose characteristics are being described. Methods: The present study aimed to investigate the sleep characteristics of 136 infants/toddlers (88 with CZS and 48 with typical development (TD), age and gender matched, 60% girls and 40% boys in both groups) using the Brief Infant Sleep Questionnaire. The ages of children in both groups ranged from 5 to 24 months (CZS 15.9 +/- 0.4 vs. TD 15.8 +/- 1.0 months, P= 0.90). Results: The results show that 34.1% of CZS and 2% of TD children were defined as poor sleepers, 15% of CZS and 2% of TD children remained awake at night for a period longer than 1 hour, and 24% of CZS and 2% of TD children slept less than 9 hours. The CZS group showed shorter total sleep time (CZS 11.24 +/- 2.6 vs. TD 12.02 +/- 1.9 hours, P= 0.03) and shorter nocturnal sleep duration than the TD group (CZS 8.2 +/- 0.2 vs. TD 9.4 +/- 0.2 hours, P= 0.0002). In contrast to the control group (P= 0.02, r= -0.34), in the CZS group, no correlation was found between age and nocturnal wakefulness. Future studies should explore these data in relation to the development and maturation of the central nervous system of these children. Conclusions: Considering the well-known consequences of poor sleep quality on health in several populations, the presence of sleep disorders should be considered in CZS using multidisciplinary treatments. PMID- 29325156 TI - Using Metabolomics to Explore the Role of Postmenopausal Adiposity in Breast Cancer Risk. PMID- 29325157 TI - A National Imperative: Multimodal Pain Education Reform in US Medical Schools. PMID- 29325158 TI - Influence of light sources and photoperiod on growth performance, carcass characteristics, and health indices of broilers grown to heavy weights. AB - Effects of light sources and photoperiod on growth performance, carcass characteristics and health indices of broilers were investigated in 4 trials. In each trial, 720 1-day-old Ross * Ross 708 chicks were randomly distributed into 12 environmentally controlled rooms (30 males/30 females/room). The experimental design was a 4 * 3 factorial treatments consisted of 4 light sources [incandescent (ICD, standard), compact fluorescent (CFL), neutral light-emitting diode (Neutral-LED), and cool poultry-specific filtered LED (Cool-PSF-LED)] and 3 photoperiods [long/continuous (23L:1D), regular/intermittent (2L:2D), and short/non-intermittent (8L:16D)] from d8-d56. Birds were fed the same diet, while feed and water were provided ad libitum. Birds and feed were weighed on 1, 14, 28, 42, and 56 d of age for growth performance. Mortality was recorded daily and feed conversion was adjusted for mortality. Immune response was determined on d 28 to 35, whereas other welfare indices were performed on d 42, 43, and 49. At 56 d of age, 10 male and 10 female birds from each room were randomly selected and processed to determine weights and yields. The BW, BW gain, live weight, and carcass weights and yields of birds reared under Cool-PSF-LED were increased (P <= 0.05) in comparison to birds reared under ICD, but FI, FCR, and mortality were not affected. Moreover, broilers subjected to the short/non-intermittent photoperiod had the lowest (P <= 0.05) BW, BW gain, FI, live weight, carcass weight, and pectoralis major and minor weights compared to other 2 photoperiods. There was no effect of treatments on some carcass characteristics. There was no effect of treatments on welfare indices, suggesting that the light sources evaluated did not compromise welfare of heavy broilers. It was concluded that the 3 light sources evaluated in this study may be suitable for replacement of ICD light source along with regular/intermittent photoperiod instead of long/continuous photoperiod in poultry facilities to save energy utilization, thereby reducing the total cost of production. PMID- 29325159 TI - A Novel Rice Xylosyltransferase Catalyzes the Addition of 2-O-Xylosyl Side Chains onto the Xylan Backbone. AB - Xylan is a major hemicellulose in both primary and secondary walls of grass species. It consists of a linear backbone of beta-1,4-linked xylosyl residues that are often substituted with monosaccharides and disaccharides. Xylosyl substitutions directly on the xylan backbone have not been reported in grass species, and genes responsible for xylan substitutions in grass species have not been well elucidated. Here, we report functional characterization of a rice (Oryza sativa) GT61 glycosyltransferase, XYXT1 (xylan xylosyltransferase1), for its role in xylan substitutions. XYXT1 was found to be ubiquitously expressed in different rice organs and its encoded protein was targeted to the Golgi, the site for xylan biosynthesis. When expressed in the Arabidopsis gux1/2/3 triple mutant, in which xylan was completely devoid of sugar substitutions, XYXT1 was able to add xylosyl side chains onto xylan. Glycosyl linkage analysis and comprehensive structural characterization of xylooligomers generated by xylanase digestion of xylan from transgenic Arabidopsis plants expressing XYXT1 revealed that the side chain xylosyl residues were directly attached to the xylan backbone at O-2, a substituent not present in wild-type Arabidopsis xylan. XYXT1 was unable to add xylosyl residues onto the arabinosyl side chains of xylan when it was co expressed with OsXAT2 (Oryza sativa xylan arabinosyltransferase2) in the gux1/2/3 triple mutant. Furthermore, we showed that recombinant XYXT1 possessed an activity transferring xylosyl side chains onto xylooligomer acceptors, whereas recombinant OsXAT2 catalyzed the addition of arabinosyl side chains onto xylooligomer acceptors. Our findings from both an in vivo gain-of-function study and an in vitro recombinant protein activity assay demonstrate that XYXT1 is a novel beta-1,2-xylosyltransferase mediating the addition of xylosyl side chains onto xylan. PMID- 29325160 TI - Implementing Electronic Health Record Default Settings to Reduce Opioid Overprescribing: A Pilot Study. AB - Objective: To pilot test the effectiveness, feasibility, and acceptability of instituting a 15-pill quantity default in the electronic health record for new Schedule II opioid prescriptions. Design: A mixed-methods pilot study in two health systems, including pre-post analysis of prescribed opioid quantity and focus groups or interviews with prescribers and health system administrators. Methods: We implemented a 15-pill electronic health record default for new Schedule II opioids and assessed opioid quantity before and after implementation using electronic health record data on 6,390 opioid prescriptions from 448 prescribers. We then analyzed themes from focus groups and interviews with four staff members and six prescribers. Results: The proportion of opioid prescriptions for 15 pills increased at both sites after adding an electronic health record default, with one reaching statistical significance (from 4.1% to 7.2% at CHC, P = 0.280, and 15.9% to 37.2% at WVU, P < 0.001). The proportion of 15-pill prescriptions increased among high-prescribing departments and among most high- and low-frequency prescribers, except for low-frequency prescribers at CHC. Sites reported limited challenges in instituting the default, although ease of implementation varied by electronic health record vendor. Most prescribers were not aware of the default change and stated that they made prescribing decisions based on patient clinical characteristics rather than defaults. Conclusions: This pilot provides initial evidence that changing default settings can increase the number of prescriptions at the default level. This low-cost and relatively simple intervention could have an impact on opioid overprescribing. However, default settings should be selected carefully to avoid unintended consequences. PMID- 29325161 TI - Five-Year Antibody Persistence Following a Japanese Encephalitis Chimeric Virus Vaccine (JE-CV) Booster in JE-CV-Primed Children in the Philippines. AB - Clinical Trials Registration: NCT01190228. PMID- 29325162 TI - An Analysis of Adverse Events in the Rehabilitation Department: Using the Veterans Affairs Root Cause Analysis System. AB - Background: Root cause analyses (RCA) are often completed in health care settings to determine causes of adverse events (AEs). RCAs result in action plans designed to mitigate future patient harm. National reviews of RCA reports have assessed the safety of numerous health care settings and suggested opportunities for improvement. However, few studies have assessed the safety of receiving care from physical therapists, occupational therapists, or speech and language pathology pathologists. Objective: The objective of this study was to determine the types of AEs, root causes, and action plans for risk mitigation that exist within the disciplines of rehabilitation medicine. Design: This study is a retrospective, cross-sectional review. Methods: A national search of the Veterans Health Administration RCA database was conducted to identify reports describing AEs associated with physical therapy, occupational therapy, or speech and language pathology services between 2009 and May 2016. Twenty-five reports met the inclusion requirements. The reports were classified by the event type, root cause, action plans, and strength of action plans. Results: Delays in care (32.0%) and falls (28.0%) were the most common type of AE. Three AEs resulted in death. RCA teams identified deficits regarding policy and procedures as the most common root cause. Eighty-eight percent of RCA reports included strong or intermediate action plans to mitigate risk. Strong action plans included standardizing emergency terminology and implementing a dedicated line to call for an emergency response. Limitations: These data are self-reported and only AEs that are scored as a safety assessment code 3 in the system receive a full RCA, so there are likely AEs that were not captured in this study. In addition, the RCA reports are deidentified and so do not include all patient characteristics. As the Veterans Health Administration system services mostly men, the data might not generalize to non-Veterans Health Administration systems with a different patient mix. Conclusions: Care provided by rehabilitation professionals is generally safe, but AEs do occur. Based on this RCA review, the safety of rehabilitation services can be improved by implementing strong practices to mitigate risk to patients. Checklists should be considered to aid timely decision making when initiating an emergency response. PMID- 29325164 TI - Sleep duration in the United States 2003-2016: first signs of success in the fight against sleep deficiency? AB - Study Objectives: The high prevalence of chronic insufficient sleep in the population has been a concern due to the associated health and safety risks. We evaluated secular trends in sleep duration over the most recent 14-year period. Methods: The American Time Use Survey, representative of US residents >=15 years, was used to investigate trends in self-reported sleep duration and waking activities for the period 2003-2016 (N = 181335 respondents). Results: Sleep duration increased across survey years both on weekdays (+1.40 min/year) and weekends (+0.83 min/year, both p < .0001, adjusted models). This trend was observed in students, employed respondents, and retirees, but not in those unemployed or not in the labor force. On workdays, the prevalence of short (<=7 hr), average (>7-9 hr), and long (>9 hr) sleep changed by -0.44% per year (p < .0001), -0.03% per year (p = .5515), and +0.48% per year (p < .0001), respectively. The change in sleep duration was predominantly explained by respondents retiring earlier in the evening. The percentage of respondents who watched TV or read before bed-two prominent waking activities competing with sleep-decreased over the same time period, suggesting that portions of the population are increasingly willing to trade time in leisure activities for more sleep. The results also suggest that increasing online opportunities to work, learn, bank, shop, and perform administrative tasks from home freed up time that likely contributed to increased sleep duration. Conclusions: The findings indicate first successes in the fight against sleep deficiency. Public health consequences of the observed increase in the prevalence of long sleep remain unclear and warrant further investigation. PMID- 29325165 TI - Utilization of soy hulls, oat hulls, and flax meal fiber in adult broiler breeder hens. AB - A total of 72, 65-week-old broiler breeder hens (Ross 308, BW 4,190 +/- 45 g) was placed in individual cages to investigate utilization of fiber in soy hulls (SH), oat hulls (OH), and flax meal (FM). Birds were adapted to cages for 10 d prior to allocation (n = 18) to broiler breeder ration (control) or control mixed with either of the 3 fiber sources (wt/wt) added to supply equal amounts of neutral detergent fiber (NDF) ~21% and TiO2. The daily feed allocation was based on 4% BW. Feed intake (FI) was monitored daily, and grab excreta samples were taken on d 16 and 17. On d 18, all birds were weighed and killed 2 h post feeding to measure ceca digesta pH and short chain fatty acids (SCFA). Relative to the control birds, birds receiving fiber lost (P < 0.05) BW due to decreased (P < 0.05) FI. The BW changes were respectively +80, -174, -133, and -585 g/bird for control, SH, OH, and FM, and corresponding FI was 1,062, 918, 885, and 590 g/bird. Birds fed FM retained higher (P < 0.05) NDF than birds fed either SH or OH. The ceca digesta pH was lower (P < 0.05) in birds receiving added fiber relative to control. However, ceca digesta pH of FM fed birds was lower (P < 0.05) than in birds fed either SH or OH, which were in turn similar (P > 0.05). Birds fed FM had higher (P < 0.05) concentration of butyric acid than birds fed the control diets, while birds fed SH and OH had intermediate butyric acid concentration. Acetic acid and total SCFA concentrations were higher (P < 0.05) in birds fed OH diet than in birds fed control but was similar (P > 0.05) to that in birds fed either SH or FM. In conclusion, short term feeding of fibrous feed ingredients reduced BW linked to reduced FI. Fiber sources exhibited differences in utilization reflective of chemical characteristics. PMID- 29325166 TI - Drug safety and immunogenicity of tumour necrosis factor inhibitors: the story so far. AB - TNF-alpha inhibitor (TNFi) therapies have transformed the treatment of several rheumatic musculoskeletal diseases. However, the majority of TNFi's are immunogenic and consequent anti-drug antibodies formation can impact on both treatment efficacy and safety. Several controversies exist in the area of immunogenicity of TNFis and drug safety. While anti-drug antibodies to TNFis have been described in association with infusion reactions; serious adverse events (AEs) such as thromboembolic events, lupus-like syndrome, paradoxical AEs, for example, vasculitis-like events and other autoimmune manifestations have also been reported. The expansion of the biologic armamentarium, new treatment strategies such as introduction/switching to biosimilars and cost-saving approaches such as TNFi tapering, may all have a potential impact on immunogenicity and clinical sequelae. In this review we evaluate how evolution of biologics relates to drug safety and immunogenicity, appraise relevant evidence from trials, spontaneous pharmacovigilance and observational studies and outline the areas of uncertainty that still exist. PMID- 29325167 TI - A multicentre study of antifungal susceptibility patterns among 350 Candida auris isolates (2009-17) in India: role of the ERG11 and FKS1 genes in azole and echinocandin resistance. AB - Background: Candida auris has emerged globally as an MDR nosocomial pathogen in ICU patients. Objectives: We studied the antifungal susceptibility of C. auris isolates (n = 350) from 10 hospitals in India collected over a period of 8 years. To investigate azole resistance, ERG11 gene sequencing and expression profiling was conducted. In addition, echinocandin resistance linked to mutations in the C. auris FKS1 gene was analysed. Methods: CLSI antifungal susceptibility testing of six azoles, amphotericin B, three echinocandins, terbinafine, 5-flucytosine and nystatin was conducted. Screening for amino acid substitutions in ERG11 and FKS1 was performed. Results: Overall, 90% of C. auris were fluconazole resistant (MICs 32 to >=64 mg/L) and 2% and 8% were resistant to echinocandins (>=8 mg/L) and amphotericin B (>=2 mg/L), respectively. ERG11 sequences of C. auris exhibited amino acid substitutions Y132 and K143 in 77% (n = 34/44) of strains that were fluconazole resistant whereas WT genotypes, i.e. without substitutions at these positions, were observed in isolates with low fluconazole MICs (1-2 mg/L) suggesting that these substitutions confer a phenotype of resistance to fluconazole similar to that described for Candida albicans. No significant expression of ERG11 was observed, although expression was inducible in vitro with fluconazole exposure. Echinocandin resistance was linked to a novel mutation S639F in FKS1 hot spot region I. Conclusions: Overall, 25% and 13% of isolates were MDR and multi-azole resistant, respectively. The most common resistance combination was azoles and 5-flucytosine in 14% followed by azoles and amphotericin B in 7% and azoles and echinocandins in 2% of isolates. PMID- 29325169 TI - Severe Sepsis and Septic Shock Associated with Chikungunya Fever in an Adolescent. AB - Chikungunya is usually a benign disease, and little is known on the occurrence of severe clinical complications. We describe a 12-year-old boy with rapid onset septic shock and multi-organ failure associated with chikungunya fever. Severe sepsis and septic shock can be associated with chikungunya. PMID- 29325170 TI - Ecology of Paracoccidioides brasiliensis, P. lutzii and related species: infection in armadillos, soil occurrence and mycological aspects. AB - Paracoccidioides brasiliensis and the related species P. americana, P. restrepiensis, P. venezuelensis, and P. lutzii (Ascomycota, Ajellomycetaceae) are the etiological agents of paracoccidoidoimycosis (PCM), one of the most important systemic mycoses in Latin America. They are dimorphic fungi, with a mycelial life cycle in soil and a yeast phase associated with tissues of mammalian hosts. This study aimed to detect Paracoccidioides spp. in armadillo tissues and associated soil samples in three well-defined geographic areas, including the Alta Floresta, an area not only endemic for PCM in the central region of Brazil but also of probable P. lutzii occurrence, whose ecology and geographic distribution are poorly elucidated. The isolates were genotyped by sequencing ITS-rDNA and the gp43-exon-2 region, and by PCR-RFLP of alpha tubulin (tub1) gene; mycological aspects such as yeast-to-mycelial transition, growth and conidial production in soil extract agar were also evaluated. We confirmed that while armadillos are highly infected by P. brasiliensis, including multiple infections by distinct genotypes or species (P. brasiliensis and P. americana) in the same animal, the same does not hold true for P. lutzii, which in turn seems to present less capacity for mycelial growth and conidial production, when developing in a soil related condition. PMID- 29325171 TI - Maternal and Child Health Handbook use for maternal and child care: a cluster randomized controlled study in rural Java, Indonesia. AB - Background: Effectiveness of the Maternal and Child Health Handbook (MCHHB), a home-based booklet for pregnancy, delivery and postnatal/child health, was evaluated on care acquisition and home care in rural Java, a low service-coverage area. Methods: We conducted a health centre-based randomized trial, with a 2-year follow-up. Intervention included (i) MCHHB provision at antenatal care visits; (ii) records and guides by health personnel on and with the MCHHB; and (iii) sensitization of care by volunteers using the MCHHB. Results: The follow-up rate was 70.2% (183, intervention area; 271, control area). Respondents in the intervention area received consecutive MCH services including two doses of tetanus toxoid injections and antenatal care four times or more during pregnancy, professional assistance during child delivery and vitamin A supplements administration to their children, after adjustment for confounding variables and cluster effects (OR = 2.03, 95% CI: 1.19-3.47). In the intervention area, home care (continued breastfeeding; introducing complementary feeding; proper feeding order; varied foods feeding; self-feeding training; and care for cough), perceived support by husbands, and lower underweight rates and stunting rates among children were observed. Conclusion: MCHHB use promoted continuous care acquisition and care at home from pregnancy to early child-rearing stages in rural Java. PMID- 29325172 TI - PRES: Review of Histological Features. AB - Posterior reversible encephalopathy syndrome was described in 1996 as a clinical neuroimaging entity characterized by parieto-occipital watershed-region edema without overt infarction. It has been linked to hypertension, eclampsia, immunosuppressive therapies, infections, and autoimmune disorders. The condition usually has an acute onset, presents with seizures, and ameliorates within days. There have been few neuropathological studies, but in some cases, tissue damage may be more permanent. PMID- 29325163 TI - Transethnic Evaluation Identifies Low-Frequency Loci Associated With 25 Hydroxyvitamin D Concentrations. AB - Context: Vitamin D inadequacy is common in the adult population of the United States. Although the genetic determinants underlying vitamin D inadequacy have been studied in people of European ancestry, less is known about populations with Hispanic or African ancestry. Objective: The Trans-Ethnic Evaluation of Vitamin D (TRANSCEN-D) genomewide association study (GWAS) consortium was assembled to replicate genetic associations with 25-hydroxyvitamin D [25(OH)D] concentrations from the Study of Underlying Genetic Determinants of Vitamin D and Highly Related Traits (SUNLIGHT) meta-analyses of European ancestry and to identify genetic variants related to vitamin D concentrations in African and Hispanic ancestries. Design: Ancestry-specific (Hispanic and African) and transethnic (Hispanic, African, and European) meta-analyses were performed with Meta-Analysis Helper software (METAL). Patients or Other Participants: In total, 8541 African American and 3485 Hispanic American (from North America) participants from 12 cohorts and 16,124 European participants from SUNLIGHT were included in the study. Main Outcome Measures: Blood concentrations of 25(OH)D were measured for all participants. Results: Ancestry-specific analyses in African and Hispanic Americans replicated single nucleotide polymorphisms (SNPs) in GC (2 and 4 SNPs, respectively). An SNP (rs79666294) near the KIF4B gene was identified in the African American cohort. Transethnic evaluation replicated GC and DHCR7 region SNPs. Additionally, the transethnic analyses revealed SNPs rs719700 and rs1410656 near the ANO6/ARID2 and HTR2A genes, respectively. Conclusions: Ancestry-specific and transethnic GWASs of 25(OH)D confirmed findings in GC and DHCR7 for African and Hispanic American samples and revealed findings near KIF4B, ANO6/ARID2, and HTR2A. The biological mechanisms that link these regions with 25(OH)D metabolism warrant further investigation. PMID- 29325174 TI - Safety evaluation of zinc methionine in laying hens: Effects on laying performance, clinical blood parameters, organ development, and histopathology. AB - The study was conducted to investigate whether high-dose zinc methionine (Zn-Met) affected the safety of laying hens, including laying performance, hematological parameters, serum chemical parameters, organ index, and histopathology. A total of 540 20-week-old Hy-Line White laying hens was randomly allocated to 6 groups with 6 replicates of 15 birds each. Birds were fed diets supplemented with 0 (control), 70, 140, 350, 700, or 1,400 mg Zn/kg diet as Zn-Met. The experiment lasted for 8 wk after a 2-week acclimation period. Results showed that dietary supplementation with 70 or 140 mg Zn/kg diet as Zn-Met significantly increased average daily egg mass (ADEM), laying rate (LR), and feed conversion ratio (FCR) (P < 0.05) and lowered broken and soft-shelled egg ratio (BSER) (P < 0.05) in comparison with the control group; no significant differences were detected among hens fed with 0, 350, or 700 mg Zn/kg as Zn-Met (P > 0.05); hens administered 1,400 mg Zn/kg showed a significant increase in BSER and remarkable decreases in ADEM, LR, and FCR (P < 0.001). There were no significant differences among hens receiving 0, 70, 140, 350, or 700 mg Zn/kg as Zn-Met in serum chemical parameters (P > 0.05); supplementation with 1,400 mg Zn/kg as Zn-Met remarkably elevated the concentrations of serum total bilirubin (TBILI), glucose (GLU), uric acid (UA), and creatinine (CRE) (P < 0.001), and enhanced activities of serum glutamic oxalacetic transaminase (GOP) and alkaline phosphatase (AKP) (P < 0.001) compared with the control group. No significant histopathological changes were found in hens administered 0, 70, 140, 350, or 700 mg Zn/kg as Zn-Met, while significant histological lesions were observed in the heart, liver, lung, and kidney tissues of hens receiving 1,400 mg Zn/kg as Zn-Met. No significant differences were detected in hematological parameters or organ index (P > 0.05). In conclusion, a nominal Zn concentration of 700 mg/kg as Zn-Met is considered to be no-observed adverse-effect level following daily administration to hens for 56 days. PMID- 29325175 TI - Early Parental Abuse and Daily Assistance to Aging Parents With Disability: Associations With the Middle-Aged Adults' Daily Well-being. AB - Objectives: The current study examined the within-person association between providing daily assistance to aging parents with disability and adult children's daily mood in the context of early relationship with parents. Methods: We used data from 782 participants and 5,758 daily interviews from the Midlife in the United States (MIDUS) Refresher, with 248 people self-reported providing daily assistance ranging from 1 to 8 days out of the entire daily-interview period. Multilevel models were fit to examine the moderating effect of physical and emotional abuse from parents in early life on the associations between daily assistance to parents today and yesterday and daily mood. Additional analyses were conducted to examine whether the moderating effect of parental abuse remained when the assistance was provided for other family members and friends. Results: Providing assistance today and yesterday to parents had immediate and lagged associations with higher negative affect when adult children experienced childhood emotional abuse from parents. No significant findings were found for daily positive affect. The moderating effect of parental abuse became nonsignificant when the assistance was provided to other family members or friends. Discussion: Daily assistance to parents with disability needs to be examined in the context of the relationship history with parents. The impact of childhood abuse can linger long after the actual incident. Frequent early emotional abuse from parents was associated with greater distress when the middle aged provided daily assistance to their aging parents. PMID- 29325173 TI - Immunogenicity and safety of pneumococcal vaccination in patients with systemic sclerosis. AB - Objective: To study the impact of disease and treatment with DMARDs on antibody response elicited by either pneumococcal conjugate vaccine (PCV13) or pneumococcal polysaccharide vaccine (PPV23) in patients with SSc. Methods: Forty four SSc patients and 49 controls received a dose of either PCV13 or PPV23. Twelve patients were treated with DMARDs. Antibody levels to pneumococcal polysaccharides 6B and 23 F were measured before and 4-6 weeks after vaccination using ELISA. Antibody functionality was studied using opsonophagocytic assay performed on serotype 23 F. Results: Number of patients, percentage female and mean age (years) at vaccination were: 32, 94%, 57.5 years in SSc without DMARDs; 12, 100%, 55.5 years in SSc on DMARDs and 49, 63% and 50.6 years in controls. Post-vaccination antibody levels for both serotypes increased significantly in SSc without DMARDs and controls (P < 0.001), but in SSc on DMARDs only for 6B (P = 0.041). Compared with the other groups, patients with SSc receiving DMARDs had lower post-vaccination antibody levels for both serotypes. Opsonophagocytic assay increased significantly in all three groups. No significant difference in immunogenicity between PCV13 and PPV23 was seen. Conclusion: Pneumococcal vaccination using either PCV13 or PPV23 yielded satisfactory antibody response in SSc patients without DMARD treatment, but a lower response in patients treated with synthetic DMARDs. Type of pneumococcal vaccine (conjugate or polysaccharide) did not significantly influence antibody response. Trial registration: ClinicalTrials.gov, http://clinicaltrials.gov, NCT02240888. PMID- 29325177 TI - Organization's Effects With Schizoaffective Disorder. PMID- 29325176 TI - Dynamic motif occupancy (DynaMO) analysis identifies transcription factors and their binding sites driving dynamic biological processes. AB - Biological processes are usually associated with genome-wide remodeling of transcription driven by transcription factors (TFs). Identifying key TFs and their spatiotemporal binding patterns are indispensable to understanding how dynamic processes are programmed. However, most methods are designed to predict TF binding sites only. We present a computational method, dynamic motif occupancy analysis (DynaMO), to infer important TFs and their spatiotemporal binding activities in dynamic biological processes using chromatin profiling data from multiple biological conditions such as time-course histone modification ChIP-seq data. In the first step, DynaMO predicts TF binding sites with a random forests approach. Next and uniquely, DynaMO infers dynamic TF binding activities at predicted binding sites using their local chromatin profiles from multiple biological conditions. Another landmark of DynaMO is to identify key TFs in a dynamic process using a clustering and enrichment analysis of dynamic TF binding patterns. Application of DynaMO to the yeast ultradian cycle, mouse circadian clock and human neural differentiation exhibits its accuracy and versatility. We anticipate DynaMO will be generally useful for elucidating transcriptional programs in dynamic processes. PMID- 29325179 TI - Comprehensive profiles of psychological and social work factors as predictors of site-specific and multi-site pain. AB - Objective Despite the multifactoriality of work and health, studies of psychosocial work factors with pain are typically limited to a few factors. This study examined a wide range of factors to determine (i) typical combinations of work factor levels ("work situations") and (ii) whether "work situations" predicted pain complaints of six anatomic regions. Methods Questionnaires were distributed to 6175 employees twice over a two-year period. Latent profile analysis was conducted to group employees into profiles of work factor levels. Twelve work factors were measured, reflecting six themes: demands, control, role expectations, leadership, predictability, and organizational climate. Logistic and Poisson regressions compared the groups' risk of pain of the neck, head, back, shoulders, legs and arms, as well as multi-site pain (>1 pain site). Results Four latent profiles emerged based on relative levels of work factors. Profile 1 reflected relatively "desirable" levels of all factors, demonstrating the lowest risk of pain. Profile 2 exhibited the highest, and profile 3 the lowest levels of both demands and control with similar risks of pain, suggesting high levels of control were insufficient to buffer the impact of the combination of the other factors. Profile 4 exhibited "undesirable" levels of all factors and the highest risk, most notably for multi-site pain [odds ratio (OR) 2.32, 95% confidence intervals (CI) 1.80-2.85 compared with profile 1]. Conclusions Different compositions of psychosocial exposures were differentially related to pain. Future studies should take the complexity of work into account by studying comprehensive arrays of co-occurring work factors with health. PMID- 29325178 TI - Modulation of O-GlcNAc Levels in the Liver Impacts Acetaminophen-Induced Liver Injury by Affecting Protein Adduct Formation and Glutathione Synthesis. AB - Overdose of acetaminophen (APAP) results in acute liver failure. We have investigated the role of a posttranslational modification of proteins called O GlcNAcylation, where the O-GlcNAc transferase (OGT) adds and O-GlcNAcase (OGA) removes a single beta-D-N-acetylglucosamine (O-GlcNAc) moiety, in the pathogenesis of APAP-induced liver injury. Hepatocyte-specific OGT knockout mice (OGT KO), which have reduced O-GlcNAcylation, and wild-type (WT) controls were treated with 300 mg/kg APAP and the development of injury was studied over a time course from 0 to 24 h. OGT KO mice developed significantly lower liver injury as compared with WT mice. Hepatic CYP2E1 activity and glutathione (GSH) depletion following APAP treatment were not different between WT and OGT KO mice. However, replenishment of GSH and induction of GSH biosynthesis genes were significantly faster in the OGT KO mice. Next, male C57BL/6 J mice were treated Thiamet-G (TMG), a specific inhibitor of OGA to induce O-GlcNAcylation, 1.5 h after APAP administration and the development of liver injury was studied over a time course of 0-24 h. TMG-treated mice exhibited significantly higher APAP-induced liver injury. Treatment with TMG did not affect hepatic CYP2E1 levels, GSH depletion, APAP-protein adducts, and APAP-induced mitochondrial damage. However, GSH replenishment and GSH biosynthesis genes were lower in TMG-treated mice after APAP overdose. Taken together, these data indicate that induction in cellular O GlcNAcylation exacerbates APAP-induced liver injury via dysregulation of hepatic GSH replenishment response. PMID- 29325180 TI - Sertindole: EEG Analysis, Tolerability, and Clinical Efficacy. AB - INTRODUCTION: One of the common side effects of antipsychotic drugs is excessive sedation. The treatment with antipsychotics often manifests as an increase in slow wave activity in electroencephalography (EEG). The aim of this study was to analyze EEG recordings of patients treated with a non-sedative antipsychotic drug sertindole with regard to its adverse effects and clinical efficacy. PATIENTS AND METHODS: EEG recordings of 45 patients (27 females, mean age 30.1+/-8.7 years) with schizophrenia were analyzed. EEG recordings were categorized based on abnormalities severity. The clinical efficacy was rated on the Clinical Global Impression Scale. RESULTS: Abnormalities from mild to moderate were found in 29% of the group. Clinical improvement was observed in 80% of patients. Sedation/daytime sleepiness was present in 7% of patients. Other side effects were prolongation of QTc (11%, severe 4%), insomnia (9%), extrapyramidal symptoms (7%), and heart palpitations (2%). CONCLUSIONS: Patients treated with sertindole do not show side effects similar to those found during treatment with other antipsychotic drugs. Increased slow wave activity in EEG and sedation were absent in the majority of the investigated patients. PMID- 29325181 TI - ? PMID- 29325182 TI - [Cannabis in Parkinson's Disease: Hype or help?] AB - Cannabis buds and extracts as well as synthetic cannabinoids have been available on prescription to patients with severe diseases since March 2017, with the costs covered by health insurance companies.The prescription of medical marihuana is not restricted to specific symptoms and is therefore also valid for patients with Parkinson's disease. From a legal perspective, patients who are seriously ill even have the right to be treated with cannabis if standard treatment methods are unsuccessful or result in unbearable side effects. This also applies even if only a slight chance of noticeable improvement is predicted as a result of the cannabis treatment.Bearing this in mind and due to an intense media coverage of this topic, more and more patients with Parkinson's disease are requesting cannabis prescription, which is a challenging situation to their neurologists.This article provides an overview of the various cannabis products that can be prescribed, the different modes of administration and the available literature regarding motor- and non-motor symptoms in Parkinson's disease. Furthermore, the authors state their opinion on which indications cannabinoids could be useful in treating patients with Parkinson's disease or in which situation the patient could or even should be prescribed cannabinoids. Additionally, this article presents practical recommendations for the prescription of cannabinoids and patient counseling, e. g., on the effects of medical marijuana on driving capacity. PMID- 29325183 TI - Validation of the Modified Surgeon Periorbital Rating of Edema and Ecchymosis (SPREE) Questionnaire: A Prospective Analysis of Facial Plastic and Reconstructive Surgery Procedures. AB - Although periorbital edema and ecchymosis are commonly encountered after facial plastic and reconstructive surgery procedures, there is currently no validated grading scale to qualify these findings. In this study, the modified "Surgeon Periorbital Rating of Edema and Ecchymosis (SPREE)" questionnaire is used as a grading scale for patients undergoing facial plastic surgery procedures. This article aims to validate a uniform grading scale for periorbital edema and ecchymosis using the modified SPREE questionnaire in the postoperative period. This is a prospective study including 82 patients at two different routine postoperative visits (second and seventh postoperative days), wherein the staff and resident physicians, physician assistants (PAs), patients, and any accompanying adults were asked to use the modified SPREE questionnaire to score edema and ecchymosis of each eye of the patient who had undergone a plastic surgery procedure. Interrater and intrarater agreements were then examined. Cohen's kappa coefficient was calculated to measure intrarater and interrater agreement between health care professionals (staff physicians and resident physicians); staff physicians and PAs; and staff physicians, patients, and accompanying adults. Good to excellent agreement was identified between staff physicians and resident physicians as well as between staff physicians and PAs. There was, however, poor agreement between staff physicians, patients, and accompanying adults. In addition, excellent agreement was found for intraobserver reliability during same-day visits. The modified SPREE questionnaire is a validated grading system for use by health care professionals to reliably rate periorbital edema and ecchymosis in the postoperative period. Validation of the modified SPREE questionnaire may improve ubiquity in medical literature reporting and related outcomes reporting in future. PMID- 29325184 TI - [Distal Humerus Fracture in the Elderly]. AB - Distal humerus fractures show increasing incidence with age. Due to preexisting osteoporosis, the surgeon is regularly confronted with complex comminuted intraarticular fractures. The maintenance of autonomy in daily life and avoidance of permanent care dependency is a dogma in the care of geriatric patients. Accordingly, a stable post-operative situation that allows early functional post operative treatment is mandatory, especially in the elderly patient. Open reduction and stable internal fixation using double plate osteosynthesis are the current osteosynthetic standard of treatment. Modern precontoured systems with angular stability facilitate stable fixation and reduce surgery time. However, complication rates are high, despite the good functional outcomes in the few available studies which use modern plate systems in a geriatric patient population. Due to the high rate of primary stability, elbow arthroplasty has become an established treatment option for complex distal humerus fractures in elderly patients. Consequently arthroplasty registry data report a growing number of elbow replacements for fracture in recent decades. The standard implant design in the fractures in geriatric patients is the cemented "semi-constrained" total elbow arthroplasty. The disadvantages of total elbow replacement are the lifelong stringent weight restriction patients must adhere to, as well as potential long term complications associated with arthroplasty, such as aseptic loosening and periprosthetic fractures. Comparative studies with short- and medium-term follow up show overall comparable functional results for elbow arthroplasty and double plate osteosynthesis, with fewer complications and revisions as well as a shorter duration of surgery within the arthroplasty group. However, long-term outcome studies are necessary to identify potential long-term complications associated with arthroplasty and are pending. Therefore, in reconstruction of fractures of the distal humerus which allow stable fixation and early functional post operative treatment, open reduction and double plate internal fixation with modern locking plate systems remains the gold standard even for geriatric patients. PMID- 29325186 TI - Qualitative and Quantitative Radiological Measures of Fracture Healing. AB - The formulation of appropriate postoperative strategies, following fracture repair, currently involves an understanding of radiological and clinical outcome measures. This study has evaluated several modalities used to assess the progression of bone healing in a sheep tibial segmental defect model. Measures of defect optical density and volumetric data including bone density (BD), bone volume (BV) and bone mass (BM) were compared with qualitative data involving visual appraisal of radiographs [% bridging callus and modified radiographic union score tibia (mRUST)] and a clinical outcome measure (locomotory function). Percent bridging callus and mRUST measures displayed strong correlation (r = 0.999), while locomotory function was weakly correlated with bridging callus (r = 0.029) and mRUST (r = 0.046). There was moderate to strong correlation between the qualitative and quantitative data. Bone density, BV and BM showed strong correlations within this dataset (BD-BV, r = 0.814; BD-BM, r = 0.818; BV-BM, r = 1.000). Likewise, optical density measures were strongly correlated with BD (r = 0.824), BV (r = 0.957) and BM (r = 0.959). The utilization of both qualitative and quantitative data, in assessment of the progression of fracture healing, has provided valuable insight. Measures of optical density have been shown to make a substantial contribution to this assessment and which should be considered for use in studies evaluating fracture healing. PMID- 29325187 TI - In Vivo Evaluation of Biodegradability and Biocompatibility of Fe30Mn Alloy. AB - OBJECTIVES: This study aims to evaluate the biodegradability and biocompatibility of an alloy of iron and manganese (Fe30Mn) in a bone model in vivo. METHODS: Resorption of a Fe30Mn wire was compared with traditional permanent 316L stainless steel (SS) wire after bilateral transcondylar femoral implantation in 12 rats. Evaluation of biodegradation over 6 months was performed using radiography, post-mortem histology and microscopic implant surface analysis. RESULTS: Corrosion and resorption of the novel iron-manganese implant with formation of an iron oxide corrosion layer was noted on all post-mortem histological sections and macroscopic specimens (corrosion fraction of 0.84 and 0 for Fe30Mn and 316L SS, respectively). Increased bone ongrowth was observed at the wire-bone interface (bone ongrowth fraction of 0.61 and 0.34 for Fe30Mn and 316L SS, respectively). Occasionally, poorly stained newly formed bone and necrotic bone in contact with corrosion was seen. In bone marrow, Fe30Mn alloy was scored as a mild local irritant compared with 316L SS (biocompatibility score of 8.8 and 5.3, respectively). There was no evidence of systemic adverse reaction. CLINICAL SIGNIFICANCE: Resorbable iron-manganese alloys may offer a promising alternative to permanent metallic implants. Further in vivo studies to control implant resorption at a rate suitable for fracture healing and to confirm the biocompatibility and biosafety of the resorbable Fe30Mn metallic implant are necessary prior to use in clinical settings. PMID- 29325188 TI - Comparison of Radiographic Measurements of the Femur in Yorkshire Terriers with and without Medial Patellar Luxation. AB - OBJECTIVE: This article aimed to compare measurements of anatomical angles of the femurs, based on radiography, in Yorkshire Terriers without or with various grades of medial patellar luxation (MPL) based on radiography. METHODS: The skeletally mature Yorkshire Terrier dogs without MPL and with various grades of MPL were included in this prospective study. Cases with other orthopaedic disorders were excluded. For inclusion of the dog, it was required that standardized digital radiographs of both femurs in craniocaudal and axial directions were available. Measurements of the anatomical lateral proximal femoral angle, anatomical lateral distal femoral angle, femoral varus angle, anteversion angle and femoral inclination angle were performed. RESULTS: Forty two Yorkshire Terriers (84 hindlimbs) were included in the study. They were divided into five groups according to grade of MPL as healthy (n = 12), grade I (n = 9), grade II (n = 44), grade III (n = 10) and grade IV (n = 9) dogs. The anatomical lateral proximal femoral angle and anteversion angle were significantly lower in dogs with grade IV MPL, while anatomical lateral distal femoral angle and femoral varus angle were significantly higher. The femoral inclination angle values did not differ significantly. CLINICAL SIGNIFICANCE: Yorkshire Terriers affected with grade IV MPL had severe femoral deformities or femoral varus and external rotation of the distal femur. Reference range can be used as an aid in diagnosis, determining indications and surgical planning for corrective osteotomy. PMID- 29325189 TI - Comparison of Three Methods to Quantify Laxity in the Canine Hip Joint. AB - OBJECTIVES: Comparison of PennHIP and a novel method to diagnose hip laxity, called the Vezzoni modified Badertscher distension device technique. METHODS: In a total of 10 dogs, it was first assessed whether the distraction index (DI) from the PennHIP evaluation center could be reproduced by two individual observers. In the next two steps, the DI measurements made by the individual observers and the PennHIP evaluation center were compared with the laxity index (LI) measured on the Vezzoni modified Badertscher distension device view. Finally, the interobserver agreement of the DI, LI and Norberg angle was assessed and compared with classification criteria. RESULTS: The results were similar for the first three comparisons: there was no evidence for bias, the relation between DI and LI was linear and the variability was small. A comparison of the interobserver agreement showed that the measurement variability for the NA was substantial, while the reproducibility for the DI and LI was equal. CLINICAL SIGNIFICANCE: While the standard ventrodorsal hip extended radiograph is most commonly used for diagnosis and screening of canine hip dysplasia, it lacks sensitivity to diagnose laxity. To improve the identification of hip joint laxity, distraction-based radiographic techniques are helpful. The Vezzoni modified Badertscher distension device technique allows for a reliable in-house evaluation of canine hip joint laxity. PMID- 29325190 TI - Influence of Radiographic Positioning on Canine Sacroiliac and Lumbosacral Angle Measurements. AB - OBJECTIVES: To evaluate the influence of radiographic malpositioning on canine sacroiliac and lumbosacral inclination angles. METHODS: Using canine cadavers, lateral pelvic radiographs were acquired with the radiographic beam in a neutral position and then rotated 5, 10 and 15 degrees to mimic rotational malpositioning. The focal point of the beam was then focused over the abdomen and again over mid-diaphysis of the femur to mimic an abdominal or femoral radiographic study. RESULTS: Five degrees of rotational malpositioning did not influence measurements of sacroiliac or lumbosacral inclination, but malpositioning by more than 5 degrees led to a significant decrease in both sacroiliac and lumbosacral angles. Moving the focal point to the femur significantly decreased the measured lumbosacral angle. Abdominally centred radiographs had no effect on lumbosacral and sacroiliac angle measurements. CLINICAL SIGNIFICANCE: When evaluating canine lumbosacral and sacroiliac angles radiographically, pelvic rotation of more than 5 degrees should be avoided as should the use of lateral radiographs centred over the femur. PMID- 29325191 TI - Medium-Term Outcome and CT Assessment of Lateral Foraminotomy at the Lumbosacral Junction in Dogs with Degenerative Lumbosacral Stenosis. AB - OBJECTIVE: This article aims to report the medium-term clinical outcome and assess persistence of enlargement of the lumbosacral lateral intervertebral neurovascular foramen using computed tomography (CT) volumetric analysis in dogs following lateral foraminotomy. MATERIALS: Six dogs that underwent lumbosacral lateral foraminotomy on one or both sides were evaluated with CT prior to, immediately postoperatively (n = 2) and at 12 to 44 months of follow-up. Five out of six dogs had successful clinical outcomes with alleviation of pain and increased levels of activity, according to subjective assessment. Immediate postoperative CT volumetric analysis of the lateral intervertebral neurovascular foramina in two dogs indicated a 650 to 800% increase in volume in extension achieved by foraminotomy (four foramens). At subsequent follow-up, bone regrowth had occurred with reduction in foraminal volume, though in both dogs foraminal volume remained higher than preoperative values. Follow-up CT at a median of 24 months postoperatively indicated a mean 335% increase in volume of the lumbosacral lateral intervertebral neurovascular foramina in extension compared with the preoperative foraminal volume. The follow-up volume was substantially greater than the presurgical volume in four out of six dogs. CLINICAL SIGNIFICANCE: In this limited case series, lateral foraminotomy achieved persistent enlargement of the lumbosacral lateral intervertebral neurovascular foramen in the medium term, but osseous regrowth at the site was demonstrated which may limit the effectiveness of lateral foraminotomy in the longer term. One of two working dogs had recurrent clinical signs that necessitated further surgery. PMID- 29325192 TI - Single Transsacral Screw and Nut Stabilization of Bilateral Sacroiliac Luxation in 20 Cats. AB - OBJECTIVE: This article aims to describe the use of a single transsacral screw and nut in a cohort of cats with bilateral sacroiliac (SI) luxation and document its radiographic and clinical outcome. METHODS: Medical records and radiographic studies of cats with bilateral SI luxation managed with a transsacral screw and nut stabilization were reviewed. Short-term follow-up included clinical examination and radiographs. Long-term follow-up was via owner questionnaire. RESULTS: Twenty consecutive cats with bilateral SI luxation were included. Six cats (35%) had additional musculoskeletal injuries that required stabilization. Luxations were stabilized with a single 2.7 cortical self-tapping transsacral screw and nylon nut (a metallic nut was used in one case). Postoperative radiographs confirmed SI reduction in all cats and a mean pelvic canal width ratio of 1.21 (a ratio of >=1.1 was considered optimal). All cats available at follow-up examination were able to walk without signs of discomfort. Evaluation of follow-up radiographs showed maintenance of SI reduction and slight reduction of mean pelvic canal width ratio (1.18). Fourteen owner questionnaires were returned (median follow-up time of 40 months): nine cats were deemed to have normal activity and five cats were reported to have slight to mild reduced ability to jump or run. CLINICAL SIGNIFICANCE: The use of transsacral screw and nut stabilization of bilateral SI luxation in cats is a successful, repeatable and safe technique. PMID- 29325193 TI - Stabilization of Olecranon Fractures by Tension Band Wiring or Plate Osteosynthesis: A Retrospective Study of 41 Cases. AB - OBJECTIVES: This article aimed to describe olecranon fracture in dogs and cats and their stabilization with tension band wiring or plate osteosynthesis, and to evaluate complications associated with each technique. METHODS: Medical records of cats and dogs that had been surgically treated for olecranon fractures with either tension band wiring or plate osteosynthesis were retrospectively reviewed. The surgical technique, complications and long-term outcomes were assessed. RESULTS: Forty-one olecranon fractures were included. Fractures were articular, comminuted and open in 90, 31 and 27% of cases, respectively. Tension band wiring and plate osteosynthesis were performed in 22 and 19 fractures, respectively. Complications occurred more commonly after tension band wiring (74%) compared with plate osteosynthesis (27%) (p = 0.002) and these were probably related to it being used in comminuted fractures (p = 0.01) or to errors in technique. Minor complications included Kirschner wires migration (n = 5), pain (n = 3), osteomyelitis (n = 3), skin breakdown (n = 3) and seroma (n = 1). Implant failure requiring further fixation (n = 4) was observed only in the tension band wiring group. Other major complications included skin wound debridement and closure (n = 1) and chronic lameness requiring implant removal (n = 7). Long-term functional outcomes were excellent regardless of the technique used. CLINICAL SIGNIFICANCE: Plate osteosynthesis should be performed for olecranon fracture repair if technically feasible. PMID- 29325194 TI - Comparison of Rotation Force to Maintain Acetabular Ventroversion after Double Pelvic Osteotomy and 2.5 Pelvic Osteotomy in a Canine Cadaveric Model. AB - OBJECTIVE: The aim of this article was to compare the force required to maintain the acetabular ventroversion after double pelvic osteotomy (DPO) and modified triple pelvic osteotomy (2.5PO). METHODS: Unilateral DPO (group A) and unilateral modified DPO (group B = 2.5PO) were performed on cadaveric canine pelves (n = 10/group). The twisting moment required to maintain fragment position for DPO and 2.5DPO was compared. RESULTS: Mean twisting moment for the DPO group [5.92 N/m +/- 2.59 (range, 2.61-12.17 N/m)] and the 2.5PO group [2.11 N/m +/- 0.93 (range, 0.63 -3.85 N/m)] was significantly different (p < 0.01). CONCLUSION: Dorsal cortex osteotomy of the ischium decreases the acetabular segment rotation force. Decreased force may facilitate acetabular rotation during DPO procedure. PMID- 29325195 TI - Common Calcaneal Tenorrhaphy Revision Using a Central Gastrocnemius Turnover Aponeurotic Flap Technique in a Cat. AB - A 5-year-old, male castrated, domestic short hair cat was referred to the authors' clinic because of wound dehiscence and exposure of tendon stumps after tenorrhaphy of the Achilles tendon. Surgical revision was done using an aponeurotic flap taken from the proximal stump of the Achilles tendon and sutured over the two tendon portions. This technique has been described in humans, but, to the authors' knowledge, this has not been reported in cats. Modified type II external fixation was used to maintain the tarsocrural joint in extension until tendon healing was confirmed ultrasonographically 35 days postoperatively. Clinical and ultrasonographic evaluation 60 and 120 days postoperatively showed normal limb function and good tendon healing. Long-term follow-up examination 8 years postoperatively revealed that the cat was in good health with normal gait and activity level. PMID- 29325197 TI - [From the History of the German Society of Internal Medicine (DGIM) - Part 1: The DGIM in the Nazi era]. PMID- 29325196 TI - Ventral Slot Surgery to Manage Cervical Intervertebral Disc Disease in Three Cats. AB - OBJECTIVE: This case series describes the clinical presentation, management and outcome of three cats diagnosed with cervical intervertebral disc disease that underwent decompressive ventral slot surgery. METHODS: This is a retrospective case series evaluating client-owned cats undergoing a ventral slot surgical procedure to manage cervical intervertebral disc disease (n = 3). RESULTS: A routine ventral slot surgery was performed in each case without complication, resulting in postoperative neurological improvement in all three cases. CLINICAL SIGNIFICANCE: Ventral slot surgery can be used to achieve effective cervical spinal cord decompression with a good long-term outcome in the management of feline cervical intervertebral disc herniation. To avoid creating an excessively wide slot with the potential for postoperative complications including vertebral sinus haemorrhage, vertebral instability or ventral slot collapse, careful surgical planning was performed with preoperative measurement of the desired maximum slot dimensions. PMID- 29325198 TI - [Hygienic Inspections of Ventilation Systems Under Resting Conditions (According to DIN 1946-4:1999-03) - A Retrospective Assessment]. AB - BACKGROUND: Hygienic and microbiologically sterile air quality is essential for successful guideline-based work in operating theatres. To ensure clean air and to reduce contamination during surgery, ventilation systems are indispensable. Ventilation systems should be especially designed to keep the number of particles and germs under statutory limits. Therefore, they must be operated to recognised standards of good practice and be periodically inspected and maintained. The objective of this study was to prove, through the analysis of observation outside surgery time (rest condition), the effects of ventilation systems on air quality in a medical facility. METHODS: Measurements were taken in 34 operating theatres annually over a period of ten years outside surgery time (resting condition) but with the air ventilation system operating under full load. 29 operating theatres were provided with laminar air flow and five theatres with turbulent air flow systems. In each operating theatre, air cleanliness was analysed by measuring the amount of airborne particles and airborne germs. Measuring points were determined 10 mm beneath the supply-air ceiling in the centre of the operating theatre and at one position outside the supply-air ceiling. RESULTS: The number of airborne particles at the supply-air ceiling was between 0/m3 and 4,441/m3 of air and, as such, the limiting factor was never exceeded. However, airborne germ measurements of between 0 CFU/m3 and 200 CFU/m3 (CFU: colony forming units) demonstrated that the limiting factor for this criterion was exceeded in 10.9% of occasions. In general, the values in the middle of the room were higher than at the supply-air ceiling. There were significant differences (p < 0.001) between the values at the supply-air ceiling, the surgery table and the values outside the supply-air ceiling. CONCLUSIONS: The results show the positive impact of ventilation systems on the air cleanliness in operating theatres. However, laminar airflow systems seem to create cleaner air than conventional ventilation systems. The size of the supply-air ceiling plays an important role in the prevention of the contamination of the staff, the surgical field, the instrument table and the patient. However, the effect on surgical site infections has not been verified. Improved measuring methods should be considered. PMID- 29325199 TI - [Efficacy and Safety of Indwelling Pleural Catheters]. AB - In symptomatic malignant pleural effusions, mostly in a palliative situation, therapeutic procedures should be chosen to improve dyspnoea and the concomitant impairment of quality of life. Indwelling pleural catheters (IPC) have played an increasing role in recent years. The efficacy and safety of this method have not been adequately clarified under real-life clinical conditions. 94 patients, in whom IPC had been implanted because of a clinical indication, were analysed retrospectively with respect to efficacy and safety, together with patient characteristics, peri- and postinterventional complications, e.g. infections or pneumothorax, and long-term follow-up - with special emphasis on the occurrence of a pleurodesis. Overall, 89.5% (n = 85) of the patients received an IPC due to a recurrent pleural effusion caused by a malignant primary disease. The average duration of hospitalisation for patients did not decease as a result of their incurable condition and was 3.29 days. In 21.2% (n = 20) of the patients, pleurodesis occurred. Method-related complications arose for 33.2% (n = 32) of the patients, although further treatment was only needed in 8 patients. Late complications developed for 9 of the patients observed. The average survival period after implantation was 88.72 days. The results show that IPC is a technically straightforward, minimally invasive alternative to recurrent punctures or other methods of pleurodesis. A major benefit is the possibility of outpatient care. PMID- 29325200 TI - Three-Component Domino Knoevenagel/Vinylogous Michael Reaction: Entry to Challenging o-Terphenyls. AB - An unprecedented organocatalytic three-component domino Knoevenagel/vinylogous Michael reaction starting from simple enolizable aldehydes, malononitrile, and nitroolefins is reported. This facile two-step domino process provides a straightforward stereoselective route to multifunctional vinyl malononitrile products (up to 82 % yield, 85:15 d.r.) containing a nitroalkane moiety, and contributes to the development of sustainability and atom economy. The application of the obtained domino products for synthesis of highly functionalized o-terphenyls (of high interest for materials science and medicinal chemistry) through subsequent new three-step domino reaction involving cyclization-tautomerization-aromatization steps, has been demonstrated. PMID- 29325201 TI - Active Intracellular Delivery of a Cas9/sgRNA Complex Using Ultrasound-Propelled Nanomotors. AB - Direct and rapid intracellular delivery of a functional Cas9/sgRNA complex using ultrasound-powered nanomotors is reported. The Cas9/sgRNA complex is loaded onto the nanomotor surface through a reversible disulfide linkage. A 5 min ultrasound treatment enables the Cas9/sgRNA-loaded nanomotors to directly penetrate through the plasma membrane of GFP-expressing B16F10 cells. The Cas9/sgRNA is released inside the cells to achieve highly effective GFP gene knockout. The acoustic Cas9/sgRNA-loaded nanomotors display more than 80 % GFP knockout within 2 h of cell incubation compared to 30 % knockout using static nanowires. More impressively, the nanomotors enable highly efficient knockout with just 0.6 nm of the Cas9/sgRNA complex. This nanomotor-based intracellular delivery method thus offers an attractive route to overcome physiological barriers for intracellular delivery of functional proteins and RNAs, thus indicating considerable promise for highly efficient therapeutic applications. PMID- 29325202 TI - Interfacial Mineral Fusion and Tubule Entanglement as a Means to Harden a Bone Augmentation Material. AB - A new bone augmenting material is reported, which is formed from calcium-loaded hydrogel-based spheres. On immersion of these spheres in a physiological medium, they become surrounded with a sheath of precipitate, which ruptures due to a build-up in osmotic pressure. This results in the formation of mineral tubes that protrude from the sphere surface. When brought into close contact with one another, these spheres become fused through the entanglement and subsequent interstitial mineralization of the mineral tubules. The tubular calcium phosphate induces the expression of osteogenic genes (runt-related transcription factor 2 (RUNX2), transcription factor SP7 (SP7), collagen type 1 alpha 1 (COL1A1), and bone gamma-carboxyglutamic acid-containing protein (BGLAP)) and promotes the formation of mineral nodules in preosteoblast cultures comparable to an apatitic calcium phosphate phase. Furthermore, alkaline phosphatase (ALP) is significantly upregulated in the presence of tubular materials after 10 d in culture compared with control groups (p < 0.001) and sintered apatite (p < 0.05). This is the first report of a bioceramic material that is formed in its entirety in situ and is therefore likely to provide a better proxy for biological mineral than other existing synthetic alternatives to bone grafts. PMID- 29325203 TI - Fluorescent Diarylethene Photoswitches-A Universal Tool for Super-Resolution Microscopy in Nanostructured Materials. AB - Super-resolution fluorescence microscopy allows for unprecedented in situ visualization of biological structures, but its application to materials science has so far been comparatively limited. One of the main reasons is the lack of powerful dyes that allow for labeling and photoswitching in materials science systems. In this study it is shown that appropriate substitution of diarylethenes bearing a fluorescent closed and dark open form paves the way for imaging nanostructured materials with three of the most popular super-resolution fluorescence microscopy methods that are based on different concepts to achieve imaging beyond the diffraction limit of light. The key to obtain optimal resolution lies in a proper control over the photochemistry of the photoswitches and its adaption to the system to be imaged. It is hoped that the present work will provide researchers with a guide to choose the best photoswitch derivative for super-resolution microscopy in materials science, just like the correct choice of a Swiss Army Knife's tool is essential to fulfill a given task. PMID- 29325204 TI - A Transformable Chimeric Peptide for Cell Encapsulation to Overcome Multidrug Resistance. AB - Multidrug resistance (MDR) remains one of the biggest obstacles in chemotherapy of tumor mainly due to P-glycoprotein (P-gp)-mediated drug efflux. Here, a transformable chimeric peptide is designed to target and self-assemble on cell membrane for encapsulating cells and overcoming tumor MDR. This chimeric peptide (C16 -K(TPE)-GGGH-GFLGK-PEG8 , denoted as CTGP) with cathepsin B-responsive and cell membrane-targeting abilities can self-assemble into nanomicelles and further encapsulate the therapeutic agent doxorubicin (termed as CTGP@DOX). After the cleavage of the Gly-Phe-Leu-Gly (GFLG) sequence by pericellular overexpressed cathepsin B, CTGP@DOX is dissociated and transformed from spherical nanoparticles to nanofibers due to the hydrophilic-hydrophobic conversion and hydrogen bonding interactions. Thus obtained nanofibers with cell membrane-targeting 16-carbon alkyl chains can adhere firmly to the cell membrane for cell encapsulation and restricting DOX efflux. In comparison to free DOX, 45-time higher drug retention and 49-fold greater anti-MDR ability of CTGP@DOX to drug-resistant MCF-7R cells are achieved. This novel strategy to encapsulate cells and reverse tumor MDR via morphology transformation would open a new avenue towards chemotherapy of tumor. PMID- 29325205 TI - A Top-Down Strategy toward SnSb In-Plane Nanoconfined 3D N-Doped Porous Graphene Composite Microspheres for High Performance Na-Ion Battery Anode. AB - Engineering of 3D graphene/metal composites with ultrasmall sized metal and robust metal-graphene interfacial interaction for energy storage application is still a challenge and rarely reported. In this work, a facile top-down strategy is developed for the preparation of SnSb-in-plane nanoconfined 3D N-doped porous graphene networks for sodium ion battery anodes, which are composed of several tens of interconnected empty N-graphene boxes in-plane firmly embedded with ultrasmall SnSb nanocrystals. The all-around encapsulation (plane-to-plane contact) architecture that provides a large interface between N-graphene and SnSb nanocrystal not only effectively enhances the electron conductivity and structural integrity of the overall electrode, but also offers excess interfacial sodium storage, thus leading to much enhanced high-rate sodium storage capacity and stability, which has been proven by both experimental results and first principles simulations. Moreover, this top-down strategy can enable new paths to the low-cost and high-yield synthesis of 3D graphene/metal composites for applications in energy-related fields and beyond. PMID- 29325207 TI - Developing a Journal's Influence Without Impact Factor Madness: Quality in Shape. PMID- 29325206 TI - Cyclodextrin-Sandwiched Hexaphyrin Hybrids: Side-to-Side Cavity Coupling Switched by a Temperature- and Redox-Responsive Central Device. AB - Access to allosteric enzyme mimics that ideally associate communicating compartments for catalysis and regulation is still challenging. Whereas a sandwich "cavity-catalyst-cavity" approach, developed mainly with cyclodextrins and porphyrins, appears promising, its counterpart with hexaphyrins featuring rich conformation, aromaticity, and coordination behavior has not been prospected at all. We thus developed sandwich hybrids made of two cyclodextrins triply linked on each side of a hexaphyrin. The latter displays switchable oxidation states with interconvertible conformations (28pi antiaromatic and 26pi aromatic, each adopting rectangular and dumbbell forms). These four states are connected by two orthogonal switches under redox [aromaticity] and thermal [shape] control. This leads to twin compartmentalized confined spaces either locked or unlocked depending on the conformation of the hexaphyrin, and the reversibility of the lock<->unlock transition relies on the aromaticity of the hexaphyrin. The sandwiched heteroannulene thus behaves as an unprecedented dual-responsive double latched device. Such hybrid systems open interesting perspectives in the allosteric regulation of receptors, catalysts, and machineries. PMID- 29325208 TI - Bioinspired Universal Flexible Elastomer-Based Microchannels. AB - Flexible and stretchable microscale fluidic devices have a broad range of potential applications, ranging from electronic wearable devices for convenient digital lifestyle to biomedical devices. However, simple ways to achieve stable flexible and stretchable fluidic microchannels with dynamic liquid transport have been challenging because every application for elastomeric microchannels is restricted by their complex fabrication process and limited material selection. Here, a universal strategy for building microfluidic devices that possess exceptionally stable and stretching properties is shown. The devices exhibit superior mechanical deformability, including high strain (967%) and recovery ability, where applications as both strain sensor and pressure-flow regulating device are demonstrated. Various microchannels are combined with organic, inorganic, and metallic materials as stable composite microfluidics. Furthermore, with surface chemical modification these stretchable microfluidic devices can also obtain antifouling property to suit for a broad range of industrial and biomedical applications. PMID- 29325209 TI - Branch-Like Iron Nitride and Carbide Magnetic Fibres Using an Electrospinning Technique. AB - Fe3 N and Fe3 C nanocomposites have a wide range of applications thanks to their ceramic nature, magnetic properties, conductivity and catalytic activity, just to cite some. In many fields optimal performances are ensured by crystallinity, homogeneity and hierarchical organization. In the present paper, crystalline, magnetic and well-defined nanofibres of iron nitride and iron carbide/carbon nanocomposite with tunable composition and size were prepared via electrospinning. The starting polymeric material was directly electrospun into fibres and then calcined, leading to a highly homogeneous final product of nanoparticles along the fibres (both outside and inside). A mechanistic study was undertaken and here discussed. The magnetic properties of the as-prepared nanofibres were also studied. The as-prepared final fibre mat composite material can serve as active catalyst, for example, in oxygen reduction reaction (where nanofibres outperformed mere nanoparticles), it can serve as functional support for classical catalytic processes or, thanks to its magnetic properties, can be applied in magnetic-field assisted separation or as magneto-active membranes. PMID- 29325210 TI - A New Co-P Nanocomposite with Ultrahigh Relaxivity for In Vivo Magnetic Resonance Imaging-Guided Tumor Eradication by Chemo/Photothermal Synergistic Therapy. AB - Design of new nanoagents that intrinsically have both diagnostic imaging and therapeutic capabilities is highly desirable for personalized medicine. In this work, a novel nanotheranostic agent is fabricated based on polydopamine (PDA) functionalized Co-P nanocomposites (Co-P@PDA) for magnetic resonance imaging (MRI)-guided combined photothermal therapy and chemotherapy. The ultrahigh relaxivity of 224.61 mm-1 s-1 can enable Co-P@PDA to be applied as an excellent contrast agent for MRI in vitro and in vivo, providing essential and comprehensive information for tumor clinical diagnosis. Moreover, Co-P@PDA exhibit excellent photothermal performance owing to the strong near-infrared (NIR) absorbance of both Co-P nanocomposite and PDA. Highly effective ablation of tumors is achieved in a murine tumor model because the NIR laser not only induces photothermal effects but also triggers the chemotherapeutic drug on-demand release, which endows the Co-P@PDA with high curative effects but little toxicity and few side effects. These findings demonstrate that Co-P@PDA are promising agents for highly effective and precise antitumor treatment and warrant exploration as novel theranostic nanoagents with good potential for future clinical translation. PMID- 29325211 TI - Uptake and Intracellular Fate of Engineered Nanoparticles in Mammalian Cells: Capabilities and Limitations of Transmission Electron Microscopy-Polymer-Based Nanoparticles. AB - In order to elucidate mechanisms of nanoparticle (NP)-cell interactions, a detailed knowledge about membrane-particle interactions, intracellular distributions, and nucleus penetration capabilities, etc. becomes indispensable. The utilization of NPs as additives in many consumer products, as well as the increasing interest of tailor-made nanoobjects as novel therapeutic and diagnostic platforms, makes it essential to gain deeper insights about their biological effects. Transmission electron microscopy (TEM) represents an outstanding method to study the uptake and intracellular fate of NPs, since this technique provides a resolution far better than the particle size. Additionally, its capability to highlight ultrastructural details of the cellular interior as well as membrane features is unmatched by other approaches. Here, a summary is provided on studies utilizing TEM to investigate the uptake and mode-of-action of tailor-made polymer nanoparticles in mammalian cells. For this purpose, the capabilities as well as limitations of TEM investigations are discussed to provide a detailed overview on uptake studies of common nanoparticle systems supported by TEM investigations. Furthermore, methodologies that can, in particular, address low-contrast materials in electron microscopy, i.e., polymeric and polymer-modified nanoparticles, are highlighted. PMID- 29325212 TI - Enhancing Molecular n-Type Doping of Donor-Acceptor Copolymers by Tailoring Side Chains. AB - In this contribution, for the first time, the molecular n-doping of a donor acceptor (D-A) copolymer achieving 200-fold enhancement of electrical conductivity by rationally tailoring the side chains without changing its D-A backbone is successfully improved. Instead of the traditional alkyl side chains for poly{[N,N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6 diyl](NDI)-alt-5,5'-(2,2'-bithiophene)} (N2200), polar triethylene glycol type side chains is utilized and a high electrical conductivity of 0.17 S cm-1 after doping with (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2 yl)phenyl)dimethylamine is achieved, which is the highest reported value for n type D-A copolymers. Coarse-grained molecular dynamics simulations indicate that the polar side chains can significantly reduce the clustering of dopant molecules and favor the dispersion of the dopant in the host matrix as compared to the traditional alkyl side chains. Accordingly, intimate contact between the host and dopant molecules in the NDI-based copolymer with polar side chains facilitates molecular doping with increased doping efficiency and electrical conductivity. For the first time, a heterogeneous thermoelectric transport model for such a material is proposed, that is the percolation of charge carriers from conducting ordered regions through poorly conductive disordered regions, which provides pointers for further increase in the themoelectric properties of n-type D-A copolymers. PMID- 29325213 TI - A New Colorimetric Platform for Protein Detection Based on Recognition-Induced Cascade of Polymeric Nanoparticles Disassembly. AB - Despite great progress, it is still of high interest to explore new homogeneous assays for simple, visual, and selective protein detection. Herein, one new colorimetric sensor has been developed for visual detection of protein by using polymeric micelles as a sensing scaffold and the molecular recognition between protein and the ligand on the surface of the polymeric micelles as the driving force to trigger the readout of the detection signal. The polymeric micelles formed via the self-assembly of the amphiphilic block polymer biotin-labeled poly(ethylene glycol)-block-poly(3-acryl aminophenylboronic acid) are endowed with colorful feature by incorporation of alizarin red S (ARS) into the hydrophobic core. Based on the response to streptavidin recognition, these micelles are further disintegrated through the competitive binding of alpha cyclodextrin with boronic acid for disassociation of ARS, which achieves orange yellow to pink-purple transition in 2 h. This work will open the way to develop one new mix-and-measure, visual, and homogeneous assay. PMID- 29325214 TI - A spike in mechanotransductive adenosine triphosphate release from red blood cells in microfluidic constrictions only occurs with rare donors. AB - OBJECTIVE: Wan et al (Proc Natl Acad Sci USA, 105, 2008, 16432) demonstrated that RBCs rapidly and transiently release a spike of 300% more ATP shortly downstream from a short microfluidic constriction where the cells experience a sudden increase in shear stress. More recent work by Cinar et al (Proc Natl Acad Sci USA, 112, 2015, 11783), however, yielded no evidence for a similar spike in ATP release downstream of the constriction. Our aim was to determine whether a transient spike in mechanotransduction is the typical response of RBCs to the sudden onset of increased shear. METHODS: We investigate ATP release downstream of a microfluidic constriction for 15 participants using a luciferase-based photoluminescent assay. RESULTS: While we observe mechanotransductive ATP release from blood drawn from all donors, we find evidence of a spike in ATP concentration after the microfluidic constriction for only 2 of 15 participants. No clear trends in ATP release are found with respect to the magnitude of the applied shear stress, or to the gender, age, or physical activity (Baecke) index of the donor. CONCLUSIONS: In aggregate, all data acquired to date suggest that a spike in mechanotransductive ATP due to a suddenly applied increase in shear stress occurs in blood drawn from only 14% of the population. PMID- 29325215 TI - Oplopane Sesquiterpenes from Ligularia knorringiana and Their Anti-Complementary Activity. AB - Three new oplopane sesquiterpenes, knorringianalarins D - F (1 - 3, respectively), and five known analogues (4 - 8, respectively), were isolated from the roots and rhizomes of Ligularia knorringiana. The structures of three new compounds were identified as 4-acetoxy-11alpha,12-epoxy-2beta-hydroxy-3beta-(2 methylbutyryloxy)-9alpha-(4-methylsenecioyloxy)oplop-10(14)-ene (1), 3beta,4 diacetoxy-9alpha-(4-acetoxy-4-methylsenecioyloxy)-11alpha,12-epoxy-8alpha-(2 methylbutyryloxy)oplop-10(14)-ene (2), and (1R,5R,6R,7R,9R)-5,9,11-trihydroxy 4,15-dinoroplop-10(14)-en-3-one (3) based on spectroscopic methods including 1D- and 2D-NMR, mass spectrometry, and CD spectroscopy techniques. All compounds were evaluated for their anti-complementary activity on the classical pathway of the complement system in vitro. Among which, three oplopane sesquiterpenes (3, 7, and 8) exhibited better anti-complementary effects with CH50 values ranging from 0.33 to 0.89 mm, which are plausible candidates for developing potent anti complementary agents. PMID- 29325217 TI - Neutrophil infiltration to the brain is platelet-dependent, and is reversed by blockade of platelet GPIbalpha. AB - Neutrophils are key components of the innate immune response, providing host defence against infection and being recruited to non-microbial injury sites. Platelets act as a trigger for neutrophil extravasation to inflammatory sites but mechanisms and tissue-specific aspects of these interactions are currently unclear. Here, we use bacterial endotoxin in mice to trigger an innate inflammatory response in different tissues and measure neutrophil invasion with or without platelet reduction. We show that platelets are essential for neutrophil infiltration to the brain, peritoneum and skin. Neutrophil numbers do not rise above basal levels in the peritoneum and skin and are decreased (~60%) in the brain when platelet numbers are reduced. In contrast neutrophil infiltration in the lung is unaffected by platelet reduction, up-regulation of CXCL-1 (2.4-fold) and CCL5 (1.4-fold) acting as a compensatory mechanism in platelet-reduced mice during lung inflammation. In brain inflammation targeting platelet receptor GPIbalpha results in a significant decrease (44%) in platelet mediated neutrophil invasion, while maintaining platelet numbers in the circulation. These results suggest that therapeutic blockade of platelet GPIbalpha could limit the harmful effects of excessive inflammation while minimizing haemorrhagic complications of platelet reduction in the brain. The data also demonstrate the ability to target damaging brain inflammation in stroke and related disorders without compromising lung immunity and hence risk of pneumonia, a major complication post stroke. In summary, our data reveal an important role for platelets in neutrophil infiltration to various tissues, including the brain, and so implicate platelets as a key, targetable component of cerebrovascular inflammatory disease or injury. PMID- 29325216 TI - Obstetrical providers' preferred mode of delivery and attitude towards non medically indicated caesarean sections: a cross-sectional study. AB - OBJECTIVE: To describe obstetrical providers' delivery preferences and attitudes towards caesarean section without medical indication, including on maternal request, and to examine the association between provider characteristics and preferences/attitudes. DESIGN: Cross-sectional study. SETTING: Two public and two private hospitals in Argentina. POPULATION: Obstetrician-gynaecologists and midwives who provide prenatal care and/or labour/delivery services. METHODS: Providers in hospitals with at least 1000 births per year completed a self administered, anonymous survey. MAIN OUTCOME MEASURES: Provider delivery preference for low-risk women, perception of women's preferred delivery method, support for a woman's right to choose her delivery method and willingness to perform caesarean section on maternal request. RESULTS: 168 providers participated (89.8% coverage rate). Providers (93.2%) preferred a vaginal delivery for their patients in the absence of a medical indication for caesarean section. Whereas 74.4% of providers supported their patient's right to choose a delivery method in the absence of a medical indication for caesarean section and 66.7% would perform a caesarean section upon maternal request, only 30.4% would consider a non-medically indicated caesarean section for their own personal delivery or that of their partner. In multivariate adjusted analysis, providers in the private sector [odds ratio (OR) 4.70, 95% CI 1.19-18.62] and obstetrician gynaecologists (OR 4.37, 95% CI 1.58-12.09) were more willing than either providers working in the public/both settings or midwives to perform a caesarean section on maternal request. CONCLUSIONS: Despite the ethical debate surrounding non-medically indicated caesarean sections, we observe very high levels of support, especially by providers in the private sector and obstetrician gynaecologists, as aligned with the high caesarean section rates in Argentina. TWEETABLE ABSTRACT: Non-medically indicated c-section? 74% of sampled Argentine OB providers support women's right to choose. PMID- 29325218 TI - EQUAL Candida Score: An ECMM score derived from current guidelines to measure QUAlity of Clinical Candidaemia Management. AB - Candida species frequently cause blood stream infections and are reported to be the third to tenth most commonly isolated pathogens. Guidelines and standardised treatment algorithms provided by professional organisations aim to facilitate decision-making regarding diagnosis, management and treatment of candidaemia. In routine clinical practise, however, it may be challenging to comply with these guidelines. The reasons include lack of familiarity or feasibility to adherence, but also their length and complexity. There is no tool to measure guideline adherence currently. To provide such a tool, we reviewed the current guidelines provided by the European Society for Clinical Microbiology and Infectious Diseases (ESCMID) and by the Infectious Diseases Society of America (IDSA), and selected the strongest recommendations for management quality as the bases for our scoring tool. Factors incorporated were diagnostic (blood cultures, echocardiography, ophthalmoscopy, species identification) and follow-up procedures (repeat blood cultures until negative result) as well as key treatment parameters (echinocandin treatment, step down to fluconazole depending on susceptibility result, CVC removal). The EQUAL Candida Score weighs and aggregates factors recommended for the ideal management of candidaemia and provides a tool for antifungal stewardship as well as for measuring guideline adherence. PMID- 29325219 TI - Molecular basis of the flavin-based electron-bifurcating caffeyl-CoA reductase reaction. AB - Flavin-based electron bifurcation (FBEB) is a recently discovered mode of energy coupling in anaerobic microorganisms. The electron-bifurcating caffeyl-CoA reductase (CarCDE) catalyzes the reduction of caffeyl-CoA and ferredoxin by oxidizing NADH. The 3.5 A structure of the heterododecameric Car(CDE)4 complex of Acetobacterium woodii, presented here, reveals compared to other electron transferring flavoprotein/acyl dehydrogenase family members an additional ferredoxin-like domain with two [4Fe-4S] clusters N-terminally fused to CarE. It might serve, in vivo, as specific adaptor for the physiological electron acceptor. Kinetic analysis of a CarCDE(?Fd) complex indicates the bypassing of the ferredoxin-like domain by artificial electron acceptors. Site-directed mutagenesis studies substantiated the crucial role of the C-terminal arm of CarD and of ArgE203, hydrogen-bonded to the bifurcating FAD, for FBEB. PMID- 29325220 TI - Profile, risk factors and outcome of acute kidney injury in paediatric acute-on chronic liver failure. AB - BACKGROUND & AIMS: There are no studies on acute kidney injury in paediatric acute-on-chronic liver failure. This study was planned with aim to describe the clinical presentation and outcome of acute kidney injury among paediatric acute on-chronic liver failure patients. METHODS: Data of all children 1-18 years of age presenting with acute chronic liver failure (Asia pacific association for the study of the liver definition) was reviewed. Acute kidney injury was defined as per Kidney Diseases-Improving Global Outcomes guidelines. Poor outcome was defined as death or need for liver transplant within 3 months of development of acute kidney injury. RESULTS: A total of 84 children with acute-on-chronic liver failure were presented to us in the study period. Acute kidney injury developed in 22.6% of patients with acute-on-chronic liver failure. The median duration from acute-on-chronic liver failure to development of acute kidney injury was 4 weeks (Range: 2-10 weeks). The causes of acute kidney injury were hepatorenal syndrome (31.6%), sepsis (31.6%), nephrotoxic drugs (21%), dehydration (10.5%) and bile pigment related acute tubular necrosis in one patient. On univariate analysis, higher baseline bilirubin, higher international normalized ratio, higher paediatric end stage liver disease, presence of systemic inflammatory response syndrome and presence of spontaneous bacterial peritonitis had significant association with presence of acute kidney injury. On logistic regression analysis, presence of systemic inflammatory response syndrome (adjusted OR: 8.659, 95% CI: 2.18-34.37, P = .002) and higher baseline bilirubin (adjusted OR: 1.07, 95% CI: 1.008-1.135, P = .025) were independently associated with presence of acute kidney injury. Of the patients with acute kidney injury, 5(26.3%) survived with native liver, 10(52.6%) died and 4 (21.1%) underwent liver transplantation. CONCLUSION: Acute kidney injury developed in 22.6% of children with acute-on-chronic liver failure. Bilirubin more than 17.7 mg/dL and presence of systemic inflammatory response syndrome were high risk factors for acute kidney injury. Development of acute kidney injury in a child with acute-on chronic liver failure suggests poor outcome and need for early intervention. PMID- 29325221 TI - Naphthalene Derivatives and Quinones from Ventilago denticulata and Their Nitric Oxide Radical Scavenging, Antioxidant, Cytotoxic, Antibacterial, and Phosphodiesterase Inhibitory Activities. AB - New naphthalene derivatives (1 and 2) and a new isomer (3) of ventilagolin, together with known anthraquinones, chrysophanol (4), physcion or emodin 3-methyl ether (5), and emodin (6), were isolated from vines of Ventilago denticulata. The isolated compounds exhibited cytotoxic activity with IC50 values of 1.15 - 40.54 MUg/ml. Compounds 1 - 3 selectively exhibited weak antibacterial activity (MIC values of 200.0 - 400.0 MUg/ml), while emodin (6) displayed moderate antibacterial activity with MIC value of 25.0 MUg/ml. The isolated compounds showed nitric oxide and DPPH radical scavenging activities. Compounds 1 - 3 and 6 exhibited weak xanthine oxidase inhibitory activity, while emodin (6) acted as an aromatase inhibitor with the IC50 value of 10.1 MUm. Compounds 1 and 2 exhibited phosphodiesterase 5 inhibitory activity with IC50 values of 8.28 MUm and 6.48 MUm, respectively. PMID- 29325222 TI - Pneumonia as a cardiovascular disease. AB - Community-acquired pneumonia (CAP) is an important cause of death around the globe. Up to 30% of patients admitted to hospital for CAP develop cardiovascular complications (i.e. new/worsening heart failure, new/worsening arrhythmias, myocardial infarctions and/or strokes), acutely and up to 10 years thereafter. Cardiac complications result from complex interactions between preexisting conditions, relative ischaemia, upregulation of the sympathetic system, systemic inflammation and direct pathogen-mediated damage to the cardiovascular system. The exact mechanisms underlying the direct host-pathogen interactions are of great interest to identify potential therapeutic and preventative targets for CAP. In this review, we summarize the epidemiological data, risk factors and the pathogen-driven cardiovascular damage affecting patients with CAP. PMID- 29325223 TI - Maternal thyroid hormone insufficiency during pregnancy and risk of neurodevelopmental disorders in offspring: A systematic review and meta-analysis. AB - BACKGROUND: In the last 2 decades, several studies have examined the association between maternal thyroid hormone insufficiency during pregnancy and neurodevelopmental disorders in children and shown conflicting results. AIM: This systematic review aimed to assess the evidence for an association between maternal thyroid hormone insufficiency during pregnancy and neurodevelopmental disorders in children. We also sought to assess whether levothyroxine treatment for maternal thyroid hormone insufficiency improves child neurodevelopment outcomes. METHODS: We performed systematic literature searches in MEDLINE, EMBASE, PSYCinfo, CINAHL, AMED, BNI, Cochrane, Scopus, Web of Science, GreyLit, Grey Source and Open Grey (latest search: March 2017). We also conducted targeted web searching and performed forwards and backwards citation chasing. Meta analyses of eligible studies were carried out using the random-effects model. RESULTS: We identified 39 eligible articles (37 observational studies and 2 randomized controlled trials [RCT]). Meta-analysis showed that maternal subclinical hypothyroidism and hypothyroxinaemia are associated with indicators of intellectual disability in offspring (odds ratio [OR] 2.14, 95% confidence interval [CI] 1.20 to 3.83, P = .01, and OR 1.63, 95% CI 1.03 to 2.56, P = .04, respectively). Maternal subclinical hypothyroidism and hypothyroxinaemia were not associated with attention deficit hyperactivity disorder, and their effect on the risk of autism in offspring was unclear. Meta-analysis of RCTs showed no evidence that levothyroxine treatment for maternal hypothyroxinaemia or subclinical hypothyroidism reduces the incidence of low intelligence quotient in offspring. LIMITATIONS: Although studies were generally of good quality, there was evidence of heterogeneity between the included observational studies (I2 72%-79%). CONCLUSION: Maternal hypothyroxinaemia and subclinical hypothyroidism may be associated with intellectual disability in offspring. Currently, there is no evidence that levothyroxine treatment, when initiated 8- to 20-week gestation (mostly between 12 and 17 weeks), for mild maternal thyroid hormone insufficiency during pregnancy reduces intellectual disability in offspring. PMID- 29325224 TI - Hereditary kidney cancer syndromes: Genetic disorders driven by alterations in metabolism and epigenome regulation. AB - Although hereditary kidney cancer syndrome accounts for approximately five percent of all kidney cancers, the mechanistic insight into tumor development in these rare conditions has provided the foundation for the development of molecular targeting agents currently used for sporadic kidney cancer. In the late 1980s, the comprehensive study for hereditary kidney cancer syndrome was launched in the National Cancer Institute, USA and the first kidney cancer-associated gene, VHL, was identified through kindred analysis of von Hippel-Lindau (VHL) syndrome in 1993. Subsequent molecular studies on VHL function have elucidated that the VHL protein is a component of E3 ubiquitin ligase complex for hypoxia inducible factor (HIF), which provided the basis for the development of tyrosine kinase inhibitors targeting the HIF-VEGF/PDGF pathway. Recent whole-exome sequencing analysis of sporadic kidney cancer exhibited the recurrent mutations in chromatin remodeling genes and the later study has revealed that several chromatin remodeling genes are altered in kidney cancer kindred at the germline level. To date, more than 10 hereditary kidney cancer syndromes together with each responsible gene have been characterized and most of the causative genes for these genetic disorders are associated with either metabolism or epigenome regulation. In this review article, we describe the molecular mechanisms of how an alteration of each kidney cancer-associated gene leads to renal tumorigenesis as well as denote therapeutic targets elicited by studies on hereditary kidney cancer. PMID- 29325225 TI - Influence of CYP2D6, CYP3A4, CYP3A5 and ABCB1 Polymorphisms on Pharmacokinetics and Safety of Aripiprazole in Healthy Volunteers. AB - The aim of this study was to investigate the effect of polymorphisms in cytochrome P450 (CYP) 2D6, CYP3A4 and CYP3A5 enzymes and in P-glycoprotein (P-gp) on the pharmacokinetics and safety of aripiprazole and, its active metabolite, dehydro-aripiprazole, in 148 healthy volunteers from six bioequivalence trials receiving a single oral dose of aripiprazole. The plasma concentrations of both analytes were measured by LC-MS/MS. CYP2D6 (*3,*4,*5,*6,*7,*9 and copy number variations), CYP3A4 (*20 and *22), CYP3A5*3 and C3435T, C1236T and G2677T/A in ABCB1 gene were determined. As the number of active CYP2D6 alleles decreased, AUC0-t , Cmax and t1/2 of aripiprazole were higher and clearance of aripiprazole, AUC0-t of dehydro-aripiprazole and ratio dehydro-aripiprazole/aripiprazole were lower. AUC0-t of aripiprazole of poor metabolizer (PM) subjects was increased by 50% compared to extensive metabolizers (EM), and AUC0-t of dehydro-aripiprazole was decreased by 33%. ABCB1 1236TT subjects had a lower clearance of aripiprazole (p = 0.023) and AUC0-t (p = 0.039) and Cmax of dehydro-aripiprazole (p = 0.036) compared to C/C. CYP3A5*3/*3 subjects had a 10% lower ratio dehydro aripiprazole/aripiprazole than *1/*3 (p = 0.019). Adverse drug reactions (ADRs) had a directly proportional relationship with AUC0-t of aripiprazole (p = 0.001), especially nausea/vomiting, which were more common in women (p = 0.005). Women and CYP3A5*1/*1 subjects showed more often dizziness (p = 0.034; p = 0.009). Pharmacokinetics of aripiprazole is affected by CYP2D6 phenotype but also by sex and C1236T (ABCB1 gene), while dehydro-aripiprazole pharmacokinetics is affected by CYP2D6 and C1236T. The ratio dehydro-aripiprazole/aripiprazole was influenced by CYP2D6 phenotype and CYP3A5*3. Concentrations of aripiprazole, sex, CYP3A5*3 and CYP2D6 were involved in the development of ADRs. PMID- 29325226 TI - Citrullinated histone H3, a biomarker of neutrophil extracellular trap formation, predicts the risk of venous thromboembolism in cancer patients. AB - : Essentials Neutrophil extracellular traps (NETs) might play a role in cancer related coagulopathy. We determined NET biomarkers and followed cancer patients for venous thromboembolism (VTE). We found a constant association with VTE for citrullinated histone H3. Biomarkers of NET formation could reflect a novel pathomechanism of cancer-related VTE. SUMMARY: Background Neutrophil extracellular traps (NETs) are decondensed chromatin fibers that might play a role in the prothrombotic state of cancer patients. Objectives To investigate whether the levels of citrullinated histone H3 (H3Cit), a biomarker for NET formation, cell-free DNA (cfDNA) and nucleosomes predict venous thromboembolism (VTE) in cancer patients. Patients/Methods Nine-hundred and forty-six patients with newly diagnosed cancer or progression after remission were enrolled in this prospective observational cohort study. H3Cit, cfDNA and nucleosome levels were determined at study inclusion, and patients were followed for 2 years. VTE occurred in 89 patients; the cumulative 3-month, 6-month, 12-month and 24-month incidence rates of VTE were 3.7%, 6.0%, 8.1%, and 10.0%, respectively. Results Patients with elevated H3Cit levels (> 75th percentile of its distribution, n = 236) experienced a higher cumulative incidence of VTE (2-year risk of 14.5%) than patients with levels below this cut-off (2-year risk of 8.5%, n = 710). In a competing-risk regression analysis, a 100 ng mL-1 increase in H3Cit level was associated with a 13% relative increase in VTE risk (subdistribution hazard ratio [SHR] 1.13, 95% confidence interval [CI] 1.04-1.22). This association remained after adjustment for high VTE risk and very high VTE risk tumor sites, D-dimer level, and soluble P-selectin level (SHR 1.13, 95% CI 1.04-1.22). The association of elevated nucleosome and cfDNA levels with VTE risk was time-dependent, with associations with a higher risk of VTE only during the first 3-6 months. Conclusion These data suggest that biomarkers of NET formation are associated with the occurrence of VTE in cancer patients, indicating a role of NETs in the pathogenesis of cancer-associated thrombosis. PMID- 29325227 TI - Soluble ST2 in end-stage heart failure, before and after support with a left ventricular assist device. AB - BACKGROUND: The interleukin-33 (IL-33)/suppressor of tumorigenicity 2 (ST2) pathway is suggested to play an important role in fibrosis, remodelling and the progression of heart failure (HF). Increased soluble (sST2) levels are associated with adverse outcome in the average HF population. Less is known about sST2 levels in end-stage HF. Therefore, we studied sST2 levels in end-stage HF and the effect of unloading by left ventricular assist device (LVAD) support on sST2 levels. METHOD AND RESULTS: Serial plasma measurements of sST2 were performed pre implantation and 1, 3 and 6 months after (LVAD) implantation in 38 patients. sST2 levels were elevated in end-stage HF just prior to LVAD implantation (74.2 ng/mL [IQR 54.7-116.9]; normal <35 ng/mL) and decreased substantially during LVAD support, to 29.5 ng/mL [IQR 24.7-46.6](P < .001). Patients with INTERMACS profile I had significantly higher sST2 levels compared to patients in profile II and profile III. A moderate correlation was found between sST2 and C-reactive protein (r = .580, P < .010). CONCLUSION: Levels of sST2 are elevated in end-stage HF patients with variability that suggests multiple inputs to a pro-inflammatory and pro-fibrotic pathway. Cardiogenic shock and increased C-reactive protein levels are associated with higher sST2 levels. LVAD support results in a significant drop in sST2 levels with normalization within 3 months postimplantation. This suggests that LVAD support leads to lessening of fibrosis and inflammation, which might eventually be used to target medical policy: explantation of the LVAD versus permanent use or cardiac transplantation. PMID- 29325229 TI - Dual Drug Targeting of Mutant Bcr-Abl Induces Inactive Conformation: New Strategy for the Treatment of Chronic Myeloid Leukemia and Overcoming Monotherapy Resistance. AB - Bcr-Abl is an oncogenic fusion protein which expression enhances tumorigenesis, and has been highly associated with chronic myeloid leukemia (CML). Acquired drug resistance in mutant Bcr-Abl has enhanced pathogenesis with the use of single therapy agents such as nilotinib. Moreover, allosteric targeting has been identified to consequentially inhibit Bcr-Abl activity, which led to the recent development of ABL-001 (asciminib) that selectively binds the myristoyl pocket. Experimental studies have revealed that the combination of nilotinib and ABL-001 induced a 'bent' conformation in the C-terminal helix of Bcr-Abl; a benchmark of inhibition, thereby exhibiting a greater potency in the treatment of CML, surmounting the setbacks of drug resistance, disease regression and relapse. Therefore, we report the first account of the dynamics and conformational analysis of oncogenic T334I Bcr-Abl by dual targeting. Our findings revealed that unlike in the Bcr-Abl-Nilotinib complex, dual targeting by both inhibitors induced the bent conformation in the C-terminal helix that varied with time. This was coupled with significant alteration in Bcr-Abl stability, flexibility, and compactness and an overall structural re-orientation inwards towards the hydrophobic core, which reduced the solvent-exposed residues indicative of protein folding. This study will facilitate allosteric targeting and the design of more potent allosteric inhibitors for resistive target proteins in cancer. PMID- 29325228 TI - Effects of trastuzumab and afatinib on kinase activity in gastric cancer cell lines. AB - The molecular mechanism of action of the HER2-targeted antibody trastuzumab is only partially understood, and the direct effects of trastuzumab on the gastric cancer signaling network are unknown. In this study, we compared the molecular effect of trastuzumab and the HER kinase inhibitor afatinib on the receptor tyrosine kinase (RTK) network and the downstream-acting intracellular kinases in gastric cancer cell lines. The molecular effects of trastuzumab and afatinib on the phosphorylation of 49 RTKs and 43 intracellular kinase phosphorylation sites were investigated in three gastric cancer cell lines (NCI-N87, MKN1, and MKN7) using proteome profiling. To evaluate these effects, data were analyzed using mixed models and clustering. Moreover, proliferation assays were performed. Our comprehensive quantitative analysis of kinase activity in gastric cancer cell lines indicates that trastuzumab and afatinib selectively influenced the HER family RTKs. The effects of trastuzumab differed between cell lines, depending on the presence of activated HER2. The effects of trastuzumab monotherapy were not transduced to the intracellular kinase network. Afatinib alone or in combination with trastuzumab influenced HER kinases in all cell lines; that is, the effects of monotherapy and combination therapy were transduced to the intracellular kinase network. These results were confirmed by proliferation analysis. Additionally, the MET-amplified cell line Hs746T was identified as afatinib nonresponder. The dependence of the effect of trastuzumab on the presence of activated HER2 might explain the clinical nonresponse of some patients who are routinely tested for HER2 expression and gene amplification in the clinic but not for HER2 activation. The consistent effects of afatinib on HER RTKs and downstream kinase activation suggest that afatinib might be an effective candidate in the future treatment of patients with gastric cancer irrespective of the presence of activated HER2. However, MET amplification should be taken into account as potential resistance factor. PMID- 29325231 TI - Accuracy of FDG PET-CT response assessment following radiotherapy alone for head and neck squamous cell carcinoma: Retrospective analysis of 45 patients. PMID- 29325230 TI - Protocadherin-8 promotes invasion and metastasis via laminin subunit gamma2 in gastric cancer. AB - Growing evidence suggests that protocadherins (PCDH) play crucial roles in pathogenesis and progression of cancers, including gastric cancer (GC). Protocadherin-8 (PCDH8) was previously reported to be involved in metastasis of GC, but functional studies yielded inconsistent results and the molecular mechanism remained unknown. The present study aimed to explore the clinical relevance, function and molecular mechanism of PCDH8 in GC. Data from the GEPIA and Kaplan-Meier plotter databases showed that high expression of PCDH8 was significantly correlated with poorer prognosis in GC. Ectopic expression of PCDH8 in GC cells promoted invasion and migration in vitro and metastasis in vivo, and knockdown of PCDH8 inhibited invasion and migration in vitro. RNA sequencing followed by gene set enrichment analysis found a remarkable enrichment in the extracellular matrix receptor interaction pathway, with the expression of laminin subunit gamma2 (LAMC2) being significantly increased in the PCDH8-overexpressing group. High expression of LAMC2 was significantly correlated to poor prognosis in GC in GEPIA database. Upregulation of LAMC2 following PCDH8 overexpression was further confirmed by immunohistochemistry in liver metastatic lesions of nude mice. To our knowledge, this is the first report of the metastasis-enhancing property and molecular mechanism through upregulation of LAMC2 of PCDH8 in cancer. High expression of PCDH8 could be used as a biomarker for poor prognosis in clinical practice. PMID- 29325232 TI - Expression of CD163 in hereditary gingival fibromatosis: A possible association with TGF-beta1. AB - BACKGROUND: Although several studies have discussed some of the molecular and cellular changes associated with hereditary gingival fibromatosis (HGF), its pathogenesis is still largely unclear. This study was directed to detect and outline the degree of relationship between the immunophenotyped macrophages (M2) expressing CD163 and TGF-beta1 in patients with gingival overgrowth due to HGF. METHODS: Biopsies from 20 patients suffering from HGF and 20 normal control subjects were harvested, histologically and immunohistochemically stained then, analyzed and statistically compared and correlated for CD163 immunoexpression and TGF-beta1. RESULTS: All HGF specimens expressed TGF-beta1 by most of the connective tissue fibroblasts, with statistically high significant mean of area % (2.61 +/- 0.41) compared to normal controls (0.11 +/- 0.06; P = .001). All control specimens revealed negligible CD163 immunostaining of the few inflammatory cells found with a mean area of % (0.69 +/- 0.12), while the specimens of HGF cases showed statistically significant higher CD163 expression (3.39 +/- 0.75) at (P = .007). A statistically significant higher mean % of M2 cells expressing CD163 in relation to the total number of the inflammatory cells was revealed in HGF (34.46 +/- 2.04) compared to the control group (16.36 +/- 2.39; P-value <= .05). Moderate correlation between CD163 and TGF-beta1 was detected in HGF (r = .451; P-value < .05). CONCLUSIONS: CD163 and TGF-beta1 were clearly expressed in HGF cases compared to healthy control patients, with significant correlation. In HGF, the increase in CD 163-positive cells was specific and not dependent on the chronic gingival inflammation. PMID- 29325233 TI - Catatonia: An Approach to Diagnosis and Treatment. PMID- 29325234 TI - Prospective Associations Between Infant Sleep at 12 Months and Autism Spectrum Disorder Screening Scores at 24 Months in a Community-Based Birth Cohort. AB - BACKGROUND: Sleep problems have been associated with autism spectrum disorder (ASD) symptoms and diagnosis. However, past research has studied the simultaneous association of sleep problems with precursor ASD symptoms. Using data from a birth cohort, we estimate prospective associations between infant sleep characteristics at 12 months and later ASD screening scores at 24 months. METHODS: We obtained data from children (N = 1,096) and their mothers as participants in the Conditions Affecting Neurocognitive Development and Learning in Early Childhood longitudinal birth cohort study. Mothers were enrolled between 2006 and 2011, when they were 16-26 weeks pregnant. Using linear regression, we examined the influence of infant sleep characteristics (nighttime and daytime sleep, night wakings, and sleep onset latency) at 12 months on ASD screening scores at 24 months while controlling for other psychosocial characteristics. RESULTS: The number of night wakings was the only sleep characteristic at 12 months to be significantly associated with the development of early ASD symptoms at 24 months (B = 0.097, P = .021; 95% CI, 0.014 to 0.180). However, other competing risks, especially child socioemotional competence at 12 months (B = 0.573, P < .001; 95% CI, 0.361 to 0.785), showed stronger relative contributions in predicting ASD risk. CONCLUSIONS: Infants with more sleep problems by 12 months, especially those waking more often during the night, showed an increased number of early ASD symptoms a year later. This study suggests that infant sleep characteristics could constitute one clinical sign of ASD risk, together with key psychosocial characteristics. PMID- 29325235 TI - Taking on the Role of Editor in Chief. PMID- 29325236 TI - Treatment With a Ghrelin Agonist in Outpatient Women With Anorexia Nervosa: A Randomized Clinical Trial. AB - OBJECTIVE: To assess the effects of relamorelin-an agonist of the appetite stimulating hormone ghrelin, which has effects on gastric emptying-on (1) weight gain and (2) gastric emptying in women with anorexia nervosa. METHODS: In a randomized, double-blind, placebo-controlled design, the effects of the ghrelin agonist relamorelin were studied in 22 outpatient women with anorexia nervosa, diagnosed using DSM-5 criteria. The study was conducted at the Massachusetts General Hospital Clinical Research Center between March 11, 2013, and February 26, 2015. Ten participants were randomly assigned to relamorelin 100 MUg subcutaneously daily (mean +/- SEM age: 28.9 +/- 2.4 y), and 12 were randomly assigned to placebo (28.9 +/- 1.9 y). We measured changes in weight and gastric emptying time using a gastric emptying breath test (GEBT) for relamorelin versus placebo after 4 weeks of treatment. RESULTS: At baseline, subjects did not differ in weight, plasma ghrelin levels, or gastric emptying time. Three subjects randomized to relamorelin stopped use of the study medication due to reported feelings of increased hunger. After 4 weeks, there was a trend toward an increase in weight in participants randomized to relamorelin (mean +/- SEM change: 0.86 +/ 0.40 kg) compared to placebo (0.04 +/- 0.28 kg; P = .07), and gastric emptying time was significantly shorter in patients taking relamorelin (median [interquartile range]: 58.0 [51.0, 78.0] minutes) compared to placebo (85.0 [75.8,100.5] minutes; P = .03). CONCLUSIONS: Treatment with a ghrelin agonist in women with anorexia nervosa significantly decreases gastric emptying time, leads to a trend in weight gain after only 4 weeks, and is well-tolerated. Further study is necessary to determine the long-term safety and efficacy of a ghrelin agonist in the treatment of anorexia nervosa. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01642550. PMID- 29325237 TI - Neuroleptic Malignant Syndrome: Diagnosis and Management. AB - Objective: To provide an overview of neuroleptic malignant syndrome (NMS) for the general practitioner with the most up-to-date information on etiology, workup, and management. Data Sources: The search using PubMed included articles with the key words neuroleptic malignant syndrome, antipsychotics, neuroleptics, diagnosis, and treatment of neuroleptic malignant syndrome published in English from January 2000 to 2017. Single-case reports and articles dealing with the pediatric patient population were excluded. Study Selection: Over 4,000 articles met the search criteria. After eliminating single-case reports, pediatric cases, reports in pregnant patients, and duplicates, 87 articles underwent screening. Forty-two articles were included in this review. Results: The literature is rich with cases of NMS associated with the use of neuroleptics and various medications with neuroleptic-like effects. Questions remain with regard to pathophysiology and optimal treatment. NMS is a rare but potentially lethal consequence of the use of antipsychotic medications that requires familiarity with the condition in order to rapidly recognize its onset and appropriately intervene. Conclusions: NMS mortality rates have declined over the past 30 years, most likely due to early recognition of the syndrome and appropriate intervention. Nonetheless, clinicians, especially primary care clinicians who are using this class of drugs more often for adjunctive treatments, must be cognizant of this syndrome and the implications of their use.. PMID- 29325239 TI - Insomnia and Psychopathological Features Associated With Restless Legs Syndrome in Chinese Adolescents. AB - OBJECTIVE: Little is known about psychopathological features associated with restless legs syndrome (RLS) in pediatric populations. This study examined sleep duration, insomnia, and psychopathological profile associated with RLS in a large community sample of adolescents. Methods: Participants included 11,831 adolescents from 3 counties of Shandong, China. Mean age of the participants was 15.0 (SD = 1.5) years, and 51% were boys. In November and December 2015, participants completed a structured questionnaire to assess sleep duration, sleep problems, behavioral/emotional problems, and hopelessness. RLS was assessed by the 2003 National Institutes of Health (NIH) Restless Legs Syndrome Diagnosis and Epidemiology Workshop criteria. RESULTS: Of the sample, 9.5% met the 2003 NIH workshop criteria for RLS, and 2.2% had RLS at least 3 times per week. Compared with adolescents without RLS, adolescents with RLS < 3 times per week and those with RLS >= 3 times per week demonstrated significantly higher rates of insomnia symptoms (13.8%, 20.0%, and 36.4%, respectively; chi2 = 117.84, P < .0001), internalizing (9.1%, 18.5%, and 34.1%; chi2 = 238.84, P < .001) and externalizing (9.8%, 17.4%, and 34.1%; chi2 = 193.87, P < .001) problems, and hopelessness (13.0%, 16.9%, and 27.8%; chi2 = 54.10, P < .001). After adjusting for demographics and internalizing and externalizing problems, RLS >= 3 times per week was associated with a doubled risk of insomnia (OR = 2.05; 95% CI, 1.53 2.75). After adjusting for demographics, sleep duration, and insomnia, RLS >= 3 times per week was associated with a more than doubled risk of internalizing (OR = 2.65; 95% CI, 1.94-3.62) and externalizing problems (OR = 2.75; 95% CI, 2.02 3.74). CONCLUSIONS: RLS is associated with increased risk of insomnia, hopelessness, and both internalizing and externalizing problems. Our findings suggest that clinicians need to assess RLS in adolescents with sleep and mental health problems. PMID- 29325240 TI - Advanced Topics in Major Depressive Disorder: Practical Strategies to Improve Remission. AB - Most patients with major depressive disorder will not achieve remission with initial treatment. Strategies to increase the likelihood of achieving remission include regularly measuring response, assessing adverse effects and adherence, addressing non-mood symptoms, and knowing when to switch or augment antidepressants. In this CME Health Spectrum activity, follow 2 patient cases that illustrate these topics. PMID- 29325238 TI - Psychometrics of the Self-Report Concise Associated Symptoms Tracking Scale (CAST SR): Results From the STRIDE (CTN-0037) Study. AB - OBJECTIVE: The self-report Concise Associated Symptoms Tracking Scale (CAST-SR) was developed to track mania, irritability, anxiety, panic, and insomnia symptoms among depressed outpatients receiving antidepressant medication. Given the overlap between these domains, depression, and stimulant use disorders, we reexamined CAST-SR psychometrics in a novel sample: individuals with stimulant use disorder receiving aerobic exercise or health education interventions. METHODS: Using the subsample of stimulant-dependent (following DSM-IV criteria) individuals prescribed antidepressants (N = 124) from the multisite Stimulant Reduction Intervention Using Dosed Exercise (CTN-0037) trial (total sample N = 302), conducted July 2010 to February 2013, we analyzed CAST-SR data collected at the first assessment after participant's discharge from residential treatment. We also evaluated the convergent/discriminant validity of the CAST-SR with several self-report questionnaires. RESULTS: Confirmatory factor analysis revealed a 12 item measure composed of 4 factors: irritability, anxiety, panic, and insomnia. This factor structure loaded only in participants prescribed antidepressant medication, not in those who were not prescribed antidepressants. These results replicate the original CAST-SR factor structure, except for the mania factor, which failed to load. Internal consistency was high (alpha = 0.92 for total scale and alpha = 0.78-0.89 for the 4 factors), and convergent validity was established, especially for the insomnia and irritability factors, alongside the total score with depressive symptoms, insomnia, quality of life, suicide risk, and physical health measures. CONCLUSIONS: These results demonstrate the factor structure, reliability, and validity of the CAST-SR in a novel population of only individuals with stimulant use disorders receiving both exercise/health education interventions and antidepressant medication. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01141608. PMID- 29325242 TI - [Keep pace with the time, do our best in pathology]. PMID- 29325243 TI - [Comments on the 2017 update version of the consensus on pathologic diagnosis of gastrointestinal stromal tumor]. PMID- 29325241 TI - Typical lesions in the fetal nervous system: correlations between fetal magnetic resonance imaging and obstetric ultrasonography findings. AB - Central nervous system (CNS) malformations play a role in all fetal malformations. Ultrasonography (US) is the best screening method for identifying fetal CNS malformations. A good echographic study depends on several factors, such as positioning, fetal mobility and growth, the volume of amniotic fluid, the position of the placenta, the maternal wall, the quality of the apparatus, and the sonographer's experience. Although US is the modality of choice for routine prenatal follow-up because of its low cost, wide availability, safety, good sensitivity, and real-time capability, magnetic resonance imaging (MRI) is promising for the morphological evaluation of fetuses that otherwise would not be appropriately evaluated using US. The aim of this article is to present correlations of fetal MRI findings with US findings for the major CNS malformations. PMID- 29325244 TI - [Expert consensus on pathologic diagnosis of melanoma in China]. PMID- 29325245 TI - [Clinical characteristics of high-grade B-cell lymphomas with rearrangement of MYC, bcl-6 and bcl-2]. AB - Objective: To investigate the clinicopathologic features of patients with high grade B-cell lymphomas (HGBL) that have rearrangements of MYC, bcl-6 and bcl-2. Methods: One hundred and fifty-eight B-cell lymphomas patients from Institute of Hematology and Blood Diseases Hospital from January 2016 to April 2017 were detected by fluorescence in situ hybridization (FISH) with double color split apart probes. Results: Among 158 B-cell lymphomas, 3 cases with MYC, bcl-2 and bcl-6 rearrangements were identified, 1 of which also had CCND1/IgH translocation. All three patients were of older age, with poor prognostic parameters, multiple organs involvements, elevated LDH and advanced-tumor stage. Two of the three patients were treated with high-intensity chemotherapy and had no remission with an overall survival of 9 months and 11 months respectively. One patient had follow-up with no treatment. Histologically, all three cases showed a spectrum of morphologic features. Although initially categorized as lymphoblastic lymphoma, diffuse large lymphoma and mantle cell lymphoma respectively, two cases were associated with germinal center B-cell (GCB) immunophenotype and 1 case with non-GCB immunophenotype. They had a high proliferation index as assessed by immunostaining for Ki-67 (60%-90%). Conclusions: MYC(+) bcl-2(+) bcl-6(+) HGBL is an aggressive disease with multiple organ involvement, high serum LDH levels, advanced stage disease, poor prognosis and shorter patient survival. The diagnosis should be made by histopathology combined with FISH analysis. Its separation from other types of B cell large cell lymphoma is of clinical importance. PMID- 29325246 TI - [Diagnostic significance of lymph node core needle biopsy for lymphoproliferative disease: a clinicopathologic study of 1 013 cases]. AB - Objective: To study the clinicopathologic features of lymphoproliferative disease by lymph node core needle biopsy(CNB)and to evaluate the diagnostic significance of CNB for lymphoproliferative disease. Methods: The annual distribution, entity constitute, clinical finding, gross feature, morphologic change, affiliate study and repeat biopsy diagnosis of 1 013 cases of lymph node CNB diagnosed at West China Hospital of Sichuan University from January 2009 to December 2015 were investigated. Results: (1) Proportion of lymph node CNB in total amount of biopsy specimens increased from 0.2% in 2009 to 0.8% in 2015.(2) The study cohort included 471 lymphomas, 12 atypical lymphoid hyperplasia (ALH), 136 suspected lymphomas, 372 benign lesions, and 22 cases of descriptive diagnoses. The most common types were diffuse large B cell lymphoma and T-lymphoblastic lymphoma. (3) Majority of patients were adolescents and children younger than 20 years or the elderly older than 60 years. 53.1% CNB tumor specimen consisted of >=4 tissue cores and 40.5% were >2 cm in length. (4) 104 CNB cases with previous history of excision biopsy was included 45 carcinomas(no metastatic carcinoma was found), 32 lymphomas for treatment observation.1/14 suspicious lymphomas, 1/1 ALH and 3/22 cases benign lesions were diagnosed as lymphoma by repeat biopsy respectively. (5) 217 CNB cases were diagnosed as lymphoma by subsequent CNB (70), or subsequent excision biopsy (147) including 78.5%(73/93) suspected lymphomas, 5/7 ALH and 32.3%(20/62)benign lesions. Conclusions: Lymph node CNB has certain clinical indications, although limited for the diagnosis of lymphoproliferative disorders. Suspected lymphomas and ALH diagnosed by CNB should be followed by repeat tissue biopsy. For the benign lesions by CNB it does not rule out additional biopsy to further investigate the lesion. PMID- 29325247 TI - [Impact of PRDM1 gene inactivation on C-MYC regulation in diffuse large B-cell lymphoma]. AB - Objective: To investigate the role of PRDM1 gene inactivaion in the regulation of C-MYC in diffuse large B-cell lymphoma (DLBCL), and to explore the correlation of its immunophenotype and prognosis. Methods: 100 cases paraffin-embedded DLBCL tissues were collected from January 2009 to December 2015 at the First Affiliated Hospital of Xinjiang Medical University along with 20 cases of reactive proliferative lymph nodes as control. Immunohistochemical methods were used to detect the expression of CD20, CD10, MUM1, Ki-67, bcl-6, PRDM1/Blimp1, C-MYC and PAX5 protein. The tumors were classified into two subtypes according to Hans classification.The expression of PRDM1 and C-MYC gene in tumor group and control group was detected by reverse transcription PCR (RT-PCR) and the relationship between PRDM1 and C-MYC gene was analyzed.OCI-LY1 (GCB subtype) and OCI-LY3 (non GCB subtype) cell lines were transfected with small interfering RNA by cationic liposome reagent transfection, and the expression of C-MYC in the transfected cell lines was detected by RT-PCR and Western blot. The Kaplan-Meier method was used to analyze the prognostic significance of PRDM1/Blimp1 and C-MYC at protein and mRNA levels. Results: There were 27 cases of GCB subtype and 73 cases of non GCB subtype according to Hans classification. The positive expression of Blimp1 in DLBCL group and proliferative lymph nodes in control group was seen in 26(26.0%) and 20 cases(100%), respectively. There were 58 cases with high expression of PRDM1 at mRNA level, including 22 cases of GCB subtype and 36 cases non-GCB subtype, and the difference was statistically significant (P=0.004). There were differences in PRDM1 gene expression between the two immunological subtypes, serum lactate dehydrogenase (serum LDH) level, presence of B symptoms, tumor primary sites and other clinical pathological parameters, while C-MYC expression was different in gender, IPI score, and serum LDH levels. Upon PRDM1/Blimp1 gene silencing in the two cell lines, C-MYC protein and gene expression were up-regulated in the transfection group, compared with the blank control group and negative control group by reverse transcription PCR and Western blot analyses. Moreover, PRDM1 expression was significantly associated with C MYC(chi(2)=7.648, P=0.006) at mRNA level. Conclusion: The up-regulation of C-MYC gene expression induced by PRDM1 inactivation in DLBCL may play an important role for the development of DLBCL.PRDM1 protein and mRNA are associated with immunophenotyping and PRDM1 mRNA is a marker of poor prognosis. PMID- 29325248 TI - [Survival of patients with primary central nervous system diffuse large B-cell lymphoma: impact of gene aberrations and protein overexpression of bcl-2 and C MYC, and selection of chemotherapy regimens]. AB - Objective: To investigate the impact of clinicopathological features, gene rearrangements and protein expression of bcl-6, bcl-2, C-MYC and chemotherapy regime on the prognosis of patients with primary central nervous system diffuse large B-cell lymphoma (PCNS-DLBCL). Methods: Thirty-three cases of PCNS-DLBCL diagnosed from January 2006 to December 2016 at Zhejiang Cancer Hospital were collected. The expression of CD10, bcl-6, bcl-2, MUM1 and MYC were detected by immunohistochemical staining (IHC). The presence of EB virus was detected by in situ hybridization(EBER). Copy number variation (ICN) and translocation status of bcl-6, bcl-2 and C-MYC genes were detected by fluorescence in situ hybridization (FISH). The relationship between the above indexes and the prognosis was analyzed by univariate, bivariate survival analysis and multiple Cox hazard regression analysis. Results: The study included 33 patients of PCNS-DLBCL, without evidence of primary or secondary immunodeficient disease. Male to female ratio was 1.36?1.00, and the average age was 56 years. Twenty cases had single lesion while 13 had multiple lesions. Deep brain involvement was seen in 12 cases. All patients underwent partial or total tumor resection. Five patients received whole brain post-surgery radiotherapy, nine patients received high-dose methotrexate (HD-MTX) based chemotherapy, and 12 patients received whole-brain radiotherapy combined with HD-MTX based chemotherapy. Severn patients received no further treatment and rituximab was used in 8 patients. According to the Hans model, 27 cases were classified as non-GCB subtypes (81.8%). Bcl-2 was positive in 25 cases (75.8%, 25/33) and highly expressed in 8 (24.2%). MYC was positive in 12 cases (36.4%) and double expression of bcl-2 and MYC was seen in 6 cases. EBER positive rate was 10.0%(3/30), all of which had multiple lesions. Two bcl-6 gene translocations and 3 amplifications were found in 28 patients. Two translocations, 3 ICN or with both bcl-2 gene translocation and ICN were found in 30 patients. Four ICNs of C-MYC gene were found in 28 patients. Elevated protein in cerebrospinal fluid (CSF) was found in 13 patients. LDH increased in 10 cases. Follow-up period was 2-90 months with the average survival time of (23.0+/-3.7) months and two-year survival rate of 39.0%. Univariate survival analysis showed that overexpression of bcl-2 protein (>=70%) and MYC protein (>=40%), bcl-2 gene abnormality (including copy number increase and translocation), C-MYC gene copy number increased were adverse factors for survival. C-MYC/ bcl-2 gene double hit was seen in 2 cases. Bivariate survival analysis found that of bcl-2/MYC protein double expression and bcl-2 and C-MYC genes double aberration were significantly associated with adverse outcomes. Cox multivariate risk regression analysis found that gender, cerebrospinal fluid protein increasing, and ICN of C-MYC gene were independent poor prognostic factors. DH-MTX based comprehensive chemotherapy was associated with better prognosis. Conclusions: Double hit at genomic level (copy number variations and gene rearrangements) and double protein expression of bcl-2 and C-MYC in PCNS-DLBCL are significantly associated with an adverse outcome. DH MTX based comprehensive treatment may prolong the patient survival. PMID- 29325249 TI - [Clinicopathologic features of primary hepatic marginal zone lymphoma of mucosa associated lymphoid tissue and hepatic pseudolymphoma]. AB - Objective: To study the clinicopathological features of primary hepatic extranodal marginal zone lymphoma of mucosa associated lymphoid tissue (MALT lymphoma) and hepatic pseudolymphoma, and to discuss their differential diagnosis, treatment and prognosis. Methods: Three primary hepatic MALT lymphomas and two hepatic pseudolymphomas collected from January 2012 to March 2017 in the First Affiliated Hospital of Nanjing Medical University were evaluated by HE and immunohistochemistry(IHC), in-situ hybridization and immunoglobulin (Ig) gene rearrangement detection, and the relevant literature reviewed. Results: In the three MALT lymphomas, tumor cells infiltrated the portal areas with nodular pattern, and invaded the surrounding normal liver with serpiginous configuration and formation of confluent sheets. A number of bile ducts were entrapped within the lesions, and showed lymphoepithelial lesion. Reactive lymphoid follicles were present and surrounded by tumor cells, consisting of predominantly centrocyte like cells and monocytoid B cells. There were clusters of epithelioid histiocytes in one case. The tumor cells were positive for CD20, PAX5 and negative for CD5, CD23, CD10, bcl-6, and cyclin D1. In the two hepatic pseudolymphomas, the lesions presented as solitary nodules well-demarcated from the surrounding liver tissue; one case was partially encapsulated with fibrous tissue. Entrapped bile ducts were only found at the edge of the lesions without lymphoepithelial lesion. The lesions comprised of massive lymphoid proliferation consisting predominantly of reactive lymphoid follicles, but not monocytoid B-cells or atypical cells. By IHC, a mixture of B- and T-cell population was identified. A monoclonal rearrangement of the Ig gene was detected in all three MALT lymphomas but not in two pseudolymphomas. Interphase fluorescence in situ hybridiazation test for MALT1 break-apart gene was positive in two cases of MALT lymphomas and EBER was negative in all studied cases. Conclusions: Primary heptic MALT lymphoma and pseudolymphoma are both rare lymphoid proliferative lesions of liver. These two lesions have overlapping histological and IHC features and are top differential diagnosis to each other. A combination analysis of morphology, immunophenotype and Ig gene rearrangement is helpful to distinguish between them. PMID- 29325250 TI - [Myofibroma/myofibromatosis: a clinicopathologic analysis of 9 cases]. AB - Objective: To investigate the clinical and histological features, diagnosis and differential diagnosis of myofibroma/myofibromatosis. Methods: The clinical data and pathology features of nine cases of myofibroma/myofibromatosis were collected from August 2011 to November 2016 in Affiliated Drum Tower Hospital, Nanjing University Medical School and Children's Hospital of Nanjing Medical University. Immunohistochemistry(IHC), PDGFRB molecular analysis and ETV6-NTRK3 gene fusion were performed and relevant literature reviewed. Results: There were 7 males and 2 females, with age ranging from 3 days to 18 years (mean 5 years). The tumors were located in head and neck (eight cases) and trunk (one case). Clinically, the tumors presented as freely movable nodules. Microscopically, they appeared biphasic with alternating light- and dark-staining areas. The light-staining area consisted mainly of plump myoid spindle cells with eosinophilic cytoplasm arranged in nodules, short fascicles, or whorls.The dark-staining area was composed of round or polygonal cells with slightly hyperchromatic nuclei or small spindle cells arranged around a distinct hemangiopericytoma-like vascular pattern. IHC showed the tumor cells in the light-staining area were strongly positive for vimentin and SMA, while cells in dark-staining area were strongly positive for vimentin, and weakly for SMA. Tumor cells were negative for desmin, S-100 protein, h-Caldesmon, CD34 and STAT6. Analysis of PDGFRB mutations was performed in seven cases. Two cases showed 12 exon point mutation c. 1681 c>T(p.R561C), one case showed 14 exon point mutation c. 1998C>G (p.N666K). ETV6 NTRK3 gene fusion was not detected by fluorescence in situ hybridization in four patients under three years old. All cases were followed for 6 to 68 months, with two recurrences. Conclusions: Myofibroma/myofibromatosis is an uncommon benign myofibroblastic tumor of infancy and childhood. The tumor can appear biphasic, and may show PDGFRB point mutation which is of potential diagnostic value. PMID- 29325252 TI - [Clinicopathologic analysis and classification of 2 093 cases of lymphomas: experiences in Heilongjiang Province of China]. PMID- 29325251 TI - [Extrapleural solitary fibrous tumor with uncommon histology: a clinicopathologic analysis of 7 cases]. AB - Objective: To investigate the clinicopathologic characteristics, immunophenotypes, and differential diagnostic features of extra-pleural solitary fibrous tumor (SFT) with uncommon histology. Methods: Seven cases of extra pleural SFT with uncommon histology were collected during January 2015 and December 2016 in Zhejiang Provincal People's Hospital; the clinical and radiologic features, histomorphology, immunophenotype and prognosis were analyzed. EnVision method was used for immunohistochemical staining of STAT6, CD34 and other differential diagnosis associated markers. Results: There were five male and two female patients, age from 23 to 54 years (mean=39 years). Three tumors were located in the soft tissue of head and neck, two in trunk subcutaneous soft tissue, one in sella region, and one in the kidney. Grossly the tumors ranged from 0.4 to 8.0 cm (mean=3.1 cm). Microscopically, all three head and neck cases resembled giant cell angiofibroma/giant cell subtype SFT, and one case showed sheet-like pattern of the multinucleated syncytial cells, creating a biphasic arrangement similar to myofibroma. Both truncal tumor resembled lipomatous type SFT, with one similar to dermatofibrosarcoma protuberans and the other to atypical spindle cell lipomatous tumor. The sella tumor showed morphology of a conventional SFT with high grade sarcomatous transformation. The renal tumor demonstrated a malignant SFT with entrapped benign renal tubules, mimicking a biphase synovial sarcoma or a malignant mixed epithelial and stromal tumor. By immunohistochemistry, all seven SFTs showed diffuse and strong nuclear reactivity to antibody against STAT6. Conclusions: Extra-pleural SFTs show a significant heterogeneity of morphology and biological behavior which could cause differential confusion.Careful attention to its characteristic histomorphology with the use of STAT6 immunohistochemistry can help distinguish this tumor from its many mimickers. PMID- 29325253 TI - [Expression of PD-L1 and clinicopathologic correlation in invasive ductal carcinoma of breast with nodal metastasis]. PMID- 29325254 TI - [Hemangioma arising in subependymal giant cell astrocytoma: report of a case]. PMID- 29325255 TI - [Mullerian-type clear cell adenocarcinoma in male: report of a case]. PMID- 29325256 TI - [Cervical spinal cord hemangioblastome: report of a case]. PMID- 29325257 TI - [Sinus hemangioma of mesosalpinx mimicking angiosacoma on frozen sections: report of a case]. PMID- 29325258 TI - [Ichthyosis uteri: report of a case]. PMID- 29325259 TI - [Research and application of multisite fluorescence in-situ hybridization in diagnosis of cutaneous melanoma]. PMID- 29325260 TI - [Research progress of NDRG1 in molecular mechanism of tumor invasion and metastasis]. PMID- 29325261 TI - [Consensus for diagnosis and treatment of uterine myoma]. PMID- 29325262 TI - [Strengthen the management of pregnancy, decrease the stillbirth incidence of China]. PMID- 29325263 TI - [Analysis of 2 204 stillbirths in 11 hospitals of Guangdong province]. AB - Objective: To analyze the incidence and causes of stillbirth in 11 hospitals of Guangdong province, and to explore the appropriate interventions. Methods: Clinical data of stillbirth in 11 hospitals of Guangdong province were collected from January 2014 to December 2016. The gestational weeks, causes, maternal conditions and other factors were analyzed. Results: (1) From 2014 to 2016, 103 472 newborns were delivered in the 11 hospitals, and the number of stillbirth was 2 204, with the incidence of 2.13%. Among them, 0.71%(738/103 472) was therapeutic induction, 1.42%(1 066/103 472) was natural stillbirth. At different gestational age (<28 weeks, 28-<37 weeks and >=37 weeks), the incidence of stillbirth was 55.63% (1 226/2 204), 28.45% (627/2 204) and 15.92% (351/2 204), respectively, with statistically significant difference (P<0.01). (2) For stillbirth<28 weeks, the first reason was therapeutic induction, accounting for 53.34% (654/1 226). For stillbirth during 28-37 weeks, pre-eclampsia was the major cause, accounting for 40.67% (255/627). And for full-term stillbirth, the causes were umbilical cord factors (19.37%, 68/351), abnormal labor (17.09%, 60/351). (3) In all the stillbirth cases, the incidence of fetal growth restriction (FGR) <28 weeks was significantly higher than that during 28-37 weeks [23.49% (288/1 226) vs 18.02% (113/627) , P<0.01]. (4) The stillbirth rate during labor was significantly higher in women >=35 years old than in younger women [63.88% (191/299) vs 36.12% (108/299) ; chi(2)=9.346, P=0.000]. For the causes of stillbirth during labor, the incidence of severe maternal obstetrical complications [61.11% (33/54) vs 38.89% (21/54) ; chi(2)=3.323, P=0.002], abnormal labor [65.82% (52/79) vs 34.18% (27/79) ; chi(2)=4.067, P=0.001] and abnormal fetal position [66.63% (26/39) vs 33.37% (13/39) ; chi(2)=3.002, P=0.013] were higher in women >=35 years old than in younger women. (5) Cesarean section during labor accounted for 33.77% (101/299) of stillbirth, including 76 cases of emergency cesarean section or converted to cesarean section during labor. Conclusions: (1) The incidence of stillbirth in the 11 hospitals is high, and the causes are different at different gestational ages, therefore, different interventions are needed to reduce the incidence in different gestational weeks. Supervision of therapeutic induction should be strengthened <28 gestational weeks; standard management of pregnancy might decrease the occurrence of natural death >=28 weeks. (2) Attention should be paid to fetal body weight during pregnancy, especially FGR. (3) The stillbirth rate is high in elderly pregnant women, so it is important to strengthen the management of the elderly pregnant women. PMID- 29325264 TI - [High risk factors analysis of stillbirth]. AB - Objective: To explore the high risk factors of stillbirth. Methods: 176 cases of stillbirth were collected in the Obstetrics and Gynecology Hospital of Fudan University from January 1(st), 2010 to December 31(st), 2016. All cases were analyzed retrospectively, including general profile, high risk factors of stillbirth in different years and pregnancy periods. Results: (1) The incidence of stillbirth was 0.178%(176/98 785). Stillbirth occured mostly at 28-28(+6) gestational weeks (10.8%,19/176), and the second peak was 29-29(+6) weeks(10.2%,18/176), while the third common period was 37-37(+6) weeks (9.1%,16/176). After 39 weeks, it maintained at a low level. (2) The top 5 high risk factors of stillbirth were infection (18.2%,32/176), unexplained (13.6%,24/176), hypertention disorders in pregnancy (13.1%, 23/176), umbilical cord torsion (12.5%, 22/176) and fetal malformations (10.2%, 18/176). (3) From 2010 to 2012, the top 3 high risk factors were unexplained, the umbilical cord torsion and infection, while hypertention in pregnancy, infection and fetal malformation became the top 3 high risk factors after 2013. (4) Early stillbirth (20-27(+6) weeks) accounted for 21.6%(38/176); and unexplained (47.4%, 18/38), fetal edema (13.2%, 5/38),infection (13.2%, 5/38), umbilical cord torsion (5.3%, 2/38) were the top 4 high risk factors. Late stillbirth (>=28 weeks) accounted for 78.4%(138/176), with infection (19.6%,27/138), hypertention in pregnancy (15.9%,22/138), umbilical cord torsion (14.5%,20/138) and fetal malformation(12.3%,17/138)being the top 4 high risk factors. Conclusions: More attention should be paid to maternal complications, especially infection and hypertension in pregnancy. Antenatal fetal monitoring, timely termination of pregnancy, standard management of stillbirth and looking for the causes may help reduce the incidence of stillbirth. PMID- 29325265 TI - [Clinical analysis of 105 intrauterine fetal deaths in 17 years]. AB - Objective: To study the cause of intrauterine fetal death (IUFD) in 17 years. Methods: From June 1(st), 2000 to May 31(st), 2017, 65 621 women delivered in Peking University First Hospital. Clinical data of 105 cases of IUFD (including 82 singleton pregnancies and 23 twin pregnancies) during the 17 years were analyzed retrospectively. Results: (1) In singleton pregnancies, the leading cause of IUFD was maternal complications, including severe pre-eclampsia (36/82, 43.9%) and diabetes mellitus (6/82, 7.3%). The second reason was umbilical cord factors (13/82, 15.9%), including over-screwed umbilical cord, cord entanglement, true knot of cord. 54 women of singleton pregnancy (65.9%, 54/82) felt abnormal fetal movements (decreased or disappeared). (2) In twin pregnancies, the leading cause was complications of monochorionic twins (12/23, 52.2%). Seven woman of twin pregnancy (65.9%, 54/82) felt abnormal fetal movements. Conclusions: To reduce the occurrence of IUFD, the pregnancy complications should be managed in time and properly. Monochorionic twins should be determined as early as possible. More attention should be paid toabnormal fetal movement and the application of ultrasound. PMID- 29325266 TI - [Analysis of 649 cases of stillbirth in third trimester]. AB - Objective: To analyze the risk factors of stillbirth in third trimester. Methods: Clinical data of 649 cases of stillbirth in third trimester were analyzed retrospectively in 22 hospitals of Haidian district from October 2011 to September 2016, including the incidence, the maternal profile, the perinatal care during pregnancy and the causes of stillbirth. Results: (1) The incidence of stillbirth in third trimester in Haidian district from October 2011 to September 2016 was 0.293%(649/221 845). While the incidence in floating pregnant women (0.349%, 342/97 939) was higher than that in the residence (0.248%, 307/123 906), with statistically significant difference (chi(2)=19.178, P<0.01). The incidence of stillbirth in multiple pregnancy(0.201%, 89/4 264) was higher than that in singleton pregnancy (0.257%, 560/217 581), with statistically significant difference(chi(2)=4.690, P<0.01). There was no statistically significant difference in the incidence of stillbirth between male (0.300%, 347/115 632) and female fetuses (0.284%, 302/106 205; chi(2)=0.467, P>0.05).(2)Among the 649 cases, the floating population accounted for the majority of those who never had prenatal visit (84.0%, 21/25), or less than 5 visits (80.7%, 125/155), or the first visit was beyond 13 gestational weeks(66.0%, 165/649). The causes of stillbirth in order were fetal factors (30.7%, 199/649), maternal factors(28.0%, 182/649), umbilical cord factors (20.0%, 130/649), unexplained factors (17.6%, 114/649) and placental factors (3.7%, 24/649). Birth defects, pregnancy hypertensive disorders, umbilical cord entanglement or torsion were the most important factors, accounting for 22.8%(148/649), 17.4%(113/649), 17.3%(112/649), respectively. Conclusions: The floating pregnant women are key population of stillbirth in third trimester. Maternal care and education should be strengthened in this population. The prevention of birth defect, better prenatal care in women with complications, and close monitor during labor are the key measures to reduce the incidence of stillbirth in third trimester. PMID- 29325267 TI - [Analysis of clinical outcomes of different embryo stage biopsy in array comparative genomic hybridization based preimplantation genetic diagnosis and screening]. AB - Objective: To evaluate the efficiency of the application of array comparative genomic hybridization (array-CGH) in preimplantation genetic diagnosis or screening (PGD/PGS), and compare the clinical outcomes of different stage embryo biopsy. Methods: The outcomes of 381 PGD/PGS cycles referred in the First Affiliated Hospital of Nanjing Medical University from July 2011 to August 2015 were retrospectively analyzed. There were 320 PGD cycles with 156 cleavage-stage biopsy cycles and 164 trophectoderm-biopsy cycles, 61 PGS cycles with 23 cleavage stage-biopsy cycles and 38 trophectoderm-biopsy cycles. Chromosomal analysis was performed by array-CGH technology combined with whole genome amplification. Single embryo transfer was performed in all transfer cycles. Live birth rate was calculated as the main clinical outcomes. Results: The embryo diagnosis rate of PGD/PGS by array-CGH were 96.9%-99.1%. In PGD biopsy cycles, the live birth rate per embryo transfer cycle and live birth rate per embryo biopsy cycle were 50.0%(58/116) and 37.2%(58/156) in cleavage-stage-biopsy group, 67.5%(85/126) and 51.8%(85/164) in trophectoderm-biopsy group (both P<0.01). In PGS biopsy cycles, the live birth rate per embryo transfer cycle and live birth rate per embryo biopsy cycle were the same as 34.8%(8/23) in cleavage-stage-biopsy group, the same as 42.1%(16/38) in trophectoderm-biopsy group (both P>0.05). Conclusions: High diagnosis rate and idea live birth rate are achieved in PGD/PGS cycles based on array-CGH technology. The live birth rate of trophectoderm-biopsy group is significantly higher than that of cleavage-stage-biopsy group in PGD cycles; the efficiency of trophectoderm-biopsy is better. PMID- 29325270 TI - [Research development of circulating tumor cell in ovarian epithelial carcinoma]. PMID- 29325269 TI - [Research progress of brain derived neurotrophic factor in the pain of endometriosis]. PMID- 29325268 TI - [Clinical significance of targeting drug-based molecular biomarkers expression in ovarian clear cell carcinoma]. AB - Objective: To assess the expression level of targeting drug-based molecular biomarkers in ovarian clear cell carcinoma (OCCC) tissues and its clinical significance. Methods: A total of 63 OCCC patients included 40 primary OCCC and 23 recurrent OCCC for secondary cytoreductive surgery (SCS), who had received primary surgeries at Fudan University Shanghai Cancer Center between January, 2008 and December, 2015 were enrolled, and immunohistochemistry SP method was used to test human epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-2 (HER2), aurora kinase A (AURKA), breast cancer susceptibility gene 1 (BRCA1), BRCA2 and programmed death-ligand 1 (PD-L1)protein expression in paraffin-embedded tissues. Results: The positive rates of EGFR, HER2, AURKA,BRCA1, BRCA2 and PD-L1 in primary and recurrent tumor tissues were respectively 20% (8/40) vs 30% (7/23) , 22% (9/40) vs 35% (8/23) , 38% (15/40) vs 35% (8/23) , 42% (17/40) vs 39% (9/23) , 20% (8/40) vs 22% (5/23) , 25% (10/40) vs 17% (4/23) , and there were no significant differences between primary and recurrent OCCC (all P>0.05). chi(2)-test or Fisher exact analysis revealed that HER2 expression in recurrent tumor tissues had a relationship with chemoresistance (P<0.05), while the expression of other biomarkers showed no significant relationship with chemoresistance (all P>0.05). Further, Kaplan-Meier survival analysis showed that patients with HER2 and AURKA-positive expression had a significantly shorter progression-free survival time in primary OCCC (4 months vs 10 months, log-rank test, P<0.05 for HER2; and 4 months vs 10 months, P<0.05 for AURKA); and a shorter overall survival time after SCS in recurrent OCCC (10 months vs 44 months, P<0.05 for HER2; and 13 months vs 43 months, P<0.05 for AURKA). However, multivariate Cox proportional hazards regression analysis indicated that none of these 6 biomarkers was independent risk factor of progression-free survival time of primary OCCC or overall survival time after SCS for recurrent OCCC (P>0.05). Conclusion: HER2 and AURKA could serve as prognostic factors in ovarian clear cell carcinoma. PMID- 29325271 TI - [Research advances in primary biliary cholangitis]. AB - Primary biliary cholangitis (PBC) is a chronic cholestatic disease with unknown pathogenesis. Positive anti-mitochondrial antibody has high sensitivity and specificity in the diagnosis of this disease. Ursodeoxycholic acid is mainly used for the treatment of PBC, but 40% of patients have an unsatisfactory biochemical response to this drug. 6-Ethylchenodeoxycholic acid is a new drug approved for the treatment of PBC, and liver transplantation remains the only effective method for the treatment of patients with end-stage PBC. PMID- 29325272 TI - [Advances in the treatment of primary biliary cholangitis]. AB - Primary biliary cholangitis (PBC) is an autoimmune liver disease mainly involving intrahepatic interlobular bile ducts and can progress to liver fibrosis, liver cirrhosis, and even liver failure. Ursodeoxycholic acid (UDCA) is the first-line therapeutic drug for PBC and can delay disease progression, but as high as 40% of patients have suboptimal response to UDCA. Obeticholic acid, a farnesoid X receptor agonist, has been approved by FDA in May 2016 for patients who have no response to UDCA treatment or cannot tolerate such treatment. Other drugs such as fibrates, glucocorticoids, immunosuppressants, biological agents, and mesenchymal stem cells are gradually used in clinical practice and bring new hope to patients with refractory PBC. PMID- 29325273 TI - [How to understand the clinical significance of autoantibodies in primary biliary cholangitis]. AB - Autoantibodies are important indicators for the diagnosis of primary biliary cholangitis (PBC). The autoantibodies in PBC patients are mainly antimitochondrial antibodies (AMAs) and antinuclear antibodies (ANAs). AMAs are one of the diagnostic indices of PBC. PBC-specific ANAs (nuclear dots or nuclear envelope, anti-sp100, and anti-gp210) have a high specificity in the diagnosis of AMA-negative PBC. This article reviews the clinical significance of these autoantibodies and analyzes some misconceptions about the clinical diagnosis of AMA-negative PBC and PBC-AIH overlap syndrome. PMID- 29325274 TI - [An interpretation of 2017 EASL clinical practice guidelines: the diagnosis and management of patients with primary biliary cholangitis]. AB - Primary biliary cholangitis (PBC) is a chronic autoimmune cholestatic disease and may progress to liver fibrosis, liver cirrhosis, decompensated cirrhosis, and even end-stage liver disease without effective treatment. The diagnosis of PBC is mainly based on the biochemical parameters indicating cholestatic hepatitis and the presence of specific autoantibody in circulation. The goals of the treatment and management of PBC are to prevent the development of end-stage liver disease, to improve related clinical symptoms, and to improve patients' quality of life. Since PBC has relatively strong heterogeneity and the clinical manifestations and course of PBC can be diverse, it is necessary to provide long-term individualized treatment and follow-up for such patients. Here we provide an interpretation of the 2017 EASL Clinical Practice Guidelines for the diagnosis and management of patients with PBC, in order to better understand recent clinical research evidence and updated recommendations. In particular, we focus on the key points in the diagnosis, treatment, and follow-up strategies of PBC and emphasizing that timely and accurate risk stratification and proper clinical research enrollment may bring benefits to patients with refractory PBC. PMID- 29325275 TI - [Qualitative pathological assessment of liver fibrosis regression after antiviral therapy in patients with chronic hepatitis B]. AB - Objective: To investigate the methods for qualitative pathological assessment of dynamic changes in liver fibrosis/cirrhosis after antiviral therapy in patients with chronic hepatitis B (CHB), since antiviral therapy can partially reverse liver fibrosis and cirrhosis caused by hepatitis B and semi-quantitative, rather than qualitative, pathological assessment is often used for the research on liver fibrosis regression. Methods: Previously untreated CHB patients with liver fibrosis and cirrhosis were enrolled, and liver biopsy was performed before treatment and at 78 weeks after the antiviral therapy based on entecavir. The follow-up assessment was performed once every half a year. Based on the proportion of different types of fibrous septum, we put forward the new qualitative criteria called P-I-R classification (predominantly progressive, predominantly regressive, and indeterminate) for evaluating dynamic changes in liver fibrosis. This classification or Ishak fibrosis stage was used to evaluate the change in liver fibrosis after treatment and Ishak liver inflammation score was used to evaluate the change in liver inflammation after treatment. Results: A total of 112 CHB patients who underwent liver biopsy before and after treatment were enrolled, and among these patients, 71 with an Ishak stage of >=3 and qualified results of live biopsy were included in the final analysis. Based on the P-I-R classification, 58% (41/71) were classified as predominantly progressive, 29% (21/71) were classified as indeterminate, and 13% (9/71) were classified as predominantly regressive; there were no significant differences between the three groups in alanine aminotransferase, aspartate aminotransferase, albumin, HBeAg positive rate, HBV DNA, and liver stiffness (P < 0.05). After treatment, the proportion of predominantly progressive, indeterminate, or predominantly regressive patients changed to 11% (8/71), 11% (8/71), and 78% (55/71), respectively. Among the 35 patients who had no change in Ishak stage after treatment, 72% (25/35) were classified as predominantly regressive and had certain reductions in the Laennec score, percentage of collagen area, and liver stiffness. Conclusion: This new P-I-R classification can be used to assess the dynamic changes in liver fibrosis after antiviral therapy in CHB patients. PMID- 29325276 TI - [A clinical study of antiviral therapy for patients with compensated hepatitis C cirrhosis]. AB - Objective: To investigate the effect of antiviral therapy on the progression of liver cirrhosis and related predictive factors through a retrospective analysis of patients with compensated hepatitis C cirrhosis. Methods: The patients with compensated hepatitis C cirrhosis who were treated in our hospital from 2004 to 2015 were divided into sustained virologic response (SVR) group, non-SVR (NSVR) group, and untreated group. The baseline features of patients with or without liver cirrhosis were compared to identify the predictive factors for the progression of liver cirrhosis. The changes in platelet count, spleen sizes, Model for End-Stage Liver Disease (MELD) score, Sequential Organ Failure Assessment (SOFA) score, and Child-Turotte-Pugh (CTP) score were analyzed, and the incidence rate of liver cancer was compared between groups. A one-way analysis of variance, the Kruskal-wallis H test, the two-independent-sample t test, the chi-square test, and a multivariate logistic regression analysis were used for data analysis based on data type. Results: A total of 89 patients with compensated liver cirrhosis were enrolled, among whom 42 received the antiviral treatment with interferon and ribavirin (30 were treated with pegylated interferon-alpha and 12 were treated with ordinary interferon) and 47 did not receive any antiviral therapy. Among the patients who received the antiviral treatment with interferon and ribavirin, 20 achieved SVR and 22 did not achieve SVR. Compared with baseline values, platelet count in the SVR group and the NSVR group was increased by (44.93 +/- 32.66)*10(9)/L and (9.73 +/- 28.83)*10(9)/L, respectively, and platelet count in the untreated group was reduced by (19.76 +/- 54.5)*10(9)/L; the three groups had a significant change in platelet count (F = 14.731, P < 0.001). Spleen size was reduced by 0.91 +/- 1.09 cm in the SVR group and increased by 0.20+/-0.84 cm and 1.11 +/- 1.69 cm in the NSVR group and the untreated group, respectively; the three groups had a significant change in spleen size (F = 14.943, P < 0.001). The three groups had no significant changes in MELD, SOFA, and CTP scores (P > 0.05). One patient (5.00%) in the SVR group, 5 (22.73%) in the NSVR group, and 6 (12.77%) in the untreated group progressed to liver cancer (chi (2) = 13.787, P = 0.001). The univariate analysis showed that SVR, HCV RNA, total bilirubin, and albumin were predictive factors for disease progression, and the multiple logistic regression analysis demonstrated that SVR and total bilirubin were predictive factors for disease progression. Conclusion: Interferon combined with ribavirin has a marked clinical effect in the treatment of compensated hepatitis C cirrhosis with good short- and long-term efficacy. PMID- 29325277 TI - [Effect of Fuzheng Huayu capsules on survival rate of patients with liver cirrhosis]. AB - Objective: To investigate the effect of Fuzheng Huayu capsules on the survival rate of patients with liver cirrhosis. Methods: A retrospective analysis was performed for the clinical data of the patients with various types of liver cirrhosis who were hospitalized in Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine from January 1, 2006 to December 31, 2008. The data collected for these patients included their basic information, diagnosis and treatment, and results of laboratory examination. The Kaplan-Meier method was used to analyze the effect of Fuzheng Huayu capsules on the survival rate of patients with liver cancer. The starting point of observation was the first day of the patient's admission and the ending point of follow-up observation was the date of death or the end of follow-up April 1, 2014. The cut off value was obtained if the patient did not experience any outcome event (death) at the end of follow-up. With reference to the outcome, the time when the outcome occurred, and the cut-off value, the life-table method was used to calculate survival rates and survival curves were plotted. The Kaplan-Meier product-limit method was used to calculate the arithmetic mean of survival time and median survival time, and the log-rank test was used to compare the survival data. Results: A total of 430 patients with liver cirrhosis were enrolled, among whom 191 died and 239 survived or were censored. The average constituent ratio of death was 55.6% and the average constituent ratio of survival was 44.4%. The life table method showed that the half-, 1-, 2-, and 5-year survival rates were 70%, 64%, 58%, and 48%, respectively. The median survival time was 112.1 weeks for the patients who did not take Fuzheng Huayu capsules and 351.6 weeks for those who did, and there was a significant difference in survival rate between the two groups (P = 0.000). Among 313 patients who had an etiology of hepatitis B, 164 did not take Fuzheng Huayu capsules and had a median survival time of 195.9 weeks and a 5-year survival rate of 44%, and 149 took Fuzheng Huayu capsules and had a median survival time of 336.9 weeks and a 5-year survival rate of 59%; there was a significant difference in survival rate between the two groups (P = 0.038). Among 117 patients who did not have hepatitis B, 68 did not take Fuzheng Huayu capsules and had a median survival time of 78.1 weeks and a 5-year survival rate of 32%, and 49 took Fuzheng Huayu capsules and had a median survival time of 277.4 weeks and a 5-year survival rate of 53%; there was a significant difference in survival rate between the two groups (P = 0.013). Among 92 patients with compensated liver cirrhosis, 47 did not take Fuzheng Huayu capsules and had a 5 year survival rate of 65%, and 45 took Fuzheng Huayu capsules and had a 5-year survival rate of 82%; both groups of patients had a median survival of 440 weeks; there was a significant difference in survival rate between the two groups (P = 0.027). Among 338 patients with decompensated liver cirrhosis, 185 did not take Fuzheng Huayu capsules and had a median survival time of 60.3 weeks and a 5-year survival rate of 33%, and 153 took Fuzheng Huayu capsules and had a median survival time of 267.7 weeks and a 5-year survival rate of 51%; there was a significant difference in survival rate between the two groups (P = 0.001). Conclusion: Fuzheng Huayu capsules can improve the prognosis of patients with liver cirrhosis and increase their survival rates and have good long-term efficacy. PMID- 29325278 TI - [Effect of cannabinoid receptor-2 agonist AM1241 on platelet-derived growth factor expression in the liver tissue of mice with hepatic fibrosis]. AB - Objective: To investigate the effect of cannabinoid receptor-2 (CB2) agonist AM1241 on the mRNA and protein expression of platelet-derived growth factor (PDGF) and collagen-III (Col-III) in the liver tissue of mice with experimental liver fibrosis induced by carbon tetrachloride (CCl(4)). Methods: Totally 38 8 week-old male C57BL/6J mice were randomly divided into control group, model group, 3 mg/kg CB2 receptor agonist (AM1241) group, and 9 mg/kg AM1241 group. All mice, except for the control group, were treated with 30% CCl(4) (three times a week, 5 ml/kg body weight, 16 weeks) to establish a liver fibrosis model. Meanwhile, 3 and 9 mg/kg AM1421 was intraperitoneally injected for daily intervention, respectively. The dosage was adjusted according to actual body weight. The same solvent was given in the control group. The serum level of aspartate aminotransferase (AST) was measured by serum enzyme digestion. The liver inflammation and fibrosis were observed by HE staining of tissue slices. The mRNA and protein expression of PDGF and Col-III in hepatic tissue was determined by real-time PCR and immunohistochemistry. Results: Compared with the control group, the mice in model group showed severe liver fibrosis, significantly elevated serum AST level (742 +/- 300.8 U/L vs 118.1 +/- 31.1 U/L, P < 0.05), and significantly increased mRNA and protein expression of PDGF and Col-III in liver tissue (P < 0.05). Compared with the model group, the mice in 3 mg/kg AM1241 group and 9 mg/kg AM1241 group had less severe liver fibrosis, and significantly reduced serum AST levels (116.6 +/- 13.68 U/L vs 742 +/- 300.8 U/L, P < 0.05; 113.8 +/- 16.01 U/L vs 742 +/- 300.8 U/L, P < 0.05) and mRNA and protein expression of PDGF and Col-III in liver tissue (P < 0.05). Conclusion: CB2 receptor agonist AM1241 can inhibit the mRNA and protein expression of PDGF in the liver tissue of mice with hepatic fibrosis, and reduce extracellular matrix synthesis. PMID- 29325279 TI - [Characteristics of IgH-CDR3 repertoire of peripheral B cells in a patient with primary biliary cholangitis: a preliminary study using high-throughput sequencing]. AB - Objective: To analyze the characteristics of immunoglobulin heavy chain complementarity-determining region (IgH-CDR3) repertoire of peripheral B cells in a patient with primary biliary cholangitis (PBC) and to investigate the diversity of the immune system. Methods: Arm-PCR was used to amplify the IgH-CDR3 region of circulating B cells isolated from a PBC patient, and high-throughput sequencing was used to analyze the amplified product. The characteristics of immune repertoire were analyzed by bioinformatics. Results: In total, 329219 sequence reads were generated from the sample, with 325540 total CDR3 sequences and 72774 distinct CDR3 sequences, and the D50 of IGH-CDR3 was 7.7. The dominant CDR3 length of the sample was 45 nt (9.6%); the N addition with the highest frequency ranged from 13 to 14 nt (5.25%); the J trimming with the highest frequency was 0 nt (12.7%); the three most frequent V alleles were V4-59 (9.5%), V3-23 (8.1%), and V1-69 (6.4%). Conclusion: The diversity of IgH-CDR3 repertoire is relatively low in this patient with PBC, with several B-cell clonal expansions. The specificity needs to be further verified after increasing the sample size. PMID- 29325280 TI - [Clinical value of anti-liver/kidney microsomal-1 antibody in patients with liver disease]. AB - Objective: To investigate the clinical and laboratory features of patients with liver disease and positive anti-liver/kidney microsomal-1 (anti-LKM-1) antibody, and to provide a reference for clinical diagnosis and differential diagnosis. Methods: The clinical data of patients with positive anti-LKM-1 antibody who were treated in our hospital from 2006 to 2016 were collected, and clinical and laboratory features were analyzed and compared. An analysis was also performed for special cases. Results: The measurement of related autoantibodies was performed for about 100 thousand case-times, and 15 patients were found to have positive anti-LKM-1 antibody. Among the 15 patients, 7 were diagnosed with type 2 autoimmune hepatitis (AIH) with an age of 11.0 +/- 9.0 years and were all adolescents with acute onset; 8 were diagnosed with hepatitis C with an age of 51.5 +/- 9.0 years, among whom 7 were middle-aged patients and 1 was a child aged 12 years, and all of them had an insidious onset. Compared with the patients with hepatitis C, the AIH patients had significantly higher levels of alanine aminotransferase (1 003.9 +/- 904.3 U/L vs 57.0 +/- 84.1 U/L, P < 0.05), aspartate aminotransferase (410.7 +/- 660.3 U/L vs 34.9 +/- 42.9 U/L, P < 0.05), and total bilirubin (98.0 +/- 191.0 MUmol/L vs 15.4 +/- 6.0 MUmol/L, P < 0.05). There was a reduction in immunoglobulin G after the treatment with immunosuppressant, compared with the baseline. Of all 8 patients with hepatitis C, 6 received antiviral therapy with interferon and ribavirin, and 5 out of them achieved complete response, among whom 4 had a reduction in the level of anti-LKM 1 antibody after treatment; however, a 12-year-old child developed liver failure after interferon treatment and died eventually. Conclusion: Positive anti-LKM-1 antibody is commonly seen in patients with type 2 AIH or hepatitis C, but there are differences between these two groups of patients in terms of age, disease onset, liver function, and the level of anti-LKM-1 antibody. The hepatitis C patients with a confirmed diagnosis and exclusion of autoimmune hepatitis can achieve good response to interferon under close monitoring, even if anti-LKM-1 antibody is positive. As for adolescent patients with hepatitis C and positive anti-LKM-1 antibody, the possibility of AIH should be excluded. PMID- 29325281 TI - [Value of hydrogen proton magnetic resonance spectroscopy in the determination of liver triglyceride in patients with fatty liver disease and its influencing factors]. AB - Objective: To investigate the value of 1H-magnetic resonance spectroscopy ((1)H MRS) in determining the content of liver triglyceride in patients with fatty liver disease (FLD), as well as its influencing factors. Methods: A total of 124 patients with nonalcoholic fatty liver disease (NAFLD), chronic hepatitis B (CHB), or hepatitis B complicated by FLD who underwent liver biopsy in the Affiliated Hospital of Hangzhou Normal University were enrolled, and the clinical data, serological markers, FibroScan results, and (1)H-MRS results were collected. A correlation analysis was performed with the results of liver biopsy as the gold standard, and the influence of factors including hepatitic B virus (HBV) infection and obesity on accuracy was analyzed. A one-way analysis of variance was used for comparison of means between the three groups, and the LSD or SNK test (for homogeneity of variance) or the Tamhane's or Dunnett's test (heterogeneity of variance) was used for comparison between any two groups. The t test was used for comparison of continuous data between groups, and the chi square test was used for comparison of categorical data. The MRS-PDFF receiver operating characteristic (ROC) curve was plotted, the area under the ROC curve (AUC) was calculated, the optimal cut-off points for the diagnosis of NAFLD were estimated, and sensitivity and specificity were calculated. Results: The NAFLD group (42 patients) and the CHB + NAFLD group (40 patients) had a significantly higher proton density fat fraction (PDFF, the content of triglyceride in the liver) than the CHB group (42 patients) (16.84+/-9.76/9.39 +/- 5.50 vs 3.45 +/- 1.63, P < 0.001). The results were significantly correlated with the degree of steatosis confirmed by liver biopsy (P < 0.001), but it was not significantly correlated with inflammation or fibrosis grade. The correlation analysis showed that the MRS-PDFF value measured by 1H-MRS was significantly correlated with body mass index (BMI), blood lipids, alkaline phosphatase, and blood glucose, while it was not significantly correlated with age, sex, or the presence or absence of hepatitis B. The ROC curve analysis showed that the AUCs of PDFF measured by 1H MRS were 0.93, 0.974, and 0.976, respectively, for the diagnosis of steatosis S1(>=5%), S2(>=34%), and S3(>=66%), and the corresponding optimal thresholds were 5.14%, 11.16%, and 16.7%, respectively. Conclusion: 1H-MRS has a high diagnostic value in quantitative evaluation of the degree of liver steatosis in patients with FLD and is not affected by the factors such as HBV infection, age, and sex, while it is correlated with BMI and lipid metabolism. PMID- 29325282 TI - [An evolutionary analysis of HCV genotype 6 in Li people in Hainan Province, China]. PMID- 29325283 TI - [Upper gastrointestinal bleeding caused by exfoliative esophagitis in one patient with hepatitis B cirrhosis]. PMID- 29325284 TI - [Risk factors and therapeutic strategies for primary biliary cholangitis patients with poor prognosis]. AB - With the progress in detection methods and the update of diagnostic and therapeutic concepts, more and more patients with primary biliary cholangitis (PBC) have been diagnosed and treated. A high proportion of PBC patients, however, progress to liver decompensation, with an increased risk of liver transplantation and death and a significant reduction in long-term survival. These patients need early diagnosis and urgent treatment. This article discusses how to identify the PBC patients with poor prognosis early from the aspects of biochemical response, disease features, and biomarkers, and reviews the progress in related complementary therapies and new drugs including Ocaliva, Fibrates, UDCA-derived drugs, and molecular targeted drugs. PMID- 29325285 TI - [Primary biliary cholangitis and bile acid metabolism]. AB - Primary biliary cholangitis (PBC) is an immune-mediated cholestatic liver disease of unknown pathogenesis. The research on immunologic injury in the past helps us to understand more about this disease, but there are still many problems and challenges in the research on PBC. With a focus on the cholestatic features of PBC, this article reviews the research advances in bile acid metabolism in the field of PBC, in order to provide new thoughts for future research. PMID- 29325286 TI - [Research advances in the role of the Hippo-YAP/TAZ signaling pathway in primary liver cancer]. AB - The Hippo-YAP/TAZ signaling pathway is an evolutionarily conserved pathway, which has been confirmed to play an important role in organ volume control, stem cell function, tissue regeneration, and tumorigenesis. Recent research findings show that the Hippo-YAP/TAZ signaling pathway is closely associated with the development and progression of primary liver cancer, and inhibition of the activity of this pathway may be a new method for the treatment of liver cancer. This article reviews the research advances in the role of the Hippo-YAP/TAZ signaling pathway in primary liver cancer. PMID- 29325287 TI - [The diagnostic value and limits of diagnostic parameters for Wilson's disease]. AB - Wilson disease (WD) is a rare and treatable genetic disorder. This paper describes the new advances and author's long-term experiences in the diagnosis of WD. The characteristics in clinical and routine tests are: the age of presentation can be quite broad, the WD could not be excluded based on age only; the patients usually have mild digestive symptoms but obvious chronic liver disease signs; liver function tests may reveal normal or a mild elevation in bilirubin, ALT and AST, but quite abnormal in serum albumin and prothrombin time in most patients; Coombs-negative hemolytic anemia, normal or markedly subnormal serum alkaline phosphatase (typically < 40 IU/L) are useful for the diagnosis of fulminant WD. In china, Kayser-Fleischer rings are present in 72.2% of patients at the time of diagnosis, the positive rate is significantly higher in patients with a neurological presentation (93.4%) than patients presenting with liver disease (63.3%), however, they are usually absent in children under 6 years old, occasionly present in patients with chronic cholestatic liver disease. The mean serum ceruloplamin level in WD patients is 71.1 +/- 48.7 mg/L, the level is < 200 mg/L in 98.9% of patients, < 100 mg/L in about three fourths patients, < 50 mg/L in about half patients, but it may be low in 50% of patients with severe end stage liver disease of any etiology too, and even lower than 50 mg/L in patients with nephritic syndrome. Basal 24-hour urinary copper excretion may be>=100 g at presentation in 86.7% of patients with WD, but also in 22% of Patients with certain chronic liver diseases, the sensitivity of penicillamine challenge test is lower than basal urinary copper excretion, however, the specificity is significantly higher than former (97% versus 78%). Hepatic copper determination remains the gold standard for the diagnosis of WD. We have designed a standard method for hepatic copper determination. The most useful cut-off value is 209 g/g dry wt using our method, with the sensitivity of 99.4%, and specificity of 96.1%. However, long-standing hepatic failure and or obstruction can cause heptic copper elevations into the WD area. In recent years, direct complete DNA sequencing has become easy, rapid, less expensive and commercially available. Currently reported mutation detection rate is 90%, the specificity is almost 100%. The limitation to the method has been the ability to identify all the affected alleles in suspected individuals. If no mutation is identified, the diagnosis of WD could not be excluded. None of the laboratory parameters alone allows a definite diagnosis of WD. The WD diagnostic scoring system based on a composite of key parameters helps clinicians to gauge the degree of certainty of the diagnosis: WD scores greater than 4, the diagnosis of WD is highly likely; score 0 or 1, the diagnosis is unlikely. However, the WD diagnosis could not be excluded in suspected patients who do not perform genetic test and hepatic copper determination. Patients with chronic cholestatic liver disease may have scores more than 4. PMID- 29325288 TI - [Diagnosis, management, and treatment of hepatocellular carcinoma (V2017)]. PMID- 29325289 TI - [Optimal treatment regimen for patients with HBeAg-positive chronic hepatitis B after suboptimal response to 24 weeks of Peg-IFN alpha-2a]. AB - Objective: To investigate the optimal treatment regimen for patients with HBeAg positive chronic hepatitis B (CHB) after suboptimal response to 24 weeks of pegylated interferon (Peg-IFN) alpha-2a. Methods: A total of 188 patients with HBeAg-positive CHB who had suboptimal response to 24 weeks of Peg-IFN alpha-2a were randomly divided into entecavir group (n = 93) and telbivudine group (n = 95). The two groups received entecavir 0.5 mg/d and telbivudine 0.6 g/d, respectively, for 208 weeks. After 208 weeks of treatment, the following indices were assessed: HBeAg clearance rate and seroconversion rate, hepatitis B virus (HBV) DNA clearance rate (HBV DNA < 500 IU/ml), safety, and drug resistance rate. The data were subjected to intention-to-treat (ITT) analysis and per protocol (PP) analysis. Univariate and multivariate logistic regression analyses were performed for the drugs used and baseline characteristics in patients with or without HBeAg seroconversion, and stratification analysis was performed based on the baseline HBeAg level. Results: Six cases in the entecavir group and four cases in the telbivudine group did not complete the treatment. Sequential entecavir and telbivudine were well tolerated and safe for all patients. There was a significant difference in HBV DNA clearance rate at 52 weeks of treatment between the entecavir group and the telbivudine group (ITT analysis: 93.55% [87/93] vs 77.89% [74/95], chi (2) = 9.363, P = 0.002; PP analysis: 93.10% [81/87] vs 76.92% [70/91], chi (2) = 9.049, P = 0.003). The suppression rates of HBV DNA at 208 weeks of treatment were 95.70% (89/93) vs 92.63% (88/95) (ITT analysis) and 95.40% (83/87) vs 92.31% (84/91) (PP analysis). There was a significant difference in HBeAg seroconversion rate at 208 weeks of treatment between the entecavir group and the telbivudine group (ITT analysis: 38.71% [36/93] vs 62.11% [59/95], chi (2) = 10.290, P = 0.001; PP analysis: 41.38% [36/87] vs 64.84% [59/91], chi (2) = 9.833, P = 0.002). Univariate and multivariate logistic regression analyses suggested that sequential use of telbivudine, male sex, and the baseline level of HBeAg were significantly associated with HBeAg seroconversion at 208 weeks of treatment (P = 0.003, hazard ratio [HR] = 0.386; P = 0.009, HR = 0.303; P = 0.001, HR = 3.502). Conclusion: For patients with HBeAg-positive CHB after suboptimal response to 24 weeks of Peg IFNalpha-2a, sequential use of telbivudine is the optimal treatment regimen according to the baseline level of HBeAg (baseline guidance). The incidence of HBeAg seroconversion during 208 weeks of sequential treatment can be significantly increased according to the HBeAg decline curve in early treatment (24 weeks) and 104 weeks (response guidance). PMID- 29325290 TI - [Effect of hepatitis C virus nonstructural protein 5A and its domains II on hepatocyte gluconeogenesis in mice]. AB - Objective: To investigate the role of hepatitis C virus nonstructural protein 5A (NS5A) and its domains I, II, and III in regulating gluconeogenesis in mice and the underlying mechanism. Methods: A total of 60 male C57BL/6J mice were randomly divided into six groups. Recombinant lentiviral particles with specific expression of full-length NS5A, NS5A domain I, NS5A domain II, or NS5A domain III were injected via the caudal vein to establish a mouse model, and the group without injection and the group with the injection of the lentiviral particles containing enhanced green fluorescent protein (EGFP) were established as negative control. The effect of full-length NS5A protein and its domains on fasting blood glucose (FBG) and fasting serum insulin (FINS) were measured. Liver tissue was collected to prepare a paraffin section. Immunohistochemistry was used to measure the expression of phosphoenolpyruvate carboxykinase (PEPCK) in hepatocytes, quantitative real-time PCR and/or Western blot were used to measure the expression of NS5A, phosphorylated adenosine monophosphate-activated protein kinase (p-AMPK), sterol regulatory element-binding protein-1 (SREBP-1), and PEPCK. Results: Compared with the group without injection and the group with the injection of the lentiviral particles containing EGFP, the groups with the injection of the lentiviral particles containing full-length NS5A and NS5A domain II had significant increases in FBG and homeostasis model assessment of insulin resistance index (P < 0.01). Immunohistochemistry and quantitative real-time PCR showed a significant increase in the expression of PEPCK, a key enzyme involved in gluconeogenesis. Western blot showed that full-length NS5A protein and NS5A domain II inhibited the level of p-AMPK and increased the levels of SREBP-1 and PEPCK. Conclusion: NS5A protein and NS5A domain II may affect glucose metabolism in hepatocytes in mice by regulating AMPK/SREBP-1/PEPCK, and NS5A domain II may play an important role in insulin resistance in hepatocytes caused by HCV infection. PMID- 29325291 TI - [Hepatitis B core antigen promotes invasion of hepatocellular carcinoma cell line HepG2.2.15 via Toll-like receptor 4]. AB - Objective: To investigate the effect of hepatitis B core antigen (HBcAg) in promoting the invasion of hepatitis B virus (HBV)-related hepatocellular carcinoma cell line HepG2.2.15 and the role of Toll-like receptor 4 (TLR4) in the mechanism. Methods: TLR4 mRNA and protein expression in HepG2 cells and HepG2.2.15 cells was measured by reverse transcription real-time PCR and Western blot analysis, respectively. HepG2.2.15 cells were transfected with TLR4 specific small interfering RNA (siRNA) to silence TLR4 expression, and stimulated by recombinant HBcAg in culture. The invasion of cells was measured by Transwell invasion assay. The expression of TLR4 signaling pathway-related proteins in the cultured cells and proinflammatory cytokines in the supernatant was also determined. The student's t-test, one-way ANOVA, and SNK-q test were used for statistical analysis. Results: TLR4 mRNA and protein expression in HepG2.2.15 cells was significantly higher than that in HepG2 cells. TLR4 siRNA transfection remarkably down-regulated TLR4 expression in HepG2.2.15 cells. Inhibiting TLR4 expression and/or HBcAg stimulation did not affect the proliferation of HepG2.2.15 cells. However, HBcAg stimulation significantly increased the invasion ability of HepG2.2.15 cells and the secretion of proinflammatory cytokines [including interferon (IFN)-gamma, interleukin (IL)-6, IL-8, and tumor necrosis factor (TNF)-alpha]. Inhibiting TLR4 expression significantly reduced HBcAg induced cellular invasion. Meanwhile, HBcAg stimulation elevated the expression of MyD88 and TRIF in HepG2.2.15 cells. TLR4 silencing inhibited HBcAg-induced increase in the expression of MyD88, while it showed no significant impact on TRIF expression. Conclusion: HBcAg can promote the invasion of HepG2.2.15 cells. The TLR4/MyD88 signaling pathway may be involved in this process by inducing the expression of proinflammatory cytokines. PMID- 29325292 TI - [Therapeutic effect of transcatheter arterial chemoembolization combined with ultrasound-guided microwave ablation for treatment of liver cancer in special sites]. AB - Objective: To investigate the efficacy and clinical value of transcatheter arterial chemoembolization (TACE) combined with ultrasound-guided microwave ablation for the treatment of liver cancer in special sites. Methods: The patients with liver cancer in special sites (the liver cancer was adjacent to the gallbladder, dome of diaphragm, gastrointestinal tract, heart, great vessels, and portal vein, with the shortest distance from the tumor to the organ/lumen < 0.5 cm ) were enrolled as treatment group, and the patients with primary liver cancer in normal sites treated in our hospital during the same period were randomly enrolled as control group. They underwent TACE combined with ultrasound-guided microwave ablation. The 6-month, 12-month, 18-month and 24-month survival rates of the patients in two groups were analyzed. Results: The clinical data of 40 patients with liver cancer in special sites, including 9, 7, 5, 11, 3, 3, and 2 patients with liver cancer adjacent to the gallbladder, dome of diaphragm, gastrointestinal tract, portal vein, hepatic vein, inferior vena cava, and heart, respectively, and another 40 patients in control group were collected in the study. The negative rate of alpha-fetoprotein (AFP) was 83.3% in the treatment group and 82.8% in the control group. The 6-month, 12-month, 18-month, and 24 month survival rates were 100.0%, 95.0%, 90.0%, and 80.0%, respectively, in the treatment group, and 100.0%, 97.5%, 92.5%, and 85.0%, respectively, in the control group. Conclusion: TACE combined with ultrasound-guided microwave ablation is as effective for liver cancer in special sites as for those in normal sites, with high safety, and is feasible in clinical application. PMID- 29325293 TI - [Expression of miR-212 and miR-132 in serum of patients with primary liver cancer and their targeted regulation of GP73]. AB - Objective: To investigate the expression of miR-212 and miR-132 in the serum of patients with primary liver cancer and their targeted regulation of GP73. Methods: The patients with liver cancer, chronic hepatitis B, or liver cirrhosis who were hospitalized in Taizhou People's Hospital from January 2015 to December 2016 were enrolled, and healthy volunteers were also enrolled as controls. Quantitative real-time PCR was used to measure the serum levels of miR-212 and miR-132, and the association between the expression of serum miR-212 and miR-132 and the clinicopathological features of patients with liver cancer was analyzed. A Spearman's rank correlation analysis was used to analyze the correlation between serum miR-212/miR-132 and GP73. Western blot was used to measure the protein expression of GP73, and MTT assay was used to measure the survival rate of cells. The Levene's homogeneity of variance test was used for data analysis. The independent samples t-test was used for comparison of means between two samples, and ANOVA was used for comparison of means between multiple samples. Results: A total of 90 patients with liver cancer, 60 with chronic hepatitis B, 68 with liver cirrhosis, and 100 healthy volunteers were enrolled. The relative expression levels of miR-212 and miR-132 in serum were 0.046 6 +/- 0.024 7 and 0.005 9 +/- 0.003 0 in the patients with liver cancer, 0.979 7 +/- 0.259 5 and 1.001 8 +/- 0.249 9 in the healthy volunteers, 0.588 2 +/- 0.216 5 and 0.345 7 +/ 0.233 8 in the patients with hepatitis, and 0.313 8 +/- 0.153 3 and 0.080 1 +/- 0.042 66 in the patients with liver cirrhosis. Compared with the normal controls, all patients had significant reductions in the expression of serum miR-212 (t = 10.26, 20.86, and 35.80, all P < 0.01) and miR-132 (t = 16.55, 36.09, and 39.85, all P < 0.01). In the patients with liver cancer, the relative expression of miR 212 and miR-132 was negatively correlated with alpha-fetoprotein (miR-212: t = 4.46, P < 0.01; miR-132: t = -4.83, P < 0.01), TNM stage (miR-212: t = 6.569, P < 0.01; miR-132: t = 7.31, P < 0.01), degree of tumor differentiation (miR-212: t = 5.268, P < 0.01; miR-132: t = 5.914, P < 0.01), and presence of portal vein tumor thrombus (miR-212: t = 5.16, P < 0.01; miR-132: t = 3.681, P < 0.01), while it was not correlated with tumor size (miR-212: t = 0.687, P > 0.05; miR-132: t = 0.887, P > 0.05). In addition, serum miR-212 and miR-132 were negatively correlated with GP73 in the patients with liver cancer (miR-212: r(s) = -0.709, P < 0.01; miR-132: r(s) = -0.877, P < 0.01). Overexpression of miR-212 or miR-132 in HepG2 cells significantly inhibited the activity and expression of 3'-UTR, and interference of miR-212 or miR-132 significantly increased the activity and expression of 3'-UTR in GP73. Overexpression of GP73 reversed the reduction in survival rate of hepatoma cells induced by the overexpression of miR-212 or miR 132. Conclusion: Patients with liver cancer have a significant reduction in the expression of miR-212 and miR-132 in serum, which is closely associated with the development, progression, and metastasis of liver cancer, and miR-212 and miR-132 in hepatoma cells inhibit the growth of liver cancer by targeted regulation of GP73 expression. PMID- 29325294 TI - [Effects of Lactobacillus paracasei N1115 combined with fructooligosaccharides on non-alcoholic fatty liver disease induced by high-fat diet in mice]. AB - Objective: To investigate the effects of Lactobacillus paracasei N1115 combined with fructooligosaccharides (FOS) on non-alcoholic fatty liver disease (NAFLD) in mice and its possible mechanism. Methods: A total of 50 male C57 mice were randomly and equally divided into five experimental groups. Group 1 received a normal diet (ND). Other four groups received a high-fat diet (HFD) to establish NAFLD models. In addition to HFD, group 3 received Lactobacillus paracasei N1115 (2.2*10(9) CFU/mL), group 4 received FOS (4 g/kg per day), and group 5 received Lactobacillus paracasei N1115 (2.2*10(9) CFU/mL) and FOS (4 g/kg per day). All groups received continuous intervention for 16 weeks. The following indices were measured for all groups after intervention: general condition, the levels of fasting blood glucose, insulin, and lipopolysaccharide (LPS), and the levels of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-6, and interferon (IFN)-gamma in the serum and liver. The mRNA levels of Toll-like receptor (TLR)4, nuclear factor (NF)-kappab, insulin receptor (InsR), and insulin receptor substrate (IRS)-1 were measured by real-time RT-PCR. The data were subjected to one-way analysis of variance and comparison between groups was made by Bonferroni method. Results: Compared with group 2, groups 3, 4, and 5 had significantly lower body weight, Lee's index, liver index, and the levels of blood glucose and insulin resistance (P < 0.05). The serum level of LPS in group 2 was significantly higher than that in the other experimental groups (group 1: 8.80 +/ 0.85 U/L, group 3: 12.31 +/- 1.01 U/L, group 4: 12.27 +/- 0.98 U/L, and group 5: 10.17 +/- 0.79 U/L vs group 2: 15.45 +/- 1.14 U/L, F = 55.117, P < 0.001). The levels of TNF-alpha, IL-1beta, IL-6, and IFN-gamma in the serum and liver in group 2 were also significantly higher than those in the other groups (P < 0.05). Group 2 had significantly higher mRNA levels of TLR4 and NF-kappab in the liver than the other groups (F = 82.933, P < 0.001; F = 149.033, P < 0.001); however, it had significantly lower mRNA levels of InsR and IRS-1 in the liver than the other groups (F = 33.347, P < 0.001; F = 70.225, P < 0.001). Conclusion: Lactobacillus paracasei N1115 combined with FOS can reduce the level of LPS in the blood circulation, inhibit activation of the LPS/TLR4 signaling pathway, and reduce the release of inflammatory factor and the body's insulin resistance, so it can relieve NAFLD. PMID- 29325295 TI - [A study on the value of 10 tumor markers in diagnosis of primary hepatic carcinoma]. PMID- 29325296 TI - [Clinical features and treatment of acute fatty liver of pregnancy complicated by acute liver failure]. PMID- 29325297 TI - [Sofosbuvir combined with daclatasvir in treatment of a patient with hepatitis C virus infection undergoing liver and renal transplantation: a case report]. PMID- 29325298 TI - [A case of glycogen storage disease type II and related analysis]. PMID- 29325299 TI - [Hepatitis C-related hepatocellular carcinoma and the treatment with direct acting antiviral agents]. AB - With the wide use of direct-acting antiviral agents (DAAs), more and more patients with chronic hepatitis C achieve sustained virological response; however, no consensus has been reached on the application of DAAs in the treatment of hepatitis C virus-related hepatocellular carcinoma (HCC). This article summarizes and evaluates related issues in this field, including whether antiviral therapy with DAAs in patients with hepatitis C can increase the incidence or recurrence rate of HCC, as well as whether DAAs can be used for hepatitis C in HCC patients after antitumor treatment and the efficacy of DAAs in such patients. PMID- 29325300 TI - [Clinical significance of quantitative level of hepatitis B core antibody]. AB - Hepatitis B core antibody (anti-HBc) targets viral core protein and is produced in patients with hepatitis B virus (HBV) infection, and seroconversion occurs in the early stage of infection and often lasts for a lifetime. Qualitative detection of anti-HBc has been used in clinical practice for many years, while the clinical significance of its quantitative level remains unclear. A novel anti HBc immunoassay based on double-antigen sandwich ELISA has been developed in recent years and lays a foundation for illustrating the change in the quantitative level of anti-HBc (qAnti-HBc) in HBV infection and its clinical significance. Several recent studies have revealed that qAnti-HBc is associated with the degree of hepatitis activity and response to pharmacotherapy and may become an important basis for selecting antiviral drugs, optimizing therapeutic regimen, and predicting treatment outcome. PMID- 29325301 TI - [Role of CD36 in nonalcoholic fatty liver disease]. AB - Nonalcoholic fatty liver disease (NAFLD) includes nonalcoholic simple fatty liver, nonalcoholic steatohepatitis, liver cirrhosis, and liver cancer and is the most common liver disease in the world. The complex pathogenesis of NAFLD is a major concern among researchers. CD36 is a transmembrane glycoprotein that takes up fatty acid and binds to oxidized low-density lipoprotein in the liver, and therefore, it is involved in the development and progression of NAFLD. With reference to the latest research findings, this article reviews the association between CD36 and NAFLD and the role of CD36. PMID- 29325302 TI - [Research advances in pathogenesis of autoimmune hepatitis]. AB - Autoimmune hepatitis (AIH) is liver parenchymal inflammation mediated by the autoimmune response of hepatocytes. Its clinical features include elevation of aminotransferases in serum, presence of various autoantibodies in circulation, hypergammaglobulinemia, and interface hepatitis in liver tissue. Although the etiology and pathogenesis of AIH have not been fully elucidated, a consensus has been reached on the theories of "genetic susceptibility" and "molecular simulation" , and "immunoregulatory disorder" remains a hot research topic for many scholars. This article reviews the research advances in the theories of "genetic susceptibility" , "molecular simulation" , and "immunoregulatory disorder" . PMID- 29325303 TI - [Standardize the management of asthma exacerbation, and improve the treatment level of acute attack]. PMID- 29325304 TI - [The Chinese experts' consensus on the evaluation and management of asthma exacerbation]. AB - Asthma exacerbations can do a lot of harm to the patients and consume large amounts of medical resources. This consensus is based on the domestic and foreign guidelines and literatures to standardize the evaluation and management of asthma exacerbations in China. Asthma exacerbations are characterized by a progressive increase in symptoms of shortness of breath, cough, wheezing or chest tightness and progressive decrease in lung function, and usually require modification of treatment. Recognizing risk factors and triggering factors of asthma exacerbations is helpful for the prevention and long-term management. Evaluation of asthma exacerbations is based on symptoms, lung function, and arterial blood gas. Management is stratified according to the severity of disease. Different regimens to treat asthma exacerbations are discussed in this consensus. Glucocorticoids should be used properly. Overuse of antibiotics should be avoided. Management of life-threatening asthma is discussed separately. Special attention should be paid in some special respects, such as asthma during peri operation period, gestation period, and childhood. Diagnosis and management of complications are also of great significance and are discussed in details. PMID- 29325305 TI - [Evaluation of asthma management from the surveys in 30 provinces of China in 2015-2016]. AB - Objective: To evaluate the general level of asthma management in urban areas of China and further promote the national asthma management plan. Methods: A multi center, cross-sectional survey was carried out in 30 provinces of China (except for Tibet) during Oct 2015 to May 2016. It's a questionnaire-based face-to-face survey which included asthma management using peak flow meter (PFM) and pulmonary function test, medication choice of maintenance therapy and asthma education. Results: A total of 3 875 asthmatic outpatients were recruited including 2 347(60.6%) females and 1 528(39.4%) males. The mean age was (50.7+/-16.7) years ranging from 14 to 99. Only 10.1%(388/3 837) patients used PFM as monitoring, whereas 62.1%(2 405/3 874) patients underwent pulmonary function test during the past year. There were 57.4%(2 226/3 875) patients treated with inhaled cortical steroid plus long-acting beta(2)-agonist combinations (ICS+LABA) as daily medication. 43.3%(1 661/3 836) patients were followed up by physicians. Among this population, 1 362 asthmatic outpatients were recruited, who also took part in the asthma control survey in 2007-2008 in 10 cities. In this subgroup, 17.9%(244/1 360) were tested by PFM and 66.6%(907/1 362) by pulmonary function test during last year. As to the medication, 63.1%(860/1 362) selected ICS+LABA for daily control. There were 50.4%(685/1 359) patients in the follow-up cohort by physicians. Compared to the similar survey conducted in 2007-2008, the proportion of patients with ICS+LABA regimen and follow-up by physicians were markedly higher, while the rate of PFM use did not have significant improvement. Conclusion: Although the present level of asthma management in China is still far from ideal, asthma management has improved compared to 8 years ago. Yet the use of PFM does not significantly improve. Asthma action plan and application of PFM should be further promoted to improve the level of asthma management. PMID- 29325306 TI - [A retrospective study of the inducing factors and clinical characteristics of patients hospitalized for asthma exacerbation in China in 2013-2014]. AB - Objective: To study the inducing factors and clinical characteristics of patients hospitalized for asthma exacerbation in China. Methods: Patients hospitalized for asthma exacerbation at 29 hospitals in China were retrospectively recruited during 2013-2014. Results: Clinical data of 3 240 asthmatic patients were collected and analyzed including 1 369(42.3%) males and 1 871(57.7%) females. The patients hospitalized for asthma exacerbation counted for 2.95% (6 375/215 955) of all patients hospitalized during the same period. The leading six inducing factors, in sequence, were acute upper respiratory tract infection [42.3%(1 370/3 240)], changes of weather [22.8%(738/3 240)], noxious gas [(4.3%(140/3 240), allergy challenges [3.5%(115/3 240)], strenuous exercise [1.8%(57/3 240)], and air pollution [1.5%(49/3 240)]. In older patients, more exacerbations were induced by weather changes, yet less sensitive to allergy challenges. As to middle-aged patients, they were less sensitive to upper respiratory tract infections, however the difference was not statistically significant (P>0.05). In winter more asthma patients were induced by upper respiratory tract infections, while in autumn more patients were induced by weather changes, strenuous exercise and air pollution. In spring and summer more patients were induced by allergy challenges, but the differences failed to achieve statistical significance (P>0.05). In northern cities more patients were induced by upper respiratory infections, whereas in southern cities more by noxious gases. Allergy challenges and air pollution tended to affect more patients in northern cities, but the difference was of no significance (P>0.05). The differences of inducing factors among patients of different gender, with or without a smoking history, and with different exacerbation severity didn't show any statistical significance. The patients with severe and life-threatening exacerbations counted for 20.1% (652/3 240). The percentage of patients older than 60 years was higher in patients with severe or life-threatening exacerbations than in whose with mild or moderate exacerbations, so did the percentage of male patients, of patients with disease duration longer than 10 years, with smoking history, and with a history of hospitalization or emergency department visits due to asthma exacerbation during the last year. Conclusion: The acute upper respiratory tract infection ranks top among all the inducing factors. Senility, male gender, long duration of disease, smoking history, and a history of frequent hospital visits might be the risk factors for severe or life-threatening asthma exacerbations. PMID- 29325307 TI - [The clinical characteristics, diagnosis and treatment of patients with gout in China]. AB - Objective: To investigate the demographic characteristics, clinical features, diagnosis and treatment of patients with gout in China. Methods: Clinical data of 6 814 patients with gout from 100 hospitals in 27 provinces, municipalities or autonomous regions in China were collected and analyzed. Results: (1) The ratio of male to female in patients with gout was 14.7?1. The mean age of onset was (48.8+/-15.1) years old. Mean serum urate level was (526.7+/-132.3) MUmol/L. Patients' education background was of U-shaped distribution; (2) Hypertension was the most common comorbidity [15.8%(1 079/6 814)], then overweight or obesity [51.9%(3 536/6 814)]; (3) Alcohol and high-purine food intake were dominant triggering factors in men. The diagnosis of gout was made after onset in majority of patients with cardinal symptom arthralgia. Most patients had the disease less than 5 years, and the longer the course, the more flares in the previous year of entry; (4) Febuxostat was the mostly used urate-lowering medication. 20.7%(1 412/6 814), 10.8%(739/6 814) and 3.9%(265/6 814) of patients were followed up in 4 weeks, 12 weeks and 24 weeks after registration, and 18.9%(267/1 412), 29.1%(215/739) and 38.1%(101/265) of them reached the control target of serum urate levels, respectively. After treatment, patients' liver function was not affected, but serum creatinine levels decreased significantly. Conclusions: The proportion of gout patients who reach target serum urate level is very low. Further steps including education and survey need to be carried on. PMID- 29325308 TI - [Opportunistic infection in systemic lupus erythematosus patients: the disease spectrum and the characteristics of peripheral lymphocyte subsets]. AB - Objective: To investigate the common opportunistic infections and the characteristics of peripheral lymphocyte subsets in patients with systemic lupus erythematosus (SLE). Methods: From December 2013 to December 2016, peripheral lymphocyte subsets were consecutively detected by flow cytometry in treated SLE patients with or without opportunistic infections (OIs) . The lymphocyte subsets in healthy donors were used as normal control group. Results: A total of 145 treated SLE patients were enrolled including 108 with OIs and 37 without OIs. The common OIs were cytomegalovirus (CMV) diseases (66/108), Pneumocystis jirovecii pneumonia (PJP, 16/108), other fungal infections (16/108), Epstein-Barr virus (EBV, 15/108) and tuberculosis (14/108). Compared with treated SLE without OIs, total lymphocyte, CD(4+) T, and CD(8+) T lymphocyte counts were significantly reduced in SLE with OIs [1 260 (780, 1 810) cells/MUl vs. 565 (399, 1 043) cells/MUl, P<0.001; 485 (280, 811) cells/MUl vs. 173 (95, 327) cells/MUl, P<0.001; 464 (339, 764) cells/MUl vs. 265 (158, 424) cells/MUl, P=0.003, respectively]. Conclusions: The common OIs in treated SLE patients were CMV diseases, PJP, other fungi, EBV and tuberculosis. OIs are prone to develop in SLE patients with severe lymphocytopenia, especially CD(4+) T cell depletion. PMID- 29325309 TI - [Association of Crohn's disease with aryl hydrocarbon receptor gene polymorphisms and haplotypes]. AB - Objective: To explore the relationship of Crohn's disease (CD) susceptibility to aryl hydrocarbon receptor (AhR) polymorphisms and haplotypes in Han population in Wenzhou city, China. Methods: A total of 310 CD patients and 573 age- and sex matched healthy controls were enrolled in our study. Three single nucleotide polymorphisms (SNPs) of AhR(rs10249788,rs2158041,rs2066853) were determined by the improved multiple ligase detection reaction technique. Unconditional logistic regression analyses was applied to analyze the allelic and genotypic differences of each SNP between CD patients and controls, as well as their influence on the clinicopathologic characteristics in CD patients. Analyses of linkage disequilibrium and haplotype were performed by Haploview 4.2 software in all study subjects. Results: Compared with the controls, the variant allele (T) and genotype (CT+TT) of (rs2158041) were evidently decreased among CD patients (19.52% vs. 25.04%, P=0.009; 34.19% vs. 44.68%, P=0.003). According to "the Montreal Classification Standards" , CD patients were divided into different subgroups. The variant allele (T) and genotype (CT+TT) of (rs2158041) were significantly lower in patients with terminal ileum CD than in controls (16.79% vs. 25.04%, P=0.005; 28.24% vs. 44.68%, P=0.001). Similar conclusions were also drawn in patients with constricting disease when compared with the controls (15.20% vs. 25.04%, P=0.003; 28.43% vs. 44.68%, P=0.003). The three SNPs above were shown to be in a linkage disequilibrium. Compared with the controls respectively, the frequency of haplotype (CCG) was increased in CD patients (44.73% vs. 39.60%, P=0.039), whereas that of haplotype (CTG) was decreased (18.02% vs. 22.78%, P=0.047). Conclusions: AhR (rs2158041) variation might influence the risk as well as the location and behavior of CD. The haplotype (CCG) possibly increase the risk of CD development, whereas haplotype (CTG) might decrease it. PMID- 29325310 TI - [Clinical characteristics and whole exon sequence study of a Chinese family with autosomal dominant lateral temporal lobe epilepsy]. AB - Objective: To explore the genetic characteristics in a Chinese family with autosomal dominant lateral temporal lobe epilepsy (ADLTE) and analyze the correlation between genotype and phenotype. Methods: The natural history, clinical data and peripheral blood sample were collected in all patients and two healthy members of this ADLTE family. Whole exon sequence (WES) analysis strategy was used to explore the underlying mutations. Possible causative genetic variation was further confirmed by direct PCR and Sanger sequencing. The genotype phenotype features were compared with previously reported cases. Results: A novel pathogenetic LGI1 frameshift mutation p.T134fs was identified in this study. The clinical phenotype was different from reported. Conclusion: This study reports a pathogenic LGI1 mutation in a Chinese ADLTE family for the first time, which suggests that LGI1 is a new genetic abnormality of ADLTE in Chinese. PMID- 29325311 TI - [Effects of trimetazidine, a myocardial metabolism agent, on regulating 5 hydroxytrytamine system of rats with myocardial infarction and/or depression]. AB - Objective: 5-Hydroxytrytamine (5-HT) system was reported to be associated with myocardial infarction (MI) and depression. The aim of the present study was to study the effect of trimetazidine on 5-HT in MI and/or depression rats. Methods: Ninety rats were divided into three groups: trimetazidine, sertraline and saline groups (n=30 in each group), and pretreated with trimetazidine, sertarline, or saline, respectively, by gavage once a day for 4 weeks. Thereafter, each group was further divided into three subgroups: MI subgroup, depression subgroup, and MI+ depression subgroup. Serum 5-HT, platelet 5-HT, 5-HT(2A) receptor (5 HT(2A)R), and serotonin transporter (SERT) were detected by enzyme linked immunosorbent assay. Results: Similar to sertarline, comparing to saline, trimetazidine treatment increased serum 5-HT [(221+/-23) pg/ml vs. (176+/-11) pg/ml; (395+/-31) pg/ml vs. (195+/-5) pg/ml; (348+/-28) pg/ml vs. (183+/-10) pg/ml], platelet 5-HT [(305+/-22) pg/ml vs. (130+/-27) pg/ml; (252+/-18) pg/ml vs. (175+/-5) pg/ml; (241+/-26) pg/ml vs. (181+/-11) pg/ml], and platelet 5 HT(2A)R levels [(247+/-13) pg/ml vs. (197+/-12) pg/ml; (320+/-13) pg/ml vs. (193+/-18)pg/ml; (334+/-17) pg/ml vs. (206+/-15) pg/ml]), and lowered platelet SERT levels [(248+/-11) pg/ml vs. (323+/-36) pg/ml; (188+/-7) pg/ml vs. (278+/ 20) pg/ml; (170+/-23) pg/ml vs. (282+/-22) pg/ml] in MI, depression and MI+ depression subgroups, respectively (all P< 0.05). When compared the effect of trimetazidine and sertarline treatment, serum 5-HT and platelet 5-HT(2A)R in MI group were significantly lower in trimetazidine than in sertraline group (P<0.05), while serum 5-HT and platelet 5-HT, 5-HT(2A)R in depression group rats were significantly higher in trimetazidine than in sertraline group (P<0.05).Interestingly, platelet 5-HT(2A)R in MI+ depression rats was much higher in trimetazidine than in sertraline group (P<0.05). Conclusions: Trimetazidine, a kind of myocardial metabolism agent, could play a role on the regulation of 5-HT, 5-HT(2A)R, and SERT levels in rats with MI and/or depression. PMID- 29325312 TI - [Outcomes of alternative donor allogeneic hematopoietic stem cell transplantation for Fanconi anemia: a five cases report]. AB - Five patients with Fanconi anemia who received hematopoietic cell transplantation were retrospectively analyzed. The conditioning regimens included fludarabine, cyclophosphamide and anti-thymocyte globulin. Two patients received both bone marrow and peripheral blood stem cells as the source of stem cell grafts from haploidentical matched related donors, while the others received peripheral blood stem cells from unrelated donors. All patients tolerated well and reached hematopoietic reconstitution. One patient died of intracranial infection. During follow-up, 4 patients survived independent of transfusion with full donor chimerism. PMID- 29325313 TI - [A case report of idiopathic hypereosinophilic syndrome with pulmonary embolism]. PMID- 29325314 TI - [A case of lymphangiomatosis with initial gastrointestinal symptoms]. PMID- 29325315 TI - [Standardized diagnosis and treatment of pituitary prolactinoma: lesson from a case of pituitary adenoma with slightly elevated prolactin level]. PMID- 29325316 TI - [A topic about Takotsubo syndrome]. PMID- 29325317 TI - [An update on clinical research of argyrophilic grain disease]. PMID- 29325318 TI - [The role of sphingosine-1-phosphate and its receptors in autoimmune diseases]. PMID- 29325319 TI - [Application of half-dose spectral CT based on the automatic spectral imaging mode selection and adaptive statistical iterative reconstruction in the CT examination of upper abdomen in obese patients.] AB - Objective: To investigate the value of combined use of half-dose spectral CT based on the automatic spectral imaging mode selection (GSI Assist) and adaptive statistical iterative reconstruction (ASIR) in the CT examination of upper abdomen in obese patients as compared with conventional CT. Methods: Eight-two obese patients (body mass index>=29 kg/m(2)) were prospectively selected from October to December 2016, and contrast-enhanced CT during arterial phase (AP) and portal venous phase (PVP) were carried out in those patients.The patients were randomly assigned to the study group and control group with random number table (41 cases in each group). In the study group, half-dose spectral CT based on GSI Assist was applied and monochromatic images (40 to 70 keV, 10 keV as increment) were reconstructed using 50% ASIR (group A). In the control group, the fixed tube potential of 120 kVp was done with images reconstruction using 30% ASIR (group B). Quantitative parameters of radiation dose, CT value, contrast to noise ratio (CNR) and image noise were compared between the two groups by using two sample t test, while qualitative visual parameters (overall image quality as graded on a 5 point scale) were compared with Mann-Whitney U test. Results: There was significant difference in effective radiation dose between the two groups[(5.2+/ 0.8) vs (10.4+/-1.7) mSv, t=-17.822, P<0.001], and it was decreased for 50% in group A. During the arterial phase (AP) and portal venous phase (PVP), at the energy level of 40 keV and 50 keV, higher CT values, higher or similar CNRs, higher image noise and lower overall image quality scores were found in group A when compared with group B. At the energy level of 60 keV, group A had higher CT values, higher or similar CNRs, similar overall image quality scores with higher or similar image noise as compared with group B. At the energy level of 70 keV, the two groups had similar CT values, CNRs and image noise, and higher overall image quality scores were found in group A. Conclusions: In obese patients, combined use of half-dose spectral CT based on GSI Assist and ASIR can reduce effective radiation dose up to 50% when compared with conventional upper abdominal CT.Monochromatic images at 70 keV can maintain CNR and improve overall image quality. PMID- 29325320 TI - [Anatomy research of cervical laminoplasty with preservation of the posterior ligament complex.] AB - Objective: To evaluate the feasibility of cervical laminoplasty with preservation of the posterior ligament complex for enlarging the spinal canal. Methods: Six up to-standard human corpse specimens were divided into two groups by simple randomization (start from C4 group, S4; start from C5 group, S5; 3 corpses in each group). Decompression operation of C3-C6 level was performed in a predetermined sequence by using the new procedure with preservation of the posterior ligament complex.The basic depth of spinal canal was measured with a depth gauge at fixed point after the right bone groove of single level was completed.The operation of the contralateral bone groove was continued, and then the spinal canal was measured again when the spinous process was pulled backward by using a tissue forceps until the ligament complex was just tight.Retreat value (RV) of vertebral lamina was obtained by calculating the difference between the two measurements.The earlier measured levels needed to be remeasured when the operation area increased by one level. Two independent sample and one-sample t test were used to analyze the measurement results. Results: RV of vertebral lamina was small after finishing the first level of the decompression operation [S4: (0.87+/-0.72) mm; S5: (1.83+/-0.29) mm], and the value reached its maximum after the completion of C3-C6 level.The overall average RVmaxs from C3 to C6 level were (2.37+/-0.52) mm, (4.27+/-0.78) mm, (3.73+/-0.93) mm and (2.16+/-0.77) mm, respectively.The overall average retreat rates (RR) were 17%+/-7%, 32%+/-9%, 29%+/-10% and 16%+/-6%, respectively. The overall average RVmax of C4 and C5 level reached or exceeded the decompression threshold value of 4 mm (t=0.839, 0.703, both P>0.05). The average RVmax of C4/C5 level was similar in the two groups (t=-1.204, 1.189, both P>0.05); however, the difference of average RVmax between C3 and C6 level was significant (t=-4.429, 4.196, both P<0.05). Conclusions: Cervical laminoplasty with preservation of the posterior ligament complex can enlarge the sagittal diameter of spinal canal and relieve the compression of spinal cord.In addition, RV of each level increases as the number of the operation level increases, and the ability of vertebral lamina to retreat is quite different from C3 to C6 level.The decompression effect in the middle of the operation area is better than that on the cranial and tail side. PMID- 29325321 TI - [Preliminary applicability evaluation of Prostate Imaging Reporting and Data System version 2 diagnostic score in 3.0T multi-parameters magnetic resonance imaging combined with prostate specific antigen density for prostate cancer]. AB - Objective: To investigate the preliminary applicability of Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) score in the condition of 3.0T multi-parametric magnetic resonance imaging (Mp-MRI) combined with clinical classic indicators for the diagnosis of prostate cancer (PCa). Methods: The clinical and MRI materials of 247 patients of suspicious prostate disease treated in Second Affiliated Hospital of Soochow University from June 2015 to November 2016 were analyzed retrospectively, including 110 cases with PCa and 137 cases without cancer.All cases underwent the high-resolution axial T(2)-weighted imaging (T(2)WI), diffusion weighted imaging (DWI) and dynamic contrast enhancement-magnetic resonance imaging (DCE-MRI) and were confirmed pathologically by puncture biopsies.The Mp-MRI materials of all cases were scored according to PI-RADS v2.The prostate volume and prostate specific antigen (PSA) density (PSAD) value were calculated according to the formulas.The univariate and multivariate analysis were performed for the observed indicators (age, prostate volume, PSA, PSAD and PI-RADS v2 score) to determine the independent predictors for PCa.Then, a Logistic regression model (combined prediction model) was established by the independent predictors for combined diagnosis of PCa.The receiver operating characteristic curve (ROC) curve analysis was performed to get the sensitivity and specificity of each independent predictor and the model to diagnose PCa.The differences of AUC values of each independent predictor and the model were compared with each other to evaluate the diagnostic performance for PCa. Results: The differences in the age, prostate volume, PSA, PSAD and the PI RADS v2 score between patients with PCa and non-cancer group were all statistically significant (t=2.870, Z=-4.230, -7.787, -9.477, -10.826, all P<0.05). The PSAD and PI-RADS v2 score were independent predictors for PCa (OR=3.331, 10.546, both P<0.05). The Logistic regression combined prediction model by PI-RADS v2 score and PSAD to forecast PCa was Logit(P)=-5.097+ 2.309*PSAD+ 1.214*PI-RADS v2 score.The area under the curve (AUC) of ROC in the combined model (0.911) was higher than that in the PI-RADS v2 score (0.886) and PSAD (0.851) and the differences were all statistically significant (Z=2.416, 2.716, both P<0.05); but the difference in the AUC value between PI-RADS v2 score and PSAD was not statistically significant (Z=1.191, P=0.234). The diagnostic sensitivity of PSAD, PI-RADS v2 score and the model were: 0.891, 0.782 and 0.855, respectively; the specificity were 0.449, 0.912 and 0.847, respectively on their positive thresholds (0.15 MUg.L(-1).ml(-1,) 4 and -0.82). Conclusion: PI-RADS v2 score combined with PSAD in diagnosing PCa is superior to the single application of them and it can lead to high diagnostic sensitivity and specificity for PCa. PMID- 29325322 TI - [A retrospective study of tumor and fertility outcomes after fertility-sparing surgical treatment of patients with borderline ovarian tumors]. AB - Objective: To study tumors and fertility outcomes after fertility-sparing surgical treatment with borderline ovarian tumors (BOT). Methods: One hundred and nineteen patients with BOT enrolled from 3 hospitals between January 2004 and January 2017 were analysed retrospectively.The clinical data and follow-up results were obtained and analyzed. Results: Among the 119 BOT patients, 55 patients underwent fertility-sparing surgery.The median age was 43 years (interquartile range: 15-80 years). There were 103 patients (86.55%) in stage I, and 16 patients (13.45%) in stage II and above.The median follow up time was 68 months (range: 4-155). (1)Tumor outcomes: 13 patients recurred and 3 patients died.Progression free survival (PFS) and the overall survival rate had no significant difference between the two groups (85.45% vs 92.19% P=0.309, 96.4% vs 98.4% P=0.492). PFS was related to FIGO stage, invasive implantation and chemotherapy by univariate analysis (P<0.05). The multivariate Cox regression model analysis showed that FIGO stage and invasive implantation were independent prognostic factors for PFS (P<0.05). (2) Pregnancy outcomes: 28 patients had a planned for pregnancy in fertility-sparing group, with 13 (46.43%) of them were pregnancy. Conclusions: FIGO stage and invasive implantation were the important factors of prognosis.Fertility-sparing surgery is safe and feasible to preserve the fertility of young patients. PMID- 29325323 TI - [Platelet to lymphocyte ratio in peripheral blood and body mass index: novel independent prognostic factors in patients with melanoma]. AB - Objective: To investigate whether platelet to lymphocyte ratio (PLR) in peripheral blood and body mass index (BMI) can be independent prognostic factors in patients with melanoma. Methods: Clinical date of 140 patients with melanoma in the Affiliated Cancer Hospital of Zhengzhou University and Henan Cancer Hospital from January 1, 2010 to December 31, 2015 were analyzed retrospectively.Receiver operating characteristic (ROC) curve was performed the optimal cut-off value for PLR.The 140 patients were divided into high PLR group and low PLR group.According to "Guidelines for prevention and control of overweight and obesity in Chinese adults" , the patients were divided into high BMI group and low BMI group.The relationship between PLR, BMI with overall survival (OS), progression free survival (PFS) and disease free survival (DFS) were analyzed.The Kaplan-Meier method and Log rank test was used for univariate survival analysis and Cox proportional hazards regression model for multivariate analysis. Results: The optimal cut-off value of PLR determined by ROC curve was PLR=120.15, and BMI threshold was 24.Univariate survival analysis showed that PLR, BMI and clinical stage were the factors affecting the OS in patients (P<0.05). The median survival time (MST) was 21 months in the whole group and 17 months in the high PLR group, 34 months in the low PLR group, respectively; the MST in the high and low BMI group were 29 months and 13 months, respectively.The difference was statistically significant (P<0.05). The effects of PLR and BMI on PFS and DFS were not statistically significant.Cox multivariate analysis showed that PLR, BMI and clinical stage were independent prognostic factors of OS (P<0.05). And BMI was the only independent protective factor for OS, the risk of death decreased by 0.611 times, with each unit increased for BMI.Clinical subgroup analysis showed that PLR also was risk factor to the prognosis of patients with stage II, III, and IV (P<0.05). Conclusions: PLR is an independent prognostic risk factor for patients with melanoma, and BMI is an independent protective factor.PLR and BMI are important factors in prognostic evaluation of melanoma. PMID- 29325324 TI - [Obstetric outcome in pregnancy complained with pulmonary hypertension]. AB - Objective: To identify whether pregnancy outcomes vary by the severity of pulmonary hypertension. Methods: A retrospective study was conducted on 78 cases of pregnancies complained with pulmonary hypertension who delivered in the First Affiliated Hospital, Sun Yat-sen University from 2006 to 2016.The selected cases were divided into three groups according to severity of pulmonary hypertension: mild pulmonary hypertension group (mild PAH group) was defined as a mean pulmonary artery pressure 30-49 mmHg, moderate pulmonary hypertension (moderate PAH group) as mean pulmonary artery pressure 50-69 mmHg and severe pulmonary hypertension (severe PAH group) as mean pulmonary artery pressure 70 mmHg or greater.The clinical features, risk pregnant complication, maternal and neonatal outcomes were described between these three groups.Analysis of variance, Chi square test was used for statistical analysis. Results: The average age of mild, moderate and severe PAH group were (31+/-5) years old, (31+/-5) years old and (27+/-3) years old, respectively (P=0.050). The rate of natural fertilization (P=0.414), parity (P=0.527) and gestational age (P=0.165) were similar in these three groups. In 78 pregnancies with pulmonary hypertension, 64.9% of pregnancies in mild PAH group was NYHA I, 50.0% of moderate PAH group was NYHA II and 54.5% of severe PAH group was NYHA III(P<0.001). There was no significant difference in the incidence of gestational diabetes mellitus (GDM, P=0.589), preeclampsia (P=0.942), premature rupture of membrane (PROM, P=0.276), scarred uterus (P=0.493) and postpartum hemorrhage (P=0.424). The cesarean section rate was 84.2%, 90.0% and 63.6% in three groups (P=0.208). However, neuraxial anesthesia was performed in 82.5% of cases in mild PAH and 90.0% of cases in moderate PAH, while 27.3% of cases of severe PAH underwent neuraxial anesthesia (P<0.001). The fetal outcome was similar in there groups.But the rate of admission of NICU was significantly different in three groups (P=0.011). Conclusions: Maternal and neonatal outcomes was similar in different severity of pulmonary hypertension.But the severity of pulmonary hypertension affect the type of anesthesia.Close monitoring during pregnancy and timely termination of pregnancy can improve the outcome of pregnancy. PMID- 29325325 TI - [Expression of microRNA-155 in inflammatory bowel disease and its clinical significance]. AB - Objective: To explore the expression of microRNA-155 in colonic mucosa and peripheral blood in patients with inflammatory bowel disease(IBD), and to examine the clinical value and significance of microRNA-155 in the diagnosis of IBD. Methods: Quatitative reverse-transcription PCR was performed to detect the expression of microRNA-155 in 20 patients with Crohn disease(CD), 21 patients with ulcerative colitis (UC), 18 patients with IBD type unclassified(IBDU), 25 healthy people(control group), 12 patients with infection colitis and 19 patients with ischemia colitis.Receiver operating characteristic (ROC) curve was performed to analyze the clincal value of microRNA-155 in diagnosis of IBD. Results: The expression of microRNA-155 in colonic mucosa in CD, UC and IBDU group was significantly higher than that in control group(P<0.05). MicroRNA-155 expression was also significantly higher in UC group in comparison to CD group (35.4+/-3.0 vs 18.6+/-5.9, P<0.01), IBDU group in comparison to CD group (23.0+/-3.7 vs 18.6+/-5.9, P<0.05) and UC group in comparison to IBDU group (35.4+/-3.0 vs 23.0+/-3.7, P<0.01). The plasma level of microRNA-155 in UC group (55.6+/-2.5) and IBDU group (48.1+/-6.2) was significantly higher than that in control group(P<0.05), while no significant difference in CD group was observed when compared with control group(P>0.05). ROC curve shows an AUC of 0.83 and 95%CI of 0.679-0.986 of microRNA-155 expression in colonic mucosa.The sensitivity and specificity of microRNA-155 expression in colonic mucosa in diagnosis of IBD was 68.4% and 78.6%, respectively. Conclusions: MicroRNA-155 showed high expression in colonic mucosa and peripheral blood in patients with IBD.MicroRNA-155 shows promise as a biomarker in diagnosis of IBD.Furthermore, the aberrant expression indicates that microRNA-155 may be involved in pathogenesis and progression of IBD. PMID- 29325326 TI - [Investigation of colistin resistance gene mcr in gut bacteria from patients with acute diarrheal]. AB - Objective: To investigate the presence of colistin resistance gene mcr in gut bacteria from patients with acute diarrhea. Methods: Fresh stool samples were collected from 150 outpatients with acute diarrhea in the intestinal clinic of Henan Provincial People's Hospital, and were directly detected for the presence of mcr by PCR after enrichment in the broth.The mcr-producing bacteria were further isolated and identified by MALDI-TOF MS (Bruker Biotyper). Antimicrobial susceptibility of these isolates was conducted by micro-broth dilution method.The presence of other antimicrobial genes were investigated by PCR and sequencing. Results: Among the 150 cases of acute diarrhea, 4 patients(2.7%) were positive for mcr-1 gene, and only 1(0.7%) contained both mcr-1 and mcr-3.Four isolates of Escherichia coli and one isolate of Aeromonas veronii were obtained from the mcr positive cases.The presence of mcr-1 gene was found in all of the E. coli isolates, and the mcr-3 gene was identified in A. veronii. Conclusions: Our study demonstrated the relatively low prevalence of colistin resistant gene in the faeces of acute diarrhea outpatients, and mcr-1 is the dominant colistin resistant gene.The presence of mcr-3 gene was also found in the clinical sample, and it indicats the coexistence of mcr-1 and mcr-3 in the intestinal tract of diarrhea patient.We should pay attention to the potential transmission of these resistance genes and further investigations are urgently needed. PMID- 29325327 TI - [Resting-state network evaluation of chronic smokers by functional magnetic resonance imaging.] AB - Objective: To explore the neuromechanism of nicotine smoking, we use independent component analysis (ICA) of resting-state functional magnetic resonance imaging (fMRI) to investigate the differences of functional connectivity of resting-state networks (RSN) in chronic smokers. Methods: Forty-five chronic smokers and thirty four age and gender matched normal nonsmoking controls experienced resting-state fMRI scanning in 3.0T MRI scanner.Differences of the function connection in each RSN between chronic smokers group and nonsmoking controls group were analyzed by SPM software which was based on Matlab platform. Results: Compared with normal nonsmoking controls, changes of functional connectivity within each RSN in chronic smokers: (1) medial visual network: functional connectivity decreased in right cuneus (t=4.17, P<0.05) and left calcarine (t=3.08, P<0.05); (2) lateral visual network: decreased in left gyrus occipital superior (t=3.42, P<0.05); (3) occipital pole visual network: decreased in right gyrus occipital medius and left gyrus occipital medius (t=3.58, P<0.05); (4) dorsal attention network (DAN): increased in right gyrus occipital superior (t=3.42, P<0.05); (5) left frontoparietal network: decreased in left inferior parietal lobe (t=3.77, P<0.05); (6) right frontoparietal network: increased in right gyrus frontalis medius (t=3.42, P<0.05). Conclusion: There are some RSNs changes of chronic smokers compared with normal nonsmoking controls, with multiple brain regions functional connectivity abnormalities. PMID- 29325328 TI - [Value of split hand in the differential diagnosis of amyotrophic lateral sclerosis and cervical spondylotic amyotrophy]. AB - Objective: To investigate the value of split hand in the differential diagnosis of amyotrophic lateral sclerosis(ALS) and cervical spondylotic amyotrophy (CSA). Methods: A total of 62 ALS patients, 57 CSA patients and 65 normal controls who visited the Neurology and Spine Department of Beijing Jishuitan Hospital from May 2013 to June 2017 were enrolled into this study.The amplitudes of compound muscle action potentials (CMAP) were recorded from abductor digiti minimi (ADM) and abductor pollicis brevis (APB). Moreover, the ratio of CMAP amplitude between ADM and APB (ADM/APB) was calculated. Results: The ADM/APB of the ALS group (1.93+/ 1.97)was significantly higher than that of the normal control group (0.92+/ 0.22)(P<0.05); the ADM/APB of the CSA group (0.74+/-0.32)was significantly lower than that of the normal control group (0.92+/-0.22)(P<0.05); the ADM/APB of the ALS group (1.93+/-1.97)was significantly higher than that of the CSA group(0.74+/ 0.32)(P<0.05); the areas under receiver operator characteristic curve in patients with ALS was 0.843, the diagnostic sensitivity and specificity for ALS were 75.8% and 83.1% with the cutoff value of ADM/APB=1.077; the areas under receiver operator characteristic curve in patients with CSA was 0.737, the diagnostic sensitivity and specificity for CSA were 64.9% and 87.1% with the cutoff value of ADM/APB=0.739. Conclusion: The ADM/APB has certain clinical value for the differentiation of ALS and CSA. PMID- 29325329 TI - [Feasibility of using blood oxygen level-dependent magnetic resonance imaging to evaluate renal fibrosis of ureteral obstruction of rabbits]. AB - Objective: To investigate the feasibility of blood oxygen level-dependent MR (MR BOLD) in assessing renal fibrosis of ureteral obstruction of rabbits. Methods: Forty healthy New Zealand rabbits were randomly divided into control group (n=8) and unilateral ureteral obstruction (UUO) group (n=32). The rabbits in the UUO group were subjected to unilateral ureteral obstruction of the left kidney.Coronal T(2) weighted imaging (T(2)WI) and axial BOLD examinations were performed before operation, 2, 4, 6 and 8 W after operation (each subgroup n=8). After the examinations, nephrectomy was performed for histologic evaluation.The T(2)(*) relaxation rate of the renal cortex (CR(2)(*)) , medulla (MR(2)(*)) and the same level of muscle(R(2)(*)(muscle)) were measured separately.The normalization of the cortex and medulla (sR(2)(*)), and the difference of sR(2)(*) between renal cortex and medulla before and post UUO (DeltasR(2)(*)) were calculated.The differences of sR(2)(*) (sCR(2)(*), sMR(2)(*), sCR(2)(*)(control), sMR(2)(*)(control)) at each time point between control and UUO group were compared by using independent sample t test.The LSD test was used to compare the sR(2)(*) in the control with that in the UUO group.The DeltasCR(2)(*) and DeltasMR(2)(*) values of the subgroups at UUO 2, 4, 6 and 8 W were compared by independent sample t test. Results: The sR(2)(*) values of UUO group were all lower than those of control group (all P<0.05), while sR(2)(*)(control) and sR(2)(*) in UUO group before operation were not significant different (P>0.05). The sCR(2)(*) values of UUO 2, 4, 6 and 8 W were 0.32+/-0.01, 0.37+/-0.01, 0.47+/-0.02 and 0.50+/-0.03.The sMR(2)(*) values were 0.39+/-0.02, 0.48+/-0.02, 0.58+/-0.04 and 0.65+/-0.05.There were significant differences of sCR(2)(*)(between) UUO 2 W and 6 W, UUO 2 W and 8 W, UUO 4 W and 6 W, UUO 4 W and 8 W (all P<0.01). There were significant differences of sMR(2)(*)(between) UUO 2 W and 6 W, UUO 2 W and 8 W, UUO 4 W and 8 W (all P<0.01). No significant difference was founded between sCR(2)(*) and sMR(2)(*) at each time point in control group (P>0.05). The DeltasCR(2)(*) values of UUO 2, 4, 6 and 8 W were 0.31+/-0.02, 0.20+/-0.02, 0.14+/-0.20, 0.09+/-0.04; the DeltasMR(2)(*) values were 0.51+/-0.05, 0.36+/-0.04, 0.28+/-0.05, 0.19+/-0.05. The DeltasCR(2)(*) values of UUO 2, 4 and 6 W were less than DeltasMR(2)(*) (P<0.05). There was no significant difference between DeltasCR(2)(*) and DeltasMR(2)(*) in UUO 8 W (P>0.05). Conclusions: The R(2)(*) change in medulla resulted from renal fibrosis is more significant than cortex.MR-BOLD can reflect the process of renal fibrosis.It's feasible and of great value to use renal MR-BOLD for the assessment of renal fibrosis induced by unilateral ureteral obstruction. PMID- 29325331 TI - [Pay attention to standardinzing classification fo spinal neural tube defects]. PMID- 29325330 TI - [Effects of repetitive transcranial magnetic stimulation on upper limb motor function in patients with stroke: a meta analysis]. AB - Objective: To perform a meta analysis of studies that investigated the effects of repetitive transcranial magnetic stimulation (rTMS) on upper limb motor function in patients with stroke. Methods: We searched for related articles published before October 2015 in MEDLINE(Pubmed) (January 1966 to October 2015), Cochrane Central Register of Controlled Trials (CENTRAL) (October 2015), EMBASE(SCOPUS) (January 1974 to October 2015), Chinese Biomedical Database (CBMDisc) (January 1978 to October 2015), China National Knowledge Infrastructure (CNKI) (January 1979 to October 2015) and Wanfang database(January 1989 to October 2015). Results: A total of nine studies with 289 patients were included in this analysis.The results showed that rTMS had a significant effect for ischemic stroke patients with upper limb motor disorder with SMD 0.43, 95%CI 0.19-0.67, P=0.000 4. Further subgroup analyses about high or low frequency rTMS demonstrated low frequency rTMS showed prominent effects for the stroke patients with SMD 0.50, 95%CI 0.14-0.85, P=0.007.Only 3 patients from the 9 studies included in this analysis reported adverse effects from rTMS. Conclusions: The meta analysis suggests that rTMS has a positive effect on motor recovery in patients with stroke, especially the low frequency rTMS may be more beneficial.The clinical application of rTMS in patients with stroke is relatively safe.Intermittent theta-burst stimulation might be a useful intervention. PMID- 29325332 TI - [Gender differences of REM related obstructive sleep apnea-hypopnea syndrome]. AB - Objective: To explore the gender differences of rapid-eye-movement (REM) related obstructive sleep apnea-hypopnea syndrome (OSAHS). Methods: Consecutive patients with primary complaint of snoring from Sleep Medicine Center of West China Hospital between January 2016 and November 2016 were included in the study. All participants underwent one night polysomnography (PSG) and Epworth sleep scale (ESS) was estimated. The patients diagnosed with OSAHS were classified as REM related OSAHS (REM-OSAHS group) and non-rapid-eye-movement (NREM) related OSAHS (NREM-OSAHS group) based on the PSG parameters. And the gender differences of demographic and polysomnograpic characteristics in both groups were compared. The associations between apnea-hypopnea index (AHI) and body mass index (BMI), neck circumference and waist circumference among patients with OSAHS were explored by multiple linear regression analysis. Results: A total of 1 258 patients were diagnosed with OSAHS. There were 997 (79.3%) male and 261 (20.7%) female among these patients, the mean age was (46.4+/-12.0) years old and mean BMI was (26.6+/ 3.4) kg/m(2). There were 236 patients (18.8%) classified into REM-OSAHS group, and 1 022 patients (81.2%) classified into NREM-OSAHS group; the proportion of REM-OSAHS in female was significantly higher than that in male (34.1% vs 14.7%, P<0.001). After controlling for age, drinking, smoking, hypnotics, coffee, strong tea and sleep related parameters, in NREM-OSAHS group, AHI was positively correlated with BMI, neck circumference and waist circumference (P<0.001) both in male and female. In REM-OSAHS group, AHI was positively correlated with BMI, neck circumference and waist circumference in female (P<0.05), but only significantly correlated with BMI and waist circumference in male (P<0.05). Conclusions: REM OSAHS is commonly seen in female OSAHS patients. Evaluation of the influences of anthropometric data on the severity of REM-OSAHS should consider the impact of gender. PMID- 29325333 TI - [Biomechanical effects on adjacent segments of different growing-rod fixation in early onset scoliosis]. AB - Objective: To analyse the biomechanical effects on adjacent segments of different growing-rod (GR) fixation in early onset scoliosis through a finite element analysis method. Methods: A severe early-onset scoliosis patient was selected and the pre-operation and post-GR-operation (Upper instrumented levels: T(4), T(5). Lower instrumented levels: L(3), L(4)) whole spine 3-dimentional CT scan data were collected to build the finite models. Based on the different models, biomechanical differences on adjacent segments were analysed. Results: The stress on the adjacent structures decreased after the GR surgery compared with the pre operation. Compared with the single GR, stress on T(3) vertebrae decreased by 6.2%, stress on T(3/4) disc decreased by 6.7%, stress on T(3/4) ligament decreased by 27.7%, stress on T(6) vertebrae decreased by 16.9%, stress on T(5/6) disc decreased by 1.2%, stress on T(5/6) ligament decreased by 40.4%, stress on L(2) vertebrae decreased by 32.6%, stress on L(2/3) disc decreased by 30%, stress on L(2/3) ligament decreased by 15.6%, stress on L(5) vertebrae decreased by 1.2%, stress on L(4/5) disc decreased by 15.7%, stress on L(4/5) ligament decreased by 100.0% in dual GR structure. The application of hook (s) on the upper instrumented vertebrae (s) decreased the stress on the cranial adjacent segment. Stress on T(3) vertebrae decreased by 2.8% and 2.2%, stress on T(3/4) disc decreased by 2.4% and 1.5%, stress on T(3/4) ligament decreased by 3.6% and 5.7% in single GR and dual GR models separately when the hook (s) were utilized. In the meanwhile, the stress on the adjacent segment was more concentrated in the single GR model. Conclusion: Dual-rod growing-rod and the application of hook (s) on the upper instrumented vertebrae could reduce the stress on the adjacent segments more effectively in patients with early onset scoliosis. PMID- 29325334 TI - [Analysis on the novel compound heterozygous mutation FXI of a patient with hereditary factor XI deficiency]. AB - Objective: To investigate the clinical phenotype and genotype characteristics of a Chinese hereditary factor XI deficiency pedigree. Methods: The activated partial thromboplastin time (APTT), prothrombin time (PT), FXI activity (FXI: C) were measured by clotting method using automatic coagulation analyzer. The FXI antigen (FXI: Ag) was assayed by enzyme-linked immunosorbent assay (ELISA). Fifteen exons of F11 from the proband and his pedigree members were amplified by polymerase chain reaction (PCR), then sequenced. Pymol software was used to analyze the novel mutations. Results: APTT, FXI: C and FXI: Ag of proband was 74.2 s, 4.0% and 2.9%, respectively. For his older sister, APTT, FXI: C and FXI: Ag was 67.1 s, 3.0% and 1.8%, respectively. APTT, FXI: C and FXI: Ag of healthy controls were 34.5 s, 100.0% and 100.0%. FXI: C of proband's father, mother and brother were 72.0%, 62.0%, and 78.0%, respectively. FXI: Ag of them were 50.0%, 43.0%, and 51.8%, respectively. The other coagulant parameters of the proband and his pedigree were all in the normal range. Sequence analysis showed two heterozygous gene mutations in F11 of the proband and his older sister. One was a deletion of T at nucleotide 1 491 in exon 12, resulting in a frameshift. A substitution of leucine 465 by tryptophan and a terminal coden after 7 amino acid: F11NM_13142c.1491delT (p.Leu465Trp.fs*7). The other was a G to A substitution at nucleotide 1 815 in exon 15, resulting in a substitution of glycine 573 by aspartic acid: F11 NM_13142c.1815G>A (p.Gly573Asp). F11NM_13142c.1491delT (p.Leu465Trp.fs*7) heterozygotes were found both in the proband's father and his brother while p. Gly573Asp heterozygote was only found in his mother. F11 of the proband's uncle was wild. Conclusion: The novel compound heterozygous mutations of F11NM_13142c.1491delT (p.Leu465Trp.fs*7) and F11 NM_13142 c. 1815G>A (p.Gly573Asp) are responsible for FXI deficiency to the proband, which induced the decrease of FXI: C and FXI: Ag. PMID- 29325335 TI - [Association between serum adipocyte fatty acid binding protein level and insulin resistance in patients with OSAS]. AB - Objective: To investigate the association between serum adipocyte fatty acid binding protein (A-FABP) level and insulin resistance in patients with obstructive sleep apnea syndromes (OSAS). Methods: Eighty patients with snoring were monitored by overnight polysomnography (PSG) from September 2015 to July 2017, and there were 59 males and 21 females, aged from 22 to 77 years old (mean age 47+/-14 years old). Based on the apnea-hypopnea index (AHI), these patients were divided into three groups: primary snoring group (AHI<5/h, n=19), mild moderate OSAS groups (5/h<=AHI<=30/h, n=23) and severe OSAS groups (AHI>30/h, n=38). The levels of A-FABP, the fasting plasma glucose (FPG), fasting insulin (FINS) and insulin resistance index (IRI) were compared between the primary snoring group and OSAS patients with different severities, and the correlations between serum A-FABP and IRI as well as PSG parameters were further evaluated using partial correlation analysis. Results: Compared with the primary snoring group [(15.6+/-3.5) MUg/L] and mild-moderate group [(17.4+/-4.3) MUg/L], there was a significant increase of the serum A-FABP level in the severe OSAS group [(21.4+/-4.6) MUg/L](P=0.001, P=0.025). Additionally, after adjustment for BMI and age, serum A-FABP level showed significant positive correlations with FINS and IRI (r=0.478, P<0.001; r=0.356, P=0.035); serum A-FABP level was positively correlated with AHI and the arterial oxygen saturation (SaO(2)) < 90% time ratio in night (TS90%) (r=0.251, P=0.041 and r=0.271, P=0.035). Nevertheless, serum A FABP level showed significant negative correlation with the lowest SaO(2) and the mean SaO(2) (r=-0.244, P=0.038 and r=-0.280, P=0.018). Conclusion: Insulin resistance and the increased level of serum A-FABP are common in OSAS patients, the level of serum A-FABP is significantly correlated with insulin resistance and nocturnal intermittent hypoxia, both of which suggest that A-FABP plays a potential role in insulin resistance in patients with OSAS. PMID- 29325336 TI - [Dose-response relationship of ropivacaine for epidural block in early herpes zoster guided by CT]. AB - Objective: To determine the dose-response relationship of ropivacaine for epidural block in early herpes zoster by CT guided. Methods: From January 2015 to February 2017, according to the principle of completely random digital table, 80 patients with early herpes zoster who were prepared for epidural block were divided into 4 groups(each group 20 patients): in group A the concentration of ropivacaine was 0.08%, in group B was 0.10%, in group C was 0.12% and in group D was 0.14%.Under CT guidance, epidural puncture was performed in the relevant section, mixing liquid 5.0 ml (with 10% iodohydrin)were injected into epidural gap.CT scan showed that the mixing liquid covered the relevant spinal nerve segmental.The numeric rating scale(NRS) values before treatment and at 30 minutes, the incidence of adverse reactions were recorded, and the treatment were evaluated. The response to ropivacaine for epidural block in early herpes zoster was defined as positive when the NRS values was less than or equal to one.The ED(50), ED(95) and 95% confidence interval (CI) of ropivacaine for epidural block in early herpes zoster guided by CT were calculated by probit analysis. Results: The NRS values before treatment were 5.00(4.00, 6.00), 5.00(4.25, 6.00), 5.50(5.00, 6.00) and 5.00(4.00, 6.00), the difference was no significant(Z=2.576, P=0.462). The NRS values at 30 minutes decreased and the effective rate of the treatment increased(chi(2)=8.371, P=0.004), following ropivacaine dose gradient increasing, they were 1.50(1.00, 2.00), 1.00(1.00, 2.00), 0.50(0.00, 1.00) and 0.00(0.00, 1.00), the difference was statistically significant (Z=17.421, P=0.001). There was one case in group C and four cases in group D were hypoesthesia, others were no significant adverse reactions occurred. The ED(50) and ED(95) (95%CI) of ropivacaine for epidural block in early herpes zoster guided by CT were 0.078%(0.015%-0.095%)and 0.157%(0.133%-0.271%), respectively. Conclusion: Ropivacaine for epidural block in early herpes zoster guided by CT is effective for neuropathic pain, with no significant adverse reactions. PMID- 29325337 TI - [The application of combining low dose naloxone with ropivacaine in supraclavicular brachial plexus block]. AB - Objective: To observe the effect of low dose naloxone combinewith ropivacaine for supraclavicular brachial plexus block. Methods: Seventy patients undergoing elective upper limb surgery were randomly divided into two groups, ropivacaine group (Group R, n=35) and naloxone group (Group N, n=35). An ultrasound guided technique was used in both two groups.The onset and duration time of sensory and motor blockade, visual analog score(VAS)of 3, 6, 12, 18, 24 h postoperatively, time of first request fordezocine, total amount of dezocine needed, incidence of nausea and vomiting postoperatively(PONV) and patients' satisfaction score for analgesia in 24 h after surgery were measured.At the same time, blood samples were taken before anesthesia, 6 h, 24 h after operation for inspecting the concentration of beta-endorphin(beta-EP)in plasma. Results: The duration of sensory and motor blockade, time of first request for dezocine in Group N were 736.0(713.5, 836.5), 514.5(491.3, 572.8), 708.5(683.2, 877.0)min, which were all prolonged compared to Group R(522.0(469.5, 606.5), 401.0(370.0, 458.5), 570.0(435.0, 618.5)min)(Z=-6.844, -6.758, -6.700, all P<0.01). The 6, 12, 18 h postoperatively VAS of Group N were 0, 5.0(3.0, 5.8), 5.0(5.0, 6.0)point. Among which the 6, 12 h postoperatively VAS of Group N were lower than that of Group R(1.0(1.0, 3.5), 6.0(6.0, 7.0)point)(Z=-6.596, -4.864, all P<0.01), while the 18 h postoperatively VAS was higher than that of Group R (5.0(4.0, 5.0)point)(Z= 2.603, P<0.01). Total amount of dezocine needed in Group N in 24 h after surgery was 7.5(5.0, 10.0)mg, which was lower than that of Group R(10.0(10.0, 15.0)mg)(Z= 3.449, P<0.01). The incidence of PONV after surgery in Group N was 21.9%, which was lower than that of Group R(45.5%)(chi(2)=4.034, P<0.05). Ptients' satisfaction score for analgesia in 24 h after surgery in Group N was 8.0(7.0, 8.0)point, which was higher than that of Group R(7.0(6.0, 7.0)point)(Z=-3.509, P<0.01). At 6 h postoperatively , the concentration of plasma beta-EP in Group N was(113.34+/-12.36)MUg/L, lower than that of Group R((147.14+/-11.65)MUg/L)(t= 7.694, P<0.01). Conclusion: Low dose naloxone combine with ropivacaine for supraclavicular brachial plexus block, prolong the duration of sensory and motor blockade without affecting the onset time. PMID- 29325338 TI - [Supplementation with high-dose L-carnitine on hemodialysis tolerance in uremic patients with severe heart diseases]. AB - Objective: To investigate the effect of intravenous supplementation with high dose L-carnitinen on hemodialysis tolerance in uremic patients with severe heart disease (ischemic heart disease, congestive heart disease and arrhythmia). Methods: Between March 2012 and March 2017, 5 gram L-carnitine was given after the completion of each hemodialysis treatment (3-4 times a week) over a period of two weeks in 29 maintenance hemodialysis patients with severe heart diseases manifested by frequently symptomatic hypotension, chest tightness, wheezing, palpitation, chest pain and other symptoms during hemodialysis. The hemodialysis duration, heart functional classification (New York Heart Association Functional Classification, NYHA ), blood pressure and arrhythmia were analyzed before and after the treatment. Results: The duration of hemodialysis was significantly prolonged after treatment [from 2.0-3.5 (2.6+/-0.4)h to 3.0-4.0 (3.8+/-0.4) h, t=10.66, P<0.01]. Cardiac function was improved (Z=-4.74, P<0.01). The hypotension and arrhythmia during dialysis was improved. Conclusion: High-dose of intravenous L-carnitine supplementation can improve hemodialysis tolerance and the symptoms of heart failure, arrhythmia, ischemic cardiac disease in hemodialysis patients with severe heart diseases. PMID- 29325339 TI - [Risk factors and impacts on prognosis of ultrasound lung comets in patients undergoing hemodialysis]. AB - Objective: To investigate the risk factors of ultrasound lung comets and its impact on the survivals of patients undergoing hemodialysis. Methods: One hundred and forty-two patients on hemodialysis (Male 76, female 66) were divided into three groups according to the score of lung comets (mild: <=14 comets; moderate: 15 to 30 comets; severe: >30 comets). Seventy-two healthy subjects examined by lung ultrasound serve as a control. Pulmonary artery systolic pressure and left ventricular ejection fraction (LVEF) were assessed by Doppler ultrasonography. High-sensitivity C-reactive protein (hsCRP) and tumor necrosis factor (TNF)-alpha were measured by the automatic analyzer and enzyme-linked immunosorbent assay. Results: With the increasing age of the patients, lung comets scores increased (P<0.05). There were significant differences in TNF-alpha (P<0.05), interdialytic weight gain (IDWG) (P<0.05), pulmonary artery systolic pressure and LVEF (P<0.05) among three groups. In multivariate linear regression, the lung comets score was positively related to multiple clinical variables including New York Heart Association (NYHA) classification (P=0.023), hsCRP (P=0.042), TNF-alpha (P<0.001), IDWG (P=0.031), and pulmonary artery systolic pressure (P<0.001). In the multivariate Cox proportional hazards models, lung comets score was independent risk factor for death (P=0.001). In Kaplan-Meier survival analysis, the risk of all-cause mortality increased in parallel with lung comets score, and patients with lung comets score (>30 comets) were at highest risk of death among all three groups (log-rank test chi(2)=12.73, P=0.001). Conclusion: Lung comets is associated with inflammation, pulmonary artery systolic pressure/volume overload and heart function. Lung comets score represents the alterations of heart function and it may serve as a powerful predictor of all-cause mortality for hemodialysis patients. PMID- 29325340 TI - [Association between small dense low-density lipoprotein cholesterol and carotid atherosclerosis]. AB - Objective: To explore the association between small dense low-density lipoprotein cholesterol (sdLDL-C) and carotid atherosclerosis. Methods: 1 578 subjects were enrolled in an annual health check-up program in aerospace center hospital from 2016 to 2017, and these patients were divided into 471 cases (men 343 and women 128) with carotid atherosclerosis (subjects with increased carotid artery intima media thickness or carotid atherosclerosis plaque) and 1 107 cases (men 567 and women 540) with non- carotid atherosclerosis according to ultrasonography. Serum sdLDL-C levels were measured by peroxidase assay. Results: Serum sdLDL-C was significantly higher in carotid atherosclerosis group (1.11+/-0.44) mmol/L than that in non-carotid group (0.88+/-0.40) mmol/L, with significant difference (t=9.856, P<0.001). Stratified by quartiles of sdLDL-C (Q1-Q4), the prevalence of carotid atherosclerosis was significantly increased trend along with increased sdLDL-C levels (P<0.001). In multivariate Logistic regression analysis, after adjustment for age, sex and other traditional atherosclerosis risk factors, comparing Q4 with Q1, the odd ratio of prevalence of carotid atherosclerosis was 5.164, and 95% confidence interval(CI) was 2.833-9.413. While the sdLDL-C threshold was 0.727 mmol/L as the optimal cut-off point, the clinical sensitivity and specificity of sdLDL-C for screening carotid atherosclerosis were 80.5% and 41.4%, respectively. Conclusion: Serum sdLDL-C was an independent risk factor of carotid atherosclerosis. sdLDL-C may be a potentially useful risk marker in early screening for carotid atherosclerosis. PMID- 29325341 TI - [Morphological characteristics and phenotypic analysis of multiple morphological abnormalities in sperm flagella]. AB - Objective: To analyze the sperm morphological characteristics of multiple morphological abnormalities of the sperm flagella (MMAF), and to analyze their common features and subtypes. Methods: Twenty-eight patients with abnormal morphology of flagella were analyzed by semen analysis. The morphological characteristics were analyzed by scanning electron microscopy and transmission electron microscopy. Histological observation of one case of testicular tissue was performed. Results: Of the 28 patients, only 13 patients (46.4%) had motile spermatozoa, 12 of which had a sperm motility rate of <10% and a sperm survival rate of 9.0%-80.0%. Under light and scanning electron microscope, sperm with absent, short, coiled, bent and irregular width flagella or their combinations were observed. Transmission electron microscopy showed structural abnormalities of sperm fibrous sheath, mitochondrial sheath. Loss rate of central microtubule was 41.4%-84.6%. The semen of the 2 patients with the absence or presence of the kinetic protein arm and both the inner and lateral motilin arms missing had no motile spermatozoa. There was no statistically significant difference in the proportion of flagellar malformations between the two groups of patients (without motile sperm vs with motile spermatozoa). Conclusion: MMAF is a kind of sperm flagella specific abnormalities. Initially diagnosis can be carried out using light microscopy. Clear diagnosis could be conduct using transmission electron microscopy, and the central microtubule loss of the sperm could be seen as the main feature of the flagella abnormalities. Through the morphological analysis and research, MMAF could be precisely classified, which provide a strong basis for the diagnosis. PMID- 29325342 TI - [Computer Aided Diagnosis system of breast ultrasound based on support vector machine: a clinical analysis]. AB - Objective: To investigate the value of based on support vector machine (SVM) breast ultrasonography technology of Computer-Assisted diagnosis (CAD) for differential diagnosis of benign and malignant breast masses. Methods: Total of 143 patients who had 151 breast masses were collected in Fujian Maternity and Children Health Hospital or The Fist Affiliated Hospital of Fujian Medical University from June 2014 to December 2015. Based on pathological results as the gold standard, the diagnostic efficiency of CAD and ultrasonography were compared. Results: The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of ultrasonography were 80.1%, 71.0%, 76.8%, 80.0% and 72.1%, respectively. And the sensitivity, specificity, accuracy, positive predictive value and negative predictive value of CAD were 96.6%, 90.3%, 94.0%, 93.5% and 94.9%, respectively. The specificity, accuracy, positive predictive value and negative predictive of CAD technology were significantly higher than those of ultrasonography (P<0.05). The area under the receiver operator characteristic curve of ultrasonography and CAD were 0.759 and 0.935 respectively, with significant difference (P<0.05). Conclusions: CAD has a higher specificity and accuracy rate than ultrasonography in the diagnosis of breast masses. It could help to differentiate benign from malignant breast masses. PMID- 29325343 TI - [Expression and significance of autophagy in rabbit model of tracheal stenosis]. AB - Objective: To investigate the expression and significance of autophagy in rabbit model of tracheal stenosis. Methods: A total of 18 rabbits were equally divided into 3 groups (blank control group, saline group, erythromycin group) in accordance with the random number table. After rabbit model of tracheal stenosis was established, no treatment was done with blank control group. Saline group was atomized with saline (0.54 mg/kg, 2 times/day), and erythromycin group was fed on erythromycin (7.5 mg/kg, 2 times/day) for 7 days before and 10 days after the operation. On the eleventh day, rabbits were executed, and their trachea were collected. The proportion of collagen fiber area of tracheal lamina propria (LP) and epithelium (EP) was assessed by Masson staining. The mRNA of autophagy associated gene-3 (ATG3) and autophagy associated gene-5 (ATG5) of tracheal mucosa were assessed by Real-Time Polymerase Chain Reaction (RT-PCR). The protein of microtubule-associated protein 1 light chain beta(3) (LC3B), ATG3 and ATG5 were assessed by Western blot. Results: The proportion of collagen fiber area of tracheal LP and EP of blank control group was (6.79+/-0.67)%, saline group was (40.55+/-5.40)%, erythromycin group was (27.48+/-0.43)%. The differences between any two groups was all statistically significant (all P<0.01). The relative value of ATG3 mRNA and ATG5 mRNA in saline group were significantly lower than blank control group (all P<0.01). Those value in erythromycin group were significantly higher than the saline group (all P<0.01). The protein levels of LC3B-II/I, ATG3 and ATG5 in saline group were significantly lower than blank control group (all P<0.01). After low dose of erythromycin intervention, all the protein levels were significantly higher than the saline group (all P<0.01). Conclusions: The expression of autophagy is decreased in rabbit model of trachea stenosis. Low dose of erythromycin could increase the expression of autophagy and at the same time alleviate the degree of fibrosis of the tracheal mucosa. Autophagy may alleviate tracheal fibrosis through up-regulating its expression level and play a protective role. PMID- 29325344 TI - [Experimental observation of hyperbaric oxygen combined with radioactive seed implantation in the treatment of nude mice bearing esophageal squamous cell carcinoma]. AB - Objective: To investigate the effect and mechanism of hyperbaric oxygen combined with radioactive seed implantation in the treatment of esophageal squamous cell carcinoma. Methods: Subcutaneous tumor model of esophageal squamous cell carcinoma using TE-8 cells was established. Tumor bearing Balb/c(nu/nu) mice (60 mice) were divided into four groups, Cont group that treated with normal oxygen level, HBO group that treated with hyperbaric oxygen, RSI group that treated with radioactive seed implantation, and HBO+ RSI group that treated with hyperbaric oxygen combined with radioactive seed implantation. Tumor volume ratio and mean survival time of tumor bearing mice were observed. Pathological changes of tumor tissue after treatment were observed by hematoxylin eosin (HE) staining. Enzyme linked immunosorbent assay kit was used to detect oxidative stress. Apoptosis related proteins were detected by Western blot. Results: After treatment, the tumor volume ratio of HBO+ RSI group was 3.51+/-0.80 and was significantly lower than that of Cont group, HBO group, and RSI group (P<0.05). The mean survival time of HBO+ RSI group tumor bearing mice was 62 d and was significantly longer than that in Cont group, HBO group, and RSI group (P<0.05). HE staining showed that the pathological changes of tumor tissues were most obvious in HBO+ RSI group. After treatment, the MDA and Bax levels in nude mice of HBO+ RSI group were significantly higher than those in Cont group, HBO group and RSI group, but the levels of GSH, SOD and Bcl-2 were significantly lower than those of Cont group, HBO group and RSI group (P<0.05). Conclusion: Hyperbaric oxygen combined with radioactive seed implantation could slow tumor growth and increase survival time of tumor bearing mice. The possible mechanism is that hyperbaric oxygen combined with radioactive seed implantation can improve the oxidative stress response and the expression of apoptosis protein in tumor bearing nude mice. PMID- 29325345 TI - [Important issues need to be emphasized in the diagnosis and treatment of pancreatic cystic neoplasms]. AB - The patients of pancreatic cystic neoplasms diagnosed and treated are increasing over the past decade. Recent and long-tern risk and benefit should be well balanced when considering treatment, follow the principle of patient-benefit. For low malignancy potential neoplasm like serous cystic tumor or branch duct intraductal papillary mucinous neoplasm, surgical indication should be reserved to those with obvious malignant potential.Decreasing perioperative mortality and morbidity should be emphasized. Comprehensive studies are needed to validate the efficacy of new diagnostic and treatment technique before applied to clinical. Oncological outcome could not be compromised in order to achieve minimal invasive effects. PMID- 29325347 TI - [Opportunities and challenges in the development of pancreatic surgery]. AB - Pancreatic surgery is characteristic of various and complicated diseases and difficult surgeries. Pancreatic surgeons are required to grasp the new concept, apply new techniques and comprehend the study trends of pancreatic diseases. Otherwise, pancreatic surgeons should fully realize the opportunities and challenges resulted from application of new concept and techniques as well as learning new concept and techniques. Meanwhile, they should grasp the updating guidelines and research progress, intensively promote the development of prospective multicenter research involved in multidisciplinary team, and then promote the rapid development of pancreas surgery in China. PMID- 29325346 TI - [Evidence-based guideline for the management of acute subaxial cervical spine injury]. AB - In order to provide the clinical guidelines of acute subaxial cervical spine injury for the Chinese orthopedic surgeons, the Spine Trauma Group of Chinese Association of Orthopedic Surgeons compiled this guidelines.The guidelines apply to adult patients with acute (less than 3 weeks) subaxial cervical spine and/(or) spinal cord or nerve root injuries. The Study Group wrote the guidelines by setting up questions, determining search words, screening literatures according to inclusion and exclusion criteria, analyzing the included literatures, confirming evidence levels and then providing recommendations. The guidelines include 141 literatures, 27 Chinese articles and 114 English articles. The guidelines set up 18 questions divided into 4 sections: pre-hospital care, diagnosis and evaluation, treatment and prevention of complications, which include 39 recommendations. PMID- 29325348 TI - [Multidisciplinary team building in enhanced recovery after surgery]. AB - There has been 10 years to explore the road in line with China's actual enhanced recovery after surgery(ERAS) since Academician Li Jieshou introduced the view of ERAS into China. ERAS has been widely carried out in the field of surgery, and gradually formed with Chinese characteristics of ERAS clinical pathway.The clinical implementation of ERAS relies on the effective integration of a series of perioperative methods, and any single technique or method can't completely reduce the perioperative physiological and psychological traumatic stress of the patient, so as to achieve the patient's rapid rehabilitation patient-centered multidisciplinary team(MDT)collaboration is an inevitable trend in ERAS development. On the basis of drawing lessons from foreign experience, the establishment of ERAS-MDT model in line with China's national conditions is a new subject that needs to be studied at present. The construction of ERAS-MDT might promote the development of new ERAS services, new technologies, and ultimately promote the improvement of surgical treatment, and bring the greatest clinical benefit to the society and patients. PMID- 29325349 TI - [Introduction and interpretation of guidelines on thromboprophylaxis in the perioperative period of urological surgery]. AB - Venous thromboembolism had drawn great attention of global experts, as it is the third leading cause of cardiovascular-associated death, ranking after coronary heart disease and stroke. Numerous health care organizations had introduced guidelines for thromboprophylaxis during the perioperative period in their own fields. The paper reviewed the available guidelines pertaining to urological surgery from America Urological Association, American College of Chest Physicians and European Association of Urology. Compared with the first two guidelines, the European Association of Urology guideline is a milestone which recommended the most detailed prophylactic measures for the procedure-specific and patient specific according to the evidence-based medicine. Meanwhile, there was still no reliable evidence in fields of the effect of new oral anticoagulants in urology, needing further study. Although they were similar in patient management and prophylaxis principles, there are still some differences in risk factors, assessments, and recommendations of prophylactic measures. In this context, we planed to summarize the highlights and compare the differences of three guidelines addressing the use of thromboprophylaxis in urology, in order to provide reference for Chinese urologists to select the best prevention strategies for patients in the perioperative period. PMID- 29325350 TI - [The current status of diagnosis and treatment of pancreatic cystic neoplasm in China: a report of 2 251 cases]. AB - Objective: To analyze the current status of diagnosis and treatment of pancreatic cystic neoplasm(PCN)in China. Methods: Clinical data of 2 251 PCN patients who underwent surgical resection from January 2006 to December 2016 in 16 institutions was retrospectively analyzed.Excel database was created which covered 132 fields of 7 fields: general information of patients, imaging findings, preoperative blood biochemical indexes, tumor markers, surgical related data, postoperative complications and pathology. Results: Of the 2 251 patients, the male to female ratio was 1.0 to 2.4, and the mean age at diagnosis was 47.5 years(range, 8-89 years). Solid pseudo-papillary tumor(SPT), Serouscystic neoplasm(SCN), Intraductal papillary mucinous neoplasm(IPMN), mucinous cystic neoplasm(MCN) were 713 cases, 678 cases, 495 cases, 365 cases, respectively; and the malignant transformation rate was 12.3%, 0.6%, 32.1%, 10.4%, respectively. Carcinoembryonic antigen, CA19-9, CA125 were significantly increased in the malignant group.The incidence of postoperative complications in SCN was the highest.Preoperative CT scan was the most common method in China.The characteristics of IPMN included atrophy of pancreas body and tail, dilatation of the main pancreatic duct, and pancreatitis, and these characteristics were three to six times more than other 3 kinds of PCN.The correct rate of preoperative diagnosis to subtype was 33.0%. Conclusions: SPT is the most common tumor in all PCN in China.One of the key research directions is to improve the accuracy of subtype diagnosis to avoid unnecessary surgery. PMID- 29325351 TI - [Analysis of risk factors and outcomes for delayed gastric emptying following pancreaticoduodenectomy: a single center experience of 492 cases]. AB - Objective: To evaluate risk factors for delayed gastric emptying(DGE)following pancreaticoduodenectomy(PD). Methods: There were 492 consecutive patients who underwent PD in Pancreas Center, the First Affiliated Hospital with Nanjing Medical University between January 2012 and December 2014 were identified from a prospective database.There were 315 male and 177 female patients with a median age of 60.5 years.Univariate and multivariate analyses were performed to investigate the independent risk factors for clinically relevant DGE(CR-DGE). Results: The overall incidence of DGE was 29.5%, with Grade B and C occurring at 4.3% and 5.9%, respectively.In multivariate analysis, pancreatic duct diameter less than 3 mm(OR=1.888, P=0.042), pylorus-preserving pancreaticoduodenectomy(OR=2.627, P=0.005) and clinically relevant postoperative pancreatic fistula(OR=2.740, P=0.007) were independently associated with CR DGE.Other main complications such as postoperative pancreatic fistula, pyoperitoneum, intraabdominal infection were also associated with the severity of DGE(chi(2)=21.360, 14.422, 14.378; P=0.011, 0.002, 0.002). DGE patients had a significantly prolonged postoperative length of stay(31(24-41)d vs. 13(11-17)d) and increased medical cost((122 367.5+/-66 068.3)yuan vs. (78 200.7+/-27 043.9)yuan)(both P<0.01). Conclusions: Small pancreatic duct, underwent pylorus preserving pancreaticoduodenectomy and suffered postoperative pancreatic fistula might indicate a high risk of CR-DGE. PMID- 29325352 TI - [Clinical application of combined hepatic artery resection and reconstruction in surgical treatment for hilar cholangiocarcinoma]. AB - Objective: To clarify whether the surgical treatment for hilar cholangiocarcinoma combined with artery reconstruction is optimistic to the patients with hilar cholangiocarcinoma with hepatic artery invasion. Methods: There were 384 patients who received treatment in the First Affiliated Hospital to Army Medical University from January 2008 to January 2016 analyzed retrospectively. There were 27 patients underwent palliative operation, 245 patients underwent radical operation, radical resection account for 63.8%. Patients were divided into four groups according to different operation method: routine radical resection group(n=174), portal vein reconstruction group (n=47), hepatic artery reconstruction group (n=24), palliative group(n=27). General information of patients who underwent radical operation treatment was analyzed by chi-square test and analysis of variance. The period of operation time, blood loss, the length of hospital stay and hospitalization expenses of the radical operation patients were analyzed by one-way ANOVA. Comparison among groups was analyzed by LSD-t test. Results: The follow-up ended up in June first, 2016. Each of patients followed for 6 to 60 months, the median follow-up period was 24 months. 1-, 3-, and 5-year survival rates were 81.3%, 44.9% and 13.5% of routine radical operation group, and were 83.0%, 44.7% and 15.1% of portal vein reconstruction group, and were 70.8%, 27.7% and 6.9% of hepatic artery reconstruction group, respectively. And 1-, 3-, and 5-year survival rates of hepatic artery reconstruction group was lower than routine radical group and portal vein reconstruction group significantly (P<0.05). However, the rate of postoperative complications of the hepatic artery reconstruction group and the routine radical operation group and the portal vein reconstruction group were 62.5%(15/24), 55.3%(96/174) and 51.5%(24/47), respectively. There was no significant difference among them (P>0.05). The data shows that the ratio of lymphatic metastasis in hepatic artery reconstruction group (70.8%) is much higher than them in routine radical operation group (20.1%) and portal vein reconstruction group (19.1%) significantly (P<0.05). The presented data also indicate that hepatic artery resection prolongs survival time comparing with patients undergoing palliative therapy for hilar cholangiocarcinoma. Cox regression analysis indicate that hepatic artery resection and reconstruction is a protective factor compare with palliative therapy (RR=0.38, 95%CI: 0.22-0.67). The significant reason for shorter survival time is a positive correlation between hepatic artery invasion and lymph node metastasis. Conclusion: Hepatic artery resection and reconstruction has beneficial impact on oncologic long-term outcome in patients with advanced stage hilar cholangiocarcinoma. PMID- 29325353 TI - [Comparison of the short-term and long-term outcome between robotic gastrectomy and laparoscopic gastrectomy: a propensity score matching analysis]. AB - Objective: To compare the short-term and long-term outcome between robotic gastrectomy and laparoscopic gastrectomy. Methods: The clinical data of 517 patients who had received robotic gastectomy and laparoscopic gastrectomy between December 2011 and December 2013 at Department of General Surgery, Chinese People's Liberation Army General Hospital was collected. After propensity score matching, 70 patients in robotic gastectomy and 70 patients in laparoscopic gastectomy were identified. Perioperative outcome and overall survival were compared between the two groups using t test, chi(2) test, Kaplan-Meier curve and Log-rank test, respectively. Prognosis factors were analyzed by Cox's proportional hazards regression. Results: There were comparable baseline characteristics between patients in robotic group (RG) and those in laparoscopic group (LG). The conversion rate for RG and LG were 5.7% and 4.3% respectively (P=1.000). Compared with LG, RG had similar lymph node retrieval (25.5+/-7.2 vs. 24.5+/-8.3, t=0.770, P=0.443) and less blood loss ((147.0+/-96.8) ml vs. (188.0+/ 111.2) ml, t=-2.326, P=0.021). There were also similar complications (chi(2)=0.233, P=0.629) and severity of complications (W=70.500, P=0.053). Although there tended to be early mobility, early flatus and less hospital stay for patients in RG group, the difference between RG and LG was not statistically significant. The 3-year survival rate was 72.9% and 60.0% for patients in RG and patients in LG (P=0.578). Multivariable analysis revealed gender (HR=2.529, 95% CI: 1.042 to 6.140, P=0.040), neoadjuvant chemotherapy (HR=0.272, 95% CI: 0.104 to 0.710, P=0.008) and vascular invasion (HR=2.135, 95% CI: 1.027 to 4.438, P=0.042) were independent prognostic factors. Conclusion: Compared with laparoscopic gastrectomy, robotic gastectomy could achieve similar short-term and long-term outcomes. PMID- 29325354 TI - [Excision of giant desmoid in the abdominal wall, method of abdominal wall reconstruction, and follow-up of long-termed effect]. AB - Objective: To explore the ideal procedure of excision and repair for giant desmoid in the abdominal wall and long-termed follow-up results. Methods: Clinical and follow-up data of 24 patients with giant desmoid in the abdominal wall underwent radical removal and immediate abdominal wall reconstruction in Diagnostic and Therapeutic Center of Hernia and Abdominal Wall Diseases, First Affiliated Hospital of People's Liberation Army General Hospital from October 2006 to October 2016 were analyzed retrospectively. Twenty-one female patients with the mean age of 34.6 years and 3 male patients with the mean age of 42.6 years were recruited. The minimal diameter of these tumors was 15 cm, and the maximal diameter was from xiphoid bone to pubic symphysis. Results: All of desmoids were removed radically and proved by the rapid pathologic examination. The size of abdominal wall defect after desmoids removal were 483 (21 cm*23 cm) to 2 100 cm(2) (35 cm*60 cm), averaged 945 cm(2) (27 cm*35 cm). All of defects were repaired with compound synthetic prosthesis using bridging procedure. Twenty one patients were recovered smoothly and got primary wound healing. Three patients had prosthesis infected during 1 month postoperatively and 1 patient recovered with conservative therapy, the other 2 patients underwent infected prosthesis removal at 2 weeks and 3 months postoperatively, respectively. Twenty two patients were followed up with the period of 12 to 121 months and the median period was 63 months. No marginal neoplasm recurrence, incisional hernia, and abdominal wall bulge happened. Eight patients developped fresh desmoids in the abdominal cavity or in the back. Two patients died because of intestinal obstruction due to desmoid infiltration, and the other 6 patients still survived along with stable desmoids. Conclusions: Radical removal for patients with giant desmoid in the abdominal wall is an ideal therapeutic method, and compound synthetic patch can be used to repair huge abdominal wall defect, even the defect compromised all of abdominal wall. The long-termed follow-up results showed these procedures had not put bad influence on the quality of patients' life. PMID- 29325355 TI - [Comparison of prognosis between invasive micropapillary carcinoma and invasive ductal carcinoma of breast: a single center, retrospective case-control study]. AB - Objective: To elucidate the clinicopathological characters and prognostic factors of invasive micropapillary carcinoma of the breast (IMPC) by compared with invasive ductal carcinoma, not otherwise specified of the breast (IDC). Methods: The retrospective study was performed with female patients who had undergone curative resection for breast cancer without neoadjuvant chemotherapy from June 2008 to April 2016 in Breast Center of Beijing Hospital. Forty-seven mixed or pure IMPC patients and 93 pure IDC patients(admitted in the same center from October 2008 to January 2016 ) were matched for tumor stage, nodal status and age. Follow-up was done every 3 to 6 months postoperatively. The deadline was July 31, 2016. The curves of disease free survival and overall survival were drawn by the Kaplan-Meier method, and survival rates were compared by means of the Log-rank test. Potential prognostic variables that were identified on univariate analysis were analyzed with Cox's proportional hazards regression model for multivariate analysis. The chi(2) test or Fisher's exact test was used to compare distributions across 2 groups and the Mann-Whitney U test or t test was used to analyze the medians or means of 2 groups. Results: With exact matches, the rates of lymphovascular invasion (LVI) (29.8% vs. 12.9%, chi(2)=5.885, P=0.015)and histological grade 3 (40.4% vs. 21.5%, chi(2)=-2.690, P=0.007) were both significantly higher in patients with IMPC than that in IDC group, but the survival between the two pathological types were not significantly different (all P>0.05). The percent of IMPC component didn't influence the clinicopathologic characters (all P >0.05), but a significantly longer median disease free survival (chi(2)=11.731, P=0.001) when the patients had more than 50% of IMPC component was found. Conclusions: Higher rates of LVI and histological grade 3 were found in IMPC than that in IDC, but the survival was comparable between the two groups. A longer DFS occurred in patients with IMPC component more than 50%. PMID- 29325356 TI - [The role and significance of digital reconstruction technique in liver segments based on portal vein structure]. AB - Objective: To study the segment of liver according to the large amount of three dimensional(3D) reconstructive images of normal human livers and the vascular system, and to recognize the basic functional liver unit based on the anatomic features of the intrahepatic portal veins. Methods: The enhanced CT primitive DICOM files of 1 260 normal human livers from different age groups who treated from October 2013 to February 2017 provided by 16 hospitals were analyzed using the computer-aided surgery system.The 3D liver and liver vascular system were reconstructed, and the digital liver 3D model was established.The vascular morphology, anatomical features, and anatomical distributions of intrahepatic portal veins were statistically analyzed. Results: The digital liver model obtained from the 3D reconstruction of CAS displayed clear intrahepatic portal vein vessels of level four.Perform a digital liver segments study based on the analysis of level four vascular distribution areas.As the less anatomical variation of left hepatic portal vein, the liver was classified into four types of liver segmentation mainly based on right hepatic portal vein.Type A was similar to Couinaud or Cho's segmentation, containing 8 segments(537 cases, 42.62%). Type B contained 9 segments as there are three ramifications of right anterior portal vein(464 cases, 36.82%). The main difference for Type C was the variation of right-posterior portal vein which was sector shape(102 cases, 8.10%). Type D contained the cases with special portal vein variations, which needs three-dimensional simulation to design individualized liver resection plan(157 cases, 12.46%). These results showed that there was no significant difference in liver segmental typing between genders(chi(2)=2.179, P=0.536) and did not reveal any significant difference in liver segmental typing among the different age groups(chi(2)=0.357, P=0.949). Conclusions: The 3D digital liver model can demonstrate the true 3D anatomical structures, and its spatial vascular variations.The observation of anatomic features, distribution areas of intrahepatic portal veins and individualized liver segmentation achieved via digital medical 3D visualization technology is of great value for understand the complexity of liver anatomy and to guide the precise hepatectomy. PMID- 29325357 TI - [Impact of primary tumor site on the prognosis in different stage colorectal cancer patients after radical resection]. AB - Objective: To analyze the effect to the prognosis of tumor site on the patients of colorectal cancer after curative resection with different stage. Methods: Clinicopathological and follow-up data of 2 097 colorectal carcinoma cases undergoing resection at Fourth Hospital of Hebei Medical University from January 2008 to March 2015 were retrospectively analyzed. There were 421 patients in left sided colorectal cancer (LCC) group (including carcinoma in cecum, ascending colon , hepatic flexure, and transvers colon) , 386 in right-sided colorectal cancer (RCC) group (including carcinoma in splenic flexure, descending colon and sigmoid colon) and 1 290 in rectal cancer (RECC) group. Clinicopathologic features in patients with different tumor location were compared. 5-year overall survival rate were compared among the 3 groups. Patients were stratified by different stage to analyze the effect of tumor location on the prognosis. chi(2)test and Kruskal-Wallis rank-sum test were used to compare the clinicopathological features among the 3 groups, Kaplan-Meier curve and Log-rank test were used to analyze prognosis, respectively. Results: No significant differences were identified between the three groups in age, family history, N stage and intestinal obstruction. Significant difference were found in gender among LCC, RCC and RECC group (male were 62.5% vs. 54.9% vs.56.3%, chi(2)=6.040, P=0.049) . Compared with LCC group and RCC group, RECC group had more well and moderately differentiated adenocarcinoma patients (89.7% vs. 86.0% vs. 82.4%, chi(2)=10.712 and 17.385, P=0.013 and 0.001) , more stage I patients (17.1% vs. 6.9% vs. 6.5%, chi(2)=37.459 and 37.208, P=0.000 and 0.000) , and less likely to be stage T4 (44.7% vs. 76.7% vs.78.5%, chi(2)=128.015 and 133.704, P=0.000 and 0.000), metastasis (2.6% vs. 5.7% vs. 3.6%, chi(2)=1 417.167 and 1 424.217, P=0.000 and 0.000) and intestinal obstruction (11.3% vs. 21.1% vs. 24.4%, chi(2)=25.846 and 41.141, P=0.000 and 0.000). Five-year survival rate reduced in turn in the patients with RECC, LCC and RCC(70.9%, 59.8%, 58.9%, chi(2)=11.577, P=0.009). In the subgroup of stage III, patients with different tumor location had different overall survival (chi(2)=9.878, P=0.007). Compared to right-sided colon cancer patients, rectal ones had significantly better overall survival (chi(2)=9.271, P=0.002); but in the subgroup of stage I, II and stage IV, patients with different tumor location had similar overall survival (P were 0.124, 0.888, 0.263, respectively). Conclusions: Colorectal cancer patients with tumor location had different clinicopathologic features. Patients with rectal cancer had better five-year survival rate than those with left located and right located colon cancer. Tumor location had different effects on the prognosis according to the different TNM stage-subgroups. PMID- 29325359 TI - [New strategies for the diagnosis and treatemtn of hypertrophic cardiomyopathy]. PMID- 29325358 TI - [Correlation between of aortic dissection onset and climate change]. AB - Objective: To explore the relationship between the incidence of aortic dissection and climate change. Methods: The characteristics of 345 acute aortic dissection patients came from Beijing in Department of Vascular Surgery, Fu Wai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences, Peking Union Medical College from January 2005 to December 2015 were analyzed, retrospectively. There were 266 male and 79 female patients with a mean age of (49+/-12) years. There were 209 cases of Stanford type A aortic dissection, and 136 cases of type B. According to Fuwai aortic dissection classification: type A 8 cases, type B 95 cases, type Cp 13 cases, type Ct 187 cases, type Cd 40 cases, type D 2 cases. Meanwhile, monthly maximum temperature, minimum temperature, average temperature, average pressure, amount of rainfall, sunshine, relative humidity and other meteorological data were collected. Rank-sum test was used to analyze the difference of onset of aortic dissection in different seasons and months. Generalized additive models were implied to explore climate change and the onset of aortic dissection. Results: The onset of aortic dissection was related to season. Winter had higher morbidity compared to summer (M(Q(R)): 3(2) vs. 2(2), Z=1.97, P=0.05). The occurrence of aortic dissection was associated with month.December had the largest quantity, July had the least (2(3) vs. 2(1), Z=2.42, P=0.02). The mean temperature was statistically significant for indicating the change of aortic dissection onset. It meaned that onset probability was increased with the decrease of temperature (RR=1.01, 95%CI: 1.00 to 1.02, P=0.04). Conclusions: The onset of aortic dissection had something to do with season and month. The incidence of aortic dissection increases with temperature decreases. PMID- 29325360 TI - [Update on Staphylococcus lugdunensis infective endocarditis]. PMID- 29325361 TI - [Guidelines for the diagnosis and treatment for Chinese adult patients with hypertrophic cardiomyopathy]. PMID- 29325362 TI - [Predicting value of 2014 European guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy]. AB - Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results. The primary, second, and composite endpoints were recorded. The primary endpoint included SCD and appropriate ICD therapy, identical to the HCM Risk-SCD endpoint. The second endpoint included acute myocardial infarction, hospitalization for heart failure, thrombus embolism and end-stage HCM. The composite endpoint was either the primary or the second endpoint. Patients were divided into the 3 categories according to 5-year SCD probability assessed by HCM Risk-SCD model: low risk group<4%,intermediate risk group >=4% to<6%, and high risk group>=6%. Results: (1) Prevalence of endpoints: All 207 HCM patients completed the follow-up (350 (230, 547) days). During follow-up, 8 (3.86%) patients reached the primary endpoints (3 cases of SCD, 3 cases of survival after defibrillation, and 2 cases of appropriate ICD discharge); 21 (10.14%) patients reached the second endpoints (1 case of acute myocardial infarction, 16 cases of heart failure hospitalization, 2 cases of thromboembolism, and 2 cases of end-stage HCM). (2) Predicting value of HCM Risk-SCD model: Patients with primary endpoints had higher prevalence of syncope and intermediate-high risk of 5-year SCD, as compared to those without primary endpoints (both P<0.05). (3) Predicting value of HCM Risk-SCD model: The low risk group included 122 patients (59%), the intermediate risk group 42 (20%), and the high risk group 43 (21%). There was a clear trend towards to higher heart rate, higher values of PTF(V1) and plane QRS T angle, higher left ventricular mass index (LVMI), elevated maximal left ventricular outflow tract pressure gradient (LVOT-PGmax), enlarged left atrial dimension(LAD) and volume index (LAVI), reduced systolic mitral annular velocity (s'), and higher late gadolinium enhancement (LGE) volume and mass in patients with high risk of 5-year of SCD, as compared to those with low-intermediate risk (all P<0.05). Moreover, 5-year SCD probability was positively correlated with heart rate, plane QRS-T angle, LVMI, LAVI, LGE%, and negatively correlated with s'(r=0.161, P=0.019; r=0.669, P=0.001; r=0.206, P=0.004; r=0.284, P=0.000; r=0.351, P=0.000; r= -0.245, P=0.001; respectively). (4) LAD, LAVI, e' and s' were independent predictors for poor outcomes. HCM patients with LAD>=39 mm, LAVI>=49.6 ml/m(2), e'<=6.5 cm/s and s'<=6.6 cm/s were more likely to have adverse cardiovascular events (AUC 0.702, 95%CI 0.604-0.799, P=0.001; AUC 0.700, 95%CI 0.567-0.833, P=0.001; AUC 0.716, 95%CI 0.616-0.817, P=0.000; AUC 0.764, 95%CI 0.676-0.853, P=0.000,respectively). Conclusions: The HCM Risk-SCD model is of value in predicting SCD for Chinese HCM patients. The plane QRS-T angle and LGE% are the best predictors of 5-year SCD risk in Chinese HCM patients. Moreover, conventional echocardiographic parameters, including LAD, LAVI, e' and s', are useful to predict adverse cardiovascular events among Chinese HCM patients. PMID- 29325363 TI - [Related factors for the development of fulminant myocarditis in adults]. AB - Objective: To determine the early recognizable factors related to patients with fulminant myocarditis. Methods: Medical records from 60 adult patients who were diagnosed with acute viral myocarditis from January 2003 to September 2016 in our hospital were retrospectively reviewed, and divided into the fulminant group (n=9) and the non-fulminant group (n=51). Clinical presentations, biochemical markers, electrocardiography and echocardiography features on admission were analyzed. Results: Prevalence of syncope (33.3%(3/9) vs. 2.0% (1/51), P=0.009) and fatigue (77.8% (7/9) vs. 21.6% (11/51) , P=0.002) was significantly higher, while the duration from flu-like syndromes to chest discomfort was shorter ((2.0+/-1.8) days vs. (4.5+/-3.5) days, P=0.041) in the fulminant group than that in the non-fulminant group. Systolic blood pressare (SBP) ((94+/-14) mmHg(1 mmHg=0.133 kPa) vs. (117+/-12)mmHg, P=0.001) and left ventricular ejection fraction((49+/-12)% vs. (60+/-13)%, P=0.016) were significantly lower, while heart rate ((99+/-20)bpm vs. (84+/-19)bpm, P=0.040) and NT-proBNP concentration ((7 962 (1 470, 23 849) ng/L vs. 1 771 (45, 2 380) ng/L, P=0.000) were significantly higher in the fulminant group than those in the non-fulminant group. PR interval was longer (199 (140, 416) ms vs. 156 (112, 204) ms, P=0.021), QRS complex was wider ((127+/-14)ms vs. (95+/-13)ms, t=-6.647, P<0.001) in the fulminant group than those in the non-fulminant group. Prolonged QRS duration>=120 ms was more often in fulminant group (77.8%(7/9) vs. 5.9%(3/51), P=0.000). Multivariate analysis revealed that PR interval (adjusted odd ratio 1.044, 95%CI 1.005-1.084, P=0.025) and QRS complex width (adjusted odd ratio 1.252, 95%CI 1.045-1.501, P=0.015) were the independent risk factors significantly associated with fulminant myocarditis. Conclusions: The risk of a fulminant course of acute myocarditis is higher in patients with elevated NT proBNP, reduced left ventricular ejection fraction, and conduction disturbances at admission. Prolonged PR interval and widened QRS complex on admission are independent risk factors for developing fulminant myocarditis in adult patients with acute viral myocarditis. PMID- 29325364 TI - [The efficacy and safety of coil embolization of septal branch in the treatment of patients with obstructive hypertrophic cardiomyopathy]. AB - Objective: To observe the clinical efficacy and safety of coil embolization of septal branch in the treatment of obstructive hypertrophic cardiomyopathy (HOCM). Methods: Eighteen patients with HOCM hospitalized in our department from September 2014 to October 2016 were enrolled in this study. There were 12 males and 6 females in this cohort and the age of patients ranged from 22 to 64 years old. Left ventricular outflow tract gradient (LVOTG) was derived from echocardiographic apical five-chamber view at pre-operation and at 48 hours and 6 months post operation. 24-hour Holter ECG examination was performed to assess the ventricular tachycardia, atrial fibrillation, atrioventricular block at 3 days and 6 months after the interventional operation. Routine ECG and creatine kinase MB (CK-MB) examination were performed at pre-operation, at 6, 24 and 48 hours post operation. Cardiac troponin T (cTnT) was detected at pre-operation, at 24, 48 hours and 6 days post operation. The clinical symptoms (including chest tightness, chest pain, shortness of breath, syncope) and NYHA classification were assessed at 1, 6 months after the operation by telephone follow-up or outpatient clinic visit. Results: The average preoperative LVOTG detected by cardiac catheter was 103.6 (92.0, 115.0) mmHg (1 mmHg=0.133 kPa) , and the average LVOTG significantly reduced to 44.3 (41.6, 47.2) mmHg immediately after operation (P<0.01). The average ventricular septal thickness at 48 hours (19.2+/-3.1) mm and 6 months (17.8+/-2.8) mm after operation tended to be lower than the preoperative ventricular septal thickness ((20.4+/-3.5) mm, P>0.05). The echocardiographic derived average LVOTG at 48 hours and 6 months after operation was 42.9 (41.1, 45.5) and 39.1 (37.5, 41.0) mmHg, which were significant lower than the preoperative average LVOTG (94.3 (88.5, 101.8) mmHg, both P<0.01). LVOTG at 6 months after operation was significantly lower than that at 48 hours after the operation (P<0.05). The NYHA classification at 6 months after operation was significantly improved compared to pre-operation NYHA classification (P<0.01). During and after the operation, there was no complete atrioventricular block and ventricular tachycardia, no patient developed anterior wall and inferior myocardial infarction. Only one patient experienced transient left bundle branch block. During the 6 months following-up, there was no death, syncope, chest pain, palpitations, shortness of breath, paroxysmal dyspnea and/or lower extremity edema, ventricular tachycardia, atrioventricular block and atrial fibrillation, complete atrioventricular block and ventricular arrhythmia. Conclusion: The coil embolization of septal branch is effective and safe for the treatment of patients with HOCM. PMID- 29325365 TI - [Efficacy comparison of 3 strategies for real-world stable coronary artery disease patients with three-vessel disease]. AB - Objective: To compare the effectiveness of percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG) or medical therapy (MT) alone for real-world stable coronary artery disease (SCAD) patients with three-vessel disease (TVD) in mainland China. Methods: A total of 8 943 consecutive cases with TVD hospitalized in our center from April 2004 to February 2011 were screened for this study. In this cohort, 3 435 cases diagnosed as SCAD were analyzed. PCI, CABG, MT alone were performed in 1 313 (38.2%), 1 259 (36.7%) and 863 (25.1%) patients, respectively. Propensity score matching (PSM) analysis using nearest neighbor matching with a 1?1 ratio was applied, and 758 pairs of CABG and PCI groups, 552 pairs of PCI and MT groups, 639 pairs of CABG and MT groups were selected, respectively. 1- and 2-year clinical outcomes were evaluated among PCI, CABG and MT group. Kaplan-Meier curves and multivariable Cox regression method were used for survival analysis. Results: Significant differences were found at baseline between PCI, CABG and MT group, including age, gender, body mass index, family history of coronary artery disease, hyperlipidemia, diabetes mellitus, previous myocardial infarction, stroke, previous revascularization, peripheral vascular disease, SNYTAX score, left ventricular ejection fraction, hemoglobin, serum creatinine, high-sensitivity C-reactive protein, triglyceride and medication (all P<0.05) . All-cause death rates of 1- and 2-year follow-up of PCI, CABG and MT group were 0.6% (8/1 313), 1.1% (14/1 259), 3.4% (29/863) (P<0.001) and 1.1%(14/1 313), 1.5%(19/1 259), 7.3%(63/863) (P<0.001), respectively. Multivariate Cox regression analysis showed that 1-year MACCE rate (HR=0.51, 95%CI 0.33-0.77, P=0.001) was significantly reduced, due to the significant decrease of myocardial infarction (MI) rate (HR=0.09, 95%CI 0.01 0.76, P=0.027) and repeat revascularization rate (HR=0.21, 95%CI 0.10-0.41, P<0.001) in CABG group compared to PCI group, while all-cause death (HR=1.21, 95%CI 0.48-3.00, P=0.69) and stroke rate (HR=2.31, 95%CI 0.82-6.47, P=0.112) were similar between 2 groups. 2-year outcome showed CABG was associated with higher stroke rate (HR=2.20, 95%CI 1.06-4.55, P=0.034) and lower MI (HR=0.19, 95%CI 0.06 0.59, P=0.004) and repeat revascularization rate (HR=0.22, 95%CI 0.13-0.37, P<0.001), and lower MACCE rate (HR=0.49, 95%CI 0.36-0.68, P<0.001). Compared to MT group, 2-year all-cause death (HR=0.22, 95%CI 0.12-0.42, P<0.001) and MACCE rate (HR=0.63, 95%CI 0.47-0.83, P=0.001) were lower in PCI group, while 2-year all-cause death (HR=0.21, 95%CI 0.13-0.37, P<0.001), MACCE (HR=0.31, 95%CI 0.23 0.42, P<0.001), MI (HR=0.19, 95%CI 0.06-0.60, P=0.004) and repeat revascularization rate (HR=0.24, 95%CI 0.13-0.41, P<0.001) were lower in CABG group. Results of multivariate Cox regression analysis after PSM were consistent with above results. Conclusion: For SCAD patients with TVD, CABG shows better effectiveness by reducing MI and revascularization risk as compared to PCI, even though stroke risk is somehow higher in CABG patients. Patients received MT alone are associated with worse outcomes than those undergoing revascularization strategies. PMID- 29325366 TI - [Outcome of patients with coronary artery disease and left ventricular ejection fraction less than 50% undergoing percutaneous coronary intervention]. AB - Objective: To investigate the in-hospital and long-term outcomes of patients with left ventricular ejection fraction (LVEF) <50% undergoing percutaneous coronary intervention (PCI) . Methods: From January to December 2013, 10 445 consecutive patients who underwent PCI in Fuwai Hospital and the LVEF value was available were prospectively included. The patients were divided into LVEF>=50% group (9 896 cases) and LVEF<50% group (549 cases) . The in-hospital and 2-year clinical outcomes were compared between the 2 groups. The association between LVEF<50% and clinical outcomes was assessed using multivariable Cox regression analysis. Results: (1) Compared with LVEF >=50% group, LVEF< 50% group had higher rates of in-hospital all-cause death (1.1% (6/549) vs. 0.2% (17/9 896) , P<0.01) , cardiac death (1.1% (6/549) vs. 0.1% (12/9 896) , P<0.01) , in-stent thrombosis (0.7% (4/549) vs. 0.2% (18/9 896) , P<0.01) , myocardial infarction (2.4% (13/549) vs. 1.2% (121/9 896) , P<0.05) ,and major adverse cardiovascular and cerebrovascular events (MACCE) which including death, myocardial infarction, revascularization, in-stent thrombosis, and stroke (3.6% (20/549) vs. 1.4% (137/9 896) , P<0.01) . (2) A total of 10 388 (99.5%) patients completed 2-year follow-up. Compared with LVEF >=50% group, LVEF<50% group had higher rates of 2-year all-cause death (4.7% (26/549) vs. 1.0% (101/9 896) , P<0.01) , cardiac death (4.0% (22/549) vs. 0.5% (50/9 896) , P<0.01) , in-stent thrombosis (3.1% (17/549) vs. 0.7% (71/9 896) , P<0.001) , myocardial infarction (4.2% (23/549) vs. 1.9% (186/9 896) , P<0.01) ,and MACCE (17.9% (98/549) vs. 11.8% (1 172/9 896) , P<0.01) . There were no significant differences on the rates of 2-year target-vessel revascularization, bleeding and stroke between the two groups. (3) The multivariable Cox regression analysis demonstrated that LVEF< 50% was the independent risk factor of 2-year all-cause death (HR=2.47, 95%CI 1.49-4.08, P<0.01) , cardiac death (HR=3.25, 95%CI 1.79-5.90, P<0.01) , in-stent thrombosis (HR=4.19, 95%CI 2.39-7.34, P<0.01) , myocardial infarction (HR=2.00, 95%CI 1.26-3.16, P<0.01) , and MACCE (HR=1.40, 95%CI 1.13-1.74, P<0.01) . (4) After propensity score matching, all in-hospital outcomes were similar between the two groups, including all-cause death, cardiac death, in-stent thrombosis, myocardial infarction, revascularization, bleeding, stroke, and MACCE (all P>0.05) . After propensity score matching,the multivariable Cox regression analysis demonstrated that LVEF<50% was still an independent risk factor of 2-year all-cause death (HR=3.08, 95%CI 1.37-6.89, P<0.01) , cardiac death (HR= 4.12, 95%CI 1.53-11.07, P<0.01) ,and in-stent thrombosis (HR=3.82, 95%CI 1.27-11.5, P<0.05) . Conclusion: LVEF< 50% is an independent risk factor of 2-year all-cause death, cardiac death, and in-stent thrombosis in patients undergoing PCI, but it does not increase the risk of target-vessel revascularization, bleeding or stroke. PMID- 29325367 TI - [Effects of aerobic exercise combined with resistance training on the cardiorespiratory fitness and exercise capacity of patients with stable coronary artery disease]. AB - Objective: To observe the effects of aerobic exercise combined with resistance training on the cardiorespiratory fitness and exercise capacity of patients with stable coronary artery disease (CAD) . Methods: From June 2014 to December 2015, 73 patients with stable CAD in our department were recruited and randomly assigned to two groups: the control group (n=38) and the exercise group (n=35) . Patients in both groups received conventional medical treatment for CAD and related cardiac health education. While for patients in exercise group, a twelve week aerobic exercise combined with resistance training program were applied on top of conventional treatment and health education. Cardiorespiratory fitness and exercise capacity were evaluated by cardiopulmonary exercise testing. Results: (1) The exercise capacity was significantly increased in the exercise group after 12 weeks training as compared to baseline level: peak oxygen uptake per kilogram ( (26.25+/-5.14) ml.kg(-1).min(-1) vs. (20.88+/-4.59) ml.kg(-1).min(-1)) , anaerobic threshold ( (15.24+/-2.75) ml.kg(-1).min(-1) vs. (13.52+/-2.92) ml.kg( 1).min(-1)], peak oxygen pulse ( (11.91+/-2.89) ml/beat vs. (9.77+/-2.49) ml/beat) , peak Watts ( (113.2+/-34.0) W vs. (103.7+/-27.9) W) , peak metabolic equivalent ( (7.57+/-1.46) METs vs. (6.00+/-1.32) METs) (all P<0.05 vs. baseline) . (2) The degree of improvement of peak oxygen uptake per kilogram ( (26.25+/ 5.14) ml.kg(-1).min(-1) vs. (22.32+/-4.00) ml.kg(-1).min(-1)) , anaerobic threshold ( (15.24+/-2.75) ml.kg(-1).min(-1) vs. (13.76+/-2.51) ml.kg(-1).min( 1)) , peak oxygen pulse ( (11.91+/-2.89) ml/beat vs. (9.99+/-2.15) ml/beat) and peak metabolic equivalent ( (7.57+/-1.46) METs vs. (6.47+/-1.17) METs) were significantly higher in exercise group than in control group (all P<0.05) . Conclusion: Aerobic training at an aerobic threshold level combined with Thera band resistance training is safe for patients with stable coronary artery disease. This combined exercise program can significantly improve the cardiorespiratory fitness and exercise capacity of patients with stable coronary artery disease. PMID- 29325368 TI - [The effects and related mechanism of salvianolate on rats with myocardial ischemia-reperfusion injury]. AB - Objective: To investigate the effect and related mechanism of salvianolate on myocardial ischemia-reperfusion (I/R) injury in rats. Methods: Thirty-six adult Sprague-Dawley rats were divided into three groups (n=12 each) using random number table method: control group (coronary artery was not ligated) , I/R group (myocardial I/R model was established by ligation and opening of left anterior descending coronary artery) , and salvianolate+I/R group (5 mg/kg of salvianolate was injected through the tail vein at the time of reperfusion) .Triphenyltetrazolium chloride (TTC) stain was utilized to measure the myocardial infarct size. The ELISA method was used to detect myocardial necrotic markers, including cardiac troponin T (TnT) , creatine kinase-MB (CK-MB) and lactate dehydrogenase (LDH) . Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining was used to analyses the levels of apoptosis. The levels of cleaved Caspase-3 protein were analyzed with Western blot.Cold luminescence method was used to detect the ATP level of myocardial tissue. The levels of 8-hydroxy-2'-deoxyguanosine (8-OHdG) in myocardial tissue were detected by immunofluorescence. Results: (1) The infarct size in control group, I/R group and salvianolate+I/R group were 0, (23.90+/-5.66) %, and (12.06+/-5.97) %, respectively (P<0.01 or 0.05) . (2) The TnT level was (0.04+/-0.03) , (16.96+/ 2.80) , and (6.95+/-2.31) ng/ml, the CK-MB level was (43.6+/-23.5) , (1 135.8+/ 180.6) ,and (390.3+/-121.5) U/L, the LDH level was (119.0+/-58.6) , (1 838.6+/ 543.8) , and (631.6+/-228.3) U/L in control group, I/R group and salvianolate+I/R group, all significantly lower in salvianolate+I/R group than in I/R group (all P<0.01) . (3) The rate of TUNEL positive myocardial cells were (1.07+/-1.16) %, (21.36+/-4.11) %,and (13.30+/-3.67) % in control group, I/R group,and salvianolate+I/R group (all P<0.01) . (4) The cleaved Caspase-3 expression was 0.11+/-0.05, 0.84+/-0.20,and 0.43+/-0.09 in control group, I/R group, and salvianolate+I/R group (all P<0.01) . (5) The ATP level of myocardial tissue was (100.0+/-0.0) %, (34.2+/-9.2) %,and (62.1+/-18.0) % respectively in control group, I/R group, and salvianolate+I/R group (all P<0.01) . (6) There was almost no 8-OHdG expression in the myocardial tissue of control group. The expression of 8-OHdG in the myocardial tissue of I/R group was greater than that of the control group. The expression of 8-OHdG in the myocardial tissue of salvianolate+I/R group was less than that of the I/R group. Conclusion: Salvianolate may alleviate myocardial I/R injury of rat through reducing the mitochondrial DNA oxidative damage, protecting mitochondrial function and inhibiting the apoptosis of myocardial cells. PMID- 29325369 TI - [CD137 signaling promotes the formation of plaque calcification via inhibiting the fusion of autophagy and lysosomal in Apo E(-/-) mice]. AB - Objective: To investigate whether CD137 signaling promoted the formation of atherosclerotic plaque calcification by inhibiting the fusion of autophagosome and lysosome. Methods: (1) In vivo, CD137 agonist antibody and anti-CD137 antibody were used to stimulate and inhibit the CD137 signaling, respectively. Fifteen Apo E(-/-) mice were randomly divided into three groups: control group (intraperitoneal injection of IgG2b 200 ug) , CD137 agonist group (intraperitoneal injection of CD137 agonist antibody 200 ug) , anti-CD137 group (pretreatment with 200 ug anti-CD137 antibody for 24 hours, then injection of CD137 agonist antibody) . (2) In vitro, primary culture of mouse aortic VSMCs obtained through adherence methods for tissues explants. The cells was divided into three groups: control group, agonist-CD137 group (CD137 agonist antibody 10 MUg/ml) , and anti-CD137 group (pretreatment with 10 MUg/ml anti-CD137 antibody for 60 minutes, then incubated with 10 MUg/ml CD137 agonist antibody) . Von kossa staining was used to detect the calcification in the cell and plaque. Immunohistochemical staining was used to observe the expression of LC3B, Beclin 1 and p62 which are associated with autophagy. The levels of autophagy related protein (LC3) , Beclin 1, p62, and the expression of Runx2 and bone morphogenetic protein 2, which is associated with osteogenic differentiation in the VSMCs, were determined by Western blot. The autophagy flow of each group was detected by fluorescence microscopy. The autophagy was observed by transmission electron microscope in vivo and in vitro. Results: (1) In vivo, the calcified plaque area in CD137 agonist group was significantly larger than that in the control group (3.01%+/-0.45% vs. 0.27%+/-0.06%, P<0.01) , and calcified plaque area in anti CD137 group was significantly smaller compared with that in the CD137 agonist group (1.23%+/-0.39% vs. 3.01%+/-0.45%, P<0.05) . Immunohistochemical staining showed that the expression of early autophagy marker protein LC3B and Beclin 1 were significantly upregulated in CD137 agonist group and anti-CD137 group than in control group, and the highest expression was observed in CD137 agonist group (P<0.05) . The expression of advanced autophagy marker protein p62 was higher in the CD137 agonist group than in the anti-CD137 group (P<0.05) . (2) In vitro, the ratio of autophagy related protein LC3 II/I and p62 protein expression were significantly higher in CD137 agonist group and anti-CD137 group than in control group (P<0.01) , while the expression of p62 protein was significantly higher in CD137 agonist group than that in anti-CD137 group (P<0.05) . In the cell calcification inducing experiment, the expression of BMP-2 and Runx2 protein was significantly higher in CD137 agonist group than that in control group (P<0.01) , but the levels of BMP-2 and Runx2 protein were lower in anti-CD137 group than in CD137 agonist group (P<0.05) . Conclusion: Our results indicate that activation of CD137 signaling can promote the formation of atherosclerotic plaque calcification by inhibiting the fusion of autophagosome and lysosome. PMID- 29325371 TI - [A case of acute myocardial infarction manifested with headache as the only symptom]. PMID- 29325372 TI - [Association between hypertension and emotional disorders: effect of psychological intervention]. PMID- 29325370 TI - [Association between carotid artery plaques and all-cause mortality and cardiovascular events]. AB - Objective: To observe the association of carotid artery plaque with all-cause mortality and cardiovascular events. Methods: A total of 7 017 participants who completed the carotid sonography examination between 2010 and 2011 were selected from the stroke and the elderly prospective cohort Kailuan study. The participants of stroke cohort received health examination between 2006 and 2007, and participants of elderly cohort received health examination between 2010 and 2011. All participants were divided into plaque group (3 285 cases) and without plaque group (3 732 cases) according to with or without carotid artery plaque.The all-cause mortality and cardiovascular events were compared between the 2 groups. Multivariate Cox regression analysis was used to identify the association of carotid artery plaque with all-cause mortality and cardiovascular events. Results: (1) There were 4 297 male (61.2%) and 2 720 female (38.8%) in this cohort and participants were (58.1+/-11.8) years old. Age, systolic blood pressure, diastolic blood pressure, fasting plasma glucose, total cholesterol, low-density lipoprotein cholesterol, rates of male, smoking, drinking, history of hypertension and diabetes mellitus were higher in the plaque group than in the without plaque group, and high density lipoprotein cholesterol was lower in the plaque group than in the without plaque group (all P<0.01) at baseline. (2) During a follow-up period of (4.92+/-0.59) years, the incidence rates of all cause mortality in the plaque group and without plaque group were 5.5% (180/3 285) and 1.5% (57/3 732) ,respectively (P<0.01) .The incidence rates of cardiovascular events in the plaque group and without plaque group were 3.8% (124/3 285) and 1.4% (52/3 732) , respectively (P<0.01) . (3) Multivariate Cox regression analysis showed that carotid plaque was an independent risk factor of all-cause mortality (HR=1.667, 95%CI 1.160-2.395, P<0.01) and cardiovascular events (HR=1.942, 95%CI 1.312-2.876, P<0.01) after adjusting for age, sex, systolic blood pressure, diastolic blood pressure, fasting plasma glucose, body mass index, total cholesterol,low density lipoprotein cholesterol, high density lipoprotein cholesterol, smoking, drinking, history of hypertension and diabetes mellitus, and use of lipid-regulating drugs. Conclusion: Carotid plaque is an independent risk factor of all-cause mortality and cardiovascular events. Clinical Trial Registration Chinese Clinical Trials Registry, ChiCTR-TNC 11001489. PMID- 29325373 TI - [The practice of inter-professional team approach for patients with chronic heart failure]. PMID- 29325374 TI - [Research progress of treatment of myocardial infarction using angiogenesis factor]. PMID- 29325375 TI - [Research progress on the association between Pin1 and cardiovascular diseases]. PMID- 29325376 TI - [Research progress on the role of microRNAs in pulmonary hypertension]. PMID- 29325378 TI - [Research progress on the role of regulators of G-protein signaling in the pathogenesis of myocardial hypertrophy]. PMID- 29325377 TI - [Research progress on the role of exosomes in myocardial ischemia/reperfusion injury]. PMID- 29325379 TI - [Pay attention to the clinical classification and individualized treatment of superior oblique palsy]. AB - Superior oblique palsy (SOP) has many anatomic variations, and the accompanied paralysis generalization could stimulate the secondary changes of other extra ocular muscles. Therefore, the clinical manifestations of SOP can be various, and the surgical design is complicated and changeable. It is necessary to understand the clinical development, stages and types of SOP correctly, and to take into account the developmental characteristics of the superior oblique muscle and select the individualized treatment plan. In this article, the SOP manifestations, imaging features, clinical examination and personalized treatment options are discussed, in order to provide some reasonable treatment options for SOP surgery. (Chin J Ophthalmol, 2017, 53: 881-884). PMID- 29325380 TI - [Could binocular treatment be a substitute for patching]. AB - Amblyopia is a common eye disease with a high prevalence in clinical practice of pediatric ophthalmology and strabismus. The primary treatment strategy for amblyopia is precise correction of refractive errors and patching of the dominant eye. The application of patching has a history of more than 200 years, and now is still the most effective method for treatment of amblyopia. Similar to the principle of traditional patching, atropine penalization has been testified that it can be used as an initial treatment for amblyopia with similar therapeutic effects as patching. In the past decade, binocular treatment has been proposed as a strategy for the treatment of amblyopia. Successively, different kinds of binocular treatment methods were reported by the researchers. This article systematically reviews all these methods reported in the recent years and their therapeutic effects. Most results about the therapeutic effect of binocular treatment are from the designers of the studies themselves, but in recent 2 years the results from monocenter or multicenter randomized controlled clinical trials to compare the therapeutic effects of binocular treatment and patching were reported. We hope to help colleagues have a comprehensive and objective understanding of the research progress on binocular treatment for amblyopia and thus keep a cool head on the question of whether binocular treatment could be a substitute for patching. (Chin J Ophthalmol, 2017, 53: 885-889). PMID- 29325381 TI - [Longterm surgery outcome of Mobius syndrome]. AB - Objective: To investigate clinical features and the long-term surgery results of Mobius syndrome patients. Methods: This investigation presents a retrospective study of Mobius syndrome in 7 children we found since 2009. All 7 patients had MRI scan, ocular alignment in primary position, the limitation of versions and ductions and forced duction under general anesthesia. Early surgery is done to the 7 esotropia children. The pre-operative and post-operative outcomes, including the ocular alignment, deviation measurements and ocular rotations, were evaluated and compared. Results: MRI showed absence of uni- or bilateral CN6 and CN7 in all 7 patients. All 7 patients underwent extra large recession of medial rectus at the first surgery, (6.17+/-1.47) mm/eye. Variation of ocular deviation in the primary position within 6 months postoperatively in all patients, demonstrating that strabismus surgical stabilization needs time. Three patients with esotropia deviation>=40 degrees preoperative were under corrected and needed the secondary operations. The average deviation in the primary position was +35.00 degrees +/-16.58 degrees before surgery and +2.14 degrees +/-5.67 degrees after surgery(t=6.040, P<0.01). The abduction in affected eye is limited both pre and postoperatively and a smaller limitation of adduction after surgery. Conclusions: Mobius syndrome has been classified to congenital cranial dysinnervation disorders (CCDDs). We recommend MR recession as the first surgical choice because of the lack of abduction ability. Longterm surgical results were considered satisfactory, improving patient self-esteem and the parent satisfaction. (Chin J Ophthalmol, 2017, 53: 897-902). PMID- 29325382 TI - [Knapp procedure and modified Knapp procedure with Foster suture for the treatment of double elevator palsy]. AB - Objective: To investigate the efficacy of Knapp procedure and modified Knapp procedure with Foster suture in the treatment of double elevator palsy(DEP). Methods: Retrospective study. Twenty-two patients with congenital DEP were underwent Knapp procedure (n=15) and modified Knapp procedure(n=7). The clinical data were retrospectively analyzed, including the preoperative and postoperative vertical deviation in the primary position, ocular motility, and binocular vision. Results: The average vertical deviation in the primary position was (34.7+/-8.6) prism diopters(PD) before surgery and (6.5+/-6.5) PD after surgery (t=30.41, P=0.00) in the group underwent Knapp procedure. The mean preoperative and postoperative deviations of the group underwent modified procedure were respectively (38.6+/-14.6) PD and (5.7+/-9.3)PD (t=15.33, P=0.00). The mean corrected vertical deviation of the latter (32.8+/-5.7) PD was greater than that of the former (28.1+/-3.6) PD(t=-2.39, P=0.03). The mean improved upgaze in the modified group (2.6+/-0.5) was more obvious than that in the Knapp group (1.9+/ 0.6) (t=2.41, P=0.02). There is no significant difference in the surgical effect on downgaze between two groups (U=43.00, P=0.54). Seven patients having binocular vision with abnormal head posture (AHP) before surgery obtained binocular single vision in the primary position and reading position after operations. AHP disappeared or reduced to less than 5 degrees . The surgical outcomes were satisfied in 72.7% patients. But the patients with >=40 PD preoperative vertical deviation were under-corrected and needed the further operations. Conclusions: Knapp procedure and modified Knapp procedure with Foster suture were the efficient procedures for treatment of DEP without restriction of ipsilateral inferior rectus. Both procedures can obviously correct the vertical deviation and improve upgaze without remarkable limitation of downgaze, which is good to obtain the binocular single vision in the primary and reading position. The modified procedure has more powerful effect on the corrected vertical deviation and improved upgaze. (Chin J Ophthalmol, 2017, 53: 903-907). PMID- 29325383 TI - [Clinical features and surgical outcomes of acute acquired comitant esotropia]. AB - Objective: To investigate the clinical features and surgical outcomes of patients with acute acquired concomitant esotropia (AACE) type II(AACE-II) and type III (AACE-III). Methods: Retrospective case series analysis. Medical records of consecutive patients who underwent strabismus surgery for AACE-II and AACE-III in Shandong Provincial Hospital affiliated to Shandong University between January 2011 and June 2016 with a minimum follow-up time of 3 months were collected. Each patient underwent a complete ophthalmological and orthoptic examination to exclude esotropia resulting from other reasons, and a systemic assessment to exclude AACE related to intracranial and systemic diseases. Surgical procedures were determined according to the esodeviations measured at distance and near and the different dominant eye of patients. A successful surgical alignment was defined as the distant and near deviation in the primary gaze within 8 prism diopters (PD) of orthophoria and no diplopia. Results: Twenty-nine patients were enrolled in this study, including 17 males and 12 females. The mean age of the patients was 22.14+/-15.13 years (range, 5-63 years). The median corrected visual acuity (LogMAR) of patients with AACE-IIwas 0 (range, 0.22 to 0), and that of patients with AACE-III was 0 (range, 0.10 to 0). The median esodeviation of patients with AACE-II at distance was 35 PD (range, 10 to 55 PD), and that at near was 35 PD (range, 20 to 60 PD). The median esodeviation of patients with AACE-III at distance was 30 PD (range, 12 to 50 PD), and that at near was 30 PD (range, 6 to 50 PD). When tested with the red filter test preoperatively, all the patients had an uncrossed horizontal diplopia with the same distance in left and right lateral fixations. With a mean follow-up time of 12.0+/-12.6 months, of all the 29 patients, 24 patients (83%) achieved successful surgical alignment after one surgery, and 5 patients (17%) were undercorrected or had recurrence, in whom 4 were successfully aligned after repeated surgery (performed at a mean of 3.5 months after the first surgery) and 1 was treated with the Fresnel press-on prism. At the last follow-up, of all the 28 patients successfully aligned, 20 (71%) regained bifoveal fusion, 8 (29%) regained peripheral fusion, 17 (61%) regained normal stereopsis (stereoacuity <=60"), and 11 regained a certain degree of stereopsis (stereoacuity 80"-400"). The constituent ratio of biocular central fusion and peripheral fusion in patients with AACE-II had no significant difference from patients with AACE-III (chi(2)=0.235, P>0.05), and the constituent ratio of central stereopsis, macular stereopsis, and peripheral stereopsis in patients with AACE-II had no significant difference from patients with AACE-III (chi(2)=0.762, P>0.05). Conclusions: All patients exhibited the typical features of AACE, which included an acute onset of diplopia and comitant esotropia, a wide range of onset age of the patients, normal corrected visual acuity and ocular movements, a mean moderate level of esodeviation with a wide range, and a good binocular potential. According to the esodeviations measured at distance and near and the different dominant eye of patients, good oculomotor alignment and perceptual outcomes may be obtained in patients with AACE-IIand AACE-III. (Chin J Ophthalmol, 2017, 53: 908-916). PMID- 29325384 TI - [Diagnosis and treatment of strabismus caused by nasal endoscopic surgery]. AB - Objective: Strabismus with diplopia is the main orbital complication of functional endoscopic sinus surgery (FESS). This study was to analyze clinical findings, treatment and outcomes of such cases. Methods: Retrospective case series. Twenty-three cases were divided into 3 groups based on the disease severity: group A, partial transection of the medial rectus muscle, group B, complete transection of the medical rectus, group C, transection of the medial rectus combined with the other orbital injuries. Complete ophthalmology examinations, including eye alignment, eye motility, force duction test, force generation test, general eye exam, and medical imaging (orbital CT or MRI), were performed for each case. The treatment included botulinum toxin (Botox) injection to the lateral rectus muscle, transposition of the vertical rectus muscle, and orbital surgery if needed. Results: In group A with Botox injection, all the cases achieved single vision in primary position, but still remained some adduction weakness. In group B treated by vertical transposition surgery combined with Botox, 22% of the cases got single vision in primary gaze. In group C, even with more efforts of treatment, the cases with orbital injury can only get cosmetic improvement, and diplopia and adduction dysfunction were found in most cases. Conclusions: Due to the variety of the complications of FESS, force duction test is a crucial exam to detect the direction and severity of synechia in the orbit, which will give solid information to surgery approach as well as prognosis. Botox injection at early stage will minimize the contraction of antagonist lateral rectus, helping to postpone the transposition surgery which may cause anterior segment ischemia when performed right after the medial rectus transection injury. Botox may even reduce the synechia by minimizing the scarring process. Partial vertical rectus transposition combined with muscle resection may effectively correct the eye misalignment in primary gaze and improve eye motility. The prognosis of FESS induced orbital complications is quite related with the severity of the injury. Botox combined with surgery may help medial rectus transection cases to achieve single vision in primary gaze, but when there is any other orbital injury, treatment may only improve cosmetic appearance. (Chin J Ophthalmol, 2017, 53: 917-923). PMID- 29325385 TI - [The effect of surgical methods and postoperative eye position on the quality of life in patients with intermittent exotropia]. AB - Objective: To evaluate the effects of different surgical methods and postoperative eye positions on the quality of life of children with intermittent exotropia (IXT) and their parents 3 months following strabismus surgery. Methods: Clinical observation. One-hundred and eighty children aged 2 to 17 years with IXT who received surgical treatment were recruited. One parent of each child was investigated by using 2 kinds of the Chinese version of the Intermittent Exotropia Questionnaires (CIXTQ) within 1 weeks before and at 3 months after surgery: the parent proxy scale (for parents to assess children's health related quality of life (HRQoL)) and the parent scale (containing functional, psychosocial and surgery subscales; for parents to assess their HRQoL). One hundred and eighty children were divided into different groups according to the surgical. Methods Monocular surgery group, binocular surgery group and eye position after 3 months: undercorrection group, successful group, overcorrection group, to explore: (1) the change of scores before and after surgery. (2) the difference of score changes after surgery between monocular and binocular surgery groups. (3) the difference of score changes after surgery between different postoperative eye position groups. Results: Significant improvement in median scores was seen from pre-operation to 3months post-operatively for all the proxy scale (t=-9.585, P<0.001), the functional (t=-11.361, P<0.001), psychosocial (t= 10.856, P<0.001) and surgery subscale (t=-11.622, P< 0.001) of parent scale. The change values from pre-operation to 3months post-operatively were not significantly different between monocular and binocular surgery groups for all the proxy scale (t=0.242, P=0.330), the functional (t=0.462, P=0.050), psychosocial (t=0.781, P=0.582) and surgery subscale (t=0.009, P=0.355) of parent scale, but significantly different between undercorrection, successful and overcorrection groups for the proxy scale (F=21.527, P<0.001), the functional (F=54.236, P<0.001), psychosocial (F=41.784, P<0.001) and surgery subscale (F=31.943, P<0.001). The scores of proxy scale and 3 parent subscales were all significantly improved (t=-13.639 to -6.059, P<0.05) after operation in both the undercorrection and successful groups, while significantly decreased in the overcorrection group (t=1.350-4.391, P<0.05). Conclusions: HRQoL can be improved significantly in both the undercorrection and successful groups, while decreased in the overcorrection group. (Chin J Ophthalmol, 2017, 53: 924-930). PMID- 29325386 TI - [The protective effect of the activation of NMDAR1/ERK1/2 signal pathway induced by levodopa on visual cortical neurons in monocular deprivation rats]. AB - Objective: To investigate the protection effects of the activation of NMDAR1(NMDA receptor 1)/ERK1/2 signal pathway on visual cortex nerve cells induced by levodopa in amblyopia rats. Methods: SD rats of SPF grade, were randomly divided into for groups of 9, group A. Control, B. MD group, C. L-levodopa(20 mg.kg( 1))+MD group, D. H-levodopa (80 mg.kg(-1))+MD group, E. H-levodopa+MD+MK801 group, F. H-levodopa+MD+PD98059 group, G. MD+MK801 group, H. MD+PD98059 group, I. MD+DMSO group. Amblyopia rats were made by suture of the right eye. Levodopa was used to treatment amblyopia by gavage, and intervened by intracerebroventricular injection of MK801 and PD98059 respectively. The expression of NR1, p-ERK1/2, ERK1/2, NGF and c-FOS were detected by Western blotting. Nissl staining was used to detect morphological changes of neurons. Neuronal apoptosis was detected by TUNEL method, and detected the expression of Caspase-3, NGF and c-FOS by immunohistochemical staining. One/Two way Chi-square analysis was used for data analysis. LSD-t test was used as comparison between every two groups. Results: The morphology of Nissl bodies in neurons was complete and clear in A group, and the size of Nissl bodies got smaller, and caused karyopyknosis and loss of neurons in visual cortex of B group. Compared with A group, the apoptosis of visual cortical neurons(23.09+/-2.00 vs. 2.20+/-0.35, t=12.120, P=0.000) and the number of Caspase-3 postive cells (22.70+/-1.50 vs. 3.30+/-0.54, t=12.120, P=0.000)were significantly increased, the expression of NGF(0.31+/-0.04 vs. 0.74+/-0.09, t=7.674, P=0.000) and c-FOS(0.25+/-0.03 vs. 0.57+/-0.07, t=5.919, P=0.000) and the rats of NGF(8.30+/-0.82 vs. 35.18+/-2.01, t=12.37, P=0.0000) and c-FOS (10.84+/-1.02 vs. 35.68+/-2.55, t=9.056, P=0.0001) postive cell were decreased significantly in B group. After treatment with levodopa, the morphology of neurons recovered, the apoptosis of visual cortical neurons relieved, the expression of NR1(0.75+/-0.09 vs. 0.40+/-0.05, t=8.528, P=0.001) and p ERK1/2(2.13+/-0.26 vs. 0.68+/-0.17, t=3.488, P=0.008) were increased significantly, and the rats of NGF (18.07+/-0.87 vs. 8.30+/-0.82, t=8.18, P=0.0000) and c-FOS (19.78+/-0.91 vs. 10.84+/-1.02, t=6.543, P=0.0001) postive cells were significantly increased. MK-801 or PD98059 intervention could effectively attenuate the effect of levodopa. It could effectively down-regulated the expression of NR1 (0.53+/-0.06 vs. 0.95+/-0.12, t=5.647, P=0.005) and p ERK1/2(1.52+/-0.18 vs. 2.58+/-0.30, t=3.091, P=0.013) interference with MK801 or PD98059 in MD rats. MK-801 or PD98059 intervention further promote the Nissl body volume reduced, neurons karyopyknosis, the apoptosis of visual cortical neurons and Caspase-3 expression, and restrain the expression of NGF and c-FOS. Conclusion: Levodopa played a protective role in visual cortex nerve cells of amblyopia rats at least partially through activation of NMDA-ERK1/2 signal pathway. (Chin J Ophthalmol, 2017, 53: 931-940). PMID- 29325387 TI - [Clinical effects of pediatric penetrating keratoplasty for congenital corneal opacity]. AB - Objective: To report the clinical results of pediatric penetrating keratoplasty (PKP) in patients under 3 years old with congenital corneal opacity. Methods: Retrospective study. Sixteen eyes of 12 patients who were treated with PKP in Aier Eye Hospital Group from June 2009 to December 2016 were enrolled in this study. All the patients were diagnosed as congenital corneal opacities: 8 cases (11 eyes) with Peter's anomaly I, 2 cases (3 eyes) with sclerocornea, and 2 cases (2 eyes) with corneal dermoid tumor combined with iris synechia. Seven cases (7 eyes) were under 1 year old. Eight cases (10 eyes) could not follow the light. Only 1 case (2 eyes) received PKP with extracapsular cataract extraction, and the others only had PKP. Postoperative examinations were performed more frequently than in adults, and sometimes general anesthesia was needed. Results: The follow up period was from 8 months to 6 years (33.17+/-22.60 months). The postoperative visual acuity improvement was found in all eyes from 1 week to 1 month after surgery except a 3-year-old patient with corneal dermoid tumor with serious esotropia. All the surgeries were successful without intraoperative complications. Graft rejection occurred in 4 cases (4 eyes). The graft of a 33 month-old patient became semitransparent. The grafts of 2 cases under 1 year old were clear after drug therapy. And the vision of a 3-year-old patient with Peter anomaly improved obviously, but immune rejection occurred 2 years after surgery. The second PKP was performed, but rejection occurred again. Secondary glaucoma was found in the other eye early after operation; anti-glaucoma surgery failed, and the graft became cloudy. Graft infection associated with loosened sutures was observed in one case (2 eyes) of sclerocornea, and the second PKP failed. Conclusions: For the patients with congenital corneal opacities, there is often a noticeable visual improvement after PKP. Good postoperative care, appropriate amblyopia treatment and timely examination are the keys to success. (Chin J Ophthalmol, 2017, 53: 941-946). PMID- 29325388 TI - [The research advances of microRNA-184 and related ocular diseases]. AB - microRNA-184 (miR-184) is a small, non-coding, endogenic RNA molecule of 22 nucleotides in length. It is a highly conserved sequence throughout many different species. Multiple studies have demonstrated that miR-184 is an important factor in regulating gene expression at the post-transcriptional level. miR-184 plays vital roles in many biological processes, including development and differentiation in many tissues and organs. Meanwhile, the research on the physiological and pathological role of miR-184 in eyes draws more and more attention lately. Recent research indicates that miR-184 is highly expressed in the cornea and lens of mice. miR-184 plays crucial regulatory roles in several ocular diseases, such as neovascularization, keratoconus, endothelial dystrophy iris hypoplasia-congenital cataract-stromal thinning syndrome, corneal squamous cell carcinoma, age-related macular degeneration and cataract. Here we summarize and discuss the recent findings of miR-184 in its gene structure, gene expression and regulation, biological function and its relevance with ocular diseases. (Chin J Ophthalmol, 2017, 53: 950-955). PMID- 29325389 TI - [Development of en face optical coherence tomography and its application in ocular fundus diseases]. AB - Optical coherence tomography (OCT) is able to obtain the cross-sectional image of the fundus noninvasively and quickly. The cross-sectional image in vivo almost matches the histological section of the retina. OCT has become the most important imaging tool in ophthalmology. Based on the latest OCT technology, en face OCT is a new imaging technique that reveals the structure of retinal and choroidal sections approximately paralleled to the retina surface. Compared to the conventional OCT, en face OCT provides more comprehensive information and makes more accurate diagnosis and assessment of the prognosis. En face OCT is widely used in ocular fundus diseases, such as macular epiretinal membrane, macular hole, macular edema, age-related macular degeneration and retinal vascular disease, glaucoma and neuro-ophthalmology. This article reviews the related concepts, principles and clinical applications of en face OCT. (Chin J Ophthalmol, 2017, 53: 956-960). PMID- 29325390 TI - Translation, Adaptation and Cross Language Validation of Tinnitus Handicap Inventory in Urdu. AB - BACKGROUND AND OBJECTIVES: Tinnitus is characterized as a perception of numerous auditory sounds in absence of external stimulus. Tinnitus can have a considerable consequence on a person's quality of life, and is considered to be very complicated to quantify. The aim of this study was to investigate the reliability and validity of Urdu translation of the Tinnitus Handicap Inventory (THI) in Pakistan. It was designed to assess the presence of various auditory sounds without the external stimulus. Scale consisted of 25 items having three subscales functional, emotional, and catastrophic. SUBJECTS AND METHODS: The study comprised into two stages, preliminary and main studies. The results of preliminary study revealed that the overall scale had high internal consistency [alpha coefficient of Urdu version of THI (THI-U)= 0.99, alpha coefficient of English version of THI=0.98]. The overall scale had test-retest correlation over a fifteen days period of interval (0.99). Main study was performed on 110 tinnitus patients. The results of main study showed that the internal consistency and reliability of Urdu version was (alpha=0.93). The THI-U and its subscales demonstrated good internal consistency reliability ( alpha =0.81 to 0.86). RESULTS: High to moderate correlations were noted between tinnitus symptom ratings. A confirmatory factor analysis was used to validate the three subscales of THI-U, and high inter-correlations were found between the subscales also results revealed that a three-factor model for the THI-U was most tenable. The results displayed that the confirmatory factor analysis confirmed to validate the three subscales of THI-U. CONCLUSION: THI-U might present important information about precise facets of tinnitus distress along with diagnostic interviews in clinical practice. PMID- 29325391 TI - Frequency-Limiting Effects on Speech and Environmental Sound Identification for Cochlear Implant and Normal Hearing Listeners. AB - BACKGROUND AND OBJECTIVES: It is important to understand the frequency region of cues used, and not used, by cochlear implant (CI) recipients. Speech and environmental sound recognition by individuals with CI and normal-hearing (NH) was measured. Gradients were also computed to evaluate the pattern of change in identification performance with respect to the low-pass filtering or high-pass filtering cutoff frequencies. SUBJECTS AND METHODS: Frequency-limiting effects were implemented in the acoustic waveforms by passing the signals through low pass filters (LPFs) or high-pass filters (HPFs) with seven different cutoff frequencies. Identification of Korean vowels and consonants produced by a male and female speaker and environmental sounds was measured. Crossover frequencies were determined for each identification test, where the LPF and HPF conditions show the identical identification scores. RESULTS: CI and NH subjects showed changes in identification performance in a similar manner as a function of cutoff frequency for the LPF and HPF conditions, suggesting that the degraded spectral information in the acoustic signals may similarly constraint the identification performance for both subject groups. However, CI subjects were generally less efficient than NH subjects in using the limited spectral information for speech and environmental sound identification due to the inefficient coding of acoustic cues through the CI sound processors. CONCLUSIONS: This finding will provide vital information in Korean for understanding how different the frequency information is in receiving speech and environmental sounds by CI processor from normal hearing. PMID- 29325392 TI - Horizontal Localization in Simulated Unilateral Hearing Loss. AB - BACKGROUND AND OBJECTIVES: The ability to localize a sound source is one of the binaural hearing benefits in a horizontal plane based on interaural time difference and interaural intensity difference. Unilateral or bilateral asymmetric hearing loss will affect binaural hearing and lead to sound locating errors. In this cross sectional analytical descriptive study, the localization error was investigated when participants turned their heads to the sound source with closed eyes and after simulating unilateral hearing loss by placing earplugs inside the right ear canal. SUBJECTS AND METHODS: This cross sectional analytical descriptive study was carried out on 30 right-handed adults, 22 female and 8 male (average: 25 years, standard deviation: 3.16). They were selected with the available random access method. Horizontal localization was evaluated with five speakers located at 0, +/-30, and +/-60 degree azimuths at a 1-meter distance from the examinee. Narrow-band noise signals were delivered at 35 dB SL in two "without earplug" and "with earplug" situations and the results were compared. The study was performed between September and December 2016 in Tehran, Iran. RESULTS: Significant differences were observed in localization errors between the "with earplug" and "without earplug" situations. The localization differences were greater for left-side speakers (-30 and -60 degrees) compared with right side speakers (+30 and +60 degrees). The differences were more apparent at 4,000 and 6,000 Hz, which confirmed the effect of unilateral simulated hearing loss on interaural latency differences. CONCLUSIONS: Simulating hearing loss by using an earplug in one ear (right) increased localization errors at all frequencies. The errors increased at higher frequencies. PMID- 29325393 TI - Role of Emotional Distress in Prolongation of Dizziness: A Cross-Sectional Study. AB - BACKGROUND AND OBJECTIVES: Dizziness is a common condition in outpatient clinics. Comorbid conditions such as anxiety and/or depression often complicate a patient's ability to cope with dizziness. The purpose of the present study was to explore the extent of psychiatric distress using the Hospital Anxiety and Depression Scale (HADS) and to compare the results with the subjective severity of dizziness. SUBJECTS AND METHODS: The cross-sectional study included a total of 456 consecutive patients presenting with acute (n=327) and chronic (n=127) dizziness symptoms. The HADS was used to estimate emotional distress and compare between patients with acute and chronic dizziness symptoms. Also, we calculated correlations between subjective dizziness handicap scores and emotional distress using the total and subscale scores of the Dizziness Handicap Inventory (DHI), Disability Scale (DS), and HADS. RESULTS: The HADS total and subscale scores were significantly increased in patients with chronic dizziness (p<0.01) compared with those with acute symptoms. In patients with symptoms of both acute and chronic dizziness, moderate correlations were evident between the DHI and HADS total scores. When we compared DHI subscale scores with the HADS scores, the emotional DHI subscale scores correlated more highly with the HADS total scores and the scores on the anxiety and depression subscales, than did the functional or physical DHI subscale scores. CONCLUSIONS: Increased levels of distress measured using the HADS in patients with chronic symptoms suggest that emotional status of the patients may contribute to prolongation of dizziness symptoms from the acute phase. PMID- 29325394 TI - Correction: Adverse effect of excess body weight on survival in cervical cancer patients after surgery and radiotherapy. AB - [This corrects the article on p. 48 in vol. 35.]. PMID- 29325395 TI - Controversial issues in radiotherapy for rectal cancer: a systematic review. AB - The role of radiotherapy (RT) as an adjuvant to surgical options in the treatment of locally advanced rectal cancer has been established as it reduces local recurrence when combined with surgical resection and enhances survival when used in multidisciplinary treatment. However, many issues need to be addressed; some of these can render RT unnecessary, whereas others can reveal a new role of RT in rectal cancer. This review will discuss not only the basic role of RT but also the associated but controversial issues in detail in an attempt to find answers and determine future directions for the next decade. PMID- 29325396 TI - Treatment results of radiotherapy following CHOP or R-CHOP in limited-stage head and-neck diffuse large B-cell lymphoma: a single institutional experience. AB - PURPOSE: This study evaluated outcomes of radiotherapy (RT) after chemotherapy in limited-stage head-and-neck diffuse large B-cell lymphoma (DLBCL). MATERIALS AND METHODS: Eighty patients who were treated for limited-stage head-and-neck DLBCL with CHOP (n = 43) or R-CHOP (n = 37), were analyzed. After chemotherapy, RT was administered to the extended field (n = 60) or the involved field (n = 16), or the involved site (n = 4). The median dose of RT ranged from 36 Gy in case of those with a complete response, to 45-60 Gy in those with a partial response. RESULTS: In all patients, the 5-year overall survival (OS) and disease-free survival (DFS) rates were 83.9% and 80.1%, respectively. In comparison with the CHOP regimen, the R-CHOP regimen showed a better 5-year DFS (86.5% vs. 73.9%, p = 0.027) and a lower rate of treatment failures (25.6% vs. 8.1%, p = 0.040). The volume (p = 0.047) and dose of RT (p < 0.001) were significantly reduced in patients treated with R-CHOP compared to that in those treated with CHOP. CONCLUSION: The outcomes of RT after chemotherapy with R-CHOP were better than those of CHOP regimen for limited-stage head-and-neck DLBCL. In patients treated with R-CHOP, a reduced RT dose and volume might be feasible without increasing treatment failures. PMID- 29325398 TI - Health Priorities in French-Speaking Swiss Cantons. AB - In Switzerland, the federal authorities, the cantons, and the communes share the responsibility of healthcare, disease prevention and health promotion policies. Yet, the cantons are in most health matters independent in their decisions, thus defining as a matter of fact their own health priorities. We examined and analysed the content of the disease prevention and health promotion plans elaborated during the last decade in six French-speaking cantons with different political contexts and resources, but quite similar population health data, in order to identify the set health priorities. The plans appear significantly inhomogeneous in their structure, scope and priorities. Most of the formal documents are short, in the 16 to 40 pages range. Core values such as equity, solidarity and sustainability are explicitly put forward in 2/6 cantonal plans. Priority health issues shared by all 6 cantons are "physical activity/sedentariness" and "nutrition/food." Mental health is explicitly mentioned in 5 cantonal plans, whereas tobacco and alcohol consumptions are mentioned 4 times. Less attention has been given to topics that appear as major public health challenges at present and in the future in Switzerland, eg, ageing of the population, rise of social inequalities, increase of vulnerable populations. Little attention has also been paid to issues like domestic violence or healthy work environments. Despite some heterogeneity, there is a common base that should make inter-cantonal collaborations possible and coordination with national strategies easily feasible. PMID- 29325399 TI - Evaluating the Process and Extent of Institutionalization: A Case Study of a Rapid Response Unit for Health Policy in Burkina Faso. AB - BACKGROUND: Good decision-making requires gathering and using sufficient information. Several knowledge translation platforms have been introduced in Burkina Faso to support evidence-informed decision-making. One of these is the rapid response service for health. This platform aims to provide quick access for policy-makers in Burkina Faso to highquality research evidence about health systems. The purpose of this study is to describe the process and extent of the institutionalization of the rapid response service. METHODS: A qualitative case study design was used, drawing on interviews with policy-makers, together with documentary analysis. Previously used institutionalization frameworks were combined to guide the analysis. RESULTS: Burkina Faso's rapid response service has largely reached the consolidation phase of the institutionalization process but not yet the final phase of maturity. The impetus for the project came from designated project leaders, who convinced policy-makers of the importance of the rapid response service, and obtained resources to run a pilot. During the expansion stage, additional policy-makers at national and sub-national levels began to use the service. Unit staff also tried to improve the way it was delivered, based on lessons learned during the pilot stage. The service has, however, stagnated at the consolidation stage, and not moved into the final phase of maturity. CONCLUSION: The institutionalization process for the rapid response service in Burkina Faso has been fluid rather than linear, with some areas developing faster than others. The service has reached the consolidation stage, but now requires additional efforts to reach maturity. PMID- 29325397 TI - Unequal Gain of Equal Resources across Racial Groups. AB - The health effects of economic resources (eg, education, employment, and living place) and psychological assets (eg, self-efficacy, perceived control over life, anger control, and emotions) are well-known. This article summarizes the results of a growing body of evidence documenting Blacks' diminished return, defined as a systematically smaller health gain from economic resources and psychological assets for Blacks in comparison to Whites. Due to structural barriers that Blacks face in their daily lives, the very same resources and assets generate smaller health gain for Blacks compared to Whites. Even in the presence of equal access to resources and assets, such unequal health gain constantly generates a racial health gap between Blacks and Whites in the United States. In this paper, a number of public policies are recommended based on these findings. First and foremost, public policies should not merely focus on equalizing access to resources and assets, but also reduce the societal and structural barriers that hinder Blacks. Policy solutions should aim to reduce various manifestations of structural racism including but not limited to differential pay, residential segregation, lower quality of education, and crime in Black and urban communities. As income was not found to follow the same pattern demonstrated for other resources and assets (ie, income generated similar decline in risk of mortality for Whites and Blacks), policies that enforce equal income and increase minimum wage for marginalized populations are essential. Improving quality of education of youth and employability of young adults will enable Blacks to compete for high paying jobs. Policies that reduce racism and discrimination in the labor market are also needed. Without such policies, it will be very difficult, if not impossible, to eliminate the sustained racial health gap in the United States. PMID- 29325400 TI - Eliminating Healthcare-Associated Infections in Iran: A Qualitative Study to Explore Stakeholders' Views. AB - BACKGROUND: Although preventable, healthcare-associated infections (HAIs) continue to pose huge health and economic burdens on countries worldwide. Some studies have indicated the numerous causes of HAIs, but only a tiny literature exists on the multifaceted measures that can be used to address the problem. This paper presents stakeholders' opinions on measures for controlling HAIs in Iran. METHODS: We used the qualitative research method in studying the phenomenon. Through a purposive sampling approach, we conducted 24 face-to-face interviews using a semi-structured interview guide. Participants were mainly key informants, including policy-makers, health professionals, and technical officers across the national and subnational levels, including the Ministry of Health (MoH), medical universities, and hospitals in Iran. We performed thematic framework analysis using the software MAXQDA10. RESULTS: Four main interdisciplinary themes emerged from our study of measures of controlling HAIs: strengthening governance and stewardship; strengthening human resources policies; appropriate prescription and usage of antibiotics; and environmental sanitation and personal hygiene. CONCLUSION: According to our findings, elimination of HAIs demands multifactorial interventions. While the ultimate recommendation of policy-makers is to have HAIs among the priorities of the national agenda, financial commitment and the creation of an enabling work environment in which both patients and healthcare workers can practice personal hygiene could lead to a significant reduction in HAIs in Iran. PMID- 29325401 TI - Performance-Based Financing to Strengthen the Health System in Benin: Challenging the Mainstream Approach. AB - BACKGROUND: Performance-based financing (PBF) is often proposed as a way to improve health system performance. In Benin, PBF was launched in 2012 through a World Bank-supported project. The Belgian Development Agency (BTC) followed suit through a health system strengthening (HSS) project. This paper analyses and draws lessons from the experience of BTC-supported PBF alternative approach - especially with regards to institutional aspects, the role of demand-side actors, ownership, and cost-effectiveness - and explores the mechanisms at stake so as to better understand how the "PBF package" functions and produces effects. METHODS: An exploratory, theory-driven evaluation approach was adopted. Causal mechanisms through which PBF is hypothesised to impact on results were singled out and explored. This paper stems from the co-authors' capitalisation of experiences; mixed methods were used to collect, triangulate and analyse information. Results are structured along Witter et al framework. RESULTS: Influence of context is strong over PBF in Benin; the policy is donor-driven. BTC did not adopt the World Bank's mainstream PBF model, but developed an alternative approach in line with its HSS support programme, which is grounded on existing domestic institutions. The main features of this approach are described (decentralised governance, peer review verification, counter-verification entrusted to health service users' platforms), as well as its adaptive process. PBF has contributed to strengthen various aspects of the health system and led to modest progress in utilisation of health services, but noticeable improvements in healthcare quality. Three mechanisms explaining observed outcomes within the context are described: comprehensive HSS at district level; acting on health workers' motivation through a complex package of incentives; and increased accountability by reinforcing dialogue with demand-side actors. Cost-effectiveness and sustainability issues are also discussed. CONCLUSION: BTC's alternative PBF approach is both promising in terms of effects, ownership and sustainability, and less resource consuming. This experience testifies that PBF is not a uniform or rigid model, and opens the policy ground for recipient governments to put their own emphasis and priorities and design ad hoc models adapted to their context specificities. However, integrating PBF within the normal functioning of local health systems, in line with other reforms, is a big challenge. PMID- 29325402 TI - Assessing Patient Organization Participation in Health Policy: A Comparative Study in France and Italy. AB - BACKGROUND: Even though there are many patient organizations across Europe, their role in impacting health policy decisions and reforms has not been well documented. In line with this, the present study endeavours to fill this gap in the international literature. To this end, it aims to validate further a previously developed instrument (the Health Democracy Index - HDI) measuring patient organization participation in health policy decision-making. In addition, by utilizing this tool, it aims to provide a snapshot of the degree and impact of cancer patient organization (CPO) participation in Italy and France. METHODS: A convenient sample of 188 members of CPOs participated in the study (95 respondents from 10 CPOs in Italy and 93 from 12 CPOs in France). Participants completed online a self-reported questionnaire, encompassing the 9-item index and questions enquiring about the type and impact of participation in various facets of health policy decisionmaking. The psychometric properties of the scale were explored by performing factor analysis (construct validity) and by computing Cronbach alpha (internal consistency). RESULTS: Findings indicate that the index has good internal consistency and the construct it taps is unidimensional. The degree and impact of CPO participation in health policy decision-making were found to be low in both countries; however in Italy they were comparatively lower than in France. CONCLUSION: In conclusion, the HDI can be effectively used in international policy and research contexts. CPOs participation is low in Italy and France and concerted efforts should be made on upgrading their role in health policy decision-making. PMID- 29325403 TI - Economic Inequality in Presenting Vision in Shahroud, Iran: Two Decomposition Methods. AB - BACKGROUND: Visual acuity, like many other health-related problems, does not have an equal distribution in terms of socio-economic factors. We conducted this study to estimate and decompose economic inequality in presenting visual acuity using two methods and to compare their results in a population aged 40-64 years in Shahroud, Iran. METHODS: The data of 5188 participants in the first phase of the Shahroud Cohort Eye Study, performed in 2009, were used for this study. Our outcome variable was presenting vision acuity (PVA) that was measured using LogMAR (logarithm of the minimum angle of resolution). The living standard variable used for estimation of inequality was the economic status and was constructed by principal component analysis on home assets. Inequality indices were concentration index and the gap between low and high economic groups. We decomposed these indices by the concentration index and BlinderOaxaca decomposition approaches respectively and compared the results. RESULTS: The concentration index of PVA was -0.245 (95% CI: -0.278, -0.212). The PVA gap between groups with a high and low economic status was 0.0705 and was in favor of the high economic group. Education, economic status, and age were the most important contributors of inequality in both concentration index and Blinder Oaxaca decomposition. Percent contribution of these three factors in the concentration index and Blinder-Oaxaca decomposition was 41.1% vs. 43.4%, 25.4% vs. 19.1% and 15.2% vs. 16.2%, respectively. Other factors including gender, marital status, employment status and diabetes had minor contributions. CONCLUSION: This study showed that individuals with poorer visual acuity were more concentrated among people with a lower economic status. The main contributors of this inequality were similar in concentration index and Blinder Oaxaca decomposition. So, it can be concluded that setting appropriate interventions to promote the literacy and income level in people with low economic status, formulating policies to address economic problems in the elderly, and paying more attention to their vision problems can help to alleviate economic inequality in visual acuity. PMID- 29325404 TI - Recent Iranian Health System Reform: An Operational Perspective to Improve Health Services Quality. AB - The operational management of healthcare services is expected to directly touch patient experiences. Iranian Ministry of Health and Medical Education (MoHME) for the first time, as such, has sought to improve the operational management of healthcare delivery within a reform agenda by setting benchmarks for 'number of visit per hour' and waiting time in outpatient clinics of about 700 affiliated hospitals. As a new initiative, it has faced with mixed reactions and various doubts have been cast on its successful implementation. This manuscript aims to shed some light on the operational challenges of the initiative and the requirements of its successful implementation. PMID- 29325405 TI - WHO FCTC as a Pioneering and Learning Instrument Comment on "The Legal Strength of International Health Instruments - What It Brings to Global Health Governance?" AB - The World Health Organization (WHO) Framework Convention on Tobacco Control (FCTC) is a unique global health instrument, since it is in the health field the only instrument that is international law. After the 10 years of its existence an Independent Expert Group assessed the impact of the FCTC using all available data and visiting a number of countries interviewing different stakeholders. It is quite clear that the Treaty has acted as a strong catalyst and framework for national actions and that remarkable progress in global tobacco control can be seen. At the same time FCTC has moved tobacco control in countries from a pure health issue to a legal responsibility of the whole government, and on the international level created stronger interagency collaboration. The assessment also showed the many challenges. The spread of tobacco use, as well as of other risk lifestyles, is related to globalization. FCTC is a pioneering example of global action to counteract the negative social consequences of globalization. A convention is not an easy instrument, but the FCTC has undoubtedly sparked thinking and development of other stronger public health instruments and of needed governance structures. PMID- 29325406 TI - Polycentrism in Global Health Governance Scholarship Comment on "Four Challenges That Global Health Networks Face". AB - Drawing on an in-depth analysis of eight global health networks, a recent essay in this journal argued that global health networks face four challenges to their effectiveness: problem definition, positioning, coalition-building, and governance. While sharing the argument of the essay concerned, in this commentary, we argue that these analytical concepts can be used to explicate a concept that has implicitly been used in global health governance scholarship for quite a few years. While already prominent in the discussion of climate change governance, for instance, global health governance scholarship could make progress by looking at global health governance as being polycentric. Concisely, polycentric forms of governance mix scales, mechanisms, and actors. Drawing on the essay, we propose a polycentric approach to the study of global health governance that incorporates coalitionbuilding tactics, internal governance and global political priority as explanatory factors. PMID- 29325407 TI - The Bright Elusive Butterfly of Value in Health Technology Development Comment on "Providing Value to New Health Technology: The Early Contribution of Entrepreneurs, Investors, and Regulatory Agencies". AB - The current system of health technology development is characterised by multiple misalignments. The "supply" side (innovation policy-makers, entrepreneurs, investors) and the "demand" side (health policy-makers, regulators, health technology assessment, purchasers) operate under different - and conflicting - logics. The system is less a "pathway" than an unstable ecosystem of multiple interacting sub-systems. "Value" means different things to each of the numerous actors involved. Supply-side dynamics are built on fictions; regulatory checks and balances are designed to assure quality, safety and efficacy, not to ensure that technologies entering the market are either desirable or cost-effective. Assessment of comparative and cost-effectiveness usually comes too late in the process to shape an innovation's development. We offer no simple solutions to these problems, but in the spirit of commencing a much-needed public debate, we suggest some tentative ways forward. First, universities and public research funders should play a more proactive role in shaping the system. Second, the role of industry in forging long-term strategic partnerships for public benefit should be acknowledged (though not uncritically). Third, models of "responsible innovation" and public input to research priority-setting should be explored. Finally, the evidence base on how best to govern inter-sectoral health research partnerships should be developed and applied. PMID- 29325408 TI - Priority Setting: Right Answer to a Far Too Narrow Question? Comment on "Global Developments in Priority Setting in Health". AB - In their recent editorial, Baltussen and colleagues provide a concise summary of the prevailing discourse on priority-setting in health policy. Their perspective is entirely consistent with current practice, yet they unintentionally demonstrate the narrowness and moral precariousness of that discourse and practice. I respond with demonstrations of the importance of 'interrogating scarcity' in a variety of contexts. PMID- 29325409 TI - All Health Partnerships, Great and Small: Comparing Mandated With Emergent Health Partnerships Comment on "Evaluating Global Health Partnerships: A Case Study of a Gavi HPV Vaccine Application Process in Uganda". AB - The plurality of healthcare providers and funders in low- and middle-income countries (LMICs) has given rise to an era in which health partnerships are becoming the norm in international development. Whether mandated or emergent, three common drivers are essential for ensuring successful health partnerships: trust; a diverse and inclusive network; and a clear governance structure. Mandated and emergent health partnerships operate as very different models and at different scales. However, there is potential for sharing and learning between these types of partnerships. Emergent health partnerships, especially as they scale up, may learn from mandated partnerships about establishing clear governance mandates for larger and more complex partnerships. By combining social network analysis, which can detect key actors and stakeholders that could add value to existing emergent partnerships, with Brinkerhoff 's comprehensive framework for partnership evaluation, we can identify a set of tools that could be used to evaluate the effectiveness and sustainability of emergent health partnerships. PMID- 29325410 TI - Personalisation - An Emergent Institutional Logic in Healthcare? Comment on "(Re) Making the Procrustean Bed? Standardization and Customization as Competing Logics in Healthcare". AB - This commentary on the recent think piece by Mannion and Exworthy reviews their core arguments, highlighting their suggestion that recent forces for personalization have emerged which may counterbalance the strong standardization wave which has been evident in many healthcare settings and systems over the last two decades. These forces for personalization can take very different forms. The commentary explores the authors' suggestion that these themes can be fruitfully examined theoretically through an institutional logics (ILs) literature, which has recently been applied by some scholars to healthcare settings. This commentary outlines key premises of that theoretical tradition. Finally, the commentary makes suggestions for taking this IL influenced research agenda further, along with some issues to be addressed. PMID- 29325411 TI - Evidence-Informed Deliberative Processes - Early Dialogue, Broad Focus and Relevance: A Response to Recent Commentaries. PMID- 29325412 TI - Water-Assisted Hole Trapping at the Highly Curved Surface of Nano-TiO2 Photocatalyst. AB - Heterogeneous photocatalysis is vital in solving energy and environmental issues that this society is confronted with. Although photocatalysts are often operated in the presence of water, it has not been yet clarified how the interaction with water itself affects charge dynamics in photocatalysts. Using water-coverage controlled steady and transient infrared absorption spectroscopy and large-model (~800 atoms) ab initio calculations, we clarify that water enhances hole trapping at the surface of TiO2 nanospheres but not of well-faceted nanoparticles. This water-assisted effect unique to the nanospheres originates from water adsorption as a ligand at a low-coordinated Ti-OH site or through robust hydrogen bonding directly to the terminal OH at the highly curved nanosphere surface. Thus, the interaction with water at the surface of nanospheres can promote photocatalytic reactions of both oxidation and reduction by elongating photogenerated carrier lifetimes. This morphology-dependent water-assisted effect provides a novel and rational basis for designing and engineering nanophotocatalyst morphology to improve photocatalytic performances. PMID- 29325413 TI - Direct Detection of Hardly Detectable Hidden Chirality of Hydrocarbons and Deuterated Isotopomers by a Helical Polyacetylene through Chiral Amplification and Memory. AB - We report the first direct chirality sensing of a series of chiral hydrocarbons and isotopically chiral compounds (deuterated isotopomers), which are almost impossible to detect by conventional optical spectroscopic methods, by a stereoregular polyacetylene bearing 2,2'-biphenol-derived pendants. The polyacetylene showed a circular dichroism due to a preferred-handed helix formation in response to the hardly detectable hidden chirality of saturated tertiary or chiroptical quaternary hydrocarbons, and deuterated isotopomers. In sharp contrast to the previously reported sensory systems, the chirality detection by the polyacetylene relies on an excess one-handed helix formation induced by the chiral hydrocarbons and deuterated isotopomers via significant amplification of the chirality followed by its static memory, through which chiral information on the minute and hidden chirality can be stored as an excess of a single-handed helix memory for a long time. PMID- 29325414 TI - Molecular Dynamics of Photoinduced Reactions of Acrylic Acid: Products, Mechanisms, and Comparison with Experiment. AB - The photochemistry of acrylic acid is of considerable atmospheric importance. However, the mechanisms and the time scales of the reactions involved are unknown. In this work, the products, yields, and reaction pathways of acrylic acid photochemistry are investigated theoretically by molecular dynamics simulations on the pipi* excited state. Two methods were used to describe the excited state: the semiempirical OM2/MRCI and the ab initio ADC(2). Over 100 trajectories were computed with each method. A rich variety of reaction channels including mechanisms, time scales, and yields are predicted for the single potential energy surface used. Main findings include: (1) Products predicted by the calculations are in good agreement with experiments; (2) ADC(2) seems to validate OM2/MRCI predictions on main aspects of mechanisms, but not on time scales. It is concluded that both semiempirical and ab initio molecular dynamics simulations have useful advantages for the description of photochemical dynamics of carboxylic acids. PMID- 29325415 TI - Recrystallization of Manganite (gamma-MnOOH) and Implications for Trace Element Cycling. AB - The recrystallization of Mn(III,IV) oxides is catalyzed by aqueous Mn(II) (Mn(II)aq) during (bio)geochemical Mn redox cycling. It is poorly understood how trace metals associated with Mn oxides (e.g., Ni) are cycled during such recrystallization. Here, we use X-ray absorption spectroscopy (XAS) to examine the speciation of Ni associated with Manganite (gamma-Mn(III)OOH) suspensions in the presence or absence of Mn(II)aq under variable pH conditions (pH 5.5 and 7.5). In a second set of experiments, we used a 62Ni isotope tracer to quantify the amount of dissolved Ni that exchanges with Ni incorporated in the Manganite crystal structure during reactions in 1 mM Mn(II)aq and in Mn(II)-free solutions. XAS spectra show that Ni is initially sorbed on the Manganite mineral surface and is progressively incorporated into the mineral structure over time (13% after 51 days) even in the absence of dissolved Mn(II). The amount of Ni incorporation significantly increases to about 40% over a period of 51 days when Mn(II)aq is present in solution. Similarly, Mn(II)aq promotes Ni exchange between Ni substituted Manganite and dissolved Ni(II), with around 30% of Ni exchanged at pH 7.5 over the duration of the experiment. No new mineral phases are detected following recrystallization as determined by X-ray diffraction and XAS. Our results reveal that Mn(II)-catalyzed mineral recrystallization partitions Ni between Mn oxides and aqueous fluids and can therefore affect Ni speciation and mobility in the environment. PMID- 29325416 TI - IgY Reduces AFB1-Induced Cytotoxicity, Cellular Dysfunction, and Genotoxicity in Human L-02 Hepatocytes and Swan 71 Trophoblasts. AB - Aflatoxin B1 (AFB1) causes hepatotoxic, genotoxic, and immunotoxic effects in a variety of species. Although various neutralizing agents of AFB1 toxicity have been studied, the egg yolk immunoglobulin (IgY) detoxification of small molecular toxins and the mechanisms underlying such effects have not yet been reported. In this investigation, anti-AFB1 IgY against AFB1 was successfully raised, and a competitive indirect enzyme-linked immunosorbent assay was established with a sensitive half-maximal inhibitory concentration (IC50, 2.4 ng/mL) and dynamic working range (0.13-43.0 ng/mL). The anti-AFB1 IgY obtained reduced AFB1-induced cytotoxicity, cellular dysfunction, and genotoxicity by protecting cells against apoptotic body formation and DNA strand breaks, preventing G2/M phase cell cycle arrest, reducing AFB1-DNA adduct and reactive oxygen species production and maintaining cell migration and invasion and the mitochondrial membrane potential. Anti-AFB1 IgY significantly inhibited the AFB1-induced expression of proteins related to antioxidative, pro-apoptotic, and antiapoptotic processes in a strong dose-dependent manner. These experiments demonstrated that the anti-AFB1 IgY bound AFB1 could not enter cells. This is the first time that IgY has been found to reduce the effects of small molecular toxins, which will be beneficial for the development of antibodies as detoxication agents. PMID- 29325418 TI - The Human Microbiome. PMID- 29325417 TI - Rhubarb Supplementation Promotes Intestinal Mucosal Innate Immune Homeostasis through Modulating Intestinal Epithelial Microbiota in Goat Kids. AB - The abuse and misuse of antibiotics in livestock production pose a potential health risk globally. Rhubarb can serve as a potential alternative to antibiotics, and several studies have looked into its anticancer, antitumor, and anti-inflammatory properties. The aim of this study was to test the effects of rhubarb supplementation to the diet of young ruminants on innate immune function and epithelial microbiota in the small intestine. Goat kids were fed with a control diet supplemented with or without rhubarb (1.25% DM) and were slaughtered at days 50 and 60 of age. Results showed that the supplementation of rhubarb increased ileal villus height (P = 0.036), increased jejujal and ileal anti inflammatory IL-10 production (P < 0.05), increased jejunal and ileal Claudin-1 expression at both mRNA and protein levels (P < 0.05), and decreased ileal pro inflammatory IL-1beta production (P < 0.05). These changes in innate immune function were accompanied by shifts in ileal epithelial bacterial ecosystem in favor of Blautia, Clostridium, Lactobacillus, and Pseudomonas, and with a decline in the relative abundance of Staphylococcus (P < 0.001) when rhubarb was supplemented. Additionally, age also affected (P < 0.05) crypt depth, cytokine production, Claudin-1 expression and relative abundances of specific genera in epithelial bacteria. Collectively, the supplementation of rhubarb could enhance host mucosal innate immune homeostasis by modulating intestinal epithelial microbiota during the early stages of animal development. PMID- 29325419 TI - A new method of infrared-fluorescence-enhanced thoracoscopic segmentectomy. AB - Optimal identification of the intersegmental plane can be challenging during thoracoscopic anatomical segmentectomy for lung cancer. We describe a simple new method of infrared-fluorescence-enhanced thoracoscopy with selected injection of indocyanine green into the bronchi not targeted for resection, which allows us to clearly identify the intersegmental plane in thoracoscopic segmentectomy. PMID- 29325420 TI - Adolescent and caregivers' experiences of electronic adherence assessment in paediatric problematic severe asthma. AB - This study explored the experiences of adolescents and their caregivers regarding adherence to inhaled corticosteroids which are assessed through an electronic monitoring device (EMD). These devices are increasingly being used for assessing medication adherence, yet there is little information about patient's experience of these tools. Semi-structured interviews were conducted with eight adolescents with severe asthma, aged 11-15 years, who were electronically monitored as part of their care, along with their caregivers. Interviews were analysed using thematic analysis. Three themes were identified: 'they were trying to help me get better', 'checking up and catching out' and 'who is responsible?' The themes highlighted differences in priorities between participant groups, the impact of monitoring on the healthcare relationship and the dilemma of transferring responsibility for asthma management to adolescents. The findings suggest it is important for healthcare professionals to engage with patient's preferences and priorities when introducing EMDs. PMID- 29325421 TI - Effects of underwater bubble CPAP on very-low-birth-weight preterm newborns in the delivery room and after transport to the neonatal intensive care unit. AB - The development of less invasive ventilatory strategies in very-low-birth-weight (VLBW) preterm newborns has been a growing concern in recent decades. This study aimed to measure differences in the clinical progression of preterm newborns using two distinct periods in a university hospital: before and after using underwater bubble continuous positive airway pressure (ubCPAP). This is a retrospective study of VLBW preterm newborns with gestational ages less than or equal to 32 weeks admitted to the neonatal intensive care unit. The time series was divided into two groups: a pre-CPAP group ( n = 45) and a post-CPAP group ( n = 40). The post-CPAP group had fewer resuscitations, required fewer surfactant doses, spent fewer days on mechanical ventilation, and demonstrated less of a need for fraction of inspired oxygen > 30%. UbCPAP is an easy to use, minimally invasive, and effective ventilatory strategy for VLBW preterm newborns that can be used in environments with limited resources. Thus, adopting this simple strategy as part of a service organization and health policy can positively impact outcomes. PMID- 29325423 TI - Early Functional, Radiological Outcomes and Satisfaction Rates of Total Ankle Arthroplasty in an Asian Population. AB - BACKGROUND: Few studies have outlined the outcomes and complications in Asians undergoing total ankle arthroplasty. This study reports the functional, radiological outcomes and satisfaction rates in our Asian population. METHODS: Patients who underwent primary total ankle arthroplasty from 2007 to 2013 were recruited. Outcomes evaluated were the AOFAS Ankle-Hindfoot Score (AHS), Visual Analogue Scale (VAS), and the Short Form 36 (SF-36)questionnaire. Outcome scores were collected prospectively up to 2 years. Patient satisfaction was evaluated on a 6-point scale based on North American Spine Society Low Back Pain Instrument and classified as satisfied or unsatisfied. RESULTS: Forty-one patients underwent primary total ankle arthroplasty. All patients experienced improvements in AHS, VAS, and Mental Component Summary score of the SF-36 at both 6-month and 2-year postoperative interval. The mean AHS score improved from 35 +/- 19 points preoperatively to 64 +/- 24 at 6 months (P<.001) and 72 +/- 26 at 24 months (P <.001). VAS scores improved from 7 +/- 2 preoperatively to 3 +/- 3 (P < .001) at 6 and 24 months. The Physical Component Summary (PCS) of the SF-36 has an established minimum clinically important difference (MCID) of 5. The mean improvement in PCS in our cohort met this MCID for the PCS; 63% and 71% of patients were satisfied with the procedure at 6 months and 2 years postoperatively, respectively. Revision rate in this series was 9.7%. CONCLUSION: Total ankle arthroplasty has good patient satisfaction rates, with favorable early clinical outcome in Asian patients. LEVELS OF EVIDENCE: Therapeutic, Level II. PMID- 29325422 TI - Outcomes in Deep Inferior Epigastric Perforator Flap and Implant-Based Reconstruction: Does Age Really Matter? AB - Despite the growing elderly population, there is limited research specific to this demographic concerning breast reconstruction (BR). Lack of evidence-based BR recommendations in older populations may contribute to misconceptions and subsequent underutilization of BR, especially autologous BR. Patients who received either deep inferior epigastric perforator (DIEP) flap BR or tissue expander/implant (TE/I) BR by a single surgeon between July 2011 and July 2015 were surveyed postoperatively by using the psychometrically validated BREAST-Q questionnaire to determine patient satisfaction. Patients were categorized into younger and older cohorts based on median age (55 years) and further stratified based on the type of reconstruction. Of the 311 patients surveyed, 95 patients responded (31% response rate). Overall, younger patients (<55 years old, n = 42) compared with older patients (>=55 years old, n = 53) had significantly higher satisfaction with their outcome (mean difference [MD] 12.06; 95% confidence interval [CI]: 0.96-23.15; P = 0.034). In the TE/I group (n = 58), younger patients had significantly higher satisfaction with breasts (MD: 14.17; 95% CI: 2.58-25.75; P = .017) and outcome (MD: 18.25; 95% CI: 3.95-32.5; P = .010) with fewer complications (odds ratio [OR]: 3.29; 95% CI: 1.37-7.86; P = .010). In the DIEP flap group (n = 55), there was no significant difference inr any of the satisfaction outcomes between younger and older patients. Younger patients tend to be more satisfied and demonstrate fewer complications with implant-based BR. In contrast, both younger and older patients undergoing abdominally based autologous BR were equally satisfied with comparable outcomes. PMID- 29325424 TI - Immediate Weight Bearing After Hallux Valgus Correction Using Locking Plate Fixation of the Ludloff Osteotomy: A Retrospective Review. AB - BACKGROUND: A Ludloff osteotomy is a common procedure used to correct hallux valgus deformities. Traditionally, the osteotomy is stabilized with screws only, thus requiring the patient to be non-weight bearing until healed. There have been no outcome studies analyzing immediate weight bearing after Ludloff osteotomy for hallux valgus. METHODS: Of the 350 patients (390 feet) who underwent a Ludloff osteotomy fixed with a locking plate and prescribed an immediate weight-bearing postoperative protocol, 288 patients (326 feet) were included in the analysis. Average radiographic follow-up was 8 months, and hallux-valgus angle (HVA), intermetatarsal angle (IMA), and any hardware failures or hypertrophic callus formation were recorded. The Foot Function Index (FFI) was assessed in 103 patients at an average of 44 months postoperatively. RESULTS: Average IMA and HVA correction were 7.6 degrees and 21.6 degrees , respectively (P < .0001). Loss of HVA and IMA correction of 4.6 degrees and 2.3 degrees , respectively, were noted between the initial postoperative films and final weight-bearing films. The average FFI score calculated for the 103 respondents was 10.4 out of a possible 100, indicating relatively low pain and disability. Complication rates were consistent with most other published postoperative protocols, with the most commonly seen being superficial infection (4.9%) and symptomatic hardware (4.6%). CONCLUSION: An immediate weight-bearing protocol for Ludloff osteotomies fixed with locking plates results in recurrence rates that are similar to those found with other protocols. Patient function is quite high and pain low following this protocol. The most commonly observed complications were superficial infection and symptomatic hardware requiring removal. LEVELS OF EVIDENCE: Level IV. PMID- 29325425 TI - Meningitis Vaccination, Knowledge, and Awareness Among YMSM in Chicago. AB - Serogroup C invasive meningococcal disease (IMD) outbreaks in men who have sex with men (MSM) have been occurring with greater frequency in urban areas across the United States. An effective vaccine for IMD is available and is recommended for MSM in outbreak settings. Particular subgroups of MSM have been disproportionately represented in outbreaks, specifically young, Black, and HIV positive MSM. As little is known about the knowledge, awareness, and vaccination status of young MSM, we sought to describe this and explore racial/ethnic differences. Data were collected from an established cohort study-RADAR-of 16- to 29-year-old MSM recruited through previous cohort studies and/or by being a partner or peer of a current study member. A total of 486 young MSM (YMSM) responded to 13 IMD-related questions. Approximately half of the sample correctly identified how IMD is spread and 58.6% accurately responded that vaccination was the best prevention method; however, more than 60% of participants felt they were at no risk of getting meningitis and only 49% self-reported vaccination. Additionally, White YMSM were significantly more likely to be vaccinated and to have accurate knowledge and risk perception of IMD compared with Black YMSM. Findings have important implications for disease control, outbreak management, and intervention development. PMID- 29325426 TI - Naturally Occurring Mutations in HIV-1 CRF01_AE Capsid Affect Viral Sensitivity to Restriction Factors. AB - TRIM5alpha and MxB are known as restriction factors that inhibit the early step of intracellular HIV-1 replication cycle. Both factors are believed to interact with the incoming virus core to suppress HIV-1 infection. The extreme diversity of HIV-1 is thought to be a consequence of its propensity to mutate to escape immune responses and host restriction factors. We recently determined the capsid sequences for 144 HIV-1 CRF01_AE viruses obtained in Thailand from 2005 to 2011. In this study, we further analyzed the amino acid variations among the capsid sequences of 204 HIV-1 CRF01_AE obtained in Thailand and China, including 84 of the aforementioned 144 viruses, to detect mutations permitting escape from restriction by host factors. We found a characteristic combination of E79D, V83T, and H87Q in sequences from Chinese viruses and subsequently showed that this combination conferred partial resistance to MxB. Interestingly, this combination conferred resistance to human TRIM5alpha as well. The H87Q mutation alone conferred resistance to MxB in the CRF01_AE background, but not in subtype B virus. In contrast, the H87Q mutation alone conferred resistance to human TRIM5alpha in both the CFR01_AE and subtype B backgrounds. BLAST analysis revealed the presence of the E79D, V83T, and H87Q combination in CRF01_AE viruses isolated not only in China but also in many other countries. Although the mechanistic details as well as precise role of MxB antiviral activity in infected individuals remain to be clarified, our data suggest an interaction between MxB and the HIV-1 capsid in vivo. PMID- 29325428 TI - Mother-Child Coregulation of Parasympathetic Processes Differs by Child Maltreatment Severity and Subtype. AB - Parasympathetic processes appear to underlie maladaptive parent-child interactions in maltreating families, but it is unknown whether parent-child coregulation of respiratory sinus arrhythmia (RSA) differs by child maltreatment severity and subtype. RSA coregulation in maltreating and nonmaltreating mother child dyads ( N = 146; age 3-5 years) during two dyadic tasks was analyzed using dynamic time series modeling. Nonmaltreating dyads showed positive RSA concordance but maltreating dyads (when examined as one group) did not. However, when examined separately by subtype, physically abusive dyads showed positive concordance and neglectful dyads no concordance, in dyadic RSA. Patterns were further modified by maltreatment severity, which predicted discordant RSA (one partner's RSA predicting decreases in the other's) in both groups. Specifically, higher physical abuse severity predicted lower resting child RSA, declining mother RSA over time, and mother RSA predicting declines in child RSA over time, suggesting a mother-driven dyadic stress response. Higher neglect severity predicted increasing child RSA over time and child RSA predicting declines in mother RSA over time, suggesting a child-driven maternal stress response. These findings show there are distinct patterns of RSA coregulation in nonmaltreating, physically abusive, and neglectful mother-child dyads, which may inform etiology and intervention with respect to stress regulation in maltreating families. PMID- 29325429 TI - A Novel Method for Repositioning Suboptimally Preoperatively Placed Nephrostomy Tubes for Percutaneous Nephrolithotomy Without Renal Repuncture. AB - OBJECTIVE: Nephrostomy tubes (NTs) inserted in emergency settings by interventional radiologists are frequently unsuitable for subsequent percutaneous nephrolithotomy (PCNL). We report a novel method of adjusting these NTs to be used as PCNL tracts and avoid renal repuncture. PATIENTS AND METHODS: A retrospective search of 981 consecutive PCNLs performed in our institution between 2002 and 2017 identified all patients with preoperatively inserted NTs. The NTs unsuitable for PCNL were adjusted by a novel approach in which a 5-mm incision was made at the ideal puncture location (IPL) as indicated under fluoroscopic guidance. The preinserted NT was removed after passing a guidewire into the kidney. A dissector clamp was introduced through the entry wound of the removed NTs to bluntly dissect a retroperitoneal tunnel and pull out the distal tip of guidewire through the IPL, while its proximal segment was maintained in the kidney. The newly positioned guidewire was used for PCNL tract preparation without repuncturing the kidney. RESULTS: The NTs were located in the mid calix, lower calix, and renal pelvis in 6 (26%), 13 (57%), and 4 (17%) cases, respectively. The NT was suitable for PCNL in 5 (22%) cases, a new renal access was performed in 3 (13%), and the novel adjustment approach was used in 15 (65%), all successfully. The place of entry was moved an average of 6 cm (range 47) and the angle between the tract axis and the calix axis was reduced by 65 degrees in average. The procedure was done uneventfully in an average of 4 minutes. CONCLUSIONS: The novel method of adjusting preoperatively inserted NTs for PCNL by repositioning their original entry location to the IPL offers the possibility of avoiding kidney repuncture. It is feasible, safe, and easy to implement, and it spares potential morbidity related to additional puncturing of the kidney. PMID- 29325427 TI - A Randomized Trial of Home Visitation for CPS-Involved Families: The Moderating Impact of Maternal Depression and CPS History. AB - Home visitation (HV) interventions may hold promise to improve parenting and prevent child maltreatment recidivism in families reported to child protective services (CPS) with young children, but this has rarely been studied. Findings are presented from an 18-month randomized controlled trial in which intact families ( N = 122) with at least one CPS report were provided with a facilitated connection to a paraprofessional evidence-based HV program or usual care services from child protection. Results are reported for changes in maternal stress, depression, and social support outcomes and repeat reports to CPS. No significant changes were found in maternal outcomes by group. Among nondepressed mothers or families without multiple CPS reports prior to study enrollment, HV was associated with a significantly lower likelihood of CPS report recidivism. These results indicate potential for HV to prevent maltreatment recidivism but suggest that higher intensity intervention is warranted for mothers exhibiting significant depressive symptoms or families with extensive CPS histories. PMID- 29325431 TI - Persons living with diagnosed HIV in New York City: over 50% over 50 years old. AB - Using NYC HIV surveillance data, we estimated the annual median age of persons living with diagnosed HIV (PLWDH) and the proportion of PLWDH over 50 years old in NYC between 2008 and 2015, and described the characteristics, retention in care and viral suppression status among PLWDH in NYC in 2015, by age (<50 vs. >=50 years old). The median age of PLWDH in NYC increased from 46.4 years (interquartile range [IQR]: 39.4, 53.2) in 2008 to 50.2 years (IQR: 39.8, 57.5) in 2015, and the proportion of PLWDH over 50 years old increased from 35.9% in 2008 to 50.6% in 2015. In 2015, by race/ethnicity, whites had the highest proportion over 50 years old (57.0%) and Asian/Pacific Islanders had the lowest (36.2%); by transmission risk, men who have sex with men were the lowest (40.0%) and injection drug users were the highest (76.1%). A large and increasing proportion of PLWDH over 50 years old presents challenges for HIV-infected individuals and healthcare system. Better social support services for HIV infected individuals and additional training for medical and public health staff are needed. PMID- 29325432 TI - Risk Factors for Primary Failure of Metallic Ureteral Stents: Experience from a Tertiary Center. AB - INTRODUCTION: We provide primary patency rate of metallic ureteral stents in cancer patients and investigate the factors affecting primary patency. METHODS: All cancer patients who had received metallic stents for malignant ureteral obstruction between July 2009 and November 2012 in our institute were included. No patients were excluded. Patient profiles, imaging studies, and laboratory data were collected. Patient profiles included age, gender, body height, body weight, body mass index, cancer types, treatment for cancer, response to cancer treatment, methods of stent insertion, and prior ordinary stents. Imaging studies included renal ultrasonography, antegrade pyelography, CT, and MRI. Laboratory data included urinalysis, urine culture, and serum creatinine. Complications were defined according to the Clavien-Dindo classification. Primary patency was defined as a complete resolution or downgrading of hydronephrosis shown by imaging studies or success in the removal of a preexisting nephrostomy tube; otherwise the procedure was considered a primary failure. The primary endpoint was the primary patency rate of the stents. The secondary endpoints were risk factors for primary stent failure. RESULTS: A total of 124 stents were inserted into 96 patients with malignant ureteral obstruction. There were no grade 3/4 complications. The overall primary patency rate was 87.9% (109/124). In univariate analysis, antegrade insertion (OR = 24.15, p-value = 0.0086) and urinary tract cancer (OR = 4.18, p-value = 0.0164) were significantly associated with primary failure. Those with prior ordinary stents (OR = 0.20, p-value = 0.0158) or response to cancer treatment (OR = 0.25, p-value = 0.0228) were associated with stent patency. In multivariate analysis, antegrade insertion (OR = 22.04, p-value = 0.0041) and response to cancer treatment (OR = 0.15, p-value = 0.01081) remained significant factors. CONCLUSIONS: In this large cohort of cancer patients requiring urinary diversion to preserve renal function, several factors were associated with the success rate of metallic stents. PMID- 29325430 TI - Rapid and Sensitive Assessment of Globin Chains for Gene and Cell Therapy of Hemoglobinopathies. AB - The beta-hemoglobinopathies sickle cell anemia and beta-thalassemia are the focus of many gene-therapy studies. A key disease parameter is the abundance of globin chains because it indicates the level of anemia, likely toxicity of excess or aberrant globins, and therapeutic potential of induced or exogenous beta-like globins. Reversed-phase high-performance liquid chromatography (HPLC) allows versatile and inexpensive globin quantification, but commonly applied protocols suffer from long run times, high sample requirements, or inability to separate murine from human beta-globin chains. The latter point is problematic for in vivo studies with gene-addition vectors in murine disease models and mouse/human chimeras. This study demonstrates HPLC-based measurements of globin expression (1) after differentiation of the commonly applied human umbilical cord blood derived erythroid progenitor-2 cell line, (2) in erythroid progeny of CD34+ cells for the analysis of clustered regularly interspaced short palindromic repeats/Cas9-mediated disruption of the globin regulator BCL11A, and (3) of transgenic mice holding the human beta-globin locus. At run times of 8 min for separation of murine and human beta-globin chains as well as of human gamma globin chains, and with routine measurement of globin-chain ratios for 12 nL of blood (tested for down to 0.75 nL) or of 300,000 in vitro differentiated cells, the methods presented here and any variant-specific adaptations thereof will greatly facilitate evaluation of novel therapy applications for beta hemoglobinopathies. PMID- 29325433 TI - Mental Health-Ill Health Differences in Disease Severity and Its Sociodemographic Biobehavioral Predictors Among Patients With Knee Osteoarthritis. AB - Our aim in this cross-sectional study was to investigate mental health-ill health differences in disease severity and its sociodemographic biobehavioral predictors among patients with knee osteoarthritis (OA). Applying convenient sampling, 180 patients with knee OA in Tabriz, Iran, were recruited to participate in completing a three-section questionnaire (SF-12, Lequesne Algofunctional Index and Self-Management Behaviors Scale). Separate hierarchical multiple linear regressions were performed with OA severity as dependent variable: one for OA patients with positive mental health and other for OA patients with mental disorders symptoms. Among the patients with positive mental health, but not those with symptoms of mental disorder, pain management, duration of OA, physical activity management, living alone, and level of education were significant predictors of disease severity. Health care providers with a better understanding on the determinants of disease severity by mental health status may identify vulnerable patients and develop targeted interventions to foster disease management behaviors among OA patients. PMID- 29325434 TI - Collection of real-world data on nivolumab's effectiveness in renal cell carcinoma: rationale for an observational study. AB - Renal cell carcinoma (RCC) represents the seventh (men) respectively tenth (women) most frequent cancer in western countries. After one or more lines of VEGF-targeted therapy, immunotherapy with nivolumab is strongly recommended in patients with metastatic RCC. Nivolumab is the first, and so far, only approved PD-1 immune checkpoint inhibitor to demonstrate a gain in overall survival in RCC. We describe herein design and rationale of trial CA209653 ('NIS NORA'), a prospective, noninterventional cohort study investigating the effectiveness of nivolumab. This systematic collection of real-world effectiveness data will recruit 323 patients with advanced RCC to provide a precise estimate for overall survival over a 5-year follow-up period (Trial registration: NCT02940639). PMID- 29325435 TI - Early stages of HIV treatment cascade in people living with HIV in Saint Petersburg, Russia. AB - The proportion of people living with HIV (PLWH) in need of antiretroviral therapy (ART) is growing rapidly in Russia. Successful treatment outcomes reduces disease progression and contributes to HIV epidemic control. We conducted a pilot study following 100 PLWH newly found eligible for ART in St. Petersburg, Russia. We determined the proportion of PLWH who initiated ART, remained in treatment, and achieved an undetectable VL during 6-month follow up. Semi-structured interviews were conducted prior the initiation of ART and progress along the cascade was assessed through medical chart review. Individual characteristics associated with successful ART outcomes were assessed as part of efforts to generate hypotheses. Almost all (96%) participants initiated ART, full retention was demonstrated by 80%, among whom 71% achieved undetectable VL. Optimal retention was associated with older age and higher education (p < 0.05). There was no significant difference in ART outcomes between those who used illicit drugs and those had not. Interventions to improve treatment effectiveness should emphasize that initiation, optimal retention and achieving an undetectable VL are independent of drug abuse status. However, our pilot study highlights the need for the further research in the examining links between individual and structural factors and ART effectiveness. PMID- 29325436 TI - Patient predictors of response to cognitive behaviour therapy and schema therapy for depression. AB - OBJECTIVE: Few studies have examined differential predictors of response to psychotherapy for depression. Greater understanding about the factors associated with therapeutic response may better enable therapists to optimise response by targeting therapy for the individual. The aim of the current exploratory study was to examine patient characteristics associated with response to cognitive behaviour therapy and schema therapy for depression. METHODS: Participants were 100 outpatients in a clinical trial randomised to either cognitive behaviour therapy or schema therapy. Potential predictors of response examined included demographic, clinical, functioning, cognitive, personality and neuropsychological variables. RESULTS: Individuals with chronic depression and increased levels of pre-treatment negative automatic thoughts had a poorer response to both cognitive behaviour therapy and schema therapy. A treatment type interaction was found for verbal learning and memory. Lower levels of verbal learning and memory impairment markedly impacted on response to schema therapy. This was not the case for cognitive behaviour therapy, which was more impacted if verbal learning and memory was in the moderate range. CONCLUSION: Study findings are consistent with the Capitalisation Model suggesting that therapy that focuses on the person's strengths is more likely to contribute to a better outcome. Limitations were that participants were outpatients in a randomised controlled trial and may not be representative of other depressed samples. Examination of a variety of potential predictors was exploratory and requires replication. PMID- 29325437 TI - The prevalence and burden of mental and substance use disorders in Australia: Findings from the Global Burden of Disease Study 2015. AB - OBJECTIVES: Timely and accurate assessments of disease burden are essential for developing effective national health policies. We used the Global Burden of Disease Study 2015 to examine burden due to mental and substance use disorders in Australia. METHODS: For each of the 20 mental and substance use disorders included in Global Burden of Disease Study 2015, systematic reviews of epidemiological data were conducted, and data modelled using a Bayesian meta regression tool to produce prevalence estimates by age, sex, geography and year. Prevalence for each disorder was then combined with a disorder-specific disability weight to give years lived with disability, as a measure of non-fatal burden. Fatal burden was measured as years of life lost due to premature mortality which were calculated by combining the number of deaths due to a disorder with the life expectancy remaining at the time of death. Disability adjusted life years were calculated by summing years lived with disability and years of life lost to give a measure of total burden. Uncertainty was calculated around all burden estimates. RESULTS: Mental and substance use disorders were the leading cause of non-fatal burden in Australia in 2015, explaining 24.3% of total years lived with disability, and were the second leading cause of total burden, accounting for 14.6% of total disability-adjusted life years. There was no significant change in the age-standardised disability-adjusted life year rates for mental and substance use disorders from 1990 to 2015. CONCLUSION: Global Burden of Disease Study 2015 found that mental and substance use disorders were leading contributors to disease burden in Australia. Despite several decades of national reform, the burden of mental and substance use disorders remained largely unchanged between 1990 and 2015. To reduce this burden, effective population-level preventions strategies are required in addition to effective interventions of sufficient duration and coverage. PMID- 29325438 TI - Workplace ostracism And workplace behaviors: A moderated mediation model of perceived stress and psychological empowerment. AB - BACKGROUND AND OBJECTIVES: Workplace ostracism research has examined numerous underlying mechanisms to understand the link between workplace ostracism and behavioral outcomes. Ostracism has been suggested to be an interpersonal stressor; however, research has not investigated workplace ostracism from a stress perspective. Therefore, the study investigated the mediating effect of perceived stress for the relationships between workplace ostracism and helping behavior, voicing behavior, and task performance. The study also investigated the moderating effect of psychological empowerment for the relationships between perceived stress and behavioral outcomes. DESIGN: The study design was a three wave self-reported questionnaire. METHOD: The study sampled 225 full-time employees in South Korea and regression analyses with bootstrapping were conducted to test the moderated mediation models. RESULTS: The bootstrapped 95% CI around the indirect effects did not contain zero; therefore, perceived stress mediated the relationship between workplace ostracism and helping behavior ( .06), voicing behavior (-.07), and task performance (-.07). Further, the moderated mediation analyses found perceived stress mediated the relationships between workplace ostracism and behavioral outcomes only when individuals perceived low levels of psychological empowerment. CONCLUSION: The findings suggest that workplace ostracism is a stressor and psychological empowerment can mitigate the negative effects of ostracism on behavioral outcomes. PMID- 29325439 TI - Quit Outcomes and Program Utilization by Mode of Entry Among Clients Enrolling in a Quitline. AB - PURPOSE: To investigate how mode of entry into a quitline influences program utilization and quit outcomes among clients seeking cessation services. DESIGN: This is a retrospective analysis of clients receiving quitline services from January 2011 to June 2016. SETTING: The study was conducted at the Arizona Smokers' Helpline. PARTICIPANTS: Enrolled clients completed a 7-month follow-up (N = 18 650). MEASURES: The independent variable was referral mode of entry (ie, proactive, passive, and self-referral). Outcome variables included tobacco cessation medication use, number of coaching sessions completed, and 30-day tobacco abstinence at 7 months. ANALYSIS: Logistic regression was used to analyze tobacco abstinence after controlling for potential confounders. RESULTS: Compared to self-referred clients, proactively referred clients were least likely (odds ratio [OR]: 0.88; 95% confidence interval [CI]: 0.81-0.97), whereas passively referred clients were most likely (OR: 1.14; 95% CI: 1.00-1.30) to report tobacco abstinence. Proactively referred (OR: 0.79; 95% CI: 0.70-0.88), but not passively referred, clients were 21% less likely to report tobacco cessation medication use than self-referred clients. CONCLUSION: Proactive referrals are associated with lower utilization of tobacco cessation medication and less successful quit outcomes; however, provider referrals are critical to reaching tobacco users who may have more significant health risks and barriers to quitting. Examining potential barriers among both providers and provider-referred clients is needed to inform improvements in training providers on brief interventions for tobacco cessation. PMID- 29325442 TI - Pooled Generation of Lentiviral Tetracycline-Regulated microRNA Embedded Short Hairpin RNA Libraries. AB - Short hairpin RNA (shRNA) screens are powerful tools to probe genetic dependencies in loss-of-function studies, such as the identification of therapeutic targets in cancer research. Lentivirally delivered shRNAs embedded in endogenous microRNA contexts (shRNAmiRs) mediate efficient long-term suppression of target genes suitable for numerous experimental contexts and clinical applications. Here, an easy-to-use laboratory protocol is described, covering the design and pooled assembly of focused shRNAmiR libraries into an optimized, Tet inducible all-in-one lentiviral vector, packaging of viral particles, followed by retrieval and quantification of hairpin sequences after cellular DNA-recovery. Starting from a gene list to the identification of hits, the protocol enables shRNA screens within 6 weeks. PMID- 29325440 TI - Case-Mix Adjustment of the Bereaved Family Survey. AB - Surveys of bereaved family members are increasingly being used to evaluate end-of life (EOL) care and to measure organizational performance in EOL care quality. The Bereaved Family Survey (BFS) is used to monitor EOL care quality and benchmark performance in the Veterans Affairs (VA) health-care system. The objective of this study was to develop a case-mix adjustment model for the BFS and to examine changes in facility-level scores following adjustment, in order to provide fair comparisons across facilities. We conducted a cross-sectional secondary analysis of medical record and survey data from veterans and their family members across 146 VA medical centers. Following adjustment using model based propensity weighting, the mean change in the BFS-Performance Measure score across facilities was -0.6 with a range of -2.6 to 0.6. Fifty-five (38%) facilities changed within +/-0.5 percentage points of their unadjusted score. On average, facilities that benefited most from adjustment cared for patients with greater comorbidity burden and were located in urban areas in the Northwest and Midwestern regions of the country. Case-mix adjustment results in minor changes to facility-level BFS scores but allows for fairer comparisons of EOL care quality. Case-mix adjustment of the BFS positions this National Quality Forum endorsed measure for use in public reporting and internal quality dashboards for VA leadership and may inform the development and refinement of case-mix adjustment models for other surveys of bereaved family members. PMID- 29325441 TI - Five-Year Experience of an Inpatient Palliative Care Unit at an Academic Referral Center. AB - BACKGROUND: Palliative care units (PCUs) staffed by specialty-trained physicians and nurses have been established in a number of medical centers. The purpose of this study is to review the 5-year experience of a PCU at a large, urban academic referral center. METHODS: We retrospectively reviewed a prospectively collected database of all admissions to the PCU at Vanderbilt University Medical Center in the first 5 years of its existence, from 2012 through 2017. RESULTS: Over these 5 years, there were 3321 admissions to the PCU. No single underlying disease process accounted for the majority of the patients, but the largest single category of patients were those with malignancy, who accounted for 38% of admissions. Transfers from the intensive care unit accounted for 50% of admissions, with 43% of admissions from a hospital floor and 7% coming from the emergency department or a clinic. Median length of stay in the PCU was 3 days. In hospital deaths occurred for 50% of admitted patients, while 38% of patients were discharged from the PCU to hospice. CONCLUSION: These data show that a successful PCU is enabled by buy in from a wide variety of referring specialists and by a multidisciplinary palliative care team focused on care of the actively dying patient as well as pain and symptom management, advance care planning, and hospice referral since a large proportion of referred patients do not die in house. PMID- 29325443 TI - Moving upstream in health promoting policies for older people with early frailty in England? A policy analysis. AB - Objectives Globally, populations are rapidly ageing and countries have developed health promotion and wellbeing strategies to address increasing demand for health care and old-age support. The older population is not homogeneous however, and includes a large group in transition between being active and healthy to being frail, i.e. with early frailty. This review explores the extent to which policy in England has addressed this group with a view to supporting independence and preventing further progression towards frailty. Methods A narrative review was conducted of 157 health and social care policy documents current in 2014-2017 at three levels of the health and social care system in England. Findings We report the policy problem analysis, the shifts over time in language from health promotion to illness prevention, the shift in target populations to mid-life and those most at risk of adverse outcomes through frailty, and changes to delivery mechanisms to incentivize attention to the frailest rather than those with early frailty. We found that older people in general were not identified as a specific population in many of these policies. While this may reflect a welcome lack of age discrimination, it could equally represent omission through ageism. Only at local level did we identify some limited attention to preventative actions with people with early frailty. Conclusion The lack of policy attention to older people with early frailty is a missed opportunity to address some of the demands on health and social care services. Addressing the individual and societal consequences of adverse experiences of those with the greatest frailty should not distract from a more distinct public health perspective which argues for a refocusing upstream to health promotion and illness prevention for those with early frailty. PMID- 29325445 TI - The Morbidity of Ureteral Strictures in Patients with Prior Ureteroscopic Stone Surgery: Multi-Institutional Outcomes. AB - PURPOSE: Nephrolithiasis is an increasingly common ailment in the United States. Ureteroscopic management has supplanted shockwave lithotripsy as the most common treatment of upper tract stone disease. Ureteral stricture is a rare but serious complication of stone disease and its management. The impact of new technologies and more widespread ureteroscopic management on stricture rates is unknown. We describe our experience in managing strictures incurred following ureteroscopy for upper tract stone disease. MATERIALS AND METHODS: Records for patients managed at four tertiary care centers between December 2006 and October 2015 with the diagnosis of ureteral stricture following ureteroscopy for upper tract stone disease were retrospectively reviewed. Study outcomes included number and type (endoscopic, reconstructive, or nephrectomy) of procedures required to manage stricture. RESULTS: Thirty-eight patients with 40 ureteral strictures following URS for upper tract stone disease were identified. Thirty-five percent of patients had hydronephrosis or known stone impaction at the time of initial URS, and 20% of cases had known ureteral perforation at the time of initial URS. After stricture diagnosis, the mean number of procedures requiring sedation or general anesthesia performed for stricture management was 3.3 +/- 1.8 (range 1-10). Eleven strictures (27.5%) were successfully managed with endoscopic techniques alone, 37.5% underwent reconstruction, 10% had a chronic stent/nephrostomy, and 10 (25%) required nephrectomy. CONCLUSIONS: The surgical morbidity of ureteral strictures incurred following ureteroscopy for stone disease can be severe, with a low success rate of endoscopic management and a high procedural burden that may lead to nephrectomy. Further studies that assess specific technical risk factors for ureteral stricture following URS are needed. PMID- 29325446 TI - Reduction of PTSD Symptoms With Pre-Reactivation Propranolol Therapy: A Randomized Controlled Trial. AB - OBJECTIVE: The authors assessed the efficacy of trauma memory reactivation performed under the influence of propranolol, a noradrenergic beta-receptor blocker, as a putative reconsolidation blocker, in reducing symptoms of posttraumatic stress disorder (PTSD). METHOD: This was a 6-week, double-blind, placebo-controlled, randomized clinical trial in 60 adults diagnosed with long standing PTSD. Propranolol or placebo was administered 90 minutes before a brief memory reactivation session, once a week for 6 consecutive weeks. The hypothesis predicted a significant treatment effect of trauma reactivation with propranolol compared with trauma reactivation with placebo in reducing PTSD symptoms on both the Clinician-Administered PTSD Scale (CAPS) and the patient-rated PTSD Checklist Specific (PCL-S) in an intention-to-treat analysis. RESULTS: The estimated group difference in posttreatment CAPS score, adjusted for pretreatment values (analysis of covariance), was a statistically significant 11.50. The within-group pre- to posttreatment effect sizes (Cohen's d) were 1.76 for propranolol and 1.25 for placebo. For the PCL-S, the mixed linear model's estimated time-by-group interaction yielded an average decrease of 2.43 points per week, for a total significant difference of 14.58 points above that of placebo. The pre- to posttreatment effect sizes were 2.74 for propranolol and 0.55 for placebo. Per protocol analyses for both outcomes yielded similar significant results. CONCLUSIONS: Pre-reactivation propranolol, a treatment protocol suggested by reconsolidation theory, appears to be a novel and efficacious treatment for PTSD. Replication studies using a long-term follow-up in various trauma populations are required. PMID- 29325447 TI - Longitudinal Association of Amyloid Beta and Anxious-Depressive Symptoms in Cognitively Normal Older Adults. AB - OBJECTIVE: To understand the role of depressive symptoms in preclinical Alzheimer's disease, it is essential to define their temporal relationship to Alzheimer's proteinopathies in cognitively normal older adults. The study objective was to examine associations of brain amyloid beta and longitudinal measures of depression and depressive symptom clusters in a cognitively normal sample of older adults. METHOD: A total of 270 community-dwelling, cognitively normal elderly individuals underwent baseline Pittsburgh compound B (PiB) positron emission tomography (PET) measures of cortical aggregate amyloid beta and annual assessments with the 30-item Geriatric Depression Scale (GDS). The authors evaluated continuous PiB binding as a predictor of GDS score or GDS cluster, calculated as total scores and mean scores for three GDS item clusters (apathy-anhedonia, dysphoria, and anxiety-concentration), across time (1-5 years; mean=3.8 years) in separate mixed-effects models with backward elimination. Initial predictors included PiB binding, age, sex, Hollingshead score, American National Adult Reading Test (AMNART) score, apolipoprotein E epsilon4 status, depression history, and their interactions with time. RESULTS: Higher PiB binding predicted accelerated rates of increase in GDS score over time, adjusting for depression history. Higher PiB binding also predicted steeper rates of increase for anxiety-concentration scores, adjusting for depression history and the AMNART score-by-time interaction. In a post hoc model estimating anxiety scores without concentration disturbance items, the PiB binding-by-time interaction remained significant. CONCLUSIONS: Higher amyloid beta burden was associated with increasing anxious-depressive symptoms over time in cognitively normal older individuals. Prior depression history was related to higher but not worsening symptom ratings. These results suggest a direct or indirect association of elevated amyloid beta levels with worsening anxious-depressive symptoms and support the hypothesis that emerging neuropsychiatric symptoms represent an early manifestation of preclinical Alzheimer's disease. PMID- 29325448 TI - Impact of CYP2C19 Genotype on Escitalopram Exposure and Therapeutic Failure: A Retrospective Study Based on 2,087 Patients. AB - OBJECTIVE: The antidepressant escitalopram is predominantly metabolized by the polymorphic CYP2C19 enzyme. The authors investigated the effect of CYP2C19 genotype on exposure and therapeutic failure of escitalopram in a large patient population. METHOD: A total of 4,228 escitalopram serum concentration measurements from 2,087 CYP2C19-genotyped patients 10-30 hours after drug intake were collected retrospectively from the drug monitoring database at Diakonhjemmet Hospital in Oslo. The patients were divided into subgroups based on CYP2C19 genotype: those carrying inactive (CYP2C19Null) and gain-of-function (CYP2C19*17) variant alleles. The between-subgroup differences in escitalopram exposure (endpoint: dose-harmonized serum concentration) and therapeutic failure (endpoint: switching to another antidepressant within 1 year after the last escitalopram measurement) were evaluated by multivariate mixed model and chi square analysis, respectively. RESULTS: Compared with the CYP2C19*1/*1 group, escitalopram serum concentrations were significantly increased 3.3-fold in the CYP2C19Null/Null group, 1.6-fold in the CYP2C19*Null/*1 group, and 1.4-fold in the CYP2C19Null/*17 group, whereas escitalopram serum concentrations were significantly decreased by 10% in the CYP2C19*1/*17 group and 20% in the CYP1C19*17/*17 group. In comparison to the CYP2C19*1/*1 group, switches from escitalopram to another antidepressant within 1 year were 3.3, 1.6, and 3.0 times more frequent among the CYP2C19Null/Null, CYP2C19*1/*17, and CYP1C19*17/*17 groups, respectively. CONCLUSIONS: The CYP2C19 genotype had a substantial impact on exposure and therapeutic failure of escitalopram, as measured by switching of antidepressant therapy. The results support the potential clinical utility of CYP2C19 genotyping for individualization of escitalopram therapy. PMID- 29325450 TI - Symptom Science: Omics Supports Common Biological Underpinnings Across Symptoms. AB - For precision health care to be successful, an in-depth understanding of the biological mechanisms for symptom development and severity is essential. Omics based research approaches facilitate identification of the biological underpinnings of symptoms. We reviewed literature for omics-based approaches and exemplar symptoms (sleep disruption, cognitive impairment, fatigue, gastrointestinal [GI] distress, and pain) to identify genes associated with the symptom or symptoms across disease processes. The review yielded 27 genes associated with more than one symptom. ABCB1 (MDR1), APOE, BDNF, CNR1, COMT, DAT1 (SLC6A3), DRD4, ESR1, HLA-DRB1, IL10, IL1B, IL6, LTA, PTGS2 (COX-2), SLC6A4, and TNF were associated with cognitive impairment and pain, which had the most genes in common. COMT and TNF were related to all symptoms except sleep disruption. IL1B was associated with all symptoms except cognitive impairment. IL10, IL1A, IL1B, IL1RN, IL6, and IL8 (CXCL8) were linked with all the exemplar symptoms in various combinations. ABCB1 (MDR1) and SLC6A4 were associated with cognitive impairment, GI distress, and pain. IL10 and IL6 were linked to cognitive impairment, fatigue, and pain. APOE and BDNF were associated with sleep disruption, cognitive impairment, and pain. The 27 genes were associated with canonical pathways including immune, inflammatory, and cell signaling. The pathway analysis generated a 15-gene model from the 27 as well as 3 networks, which incorporated new candidate genes. The findings support the hypothesis of overlapping biological underpinnings across the exemplar symptoms. Candidate genes may be targeted in future omics research to identify mechanisms of co occurring symptoms for potential precision treatments. PMID- 29325449 TI - Analysis of DNA Methylation in Young People: Limited Evidence for an Association Between Victimization Stress and Epigenetic Variation in Blood. AB - OBJECTIVE: DNA methylation has been proposed as an epigenetic mechanism by which early-life experiences become "embedded" in the genome and alter transcriptional processes to compromise health. The authors sought to investigate whether early life victimization stress is associated with genome-wide DNA methylation. METHOD: The authors tested the hypothesis that victimization is associated with DNA methylation in the Environmental Risk (E-Risk) Longitudinal Study, a nationally representative 1994-1995 birth cohort of 2,232 twins born in England and Wales and assessed at ages 5, 7, 10, 12, and 18 years. Multiple forms of victimization were ascertained in childhood and adolescence (including physical, sexual, and emotional abuse; neglect; exposure to intimate-partner violence; bullying; cyber victimization; and crime). RESULTS: Epigenome-wide analyses of polyvictimization across childhood and adolescence revealed few significant associations with DNA methylation in peripheral blood at age 18, but these analyses were confounded by tobacco smoking and/or did not survive co-twin control tests. Secondary analyses of specific forms of victimization revealed sparse associations with DNA methylation that did not replicate across different operationalizations of the same putative victimization experience. Hypothesis-driven analyses of six candidate genes in the stress response (NR3C1, FKBP5, BDNF, AVP, CRHR1, SLC6A4) did not reveal predicted associations with DNA methylation in probes annotated to these genes. CONCLUSIONS: Findings from this epidemiological analysis of the epigenetic effects of early-life stress do not support the hypothesis of robust changes in DNA methylation in victimized young people. We need to come to terms with the possibility that epigenetic epidemiology is not yet well matched to experimental, nonhuman models in uncovering the biological embedding of stress. PMID- 29325451 TI - Expression of Sestrin Genes in Radiotherapy for Prostate Cancer and Its Association With Fatigue: A Proof-of-Concept Study. AB - : Genetic factors that influence inflammation and energy production/expenditure in cells may affect patient outcomes following treatment with external beam radiation therapy (EBRT). Sestrins, stress-inducible genes with antioxidant properties, have recently been implicated in several behaviors including fatigue. This proof-of-concept study explored whether the sestrin family of genes ( SESN1, SESN2, and SESN3) were differentially expressed from baseline to the midpoint of EBRT in a sample of 26 Puerto Rican men with nonmetastatic prostate cancer. We also examined whether changes in expression of these genes were associated with changes in fatigue scores during EBRT. METHOD: Participants completed the 13-item Functional Assessment of Cancer Therapy-Fatigue subscale, Spanish version. Whole blood samples were collected at baseline and at the midpoint of EBRT. Gene expression data were analyzed using the limma package in the R (version R 2.14.0.) statistical software. Linear models and empirical Bayes moderation, adjusted for radiation fraction (total number of days of prescribed radiation treatment), were used to examine potential associations between changes in gene expression and change in fatigue scores. RESULTS: Expression of SESN3 (adjusted p < .01, log fold change -0.649) was significantly downregulated during EBRT, whereas the expressions of SESN1 and SESN2 remained unchanged. After adjustment for radiation fraction, change in SESN3 expression was associated with change in fatigue during EBRT (false discovery rate <.01). CONCLUSIONS: Downregulation of SESN3, a novel pharmacoactive stress response gene, was associated with fatigue intensification during EBRT. SESN3 may serve as an interventional target and a biomarker for the cellular and molecular events associated with EBRT-related fatigue. PMID- 29325453 TI - Age-related lung tissue remodeling due to the local distribution of MMP-2, TIMP 2, TGF-beta and Hsp70. AB - Lung tissue remodeling requires complex interactions of matrix metalloproteinases (MMPs), tissue inhibitors of metalloproteinases (TIMPs), transforming growth factor (TGF) family and heat shock protein 70 (Hsp70). We evaluated the appearance and distribution of MMP-2, TIMP-2, TGF-beta1 and Hsp70 in lung tissue using immunohistochemistry. Stained structures were graded semiquantitatively. Overall, more MMP-2, TIMP-2, TGF-beta1 and Hsp70 were observed in bronchial cartilage, bronchial and alveola repithelium, and among alveolar macrophages. We evaluated mostly alveolar macrophages, bronchial epithelial cells and mucosal fibroblasts stained for TGF-beta1, MMP-2 and TIMP-2. We also assessed strong or moderate correlations between numbers of cells containing TGF-beta1, MMP-2, TIMP 2 in patients >= 60 years old. The presence of less TGF-beta1 and more MMP-2, TIMP-2 and Hsp70 containing cells in all tissue groups indicated that local regulation was more dependent on MMP-2, TIMP-2 and Hsp70 distribution. Fewer TIMP 2, Hsp70 and TGF-beta1 immunoreactive cells in younger individuals and increased expression of Hsp70 in elderly individuals demonstrated the influence of aging in lung remodeling. Findings of MMP-2, TIMP-2 and TGF-beta1 immunoreactive cells in elderly individuals indicate lung remodeling due to aging. PMID- 29325444 TI - Redox Paradox: A Novel Approach to Therapeutics-Resistant Cancer. AB - SIGNIFICANCE: Cancer cells that are resistant to radiation and chemotherapy are a major problem limiting the success of cancer therapy. Aggressive cancer cells depend on elevated intracellular levels of reactive oxygen species (ROS) to proliferate, self-renew, and metastasize. As a result, these aggressive cancers maintain high basal levels of ROS compared with normal cells. The prominence of the redox state in cancer cells led us to consider whether increasing the redox state to the condition of oxidative stress could be used as a successful adjuvant therapy for aggressive cancers. Recent Advances: Past attempts using antioxidant compounds to inhibit ROS levels in cancers as redox-based therapy have met with very limited success. However, recent clinical trials using pro-oxidant compounds reveal noteworthy results, which could have a significant impact on the development of strategies for redox-based therapies. CRITICAL ISSUES: The major objective of this review is to discuss the role of the redox state in aggressive cancers and how to utilize the shift in redox state to improve cancer therapy. We also discuss the paradox of redox state parameters; that is, hydrogen peroxide (H2O2) as the driver molecule for cancer progression as well as a target for cancer treatment. FUTURE DIRECTIONS: Based on the biological significance of the redox state, we postulate that this system could potentially be used to create a new avenue for targeted therapy, including the potential to incorporate personalized redox therapy for cancer treatment. PMID- 29325452 TI - Inherited Cancer in the Age of Next-Generation Sequencing. AB - Next-generation sequencing (NGS) technology has led to the ability to test for multiple cancer susceptibility genes simultaneously without significantly increasing cost or turnaround time. With growing usage of multigene testing for inherited cancer, ongoing education for nurses and other health-care providers about hereditary cancer screening is imperative to ensure appropriate testing candidate identification, test selection, and posttest management. The purpose of this review article is to (1) provide an overview of how NGS works to detect germline mutations, (2) summarize the benefits and limitations of multigene panel testing, (3) describe risk categories of cancer susceptibility genes, and (4) highlight the counseling considerations for patients pursuing multigene testing. PMID- 29325454 TI - Down-expression of P2RX2, KCNQ5, ERBB3 and SOCS3 through DNA hypermethylation in elderly women with presbycusis. AB - CONTEXT: Presbycusis, an age-related hearing impairment (ARHI), represents the most common sensory disability in adults. Today, the molecular mechanisms underlying presbycusis remain unclear. This is in particular due to the fact that ARHI is a multifactorial complex disorder resulting from several genomic factors interacting with lifelong cumulative effects of: disease, diet, and environment. OBJECTIVE: Identification of novel biomarkers for presbycusis. MATERIALS AND METHODS: We selectively ascertained 18 elderly unrelated women lacking environmental and metabolic risk factors. Subsequently, we screened for methylation map changes in blood samples of women with presbycusis as compared to controls, using reduced representation bisulfite sequencing. We focused on hypermethylated cytosine bases located in gene promoters and the first two exons. To elucidate the related gene expression changes, we performed transcriptomic study using gene expression microarray. RESULTS: Twenty-seven genes, known to be expressed in adult human cochlea, were found in the blood cells to be differentially hypermethylated with significant (p < 0.01) methylation differences (>30%) and down-expressed with fold change >1.2 (FDR <0.05). Functional annotation and qRT-PCR further identified P2RX2, KCNQ5, ERBB3 and SOCS3 to be associated with the progression of ARHI. DISCUSSION AND CONCLUSION: Down-expressed genes associated with DNA hypermethylation could be used as biomarkers for understanding complex pathogenic mechanisms underlying presbycusis. PMID- 29325455 TI - Influence of middle-distance running on muscular micro RNAs. AB - A specific subset of micro RNAs (miRs), including miR-133 and miR-206, is specifically expressed in muscle tissue, so that they are currently defined as muscular miRs (myomiRs). To further elucidate the role of myomiRs in muscle biology, we measured miR-133a and miR-206 in plasma of 28 middle-age recreational athletes. The study population consisted of 28 middle aged, recreation athletes (11 women and 17 men; mean age, 46 years) who completed a 21.1 km, half-marathon. The plasma concentration of miR-133a and miR-206, the serum concentration of creatine kinase (CK) and high-sensitivity (HS) cardiac troponin T (cTnT), as well as capillary lactate, were measured before and immediately after the run. The median serum concentration of total CK (257 versus 175 U/L; p < .001), cTnT (17.8 versus 5.6 ng/L; p < .001), and the plasma values of both miR-133a (4.22 versus 0.64 * 10-4; p < .001) and miR-206 (1.36 versus 0.63 * 10-4; p = .001) were considerably increased immediately after the half-marathon run. In multivariate analysis only post-exercise capillary lactate was found to be independently associated with running time. A significant and independent correlation was observed between plasma variations of the two miRs, but not with other physiological or laboratory parameters. The results of this study suggest that the biological significance of miR-133a and 206 variation after middle-distance running parallels but not overlaps the release of biomarkers of nonspecific tissue damage. Enhanced plasma values of these myomiRs may hence reflect a physiological response to high-intensity and/or prolonged exercise rather than tissue injury. PMID- 29325456 TI - Dual-purpose vardenafil hydrochloride/dapoxetine hydrochloride orodispersible tablets: in vitro formulation/evaluation, stability study and in vivo comparative pharmacokinetic study in healthy human subjects. AB - Erectile dysfunction (ED) is the most important disorder after premature ejaculation for sexual activity in men. Vardenafil hydrochloride (VH) is an oral therapy for the treatment of erectile dysfunction. VH oral disintegrating tablets (ODTs) have been prepared by freeze drying technique to improve its dissolution profile and the overall clinical performance. Dapoxetine hydrochloride (DH) was added to the best three formulae of the prepared VH ODTs to treat premature ejaculation. All the ODTs formulae were evaluated for weight variation, friability, drug content, in vitro disintegration time, wetting time, and the dissolution study. Gelatin as a matrix former with N-methylpyrrolidone as a solubilizer in VH/DH ODTs improved the dissolution rate and extent of release of VH and DH with 100% of drug being dissolved after 15 min. In vivo study results from six healthy male volunteers showed shorter Tmax of VH from VH/DH ODT of 0.583 +/- 0.129 h and shorter Tmax of DH from VH/DH ODT of 0.625 +/- 0.137 h and showed AUC0-12 of VH from VH/DH ODT of 39.234 +/- 10.932 ng/ml h1 and AUC0-12 of DH from VH/DH ODT of 531.681 +/- 129.544 ng/ml h1, with relative bioavailability values of 100.9 and 85%, respectively, compared to (Levitra(r)) and (Priligy(r)). PMID- 29325458 TI - A diagnostic test accuracy meta-analysis of maternal serum ischemia-modified albumin for detection of preeclampsia. AB - BACKGROUND/AIMS: Ischemia-modified albumin (IMA) has been widely accepted as a serological biomarker. IMA has been proposed as a simple and novel marker of oxidative stress in preeclampsia (PE). This systematic review and diagnostic test accuracy meta-analysis aims to evaluate the diagnostic accuracy of this novel serological biomarker, IMA to detect PE. METHODS: A systematic search of major databases was performed to identify all published diagnostic accuracy studies on IMA. Risk of bias and applicability concerns were assessed for included studies. Summary estimates; the pooled sensitivity, specificity, and the diagnostic odds ratio (DOR) of IMA for the diagnosis of PE were computed using random-effects models. The overall test performance was summarized using summary receiver operating characteristic (SROC) curve analysis. RESULTS: Six articles were included in this meta-analysis. The overall estimates of IMA in detecting PE were pooled sensitivity; 0.80 (95%CI 0.73-0.86), pooled specificity; 0.76 (95%CI 0.70 0.81), DOR; 14.32 (95%CI 5.06-40.57), and area under curve (AUC); 0.860. There was no between-study heterogeneity due to threshold effect. CONCLUSIONS: This meta-analysis showed IMA could be useful as a biomarker for PE with good accuracy (AUC = 0.860). However, further research is needed for re-evaluation and clinical validation of fairly promising results of this meta-analysis. PMID- 29325459 TI - Is cord blood hepcidin influenced by the low-grade acute-phase response occurring during delivery? A small-scale longitudinal study. AB - AIM: To measure serum hepcidin in late pregnancy and in cord blood, and to analyze relationship between hepcidin, interleukin-6, and biomarkers of fetal iron status. MATERIALS AND METHODS: Data from 15 uncomplicated singleton pregnancies were analyzed longitudinally in trimester 3 (T3) and at birth. RESULTS: In T3, S-ferritin (median 14 ug/L) and transferrin (median 4.0 g/L) indicated low iron status, whereas the median soluble transferrin receptor (sTfR) was 4.0 mg/L, i.e. within the reference interval. Median T3 S-hepcidin was 7.8 ng/mL. Later on in cord blood, ferritin concentration (180 ug/L) were significantly higher, transferrin concentration (1.8 g/L) were significantly lower, and both sTfR (4.7 mg/L) and S-hepcidin concentrations (30.5 ng/mL) were significantly higher than maternal T3 concentrations. At the same time, cord blood interleukin-6 indicated an activated acute-phase reaction. In T3, after logarithmic transformation, there was a significant correlation between S hepcidin and both S-ferritin (r = 0.691) and sTfR (r = -0.825). There was also a significant correlation between S-ferritin and both sTfR (r = -0.729) and transferrin (r = 0.549) in T3. CONCLUSIONS: Although S-ferritin, S-hepcidin, and sTfR were correlated during pregnancy, these relationships were not apparent in umbilical cord blood. Further, cord blood interleukin-6 indicated an activated acute-phase response, and sTfR, which is known to be unaffected by inflammation, indicated a low iron status in cord blood. Thus, instead of representing an enhanced iron status, the data appear to suggest that hepcidin and ferritin in cord blood may be influenced by the low-grade acute-phase response that occurs during delivery. PMID- 29325457 TI - Synthetic Adeno-Associated Viral Vector Efficiently Targets Mouse and Nonhuman Primate Retina In Vivo. AB - Gene therapy is a promising approach in the treatment of inherited and common complex disorders of the retina. Preclinical and clinical studies have validated the use of adeno-associated viral vectors (AAV) as a safe and efficient delivery vehicle for gene transfer. Retinal pigment epithelium and rods-and to a lesser extent, cone photoreceptors-can be efficiently targeted with AAV. Other retinal cell types however are more challenging targets. The aim of this study was to characterize the transduction profile and efficiency of in silico designed, synthetic Anc80 AAVs for retinal gene transfer. Three Anc80 variants were evaluated for retinal targeting in mice and primates following subretinal delivery. In the murine retina Anc80L65 demonstrated high level of retinal pigment epithelium and photoreceptor targeting with comparable cone photoreceptor affinity compared to other AAVs. Remarkably, Anc80L65 enhanced transduction kinetics with visible expression as early as day 1 and steady state mRNA levels at day 3. Inner retinal tropism of Anc80 variants demonstrated distinct transduction patterns of Muller glia, retinal ganglion cells and inner nuclear layer neurons. Finally, murine findings with Anc80L65 qualitatively translated to the Rhesus macaque in terms of cell targets, levels and onset of expression. Our findings support the use of Anc80L65 for therapeutic subretinal gene delivery. PMID- 29325460 TI - Targeted delivery of melittin to cancer cells by AS1411 anti-nucleolin aptamer. AB - Melittin, a small water-soluble cationic amphipathic alpha-helical linear peptide, consisted of 26 amino acids, is the honeybee venom major constituent. Several reports have proved the lytic and apoptotic effects of melittin in several cancerous cell lines. In this study, we aimed to fabricate an AS1411 aptamer-melittin to specifically deliver melittin to nucleolin positive cells (A549). Melittin was covalently attached to antinucleolin aptamer (AS1411) and its toxicity in A549 (nucleolin positive) and L929 (nucleolin negative) was studied using MTT and Annexin V flow cytometry methods. Aptamer-melittin conjugate formation was confirmed by gel electrophoresis. Hemolytic effect of aptamer-melittin conjugate was compared to melittin alone. The aptamer-melittin conjugate showed efficient cell uptake and was more cytotoxic in A549 cells than melittin (p < .001). This complex was less toxic in control cells. Competitive inhibition assay confirmed that aptamer-melittin complex delivery occurred through receptor-ligand interaction on the cell surface. Moreover, aptamer melittin showed a significantly less hemolytic activity as compared with free melittin. This study showed that melittin could be specifically delivered to A549 cells when it was covalently conjugated to antinucleolin aptamer (AS1411) in vitro. This system can reduce the cytotoxic effects of melittin on cells with no nucleolin receptor overexpression which comprise most of normal cells such as L929 cells. PMID- 29325461 TI - Different analgesics prior to intrauterine device insertion: is there any evidence of efficacy? PMID- 29325462 TI - Tocilizumab treatment in patients with rheumatoid arthritis is associated with reduced fibrinogen levels and increased blood loss after total knee arthroplasty. AB - OBJECTIVE: Since IL-6 has been associated with activation of the coagulation cascade and upregulation of fibrinogen transcription, we retrospectively tested the hypothesis that patients with rheumatoid arthritis (RA) treated with tocilizumab (TCZ) may lose more blood when undergoing total knee arthroplasty (TKA). METHODS: This study included 115 RA patients who underwent primary TKA and were preoperatively tested for fibrinogen levels. The blood volume of each patient was calculated using the Nadler formula, and estimated blood loss after TKA was calculated as the change between pre-operative and post-operative hematocrits. If salvaged blood was reinfused, the volume was measured and added to the volume of the estimated blood loss. RESULTS: We observed that patients treated with TCZ had significantly lower pre-operative fibrinogen levels than those not treated with TCZ (190.0 mg/dL versus 347.0 mg/dL, respectively; p = .00018). We also observed a statistically significant increase in mean total volume of estimated blood loss after TKA in RA patients who had been treated with TCZ compared with those not treated with TCZ (797.1 mL versus 511.4 mL, respectively; p = .0039). CONCLUSION: TCZ treatment in patients with RA may increase the risk of blood loss after TKA because of decreased fibrinogen levels. PMID- 29325464 TI - The clinical course of patients with rheumatoid arthritis who underwent orthopaedic surgeries under disease control by tofacitinib. PMID- 29325463 TI - Compared With Elastin Stains, h-Caldesmon and Desmin Offer Superior Detection of Vessel Invasion in Gastric, Pancreatic, and Colorectal Adenocarcinomas. AB - BACKGROUND: The presence of vessel invasion is considered indicative of a poor prognosis in many malignant tumors. We aimed to compare the sensitivity of elastin stains (van Gieson's and orcein methods) with 2 smooth muscle markers (h caldesmon and desmin) in gastric, pancreatic, and colorectal adenocarcinoma specimens. MATERIALS AND METHODS: We used 27 (29.3%) gastric, 35 (38.0%) pancreatic, and 30 (32.6%) colorectal resection specimens. We applied a provisional classification of vessel invasion patterns: type A, a focus with a nearby artery unaccompanied by a vein; type T, a focus at the invasive front without an unaccompanied artery; and type X, foci that only appeared by any of the 4 stains used. RESULTS: There were 369 foci. The smooth muscle markers were more sensitive than the elastin stains, and h-caldesmon more sensitive than desmin, in all types. Among the 139 type A foci, 33 (23.7%) were positive by desmin and h-caldesmon, whereas the elastin stains were not ( P = .001). h Caldesmon was the only positive marker in 11 (7.9%; P = .011). Among the 78 type T foci, 21 (26.9%) were positive by desmin and h-caldesmon, when both elastin stains were negative ( P = .000). In 16 (20.5%) foci, h-caldesmon was the only positive marker ( P = .002). Among 152 type X foci, 91 (59.9%) were positive by all markers, 26 (17.1%) by both desmin and h-caldesmon, and 9 (5.9%) by only the 2 elastin stains ( P = .001). CONCLUSION: We recommend these stains for suspect foci in gastric, pancreatic, and colorectal adenocarcinoma specimens. They might highlight both predictable and unpredictable foci. PMID- 29325466 TI - The correlation between birth weight and insulin-like growth factor-binding protein-1 (IGFBP-1), kisspeptin-1 (KISS-1), and three-dimensional fetal volume. AB - PURPOSE: This study aimed to determine the relationship between birth weight, and maternal serum insulin-like growth factor-binding protein-1 (IGFBP-1) and kisspeptin-1 (KISS-1) levels, and first-trimester fetal volume (FV) based on three-dimensional ultrasonography. MATERIALS AND METHODS: The study included 142 pregnant women at gestational week 11 degrees -136. All fetuses were imaged ultrasonographically by the same physician. Maternal blood samples were collected at the time of ultrasonographic evaluation and analyzed for IGFBP-1 and KISS-1 levels via enzyme-linked immunosorbent assay (ELISA). Maternal and neonatal weights were recorded at birth. Birth weight <=10th and the >90th percentiles was defined as small and large for gestational age (SGA and LGA), respectively. RESULTS: Median crown-rump length (CRL), FV, and maternal serum IGFBP-1 and KISS 1 levels were 58.2 mm (35.3-79.2 mm), 16.3 cm3 (3.8-34.4 cm3), 68.1 ng mL-1 (3.8 377.9 mL-1), and 99.7 ng L-1 (42.1-965.3 ng L-1), respectively. First-trimester IGFBP-1 levels were significantly lower in the mothers with LGA neonates (p < .05). There was a significant positive correlation between CRL and FV, and between the IGFBP-1 and KISS-1 levels. IGFBP-1 levels and maternal weight at delivery were negatively correlated with neonatal birth weight. There was no correlation between CRL or FV and maternal IGFBP-1 or KISS1 levels (p > .05). The maternal IGFBP-1 level during the first trimester was a significant independent factor for SGA and LGA neonates (Odds ratio (OR): 0.011, 95%CI: 1.005-1.018, p < .001; and OR: 1.297, 95%CI: 1.074-1.566, p = .007, respectively). There was no significant relationship between SGA or LGA, and CRL, FV, or the KISS-1 level. CONCLUSIONS: As compared to the maternal KISS-1 level, the maternal IGFBP-1 level during the first trimester might be a better biomarker of fetal growth. Additional larger scale studies are needed to further delineate the utility of IGFBP-1 as a marker of abnormal birth weight. PMID- 29325465 TI - Prevalence of positive QuantiFERON gold in-tube testing in hidradenitis suppurativa. AB - AIM: Hidradenitis suppurativa (HS) is a chronic, recurrent, inflammatory disease of the apocrine sweat glands. Tumor necrosis factor-alpha (TNF-alpha) inhibitors are commonly used to treat HS. However, prior to initiating therapy patients must be screened for mycobacterium tuberculosis (mTB) exposure. Several mTB screening tests based on interferon gamma release assays are commercially available, but the performance of these assays in the HS population is unknown. The purpose of this study was to investigate the performance of the QuantiFERON gold in-tube assay (QFT-GIT) in a cohort of patients with HS. METHODS: This prospective study was conducted through the Wound Etiology and Healing (WE-HEAL) study. QFTGIT testing was performed using a commercial laboratory. Patients with positive test results underwent follow-up testing to evaluate for latent tuberculosis infection (LTBI). Data were collected on demographics and disease activity scores including Hurley stage, HS Sartorius score (HSS) and active nodule (AN) count. RESULTS: Of the 69 patients with a confirmed diagnosis of HS, seven (10.1%) tested QFT-GIT positive and 5.8% were diagnosed with LTBI. CONCLUSIONS: QFT-GIT results did not correlate with demographic characteristics or HS disease activity. PMID- 29325467 TI - Natasha Caruana: Timely Tale. PMID- 29325468 TI - Does "Enhanced Support" for Offenders Effectively Reduce Custodial Violence and Disruption? An Evaluation of the Enhanced Support Service Pilot. AB - This study aimed to examine the effectiveness of The Enhanced Support Service (ESS) pilot in reducing custodial violence and disruption, and the associated costs, by observing the behavioural change of the 35 service users who participated in ESS intervention within its first 22 months of operation. Frequencies of recorded incidents of aggressive behaviours, self-harming behaviours, noncompliance, and positive behaviours were counted from routine administrative systems using a coding structure developed in previous studies. The count data were analysed using nonparametric tests and Poisson regression models to derive an Incident Rate Ratio (IRR). Findings suggest the ESS is associated with a reduction in aggressive behaviours and noncompliance, with medium to large effect sizes ( r = .31-.53); however, it was not associated with a reduction in deliberate self-harm or increased positive behaviours. The Poisson models revealed that levels of pre-intervention behaviour, intervention length, intervention completion, and service location had varying effects on postintervention behaviour, with those who completed intervention demonstrating more favourable outcomes. The ESS service model was associated with a reduction in behaviour that challenges, which has implications for the reduction in associated social, economic, and political costs-as well as the commissioning of interventions and future research in this area. PMID- 29325469 TI - Current update of a thermosensitive liposomes composed of DPPC and Brij78. AB - Thermosensitive liposomes (TSLs) have been a prominent area of study in the discipline of tumour-targeted chemotherapeutics. The representative product of TSLs is ThermoDox(r) (DPPC/lyso-PC/PEG-lipid), which has advanced to Phase III clinical trials. Various groups have sought to develop a new TSL to improve upon the LTSL (lyso-lipid temperature-sensitive liposomes) formulation that is used to prepare ThermoDOX(r). This review focuses on the development and recent update of an innovative TSL formulation, HaT-liposomes composed of DPPC and Brij78. Various parameters of LTSL and HaT-liposomes are compared, including size, loading efficiency, transition temperature, temperature-dependent release kinetics, stability, pharmacokinetics, biodistribution and antitumour activity. Theranostic techniques involving HaT-liposomes are reported with regard to magnetic resonance imaging of drug delivery to tumours and identification of an early therapeutic biomarker in the treated tumour. The development of a further improved TSL formulation upon HaT-liposomes with improved stability and prolonged blood circulation is reported. Delivery of membrane impermeable drugs using HaT liposomes is explored. Finally, the challenges and future perspectives of this technology are discussed. PMID- 29325470 TI - The effect of shorter exposure versus prolonged exposure on treatment outcome in Tourette syndrome and chronic tic disorders - an open trial. AB - BACKGROUND: Exposure and response prevention has shown to be an effective strategy and is considered a first-line intervention in the behavioural treatment of tic disorders. Prior research demonstrated significant tic reduction after 12 two hour sessions. OBJECTIVE: In this open trial, the question is addressed whether, relative to these prolonged sessions, exposure sessions of shorter duration yield differential outcome for patients with tic disorders. METHODS: A total of 29 patients diagnosed with Tourette syndrome (TS) or chronic tic disorder were treated with shorter exposure sessions (1 h), and these data were compared to the data from a study about prolonged exposure (2 h, n = 21). Outcome was measured by the Yale Global Tic Severity Scale (YGTSS). RESULTS: Results suggest that after taking the difference in illness duration between the two groups into account, the effectiveness of shorter exposure sessions is not inferior to that of prolonged exposure. CONCLUSIONS: Results suggest that treatment with shorter exposure might be more efficient and more patients can be reached. Future research is needed to gain more insight into the mechanisms underlying the efficacy of behavioural treatments for tics. PMID- 29325471 TI - Intracranial subarachnoid hemorrhage following cervical laminoplasty: a report of two cases. AB - Intracranial hemorrhage is a rare complication of spinal surgery. Case 1 was a 58 year-old man who underwent cervical laminoplasty. No apparent iatrogenic dural rupture or cerebrospinal fluid leakage was observed. An hour after the surgery, the patient had convulsions and became restless thereafter. CT revealed an intracranial subarachnoid hemorrhage (SAH). The patient recovered normal consciousness the next morning. Case 2 was a 68-year-old woman who underwent cervical laminoplasty without postoperative cerebrospinal fluid leakage. Six days after the surgery, the patient continued to complain of nausea and headache. By 13 days, the patient reported relief from her symptoms. There was no evidence of cerebral aneurysm, or vascular malformation in both cases. Patients undergoing cervical laminoplasty might be at risk for developing SAH. Careful attention to intraoperative neck positioning, strict monitoring and control of perioperative blood pressure, and complete dural repair are essential measures for preventing SAH. PMID- 29325472 TI - Latent psychological distress existing behind a set of assessment measures is comparable to or more important than symptoms or disability in the association with quality of life and working status of patients with rheumatoid arthritis. AB - OBJECTIVES: To identify the determinant of patients' perspectives of quality of life (QOL) and working status out of analysis-derived components underlying a set of assessment measures of the status of patients with rheumatoid arthritis (RA). METHODS: From the NinJa database in Japan (2012-2014), 1455 RA patients with DAS28 > 3.2 were recruited. Components explaining RA status were derived from principal component analysis of 15 assessment measures. Multivariate regression was used to examine the relative contribution of each identified component to the EuroQOL-5 Dimension Questionnaire score and working status. RESULTS: Among the identified components (patient symptoms, physical disability, evaluated symptoms, patient distress, inflammatory marker, and serological marker), patient distress showed highest contribution to EuroQOL for both male (44.6%) and female patients (39.3%). Physical disability was associated with significantly less participation in paid work in male (odds ratio [OR]; 0.63) and both household and paid work in female (OR; 0.82 and 0.54, respectively), though patient distress showed the strongest association with less participation in both household and paid work in female (OR; 0.64 and 0.45, respectively). CONCLUSION: The approach to latent patient distress using psychological screening tools, concurrently with the treatment to control the activity of arthritis, can be help to improve health related QOL (HRQOL) including work participation. PMID- 29325473 TI - Photographic sequence- drainage process of a myxoid cyst. PMID- 29325474 TI - Visual representation of medical information: the importance of considering the end-user in the design of medical illustrations. AB - This practice led research project explored visual representation through illustrations designed to communicate often complex medical information for different users within Auckland City Hospital, New Zealand. Media and tools were manipulated to affect varying degrees of naturalism or abstraction from reality in the creation of illustrations for a variety of real-life clinical projects, and user feedback on illustration preference gathered from both medical professionals and patients. While all users preferred the most realistic representations of medical information from the illustrations presented, patients often favoured illustrations that depicted a greater amount of information than professionals suggested was necessary. PMID- 29325475 TI - Investigation of the mechanisms of Genkwa Flos hepatotoxicity by a cell metabolomics strategy combined with serum pharmacology in HL-7702 liver cells. AB - 1. To investigate Genkwa Flos hepatotoxicity, a cell metabolomics strategy combined with serum pharmacology was performed on human HL-7702 liver cells in this study. 2. Firstly, cell viability and biochemical indicators were determined and the cell morphology was observed to confirm the cell injury and develop a cell hepatotoxicity model. Then, with the help of cell metabolomics based on UPLC MS, the Genkwa Flos group samples were completely separated from the blank group samples in the score plots and seven upregulated as well as two down-regulated putative biomarkers in the loading plot were identified and confirmed. Besides, two signal molecules and four enzymes involved in biosynthesis pathway of lysophosphatidylcholine and the sphingosine kinase/sphingosine-1-phosphate pathway were determined to investigate the relationship between Genkwa Flos hepatotoxicity and these two classic pathways. Finally, the metabolic pathways related to specific biomarkers and two classic metabolic pathways were analyzed to explain the possible mechanism of Genkwa Flos hepatotoxicity. 3. Based on the results, lipid peroxidation and oxidative stress, phospholipase A2/lysophosphatidylcholine pathway, the disturbance of sphingosine-1-phosphate metabolic profile centered on sphingosine kinase/sphingosine-1-phosphate pathway and fatty acid metabolism might be critical participators in the progression of liver injury induced by Genkwa Flos. PMID- 29325476 TI - Twelve weeks of ombitasvir/paritaprevir/r and dasabuvir without ribavirin is effective and safe in the treatment of patients with HCV genotype 1b infection and compensated cirrhosis: results from a real-world cohort study. AB - OBJECTIVE: To explore the effectiveness and safety of ombitasvir/paritaprevir/ritonavir and dasabuvir (OBV/PTV/r+DSV) for 12 weeks without ribavirin in adults with chronic HCV genotype 1b infection and compensated cirrhosis. METHODS: Observational study of a prospective cohort of adult patients with HCV genotype 1b infection and compensated cirrhosis who received 12 weeks of OBV/PTV/r and DSV without ribavirin. Effectiveness was assessed by recording the percentage of patients achieving sustained virological response at week 12 post-treatment (SVR12). Safety outcomes were based on the incidence of adverse events. RESULTS: Seventy-eight patients were included. The SVR12 rate was 96.1% (95%CI 89.2-99.2). Adverse events were recorded in 78.0% of patients. Of these, 97.7% were grade 1/2. One patient discontinued treatment prematurely owing to adverse events. Eighty-six interactions were detected in 43 patients (55.1%). Overall, 81.4% of interactions required close monitoring, alteration of drug dosage, or timing of administration. In 7.0% of cases, the interactions arose from contraindications that required the suspension of the concomitant drug. In 11.6% of cases, medicinal plants or foods were withdrawn. CONCLUSIONS: The simplified regimen of OBV/PTV/r+DSV administered for 12 weeks is effective and safe in patients with chronic HCV genotype 1b infection and compensated cirrhosis. No adverse reactions related to drug-drug interactions were recorded. PMID- 29325477 TI - Cognitive Performance and Apathy Predict Unemployment in Huntington's Disease Mutation Carriers. AB - Unemployment is common for those with Huntington's disease (HD), a genetic neurodegenerative disorder, and affects patients' quality of life. HD is characterized by motor disturbances, cognitive dysfunction, and psychiatric symptoms. The purpose of this article was to determine which clinical signs of HD are predictive of unemployment. Data for employed (N=114) and unemployed (N=106) HD mutation carriers were used to investigate group differences. Univariate logistic regression analyses, adjusted for age and gender, were performed to determine individual predictors of unemployment. Subsequently, a multivariate logistic regression analysis was performed, entering all significant results from the univariate analyses into one fully adjusted model to determine the strongest predictors. HD mutation carriers with lower cognitive performances and higher apathy scores were more likely to be unemployed than were HD mutation carriers with higher cognitive scores and no signs of apathy. Motor functioning was an independent predictor of unemployment but was not associated with unemployment in the fully adjusted model. Cognitive impairments, especially in the executive domain, and apathy were independent determinants of unemployment in HD mutation carriers. Motor disturbances, the clinical hallmark of HD, did not appear to be the most important predictor for work cessation. These results should be taken into consideration in clinical practice when evaluating HD patients' ability to work. PMID- 29325478 TI - Catatonia Under-Diagnosis in the General Hospital. AB - Catatonia is under-diagnosed in psychiatric settings. No studies have explored the under-diagnosis of catatonia in general hospitals. The authors conducted a retrospective chart review using DSM-5 criteria to diagnose catatonia in medical inpatients between 2011 and 2013. Of 133 case subjects meeting DSM-5 criteria for catatonia retrospectively, 79 had never been diagnosed and 54 had a documented diagnosis. Multiple logistic regression revealed that psychiatry consultation significantly decreased the odds of under-diagnosis of catatonia, whereas presence of agitation, grimacing, or echolalia increased the likelihood of under diagnosis. Under-diagnosed case subjects received significantly lower doses of lorazepam, and increased mortality during admission and increased length of hospital stay both fell short of statistical significance in this group. Catatonia appears to be frequently under-diagnosed in the general hospital, and psychiatry consultation services play a crucial role in its detection and treatment. Strategies to improve recognition and treatment of catatonia should be implemented. PMID- 29325479 TI - High Norwegian prostate cancer mortality: evidence of over-reporting. AB - OBJECTIVE: This study aimed to determine the level of misattribution of prostate cancer deaths in Norway based on the county of Vestfold in the years 2009-2014. MATERIALS AND METHODS: The study included 328 patients registered as dead from prostate cancer (PCD; part I of death certificate), 126 patients with prostate cancer as other significant condition at death (OCD; part II of death certificate) and 310 patients who died with a diagnosis of prostate cancer not registered on the death certificate (PC-DCneg) in Vestfold County in 2009-2014. The complete cohort with patients' names and dates of birth was provided by the Norwegian Institute of Public Health and the Norwegian Cancer Registry. The true cause of death of all patients was evaluated based on patient journals. RESULTS: Over-reporting of prostate cancer deaths in the PCD group was 33% while under reporting in the OCD and PC-DCneg groups was 19% and 5%, respectively. The correlation between registered and observed causes of death was 0.81 (95% confidence interval 0.78-0.83). Misattribution of prostate cancer deaths increased significantly with patient age and decreasing Gleason score. CONCLUSIONS: Prostate cancer mortality statistics in Norway are relatively accurate for patients aged <75 years at death. However, overall accuracy of cause of death assignment is significantly reduced by misattribution among older patients (> 75 years), who represent the large majority of prostate cancer deaths. Over-reporting of prostate cancer deaths among elderly people may not be an exclusively Norwegian phenomenon and may affect prostate cancer mortality statistics in other countries. PMID- 29325480 TI - Overweight and Obesity Among Chinese College Students: An Exploration of Gender as Related to External Environmental Influences. AB - While many studies have examined factors associated with overweight and obesity among college students, no study has yet compared gender differences influencing overweight and obesity using a multilevel framework. The present study examines different influences on overweight and obesity between men and women at both individual and environmental levels. Participants were 11,673 college students identified through a multistage survey sampling process conducted in 50 Chinese universities. The prevalence of overweight and obesity was 9.5% (95% CI [7.7, 11.3]) in the overall study sample, 13.9% (95% CI [11.5, 16.7]) in males and 6.1% (95% CI [4.1, 8.1]) in females, respectively. We found that higher family income, perceived life stress, home region GDP, and university city unemployment were associated with higher overweight and obesity levels in males, independent of other individual- and city-level covariates. However, unlike male students, only unemployment was associated with overweight and obesity among females. Our research indicates Chinese males are more susceptible to overweight and obesity, and are more easily influenced by external variants than Chinese females. This information should be considered in formulating gender-specific policies and designing and implementing effective interventions to reduce the prevalence of overweight and obesity among young adult male college students. PMID- 29325481 TI - Stress management and the role of Rhodiola rosea: a review. AB - OBJECTIVE: Stress describes the physiological reaction to threat or pressure, which manifests as physical symptoms of exhaustion or energy loss and psychological symptoms, including irritability or tension. If untreated, chronic stress or burnout may develop, both are areas of unmet medical need. Evidence based treatment and prevention measures are needed. METHODS: Prevention strategies and existing treatment options for stress-related symptoms were evaluated to establish criteria for an adequate pharmacological approach to stress. The authors reviewed the literature to reach a clinically meaningful strategy for prevention and treatment of persistent stress symptoms and their consequences, including burnout and secondary diseases. RESULTS: Current medication reveals a treatment gap. Most drugs target only psychological or physical stress symptoms. Furthermore, psychotropic medications sometimes prescribed for stress often have unacceptable side effects and bear a risk of overtreatment. Ideally pharmacological therapy should afford comprehensive treatment of all stress symptoms with a favourable safety profile. CONCLUSIONS: Rhodiola rosea extract (RRE) fulfils important requirements. It is the main adaptogen approved by the HMPC/EMA for the indication 'stress' and influences the release of stress hormones while boosting energy metabolism as revealed in animal literature. RRE offers comprehensive treatment of stress symptoms and can prevent chronic stress and stress-related complications. PMID- 29325482 TI - Reply to letter to editor regarding: Correlation between uterine artery Doppler indices and menstrual irregularities among levonorgestrel-releasing intrauterine system and depot medroxyprogesterone acetate users: a prospective observational study. PMID- 29325483 TI - Characterization of Vaccination Policies for Attendance and Employment at Day/Summer Camps in New York State. AB - INTRODUCTION: New York state requires day/summer camps to keep immunization records for all enrolled campers and strongly recommends requiring vaccination for all campers and staff. The objective of this study was to characterize immunization requirements/recommendations for children/adolescents enrolled in and staff employed at day/summer camps in New York state. METHODS: An electronic hyperlink to a 9-question survey instrument was distributed via e-mail to 178 day/summer camps located in New York state cities with a population size greater than 100 000 people. A follow-up telephone survey was offered to nonresponders. The survey instrument included questions pertaining to vaccination documentation policies for campers/staff and the specific vaccines that the camp required/recommended. Fisher's exact and Chi-square tests were used to analyze categorical data. RESULTS: Sixty-five day/summer camps responded to the survey (36.5% response rate): 48 (73.8%) and 23 (41.8%) camps indicated having a policy/procedure for documenting vaccinations for campers and staff, respectively. Camps that had a policy/procedure for campers were more likely to have a policy/procedure for staff ( P = .0007). Age-appropriate vaccinations that were required/recommended for campers by at least 80% of camps included: measles, mumps, and rubella (MMR), diphtheria, tetanus, and pertussis (DTaP), hepatitis B, inactivated/oral poliovirus (IPV/OPV), Haemophilus influenzae type b (Hib), and varicella. Age-appropriate vaccinations that were required/recommended for staff by at least 80% of camps included: DTaP, hepatitis B, IPV/OPV, MMR, meningococcus, varicella, Hib, and tetanus, diphtheria, and pertussis (Tdap). CONCLUSION: Vaccination policies at day/summer camps in New York state appear to be suboptimal. Educational outreach may encourage camps to strengthen their immunization policies, which may reduce the transmission of vaccine-preventable diseases. PMID- 29325485 TI - Hepatitis A immunisation need in nursing students in Turkey. AB - Hepatitis A is a worldwide vaccine-preventable infection. The aim of our study was to determine the serological status of hepatitis A virus (HAV) among first year nursing students in Turkey. A sample of 423 students was used and immunoglobulin G antibodies against HAV were determined quantitatively by enzyme linked immunosorbent assay on each. Overall, 84.6% had no immunity to HAV, making them at risk for HAV, and so susceptible to nosocomial transmission. Nursing students who work in high-risk wards must be vaccinated against hepatitis A. PMID- 29325486 TI - Intensive client-centred occupational therapy in the home improves older adults' occupational performance. Results from a Danish randomized controlled trial. AB - BACKGROUND: There is growing interest in enabling older adults' occupational performance. We tested whether 11 weeks of intensive client-centred occupational therapy (ICC-OT) was superior to usual practice in improving the occupational performance of home-dwelling older adults. METHODS: An assessor-masked randomized controlled trial among adults 60 + with chronic health issues, who received or applied for homecare services. Recruitment took place September 2012 to April 2014. All participants received practical and personal assistance and meal delivery as needed. In addition, they were randomized to receive either a maximum 22 sessions of occupation-based ICC-OT (N = 59) or to receive usual practice with a maximum three sessions of occupational therapy (N = 60). The primary outcome was self-rated occupational performance assessed with the Canadian Occupational Performance Measure (COPM). RESULTS: No important adverse events occurred. ICC-OT was accepted by 46 participants (88%), usual practice by 60 (100%). After 3 months, the ICC-OT-group had improved 1.86 points on COPM performance; the Usual Practice group had improved 0.61 points. The between-group difference was statistically significant (95% confidence interval 0.50 to 2.02), t-test: p = 0.001. CONCLUSIONS: ICC-OT improved older adults' occupational performance more effectively than usual practice. This result may benefit older adults and support programmatic changes. PMID- 29325484 TI - Risk of Erectile Dysfunction After Traumatic Brain Injury: A Nationwide Population-Based Cohort study in Taiwan. AB - INTRODUCTION: In our study, we aimed to investigate the association between a traumatic brain injury (TBI) and subsequent erectile dysfunction (ED). This is a population-based study using the claims dataset from The National Health Insurance Research Database. METHODS: We included 72,642 patients with TBI aged over 20 years, retrospectively, selected from the longitudinal health insurance database during 2000-2010, according to the ICD-9-CM. The control group consisted of 217,872 patients without TBI that were randomly chosen from the database at a ratio of 1:3, with age- and index year matched. Cox proportional hazards analysis was used to estimate the association between the TBI and subsequent ED. RESULTS: After a 10-year follow-up, the incidence rate of ED was higher in the TBI patients when compared with the non-TBI control group (24.66 and 19.07 per 100,000, respectively). Patients with TBI had a higher risk of developing ED than the non-TBI cohort after the adjustment of the confounding factors, such as age, comorbidity, residence of urbanization and locations, seasons, level of care, and insured premiums (adjusted hazard ratio (HR) = 2.569, 95% CI [1.890, 3.492], p < .001). CONCLUSION: This is the first study using a comprehensive nationwide database to analyze the association of ED and TBI in the Asian population. After adjusted the confounding factors, patients with TBI have a significantly higher risk of developing ED, especially organic ED, than the general population. This finding might remind clinicians that it's crucial in early identification and treatment of ED in post-TBI patients. PMID- 29325487 TI - Use of TiO2 photocatalyst supported on residues of polystyrene packaging and its applicability on the removal of food dyes. AB - This work proposes the use of plastic residues, more specifically polystyrene packaging, to support TiO2, used as a photocatalyst in the degradation of erythrosine and Brilliant Blue food dyes. The scanning electron microscopy and Fourier transform infrared spectroscopy analyses exhibited the surface coating and the presence of TiO2 in the material, respectively. The UV/H2O2/TiO2((SP)supported) process was used in the preliminary study, given the high percentage of degradation, operational advantages and greater reductions in peaks related to the aromatic rings when compared to the other processes studied. For the factorial design, the highest efficiency was reached for 150 mg of TiO2, a H2O2 concentration of 11.2 mmol L-1 and pH of 5.0. These conditions were used in the degradation kinetics, which was rapid during the first 30 min, with the concentration of dyes in the solution reaching values close to zero after 180 min. Based on the mechanism proposed, the pseudo-first order kinetic model presented the best adjustment to the experimental data. After treatment, the solution presented greater biodegradability and lower toxicity, verified by the lettuce seed germination test (Lactuca sativa). Thus, the UV/H2O2/TiO2((SP)supported) process showed great potential in the treatment of industrial effluents contaminated by these food dyes, as well as in reusing discarded polystyrene packaging to support the photocatalyst. PMID- 29325488 TI - Effects of adipokinetic hormone and its related peptide on maintaining hemolymph carbohydrate and lipid levels in the two-spotted cricket, Gryllus bimaculatus. AB - Adipokinetic hormone (AKH) regulates energy homeostasis in insects by mobilizing lipid and carbohydrate from the fat body. Here, using RNA sequencing data, we identified cDNAs encoding AKH (GbAKH) and its highly homologous hormone AKH/corazonin-related peptide (GbACP) in the corpora cardiaca of the two-spotted cricket, Gryllus bimaculatus. RT-PCR revealed that GbAKH and GbACP are predominantly expressed in the corpora cardiaca and corpora allata, respectively. Phylogenetic analysis confirmed that the identified GbAKH and GbACP belong to the clades containing other AKHs and ACPs, respectively. Injection of synthetic GbAKH and GbACP elevated hemolymph carbohydrate and lipid levels and reduced food intake significantly. In contrast, knockdown of GbAKH and GbACP by RNA interference increased the food intake, although hemolymph lipid level was not altered. Collectively, this study provides evidence that ACP regulates hemolymph carbohydrate and lipid levels in cricket, possibly collaborative contribution with AKH to the maintenance of energy homeostasis. PMID- 29325490 TI - Allocating less attention to central vision during vection is correlated with less motion sickness. AB - Visually induced motion sickness (VIMS) is a common discomfort response associated with vection-provoking stimuli. It has been suggested that susceptibility to VIMS depends on the ability to regulate visual performance during vection. To test this, 29 participants, with VIMS susceptibility assessed by Motion Sickness Susceptibility Questionnaire, were recruited to undergo three series of sustained attention to response tests (SARTs) while watching dot pattern stimuli known to provoke roll-vection. In general, SARTs performance was impaired in the central visual field (CVF), but improved in peripheral visual field (PVF), suggesting the reallocation of attention during vection. Moreover, VIMS susceptibility was negatively correlated with the effect sizes, suggesting that participants who were less susceptible to VIMS showed better performance in attention re-allocation. Finally, when trained to re-allocation attention from the CVF to the PVF, participants experienced more stable vection. Findings provide a better understanding of VIMS and shed light on possible preventive measures. Practitioner Summary: Allocating less visual attention to central visual field during visual motion stimulation is associated with stronger vection and higher resistance to motion sickness. Virtual reality application designers may utilise the location of visual tasks to strengthen and stabilise vection, while reducing the potential of visually induced motion sickness. PMID- 29325489 TI - Creating effective biocontainment facilities and maintenance protocols for raising specific pathogen-free, severe combined immunodeficient (SCID) pigs. AB - Severe combined immunodeficiency (SCID) is defined by the lack of an adaptive immune system. Mutations causing SCID are found naturally in humans, mice, horses, dogs, and recently in pigs, with the serendipitous discovery of the Iowa State University SCID pigs. As research models, SCID animals are naturally tolerant of xenotransplantation and offer valuable insight into research areas such as regenerative medicine, cancer therapy, as well as immune cell signaling mechanisms. Large-animal biomedical models, particularly pigs, are increasingly essential to advance the efficacy and safety of novel regenerative therapies on human disease. Thus, there is a need to create practical approaches to maintain hygienic severe immunocompromised porcine models for exploratory medical research. Such research often requires stable genetic lines for replication and survival of healthy SCID animals for months post-treatment. A further hurdle in the development of the ISU SCID pig as a biomedical model involved the establishment of facilities and protocols necessary to obtain clean SPF piglets from the conventional pig farm on which they were discovered. A colony of homozygous SCID boars and SPF carrier sows has been created and maintained through selective breeding, bone marrow transplants, innovative husbandry techniques, and the development of biocontainment facilities. PMID- 29325491 TI - Safety of outpatient percutaneous native renal biopsy in systemic autoimmune diseases: results from a monocentric cohort. PMID- 29325492 TI - Illness perception is significantly determined by depression and anxiety in systemic lupus erythematosus. AB - Objectives Illness perception is a cognitive representation influencing physical and psychological functioning and adherence in patients with rheumatic disease. Studies exploring illness perception in systemic lupus erythematosus (SLE) are still scarce and none of them have investigated factors determining illness perception. We aimed to assess illness perception and to identify psychological, clinical and sociodemographic factors that might influence illness perception in SLE. Methods The study involved 80 patients with SLE (87.5% women, mean age 41.56 years). The Brief Illness Perception Questionnaire, State Trait Anxiety Inventory, Beck Depression Inventory, Pittsburgh Sleep Quality Index, Visual Analogue Scale-Pain and Fatigue Severity Scale were used. Clinical and sociodemographic data were collected via structured interview and medical files review. Results Illness perception was significantly positively correlated with anxiety, depression, sleep quality, fatigue and pain while it was not related to age, education, steroid treatment, disease duration and activity (SLEDAI) or organ damage (SLICC/ACR). Regression analysis revealed that state anxiety and depression explained 43% of illness perception variance. Cluster analysis identified three patient groups among which the middle-aged group had the most negative illness perception, the highest levels of anxiety, depression, pain and fatigue, and the poorest sleep quality. Conclusions The study has proved a significant relationship between negative illness perception and anxiety and depression. Patients reporting fatigue, poor sleep and pain might have special needs in terms of psychological intervention focused on negative illness perception and distress symptoms. Multidisciplinary care in managing SLE seems to be of great importance. PMID- 29325493 TI - Simulation-based evaluation of an in-vehicle smart situation awareness enhancement system. AB - Situation awareness (SA) constitutes a critical factor in road safety, strongly related to accidents. This paper describes the evaluation of a proposed SA enhancement system (SAES) that exploits augmented reality through a head-up display (HUD). Two SAES designs were evaluation (information rich vs. minimal information) using a custom-made simulator and the Situation Awareness Global Assessment Technique with performance and EEG measures. The paper describes the process of assessing the SA of drivers using the SAES, through a series of experiments with participants in a Cave Automatic Virtual Environment. The effectiveness of the SAES was tested in a within-group research design. The results showed that the information rich (radar-style display) was superior to the minimal (arrow hazard indicator) design and that both SAES improved drivers' SA and performance compared to the control (no HUD) design. Practitioner Summary: Even though driver situation awareness is considered as one of the leading causes of road accidents, little has been done to enhance it. The current study demonstrates the positive effect of a proposed situation awareness enhancement system on driver situation awareness, through an experiment using virtual prototyping in a simulator. PMID- 29325494 TI - A Bayesian approach for the identification of patient-specific parameters in a dialysis kinetic model. AB - Hemodialysis is the most common therapy to treat renal insufficiency. However, notwithstanding the recent improvements, hemodialysis is still associated with a non-negligible rate of comorbidities, which could be reduced by customizing the treatment. Many differential compartment models have been developed to describe the mass balance of blood electrolytes and catabolites during hemodialysis, with the goal of improving and controlling hemodialysis sessions. However, these models often refer to an average uremic patient, while on the contrary the clinical need for customization requires patient-specific models. In this work, we assume that the customization can be obtained by means of patient-specific model parameters. We propose and validate a Bayesian approach to estimate the patient-specific parameters of a multi-compartment model, and to predict the single patient's response to the treatment, in order to prevent intra-dialysis complications. The likelihood function is obtained by means of a discretized version of the multi-compartment model, where the discretization is in terms of a Runge-Kutta method to guarantee convergence, and the posterior densities of model parameters are obtained through Markov Chain Monte Carlo simulation. Results show fair estimations and the applicability in the clinical practice. PMID- 29325496 TI - Maternal Thyrotropin Receptor Antibody Concentration and the Risk of Fetal and Neonatal Thyrotoxicosis: A Systematic Review. AB - BACKGROUND: In pregnant women with Graves' disease, maternal thyrotropin receptor antibodies (TRAb) can cross the placenta and induce fetal or neonatal thyrotoxicosis. Symptoms of fetal thyrotoxicosis are tachycardia, intrauterine growth restriction, and intra-uterine death. Recommendations on an upper limit of TRAb concentrations below which intensive fetal monitoring can be safely omitted vary between different guidelines. The objective of this study was to define an evidence-based cutoff level for maternal TRAb necessitating additional fetal monitoring during pregnancy. METHODS: A literature search was performed to identify studies on pregnant women with Graves' disease and fetal and/or neonatal thyrotoxicosis. Only studies that reported TRAb were included. RESULTS: From a total of 229 identified titles, 20 articles could be included in the analysis. A total of 53 cases of fetal and/or neonatal thyrotoxicosis were described. The lowest level of maternal TRAb leading to neonatal thyrotoxicosis was 4.4 U/L, which corresponds to 3.7 times the upper limit of normal. The level of evidence for this threshold is moderate to low. CONCLUSION: In women with Graves' disease, intensive fetal monitoring is recommended when maternal TRAb concentrations are >3.7 times the upper limit of normal. This cutoff level should be interpreted with caution, since evidence is limited. PMID- 29325495 TI - Management of cancer-associated venous thromboembolism - a case-based practical approach. AB - In patients with solid tumours or haematological malignancies, venous thromboembolism (VTE) is a leading cause of death and significantly contributes to morbidity and healthcare resource utilization. Current practice guidelines recommend long-term anticoagulation with low-molecular-weight heparin (LMWH) as the treatment of choice for cancer-associated VTE, based on clinical trial data showing an overall improved safety and efficacy profile of LMWH compared to vitamin K antagonists. However, several open questions remain, e. g. with regard to the intensity and duration of LMWH therapy; moreover, recent real-world evidence indicates that adherence to parenteral anticoagulation with LMWH over the course of treatment is poor in clinical practice. In this regard, the direct oral factor Xa or thrombin inhibitors (DOACs) have emerged as potential alternatives in the management of patients with cancer-associated VTE, albeit findings from randomized controlled studies with a direct head-to-head comparison of DOACs with LMWH, the current standard of care, are still lacking. Based on the case of a lymphoma patient experiencing symptomatic pulmonary embolism during immunochemotherapy, this article aims at both highlighting the current state-of the-art approach to cancer-associated VTE and pointing out some of the unresolved, controversial issues clinicians have to face when taking care of haematology and oncology patients with already established or with high risk of developing VTE. These issues include the management of patients with incidental pulmonary embolism or thrombocytopenia, the use of DOACs, and the initiation of pharmacological thromboprophylaxis in non-surgical cancer patients. PMID- 29325498 TI - The structure of the General Health Questionnaire (GHQ-12): two meta-analytic factor analyses. AB - The General Health Questionnaire (GHQ-12) is a popular measure of psychological distress. Despite its widespread use, an ongoing controversy pertains to its internal structure. Although the GHQ-12 was originally constructed to capture a unitary construct, empirical studies identified different factor structures. Therefore, this study examined the dimensionality of the GHQ-12 in two independent meta-analyses. The first meta-analysis used summary data published in 38 primary studies (total N = 76,473). Meta-analytic exploratory factor analyses identified two factors formed by negatively and positively worded items. The second meta-analysis included individual responses of 410,640 participants from 84 independent samples. Meta-analytic confirmatory factor analyses corroborated the two-dimensional structure of the GHQ-12. However, bifactor modelling showed that most of the variance was explained by a general factor. Therefore, subscale scores reflected rather limited unique variance. Overall, the two meta-analyses demonstrated that the GHQ-12 is essentially unidimensional. It is not recommended to use and interpret subscale scores because they primarily reflect general mental health rather than distinct constructs. PMID- 29325497 TI - Impact and Moderating Variables of an Intervention Promoting Physical Activity Among Children: Results From a Pilot Study. AB - This pilot study pursued three objectives: to assess the effect of a 1-month multilevel intervention on the PA of children, to assess the impact of the intervention on the theory of planned behavior (TPB) variables, and to evaluate the extent to which the impact of the intervention on PA and TPB variables varied according to personal (i.e., gender and age) and situational (i.e., class and school) moderating variables. Children were aged 7 to 11 years ( n = 306). Analyses revealed a significant increase of PA practice and TPB variables ( ps < .001). Age (i.e., being a younger child) was associated with a higher increase on attitude and perceived control ( ps < .01). The class or the school levels explained a meaningful variance in the evolution of PA or TPB variables (intraclass correlation coefficients > .10). The present study reports the interest and feasibility of a multilevel intervention to increase PA and TPB variables in children. PMID- 29325499 TI - Insights and barriers to clinical use of serotonin transporter pharmacogenetics in antidepressant therapy. PMID- 29325500 TI - Images in Vascular Medicine: Cystic adventitial disease involving external iliac vein: A rare cause of unilateral limb swelling. PMID- 29325501 TI - Venous hemodynamics assessed with air plethysmography in legs with lymphedema. AB - This study was conducted to identify specific abnormalities using the results from air plethysmography in legs with lymphedema. A routine air plethysmography exercise protocol was performed in 31 patients with unilateral leg lymphedema, and the results were compared with those of 53 patients with unilateral great saphenous vein reflux and 15 normal subjects. The venous filling index in legs with lymphedema (2.1 +/- 1.2 mL/sec) was smaller than in legs with great saphenous vein reflux (6.4 +/- 4.1 mL/sec, p < 0.05), but was not different from that in normal legs (1.9 +/- 1.2 mL/sec). The ejection fraction was similar in all groups. The residual volume fraction in legs with lymphedema (35 +/- 32%) was larger than that in normal subjects (13 +/- 23%, p < 0.05), but was not significantly different from that in the contralateral leg of the lymphedema patients (32 +/- 27%). In conclusion, we found no specific air plethysmography findings in uncomplicated lymphedema. PMID- 29325502 TI - REHEARSAL Using Patient-Specific Simulation to Improve Endovascular Efficiency. AB - OBJECTIVE: To determine whether rehearsal using patient-specific information loaded onto an endovascular simulator prior to carotid stenting improves procedural efficiency and outcomes. METHODS: Patients scheduled for carotid artery stenting who had adequate preoperative computed tomography (CT) imaging were considered for enrollment. After obtaining informed consent, patients were randomized to control versus rehearsal groups. Those in the rehearsal group had their CT scans loaded into an endovascular simulator (Angio Mentor) followed by case rehearsal by the attending on the simulator within 24 hours prior to the procedure; control patients underwent routine carotid stenting without rehearsal. Contrast usage, fluoroscopy time, and timing of procedural steps were recorded by a blinded observer during the actual case to determine benefit. RESULTS: Fifteen patients were enrolled, with 6 patients randomized to the rehearsal group and 9 to the control. All measures showed improvement in the rehearsal group: Mean contrast volume (59.2 vs 76.9 mL), fluoroscopy time (11.4 vs 19.4 minutes), overall operative time (31.9 vs 42.5 minutes), time to common carotid sheath placement (17.0 vs 23.3 minutes), and total carotid sheath dwell time (14.9 vs 19.2 minutes) were all lower (more favorable) in the rehearsal group. The study was terminated early due to the lack of simulator access, and all P values were thus greater than .05 due to the lack of power. No strokes or other adverse events occurred in either group. CONCLUSION: Case-specific simulator rehearsal using patient-specific imaging prior to carotid stenting is associated with numerically less contrast usage, operative time, and radiation exposure, although this study was underpowered. PMID- 29325503 TI - Immunogenetics of prostate cancer: a still unexplored field of study. AB - The immune system is a double-edged sword with regard to the prostate cancer (PCa) battle. Immunogenetics, the study of the potential role of immune-related polymorphisms, is taking its first steps in the treatment of this malignancy. This review summarizes the most recent papers addressing the potential of immunogenetics in PCa, reporting immune-related polymorphisms associated with tumor aggressiveness, treatment toxicity and patients' prognosis. With some peculiarities, RNASEL, IL-6, IL-10, IL-1beta and MMP7 have arisen as the most significant biomarkers in PCa treatment and management, having a potential clinical role. Validation prospective clinical studies are required to translate immunogenetics into precision treatment of PCa. PMID- 29325505 TI - The relationship between cholesterol level and Alzheimer's disease-associated APP proteolysis/Abeta metabolism. AB - Globally, Alzheimer's disease (AD) is the most prevalent neurodegenerative disease in the elderly population, the hallmark of which is amyloid beta (Abeta) peptide. Energy metabolism and AD pathogenesis are believed to influence one another. Different cholesterol levels are thought to influence various steps in neurotoxic Abeta generation, including amyloid precursor protein (APP) proteolysis and the corresponding activities of alpha-, beta-, and gamma secretases. In addition, cholesterol has been proved to mediate Abeta metabolism, such as its fibrillation, transportation, degradation, and clearance processes. The current review discusses in detail the intimate interaction between the cholesterol level and the various aspects of APP proteolysis and Abeta metabolism. PMID- 29325504 TI - Platelet-to-lymphocyte ratio, neutrophil-to-lymphocyte ratio, and platelet indices in patients with acute deep vein thrombosis. AB - BACKGROUND: Inflammation is associated with an increased risk of thrombotic events and complete blood count (CBC) is an easily measured test. The purpose of this study was to evaluate the value of CBC relative parameters including mean platelet volume (MPV), platelet-to-lymphocyte ratio (PLR), mean platelet volume to-lymphocyte ratio (MPVLR), and neutrophil-to-lymphocyte ratio (NLR) for patients with acute deep vein thrombosis (DVT). PATIENTS AND METHODS: A total of 115 patients with unprovoked DVT of the lower extremities and 105 controls were recruited in this study. Blood samples were drawn from all participants to obtain the concentrations of CBCs and D-dimers. RESULTS: MPVs (P = 0.044), PLRs (P = 0.005), MPVLRs (P = 0.001), and NLRs (P < 0.0001) were significantly higher in acute DVT patients compared to controls. The MPV was inversely correlated with platelet count (P < 0.0001) and the NLR was positively associated with D-dimers (P = 0.002) and the PLR (P < 0.0001). Notably, on multivariate logistic regression analysis, NLRs and D-dimers were independent risk factors of acute DVT (OR: 1.889, P = 0.024; OR: 1.009, P < 0.0001, respectively). CONCLUSIONS: MPV, PLR, MPVLR, and NLR have potential diagnostic values for patients with unprovoked DVT. NLR is an independent risk factor related to DVT. PMID- 29325506 TI - Clinical Impact of Detectable Antithyroglobulin Antibodies Below the Reference Limit (Borderline) in Patients with Papillary Thyroid Carcinoma with Undetectable Serum Thyroglobulin and Normal Neck Ultrasonography After Ablation: A Prospective Study. AB - BACKGROUND: Interference of antithyroglobulin antibodies (TgAb) with serum thyroglobulin (Tg) can occur even at detectable TgAb concentrations below the reference limit (borderline TgAb). Thus, borderline TgAb is considered as TgAb positivity in patients with thyroid cancer. This prospective study evaluated patients with papillary thyroid carcinoma with undetectable Tg and normal neck ultrasonography (US) after total thyroidectomy and ablation with 131I, and compared tumor persistence/recurrence and long-term Tg and TgAb behavior in those with borderline versus undetectable TgAb. METHODS: A total of 576 patients were evaluated, divided into two groups: group A with undetectable TgAb (n = 420), and group B with borderline TgAb (n = 156). RESULTS: Groups A and B were similar in terms of patient and tumor characteristics. The time of follow-up ranged from 24 to 120 months. During follow-up, 11 (2.6%) patients in group A and 5 (3.2%) in group B developed a recurrence (p = 0.77). In group A, recurrences occurred in 9/390 patients who continued to have undetectable TgAb and in 1/9 patients who progressed to borderline TgAb. In group B, recurrences were detected in 1/84 patients who progressed to have undetectable TgAb, in 1/45 who still had borderline TgAb, and in 3/12 who developed elevated TgAb. In the presence of Tg levels <0.2 ng/mL, recurrences were detected in 2/486 patients with undetectable TgAb, in 0/67 with borderline TgAb, and in 3/12 with elevated TgAb. The results of post-therapy whole-body scanning (RxWBS) of 216 patients with Tg <=0.2 ng/mL and normal US at the time of ablation were also analyzed. In low-risk patients, none of the 40 patients with borderline TgAb and none of the 94 with undetectable TgAb exhibited ectopic uptake on RxWBS. In intermediate-risk patients, lymph node metastases were detected by RxWBS in 1/25 (4%) with borderline TgAb and in 2/57 (3.5%) with undetectable TgAb. CONCLUSIONS: The results suggest that among low- or intermediate-risk patients with undetectable Tg and normal US after thyroidectomy, those with borderline TgAb are at no greater risk of tumor persistence or recurrence than those with undetectable TgAb. When undetectable Tg levels persist, recurrence should be suspected in the case of a TgAb elevation above the reference limit. PMID- 29325507 TI - Research Collaboration in a Communication Rights Campaign: Lessons Learned. AB - In building public support for social change, activists in communities of color routinely approach broader audiences via news media. Communities of color, however, routinely face disparities that limit their access to media including local news media outlets. This lack of access mirrors inequalities in political, social, and economic arenas and can slow public awareness campaigns to address disparities in health, environmental, and other quality-of-life issues. I describe two community-based collaborative action research studies that documented and challenged how local television newscasts underrepresented and misrepresented three communities of color in Boston. The linkage between communication rights and campaigns to address quality-of-life issues is presented, as well as unresolved challenges in the collaborative research process. The study has implications for environmental health campaigns. PMID- 29325508 TI - Mesh nebulizers have become the first choice for new nebulized pharmaceutical drug developments. AB - In the 24 years since first being marketed, the mesh nebulizer has been developed by five main manufacturers into a viable solution for the delivery of high-value nebulized drugs. Mesh nebulizers provide increased portability, convenience and energy efficiency along with similar lung deposition and increased ease of use compared with jet nebulizers. An analysis of EU and US clinical trial databases has shown that mesh nebulizers are now preferred over jet nebulizers for clinical trials sponsored by pharmaceutical companies. The results show a strong preference for the use of mesh nebulizers in trials involving high cost and niche therapy areas. Built-in capability to optimize the way patients use their mesh nebulizer and manage their disease will further increase uptake. [Formula: see text]. PMID- 29325509 TI - Terbinafine hydrochloride nail lacquer for the management of onychomycosis: formulation, characterization and in vitro evaluation. AB - AIM: The present investigation's intention was to develop an optimized nail lacquer (NL) for the management of onychomycosis. MATERIALS & METHODS: The NL was optimized statistically adopting 32 full factorial design having different polymer ratios and solvent ratios. The formulations were assessed for drug permeation drying time and peak adhesive strength of the film. Characterization was done using techniques including attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), x-ray diffraction (XRD), etc. RESULTS & CONCLUSION: The formulation that had 1:1 polymer ratio and 80:20 solvent ratio was chosen as the optimized formulation. In vitro permeation studies showed better penetration (~3.25-fold) as well as retention (~11-fold) of the optimized NL formulation in the animal hoof as compared with the commercial formulation. The findings of in vitro and ex vivo studies elucidated the potential of the optimized formulation. [Formula: see text]. PMID- 29325510 TI - Albendazole nanocrystals with improved pharmacokinetic performance in mice. AB - AIM: Albendazole (ABZ) is a broad-spectrum antiparasitic agent with poor aqueous solubility, which leads to poor/erratic bioavailability and therapeutic failures. Here, we aimed to produce a novel formulation of ABZ nanocrystals (ABZNC) and assess its pharmacokinetic performance in mice. Results/methodology: ABZNC were prepared by high-pressure homogenization and spray-drying processes. Redispersion capacity and solid yield were measured in order to obtain an optimized product. The final particle size was 415.69+/-7.40 nm and the solid yield was 72.32%. The pharmacokinetic parameters obtained in a mice model for ABZNC were enhanced (p < 0.05) with respect to the control formulation. CONCLUSION: ABZNC with improved pharmacokinetic behavior were produced by a simple, inexpensive and potentially scalable methodology. PMID- 29325511 TI - Recent advances in topical nano drug-delivery systems for the anterior ocular segment. AB - Over the past decade, there has been a rise in the number of clinical cases of moderate to severe anterior segment ocular diseases. Conventional topical ophthalmic formulations have several limitations - to address which, novel drug delivery systems are needed. Additionally, formidable physiological barriers limit ocular bioavailability through the topical route of application. During the last decade, various nano-scaled ocular drug-delivery strategies have been reported. Some of these exploratory, topical, noninvasive approaches have shown promise in improving penetration into the anterior segment tissues of the eye. In this article, we review the available literature with respect to the safety, efficiency and effectiveness of these nano systems. PMID- 29325512 TI - An industry update: the latest developments in therapeutic delivery. AB - The present industry update covers the period 1 October-31 October 2017, with information sourced from company press releases, regulatory and patent agencies as well as scientific literature. While the corporate news in October was traditionally dominated by the announcement of the third quarter results, with most of them showing market and revenue growth but also an increasing number of initial public offerings after years of slower financial development, we also saw trends continuing toward an increasing number of convergences of drugs with nanotechnology, devices and 21st century information technology. Whether it is using E Ink's 'Smart Patch', AstraZeneca's autoinjector, Elektrofi's Elektroject suspensions or NanOlogy's NanoPac, there is an ever increasing number of combinations dof devices, drugs and applications reaching, more and more the clinic and the market. Controlled release is another feature increasingly addressed by many of the above innovations. For example, the drug-loaded x-ray imageable microscopic beads that have been developed by researchers at UCL Cancer Institute (London, UK) take this one step further in order to pursue local, controlled and in situ validated local delivery. PMID- 29325514 TI - Editor's Note. PMID- 29325513 TI - Use of methylene blue in the prevention of recurrent intra-abdominal postoperative adhesions. AB - Objective To evaluate the efficacy of methylene blue in preventing recurrent symptomatic postoperative adhesions. Methods Patients with a history of >2 surgeries for intra-abdominal adhesion-related complications were selected for this study. Adhesiolysis surgery was subsequently performed using administration of 1% methylene blue. The follow-up period was 28.5 +/- 11.1 months. Results Data were available from 20 patients (seven men and 13 women) whose mean +/- SD age was 51.2 +/- 11.4 years. Adhesions took longer to become symptomatic after the first abdominal surgery when the initial pathology was malignant compared with benign. However, the recurrence of adhesions after a previous adhesiolysis surgery had a similar time onset regardless of the initial disease. Following adhesiolysis surgery with methylene blue, the majority of patients did not present with symptoms associated with adhesion complications (i.e., chronic abdominal pain, bowel obstruction) for the length of the follow-up period. Conclusions The use of methylene blue during adhesiolysis surgery appears to reduce the recurrence of adhesion-related symptoms, suggesting a beneficial effect in the prevention of adhesion formation. PMID- 29325515 TI - Safer chairs for elderly patients: design evaluation using electromyography and force measurement. AB - A vast majority of patient fall events in hospitals involve the elderly. In inpatient care settings, despite the risk of fall, patients are encouraged to leave their bed, move around their room, and sit on their chair to progress in their healing. Despite the vital role of patient chair design in improving recovery, few studies have examined the ergonomic requirements of safe patient chairs. This study examined the impact of manipulating horizontal and vertical positions of armrests in a test chair on required physical effort during Stand-to Sit-to-Stand (St-Si-St) transitions among 15 elderly women. Physical effort was measured using: (1) surface electromyography (sEMG); (2) force measurement by load cells; (3) video recording. Findings showed non-linear patterns of change in required physical effort due to changes in armrests' height and distance. It was also found that minimum effort is associated with armrests higher and farther apart than those in typical patient chairs. Practitioner Summary: Safe chairs are essential for inpatient recovery, yet their ergonomic features are not investigated. Impact of changes in chair armrests on required physical effort was examined using electromyography, force measurement and video recording. Armrests higher and farther apart than those in typical patient chairs may be safer for elderly patients. PMID- 29325516 TI - Brucellosis remains a neglected disease in the developing world: a call for interdisciplinary action. AB - BACKGROUND: Brucellosis is an endemic zoonotic disease in most of the developing world that causes devastating losses to the livestock industry and small-scale livestock holders. Infected animals exhibit clinical signs that are of economic significance to stakeholders and include reduced fertility, abortion, poor weight gain, lost draught power, and a substantial decline in milk production. In humans, brucellosis typically manifests as a variety of non-specific clinical signs. Chronicity and recurring febrile conditions, as well as devastating complications in pregnant women are common sequelae. DISCUSSION: In regions where the disease is endemic, brucellosis has far-reaching and deleterious effects on humans and animals alike. Deeply entrenched social misconceptions and fear of government intervention contribute to this disease continuing to smolder unchecked in most of the developing world, thereby limiting economic growth and inhibiting access to international markets. The losses in livestock productivity compromise food security and lead to shifts in the cognitive competency of the working generation, influence the propagation of gender inequality, and cause profound emotional suffering in farmers whose herds are affected. The acute and chronic symptoms of the disease in humans can result in a significant loss of workdays and a decline in the socioeconomic status of infected persons and their families from the associated loss of income. The burden of the disease to society includes significant human healthcare costs for diagnosis and treatment, and non healthcare costs such as public education efforts to reduce disease transmission. CONCLUSION: Brucellosis places significant burdens on the human healthcare system and limits the economic growth of individuals, communities, and nations where such development is especially important to diminish the prevalence of poverty. The implementation of public policy focused on mitigating the socioeconomic effects of brucellosis in human and animal populations is desperately needed. When developing a plan to mitigate the associated consequences, it is vital to consider both the abstract and quantifiable effects. This requires an interdisciplinary and collaborative, or One Health, approach that consists of public education, the development of an infrastructure for disease surveillance and reporting in both veterinary and medical fields, and campaigns for control in livestock and wildlife species. PMID- 29325517 TI - A cluster randomised controlled trial evaluating the effectiveness and cost effectiveness of the daily mile on childhood obesity and wellbeing; the Birmingham daily mile protocol. AB - BACKGROUND: Childhood obesity prevention is a public health priority. Children spend a large proportion of their waking time in school; therefore this is an appropriate setting to implement obesity prevention initiatives. Anecdotal reports suggest that implementing The Daily Mile in schools has had positive effects on childhood obesity, academic attainment and wellbeing. This trial aims to measure the effectiveness of The Daily Mile for improving health and wellbeing. METHODS: This protocol describes a cluster randomised controlled trial (RCT) in 40 primary schools located in Birmingham, UK. Eligible participants are children in years 3 (aged 7-8) and 5 (aged 9-10). The study compares The Daily Mile (intervention) to usual practice (control) in relation to health and wellbeing. The Daily Mile intervention involves an additional 15 min of running or walking integrated into the school day, throughout a 12 month study period. The primary clinical outcome is body mass index (BMI) z-scores at 12 months following introduction of the intervention. The cost per Quality Adjusted Life Year (QALY) is the primary outcome of the economic evaluation. Secondary outcomes include wellbeing, physical fitness and teacher reported academic attainment. DISCUSSION: This study is the first RCT investigating the clinical and cost effectiveness of The Daily Mile. A range of outcomes will be measured to evaluate the broader wellbeing and academic benefits in addition to clinical outcomes typically measured in childhood obesity prevention trials. The intervention is simple and low-cost, therefore if the benefits are demonstrated it has enormous potential to influence future policy. TRIAL REGISTRATION: ISRCTN: 12698269 . Date protocol registered 27th October 2016. PMID- 29325518 TI - Experiences of gestational diabetes and gestational diabetes care: a focus group and interview study. AB - BACKGROUND: Gestational diabetes mellitus (GDM) is an increasingly common condition of pregnancy. It is associated with adverse fetal, infant and maternal outcomes, as well as an increased risk of GDM in future pregnancies and type 2 diabetes for both mother and offspring. Previous studies have shown that GDM can result in an emotionally distressing pregnancy, but there is little research on the patient experience of GDM care, especially of a demographically diverse UK population. The aim of this research was to explore the experiences of GDM and GDM care for a group of women attending a large diabetes pregnancy unit in southeast London, UK, in order to improve care. METHODS: Framework analysis was used to support an integrated analysis of data from six focus groups with 35 women and semi-structured interviews with 15 women, held in 2015. Participants were purposively sampled and were representative of the population being studied in terms of ethnicity, age, deprivation score and body mass index (BMI). RESULTS: We identified seven themes: the disrupted pregnancy, projected anxiety, reproductive asceticism, women as baby machines, perceived stigma, lack of shared understanding and postpartum abandonment. These themes highlight the often distressing experience of GDM. While most women were grateful for the intensive support they received during pregnancy, the costs to their personal autonomy were high. Women described feeling valued solely as a means to produce a healthy infant, and felt chastised if they failed to adhere to the behaviours required to achieve this. This sometimes had an enduring impact to the potential detriment of women's long-term psychological and physical health. CONCLUSIONS: This study reveals the experiences of a demographically diverse group of patients with GDM, reflecting findings from previous studies globally and extending analysis to the context of improving care. Healthcare delivery may need to be reoriented to improve the pregnancy experience and help ensure women are engaged and attentive to their own health, particularly after birth, without compromising clinical pregnancy outcomes. Areas for consideration in GDM healthcare include: improved management of emotional responses to GDM; a more motivational approach; rethinking the medicalisation of care; and improved postpartum care. PMID- 29325519 TI - Providers' preferences for pediatric oral health information in the electronic health record: a cross-sectional survey. AB - BACKGROUND: The majority of primary care physicians support integration of children's oral health promotion and disease prevention into their practices but can experience challenges integrating oral health services into their workflow. Most electronic health records (EHRs) in primary care settings do not include oral health information for pediatric patients. Therefore, it is important to understand providers' preferences for oral health information within the EHR. The objectives of this study are to assess (1) the relative importance of various elements of pediatric oral health information for primary care providers to have in the EHR and (2) the extent to which practice and provider characteristics are associated with these information preferences. METHODS: We surveyed a sample of primary care physicians who conducted Medicaid well-child visits in North Carolina from August - December 2013. Using descriptive statistics, we analyzed primary care physicians' oral health information preferences relative to their information preferences for traditional preventive aspects of well-child visits. Furthermore, we analyzed associations between oral health information preferences and provider- and practice-level characteristics using an ordinary least squares regression model. RESULTS: Fewer primary care providers reported that pediatric oral health information is "very important," as compared to more traditional elements of primary care information, such as tracking immunizations. However, the majority of respondents reported some elements of oral health information as being very important. Also, we found positive associations between the percentage of well child visits in which oral health screenings and oral health referrals are performed and the reported importance of having pediatric oral health information in the EHR. CONCLUSIONS: Incorporating oral health information into the EHR may be desirable for providers, particularly those who perform oral health screenings and dental referrals. PMID- 29325520 TI - Factors associated with low patient satisfaction in out-of-hours primary care in Denmark - a population-based cross-sectional study. AB - BACKGROUND: Low patient satisfaction with the quality of out-of-hours primary care (OOH-PC) has been linked with several individual and organizational factors. However, findings have been ambiguous and may not apply to the Danish out-of hours (OOH) setting in which general practitioners (GPs) perform the initial telephone triage. This study aimed to identify patient-related, GP-related and organizational factors associated with low patient satisfaction. METHODS: The study was based on data from a 1-year population-based survey of OOH-PC (LV-KOS) in the Central Denmark Region in 2010-2011. GPs on OOH duty completed an electronic questionnaire in the OOH computer system, and the registered patients received a subsequent postal questionnaire focusing on contact evaluation, waiting time, demographic characteristics and general self-perceived health. Associations were analysed using multivariable logistic regression with dissatisfaction as the dependent variable. RESULTS: The patient response rate was 50.6%. For all contact types, 82.5% of the patients were satisfied with the OOH PC service. More patients were dissatisfied with telephone consultations than with clinic consultations or home visits (8.5% vs. 6.0% and 4.3%, respectively). Contacts assessed by the GP as 'not severe' were associated with dissatisfaction for telephone consultations and home visits. Poor general self-perceived health was associated with dissatisfaction for all contact types. Living in urban areas was associated with dissatisfaction for telephone consultations, while unacceptable waiting time was associated with dissatisfaction for all contact types. CONCLUSIONS: We found a high level of patient satisfaction with the OOH-PC service. The only factors affecting patient satisfaction across all contact types were unacceptable waiting time and poor general self-perceived health. For the other investigated factors, patient satisfaction depended on the type of contact. Generally, patients contacting for GP-assessed non-severe health problem and patients living in urban areas were more dissatisfied. PMID- 29325521 TI - Adjuvant treatment of resectable biliary tract cancer with cisplatin plus gemcitabine: A prospective single center phase II study. AB - BACKGROUND: Biliary tract cancer (BTC) is a dismal disease, even after curative intent surgery. We conducted this prospective, non-randomized phase II study to evaluate the feasibility and efficacy of cisplatin and gemcitabine as adjuvant treatment in patients with resected BTC. METHODS: Patients initially received gemcitabine 1000 mg/m2 alone on days 1, 8 and 15 every 28-days for a total of six cycles (single agent cohort), and after protocol amendment a combination therapy with gemcitabine 1000 mg/m2 and cisplatin 25 mg/m2 on days 1 and 8 was administered every 21 days for a total of eight cycles (combined regimen cohort). Treatment was planned to start within eight weeks after curative intent resection. Adverse events, disease-free survival and overall survival were assessed. RESULTS: Overall 30 patients were enrolled in the study from August 2008 and last patient was enrolled at 2nd December 2014. The follow-up of the patients ended at 31st December 2016. The first 9 patients received single-agent gemcitabine. The interim analysis met the predefined feasibility criteria and, from September 2010 on, the second group of 21 patients received the combination of cisplatin plus gemcitabine. In the single-agent cohort with gemcitabine the median relative dose intensity (RDI) was 100% (IQR 88.3-100). Patients treated with the combination cisplatin-gemcitabine received an overall median RDI of 100% (IQR 50-100) for cisplatin and 100% (IQR 75-100) for gemcitabine respectively. The most significant non-hematological adverse events (grade 3 or 4) were fatigue (20%), infections during neutropenia (10%), and two cases of biliary sepsis (7%). Abnormal liver function was seen in 10% of the patients. One patient died due to infectious complications during treatment with cisplatin and gemcitabine. The median disease-free survival (DFS) was 14.9 months (95% CI 0-33.8) with a corresponding 3-year DFS of 43.1 +/- 9.1%. The median overall survival (OS) was 40.6 months (95% CI 18.8-62.3) with a 3-year OS of 55.7 +/- 9.2%. No statistically significant differences in survival were seen between the two treatment cohorts. CONCLUSION: Adjuvant chemotherapy with gemcitabine with or without cisplatin was well tolerated and resulted in promising survival of the patients. TRIAL REGISTRATION: The study was retrospectively registered on 25th June 2009 at clinicaltrials.gov ( NCT01073839 ). PMID- 29325522 TI - Correction to: Relatively frequent switching of transcription start sites during cerebellar development. AB - CORRECTION: The authors of the original article [1] would like to recognize the critical contribution of core members of the FANTOM5 Consortium, who played the critical role of HeliScopeCAGE sequencing experiments, quality control of tag reads and processing of the raw sequencing data. PMID- 29325523 TI - Fanconi anemia with sun-sensitivity caused by a Xeroderma pigmentosum-associated missense mutation in XPF. AB - BACKGROUND: Fanconi anemia (FA) is an inherited genomic instability disorder with congenital and developmental abnormalities, bone marrow failure and predisposition to cancer early in life, and cellular sensitivity to DNA interstrand crosslinks. CASE PRESENTATION: A fifty-one-year old female patient, initially diagnosed with FA in childhood on the basis of classic features and increased chromosomal breakage, and remarkable sun-sensitivity is described. She only ever had mild haematological abnormalities and no history of malignancy. To identify and characterise the genetic defect in this lady, who is one of the oldest reported FA patients, we used whole-exome sequencing for identification of causative mutations, and functionally characterized the cellular phenotype. Detection of the novel splice site mutation c.793-2A > G and the previously described missense mutation c.1765C > T (p.Arg589Trp) in XPF/ERCC4/FANCQ assign her as the third individual of complementation group FA-Q. Ectopic expression of wildtype, but not mutant, XPF/ERCC4/FANCQ, in patient-derived fibroblasts rescued cellular resistance to DNA interstrand-crosslinking agents. Patient derived FA-Q cells showed impaired nuclear excision repair capacity. However, mutated XPF/ERCC4/FANCQ protein in our patient's cells, as in the two other patients with FA-Q, was detectable on chromatin, in contrast to XP-F cells, where missense mutant protein failed to properly translocate to the nucleus. CONCLUSIONS: Patients with FA characteristics and UV sensitivity should be tested for mutations in XPF/ERCC4/FANCQ. The missense mutation p.Arg589Trp was previously detected in patients diagnosed with Xeroderma pigmentosum or Cockayne syndrome. Hence, phenotypic manifestations associated with this XPF/ERCC4/ FANCQ mutation are highly variable. PMID- 29325524 TI - Posterior decompression and occipitocervical fixation followed by intraoperative vertebroplasty for metastatic involvement of the axis. AB - BACKGROUND: Metastases to the upper cervical spine were rarely reported in the literature. However, metastases to this area may cause spinal instability and cord compression, which in turn can result in respiratory failure and neurological dysfunction. The present study investigated the efficacy and safety of posterior decompression and occipitocervical fixation followed by intraoperative vertebroplasty for this disease. METHODS: This was a retrospective study that included 10 patients with metastatic involvement of the axis from March 2002 to May 2014. All cases presented with occipitocervical pain: 5 patients with compressive myelopathy and 6 patients with radiculopathy. Japanese Orthopedic Association (JOA) scores and Visual Analogue Scale (VAS) were used to evaluate the improvement of neurological function and pain intensity, respectively. RESULTS: All patients underwent posterior decompression and occipitocervical fixation followed by intraoperative vertebroplasty. The VAS scores and JOA scores both improved postoperatively, from 8.2 +/- 0.4 to 2.3 +/- 0.2 and from 10.1 +/- 2.2 to 14.2 +/- 2.9, respectively. Additionally, the improvement rate of JOA was 52.4 +/- 1.8%. The mean overall survival was 12.8 months. The median survival time was 7 months. The 6-month and 12-month survival rates were 70% and 40%, respectively. The mean duration of operation was 182 min and blood loss was 450 mL. The mean volume of bone cement injected was 4.0 mL. The cement extravasation was observed in only 1 patient without clinical symptoms. One patient developed tumour recurrence and died 1 month later. CONCLUSIONS: Posterior decompression and occipitocervical fixation followed by intraoperative vertebroplasty was a safe and valuable palliative method with relatively less invasion to treat metastatic involvement of the axis. PMID- 29325525 TI - Estimating the scale of chronic hepatitis B virus infection among migrants in EU/EEA countries. PMID- 29325526 TI - Aortoesophageal fistula and arch pseudoaneurysm after removing of a swallowed chicken bone: a case report of one-stage hybrid treatment. AB - BACKGROUND: Aortoesophageal fistula (AEF) and arch pseudoaneurysm are rare complications induced by a foreign body, and considerable controversy remains regarding the appropriate management strategies. We herein report a successful one-stage hybrid treatment in a patient with AEF and arch pseudoaneurysm. CASE PRESENTATION: The patient, a 40-year-old man, presented to the emergency room because of intense retrosternal discomfort for 3 days and hematemesis for 3 h. The esophagoscopy and thoracic enhanced computed tomography (CT) showed two irregular mural ulcers in the esophagus and a large saccular pseudoaneurysm at the aortic isthmus, respectively. The laboratory examinations confirmed no widespread inflammation and infection. We have successfully performed a successful one-stage hybrid treatment for this patient. Six-month follow-up shows the patient is in good condition and the esophagoscopy reveals the two mural ulcers had completely healed. CONCLUSION: The treatment decision-making process should depend upon the patients' specific situations. Our case suggest the one stage hybrid treatment could be an valuable alternative in some selected patients. PMID- 29325527 TI - Single center experience with laparoscopic adrenalectomy on a large clinical series. AB - BACKGROUND: Laparoscopic adrenalectomy is considered the gold standard technique for the treatment of benign small and medium size adrenal masses (<6 cm), due to low morbidity rate, short hospitalization and patient rapid recovery. The aim of our study is to analyse the feasibility and efficiency of this surgical approach in a broad spectrum of adrenal gland pathologies. METHODS: Pre-operative, intra operative and post-operative data from 126 patients undergone laparoscopic adrenalectomy between January 2003 and December 2015 were retrospectively collected and reviewed. Diagnosis was obtained on the basis of clinical examination, laboratory values and imaging techniques. Doxazosin was preoperatively administered in case of pheochromocytoma while spironolactone and potassium were employed to treat Conn's disease. Laparoscopic adrenalectomies were all performed by the same surgeon (CG). First 30 procedures were considered as learning curve adrenalectomies. RESULTS: One hundred twenty-six patients were included in the study. Functioning tumors were diagnosed in 84 patients, 27 patients were affected by pheochromocytomas, 29 by Conn's disease, 28 by Cushing disease. Surgery mean operative time was 137.33 min (range 100-180) during the learning curve adrenalectomies and 96.5 min (range 75-110) in subsequent procedures. Mean blood loss was respectively 160.2 ml (range 60-280) and 90.5 ml (range 50-200) in the first 30 procedures and the subsequent ones. Only one conversion to open surgery occurred. No post-operative major complications were observed, while minor complications occurred in 8 patients (0,79%). In 83 out of 84 functioning neoplasms, laparoscopic adrenalectomy was effective in normalization of endocrine profile. CONCLUSIONS: Laparoscopic adrenalectomy is a safe and feasible procedure, even for functioning masses and pheochromocytomas. A multidisciplinary team including endocrinologists, endocrine surgeons and anaesthesiologists, is recommended in the management of adrenal pathology, and adrenal surgery should be performed in referral high volume centers. A thirty procedures learning curve is recommended to improve surgical outcomes. PMID- 29325528 TI - Knowledge, attitudes, and practices regarding cervical cancer and screening among women visiting primary health care Centres in Bahrain. AB - BACKGROUND: Cervical cancer is one of the most common cancers among women, with 80% of the cases occurring in developing countries. Cervical cancer is largely preventable by effective screening programs. This has not been possible with opportunistic screening and its low use in the Kingdom of Bahrain. The objective of this study was to explore the knowledge, attitudes, and practices of women attending primary care health centres for cervical cancer screening. METHODS: This was a cross-sectional study of 300 women attending primary health care centres in Bahrain. We used a validated tool comprised of 45 items to collect data through face-to-face interviews between December 2015 and February 2016. Descriptive data are presented for demographic data, and frequency distributions with percentages are presented for each item of the knowledge and attitude questionnaire. RESULTS: The mean age +/- SD of the participants was 37.24 +/- 11.89 years, they were mostly married (221; 73.7%), and had a high school or higher education (261; 87%). Over 64% (194 participants) had never heard of a Pap smear procedure and only 3.7% (11 participants) had heard about the human papillomavirus (HPV) vaccine. Nearly 64% (192 participants) believed that a Pap smear was helpful in detecting pre-cancer and cancer of the cervix, and 44.3% (133 participants) believed that they should have a Pap smear at least every 3 years. Regarding the practice, only 40.7% (122 participants) had a Pap smear in their lifetime. The majority of participants felt embarrassed when examined by a male doctor (250, 83.3%) and few underwent a Pap smear screening if they were never married (69, 23.0%). CONCLUSIONS: The participants demonstrated a wide range of knowledge and attitudes towards cervical cancer screening. However, the majority demonstrated positive attitudes towards the HPV vaccine. PMID- 29325529 TI - A multiple imputation method based on weighted quantile regression models for longitudinal censored biomarker data with missing values at early visits. AB - BACKGROUND: In patient-based studies, biomarker data are often subject to left censoring due to the detection limits, or to incomplete sample or data collection. In the context of longitudinal regression analysis, inappropriate handling of these issues could lead to biased parameter estimates. We developed a specific multiple imputation (MI) strategy based on weighted censored quantile regression (CQR) that not only accounts for censoring, but also missing data at early visits when longitudinal biomarker data are modeled as a covariate. METHODS: We assessed through simulation studies the performances of developed imputation approach by considering various scenarios of covariance structures of longitudinal data and levels of censoring. We also illustrated the application of the proposed method to the Prospective Study of Outcomes in Ankylosing spondylitis (AS) (PSOAS) data to address the issues of censored or missing C reactive protein (CRP) level at early visits for a group of patients. RESULTS: Our findings from simulation studies indicated that the proposed method performs better than other MI methods by having a higher relative efficiency. We also found that our approach is not sensitive to the choice of covariance structure as compared to other methods that assume normality of biomarker data. The analysis results of PSOAS data from the imputed CRP levels based on our method suggested that higher CRP is significantly associated with radiographic damage, while those from other methods did not result in a significant association. CONCLUSION: The MI based on weighted CQR offers a more valid statistical approach to evaluate a biomarker of disease in the presence of both issues with censoring and missing data in early visits. PMID- 29325530 TI - Knowledge of cervical cancer and HPV vaccine in Bangladeshi women: a population based, cross-sectional study. AB - BACKGROUND: The objective of this study was to assess the level of knowledge of cervical cancer among Bangladeshi women and to assess their willingness to receive the human papillomavirus (HPV) vaccine. METHODS: A population-based, cross-sectional survey was conducted from July to December 2011 in one urban and one rural area of Bangladesh. A total of 2037 ever-married women, aged 14 to 64 years, were interviewed using a structured questionnaire. Data on socio demographic characteristics and knowledge of cervical cancer were collected. Willingness to receive the HPV vaccine was assessed. Univariate analyses were completed using quantitative data collected. Multivariable logistic regression models were developed to identify factors associated with having heard of cervical cancer and the HPV vaccine. RESULTS: The majority of study participants reported to have heard of cervical cancer (urban: 89.7%, rural 93.4%; P = 0.003). The odds of having heard of cervical cancer were significantly higher in urban women aged 35-44 years (aOR: 2.92 (1.34-6.33) and rural women aged 25-34 years (aOR: 2.90 (1.24-6.73) compared to those aged less than 24 years. Very few women reported to have detailed knowledge on risk factors (urban:9.1%, rural: 8.8%) and prevention (urban: 6.4%, rural: 4.4%) of cervical cancer. In our sample, one in five urban women and one in twenty rural women heard about a vaccine that can prevent cervical cancer. Among urban women, secondary education or higher (aOR: 3.48, 95% CI: 1.67-7.25), age of 20 years and above at marriage (aOR: 2.83, 95% CI: 1.61-5.00), and high socioeconomic status (aOR: 2.25, 95% CI: 1.28-3.95) were factors associated with having heard of the HPV vaccine. Willingness to receive the HPV vaccine among study participants either for themselves (urban: 93.9%, rural: 99.4%) or for their daughters (urban: 91.8%, rural: 99.2%) was high. CONCLUSIONS: Detailed knowledge of cervical cancer among Bangladeshi women was found to be poor. Education on cervical cancer must include information on symptoms, risk factors, and preventive methods. Despite poor knowledge, the study population was willing to receive the HPV vaccine. PMID- 29325531 TI - Costs of potentially inappropriate medication use in residential aged care facilities. AB - BACKGROUND: The potential harms of some medications may outweigh their potential benefits (inappropriate medication use). Despite recommendations to avoid the use of potentially inappropriate medications (PIMs) in older adults, the prevalence of PIM use is high in different settings including residential aged care. However, it remains unclear what the costs of these medications are in this setting. The main objective of this study was to determine the costs of PIMs in older adults living in residential care. A secondary objective was to examine if there was a difference in costs of PIMs in a home-like model of residential care compared to an Australian standard model of care. METHODS: Participants included 541 participants from the Investigation Services Provided in the Residential Environment for Dementia (INSPIRED) Study. The INSPIRED study is a cross sectional study of 17 residential aged care facilities in Australia. 12 month medication costs were determined for the participants and PIMs were identified using the 2015 updated Beers Criteria for older adults. RESULTS: Of all of the medications dispensed in 1 year, 15.9% were PIMs and 81.4% of the participants had been exposed to a PIM. Log-linear models showed exposure to a PIM was associated with higher total medication costs (Adjusted beta = 0.307, 95% CI 0.235 to 0.379, p < 0.001). The mean proportion (+/-SD) of medication costs that were spent on PIMs in 1 year was 17.5% (+/-17.8) (AUD$410.89 +/- 479.45 per participant exposed to a PIM). The largest PIM costs arose from proton-pump inhibitors (34.4%), antipsychotics (21.0%) and benzodiazepines (18.7%). The odds of incurring costs from PIMs were 52% lower for those residing in a home-like model of care compared to a standard model of care. CONCLUSIONS: The use of PIMs for older adults in residential care facilities is high and these medications represent a substantial cost which has the potential to be lowered. Further research should investigate whether medication reviews in this population could lead to potential cost savings and improvement in clinical outcomes. Adopting a home-like model of residential care may be associated with reduced prevalence and costs of PIMs. PMID- 29325532 TI - Mesenteric inflammatory veno-occlusive disease occurring during the course of ulcerative colitis: a case report. AB - BACKGROUND: Mesenteric inflammatory veno-occlusive disease (MIVOD) is difficult to diagnose because of its rarity, nonspecific clinical findings, and frequent confusion with other diseases including inflammatory bowel disease. This report presents a very rare case of MIVOD that occurred during the course of ulcerative colitis (UC). CASE PRESENTATION: A 32-year-old man, who had been diagnosed with UC at the age of 29 and was in remission maintained by oral administration of 5 aminosalicylic acid (5-ASA), showed exacerbation of diarrhea and was admitted to the hospital. Since it was deemed an exacerbation of UC, intravenous steroid therapy and oral administration of tacrolimus were initiated, but his condition continued to worsen. Abdominal computed tomography (CT) was performed and showed intraperitoneal free air, leading to a diagnosis of gastrointestinal perforation and the performance of emergency surgery (subtotal colectomy and ileostomy). Histopathological examination of the resected colon of the patient showed mucosal inflammatory findings that were not typical of UC, including multiple organized thrombi with recanalization in the veins existing in the submucosal layer to the subserosal layer and an increased infiltration of inflammatory cells. These findings led to the pathological diagnosis of MIVOD. CONCLUSION: We report a very rare case in which MIVOD occurred during the course of UC. PMID- 29325534 TI - Increasing Trend in Hospital Deaths Consistent among Older Decedents in Korea: A Population-based Study Using Death Registration Database, 2001-2014. AB - BACKGROUND: With improvement in hospice palliative care services and long-term care, Republic of Korea (hereafter South Korea) has recorded significant changes in places of death (e.g., hospital, home), especially among older adults. Over the last few decades, the most common places of death in South Korea were hospitals. However, Koreans, especially older adults, reportedly prefer to receive terminal care and eventually die at home. This study was conducted to investigate trends in places of death among older Korean adults and factors associated therewith. METHODS: Data were obtained from the Korean Death Registration Database maintained by the National Statistical Office. Decedents who died after the age of 65 years from 2001 to 2014 were included in the analysis. For descriptive analysis, proportions of places of death were analyzed and were used to plot graphs for visualizing trends during 13-year period. Logistic regression model was used to evaluate factors associated with places of death (hospital versus home). RESULTS: Two million three hundred fifty eight thousand two hundred eleven older adult decedents were included in final analysis. Hospitals were the most common places of death (57.82%), followed by homes (32.12%). Dying at social welfare facilities was rare (2.61%). A gradual increase in hospital deaths (31.38% in 2001 to 75.30% in 2014) and a subsequent decrease in home deaths (60.44% to 15.95% over the same period) were noted. Hospital deaths were more likely for younger patients (ORs 1.28, 95% CI 1.27 1.29), females (ORs 1.28, 95% CI 1.27-1.29), and single/divorced or widowed individuals (ORs 1.77, 1.49 and 1.03 respectively). A higher education level and living in urban areas were strongly associated with a higher likelihood of dying in a hospital. CONCLUSION: Over the study period, there was a consistent increasing trend in hospital deaths in South Korea. Trends in place of death and factors associated therewith should be more intensely investigated and monitored. Resources and facilities should be increased to fulfill end-of-life care preferences and the needs of an increasingly older population in South Korea. PMID- 29325533 TI - A systematic review of comparisons between protocols or registrations and full reports in primary biomedical research. AB - BACKGROUND: Prospective study protocols and registrations can play a significant role in reducing incomplete or selective reporting of primary biomedical research, because they are pre-specified blueprints which are available for the evaluation of, and comparison with, full reports. However, inconsistencies between protocols or registrations and full reports have been frequently documented. In this systematic review, which forms part of our series on the state of reporting of primary biomedical, we aimed to survey the existing evidence of inconsistencies between protocols or registrations (i.e., what was planned to be done and/or what was actually done) and full reports (i.e., what was reported in the literature); this was based on findings from systematic reviews and surveys in the literature. METHODS: Electronic databases, including CINAHL, MEDLINE, Web of Science, and EMBASE, were searched to identify eligible surveys and systematic reviews. Our primary outcome was the level of inconsistency (expressed as a percentage, with higher percentages indicating greater inconsistency) between protocols or registration and full reports. We summarized the findings from the included systematic reviews and surveys qualitatively. RESULTS: There were 37 studies (33 surveys and 4 systematic reviews) included in our analyses. Most studies (n = 36) compared protocols or registrations with full reports in clinical trials, while a single survey focused on primary studies of clinical trials and observational research. High inconsistency levels were found in outcome reporting (ranging from 14% to 100%), subgroup reporting (from 12% to 100%), statistical analyses (from 9% to 47%), and other measure comparisons. Some factors, such as outcomes with significant results, sponsorship, type of outcome and disease speciality were reported to be significantly related to inconsistent reporting. CONCLUSIONS: We found that inconsistent reporting between protocols or registrations and full reports of primary biomedical research is frequent, prevalent and suboptimal. We also identified methodological issues such as the need for consensus on measuring inconsistency across sources for trial reports, and more studies evaluating transparency and reproducibility in reporting all aspects of study design and analysis. A joint effort involving authors, journals, sponsors, regulators and research ethics committees is required to solve this problem. PMID- 29325536 TI - Autonomy and couples' joint decision-making in healthcare. AB - BACKGROUND: Respect for autonomy is a key principle in bioethics. However, respecting autonomy in practice is complex because most people define themselves and make decisions influenced by a complex network of social relationships. The extent to which individual autonomy operates for each partner within the context of decision-making within marital or similar relationships is largely unexplored. This paper explores issues related to decision-making by couples (couples' joint decision-making) for health care and the circumstances under which such a practice should be respected as compatible with autonomous decision-making. DISCUSSION: We discuss the concept of autonomy as it applies to persons and to actions, human interdependency and gender roles in decision-making, the dynamics and outcomes of couples' joint decision-making, and the ethics of couples' joint decision-making. We believe that the extent to which couples' joint decision making might be deemed ethically acceptable will vary depending on the context. Given that in many traditional marriages the woman is the less dominant partner, we consider a spectrum of scenarios of couples' joint decision-making about a woman's own health care that move from those that are acceptably autonomous to those that are not consistent with respecting the woman's autonomous decision making. To the extent that there is evidence that both members of a couple understand a decision, intend it, and that neither completely controls the other, couples' joint decision-making should be viewed as consistent with the principle of respect for the woman's autonomy. At the other end of the spectrum are decisions made by the man without the woman's input, representing domination of one partner by the other. CONCLUSIONS: We recommend viewing the dynamics of couples' joint decision-making as existing on a continuum of degrees of autonomy. This continuum-based perspective implies that couples' joint decision-making should not be taken at face value but should be assessed against the specific cultural, ethnic, and religious backgrounds and personal circumstances of the individuals in question. PMID- 29325535 TI - Effects of physical activity on colorectal cancer risk among family history and body mass index subgroups: a systematic review and meta-analysis. AB - BACKGROUND: Physical activity is consistently associated with a reduced risk of colorectal cancer in epidemiologic studies. This association among higher risk subgroups, such as those with a first-degree family history of colorectal cancer or high body mass index remains unclear. METHODS: We searched MEDLINE for studies examining physical activity and colorectal cancer risk among higher risk subgroups through July 11, 2017. Fifteen and three studies were eligible for inclusion for body mass index and first-degree family history of colorectal cancer subgroups, respectively. Estimates of the highest to lowest comparison of physical activity for each subgroup of risk were pooled using random-effects models. RESULTS: The pooled associations of physical activity and colorectal cancer risk for those without and with a first-degree family history of colorectal cancer were 0.56 (95% confidence interval (CI) = 0.39-0.80) and 0.72 (95% CI = 0.39-1.32), respectively (pheterogeneity = 0.586). The pooled associations of physical activity and colorectal cancer risk for the low and high body mass index groups were 0.74 (95% CI = 0.66-0.83) and 0.65 (95% CI = 0.53 0.79), respectively (pheterogeneity = 0.389). CONCLUSIONS: Overall, a stronger relative risk of physical activity on colorectal cancer risk was observed in the higher body mass index group, although the difference was not statistically significant, suggesting an added benefit of physical activity as a cancer prevention strategy in population groups with strong risk factors for colorectal cancer. Additional research among these subgroups is warranted. PMID- 29325538 TI - Influence of isoflurane exposure in pregnant rats on the learning and memory of offsprings. AB - BACKGROUND: About 2% of pregnant women receive non-obstetric surgery under general anesthesia each year. During pregnancy, general anesthetics may affect brain development of the fetus. This study aimed to investigate safe dosage range of isoflurane. METHODS: Forty-eight SpragueDawley (SD) pregnant rats were randomly divided into 3 groups and inhaled 1.3% isoflurane (the Iso1 group), 2.0% isoflurane (the Iso2 group) and 50% O2 alone (the control group) for 3 h, respectively. Their offsprings were subjected to Morris water maze at day 28 and day 90 after birth to evaluate learning and memory. The expression of cAMP response element binding protein (CREB) and phosphorylated cAMP-response element binding protein (p-CREB) was detected in the hippocampus dentate gyrus. RESULTS: Less offsprings of Iso2 group were able to cross the platform than that of the control group (P < 0.05). Accordingly, the Iso2 offsprings expressed p-CREB mainly in the subgranular zone in contrast to the whole granular cell layer of hippocampus dentate gyrus as detected in the Iso1 and control offsprings; the expression level of pCREB was also lower in the Iso2 than Iso1 or control offsprings (P < 0.05). CONCLUSION: Inhalation of isoflurane at 1.3% during pregnancy has no significant influence on learning and memory of the offspring; exposure to isoflurane at 2.0% causes damage to spatial memory associated with inhibition of CREB phosphorylation in the granular cell layer of hippocampus dentate gyrus. PMID- 29325537 TI - Factors associated with the prevalence of back pain and work absence in shipyard workers. AB - BACKGROUND: We conducted a questionnaire survey of shipyard workers to identify difficulties experienced due to orthopedic or musculoskeletal disorders. METHODS: The subjects were 375 workers (male, 361; female, 14) who worked for a single shipbuilding company. Questionnaire items covered the working environment, including work environment, working posture, and the weight of objects that the subject dealt with, as well as physical and lifestyle characteristics, namely smoking habits, drinking habits, sleeping hours, medications, exercise habits, and any weight gain of 20 kg or more since the age of 20. Subjects were also asked to indicate if they regularly experienced any of 17 listed difficulties in their daily lives, and to use an illustration of the human body to mark any body parts that were painful or hard to move. RESULTS: The mean age was 41.8 years (19 73 years). The lower and/or upper back was the most frequent site of pain (46.5%), followed by the shoulders (11.4%), knees (9.6%), and neck (5.3%). Maintaining a half-sitting posture was the most problematic activity of daily living. Back pain was less frequent in subjects who exercised regularly, and more common in those who worked with heavy loads or in narrow spaces. A multinomial logistic regression analysis showed that absence from work was more common in subjects with back pain who had gained weight since their youth, who smoked, who used fire while welding metal, or who worked in a lying posture. While 35.4% of subjects had experienced absence from work due to musculoskeletal pain, only 5.1% were permitted by their employer to alter their work content or reduce their workload. CONCLUSIONS: These results indicate that a large number of shipyard workers have difficulties in their work and daily life activities due to back pain. To prevent worsening of pain and to reduce work absence, it is important to provide appropriate training to minimize the risk factors for back pain that were identified in this study. PMID- 29325540 TI - Correction to: Metalloproteases meprin-alpha (MEP1A) is a prognostic biomarker and promotes proliferation and invasion of colorectal cancer. AB - CORRECTION: After publication of the original article [1] the authors found that the figure contained an incorrect version of Fig. 3a. This does not affect the results and conclusions of the article. PMID- 29325539 TI - Chinese Cervicocephalic artery dissection study (CCADS): rationale and protocol for a multicenter prospective cohort study. AB - BACKGROUND: Cervicocephalic artery dissection (CAD) is an important etiology of stroke in the youth. Findings from recent studies suggest it a "group of disease entities" with different underlying etiologies, presentations and prognosis, necessitating an integral study including various types of CAD to get a better understanding of this disease. In addition, Chinese patients with CAD are likely to carry different features from their western counterparts, which remains uncertain yet. Chinese Cervicocephalic Artery Dissection Study (CCADS) therefore aims at exploring the epidemiology, risk factors, clinical/radiological features, diagnosis and prognosis of CAD in Chinese patients. METHODS/DESIGN: CCADS is a multicenter prospective cohort study enrolling patients age >= 18 years with recent (<14 days after onset) CAD. Baseline clinical data, laboratory tests and imaging studies are performed within 3 days after admission, and follow-ups will be conducted through face-to-face interviews at discharge, 3 months, 6 months and 12 months after admission, when the modified Rankin Scale (mRS), cerebrovascular events, medication compliance, CAD evolution and so on are evaluated. Additional blood samples will also be collected at baseline, 3 and 12 months follow-up. The primary outcome is radiographic evolution of CAD; secondary outcomes include cerebrovascular events, major bleeding complications, all-cause mortality and functional independence. DISCUSSION: Through the integration of information on epidemiology, risk factors, clinical/radiological features and prognosis of various types of CAD in Chinese population, combined with the application of advanced imaging techniques, collection of potential blood biomarkers, and assessment of novel treatment strategies. CCADS will provide thorough information on CAD - the major cause of stroke in the youth, and play a role in prevention and treatment determination in the future. PMID- 29325541 TI - Interprofessional collaboration in nursing homes (interprof): development and piloting of measures to improve interprofessional collaboration and communication: a qualitative multicentre study. AB - BACKGROUND: Given both the increase of nursing home residents forecast and challenges of current interprofessional interactions, we developed and tested measures to improve collaboration and communication between nurses and general practitioners (GPs) in this setting. Our multicentre study has been funded by the German Federal Ministry of Education and Research (FK 01GY1124). METHODS: The measures were developed iteratively in a continuous process, which is the focus of this article. In part 1 "exploration of the situation", interviews were conducted with GPs, nurses, nursing home residents and their relatives focusing on interprofessional interactions and medical care. They were analysed qualitatively. Based on these results, in part 2 "development of measures to improve collaboration", ideas for improvement were developed in nine focus groups with GPs and nurses. These ideas were revisited in a final expert workshop. We analysed the focus groups and expert workshop using mind mapping methods, and finally drew up the compilation of measures. In an exploratory pilot study "study part 3" four nursing homes chose the measures they wanted to adopt. These were tested for three months. Feasibility and acceptance of the measures were evaluated via guideline interviews with the stakeholders which were analysed by content analyses. RESULTS: Six measures were generated: meetings to establish common goals, main contact person, standardised pro re nata medication, introduction of name badges, improved availability of nurse/GP and standardised scheduling/ procedure for nursing home visits. In the pilot study, the measures were implemented in four nursing homes. GPs and nurses reviewed five measures as feasible and acceptable, only the designation of a "main contact person" was not considered as an improvement. CONCLUSIONS: Six measures to improve collaboration and communication could be compiled in a multistep qualitative process respecting the perspectives of involved stakeholders. Five of the six measures were positively assessed in an exploratory pilot study. They could easily be transferred into the daily routine of other nursing homes, as no special models have to exist in advance. Impact of the measures on patient oriented outcomes should be examined in further research. TRIAL REGISTRATION: Not applicable. PMID- 29325542 TI - Visceral adipose tissue and carotid intima-media thickness in HIV-infected patients undergoing cART: a prospective cohort study. AB - BACKGROUND: Combined antiretroviral therapy (cART) in HIV-infected patients has been associated with lipodystrophy, metabolic abnormalities, and an increased risk of cardiovascular disease. Ultrasound measures of carotid artery intima media thickness (cIMT) have been used as a valid measure of subclinical atherosclerosis and as a tool to predict the risk of cardiovascular events. Our aim was to evaluate the progression of cIMT in HIV-infected patients subjected to cART, with and without lipodystrophy, over a one-year period. METHODS: We performed a one-year prospective cohort study to compare changes in cIMT, metabolic and inflammation markers in HIV-infected patients undergoing cART. Body composition was assessed by dual-energy X-ray absorptiometry (DXA) and abdominal computed tomography (CT). Levels of blood pressure, lipids and inflammatory markers were evaluated, as well as ultrasound measures of cIMT. Lipodystrophy defined by Fat Mass Ratio (L-FMR) is measured as the ratio of the percentage of trunk fat mass to the percentage of lower limb fat mass by DXA. Categorical variables were compared, using the chi-square or Fisher's exact test. Wilcoxon ranks tests and the McNemar chi-square tests were used to compare results of selected variables, from the first to the second year of evaluation. Means of cIMT, adjusted for age, glucose, triglycerides levels, systolic blood pressure (SBP), and waist to hip ratio were calculated, using generalised linear models for repeated measures. RESULTS: L-FMR was present in 44.3% of patients, and the mean of cIMT increased significantly in this group [0.82 (0.26) vs 0.92 (0.33); p = 0.037], as well as in patients without lipodystrophy [0.73 (0.20) vs 0.84 (0.30); p = 0.012]. In the overall sample, the progression of cIMT was statistically significant after the adjustment for age, glucose, triglycerides, and SBP, but the significance of the progression ceased after the adjustment for waist/hip ratio [0.770 (0.737-0.803) vs 0.874 (0.815-0.933); p = 0.514]. CONCLUSIONS: Carotid IMT progressed significantly in both groups of this HIV infected cohort, however no association between the progression of cIMT and the presence of lipodystrophy defined by FMR was found. Visceral adipose tissue had an impact on the increment of cIMT, both in patients with, and without lipodystrophy defined by FMR. PMID- 29325543 TI - Persistent mammalian orthoreovirus, coxsackievirus and adenovirus co-infection in a child with a primary immunodeficiency detected by metagenomic sequencing: a case report. AB - BACKGROUND: We report a rare case of Mammalian orthoreovirus (MRV) infection in a child with a primary immunodeficiency (PID). Infections with Mammalian orthoreovirus are very rare and probably of zoonotic origin. Only a few cases have been described so far, including one with similar pathogenesis as in our case. CASE PRESENTATION: The patient, age 11, presented with flu-like symptoms and persistent severe diarrhea. Enterovirus has been detected over several months, however, exact typing of a positive cell culture remained inconclusive. Unbiased metagenomic sequencing then detected MRV in stool samples from several time points. The sequencing approach further revealed co-infection with a recombinant Coxsackievirus and Adenovirus. MRV-specific antibodies detected by immunofluorescence proved that the patient seroconverted. CONCLUSION: This case highlights the potential of unbiased metagenomic sequencing in supplementing routine diagnostic methods, especially in situations of chronic infection with multiple viruses as seen here in an immunocompromised host. The origin, transmission routes and implications of MRV infection in humans merit further investigation. PMID- 29325544 TI - Prevalence and associated factors of wheezing illnesses of children aged three to five years living in under-served settlements of the Colombo Municipal Council in Sri Lanka: a cross-sectional study. AB - BACKGROUND: A rising trend in Sri Lanka for asthma and wheezing illness is observed with higher morbidity in younger children and a paucity of related research. 'Under-served settlements' (USS) of Colombo Municipal Council (CMC) have poor living environments conducive to childhood wheezing. The objective was to describe the prevalence and associated factors of wheezing illnesses of three to five year old children living in low-income settlements in CMC. METHODS: A cross-sectional study was conducted on 460 three to five year old children and their caregivers using cluster sampling among residents of two randomly selected USSs of CMC. An interviewer-administered questionnaire, observation checklist and data extraction form were used in data collection. A physician's diagnosis of wheezing/whistling of the chest in their lifetime and a physician's diagnosis of wheezing/whistling within the past twelve months were considered as 'ever wheezing illness' and 'current-wheezing illness' respectively. RESULTS: Mean age was 3.98 years (SD = +/-0.64 years). A majority were males (51.3%) and Tamils (39.8%). Prevalence of 'ever wheezing illness' and 'current wheezing illness' were 38% (95% confidence interval (CI); 33.6%-42.5%) and 21.3% (95%CI; 17.6% 25.0%), respectively. Maternal (p < 0.001) and paternal (p < 0.001) histories of wheezing, playing with soft toys in the sleeping area (p = 0.004), place of cooking combined with the living area (p = 0.03), unsatisfactory ventilation in the sleeping area (p < 0.001) were found to be significantly associated with increased 'current wheezing' through multivariate analysis in this study. Use of formula milk before six months of age (p = 0.014) was found to be protective through multivariate analysis. CONCLUSIONS: The magnitude of wheezing illnesses among three to five year old children residing in urban low-income settlements was found to be high. Children with a history of maternal and/or paternal wheezing should be targeted for early interventions to prevent wheezing illnesses. Interventions to avoid exacerbations should focus on the indoor environmental factors that were found to be associated with wheezing illnesses. PMID- 29325545 TI - Phthiocerol dimycocerosates promote access to the cytosol and intracellular burden of Mycobacterium tuberculosis in lymphatic endothelial cells. AB - BACKGROUND: Phthiocerol dimycocerosates (PDIM), glycolipids found on the outer surface of virulent members of the Mycobacterium tuberculosis (Mtb) complex, are a major contributing factor to the pathogenesis of Mtb. Myelocytic cells, such as macrophages and dendritic cells, are the primary hosts for Mtb after infection and previous studies have shown multiple roles for PDIM in supporting Mtb in these cells. However, Mtb can infect other cell types. We previously showed that Mtb efficiently replicates in human lymphatic endothelial cells (hLECs) and that the hLEC cytosol acts as a reservoir for Mtb in humans. Here, we examined the role of PDIM in Mtb translocation to the cytosol in hLECs. RESULTS: Analysis of a Mtb mutant unable to produce PDIM showed less co-localisation of bacteria with the membrane damage marker Galectin-8 (Gal8), indicating that PDIM strongly contribute to phagosomal membrane damage. Lack of this Mtb lipid also leads to a reduction in the proportion of Mtb co-localising with markers of macroautophagic removal of intracellular bacteria (xenophagy) such as ubiquitin, p62 and NDP52. hLEC imaging with transmission electron microscopy shows that Mtb mutants lacking PDIM are much less frequently localised in the cytosol, leading to a lower intracellular burden. CONCLUSIONS: PDIM is needed for the disruption of the phagosome membrane in hLEC, helping Mtb avoid the hydrolytic phagolysosomal milieu. It facilitates the translocation of Mtb into the cytosol, and the decreased intracellular burden of Mtb lacking PDIM indicates that the cytosol is the preferred replicative niche for Mtb in these cells. We hypothesise that pharmacological targeting of PDIM synthesis in Mtb would reduce the formation of a lymphatic reservoir of Mtb in humans. PMID- 29325546 TI - Development and evaluation of a measure of patient-reported symptoms of Blepharitis. AB - BACKGROUND: Blepharitis is an ocular surface disease and chronic ophthalmic condition. This paper reports on the development of psychometric evaluation of a patient-reported measure of blepharitis symptoms. METHODS: Self-reports of 13 blepharitis symptoms collected in a Phase 3 multi-site, randomized, double masked, 4-arm parallel group, clinical trial of 907 individuals with blepharitis (mean age = 62, range: 19-93; 57% female) were analyzed. Symptoms asked about were: eyes that itch; eyes that burn; eyelids feel heavy or puffy; feel like something is in your eye; dry eyes; gritty eyes; irritated eyes; eyes that tear or water; crusty eyes; flaking from your eyelids; eyelids that are stuck together; red eyes or eyelids; and debris like pieces of skin or dandruff in your eyes. RESULTS: Categorical factor analyses provided support for two multi-item symptom scales: Irritation (9 items, alpha = 0.88) and Debris (4 items, alpha = 0.85). Spearman-rank order correlations of the Irritation and Debris scales with the Ocular Surface Disease total score were 0.63 and 0.41, respectively (p's < 0.001). Rank-order correlations between ratings of clinicians and self-reports of puffy eyes (r = 0.07, p < .05), red eyes (r = 0.12, p < .001), debris (r = 0.03, p > 0.05), and irritation (r = 0.47, p < .001). CONCLUSIONS: This study provides support for the psychometric properties and construct validity of the Irritation and Debris scales for assessing symptoms of blepharitis. The associations between the self-reports and clinician ratings of 4 symptoms indicate substantial unique information in the new self-reported symptom items. TRIAL REGISTRATION: The trial was registered at ClinicalTrials.gov under the registry number NCT01408082 . PMID- 29325547 TI - Paracrine and epigenetic control of CAF-induced metastasis: the role of HOTAIR stimulated by TGF-beta1 secretion. AB - BACKGROUND: The communication between carcinoma associated fibroblasts (CAFs) and cancer cells facilitate tumor metastasis. In this study, we further underlying the epigenetic mechanisms of CAFs feed the cancer cells and the molecular mediators involved in these processes. METHODS: MCF-7 and MDA-MB-231 cells were treated with CAFs culture conditioned medium, respectively. Cytokine antibody array, enzyme-linked immunosorbent assay, western blotting and immunofluorescence were used to identify the key chemokines. Chromatin immunoprecipitation and luciferase reporter assay were performed to explore the transactivation of target LncRNA by CAFs. A series of in vitro assays was performed with RNAi-mediated knockdown to elucidate the function of LncRNA. An orthotopic mouse model of MDA MB-231 was conducted to confirm the mechanism in vivo. RESULTS: Here we reported that TGF-beta1 was top one highest level of cytokine secreted by CAFs as revealed by cytokine antibody array. Paracrine TGF-beta1 was essential for CAFs induced EMT and metastasis in breast cancer cells, which is a crucial mediator of the interaction between stromal and cancer cells. CAF-CM significantly enhanced the HOTAIR expression to promote EMT, whereas treatment with small-molecule inhibitors of TGF-beta1 attenuated the activation of HOTAIR. Most importantly, SMAD2/3/4 directly bound the promoter site of HOTAIR, located between nucleotides -386 and -398, -440 and -452, suggesting that HOTAIR was a directly transcriptional target of SMAD2/3/4. Additionally, CAFs mediated EMT by targeting CDK5 signaling through H3K27 tri-methylation. Depletion of HOTAIR inhibited CAFs induced tumor growth and lung metastasis in MDA-MB-231 orthotopic animal model. CONCLUSIONS: Our findings demonstrated that CAFs promoted the metastatic activity of breast cancer cells by activating the transcription of HOTAIR via TGF-beta1 secretion, supporting the pursuit of the TGF-beta1/HOTAIR axis as a target in breast cancer treatment. PMID- 29325548 TI - A pre-post study testing a lung cancer screening decision aid in primary care. AB - BACKGROUND: The United States Preventive Services Task Force (USPSTF) issued recommendations for older, heavy lifetime smokers to complete annual low-dose computed tomography (LDCT) scans of the chest as screening for lung cancer. The USPSTF recommends and the Centers for Medicare and Medicaid Services require shared decision making using a decision aid for lung cancer screening with annual LDCT. Little is known about how decision aids affect screening knowledge, preferences, and behavior. Thus, we tested a lung cancer screening decision aid video in screening-eligible primary care patients. METHODS: We conducted a single group study with surveys before and after decision aid viewing and medical record review at 3 months. Participants were active patients of a large US academic primary care practice who were current or former smokers, ages 55-80 years, and eligible for screening based on current screening guidelines. Outcomes assessed pre-post decision aid viewing were screening-related knowledge score (9 items about screening-related harms of false positives and overdiagnosis, likelihood of benefit; score range = 0-9) and preference (preferred screening vs. not). Screening behavior measures, assessed via chart review, included provider visits, screening discussion, LDCT ordering, and LDCT completion within 3 months. RESULTS: Among 50 participants, knowledge increased from pre- to post-decision aid viewing (mean = 2.6 vs. 5.5, difference = 2.8; 95% CI 2.1, 3.6, p < 0.001). Preferences across the overall sample remained similar such that 54% preferred screening at baseline and 50% after viewing; however, 28% of participants changed their preference (to or away from screening) from baseline to after viewing. We assessed screening behavior for 36 participants who had a primary care visit during the 3-month period following enrollment. Eighteen of 36 preferred screening after decision aid viewing. Of these 18, 10 discussed screening, 8 had a test ordered, and 6 completed LDCT. Among the 18 who preferred no screening, 7 discussed screening, 5 had a test ordered, and 4 completed LDCT. CONCLUSIONS: In primary care patients, a lung cancer screening decision aid improved knowledge regarding screening-related benefits and harms. Screening preferences and behavior were heterogeneous. TRIAL REGISTRATION: This study is registered at www.clinicaltrials.gov . NCT03077230 (registered retrospectively,November 22, 2016). PMID- 29325549 TI - Does exposure to interparental violence increase women's risk of intimate partner violence? Evidence from Nigeria demographic and health survey. AB - BACKGROUND: Exposure to interparental violence (EIPV) has been identified as a risk factor for intimate partner violence (IPV). However, studies in Nigeria have rarely and specifically examined exposure to interparental violence as a predictor of IPV. The objective of the study was to examine the relationship between exposure to interparental violence and women's experience of intimate partner violence. METHODS: The 2013 Nigeria Demographic and Health Survey (NDHS) women recode dataset was analysed. The weighted sample size was 19,925 women aged 15-49 years. The outcome variable was women's experience of at least one type of IPV measured by combining partner physical, sexual and emotional violence experienced by the surveyed women. The main explanatory variable was exposure to interparental violence measured by response to question on whether a woman witnessed her father ever beat her mother. Individual/relationship and community characteristics were selected for statistical control in the study. The multilevel mixed-effect regression was applied in three models using Stata version 12. Model 1 was based solely on interparental violence, while individual/relationship factors were included in Model 2. In Model 3, all research variables were included. RESULTS: The study revealed that less than one tenth of the women witnessed interparental violence, and women exposed to interparental violence compared with non exposed women had higher prevalence of all forms of IPV. In Model 1, women exposed to interparental violence were more than five times as likely as non exposed women to experience IPV (OR = 5.356; CI: 3.371-8.509). In Model 2, women exposed to interparental violence were nearly five times as likely as non exposed women to experience IPV (OR = 4.489; CI: 3.047-6.607). In Model 3, women exposed to interparental violence were four times as likely as non exposed women to experience IPV (OR = 4.018; CI: 2.626-6.147). CONCLUSION: The study provided additional evidence that exposure to interparental violence increase women's risk of IPV in Nigeria. Reducing future prevalence of intimate partner violence may require social and behaviour change communication (SBCC) that not only change perception of children who witnessed interparental violence, but also help them to overcome intergenerational effects of interparental aggression. PMID- 29325550 TI - Acute-onset high-morbidity primary photosensitisation in sheep associated with consumption of the Casbah and Mauro cultivars of the pasture legume Biserrula. AB - BACKGROUND: Primary photosensitisation (PS) subsequent to ingestion of the pasture legume Biserrula pelecinus L. (biserrula) has recently been confirmed in grazing livestock. Given the potential utility of this pasture species in challenging climates, a grazing trial was undertaken to examine if both varieties 'Casbah' and 'Mauro' were able to cause photosensitisation in livestock, and if this could be mitigated by grazing in winter, or in combination with other common pasture species. RESULTS: A controlled grazing trial was undertaken in winter in Australia with plots containing a dominant pasture of Biserrula pelecinus L. cv. 'Casbah' or 'Mauro', or mixed biserrula/perennial ryegrass populations. A photosensitisation grading system was established. 167 prime meat ewe lambs were introduced to the plots and monitored twice daily. Mild clinical signs were observed at 72 h on pasture. All animals were removed from biserrula dominant stands at this point. Four animals grazing 'Casbah' dominant pasture rapidly proceeded to severe photosensitisation in the following 12 h. Animals remaining on mixed biserrula/ryegrass stands did not exhibit severe PS but showed an 89% incidence of mild to moderate photosensitisation over the following 14 days. Animals on mixed lucerne showed significantly lower PS score than animals grazing biserrula varieties of any composition. The trial was halted at 14 days as only plots with low biserrula proportion still contained unaffected animals. Necropsy revealed severe multifocal erythematous ulcerations and alopecia of the ear pinnae, severe bilateral periorbital and conjunctival oedema and variably severe subcutaneous facial oedema. No evidence of hepatopathy was present. A diagnosis of acute unseasonal primary photosensitisation caused by biserrula ingestion with no other underlying pathology was confirmed. CONCLUSIONS: We report an unseasonal outbreak of acute photosensitisation in sheep grazing Biserrula pelecinus L cvs.'Casbah' and 'Mauro' with exceedingly high morbidity. A grading system is also proposed as a tool for objective and consistent clinical appraisal of future PS outbreaks. This finding expands our definition of seasonal and temporal risk periods for biserrula photosensitisation, and is the first to identify that both commercial cultivars of biserrula can cause primary photosensitisation in sheep. PMID- 29325551 TI - Relationship between cardiac microvascular dysfunction measured with 82Rubidium PET and albuminuria in patients with diabetes mellitus. AB - BACKGROUND: Albuminuria is of one the strongest predictors of cardiovascular disease (CVD) in diabetes. Diabetes is associated with cardiac microvascular dysfunction (CMD), a powerful, independent prognostic factor for cardiac mortality. The aim of this study was to evaluate the relationship between CMD and microvascular complications in patients without known CVD. METHODS: In this monocentric study, myocardial flow reserve (MFR) was measured with cardiac 82Rubidium positron emission tomography (Rb-PET) in 311 patients referred to nuclear medicine department of Bichat University Hospital for screening of coronary artery disease from 2012 to 2014. Patients with hemodynamically relevant stenosis on coronary angiography or myocardial ischemia on Rb-PET were excluded. Among patients with diabetes, MFR values were compared according to the presence of retinopathy and albuminuria. RESULTS: Overall, 175 patients (118 with type 2 diabetes) were included. MFR was significantly lower in patients with diabetes compared with those without diabetes (2.6 +/- 1.1 vs. 3.3 +/- 1.7; p < 0.005). In patients with diabetes, MFR decreased progressively in relation to albumin urinary excretion (normoalbuminuria: 2.9 +/- 1.1, microalbuminuria: 2.3 +/- 1.0, macroalbuminuria: 1.8 +/- 0.7; p < 0.0001). MFR was not significantly different in patients with vs. without retinopathy (2.4 +/- 1.0 vs. 2.7 +/- 1.1, p = 0.07). Microalbuminuria and macroalbuminuria remained strongly associated with impaired MFR after multiple adjustments [odds ratio 2.6 (95% CI 1.1-8.4) and 5.3 (95% CI 1.2-44.7), respectively]. This association was confirmed when analyses were restricted to patients with low levels of coronary calcifications on computed tomography. CONCLUSIONS: Impaired MFR was more frequent in patients with diabetes and was strongly associated with the degree of albuminuria suggesting that CMD and albuminuria might share common mechanisms. PMID- 29325552 TI - Health care access for rural youth on equal terms? A mixed methods study protocol in northern Sweden. AB - BACKGROUND: The purpose of this paper is to propose a protocol for researching the impact of rural youth health service strategies on health care access. There has been no published comprehensive assessment of the effectiveness of youth health strategies in rural areas, and there is no clearly articulated model of how such assessments might be conducted. The protocol described here aims to gather information to; i) Assess rural youth access to health care according to their needs, ii) Identify and understand the strategies developed in rural areas to promote youth access to health care, and iii) Propose actions for further improvement. The protocol is described with particular reference to research being undertaken in the four northernmost counties of Sweden, which contain a widely dispersed and diverse youth population. METHODS: The protocol proposes qualitative and quantitative methodologies sequentially in four phases. First, to map youth access to health care according to their health care needs, including assessing horizontal equity (equal use of health care for equivalent health needs,) and vertical equity (people with greater health needs should receive more health care than those with lesser needs). Second, a multiple case study design investigates strategies developed across the region (youth clinics, internet applications, public health programs) to improve youth access to health care. Third, qualitative comparative analysis of the 24 rural municipalities in the region identifies the best combination of conditions leading to high youth access to health care. Fourth, a concept mapping study involving rural stakeholders, care providers and youth provides recommended actions to improve rural youth access to health care. DISCUSSION: The implementation of this research protocol will contribute to 1) generating knowledge that could contribute to strengthening rural youth access to health care, as well as to 2) advancing the application of mixed methods to explore access to health care. PMID- 29325554 TI - An analysis of the global pharmacy workforce capacity trends from 2006 to 2012. AB - BACKGROUND: Human resources for health are at a critical low. The World Health Organization estimates that the current shortage of health workers, including pharmacists, is in excess of 7.2 million worldwide and that, by 2035, the shortage will reach 12.9 million. Pharmacists, in particular, are lacking in the workforce in many countries. The International Pharmaceutical Federation (FIP) and academic partners have conducted periodic global pharmacy workforce surveys in 2006, 2009 and 2012 which have monitored and reported on the status of the pharmacy workforce at the country and territory levels. This current analysis is a synthesis of workforce capacity data from these date points to provide an overview of the global trends and changes to pharmacy workforce capacity over this time period. METHODS: The methodology proceeded with accessing workforce capacity data collated in 2006, 2009 and 2012 held on file at the FIP Collaborating Centre. This data had previously been validated and made available to WHO Human Resources for Health. The data focused (due to limitations from 2006 databank) on pharmacist workforce capacity. Countries and territories were identified that had data available across at least two of the three time points (2006, 2009 and 2012). Missing time-point data for some countries (data gaps) were subject, where possible, to literature and online data searching to capture possible missing data. Country-level capacity data were plotted against time to identify trends coupled with comparative analysis of the trends. RESULTS: The countries and territories identified as having valid data for each of the time points 2006, 2009 and 2012 were present in all WHO regions, with Europe having the most countries with data available and South East Asia the fewest. All WHO regions have experienced an increase in the density of pharmacists (measured as number of pharmacists per 10 000 population) over the period 2006-2012. However, some countries show a reduction in the density of pharmacists. African countries show large relative increases in acceleration of capacity building but remain significantly behind in terms of absolute capacity per capita. South East Asian and Middle Eastern countries also show large proportional changes in pharmacist workforce. CONCLUSION: The global trend is an increase in workforce across all nations and regions, and this is a move in the right direction towards improved access to, and availability of, pharmaceutical expertise. However, there is still much to be done, with some regions and low-income countries still displaying a disproportionately low number of pharmacists on small overall capacity for delivering pharmacy services. PMID- 29325553 TI - Sitagliptin improved glucose assimilation in detriment of fatty-acid utilization in experimental type-II diabetes: role of GLP-1 isoforms in Glut4 receptor trafficking. AB - BACKGROUND: The distribution of glucose and fatty-acid transporters in the heart is crucial for energy consecution and myocardial function. In this sense, the glucagon-like peptide-1 (GLP-1) enhancer, sitagliptin, improves glucose homeostasis but it could also trigger direct cardioprotective actions, including regulation of energy substrate utilization. METHODS: Type-II diabetic GK (Goto Kakizaki), sitagliptin-treated GK (10 mg/kg/day) and wistar rats (n = 10, each) underwent echocardiographic evaluation, and positron emission tomography scanning for [18F]-2-fluoro-2-deoxy-D-glucose (18FDG). Hearts and plasma were isolated for biochemical approaches. Cultured cardiomyocytes were examined for receptor distribution after incretin stimulation in high fatty acid or high glucose media. RESULTS: Untreated GK rats exhibited hyperglycemia, hyperlipidemia, insulin resistance, and plasma GLP-1 reduction. Moreover, GK myocardium decreased 18FDG assimilation and diastolic dysfunction. However, sitagliptin improved hyperglycemia, insulin resistance, and GLP-1 levels, and additionally, enhanced 18FDG uptake and diastolic function. Sitagliptin also stimulated the sarcolemmal translocation of the glucose transporter-4 (Glut4), in detriment of the fatty acyl translocase (FAT)/CD36. In fact, Glut4 mRNA expression and sarcolemmal translocation were also increased after GLP-1 stimulation in high-fatty acid incubated cardiomyocytes. PI3K/Akt and AMPKalpha were involved in this response. Intriguingly, the GLP-1 degradation metabolite, GLP-1(9-36), showed similar effects. CONCLUSIONS: Besides of its anti-hyperglycemic effect, sitagliptin enhanced GLP-1 may ameliorate diastolic dysfunction in type-II diabetes by shifting fatty acid to glucose utilization in the cardiomyocyte, and thus, improving cardiac efficiency and reducing lipolysis. PMID- 29325555 TI - The readiness of hospital pharmacists in Kuwait to practise evidence-based medicine: a cross-sectional study. AB - BACKGROUND: The evolving role of pharmacists in providing pharmaceutical care, as part of the healthcare team, challenges them to acquire up-to-date knowledge of medicines to make the best clinical decisions. The volume of medical literature is on the increase, and it is important to utilise these resources to optimise patients' therapeutic outcomes. This study aimed at assessing the readiness of government hospital pharmacists in practising evidence-based medicine (EBM) in Kuwait in regards to their attitude, knowledge and skills, as well as the perceived barriers and facilitators. METHODS: This descriptive cross-sectional study used pre-tested self-reported questionnaires to collect information from pharmacists working at government hospitals in Kuwait. In addition, one-to-one, face-to-face semi-structured interviews were conducted with the chief pharmacists of all health regions in Kuwait to discuss and identify the barriers and facilitators of implementing EBM in the hospitals. Quantitative and qualitative analytical measures were undertaken for the data acquired from the questionnaires and interviews, respectively. RESULTS: A total of 176 pharmacists (of 445) working in secondary and tertiary government hospitals in Kuwait agreed to take part in the study, giving a response rate of 40%. Over half of the study sample (n = 94, 53.4%) had good confidence in performing online database searches. Approximately 50% of the pharmacists were familiar with searching the Internet for medical resources, asking answerable clinical questions and retrieving research evidence. However, 67% of the pharmacists (n = 118) were neither able to apply research evidence to patient care nor capable of identifying knowledge gaps in practice. Barriers to EBM practice were identified, which included limited access to EBM resources (75%), a lack of time and patient overload (71.6%). The interview results confirmed the willingness of the hospital pharmacists to adopt EBM in their practice if necessary resources such as computers and internet connection were provided. CONCLUSION: The hospital pharmacists in Kuwait showed good attitude and willingness towards EBM, however, they need to acquire adequate knowledge and skills for applying it in "real life" practise. Using the current results, clinical implications were recommended to demonstrate how to overcome the barriers, wherein hospital pharmacists could be ready to practice EBM. PMID- 29325556 TI - Forecasting imbalances in the global health labor market and devising policy responses. AB - BACKGROUND: The High-Level Commission on Health Employment and Economic Growth released its report to the United Nations Secretary-General in September 2016. It makes important recommendations that are based on estimates of over 40 million new health sector jobs by 2030 in mostly high- and middle-income countries and a needs-based shortage of 18 million, mostly in low- and middle-income countries. This paper shows how these key findings were developed, the global policy dilemmas they raise, and relevant policy solutions. METHODS: Regression analysis is used to produce estimates of health worker need, demand, and supply. Projections of health worker need, demand, and supply in 2030 are made under the assumption that historical trends continue into the future. RESULTS: To deliver essential health services required for the universal health coverage target of the Sustainable Development Goal 3, there will be a need for almost 45 million health workers in 2013 which is projected to reach almost 53 million in 2030 (across 165 countries). This results in a needs-based shortage of almost 17 million in 2013. The demand-based results suggest a projected demand of 80 million health workers by 2030. CONCLUSIONS: Demand-based analysis shows that high- and middle-income countries will have the economic capacity to employ tens of millions additional health workers, but they could face shortages due to supply not keeping up with demand. By contrast, low-income countries will face both low demand for and supply of health workers. This means that even if countries are able to produce additional workers to meet the need threshold, they may not be able to employ and retain these workers without considerably higher economic growth, especially in the health sector. PMID- 29325557 TI - Bidirectional associations between mothers' feeding practices and child eating behaviours. AB - BACKGROUND: This study examined bidirectional relationships between maternal feeding practices and child food responsiveness and satiety responsiveness from 2 to 5 years. METHODS: Mothers (N = 207) reported their own feeding practices and child eating behaviours using validated questionnaires at child ages 2, 3.7, and 5 years. Cross-lagged analyses were conducted to test for bidirectional effects, adjusting for child BMI z-score (based on measured weight and height) at 14 months. RESULTS: Eating behaviours and feeding practices showed strong continuity across the three time points. Maternal feeding practices (higher reward for behaviour [beta = 0.12, p = 0.025] and lower covert restriction [beta = -0.14, p = 0.008]) were prospectively associated with higher food responsiveness. Conversely, increased child satiety responsiveness was primarily prospectively associated with mothers' feeding practices (increased structured meal timing [beta = 0.11, p = 0.038], overt [beta = 0.14, p = 0.010] and covert restriction [beta = 0.11, p = 0.022]). The only exception was family meal setting, which was prospectively negatively associated with satiety responsiveness (beta = -0.11, p = 0.035). CONCLUSION: While maternal feeding practices and child satiety and food responsiveness show strong continuity between child age 2 and 5 years, maternal feeding practices appear to be associated with child food responsiveness over time. Conversely, child satiety responsiveness, but not food responsiveness, may also be associated with maternal feeding practices over time. These results are consistent with interventions that provide feeding advice to parents on how to respond appropriately to individual child eating behaviour phenotype. TRIAL REGISTRATION: ACTRN12608000056392 . Registered 29 January 2008. PMID- 29325559 TI - Pangenome analyses of the wheat pathogen Zymoseptoria tritici reveal the structural basis of a highly plastic eukaryotic genome. AB - BACKGROUND: Structural variation contributes substantially to polymorphism within species. Chromosomal rearrangements that impact genes can lead to functional variation among individuals and influence the expression of phenotypic traits. Genomes of fungal pathogens show substantial chromosomal polymorphism that can drive virulence evolution on host plants. Assessing the adaptive significance of structural variation is challenging, because most studies rely on inferences based on a single reference genome sequence. RESULTS: We constructed and analyzed the pangenome of Zymoseptoria tritici, a major pathogen of wheat that evolved host specialization by chromosomal rearrangements and gene deletions. We used single-molecule real-time sequencing and high-density genetic maps to assemble multiple genomes. We annotated the gene space based on transcriptomics data that covered the infection life cycle of each strain. Based on a total of five telomere-to-telomere genomes, we constructed a pangenome for the species and identified a core set of 9149 genes. However, an additional 6600 genes were exclusive to a subset of the isolates. The substantial accessory genome encoded on average fewer expressed genes but a larger fraction of the candidate effector genes that may interact with the host during infection. We expanded our analyses of the pangenome to a worldwide collection of 123 isolates of the same species. We confirmed that accessory genes were indeed more likely to show deletion polymorphisms and loss-of-function mutations compared to core genes. CONCLUSIONS: The pangenome construction of a highly polymorphic eukaryotic pathogen showed that a single reference genome significantly underestimates the gene space of a species. The substantial accessory genome provides a cradle for adaptive evolution. PMID- 29325558 TI - Systematic target function annotation of human transcription factors. AB - BACKGROUND: Transcription factors (TFs), the key players in transcriptional regulation, have attracted great experimental attention, yet the functions of most human TFs remain poorly understood. Recent capabilities in genome-wide protein binding profiling have stimulated systematic studies of the hierarchical organization of human gene regulatory network and DNA-binding specificity of TFs, shedding light on combinatorial gene regulation. We show here that these data also enable a systematic annotation of the biological functions and functional diversity of TFs. RESULT: We compiled a human gene regulatory network for 384 TFs covering the 146,096 TF-target gene (TF-TG) relationships, extracted from over 850 ChIP-seq experiments as well as the literature. By integrating this network of TF-TF and TF-TG relationships with 3715 functional concepts from six sources of gene function annotations, we obtained over 9000 confident functional annotations for 279 TFs. We observe extensive connectivity between TFs and Mendelian diseases, GWAS phenotypes, and pharmacogenetic pathways. Further, we show that TFs link apparently unrelated functions, even when the two functions do not share common genes. Finally, we analyze the pleiotropic functions of TFs and suggest that the increased number of upstream regulators contributes to the functional pleiotropy of TFs. CONCLUSION: Our computational approach is complementary to focused experimental studies on TF functions, and the resulting knowledge can guide experimental design for the discovery of unknown roles of TFs in human disease and drug response. PMID- 29325561 TI - Workforce patterns in the prevention of mother to child transmission of HIV in Cote d'Ivoire: a qualitative model. AB - BACKGROUND: Cote d'Ivoire continues to struggle with one of the highest rates of mother-to-child HIV transmission in West Africa, previously thought to be in part due to suboptimal workforce patterns. This study aimed to understand the process through which workforce patterns impact prevention of mother-to child transmission of HIV (PMTCT) program success, from the perspective of healthcare workers in Cote d'Ivoire. METHODS: A total of 142 semi-structured interviews were conducted with physicians, midwives, nurses, community counselors, social workers, pharmacists, management personnel and health aides from a nationally representative sample of 48 PMTCT sites across Cote d'Ivoire. RESULTS: Healthcare workers described three categories of workforce patterns that they perceived to be affecting PMTCT success: workforce inputs, healthcare roles and responsibilities, and facilitators of task performance. According to their descriptions, PMTCT success depends on the presence of an adequate and trained PMTCT workforce, with an interdisciplinary team of healthcare workers with flexible roles and expanded task responsibilities, and whose tasks are translated into patient care through collaboration, ongoing trainings, and appropriate motivators. CONCLUSIONS: This study provides a model for understanding the impact of workforce patterns on PMTCT success in Cote d'Ivoire and provides insight into workforce-related facilitators and barriers of program performance that should be targeted in future research and interventions. It highlights the importance of workforce integration and collaboration between healthcare workers. PMID- 29325560 TI - Feasibility and predictive performance of the Hendrich Fall Risk Model II in a rehabilitation department: a prospective study. AB - BACKGROUND: Falls are a common adverse event in both elderly inpatients and patients admitted to rehabilitation units. The Hendrich Fall Risk Model II (HIIFRM) has been already tested in all hospital wards with high fall rates, with the exception of the rehabilitation setting. This study's aim is to address the feasibility and predictive performances of HIIFRM in a hospital rehabilitation department. METHODS: A 6 months prospective study in a Italian rehabilitation department with patients from orthopaedic, pulmonary, and neurological rehabilitation wards. All admitted patients were enrolled and assessed within 24 h of admission by means of the HIIFRM. The occurrence of falls was checked and recorded daily. HIIFRM feasibility was assessed as the percentage of successful administrations at admission. HIIFRM predictive performance was determined in terms of area under the Receiver Operating Characteristic (ROC) curve (AUC), best cutoff, sensitivity, specificity, positive and negative predictive values, along with their asymptotic 95% confidence intervals (95% CI). RESULTS: One hundred ninety-one patents were admitted. HIIFRM was feasible in 147 cases (77%), 11 of which suffered a fall (7.5%). Failures in administration were mainly due to bedridden patients (e.g. minimally conscious state, vegetative state). AUC was 0.779(0.685-0.873). The original HIIFRM cutoff of 5 led to a sensitivity of 100% with a mere specificity of 49%(40-57%), thus suggesting using higher cutoffs. Moreover, the median score for non-fallers at rehabilitation units was higher than that reported in literature for geriatric non fallers. The best trade-off between sensitivity and specificity was obtained by using a cutoff of 8. This lead to sensitivity = 73%(46-99%), specificity = 72%(65-80%), positive predictive value = 17% and negative predictive value = 97%. These results support the use of the HIIFRM as a predictive tool. CONCLUSIONS: The HIIFRM showed satisfactory feasibility and predictive performances in rehabilitation wards. Based on both available literature and these results, the prediction of falls among all hospital wards, with high risk of falling, could be achieved by means of a unique tool and two different cutoffs: a standard cutoff of 5 in geriatric wards and an adjusted higher cutoff in rehabilitation units, with predictive performances similar to those of the best-preforming pathology specific tools for fall-risk assessment. PMID- 29325562 TI - Increased epicardial adipose tissue thickness is a predictor of new-onset diabetes mellitus in patients with coronary artery disease treated with high intensity statins. AB - BACKGROUND: Statins are widely used for lipid lowering in patients with coronary artery disease (CAD), but increasing evidence indicates an association between statin use and new-onset of diabetes mellitus (NODM). Epicardial adipose tissue (EAT) refers to the visceral fat surrounding the heart, which is associated with metabolic diseases. We sought to determine the association between EAT thickness and NODM in CAD patients treated with high-intensity statins. METHODS: We conducted a retrospective medical record review of CAD patients treated with high intensity statins for at least 6 months after percutaneous coronary intervention performed between January 2009 and June 2013 at Seoul National University Bundang Hospital. EAT thickness was measured by echocardiography using standardized methods. RESULTS: A total of 321 patients were enrolled, who received high intensity statins for a mean of 952 days; atorvastatin 40 mg in 204 patients (63.6%), atorvastatin 80 mg in 57 patients (17.8%), and rosuvastatin 20 mg in 60 patients (18.7%). During the follow-up period of 3.9 +/- 1.7 years, NODM occurred in 40 patients (12.5%). On Cox proportional-hazard regression analysis, EAT thickness at systole [for each 1 mm: hazard ratio (HR) 1.580; 95% confidence interval (CI) 1.346-1.854; P < 0.001] and prediabetes at baseline (HR 4.321; 95% CI 1.998-9.349; P < 0.001) were the only independent predictors of NODM. Using binary cutoff values derived from the receiver operating characteristic curve analysis, EAT thickness at systole larger than 5.0 mm had an HR of 3.402 (95% CI 1.751-6.611, P < 0.001), sensitivity of 52.5%, and specificity of 80.8% for predicting NODM. Also, patients with EAT thickness >= 5 mm and prediabetes at baseline had a 12.0-times higher risk of developing NODM compared to the risk noted in patients with EAT thickness < 5 mm and normal glucose tolerance at baseline. CONCLUSION: Epicardial adipose tissue thickness at systole is a consistent independent predictor of NODM in patients with CAD treated with high intensity statins. Such predictors may help physicians plan adequate surveillance for early detection of NODM. PMID- 29325563 TI - Healthcare information systems: the cognitive challenge. AB - BACKGROUND: Healthcare work is, to a considerable extent, cognitive. Subsequently, the analysis and the design of supporting technology must be sensitive to the cognitive and adaptive demands of the work and to the cognitive strategies employed by healthcare practitioners. Despite the vital role that cognition plays in healthcare work, current technocentric design approaches for healthcare technology do not account for it, failing to observe it during analysis and failing to develop support for it during design. MAIN BODY: By review and analysis of case studies, we show that healthcare systems developed without input from cognitive analysis and cognitive design fail to take account of important healthcare work processes and workflows. In contrast, systems developed with a cognitively-focused design strategy demonstrate how it is possible to introduce technology that supports and enhances the work strategies of those engaged in patient care. CONCLUSION: Significant problems emerge when technological support systems are developed without any serious and comprehensive attempt to understand the cognitive capabilities and skills deployed by those involved in patient care. In contrast, significant benefits accrue from taking full account of those cognitive capabilities and skills. Subsequently, the design and development of supporting technology must be sensitive to the cognitive demands of the work and the cognitive strategies employed by healthcare practitioners. PMID- 29325566 TI - Male breast cancer: diagnosis stages, treatment and survival in a country with limited resources (Burkina Faso). AB - BACKGROUND: Male breast cancer is a rare and less known disease. Therapeutic modalities affect survival. In Burkina Faso, male breast cancers are diagnosed in everyday practice, but the prognosis at short-, middle-, and long-term remains unknown. The objective of this study is to study the diagnosis stages, therapeutic modalities, and 5-year survival in male breast cancer at the General Surgery Unit of Yalgado Ouedraogo University Hospital from 1990 to 2009. METHODS: A cohort longitudinal study concerning cases of breast cancer diagnosed in man. Survival was assessed using the Kaplan-Meier method and survival curves were compared through the LogRank test. RESULTS: Fifty-one cases of male breast cancer were followed-up, i.e., 2.6% of all breast cancers. Stages III and IV represented 88% of cases. Eleven patients (21.6%) were at metastatic stage. Patients were operated in 60.8% of cases. The surgery included axillary dissection in 25 (80.6%) out of 31 cases. Lumpectomy was performed on 6.5% of patients (2 cases). Fifteen (29.4%) and 11 (21.6%) patients underwent chemotherapy and hormonal therapy, respectively. The FAC protocol was mostly used. Radiation therapy was possible in two cases. The median deadline for follow-up was 14.8 months. A local recurrence was noticed in 3.2% of cases. The overall 5-year survival rate was 49.9%. The median survival was over 5 years for stages I and II. It was 54 down to 36 months for stages III and IV. CONCLUSION: Diagnosis is late. The lack of immunohistochemistry makes it difficult to define the proportion of their hormonal dependence. Surgery is the basic treatment. Five-year survival is slow and the median survival depends on the diagnosis stage. It can be improved through awareness-raising campaigns and the conduct of individual screening. PMID- 29325564 TI - Engineered recombinant protein products of the avian paramyxovirus type-1 nucleocapsid and phosphoprotein genes for serological diagnosis. AB - BACKGROUND: Virulent Newcastle disease virus (NDV, avian Avulavirus-1, APMV-1) induces a highly contagious and lethal systemic disease in gallinaceous poultry. APMV-1 antibody detection is used for surveillance and to control vaccination, but is hampered by cross-reactivity to other subtypes of avian Avulaviruses. Data are lacking concerning the applicability of NDV V proteins as differential diagnostic marker to distinguish vaccinated from virus-infected birds (DIVA strategy). METHODS: Full length and C-terminally truncated nucleocapsid (NP) protein, and the unique C-terminal regions of the phospho- (P) and V proteins of the NDV LaSota strain were bacterially expressed as fusion proteins with the multimerization domain of the human C4 binding protein, and used as diagnostic antigens in indirect ELISA. RESULTS: When used as diagnostic antigen in indirect ELISAs, recombinant full-length proved to be a sensitive target to detect seroconversion in chickens after APMV-1 vaccination and infection, but revealed some degree of cross reactivity with sera raised against other APMV subtypes. Cross reactivity was abolished but also sensitivity decreased when employing a C terminal fragment of the NP of NDV as diagnostic antigen. Antibodies to the NDV V protein were mounted in poultry following NDV infection but also, albeit at lower rates and titers, after vaccination with attenuated NDV vaccines. V-specific seroconversion within the flock was incomplete and titers in individual bird transient. CONCLUSIONS: Indirect ELISA based on bacterially expressed recombinant full-length NP compared favorably with a commercial NDV ELISA based on whole virus antigen, but cross reactivity between the NP proteins of different APMV subtypes could compromise specificity. However, specificity increased when using a less conserved C-terminal fragment of NP instead. Moreover, a serological DIVA strategy built on the NDV V protein was not feasible due to reduced immunogenicity of the V protein and frequent use of live-attenuated NDV vaccines. PMID- 29325565 TI - Impact of social relationships on Alzheimer's memory impairment: mechanistic studies. AB - Alzheimer's disease (AD) is characterized by progressive memory and neuronal loss culminating in cognitive impairment that not only affects a person's living ability but also becomes a society's as well as a family's economic burden. AD is the most common form of dementia in older persons. It is expected that the number of people with AD dementia will increase dramatically in the next 30 years, projecting to 75 million in 2030 and 131.5 million in 2050 worldwide. So far, no sufficient evidence is available to support that any medicine is able to prevent or reverse the progression of the disease. Early studies have shown that social environment, particularly social relationships, can affect one's behavior and mental health. A study analyzing the correlation between loneliness and risk of developing AD revealed that lonely persons had higher risk of AD compared with persons who were not lonely. On the other hand, it has been reported that we can prevent cognitive decline and delay the onset of AD if we keep mentally active and frequently participate in social activities. In this review, we focus on the impact of social behaviors on the progression of cognitive deficit in animal models of AD with a particular emphasis on a mechanistic scheme that explains how social isolation exacerbates cognitive impairment and how social interaction with conspecifics rescues AD patients' memory deficit. PMID- 29325567 TI - Identifying older adults at risk of harm following elective surgery: a systematic review and meta-analysis. AB - BACKGROUND: Elective surgeries can be associated with significant harm to older adults. The present study aimed to identify the prognostic factors associated with the development of postoperative complications among older adults undergoing elective surgery. METHODS: Medline, EMBASE, CINAHL, Cochrane Central Register of Controlled Trials, and AgeLine were searched for articles published between inception and April 21, 2016. Prospective studies reporting prognostic factors associated with postoperative complications (composite outcome of medical and surgical complications), functional decline, mortality, post-hospitalization discharge destination, and prolonged hospitalization among older adults undergoing elective surgery were included. Study characteristics and prognostic factors associated with the outcomes of interest were extracted independently by two reviewers. Random effects meta-analysis models were used to derive pooled effect estimates for prognostic factors and incidences of adverse outcomes. RESULTS: Of the 5692 titles and abstracts that were screened for inclusion, 44 studies (12,281 patients) reported on the following adverse postoperative outcomes: postoperative complications (n =28), postoperative mortality (n = 11), length of hospitalization (n = 21), functional decline (n = 6), and destination at discharge from hospital (n = 13). The pooled incidence of postoperative complications was 25.17% (95% confidence interval (CI) 18.03-33.98%, number needed to follow = 4). The geriatric syndromes of frailty (odds ratio (OR) 2.16, 95% CI 1.29-3.62) and cognitive impairment (OR 2.01, 95% CI 1.44-2.81) were associated with developing postoperative complications; however, there was no association with traditionally assessed prognostic factors such as age (OR 1.07, 95% CI 1.00-1.14) or American Society of Anesthesiologists status (OR 2.62, 95% CI 0.78-8.79). Besides frailty, other potentially modifiable prognostic factors, including depressive symptoms (OR 1.77, 95% CI 1.22-2.56) and smoking (OR 2.43, 95% CI 1.32-4.46), were also associated with developing postoperative complications. CONCLUSION: Geriatric syndromes are important prognostic factors for postoperative complications. We identified potentially modifiable prognostic factors (e.g., frailty, depressive symptoms, and smoking) associated with developing postoperative complications that can be targeted preoperatively to optimize care. PMID- 29325569 TI - The relevance of clinical ethnography: reflections on 10 years of a cultural consultation service. AB - BACKGROUND: Training health professionals in culturally sensitive medical interviewing has been widely promoted as a strategy for improving intercultural communication and for helping clinicians to consider patients' social and cultural contexts and improve patient outcomes. Clinical ethnography encourages clinicians to explore the patient's explanatory model of illness, recourse to traditional and alternative healing practices, healthcare expectations and social context, and to use this information to negotiate a mutually acceptable treatment plan. However, while clinical ethnographic interviewing skills can be successfully taught and learned, the "real-world" context of medical practice may impose barriers to such patient-centered interviewing. Creating opportunities for role modeling and critical reflection may help overcome some of these barriers, and contribute to improved intercultural communication in healthcare. We report and reflect on a retrospective analysis of 10 years experience with a "cultural consultation service" (CCS) whose aim is to provide direct support to clinicians who encounter intercultural difficulties and to model the usefulness of clinical ethnographic interviewing for patient care. METHODS: We analyzed 236 cultural consultation requests in order to identify key patient, provider and consultation characteristics, as well as the cross cultural communication challenges that motivate health care professionals to request a cultural consultation. In addition, we interviewed 51 clinicians about their experience and satisfaction with the CCS. RESULTS: Requests for cultural consultations tended to involve patient care situations with complex social, cultural and medical issues. All patients had a migration background, two-thirds spoke French less than fluently. In over half the cases, patients had a high degree of social vulnerability, compromising illness management. Effective communication was hindered by language barriers and undetected or underestimated patient/provider differences in health related knowledge and beliefs. Clinicians were highly satisfied with the CCS, and appreciated both the opportunity to observe how clinical ethnographic interviewing is done and the increased knowledge they gained of their patients' context and perspective. CONCLUSIONS: A cultural consultation service such as ours can contribute to institutional cultural competence by drawing attention to the challenges of caring for diverse patient populations, identifying the training needs of clinicians and gaps in resource provision, and providing hands on experience with clinical ethnographic interviewing. PMID- 29325570 TI - De novo assembly of the complex genome of Nippostrongylus brasiliensis using MinION long reads. AB - BACKGROUND: Eukaryotic genome assembly remains a challenge in part due to the prevalence of complex DNA repeats. This is a particularly acute problem for holocentric nematodes because of the large number of satellite DNA sequences found throughout their genomes. These have been recalcitrant to most genome sequencing methods. At the same time, many nematodes are parasites and some represent a serious threat to human health. There is a pressing need for better molecular characterization of animal and plant parasitic nematodes. The advent of long-read DNA sequencing methods offers the promise of resolving complex genomes. RESULTS: Using Nippostrongylus brasiliensis as a test case, applying improved base-calling algorithms and assembly methods, we demonstrate the feasibility of de novo genome assembly matching current community standards using only MinION long reads. In doing so, we uncovered an unexpected diversity of very long and complex DNA sequences repeated throughout the N. brasiliensis genome, including massive tandem repeats of tRNA genes. CONCLUSION: Base-calling and assembly methods have improved sufficiently that de novo genome assembly of large complex genomes is possible using only long reads. The method has the added advantage of preserving haplotypic variants and so has the potential to be used in population analyses. PMID- 29325568 TI - PINK1 import regulation; a fine system to convey mitochondrial stress to the cytosol. AB - Insights from inherited forms of parkinsonism suggest that insufficient mitophagy may be one etiology of the disease. PINK1/Parkin-dependent mitophagy, which helps maintain a healthy mitochondrial network, is initiated by activation of the PINK1 kinase specifically on damaged mitochondria. Recent investigation of this process reveals that import of PINK1 into mitochondria is regulated and yields a stress sensing mechanism. In this review, we focus on the mechanisms of mitochondrial stress-dependent PINK1 activation that is exerted by regulated import of PINK1 into different mitochondrial compartments and how this offers strategies to pharmacologically activate the PINK1/Parkin pathway. PMID- 29325571 TI - Development of a hospital-based patient-reported outcome framework for lung cancer patients: a study protocol. AB - BACKGROUND: Patient-reported outcome (PRO) data is central to the delivery of quality health care. Establishing sustainable, reliable and cost-efficient methods for routine collection and integration of PRO data into health information systems is challenging. This protocol paper describes the design and structure of a study to develop and pilot test a PRO framework to systematically and longitudinally collect PRO data from a cohort of lung cancer patients at a comprehensive cancer centre in Australia. METHODS: Best-practice guidelines for developing registries aimed at collecting PROs informed the development of this PRO framework. Framework components included: achieving consensus on determining the purpose of the framework, the PRO measures to be included, the data collection time points and collection methods (electronic and paper), establishing processes to safeguard the quality of the data collected and to link the PRO framework to an existing hospital-based lung cancer clinical registry. Lung cancer patients will be invited to give feedback on the PRO measures (PROMs) chosen and the data collection time points and methods. Implementation of the framework will be piloted for 12 months. Then a mixed-methods approach used to explore patient and multidisciplinary perspectives on the feasibility of implementing the framework and linking it to the lung cancer clinical registry, its clinical utility, perceptions of data collection burden, and preliminary assessment of resource costs to integrate, implement and sustain the PRO framework. The PRO data set will include: a quality of life questionnaire (EORTC QLQ-C30) and the EORTC lung cancer specific module (QLQC-LC-13). These will be collected pre-treatment (baseline), 2, 6 and 12 months post-baseline. Also, four social isolation questions (PROMIS) will be collected at baseline. DISCUSSION: Identifying and deciding on the overall purpose, clinical utility of data and which PROs to collect from patients requires careful consideration. Our study will explore how PRO data collection processes that link to a clinical data set can be developed and integrated; how PRO systems that are easy for patients to complete and professionals to use in practice can be achieved, and will provide indicative costs of developing and integrating a longitudinal PRO framework into routine hospital data collection systems. TRIAL REGISTRATION: This study is not a clinical trial and is therefore not registered in any trial registry. However, it has received human research ethics approval (LNR/16/PMCC/45). PMID- 29325572 TI - Modeling the relationship between women's perceptions and future intention to use institutional maternity care in the Western Highlands of Guatemala. AB - BACKGROUND: Despite global gains, women in hard-to-reach areas are at a relatively higher risk of death and disability related to childbirth. Traditional methods of measuring satisfaction may mask negative experiences (such as disrespect and abuse) that can drive down demand for institutional care. Better measurement of women's perceptions of care quality, especially among marginalized populations with historically low utilization of institutional care, are needed to inform how to improve services and foster greater utilization of (potentially life-saving) clinical care. METHODS: A population-based household survey was conducted in 15 purposively selected villages in the rural Western Highlands of Guatemala among women who gave birth to a child within the last 5 years. Demographic and health information including experiences and perceptions of maternity care were collected. Two sets of nested multivariate logistic regression models were estimated to identify factors associated with future intention to give birth in a health facility, separately among women who gave birth to their last child at home and women who gave birth to their last child in a facility. The independent variables of interest were access to care, perceived need for maternity care, and two measures of perceived quality: satisfaction with last birth and disrespect and abuse (perceived or experienced). Thematic analysis was performed on open-ended responses. RESULTS: Perceived need for facility-based childbirth services and satisfaction with last childbirth experience, either at home or in a facility, emerged as the key factors influencing intention to give birth in a health institution in the future. Among the facility birth group, reporting disrespect and abuse is a deterrent to seeking facility-based care in the future. However, select perceptions of disrespect and abuse did not have an association with future intention (among the home birth group). CONCLUSIONS: Women's perceptions of care quality influence care-seeking. Women who feel they were mistreated in health facilities are more likely to avoid or delay seeking care in the future. Health systems need to reinforce trust and positive perceptions of respectful care. Developing better measures of women's perceptions of maternity care experiences among indigenous populations in Guatemala can inform improvements in care provision. PMID- 29325574 TI - Applied global health diplomacy: profile of health diplomats accredited to the UNITED STATES and foreign governments. AB - BACKGROUND: Global health diplomacy (GHD) is a burgeoning field bridging the priorities of global health and foreign affairs. Given the increasing need to mobilize disparate global health stakeholders coupled with the need to design complex public health partnerships to tackle issues of international concern, effective and timely cooperation among state actors is critical. Health Attaches represent this coordination focal point and are key diplomatic professionals at the forefront of GHD. Despite their unique mandate, little is published about this profession and the perspectives of those who work in the field. METHODS: Through purposive sampling, we performed in-depth qualitative interviews with seven Health Attaches: three foreign Health Attaches accredited to the United States and four U.S. Health Attaches accredited to foreign governments. Our interviews explored four key topics: the role and mission of Health Attaches, skills needed to perform GHD, examples of successes and challenges in accomplishing their respective missions, and suggestions for the future development of the diplomatic profession. RESULTS: We identified several lessons to apply to the growing field of GHD. First, GHD actors need to receive appropriate training to successfully negotiate the intersection of global health and foreign affairs. Participants suggested several areas of training that would benefit GHD actors: diplomacy and negotiation, applied science, and cross cultural competency. Second, participants articulated the need for a career path for GHD practitioners, increased opportunities for on-the-job training and mentored experiences, and GHD competencies with defined levels of mastery that can be used in occupational evaluation and career development. CONCLUSIONS: Our findings indicate that skills in diplomacy and negotiation, applied science, and cross cultural competency are essential for the statecraft of Health Attaches. Additionally, establishing a clear career pathway for Health Attaches is critical for future maturation of the profession and for fostering effective global health action that aligns public health and foreign diplomacy outcomes. Achieving these goals would ensure that this special cadre of diplomats could effectively practice GHD and would also better position Health Attaches to take the lead in advancing shared global health goals among nation states in a new era of twenty first century diplomacy. PMID- 29325575 TI - Routinely collected data for randomized trials: promises, barriers, and implications. AB - BACKGROUND: Routinely collected health data (RCD) are increasingly used for randomized controlled trials (RCTs). This can provide three major benefits: increasing value through better feasibility (reducing costs, time, and resources), expanding the research agenda (performing trials for research questions otherwise not amenable to trials), and offering novel design and data collection options (e.g., point-of-care trials and other designs directly embedded in routine care). However, numerous hurdles and barriers must be considered pertaining to regulatory, ethical, and data aspects, as well as the costs of setting up the RCD infrastructure. Methodological considerations may be different from those in traditional RCTs: RCD are often collected by individuals not involved in the study and who are therefore blinded to the allocation of trial participants. Another consideration is that RCD trials may lead to greater misclassification biases or dilution effects, although these may be offset by randomization and larger sample sizes. Finally, valuable insights into external validity may be provided when using RCD because it allows pragmatic trials to be performed. METHODS: We provide an overview of the promises, challenges, and potential barriers, methodological implications, and research needs regarding RCD for RCTs. RESULTS: RCD have substantial potential for improving the conduct and reducing the costs of RCTs, but a multidisciplinary approach is essential to address emerging practical barriers and methodological implications. CONCLUSIONS: Future research should be directed toward such issues and specifically focus on data quality validation, alternative research designs and how they affect outcome assessment, and aspects of reporting and transparency. PMID- 29325576 TI - Reanalysis of Chinese Treponema pallidum samples: all Chinese samples cluster with SS14-like group of syphilis-causing treponemes. AB - OBJECTIVE: Treponema pallidum subsp. pallidum (TPA) is the causative agent of syphilis. Genetic analyses of TPA reference strains and human clinical isolates have revealed two genetically distinct groups of syphilis-causing treponemes, called Nichols-like and SS14-like groups. So far, no genetic intermediates, i.e. strains containing a mixed pattern of Nichols-like and SS14-like genomic sequences, have been identified. Recently, Sun et al. (Oncotarget 2016. https://doi.org/10.18632/oncotarget.10154 ) described a new "phylogenetic group" (called Lineage 2) among Chinese TPA strains. This lineage exhibited a "mosaic genomic structure" of Nichols-like and SS14-like lineages. RESULTS: We reanalyzed the primary sequencing data (Project Number PRJNA305961) from the Sun et al. publication with respect to the molecular basis of Lineage 2. While Sun et al. based the analysis on several selected genomic single nucleotide variants (SNVs) and a subset of highly variable but phylogenetically poorly informative genes, which may confound the phylogenetic analysis, our reanalysis primarily focused on a complete set of whole genomic SNVs. Based on our reanalysis, only two separate TPA clusters were identified: one consisted of Nichols-like TPA strains, the other was formed by the SS14-like TPA strains, including all Chinese strains. PMID- 29325573 TI - Genetic diversity of three surface protein genes in Plasmodium malariae from three Asian countries. AB - BACKGROUND: Genetic diversity of the three important antigenic proteins, namely thrombospondin-related anonymous protein (TRAP), apical membrane antigen 1 (AMA1), and 6-cysteine protein (P48/45), all of which are found in various developmental stages of Plasmodium parasites is crucial for targeted vaccine development. While studies related to the genetic diversity of these proteins are available for Plasmodium falciparum and Plasmodium vivax, barely enough information exists regarding Plasmodium malariae. The present study aims to demonstrate the genetic variations existing among these three genes in P. malariae by analysing their diversity at nucleotide and protein levels. METHODS: Three surface protein genes were isolated from 45 samples collected in Thailand (N = 33), Myanmar (N = 8), and Lao PDR (N = 4), using conventional polymerase chain reaction (PCR) assay. Then, the PCR products were sequenced and analysed using BioEdit, MEGA6, and DnaSP programs. RESULTS: The average pairwise nucleotide diversities (pi) of P. malariae trap, ama1, and p48/45 were 0.00169, 0.00413, and 0.00029, respectively. The haplotype diversities (Hd) of P. malariae trap, ama1, and p48/45 were 0.919, 0.946, and 0.130, respectively. Most of the nucleotide substitutions were non-synonymous, which indicated that the genetic variations of these genes were maintained by positive diversifying selection, thus, suggesting their role as a potential target of protective immune response. Amino acid substitutions of P. malariae TRAP, AMA1, and P48/45 could be categorized to 17, 20, and 2 unique amino-acid variants, respectively. For further vaccine development, carboxyl terminal of P48/45 would be a good candidate according to conserved amino acid at low genetic diversity (pi = 0.2 0.3). CONCLUSIONS: High mutational diversity was observed in P. malariae trap and ama1 as compared to p48/45 in P. malariae samples isolated from Thailand, Myanmar, and Lao PDR. Taken together, these results suggest that P48/45 might be a good vaccine candidate against P. malariae infection because of its sufficiently low genetic diversity and highly conserved amino acids especially on the carboxyl end. PMID- 29325577 TI - Dynamic kinematics of the glenohumeral joint in shoulders with rotator cuff tears. AB - BACKGROUND: No clear trend has emerged from the literature regarding three dimensional (3D) translations of the humerus relative to the scapula in shoulders with rotator cuff tears (RCTs). The purpose of this study was to evaluate the kinematics of RCT shoulders using 3D-to-two-dimensional (2D) model-to-image registration techniques. METHODS: Dynamic glenohumeral kinematics during scapular plane abduction and axial rotation were analyzed in 11 RCT patients and 10 healthy control subjects. We measured the 3D kinematic parameters of glenohumeral joints using X-ray images and CT-derived digitally reconstructed radiographs. RESULTS: For scapular plane abduction, the humeral head center was positioned significantly more medially in shoulders with RCTs than in controls at 135 degrees of humeral abduction (p = 0.02; RCTs versus controls: - 0.9 +/- 1.6 versus 0.3 +/- 1.3 mm). There was no significant difference in the superior/inferior translation of the humeral head center (p = 0.99). For axial rotation in adducted position, the humeral head center was positioned significantly more anteriorly in shoulders with RCTs than in controls at - 30 degrees of glenohumeral external rotation (p < 0.0001; RCTs versus controls: 3.0 +/- 1.7 versus 0.3 +/- 1.5 mm). CONCLUSIONS: This study revealed the kinematics of shoulders with large to massive full-thickness RCTs: the humeral head center showed a medial shift at the late phase of scapular plane full abduction, and an anterior shift at the internal rotation position during full axial rotation. The kinematic data in this study, which describe the patterns of movement of shoulders with large to massive full-thickness RCTs, provide valuable information for future studies investigating glenohumeral translations in other pathological conditions of the shoulder. For clinical relevance, quantitative assessment of the dynamic kinematics of shoulders with RCTs might be a therapeutic indicator for achieving functional restoration. PMID- 29325578 TI - Effects of a peer-led Walking In ScHools intervention (the WISH study) on physical activity levels of adolescent girls: a cluster randomised pilot study. AB - BACKGROUND: School-based interventions may be effective at increasing levels of physical activity (PA) among adolescents; however, there is a paucity of evidence on whether walking can be successfully promoted to increase PA in this age group. This pilot study aimed to assess the effects of a 12-week school-based peer-led brisk walking programme on levels of school-time PA post intervention. METHODS: Female participants, aged 11-13 years, were recruited from six post-primary schools in Northern Ireland. Participants were randomized by school (cluster) to participate in regular 10-15-min peer-led brisk walks throughout the school week (the WISH study) (n = 101, two schools) or to continue with their usual PA (n = 98, four schools). The primary outcome measure was school-time PA post intervention (week 12), assessed objectively using an Actigraph accelerometer. Secondary outcome measures included anthropometry, cardiorespiratory fitness and psychosocial measures. Changes in PA data between baseline (T0) and end of intervention (week 12) (T1) were analysed using a mixed between-within subjects analysis of variance with one between (group) and one within (time) subjects factor, with two levels. RESULTS: Of 199 participants recruited (mean age = 12.4 +/- 0.6 years, 27% overweight/obese), 187 had valid accelerometer data for inclusion in subsequent analysis. A significant interaction effect was observed for changes in light intensity PA across the school day (p = 0.003), with those in the intervention increasing their light intensity PA by 8.27 mins/day compared with a decrease of 2.14 mins/day in the control group. No significant interactions were observed for the other PA measures across the intervention. Intervention effects on school-time PA were not sustained four months post intervention. CONCLUSIONS: The intervention increased daily light intensity PA behaviour in these adolescent girls but did not change moderate to vigorous physical activity (MVPA). These findings suggest that a school-based brisk walking intervention may be feasible and can change PA behaviour in the short term, but it is possible that the self-selected walking speeds determined by a peer-leader may not be sufficient to reach MVPA in this age group. Further research is needed to evaluate the potential of school-based brisk walking to contribute to MVPA in adolescent girls. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02871830 . Registered on 16 August 2016). PMID- 29325579 TI - The return of the Iberian lynx to Portugal: local voices. AB - BACKGROUND: Ethnographic research can help to establish dialog between conservationists and local people in reintroduction areas. Considering that predator reintroductions may cause local resistance, we assessed attitudes of different key actor profiles to the return of the Iberian lynx (Lynx pardinus) to Portugal before reintroduction started in 2015. We aimed to characterize a social context from an ethnoecological perspective, including factors such as local knowledge, perceptions, emotions, and opinions. METHODS: We conducted semi structured interviews (n = 131) in three different protected areas and observed practices and public meetings in order to describe reintroduction contestation, emotional involvement with the species, and local perceptions about conservation. Detailed content data analysis was undertaken and an open-ended codification of citations was performed with the support of ATLAS.ti. Besides the qualitative analyses, we further explored statistic associations between knowledge and opinions and compared different geographical areas and hunters with non-hunters among key actors. RESULTS: Local ecological knowledge encompassed the lynx but was not shared by the whole community. Both similarities and differences between local and scientific knowledge about the lynx were found. The discrepancies with scientific findings were not necessarily a predictor of negative attitudes towards reintroduction. Contestation issues around reintroduction differ between geographical areas but did not hinder an emotional attachment to the species and its identification as a territory emblem. Among local voices, financial compensation was significantly associated to hunters and nature tourism was cited the most frequent advantage of lynx presence. Materialistic discourses existed in parallel with non-economic factors and the existence of moral agreement with its protection. The considerable criticism and reference to restrictions by local actors concerning protected areas and conservation projects indicated the experience of an imposed model of nature conservation. Opinions about participation in the reintroduction process highlighted the need for a closer dialog between all actors and administration. CONCLUSIONS: Local voices analyzed through an ethnoecological perspective provide several views on reintroduction and nature conservation. They follow two main global trends of environmental discourse: (1) nature becomes a commodified object to exploit while contestation about wildlife is centered on financial return and (2) emblematic wild species create an emotional attachment, become symbolic, and gather moral agreement for nature protection. Lynx reintroduction has been not only just a nature protection theme but also a negotiation process with administration. Western rural communities are not the "noble savages" and nature protectors as are other traditional groups, and actors tend to claim for benefits in a situation of reintroduction. Both parties comprehend a similar version of appropriated nature. Understanding complexity and diverse interests in local communities are useful in not oversimplifying local positions towards predator conservation. We recommend that professional conservation teams rethink their image among local populations and increase proximity with different types of key actors. PMID- 29325580 TI - The predictive prognostic factors for polymyositis/dermatomyositis-associated interstitial lung disease. AB - BACKGROUND: Interstitial lung disease (ILD) is the principal cause of death in polymyositis/dermatomyositis (PM/DM). Here we investigated prognostic factors for death and serious infection in PM/DM-ILD using the multicenter database. METHODS: We retrospectively reviewed baseline demographic, clinical and laboratory findings, treatment regimens and outcomes in patients with PM/DM-ILD. The distribution of ILD lesions was evaluated in four divided lung zones of high resolution computed tomography images. RESULTS: Of 116 patients with PM/DM-ILD, 14 died within 6 months from the diagnosis. As independent risk factors for early death, extended ILD lesions in upper lung fields (odds ratio (OR) 8.01, p = 0.016) and hypocapnia (OR 6.85, p = 0.038) were identified. Serious infection was found in 38 patients, including 11 patients who died of respiratory or multiple infections. The independent risk factors were high serum KL-6 (OR 3.68, p = 0.027), high initial dose of prednisolone (PSL) (OR 4.18, p = 0.013), and combination immunosuppressive therapies (OR 5.51, p < 0.001). CONCLUSION: The present study shows the progression of ILD at baseline is the most critical for survival and that infection, especially respiratory infection, is an additive prognostic factor under the potent immunosuppressive treatment. PMID- 29325582 TI - Urinary angiostatin, CXCL4 and VCAM-1 as biomarkers of lupus nephritis. AB - BACKGROUND: The aim was to study urinary angiostatin, CXC chemokine ligand 4 (CXCL4) and vascular cell adhesion molecule-1 (VCAM-1) as biomarkers of renal disease in systemic lupus erythematosus (SLE). METHOD: Patients who fulfilled >= 4 American College of Rheumatology (ACR) criteria for SLE with active renal, active non-renal or inactive disease, and a group of healthy controls were studied. Urine samples were assayed for angiostatin, CXCL4 and VCAM-1 by ELISA, and normalized by creatinine. Receiver operating characteristic analysis was performed to obtain the best cutoff values to calculate the performance of these markers in differentiating the different groups of patients as compared to anti double-stranded DNA (anti-dsDNA) and complement C3. Correlation between these urinary biomarkers and various renal parameters was also tested. RESULTS: Patients with SLE (n = 227; 80 with inactive SLE, 67 with active non-renal disease and 80 with active renal disease; 94% women; age 39.2 +/- 13.8 years) and 53 controls (96% women) were studied. All were ethnic Chinese. Urinary angiostatin, CXCL4 and VCAM-1 (normalized for creatinine) were significantly higher in patients with active renal disease than in patients with active non renal disease, patients with inactive SLE and controls. These markers correlated significantly with total SLE disease activity index (SLEDAI) and renal SLEDAI scores, and with the urinary protein-to-creatinine ratio. Urine angiostatin exhibited higher specificity and sensitivity in differentiating active renal from active non-renal SLE (area under the curve (AUC) 0.87) than serum anti-dsDNA/C3. Urine CXCL4 (AUC 0.64) and VCAM-1 (AUC 0.73), on the other hand, performed similarly to anti-dsDNA/C3. All three markers performed comparably to anti dsDNA/C3 in distinguishing active from inactive SLE. In a subgroup of 68 patients with paired renal biopsy, the urinary levels of these proteins did not differ significantly between the proliferative and non-proliferative types of lupus nephritis. Urinary CXCL4 and VCAM-1 correlated significantly with the histologic activity score, and urinary angiostatin correlated significantly with proteinuria in this subgroup. CONCLUSIONS: Urinary angiostatin, CXCL4 and VCAM-1 are potential biomarkers for SLE, in particular lupus nephritis. Further longitudinal studies are necessary to delineate the performance of these markers in predicting renal flares and prognosis in SLE patients. PMID- 29325581 TI - Haemophilus is overrepresented in the nasopharynx of infants hospitalized with RSV infection and associated with increased viral load and enhanced mucosal CXCL8 responses. AB - BACKGROUND: While almost all infants are infected with respiratory syncytial virus (RSV) before the age of 2 years, only a small percentage develops severe disease. Previous studies suggest that the nasopharyngeal microbiome affects disease development. We therefore studied the effect of the nasopharyngeal microbiome on viral load and mucosal cytokine responses, two important factors influencing the pathophysiology of RSV disease. To determine the relation between (i) the microbiome of the upper respiratory tract, (ii) viral load, and (iii) host mucosal inflammation during an RSV infection, nasopharyngeal microbiota profiles of RSV infected infants (< 6 months) with different levels of disease severity and age-matched healthy controls were determined by 16S rRNA marker gene sequencing. The viral load was measured using qPCR. Nasopharyngeal CCL5, CXCL10, MMP9, IL6, and CXCL8 levels were determined with ELISA. RESULTS: Viral load in nasopharyngeal aspirates of patients associates significantly to total nasopharyngeal microbiota composition. Healthy infants (n = 21) and RSV patients (n = 54) display very distinct microbial patterns, primarily characterized by a loss in commensals like Veillonella and overrepresentation of opportunistic organisms like Haemophilus and Achromobacter in RSV-infected individuals. Furthermore, nasopharyngeal microbiota profiles are significantly different based on CXCL8 levels. CXCL8 is a chemokine that was previously found to be indicative for disease severity and for which we find Haemophilus abundance as the strongest predictor for CXCL8 levels. CONCLUSIONS: The nasopharyngeal microbiota in young infants with RSV infection is marked by an overrepresentation of the genus Haemophilus. We present that this bacterium is associated with viral load and mucosal CXCL8 responses, both which are involved in RSV disease pathogenesis. PMID- 29325584 TI - Adenomatoid tumor of the testis mimicking malignant testicular cancer on multiparametric ultrasound. AB - BACKGROUND: Adenomatoid tumor is one of the most common histological subtypes of paratesticular cancer arising from the epididymis. In very rare cases, these tumors appear as intratesticular lesions originating in the tunica albuginea, representing a diagnostic challenge. CASE PRESENTATION: We present a case of a 51 year-old man with a small (0.9 cm) hyperechoic lesion of the left testicle mimicking testicular cancer on multiparametric ultrasound. The lesion was localized in the peripheral zone, confirming vascularization and increased stiffness on contrast-enhanced ultrasound and real-time elastography. Preoperative tumor markers and hormone levels were within normal ranges. Staging computed tomography was negative. Organ-sparing surgery with tumor enucleation and frozen section analysis was performed, confirming testicular adenomatoid tumor. CONCLUSION: Currently, no typical ultrasound features can definitively distinguish intratesticular adenomatoid tumors from malignant testicular masses. Thus, a surgical approach is almost always considered in such a case for both diagnostic and therapeutic purposes. PMID- 29325583 TI - An integrated-delivery-of-care approach to improve patient reported physical function and mental wellbeing after orthopedic trauma: study protocol for a randomized controlled trial. AB - BACKGROUND: Orthopedic trauma injury impacts nearly 2.8 million people each year. Despite surgical improvements and excellent survivorship rates, many patients experience poor quality of life (QOL) outcomes years later. Psychological distress commonly occurs after injury. Distressed patients more frequently experience rehospitalizations, pain medication dependence, and low QOL. This study was developed to test whether an integrative care approach (IntCare; ten step program of emotional support, education, customized resources, and medical care) was superior to usual care (UsCare). The primary aim was to assess patient functional QOL (objective and patient-reported outcomes) with secondary objectives encompassing emotional wellbeing and hospital outcomes. The primary outcome was the Lower Extremity Gain Scale score. METHODS/DESIGN: A single blinded, single-center, repeated measures, randomized controlled study is being conducted with 112 orthopedic trauma patients aged 18-85 years. Patients randomized to the IntCare group have completed or are receiving a guided ten-step support program during acute care and at follow-up outpatient visits. The UsCare group is being provided the standard of care. Patient-reported outcomes and objective functional measures are collected at the hospital and at weeks 2, 6, and 12 and months 6 and 12 post surgery. The main study outcomes are changes in Patient-Reported Outcomes Measurement Information System (PROMIS) questionnaires of Physical Function quality of life, Satisfaction with Social Roles, and Positive-Illness Impact, Post-Traumatic Stress Disorder Check List, and the Tampa Scale of Kinesiophobia-11 from baseline to month 12. Secondary outcomes are changes in objective functional measures of the Lower Extremity Gain Scale, handgrip strength, and range of motion of major joints from week 2 to month 12 post surgery. Clinical outcomes include hospital length of stay, medical complications, rehospitalizations, psychological measures, and use of pain medications. A mixed model repeated measures approach assesses the main effects of treatment and time on outcomes, as well as their interaction (treatment * time). DISCUSSION: The results from this study will help determine whether an integrative care approach during recovery from traumatic orthopedic injury can improve the patient perceptions of physical function and emotional wellbeing compared to usual trauma care. Additionally, this study will assess the ability to reduce the incidence or severity of psychological distress and mitigate medical complications, readmissions, and reduction of QOL after injury. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02591472 . Registered on 28 October 2015. PMID- 29325585 TI - Clinical research ethics review process in Lebanon: efficiency and functions of research ethics committees - results from a descriptive questionnaire-based study. AB - BACKGROUND: Clinical trials conducted in Lebanon are increasing. However, little is known about the performance of research ethics committees (RECs) in charge of reviewing the research protocols. This study aimed to assess the level of adherence to the ethics surrounding the conduct of clinical trials and perceptions of team members regarding roles of the RECs during the conduct of clinical trials in Lebanon. The research question was: Are RECs adherent to the ethics surrounding the conduct of clinical trials (chapters II and IV in 'Standards and Operational Guidance for Ethics Review of Health-related Research with Human Participants' in Lebanon?' METHODS: This was a quantitative and descriptive questionnaire-based study conducted among RECs of university hospitals in Lebanon. The questionnaire had to be completed online and included general questions in addition to items reflecting the different aspects of a REC performance and effectiveness. All the questionnaire was assigned a total score of 175 points. General information and questions assigned point values/scores were analysed using descriptive statistics: frequency and percentage, mean score +/- standard deviation. RESULTS: Ten RECs participated in the study (52 persons: four chairs, one vice-president, 47 ordinary members). Forty-seven (90.4%) had previous experience with clinical research and 30 (57.7%) had a diploma or had done a training in research ethics. Forty-one percent confirmed that they were required to have a training in research ethics. All RECs had a policy for disclosing and managing potential conflicts of interest for its members, but 71.8% of participants reported the existence of such a policy for researchers. Thirty-three point three percent reported that the RECs had an anti-bribery policy. The questionnaire mean score was 129.6 +/- 22.3/175 points reflecting thus an excellent adherence to international standards. CONCLUSION: Inadequate training of REC members and the lack of anti-bribery policies should be resolved to improve their performance. PMID- 29325587 TI - Human echinostomiasis: a case report. AB - BACKGROUND: Echinostomiasis is a food-borne infection caused by an intestinal trematodes belonging to the family Echinostomatidae. They infect the gastrointestinal tract of humans. Patients are usually asymptomatic. However, with heavy infections, the worms can produce catarrhal inflammation with mild ulceration and the patient may experience abdominal pain, anorexia, nausea, vomiting, diarrhea and weight loss. Infection are associated with common sociocultural practices of eating raw or insufficiently cooked mollusks and fish. CASE PRESENTATION: We report a first case of echinostomiasis from Nepal in a 62 years old, hindu male who presented to Tribhuvan University Teaching Hospital, Kathmandu with a complaint of abdominal pain and distension with vomiting on and off for 3-4 months. He had history of consumption of insufficiently cooked fish and snail with alcohol. During endoscopy, an adult flat worm was seen with mild portal hypertensive gastropathy (McCormack's classification) and erosive duodenopathy. The adult worm was identified as Echinostoma species based on its morphology and characteristic ova found on stool routine microscopic examination of the patient. Patient was treated with praziquantel 40 mg/kg (single dose) which is the drug of choice for Echinostoma species infection by which he got improved and on follow up stool examination after 2 weeks revealed no ova of Echinostoma species. CONCLUSIONS: The patients having history of consumption of insufficiently cooked snail and fish with suggestive clinical features of echinostomiasis should be suspected by physicians and ova of Echinostoma species should be searched by trained microscopists. An epidemiological survey is required to know the exact burden of Echinostoma species infection in the place where people have habit of eating insufficiently cooked fish and snails, as it can be endemic in that community or geographical area. PMID- 29325586 TI - High frequency percussive ventilation increases alveolar recruitment in early acute respiratory distress syndrome: an experimental, physiological and CT scan study. AB - BACKGROUND: High frequency percussive ventilation (HFPV) combines diffusive (high frequency mini-bursts) and convective ventilation patterns. Benefits include enhanced oxygenation and hemodynamics, and alveolar recruitment, while providing hypothetic lung-protective ventilation. No study has investigated HFPV-induced changes in lung aeration in patients with early acute respiratory distress syndrome (ARDS). METHODS: Eight patients with early non-focal ARDS were enrolled and five swine with early non-focal ARDS were studied in prospective computed tomography (CT) scan and animal studies, in a university-hospital tertiary ICU and an animal laboratory. Patients were optimized under conventional "open-lung" ventilation. Lung CT was performed using an end-expiratory hold (Conv) to assess lung morphology. HFPV was applied for 1 hour to all patients before new CT scans were performed with end-expiratory (HFPV EE) and end-inspiratory (HFPV EI) holds. Lung volumes were determined after software analysis. At specified time points, blood gases and hemodynamic data were collected. Recruitment was defined as a change in non-aerated lung volumes between Conv, HFPV EE and HFPV EI. The main objective was to verify whether HFPV increases alveolar recruitment without lung hyperinflation. Correlation between pleural, upper airways and HFPV-derived pressures was assessed in an ARDS swine-based model. RESULTS: One-hour HFPV significantly improved oxygenation and hemodynamics. Lung recruitment significantly rose by 12.0% (8.5-18.0%), P = 0.05 (Conv-HFPV EE) and 12.5% (9.3 16.8%), P = 0.003 (Conv-HFPV EI). Hyperinflation tended to increase by 2.0% (0.5 2.5%), P = 0.89 (Conv-HFPV EE) and 3.0% (2.5-4.0%), P = 0.27 (Conv-HFPV EI). HFPV hyperinflation correlated with hyperinflated and normally-aerated lung volumes at baseline: r = 0.79, P = 0.05 and r = 0.79, P = 0.05, respectively (Conv-HFPV EE); and only hyperinflated lung volumes at baseline: r = 0.88, P = 0.01 (Conv-HFPV EI). HFPV CT-determined tidal volumes reached 5.7 (1.1-8.1) mL.kg-1 of ideal body weight (IBW). Correlations between pleural and HFPV-monitored pressures were acceptable and end-inspiratory pleural pressures remained below 25cmH20. CONCLUSIONS: HFPV improves alveolar recruitment, gas exchanges and hemodynamics of patients with early non-focal ARDS without relevant hyperinflation. HFPV derived pressures correlate with corresponding pleural or upper airways pressures. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02510105 . Registered on 1 June 2015. The trial was retrospectively registered. PMID- 29325588 TI - Milk-flow data collected routinely in an automatic milking system: an alternative to milking-time testing in the management of teat-end condition? AB - BACKGROUND: Having a poor teat-end condition is associated with increased mastitis risk, hence avoiding milking machine settings that have a negative effect on teat-end condition is important for successful dairy production. Milking-time testing (MTT) can be used in the evaluation of vacuum conditions during milking, but the method is less suited for herds using automatic milking systems (AMS) and relationships with teat end condition is poorly described. This study aimed to increase knowledge on interpretation of MTT in AMS and to assess whether milk-flow data obtained routinely by an AMS can be useful for the management of teat-end health. A cross-sectional study, including 251 teats of 79 Norwegian Red cows milked by AMS was performed in the research herd of the Norwegian University of Life Sciences. The following MTT variables were obtained at teat level: Average vacuum level in the short milk tube during main milking (MTVAC), average vacuum in the mouthpiece chamber during main milking and overmilking, teat compression intensity (COMPR) and overmilking time. Average and peak milk flow rates were obtained at quarter level from the AMS software. Teat end callosity thickness and roughness was registered, and teat dimensions; length, and width at apex and base, were measured. Interrelationships among variables obtained by MTT, quarter milk flow variables, and teat dimensions were described. Associations between these variables and teat-end callosity thickness and roughness, were investigated. RESULTS: Principal component analysis showed clusters of strongly related variables. There was a strong negative relationship between MTVAC and average milk flow rate. The variables MTVAC, COMPR and average and peak milk flow rate were associated with both thickness and roughness of the callosity ring. CONCLUSIONS: Quarter milk flow rate obtained directly from the AMS software was useful in assessing associations between milking machine function and teat-end condition; low average milk flow rates were associated with a higher likelihood of the teat having a thickened or roughened teat-end callosity ring. Since information on milk flow rate is readily available from the herd management system, this information might be used when evaluating causes for impaired teat-end condition in AMS. PMID- 29325589 TI - Catastrophic total costs in tuberculosis-affected households and their determinants since Indonesia's implementation of universal health coverage. AB - BACKGROUND: As well as imposing an economic burden on affected households, the high costs related to tuberculosis (TB) can create access and adherence barriers. This highlights the particular urgency of achieving one of the End TB Strategy's targets: that no TB-affected households have to face catastrophic costs by 2020. In Indonesia, as elsewhere, there is also an emerging need to provide social protection by implementing universal health coverage (UHC). We therefore assessed the incidence of catastrophic total costs due to TB, and their determinants since the implementation of UHC. METHODS: We interviewed adult TB and multidrug resistant TB (MDR-TB) patients in urban, suburban and rural areas of Indonesia who had been treated for at least one month or had finished treatment no more than one month earlier. Following the WHO recommendation, we assessed the incidence of catastrophic total costs due to TB. We also analyzed the sensitivity of incidence relative to several thresholds, and measured differences between poor and non-poor households in the incidence of catastrophic costs. Generalized linear mixed-model analysis was used to identify determinants of the catastrophic total costs. RESULTS: We analyzed 282 TB and 64 MDR-TB patients. For TB-related services, the median (interquartile range) of total costs incurred by households was 133 USD (55-576); for MDR-TB-related services, it was 2804 USD (1008-4325). The incidence of catastrophic total costs in all TB-affected households was 36% (43% in poor households and 25% in non-poor households). For MDR-TB-affected households, the incidence was 83% (83% and 83%). In TB-affected households, the determinants of catastrophic total costs were poor households (adjusted odds ratio [aOR] = 3.7, 95% confidence interval [CI]: 1.7-7.8); being a breadwinner (aOR = 2.9, 95% CI: 1.3-6.6); job loss (aOR = 21.2; 95% CI: 8.3-53.9); and previous TB treatment (aOR = 2.9; 95% CI: 1.4-6.1). In MDR-TB-affected households, having an income-earning job before diagnosis was the only determinant of catastrophic total costs (aOR = 8.7; 95% CI: 1.8-41.7). CONCLUSIONS: Despite the implementation of UHC, TB-affected households still risk catastrophic total costs and further impoverishment. As well as ensuring access to healthcare, a cost-mitigation policy and additional financial protection should be provided to protect the poor and relieve income losses. PMID- 29325591 TI - Correction to: Rp58 and p27kip1 coordinate cell cycle exit and neuronal migration within the embryonic mouse cerebral cortex. AB - CORRECTION: After publication of the original article [1] it was realised that there were errors in figures 2a,b,f,g, which arose as a result of preparing figures from data collected and analysed at the same time as the work reported in [2] (Supplementary Figure 1 of [2]). An updated Fig. 2 is included with this Correction. PMID- 29325590 TI - Dynamic changes in 18F-borono-L-phenylalanine uptake in unresectable, advanced, or recurrent squamous cell carcinoma of the head and neck and malignant melanoma during boron neutron capture therapy patient selection. AB - BACKGROUND: We evaluated dynamic changes in 18F-borono-L-phenylalanine (18F-BPA) uptake in unresectable, advanced, or recurrent squamous cell carcinoma of the head and neck (SCC) and malignant melanoma (MM) during boron neutron capture therapy (BNCT) patient selection. METHODS: Dynamic changes in the maximum standardized uptake value (SUVmax), tumor-to-normal tissue ratio (TNR), and tumor to-blood pool ratio (TBR) for 18F-BPA were evaluated in 20 patients with SCC and 8 patients with MM. RESULTS: SUVmax in SCC tumors decreased significantly from 30 to 120 min. There was a non-statistically significant decrease in SUVmax for SCC tumors from 30 to 60 min and from 60 to 120 min. Patients with MM had nonsignificant SUVmax changes in 18F-BPA uptake on delayed imaging. Nonsignificant 18F-BPA TNR and TBR changes were seen in patients with SCC and MM. CONCLUSIONS: Dynamic changes in SUVmax for 18F-BPA uptake had a washout pattern in SCC and a persistent pattern in MM. Dynamic 18F-BPA -PET studies should be performed to investigate the pharmacokinetics of 18F-BPA in humans and select appropriate candidates who may benefit from BNCT. PMID- 29325593 TI - Evaluating the long-term impact of the Fostering Changes training programme for foster carers in Wales, the Confidence in Care trial: study protocol for a randomised controlled trial. AB - BACKGROUND: The Fostering Changes programme was developed by the Adoption and Fostering National Team at the Maudsley Hospital, South London, in conjunction with King's College London. It is a 12-week group-based training programme for foster and kin carers, which aims to build positive relationships between carers and children, encourage positive child behaviour and set appropriate limits, through a practical skills-based approach. The programme also aims to improve foster carers' understanding of the causes of children's social and emotional difficulties and their confidence in applying this knowledge in various situations. METHODS: This is a pragmatic open-label individually randomised controlled trial, with embedded process evaluation. A total of 237 participants will be recruited from Welsh Local Authorities and Independent Fostering Providers; those allocated to the intervention group will be offered enrolment in the next Fostering Changes programme group at their site. Participants in the control group will be offered the Fostering Changes programme at the end of the follow-up period. Data will be collected at baseline, immediately following the 12 week Fostering Changes intervention, and 12 months from the start of the Fostering Changes programme. The primary outcome measure assesses the extent to which carers feel able to cope with and make positive changes to the lives of their foster children and is measured by the Carer Efficacy Questionnaire at 12 months. DISCUSSION: The trial will determine whether the Fostering Changes programme, in the long term, can deliver important, significant differences to the way foster carers build positive relationships with their foster children, encourage positive child behaviour and set appropriate limits, compared with usual care. TRIAL REGISTRATION: International Standard Randomised Controlled Trial Number, ISRCTN19090228 . Registered on 11 January 2017. PMID- 29325592 TI - MAGnesium sulphate for fetal neuroprotection to prevent Cerebral Palsy (MAG-CP) implementation of a national guideline in Canada. AB - BACKGROUND: Evidence supports magnesium sulphate (MgSO4) for women at risk of imminent birth at < 32-34 weeks to reduce the likelihood of cerebral palsy in the child. MAGnesium sulphate for fetal neuroprotection to prevent Cerebral Palsy (MAG-CP) was a multifaceted knowledge translation (KT) strategy for this practice. METHODS: The KT strategy included national clinical practice guidelines, a national online e-learning module and, at MAG-CP sites, educational rounds, focus group discussions and surveys of barriers and facilitators. Participating sites contributed data on pregnancies with threatened very preterm birth. In an interrupted time-series study design, MgSO4 use for fetal neuroprotection (NP) was tracked prior to (Aug 2005-May 2011) and during (Jun 2011-Sept 2015) the KT intervention. Effectiveness of the strategy was measured by optimal MgSO4 use (i.e. administration when and only when indicated) over time, evaluated by a segmented generalised estimating equations logistic regression (p < 0.05 significant). Secondary outcomes included maternal effects and, using the Canadian Neonatal Network (CNN) database, national trends in MgSO4 use for fetal NP and associated neonatal resuscitation. With an anticipated recruitment of 3752 mothers over 4 years at Canadian Perinatal Network sites, we anticipated > 95% power to detect an increase in optimal MgSO4 use for fetal NP from < 5 to 80% (2-sided, alpha 0.05) and at least 80% power to detect any increases observed in maternal side effects from RCTs. RESULTS: Seven thousand eight hundred eighty-eight women with imminent preterm birth were eligible for MgSO4 for fetal NP: 4745 pre-KT (18 centres) and 3143 during KT (11 centres). The KT intervention was associated with an 84% increase in the odds of optimal use (OR 1.00 to 1.84, p < 0.001), a reduction in the odds of underuse (OR 1.00 to 0.47, p < 0.001) and an increase in suboptimal use (too early or at >= 32 weeks; OR 1.18 to 2.18, p < 0.001) of MgSO4 for fetal NP. Maternal hypotension was uncommon (7/1512, 0.5%). Nationally, intensive neonatal resuscitation decreased (p = 0.024) despite rising MgSO4 use for fetal NP (p < 0.001). CONCLUSION: Multifaceted KT was associated with significant increases in use of MgSO4 for fetal NP, with neither important maternal nor neonatal risks. PMID- 29325594 TI - Treatment of persistent allergic rhinitis via acupuncture at the sphenopalatine acupoint: a randomized controlled trial. AB - BACKGROUND: Allergic rhinitis is a common respiratory disease. Acupuncture is used to treat it in traditional Chinese medicine, and generally, the L120, ST2 and ST36 acupoints are selected in clinical practice. We report a new method of acupuncture at the sphenopalatine acupoint (SPA) for treatment of persistent allergic rhinitis (PAR). The effect of this treatment was investigated using two different needling depths. The efficacy of this treatment was associated with accurate stimulation of the sphenopalatine ganglion (SPG). METHODS/DESIGN: A total of 61 patients diagnosed with PAR were randomly allocated to either the acupuncture or the sham acupuncture group. The difference between the groups was the needle depth when acupuncture was administered, which was 50 mm and 20 mm. Alteration in total nasal symptom score (TNSS) was the primary outcome. Quality of life, medication dosages and adverse events were secondary outcomes, measured using the Rhinoconjunctivitis Quality of Life Questionnaire (RQLQ). Confidence assessment was performed to evaluate data from the treatment and follow-up periods. RESULTS: Results were: (1) average TNSS in the treatment group was significantly lower than in the control group at week 4 (median and 25th and 75th percentiles were 5.00 (4.00, 7.00) and 8.00 (7.00, 10.00), respectively (P < 0.001)). However, scores in the two groups were not significantly different at week 12; (2) quality of life (RQLQ) was significantly improved at week 2 in the treatment group compared to the control group (scores of 35.47 +/- 8.20 and 45.48 +/- 8.84; P < 0.001); (3) during the follow-up period, the medication dosage in the treatment group was much lower than in the control group (3.64 +/- 1.45 and 6.14 +/- 2.34; P < 0.05); and (4) no adverse events were observed in either group during treatment. CONCLUSIONS: This pilot study revealed a profound effect of acupuncture at the SPA on prevention of PAR development. The TNSS in the treatment group (needle depth 50 mm), was significantly lower than in the control group (needle depth of only 20 mm). Our result demonstrates that performing acupuncture directly at the SPA to stimulate the SPG is an effective method to treat PAR. TRIAL REGISTRATION: Acupuncture Clinical Trial Registry, AMCTR-OOR 16000014 and Chinese Clinical Trial Register, ChiCTR-IOR-16009211 . Registered on 1 September 1 2016. PMID- 29325595 TI - Mortality impact of an increased blood glucose cut-off level for hypoglycaemia treatment in severely sick children in Malawi (SugarFACT trial): study protocol for a randomised controlled trial. AB - BACKGROUND: Mortality in children remains high in sub-Saharan African hospitals. While antimalarial drugs, antibiotics and other definitive treatments are well understood, the role of emergency care with supportive therapies, such as maintaining normal glucose and electrolyte balances, has been given limited attention. Hypoglycaemia is common in children admitted to hospital in low-income settings. The current definition of hypoglycaemia is a blood glucose level < 2.5 mmol/L in a well-nourished child. Outcomes for these children are poor, with a mortality rate of up to 42%. An increased mortality has also been reported among acutely ill children with low-glycaemia, defined as a blood glucose level of 2.5 5.0 mmol/L. The reason for increased mortality rates is not fully understood. This proposal is for a randomised controlled trial to determine the impact on mortality of a raised treatment cut-off level for paediatric hypoglycaemia. METHODS: A total of 1266 severely ill children (age range = 1 month - 5 years) admitted to Queen Elizabeth Central Hospital in Blantyre, Malawi with blood glucose in the range of 2.5-5.0 mmol/L will be randomised into intervention or control groups. The intervention group will be treated with an intravenous bolus of 10% dextrose 5 mL/kg followed by a dextrose infusion in addition to standard care while the control group will receive standard care only. Children will be followed until discharge from hospital or death. DISCUSSION: The first patient was enrolled in December 2016 and the expected trial deadline is January 2019. This study is the first to evaluate the benefits of increased dextrose administration in children presenting to hospital with low-glycaemia. The findings will inform national and international policies and guidelines for the management of children with blood sugar abnormalities. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02989675 . Registered on 5 December 2016. PMID- 29325596 TI - Late normal tissue response in the rat spinal cord after carbon ion irradiation. AB - BACKGROUND: The present work summarizes the research activities on radiation induced late effects in the rat spinal cord carried out within the "clinical research group ion beam therapy" funded by the German Research Foundation (DFG, KFO 214). METHODS AND MATERIALS: Dose-response curves for the endpoint radiation induced myelopathy were determined at 6 different positions (LET 16-99 keV/MUm) within a 6 cm spread-out Bragg peak using either 1, 2 or 6 fractions of carbon ions. Based on the tolerance dose TD50 of carbon ions and photons, the relative biological effectiveness (RBE) was determined and compared with predictions of the local effect model (LEM I and IV). Within a longitudinal magnetic resonance imaging (MRI)-based study the temporal development of radiation-induced changes in the spinal cord was characterized. To test the protective potential of the ACE (angiotensin converting enzyme)-inhibitor ramiprilTM, an additional dose-response experiment was performed. RESULTS: The RBE-values increased with LET and the increase was found to be larger for smaller fractional doses. Benchmarking the RBE-values as predicted by LEM I and LEM IV with the measured data revealed that LEM IV is more accurate in the high-LET, while LEM I is more accurate in the low LET region. Characterization of the temporal development of radiation-induced changes with MRI demonstrated a shorter latency time for carbon ions, reflected on the histological level by an increased vessel perforation after carbon ion as compared to photon irradiations. For the ACE-inhibitor ramiprilTM, a mitigative rather than protective effect was found. CONCLUSIONS: This comprehensive study established a large and consistent RBE data base for late effects in the rat spinal cord after carbon ion irradiation which will be further extended in ongoing studies. Using MRI, an extensive characterization of the temporal development of radiation-induced alterations was obtained. The reduced latency time for carbon ions is expected to originate from a dynamic interaction of various complex pathological processes. A dominant observation after carbon ion irradiation was an increase in vessel perforation preferentially in the white matter. To enable a targeted pharmacological intervention more details of the molecular pathways, responsible for the development of radiation-induced myelopathy are required. PMID- 29325597 TI - Disseminated histoplasmosis in an immunocompetent patient - utility of skin scrape cytology in diagnosis: a case report. AB - BACKGROUND: Histoplasma capsulatum is a dimorphic fungus predominately found in soils enriched with bird and bat excreta. Although several cases of histoplasmosis have been reported in India, diagnosis using cytology has been done in very few cases. CASE PRESENTATION: We report here a case of disseminated histoplasmosis in a 46-year-old Indian man. CONCLUSION: Skin scrape cytology is a simple, safe, and rapid technique to establish the initial diagnosis, thus promoting early treatment and favorable outcome, in cutaneous fungal infections. PMID- 29325598 TI - Influence of peer review on the reporting of primary outcome(s) and statistical analyses of randomised trials. AB - BACKGROUND: Selective reporting of outcomes in clinical trials is a serious problem. We aimed to investigate the influence of the peer review process within biomedical journals on reporting of primary outcome(s) and statistical analyses within reports of randomised trials. METHODS: Each month, PubMed (May 2014 to April 2015) was searched to identify primary reports of randomised trials published in six high-impact general and 12 high-impact specialty journals. The corresponding author of each trial was invited to complete an online survey asking authors about changes made to their manuscript as part of the peer review process. Our main outcomes were to assess: (1) the nature and extent of changes as part of the peer review process, in relation to reporting of the primary outcome(s) and/or primary statistical analysis; (2) how often authors followed these requests; and (3) whether this was related to specific journal or trial characteristics. RESULTS: Of 893 corresponding authors who were invited to take part in the online survey 258 (29%) responded. The majority of trials were multicentre (n = 191; 74%); median sample size 325 (IQR 138 to 1010). The primary outcome was clearly defined in 92% (n = 238), of which the direction of treatment effect was statistically significant in 49%. The majority responded (1-10 Likert scale) they were satisfied with the overall handling (mean 8.6, SD 1.5) and quality of peer review (mean 8.5, SD 1.5) of their manuscript. Only 3% (n = 8) said that the editor or peer reviewers had asked them to change or clarify the trial's primary outcome. However, 27% (n = 69) reported they were asked to change or clarify the statistical analysis of the primary outcome; most had fulfilled the request, the main motivation being to improve the statistical methods (n = 38; 55%) or avoid rejection (n = 30; 44%). Overall, there was little association between authors being asked to make this change and the type of journal, intervention, significance of the primary outcome, or funding source. Thirty-six percent (n = 94) of authors had been asked to include additional analyses that had not been included in the original manuscript; in 77% (n = 72) these were not pre-specified in the protocol. Twenty-three percent (n = 60) had been asked to modify their overall conclusion, usually (n = 53; 88%) to provide a more cautious conclusion. CONCLUSION: Overall, most changes, as a result of the peer review process, resulted in improvements to the published manuscript; there was little evidence of a negative impact in terms of post hoc changes of the primary outcome. However, some suggested changes might be considered inappropriate, such as unplanned additional analyses, and should be discouraged. PMID- 29325599 TI - Are we there yet? An update on transitional care in rheumatology. AB - Significant progress has been made in the understanding of transitional care in rheumatology over the last few decades, yet universal implementation has not been realised and unmet needs continue to be reported. Possible explanations for this include lack of evidence as to which model is most effective; lack of attention to the multiple dimensions, stakeholders and systems involved in health transitions; and lack of consideration of the developmental appropriateness of transition interventions and the services/organisations/systems where such interventions are delivered.Successful transition has major implications to both the young people with juvenile-onset rheumatic disease and their families. Future research in this area will need to reflect both the multidimensional (biopsychosocial) and the multisystemic (multiple systems and stakeholders across personal/social/family support networks and health/social care/education systems). Only then will we be able to determine which aspects of transition readiness and service components influence which dimension. It is therefore imperative we continue to research and develop this area, involving both paediatric and adult rheumatology clinicians and researchers, remembering to look beyond both the condition and our discipline. Neither should we forget to tap into the exciting potential associated with digital technology to ensure further advances in transitional care are brought about in and beyond rheumatology. PMID- 29325600 TI - Clival Chordoma With Brainstem Invasion. PMID- 29325601 TI - Evaluation of ELISA and haemagglutination inhibition as screening tests in serosurveillance for H5/H7 avian influenza in commercial chicken flocks. AB - Avian influenza virus (AIV) subtypes H5 and H7 can infect poultry causing low pathogenicity (LP) AI, but these LPAIVs may mutate to highly pathogenic AIV in chickens or turkeys causing high mortality, hence H5/H7 subtypes demand statutory intervention. Serological surveillance in the European Union provides evidence of H5/H7 AIV exposure in apparently healthy poultry. To identify the most sensitive screening method as the first step in an algorithm to provide evidence of H5/H7 AIV infection, the standard approach of H5/H7 antibody testing by haemagglutination inhibition (HI) was compared with an ELISA, which detects antibodies to all subtypes. Sera (n = 1055) from 74 commercial chicken flocks were tested by both methods. A Bayesian approach served to estimate diagnostic test sensitivities and specificities, without assuming any 'gold standard'. Sensitivity and specificity of the ELISA was 97% and 99.8%, and for H5/H7 HI 43% and 99.8%, respectively, although H5/H7 HI sensitivity varied considerably between infected flocks. ELISA therefore provides superior sensitivity for the screening of chicken flocks as part of an algorithm, which subsequently utilises H5/H7 HI to identify infection by these two subtypes. With the calculated sensitivity and specificity, testing nine sera per flock is sufficient to detect a flock seroprevalence of 30% with 95% probability. PMID- 29325603 TI - Culture conditions affect Ca2+ release in artificially activated mouse and human oocytes. AB - Inconsistent fertilisation and pregnancy rates have been reported by different laboratories after application of ionomycin as a clinical method of assisted oocyte activation (AOA) to overcome fertilisation failure. Using both mouse and human oocytes, in the present study we investigated the effects of ionomycin and Ca2+ concentrations on the pattern of Ca2+ release and embryonic developmental potential. In the mouse, application of 5MUM ionomycin in potassium simplex optimisation medium (KSOM) or 10uM ionomycin in Ca2+-free KSOM significantly reduced the Ca2+ flux and resulted in failure of blastocyst formation compared with 10MUM ionomycin in KSOM. Increasing the Ca2+ concentration up to three- or sixfold did not benefit mouse embryonic developmental potential. Similarly, 10MUM ionomycin-induced rise in Ca2+ in human oocytes increased with increasing total calcium concentrations in the commercial medium. Remarkably, we observed significantly reduced mouse embryo development when performing AOA over a period of 10min in Quinn's AdvantageTM Fertilisation medium (Cooper Surgical) and IVFTM medium (Vitrolife) compared with Sydney IVF COOK cleavage medium (Cook Ireland), using the same sequential culture system from the post-activation stage to blastocyst formation stage in different AOA groups. In conclusion, concentrations of both ionomycin and Ca2+ in culture media used during AOA can have significant effects on Ca2+ release and further embryonic developmental potential. PMID- 29325604 TI - Implications of body condition and seasonality on morphological and functional parameters of testes of Myotis nigricans (Chiroptera: Vespertilionidae). AB - The insectivorous bat Myotis nigricans is widely distributed throughout the Neotropics, including Brazil, and has a reproductive biology that is affected by climate and food availability. To evaluate the reproductive capacity of this species, morphofunctional parameters of the testes were correlated with environmental variables and the body condition of individuals captured. After bats had been killed, their testes were removed, fixed in Karnovsky's fluid for 24h and embedded in resin for evaluation by light microscopy. The mean annual tubulosomatic index (0.58%) and the percentage of seminiferous tubules in the testes (88.96%) were the highest ever recorded for the Order Chiroptera. The percentage of Leydig cells and volume of the cytoplasm of Leydig cells were higher in the rainy than dry season (80.62+/-3.19% and 573.57+/-166.95MUm, respectively; mean+/-s.d.). Conversely, the percentage of nuclei of the Leydig cells in the dry season (26.17+/-3.70%; mean+/-s.d.) and the total number of Leydig cells (6.38+/-1.84*109; mean+/-s.d.) were higher in the dry season. The results of the present study could help in future conservation of these bats because they provide a better understanding of the bats' reproductive strategies and how the species can adapt to changes. PMID- 29325605 TI - Establishment of detection antibodies BRRs batch 4 for in vitro potency assay of hepatitis A vaccines by ELISA. AB - The European Pharmacopoeia (Ph. Eur.) standard ELISA method for determination of antigen content of hepatitis A vaccines (HAV) requires specific coating and detection Biological Reference Reagents (BRRs). The 3rd batch of detection antibodies BRRs was established in 2015 for use in conjunction with the Ph. Eur. general chapter 2.7.14 'Assay of hepatitis A vaccine'. Stocks of these BRRs were running low and therefore the European Directorate for the Quality of Medicines & HealthCare (EDQM) organised a collaborative study to qualify replacement batches. The candidate BRR antibodies batch 4 were prepared under appropriate conditions from starting materials similar to previous batches to ensure continuity. During the collaborative study, the new batches of antibodies were compared to previous batches of BRRs. Results confirmed that they were suitable to be used for the intended purpose, and could be used at the same final concentrations as the previous batch, i.e. 1:500 for the primary antibody and 1:400 for the conjugated secondary antibody. They were adopted in June 2017 by the Ph. Eur. Commission as Hepatitis A virus primary detection antibody BRR batch 4 and Conjugated secondary detection antibody BRR batch 4, respectively. They are available from the EDQM as Hepatitis A vaccine ELISA detection antibodies set BRR batch 4. PMID- 29325606 TI - Repeat expansion diseases. AB - More than 40 diseases, most of which primarily affect the nervous system, are caused by expansions of simple sequence repeats dispersed throughout the human genome. Expanded trinucleotide repeat diseases were discovered first and remain the most frequent. More recently tetra-, penta-, hexa-, and even dodeca nucleotide repeat expansions have been identified as the cause of human disease, including some of the most common genetic disorders seen by neurologists. Repeat expansion diseases include both causes of myotonic dystrophy (DM1 and DM2), the most common genetic cause of amyotrophic lateral sclerosis/frontotemporal dementia (C9ORF72), Huntington disease, and eight other polyglutamine disorders, including the most common forms of dominantly inherited ataxia, the most common recessive ataxia (Friedreich ataxia), and the most common heritable mental retardation (fragile X syndrome). Here I review distinctive features of this group of diseases that stem from the unusual, dynamic nature of the underlying mutations. These features include marked clinical heterogeneity and the phenomenon of clinical anticipation. I then discuss the diverse molecular mechanisms driving disease pathogenesis, which vary depending on the repeat sequence, size, and location within the disease gene, and whether the repeat is translated into protein. I conclude with a brief clinical and genetic description of individual repeat expansion diseases that are most relevant to neurologists. PMID- 29325607 TI - Genetic and genomic testing for neurologic disease in clinical practice. AB - The influence of genetics on neurologic disease is broad and it is becoming more common that clinicians are presented with a patient whose disease is likely of genetic origin. In the search for mutations causing Mendelian disorders, advances in genetic testing methodology have propelled modern neurologic practice beyond single-gene testing into the realm of genomic medicine, where routine evaluations encompass hundreds or thousands of genes, or even the entire exome, representing all protein-coding genes in the genome. The role of various single-gene, multigene, and genomic testing methods, including chromosomal microarray and next generation sequencing, in the evaluation of neurologic disease is discussed here to provide a framework for their use in a modern neurologic practice. Understanding the inherent issues that arise during the interpretation of sequence variants as pathogenic or benign and the potential discovery of incidental medically relevant findings are important considerations for neurologists utilizing these tests clinically. Strategies for the evaluation of clinically heterogeneous disorders are presented to guide neurologists in the transition from single-gene to genomic considerations and toward the prospect of the widespread routine use of exome sequencing in the continuing goal to achieve more rapid and more precise diagnoses that will improve management and outcome in patients challenged by neurologic disease. PMID- 29325602 TI - Bile Acid Metabolism in Liver Pathobiology. AB - Bile acids facilitate intestinal nutrient absorption and biliary cholesterol secretion to maintain bile acid homeostasis, which is essential for protecting liver and other tissues and cells from cholesterol and bile acid toxicity. Bile acid metabolism is tightly regulated by bile acid synthesis in the liver and bile acid biotransformation in the intestine. Bile acids are endogenous ligands that activate a complex network of nuclear receptor farnesoid X receptor and membrane G protein-coupled bile acid receptor-1 to regulate hepatic lipid and glucose metabolic homeostasis and energy metabolism. The gut-to-liver axis plays a critical role in the regulation of enterohepatic circulation of bile acids, bile acid pool size, and bile acid composition. Bile acids control gut bacteria overgrowth, and gut bacteria metabolize bile acids to regulate host metabolism. Alteration of bile acid metabolism by high-fat diets, sleep disruption, alcohol, and drugs reshapes gut microbiome and causes dysbiosis, obesity, and metabolic disorders. Gender differences in bile acid metabolism, FXR signaling, and gut microbiota have been linked to higher prevalence of fatty liver disease and hepatocellular carcinoma in males. Alteration of bile acid homeostasis contributes to cholestatic liver diseases, inflammatory diseases in the digestive system, obesity, and diabetes. Bile acid-activated receptors are potential therapeutic targets for developing drugs to treat metabolic disorders. PMID- 29325608 TI - Mitochondrial diseases. AB - Mitochondrial diseases collectively describe a diverse group of heritable disorders that invariably affect mitochondrial respiratory chain function and cellular energy production. Together they represent the most common cause of inherited metabolic disease, may present at any age, have a wide spectrum of clinical manifestations, may be insidious in onset, and potentially have high morbidity and mortality. Due to the presence of mitochondria in all nucleated cells, mitochondrial disease can affect many different tissues, with single or multiple systems being involved. This leads to highly variable presentations, making the diagnosis of mitochondrial diseases challenging. Recent advances in biomarker and genetic testing, coupled with emerging treatments and reproductive options, hold great promise for improving the clinical identification and management of this highly mutable disease group. PMID- 29325609 TI - The CAG-polyglutamine repeat diseases: a clinical, molecular, genetic, and pathophysiologic nosology. AB - Throughout the genome, unstable tandem nucleotide repeats can expand to cause a variety of neurologic disorders. Expansion of a CAG triplet repeat within a coding exon gives rise to an elongated polyglutamine (polyQ) tract in the resultant protein product, and accounts for a unique category of neurodegenerative disorders, known as the CAG-polyglutamine repeat diseases. The nine members of the CAG-polyglutamine disease family include spinal and bulbar muscular atrophy (SBMA), Huntington disease, dentatorubral pallidoluysian atrophy, and six spinocerebellar ataxias (SCA 1, 2, 3, 6, 7, and 17). All CAG polyglutamine diseases are dominantly inherited, with the exception of SBMA, which is X-linked, and many CAG-polyglutamine diseases display anticipation, which is defined as increasing disease severity in successive generations of an affected kindred. Despite widespread expression of the different polyQ-expanded disease proteins throughout the body, each CAG-polyglutamine disease strikes a particular subset of neurons, although the mechanism for this cell-type selectivity remains poorly understood. While the different genes implicated in these disorders display amino acid homology only in the repeat tract domain, certain pathologic molecular processes have been implicated in almost all of the CAG-polyglutamine repeat diseases, including protein aggregation, proteolytic cleavage, transcription dysregulation, autophagy impairment, and mitochondrial dysfunction. Here we highlight the clinical and molecular genetic features of each distinct disorder, and then discuss common themes in CAG-polyglutamine disease pathogenesis, closing with emerging advances in therapy development. PMID- 29325611 TI - Autosomal-recessive cerebellar ataxias. AB - The autosomal-recessive cerebellar ataxias comprise more than half of the known genetic forms of ataxia and represent an extensive group of clinically heterogeneous disorders that can occur at any age but whose onset is typically prior to adulthood. In addition to ataxia, patients often present with polyneuropathy and clinical symptoms outside the nervous system. The most common of these diseases is Friedreich ataxia, caused by mutation of the frataxin gene, but recent advances in genetic analysis have greatly broadened the ever-expanding number of causative genes to over 50. In this review, the clinical neurogenetics of the recessive cerebellar ataxias will be discussed, including updates on recently identified novel ataxia genes, advancements in unraveling disease specific molecular pathogenesis leading to ataxia, potential treatments under development, technologic improvements in diagnostic testing such as clinical exome sequencing, and what the future holds for clinicians and geneticists. PMID- 29325610 TI - Autosomal-dominant cerebellar ataxias. AB - Spinocerebellar ataxias (SCAs) are a genetically diverse group of dominantly inherited disorders that share clinical features that result from dysfunction and degeneration of the cerebellum and its associated pathways. Although nearly 40 genes are currently recognized to result in SCA, shared mechanisms for disease pathogenesis exist among subsets of the SCAs. The most common SCAs result from a glutamine-encoding CAG repeat in the respective disease genes. This chapter discusses the varied genetic etiology of SCA and attempts to categorize these disorders based on shared mechanisms of disease. We also summarize evaluation and management for the SCAs. PMID- 29325612 TI - Genetics of Parkinson disease. AB - An understanding of the genetic etiology of Parkinson disease (PD) has become imperative for the modern-day neurologist. Although genetic forms cause only a minority of PD, the disease mechanisms they elucidate advance the understanding of idiopathic cases. Moreover, recently identified susceptibility variants contribute to complex-etiology PD and broaden the contribution of genetics beyond familial and early-onset cases. Dominantly inherited monogenic forms mimic idiopathic PD and are caused by mutations or copy number variations of SNCA, LRRK2, and VPS35. On the other hand, early-onset forms are associated with PARKIN, PINK1, and DJ1 mutations, nominating mitochondrial dysfunction and oxidative stress as another important molecular pathway in the causation of the disease, in addition to alpha-synuclein accumulation. Common variants in GBA are consistently identified by association studies and may be considered to be a major risk gene for PD, with markedly reduced penetrance. Other genes have been proposed to be associated with PD; however, these only cause very rare forms, if at all. Current guidelines recommend testing for LRRK2 variants in familial PD or in specific populations (ancestry), and for the recessive genes in early-onset PD. However, gene panels have made testing for multiple forms of genetic PD a viable approach. PMID- 29325615 TI - Inherited dystonias: clinical features and molecular pathways. AB - Recent decades have witnessed dramatic increases in understanding of the genetics of dystonia - a movement disorder characterized by involuntary twisting and abnormal posture. Hampered by a lack of overt neuropathology, researchers are investigating isolated monogenic causes to pinpoint common molecular mechanisms in this heterogeneous disease. Evidence from imaging, cellular, and murine work implicates deficiencies in dopamine neurotransmission, transcriptional dysregulation, and selective vulnerability of distinct neuronal populations to disease mutations. Studies of genetic forms of dystonia are also illuminating the developmental dependence of disease symptoms that is typical of many forms of the disease. As understanding of monogenic forms of dystonia grows, a clearer picture will develop of the abnormal motor circuitry behind this relatively common phenomenology. This chapter focuses on the current data covering the etiology and epidemiology, clinical presentation, and pathogenesis of four monogenic forms of isolated dystonia: DYT-TOR1A, DYT-THAP1, DYT-GCH1, and DYT-GNAL. PMID- 29325616 TI - Huntington disease. AB - Huntington disease is a monogenic neurodegenerative disorder that displays an autosomal-dominant pattern of inheritance. It is characterized by motor, psychiatric, and cognitive symptoms that progress over 15-20 years. Since the identification of the causative genetic mutation in 1993 much has been discovered about the underlying pathogenic mechanisms, but as yet there are no disease modifying therapies available. This chapter reviews the epidemiology, genetic basis, pathogenesis, presentation, and clinical management of Huntington disease. The principles of genetic testing are explained. We also describe recent developments in the ongoing search for therapeutics and for biomarkers to track disease progression. PMID- 29325614 TI - Ethical issues in neurogenetics. AB - Many neurogenetic conditions are inherited and therefore diagnosis of a patient will have implications for the patient's relatives and can raise ethical issues. Predictive genetic testing offers asymptomatic relatives the opportunity to determine their risk status for a neurogenetic condition, and professional guidelines emphasize patients' autonomy and informed, voluntary decision making. Beneficence and nonmaleficence both need to be considered when making decisions about disclosure and nondisclosure of genetic information and test results. There can be disclosure concerns and challenges in determining whose autonomy to prioritize when a patient makes a genetic testing decision that can reveal the genetic status of a relative (e.g., testing an adult child when the at-risk parent has not been tested). Ethical issues are prominent when genetic testing for neurogenetic conditions is requested prenatally, on minors, adoptees, adult children at 25% risk, and for individuals with psychiatric issues or cognitive impairment. Neurogenetic conditions can result in cognitive decline which can affect decisional capacity and lead to ethical challenges with decision making, informed consent, and determining the patient's ability to comprehend test results. The ethical implications of genetic testing and emerging issues, including direct-to-consumer genetic testing, disclosure of secondary findings from genomic sequencing, and use of apolipoprotein E testing in clinical and research settings, are also discussed. Resources for information about genetic testing practice guidelines, insurance laws, and directories of genetics clinics are included. PMID- 29325613 TI - Essential tremor. AB - Essential tremor (ET) is one of the most common neurologic disorders, and genetic factors are thought to contribute significantly to disease etiology. There has been a relative lack of progress in understanding the genetic etiology of ET. This could reflect a number of factors, including the presence of substantial phenotypic and genotypic heterogeneity. Thus, a meticulous approach to phenotyping is important for genetic research. A lack of standardized phenotyping across studies and patient centers likely has contributed to the relative lack of success of genomewide association studies in ET. To dissect the genetic architecture of ET, whole-genome sequencing will likely be of value. This will allow specific hypotheses about the mode of inheritance and genetic architecture to be tested. A number of approaches still remain unexplored in ET genetics, including the contribution of copy number variants, uncommon moderate-effect alleles, rare variant large-effect alleles (including Mendelian and complex/polygenic modes of inheritance), de novo and gonadal mosaicism, epigenetic changes, and noncoding variation. PMID- 29325617 TI - Wilson disease and related copper disorders. AB - Copper is a required cofactor for enzymes in critical metabolic pathways. Mutations in copper metabolism genes or abnormalities in copper metabolism result in disease from copper excess or deficiency. Wilson disease (WD) is an autosomal recessive disease caused by mutations in the ATP7B gene which encodes a copper transporting ATPase. Over 500 different WD mutations throughout the ATP7B gene have been described, most of which are missense mutations. Mutations in both ATP7B alleles result in abnormal copper metabolism and subsequent toxic accumulation of copper. The clinical manifestations of neurologic WD include variable combinations of dysarthria, dystonia, tremor, and choreoathetosis. Misdiagnosis and delay in treatment are clinically relevant because untreated WD progresses to hepatic failure or severe neurologic disability and death. Treatment can prevent and cure WD. Mutations in a second, closely related copper transporting ATPase, ATP7A, cause a spectrum of copper deficiency disorders that include Menkes disease, occipital horn syndrome, and ATP7A-related distal motor neuropathy. Two important, nongenetic causes of copper deficiency myeloneuropathy are copper deficiency following gastric bypass or due to excess zinc ingestion, both of which can cause a myeloneuropathy similar to vitamin B12 deficiency. Copper deficiency following gastric bypass is preventable, and identification and elimination of the excess zinc source, most commonly dental cream, can result in recovery. PMID- 29325618 TI - Neurodegeneration with brain iron accumulation. AB - Neurodegeneration with brain iron accumulation (NBIA) comprises a clinically and genetically heterogeneous group of disorders affecting children and adults. These rare disorders are often first suspected when increased basal ganglia iron is observed on brain magnetic resonance imaging. For the majority of NBIA disorders the genetic basis has been delineated, and clinical testing is available. The four most common NBIA disorders include pantothenate kinase-associated neurodegeneration (PKAN) due to mutations in PANK2, phospholipase A2-associated neurodegeneration caused by mutation in PLA2G6, mitochondrial membrane protein associated neurodegeneration from mutations in C19orf12, and beta-propeller protein-associated neurodegeneration due to mutations in WDR45. The ultrarare NBIA disorders are caused by mutations in CoASY, ATP13A2, and FA2H (causing CoA synthase protein-associated neurodegeneration, Kufor-Rakeb disease, and fatty acid hydroxylase-associated neurodegeneration, respectively). Together, these genes account for disease in approximately 85% of patients diagnosed with an NBIA disorder. New NBIA genes are being recognized with increasing frequency as a result of whole-exome sequencing, which is also facilitating early ascertainment of patients whose phenotype is often nonspecific. PMID- 29325619 TI - Clinical approach to the patient with neurogenetic disease. AB - Neurogenetic diseases are surprisingly common. This chapter reviews a systematic approach to the evaluation of a patient thought to have such a disease. The emphasis is on first recognizing potential clues to the diagnosis contained in the family history and presentation of symptoms. Ataxia, neuropathy, muscle weakness, dementia, epilepsy, and cognitive delay are all "reservoirs" of neurogenetic disease. A high index of suspicion for genetic causes and a thoughtful evaluation of simplex (sporadic) cases is often necessary. Then the physician can proceed to the differential diagnosis, genetic testing, and genetic counseling. A team approach including a genetic counselor is usually the best strategy. PMID- 29325620 TI - Primary familial brain calcifications. AB - Primary familial brain calcification (PFBC) is a neurodegenerative disease with characteristic calcium deposits in the basal ganglia and other brain regions. The disease usually presents as a combination of abnormal movements, cognitive and psychiatric manifestations, clinically indistinguishable from other adult-onset neurodegenerative disorders. The differential diagnosis must be established with genetic and nongenetic disorders that can also lead to calcium deposits in encephalic structures. In the past years PFBC causal mutations have been discovered in genes related to calcium phosphate homeostasis (SLC20A2, XPR1) and in genes involved with endothelial function and integrity (PDGFB, PDGFRB). The most frequently mutated gene is SLC20A2, where mutations can affect any domain of the protein. There is no clearcut relationship between the specific mutation/gene, onset age, neuroimaging pattern, and severity of clinical manifestations. The discovery of the genetic basis of PFBC provides not only a diagnostic tool, but also an insight into the pathomechanisms and potential therapeutic trials for this rare disease. PMID- 29325621 TI - Genetics of autism spectrum disorder. AB - Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder characterized by impaired social interaction and stereotyped behaviors. ASD has a strong and complex genetic component, with multiple familial inheritance patterns and an estimate of up to 1000 genes potentially implicated. Over the past decade, genomic technologies have enabled rapid progress in the identification of risk genes for ASD. In this chapter, we review the delineation of ASD disease genes starting from traditional genetic studies such as linkage and association, and then focusing on more recent studies utilizing genomic technologies, such as high throughput genotyping and exome sequencing. PMID- 29325622 TI - The emerging genetic landscape of cerebral palsy. AB - Cerebral palsy (CP) is a broad clinical descriptor that encompasses a heterogeneous group of nonprogressive neurodevelopmental disabilities affecting movement and posture. While linked by the presence of damage to the developing brain, the etiology of CP is likely varied and the clinical outcomes are diverse. There is now a large body of evidence supporting a significant role for genetics in causation of CP. An increasing number of studies have identified likely causative genetic variants in families with CP, as well as in individual sporadic cases. Next-generation sequencing is now aiding clinicians in making specific molecular diagnoses, providing future opportunities for tailored treatments and for informed reproductive decisions. PMID- 29325623 TI - Tourette disorder and other tic disorders. AB - Tourette disorder is a developmental neuropsychiatric condition characterized by vocal and motor tics that can range in severity from mild to disabling. It represents one end of a spectrum of tic disorders and is estimated to affect 0.5 0.7% of the population. Accumulated evidence supports a substantial genetic contribution to disease risk, but the identification of genetic variants that confer risk has been challenging. Positive findings in candidate gene association studies have not replicated, and genomewide association studies have not generated signals of genomewide significance, in large part because of inadequate sample sizes. Rare mutations in several genes have been identified, but their causality is difficult to establish. As in other complex neuropsychiatric disorders, it is likely that Tourette disorder risk involves a combination of common, low-effect and rare, larger-effect variants in multiple genes acting together with environmental factors. With the ongoing collection of larger patient cohorts and the emergence of affordable high-throughput genomewide sequencing, progress is expected to accelerate in coming years. PMID- 29325624 TI - Sex chromosome aneuploidies. AB - Sex chromosome aneuploidies comprise a relatively common group of chromosome disorders characterized by the loss or gain of one or more sex chromosomes. We discuss five of the better-known sex aneuploidies: Turner syndrome (XO), Klinefelter syndrome (XXY), trisomy X (XXX), XYY, and XXYY. Despite their prevalence in the general population, these disorders are underdiagnosed and the specific genetic mechanisms underlying their phenotypes are poorly understood. Although there is considerable variation between them in terms of associated functional impairment, each disorder has a characteristic physical, cognitive, and neurologic profile. The most common cause of sex chromosome aneuploidies is nondisjunction, which can occur during meiosis or during the early stages of postzygotic development. The loss or gain of genetic material can affect all daughter cells or it may be partial, leading to tissue mosaicism. In both typical and atypical sex chromosome karyotypes, there is random inactivation of all but one X chromosome. The mechanisms by which a phenotype results from sex chromosome aneuploidies are twofold: dosage imbalance arising from a small number of genes that escape inactivation, and their endocrinologic consequences. PMID- 29325625 TI - Evolving views of human genetic variation and its relationship to neurologic and psychiatric disease. AB - Recent advances in exome and genome sequencing in populations are beginning to define the genetic architecture of neurologic and psychiatric disease. At the same time these findings are changing our perspective of genetic variant contributions to disease, implicating both rare and common genetic variation in common diseases. Most of what we know about genetic contributions to disease so far comes from analysis of mutations in protein-coding genes. Since most genetic variation lies in nonprotein-coding regions of the genome whose presumed function is entirely regulatory, understanding gene regulation in a cell type and developmental state-specific manner will be important to connect human genetic variation to disease mechanisms. PMID- 29325626 TI - Fragile X syndrome and fragile X-associated tremor ataxia syndrome. AB - Fragile X-associated disorders encompass several conditions, which are caused by expansion mutations in the fragile X mental retardation 1 (FMR1) gene. Fragile X syndrome is the most common inherited etiology of intellectual disability and results from a full mutation or >200 CGG repeats in FMR1. It is associated with developmental delay, autism spectrum disorder, and seizures. Fragile X-associated tremor/ataxia syndrome is a progressive neurodegenerative disease that occurs in premutation carriers of 55-200 CGG repeats in FMR1 and is characterized by kinetic tremor, gait ataxia, parkinsonism, executive dysfunction, and neuropathy. Fragile X-associated primary ovarian insufficiency also occurs in premutation carrier women and manifests with infertility and early menopause. The diseases constituting fragile X-associated disorders differ mechanistically, due to the distinct molecular properties of premutation versus full mutations. Fragile X syndrome occurs when there is a lack of fragile X mental retardation protein (FMRP) due to FMR1 methylation and silencing. In fragile X-associated tremor ataxia syndrome, a toxic gain of function is postulated with the production of excess CGG repeat-containing FMR1 mRNA, abnormal translation of the repeat sequence leading to production of polyglycine, polyalanine, and other polypeptides and to outright deficits in translation leading to reduced FMRP at larger premutation sizes. The changes in underlying brain chemistry due to FMR1 mutations have led to therapeutic studies in these disorders, with some progress being made in fragile X syndrome. This paper also summarizes indications for testing, genetic counseling issues, and what the future holds for these disorders. PMID- 29325627 TI - Epigenetic mechanisms underlying nervous system diseases. AB - Epigenetic mechanisms act as control systems for modulating genomic structure and activity in response to evolving profiles of cell-extrinsic, cell-cell, and cell intrinsic signals. These dynamic processes are responsible for mediating cell- and tissue-specific gene expression and function and gene-gene and gene environmental interactions. The major epigenetic mechanisms include DNA methylation and hydroxymethylation; histone protein posttranslational modifications, nucleosome remodeling/repositioning, and higher-order chromatin reorganization; noncoding RNA regulation; and RNA editing. These mechanisms are intimately involved in executing fundamental genomic programs, including gene transcription, posttranscriptional RNA processing and transport, translation, X chromosome inactivation, genomic imprinting, retrotransposon regulation, DNA replication, and DNA repair and the maintenance of genomic stability. For the nervous system, epigenetics offers a novel and robust framework for explaining how brain development and aging occur, neural cellular diversity is generated, synaptic and neural network connectivity and plasticity are mediated, and complex cognitive and behavioral phenotypes are inherited transgenerationally. Epigenetic factors and processes are, not surprisingly, implicated in nervous system disease pathophysiology through several emerging paradigms - mutations and genetic variation in genes encoding epigenetic factors; impairments in epigenetic factor expression, localization, and function; epigenetic mechanisms modulating disease associated factors and pathways; and the presence of deregulated epigenetic profiles in central and peripheral tissues. PMID- 29325628 TI - Pharmacogenetics. AB - Pharmacogenetics is the study of how genetics influences drug treatment outcomes. Much research has been conducted to identify and characterize gene variants that impact the pharmacokinetic and pharmacodynamic aspects of medications used to treat neurologic and psychiatric disorders. This chapter reviews the current state of pharmacogenetic aspects of these treatments. Medications with supporting pharmacogenetic information in product labeling, clinical guidelines, or important mechanistic implications are discussed. At this time, clinically relevant genetic variation in drug metabolizing enzymes may inform drug dosing for a number of medications metabolized in the liver. Additionally, genetic variation in immunological genes may be tested to assess risk for severe hypersensitivity reactions to some anticonvulsant drugs. Finally, a growing body of research highlights that genetic polymorphisms in drug targets may influence symptom response or tolerability to some treatments. PMID- 29325630 TI - Towards precision medicine. AB - The concept of precision medicine, also referred to as individualized or personalized medicine, has recently gained traction in scientific, medical, and public spheres, and is frequently mentioned as the next model of healthcare delivery. Its goal is to integrate unique information obtained from a given patient to customize the care provided to achieve the best possible outcome. Although precision medicine is not fully implemented yet, its application is slowly infiltrating clinical practice, and the dream of individualizing healthcare to each patient is now closer to being fulfilled. This chapter summarizes the current status of personalized medicine in the neurology clinic, including precision diagnostics and individualized therapeutics. Subsequently, we address the main hurdles that the healthcare community needs to overcome to expand this model of healthcare delivery and predict how this evolving field will shape future neurologic practice. PMID- 29325629 TI - Bioinformatics and genomic databases. AB - High-throughput, low-cost sequencing technologies have begun to yield new insights into biology and medicine. New data enable the interrogation of the molecular biology of disease from DNA to RNA to protein, charting the central dogma. This chapter reviews some of the key advances and resources in the application of bioinformatics to understanding, and ultimately diagnosing and treating, diseases of the nervous system. Array genotyping, exome sequencing, and whole-genome sequencing, in both disease and healthy populations, have enabled the interpretation of new genetic data. Profiling of epigenetic markers, such as histone modifications, has added to our understanding of the regulatory machinery of the genome. Downstream, mRNA, and protein expression data from published experiments and high-throughput studies enable complex analyses of gene function across many experimental conditions and tissues. Further delineation of molecular mechanism arises from the concept of genes working together in pathways or networks, reflecting direct protein interactions and regulatory relationships. The rapidly moving field of bioinformatics has made significant contributions to neurology in these early days; continued advances promise to transform medicine from basic science to clinical practice, as more genomics data are generated, combined, and analyzed in the future. PMID- 29325631 TI - Preface. PMID- 29325632 TI - Foreword. PMID- 29325633 TI - Lowering the Thresholds of Diseases: Is Anyone Still Healthy? PMID- 29325634 TI - Relationship of Aging and Incident Comorbidities to Stroke Risk in Patients With Atrial Fibrillation. AB - BACKGROUND: When assessing ischemic stroke risk in patients with atrial fibrillation (AF), the CHA2DS2-VASc score is calculated based on the baseline risk factors, and the outcomes are determined after a follow-up period. However, the stroke risk in patients with AF does not remain static, and with time, patients get older and accumulate more comorbidities. OBJECTIVES: This study hypothesized that the "Delta CHA2DS2-VASc score," which reflects the change in score between baseline and follow-up, would be more predictive of ischemic stroke compared with the baseline CHA2DS2-VASc score. METHODS: A total of 31,039 patients with AF who did not receive antiplatelet agents or oral anticoagulants, and who did not have comorbidities of the CHA2DS2-VASc score except for age and sex, were studied. The Delta CHA2DS2-VASc scores were defined as the differences between the baseline and follow-up CHA2DS2-VASc scores. During 171,956 person years, 4,103 patients experienced ischemic stroke. The accuracies of baseline, follow-up, and Delta CHA2DS2-VASc scores in predicting ischemic stroke were analyzed and compared. RESULTS: The mean baseline CHA2DS2-VASc score was 1.29, which increased to 2.31 during the follow-up, with a mean Delta CHA2DS2-VASc score of 1.02. The CHA2DS2-VASc score remained unchanged in only 40.8% of patients. Among 4,103 patients who experienced ischemic stroke, 89.4% had a Delta CHA2DS2-VASc score >=1 compared with only 54.6% in patients without ischemic stroke, and 2,643 (64.4%) patients had >=1 new-onset comorbidity, the most common being hypertension. The Delta CHA2DS2-VASc score was a significant predictor of ischemic stroke that performed better than baseline or follow-up CHA2DS2-VASc scores, as assessed by the C-index and the net reclassification index. CONCLUSIONS: In this AF cohort, the authors demonstrated that the CHA2DS2-VASc score was not static, and that most patients with AF developed >=1 new stroke risk factor before presentation with ischemic stroke. The Delta CHA2DS2-VASc score, reflecting the change in score between baseline and follow-up, was strongly predictive of ischemic stroke, reflecting how stroke risk in AF is a dynamic process due to increasing age and incident comorbidities. PMID- 29325635 TI - Stroke Prediction Rules in Atrial Fibrillation. PMID- 29325636 TI - Left Atrial Appendage Closure and Systemic Homeostasis: The LAA HOMEOSTASIS Study. AB - BACKGROUND: The impact of left atrial appendage (LAA) exclusion, comparing an epicardial LAA or an endocardial LAA device, on systemic homeostasis remains unknown. OBJECTIVES: This study compared the effects of epicardial or endocardial LAA devices on the neurohormonal profiles of patients, emphasizing the roles of the renin-angiotensin-aldosterone system and the autonomic nervous system. METHODS: This is a prospective, single-center, observational study including 77 patients who underwent LAA closure by an epicardial (n = 38) or endocardial (n = 39) device. Key hormones involved in the adrenergic system (adrenaline, noradrenaline), renin-angiotensin-aldosterone system (aldosterone, renin), metabolic system (adiponectin, free fatty acids, insulin, beta-hydroxybutyrate, and free glycerols), and natriuresis (atrial and B-type natriuretic peptides) were assessed immediately before the procedure, immediately after device deployment, at 24 h, and at 3 months follow-up. RESULTS: In the endocardial LAA device group, when compared with baseline blood adrenaline, noradrenaline and aldosterone were significantly lower at 24 h and 3 months (p < 0.05). There was no significant change in levels post-endocardial LAA device implantation. After epicardial LAA device implantation, there were significant increases in adiponectin and insulin, with decreased free fatty acids at 3 months. There was no significant change in these levels post-endocardial LAA device. N-terminal pro A-type natriuretic peptide and N-terminal pro-B-type natriuretic peptide were significantly decreased in the acute phase after epicardial LAA device implantation, which subsequently normalized at 3 months. Post endocardial LAA device implantation, the levels increased immediately and normalized after 24 h. Systemic blood pressure was also significantly lower at all time points after epicardial LAA device implantation, which was not seen post-endocardial LAA device implantation. CONCLUSIONS: There are substantial differences in hemodynamics and neurohormonal effects of LAA exclusion with epicardial and endocardial devices. Further studies are required to elucidate the underlying mechanism of these physiological changes. PMID- 29325637 TI - Neurohormonal Regulation and the Left Atrial Appendage: Still More to Learn. PMID- 29325638 TI - Implantable Cardioverter-Defibrillators in Children and Adolescents With Brugada Syndrome. AB - BACKGROUND: Young patients presenting with symptomatic Brugada syndrome have very high risks for ventricular arrhythmias and should be carefully considered for implantable cardioverter-defibrillator (ICD) placement. However, this therapy is associated with high rates of inappropriate shocks and device-related complications. OBJECTIVES: This study investigated clinical features, management, and long-term follow-up of young patients with Brugada syndrome and ICD. METHODS: Patients diagnosed with Brugada syndrome, who underwent implantation of an ICD at an age of <=20 years, were studied. RESULTS: The study included 35 consecutive patients. The mean age at ICD placement was 13.9 +/- 6.2 years. Ninety-two percent were symptomatic; 29% presented with aborted sudden cardiac death and 63% with syncope. During a mean follow-up period of 88 months, sustained ventricular arrhythmias were treated by the ICD in 9 patients (26%), including shocks in 8 patients (23%) and antitachycardia pacing in 1 patient (3%). Three patients (9%) died in an electrical storm. Seven patients (20%) experienced inappropriate shocks, and 5 patients (14%) had device-related complications. Aborted sudden cardiac death and spontaneous type I electrocardiogram were identified as independent predictors of appropriate shock occurrence. CONCLUSIONS: ICD therapy is an effective strategy in young patients with symptomatic Brugada syndrome, treating potentially lethal arrhythmias in >25% of patients during follow-up. Appropriate shocks were significantly associated with previously aborted sudden cardiac death and spontaneous type I electrocardiograms. However, ICDs are frequently associated with complications and inappropriate shocks, both of which remain high regardless of careful device implantation and programming. PMID- 29325639 TI - Pediatric Brugada Syndrome: Avoiding the Inappropriate ICD. PMID- 29325640 TI - Selective EGF-Receptor Inhibition in CD4+ T Cells Induces Anergy and Limits Atherosclerosis. AB - BACKGROUND: Several epidermal growth factor receptor (EGFR) inhibitors have been successfully developed for the treatment of cancer, limiting tumor growth and metastasis. EGFR is also expressed by leukocytes, but little is known about its role in the modulation of the immune response. OBJECTIVES: The aim of this study was to determine whether EGFR expressed on CD4+ T cells is functional and to address the consequences of EGFR inhibition in atherosclerosis, a T cell-mediated vascular chronic inflammatory disease. METHODS: The authors used EGFR tyrosine kinase inhibitors (AG-1478, erlotinib) and chimeric Ldlr-/-Cd4-Cre/Egfrlox/lox mouse with a specific deletion of EGFR in CD4+ T cells. RESULTS: Mouse CD4+ T cells expressed EGFR, and the EGFR tyrosine kinase inhibitor AG-1478 blocked in vitro T cell proliferation and Th1/Th2 cytokine production. In vivo, treatment of Ldlr-/- mice with the EGFR inhibitor erlotinib induced T cell anergy, reduced T cell infiltration within atherosclerotic lesions, and protected against atherosclerosis development and progression. Selective deletion of EGFR in CD4+ T cells resulted in decreased T cell proliferation and activation both in vitro and in vivo, as well as reduced interferon-gamma, interleukin-4, and interleukin-2 production. Atherosclerotic lesion size was reduced by 2-fold in irradiated Ldlr /- mice reconstituted with bone marrow from Cd4-Cre/Egfrlox/lox mice, compared to Cd4-Cre/Egfr+/+ chimeric mice, after 4, 6, and 12 weeks of high-fat diet, associated with marked reduction in T cell infiltration in atherosclerotic plaques. Human blood T cells expressed EGFR and EGFR inhibition reduced T cell proliferation both in vitro and in vivo. CONCLUSIONS: EGFR blockade induced T cell anergy in vitro and in vivo and reduced atherosclerosis development. Targeting EGFR may be a novel strategy to combat atherosclerosis. PMID- 29325641 TI - Taming Immune and Inflammatory Responses to Treat Atherosclerosis. PMID- 29325644 TI - Direct Oral Anticoagulants and Risk of Acute Kidney Injury in Patients With Atrial Fibrillation. PMID- 29325643 TI - The Secret Life of Exosomes: What Bees Can Teach Us About Next-Generation Therapeutics. AB - Mechanistic exploration has pinpointed nanosized extracellular vesicles, known as exosomes, as key mediators of the benefits of cell therapy. Exosomes appear to recapitulate the benefits of cells and more. As durable azoic entities, exosomes have numerous practical and conceptual advantages over cells. Will cells end up just being used to manufacture exosomes, or will they find lasting value as primary therapeutic agents? Here, a venerable natural process-the generation of honey-serves as an instructive parable. Flowers make nectar, which bees collect and process into honey. Cells make conditioned medium, which laboratory workers collect and process into exosomes. Unlike flowers, honey is durable, compact, and nutritious, but these facts do not negate the value of flowers themselves. The parallels suggest new ways of thinking about next-generation therapeutics. PMID- 29325645 TI - Persistent Survival Benefit From Remote Ischemic Pre-Conditioning in Patients Undergoing Coronary Artery Bypass Surgery. PMID- 29325646 TI - Functional Contribution of Circumferential Versus Longitudinal Strain: Different Concepts Suggest Conflicting Results. PMID- 29325642 TI - NHLBI Working Group Recommendations to Reduce Lipoprotein(a)-Mediated Risk of Cardiovascular Disease and Aortic Stenosis. AB - Pathophysiological, epidemiological, and genetic studies provide strong evidence that lipoprotein(a) [Lp(a)] is a causal mediator of cardiovascular disease (CVD) and calcific aortic valve disease (CAVD). Specific therapies to address Lp(a) mediated CVD and CAVD are in clinical development. Due to knowledge gaps, the National Heart, Lung, and Blood Institute organized a working group that identified challenges in fully understanding the role of Lp(a) in CVD/CAVD. These included the lack of research funding, inadequate experimental models, lack of globally standardized Lp(a) assays, and inadequate understanding of the mechanisms underlying current drug therapies on Lp(a) levels. Specific recommendations were provided to facilitate basic, mechanistic, preclinical, and clinical research on Lp(a); foster collaborative research and resource sharing; leverage expertise of different groups and centers with complementary skills; and use existing National Heart, Lung, and Blood Institute resources. Concerted efforts to understand Lp(a) pathophysiology, together with diagnostic and therapeutic advances, are required to reduce Lp(a)-mediated risk of CVD and CAVD. PMID- 29325647 TI - Myocardial Contraction Fraction: A Volumetric Measure of Myocardial Shortening Analogous to Strain. PMID- 29325648 TI - Complexities in Modeling the Relationship Between Longitudinal Strain and Ejection Fraction. PMID- 29325649 TI - Reply: Interaction Between Longitudinal, Circumferential, and Radial Deformations and Their Contributions to Ejection Fraction. PMID- 29325650 TI - Arterial Thromboembolism in Non-Hodgkin Lymphoma. PMID- 29325651 TI - Recurrent Late Bioresorbable Scaffold Thrombosis as a Presenting Symptom of Underlying Cancer. PMID- 29325652 TI - Risk of Arterial Thrombosis in Cancer Patients: Which Role for Cancer Therapies Vascular Toxicities? PMID- 29325654 TI - Celebrating JNEB's 50th volume. PMID- 29325655 TI - A Comment on Mann G "Smart Snacks in School Legislation Does Not Change Self Reported Snack Food and Beverage Intake of Middle School Students in Rural Appalachian Region": Methodological Issues. PMID- 29325653 TI - Reply: Arterial Thromboembolism in Non-Hodgkin Lymphoma, as the Presentation of Occult Cancer, and With Cancer Therapies. PMID- 29325656 TI - Response to "A Comment on Mann G 'Smart Snacks in School Legislation Does Not Change Self-Reported Snack Food and Beverage Intake of Middle School Students in Rural Appalachian Region': Methodological Issues". PMID- 29325657 TI - My Quest, an Intervention Using Text Messaging to Improve Dietary and Physical Activity Behaviors and Promote Weight Loss in Low-Income Women. AB - OBJECTIVE: To evaluate changes in dietary and physical activity behaviors and weight after implementation of a 12-week text messaging initiative (My Quest). DESIGN: The researchers conducted a 1-group, pre- to posttest study design to determine changes after implementation of a text messaging initiative developed using the tenets of the Social Cognitive Theory. SETTING: A total of 55 Alabama counties (84% rural) with high rates of poverty, overweight/obesity, and chronic diseases. PARTICIPANTS: Convenience sample of low-income, primarily overweight/obese women (n = 104). INTERVENTION: Short texts (n = 2-3/d) provided health tips, reminders, and goal-setting prompts. Weekly electronic newsletters provided tips and recipes. Participant self-monitored body weight weekly. MAIN OUTCOME MEASURE: Outcomes included goal setting, self-efficacy, behavioral and environmental factors, self-monitoring, and body weight; data collection occurred through text message response and online surveys. ANALYSIS: Analyses were conducted using McNemar test (dichotomous data), Wilcoxon signed rank test (ordinal data), or paired t test (continuous data). RESULTS: Participants significantly (P < .05) improved dietary and physical activity behaviors and food environment; increased dietary and physical activity goal setting; and reduced body weight. CONCLUSIONS AND IMPLICATIONS: A low-cost, text messaging initiative particularly targeting women residing in rural communities with high rates of poverty and obesity can promote weight loss and improve dietary and physical activity behaviors. Future studies may include a control group and social support component such as group text messaging. PMID- 29325658 TI - Tele-Motivational Interviewing for Cancer Survivors: Feasibility, Preliminary Efficacy, and Lessons Learned. AB - OBJECTIVE: Determine the feasibility, acceptability, and efficacy of tele Motivational Interviewing (MI) for overweight cancer survivors. DESIGN: Six-month nonrandomized phase 2 clinical trial. SETTING: Urban garden and remote platforms. PARTICIPANTS: Overweight and obese cancer survivors post active treatment. INTERVENTION: Remote tele-MI from a trained registered dietitian nutritionist (RDN). MAIN OUTCOME MEASURES: Feasibility, acceptability, and preliminary efficacy. ANALYSIS: Groups were stratified as users and nonusers based on tele-MI use. Qualitative survey data and remote MI interaction logs were analyzed for trends. Two-sample t tests were performed to assess pre-post intervention changes in physical activity and dietary behaviors, quality of life, self-efficacy, and clinical biomarkers. RESULTS: A total of 29 participants completed the intervention. There were 17 tele-MI users (59%) and 12 nonusers (41%). Users were primarily female (88%), breast cancer survivors (59%), college educated (82%), with a mean age of 58 years. Users set 50% more goals, lost more weight (4.8 vs 2.6 kg), significantly improved quality of life (P = .03), and trended more positively in clinical biomarkers (eg, cholesterol, blood pressure) than did nonusers. CONCLUSIONS AND IMPLICATIONS: Findings from this study indicate that tele-MI is a feasible and acceptable intervention for overweight cancer survivors after active therapy. Larger randomized trials are needed to establish efficacy and generalizability to a variety of demographic populations. PMID- 29325659 TI - Technology and JNEB's Birthday. PMID- 29325660 TI - Impact of the Lactation Advice Through Texting Can Help (LATCH) Trial on Time to First Contact and Exclusive Breastfeeding among WIC Participants. AB - OBJECTIVE: Determine the impact of a 2-way text messaging intervention on time to contact between participants and their breastfeeding peer counselors (BFPCs) and on exclusive breastfeeding (EBF) status at 2 weeks and 3 months postpartum. DESIGN: Multisite, single-blind, randomized, controlled trial. SETTING: Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) BFPC program. PARTICIPANTS: Low-income women (n = 174) participating in the WIC BFPC program. INTERVENTION: The control group received the standard of care WIC Loving Support BFPC program. The intervention group received standard of care plus the text messaging intervention. MAIN OUTCOME MEASURES: Time to contact with BFPC and EBF status. ANALYSIS: The 2-sample t test or chi2 test assessed whether an association existed between study variables and each outcome. Multivariable ordinal and binary logistic regression assessed the impact of the intervention on time to contact and EBF status. RESULTS: Lactation Advice Through Texting Can Help had a significant impact on early contact between participants and BFPCs (odds ratio = 2.93; 95% confidence interval, 1.35-6.37) but did not have a significant impact on EBF (odds ratio = 1.26; 95% confidence interval, 0.54 2.66). CONCLUSIONS AND IMPLICATIONS: Lactation Advice Through Texting Can Help has the potential to facilitate the work of BFPCs by shortening the time-to-first contact with clients after giving birth. Research is needed to identify the level of breastfeeding support staff coverage that WIC clinics must have to meet the demand for services created by Lactation Advice Through Texting Can Help. PMID- 29325661 TI - Facebook: The Use of Social Media to Engage Parents in a Preschool Obesity Prevention Curriculum. AB - OBJECTIVE: This study investigated the use of Facebook to deliver health-related education materials to augment a preschool classroom-based obesity prevention curriculum. DESIGN: Cross-sectional, mixed methods (descriptive and interviews). SETTING: Head Start classrooms administered by 2 large agencies (1 rural and 1 urban). PARTICIPANTS: Convenience sample of parents in 13 classrooms (cohort 1, 3 classrooms; cohort 2, 10 classrooms). INTERVENTION: Delivery of nutrition education curriculum content using social media (Facebook). VARIABLES MEASURED: Qualitative interviews assessed barriers and facilitators to Facebook use. Parent views, likes, and comments were measured to reflect parent engagement with Facebook. ANALYSIS: Content analyses (qualitative data) and descriptive statistics (quantitative data). RESULTS: Family access (views) and interaction (comments and likes) with the posts varied based on type and content of posts. Rural families were more active. Barriers to parental Facebook engagement included a desire to see more posts from classroom teachers, lack of time, and misunderstanding about privacy protections. Facilitators of parental Facebook engagement included perceived utility of the content and social support. CONCLUSIONS AND IMPLICATIONS: Facebook was found to be a feasible platform to provide nutrition education and facilitated varying levels of parental engagement. Lessons learned and implications for prevention and intervention programming are offered. PMID- 29325662 TI - Farmers' Market Manager's Level of Communication and Influence on Electronic Benefits Transfer (EBT) Adoption at Midwest Farmers' Markets. AB - OBJECTIVE: To understand market managers' level of communication and use of technology that might influence decision to adopt Electronic Benefits Transfer (EBT) at farmers' markets. DESIGN: Cross-sectional study using the Theory of Diffusion of Innovation. SETTING: Electronic survey administered in midwest states of Illinois, Michigan, and Wisconsin. PARTICIPANTS: Farmers' market managers in Illinois, Michigan, and Wisconsin. MAIN OUTCOME MEASURES: Information on EBT adoption, market managers' communication, and technology use. ANALYSIS: Binary logistic regression analysis with EBT adoption as the dependent variable and frequency of technology use, partnership with organizations, farmers' market association (FMA) membership, Facebook page and Web site for the market, and primary source of information as independent variables. Chi-square tests and ANOVA were used to compare states and adopter categories. RESULTS: Logistic regression results showed that the odds of adopting EBT was 7.5 times higher for markets that had partnership with other organizations. Compared with non adopters, a significantly greater number of early adopters had partnership, FMA membership, and a Facebook page and Web site for market, and reported to a board of directors. CONCLUSIONS AND IMPLICATIONS: Markets that had partnership, FMA membership, a Facebook page and Web site, and mandatory reporting to a board of directors were important factors that influenced EBT adoption at midwest farmers' markets. PMID- 29325663 TI - Daily and Seasonal Influences on Dietary Self-monitoring Using a Smartphone Application. AB - OBJECTIVE: To examine within-person variation in dietary self-monitoring during a 6-month technology-supported weight loss trial as a function of time-varying factors including time in the study, day of the week, and month of the year. METHODS: Smartphone self-monitoring data were examined from 31 obese adults (aged 18-60 years) who participated in a 6-month technology-supported weight loss program. Multilevel regression modeling was used to examine within-person variation in dietary self-monitoring. RESULTS: Participants recorded less as time in the study progressed. Fewer foods were reported on the weekends compared with weekdays. More foods were self-monitored in January compared with October; however, a seasonal effect was not observed. CONCLUSIONS AND IMPLICATIONS: The amount of time in a study and day of the week were associated with dietary self monitoring but not season. Future studies should examine factors that influence variations in self-monitoring and identify methods to improve technology supported dietary self-monitoring adherence. PMID- 29325664 TI - Results of the Clinician Apps Survey, How Clinicians Working With Patients With Diabetes and Obesity Use Mobile Health Apps. AB - OBJECTIVE: To develop and administer a questionnaire to determine what factors may be associated with app use (including frequency of use, reasons to recommend to clients/patients, perceived effectiveness on health, health aspects used, features, and types of apps) by clinicians working in diabetes and weight management patient care settings. METHODS: The Clinician Apps Survey was developed and contained 3 question domains (smartphone apps use, behavior theory in counseling sessions, and demographics) to explore frequency, types, preferred features, benefits/barriers of using apps, counseling techniques used, and clinician demographics. Clinicians (n = 719) were recruited to complete the online survey through 4 dietetics and diabetes professional groups. Clinician use and preferences for health-related apps for personal reasons and in patient care settings were determined, and comparisons were made between high and non-app users. Descriptive statistics were used with current practices and attitudes about apps. Chi-square test of independence compared those using apps both personally and professionally (app enthusiasts) vs those with no app use. RESULTS: There were more app enthusiasts (53%; n = 380) than non-app users (20%; n = 145). Whereas 68% recommended pen/paper methods for diet and physical activity monitoring, 62% recommended apps. Most agreed that apps were superior to traditional methods for patients to track dietary intake (62%) and physical activity (58%), make better food choices (34%), lose weight (45%), and track blood glucose (43%). App enthusiasts used the American Association of Diabetes Educators self-care guidelines (P = .001) and advanced counseling techniques (eg, motivational interviewing) more often than did non-app users (P < .004). Apps most frequently recommended to clients were MyFitnessPal (n = 425), CalorieKing (n = 356), and Fitbit (n = 312). CONCLUSIONS AND IMPLICATIONS: Health-related smartphone apps are being widely used and recommended to patients with diabetes and obesity by clinicians for self-monitoring of dietary and physical activity behaviors. Furthermore, many clinicians believe that these types of tracking apps may improve patient outcomes compared with traditional methods of monitoring dietary and physical activity behaviors. PMID- 29325666 TI - Examining Internet Access and Social Media Application Use for Online Nutrition Education in SNAP-Ed Participants in Rural Illinois. AB - OBJECTIVE: To examine Internet access and interest in receiving nutrition education via social media applications among low-income adults participating in the Supplemental Nutrition Assistance Program Education (SNAP-Ed). METHODS: A cross-sectional survey was distributed during 25 SNAP-Ed classes throughout the 16 southernmost counties of Illinois. RESULTS: From 188 responses, the majority of participants had Internet access (76%). Among participants aged 18-32 years (n = 51), 92% owned a smartphone with Internet access and 57% indicated that they would use online nutrition education, with most interest in e-mail (41%), Facebook (40%), and text messaging (35%). There was little interest in using blogs, Vine, Twitter, Tumblr, and Pinterest. Overall, 49% of middle-aged adults aged 33-64 years and 87% of seniors aged >=65 years reported they would not use online nutrition education. CONCLUSIONS AND IMPLICATIONS: Results indicated similar Internet accessibility in southern Illinois among low-income populations compared with national rural rates. Interest in using online nutrition education varied among SNAP-Ed participants according to age. Young adults appeared to be the most captive audience regarding online nutrition education. Results may be useful to agencies implementing SNAP-Ed to supplement current curriculum with online nutrition education for audiences aged <=32 years. PMID- 29325667 TI - Development of an Online Smartphone-Based eLearning Nutrition Education Program for Low-Income Individuals. AB - The objective of this report was to describe the development process of an innovative smartphone-based electronic learning (eLearning) nutrition education program targeted to Supplemental Nutrition Assistance Program-Education-eligible individuals, entitled Food eTalk. Lessons learned from the Food eTalk development process suggest that it is critical to include all key team members from the program's inception using effective inter-team communication systems, understand the unique resources needed, budget ample time for development, and employ an iterative development and evaluation model. These lessons have implications for researchers and funding agencies in developing an innovative evidence-based eLearning nutrition education program to an increasingly technology-savvy, low income audience. PMID- 29325665 TI - Feasibility and Acceptability of Delivering a Postpartum Weight Loss Intervention via Facebook: A Pilot Study. AB - OBJECTIVE: To evaluate the feasibility and acceptability of a Facebook-delivered postpartum weight loss intervention. METHODS: Overweight and obese postpartum women received a 12-week weight loss intervention via Facebook. Feasibility outcomes were recruitment, retention, engagement, and acceptability. Weight loss was an exploratory outcome. RESULTS: Participants (n = 19) were 3.5 (SD 2.2) months postpartum with a baseline body mass index of 30.1 (SD 4.2) kg/m2. Retention was 95%. Forty-two percent of participants visibly engaged on the last day of the intervention, and 100% in the last 4 weeks; 88% were likely or very likely to participate again and 82% were likely or very likely to recommend the program to a postpartum friend. Average 12-week weight loss was 4.8% (SD 4.2%); 58% lost >=5%. CONCLUSIONS AND IMPLICATIONS: Findings suggested that this Facebook-delivered intervention is feasible and acceptable and supports research to test efficacy for weight loss. Research is needed to determine how best to engage participants in social network-delivered weight loss interventions. PMID- 29325668 TI - Increasing Sense of Community in Higher Education Nutrition Courses Using Technology. AB - Sense of community is integral across education formats and can affect achievement, interactivity, and retention. Factors shown to engage students and foster sense of community include the instructor focusing and directing discussions, encouraging open expression of opinions, responding to communications and feedback in a timely way, and giving the opportunity to build relationships. Technology has tremendous potential to enhance these activities at all levels of higher education. This article presents ways in which several technologies are used to enhance student experience in undergraduate and graduate nutrition course work across delivery formats. PMID- 29325669 TI - Kidney damage due to the use of anabolic androgenic steroides and practice of bodybuilding. PMID- 29325670 TI - Obesity and renal function. Data from the epidemiological study: Prevalence of chronic renal disease in Spain. EPIRCE Study. PMID- 29325671 TI - Evaluation of the dialyser inner diameter in online haemodiafiltration. AB - INTRODUCTION: Online haemodiafiltration (OL-HDF) has been associated with increased survival. To date, the influence of the inner diameter of the hollow fibres of the dialyser on convective volume has not been well established. The objective of the study was to evaluate the effect of increasing the inner diameter of the dialyser on the convective volume and removal capacity. MATERIAL AND METHODS: We included 16 patients in posdilutional OL-HDF with autosubstitution. Each patient was analysed in 4 sessions in which the inner diameter varied; 185MUm (FX60 Cordiax and FX80 Cordiax) versus 210MUm (FX600 Cordiax and FX800 Cordiax). Different solutes were measured at the beginning and end of each dialysis session. RESULTS: No differences in the convective volume were found with an increased inner diameter: 32.3+/-3.1 vs. 31.8+/-3.6 l/session (FX60 vs. FX600) and 33.7+/-4.3 vs. 33.5+/-3.8 l/session (FX80 vs. FX800). The reduction percentages also did not differ: urea 83.7+/-4.5 vs. 84.1+/-3.4 for FX60 and FX600, and 82.7+/-4.1 vs. 83.6+/-3.8 for FX80 vs. FX800; creatinine similar 78.2+/-5.6 vs. 77.8+/-4.6 y 77.1+/-5.4 vs. 78.1+/-4.9; beta2 microglobulin 82.2+/-4.3 vs. 82.9+/-4.2, and 82.9+/-4.7 vs. 84.0+/-3.8; myoglobin 71.0+/-10 vs. 70.2+/-9 and 72.8+/-11 vs. 75.0+/-10; prolactin 70.4+/-9 vs. 68.1+/ 9, and 72.2+/-10 vs. 73.4+/-8.2; and alpha1-microglobulin 22.9+/-10 vs. 21.6+/ 10, and 26.5+/-12 vs. 28.8+/-11, respectively. CONCLUSION: The increase in the inner diameter of the hollow fibres did not result in improved convective volume and removal capacity. PMID- 29325672 TI - Hyperkalemia of non-renal origin in a hemodialysis patient. PMID- 29325673 TI - Denosumab anf cronic kidney disease: Severe life-threatening hypocalcemia. PMID- 29325674 TI - Unclassifiable idiopathic interstitial pneumonias: A never-ending story? PMID- 29325675 TI - Mycophenolate mofetil as a therapeutic agent for interstitial lung diseases in systemic sclerosis. AB - Systemic sclerosis (SSc) is an intractable disease that causes fibrosis in all organs. Approximately 40% of patients with SSc have some degree of interstitial lung disease (ILD). One third of patients with SSc and ILD, approximately 15% of all patients, have pulmonary lesions, which slowly progress to respiratory failure resistant to corticosteroid and other treatments. A randomized controlled trial conducted in the United States indicated that one year of treatment with oral cyclophosphamide in patients with SSc-ILD had a significant but modest beneficial effect on lung function, dyspnea, thickening of the skin, and health related quality of life. However, all the effects, except for a sustained impact on dyspnea, disappeared approximately one year after stopping oral administration of cyclophosphamide. A randomized controlled trial using cyclophosphamide and mycophenolate mofetil (MMF) was then held in the United States for 142 patients with SSc-ILD. Treatment of SSc-ILD with MMF for two years or cyclophosphamide for one year both resulted in significant improvements in lung function over the 2 year course of the study. Leukopenia and thrombocytopenia occurred less often in patients administered MMF than in those administered cyclophosphamide. MMF is currently not approved for the treatment of SSc-ILD in Japan. Both MMF and cyclophosphamide were effective against ILD associated with SSc and, in particular, MMF was useful in terms of tolerability. When MMF is approved, it should be positioned as one of the first treatment options for SSc-ILD, which will further enhance the treatment of this disease in Japan. PMID- 29325676 TI - Respiratory function in healthy ever-smokers is impaired by smoking habits in a dose-dependent manner. AB - BACKGROUND: There is limited information about the respiratory function of ever smokers without lung disorders. We sought to assess the effects of smoking habits on respiratory function in subjects without lung disorders. METHODS: Subjects were recruited from among patients without any evidence of respiratory disorders who visited rural primary care clinics. Each participant was asked to answer a questionnaire that included questions smoking history. Their forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) were measured. RESULTS: We analyzed 802 subjects (364 men and 438 women). The means of the lambda-mu-sigma method derived z-score of FEV1 (zFEV1) both in current-smokers and ex-smokers were lower than that in never-smokers. The mean zFEV1 in the ever smokers with more than 30 pack-years of smoking history were lower than that in the ever-smokers with less smoking history. Univariate analysis showed that there were significant negative correlations between pack-years and zFEV1 both in the ex-smokers and current-smokers. There was no significant correlation between the duration of smoking cessation and zFEV1 in the ex-smokers. CONCLUSIONS: Our data suggests that respiratory function in healthy ever-smokers is decreased based on smoking habits in a dose-dependent manner. Even after a long period of smoking cessation, the decreased respiratory function seems to be maintained in ex smokers. PMID- 29325677 TI - Chronic obstructive pulmonary disease among lung cancer-free smokers: The importance of healthy controls. AB - BACKGROUND: The prevalence of chronic obstructive pulmonary disease (COPD) in smokers enrolled as "healthy" controls in studies is 10-50%. The COPD status of ideal smoker populations for lung cancer case-control studies should be checked via spirometry; however, this is often not feasible, because no medical indications exist for asymptomatic smokers to undergo spirometry prior to study enrollment. Therefore, there is an unmet need for robust, cost effective assays for identifying undiagnosed lung disease among asymptomatic smokers. Such assays would help excluding unhealthy smokers from lung cancer case-control studies. METHODS: We used the cytokinesis-blocked micronucleus (CBMN) assay (a measure of genetic instability) to identify undiagnosed lung disease among asymptomatic smokers. We used a convenience population from an on-going lung cancer case control study including smokers with lung cancer (n = 454), smoker controls (n = 797), and a self-reported COPD (n = 200) contingent within the smoker controls. RESULTS: Significant differences for all CBMN endpoints were observed when comparing lung cancer to All controls (which included COPD) and Healthy controls (with no COPD). The risk ratio (RR) was increased in the COPD group vs. Healthy controls for nuclear buds (RR 1.28, 95% confidence interval 1.01-1.62), and marginally increased for micronuclei (RR 1.06, 0.98-1.89) and nucleoplasmic bridges (RR 1.07, 0.97-1.15). CONCLUSION: These findings highlight the importance of using truly healthy controls in studies geared toward assessment of lung cancer risk. Using genetic instability biomarkers would facilitate the identification of smokers susceptible to tobacco smoke carcinogens and therefore predisposed to either disease. PMID- 29325678 TI - Is idiopathic PPFE an established subset of idiopathic interstitial pneumonias? PMID- 29325679 TI - Prevalence of diabetes mellitus in individuals with airflow obstruction in a Japanese general population: The Yamagata-Takahata Study. AB - BACKGROUND: Diabetes has been reported as a comorbidity of chronic obstructive pulmonary disease (COPD) in Western countries, but it has not been demonstrated in epidemiological reports in Japan. The purpose of this study was to clarify whether the relationship between airflow obstruction and diabetes can be confirmed in a Japanese general population. METHODS: From 2004 to 2006, blood sampling and pulmonary function tests were performed on 3045 people over the age of 40 years in annual health check-ups held in Takahata, Yamagata Prefecture, Japan. Pulmonary function was re-evaluated in 2009 and 2011. RESULTS: The prevalence of diabetes did not differ between subjects with and without airflow obstruction. Furthermore, although body mass index decreased, no increase in the prevalence of diabetes was observed with the progression of airflow obstruction. The annual changes in forced expiration volume in 1s (FEV1) did not differ depending on the presence or absence of diabetes in the study population. CONCLUSION: There was no difference in the prevalence of diabetes between subjects with airflow obstruction and those without. As patients with COPD in Japan are thinner than in the West, diabetes may not be a common comorbidity in Japanese patients with COPD. PMID- 29325680 TI - Clinico-radio-pathological characteristics of unclassifiable idiopathic interstitial pneumonias. AB - BACKGROUND: The purpose of this study was to clarify the clinico-radio pathological characteristics and prognostic factors of unclassifiable-idiopathic interstitial pneumonias (U-IIPs) diagnosed by surgical lung biopsy. METHODS: Among 86 patients with interstitial pneumonia who underwent surgical lung biopsy from January 2005 to September 2013, 33 (38.4%; 16 male patients; mean age, 64.4 +/- 8.8 years) were diagnosed with U-IIPs. They were subsequently categorized into rapidly progressive (n = 7), slowly progressive (n = 7), and stable (n = 19) groups based on the decrease of the percent predicted forced vital capacity or percent predicted diffusing capacity of the lung carbon monoxide and the occurrence of acute exacerbation. The clinico-radio-pathological features and survival rates of the patients who were followed up for at least 3 years were examined. These cases were reevaluated retrospectively by multidisciplinary discussion. RESULTS: The rapidly progressive group had a significantly poorer prognosis than that of the other groups (p < 0.0001). Although there were no significant pattern differences on the chest high-resolution computed tomography, the fibrosis scores were significantly higher in the rapidly progressive group (p = 0.002). Furthermore, the percentage of fibroblastic foci assessed by the pathological analysis was also significantly higher in the rapidly progressive group (p = 0.006). Nine (27.3%) patients developed connective tissue diseases during follow-up. CONCLUSIONS: The radiologic patterns were not significantly different among the three clinical U-IIPs subgroups. Nevertheless, our findings suggested that the fibrosis scores and the percentage of fibroblastic foci could provide a prognostic assessment in U-IIPs. PMID- 29325681 TI - Is hypothyroidism in idiopathic pleuroparenchymal fibroelastosis a novel lung thyroid syndrome? AB - BACKGROUND: Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is a rare type of interstitial pneumonia characterized by fibroelastosis. Patients with IPPFE as well as idiopathic interstitial pneumonia often have autoimmune diseases, which sometimes coincide with hypothyroidism (HypoT). However, there have been no reports on the association between IPPFE and HypoT. The purpose of this study was to evaluate the correlation between IPPFE and HypoT. We also examined the pathological features of the thyroid glands from autopsied cases. METHODS: Thirteen patients diagnosed with IPPFE from among 255 consecutive cases of idiopathic interstitial pneumonia were included in this study; pertinent data were obtained from our hospital's clinical library. We examined the prevalence of HypoT and compared the clinical, radiological, and pathological features between the patients with and those without HypoT. Histological analyses of the lungs and thyroid glands were performed in 4 and 3 cases, respectively. RESULTS: HypoT was identified in 7 of 13 patients (53.8%). Sex, body mass index, survival time, and laboratory test results were not significantly different between patients with and those without HypoT. Radiological and pathological lung findings were similar between both groups of patients. Thyroid gland histology demonstrated perifollicular or interlobular fibrosis without inflammation in all three cases, including a euthyroid case. CONCLUSIONS: Although we only analyzed a small number of IPPFE cases, HypoT was prevalent among all of them. Characteristic fibrosis in the thyroid gland was observed even in a euthyroid case. Therefore, patients with IPPFE may potentially have thyroid gland dysfunction through a common pathogenesis in both organs. PMID- 29325682 TI - Computer-based quantitative computed tomography image analysis in idiopathic pulmonary fibrosis: A mini review. AB - Idiopathic pulmonary fibrosis (IPF) is the most common type of progressive idiopathic interstitial pneumonia in adults. Many computer-based image analysis methods of chest computed tomography (CT) used in patients with IPF include the mean CT value of the whole lungs, density histogram analysis, density mask technique, and texture classification methods. Most of these methods offer good assessment of pulmonary functions, disease progression, and mortality. Each method has merits that can be used in clinical practice. One of the texture classification methods is reported to be superior to visual CT scoring by radiologist for correlation with pulmonary function and prediction of mortality. In this mini review, we summarize the current literature on computer-based CT image analysis of IPF and discuss its limitations and several future directions. PMID- 29325683 TI - Physical activity in daily life in patients with idiopathic pulmonary fibrosis. AB - BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is characterized by progressive impairment of lung function and degradation of daily activity; however, this degradation has not been adequately elucidated. The objective of this study was to measure the physical activity of patients with IPF to determine its relationships with physiological parameters and survival rate. METHODS: In total, 31 patients with IPF and 20 age-matched healthy participants were enrolled in this study. Physical activity was assessed using a physical activity monitor. The relationships among physical activity, physiological data, questionnaire-based patient-centered data, and survival were examined. RESULTS: Physical activity, expressed as daily activity energy expenditure (AEE), was significantly lower, and the percentage of sedentary time was significantly longer in patients with IPF than in healthy participants. Moreover, AEE was moderately correlated with body-mass index, forced vital capacity, diffusing capacity of carbon monoxide, and partial arterial pressure of oxygen. Relatively strong correlation was also observed between AEE and the 6-min walk distance, but not with daily dyspnea, depression, and health-related quality of life scores. Prognostic analysis indicated that daily AEE was a significant predictor of survival. CONCLUSIONS: Patients with IPF were significantly inactive compared with age-matched healthy participants. In patients with more impaired physiological functions, the lower the physical activity was, the more was the sedentary time increased. Furthermore, lower daily physical activity resulted in significantly worse survival. PMID- 29325684 TI - Respiratory comorbidities and risk of mortality in hospitalized patients with idiopathic pulmonary fibrosis. AB - BACKGROUND: Respiratory comorbidities are frequently associated with idiopathic pulmonary fibrosis (IPF). However, little is known about their prognostic impact in hospitalized patients with IPF. We examined the impact of respiratory comorbidities on the mortality rates of hospitalized patients with IPF using a Japanese nationwide database. METHODS: We identified 5665 hospitalized patients diagnosed with IPF between April 2010 and March 2013. The primary outcome was defined as the in-hospital mortality at 30 days after admission. The impact of respiratory comorbidities was assessed using a Cox proportional hazards model that incorporated clinically relevant factors. RESULTS: In hospitalized patients with IPF, the prevalence of bacterial pneumonia, pulmonary hypertension, and lung cancer were 9.5%, 4.6%, and 3.7%, respectively. Among patients with bacterial pneumonia, the four most common pathogens were Streptococcus pneumoniae (31.6%), methicillin-resistant Streptococcus aureus (18.4%), Klebsiella pneumoniae (9.2%), and Pseudomonas aeruginosa (9.2%). Lung cancer was more commonly found in the lower lobes (60.1%) than in other lobes. The survival at 30 days from admission was 78.4% in all patients and significantly lower in IPF patients with bacterial pneumonia (adjusted hazard ratio [HR], 1.30; 95% confidence interval [CI], 1.04 1.63; p < 0.023) and patients with lung cancer (adjusted HR, 1.99; 95% CI, 1.47 2.69; p < 0.001) than in others. Pulmonary hypertension was not associated with mortality. IPF patients with one or more of these three respiratory comorbidities had a poorer survival than others (p < 0.05). CONCLUSIONS: Respiratory comorbidities, especially bacterial pneumonia and lung cancer, influence mortality in hospitalized patients with IPF. PMID- 29325685 TI - Reduced incidence of lung cancer in patients with idiopathic pulmonary fibrosis treated with pirfenidone. AB - BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a disease with a worse prognosis than some types of cancer. In patients with IPF, lung cancer is critical because of the associated high mortality rate from its progression and fatal complications from anticancer treatments. Therefore, preventing lung cancer in patients with IPF is primordial. Pirfenidone is an anti-fibrotic agent that reduces the decline in forced vital capacity. This study aimed to assess the effect of pirfenidone in the development of lung cancer in patients with IPF. METHODS: Data from 261 patients with IPF with and without pirfenidone were retrospectively reviewed, and the incidence of lung cancer was analyzed. RESULTS: In the pirfenidone group, the incidence of lung cancer was significantly lower than in the non-pirfenidone group (2.4% vs. 22.0%, P < 0.0001). Multivariate Cox proportional hazards regression analysis demonstrated that pirfenidone decreased the risk of lung cancer (hazard ratio, 0.11; 95% confidence interval, 0.03 to 0.46; P = 0.003), whereas coexisting emphysema increased the incidence of lung cancer (hazard ratio, 3.22; 95% confidence interval, 1.35 to 7.70; P = 0.009). CONCLUSIONS: Pirfenidone might correlate with a decreased risk of lung cancer in patients with IPF. However, no definite conclusion can be drawn from this retrospective study, and a multicenter, prospective cohort study is still warranted to confirm the effect of pirfenidone on lung cancer in patients with IPF. PMID- 29325686 TI - Phase II study of tailored S-1 monotherapy with a 1-week interval after a 2-week dosing period in elderly patients with advanced non-small cell lung cancer. AB - BACKGROUND: S-1 is an oral fluoropyrimidine that is active in the treatment of non-small cell lung cancer (NSCLC); however, an optimal treatment schedule and appropriate dose adjustments of S-1 in elderly patients have not yet been established. METHODS: We conducted a phase II trial to evaluate the efficacy and safety of a 2-week S-1 monotherapy treatment followed by a 1-week interval as a first-line treatment of elderly NSCLC patients, by adjusting the dose based on the individual creatinine clearance (Ccr) and body surface area (BSA). The primary endpoint was the disease control rate. RESULTS: Forty patients were enrolled. The disease control and response rates were 89.5% (95% confidence interval [CI] = 79.8-99.2) and 7.9% (95% CI = 0.0-16.4), respectively. The median progression-free survival and overall survival times were 4.4 months (95% CI = 4.2-8.5) and 17.0 months (95% CI = 11.2-18.7), respectively. Neutropenia, anorexia, hyponatremia, hypokalemia, and pneumonia of grade >= 3 occurred in 5.0%, 7.5%, 5.0%, 2.5%, and 2.5% of patients, respectively. Among the patient reported outcomes, most of the individual factors in the patients' quality of life, including upper intestine-related symptoms improved with the treatment, except for dyspnea, which slightly albeit continuously worsened throughout the study. CONCLUSIONS: In elderly patients with previously untreated advanced NSCLC, a 2-week S-1 monotherapy treatment, tailored to both the Ccr and BSA, with a 1 week interval was well tolerated and demonstrated promising efficacy. This study was registered at the University Hospital Medical Information Network (UMIN) Center (ID: UMIN000002035), Japan. PMID- 29325688 TI - An impact factor for the 60 candles of the Annals. PMID- 29325689 TI - Osteoporosis: Heading Towards the Perfect Storm. PMID- 29325687 TI - Clinical significance and epidemiologic analyses of Mycobacterium avium and Mycobacterium intracellulare lung disease from post-marketing surveillance. AB - BACKGROUND: In Japan, nontuberculous mycobacterial lung disease is mostly attributable to Mycobacterium avium complex (MAC), i.e., M. avium or M. intracellulare. However, clinical features of the disease caused by these two pathogens have not been studied sufficiently yet. METHODS: A post-marketing survey of clarithromycin was performed at 130 facilities across Japan. The data on patients with M. avium infection and patients with M. intracellulare infection were selected from this survey for comparison of background variables and clinical features of the two pathogens. RESULTS: Among the patients analyzed (n = 368), 67.4% had M. avium infection and 32.6% had M. intracellulare infection. Stratified analysis revealed no significant differences between the ratio of the two pathogens based on gender, disease type, complication, past medical history, or smoking history. However, the percentage of patients with M. intracellulare infection was significantly higher among those with underlying lung disease than among those without lung disease (p = 0.0217). The percentage of patients with M. intracellulare infection rose significantly with age (p = 0.0296). This age related change was more significant in women (p = 0.0018). When district-wise analysis was performed for Japan, the percentage of M. intracellulare infection was higher in the Chugoku/Shikoku and Kyushu districts whereas the percentage of M. avium infection was higher in the other districts. CONCLUSIONS: This survey revealed some differences in the clinical and epidemiologic features of M. avium and M. intracellulare infection. The significant predominance of M. avium infection among relatively young women is suggestive of an increase in the M. avium/M. intracellulare infection ratio among women in the future. PMID- 29325691 TI - Predictors of recurrent sprains after an index lateral ankle sprain: a longitudinal study. AB - OBJECTIVE: To explore and identify the predictors of ankle sprain after an index (first) lateral ankle sprain. DESIGN: Prospective cohort study, Level of evidence II. SETTING: Musculoskeletal research laboratory at the University of Sydney. PARTICIPANTS: A sample of convenience (70 controls, 30 with an index sprain) was recruited. METHODS: Potential predictors of ankle sprain were measured including: demographic measures, perceived ankle instability, ankle joint ligamentous laxity, passive range of ankle motion, balance, proprioception, motor planning and control, and inversion/eversion peak power. Participants were followed up monthly and the number of ankle sprains was recorded over 12 months. RESULTS: Ninety-six participants completed the study; 10 participants sustained an ankle sprain. A combination of 10 predictors including: a recent index sprain, younger age, greater height and weight, perceived instability, increased laxity, impaired balance, and greater inversion/eversion peak power explained 27 to 56% of the variance in occurrence of ankle sprain (chi211,95=30.67, p=0.001). The regression model correctly classified 90% of cases. The strongest independent predictors were history of an index sprain (odds ratio (OR)=8.23, 95% confidence interval (CI)=1.66 to 40.72) and younger age (OR=8.41, 95%CI=1.48 to 47.96). CONCLUSION: A recent index ankle sprain and younger age were the only independent predictors of ankle sprain. The combination of greater height or weight, feeling of instability, peak power and impaired balance predicted the occurrence of ankle sprain in almost 90% of participants. These findings could form the basis for intervention targeted at reducing recurrence of sprain after an index sprain. PMID- 29325690 TI - Dose-volume effects in pathologic lymph nodes in locally advanced cervical cancer. AB - OBJECTIVE: In cervical cancer patients, dose-volume relationships have been demonstrated for tumor and organs-at-risk, but not for pathologic nodes. The nodal control probability (NCP) according to dose/volume parameters was investigated. MATERIAL AND METHODS: Patients with node-positive cervical cancer treated curatively with external beam radiotherapy (EBRT) and image-guided brachytherapy (IGABT) were identified. Nodal doses during EBRT, IGABT and boost were converted to 2-Gy equivalent (alpha/beta = 10 Gy) and summed. Pathologic nodes were followed individually from diagnosis to relapse. Statistical analyses comprised log-rank tests (univariate analyses), Cox proportional model (factors with p <= 0.1 in univariate) and Probit analyses. RESULTS: A total of 108 patients with 254 unresected pathological nodes were identified. The mean nodal volume at diagnosis was 3.4 +/- 5.8 cm3. The mean total nodal EQD2 doses were 55.3 +/- 5.6 Gy. Concurrent chemotherapy was given in 96%. With a median follow up of 33.5 months, 20 patients (18.5%) experienced relapse in nodes considered pathologic at diagnosis. Overall nodal recurrence rate was 9.1% (23/254). On univariate analyses, nodal volume (threshold: 3 cm3, p < .0001) and lymph node dose (>=57.5 Gyalpha/beta10, p = .039) were significant for nodal control. The use of simultaneous boost was borderline for significance (p = .07). On multivariate analysis, volume (HR = 8.2, 4.0-16.6, p < .0001) and dose (HR = 2, 1.05-3.9, p = .034) remained independent factors. Probit analysis combining dose and volume showed significant relationships with NCP, with increasing gap between the curves with higher nodal volumes. CONCLUSION: A nodal dose-volume effect on NCP is demonstrated for the first time, with increasing NCP benefit of additional doses to higher-volume nodes. PMID- 29325692 TI - Ontogenetic and temperature-dependent changes in tolerance to hypoxia and hydrogen sulfide during the early life stages of the Manila clam Ruditapes philippinarum. AB - Wind-induced upwelling of hypoxic waters containing hydrogen sulfide (H2S) sometimes causes mass mortalities of aquatic organisms inhabiting coastal areas, including the hypoxia-tolerant Manila clam Ruditapes philippinarum. We examined the tolerance of Manila clam to H2S under controlled laboratory conditions. Larvae and juveniles obtained by artificial fertilization or from a wild population were exposed to normoxic or to hypoxic water with or without un ionized H2S (concentrations, 0.2-52.2 mg/L). Twenty-four-hour exposure experiments revealed ontogenetic changes in the clam's tolerance to H2S exposure: tolerance was enhanced from the larval stages to juveniles just after settlement but was attenuated as juveniles grew. Tolerance of larvae and juveniles to H2S exposure weakened as the water temperature rose from 20 to 28 degrees C. Prolonged 48-h exposure to H2S attenuated the tolerance of juveniles to H2S. Temporary suspension of H2S exposure by 24-h reoxygenation improved the ability of juveniles to withstand repeated H2S exposure. PMID- 29325693 TI - Updates in the Eighth Edition of the Tumor-Node-Metastasis Staging Classification for Urologic Cancers. AB - : The Tumor-Node-Metastasis (TNM) classification on cancer staging, jointly developed by the American Joint Commission on Cancer (AJCC) and the Union for International Cancer Control (UICC), has been updated to its 8th edition with two contemporaneous versions published by the AJCC and UICC. While the goal of the AJCC and UICC is to have identical TNM staging systems, differences exist between these two publications including in the staging of urologic cancers. Among several new facets in the AJCC staging manual, a select few of greater import include an expanded section on imaging, presentation of levels of evidence for significant changes, and endorsement of risk assessment models that pass the AJCC quality criteria such as in prostate cancer. The updates for urologic cancers in the AJCC stage categories can be grouped into: (1) newly defined TNM categories and prognostic stage groupings, (2) clarifications and refinements of previously defined categories, and (3) more systematic and expanded presentation of prognostic factors. Changes are harmonized with the current reporting and treatment guidelines. Contributions from genitourinary pathology are evident in the AJCC classification from many of the International Society of Urological Pathology (ISUP) consensus conferences on prostate, kidney, testicular, and penile neoplasms that addressed staging issues and the timely publication of the 4th edition of the World Health Organization (WHO) classification of urinary and male genital organ tumors. New grading approaches for penile (WHO/ISUP grade), prostate (Grade group), and kidney (WHO/ISUP nucleolar grade) cancers were adopted in the AJCC system. Many of these updates in the AJCC staging manual are also included in the 8th UICC TNM edition. In an effort to achieve the optimal staging recommendations for urologic cancers, updates in the 8th TNM edition were generated through the acquisition of best evidences, tapping interdisciplinary resources including consensus recommendations, and enhanced data analysis. PATIENT SUMMARY: In this report, we explain the seminal changes in the 8th edition of the Tumor-Node-Metastasis staging system for urologic cancers. Major stage category definitional changes are in Tumor-Node-Metastasis classifications of testicular, penile, and prostate cancer which improve patient stratification for prognosis and management. PMID- 29325694 TI - Numerical modeling of polymorphic transformation of oleic acid via near-infrared spectroscopy and factor analysis. AB - Near-infrared (NIR) spectroscopy as a tool for direct and quantitatively screening the minute polymorphic transitions of bioactive fatty acids was assessed basing on a thermal heating process of oleic acid. Temperature-dependent NIR spectral profiles indicate that dynamical variances of COOH group dominate its gamma -> alpha phase transition, while the transition from active alpha to beta phase mainly relates to the conformational transfer of acyl chain. Through operating multivariate curve resolution-alternating least squares with factor analysis, instantaneous contribution of each active polymorph during the transition process was illustrated for displaying the progressive evolutions of functional groups. Calculated contributions reveal that the alpha phase of oleic acid initially is present at around -18 degrees C, but sharply grows up around 2.2 degrees C from the transformation of gamma phase and finally disappears at the melting point. On the other hand, the beta phase of oleic acid is sole self generation after melt even it embryonically appears at -2.2 degrees C. Such mathematical approach based on NIR spectroscopy and factor analysis calculation provides a volatile strategy in quantitatively exploring the transition processes of bioactive fatty acids; meanwhile, it maintains promising possibility for instantaneous quantifying each active polymorph of lipid materials. PMID- 29325695 TI - Investigation of the uterine structural changes in the experimental model with polycystic ovary syndrome and effects of vitamin D treatment: An ultrastructural and immunohistochemical study. AB - In this study, we aimed to investigate the structural changes seen in the endometrium in experimental PCOS rat model and the effects of vitamin D treatment on these changes at immunohistochemical and electron microscopic levels. 24 prepubertal female rats were divided into three groups. Two groups were injected with dehydroepiandrosterone and one of them was treated with 1,25(OH)2 D3 at the same time. The control group was injected with sesame oil. At the end of the 28th day, the blood samples were collected. Uterus tissues were prepared for light and electron microscopic examinations. Epithelial, stromal and endometrial thickness measurements were investigated. Immunohistochemical staining was applied against caspase-3 and Ki-67. Serum AMH and estradiol levels were higher in PCOS group compared to the control group. Serum progesterone levels were similar in all groups. Endometrial, epithelial and stromal thickness measurements were increased in PCOS group compared to the control group, and decreased in the vitamin D treatment group compared to the PCOS group. Light and electron microscopic results of PCOS group showed an increase in apoptosis and proliferation. In the PCOS group, immunohistochemical staining of caspase-3 and Ki-67 were found to be higher than in the control group, but stainings were decreased with vitamin D treatment compared to PCOS group. Structural changes observed in endometrium may be related to implantation problems seen in patients with PCOS. Our studies suggest that vitamin D therapy may be beneficial in these patients. PMID- 29325697 TI - Early Stable Sinus Rhythm Associated With Greater Success 5 Years After Surgical Ablation. AB - BACKGROUND: An important challenge in surgical ablation for atrial fibrillation (AF) is the scarcity of publications on credible predictors of long-term success in procedures performed with ablation tools that produce consistently reliable transmural lesions. We examined factors associated with 1-year success and no atrial arrhythmia (AA) recurrence during 1 to 5 years after surgical ablation for AF. METHODS: The study prospectively monitored 743 surgical ablation patients with complete rhythm follow-up at 12 months after the operation. No detected AA was defined as no known recurrence of AA, no cardioversions, and no catheter ablations at all available follow-up assessments. RESULTS: Patients were a mean age of 64.7 years, and 32% were women. Patients with no detected AA during the first year after surgical ablation were more likely to maintain sinus rhythm without recurrence during 1 to 5 years (74% vs 28%, p < 0.001) and to be in sinus rhythm off medication at 5 years (80% vs 53%, p < 0.001). Mixed-model logistic regression revealed that lower risk for AA recurrence during 1 to 5 years was associated with no detected AA during the first 12 months (odds ratio [OR], 0.11; p < 0.001) and surgeon experience with 50 or more cases (OR, 0.63; p = 0.043), whereas older age (OR, 1.03; p < 0.001) and longer preoperative AF duration (OR, 1.04; p = 0.043) were associated with greater risk for AA recurrence. CONCLUSIONS: Most patients with no detected AA throughout the first 12 months after surgical ablation continued to be recurrence free for 5 years. Younger age, shorter preoperative AF duration, and greater surgeon experience may be associated with more persistent surgical correction of AF. PMID- 29325696 TI - Urinary mRNA analysis of biomarkers to epithelial mesenchymal transition of renal allograft. AB - Renal allograft loss is most often a chronic process, irrespective of the mechanism at stake. In this prospective study, we studied the expression of epithelial to mesenchymal transition (EMT) markers vimentin and beta-catenin by immunohistochemistry in the surveillance biopsy and measured the mRNA encoding vimentin (VIM), CD45, GAPDH and uroplakin 1a (UPK) by quantitative PCR in urinary cells in 75 renal transplant patients. The aim is to establish a simple screening test for chronic renal allograft dysfunction. We found that the value of the mRNA of vimentin and CD45 relative to the uroplakin 1a (UPK) mRNA is correlated with the score in vimentin immunostaining in routine biopsies. These biomarkers could be used as a noninvasive tool to monitor the renal graft fibrogenesis. This test could be used for early detection of fibrotic diseases of the kidney transplant. PMID- 29325698 TI - What causes childhood stunting among children of San Vicente, Guatemala: Employing complimentary, system-analysis approaches. AB - Guatemala has the sixth worst stunting rate with 48% of children under five years of age classified as stunted according to World Health Organization standards. This study utilizes two different yet complimentary system-analysis approaches to analyze correlations among environmental and demographic variables, environmental enteric dysfunction (EED), and child height-for-age (stunting metric) in Guatemala. Two descriptive models constructed around applicable environmental and demographic factors on child height-for-age and EED were analyzed using Network Analysis (NA) and Structural Equation Modeling (SEM). Data from two populations of children between the age of three months and five years were used. The first population (n = 2103) was drawn from the Food for Peace Baseline Survey conducted by the US Agency for International Development (USAID) in 2012, and the second population (n = 372) was drawn from an independent survey conducted by the San Vicente Health Center in 2016. The results from the NA of the height-for-age model confirmed pathogen exposure, nutrition, and prenatal health as important, and the results from the NA of the EED model confirmed water source, water treatment, and type of sanitation as important. The results from the SEM of the height-for-age model confirmed a statistically significant correlation among child height-for-age and child-mother interaction (-0.092, p = 0.076) while the SEM of the EED model confirmed the statistically significant correlation among EED and type of water treatment (-0.115, p = 0.013). Our approach supports important efforts to understand the complex set of factors associated with child stunting among communities sharing similarities with San Vicente. PMID- 29325700 TI - 2017 reviewers. PMID- 29325699 TI - Co-delivery of tumor antigen and dual toll-like receptor ligands into dendritic cell by silicon microparticle enables efficient immunotherapy against melanoma. AB - Despite the importance and promise of cancer vaccines for broader prevention and treatment of cancer, limited clinical responses are observed, suggesting that key rational designs are required for inducing potent immune responses against cancer. Here we report a mesoporous silicon vector (MSV) as a multi-functional microparticle for formulating an efficient cancer vaccine composed of B16 melanoma derived-tyrosinase related protein 2 (TRP2) peptide and dual toll-like receptor (TLR) agonists. We demonstrated that MSV microparticles protected the peptide from rapid degradation for prolonged antigen presentation to immune cells. Moreover, MSV enabled co-delivery of two different TLR agonists [CpG oligonucleotide and monophosphoryl lipid A (MPLA)] along with TRP2 peptide into the same dendritic cell (DC), thus increasing the efficiency and capacity of DCs to induce potent TRP2-specifc CD8+ T cell responses against B16 melanoma. Furthermore, this MSV-based DC vaccine could significantly prolong the median survival of tumor-bearing mice by orchestrating effective host immune responses involving CD8+ T cells, CD4+ T cells and macrophages. Our study provides rational and potentially translational approach to develop durable and potent immunotherapy for patients with cancer by delivering various combinations of tumor antigens, neoantigens and innate immune agonists. PMID- 29325701 TI - Developmental cognitive neuroscience using latent change score models: A tutorial and applications. AB - Assessing and analysing individual differences in change over time is of central scientific importance to developmental neuroscience. However, the literature is based largely on cross-sectional comparisons, which reflect a variety of influences and cannot directly represent change. We advocate using latent change score (LCS) models in longitudinal samples as a statistical framework to tease apart the complex processes underlying lifespan development in brain and behaviour using longitudinal data. LCS models provide a flexible framework that naturally accommodates key developmental questions as model parameters and can even be used, with some limitations, in cases with only two measurement occasions. We illustrate the use of LCS models with two empirical examples. In a lifespan cognitive training study (COGITO, N = 204 (N = 32 imaging) on two waves) we observe correlated change in brain and behaviour in the context of a high intensity training intervention. In an adolescent development cohort (NSPN, N = 176, two waves) we find greater variability in cortical thinning in males than in females. To facilitate the adoption of LCS by the developmental community, we provide analysis code that can be adapted by other researchers and basic primers in two freely available SEM software packages (lavaan and Omeganyx). PMID- 29325703 TI - The prevalence and morphometric analysis of ossified superior transverse scapular ligaments in patients with rotator cuff tears. AB - BACKGROUND: The prevalence of ossified superior transverse scapular ligaments (OSTSLs) in rotator cuff tears (RCTs) has not yet been determined. The purposes of this study were to evaluate the prevalence of OSTSLs in RCTs and to investigate the correlation between OSTSL morphology and supraspinatus muscle atrophy. METHODS: We analyzed a total of 213 patients with RCTs for whom 3 dimensional (3D) computed tomography (CT) and magnetic resonance imaging were performed prior to arthroscopic procedures. The mean age of the patients was 59.73 +/- 8.43 years, and 103 patients were men. OSTSLs were identified based on 3D CT findings. The correlations between OSTSLs and age, sex, and RCT size were analyzed. The horizontal and vertical diameters, area, and circumference of the suprascapular foramen were measured. By use of the occupation ratio calculated from magnetic resonance imaging results, supraspinatus muscle atrophy was evaluated. RESULTS: Of 213 patients with RCTs, 22 (10.3%) had OSTSLs. OSTSLs were found at a rate of 15.5% (16 of 103) in men, higher than that in women (P = .016). The rate of OSTSLs increased with age (P = .003). RCT size was not correlated with the prevalence of OSTSLs. As the horizontal diameter and circumference of the suprascapular foramen increased, muscle atrophy progressed (P = .001 and P = .046, respectively). CONCLUSION: One of ten patients with RCTs had OSTSLs; the rate of OSTSLs was higher among men and increased with age. For patients with RCTs preparing to undergo arthroscopic superior transverse ligament resection, preoperatively identifying OSTSLs through 3D CT would be useful for the resection. PMID- 29325705 TI - Intra-test and test-retest reliability of exercise oximetry in arterial claudication. AB - BACKGROUND: Transcutaneous oxygen pressure (tcpO2) reliability is blunted by an unpredictable transcutaneous gradient through the skin. We hypothesized that the "Decrease from Rest of Oxygen pressure (DROP: subtraction of limb-changes from chest-changes from the respective starting values) would show a good to excellent reliability during Exercise -tcpO2 investigations. METHODS: In three different experiments we tested: The intra-test variability at the peripheral level (Experiment A: 32 patients, 16 at each location), at the chest level (Experiment B: 45 patients) and the test-retest reproducibility within 3 months (Experiment C: 67 patients). We calculated the intra-class coefficient of correlation (ICC) with 95% confidence interval [Lower/upper limit]. ICC between 0.60 and 0.749 indicate a good agreement. ICC above 0.750 indicates an excellent agreement. RESULTS: ICC values for DROP-min were 0.848 [0.723/0.935] at the buttock and 0.920 [0.846/0.967] at the calf levels, in experiment A; ICC were 0.873 [0.799/0.923] at the buttock and 0.898 [0.790/0.953] at the calf levels, in experiment B; 0.806 [0.716/0.871] at then buttock level (n = 67) and 0.807 [0.722/0.868] at the calf in experiment C. CONCLUSIONS: Intra-test and test retest reliability is excellent using the DROP calculation for exercise-tcpO2 investigations. PMID- 29325704 TI - Psychometrics of the Patient-Reported Outcomes Measurement Information System Physical Function instrument administered by computerized adaptive testing and the Disabilities of Arm, Shoulder and Hand in the orthopedic elbow patient population. AB - BACKGROUND: This study evaluated the psychometric properties of the Patient Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF) instrument administered through computerized adaptive testing (CAT) compared with the traditional full-length Disabilities of the Arm, Shoulder and Hand (DASH). METHODS: The PROMIS PF CAT and the DASH were administered to 1759 patients seeking care for elbow conditions. This study used Rasch partial credit modeling to analyze the instruments with item fit, internal reliability, response category thresholds, dimensionality, local independence, gender differential item functioning, and floor and ceiling effects. RESULTS: The PROMIS PF CAT and DASH had satisfactory item fit for all but 1 item on both measures. Internal reliabilities were high for both measures. Two items on the DASH and 4 items on the PF CAT showed nonordered category thresholds. Unidimensionality was adequate, and local independence was supported for both instruments. Gender bias was found for 4 items on the PF CAT and 12 items on the DASH. Both measures had adequate instrument targeting and satisfactory floor and ceiling effects. CONCLUSION: The PROMIS PF CAT and the DASH both showed sufficient unidimensionality, good item fit, and good local independence with the exception of high levels of gender item bias, particularly for the DASH. Further scale evaluation should address item bias and item response categories for these instruments. Overall, the PROMIS PF CAT is an effective outcome instrument to measure function in patients with elbow disorders that requires significantly fewer questions than the DASH. PMID- 29325706 TI - Contrast harmonic EUS for the prediction of pancreatic neuroendocrine tumor aggressiveness (with videos). AB - BACKGROUND AND AIMS: Contrast harmonic EUS (CH-EUS) has the ability to depict tumor microvasculature. Decreased microvascular density has been identified as a factor associated with tumor aggressiveness. We aimed to study the accuracy of CH EUS for the prediction of pancreatic neuroendocrine tumor (PNET) aggressiveness. METHODS: Between June 2009 and March 2015, all consecutive patients with histology-proven PNETs and CH-EUS examination were included. Nine endosonographers blindly analyzed all videos. CH-EUS tumor aggressiveness was defined as a heterogeneous enhancement at the early arterial phase. The final diagnosis of tumor aggressiveness was defined as follows: G3 tumors, morphologic and/or histologic findings of metastatic disease in G1/G2 tumors. Diagnostic values were calculated. Intratumoral microvascular density and fibrosis were assessed on pathologic specimens. RESULTS: Eighty-one tumors were included, of which 26 were aggressive (32.1%). In CH-EUS 35 tumors (43.2%) had a heterogeneous enhancement. The overall accuracy, sensitivity, specificity, positive predictive value, and negative predictive value of CH-EUS for the diagnosis of tumor aggressiveness were 86%, 96%, 82%, 71%, and 98%, respectively. The interobserver agreement among the 9 endosonographers was good (k = .66). The intraobserver agreement was excellent for the junior (kappa = .83) and senior (kappa = .82) endosonographers. Heterogeneous tumors at CH-EUS corresponded to fewer vascular and more fibrotic tumors (P < .01). CONCLUSIONS: CH-EUS is accurate in the prediction of PNET aggressiveness and could be a decision-making element in their management. PMID- 29325708 TI - Promising roles for pharmacists in addressing the U.S. opioid crisis. AB - Overdoses of prescription or illicit opioids claimed the lives of 116 Americans each day in 2016, and the crisis continues to escalate. As healthcare systems evolve to address the crisis, the potential of pharmacists to make a positive difference is significant. In addition to utilizing available prescription drug monitoring programs to help prevent diversion of opioids, practicing pharmacists can be alert for signs of opioid misuse by patients (e.g., multiple prescriptions from different physicians) as well as inappropriate prescribing or hazardous drug combinations that physicians may not be aware of (e.g., opioid analgesics combined with benzodiazepines). They can also supply patients with information on risks of opioids, proper storage and disposal of medications, and the harms (and illegality) of sharing medications with other people. Increasingly, pharmacies are sites of distribution of the opioid antagonist naloxone, which has been shown to save lives when made available to opioid users and their families or other potential bystanders to an overdose; and pharmacists can provide guidance about its use and even legal protections for bystanders to an overdose that customers may not be aware of. Pharmacists can also recommend addiction treatment to patients and be a resource for information on addiction treatment options in the community. As addiction treatment becomes more integrated with general healthcare, pharmacies are also increasingly dispensing medications like buprenorphine and, in the future, possibly methadone. Pharmacists in private research labs and at universities are helping to develop the next generation of addiction treatments and safer, non-addictive pain medications; they can also play a role in implementation research to enhance the delivery of addiction interventions and medications in pharmacy settings. Meanwhile, pharmacists in educational settings can promote improved education about the neurobiology and management of pain and its links to opioid misuse and addiction. PMID- 29325707 TI - Successful creation of pancreatic cancer organoids by means of EUS-guided fine needle biopsy sampling for personalized cancer treatment. AB - BACKGROUND AND AIMS: Pancreatic cancer organoids are tumor models of individualized human pancreatic ductal adenocarcinoma (PDA), created from surgical specimens and used for personalized treatment strategies. Unfortunately, most patients with PDA are not operative candidates. Creation of human PDA organoids at the time of initial tumor diagnosis is therefore critical. Our aim was to assess the feasibility of creating human PDA organoids by EUS fine-needle biopsy (EUS-FNB) sampling in patients with PDA. METHODS: In this prospective clinical trial in patients referred to evaluate a pancreatic mass, EUS-FNA was performed for initial onsite diagnosis. Two additional needle passes were performed with a 22-gauge FNB needle for organoid creation. Primary outcome was successful isolation of organoids within 2 weeks of EUS-FNB sampling (P0, no passages), confirmed by organoid morphology and positive genotyping. RESULTS: Thirty-seven patients with 38 PDA tumors were enrolled. Successful isolation of organoids (P0) was achieved in 33 of 38 tumors (87%). Establishment of PDA organoid lines for >=5 passages of growth (P5, five passages) was reached in 25 of 38 tumors (66%). In the single patient with successful P5 FNB sampling-derived and P5 surgically derived organoids, there was identical matching of specimens. There were no serious adverse events. Two patients developed bleeding at the EUS FNB puncture site requiring hemostasis clips. CONCLUSIONS: Pancreatic cancer organoids can be successfully and rapidly created by means of EUS-FNB sampling using a 22-gauge needle at the time of initial diagnosis. Successful organoid generation is essential for precision medicine in patients with pancreatic cancer in whom most are not surgically resectable. (Clinical trial registration number: NCT03140592.). PMID- 29325709 TI - Acute hyperoxia induces systemic responses with no major changes in peripheral tissues in the Senegalese sole (Solea senegalensis Kaup, 1858). AB - Senegalese sole Solea senegalensis is currently farmed in recirculation aquaculture systems that often involve water re-oxygenation, which in turn may cause acute or prolonged hyperoxia exposures. In order to understand the impact of acute hyperoxia on the fish immune system and peripheral tissues such as gills and gut, Senegalese sole juveniles (30.05 +/- 1.72 g) were exposed to normoxia (100% O2sat) as control and two hyperoxic conditions (150 and 200% O2sat) and sampled at 4 and 24 h. Fish haematological profile, total and differential blood cell counts and plasma immune parameters were analysed. Histomorphology and immunofluorescence analyses of gills and intestine were performed, respectively, whereas head-kidney samples were used for assessing the expression of immune related genes. Results indicate that acute hyperoxia exposure may reduce fish erythrocyte and haemoglobin levels. Moreover, decreases in total leucocytes numbers, circulating lymphocytes, monocytes, alternative complement pathway activity and expression of cyclooxygenase-2 were observed in fish exposed to hyperoxia. In contrast, hyperoxia did not induce major effects on gill histomorphology nor in the protein content of ion and glucose cotransporters as well as a macrophage marker (V-ATPase) in the intestine. Although the activation of humoral mechanisms and immune-related genes were not dramatically affected by acute hyperoxia, the compromised immune cell status and the reduction of some inflammatory indicators are issues to consider under acute hyperoxia conditions. PMID- 29325710 TI - Wnt5b regulates apoptosis in Litopenaeus vannamei against white spot syndrome virus. AB - The Wnt signaling mediated by Wnt proteins that orchestrate and influence a myriad of cellular processes, such as cell proliferation, differentiation, tumorigenesis, apoptosis, and participation in immune defense during microbe infection. Wnt5b is one of the Wnt signaling molecules that initiate the cascade. In this study, we cloned and characterized a Wnt5b homolog from Litopenaeus vannamei designed as LvWnt5b. The full length of LvWnt5b transcript was 1726 bp with an 1107 bp open reading frame that encoded a 368 aa protein, which contained 24 discontinuous and highly conserved cysteine. Real-time quantitative PCR showed that the transcriptional level of LvWnt5b was down-regulated when infected with white spot syndrome virus (WSSV). Knock-down of LvWnt5b resulted in inhibition of the transcriptional level of WSSV gene ie1, indicating that LvWnt5b mediated signaling pathway may play an important role in defense against WSSV infection. When LvWnt5b was silenced, caspase3/7 activity in hemocytes was increased significantly, and the transcription of viral gene was decreased as well. Moreover, overexpression of LvWnt5b in HEK293T cells led to inhibition of caspase3/7 activity, which further proved the role of LvWnt5b in restraining apoptosis. The study showed that the shrimp may decrease the expression of LvWnt5b initiatively to act as an immune defense mechanism against WSSV infection via promoting apoptosis. It will be helpful for understanding the function of Wnt signaling pathway in virus invasion and host defense. PMID- 29325711 TI - Effects of cortisol and lipopolysaccharide on expression of select growth-, stress- and immune-related genes in rainbow trout liver. AB - Many studies have shown that stress-induced cortisol levels negatively influence growth and immunity in finfish. Despite this knowledge, few studies have assessed the direct effects of cortisol on liver immune function. Using real-time PCR, the expression of three cortisol-responsive genes (GR: glucocorticoid receptor, IGF 1: insulin-like growth factor-I and SOCS-1: suppressor of cytokine signaling-I), genes involved with innate and adaptive immunity (IL-1beta: interleukin-1 beta, IgM: immunoglobin-M and Lyz: lysozyme), and liver-specific antimicrobial peptides (hepcidin and LEAP-2A: liver-expressed antimicrobial peptide-2A) was studied in vitro using rainbow trout liver slices. The abundances of GR, SOCS-1 and IGF-1 mRNAs were suppressed by cortisol treatment. Abundance of IL-1beta mRNA was upregulated by LPS and suppressed by cortisol treatment in a time-dependent manner. While abundance of IgM mRNA was suppressed by cortisol treatment and stimulated by LPS, there were no effects of cortisol or LPS on abundance of Lyz mRNA. Abundance of hepcidin and LEAP-2A mRNA levels were suppressed by cortisol treatment and stimulated by LPS. These results demonstrate that cortisol directly suppresses abundance of GR, IGF-1, IL-1beta, IgM, hepcidin, LEAP-2A and SOCS-1 mRNA transcripts in the rainbow trout liver. We report for the first time, a suppressive effect of cortisol (within 8 h of treatment) on hepcidin and LEAP-2A mRNAs in rainbow trout liver, which suggests that acute stress may negatively affect liver immune function in rainbow trout. PMID- 29325712 TI - A novel GATA-like zinc finger transcription factor involving in hematopoiesis of Eriocheir sinensis. AB - GATA transcription factor is a family of DNA-binding proteins that can recognize and bind to sequence of (A/T) GATA (A/G). In the present study, a GATA-like protein (named as EsGLP) was characterized from Eriocheir sinensis, including an 834 bp full length open reading frame of EsGLP, encoding a polypeptide of 277 amino acids. The deduced amino acid sequence of EsGLP contained one conserved GATA-type zinc finger of the form Cys-X2-Cys-X17-Cys-X2-Cys, with four cysteine sites. The EsGLP mRNA transcripts were mainly detected in the hematopoietic tissue, hepatopancreas and gonad. The recombinant EsGLP protein was prepared for the antibody production. The EsGLP protein was mainly distributed in the edge of lobules in the HPT and the cytoplasm of hemocytes. The mRNA transcripts of EsGLP in hemocytes were significantly decreased at 24 h (0.39-fold and 0.27-fold, p < .05) and 48 h (0.35-fold and 0.16-fold, p < .05) after LPS and Aeromonas hydrophila stimulation, respectively. However, one peak of EsGLP mRNA transcripts were recorded at 24 h (8.71-fold, p < .05) in HPT after A. hydrophila stimulation. The expression level of EsGLP mRNA in HPT was significantly up regulated at 2 h, 2.5 h and 9 h (41.74-fold, 45.38-fold and 26.07-fold, p < .05) after exsanguination stimulation. When EsGLP gene expression was inhibited by the injection of double-stranded RNA, both the total hemocytes counts and the rate of EdU-positive hemocytes were significantly decreased (0.32-fold and 0.56-fold compared to that in control group, p < .05). All these results suggested that EsGLP was an important regulatory factor in E. sinensis which involved in the hemocytes generation and the immune response against invading pathogens. PMID- 29325713 TI - The interaction of TAK1 and TAB1 enhances LPS-induced cytokine release via modulating NF-kappaB activation (Larimichthys crocea). AB - Transforming growth factor-beta-activating kinase 1 (TAK1) is triggered by foreign pathogenic infection and involves in proinflammatory response through the activation of nuclear factor-kappaB (NF-kappaB), which is specifically regulated by TAK1-binding protein 1 (TAB1). However, the expression and regulatory characterizations of TAK1 and TAB1 in fish immune response remain largely unknown. In the present study, the cDNA sequences of TAK1 (LcTAK1) and TAB1 (LcTAB1) were identified from large yellow croaker, Larimichthys crocea. The open reading frame (ORF) of LcTAK1 was 1725 bp in length, encoding 574 amino acids. The putative LcTAK1 protein contained a protein kinase domain and a C-terminal coiled-coil region. The ORF of LcTAB1 was 1518 bp encoding 505 amino acids. And a typical PP2Cc domain and a conserved sequence motif (PYVDFSQFYLLWGSDH) at C terminal were identified in the predicted LcTAB1 protein. Multiple alignments showed that LcTAK1 shared 74.0-97.9% and LcTAB1 shared 37.4-95.8% sequence identities with TAK1 and TAB1 proteins from other species, respectively. Quantitative PCR analysis indicated that both LcTAK1 and LcTAB1 were broadly expressed in all examined tissues, with the most predominant expression in brain and the weakest expression in muscle, respectively. Subcellular localization revealed that both LcTAK1 and LcTAB1 expressed in the cytoplasm. In addition, LcTAK1 transcripts increased significantly in LCK cells after flagellin, LPS and poly I:C stimulation while LcTAB1 enhanced greatly after LPS and poly I:C challenge. Furthermore, the roles of them in NF-kappaB activation were investigated by overexpression of LcTAK1 and LcTAB1 in HEK293T cells. Our results revealed that NF-kappaB luciferase promoter expression could not be induced by overexpression of LcTAK1 or LcTAB1 alone, however, it could be induced by co expression of LcTAK1 and LcTAB1 together. Moreover, the roles of LcTAK1 and LcTAB1 in immune response analysis showed that NF-kappaB activation enhanced significantly in co-overexpressed HEK293T cells following LPS and poly I:C stimulation. However, the expression levels of tumor necrosis factor (TNF)-alpha, Interleukin-6 (IL-6) and IL-8 were induced only after LPS challenge (p < .05). These findings suggested that the TAK1-TAB1 complex of large yellow croaker might play an important role in pro-inflammatory cytokines and chemokine release after LPS stimulation via inducing NF-kappaB activation. PMID- 29325714 TI - Aging-related SUMOylation pattern in the cortex and blood plasma of wild type mice. AB - Protein activities and mechanisms related to aging has become a growing interest nowadays. Since SUMOylation is implicated in several cellular processes, its investigation related to senescence, aging and frailty is of high interest. In our study, wild type mice cortical lysates, synaptosomes and plasma have been processed to evaluate SUMOylation and SUMO machinery expression (Ubc9 and SENP1 enzymes) profile at different ages. In cortical lysates, SUMO-1ylation reached a peak at 6 months followed by a decrease; while in synaptosomes, it progressively increased till 18 months. Regarding SUMO-2/3ylation, it was observed a similar trend in both lysate and synaptosomes where the protein conjugation was the highest at 6 months but interestingly decreased afterwards. In addition, Ubc9 and SENP1 enzymes showed a linear increased expression level in both brain preparations. Since SUMOylation process is ubiquitously expressed, we were interested to identify SUMO conjugation at peripheral level too. Thus, SUMO 1ylation and SUMO-2/3ylation expression level has been detected in mouse plasma that revealed an inverted U-shaped curve trend during mice lifespan. Surprisingly, SENP1 enzyme was not present in the plasma while Ubc9 enzyme reached a plateau at 6 months and was highly expressed till 18 months. In conclusion, our data indicates that SUMOylation is highly correlated with age related processes which indisputably need to be considered for further investigation. PMID- 29325715 TI - Orexin knockout mice exhibit impaired spatial working memory. AB - Orexins play a crucial role in the maintenance of arousal and are involved in the modulation of diverse physiological process, including cognitive function. Recent data have suggested that orexins are involved in learning and memory processes. The purpose of this study was to assess the effects of orexin deficiency on working memory. A delayed non-matching-to-place T-maze task was used to evaluate spatial working memory in mice lacking orexin prepro-peptide (orexin knockout; KO) and wild-type controls. We demonstrated that the number of correct choices in the orexin KO mice became lower than that of the controls over training. In an object exploration task, the controls explored the displaced object more than the mutants did, whereas this difference was not observed for the nondisplaced objects in either group. The orexin KO mice showed locomotor activity comparable to the control mice in terms of total distance traveled across training in both the object exploration task and the open field test. These findings indicate that the orexin system plays an important role in working memory of spatial cues. PMID- 29325716 TI - Corrigendum to "Novel approaches to microbial enhancement of oil recovery" [J. Biotechnol. 266 (2018) 118-123]. PMID- 29325717 TI - Factors related to older patients' fear of falling during the first mobilization after total knee replacement and total hip replacement. AB - The aim of this study was to determine fear of falling in the first mobilization and affecting factors in older patients. The study had a descriptive and cross sectional design. Data were collected in Izmir, Turkey between February 2014 and March 2016. The sample included 204 older patients undergoing joint replacement surgery. Fifty-seven-point four percent and 42.6% of the patients had total hip and knee replacement respectively. 42.2% of the patients had a severe fear of falling when they were first mobilized. There was a statistically significant difference between fear of falling in the first mobilization and the mean pain severity. In addition, the difference between fear of falling and the mean anxiety level was statistically significant. Pain and anxiety are important factors contributing to fear of falling in mobilization. The results of the study can help develop multidimensional strategies for reducing fear of falling in older people after joint replacement. PMID- 29325718 TI - Using story and art to improve education for older patients and their caregivers. PMID- 29325719 TI - Is that really worth it - assuring value. PMID- 29325720 TI - Development of pancreatic machine perfusion: translational steps from porcine to human models. AB - BACKGROUND: Hypothermic machine perfusion (HMP) is increasingly being used for extended criteria kidney grafts. Pancreatic HMP is challenging because physiologically the pancreas is a low-flow organ susceptible to edema. We report the successful development of preclinical HMP models using porcine pancreases, as well as human pancreases unsuitable for clinical transplantation. METHODS: Ten porcine pancreases were used in the development of these perfusion models. Pancreases underwent 24 h of static cold storage (SCS, n = 3) and then viability assessment on an isolated oxygenated normothermic reperfusion (NRP) circuit or 24 h SCS, 5 h of HMP, and then NRP (SCS-HMP, n = 3). Human pancreases (n = 3) were used in the development of a preclinical model. RESULTS: Porcine HMP demonstrated stable perfusion indices at low pressures, with a weight gain of between 15.3% and 27.6%. During NRP, SCS-HMP pancreases demonstrated stable perfusion flow indices (PFIs) throughout reperfusion (area under the curve was in the range of 0.49-2.04 mL/min/100 g/mm Hg), whereas SCS-only pancreases had deteriorating PFI with a decline of between 19% and 46%. Human pancreas models demonstrated stable PFI between 0.18 and 0.69 mL/min/100 g/mm Hg during HMP with weight gain of between 3.9% and 14.7%. NRP perfusion in porcine and human models was stable, and functional assessment via insulin secretion demonstrated beta cell viability. Exocrine function was intact with production of pancreatic secretions only in human grafts. CONCLUSIONS: Application of machine perfusion in preclinical porcine and human pancreas models is feasible and successful; the development of these translational models could be beneficial in improving pancreas preservation before transplantation and allowing organ viability assessment and optimization. PMID- 29325721 TI - Letter to the Editor concerning the article "Ex vivo heart perfusion after cardiocirculatory death; a porcine model". PMID- 29325724 TI - Rheumatoid Arthritis, Disease Modifying Agents, and Periprosthetic Joint Infection: What Does a Joint Surgeon Need to Know? AB - The incidence of periprosthetic joint infection (PJI) among patients with rheumatoid arthritis (RA) is 1.6* greater than in patients undergoing the same procedure for osteoarthritis. This higher risk "may" be due to the immunosuppressive therapies for RA patients including corticosteroids, such as prednisone, and disease-modifying antirheumatic drugs (DMARDs), such as methotrexate. There is a debate about the role of DMARDs in increasing the incidence of subsequent PJI. Studies show conflicting results, with some demonstrating no significant increase in the rates of PJI and some finding otherwise. The International Consensus Meeting on PJI recommended that DMARDs should be halted prior to an elective total joint arthroplasty based on their half-life. Moreover, the International Consensus Meeting stated that cessation of immunosuppressant medications should be performed in consultation with and under the direction of the treating physician. In this review, we aimed to provide an introduction to the available treatment options and cover the recommendations on the treatment protocols for RA patients who undergo elective total joint arthroplasty. PMID- 29325722 TI - Effects of siRNA-dependent knock-down of cardiolipin synthase and tafazzin on mitochondria and proliferation of glioma cells. AB - The mitochondrial phospholipid cardiolipin (CL) has been implicated with mitochondrial morphology, function, and cell proliferation. Changes in CL are often paralleled by changes in the lipid environment of mitochondria that may contribute to mitochondrial function and proliferation. This study aimed to separate the effects of CL content and CL composition from cellular free fatty acid distribution on bioenergetics and proliferation in C6 glioma cells. To this end, cardiolipin synthase and the CL remodelling enzyme, tafazzin, were knocked down by siRNA in C6 cells. After 72 h of cultivation, we analysed CL composition by means of LC/MS/MS, distribution of cellular fatty acids by means of gas chromatography, and determined oxygen consumption and proliferation. Knock-down of cardiolipin synthase affected the cellular CL content in the presence of linoleic acid (LA) in the culture medium. Knock-down of tafazzin had no consequence with respect to the pattern of cellular fatty acids but caused a decrease in cell proliferation. It significantly changed the distribution of molecular CL species, increased CL content, decreased oxygen consumption, and decreased cell proliferation when cultured in the presence of linoleic acid (LA). The addition of linoleic acid to the culture medium caused significant changes in the pattern of cellular fatty acids and the composition of molecular CL species. These data suggest that tafazzin is required for efficient bioenergetics and for proliferation of glioma cells. Supplementation of fatty acids can be a powerful tool to direct specific changes in these parameters. PMID- 29325723 TI - Double function hydroperoxide lyases/epoxyalcohol synthases (CYP74C) of higher plants: identification and conversion into allene oxide synthases by site directed mutagenesis. AB - The CYP74C subfamily of fatty acid hydroperoxide transforming enzymes includes hydroperoxide lyases (HPLs) and allene oxide synthases (AOSs). This work reports a new facet of the putative CYP74C HPLs. Initially, we found that the recombinant CYP74C13_MT (Medicago truncatula) behaved predominantly as the epoxyalcohol synthase (EAS) towards the 9(S)-hydroperoxide of linoleic acid. At the same time, the CYP74C13_MT mostly possessed the HPL activity towards the 13(S) hydroperoxides of linoleic and alpha-linolenic acids. To verify whether this dualistic behaviour of CYP74C13_MT is occasional or typical, we also examined five similar putative HPLs (CYP74C). These were CYP74C4_ST (Solanum tuberosum), CYP74C2 (Cucumis melo), CYP74C1_CS and CYP74C31 (both of Cucumis sativus), and CYP74C13_GM (Glycine max). All tested enzymes behaved predominantly as EAS toward 9-hydroperoxide of linoleic acid. Oxiranyl carbinols such as (9S,10S,11S,12Z) 9,10-epoxy-11-hydroxy-12-octadecenoic acids were the major EAS products. Besides, the CYP74C31 possessed an additional minor 9-AOS activity. The mutant forms of CYP74C13_MT, CYP74C1_CS, and CYP74C31 with substitutions at the catalytically essential domains, namely the "hydroperoxide-binding domain" (I-helix), or the SRS-1 domain near the N-terminus, showed strong AOS activity. These HPLs to AOSs conversions were observed for the first time. Until now a large part of CYP74C enzymes has been considered as 9/13-HPLs. Notwithstanding, these results show that all studied putative CYP74C HPLs are in fact the versatile HPL/EASs that can be effortlessly mutated into specific AOSs. PMID- 29325725 TI - Who Goes to Inpatient Rehabilitation or Skilled Nursing Facilities Unexpectedly Following Total Knee Arthroplasty? AB - BACKGROUND: Inpatient rehabilitation facilities (IRFs) and skilled nursing facilities (SNFs) represent a significant portion of post-operative expenses of bundled payments for total knee arthroplasty (TKA). Although many surgeons no longer routinely send patients to IRFs or SNFs, some patients are unable to be discharged directly home. This study identified patient factors for discharge to post-acute care facilities with an institutional protocol of discharging TKA patients home. METHODS: A retrospective review of patients undergoing primary unilateral TKA at a single institution from 2012 to 2017 was performed. All surgeons discharged patients home as a routine protocol. An electronic query followed by manual review identified discharge disposition, demographic factors, co-morbidities, and other patient factors. In total, 2281 patients were identified, with 9.6% discharged to SNFs or IRFs and 90.4% discharged home. Univariate and multivariate analyses were conducted to create 2 predictive models for patient discharge: pre-operative visit and hospital course. RESULTS: Among 43 variables studied, 6 were found to be significant pre-operative risk factors for a discharge disposition other than home. In descending order, age 75 or greater, female, non-Caucasian race, Medicare status, history of depression, and Charlson Comorbidity Index were predictors for patients going to IRFs. In addition, any in hospital complications led to a higher likelihood of being discharged to IRFs and SNFs. Both models had excellent predictive assessments with area under curve values of 0.79 and 0.80 for pre-operative visit and hospital course. CONCLUSION: This study identifies pre-operative and in-hospital factors that predispose patients to non-routine discharges, which allow surgeons to better predict patient post-operative disposition. PMID- 29325726 TI - Quality of life disparities between persons with schizophrenia and their professional caregivers: Network analysis in a National Cohort. AB - BACKGROUND: Disparities between mental health patients and their professional caregivers in quality of life appraisals have been identified, however, the structure that such disparities assume is unknown. AIMS: To examine the network structure of quality of life appraisals and disparities using network analysis. METHODS: Participants were 1639 persons with schizophrenia using psychiatric rehabilitation services and their primary professional caregivers (N=582). Quality of life for persons with schizophrenia was measured based on an abbreviated version of the Manchester Short Assessment of Quality of Life. Appraisals were made self-reported and by professional caregivers. Disparities scores between the aforementioned were computed. Network analysis was performed on all quality of life appraisals. Sensitivity analyses were conducted. RESULTS: The self-appraised network significantly (p<0.05) differed by network strength compared to the caregiver-appraised network. Self-appraised network communities (clusters of quality of life items) were health conditions and socioeconomic system, whereas caregiver-appraised network communities were social activities, and combined socioeconomic and health conditions. Strength centrality was highest for self-appraised social status and for caregiver-appraised residential status (Z=1.63, Z=1.12, respectively). The disparity scores network clustered into two communities: social relations and combined financial and health conditions. The most central appraisal disparities were in social status. CONCLUSIONS: Quality of life differed when self-appraised by persons with schizophrenia compared to when appraised by their professional caregivers, yet the salient role of social relations was shared. The latter may be an initial focus of discussion by persons with schizophrenia and their caregivers. PMID- 29325728 TI - Myo-inositol lowers the risk of developing gestational diabetic mellitus in pregnancies: A systematic review and meta-analysis of randomized controlled trials with trial sequential analysis. AB - AIMS: to explore the potential benefit of myo-inositol on pregnant women with high risk of developing gestational diabetes mellitus (GDM). METHODS: Pubmed, Embase, and Cochrane library were systematically searched for randomized controlled trials (RCTs) comparing myo-inositol with placebo for pregnant women with risk factors of GDM. Primary outcome were the incidence of GDM and birth weight. Secondary outcomes included fasting, 1h, and 2h oral glucose tolerance test (OGTT), and complications. Trial sequential analysis (TSA) was performed on primary outcomes to confirm the pooled results. Number needed to treat (NNT) was calculated to show the efficacy of myo-inositol supplement. RESULTS: Four RCTs with 586 patients were included. Compared with placebo, patients with myo inositol supplement had significantly lower the risk of developing GDM (RR=0.44, 95% CI [0.32, 0.62], P<0.0001) without heterogeneity (I2=0%, P=0.99), which was confirmed by TSA. NNT was 6.2 and rounded to 7. Myo-inositol did not significantly decrease birth weight (60.60g, 95% CI [-177.21, 56.02], P=0.31) with significant heterogeneity (I2=52%, P=0.12), but was not confirmed by TSA. Myo-inositol supplement was related to significantly lower fasting, 1h, and 2h OGTT value and the incidence of pre-term delivery. Difference was not significant between myo-inositol and placebo regarding incidence of other complications. CONCLUSION: Myo-inositol is related to lower incidence of GDM, as well as fasting, 1h, and 2h OGTT value, in pregnant women with high risk of this condition. Myo-inositol might not be related to a lower birth weight, which needs further confirmation. PMID- 29325727 TI - Low-neurotoxicity anesthesia. PMID- 29325729 TI - Amatoxin-Containing Mushroom Poisonings: Species, Toxidromes, Treatments, and Outcomes. AB - Amatoxins are produced primarily by 3 species of mushrooms: Amanita, Lepiota, and Galerina. Because amatoxin poisonings are increasing, the objective of this review was to identify all amatoxin-containing mushroom species, present a toxidromic approach to earlier diagnoses, and compare the efficacies and outcomes of therapies. To meet these objectives, Internet search engines were queried with keywords to select peer-reviewed scientific articles on amatoxin-containing mushroom poisoning and management. Descriptive epidemiological analyses have documented that most mushroom poisonings are caused by unknown mushrooms, and most fatal mushroom poisonings are caused by amatoxin-containing mushrooms. Amanita species cause more fatal mushroom poisonings than other amatoxin containing species, such as Galerina and Lepiota. Amanita phalloides is responsible for most fatalities, followed by Amanita virosa and Amanita verna. The most frequently reported fatal Lepiota ingestions are due to Lepiota brunneoincarnata, and the most frequently reported fatal Galerina species ingestions are due to Galerina marginata. With the exception of liver transplantation, the current treatment strategies for amatoxin poisoning are all supportive and have not been subjected to rigorous efficacy testing in randomized controlled trials. All patients with symptoms of late-appearing gastrointestinal toxicity with or without false recovery or quiescent periods preceding acute liver insufficiency should be referred to centers providing liver transplantation. Patients with amatoxin-induced acute liver insufficiency that does not progress to liver failure will have a more favorable survival profile with supportive care than patients with amatoxin-induced acute liver failure, about half of whom will require liver transplantation. PMID- 29325730 TI - Use of cardiovascular polypills for the secondary prevention of cerebrovascular disease. AB - INTRODUCTION: There is little control of cardiovascular (CV) risk factors in secondary prevention after an ischaemic stroke, in part due to a lack of adherence to treatment. The CV polypill may contribute to proper treatment adherence, which is necessary for CV disease prevention. This study aimed to establish how and in what cases the CV polypill should be administered. METHODS: A group of 8 neurologists drafted consensus recommendations using structured brainstorming and based on their experience and a literature review. RESULTS: These recommendations are based on the opinion of the participating experts. The use of the CV polypill is beneficial for patients, healthcare professionals, and the health system. Its use is most appropriate for atherothrombotic stroke, lacunar stroke, stroke associated with cognitive impairment, cryptogenic stroke with CV risk factors, and silent cerebrovascular disease. It is the preferred treatment in cases of suspected poor adherence, polymedicated patients, elderly people, patients with polyvascular disease or severe atherothrombosis, young patients in active work, and patients who express a preference for the CV polypill. Administration options include switching from individual drugs to the CV polypill, starting treatment with the CV polypill in the acute phase in particular cases, use in patients receiving another statin or an angiotensin ii receptor antagonist, or de novo use if there is suspicion of poor adherence. Nevertheless, use of the CV polypill requires follow-up on the achievement of the therapeutic objectives to make dose adjustments. CONCLUSIONS: This document is the first to establish recommendations for the use of the CV polypill in cerebrovascular disease, beyond its advantages in terms of treatment adherence. PMID- 29325731 TI - Pharmacogenomic Testing in Child and Adolescent Psychiatry: An Evidence-Based Review. AB - Significant advances have been made in the application of pharmacogenomic testing for the treatment of patients with psychiatric disorders. Over the past decade, a number of studies have evaluated the utility of pharmacogenomic testing in pediatric patients with psychiatric disorders. The evidence base for pharmacogenomic testing in youth with depressive and anxiety disorders as well as attention/deficit hyperactivity disorder (ADHD) is reviewed in this article. General pharmacogenomic principles are summarized and functional polymorphisms in P450 enzymes (and associated metabolizer phenotypes), the serotonin transporter promoter polymorphisms, serotonin 2A receptor genes (e.g., HT2AR) and catecholamine pathway genes (e.g., COMT) are reviewed. These commonly tested pharmacogenomic markers are discussed with regard to studies of drug levels, efficacy and side effects. The translation of pharmacogenomics to individualized/precision medicine in pediatric patients with ADHD, anxiety and depressive disorders has accelerated; however, its application remains challenging given that there are numerous divergent pathways between medication/medication dose and clinical response and side effects. Nonetheless, by leveraging variations in individual genes that may be relevant to medication metabolism or medication target engagement, pharmacogenomic testing may have a role in predicting treatment response, side effects and medication selection in youth with ADHD, depressive and anxiety disorders. PMID- 29325732 TI - Onchocerciasis associated epilepsy: An important neglected public health problem. PMID- 29325733 TI - Associations of GBP2 gene copy number variations with growth traits and transcriptional expression in Chinese cattle. AB - Copy number variations (CNVs) recently have been recognized as another important genetic variability followed single nucleotide polymorphisms (SNPs). The guanylate binding protein 2 (GBP2) gene plays an important role in cell proliferation. This study was performed to determine the presence of GBP2 CNV (relative to Angus cattle) in 466 individuals representing six main cattle breeds from China, identify its relationship with growth, and explore the biological effects of gene expression. There were two CNV regions in the GBP2 gene, for three types, CNV1 loss type (relative to Angus cattle) was more frequent in XN than other breeds, and CNV2 loss type (relative to Angus cattle) was more frequent in XN and CDM than other breeds. Though the GBP2 gene copy number presented no correlation with the transcriptional expression of JX (P > .05), but the transcriptional expression in heart is higher than other tissues, and the copy number in muscles and fat of JX is higher than others breeds. Statistical analysis revealed that the GBP2 gene CNV1 and CNV2 were significantly associated with growth traits (P < .05). In conclusion, this research established the correlations between CNVs of GBP2 gene and growth traits in different cattle breeds, and our results suggested that the CNVs in GBP2 gene may be considered markers for the molecular breeding of Chinese beef cattle. PMID- 29325735 TI - Whole transcriptome analysis reveals potential novel mechanisms of low-level linezolid resistance in Enterococcus faecalis. AB - Linezolid is an oxazolidinone antibiotic commonly used to treat serious infections caused by vancomycin-resistant enterococcus. Recently, low-level linezolid resistant Enterococcus faecalis strains have emerged worldwide, but the resistant mechanisms remain undefined. Whole-transcriptome profiling was performed on an E. faecalis strain P10748 with low-level linezolid resistance in comparison with a linezolid-susceptible strain 3138 and the standard control strain ATCC29212. The functions of differentially expressed genes (DEGs) were predicted, with some DEGs potentially involved in drug resistance were validated by PCR and quantitative PCR (qPCR). RNA-Seq on three E. faecalis strains generated 1920 unigenes, with 98% of them assigned to various function groups. A total of 150 DEGs were identified in the linezolid resistant strain P10748 compared to the linezolid susceptible strains 3138 and ATCC29212. Functional analysis indicated a significant transcriptomic shift to membrane transportation and biofilm formation in strain P10748, with three significantly up-regulated DEGs predicted to be associated with drug resistance through active efflux pumps and biofilm formation. The existence of these three DEGs was further confirmed by PCR and qPCR. The significant upregulation of genes associated with efflux pumps and biofilm formation in the linezolid resistant strain suggests their roles in low-level resistance to linezolid in E. faecalis. PMID- 29325734 TI - Fat mass and obesity-associated gene rs9939609 polymorphism is a potential biomarker of recurrent venous thromboembolism in male but not in female patients. AB - Multiple genetic variations have been identified in FTO (fat mass and obesity associated) gene. Among them, FTO rs9939609 polymorphism is shown to be associated with the risk of primary venous thromboembolism (VTE). However, its role in recurrent VTE is not known. The aim of our study was to investigate the association between FTO rs9939609 polymorphism and the risk of VTE recurrence in a prospective follow-up study in both male and female patients. FTO rs9939609 polymorphism (T/A) was analyzed in the Malmo thrombophilia study (MATS, followed for ~10 years) by using TaqMan PCR. MATS patients (n = 1050) were followed from the discontinuation of anticoagulant treatment until diagnosis of VTE recurrence or the end of follow-up. A total of 126 patients (12%) had VTE recurrence during follow-up. Cox regression analyses showed that sex modified the potential effect of FTO rs9939609 polymorphism on VTE recurrence. Male patients with the AA genotype for the FTO rs9939609 polymorphism had significantly higher risk of VTE recurrence as compared to the TT or AT genotypes (univariate hazard ratio [HR] = 2.05, 95% confidence interval [CI] = 1.2-3.5, P = 0.009 and adjusted HR = 2.03, 95% CI 1.2-3.6, P = 0.013). There was no association between FTO rs9939609 polymorphism and VTE recurrence in female patients. In conclusion, our results show that FTO rs9939609 polymorphism in recurrent VTE may differ according to gender and FTO polymorphism may predict VTE recurrence in male patients. PMID- 29325736 TI - Differential association of DENND1A genetic variants with polycystic ovary syndrome in Tunisian but not Bahraini Arab women. AB - BACKGROUND AND AIM: Polycystic ovary syndrome (PCOS) is a common endocrine disorder, and results from interaction between modifiable and non-modifiable factors, including genetic predisposition. Previous genome-wide association studies and meta-analysis identified DENND1A as PCOS susceptibility locus in some, but not all populations. We investigated whether the association of DENND1A gene variants with PCOS was similar between Tunisian and Bahraini Arab women. SUBJECTS AND METHODS: This was retrospective case-control study. Study subjects comprised 320 women with PCOS, and 446 age-and ethnically-matched control women. Genotyping of DENND1A rs10818854, rs2479106, and rs10986105 variants was done by real-time PCR. RESULTS: Minor allele frequency of rs10818854 and rs10986105 DENND1A variants were significantly higher among women with PCOS. Setting homozygous wild-type genotype carrier as reference, rs10818854 and rs10986105 were associated with increased risk of PCOS, which persisted after controlling for key covariates, while reduced PCOS risk was seen with only rs2479106 under the additive model. This assigned PCOS susceptibility and protective nature to these genotypes, respectively. Both rs10818854 and rs10986105 were positively associated with HOMA-IR and AMH in women with PCOS. Haploview analysis revealed limited linkage disequilibrium between the tested DENND1A variants. Extensive diversity in haplotypes assignment was seen, with most haplotypes (99.5%) captured by 5 haplotypes. Taking GAT haplotype as reference, AAG, and GAG haplotypes were positively, while GAT haplotype was negatively associated with PCOS. CONCLUSION: The association of DENND1A rs10818854 and rs10986105 variants with PCOS in Tunisian but not Bahraini women confirms the dependence of this association on the ethnic/racial origin of study subjects. PMID- 29325737 TI - Reliability and validity of the Chinese version neuropathic pain symptom inventory in patients with colorectal cancer. AB - BACKGROUND/PURPOSE: Chemotherapy-induced peripheral neuropathy is a common consequence of chemotherapeutic treatments in patients with cancer. This study evaluated the validity and reliability of a Chinese version of the Neuropathic Pain Symptom Inventory (C-NPSI) in patients with colorectal cancer and chemotherapy-induced peripheral neuropathy. METHODS: This cross-sectional study recruited 106 patients from a cancer center in Northern Taiwan. The C-NPSI was obtained through the translation and back-translation of the original NPSI. Content validity was evaluated by 10 experts. Internal consistency reliability was assessed through Pearson correlation analysis. Construct validity was conducted by confirmed factor analysis. Convergent validity was examined using the Chinese version of Profile of Mood States-Short Form (POMS-SF). RESULTS: The item-level and average scale-level content validity indices were 0.80 and 0.90, respectively. Internal consistency reliability was acceptable (Cronbach's alpha coefficient = 0.9). A parsimonious goodness-of-fit model was supported by the normed chi-square (x2/df = 2.74), root mean square error of approximation (RMSEA; 0.10) and root mean square error with respect to the mean (RMSEM; 0.126, 90% confidence interval [CI], 0.093-0.16); partial indices were acceptable (goodness of-fit index [GFI] = 0.90; comparative fit index [CFI] = 0.89; incremental fit index [IFI] = 0.90). Additional model modifications demonstrated goodness of fit (x2/df = 1.78; RMSEA = 0.08; RMSEM = 0.085, 90% CI, 0.041-0.12; GFI = 0.92; CFI = 0.96; IFI = 0.96). Convergent validity showed most coefficients between the C NPSI and POMS-SF Chinese version have a significant positive correlation (p < 0.05-0.005). CONCLUSION: The C-NPSI has satisfactory reliability and validity. Clinicians and physician can use it to evaluate and manage oxaliplatin-induced peripheral neuropathy. PMID- 29325738 TI - The Effect of Patient and Surgical Characteristics on Renal Function After Partial Nephrectomy. AB - BACKGROUND: The purpose of the study was to identify patient and disease characteristics that have an adverse effect on renal function after partial nephrectomy. PATIENTS AND METHODS: We conducted a retrospective review of 387 patients who underwent partial nephrectomy for renal tumors between 2006 and 2014. A line plot with a locally weighted scatterplot smoothing was generated to visually assess renal function over time. Univariable and multivariable longitudinal regression analyses incorporated a random intercept and slope to evaluate the association between patient and disease characteristics with renal function after surgery. RESULTS: Median age was 60 years and most patients were male (255 patients [65.9%]) and white (343 patients [88.6%]). In univariable analysis, advanced age at surgery, larger tumor size, male sex, longer ischemia time, history of smoking, and hypertension were significantly associated with lower preoperative estimated glomerular filtration rate (eGFR). In multivariable analysis, independent predictors of reduced renal function after surgery included advanced age, lower preoperative eGFR, and longer ischemia time. Length of time from surgery was strongly associated with improvement in renal function among all patients. CONCLUSION: Independent predictors of postoperative decline in renal function include advanced age, lower preoperative eGFR, and longer ischemia time. A substantial number of subjects had recovery in renal function over time after surgery, which continued past the 12-month mark. These findings suggest that patients who undergo partial nephrectomy can experience long-term improvement in renal function. This improvement is most pronounced among younger patients with higher preoperative eGFR. PMID- 29325739 TI - Anti-Programmed Cell Death 1/Ligand 1 (PD-1/PD-L1) Antibodies for the Treatment of Urothelial Carcinoma: State of the Art and Future Development. AB - Immunotherapy with programmed cell death 1/ligand 1 (PD-1/PD-L1) checkpoint inhibitors has expanded a previously limited pool of effective treatment options for patients with metastatic urothelial carcinoma, particularly those with recurring or refractory disease and those who are ineligible for cisplatin. This review reports key findings from completed and ongoing clinical trials that highlight the potential of PD-1/PD-L1 blockade in urothelial carcinoma. A literature search was performed of PubMed, Embase, ClinicalTrials.gov, and selected annual congress abstracts. Prospective studies, reviews, editorials, and descriptions of ongoing anti-PD-1/PD-L1 studies in bladder cancer were included. Anti-PD-1/PD-L1 monoclonal antibodies have shown efficacy and safety across patient subgroups with urothelial carcinoma, including those with poor prognostic factors. Efficacy was similar across different anti-PD-1/PD-L1 agents. Although these antibodies have demonstrated durable responses in a subset of patients with urothelial carcinoma, clinicians are currently unable to predict which patients may derive benefit from immune checkpoint blockade. Anti-PD-1/PD-L1 antibodies have shown favorable clinical activity and tolerability in patients with metastatic urothelial carcinoma refractory to platinum-based therapy or who are ineligible for cisplatin. The activity of PD-1/PD-L1 inhibitors is now also being studied as first-line monotherapy in cisplatin-eligible patients in combination with chemotherapy as maintenance therapy after first-line chemotherapy, and in earlier disease states, such as muscle-invasive and non-muscle-invasive bladder cancer. Better predictive tools to define target patient populations are needed, as are further investigations to define optimal combinations or sequencing of treatments. PMID- 29325741 TI - Functional engineered mesenchymal stem cells with fibronectin-gold composite coated catheters for vascular tissue regeneration. AB - Vascularization of engineered tissues remains one of the key problems. Here, we described a novel approach to promote vascularization of engineered tissues using fibronectin (FN) incorporated gold nanoparticles (AuNP) coated onto catheters with mesenchymal stem cells (MSCs) for tissue engineering. We found that the FN AuNP composite with 43.5 ppm of AuNP exhibited better biomechanical properties and thermal stability than pure FN. FN-AuNP composites promoted MSC proliferation and increased the biocompatibility. Mechanistically, vascular endothelial growth factor (VEGF) promoted MSC migration on FN-AuNP through the endothelial oxide synthase (eNOS)/metalloproteinase (MMP) signaling pathway. Vascular femoral artery tissues isolated from the implanted FN-AuNP-coated catheters with MSCs expressed substantial CD31 and alpha-smooth muscle actin (alpha-SMA), displayed higher antithrombotic activity, as well as better endothelialization ability than those coated with all other materials. These data suggested that the implantation of FN-AuNP-coated catheter with MSCs could be a novel strategy for vascular biomaterials applications. PMID- 29325740 TI - Indocyanine green loaded hyaluronan-derived nanoparticles for fluorescence enhanced surgical imaging of pancreatic cancer. AB - Pancreatic ductal adenocarcinoma is highly lethal and surgical resection is the only potential curative treatment for the disease. In this study, hyaluronic acid derived nanoparticles with physico-chemically entrapped indocyanine green, termed NanoICG, were utilized for intraoperative near infrared fluorescence detection of pancreatic cancer. NanoICG was not cytotoxic to healthy pancreatic epithelial cells and did not induce chemotaxis or phagocytosis, it accumulated significantly within the pancreas in an orthotopic pancreatic ductal adenocarcinoma model, and demonstrated contrast-enhancement for pancreatic lesions relative to non-diseased portions of the pancreas. Fluorescence microscopy showed higher fluorescence intensity in pancreatic lesions and splenic metastases due to NanoICG compared to ICG alone. The in vivo safety profile of NanoICG, including, biochemical, hematological, and pathological analysis of NanoICG-treated healthy mice, indicates negligible toxicity. These results suggest that NanoICG is a promising contrast agent for intraoperative detection of pancreatic tumors. PMID- 29325742 TI - Mutation of the conserved G66 residue in GS region decreased structural stability and activity of arginine kinase. AB - Arginine kinase (AK) catalyzes the reversible phosphorylation of arginine by ATP, yielding the phosphoarginine. Amino acid residues in the guanidine specificity (GS) region play important roles in the guanidine-recognition. However, little is known about roles of amino acid residue G66 in the GS region in proteins folding, activity and structural stability. In this study, a series of G66 mutations were constructed to investigate its roles in AK's structural stability and activity. Our studies revealed that mutations in this conserved site could cause pronounced loss of activity, conformational changes and structural stability. Spectroscopic experiments indicate that G66 mutations influences AK transition from the molten globule intermediate to the native state in folding process. These results provided herein may suggest that amino acid residue G66 may play a relatively important role in AK's activity and structural stability. PMID- 29325743 TI - Total fractionation and characterization of the water-soluble polysaccharides isolated from Enteromorpha intestinalis. AB - Water-soluble crude polysaccharides (WE) were extracted from the Enteromorpha intestinalis with hot water and further fractionated on a DEAE-52 Cellulose chromatography column and Sepharose CL-6B gel-permeation chromatography to afford one neutral fraction (WE-11) and five acidic fractions (WE-21, WE-31, WE-32, WE 41 and WE-42). Monosaccharide analysis showed that WE-32, WE-41 and WE-42 were all composed of Rha and GlcA, WE-21 and WE-31 contained Man and Rha, and WE-11 was composed of GlcA and Xyl. The molecular weight of WE-11, WE-21, WE-31 WE-32, WE-41 and WE-42 were 2.23 * 105, 1.42 * 105, 1.42 * 105, 2.62 * 104, 2.23 * 105 and 8.09 * 104, respectively. Then, antioxidant activities in vitro were investigated on the basis of DPPH radical assay, reducing power assay, hydroxyl radical assay and superoxide radical assay. Of all polysaccharides fractions, WE 32 and WE-41 had relative higher content of sulfate and GlcA. In addition, WE-32 and WE-41 showed relative stronger antioxidant activity and inhibitory activity in vitro. The antioxidant activities of polysaccharides were not a function of a single factor but a combination of several factors, such as monosaccharide composition, molecular weights, protein content, uronic acid and sulfate content. PMID- 29325744 TI - Dextran hydrogels by crosslinking with amino acid diamines and their viscoelastic properties. AB - Amine functionalized polysaccharide hydrogels such as those based on chitosan are widely examined as biomaterials. Here we set out to develop a facile procedure for developing such hydrogels by crosslinking dextran with amino acid diamines. The dextran-amino acid gels were formed by the addition of the amino acid diamines to a dextran and epichlorohydrin solution once it became homogeneous. This was demonstrated with three amino acid diamines, lysine, lysine methyl ester, and cystine dimethyl ester. Hydrogel networks with albumin entrapped were also demonstrated. These hydrogels were characterized by FTIR, SEM, rotational rheometry, swelling studies and cell biocompatibility analysis. These hydrogels showed the unexpected pH-responsive behavior of greater swelling at more basic pH, similar to that of an anionic hydrogel. This is uncharacteristic for amine functionalized gels as they typically exhibit cationic hydrogel behavior. All hydrogels showed similar biocompatibility to that of dextran crosslinked without amino acids. PMID- 29325745 TI - Chitosan nanoparticles/cellulose nanocrystals nanocomposites as a carrier system for the controlled release of repaglinide. AB - The aim of the present work was to study the use of cellulose nanocrystals (CNC) and chitosan nanoparticles (CHNP) for developing controlled-release drug delivery system of the anti-hyperglycemic drug Repaglinide (RPG). CNC was isolated from palm fruit stalks by sulfuric acid hydrolysis; the dimensions of the isolated nanocrystals were 86-237 nm in length and 5-7 nm in width. Simple and economic method was used for the fabrication of controlled release drug delivery system from CNC and CHNP loaded with RPG drug via ionic gelation of chitosan in the presence of CNC and RPG. The prepared systems showed high drug encapsulation efficiency of about ~98%. Chemical modification of CNC by oxidation to introduce carboxylic groups on their surface (OXCNC) was also carried out for further controlling of RPG release. Particles size analysis showed that the average size of CHNP was about 197 nm while CHNP/CNC/RPG or CHNP/OXCNC/RPG nanoparticles showed average size of 215-310 nm. Compatibility studies by Fourier transform infrared (FTIR) spectroscopy showed no chemical reaction between RPG and the system's components used. By studying the drug release kinetic, all the prepared RPG formulations followed Higuchi model, indicating that the drug released by diffusion through the nanoparticles polymeric matrix. PMID- 29325746 TI - First report of the characterization of a snake venom apyrase (Ruviapyrase) from Indian Russell's viper (Daboia russelii) venom. AB - A novel apyrase from Russell's viper venom (RVV) was purified and characterized, and it was named Ruviapyrase (Russell's viper apyrase). It is a high molecular weight (79.4 kDa) monomeric glycoprotein that contains 2.4% neutral sugars and 58.4% N-linked oligosaccharides and strongly binds to Concanavalin A. The LC MS/MS analysis did not identify any protein in NCBI protein database, nevertheless some de novo sequences of Ruviapyrase showed putative conserved domain of apyrase superfamily. Ruviapyrase hydrolysed adenosine triphosphate (ATP) to a significantly greater extent (p < .05) as compared to adenosine diphosphate (ADP); however, it was devoid of 5'-nucleotidase and phosphodiesterase activities. The Km and Vmax values for Ruviapyrase towards ATP were 2.54 MUM and 615 MUM of Pi released min-1, respectively with a turnover number (Kcat) of 24,600 min-1. Spectrofluorometric analysis demonstrated interaction of Ruviapyrase with ATP and ADP at Kd values of 0.92 nM and 1.25 nM, respectively. Ruviapyrase did not show cytotoxicity against breast cancer (MCF-7) cells and haemolytic activity, it exhibited marginal anticoagulant and strong antiplatelet activity, and dose-dependently reversed the ADP-induced platelet aggregation. The catalytic activity and platelet deaggregation property of Ruviapyrase was significantly inhibited by EDTA, DTT and IAA, and neutralized by commercial monovalent and polyvalent antivenom. PMID- 29325747 TI - Synthesis, characterization of novel chitosan based water dispersible polyurethanes and their potential deployment as antibacterial textile finish. AB - Our current research work comprised of synthesis of a series of novel chitosan based water dispersible polyurethanes. The synthesis was carried out in three steps, in first step, the NCO end capped PU-prepolymer was formed through the reaction between Polyethylene glycol (PEG) (Mn = 600), Dimethylolpropionic acid (DMPA) and Isophorone diisocyanate (IPDI). In second step, the neutralization step was carried out by using Triethylamine (TEA) which resulted the formation of neutralized NCO terminated PU-prepolymer, after that the last step chain extension was performed by the addition of chitosan and followed the formation of dispersion by adding calculated amount of water. The proposed structure of CS WDPUs was confirmed by using FTIR technique. The antimicrobial activities of the plain weave poly-cotton printed and dyed textile swatches after application of CS WDPUs were also evaluated. The results showed that the chitosan incorporation in to PU backbone has markedly enhanced the antibacterial activity of WDPUs. These synthesized CS-WDPUs are eco-friendly antimicrobial finishes (using natural bioactive agents such as chitosan) with potential applications on polyester/cotton textiles. PMID- 29325748 TI - Cranberry proanthocyanidin-chitosan hybrid nanoparticles as a potential inhibitor of extra-intestinal pathogenic Escherichia coli invasion of gut epithelial cells. AB - Chitosan interacts with proanthocyanidins through hydrogen-bonding, which allows encapsulation and development of stable nanoparticles via ionotropic gelation. Cranberry proanthocyanidins (PAC) are associated with the prevention of urinary tract infections and PAC inhibit invasion of gut epithelial cells by extra intestinal pathogenic Escherichia coli (ExPEC). We determined the effect of cranberry proanthocyanidin-chitosan hybrid nanoparticles (PAC-CHTNp) on the ExPEC invasion of gut epithelial cells in vitro. PAC-CHTNp were characterized according to size, morphology, and bioactivity. Results showed a decrease in the size of the nanoparticles as the concentration of PAC was increased, indicating that PAC increases cross-linking by hydrogen-bonding on the surface of the chitosan nanoparticles. Nanoparticles were produced with diameters ranging from 367.3 nm to 293.2 nm. Additionally, PAC-CHTNp significantly inhibited the ability of ExPEC to invade the enterocytes by ~80% at 66 MUg GAE/mL and by ~92% at 100 MUg GAE/mL. Results also indicate that chitosan nanoparticles alone were not significantly different from controls in preventing ExPEC invasion of enterocytes (data not shown) and also there were not significant differences between PAC alone and PAC CHTNp, suggesting that the new PAC-CHTNp could lead to an increase in the stability of encapsulated PAC, maintain the molecular adhesion of PAC to ExPEC. PMID- 29325749 TI - Sustained improvement of psoriasis associated with HCV after virologic response to sofosbuvir/ribavirin. AB - An 18 year old boy attended a dermatology clinic outside our hospital and diagnosed with psoriasis. His skin lesions over both ankles (Fig. 1) did not improve at all with potent local steroids twice for 3 months, then 3 times daily for another 3 months. His dermatologist talked to him about using methotrexate and asked for liver function tests before starting the systemic therapy. His ALT and AST were doubled. The patient came to our Hepatology clinic worried about his elevated liver enzymes. We asked for viral markers. His HCV-Ab was positive, and PCR for HCV-RNA was 650,000 IU/ml. Treatment started with sofosbuvir 400 mg PO once daily plus ribavirin 600 mg at the morning and 400 mg at the evening. After 4 weeks, ALT and AST decreased to normal and PCR for HCV-RNA was <5 IU/ml. All other lab tests were unremarkable. The skin lesions improved markedly (Fig. 2). Now, after 6 months of the end of treatment, sustained virologic response was documented and the skin lesions are almost disappeared without any topical or systemic treatment. PMID- 29325750 TI - Double-balloon enteroscopy (DBE) in patients presenting with obscure gastrointestinal bleeding (OGIB). AB - BACKGROUND AND STUDY AIMS: Obscure gastrointestinal bleeding (OGIB) is defined as bleeding of unknown origin that persists or recurs after an initial negative investigation. Identifying the source of OGIB represents a diagnostic challenge that is frequently focused on visualizing the small intestine. Conventional diagnostic methods, such as push enteroscopy, small-bowel follow-through, radionuclide scanning, and angiography, each exhibit inherent limitations. Double balloon enteroscopy (DBE) was designed specifically to evaluate the entire small bowel. DBE allows for better visualization, biopsy of the identified lesions and application of therapeutic techniques. This study sought to assess the role of DBE in the diagnosis and management of patients with OGIB. PATIENTS AND METHODS: This prospective study was conducted to analyse data from 31 patients presenting with OGIB referred for DBE in the Endoscopy Unit at the Internal Medicine Department of the Faculty of Medicine, Cairo University. RESULTS: Five patients had lesions in locations other than the small intestine that accounted for GI bleeding. Thus, the potential source of OGIB was defined as the small intestine in 18 of 26 patients (69.2%), and negative DBE findings were noted in eight patients (30.8%). Major findings included small intestinal tumours in eight patients, vascular bleeding lesions in 8 patients and ulcerations in 2 patients. Endoscopic haemostasis was performed in eight patients with vascular lesions. The three patients with Petuz-Jegher syndrome underwent polypectomy of their major polyps. Patients with gastrointestinal tumours were referred for surgery. CONCLUSION: DBE is an excellent endoscopic procedure that has a relatively high diagnostic and therapeutic yield. The procedure is feasible and exhibits a high safety profile with a low complication rate when performed by an experienced endoscopist. PMID- 29325751 TI - A difficult diagnosis of coeliac disease: Repeat duodenal histology increases diagnostic yield in patients with concomitant causes of villous atrophy. AB - Villous atrophy in absence of coeliac disease (CD)-specific antibodies represents a diagnostic dilemma. We report a case of a woman with anaemia, weight loss and diarrhoea with an initial diagnosis of seronegative CD and a histological documented villous atrophy who did not improve on gluten-free diet due to the concomitant presence of common variable immunodeficiency (CVID) and Giardia lamblia infection. This case report confirms that CD diagnosis in CVID patients is difficult; the combination of anti-endomysial antibodies (EmA-IgA), anti tissue transglutaminase antibodies (tTG-IgAb) antibodies and total IgA is obligatory in basic diagnostic of CD but in CVID are negative. Furthermore, the typical histological aspects of the intestinal mucosa in CVID (absence of plasma cells and switch to the IgD immunoglobulins), cannot rule out a concomitant CD diagnosis. HLA typing in this setting has a low positive predictive value but should be considered. Histological response to a gluten-free diet on repeat biopsy and the concomitant treatment of other causes of villous atrophy leads to a definite diagnosis of CD. PMID- 29325752 TI - Body temperature in sepsis: a hot topic. PMID- 29325754 TI - A comprehensive approach for evaluating charge heterogeneity in biosimilars. AB - Charge heterogeneity is often evaluated during biosimilar development as it is a universal feature of monoclonal antibodies (mAbs). A common approach in the industry is to develop a biosimilar product with a similar overall charge profile as the reference product. However, uncertainty remains with this approach as the same charge profile in two different products may be caused by different mechanisms. In this work, we present a comprehensive investigation of the charge variants of a therapeutic monoclonal antibody and its biosimilar candidate. Not only did the candidate show a similar charge profile as the reference product, our studies revealed that the same factors contributed to the charge variants of the reference product and the biosimilar candidate. We believe our cause-based approach mitigates the risks associated with the profile-based method and is a rational approach for the charge evaluation of biosimilars. PMID- 29325755 TI - Amphotericin B-albumin conjugates: Synthesis, toxicity and anti-fungal activity. AB - Amphotericin B (AmB), a hydrophobic drug with negligible aqueous solubility was conjugated to bovine serum albumin (BSA) via amide bond coupling to give 6 to 8 wt% drug payload. The resulting conjugate was characterized using SDS-PAGE and UV visible, FTIR and CD spectroscopy. The conjugate was water-soluble to the extent of 150 mg/ml, was non-toxic to HEK 293 T cells at a concentration of 500 MUg/ml (equivalent to ~30 MUg AmB) and showed hemolysis of <5% at 200 MUg/ml (equivalent to ~12 MUg AmB) against human erythrocytes in vitro. In vitro release studies at 37 degrees C demonstrated steady release of AmB up to 20% from the conjugate with little burst effect in phosphate buffered saline whereas thrice the amount was released in human plasma in 72 h. AmBisome(r) used as a reference showed a very similar release profile in plasma. The conjugate exhibited potential anti fungal activity against yeast strains such as C. albicans, C. neoformans and C. parapsilosis with the minimum inhibitory concentration (MIC) equivalent to AmB ranging from 0.7 to 1.1 MUg/ml while AmBisome(r) and AmB alone showed the MIC between 0.78 and 1.5 and 0.53-0.78 MUg/ml respectively. Although AmB has been conjugated to various natural and synthetic polymers to improve its solubility and reduce its toxicity, the results obtained in this study using the model protein BSA as a carrier point to the possibility of taking this pro-drug approach to human clinical use using human serum albumin (HSA) as the carrier, since HSA has emerged as a versatile drug carrier for treating diabetes and cancer and improving the pharmacokinetic profile of many drugs with US FDA approving HSA as a drug carrier for the anti-cancer drug paclitaxel (Abraxane(r)) for human use. PMID- 29325756 TI - ? PMID- 29325757 TI - The role of fatty acids and their endocannabinoid-like derivatives in the molecular regulation of appetite. AB - Intake, absorption and synthesis of fatty acids, including those produced by the intestinal microbiota are tightly monitored via specific receptors and, indirectly through their conversion into a variety of signalling molecules. The resulting information is integrated and translated to different physiological processes, including the regulation of appetite and satiation. Direct chemosensing of fatty acids takes place via interaction with free fatty acid (FFA) and other receptors. These are present in the oronasal cavity and along the entire gastrointestinal tract, in various other tissues, and, for some receptors also in brain. Results from early studies have suggested differences between fatty acids in their ability to induce the release of satiety hormones or their short-term effects on food-intake. However, more recent findings indicate that this has limited impact on long-term energy intake. Similarly, pharmacological strategies for appetite control via modulation of peripheral fatty acid binding receptors have not met their expectations. Regarding the psychobiology of eating behaviour, there has been a shift towards emphasising the importance of food reward and the cephalic phase response. Lipid-rich foods are highly energy dense. During evolution this has stimulated the development of reward mechanisms, in which fatty acids, in conjunction with carbohydrates, are major triggers. Fatty acids are also precursors of endocannabinoids and their structural congeners. The endocannabinoid system (ECS) plays a pivotal role in the homeostatic and non homeostatic regulation of eating behaviour. In the brain it links to different endocrine and neuronal pathways, including dopaminergic circuits in the mesocorticolimbic system such as the ventral tegmental area and the nucleus accumbens, which are crucial for hedonic eating. Despite the vast progress made in the field of neurobiology it is clear that eating behaviour, one of our strongest instincts, still possess major scientific challenges. The failure, already a decade ago, of the cannabinoid-receptor type 1 (CB1) blockers for treatment of overweight and its complications may serve as an illustration that 'single-target' approaches to modulate, or even understand-, over- or undereating are very unrealistic. PMID- 29325753 TI - Induced hypothermia in patients with septic shock and respiratory failure (CASS): a randomised, controlled, open-label trial. AB - BACKGROUND: Animal models of serious infection suggest that 24 h of induced hypothermia improves circulatory and respiratory function and reduces mortality. We tested the hypothesis that a reduction of core temperature to 32-34 degrees C attenuates organ dysfunction and reduces mortality in ventilator-dependent patients with septic shock. METHODS: In this randomised, controlled, open-label trial, we recruited patients from ten intensive care units (ICUs) in three countries in Europe and North America. Inclusion criteria for patients with severe sepsis or septic shock were a mean arterial pressure of less than 70 mm Hg, mechanical ventilation in an ICU, age at least 50 years, predicted length of stay in the ICU at least 24 h, and recruitment into the study within 6 h of fulfilling inclusion criteria. Exclusion criteria were uncontrolled bleeding, clinically important bleeding disorder, recent open surgery, pregnancy or breastfeeding, or involuntary psychiatric admission. We randomly allocated patients 1:1 (with variable block sizes ranging from four to eight; stratified by predictors of mortality, age, Acute Physiology and Chronic Health Evaluation II score, and study site) to routine thermal management or 24 h of induced hypothermia (target 32-34 degrees C) followed by 48 h of normothermia (36-38 degrees C). The primary endpoint was 30 day all-cause mortality in the modified intention-to-treat population (all randomly allocated patients except those for whom consent was withdrawn or who were discovered to meet an exclusion criterion after randomisation but before receiving the trial intervention). Patients and health-care professionals giving the intervention were not masked to treatment allocation, but assessors of the primary outcome were. This trial is registered with ClinicalTrials.gov, number NCT01455116. FINDINGS: Between Nov 1, 2011, and Nov 4, 2016, we screened 5695 patients. After recruitment of 436 of the planned 560 participants, the trial was terminated for futility (220 [50%] randomly allocated to hypothermia and 216 [50%] to routine thermal management). In the hypothermia group, 96 (44.2%) of 217 died within 30 days versus 77 (35.8%) of 215 in the routine thermal management group (difference 8.4% [95% CI -0.8 to 17.6]; relative risk 1.2 [1.0-1.6]; p=0.07]). INTERPRETATION: Among patients with septic shock and ventilator-dependent respiratory failure, induced hypothermia does not reduce mortality. Induced hypothermia should not be used in patients with septic shock. FUNDING: Trygfonden, Lundbeckfonden, and the Danish National Research Foundation. PMID- 29325758 TI - MiR-186-5p upregulation inhibits proliferation, metastasis and epithelial-to mesenchymal transition of colorectal cancer cell by targeting ZEB1. AB - MicroRNA-186-5p (miR-186-5p) is upregulated and exhibits as a crucial oncogene in various human tumors. However, the functions and underlying mechanisms of this microRNA on colorectal cancer remain largely unknown. Here, we report that miR 186-5p share a lower expression in colorectal cancer cell lines (HT116, H29, SW620 and LoVo) than in normal colonic epithelial cell line NCM460. MiR-186-5p overexpression inhibits proliferation, metastasis and epithelial-to-mesenchymal transition (EMT) of colorectal cancer cell line LoVo. Zinc Finger E-Box Binding Homeobox 1 (ZEB1), an EMT related marker, is predicted as a target of miR-186-5p. Luciferase reporter assay, qRT-PCR and western blot analysis showed that miR-186 5p directly targeted the 3'-untranslated regions (3'UTR) of ZEB1 messenger RNA. Further functional experiments indicated that overexpression of miR-186-5p suppress the proliferation and metastasis ability of LoVo, which was consistent with the inhibitory effects by knockdown of ZEB1. Additionally, overexpression of ZEB1 could significantly reverse the miR-186-5p mimics initiated suppression impact of proliferation, metastasis and EMT on LoVo. In summary, miRNA-186-5p affects the proliferation, metastasis and EMT process of colorectal cancer cell by inhibition of ZEB1. Hence, it may serve as a promising therapeutic target for colorectal cancer. PMID- 29325759 TI - SNPs in the vicinity of P2X7R, RANK/RANKL/OPG and Wnt signalling pathways and their association with bone phenotypes in academy footballers. AB - CONTEXT: Genotype plays an important role in influencing bone phenotypes, such as bone mineral density, but the role of genotype in determining responses of bone to exercise has yet to be elucidated. OBJECTIVE: To determine whether 10 SNPs associated with genes in the vicinity of P2X7R, RANK/RANKL/OPG and Wnt Signalling Pathways are associated with bone phenotypes in elite academy footballers (Soccer players) and to determine whether these genotypes are associated with training induced changes in bone. Design, participants, and methods: 99 elite academy footballers volunteered to participate. Peripheral computed tomography of the tibia (4%, 14%, 38% and 66% sites) was performed immediately before and 12 weeks after an increase in football training volume. Genotypes were determined using proprietary fluorescence-based competitive allele-specific PCR assays. RESULTS: No significant genotype by time interactions were shown for any of the SNPs analysed (P > .05). A main effect of genotype was shown. SOST SNP rs1877632 (trabecular density), P2X7R SNPs rs1718119 (cortical thickness and CSA), rs3751143 (SSI, CSA, cortical CSA and periosteal circumference) RANK/RANKL/OPG SNPs rs9594738 (periosteal circumference), rs1021188 (cortical thickness and CSA) and rs9594759 (cortical density) were associated with bone phenotypes (P < .05). CONCLUSIONS: No association was shown between P2X7R, RANK/RANKL/OPG and Wnt Signalling SNPs and a change in bone phenotypes following 12 weeks of increased training volume in elite academy footballers. However, SNPs were associated with bone phenotypes pre training. These data highlight the complexity of the interaction between SNPs in the vicinity of the RANK/RANKL/OPG, P2X7R and Wnt metabolic regulatory pathways and bone phenotypes in elite academy footballers. PMID- 29325760 TI - NephMadness After 5 Years: A Recap and Game Plan for the Future. PMID- 29325761 TI - Trends in Utilization of Robotic and Open Partial Nephrectomy for Management of cT1 Renal Masses. AB - BACKGROUND: Partial nephrectomy is widely used for surgical management of small renal masses. Use of robotic (RPN) versus open partial nephrectomy (OPN) among various populations is not well characterized. OBJECTIVE: To analyze trends in utilization of RPN and disparities that may be associated with this procedure for management of cT1 renal masses in the USA. DESIGN, SETTING, AND PARTICIPANTS: Patients who underwent RPN or OPN for clinical stage T1N0M0 renal masses in the USA from 2010 to 2013 were identified in the National Cancer Data Base. A total of 23 154 patients fulfilled the inclusion criteria. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Univariable and multivariable logistic regression analyses were performed to evaluate differences in receiving RPN or OPN across various patient groups. RESULTS AND LIMITATIONS: Utilization of RPN increased from 41% in 2010 to 63% in 2013. Black patients (adjusted odds ratio [aOR] 0.91, 95% confidence interval [CI] 0.84-0.98) and Hispanic patients (aOR 0.85, 95% CI 0.77 0.95) were less likely to undergo RPN. RPN was less likely to be performed in rural counties (aOR 0.80, 95% CI 0.66-0.98) and in patients with no insurance (aOR 0.52, 95% CI 0.44-0.61) or patients covered by Medicaid (aOR 0.81, 95% CI 0.73-0.90). There was no significant difference in RPN utilization between academic and non-academic facilities. Patients with higher clinical stage (aOR 0.58, 95% CI 0.55-0.62) and comorbidities (aOR 0.79, 95% CI 0.71-0.88) were also less likely to undergo RPN. CONCLUSIONS: Utilization of RPN has continued to increase over time; however, there are significant disparities in its utilization according to race and socioeconomic status. Black and Hispanic patients and patients in rural communities and with limited insurance were more likely to be treated with OPN instead of RPN. PATIENT SUMMARY: The use of robotic surgery in partial nephrectomy for management of small renal masses has increased over time. We found a significant disparity across different racial and socioeconomic groups in use of robotic partial nephrectomy compared to open surgery. Patients living in rural areas, with limited insurance, and multiple medical comorbidities were more likely to undergo open than robotic partial nephrectomy. PMID- 29325762 TI - Assessment of in vivo efficacy of eravacycline against Enterobacteriaceae exhibiting various resistance mechanisms: a dose-ranging study and pharmacokinetic/pharmacodynamic analysis. AB - After the pharmacokinetic (PK) profile of eravacycline, a novel fluorocycline, was defined, understanding its pharmacodynamic (PD) profile became essential. This study aimed to assess the correlation of the PK/PD index fAUC/MIC (ratio of area under the free drug concentration-time curve to MIC) and its magnitude with eravacycline's efficacy against Enterobacteriaceae using an immunocompetent murine thigh infection model to resemble the immunocompetent environment in eravacycline's clinical trials. Eight Enterobacteriaceae isolates with various resistance mechanisms were tested. Eravacycline doses ranged from 1-10 mg/kg/day and were given either once daily (q24h) or divided into doses every 12 h (q12h) over the 24-h treatment period. Antibacterial efficacy was measured as the change in log10CFU at 24 h compared with 0 h controls. Composite data were modelled using a sigmoid Emax model. Eravacycline MICs ranged from 0.125-0.5 ug/mL. The mean fAUC/MIC magnitudes required for stasis and 1-log reduction for the eight isolates were 2.9 +/- 3.1 and 5.6 +/- 5.0, respectively. Whilst the humanised eravacycline regimen (2.5 mg/kg q12h) pharmacokinetically achieves an fAUC0-24 that is higher than the fAUC0-24 achieved with the 5 mg/kg q24h dose, the latter was associated with greater efficacy, raising a suggestive correlation of the peak free drug concentration to MIC (fCmax/MIC) ratio with eravacycline's efficacy. This study showed that the magnitudes associated with eravacycline's efficacy in an immunocompetent murine thigh model appear to be close to achievable targets in human. These data support further development of eravacycline for treatment of infections caused by drug-resistant Enterobacteriaceae. PMID- 29325764 TI - Self-management model in the scheduling of successive appointments in rheumatology. AB - INTRODUCTION: The rheumatology service of Ciudad Real Hospital, located in an autonomous community of that same name that is nearly in the center of Spain, implemented a self-management model of successive appointments more than 10 years ago. Since then, the physicians of the department schedule follow-up visits for their patients depending on the disease, its course and ancillary tests. The purpose of this study is to evaluate and compare the self-management model for successive appointments in the rheumatology service of Ciudad Real Hospital versus the model of external appointment management implemented in 8 of the hospital's 15 medical services. MATERIAL AND METHODS: A comparative and multivariate analysis was performed to identify variables with statistically significant differences, in terms of activity and/or performance indicators and quality perceived by users. The comparison involved the self-management model for successive appointments employed in the rheumatology service of Ciudad Real Hospital and the model for external appointment management used in 8 hospital medical services between January 1 and May 31, 2016. RESULTS: In a database with more than 100,000 records of appointments involving the set of services included in the study, the mean waiting time and the numbers of non-appearances and rescheduling of follow-up visits in the rheumatology department were significantly lower than in the other services. The number of individuals treated in outpatient rheumatology services was 7,768, and a total of 280 patients were surveyed (response rate 63.21%). They showed great overall satisfaction, and the incidence rate of claims was low. CONCLUSION: Our results show that the self management model of scheduling appointments has better results in terms of activity indicators and in quality perceived by users, despite the intense activity. Thus, this study could be fundamental for decision making in the management of health care organizations. PMID- 29325763 TI - Clinical experience with three-dimensional printing techniques in orthopedic trauma. AB - BACKGROUND: To report our experiences with the use of three-dimensional (3D) printing in the field of orthopedic trauma. METHODS: This retrospective study enrolled 24 patients from three university teaching hospitals in whom 3D printing technique was applied: 14 patients with acetabular fractures and 10 patients with clavicular shaft fractures. We summarized our experiences with 3D printed bone models. RESULTS: Three-dimensional printed acetabular models improved understanding of complex acetabular anatomy and fracture pattern to plan the optimal positioning of a reduction clamp and the trajectory of screws. Pre bending of a reconstruction plate could reduce operative time. We also recorded fluoroscopic images of a simulated surgery for percutaneous screw fixation of the acetabular posterior column, with the optimal positioning of the guide wire determined during the simulation used as a reference during the actual operation. This surgical simulation was performed by a resident and served as a helpful training method. For fractures of the clavicle, we identified the optimal position of anatomical plates using 3D printed clavicle models. CONCLUSION: In our experience, 3D printing technique provided surgeons with improved understanding of the fracture pattern and anatomy and was effectively used for preoperative planning, education of surgical trainees, and performing simulations to improve intra-operative technical outcomes. PMID- 29325766 TI - Duration of treatment with bisphosphonates at the time of osteonecrosis of the jaw onset in patients with rheumatoid arthritis. Review. AB - INTRODUCTION: Rheumatoid arthritis (RA) is a frequent and co-morbid condition. One of the main complications is induced osteoporosis. Treatments related to this complication significantly modify oral and implant management. Affected patients represent a population at intermediate risk of osteonecrosis of the jaw (ONJ). The objective was to search the literature for durations of treatment with bisphosphonates at the time of ONJ occurrence in patients with RA in order to obtain an average duration. MATERIALS AND METHODS: A bibliographic search in the PubMed/Medline database was carried out using the following equation "(osteonecrosis and jaw) and rheumatoid arthritis" with no time limitation. The primary study endpoint was the duration of treatment with bisphosphonates (BP) at the time of ONJ onset in patients with RA. RESULTS: Twelve articles accounting for 50 patients were included. Patients had had a median of 46.8 months of treatment with BP before ONJ occurred. Mean, minimum and maximum treatment times were 48.68, 6 and 120 months, respectively. The standard deviation was 27.77 months. DISCUSSION: The median treatment duration in our cohort of patients with RA was less than that reported for osteoporosis. We therefore, recommend that practitioners take additional precautions regarding oral surgery or implant procedures, particularly in patients with RA who have been treated with BP for more than 4 years. PMID- 29325765 TI - A systematic investigation on the composition, evolution and expression characteristics of chemokine superfamily in grass carp Ctenopharyngodon idella. AB - Chemokines are a superfamily of small cytokines and characterized based on their ability to induce directional migration of cells along a concentration gradient by binding to chemokine receptors, which have important roles in immunology and development. Due to the numerous and diverse members, systematic identifications of chemokine superfamily genes are difficult in many species. To that end, a comprehensive analysis of BLAST and scripting language was conducted to systematically identify and characterize chemokine system in grass carp (Ctenopharyngodon idella). Our results showed that C. idella chemokine superfamily consists of 81 chemokines and 37 receptors, in which, most genes possess typical structural features of the chemokine superfamily. Phylogenetic analyses confirmed the existence of three chemokine subfamilies (CC, CXC and XC) in C. idella and revealed their homologous relationships with other species. Chemokine receptors are transmembrane receptors and contains CCR, CXCR, XCR and ACKR subfamilies. mRNA expression analyses of chemokine superfamily genes indicated that many members are sustainably expressed in multiple tissues before and after grass carp reovirus (GCRV) or Aeromonas hydrophila infection, which provides in vivo evidence for the response patterns after viral or bacterial infection. Meanwhile, this study also explored the evolution of chemokine system from arthropod to higher vertebrates and then investigated the changes in gene number/diversification, gene organization and encoded proteins during vertebrate evolution. These results will serve the further functional and evolutional studies on chemokine superfamily. PMID- 29325767 TI - Primary Synovial Sarcoma arising from gingivo-buccal sulcus harbouring SS18-SSX2 positive fusion transcript: The 1st reported case in English literature. AB - Synovial sarcoma (SS) is a mesenchymal tumour of uncertain histiogenesis that can show dual epithelial and mesenchymal differentiation. Thought to arise predominantly in deep soft tissue of extremities, these sarcomas have shown that they can affect a wide variety of organs and sites, however intraoral mucosal SS is rarely encountered and herein the authors present possibly the second reported case of a young lady presenting with a slow growing tumour arising in the gingivo buccal sulcus that was reported as Synovial sarcoma on biopsy and subsequently confirmed using molecular studies, tumour demonstrating SS18-SSX2 fusion transcript. Review of the published literature revealed no documented case with molecular fusion transcript making this case the first reported case. This case also highlights the imperative role of immunohistochemistry in tandem with molecular studies to confirm the diagnosis of spindle cell tumours of oral cavity, since squamous cell carcinoma, by far remains the commonest malignancy arising in mucosa lined oral cavity. PMID- 29325768 TI - Retraction notice to Pigment epithelium derived factor play a positive role in bone mineralization of osteoblasts derived from diabetic patients [GENE 627C (2017) 563 - 568 of retracted article]. PMID- 29325769 TI - The structural determinants of the bitopic binding mode of a negative allosteric modulator of the dopamine D2 receptor. AB - SB269652 is a negative allosteric modulator of the dopamine D2 receptor (D2R) yet possesses structural similarity to ligands with a competitive mode of interaction. In this study, we aimed to understand the ligand-receptor interactions that confer its allosteric action. We combined site-directed mutagenesis with molecular dynamics simulations using both SB269652 and derivatives from our previous structure activity studies. We identify residues within the conserved orthosteric binding site (OBS) and a secondary binding pocket (SBP) that determine affinity and cooperativity. Our results indicate that interaction with the SBP is a requirement for allosteric pharmacology, but that both competitive and allosteric derivatives of SB269652 can display sensitivity to the mutation of a glutamate residue (E952.65) within the SBP. Our findings provide the molecular basis for the differences in affinity between SB269652 derivatives, and reveal how changes to interactions made by the primary pharmacophore of SB269652 in the orthosteric pocket can confer changes in the interactions made by the secondary pharmacophore in the SBP. Our insights provide a structure-activity framework towards rational optimization of bitopic ligands for D2R with tailored competitive versus allosteric properties. PMID- 29325770 TI - Development of a non-toxic and non-denaturing formulation process for encapsulation of SDF-1alpha into PLGA/PEG-PLGA nanoparticles to achieve sustained release. AB - Chemokines are known to stimulate directed migration of cancer cells. Therefore, the strategy involving gradual chemokine release from polymeric vehicles for trapping cancer cells is of interest. In this work, the chemokine stromal cell derived factor-1alpha (SDF-1alpha) was encapsulated into nanoparticles composed of poly-(lactic-co-glycolic acid) (PLGA) and a polyethylene glycol (PEG)-PLGA co polymer to achieve sustained release. SDF-1alpha, and lysozyme as a model protein, were firstly precipitated to promote their stability upon encapsulation. A novel phase separation method utilising a non-toxic solvent in the form of isosorbide dimethyl ether was developed for the individual encapsulation of SDF 1alpha and lysozyme precipitates. Uniform nanoparticles of 200-250 nm in size with spherical morphologies were successfully synthesised under mild formulation conditions and conveniently freeze-dried in the presence of hydroxypropyl-beta cyclodextrin as a stabiliser. The effect of PLGA carboxylic acid terminal capping on protein encapsulation efficiency and release rate was also explored. Following optimisation, sustained release of SDF-1alpha was achieved over a period of 72 h. Importantly, the novel encapsulation process was found to induce negligible protein denaturation. The obtained SDF-1alpha nanocarriers may be subsequently incorporated within a hydrogel or other scaffolds to establish a chemokine concentration gradient for the trapping of glioblastoma cells. PMID- 29325771 TI - A cross-cultural study of acceptability and food pairing for hot sauces. AB - This study was conducted to understand the acceptance levels of hot sauces among consumers from different culinary cultures. Two newly developed hot sauces [fermented red chili pepper with soybean-paste-based sauce(GS) and fermented red chili-pepper-based sauce(KS)] were compared with Tabasco sauce(TB) and Sriracha sauce(SR). Two separate cross-cultural home-use tests(HUTs) were conducted: pizza and cream soup were provided as food items in HUT 1, whereas grilled chicken wings and rice noodle soup were provided in HUT 2. Consumers residing in Denmark, South Korea, and US participated in each HUT (n?100 per country). Acceptance levels and the reasons for (dis)liking particular hot sauces applied to food systems were assessed. The food items that paired well with different hot sauces when the sauces were applied freely to regular meals were also analyzed among the US and Korean subjects. When the hot-sauce samples were applied to pizza and cream soup, the preferred order of the samples exhibited a cross-cultural agreement (GS = KS > TB). In the case of grilled chicken and rice noodle soup, the acceptance rating was similar for the three types of hot sauces among Koreans, whereas the acceptance was higher for SR among the US subjects for both foodstuffs, while Danish subjects preferred GS and KS over SR. The US subjects did not like hot-sauce samples with sweet and weak spiciness, whereas the Korean and Danish subjects disliked the hot-sauce sample when it was too spicy and not sufficiently sweet. These findings indicate that the matching of particular sauces with specific food items is culture-dependent, and this needs to be considered when trying to export food products such as hot sauce to other countries. PMID- 29325772 TI - The association of SNP276G>T at adiponectin gene with insulin resistance and circulating adiponectin in response to two different hypocaloric diets. AB - BACKGROUND: Several adiponectin gene (ADIPOQ) single nucleotide polymorphisms (SNPS) have been related with adiponectin levels and risk for obesity. OBJECTIVE: The aim of our study was to analyze the effect of rs1501299 ADIPOQ gene polymorphism and dietary intake on total adiponectin levels and insulin resistance after two hypocaloric diets in obese subjects. MATERIAL AND METHODS: A Caucasian population of 284 obese patients was enrolled in a randomized clinical trial with two hypocaloric diets (I: moderate carbohydrates vs II: low fat). Before and after 12 weeks on each hypocaloric diet, an anthropometric evaluation, an assessment of nutritional intake and a biochemical analysis were realized. The statistical analysis was performed for the combined GT and TT as a group (mutant) and GG as second group (wild) (dominant model). RESULTS: The genotype distribution was 149 GG, 124 GT and 21 TT. With caloric restriction strategies, body weight, body mass index (BMI), fat mass, waist circumference, systolic blood pressure, total LDL cholesterol, LDL cholesterol and leptin levels decreased. Only in subjects with GG genotype, diet I and II decreased fasting insulin levels, HOMA-IR and adiponectin levels. The improvement was similar with both diets; insulin concentrations (Diet I: -4.7 +/- 1.4 mUI/L vs. Diet II: -5.9 +/- 1.9 mUI/L: p = .76), HOMA-IR (Diet I: -1.4 +/- 0.6 units vs. Diet II: -2.0 +/- 0.7 units: p = .56) and adiponectin levels (Diet I: -10.2 +/- 3.4 ng/dl vs. Diet II: -14.0 +/- 2.9 ng/dl: p = .33). CONCLUSION: The GG genotype of ADIPOQ gene variant (rs1501299) is associated with an increase in adiponectin levels and a decrease of insulin and HOMA-IR after weight loss. PMID- 29325773 TI - How safe is metformin when initiated in early pregnancy? A retrospective 5-year study of pregnant women with gestational diabetes mellitus from India. AB - BACKGROUND: The initiation of metformin in early pregnancy in Gestational Diabetes mellitus (GDM) remains controversial. The aim of our study was to assess the influence of Metformin on maternal and fetal outcomes when initiated within the first trimester of pregnancy in GDM. METHODS AND MATERIALS: A retrospective analysis of 540 women with diabetes complicating pregnancy (IADPSG criteria) over five years (January 2011 to May 2016) was done. The study population comprised of patients initiated on (a) metformin within the first trimester (Group A:n = 186), (b) metformin after the first trimester (Group B:n = 203) and (c) insulin at any time during their pregnancy (Group C:n = 151). The primary outcomes compared were prematurity, respiratory distress, birth trauma, 5-min APGAR score, neonatal hypoglycaemia and need for phototherapy, while secondary outcomes compared were neonatal anthropometric measurements, maternal glycemic control, maternal hypertensive complications, postpartum glucose tolerance. RESULTS: Individual and composite primary or secondary outcomes in group A were similar to Groups B and C, though numerically higher premature births were seen in Group A. There was a 1.3% overall incidence of stillbirths/IUD, while 1.11% congenital anomalies were noted of which 2.15% were in group A and 1.32% were in Group C (p = .16). CONCLUSIONS: The initiation of metformin within the first trimester of pregnancy has no significant adverse maternal or fetal outcomes. However, vigilance for premature births is recommended in women exposed to metformin in early pregnancy. PMID- 29325774 TI - Achievement of guideline targets for blood pressure, lipid, and glycaemic control in type 2 diabetes: A meta-analysis. AB - We assessed global achievement of targets recommended by the American Diabetes Association (ADA), European Association for the Study of Diabetes (EASD), and National Institute of Health and Care Excellence (NICE) for type 2 diabetes. We searched Medline, Embase, and The Cochrane Library for observational studies reporting target attainment (2006 to 2017 inclusive) for HbA1c, blood pressure, or lipids (low density lipoprotein cholesterol [LDL-C], high density lipoprotein cholesterol [HDL-C], or triglycerides). Rates were pooled using a random-effects meta-analysis. Study quality and risk of small study of bias was assessed. From 2491 screened records, 24 studies were included reporting on 369,251 people from 20 countries. The pooled target achievement rates were; 42.8% (95% CI 38.1-47.5%) for glycaemic control, 29.0% (22.9-35.9%) for blood pressure, 49.2% (39.0-59.4%) for LDL-C, 58.2% (51.7-64.4%) for HDL-C, and 61.9% (55.2-68.2%) for triglyceride control. A higher proportion of people achieved HbA1c targets within Europe and North America than the rest of the world. A higher proportion of people achieved blood pressure targets in North America than Europe or the rest of the world. Meta regression showed no significant improvement in rates by year for any target. The achievement of evidence-based targets is markedly suboptimal globally and not improving. PMID- 29325775 TI - Nutrigenetic variants and cardio-metabolic risk in women with or without gestational diabetes. AB - AIM: Gestational diabetes mellitus (GDM) is the most frequent metabolic disorder in pregnancy and it can be considered a silent risk associated to T2DM and CVD later in life. The aim of this study was to investigate the association of clinical parameters with nine single nucleotide polymorphisms (SNPs) involved with nutrients and metabolism in women with or without GDM in order to identify potential routine clinical markers for early prevention. METHODS: Nine gene variants associated with nutrients and metabolism, namely PPARG2 rs1801282 (C > G); PPARGC1A rs8192678 (C > T); TCF7L2 rs7903146 (C > T); LDLR rs2228671 (C > T); MTHFR rs1801133 (C > T); APOA5 rs662799 (T > C); GCKR rs1260326 (C > T); FTO rs9939609 (T > A); MC4R rs17782313 (T > C) were genotyped in 104 GDM cases and 124 controls using High Resolution Melting (HRM) analysis. RESULTS: The genetic variant rs7903146 (C > T) in TCF7L2 gene showed a strong association with GDM risk (OR: 2.56; 95% CI: [1.24-5.29]). Moreover, a significant correlation was observed between lipid parameters and polymorphisms in other genes, namely PPARG2 [p = 0,03], APOA5 [p = 0,02], MC4R [p = 0,03], LDLR [p = 0,04] and FTO [p = 0,03]. In addition, rs17782313 variant, mapped close to MC4R gene, was associated to BMI in pre-pregnancy [p = 0,02] and at the end of pregnancy [p = 0,03] in GDM group. CONCLUSION: In our study, we found significant associations between routine clinical parameters and some gene variants connected with nutrients and metabolism in women with GDM. These results can provide useful information to develop effective tools and possible personalized intervention strategies in a timely manner. PMID- 29325776 TI - Prevalence of prediabetes and diabetes mellitus among adults residing in Cameroon: A systematic review and meta-analysis. AB - AIMS: To summarize current data on the prevalence of prediabetes and diabetes mellitus in Cameroon. METHODS: Population-based cross-sectional studies published between January 1, 2000 and April 30, 2017 including apparently healthy adults residing in Cameroon were searched in PubMed, EMBASE, African Journals Online, and African Index Medicus. We used a random-effects model to pool data. RESULTS: All included studies had a low risk of bias. Six studies were conducted in an urban setting only, one in a rural setting only, and five in both settings. The overall prevalence of diabetes mellitus was 5.8% (95%CI 4.1-7.9; 12 studies) in a pooled sample of 37,147 participants. The prevalence of prediabetes was 7.1% (95%CI: 3.0-21.9; 4 studies) in a pooled sample of 5,872 people. In univariable meta-regression analysis, the prevalence of diabetes mellitus increased with age, hypertension, overweight and obesity. There was no difference for sex and settings (rural versus urban). CONCLUSIONS: This study reports a relatively high prevalence of diabetes mellitus and prediabetes in Cameroon, with no difference between urban and rural settings and between sexes. The main drivers include increasing age, overweight and obesity. Community-based educational programs are needed to tackle the burden of the disease in the country. PMID- 29325777 TI - Data-driven model reference control of MIMO vertical tank systems with model-free VRFT and Q-Learning. AB - This paper proposes a combined Virtual Reference Feedback Tuning-Q-learning model free control approach, which tunes nonlinear static state feedback controllers to achieve output model reference tracking in an optimal control framework. The novel iterative Batch Fitted Q-learning strategy uses two neural networks to represent the value function (critic) and the controller (actor), and it is referred to as a mixed Virtual Reference Feedback Tuning-Batch Fitted Q-learning approach. Learning convergence of the Q-learning schemes generally depends, among other settings, on the efficient exploration of the state-action space. Handcrafting test signals for efficient exploration is difficult even for input output stable unknown processes. Virtual Reference Feedback Tuning can ensure an initial stabilizing controller to be learned from few input-output data and it can be next used to collect substantially more input-state data in a controlled mode, in a constrained environment, by compensating the process dynamics. This data is used to learn significantly superior nonlinear state feedback neural networks controllers for model reference tracking, using the proposed Batch Fitted Q-learning iterative tuning strategy, motivating the original combination of the two techniques. The mixed Virtual Reference Feedback Tuning-Batch Fitted Q learning approach is experimentally validated for water level control of a multi input-multi output nonlinear constrained coupled two-tank system. Discussions on the observed control behavior are offered. PMID- 29325779 TI - [Editorial]. PMID- 29325778 TI - Nonstructural proteins nsp2TF and nsp2N of porcine reproductive and respiratory syndrome virus (PRRSV) play important roles in suppressing host innate immune responses. AB - Recently, we identified a unique -2/-1 ribosomal frameshift mechanism in PRRSV, which yields two truncated forms of nonstructural protein (nsp) 2 variants, nsp2TF and nsp2N. Here, in vitro expression of individual PRRSV nsp2TF and nsp2N demonstrated their ability to suppress cellular innate immune responses in transfected cells. Two recombinant viruses were further analyzed, in which either nsp2TF was C-terminally truncated (vKO1) or expression of both nsp2TF and nsp2N was knocked out (vKO2). Host cellular mRNA profiling showed that a panel of cellular immune genes, in particular those involved in innate immunity, was upregulated in cells infected with vKO1 and vKO2. Compared to the wild-type virus, vKO1 and vKO2 expedited the IFN-alpha response and increased NK cell cytotoxicity, and subsequently enhanced T cell immune responses in infected pigs. Our data strongly implicate nsp2TF/nsp2N in arteriviral immune evasion and demonstrate that nsp2TF/nsp2N-deficient PRRSV is less capable of counteracting host innate immune responses. PMID- 29325780 TI - Longitudinal atlas for normative human brain development and aging over the lifespan using quantitative susceptibility mapping. AB - Longitudinal brain atlases play an important role in the study of human brain development and cognition. Existing atlases are mainly based on anatomical features derived from T1-and T2-weighted MRI. A 4D developmental quantitative susceptibility mapping (QSM) atlas may facilitate the estimation of age-related iron changes in deep gray matter nuclei and myelin changes in white matter. To this end, group-wise co-registered QSM templates were generated over various age intervals from age 1-83 years old. Registration was achieved by combining both T1 weighted and QSM images. Based on the proposed template, we created an accurate deep gray matter nuclei parcellation map (DGM map). Notably, we segmented thalamus into 5 sub-regions, i.e. the anterior nuclei, the median nuclei, the lateral nuclei, the pulvinar and the internal medullary lamina. Furthermore, we built a "whole brain QSM parcellation map" by combining existing cortical parcellation and white-matter atlases with the proposed DGM map. Based on the proposed QSM atlas, the segmentation accuracy of iron-rich nuclei using QSM is significantly improved, especially for children and adolescent subjects. The age related progression of magnetic susceptibility in each of the deep gray matter nuclei, the hippocampus, and the amygdala was estimated. Our automated atlas based analysis provided a systematic confirmation of previous findings on susceptibility progression with age resulting from manual ROI drawings in deep gray matter nuclei. The susceptibility development in the hippocampus and the amygdala follow an iron accumulation model; while in the thalamus sub-regions, the susceptibility development exhibits a variety of trends. It is envisioned that the newly developed 4D QSM atlas will serve as a template for studying brain iron deposition and myelination/demyelination in both normal aging and various brain diseases. PMID- 29325781 TI - Racial inequalities in health: Framing future research. PMID- 29325782 TI - Commentary: Easy home gun access and adolescent depression. PMID- 29325783 TI - Validation of the AAST EGS acute cholecystitis grade and comparison with the Tokyo guidelines. AB - BACKGROUND: Acute cholecystitis presents with heterogeneous severity. The Tokyo Guidelines 2013 is a validated method to assess cholecystitis severity, but the variables are multifactorial. The American Association for the Surgery of Trauma (AAST) developed an anatomically based severity grading system for surgical diseases, including cholecystitis. Because the Tokyo Guidelines represent the gold standard to estimate acute cholecystitis severity, we wished to validate the AAST emergency general surgery scoring system and compare the performance of both systems for several patient outcomes. METHODS: Adults (>=18 years) with acute cholecystitis during 2013-2016 were identified. Baseline demographic characteristics, comorbidity severity as defined by Charlson Comorbidity Index score, procedure types, and AAST and Tokyo Guidelines 2013 grades were abstracted. Outcomes included duration of stay, 30-day mortality, and complications. Comparison of the Tokyo Guidelines and AAST grading system was performed using receiver operating characteristic (AUROC) curve C statistics. RESULTS: There were 443 patients, with a mean (+/-standard deviation) age of 64.8 (+/-18) years, 59% male. The median (interquartile ratio) Charlson Comorbidity score was 3 (0-6). Management included laparoscopic (n = 307, 69.3%), open (n = 26, 6%), laparoscopy converted to laparotomy (n = 53, 12%), and cholecystostomy (n = 57, 12.7%). Comparison of AAST with Tokyo Guidelines AUROC C statistics indicated (P < .05) mortality (0.86 vs 0.73), complication (0.76 vs 0.63), and cholecystostomy tube utilization (0.80 vs 0.68). CONCLUSION: Emergency general surgery grading systems improve disease severity assessment, may improve documentation, and guide management. Discrimination of disease severity using the AAST grading system outperforms the Tokyo Guidelines for key clinical outcomes. The AAST grading system requires prospective validation and further comparison. PMID- 29325784 TI - Kinetic analysis of contralateral liver hypertrophy after radioembolization of primary and metastatic liver tumors. AB - BACKGROUND: Radioembolization induces liver hypertrophy, although the extent and rate of hypertrophy are unknown. Our goal was to examine the kinetics of contralateral liver hypertrophy after transarterial radioembolization. METHODS: A retrospective study (2010-2014) of treatment-naive patients with primary/secondary liver malignancies undergoing right lobe radioembolization was performed. Computed tomography volumetry was performed before and 1, 3, and 6 months after radioembolization. Outcomes of interest were left lobe (standardized future liver remnant) degree of hypertrophy, kinetic growth rate, and ability to reach goal standardized future liver remnant >=40%. Medians were compared with the Kruskall-Wallis test. Time to event analysis was used to estimate time to reach goal standardized future liver remnant. RESULTS: In the study, 25 patients were included. At 1, 3, and 6 months, median degree of hypertrophy was 4%, 8%, and 12% (P < .001), degree of hypertrophy relative to baseline future liver remnants was 11%, 17%, and 31% (P = .015), and kinetic growth rate was 0.8%, 0.5%, and 0.4%/week (P = .002). In patients with baseline standardized future liver remnant <40% (N= 16), median time to reach standardized future liver remnant >=40% was 7.3 months, with 75% accomplishing standardized future liver remnant >=40% at 8.2 months. CONCLUSION: Radioembolization induces hypertrophy of the contralateral lobe to a similar extent as existing methods, although at a lower rate. The role of radioembolization as a dual therapy (neoadjuvant and hypetrophy-inducing) for selected patients needs to be studied. (Surgery 2017;160:XXX-XXX.). PMID- 29325785 TI - Characteristics and outcomes of children with ductal-dependent congenital heart disease and esophageal atresia/tracheoesophageal fistula: A multi-institutional analysis. AB - BACKGROUND: Extracardiac birth defects are associated with worse outcomes in congenital heart disease (CHD). The impact of esophageal atresia/trachea esophageal fistula (EA/TEF) on outcomes after surgery for ductal-dependent CHD is unknown. METHODS: Retrospective matched cohort study using the Pediatric Health Information System database from 07/2004 to 06/2015. Hospitalizations with ductal dependent CHD and EA/TEF, undergoing CHD surgery were included as cases. Admissions with ductal-dependent CHD without EA/TEF were matched 3:1 for age at admission and Risk Adjustment for Congenital Heart Surgery-1 classification. Comparisons were performed using generalized estimating equations. RESULTS: There were 124 cases and 372 controls. Cases included 32 (25.8%) low-risk, 86 (69.3%) intermediate-risk, and 6 (4.8%) high-risk patients. Cases had more females compared to controls (53.2% vs 41.1%, P = .022). Cases were more likely to be premature (28.2% vs 13.7%, P = .001) and low birth weight (29.8% vs 11.8%, P < .001). Cases had a similar frequency of Down syndrome, and DiGeorge/Velocardiofacial syndrome, but a higher frequency of anorectal malformations (4.3% vs 2.4%, P < .001) and renal anomalies (27.4% vs 9.9%, P < .001) than controls. Cases had a higher mortality on univariate (22.0% vs 8.4%, P < .001) and multivariable analysis (odds ratio 2.45, 95%, confidence interval 1.34 - 4.49). Prematurity also was significantly associated with mortality on multivariable analysis. Cases had a longer duration of mechanical ventilation, longer hospital duration of stay, and higher total cost than controls (all P < .001). CONCLUSION: In children with ductal-dependent CHD, EA/TEF is associated with increased morbidity, mortality and resource utilization. A majority of patients undergo EA/TEF repair prior to congenital heart disease surgery. (Surgery 2017;160:XXX-XXX.). PMID- 29325787 TI - Discussion. PMID- 29325786 TI - A proactive outreach intervention that decreases readmission after hepatectomy. AB - BACKGROUND: After hepatectomy, 7%-19% of patients are readmitted within 30 days, accounting for substantial cost and poor patient experience. The purpose of this study was to analyze the impact of a proactive outreach intervention on readmissions. METHODS: Consecutive patients undergoing hepatectomy by a single surgeon 2012-2016 were identified in a prospectively maintained database. In August 2013 a postoperative intervention was implemented; an advanced practice provider called each patient within 72 hours of discharge. Readmission rates were compared pre- and postintervention using standard statistics. RESULTS: Two hundred thirty-one patients met the inclusion criteria and major hepatectomy was performed in 45.5% of patients. Although the complication rate was similar (25.0% preintervention and 19.4% postintervention, P = .324), readmissions within 30 days of operation decreased from 14.5% pre- to 6.5% postintervention (P = .046). Approximately 30% of outreach interactions required outpatient intervention. Factors associated with readmission on univariate analysis included increased operative time (P = .007), major hepatectomy (P = .012), hemi or extended hepatectomy (P = .032), second stage operation (P = .031), bile leak (P = 0.022), and any complication/modified Accordion complication >= 3 within 30 days (P <.0001). On multivariate analysis, lack of post-discharge intervention (P = .012) and bile leak (P = .031) were independently associated with readmission. CONCLUSION: These data demonstrate the efficacy of a proactive communication intervention after discharge to decrease readmissions after hepatectomy. The additional work created by the intervention is likely offset by decreased inpatient care needs and costs. Identification of high-risk populations and application of technology are likely to lead to further improvements. PMID- 29325788 TI - Impact of the gastrojejunal anatomic position as the mechanism of delayed gastric emptying after pancreatoduodenectomy. AB - BACKGROUND: This study investigated the impact of gastrojejunal anatomic position on the incidence of delayed gastric emptying after pancreatoduodenectomy. METHODS: A total of 160 patients were included in the retrospective analysis. The relative anatomic position of the gastrojejunostomy was evaluated using coronal and sagittal plane computed tomography images on postoperative day 7; the coronal cardia anastomotic angle and the sagittal fundus anastomotic angle were measured. In the validation study, 64 consecutive patients were enrolled, and gastric emptying was evaluated using water-soluble contrast medium. The extent of gastric emptying was graded as grade I (no gastric dilatation and no stasis), grade II (gastric dilatation but no stasis), or grade III (gastric dilatation and stasis). RESULTS: Patients with grades B (n = 8) and C (n = 22) delayed gastric emptying were included in the delayed gastric emptying group (n = 30), and the others were included in the nondelayed gastric emptying group (n = 130). The coronal cardia anastomotic angle was not significantly different between the 2 groups, whereas the sagittal fundus anastomotic angle was significantly greater in the delayed gastric emptying group compared to the nondelayed gastric emptying group (median 50.3 vs 64.5 degrees, P < .001). Multivariate analysis, including various risk factors of delayed gastric emptying, indicated that a sagittal fundus anastomotic angle >60 degrees was the only independent risk factor of delayed gastric emptying (odds ratio, 16.59). In the validation study, the median degree of sagittal fundus anastomotic angle increased as the gastric emptying grade increased (grade I, 44.3 degrees; grade II, 55.3 degrees; grade III, 60.7 degrees; P = .014 by analysis of variance). CONCLUSION: The gastrojejunal anatomic position after pancreatoduodenectomy has a significant impact on the incidence of delayed gastric emptying. (Surgery 2017;160:XXX-XXX.). PMID- 29325789 TI - Long-term outcomes following ileal pouch-anal anastomosis in patients with indeterminate colitis. AB - BACKGROUND: The advisability of performing ileal pouch-anal anastomosis for patients with indeterminate colitis is debated. Indeterminate colitis is found in up to 15% of inflammatory bowel disease colectomy specimens. We determined long term outcomes in patients diagnosed with indeterminate colitis undergoing ileal pouch-anal anastomosis. METHODS: Fifty-six patients were included with a mean follow-up of 14 +/- 7 years. Long-term behavior was defined based on surgeon assessment as "Crohn disease-like" in patients who subsequently developed clear signs of Crohn disease and as "non-Crohn disease-like." Long-term function was assessed using the Cleveland Global Quality of Life and Pouch Functional Score. RESULTS: Thirty-nine percent of patients developed Crohn disease-like behavior, and 61% developed non-Crohn disease-like behavior. Both groups experienced a high rate of pouchitis (57%). Crohn disease-like patients required more anti inflammatory/immunomodulatory medications (95% vs 18%, P < .001), dilatations for afferent-limb strictures (41% vs 0%, P < .001), and pouch reoperations (32% vs 6%, P = .02). Eight patients required pouch excision or diversion (7 with Crohn disease-like behavior). The Pouch Functional Score was equivalent between groups. CONCLUSION: Long-term function after ileal pouch-anal anastomosis for the majority of indeterminate colitis patients was good. Approximately 40% eventually exhibited Crohn disease-like behavior, but the majority had acceptable function and quality of life. Ileal pouch-anal anastomosis is an appropriate surgical option for indeterminate colitis patients after informed consent. PMID- 29325790 TI - How do oral and maxillofacial surgeons manage concussion? AB - Craniofacial trauma results in distracting injuries that are easy to see, and as oral and maxillofacial surgeons (OMFS) we gravitate towards injuries that can be seen and are treatable surgically. However, we do tend not to involve ourselves (and may potentially overlook) injuries that are not obvious either visually or radiographically, and concussion is one such. We reviewed the records of 500 consecutive patients who presented with facial fractures at the Queen Elizabeth Hospital, Birmingham, to identify whether patients had been screened for concussion, and how they had been managed. Of the 500 cases 186 (37%) had concussion, and 174 (35%) had a more severe traumatic brain injury. The maxillofacial team documented loss of consciousness in 314 (63%) and pupillary reactions in 215 (43%). Ninety-three (19%) were referred for a neurosurgical opinion, although most of these were patients who presented with a Glasgow coma scale (GCS) of <=13. Only 37 patients (7%) were referred to the traumatic brain injury clinic. Recent reports have indicated that 15% of all patients diagnosed with concussion have symptoms that persist for longer than two weeks. These can have far-reaching effects on recovery, and have an appreciable effect on the psychosocial aspects of the patients' lives. As we have found, over one third of patients with craniofacial trauma are concussed. We think, therefore, that all patients who have been referred to OMFS with craniofacial trauma should be screened for concussion on admission, and at the OMFS follow up clinic. In addition, there should be an agreement between consultants that such patients should be referred to the traumatic brain injury clinic for follow up. PMID- 29325791 TI - The therapeutic effects of Cannabis and cannabinoids: An update from the National Academies of Sciences, Engineering and Medicine report. AB - The National Academies of Sciences, Engineering and Medicine conducted a rapid turn-around comprehensive review of recent medical literature on The Health Effects of Cannabis and Cannabinoids. The 16-member committee adopted the key features of a systematic review process, conducting an extensive search of relevant databases and considered 10,000 recent abstracts to determine their relevance. Primacy was given to recently published systematic reviews and primary research that studied one of the committee's 11 prioritized health endpoints- therapeutic effects; cancer incidence; cardiometabolic risk; respiratory disease; immune function; injury and death; prenatal, perinatal and postnatal outcomes; psychosocial outcomes; mental health; problem Cannabis use; and Cannabis use and abuse of other substances. The committee developed standard language to categorize the weight of evidence regarding whether Cannabis or cannabinoids use for therapeutic purposes are an effective or ineffective treatment for the prioritized health endpoints of interest. In the Therapeutics chapter reviewed here, the report concluded that there was conclusive or substantial evidence that Cannabis or cannabinoids are effective for the treatment of pain in adults; chemotherapy-induced nausea and vomiting and spasticity associated with multiple sclerosis. Moderate evidence was found for secondary sleep disturbances. The evidence supporting improvement in appetite, Tourette syndrome, anxiety, posttraumatic stress disorder, cancer, irritable bowel syndrome, epilepsy and a variety of neurodegenerative disorders was described as limited, insufficient or absent. A chapter of the NASEM report enumerated multiple barriers to conducting research on Cannabis in the US that may explain the paucity of positive therapeutic benefits in the published literature to date. PMID- 29325792 TI - Chronic obstructive pulmonary disease and community acquired pneumonia: Additional studies are required. PMID- 29325793 TI - Mucocutaneous hyperpigmentation. PMID- 29325794 TI - Association of Posture and Ambulation With Function 30 Days After Hospital Discharge in Older Adults with Heart Failure. AB - PURPOSE: The aim of this work was to investigate the predictive value of in hospital posture and ambulatory activity for 30 days following discharge on functional status in older patients with heart failure. METHODS AND RESULTS: We undertook a prospective observational pilot study of 27 patients (78 +/- 9.8 y, 51.8% female) admitted with heart failure. Participants wore 2 inclinometric accelerometers to record posture in-hospital and an ankle accelerometer to record ambulatory activity in-hospital and 30 days after discharge. Function was assessed on the day after discharge (Timed Up and Go [TUG], Short Physical Performance Battery [SPPB], hand grip strength) and 30 days after discharge. Length of stay was 5.1 +/- 3.9 days. Participants spent 63.0 +/- 19.2% of their hospital time lying down, 30.2 +/- 18.7% sitting, 5.3 +/- 4.2% standing, and 1.9 +/- 8.6% ambulating. Thirty-day mean post-discharge stepping was 4890 +/- 2285 steps/day. Each 10% increase in hospital lying time was associated with 0.7 s longer TUG time (95% confidence interval [CI] 0.2-1.9) at 30 days. Each 1000 additional daily steps in the post-discharge period was associated with a 0.8 point higher SPPB score (95% CI 0.1-1.0) at 30 days. Handgrip strength was unchanged. CONCLUSIONS: Older patients with heart failure were sedentary during hospitalization, which may contribute to decreased functional performance. Physical activity after discharge may minimize this negative effect. PMID- 29325795 TI - Insertional Mutagenesis Confounds the Mechanism of the Morbid Phenotype of a PLNR9C Transgenic Mouse Line. AB - BACKGROUND: A mouse line with heterozygous transgenic expression of phospholamban carrying a substitution of cysteine for arginine 9 (TgPLNR9C) under the control of alpha-myosin heavy chain (alphaMHC) promoter features dilated cardiomyopathy, heart failure, and premature death. METHODS AND RESULTS: Determination of transgene chromosomal localization by conventional methods shows that in this line the transgenic array of 13 PLNR9C expression cassettes, arranged in a head to-tail tandem orientation, have integrated into the bidirectional promoter of the alphaMHC (Myh6) gene and the gene for the regulatory noncoding RNA Myheart (Mhrt), both of which are known to be involved in cardiac development and pathology. Expression of the noncoding RNA Mhrt in TgPLNR9C mice exhibits profound deregulation, despite the presence of the second, intact allele. CONCLUSIONS: The TgPLNR9C mouse strain is, in the best case, a functionally ambiguous phenocopy of the human PLNR9C heterozygote, because a similar constellation of genetically programmed events can not occur in a patient. Publications featuring "cardiac-specific overexpression" are focused on the phenotype and typically forgo the definition of the transgene integration site or transgene temporal expression profile, so caution should be exercised in attributing clinical relevance to pathologic phenomena observed in alphaMHC driven transgenes. PMID- 29325796 TI - LCZ696 (Sacubitril/Valsartan), an Angiotensin-Receptor Neprilysin Inhibitor, Attenuates Cardiac Hypertrophy, Fibrosis, and Vasculopathy in a Rat Model of Chronic Kidney Disease. AB - BACKGROUND: Chronic kidney disease (CKD) is associated with cardiac hypertrophy, fibrosis, and increased risk of cardiovascular mortality. LCZ696 (sacubitril/valsartan) is a promising agent that has shown significant potential in treatment of heart failure. We hypothesized that LCZ696 is more effective than valsartan alone in the treatment of cardiovascular abnormalities associated with experimental CKD. METHODS AND RESULTS: Male Sprague-Dawley rats underwent 5/6 nephrectomy and were subsequently randomized to no treatment (CKD), 30 mg/kg valsartan (VAL), or 60 mg/kg LCZ696 (LCZ). After 8 weeks, cardiovascular parameters, including markers of inflammation, oxidative stress, mitochondrial abundance/function, hypertrophy, and fibrosis, were measured. Treatment with LCZ resulted in significant improvements in the heart-body weight ratio and serum concentrations of N-terminal pro-B-type natriuretic peptide and fibroblast growth factor 23 along with improvement of kidney function. In addition, LCZ ameliorated aortic fibrosis and cardiac hypertrophy and fibrosis, reduced markers of cardiac oxidative stress and inflammation, and improved indicators of mitochondrial mass/function. Although VAL also improved some of these indices, treatment with LCZ was more effective than VAL alone. CONCLUSIONS: CKD-associated cardiovascular abnormalities, including myocardial hypertrophy, fibrosis, inflammation, oxidative stress, and mitochondrial depletion/dysfunction, were more effectively attenuated by LCZ treatment than by VAL alone. PMID- 29325797 TI - Consequences of Retained Defibrillator and Pacemaker Leads After Heart Transplantation-An Underrecognized Problem. AB - BACKGROUND: Cardiovascular implantable electronic devices (CIEDs) are common in patients undergoing heart transplantation (HT), and complete removal is not always possible at the time of transplantation. METHODS: We retrospectively assessed the frequency of retained CIED leads and clinical consequences in consecutive HT patients from 2013 to 2016. Clinical outcomes included bacteremia, upper-extremity deep venous thrombosis (UEDVT), lead migration, and inability to perform magnetic resonance imaging (MRI). RESULTS: A total of 138 patients (55 +/ 11 years of age, 76% male) were identified; 37 (27%) had retained lead fragments (RLFs) at discharge. Patients with RLFs were older, had longer lead implantation time before HT, and a higher prevalence of dual-coil CIED leads compared with those without RLFs (P < .05 for all). Lead implantation time was identified as an independent predictor for RLFs (P < .05). Patients with RLFs had a higher frequency of DVT compared with the non-RLF group during the 1-year study period (42% vs 21%; P < .04). There was no difference in bacteremia. Fourteen patients (38%) could not undergo clinically indicated MRI. CONCLUSION: RLFs after HT occur commonly and are associated with a higher rate of UEDVT and limit the use of MRI. Although no significant difference was found in the rates of bacteremia between the groups, this finding might be explained by the overall low incidence. Patients with risk factors for RLFs should be identified before transplantation, and complete lead removal should be considered with a multidisciplinary approach. PMID- 29325798 TI - Evaluation of the performance of two tuberculosis interferon gamma release assays (IGRA-ELISA and T-SPOT.TB) for diagnosing Mycobacterium tuberculosis infection. AB - OBJECTIVES: The IGRA-ELISA and T-SPOT.TB are widely used in China. The aim of the study was to evaluate the performance of the two assays in diagnosis Mycobacterium tuberculosis infection. METHODS: Of the 3727 patients in the study, 204 underwent testing using both the T-SPOT.TB and IGRA-ELISA, 1794 were tested using the T-SPOT.TB only, and 1729 were tested using the IGRA-ELISA only. The positive rate and consistency of the two assays were analyzed, and their sensitivity and specificity for diagnosing active tuberculosis were compared. RESULTS: There were no significant differences in the positive rate between the T SPOT.TB test (25.8%) and IGRA-ELISA (28.6%), p = .065. The two assays were highly consistent, with a kappa value of 0.852 (p < .0001) and a total coincidence rate of 92.7%. For the diagnosis of active tuberculosis, the sensitivity and specificity values of the T-SPOT.TB test were 82.9% (107/129) and 78.6% (1309/1665), respectively, and those of IGRA-ELISA were 81.7% (94/115) and 75.2% (1214/1614), respectively. There were no significant differences in sensitivity (p > .05), but the specificity of the T-SPOT.TB test was slightly higher than that of IGRA-ELISA (p = .023). CONCLUSION: Both in terms of diagnosing M. tuberculosis infection and ruling out active tuberculosis, the performance of the IGRA-ELISA-a simple, almost labor-free assay that allows simultaneous processing of a very large number of samples-was well-matched with that of T-SPOT.TB test. However, IGRAs cannot be used as the only test to diagnose active tuberculosis. PMID- 29325799 TI - Elevated circulating homocysteine and high-sensitivity C-reactive protein jointly predicts post-stroke depression among Chinese patients with acute ischemic stroke. AB - BACKGROUND: Homocysteine (HCY) and high sensitivity C reactive protein (hs-CRP) were suggested to be involved in post-stroke depression (PSD), which is a frequent mood disorder after stroke. However, the combined effect of HCY and hs CRP on PSD remains unclear. METHODS: A total of 598 acute ischemic stroke patients from 7 of 26 centers participating in the China Antihypertensive Trial in Acute Ischemic Stroke with HCY or hs-CRP measurements were included in this analysis. PSD status was evaluated by 24-item Hamilton Depression Rating Scale at 3 months after stroke. RESULTS: Two hundred and forty-one (40.30%) participants were considered as PSD. HCY and hs-CRP levels were not significantly different between PSD and non-PSD patients. Interesting, in a maximally adjusted model, the odds ratio (95% confidence interval) of PSD was 1.90 (1.18-3.06) for coexistence of HCY >= 14.65 MUmol/l and hs-CRP >= 1.90 mg/l compared with the other levels (HCY < 14.65 MUmol/l and/or hs-CRP < 1.90 mg/l). Adding combination of HCY and hs CRP to a model containing conventional risk factors could significantly improve risk reclassification for PSD. CONCLUSIONS: Coexistence of both higher HCY and higher hs-CRP in the acute phase of ischemic stroke were associated with subsequent PSD, independently of established conventional risk factors. PMID- 29325800 TI - Platelet to lymphocyte ratio is a predictive marker of prognosis and therapeutic effect of postoperative chemotherapy in non-metastatic esophageal squamous cell carcinoma. AB - Increasing evidence has indicated that inflammatory biomarkers, including the neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), and prognostic nutritional index (PNI), can be used as prognostic indicators in esophageal squamous cell carcinoma (ESCC). However, the best predictor for prognosis in ESCC remains controversial. Few studies have focused on the association between inflammatory biomarkers and postoperative chemotherapy. A cohort of 515 non-metastatic ESCC patients was retrospectively reviewed. Harrell's concordance index (c-index) was used to identify the optimal cut-off values of the inflammatory markers, and their prognostic value was compared. Cox multivariate analysis indicated that, among these inflammatory biomarkers, PLR (>=133 vs. <133) was the only independent prognostic factor for poor OS [hazard ratio = 1.370, 95% confidence intervals = 1.076-1.745, p = .011]. The c-index values of PLR were higher compared with NLR and PNI. For patients with PLR < 133, the surgery plus chemotherapy group had significantly longer OS than the surgery group alone (p = .004), but the significant difference of OS between these two groups was not observed in patients with PLR >= 133 (p = .624). PLR is a predictive marker of prognosis and therapeutic effect of postoperative chemotherapy in non-metastatic ESCC. PMID- 29325801 TI - Editorial: The role of medical physics in lung SBRT. AB - Stereotactic body radiation therapy (SBRT) has become a standard treatment for non-operable patients with early stage non-small cell lung cancer (NSCLC). In this context, medical physics community has largely helped in the starting and the growth of this technique. In fact, SBRT requires the convergence of many different features for delivering large doses in few fractions to small moving target in an heterogeneous medium. The special issue of last month, was focused on the different physics challenges in lung SBRT. Eleven reviews were presented, covering: imaging for treatment planning and for treatment assessment; dosimetry and planning optimization; treatment delivery possibilities; image guidance during delivery; radiobiology. The current cutting edge role of medical physics was reported. We aimed to give a complete overview of different aspects of lung SBRT that would be of interest to both physicists implementing this technique in their institutions and more experienced physicists that would be inspired to start research projects in areas that still need further developments. We also feel that the role that medical physicists have played in the development and safe implementation of SBRT, particularly in lung region, can be taken as an excellent example to be translated to other areas, not only in Radiation Oncology but also in other health sectors. PMID- 29325802 TI - Utilization of large volume zwitterionic hydrophilic interaction liquid chromatography for the analysis of polar pharmaceuticals in aqueous environmental samples: Benefits and limitations. AB - Benefits and limitations of HILIC were studied for the analysis of extreme polar organic contaminants in aqueous environmental matrices. A sensitive analytical method was developed and validated for the detection of 11 pharmaceuticals, 15 pharmaceutical metabolites and transformation products and the artificial sweetener acesulfame in aqueous environmental samples. The analytical method consisted of a simple and non-specific sample preparation based on freeze-drying followed by detection with large injection volume (70 MUL) zwitterionic HILIC-ESI MS/MS. Robustness studies showed a high sensitivity of the retention times and peak shapes to variations of the acetonitrile/water ratio of both the eluent and the diluent. Thus, a thorough sample and eluent preparation is required to obtain reproducible results. Extreme matrix effects of >200% were observed for emtricitabine and acyclovir, which could be traced to the co-elution of nitrate and chloride, respectively. These matrix effects and those of other analytes could be efficiently compensated by using deuterated, 13C and 15N-labeled internal standards. The developed method was able to detect the selected 27 analytes in treated wastewater, surface water and groundwater down to limit of quantification (LOQ) in the lower ng/L range. Appreciable concentrations were detected, ranging up to 110 MUg/L (guanyl urea) in treated wastewater, up to 5.1 MUg/L (oxipurinol) in surface water and up to 6.1 MUg/L (acesulfame) in groundwater. In a German drinking water, only the X-ray contrast medium diatrizoate and the artificial sweetener acesulfame were quantified above LOQ with 0.19 MUg/L and 0.35 MUg/L, respectively. PMID- 29325803 TI - Coronary artery disease in athletes: An adverse effect of intense exercise? AB - Regular physical exercise is responsible for various health benefits, and is recommended for primary and secondary cardiovascular (CV) prevention. Despite these recognized benefits, various clinical events can occur in athletes, including acute myocardial infarction and sudden cardiac death (SCD); the main cause of SCD in veteran athletes is coronary artery disease (CAD). The relationship between intense exercise training and CAD is controversial, and a U shaped association has been hypothesized. If this is the case, screening for subclinical CAD in older athletes may be justified, and various different methodologies have been proposed. However, the methodology for screening veteran athletes is not consensual, and several markers of CAD, in addition to clinical CV risk factors, could improve risk stratification in this population. In the present paper we review the published data on CAD in athletes, focusing on the relationship between the dose of exercise and CAD, as well as the implications for pre-participation screening of veteran athletes. PMID- 29325804 TI - Heart failure in numbers: Estimates for the 21st century in Portugal. AB - INTRODUCTION AND OBJECTIVE: Heart failure is a major public health problem that affects a large number of individuals and is associated with high mortality and morbidity. This study aims to estimate the probable scenario for HF prevalence and its consequences in the short-, medium- and long-term in Portugal. METHODS: This assessment is based on the EPICA (Epidemiology of Heart Failure and Learning) project, which was designed to estimate the prevalence of chronic heart failure in mainland Portugal in 1998. Estimates of heart failure prevalence were performed for individuals aged over 25 years, distributed by age group and gender, based on data from the 2011 Census by Statistics Portugal. RESULTS: The expected demographic changes, particularly the marked aging of the population, mean that a large number of Portuguese will likely be affected by this syndrome. Assuming that current clinical practices are maintained, the prevalence of heart failure in mainland Portugal will increase by 30% by 2035 and by 33% by 2060, compared to 2011, resulting in 479 921 and 494 191 affected individuals, respectively. CONCLUSIONS: In addition to the large number of heart failure patients expected, it is estimated that the hospitalizations and mortality associated with this syndrome will significantly increase its economic impact. Therefore, it is extremely important to raise awareness of this syndrome, as this will favor diagnosis and early referral of patients, facilitating better management of heart failure and helping to decrease the burden it imposes on Portugal. PMID- 29325805 TI - Reduced plaque size and inflammation in the APP23 mouse model for Alzheimer's disease after chronic application of polymeric nanoparticles for CNS targeted zinc delivery. AB - A local dyshomeostasis of zinc ions in the vicinity of amyloid aggregates has been proposed in Alzheimer's disease (AD) due to the sequestration of zinc in senile plaques. While an increase in zinc levels may promote the aggregation of amyloid beta (Abeta), increased brain zinc might also be beneficial rescuing some pathological alterations caused by local zinc deficiency. For example, increased Abeta degradation by metalloproteinases, and a reduction in inflammation can be hypothesized. In addition, zinc may allow a stabilization of the number of synapses in AD brains. Thus, to evaluate whether altering zinc-levels within the brain is a promising new target for the prevention and treatment of AD, we employed novel zinc loaded nanoparticles able to deliver zinc into the brain across the blood-brain barrier. We performed in vivo studies using wild type (WT) and APP23 mice to assess plaque load, inflammatory status and synapse loss. Furthermore, we performed behavioral analyses. After chronically injecting these nanoparticles for 14 days, our results show a significant reduction in plaque size and effects on the pro-inflammatory cytokines IL-6 and IL-18. On behavioral level we could not detect negative effects of increased brain zinc levels in APP23 mice and treatment with g7-NP-Zn normalized the observed hyperlocomotion of APP23 mice. Therefore, we conclude that a targeted increase in brain zinc levels may have beneficial effects in AD. PMID- 29325806 TI - RIFM fragrance ingredient safety assessment, pentanedioic acid, 1,5-dimethyl ester, CAS Registry Number 1119-40-0. PMID- 29325807 TI - RIFM fragrance ingredient safety assessment, dodecanenitrile, CAS Registry Number 2437-25-4. PMID- 29325808 TI - Dutch breast reconstruction guideline. AB - Treatment of breast cancer is complex and multidisciplinary by nature, with protocols that are updated continuously. During preoperative multidisciplinary team meetings, regularly there is discussion between team members regarding optimal timing and type of breast reconstruction, due to conflicting interests of oncological and reconstructive treatments. Therefore, a multidisciplinary, evidence-based guideline for breast reconstruction in women undergoing breast conserving therapy or mastectomy for breast cancer, or following prophylactic mastectomy was developed by a multidisciplinary working group. The guideline was drafted in accordance with the AGREE II instrument, designed to assess the quality of guidelines with broad international support. For the recommendations, scientific evidence was considered together with other key aspects, such as working group member expertise, patient preferences, costs, availability of facilities and/or organizational aspects. Recommendations provide an answer to the primary questions, and are based on the best scientific evidence available together with the most important considerations by the working group. In accordance with the GRADE method, the level of scientific evidence and the importance given to considerations by the working group jointly determined the strength of the recommendation. The guideline aims to provide practical guidance for plastic surgeons and other members of the multidisciplinary breast cancer team. The implementation of the present breast reconstruction guideline may contribute to optimizing the delivery of care and support for breast reconstruction patients, it may stimulate evidence-based plastic surgery, it may reduce undesirable variation in clinical practice between health care providers, and improve the overall quality of life of breast reconstruction patients. PMID- 29325809 TI - Spanish validation of the Exercise Therapy Burden Questionnaire (ETBQ) for the assessment of barriers associated to doing physical therapy for the treatment of chronic illness. AB - BACKGROUND AND OBJETIVE: To validate the Spanish version of the Exercise Therapy Burden Questionnaire (ETBQ) for the assessment of barriers associated to doing physical therapy for the treatment of chronic ailments. PATIENTES AND METHODS: A sample of 177 patients, 55.93% men and 44.07% women, with an average age of 51.03+/-14.91 was recruited. The reliability of the questionnaire was tested with Cronbach's alpha coefficient, and the validity of the instrument was assessed through the divergent validation process and factor analysis. RESULTS: The factor analysis was different to the original questionnaire, composed of a dimension, in this case determined three dimensions: (1) General limitations for doing physical exercise. (2) Physical limitations for doing physical exercise. (3) Limitations caused by the patients' predisposition to their exercises. The reliability of the test-retest was measured through the intraclass correlation coefficient (ICC) and the Bland-Altman plot. Cronbach's alpha was 0.8715 for the total ETBQ. The ICC of the test-retest was 0.745 and the Bland-Altman plot showed no systematic trend. CONCLUSION: We have obtained the translated version in Spanish of the ETBQ questionnaire. PMID- 29325810 TI - Current and Future Initiatives for Radiation Oncology at the National Cancer Institute in the Era of Precision Medicine. PMID- 29325811 TI - Personalized Medicine Versus Quality: Contradictory or Mutually Dependent? PMID- 29325812 TI - Transcatheter mitral valve replacement in mitral annulus calcification - "The art of computer simulation". AB - There is considerable interest in transcatheter prosthetic valve treatment for mitral valve disease in high-risk individuals. Although the presence of mitral annular calcium (MAC) may provide an anchoring zone for such devices, results to date have been modest with reported technical failure rates approaching 30% in specialist centers. This in part relates to the risk of left ventricular outflow tract obstruction and device dislodgment but also to the lack of specific imaging guidelines to plan for such procedures. We present the use of finite element analysis and computer simulation based on cardiac CT in three patients with severe MAC in whom transcatheter devices were considered. In the first two cases, the computer simulations were performed after the clinical procedure and were concordant with the clinical outcome. For the third case, computer simulation was performed prior to the clinical procedure. This indicated unsuitability for transcatheter device deployment and a subsequent medical management was adopted. Overall, our initial results suggest that computer simulation may have the potential to improve patient selection for transcatheter mitral valve replacement in the presence of significant MAC. PMID- 29325813 TI - Cardiac function and exercise adaptation in 8 children with LPIN1 mutations. AB - INTRODUCTION: Lipin-1 deficiency is a major cause of rhabdomyolysis that are precipitated by febrile illness. The prognosis is poor, with one-third of patients dying from cardiac arrest during a crisis episode. Apart from acute rhabdomyolysis, most patients are healthy, showing normal clinical and cardiac ultrasound parameters. PATIENTS AND METHODS: We report cardiac and exercise examinations of 8 children carrying two LPIN1 mutations. The examinations were performed outside of a myolysis episode, but one patient presented with fever during one examination. RESULTS: All but one patient displayed normal resting cardiac function, as determined by echocardiography. One patient exhibited slight left ventricular dysfunction at rest and a lack of increased stroke volume during cycle ramp exercise. During exercise, peripheral muscle adaptation was impaired in 2 patients compared to healthy controls: they presented an abnormal increase in cardiac output relative to oxygen uptake: dQ/dVO2=8.2 and 9.5 (>2DS of controls population). One patient underwent 2 exercise tests; during one test, the patient was febrile, leading to acute rhabdomyolysis in the following hours. He exhibited changes in recovery muscle reoxygenation parameters and an increased dQ/dVO2 during exercise compared with that under normothermia (7.9 vs 6), which did not lead to acute rhabdomyolysis. The four patients assessed by cardiac 1H magnetic resonance spectroscopy exhibited signs of intracardiac steatosis. CONCLUSION: We observed abnormal haemodynamic profiles during exercise in 3/8 patients with lipin-1 deficiency, suggesting impaired muscle oxidative phosphorylation during exercise. Fever appeared to be an aggravating factor. One patient exhibited moderate cardiac dysfunction, which was possibly related to intracardiac stored lipid toxicity. PMID- 29325814 TI - Corrigendum to "Development of hypomelanotic macules is associated with constitutive activated mTORC1 in tuberous sclerosis complex" [Mol. Genet. Metab. 120(4) (Apr 2017) 384-391]. PMID- 29325815 TI - Intersectionality and the LGBT Cancer Patient. AB - OBJECTIVES: To present the ways in which race, ethnicity, class, gender, and sexual orientation interact in the context of cancer risk, access to care, and treatment by health care providers. Cancer risk factors, access to care, and treatment for lesbian, gay, bisexual, and transgender (LGBT) patients are discussed within the context of intersectionality and cultural humility. DATA SOURCES: Peer reviewed articles, cancer organizations, and clinical practice. CONCLUSION: LGBT patients have multiple identities that intersect to create unique experiences. These experiences shape their interactions with the health care system with the potential for positive or negative consequences. More data is needed to describe the outcomes of those experiences and inform clinical practice. IMPLICATIONS FOR NURSING PRACTICE: Oncology nurses have an obligation to acknowledge patients' multiple identities and use the practice of cultural humility to provide individualized, patient-centered care. PMID- 29325816 TI - LGBT Cultural Competence and Interventions to Help Oncology Nurses and Other Health Care Providers. AB - OBJECTIVES: To define and give an overview of the importance of lesbian, gay, bisexual, and transgender (LGBT) cultural competency and offer some initial steps on how to improve the quality of care provided by oncology nurses and other health care professionals. DATA SOURCES: A review of the existing literature on cultural competency. CONCLUSION: LGBT patients experience cancer and several other diseases at higher rates than the rest of the population. The reasons for these health care disparities are complex and include minority stress, fear of discrimination, lower rates of insurance, and lack of access to quality, culturally competent care. Addressing the health care disparities experienced by LGBT individuals and families requires attention to the actual needs, language, and support networks used by patients in these communities. Training on how to provide quality care in a welcoming and non-judgmental way is available and can improve health equity. IMPLICATIONS FOR NURSING PRACTICE: Health care professionals and institutions that acquire cultural competency training can improve the overall health of LGBT patients who currently experience significant health care disparities. PMID- 29325817 TI - Cancer Screening Considerations and Cancer Screening Uptake for Lesbian, Gay, Bisexual, and Transgender Persons. AB - OBJECTIVES: To describe the current state of cancer screening and uptake for lesbian, gay, bisexual, and transgender (LGBT) persons and to propose cancer screening considerations for LGBT persons. DATA SOURCES: Current and historic published literature on cancer screening and LGBT cancer screening; published national guidelines. CONCLUSION: Despite known cancer risks for members of the LGBT community, cancer screening rates are often low, and there are gaps in screening recommendations for LGBT persons. We propose evidence-based cancer screening considerations derived from the current literature and extant cancer screening recommendations. IMPLICATIONS FOR NURSING PRACTICE: The oncology nurse plays a key role in supporting patient preventive care and screening uptake through assessment, counseling, education, advocacy, and intervention. As oncology nurses become expert in the culturally competent care of LGBT persons, they can contribute to the improvement of quality of care and overall well-being of this health care disparity population. PMID- 29325818 TI - Simultaneous determination of voriconazole, posaconazole, itraconazole and hydroxy-itraconazole in human plasma using LCMS/MS. AB - INTRODUCTION: Invasive fungal infections are an increasing cause of mortality and morbidity in high risk patient populations such as those on immunosuppressive therapy. Triazole antifungals are recommended for the prevention and treatment of such infections. The aim of this study was to develop and validate a simple, sensitive and robust LCMS/MS method for the simultaneous analysis in human plasma of three frequently used antifungal drugs: voriconazole, posaconazole, and itraconazole. METHODS: Precipitation reagent, containing deuterated internal standards, is added to 50MUL of plasma. The vials are vortexed before centrifugation. The organic supernatant is transferred to a polypropylene vial and 1MUL is injected into the Waters Acquity(r) Ultra Performance Liquid Chromatography system coupled with a Waters Acquity(r) TQ Detector system. Chromatographic separation is achieved on a BEH C18 column using gradient elution with mobile phases consisting of 2mM ammonium acetate with 0.1% formic acid in water and methanol. Run time is <5min between injections. RESULTS: The evaluation of the LCMS/MS triazole method showed good precision (intra-assay CVs<6.7%, inter assay CVs<8.3%). The lower limit of quantitation for all antifungal triazoles tested was 0.10mg/L. Passing Bablok comparisons of voriconazole (n=50) and posaconazole (n=50) showed good correlation with the current HPLC method (Voriconazole LCMS=0.94(HPLC)+0.03, r2=0.99; Posaconazole LCMS=1.18(HPLC)-0.04, r2=0.95). Passing Bablok comparisons of itraconazole and hydroxy-itraconazole (n=18) showed good agreement with an external referral laboratory's antifungal LCMS/MS method (Itraconazole LCMS=1.00(referral lab)+0.01, r2=0.99; Hydroxy Itraconazole LCMS=1.05(referral lab)+0.04, r2=0.99). External quality assurance samples for posaconazole and voriconazole (n=12, UK NEQAS Antifungal Pilot Panel) were assayed 'blind' and results were in good agreement with consensus mean values (both r2=0.99). CONCLUSION: The rapid pre-analytical sample preparation procedure, short chromatographic time, limit of quantitation and linear range make this LCMS/MS method suitable for determination of plasma voriconazole, posaconazole, itraconazole and hydroxy-itraconazole levels in a high throughput laboratory. PMID- 29325820 TI - An assessment of shedding with the oral rabies virus vaccine strain SPBN GASGAS in target and non-target species. AB - A safety requirement for live vaccines is investigating possible shedding in recipients since the presence of replication competent vaccine in secretions could result in direct and indirect horizontal transmission. This is especially relevant for oral rabies vaccine baits that are deliberately distributed into the environment. In the current study, survival of an oral rabies virus vaccine, SPBN GASGAS, was examined in excretions from different target and non-target species; red fox, raccoon dog, small Indian mongoose, raccoon, striped skunk, domestic dog, domestic cat and domestic pig. Saliva - and (pooled) fecal samples collected at different time points after oral administration of the vaccine strain were examined for the presence of viral RNA (rt-PCR). All PCR-positive and a subset of PCR-negative samples were subsequently investigated for the presence of infectious virus by isolation in cell culture (RTCIT). Up to 7 days post vaccine administration viral RNA could be detected in 50 of 758 fecal samples but no infectious virus was detected in any of the examined PCR-positive fecal samples. In contrast, RNA-fragments were detected in 248 of 1053 saliva swabs for an extended period (up to 10 days) after vaccine administration, but viable virus was only present during the first hours post vaccine administration in 38 samples. No infectious vaccine virus was isolated in saliva swabs taken 24 h or more after vaccine administration. Hence, no active shedding of the vaccine virus SPBN GASGAS after oral administration occurred and the virus isolated during the initial hours was material originally administered and not a result of virus replication within the host. Thus, potential horizontal transmission of this vaccine virus is limited to a short period directly after vaccine bait uptake. It can be concluded that the environmental risks associated with shedding after distributing vaccine baits containing SPBN GASGAS are negligible. PMID- 29325819 TI - Explanations for the high potency of HPV prophylactic vaccines. AB - HPV L1 virus-like particle (VLP) vaccines administered in a prime/boost series of three injections over six months have demonstrated remarkable prophylactic efficacy in clinical trials and effectiveness in national immunization programs with high rates of coverage. There is mounting evidence that the vaccines have similar efficacy and effectiveness even when administered in a single dose. The unexpected potency of one dose of these VLP vaccines may largely be attributed to structural features of the particles, which lead to the efficient generation of long-lived antigen-specific antibody-producing cells and unique features of the virus life cycle that make the HPV virions highly susceptible to antibody mediated inhibition of infection. PMID- 29325821 TI - DNA vaccine encoding myristoylated membrane protein (MMP) of rock bream iridovirus (RBIV) induces protective immunity in rock bream (Oplegnathus fasciatus). AB - Rock bream iridovirus (RBIV) causes severe mass mortalities in rock bream (Oplegnathus fasciatus) in Korea. In this study, we investigated the potential of viral membrane protein to induce antiviral status protecting rock bream against RBIV infection. We found that fish administered with ORF008L (myristoylated membrane protein, MMP) vaccine exhibited significantly higher levels of survival compared to ORF007L (major capsid protein, MCP). Moreover, ORF008L-based DNA vaccinated fish showed significant protection at 4 and 8 weeks post vaccination (wpv) than non-vaccinated fish after infected with RBIV (6.7 * 105) at 23 degrees C, with relative percent survival (RPS) of 73.36% and 46.72%, respectively. All of the survivors from the first RBIV infection were strongly protected (100% RPS) from re-infected with RBIV (1.1 * 107) at 100 dpi. In addition, the MMP (ORF008L)-based DNA vaccine significantly induced the gene expression of TLR3 (14.2-fold), MyD88 (11.6-fold), Mx (84.7-fold), ISG15 (8.7 fold), PKR (25.6-fold), MHC class I (13.3-fold), Fas (6.7-fold), Fas ligand (6.7 fold), caspase9 (17.0-fold) and caspase3 (15.3-fold) at 7 days post vaccination in the muscle (vaccine injection site). Our results showed the induction of immune responses and suggest the possibility of developing preventive measures against RBIV using myristoylated membrane protein-based DNA vaccine. PMID- 29325822 TI - Parental vaccine hesitancy in Italy - Results from a national survey. AB - In Italy, in 2016, we conducted a cross-sectional survey to estimate vaccine hesitancy and investigate its determinants among parents of children aged 16-36 months. Data on parental attitudes and beliefs about vaccinations were collected through a questionnaire administered online or self-administered at pediatricians' offices and nurseries. Parents were classified as pro-vaccine, vaccine-hesitant or anti-vaccine, according to self-reported tetanus and measles vaccination status of their child. Multivariable logistic regression was used to investigate factors associated with hesitancy. A total of 3130 questionnaires were analysed: 83.7% of parents were pro-vaccine, 15.6% vaccine-hesitant and 0.7% anti-vaccine. Safety concerns are the main reported reason for refusing (38.1%) or interrupting (42.4%) vaccination. Anti-vaccine and hesitant parents are significantly more afraid than pro-vaccine parents of short-term (85.7 and 79.7% vs 60.4%) and long-term (95.2 and 72.3% vs 43.7%) vaccine adverse reactions. Most pro-vaccine and hesitant parents agree about the benefits of vaccinations. Family pediatricians are considered a reliable source of information by most pro-vaccine and hesitant parents (96.9 and 83.3% respectively), against 45% of anti-vaccine parents. The main factors associated with hesitancy were found to be: not having received from a paediatrician a recommendation to fully vaccinate their child [adjusted odds ratio (AOR): 3.21, 95% CI: 2.14-4.79], having received discordant opinions on vaccinations (AOR: 1.64, 95% CI: 1.11-2.43), having met parents of children who experienced serious adverse reactions (AOR: 1.49, 95% CI: 1.03 2.15), and mainly using non-traditional medical treatments (AOR: 2.05, 95% CI: 1.31-3.19). Vaccine safety is perceived as a concern by all parents, although more so by hesitant and anti-vaccine parents. Similarly to pro-vaccine parents, hesitant parents consider vaccination an important prevention tool and trust their family pediatricians, suggesting that they could benefit from appropriate communication interventions. Training health professionals and providing homogenous information about vaccinations, in line with national recommendations, are crucial for responding to their concerns. PMID- 29325823 TI - Photo(geno)toxicity changes associated with hydroxylation of the aromatic chromophores during diclofenac metabolism. AB - Diclofenac (DCF) can cause adverse reactions such as gastrointestinal, renal and cardiovascular disorders; therefore, topical administration may be an attractive alternative to the management of local pain in order to avoid these side effects. However, previous studies have shown that DCF, in combination with sunlight, displays capability to induce photosensitivity disorders. In humans, DCF is biotransformed into hydroxylated metabolites at positions 4' and 5 (4'OH-DCF and 5OH-DCF), and this chemical change produces non negligible alterations of the drug chromophore, resulting in a significant modification of its light-absorbing properties. In the present work, 5OH-DCF exhibited higher photo(geno)toxic potential than the parent drug, as shown by several in vitro assays (3T3 NRU phototoxicity, DNA ssb gel electrophoresis and COMET), whereas 4'OH-DCF did not display significant photo(geno)toxicity. This could be associated, at least partially with their more efficient UV-light absorption by 5OH-DCF metabolite and with a higher photoreactivity. Interestingly, most of the cellular DNA damage photosensitized by DCF and 5OH-DCF was repaired by the cells after several hours, although this effect was not complete in the case of 5OH-DCF. PMID- 29325824 TI - In utero combined di-(2-ethylhexyl) phthalate and diethyl phthalate exposure cumulatively impairs rat fetal Leydig cell development. AB - Phthalate diesters, including di-(2-ethylhexyl) phthalate (DEHP) and diethyl phthalate (DEP), are chemicals to which humans are ubiquitously exposed. Humans are exposed simultaneously to multiple environmental chemicals, including DEHP and DEP. There is little information available about how each chemical may interact to each other if they were exposed at same time. The present study investigated effects of the combinational exposure of rats to DEP and DEHP on fetal Leydig cell development. The results showed that the gestational (GD12-20) exposure of DEP + DEHP resulted in synergistic and/or dose-additive effects on the development of fetal Leydig cell. The lowest observed adverse-effect levels (LOAEL) for fetal Leydig cell (aggregation and cell size), and StAR expressions were of 10 mg/kg and, lower than when these chemicals were exposed alone. Also, mathematical modeling the response curves supports the dose-addition model over integrated-addition model. Overall, these data demonstrate that individual phthalate with a similar mechanism of action can elicit cumulative, dose additive, and sometimes synergistic, effects on the development of male reproductive system when administered as a mixture. PMID- 29325825 TI - [Thromboembolic disease in pediatric oncology]. AB - The survival rate of children with cancer is now close to 80 %, as a result of continuous improvement in diagnostic and treatment procedures. Prevention and treatment of treatment-associated complications is now a major challenge. Thromboembolic venous disease, due to multifactorial pathogenesis, is a frequent complication (up to 40 % asymptomatic thrombosis in children with cancer), responsible for significant morbidity. Predominantly in children with acute lymphoblastic leukemia, lymphoma, or sarcoma, thromboembolic disease justifies primary prophylaxis in certain populations at risk, whether genetic or environmental. The curative treatment, well codified, is based on the administration of low-molecular-weight heparin. In the absence of robust pediatric prospective studies, this article proposes a concise decision tree summarizing the preventive and curative strategy. PMID- 29325826 TI - Myoclonic absence seizures with complex gestural automatisms. AB - Epilepsy with myoclonic absences is a rare generalized epilepsy syndrome with distinctive seizures. Two unrelated children had mild developmental impairment and onset of myoclonic-absences at 3 and 8 years. Seizures were characterized by bilateral 3 Hz myoclonic jerks superimposed on tonic abduction of the upper limbs. Events lasted 10-60 s, and complex gestural automatisms were often observed; in one case, a boy undid his seatbelt and attempted to exit a moving vehicle. Post-ictally, both children immediately regained awareness without recollection of their actions. Ictal EEGs showed 3 Hz generalized spike-wave. Complex automatisms have not been described in myoclonic absence seizures. This generalized seizure type can be confused with focal seizures when these ictal behaviours occur. PMID- 29325827 TI - Efficient oligo nucleotide mediated CRISPR-Cas9 gene editing in Aspergilli. AB - CRISPR-Cas9 technologies are revolutionizing fungal gene editing. Here we show that survival of specific Cas9/sgRNA mediated DNA double strand breaks (DSBs) depends on the non-homologous end-joining, NHEJ, DNA repair pathway and we use this observation to develop a tool, TAPE, to assess protospacer efficiency in Aspergillus nidulans. Moreover, we show that in NHEJ deficient strains, highly efficient marker-free gene targeting can be performed. Indeed, we show that even single-stranded oligo nucleotides efficiently work as repair templates of specific Cas9/sgRNA induced DNA DSBs in A. nidulans, A. niger, and in A. oryzae indicating that this type of repair may be wide-spread in filamentous fungi. Importantly, we demonstrate that by using single-stranded oligo nucleotides for CRISPR-Cas9 mediated gene editing it is possible to introduce specific point mutations as well gene deletions at efficiencies approaching 100%. The efficiency of the system invites for multiplexing and we have designed a vector system with the capacity of delivering Cas9 and multiple sgRNAs based on polymerase III promoters and tRNA spacers. We show that it is possible to introduce two point mutations and one gene insertion in one transformation experiment with a very high efficiency. Our system is compatible with future high-throughput gene editing experiments. PMID- 29325828 TI - Misleading conclusions on the effects of sleeve gastrectomy on body composition due to statistical errors. PMID- 29325829 TI - Allogeneic Stem Cell Transplantation for Advanced Myelodysplastic Syndrome: Comparison of Outcomes between CD34+ Selected and Unmodified Hematopoietic Stem Cell Transplantation. AB - In this study, we compared transplantation outcomes of allogeneic hematopoietic stem cell transplantation (HSCT) in patients with advanced myelodysplastic syndrome (MDS) who received a CD34+ cell-selected and those who received an unmodified allograft. This analysis initially included 181 patients, 60 who received a CD34+ cell-selected transplant and 121 who received an unmodified transplant. Owing to significant differences in disease characteristics, the analysis was limited to patients with <10% blasts before HSCT (n = 145). Two groups were defined: low risk, with low- and intermediate-risk cytogenetics (CD34+, n = 39; unmodified, n = 46), and high risk: poor and very poor risk cytogenetics (CD34+, n = 19; unmodified, n = 41). In the low-risk group, the incidence of grade II-IV acute graft-versus-host disease (aGVHD) at 1 year post transplantation was 18% in the CD34+ subgroup versus 41.3% in the unmodified subgroup (P = .015). There were no differences between the subgroups in the incidence of grade III-IV aGVHD. The incidence of chronic graft-versus-host disease (cGVHD) at 3 years in the 2 subgroups was 5.3% and 56%, respectively (P < .001). At 3 years post-transplantation, relapse, overall survival (OS), and relapse-free survival (RFS) were similar in the CD34+ and unmodified subgroups: 8.1% versus 19.4% (P = .187), 58.5% versus 53.7% (P = .51), and 59.5% versus 52.4% (P = .448). However, the composite outcome combining extensive cGVHD-free status and relapse-free status (CRFS) at 3 years was 59.5% in the CD34+ group versus 19.2% in the unmodified group (P < .001). In the high-risk group, grade II IV aGVHD at 1 year was 31.6% in the CD34+ subgroup versus 24.4% in the unmodified subgroup (P = .752). There were no differences between the subgroups in the incidence of grade III-IV aGVHD. The incidence of cGVHD at 3 years in the 2 subgroups was 0% versus 27.6% (P = .013). At 3 years post-transplantation, relapse, OS, RFS, and CRFS in the 2 subgroups were 31.6% versus 69.3% (P = .007), 35.5% versus 14.5% (P = .068), 31.6% versus 10.7% (P = .045), and 31.6% versus 6.1% (P = .001), respectively. Cytogenetic abnormalities at diagnosis and transplant type had significant univariate associations with RFS in the high-risk cohort. Only cytogenetics (P = .03) remained associated with this outcome in a multivariate model. OS was similar in the 2 transplant groups; however, CRFS was superior in the CD34+ cell-selected transplant group. PMID- 29325831 TI - Sexual Dysfunction Among Young Men: Overview of Dietary Components Associated With Erectile Dysfunction. AB - BACKGROUND: Sexual dysfunction is relatively common in young men, presenting in diverse manifestations, including erectile dysfunction (ED), for which dietary modifications, including increased intake of dietary antioxidants, have been suggested as promising and cost-efficient approaches. AIM: To assess the consumption of selected dietary antioxidants, in particular flavonoids, in relation to ED symptoms in young men. METHODS: Men 18 to 40 years old were invited to complete an anonymous web-based questionnaire for this case-control study. ED was diagnosed with the International Index of Erectile Function (IIEF) and flavonoid intake was recorded using food-frequency questionnaires, with an emphasis on flavonoid-rich foods such as coffee, fruits, etc. Participants without ED (IIEF score >= 26; n = 264) formed the control group and those with ED (IIEF score < 26; n = 86) formed the case group. OUTCOMES: Dietary flavonoid intake. RESULTS: Men with ED reported a lower median monthly intake of total flavonoids (-2.18 g, 95% CI = -3.15 to -1.21, P < .001) and all flavonoid subclasses (P < .001) compared with controls. Adjustment of intake for age and body mass index showed that consumption of flavonoids 50 mg/day lowered the risk for ED by 32% (odds ratio = 0.68, 95% CI = 0.55-0.85, P < .001). Of all recorded flavonoids, flavones appeared to contribute the most to healthy erectile function. Controls reported a greater consumption of vegetables and fruits, a lower intake of dairy and alcoholic beverages, and a less intense smoking habit compared with cases (P < .001). CLINICAL IMPLICATIONS: Increased intake of fruits, vegetables, and flavonoids decreases the risk of ED in young men. STRENGTH AND LIMITATIONS: The strength of this study stems from the innovative hypothesis, the young age of participants, and the suggested therapeutic effects of cheap dietary components against ED. Limitations include the relatively small sample and cross-sectional design. CONCLUSION: Low flavonoid-in particular flavone-intake is associated with ED in young adult men. Mykoniatis I, Grammatikopoulou MG, Bouras E, et al. Sexual Dysfunction Among Young Men: Overview of Dietary Components Associated With Erectile Dysfunction. J Sex Med 2018;15:176-182. PMID- 29325830 TI - Blood and Marrow Transplant Clinical Trials Network Report on the Development of Novel Endpoints and Selection of Promising Approaches for Graft-versus-Host Disease Prevention Trials. AB - Graft-versus-host disease (GVHD) is a common complication after hematopoietic cell transplantation (HCT) and associated with significant morbidity and mortality. Preventing GVHD without chronic therapy or increasing relapse is a desired goal. Here we report a benchmark analysis to evaluate the performance of 6 GVHD prevention strategies tested at single institutions compared with a large multicenter outcomes database as a control. Each intervention was compared with the control for the incidence of acute and chronic GVHD and overall survival and against novel composite endpoints: acute and chronic GVHD, relapse-free survival (GRFS), and chronic GVHD, relapse-free survival (CRFS). Modeling GRFS and CRFS using the benchmark analysis further informed the design of 2 clinical trials testing GVHD prophylaxis interventions. This study demonstrates the potential benefit of using an outcomes database to select promising interventions for multicenter clinical trials and proposes novel composite endpoints for use in GVHD prevention trials. PMID- 29325832 TI - The PICS Technique: A Novel Approach for Residual Curvature Correction During Penile Prosthesis Implantation in Patients With Severe Peyronie's Disease Using the Collagen Fleece TachoSil. AB - BACKGROUND: Correction of residual curvature during inflatable penile prosthesis (IPP) implantation in patients with Peyronie's disease (PD) by plaque incision and grafting is a common approach. AIM: To present a novel technique for residual curvature correction during IPP implantation using collagen fleece (TachoSil, Baxter Healthcare Corp, Deerfield, IL, USA). METHODS: After the IPP (Titan Touch, Coloplast, Minneapolis, MN, USA) is placed, the implant is inflated maximally. When residual curvature exceeds 40 degrees , the PICS (penile implant in combination with the Sealing technique) technique is performed. The device is deflated, and a circumcising skin incision and penile degloving are performed. After elevation of the neurovascular bundle, the device is reinflated maximally. Plaque incision is performed at the point of maximum curvature using electrocautery. This leads to penile straightening because the tension is removed. In the next step, the defect of the tunica is closed with collagen fleece, which sticks to the tunica and defect without any sutures needed. The neurovascular bundle is reapproximated and the Buck fascia is closed. This is followed by closure of penile skin. OUTCOMES: Primary outcome measurements were straightening rates, operative times, 5-item International Index of Erectile Function (IIEF-5) scores at follow-up, immediate and late complications, and patient satisfaction. RESULTS: The PICS technique was applied to 15 patients. Mean patient age was 61.7 years (52-79 years). Mean residual curvature after IPP was 66.7 degrees (50-90 degrees ). Mean operative time was 117.3 minutes (100 140 minutes). Mean follow-up was 15.1 months (1-29 months). 12 of 15 patients (80%) showed a totally straight penis. 3 patients (20%) had residual curvature of 10 degrees at follow-up, which did not interfere with sexual intercourse. Mean IIEF-5 score at follow-up was 24.2 (22-25). No immediate or late complications occurred. All patients were satisfied with the surgical outcomes. CLINICAL IMPLICATIONS: This novel technique prevents puncture or injury of the device, because the collagen fleece does not require suture fixation into the defect after plaque incision. STRENGTHS AND LIMITATIONS: This technique can be applied to patients with severe PD who display residual curvature greater than 40 degrees after IPP placement. It is a fast approach with low complication rates. Limitations include the small patient population and short follow-up. CONCLUSION: The PICS technique represents a safe and time-saving approach for residual curvature correction during IPP placement in patients with PD and prevents device puncture. Hatzichristodoulou G. The PICS Technique: A Novel Approach for Residual Curvature Correction During Penile Prosthesis Implantation in Patients With Severe Peyronie's Disease Using the Collagen Fleece TachoSil. J Sex Med 2018;15:416-421. PMID- 29325833 TI - Treatment of Graves' disease in children: The Portuguese experience. AB - INTRODUCTION: Graves' disease (GD) is an autoimmune thyroid disease, common in adults but rare in children. The best therapeutic approach remains controversial. OBJECTIVES: To ascertain the current treatment of pediatric GD in Portugal and to assess the clinical and biochemical factors that determine definitive/long-term remission after treatment with antithyroid drugs (ATDs). PATIENTS AND METHODS: A retrospective analysis of data about pediatric GD treatment collected from a nationwide survey conducted by the Portuguese Society of Pediatric Endocrinology and Diabetology from May to August 2013. Population was categorized based on sex, age, use of ATDs, dosage, treatment duration, adverse reactions, thyrotropin receptor-stimulating antibody (TRAB) titer, remission and remission/relapse rates, and definitive treatment, and divided into group A (with ongoing treatment) and group B (with treatment stopped). Group B was subdivided into 'Remission', 'Remission+relapse' and 'No remission' subgroups based on the course of disease. The same parameters were compared between both groups. RESULTS: Survey response rate was 77%; 152 subjects, 116 female, mean age at diagnosis 11.23+/-3.46 years. They all started treatment with ATDs, 70.4% with thiamazole, with a mean treatment duration of 32.38+/-28.29 months, and 5.9% had adverse effects. Remission rate was 32.6%. Lower age at diagnosis correlated with higher remission rates. Treatment duration was longer when propylthiouracil was used. Initial TRAB titer was significantly higher in the 'No remission' group. Surgery and radioiodine were used as second-line treatments. CONCLUSION: Our study results were similar to those reported in the literature. Age and TRAB titer were identified as potential clinical and laboratory determinants of remission. Based on risk/benefit analysis, it was concluded that treatment should be individualized based on age, accessibility to treatments, and physician's experience. PMID- 29325834 TI - A computed-tomography-scan-based template to place the femoral component in accurate rotation with respect to the surgical epicondylar axis in total knee arthroplasty. AB - BACKGROUND: Femoral rotational alignment is considered an essential factor for total knee arthroplasty because malrotation of femoral components results in poor outcomes. To obtain proper alignment, we developed a superimposable computed tomography (CT) scan-based template to intraoperatively determine the accurate surgical epicondylar axis (SEA), and evaluated the effectiveness of this CT template. METHODS: In the experimental group (n=55), three serial slices of CT images, including medial and lateral epicondyles, were merged into a single image, and SEA was overlaid. SEA was traced onto an image of an assumed distal femoral resection level; this combined image was then printed out onto a transparent film as a CT template. Following a distal femoral resection in TKA, SEA was duplicated onto the femoral surface. Thereafter, the posterior condyle was resected parallel to this SEA. In the control group (n=53), posterior condyles were resected at three degrees of the external rotation from the posterior condylar line (PCL). A posterior condylar angle (PCA) between PCL of the femoral component and SEA was postoperatively evaluated. Positive values indicated external rotation of the femoral component from the SEA. RESULTS: In the experimental group, PCA was 0.01 degrees +/-1.61 degrees , and three cases were considered as outliers (greater than three degrees or less than -3 degrees). Conversely, in the control group, PCA was 0.10 degrees +/-2.4 degrees , and 12 cases were considered as outliers. Consequently, dispersion of PCA data was significantly smaller in the experimental group (P=0.004). CONCLUSIONS: The CT template accurately determined intraoperative SEA. PMID- 29325835 TI - Synthetic mesh vs. allograft extensor mechanism reconstruction in total knee arthroplasty - A systematic review of the literature and meta-analysis. AB - BACKGROUND: Extensor mechanism disruption after total knee arthroplasty (TKA) is a devastating complication. Reconstruction with allograft and synthetic mesh has been described. However, these reports have typically been small case series, and controversy exists with regard to which reconstruction technique is optimal. METHODS: The authors performed a systematic review using PUBMED, MEDLINE, EMBASE, BIOSIS, Clinicaltrials.gov, and Cochrane Database of Systematic Reviews identifying 14 articles meeting inclusion criteria and producing 204 knees for comparison. Studies with repairs performed under full knee extension were included. Case reports and non-English studies were excluded. Available demographics and clinical outcome data were collected from each study. Appropriate statistical analysis was performed to compare the variables. RESULTS: Baseline demographics and patient complexity were similar between the two cohorts. Reconstruction success rates (76% allograft vs. 74% mesh), average time to diagnosis/treatment, Knee Society Scores (KSS), knee range of motion/extensor lag, and complication rates yielded no statistical difference. Synthetic mesh was used more frequently with concomitant revision of components. DISCUSSION: This systematic review shows equivalent success of allograft and synthetic mesh with approximately 25% failure rate in both groups. Periprosthetic joint infection remains a common and significant complication and reason for failure in both groups. Overall, synthetic mesh showed equivalent extensor mechanism reconstruction success as allograft but with much lower cost, near universal availability, lack of disease transmission, and potential for diminishing graft stretch-out. Future research in larger case series or comparative study is needed to help aid in management of this largely unsolved problem in total knee reconstruction. PMID- 29325836 TI - Interleukin-6 and leptin levels are associated with preoperative pain severity in patients with osteoarthritis but not with acute pain after total knee arthroplasty. AB - BACKGROUND: Identifying drivers of pain that can serve as novel drug targets is important for improving perioperative analgesia. Total knee arthroplasty (TKA) is associated with significant postoperative pain. Cytokines contribute to the pathophysiology of osteoarthritis (OA) and associated pain. However, the influence of perioperative cytokine levels after TKA surgery upon postoperative pain remains unexplored. METHODS: We designed a prospective observational study to profile three proinflammatory cytokines, interleukin-6 (IL-6), tumor necrosis factor alpha (TNFalpha), and leptin in serum, synovial, and cerebrospinal fluid of TKA patients perioperatively to determine associations between cytokine levels and pain. We characterized time-trajectories in cytokines pre- and post-surgery and explored their relationships to pain across gender. RESULTS: Preoperative pain, measured by functional pain disability scores (PDQ), was predictive of postoperative pain. There were no gender differences in severity of preoperative pain or acute postoperative pain. Serum IL-6, serum leptin, and synovial fluid leptin were positively correlated with body mass index and preoperative pain severity. Stratification of patients by gender revealed strong correlations between serum IL-6, leptin, and PDQ only in females, suggesting that females may be more sensitive to the nociceptive actions of these cytokines. Although serum IL-6 increased dramatically (and TNFalpha increased modestly) four hours after surgery and remained elevated at 72h; they were not associated with the severity of acute postoperative pain. CONCLUSIONS: Our data suggest that while preoperative chronic pain is predictive of the severity of acute postoperative pain in TKA patients, the pre- and post-operative inflammatory status does not predict postoperative pain. PMID- 29325837 TI - Outcomes of total knee arthroplasty in degenerative osteoarthritic knee with genu recurvatum. AB - BACKGROUND: This study aimed to assess the incidence of genu recurvatum without neuromuscular disorders in knees that underwent navigation-assisted total knee arthroplasty (TKA), to evaluate short-term radiologic and clinical results of navigation-assisted TKA in genu recurvatum, and to evaluate differences in results according to the degree of pre-operative hyperextension and type of implant and insert. METHODS: This study retrospectively reviewed 510 knees that underwent navigation-assisted TKA from January 2005 to December 2011. The incidence of knees that showed hyperextension of >=5 degrees (genu recurvatum) on navigation, and the accompanying alignment were evaluated. It assessed radiologic, intraoperative, and clinical results in recurvatum and control groups by using propensity score matching. RESULTS: A total of 465 knees underwent navigation-assisted TKA for degenerative osteoarthritis. Genu recurvatum was observed in 55 knees (11.8%). Of these, 41 knees (74.5%) had degree of hyperextension between five degrees and 10 degrees , and 47 (85.4%) had varus alignment. The thickness of the resected distal femur in the recurvatum group (7.6+/-1.6mm) was less than that in the control group (8.4+/-1.4mm, P=0.001). The thickness of the insert in the recurvatum group (12.5+/-2.3mm) was greater than in the control group (10.8+/-1.5mm, P<0.001). The sagittal alignment at the final follow-up was 1.3+/-3.4 degrees in the control group and -0.1+/-0.7 degrees in the recurvatum group (P=0.003). Subgroup analyses in the recurvatum group showed no significant difference in sagittal alignment and patient-related outcomes by degree of pre-operative hyperextension and implant/insert type (P>0.05 for all parameters). CONCLUSIONS: Genu recurvatum was not uncommon among patients undergoing primary TKA. This review obtained satisfactory short-term clinical and radiologic results, with a smaller distal femoral resection and thicker insert. PMID- 29325838 TI - Clinical and radiologic evaluation of medial epicondylar osteotomy for varus total knee arthroplasty. AB - BACKGROUND: In varus total knee arthroplasty (TKA), a pathologic contracture of the medial soft tissue should be released for ligament balancing. A medial epicondylar osteotomy has been performed as an alternative method for this. The purpose of this study was to demonstrate the clinical and radiologic results of medial epicondylar osteotomy for varus TKA, focusing on the union type of osteotomy site. METHODS: The study retrospectively evaluated 61 cases with a mean femorotibial angle of 10.4 degrees varus and a mean flexion contracture angle of 8.5+/-9.8 degrees . Intraoperative medial and lateral gap difference in extension and 90 degrees flexion was accepted at <2mm. Clinical outcomes (Knee Society Scores, range of motion) and radiologic outcomes (coronal alignment and valgus stability) were compared between the two groups divided by the union type of osteotomy site (bony union or fibrous union). RESULTS: The clinical and radiologic outcomes were significantly improved at the latest follow-up. Bony union was achieved in 39 (63.9%) patients, whereas 22 patients showed fibrous union. There was no difference in the varus-valgus angle on the stress radiographs between the bony union and fibrous union group (1.6+/-1.2 degrees vs. 1.6+/-0.8 degrees , P<0.916). The Knee Society Scores (knee, function), range of motion and radiographic alignment did not differ between the two groups. CONCLUSION: Medial epicondylar osteotomy was a good option for gap balancing during TKA, as it provided satisfactory clinical and radiological results, regardless of union type of the osteotomy site. PMID- 29325839 TI - The effect of low-load exercise on joint pain, function, and activities of daily living in patients with knee osteoarthritis. AB - BACKGROUND: Knee osteoarthritis has a lifetime risk of nearly one in two, with obese individuals being most susceptible. While exercise is universally recognized as a critical component for management, unsafe or ineffective exercise frequently leads to exacerbation of joint symptoms. AIM: Evaluate the effect of a 12week lower body positive pressure (LBPP) supported low-load treadmill walking program on knee pain, joint function, and performance of daily activities in patients with knee osteoarthritis (OA). DESIGN: Prospective, observational, repeated measures investigation. SETTING: Community based, multidisciplinary musculoskeletal medicine clinic. PATIENTS: Thirty-one patients, aged 50-75, with a BMI >=25kg/m2 and radiographic confirmed mild to moderate knee OA. INTERVENTION: Twelve week LBPP treadmill walking exercise regimen. OUTCOME MEASURES: The Knee Injury and Osteoarthritis Outcome Score (KOOS) and the Canadian Occupational Performance Measure (COPM) were used to quantify joint symptoms and patient function; isokinetic thigh muscle strength was evaluated; and a 10-point VAS was used to quantify acute knee pain while walking. Baseline and follow-up data were compared in order to examine the effect of the 12week exercise intervention. RESULTS: There was a significant difference between baseline and follow-up data: KOOS and COPM scores both improved; thigh muscle strength increased; and acute knee pain during full weight bearing walking diminished significantly. CONCLUSIONS: Participation in a 12week LBPP supported treadmill walking exercise regimen significantly enhanced patient function and quality of life, as well as the ability to perform activities of daily living that patient's self-identified as being important, yet difficult to perform. PMID- 29325840 TI - Early comparative outcomes of unicompartmental and total knee arthroplasty in severely obese patients. AB - BACKGROUND: Medial unicompartmental knee arthroplasty (UKA) may have advantages over total knee arthroplasty (TKA) in the setting of obesity. There has been no direct comparison between the two cohorts. This study compares outcomes and complications of severely obese patients undergoing medial UKA versus TKA. METHODS: Six hundred and fifty medial UKA and 1300 TKA were performed in patients with BMI >35kg/m2 (mean 41kg/m2) between 2007 and 2012. Pre- and postoperative ROM, Knee Society scores, perioperative factors, complications and reoperations were compared. RESULTS: UKA patients had higher preoperative ROM, and Knee Society pain (KSP), functional (KSF), and clinical (KSC) scores (p<0.001, p=0.0008, p=0.0003, p=0.051 respectively). Mean tourniquet times, operative times, and lengths of stay were lower after UKA. Four TKA patients required transfusion. Mean follow-up was 2.3years. The frequency of manipulation under anesthesia was higher in TKA patients (p<0.001), while the rate of component revision was similar between the two groups (1.2% vs. 1.7%, p=0.328). Frequency of deep infection was lower in the UKA group (p=0.016). Postoperative KSF, change in KSF, and ROM were higher (p<0.0001) after UKA, but KSP and KSC were equivalent. CONCLUSIONS: Severely obese patients who underwent medial UKA demonstrated equal survivorship with substantially fewer reoperations, reduced deep infection, and less perioperative complications at short term follow-up. Severely obese patients had improved KSF scores and maintenance of ROM after UKA compared with TKA. PMID- 29325841 TI - Single-Center Experience With Venovenous ECMO for Influenza-Related ARDS. AB - OBJECTIVES: This study was designed to determine whether venovenous extracorporeal membrane oxygenation (VV ECMO) reduced mortality in patients with influenza-related acute respiratory distress syndrome (ARDS). DESIGN: A retrospective cohort study was performed. Baseline characteristics of participants were compared and Kaplan-Meier survival analysis was used to compare survival at last medical center follow-up. Cox proportional hazards modeling also was performed to test for univariate associations between salient variables and mortality. SETTING: A single-center ECMO referral university hospital. PARTICIPANTS: All patients admitted with influenza-related ARDS during the 2015 to 2016 influenza season. INTERVENTIONS: Mechanical ventilation alone versus mechanical ventilation and ECMO cannulation. MEASUREMENTS AND MAIN RESULTS: A total of 26 patients with influenza-related ARDS were included in the cohort. Thirteen patients were treated with VV ECMO while 13 were not. Twelve of the ECMO patients and 8 of the non-ECMO patients were transferred from outside hospitals. Patients treated with ECMO were younger and had less hypertension and diabetes mellitus. There was no difference in baseline sequential organ failure assessment score between the 2 groups. In-hospital mortality for ECMO patients was 15.4% versus 46.7% for patients not treated with ECMO. Survival at last medical center follow-up was better in patients treated with ECMO (p = 0.02). Age, highest blood carbon dioxide level, and treatment without ECMO were all associated with increased mortality. CONCLUSIONS: Influenza-related ARDS has a high mortality rate and patients treated only with mechanical ventilation have worse outcome than those managed with VV ECMO. More liberal use of ECMO should be considered in patients with influenza-related ARDS. PMID- 29325842 TI - Use of Dexmedetomidine in Cardiothoracic and Vascular Anesthesia. AB - Dexmedetomidine is a highly selective alpha2-adrenergic agonist with analgesic and sedative properties. In the United States, the Food and Drug Administration approved the use of the drug for short-lasting sedation (24 h) in intensive care units (ICUs) in patients undergoing mechanical ventilation and endotracheal intubation. In October 2008, the Food and Drug Administration extended use of the drug for the sedation of nonintubated patients before and during surgical and nonsurgical procedures. In the European Union, the European Medicine Agency approved the use of dexmedetomidine in September 2011 with a single recognized indication: ICU adult patients requiring mild sedation and awakening in response to verbal stimulus. At present, the use of dexmedetomidine for sedation outside the ICU remains an off-label indication. The benefits of dexmedetomidine in critically ill patients and in cardiac, electrophysiology-related, vascular, and thoracic procedures are discussed. PMID- 29325843 TI - Preoperative Intra-Aortic Counterpulsation in Cardiac Surgery: Insights From a Retrospective Series of 588 Consecutive High-Risk Patients. AB - OBJECTIVE: To support a rational use of preoperative intra-aortic balloon pump (IABP) in cardiac surgery. DESIGN: Retrospective, observational study. SETTING: Single university hospital. PARTICIPANTS: The study included 588 (mean age 68.5 +/- 9.6 yr) consecutive patients who received IABP before cardiac surgery from 1999 to 2016. INTERVENTIONS: Coronary surgery was performed in 573 (97.4%) cases. IABP indications were prophylaxis (n = 147), unstable angina (n = 239), and rapid worsening of hemodynamics (n = 202). Baseline characteristics of patients were analyzed with multivariable methods. Comparison of outcomes postsurgery between 74 patients undergoing IABP because of left main coronary artery disease (LMCAD) (stenosis >= 50%) and a new series of 1,360 patients experiencing LMCAD but who did not receive an IABP using propensity-score matching. MEASUREMENTS AND MAIN RESULTS: Throughout the study period, the rate of IABP use for prophylaxis and unstable angina increased (p = 0.0029) despite reduction in patient surgical risk (p = 0.0051). Early period of surgery (p = 0.032), rapid worsening of hemodynamics in the operating room (p = 0.0029), renal impairment (p < 0.0001), and ventilation before surgery (p = 0.0032) were predictors of in-hospital mortality. The cumulative rate of IABP-related complications was 6.8%. Current smoking (p = 0.025) and the use of a 9 Fr catheter (p = 0.0017) were predictors of IABP-related vascular complications. No difference was found regarding outcomes postsurgery for 43 pairs of IABP/non-IABP matched patients with LMCAD, even though preoperative IABP was associated with an increased use of bilateral internal thoracic artery grafting. CONCLUSIONS: Preoperative use of IABP in cardiac surgery was shown in this study to be safe, even for high-risk patients. LMCAD is not by itself a sufficient indication for prophylactic IABP. PMID- 29325844 TI - Naloxone Infusion During Thoracic Endovascular Aortic Aneurysm Repair to Prevent Spinal Cord Injury. PMID- 29325845 TI - Effect of Continuous Paravertebral Dexmedetomidine Administration on Intraoperative Anesthetic Drug Requirement and Post-Thoracotomy Pain Syndrome After Thoracotomy: A Randomized Controlled Trial. PMID- 29325846 TI - Hospital Outcome and Risk Indices of Mortality after redo-mitral valve surgery in Potential Candidates for Transcatheter Procedures: Results From a European Registry. AB - OBJECTIVE: Transcatheter mitral valve-in-valve/valve-in-ring procedures (TM VIVoR) are increasing. The authors aimed to identify independent predictors for hospital mortality in redo mitral valve surgery as possible future selection criteria for TM-VIVoR. DESIGN: Retrospective multicenter registry. SETTING: Tertiary university and community hospitals. PARTICIPANTS: Two-hundred and sixty patients (out of 920 enrolled) who are potentially candidates for TM-VIVoR undergoing redo-surgery. INTERVENTIONS: Redo mitral surgery. MEASUREMENTS AND MAIN RESULTS: Regression analyzes and receiver operating characteristic (ROC) curves identified independent predictors of death. Patients potentially candidates for TM-VIVoR reported significant hospital mortality (9.2%; EuroSCORE II: 13.2 +/- 13.1, Society of Thoracic Surgeons [STS] score: 6.2 +/- 3.1) and major morbidity (3.8% acute myocardial infarction, 5% stroke, 16.9% perioperative respiratory failure, 16.5% acute renal insufficiency, 25% massive transfusions). EuroSCORE II (odds ration [OR] 1.06; confidence interval [CI] 1.01-1.10; p = 0.005), STS score (OR 1.58; CI 1.27-1.97; p = 0.001), age at surgery (OR 1.05; CI 1.00-1.15; p = 0.05), preoperative dialysis (OR 2.5; CI 1.8-12.6; p = 0.042), left ventricular ejection fraction (LVEF) <30% (OR 4.8; CI 1.12-37.1; p = 0.021), severe pulmonary hypertension (OR 7.5; CI 1.9-29.4; p = 0.003), and previous coronary artery bypass grafting (CABG) (OR 11.8; CI 1.7-36.9; p = 0.002) were independent predictors of hospital mortality. ROC analyses reported good prediction for EuroSCORE II (AUC: 0.76; cut-off value: >13.1; 70.8% sensitivity and 68.2% specificity) and better prediction for STS score (AUC: 0.81; cut-off value: 7.4; 75.0% sensitivity and 66.2% specificity). Quintiles stratification identified EuroSCORE II >=18.7 (5th quintile, observed mortality: 19.3%) and STS score >9.1 as strong predictors of death within each risk-categorization (OR 5.9 and 12.1, respectively). CONCLUSIONS: High EuroSCORE II and STS scores, advanced age at surgery, LVEF <30%, previous CABG, severe pulmonary hypertension or preoperative dialysis might represent in the future preferred indications for TM VIVoR in the redo-mitral surgery scenario. PMID- 29325847 TI - Amphetamine-Induced Striatal Dopamine Release Measured With an Agonist Radiotracer in Schizophrenia. AB - BACKGROUND: Receptor imaging studies have reported increased amphetamine-induced dopamine release in subjects with schizophrenia (SCH) relative to healthy control subjects (HCs). A limitation of these studies, performed with D2/3 antagonist radiotracers, is the failure to provide information about D2/3 receptors configured in a state of high affinity for the agonists (i.e., D2/3 receptors coupled to G proteins [D2/3 HIGH]). The endogenous agonist dopamine binds with preference to D2/3 HIGH receptors relative to D2/3 LOW receptors, making it critical to understand the status of D2/3 HIGH receptors in SCH. METHODS: D2/3 agonist positron emission tomography radiotracer [11C]N-propyl-norapomorphine ([11C]NPA) binding potential (BPND) was measured in 14 off-medication subjects with SCH and 14 matched HCs at baseline and after the administration of 0.5 mg kg 1 oral D-amphetamine. The amphetamine-induced change in BPND (DeltaBPND) was calculated as the difference between BPND in the postamphetamine condition and BPND in the baseline condition and was expressed as a percentage of BPND at baseline. RESULTS: A trend-level increase was observed in comparing baseline [11C]NPA BPND (repeated-measures analysis of variance, F1,26 = 3.34, p = .08) between the SCH and HC groups. Amphetamine administration significantly decreased BPND in all striatal regions across all subjects in both groups. No differences were observed in [11C]NPA DeltaBPND (repeated-measures analysis of variance, F1,26 = 1.9, p = .18) between HCs and subjects with SCH. Amphetamine significantly increased positive symptoms in subjects with SCH (19.5 +/- 5.3 vs. 23.7 +/- 4.1, paired t test, p < .0001); however, no correlations were noted with [11C]NPA BPND or DeltaBPND. CONCLUSIONS: This study provides in vivo indication of a role for postsynaptic factors in amphetamine-induced psychosis in SCH. PMID- 29325849 TI - Coagonist of GLP-1 and glucagon decreases liver inflammation and atherosclerosis in dyslipidemic condition. AB - Dyslipidemia enhances progression of atherosclerosis. Coagonist of GLP-1 and glucagon are under clinical investigation for the treatment of obesity and diabetes. Earlier, we have observed that coagonist reduced circulating and hepatic lipids, independent of its anorexic effects. Here, we investigated the role of coagonist of GLP-1 and glucagon receptors in complications of diet induced dyslipidemia in hamsters and humanized double transgenic mice. Hamsters fed on high fat high cholesterol diet were treated for 8 weeks with coagonist of GLP-1 and glucagon receptors (75 and 150 MUg/kg). Pair-fed control was maintained. Cholesterol fed transgenic mice overexpressing hApoB100 and hCETP with coagonist (300 MUg/kg) for 4 weeks. After the completion of treatment, biochemical estimations were done. Coagonist treatment reduced triglycerides in plasma, liver and aorta, plasma cholesterol and hepatic triglyceride secretion rate. Expressions of HMG-CoA reductase and SBREBP-1C were reduced and expressions of LDLR, CYP7A1, ABCA1 and ABCB11 were increased in liver, due to coagonist treatment. Coagonist treatment increased bile flow rate and biliary cholesterol excretion. IL-6 and TNF-alpha were reduced in plasma and expression of TNF-alpha, MCP-1, MMP-9 and TIMP-1 decreased in liver. Treatment with coagonist reduced oxidative stress in liver and aorta. Energy expenditure was increased and respiratory quotient was reduced by coagonist treatment. These changes were correlated with reduced hepatic inflammation and lipids in liver and aorta in coagonist treated hamsters. Coagonist treatment also reduced lipids in cholesterol-fed transgenic mice. These changes were independent of glycaemia and anorexia observed after coagonist treatment. Long term treatment with coagonist of GLP-1 and glucagon receptor ameliorated diet-induced dyslipidemia and atherosclerosis by regulating bile homeostasis, liver inflammation and energy expenditure. PMID- 29325850 TI - Interaction of DNA with water soluble complex of Nickle and formation of DNA cross-links. AB - Interaction of double stranded DNA with bulky and hydrophobic Salen type Schiff base complex: [N, N' Bis [3- tert-butyl-5-[triphenyl-phosphonium - methyl] - salicylidene] 1,2 ethylene-diamine nickel(III) acetate (refer to Ni Salen complex) was extensively investigated using the spectroscopic techniques and gel electrophoresis. Absorption titration experiment showed the hypochromic effect and the significant red shift of the complex absorption. In competition experiments with ethidium bromide (EB), Ni Salen complex exhibited non competitive binding at high concentrations. UV-vis absorption and fluorescence emission data agreed on a binding constant of (1.64 +/- 0.01) MUM-1, thereby showing the strong interaction of the complex with DNA; also, a binding site size of 2.33 +/- 0.01 base pairs per complex was achieved. Thermal denaturation experiment showed that Tm of calf thymus-DNA was increased by approximately 10 degrees C at a molar ratio of the dye/base of 0.2. The CD spectra of DNA exhibited an increase in both positive and negative peaks without any shift in the position of bands upon addition of the complex. The amplitude of the LD spectra of DNA was decreased in the presence of the complex. Reduced linear dichroism (LDred) revealed that the transition moment of complex was parallel to the DNA helix axis. Gel electrophoresis experiments confirmed that Ni Salen complex had no nuclease/DNA cleaving activity; also, DNA-DNA cross links were formed at high concentrations of complex, leading to the aggregation of DNA. PMID- 29325851 TI - Microbial population changes in patients with medication-related osteonecrosis of the jaw treated with systemic antibiotics. AB - OBJECTIVE: This study aimed to investigate the bacterial population in patients with medication-related osteonecrosis of the jaw (MRONJ) after treatment with doxycycline and metronidazole. STUDY DESIGN: A total of 38 patients with MRONJ (age range 55-88, mean age 73 + 8.82 standard deviation) treated with doxycycline first and with metronidazole second were enrolled in this study. Two swabs were taken at the margin of the infected MRONJ lesion after applying pressure on the marginal mucosa, and visible pus was secreted. Real-time polymerase chain reaction was used to analyze 20 periopathogenic and commensal species and the total bacterial level. Bacterial counts were compared between antibiotic treatments and with a control group of orally healthy patients who didn't have periodontal pockets of more than 3 mm (n = 29) by means of a Mann-Whitney U test. Comparisons between the two antibiotic treatments were performed by a paired Wilcoxon signed rank test. RESULTS: The total bacterial level was significantly higher in the MRONJ patients treated with systemic antibiotics compared with the control group. However, significant lower bacterial amounts were found for 12 of the 20 investigated bacteria. We couldn't establish a significant advantage of metronidazole administration after doxycycline treatment. CONCLUSION: Our findings suggest that the total bacterial level in MRONJ patients is higher even when treated with systemic antibiotics. The significantly different bacterial amounts of the selected species suggest an alteration in the microbial population. PMID- 29325852 TI - Quality and readability of internet-based information on halitosis. AB - OBJECTIVE: To evaluate quality and readability of Internet-based information on halitosis. STUDY DESIGN: An Internet search through 3 engines (Google, Yahoo, and Bing) was done with the terms ("bad breath," "halitosis," "oral malodor," "foul breath," "mouth malodor," "breath malodor," "fetor ex ore," "fetor oris," "ozostomia," and "stomatodysodia"). The first 50 websites from each engine resulting from each search term were screened. Included websites were evaluated using Health on the Net (HON) criteria, Journal of American Medical Association (JAMA) benchmarks, DISCERN, Ensuring Quality Information for Patients (EQIP), Flesch Reading Ease (FRE) score, and Flesch-Kincaid Grade level. RESULTS: A total of 101 websites were included. HON, DISCERN, EQIP, and FRE score were 42.9%, 37.6%, 37.4%, and 51.9% of the maximum score, respectively. Fewer than 50% of sites displayed attribution, disclosure, and currency according to JAMA benchmarks. HON score, DISCERN score, and EQIP score had significant correlation with each other and were significantly higher in sites displaying the HON seal. CONCLUSION: The current quality and readability of informative websites on halitosis are generally low and poorly organized. Clinicians should be able to assess the Internet-based information on halitosis, as well as give accurate advice and guide patients concerning this issue. PMID- 29325853 TI - Relationship between sjogren syndrome and periodontal status: A systematic review. AB - OBJECTIVE: This study aimed to examine whether Sjogren syndrome (SS) is related to periodontal status. STUDY DESIGN: A systematic review was performed on the basis of PRISMA (PROSPERO: CRD42017055202). A search was performed in the PubMed/MEDLINE, LILACS, Web of Science, and Science Direct databases. Hand searches and review of the gray literature were also performed. Three researchers independently selected studies, extracted data, and assessed methodologic quality. Studies that correlated primary and/or secondary SS with plaque index, gingival index, probing depth, and bleeding on probing were included. The risk of bias was estimated on the basis of the Newcastle-Ottawa scale. RESULTS: Seventeen studies were included in the review and 9 included in the meta-analysis, with a total of 518 and 544 patients, with or without SS, respectively. The mean difference of plaque index (0.29; 95% confidence interval [CI] 0.17-0.41), gingival index (0.52; 95% CI 0.14-0.89), and bleeding on probing (9.92; 95% CI 4.37-15.47) were larger in patients with SS than in controls. In primary SS (0.47; 95% CI 0.10-0.83) and secondary SS (0.74; 95% CI 0.10-1.38), only the mean gingival index was larger compared with that in control group. The majority of the included studies were judged as having a high risk of bias. CONCLUSIONS: The present review did not provide strong evidence that periodontal status is affected by SS. PMID- 29325848 TI - A Genetic Investigation of Sex Bias in the Prevalence of Attention Deficit/Hyperactivity Disorder. AB - BACKGROUND: Attention-deficit/hyperactivity disorder (ADHD) shows substantial heritability and is two to seven times more common in male individuals than in female individuals. We examined two putative genetic mechanisms underlying this sex bias: sex-specific heterogeneity and higher burden of risk in female cases. METHODS: We analyzed genome-wide autosomal common variants from the Psychiatric Genomics Consortium and iPSYCH Project (n = 20,183 cases, n = 35,191 controls) and Swedish population register data (n = 77,905 cases, n = 1,874,637 population controls). RESULTS: Genetic correlation analyses using two methods suggested near complete sharing of common variant effects across sexes, with rg estimates close to 1. Analyses of population data, however, indicated that female individuals with ADHD may be at especially high risk for certain comorbid developmental conditions (i.e., autism spectrum disorder and congenital malformations), potentially indicating some clinical and etiological heterogeneity. Polygenic risk score analysis did not support a higher burden of ADHD common risk variants in female cases (odds ratio [confidence interval] = 1.02 [0.98-1.06], p = .28). In contrast, epidemiological sibling analyses revealed that the siblings of female individuals with ADHD are at higher familial risk for ADHD than the siblings of affected male individuals (odds ratio [confidence interval] = 1.14 [1.11-1.18], p = 1.5E-15). CONCLUSIONS: Overall, this study supports a greater familial burden of risk in female individuals with ADHD and some clinical and etiological heterogeneity, based on epidemiological analyses. However, molecular genetic analyses suggest that autosomal common variants largely do not explain the sex bias in ADHD prevalence. PMID- 29325854 TI - Considerations in the diagnosis of oral hairy leukoplakia-an institutional experience. AB - OBJECTIVE: We report here the 10-year experience with oral hairy leukoplakia (OHL) at the Division of Oral and Maxillofacial Pathology at the University of North Carolina at Chapel Hill, NC, USA. STUDY DESIGN: All the associated hematoxylin and eosin and Epstein-Barr virus encoding region in situ hybridization slides of OHL cases between January 1, 2008, and February 1, 2017, were retrieved and reviewed. Collected demographic characteristics, clinical presentation, medical and social histories were reviewed and reported. RESULTS: Six OHL cases with confirmed in situ hybridization showed predilection for the lateral tongue. The study included 3 females and 3 males (mean age 50.5 years; age range 29-70 years). One patient had known HIV-positive status before biopsy was performed. Three patients had reported a history of heavy smoking. Other medical conditions reported were history of breast cancer, a long history of corticosteroid inhaler use for asthma treatment, high cholesterol, diabetes, and hypertension. CONCLUSIONS: The findings of this study indicate the need to include OHL as a potential entity in the differential diagnosis of leukoplakic tongue lesions, regardless of the patient's HIV status. In addition, the presence of OHL in the patient requires investigation of various explanations for EBV infection, including immunosuppression caused by HIV infection or chronic steroid use. PMID- 29325855 TI - Gating of long-term potentiation (LTP) in the thalamocortical auditory system of rats by serotonergic (5-HT) receptors. AB - The neuromodulator serotonin (5-hydroxytryptamine, 5-HT) plays an important role in controlling the induction threshold and maintenance of long-term potentiation (LTP) in the visual cortex and hippocampus of rodents. Serotonergic fibers also innervate the rodent primary auditory cortex (A1), but the regulation of A1 plasticity by 5-HT receptors (5-HTRs) is largely uncharted. Thus, we examined the role of several, predominant 5-HT receptor classes (5-HT1ARs, 5-HT2Rs, and 5 HT3Rs) in gating in vivo LTP induction at A1 synapses of adult, urethane anesthetized rats. Theta-burst stimulation (TBS) applied to the medial geniculate nucleus resulted in successful LTP induction of field postsynaptic potentials (fPSPs) generated by excitation of thalamocortical and intracortical A1 synapses. Local application (by reverse microdialysis in A1) of the broad-acting 5-HTR antagonist methiothepin suppressed LTP at both thalamocortical and intracortical synapses. In fact, rather than LTP, TBS elicited long-term depression during methiothepin application, an effect that was mimicked by the selective 5-HT2R antagonist ketanserin, but not the 5-HT1AR blocker WAY 100635. Interestingly, antagonism of 5-HT3Rs by granisetron selectively blocked LTP at thalamocortical, but not intracortical A1 synapses. Further, in the absence of TBS, granisetron application resulted in a pronounced increase in fPSP amplitude, suggesting that 5-HT3Rs play an important role in regulating baseline (non-potentiated) transmission at A1 synapses. Together, these results indicate that activation of 5-HT2Rs and 5-HT3Rs, but not 5-HT1ARs, exerts a clear, facilitating effect on LTP induction at A1 synapses, allowing 5-HT to act as a powerful regulator of long term plasticity induction in the fully matured A1 of mammalian species. PMID- 29325857 TI - Prospective advances in fetal biomagnetometry - Challenges remain. PMID- 29325856 TI - Is insufficient pulmonary air support the cause of dysphonia in chronic obstructive pulmonary disease? AB - OBJECTIVE: Optimal pulmonary air support is essential pre-requisite for efficient phonation. The objective is to correlate pulmonary and vocal functions in chronic obstructive pulmonary disease (COPD) to find out whether the reduced pulmonary function per se could induce dysphonia. METHODS: In this prospective case-control study, sixty subjects with stable COPD underwent evaluation of pulmonary and vocal functions. The pulmonary functions measured include {Forced vital capacity (FVC), forced expiratory volume in the first second (FEV1), FEV1/FVC ratio, peak expiratory flow (PEF), maximum mid-expiratory flow (MMEF)}. The vocal functions were {jitter, shimmer, noise-to-harmonic ratio, pitch perturbation quotient, amplitude perturbation quotient, maximum phonation time (MPT), sound pressure level, phonatory efficiency, resistance and power. A control group (n=35) underwent the same measurements. These functions were compared between subjects and controls. Also, correlation of the vocal and pulmonary functions was conducted. RESULTS: Thirty five (58.3%) of COPD subjects have dysphonia. The pulmonary functions were lower in all COPD group than in the control group (P<0.001 for all parameters). Also, the FVC, FEV1, PEF and MMEF % of predicted values were significantly lower in subjects with dysphonia (n=35) than those without dysphonia (n=25) with P values 0.0018, <0.001, 0.0011 and 0.0026 respectively. In addition, the MPT in all subjects showed positive correlations to the 5 pulmonary functions (P=0.004 for FEV1/FVC ratio and P<0.001 for the rest). Also, the phonatory efficiency showed significant positive correlations with the pulmonary functions FVC, FEV1, PEF and MMEF (P=0.001, 0.001, 0.002 and 0.001 respectively). Unlike efficiency, the phonatory resistance revealed significant negative correlations with these pulmonary functions in the same order (P=0.001, 0.003, 0.002, 0.001 respectively). CONCLUSION: Dysphonia is a common comorbidity with COPD which attributed to multifactorial etiologies. The lower the pulmonary function in COPD patients is the more likely to have dysphonia. Decreased pulmonary function was associated with reduced MPT and phonatory efficiency but with increased phonatory resistance. The reduced pulmonary functions in COPD can be the underlying cause of the altered vocal function and dysphonia. Great part of this dysphonia is functional, and hence, can be corrected by voice therapy in compensated subjects. Further researches are needed to evaluate the efficacy of voice therapy in these patients. PMID- 29325858 TI - Can clinical neurophysiology assist in patient selection for DBS in pediatric dystonia? PMID- 29325859 TI - Ki-67 Expression as a Factor Predicting Recurrence of Ductal Carcinoma In Situ of the Breast: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Ki-67 is a marker of proliferating cells; in this meta-analysis we aimed to examine whether Ki-67 expression can predict recurrence rates of breast ductal carcinoma in situ (DCIS). MATERIALS AND METHODS: This systematic review and meta-analysis was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Eligible articles were sought in MEDLINE up to April 30, 2017. Random effects (DerSimonian-Laird) models were used for the calculation of pooled relative risk (RR) estimates; meta-regression analysis was also performed. Separate analyses were performed according to Ki-67 expression cutoff levels, invasiveness of recurrence, and adjustment of studies. RESULTS: Ten eligible cohort studies were synthesized; a significant association between Ki-67 expression and DCIS recurrence was noted for the Ki-67 cutoff at 10% (RR = 1.66; 95% confidence interval [CI], 1.14-2.42) as well as the Ki-67 cutoff at 14% (RR = 1.67; 95% CI, 1.01-2.77). Subanalysis on unadjusted (RR = 1.48; 95% CI, 1.06-2.07) and adjusted studies (RR = 2.19; 95% CI, 1.42-3.38) replicated the statistically significant findings. Ki-67 expression predicted the risk of invasive (RR = 1.53; 95% CI, 1.14-2.06) and noninvasive (RR = 1.59; 95% CI, 1.19-2.13) recurrence. CONCLUSION: This meta-analysis highlights Ki-67 expression as a predictor of DCIS recurrence; nevertheless, additional adjusted studies, with adequate follow-up periods, stemming from various world regions seem to be needed on this topic. PMID- 29325860 TI - BRCA2 Reversion Mutation Associated With Acquired Resistance to Olaparib in Estrogen Receptor-positive Breast Cancer Detected by Genomic Profiling of Tissue and Liquid Biopsy. PMID- 29325861 TI - Crystallographic and morphological analysis of sandblasted highly translucent dental zirconia. AB - OBJECTIVE: To assess the influence of alumina sandblasting on four highly translucent dental zirconia grades. METHODS: Fully sintered zirconia disk-shaped specimens (15-mm diameter; 0.5-mm thickness) of four highly translucent yttria partially stabilized zirconia (Y-PSZ) grades (KATANA HT, KATANA STML, KATANA UTML, Kuraray Noritake; Zpex Smile, Tosoh) were sandblasted with 50-MUm alumina (Al2O3) sand (Kulzer) or left 'as-sintered' (control) (n=5). For each zirconia grade, the translucency was measured using a colorimeter. Surface roughness was assessed using 3D confocal laser microscopy, upon which the zirconia grades were statistically compared for surface roughness using a Kruskal-Wallis test (n=10). X-ray diffraction (XRD) with Rietveld analysis was used to assess the zirconia phase composition. Micro-Raman spectroscopy was used to assess the potentially induced residual stress. RESULTS: The translucency of KATANA UTML was the highest (36.7+/-1.8), whereas that of KATANA HT was the lowest (29.5+/-0.9). The 'Al2O3 sandblasted' and 'as-sintered' zirconia revealed comparable surface-roughness Sa values. Regarding zirconia-phase composition, XRD with Rietveld analysis revealed that the 'as-sintered' KATANA UTML contained the highest amount of cubic zirconia (c-ZrO2) phase (71wt%), while KATANA HT had the lowest amount of c-ZrO2 phase (41wt%). KATANA STML and Zpex Smile had a comparable zirconia-phase composition (60wt% c-ZrO2 phase). After Al2O3-sandblasting, a significant amount (over 25wt%) of rhombohedral zirconia (r-ZrO2) phase was detected for all highly translucent zirconia grades. SIGNIFICANCE: Al2O3-sandblasting did not affect the surface roughness of the three highly translucent Y-PSZ zirconia grades, but it changed its phase composition. PMID- 29325862 TI - Antibacterial effects of cinnamon (Cinnamomum zeylanicum) bark essential oil on Porphyromonas gingivalis. AB - The objective of this study was to investigate the antibacterial effects of cinnamon (Cinnamomum zeylanicum) bark essential oil (CBEO) and its principal constituent cinnamaldehyde against Porphyromonas gingivalis and to elucidate the antibacterial mechanism. GC-MS analysis showed that cinnamaldehyde was the major constituent in CBEO (57.97%). The minimum inhibition concentrations (MICs) of CBEO and cinnamaldehyde were 6.25 MUg/mL and 2.5 MUM for P. gingivalis, respectively. Nucleic acid and protein leakage was observed with increasing concentrations of CBEO and cinnamaldehyde. Additionally, propidium iodide uptake assays revealed CBEO and cinnamaldehyde at 1 * MIC impaired P. gingivalis membrane integrity by enhancing cell permeability. Morphological changes in P. gingivalis cells were observed by scanning electron microscopy, which indicated cell membrane destruction. To further determine the anti-biofilm effect, relative biofilm formation and established biofilms were examined, which demonstrated that both CBEO and cinnamaldehyde at sub-MIC levels inhibited P. gingivalis biofilm formation by 74.5% and 67.3% separately, but only CBEO slightly decreased established biofilms by 33.5% at 4 * MIC. These results suggest the potential of CBEO as a natural antimicrobial agent against periodontal disease. Furthermore, cinnamaldehyde was confirmed to be the antibacterial substance of CBEO with inhibitory action against P. gingivalis. PMID- 29325863 TI - High flux isothermal assays on pathogenic, virulent and toxic genetics from various pathogens. AB - Toxins, encoding by virulence factors, are significant cause of food-borne illnesses and death in the worldwide. Loop-mediated isothermal amplification (LAMP) is one of the widely used methodologies because of the high sensitivity, specificity and rapidity. Nowadays, LAMP has been regarded as an innovative gene amplification technology and emerged as an alternative to PCR-based methodologies in identification of the pathogenic virulent and toxic genetics. The high sensitivity of LAMP enables detection of the pathogens in sample materials even without time consuming and sample preparation. Therefore, we review the typical characteristics of LAMP assay, recent advance in detection of virulence factors and the application of LAMP assay on detection of four commonly virulence factors. As concluded, with the advantages of rapidity, simplicity, sensitivity, specificity and robustness, LAMP is capable of identification the virulence factors. Moreover, the main purpose of this review is to provide theory support for the application of LAMP assay on the virulence factors identification. PMID- 29325864 TI - Infections, genetic and environmental factors in pathogenesis of autoimmune thyroid diseases. AB - In Autoimmune disease a combination of infection, genetic and environmental factors causes an autoimmune response to the thyroid gland (characterized by lymphocytic infiltrations), thyroid stimulating hormone receptor (TSHR) and different thyroid antigens. Graves' and Hashimoto disease are autoimmune disorders with genetic predisposition. CD40 that stimulates the proliferation and differentiation of lymphocytes is an essential immunomodulatory component for follicular cells in the thyroid and the cell that present the antigen. CD40, PTPN22 and thyroid-specific genes are immunomodulating genes for the TSH receptor and thyroglobulin. CD40 used to be associated with Graves's disease as positional candidate on the basis of Graves' disease linkage study connecting with 20q11 genome chromosomal region. The PTPN22 gene gives rise to a substantial risk of specific autoimmune phenotypes and frequent disease mechanisms. Infections have been implicated in the pathogenesis of AITD including Coxsackie virus, Yersinia enterocolitica, Borrelia burgdorferi, Helicobacter pylori and retroviruses (HTLV 1, HFV, HIV and SV40). Infectious hepatitis C agents are the strongest proof supporting an affiliation with AITD. The essential environmental triggers of AITD are iodine, drugs, infection, smoking and perhaps stress. Autoimmune disease provide important facts on genetic mechanisms that influence the prognosis and treatment of the disease and by recent molecular techniques through gene expression study by quantitative Real Time-PCR and microarray, we can identify novel genes which are responsible for Graves' and Hashimoto disease. PMID- 29325865 TI - Emerging discrepancies in conventional and molecular epidemiology of methicillin resistant Staphylococcus aureus isolated from bovine milk. AB - Methicillin resistant Staphylococcus aureus (MRSA) is an emerging public health concern from dairy milk, and its diagnosis by phenotypic methodology is experiencing higher discrepancies. The present study was planned to estimate discrepancies in phenotypic identification of MRSA and MSSA (Methicillin sensitive Staphylococcus aureus) in relation to mecA, and prevalent risk factors from various localities. In-vitro oxacilline antibiotic disks were used for phenotypic identification of MRSA, whereas mecA gene was used as MRSA marker in Staph aureus by PCR. Total of 900 bovine milk samples from private and public farms located in district Faisalabad using convinent sampling technique were collected. Potential risk factors for MRSA prevalence identified by non parametric statistical tests were compared among different subdistricts. Discrepancy in MRSA was calculated as percentage of mecA negative strains while that of MSSA was determined as percentage of mecA positive strains. Molecular identification presented 17.97% (55/306) of discrepancy in MRSA in terms of negative mecA strains from district Faisalabad while sub-district Faisalabad, sub district Jaranwala, and sub-district Samundary presented 13.98% (13/93), 18.28% (17/93), and 20.83% (25/120) discrepant results, respectively. On the other hand, 29.1% (55/189) of discrepancy in MSSA in terms of mecA positive strains from MSSA isolates was noted. MSSA results were more discrepant than that of MRSA. Hence discrepancy ratio of MSSA over MRSA was noted to be 1.53, 1.50, and 1.21 from tehsil Faislabad, Samundary, and Jaranwala. Tick infestation, lactation stage, frequency of milking, dirty milker's hands, unhygienic milking procedures, and higher use of beta lactam of antibiotics were risk factors that were prevalent in increasing order from sub-district Faisalabad > Jaranwala > Samundary. The study concluded higher prevalence of MRSA in bovine milk samples, and found remarkable discrepancies in phenotypic and genotypic identification which demand immediate attention to tackle exacerbation in resistance patterns. PMID- 29325866 TI - 2-(2-Nitrovinyl) furan exacerbates oxidative stress response of Escherichia coli to bacteriostatic and bactericidal antibiotics. AB - The influence of 2-(2-nitrovinyl) furan on the activities of selected bacteriostatic and bactericidal antibiotics was investigated. Minimum inhibitory concentration and fractional inhibitory concentration index were determined to evaluate the interaction between 2-(2-nitrovinyl) furan and the antibiotics. 2-(2 nitrovinyl) furan exhibited additive interactions with chloramphenicol, erythromycin, lincomycin and gemifloxacin. However, synergistic interaction was observed with amoxicillin, ampicillin and ciprofloxacin. Superoxide anion content of Escherichia coli exposed to antibiotics with/without 2-(2-nitrovinyl) furan increased significantly (p < .05). Furthermore, reduced glutathione decreased significantly with a corresponding increase in glutathione disulphide. In addition, malondialdehyde, a product of lipid peroxidation, increased significantly in E. coli exposed to antibiotics and 2-(2-nitrovinyl) furan. It can be deduced from this study that 2-(2-nitrovinyl) furan enhanced bacteriostatic and bactericidal antibiotics-mediated bacterial death possibly by potentiating reactive oxygen species generation and oxidative stress. PMID- 29325869 TI - Microglial activation and the nitric oxide/cGMP/PKG pathway underlie enhanced neuronal vulnerability to mitochondrial dysfunction in experimental multiple sclerosis. AB - During multiple sclerosis (MS), a close link has been demonstrated to occur between inflammation and neuro-axonal degeneration, leading to the hypothesis that immune mechanisms may promote neurodegeneration, leading to irreversible disease progression. Energy deficits and inflammation-driven mitochondrial dysfunction seem to be involved in this process. In this work we investigated, by the use of striatal electrophysiological field-potential recordings, if the inflammatory process associated with experimental autoimmune encephalomyelitis (EAE) is able to influence neuronal vulnerability to the blockade of mitochondrial complex IV, a crucial component for mitochondrial activity responsible of about 90% of total cellular oxygen consumption. We showed that during the acute relapsing phase of EAE, neuronal susceptibility to mitochondrial complex IV inhibition is markedly enhanced. This detrimental effect was counteracted by the pharmacological inhibition of microglia, of nitric oxide (NO) synthesis and its intracellular pathway (involving soluble guanylyl cyclase, sGC, and protein kinase G, PKG). The obtained results suggest that mitochondrial complex IV exerts an important role in maintaining neuronal energetic homeostasis during EAE. The pathological processes associated with experimental MS, and in particular the activation of microglia and of the NO pathway, lead to an increased neuronal vulnerability to mitochondrial complex IV inhibition, representing promising pharmacological targets. PMID- 29325867 TI - Atypical antipsychotics, insulin resistance and weight; a meta-analysis of healthy volunteer studies. AB - Atypical antipsychotics increase the risk of diabetes and cardiovascular disease through their side effects of insulin resistance and weight gain. The populations for which atypical antipsychotics are used carry a baseline risk of metabolic dysregulation prior to medication which has made it difficult to fully understand whether atypical antipsychotics cause insulin resistance and weight gain directly. The purpose of this work was to conduct a systematic review and meta analysis of atypical antipsychotic trials in healthy volunteers to better understand their effects on insulin sensitivity and weight gain. Furthermore, we aimed to evaluate the occurrence of insulin resistance with or without weight gain and with treatment length by using subgroup and meta-regression techniques. Overall, the meta-analysis provides evidence that atypical antipsychotics decrease insulin sensitivity (standardized mean difference=-0.437, p<0.001) and increase weight (standardized mean difference=0.591, p<0.001) in healthy volunteers. It was found that decreases in insulin sensitivity were potentially dependent on treatment length but not weight gain. Decreases in insulin sensitivity occurred in multi-dose studies <13days while weight gain occurred in studies 14days and longer (max 28days). These findings provide preliminary evidence that atypical antipsychotics cause insulin resistance and weight gain directly, independent of psychiatric disease and may be associated with length of treatment. Further, well-designed studies to assess the co-occurrence of insulin resistance and weight gain and to understand the mechanisms and sequence by which they occur are required. PMID- 29325868 TI - A Canadian genome-wide association study and meta-analysis confirm HLA as a risk factor for peanut allergy independent of asthma. PMID- 29325870 TI - Impact of an infectious disease specialist on antifungal use: an interrupted time series analysis in a tertiary hospital in Tokyo. AB - BACKGROUND: Antimicrobial stewardship programmes are considered essential for optimizing antimicrobial use in order to improve patient outcomes, reduce the number of adverse sequelae, prevent resistance, and ensure cost-effective therapy. AIM: To assess the efficacy and the limitations of antifungal antimicrobial stewardship programmes. METHODS: A bundle to manage infectious diseases was implemented in our hospital in October 2010. Data regarding antimicrobial use density (AUD) from April 2006 to May 2016 were collected. Trends in AUD were assessed using an interrupted time-series model for three separate periods: the pre-bundle, the bundle implementation, and the long-term follow-up periods. The primary and secondary outcomes were AUD (defined daily dose (DDD) per 1000 patient-days) of intravenous antifungals and expenditure on antifungals per fiscal year, respectively. FINDINGS: The AUD for all intravenous antifungals decreased from 26.1 in 2006 to 9.9 in 2015. Whereas the change in the trend during the pre-bundle period was not significant (slope: 0.062; 95% confidence interval (CI): -0.180 to 0.305), a significant decrease was observed in the bundle implementation period (slope: -0.535; 95% CI: -0.907 to -0.164). The trend slowed during the long-term follow-up period (slope: -0.040; 95% CI: 0.218 to 0.138). Total expenditure on antifungals decreased by 73%, from Y52,354,411 in fiscal year 2006 to Y14,073,099 in fiscal year 2015. CONCLUSION: The bundle significantly reduced the use of antifungals and decreased costs over time, but this effect was limited in that it had stabilized within three years. PMID- 29325871 TI - Use of ultraviolet-fluorescence-based simulation in evaluation of personal protective equipment worn for first assessment and care of a patient with suspected high-consequence infectious disease. AB - BACKGROUND: Variations currently exist across the UK in the choice of personal protective equipment (PPE) used by healthcare workers when caring for patients with suspected high-consequence infectious diseases (HCIDs). AIM: To test the protection afforded to healthcare workers by current PPE ensembles during assessment of a suspected HCID case, and to provide an evidence base to justify proposal of a unified PPE ensemble for healthcare workers across the UK. METHODS: One 'basic level' (enhanced precautions) PPE ensemble and five 'suspected case' PPE ensembles were evaluated in volunteer trials using 'Violet'; an ultraviolet fluorescence-based simulation exercise to visualize exposure/contamination events. Contamination was photographed and mapped. FINDINGS: There were 147 post simulation and 31 post-doffing contamination events, from a maximum of 980, when evaluating the basic level of PPE. Therefore, this PPE ensemble did not afford adequate protection, primarily due to direct contamination of exposed areas of the skin. For the five suspected case ensembles, 1584 post-simulation contamination events were recorded, from a maximum of 5110. Twelve post-doffing contamination events were also observed (face, two events; neck, one event; forearm, one event; lower legs, eight events). CONCLUSION: All suspected case PPE ensembles either had post-doffing contamination events or other significant disadvantages to their use. This identified the need to design a unified PPE ensemble and doffing procedure, incorporating the most protective PPE considered for each body area. This work has been presented to, and reviewed by, key stakeholders to decide on a proposed unified ensemble, subject to further evaluation. PMID- 29325872 TI - Structure and function of a highly active Bile Salt Hydrolase (BSH) from Enterococcus faecalis and post-translational processing of BSH enzymes. AB - Bile Salt Hydrolase (BSH), a member of Cholylglycine hydrolase family, catalyzes the de-conjugation of bile acids and is evolutionarily related to penicillin V acylase (PVA) that hydrolyses a different substrate such as penicillin V. We report the three-dimensional structure of a BSH enzyme from the Gram-positive bacteria Enterococcus faecalis (EfBSH) which has manifold higher hydrolase activity compared to other known BSHs and displays unique allosteric catalytic property. The structural analysis revealed reduced secondary structure content compared to other known BSH structures, particularly devoid of an anti-parallel beta-sheet in the assembly loop and part of a beta-strand is converted to increase the length of a substrate binding loop 2. The analysis of the substrate binding pocket showed reduced volume owing to altered loop conformations and increased hydrophobicity contributed by a higher ratio of hydrophobic to hydrophilic groups present. The aromatic residues F18, Y20 and F65 participate in substrate binding. Thus, their mutation affects enzyme activity. Docking and Molecular Dynamics simulation studies showed effective polar complementarity present for the three hydroxyl (-OH) groups of GCA substrate in the binding site contributing to higher substrate specificity and efficient catalysis. These are unique features characteristics of this BSH enzyme and thought to contribute to its higher activity and specificity towards bile salts as well as allosteric effects. Further, mechanism of autocatalytic processing of Cholylglycine Hydrolases by the excision of an N-terminal Pre-peptide was examined by inserting different N-terminal pre-peptides in EfBSH sequence. The results suggest that two serine residues next to nucleophile cysteine are essential for autocalytic processing to remove precursor peptide. Since pre-peptide is absent in EfBSH the mutation of these serines is tolerated. This suggests that an evolution-mediated subordination of the pre-peptide excision site resulted in loss of pre-peptide in EfBSH and other related Cholylglycine hydrolases. PMID- 29325873 TI - Auditory sensory gating predicts acceptable noise level. PMID- 29325874 TI - Perceptual changes with monopolar and phantom electrode stimulation. AB - Phantom electrode (PE) stimulation is achieved by simultaneously stimulating out of-phase from two adjacent intra-cochlear electrodes with different amplitudes. If the basal electrode stimulates with a smaller amplitude than the apical electrode of the pair, the resulting electrical field is pushed away from the basal electrode producing a lower pitch. There is great interest in using PE stimulation in a processing strategy as it can be used to provide stimulation to regions of the cochlea located more apically than the most apical contact on the electrode array. The result is that even lower pitch sensations can be provided without additional risk of a deeper insertion. However, it is unknown if there are perceptual differences between monopolar (MP) and PE stimulation other than a shift in place pitch. Furthermore, it is unknown if the effect and magnitude of changing from MP to PE stimulation is dependent on electrode location. This study investigates the perceptual differences (including pitch and other sound quality differences) at multiple electrode positions using MP and PE stimulation using both a multidimensional scaling procedure (MDS) and a traditional scaling procedure. 10 Advanced Bionics users reported the perceptual distances between 5 single electrode (typically 1, 3, 5, 7, and 9) stimuli in either MP or PE (sigma = 0.5) mode. Subjects were asked to report how perceptually different each pair of stimuli were using any perceived differences except loudness. Subsequently, each stimulus was presented in isolation and subjects scaled how "high" or how "clean" each sounded. Results from the MDS task suggest that perceptual differences between MP and PE stimulation can be explained by a single dimension. The traditional scaling suggests that the single dimension is place pitch. PE stimulation elicits lower pitch perceptions in all cochlear regions. Analysis of Cone Beam Computer Tomography (CBCT) data suggests that PE stimulation may be more effective at the apical part of the cochlea. PE stimulation can be used for new sound coding strategies in order to extend the pitch range for cochlear implant (CI) users without perceptual side effects. PMID- 29325875 TI - Fatal thoracic empyema involving Campylobacter rectus: A case report. AB - We report the case of a 69-year-old man admitted for septic shock secondary to necrotic pneumoniae complicated by thoracic empyema of fatal issue. Microbiological examination of pleural liquid revealed a mixed anaerobic flora involving Campylobacter rectus and Actinomyces meyeri. Campylobacter rectus is an infrequent anaerobic pathogen of oral origin To our knowledge, this is the first case report of fatal C. rectus - associated thoracic empyema, and only the second reported case in which identification was successfully performed by MALDI-TOF MS. PMID- 29325876 TI - Nogo-A interacts with TrkA to alter nerve growth factor signaling in Nogo-A overexpressing PC12 cells. AB - The Nogo-A protein, originally discovered as a potent myelin-associated inhibitor of neurite outgrowth, is also expressed by certain neurons, especially during development and after injury, but its role in neuronal function is not completely known. In this report, we overexpressed Nogo-A in PC12 cells to use as a model to identify potential neuronal signaling pathways affected by endogenously expressed Nogo-A. Unexpectedly, our results show that viability of Nogo-A-overexpressing cells was reduced progressively due to apoptotic cell death following NGF treatment, but only after 24 h. Inhibitors of neutral sphingomyelinase prevented this loss of viability, suggesting that NGF induced the activation of a ceramide dependent cell death pathway. Nogo-A over-expression also changed NGF-induced phosphorylation of TrkA at tyrosines 490 and 674/675 from sustained to transient, and prevented the regulated intramembrane proteolysis of p75NTR, indicating that Nogo-A was altering the function of the two neurotrophin receptors. Co immunoprecipitation studies revealed that there was a physical association between TrkA and Nogo-A which appeared to be dependent on interactions in the Nogo-A-specific region of the protein. Taken together, our results indicate that Nogo-A influences NGF-mediated mechanisms involving the activation of TrkA and its interaction with p75NTR. PMID- 29325878 TI - Can We Identify Futility in Kids? An Evaluation of Admission Parameters Predicting 100% Mortality in 1,292 Severely Injured Children. AB - BACKGROUND: Objective parameters predicting futility of care in severely injured pediatric patients are lacking. Although futility of care has been investigated in a limited number of studies in trauma patients, none of these studies achieves a 100% success rate in a large cohort of pediatric patients. The purpose of the current study was to identify extreme laboratory values that could be used to predict 100% mortality in severely injured children. STUDY DESIGN: We evaluated a registry-based, historical cohort of all severely injured children (Level I trauma, younger than 16 years old) who were not dead on arrival between January 2010 and December 2016 from a single Level I trauma center. Extreme arrival laboratory data were evaluated both alone and in conjunction with traumatic brain injury. RESULTS: There were 1,292 patients who met inclusion criteria, of which 1,169 (90.5%) survived and 123 (9.5%) died. Those who died were significantly younger, with higher head Abbreviated Injury Scale scores and overall Injury Severity Scores. Single extreme laboratory values were identified that predicted mortality perfectly (100% positive predictive value): international normalized ratio >=3.0, pH <=6.95, base excess <= -22, platelet count <=30,000, hemoglobin <=5.0 g/dL, rapid thromboelastography <=30 mm, and rapid thromboelastography lysis at 30 minutes >=50%. When 2 laboratory values or the presence of traumatic brain injury were added, lower thresholds for futility were noted. CONCLUSIONS: Extreme admission laboratory values are capable of predicting 100% mortality and futility of additional care in severely injured children with a high level of accuracy. Validation of these single-center findings is warranted and, if supported, should initiate a discussion within the pediatric trauma community about application and cessation of resuscitation efforts to optimize resource use. PMID- 29325877 TI - DmCatD, a cathepsin D-like peptidase of the hematophagous insect Dipetalogaster maxima (Hemiptera: Reduviidae): Purification, bioinformatic analyses and the significance of its interaction with lipophorin in the internalization by developing oocytes. AB - DmCatD, a cathepsin D-like peptidase of the hematophagous insect Dipetalogaster maxima, is synthesized by the fat body and the ovary and functions as yolk protein precursor. Functionally, DmCatD is involved in vitellin proteolysis. In this work, we purified and sequenced DmCatD, performed bioinformatic analyses and investigated the events involved in its targeting and storage in developing oocytes. By ion exchange and gel filtration chromatography, DmCatD was purified from egg homogenates and its identity was confirmed by mass spectrometry. Approximately 73% of the full-length transcript was sequenced. The phylogeny indicated that DmCatD has features which suggest its distancing from "classical" cathepsins D. Bioinformatic analyses using a chimeric construct were employed to predict post-translational modifications. Structural modeling showed that DmCatD exhibited the expected folding for this type of enzyme, and an active site with conserved architecture. The interaction between DmCatD and lipophorin in the hemolymph was demonstrated by co-immunoprecipitation. Colocalization of both proteins in developing oocyte membranes and yolk bodies was detected by immunofluorescence. Docking assays favoring the interaction DmCatD-lipophorin were carried out after modeling lipophorin of a related triatomine species. Our results suggest that lipophorin acts as a carrier for DmCatD to facilitate its further internalization by the oocytes. The mechanisms involved in the uptake of peptidases within the oocytes of insects have not been reported. This is the first experimental work supporting the interaction between cathepsin D and lipophorin in an insect species, enabling us to propose a pathway for its targeting and storage in developing oocytes. PMID- 29325879 TI - Ovarian control and monitoring in amphibians. AB - Amphibian evolution spans over 350 million years, consequently this taxonomic group displays a wide, complex array of physiological adaptations and their diverse modes of reproduction are a prime example. Reproduction can be affected by taxonomy, geographic and altitudinal distribution, and environmental factors. With some exceptions, amphibians can be categorized into discontinuous (strictly seasonal) and continuous breeders. Temperature and its close association with other proximate and genetic factors control reproduction via a tight relationship with circadian rhythms which drive genetic and hormonal responses to the environment. In recent times, the relationship of proximate factors and reproduction has directly or indirectly lead to the decline of this taxonomic group. Conservationists are tackling the rapid loss of species through a wide range of approaches including captive rescue. However, there is still much to be learned about the mechanisms of reproductive control and its requirements in order to fabricate species-appropriate captive environments that address a variety of reproductive strategies. As with other taxonomic groups, assisted reproductive technologies and other reproductive monitoring tools such as ultrasound, hormone analysis and body condition indices can assist conservationists in optimizing captive husbandry and breeding. In this review we discuss some of the mechanisms of ovarian control and the different tools being used to monitor female reproduction. PMID- 29325880 TI - Cryoprotective effect of glutamine, taurine, and proline on post-thaw semen quality and DNA integrity of donkey spermatozoa. AB - This study was conducted to evaluate the effect of amino acid addition to semen on post-thaw quality of donkey spermatozoa. Eighteen ejaculates were pooled and divided into aliquots which were cryopreserved in Gent A(r) containing 1% ethylene glycol (Gent-EG) and supplemented with 0 (as control), 20, 40, or 60 mM of glutamine, proline, or taurine. The greatest concentration (60 mM) of glutamine and taurine resulted in greater (P < 0.001) post-thaw sperm motility. Amino acid supplementation did not improve (P > 0.05) sperm morphology and membrane plasma integrity compared with the control samples. Whereas, improvement (P < 0.05) of acrosome integrity was observed with use of 60 mM glutamine. After thawing, there were no differences (P > 0.05) in the sperm DNA fragmentation index (sDFI) among treatments. The 60 mM glutamine and 40 mM taurine treatments, however, resulted in a reduction (P < 0.05) in sDFI values in the first 6 h of semen incubation, compared with the control samples. At 24 h, the sDFI values were less (P < 0.05) in all supplemented as compared with control samples, except for the 20 mM proline treatment group. In conclusion, supplementation of the Gent EG extender with glutamine or taurine at 60 mM improved post-thaw donkey sperm quality. The addition of proline to the freezing extender, however, did not provide any significant enhancement in sperm quality, compared with the control group. PMID- 29325881 TI - Rv2204c, Rv0753c and Rv0009 antigens specific T cell responses in latent and active TB - a flow cytometry-based analysis. AB - High global prevalence of latent TB infection (LTBI) is a key challenge in distinguishing patients with active pulmonary TB (PTB) from those with LTBI. The functional profile of CD4+ and CD8+ T cell cytokines produced as a response to Mycobacterium tuberculosis antigens vary during the course of tuberculosis (TB) infection. We evaluated antigen-specific CD4+ and CD8+ T cell cytokine response after overnight in vitro stimulation of peripheral blood with mycobacterial antigens ESAT-6, CFP-10, Rv2204c, Rv0753c and Rv0009 by flow cytometry. A significantly higher frequency of antigen-specific CD4+ or CD8+ IFN-gamma+ T cells were found in LTBI than in PTB. Among all the antigens used, Rv2204c specific CD8+ IFN-gamma+ displayed the positivity of 72% and 24% in LTBI and PTB respectively. In contrast to IFN-gamma, the frequencies of CD4+ or CD8+ secreting TNF-alpha+ cells were significantly high in PTB compared to LTBI. CD8+TNF-alpha+ analysis showed 60% positivity in PTB and 13.6% positivity in LTBI against Rv0753c antigen stimulation. We also predicted Rv2204c specific CD8+ T cells secreting IL-10 or IL-4 showed maximum differentiation between LTBI and PTB. In conclusion, altered expression of Rv2204c-specific CD4+IFN-gamma+ and CD8+IL-4+ T cells in LTBI and PTB might be a useful biomarker to differentially diagnose LTBI and active TB. PMID- 29325882 TI - Pathophysiology of Escherichia coli pneumonia: Respective contribution of pathogenicity islands to virulence. AB - Ventilator-associated pneumonia (VAP) remains the most frequent life-threatening nosocomial infection. Enterobacteriaceae including Escherichia coli are increasingly involved. If a cumulative effect of pathogenicity islands (PAIs) has been shown for E. coli virulence in urinary tract or systemic infections, very little is known regarding pathophysiology of E. coli pneumonia. This study aimed to determine the role of each of the 7 PAIs present in pathogenic E. coli strain 536 in pneumonia pathophysiology. We used mutant strains to screen pathophysiological role of PAI in a rat pneumonia model. We also test individual gene mutants within PAI identified to be involved in pneumonia pathogenesis. Finally, we determined the prevalence of these genes of interest in E. coli isolates from feces and airways of ventilated patients. Only PAIs I and III were significantly associated with rat pneumonia pathogenicity. Only the antigen-43 (Ag43) gene in PAI III was significantly associated with bacterial pathogenicity. The prevalence of tested genes in fecal and airway isolates of ventilated patients did not differ between isolates. In contrast, genes encoding Ag43, the F17-fimbriae subunits, HmuR and SepA were more prevalent in VAP isolates with statistical significance for hmuR when compared to airway colonizing isolates. The E. coli PAIs involved in lung pathogenicity differed from those involved in urinary tract and bloodstream infections. Overall, extraintestinal E. coli virulence seems to rely on a combination of numerous virulence genes that have a cumulative effect depending on the infection site. PMID- 29325884 TI - Experimental Low Back Pain Decreased Trunk Muscle Activity in Currently Asymptomatic Recurrent Low Back Pain Patients During Step Tasks. AB - : Low back pain (LBP) patients show reorganized trunk muscle activity but if similar changes are manifest in recurrent LBP (R-LBP) patients during asymptomatic periods remains unknown. In 26 healthy and 27 currently asymptomatic R-LBP participants electromyographic activity (EMG) was recorded from trunk and gluteal muscles during series of stepping up and down on a step bench before and during experimentally intramuscular induced unilateral and bilateral LBP. Pain intensity was assessed using numeric rating scale (NRS) scores. Root mean square EMG (RMS-EMG) normalized to maximal voluntary contraction EMG and pain-evoked differences from baseline (DeltaRMS-EMG) were analyzed. Step task duration was calculated from foot sensors. R-LBP compared with controls showed higher baseline RMS-EMG and NRS scores of experimental pain (P < .05). In both groups, bilateral compared with unilateral experimental NRS scores were higher (P < .001) and patients compared with controls reported higher NRS scores during both pain conditions (P < .04). In patients, unilateral pain decreased DeltaRMS-EMG in the Iliocostalis muscle and bilateral pain decreased DeltaRMS-EMG in all back and gluteal muscles during step tasks (P < .05) compared with controls. In controls, bilateral versus unilateral experimental pain induced increased step task duration and trunk RMS-EMG whereas both pain conditions decreased step task duration and trunk RMS-EMG in R-LBP patients compared with controls (P < .05). PERSPECTIVE: Task duration and trunk muscle activity increased in controls and decreased in R-LBP patients during experimental muscle LBP. These results indicate protective strategies in controls during acute pain whereas R-LBP patients showed higher pain intensity and altered strategies that may be caused by the higher pain intensity, but the long-term consequence remains unknown. PMID- 29325883 TI - A Functional Neuroimaging Study of Expectancy Effects on Pain Response in Patients With Knee Osteoarthritis. AB - : Placebo treatments and healing rituals share much in common, such as the effects of expectancy, and have been used since the beginning of human history to treat pain. Previous mechanistic neuroimaging studies investigating the effects of expectancy on placebo analgesia have used young, healthy volunteers. Using functional magnetic resonance imaging (fMRI), we aimed to investigate the neural mechanisms by which expectancy evokes analgesia in older adults living with a chronic pain disorder and determine whether there are interactions with active treatment. In this fMRI study, we investigated the brain networks underlying expectancy in participants with chronic pain due to knee osteoarthritis (OA) after verum (genuine) and sham electroacupuncture treatment before and after experiencing calibrated experimental heat pain using a well tested expectancy manipulation model. We found that expectancy significantly and similarly modulates the pain experience in knee OA patients in both verum (n = 21, 11 female; mean +/- SD age 57 +/- 7 years) and sham (n = 22, 15 female; mean +/- SD age 59 +/- 7 years) acupuncture treatment groups. However, there were different patterns of changes in fMRI indices of brain activity associated with verum and sham treatment modalities specifically in the lateral prefrontal cortex. We also found that continuous electroacupuncture in knee OA patients can evoke significant regional coherence decreases in pain associated brain regions. Our results suggest that expectancy modulates the experience of pain in knee OA patients but may work through different pathways depending on the treatment modality and, we speculate, on pathophysiological states of the participants. PERSPECTIVE: To investigate the neural mechanisms underlying pain modulation, we used an expectancy manipulation model and fMRI to study response to heat pain stimuli before and after verum or sham acupuncture treatment in chronic pain patients. Both relieve pain and each is each associated with a distinct pattern of brain activation. PMID- 29325885 TI - 9-Aminoacridine-based agents impair the bovine viral diarrhea virus (BVDV) replication targeting the RNA-dependent RNA polymerase (RdRp). AB - Bovine viral diarrhea virus (BVDV) infection is still a plague that causes important livestock pandemics. Despite the availability of vaccines against BVDV, and the implementation of massive eradication or control programs, this virus still constitutes a serious agronomic burden. Therefore, the alternative approach to combat Pestivirus infections, based on the development of antiviral agents that specifically inhibit the replication of these viruses, is of preeminent actuality and importance. Capitalizing from a long-standing experience in antiviral drug design and development, in this work we present and characterize a series of small molecules based on the 9-aminoacridine scaffold that exhibit potent anti-BVDV activity coupled with low cytotoxicity. The relevant viral protein target - the RNA-dependent RNA polymerase - the binding mode, and the mechanism of action of these new antivirals have been determined by a combination of in vitro (i.e., enzymatic inhibition, isothermal titration calorimetry and site-directed mutagenesis assays) and computational experiments. The overall results obtained confirm that these acridine-based derivatives are promising compounds in the treatment of BVDV infections and, based on the reported structure-activity relationship, can be selected as a starting point for the design of a new generation of improved, safe and selective anti-BVDV agents. PMID- 29325886 TI - Comparison analysis of orbital shape and volume in unilateral fractured orbits. AB - Facial fractures often result in changes of the orbital volume. These changes can be measured in three-dimensional (3D) computed tomography (CT) scans for preoperative planning and postoperative evaluation. The aim of this study was to analyze the orbital volume and shape before and after surgical treatment of unilateral orbital fractures using semi-automatic image segmentation and registration techniques. The orbital volume in 21 patients was assessed by a semi automatic model-based segmentation method. The fractured orbit was compared relative to the contralateral orbit. The same procedure was performed for the postoperative evaluation. Two observers performed the segmentation procedure, and the inter- and intraobserver variability was evaluated. The interobserver variability (mean volume difference +/- 1.96 SD) was -0.6 +/- 1.0 ml in the first trial and 0.7 +/- 0.8 ml in the second trial. The intra-observer variability was 0.2 +/- 0.7 ml for the first observer and 1.1 +/- 0.9 ml for the second observer. The average volume overlap (Dice similarity coefficient) between the fractured and contralateral side increased after surgery, while the mean and maximum surface distance decreased, indicating that the surgery contributed to a re establishment of size and shape. In conclusion, our study shows that the semi automatic segmentation method has precision for detecting volume differences down to 1.0 ml. The combination of semi-automatic segmentation and 3D shape analysis provides a powerful tool for planning and evaluating treatment of orbital fractures. PMID- 29325887 TI - Stiffness and strength of cranioplastic implant systems in comparison to cranial bone. AB - PURPOSE: The aim of this study was to evaluate skull replacement options after decompressive craniectomy by systematically investigating which combination of geometrical properties and material selection would result in a mechanical response comparable in stiffness to that of native skull bone and a strength as high or higher than the same. MATERIALS AND METHODS: The study was conducted using a Finite Element Model of the top part of a human skull. Native skull bone, autografts and commercial implants made of PEEK, solid titanium, two titanium meshes and a titanium-ceramic composite were modeled under a set load to evaluate deformation and maximum stress. RESULTS: The computational result showed a large variation of the strength and effective stiffness of the autografts and implants. The stiffness of native bone varied by a factor of 20 and the strength by a factor of eight. The implants span the entire span of the native skull, both in stiffness and strength. CONCLUSION: All the investigated implant materials had a potential for having the same effective stiffness as the native skull bone. All the materials also had the potential to be as strong as the native bone. To match inherent properties, the best choice of material and thickness is thus patient specific, depending on the quality of the patient's native bone. PMID- 29325888 TI - Computed exophthalmometry is an accurate and reproducible method for the measuring of eyeballs' protrusion. AB - PURPOSE: The aim of this study was to assess reproducibility of the repeated measurements from proposed computed exophthalmometry and to make a comparison with the Hertel exophthalmometer. METHODS: Computed tomography scans of patients with pathological (group 1) and intact orbits (group 2) were included in this retrospective study. In both groups, a single investigator measured a difference of eyeballs' protrusion using the proposed method of computed exophthalmometry. Briefly, the distances from the corneal apices of the left and right eyeballs to the line placed through the styloid processes of the temporal bones were measured and compared to each other three times independently. RESULTS: In some patients with intact lateral orbital rims the results of computed exophthalmometry correlated with the measurements from the Hetrel exophthalmometer. The analysis of the triple measurements with computed exophthalmometry revealed no significant difference in the value of standard deviation of the results in patients with intact and pathological orbits. In comparison with the Hertel-type exophthalmometry, the proposed method demonstrated very low variability and high repeatability of the measurements. The difference of 0.10-0.87 mm in the eyeballs protrusion should be considered as normal. Computed exophthalmometry is an accurate and reproducible method, which can be used for the measurements of eyeballs' protrusion. PMID- 29325889 TI - Early cell response of osteogenic cells on differently modified implant surfaces: Sequences of cell proliferation, adherence and differentiation. AB - OBJECTIVES: Osseointegration of dental implants is a crucial prerequisite for long-term survival. Therefore, surface modifications are needed to interact with the extracellular environment and to trigger osteogenic cell responses such as cell proliferation, adherence, and differentiation. The purpose of this study was to investigate different surface modifications in vitro over 2 weeks. MATERIALS AND METHODS: Commercially available cells from a human osteogenic cell line (HHOB c) were cultivated on the following surfaces: titanium with smooth surfaces (polished titanium (P), machined titanium (M), polyetheretherketone (Peek)), titanium with rough and hydrophilised surfaces (acid etched titanium (A), sandblasted acid etched titanium (SA and SA2), sandblasted acid etched hydrophilised (SAH), titanium plasma painted titanium (TPS)), titanium with calcium phosphate-containing surfaces (titanium plasma painted calcium phosphate modified titanium (TPS-CaP), sandblasted calcium phosphate modified titanium (S CaP), sandblasted acid etched calcium phosphate modified titanium (SA-CaP)), and zirconium-oxide (yttrium amplified zirconium (Z), yttrium amplified Ca2+ delivering zirconium (Z-Ca)). Tissue culture polystyrene (TCPS) served as a control. Cell count was assessed after 24 h, 48 h, 72 h, 7 d, and 14 d; osteogenic cell adherence and differentiation were analysed by using cellular Quantitative Immuno-Cytochemistry (QIC) assay for alkaline phosphatase (AP), osteocalcin (OC), integrin alpha V (ITGAV), and talin (T). RESULTS: All tested surfaces showed a positive influence on the differentiation and adherence of osteogenic cells, especially P, M, A, TCPS, and Peek. After 48 h, the surfaces M, SA and SAH had induced a positive influence on adherence, whereas SA2, SA, and SAH triggered proliferation after 14 d. CONCLUSIONS: Rough and hydrophilised surface modifications, such as SAH, trigger osteogenic cell responses. These in vitro results highlight the potential use of SAH surface modifications of dental implants and indicate further clinical studies are warranted. PMID- 29325890 TI - Calorie Labels on the Restaurant Menu: Is the Use of Weight-Control Behaviors Related to Ordering Decisions? AB - BACKGROUND: There is emerging evidence that calorie information on restaurant menus does not similarly influence the ordering decisions of all population groups and may have unintended consequences for individuals who struggle with disordered eating or other weight-related concerns. OBJECTIVE: This study describes demographic patterns in the use of calorie information on restaurant menus and investigates relationships between using this information to limit calorie intake and measures of restaurant visit frequency and weight-related concerns and behavior. DESIGN/PARTICIPANTS: There were 788 men and 1042 women (mean age=31.0+/-1.6 years) who participated in the fourth wave of the Project EAT study. Participants were initially recruited from Minneapolis-St Paul, MN, schools and completed EAT-IV surveys online or by mail from 2015 to 2016. MAIN OUTCOME MEASURES: Participants self-reported weight-related concerns, restaurant eating, intuitive eating, dieting, healthy (eg, exercise) and unhealthy (eg, use of laxatives) weight-control behaviors, and binge eating. STATISTICAL ANALYSES PERFORMED: Descriptive statistics and linear and logistic regression models accounting for demographics and weight status. RESULTS: Approximately half of participants (52.7%) reported they had noticed calorie information while purchasing a meal or snack in a restaurant within the previous month. Among individuals who noticed calorie information, 38.2% reported they did not use it in deciding what to order. The most common use of calorie information was to avoid high-calorie menu items (50.1%) or to decide on a smaller portion (20.2%). Using menu labels to limit calories was related to binge eating among women and was associated with more weight-related concerns, dieting, and unhealthy weight control behaviors among both women and men. CONCLUSIONS: Nutrition educators and other health care professionals should talk with clients who struggle with disordered eating or weight-related concerns to learn about their use of calorie information at restaurants, address any potential unintended consequences, and promote healthy uses of calorie information. PMID- 29325891 TI - Fresh Fruit and Vegetable Program and Requests for Fruits and Vegetables Outside School Settings. AB - BACKGROUND: Consumption of fruits and vegetables (F/V) among elementary school aged children remains inadequate, especially among low-income children. The US Department of Agriculture's Fresh Fruit and Vegetable Program (FFVP) provides F/V as snacks to children during the school day, outside of school meals. School based initiatives are successful in changing behaviors in school settings; however, their influence on behaviors outside of schools needs investigation. OBJECTIVE: To examine whether FFVP participation is associated with F/V requests at stores, self-efficacy to ask for and choose F/V at home, and F/V consumption. DESIGN: Cross-sectional study. PARTICIPANT/SETTING: Fourth graders in six classrooms (n=296) from three urban, low-income school districts in Phoenix, AZ, were surveyed during 2015; one FFVP and one non-FFVP school from each district that were similar in school size, percent free/reduced-price meal eligibility, and race/ethnicity of enrolled students were selected. MAIN OUTCOME MEASURES: Children's self-reported F/V requests during shopping, their self-efficacy to ask for and choose F/V at home, and F/V consumption on the previous day (non-FFVP school day) were measured using questions adapted from validated surveys. STATISTICAL ANALYSIS: Multivariable mixed-effect regression models, adjusting for clustering of students within classes and classes within schools were explored. RESULTS: In models adjusting for individual-level factors (ie, age and sex) only, several significant positive associations were observed between school FFVP participation and healthier F/V outcomes. After additionally adjusting for school level factors (ie, total enrollment and % Hispanic/Latino students) significant associations were observed between school FFVP participation and more requests for vegetables during shopping (P<0.001), higher scores on self-efficacy to choose vegetables at home (P=0.004), stronger preferences for vegetables (P<0.001), and more frequent consumption of fruit (P=0.006). CONCLUSIONS: School FFVP participation was associated with more requests for vegetables during shopping and higher self-efficacy to make healthy choices at home, suggesting the influence of the FFVP may extend beyond the school day. PMID- 29325892 TI - Added Sugar Intake among Pregnant Women in the United States: National Health and Nutrition Examination Survey 2003-2012. AB - BACKGROUND: Despite associations of dietary added sugar with excess weight gain and chronic disease risk, intake among most Americans exceeds the recommended limits (<10% total energy). Maternal diet plays an important role in pregnancy related outcomes, but little is known about the extent of added sugar intake during pregnancy. OBJECTIVE: To assess intake and identify the top sources of added sugars in the diets of pregnant vs nonpregnant women in the United States. DESIGN: Cross-sectional analysis of data from the National Health and Nutrition Examination Survey (NHANES), 2003-2004 to 2011-2012. PARTICIPANTS: Four thousand one hundred seventy-nine pregnant and nonpregnant women (aged 20 to 39 years) who completed a dietary recall. STATISTICAL ANALYSES PERFORMED: Survey-weighted analyses were used to estimate means (95% CIs) in total grams and as percentage of total energy for added sugar intake by pregnancy status and by demographic subgroup and to identify leading sources of added sugar. RESULTS: Added sugar intake trended toward being higher in pregnant compared with nonpregnant women in absolute grams, 85.1 g (95% CI: 77.4 to 92.7) vs 76.7 g (95% CI: 73.6 to 79.9), respectively (P=0.06), but was lower among pregnant women when total energy intake was accounted for, 14.8% (95% CI: 13.8 to 15.7) vs 15.9% (95% CI: 15.2 to 16.6) of total energy, respectively (P=0.03). Among pregnant women, added sugar intake was similar among demographic subgroups. However, in multivariable regression, pregnancy status significantly modified the associations of education and income with added sugar intake, whereby less educated and lower-income women who were pregnant had lower added sugar intakes compared with those who were not pregnant, but more educated or higher-income women did not exhibit this pattern. The top five sources of added sugar for all women were sugar-sweetened beverages; cakes, cookies, and pastries; sugars and sweets; juice drinks and smoothies; and milk-based desserts. CONCLUSIONS: Although pregnant women had higher energy intakes, this was not attributed to higher intakes of added sugar. Although education and income affected consumption during pregnancy, intake of added sugar among all women, regardless of pregnancy status, exceeded recommendations. PMID- 29325893 TI - WITHDRAWN: Stilamin inhibits intestinal and pancreatic injury in rats with severe acute pancreatitis by down-regulating LCN2 expression. AB - This article has been withdrawn at the request of the authors. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our business/policies/article-withdrawal. PMID- 29325894 TI - Reference values for the creatine kinase response to professional Australian football match-play. AB - OBJECTIVES: Due to the importance of monitoring markers of muscle damage in high level sport from a medical and athlete recovery perspective, this study aimed to determine the upper limits of normal (ULN) for post-match plasma creatine kinase (CK) in professional Australian footballers. Raw CK values were considered, along with intra-individual deviations from the season-mean. DESIGN: Case series. METHODS: CK was collected between 36-48h following professional Australian football match-play. A total of 1565 samples from 62 players were assessed over three consecutive seasons. The ULN were determined for raw scores and as a percentage of each player's season-mean response. RESULTS: The ULN for raw CK, as determined by the 97.5th, 95th and 90th percentiles were 1715 (90%CI: 1605-1890), 1380 (90%CI: 1325-1475) and 1110 (90%CI: 1050-1170) UL-1 respectively. The ULN intra-individual response (97.5th percentile) was defined as a player's score being greater than 94% (90%CI: 84-102%) above their season-mean. CONCLUSIONS: Professional Australian football elicits a profound effect on the CK response. The values provide a reference tool for athletes competing at this level of competition. The novel method of representing the CK response as a percentage difference from an individuals' season-mean enables a superior comparative ability between CK responses and reduces the high CK responder bias that occurs when using raw scores alone. The data will assist medical and conditioning staff in excluding medical emergencies and also aid in individualising the prescription of training loads and recovery to optimise athlete performance and minimise further muscle damage. PMID- 29325895 TI - The vertebrate limb: An evolving complex of self-organizing systems. AB - The paired appendages (fins or limbs) of jawed vertebrates contain an endoskeleton consisting of nodules, bars and, in some groups, plates of cartilage, or bone arising from replacement of cartilaginous templates. The generation of the endoskeletal elements occurs by processes involving production and diffusion of morphogens, with, variously, positive and negative feedback circuits, adhesion, and receptor dynamics with similarities to the mechanism for chemical pattern formation proposed by Alan Turing. This review presents a unified interpretation of the evolution and functioning of these mechanisms. Studies are described indicating that protocondensations, compacted mesenchymal cell aggregates that prefigure the appendicular skeleton, arise through the adhesive activity of galectin-1, a matricellular protein with skeletogenic homologs in all jawed vertebrates. In the cartilaginous and lobe-finned fishes (and to a variable extent in ray-finned fishes) it additionally cooperates with an isoform of galectin-8 to constitute a self-organizing network capable of generating arrays of preskeletal nodules, bars and plates. Further, in the tetrapods, a putative galectin-8 control module was acquired that may have enabled proximodistal increase in the number of protocondensations. In parallel to this, other self-organizing networks emerged that acted, via Bmp, Wnt, Sox9 and Runx2, as well as transforming factor-beta and fibronectin, to convert protocondensations into skeletal tissues. The progressive appearance and integration of these skeletogenic networks over evolution occurred in the context of an independently evolved system of Hox protein and Shh gradients that interfaced with them to tune the spatial wavelengths and refine the identities of the resulting arrays of elements. PMID- 29325896 TI - Gut flora-dependent metabolite Trimethylamine-N-oxide accelerates endothelial cell senescence and vascular aging through oxidative stress. AB - Trimethylamine-N-oxide (TMAO), gut microbiota-dependent metabolites, has been shown to be associated with cardiovascular diseases. However, little is known about the relationship between TMAO and vascular aging. Here, we observed a change in TMAO during the aging process and the effects of TMAO on vascular aging and endothelial cell (EC) senescence. We analyzed age-related plasma levels of TMAO in young adults (18-44 years old), older adults (>= 65 years old), and 1 month-old, 3-month-old, 6-month-old and 10-month-old senescence-accelerated mouse prone 8 (SAMP8) and age-matched senescence-accelerated mouse resistance 1 (SAMR1) models. We found that circulating TMAO increased with age both in humans and mice. Next, we observed that a TMAO treatment for 16 weeks induced vascular aging in SAMR1 mice and accelerated the process in SAMP8 mice, as measured by an upregulation of senescence markers including senescence-associated beta galactosidase (SA-beta-gal), p53, and p21, vascular dysfunction and remodeling. In vitro, we demonstrated that prolonged TMAO treatment induced senescence in human umbilical vein endothelial cells (HUVECs), characterized by reduced cell proliferation, increased expressions of senescence markers, stagnate G0/G1, and impaired cell migration. Furthermore, TMAO suppressed sirtuin 1 (SIRT1) expression and increased oxidative stress both in vivo and in vitro and then activated the p53/p21/Rb pathway resulting in increased p53, acetylation of p53, p21, and decreased CDK2, cyclinE1, and phosphorylation of Rb. In summary, these data suggest that elevated circulating TMAO during the aging process may deteriorate EC senescence and vascular aging, which is probably associated with repression of SIRT1 expression and increased oxidative stress, and, thus, the activation of the p53/p21/Rb pathway. PMID- 29325897 TI - An improved cell-permeable fluorogenic substrate as the basis for a highly sensitive test for NAD(P)H quinone oxidoreductase 1 (NQO1) in living cells. AB - NAD(P)H:quinone oxidoreductase 1 (NQO1) is a flavoenzyme upregulated in response to oxidative stress and in some cancers. Its upregulation by compounds has been used as an indicator of their potential anti-cancer properties. In this study we have designed, produced and tested a fluorogenic coumarin conjugate which selectively releases highly fluorescent 4-methylumbelliferone (4-MU) in the presence of NQO1. It was found that measuring 4-MU release rapidly and specifically quantitated NQO1 levels in vitro and in live cells. Both the substrate and its products freely perfused through cell membranes and were non toxic. The substrate was very specific with low background, and the assay itself could be done in less than 10minutes. This is the first assay to allow the quantitation of NQO1 in live cells which can then be retained for further experiments. PMID- 29325898 TI - Treatment of mantle cell lymphoma in older adults. AB - Mantle cell lymphoma (MCL) predominantly affects older adults, with a median age at diagnosis of 70years. A frequently aggressive yet incurable lymphoma, the goal of therapy for MCL is to turn a potentially life-threatening illness into a chronic disease with prolonged periods of remission. Large randomized trial data supports the standard treatment in younger patients of cytarabine-based induction followed by autologous stem cell transplant. Most patients will not be eligible for this intensive approach based on older age, comorbidities, and functional status, making the geriatric assessment an essential step in choosing the appropriate strategy. For these older patients, an increasing number of chemotherapy and non-chemotherapy based therapies are available that allow oncologists to better tailor treatment to the fitness of the patient. We will review treatment options for older patients with MCL in the first line and relapsed/refractory settings, highlighting the available evidence for providing longer progression-free intervals while also minimizing the adverse effects of unduly aggressive treatment. PMID- 29325900 TI - Orexin-B modulates synaptic transmission of rod bipolar cells in rat retina. AB - Orexin-A, -B play a crucial role in arousal and feeding by activating two G protein-coupled receptors: orexin receptor 1 (OX1R) and orexin receptor 2 (OX2R). Orexins, along with orexin receptors, are expressed in retinal neurons, and they have been shown to differentially modulate excitatory AMPA receptors of amacrine and ganglion cells in the inner retina. In this work we report that orexin-B modulates the activity of rod bipolar cells (RBCs) located in the outer retina of rat. Intravitreal injection of orexin-B increased the amplitude of the scotopic electroretinographic b-wave, a reflection of RBC activity, recorded in vivo. Patch clamp recordings in rat retinal slices showed that orexin-B did not change glutamatergic excitatory component of the RBC response driven by photoreceptors. Effects of orexin-B on GABA receptor-mediated synaptic transmission of RBCs were then examined. In retinal slice preparations orexin-B suppressed GABA receptor mediated inhibitory postsynaptic currents of RBCs in the inner plexiform layer. Furthermore, using whole-cell recordings in isolated RBCs it was shown that orexin-B suppressed GABAC receptor-, but not GABAA receptor-, mediated currents of the RBCs, an effect that was blocked by OX1R and OX2R antagonists. The orexin B-induced inhibition of GABAC currents was likely mediated by a Gi/o/PC-PLC/Ca2+ independent PKC signaling pathway, as such inhibition was absent when each step of the above-pathway was blocked with GDP-beta-S/pertussis toxin (for Gi/o), D609 (for PLC), bisindolylmaleimide IV (for PKC)/rottlerin (for PKCdelta), respectively. The orexin-B-induced potentiation of RBC activity may improve visual acuity and contrast sensitivity of the animal during the dark period (wake phase). PMID- 29325899 TI - Do ketone bodies mediate the anti-seizure effects of the ketogenic diet? AB - Although the mechanisms underlying the anti-seizure effects of the high-fat ketogenic diet (KD) remain unclear, a long-standing question has been whether ketone bodies (i.e., beta-hydroxybutyrate, acetoacetate and acetone), either alone or in combination, contribute mechanistically. The traditional belief has been that while ketone bodies reflect enhanced fatty acid oxidation and a general shift toward intermediary metabolism, they are not likely to be the key mediators of the KD's clinical effects, as blood levels of beta-hydroxybutyrate do not correlate consistently with improved seizure control. Against this unresolved backdrop, new data support ketone bodies as having anti-seizure actions. Specifically, beta-hydroxybutyrate has been shown to interact with multiple novel molecular targets such as histone deacetylases, hydroxycarboxylic acid receptors on immune cells, and the NLRP3 inflammasome. Clearly, as a diet-based therapy is expected to render a broad array of biochemical, molecular, and cellular changes, no single mechanism can explain how the KD works. Specific metabolic substrates or enzymes are only a few of many important factors influenced by the KD that can collectively influence brain hyperexcitability and hypersynchrony. This review summarizes recent novel experimental findings supporting the anti-seizure and neuroprotective properties of ketone bodies. PMID- 29325901 TI - Dynamic structure of lower limb joint angles during walking post-stroke. AB - BACKGROUND: Variability in joint kinematics is necessary for adaptability and response to everyday perturbations; however, intrinsic neuromotor changes secondary to stroke often cause abnormal movement patterns. How these abnormal movement patterns relate to joint kinematic variability and its influence on post stroke walking impairments is not well understood. OBJECTIVE: The purpose of this study was to evaluate the movement variability at the individual joint level in the paretic and non-paretic limbs of individuals post-stroke. METHODS: Seven individuals with hemiparesis post-stroke walked on a treadmill for two minutes at their self-selected speed and the average speed of the six-minute walk test while kinematics were recorded using motion-capture. Variability in hip, knee, and ankle flexion/extension angles during walking were quantified with the Lyapunov exponent (LyE). Interlimb differences were evaluated. RESULTS: The paretic side LyE was higher than the non-paretic side at both self-selected speed (Hip: 50%; Knee: 74%), and the average speed of the 6-min walk test (Hip: 15%; Knee: 93%). CONCLUSION: Differences in joint kinematic variability between limbs of persons post-stroke supports further study of the source of non-paretic limb deviations as well as the clinical implications of joint kinematic variability in persons post-stroke. The development of bilaterally-targeted post-stroke gait interventions to address variability in both limbs may promote improved outcomes. PMID- 29325902 TI - Which data should be tracked in forward-dynamic optimisation to best predict muscle forces in a pathological co-contraction case? AB - The choice of the cost-function for predicting muscle forces during a movement remains a challenge, especially in patients with neuromuscular disorders. Forward dynamics-based optimisations mainly track joint kinematics or torques, combined with a least-excitation criterion. Tracking marker trajectories and/or electromyography (EMG) has rarely been proposed. Our objective was to determine the best tracking objective-function to accurately predict the upper-limb muscle forces. A musculoskeletal model was created and EMG was simulated to obtain a reference movement - a shoulder abduction. A Gaussian noise (mean = 0; standard deviation = 15%) was added to the simulated EMG. Another noise - corresponding to the actual soft tissue artefacts (STA) of experimental shoulder abduction movements - was added to the trajectories of the markers placed on the model. Muscle forces were estimated from these noisy data, using forward dynamics assisted by six non-linear least-squared objective-functions. These functions involved the tracking of marker trajectories, joint angles or torques, with and without EMG-tracking. All six approaches used the same musculoskeletal model and were solved using a direct multiple shooting algorithm. Finally, the predicted joint angles, muscle forces and activations were compared to the reference values, using root-mean-square errors (RMSe) and biases. The force RMSe of the approach tracking both marker trajectories and EMG (18.45 +/- 12.60 N) was almost five times lower than the one of the approach tracking only joint angles (82.37 +/- 66.26 N) or torques (85.10 +/- 116.40 N). Therefore, using EMG as a complementary tracking-data in forward dynamics seems to be promising for the estimation of muscle forces. PMID- 29325903 TI - GATA4 Loss-of-Function Mutation and the Congenitally Bicuspid Aortic Valve. AB - Aggregating evidence suggests that genetic determinants play a pivotal role in the pathogenesis of the congenitally bicuspid aortic valve (BAV). BAV is of pronounced genetic heterogeneity, and the genetic components underlying BAV in an overwhelming majority of patients remain elusive. In the current study, the whole coding exons and adjacent introns, as well as 5' and 3' untranslated regions of the GATA4 gene, which codes for a zinc-finger transcription factor crucial for the normal development of the aortic valve, were screened by direct sequencing in 150 index patients with congenital BAV. The available family members of an identified mutation carrier and 300 unrelated, ethnically matched healthy individuals used as controls were also genotyped for GATA4. The functional effect of the mutation was characterized using a dual-luciferase reporter assay system. As a result, a novel heterozygous GATA4 mutation, p.E147X, was identified in a family with BAV transmitted in an autosomal dominant pattern. The nonsense mutation was absent in 600 control chromosomes. Functional deciphers revealed that the mutant GATA4 protein lost transcriptional activity compared with its wild-type counterpart. Furthermore, the mutation disrupted the synergistic transcriptional activation between GATA4 and NKX2.5, another transcription factor responsible for BAV. In conclusion, this study associates the GATA4 loss-of function mutation with enhanced susceptibility to a BAV, thus providing novel insight into the molecular mechanism underpinning the BAV. PMID- 29325904 TI - Impact of Complete Revascularization on Six-Year Clinical Outcomes and Incidence of Acute Decompensated Heart Failure in Patients With ST-Segment Elevation Myocardial Infarction and Multivessel Coronary Artery Disease. AB - It remains unclear whether complete revascularization (CR) reduces the incidences of acute decompensated heart failure (ADHF) and adverse cardiac outcomes in patients with ST-segment elevation myocardial infarction (STEMI) and multivessel coronary artery disease (MVD). A total of 453 hemodynamically stable patients with STEMI and MVD were retrospectively evaluated; the patients were divided into 2 groups according to interventional strategy: CR (n = 240) and incomplete revascularization (IR) (n = 213). We analyzed the incidences of ADHF and major adverse cardiac events (MACE; a composite of all-cause mortality, myocardial infarction, and any revascularization) over a long follow-up period (median 6.3 years). MACE developed in 158 patients (34.9%), and 40 patients (8.8%) were re admitted because of ADHF developing during follow-up. Results after propensity matching showed that CR did not reduce the incidence of ADHF (hazard ratio [HR] for IR 1.63, 95% confidence interval [CI] 0.63 to 4.22, p = 0.311). However, IR increased the risk of MACE (HR 1.73, 95% CI 1.09 to 2.74, p = 0.021), attributable principally to an increased risk of nontarget vessel revascularization (HR 3.12, 95% CI 1.23 to 7.92, p = 0.039). Although CR did not reduce the incidence of ADHF, CR might reduce repeat revascularization to treat non-infarct-related arteries in hemodynamically stable patients with STEMI and MVD. PMID- 29325905 TI - Infiltrating macrophages are broadly activated at the early stage to support acute skeletal muscle injury repair. AB - Acute skeletal muscle injury repair requires an adequate inflammatory response predominated by macrophage infiltration. We studied the activation of infiltrating macrophages by analyzing the expression of M1/M2 signature genes. Most of the intramuscular macrophages were Ly6Chi at day 1 after BaCl2 injection, while many were Ly6Clo at day 3. Ly6Chi macrophages at day 1 expressed a high level of both M1 and M2 genes, and the Ly6Chi and Ly6Clo macrophages at day 3 expressed a similar level of many M1/M2 genes. Infiltrating macrophages are broadly activated rather than polarized at the early stage to support acute skeletal muscle injury repair. PMID- 29325906 TI - Immune-related miRNA expression patterns in peripheral blood mononuclear cells differ in multiple sclerosis relapse and remission. AB - MiRNAs were shown to participate in development of autoimmune inflammatory process in multiple sclerosis (MS). To investigate miRNAs involvement in relapse remission MS course, we analyzed expression of immune-related miRNAs in PBMC of treatment-naive relapsing and remitting MS patients and healthy controls. The upregulation of miR-126-3p, miR-146b-5p, miR-155, miR-196a-5p, miR-21-5p, miR-223 3p, miR-326 and miR-379-5p in remission compared to relapse was observed; when apply gender stratification, miR-223-3p and miR-379-5p were upregulated only in men. Therefore, miRNAs play essential role in maintaining stable MS course and this process has certain gender-specific differences. PMID- 29325907 TI - Corrigendum to 'Cannabinoid CB1 receptor inverse agonist MJ08 stimulates glucose production via hepatic sympathetic innervation in rats': European Journal of Pharmacology 814 (2017) 232-239. PMID- 29325908 TI - Corrigendum to ' Rosuvastatin inhibits pressure-induced fibrotic responses via the expression regulation of prostacyclin and prostaglandin E 2 in rat renal tubular cells.': [European Journal of Pharmacology 700 (2013) 65-73]. PMID- 29325909 TI - Corrigendum to Trans-4-methoxy-beta-nitrostyrene relaxes rat thoracic aorta through a sGC-dependent pathway: European Journal of Pharmacology 807 (2017) 182 189. PMID- 29325910 TI - Corrigendum to Additional effect of metformin and celecoxib against lipid dysregulation and adipose tissue inflammation in high-fat fed rats with insulin resistance and fatty liver: [Eur.J.Pharmacol.789(2016)60-67]. PMID- 29325911 TI - Corrigendum to: "Preventive and therapeutic effects of caffeic acid against inflammatory injury in striatum of MPTP-treated mice": [Eur.J.Pharmacol.670(2011)441-447]. PMID- 29325912 TI - Impact of Childhood Vaccine Discussion Format Over Time on Immunization Status. AB - OBJECTIVE: Presumptive formats to initiate childhood vaccine discussions (eg, "Well, we have to do some shots") have been associated with increased vaccine acceptance after one visit compared to participatory formats (eg, "How do you feel about vaccines?"). We characterize discussion format patterns over time and the impact of their repeated use on vaccine acceptance. METHODS: We conducted a longitudinal prospective cohort study of children of vaccine-hesitant parents enrolled in a Seattle-based integrated health system. After the child's 2-, 4-, and 6-month visits, parents reported the format their child's provider used to begin the vaccine discussion (presumptive, participatory, or other). Our outcome was the percentage of days underimmunized of the child at 8 months old for 6 recommended vaccines. We used linear regression and generalized estimating equations to test the association of discussion format and immunization status. RESULTS: We enrolled 73 parent-child dyads and obtained data from 82%, 73%, and 53% after the 2-, 4-, and 6-month visits, respectively. Overall, 65% of parents received presumptive formats at >=1 visit and 42% received participatory formats at >=1 visit. Parental receipt of presumptive formats at 1 and >=2 visits (vs no receipt) was associated with significantly less underimmunization of the child, while receipt of participatory formats at >=2 visits was associated with significantly more underimmunization. Visit-specific use of participatory (vs presumptive) formats was associated with a child being 10.1% (95% confidence interval, 0.3, 19.8; P = .04) more days underimmunized (amounting to, on average, 98 more days underimmunized for all 6 vaccines combined). CONCLUSIONS: Presumptive (vs participatory) discussion formats are associated with increased immunization. PMID- 29325913 TI - Efficacy of a Web-Based Oral Case Presentation Instruction Module: Multicenter Randomized Controlled Trial. AB - OBJECTIVE: Effective self-directed educational tools are invaluable. Our objective was to determine whether a self-directed, web-based oral case presentation module would improve medical students' oral case presentations compared to usual curriculum, and with similar efficacy as structured oral presentation faculty feedback sessions. METHODS: We conducted a pragmatic multicenter cluster randomized controlled trial among medical students rotating in pediatric clerkships at 7 US medical schools. In the clerkship's first 14 days, subjects were instructed to complete an online Computer-Assisted Learning in Pediatrics Program (CLIPP) oral case presentation module, an in-person faculty led case presentation feedback session, or neither (control). At the clerkship's end, evaluators blinded to intervention status rated the quality of students' oral case presentations on a 10-point scale. We conducted intention-to-treat multivariable analyses clustered on clerkship block. RESULTS: Study participants included 256 CLIPP (32.5%), 263 feedback (33.3%), and 270 control (34.2%) subjects. Only 51.1% of CLIPP subjects completed the assigned presentation module, while 98.5% of feedback subjects participated in presentation feedback sessions. Compared to controls, oral presentation quality was significantly higher in the feedback group (adjusted difference in mean quality, 0.28; 95% confidence interval, 0.08, 0.49) and trended toward being significantly higher in the CLIPP group (0.19; 95% confidence interval, -0.006, 0.38). The quality of presentations in the CLIPP and feedback groups was not significantly different ( 0.10; 95% confidence interval, -0.31, 0.11). CONCLUSIONS: The quality of oral case presentations delivered by students randomized to complete the CLIPP module did not differ from faculty-led presentation feedback sessions and was not statistically superior to control. PMID- 29325914 TI - Micro-cultural customization of organ donation propagation messages. AB - OBJECTIVE: Organ transplantation is plagued by limited availability of organs. This study investigated the effect of messages promoting organ donation which were customized according to the language-defined micro-cultures in Switzerland. METHODS: Community-, informative-, and emotional-oriented messages were carried by conventional flyers. A 3 * 3 between-subjects experiment was conducted with short- and long-term willingness to donate, long-term signing of organ donation card and long-term interpersonal communication on organ donation as outcome variables. RESULTS: The culturally customized interventions appeared to have no immediate effect and consequently no differential effect on willingness to donate organs and on signing a donor card. Among the Swiss Germans, of the three messages, the community-oriented one instigated less interpersonal communication. CONCLUSION: Findings are consistent with a mechanism in which the message does not have an immediate effect on willingness to donate organs but motivates further thought and related behaviors that lead to higher commitment and later increased willingness to donate. PRACTICE IMPLICATIONS: Targeting not only the message but also the objective that drives the messages must be considered. Campaigns should include elements that build on the unfolding commitment process to promote the follow-up actions that lead to greater willingness. PMID- 29325915 TI - In vivo nonspecific immunomodulatory and antispasmodic effects of common purslane (Portulaca oleracea Linn.) leaf extracts in ICR mice. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Portulaca oleracea (common purslane) is used in traditional medicine to cure various illnesses. However, its immune-protective properties and antispasmodic effects still need more pharmacological data if the plant will be utilized in herbal and drug formulations. Therefore, the present study determined the capacity of this plant species to modulate nonspecific immune responses and to confirm its antispasmodic activity in vivo in ICR mice. MATERIALS AND METHODS: Phagocytic activity of peritoneal macrophage, splenic lymphocyte proliferation and plasma lysozyme levels were measured in mice that were immunosuppressed using cyclophosphamide and treated with the ethyl acetate extract of Portulaca oleracea. In addition, the charcoal meal transit test was used to measure intestinal motility using ethanolic (EtOH), hexane (HEX), and ethyl acetate (EA) solvent extracts. Phytochemical analysis was undertaken and DPPH scavenging properties of the three solvent extracts were also determined. RESULTS: The EA extract of P. oleracea exhibited immunoactivity through significant increase in phagocytosis and higher proliferative response in splenic lymphocytes. Plasma lysozyme level was also higher in EA-treated mice at high dose but this was not statistically significant. Decreased intestinal motility was also exhibited in mice treated with the three leaf solvent extracts compared to the negative control and the acetylcholine-treated group. The antispasmodic activity of the solvent extracts was comparable to that of the atropine-treated group. Phytochemical analysis showed the presence of tannins in EA extract in addition to alkaloids and steroids. The EtOH and HEX extracts contain alkaloids, steroids and terpenoids. DPPH scavenging activity was highest in the EA extract. CONCLUSIONS: The present study showed that the EA extract of P. oleracea leaves ameliorated the immunosuppressive action of cyclophosphamide in mice. The results also indicated that the three solvent extracts of the plant decreased smooth muscle spasms in mice ileum. However, further experiments are warranted to further isolate the plant's immunoactive component. Also, the mechanisms involved in the immunoactivity and antispasmodic properties of P. oleracea deserve full elucidation. PMID- 29325916 TI - Proanthocyanidin polymeric tannins from Stryphnodendron adstringens are effective against Candida spp. isolates and for vaginal candidiasis treatment. AB - ETHNOPHARMACOLOGICAL RELEVANCE: The stem bark of Stryphnodendron adstringens (Mart.) Coville is popularly used as anti-inflammatory, astringent and in the treatment of wounds and vaginal infections. Several pharmacological activities have been scientifically proven by in vitro and in vivo experimental assays for antibacterial, antiviral, antiprotozoan, anti-inflammatory and antioxidant. AIM OF THE STUDY: We investigated whether proanthocyanidin polymeric tannins from the Stryphnodendron adstringens stem bark with antifungal activity against Candida albicans in vitro are also active against planktonic and biofilm cells of Candida non-albicans (CNA, including fluconazole-resistant isolates) and are capable of controlling Candida vaginitis in vivo. MATERIALS AND METHODS: A total of 46 clinical isolates and 5 reference Candida spp. strains were used in this study. The antifungal effects in vitro of tannins (F2 and sub-fraction F2.4) from S. adstringens stem bark were evaluated using a broth microdilution assay (for planktonic yeasts and biofilm dispersion cells) or by XTT assay (for biofilm sessile cells). For in vivo antifungal activity analysis, mice with vaginal infection by C. albicans or C. glabrata were treated with a topical gel containing F2 (alone or combined with oral fluconazole), and the vaginal histopathology and fungal burden (by CFU counts from vaginal homogenates) were analyzed. RESULTS: F2 and F2.4 inhibited the proliferation of planktonic cells of Candida spp., especially that of fluconazole- and/or amphotericin B-resistant isolates. F2 and F2.4 also inhibited the proliferation of Candida biofilm dispersion cells. Moreover, a gel containing F2 efficiently controlled vaginal infection by C. albicans and C. glabrata in mice, with no noticeable toxicity to vaginal tissue. CONCLUSIONS: Our data show that proanthocyanidin polymeric tannins obtained from S. adstringens have antifungal activity in vitro against C. albicans and CNA (including fluconazole-resistant isolates) and presented efficacy in the control of candidiasis in murine model. Therefore, these tannins have potential use in the treatment of vaginal candidiasis, representing interesting alternatives to current antifungals. PMID- 29325917 TI - Increase in insulin sensitivity by the association of chicoric acid and chlorogenic acid contained in a natural chicoric acid extract (NCRAE) of chicory (Cichorium intybus L.) for an antidiabetic effect. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Chicory (Cichorium intybus L.) is an indigenous vegetable widely cultivated in Europe, America and Asia. In ancient times, the leaves, flowers, seeds, and roots have been used as a wealth of health benefits including its tonic effects, the ability to ease digestive problems and to detoxify liver. In Indian traditional therapy, chicory was known to possess antidiabetic effect. In the traditional medicine of Bulgaria and Italy, chicory was used as hypoglycemic decoctions. AIMS OF THE STUDIES: We wanted to obtain the complete chemical composition of the natural chicoric acid extract (NCRAE), a chicory root extract rich in chicoric acid, which previously showed its glucose tolerance effect in normal rats. To investigate if the whole NCRAE is required to be effective, we performed a comparative in vivo experiment on STZ diabetic rats treated either with NCRAE or a mixture composed of the two major compounds of NCRAE. MATERIALS AND METHODS: LC-MS method has been used to analyze the exhaustive composition of NCRAE: we have determined that chicoric acid and chlorogenic acid represented 83.8% of NCRAE. So, we have prepared a solution mixture of chicoric acid and chlorogenic acid named SCCAM, in order to compare in vivo the antidiabetic effects of this last and NCRAE in streptozotocin diabetic rats. In vitro experiments were performed on L6 cell line both for glucose uptake and for the protective effect against H2O2 oxidative stress. Also, we have evaluated DPPH and ORAC (Oxygen Radical Absorbance Capacity) antioxidative capacities of the two compositions. RESULTS: The LC-MS analysis confirmed the high abundance of chicoric acid (64.2%) in NCRAE and a second part of NCRAE is composed of caffeoylquinic acids (CQAs) at 19.6% with among them the chlorogenic acid. This result has permitted us to prepare a mixture of synthetic L-chicoric acid (70%) and synthetic chlorogenic acid (30%): the solution is designated SCCAM. Our results showed that both NCRAE and SCCAM are able to improve a glucose tolerance in STZ diabetic rats after a subchronic administration of seven days. Alone NCRAE allows to significantly decrease the basal hyperglycemia after six days of treatment. To explain these difference of effects between NCRAE and SCCAM, we have compared their in vitro effects on the L6 muscle cell line both for the insulin sensitizing effect and for their protective action in pretreatment against H2O2. We have also compared their antioxidant capacities. In conclusion, we demonstrated that NCRAE, a natural extract of chicory (Cichorium intybus) rich in CRA and CQAs improves glucose tolerance and reduces the basal hyperglycemia in STZ diabetic rats. PMID- 29325919 TI - Patients with Cerebral Stroke Have an Increased Risk of Gastroesophageal Reflux Disease: A Population-Based Cohort Study. AB - BACKGROUND: Medical complications following stroke often result in significant morbidity. This study was designed to investigate the prevalence and risk of gastroesophageal reflux disease (GERD) between patients with stroke and those without stroke in Taiwan. METHODS AND RESULTS: This retrospective cohort study was conducted using the Taiwan National Health Insurance Research Database. The study included 18,412 patients newly diagnosed as having stroke during 2000-2006 and 18,412 patients without stroke frequency-matched by sex, age, and index year. All patients were followed from the index date to December 31, 2011. The Cox proportional hazards regression model was used to estimate the GERD risk. The GERD risk was approximately 1.51-times higher in the stroke group than in the nonstroke group, after adjustment for age, sex, and the cumulative incidence of some comorbidities. GERD was positively associated with stroke; the male sex (adjusted hazard ratio [HR] = 1.31); an age of 65 years or older (adjusted HR = 1.11); hyperlipidemia (adjusted HR = 1.14); ischemic heart disease (adjusted HR = 1.27); renal disease (adjusted HR = 1.45); and use of aspirin (adjusted HR = 2.34), clopidogrel (adjusted HR = 1.41), and dipyridamole (adjusted HR = 1.30). CONCLUSIONS: This study indicates a significantly higher GERD risk in patients with stroke than in the nonstroke group. In clinical practice, neurologists should focus on the risk of GERD symptoms. PMID- 29325918 TI - Bioactive fraction of Rhodiola algida against chronic hypoxia-induced pulmonary arterial hypertension and its anti-proliferation mechanism in rats. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Rhodiola algida var. tangutica (Maxim.) S.H. Fu is a perennial plant of the Crassulaceae family that grows in the mountainous regions of Asia. The rhizome and roots of this plant have been long used as Tibetan folk medicine for preventing high latitude sickness. AIM OF THE STUDY: The aim of this study was to determine the effect of bioactive fraction from R. algida (ACRT) on chronic hypoxia-induced pulmonary arterial hypertension (HPAH) and to understand the possible mechanism of its pharmacodynamic actions. MATERIALS AND METHODS: Male Sprague-Dawley rats were separated into five groups: control group, hypoxia group, and hypoxia+ACRT groups (62.5, 125, and 250mg/kg/day of ACRT). The chronic hypoxic environment was created in a hypobaric chamber by adjusting the inner pressure and oxygen content for 4 weeks. After 4 weeks, major physiological parameters of pulmonary arterial hypertension such as mPAP, right ventricle index (RV/LV+S, RVHI), hematocrit (Hct) levels and the medial vessel thickness (wt%) were measured. Protein and mRNA expression levels of proliferating cell nuclear antigen (PCNA), cyclin D1, p27Kip1 and cyclin dependent kinase 4 (CDK4)) were detected by western blotting and real time PCR respectively. Chemical profile of ACRT was revealed by ultra performance liquid chromatography coupled with quadrupole time of flight mass spectrometry (UHPLC-Q TOF-MS/MS). RESULTS: The results showed that a successful HPAH rat model was established in a hypobaric chamber for 4 weeks, as indicated by the significant increase in mPAP, RV/LV+S, RV/BW and wt%. Compared with the normal group, administration of ACRT reduced mPAP, right ventricular hypertrophy, pulmonary small artery wall thickness, and damage in ultrastructure induced by hypoxia in rats. PCNA, cyclin D1, and CDK4 expression was reduced (p<0.05), and p27Kip1 expression increased (p<0.05) in hypoxia+ACRT groups compared to hypoxia. 38 constituents in bioactive fraction were identified by UHPLC-Q-TOF-MS/MS. CONCLUSION: Our results suggest that ACRT could alleviate chronic hypoxia-induced pulmonary arterial hypertension. And its anti-proliferation mechanism in rats based on decreasing PCNA, cyclin D1, CDK4 expression level and inhibiting p27Kip1 degradation. PMID- 29325920 TI - Twenty-Four Syndrome: An Untold Presentation of Pontine Hemorrhage. AB - Pontine hemorrhages are relatively uncommon. Various atypical manifestations of pontine stroke like eight-and-a-half syndrome, fifteen-and-a-half syndrome, and sixteen syndrome have been described in the past. We came across a case of pontine bleed that presented with bilateral facial palsy, bilateral horizontal gaze palsy, and contralateral sensorineural hearing loss accounting to the hitherto not described "twenty-four syndrome" with Horner's syndrome and left hemiparesis. PMID- 29325922 TI - The Cost-Effectiveness of Using PARO, a Therapeutic Robotic Seal, to Reduce Agitation and Medication Use in Dementia: Findings from a Cluster-Randomized Controlled Trial. AB - OBJECTIVES: To examine the within-trial costs and cost-effectiveness of using PARO, compared with a plush toy and usual care, for reducing agitation and medication use in people with dementia in long-term care. DESIGN: An economic evaluation, nested within a cluster-randomized controlled trial. SETTING: Twenty eight facilities in South-East Queensland, Australia. PARTICIPANTS: A total of 415 residents, all aged 60 years or older, with documented diagnoses of dementia. INTERVENTION: Facilities were randomized to 1 of 3 groups: PARO (individual, nonfacilitated 15-minute sessions, 3 afternoons per week for 10 weeks); plush toy (as per PARO but with artificial intelligence disabled); and usual care. MEASUREMENTS: The incremental cost per Cohen-Mansfield Agitation Inventory-Short Form (CMAI-SF) point averted from a provider's perspective. Australian New Zealand Clinical Trials Registry (BLINDED FOR REVIEW). RESULTS: For the within trial costs, the PARO group was $50.47 more expensive per resident compared with usual care, whereas the plush toy group was $37.26 more expensive than usual care. There were no statistically significant between-group differences in agitation levels after the 10-week intervention. The point estimates of the incremental cost-effectiveness ratios were $13.01 for PARO and $12.85 for plush toy per CMAI-SF point averted relative to usual care. CONCLUSION: The plush toy used in this study offered marginally greater value for money than PARO in improving agitation. However, these costs are much lower than values estimated for psychosocial group activities and sensory interventions, suggesting that both a plush toy and the PARO are cost-effective psychosocial treatment options for agitation. PMID- 29325923 TI - Ethical and Practical Ways in Which MOELI (Medical Orders for End-of-Life Intervention) Advance the Physician Orders for Life-Sustaining Treatment (POLST) Program. PMID- 29325921 TI - Energy Flux: The Link between Multitrophic Biodiversity and Ecosystem Functioning. AB - Relating biodiversity to ecosystem functioning in natural communities has become a paramount challenge as links between trophic complexity and multiple ecosystem functions become increasingly apparent. Yet, there is still no generalised approach to address such complexity in biodiversity-ecosystem functioning (BEF) studies. Energy flux dynamics in ecological networks provide the theoretical underpinning of multitrophic BEF relationships. Accordingly, we propose the quantification of energy fluxes in food webs as a powerful, universal tool for understanding ecosystem functioning in multitrophic systems spanning different ecological scales. Although the concept of energy flux in food webs is not novel, its application to BEF research remains virtually untapped, providing a framework to foster new discoveries into the determinants of ecosystem functioning in complex systems. PMID- 29325924 TI - Prediction of the Hydrogen Peroxide-Induced Methionine Oxidation Propensity in Monoclonal Antibodies. AB - Methionine oxidation in therapeutic antibodies can impact the product's stability, clinical efficacy, and safety and hence it is desirable to address the methionine oxidation liability during antibody discovery and development phase. Although the current experimental approaches can identify the oxidation-labile methionine residues, their application is limited mostly to the development phase. We demonstrate an in silico method that can be used to predict oxidation labile residues based solely on the antibody sequence and structure information. Since antibody sequence information is available in the discovery phase, the in silico method can be applied very early on to identify the oxidation-labile methionine residues and subsequently address the oxidation liability. We believe that the in silico method for methionine oxidation liability assessment can aid in antibody discovery and development phase to address the liability in a more rational way. PMID- 29325925 TI - Microfluidic Approaches for the Characterization of Therapeutic Proteins. AB - In the last decades, the pharmaceutical market has experienced an increase in the number of therapeutic proteins. The high activity and selectivity of these macromolecules is often achieved at the expense of complex structures, which exhibit several biophysical properties that must be carefully controlled and optimized for the successful development of these drugs as well as for guaranteeing their quality and safety. This need has motivated the application of a variety of biophysical techniques to analyze properties of therapeutic proteins and protein solutions including interactions, aggregation, solubility, viscosity, and thermal stability. After briefly summarizing currently available experimental approaches, we highlight the emerging possibilities offered by advances in microfluidic technology for the analysis of therapeutic proteins during manufacturing and formulation. PMID- 29325926 TI - The study of the inhibitory effect of calcium oxalate monohydrate's crystallization by two medicinal and aromatic plants: Ammi visnaga and Punica granatum. AB - INTRODUCTION: Urinary lithiasis is a recurrent disease defined by the presence of calculi in the urinary tract. Most urinary calculi have as a major component calcium oxalate which occurs mainly in two crystalline forms: Calcium oxalate monohydrate (whewellite) and calcium oxalate dihydrate (weddellite). The target behind, this work is to study the inhibiting effect of the calcium oxalate's crystallization by the extract of the Ammi visnaga and the Punica granatum. METHODS: The inhibition of crystallization has been studied in vitro with both the absence and the presence of the different concentrations of the extracts of the two plants. This study consists in measurement, with the UV-Visible spectrophotometer, the temporal evolution of the optical density at lambda equal to 620nm corresponding to the formation of the crystals due to the mixing of metastable solutions of calcium and oxalate. The characterization of the crystals is carried out in parallel by both the Fourier transform infrared spectra (FT-IR) and the observation of the crystals with the help of an optical microscope. In this respect, the inhibition percentages were calculated from the turbidity slopes in the presence and absence of the extract. RESULTS: The results obtained were more effective, especially for Punica granatum with percentages of 97.8+/ 0.12 and 83.46+/-1.34% against nucleation and aggregation, respectively, the order of Ammi visnaga was as follow: 73.25+/-0.81 and 59.44+/-3.3%. Thus, all correlation coefficients are greater than 0.95 and all coefficients of variation are less than 10%. CONCLUSIONS: The prevention and treatment of urinary lithiasis and especially in the case of recurrence by plants remains an alternative choice for medical methods. This study justified the efficacy of the plants Ammi visnaga and in particular Punica granatum against the crystallization of calcium oxalate. LEVEL OF EVIDENCE: 3. PMID- 29325927 TI - Health care access and quality for persons with disability: Patient and provider recommendations. AB - BACKGROUND: Significant disparities in health care access and quality persist between persons with disabilities (PWD) and persons without disabilities (PWOD). Little research has examined recommendations of patients and providers to improve health care for PWD. OBJECTIVE: We sought to explore patient and health care provider recommendations to improve health care access and quality for PWD through focus groups in the physical world in a community center and in the virtual world in an online community. METHODS: In all, 17 PWD, 4 PWOD, and 6 health care providers participated in 1 of 5 focus groups. Focus groups were conducted in the virtual world in Second Life(r) with Virtual Ability, an online community, and in the physical world at Agape Community Center in Milwaukee, WI. Focus group data were analyzed using a grounded theory methodology. RESULTS: Themes that emerged in focus groups among PWD and PWOD as well as health care providers to improve health care access and quality for PWD were: promoting advocacy, increasing awareness and knowledge, improving communication, addressing assumptions, as well as modifying and creating policy. Many participants discussed political empowerment and engagement as central to health care reform. CONCLUSIONS: Both PWD and PWOD as well as health care providers identified common themes potentially important for improving health care for PWD. Patient and health care provider recommendations highlight a need for modification of current paradigms, practices, and approaches to improve the quality of health care provision for PWD. Participants emphasized the need for greater advocacy and political engagement. PMID- 29325929 TI - Post-Stroke Cognitive Impairment, Depression and Apathy: Untangling the Relationship. PMID- 29325928 TI - Limonoids and triterpenoid from fruit of Swietenia macrophylla. AB - Five new limonoids, swieteliacates A-E (1-5) and a tirucallane-type triterpenoid, swietesenin (6), together with four known compounds (7-10) were isolated from fruit of Swietenia macrophylla. Their structures were determined by spectroscopic analyses. The new compounds were tested in vitro for their cytotoxic effects against five human cancer cell lines. Compound 2 exhibited moderate cytotoxic activities against SW480 and HL-60 cancer cell lines with IC50 values of 30.6 and 32.9MUM, respectively. PMID- 29325931 TI - Corrigendum to "Dose-related ethanol intake, Cx43 and Nav1.5 remodeling: Exploring insights of altered ventricular conduction and QRS fragmentation in excessive alcohol users" [J. Mol. Cell. Cardiol. 114 (2018) 150-160]. PMID- 29325930 TI - Integrated study on comparative transcriptome and skeletal muscle function in aged rats. AB - The present study aimed to reveal aging-related changes in the skeletal muscle of SD rats by comparing transcriptome analysis, integrated with muscle physiological parameters. Ten rats aged 25 months were set as the old group (OG) and ten rats aged 6 months were set as the young group (YG). After 6 weeks of feeding, the body mass, grip strength, and gastrocnemius muscle mass were determined, and the differentially expressed genes were analyzed by transcriptome sequencing, followed by GO enrichment analysis and KEGG analysis. The results showed that the muscle index and the relative grip strength were lower in OG rats than YG rats. The expressions of AMPK, UCP3, IGF-1, several ion channel associated genes and collagen family genes were down-regulated in OG rats. MGMT, one of the strength determining genes and CHRNa1, a subunit of the acetylcholine receptor were up regulated in OG rats. The present results supply the global transcriptomic information involved in aging related skeletal muscle dysfunction in rats. The reduced expressions of AMPK, IGF-1, and CASK can explain the losses of muscle mass and function in the aged rats. In addition, the up-regulation of MGMT and CHRNa1 also contribute to muscle wasting and weakness during aging. PMID- 29325932 TI - Riboflavin attenuates myocardial injury via LSD1-mediated crosstalk between phospholipid metabolism and histone methylation in mice with experimental myocardial infarction. AB - The underlying mechanisms responsible for the cardioprotective effects of riboflavin remain elusive. Current study tested the hypothesis that riboflavin protects injured myocardium via epigenetic modification of LSD1. Here we showed that myocardial injury was attenuated and cardiac function was improved in riboflavin-treated mice with experimental myocardial infarction (MI), while these protective effects of riboflavin could be partly blocked by cotreatment with LSD1 inhibitor. Riboflavin also reduced apoptosis in hypoxic (1% oxygen) H9C2 cell lines. Results of ChIP-seq for H9C2 cells showed that riboflavin activated LSD1, as verified by decreased H3K4me2 levels of target genes. Subsequent LEGO bioinformatics analysis indicated that phospholipid metabolism genes Lpcat2 and Pld1 served as the potential target genes responsible for the LSD1 mediated protective effects. Overexpressions of Lpcat2 and Pld1 aggravated hypoxic injury in H9C2 cells, while these detrimental effects could be attenuated by overexpression of LSD1. We thus propose that riboflavin alleviates myocardial hypoxic/ischemic injury by activating LSD1 cellular activity and modulating the expression of phospholipid metabolism genes. LSD1-mediated crosstalk between phospholipid metabolism and histone methylation might thus be an important mechanism for the cardioprotective effects of riboflavin. PMID- 29325933 TI - Sestrin2 prevents age-related intolerance to post myocardial infarction via AMPK/PGC-1alpha pathway. AB - We have revealed that a novel stress-inducible protein, Sestrin2, declines in the heart with aging. Moreover, there is an interaction between Sestrin2 and energy sensor AMPK in the heart in response to ischemic stress. The objective of this study is to determine whether Sestrin2-AMPK complex modulates PGC-1alpha in the heart and protects the heart from ischemic insults. In order to characterize the role of cardiac Sestrin2-AMPK signaling cascade in aging, C57BL/6 wild type young mice (3-4months), aged mice (24-26months) and young Sestrin2 KO mice were subjected to left anterior descending coronary artery occlusion for in vivo regional ischemia. Intriguingly, ischemic AMPK activation was blunted in aged WT and young Sesn2 KO hearts as compared with young WT hearts. In addition, the AMPK downstream PGC-1alpha was down-regulated in the aged and Sestrin2 KO hearts during post myocardial infarction. To further determine the regulation of AMPK on mitochondrial functions in aging, the downstream of mitochondrial biogenesis PGC 1alpha transcriptional factor were measured. The results demonstrated that the PGC-1alpha downstream effectors TFAM and UCP2 were impaired in the aged and Sestrin2 KO post-MI hearts as compared to the young hearts. While the apoptotic flux markers such as AIF, Bax/Bcl-2 were up-regulated in both aged and Sestrin2 KO hearts versus young hearts. Furthermore, both Sestrin2 KO and aged hearts demonstrated more susceptible to ischemic insults as compared to young hearts. Additionally, the adeno-associated virus (AAV9)-Sestrin2 delivered to the aged hearts via a coronary delivery approach significantly rescued the ischemic tolerance of aged hearts. Taken together, the decreased Sestrin2 levels in aging lead to an impaired AMPK/PGC-1alpha signaling cascade and an increased sensitivity to ischemic insults. PMID- 29325934 TI - Direct perception vs inferential processes in reading an opponent's mind: The case of a goalkeeper facing a soccer penalty kick: Comment on "Seeing mental states: An experimental strategy for measuring the observability of other minds" by Cristina Becchio et al. PMID- 29325935 TI - Upgrading Gestalt psychology with variational neuroethology: The case of perceptual pleasures: Comment on "Answering Schrodinger's question: A free-energy formulation" by M.J. Desormeau Ramstead et al. PMID- 29325936 TI - Carotid Atherosclerotic Plaque Features in Patients with Acute Ischemic Stroke. AB - OBJECTIVE: To investigate the carotid atherosclerotic plaque features in patients with acute ischemic stroke. METHODS: A total of 288 patients meeting the included criteria were enrolled and divided into an ulcerated plaque group (n = 139) and a nonulcerated plaque group (n = 149). Patients in the ulcerated plaque group were further subdivided into <50% and >=50% stenosis groups. Carotid plaque component characteristics including luminal stenosis, carotid plaque volume, hypoechoic plaque volume, and hyperechoic plaque volume were analyzed by color Doppler ultrasound measurement. Associations between ulcerated plaque and carotid plaque features were also evaluated. The relationships among the levels of MMP-9, hs CRP, and carotid stenosis rate were detected by enzyme-linked immunosorbent assay. RESULTS: The plaque volume, hypoechoic plaque volume, and luminal stenosis in the ulcerated plaque group were higher than that of the nonulcerated plaque group (P < 0.05). Ulcerated plaque was positively associated with luminal stenosis, plaque volume, and hypoechoic plaque volume after adjusting for sex and age. The result remained similar after adjusting for age, sex, and carotid luminal stenosis. The levels of MMP-9 and hs-CRP in the ulcerated plaque group were significantly higher than those of the nonulcerated plaque group (P < 0.01). For the ulcerated plaque group, the higher the carotid stenosis rate, the higher the level of MMP-9 and hs-CRP. CONCLUSIONS: Higher carotid atherosclerosis plaque volume, hypoechoic plaque volume, and luminal carotid stenosis may be symptoms of ulcerated plaque. Increased MMP-9 and hs-CRP levels could be used as adjunctive therapies of carotid stenosis at the molecular level. PMID- 29325937 TI - Histopathologic Analysis of Tamoxifen on Epidural Fibrosis. AB - BACKGROUND: Epidural fibrosis is a challenging topic in spinal surgery. This phenomenon constitutes one of the main reasons behind postlaminectomy syndrome or failed back surgery syndrome, which leads to persistent back and leg pain in association with compression and/or stretching the nerve root or the dura. The exact mechanism of action in epidural fibrosis is complex and remains uncertain. Excessive deposition of collagen, fibronectin, and dermatan sulfate, known as the "extracellular matrix," and decrease of tissue cellularity results in epidural fibrosis. The most investigated and important actor in epidural fibrosis as well as in other forms of aberrant wound healing is presumed to be transforming growth factor-1beta formation. Tamoxifen (TAM), a synthetic nonsteroidal antiestrogen used in breast cancer, is also effective in inhibiting fibroblast proliferation via downregulation of transforming growth factor-1beta. METHODS: Twenty-four adult male rats were randomly divided into 3 groups. Laminectomy was the sole intervention in the control group. Spongostan was placed in the operation lodge after laminectomy in the second group. In the treatment group, TAM was administrated orally after laminectomy. Epidural fibrosis, dural thickness, inflammatory response, and arachnoidal involvement were evaluated and graded histopathologically. RESULTS: Epidural fibrosis, dural thickness, and inflammatory response in the subjects treated with TAM were significantly less than in the control and Spongostan group and the differences were statistically significant. Although arachnoidal involvement was observed in a subject in the TAM group, the differences between all groups weren't statistically significant. CONCLUSIONS: Tamoxifen reduced epidural fibrosis, dural thickness, and inflammatory response after laminectomy in rats. PMID- 29325938 TI - Coarctation of the Aorta Complicated with Intracranial Aneurysm: A Case Report and Literature Review. AB - BACKGROUND: Coarctation of the aorta (CoA) complicated with rupture and hemorrhage of intracranial aneurysms is not commonly seen in clinical practice. Here we report a middle-aged female patient who presented with acute severe headache. CASE DESCRIPTION: Head computed tomography (CT) demonstrated an extensive subarachnoid hemorrhage. Digital subtraction angiography demonstrated coarctation and occlusion of the proximal thoracic aorta and occlusion of the terminal aortic arch. Aortic-intracranial CT angiography (CTA) confirmed a CoA complicated with an anterior communicating artery aneurysm. Clipping of the anterior communicating artery aneurysm was performed via a left lateral orbital approach. Postoperative intracranial CTA showed complete clipping of the aneurysm. The patient was discharged postoperatively with good recovery. CONCLUSIONS: The pathophysiological mechanism of CoA complicated with intracranial aneurysm remains unclear, but attention should be given to the relationship between the 2 entities in clinical practice, and effective treatment should be provided according to specific conditions. PMID- 29325939 TI - Liponeurocytoma of the Cerebellopontine Angle. AB - BACKGROUND: Liponeurocytoma is a very rare tumor classified as grade II (neuronal and mixed neuronal-glial tumors) according to 2016 World Health Organization classification of tumors of the central nervous system. The median age at detection is 50 years, and the most frequent location is the posterior cranial fossa, especially within the cerebellar hemispheres; liponeurocytomas arising in the cerebellopontine angle (CPA) are exceptional. CASE DESCRIPTION: Here we report the clinical, radiological, and pathological characteristics of a CPA liponeurocytoma in a 35-year-old woman, as well as a review of the literature. This unusual cisternal location raises the issue of the differential imaging diagnosis with much more common CPA tumors (e.g., meningiomas, vestibular schwannomas, ependymomas, epidermoid cyst, hemangioblastomas, medulloblastomas). CONCLUSION: To the best of our knowledge, 59 cases of cerebellar liponeurocytomas have been reported to date, which include only 6 cases of CPA liponeurocytomas. Treatment relies on total removal whenever possible, with an excellent prognosis, but a high MIB-1 index (>10%) and/or incomplete tumor resection are the main adverse prognostic factors. PMID- 29325940 TI - Clinical Features, Treatment, and Prognostic Factors of 56 Intracranial and Intraspinal Clear Cell Meningiomas. AB - OBJECTIVE: Intracranial and intraspinal clear cell meningiomas (CCMs) are rarely reported because of their extremely low incidence, and the current understanding of CCM is poor. The purpose of this study was to analyze the incidence and the clinical, radiologic, pathologic, and prognostic features of intracranial and intraspinal CCMs. METHODS: Among 14,310 cases of intracranial and intraspinal meningiomas that were surgically treated between 2006 and 2016 at Beijing Tian Tan Hospital, 56 were chosen for analysis and retrospectively reviewed. To determine which parameters were associated with longer progression-free survival (PFS) and overall survival (OS), statistical analysis was performed. RESULTS: CCMs accounted for approximately 0.39% of all intracranial and intraspinal meningiomas. Patients with CCM had a mean age of 32.3 years and there was a female predilection (20 males and 36 females). Gross total resection was achieved in 35 cases, and subtotal resection was achieved in 21 cases. All patients were followed up for 10-206 months after surgery. Twenty-six patients experienced tumor recurrence, and the median PFS was 48.0 months. The 1-year, 3-year, and 5 year PFS was 87.5%, 59.8%, and 41.8%, respectively. Twelve patients died of tumor recurrence, and the median OS was not available. The 1-year, 3-year, and 5-year OS was 98.2%, 91.3%, and 65.8%, respectively. Univariate analysis showed that total tumor removal was significantly associated with a better prognosis. Multivariate analysis confirmed only Simpson grade III and IV resection as an independent risk factor for shorter PFS. Radiotherapy mildly improved PFS after both gross total resection and subtotal resection, showing no significant difference because of the small sample size and short follow-up duration. CONCLUSIONS: CCM is a rare subtype of World Health Organization grade II meningioma. CCM typically involves young patients and shows a female predilection and high recurrence rate. When possible, total resection is the primary and most suitable treatment for CCM. For patients with primary tumors, radiotherapy is recommended after the initial operation regardless of the extent of resection. For patients with disease recurrence, secondary surgery combined with radiotherapy might serve as an effective treatment. PMID- 29325942 TI - Perineural Spread of Melanoma to the Brachial Plexus: Identifying the Anatomic Pathway(s). AB - BACKGROUND: Perineural spread of melanoma is a well-known mechanism of metastasis in cases involving cranial nerves. Brachial plexus involvement is rare, and the pathway is unknown. METHODS: A retrospective review of the Mayo Clinic database was performed to identify patients with a history of melanoma and brachial plexus compromise treated between 1994 and 2017. Inclusion criteria were a history of melanoma, a clinical diagnosis of brachial plexopathy, radiologic features consistent with perineural spread, and biopsy of melanoma within nerves. RESULTS: We identified 42 patients (24 men and 18 women; median age, 61 years; range, 37 84 years) with a history of melanoma and brachial plexopathy. On a review of clinical information, 2 cases met our inclusion criteria. Both patients presented with progressive brachial plexopathy, and imaging studies revealed features consistent with perineural spread. In 40 excluded patients, brachial plexopathy was caused by metastasis to axillary lymph nodes (n = 11), trauma (n = 8), post surgical sequelae (n = 7), tumors other than melanoma (n = 5), inflammation (n = 5), radiation (n = 2), a combination of radiation and postsurgical changes (n = 1), and radiculopathy (n = 1). CONCLUSIONS: The 2 patients identified had similar clinical and radiologic features. We believe that there is a pattern of perineural spread to the brachial plexus through the cervical plexus. A literature review identified several recently published cases demonstrating an analogous mechanism of melanoma spread involving upper cervical nerves, supporting our proposed pathway. PMID- 29325941 TI - Toward Shorter Hospitalization After Endoscopic Transsphenoidal Pituitary Surgery: Day-by-Day Analysis of Early Postoperative Complications and Interventions. AB - BACKGROUND: It is unclear which patients have the greatest risk of developing complications in the first days after endoscopic transsphenoidal pituitary surgery (ETS) and how long patients should stay hospitalized after surgery. The objective of this study is to identify which patients are at risk for early postoperative medical and surgical reinterventions to optimize the length of hospitalization. METHODS: The medical records of 146 patients who underwent ETS for a pituitary adenoma between January 2013 and July 2016 were reviewed retrospectively. Data were collected on baseline patient-related characteristics, characteristics of the pituitary adenoma, perioperative complications and interventions, and postoperative outcomes. Patients who underwent additional interventions on days 2, 3, and 4 after ETS were identified as cases, and patients who did not have any interventions after day 1 postoperatively were identified as controls. RESULTS: Diabetes mellitus (odds ratio [OR], 4.279; 95% confidence interval [CI], 1.149-15.933; P = 0.03), incomplete adenoma resection (OR, 2.840; 95% CI, 1.228-6.568; P = 0.02) and increased morning sodium concentration on day 2 after surgery (OR, 5.211; 95% CI, 2.158-12.579; P <0.001) were associated with reinterventions. Patients without interventions on day 1 or 2 had only an 18.6% chance of a reintervention (OR, 0.201; 95% CI, 0.095-0.424). CONCLUSIONS: Patients with diabetes mellitus, incomplete adenoma resection, and increased morning sodium concentration on day 2 after surgery have an increased chance on reinterventions. In addition, patients without any interventions on day 1 and 2 are at low risk for later reinterventions. These patients could be suitable candidates for early hospital discharge. PMID- 29325943 TI - Neurosurgical Care: Availability and Access in Low-Income and Middle-Income Countries. AB - BACKGROUND: An estimated 5 billion people worldwide lack access to basic surgical care. In particular, the vast majority of low-income and middle-income countries (LMICs) currently struggle to provide adequate neurosurgical services. Significant barriers exist, including limited access to trained medical, nursing, and allied health staff; lack of equipment; and availability of services at reasonable distance and at reasonable cost to patients. An accurate assessment of current neurosurgical capacity in LIMCs is an essential first step in tackling this deficit. OBJECTIVE: To quantify the neurosurgical operational capacity and assess access to neurosurgical services in LMICs, by taking into account the location of workforce and services. METHODS: A total of 141 LMICs were contacted and asked to report the number of currently practicing neurosurgeons, access to computed tomographic and magnetic resonance imaging, and availability of neurosurgical equipment (microscope, endoscope, bipolar diathermy, high-speed neurosurgical drill). A proposed World Federation of Neurosurgeons classification was used to stratify cities based on the level of neurosurgical care that could be provided. The data were geocoded and analyzed in Redivis (Redivis Inc.) to assess the percentage of the population covered within a 2-hour travel time of a city offering differing levels of neurosurgical care. RESULTS: 68 countries provided complete data (response rate, 48.2%). Eleven countries reported having no practicing neurosurgeons. The average percentage of the population with access to neurosurgical services within a 2-hour window is 25.26% in sub-Saharan Africa, 62.3% in Latin America and the Caribbean, 29.64% in East Asia and the Pacific, 52.83% in South Asia, 79.65% in the Middle East and North Africa, and 93.3% in Eastern Europe and Central Asia. CONCLUSIONS: There are several challenges to the provision of adequate neurosurgical services in low-resource settings. This study used mapping techniques to determine the current global neurosurgical workforce capacity and distribution. We have used our findings to identify areas for improvement. These include increasing and improving neurosurgical training programs worldwide, recruiting students and young physicians into the field, and retaining existing neurosurgeons within their home countries. PMID- 29325944 TI - Hemorrhagic Cavernous Sinus Hemangioma with Sudden-Onset Abducens Palsy. AB - BACKGROUND: We report a rare case of hemorrhagic cavernous sinus hemangioma with sudden onset of abducens palsy. CASE DESCRIPTIONS: Sudden onset of diplopia occurred in a 49-year-old female. Head computed tomography findings revealed a high-density mass in the right cavernous sinus with protrusion to the sphenoid sinus. Endoscopic endonasal surgery was performed, though early recurrence was noted. A Gamma Knife surgical procedure was then performed to prevent early recurrence after histopathologic confirmation of cavernous sinus hemangioma. Thereafter, the tumor was controlled and abducens palsy disappeared. CONCLUSIONS: For treatment of cavernous sinus hemangioma, stereotactic radiosurgery should be considered as primary or adjuvant treatment in the very early phase after removal, to avoid early recurrence. PMID- 29325945 TI - Impact of Right-Sided Aneurysm, Rupture Status, and Size of Aneurysm on Perforator Infarction Following Microsurgical Clipping of Posterior Communicating Artery Aneurysms with a Distal Transsylvian Approach. AB - BACKGROUND: Posterior communicating artery (PCoA) aneurysms are among the most common aneurysms. Because blockage of the PCoA and perforators can cause adverse outcomes, occlusion of these arteries by surgical clipping should be avoided. The impact of factors on PCoA perforator infarction when using a distal transsylvian approach for PCoA aneurysms was examined. METHODS: A total of 183 patients underwent PCoA aneurysm clipping, excluding application of fenestrated clips. Patients were divided into 2 groups: patients with PCoA perforator infarction (infarction group) and patients without infarction (noninfarction group). Multiple factors were analyzed in the 2 groups. RESULTS: Twenty-two of the 183 patients (12.0%) showed perforator infarction, mainly on magnetic resonance imaging evaluation, resulting in permanent deficits in 2 patients (1.1%). The proportion of right-sided operations (86.4% vs. 53.4%; P = 0.005) and surgery for rupture (90.9% vs. 55.9%; P = 0.002) were significantly higher in the infarction group than in the noninfarction group. Aneurysms were significantly larger in the infarction group (8.4 +/- 3.8 mm) than in the noninfarction group (6.3 +/- 3.0 mm; P = 0.02). Ruptured status (odds ratio [OR], 7.35; P = 0.01), right side (OR, 5.19; P = 0.01), and aneurysm size (OR, 1.18; P = 0.02) remained independent predictors of perforator infarction on multivariate logistic regression analysis. CONCLUSIONS: Ruptured status, right side, and large PCoA aneurysm were independent predictors of PCoA perforator infarction. Symptoms due to PCoA perforating infarction were mostly transient and rarely affected outcomes. PMID- 29325946 TI - Skip Hemilaminectomy for Large, Multilevel Spinal Epidural Hematomas: Report of a Series of 11 Patients. AB - OBJECTIVE: We present our experience with a modification of the conventional techniques for the removal of large spinal epidural hematomas (SEHs), based on multilevel "skip hemilaminectomies." METHODS: Eleven patients with SEHs extending over 5 or more spinal segments were treated at our institution via a modified hemilaminectomy technique from 2008 to 2014. This procedure, that we called "skip hemilaminectomy," consists in performing consecutive, alternating, unilateral laminar decompressions at 2-3 levels, followed by sublaminar undercutting, ipsi- and contralateral flavectomy, plus hematoma removal. RESULTS: Complete clot evacuation and full neurologic recovery were always achieved. A short hospital stay, fast postoperative mobilization, a minimized need of analgesic drugs, and no complications were recorded. CONCLUSIONS: In our preliminary experience, skip hemilaminectomy seems to be as safe as more conventional techniques (laminectomy, extended hemilaminectomy) for the removal of large multilevel SEHs, granting full neurologic improvement, short surgical times-even for very large lesions-and no complications at follow-up. PMID- 29325947 TI - Usefulness of Oblique Coronal Computed Tomography and Magnetic Resonance Imaging in the Endoscopic Endonasal Approach to Treat Skull Base Lesions. AB - OBJECTIVE: This report examines the usefulness of the preoperative image to orient the surgeon in the sphenoid sinus during endoscopic endonasal transsphenoidal surgery (ETSS). METHODS: ETSS was performed in 100 cases of sellar lesion and used to classify the sphenoid sinus septum shape. Preoperative computed tomography and magnetic resonance imaging were performed for 2 types of coronal imaging: conventional and oblique. Expected sphenoid sinus septum shape was compared with those from ETSS to estimate concordance. The confirmation rate of anatomic landmarks in the sphenoid sinus by endoscopic observation was compared in various types of septum and the identification rate in oblique coronal imaging was also examined. RESULTS: The most common septum shape was single type (31%), followed by branched (26%), parallel (18%), none (12%), cross (9%), and bridge (4%) types. In oblique coronal images, preoperative evaluation and endoscopic findings were consistent in 93%-100% of cases. However, with conventional coronal images, the concordance rate was 22.2%-83.9%, and in the none, branched, and cross types, the concordance rate was significantly lower than that for oblique coronal images. Although confirmation of the midline through estimation of landmarks by endoscopic observation was difficult in 33 cases, preoperative computed tomography and magnetic resonance imaging showed landmarks in all cases and oblique coronal images best indicated the midline. CONCLUSIONS: Use of oblique coronal images in addition to conventional images provided good orientation of anatomic structures in the sphenoid sinus. The combination of preoperative imaging and endoscopic observation could allow safer surgery in ETSS. PMID- 29325948 TI - Spinal Metastasis Resulting from Atypical Thymic Carcinoid: A Case Report. AB - BACKGROUND: Thymic carcinoid with spinal metastasis is an extremely rare entity. Clinically, the tumor presents either by its endocrine manifestations or by mechanical compression of surrounding structures. However, no previously published case studies have reported neck pain and neurologic deficit in the initial presentation of an atypical thymic carcinoid. CASE DESCRIPTION: A 56-year old man, a nonsmoker, presented with a 12-month history of intermittent neck pain and a 1-month history of progressive numbness and weakness of the right upper limb. Cervical MRI showed multiple abnormal signals and C2 soft-tissue mass intruding into the vertebral canal. Cervical CT scan showed multiple bone lesions. The diagnosis of thymic carcinoid was obtained by preoperative lymph node biopsy. The patient underwent cervical laminectomy and occipitocervical fixation. Significant alleviation of pain and neurologic improvement were achieved. The postoperative pathological examination confirmed the diagnosis of thymic carcinoid. CONCLUSIONS: Neck pain and neurologic deficit could be the first presentation of thymic carcinoid with spinal metastasis. Palliative surgery is an effective method to improve quality of life in patients with thymic carcinoid with spinal metastasis. PMID- 29325949 TI - Comparison of MED and PELD in the Treatment of Adolescent Lumbar Disc Herniation: A 5-Year Retrospective Follow-Up. AB - OBJECTIVE: To compare the efficacy and safety of minimally endoscopic discectomy (MED) and percutaneous endoscopic lumbar discectomy (PELD) in the treatment of adolescent lumbar disc herniation (ALDH). METHODS: We retrospectively collected data from 30 patients with ALDH who underwent MED and 48 patients with ALDH who underwent PELD at our hospital between January 2010 and January 2012. Baseline data included age, sex, symptom duration, and surgical segment. Perioperative data included duration of surgery duration, blood loss, and duration of postoperative hospitalization. The Oswestry Disability Index (ODI) and visual analog scale (VAS) for both the lower back and leg were recorded as surgical outcomes. All surgical outcomes were recorded before surgery, at 1 week after surgery, at 6 months after surgery, and at final follow-up. RESULTS: There were no significant differences in baseline data between the MED and PELD groups. Both groups showed improvements in ODI and VAS scores before surgery and at the final follow-up time point (P < 0.05); however, the MED group had a higher mean ODI score at 1 week (12.44 +/- 6.39 vs. 7.25 +/- 6.40; P = 0.02) and 6 months (9.33 +/- 7.43 vs. 3.97 +/- 7.64; P = 0.04) after surgery. In addition, mean VAS scores for lower back pain were higher in the MED group at 1 week (1.93 +/- 1.39 vs. 0.91 +/- 0.85; P = 0.01), 6 months (1.80 +/- 1.15 vs. 0.61 +/- 0.94; P = 0.00), and final follow-up (1.87 +/- 1.46 vs. 0.65 +/- 0.88; P = 0.00), as was mean VAS score for radicular pain at 1 week after surgery (1.48 +/- 0.76 vs. 0.74 +/- 0.81; P = 0.01). One patient in each group experienced recurrent lumbar disc herniation. No other complications were reported in either group. CONCLUSIONS: Both PELD and MED are effective and safe surgical techniques for the treatment of ALDH; however, compared with MED, PELD is more advantageous for lower back pain and provides more rapid resolution of radicular pain. PMID- 29325950 TI - A Novel Technique for Cervical Laminoplasty Fusion: Simultaneously Enhancing Stabilization and Decompression in Various Cervical Myelopathies: A Technical Note and Outcomes. AB - BACKGROUND: Cervical laminectomy has 2 major disadvantages: postlaminectomy adhesion of dural membrane and lack of a fusion bed. The objective of this study was to determine whether simultaneous cervical laminoplasty with fusion (CLPF) might overcome these unwanted outcomes. METHODS: Patients who underwent CLPF for treating cervical myelopathy with instability who were followed up for at least 12 months were enrolled. Preoperative and postoperative Neck Disability Index (NDI) and Japanese Orthopedic Association (JOA) scores before and after surgery, recovery rates (RRs), C2-C7 lordosis, and fusion success rates were evaluated. RESULTS: The study cohort comprised 50 patients (35 males and 15 females; mean age, 60.5 +/- 14.0 years) who underwent CLPF. The average duration of clinical follow-up was 24.6 +/- 16.1 months. Mean preoperative and postoperative NDI scores were 27.0 +/- 10.6 and 17.6 +/- 7.2, respectively (P = 0.004). Mean preoperative and postoperative JOA scores were 10.4 +/- 4.2 and 13.6 +/- 3.0, respectively (P = 0.001). The mean JOA RR was 49.8 +/- 42.2%. No significant changes in C2-7 lordosis were noted after surgery (preoperative, 7.0 +/- 8.0 degrees ; postoperative, 7.3 +/- 6.3 degrees ; P = 0.789). The fusion success rate was 96% (48 of 50 patients). Fusion mass areas at C5 level were significantly different between the opening side and the hinge side (opening side, 15.8 +/- 13.1 mm2; hinge side, 50.8 +/- 27.2 mm2; P < 0.001). There was no postoperative restenosis or epidural fibrosis. CONCLUSIONS: CLPF might be useful for canal decompression and a good fusion bed while avoiding postoperative epidural fibrosis. PMID- 29325951 TI - Shunt Nephritis: An Increasingly Unfamiliar Diagnosis. AB - BACKGROUND: Shunt nephritis is a rare, reversible immune-complex mediated complication of cerebrospinal fluid (CSF) shunt infection that can progress to end-stage renal disease and even death if diagnosis is delayed. CASE DESCRIPTION: The present case report details the manifestation and clinical course of shunt nephritis in a 50-year-old patient who presented with symptoms of nephrotic syndrome 30 years after ventriculojugular shunt placement. Diagnosis was delayed due to initial negative CSF and blood cultures, but a later CSF culture was positive for Propionibacterium acnes. After treatment with intravenous antibiotics and complete removal of shunt with subsequent replacement with a new ventriculoperitoneal shunt, the nephritic symptoms resolved, but the patient continued to have reduced kidney function consistent with stage IIIa chronic kidney disease. CONCLUSION: This case emphasizes the clinical importance of having a high index of suspicion in patients with a ventricular shunt who present with symptoms consistent with nephritis, even in the setting of negative cultures and delayed presentation. PMID- 29325952 TI - Endovascular Treatment of Intracranial Aneurysms Concomitant with Severe Adjacent Atherosclerotic Stenosis. AB - PURPOSE: To investigate the effect and safety of endovascular treatment of intracranial aneurysms concomitant with severe adjacent atherosclerotic stenosis. MATERIALS AND METHODS: Twenty-six patients with aneurysms and adjacent stenosis were prospectively enrolled. The characteristics of the aneurysm, parent artery, atherosclerotic stenosis and endovascular treatment methods were analyzed. RESULTS: All aneurysms were successfully embolized (100%), with stent-assisted coiling in 14 (53.8%) cases, coiling alone in 10 (38.5%), double microcatheter coiling in 1 (3.8%), and balloon-assisted coiling in the remaining 1 (3.8%). Immediately after embolization, complete occlusion was achieved in 10 cases (38.5%), nearly complete occlusion in 6 (23.1%) and non-complete occlusion in 10 (38.5%). Ten aneurysms were type I and were managed with coiling alone in 8 cases and stent-assisted coiling in the remaining 2 cases, with complete occlusion achieved in 6 cases (60%), nearly complete in 2 (20%), and noncomplete in the other 2 (20%). Sixteen aneurysms were type II and treated with stent-assisted coiling in 12 cases (75%), single coiling in 2 (12.5%), double microcatheters in 1 (6.3%), and balloon-assisted coiling in the remaining aneurysm (6.3%). Aneurysm occlusion was complete in 4 cases (25%), nearly complete in 4 (25%), and noncomplete in the other 8 (50%). Clinical follow-up of 2 months to 5 years (mean 26 +/- 11 months) demonstrated no rebleeding, with the modified Rankin scale score of 0-2 in 20 patients, 3 in 4, and 6 in the remaining 2. CONCLUSIONS: Intracranial aneurysms concomitant with severe adjacent atherosclerotic stenosis can be successfully treated endovascularly, and careful evaluation of the characteristics of the aneurysm, parent artery, stenosis and collateral circulation can help reducing complications. PMID- 29325953 TI - Physical Risk Factors of Hemorrhagic Complications Associated with Angio-Seal Closure Device Use in Neurointerventional Procedures. AB - BACKGROUND: Few studies have demonstrated detailed physical risk factors of hemorrhagic complications (HCs) associated with the Angio-Seal closure device. This retrospective study aimed to identify the risk factors of HC due to Angio Seal use. METHODS: Data from 143 cases that underwent neurointerventional procedures that involved puncturing the femoral artery and that used an Angio Seal to close the puncture site were reviewed. We divided these cases into HC and no HC groups and retrospectively compared age, sex, past medical and preference history, body mass index (BMI), femoral artery depth, dual antiplatelet therapy use, activated clotting time, general anesthesia use, sheath size, right femoral artery puncture, and treatment time. RESULTS: HC occurred in 7 cases, 2 of which were excluded because of technical failure. Accordingly, we examined physical risk factors in 5 cases (3.5%) in the HC group and in 136 cases (96.5%) in the no HC group. A low BMI and shallow femoral artery depth were significantly associated with HC, whereas the other factors were not. A receiver operating characteristic curve indicated that a BMI cut-off value of 20.98 and a femoral artery depth of 11.1 mm could achieve optimal diagnostic efficiency for predicting HC. CONCLUSIONS: Patients with a BMI <21 may require careful hemostasis monitoring, and it is better not to undergo arterial puncture site closure using Angio-Seal for those with a femoral artery depth <11.1 mm. PMID- 29325954 TI - Anterior Skull Base Tumor Resection by Transciliary Supraorbital Keyhole Craniotomy: A Single Institutional Experience. AB - BACKGROUND: The prognosis and recurrence rate after resection of an anterior skull base lesion via transciliary supraorbital keyhole craniotomy depend on residual tumor volume. The extent to which pathology and size of tumor influence the resection rate using this approach is unknown. METHODS: Sixty-two patients underwent a total of 64 operations using the supraorbital keyhole approach in this retrospective study. Meningioma was the most common tumor, followed by pituitary adenoma and craniopharyngioma. Age, sex, tumor volume, operative duration, blood loss, and complication rates were evaluated. Pre- and postoperative residual tumor volumes were measured using OsiriX software (medical image viewer system) based on magnetic resonance imaging. A 15-mL cut value divided the subjects into large versus small meningioma groups. RESULTS: The average resection rate for meningiomas was 95.2% compared with 83.9% for craniopharyngiomas and 53.2% for pituitary adenomas. The major complication rate (primarily blindness and hemiplegia) was 4.48% in all tumors. No operative related deaths occurred. There were no surgical revisions to traditional large craniotomies. No significant differences in age, sex, postoperative volumes, resection rates, or recurrence rates were noted between small and large meningioma groups. However, longer operative times and hospital stays, and greater blood loss occurred in the large meningioma group. CONCLUSIONS: Transciliary keyhole craniotomy is a safe and effective approach for anterior skull base tumors, especially meningiomas. Excellent resection results were achieved even in cases of large meningiomas. Although longer operative times, longer hospital stays, and greater blood loss occurred in larger compared with smaller meningioma cases, recurrence rates were similar. PMID- 29325955 TI - Endovascular Patch Embolization for Blood Blister-Like Aneurysms in Dorsal Segment of Internal Carotid Artery. AB - OBJECTIVE: Blood blister-like aneurysms (BBAs) in the dorsal segment of the internal carotid artery are fragile and difficult to treat, and the optimal treatment for BBAs is still controversial. We report clinical and angiographic results with procedural details for the treatment of BBA by using the endovascular patch embolization method. METHODS: We retrospectively reviewed patients who presented with subarachnoid hemorrhage caused by internal carotid artery-BBAs and were treated with the endovascular patch embolization method in our center from October 2011 to March 2015. Clinical records, angiographic findings, procedural details, and follow-up results are reported in this study. RESULTS: Eight patients were enrolled in this study. All patients were treated with the endovascular patch embolization method. The key points of this method are step-by-step stent deployment and swaying of the microcatheter to coil the aneurysm sac and the wedge-shaped space between the stent and parent artery and, thereby, in the aneurysm sac and parent artery around the aneurysm neck. When the stent is completely deployed, an endovascular patch is formed and anchored around the neck of the BBA. The procedure was successful in all cases. No acute complications developed in any case. No rerupture or recurrence of the BBA occurred during follow-up. One patient with Hunt-Hess V subarachnoid hemorrhage died of multiple organ failure 4 months post treatment. Another patient died of intracranial infection related to the ventricle-peritoneal shunt. The remaining 6 patients had good clinical outcomes (modified Rankin Scale score of zero). CONCLUSION: Endovascular patch embolization is an improvement on stent-assisted coil embolization, which could be successfully performed only with extensive skill and patience. Endovascular patch embolization could be an effective method in BBA treatment. However, its efficacy and safety should be verified in a larger patient cohort and long-term follow-up study. PMID- 29325956 TI - Rapid-Onset Thoracic Myelopathy due to an Epidural Sarcoid-Like Lesion in a Pediatric Patient. AB - BACKGROUND: Isolated intraspinal neurosarcoidosis is a rare clinical entity, with most reports describing intramedullary involvement in adults. CASE DESCRIPTION: We detail the case of a 9-year-old girl with rapid-onset compressive myelopathy secondary to a thoracic epidural lesion. Although pathologic diagnosis was challenging, a presumptive diagnosis of isolated extradural neurosarcoidosis was made in light of the patient's investigations and dramatic response to corticosteroids. CONCLUSIONS: Although less likely than neoplasia, rheumatologic processes such as inflammatory granulomatous disease warrant consideration in similar cases. PMID- 29325957 TI - Effect and Feasibility of Therapeutic Hypothermia in Patients with Hemorrhagic Stroke: A Systematic Review and Meta-Analysis. AB - INTRODUCTION: Therapeutic hypothermia (TH) has shown good results in experimental models of hemorrhagic stroke. The clinical application of TH, however, remains controversial, since reports regarding its therapeutic effect are inconsistent. METHODS: We conducted a systematic review based on Preferred Reporting Items for Systematic Reviews and Meta-analyses comparing TH with a control group in terms of mortality, poor outcome, delayed cerebral ischemia (DCI), and specific complications. The subgroup analyses were stratified by study type, country, mean age, hemorrhage type, cooling method, treatment duration, rewarming velocity, and follow-up time. RESULTS: Nine studies were included, most of which were of moderate quality. The overall effect demonstrated insignificant differences in mortality (risk ratio [RR] 0.78; 95% confidence interval [CI] 0.58-1.06; P = 0.11) and poor outcome rate (RR 0.89; 95% CI 0.70-1.12; P = 0.32) between TH and the control group. However, sensitivity analyses, after we omitted 1 study, achieved a statistically significant difference in poor outcome favoring TH. Moreover, in the subgroup analyses, the results derived from randomized studies revealed that TH significantly reduced poor outcomes (RR 0.40; 95% CI 0.22-0.74; P = 0.003). In addition, TH significantly reduced DCI compared with control (RR 0.61; 95% CI 0.40-0.93; P = 0.02). The incidence of specific complications (rebleeding, pneumonia, sepsis, arrhythmia, and hydrocephalus) between the 2 groups were comparable and did not reach significant difference. CONCLUSIONS: The overall effect showed TH did not significantly reduce mortality and poor outcomes but led to a decreased incidence of DCI. Compared with control, TH resulted in comparable incidences of specific complications. PMID- 29325958 TI - Novel Assessment of Cerebrospinal Fluid Dynamics by Time-Spatial Labeling Inversion Pulse Magnetic Resonance Imaging in Patients with Chiari Malformation Type I. AB - OBJECTIVE: We investigated cerebrospinal fluid (CSF) dynamics at the craniocervical junction (CCJ) using Time-SLIP magnetic resonance imaging to demonstrate the significance of ventral and dorsal combined CSF dynamics in assessing CSF flow disturbance in patients with Chiari malformation type I. METHODS: Fifteen examinations were performed in 9 cases of CM-I (3 female patients; mean age, 24.7 years; age range, 11-46 years) before or after craniocervical decompression. The longitudinal maximum movement of the caudal edge of tagged midsagittal CSF at the CCJ was measured as length of motion (LOM), and total on the ventral and dorsal sides was defined as total LOM. RESULTS: In 8 conditions, where it was concluded that no craniocervical decompression was necessary or where symptoms improved following craniocervical decompression based on the clinical symptoms, total LOM was 49.8 +/- 13.1 mm. In contrast, in the 7 cases where craniocervical decompression was mandatory, total LOM was 23.2 +/- 9.2 mm. Significant differences were identified between the 2 groups. Total LOM <35.0 mm resulted to indicate the insufficiency of CSF dynamics, because it corresponded to the necessity of craniocervical decompression based on patients' symptoms. CONCLUSIONS: Time-SLIP MRI enabled clinicians to use novel dynamic indices, such as CSF motions, in addition to the conventional findings acquired by MRI. In particular, it was essential to examine combined ventral and dorsal CSF dynamics in assessing CSF patency at the CCJ in patients with CM-I. PMID- 29325959 TI - Agreement Between Extent of Meningioma Resection Based on Surgical Simpson Grade and Based on Postoperative Magnetic Resonance Imaging Findings. AB - BACKGROUND: The surgical Simpson grade, introduced in 1957, is the standard measure for meningioma resection and prediction of recurrences. We used an magnetic resonance (MR)-based grading system for the radiologic extent of resection, and assessed agreement of the extent of resection between the surgical Simpson grade and the MR-based scale. METHODS: Patients were prospectively included during a 2-year period. Immediately after surgery, the surgeon determined the Simpson grade. MR imaging was performed within 72 hours and at 3 months after surgery. Scans were assessed by a neuroradiologist, blinded to the surgeon's grading. Intraclass correlation coefficient (ICC) and absolute agreement were used to evaluate agreement between both scales. RESULTS: Thirty five patients (41 tumors) were included. Absolute agreement was 76%, with an ICC of 0.613. At 3 months postoperatively, the ICC and absolute agreement were 0.682 and 78%. In 20% of cases, the extent of resection was less favorable on the early postoperative MR imaging than the surgeon's Simpson grade. CONCLUSIONS: Agreement for extent of meningioma resection between both scales was good in terms of the ICC. When the surgical Simpson grade is unclear, MR imaging at 3 months after surgery may be used as a baseline for further follow-up. In a substantial portion of cases, the extent of resection was less favorable on the early postoperative MR imaging than the surgeon's Simpson grade. The predictive value of the radiologic extent of resection for the risk of long-term recurrences is a subject for further research. PMID- 29325960 TI - Results of Biopsy-Proven Sellar Germ Cell Tumors: Nine Years' Experience in a Single Center. AB - BACKGROUND: The biopsy is recognized as the most accurate method to determine the histologic characterization of sellar germ cell tumors. It is difficult to evaluate the prognosis before histologic confirmation. OBJECTIVE: This study aimed to evaluate the independent prognostic risk factors of patients with sellar germ cell tumors (GCTs). METHODS: From January 2008 to December 2015, 61 patients who were histologically diagnosed as having sellar GCTs were followed up and were included in this retrospective study. RESULTS: Of 61 patients in this study, 40 (65.6%), 10 (16.4%), and 11 (18.0%) were diagnosed as having pure germinomas, germinomas with syncytiotrophoblastic giant cells and non-germinomatous GCTs (NGGCTs), respectively. The patients with pure germinomas had a significantly better overall survival time than did those with NGGCT (56.47 +/- 3.01 months vs. 43.09 +/- 10.58 months; P = 0.01). Multivariate analysis showed that the independent poor prognostic risk factors of patients with sellar GCTs were diameters >15 mm (odds ratio [OR], 7.40; 95% confidence interval [CI], 2.01 27.19), octamer-binding transcription positivity (OR, 5.97; 95% CI, 1.40-25.48), and NGGCT (OR, 11.88; 95% CI, 2.37-59.50), whereas the combination of chemotherapy and radiotherapy was associated with a better prognosis (OR, 0.15; 95% CI, 0.04-0.55). CONCLUSIONS: Diameter >15 mm, octamer-binding transcription positivity, or NGGCT was associated with a poorer prognosis for patients with sellar GCTs, whereas the combination of chemotherapy and radiotherapy was associated with a better prognosis. PMID- 29325961 TI - Abdominal Pseudocysts and Peritoneal Catheter Revisions: Surgical Long-Term Results in Pediatric Hydrocephalus. AB - OBJECTIVE: An abdominal pseudocyst (APC) is a distal catheter site-specific failure in patients treated with ventriculoperitoneal shunts. Few studies with more than 10 patients have been reported. The aim of this study was to analyze causes of peritoneal catheter revisions with special emphasis on revisions because of an APC. METHODS: Pediatric patients with first shunt operation between 1982 and 1992 were included, and time, cause, and modality of peritoneal catheter revision were determined retrospectively. RESULTS: One hundred thirty-eight patients were treated for hydrocephalus, and 112 patients received a peritoneal catheter during the follow-up. An APC was diagnosed in 14 (12.5%) patients, and 28 revisions were needed for its treatment. The rate of shunt infection in patients with APC was 50%, but bacterial examination of the pseudofluid culture revealed infection in only 3 patients. Age at first surgical procedure, type of first surgical procedure, and etiology of hydrocephalus were not associated with APC diagnosis. APC recurred in 4 patients. These patients had a catheter repositioning directly into the peritoneum as first surgical treatment. No recurrences were observed in patients with shunt externalization or replacement of the peritoneal catheter. CONCLUSIONS: An APC is a major long-term complication after ventriculoperitoneal shunt treatment. Although a sterile inflammatory response cannot be excluded completely, our results favor the hypothesis of low level shunt infection. In both cases, the surgical consequences are the same. An infected APC should be treated as a shunt infection. Uninfected patients can be treated with shunt externalization and replacement of only the peritoneal catheter. PMID- 29325963 TI - Surgical Anatomy of the Eustachian Tube for Endoscopic Transnasal Skull Base Surgery: A Cadaveric and Radiologic Study. AB - OBJECTIVE: The endoscopic endonasal approach to the anatomically complex lateral skull base presents technical challenges. The use of the eustachian tube as a landmark to identify the petrous internal carotid artery has recently been reported, and this study aims to define the anatomic relationship between the eustachian tube and its surrounding structures using cadaveric dissection and radiologic analysis. METHODS: To clarify the relationship of the eustachian tube with its surrounding structures, we performed endoscopic and microscopic dissection of 4 adult cadaveric heads and analyzed computed topography scans from 20 patients. RESULTS: The eustachian tube is divided into the osseous and cartilaginous parts. The cartilaginous part can be further subdivided into the posterolateral, middle, and anteromedial parts, based on its relationship to the skull base. The eustachian tube is closely related to the pterygoid process of the sphenoid bone, the foramen lacerum, and the petrosal apex and is directed away from the oblique sagittal plane almost parallel to the vidian canal at 12.2 degrees +/- 6.2 degrees (mean +/- standard deviation). The relationship between the course of the vidian canal and the eustachian tube can aid the estimation of the anatomic course of the horizontal segment of the petrous carotid artery. CONCLUSIONS: The eustachian tube is a useful landmark for predicting the course of the internal carotid artery when accessing the lateral skull base regions via an endonasal route. A profound understanding of the relationship between the eustachian tube and the surrounding skull base structures is important for endoscopic endonasal skull base surgeries. PMID- 29325962 TI - Systematic Review of Factors Influencing Surgical Performance: Practical Recommendations for Microsurgical Procedures in Neurosurgery. AB - BACKGROUND: Microneurosurgical techniques involve complex manual skills and hand eye coordination that require substantial training. Many factors affect microneurosurgical skills. The goal of this study was to use a systematic evidence-based approach to analyze the quality of evidence for intrinsic and extrinsic factors that influence microneurosurgical performance and to make weighted practical recommendations. METHODS: A literature search of factors that may affect microsurgical performance was conducted using PubMed and Embase. The criteria for inclusion were established in accordance with the PRISMA-P (Preferred Reporting Items for Systematic Review and Meta-Analysis Protocols) statement. RESULTS: Forty-eight studies were included in the analysis. Most of the studies used surgeons as participants. Most used endoscopic surgery simulators to assess skills, and only 12 studies focused on microsurgery. This review provides 18 practical recommendations based on a systematic literature analysis of the following 8 domains: 1) listening to music before and during microsurgery, 2) caffeine consumption, 3) beta-blocker use, 4) physical exercise, 5) sleep deprivation, 6) alcohol consumption before performing surgery, 7) duration of the operation, and 8) the ergonomic position of the surgeon. CONCLUSIONS: Despite the clear value of determining the effects of various factors on surgical performance, the available body of literature is limited, and it is not possible to determine standards for each surgical field. These recommendations may be used by neurosurgical trainees and practicing neurosurgeons to improve microsurgical performance and acquisition of microsurgical skills. Randomized studies assessing the factors that influence microsurgical performance are required. PMID- 29325965 TI - Genome-wide association mapping for seed protein and oil contents using a large panel of soybean accessions. AB - Soybean is globally cultivated primarily for its protein and oil. The protein and oil contents of the seeds are quantitatively inherited traits determined by the interaction of numerous genes. In order to gain a better understanding of the molecular foundation of soybean protein and oil content for the marker-assisted selection (MAS) of high quality traits, a population of 185 soybean germplasms was evaluated to identify the quantitative trait loci (QTLs) associated with the seed protein and oil contents. Using specific length amplified fragment sequencing (SLAF-seq) technology, a total of 12,072 single nucleotide polymorphisms (SNPs) with a minor allele frequency (MAF) >= 0.05 were detected across the 20 chromosomes (Chr), with a marker density of 78.7 kbp. A total of 31 SNPs located on 12 of the 20 soybean chromosomes were correlated with seed protein and oil content. Of the 31 SNPs that were associated with the two target traits, 31 beneficial alleles were identified. Two SNP markers, namely rs15774585 and rs15783346 on Chr 07, were determined to be related to seed oil content both in 2015 and 2016. Three SNP markers, rs53140888 on Chr 01, rs19485676 on Chr 13, and rs24787338 on Chr 20 were correlated with seed protein content both in 2015 and 2016. These beneficial alleles may potentially contribute towards the MAS of favorable soybean protein and oil characteristics. PMID- 29325964 TI - Spontaneous Repeated Disappearance and Recurrence of Multiple Spinal Intradural Arachnoid Cysts in a Child. AB - BACKGROUND: Spinal intradural arachnoid cysts are rare in the pediatric population. We present a rare case of intradural spinal arachnoid cysts that spontaneously and repeatedly disappeared and reoccurred. CASE DESCRIPTION: A 2 year-and-8-months-old boy presenting with lower extremity weakness was found to have spinal intradural arachnoid cysts in cervical and thoracolumbar regions at separate times. Although spontaneous disappearance of both lesions was observed, surgical treatment was finally performed for the symptomatic recurrent thoracolumbar lesion. CONCLUSIONS: To the best of our knowledge, this is the first report of spontaneously disappearing and recurring spinal arachnoid cysts. PMID- 29325966 TI - Role of Intraoperative Ultrasound to Extend the Application of Minimally Invasive Surgery for Treatment of Recurrent Gynecologic Cancer. AB - STUDY OBJECTIVE: To describe the potential role of intraoperative ultrasound (IOUS) in the detection and localization of recurrent disease in gynecologic cancer patients during minimally invasive surgery (MIS). DESIGN: A prospective cohort study (Canadian Task Force classification II-1). SETTING: A university hospital. PATIENTS: Fifty-one gynecologic cancer patients with isolated recurrent disease. INTERVENTIONS: IOUS during secondary cytoreductive surgery (SCS) by MIS. MEASUREMENTS AND MAIN RESULTS: From November 2015 to February 2017 51 gynecologic cancer patients with isolated recurrent disease and candidates for SCS were treated by MIS. Recurrent tumor was preoperatively assessed at clinical examination, transvaginal and transabdominal sonography, and radiologic evaluation in all women. Twelve of 51 women (23.5%) needed IOUS. Type of disease was ovarian in 5 women (42%), endometrial in 4 (33%), cervical in 1 (8%), vaginal cancer in 1 (8%), and uterine sarcoma in 1 (8%). Recurrence was localized deep in the pelvis in 7 cases (58%), lymph nodes in 3 (25%), and extraperitoneal in 2 cases (17%). Recurrence was dimmed in the surgical field, due to either presence of adherences, deep anatomic position, small size, and/or lack of tactile feeling. IOUS was able to identify the lesions in all women, allowing MIS (83% laparoscopy and 17% robotic) complete cytoreduction, with no conversion to laparotomy. Median operative time was 150 minutes (range, 77-280). No intraoperative/postoperative complications occurred. Histologic examination confirmed the presence of recurrence in 11 of 12 cases (92%), whereas the remaining case showed inflammatory tissue. With a median follow-up time of 15 months (range, 6-19), all patients except 2 were still alive. CONCLUSIONS: About 1 of 4 patients (25%) with single gynecologic cancer recurrence needs IOUS to benefit from MIS for complete secondary cytoreduction. PMID- 29325967 TI - A Randomized Controlled Trial for Abdominal Binder Use after Laparoendoscopic Single-Site Surgery. AB - STUDY OBJECTIVE: To compare postoperative pain in patients using an abdominal binder with a control group after laparoendoscopic single-site (LESS) surgery. DESIGN: A randomized controlled trial (Canadian Task Force classification level 1). SETTING: An academic gynecologic surgeon's practice. PATIENTS: Private patients undergoing surgery performed by a fellowship-trained minimally invasive gynecologic surgeon between April 2016 and April 2017. INTERVENTIONS: Ninety total patients were selected for this study, with 60 randomized to receive an abdominal binder after surgery and 30 patients randomized to the control group without a binder. MEASUREMENTS AND MAIN RESULTS: Using a 10-point verbal analog scale, patients recorded pain levels for 3 weeks postoperatively on a variety of measures, including overall and incisional pain. They recorded results on postoperative days 0, 1, 2, 3, 4, 7, 14, and 21. On average, the association between time and the overall pain score did not differ with binder use (p = .37). The overall pain decreases significantly over time (p < .001). After adjusting for time, the overall pain score differed significantly by binder status (p = .04). Those without a binder reported an average pain score that was 1.13 (standard deviation = 0.55) points higher than those with a binder across the first week. CONCLUSION: The results suggest that abdominal binder use after LESS surgery may be beneficial in reducing postoperative pain in the first week. Results from this study can provide feasibility data for future studies. PMID- 29325968 TI - Regarding "Accuracy of Tubal Patency Assessment during Diagnostic Hysteroscopy Compared with Laparoscopy in Infertile Women: A Retrospective Cohort Study". PMID- 29325969 TI - Population structure and genetic diversity of Rhipicephalus microplus in Zimbabwe. AB - Recently there was an expansion in the geographic range of Rhipicephalus microplus in Zimbabwe. In order to understand gene flow patterns and population structure in this highly invasive and adaptable cattle tick, a population genetics study was carried out. Eighty-seven R. microplus tick samples drawn from 5 distinct populations were genotyped using eight polymorphic microsatellite loci. Genetic diversity (He) was high (0.755-0.802) in all the populations, suggesting high levels of gene flow with 97% of genetic variation found within populations and 3% amongst populations. No isolation by distance was observed with low but significant genetic differentiation amongst the populations (0 0.076). Most of the sampled individuals had admixed genetic backgrounds, except for those from Matabeleland North whose genetic makeup appeared different from the rest. Rhipicephalus microplus was recently recorded in this area and the environmental conditions do not support survival of the tick there. These results confirm recent range expansion of the tick and the lowest genetic diversity recorded in the Matabeleland North population is suggestive of a founder effect, which may lead to genetic drift. Generally, the very low levels of genetic differentiation amongst the populations could be a result of the frequent movement of livestock from one area to another, which will have implications for disease control. This study offers further opportunities to study evolutionary adaptation of R. microplus in Zimbabwe and southern Africa. PMID- 29325971 TI - Incorporation of fetal and child PFOA dosimetry in the derivation of health-based toxicity values. AB - BACKGROUND: Multiple agencies have developed health-based toxicity values for exposure to perfluorooctanoic acid (PFOA). Although PFOA exposure occurs in utero and through breastfeeding, current health-based toxicity values have not been derived using fetal or child dosimetry. Therefore, current values may underestimate the potential risks to fetuses and nursing infants. OBJECTIVE: Using fetal and child dosimetry, we aimed to calculate PFOA maternal human equivalent doses (HEDs), corresponding to a developmental mouse study lowest observed adverse effect level (LOAEL, 1mg/kg/day). Further, we investigated the impact of breastfeeding duration and PFOA half-life on the estimated HEDs. METHODS: First, a pharmacokinetic model of pregnancy and lactation in mice was used to estimate plasma PFOA levels in pups following a maternal exposure to 1mg PFOA/kg/day for gestational days 1-17. Four plasma PFOA concentration metrics were estimated in pups: i) average prenatal; ii) average postnatal; iii) average overall (prenatal and postnatal); and iv) maximum. Then, Monte Carlo simulations were performed using a pharmacokinetic model of pregnancy and lactation in humans to generate distributions of maternal HEDs that would result in fetal/child plasma levels equivalent to those estimated in pups using the mouse model. Median (HED50) and 1st percentile (HED01) of calculated HEDs were calculated. RESULTS: Estimated PFOA maternal HED50s ranged from 3.0*10-4 to 1.1*10-3mg/kg/day and HED01s ranged from 4.7*10-5 to 2.1*10-4mg/kg/day. All calculated HEDs were lower than the HED based on adult dosimetry derived by the Environmental Protection Agency (EPA) (5.3*10-3mg/kg/day). CONCLUSION: Our results suggest that fetal/child dosimetry should be considered when deriving health-based toxicity values for potential developmental toxicants. PMID- 29325972 TI - Antioxidant activity of CAPE (caffeic acid phenethyl ester) in vitro can protect human sperm deoxyribonucleic acid from oxidative damage. AB - PURPOSE: Sperm processing (e.g., centrifugation) used in preparation for assisted reproduction can result in excessive generation of reactive oxygen species (ROS) and potential sperm damage. The use of antioxidants during sperm processing has been shown to prevent iatrogenic sperm damage, including DNA damage. In this study, we evaluated the effect of caffeic acid phenethyl ester (CAPE) on oxidative stress mediated sperm dysfunction and DNA damage. METHODS: Semen samples were obtained to liquefy at room temperature. After centrifugation and washing protocols, spermatozoa were incubated in a single step supplemented medium with either of 10, 50 or 100 MUmol/L CAPE for 2 hours at 36 degrees C. After incubation period, MDA levels of seminal plasma were measured. The fragmentation in sperm DNA was detected by light microscopy via use of an aniline blue assay, while ultrastructural morphology was analyzed by transmission electron microscopy. RESULTS: Significant increase has been observed in percent chromatin condensation (assessed by aniline blue staining) and Malondialdehyde (Mmol/L) in oligoasthenoteratozoospermia group before the centrifugation (0.57 +/ 0.15). Incubation of samples with 100 MUmol/L CAPE after centrifugation resulted in a significantly lower percent chromatin condensation compared to samples incubated without CAPE (0.42 +/- 0.12) (P < 0.0033). Incubation of all samples with CAPE (10 MUmol/L, 50 MUmol/L, 100 MUmol/L.) after centrifugation resulted in a significantly lower percentage of Malondialdehyde levels. CONCLUSIONS: The data suggests that preincubation of spermatozoa with the antioxidant CAPE offers protection against oxidative DNA damage in vitro. PMID- 29325973 TI - Cardiac electronic implantable devices after tricuspid valve surgery. AB - The demand for tricuspid valve (TV) surgery has increased continuously in the last years. Recent registry data have confirmed that TV repair or replacement carry an increased risk of conduction disorders requiring permanent pacemaker implantation, specifically for patients having multivalve surgery. The implantation of an endocardial right ventricular lead in those patients may impair TV function, and some other approaches may be discussed to avoid traversing the valve. This contemporary review describes the different options currently available for patients requiring pacemaker or defibrillation leads implantation after TV surgery. PMID- 29325970 TI - The role of adjuvant immunomodulatory agents for treatment of severe influenza. AB - A severe inflammatory immune response with hypercytokinemia occurs in patients hospitalized with severe influenza, such as avian influenza A(H5N1), A(H7N9), and seasonal A(H1N1)pdm09 virus infections. The role of immunomodulatory therapy is unclear as there have been limited published data based on randomized controlled trials (RCTs). Passive immunotherapy such as convalescent plasma and hyperimmune globulin have some studies demonstrating benefit when administered as an adjunctive therapy for severe influenza. Triple combination of oseltamivir, clarithromycin, and naproxen for severe influenza has one study supporting its use, and confirmatory studies would be of great interest. Likewise, confirmatory studies of sirolimus without concomitant corticosteroid therapy should be explored as a research priority. Other agents with potential immunomodulating effects, including non-immune intravenous immunoglobulin, N-acetylcysteine, acute use of statins, macrolides, pamidronate, nitazoxanide, chloroquine, antiC5a antibody, interferons, human mesenchymal stromal cells, mycophenolic acid, peroxisome proliferator-activated receptors agonists, non-steroidal anti inflammatory agents, mesalazine, herbal medicine, and the role of plasmapheresis and hemoperfusion as rescue therapy have supportive preclinical or observational clinical data, and deserve more investigation preferably by RCTs. Systemic corticosteroids administered in high dose may increase the risk of mortality and morbidity in patients with severe influenza and should not be used, while the clinical utility of low dose systemic corticosteroids requires further investigation. PMID- 29325975 TI - Procedural outcomes and long-term survival associated with lead extraction in patients with abandoned leads. AB - BACKGROUND: The decision to abandon or extract superfluous sterile leads is controversial. OBJECTIVE: The purpose of this study was to compare procedural outcomes and long-term survival of patients with and those without abandoned leads undergoing lead extraction (LE). METHODS: Retrospective review of all patients who had undergone transvenous LE at our institution from January 2007 to May 2016 was performed. Patients were stratified into 2 groups based on the presence (group 1) or absence (group 2) of abandoned leads. RESULTS: Among 774 patients who had undergone LE procedures, 38 (4.9%) had abandoned leads (group 1). Dwell time of the oldest extracted lead was longer in group 1 vs group 2 (7.6 +/- 4.9 years vs 5.6 +/- 4.4 years; P = .017), as was infection as an indication for LE (76% vs 33%; P <.001). A bailout femoral approach was more commonly required in group 1 than in group 2 (18.4% vs 6%; P = .007). Complete procedural success rates were similar (92.1% in group 1 vs 95.0% in group 2; P = .439), but there was a trend toward lower clinical success in group 1 (92.1% vs 97.4%; P = .088), primarily due to failure to remove all hardware in the setting of infection. Major procedural complication rates were similar (2.6% in group 1 vs 1.2% in group 2; P = .397), as was long-term survival (mean follow-up 2.3 +/- 2.2 years). CONCLUSION: Abandoned leads at the time of LE were associated with increased procedural complexity, including a higher rate of bailout femoral extraction, and may be associated with lower clinical success. Among appropriately selected patients, consideration should be given to LE instead of abandonment. PMID- 29325974 TI - Fast nonclinical ventricular tachycardia inducible after ablation in patients with structural heart disease: Definition and clinical implications. AB - BACKGROUND: Noninducibility of ventricular tachycardia (VT) with an equal or longer cycle length (CL) than that of the clinical VT is considered the minimum ablation endpoint in patients with structural heart disease. Because their clinical relevance remains unclear, fast nonclinical VTs are often not targeted. However, an accepted definition for fast VT is lacking. The shortest possible CL of a monomorphic reentrant VT is determined by the ventricular refractory period (VRP). OBJECTIVE: The purpose of this study was to propose a patient-specific definition for fast VT based on the individual VRP (fVTVRP) and assess the prognostic significance of persistent inducibility after ablation of fVTVRP for VT recurrence. METHODS: Of 191 patients with previous myocardial infarction or with nonischemic cardiomyopathy undergoing VT ablation, 70 (age 63 +/- 13 years; 64% ischemic) remained inducible for a nonclinical VT and composed the study population. FVTVRP was defined as any VT with CL <=VRP400 + 30 ms. Patients were followed for VT recurrence. RESULTS: After ablation, 30 patients (43%) remained inducible exclusively for fVTVRP and 40 (57%) for any slower VT. Patients with only fVTVRP had 3-year VT-free survival of 64% (95% confidence interval [CI] 46% 82%) compared to 27% (95% CI 14%-48%) for patients with any slower remaining VT (P = .013). Inducibility of only fVTVRP was independently associated with lower VT recurrence (hazard ratio 0.38; 95% CI 0.19-0.86; P = .019). Among 36 patients inducible for any fVTVRP, only 1 had recurrence with fVTVRP. CONCLUSION: In patients with structural heart disease, inducibility of exclusively fVTVRP after ablation is associated with low VT recurrence. PMID- 29325978 TI - Management of cardiac implantable electronic devices in the presence of left ventricular assist devices. AB - Left ventricular assist devices (LVAD) are increasingly used in the management of patients with advanced heart failure. Many of these patients have or will be considered for a cardiac implantable electronic device (CIED) such as an implantable cardioverter-defibrillator or a cardiac resynchronization therapy device. Frequent interplay is often encountered due to the complexity of these devices and the underlying disease states. Proactive management strategies and an awareness of interactions may help reduce adverse events. Here we review the current literature, present management recommendations, and discuss potential future investigations for CIEDs in patients with LVADs. PMID- 29325976 TI - Profile of patients with Brugada syndrome presenting with their first documented arrhythmic event: Data from the Survey on Arrhythmic Events in BRUgada Syndrome (SABRUS). AB - BACKGROUND: Detailed information on the profile of patients with Brugada syndrome (BrS) presenting their first arrhythmic event (AE) after prophylactic implantation of an implantable cardioverter-defibrillator (ICD) is limited. OBJECTIVES: The objectives of this study were (1) to compare clinical, electrocardiographic, electrophysiologic, and genetic profiles of patients who exhibited their first documented AE as aborted cardiac arrest (group A) with profiles of those in whom the AE was documented after prophylactic ICD implantation (group B) and (2) to characterize group B patients' profile using the class II indications for ICD implantation established by HRS/EHRA/APHRS expert consensus statement in 2013. METHODS: A survey of 23 centers from 10 Western and 4 Asian countries enabled data collection of 678 patients with BrS who exhibited their AE (group A, n = 426; group B, n = 252). RESULTS: The first AE occurred in group B patients 6.7 years later than in group A (mean age 46.1 +/ 13.3 years vs 39.4 +/- 15.1 years; P < .001). Group B patients had a higher incidence of family history of sudden cardiac death and SCN5A mutations. Of the 252 group B patients, 189 (75%) complied with the HRS/EHRA/APHRS indications whereas the remaining 63 (25%) did not. CONCLUSION: Patients with BrS with the first AE documented after prophylactic ICD implantation exhibited their AE at a later age with a higher incidence of positive family history of sudden cardiac death and SCN5A mutations as compared with those presenting with aborted cardiac arrest. Only 75% of patients who exhibited an AE after receiving a prophylactic ICD complied with the 2013 class II indications, suggesting that efforts are still required for improving risk stratification. PMID- 29325979 TI - An unusual case of complete atrioventricular block causing Takotsubo syndrome. AB - Complete atrioventricular (AV) block in association with Takotsubo syndrome (TS) has been well recognized, but the cause and effect relationship has not been elucidated. We describe a 78-year-old female who presented with complete AV block but one week later developed new-onset, diffuse T-wave inversions, QT prolongation, and acceleration of junctional escape rate. Left ventriculogram revealed features typical of TS. One year after permanent pacemaker implantation, complete AV block persisted despite the reversal of wall motion defects implying that conduction abnormality was the trigger of TS rather than its consequence. PMID- 29325980 TI - The emerging role of nanomaterials in immunological sensing - a brief review. AB - Nanomaterials are beginning to play an important role in the next generation of immunological assays and biosensors, with potential impacts both in research and clinical practice. In this brief review, we highlight two areas in which nanomaterials are already making new and important contributions in the past 5-10 years: firstly, in the improvement of assay and biosensor sensitivity for detection of low abundance proteins of immunological significance, and secondly, in the real-time and continuous monitoring of protein secretion from arrays of individual cells. We finish by challenging the immunology/sensing communities to work together to develop nanomaterials that can provide real-time, continuous, and sensitive molecular readouts in vivo, a lofty goal that will require significant collaborative effort. PMID- 29325981 TI - "Spiked Helmet" electrocardiogram sign in a patient with takotsubo syndrome: Similarities with a previously described marker. PMID- 29325977 TI - Role of apamin-sensitive small conductance calcium-activated potassium currents in long-term cardiac memory in rabbits. AB - BACKGROUND: Apamin-sensitive small conductance calcium-activated K current (IKAS) is up-regulated during ventricular pacing and masks short-term cardiac memory (CM). OBJECTIVE: The purpose of this study was to determine the role of IKAS in long-term CM. METHODS: CM was created with 3-5 weeks of ventricular pacing and defined by a flat or inverted T wave off pacing. Epicardial optical mapping was performed in both paced and normal ventricles. Action potential duration (APD80) was determined during right atrial pacing. Ventricular stability was tested before and after IKAS blockade. Four paced hearts and 4 normal hearts were used for western blotting and histology. RESULTS: There were no significant differences in either echocardiographic parameters or fibrosis levels between groups. Apamin induced more APD80 prolongation in CM than in normal ventricles (mean [95% confidence interval]: 9.6% [8.8%-10.5%] vs 3.1% [1.9%-4.3%]; P <.001). Apamin significantly lengthened APD80 in the CM model at late activation sites, indicating significant IKAS up-regulation at those sites. The CM model also had altered Ca2+ handling, with the 50% Ca2+ transient duration and amplitude increased at distal sites compared to a proximal site (near the pacing site). After apamin, the CM model had increased ventricular fibrillation (VF) inducibility (paced vs control: 33/40 (82.5%) vs 7/20 (35%); P <.001) and longer VF durations (124 vs 26 seconds; P <.001). CONCLUSION: Chronic ventricular pacing increases Ca2+ transients at late activation sites, which activates IKAS to maintain repolarization reserve. IKAS blockade increases VF vulnerability in chronically paced rabbit ventricles. PMID- 29325982 TI - Multiple cerebral infarct with cerebral vasculitis in a young patient with ulcerative colitis. AB - Ulcerative colitis (UC) is a chronic and debilitating disorder, characterized by inflammation of the colonic mucosa. UC can be considered a systemic disorder but UC-related manifestations in the central nervous system (CNS) are quite rare. A 29-year-old man was admitted to the emergency department with repeated generalized tonic-clonic (GTC) type seizures. Based on brain CT, brain metastasis or hemorrhagic infarct was suspected. Diffusion-weighted image of brain MRI showed high signal in the left thalamus and heterogenous enhancement in the right parietal and left frontal lobes. This image indicated a cerebral infarct, but could not completely rule out cerebral metastasis and vasculitis, or any other pathology. However, the brain biopsy revealed multiple thromboemboli with acute inflammation and necrosis. Thus, the patient was diagnosed with multiple cerebral infarcts with cerebral vasculitis, occurring as a complication of UC. In conclusion, CNS manifestations of UC are rare. However, clinicians should consider uncommon diagnoses like vasculitis and thromboembolism in patients with UC presenting with seizures. PMID- 29325983 TI - A Case of Delirium and Rhabdomyolysis in Severe Iatrogenic Opioid Withdrawal. PMID- 29325984 TI - Minimally Invasive Repair of Pectus Carinatum. AB - BACKGROUND: The second most common deformity of the anterior chest wall, pectus carinatum, is a diverse deformity that has been largely managed using open techniques. This study reviews clinical experience with a newly designed bar for minimally invasive repair of pectus carinatum. METHODS: We reviewed the records of all patients recorded in our Chest Wall Deformities Clinical Database. Between January 2006 and November 2016, minimally invasive repair of pectus carinatum was performed in 172 patients. All met the criteria of a "compression test" of 10 to 25 kg/cm2. The mean age was 17.3 years, and 22.7% had a positive family history of a congenital chest wall deformity. Symmetric and asymmetric deformities were treated. During our study period, we designed 4 different bar configurations and their related stabilizers. All patients are assessed every 3 to 6 months. After 2 to 3 years of follow-up, the bar and the stabilizers are removed. RESULTS: Of 172 patients, 97.1% tolerated the procedure very well. The operation was a mean length 76.6 minutes. Average blood loss was 40 mL. Mean hospital length of stay was 3.7 days. Complications included pneumothorax, wire breakdown/rib cut, wound infection, severe pain, skin hyperpigmentation, nickel allergy, and overcorrection leading to excavatum. Patients returned to routine activity in 10 to 14 days. With a mean follow-up of 29.8 months in bar removal patients, 130 of 172 (93.8%) reported excellent results. CONCLUSIONS: Minimally invasive repair of pectus carinatum with the technically modified fourth-generation bar and its securing system has advantages of low morbidity, short hospital stay, and excellent cosmetic results, even in asymmetric cases. PMID- 29325985 TI - Platelet-Activating Antibodies Are Detectable at the Earliest Onset of Heparin Induced Thrombocytopenia, With Implications for the Operating Characteristics of the Serotonin-Release Assay. AB - BACKGROUND: Heparin-induced thrombocytopenia (HIT) is a prothrombotic drug reaction caused by platelet-activating antibodies that recognize platelet factor 4 (PF4)/heparin complexes. It is unknown whether platelet-activating antibodies are detectable at the onset of the HIT-related platelet count fall. METHODS: Available blood samples from 18 patients obtained at onset of HIT were tested using the serotonin-release assay (SRA), a test for platelet-activating antibodies, and a PF4-dependent enzyme-linked immunosorbent assay (ELISA). Patient samples showing a delay of > 2 days between ELISA and SRA seroconversion were tested for subthreshold levels of platelet-activating antibodies using two modifications of the SRA that amplify detection of HIT antibodies. We also estimated SRA sensitivity and specificity in two postorthopedic surgery clinical trials (633 samples), including assessing whether a positive SRA influenced platelet count recovery in the absence of thrombocytopenia. RESULTS: Platelet activating HIT antibodies were detected in all 18 patients at the beginning of the HIT-related platelet count fall. Although ELISA seroconversion usually preceded SRA seroconversion by only 1 day (median), subthreshold levels of platelet-activating antibodies were detected in both patients who exhibited a lag between ELISA and SRA seroconversion. SRA sensitivity was 100% (18/18), and its specificity was 97% (597/615). Nonthrombocytopenic SRA-positive patients with ongoing heparin treatment exhibited blunted platelet count recovery vs control subjects, suggesting even higher SRA specificity for detecting abnormal platelet count profiles. CONCLUSIONS: Platelet-activating HIT antibodies are detectable at the onset of the HIT-related platelet count fall. The SRA has high sensitivity and specificity for HIT, and indicates that presence of HIT antibodies can blunt postoperative platelet count recovery. PMID- 29325986 TI - The Challenge of Rare Diseases. AB - Rare diseases pose particular challenges to patients who are affected, to the clinicians who care for them, and to the investigators who study their conditions. Although individually uncommon, rare diseases are common in the aggregate, with approximately 7,000 described rare diseases affecting 25 to 30 million US adults. Challenges posed to affected individuals and their families largely regard being diagnosed, receiving optimal care, and affording disease specific medications. Challenges facing clinicians who care for affected individuals include gaining knowledge and experience in caring for such patients, and the availability of local experts and of expert guidelines. Finally, challenges to investigators regard the difficulty and expense of assembling large cohorts of affected individuals for study, and garnering funding for research. Fortunately, in the face of these challenges, the steadfast resolve of patient and clinical/scientific communities to enhance care and generate new knowledge has fostered a large inventory of countermeasures to offset these challenges. Although further progress is surely needed, successes to date include the formation of powerful patient advocacy groups which have brokered collaborations between the patient, scientific communities, the government, and pharma/device communities in service of detection, optimal care, and research; procurement of funds to support research; formation of consortia of clinicians and scientists to collaborate; and general activation of the respective patient communities to perpetuate these successes. Persisting needs include enhanced detection strategies, dissemination of knowledge regarding optimal care, and research to prevent, treat, and cure disease. PMID- 29325987 TI - Transfer of Pectobacterium carotovorum subsp. carotovorum strains isolated from potatoes grown at high altitudes to Pectobacterium peruviense sp. nov. AB - Seven Gram-negative, rod-shaped pectinolytic bacteria strains designated as IFB5227, IFB5228, IFB5229, IFB5230, IFB5231, IFB5232, IFB5636, isolated from potato tubers cultivated in Peru at high altitude (2400-3800m) were subjected to polyphasic analyses that revealed their distinctiveness from the other Pectobacterium species. Phylogenetic analyses based on five housekeeping genes (gyrA, recA, recN, rpoA and rpoS) clearly showed strains separateness, simultaneously indicating Pectobacterium atrosepticum, Pectobacterium wasabiae, Pectobacterium parmentieri and Pectobacterium betavasculorum as the closest relatives. In silico DNA-DNA hybridization of strain IFB5232T with other Pectobacterium type strains revealed significant drop in DDH value below 70%, which is a prerequisite to distinguish Pectobacterium peruviense. The ANI values supported the proposition of delineation of the P. peruviense. Genetic REP-PCR fingerprint and detailed MALDI-TOF MS proteomic profile sealed the individuality of the studied strains. However, phenotypic assays do not indicate immense differences. Provided results of analyses performed for seven Peruvian strains are the basis for novel species distinction and reclassification of the strains IFB5227-5232 and IFB5636, previously classified as Pectobacterium carotovorum subsp. carotovorum. Here, we propose to establish the IFB5232 isolate as a type strain (=PCM2893T=LMG30269T=SCRI179T) with the name Pectobacterium peruviense sp. nov. PMID- 29325988 TI - Arboriscoccus pini gen. nov., sp. nov., an endophyte from a pine tree of the class Alphaproteobacteria, emended description of Geminicoccus roseus, and proposal of Geminicoccaceae fam. nov. AB - Bacterial strain B29T1T was isolated from the endophytic microbial community of a Pinus pinaster tree trunk and characterized. Strain B29T1T stained Gram-negative and formed diplococci that grew optimally at 26-30 degrees C and at pH 6.0-7.0. The G+C content of the DNA was 61.6mol%. The respiratory quinone was ubiquinone 10 (UK-10), and the major fatty acids were C16:0, cyclo-C19:0omega8c and C18:0 12 methyl, representing 64% of the total fatty acids. Phylogenetic analyses based on the 16S rRNA gene sequences placed strain B29T1T within the order Rhodospirillales in a distinct lineage that also included the genus Geminicoccus. The 16S rRNA gene sequence similarities of B29T1T to that of Candidatus Alysiomicrobium bavaricum, Geminicoccus roseus and Candidatus Alysiosphaera europeae were 92.6%, 89.9% and 89.2%, respectively. The analysis of the available genomes from the closest families showed 177 core genes that reveals a novel family-level clade including the type strain of the genus Geminicoccus and the strain B29T1T. Analysis of B29T1T genome revealed all the genes involved in autotrophic carbon dioxide fixation via the reductive pentose phosphate pathway and genes encoding for starch/glycogen and chitin degradation. The phylogenetic, phenotypic and chemotaxonomic data showed that strain B29T1T (=CIP 110763T, =LMG 27745T) represents the type of a novel species and genus, for which we propose the name Arboriscoccus pini gen. nov., sp. nov. A new family (Geminicoccaceae fam. nov.) is proposed for Arboriscoccus, Geminicoccus, Candidatus Alysiomicrobium and Candidatus Alysiosphaera. The description of the Geminicoccus roseus DSM 18922T is also emended. PMID- 29325989 TI - Proteomic analysis reveals the important roles of alpha-5-collagen and ATP5beta during skin ulceration syndrome progression of sea cucumber Apostichopus japonicus. AB - : Apostichopus japonicus is one of the most important aquaculture species in China. Skin ulceration syndrome (SUS) of sea cucumber is a common and serious disease affected the development of A. japonicus culture industry. To better understand the response mechanisms of A. japonicus during SUS progression, the protein variations in the body wall of A. japonicus at different stages of SUS were investigated by a comparative proteomic approach based on isobaric tags for relative and absolute quantification. A total of 1449 proteins were identified from the samples at different SUS stages. Among these proteins, 145 proteins were differentially expressed in the SUS-related samples compared to those of healthy A. japonicus. These differentially expressed proteins involved a wide range of functions. Among these differentially expressed proteins, only two proteins, alpha-5-collagen and an unknown function protein, were differentially expressed during the whole progression of SUS compared with healthy A. japonicus. In addition, ATP synthase subunit beta (ATP5beta) interacted with a variety of proteins with different functions during the SUS progression. These results implied that alpha-5-collagen and ATP5beta could play important roles during the SUS progression of A. japonicus. Our study provided a new sight to understand the molecular responses of sea cucumber during the SUS progression and accumulated data for the prevention of SUS in sea cucumber aquaculture. BIOLOGICAL SIGNIFICANCE: The current study aimed to reveal how the body wall of Apostichopus japonicus response to skin ulceration syndrome (SUS). To the best of our knowledge, this is the first proteomic study analyzing the differences in protein profile of sea cucumber during the whole SUS progression. By analyzing the expression differences of the proteome via isobaric labeling-based quantitative proteomic, we identified some proteins which may play important roles during the SUS progression. According to the enrichment analyses of these proteins based on Gene Ontology and Kyoto Encyclopedia of Genes and Genomes, a draft view of how the sea cucumber affected by SUS has been drawn. The common and unique differentially expressed proteins by Venn analysis showed that alpha-5-collagen was down-regulated at all stages of SUS, which had the potential as a target component for the host-directed SUS therapy. In addition, ATP5beta, a subunit of mitochondrial ATP synthase, interacting with a variety of proteins with different functions during the SUS progression. This result illustrated that energy production and metabolism could play an important role in the formation of skin ulceration and resistance to pathogens in sea cucumber. The results of this study will be helpful for researchers to gain insights into the complex molecular mechanism of SUS in sea cucumber. PMID- 29325990 TI - Quantitative proteomics reveals a role of JAZ7 in plant defense response to Pseudomonas syringae DC3000. AB - : Jasmonate ZIM-domain (JAZ) proteins are key transcriptional repressors regulating various biological processes. Although many studies have studied JAZ proteins by genetic and biochemical analyses, little is known about JAZ7 associated global protein networks and how JAZ7 contributes to bacterial pathogen defense. In this study, we aim to fill this knowledge gap by conducting unbiased large-scale quantitative proteomics using tandem mass tags (TMT). We compared the proteomes of a JAZ7 knock-out line, a JAZ7 overexpression line, as well as the wild type Arabidopsis plants in the presence and absence of Pseudomonas syringae DC3000 infection. Both pairwise comparison and multi-factor analysis of variance reveal that differential proteins are enriched in biological processes such as primary and secondary metabolism, redox regulation, and response to stress. The differential regulation in these pathways may account for the alterations in plant size, redox homeostasis and accumulation of glucosinolates. In addition, possible interplay between genotype and environment is suggested as the abundance of seven proteins is influenced by the interaction of the two factors. Collectively, we demonstrate a role of JAZ7 in pathogen defense and provide a list of proteins that are uniquely responsive to genetic disruption, pathogen infection, or the interaction between genotypes and environmental factors. SIGNIFICANCE: We report proteomic changes as a result of genetic perturbation of JAZ7, and the contribution of JAZ7 in plant immunity. Specifically, the similarity between the proteomes of a JAZ7 knockout mutant and the wild type plants confirmed the functional redundancy of JAZs. In contrast, JAZ7 overexpression plants were much different, and proteomic analysis of the JAZ7 overexpression plants under Pst DC3000 infection revealed that JAZ7 may regulate plant immunity via ROS modulation, energy balance and glucosinolate biosynthesis. Multiple variate analysis for this two-factor proteomics experiment suggests that protein abundance is determined by genotype, environment and the interaction between them. PMID- 29325991 TI - Bothrops jararaca accessory venom gland is an ancillary source of toxins to the snake. AB - : In Viperidae snakes, it has been attributed to the main venom gland, a component of the venom gland apparatus, the function of synthesizing all venom toxins and storing them inside a basal-central lumen. However, the role of the accessory gland is still unknown. Here, we analyzed the proteome and the transcriptome of the accessory gland during venom production and secretion cycle. We showed that the accessory gland expresses and synthesizes toxins that are similar to those produced by the main venom gland such as C-type lectin/C-type lectin-like proteins, metalloproteinase, phospholipase A2, cysteine rich secretory protein, nerve growth factor, vascular endothelial growth factor, serine proteinase, and l-amino acid oxidase. Our data have shown that toxin synthesis in the accessory gland is asynchronous when compared to the same process in the venom gland. Moreover, this gland also expresses inhibitors of venom phospholipases A2 and metalloproteinases. Transcriptome analysis showed that the transcripts that correspond to toxins in the accessory gland have a good correlation to the main venom gland transcripts. Therefore, it is proposed that the accessory gland is an ancillary source of toxins to the snake, and provides inhibitors that could control venom toxicity (and integrity) during storage. SIGNIFICANCE: In this study, we propose that the accessory venom gland acts as an important ancillary source of toxins to the snake, in lieu of a depleted main venom gland, and provides inhibiting agents that control venom toxicity (and integrity) during its storage. PMID- 29325992 TI - Quantitative analysis of lipid debris accumulation caused by cuprizone induced myelin degradation in different CNS areas. AB - Degradation of myelin sheath is thought to be the cause of neurodegenerative diseases, such as multiple sclerosis (MS), but definitive agreement on the mechanism of how myelin is lost is currently lacking. Autoimmune initiation of MS has been recently questioned by proposing that the immune response is a consequence of oligodendrocyte degeneration. To study the process of myelin breakdown, we induced demyelination with cuprizone and applied coherent anti Stokes Raman scattering (CARS) microscopy, a non-destructive label-free method to image lipid structures in living tissue. We confirmed earlier results showing a brain region dependent myelin destructive effect of cuprizone. In addition, high resolution in situ CARS imaging revealed myelin debris forming lipid droplets alongwith myelinated axon fibers. Quantification of lipid debris with custom-made software for segmentation and three dimensional reconstruction revealed brain region dependent accumulation of lipid drops inversely correlated with the thickness of myelin sheaths. Finally, we confirmed that in situ CARS imaging is applicable to living human brain tissue in brain slices derived from a patient. Thus, CARS microscopy is potent tool for quantitative monitoring of myelin degradation in unprecedented spatiotemporal resolution during oligodendrocyte damage. We think that the accumulation of lipid drops around degrading myelin might be instrumental in triggering subsequent inflammatory processes. PMID- 29325993 TI - Serum haptoglobin in Chinese patients with Alzheimer's disease and mild cognitive impairment: A case-control study. AB - BACKGROUND: Serum level of Haptoglobin (Hp) maybe associated with Alzheimer's disease (AD) and mild cognitive impairment (MCI). OBJECTIVE: To investigate associations between serum Hp and AD, as well as between Hp and MCI. METHODS: Serum levels of Hp were measured and analyzed for 51 patients with AD, 139 patients with MCI and their healthy controls matched with sex and age. All study subjects were from a survey among residents aged 60 years and over in a community located in the southwest suburb of Shanghai. RESULTS: Serum levels of Hp were observed significantly higher in AD and MCI cases than controls (both p < 0.0001). A significant positive correlation was found between Hp and Activities of Daily Living (ADL) score (rs = 0.430, p = 0.007), as well as between Hp and Clinical Dementia Rating (CDR) score (rs = 0.359, p = 0.027) in all AD patients. According to the receiver operating characteristic (ROC) curve analysis, the optimal cut-off point for Hp was found to be 67.50 MUg/ml (sensitivity, 0.902; specificity, 0.745) in AD patients, and 44.76 MUg/ml (sensitivity, 0.986; specificity, 0.403) in MCI patients. CONCLUSION: Elevated serum levels of Hp were observed in AD and MCI patients than controls. In addition, Hp may correlate with the severity of AD. PMID- 29325994 TI - The effects of melatonin and curcumin on the expression of SIRT2, Bcl-2 and Bax in the hippocampus of adult rats. AB - OBJECTIVE: Though the mechanisms are not clearly understood, melatonin and curcumin have been reported to have neuroprotective effects. However, the mechanisms of neuroprotective effects of melatonin and curcumin in the brain are not clearly understood. In the current study, we investigated the effects of melatonin and curcumin treatments on oxidative stress parameters, the expression of SIRT2, Bcl-2 and Bax in the hippocampus. METHODS: A total of thirty adult (13 months-old) male Wistar rats were divided into five groups: Control (1% ethanol:PBS), s.c. for 30 days), dimethyl sulfoxide (10%, s.c. for 30 days), Melatonin (10 mg/kg/day, s.c. for 30 days), Curcumin (30 mg/kg/day, i.p. for 30 days) and Salermide (100 MUM, i.p. for 30 days). The levels of malondialdehyde (MDA) glutathione (GSH) were measured as oxidative stress parameters in the hippocampus. The expression levels of SIRT2, Bcl-2 and Bax proteins were tested by western blotting and the SIRT2 protein levels of the hippocampal region was measured by a sandwich ELISA method. RESULTS: Melatonin and curcumin significantly decreased MDA and SIRT2 expression in the hippocampus (p < 0.05). Accordingly, a significant increase in the GSH levels of curcumin-treated group and melatonin-treated group was observed. Melatonin, but not curcumin, significantly increased the Bcl-2 expression of the hippocampal region. There was a significant correlation between SIRT2 and MDA levels (p < 0.05). DISCUSSION: In conclusion, our results suggest that melatonin may increase cell survival in the hippocampus via decreasing oxidative stress and SIRT2 expression and increasing Bcl-2 expression. PMID- 29325995 TI - Acetylshikonin from Zicao attenuates cognitive impairment and hippocampus senescence in d-galactose-induced aging mouse model via upregulating the expression of SIRT1. AB - Zicao acts as a pleiotropic medicine in various diseases due to its particular pharmacological properties, including anti-inflammatory, anti-tumor, anti oxidative, and wound healing effects. However, few studies have focused on the function in neurodegenerative diseases of Zicao. In this study, we investigated the neuroprotective effect of Acetylshikonin (AS) from Zicao on the hippocampus of the d-galactose (d-gal)-induced sub-acute aging mouse model of Alzheimer's disease (AD). The aging model was established in male Kunming mice by subcutaneous injection of d-gal (150 mg/kg/d) for 60 days, and the mice were given AS (270, 540 and 1080 mg/kg/d) or distilled water intragastrically for 30 days after 30 days of d-gal injection. The behavioral results test by Morris Water Maze (MWM) revealed that chronic AS treatment alleviated d-gal-induced learning and memory deficits compared with the d-gal-treated mice. In addition, AS also ameliorated the oxidative stress and neuroinflammation induced by d-gal through decreasing the level of interleukin-1beta (IL-1beta), tumor necrosis factor alpha (TNF-alpha), malondialdehyde (MDA) and enhancing the activity of the antioxidant enzymes superoxide dismutase (SOD). Moreover, western blot results showed that AS can up-regulate the expression of Sirtuin 1 (SIRT1) and inhibit d gal-induced activation of p53/p21 signaling pathway in the hippocampus of mice. These results suggest that AS can execute the prevention and treatment of d-gal induced brain aging by SIRT1/P53/P21 pathway. PMID- 29325996 TI - Direct-acting antiviral therapy for hepatitis C virus infection in the kidney transplant recipient. AB - Hepatitis C virus infection (HCV) is a common comorbidity in patients who have undergone kidney transplantation and is associated with increased morbidity and mortality compared with recipients who do not have chronic HCV infection. Because interferon-alpha-based therapies can precipitate acute rejection, they are relatively contraindicated after kidney transplantation. Thus, the majority of kidney transplant recipients with HCV remain untreated. There are now all-oral, interferon-free direct-acting antiviral therapies for HCV infection that are extremely effective and well tolerated in the general population. Recent reports in the literature demonstrate that direct-acting antiviral therapies effectively cured HCV in 406 of 418 kidney transplant recipients (97%); the majority were treated with sofosbuvir-based regimens. Smaller numbers of kidney transplant recipients have been treated with paritaprevir-ritonavir, ombitasvir and dasabuvir, elbasvir-grazoprevir, or glecaprevir-pibrentasvir with excellent success. Direct-acting antiviral therapies were well tolerated and did not increase the rate of acute rejection. The latest advances include approval of regimens that can treat patients with advanced allograft dysfunction (eGFR < 30 ml/min per 1.73 m2) and "pan-genotypic" regimens that have activity against all 6 major genotypes of HCV. This review summarizes what is known about the epidemiology of HCV infection in kidney transplant recipients, and presents the landscape of direct-acting antiviral therapies and areas in need of further investigation. PMID- 29325997 TI - Reduced cortical oxygenation predicts a progressive decline of renal function in patients with chronic kidney disease. AB - Renal tissue hypoxia is a final pathway in the development and progression of chronic kidney disease (CKD), but whether renal oxygenation predicts renal function decline in humans has not been proven. Therefore, we performed a prospective study and measured renal tissue oxygenation by blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) in 112 patients with CKD, 47 with hypertension without CKD, and 24 healthy control individuals. Images were analyzed with the twelve-layer concentric objects method that divided the renal parenchyma in 12 layers of equal thickness and reports the mean R2* value of each layer (a high R2* corresponds to low oxygenation), along with the change in R2* between layers called the R2* slope. Serum creatinine values were collected to calculate the yearly change in estimated glomerular function rate (MDRD eGFR). Follow up was three years. The change in eGFR in CKD, hypertensive and control individuals was -2.0, 0.5 and -0.2 ml/min/1.73m2/year, respectively. In multivariable regression analysis adjusted for age, sex, diabetes, RAS-blockers, eGFR, and proteinuria the yearly eGFR change correlated negatively with baseline 24 hour proteinuria and the mean R2* value of the cortical layers, and positively with the R2* slope, but not with the other covariates. Patients with CKD and high outer R2* or a flat R2* slope were three times more likely to develop an adverse renal outcome (renal replacement therapy or over a 30% increase in serum creatinine). Thus, low cortical oxygenation is an independent predictor of renal function decline. This finding should stimulate studies exploring the therapeutic impact of improving renal oxygenation on renal disease progression. PMID- 29325998 TI - Use of mechanical cardiocompressor in uncontrolled donation after cardiac death. PMID- 29325999 TI - Current status of infectious endocarditis: New populations at risk, new diagnostic and therapeutic challenges. PMID- 29326000 TI - Epidemiology of tuberculosis in Spain. Results obtained by the National Epidemiological Surveillance Network in 2015. AB - The epidemiological surveillance data for tuberculosis in Spain in 2015 is analysed in this report. This information was gathered through cases reported to the Red Nacional de Vigilancia Epidemiologica [National Epidemiological Surveillance Network]. In addition, the update of the treatment of the cases reported in 2014 is included. The incidence rate of tuberculosis in 2015 was 10.59 cases per 100,000 inhabitants, 10% less than in 2014. This decrease was mainly due to the sustained decreased trend of pulmonary tuberculosis rates, from other locations and in adults, while for cases of tuberculous meningitis and in children the decrease is less marked, with a tendency to stabilization. The percentage of cases born in other countries remains stable (approximately 30% of the total). Information on HIV status is available in 63% of cases, of which 7% were HIV-positive. Regarding the treatment results, 77% of the new lung cases confirmed by culture reported in 2014 had a satisfactory result, 6% died, and 11% did not have this information. PMID- 29326001 TI - Coxsackievirus and Type 1 Diabetes Mellitus: The Wolf's Footprints. AB - Enteroviruses are important environmental contributors to islet inflammation (insulitis) in type 1 diabetes mellitus (T1DM). A recent study characterized the proteomic alterations induced by Coxsackievirus type B (CVB) infection of human islets. This provides relevant information to decipher the words of the virus induced 'dialog' between beta cells and the immune system that leads to autoimmunity. PMID- 29326002 TI - Prevalence of adult Pompe disease in patients with proximal myopathic syndrome and undiagnosed muscle biopsy. AB - We examined patients with limb-girdle muscle weakness and/or hyper-CKaemia and undiagnosed muscle biopsy for late onset Pompe disease (LOPD). Patients with an inconclusive limb-girdle muscle weakness who presented at our neuromuscular centre between 2005 and 2015 with undiagnosed muscle biopsies were examined by dry blood spot testing (DBS) including determination of the enzyme activity of acid alpha-glucosidase (GAA). In the case of depressed enzyme activity, additional gene testing of the GAA gene was carried out. Of the 340 evaluated muscle biopsies, 69 patients fulfilled the inclusion criteria and were examined with DBS. Among those patients, 76% showed a limb-girdle muscle weakness and 14% showed a hyper-CKaemia. A diagnosis of LOPD could be established in the case of two patients (2.9%) with reduced GAA enzyme activity and proof of mutations in the GAA gene. One of the two patients presents in the muscle biopsy suggestive features of Pompe disease including vacuoles with positive acid phosphatase reaction. In summary, our results show that a muscle biopsy can be helpful in identifying LOPD patients, but vacuolation with glycogen storage can also be absent. An inconspicuous muscle biopsy does not rule out Pompe disease. Consequently, all patients with limb-girdle muscle weakness should be examined by DBS before conducting a muscle biopsy. PMID- 29326003 TI - The efficacy of infection prevention and control committees in Lesotho: A qualitative study. AB - BACKGROUND: The implementation of the core components of infection prevention and control (IPC) recommended by the World Health Organization faces severe challenges, particularly in developing countries. Given that hospital IPC committees in these countries are the key implementers of IPC, there is a need to evaluate their effectiveness. This study qualitatively evaluated the effectiveness of IPC committees in the southern African country of Lesotho with the aim of identifying themes for policy discourse on improving IPC practice in the country. METHODS: Data gathering was conducted through open interviews with purposefully selected key informant IPC committee members and relevant officials at the Ministry of Health, whereas data analysis was based on grounded theory. RESULTS: Despite their commitment, IPC committees were largely ineffective because of 5 major barriers, namely poor sense of competence, administrative constraints, inadequate financial support, role uncertainty, and negative staff attitudes. Poor IPC governance was found to be a central barrier to the effectiveness of IPC committees in Lesotho. CONCLUSIONS: The import of this study is that effective IPC governance is key to improving the IPC program in Lesotho. Effective leadership with the necessary competencies is needed to steer the IPC program in the country. PMID- 29326004 TI - Health care-associated infections in Iran: A national update for the year 2015. AB - BACKGROUND: A national surveillance system for health care-associated infections (HAIs) in Iran is relatively new, and an update on incidence and mortality rates can aid clinicians and stakeholders in development of new guidelines and imperative modifications to be made. METHODS: Data were extracted from the national HAIs surveillance software for more than 7 million hospitalizations during 2015. Data regarding age, gender, deaths, ward of admission, and microbiologic findings were collected and analyzed. RESULTS: From 491 hospitals, 7,018,393 hospitalizations were reported during 2015; 82,950 patients had been diagnosed with at least 1 HAI, 6,355 of whom died (crude fatality rate, 7.7). Men comprised 51.4% of the patients. The incidence rate was calculated to be 1.18. Urinary tract infections and pneumonia were the most commonly reported infections (27.9% and 23.8%) and 33% of patients were older than age 65 years. Intensive care units had the highest incidence rates, followed by burn units with incidence rates close to 9. Highest percentages of deaths were reported among patients with an HAI in the intensive care unit (20.6%) and those with pneumonia (39.6%). CONCLUSION: Although the underreporting of HAIs hinders accurate calculation of incidence, the present study provides a general update. The results can help in modification of national guidelines and appropriate choice of antimicrobial agents in the management of HAIs. PMID- 29326005 TI - An anaerobic-aerobic sequential batch process with simultaneous methanogenesis and short-cut denitrification for the treatment of marine biofoulings. AB - Although combination of denitritation and methanogenesis for wastewater treatment has been widely investigated, an application of this technology to solid waste treatment has been rarely studied. This study investigated an anaerobic-aerobic batch system with simultaneous denitritation-methanogenesis as an effective treatment for marine biofoulings, which is a major source of intermittently discharged organic solid wastes. Preliminary NO2--exposed sludge was inoculated to achieve stable methanogenesis process without NO2- inhibition. Both high NH4+ N removal of 99.5% and high NO2--N accumulation of 96.4% were achieved on average during the nitritation step. Sufficient CH4 recovery of 101 L-CH4 kg-COD-1 was achieved, indicating that the use of NO2--exposed sludge is effective to avoid NO2- inhibition on methanogenesis. Methanogenesis was the main COD utilization pathway when the substrate solubilization occurred actively, while denitritation was the main when solubilization was limited because of substrate shortage. The results showed a high COD removal efficiency of 96.0% and a relatively low nitrogen removal efficiency of 64.4%. Fitting equations were developed to optimize the effluent exchange ratio. The estimated results showed that the increase of effluent exchange ratio during the active solubilization period increased the nitrogen removal efficiency but decreased CH4 content in biogas. An appropriate effluent exchange ratio with high anaerobic effluent quality below approximately 120 mg-N L-1 as well as sufficient CH4 gas quality which can be used as fuel for gas engine generator was achieved by daily effluent exchange of 80% during the first week and 5% during the subsequent 8 days. PMID- 29326006 TI - Digestate application in landfill bioreactors to remove nitrogen of old landfill leachate. AB - Anaerobic digestion of organics is one of the most used solution to gain renewable energy from waste and the final product, the digestate, still rich in putrescible components and nutrients, is mainly considered for reutilization (in land use) as a bio-fertilizer or a compost after its treatment. Alternative approaches are recommended in situations where conventional digestate management practices are not suitable. Aim of this study was to develop an alternative option to use digestate to enhance nitrified leachate treatment through a digestate layer in a landfill bioreactor. Two identical landfill columns (Ra and Rb) filled with the same solid digestate were set and nitrified leachate was used as influent. Ra ceased after 75 day's operation to get solid samples and calculate the C/N mass balance while Rb was operated for 132 days. Every two or three days, effluent from the columns were discarded and the columns were refilled with nitrified leachate (average N-NO3-concentration = 1,438 mg-N/L). N NO3- removal efficiency of 94.7% and N-NO3- removal capacity of 19.2 mg N-NO3 /gTS-digestate were achieved after 75 days operation in Ra. Prolonging the operation to 132 days in Rb, N-NO3- removal efficiency and N-NO3- removal capacity were 72.5% and 33.1 mg N-NO3-/gTS-digestate, respectively. The experimental analysis of the process suggested that 85.4% of nitrate removal could be attributed to denitrification while the contribution percentage of adsorption was 14.6%. These results suggest that those solid digestates not for agricultural or land use, could be used in landfill bioreactors to remove the nitrogen from old landfill leachate. PMID- 29326007 TI - Direct recovery of boiler residue by combustion synthesis. AB - Boiler residue (BR) of thermal power plants is one of the important secondary sources for vanadium production. In this research, the aluminothermic self propagating high-temperature synthesis (SHS) was used for recovering the transition metals of BR for the first time. The effects of extra aluminum as reducing agent and flux to aluminum ratio (CaO/Al) were studied and the efficiency of recovery and presence of impurities were measured. Aluminothermic reduction of vanadium and other metals was carried out successfully by SHS without any foreign heat source. Vanadium, iron, and nickel principally were reduced and gone into metallic master alloy as SHS product. High levels of efficiency (>80%) were achieved and the results showed that SHS has a great potential to be an industrial process for BR recovery. SHS produced two useful products. Metallic master alloy and fused glass slag that is applicable for ceramic industries. SHS can also neutralize the environmental threats of BR by a one step process. PMID- 29326008 TI - [Acute neurological disease due to enterovirus: A review of clinical cases in a tertiary hospital in Andalusia after an outbreak in Catalonia]. PMID- 29326009 TI - Is there sufficient evidence to repeal three decades of clinical research on chronic hepatitis C? PMID- 29326010 TI - Genomics of Corynebacterium striatum, an emerging multidrug-resistant pathogen of immunocompromised patients. AB - OBJECTIVES: Corynebacterium striatum is an emerging multidrug-resistant (MDR) pathogen of immunocompromised and chronically ill patients. The objective of these studies was to provide a detailed genomic analysis of disease-causing C. striatum and determine the genomic drivers of resistance and resistance-gene transmission. METHODS: A multi-institutional and prospective pathogen genomics programme flagged seven MDR C. striatum infections occurring close in time, and specifically in immunocompromised patients with underlying respiratory diseases. Whole genome sequencing was used to identify clonal relationships among strains, genetic causes of antimicrobial resistance, and their mobilization capacity. Matrix-assisted linear desorption/ionization-time-of-flight analyses of sequenced isolates provided curated content to improve rapid clinical identification in subsequent cases. RESULTS: Epidemiological and genomic analyses identified a related cluster of three out of seven C. striatum among lung transplant patients who had common procedures and exposures at an outlying institution. Genomic analyses further elucidated drivers of the MDR phenotypes, including resistance genes mobilized by IS3504 and ISCg9a-like insertion sequences. Seven mobilizable resistance genes were localized to a common chromosomal region bounded by unpaired insertion sequences, suggesting that a single recombination event could spread resistance to aminoglycosides, macrolides, lincosamides and tetracyclines to naive strains. CONCLUSION: In-depth genomic studies of MDR C. striatum reveal its capacity for clonal spread within and across healthcare institutions and identify novel vectors that can mobilize multiple forms of drug resistance, further complicating efforts to treat infections in immunocompromised populations. PMID- 29326011 TI - Neonatal intestinal colonization with extended-spectrum beta-lactamase-producing Enterobacteriaceae-a 5-year follow-up study. AB - OBJECTIVES: To analyse Klebsiella pneumoniae (KP) isolates from an outbreak of extended-spectrum beta-lactamase (ESBL)-producing KP and Escherichia coli (EC) among infants admitted to neonatal intensive care units and to determine the duration of the intestinal colonization. METHODS: We performed a prospective cohort study of intestinal ESBL-KP/ESBL-EC colonized neonates after a 5-month outbreak in two neonatal intensive care units. Whole genome sequencing, multilocus sequence typing, core genome multilocus sequence typing, pulsed-field electrophoresis and PCR for blaCTX-M were performed on the first isolates. Stool cultures were performed every second month after discharge until 2 years after discharge and at 5 years of age. The last positive samples were analysed with pulsed-field gel electrophoresis and PCR for blaCTX-M. The intestinal relative dominance of ESBL-producing Enterobacteriaceae was determined. RESULTS: Thirteen of 17 patients colonized with ESBL-KP/ESBL-EC survived. Isolates from 16 of 17 patients were available for analysis and featured the same strain type of ESBL KP: sequence type 101. The strain had capsule type K29 and harboured blaCTX-M-15. The virulence genes irp1, irp2, iutA, kfu and mrk were detected in all isolates. The median length of colonization was 12.5 months (range, 5-68 months). After 2 years, two of 13 patients were carriers of ESBL-KP and one of 13 of ESBL-EC. At 5 years of age, one neonate was colonized with ESBL-EC. No infant experienced an ESBL-KP/EC-infection during follow-up. CONCLUSIONS: Two years after discharge, almost one fourth of the study participants were ESBL/KP-EC carriers. ESBL-KP sequence type 101 persisted in two of 13 children for 23 to 26 months. One patient was colonized with ESBL-EC at age 5 years. PMID- 29326012 TI - Stereotactic body radiotherapy (SBRT) for patients with locally advanced pancreatic cancer: A single center experience. AB - INTRODUCTION: Despite advances in treatment, notably in systemic therapy, the prognosis of pancreatic adenocarcinoma (PADC) remains dismal. Stereotactic body radiotherapy (SBRT) is an emerging tool in the complex management of PADC. We review outcomes of SBRT for PADC at our institution. METHODS: We reviewed patients treated with SBRT for either unresectable PADC or locally recurrent PADC after surgery. Treatment was delivered using a robotic radiosurgery system with respiratory tracking. The median prescribed dose was 30 Gy (30-35 Gy), delivered in 5-6 fractions. Toxicities were reported as per CTCAE v4.0. Survival was estimated using the Kaplan-Meier method. RESULTS: Between October 2010 and March 2016, 21 patients were treated at our institution. The median follow-up was 7 months (range: 1-28). The 1-year local control rate was 57%. The 1-year overall survival was 25% for locally advanced patients and 67% for those with local recurrences (p = 0.27). Eighty percent of cancer related deaths were due to metastatic progression. Five patients (24%) had Grade I-II gastrointestinal acute toxicity; one patient had fatal gastrointestinal bleeding 6 months after SBRT. CONCLUSION: In PADC, fractionated SBRT dose schedules near 30 Gy may strike the best balance of local control and bowel toxicity. More work is required to integrate pancreatic SBRT with modern systemic therapy. PMID- 29326014 TI - Ending tuberculosis calls for leaving no one behind. PMID- 29326015 TI - Ecchymosis and/or haematoma formation after prophylactic administration of subcutaneous enoxaparin in the abdomen or arm of the critically ill patient. AB - INTRODUCTION: Ecchymosis and/or haematoma are the most common adverse events after subcutaneous administration of low molecular weight heparin. There is no strong recommendation as to the puncture site. OBJECTIVE: To evaluate the adverse events, ecchymosis and/or haematoma after the administration of prophylactic subcutaneous enoxaparin in the abdomen vs the arm in the critically ill patient. METHODOLOGY: A randomised, two-arm clinical trial (injection in the abdomen vs the arm), performed between July 2014 and January 2017, in an 18-bed, polyvalent intensive care unit. Patients receiving prophylactic enoxaparin, admitted >72h, with no liver or haematological disorders, a body mass index (BMI) >18.5, not pregnant, of legal age and with no skin lesions which would impede assessment were included. We excluded patients who died or who were transferred to another hospital before completing the evaluation. We gathered demographic and clinical variables, and the onset of ecchymosis and/or haematomas at the injection site after 12, 24, 48 and 72hours. A descriptive analysis was undertaken, with group comparison and logistic regression. The study was approved by the ethics committee with the signed consent of patients/families. RESULTS: 301 cases (11 excluded): 149 were injected in the abdomen vs 141 in the arm. There were no significant differences in demographic and clinical variables, BMI, enoxaparin dose or antiplatelet administration [ecchymosis, abdomen vs arm, n(%): 66(44) vs 72(51), P=.25] [haematoma abdomen vs arm, n(%): 9(6) vs 14(10), P=.2]. Statistical significance was found in the size of the haematomas after 72h: [area of haematoma (mm2) abdomen vs arm, median (IQR): 2(1-5.25) vs 20(5.25-156), P=.027]. CONCLUSIONS: In our patient cohort, prophylactic subcutaneous enoxaparin administered in the abdomen causes fewer haematomas after 72hours, than when administered in the arm. The incidence rate of ecchymosis and haematoma was lower than the published incidence in critically ill patients, although patients receiving anti-platelet agents present a higher risk of injury. No relationship was observed in relation to BMI. PMID- 29326016 TI - Synthesis of novel 6-substituted amino-9-(beta-d-ribofuranosyl)purine analogs and their bioactivities on human epithelial cancer cells. AB - New nucleoside derivatives with nitrogen substitution at the C-6 position were prepared and screened initially for their in vitro anticancer bioactivity against human epithelial cancer cells (liver Huh7, colon HCT116, breast MCF7) by the NCI sulforhodamine B assay. N6-(4-trifluoromethylphenyl)piperazine analog (27) exhibited promising cytotoxic activity. The compound 27 was more cytotoxic (IC50 = 1-4 MUM) than 5-FU, fludarabine on Huh7, HCT116 and MCF7 cell lines. The most potent nucleosides (11, 13, 16, 18, 19, 21, 27, 28) were further screened for their cytotoxicity in hepatocellular cancer cell lines. The compound 27 demonstrated the highest cytotoxic activity against Huh7, Mahlavu and FOCUS cells (IC50 = 1, 3 and 1 MUM respectively). Physicochemical properties, drug-likeness, and drug score profiles of the molecules showed that they are estimated to be orally bioavailable. The results pointed that the novel derivatives would be potential drug candidates. PMID- 29326017 TI - Small molecule immuno-oncology therapeutic agents. AB - Treatment of cancer by activation of an antitumor immune response is now a widely practiced and well-accepted approach to therapy. However, despite dramatic responses in some patients, the high proportion of unresponsive patients points to a considerable unmet medical need. Although antibody therapies have led the way, small molecule immuno-oncology agents are close behind. This perspective provides an overview of some of the many small molecule approaches being explored. It encompasses small molecule modulators of validated targets such as programed cell death 1 (PD-1) as well as novel approaches still to be proven clinically. PMID- 29326013 TI - A cluster of multidrug-resistant Mycobacterium tuberculosis among patients arriving in Europe from the Horn of Africa: a molecular epidemiological study. AB - BACKGROUND: The risk of tuberculosis outbreaks among people fleeing hardship for refuge in Europe is heightened. We describe the cross-border European response to an outbreak of multidrug-resistant tuberculosis among patients from the Horn of Africa and Sudan. METHODS: On April 29 and May 30, 2016, the Swiss and German National Mycobacterial Reference Laboratories independently triggered an outbreak investigation after four patients were diagnosed with multidrug-resistant tuberculosis. In this molecular epidemiological study, we prospectively defined outbreak cases with 24-locus mycobacterial interspersed repetitive unit-variable number tandem repeat (MIRU-VNTR) profiles; phenotypic resistance to isoniazid, rifampicin, ethambutol, pyrazinamide, and capreomycin; and corresponding drug resistance mutations. We whole-genome sequenced all Mycobacterium tuberculosis isolates and clustered them using a threshold of five single nucleotide polymorphisms (SNPs). We collated epidemiological data from host countries from the European Centre for Disease Prevention and Control. FINDINGS: Between Feb 12, 2016, and April 19, 2017, 29 patients were diagnosed with multidrug-resistant tuberculosis in seven European countries. All originated from the Horn of Africa or Sudan, with all isolates two SNPs or fewer apart. 22 (76%) patients reported their travel routes, with clear spatiotemporal overlap between routes. We identified a further 29 MIRU-VNTR-linked cases from the Horn of Africa that predated the outbreak, but all were more than five SNPs from the outbreak. However all 58 isolates shared a capreomycin resistance-associated tlyA mutation. INTERPRETATION: Our data suggest that source cases are linked to an M tuberculosis clone circulating in northern Somalia or Djibouti and that transmission probably occurred en route before arrival in Europe. We hypothesise that the shared mutation of tlyA is a drug resistance mutation and phylogenetic marker, the first of its kind in M tuberculosis sensu stricto. FUNDING: The Swiss Federal Office of Public Health, the University of Zurich, the Wellcome Trust, National Institute for Health Research (NIHR) Oxford Biomedical Research Centre (BRC), the Medical Research Council, BELTA-TBnet, the European Union, the German Center for Infection Research, and Leibniz Science Campus Evolutionary Medicine of the Lung (EvoLUNG). PMID- 29326018 TI - Semisynthesis, cytotoxicity, antimalarial evaluation and structure-activity relationship of two series of triterpene derivatives. AB - In this report, we describe the semisynthesis of two series of ursolic and betulinic acid derivatives through designed by modifications at the C-3 and C-28 positions and demonstrate their antimalarial activity against chloroquine resistant P. falciparum (W2 strain). Structural modifications at C-3 were more advantageous to antimalarial activity than simultaneous modifications at C-3 and C-28 positions. The ester derivative, 3beta-butanoyl betulinic acid (7b), was the most active compound (IC50 = 3.4 uM) and it did not exhibit cytotoxicity against VERO nor HepG2 cells (CC50 > 400 uM), showing selectivity towards parasites (selectivity index > 117.47). In combination with artemisinin, compound 7b showed an additive effect (CI = 1.14). While docking analysis showed a possible interaction of 7b with the Plasmodium protease PfSUB1, with an optimum binding affinity of -7.02 kcal/mol, the rather low inhibition displayed on a Bacillus licheniformis subtilisin A protease activity assay (IC50 = 93 uM) and the observed accumulation of ring forms together with a delay of appearance of trophozoites in vitro suggests that the main target of 3beta-butanoyl betulinic acid on Plasmodium may be related to other molecules and processes pertaining to the ring stage. Therefore, compound 7b is the most promising compound for further studies on antimalarial chemotherapy. The results obtained in this study provide suitable information about scaffolds to develop novel antimalarials from natural sources. PMID- 29326019 TI - Isolation of a peptide containing d-amino acid residues that inhibits the alpha helix-mediated p53-MDM2 interaction from a one-bead one-compound library. AB - alpha-Helix-mediated protein-protein interactions (PPIs) are important targets in biological research and drug development. Peptides containing d-amino acid residues are attractive molecules for inhibiting alpha-helix-mediated PPIs because of their wide surface area and high protease resistance. In this study, a peptide library was constructed using a one-bead one-compound format designed to isolate left-handed alpha-helical peptides, which are promising molecules as inhibitors of alpha-helix-mediated PPIs. Screening of the library against an alpha-helix-mediated PPI between MDM2 and p53 yielded an inhibitor of the PPI. Design and screening of the library, and biochemical and spectroscopic studies of the discovered peptide are presented. PMID- 29326020 TI - Cardiac Rupture in a Young Male Cocaine User. PMID- 29326021 TI - Similar clinical improvement and maintenance after rTMS at 5 Hz using a simple vs. complex protocol in Alzheimer's disease. AB - BRACKGROUND: Current treatments for Alzheimer's disease (AD) have a limited clinical response and methods, such as repetitive transcranial magnetic stimulation (rTMS), are being studied as possible treatments for the clinical symptoms with positive results. However, there is still seldom information on the type of rTMS protocols that deliver the best clinical improvement in AD. Objetive: To compare the clinical response between a simple stimulation protocol on the left dorsolateral prefrontal cortex (lDLPFC) against a complex protocol using six regions of interest. METHODS: 19 participants were randomized to receive any of the protocols. The analysis of repeated measures evaluated the change. RESULTS: Both protocols were equally proficient at improving cognitive function, behavior and functionality after 3 weeks of treatment, and the effects were maintained for 4 weeks more without treatment. CONCLUSION: We suggest rTMS on the lDLPFC could be enough to provide a clinical response, and the underlying mechanisms should be studied. PMID- 29326023 TI - Exploring quality of care and social inequalities related to type 2 diabetes in Hungary: Nationwide representative survey. AB - AIMS: The study aimed to launch a T2DM adult cohort that is representative of Hungary through a cross-sectional study, to produce the most important quality indicators for T2DM care, to describe social inequalities, and to estimate the absolute number of T2DM adult patients with uncontrolled HbA1c levels in Hungary. METHODS: A representative sample of the Hungarian T2DM adults (N=1280) was selected in 2016. GPs collected data on socio-demographic status by questionnaire, and on history and laboratory parameters from medical records. The process and outcome indicators used in the international monitoring practice were calculated. The socio-economic status influence was determined by multivariate logistic regression models. RESULTS: Target achievement was 61.66%, 53.48%, and 54.00% for HbA1c, LDL-C, and blood pressure, respectively, in the studied sample (N=1176). In Hungary, 294,534 patients have above target HbA1c value out of 495,801 T2DM adults. The education-dependent positive association with majority of process indicators was not reflected in HbA1c, LDL-C, and blood pressure target achievements. The risk of microvascular complications and requirement of insulin treatment were higher among less educated. CONCLUSIONS: According to our observations, the education-independent target achievement for HbA1c and LDL-C is similar as, for blood pressure is less effective in Hungary than in Europe. PMID- 29326024 TI - Aerodynamic Characteristics of Syllable and Sentence Productions in Normal Speakers. AB - BACKGROUND: Aerodynamic measures of subglottic air pressure (Ps) and airflow rate (AFR) are used to select behavioral voice therapy versus surgical treatment for voice disorders. However, these measures are usually taken during a series of syllables, which differs from conversational speech. Repeated syllables do not share the variation found in even simple sentences, and patients may use their best rather than typical voice unless specifically instructed otherwise. This study examined the potential differences in estimated Ps and AFR in syllable and sentence production and their effects on a measure of vocal efficiency in normal speakers. METHODS: Prospective study. Measures of estimated Ps, AFR, and aerodynamic vocal efficiency (AVE) were obtained from 19 female and four male speakers ages 22-44 years with no history of voice disorders. Subjects repeated a series of /pa/ syllables and a sentence at comfortable effort level into a face mask with a pressure-sensing tube between the lips. RESULTS: AVE varies as a function of the speech material in normal subjects. Ps measures were significantly higher for the sentence-production samples than for the syllable production samples. AFR was higher during sentence production than syllable production, but the difference was not statistically significant. AVE values were significantly higher for syllable versus sentence productions. CONCLUSIONS: The results suggest that subjects increase Ps and AFR in sentence compared with syllable production. Speaking task is a critical factor when considering measures of AVE, and this preliminary study provides a basis for further aerodynamic studies of patient populations. PMID- 29326022 TI - The effects of repetitive transcranial magnetic stimulation on eating behaviors and body weight in obesity: A randomized controlled study. AB - BACKGROUND: Although some studies have reported significant reductions in food cravings following repetitive transcranial magnetic stimulation (rTMS), none have examined changes in body weight. OBJECTIVE: We conducted 2-week randomized, sham controlled, single-blind, parallel-group trial to examine the effect of rTMS on body weight in obese patients. METHODS: Sixty obese patients (body mass index [BMI] >=25 kg/m2) aged between 18 and 65 years were recruited. A total of 4 sessions of rTMS targeting the left dorsolateral prefrontal cortex (DLPFC) was provided over a period of 2 weeks, with a follow-up assessment conducted two weeks after treatment had finished. The primary outcome measure was weight change in kilograms from baseline to 4 weeks. Secondary endpoints included changes in anthropometric measures, cardiovascular risk factors, food intake, and appetite. RESULTS: Of the 60 volunteers, 57 completed the 4-week follow-up (29 in the TMS group and 28 in the sham treatment group). Participants in the rTMS group showed significantly greater weight loss from baseline following the 4 session of rTMS (p = 0.002). Consistent with weight loss, there was a significant reduction in BMI, fat mass and VAT at week 4 in the rTMS group compared with the control group (p < 0.05). After the 4 sessions of rTMS, the TMS group consumed fewer total kilocalories per day than the control group (p < 0.01). CONCLUSIONS: rTMS delivered to the left DLPFC was effective in decreasing food intake and facilitating weight loss in obese patients. The results of this study suggest that rTMS could be an effective treatment option for obesity. TRIAL REGISTRATION: Clinical trial registered with the Clinical Trials Tegistry at https://cris.nih.go.kr (KCT0001455). PMID- 29326025 TI - How Age and Frequency Impact the Thyroid Cartilages of Professional Singers. AB - OBJECTIVES/HYPOTHESIS: Young professional singers can easily reach very high pitches. In contrast, older singers often complain that they have to exert substantially more laryngopharyngeal force to reach the same high pitch compared with their earlier years. Various factors such as the property changes of the mucosa and ossification that impact the singing apparatus were suggested as explanations in the literature. The aim of this study was to analyze thyroid deformation-and thereby stiffness indirectly-during singing as a potential reason for this phenomenon. STUDY DESIGN: Prospective study. METHODS/DESIGN: We examined 44 female professional singers. High-resolution computed tomography scans were performed during singing at the fundamental mean speaking frequency and the first and second octaves above it. Digital Imaging and Communications in Medicine scan data were rendered and visualized 3-dimensionally using MIMICS software. By superimposition of the different 3-dimensional images, different positions of the thyroid were visualized. The distance from the posterior border of the thyroid was measured in all the examinations. RESULTS: All laryngeal cartilages could be three-dimensionally visualized. The magnitude of the thyroidal deformation significantly depends on pitch and significantly correlates with age (r2 = 0.7, P < 0.001). CONCLUSIONS: The thyroid cartilage is flexible and its formability is especially important during singing. At higher pitches, the cartilage was more deformed. The larynx in older singers showed less thyroid cartilage deformation. PMID- 29326027 TI - Considering quantity and quality of life in metastatic castration-naive prostate cancer. PMID- 29326026 TI - Treatment Outcomes of Bilateral Medialization Thyroplasty for Presbylaryngis. AB - BACKGROUND: Presbylaryngis is a common cause of dysphonia in elderly patients. Type I thyroplasty serves to improve glottic closure and vocal quality by correcting bowing. Although unilateral and injection-based procedures are well characterized in the treatment of broadly defined glottic insufficiency, there are insufficient outcomes data for bilateral medialization thyroplasty in the treatment of presbylaryngis. The aim of this study was to review the change in measures of vocal quality before and after bilateral medialization thyroplasty for presbylaryngis. STUDY DESIGN: This is a retrospective case series. METHODS: The records of 21 patients with presbylaryngis undergoing bilateral medialization thyroplasty between 2007 and 2014 were reviewed. Implant materials included silastic (n = 17) and hydroxyapatite (n = 4). Preoperative and postoperative comparison of vocal function was conducted using Voice Handicap Index, maximum phonation time, auditory-perceptual severity ratings, and blinded paired comparison of Consensus Auditory-Perceptual Evaluation of Voice and Visual perceptual stroboscopic ratings. Paired sample t tests were used to assess all outcome measures. RESULTS: Significant improvements were found in Voice Handicap Index scores (P < 0.007), maximum phonation time (P < 0.03), Consensus Auditory Perceptual Evaluation of Voice (P < 0.04), and clinician rating of vocal quality (P < 0.0001). Blinded raters noted a significant improvement in audio (P < 0.05) and videostroboscopic (P < 0.003) samples after surgery. There were no operative complications observed, and median hospital stay was one night. CONCLUSIONS: Patients with presbylaryngis demonstrated significant improvement in both objective and subjective measures of vocal quality following bilateral medialization thyroplasty. These data suggest that medialization thyroplasty is a safe option that warrants consideration in the treatment of presbylaryngis. PMID- 29326028 TI - A new era for treatment development in HER2-positive breast cancer. PMID- 29326029 TI - Neoadjuvant treatment with trastuzumab and pertuzumab plus palbociclib and fulvestrant in HER2-positive, ER-positive breast cancer (NA-PHER2): an exploratory, open-label, phase 2 study. AB - BACKGROUND: In the neoadjuvant setting, blockade of HER2 plus use of an aromatase inhibitor in patients with HER2-positive and oestrogen receptor (ER)-positive breast cancer leads to a pathological complete response in 21% of patients. Convergence of HER2 and ER signals on RB1 suggests that a combined pharmacological intervention directed to these targets could be synergistic. To test this approach, we combined palbociclib to block RB1, fulvestrant to block ER, and trastuzumab with pertuzumab to block HER2 in patients with HER2-positive, ER-positive breast cancer. METHODS: NA-PHER2 is a multicohort, open-label, exploratory, phase 2 study done at seven sites in Italy. Patients were eligible for the first cohort if they had previously untreated, histologically confirmed, unilateral, invasive, HER2-positive, ER-positive breast cancer and were suitable for neoadjuvant therapy. Patients were treated every 3 weeks with intravenous trastuzumab (8 mg/kg loading dose followed by 6 mg/kg) and intravenous pertuzumab (840 mg loading dose in the first cycle and then at 420 mg) for six cycles plus oral palbociclib (125 mg once a day for 21 days in a 4-week cycle) and intramuscular fulvestrant (500 mg) every 4 weeks for five cycles. The coprimary endpoints were change from baseline in Ki67 expression at 2 weeks of treatment and at surgery (16 weeks after treatment) and changes in apoptosis from baseline to surgery. Secondary endpoints were clinical objective response (according to modified Response Evaluation Criteria in Solid Tumors) and pathological complete response. All patients who met eligibility criteria were assessed for the primary and secondary endpoints. All patients who received at least one cycle of therapy were assessed for safety. This trial is registered with ClinicalTrials.gov, number NCT02530424. The trial is ongoing and two further cohorts are being enrolled. FINDINGS: Between May 20, 2015, and Feb 8, 2016, we enrolled 36 patients, of whom one was deemed ineligible for the study and five were found to be HER2-negative on retrospective analysis. Thus, 35 patients were included in safety analyses and 30 were assessed for the primary and secondary endpoints. At baseline, geometric mean Ki67 expression was 31.9 (SD 15.7), versus 4.3 (15.0) at week 2 (n=25; p<0.0001) and 12.1 (20.0) at time of surgery (n=22; p=0.013). The geometric mean for apoptosis was 1.2 (SD 0.3) at baseline versus 0.4 (0.4; p=0.019) at surgery. A clinical objective response immediately before surgery was achieved by 29 (97%; 95% CI 83-100) of 30 patients. At surgery, eight (27%; 95% CI 12-46) patients had a pathological complete response in breast and axillary nodes. The most frequent grade 3 adverse events were neutropenia (ten [29%]), diarrhoea (five [14%]), and stomatitis, increased alanine aminotransferase, and hypersensitivity reactions (one [3%] of each event). No grade 4 or serious adverse events were recorded in the study and there were no deaths. INTERPRETATION: The combination of palbociclib, fulvestrant, trastuzumab, and pertuzumab had a significant effect on the expression of Ki67 at 2 weeks and at surgery. Triple targeting of ER, HER2, and RB1 in HER2-positive and ER-positive breast cancer could be an effective chemotherapy-free treatment strategy. Further clinical testing and additional molecular characterisation is necessary, not only in hormone receptor-positive tumours but also in tumours without HER2 amplification. FUNDING: Pfizer and Roche. PMID- 29326030 TI - Patient-reported outcomes following abiraterone acetate plus prednisone added to androgen deprivation therapy in patients with newly diagnosed metastatic castration-naive prostate cancer (LATITUDE): an international, randomised phase 3 trial. AB - BACKGROUND: In the LATITUDE trial, addition of abiraterone acetate plus prednisone to androgen deprivation therapy (ADT) improved overall survival compared with placebos plus ADT in patients with newly diagnosed, high-risk, metastatic castration-naive prostate cancer. Understanding the effects of treatments on patient-reported outcomes (PROs) and health-related quality of life (HRQOL) is important for treatment decisions; therefore we aimed to analyse the effects of ADT plus abiraterone acetate and prednisone versus ADT plus placebos on PROs and HRQOL in patients in the LATITUDE study. METHODS: In the multicentre, international, randomised, phase 3 LATITUDE trial, eligible patients were aged 18 years or older, had newly diagnosed, high-risk, metastatic castration-naive prostate cancer confirmed by bone scan (bone metastases) or by CT or MRI (visceral, soft tissue, or nodal metastases), and an Eastern Cooperative Oncology Group (ECOG) performance status score of 2 or less. Patients from 235 clinical sites in 34 countries were randomly assigned (1:1) following a country-by-country scheme done by permuted block randomisation (with two blocks) and stratified by the presence of visceral metastasis and ECOG performance status to receive ADT plus 1000 mg oral abiraterone acetate and 5 mg oral prednisone once daily or ADT plus placebos. Selection of ADT, chemical or surgical, was at the investigator's discretion. The co-primary endpoints of the trial, overall survival and radiographic progression-free survival, have been published. PRO data were collected directly on electronic tablet devices at the clinical sites during screening and before any other visit procedure on day 1 of cycles 1-3, monthly during cycles 4-13, and then every 2 months until the end of treatment, by use of the Brief Pain Inventory-Short Form (BPI-SF), Brief Fatigue Inventory (BFI), Functional Assessment of Cancer Therapy Prostate scale (FACT-P), and the EuroQol (EQ-5D-5L) questionnaires. PRO analyses were an exploratory endpoint. Analyses were by intention-to-treat. Results from the first pre-planned interim analysis (Oct 31, 2016), are presented here. This ongoing study is registered with Clinicaltrials.gov, number NCT01715285. FINDINGS: Between Feb 12, 2013, and Dec 11, 2014, 1199 patients were randomly assigned: 597 to ADT plus abiraterone acetate and prednisone and 602 to ADT plus placebos. Median follow-up was 30.9 months (IQR 21.2-33.2) in the ADT plus abiraterone acetate and prednisone group versus 29.7 months (1.4-43.5; 16.1-31.3) in the ADT plus placebos group. Median time to worst pain intensity progression assessed by the BPI-SF score was not reached in either group (ADT plus abiraterone acetate and prednisone, not reached [95% CI not reached to not reached]; 25th percentile 11.07 months [95% CI 9.23 18.43]; ADT plus placebos group, not reached [95% CI not reached to not reached]; 25th percentile 5.62 [95% CI 4.63-7.39]; hazard ratio [HR] 0.63 [95% CI 0.52 0.77]; p<0.0001). Median time to worst fatigue intensity was not reached in either the ADT plus abiraterone acetate and prednisone group (not reached [95% CI not reached to not reached]; 25th percentile 18.4 months [95% CI 12.9-27.7]) or the ADT plus placebos group (not reached [95% CI not reached to not reached]; 25th percentile 6.5 months [95% CI 5.6-9.2]; HR 0.65 [95% CI 0.53-0.81], p=0.0001). Median time to deterioration of functional status assessed by the FACT P total score scale was 12.9 months (95% CI 9.0-16.6) in the ADT plus abiraterone acetate and prednisone group versus 8.3 months (7.4-11.1) in the ADT plus placebos group (HR 0.85 [95% CI 0.74-0.99]; p=0.032). INTERPRETATION: The addition of abiraterone acetate plus prednisone to ADT in patients with newly diagnosed, high-risk metastatic castration-naive prostate cancer improved overall PROs by consistently showing a clinical benefit in the progression of pain, prostate cancer symptoms, fatigue, functional decline, and overall HRQOL. FUNDING: Janssen Research & Development. PMID- 29326031 TI - Depressive symptoms and poorer performance on the Stroop Task are associated with weight gain. AB - OBJECTIVE: Executive function impairments and depression are associated with obesity but whether they predict weight gain is unclear. METHODS: Forty-six individuals (35m, 37+/-10y) completed the Stroop Task, Iowa Gambling Task (IGT), Wisconsin Card Sorting Task (WCST), Inventory for Depressive Symptomatology (IDS SR), Physical Anhedonia Scale (PAS), and Perceived Stress Scale (PSS). Body composition (DXA) and fasting glucose were also measured. Data from return visits were used to assess changes in weight. RESULTS: Poorer Stroop and WCST performance associated with higher BMI whereas poorer IGT and WCST performance associated with higher body fat (%; all p's<=0.05). Stroop interference (p=0.04; p=0.05) and IDS-SR (p=0.06; p=0.02) associated with increased BMI and weight gain (%/yr). In a multivariate linear model Stroop interference (beta=0.40, p<0.01; beta=0.35, p<0.01) and IDS-SR (beta=0.38, p<0.01; beta=0.37, p<0.01) independently predicted increased BMI and weight gain (%/yr) even after controlling for baseline weight and glucose levels. CONCLUSIONS: Poorer response inhibition and depressive symptoms, but not glucose levels, predicted weight gain. Evaluating neurocognitive and mood deficits could improve current treatment strategies for weight loss. Clinical Trial Registration Numbers NCT00523627, NCT00342732, NCT01224704. clinicaltrials.gov. PMID- 29326032 TI - The anxiolytic effect of Juniperus virginiana L. essential oil and determination of its active constituents. AB - Essential oil from Juniperus virginiana L. (eastern red cedarwood essential oil, CWO) has been used to relax mind and enhance comfort for medical purposes. Few reports showed its effect on anxiety behaviors in animal models. The present study investigated the anxiolytic effect of CWO using two anxiety tests in mice, then determined the major active constituents, examined the change of neurotransmitters after intraperitoneal (i.p.) administration. Analysis using GC/MS revealed that the CWO contained (-)-alpha-cedrene (28.11%), (+)-beta cedrene (7.81%), (-)-thujopsene (17.71%) and (+)-cedrol (24.58%). CWO at 400 800mg/kg increased the percentage of open arm entries and the percentage of the time spent in open arms in the elevated plus maze (EPM), suggesting that the oil has anxiolytic effect. However, it didn't show anxiolytic effect in the light dark box (LDB) test. Tests of the cedrene did not show anxiolytic effect in either test, but rather induced anxiety-related behaviors and inhibited the locomotor activity in EPM and LDB. Cedrol produced significant anxiolytic effect in both EPM and LDB tests at 400-1600mg/kg and 800-1600mg/kg, respectively. A more significant increase in locomotor activity was observed in cedrol at 200 1600mg/kg administration than CWO. CWO increased the 5-hydroxytryptamine (5-HT) concentration at 800mg/kg, whereas it didn't affect the dopamine (DA) concentration. Cedrol significantly reduced the DA level at 100-200mg/kg and elevated the 5-HT level at 1200-1600mg/kg. Moreover, it changed the ratio of 5 hydroxyindoleacetic acid/5-HT and 3, 4-dihydroxyphenyl acetic acid/DA at 1200 1600mg/kg. CWO and cedrol, in particular might act in an anxiolytic effect through the 5-HTnergic and DAnergic pathways. PMID- 29326033 TI - The contribution of gender differences in motor, behavioral and cognitive features to functional capacity, independence and quality of life in patients with Huntington's disease. AB - INTRODUCTION: Huntington's disease (HD) is a neurodegenerative autosomal dominant disorder affecting patients' motor, behavioral and cognitive domains leading to total dependency for activities of daily life. This study compares whether gender differences in motor, cognitive and behavioral symptoms affect function and how functional impairment affects quality of life (QoL). METHODS: We recruited 2191 subjects from the REGISTRY data base that provides personal data, HD age of onset, visit date, CAG mutation size, UHDRS and TFC scores from at least one visit. For 1166 participants SF-36 was also available. We calculated Spearman coefficients for correlations between particular symptomatic domains and functional scales, Fisher z-transform was used to test whether differences in correlations between genders were statistically significant. Simultaneous linear regression with least-square fit method was used to determine for how much variability in functional scales the particular symptomatic domains are responsible. ANOVA was used to look for QoL differences between TFC-stage based groups. Baseline statistics showed no significant differences between genders. RESULTS: Motor, cognitive and behavioral domains contributed significantly to function and independence. The motor domain contributed most followed by the cognitive and to a lesser degree by the behavioral domain. Motor symptoms correlated more with functional ability and influenced function variability more in women than in men. The decline in functional abilities correlated significantly with QoL decline. CONCLUSION: Motor symptoms have highest impact on function in HD, moreover these symptoms affect female function and independence more than males. Results indicate that symptomatic treatment targeting motor symptoms is needed to improve HD function and QoL. PMID- 29326034 TI - Hypoglycemia-induced parkinsonism with vasogenic basal ganglia lesion. PMID- 29326035 TI - Myoclonus in the elderly: A retrospective analysis of clinical and electrophysiological characteristics of patients referred to an electrophysiology laboratory. AB - BACKGROUND AND OBJECTIVE: Late-onset myoclonus in the elderly is mainly related to dementia or systemic disease. In this report, we aimed to investigate the clinical and electrophysiological features of patients with late-onset myoclonus. PATIENTS AND METHOD: We retrospectively assessed the medical records of patients who were referred to our electromyography laboratory. From these records, we included all patients who had myoclonus which started after the age of 60 years and in whom it was confirmed by polymyography. Demographic, clinical and electrophysiological findings were retrieved from the medical records. RESULTS: There were 63 patients with myoclonus. Types of myoclonus were spinal segmental (n = 2), cortical (n = 25) and probable cortico-subcortical involving upper extremities (n = 36). The latter two types displayed reflex sensitivity. Four patients (one with multifocal cortical myoclonus and others with probable cortico subcortical myoclonus) were diagnosed with probable CJD. Other diagnoses were Parkinsons's disease, Parkinson-plus or dementia syndromes, vascular parkinsonism, polyneuropathy, Celiac disease and post-hypoxic encephalopathy. Eleven patients did not have a specific diagnosis. CONCLUSIONS: Myoclonus in our cohort was mostly associated with parkinsonism. Cortical myoclonus is not rare in the elderly age group. Myoclonus in polyneuropathy is irregular, tremor-like with electrophysiological characteristics similar to the cortical subtype. PMID- 29326036 TI - Exploring young mothers' experiences with postpartum contraception in Ottawa: results from a multimethods qualitative study. AB - OBJECTIVES: Postpartum contraception plays a significant role in reducing subsequent pregnancy. However, young mothers in Ottawa, the capital of Canada, face various barriers when trying to access contraception after delivery. Through this project, we aimed to explore these barriers and understand the decision making processes of young mothers surrounding postpartum contraception. STUDY DESIGN: We conducted 10 semistructured in-depth interviews with young mothers living in Ottawa who had experienced a subsequent pregnancy within 24months of their first childbirth. In addition, we interviewed 10 key informants who work with teenage mothers. We audio-recorded and transcribed all interviews and analyzed them using inductive and deductive techniques. We used ATLAS.ti software to manage our data. RESULTS: Both young mothers and key informants report that teen mothers in Ottawa often do not use postpartum contraception or inconsistently use their chosen contraceptive method. Many factors, including cost, personal beliefs, personal priorities and knowledge, influence young mothers' decision making surrounding contraception. CONCLUSIONS: Our study suggests that when young mothers do not use postpartum contraception, the reasons are complex; for some, this is a choice, and for others, this is the result of systems-level, service delivery and information barriers. Supporting policies to ensure that a full range of contraceptive methods are available and affordable and developing educational programs in Ottawa that are sex-positive and nonjudgmental appear warranted. IMPLICATIONS: Ensuring that a full method mix, including contraceptive implants, is available to and affordable for young mothers in Ottawa could meet significant needs. Addressing existing systems level, service delivery and information barriers through supporting evidence based policies and sex-positive and nonjudgmental educational programs appears warranted. PMID- 29326037 TI - Experimental uptake and depuration of paralytic shellfish toxins in Southern Rock Lobster, Jasus edwardsii. AB - In October 2012, paralytic shellfish toxins (PST) were detected in the hepatopancreas of Southern Rock Lobsters (Jasus edwardsii) collected from the east coast of Tasmania, Australia. This resulted in the first commercial closure in Australia for this species. Questions were raised on how the toxins were transferred to the lobsters, how long the toxins would persist, whether PST contaminated hepatopancreas posed a risk to human health, and what management strategies could be applied. The aim of this study was to investigate whether PST contaminated mussels are a potential vector enabling toxin accumulation in J. edwardsii and to collect information on toxin uptake, distribution and depuration rates and toxin profiles under controlled experimental settings. Lobsters were fed mussels naturally contaminated with PST for a period of 28 days in an experimental setting; following this, lobsters were allocated to either fed or starved treatment groups. PST were not detected in the tail tissue of lobsters at any stage of the experiment. Lobster hepatopancreas contained mean levels of 2.4 mg STX.2HCl eq/kg after 28 days of uptake, although substantial variability in total toxicity was observed. The PST profile of the hepatopancreas was similar to that of the contaminated mussels used as feed. Significant differences were noted in the PST depuration rates between fed and starved treatment groups. The daily depuration rate for total PST was estimated to be 0.019 and 0.013 mg STX.2HCl eq/kg for the fed and starved treatment groups respectively using a constant-rate decay model. After 42 days of depuration, total PST (STX equivalents) levels in the hepatopancreas of all lobsters were below 0.8 mg STX.2HCl eq/kg, which represents the regulatory level applied to bivalves. This result indicates that long-term holding to depurate PST may potentially be used as a risk management tool. PMID- 29326038 TI - A qualitative meta-synthesis of emergency department staff experiences of violence and aggression. AB - INTRODUCTION: Patient and visitor violence or aggression against healthcare workers in the Emergency Department (ED) is a significant issue worldwide. This review synthesises existing qualitative studies exploring the first-hand experiences of staff working in the ED to provide insight into preventing this issue. METHOD: A meta-ethnographic approach was used to review papers. RESULTS: Four concepts were identified: 'The inevitability of violence and aggression'; 'Staff judgments about why they face violence and aggression'; 'Managing in isolation'; and 'Wounded heroes'. DISCUSSION: Staff resigned themselves to the inevitability of violence and aggression, doing this due to a perceived lack of support from the organisation. Staff made judgements about the reasons for violent incidents which impacted on how they coped and subsequently tolerated the aggressor. Staff often felt isolated when managing violence and aggression. Key recommendations included: Staff training in understanding violence and aggression and clinical supervision. CONCLUSION: Violence and aggression in the ED can often be an overwhelming yet inevitable experience for staff. A strong organisational commitment to reducing violence and aggression is imperative. PMID- 29326039 TI - A descriptive study of registered nurses' application of the triage scale RETTS(c); a Swedish reliability study. AB - BACKGROUND: From a patient safety perspective, it is of great importance that decision support systems such as triage scales are evidence based. In the most recent national survey, the majority of Swedish Emergency Departments (EDs) apply the Swedish triage scale known as the Medical Emergency Triage Treatment Scale (METTS), subsequently renamed the Rapid Emergency Triage Treatment Scale (RETTS(c)). Despite national widespread implementation, there has been limited research on METTS/RETTS(c). AIM: To determine the reliability of application by registered nurses of the RETTS(c) triage scale in two Swedish emergency departments. METHODS: In this prospective, cross-sectional study at two EDs, 46 written patient scenarios were triaged by 28 registered nurses (RNs). Data were analysed with descriptive statistics and Fleiss kappa (kappa). RESULTS: The RNs allocated 1281 final triage levels. There was concordance in seven (15%) of the scenarios, and dispersion over two or more triage levels in 39 (85%). Dispersion across the stable/unstable patient boundary was found in 21 (46%) scenarios. Fleiss kappa was 0.562, i.e. moderate agreement. CONCLUSION: The inability of the triage scale to distinguish between stable/unstable patients can lead to serious consequences from a patient safety perspective. No general pattern regarding concordance or dispersion was found. PMID- 29326040 TI - Downregulation of exocyst Sec10 accelerates kidney tubule cell recovery through enhanced cell migration. AB - Migration of surviving kidney tubule cells after sub-lethal injury, for example ischemia/reperfusion (I/R), plays a critical role in recovery. Exocytosis is known to be involved in cell migration, and a key component in exocytosis is the highly-conserved eight-protein exocyst complex. We investigated the expression of a central exocyst complex member, Sec10, in kidneys following I/R injury, as well as the role of Sec10 in wound healing following scratch injury of cultured Madin Darby canine kidney (MDCK) cells. Sec10 overexpression and knockdown (KD) in MDCK cells were used to investigate the speed of wound healing and the mechanisms underlying recovery. In mice, Sec10 decreased after I/R injury, and increased during the recovery period. In cell culture, Sec10 OE inhibited ruffle formation and wound healing, while Sec10 KD accelerated it. Sec10 OE cells had higher amounts of diacylglycerol kinase (DGK) gamma at the leading edge than did control cells. A DGK inhibitor reversed the inhibition of wound healing and ruffle formation in Sec10 OE cells. Conclusively, downregulation of Sec10 following I/R injury appears to accelerate recovery of kidney tubule cells through activated ruffle formation and enhanced cell migration. PMID- 29326041 TI - Role of the mRNA export factor Sus1 in oxidative stress tolerance in Candida albicans. AB - In eukaryotes, the nuclear export of mRNAs is essential for gene expression. However, little is known about the role of mRNA nuclear export in the important fungal pathogen, Candida albicans. In this study, we identified C. albicans Sus1, a nucleus-localized protein that is required for mRNA export. Interestingly, the sus1Delta/Delta displayed hyper-sensitivity to extracellular oxidative stress, enhanced ROS accumulation and severe oxidative stress-related cell death. More strikingly, although the mutant exhibited normal activation of the expression of oxidative stress response (OSR) genes, it had attenuated activity of ROS scavenging system, which may be attributed to the defect in OSR mRNA export in this mutant. In addition, the virulence of the sus1Delta/Delta was seriously attenuated. Taken together, our findings provide evidence that the mRNA export factor Sus1 plays an important role in oxidative stress tolerance and pathogenesis. PMID- 29326042 TI - Keratin 13 gene is epigenetically suppressed during transforming growth factor beta1-induced epithelial-mesenchymal transition in a human keratinocyte cell line. AB - Epithelial-mesenchymal transition (EMT) is a biological event in which epithelial cells lose their polarity and cell-cell adhesions and concomitantly acquire mesenchymal traits, and is thought to play an important role in pathological processes such as wound healing and cancer progression. In this study, we evaluated transforming growth factor (TGF)-beta1-treated human keratinocyte HaCaT cells as an in vitro model of EMT. HaCaT cells were changed into an elongated fibroblast-like morphology, which is indicative of EMT in response to TGF-beta1. Phalloidin staining demonstrated the formation of actin stress fibers in TGF beta1-treated cells. Quantitative RT-PCR analysis revealed that TGF-beta1 increased the mRNA levels of EMT transcription factors (SNAI2, TWIST1, and ZEB1) and mesenchymal markers (CDH2, VIM, and FN1), while it decreased the transcripts of epithelial phenotypic genes (CLDN1, OCLN, KRT5, KRT15, KRT13, and TGM1). Furthermore, we found that KRT13 was drastically suppressed through the reduction of RNA polymerase II occupancy of its promoter, which was accompanied by a decrease in active histone marks (H3K4me3 and H3K27ac) and an increase in a repressive mark (H3K27me3) during EMT. These findings indicate that the TGF-beta1 induced EMT program regulates a subset of epithelial and mesenchymal marker genes, and that KRT13 is transcriptionally suppressed through the modulation of the chromatin state at the KRT13 promoter in HaCaT cells. PMID- 29326043 TI - Upregulation of CDCA5 promotes gastric cancer malignant progression via influencing cyclin E1. AB - The cell division cycle associated 5(CDCA5) was reported to be associated with progression of several human cancers, however, its clinical significance and biological role still remain unknown in gastric cancer(GC). By analyzing The Cancer Genome Atlas(TCGA), we found CDCA5 was significantly upregulated in GC tissues compared to adjacent normal tissues. Tissue microarray(TMA) indicated upregulation of CDCA5 was significantly correlated with more advanced clinicopathological features, and acts as an independent risk factor for worse overall survival(OS) in GC patients. Moreover, silence of CDCA5 suppresses proliferation of GC cells by inducing G1-phase arrest via downregulating Cyclin E1(CCNE1). Our results demonstrate upregulation of CDCA5 promotes GC malignant progression, which may offer a potential prognostic and therapeutic strategy. PMID- 29326044 TI - Escherichia coli single-stranded DNA binding protein SSB promotes AlkB-mediated DNA dealkylation repair. AB - Repair of alkylation damage in DNA is essential for maintaining genome integrity. Escherichia coli (E.coli) protein AlkB removes various alkyl DNA adducts including N1-methyladenine (N1meA) and N3-methylcytosine (N3meC) by oxidative demethylation. Previous studies showed that AlkB preferentially removes N1meA and N3meC from single-stranded DNA (ssDNA). It can also remove N1meA and N3meC from double-stranded DNA by base-flipping. Notably, ssDNA produced during DNA replication and recombination, remains bound to E. coli single-stranded DNA binding protein SSB and it is not known whether AlkB can repair methyl adduct present in SSB-coated DNA. Here we have studied AlkB-mediated DNA repair using SSB-bound DNA as substrate. In vitro repair reaction revealed that AlkB could efficiently remove N3meC adducts inasmuch as DNA length is shorter than 20 nucleotides. However, when longer N3meC-containing oligonuleotides were used as the substrate, efficiency of AlkB catalyzed reaction was abated compared to SSB bound DNA substrate of identical length. Truncated SSB containing only the DNA binding domain could also support the stimulation of AlkB activity, suggesting the importance of SSB-DNA interaction for AlkB function. Using 70-mer oligonucleotide containing single N3meC we demonstrate that SSB-AlkB interaction promotes faster repair of the methyl DNA adducts. PMID- 29326046 TI - Multi-tissue partial volume quantification in multi-contrast MRI using an optimised spectral unmixing approach. AB - Multi-tissue partial volume estimation in MRI images is investigated with a viewpoint related to spectral unmixing as used in hyperspectral imaging. The main contribution of this paper is twofold. It firstly proposes a theoretical analysis of the statistical optimality conditions of the proportion estimation problem, which in the context of multi-contrast MRI data acquisition allows to appropriately set the imaging sequence parameters. Secondly, an efficient proportion quantification algorithm based on the minimisation of a penalised least-square criterion incorporating a regularity constraint on the spatial distribution of the proportions is proposed. Furthermore, the resulting developments are discussed using empirical simulations. The practical usefulness of the spectral unmixing approach for partial volume quantification in MRI is illustrated through an application to food analysis on the proving of a Danish pastry. PMID- 29326047 TI - Periodontal status of tooth adjacent to implant with peri-implantitis. AB - OBJECTIVES: To evaluate the relationship between peri-implantitis and the periodontal health of the adjacent tooth, the periodontal status of the teeth adjacent and contralateral to the implants with and without peri-implantitis. METHODS: Fifty-three subjects with existing dental implants and chronic periodontitis were examined in this cross-sectional study. Seventy implants were categorized into peri-implantitis (n = 42) and healthy/mucositis (n = 28) groups. The periodontal and peri-implant status, including probing depth (PD), clinical attachment level (CAL), and gingival recession (GR) were measured at 6 sites around the implants and the teeth adjacent and contralateral to those implants. In total 560 sites of the 70 teeth/implant sets, the association between the periodontal status at the near and away sites of the teeth (according to implant) and the implant status (without/with peri-implantitis) was examined. RESULTS: A significantly different mean PD (5.01 +/- 1.69, 4.42 +/- 1.8, 3.55 +/- 0.88, and 3.71 +/- 1.07 mm, p < 0.001) and CAL (6.02 +/- 2.36, 4.89 +/- 2.04, 4.35 +/- 1.11, and 4.35 +/- 1.5 mm, p < 0.001) were noted at the near sites of the teeth adjacent to the implants with peri-implantitis when compared with the away sites of adjacent and contralateral teeth and the near sites of contralateral teeth. With generalized estimating equation (GEE), the presence of peri-implantitis (beta = 1.041 mm, confidence interval = 0.646-1.435, and p < 0.001; beta = 0.857 mm, confidence interval = 0.279-1.434, and p < 0.004) and tooth location (beta = 0.65 mm, confidence interval = 0.4-0.9, and p < 0.001; beta = 0.682 mm, confidence interval = 0.34-1.024, and p < 0.001) were significantly associated with the values of the PD and CAL of the teeth. Moreover, the factor of examining sites (i.e. near and away sites of the tooth) was significantly associated with CAL (beta = 0.304 mm, confidence interval = 0.019-0.588, and p = 0.036) and GR (beta = 0.136 mm, confidence interval = 0.02-0.252, and p = 0.022). CONCLUSION: The existence of peri-implantitis, the tooth location, and the examining site are significantly associated with the periodontal measurements of the remaining teeth. CLINICAL SIGNIFICANCE: Peri-implant health is related to the periodontal health of the natural teeth close to the dental implant. PMID- 29326045 TI - ING5 inhibits cell proliferation and invasion in esophageal squamous cell carcinoma through regulation of the Akt/NF-kappaB/MMP-9 signaling pathway. AB - The inhibitor of growth 5 (ING5) is a new candidate tumor suppressor gene (TSG) of the ING family. So far, there have been many reports about its functions related to cancer development. However, the biological roles of ING5 in esophageal squamous cell carcinoma (ESCC) remain unclear. In the present study, we demonstrated that ING5 was lowly expressed in ESCC tissues and cell lines. Overexpression of ING5 inhibited ESCC cell proliferation and invasion in vitro as well as suppressed tumor growth and metastasis in vivo. We also found that overexpression of ING5 significantly decreased the levels of p-AKT, NF-kappaB and MMP-9 in ECA109 cells. Taken together, these findings demonstrated that ING5 inhibited cell proliferation and invasion in ESCC through regulation of the Akt/NF-kappaB/MMP-9 signaling pathway. Thus, ING5 might be considered a promising target for ESCC treatment. PMID- 29326049 TI - Quantitative CT Assessment of Gynecomastia in the General Population and in Dialysis, Cirrhotic, and Obese Patients. AB - RATIONALE AND OBJECTIVES: Gynecomastia is the benign enlargement of the male breast because of proliferation of the glandular component. To date, there is no radiological definition of gynecomastia and no quantitative evaluation of breast glandular tissues in the general male population. The aims of this study were to supply radiological-based measurements of breast glandular tissue in the general male population, to quantitatively assess the prevalence of gynecomastia according to age by decades, and to evaluate associations between gynecomastia and obesity, cirrhosis, and dialysis. MATERIALS AND METHODS: This retrospective study included 506 men who presented to the emergency department following trauma and underwent chest-abdominal computed tomography. Also included were 45 patients undergoing hemodialysis and 50 patients with cirrhosis who underwent chest computed tomography. The incidence and size of gynecomastia for all the study population were calculated. RESULTS: Breast tissue diameters of 22 mm, 28 mm, and 36 mm corresponded to 90th, 95th, and 97.5th cumulative percentiles of diameters in the general male population. Peaks of gynecomastia were shown in the ninth decade and in boys aged 13-14 years. Breast tissue diameter did not correlate with body mass index (r = -0.031). Patients undergoing hemodialysis and patients with cirrhosis had higher percentages (P < .0001) of breast tissue diameters above 22 mm, 28 mm, and 36 mm. CONCLUSIONS: Breast tissue diameter is a simple and reliable quantitative tool for the assessment of gynecomastia. This method provides the ability to determine the incidence of gynecomastia by age in the general population. Radiological gynecomastia should be defined as 22 mm, 28 mm, or 36 mm (90th, 95th, and 97.5th percentiles, respectively). Radiological gynecomastia is not associated with obesity, but is associated with cirrhosis and dialysis. PMID- 29326048 TI - Round robin study to evaluate the reconstructed human epidermis (RhE) model as an in vitro skin irritation test for detection of irritant activity in medical device extracts. PMID- 29326050 TI - A defined medium for Leishmania culture allows definition of essential amino acids. AB - Axenic culture of Leishmania is generally performed in rich, serum-supplemented media which sustain robust growth over multiple passages. The use of such undefined media, however, obscures proteomic analyses and confounds the study of metabolism. We have established a simple, defined culture medium that supports the sustained growth of promastigotes over multiple passages and which yields parasites that have similar infectivity to macrophages to parasites grown in a conventional semi-defined medium. We have exploited this medium to investigate the amino acid requirements of promastigotes in culture and have found that phenylalanine, tryptophan, arginine, leucine, lysine and valine are essential for viability in culture. Most of the 20 proteogenic amino acids promote growth of Leishmania promastigotes, with the exception of alanine, asparagine, and glycine. This defined medium will be useful for further studies of promastigote substrate requirements, and will facilitate future proteomic and metabolomic analyses. PMID- 29326051 TI - [Investigation methods to explore G protein-coupled receptor-regulated translatome]. AB - With the advent of next-generation sequencing technologies, identifying the translatome, which includes genome-wide ribosome-associated mRNAs, provides new opportunities to define faithfully the protein repertoire of a cell, as opposed to transcriptomic approaches. In addition, the role that extracellular signals such as hormonal modulations could play on the translatome remains to be deciphered. In particular, the regulation of the translatome by G protein-coupled receptors (GPCR) is still poorly described, albeit the trophic role that many receptors of this family play in their target cells. Here, we provide an overview of the current methods that are used to study the translatome, applied to the GPCR receptor family. PMID- 29326052 TI - Sensitivity of airway cough-related afferents is influenced by female sex hormones. AB - Chronic hypersensitivity cough syndrome affects mainly postmenopausal women; however, the pathogenesis of cough hypersensitivity in this demographic is not entirely understood. The role of sex hormones in cough has never been studied in detail; however, sex hormones seem to play an important role in the lung health of women. Our study was aimed to analyse the effect of female sex hormones (oestrogen - E2 and progesterone - Pg) on cough sensitivity measured by inhalation of capsaicin in follicular and luteal phases of menstrual cycle, characterized by significantly different concentrations of sex hormones. These data were compared with a matched group of women taking oral contraceptives. Cough sensitivity to capsaicin increased in luteal phase in subjects with normal menstrual cycle, and this functional change was not present in group with contraceptive pills. The cough sensitivity correlates with the Pg/E2 ratio, and relative lack of oestrogen in luteal phase is associated with higher cough sensitivity to capsaicin. PMID- 29326053 TI - Molecular analysis of circulating tumors cells: Biomarkers beyond enumeration. AB - Advances in our molecular understanding of cancer biology have paved the way to an expanding compendium of molecularly-targeted therapies, accompanied by the urgent need for biomarkers that enable the precise selection of the most appropriate therapies for individual cancer patients. Circulating biomarkers such as circulating tumor cells (CTCs) are poised to fill this need, since they are "liquid biopsies" that can be performed non-invasively and serially, and may capture the spectrum of spatial and temporal tumor heterogeneity better than conventional tissue biopsies. Increasing evidence suggests that moving beyond the enumeration of CTCs towards more sophisticated molecular analyses can provide actionable data that may predict and potentially improve clinical outcomes. In this review, we discuss the potential of molecular CTC analyses to serve as prognostic and predictive biomarkers to guide cancer therapy and early cancer detection. As technologies to capture and analyze CTCs continue to increase in sophistication, we anticipate that the potential clinical applications of CTCs will grow exponentially in the coming years. PMID- 29326054 TI - Size-based separation methods of circulating tumor cells. AB - Circulating tumor cells (CTCs) originate from the primary tumor mass and enter into the peripheral bloodstream. Compared to other "liquid biopsy" portfolios such as exosome, circulating tumor DNA/RNA (ctDNA/RNA), CTCs have incomparable advantages in analyses of transcriptomics, proteomics, and signal colocalization. Hence, CTCs hold the key to understanding the biology of metastasis and play a vital role in cancer diagnosis, treatment monitoring, and prognosis. Size-based enrichment features are prominent in CTC isolation. It is a label-free, simple and fast method. Enriched CTCs remain unmodified and viable for a wide range of subsequent analyses. In this review, we comprehensively summarize the differences of size and deformability between CTCs and blood cells, which would facilitate the development of technologies of size-based CTC isolation. Then we review representative size-/deformability-based technologies available for CTC isolation and highlight the recent achievements in molecular analysis of isolated CTCs. To wrap up, we discuss the substantial challenges facing the field, and elaborate on prospects. PMID- 29326056 TI - Population ageing and cardiovascular health: the case of Greece. PMID- 29326055 TI - A retrospective biochemical, molecular, and neurocognitive review of Saudi patients with argininosuccinic aciduria. AB - A retrospective review was compiled of 54 patients with argininosuccinic aciduria who were either identified through the Saudi National Newborn Screening Program or diagnosed clinically from January 2000 to December 2015. The duration of follow-up is from 2 to 19 years. The majority of patients (65%) originated from the central province of Saudi Arabia. The mean patient age at review was 10 years (2-19 years), 92% received an early diagnosis (<28 days of age) and most were symptomatic at the time of the diagnosis (n = 34). Normal ammonia at diagnosis was reported in 30% of patients, who were detected under the newborn metabolic screen (n = 5/16). A very high rate of consanguinity was observed in our cohort (98%). Developmental delay was the most detectable long term neurocognitive consequence followed by seizure disorder; 90.7% (n = 49) and 62.9% (n = 34) respectively. As expected, the severe neonatal form was the major presentation. The most common variant identified in this cohort was the previously reported founder c.1060C > T; p.(Gln354*) nonsense mutation in the ASL gene. In addition, the frequency of hyperammonemia was higher in patients homozygous for c.1060C > T; p.(Gln354*) compared to the other mutations. Interestingly, frequent thrombocytosis with the mean level of 717 * 109/L (range = 457-1169 * 109/L) was observed in 96% of the patients with no clear explanation. PMID- 29326058 TI - Sleep architecture is altered in the reserpine-induced fibromyalgia model in ovariectomized rats. AB - Fibromyalgia (FM) is a musculoskeletal chronic pain syndrome with various concomitant symptoms like sleep disorders. FM patients are mainly women and menopause might play an important role in the altered processing of somatosensory information. Adverse effects and moderated efficacy of drugs promote treatment discontinuation by patients. Animal models of FM report pain and depression-like behaviors, but none of them have explored sleep disturbance as possible marker in the preclinic diagnostic. The aim of this study was to investigate alterations of the sleep architecture in the reserpine (RES)-induced FM model in ovarectomized (OVX) rats. The behavioral thresholds of nociceptive response in the experimental FM were analyzed in a first block using muscle pressure, tactile response and allodynia to cold stimulus. In a second block, the sleep-wake cycle was examined in a polysomnographic study. Groups (n = 8) consisted in: (a) no treatment, (b) RES vehicle, (c) RES alone, (d) RES + vehicle of fluoxetine (FLX, antidepressant reference drug), and (e) RES + FLX. Our results demonstrated that RES induced pain-related behavior (50-70%) in OVX rats and altered sleep architecture by the increase of total wake time (38%), diminution of the no-REM stage (SWS-I 33% and SWS-II 76%), and abolition of the REM sleep, effects that were partially reverted in the presence of FLX. In conclusion, our results support the face validity of the RES-induced pain-related behavior as FM model showing nociceptive behavioral responses associated to sleep alterations observed as symptoms in FM patients; thus, these evidences substantiate its usefulness to look for alternatives of treatment for FM symptoms. PMID- 29326057 TI - Antidepressant effects of focused ultrasound induced blood-brain-barrier opening. AB - In many cases, hippocampal neurogenesis appears to be a hallmark of antidepressant treatments. One novel technique for inducing this type of neurogenesis is using focused ultrasound waves, in conjunction with circulating microbubbles, to open the blood-brain-barrier. The present experiment aimed to test whether this technique has antidepressant effects in a rodent model. Rats were subjected to 1, 2 or 3 weekly treatments of magnetic resonance-guided focused ultrasound in order to open the blood-brain-barrier in the hippocampal region. Before and after treatments, animals went through modified forced swim tests. 1 week after the final treatment, animals that received 2 weekly treatments showed antidepressant-like effects on behavioural measures in comparison to untreated controls. This was not the case for animals that received 1 or 3 weekly treatments. Effects had disappeared by 5 weeks following the first ultrasound treatment. These results suggest that focused ultrasound may be used for inducing short-term antidepressant effects. PMID- 29326060 TI - Ovulation is associated with the LH-dependent induction of pla2g4aa in zebrafish. AB - The effects of the preovulatory luteinizing hormone (LH) surge on the ovulatory process are mediated by prostaglandins (PGs), the synthesis of which involves prostaglandin synthetase and cytosolic phospholipase A2 (cPLA2). In our previous study, we systematically investigated the function of prostaglandin endoperoxide synthase (ptgs) genes on ovulation in zebrafish. However, the role of cPLA2 in ovulation was not determined in zebrafish. In this study, we investigated the function of cpla2alpha in PGs production and ovulation in periovulatory follicles. Our data showed that the expression of pla2g4aa increased during zebrafish folliculogenesis and the follicular layer was the primary region with expression of pla2g4aa. In addition, the expression of pla2g4aa was regulated by LH in vitro and in vivo. Furthermore, injection of AACOCF3, a specific inhibitor of cPLA2, significantly reduced ovarian PGs level and blocked hCG-induced ovulation. Collectively, these findings suggest that pla2g4aa is related to the ovulation process in zebrafish. PMID- 29326059 TI - Differential requirement of de novo Arc protein synthesis in the insular cortex and the amygdala for safe and aversive taste long-term memory formation. AB - Several immediate early genes products are known to be involved in the facilitation of structural and functional modifications at distinct synapses activated through experience. The IEG-encoded protein Arc (activity regulated cytoskeletal-associated protein) has been widely implicated in long-term memory formation and stabilization. In this study, we sought to evaluate a possible role for de novo Arc protein synthesis in the insular cortex (IC) and in the amygdala (AMY) during long-term taste memory formation. We found that acute inhibition of Arc protein synthesis through the infusion of antisense oligonucleotides administered in the IC before a novel taste presentation, affected consolidation of a safe taste memory trace (ST) but spared consolidation of conditioned taste aversion (CTA). Conversely, blocking Arc synthesis within the AMY impaired CTA consolidation but had no effect on ST long-term memory formation. Our results suggest that Arc-dependent plasticity during taste learning is required within distinct structures of the medial temporal lobe, depending on the emotional valence of the memory trace. PMID- 29326061 TI - Neuropathic pain in end-stage hip and knee osteoarthritis: differential associations with patient-reported pain at rest and pain on activity. AB - OBJECTIVE: We investigated whether pain at rest and pain on activity were differentially associated with neuropathic pain scores in individuals with end stage hip and knee OA. DESIGN: Study participants were 843 patients with hip or knee OA scheduled for total joint arthroplasty. In pre-surgery questionnaires, measures of socio-demographics, health status, medication use, neuropathic pain (painDETECT), pain at rest and pain on activity (WOMAC pain items), depression (HADS) and pain catastrophizing (PCS) were collected. Multivariable linear regression models were estimated for men and women separately to examine the association between neuropathic pain scores (outcome) and study measures, entered in blocks. RESULTS: Sample mean age was 65.1 years (SD: 9.6); 57.1% were women. Mean painDETECT scores were significantly higher (P <=? 0.001) for women (11.2 +/ 6.6 out of 38) than men (9.3 +/- 7.0), with 35.6% of women and 27.7% of men meeting cut-offs for possible or likely neuropathic pain. In the final regression model for women, the coefficients for both types of pain were statistically significant, although the coefficient for pain at rest was 1.6 times greater than that for pain on activity. For men, only pain at rest was significantly associated with neuropathic pain scores. CONCLUSIONS: Findings support that possible neuropathic pain is experienced by a notable proportion of patients with end-stage hip and knee OA and is more strongly associated with pain at rest than pain on activity, particularly in men. Clinical presentation of pain at rest may warrant more thorough evaluation for potential neuropathic pain and have implications for appropriate pain management. PMID- 29326062 TI - Functional effects of an interpenetrating polymer network on articular cartilage mechanical properties. AB - OBJECTIVE: Depletion of glycosaminoglycans (GAGs) and degradation of collagen network are early hallmarks of osteoarthritis (OA). Currently, there are no chondroprotective therapies that mitigate the loss of GAGs or effectively restore the collagen network. Recently, a novel polymeric cartilage supplement was described that forms a charged interpenetrating polymer network (IPN) reconstituting the hydrophilic properties of the extracellular matrix (ECM). To investigate the mechanism by which this hydrophilic IPN improves articular cartilage material properties, a finite element (FE) model is used to evaluate the IPN's effect on the fibrillar collagen network, nonfibrillar matrix, and interstitial fluid flow. METHODS: Bovine osteochondral plugs were degraded with chondroitinase ABC to selectively decrease GAG content. Samples were mechanically tested before and after IPN treatment using unconfined testing geometry and stress-relaxation protocol. Every measurement was modeled separately using a fibril-reinforced poroviscoelastic FE model. Measurement replication was achieved by optimizing the following model parameters: initial and strain-dependent fibril network modulus (Ef0, Efepsilon, respectively), nonfibrillar matrix modulus (Enf), initial permeability (k0) and strain-dependent permeability factor (M). RESULTS: Based on the FE model results, treatment of native and GAG depleted cartilage with the hydrophilic IPN increases the ECM stiffness and impedes fluid flow. The IPN did not alter the stiffness of fibrillary network. Cartilage permeability and the strain-dependent permeability factor decreased with increasing IPN w/v%. CONCLUSIONS: The IPN reconstitutes cartilage material properties primarily by augmenting the hydrophilic ECM. This reinforcement of the solid phase also affects the fluid phase reestablishing low permeability. PMID- 29326063 TI - Efficient purification of a highly active H-subunit of tyrosinase from Agaricus bisporus. AB - A highly-active tyrosinase (H subunit) isoform has been purified from a commercial crude extract of Agaricus bisporus by a specific, two step-hydrophobic chromatography cascade process based on the differential adsorption of the proteins from the extract to hydrophobic-functionalized supports. At first, commercial, crude tyrosinase from Agaricus bisporus (AbTyr) dissolved in aqueous media was added to octadecyl-Sepabeads matrix at 25 degrees C. Under these conditions, the support specifically adsorbed a protein with a molecular weight of 47 kDa which showed no tyrosinase activity. The known H subunit of tyrosinase from Agaricus bisporus (45 kDa, H-AbTyr) and another protein of 50 kDa were present in the supernatant. Sodium phosphate buffer was added to adjust the ionic strength of the solution up to 100 mM and Triton X-100 was added (final concentration of 0.07% v/v) to control the hydrophobicity effect for both proteins. This solution was offered again to fresh octadecyl-Sepabeads support, immobilizing selectively the H-AbTyr and leaving exclusively the 50 kDa protein as a pure sample in the supernatant. This tyrosinase isoform of 50 kDa was almost 4-fold more active than the known H-TyrAb, with a specific tyrosinase activity of more than 38,000 U/mg. PMID- 29326064 TI - Selection of the Best of 2017 in Pulmonary Hypertension. PMID- 29326065 TI - Hydrogen sulfide supplement attenuates the apoptosis of retinal ganglion cells in experimental glaucoma. AB - Glaucoma is a group of neurodegenerative eye diseases characterized by progressive impairment of visual function due to loss of retinal ganglion cells (RGC). As hydrogen sulfide (H2S) was reported to play a role in the process of glaucomatous neuropathy and improve RGC survival in experimental glaucoma, the authors aimed to investigate the anti-apoptosis effect of H2S supplement in a rat glaucoma model, and further tried to explore the involved factors in the neuroprotection. A chronic ocular hypertension (COH) rat model induced by intracameral injection of cross-linking hydrogel was employed to simulate glaucoma and 288 rats were subjected to experimental procedures in the present study. After 4 weeks of sodium hydrosulfide (NaHS) administration following COH induction, the apoptosis of RGC isolated from experimented rats as well as apoptosis of neurons in ganglion cell layer (GCL), intrinsic apoptotic pathway activity, mitochondrial function, glial activation, NF-kappaB pathway activity, NADPH oxidase activity, autophagy activity and TNF-alpha level in retina were evaluated. The results showed that H2S supplement effectively attenuated the apoptosis of RGC in experimental glaucoma, and the neuroprotection by H2S might correlate with preservation of mitochondrial function, attenuation of oxidative stress, suppression of glial activation, inhibition of inflammatory pathways and downregulation of autophagy. Our study indicated that H2S supplement resulted in significant neuroprotection through attenuation of RGC apoptosis which might be linked with multiple factors in experimental glaucoma. The new therapeutic strategy might potentially contribute to benefit glaucoma treatment, which is worth further concerns. PMID- 29326066 TI - Novel everolimus-loaded nanocarriers for topical treatment of murine experimental autoimmune uveoretinitis (EAU). AB - In the present study, therapeutic effect of topically applied everolimus (EV) loaded methoxy-poly(ethylene-glycol)-hexyl substituted poly (lactic acid) (mPEGhexPLA) nanocarriers on experimental autoimmune uveoretinitis (EAU) were investigated. EAU was induced in B10.RIII mice via immunization with human interphotoreceptor retinoid-binding protein peptide 161-180 (hIRBPp161-180) in complete Freund's adjuvant. Everolimus-loaded mPEGhexPLA (EV/mPEGhexPLA) nanocarriers were prepared by using a solvent evaporation method. On days 12-21 postimmunization (p.i.), the right eyes were treated five times daily either with 10 MUl of 0.5% everolimus formulation or PBS (control). The EAU score of the eyes was determined histologically. On day 21 p.i., the peripheral immune responses were measured in serum, cervical lymph nodes (LN), and spleens via hIRBPp161-180 specific serum antibodies, cytokine secretion (ELISA), lymphocyte proliferation, and FoxP3+ regulatory T cells (Treg; flow cytometry). Compared to the PBS-treated mice, unilateral topical everolimus treatment significantly reduced EAU severity in both eyes (p < .05). The treatment reduced the antigen (Ag)-specific hIRBPp161 180-induced proliferation (p < .05), IL-2, IL-17, and IFN-gamma secretion from cells isolated from the left and right cervical LN (p < .05). Under everolimus treatment, IL-10 secretion and CD4+CD25+FoxP3+ Treg frequency from cervical LN were enhanced. The proliferative response and cytokine secretion as well as the frequency of splenic Treg were almost unchanged. Topical administration of an everolimus formulation improved EAU in both eyes. The effect might also be related to systemic immunosuppressive effects, as several systemic cellular immune responses were influenced. PMID- 29326067 TI - Transcutaneous vagus nerve stimulation (tVNS) enhances divergent thinking. AB - Creativity is one of the most important cognitive skills in our complex and fast changing world. Previous correlative evidence showed that gamma-aminobutyric acid (GABA) is involved in divergent but not convergent thinking. In the current study, a placebo/sham-controlled, randomized between-group design was used to test a causal relation between vagus nerve and creativity. We employed transcutaneous vagus nerve stimulation (tVNS), a novel non-invasive brain stimulation technique to stimulate afferent fibers of the vagus nerve and speculated to increase GABA levels, in 80 healthy young volunteers. Creative performance was assessed in terms of divergent thinking (Alternate Uses Task) and convergent thinking tasks (Remote Associates Test, Creative Problem Solving Task, Idea Selection Task). Results demonstrate active tVNS, compared to sham stimulation, enhanced divergent thinking. Bayesian analysis reported the data to be inconclusive regarding a possible effect of tVNS on convergent thinking. Therefore, our findings corroborate the idea that the vagus nerve is causally involved in creative performance. Even thought we did not directly measure GABA levels, our results suggest that GABA (likely to be increased in active tVNS condition) supports the ability to select among competing options in high selection demand (divergent thinking) but not in low selection demand (convergent thinking). PMID- 29326068 TI - Slime mould: The fundamental mechanisms of biological cognition. AB - The slime mould Physarum polycephalum has been used in developing unconventional computing devices for in which the slime mould played a role of a sensing, actuating, and computing device. These devices treated the slime mould as an active living substrate, yet it is a self-consistent living creature which evolved over millions of years and occupied most parts of the world, but in any case, that living entity did not own true cognition, just automated biochemical mechanisms. To "rehabilitate" slime mould from the rank of a purely living electronics element to a "creature of thoughts" we are analyzing the cognitive potential of P. polycephalum. We base our theory of minimal cognition of the slime mould on a bottom-up approach, from the biological and biophysical nature of the slime mould and its regulatory systems using frameworks such as Lyon's biogenic cognition, Muller, di Primio-Lengelers modifiable pathways, Bateson's "patterns that connect" framework, Maturana's autopoietic network, or proto consciousness and Morgan's Canon. PMID- 29326069 TI - Positive correlation between rat brain glutamate concentrations and mitochondrial 2-oxoglutarate dehydrogenase activity. AB - Glutamate is a key metabolite and major excitatory neurotransmitter, degraded through transformation to 2-oxoglutarate which is further catabolized by 2 oxoglutarate dehydrogenase complex (OGDHC). Both the glutamate excitotoxicity and impaired OGDHC activity are hallmarks of neurodegeneration. This work quantifies a relationship between the brain OGDHC activity and glutamate levels, assessing its diagnostic value to characterize (patho)physiology. A moderate to strong positive correlation of the two parameters determined under varied physiological settings (brain regions, seasons, gender, pregnancy, rat line), is revealed. Mitochondrial impairment (OGDHC inhibition or acute hypobaric hypoxia) decreases the interdependence, even when the parameter means do not change significantly. Compared to the cortex, the cerebellum exhibits a lower inter-individual glutamate variation and a weaker glutamate-OGDHC interdependence. Specific metabolism of the brain regions is also characterized by a positive correlation between glutamate and gamma-aminobutyric acid (GABA) concentrations in the cortex but not in the cerebellum. In contrast, a strong positive correlation between glutamate and glutamine is present in both the cortex and cerebellum. The differences in metabolic correlations are in line with transcriptomics data which suggest that glutamate distribution between competitive pathways contributes to the brain-region-specific features of the interdependences of glutamate and OGDHC or GABA. PMID- 29326070 TI - Enhanced protein identification using graphite-modified MALDI plates for offline LC-MALDI-MS/MS bottom-up proteomics. AB - The use of offline liquid chromatography-matrix assisted laser desorption/ionization (LC-MALDI) tandem mass spectrometry (MS/MS) for bottom-up proteomics offers advantages in terms of cost, ease of use, and the time decoupled nature of the separation step and the mass analysis. A method was developed to improve the capabilities of LC-MALDI-MS/MS in terms of protein identification in a bottom-up proteomic workflow. Enhanced protein identification is achieved by an increase in the MALDI signal intensity of the precursor peptides brought about by coating the MALDI plate with a thin film of graphite powder. Using the Escherichia coli proteome, it is demonstrated that the graphite modified MALDI plates used in an offline LC-MALDI-MS/MS bottom-up protocol led to a 50-135% increase in the number of peptide identifications, and a concomitant 21%-105% increase in the number of proteins inferred. We identify factors that lead to improvements in peptide sequence identifications and in the number of unique proteins identified when compared to using an unmodified MALDI plate. These improvements are achieved using a low cost approach that it is easy to implement, requires no hardware/protocol modification, it is compatible with LC and adds no additional analysis time. PMID- 29326071 TI - A rapid fluorescent method for the real-time measurement of poly(ADP-ribose) polymerase 1 activity. AB - Poly(ADP-ribose) polymerase 1 (PARP1) is a key enzyme that regulates important cellular processes, including DNA repair. PARP1 binds to a DNA damage site and synthesizes poly(ADP-ribose) chains (PARs), which serve as a signal of DNA damage for other DNA repair enzymes. PARP1 is a recognized target for the development of anti-cancer drugs. In this work, a method is developed that makes it possible to investigate the complex formation of PARP1 with DNA as well as its dissociation by detecting the fluorescence anisotropy of this complex during the poly(ADP ribose) synthesis. The method allows investigation of the inhibition of PARP1 activity in the presence of its inhibitors. In this work, we demonstrated that PARP1 is activated by DNA duplexes containing a damage and a fluorophore at the 3'-end of one of the DNA duplex chains. The effects of the clinical inhibitor olaparib on the activity of PARP1 was studied. It was shown that olaparib has no influence on the binding of PARP1 to the model DNA structures used, but it significantly inhibits the poly(ADP-ribosyl)ation of PARP1. The proposed convenient method for the real-time determination of the PARP1 activity can be used to screen PARP1 inhibitors with the calculation of quantitative inhibition parameters. PMID- 29326072 TI - Novel 1,4-naphthoquinone derivatives induce apoptosis via ROS-mediated p38/MAPK, Akt and STAT3 signaling in human hepatoma Hep3B cells. AB - 1,4-Naphthoquinone and its derivatives have shown some efficacy as therapeutic compounds for cancer and inflammation, though their clinical application is limited by their side-effects. To reduce the toxicity of these compounds and optimize their effects, we synthesized two 1,4-naphthoquinone derivatives-2 butylsulfinyl- 1,4-naphthoquinone (BSNQ) and 2-octylsulfinyl-1,4-naphthoquinone (OSNQ)-and investigated their effects and underlying mechanisms in hepatocellular carcinoma cells. BSNQ and OSNQ decreased cell viability and significantly induced apoptosis, accompanied by the accumulation of reactive oxygen species (ROS). However, pretreatment with N-acetyl-l-cysteine, a specific ROS scavenger, blocked apoptosis. Western blot results indicated that BSNQ and OSNQ up-regulated the phosphorylation of p38 and JNK, and down-regulated the phosphorylation of ERK, Akt and STAT3, and that these effects were blocked by N-acetyl-l-cysteine. Furthermore, BSNQ and OSNQ suppressed tumor growth and modulated MAPK and STAT3 signaling in mouse xenografts without detectable effects on body weight or hematological parameters. These results indicate that BSNQ and OSNQ induce apoptosis in human hepatoma Hep3B cells via ROS-mediated p38/MAPK, Akt and STAT3 signaling pathways, suggesting that these 1,4-naphthoquinone derivatives may provide promising new anticancer agents to treat HCC. PMID- 29326074 TI - Overcoming the resistance mechanisms of Smoothened inhibitors. AB - Smoothened (Smo), the main transducer of the Hedgehog (Hh) signaling pathway, is a promising target for anticancer therapy. Although vismodegib and sonidegib have demonstrated effectiveness for the treatment of basal cell carcinoma (BCC), their clinical use has been associated with mutation-related drug resistance. In this review, we outline the resistance mechanisms of Smo inhibitors and point the way for future endeavors. We focus in particular on the development of second generation Smo inhibitors based on co-crystal structures, inhibition of downstream components, and the regulation of other interacting pathways or mediators that could compensate for the inhibitory activity of upstream inhibitors. PMID- 29326073 TI - Retinoic acid promotes stem cell differentiation and embryonic development by transcriptionally activating CFTR. AB - Retinoic acid (RA) plays a pivotal role in many cellular processes; however, the signaling mechanisms mediating the effect of RA are not fully understood. Here, we show that RA transcriptionally upregulates cystic fibrosis transmembrane conductance regulator (Cftr) by promoting the direct binding of its receptor RARalpha to Cftr promoter in mouse spermatogonia and embryonic stem (ES) cells. The RA/CFTR pathway is involved in the differentiation of spermatogonia and organogenesis during the embryo development of Xenopus laevis. Loss of CFTR by siRNA-mediated knockdown blunts the RA-induced spermatogonial differentiation. Overexpression of CFTR mimics the effect of RA on the induction of spermatogonial differentiation or restores the developmental defects induced by the knockdown of RARalpha in spermatogonial cells and Xenopus laevis. Analysis of the human database shows that the expression of CFTR positively correlates with RARalpha in brain tissues, stem cells as well as cancers, supporting the role of RA/CFTR pathway in various developmental processes in humans. Together, our study discovers an essential role of CFTR in mediating the RA-dependent signaling for stem cell differentiation and embryonic development. PMID- 29326075 TI - Use of CRISPR/Cas9 gene-editing tools for developing models in drug discovery. AB - Clustered regularly interspaced short palindromic repeat/CRISPR-associated 9 (CRISPR/Cas9) enables targeted genome engineering. The simplicity of this system, its facile engineering, and amenability to multiplex genes make it the system of choice for many applications. This system has revolutionized our ability to carry out gene editing, transcription regulation, genome imaging, and epigenetic modification. In this review, we discuss the discovery of CRISPR/Cas9, its mechanism of action, its application in medicine and animal model development, and its delivery. We also highlight how the CRISPR/Cas9 system can affect the next generation of drugs by accelerating the identification and validation of high-value targets. The generation of precision disease models through this system will provide a rapid avenue for functional drug screening. PMID- 29326076 TI - Phage-derived lysins as potential agents for eradicating biofilms and persisters. AB - Bacterial biofilms are highly resistant to the action of antibiotics. Presence of persisters, phenotypically resistant populations of bacterial cells, is thought to contribute toward recalcitrance of biofilms. The phage-derived lysins, by virtue of their ability to cleave the peptidoglycan of bacterial cells in an enzymatic manner, have the unique ability to kill dormant cells. Several lysins have shown potent antibiofilm activity in vitro. The fact that lysins have shown better efficacy than conventional drugs in animal models of endocarditis and other infections involving biofilms suggests that the lysins can potentially be developed against difficult-to-treat bacterial infections. PMID- 29326077 TI - Mechanism of nanoparticle-induced hypersensitivity in pigs: complement or not complement? AB - A recent study on nanoparticle-induced hypersensitivity reactions in pigs showed robust pulmonary intravascular macrophage clearance of Polybead(r) carboxylate microspheres in mediating the adverse cardiopulmonary distress, irrespective of the ability of these particles to activate the complement (C) system in vitro. Focusing on this observation, this article highlights the controversies in projecting in vitro C assay data to in vivo conditions and applying data on polystyrene particles to therapeutic nanopharmaceuticals. Based on overwhelming evidence of a role of anaphylatoxins in hypersensitivity reactions, the need to further explore the role of C activation in the reported and other reactions is highlighted. C-activation-related and C-independent pseudoallergies (CARPA and CIPA) can proceed simultaneously, as outlined by the 'double-hit' hypothesis. PMID- 29326078 TI - NCp7: targeting a multitask protein for next-generation anti-HIV drug development part 2. Noncovalent inhibitors and nucleic acid binders. AB - Nucleocapsid protein 7 (NCp7) represents a viable target not yet reached by the currently available antiretrovirals. It is a small and highly basic protein, which is essential for multiple stages of the viral replicative cycle, with its structure preserved in all viral strains, including clinical isolates. NCp7 can be inhibited covalently, noncovalently and by shielding the nucleic acid (NA) substrates of its chaperone activity. Although covalent NCp7 inhibitors have already been detailed in the first part of this review series, the focus here is based on noncovalent and NA-binder inhibitors and on the analysis of the NCp7 3D structure to deliver fruitful insights for future drug design strategies. PMID- 29326079 TI - Unlocking the full potential of open innovation in the life sciences through a classification system. AB - A common understanding of expectations and requirements is critical for boosting research-driven business opportunities in open innovation (OI) settings. Transparent communication requires common definitions and standards for OI to align the expectations of both parties. Here, we suggest a five-level classification system for OI models, reflecting the degree of openness. The aim of this classification system is to reduce contract negotiation complexity and times between two parties looking to engage in OI. Systematizing definitions and contractual terms for OI in the life sciences helps to reduce entry barriers and boosts collaborative value generation. By providing a contractual framework with predefined rules, science will be allowed to move more freely, thus maximizing the potential of OI. PMID- 29326080 TI - Light-triggerable formulations for the intracellular controlled release of biomolecules. AB - New therapies based on the use of biomolecules [e.g., proteins, peptides, and non coding (nc)RNAs] have emerged during the past few years. Given their instability, adverse effects, and limited ability to cross cell membranes, delivery systems are required to fully reveal their biological potential. Sophisticated nanoformulations responsive to light offer an excellent opportunity for the controlled release of these biomolecules, enabling the control of timing, duration, location, and dosage. In this review, we discuss the design principles for the delivery of biomolecules, in particular proteins and RNA-based therapeutics, by light-triggerable formulations. We further discuss the opportunities offered by these formulations in terms of endosomal escape, as well as their limitations. PMID- 29326081 TI - Macromolecule nanotherapeutics: approaches and challenges. AB - With the advent of technology, newer forms of drugs, such as proteins, DNA, and RNA, have entered mainstream product development. However, systemic delivery of macromolecules is limited by rapid blood clearance, poor stability in vivo, and inadequate uptake by cells. Nanoparticle (NP)-based delivery systems have emerged as suitable carriers for overcoming such pharmacokinetic limitations of macromolecule delivery. Nanocarriers, such as liposomes, provide protection for sensitive drug materials and also enhance the circulation half-life of therapeutics. Nanocarriers have also been shown to promote cellular uptake and the release of intact macromolecules in the cell. Besides liposomes, other nanocarriers, such as gold and iron oxide NPs, are also now being tested in clinical trials. PMID- 29326082 TI - Pharmaceutical nanocrystals: production by wet milling and applications. AB - Nanocrystals are regarded as an important nanoformulation approach exhibiting advantages of increased dissolution and saturation solubility with chemical stability and low toxicity. Nanocrystals are produced in the form of nanosuspensions using top-down (e.g., wet milling or high pressure homogenization) and bottom-up methods (e.g., antisolvent precipitation). Wet milling is a scalable method applicable to drugs with different physicochemical and mechanical properties. Nanocrystalline-based formulations, either as liquid nanosuspensions or after downstream processing to solid dosage forms, have been developed as drug delivery systems for various routes of administration (i.e., oral, parenteral, pulmonary, ocular, and dermal). In this review, we summarize and discuss the features, preparation methods, and therapeutic applications of pharmaceutical nanocrystals, highlighting their universality as a formulation approach for poorly soluble drugs. PMID- 29326084 TI - Impact of intracellular ionic strength on dimer binding in the NF-kB Inducing kinase. AB - Improper signaling of the nuclear factor-kappaB (NF-kappaB) pathway plays a critical role in many inflammatory disease states including cancer, stroke, and viral infections. Although the signaling pathways are known, how these molecular mechanisms respond to changes in the intracellular microenvironment such as pH, ionic strength, and temperature, remains elusive. Molecular dynamics simulations were employed to differentiate the structural dynamics of the NF-kappaB Inducing Kinase (NIK), a protein kinase responsible for invoking the non-canonical NF kappaB pathway, in its native and mutant form, and in the absence and presence of salt concentration in efforts to probe whether changes in the ionic environment stabilize or destabilize the NIK dimer. Analyses of structure-activity and conformational-activity relationships indicate that the protein-protein interactions are sensitive to changes in the ionic strength. Ligand binding pockets as well as regions between the oligomer interface either compress or expand, affecting both local and distal intermolecular interactions that result in stabilization or destabilization in the protein assembly. PMID- 29326083 TI - Ligandomics: a paradigm shift in biological drug discovery. AB - As productivity of pharmaceutical research and development (R&D) for small molecule drugs declines, the trend in drug discovery strategies is shifting towards biologics, which predominantly target secreted or cell surface proteins. Receptors and ligands are the most-valuable drug targets. In contrast to conventional approaches of discovering one ligand at a time, the emerging technology of ligandomics can systematically map disease-selective cellular ligands in the absence of molecular probes. Biologics targeting these ligands with disease selectivity have the advantages of high efficacy, minimal adverse effects, wide therapeutic indices, and low safety-related attrition rates. Therefore, ligandomics represents a paradigm shift to address the bottleneck of target discovery for biologics development. PMID- 29326085 TI - Frailty and leucocyte count are predictors of all-cause mortality and hospitalization length in non-demented institutionalized older women. AB - Alteration in the immune system such as the number of white blood cells count (WBC) has been associated with frailty syndrome but their role in institutionalized older individuals have been rarely investigated. We evaluated the relationships between white blood cell subtypes, geriatric assessment, depression and frailty syndrome based on the criteria of physical phenotype. In particular, we aimed to analyze by a two-year follow-up and prospective study the predictive value of alterations in WBC, frailty and functional impairment in terms of hospitalizations and all-cause mortality in institutionalized older women. There was a significant and inverse correlation between the frailty score and lymphocyte count at baseline but it did not display any predictive effect for the outcomes (hospitalizations and mortality). In contrast, monocytes count was significantly correlated with number of hospital stays and predicted hospitalizations in the follow-up. High frailty score directly and better functional status (Barthel score) inversely predicted mortality in the follow-up with an HR of 1.87 (95%CI: 1.04-3.35), and 0.97 (95% CI: 0.96-0.99) (p < .05 in both cases). Further investigation into the role of white blood cell subtypes in aging and its associated adverse outcomes in older adults is warranted. Physical phenotype of frailty besides general population, also predicted mortality in older institutionalized women and deserves specific intervention in this subgroup of older individuals. PMID- 29326086 TI - Reply: Pentraxin-3 and coronary artery disease. PMID- 29326087 TI - A multicomponent exercise program improves physical function in long-term nursing home residents: A randomized controlled trial. AB - To investigate the impact of a multicomponent exercise program on anthropometry, physical function, and physical activity on older adults living in long-term nursing homes (LTNH), we conducted a randomized controlled trial involving 112 participants aged 84.9 +/- 6.9 years. Participants were randomly assigned to an intervention (IG) or control group (CG). The IG participated in a 3-month multicomponent exercise intervention focused on strength, balance, stretching exercises, and walking recommendations. Subjects in the CG participated in routine activities. Analyses of outcome parameters were performed in the entire sample and in two subgroups, classified according to participants' physical function score at baseline. The group-by-time interaction, favoring the IG, was significant for the entire sample and for the participants in the low physical function subgroup for the following parameters: waist circumference, 30-s chair stand, arm-curl, 8-ft timed up-and-go, SPPB score, gait speed, and Berg scale (p < .05). In participants with higher physical function at baseline, significant group-by-time interaction was observed in the SPPB score and Berg scale (p < .05). When differences were analyzed within groups, the IG maintained or improved in all assessed parameters, while participants in the CG showed a marked decline. Our study showed that a multicomponent exercise program is effective for older people living in LTNH. This is especially relevant in those with lower physical function scores. The lower efficacy of the program in participants with better function might be due to the insufficient exercise demands of our intervention for more fit residents. Future studies should analyze the effects of programs with higher intensities in older people with intermediate to high physical function. PMID- 29326088 TI - Age effects of distinct immune checkpoint blockade treatments in a mouse melanoma model. AB - Cancer immunotherapy has shown remarkable recent progress. Immune checkpoint blocking antibodies have become the most successful anti-cancer agent class ever developed, with six distinct agents approved since 2011 for a wide variety of cancers. Although age is the biggest risk factor for cancer (aside from selected early-onset pediatric cancers), these agents were tested pre-clinically in young hosts, and there is remarkably little published on the effects of host age on treatment outcomes in pre-clinical studies or human clinical trials. The three principal immune checkpoints against which blocking antibodies have been FDA approved for human use are CTLA-4, PD-1 and PD-L1. We used a mouse model of transplantable, orthotopic B16 melanoma to test age effects of treatments with anti-CTLA-4, anti-PD-1 and anti-PD-L1 antibodies. All three agents were highly effective in treating young tumor-bearing hosts as expected. Anti-PD-L1 as a single agent had no effect on tumor growth in aged hosts, anti-CTLA-4 had detectable, modest effects and anti-PD-1 was essentially as effective in aged as in young hosts, the first single agent we have identified not to lose efficacy with age in this model. Other important differences in young versus aged hosts included lack of anti-CTLA-4-mediated depletion of intratumor regulatory T cells in aged hosts and poorer ability of all three agents to activate T cells in aged versus young hosts. Anti-CTLA-4 efficacy appeared to improve when combined with anti-PD-L1. Regulatory T cell depletion with FDA-approved denileukin diftitox did not improve treatment by any single agent. Aged mice tolerated treatments as well as young mice without obvious toxicities at equivalent doses. PMID- 29326089 TI - Markers of oxidative stress, skeletal muscle mass and function, and their responses to resistance exercise training in older adults. AB - BACKGROUND: Oxidative stress (OS) negatively affects skeletal muscle homeostasis in experimental models of ageing. However, little is known about the associations between circulating OS markers and parameters of muscle mass and function, and their responses to exercise training, in humans. METHODS: Maximal voluntary contraction (MVC, primary outcome) and isokinetic torque of the knee extensors at 30 degrees s-1 (MIT), muscle cross-sectional area (MCSA) and quality (MQ, secondary outcomes), and plasma concentrations of malondialdehyde (MDA, pro-OS), homocysteine (HCY, pro-OS), taurine (TAU, anti-OS), and protein sulphydryl groups (PSH, anti-OS) were measured in 27 healthy older males and 23 females at baseline and after an 18-week resistance exercise program, with or without a nutritional intervention (fish oil vs. placebo). RESULTS: After adjusting for age, glomerular filtration rate, and nutritional intervention, there were no significant correlations between baseline OS markers and muscle parameters, barring a positive association between TAU and MIT in females (r = 0.53, P = .035) and between MDA and MCSA in males (r = 0.69, P = .001). Training did not significantly change OS markers, except for a reduction in MDA in females (-0.27 MUmol/L, 95% CI -0.51 to -0.02, P = .034). In females, there were significant correlations between baseline MDA and exercise-induced changes in MVC (P = .018), baseline TAU and changes in MCSA (P = .026), and baseline HCY and changes in MCSA (P = .046) and MQ (P = .022). In males, baseline MDA was significantly associated with exercise-induced changes in MVC (P = .040). CONCLUSIONS: Plasma MDA, HCY, and TAU were significantly associated with baseline and/or exercise-induced changes in muscle mass and function in healthy older adults, primarily in females. Pending further confirmation in other populations, specific OS markers, particularly MDA, might predict muscle responses to resistance exercise programs in old age. PMID- 29326091 TI - Erratum: "Regulation of Chromatin Assembly and Cell Transformation by Formaldehyde Exposure in Human Cells". AB - [This corrects the article DOI: 10.1289/EHP1275.]. PMID- 29326090 TI - The Addition of Chemotherapy to Radiation Therapy Improves Survival in Elderly Patients with Stage III Non-Small Cell Lung Cancer. AB - INTRODUCTION: Elderly patients account for the majority of lung cancer diagnoses but are poorly represented in clinical trials. We evaluated the overall survival (OS) of elderly patients with stage III NSCLC treated with definitive radiation compared with that of patients treated with definitive chemoradiation. METHODS: We conducted a comparative effectiveness study of radiation therapy versus chemoradiation in elderly (>=70 years old) patients with stage III NSCLC not treated surgically diagnosed from 2003 to 2014; the patients were identified by using the National Cancer Database. Two cohorts were evaluated: patients (n = 5023) treated with definitive radiation (>=59.4 Gy) and patients (n = 18,206) treated with definitive chemoradiation. Chemoradiation was further defined as concurrent (radiation and chemotherapy started within 30 days of each other) or sequential (radiation started >30 days after chemotherapy). We compared OS between the treatment groups by using the Kaplan-Meier method and Cox proportional hazards regression before and after propensity score matching (PSM). RESULTS: Treatment with chemoradiation was associated with improved OS versus that with radiation both before PSM (hazard ratio [HR] = 0.66, 95% confidence interval [CI]: 0.64-0.68, p < 0.001) and after PSM (HR = 0.67, 95% CI: 0.64-0.70, p < 0.001). Relative to concurrent chemoradiation, sequential chemoradiation was associated with a 9% reduction in the risk for death (HR = 0.91, 95% CI: 0.85 0.96, p = 0.002). CONCLUSIONS: We found that definitive chemoradiation resulted in a survival advantage compared with definitive radiation in elderly patients. Sequential chemotherapy and radiation was superior to concurrent chemoradiation. Although prospective trials are needed, this analysis suggests that chemoradiation should be strongly considered for elderly patients and the optimal sequencing of chemotherapy and radiation remains an unanswered question for this patient population. PMID- 29326092 TI - Usage of an Exercise App in the Care for People With Osteoarthritis: User-Driven Exploratory Study. AB - BACKGROUND: Exercise has proven to reduce pain and increase quality of life among people living with osteoarthritis (OA). However, one major challenge is adherence to exercise once supervision ends. OBJECTIVE: This study aimed to identify mental and physical barriers and motivational and social aspects of training at home, and to test or further develop an exercise app. METHODS: The study was inspired from participatory design, engaging users in the research process. Data were collected through focus groups and workshops, and analyzed by systematic text condensation. RESULTS: Three main themes were found: competition as motivation, training together, and barriers. The results revealed that the participants wanted to do their training and had knowledge on exercise and pain but found it hard to motivate themselves. They missed the observation, comments, and encouragement by the supervising physiotherapist as well as their peers. Ways to optimize the training app were identified during the workshops as participants shared their experience. CONCLUSIONS: This study concludes that the long-term continuation of exercising for patients with OA could be improved with the use of a technology tailored to users' needs, including motivational and other behavioral factors. PMID- 29326093 TI - Face-to-Face Versus Mobile Versus Blended Weight Loss Program: Randomized Clinical Trial. AB - BACKGROUND: Conventional face-to-face weight loss and weight control programs are very labor intensive for both the patient and the provider. It is unclear to what extent conventional programs can be (partially) completed by mobile health (mHealth) apps. OBJECTIVE: The aim of this study was to compare the effectiveness of different weight loss programs using a combination of conventional and mobile programs among adults who are overweight (body mass index [BMI]>29 kg/m2). METHODS: A single-blinded randomized controlled trial among obese adults was performed from September 2015 to March 2016. The study took place in Leuven, Belgium. Of the 102 eligible (BMI >29 kg/m2) adults, 81 (79%) completed the study. The three intervention groups consisted of a conventional face-to-face weight loss program, a weight loss app program (app group), and a partial face-to face and partial app program (combi group). All intervention groups received the same advice from a dietician and a physical activity coach during a 12-week period. The control group did not receive any information during the same period. Primary outcomes were weight reduction (5% decrease of baseline weight in kg), BMI, metabolic risk factors, dietary pattern, and physical activity. RESULTS: Significant more participants in all three intervention groups lost at least 5% or more of their weight at baseline compared with the control group. No significant difference was found between the combi group and the conventional group. A trend was found that more participants in the combi group lost 5% or more compared with the app group (19%), P=.06. A significant time x group effect was found for BMI and metabolic risk factors, with the control group having the worst results and the combi group being significantly better with regard to BMI compared with the app group. No significant group x time effects were found for the intake of different food and drinks and moderate to vigorous physical activity (MVPA). CONCLUSIONS: The results of this study show that a conventional weight loss program could partially be completed with an mHealth program without affecting the effectiveness. TRIAL REGISTRATION: Clinicaltrials.gov NCT02595671; https://clinicaltrials.gov/ct2/show/NCT02595671 (Archived by WebCite at http://www.webcitation.org/6w1H0x1Q6). PMID- 29326094 TI - A Shared Decision-Making Tool to Prevent Substance Abuse: Protocol for a Randomized Controlled Trial. AB - BACKGROUND: Substance use disorder (SUD) affects over 20 million adults and costs over $700 billion annually in the United States. It is one the greatest health care challenges we face. OBJECTIVE: This research project seeks to enhance the standard practice of Screening, Brief Intervention, and Referral to Treatment (SBIRT) through a mobile solution easily incorporated into primary care that will promote shared decision making and increase referral and adherence to specialty care through continued follow-up care. METHODS: This research will conduct an Office of Management and Budget (OMB)-approved randomized controlled trial (RCT) in primary care and SUD specialty service providers. The RCT will recruit a total of 500 SUD patients. Recruited patients will be randomized into control and intervention arms. Both arms will take initial baseline and exit (30 days) surveys to evaluate self-reported substance use and specialty service utilization. The control arm patients will receive usual care. The intervention group patients will receive technology-enhanced SBIRT and a mobile follow-up program to track goals and substance use at home. The RCT tracks participants for 30 days after the primary care encounter. We will collect feedback from the patients during the 30 days and count the number of patients who use specialty care services in specialty care programs for tobacco, alcohol, and drug abuse (both from self-reporting and from the service providers). RESULTS: RCT and data collection are underway. We expect to report the data results in 2018. CONCLUSIONS: We expect that significantly more intervention group patients will receive specialty SUD care within 30 days following the SBIRT encounter at the primary care clinic compared to the control group. We also expect that the intervention group patients will report a greater reduction in substance use and a greater drop in Drug Abuse Screening Test and Addition Severity Index scores within 30 days. PMID- 29326095 TI - Development of a Maternal, Newborn and Child mHealth Intervention in Thai Nguyen Province, Vietnam: Protocol for the mMom Project. AB - BACKGROUND: Ethnic minority women (EMW) living in mountainous areas of northern Vietnam have disproportionately high infant and maternal mortality rates as a result of low maternal health knowledge, poverty, and remoteness from low capacity health centers. OBJECTIVE: The objective of this study was to describe the protocol for the development and evaluation of the mMom intervention, which is an integrated mobile health (mHealth) system designed to improve maternal and infant health knowledge, and behavior among women in remote areas of Thai Nguyen, Vietnam. METHODS: This project featured the following four phases: (1) development of an mHealth platform integrated into the existing health management information system in partnership with the provincial health department; (2) ethnographic fieldwork and intervention content development; (3) intervention piloting and implementation; and (4) evaluation of the intervention's impact on participants' maternal health knowledge, behavior, and interactions with the health system. RESULTS: The mMom project development process resulted in the following: (1) the successful development of the mMom system, including the mHealth platform hardware and integration, the intervention plan and content, and the monitoring and evaluation framework; (2) the piloting and implementation of the intervention as planned; and (3) the implementation of the monitoring and evaluation framework components. CONCLUSIONS: This protocol outlines the development of the mMom intervention and describes critical next steps in understanding the impact of the intervention on participants and the wider health system in Thai Nguyen province, Vietnam. PMID- 29326096 TI - Monitoring Freshman College Experience Through Content Analysis of Tweets: Observational Study. AB - BACKGROUND: Freshman experiences can greatly influence students' success. Traditional methods of monitoring the freshman experience, such as conducting surveys, can be resource intensive and time consuming. Social media, such as Twitter, enable users to share their daily experiences. Thus, it may be possible to use Twitter to monitor students' postsecondary experience. OBJECTIVE: Our objectives were to (1) describe the proportion of content posted on Twitter by college students relating to academic studies, personal health, and social life throughout the semester; and (2) examine whether the proportion of content differed by demographics and during nonexam versus exam periods. METHODS: Between October 5 and December 11, 2015, we collected tweets from 170 freshmen attending the University of California Los Angeles, California, USA, aged 18 to 20 years. We categorized the tweets into topics related to academic, personal health, and social life using keyword searches. Mann-Whitney U and Kruskal-Wallis H tests examined whether the content posted differed by sex, ethnicity, and major. The Friedman test determined whether the total number of tweets and percentage of tweets related to academic studies, personal health, and social life differed between nonexam (weeks 1-8) and final exam (weeks 9 and 10) periods. RESULTS: Participants posted 24,421 tweets during the fall semester. Academic-related tweets (n=3433, 14.06%) were the most prevalent during the entire semester, compared with tweets related to personal health (n=2483, 10.17%) and social life (n=1646, 6.74%). The proportion of academic-related tweets increased during final exam compared with nonexam periods (mean rank 68.9, mean 18%, standard error (SE) 0.1% vs mean rank 80.7, mean 21%, SE 0.2%; Z=-2.1, P=.04). Meanwhile, the proportion of tweets related to social life decreased during final exams compared with nonexam periods (mean rank 70.2, mean 5.4%, SE 0.01% vs mean rank 81.8, mean 7.4%, SE 0.01%; Z=-4.8, P<.001). Women tweeted more often than men during both nonexam (mean rank 95.8 vs 76.8; U=2876, P=.02) and final-exam periods (mean rank 96.2 vs 76.2; U=2832, P=.01). The percentages of academic-related tweets were similar between ethnic groups during nonexam periods (P>.05). However, during the final-exam periods, the percentage of academic tweets was significantly lower among African Americans than whites (chi24=15.1, P=.004). The percentages of tweets related to academic studies, personal health, and social life were not significantly different between areas of study during nonexam and exam periods (P>.05). CONCLUSIONS: The results suggest that the number of tweets related to academic studies and social life fluctuates to reflect real-time events. Student's ethnicity influenced the proportion of academic-related tweets posted. The findings from this study provide valuable information on the types of information that could be extracted from social media data. This information can be valuable for school administrators and researchers to improve students' university experience. PMID- 29326097 TI - Turning Good Intentions Into Actions by Using the Health Action Process Approach to Predict Adherence to Internet-Based Depression Prevention: Secondary Analysis of a Randomized Controlled Trial. AB - BACKGROUND: Many individuals engaging in Internet-based interventions fail to complete these treatments as intended. The processes responsible for treatment adherence in Internet-based interventions are still poorly understood. OBJECTIVE: The aim of this study was to investigate to what extent adherence in an Internet based intervention can be predicted by motivational and volitional factors outlined in the health action process approach (HAPA). METHODS: This study investigated motivational and volitional factors included in HAPA in a randomized controlled trial to predict treatment adherence of N=101 individuals with subclinical depression in the intervention group of a depression prevention intervention (GET.ON Mood Enhancer). Adherence was operationalized as the number of completed treatment modules. Using longitudinal structural equation modeling, HAPA variables (motivational, maintenance, and recovery self-efficacy, outcome expectancies, intention, and planning) were assessed at baseline and their associations with adherence 7 weeks later. RESULTS: Planning predicted adherence. Better planning was, in turn, associated with higher levels of maintenance self efficacy, and the latter significantly affected treatment adherence via planning. The other hypothesized direct associations were not significant. In total, the HAPA variables accounted for 14% of variance in treatment adherence. CONCLUSIONS: Planning emerged as the strongest predictor of treatment adherence in highly motivated participants in an Internet-based intervention out of all HAPA variables investigated. Findings are in line with the hypothesis that planning facilitates the translation of good intentions into actions. The findings imply that systematically fostering planning skills and maintenance self-efficacy prior to or during Internet-based interventions would help participants to successfully complete these treatments. TRIAL REGISTRATION: German Clinical Trials Register DRKS00005973; https://www.drks.de/drks_web/navigate.do? navigationId=trial.HTML&TRIAL_ID=DRKS00005973 (Archived by WebCite at http://www.webcitation.org/6uxCy64sy). PMID- 29326098 TI - Cognitive and Behavioral Skills Exercises Completed by Patients with Major Depression During Smartphone Cognitive Behavioral Therapy: Secondary Analysis of a Randomized Controlled Trial. AB - BACKGROUND: A strong and growing body of evidence has demonstrated the effectiveness of cognitive behavioral therapy (CBT), either face-to-face, in person, or as self-help via the Internet, for depression. However, CBT is a complex intervention consisting of several putatively effective components, and how each component may or may not contribute to the overall effectiveness of CBT is poorly understood. OBJECTIVE: The aim of this study was to investigate how the users of smartphone CBT use and benefit from various components of the program. METHODS: This is a secondary analysis from a 9-week, single-blind, randomized controlled trial that has demonstrated the effectiveness of adjunctive use of smartphone CBT (Kokoro-App) over antidepressant pharmacotherapy alone among patients with drug-resistant major depressive disorder (total n=164, standardized mean difference in depression severity at week 9=0.40, J Med Internet Res). Kokoro-App consists of three cognitive behavioral skills of self-monitoring, behavioral activation, and cognitive restructuring, with corresponding worksheets to fill in. All activities of the participants learning each session of the program and completing each worksheet were uploaded onto Kokoro-Web, which each patient could use for self-check. We examined what use characteristics differentiated the more successful users of the CBT app from the less successful ones, split at the median of change in depression severity. RESULTS: A total of 81 patients with major depression were allocated to the smartphone CBT. On average, they completed 7.0 (standard deviation [SD] 1.4) out of 8 sessions of the program; it took them 10.8 (SD 4.2) days to complete one session, during which they spent 62 min (SD 96) on the app. There were no statistically significant differences in the number of sessions completed, time spent for the program, or the number of completed self-monitoring worksheets between the beneficiaries and the nonbeneficiaries. However, the former completed more behavioral activation tasks, engaged in different types of activities, and also filled in more cognitive restructuring worksheets than the latter. Activities such as "test-drive a new car," "go to a coffee shop after lunch," or "call up an old friend" were found to be particularly rewarding. All cognitive restructuring strategies were found to significantly decrease the distress level, with "What would be your advice to a friend who has a similar problem?" found more helpful than some other strategies. CONCLUSIONS: The CBT program offered via smartphone and connected to the remote server is not only effective in alleviating depression but also opens a new avenue in gathering information of what and how each participant may utilize the program. The activities and strategies found useful in this analysis will provide valuable information in brush-ups of the program itself and of mobile health (mHealth) in general. TRIAL REGISTRATION: Japanese Clinical Trials Registry UMIN CTR 000013693; https://upload.umin.ac.jp/cgi-open-bin/ctr_e/ ctr_view.cgi?recptno=R000015984 (Archived by WebCite at http://www.webcitation.org/6u6pxVwik). PMID- 29326100 TI - Spend more on NHS or see services deteriorate further, hospital leaders warn. PMID- 29326101 TI - Pathways over Time: Functional Genomics Research in an Introductory Laboratory Course. AB - National reports have called for the introduction of research experiences throughout the undergraduate curriculum, but practical implementation at many institutions faces challenges associated with sustainability, cost, and large student populations. We describe a novel course-based undergraduate research experience (CURE) that introduces introductory-level students to research in functional genomics in a 3-credit, multisection laboratory class. In the Pathways over Time class project, students study the functional conservation of the methionine biosynthetic pathway between divergent yeast species. Over the five semesters described in this study, students (N = 793) showed statistically significant and sizable growth in content knowledge (d = 1.85) and in self reported research methods skills (d = 0.65), experimental design, oral and written communication, database use, and collaboration. Statistical analyses indicated that content knowledge growth was larger for underrepresented minority students and that growth in content knowledge, but not research skills, varied by course section. Our findings add to the growing body of evidence that CUREs can support the scientific development of large numbers of students with diverse characteristics. The Pathways over Time project is designed to be sustainable and readily adapted to other institutional settings. PMID- 29326099 TI - Interleukin-18 diagnostically distinguishes and pathogenically promotes human and murine macrophage activation syndrome. AB - Hemophagocytic lymphohistiocytosis (HLH) and macrophage activation syndrome (MAS) are life-threatening hyperferritinemic systemic inflammatory disorders. Although profound cytotoxic impairment causes familial HLH (fHLH), the mechanisms driving non-fHLH and MAS are largely unknown. MAS occurs in patients with suspected rheumatic disease, but the mechanistic basis for its distinction is unclear. Recently, a syndrome of recurrent MAS with infantile enterocolitis caused by NLRC4 inflammasome hyperactivity highlighted the potential importance of interleukin-18 (IL-18). We tested this association in hyperferritinemic and autoinflammatory patients and found a dramatic correlation of MAS risk with chronic (sometimes lifelong) elevation of mature IL-18, particularly with IL-18 unbound by IL-18 binding protein, or free IL-18. In a mouse engineered to carry a disease-causing germ line NLRC4T337S mutation, we observed inflammasome dependent, chronic IL-18 elevation. Surprisingly, this NLRC4T337S-induced systemic IL-18 elevation derived entirely from intestinal epithelia. NLRC4T337S intestines were histologically normal but showed increased epithelial turnover and upregulation of interferon-gamma-induced genes. Assessing cellular and tissue expression, classical inflammasome components such as Il1b, Nlrp3, and Mefv predominated in neutrophils, whereas Nlrc4 and Il18 were distinctly epithelial. Demonstrating the importance of free IL-18, Il18 transgenic mice exhibited free IL-18 elevation and more severe experimental MAS. NLRC4T337S mice, whose free IL 18 levels were normal, did not. Thus, we describe a unique connection between MAS risk and chronic IL-18, identify epithelial inflammasome hyperactivity as a potential source, and demonstrate the pathogenicity of free IL-18. These data suggest an IL-18-driven pathway, complementary to the cytotoxic impairment of fHLH, with potential as a distinguishing biomarker and therapeutic target in MAS. PMID- 29326103 TI - Understanding the Complex Relationship between Critical Thinking and Science Reasoning among Undergraduate Thesis Writers. AB - Developing critical-thinking and scientific reasoning skills are core learning objectives of science education, but little empirical evidence exists regarding the interrelationships between these constructs. Writing effectively fosters students' development of these constructs, and it offers a unique window into studying how they relate. In this study of undergraduate thesis writing in biology at two universities, we examine how scientific reasoning exhibited in writing (assessed using the Biology Thesis Assessment Protocol) relates to general and specific critical-thinking skills (assessed using the California Critical Thinking Skills Test), and we consider implications for instruction. We find that scientific reasoning in writing is strongly related to inference, while other aspects of science reasoning that emerge in writing (epistemological considerations, writing conventions, etc.) are not significantly related to critical-thinking skills. Science reasoning in writing is not merely a proxy for critical thinking. In linking features of students' writing to their critical thinking skills, this study 1) provides a bridge to prior work suggesting that engagement in science writing enhances critical thinking and 2) serves as a foundational step for subsequently determining whether instruction focused explicitly on developing critical-thinking skills (particularly inference) can actually improve students' scientific reasoning in their writing. PMID- 29326104 TI - Rethinking neoadjuvant chemotherapy for breast cancer. PMID- 29326105 TI - Chronic limb threatening ischaemia. PMID- 29326102 TI - Collectively Improving Our Teaching: Attempting Biology Department-wide Professional Development in Scientific Teaching. AB - Many efforts to improve science teaching in higher education focus on a few faculty members at an institution at a time, with limited published evidence on attempts to engage faculty across entire departments. We created a long-term, department-wide collaborative professional development program, Biology Faculty Explorations in Scientific Teaching (Biology FEST). Across 3 years of Biology FEST, 89% of the department's faculty completed a weeklong scientific teaching institute, and 83% of eligible instructors participated in additional semester long follow-up programs. A semester after institute completion, the majority of Biology FEST alumni reported adding active learning to their courses. These instructor self-reports were corroborated by audio analysis of classroom noise and surveys of students in biology courses on the frequency of active-learning techniques used in classes taught by Biology FEST alumni and nonalumni. Three years after Biology FEST launched, faculty participants overwhelmingly reported that their teaching was positively affected. Unexpectedly, most respondents also believed that they had improved relationships with departmental colleagues and felt a greater sense of belonging to the department. Overall, our results indicate that biology department-wide collaborative efforts to develop scientific teaching skills can indeed attract large numbers of faculty, spark widespread change in teaching practices, and improve departmental relations. PMID- 29326109 TI - Current recommendations for anticoagulant therapy in patients with valvular heart disease and atrial fibrillation: the ACC/AHA and ESC/EACTS Guidelines in Harmony...but not Lockstep! PMID- 29326108 TI - Short-term risk of cardiovascular readmission following a hypertensive disorder of pregnancy. AB - OBJECTIVE: Women with pregnancies complicated by hypertensive disorders of pregnancy (HDP) have increased long-term cardiovascular (CV) risk. We sought to determine if they demonstrate increased short-term CV risk. METHODS: Using administrative records, all hospital-based deliveries in Florida from 2004 to 2010 and subsequent readmission to any Florida hospital within 3 years of index delivery were identified. Deliveries and clinical diagnoses were determined using International Classification of Diseases, Ninth Revision, Clinical Modification codes. HDP included pregnancies complicated by gestational hypertension, pre eclampsia or eclampsia. Outcomes were CV readmission (acute myocardial infarction, stroke or heart failure), non-CV readmission and any readmission within 3 years of delivery excluding subsequent deliveries. Associations were determined using multivariate logistic regression. RESULTS: Among 1 452 926 records from delivering mothers of singleton infants (mean age 27.2+/-6.2 years; 52% white, 23% African American (AA), 18% Hispanic), there were 4054 CV and 259 252 non-CV readmissions. Women with HDP had higher CV readmission rates (6.4 vs 2.5/1000 deliveries; P<0.001). AA women had higher rates of CV readmission than whites or Hispanics (6.8 vs 1.7 vs 1.0/1000 deliveries, respectively; P<0.001). Women with HDP had higher multivariate risk of CV readmission (OR 2.41; 95% CI 2.08 to 2.80) and any readmission (OR 1.13; 95% CI 1.10 to 1.15). Compared with whites, AA women had higher risk for CV readmission (OR 3.60; 95% CI 3.32 to 3.90) after adjustment for HDP. CONCLUSION: Women with HDP had twice the risk of CV readmission within 3 years of delivery, with higher rates among AA women. More work is needed to explore preventive strategies for HDP-associated events. PMID- 29326106 TI - Risk of Hypoglycemia Following Hospital Discharge in Patients With Diabetes and Acute Kidney Injury. AB - OBJECTIVE: Hypoglycemia is common in patients with diabetes. The risk of hypoglycemia after acute kidney injury (AKI) is not well defined. The purpose of this study was to compare the risk for postdischarge hypoglycemia among hospitalized patients with diabetes who do and do not experience AKI. RESEARCH DESIGN AND METHODS: We performed a propensity-matched analysis of patients with diabetes, with and without AKI, using a retrospective national cohort of veterans hospitalized between 2004 and 2012. AKI was defined as a 0.3 mg/dL or 50% increase in serum creatinine from baseline to peak serum creatinine during hospitalization. Hypoglycemia was defined as hospital admission or an emergency department visit for hypoglycemia or as an outpatient blood glucose <60 mg/dL. Time to incident hypoglycemia within 90 days postdischarge was examined using Cox proportional hazards models. Prespecified subgroup analyses by renal recovery, baseline chronic kidney disease, preadmission drug regimen, and HbA1c were performed. RESULTS: We identified 65,151 propensity score-matched pairs with and without AKI. The incidence of hypoglycemia was 29.6 (95% CI 28.9-30.4) and 23.5 (95% CI 22.9-24.2) per 100 person-years for patients with and without AKI, respectively. After adjustment, AKI was associated with a 27% increased risk of hypoglycemia (hazard ratio [HR] 1.27 [95% CI 1.22-1.33]). For patients with full recovery, the HR was 1.18 (95% CI 1.12-1.25); for partial recovery, the HR was 1.30 (95% CI 1.23-1.37); and for no recovery, the HR was 1.48 (95% CI 1.36-1.60) compared with patients without AKI. Across all antidiabetes drug regimens, patients with AKI experienced hypoglycemia more frequently than patients without AKI, though the incidence of hypoglycemia was highest among insulin users, followed by glyburide and glipizide users, respectively. CONCLUSIONS: AKI is a risk factor for hypoglycemia in the postdischarge period. Studies to identify risk-reduction strategies in this population are warranted. PMID- 29326110 TI - Contemporary management and outcomes in congenitally corrected transposition of the great arteries. AB - Congenitally corrected transposition of the great arteries (ccTGA) can occur in isolation, or in combination with other structural cardiac anomalies, most commonly ventricular septal defect, pulmonary stenosis and tricuspid valve disease. Clinical recognition can be challenging, so echocardiography is often the means by which definitive diagnosis is made. The tricuspid valve and right ventricle are on the systemic arterial side of the ccTGA circulation, and are therefore subject to progressive functional deterioration. The natural history of ccTGA is also greatly influenced by the nature and severity of accompanying lesions, some of which require surgical repair. Some management strategies leave the right ventricle as the systemic arterial pump, but carry the risk of worsening heart failure. More complex 'double switch' repairs establish the left ventricle as the systemic pump, and include an atrial baffle to redirect venous return in combination with either arterial switch or Rastelli operation (if a suitable ventricular septal defect permits). Occasionally, the anatomic peculiarities of ccTGA do not allow straightforward biventricular repair, and Fontan palliation is a reasonable option. Regardless of the approach selected, late cardiovascular complications are relatively common, so ongoing outpatient surveillance should be established in an age-appropriate facility with expertise in congenital heart disease care. PMID- 29326107 TI - TCF7L2 Genetic Variation Augments Incretin Resistance and Influences Response to a Sulfonylurea and Metformin: The Study to Understand the Genetics of the Acute Response to Metformin and Glipizide in Humans (SUGAR-MGH). AB - OBJECTIVE: The rs7903146 T allele in transcription factor 7 like 2 (TCF7L2) is strongly associated with type 2 diabetes (T2D), but the mechanisms for increased risk remain unclear. We evaluated the physiologic and hormonal effects of TCF7L2 genotype before and after interventions that influence glucose physiology. RESEARCH DESIGN AND METHODS: We genotyped rs7903146 in 608 individuals without diabetes and recorded biochemical data before and after 1) one dose of glipizide (5 mg) on visit 1 and 2) a 75-g oral glucose tolerance test (OGTT) performed after administration of metformin 500 mg twice daily over 2 days. Incretin levels were measured in 150 of the 608 participants. RESULTS: TT risk-allele homozygotes had 1.6 mg/dL higher baseline fasting glucose levels and 2.5 pg/mL lower glucagon levels per T allele than carriers of other genotypes at baseline. In a subset of participants, the T allele was associated with higher basal glucagon-like peptide 1 (GLP-1) levels at visit 1 (beta = 1.52, P = 0.02 and beta = 0.96, P = 0.002 for total and active GLP-1, respectively), and across all points of the OGTT after metformin administration. Regarding drug response, the T allele was associated with a shorter time (beta = -7.00, P = 0.03) and a steeper slope (beta = 0.23, P = 0.04) to trough glucose levels after glipizide administration, and lower visit 2 fasting glucose level adjusted for visit 1 fasting glucose level (beta = -1.02, P = 0.04) and a greater decline in glucose level between visits (beta = -1.61, P = 0.047) after metformin administration. CONCLUSIONS: Our findings demonstrate that common variation at TCF7L2 influences acute responses to both glipizide and metformin in people without diabetes and highlight altered incretin signaling as a potential mechanism by which TCF7L2 variation increases T2D risk. PMID- 29326112 TI - Epidemiology of new-onset atrial fibrillation following coronary artery bypass graft surgery. AB - OBJECTIVES: Postoperative atrial fibrillation (AF) following coronary artery bypass graft surgery (CABG) is significantly associated with reduced survival, but poor characterisation and inconsistent definitions present barriers to developing effective prophylaxis and management. We sought to address this knowledge gap. METHODS: From 2002 to 2010, 11 239 consecutive patients without AF underwent isolated CABG at five sites. Clinical data collected for the Society of Thoracic Surgeons (STS) Database were augmented with details on AF detected via continuous in-hospital ECG/telemetry monitoring to assess new-onset post-CABG AF (adjusted for STS risk of mortality); time to first AF; durations of first and longest AF episodes; total in-hospital time in AF; number of in-hospital AF episodes; operative mortality; stroke; discharge in AF; and length of stay (LOS). RESULTS: Unadjusted incidence of new-onset post-CABG AF was 29.5%. Risk-adjusted incidence was 33.1% and varied little over time (P=0.139). Among 3312 patients with post-CABG AF, adjusted median time to first AF was 52 (IQR: 48-55) hours; mean (SD) duration of first and longest events were 7.2 (5.3,9.1) and 13.1 (10.4,15.9) hours, respectively, and adjusted median total time in AF was 22 (IQR: 18-26) hours. Adjusted rates of operative mortality, stroke and discharge in AF did not vary significantly over time (P=0.156, P=0.965 and P=0.347, respectively). LOS varied (P=0.035), but in no discernible pattern. CONCLUSIONS: Each year, ~800 000 people undergo CABG worldwide; >264 000 will develop post CABG AF. Onset is typically 2-3 days post-CABG and episodes last, on average, several hours. Effective prophylaxis and management is urgently needed to reduce associated risks of adverse outcomes. PMID- 29326113 TI - Acute heart failure with new-onset continuous murmur in a 26-year-old man. PMID- 29326111 TI - Low prevalence of ideal cardiovascular health in Peru. AB - BACKGROUND: The prevalence of and factors associated with ideal cardiovascular health (ICH) by sociodemographic characteristics in Peru is not well known. METHODS: The American Heart Association's ICH score comprised 3 ideal health factors (blood pressure, untreated total cholesterol and glucose) and 4 ideal health behaviours (smoking, body mass index, high physical activity and fruit and vegetable consumption). ICH was having 5 to 7 of the ideal health metrics. Baseline data from the Center of Excellence in Chronic Diseases, a prospective cohort study in adults aged >=35 years in 4 Peruvian settings, was used (n=3058). RESULTS: No one met all 7 of ICH metrics while 322 (10.5%) had <=1 metric. Fasting plasma glucose was the most prevalent health factor (72%). Overall, compared with ages 35-44 years, the 55-64 years age group was associated with a lower prevalence of ICH (prevalence ratio 0.54, 95% CI 0.40 to 0.74, P<0.001). Compared with those in the lowest tertile of socioeconomic status, those in the middle and highest tertiles were less likely to have ICH after adjusting for sex, age and education (P<0.001). CONCLUSION: There is a low prevalence of ICH. This is a benchmark for the prevalence of ICH factors and behaviours in a resource poor setting. PMID- 29326114 TI - Biomechanics of swimming in developing larval fish. AB - Most larvae of bony fish are able to swim almost immediately after hatching. Their locomotory system supports several vital functions: fish larvae make fast manoeuvres to escape from predators, aim accurately during suction feeding and may migrate towards suitable future habitats. Owing to their small size and low swimming speed, larval fish operate in the intermediate hydrodynamic regime, which connects the viscous and inertial flow regimes. They experience relatively strong viscous effects at low swimming speeds, and relatively strong inertial effects at their highest speeds. As the larvae grow and increase swimming speed, a shift occurs towards the inertial flow regime. To compensate for size-related limitations on swimming speed, fish larvae exploit high tail beat frequencies at their highest speeds, made possible by their low body inertia and fast neuromuscular system. The shifts in flow regime and body inertia lead to changing functional demands on the locomotory system during larval growth. To reach the reproductive adult stage, the developing larvae need to adjust to and perform the functions necessary for survival. Just after hatching, many fish larvae rely on yolk and need to develop their feeding systems before the yolk is exhausted. Furthermore, the larvae need to develop and continuously adjust their sensory, neural and muscular systems to catch prey and avoid predation. This Review discusses the hydrodynamics of swimming in the intermediate flow regime, the changing functional demands on the locomotory system of the growing and developing larval fish, and the solutions that have evolved to accommodate these demands. PMID- 29326115 TI - Understanding variation in metabolic rate. AB - Metabolic rate reflects an organism's capacity for growth, maintenance and reproduction, and is likely to be a target of selection. Physiologists have long sought to understand the causes and consequences of within-individual to among species variation in metabolic rates - how metabolic rates relate to performance and how they should evolve. Traditionally, this has been viewed from a mechanistic perspective, relying primarily on hypothesis-driven approaches. A more agnostic, but ultimately more powerful tool for understanding the dynamics of phenotypic variation is through use of the breeder's equation, because variation in metabolic rate is likely to be a consequence of underlying microevolutionary processes. Here we show that metabolic rates are often significantly heritable, and are therefore free to evolve under selection. We note, however, that 'metabolic rate' is not a single trait: in addition to the obvious differences between metabolic levels (e.g. basal, resting, free-living, maximal), metabolic rate changes through ontogeny and in response to a range of extrinsic factors, and is therefore subject to multivariate constraint and selection. We emphasize three key advantages of studying metabolic rate within a quantitative genetics framework: its formalism, and its predictive and comparative power. We make several recommendations when applying a quantitative genetics framework: (i) measuring selection based on actual fitness, rather than proxies for fitness; (ii) considering the genetic covariances between metabolic rates throughout ontogeny; and (iii) estimating genetic covariances between metabolic rates and other traits. A quantitative genetics framework provides the means for quantifying the evolutionary potential of metabolic rate and why variance in metabolic rates within populations might be maintained. PMID- 29326116 TI - Behavioural responses to infrasonic particle acceleration in cuttlefish. AB - Attacks by aquatic predators generate frontal water disturbances characterised by low-frequency gradients in pressure and particle motion. Low-frequency hearing is highly developed in cephalopods. Thus, we examined behavioural responses in juvenile cuttlefish to infrasonic accelerations mimicking main aspects of the hydrodynamic signals created by predators. In the experimental set-up, animals and their surrounding water moved as a unit to minimise lateral line activation and to allow examination of the contribution by the inner ear. Behavioural responses were tested in light versus darkness and after food deprivation following a 'simulated' hunting opportunity. At low acceleration levels, colour change threshold at 3, 5 and 9 Hz was 0.028, 0.038 and 0.035 m s-2, respectively. At higher stimulus levels, jet-propulsed escape responses thresholds in daylight were 0.043, 0.065 and 0.069 m s-2 at 3, 5 and 9 Hz, respectively, and not significantly different from the corresponding darkness thresholds of 0.043, 0.071 and 0.064 m s-2 In a simulated hunting mode, escape thresholds were significantly higher at 3 Hz (0.118 m s-2) but not at 9 Hz (0.134 m s-2). Escape responses were directional, and overall followed the direction of the initial particle acceleration, with mean escape angles from 313 to 33 deg for all three experiments. Thus, in the wild, particle acceleration might cause escape responses directed away from striking predators but towards suction-feeding predators. We suggest that cuttlefish jet-propulsed escape behaviour has evolved to be elicited by the early hydrodynamic disturbances generated during predator encounters, and that the inner ear plays an essential role in the acoustic escape responses. PMID- 29326117 TI - Ideal Weyl points and helicoid surface states in artificial photonic crystal structures. AB - Weyl points are the crossings of linearly dispersing energy bands of three dimensional crystals, providing the opportunity to explore a variety of intriguing phenomena such as topologically protected surface states and chiral anomalies. However, the lack of an ideal Weyl system in which the Weyl points all exist at the same energy and are separated from any other bands poses a serious limitation to the further development of Weyl physics and potential applications. By experimentally characterizing a microwave photonic crystal of saddle-shaped metallic coils, we observed ideal Weyl points that are related to each other through symmetry operations. Topological surface states exhibiting helicoidal structure have also been demonstrated. Our system provides a photonic platform for exploring ideal Weyl systems and developing possible topological devices. PMID- 29326118 TI - Observation of bulk Fermi arc and polarization half charge from paired exceptional points. AB - The ideas of topology have found tremendous success in closed physical systems, but even richer properties exist in the more general open or dissipative framework. We theoretically propose and experimentally demonstrate a bulk Fermi arc that develops from non-Hermitian radiative losses in an open system of photonic crystal slabs. Moreover, we discover half-integer topological charges in the polarization of far-field radiation around the bulk Fermi arc. Both phenomena are shown to be direct consequences of the non-Hermitian topological properties of exceptional points, where resonances coincide in their frequencies and linewidths. Our work connects the fields of topological photonics, non-Hermitian physics, and singular optics, providing a framework to explore more complex non Hermitian topological systems. PMID- 29326119 TI - Association of mutations with morphological dysplasia in de novo acute myeloid leukemia without 2016 WHO Classification-defined cytogenetic abnormalities. AB - Despite improvements in our understanding of the molecular basis of acute myeloid leukemia (AML), the association between genetic mutations with morphological dysplasia remains unclear. In this study, we evaluated and scored dysplasia in bone marrow (BM) specimens from 168 patients with de novo AML; none of these patients had cytogenetic abnormalities according to the 2016 World Health Organization Classification. We then performed targeted sequencing of diagnostic BM aspirates for recurrent mutations associated with myeloid malignancies. We found that cohesin pathway mutations [q (FDR-adjusted P)=0.046] were associated with a higher degree of megakaryocytic dysplasia and STAG2 mutations were marginally associated with greater myeloid lineage dysplasia (q=0.052). Frequent megakaryocytes with separated nuclear lobes were more commonly seen among cases with cohesin pathway mutations (q=0.010) and specifically in those with STAG2 mutations (q=0.010), as well as NPM1 mutations (q=0.022 when considering the presence of any vs no megakaryocytes with separated nuclear lobes). RAS pathway mutations (q=0.006) and FLT3-ITD (q=0.006) were significantly more frequent in cases without evaluable erythroid cells. In univariate analysis of the 153 patients treated with induction chemotherapy, NPM1 mutations were associated with longer event-free survival (EFS) (P=0.042), while RUNX1 (P=0.042), NF1 (P=0.040), frequent micromegakaryocytes (P=0.018) and presence of a subclone (P=0.002) were associated with shorter EFS. In multivariable modeling, NPM1 was associated with longer EFS, while presence of a subclone and frequent micromegakaryocytes remained significantly associated with shorter EFS. PMID- 29326120 TI - Macrophage scavenger receptor SR-AI contributes to the clearance of von Willebrand factor. AB - Previously, we found that LDL-receptor related protein-1 on macrophages mediated shear stress-dependent clearance of von Willebrand factor. In control experiments, however, we observed that von Willebrand factor also binds to macrophages independently of this receptor under static conditions, suggesting the existence of additional clearance-receptors. In search for such receptors, we focused on the macrophage-specific scavenger-receptor SR-AI. von Willebrand factor displays efficient binding to SR-AI (half-maximum binding 14+/-5 nM). Binding is calcium-dependent and is inhibited by 72+/-4% in the combined presence of antibodies against the A1- and D4-domains. Association with SR-AI was confirmed in cell-binding experiments. In addition, binding to bone marrow derived murine SR-AI-deficient macrophages was strongly reduced compared to binding to wild-type murine macrophages. Following expression via hydrodynamic gene transfer, we determined ratios for von Willebrand factor-propeptide over von Willebrand factor-antigen, a marker of von Willebrand factor clearance. Propeptide/antigen ratios were significantly reduced in SR-AI-deficient mice compared to wild-type mice (0.6+/-0.2 versus 1.3+/-0.3; P<0.0001), compatible with a slower clearance of von Willebrand factor in SR-AI-deficient mice. Interestingly, mutants associated with increased clearance (von Willebrand factor/p.R1205H and von Willebrand factor/p.S2179F) had significantly increased binding to purified SR-AI and SR-AI expressed on macrophages. Accordingly, propeptide/antigen ratios for these mutants were reduced in SR-AI-deficient mice. In conclusion, we have identified SR-AI as a novel macrophage-specific receptor for von Willebrand factor. Enhanced binding of von Willebrand factor mutants to SR-AI may contribute to the increased clearance of these mutants. PMID- 29326121 TI - Modeling multiple myeloma-bone marrow interactions and response to drugs in a 3D surrogate microenvironment. AB - Multiple myeloma develops primarily inside the bone marrow microenvironment, that confers pro-survival signals and drug resistance. 3D cultures that reproduce multiple myeloma-bone marrow interactions are needed to fully investigate multiple myeloma pathogenesis and response to drugs. To this purpose, we exploited the 3D Rotary Cell Culture System bioreactor technology for myeloma bone marrow co-cultures in gelatin scaffolds. The model was validated with myeloma cell lines that, as assessed by histochemical and electron-microscopic analyses, engaged contacts with stromal cells and endothelial cells. Consistently, pro-survival signaling and also cell adhesion-mediated drug resistance were significantly higher in 3D than in 2D parallel co-cultures. The contribution of the VLA-4/VCAM1 pathway to resistance to bortezomib was modeled by the use of VCAM1 transfectants. Soluble factor-mediated drug resistance could be also demonstrated in both 2D and 3D co-cultures. The system was then successfully applied to co-cultures of primary myeloma cells-primary myeloma bone marrow stromal cells from patients and endothelial cells, allowing the development of functional myeloma-stroma interactions and MM cell long-term survival. Significantly, genomic analysis performed in a high-risk myeloma patient demonstrated that culture in bioreactor paralleled the expansion of the clone that ultimately dominated in vivo Finally, the impact of bortezomib on myeloma cells and on specialized functions of the microenvironment could be evaluated. Our findings indicate that 3D dynamic culture of reconstructed human multiple myeloma microenvironments in bioreactor may represent a useful platform for drug testing and for studying tumor-stroma molecular interactions. PMID- 29326122 TI - Gfi1b: a key player in the genesis and maintenance of acute myeloid leukemia and myelodysplastic syndrome. AB - Differentiation of hematopoietic stem cells is regulated by a concert of different transcription factors. Disturbed transcription factor function can be the basis of (pre)malignancies such as myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML). Growth factor independence 1b (Gfi1b) is a repressing transcription factor regulating quiescence of hematopoietic stem cells and differentiation of erythrocytes and platelets. Here, we show that low expression of Gfi1b in blast cells is associated with an inferior prognosis of MDS and AML patients. Using different models of human MDS or AML, we demonstrate that AML development was accelerated with heterozygous loss of Gfi1b, and latency was further decreased when Gfi1b was conditionally deleted. Loss of Gfi1b significantly increased the number of leukemic stem cells with upregulation of genes involved in leukemia development. On a molecular level, we found that loss of Gfi1b led to epigenetic changes, increased levels of reactive oxygen species, as well as alteration in the p38/Akt/FoXO pathways. These results demonstrate that Gfi1b functions as an oncosuppressor in MDS and AML development. PMID- 29326125 TI - Hazardous alcohol consumption among spouses or partners of military service personnel: a systematic review of the literature. AB - BACKGROUND: Alcohol misuse is particularly high among both the UK and US Armed Forces. As alcohol use among couples is associated, military spouses or partners may therefore be at a higher risk of acquiring hazardous drinking behaviours than people in relationships with other occupational groups. METHOD: A literature review using a systematic approach was undertaken in four medical databases and supplemented with hand searches of specialist publications and reference lists. The prevalence of hazardous alcohol consumption among military spouses or partners was estimated and potential sociodemographic and military factors associated with this outcome were identified. RESULTS: Nine papers met inclusion criteria, of which eight focused on female spouses or partners only. The limited evidence suggests hazardous alcohol consumption was not a common outcome among spouses or partners. None of the papers statistically compared the prevalence among spouses or partners to estimates from the general population and few reported associations with sociodemographic or military factors. Deployment abroad did not appear to be significantly associated with hazardous consumption, although increasing periods of separation from Service personnel may be associated with increased hazardous consumption among spouses or partners. CONCLUSION: Limited evidence was found concerning the prevalence of hazardous alcohol consumption among military spouses or partners or which sociodemographic and military factors might be associated with this outcome. The a dominance of US studies means applying the estimates of these outcomes to other nations must be undertaken with care due to differences in cultural attitudes to alcohol as well as differences between military structure and operations between the US and other nations. PMID- 29326123 TI - Tumor necrosis factor receptor signaling is a driver of chronic lymphocytic leukemia that can be therapeutically targeted by the flavonoid wogonin. AB - Chronic lymphocytic leukemia is a malignancy of mature B cells that strongly depend on microenvironmental factors, and their deprivation has been identified as a promising treatment approach for this incurable disease. Cytokine array screening of 247 chronic lymphocytic leukemia serum samples revealed elevated levels of tumor necrosis factor (TNF) receptor-1 which were associated with poor clinical outcome. We detected a microenvironment-induced expression of TNF receptor-1 in chronic lymphocytic leukemia cells in vitro, and an aberrantly high expression of this receptor in the proliferation centers of patients' lymph nodes. Stimulation of TNF receptor-1 with TNF-alpha enhanced nuclear factor kappa light-chain-enhancer of activated B cells (NFkappaB) activity and viability of chronic lymphocytic leukemia cells, which was inhibited by wogonin. The therapeutic effects of wogonin were analyzed in mice after adoptive transfer of EMU-T-cell leukemia 1 (TCL1) leukemic cells. Wogonin treatment prevented leukemia development when given early after transplantation. The treatment of full-blown leukemia resulted in the loss of the TNF receptor-1 on chronic lymphocytic leukemia cells and their mobilization to blood. Targeting TNF receptor-1 signaling is therefore proposed for the treatment of chronic lymphocytic leukemia. PMID- 29326124 TI - Bortezomib-based immunosuppression after reduced-intensity conditioning hematopoietic stem cell transplantation: randomized phase II results. AB - Aprior phase I/II trial of bortezomib/tacrolimus/methotrexate prophylaxis after human leukocyte antigen (HLA)-mismatched reduced intensity conditioning allogeneic hematopoietic stem cell transplantation documented low acute graft versus-host disease incidence, with promising overall and progression-free survival. We performed an open-label three-arm 1:1:1 phase II randomized controlled trial comparing grade II-IV acute graft-versus-host disease between conventional tacrolimus/methotrexate (A) versus bortezomib/tacrolimus/methotrexate (B), and versus bortezomib/sirolimus/tacrolimus (C), in reduced intensity conditioning allogeneic transplantation recipients lacking HLA-matched related donors. The primary endpoint was grade II-IV acute graft-versus-host disease incidence rate by day +180. One hundred and thirty-eight patients (A 46, B 45, C 47) with a median age of 64 years (range: 24-75), varying malignant diagnoses and disease risk (low 14, intermediate 96, high/very high 28) received 7-8/8 HLA-mismatched (40) or matched unrelated donor (98) grafts. Median follow up in survivors was 30 months (range: 14-46). Despite early immune reconstitution differences, day +180 grade II-IV acute graft-versus-host disease rates were similar (A 32.6%, B 31.1%, C 21%; P=0.53 for A vs B, P=0.16 for A vs C). The 2-year non-relapse mortality incidence was similar (A 14%, B 16%, C 6.4%; P=0.62), as were relapse (A 32%, B 32%, C 38%; P=0.74), chronic graft-versus-host disease (A 59%, B 60% C 55%; P=0.66), progression-free survival (A 54%, B 52%, C 55%; P=0.95), and overall survival (A 61%, B 62%, C 62%; P=0.98). Overall, the bortezomib-based regimens evaluated did not improve outcomes compared with tacrolimus/methotrexate therapy. clinicaltrials.gov Identifier: 01754389. PMID- 29326126 TI - One hundred years (and counting) of blast-associated traumatic brain injury. AB - Blast-associated traumatic brain injury (TBI) has become one of the signature issues of modern warfare and is increasingly a concern in the civilian population due to a rise in terrorist attacks. Despite being a recognised feature of combat since the introduction of high explosives in conventional warfare over a century ago, only recently has there been interest in understanding the biology and pathology of blast TBI and the potential long-term consequences. Progress made has been slow and there remain remarkably few robust human neuropathology studies in this field. This article provides a broad overview of the history of blast TBI and reviews the pathology described in the limitedscientific studies found in the literature. PMID- 29326127 TI - Skill sets required for the management of military head, face and neck trauma: a multidisciplinary consensus statement. AB - INTRODUCTION: The evolution of medical practice is resulting in increasing subspecialisation, with head, face and neck (HFN) trauma in a civilian environment usually managed by a combination of surgical specialties working as a team. However, the full combination of HFN specialties commonly available in the NHS may not be available in future UK military-led operations, necessitating the identification of a group of skill sets that could be delivered by one or more deployed surgeons. METHOD: A systematic review was undertaken to identify those surgical procedures performed to treat acute military head, face, neck and eye trauma. A multidisciplinary consensus group was convened following this with military HFN trauma expertise to define those procedures commonly required to conduct deployed, in-theatre HFN surgical combat trauma management. RESULTS: Head, face, neck and eye damage control surgical procedures were identified as comprising surgical cricothyroidotomy, cervico-facial haemorrhage control and decompression of orbital haemorrhage through lateral canthotomy. Acute in-theatre surgical skills required within 24 hours consist of wound debridement, surgical tracheostomy, decompressive craniectomy, intracranial pressure monitor placement, temporary facial fracture stabilisation for airway management or haemorrhage control and primary globe repair. Delayed in-theatre procedures required within 5 days prior to predicted evacuation encompass facial fracture fixation, delayed lateral canthotomy, evisceration, enucleation and eyelid repair. CONCLUSIONS: The identification of those skill sets required for deployment is in keeping with the General Medical Council's current drive towards credentialing consultants, by which a consultant surgeon's capabilities in particular practice areas would be defined. Limited opportunities currently exist for trainees and consultants to gain experience in the management of traumatic head, face, neck and eye injuries seen in a kinetic combat environment. Predeployment training requires that the surgical techniques described in this paper are covered and should form the curriculum of future military-specific surgical fellowships. Relevant continued professional development will be necessary to maintain required clinical competency. PMID- 29326128 TI - Idiopathic Ventricular Arrhythmias Originating From the Vicinity of the Communicating Vein of Cardiac Venous Systems at the Left Ventricular Summit. AB - BACKGROUND: The communicating vein (CV) between the great cardiac vein and small cardiac venous systems passes between the aortic and pulmonary annulus and is located in close association with the left ventricular summit (summit CV). METHODS AND RESULTS: Thirty-one patients with idiopathic ventricular arrhythmias (VAs) underwent mapping of the left ventricular summit by using a 2F microcatheter introduced into the summit CV with coronary sinus venographic guidance. Of these, 14 patients were found to have summit-CV VAs. The remaining 17 patients (control group) had VAs originating from the right ventricular outflow tract and the aortic cusps. In patients with summit-CV VAs, the earliest activation during VAs in the summit CV preceded QRS onset by 34.1+/-5.3 ms. The summit-CV VAs exhibited inferior axis, negative polarity in lead I, deeper QS wave in lead aVL than aVR, and nonspecific bundle branch block morphology with an R/S ratio in lead V1 of 0.67+/-0.33, which could be distinguishable from VAs originating from the right ventricular outflow tract and the right coronary cusp. Because of the inaccessibility of the summit CV to ablation catheter, ablation of summit-CV VAs was attempted at adjacent structures where an excellent pacemap was rarely obtained. Overall ablation success was achieved in 10 (71%) patients with summit VAs and 15 (88%) patients in control group (P=0.24). CONCLUSIONS: The myocardium near the summit CV can be the source of idiopathic VAs. Direct monitoring of the summit CV is helpful for identifying the site of origin and provides a landmark of the ablation target, which may facilitate ablation through adjacent structures. PMID- 29326129 TI - Machine Learning Algorithm Predicts Cardiac Resynchronization Therapy Outcomes: Lessons From the COMPANION Trial. AB - BACKGROUND: Cardiac resynchronization therapy (CRT) reduces morbidity and mortality in heart failure patients with reduced left ventricular function and intraventricular conduction delay. However, individual outcomes vary significantly. This study sought to use a machine learning algorithm to develop a model to predict outcomes after CRT. METHODS AND RESULTS: Models were developed with machine learning algorithms to predict all-cause mortality or heart failure hospitalization at 12 months post-CRT in the COMPANION trial (Comparison of Medical Therapy, Pacing, and Defibrillation in Heart Failure). The best performing model was developed with the random forest algorithm. The ability of this model to predict all-cause mortality or heart failure hospitalization and all-cause mortality alone was compared with discrimination obtained using a combination of bundle branch block morphology and QRS duration. In the 595 patients with CRT-defibrillator in the COMPANION trial, 105 deaths occurred (median follow-up, 15.7 months). The survival difference across subgroups differentiated by bundle branch block morphology and QRS duration did not reach significance (P=0.08). The random forest model produced quartiles of patients with an 8-fold difference in survival between those with the highest and lowest predicted probability for events (hazard ratio, 7.96; P<0.0001). The model also discriminated the risk of the composite end point of all-cause mortality or heart failure hospitalization better than subgroups based on bundle branch block morphology and QRS duration. CONCLUSIONS: In the COMPANION trial, a machine learning algorithm produced a model that predicted clinical outcomes after CRT. Applied before device implant, this model may better differentiate outcomes over current clinical discriminators and improve shared decision-making with patients. PMID- 29326131 TI - Computer Modeling: The Future of Cardiac Resynchronization Therapy Patient Selection? PMID- 29326130 TI - Inward Rectifier Potassium Channels (Kir2.x) and Caveolin-3 Domain-Specific Interaction: Implications for Purkinje Cell-Dependent Ventricular Arrhythmias. AB - BACKGROUND: In human cardiac ventricle, IK1 is mainly comprised Kir2.1, but Kir2.2 and Kir2.3 heterotetramers occur and modulate IK1. Long-QT syndrome-9 associated CAV3 mutations cause decreased Kir2.1 current density, but Kir2.x heterotetramers have not been studied. Here, we determine the effect of long-QT syndrome-9-CAV3 mutation F97C on Kir2.x homo- and heterotetramers and model associated arrhythmia mechanisms. METHODS AND RESULTS: Super-resolution microscopy, co-immunoprecipitation, cellular electrophysiology, on-cell Western blotting, and simulation of Purkinje and ventricular myocyte mathematical models were used. Kir2.x isoforms have unique subcellular colocalization in human cardiomyocytes and coimmunoprecipitate with Cav3. F97C-Cav3 decreased peak inward Kir2.2 current density by 50% (-120 mV; P=0.019) and peak outward by 75% (-40 mV; P<0.05) but did not affect Kir2.3 current density. FRET (Forster resonance energy transfer) efficiency for Kir2.2 with Cav3 is high, and on-cell Western blotting demonstrates decreased Kir2.2 membrane expression with F97C-Cav3. Cav3-F97C reduced peak inward and outward current density of Kir2.2/Kir2.1 or Kir2.2/Kir2.3 heterotetramers (P<0.05). Only Cav3 scaffolding and membrane domains co immunoprecipitation with Kir2.1 and Kir2.2 and Kir2.x-N-terminal Cav3 binding motifs are required for interaction. Mathematical Purkinje, but not ventricular, myocyte model incorporating simulated current reductions, predicts spontaneous delayed after-depolarization-mediated triggered activity. CONCLUSIONS: Kir2.x isoforms have a unique intracellular pattern of distribution in association with specific Cav3 domains and that critically depends on interaction with N-terminal Kir2.x Cav3-binding motifs. Long-QT syndrome-9-CAV3 mutation differentially regulates current density and cell surface expression of Kir2.x homomeric and heteromeric channels. Mathematical Purkinje cell model incorporating experimental findings suggests delayed after-depolarization-type triggered activity as a possible arrhythmia mechanism. PMID- 29326132 TI - Ventricular Arrhythmias Linked to the Left Ventricular Summit Communicating Veins: A New Mapping Approach for an Old Ablation Problem. PMID- 29326134 TI - Evaluation of estrogenic potential by herbal formula, HPC 03 for in vitro and in vivo. AB - HPC 03 is herbal formula that consists of extracts from Angelica gigas, Cnidium officinale Makino and Cinnamomum cassia Presl. The present study evaluated the estrogenic potential of HPC 03 by using in vitro and in vivo models. The regulatory mechanisms of HPC 03 in estrogen-dependent MCF-7 cells were assessed. HPC 03 induced the proliferation of estrogen receptor-positive MCF-7 cells, and the proliferation was blocked by the addition of the estrogen antagonist tamoxifen. The estrogen receptoralpha/beta luciferase activities were significantly increased by HPC 03 treatment, which also increased the mRNA expression of the estrogen-responsive genes Psen2, Pgr and Ctsd Also, we evaluated the ameliorative effects of HPC 03 on menopausal symptoms in ovariectomized rats. HPC 03 treatment in OVX rats significantly affected the uterine weight, increased the expression of estrogen-responsive genes Pgr and Psen2 in uterus, increased bone mineral density loss in the femur and inhibited body weight increase. Serum E2, collagen type 1 and osteocalcin were significantly increased, while serum LH, FSH and ALP were decreased compared with OVX rats. HPC 03 may be a promising candidate for the treatment of menopause, but further research is necessary to determine whether the observed effects also occur in humans. PMID- 29326136 TI - Using Correlative Properties of Neighboring Pixels to Improve Gray-White Differentiation in Pediatric Head CT Images. AB - BACKGROUND AND PURPOSE: A lower radiation dose can have a detrimental effect on the quality of head CT images. The aim of this study performed in a pediatric population was to test whether an image-processing algorithm (Correlative Image Enhancement) based on the correlation among intensities of neighboring pixels can improve gray-white differentiation in head CTs. MATERIALS AND METHODS: Sixty baseline head CT images with normal findings obtained from scans of 30 children were processed using Correlative Image Enhancement to produce corresponding enhanced images. Gray-white differentiation in baseline and enhanced images was assessed quantitatively by calculating the contrast-to-noise ratio and conspicuity in equivalent ROIs in gray and white matter. Two masked readers rated the images for visibility of gray-white differentiation on a 5-point Likert scale. Differences in both quantitative and qualitative measures of gray-white differentiation between baseline and enhanced images were tested for statistical significance. P values < .05 were considered significant. RESULTS: Image processing resulted in improvement in the contrast-to-noise ratio (from 1.86 +/- 0.94 to 2.26 +/- 1.00, P = .02) as well as conspicuity (from 37.28 +/- 11.56 to 46.4 +/- 11.5, P < .001). This was accompanied by improved subjective visibility of gray-white differentiation as reported by both readers (P < .01). CONCLUSIONS: Image processing using Correlative Image Enhancement had a beneficial effect on quantitative measures of gray-white differentiation. This translated into improved perception of gray-white differentiation by readers. Further studies are needed to assess the effect of such image processing on the detection of disease processes using head CTs. PMID- 29326135 TI - Isolation of human testicular cells and co-culture with embryonic stem cells. AB - Our overall goal is to create a three-dimensional human cell-based testicular model for toxicological and spermatogenesis studies. Methods to purify the major somatic testicular cells, namely Leydig cells (LCs), peritubular myoid cells (PCs) and Sertoli cells (SCs), from rats, mice and guinea pigs have been reported. In humans, the isolation of populations enriched for primary LCs, PCs or SCs also have described. One objective of this study was to determine if populations of cells enriched for all three of these cell types can be isolated from testes of single human donors, and we were successful in doing so from testes of three donors. Testes tissues were enzymatically digested, gravity sedimented and Percoll filtered to isolate populations enriched for LCs, PCs and SCs. LCs and PCs were identified by colorimetric detection of the expression of prototypical enzymes. Division of PCs and SCs in culture has been reported. We observed that primary human LCs could divide in culture by incorporation of 5 ethynyl-2'-deoxyuridine. SCs were identified and their functionality was demonstrated by the formation of tight junctions as shown by the expression of tight junction proteins, increased transepithelial electrical resistance, polarized secretion of biomolecules and inhibition of lucifer yellow penetration. Furthermore, we found that human SC feeder layers could facilitate germ cell progression of human embryonic stem cells (hESCs) by microarray analysis of gene expression. PMID- 29326137 TI - Expression Changes in Lactate and Glucose Metabolism and Associated Transporters in Basal Ganglia following Hypoxic-Ischemic Reperfusion Injury in Piglets. AB - BACKGROUND AND PURPOSE: The neonatal brain has active energy metabolism, and glucose oxidation is the major energy source of brain tissue. Lactate is produced by astrocytes and released to neurons. In the central nervous system, lactate is transported between neurons and astrocytes via the astrocyte-neuron lactate shuttle. The aim of this study was to investigate the regulatory mechanisms of energy metabolism in neurons and astrocytes in the basal ganglia of a neonatal hypoxic-ischemic brain injury piglet model. MATERIALS AND METHODS: A total of 35 healthy piglets (3-5 days of age; 1.0-1.5 kg) were assigned to a control group (n = 5) or a hypoxic-ischemic model group (n = 30). The hypoxic-ischemic model group was further divided into 6 groups according to the 1H-MR spectroscopy and PET/CT scan times after hypoxia-ischemia (0-2, 2-6, 6-12, 12-24, 24-48, and 48-72 hours; n = 5/group). 1H-MR spectroscopy data were processed with LCModel software. Maximum standard uptake values refer to the maximum standard uptake values for glucose (or FDG). The maximum standard uptake values of the basal ganglia-to occipital cortex ratio were analyzed. The expression levels of glucose transporters and monocarboxylate transporters were detected by immunohistochemical analysis. RESULTS: Lactate levels decreased after an initial increase, with the maximal level occurring around 2-6 hours following hypoxia ischemia. After hypoxia-ischemia, the maximum standard uptake values of the basal ganglia and basal ganglia/occipital cortex initially increased then decreased, with the maximum occurring at approximately 6-12 hours. The lactate and glucose uptake (basal ganglia/occipital cortex maximum standard uptake values) levels were positively correlated. The expression levels of glucose transporter-1 and glucose transporter-3 were positively correlated with the basal ganglia/occipital cortex. The expression levels of monocarboxylic acid transporter-2 and monocarboxylic acid transporter-4 were positively correlated with lactate content. CONCLUSIONS: The results indicate that lactate and glucose transporters have a synergistic effect on the energy metabolism of neurons and astrocytes following hypoxic-ischemic reperfusion brain injury. PMID- 29326133 TI - Lipid signaling to membrane proteins: From second messengers to membrane domains and adapter-free endocytosis. AB - Lipids influence powerfully the function of ion channels and transporters in two well-documented ways. A few lipids act as bona fide second messengers by binding to specific sites that control channel and transporter gating. Other lipids act nonspecifically by modifying the physical environment of channels and transporters, in particular the protein-membrane interface. In this short review, we first consider lipid signaling from this traditional viewpoint, highlighting innumerable Journal of General Physiology publications that have contributed to our present understanding. We then switch to our own emerging view that much important lipid signaling occurs via the formation of membrane domains that influence the function of channels and transporters within them, promote selected protein-protein interactions, and control the turnover of surface membrane. PMID- 29326138 TI - Cerebellar Hypoperfusion in Migraine Attack: Incidence and Significance. AB - BACKGROUND AND PURPOSE: Patients diagnosed with migraine with aura have an increased lifetime risk of ischemic stroke. It is not yet clear whether prolonged cortical hypoperfusion during an aura increases the immediate risk of cerebellar infarction because it may induce crossed cerebellar diaschisis and subsequent tissue damage. To address this question, we retrospectively analyzed potential relationships between cortical oligemia and cerebellar hypoperfusion in patients with migraine with aura and their potential relation to small infarct-like cerebellar lesions. MATERIALS AND METHODS: One hundred six migraineurs who underwent MR imaging, including DSC perfusion, were included in the study. In patients with apparent perfusion asymmetry, we used ROI analysis encompassing 18 infra- and supratentorial ROIs to account for differences in regional cerebral blood flow and volume. The presence of cerebellar hypoperfusion was calculated using an asymmetry index, with values of >10% being considered significant. RESULTS: We observed perfusion asymmetries in 23/106 patients, 22 in patients with migraine with aura (20.8%). Cerebellar hypoperfusion was observed in 12/23 patients (52.2%), and crossed cerebellar diaschisis, in 9/23 patients (39.1%) with abnormal perfusion. In none of the 106 patients were DWI restrictions observed during migraine with aura. CONCLUSIONS: Cerebellar hypoperfusion and crossed cerebellar diaschisis are common in patients with migraine with aura and cortical perfusion abnormalities. Crossed cerebellar diaschisis in migraine with aura may be considered a benign phenomenon because we observed no association with DWI restriction or manifest cerebellar infarctions, even in patients with prolonged symptom-related perfusion abnormalities persisting for up to 24 hours. PMID- 29326139 TI - Carotid Artery Wall Imaging: Perspective and Guidelines from the ASNR Vessel Wall Imaging Study Group and Expert Consensus Recommendations of the American Society of Neuroradiology. AB - Identification of carotid artery atherosclerosis is conventionally based on measurements of luminal stenosis and surface irregularities using in vivo imaging techniques including sonography, CT and MR angiography, and digital subtraction angiography. However, histopathologic studies demonstrate considerable differences between plaques with identical degrees of stenosis and indicate that certain plaque features are associated with increased risk for ischemic events. The ability to look beyond the lumen using highly developed vessel wall imaging methods to identify plaque vulnerable to disruption has prompted an active debate as to whether a paradigm shift is needed to move away from relying on measurements of luminal stenosis for gauging the risk of ischemic injury. Further evaluation in randomized clinical trials will help to better define the exact role of plaque imaging in clinical decision-making. However, current carotid vessel wall imaging techniques can be informative. The goal of this article is to present the perspective of the ASNR Vessel Wall Imaging Study Group as it relates to the current status of arterial wall imaging in carotid artery disease. PMID- 29326142 TI - Gut Bacteria Shape Therapeutic Response. AB - The composition of patients' gut microbiomes influences whether they will respond to anti-PD-1 therapy, according to a trio of recently published studies. One of the studies also found that using antibiotics can reduce treatment efficacy, presumably by killing important species of gut bacteria. Now researchers are investigating how these findings can be used to increase the proportion of patients who respond to checkpoint inhibitor therapy. PMID- 29326140 TI - Navigating the residency application process for lesbian, gay, bisexual, and transgender student pharmacists. PMID- 29326143 TI - Seven days in medicine: 3-9 January 2018. PMID- 29326144 TI - A New Secretory Peptide of Natriuretic Peptide Family, Osteocrin, Suppresses the Progression of Congestive Heart Failure After Myocardial Infarction. AB - RATIONALE: An increase of severe ischemic heart diseases results in an increase of the patients with congestive heart failure (CHF). Therefore, new therapies are expected in addition to recanalization of coronary arteries. Previous clinical trials using natriuretic peptides (NPs) prove the improvement of CHF by NPs. OBJECTIVE: We aimed at investigating whether OSTN (osteocrin) peptide potentially functioning as an NPR (NP clearance receptor) 3-blocking peptide can be used as a new therapeutic peptide for treating CHF after myocardial infarction (MI) using animal models. METHODS AND RESULTS: We examined the effect of OSTN on circulation using 2 mouse models; the continuous intravenous infusion of OSTN after MI and the OSTN-transgenic (Tg) mice with MI. In vitro studies revealed that OSTN competitively bound to NPR3 with atrial NP. In both OSTN-continuous intravenous infusion model and OSTN-Tg model, acute inflammation within the first week after MI was reduced. Moreover, both models showed the improvement of prognosis at 28 days after MI by OSTN. Consistent with the in vitro study binding of OSTN to NPR3, the OSTN-Tg exhibited an increased plasma atrial NP and C-type NP, which might result in the improvement of CHF after MI as indicated by the reduced weight of hearts and lungs and by the reduced fibrosis. CONCLUSIONS: OSTN might suppress the worsening of CHF after MI by inhibiting clearance of NP family peptides. PMID- 29326145 TI - Return to Work and Participation in Society After Out-of-Hospital Cardiac Arrest. AB - BACKGROUND: The aim of this study was to describe out-of-hospital cardiac arrest (OHCA) survivors' ability to participate in activities of everyday life and society, including return to work. The specific aim was to evaluate potential effects of cognitive impairment. METHODS AND RESULTS: Two hundred eighty-seven OHCA survivors included in the TTM trial (Target Temperature Management) and 119 matched control patients with ST-segment-elevation myocardial infarction participated in a follow-up 180 days post-event that included assessments of participation, return to work, emotional problems, and cognitive impairment. On the Mayo-Portland Adaptability Inventory-4 Participation Index, OHCA survivors (n=270) reported more restricted participation In everyday life and in society (47% versus 30%; P<0.001) compared with ST-segment-elevation myocardial infarction controls (n=118). Furthermore, 27% (n=36) of pre-event working OHCA survivors (n=135) compared with 7% (n=3) of pre-event working ST-segment elevation myocardial infarction controls (n=45) were on sick leave (odds ratio, 4.9; 95% confidence interval, 1.4-16.8; P=0.01). Among the OHCA survivors assumed to return to work (n=135), those with cognitive impairment (n=55) were 3* more likely (odds ratio, 3.3; 95% confidence interval, 1.2-9.3; P=0.02) to be on sick leave compared with those without cognitive impairment (n=40; 36%, n=20, versus 15%, n=6). For OHCA survivors, the variables that were found most predictive for a lower participation were depression, restricted mobility, memory impairment, novel problem-solving difficulties, fatigue, and slower processing speed. CONCLUSIONS: OHCA survivors reported a more restricted societal participation 6 months post-arrest, and their return to work was lower compared with ST-segment elevation myocardial infarction controls. Cognitive impairment was significantly associated with lower participation, together with the closely related symptoms of fatigue, depression, and restricted mobility. These predictive variables may be used during follow-up to identify OHCA survivors at risk of a less successful recovery that may benefit from further support and rehabilitation. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01946932. PMID- 29326146 TI - Prior Authorization Requirements for Proprotein Convertase Subtilisin/Kexin Type 9 Inhibitors Across US Private and Public Payers. AB - BACKGROUND: Proprotein convertase subtilisin/kexin type 9 inhibitors (PCSK9is) are an innovative treatment option for patients with familial hypercholesterolemia or clinical atherosclerotic cardiovascular disease who require further lowering of low-density lipoprotein cholesterol. However, the high costs of these agents have spurred payers to implement utilization management policies to ensure appropriate use. We examined prior authorization (PA) requirements for PCSK9is across private and public US payers. METHODS AND RESULTS: We conducted an analysis of 2016 formulary coverage and PA data from a large, proprietary database with information on policies governing >95% of Americans with prescription drug coverage (275.3 million lives) within 3872 plans across the 4 major insurance segments (commercial, health insurance exchange, Medicare, and Medicaid). The key measures included administrative PA criteria (prescriber specialty, number of criteria in PA policy or number of fields on PA form, requirements for medical record submission, reauthorization requirements) and clinical/diagnostic PA criteria (approved conditions, required laboratories or other tests, required concomitant therapy, step therapy requirements, continuation criteria) for each of 2 Food and Drug Administration-approved PCSK9is. Select measures (eg, number of PA criteria/fields, medical record submission requirements) were obtained for 2 comparator cardiometabolic drugs (ezetimibe and liraglutide). Between 82% and 97% of individuals were enrolled in plans implementing PA for PCSK9is (depending on insurance segment), and one third to two thirds of these enrollees faced PAs restricting PCSK9i prescribing to a specialist. For patients with familial hypercholesterolemia, diagnostic confirmation via genetic testing or meeting minimum clinical scores/criteria was also required. PA requirements were more extensive for PCSK9is as compared with the other cardiometabolic drugs (ie, contained 3*-11* the number of PA criteria or fields on PA forms and more frequently involved the submission of medical records as supporting documentation). CONCLUSIONS: PA requirements for PCSK9is are greater than for selected other drugs within the cardiometabolic disease area, raising concerns about whether payer policies to discourage inappropriate use may also be restricting access to these drugs in patients who need them. PMID- 29326147 TI - Elephant in the Room: Cost of Proprotein Convertase Subtilisin/Kexin Type 9 Inhibitors. PMID- 29326148 TI - Improving Neurological, Functional, and Participatory Survival After Cardiac Arrest. PMID- 29326149 TI - Correction. PMID- 29326150 TI - Diagnostic Performance of the Instantaneous Wave-Free Ratio: Comparison With Fractional Flow Reserve. AB - BACKGROUND: Aim of the present study was to perform a meta-analysis of all available studies comparing the instantaneous wave-free ratio (iFR) with fractional flow reserve (FFR). METHODS AND RESULTS: Published trials comparing the iFR with FFR were searched for in PubMed, Google Scholar, and Scopus electronic databases. A total of 23 studies were available for the analysis, including 6381 stenoses. First, a meta-analysis of all studies was performed exploring the correlation between FFR and iFR. Interestingly, we found good correlation (0.798 [0.78-0.82]) between the 2 indices (P<0.001). In addition, to evaluate the diagnostic performance of iFR to identify FFR-positive coronary stenoses, we performed an additional meta-analysis, summarizing the results of receiver operating characteristics analyses from individual studies reporting the area under the curve. Summing the results of these studies, we found that iFR has a good diagnostic performance for the identification of FFR-positive stenoses (area under the curve=0.88 [0.86-0.90]; P<0.001). Furthermore, our search results included 5 studies that compared iFR and FFR to a third independent reference standard. Interestingly, no significant differences between iFR and FFR were reported in those studies. CONCLUSIONS: The present meta-analysis shows that iFR significantly correlates with standard FFR and shows a good diagnostic performance in identifying FFR-positive coronary stenoses. Finally, iFR and FFR have similar diagnostic efficiency for detection of ischemia-inducing stenoses when tested against a third comparator. PMID- 29326151 TI - Sex-Based Assessment of Patient Presentation, Lesion Characteristics, and Treatment Modalities in Patients Undergoing Peripheral Vascular Intervention. AB - BACKGROUND: Limited evidence suggests that women and men might be treated differently for peripheral arterial disease. This analysis evaluated sex-based differences in disease presentation and its effect on treatment modality among patients who underwent endovascular treatment for peripheral arterial disease. METHODS AND RESULTS: Using national registry data from the Vascular Quality Initiative between 2010 and 2013, we examined patient, limb, and artery characteristics by sex through descriptive statistics. We studied 26 750 procedures performed in 23 820 patients to treat 30 545 limbs and 44 804 arteries. Women presented at an older age (69 versus 67 years; P<0.001) and were less often current or former smokers (72% versus 85%; P<0.001). Transatlantic Inter-Society Consensus classification was similar among men and women (Transatlantic Inter-Society Consensus C or D: 37% in men versus 37% in women; P=0.81), as was mean occlusion length (4.5 cm in men versus 4.6 cm in women; P=0.04), even after accounting for lesion location. Women more frequently underwent treatment for rest pain (11% in men versus 16% in women; P<0.001) versus claudication (59% in men versus 53% in women; P<0.001) or tissue loss (28% in men versus 27% in women; P=0.75). Treatment modality did not differ by sex but was associated with disease severity (P for trend <0.001) and lesion location (P for trend <0.001). CONCLUSIONS: Women undergo peripheral endovascular intervention for peripheral arterial disease at an older age with critical limb ischemia. Treatment modalities do not vary by sex but are determined by disease severity and site. Although there exist sex differences in presentation, these differences do not lead to differential treatment for women with peripheral arterial disease. PMID- 29326152 TI - Decision Analytic Markov Model Weighting Expected Benefits and Current Limitations of First-Generation Bioresorbable Vascular Scaffolds: Implications for Manufacturers and Next Device Iterations. AB - BACKGROUND: Relative benefits of bioresorbable vascular scaffolds (BVS) compared with everolimus-eluting stents (EES) are expected to accrue after complete bioresorption. METHODS AND RESULTS: We built a decision analytic Markov model comparing BVS and EES for a contemporary percutaneous coronary intervention population. Procedure-related morbidity and outcome data from the available literature were used to derive model probabilities. The net benefit of BVS and EES was estimated in terms of quality-adjusted life expectancy. Under the assumption of no risk for device thrombosis and target lesion revascularization with BVS beyond 3 years, the equipoise in quality-adjusted life expectancy (12.86) between BVS and EES was achieved 19 years after implantation. The maximum tolerable excess risk of 3-year BVS thrombosis equalizing the model-predicted quality-adjusted life expectancy of BVS and EES at 10 years was 1.40, corresponding to an absolute tolerable rate of 1.45%. CONCLUSIONS: At the currently observed relative increase in device thrombosis and under the extreme hypothesis of no scaffold thrombosis and target lesion revascularization beyond 3 years, the incremental benefit of BVS over EES becomes apparent only after 19 years. This simulation suggests that there is a small degree of benefit that clinicians and decision-makers may expect from the first-generation BVS at the current risk of device thrombosis. Manufacturers should target scaffold thrombosis rates <1.45% at 3 years to make their technologies attractive during a 10-year horizon. PMID- 29326154 TI - What Happened to the Bioresorbable Scaffold Concept: Black Tide or Chernobyl? PMID- 29326153 TI - Treatment Effect of Drug-Coated Balloons Is Durable to 3 Years in the Femoropopliteal Arteries: Long-Term Results of the IN.PACT SFA Randomized Trial. AB - BACKGROUND: Randomized controlled trials have reported favorable 1-year outcomes with drug-coated balloons (DCBs) for the treatment of symptomatic peripheral arterial disease when compared with standard percutaneous transluminal angioplasty (PTA). Evidence remains limited on the durability of the treatment effect with DCBs in the longer term. METHODS AND RESULTS: IN.PACT SFA is a single blind, randomized trial (Randomized Trial of IN.PACT Admiral Paclitaxel-Coated Percutaneous Transluminal Angioplasty [PTA] Balloon Catheter vs Standard PTA for the Treatment of Atherosclerotic Lesions in the Superficial Femoral Artery [SFA] and/or Proximal Popliteal Artery [PPA]) that enrolled 331 patients with symptomatic (Rutherford 2-4) femoropopliteal lesions up to 18 cm in length. Patients were randomized 2:1 to receive treatment with DCB or PTA. The 36-month assessments included primary patency, freedom from clinically driven target lesion revascularization, major adverse events, and functional outcomes. At 36 months, primary patency remained significantly higher among patients treated with DCB compared with PTA (69.5% versus 45.1%; log rank P<0.001). The rates of clinically driven target lesion revascularization were 15.2% and 31.1% (P=0.002) for the DCB and PTA groups, respectively. Functional outcomes were similarly improved between treatment groups even though subjects in the DCB group required significantly fewer reinterventions versus those in the PTA group (P<0.001 for target lesion revascularization, P=0.001 for target vessel revascularization). There were no device- or procedure-related deaths as adjudicated by an independent Clinical Events Committee. CONCLUSIONS: Three-year results demonstrate a durable and superior treatment effect among patients treated with DCB versus standard PTA, with significantly higher primary patency and lower clinically driven target lesion revascularization, resulting in similar functional improvements with reduced need for repeat interventions. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifiers: NCT01175850 for IN.PACT SFA phase I in the European Union and NCT01566461 for IN.PACT SFA phase II in the United States. PMID- 29326155 TI - Instant Wave-Free Ratio or Fractional Flow Reserve for Hemodynamic Coronary Lesion Assessment? Yes, Just Do It! PMID- 29326156 TI - Leave No Stent Behind: Are Drug-Coated Balloons Enough for Femoropopliteal Disease? PMID- 29326158 TI - Reciprocal Spatiotemporally Controlled Apoptosis Regulates Wolffian Duct Cloaca Fusion. AB - The epithelial Wolffian duct (WD) inserts into the cloaca (primitive bladder) before metanephric kidney development, thereby establishing the initial plumbing for eventual joining of the ureters and bladder. Defects in this process cause common anomalies in the spectrum of congenital anomalies of the kidney and urinary tract (CAKUT). However, developmental, cellular, and molecular mechanisms of WD-cloaca fusion are poorly understood. Through systematic analysis of early WD tip development in mice, we discovered that a novel process of spatiotemporally regulated apoptosis in WD and cloaca was necessary for WD-cloaca fusion. Aberrant RET tyrosine kinase signaling through tyrosine (Y) 1062, to which PI3K- or ERK-activating proteins dock, or Y1015, to which PLCgamma docks, has been shown to cause CAKUT-like defects. Cloacal apoptosis did not occur in RetY1062F mutants, in which WDs did not reach the cloaca, or in RetY1015F mutants, in which WD tips reached the cloaca but did not fuse. Moreover, inhibition of ERK or apoptosis prevented WD-cloaca fusion in cultures, and WD specific genetic deletion of YAP attenuated cloacal apoptosis and WD-cloacal fusion in vivo Thus, cloacal apoptosis requires direct contact and signals from the WD tip and is necessary for WD-cloacal fusion. These findings may explain the mechanisms of many CAKUT. PMID- 29326159 TI - An intrinsic lipid-binding interface controls sphingosine kinase 1 function. AB - Sphingosine kinase 1 (SK1) is required for production of sphingosine-1-phosphate (S1P) and thereby regulates many cellular processes, including cellular growth, immune cell trafficking, and inflammation. To produce S1P, SK1 must access sphingosine directly from membranes. However, the molecular mechanisms underlying SK1's direct membrane interactions remain unclear. We used hydrogen/deuterium exchange MS to study interactions of SK1 with membrane vesicles. Using the CRISPR/Cas9 technique to generate HCT116 cells lacking SK1, we explored the effects of membrane interface disruption and the function of the SK1 interaction site. Disrupting the interface resulted in reduced membrane association and decreased cellular SK1 activity. Moreover, SK1-dependent signaling, including cell invasion and endocytosis, was abolished upon mutation of the membrane binding interface. Of note, we identified a positively charged motif on SK1 that is responsible for electrostatic interactions with membranes. Furthermore, we demonstrated that SK1 uses a single contiguous interface, consisting of an electrostatic site and a hydrophobic site, to interact with membrane-associated anionic phospholipids. Altogether, these results define a composite domain in SK1 that regulates its intrinsic ability to bind membranes and indicate that this binding is critical for proper SK1 function. This work will allow for a new line of thinking for targeting SK1 in disease. PMID- 29326160 TI - Hypoxia-inducible lipid droplet-associated protein inhibits adipose triglyceride lipase. AB - Elaborate control mechanisms of intracellular triacylglycerol (TAG) breakdown are critically involved in the maintenance of energy homeostasis. Hypoxia-inducible lipid droplet-associated protein (HILPDA)/hypoxia-inducible gene-2 (Hig-2) has been shown to affect intracellular TAG levels, yet, the underlying molecular mechanisms are unclear. Here, we show that HILPDA inhibits adipose triglyceride lipase (ATGL), the enzyme catalyzing the first step of intracellular TAG hydrolysis. HILPDA shares structural similarity with G0/G1 switch gene 2 (G0S2), an established inhibitor of ATGL. HILPDA inhibits ATGL activity in a dose dependent manner with an IC50 value of ~2 MUM. ATGL inhibition depends on the direct physical interaction of both proteins and involves the N-terminal hydrophobic region of HILPDA and the N-terminal patatin domain-containing segment of ATGL. Finally, confocal microscopy combined with Forster resonance energy transfer-fluorescence lifetime imaging microscopy analysis indicated that HILPDA and ATGL colocalize and physically interact intracellularly. These findings provide a rational biochemical explanation for the tissue-specific increased TAG accumulation in HILPDA-overexpressing transgenic mouse models. PMID- 29326157 TI - Targeting B Cells and Plasma Cells in Glomerular Diseases: Translational Perspectives. AB - The unique contributions of memory B cells and plasma cells in kidney diseases remain unclear. In this review, we evaluate the clinical experience with treatments directed at B cells, such as rituximab, and at plasma cells, such as proteasome inhibition, to shed light on the role of these two B lineage compartments in glomerular diseases. Specifically, analysis of these targeted interventions in diseases such as ANCA-associated vasculitis, SLE, and antibody mediated transplant rejection permits insight into the pathogenetic effect of these cells. Notwithstanding the limitations of preclinical models and clinical studies (heterogeneous populations, among others), the data suggest that memory B and plasma cells represent two engines of autoimmunity, with variable involvement in these diseases. Whereas memory B cells and plasma cells appear to be key in ANCA-associated vasculitis and antibody-mediated transplant rejection, respectively, SLE seems likely to be driven by both autoimmune compartments. These conclusions have implications for the future development of targeted therapeutics in immune-mediated renal disease. PMID- 29326162 TI - Structural basis for (p)ppGpp synthesis by the Staphylococcus aureus small alarmone synthetase RelP. AB - The stringent response is a global reprogramming of bacterial physiology that renders cells more tolerant to antibiotics and induces virulence gene expression in pathogens in response to stress. This process is driven by accumulation of the intracellular alarmone guanosine-5'-di(tri)phosphate-3'-diphosphate ((p)ppGpp), which is produced by enzymes of the RelA SpoT homologue (RSH) family. The Gram positive Firmicute pathogen, Staphylococcus aureus, encodes three RSH enzymes: a multidomain RSH (Rel) that senses amino acid starvation on the ribosome and two small alarmone synthetase (SAS) enzymes, RelQ (SAS1) and RelP (SAS2). In Bacillus subtilis, RelQ (SAS1) was shown to form a tetramer that is activated by pppGpp and inhibited by single-stranded RNA, but the structural and functional regulation of RelP (SAS2) is unexplored. Here, we present crystal structures of S. aureus RelP in two major functional states, pre-catalytic (bound to GTP and the non-hydrolyzable ATP analogue, adenosine 5'-(alpha,beta methylene)triphosphate (AMP-CPP)), and post-catalytic (bound to pppGpp). We observed that RelP also forms a tetramer, but unlike RelQ (SAS1), it is strongly inhibited by both pppGpp and ppGpp and is insensitive to inhibition by RNA. We also identified putative metal ion-binding sites at the subunit interfaces that were consistent with the observed activation of the enzyme by Zn2+ ions. The structures reported here reveal the details of the catalytic mechanism of SAS enzymes and provide a molecular basis for understanding differential regulation of SAS enzymes in Firmicute bacteria. PMID- 29326161 TI - SUMO2/3 modification of activating transcription factor 5 (ATF5) controls its dynamic translocation at the centrosome. AB - Activating transcription factor 5 (ATF5) is a member of the ATF/cAMP response element-binding protein family of transcription factors. ATF5 regulates stress responses and cell survival, proliferation, and differentiation and also plays a role in viral infections, cancer, diabetes, schizophrenia, and the olfactory system. Moreover, it was found to also have a critical cell cycle-dependent structural function at the centrosome. However, the mechanism that controls the localization of ATF5 at the centrosome is unclear. Here we report that ATF5 is small ubiquitin-like modifier (SUMO) 2/3-modified at a conserved SUMO-targeting consensus site in various types of mammalian cells. We found that SUMOylation of ATF5 is elevated in the G1 phase of the cell cycle and diminished in the G2/M phase. ATF5 SUMOylation disrupted the interaction of ATF5 with several centrosomal proteins and dislodged ATF5 from the centrosome at the end of the M phase. Of note, blockade of ATF5 SUMOylation deregulated the centrosome cycle, impeded ATF5 translocation from the centrosome, and caused genomic instability and G2/M arrest in HeLa cells. Our results indicate that ATF5 SUMOylation is an essential mechanism that regulates ATF5 localization and function at the centrosome. PMID- 29326163 TI - LIM and cysteine-rich domains 1 is required for thrombin-induced smooth muscle cell proliferation and promotes atherogenesis. AB - Restenosis arises after vascular injury and is characterized by arterial wall thickening and decreased arterial lumen space. Vascular injury induces the production of thrombin, which in addition to its role in blood clotting acts as a mitogenic and chemotactic factor. In exploring the molecular mechanisms underlying restenosis, here we identified LMCD1 (LIM and cysteine-rich domains 1) as a gene highly responsive to thrombin in human aortic smooth muscle cells (HASMCs). Of note, LMCD1 depletion inhibited proliferation of human but not murine vascular smooth muscle cells. We also found that by physically interacting with E2F transcription factor 1, LMCD1 mediates thrombin-induced expression of the CDC6 (cell division cycle 6) gene in the stimulation of HASMC proliferation. Thrombin-induced LMCD1 and CDC6 expression exhibited a requirement for protease activated receptor 1-mediated Galphaq/11-dependent activation of phospholipase C beta3. Moreover, the expression of LMCD1 was highly induced in smooth muscle cells located at human atherosclerotic lesions and correlated with CDC6 expression and that of the proliferation marker Ki67. Furthermore, the LMCD1- and SMCalphaactin-positive cells had higher cholesterol levels in the atherosclerotic lesions. In conclusion, these findings indicate that by acting as a co-activator with E2F transcription factor 1 in CDC6 expression, LMCD1 stimulates HASMC proliferation and thereby promotes human atherogenesis, suggesting an involvement of LMCD1 in restenosis. PMID- 29326164 TI - The glutamine transporter ASCT2 (SLC1A5) promotes tumor growth independently of the amino acid transporter LAT1 (SLC7A5). AB - The transporters for glutamine and essential amino acids, ASCT2 (solute carrier family 1 member 5, SLC1A5) and LAT1 (solute carrier family 7 member 5, SLC7A5), respectively, are overexpressed in aggressive cancers and have been identified as cancer-promoting targets. Moreover, previous work has suggested that glutamine influx via ASCT2 triggers essential amino acids entry via the LAT1 exchanger, thus activating mechanistic target of rapamycin complex 1 (mTORC1) and stimulating growth. Here, to further investigate whether these two transporters are functionally coupled, we compared the respective knockout (KO) of either LAT1 or ASCT2 in colon (LS174T) and lung (A549) adenocarcinoma cell lines. Although ASCT2KO significantly reduced glutamine import (>60% reduction), no impact on leucine uptake was observed in both cell lines. Although an in vitro growth reduction phenotype was observed in A549-ASCT2KO cells only, we found that genetic disruption of ASCT2 strongly decreased tumor growth in both cell lines. However, in sharp contrast to LAT1KO cells, ASCT2KO cells displayed no amino acid (AA) stress response (GCN2/EIF2a/ATF4) or altered mTORC1 activity (S6K1/S6). We therefore conclude that ASCT2KO reduces tumor growth by limiting AA import, but that this effect is independent of LAT1 activity. These data were further supported by in vitro cell proliferation experiments performed in the absence of glutamine. Together these results confirm and extend ASCT2's pro-tumoral role and indicate that the proposed functional coupling model of ASCT2 and LAT1 is not universal across different cancer types. PMID- 29326165 TI - Phosphorylation-mediated structural changes within the SOAR domain of stromal interaction molecule 1 enable specific activation of distinct Orai channels. AB - Low-conductance, highly calcium-selective channels formed by the Orai proteins exist as store-operated CRAC channels and store-independent, arachidonic acid activated ARC channels. Both are activated by stromal interaction molecule 1 (STIM1), but CRAC channels are activated by STIM1 located in the endoplasmic reticulum membrane, whereas ARC channels are activated by the minor plasma membrane-associated pool of STIM1. Critically, maximally activated CRAC channel and ARC channel currents are completely additive within the same cell, and their selective activation results in their ability to each induce distinct cellular responses. We have previously shown that specific ARC channel activation requires a PKA-mediated phosphorylation of a single threonine residue (Thr389) within the cytoplasmic region of STIM1. Here, examination of the molecular basis of this phosphorylation-dependent activation revealed that phosphorylation of the Thr389 residue induces a significant structural change in the STIM1-Orai-activating region (SOAR) that interacts with the Orai proteins, and it is this change that determines the selective activation of the store-independent ARC channels versus the store-operated CRAC channels. In conclusion, our findings reveal the structural changes underlying the selective activation of STIM1-induced CRAC or ARC channels that determine the specific stimulation of these two functionally distinct Ca2+ entry pathways. PMID- 29326166 TI - A skeletal muscle L-type Ca2+ channel with a mutation in the selectivity filter (CaV1.1 E1014K) conducts K. AB - A glutamate-to-lysine substitution at position 1014 within the selectivity filter of the skeletal muscle L-type Ca2+ channel (CaV1.1) abolishes Ca2+ flux through the channel pore. Mice engineered to exclusively express the mutant channel display accelerated muscle fatigue, changes in muscle composition, and altered metabolism relative to wildtype littermates. By contrast, mice expressing another mutant CaV1.1 channel that is impermeable to Ca2+ (CaV1.1 N617D) have shown no detectable phenotypic differences from wildtype mice to date. The major biophysical difference between the CaV1.1 E1014K and CaV1.1 N617D mutants elucidated thus far is that the former channel conducts robust Na+ and Cs+ currents in patch-clamp experiments, but neither of these monovalent conductances seems to be of relevance in vivo Thus, the basis for the different phenotypes of these mutants has remained enigmatic. We now show that CaV1.1 E1014K readily conducts 1,4-dihydropyridine-sensitive K+ currents at depolarizing test potentials, whereas CaV1.1 N617D does not. Our observations, coupled with a large body of work by others regarding the role of K+ accumulation in muscle fatigue, raise the possibility that the introduction of an additional K+ flux from the myoplasm into the transverse-tubule lumen accelerates the onset of fatigue and precipitates the metabolic changes observed in CaV1.1 E1014K muscle. These results, highlighting an unexpected consequence of a channel mutation, may help define the complex mechanisms underlying skeletal muscle fatigue and related dysfunctions. PMID- 29326167 TI - The protein kinase CK2 substrate Jabba modulates lipid metabolism during Drosophila oogenesis. AB - Lipid metabolism plays a critical role in female reproduction. During oogenesis, maturing oocytes accumulate high levels of neutral lipids that are essential for both energy production and the synthesis of other lipid molecules. Metabolic pathways within the ovary are partially regulated by protein kinases that link metabolic status to oocyte development. Although the functions of several kinases in this process are well established, the roles that many other kinases play in coordinating metabolic state with female germ cell development are unknown. Here, we demonstrate that the catalytic activity of casein kinase 2 (CK2) is essential for Drosophila oogenesis. Using an unbiased biochemical screen that leveraged an unusual catalytic property of the kinase, we identified a novel CK2 substrate in the Drosophila ovary, the lipid droplet-associated protein Jabba. We show that Jabba is essential for modulating ovarian lipid metabolism and for regulating female fertility in the fly. Our findings shed light on a CK2-dependent signaling pathway governing lipid metabolism in the ovary and provide insight into the long recognized but poorly understood association between energy metabolism and female reproduction. PMID- 29326170 TI - Editorial. PMID- 29326168 TI - Cyclic di-adenosine monophosphate (c-di-AMP) is required for osmotic regulation in Staphylococcus aureus but dispensable for viability in anaerobic conditions. AB - Cyclic di-adenosine monophosphate (c-di-AMP) is a recently discovered signaling molecule important for the survival of Firmicutes, a large bacterial group that includes notable pathogens such as Staphylococcus aureus However, the exact role of this molecule has not been identified. dacA, the S. aureus gene encoding the diadenylate cyclase enzyme required for c-di-AMP production, cannot be deleted when bacterial cells are grown in rich medium, indicating that c-di-AMP is required for growth in this condition. Here, we report that an S. aureus dacA mutant can be generated in chemically defined medium. Consistent with previous findings, this mutant had a severe growth defect when cultured in rich medium. Using this growth defect in rich medium, we selected for suppressor strains with improved growth to identify c-di-AMP-requiring pathways. Mutations bypassing the essentiality of dacA were identified in alsT and opuD, encoding a predicted amino acid and osmolyte transporter, the latter of which we show here to be the main glycine betaine-uptake system in S. aureus. Inactivation of these transporters likely prevents the excessive osmolyte and amino acid accumulation in the cell, providing further evidence for a key role of c-di-AMP in osmotic regulation. Suppressor mutations were also obtained in hepS, hemB, ctaA, and qoxB, coding proteins required for respiration. Furthermore, we show that dacA is dispensable for growth in anaerobic conditions. Together, these findings reveal an essential role for the c-di-AMP signaling network in aerobic, but not anaerobic, respiration in S. aureus. PMID- 29326169 TI - Dual cyclooxygenase-fatty acid amide hydrolase inhibitor exploits novel binding interactions in the cyclooxygenase active site. AB - The cyclooxygenases COX-1 and COX-2 oxygenate arachidonic acid (AA) to prostaglandin H2 (PGH2). COX-2 also oxygenates the endocannabinoids 2 arachidonoylglycerol (2-AG) and arachidonoylethanolamide (AEA) to the corresponding PGH2 analogs. Both enzymes are targets of nonsteroidal anti inflammatory drugs (NSAIDs), but NSAID-mediated COX inhibition is associated with gastrointestinal toxicity. One potential strategy to counter this toxicity is to also inhibit fatty acid amide hydrolase (FAAH), which hydrolyzes bioactive fatty acid ethanolamides (FAEs) into fatty acids and ethanolamine. Here, we investigated the mechanism of COX inhibition by ARN2508, an NSAID that inhibits both COXs and FAAH with high potency, target selectivity, and decreased gastrointestinal toxicity in mouse models, presumably due to its ability to increase levels of FAEs. A 2.27-A-resolution X-ray crystal structure of the COX 2.(S)-ARN2508 complex reveals that ARN2508 adopts a binding pose similar to that of its parent NSAID flurbiprofen. However, ARN2508's alkyl tail is inserted deep into the top channel, an active site region not exploited by any previously reported NSAID. As for flurbiprofen, ARN2508's potency is highly dependent on the configuration of the alpha-methyl group. Thus, (S)-ARN2508 is more potent than (R)-ARN2508 for inhibition of AA oxygenation by both COXs and 2-AG oxygenation by COX-2. Also, similarly to (R)-flurbiprofen, (R)-ARN2508 exhibits substrate selectivity for inhibition of 2-AG oxygenation. Site-directed mutagenesis confirms the importance of insertion of the alkyl tail into the top channel for (S)-ARN2508's potency and suggests a role for Ser-530 as a determinant of the inhibitor's slow rate of inhibition compared with that of (S)-flurbiprofen. PMID- 29326171 TI - Abdominal Vagal Afferents Modulate the Brain Transcriptome and Behaviors Relevant to Schizophrenia. AB - Reduced activity of vagal efferents has long been implicated in schizophrenia and appears to be responsible for diminished parasympathetic activity and associated peripheral symptoms such as low heart rate variability and cardiovascular complications in affected individuals. In contrast, only little attention has been paid to the possibility that impaired afferent vagal signaling may be relevant for the disorder's pathophysiology as well. The present study explored this hypothesis using a model of subdiaphragmatic vagal deafferentation (SDA) in male rats. SDA represents the most complete and selective vagal deafferentation method existing to date as it leads to complete disconnection of all abdominal vagal afferents while sparing half of the abdominal vagal efferents. Using next generation mRNA sequencing, we show that SDA leads to brain transcriptional changes in functional networks annotating with schizophrenia. We further demonstrate that SDA induces a hyperdopaminergic state, which manifests itself as increased sensitivity to acute amphetamine treatment and elevated accumbal levels of dopamine and its major metabolite, 3,4-dihydroxyphenylacetic acid. Our study also shows that SDA impairs sensorimotor gating and the attentional control of associative learning, which were assessed using the paradigms of prepulse inhibition and latent inhibition, respectively. These data provide converging evidence suggesting that the brain transcriptome, dopamine neurochemistry, and behavioral functions implicated in schizophrenia are subject to visceral modulation through abdominal vagal afferents. Our findings may encourage the further establishment and use of therapies for schizophrenia that are based on vagal interventions.SIGNIFICANCE STATEMENT The present work provides a better understanding of how disrupted vagal afferent signaling can contribute to schizophrenia-related brain and behavioral abnormalities. More specifically, it shows that subdiaphragmatic vagal deafferentation (SDA) in rats leads to (1) brain transcriptional changes in functional networks related to schizophrenia, (2) increased sensitivity to dopamine-stimulating drugs and elevated dopamine levels in the nucleus accumbens, and (3) impairments in sensorimotor gating and the attentional control of associative learning. These findings may encourage the further establishment of novel therapies for schizophrenia that are based on vagal interventions. PMID- 29326172 TI - Diversity and Connectivity of Layer 5 Somatostatin-Expressing Interneurons in the Mouse Barrel Cortex. AB - Inhibitory interneurons represent 10-15% of the neurons in the somatosensory cortex, and their activity powerfully shapes sensory processing. Three major groups of GABAergic interneurons have been defined according to developmental, molecular, morphological, electrophysiological, and synaptic features. Dendritic targeting somatostatin-expressing interneurons (SST-INs) have been shown to display diverse morphological, electrophysiological, and molecular properties and activity patterns in vivo However, the correlation between these properties and SST-IN subtype is unclear. In this study, we aimed to correlate the morphological diversity of layer 5 (L5) SST-INs with their electrophysiological and molecular diversity in mice of either sex. Our morphological analysis demonstrated the existence of three subtypes of L5 SST-INs with distinct electrophysiological properties: T-shaped Martinotti cells innervate L1, and are low-threshold spiking; fanning-out Martinotti cells innervate L2/3 and the lower half of L1, and show adapting firing patterns; non-Martinotti cells innervate L4, and show a quasi-fast spiking firing pattern. We estimated the proportion of each subtype in L5 and found that T-shaped Martinotti, fanning-out Martinotti, and Non-Martinotti cells represent ~10, ~50, and ~40% of L5 SST-INs, respectively. Last, we examined the connectivity between the three SST-IN subtypes and L5 pyramidal cells (PCs). We found that L5 T-shaped Martinotti cells inhibit the L1 apical tuft of nearby PCs; L5 fanning-out Martinotti cells also inhibit nearby PCs but they target the dendrite mainly in L2/3. On the other hand, non-Martinotti cells inhibit the dendrites of L4 neurons while avoiding L5 PCs. Our data suggest that morphologically distinct SST-INs gate different excitatory inputs in the barrel cortex.SIGNIFICANCE STATEMENT Morphologically diverse layer 5 SST-INs show different patterns of activity in behaving animals. However, little is known about the abundance and connectivity of each morphological type and the correlation between morphological subtype and spiking properties. We demonstrate a correlation between the morphological and electrophysiological diversity of layer 5 SST-INs. Based on these findings we built a classifier to infer the abundance of each morphological subtype. Last, using paired recordings combined with morphological analysis, we investigated the connectivity of each morphological subtype. Our data suggest that, by targeting different cell types and cellular compartments, morphologically diverse SST-INs might gate different excitatory inputs in the mouse barrel cortex. PMID- 29326173 TI - Transcriptional Regulator ZEB2 Is Essential for Bergmann Glia Development. AB - Bergmann glia facilitate granule neuron migration during development and maintain the cerebellar organization and functional integrity. At present, molecular control of Bergmann glia specification from cerebellar radial glia is not fully understood. In this report, we show that ZEB2 (aka, SIP1 or ZFHX1B), a Mowat Wilson syndrome-associated transcriptional regulator, is highly expressed in Bergmann glia, but hardly detectable in astrocytes in the cerebellum. The mice lacking Zeb2 in cerebellar radial glia exhibit severe deficits in Bergmann glia specification, and develop cerebellar cortical lamination dysgenesis and locomotion defects. In developing Zeb2-mutant cerebella, inward migration of granule neuron progenitors is compromised, the proliferation of glial precursors is reduced, and radial glia fail to differentiate into Bergmann glia in the Purkinje cell layer. In contrast, Zeb2 ablation in granule neuron precursors or oligodendrocyte progenitors does not affect Bergmann glia formation, despite myelination deficits caused by Zeb2 mutation in the oligodendrocyte lineage. Transcriptome profiling identified that ZEB2 regulates a set of Bergmann glia related genes and FGF, NOTCH, and TGFbeta/BMP signaling pathway components. Our data reveal that ZEB2 acts as an integral regulator of Bergmann glia formation ensuring maintenance of cerebellar integrity, suggesting that ZEB2 dysfunction in Bergmann gliogenesis might contribute to motor deficits in Mowat-Wilson syndrome.SIGNIFICANCE STATEMENT Bergmann glia are essential for proper cerebellar organization and functional circuitry, however, the molecular mechanisms that control the specification of Bergmann glia remain elusive. Here, we show that transcriptional factor ZEB2 is highly expressed in mature Bergmann glia, but not in cerebellar astrocytes. The mice lacking Zeb2 in cerebellar radial glia, but not oligodendrocyte progenitors or granular neuron progenitors, exhibit severe defects in Bergmann glia formation. The orderly radial scaffolding formed by Bergmann glial fibers critical for cerebellar lamination was not established in Zeb2 mutants, displaying motor behavior deficits. This finding demonstrates a previously unrecognized critical role for ZEB2 in Bergmann glia specification, and points to an important contribution of ZEB2 dysfunction to cerebellar motor disorders in Mowat-Wilson syndrome. PMID- 29326175 TI - Birth options after a caesarean section. PMID- 29326174 TI - Muscle Nicotinic Acetylcholine Receptors May Mediate Trans-Synaptic Signaling at the Mouse Neuromuscular Junction. AB - Block of neurotransmitter receptors at the neuromuscular junction (NMJ) has been shown to trigger upregulation of the number of synaptic vesicles released (quantal content, QC), a response termed homeostatic synaptic plasticity. The mechanism underlying this plasticity is not known. Here, we used selective toxins to demonstrate that block of alpha1-containing nicotinic acetylcholine receptors (nAChRs) at the NMJ of male and female mice triggers the upregulation of QC. Reduction of current flow through nAChRs, induced by drugs with antagonist activity, demonstrated that reduction in synaptic current per se does not trigger upregulation of QC. These data led to the remarkable conclusion that disruption of synaptic transmission is not sensed to trigger upregulation of QC. During studies of the effect of partial block of nAChRs on QC, we observed a small but reproducible increase in the decay kinetics of miniature synaptic currents. The change in kinetics was correlated with the increase in QC and raises the possibility that a change in postsynaptic nAChR conformation may be associated with the presynaptic increase in QC. We propose that, in addition to functioning in synaptic transmission, ionotropic muscle nicotonic nAChRs may serve as signaling molecules that participate in synaptic plasticity. Because nAChRs have been implicated in a number of disease states, the finding that nAChRs may be involved in triggering synaptic plasticity could have wide-reaching implications.SIGNIFICANCE STATEMENT The signals that initiate synaptic plasticity of the nervous system are still incompletely understood. Using the mouse neuromuscular junction as a model synapse, we studied how block of neurotransmitter receptors is sensed to trigger synaptic plasticity. Our studies led to the surprising conclusion that neither changes in synaptic current nor spiking of the presynaptic or postsynaptic cell are sensed to initiate synaptic plasticity. Instead, postsynaptic nicotinic acetylcholine receptors (nAChRs), in addition to functioning in synaptic transmission, may serve as signaling molecules that trigger synaptic plasticity. Because nAChRs have been implicated in a number of disease states, the finding that they may mediate synaptic plasticity has broad implications. PMID- 29326177 TI - STIs in sex partners notified for chlamydia exposure: implications for expedited partner therapy. AB - OBJECTIVES: Expedited partner therapy (EPT) may reduce chlamydia reinfection rates. However, the disadvantages of EPT for chlamydia include missing the opportunity to test for other STIs and unnecessary use of antibiotics among non infected partners. As part of a larger study that investigated the feasibility of EPT in the Netherlands, we explored the frequency of STI among a potential EPT target population of chlamydia-notified heterosexual men and women attending STI clinics for testing. METHODS: Cross-sectional national STI/HIV surveillance data, which contain information on all consultations at STI clinics, were used to calculate STI positivity rates stratified by chlamydia notification and gender, and proportions of STI that were attributable to clients notified for chlamydia. RESULTS: Of all consultations in 2015 (n=101 710), 14 445 (14.4%) clients reported to be notified exclusively for chlamydia. Among chlamydia-notified clients, the chlamydia positivity rate was 34.2% (n=4947), and consequently 65.8% (n=9488) of them tested negative for chlamydia. Chlamydia-notified clients contributed to 10.2% of all gonorrhoea infections (n=174/1702) and 10.9% of all infectious syphilis, HIV and/or infectious hepatitis B infections (n=15/173). CONCLUSION: Implementing EPT without additional STI testing for all partners of chlamydia-infected index patients implies that STIs other than chlamydia will be missed. Although the chlamydia positivity rate was high among chlamydia-notified partners, two-thirds would unnecessarily use azithromycin. An evaluation of EPT against the current partner treatment strategy is needed to carefully weigh the potential health gains against the potential health losses and to explore the characteristics of EPT-eligible partners. PMID- 29326176 TI - Combinatorial Omics Analysis Reveals Perturbed Lysosomal Homeostasis in Collagen VII-deficient Keratinocytes. AB - The extracellular matrix protein collagen VII is part of the microenvironment of stratified epithelia and critical in organismal homeostasis. Mutations in the encoding gene COL7A1 lead to the skin disorder dystrophic epidermolysis bullosa (DEB), are linked to skin fragility and progressive inflammation-driven fibrosis that facilitates aggressive skin cancer. So far, these changes have been linked to mesenchymal alterations, the epithelial consequences of collagen VII loss remaining under-addressed. As epithelial dysfunction is a principal initiator of fibrosis, we performed a comprehensive transcriptome and proteome profiling of primary human keratinocytes from DEB and control subjects to generate global and detailed images of dysregulated epidermal molecular pathways linked to loss of collagen VII. These revealed downregulation of interaction partners of collagen VII on mRNA and protein level, but also increased abundance of S100 pro inflammatory proteins in primary DEB keratinocytes. Increased TGF-beta signaling because of loss of collagen VII was associated with enhanced activity of lysosomal proteases in both keratinocytes and skin of collagen VII-deficient individuals. Thus, loss of a single structural protein, collagen VII, has extra- and intracellular consequences, resulting in inflammatory processes that enable tissue destabilization and promote keratinocyte-driven, progressive fibrosis. PMID- 29326178 TI - Impact of replacing cytology with human papillomavirus testing for cervical cancer screening on the prevalence of Trichomonas vaginalis: a modelling study. AB - OBJECTIVES: Trichomonas vaginalis (TV) is the most common curable STI worldwide and is associated with increased risk of HIV acquisition and serious reproductive morbidities. The prevalence of TV infection is very low in Australian cities, and this is thought to be at least partly due to incidental detection and treatment of TV in women participating in the cervical cytology screening programme. In 2017, the national cervical screening programme will transition to a new model based on testing for high-risk (HR) human papillomavirus (HPV), with a reduced frequency and commencement at an older age. We model the potential impact of this transition on TV prevalence in Australia. METHODS: A mathematical model was developed to describe the transmission of TV in the general population and used to evaluate scenarios that capture the switch from cytology-based screening to HR HPV testing. Under these scenarios, individuals with asymptomatic TV who test negative for HR HPV will remain undiagnosed and untreated. We estimate the change in TV prevalence expected to occur due to the switch from cytology to HR HPV testing and changes to the frequency and age at commencement of screening. RESULTS: Our results suggest that with the transition to HR HPV testing, TV prevalence may increase from the current ~0.4% to 2.8% within 20 years if TV testing coverage is not increased and HR HPV prevalence does not decline further. If HR HPV prevalence continues to decline at its current rate with ongoing vaccination, TV prevalence is predicted to increase to 3.0% within this time frame. CONCLUSIONS: Our modelling suggests that in a setting like Australia, where TV can be detected incidentally through cytology-based cervical screening, a transition to HPV testing is likely to result in increasing TV prevalence over time unless additional measures are implemented to increase TV testing and treatment. PMID- 29326179 TI - Mixed-methods evaluation of a novel online STI results service. AB - OBJECTIVES: Evidence on optimal methods for providing STI test results is lacking. We evaluated an online results service, developed as part of an eSexual Health Clinic (eSHC). METHODS: We evaluated the online results service using a mixed-methods approach within large exploratory studies of the eSHC. Participants were chlamydia- positive and negative users of online postal self-sampling services in six National Chlamydia Screening Programme (NCSP) areas and chlamydia positive patients from two genitourinary medicine (GUM) clinics between 21 July 2014 and 13 March 2015. Participants received a discreetly worded National Health Service 'NHS no-reply' text message (SMS) informing them that their test results were ready and providing a weblink to a secure website. Participants logged in with their date of birth and mobile telephone or clinic number. Chlamydia positive patients were offered online management. All interactions with the eSHC system were automatically logged and their timing recorded. Post-treatment, a service evaluation survey (n=152) and qualitative interviews (n=36) were conducted by telephone. Chlamydia-negative patients were offered a short online survey (n=274). Data were integrated. RESULTS: 92% (134/146) of NCSP chlamydia positive patients, 82% (161/197) of GUM chlamydia-positive patients and 89% (1776/1997) of NCSP chlamydia-negative participants accessed test results within 7 days. 91% of chlamydia-positive patients were happy with the results service; 64% of those who had tested previously found the results service better or much better than previous experiences. 90% of chlamydia-negative survey participants agreed they would be happy to receive results this way in the future. Interviewees described accessing results with ease and appreciated the privacy and control the two-step process gave them. CONCLUSION: A discreet SMS to alert users/patients that results are available, followed by provision of results via a secure website, was highly acceptable, irrespective of test result and testing history. The eSHC results service afforded users privacy and control over when they viewed results without compromising access. PMID- 29326181 TI - What are the sources of stress and distress for general practitioners working in England? A qualitative study. AB - OBJECTIVES: This paper reports the sources of stress and distress experienced by general practitioners (GP) as part of a wider study exploring the barriers and facilitators to help-seeking for mental illness and burnout among this medical population. DESIGN: Qualitative study using in-depth interviews with 47 GP participants. The interviews were audio-recorded, transcribed, anonymised and imported into NVivo V.11 to facilitate data management. Data were analysed using a thematic analysis employing the constant comparative method. SETTING: England. PARTICIPANTS: A purposive sample of GP participants who self-identified as: (1) currently living with mental distress, (2) returning to work following treatment, (3) off sick or retired early as a result of mental distress or (4) without experience of mental distress. Interviews were conducted face-to-face or over the telephone. RESULTS: The key sources of stress/distress related to: (1) emotion work-the work invested and required in managing and responding to the psychosocial component of GPs' work, and dealing with abusive or confrontational patients; (2) practice culture-practice dynamics and collegial conflict, bullying, isolation and lack of support; (3) work role and demands-fear of making mistakes, complaints and inquests, revalidation, appraisal, inspections and financial worries. CONCLUSION: In addition to addressing escalating workloads through the provision of increased resources, addressing unhealthy practice cultures is paramount. Collegial support, a willingness to talk about vulnerability and illness, and having open channels of communication enable GPs to feel less isolated and better able to cope with the emotional and clinical demands of their work. Doctors, including GPs, are not invulnerable to the clinical and emotional demands of their work nor the effects of divisive work cultures-culture change and access to informal and formal support is therefore crucial in enabling GPs to do their job effectively and to stay well. PMID- 29326180 TI - Prevalence and burden of chronic kidney disease among the general population and high-risk groups in Africa: a systematic review. AB - OBJECTIVES: While increasing attention is paid to the rising prevalence of chronic diseases in Africa, there is little focus on chronic kidney disease (CKD). This systematic review assesses CKD burden among the general population and high-risk groups on the entire African continent. DESIGN, SETTING AND PARTICIPANTS: We searched Medline and PubMed databases for articles published between 1 January 1995 and 7 April 2017 by sensitive search strategies focusing on CKD surveys at the community level and high-risk groups. In total, 7918 references were evaluated, of which 7766 articles were excluded because they did not meet the inclusion criteria. Thus, 152 studies were included in the final analysis. OUTCOME MEASUREMENT: The prevalence of CKD in each study group was expressed as a range and pooled prevalence rate of CKD was calculated as a point estimate and 95% CI. No meta-analysis was done. Data were presented for different populations. RESULTS: In the community-level studies, based on available medium quality and high-quality studies, the prevalence of CKD ranged from 2% to 41% (pooled prevalence: 10.1%; 95% CI 9.8% to 10.5%). The prevalence of CKD in the high-risk groups ranged from 1% to 46% (pooled prevalence: 5.6%; 95% CI 5.4% to 5.8%) in patients with HIV (based on available medium-quality and high-quality studies), 11%-90% (pooled prevalence: 24.7%; 95% CI 23.6% to 25.7%) in patients with diabetes (based on all available studies which are of low quality except four of medium quality) and 13%-51% (pooled prevalence: 34.5%; 95 % CI 34.04% to 36%) in patients with hypertension (based on all available studies which are of low quality except two of medium quality). CONCLUSION: In Africa, CKD is a public health problem, mainly attributed to high-risk conditions as hypertension and diabetes. The poor data quality restricts the validity of the findings and draws the attention to the importance of designing future robust studies. PMID- 29326183 TI - Transvaginal natural orifice transluminal endoscopic surgery (vNOTES) adnexectomy for benign pathology compared with laparoscopic excision (NOTABLE): a protocol for a randomised controlled trial. AB - INTRODUCTION: Natural orifice transluminal endoscopic surgery (NOTES) uses natural orifices to access the cavities of the human body to perform surgical interventions. NOTES limits the magnitude of surgical trauma and potentially reduces postoperative pain. Our group published a protocol on a randomised study comparing transvaginal NOTES (vNOTES) versus laparoscopy for hysterectomy (HALON). We simultaneously designed a similar randomised controlled trial (RCT) comparing vNOTES with laparoscopy for adnexectomy. To the best of our knowledge, this is the first RCT comparing vNOTES with laparoscopy for adnexal surgery. METHODS AND ANALYSIS: The methodology of the Notes Adnexectomy for Benign Indication versus Laparoscopic Excision (NOTABLE) study is similar to that of the HALON trial. Women aged 18-70 years with an indication for benign adnexal surgery will be eligible. We will use stratification according to adnexal size. Entrants will be randomised to the laparoscopic treatment (control) or vNOTES (intervention). Participants will be evaluated on days 0-7 and at 3 and 6 months. The primary outcome will be the proportion of women successfully treated by removing an adnexa by the allocated technique without conversion. We will collect the following data (secondary outcomes): proportion of women hospitalised on the day of surgery, postoperative pain scores measured two times per day from day 1 to 7, total dosage of pain killers used from day 1 to 7, hospital readmission during the first 6 weeks, dyspareunia and sexual well-being at baseline, 3 and 6 months using a validated questionnaire (Short Sexual Functioning Scale), health related quality of life at baseline, 3 and 6 months after surgery using a validated questionnaire (EQ-5D-3L), duration of surgical intervention, infection or other surgical complications and direct costs up to 6 weeks following surgery. For the primary outcome measure, a one-sided 95% CI of the difference in the proportions of women with a successful removal of the uterus by the randomised technique will be estimated. Non-inferiority will be concluded when 15% lies above the upper limit of this 95% CI. ETHICS AND DISSEMINATION: The study was approved on 1 December 2015 by the EthicsCommitteeof the Imelda Hospital (registration no: 689), Bonheiden, Belgium. We aim to present the final results of the NOTABLE trial in peer-reviewed journals and at scientific meetings within 4 years after the start of the recruitment. TRIAL REGISTRATION NUMBER: NCT02630329. PMID- 29326182 TI - Variations in childbirth interventions in high-income countries: protocol for a multinational cross-sectional study. AB - INTRODUCTION: There are growing concerns about the increase in rates of commonly used childbirth interventions. When indicated, childbirth interventions are crucial for preventing maternal and perinatal morbidity and mortality, but their routine use in healthy women and children leads to avoidable maternal and neonatal harm. Establishing ideal rates of interventions can be challenging. This study aims to describe the range of variations in the use of commonly used childbirth interventions in high-income countries around the world, and in outcomes in nulliparous and multiparous women. METHODS AND ANALYSIS: This multinational cross-sectional study will use data from births in 2013 with national population data or representative samples of the population of pregnant women in high-income countries. Data from women who gave birth to a single child from 37 weeks gestation onwards will be included and the results will be presented for nulliparous and multiparous women separately. Anonymised individual level data will be analysed. Primary outcomes are rates of commonly used childbirth interventions, including induction and/or augmentation of labour, intrapartum antibiotics, epidural and pharmacological pain relief, episiotomy in vaginal births, instrument-assisted birth (vacuum or forceps), caesarean section and use of oxytocin postpartum. Secondary outcomes are maternal and perinatal mortality, Apgar score below 7 at 5 min, postpartum haemorrhage and obstetric anal sphincter injury. Univariable and multivariable logistic regression analyses will be conducted to investigate variations among countries, adjusted for maternal age, body mass index, gestational weight gain, ethnic background, socioeconomic status and infant birth weight. The overall mean rates will be considered as a reference category, weighted for the size of the study population per country. ETHICS AND DISSEMINATION: The Medical Ethics Review Committee of VU University Medical Center Amsterdam confirmed that an official approval of this study was not required. Results will be disseminated at national and international conferences and published in peer-reviewed journals. PMID- 29326184 TI - Assessing the effectiveness of a patient-centred computer-based clinic intervention, Health-E You/Salud iTu, to reduce health disparities in unintended pregnancies among Hispanic adolescents: study protocol for a cluster randomised control trial. AB - INTRODUCTION: Teen pregnancy rates in the USA remain higher than any other industrialised nation, and pregnancies among Hispanic adolescents are disproportionately high. Computer-based interventions represent a promising approach to address sexual health and contraceptive use disparities. Preliminary findings have demonstrated that the Health-E You/Salud iTu, computer application (app) is feasible to implement, acceptable to Latina adolescents and improves sexual health knowledge and interest in selecting an effective contraceptive method when used in conjunction with a healthcare visit. The app is now ready for efficacy testing. The purpose of this manuscript is to describe patient-centred approaches used both in developing and testing the Health-E You app and to present the research methods used to evaluate its effectiveness in improving intentions to use an effective method of contraception as well as actual contraceptive use. METHODS AND ANALYSIS: This study is designed to assess the effectiveness of a patient-centred computer-based clinic intervention, Health-E You/Salud iTu, on its ability to reduce health disparities in unintended pregnancies among Latina adolescent girls. This study uses a cluster randomised control trial design in which 18 school-based health centers from the Los Angeles Unified School District were randomly assigned, at equal chance, to either the intervention (Health-E You app) or control group. Analyses will examine differences between the control and intervention group's knowledge of and attitudes towards contraceptive use, receipt of contraception at the clinic visit and self-reported use of contraception at 3-month and 6-month follow-ups. The study began enrolling participants in August 2016, and a total of 1400 participants (700 per treatment group) are expected to be enrolled by March 2018. ETHICS AND DISSEMINATION: Ethics approval was obtained through the University of California, San Francisco Institutional Review Board. Results of this trial will be submitted for publication in peer-reviewed journals. This study is registered with the US National Institutes of Health. TRIAL REGISTRATION NUMBER: NCT02847858. PMID- 29326186 TI - Factors associated with neonatal pneumonia in India: protocol for a systematic review and planned meta-analysis. AB - INTRODUCTION: India accounts for more neonatal deaths than any other country. There is a lack of consolidated evidence from India regarding the determining factors of pneumonia in neonates. This systematic review is aimed to consolidate and appraise the evidence on risk factors and determinants of pneumonia among neonates in India. METHODS AND ANALYSIS: This protocol is part of a project consisting of three reviews (two systematic reviews and one scoping review) and a qualitative study on neonatal pneumonia in India. English language observational studies which report risk factors and determinants of neonatal pneumonia in India will be eligible for inclusion. Electronic searching of nine databases, and hand searching will be done. Two authors will independently conduct screening (title, abstract and full-text stages), extract data and assess risk of bias. A meta analysis is planned to be performed with random-effects model. A narrative synthesis will be used to summarise the characteristics and findings of the review, if a meta-analysis cannot be performed. If there are more than 10 studies, publication bias will be assessed. Sensitivity and subgroup analysis will performed based on data availability. The quality of our review will be assessed by using 'Assessing the Methodological quality of Systematic Reviews' and 'Grades of Recommendation, Assessment, Development and Evaluation'. ETHICS AND DISSEMINATION: The protocol of the entire project has been approved by the host institution's ethics body (Institutional Ethics Committee, Manipal University, Manipal, India), and the 'Health Ministry Screening Committee' under the Ministry of Health and Family Welfare, Government of India. The study findings will be disseminated among relevant stakeholders using knowledge dissemination workshops, policy briefs, publications, etc. PROSPERO REGISTRATION NUMBER: CRD42016044019. PMID- 29326185 TI - Enhancing prescribing of guideline-recommended medications for ischaemic heart diseases: a systematic review and meta-analysis of interventions targeted at healthcare professionals. AB - OBJECTIVES: Ischaemic heart diseases (IHDs) are a leading cause of death worldwide. Although prescribing according to guidelines improves health outcomes, it remains suboptimal. We determined whether interventions targeted at healthcare professionals are effective to enhance prescribing and health outcomes in patients with IHDs. METHODS: We systematically searched PubMed and EMBASE for studies published between 1 January 2000 and 31 August 2017. We included original studies of interventions targeted at healthcare professionals to enhance prescribing guideline-recommended medications for IHDs. We only included randomised controlled trials (RCTs). Main outcomes were the proportion of eligible patients receiving guideline-recommended medications, the proportion of patients achieving target blood pressure and target low-density lipoprotein cholesterol (LDL-C)/cholesterol level and mortality rate. Meta-analyses were performed using the inverse-variance method and the random effects model. The quality of evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation approach. RESULTS: We included 13 studies, 4 RCTs (1869 patients) and 9 cluster RCTs (15 224 patients). 11 out of 13 studies were performed in North America and Europe. Interventions were of organisational or professional nature. The interventions significantly enhanced prescribing of statins/lipid-lowering agents (OR 1.23; 95% CI 1.07 to 1.42, P=0.004), but not other medications (aspirin/antiplatelet agents, beta-blockers, ACE inhibitors/angiotensin II receptor blockers and the composite of medications). There was no significant association between the interventions and improved health outcomes (target LDL-C and mortality) except for target blood pressure (OR 1.46; 95% CI 1.11 to 1.93; P=0.008). The evidence was of moderate or high quality for all outcomes. CONCLUSIONS: Organisational and professional interventions improved prescribing of statins/lipid-lowering agents and target blood pressure in patients with IHDs but there was little evidence of change in other outcomes. PROSPERO REGISTRATION NUMBER: CRD42016039188. PMID- 29326187 TI - Pilot study protocol to inform a future longitudinal study of ageing using linked administrative data: Healthy AGeing in Scotland (HAGIS). AB - INTRODUCTION: Population ageing is a welcome testament to improvements in the social, economic and health circumstances over the life course. However, these successes necessitate that we understand more about the pathways of ageing to plan and cost our health and social care services, to support our ageing population to live healthier for longer and to make adequate provisions for retirement. Longitudinal studies of ageing facilitate such understanding in many countries around the world. Scotland presently does not have a longitudinal study of ageing, despite dramatic increases to its ageing population and its poor health record. Healthy AGeing in Scotland (HAGIS) constitutes the launch of Scotland's first comprehensive longitudinal study of ageing. METHODS: A sample of 1000 people aged 50+ years will be invited to take part in a household social survey. The innovative sampling procedure used administrative data to identify eligible households. Anonymised survey responses will be linked to administrative data. ETHICS AND DISSEMINATION: Ethics approval was obtained from the host institution for the study design and from the Public Benefits and Privacy Panel for administrative data linkage. Anonymised survey data will be deposited with the UK Data Service. A subset of survey data, harmonised with other global ageing studies, will be available via the Gateway to Global Aging platform. These data will enable powerful cross-country comparisons across the social, economic and health domains that will be relevant for national and international research.Research publications from the HAGIS team will be disseminated through journal articles and national and international conferences. The findings will support current and future research and policy debate on ageing populations. PMID- 29326188 TI - Managing cognitive impairment following stroke: protocol for a systematic review of non-randomised controlled studies of psychological interventions. AB - INTRODUCTION: Stroke is one of the primary causes of death and disability worldwide, leaving a considerable proportion of survivors with persistent cognitive and functional deficits. Despite the prevalence of poststroke cognitive impairment, there is no established treatment aimed at improving cognitive function following a stroke. Therefore, the aims of this systematic review are to identify psychological interventions intended to improve poststroke cognitive function and establish their efficacy. METHODS AND ANALYSIS: A systematic review of non-randomised controlled studies that investigated the efficacy of psychological interventions aimed at improving cognitive function in stroke survivors will be conducted. Electronic searches will be performed in the PubMed, Embase and PsycINFO databases, the search dating from the beginning of the index to February 2017. Reference lists of all identified relevant articles will be reviewed to identify additional studies not previously identified by the electronic search. Potential grey literature will be reviewed using Google Scholar. Titles and abstracts will be assessed for eligibility by one reviewer, with a random sample of 50% independently double-screened by second reviewers. Any discrepancies will be resolved through discussion, with referral to a third reviewer where necessary. Risk of bias will be assessed with the Risk of Bias in Non-randomized Studies of Interventions tool. Meta-analyses will be performed if studies are sufficiently homogeneous. This review will follow the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. The quality of the evidence regarding cognitive function will be assessed according to the Grading of Recommendations Assessment, Development and Evaluation. ETHICS AND DISSEMINATION: This systematic review will collect secondary data only and as such ethical approval is not required. Findings will be disseminated through presentations and peer-reviewed publication. This review will provide information on the effectiveness of psychological interventions for poststroke cognitive impairment, identifying which psychological interventions are effective for improving poststroke cognitive function. PROSPERO REGISTRATION NUMBER: CRD42017069714. PMID- 29326189 TI - Period prevalence, risk factors and consequent injuries of falling among the Saudi elderly living in Riyadh, Saudi Arabia: a cross-sectional study. AB - OBJECTIVES: Approximately 28% to 35% of people aged 65 and over fall each year. The consequent injuries of falls are considered a major public health problem. Falls account for more than half of injury-related hospitalisations among old people. The aim of this study was to measure a 1-year period prevalence of falling among old people in Riyadh, Saudi Arabia. In addition, this study described the most common risk factors and consequent injuries of falls. SETTING AND PARTICIPANTS: A cross-sectional survey was carried out in Riyadh, using a convenient sampling. The targeted population were Saudi citizens who were 60 years or above. Over a 6-month period, 1182 individuals were sampled (545 men and 637 women). RESULTS: The 1-year prevalence of falling among old Saudis (>=60 years) was 49.9%. Our results show that 74% of the participants who experienced falls had postfall injuries. Old participants who were uneducated and those with middle school certification were associated with falls (adjusted OR (aOR) 1.72; 95% CI 1.15 to 2.56, aOR 1.81; 95% CI 1.15 to 2.85, respectively). Those who live in rented houses had a higher risk of falls. Interestingly, having a caregiver was significantly associated with more falls (aOR 1.39; 95% CI 1.08 to 1.79). However, not using any medications was significantly related to fewer falls. In addition, old individuals using walking aids were more likely to fall than those who did not. Participants who mentioned 'not having stressors were associated with less frequent falls (aOR 0.62; 95% CI 0.39 to 0.97). Cerebrovascular accidents were strongly associated with falls with an estimated OR of 2.75 (95% CI 1.18 to 6.43). Moreover, osteoporosis, poor vision and back pain were found to be predictors for falls among the elderly. CONCLUSION: 49.9% of elderly Saudis had experienced one or more falls during a 12-month period. Several preventable risk factors could be addressed by routine geriatric assessment. Research on the impact of these risk factors is needed. PMID- 29326190 TI - A qualitative study of patients' feedback about Outpatient Parenteral Antimicrobial Therapy (OPAT) services in Northern England: implications for service improvement. AB - OBJECTIVE: Outpatient parenteral antimicrobial therapy (OPAT) provides opportunities for improved cost savings, but in the UK, implementation is patchy and a variety of service models are in use. The slow uptake in the UK and Europe is due to a number of clinical, financial and logistical issues, including concern about patient safety. The measurement of patient experience data is commonly used to inform commissioning decisions, but these focus on functional aspects of services and fail to examine the relational aspects of care. This qualitative study examines patients' experiences of OPAT. DESIGN: In-depth, semistructured interviews. SETTING: Purposive sample of OPAT patients recruited from four acute National Health Service (NHS) Trusts in Northern England. These NHS Trusts between them represented both well-established and recently set-up services running nurse at home, hospital outpatient and/or self-administration models. PARTICIPANTS: We undertook 28 semistructured interviews and one focus group (n=4). RESULTS: Despite good patient outcomes, experiences were coloured by patients' personal situation and material circumstances. Many found looking after themselves at home more difficult than they expected, while others continued to work despite their infection. Expensive car parking, late running services and the inconvenience of waiting in for the nurse to arrive frustrated patients, while efficient services, staffed by nurses with the specialist skills needed to manage intravenous treatment had the opposite effect. Many patients felt a local, general practitioner or community health centre based service would resolve many of the practical difficulties that made OPAT inconvenient. Patients could find OPAT anxiety provoking but this could be ameliorated by staff taking the time to reassure patients and provide tailored information. CONCLUSION: Services configurations must accommodate the diversity of the local population. Poor communication can leave patients lacking the confidence needed to be a competent collaborator in their own care and affect their perceptions of the service. PMID- 29326191 TI - Establishing anchor-based minimally important differences (MID) with the EORTC quality-of-life measures: a meta-analysis protocol. AB - INTRODUCTION: As patient assessment of health-related quality of life (HRQOL) in cancer clinical trials has increased over the years, so has the need to attach meaningful interpretations to differences in HRQOL scores between groups and changes within groups. Determining what represents a minimally important difference (MID) in HRQOL scores is useful to clinicians, patients and researchers, and can be used as a benchmark for assessing the success of a healthcare intervention. Our objective is to provide an evidence-based protocol to determine MIDs for the European Organisation for Research and Treatment for Cancer Quality of life Questionnaire core 30 (EORTC QLQ-C30). We will mainly focus on MID estimation for group-level comparisons. Responder thresholds for individual-level change will also be estimated. METHODS AND ANALYSIS: Data will be derived from published phase II and III EORTC trials that used the QLQ-C30 instrument, covering several cancer sites. We will use individual patient data to estimate MIDs for different cancer sites separately. Focus is on anchor-based methods. Anchors will be selected per disease site from available data. A disease oriented and methodological panel will provide independent guidance on anchor selection. We aim to construct multiple clinical anchors per QLQ-C30 scale and also to compare with several anchor-based methods. The effects of covariates, for example, gender, age, disease stage and so on, will also be investigated. We will examine how our estimated MIDs compare with previously published guidelines, hence further contributing to robust MID guidelines for the EORTC QLQ-C30. ETHICS AND DISSEMINATION: All patient data originate from completed clinical trials with mandatory written informed consent, approved by local ethical committees. Our findings will be presented at scientific conferences, disseminated via peer reviewed publications and also compiled in a MID 'blue book' which will be made available online on the EORTC Quality of Life Group website as a free guideline document. PMID- 29326193 TI - Patient satisfaction with hospital care and nurses in England: an observational study. AB - OBJECTIVES: To inform healthcare workforce policy decisions by showing how patient perceptions of hospital care are associated with confidence in nurses and doctors, nurse staffing levels and hospital work environments. DESIGN: Cross sectional surveys of 66 348 hospital patients and 2963 inpatient nurses. SETTING: Patients surveyed were discharged in 2010 from 161 National Health Service (NHS) trusts in England. Inpatient nurses were surveyed in 2010 in a sample of 46 hospitals in 31 of the same 161 trusts. PARTICIPANTS: The 2010 NHS Survey of Inpatients obtained information from 50% of all patients discharged between June and August. The 2010 RN4CAST England Nurse Survey gathered information from inpatient medical and surgical nurses. MAIN OUTCOME MEASURES: Patient ratings of their hospital care, their confidence in nurses and doctors and other indicators of their satisfaction. Missed nursing care was treated as both an outcome measure and explanatory factor. RESULTS: Patients' perceptions of care are significantly eroded by lack of confidence in either nurses or doctors, and by increases in missed nursing care. The average number of types of missed care was negatively related to six of the eight outcomes-ORs ranged from 0.78 (95% CI 0.68 to 0.90) for excellent care ratings to 0.86 (95% CI 0.77 to 0.95) for medications completely explained-positively associated with higher patient-to-nurse ratios (b=0.15, 95% CI 0.10 to 0.19), and negatively associated with better work environments (b=-0.26, 95% CI -0.48 to -0.04). CONCLUSIONS: Patients' perceptions of hospital care are strongly associated with missed nursing care, which in turn is related to poor professional nurse (RN) staffing and poor hospital work environments. Improving RN staffing in NHS hospitals holds promise for enhancing patient satisfaction. PMID- 29326192 TI - Evidence for sample selection effect and Hawthorne effect in behavioural HIV prevention trial among young women in a rural South African community. AB - OBJECTIVES: We examined the potential influence of both sample selection effects and Hawthorne effects in the behavioural HIV Prevention Trial Network 068 study, designed to examine whether cash transfers conditional on school attendance reduce HIV acquisition in young South African women. We explored whether school enrolment among study participants differed from the underlying population, and whether differences existed at baseline (sample selection effect) or arose during study participation (Hawthorne effect). METHODS: We constructed a cohort of 3889 young women aged 11-20 years using data from the Agincourt Health and socio Demographic Surveillance System. We compared school enrolment in 2011 (trial start) and 2015 (trial end) between those who did (n=1720) and did not (n=2169) enrol in the trial. To isolate the Hawthorne effect, we restricted the cohort to those enrolled in school in 2011. RESULTS: In 2011, trial participants were already more likely to be enrolled in school (99%) compared with non-participants (93%). However, this association was attenuated with covariate adjustment (adjusted risk difference (aRD) (95% CI): 2.9 (- 0.7 to 6.5)). Restricting to those enrolled in school in 2011, trial participants were also more likely to be enrolled in school in 2015 (aRD (95% CI): 4.9 (1.5 to 8.3)). The strength of associations increased with age. CONCLUSIONS: Trial participants across both study arms were more likely to be enrolled in school than non-participants. Our findings suggest that both sample selection and Hawthorne effects may have diminished the differences in school enrolment between study arms, a plausible explanation for the null trial findings. The Hawthorne-specific findings generate hypotheses for how to structure school retention interventions to prevent HIV. PMID- 29326194 TI - Association of erythrocyte parameters with metabolic syndrome in the Pearl River Delta region of China: a cross sectional study. AB - OBJECTIVE: Increasing studies have reported that erythrocyte parameters, including red blood cells (RBCs), haematocrit (HCT), haemoglobin (Hb) and red blood cell distribution width (RDW), are associated with metabolic syndrome (MetS) in adults worldwide. However, the association, stratified by sex, remains to be elucidated, particularly in the Pearl River Delta region of China. Therefore, our aim was to explore the association of erythrocyte parameters with MetS, stratified by sex, in the Pearl River Delta region of China. METHODS: In this cross sectional study, 2161 men and 2511 women were enrolled. MetS was diagnosed using a modified version of the Adult Treatment Panel III criteria. Logistic regression analyses were performed to calculate adjusted ORs of erythrocyte parameters associated with MetS stratified by sex. RESULTS: The prevalence of MetS was higher in women than in men (35.2%vs26.7%). RBC, HCT, Hb and RDW values increased linearly with the number of MetS components from 0 to 5 identified in both men and women. Among men, the ORs of MetS risk increased across the tertiles of Hb (Q2: OR=1.921, 95% CI=1.170 to 3.151; Q3: OR=1.992, 95%CI=1.198 to 3.312). Men in the highest tertiles of RDW had a 2.752-fold increased risk of suffering from MetS compared with those in the reference group. Among women, the ORs of MetS risk also increased across the tertiles of Hb (Q2: OR=1.538, 95%CI=1.008 to 2.348; Q3: OR=1.665, 95%CI=1.075 to 2.578). Women in the highest tertiles of RBC had a 1.718-fold increased risk of experiencing MetS compared with those in the reference group. CONCLUSIONS: MetS was more prevalent in women than in men. The association between erythrocyte parameters and MetS differed between the sexes. RBC and Hb were identified as risk factors for MetS in women and Hb and RDW as risk factors in men. PMID- 29326195 TI - Why do GPs leave direct patient care and what might help to retain them? A qualitative study of GPs in South West England. AB - OBJECTIVE: To identify factors influencing general practitioners' (GPs') decisions about whether or not to remain in direct patient care in general practice and what might help to retain them in that role. DESIGN: Qualitative, in depth, individual interviews exploring factors related to GPs leaving, remaining in and returning to direct patient care. SETTING: South West England, UK. PARTICIPANTS: 41 GPs: 7 retired; 8 intending to take early retirement; 11 who were on or intending to take a career break; 9 aged under 50 years who had left or were intending to leave direct patient care and 6 who were not intending to leave or to take a career break. Plus 19 stakeholders from a range of primary care-related professional organisations and roles. RESULTS: Reasons for leaving direct patient care were complex and based on a range of job-related and individual factors. Three key themes underpinned the interviewed GPs' thinking and rationale: issues relating to their personal and professional identity and the perceived value of general practice-based care within the healthcare system; concerns regarding fear and risk, for example, in respect of medical litigation and managing administrative challenges within the context of increasingly complex care pathways and environments; and issues around choice and volition in respect of personal social, financial, domestic and professional considerations. These themes provide increased understanding of the lived experiences of working in today's National Health Service for this group of GPs. CONCLUSION: Future policies and strategies aimed at retaining GPs in direct patient care should clarify the role and expectations of general practice and align with GPs' perception of their own roles and identity; demonstrate to GPs that they are valued and listened to in planning delivery of the UK healthcare; target GPs' concerns regarding fear and risk, seeking to reduce these to manageable levels and give GPs viable options to support them to remain in direct patient care. PMID- 29326196 TI - Young adults' perspectives on living with kidney failure: a systematic review and thematic synthesis of qualitative studies. AB - INTRODUCTION: Young adults fare worse than younger adolescents or older adults on a broad range of health indicators. Those with a chronic illness such as renal failure are a particularly vulnerable group, who experience poor outcomes compared with both children and older adults. Understanding how being in receipt of renal replacement therapy (RRT) affects the lives of young adults might help us to better prepare and support these individuals for and on RRT, and improve outcomes. This study aimed to synthesise research describing young adults' experiences of the psychosocial impact of kidney failure and RRT. DESIGN: A systematic literature review identified qualitative research reporting the perspectives of people aged 16-30 years receiving RRT on the psychosocial impact of renal failure. Electronic databases (including Medline/EMBASE/PsycINFO/ASSIA) were searched to November 2017 for full-text papers. The transparency of reporting of each study was assessed using the Consolidated Criteria for Reporting Qualitative Health Research (COREQ) framework. Quality was assessed using the Critical Appraisal Skills Programme qualitative checklist. An inductive thematic synthesis was undertaken. PARTICIPANTS: Seven studies from five different countries were included, comprising 123 young adults receiving RRT. RESULTS: Comprehensiveness of reporting was variable: studies reported 9-22 of the 32 COREQ-checklist items.Three global themes about the impact of kidney failure on young adults were identified: (1) difference desiring normality, (2) thwarted or moderated dreams and ambitions, and (3) uncertainty and liminality. These reflected five organising themes: (1) physical appearance and body image, (2) activity and participation, (3) educational disruption and underachievement, (4) career ambitions and employment difficulties, and (5) social isolation and intimate relationships. CONCLUSIONS: Across different countries and different healthcare settings, young adults on RRT experience difference and liminality, even after transplantation. Tailored social and psychological support is required to allow young adults to experience wellness while in receipt of RRT, and not have life on hold. PMID- 29326197 TI - PARENTS 2 study protocol: pilot of Parents' Active Role and ENgagement in the review of Their Stillbirth/perinatal death. AB - BACKGROUND: The perinatal mortality review meeting that takes place within the hospital following a stillbirth or neonatal death enables clinicians to learn vital lessons to improve care for women and their families for the future. Recent evidence suggests that parents are unaware that a formal review following the death of their baby takes place. Many would welcome the opportunity to feedback into the meeting itself. Parental involvement in the perinatal mortality review meeting has the potential to improve patient satisfaction, drive improvements in patient safety and promote an open culture within healthcare. Yet evidence on the feasibility of involving bereaved parents in the review process is lacking. This paper describes the protocol for the Parents' Active Role and Engangement iN the review of their Stillbirth/perinatal death study (PARENTS 2) , whereby healthcare professionals' and stakeholders' perceptions of parental involvement will be investigated, and parental involvement in the perinatal mortality review will be piloted and evaluated at two hospitals. METHODS AND ANALYSIS: We will investigate perceptions of parental involvement in the perinatal mortality review process by conducting four focus groups. A three-round modified Delphi technique will be employed to gain a consensus on principles of parental involvement in the perinatal mortality review process. We will use three sequential rounds, including a national consensus meeting workshop with experts in stillbirth, neonatal death and bereavement care, and a two-stage anonymous online questionnaire. We will pilot a new perinatal mortality review process with parental involvement over a 6-month study period. The impact of the new process will be evaluated by assessing parents' experiences of their care and parents' and staff perceptions of their involvement in the process by conducting further focus groups and using a Parent Generated Index questionnaire. ETHICS AND DISSEMINATION: This study has ethical approval from the UK Health Research Authority. We will disseminate the findings through national and international conferences and international peer-reviewed journals. PMID- 29326198 TI - Genome Sequence of a Novel Strain of a Phasi Charoen-Like Virus Identified in Zhanjiang, China. AB - Here, we report the genome sequence of a novel strain of a Phasi Charoen-like virus, isolated from Aedes aegypti mosquitoes caught in Zhanjiang province of China. Phylogenetic analysis suggested that this virus belongs to a new genus, Goukovirus, in the family Bunyaviridae This is the first reported genome sequence of a Phasi Charoen-like virus identified in China. PMID- 29326200 TI - Complete Genome Sequence of a Bacteriophage, pVco-5, That Infects Vibrio coralliilyticus, Which Causes Bacillary Necrosis in Pacific Oyster (Crassostrea gigas) Larvae. AB - We report here the complete genome sequence of the Vibrio coralliilyticus specific phage pVco-5, a double-stranded DNA virus isolated from an oyster hatchery tank. Vibrio coralliilyticus causes bacillary necrosis in marine bivalve larvae; hence, phage pVco-5 could be used to prevent V. coralliilyticus infections in these larvae. PMID- 29326199 TI - Genome Sequences of Four Cluster P Mycobacteriophages. AB - Four bacteriophages infecting Mycobacterium smegmatis mc2155 (three belonging to subcluster P1 and one belonging to subcluster P2) were isolated from soil and sequenced. All four phages are similar in the left arm of their genomes, but the P2 phage differs in the right arm. All four genomes contain features of temperate phages. PMID- 29326202 TI - Genome Sequence of Galleria mellonella (Greater Wax Moth). AB - The larvae of the greater wax moth, Galleria mellonella, are pests of active beehives. In infection biology, these larvae are playing a more and more attractive role as an invertebrate host model. Here, we report on the first genome sequence of Galleria mellonella. PMID- 29326201 TI - Eight Genome Sequences of Cluster BE1 Phages That Infect Streptomyces Species. AB - Cluster BE1 Streptomyces bacteriophages belong to the Siphoviridae, with genome sizes over 130 kbp, and they contain direct terminal repeats of approximately 11 kbp. Eight newly isolated closely related cluster BE1 phages contain 43 to 48 tRNAs, one transfer-messenger RNA (tmRNA), and 216 to 236 predicted open reading frames (ORFs), but few of their genes are shared with other phages, including those infecting Streptomyces species. PMID- 29326203 TI - High-Quality Whole-Genome Sequences for 21 Enterotoxigenic Escherichia coli Strains Generated with PacBio Sequencing. AB - Enterotoxigenic Escherichia coli (ETEC) is an important diarrheagenic pathogen. We report here the high-quality whole-genome sequences of 21 ETEC strains isolated from patients in the United States, international diarrheal surveillance studies, and cruise ship outbreaks. PMID- 29326204 TI - Draft Genome Sequence of Brevibacillusreuszeri Strain NIT02, Isolated from a Laundered Rental Cloth Hot Towel. AB - Brevibacillus reuszeri is a Gram-positive spore-forming bacterium. Here, we present the draft genome sequence of Brevibacillus reuszeri strain NIT02, which was isolated from a laundered rental cloth hot towel. PMID- 29326205 TI - Complete Genome Sequence of the Escherichia coli Phage Ayreon. AB - We report the whole-genome sequence of a new Escherichia coli temperate phage, Ayreon, comprising a linear double-stranded DNA (dsDNA) genome of 44,708 bp. PMID- 29326206 TI - Whole-Genome Draft Sequences of Nine Asymptomatic Escherichia coli Bacteriuria Isolates from Diabetic Patients. AB - Escherichia coli can colonize the urinary bladder without causing a disease response in the host. This asymptomatic bacteriuria (ABU) can protect against recurrent symptomatic urinary tract infection by virulent bacteria. Here, we report the whole-genome sequences of nine E. coli ABU isolates from diabetic patients. PMID- 29326207 TI - Complete Genome Sequence of Bacteriophage St11Ph5, Which Infects Uropathogenic Escherichia coli Strain up11. AB - Bacteriophage St11Ph5 was isolated from a sewage sample on a particularly phage resistant uropathogenic Escherichia coli (UPEC) up11 host strain. It appeared to be closely related to bacteriophage G7C, isolated from horse feces; however, it carries a highly divergent host recognition module. PMID- 29326208 TI - Draft Genome Sequence of the Filamentous Fungus Hypoxylon pulicicidum ATCC 74245. AB - Hypoxylon pulicicidum strain MF5954 (ATCC 74245) (formerly classified as Nodulisporium sp.) is a filamentous fungal species known for its production of the secondary metabolite nodulisporic acid A. We present here the 41.5-Mb draft genome sequence for this organism. PMID- 29326209 TI - Complete Genome Sequence of Escherichia coli Strain WG5. AB - Escherichia coli strain WG5 is a widely used host for phage detection, including somatic coliphages employed as standard ISO method 10705-1 (2000). Here, we present the complete genome sequence of a commercial E. coli WG5 strain. PMID- 29326210 TI - Complete Genome Sequencing of Acinetobacter sp. Strain LoGeW2-3, Isolated from the Pellet of a White Stork, Reveals a Novel Class D Beta-Lactamase Gene. AB - Whole-genome sequencing of Acinetobacter sp. strain LoGeW2-3, isolated from the pellet of a white stork (Ciconia ciconia), reveals the presence of a plasmid of 179,399 bp encoding a CRISPR-Cas (clustered regularly interspaced short palindromic repeats and associated genes) system of the I-F type, and the chromosomally encoded novel class D beta-lactamase OXA-568. PMID- 29326211 TI - Draft Whole-Genome Sequence of Deinococcus sp. UR1, a Putative Novel Species Isolated from an External Stainless Steel Surface in the Canadian Prairies. AB - Deinococcus sp. strain UR1, a resilient bacterium isolated from the surface of a stainless steel sign located on the University of Regina campus in Saskatchewan, Canada, was sequenced to 56-fold coverage to produce 73 contigs with a consensus length of 4,472,838 bp and a G+C content of 69.37%. PMID- 29326212 TI - Complete Genome Sequence of Thermoanaerobacterium sp. Strain RBIITD, a Butyrate- and Butanol-Producing Thermophile. AB - Thermoanaerobacterium sp. strain RBIITD was isolated from contaminated rich growth medium at 55 degrees C in an anaerobic chamber. It primarily produces butyrate as a fermentation product from plant biomass-derived sugars. The whole genome sequence of the strain is 3.4 Mbp, with 3,444 genes and 32.48% GC content. PMID- 29326213 TI - Complete Genome Sequence of Chryseobacterium camelliae Dolsongi-HT1, a Green Tea Isolate with Keratinolytic Activity. AB - The complete genome sequence of Chryseobacterium camelliae Dolsongi-HT1 is reported here. C. camelliae Dolsongi-HT1, having keratinolytic activity, was isolated from green tea leaves in the Dolsongi tea garden in Jeju, South Korea. The strain Dolsongi-HT1 has 28 candidate protease genes, which may be utilized in further studies and industrial applications of keratinase. PMID- 29326214 TI - Whole-Genome Sequences of Brucella melitensis Strain QH61, Isolated from Yak in Qinghai, China. AB - The facultative intracellular Gram-negative bacterium Brucella melitensis causes brucellosis in domestic and wild mammals. Brucella melitensis QH61 was isolated from a yak suffering from abortion in 2015 in Qinghai, China. Here, we report the whole-genome sequence of B. melitensis strain QH61. PMID- 29326215 TI - Draft Genome Sequence of Talaromyces adpressus. AB - Here we present the draft genome sequence of the fungus Talaromyces adpressus A T1C-84X (=CBS 142503). This strain was isolated from lignocellulosic biomass of Arundo donax during biodegradation under natural conditions in the Gussone Park of the Royal Palace of Portici, Naples, Italy. PMID- 29326216 TI - Draft Genome Sequence of Prochlorococcus marinus Strain XMU1401, Isolated from the Western Tropical North Pacific Ocean. AB - Prochlorococcus marinus is the most abundant photosynthetic organism in the tropical and subtropical oceans. Here, we report the draft genome sequence of Prochlorococcus marinus XMU1401, which was isolated from the Western Tropical North Pacific Ocean. PMID- 29326217 TI - Draft Genome Sequences of Bifidobacterium Strains N4G05 and N5G01, Isolated from the Human Vaginal Microbiome. AB - We report here the draft genome sequences of Bifidobacterium strains N4G05 and N5G01, isolated from the human vaginal microbiome. Genome sequences were obtained by de novo assembly from high-quality reads. Both strains were closely related to Bifidobacterium kashiwanohense based on barcode marker sequences and average nucleotide identity analysis. PMID- 29326218 TI - First Draft Genome Sequences of Two Bartonella tribocorum Strains from Laos and Cambodia. AB - Bartonella tribocorum is a Gram-negative bacterium known to infect animals, and rodents in particular, throughout the world. In this report, we present the draft genome sequences of two strains of B. tribocorum isolated from the blood of a rodent in Laos and a shrew in Cambodia. PMID- 29326219 TI - Draft Genome Sequence of the Fungus Lecanicillium psalliotae Strain HWLR35, Isolated from a Wheat Leaf Infected with Leaf Rust (Caused by Puccinia triticina). AB - Lecanicillium psalliotae is an entomopathogenic, mycoparasitical, and nematophagous fungus known to produce antibiotic and antifungal compounds. Here, we report the first 36-Mb draft genome sequence of L. psalliotae strain HWLR35. The draft genome contains 197 scaffolds and is predicted to have 11,009 protein coding genes. PMID- 29326220 TI - Draft Genome Sequence of Saccharomycopsis fermentans CBS 7830, a Predacious Yeast Belonging to the Saccharomycetales. AB - Saccharomycopsis fermentans is an ascomycetous necrotrophic fungal pathogen that penetrates and kills fungal prey cells via targeted penetration pegs. Here, we report the draft genome sequence and scaffold assembly of this mycoparasite. PMID- 29326221 TI - Genome Sequences of Acholeplasma laidlawii Strains with Increased Resistance to Tetracycline and Melittin. AB - Acholeplasma laidlawii is a well-suited model for studying the molecular basis for adapting mollicutes to environmental conditions. Here, we present the whole genome sequences of two strains of A. laidlawii with increased resistance to tetracycline and melittin. PMID- 29326222 TI - Genome Sequence of Actinobacillus seminis Strain ATCC 15768, a Reference Strain of Ovine Pathogens That Causes Infections in Reproductive Organs. AB - The draft genome sequence of Actinobacillus seminis strain ATCC 15768 is reported here. The genome comprises 22 contigs corresponding to 2.36 Mb with 40.7% G+C content and contains several genes related to virulence, including a putative RTX protein. PMID- 29326223 TI - Genome Sequence of a Lethal Strain of Xylem-Invading Verticillium nonalfalfae. AB - Verticillium nonalfalfae, a soilborne vascular phytopathogenic fungus, causes wilt disease in several crop species. Of great concern are outbreaks of highly aggressive V. nonalfalfae strains, which cause a devastating wilt disease in European hops. We report here the genome sequence and annotation of V. nonalfalfae strain T2, providing genomic information that will allow better understanding of the molecular mechanisms underlying the development of highly aggressive strains. PMID- 29326224 TI - Draft Genome Sequence of Megamonas funiformis Strain Marseille-P3344, Isolated from a Human Fecal Microbiota. AB - In this article, we present the draft genome sequence of Megamonas funiformis strain Marseille-P3344, isolated from a human fecal sample. The genome described here is composed of 2,464,704 nucleotides, with 2,230 protein-coding genes and 76 RNA genes. PMID- 29326225 TI - Genomic Insights into Biofilm-Forming Enterococcus faecalis SK460 Isolated from a Chronic Diabetic Ulcer Patient. AB - Enterococcus faecalis is recognized as one of the leading pathogens causing nosocomial infections. Here we report a draft genome sequence of Enterococcus faecalis SK460, isolated from a chronic diabetic foot ulcer patient. This strain exhibits various biofilm-associated genes, virulence genes, and antibiotic resistance genes related to aminoglycoside, macrolide, and tetracycline resistance. PMID- 29326226 TI - Draft Genome Sequence of Chryseobacterium mucoviscidosis sp. nov. Strain VT16-26, Isolated from the Bronchoalveolar Lavage Fluid of a Patient with Cystic Fibrosis. AB - We report here the draft genome sequence of Chryseobacterium mucoviscidosis VT16 26, a novel bacterium isolated from the lungs of a patient with cystic fibrosis. The genome was composed of 4,403,956 bp and had 36.2% G+C content. We detected 4,048 genes with predicted protein-coding functions, including those associated with antibiotic resistance and virulence. PMID- 29326227 TI - Draft Genome Sequence of Lactobacillus fermentum NCDC 400, Isolated from a Traditional Indian Dairy Product. AB - We announce here the draft genome sequence of Lactobacillus fermentum NCDC 400, a potential probiotic strain isolated from a traditional Indian dairy product. The genome size of Lactobacillus fermentum NCDC 400 is 1.89 Mb, and the assembled sequence consists of 185 contigs joined into 138 scaffolds. PMID- 29326228 TI - Bringing Social Context Into the Conversation About Pediatric Long-term Ventilation. PMID- 29326229 TI - Genomic Understanding of an Infectious Brain Disease from the Desert. AB - Rhinocladiella mackenziei accounts for the majority of fungal brain infections in the Middle East, and is restricted to the arid climate zone between Saudi Arabia and Pakistan. Neurotropic dissemination caused by this fungus has been reported in immunocompromised, but also immunocompetent individuals. If untreated, the infection is fatal. Outside of humans, the environmental niche of R. mackenziei is unknown, and the fungus has been only cultured from brain biopsies. In this paper, we describe the whole-genome resequencing of two R. mackenziei strains from patients in Saudi Arabia and Qatar. We assessed intraspecies variation and genetic signatures to uncover the genomic basis of the pathogenesis, and potential niche adaptations. We found that the duplicated genes (paralogs) are more susceptible to accumulating significant mutations. Comparative genomics with other filamentous ascomycetes revealed a diverse arsenal of genes likely engaged in pathogenicity, such as the degradation of aromatic compounds and iron acquisition. In addition, intracellular accumulation of trehalose and choline suggests possible adaptations to the conditions of an arid climate region. Specifically, protein family contractions were found, including short-chain dehydrogenase/reductase SDR, the cytochrome P450 (CYP) (E-class), and the G protein beta WD-40 repeat. Gene composition and metabolic potential indicate extremotolerance and hydrocarbon assimilation, suggesting a possible environmental habitat of oil-polluted desert soil. PMID- 29326230 TI - Base-Resolution Analysis of DNA Methylation Patterns Downstream of Dnmt3a in Mouse Naive B Cells. AB - The DNA methyltransferase, Dnmt3a, is dynamically regulated throughout mammalian B cell development and upon activation by antigenic stimulation. Dnmt3a inactivation in hematopoietic stem cells has been shown to drive B cell-related malignancies, including chronic lymphocytic leukemia, and associates with specific DNA methylation patterns in transformed cells. However, while it is clear that inactivation of Dnmt3a in hematopoietic stem cells has profound functional effects, the consequences of Dnmt3a inactivation in cells of the B lineage are unclear. To assess whether loss of Dnmt3a at the earliest stages of B cell development lead to DNA methylation defects that might impair function, we selectively inactivated Dnmt3a early in mouse B cell development and then utilized whole genome bisulfite sequencing to generate base-resolution profiles of Dnmt3a+/+ and Dnmt3a-/- naive splenic B cells. Overall, we find that global methylation patterns are largely consistent between Dnmt3a+/+ and Dnmt3a-/- naive B cells, indicating a minimal functional effect of DNMT3A in mature B cells. However, loss of Dnmt3a induced 449 focal DNA methylation changes, dominated by loss-of-methylation events. Regions found to be hypomethylated in Dnmt3a-/- naive splenic B cells were enriched in gene bodies of transcripts expressed in B cells, a fraction of which are implicated in B cell-related disease. Overall, the results from this study suggest that factors other than Dnmt3a are the major drivers for methylome maintenance in B cell development. PMID- 29326232 TI - Future of nonnucleoside reverse transcriptase inhibitors. PMID- 29326233 TI - Partitioning aggression. PMID- 29326231 TI - Linked networks for learning and expressing location-specific threat. AB - Learning locations of danger within our environment is a vital adaptive ability whose neural bases are only partially understood. We examined fMRI brain activity while participants navigated a virtual environment in which flowers appeared and were "picked." Picking flowers in the danger zone (one-half of the environment) predicted an electric shock to the wrist (or "bee sting"); flowers in the safe zone never predicted shock; and household objects served as controls for neutral spatial memory. Participants demonstrated learning with shock expectancy ratings and skin conductance increases for flowers in the danger zone. Patterns of brain activity shifted between overlapping networks during different task stages. Learning about environmental threats, during flower approach in either zone, engaged the anterior hippocampus, amygdala, and ventromedial prefrontal cortex (vmPFC), with vmPFC-hippocampal functional connectivity increasing with experience. Threat appraisal, during approach in the danger zone, engaged the insula and dorsal anterior cingulate (dACC), with insula-hippocampal functional connectivity. During imminent threat, after picking a flower, this pattern was supplemented by activity in periaqueductal gray (PAG), insula-dACC coupling, and posterior hippocampal activity that increased with experience. We interpret these patterns in terms of multiple representations of spatial context (anterior hippocampus); specific locations (posterior hippocampus); stimuli (amygdala); value (vmPFC); threat, both visceral (insula) and cognitive (dACC); and defensive behaviors (PAG), interacting in different combinations to perform the functions required at each task stage. Our findings illuminate how we learn about location specific threats and suggest how they might break down into overgeneralization or hypervigilance in anxiety disorders. PMID- 29326234 TI - Toward a unifying theory of biodiversity. PMID- 29326235 TI - Predicting tipping points in complex environmental systems. PMID- 29326236 TI - Celebrating 35 Years of the AJNR: January 1983 edition. PMID- 29326237 TI - An ulcer on the nipple. PMID- 29326238 TI - Further points to consider after primary percutaneous coronary intervention. PMID- 29326239 TI - What is positionality and should it be expressed in quantitative studies? AB - Although we are increasingly reaping the benefits of qualitative studies, their approach and that of quantitative studies remain rather separate. Emergency medicine practitioners thrive off research in context as we deal with such an undifferentiated population however quantitative 'hard-science' work is conspicuous for its absence of positionality. This contrasts strongly with the way in which qualitative research, within the domain of so-called soft-science literature, uses positionality as an integral element of the research process. Without contextualising the researcher and research environment in qualitative studies, often the meaning of any research output is lost. What follows is that positionality does not undermine the truth of such research, instead it defines the boundaries within which the research was produced. The absence of positionality when considered alongside the notion of bias, may challenge the quantitative idea of validity. PMID- 29326241 TI - Upsurge in attacks on hospitals in Syria condemned. PMID- 29326240 TI - Neuropsychological assessment in epilepsy. AB - The role of the neuropsychological assessment in the management of people with epilepsy has evolved considerably over the past 25 years. This paper describes some of the most common applications of a neuropsychological assessment in the diagnosis, management and treatment of people with epilepsy. It describes the factors that influence the interpretation of neuropsychological test scores in this patient group and outlines the limitations of the investigation. It gives guidelines for the optimal timing of a referral, together with timelines and indications for reassessment, and provides a checklist to help the referring clinician get the most from a neuropsychological assessment for their patients with epilepsy. PMID- 29326242 TI - Biased Agonism in Drug Discovery-Is It Too Soon to Choose a Path? AB - A single receptor can activate multiple signaling pathways that have distinct or even opposite effects on cell function. Biased agonists stabilize receptor conformations preferentially stimulating one of these pathways, and therefore allow a more targeted modulation of cell function and treatment of disease. Dedicated development of biased agonists has led to promising drug candidates in clinical development, such as the G protein-biased u opioid receptor agonist oliceridine. However, leveraging the theoretical potential of biased agonism for drug discovery faces several challenges. Some of these challenges are technical, such as techniques for quantitative analysis of bias and development of suitable screening assays; others are more fundamental, such as the need to robustly identify in a very early phase which cell type harbors the cellular target of the drug candidate, which signaling pathway leads to the desired therapeutic effect, and how these pathways may be modulated in the disease to be treated. We conclude that biased agonism has potential mainly in the treatment of conditions with a well-understood pathophysiology; in contrast, it may increase effort and commercial risk under circumstances where the pathophysiology has been less well defined, as is the case with many highly innovative treatments. PMID- 29326244 TI - Gene therapy comes of age. AB - After almost 30 years of promise tempered by setbacks, gene therapies are rapidly becoming a critical component of the therapeutic armamentarium for a variety of inherited and acquired human diseases. Gene therapies for inherited immune disorders, hemophilia, eye and neurodegenerative disorders, and lymphoid cancers recently progressed to approved drug status in the United States and Europe, or are anticipated to receive approval in the near future. In this Review, we discuss milestones in the development of gene therapies, focusing on direct in vivo administration of viral vectors and adoptive transfer of genetically engineered T cells or hematopoietic stem cells. We also discuss emerging genome editing technologies that should further advance the scope and efficacy of gene therapy approaches. PMID- 29326243 TI - Concentrative Transport of Antifolates Mediated by the Proton-Coupled Folate Transporter (SLC46A1); Augmentation by a HEPES Buffer. AB - The proton-coupled folate transporter (PCFT) is ubiquitously expressed in solid tumors to which it delivers antifolates, particularly pemetrexed, into cancer cells. Studies of PCFT-mediated transport, to date, have focused exclusively on the influx of folates and antifolates. This article addresses the impact of PCFT on concentrative transport, critical to the formation of the active polyglutamate congeners, and at pH levels relevant to the tumor microenvironment. An HeLa derived cell line was employed, in which folate-specific transport was mediated exclusively by PCFT. At pH 7.0, there was a substantial chemical gradient for methotrexate that decreased as the extracellular pH was increased. A chemical gradient was still detected at pH 7.4 in the usual HEPES-based transport buffer in contrast to what was observed in a bicarbonate/CO2-buffered medium. This antifolate gradient correlated with an alkaline intracellular pH in the former (pH 7.85), but not the latter (pH 7.39), buffer and was abolished by the protonophore carbonyl cyanide-4-(trifluoromethoxy)phenylhydrazone. The gradient in HEPES buffer at pH 7.4 was the result of the activity of Na+/H+ exchanger(s); it was eliminated by inhibitors of Na+/H+ exchanger (s) or Na+/K+ ATPase. An antifolate chemical gradient was also detected in bicarbonate buffer at pH 6.9 versus 7.4, also suppressed by carbonyl cyanide-4 (trifluoromethoxy)phenylhydrazone. When the membrane potential is considered, PCFT generates substantial transmembrane electrochemical-potential gradients at extracellular pH levels relevant to the tumor microenvironment. The augmentation of intracellular pH, when cells are in a HEPES buffer, should be taken into consideration in studies that encompass all proton-coupled transporter families. PMID- 29326246 TI - Frankenstein lives on. PMID- 29326245 TI - Fatty acyl recognition and transfer by an integral membrane S-acyltransferase. AB - DHHC (Asp-His-His-Cys) palmitoyltransferases are eukaryotic integral membrane enzymes that catalyze protein palmitoylation, which is important in a range of physiological processes, including small guanosine triphosphatase (GTPase) signaling, cell adhesion, and neuronal receptor scaffolding. We present crystal structures of two DHHC palmitoyltransferases and a covalent intermediate mimic. The active site resides at the membrane-cytosol interface, which allows the enzyme to catalyze thioester-exchange chemistry by using fatty acyl-coenzyme A and explains why membrane-proximal cysteines are candidates for palmitoylation. The acyl chain binds in a cavity formed by the transmembrane domain. We propose a mechanism for acyl chain-length selectivity in DHHC enzymes on the basis of cavity mutants with preferences for shorter and longer acyl chains. PMID- 29326248 TI - DOE pushes for useful quantum computing. PMID- 29326249 TI - In Pakistan, surveillance for polio reveals a paradox. PMID- 29326250 TI - Earth scientists list top priorities for space missions. PMID- 29326251 TI - Cuba's 100-year plan for climate change. PMID- 29326252 TI - Cliffs of ice spied on Mars. PMID- 29326253 TI - The long shadow of Frankenstein. PMID- 29326254 TI - How a horror story haunts science. PMID- 29326255 TI - Creating a modern monster. PMID- 29326256 TI - Taming the monsters of tomorrow. PMID- 29326257 TI - A glossary of Frankenwords. PMID- 29326258 TI - Detecting the building blocks of aromatics. PMID- 29326259 TI - Improbable Big Birds. PMID- 29326260 TI - Malaria parasite evolution in a test tube. PMID- 29326262 TI - Coherent excitations revealed and calculated. PMID- 29326261 TI - TRPM channels come into focus. PMID- 29326263 TI - Silencing stemness in T cell differentiation. PMID- 29326264 TI - Global science for city policy. PMID- 29326265 TI - The next generation's Frankenstein films. PMID- 29326266 TI - The epigenetic control of stemness in CD8+ T cell fate commitment. AB - After priming, naive CD8+ T lymphocytes establish specific heritable transcription programs that define progression to long-lasting memory cells or to short-lived effector cells. Although lineage specification is critical for protection, it remains unclear how chromatin dynamics contributes to the control of gene expression programs. We explored the role of gene silencing by the histone methyltransferase Suv39h1. In murine CD8+ T cells activated after Listeria monocytogenes infection, Suv39h1-dependent trimethylation of histone H3 lysine 9 controls the expression of a set of stem cell-related memory genes. Single-cell RNA sequencing revealed a defect in silencing of stem/memory genes selectively in Suv39h1-defective T cell effectors. As a result, Suv39h1-defective CD8+ T cells show sustained survival and increased long-term memory reprogramming capacity. Thus, Suv39h1 plays a critical role in marking chromatin to silence stem/memory genes during CD8+ T effector terminal differentiation. PMID- 29326267 TI - Coherent band excitations in CePd3: A comparison of neutron scattering and ab initio theory. AB - In common with many strongly correlated electron systems, intermediate valence compounds are believed to display a crossover from a high-temperature regime of incoherently fluctuating local moments to a low-temperature regime of coherent hybridized bands. We show that inelastic neutron scattering measurements of the dynamic magnetic susceptibility of CePd3 provides a benchmark for ab initio calculations based on dynamical mean field theory. The magnetic response is strongly momentum dependent thanks to the formation of coherent f-electron bands at low temperature, with an amplitude that is strongly enhanced by local particle hole interactions. The agreement between experiment and theory shows that we have a robust first-principles understanding of the temperature dependence of f electron coherence. PMID- 29326270 TI - Detection of the aromatic molecule benzonitrile (c-C6H5CN) in the interstellar medium. AB - Polycyclic aromatic hydrocarbons and polycyclic aromatic nitrogen heterocycles are thought to be widespread throughout the universe, because these classes of molecules are probably responsible for the unidentified infrared bands, a set of emission features seen in numerous Galactic and extragalactic sources. Despite their expected ubiquity, astronomical identification of specific aromatic molecules has proven elusive. We present the discovery of benzonitrile (c C6H5CN), one of the simplest nitrogen-bearing aromatic molecules, in the interstellar medium. We observed hyperfine-resolved transitions of benzonitrile in emission from the molecular cloud TMC-1. Simple aromatic molecules such as benzonitrile may be precursors for polycyclic aromatic hydrocarbon formation, providing a chemical link to the carriers of the unidentified infrared bands. PMID- 29326271 TI - Ordered macro-microporous metal-organic framework single crystals. AB - We constructed highly oriented and ordered macropores within metal-organic framework (MOF) single crystals, opening up the area of three-dimensional-ordered macro-microporous materials (that is, materials containing both macro- and micropores) in single-crystalline form. Our methodology relies on the strong shaping effects of a polystyrene nanosphere monolith template and a double solvent-induced heterogeneous nucleation approach. This process synergistically enabled the in situ growth of MOFs within ordered voids, rendering a single crystal with oriented and ordered macro-microporous structure. The improved mass diffusion properties of such hierarchical frameworks, together with their robust single-crystalline nature, endow them with superior catalytic activity and recyclability for bulky-molecule reactions, as compared with conventional, polycrystalline hollow, and disordered macroporous ZIF-8. PMID- 29326269 TI - Exposed subsurface ice sheets in the Martian mid-latitudes. AB - Thick deposits cover broad regions of the Martian mid-latitudes with a smooth mantle; erosion in these regions creates scarps that expose the internal structure of the mantle. We investigated eight of these locations and found that they expose deposits of water ice that can be >100 meters thick, extending downward from depths as shallow as 1 to 2 meters below the surface. The scarps are actively retreating because of sublimation of the exposed water ice. The ice deposits likely originated as snowfall during Mars' high-obliquity periods and have now compacted into massive, fractured, and layered ice. We expect the vertical structure of Martian ice-rich deposits to preserve a record of ice deposition and past climate. PMID- 29326272 TI - Antagonism toward the intestinal microbiota and its effect on Vibrio cholerae virulence. AB - The bacterial type VI secretion system (T6SS) is a nanomachine that delivers toxic effector proteins into target cells, killing them. In mice, we found that the Vibrio cholerae T6SS attacks members of the host commensal microbiota in vivo, facilitating the pathogen's colonization of the gut. This microbial antagonistic interaction drives measurable changes in the pathogenicity of V. cholerae through enhanced intestinal colonization, expression of bacterial virulence genes, and activation of host innate immune genes. Because ablation of mouse commensals by this enteric pathogen correlated with more severe diarrheal symptoms, we conclude that antagonism toward the gut microbiota could improve the fitness of V. cholerae as a pathogen by elevating its transmission to new susceptible hosts. PMID- 29326273 TI - Spatial representations of self and other in the hippocampus. AB - An animal's awareness of its location in space depends on the activity of place cells in the hippocampus. How the brain encodes the spatial position of others has not yet been identified. We investigated neuronal representations of other animals' locations in the dorsal CA1 region of the hippocampus with an observational T-maze task in which one rat was required to observe another rat's trajectory to successfully retrieve a reward. Information reflecting the spatial location of both the self and the other was jointly and discretely encoded by CA1 pyramidal cells in the observer rat. A subset of CA1 pyramidal cells exhibited spatial receptive fields that were identical for the self and the other. These findings demonstrate that hippocampal spatial representations include dimensions for both self and nonself. PMID- 29326268 TI - Mapping the malaria parasite druggable genome by using in vitro evolution and chemogenomics. AB - Chemogenetic characterization through in vitro evolution combined with whole genome analysis can identify antimalarial drug targets and drug-resistance genes. We performed a genome analysis of 262 Plasmodium falciparum parasites resistant to 37 diverse compounds. We found 159 gene amplifications and 148 nonsynonymous changes in 83 genes associated with drug-resistance acquisition, where gene amplifications contributed to one-third of resistance acquisition events. Beyond confirming previously identified multidrug-resistance mechanisms, we discovered hitherto unrecognized drug target-inhibitor pairs, including thymidylate synthase and a benzoquinazolinone, farnesyltransferase and a pyrimidinedione, and a dipeptidylpeptidase and an arylurea. This exploration of the P. falciparum resistome and druggable genome will likely guide drug discovery and structural biology efforts, while also advancing our understanding of resistance mechanisms available to the malaria parasite. PMID- 29326274 TI - Social place-cells in the bat hippocampus. AB - Social animals have to know the spatial positions of conspecifics. However, it is unknown how the position of others is represented in the brain. We designed a spatial observational-learning task, in which an observer bat mimicked a demonstrator bat while we recorded hippocampal dorsal-CA1 neurons from the observer bat. A neuronal subpopulation represented the position of the other bat, in allocentric coordinates. About half of these "social place-cells" represented also the observer's own position-that is, were place cells. The representation of the demonstrator bat did not reflect self-movement or trajectory planning by the observer. Some neurons represented also the position of inanimate moving objects; however, their representation differed from the representation of the demonstrator bat. This suggests a role for hippocampal CA1 neurons in social spatial cognition. PMID- 29326276 TI - My second life as a teacher. PMID- 29326277 TI - ?Patiromer for the management of hyperkalaemia. AB - Hyperkalaemia is a potentially life-threatening condition, in which there is an abnormally high concentration of potassium ions in the blood.1,2 Cation-exchange resins (e.g. calcium or sodium polystyrene sulfonate) that bind potassium in the gastrointestinal tract to increase faecal elimination have been used as part of the management of hyperkalaemia but they have some serious adverse effects, including potentially fatal gastrointestinal necrosis.3,4 Patiromer (?Veltassa - Vifor Fresenius) is a cation-exchange polymer that is licensed for the treatment of hyperkalaemia in adults and, unlike other exchange resins, its licence is not restricted to people with anuria, severe oliguria or those requiring or undergoing dialysis.5,6 Here, we review the evidence for the efficacy and safety of patiromer and consider its place in the management of hyperkalaemia. PMID- 29326278 TI - An update on the management of gout. AB - Gout is the most common form of inflammatory arthritis and its incidence in the UK has steadily increased from 1.5% in 1997 to 2.5% in 2012.1,2 It is characterised by deposition of monosodium urate crystals in joints and tissues and usually presents with intermittent painful attacks followed by long periods of remission.3 It has been suggested that the management of gout in the UK remains suboptimal.1 In 2004, we concluded that there was a woeful lack of evidence to guide treatment or prophylaxis for gout, particularly with regard to choice of drug or doses.4 The introduction of new drugs and new evidence on the efficacy and safety of treatment options has led the European League Against Rheumatism (EULAR) and the British Society of Rheumatology (BSR) to update their guidelines on the management of gout.2,5 Nevertheless, there are differing views on target serum uric acid (SUA) levels and the role of urate lowering treatment (ULT).2,5-7 Here, we review the latest guidance on the management of gout and consider the role of long-term ULT. PMID- 29326279 TI - Gut microbiota in cardiovascular disease and heart failure. AB - Accumulating evidence supports a relationship between the complexity and diversity of the gut microbiota and host diseases. In addition to alterations in the gut microbial composition, the metabolic potential of gut microbiota has been identified as a contributing factor in the development of diseases. Recent technological developments of molecular and biochemical analyses enable us to detect and characterize the gut microbiota via assessment and classification of its genomes and corresponding metabolites. These advances have provided emerging data supporting the role of gut microbiota in various physiological activities including host metabolism, neurological development, energy homeostasis, and immune regulation. Although few human studies have looked into the causative associations and underlying pathophysiology of the gut microbiota and host disease, a growing body of preclinical and clinical evidence supports the theory that the gut microbiota and its metabolites have the potential to be a novel therapeutic and preventative target for cardiovascular and metabolic diseases. In this review, we highlight the interplay between the gut microbiota and its metabolites, and the development and progression of hypertension, heart failure, and chronic kidney disease. PMID- 29326280 TI - Autoantibodies against angiotensin and adrenergic receptors: more than a biomarker? AB - Agonistic autoantibodies (AAs) directed against receptors of the sympathetic nervous system and the renin-angiotensin system have been suggested to contribute to cardiovascular and renal disease, in particular hypertension, preeclampsia, and graft failure in kidney transplantation patients. Consequently, they are now also being studied as biomarker for these conditions. This commentary summarizes our current understanding of these AAs, critically discussing whether they truly act as agonist, and focusing on the wide array of assays that are currently used for their quantification. PMID- 29326275 TI - CX3CR1+ mononuclear phagocytes control immunity to intestinal fungi. AB - Intestinal fungi are an important component of the microbiota, and recent studies have unveiled their potential in modulating host immune homeostasis and inflammatory disease. Nonetheless, the mechanisms governing immunity to gut fungal communities (mycobiota) remain unknown. We identified CX3CR1+ mononuclear phagocytes (MNPs) as being essential for the initiation of innate and adaptive immune responses to intestinal fungi. CX3CR1+ MNPs express antifungal receptors and activate antifungal responses in a Syk-dependent manner. Genetic ablation of CX3CR1+ MNPs in mice led to changes in gut fungal communities and to severe colitis that was rescued by antifungal treatment. In Crohn's disease patients, a missense mutation in the gene encoding CX3CR1 was identified and found to be associated with impaired antifungal responses. These results unravel a role of CX3CR1+ MNPs in mediating interactions between intestinal mycobiota and host immunity at steady state and during inflammatory disease. PMID- 29326281 TI - Evaluation of Overall Response Rate and Progression-Free Survival as Potential Surrogate Endpoints for Overall Survival in Immunotherapy Trials. AB - Purpose: With the approval of immunotherapies for a variety of indications, methods to assess treatment benefit addressing the response patterns observed are important. We evaluated RECIST criteria-based overall response rate (ORR) and progression-free survival (PFS) as potential surrogate endpoints of overall survival (OS), and explored a modified definition of PFS by altering the threshold percentage determining disease progression to assess the association with survival benefit in immunotherapy trials.Experimental Design: Thirteen randomized, multicenter, active-control trials containing immunotherapeutic agents submitted to the FDA were analyzed. Associations between treatment effects of ORR, PFS, modified PFS, and OS were evaluated at individual and trial levels. Patient-level responder analysis was performed for PFS and OS.Results: The coefficient of determination (R2) measured the strength of associations, where values near 1 imply surrogacy and values close to 0 suggest no association. At the trial level, the association between hazard ratios (HR) of PFS and OS was R2 = 0.1303, and between the odds ratio (OR) of ORR and HR of OS was R2 = 0.1277. At the individual level, the Spearman rank correlation coefficient between PFS and OS was 0.61. Trial-level associations between modified PFS and OS ranged between 0.07 and 0.1, and individual-level correlations were approximately 0.6. HRs of PFS and OS for responders versus nonresponders were 0.129 [95% confidence interval (CI), 0.11-0.15] and 0.118 (95% CI, 0.11-0.13), respectively.Conclusions: Although responders exhibited longer survival and PFS than nonresponders, the trial-level and individual-level associations were weak between PFS/ORR and OS. Modifications to PFS did not improve associations. Clin Cancer Res; 24(10); 2268-75. (c)2018 AACRSee related commentary by Korn and Freidlin, p. 2239. PMID- 29326283 TI - Rash on extensor surfaces of a child. PMID- 29326284 TI - Trust may reduce or delay chemotherapy because of staff shortages. PMID- 29326282 TI - RNF126 as a Biomarker of a Poor Prognosis in Invasive Breast Cancer and CHEK1 Inhibitor Efficacy in Breast Cancer Cells. AB - Purpose: (i) To investigate the expression of the E3 ligase, RNF126, in human invasive breast cancer and its links with breast cancer outcomes; and (ii) to test the hypothesis that RNF126 determines the efficacy of inhibitors targeting the cell-cycle checkpoint kinase, CHEK1.Experimental Design: A retrospective analysis by immunohistochemistry (IHC) compared RNF126 staining in 110 invasive breast cancer and 78 paired adjacent normal tissues with clinicopathologic data. Whether RNF126 controls CHEK1 expression was determined by chromatin immunoprecipitation and a CHEK1 promoter driven luciferase reporter. Staining for these two proteins by IHC using tissue microarrays was also conducted. Cell killing/replication stress induced by CHEK1 inhibition was evaluated in cells, with or without RNF126 knockdown, by MTT/colony formation, replication stress biomarker immunostaining and DNA fiber assays.Results: RNF126 protein expression was elevated in breast cancer tissue samples. RNF126 was associated with a poor clinical outcome after multivariate analysis and was an independent predictor. RNF126 promotes CHEK1 transcript expression. Critically, a strong correlation between RNF126 and CHEK1 proteins was identified in breast cancer tissue and cell lines. The inhibition of CHEK1 induced a greater cell killing and a higher level of replication stress in breast cancer cells expressing RNF126 compared to RNF126 depleted cells.Conclusions: RNF126 protein is highly expressed in invasive breast cancer tissue. The high expression of RNF126 is an independent predictor of a poor prognosis in invasive breast cancer and is considered a potential biomarker of a cancer's responsiveness to CHEK1 inhibitors. CHEK1 inhibition targets breast cancer cells expressing higher levels of RNF126 by enhancing replication stress. Clin Cancer Res; 24(7); 1629-43. (c)2018 AACR. PMID- 29326286 TI - Correction: Dimethyl fumarate for psoriasis. PMID- 29326287 TI - The apical scaffold big bang binds to spectrins and regulates the growth of Drosophila melanogaster wing discs. AB - During development, cell numbers are tightly regulated, ensuring that tissues and organs reach their correct size and shape. Recent evidence has highlighted the intricate connections between the cytoskeleton and the regulation of the key growth control Hippo pathway. Looking for apical scaffolds regulating tissue growth, we describe that Drosophila melanogaster big bang (Bbg), a poorly characterized multi-PDZ scaffold, controls epithelial tissue growth without affecting epithelial polarity and architecture. bbg-mutant tissues are smaller, with fewer cells that are less apically constricted than normal. We show that Bbg binds to and colocalizes tightly with the beta-heavy-Spectrin/Kst subunit at the apical cortex and promotes Yki activity, F-actin enrichment, and the phosphorylation of the myosin II regulatory light chain Spaghetti squash. We propose a model in which the spectrin cytoskeleton recruits Bbg to the cortex, where Bbg promotes actomyosin contractility to regulate epithelial tissue growth. PMID- 29326289 TI - Prevalence of hippocampal enlarged perivascular spaces in a sample of patients with hypertension and their relation with vascular risk factors and cognitive function. AB - OBJECTIVES: The clinical importance of hippocampal enlarged perivascular spaces (H-EPVS) remains uncertain. We aimed to study their association with vascular risk factors, cognitive function and mild cognitive impairment (MCI). METHODS: Data were obtained from the ISSYS (Investigating Silent Strokes in hYpertensives, a magnetic resonance imaging Study) cohort, which is a prospective study of patients with hypertension aged 50-70 with no prior stroke or dementia. Participants were clinically evaluated and underwent a cognitive screening test, Dementia Rating Scale-2, which includes five cognitive subscales (attention, initiation/perseveration, conceptualisation, construction and memory). Besides, they were diagnosed with MCI or normal ageing following standard criteria. H-EPVS were manually counted on brain MRI according to a previous scale and defined as extensive when H-EPVS count was >=7 (upper quartile). Multivariate models were created to study the relationship between H-EPVS, vascular risk factors and cognitive function. RESULTS: 723 patients were included; the median age was 64 (59-67) and 51% were male. Seventy-two patients (10%) were diagnosed with MCI and 612 (84.6%) had at least 1 H-EPVS. Older age (OR per year=1.04, 95% CI 1.01 to 1.08) and poor blood pressure treatment compliance (OR=1.50, 95% CI 1.07 to 2.11) were independently associated with extensive H-EPVS. Regarding cognitive function, H-EPVS were independently and inversely correlated with verbal reasoning (beta=-0.021, 95% CI -0.038 to -0.003). No association was found between H-EPVS and MCI. CONCLUSIONS: H-EPVS are a frequent finding in patients with hypertension and are associated with ageing and poor hypertension treatment compliance. Besides, H-EPVS are associated with worse verbal reasoning function. PMID- 29326288 TI - Drosophila Big bang regulates the apical cytocortex and wing growth through junctional tension. AB - Growth of epithelial tissues is regulated by a plethora of components, including signaling and scaffolding proteins, but also by junctional tension, mediated by the actomyosin cytoskeleton. However, how these players are spatially organized and functionally coordinated is not well understood. Here, we identify the Drosophila melanogaster scaffolding protein Big bang as a novel regulator of growth in epithelial cells of the wing disc by ensuring proper junctional tension. Loss of big bang results in the reduction of the regulatory light chain of nonmuscle myosin, Spaghetti squash. This is associated with an increased apical cell surface, decreased junctional tension, and smaller wings. Strikingly, these phenotypic traits of big bang mutant discs can be rescued by expressing constitutively active Spaghetti squash. Big bang colocalizes with Spaghetti squash in the apical cytocortex and is found in the same protein complex. These results suggest that in epithelial cells of developing wings, the scaffolding protein Big bang controls apical cytocortex organization, which is important for regulating cell shape and tissue growth. PMID- 29326290 TI - Functional lesional neurosurgery for tremor: a systematic review and meta analysis. AB - BACKGROUND: This work evaluates the consistency, effect size and incidence of persistent side effects of lesional neurosurgical interventions in the treatment of tremor due to Parkinson's disease (PD), essential tremor (ET), multiple sclerosis (MS) and midbrain lesions. METHODS: Systematic review and meta-analysis according to PRISMA-P guidelines. Random effects meta-analysis of standardised mean difference based on a peer-reviewed protocol (PROSPERO no. CRD42016048049). RESULTS: From 1249 abstracts screened, 86 peer-reviewed studies reporting 102 cohorts homogeneous for tremor aetiology, surgical target and technique were included.Effect on PD tremor was better when targeted at the ventral intermediate nucleus (V.im.) by radiofrequency ablation (RF) (Hedge's g: -4.15;) over V.im. by Gamma Knife (GK) (-2.2), subthalamic nucleus (STN) by RF (-1.12) and globus pallidus internus (GPi) by RF (-0.89). For ET MRI-guided focused ultrasound (MRIgFUS) ablation of the cerebellothalamic tract (CTT) (-2.35) and V.im. (-2.08) showed similar mean tremor reductions to V.im. ablation by RF (-2.42) or GK ( 2.13). In MS V.im. ablation by GK (-1.96) and RF (-1.63) were similarly effective.Mean rates of persistent side effects after unilateral lesions in PD were 12.8% (RF V.im.), 13.6% (RF STN), 9.2% (RF GPi), 0.7% (GK V.im.) and 7.0% (MRIgFUS V.im.). For ET, rates were 9.3% (RF V.im.), 1.8% (GK V.im.), 18.7% (MRIgFUS V.im.) and 0.0% (MRIgFUS CTT), for MS 37.7% (RF V.im.) and for rubral tremor 30.3% (RF V.im.). CONCLUSION: This meta-analysis quantifies safety, consistency and efficacy of lesional neurosurgical interventions for tremor by target, technique and aetiology. PMID- 29326291 TI - Anterior hippocampal grey matter predicts mental health outcome in functional neurological disorders: an exploratory pilot study. PMID- 29326292 TI - Nationwide epidemiological study of neuromyelitis optica in Japan. PMID- 29326293 TI - Physiological effects of subthalamic nucleus deep brain stimulation surgery in cervical dystonia. AB - BACKGROUND: Subthalamic nucleus deep brain stimulation (STN DBS) surgery is clinically effective for treatment of cervical dystonia; however, the underlying physiology has not been examined. We used transcranial magnetic stimulation (TMS) to examine the effects of STN DBS on sensorimotor integration, sensorimotor plasticity and motor cortex excitability, which are identified as the key pathophysiological features underlying dystonia. METHODS: TMS paradigms of short latency afferent inhibition (SAI) and long latency afferent inhibition (LAI) were used to examine the sensorimotor integration. Sensorimotor plasticity was measured with paired associative stimulation paradigm, and motor cortex excitability was examined with short interval intracortical inhibition and intracortical facilitation. DBS was turned off and on to record these measures. RESULTS: STN DBS modulated SAI and LAI, which correlated well with the acute clinical improvement. While there were no changes seen in the motor cortex excitability, DBS was found to normalise the sensorimotor plasticity; however, there was no clinical correlation. CONCLUSION: Modulation of sensorimotor integration is a key contributor to clinical improvement with acute stimulation of STN. Since the motor cortex excitability did not change and the change in sensorimotor plasticity did not correlate with clinical improvement, STN DBS demonstrates restricted effects on the underlying physiology. CLINICAL TRIAL REGISTRATION: NCT01671527. PMID- 29326294 TI - Guillain-Barre syndrome in southern China: retrospective analysis of hospitalised patients from 14 provinces in the area south of the Huaihe River. AB - OBJECTIVES: The clinical and epidemiological profiles of Guillain-Barre syndrome (GBS) in southern China have yet to be fully recognised. We aimed to investigate the subtypes of GBS in southern China, compare the clinical features of demyelinating form with that of axonal form and test whether preceding infections and age have influence on the clinical phenotype, disease course and severity of GBS. METHODS: Medical records of patients with a diagnosis of GBS admitted to 31 tertiary hospitals, located in 14 provinces in southern China, from 1 January 2013 to 30 September 2016, were collected and retrospectively reviewed. RESULTS: Finally. 1056 patients, including 887 classic GBS and 169 variants, were enrolled. The 661 classic patients with available electromyographic data were grouped as having acute inflammatory demyelinating polyneuropathy (AIDP, 49.0%), acute motor axonal neuropathy (AMAN, 18.8%), inexcitable (0.9%) and equivocal (31.3%). In contrast to AIDP, patients with AMAN were characterised by earlier nadir (P=0.000), higher Hughes score at nadir (P=0.003) and at discharge (P=0.000). Preceding upper respiratory infections were identified in 369 (34.9%) patients, who were more inclined to develop AIDP (P=0.000) and Miller-Fisher syndrome (P=0.027), whereas gastrointestinal infection were found in 89 (8.4%) patients, who were more prone to develop AMAN (P=0.000), with more severe illness (P=0.001) and longer hospital stay (P=0.009). Children (<=15 years) and the elderly (>=56 years) were more severe at nadir, the elderly had the longest hospital stay (P=0.023). CONCLUSION: AIDP is the predominant form in southern China, which is different from data of northern China. The different subtypes, preceding infection and age of onset can partially determine the disease progression, severity and short-term recovery speed of GBS. CLINICAL TRIAL REGISTRATION: ChiCTR-RRC-17014152. PMID- 29326295 TI - Randomised controlled trial of escitalopram for cervical dystonia with dystonic jerks/tremor. AB - OBJECTIVE: Trials for additional or alternative treatments for cervical dystonia (CD) are scarce since the introduction of botulinum neurotoxin (BoNT). We performed the first trial to investigate whether dystonic jerks/tremor in patients with CD respond to the selective serotonin reuptake inhibitor (SSRI) escitalopram. METHODS: In a randomised, double-blind, crossover trial, patients with CD received escitalopram and placebo for 6 weeks. Treatment with BoNT was continued, and scores on rating scales regarding dystonia, psychiatric symptoms and quality of life (QoL) were compared. Primary endpoint was the proportion of patients that improved at least one point on the Clinical Global Impression Scale for jerks/tremor scored by independent physicians with experience in movement disorders. RESULTS: Fifty-threepatients were included. In the escitalopram period, 14/49 patients (29%) improved on severity of jerks/tremor versus 11/48 patients (23%) in the placebo period (P=0.77). There were no significant differences between baseline and after treatment with escitalopram or placebo on severity of dystonia or jerks/tremor. Psychiatric symptoms and QoL improved significantly in both periods compared with baseline. There were no significant differences between treatment with escitalopram and placebo for dystonia, psychiatric or QoL rating scales. During treatment with escitalopram, patients experienced slightly more adverse events, but no serious adverse events occurred. CONCLUSION: In this innovative trial, no add-on effect of escitalopram for treatment of CD with jerks was found on motor or psychiatric symptoms. However, we also did not find a reason to withhold patients treatment with SSRIs for depression and anxiety, which are common in dystonia. TRIAL REGISTRATION NUMBER: NTR2178. PMID- 29326296 TI - Intrathecal baclofen therapy versus conventional medical management for severe poststroke spasticity: results from a multicentre, randomised, controlled, open label trial (SISTERS). AB - BACKGROUND: Intrathecal baclofen (ITB) is a treatment option for patients with severe poststroke spasticity (PSS) who have not reached their therapy goal with other interventions. METHODS: 'Spasticity In Stroke-Randomised Study' (SISTERS) was a randomised, controlled, open-label, multicentre phase IV study to evaluate the efficacy and safety of ITB therapy versus conventional medical management (CMM) with oral antispastic medications for treatment of PSS. Patients with chronic stroke with spasticity in >=2 extremities and an Ashworth Scale (AS) score >=3 in at least two affected muscle groups in the lower extremities (LE) were randomised (1:1) to ITB or CMM. Both treatment arms received physiotherapy throughout. The primary outcome was the change in the average AS score in the LE of the affected body side from baseline to month 6. Analyses were performed for all patients as randomised (primary analysis) and all randomised patients as treated (safety analysis). RESULTS: Of 60 patients randomised to ITB (n=31) or CMM (n=29), 48 patients (24 per arm) completed the study. The primary analysis showed a significant effect of ITB therapy over CMM (mean AS score reduction, 0.99 (ITB) vs -0.43 (CMM); Hodges-Lehmann estimate, -0.667(95.1%CI -1.0000 to 0.1667); P=0.0140). More patients reported adverse events while receiving ITB (24/25 patients, 96%; 149 events) compared with CMM (22/35, 63%; 77 events), although events were generally consistent with the known safety profile of ITB therapy. CONCLUSIONS: These data support the use of ITB therapy as an alternative to CMM for treatment of generalised PSS in adults. TRIAL REGISTRATION NUMBER: NCT01032239; Results. PMID- 29326297 TI - Current status and future directions of Levy walk research. AB - Levy walks are a mathematical construction useful for describing random patterns of movement with bizarre fractal properties that seem to have no place in biology. Nonetheless, movement patterns resembling Levy walks have been observed at scales ranging from the microscopic to the ecological. They have been seen in the molecular machinery operating within cells during intracellular trafficking, in the movement patterns of T cells within the brain, in DNA, in some molluscs, insects, fish, birds and mammals, in the airborne flights of spores and seeds, and in the collective movements of some animal groups. Levy walks are also evident in trace fossils (ichnofossils) - the preserved form of tracks made by organisms that occupied ancient sea beds about 252-66 million years ago. And they are utilised by algae that originated around two billion years ago, and still exist today. In September of 2017, leading researchers from across the life sciences, along with mathematicians and physicists, got together at a Company of Biologists' Workshop to discuss the origins and biological significance of these movement patterns. In this Review the essence of the technical and sometimes heated discussions is distilled and made accessible for all. In just a few pages, the reader is taken from a gentle introduction to the frontiers of a very active field of scientific enquiry. What emerges is a fascinating story of a truly inter disciplinary scientific endeavour that is seeking to better understand movement patterns occurring across all biological scales. PMID- 29326298 TI - Smoking duration alone provides stronger risk estimates of chronic obstructive pulmonary disease than pack-years. AB - BACKGROUND: Cigarette smoking is the strongest risk factor for COPD. Smoking burden is frequently measured in pack-years, but the relative contribution of cigarettes smoked per day versus duration towards the development of structural lung disease, airflow obstruction and functional outcomes is not known. METHODS: We analysed cross-sectional data from a large multicentre cohort (COPDGene) of current and former smokers. Primary outcome was airflow obstruction (FEV1/FVC); secondary outcomes included five additional measures of disease: FEV1, CT emphysema, CT gas trapping, functional capacity (6 min walk distance, 6MWD) and respiratory morbidity (St George's Respiratory Questionnaire, SGRQ). Generalised linear models were estimated to compare the relative contribution of each smoking variable with the outcomes, after adjustment for age, race, sex, body mass index, CT scanner, centre, age of smoking onset and current smoking status. We also estimated adjusted means of each outcome by categories of pack-years and combined groups of categorised smoking duration and cigarettes/day, and estimated linear trends of adjusted means for each outcome by categorised cigarettes/day, smoking duration and pack-years. RESULTS: 10 187 subjects were included. For FEV1/FVC, standardised beta coefficient for smoking duration was greater than for cigarettes/day and pack-years (P<0.001). After categorisation, there was a linear increase in adjusted means FEV1/FVC with increase in pack-years (regression coefficient beta=-0.023+/-SE0.003; P=0.003) and duration over all ranges of smoking cigarettes/day (beta=-0.041+/-0.004; P<0.001) but a relatively flat slope for cigarettes/day across all ranges of smoking duration (beta=-0.009+/-0.0.009; P=0.34). Strength of association of duration was similarly greater than pack years for emphysema, gas trapping, FEV1, 6MWD and SGRQ. CONCLUSION: Smoking duration alone provides stronger risk estimates of COPD than the composite index of pack-years. TRIAL REGISTRATION NUMBER: Post-results; NCT00608764. PMID- 29326299 TI - Targeting mutant KRAS with CRISPR-Cas9 controls tumor growth. AB - KRAS is the most frequently mutated oncogene in human tumors, and its activating mutations represent important therapeutic targets. The combination of Cas9 and guide RNA from the CRISPR-Cas system recognizes a specific DNA sequence and makes a double-strand break, which enables editing of the relevant genes. Here, we harnessed CRISPR to specifically target mutant KRAS alleles in cancer cells. We screened guide RNAs using a reporter system and validated them in cancer cells after lentiviral delivery of Cas9 and guide RNA. The survival, proliferation, and tumorigenicity of cancer cells in vitro and the growth of tumors in vivo were determined after delivery of Cas9 and guide RNA. We identified guide RNAs that efficiently target mutant KRAS without significant alterations of the wild-type allele. Doxycycline-inducible expression of this guide RNA in KRAS-mutant cancer cells transduced with a lentiviral vector encoding Cas9 disrupted the mutant KRAS gene, leading to inhibition of cancer cell proliferation both in vitro and in vivo. Intra-tumoral injection of lentivirus and adeno-associated virus expressing Cas9 and sgRNA suppressed tumor growth in vivo, albeit incompletely, in immunodeficient mice. Expression of Cas9 and the guide RNA in cells containing wild-type KRAS did not alter cell survival or proliferation either in vitro and in vivo. Our study provides a proof-of-concept that CRISPR can be utilized to target driver mutations of cancers in vitro and in vivo. PMID- 29326301 TI - Prognostic roles of signal transducers activators of transcription family in human breast cancer. AB - Signal transducer and activator of transcription (STAT) family are critical transcription factors, which have been proved as prognostic predictors for a number of cancers. However, the prognostic roles of STAT family in breast cancer patients remain in dispute. In this study, we mined the 'Kaplan-Meier plotter' (KM plotter) online database to explore the prognostic roles of STAT family mRNA expression in breast cancer including overall survival (OS), progression-free survival (PFS), as well as post-progression survival (PPS). The results suggest high mRNA expression of all the individual STATs, except STAT1 and STAT2, are significantly associated with favorable OS in breast cancer patients; high STAT1 mRNA expression is significantly associated with worse RFS and all the other individual STATs, except STAT3, are significantly associated with better RFS in breast cancer patients; only high STAT5b mRNA expression is significantly related to better PPS in breast cancer patients. Additionally, we explored the prognostic values of individual STATs in other clinicopathological features, such as pathological grades, estrogen receptor (ER) status and so on. The results suggest, except STAT2 and STAT6, high mRNA expression of STATs is related to a favorable prognosis especially for high pathological grade; high STAT5 mRNA expression indicates a favorable prognosis no matter under ER positive or negative status; high STAT4 mRNA expression suggests a favorable prognosis under HER2 negative status. Our results indicate that individual STATs, except STAT1 and STAT2, may act as a favorable prognostic biomarker in breast cancer. Nevertheless, further investigations on a larger population are warranted. PMID- 29326300 TI - Relationship between histone modifications and transcription factor binding is protein family specific. AB - The very small fraction of putative binding sites (BSs) that are occupied by transcription factors (TFs) in vivo can be highly variable across different cell types. This observation has been partly attributed to changes in chromatin accessibility and histone modification (HM) patterns surrounding BSs. Previous studies focusing on BSs within DNA regulatory regions found correlations between HM patterns and TF binding specificities. However, a mechanistic understanding of TF-DNA binding specificity determinants is still not available. The ability to predict in vivo TF binding on a genome-wide scale requires the identification of features that determine TF binding based on evolutionary relationships of DNA binding proteins. To reveal protein family-dependent mechanisms of TF binding, we conducted comprehensive comparisons of HM patterns surrounding BSs and non-BSs with exactly matched core motifs for TFs in three cell lines: 33 TFs in GM12878, 37 TFs in K562, and 18 TFs in H1-hESC. These TFs displayed protein family specific preferences for HM patterns surrounding BSs, with high agreement among cell lines. Moreover, compared to models based on DNA sequence and shape at flanking regions of BSs, HM-augmented quantitative machine-learning methods resulted in increased performance in a TF family-specific manner. Analysis of the relative importance of features in these models indicated that TFs, displaying larger HM pattern differences between BSs and non-BSs, bound DNA in an HM specific manner on a protein family-specific basis. We propose that TF family specific HM preferences reveal distinct mechanisms that assist in guiding TFs to their cognate BSs by altering chromatin structure and accessibility. PMID- 29326303 TI - Authors' reply to Sharvill and Beales. PMID- 29326304 TI - Gastrointestinal protection with dual antiplatelet therapies. PMID- 29326302 TI - Role of ClC-K and barttin in low potassium-induced sodium chloride cotransporter activation and hypertension in mouse kidney. AB - The sodium chloride cotransporter (NCC) has been identified as a key molecule regulating potassium balance. The mechanisms of NCC regulation during low extracellular potassium concentrations have been studied in vitro. These studies have shown that hyperpolarization increased chloride efflux, leading to the activation of chloride-sensitive with-no-lysine kinase (WNK) kinases and their downstream molecules, including STE20/SPS1-related proline/alanine-rich kinase (SPAK) and NCC. However, this mechanism was not studied in vivo Previously, we developed the barttin hypomorphic mouse (Bsndneo/neo mice), expressing very low levels of barttin and ClC-K channels, because barttin is an essential beta subunit of ClC-K. In contrast with Bsnd-/- mice, Bsndneo/neo mice survived to adulthood. In Bsndneo/neo mice, SPAK and NCC activation after consuming a low potassium diet was clearly impaired compared with that in wild-type (WT) mice. In ex vivo kidney slice experiment, the increase in pNCC and SPAK in low-potassium medium was also impaired in Bsndneo/neo mice. Furthermore, increased blood pressure was observed in WT mice fed a high-salt and low-potassium diet, which was not evident in Bsndneo/neo mice. Thus, our study provides in vivo evidence that, in response to a low-potassium diet, ClC-K and barttin play important roles in the activation of the WNK4-SPAK-NCC cascade and blood pressure regulation. PMID- 29326305 TI - Evaluation and Management of CKD in the Nonkidney Solid Organ Transplant Recipient. PMID- 29326306 TI - Weekly Standard Kt/Vurea and Clinical Outcomes in Home and In-Center Hemodialysis. AB - BACKGROUND AND OBJECTIVES: Patients undergoing hemodialysis with a frequency other than thrice weekly are not included in current clinical performance metrics for dialysis adequacy. The weekly standard Kt/Vurea incorporates treatment frequency, but there are limited data on its association with clinical outcomes. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We used multivariable regression to examine the association of dialysis standard Kt/Vurea with BP and metabolic control (serum potassium, calcium, bicarbonate, and phosphorus) in patients incidental to dialysis treated with home (n=2373) or in-center hemodialysis (n=109,273). We further used Cox survival models to examine the association of dialysis standard Kt/Vurea with mortality, hospitalization, and among patients on home hemodialysis, transfer to in-center hemodialysis. RESULTS: After adjustment for potential confounders, patients with dialysis standard Kt/Vurea <2.1 had higher BPs compared with patients with standard Kt/Vurea 2.1 to <2.3 (3.4 mm Hg higher [P<0.001] for home hemodialysis and 0.9 mm Hg higher [P<0.001] for in center hemodialysis). There were no clinically meaningful associations between dialysis standard Kt/Vurea and markers of metabolic control, irrespective of dialysis modality. There was no association between dialysis standard Kt/Vurea and risk for mortality, hospitalization, or transfer to in-center hemodialysis among patients undergoing home hemodialysis. Among patients on in-center hemodialysis, dialysis standard Kt/Vurea <2.1 was associated with higher risk (adjusted hazard ratio, 1.11; 95% confidence interval, 1.07 to 1.14) and standard Kt/Vurea >=2.3 was associated with lower risk (adjusted hazard ratio, 0.97; 95% confidence interval, 0.94 to 0.99) for death compared with standard Kt/Vurea 2.1 to <2.3. Additional analyses limited to patients with available data on residual kidney function showed similar relationships of dialysis and total (dialysis plus kidney) standard Kt/Vurea with outcomes. CONCLUSIONS: Current targets for standard Kt/Vurea have limited utility in identifying individuals at increased risk for adverse clinical outcomes for those undergoing home hemodialysis but may enhance risk stratification for in-center hemodialysis. PMID- 29326308 TI - Addressing Physician Burnout: Nephrologists, How Safe Are We? PMID- 29326307 TI - Mycophenolate Mofetil in Combination with Steroids for Treatment of C3 Glomerulopathy: A Case Series. AB - BACKGROUND AND OBJECTIVES: C3 glomerulopathy is a form of complement-mediated GN. Immunosuppressive therapy may be beneficial in the treatment of C3 glomerulopathy. Mycophenolate mofetil is an attractive treatment option given its role in the treatment of other complement-mediated diseases and the results of the Spanish Group for the Study of Glomerular Diseases C3 Study. Here, we study the outcomes of patients with C3 glomerulopathy treated with steroids and mycophenolate mofetil. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a retrospective chart review of patients in the C3 glomerulopathy registry at Columbia University and identified patients treated with mycophenolate mofetil for at least 3 months and follow-up for at least 1 year. We studied clinical, histologic, and genetic data for the whole group and compared data for those who achieved complete or partial remission (responders) with those who did not achieve remission (nonresponders). We compared remission with mycophenolate mofetil with remission with other immunosuppressive regimens. RESULTS: We identified 30 patients who met inclusion criteria. Median age was 25 years old (interquartile range, 18-36), median creatinine was 1.07 mg/dl (interquartile range, 0.79-1.69), and median proteinuria was 3200 mg/g creatinine (interquartile range, 1720-6759). The median follow-up time was 32 months (interquartile range, 21-68). Twenty (67%) patients were classified as responders. There were no significant differences in baseline characteristics between responders and nonresponders, although initial proteinuria was lower (median 2468 mg/g creatinine) in responders compared with nonresponders (median 5000 mg/g creatinine) and soluble membrane attack complex levels were higher in responders compared with nonresponders. For those tapered off mycophenolate mofetil, relapse rate was 50%. Genome-wide analysis on complement genes was done, and in 12 patients, we found 18 variants predicted to be damaging. None of these variants were previously reported to be pathogenic. Mycophenolate mofetil with steroids outperformed other immunosuppressive regimens. CONCLUSIONS: Among patients who tolerated mycophenolate mofetil, combination therapy with steroids induced remission in 67% of this cohort. Heavier proteinuria at the start of therapy and lower soluble membrane attack complex levels were associated with treatment resistance. PMID- 29326309 TI - Nephrology at a Crossroads. PMID- 29326310 TI - Burnout in Nephrology: Implications on Recruitment and the Workforce. PMID- 29326312 TI - FOXO3a (Forkhead Transcription Factor O Subfamily Member 3a) Links Vascular Smooth Muscle Cell Apoptosis, Matrix Breakdown, Atherosclerosis, and Vascular Remodeling Through a Novel Pathway Involving MMP13 (Matrix Metalloproteinase 13). AB - OBJECTIVE: Vascular smooth muscle cell (VSMC) apoptosis accelerates atherosclerosis and promotes breakdown of the extracellular matrix, but the mechanistic links between these 2 processes are unknown. The forkhead protein FOXO3a (forkhead transcription factor O subfamily member 3a) is activated in human atherosclerosis and induces a range of proapoptotic and other transcriptional targets. We, therefore, determined the mechanisms and consequences of FOXO3a activation in atherosclerosis and arterial remodeling after injury. APPROACH AND RESULTS: Expression of a conditional FOXO3a allele (FOXO3aA3ER) potently induced VSMC apoptosis, expression and activation of MMP13 (matrix metalloproteinase 13), and downregulation of endogenous TIMPs (tissue inhibitors of MMPs). mmp13 and mmp2 were direct FOXO3a transcriptional targets in VSMCs. Activation of endogenous FOXO3a also induced MMP13, extracellular matrix degradation, and apoptosis, and MMP13-specific inhibitors and fibronectin reduced FOXO3a-mediated apoptosis. FOXO3a activation in mice with VSMC-restricted FOXO3aA3ER induced MMP13 expression and activity and medial VSMC apoptosis. FOXO3a activation in FOXO3aA3ER/ApoE-/- (apolipoprotein E deficient) mice increased atherosclerosis, increased necrotic core and reduced fibrous cap areas, and induced features of medial degeneration. After carotid artery ligation, FOXO3a activation increased VSMC apoptosis, VSMC proliferation, and neointima formation, all of which were reduced by MMP13 inhibition. CONCLUSIONS: FOXO3a activation induces VSMC apoptosis and extracellular matrix breakdown, in part, because of transcriptional activation of MMP13. FOXO3a activation promotes atherosclerosis and medial degeneration and increases neointima after injury that is partly dependent on MMP13. FOXO3a-induced MMP activation represents a direct mechanistic link between VSMC apoptosis and matrix breakdown in vascular disease. PMID- 29326313 TI - DNA Methylation and Age-Independent Cardiovascular Risk, an Epigenome-Wide Approach: The REGICOR Study (REgistre GIroni del COR). AB - OBJECTIVE: The objectives of this study were to decipher whether age-independent cardiovascular risk is associated with DNA methylation at 5'-cytosine-phosphate guanine-3' (CpG) level and to determine whether these differential methylation signatures are associated with the incidence of cardiovascular events. APPROACH AND RESULTS: We designed a 2-stage, cross-sectional, epigenome-wide association study. Age-independent cardiovascular risk calculation was based on vascular age and on the residuals of the relationship between age and cardiovascular risk. Blood DNA methylomes from 2 independent populations were profiled using the Infinium HumanMethylation450 BeadChip. The discovery stage of these studies was performed in the REGICOR cohort (REgistre GIroni del COR; n=645). Next, we validated the initial findings in the Framingham Offspring Study (n=2542). Eight CpGs located in 4 genes (AHRR, CPT1A, PPIF, and SBNO2) and 3 intergenic regions showed differential methylation in association with age-independent cardiovascular risk (P<=1.17*10-7). These CpGs explained 12.01% to 15.16% of the variability of age-independent cardiovascular risk in REGICOR and 7.51% to 8.53% in Framingham Offspring Study. Four of them were only related to smoking, 3 were related to smoking and body mass index, and 1 to diabetes mellitus, triglycerides levels, and body mass index (P<=7.81*10-4). In addition, we developed methylation risk scores based on these CpGs and observed an association between these scores and cardiovascular disease incidence (hazard ratio=1.32; 95% confidence interval: 1.16-1.51). CONCLUSIONS: Age-independent cardiovascular risk was related to different DNA methylation profiles, with 8 CpGs showing differential methylation patterns. Most of these CpGs were associated with smoking, and 3 of them were also related to body mass index. Risk scores based on these differential methylation patterns were associated with cardiovascular events and could be useful predictive indices. PMID- 29326311 TI - Spatial effects - site-specific regulation of actin and microtubule organization by septin GTPases. AB - The actin and microtubule cytoskeletons comprise a variety of networks with distinct architectures, dynamics and protein composition. A fundamental question in eukaryotic cell biology is how these networks are spatially and temporally controlled, so they are positioned in the right intracellular places at the right time. While significant progress has been made in understanding the self-assembly of actin and microtubule networks, less is known about how they are patterned and regulated in a site-specific manner. In mammalian systems, septins are a large family of GTP-binding proteins that multimerize into higher-order structures, which associate with distinct subsets of actin filaments and microtubules, as well as membranes of specific curvature and lipid composition. Recent studies have shed more light on how septins interact with actin and microtubules, and raised the possibility that the cytoskeletal topology of septins is determined by their membrane specificity. Importantly, new functions have emerged for septins regarding the generation, maintenance and positioning of cytoskeletal networks with distinct organization and biochemical makeup. This Review presents new and past findings, and discusses septins as a unique regulatory module that instructs the local differentiation and positioning of distinct actin and microtubule networks. PMID- 29326314 TI - High-Density Lipoprotein Cholesterol and Mortality: Too Much of a Good Thing? AB - OBJECTIVE: The objective of this study was to examine the shape of the association between high-density lipoprotein cholesterol (HDL-C) and mortality in a large general population sample. APPROACH AND RESULTS: Adult participants (n=37 059; age=57.7+/-11.9 years; 46.8% men) were recruited from general population household-based surveys (Health Survey for England and Scottish Health Survey). Individual participant data were linked with the British National Health Service Central Registry to record mortality. There were 2250 deaths from all causes during 326 016 person-years of follow-up. When compared with the reference category (HDL-C=1.5-1.99 mmol/L), a U-shaped association was apparent for all cause mortality, with elevated risk in participants with the lowest (hazard ratio=1.23; 95% confidence interval, 1.06, 1.44) and highest (1.25; 0.97, 1.62) HDL-C concentration. Associations for cardiovascular disease were linear, and elevated risk was observed in those with the lowest HDL-C concentration (1.49; 1.15, 1.94). CONCLUSIONS: A U-shaped association was observed between HDL-C and mortality in a large general population sample. PMID- 29326315 TI - Plasma n-3 and n-6 Fatty Acids Are Differentially Related to Carotid Plaque and Its Progression: The Multi-Ethnic Study of Atherosclerosis. AB - OBJECTIVE: omega-3 (n-3) fatty acids (FAs) have long been considered healthful dietary components, yet recent clinical trials have questioned their cardiovascular benefits. By contrast, the omega-6 (n-6) FAs have been considered harmful, proatherogenic macronutrients, despite an absence of empirical evidence supporting this hypothesis. We aimed to determine whether plasma n-3 and n-6 FAs are related to risk of carotid plaque and its progression in 3327 participants of MESA (Multi-Ethnic Study of Atherosclerosis). APPROACH AND RESULTS: Carotid plaque was assessed using ultrasonography at baseline and after a median period of 9.5 years. Plasma phospholipid n-3 and n-6 FAs were determined using gas chromatography-flame ionization detection. Relative risk regression analyses assessed the relations of FAs with the presence or progression of carotid plaque adjusted for typical cardiovascular disease risk factors. At baseline, it was found that participants in the fourth quartile of n-3 docosahexaenoic acid showed a 9% lower risk of carotid plaque (P=0.05), whereas those in the second quartile of n-3 alpha-linolenic acid showed an 11% greater risk compared with respective referent quartiles (P=0.02). In prospective analyses, individuals in the top quartile of docosahexaenoic acid showed a 12% lower risk of carotid plaque progression during 9.5 years compared with those in the referent quartile (P=0.002). No significant relations were observed among n-6 FAs and plaque outcomes. No significant race/ethnicity interactions were found. CONCLUSIONS: These findings support docosahexaenoic acid as an atheroprotective macronutrient, whereas null findings for n-6 FAs challenge the view that they promote atherosclerosis. PMID- 29326316 TI - Fibronectin Containing Extra Domain A Induces Plaque Destabilization in the Innominate Artery of Aged Apolipoprotein E-Deficient Mice. AB - OBJECTIVE: Fibronectin containing extra domain A (Fn-EDA) is an endogenous ligand of TLR4 (toll-like receptor 4) and is abundant in the extracellular matrix of advanced atherosclerotic lesions in human and mice. Irrespective of sex, deletion of Fn-EDA reduces early atherosclerosis in apolipoprotein E-deficient (Apoe-/-) mice. However, the contribution of Fn-EDA in advanced atherosclerosis remains poorly characterized. We determined the contribution of Fn-EDA in advanced atherosclerotic lesions of aged (1-year-old) Apoe-/- mice. APPROACH AND RESULTS: Plaque composition was determined in the innominate artery, a plaque instability site that is known to mimic several histological features of vulnerable human plaques. Female Apoe-/-, Fn-EDA-/-Apoe-/-, TLR4-/-Apoe-/-, and Fn-EDA-/-TLR4-/ Apoe-/- mice were fed a high-fat Western diet for 44 weeks. Fn-EDA-/-Apoe-/- mice exhibited reduced plaque size characterized by smaller necrotic cores, thick fibrous caps containing abundant vascular smooth muscle cells and collagen, reduced CD68/MMP9 (matrix metalloproteinase 9)-positive content, less accumulation of MMP-cleaved extracellular matrix aggrecan, and decreased vascular smooth muscle cell and macrophage apoptosis (P<0.05 versus Apoe-/- mice). Together these findings suggest that Fn-EDA induces plaque destabilization. Deletion of TLR4 reduced histological features of plaque instability in Apoe-/- mice but did not further reduce features of plaque destabilization in Fn-EDA-/ Apoe-/- mice, suggesting that TLR4 may contribute to Fn-EDA-induced plaque destabilization. Fn-EDA potentiated TLR4-dependent MMP9 expression in bone marrow derived macrophages, suggesting that macrophage TLR4 may contribute to Fn-EDA mediated plaque instability. CONCLUSIONS: Fn-EDA induces histological features of plaque instability in established lesions of aged Apoe-/- mice. The abundance of Fn-EDA in advanced atherosclerotic lesions may increase the risk of plaque destabilization. PMID- 29326319 TI - Cross-infection risk in patients with bronchiectasis: a position statement from the European Bronchiectasis Network (EMBARC), EMBARC/ELF patient advisory group and European Reference Network (ERN-Lung) Bronchiectasis Network. PMID- 29326318 TI - Long-term benefits of airway clearance in bronchiectasis: a randomised placebo controlled trial. AB - Keeping airways clear of mucus by airway clearance techniques seems essential in bronchiectasis treatment, although no placebo-controlled trials or any studies lasting longer than 3 months have been conducted. We evaluate the efficacy of the ELTGOL (slow expiration with the glottis opened in the lateral posture) technique over a 1-year period in bronchiectasis patients with chronic expectoration in a randomised placebo-controlled trial.Patients were randomised to perform the ELTGOL technique (n=22) or placebo exercises (n=22) twice-daily (ClinicalTrials.gov, NCT01578681). The primary outcome was sputum volume during the first intervention and 24 h later. Secondary outcomes included sputum volume during the intervention and 24 h later at month 12, exacerbations, quality of life, sputum analyses, pulmonary function, exercise capacity, systemic inflammation, treatment adherence, and side effects.Sputum volume during intervention and 24 h later was higher in the ELTGOL group than in the placebo group both at the beginning and end of the study. Patients in the ELTGOL group had fewer exacerbations (p=0.042) and a clinically significant improvement in the St George's Respiratory Questionnaire score (p<0.001) and the Leicester Cough Questionnaire score compared with the placebo group (p<0.001).Twice-daily ELTGOL technique over 1 year in bronchiectasis patients facilitated secretion removal and was associated with fewer exacerbations, improved quality of life, and reduced cough impact. PMID- 29326317 TI - Comparative analysis of the safety and efficacy of intracameral cefuroxime, moxifloxacin and vancomycin at the end of cataract surgery: a meta-analysis. AB - BACKGROUND: Current practice methods are unclear as to the most safe and effective prophylactic pharmacotherapy and method of delivery to reduce postoperative endophthalmitis occurrence. METHODS: A systematic review and meta analysis using Meta-analysis of Observational Studies in Epidemiology guidelines was performed to compare the efficacy of intracameral cefuroxime, moxifloxacin and vancomycin in preventing postphacoemulsification cataract surgery endophthalmitis. A safety analysis of intracameral antibiotics was concurrently performed. DATA SOURCES: BIOSIS Previews, CINAHL, ClinicalTrials.gov, Cochrane Library, Dissertations & Theses, EMBASE, PubMed, ScienceDirect and Scopus were searched from inception to January 2017. Data were pooled using a random effects model. All articles were individually reviewed and data were extracted by two independent reviewers. Funnel plot, risk of bias and quality of evidence analyses were performed. RESULTS: Seventeen studies with over 900 000 eyes were included, which favoured the use of intracameral antibiotics at the end of cataract surgery (OR 0.20; 95% CI 0.13 to 0.32; P<0.00001). The average weighted postoperative endophthalmitis incidence rates with intracameral cefuroxime, moxifloxacin and vancomycin were 0.0332%, 0.0153% and 0.0106%, respectively. Secondary analyses showed no difference in efficacy between intracameral plus topical antibiotics versus intracameral alone (P>0.3). Most studies had low to moderate risk of bias. The safety analysis showed minimal toxicity for moxifloxacin. Dosing errors led to the majority of toxicities with cefuroxime. Although rare, vancomycin was associated with toxic retinal events. CONCLUSION: Intracameral cefuroxime and moxifloxacin reduced endophthalmitis rates compared with controls with minimal or no toxicity events at standard doses. Additionally, intracameral antibiotics alone may be as effective as intracameral plus topical antibiotics. PMID- 29326320 TI - Lack of penetration of amikacin into saliva of tuberculosis patients. PMID- 29326321 TI - Tuberculosis elimination: a dream or a reality? The case of Oman. PMID- 29326322 TI - ELTGOL airway clearance in bronchiectasis: laying the bricks of evidence. PMID- 29326323 TI - Time for a longer and better life for patients with COPD. PMID- 29326325 TI - Breath analysis for label-free characterisation of airways disease. PMID- 29326324 TI - Pulmonary rehabilitation for patients with COPD during and after an exacerbation related hospitalisation: back to the future? PMID- 29326327 TI - National roll-out of latent tuberculosis testing and treatment for new migrants in England: a retrospective evaluation in a high-incidence area. AB - Latent tuberculosis infection (LTBI) screening is an important intervention for tuberculosis (TB) elimination in low-incidence countries and is, therefore, a key component of England's TB control strategy. This study describes outcomes from a LTBI screening programme in a high-incidence area to inform national LTBI screening in England and other low-incidence countries.We conducted a retrospective cohort study of LTBI screening among eligible migrants (from high incidence countries and entered the UK within the last 5 years), who were identified at primary-care clinics in Newham, London between August 2014 and August 2015. Multivariable logistic regression was used to identify factors associated with LTBI testing uptake, interferon-gamma release assay (IGRA) positivity and treatment uptake.40% of individuals offered LTBI screening received an IGRA test. The majority of individuals tested were 16-35 years old, male and born in India, Bangladesh or Pakistan. Country of birth, smoking status and co-morbidities were associated with LTBI testing uptake. IGRA positivity was 32% among those tested and was significantly associated with country of birth, age, sex and co-morbidities.This study identifies factors associated with screening uptake, IGRA positivity and treatment uptake, and improves understanding of groups that should be supported to increase acceptability of LTBI testing and treatment in the community. PMID- 29326329 TI - Balloon pulmonary angioplasty in sarcoid-related pulmonary hypertension. PMID- 29326328 TI - Pulmonary rehabilitation for patients with COPD during and after an exacerbation related hospitalisation: back to the future? PMID- 29326330 TI - Program of Integrated Care for Patients with Chronic Obstructive Pulmonary Disease and Multiple Comorbidities (PIC COPD+): a randomised controlled trial. AB - We sought to evaluate the effectiveness of a multi-component, case manager-led exacerbation prevention/management model for reducing emergency department visits. Secondary outcomes included hospitalisation, mortality, health-related quality of life, chronic obstructive pulmonary disease (COPD) severity, COPD self efficacy, anxiety and depression.Two-centre randomised controlled trial recruiting patients with >=2 prognostically important COPD-associated comorbidities. We compared our multi-component intervention including individualised care/action plans and telephone consults (12-weekly then 9 monthly) with usual care (both groups). We used zero-inflated Poisson models to examine emergency department visits and hospitalisation; Cox proportional hazard model for mortality.We randomised 470 participants (236 intervention, 234 control). There were no differences in number of emergency department visits or hospital admissions between groups. We detected difference in emergency department visit risk, for those that visited the emergency department, favouring the intervention (RR 0.74, 95% CI 0.63-0.86). Similarly, risk of hospital admission was lower in the intervention group for those requiring hospital admission (RR 0.69, 95% CI 0.54-0.88). Fewer intervention patients died (21 versus 36) (HR 0.56, 95% CI 0.32-0.95). No differences were detected in other secondary outcomes.Our multi-component, case manager-led exacerbation prevention/management model resulted in no difference in emergency department visits, hospital admissions and other secondary outcomes. Estimated risk of death (intervention) was nearly half that of the control. PMID- 29326331 TI - Predicting response to oxygen therapy in obstructive sleep apnoea patients using a 10-minute daytime test. AB - There is no satisfactory treatment for obstructive sleep apnoea (OSA). Supplemental low-flow oxygen therapy (LFO2) has been shown to reduce hypoxaemia and is well tolerated by patients with OSA. However, oxygen therapy may be beneficial only to certain subsets of patients with OSA. In this study, we evaluated a 10-min awake ventilatory chemoreflex test in predicting individual OSA response to 2 months of LFO2 therapy.At baseline, patients with OSA underwent ventilatory chemoreflex testing in the afternoon, prior to the overnight polysomnography. Subjects were reassessed with polysomnography after 2 months of nocturnal oxygen treatment.20 patients with OSA completed the study. After 2 months of O2 treatment, changes in the apnoea-hypopnoea index (AHI) were significantly correlated with baseline CO2 ventilatory response threshold (VRT) and chemosensitivity (p<0.05). In predicting a fall in AHI, the area under the receiver operating characteristic curve (AUC) was 0.79 for VRT and 0.89 for chemosensitivity. When these two variables were combined in a logistic regression model, the prediction effect became stronger with an AUC of 0.97, sensitivity of 0.92 and specificity of 0.83.Our awake ventilatory chemoreflex test could be considered a simple potential clinical tool to predict individual OSA response to oxygen therapy. It could provide a novel personalised medicine approach to OSA treatment. PMID- 29326332 TI - The impact of digital health technologies on tuberculosis treatment: a systematic review. AB - Digital technologies are increasingly harnessed to support treatment of persons with tuberculosis (TB). Since in-person directly observed treatment (DOT) can be resource intensive and challenging to implement, these technologies may have the potential to improve adherence and clinical outcomes. We reviewed the effect of these technologies on TB treatment adherence and patient outcomes.We searched several bibliographical databases for studies reporting the effect of digital interventions, including short message service (SMS), video-observed therapy (VOT) and medication monitors (MMs), to support treatment for active TB. Only studies with a control group and which reported effect estimates were included.Four trials showed no statistically significant effect on treatment completion when SMS was added to standard care. Two observational studies of VOT reported comparable treatment completion rates when compared with in-person DOT. MMs increased the probability of cure (RR 2.3, 95% CI 1.6-3.4) in one observational study, and one trial reported a statistically significant reduction in missed treatment doses relative to standard care (adjusted means ratio 0.58, 95% CI 0.42-0.79).Evidence of the effect of digital technologies to improve TB care remains limited. More studies of better quality are needed to determine how such technologies can enhance programme performance. PMID- 29326333 TI - COMET: a multicomponent home-based disease-management programme versus routine care in severe COPD. AB - The COPD Patient Management European Trial (COMET) investigated the efficacy and safety of a home-based COPD disease management intervention for severe COPD patients.The study was an international open-design clinical trial in COPD patients (forced expiratory volume in 1 s <50% of predicted value) randomised 1:1 to the disease management intervention or to the usual management practices at the study centre. The disease management intervention included a self-management programme, home telemonitoring, care coordination and medical management. The primary end-point was the number of unplanned all-cause hospitalisation days in the intention-to-treat (ITT) population. Secondary end-points included acute care hospitalisation days, BODE (body mass index, airflow obstruction, dyspnoea and exercise) index and exacerbations. Safety end-points included adverse events and deaths.For the 157 (disease management) and 162 (usual management) patients eligible for ITT analyses, all-cause hospitalisation days per year (mean+/-sd) were 17.4+/-35.4 and 22.6+/-41.8, respectively (mean difference -5.3, 95% CI 13.7 to -3.1; p=0.16). The disease management group had fewer per-protocol acute care hospitalisation days per year (p=0.047), a lower BODE index (p=0.01) and a lower mortality rate (1.9% versus 14.2%; p<0.001), with no difference in exacerbation frequency. Patient profiles and hospitalisation practices varied substantially across countries.The COMET disease management intervention did not significantly reduce unplanned all-cause hospitalisation days, but reduced acute care hospitalisation days and mortality in severe COPD patients. PMID- 29326334 TI - Clinical and inflammatory phenotyping by breathomics in chronic airway diseases irrespective of the diagnostic label. AB - Asthma and chronic obstructive pulmonary disease (COPD) are complex and overlapping diseases that include inflammatory phenotypes. Novel anti eosinophilic/anti-neutrophilic strategies demand rapid inflammatory phenotyping, which might be accessible from exhaled breath.Our objective was to capture clinical/inflammatory phenotypes in patients with chronic airway disease using an electronic nose (eNose) in a training and validation set.This was a multicentre cross-sectional study in which exhaled breath from asthma and COPD patients (n=435; training n=321 and validation n=114) was analysed using eNose technology. Data analysis involved signal processing and statistics based on principal component analysis followed by unsupervised cluster analysis and supervised linear regression.Clustering based on eNose resulted in five significant combined asthma and COPD clusters that differed regarding ethnicity (p=0.01), systemic eosinophilia (p=0.02) and neutrophilia (p=0.03), body mass index (p=0.04), exhaled nitric oxide fraction (p<0.01), atopy (p<0.01) and exacerbation rate (p<0.01). Significant regression models were found for the prediction of eosinophilic (R2=0.581) and neutrophilic (R2=0.409) blood counts based on eNose. Similar clusters and regression results were obtained in the validation set.Phenotyping a combined sample of asthma and COPD patients using eNose provides validated clusters that are not determined by diagnosis, but rather by clinical/inflammatory characteristics. eNose identified systemic neutrophilia and/or eosinophilia in a dose-dependent manner. PMID- 29326335 TI - Baclofen and sleep apnoea syndrome: analysis of VigiBase, the WHO pharmacovigilance database. PMID- 29326337 TI - Acid-Suppressive Drug Use During Pregnancy and the Risk of Childhood Asthma: A Meta-analysis. AB - CONTEXT: The association between acid-suppressive drug exposure during pregnancy and childhood asthma has not been well established. OBJECTIVE: To conduct a systematic review and meta-analysis on this association to provide further justification for the current studies. DATA SOURCES: We searched PubMed, Medline, Embase, the Cochrane Database of Systematic Reviews, EBSCO Information Services, Web of Science, and Google Scholar from inception until June 2017. STUDY SELECTION: Observational studies in which researchers assessed acid-suppressive drug use during pregnancy and the risk of childhood asthma were included. DATA EXTRACTION: Of 556 screened articles, 8 population-based studies were included in the final analyses. RESULTS: When all the studies were pooled, acid-suppressive drug use in pregnancy was associated with an increased risk of asthma in childhood (relative risk [RR] = 1.45; 95% confidence interval [CI] 1.35-1.56; I2 = 0%; P < .00001). The overall risk of asthma in childhood increased among proton pump inhibitor users (RR = 1.34; 95% CI 1.18-1.52; I2 = 46%; P < .00001) and histamine-2 receptor antagonist users (RR = 1.57; 95% CI 1.46-1.69; I2 = 0%; P < .00001). LIMITATIONS: None of the researchers in the studies in this meta analysis adjusted for the full panel of known confounders in these associations. CONCLUSIONS: The evidence suggests that prenatal, maternal, acid-suppressive drug use is associated with an increased risk of childhood asthma. This information may help clinicians and parents to use caution when deciding whether to take acid suppressing drugs during pregnancy because of the risk of asthma in offspring. PMID- 29326338 TI - Acid Suppressant Use in Pregnancy and Asthma in Offspring: Should We Be Worried? PMID- 29326339 TI - Ninety-year-old man with hypereosinophilia, lymphadenopathies and pruritus. AB - We report a case of a 90-year-old man with hypereosinophilia, lymphadenopathies and skin lesions, namely lichenification and pruritus. An aetiological investigation was performed, and a bone marrow (BM) biopsy and aspirate showed a hypercellular marrow with hypereosinophilia without dysmorphia or abnormal elements, and the BM and inguinal node's immunophenotyping denied any presence of abnormal lymphoid cell population. The inguinal node biopsy revealed a multinodular proliferation of large cells S100 and CD1a+, and a diagnosis of Langerhans cell histiocytosis was made. The hypereosinophilia and skin lesions were managed with corticotherapy with substantial improvement of cutaneous lesions and lymphadenopathies and normalisation of eosinophil count. Finally, to define if it is a single or multisystem disease, a skin biopsy will be necessary. PMID- 29326336 TI - ARID5B as a critical downstream target of the TAL1 complex that activates the oncogenic transcriptional program and promotes T-cell leukemogenesis. AB - The oncogenic transcription factor TAL1/SCL induces an aberrant transcriptional program in T-cell acute lymphoblastic leukemia (T-ALL) cells. However, the critical factors that are directly activated by TAL1 and contribute to T-ALL pathogenesis are largely unknown. Here, we identified AT-rich interactive domain 5B (ARID5B) as a collaborating oncogenic factor involved in the transcriptional program in T-ALL. ARID5B expression is down-regulated at the double-negative 2-4 stages in normal thymocytes, while it is induced by the TAL1 complex in human T ALL cells. The enhancer located 135 kb upstream of the ARID5B gene locus is activated under a superenhancer in T-ALL cells but not in normal T cells. Notably, ARID5B-bound regions are associated predominantly with active transcription. ARID5B and TAL1 frequently co-occupy target genes and coordinately control their expression. ARID5B positively regulates the expression of TAL1 and its regulatory partners. ARID5B also activates the expression of the oncogene MYC Importantly, ARID5B is required for the survival and growth of T-ALL cells, and forced expression of ARID5B in immature thymocytes results in thymus retention, differentiation arrest, radioresistance, and tumor formation in zebrafish. Our results indicate that ARID5B reinforces the oncogenic transcriptional program by positively regulating the TAL1-induced regulatory circuit and MYC in T-ALL, thereby contributing to T-cell leukemogenesis. PMID- 29326340 TI - Rare cause of pulmonary cavitation in a 75-year-old man. AB - A 75-year-old man of Asian descent presented to the acute medical unit with signs and symptoms suggestive of a community-acquired pneumonia. He had multiple comorbidities and was relatively immunocompromised as a result. Initial investigations supported the diagnosis of community-acquired pneumonia complicated by a cavitating lung lesion, and the patient was treated as per hospital guidelines. He continued to deteriorate despite appropriate therapy and developed a hydropneumothorax, requiring the insertion of a chest drain. A diagnosis of pulmonary mucormycosis (Rhizopus microsporus) was made based on microbiology results from pleural aspirate, and patient was treated with intravenous antifungals. The patient was referred to the thoracic team for consideration of surgical intervention but was not suitable due to his multiple comorbidities. This case highlighted the importance of early consideration of fungal infection in patients with multiple risk factors and the need for aggressive therapy to ensure the best outcome. PMID- 29326341 TI - Endometrial Adenocarcinoma With Pulmonary Recurrence. PMID- 29326342 TI - Intradiploic cephalocele: a rare entity at a rare site. PMID- 29326343 TI - Cervical ganglioneuroma: clinical and radiological features of a rare tumour. PMID- 29326344 TI - Sternocleidomastoid tumour in neonate: fibromatosis colli. PMID- 29326345 TI - microRNA-452 exerts growth-suppressive activity against T-cell acute lymphoblastic leukemia. AB - T-cell acute lymphoblastic leukemia (T-ALL) is an aggressive hematological cancer. Although microRNA (miR)-452 serves as a tumor suppressor in multiple solid tumors, its expression and function in hematological cancers including T ALL is largely unknown. We measured the expression of miR-452 in 38 T-ALL and 22 normal lymph node samples by real-time PCR analysis. The methylation levels in the promoter of miR-452 were determined using MethyLight assay. The effects of miR-452 overexpression on proliferation, cell cycle distribution, and tumorigenesis were explored. It was found that miR-452 expression levels were significantly lower in T-ALL specimens than in normal lymph node biopsies (P=0.0079). T-ALL specimens had a significantly higher methylation level in the promoter of miR-452 than normal lymph node tissues (P=0.0014). Consistently, miR 452 was downregulated in Jurkat and Molt-4 T-ALL cells, whose expression was restored after treatment with a demethylation agent 5-aza-2'-deoxycytidine. Ectopic expression of miR-452 inhibited the proliferation of Jurkat and Molt-4 cells and induced a G0/G1 cell cycle arrest. Overexpression of miR-452 suppressed the protein expression of BMI1 in T-ALL cells. Rescue experiments revealed that overexpression of BMI1 partially reversed the growth-suppressive effect of miR 452 on T-ALL cells. Xenograft tumor studies confirmed that overexpression of miR 452 suppressed tumor growth in nude mice and reduced the expression of BMI1. Collectively, miR-452 is epigenetically silenced and targets BMI1 to exert a growth suppressive activity in T-ALL. Restoration of miR-452 expression may represent a promising therapeutic strategy for this malignancy. PMID- 29326346 TI - UN pledges to tackle environmental health risks. PMID- 29326347 TI - Limited-stage DLBCL: it's patient selection. PMID- 29326348 TI - Choosing ibrutinib wisely. PMID- 29326349 TI - NOTCHing down a win for megakaryocytes. PMID- 29326350 TI - Clinicogenetic risk modeling in ATL. PMID- 29326352 TI - Talaromyces marneffei and dysplastic neutrophils on blood smear in newly diagnosed HIV. PMID- 29326351 TI - NK cell destiny after haploSCT with PT-Cy. PMID- 29326353 TI - When a marginal zone-type lymphocytosis mimics large granular lymphocytes. PMID- 29326354 TI - Accuracy of Dose Calibrators for 68Ga PET Imaging: Unexpected Findings in a Multicenter Clinical Pretrial Assessment. AB - We report the discovery of a systematic miscalibration during the work-up process for site validation of a multicenter clinical PET imaging trial using 68Ga, which manifested as a consistent and reproducible underestimation in the quantitative accuracy (assessed by SUV) of a range of PET systems from different manufacturers at several different facilities around Australia. Methods: Sites were asked to follow a strict preparation protocol to create a radioactive phantom with 68Ga to be imaged using a standard clinical protocol before commencing imaging in the trial. All sites had routinely used 68Ga for clinical PET imaging for many years. The reconstructed image data were transferred to an imaging core laboratory for analysis, along with information about ancillary equipment such as the radionuclide dose calibrator. Fourteen PET systems were assessed from 10 nuclear medicine facilities in Australia, with the aim for each PET system being to produce images within 5% of the true SUV. Results: At initial testing, 10 of the 14 PET systems underestimated the SUV by 15% on average (range, 13%-23%). Multiple PET systems at one site, from two different manufacturers, were all similarly affected, suggesting a common cause. We eventually identified an incorrect factory-shipped dose calibrator setting from a single manufacturer as being the cause. The calibrator setting for 68Ga was subsequently adjusted by the users so that the reconstructed images produced accurate values. Conclusion: PET imaging involves a chain of measurements and calibrations to produce accurate quantitative performance. Testing of the entire chain is simple, however, and should form part of any quality assurance program or prequalifying site assessment before commencing a quantitative imaging trial or clinical imaging. PMID- 29326356 TI - Cerebrospinal Fluid, Hyposmia, and Dementia in Alzheimer Disease: Insights from Dynamic PET and a Hypothesis. PMID- 29326355 TI - 18F-FEDAC as a Targeting Agent for Activated Macrophages in DBA/1 Mice with Collagen-Induced Arthritis: Comparison with 18F-FDG. AB - Activated macrophages have been known to play pivotal roles in the pathogenesis of rheumatoid arthritis (RA). 18F-FEDAC (N-benzyl-N-methyl-2-[7,8-dihydro-7-(2 18F-fluoroethyl)-8-oxo-2-phenyl-9H-purin-9-yl]acetamide) is a radiolabeled ligand for the 18-kDa translocator protein (TSPO), which is abundant in activated macrophages. We evaluated the feasibility of using 18F-FEDAC in a murine RA model. Methods: RAW 264.7 mouse macrophages were activated by lipopolysaccharide. TSPO expression levels in activated and inactivated macrophages were measured by quantitative polymerase chain reaction and Western blotting. The cellular uptake and specific binding of 18F-FEDAC were measured using a gamma-counter. For the in vivo study, collagen-induced arthritis (CIA) was developed in DBA/1 mice, and the clinical score for arthritis was measured regularly. 18F-FEDAC and 18F-FDG PET images were acquired on days 23 and 37 after the first immunization. Histologic examinations were performed to evaluate macrophages and TSPO expression. Results: We found increased TSPO messenger RNA and protein expression in activated macrophages. Uptake of 18F-FEDAC in activated macrophages was higher than that in nonactivated cells and was successfully blocked by the competitor, PK11195. In CIA mice, joint swelling was apparent on day 26 after the first immunization, and the condition worsened by day 37. 18F-FEDAC uptake by arthritic joints increased early on (day 23), whereas 18F-FDG uptake did not. However, 18F-FDG uptake by arthritic joints markedly increased at later stages (day 37) to a higher level than 18F-FEDAC uptake. The 18F-FEDAC uptake correlated weakly with summed severity score (P = 0.019, r = 0.313), whereas the 18F-FDG uptake correlated strongly with summed severity score (P < 0.001, r = 0.897). Histologic sections of arthritic joints demonstrated an influx of macrophages compared with that in normal joints. Conclusion:18F-FEDAC enabled the visualization of active inflammation sites in arthritic joints in a CIA model by targeting TSPO expression in activated macrophages. The results suggest the potential usefulness of 18F-FEDAC imaging in the early phase of RA. PMID- 29326357 TI - Gauging Cardiac Repair and Regeneration with New Molecular Probes. PMID- 29326358 TI - Targeted alpha-Therapy of Metastatic Castration-Resistant Prostate Cancer with 225Ac-PSMA-617: Swimmer-Plot Analysis Suggests Efficacy Regarding Duration of Tumor Control. AB - The aim of this evaluation was to identify the first indicators of efficacy for 225Ac-labeled prostate-specific membrane antigen (PSMA)-617 therapy in a retrospectively analyzed group of patients. Methods: Forty patients with metastatic castration-resistant prostate cancer were selected for treatment with three 100 kBq/kg cycles of 225Ac-PSMA-617 at 2-mo intervals. Prostate-specific antigen (PSA) and blood cell count were measured every 4 wk. PSMA PET/CT or PSMA SPECT/CT were used for baseline staging and imaging follow-up at month 6. Follow up included the duration of PSA response and radiologic progression-free survival at month 6. Patient histories were reviewed for the duration of previous treatment lines, and a swimmer plot was used to intraindividually compare the duration of tumor control by PSMA therapy versus prior treatment modalities. Results: Thirty-one of 40 patients were treated per protocol. Five patients discontinued treatment because of nonresponse, and 4 because of xerostomia. Of the 38 patients surviving at least 8 wk, 24 (63%) had a PSA decline of more than 50%, and 33 (87%) had a PSA response of any degree. The median duration of tumor control under 225Ac-PSMA-617 last-line therapy was 9.0 mo; 5 patients had an enduring response of more than 2 y. Because all patients had advanced disease, this result compares favorably with the tumor control rates associated with earlier-phase disease; the most common preceding first-, second-, third-, and fourth-line therapies were abiraterone (median duration 10.0 mo), docetaxel (6.5 mo), enzalutamide (6.5 mo), and cabazitaxel (6.0 mo), respectively. Conclusion: A positive response for surrogate parameters demonstrates remarkable antitumor activity for 225Ac-PSMA-617. Swimmer-plot analysis indicates a promising duration of tumor control, especially considering the unfavorable prognostic profile of the selected advanced-stage patients. Xerostomia was the main reason patients discontinued therapy or refused additional administrations and was in the same dimension as nonresponse; this finding indicates that further modifications of the treatment regimen with regard to side effects might be necessary to further enhance the therapeutic range. PMID- 29326359 TI - Doxorubicin Effect on Myocardial Metabolism as a Prerequisite for Subsequent Development of Cardiac Toxicity: Are There Unsuspected Confounders? PMID- 29326360 TI - Immuno-PET in Inflammatory Bowel Disease: Imaging CD4-Positive T Cells in a Murine Model of Colitis. AB - Inflammatory bowel diseases (IBDs) in humans are characterized in part by aberrant CD4-positive (CD4+) T-cell responses. Currently, identification of foci of inflammation within the gut requires invasive procedures such as colonoscopy and biopsy. Molecular imaging with antibody fragment probes could be used to noninvasively monitor cell subsets causing intestinal inflammation. Here, GK1.5 cys-diabody (cDb), an antimouse CD4 antibody fragment derived from the GK1.5 hybridoma, was used as a PET probe for CD4+ T cells in the dextran sulfate sodium (DSS) mouse model of IBD. Methods: The DSS mouse model of IBD was validated by assessing changes in CD4+ T cells in the spleen and mesenteric lymph nodes (MLNs) using flow cytometry. Furthermore, CD4+ T cell infiltration in the colons of colitic mice was evaluated using immunohistochemistry. 89Zr-labeled GK1.5 cDb was used to image distribution of CD4+ T cells in the abdominal region and lymphoid organs of mice with DSS-induced colitis. Region-of-interest analysis was performed on specific regions of the gut to quantify probe uptake. Colons, ceca, and MLNs were removed and imaged ex vivo by PET. Imaging results were confirmed by ex vivo biodistribution analysis. Results: An increased number of CD4+ T cells in the colons of colitic mice was confirmed by anti-CD4 immunohistochemistry. Increased uptake of 89Zr-maleimide-deferoxamine (malDFO)-GK1.5 cDb in the distal colon of colitic mice was visible in vivo in PET scans, and region-of-interest analysis of the distal colon confirmed increased activity in DSS mice. MLNs from colitic mice were enlarged and visible in PET images. Ex vivo scans and biodistribution confirmed higher uptake in DSS-treated colons (DSS, 1.8 +/- 0.40; control, 0.45 +/- 0.12 percentage injected dose [%ID] per organ, respectively), ceca (DSS, 1.1 +/- 0.38; control, 0.35 +/- 0.09 %ID per organ), and MLNs (DSS, 1.1 +/- 0.58; control, 0.37 +/- 0.25 %ID per organ). Conclusion:89Zr-malDFO-GK1.5 cDb detected CD4+ T cells in the colons, ceca, and MLNs of colitic mice and may prove useful for further investigations of CD4+ T cells in preclinical models of IBD, with potential to guide development of antibody-based imaging in human IBD. PMID- 29326361 TI - Molecular Imaging of Bacteria in Patients Is an Attractive Fata Morgana, Not a Realistic Option. PMID- 29326362 TI - 18F-PBR111 PET Imaging in Healthy Controls and Schizophrenia: Test-Retest Reproducibility and Quantification of Neuroinflammation. AB - Activated microglia express the translocator protein (TSPO) on the outer mitochondrial membrane. 18F-PBR111 is a second-generation PET ligand that specifically binds the TSPO, allowing in vivo visualization and quantification of neuroinflammation. The aim of this study was to evaluate whether the test-retest variability of 18F-PBR111 in healthy controls is acceptable to detect a psychosis associated neuroinflammatory signal in schizophrenia. Methods: Dynamic 90-min 18F PBR111 scans were obtained in 17 healthy male controls (HCs) and 11 male schizophrenia patients (SPs) during a psychotic episode. Prior genotyping for the rs6917 polymorphism distinguished high-affinity binders (HABs) and mixed-affinity binders (MABs). Total volume of distribution (VT) was determined from 2-tissue compartment modeling with vascular trapping and a metabolite-corrected plasma input function. A subgroup of HCs (n = 12; 4 HABs and 8 MABs) was scanned twice to assess absolute test-retest variability and intraclass correlation coefficients of the regional VT values. Differences in TSPO binding between HC and SP were assessed using mixed model analysis adjusting for age, genotype, and age*cohort. The effect of using different scan durations (VT-60 min versus VT-90 min) was determined based on Pearson r. Data were mean +/- SD. Results: Mean absolute variability in VT ranged from 16% +/- 14% (19% +/- 20% HAB; 15% +/- 11% MAB) in the cortical gray matter to 22% +/- 15% (23% +/- 15% HAB; 22% +/- 16% MAB) in the hippocampus. Intraclass correlation coefficients were consistently between 0.64 and 0.82 for all tested regions. TSPO binding in SP compared with HC depended on age (cohort*age: P < 0.05) and was increased by +14% +/- 4% over the regions. There was a significant effect of genotype on TSPO binding, and VT of HABs was 31% +/- 8% (HC: 17% +/- 5%, SP: 61% +/- 14%) higher than MABs. Across all clinical groups, VT-60 min and VT-90 min were strongly correlated (r > 0.7, P < 0.0001). Conclusion:18F-PBR111 can be used for monitoring of TSPO binding, as shown by medium test-retest variability and reliability of VT in HCs. Microglial activation is present in SPs depending on age and needs to be adjusted for genotype. PMID- 29326363 TI - Research, Research, Otherwise We Are lost! PMID- 29326364 TI - Inflammation and PD-L1 expression in pulmonary neuroendocrine tumors. AB - In the light of novel cancer immune therapies, the status of antitumor inflammatory response and its regulation has gained much attention in patients with lung cancer. Ample datasets exist for non-small-cell lung cancer, but those for pulmonary neuroendocrine tumors are scarce and controversial. Here, tumor associated inflammation, CD8+ cell infiltration and PD-L1 status were evaluated in a cohort of 57 resected carcinoids and 185 resected neuroendocrine carcinomas of the lung (58 large cell carcinomas and 127 small cell carcinomas). Data were correlated with clinicopathological factors and survival. Moderate or high tumor associated inflammation was detected in 4 carcinoids (7%) and in 37 neuroendocrine carcinomas (20%). PD-L1 immunoreactivity was seen in immune cells of 73 (39%) neuroendocrine carcinomas, while tumor cells were labeled in 21 (11%) cases. Inflammatory cells and tumor cells in carcinoids lacked any PD-L1 expression. In neuroendocrine carcinomas, PD-L1 positivity in immune cells, but not in tumor cells, was associated with intratumoral CD8+ cell infiltration (P < 0.001), as well as with the severity of tumor-associated inflammation (P < 0.001). In neuroendocrine carcinomas, tumor-associated inflammation and PD-L1 positivity in immune cells correlated with prolonged survival and the latter factor was also an independent prognosticator (P < 0.01, hazard ratio 0.4 for overall survival, P < 0.001 hazard ratio 0.4 for disease-free survival). Taken together, in neuroendocrine tumors, antitumor inflammatory response and PD-L1 expression are largely restricted to neuroendocrine carcinomas, and in this tumor entity, PD-L1 expression in inflammatory cells is positively correlated to patient survival. PMID- 29326365 TI - Disruption of Mitochondria-Associated Endoplasmic Reticulum Membrane (MAM) Integrity Contributes to Muscle Insulin Resistance in Mice and Humans. AB - Modifications of the interactions between endoplasmic reticulum (ER) and mitochondria, defined as mitochondria-associated membranes (MAMs), were recently shown to be involved in the control of hepatic insulin action and glucose homeostasis, but with conflicting results. Whereas skeletal muscle is the primary site of insulin-mediated glucose uptake and the main target for alterations in insulin-resistant states, the relevance of MAM integrity in muscle insulin resistance is unknown. Deciphering the importance of MAMs on muscle insulin signaling could help to clarify this controversy. Here, we show in skeletal muscle of different mice models of obesity and type 2 diabetes (T2D) a marked disruption of ER-mitochondria interactions as an early event preceding mitochondrial dysfunction and insulin resistance. Furthermore, in human myotubes, palmitate-induced insulin resistance is associated with a reduction of structural and functional ER-mitochondria interactions. Importantly, experimental increase of ER-mitochondria contacts in human myotubes prevents palmitate-induced alterations of insulin signaling and action, whereas disruption of MAM integrity alters the action of the hormone. Lastly, we found an association between altered insulin signaling and ER-mitochondria interactions in human myotubes from obese subjects with or without T2D compared with healthy lean subjects. Collectively, our data reveal a new role of MAM integrity in insulin action of skeletal muscle and highlight MAM disruption as an essential subcellular alteration associated with muscle insulin resistance in mice and humans. Therefore, reduced ER mitochondria coupling could be a common alteration of several insulin-sensitive tissues playing a key role in altered glucose homeostasis in the context of obesity and T2D. PMID- 29326367 TI - Organic Anion Transporter 2 Mediates Hepatic Uptake of Tolbutamide, a CYP2C9 Probe Drug. AB - Tolbutamide is primarily metabolized by CYP2C9, and, thus, is frequently applied as a clinical probe substrate for CYP2C9 activity. However, there is a marked discrepancy in the in vitro-in vivo extrapolation of its metabolic clearance, implying a potential for additional clearance mechanisms. The goal of this study was to evaluate the role of hepatic uptake transport in the pharmacokinetics of tolbutamide and to identify the molecular mechanism thereof. Transport studies using singly transfected cells expressing six major hepatic uptake transporters showed that tolbutamide is a substrate to organic anion transporter 2 (OAT2) alone with transporter affinity [Michaelis-Menten constant (Km)] of 19.5 +/- 4.3 uM. Additionally, OAT2-specific transport was inhibited by ketoprofen (an OAT2 inhibitor) and 1 mM rifamycin SV (pan inhibitor), but not by cyclosporine and rifampicin (OAT polypeptides/Na+-taurocholate cotransporting polypeptide inhibitors). Uptake studies in primary human hepatocytes confirmed the predominant role of OAT2 in the active uptake with significant inhibition by rifamycin SV and ketoprofen, but not by the other inhibitors. Concentration dependent uptake was noted in human hepatocytes with active transport characterized by Km and Vmax values of 39.3 +/- 6.6 uM and 426 +/- 30 pmol/min per milligram protein, respectively. Bottom-up physiologically based pharmacokinetic modeling was employed to verify the proposed role of OAT2 mediated hepatic uptake. In contrast to the rapid equilibrium (CYP2C9-only) model, the permeability-limited (OAT2-CYP2C9 interplay) model better described the plasma concentration-time profiles of tolbutamide. Additionally, the latter well described tolbutamide pharmacokinetics in carriers of CYP2C9 genetic variants and quantitatively rationalized its known drug-drug interactions. Our results provide first-line evidence for the role of OAT2-mediated hepatic uptake in the pharmacokinetics of tolbutamide, and imply the need for additional clinical studies in this direction. PMID- 29326368 TI - Correction: Antenatal thoracoamniotic shunting in congenitalcystic adenomatoid malformation. PMID- 29326366 TI - Highly Proliferative alpha-Cell-Related Islet Endocrine Cells in Human Pancreata. AB - The proliferative response of non-beta islet endocrine cells in response to type 1 diabetes (T1D) remains undefined. We quantified islet endocrine cell proliferation in a large collection of nondiabetic control and T1D human pancreata across a wide range of ages. Surprisingly, islet endocrine cells with abundant proliferation were present in many adolescent and young-adult T1D pancreata. But the proliferative islet endocrine cells were also present in similar abundance within control samples. We queried the proliferating islet cells with antisera against various islet hormones. Although pancreatic polypeptide, somatostatin, and ghrelin cells did not exhibit frequent proliferation, glucagon-expressing alpha-cells were highly proliferative in many adolescent and young-adult samples. Notably, alpha-cells only comprised a fraction (~1/3) of the proliferative islet cells within those samples; most proliferative cells did not express islet hormones. The proliferative hormone negative cells uniformly contained immunoreactivity for ARX (indicating alpha cell fate) and cytoplasmic Sox9 (Sox9Cyt). These hormone-negative cells represented the majority of islet endocrine Ki67+ nuclei and were conserved from infancy through young adulthood. Our studies reveal a novel population of highly proliferative ARX+ Sox9Cyt hormone-negative cells and suggest the possibility of previously unrecognized islet development and/or lineage plasticity within adolescent and adult human pancreata. PMID- 29326369 TI - Successful treatment of postural orthostatic tachycardia and mast cell activation syndromes using naltrexone, immunoglobulin and antibiotic treatment. AB - A patient with severe postural orthostatic tachycardia syndrome (POTS) and mast cell activation syndrome (MCAS) received immunotherapy with low-dose naltrexone (LDN) and intravenous immunoglobulin (IVIg) and antibiotic therapy for small intestinal bacterial overgrowth (SIBO). A dramatic and sustained response was documented. The utility of IVIg in autoimmune neuromuscular diseases has been published, but clinical experience with POTS is relatively unknown and has not been reported in MCAS. As a short-acting mu-opioid antagonist, LDN paradoxically increases endorphins which then bind to regulatory T cells which regulate T lymphocyte and B-lymphocyte production and this reduces cytokine and antibody production. IVIg is emerging as a promising therapy for POTS. Diagnosis and treatment of SIBO in POTS is a new concept and appears to play an important role. PMID- 29326370 TI - A rare case of giant cell tumour (GCT) of bone with lung metastases. AB - A case of 16-year-old girl with giant cell tumour of right fibula is presented to us with bilateral lung metastases. In view of widespread bilateral lung metastatic lesions, the patient was given multimodality treatment. Chemotherapy followed by radiotherapy to the local site as well as lung bath has been given and has shown good response. PMID- 29326371 TI - Mycoplasma pneumoniae infection presenting as stroke and meningoencephalitis with aortic and subclavian aneurysms without pulmonary involvement. AB - A 39-year-old Philipino man presented with acute onset fever and headache. Neurological examination was normal except for neck stiffness. There was no history of chest pain, cough or breathlessness. Cerebrospinal fluid (CSF) showed a mild increase in protein with normal sugar and lymphocytic pleocytosis. CSF PCR for herpes simplex and varicella zoster virus was negative. He developed acute right haemiplegia a week after hospitalisation. MRI showed acute infarct in the left centrum semiovale. His angiogram showed aneurysm in the left subclavian artery and aortic arch. The mycoplasma antibody test came positive with very high titres, while rest of the workup was negative. He was treated with azithromycin and his symptoms improved completely.He was asymptomatic on follow-up after a month. His repeat immunoglobulin G mycoplasma antibody titre showed elevation. Mycoplasma infection is a treatable cause of meningoencephalitis and stroke secondary to vasculitis. Arterial aneurysms are known to occur with mycoplasma infection although rare. PMID- 29326372 TI - Caecal duplication cyst: a rare cause of neonatal intestinal obstruction. AB - We report a rare case of duplication cyst of the caecum responsible for an intestinal obstruction in a 5-day-old newborn. Preoperatively, we suspected the diagnosis of enteric duplication as ultrasonography demonstrated a cystic mass in the right iliac fossa, and laparotomy confirmed an obstructive caecal mass which was resected and an end-to-end anastomosis was performed. The neonate completely recovered with an uneventful follow-up. PMID- 29326373 TI - Hepatitis A infections in men who have sex with men using HIV PrEP in Paris. AB - The current hepatitis A outbreak in Europe is largely involving men having sex with multiple male partners. The objective of the present report was to warn teams dealing against the persistent risk of viral and bacterial sexually transmitted infection (STIs) in patients receiving HIV pre-exposure prophylaxis (PrEP). We have notified and investigated three cases of acute hepatitis A virus (HAV) infection in people receiving HIV PrEP in our clinic between December 2016 and March 2017. The patients were not epidemiologically related, had no recent travel history to HAV endemic areas, reported multiple STIs during this period and had not been vaccinated against HAV. They were all identified as genotype A, strain VRD_521_2016 virus.Large-scale vaccination against viral hepatitis is recommended in men having sex with men, especially in those using PrEP, as PrEP is used by people who have high-risk sexual behaviour. PMID- 29326374 TI - Beware of air. PMID- 29326375 TI - Group B streptococcus septic arthritis of the hip following spontaneous abortion. AB - Group B streptococcus (GBS) infection of the hip in otherwise healthy adults is a rare entity that is previously only reported following peripartum gynaecological procedure and instrumentation. We report a case of infection of the hip with GBS following spontaneous abortion. Delay in identification of infection as the cause of pain ultimately leads to irreversible joint destruction. This case report will heighten the awareness of the first contact providers as well as orthopaedic surgeons to be more vigilant for possible septic complications associated with gynaecological procedures/complications and subsequent painful joints. To our knowledge, this is the only case report showing association of GBS infection in hip associated with spontaneous abortion. PMID- 29326376 TI - Arm amputation secondary to squamous cell carcinoma: exotic expeditions leading to a delayed diagnosis? PMID- 29326377 TI - Lymphatic malformation with acquired Horner syndrome in an infant. AB - An infant presented with right upper eyelid ptosis and was subsequently diagnosed with acquired Horner syndrome. Further evaluation revealed a right-sided cervicothoracic lymphatic malformation. At 13 weeks of age, the child underwent percutaneous intracystic sclerotherapy with a mixture of sodium tetradecyl sulphate and ethanol. Twenty-one weeks after initial treatment, ophthalmic examination showed complete resolution of the blepharoptosis and pupillary miosis. Percutaneous sclerotherapy not only effectively treated the space occupying lymphatic malformation but also reversed the Horner syndrome that was presumably induced by neural tension (more likely) or compression. PMID- 29326378 TI - The Casper Stent System for carotid artery stenosis. AB - PURPOSE: To report the results of a retrospective analysis of prospectively collected data evaluating the safety and efficacy of a double layer stent engineered for carotid artery occlusive disease. METHODS: Between January 2014 and February 2017, 138 patients (25.4% women; median age 71 years) underwent Casper stent implantation for carotid artery stenosis. Eligibility criteria included stenosis >70% of vessel diameter (or >50% diameter with ulceration) in symptomatic patients or asymptomatic patients with >80% stenosis at the carotid bifurcation or in the proximal internal carotid artery. For all procedures, a distal embolic protection device was used. The primary endpoint was the rate of 90 day major adverse neurological events, defined as minor stroke, major stroke, or death by independent neurological assessment. RESULTS: Stent deployment was completed successfully in all cases without documented technical failure. There were no adverse neurological events or mortalities within 90 days. One thromboembolic occlusion of a small distal branch of the anterior cerebral artery occurred during the procedure and resolved with systemic recombinant tissue plasminogen activator administration. New ischemic lesions, all clinically silent, were seen in 6.5% of patients on post-procedure cerebral MRI. CONCLUSION: The Casper carotid stent demonstrated safety and efficacy in the treatment of carotid stenosis, with no technical failures and no adverse neurological events seen throughout the 90 day follow-up period. Its double layer structure seems to combine adequate plaque scaffolding with high vessel adaptability. PMID- 29326379 TI - Blood pressure levels post mechanical thrombectomy and outcomes in non recanalized large vessel occlusion patients. AB - OBJECTIVE: Permissive hypertension may benefit patients with non-recanalized large vessel occlusion (nrLVO) post mechanical thrombectomy (MT) by maintaining brain perfusion. Data evaluating the impact of post-MT blood pressure (BP) levels on outcomes in nrLVO patients are scarce. We investigated the association of the post-MT BP course with safety and efficacy outcomes in nrLVO. METHODS: Hourly systolic BP (SBP) and diastolic BP (DBP) values were prospectively recorded for 24 hours following MT in consecutive nrLVO patients. Maximum, minimum, and mean BP levels were documented. Three-month functional independence (FI) was defined as modified Rankin Scale (mRS) scores of 0-2. RESULTS: A total of 88 nrLVO patients were evaluated post MT. Patients with FI had lower maximum SBP (160+/-19 mmHg vs 179+/-23 mmHg; P=0.001) and higher minimum SBP levels (119+/-12 mmHg vs 108+/-25 mmHg; P=0.008). Maximum SBP (183+/-20 mmHg vs 169+/-23 mmHg; P=0.008) and DBP levels (105+/-20 mmHg vs 89+/-18 mmHg; P=0.001) were higher in patients who died at 3 months while minimum SBP values were lower (102+/-28 mmHg vs 115+/ 16 mmHg; P=0.007). On multivariable analyses, both maximum SBP (OR per 10 mmHg increase: 0.55, 95% CI 0.39 to 0.79; P=0.001) and minimum SBP (OR per 10 mmHg increase: 1.64, 95% CI 1.04 to 2.60; P=0.033) levels were independently associated with the odds of FI. Maximum DBP (OR per 10 mmHg increase: 1.61; 95% CI 1.10 to 2.36; P=0.014) and minimum SBP (OR per 10 mmHg increase: 0.65, 95% CI 0.47 to 0.90; P=0.009) values were independent predictors of 3-month mortality. CONCLUSIONS: Our study demonstrates that wide BP excursions from the mean during the first 24 hours post MT are associated with worse outcomes in patients with nrLVO. PMID- 29326380 TI - Neuroendovascular management of emergent large vessel occlusion: update on the technical aspects and standards of practice by the Standards and Guidelines Committee of the Society of NeuroInterventional Surgery. PMID- 29326382 TI - 'Quality is never an accident'. PMID- 29326381 TI - B1a B cells require autophagy for metabolic homeostasis and self-renewal. AB - Specific metabolic programs are activated by immune cells to fulfill their functional roles, which include adaptations to their microenvironment. B1 B cells are tissue-resident, innate-like B cells. They have many distinct properties, such as the capacity to self-renew and the ability to rapidly respond to a limited repertoire of epitopes. The metabolic pathways that support these functions are unknown. We show that B1 B cells are bioenergetically more active than B2 B cells, with higher rates of glycolysis and oxidative phosphorylation, and depend on glycolysis. They acquire exogenous fatty acids and store lipids in droplet form. Autophagy is differentially activated in B1a B cells, and deletion of the autophagy gene Atg7 leads to a selective loss of B1a B cells caused by a failure of self-renewal. Autophagy-deficient B1a B cells down-regulate critical metabolic genes and accumulate dysfunctional mitochondria. B1 B cells, therefore, have evolved a distinct metabolism adapted to their residence and specific functional properties. PMID- 29326383 TI - Gove sets out key areas for farming reform. PMID- 29326384 TI - Are animal research trials fit for purpose? PMID- 29326386 TI - Conservation success story under poisoning threat. AB - One of the world's longest and most successful continuous conservation projects to re-introduce the red kite to England and Scotland is being hampered by poisoning. PMID- 29326390 TI - The trend of raw meat-based diets: risks to people and animals. PMID- 29326391 TI - Zoonotic bacteria and parasites found in raw meat-based diets for cats and dogs. AB - Feeding raw meat-based diets (RMBDs) to companion animals has become increasingly popular. Since these diets may be contaminated with bacteria and parasites, they may pose a risk to both animal and human health. The purpose of this study was to test for the presence of zoonotic bacterial and parasitic pathogens in Dutch commercial RMBDs. We analysed 35 commercial frozen RMBDs from eight different brands. Escherichia coli serotype O157:H7 was isolated from eight products (23 per cent) and extended-spectrum beta-lactamases-producing E coli was found in 28 products (80 per cent). Listeria monocytogenes was present in 19 products (54 per cent), other Listeria species in 15 products (43 per cent) and Salmonella species in seven products (20 per cent). Concerning parasites, four products (11 per cent) contained Sarcocystis cruzi and another four (11 per cent) S tenella In two products (6 per cent) Toxoplasma gondii was found. The results of this study demonstrate the presence of potential zoonotic pathogens in frozen RMBDs that may be a possible source of bacterial infections in pet animals and if transmitted pose a risk for human beings. If non-frozen meat is fed, parasitic infections are also possible. Pet owners should therefore be informed about the risks associated with feeding their animals RMBDs. PMID- 29326393 TI - Current status of avian influenza in Europe and the UK. PMID- 29326394 TI - The value of good first-opinion practice. PMID- 29326395 TI - Ram health and welfare. PMID- 29326396 TI - It's so much harder to be your own vet. AB - This month a vet describes dealing with the loss of their own pet and how this impacts on their work. PMID- 29326397 TI - Roger Barry Clampitt. AB - A clinical pathologist whose outstanding contribution to the profession was to invent the first reliable clinical biochemistry analyser for use in practice. PMID- 29326400 TI - Treatment of cutaneous angiosarcoma of the scalp and face in Chinese patients: local experience at a regional hospital in Hong Kong. AB - INTRODUCTION: Angiosarcoma is a rare aggressive sarcoma that occurs mostly in the skin of the head and neck in the elderly population. The optimal management is dubious and most studies are from Caucasian populations. We aimed to examine the treatment and outcome of this disease in Chinese patients. METHODS: Data of patients with histopathologically verified cutaneous angiosarcoma of the head and neck during December 1997 to September 2016 were retrieved from our hospital cancer registry. The demographic data, clinicopathological information, modality of treatment, and outcomes were reviewed. RESULTS: During the study period, 17 Chinese patients were treated. Their median age was 81 years. The tumours were present in the scalp only (n=11), face only (n=4), or both scalp and face (n=2). Only two patients had distant metastases. The modalities of treatment were surgery (n=6), surgery and adjuvant radiotherapy (n=1), palliative radiotherapy (n=5), or palliative chemotherapy (n=3). The remaining two patients refused any treatment initially. Of the seven patients treated surgically, there were four local and two regional recurrences. The median time to relapse was 7.5 months. Overall, 16 patients had died; causes of death were disease-related in 12 whereas four other patients died of inter-current illnesses. One patient was still living with the disease. The median overall survival was 11.1 months and the longest overall survival was 42 months. CONCLUSION: The outcome of angiosarcoma in our series is poor. A high index of suspicion is mandatory for prompt diagnosis. Adjuvant radiotherapy is recommended following surgery. The benefit and role of systemic treatment in various combinations with surgery or radiotherapy require further study. PMID- 29326401 TI - Efficacy and tolerability of trastuzumab emtansine in advanced human epidermal growth factor receptor 2-positive breast cancer. AB - INTRODUCTION: The management of human epidermal growth factor receptor 2 (HER2) positive breast cancer has changed dramatically with the introduction and widespread use of HER2-targeted therapies. There is, however, relatively limited real-world information about the effectiveness and safety of trastuzumab emtansine (T-DM1) in Hong Kong Chinese patients. We assessed the efficacy and toxicity profiles among local patients with HER2-positive advanced breast cancer who had received T-DM1 therapy in the second-line setting and beyond. METHODS: This retrospective study involved five local centres that provide service for over 80% of the breast cancer population in Hong Kong. The study period was from December 2013 to December 2015. Patients were included if they had recurrent or metastatic histologically confirmed HER2+ breast cancer who had progressed after at least one line of anti-HER2 therapy including trastuzumab. Patients were excluded if they received T-DM1 as first-line treatment for recurrent or metastatic HER2+ breast cancer. Patient charts including biochemical and haematological profiles were reviewed for background information, T-DM1 response, and toxicity data. Adverse events were documented during chemotherapy and 28 days after the last dose of medication. RESULTS: Among 37 patients being included in this study, 28 (75.7%) had two or more lines of anti-HER2 agents and 26 (70.3%) had received two or more lines of palliative chemotherapy. Response assessment revealed that three (8.1%) patients had a complete response, eight (21.6%) a partial response, 11 (29.7%) a stable disease, and 12 (32.4%) a progressive disease; three patients could not be assessed. The median duration of response was 17.3 (95% confidence interval, 8.4-24.8) months. The clinical benefit rate (complete response + partial response + stable disease, >=12 weeks) was 37.8% (95% confidence interval, 22.2%-53.5%). The median progression-free survival was 6.0 (95% confidence interval, 3.3- 9.8) months and the median overall survival had not been reached by the data cut-off date. Grade 3 or 4 toxicities included thrombocytopaenia (13.5%), raised alanine transaminase (8.1%), anaemia (5.4%), and hypokalaemia (2.7%). No patient died as a result of toxicities. CONCLUSIONS: In patients with HER2-positive advanced breast cancer who have been heavily pretreated with anti-HER2 agents and cytotoxic chemotherapy, T-DM1 is well tolerated and provided a meaningful progression-free survival of 6 months and an overall survival that has not been reached. Further studies to identify appropriate patient subgroups are warranted. PMID- 29326402 TI - Ageing in individuals with intellectual disability: issues and concerns in Hong Kong. AB - INTRODUCTION: The increasing longevity of people with intellectual disability is testimony to the positive developments occurring in medical intervention. Nonetheless, early-onset age-related issues and concerns cause deterioration of their overall wellbeing. This paper aimed to explore the issues and concerns about individuals with intellectual disability as they age. METHODS: Articles that discussed people older than 30 years with an intellectual disability and those that identified ageing health issues and concerns were included. Only studies reported in English from 1996 to 2016 were included. We searched PubMed, Google Scholar, and Science Direct using the terms 'intellectual disability', 'ageing', 'cognitive impairment', 'health', and 'screening'. RESULTS: Apart from the early onset of age-related health problems, dementia is more likely to develop by the age of 40 years in individuals with intellectual disability. Geriatric services to people with intellectual disability, however, are only available for those aged 60 years and older. Cognitive instruments used for the general population are not suitable for people with intellectual disability because of floor effects. In Hong Kong, the Chinese version of the Dementia Screening Questionnaire for Individuals with Intellectual Disabilities is the only validated instrument for people with intellectual disability. The use of appropriate measurement tools to monitor the progression of age-related conditions in individuals with intellectual disability is of great value. CONCLUSIONS: Longitudinal assessment of cognition and function in people with intellectual disability is vital to enable early detection of significant deterioration. This allows for therapeutic intervention before substantial damage to the brain occurs such as dementia that hastens cognitive and functional decline. PMID- 29326404 TI - [Effects of Breastfeeding Interventions on Breastfeeding Rates at 1, 3 and 6 Months Postpartum: A Systematic Review and Meta-Analysis]. AB - PURPOSE: This study was a systematic review and meta-analysis designed to evaluate the effects of breastfeeding intervention on breastfeeding rates. METHODS: Based on the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA), a systematic search was conducted using eight core electronic databases and other sources including gray literature from January 9 to 19, 2017. Two reviewers independently select the studies and assessed methodological risk of bias of studies using the Cochrane criteria. The topics of breastfeeding interventions were analyzed using descriptive analysis and the effects of intervention were meta-analyzed using the Review Manager 5.2 software. RESULTS: A total of 16 studies were included in the review and 15 were included for meta-analysis. The most frequently used intervention topics were the importance of good latch-on and frequency of feeding and determining adequate intake followed. The pooled total effect of breastfeeding intervention was 1.08 (95% CI 1.03~1.13). In the subgroup analysis, neither pre-nor post-childbirth intervention was effective on the breastfeeding rates at 1, 3, and 6 months, and neither group nor individual interventions had an effect. Only the 1 month breastfeeding rate was found to be affected by the individual intervention with the persistent strategies 1.21 (95% CI 1.04~1.40). CONCLUSION: Effective breastfeeding interventions are needed to help the mother to start breastfeeding after childbirth and continue for at least six months. It should be programmed such that individuals can acquire information and specific breastfeeding skills. After returning home, there should be continuous support strategies for breastfeeding as well as managing various difficulties related to childcare. PMID- 29326403 TI - Resveratrol, an Nrf2 activator, ameliorates aging-related progressive renal injury. AB - BACKGROUND: Two important issues in the aging kidney are mitochondrial dysfunction and oxidative stress. An Nrf2 activator, resveratrol, is known to have various effects. Resveratrol may prevent inflammation and oxidative stress by activating Nrf2 and SIRT1 signaling. We examined whether resveratrol could potentially ameliorate the cellular condition, such as renal injury due to cellular oxidative stress and mitochondrial dysfunction caused by aging. METHODS: Male 18-month-old C57BL/6 mice were used. Resveratrol (40 mg/kg) was administered to aged mice for 6 months. We compared histological changes, oxidative stress, and aging-related protein expression in the kidney between the resveratrol treated group (RSV) and the control group (cont). We performed experiments using small-interfering RNAs (siRNAs) for Nrf2 and SIRT1 in cultured HK2 cells. RESULTS: Resveratrol improved renal function, proteinuria, histological changes and inflammation in aging mice. Also, expression of Nrf2-HO-1-NOQ-1 signaling and SIRT1-AMPK-PGC-1alpha signaling was increased in the RSV group. Transfection with Nrf2 and SIRT1 siRNA prevented resveratrol-induced anti-oxidative effect in HK2 cells in media treated with H2O2. CONCLUSIONS: Activation of the Nrf2 and SIRT1 signaling pathways ameliorated oxidative stress and mitochondrial dysfunction. Pharmacological targeting of Nrf2 signaling molecules may reduce the pathologic changes of aging in the kidney. PMID- 29326405 TI - [The Relationships among Chemotherapy-Induced Nausea and Vomiting (CINV), Non Pharmacological Coping Methods, and Nutritional Status in Patients with Gynecologic Cancer]. AB - PURPOSE: Chemotherapy-induced nausea and vomiting (CINV) can cause severe malnutrition. However, relationships between CINV levels, non-pharmacological coping methods, and nutritional status of female cancer patients have rarely been investigated. Therefore, this study aimed to analyze their relationships in gynecologic cancer patients. METHODS: Participants receiving a highly and moderately emetogenic chemotherapy were recruited. The level of CINV was assessed using a numeric rating scale. Coping methods were determined using multiple choice self-report questionnaires and categorized into seven types for statistical analysis. Nutritional status was evaluated using biochemical and anthropometric parameters. RESULTS: Among all the 485 patients, 200 eligible inpatients were included. Despite the administration of prophylactic antiemetics, 157 patients (78.5%) still experienced CINV, and several used nonmedically recommended coping methods, such as just enduring the symptom or rejecting food intake. A total of 181 patients (90.5%) had nutritional disorders. Although the level of CINV was indirectly related to the occurrence of nutritional disorders, patients who rejected food (beta=1.57, p=.023) and did not use physical measures (beta= -1.23, p=.041) as coping methods were under the high risk of nutritional disorders. CONCLUSION: Korean gynecologic cancer patients had high levels of CINV and were at high risk of nutritional disorders, which may be related to the use of nonscientific coping methods, possibly due to cultural backgrounds and lack of proper nutritional program. Therefore, developing a culturally appropriate educational program for the cancer patients with CINV is urgently needed. PMID- 29326406 TI - [Effect of Visiting and a Smartphone Application Based Infection Prevention Education Program for Child Care Teachers: A Non-Randomized Controlled Trial]. AB - PURPOSE: This study was performed to develop an infection prevention education program for child care teachers and to verify its effects. METHODS: The study was conducted using a nonequivalent control group with a pretest-posttest design. Four private daycare centers (2 centers per city) that were alike in terms of the number of children by age, number of child care teachers, and child care environment were chosen. Participants were assigned to the experimental group (n=20) or control group (n=20). As a part of the program, visiting education (90 min) was provided in the 1st week, and smartphone application education (10 min) was provided thrice a week, in the 2nd and 3rd weeks. RESULTS: Child care teachers' self-efficacy for infection prevention revealed a significant interaction effect between the group and time of measurement (F=21.62, p<.001). In terms of infection prevention behavior, a significant difference was observed between the experimental and control groups (z=-5.36, p<.001). CONCLUSION: The program implemented in this study was effective in improving the infection prevention self-efficacy and infection prevention behavior of child care teachers. Thus, this program may be effective in enhancing their infection control. PMID- 29326407 TI - [The Effects of Smart Program for Patients Who Underwent Percutaneous Coronary Intervention (SP-PCI) on Disease-Related Knowledge, Health Behavior, and Quality of Life: A Non-Randomized Controlled Trial]. AB - PURPOSE: To identify the effects of a smart program for the patients who underwent percutaneous coronary intervention (SP-PCI) on coronary disease-related knowledge, health behaviors, and quality of life. METHODS: A nonequivalent control group with a non-synchronized design was utilized and 48 participants (experimental=22, control=26) were recruited from a university hospital in Gyeongsang area from May to December, 2016. The 12-week SP-PCI consisted of self study of health information using smart phone applications (1/week), walking exercise (>5/week) using smart band, feedback using Kakao talk (2/week), and telephone counseling (1/week). Patients in the control group received usual care from their primary health care providers and a brief health education with basic self-management brochure after the PCI. Data were analyzed using the SPSS 21.0 program through descriptive statistics, chi2 test, and t-test. RESULTS: After the 12-week SP-PCI, the experimental group showed higher levels of coronary disease related knowledge (t=2.43, p=.019), heart-related health behaviors (t=5.96, p<.001), regular exercise (Z=-4.47, p<.001), and quality of life-MCS (t=3.04, p=.004) and showed lower levels of stress (Z=-3.53, p<.001) and sodium intake (t= 4.43, p<.001) than those in the control group. There were no significant group differences in medication adherence and food intake in total energy, lipids, and cholesterol. CONCLUSION: The suggested SP-PCI provided easy access and cost effective intervention for patients after PCI and improved their knowledge of the disease, performance of health behaviors, and quality of life. Further study with a wider population is needed to evaluate the effects of SP-PCI on disease recurrence and quality of life for patients after PCI. PMID- 29326408 TI - [Association between Emotional Labor, Emotional Dissonance, Burnout and Turnover Intention in Clinical Nurses: A Multiple-Group Path Analysis across Job Satisfaction]. AB - PURPOSE: This study was conducted to investigate the influence of emotional labor, emotional dissonance, and burnout on nurse's turnover intention and examine the effect of job satisfaction on the relationships among emotional labor, emotional dissonance, burnout, and turnover intention. METHODS: The sample consisted of 350 nurses recruited from 6 general hospitals in 2 cities in Korea. A multiple-group analysis was utilized. Data were analyzed using SPSS statistics 23 and AMOS 20. RESULTS: In the path analysis, turnover intention was directly related to burnout in clinical nurses who had a high job satisfaction (beta=.24, p=.003), while it was indirectly related to emotional dissonance (beta=.13, p=.002). In the multiple-group path analysis, turnover intention was directly related to emotional dissonance (beta=.18, p=.033) and burnout (beta=.26, p=.002) for nurses with low job satisfaction. CONCLUSION: These results indicate that manuals and guidelines to alleviate the negative effects of emotional labor, emotional dissonance, and burnout, and to increase job satisfaction are strongly required to reduce turnover intention in nurses at the organizational level as well as at the individual level. PMID- 29326409 TI - [Life Experiences of Uninfected Women Living with HIV-Infected Husbands: A Phenomenological Study]. AB - PURPOSE: This study aimed to understand the meaning and essence of the life experiences of uninfected women living with HIV-infected husbands. METHODS: This qualitative study adopted van Manen's hermeneutic phenomenological method. Study participants were 8 females whose husband had been diagnosed with HIV for longer than 6 months, who had known about their husband's infection for more than 6 months, who were in a legal or common-law marriage and were living with their husbands at the time of interview for this study, and whose HIV antibody test results were negative. Data were collected from in-depth individual interviews with the participants from May to August 2016, and from related idiomatic expressions, literature, artwork, and phenomenological references. RESULTS: The following essential themes were identified regarding the life experiences of uninfected women living with HIV-infected husbands: 'experiencing an abrupt change that came out of the blue and caused confusion', 'accepting one's fate and making desperate efforts to maintain one's family', 'dealing with a heavy burden alone', 'experiencing the harsh reality and fearful future', and 'finding consolation in the ordeal'. CONCLUSION: This study provided a holistic and in depth understanding of the meaning and essence of the life experiences of uninfected women living with HIV-infected husbands. Thus, this study recognizes these unnoticed women as new nursing subjects. Further, the present findings can be used as important basic data for the development of nursing interventions and national policy guidelines for uninfected women living with HIV-infected husbands. PMID- 29326410 TI - [Factors Predicting the Interface Pressure Related to Pressure Injury in Intensive Care Unit Patients]. AB - PURPOSE: Interface pressure is a factor that contributes to the occurrence of pressure injuries. This study aimed to investigate interface pressure at common sites of pressure injury (occipital, gluteal and peritrochanteric areas), to explore the relationships among risk factors, skin condition and interface pressure, and to identify risk factors influencing interface pressure. METHODS: A total of 100 patients admitted to the intensive care unit were enrolled at a tertiary teaching hospital in Korea. Interface pressure was recorded by a scanning aid device (PalmQ). Patient data regarding age, pulmonary disease, Braden Scale score, body mass index, serum albumin, hemoglobin, mean blood pressure, body temperature, and oxygen saturation were included as risk factors. Data collected from July to September 2016 were analyzed using binary logistic regression. RESULTS: The mean interface pressure of the occipital, gluteal, and right and left peritrochanteric areas were 37.96 (+/-14.90), 41.15 (+/-16.04), 53.44 (+/-24.67), and 54.33 (+/-22.80) mmHg, respectively. Predictive factors for pressure injuries in the occipital area were age >=70 years (OR 3.45, 95% confidence interval [CI]: 1.19~9.98), serum albumin deficit (OR 2.88, 95% CI: 1.00~8.26) and body temperature >=36.5C (OR 3.12, 95% CI: 1.17~8.17); age >=70 years (OR 2.81, 95% CI: 1.10~7.15) in the right peritrochanteric area; and body temperature >=36.5C (OR 2.86, 95% CI: 1.17~6.98) in the left peritrochanteric area. CONCLUSION: Our findings suggest that old age, hypoalbuminemia, and high body temperature may be contributory factors to increasing interface pressure; therefore, careful assessment and nursing care of these patients are needed to prevent pressure injury. Further studies are needed to establish cutoff values of interface pressure for patients with pressure ulcers. PMID- 29326411 TI - [Semantic Network Analysis of Online News and Social Media Text Related to Comprehensive Nursing Care Service]. AB - PURPOSE: As comprehensive nursing care service has gradually expanded, it has become necessary to explore the various opinions about it. The purpose of this study is to explore the large amount of text data regarding comprehensive nursing care service extracted from online news and social media by applying a semantic network analysis. METHODS: The web pages of the Korean Nurses Association (KNA) News, major daily newspapers, and Twitter were crawled by searching the keyword 'comprehensive nursing care service' using Python. A morphological analysis was performed using KoNLPy. Nodes on a 'comprehensive nursing care service' cluster were selected, and frequency, edge weight, and degree centrality were calculated and visualized with Gephi for the semantic network. RESULTS: A total of 536 news pages and 464 tweets were analyzed. In the KNA News and major daily newspapers, 'nursing workforce' and 'nursing service' were highly rated in frequency, edge weight, and degree centrality. On Twitter, the most frequent nodes were 'National Health Insurance Service' and 'comprehensive nursing care service hospital.' The nodes with the highest edge weight were 'national health insurance,' 'wards without caregiver presence,' and 'caregiving costs.' 'National Health Insurance Service' was highest in degree centrality. CONCLUSION: This study provides an example of how to use atypical big data for a nursing issue through semantic network analysis to explore diverse perspectives surrounding the nursing community through various media sources. Applying semantic network analysis to online big data to gather information regarding various nursing issues would help to explore opinions for formulating and implementing nursing policies. PMID- 29326412 TI - [Identifying Latent Classes of Risk Factors for Coronary Artery Disease]. AB - PURPOSE: This study aimed to identify latent classes based on major modifiable risk factors for coronary artery disease. METHODS: This was a secondary analysis using data from the electronic medical records of 2,022 patients, who were newly diagnosed with coronary artery disease at a university medical center, from January 2010 to December 2015. Data were analyzed using SPSS version 20.0 for descriptive analysis and Mplus version 7.4 for latent class analysis. RESULTS: Four latent classes of risk factors for coronary artery disease were identified in the final model: 'smoking-drinking', 'high-risk for dyslipidemia', 'high-risk for metabolic syndrome', and 'high-risk for diabetes and malnutrition'. The likelihood of these latent classes varied significantly based on socio demographic characteristics, including age, gender, educational level, and occupation. CONCLUSION: The results showed significant heterogeneity in the pattern of risk factors for coronary artery disease. These findings provide helpful data to develop intervention strategies for the effective prevention of coronary artery disease. Specific characteristics depending on the subpopulation should be considered during the development of interventions. PMID- 29326413 TI - [Impact of Increased Supply of Newly Licensed Nurses on Hospital Nurse Staffing and Policy Implications]. AB - PURPOSE: This study aimed to analyze the impact of increasing the supply of newly licensed nurses on improving the hospital nurse staffing grades for the period of 2009~2014. METHODS: Using public administrative data, we analyzed the effect of newly licensed nurses on staffing in 1,594 hospitals using Generalized Estimating Equation (GEE) ordered logistic regression, and of supply variation on improving staffing grades in 1,042 hospitals using GEE logistic regression. RESULTS: An increase of one newly licensed nurse per 100 beds in general units had significantly lower odds of improving staffing grades (grades 6~0 vs. 7) (odds ratio=0.95, p=.005). The supply of newly licensed nurses increased by 32% from 2009 to 2014, and proportion of hospitals whose staffing grade had improved, not changed, and worsened was 19.1%, 70.1%, and 10.8% respectively. Compared to 2009, the supply variation of newly licensed nurses in 2014 was not significantly related to the increased odds of improving staffing grades in the region (OR=1.02, p=.870). CONCLUSION: To achieve a balance in the regional supply and demand for hospital nurses, compliance with nurse staffing legislation and revisions in the nursing fee differentiation policy are needed. Rather than relying on increasing nurse supply, retention policies for new graduate nurses are required to build and sustain competent nurse workforce in the future. PMID- 29326414 TI - [Effect of Debriefing Based on the Clinical Judgment Model on Simulation Based Learning Outcomes of End-of-Life Care for Nursing Students: A Non-Randomized Controlled Trial]. AB - PURPOSE: This study was conducted to identify effects of debriefing based on the clinical judgment model for nursing students on their knowledge, skill performance, clinical judgment, self-confidence and learner satisfaction during simulation based end-of-life care (ELC) education. METHODS: Simulation based ELC education was developed in six steps as follows: selection of learning subjects and objects, development of learning tools, a trial run of simulation-based education, students' skill training, and evaluators' training. Forty-eight senior nursing students (25 in the experimental group and 23 in the control group) participated in the simulation-based ELC education using a high-fidelity simulator. Debriefing based on the clinical judgment was compared with the usual debriefing. RESULTS: ANCOVA showed that there were differences in knowledge (F=4.81, p=.034), skill performance (F=68.33, p<.001), clinical judgment (F=18.33, p<.001) and self-confidence (F=4.85, p=.033), but no difference in satisfaction (t=-0.38, p=.704) between the experimental and control groups. CONCLUSION: This study found that debriefing based on the clinical judgement model is effective for supporting nursing students for reflecting on clinical judgment and improving their diverse competencies in complex clinical settings such as ELC. PMID- 29326415 TI - Factors Affecting Early School-Age Children's Subjective Happiness: Using the Actor-Partner Interdependence Model of Parental Variables. AB - PURPOSE: The present study is a descriptive cross-sectional study of cause-and effect relationship, which used the 7(th) year data of the Panel Study on Korean Children, to investigate the effects of parenting stress, depression, and family interactions of the parents of early school-age children on children's subjective happiness. METHODS: The present study included data of 1419 pairs of parents who participated in the mother and father survey of the Panel Study on Korean Children. The effects of parenting stress, depression, and parental family interactions on children's subjective happiness were analyzed as actor and partner effects using path analysis. RESULTS: Parenting stress had an actor effect on depression; maternal parenting stress (beta=-.21, p<.001) and depression (beta=-.30, p<.001) had an actor effect on maternal family interaction; and paternal parenting stress (beta=-.18, p<.001) and depression (beta=-.17, p<.001) had a partner effect on maternal family interaction. Paternal parenting stress was found to have an actor effect on paternal family interaction (beta=-.30, p<.001), and parental depression was found to have actor effect (beta=-.23, p<.001) and maternal depression had a partner effect on paternal family interactions (beta=-.22, p<.001). Children's subjective happiness was found to have a statistically significant relationship with maternal family interaction (beta=.40, p<.001). CONCLUSION: The significance of the study is in its provision of basic data for adjusting parents' family interactions that are closely related to the growth and development of children by confirming the effect of parents' parenting stress, depression, and family interaction on children's subjective happiness. PMID- 29326417 TI - Factors Causing Disagreement between Measured and Calculated Low Density Lipoprotein-Cholesterol (LDL-C) in Clinical Laboratory Services. AB - BACKGROUND Since measured low density lipoprotein-cholesterol (LDL-C) has been available in clinical laboratories, there have been concern about the disagreement between measured and calculated LDL-C and the factors causing their disagreement. MATERIAL AND METHODS Serum lipid concentrations were collected from 1,339 medical records of patients admitted to hospital between 2013 and 2015. They were grouped by their total cholesterol (TC), triglycerides (TG), and high density lipoprotein-cholesterol (HDL-C) concentrations and the agreement between measured and calculated LDL-C was statistically analyzed. RESULTS A strong relationship was found between measured and calculated LDL-C. Significantly disagreements between measured and calculated LDL-C were found in all groups in 2013 and 2014 when lipids were analyzed by Cobas C501. Disagreements found in groups of low TG and low HDL-C concentrations in 2015 were when lipids were analyzed by Abbott Architect ci8200. In groups of calculated LDL-C <1.81 mmol/L, around 80% had the measured LDL-C >1.81 mmol/L. Among various atherogenic indices, non-HDL-C showed the strongest relationship with LDL-C, while TC to HDL C ratio showed the strongest agreement with the LDL-C. CONCLUSIONS The disagreement between measured and calculated LDL-C in a clinical laboratory seemed to depend on the analytical system used, and was probably associated with individual laboratory variations. PMID- 29326416 TI - Strategies to Restore Adenosine Triphosphate (ATP) Level After More than 20 Hours of Cold Ischemia Time in Human Marginal Kidney Grafts. AB - BACKGROUND The persisting organ shortage in the field of transplantation recommends the use of marginal kidneys which poorly tolerate ischemic damage. Adenosine triphosphate (ATP) depletion during cold ischemia time (CIT) is considered crucial for graft function. We tested different strategies of kidney perfusion before transplantation in the attempt to improve the technique. MATERIAL AND METHODS Twenty human discarded kidneys from donors after brain death and with at least 20 hours of CIT were randomized to the following experimental groups (treatment time three-hours at 4 degrees C): a) static cold storage (CS); b) static cold hyperbaric oxygenation (Hyp); c) hypothermic perfusion (PE); d) hypothermic perfusion in hyperbaric oxygenation (PE-Hyp); and e) hypothermic oxygenated perfusion (PE-O2). RESULTS Histological results showed that perfusion with or without oxygen did not produce any endothelial damage. A depletion of ATP content following the preservation procedure was observed in CS, PE, and Hyp, while PE-Hyp and PE-O2 were associated with a net increase of ATP content with respect to baseline level. In addition, PE-Hyp was associated with a significant downregulation of endothelial isoform of nitric oxide synthase (eNOS) gene expression and of hypoxia inducible factor-1alpha (HIF-1alpha). CONCLUSIONS Hyperbaric or normobaric oxygenation with perfusion improves organ metabolic preservation compared to other methods. This approach may prevent the onset of delayed graft function, but clinical trials are needed to confirm this. PMID- 29326418 TI - A Case of Right-Sided Direct Carotid Cavernous Fistula: A Diagnostic Challenge. AB - BACKGROUND Carotid cavernous fistulas (CCFs) are rare potentially sight threatening abnormal connections between carotid artery and cavernous sinus. CASE REPORT We report a case of CCF in an 83-year-old female, who presented with swollen and painful right eye. The patient was initially treated with empiric antibiotics for suspected peri-orbital cellulitis, as noted clinically and in computed tomography (CT) orbits. However, lack of clinical improvement, physical finding of orbital bruit/thrill, and enlarged superior ophthalmic vein in magnetic resonance (MR) orbits suggest alternate diagnoses. Eventually, CT angiogram (CTA) and carotid-arteriography confirmed the diagnosis of right-sided direct CCF, which was subsequently treated with endovascular embolization. Not only does this case highlight the importance of CCF, which could be a differential diagnosis of swollen red eye, it also addresses the vital importance of physical examination in modern medicine despite the seemingly promising technologies. CONCLUSIONS Internists should have a low threshold of clinical suspicion for CCF in a patient with swollen red eyes in order to provide timely and proper management. PMID- 29326420 TI - Fasting and glucose induced thermogenesis in response to three ambient temperatures: a randomized crossover trial in the metabolic syndrome. AB - BACKGROUND/OBJECTIVES: Cold exposure increases thermogenesis and could improve insulin sensitivity. We hypothesized a blunted response in the metabolic syndrome (MetS). SUBJECTS/METHODS: Twenty older adults 59 +/- 10.4 years (with MetS, MetS+, n = 9; without MetS, MetS-, n = 11) completed a randomized crossover design of 3.5 h exposures to 20, 25 and 27 degrees C on three visits. After an hour's rest at the desired temperature, resting metabolic rate (RMR), respiratory quotient (RQ), forearm to fingertip gradients (FFG), and in the ear temperature (IET) were measured over 30 min. An oral glucose tolerance test followed, and serial measurements were continued for 2 h. Venous blood was sampled for clinical chemistry, irisin, and fibroblast growth factor 21(FGF21). A mixed model ANCOVA adjusted data for age, gender, fat mass, fat-free mass and seasonality. RESULTS: There was a significant MetS*temperature interaction where adjusted RMR was significantly higher in MetS+ compared to MetS- by 12% at 20 degrees C and by 6% at 25 degrees C, but similar at 27 degrees C. FFG increased and IET decreased with decreasing temperature to the same extent in both groups. Fasting irisin and FGF21 did not vary with temperature but the former was significantly higher in MetS-. Adjusted postprandial RQ and insulin to glucose ratios were significantly higher at 20 degrees C relative to 25 degrees C. Partial correlation analysis of differences between 27 and 20 degrees C indicated significant positive relationships between fasting as well as postprandial RQ and the respective changes in irisin and FGF21. CONCLUSIONS: There could be an upward shift of the TNZ in MetS+, but this needs reevaluation. PMID- 29326419 TI - Evaluation of Multislice Spiral Computed Tomography Perfusion Imaging for the Efficacy of Preoperative Concurrent Chemoradiotherapy in Middle-aged and Elderly Patients with Locally Advanced Gastric Cancer. AB - BACKGROUND This study aimed to investigate the predictive value of multislice spiral computed tomography (MSCT) perfusion imaging for the efficacy of preoperative concurrent chemoradiotherapy (CCRT) in middle-aged and elderly patients with locally advanced gastric cancer (LAGC). MATERIAL AND METHODS One hundred twenty-six middle-aged and elderly patients with LAGC were selected. MSCT was performed before and after CCRT to obtain perfusion parameters: blood flow volume (BF), blood volume (BV), mean transit time (MTT), and permeability surface (PS). After CCRT, according to Response Evaluation Criteria in Solid Tumors (RECIST), patients were categorized into the effective group and the ineffective group. Overall survival rate was measured by Kaplan-Meier analysis. ROC curve was applied to evaluate the predictive value of perfusion parameters. Multiple logistic regression analysis was applied to analyze the association of perfusion parameters with the efficacy of preoperative treatment. RESULTS Tumor volume reduction rates of the effective and ineffective groups were 59.23+/-8.53% and 10.41+/-3.36%. BF, BV, and PS values in the effective group were significantly decreased after CCRT. ROC curves indicated high sensitivities and specificities of BF value (79.00%, 73.44%), BV value (71.00%, 75.00%), and PS value (82.30%, 90.63%). The incidence rate of weakness and anorexia in the effective group was much higher than that in the ineffective group. Patients with low BF, BV, and PS values (less their optimal cutoff values) had longer survival times than these with high BF, BV, and PS values. CONCLUSIONS MSCT might have predictive values for the efficacy of preoperative CCRT in the treatment of LAGC. PMID- 29326421 TI - Vitamin D3-fortified milk did not affect glycemic control, lipid profile, and anthropometric measures in patients with type 2 diabetes, a triple-blind randomized clinical trial. AB - BACKGROUND/OBJECTIVES: The effect of vitamin D on glycemic status of diabetes patients is controversial. The objective was to assess the effect of vitamin D3 fortified milk on cardiometabolic markers of patients with type 2 diabetes. SUBJECTS/METHODS: In this randomized triple-blind, placebo-controlled trial, 102 patients (34 males and 68 females) aged 31-74 years with type 2 diabetes were randomized to receive either 250 ml unfortified or 250 ml 1000 IU vitamin D3 fortified milk daily for 9 weeks. Anthropometric characteristics, blood pressure, and serum levels of glucose, insulin, and lipids were determined at baseline and after 9 weeks. RESULTS: Serum 25-hydroxy vitamin D concentrations improved in the fortified milk group compared to the control group (+14 +/- 20 vs. +4 +/- 17 ng/ml; P = 0.001). Both groups showed significant increases in serum calcium (P < 0.01) and decreases in total cholesterol, waist and hip circumference, and systolic and diastolic blood pressure (P < 0.001). Also, there was a significant reduction in body mass index of fortified milk group (P < 0.001). None of these changes were statistically significant between the two groups. Glycosylated hemoglobin (HbA1c) significantly decreased in both groups with a more remarkable reduction in the plain milk consumers, making a significant between-group difference (7.5% compared to 3.1%; P = 0.01). CONCLUSIONS: Overall, daily consumption of one cup of milk containing 1000 IU vitamin D3 for 9 weeks substantially improved vitamin D deficiency in patients with type 2 diabetes but it did not affect cardiometabolic parameters over that of plain milk. PMID- 29326422 TI - WFPHA: World Federation of Public Health Associations. PMID- 29326423 TI - Peripheral neuropathies: Subcutaneous immunoglobulin - the future of CIDP treatment? PMID- 29326425 TI - Unified understanding of MS course is required for drug development. PMID- 29326424 TI - Assessing treatment outcomes in multiple sclerosis trials and in the clinical setting. AB - Increasing numbers of drugs are being developed for the treatment of multiple sclerosis (MS). Measurement of relevant outcomes is key for assessing the efficacy of new drugs in clinical trials and for monitoring responses to disease modifying drugs in individual patients. Most outcomes used in trial and clinical settings reflect either clinical or neuroimaging aspects of MS (such as relapse and accrual of disability or the presence of visible inflammation and brain tissue loss, respectively). However, most measures employed in clinical trials to assess treatment effects are not used in routine practice. In clinical trials, the appropriate choice of outcome measures is crucial because the results determine whether a drug is considered effective and therefore worthy of further development; in the clinic, outcome measures can guide treatment decisions, such as choosing a first-line disease-modifying drug or escalating to second-line treatment. This Review discusses clinical, neuroimaging and composite outcome measures for MS, including patient-reported outcome measures, used in both trials and the clinical setting. Its aim is to help clinicians and researchers navigate through the multiple options encountered when choosing an outcome measure. Barriers and limitations that need to be overcome to translate trial outcome measures into the clinical setting are also discussed. PMID- 29326427 TI - Severe steatosis induces portal hypertension by systemic arterial hyporeactivity and hepatic vasoconstrictor hyperreactivity in rats. AB - Non-alcoholic fatty liver disease (NAFLD) has become the most prevalent chronic liver disease. The presence of portal hypertension has been demonstrated in NAFLD prior to development of inflammation or fibrosis, and is a result of extrahepatic and intrahepatic factors, principally driven by vascular dysfunction. An increased intrahepatic vascular resistance potentially contributes to progression of NAFLD via intralobular hypoxia. However, the exact mechanisms underlying vascular dysfunction in NAFLD remain unknown. This study investigates systemic hemodynamics and both aortic and intrahepatic vascular reactivity in a rat model of severe steatosis. Wistar rats were fed a methionine-choline-deficient diet, inducing steatosis, or control diet for 4 weeks. In vivo hemodynamic measurements, aortic contractility studies, and in situ liver perfusion experiments were performed. The mean arterial blood pressure was lower and portal blood pressure was higher in steatosis compared to controls. The maximal contraction force in aortic rings from steatotic rats was markedly reduced compared to controls. While blockade of nitric oxide (NO) production did not reveal any differences, cyclooxygenase (COX) blockade reduced aortic reactivity in both controls and steatosis, whereas effects were more pronounced in controls. Effects could be attributed to COX-2 iso-enzyme activity. In in situ liver perfusion experiments, exogenous NO donation or endogenous NO stimulation reduced the transhepatic pressure gradient (THPG), whereas NO synthase blockade increased the THPG only in steatosis, but not in controls. Alpha-1-adrenergic stimulation and endothelin-1 induced a significantly more pronounced increase in THPG in steatosis compared to controls. Our results demonstrate that severe steatosis, without inflammation or fibrosis, induces portal hypertension and signs of a hyperdynamic circulation, accompanied by extrahepatic arterial hyporeactivity and intrahepatic vascular hyperreactivity. The arterial hyporeactivity seems to be NO independent, but appears to be mediated by specific COX-2-related mechanisms. Besides, the increased intrahepatic vascular resistance in steatosis appears not to be NO-related but rather to vasoconstrictor hyperreactivity. PMID- 29326428 TI - Human germline gene editing: Recommendations of ESHG and ESHRE. AB - Technological developments in gene editing raise high expectations for clinical applications, first of all for somatic gene editing but in theory also for germline gene editing (GLGE). GLGE is currently not allowed in many countries. This makes clinical applications in these countries impossible now, even if GLGE would become safe and effective. What were the arguments behind this legislation, and are they still convincing? If a technique can help to avoid serious genetic disorders, in a safe and effective way, would this be a reason to reconsider earlier standpoints? The European Society of Human Reproduction and Embryology (ESHRE) and the European Society of Human Genetics (ESHG) together developed a Background document and Recommendations to inform and stimulate ongoing societal debates. After consulting its membership and experts, this final version of the Recommendations was endorsed by the Executive Committee and the Board of the respective Societies in May 2017. Taking account of ethical arguments, we argue that both basic and pre-clinical research regarding GLGE can be justified, with conditions. Furthermore, while clinical GLGE would be totally premature, it might become a responsible intervention in the future, but only after adequate pre clinical research. Safety of the child and future generations is a major concern. Future discussions must also address priorities among reproductive and potential non-reproductive alternatives, such as PGD and somatic editing, if that would be safe and successful. The prohibition of human germline modification, however, needs renewed discussion among relevant stakeholders, including the general public and legislators. PMID- 29326426 TI - mRNA vaccines - a new era in vaccinology. AB - mRNA vaccines represent a promising alternative to conventional vaccine approaches because of their high potency, capacity for rapid development and potential for low-cost manufacture and safe administration. However, their application has until recently been restricted by the instability and inefficient in vivo delivery of mRNA. Recent technological advances have now largely overcome these issues, and multiple mRNA vaccine platforms against infectious diseases and several types of cancer have demonstrated encouraging results in both animal models and humans. This Review provides a detailed overview of mRNA vaccines and considers future directions and challenges in advancing this promising vaccine platform to widespread therapeutic use. PMID- 29326430 TI - EMT in cancer. AB - Similar to embryonic development, changes in cell phenotypes defined as an epithelial to mesenchymal transition (EMT) have been shown to play a role in the tumorigenic process. Although the first description of EMT in cancer was in cell cultures, evidence for its role in vivo is now widely reported but also actively debated. Moreover, current research has exemplified just how complex this phenomenon is in cancer, leaving many exciting, open questions for researchers to answer in the future. With these points in mind, we asked four scientists for their opinions on the role of EMT in cancer and the challenges faced by scientists working in this fast-moving field. PMID- 29326429 TI - Responsible innovation in human germline gene editing: Background document to the recommendations of ESHG and ESHRE. AB - Technological developments in gene editing raise high expectations for clinical applications, including editing of the germline. The European Society of Human Reproduction and Embryology (ESHRE) and the European Society of Human Genetics (ESHG) together developed a Background document and Recommendations to inform and stimulate ongoing societal debates. This document provides the background to the Recommendations. Germline gene editing is currently not allowed in many countries. This makes clinical applications in these countries impossible now, even if germline gene editing would become safe and effective. What were the arguments behind this legislation, and are they still convincing? If a technique could help to avoid serious genetic disorders, in a safe and effective way, would this be a reason to reconsider earlier standpoints? This Background document summarizes the scientific developments and expectations regarding germline gene editing, legal regulations at the European level, and ethics for three different settings (basic research, preclinical research and clinical applications). In ethical terms, we argue that the deontological objections (e.g., gene editing goes against nature) do not seem convincing while consequentialist objections (e.g., safety for the children thus conceived and following generations) require research, not all of which is allowed in the current legal situation in European countries. Development of this Background document and Recommendations reflects the responsibility to help society understand and debate the full range of possible implications of the new technologies, and to contribute to regulations that are adapted to the dynamics of the field while taking account of ethical considerations and societal concerns. PMID- 29326431 TI - Impact of oncogenic pathways on evasion of antitumour immune responses. AB - Immunotherapeutic interventions are showing effectiveness across a wide range of cancer types, but only a subset of patients shows clinical response to therapy. Responsiveness to checkpoint blockade immunotherapy is favoured by the presence of a local, CD8+ T cell-based immune response within the tumour microenvironment. As molecular analyses of tumours containing or lacking a productive CD8+ T cell infiltrate are being pursued, increasing evidence is indicating that activation of oncogenic pathways in tumour cells can impair induction or execution of a local antitumour immune response. This Review summarizes our current knowledge of the influence of oncogenic effects on evasion of antitumour immunity. PMID- 29326432 TI - Yue Chen. PMID- 29326433 TI - Reduced Density of DISC1 Expressing Astrocytes in the Dentate Gyrus but not in the Subventricular Zone in Schizophrenia. PMID- 29326434 TI - Memory Retention Involves the Ventrolateral Orbitofrontal Cortex: Comparison with the Basolateral Amygdala. AB - This corrects the article DOI: 10.1038/npp.2017.139. PMID- 29326435 TI - A combined analysis of genetically correlated traits identifies 187 loci and a role for neurogenesis and myelination in intelligence. AB - Intelligence, or general cognitive function, is phenotypically and genetically correlated with many traits, including a wide range of physical, and mental health variables. Education is strongly genetically correlated with intelligence (rg = 0.70). We used these findings as foundations for our use of a novel approach-multi-trait analysis of genome-wide association studies (MTAG; Turley et al. 2017)-to combine two large genome-wide association studies (GWASs) of education and intelligence, increasing statistical power and resulting in the largest GWAS of intelligence yet reported. Our study had four goals: first, to facilitate the discovery of new genetic loci associated with intelligence; second, to add to our understanding of the biology of intelligence differences; third, to examine whether combining genetically correlated traits in this way produces results consistent with the primary phenotype of intelligence; and, finally, to test how well this new meta-analytic data sample on intelligence predicts phenotypic intelligence in an independent sample. By combining datasets using MTAG, our functional sample size increased from 199,242 participants to 248,482. We found 187 independent loci associated with intelligence, implicating 538 genes, using both SNP-based and gene-based GWAS. We found evidence that neurogenesis and myelination-as well as genes expressed in the synapse, and those involved in the regulation of the nervous system-may explain some of the biological differences in intelligence. The results of our combined analysis demonstrated the same pattern of genetic correlations as those from previous GWASs of intelligence, providing support for the meta-analysis of these genetically-related phenotypes. PMID- 29326436 TI - p66Shc deficiency enhances CXCR4 and CCR7 recycling in CLL B cells by facilitating their dephosphorylation-dependent release from beta-arrestin at early endosomes. AB - Neoplastic cell traffic abnormalities are central to the pathogenesis of chronic lymphocytic leukemia (CLL). Enhanced CXC chemokine receptor-4 (CXCR4) and chemokine receptor-7 (CCR7) recycling contributes to the elevated surface levels of these receptors on CLL cells. Here we have addressed the role of p66Shc, a member of the Shc family of protein adaptors the expression of which is defective in CLL cells, in CXCR4/CCR7 recycling. p66Shc reconstitution in CLL cells reduced CXCR4/CCR7 recycling, lowering their surface levels and attenuating B-cell chemotaxis, due to their accumulation in Rab5+ endosomes as serine phosphoproteins bound to beta-arrestin. This results from the ability of p66Shc to inhibit Ca2+ and PP2B-dependent CXCR4/CCR7 dephosphorylation and beta-arrestin release. We also show that ibrutinib, a Btk inhibitor that promotes leukemic cell mobilization from lymphoid organs, reverses the CXCR4/CCR7 recycling abnormalities in CLL cells by increasing p66Shc expression. These results, identifying p66Shc as a regulator of CXCR4/CCR7 recycling in B cells, underscore the relevance of its deficiency to CLL pathogenesis and provide new clues to the mechanisms underlying the therapeutic effects of ibrutinib. PMID- 29326437 TI - Insertional mutagenesis in a HER2-positive breast cancer model reveals ERAS as a driver of cancer and therapy resistance. AB - Personalized medicine for cancer patients requires a deep understanding of the underlying genetics that drive cancer and the subsequent identification of predictive biomarkers. To discover new genes and pathways contributing to oncogenesis and therapy resistance in HER2+ breast cancer, we performed Mouse Mammary Tumor Virus (MMTV)-induced insertional mutagenesis screens in ErbB2/cNeu transgenic mouse models. The screens revealed 34 common integration sites (CIS) in mammary tumors of MMTV-infected mice, highlighting loci with multiple independent MMTV integrations in which potential oncogenes are activated, most of which had never been reported as MMTV CIS. The CIS most strongly associated with the ErbB2-transgenic genotype was the locus containing Eras (ES cell-expressed Ras), a constitutively active RAS-family GTPase. We show that upon expression, Eras acts as a potent oncogenic driver through hyperactivation of the PI3K/AKT pathway, in contrast to other RAS proteins that signal primarily via the MAPK/ERK pathway and require upstream activation or activating mutations to induce signaling. We additionally show that ERAS synergistically enhances HER2-induced tumorigenesis and, in this role, can functionally replace ERBB3/HER3 by acting as a more powerful activator of PI3K/AKT signaling. Although previously reported as pseudogene in humans, we observed ERAS RNA and protein expression in a substantial subset of human primary breast carcinomas. Importantly, we show that ERAS induces primary resistance to the widely used HER2-targeting drugs Trastuzumab (Herceptin) and Lapatinib (Tykerb/Tyverb) in vivo, and is involved in acquired resistance via selective upregulation during treatment in vitro, indicating that ERAS may serve as a novel clinical biomarker for PI3K/AKT pathway hyperactivation and HER2-targeted therapy resistance. PMID- 29326438 TI - Conditional knockout of N-Myc and STAT interactor disrupts normal mammary development and enhances metastatic ability of mammary tumors. AB - The process of organ development requires a delicate balance between cellular plasticity and differentiation. This balance is disrupted in cancer initiation and progression. N-Myc and STAT interactor (NMI: human or Nmi: murine) has emerged as a relevant player in the etiology of breast cancer. However, a fundamental understanding of its relevance to normal mammary biology is lacking. To gain insight into its normal function in mammary gland, we generated a mammary specific Nmi knockout mouse model. We observed that Nmi protein expression is induced in mammary epithelium at the onset of pregnancy, in luminal cells and persists throughout lactation. Nmi knockout results in a precocious alveolar phenotype. These alveoli exhibit an extensive presence of nuclear beta-catenin and enhanced Wnt/beta-catenin signaling. The Nmi knockout pubertal ductal tree shows enhanced invasion of the mammary fatpad and increased terminal end bud numbers. Tumors from Nmi null mammary epithelium show a significant enrichment of poorly differentiated cells with elevated stem/progenitor markers, active Wnt/beta-catenin signaling, highly invasive morphology as well as, increased number of distant metastases. Our study demonstrates that Nmi has a distinct role in the differentiation process of mammary luminal epithelial cell compartment and developmental aberrations resulting from Nmi absence contribute to metastasis and demonstrates that aberration in normal developmental program can lead to metastatic disease, highlighting the contribution and importance of luminal progenitor cells in driving metastatic disease. PMID- 29326439 TI - Lung fibroblasts promote metastatic colonization through upregulation of stearoyl CoA desaturase 1 in tumor cells. AB - As a rate-limiting step in metastasis, metastatic colonization requires survival signals from supportive stroma. However, the mechanisms driving this process are incompletely understood. Here, we showed that the proliferation of B16F10 cells was promoted when cocultured with lung fibroblasts. Meanwhile, co-injection of B16F10 tumor cells with mouse lung fibroblasts significantly increased lung metastasis. Based on GEO database, we identified stearoyl-CoA desaturase 1 (SCD1) as a novel factor promoting metastatic colonization. Importantly, we found that fibroblast-secreted cathepsin B (CTSB) induced the upregulation of SCD1 in B16F10 through Annexin A2 (ANXA2) and PI3K/Akt/mTOR pathway. The elevated SCD1 induced a higher ratio of monounsaturated fatty acids to saturated fatty acids in B16F10 cells. The changes in fatty acid composition contributed to tumor cell proliferation and metastatic colonization. Furthermore, targeting SCD1 effectively inhibited lung metastasis and prolonged the overall survival of mice. Meanwhile, the expression of SCD1 was negatively correlated with disease-free survival in five types of cancer patients. Collectively, our study identifies SCD1 as a critical modulator of tumor cell proliferation that is activated by cathepsin B, secreted by lung fibroblasts at the metastatic niche. Our novel findings provide potential therapeutic targets to prevent tumor metastasis. PMID- 29326441 TI - Dental caries: Caries risk assessment tools. PMID- 29326443 TI - Aesthetic possibilities in removable prosthodontics. Part 1: the aesthetic spectrum from perfect to personal. AB - Patients requiring dentures are getting older and as a result can be difficult to treat owing to various co-morbidities. This series of papers presents an overview of the processes involved in making removable dentures which the patient considers to be functionally and aesthetically successful. We hope not only to provide technical suggestions but also to address the issue of the clinician's, technician's and dental nurse's relationships with the dentally depleted patient. It is increasingly clear from defence organisation reports that this has a decisive effect on the success of this fundamentally difficult enterprise ('The only branch of dentistry in which you are trying to attach something to nothing' [Hubert Aiche]). It seems best to conduct the planning and the treatment itself as a co-production - the patient assuming responsibility for choosing between the treatment options offered and playing the leading role in making aesthetic decisions. Distinctions are drawn between the idealised whiter-than-white, 'nobody-in-particular', attention-seeking denture at one extreme, and the highly personalised, discreet and naturalistic denture at the other. Reproducing nature in this way is time consuming and therefore expensive, but many 'denture sufferers' see it as good value. Methods for creating the latter, which through its very normality switches off the social observer's attention, are explained in detail in papers two and three of this series. These papers are designed to help clinicians and technicians involved in providing removable prosthodontics improve the appearance of their dentures and increase their patients' aesthetic satisfaction. They are not scientific articles in the Popperian sense of advancing theories which are capable of being falsified. Instead, they are an amalgamation of 72 years of combined experience in providing removable dental prostheses. We have found this branch of dentistry immensely interesting and have on many occasions had the satisfaction of seeing our patients' lives changed for the better. PMID- 29326440 TI - BRAF inhibition upregulates a variety of receptor tyrosine kinases and their downstream effector Gab2 in colorectal cancer cell lines. AB - BRAF mutations occur in ~10% of colorectal cancer (CRC) and are associated with poor prognosis. Inhibitors selective for the BRAFV600E oncoprotein, the most common BRAF mutant, elicit only poor response rates in BRAF-mutant CRC as single agents. This unresponsiveness was mechanistically attributed to the loss of negative feedbacks on the epidermal growth factor receptor (EGFR) and initiated clinical trials that combine BRAF (and MEK) inhibitors, either singly or in combination, with the anti-EGFR antibodies cetuximab or panitumumab. First results of these combinatorial studies demonstrated improved efficacy, however, the response rates still were heterogeneous. Here, we show that BRAF inhibition leads to the upregulation of a variety of receptor tyrosine kinases (RTKs) in CRC cell lines, including not only the EGFR, but also human epidermal growth factor receptor (HER) 2 and HER3. Importantly, combination of the BRAF inhibitors (BRAFi) vemurafenib (PLX4032), dabrafenib, or encorafenib with inhibitors dually targeting the EGFR and HER2 (such as lapatinib, canertinib, and afatinib) significantly reduced the metabolic activity and proliferative potential of CRC cells. This re-sensitization was also observed after genetic depletion of HER2 or HER3. Interestingly, BRAF inhibitors did not only upregulate RTKs, but also increased the abundance of the GRB2-associated binders (Gab) 1 and Gab2, two important amplifiers of RTK signaling. An allele-specific shRNA-mediated knockdown of BRAFV600E revealed that Gab2 upregulation was directly dependent on the loss of the oncoprotein and was not caused by an "off-target" effect of these kinase inhibitors. Furthermore, Gab2 and Gab2-mediated Shp2 signaling were shown to be functionally important in BRAFi resistance. These findings highlight potential new escape mechanisms to these targeted therapies and indicate that a broad suppression of RTK signaling might be beneficial and should be taken into account in future research addressing targeted therapy in BRAF-mutant CRC. PMID- 29326446 TI - Special feature: What role do alternative realities play in educating dentists? PMID- 29326447 TI - Conference report: Dentinal Tubules Inaugural Congress 2017. PMID- 29326449 TI - The future of failure to warn in dentistry after Montgomery: reflections from Australia. AB - The switch from the standard of the reasonable professional, to that of the reasonable patient in cases where it is alleged that a health professional has not imparted sufficient information to allow the gaining of valid consent, has created anxiety and confusion within the dental profession. The ruling in Montgomery v Lanarkshire Health Board is relatively young; there have been insufficient subsequent cases to truly allow a deep exploration of the real changes that the case will bring to the way dentistry and other health activities are provided. One way that light may be shone onto the significance of Montgomery is to examine the development of the law in this area from Australia. Australia and the UK share a common history and while each legal system is independent from the other, they hold significant influence upon each other's destiny. This article seeks to shed light on the true relevance of Montgomery to dentistry in the UK through examination of the Australian position towards the gaining of valid consent which has enjoyed somewhat of a head-start in this area of the law. PMID- 29326450 TI - Cariogenicity of e-cigarettes. PMID- 29326453 TI - The use of Hall technique preformed metal crowns by specialist paediatric dentists in the UK. AB - Background Hall technique preformed metal crowns (HTPMCs) have been increasing in use recently, but little is currently known about their use by specialists.Aim To investigate the views and usage of HTPMCs by UK specialist paediatric dentists.Design This was a prospective questionnaire-based study, distributed online to all specialists on the British Society of Paediatric Dentistry email list between July and September 2014.Results Ninety-four questionnaires were completed. The majority of respondents, 65% (61) worked in teaching hospitals, followed by community dental services, 37% (35). Ninety-six percent (89) reported that they used HTPMCs in their practice. Fifty-eight percent (54) used HTPMCs as a treatment option for restoring symptomless carious primary molars, and 15% (14) only when unable to provide conventional restoration. Twenty-three percent (21) used HTPMCs as the treatment of choice. Only 4% (4) of respondents never used them. Sixty percent (53) had been using HTPMCs for over five years. Seventy-six percent (68) would consider placing HTPMCs under inhalation sedation, and 26% (23) under general anaesthesia. Over 90% (85) believed that HTPMCs are suitable for undergraduate teaching, general practice, postgraduate training and specialist practice.Conclusion HTPMCs are widely used among specialist paediatric dentists in the UK. PMID- 29326455 TI - You're a BDJ reader, so join our team! PMID- 29326454 TI - Primary dental care: Rubber dam, feather fingers and reflection. PMID- 29326456 TI - Case report: coronectomy of an impacted and submerged second deciduous molar. AB - Coronectomy is a widely-accepted technique available for the treatment of impacted wisdom teeth. The fundamental principle is to prevent trauma to the inferior dental nerve (IDN). Many publications have demonstrated its positive outcomes but there is no literature available regarding coronectomy of deciduous teeth. This case report highlights the complex approach to managing a severely infraoccluded 85 in the mixed dentition of a 10-year-old female. The report demonstrates and discusses the combined orthodontic and oral surgical approach to prevent damage to the IDN and to allow space for orthodontic movement. This case demonstrates how nerve sparing techniques in the mixed dentition are achievable.Clinical relevance statement When managing severely infraoccluded and impacted deciduous second molars, clinicians must be aware that the option of a coronectomy should be considered and may be the difference between sparing the nerve or causing permanent injury.Objective The reader should understand that coronectomy is a suitable treatment option in managing impacted deciduous teeth. PMID- 29326457 TI - Oral health: The Sakata model. PMID- 29326460 TI - Aesthetic dentistry: Advancing the maxilla. PMID- 29326462 TI - Dentistry Jim: But not as we know it! PMID- 29326463 TI - A pilot study on the feasibility of training nurses to formulate multicomponent oral health interventions in a residential aged care facility. AB - '...... private practice becomes a barrier to delivering dental care in residential settings'. PMID- 29326464 TI - Notice of deaths. PMID- 29326465 TI - A teaching tool for establishing risk of oral health deterioration in elderly patients; development, implementation and evaluation at a US dental school. AB - Seeking to understand the complexities of the information required to assess oral disease risk in older patients. PMID- 29326466 TI - A study of oral health prevention behaviours for patients with early stage dementia. AB - Background Thorough dental prevention provided at the diagnosis of early stage dementia may be able to reduce the risk of dental disease before the associated cognitive decline takes hold.Method A questionnaire was used to see how many patients with a recent diagnosis of dementia were registered with a dentist and if they were accessing preventative dental care. The questionnaire was administered to patients attending Memory Assessment Services (MAS), approximately ten weeks after initial diagnosis. A similar questionnaire was conducted among MAS staff providing insight into their own personal dental care knowledge and behaviours.Results The total number of participants in the study was 51. Eighty percent were currently registered or seen regularly by a dentist. About half of all patients attended for regular hygienist sessions. Most patients did not receive dietary advice or oral hygiene instruction, nor were offered additional fluoride supplementation.Conclusion There was clearly scope for improving oral health education and prevention for dementia patients. MAS nurses were aware of the need for good oral health for themselves and for their patients, however, weren't aware of the current best evidence for prevention as prescribed by the Delivering Better Oral Health toolkit. PMID- 29326468 TI - Smoking: Developing the evidence base. PMID- 29326471 TI - UK professional bodies sign and publish evidence declaration. PMID- 29326470 TI - Dentists on film: Finding Nemo. PMID- 29326474 TI - Gerodontology: Denture loss in hospitals. PMID- 29326475 TI - Alternative sugars: Sucralose. PMID- 29326476 TI - Dental radiography: Root dwarfism. PMID- 29326477 TI - The oral health status of older patients in acute care on admission and day 7 in two Australian hospitals. AB - Good oral hygiene needed to prevent hospital acquired aspiration pneumonia in older patients. PMID- 29326478 TI - Publisher Correction: Transcriptome dynamics revealed by a gene expression atlas of the early Arabidopsis embryo. AB - In the version of this Resource originally published, the author information was incorrect. Jos R. Wendrich should have had a present address: Department of Plant Biotechnology and Bioinformatics and VIB Center for Plant Systems Biology, Ghent University, Technologiepark 927, 9052 Ghent, Belgium. Mark Boekschoten and Guido J. Hooiveld should have been affiliated to the Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, 6708 WE Wageningen, The Netherlands. In addition, the version of Supplementary Table 5 originally published with this Resource was not the intended final version and included inaccurate citations to the display items of the Resource, and the file format and extension did not match. These errors have now been corrected in all versions of the Resource. PMID- 29326480 TI - Weather-Related Hazards and Population Change: A Study of Hurricanes and Tropical Storms in the United States, 1980-2012. AB - Environmental determinists predict that people move away from places experiencing frequent weather hazards, yet some of these areas have rapidly growing populations. This analysis examines the relationship between weather events and population change in all U.S. counties that experienced hurricanes and tropical storms between 1980 and 2012. Our database allows for more generalizable conclusions by accounting for heterogeneity in current and past hurricane events and losses and past population trends. We find that hurricanes and tropical storms affect future population growth only in counties with growing, high density populations, which are only 2 percent of all counties. In those counties, current year hurricane events and related losses suppress future population growth, although cumulative hurricane-related losses actually elevate population growth. Low-density counties and counties with stable or declining populations experience no effect of these weather events. Our analysis provides a methodologically informed explanation for contradictory findings in prior studies. PMID- 29326479 TI - Artificial barriers prevent genetic recovery of small isolated populations of a low-mobility freshwater fish. AB - Habitat loss and fragmentation often result in small, isolated populations vulnerable to environmental disturbance and loss of genetic diversity. Low genetic diversity can increase extinction risk of small populations by elevating inbreeding and inbreeding depression, and reducing adaptive potential. Due to their linear nature and extensive use by humans, freshwater ecosystems are especially vulnerable to habitat loss and fragmentation. Although the effects of fragmentation on genetic structure have been extensively studied in migratory fishes, they are less understood in low-mobility species. We estimated impacts of instream barriers on genetic structure and diversity of the low-mobility river blackfish (Gadopsis marmoratus) within five streams separated by weirs or dams constructed 45-120 years ago. We found evidence of small-scale (<13 km) genetic structure within reaches unimpeded by barriers, as expected for a fish with low mobility. Genetic diversity was lower above barriers in small streams only, regardless of barrier age. In particular, one isolated population showed evidence of a recent bottleneck and inbreeding. Differentiation above and below the barrier (FST = 0.13) was greatest in this stream, but in other streams did not differ from background levels. Spatially explicit simulations suggest that short term barrier effects would not be detected with our data set unless effective population sizes were very small (<100). Our study highlights that, in structured populations, the ability to detect short-term genetic effects from barriers is reduced and requires more genetic markers compared to panmictic populations. We also demonstrate the importance of accounting for natural population genetic structure in fragmentation studies. PMID- 29326481 TI - Poverty, Homelessness, and Family Break-Up. AB - This study examines the extent and correlates of family separations in families experiencing homelessness. Of 2,307 parents recruited in family shelters across 12 sites, a tenth were separated from partners and a quarter from one or more children. Additional separations before and after shelter entry and reasons, from parents' perspectives, were documented in qualitative interviews with a subsample of 80 parents. Separations were associated with economic hardship, shelter conditions, and family characteristics. PMID- 29326482 TI - Compounded Apixaban Suspensions for Enteral Feeding Tubes. AB - Objective: There is limited information on compounded apixaban formulations for administration via enteral feeding tubes. This study was designed to identify a suitable apixaban suspension formulation that is easy to prepare in a pharmacy setting, is compatible with commonly used feeding tubes, and has a beyond-use date of 7 days. Methods: Apixaban suspensions were prepared from commercially available 5-mg Eliquis tablets. Several vehicles and compounding methods were screened for ease of preparation, dosage accuracy, and tube compatibility. Two tubing types, polyurethane and polyvinyl chloride, with varying lengths and diameters, were included in the study. They were mounted on a peg board during evaluation to mimic the patient body position. A 7-day stability study of the selected formulation was also conducted. Results: Vehicles containing 40% to 60% Ora-Plus in water all exhibited satisfactory flowability through the tubes. The mortar/pestle compounding method was found to produce more accurate and consistent apixaban suspensions than the pill crusher or crushing syringe method. The selected formulation, 0.25 mg/mL apixaban in 50:50 Ora-Plus:water, was compatible with both tubing types, retaining >98% drug in posttube samples. The stability study also confirmed that this formulation was stable physically and chemically over 7 days of storage at room temperature. Conclusions: A suitable apixaban suspension formulation was identified for administration via enteral feeding tubes. The formulation consisted of 0.25 mg/mL apixaban in 50:50 Ora Plus:water. The stability study results supported a beyond-use date of 7 days at room temperature. PMID- 29326483 TI - Ricean over Gaussian modelling in magnitude fMRI Analysis-Added Complexity with Negligible Practical Benefits. AB - It is well-known that Gaussian modeling of functional Magnetic Resonance Imaging (fMRI) magnitude time-course data, which are truly Rice-distributed, constitutes an approximation, especially at low signal-to-noise ratios (SNRs). Based on this fact, previous work has argued that Rice-based activation tests show superior performance over their Gaussian-based counterparts at low SNRs and should be preferred in spite of the attendant additional computational and estimation burden. Here, we revisit these past studies and after identifying and removing their underlying limiting assumptions and approximations, provide a more comprehensive comparison. Our experimental evaluations using ROC curve methodology show that tests derived using Ricean modeling are substantially superior over the Gaussian-based activation tests only for SNRs below 0.6, i.e SNR values far lower than those encountered in fMRI as currently practiced. PMID- 29326484 TI - New Antarctic Gravity Anomaly Grid for Enhanced Geodetic and Geophysical Studies in Antarctica. AB - Gravity surveying is challenging in Antarctica because of its hostile environment and inaccessibility. Nevertheless, many ground-based, airborne and shipborne gravity campaigns have been completed by the geophysical and geodetic communities since the 1980s. We present the first modern Antarctic-wide gravity data compilation derived from 13 million data points covering an area of 10 million km2, which corresponds to 73% coverage of the continent. The remove-compute restore technique was applied for gridding, which facilitated levelling of the different gravity datasets with respect to an Earth Gravity Model derived from satellite data alone. The resulting free-air and Bouguer gravity anomaly grids of 10 km resolution are publicly available. These grids will enable new high resolution combined Earth Gravity Models to be derived and represent a major step forward towards solving the geodetic polar data gap problem. They provide a new tool to investigate continental-scale lithospheric structure and geological evolution of Antarctica. PMID- 29326485 TI - Orphan drugs: Indian perspective. PMID- 29326486 TI - Standardization and validation of objective structured practical examination in pharmacology: Our experience and lessons learned. AB - OBJECTIVES: The present study is an attempt to standardize and establish validity and reliability of objective structured practical examination (OSPE) as a tool of assessment in pharmacology. METHODS: The individual stations were standardized by establishing the blueprint of assessment, checklists for individual OSPE stations, and a review and revision of existing OSPE stations through intensive focus group discussions. Face and content validity was established by subject nonexperts and experts, respectively. Internal construct reliability was assessed using Cronbach's alpha. The scores obtained by the students during their formative sessional examinations were analyzed to calculate Cronbach's alpha, a measure of internal construct reliability and Pearson's coefficient of correlation was used to analyze test-retest reliability and interexaminer reliability. Student and faculty feedback were taken using an open-ended questionnaire. RESULTS: The Pearson's coefficient of correlation for inter-rater reliability was 0.985, P = 0.0001. The Pearson's coefficient of correlation for test-retest reliability was 0.967, P = 0.0001. Cronbach's alpha values for first, second, and third sessional examinations were 0.825, 0.724, and 0.798, respectively. CONCLUSION: The faculty and student feedback received was constructive and enabled a systematic review of the existing method and also served as a means to revise the existing curricula. PMID- 29326487 TI - Antitoxin activity of aqueous extract of Cyclea peltata root against Naja naja venom. AB - OBJECTIVES: Snakebites are a significant and severe global health problem. Till date, anti-snake venom serum is the only beneficial remedy existing on treating the snakebite victims. As antivenom was reported to induce early or late adverse reactions to human beings, snake venom neutralizing potential for Cyclea peltata root extract was tested for the present research by ex vivo and in vivo approaches on Naja naja toxin. MATERIALS AND METHODS: Ex vivo evaluation of venom toxicity and neutralization assays was carried out. The root extracts from C. peltata were used to evaluate the Ex vivo neutralization tests such as acetylcholinesterase, protease, direct hemolysis assay, phospholipase activity, and procoagulant activity. Gas chromatography-mass spectrometry (GC-MS) analysis from root extracts of C. peltata was done to investigate the bioactive compounds. RESULTS: The in vivo calculation of venom toxicity (LD50) of N. naja venom remained to be 0.301 MUg. C. peltata root extracts were efficiently deactivated the venom lethality, and effective dose (ED50) remained to be 7.24 mg/3LD50 of N. naja venom. C. peltata root extract was found effective in counteracting all the lethal effects of venom. GC-MS analysis of the plant extract revealed the presence of antivenom compounds such as tetradecanoic and octadecadienoic acid which have neutralizing properties on N. naja venom. CONCLUSION: The result from the ex vivo and in vivo analysis indicates that C. peltata plant root extract possesses significant compounds such as tetradecanoic acid hexadecanoic acid, heptadecanoic acid, and octadecadienoic acid which can counteract the toxins present in N. naja. PMID- 29326488 TI - Resveratrol prevents liver fibrosis via two possible pathways: Modulation of alpha fetoprotein transcriptional levels and normalization of protein kinase C responses. AB - OBJECTIVE: Liver fibrosis is a global health problem that causes approximately 1.4 million deaths per year. It is associated with inflammation, oxidative stress, necrosis and ends with cirrhosis, liver cancer, or liver failure. Therefore, the present study was constructed to investigate the protective effect of resveratrol (RVT) on liver fibrosis, focusing on the possible involvement of alpha 1-fetoprotein and protein kinase C signaling. MATERIALS AND METHODS: Rats received thioacetamide (TAA) (200 mg/kg, intraperitoneal) twice weekly, for 4 successive weeks to induce liver fibrosis. RVT (30 mg/kg, per os) and vehicle were administered orally for 1 month before and another month during TAA intoxication. Body weights and mortality rate were assessed during the experiment. Liver functions and protein concentration were determined in serum, while liver tissues were analyzed for oxidative and fibrotic biomarkers. Moreover, histological examinations were performed to liver biopsies. RESULTS: RVT prevented the debility of TAA; liver functions including alanine aminotransferase, aspartate aminotransferase, bilirubin, and albumin were also protected. RVT prevented TAA oxidative stress, and normal liver contents of malondialdehyde and reduced glutathione were markedly preserved. In addition, RVT abolished the stimulant effect of TAA to fibrosis markers and conserved normal liver contents of nuclear factor kappa B, hydroxyproline, and alpha fetoprotein. Histological examinations indicated normal liver architecture in RVT-administered rats as compared to their TAA-administered peers. CONCLUSION: RVT was able to enhance liver functions, prevent oxidative stress, and eliminate liver fibrosis. Hence, the present data highlight the therapeutic potential of RVT as a protective agent against liver fibrosis. PMID- 29326489 TI - Ondansetron ameliorates depression associated with obesity in high-fat diet fed experimental mice: An investigation-based on the behavioral, biochemical, and molecular approach. AB - INTRODUCTION: Obesity is an important risk factor for depression as more than half of the obese population is susceptible for depression at double rate. Our earlier studies reported the antidepressant potential of 5-HT3 receptor antagonist, ondansetron (OND) in depression associated obesity using behavioral tasks. The present research work is aimed to evaluate the effect of OND on depression associated with obesity with special emphasis on biochemical and molecular mechanisms such as hippocampal brain-derived neurotrophic factor (BDNF), cyclic adenosine monophosphate (cAMP), 5-hydroxytryptamine (5-HT), hippocampal histological examination and immunohistochemical expression of p53 proteins. MATERIALS AND METHODS: Mice were fed with high-fat diet (HFD) for 14 weeks, followed by treatment schedule for 28 days with vehicle/OND (0.5 and 1 mg/kg, p.o.)/reference antidepressant escitalopram (10 mg/kg, p.o.). Subsequently, animals were screened in the behavioral tests of depression such as forced swim test (FST) and sucrose preference test (SPT), biochemical estimations including hippocampal cAMP, BDNF and 5-HT, and molecular assays mainly histology and p53 expression of dentate gyrus (DG). RESULTS: HFD-fed mice showed increased immobility time in FST, reduced sucrose consumption in SPT, decreased level of signal transduction factor cAMP, neuronal growth factor BDNF and neurotransmitter 5-HT in the hippocampus, and raised and p53 expression neuronal damage in the DG region of mice fed with HFD in comparison to the mice fed with normal pellet diet. Chronic treatment with OND (0.5 and 1 mg/kg, p.o.) significantly inhibited the behavioral, biochemical and molecular modifications in HFD-fed mice. CONCLUSION: In the preliminary study, OND attenuated depression associated with obesity in mice fed with HFD using various assays procedures, at least in part by the modulation of serotonergic transmission. PMID- 29326490 TI - Investigation of in vitro absorption, distribution, metabolism, and excretion and in vivo pharmacokinetics of paromomycin: Influence on oral bioavailability. AB - OBJECTIVE: The objective of this study is to investigate in vitro Caco2 permeability, metabolism and in vivo pharmacokinetic (PK) properties of paromomycin to develop an efficient dosage form with improved oral bioavailability. MATERIALS AND METHODS: For the purpose, Caco2 permeability assay, mouse microsomal stability assay and in vivo PKs in male BALB/c mice were performed. RESULTS: In Caco-2 permeability assay, paromomycin showed negligible permeability in the apical to basolateral (A-to-B) direction and vice versa (B-to A). Marginal increase in permeability with the use of P-glycoprotein (P-gp) inhibitor, namely, verapamil suggesting paromomycin could be a P-gp substrate. Paromomycin was unstable in liver microsomes of mouse. Paromomycin showed good PK properties after intravenous dose in male BALB/c mice which included low plasma clearance, i.e., <10% of hepatic blood flow in mice, high volume of distribution (Vd), and half-life (T1/2) of 2.6 h. Following per oral dose, it exhibits low oral bioavailability (0.3%) with carboxymethyl cellulose formulation. Oral plasma exposure increased in mice by 10% and 15% after pretreatment with P-gp inhibitor verapamil and CYP inhibitor 1-Aminobenztriazole, respectively. CONCLUSION: Comparatively significant increase in oral plasma exposure of paromomycin was observed with an alternative oral formulation approach, use of P-gp and CYP inhibitors resulting in improved oral bioavailability up to 16%. PMID- 29326491 TI - Comparison of midazolam with fentanyl-midazolam combination during flexible bronchoscopy: A randomized, double-blind, placebo-controlled study. AB - BACKGROUND: Sedation during flexible bronchoscopy is desirable, but the drugs and the dosage protocols that are used vary. OBJECTIVE: To study and compare the effects of midazolam with fentanyl-midazolam combination during flexible bronchoscopy. MATERIALS AND METHODS: The study was conducted on 144 patients, from October 2013 to July 2015. They answered Hospital Anxiety and Depression Scale-Anxiety subscale and a prebronchoscopy questionnaire to assess their expectation toward flexible bronchoscopy. The patients were randomized into three groups: placebo, midazolam, and fentanyl-midazolam. Vitals signs including heart rate, respiratory rate, blood pressure, and oxygen saturation (SpO2) were recorded. Furthermore, Ramsay Sedation Scale was assessed during the procedure. Primary outcome measure was the composite score of patient-reported tolerance and satisfaction (assessed after the procedure). Secondary outcome measures were composite score of physician-reported feasibility of the procedure, hemodynamic changes during bronchoscopy, and side effects. RESULTS: Patient-reported tolerance and satisfaction composite scores (median, interquartile range) for placebo, midazolam, and fentanyl-midazolam groups were 54 (52, 57), 59 (57, 61.5), 62 (58.5, 66), respectively; P < 0.001. Physician-reported feasibility composite scores (median, interquartile range) for the respective groups were 24.5 (20.5, 28), 25 (21, 27), 26 (25, 29); P = 0.004. There was no significant difference between the groups so far as mean heart rate (P = 0.305), mean systolic blood pressure (P = 0.532), mean diastolic blood pressure (P = 0.516), mean respiratory rate (P = 0.131), and mean SpO2 (P = 0.968) were concerned. CONCLUSION: Conscious sedation with fentanyl and midazolam combination can result in better patient and operator satisfaction when compared with midazolam alone. PMID- 29326492 TI - Hemorheological effects of amlodipine in spontaneously hypertensive rats. AB - OBJECTIVES: The effect of course administration of amlodipine on whole blood viscosity and on macro- and microrheological parameters was evaluated. MATERIALS AND METHODS: SHRs were treated intragastrically with amlodipine at a dose of 10 mg/kg for 6 weeks. After finishing the course, hemodynamic and hemorheological parameters were measured. RESULTS: The antihypertensive treatment with amlodipine resulted in a significant decrease in mean blood pressure by 29% and left ventricular to body weight mass index by 7%. Nevertheless, BV tended to increase. The administration of amlodipine had no effect on PV, plasma fibrinogen concentration, RBC aggregation, and RBC deformability, but hematocrit was higher (by 6%) than it was in control group. CONCLUSIONS: These results demonstrate that amlodipine has no positive hemorheological improvements when administered to SHRs. PMID- 29326494 TI - Experience of an academic institute in importing a novel preclinical drug into India. AB - The article throws light on the process of importing a novel preclinical drug into India based on the real-life experience from one of our studies. A novel drug "X" acting through a new mechanism of action was hypothesized by us to function as a neuroprotectant. It was decided to import this novel drug from a university located in Brazil. An official collaboration pact was exchanged between both the sides. In accordance with the Indian Drug and Cosmetics Act 1940, unauthorized import of drug into India is not permitted. Hence, we decided to apply for the import license from Government of India. During the process of registration, we realized that the CDSCO SUGAM portal did not have facilities for the application from academic institute. We further faced challenges in different steps of import such as registration of the institute, individual drug application, fee transaction through the bank for Form 12, and customs duty clearance in the New Delhi airport. The process of import of drug for the purpose of testing by academic institutes has not been regularized by the CDSCO, and we suggest the apex organization to make separate provision for the academic institutes. This will encourage more academic institutes in India to opt for global collaborative works. This narration will further help them in following the same footsteps without facing significant hurdles. If more research on novel chemical entities is carried out in various academic institutes of India, it would not be far that we discover a blockbuster drug making the whole world turn toward us. PMID- 29326493 TI - Renal mitochondria can withstand hypoxic/ischemic injury secondary to renal failure in uremic rats pretreated with sodium thiosulfate. AB - BACKGROUND: Sodium thiosulfate (STS) is a potent drug used to treat calcific uremic arteriopathy in dialysis patients and its mode of action is envisaged by calcium chelation and antioxidant potential. STS's action on mitochondrial dysfunction, one of the major players in the pathology of vascular calcification is yet to be explored. METHODS: Adenine (0.75%, 28 days)-treated vascular calcified rat kidney was used to isolate mitochondria, where the animal was administered with or without STS for 28 days. Isolated mitochondria were subjected to physiological oxidative stress by nitrogen gas purging (hypoxia/ischemia-reperfusion injury) to assess mitochondrial recovery extent due to STS treatment in vascular calcified rat kidney. RESULTS: The results confirmed an elevated oxidative stress and deteriorated mitochondrial enzyme activities in all groups except the drug-treated group. CONCLUSION: The STS treatment, besides rendering renal protection against adenine-induced renal failure, also helped to maintain mitochondrial functional integrity in a later insult due to hypoxia/ischemia-reperfusion injury. PMID- 29326495 TI - Acute dystonic reaction leading to lingual hematoma mimicking angioedema. AB - Lingual hematoma is a severe situation, which is rare and endangers the airway. It can develop due to trauma, vascular abnormalities, and coagulopathy. Due to its sudden development, it can be clinically confused with angioedema. In patients who applied to the doctor with complaints of a swollen tongue, lingual hematoma can be confused with angioedema, in particular, at the beginning if the symptoms occurred after drug use. It should especially be considered that dystonia in the jaw can present as drug-induced hyperkinetic movement disorder. Early recognition of this rare clinical condition and taking precautions for providing airway patency are essential. In this case report, we will discuss mimicking angioedema and caused by a bite due to dystonia and separation of the tongue from the base of the mouth developing concurrently with lingual hematoma. PMID- 29326496 TI - A Simple Method for Deriving the Confidence Regions for the Penalized Cox's Model via the Minimand Perturbation. AB - We propose a minimand perturbation method to derive the confidence regions for the regularized estimators for the Cox's proportional hazards model. Although the regularized estimation procedure produces a more stable point estimate, it remains challenging to provide an interval estimator or an analytic variance estimator for the associated point estimate. Based on the sandwich formula, the current variance estimator provides a simple approximation, but its finite sample performance is not entirely satisfactory. Besides, the sandwich formula can only provide variance estimates for the non-zero coefficients. In this article, we present a generic description for the perturbation method and then introduce a computation algorithm using the adaptive least absolute shrinkage and selection operator (LASSO) penalty. Through simulation studies, we demonstrate that our method can better approximate the limiting distribution of the adaptive LASSO estimator and produces more accurate inference compared with the sandwich formula. The simulation results also indicate the possibility of extending the applications to the adaptive elastic-net penalty. We further demonstrate our method using data from a phase III clinical trial in prostate cancer. PMID- 29326498 TI - Secret Weapon in the Battle Against Cavities? PMID- 29326497 TI - Is the modified Harris hip score valid and responsive instrument for outcome assessment in the Indian population with pertrochanteric fractures? AB - Introduction: The original Harris hip score (HHS) does not contain ability to perform squatting and sitting cross legged as items in the questionnaire and hence a need was felt to modify the Harris hip score so that it could stay relevant in functional assessment of Indian patients in the rural setting. Validity, responsiveness and ceiling floor effect of the Harris hip score after internal fixation of pertrochanteric fracture has not been previously described. The objective of the study was to investigate construct validity, responsiveness and ceiling floor effects of the modified Harris hip score (mHHS). Methods: For evaluation of construct validity two hypotheses were formulated: first, there would be no difference in mHHS in cohort of patients treated with short or long proximal femoral nail and second, patients younger than 65 years will have higher mHHS compared to patients older than 65 years postoperatively. Proportion of patients obtaining lowest score of 0 point (floor effect) and those obtaining highest score of 100 points (ceiling effect) was evaluated at one, three and six months postoperatively. It is recommended that the proportion of ceiling and floor effect should be lower than 15% in order to deduce satisfactory internal and content validity of an outcome instrument. Responsiveness was evaluated using distribution based methods (effect size and standardised response mean) and anchor based method (area under the curve using receiver operating curve). Ability to perform cross leg sitting and squatting at six months postoperatively were chosen as two different external anchors. Effect size and standardised response mean values higher than 0.80 and area under the curve value higher than 0.70 are indicators of adequate responsiveness of an outcome instrument. Results: Eighty one consecutive patients with pertrochanteric hip fractures and treated with long and short proximal femoral nail were included in this prospective observational study. Six patients were lost to follow-up due to mortality and complete functional outcome data was available in 75 patients (92.6%). The mean age was 68 years (range: 38-89 years). The mHHS at one, three and six months postoperatively was 39.9 +/- 9.5, 61.6 +/- 14.7 and 81.0 +/- 15.9 respectively. The improvement in mHHS was significant at all time intervals. In accordance with the hypothesis, there was no significant difference in mHHS at one, three and six months postoperatively in patients treated with short or long proximal femoral nail. In accordance with the hypothesis, patients younger than 65 years had significantly better mHHS at one, three and six months postoperatively as compared to patients older than 65 years. There were no floor or ceiling effects at one, three and six months postoperatively. mHHS showed adequate internal responsiveness (Effect size = 4.34; standardised response mean = 4.26) and adequate external responsiveness (Area under curve = 0.77 and 0.89) using different external anchors. Conclusion: The mHHS has adequate construct validity, internal validity and responsiveness to evaluate functional outcome of intramedullary nail fixation in pertrochanteric hip fractures in the Indian population. PMID- 29326499 TI - In Search of a Novel Substitute: Clinical and Radiological Success of Lesion Sterilization and Tissue Repair with Modified 3Mix-MP Antibiotic Paste and Conventional Pulpectomy for Primary Molars with Pulp Involvement with 18 Months Follow-up. AB - Objectives: The aim of this study was to evaluate the clinical and radiographic success of zinc oxide (ZnO)-ozonated oil, modified 3Mix antibiotic paste, and vitapex in the treatment of primary molars requiring pulpectomy. Methods: Sixty four primary molars of forty-three healthy children aged between 4 and 8 years with primary molars requiring root canal procedure were treated with ZnO-ozonated oil, modified 3Mix-MP antibiotic paste, and vitapex. Clinical follow up was done at 1, 6,12 months and 18 months while radiographical follow-up was done at 6,12 and 18 months, respectively. Results: The results showed that the clinical success rates of ZnO-ozonated oil, modified 3Mix-MP paste and vitapex were 95.5%,89.5% and 100% respectively and radiographical success rates were 94.4%,80.95% and 100% respectively after 18 months period of observation. Conclusion: The overall success rates of ZnO-ozonated oil, vitapex and modified 3Mix antibiotic paste were comparable. PMID- 29326500 TI - A Comparative Evaluation between Cheiloscopic Patterns and Terminal Planes in Primary Dentition. AB - Objective: To assess the correlation between different cheiloscopic patterns with the terminal planes in deciduous dentition. Materials and Methods: Three hundred children who are 3-6 years old with complete primary dentition were recruited, and the pattern of molar terminal plane was recorded in the pro forma. Lip prints of these children were recorded with lipstick-cellophane method, and the middle 10 mm of lower lip was analyzed for the lip print pattern as suggested by Sivapathasundharam et al. The pattern was classified based on Tsuchihashi and Suzuki classification. Results: Type II (branched) pattern was the most predominant cheiloscopic pattern. The predominant patterns which related to the terminal planes were as follows: Type IV (reticular) and Type V (irregular) pattern for mesial step, Type IV (reticular) pattern for distal step, and Type I (complete vertical) pattern for flush terminal plane. No significant relationship was obtained on gender comparison. Conclusion: Lip prints can provide an alternative to dermatoglyphics to predict the terminal plane in primary dentition. Further studies with larger sample size are required to provide an insight into its significant correlations. PMID- 29326501 TI - Analysis of Salivary IgA, Amylase, Lactoferrin, and Lysozyme Before and After Comprehensive Dental Treatment in Children: A Prospective Study. AB - Objective: This study aimed to evaluate the levels of salivary IgA, amylase, lactoferrin, and lysozyme before and after comprehensive dental treatment in children with early childhood caries. Design: Thirty children aged 36-60 months, with a deft score >=5, were selected for the study. Before dental treatment, paraffin-stimulated whole saliva was collected in a sterile graduated cup for a period of 5 min. The saliva samples were quantitatively analyzed for levels of IgA, amylase, lactoferrin, and lysozyme using enzyme-linked immunosorbent assay. Comprehensive dental treatment was carried out in all the children including caries preventive procedures. A second sample of saliva was collected at 3 months following completion of dental treatment. Data obtained was subjected to statistical analysis using Student's t-test. Results: The mean levels of salivary IgA was significantly reduced from 59.60 MUg/ml to 56.42 MUg/ml after dental treatment (P < 0.05). There was a significant reduction in the levels of salivary amylase from 115.78 MUg/ml to 113.33 MUg/ml (P < 0.001). Following dental treatment, salivary lactoferrin and lysozyme levels were significantly reduced from 3.76 MUg/ml and 10.62 MUg/ml to 3.44 MUg/ml and 10.27 MUg/ml, respectively (P < 0.001). Conclusions: Levels of salivary IgA, amylase, lactoferrin, and lysozyme were reduced significantly at 3 months following comprehensive dental treatment. PMID- 29326502 TI - Comparative Evaluation of Platelet-Rich Fibrin with Connective Tissue Grafts in the Treatment of Miller's Class I Gingival Recessions. AB - Background: One of the most common aesthetic problem encountered in the field of periodontology is gingival recession, which is, perceived by the patients as increase in length of teeth. The treatment of buccal gingival recession is a common requirement due to aesthetic concern or root sensitivity. This study was planned to evaluate the efficacy of PRF membrane compared to that of CTG in Miller's class I gingival recessions. Materials and Methods: 32 sites with Miller's Class I gingival recessions, out of which 16 sites received PRF (test) and 16 sites received CTG (control). Each patient had undergone an initial periodontal treatment, including oral hygiene instructions, plaque control, and scaling and root planing, followed by re-evaluation. All clinical recordings; recession height, recession width, clinical attachment level, height of keratinized tissue, thickness of keratinized tissue, healing index and pain perception, were performed immediately before surgery (baseline) and after 6 months interval following periodontal surgery. Results: In the test group, significant improvement was seen in terms CAL, REC-HT, REC-WD, HKT and TKT from baseline to 6 months. In the control group, only significant improvement seen was in REC-HT and TKT from baseline to 6 months. Comparison of both Healing Index and VAS score was done and it showed no significant difference between test and the control group except VAS at 1 week. Conclusion: Though CTG is a gold standard procedure, PRF can be used as an alternative procedure by keeping patient's comfort and recognition in mind. PMID- 29326503 TI - Impact of Dental Trauma on Quality of Life Among 11-14 Years Schoolchildren. AB - Background: Traumatic injuries are common dental problems in pediatric dentistry that may influence the children's quality of life. Aim: the aim of this study is to assess the impact of traumatic dental injuries (TDI) and oral health-related quality of life (OHRQoL) among Egyptian schoolchildren aged 11-14 years. Materials and Methods: A cross-sectional study was carried out involving a sample of 11700 schoolchildren from public and private schools of Mansoura city, Egypt. OHRQoL was assessed using Child Perceptions Questionnaire. Clinical examination included the presence and type of TDI, malocclusion status, and dental caries in anterior teeth (decayed, missing, and filled teeth). Results: The prevalence of TDI was 13.6%. Untreated TDI was more likely to have a negative impact on the children's daily living regarding pain, functional, emotional, and social aspect than treated injuries and control children. Pearson's correlation test indicated significant association between trauma and malocclusion and dental caries. Conclusion: Untreated dental injury has a negative impact on quality of life regarding social, functional, and emotional aspects. However, treated injured teeth appear to improve social and emotional aspects of the OHRQoL of school children, whereas functional limitations may continue because of the pulpal and periodontal effects of the injury. PMID- 29326505 TI - Influence of Intracanal Irrigants on Coronal Fracture Resistance of Endodontically Treated and Bleached Teeth: An In vitro Study. AB - Background: Irrigation has a key role in the success of endodontic treatment. Intracanal irrigant solutions have adverse effects on the physical properties of dentin. Aim: The present study aimed to evaluate the effect of different irrigation protocols on coronal fracture resistance of endodontically treated teeth undergoing bleaching treatment. Design and Materials and Methods: Access cavities were prepared in 120 maxillary premolars which were divided into two groups (n = 60) - Group A: nonbleached, Group B: bleached (B). Each group was subdivided into five subgroups based on irrigation protocol (n = 12); G1: normal saline (NS), G2: 2.5% sodium hypochlorite (NaOCl), G3: 10% citric acid (CA), G4: 17% ethylene diamine tetra acetic acid, and G5: NaOCl plus CA. In Group B, the teeth were bleached using 38% hydrogen peroxide and 20% carbamide peroxide gels as in-office and at-home bleaching techniques for 3 weeks. All the teeth were restored with composite resin, thermocycled, and incubated for 24 h. The specimens underwent fracture resistance tests. Data were analyzed with ANOVA, Tukey honestly significant difference test, t-test, and Chi-squared test (alpha =0.05). Results: T-test showed significant differences between each two corresponding subgroups (P < 0.0001). In Group A, NS demonstrated significantly higher fracture resistance compared to others; however, minimum fracture resistance recorded in G2. In Group B, the maximum fracture resistance was recorded in G1, with the minimum being recorded in G5. Samples irrigated with NaOCl and NaOCl plus CA exhibited significantly lower fracture resistance compared to NS subgroup (P < 0.05). Conclusions: Within the limitations of this study, it can be concluded that the irrigation protocol used during endodontic treatment with/without bleaching can affect the coronal fracture resistance. PMID- 29326504 TI - Oral Health-Related Quality of Life Following Third Molar Surgery in an African Population. AB - Introduction: Surgical extraction of impacted mandibular third molars is often associated with sequelae such as postoperative pain, facial edema, and limitation in mouth opening ability. These sequelae may result in changes in the patients' lifestyle and quality of life (QoL). Aim: The aim of this study was to evaluate the effect of surgical extraction of impacted mandibular third molars on patients' QoL in the immediate postoperative period (7 days). Materials and Methods: Ethical approval for this study was obtained from the Health Research and Ethics committee of the Lagos University Teaching Hospital. A total of 124 individuals with impacted mandibular third molars, who satisfied the inclusion criteria and consented to participate in this study, were included. The Oral Health Impact Profile-14 (OHIP-14) QoL questionnaire was used to assess QoL. QoL was assessed preoperatively (baseline) and on postoperative days (PODs) 1, 3, and 7. Maximal interincisal mouth opening, facial width, and pain were also reviewed at all evaluation points. Data analysis was done using the Statistical Package for Social Sciences (SPSS) for Windows (version 16.0, Chicago, IL, USA). Results: A total of 124 individuals were included in the final analysis. An age range of 18-51 years with a mean (+/-standard deviation) of 28.5 (7.4) years was observed. A male to female ratio of 1:1.5 was observed. The most frequently encountered type of impaction was the mesioangular impaction 51 (41.1%) and recurrent pericoronitis was the principal reason for extraction 53 (42.7%). The severity of the sequelae (pain, trismus, and facial edema) was maximal on the first POD. Patients' overall QoL deteriorated sharply on the first POD and subsequently improved. Conclusion: Surgical extraction of mandibular third molars is associated with worsening of patients' postoperative QoL in the immediate postoperative period. Prospective patients should be informed about this, and ways of reducing this untoward effect should be explored. PMID- 29326506 TI - The Bond Strength of Nanohybrid and Nanoceramic Composites to Feldspathic Porcelain. AB - Background: Porcelain fracture is the most important problem in fixed prosthetic restorations. The replacement of fractured restoraions isn't often prefer by patients and dentists. Intraoral repair of fractured porcelain is a big alternative for patient and dentist. For this reason, dentists try to improve different surface treatments to increase the bond strength between porcelain and repair materials such as composite resins. Aims: The aim of this study was to evaluate the shear bond strength (SBS) of nano-hybrid (Nh.com) and nano-ceramic composite resins (Nc.com) to this feldspathic porcelains (Vita and Ivoclar). Settings and Design: 120 ceramic disc were fabricated from feldspathic porcelain. Materials and Methods: The following surface treatment was applied on the ceramic surface: 1) Hydrofluoric acid+silane, 2) Air-abrasion+silane, 3) Air abrasion=Control group. Nh.com and Nc.com was placed on the porcelain surface. Half of the specimens were stored in 37 +/- 2oC distilled water and another half were subjected to thermocycling before SBS. The samples placed in an universal testing machine and applied shear force until seperation occured. Statistical Analysis Used: The data were analyzed by multi-way analysis of variance (ANOVA) and Duncan test (P <0.05). Results: The results show that Ivoclar and Vita had almost equal fracture values. Nh.com showed high bond strength than Nc.com. In the Ivoclar porcelain, hydrofluoric acid etching had highest fracture values than other surface treatments, and in the vita porcelain air-abrasion had a little difference from hydrofluoric acid etching. Conclusions: Different surface treatments show different effect on SBS between feldspathic porcelain and composite resins. PMID- 29326507 TI - Effect of Calcium Channel Blockers on Gingival Tissues in Hypertensive Patients in Lagos, Nigeria: A Pilot Study. AB - Background: Long-term treatment of common chronic cardiac conditions such as hypertension with calcium channel blockers (CCBs) has long been associated with gingival hyperplasia. This oral side effect may affect esthetics and function, yet often overlooked and therefore underreported among Nigerians. Aim: This study aimed to determine the association of CCBs with gingival overgrowth (GO) in hypertensive patients. Methods: This was a hospital-based, case-control study conducted among 116 hypertensive patients (58 CCB and 58 non-CCB age-matched controls) attending the medical outpatient clinic of a tertiary health institution in Lagos, Nigeria. Data collection tools included interviewer administered questionnaires and periodontal examination. Sociodemographic details, medical history, and periodontal indices (gingival index, plaque index, class of GO according to drug-induced GO [DIGO] Clinical Index) were recorded. Results: The mean age was 59.4 +/- 12.6 years, females representing 50.9%. In the CCB group, 39 (67.2%) participants were on amlodipine and 19 (32.8%) were on nifedipine. The mean duration of CCB use was 55.6 +/- 53 months. DIGO was higher in CCB (36.2%) than that in non-CCB participants (17.2%) (chi2 = 4.4, P = 0.036). The risk of GO was higher in CCB users (odds ratio [OR] 2.7, [95% confidence interval (CI)]: 1.1-6.5). Amlodipine users had higher DIGO (37.5%) than that of nifedipine users (21.1%) (OR 2.3, [95% CI]: 1.0-5.3). The predominant class of DIGO among the CCB users was Class 2 DIGO Clinical Index (90.5%). Conclusion: The study reveals that the risk of GO is nearly three times in CCB than that of non CCB users and twice higher in amlodipine than nifedipine users in Nigeria. PMID- 29326508 TI - Effect of Ultraviolet Irradiation on the Osseointegration of a Titanium Alloy with Bone. AB - Introduction: Attempt has been made to analyze the potential of titanium (Ti) alloy for osteointegration by the effect of surface photo functionalization in different aspects as follows: in Ringer's solution, in vitro cell growth, and in vivo study on rabbit. The present study was aimed to investigate the influence of ultraviolet (UV) light on surface topography, corrosion behavior, and bioactivity of indigenously manufactured samples of Ti alloy mini-implant. Materials and Methods: The study includes surface modification of Ti samples by UV treatment, corrosion testing of the specimens using Potentiostat (GAMRY System), qualitative examination of modified surface topography using scanning electron microscope, and cellular viability test on Ti alloy surface (3-(4,5-Dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide ASSAY). To find the effect of UV light on implant bone integration, biochemical test was performed on the femur of rabbits. Results and Discussion: Corrosion resistance of untreated Ti alloy in Ringer's solution was found to be less, whereas corrosion rate was more. Corrosion resistance of UV treated samples was found to increase significantly, thereby lowering the corrosion rate. Cell growth in UV-treated specimen was observed to be higher than that in untreated samples. It is important to mention that cell growth was significantly enhanced on samples which were UV treated for longer duration of time. Conclusions: There was a marked improvement in cell growth on UV-treated Ti alloy samples. Hence, it is expected that it would enhance the process of osseointegration of Ti with bone. Another important finding obtained was that the removal torque values of UV-treated implants were higher than that of untreated implants. The overall result reveals that UV treatment of implants does help us in speeding up the osseointegration process. PMID- 29326509 TI - A Radiographic Study of the Association between Apical Periodontitis and Technical Quality of Intraradicular Posts and Root Canal Fillings: A Cross sectional Study in Qassim Region, Saudi Arabia. AB - Objectives: This study evaluates the association between the apical periodontitis (AP) and quality of intraradicular posts and the quality of root fillings assessed radiographically in Qassim region, Saudi Arabia. Materials and Methods: Digital periapical radiographs of 327 teeth with post-retained restoration were retrieved randomly from the Qassim University screening clinic's digital archives and evaluated. The quality of the intraradicular post and root filling was evaluated according to the optimum criteria. The presence of AP was assessed based on the periapical index scoring system. The relation between the post technical quality, the quality of root filling, and AP was determined. The data were analyzed using Chi-square test and logistic regression. Results: AP was found in 22% of the investigated teeth. Adequate root fillings were found in 69% of roots, and 14% of these cases were associated with AP. In roots with root filling classified as inadequate, 38% had AP with a statistically significant association between the root filling length and the presence of AP (P < 0.001). The most frequently used posts were prefabricated metallic posts (57%). Teeth restored with cast posts and prefabricated metallic posts exhibited AP with a frequency of 42.3% and 25.4%, respectively, and teeth with nonmetallic posts had significantly fewer cases of AP (12.0%) with a statistically significant association between the post type and the presence of AP (P = 0.016). Conclusion: Both the quality of the root filling and the intraradicular post type were correlated significantly with the presence of AP. The technical quality of root fillings and intraradicular posts was adequate. Nevertheless, the use of threaded posts is still a common practice in this study population. PMID- 29326510 TI - Isolation and Typing of Streptococcus mutans and Streptococcus sobrinus from Caries-active Subjects. AB - Background: Streptococcus mutans and Streptococcus sobrinus are main etiological agents of dental caries. Aim: The aim of the study was to isolate, identify, characterize, and determine the minimum inhibitory concentration (MIC) of S. mutans and S. sobrinus from caries-active subjects. Materials and Methods: Sixty five plaque samples were collected from caries-active subjects aged between 35 and 44 years, processed and cultured on mitis salivarius bacitracin agar. All the bacterial isolates were subjected to morphotyping and the suspected colonies were identified by 16S rDNA sequencing. The S. mutans and S. sobrinus strains were characterized by biotyping and phylogenetic analysis. The MIC of ampicillin and erythromycin was determined by microtiter plate method. Results: Of the study population, 41 isolates displayed typical colony morphologies of S. mutans and S. sobrinus. The 16S rDNA sequencing results revealed that 36 isolates were S. mutans and 5 isolates were S. sobrinus. The biotyping of these isolates demonstrated three biotypes, namely, biotype I (n = 35), biotype III (n = 1), and biotype IV (n = 2). However, 3 isolates exhibited variant biotypes. The phylogenetic analysis revealed that the clinical strains of S. mutans and S. sobrinus clustered independently along with respective reference strains. The average MIC of ampicillin and erythromycin against S. mutans and S. sobrinus was 0.047 MUg/ml and 0.39 MUg/ml, respectively. Conclusion: The 16S rDNA sequencing was an impeccable method for S. mutans and S. sobrinus identification when compared with morphotyping and biotyping methods. The study also suggested that nonspecific bacteria might be involved in caries formation. PMID- 29326511 TI - Differential Diagnosis between Chronic versus Aggressive Periodontitis and Staging of Aggressive Periodontitis: A Cross-sectional Study. AB - Background: Differentiating between chronic periodontitis (CP) and aggressive periodontitis (AgP) is challenging. The aim of this study was to assess the variations in diagnosis between CP versus AgP and the staging of AgP based on the disease-staging index for AgP among periodontists, specialists in oral medicine, and general dental practitioners (GDPs). Materials and Methods: Fifteen cases diagnosed as either CP or AgP were included in a "case document" and sent electronically to 75 respondents. Case document included a detailed history with periodontal charting, clinical features, images, and radiographs for all the cases. Diagnosis and staging for the case (if diagnosed as AgP) were requested. A reordered case document (cases in a different sequence) was again sent to respondents after a gap of 1 month. Statistical analysis: Descriptive statistics including frequency and percentage were calculated. Pearson's Chi-square test was used to analyze the data collected. Results: For the "case document," 10.17% of the responses were different from those of the authors for diagnosis, whereas 4.48% of the responses were different from those of the authors for the staging of AgP. The agreement in the overall responses was in the range of 0.69-0.84, which was considered good. Comparison of the responses for diagnosis showed statistically significant (P = 0.009) difference between specialists in oral medicine and GDPs. Conclusions: Variations exist among respondents regarding the diagnosis of CP versus AgP. Staging of AgP based on the listed criteria showed low variations. PMID- 29326512 TI - Evaluating the Effect of Different Conditioning Agents on the Shear Bond Strength of Resin-Modified Glass Ionomers. AB - Aim of the Study: This study aims to evaluate the effects three different conditioning agents on the shear bond strength of resin-modified glass ionomers to human dentin. Materials and Methods: One hundred and twenty recently extracted, caries-free premolars and molars will be cleaned of debris and disinfected in a 0.5% solution of sodium hypochlorite and sterile water for 30 min. The occlusal surface of each tooth will be reduced using conventional model trimmer with water to produce the dentin surface. Then, three different resin modified glass ionomer cements (GICs) were triturated and mixed according to the manufacturer's instructions, 10 specimens will be made of each group. The excess restorative material will be removed from matrix band dentin interface with a sharp number 25 bard parker blade. Samples were shear tested with Instron universal testing machine with a crosshead speed of 0.5 mm/min. A shearing bar beveled to a 1 mm thick contact surface area will be placed at the junction of dentin and plastic band matrix. The load required for the failure will be recorded in pounds and converted to megapascals. Results: Statistical analysis was done with analysis of variance and Tukey's test. Ketac primer as conditioning agent along with Fuji II LC as restorative material had the highest shear bond value whereas intact smear layer which was unmodified dentin had the least value. Conclusion: Within the limitations of the present study, it can be concluded that surface conditioning of dentin resulted significantly higher bond strength than unconditioned dentin surfaces. Clinical Significance: Resin-modified glass ionomers have several advantages compared to chemically cured GICs. The advantages include command cure, ease of handling, improved physical properties, and esthetics. Resin.modified glass ionomers have been marketed as direct restorative materials for Class V lesions as well as liners, bases, and luting agents. Several conditioning agents have been evaluated to condition dentin before the application of conventional glass ionomers and resin-modified glass ionomers. These have mainly included polyacrylic acid, citric acid, phosphoric acid, and ethylenediamine tetra.acetic acid. Of late, manufactures have recommended other conditioners to replace polyacrylic acid which includes Ketac primer as one of the conditioning agents. PMID- 29326513 TI - An In vitro Comparison of Pushout Bond Strength of Resilon with MetaSEAL and AH Plus Sealers. AB - Aim: The aim of this study is to evaluate and compare the pushout bond strengths of Resilon with two different sealers: Resilon/MetaSEAL (methacrylate based) and Resilon/AH Plus (an epoxy resin-based sealer). Materials and Methods: Forty single canal anterior teeth were decoronated at cementoenamel junction and standardized to 10 +/- 1 mm length. Working length was determined followed by biomechanical preparation. Then, the specimens were randomly assigned into two groups of 20 teeth each based on the sealer used with Resilon. All canals were obturated using single-cone obturation technique. Root samples were prepared for pushout testing. The universal testing machine gave the debonding force for individual specimen. This was done for all the specimens. Statistical Analysis: This was done by using unpaired Student's t-test. Results: The roots filled with Resilon/MetaSEAL had higher bond strength (1.49 +/- 0.09 MPa) compared to Resilon/AH Plus (0.90 +/- 0.04 MPa) group. The difference in bond strength was statistically significant (P = 0.0000). Conclusion: Through this pushout bond strength test, it could be noted that MetaSEAL did appear to bond to the dentin and could be used as a potential endodontic sealer. PMID- 29326514 TI - Modified Angle's Classification for Primary Dentition. AB - Aim: This study aims to propose a modification of Angle's classification for primary dentition and to assess its applicability in children from Central India, Nagpur. Methods: Modification in Angle's classification has been proposed for application in primary dentition. Small roman numbers i/ii/iii are used for primary dentition notation to represent Angle's Class I/II/III molar relationships as in permanent dentition, respectively. To assess applicability of modified Angle's classification a cross-sectional preschool 2000 children population from central India; 3-6 years of age residing in Nagpur metropolitan city of Maharashtra state were selected randomly as per the inclusion and exclusion criteria. Results: Majority 93.35% children were found to have bilateral Class i followed by 2.5% bilateral Class ii and 0.2% bilateral half cusp Class iii molar relationships as per the modified Angle's classification for primary dentition. About 3.75% children had various combinations of Class ii relationships and 0.2% children were having Class iii subdivision relationship. Conclusions: Modification of Angle's classification for application in primary dentition has been proposed. A cross-sectional investigation using new classification revealed various 6.25% Class ii and 0.4% Class iii molar relationships cases in preschool children population in a metropolitan city of Nagpur. Application of the modified Angle's classification to other population groups is warranted to validate its routine application in clinical pediatric dentistry. PMID- 29326515 TI - Scanning Electron Microscopic Evaluation of Efficacy of 17% Ethylenediaminetetraacetic Acid and Chitosan for Smear Layer Removal with Ultrasonics: An In vitro Study. AB - Introduction: The main aim of root canal treatment is cleaning, shaping and then obturating three dimensionally to prevent reinfection. This includes chemicomechanical cleansing by instrumentation and the use of irrigating solutions. Therefore, the purpose of this study was to compare the smear layer removal from root canal dentine subjected to two root canal irrigants, 17% EDTA and 0.2% Chitosan, a new irrigant using Scanning Electron Microscope. Methodology: 40 single rooted premolars were decoronated followed by instrumentation with I Race files and intermediate irrigation with 3% sodium hypochlorite and activation with ultrasonics. Then the samples were longitudinally sectioned and place in the respective test solutions and their controls for 5 minutes. Scanning Electron Microscopic evaluation was further carried out. Results: The results of the present study indicates that the Chitosan which was proved effective in removing smear layer. Conclusion: A moderate concentration of 0.2% chitosan removes the smear layer with greater efficiency. PMID- 29326516 TI - Indirect Sinus Lift Done Using "Autogenous Core Lift" Technique in Combination with Alloplastic Phosphosilicate Putty in Atrophic Maxillary Posterior Region: A Clinical Report with 1-Year Follow-Up. AB - Pneumatization of the sinus is a common occurrence after extraction of maxillary posterior teeth. Implant procedures require a clinically acceptable level of bone to be present for implants to be placed in function. Residual bone with >4 mm of height can be managed using the indirect sinus lift procedure, whereas bone height <4 mm requires a direct sinus lift using lateral window approach. This clinical case report describes the use of autogenous core used to lift the membrane in conjunction with calcium phosphosilicate putty using minimal armamentarium, thereby avoiding the associated morbidity and complications associated with a direct sinus lift procedure. PMID- 29326517 TI - 18p Deletion Syndrome: Case Report with Clinical Consideration and Management. AB - 18p deletion syndrome is characterized by the deletion of short arm of chromosome 18. Presentation of this syndrome is quite variable with dysmorphic features, growth deficiencies, and mental retardation with poor verbal performance. Few patients even fail to thrive when malformations involving the heart and brain are severe. In the present article, we report an isolated case of 18p deletion in a 23-year-old female who for the first time reported to the hospital for dental problems. The patient was short statured with mental retardation and craniofacial, skeletal, dental, and endocrinal abnormalities. Such presentation warrants prompt diagnosis for effective management. Furthermore, genetic counseling for such patients and their families should be considered as a part of treatment itself. PMID- 29326518 TI - Toothpaste Use Protocol with Dental Bleaching for a Conservative Treatment: Case Reports. AB - In-office bleaching is a treatment based on products that contain hydrogen peroxide (HP) while demonstrating whitening effectiveness. HP could promote alterations to surface morphologies and properties of dental tissues. The objective was describe a toothpaste protocol associated to bleaching therapy to promote a safer approach. Patient 1 (male) and Patient 2 (female) were attended, and toothbrushing (twice a day) with a dentifrice containing bioactive glass (BG) (NovaMinTM) and fluoride was indicated before and during the treatment. Three bleaching sessions were made in cases, at intervals of 7 days. The gels used were 35% HP (Patient 1) and 35% HP supplied with calcium (Patient 2). The effectiveness of bleaching treatment was observed in both cases (Vita scale), with an esthetic self-acceptance. Sensitivity associated with the procedure was not reported. The indication of BG-based toothpaste is relevant in relation to enamel properties and did not affect the whitening effectiveness of dental bleaching. PMID- 29326519 TI - Tetanus: A Report of Two Cases and Review of Literature - A Continuing Threat to the Elderly in Japan. AB - Tetanus has become rare in industrialized countries, largely due to the effectiveness of immunization. However, the elderly are susceptible to tetanus because many have not received primary immunization; the incidence of tetanus in Japan is still 120 cases/year. The initial symptoms of tetanus, such as trismus and dysphagia, are observed in the orofacial region. However, because of the disease's rarity, the clinician may be unfamiliar with the clinical presentation and may not suspect tetanus. We report two cases of elderly patients with generalized tetanus. Both patients presented trismus and/or dysphagia and consulted three different departments before the diagnosis of tetanus. Japanese clinicians will encounter tetanus more frequently than practitioners in other countries. Dental surgeons should be familiar with the clinical appearance of tetanus and should consider this disease in a nonimmunized patient presenting as an atypical case of trismus and dysphagia. PMID- 29326520 TI - The So-called Garre's Osteomyelitis of Jaws and the Pivotal Utility of Computed Tomography Scan. AB - The present paper draw the attention of clinicians to investigate multiple slices of the computed tomography (CT) scan looking for a safe diagnosis of the so called Garre's osteomyelitis (GO) of jaws, a not uncommon disease characterized by astonishing bone growth. We report a case involving the left mandible of a 12 year-old girl presenting with a bony enlargement at left mandible. Initial examination revealed carious process of tooth 36 with radiographic apical rarefaction. However, we need to take care with this diagnosis because other aggressive diseases may cause bone enlargement mimicking GO. We observed here that careful examination of CT slices must be elucidative. In the present case, we observed the formation of a hypodense channel between periapical disease and the bone growth, through CT, thus supporting the pathophysiologic conditions for GO and allowing a safer decision to make the intervention restricted to tooth. PMID- 29326521 TI - Surgical Management of Large Radicular Cyst Associated with Mandibular Deciduous Molar Using Platelet-rich Fibrin Augmentation: A Rare Case Report. AB - Radicular cysts arising from deciduous teeth are rare and usually cause a large bony defect. Autologous platelet-rich fibrin (PRF) is an easily available healing biomaterial in oral surgical defect with the new perspective of accelerated healing of a large bony defect. The present case is of unusually large radicular associated with neglected carious mandibular deciduous second molar in 10-year old girl and its surgical management with PRF augmentation as a healing biomaterial in the bony defect. One-year follow-up showed uneventful healing and eruption of succedaneous tooth. Healing was relatively faster and facilitated by PRF placement. Furthermore, the importance of anticipatory guidance about the treatment of diseased primary teeth and their preservation gets highlighted. PMID- 29326522 TI - Fragile X Syndrome: A Rare Case Report with Unusual Oral Features. AB - Fragile X syndrome (FXS) is a rare variant of special health-care need demonstrating delayed developmental milestones and associated with intellectual and emotional disabilities ranging from learning problem to mental retardation. The syndrome is usually not diagnosed until 8-9 years of age since the clinical manifestations of the syndrome are greatly attenuated in childhood. The physical characteristics such as facial features, hyperactivity, attention deficit, autistic behavior, and macroorchidism are quite evident in younger age group. The most typical orofacial characteristics associated with children suffering from FXS are mandibular prominence, ogival, and cleft palate. Till date, very few dental literatures have been reported regarding the association of FXS with orodental anomalies. Here, we report a rare case of 14-year-old boy suffering from FXS with typical orofacial characteristics, multiple supernumerary teeth, and dental caries. PMID- 29326523 TI - Glandular Odontogenic Cyst: Case Series. AB - Glandular odontogenic cyst (GOC) is an uncommon and aggressive jaw cyst with a high recurrence rate. It may grow into a large size. Diagnosis of the cyst is challenging since it may be confused with some other jaw cysts and malignancies. Treatment methods vary from conservative surgery to radical bone resection. In this case series, we briefly present five cases of GOC diagnosed and treated at our clinic. Thorough histopathological diagnosis and long-term follow-up are necessary in patients with GOC. PMID- 29326524 TI - Orthodontic Camouflage: A Treatment Option - A Clinical Case Report. AB - : Orthodontic camouflage provides an alternative treatment for angle III malocclusion since patients with limited economic resources cannot opt for orthognathic surgery, it being clear that correction will be achieved at the dental level and not at the bone complex. OBJECTIVE: To determine an alternative treatment for patients who do not have the possibility of having orthognathic surgery. CLINICAL CASE: A 13-year-old female patient, dolico facial biotype with slightly concave profile, with Class III Skeletal by mandibular prognathism, anterior crossbite, anterior diastema, and large mandibular body, molar class, and canine III. Alexander technique brackets were placed; premolar extraction was not planned. Once the case was completed, the correction of the anterior crossbite was achieved, thanks to the use of the spaces that existed at the beginning of the treatment and also that a correct distalization of canines and retraction of the lower anterior segment were performed. PMID- 29326525 TI - Mucormycosis in a Diabetic Patient: A Case Report with an Insight into Its Pathophysiology. AB - Mucormycosis is one of the most rapidly progressing and fulminant forms of fungal infection which usually begins in the nose and paranasal sinuses following inhalation of fungal spores. It is caused by organisms of the subphylum Mucormycotina, including genera as Absidia, Mucor, Rhizomucor, and Rhizopus. The incidence of mucormycosis is approximately 1.7 cases per 1,000,000 inhabitants per year. Mucormycosis affecting the maxilla is rare because of rich blood vessel supply of maxillofacial areas although more virulent fungi such as Mucor can overcome this difficulty. The common form of this infection is seen in the rhinomaxillary region and in patients with immunocompromised state such as diabetes. Hence, early diagnosis of this potentially life-threatening disease and prompt treatment is of prime importance in reducing the mortality rate. PMID- 29326526 TI - Localized Gingival Overgrowths: A Report of Six Cases. AB - Localized gingival overgrowths are commonly encountered in our day-to-day clinical practice and often present a diagnostic dilemma to the clinicians. These lesions vary depending on the location, site, extent, histology, and/or etiopathology. Although most of the localized gingival enlargements represent the reactive lesion to plaque accumulation, the differential diagnosis ranges from peripheral fibroma to pyogenic granuloma to peripheral fibroma with ossification and/or calcification, peripheral giant cell granuloma, etc., Even the peripheral ameloblastoma may present clinically as a mere localized gingival enlargement. Therefore, proper histopathological diagnosis along with biopsy is necessary to effectively manage these lesions and to reduce their propensity for recurrence. PMID- 29326528 TI - Taking a Glance at Anterior Crossbite in Children: Case Series. AB - Anterior crossbite is a malocclusion that takes place for various reasons, leads to major problems and may be fixed using various methods. This study aimed to provide an update regarding the methods used for anterior crossbite treatment presenting treatments of the removable active acrylic appliance with bite plane. Clinical examination of aged 9-15, seven healthy children who visited our clinic due to crowding and esthetic displeasure in anterior teeth indicated that one or more permanent maxillar incisor teeth were positioned behind of permanent mandibular incisor teeth. After clinical-radiographical examinations, removable active acrylic appliances with bite plane were decided to apply. Patients with adapted-activated appliances were called to follow-ups once a week. Treatments continued 4-6 weeks in mixed dentition, 7-8 weeks in permanent dentition. In choosing the method, advantages-disadvantages, indications-contraindications of methods should be discussed. Correct indication and suitable motivation are important for the success of anterior crossbite treatment. PMID- 29326527 TI - Treatment of a Class II Malocclusion with Deep Overbite in an Adult Patient Using Intermaxillary Elastics and Spee Curve Controlling with Reverse and Accentuated Archwires. AB - This paper aimed to describe the orthodontic treatment of an adult patient with the following characteristics: asymmetric Class II malocclusion, left subdivision, mandibular midline shifted to the left, mild mandibular anterior crowding, excessive overbite, 4-mm overjet, and a brachycephalic facial pattern. A 31-year-old male patient, treated with fixed preadjusted appliance with Roth prescription, with leveling and alignment NiTi archwire sequence. To correct the asymmetric Class II malocclusion, midline shift as well the overjet and overbite, intermaxillary elastics and accentuated and reversed stainless steel archwires were used, respectively. The posttreatment results showed a Class I molar relationship, as well the overjet and overbite correction. These results could be achieved due to a correct treatment plan and so to the patient cooperation. PMID- 29326530 TI - Pesticide Poisonings in Low- and Middle-Income Countries. AB - Aims and scope This editorial is an introduction to the papers making up the special issue on 'pesticide poisonings in low- and middle income countries'. PMID- 29326529 TI - A Match-Pair Analysis of Open Versus Laparoscopic Liver Surgery. AB - Background and Objectives: In addition to general advantages of laparoscopic over open surgery, such as better cosmesis and faster recovery, laparoscopic liver surgery offers specific advantages. Improved liver function and potentially earlier postoperative oncologic treatment are suggested by the literature as benefits of laparoscopic over open liver surgery. The purpose of this analysis was to analyze the outcomes of laparoscopic liver surgery in our department. Methods: All laparoscopic liver resections (LLRs) performed from January 2011 through July 2016 were identified from the institutional database and matched 1:2 to open liver resections (OLRs). Data were analyzed regarding perioperative outcome, and significance was set at P < .05. Results: Of 1525 liver resections, 120 patients were included in this analysis. Forty resections were performed laparoscopically. Patients in the LLR group more often had benign tumors. No patient died after LLR, but 2 required conversion to open surgery (5%) because of bleeding. Blood loss (200 vs 500 mL, P < .001) was less and hospital stay (6 vs. 7 days, P = .001) shorter after LLR. Iwate score, operating time, and the size of the resection margins did not differ between the groups. Iwate score correlated with operative time (P = .027). Conclusions: Laparoscopic liver surgery was safe, and several advantages over open surgery were confirmed in our series. PMID- 29326531 TI - Medial Pivot in Total Knee Arthroplasty: Literature Review and Our First Experience. AB - Background: Traditional total knee implants designs, usually, are not able to reproduce the physiological kinematics of the knee, leaving almost 20% of the patients, those who underwent a total knee arthroplasty (TKA), not fully satisfied. Modern inserts are nowadays designed with a fully congruent medial compartment to reproduce the normal medial pivoting biomechanics of the knee. The aim of this article was to evaluate preliminary clinical improvement using the Medial Congruent (MC) insert as specific level of constraint. Materials and methods: A total of 10 consecutive patients have been enrolled in this study and treated using an MC tibial polyethylene insert. The Oxford Knee Score (OKS) and the Knee Society Score (KSS) have been assessed preoperatively and at 3-month, 6 month, and 1-year follow-up (FU) and used as validated measurements to evaluate early clinical improvements. Postoperative radiological examination was reviewed looking for radiolucent lines or loosening of the components. Results: Average improvement in OKS was from 19.5 to 41.2, whereas KSS improved with an average score from 64.7 preoperatively to 167.5 at the final FU showing good to excellent results in 95% of the treated knees. Evaluating the range of motion, the average maximum active movement was 124 degrees and none of the patients needing for a revision surgery or manipulation under anesthesia. No complications were observed at the final FU as septic or aseptic loosening or vascular or neurologic injury. Discussion and conclusions: Medial Congruent insert showed good to excellent clinical results at 1-year FU. Range of motion and subjective outcomes were satisfying and comparable with results obtained in literature using traditional TKA design. PMID- 29326532 TI - Rheological Properties of Commercially Available Hyaluronic Acid Products in the United States for the Treatment of Osteoarthritis Knee Pain. AB - Objective: The inconsistent results within the current literature regarding the efficacy of intra-articular-hyaluronic acid (IA-HA) for the treatment of knee osteoarthritis (OA) have been suggested to be due to intrinsic differences between individual HA products. The purpose of this investigation is to define the rheological differences between currently available HA products in the United States at the time of this study for the treatment of knee OA, which will help elaborate on the appropriateness of classifying HA products as a class opposed to as individual agents. Methods: The rheological parameters for Euflexxa, Orthovisc, Supartz, Monovisc, Synvisc, Synvisc-One, Gel-One, and Hyalgan were obtained with a TA AR 2000 EX Rheometer with a cone-plate geometry (40-mm plate diameter and a 2 degrees cone angle) at room temperature. Results: The bulk rheological parameters of the different products suggest molecular structures traversing the range of dilute solution (Hyalgan, Supartz), semidilute solution (Euflexxa, Orthovisc), entangled solutions (Monovisc, Synvisc, Synvisc-One), and even gel-like (Gel-One) behavior. Conclusions: Due to the differences in rheological properties between IA-HA products, the universal assessment of these products as a class may not be appropriate. Instead, it may be more appropriate to assess each product individually. Future research should aim to link these differences in rheological properties to the differences in clinical efficacy seen across these IA-HA products. PMID- 29326533 TI - Manually Steerable Catheter With Improved Agility. AB - Purpose: A prototype steerable catheter was designed for endovascular procedures. This technical pilot study reports the initial experience using the catheter for cannulation of visceral arteries. Technique: The 7F catheter was manually steerable with operator control handle for bending and rotation of the tip. The maximum bending angle was approximately 90 degrees and full 360 degrees rotation of the tip was supported. The study involved 1 pig with 4 designated target arteries: the left and right renal arteries, the superior mesenteric artery, and the celiac trunk. Fluoroscopy with 3-dimensional (3D) overlay showing the ostia from preoperative computed tomography angiography was used for image guidance. The cannulation was considered successful if the guidewire was placed well inside the target artery. In addition to evaluating cannulation success, procedure time and associated radiation doses were recorded. The procedure was performed twice with 2 different operators. Conclusions: Both operators successfully reached all 4 target arteries, demonstrating the feasibility of the steerable catheter for endovascular cannulation of visceral arteries. No contrast medium was used, and median radiation dose was 4.5 mGy per cannulation. An average of approximately 2 minutes was used per cannulation. This study motivates further testing in a more comprehensive study to evaluate reproducibility in several animals and with inclusion of more operators. Further development by integrating the new catheter tool in a navigation system is also an interesting next step, combining fine control of catheter tip movements and 3D image guidance without ionizing radiation. PMID- 29326535 TI - Very Rare Presentation of Cerebrovascular Accident in 20-Year-Old Man With Familial Mediterranean Fever-Case Report. AB - Familial Mediterranean fever (FMF) is characterized by recurrent episodes of fever accompanied by serosal, synovial, or cutaneous inflammation. The central nervous system (CNS) is rarely involved in FMF. The CNS involvement includes demyelinating lesions, posterior reversible encephalopathy syndrome, pseudotumor cerebri, optic neuritis, and cerebral vasculitis. Here, we present a 20-year-old man, a known case of FMF with abrupt left-sided hemiparesis. Brain magnetic resonance imaging revealed right periventricular infarction. Normal echocardiography ruled out cardioembolism, and thrombophilia workup was negative. Therefore, FMF-induced cerebrovascular accident was considered. Although rare, CNS involvement as a result of FMF disease should also be considered when encountering patients with FMF and CNS manifestations. PMID- 29326536 TI - First Time Isolation of Mycobacterium hassiacum From a Respiratory Sample. AB - We describe the first isolation of Mycobacterium hassiacum, a rapid-growing, partial acid-resistant mycobacterium, in a respiratory specimen from a patient with exacerbated chronic obstructive pulmonary disease. To provide therapeutic recommendation for future cases, antibiotic susceptibility testing of 3 clinical isolates was performed by broth microdilution. All strains tested showed susceptibility to clarithromycin, imipenem, ciprofloxacin, and doxycycline. The role of M hassiacum as a respiratory pathogen remains unclear and needs to be evaluated by future reports. PMID- 29326534 TI - Is Exercise Training Appropriate for Patients With Advanced Heart Failure Receiving Continuous Inotropic Infusion? A Review. AB - Exercise-based rehabilitation programs have been reported to have beneficial effects for patients with heart failure. However, there is little evidence about whether this is the case in patients with more severe heart failure. In particular, there is a question in the clinical setting whether patients with advanced heart failure and continuous inotropic infusion should be prescribed exercise training. In contrast, many studies conclude that prolonged immobility associated with heart failure profoundly impairs physical function and promotes muscle wasting that could further hasten the course of heart failure. By contrast, exercise training has various effects not only in improving exercise capacity but also on vascular function, skeletal muscle, and autonomic balance. In this review, we summarize the effectiveness and discuss methods of exercise training in patients with advanced heart failure receiving continuous inotropic agents such as dobutamine. PMID- 29326537 TI - Total Ossicular Replacement Prosthesis: A New Fat Interposition Technique. AB - Objective: To compare audiometric results between the standard total ossicular replacement prosthesis (TORP-S) and a new fat interposition total ossicular replacement prosthesis (TORP-F) in pediatric and adult patients and to assess the complication and the undesirable outcome. Study design: This is a retrospective study. Methods: This study included 104 patients who had undergone titanium implants with TORP-F and 54 patients who had undergone the procedure with TORP-S between 2008 and 2013 in our tertiary care centers. The new technique consists of interposing a fat graft between the 4 legs of the universal titanium prosthesis (Medtronic Xomed Inc, Jacksonville, FL, USA) to provide a more stable TORP in the ovale window niche. Normally, this prosthesis is designed to fit on the stapes' head as a partial ossicular replacement prosthesis. Results: The postoperative air-bone gap less than 25 dB for the combined cohort was 69.2% and 41.7% for the TORP-F and the TORP-S groups, respectively. The mean follow-up was 17 months postoperatively. By stratifying data, the pediatric cohort shows 56.5% in the TORP-F group (n = 52) compared with 40% in the TORP-S group (n = 29). However, the adult cohort shows 79.3% in the TORP-F group (n = 52) compared with 43.75% in the TORP-S group (n = 25). These improvements in hearing were statistically significant. There were no statistically significant differences in the speech discrimination scores. The only undesirable outcome that was statistically different between the 2 groups was the prosthesis displacement: 7% in the TORP-F group compared with 19% in the TORP-S group (P = .03). Conclusions: The interposition of a fat graft between the legs of the titanium implants (TORP-F) provides superior hearing results compared with a standard procedure (TORP-S) in pediatric and adult populations because of its better stability in the oval window niche. PMID- 29326538 TI - Type 2 Diabetes Genetic Risk Scores Are Associated With Increased Type 2 Diabetes Risk Among African Americans by Cardiometabolic Status. AB - The relationship between genetic risk variants associated with glucose homeostasis and type 2 diabetes risk has yet to be fully explored in African American populations. We pooled data from 4 prospective studies including 4622 African Americans to assess whether beta-cell dysfunction (BCD) and/or insulin resistance (IR) genetic variants were associated with increased type 2 diabetes risk. The BCD genetic risk score (GRS) and combined BCD/IR GRS were significantly associated with increased type 2 diabetes risk. In cardiometabolic-stratified models, the BCD and IR GRS were associated with increased type 2 diabetes risk among 5 cardiometabolic strata: 3 clinically healthy strata and 2 clinically unhealthy strata. Genetic risk scores related to BCD and IR were associated with increased risk of type 2 diabetes in African Americans. Notably, the GRSs were significant predictors of type 2 diabetes among individuals in clinically normal ranges of cardiometabolic traits. PMID- 29326540 TI - The contribution of differences in adiposity to educational disparities in mortality in the United States. AB - BACKGROUND: There are large differences in life expectancy by educational attainment in the United States. Previous research has found obesity's contribution to these differences to be small. Those findings may be sensitive to how obesity is estimated. METHODS: This analysis uses discrete-time logistic regressions with data from the National Health and Nutrition Examination Survey (NHANES), pooled from 1988 to 1994 and 1999 to 2010, to estimate the contribution of differences in adiposity, or body fat, to educational differences in mortality. I show that results depend upon the measure of adiposity used: body mass index (BMI) at the time of survey or lifetime maximum BMI. RESULTS: College graduates were less likely than high school graduates to be obese at the time of survey (25% vs. 34.6%, respectively) and were also less likely to have ever been obese (35.7% vs. 49.4%, respectively). Lifetime maximum BMI performed better than BMI at the time of survey in predicting mortality using criteria for model selection. Differences in maximum BMI were associated with between 10.3% and 12% of mortality differences between college graduates and all others, compared to between 3.3% and 4.6% for BMI at the time of survey. Among nonsmokers, between 18.4% and 27.6% of mortality differences between college graduates and all others were associated with differences in maximum BMI. CONTRIBUTION: Adiposity is an overlooked contributor to educational differences in mortality. Previous findings that obesity does not contribute to educational disparities were based on BMI at the time of survey, which is less informative than maximum BMI. The contribution of adiposity to educational mortality differences will likely grow as smoking prevalence declines. Health surveys should collect information on weight history. PMID- 29326539 TI - Microvascular Outcomes of Pediatric-Onset Type 1 Diabetes Mellitus: A Single Center Observational Case Reviews in Sana'a, Yemen. AB - Microvascular complications of pediatric-onset type 1 diabetes are common in low income countries. In this study, we aimed at reviewing microvascular outcomes in 6 cases with type 1 diabetes over 14 to 31 years of follow-up. Severe proliferative diabetic retinopathy (PDR) and/or diabetic macular edema (maculopathy) (DME) and overt diabetic nephropathy (macroalbuminuria) were seen among 4 of 6 patients, whereas severe diabetic peripheral neuropathy with Charcot neuroarthropathy was seen in 1 patient only, who had the longest duration of follow-up. The weighted mean (SD) (95% confidence interval) hemoglobin A1c was 8.9 (1.6) (8.4-9.4)% [74 (17) (68-80) mmol/mol] for PDR/DME and 8.6 (1.7) (8.0 9.0)% [71 (19) (65-77) mmol/mol] for macroalbuminuria. Thyroid autoimmunity was positive in 3 patients with overt hypothyroidism in 2 of them. Worse microvascular outcomes among these cases might be attributed to poor glycemic control, lack of knowledge, and limited financial resources. PMID- 29326541 TI - Assessing the Biological Safety Profession's Evaluation and Control of Risks Associated with the Field Collection of Potentially Infectious Specimens. AB - Because the origins of the biological safety profession are rooted in the control and prevention of laboratory-associated infections, the vocation focuses primarily on the safe handling of specimens within the laboratory. But in many cases, the specimens and samples handled in the lab are originally collected in the field where a broader set of possible exposure considerations may be present, each with varying degrees of controllability. The failure to adequately control the risks associated with collecting biological specimens in the field may result in illness or injury, and could have a direct impact on laboratory safety, if infectious specimens were packaged or transported inappropriately, for example. This study developed a web-based survey distributed to practicing biological safety professionals to determine the prevalence of and extent to which biological safety programs consider and evaluate field collection activities. In cases where such issues were considered, the data collected characterize the types of controls and methods of oversight at the institutional level that are employed. Sixty-one percent (61%) of the survey respondents indicated that research involving the field collection of biological specimens is conducted at their institutions. A majority (79%) of these field collection activities occur at academic institutions. Twenty-seven percent (27%) of respondents indicated that their safety committees do not consider issues related to biological specimens collected in the field, and only 25% with an oversight committee charged to review field collection protocols have generated a field research specific risk assessment form to facilitate the assembly of pertinent information for a project risk assessment review. The results also indicated that most biosafety professionals (73% overall; 71% from institutions conducting field collection activities) have not been formally trained on the topic, but many (64% overall; 87% from institutions conducting field collection activities) indicated that training on field research safety issues would be helpful, and even more (71% overall; 93% from institutions conducting field collection activities) would consider participation in such a training course. Results obtained from this study can be used to develop a field research safety toolkit and associated training curricula specifically targeted to biological safety professionals. PMID- 29326543 TI - Aging Induces Changes in the Somatic Nerve and Postsynaptic Component without Any Alterations in Skeletal Muscles Morphology and Capacity to Carry Load of Wistar Rats. AB - The present study aimed to analyze the morphology of the peripheral nerve, postsynaptic compartment, skeletal muscles and weight-bearing capacity of Wistar rats at specific ages. Twenty rats were divided into groups: 10 months-old (ADULT) and 24 months-old (OLD). After euthanasia, we prepared and analyzed the tibial nerve using transmission electron microscopy and the soleus and plantaris muscles for cytofluorescence and histochemistry. For the comparison of the results between groups we used dependent and independent Student's t-test with level of significance set at p <= 0.05. For the tibial nerve, the OLD group presented the following alterations compared to the ADULT group: larger area and diameter of both myelinated fibers and axons, smaller area occupied by myelinated and unmyelinated axons, lower numerical density of myelinated fibers, and fewer myelinated fibers with normal morphology. Both aged soleus and plantaris end plate showed greater total perimeter, stained perimeter, total area and stained area compared to ADULT group (p < 0.05). Yet, aged soleus end-plate presented greater dispersion than ADULT samples (p < 0.05). For the morphology of soleus and plantaris muscles, density of the interstitial volume was greater in the OLD group (p < 0.05). No statistical difference was found between groups in the weight-bearing tests. The results of the present study demonstrated that the aging process induces changes in the peripheral nerve and postsynaptic compartment without any change in skeletal muscles and ability to carry load in Wistar rats. PMID- 29326542 TI - Current Advances and Limitations in Modeling ALS/FTD in a Dish Using Induced Pluripotent Stem Cells. AB - Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are two age dependent multifactorial neurodegenerative disorders, which are typically characterized by the selective death of motor neurons and cerebral cortex neurons, respectively. These two diseases share many clinical, genetic and pathological aspects. During the past decade, cell reprogramming technologies enabled researchers to generate human induced pluripotent stem cells (iPSCs) from somatic cells. This resulted in the unique opportunity to obtain specific neuronal and non-neuronal cell types from patients which could be used for basic research. Moreover, these in vitro models can mimic not only the familial forms of ALS/FTD, but also sporadic cases without known genetic cause. At present, there have been extensive technical advances in the generation of iPSCs, as well as in the differentiation procedures to obtain iPSC-derived motor neurons, cortical neurons and non-neuronal cells. The major challenge at this moment is to determine whether these iPSC-derived cells show relevant phenotypes that recapitulate complex diseases. In this review, we will summarize the work related to iPSC models of ALS and FTD. In addition, we will discuss potential drawbacks and solutions for establishing more trustworthy iPSC models for both ALS and FTD. PMID- 29326545 TI - Apolipoprotein Eepsilon4: A Biomarker for Executive Dysfunction among Parkinson's Disease Patients with Mild Cognitive Impairment. AB - Background: Cognitive impairment is prevalent in Parkinson's disease (PD), affecting 15-20% of patients at diagnosis. alpha-synuclein expression and genetic polymorphisms of Apolipoprotein E (ApoE) have been associated with the presence of cognitive impairment in PD although data have been inconsistent. Objectives: To determine the prevalence of cognitive impairment in patients with PD using Montreal Cognitive Assessment (MoCA), Comprehensive Trail Making Test (CTMT) and Parkinson's disease-cognitive rating scale (PDCRS), and its association with plasma alpha-synuclein and ApoE genetic polymorphisms. Methods: This was across sectional study involving 46 PD patients. Patients were evaluated using Montreal cognitive assessment test (MoCA), and detailed neuropsychological tests. The Parkinson's disease cognitive rating scale (PDCRS) was used for cognitive function and comprehensive trail making test (CTMT) for executive function. Blood was drawn for plasma alpha-synuclein measurements and ApoE genetic analysis. ApoE polymorphism was detected using MutaGELAPoE from ImmunDiagnostik. Plasma alpha synuclein was detected using the ELISA Technique (USCN Life Science Inc.) according to the standard protocol. Results: Based on MoCA, 26 (56.5%) patients had mild cognitive impairment (PD-MCI) and 20 (43.5%) had normal cognition (PD NC). Based on the PDCRS, 18 (39.1%) had normal cognition (PDCRS-NC), 17 (37%) had mild cognitive impairment (PDCRS-MCI), and 11 (23.9%) had dementia (PDCRS-PDD). In the PDCRS-MCI group, 5 (25%) patients were from PD-NC group and all PDCRS-PDD patients were from PD-MCI group. CTMT scores were significantly different between patients with MCI and normal cognition on MoCA (p = 0.003). Twenty one patients (72.4%) with executive dysfunction were from the PD-MCI group; 17 (77.3%) with severe executive dysfunction and 4 (57.1%) had mild to moderate executive dysfunction. There were no differences in the plasma alpha-synuclein concentration between the presence or types of cognitive impairment based on MoCA, PDCRS, and CTMT. TheApoEe4 allele carrier frequency was significantly higher in patients with executive dysfunction (p = 0.014). Conclusion: MCI was prevalent in our PD population. PDCRS appeared to be more discriminatory in detecting MCI and PDD than MoCA. Plasma alpha-synuclein level was not associated with presence nor type of cognitive impairment, but the ApoEe4 allele carrier status was significantly associated with executive dysfunction in PD. PMID- 29326544 TI - Unraveling the Role of RNA Mediated Toxicity of C9orf72 Repeats in C9-FTD/ALS. AB - The most frequent genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) is intronic hexanucleotide (G4C2) repeat expansions (HRE) in the C9orf72 gene. The non-exclusive pathogenic mechanisms by which C9orf72 repeat expansions contribute to these neurological disorders include loss of C9orf72 function and gain-of-function determined by toxic RNA molecules and dipeptides repeats protein toxicity. The expanded repeats are transcribed bidirectionally and forms RNA foci in the central nervous system, and sequester key RNA-binding proteins (RBPs) leading to impairment in RNA processing events. Many studies report widespread transcriptome changes in ALS carrying a C9orf72 repeat expansion. Here we review the contribution of RNA foci interaction with RBPs as well as transcriptome changes involved in the pathogenesis of C9orf72- associated FTD/ALS. These informations are essential to elucidate the pathology and therapeutic intervention of ALS and/or FTD. PMID- 29326546 TI - NODDI-DTI: Estimating Neurite Orientation and Dispersion Parameters from a Diffusion Tensor in Healthy White Matter. AB - The NODDI-DTI signal model is a modification of the NODDI signal model that formally allows interpretation of standard single-shell DTI data in terms of biophysical parameters in healthy human white matter (WM). The NODDI-DTI signal model contains no CSF compartment, restricting application to voxels without CSF partial-volume contamination. This modification allowed derivation of analytical relations between parameters representing axon density and dispersion, and DTI invariants (MD and FA) from the NODDI-DTI signal model. These relations formally allow extraction of biophysical parameters from DTI data. NODDI-DTI parameters were estimated by applying the proposed analytical relations to DTI parameters estimated from the first shell of data, and compared to parameters estimated by fitting the NODDI-DTI model to both shells of data (reference dataset) in the WM of 14 in vivo diffusion datasets recorded with two different protocols, and in simulated data. The first two datasets were also fit to the NODDI-DTI model using only the first shell (as for DTI) of data. NODDI-DTI parameters estimated from DTI, and NODDI-DTI parameters estimated by fitting the model to the first shell of data gave similar errors compared to two-shell NODDI-DTI estimates. The simulations showed the NODDI-DTI method to be more noise-robust than the two shell fitting procedure. The NODDI-DTI method gave unphysical parameter estimates in a small percentage of voxels, reflecting voxelwise DTI estimation error or NODDI-DTI model invalidity. In the course of evaluating the NODDI-DTI model, it was found that diffusional kurtosis strongly biased DTI-based MD values, and so, making assumptions based on healthy WM, a novel heuristic correction requiring only DTI data was derived and used to mitigate this bias. Since validations were only performed on healthy WM, application to grey matter or pathological WM would require further validation. Our results demonstrate NODDI-DTI to be a promising model and technique to interpret restricted datasets acquired for DTI analysis in healthy white matter with greater biophysical specificity, though its limitations must be borne in mind. PMID- 29326547 TI - Coordinated Morphogenetic Mechanisms Shape the Vertebrate Eye. AB - The molecular bases of vertebrate eye formation have been extensively investigated during the past 20 years. This has resulted in the definition of the backbone of the gene regulatory networks controlling the different steps of eye development and has further highlighted a substantial conservation of these networks among vertebrates. Yet, the precise morphogenetic events allowing the formation of the optic cup from a small group of cells within the anterior neural plate are still poorly understood. It is also unclear if the morphogenetic events leading to eyes of very similar shape are indeed comparable among all vertebrates or if there are any species-specific peculiarities. Improved imaging techniques have enabled to follow how the eye forms in living embryos of a few vertebrate models, whereas the development of organoid cultures has provided fascinating tools to recapitulate tissue morphogenesis of other less accessible species. Here, we will discuss what these advances have taught us about eye morphogenesis, underscoring possible similarities and differences among vertebrates. We will also discuss the contribution of cell shape changes to this process and how morphogenetic and patterning mechanisms integrate to assemble the final architecture of the eye. PMID- 29326548 TI - A c-Src Inhibitor Peptide Based on Connexin43 Exerts Neuroprotective Effects through the Inhibition of Glial Hemichannel Activity. AB - The non-receptor tyrosine kinase c-Src is an important mediator in several signaling pathways related to neuroinflammation. Our previous study showed that cortical injection of kainic acid (KA) promoted a transient increase in c-Src activity in reactive astrocytes surrounding the neuronal lesion. As a cell penetrating peptide based on connexin43 (Cx43), specifically TAT-Cx43266-283, inhibits Src activity, we investigated the effect of TAT-Cx43266-283 on neuronal death promoted by cortical KA injections in adult mice. As expected, KA promoted neuronal death, estimated by the reduction in NeuN-positive cells and reactive gliosis, characterized by the increase in glial fibrillary acidic protein (GFAP) expression. Interestingly, TAT-Cx43266-283 injected with KA diminished neuronal death and reactive gliosis compared to KA or KA+TAT injections. In order to gain insight into the neuroprotective mechanism, we used in vitro models. In primary cultured neurons, TAT-Cx43266-283 did not prevent neuronal death promoted by KA, but when neurons were grown on top of astrocytes, TAT-Cx43266-283 prevented neuronal death promoted by KA. These observations demonstrate the participation of astrocytes in the neuroprotective effect of TAT-Cx43266-283. Furthermore, the neuroprotective effect was also present in non-contact co-cultures, suggesting the contribution of soluble factors released by astrocytes. As glial hemichannel activity is associated with the release of several factors, such as ATP and glutamate, that cause neuronal death, we explored the participation of these channels on the neuroprotective effect of TAT-Cx43266-283. Our results confirmed that inhibitors of ATP and NMDA receptors prevented neuronal death in co-cultures treated with KA, suggesting the participation of astrocyte hemichannels in neurotoxicity. Furthermore, TAT-Cx43266-283 reduced hemichannel activity promoted by KA in neuron-astrocyte co-cultures as assessed by ethidium bromide (EtBr) uptake assay. In fact, TAT-Cx43266-283 and dasatinib, a potent c-Src inhibitor, strongly reduced the activation of astrocyte hemichannels. In conclusion, our results suggest that TAT-Cx43266-283 exerts a neuroprotective effect through the reduction of hemichannel activity likely mediated by c-Src in astrocytes. These data unveil a new role of c-Src in the regulation of Cx43-hemichannel activity that could be part of the mechanism by which astroglial c-Src participates in neuroinflammation. PMID- 29326549 TI - Differential Modulation of GABAA and NMDA Receptors by an alpha7-nicotinic Acetylcholine Receptor Agonist in Chronic Glaucoma. AB - Presynaptic modulation of gamma-aminobutyric acid (GABA) release by an alpha7 nicotinic acetylcholine receptor (alpha7-nAChR) agonist promotes retinal ganglion cell (RGC) survival and function, as suggested by a previous study on a chronic glaucomatous model from our laboratory. However, the role of excitatory and inhibitory amino acid receptors and their interaction with alpha7-nAChR in physiological and glaucomatous events remains unknown. In this study, we investigated GABAA and N-methyl-D-aspartate (NMDA) receptor activity in control and glaucomatous retinal slices and the regulation of amino acid receptor expression and function by alpha7-nAChR. Whole-cell patch-clamp recordings from RGCs revealed that the alpha7-nAChR specific agonist PNU-282987 enhanced the amplitude of currents elicited by GABA and reduced the amplitude of currents elicited by NMDA. The positive modulation of GABAA receptor and the negative modulation of NMDA receptor (NMDAR) by PNU-282987-evoked were prevented by pre administration of the alpha7-nAChR antagonist methyllycaconitine (MLA). The frequency and the amplitude of glutamate receptor-mediated miniature glutamatergic excitatory postsynaptic currents (mEPSCs) were not significantly different between the control and glaucomatous RGCs. Additionally, PNU-282987 treated slices showed no alteration in the frequency or amplitude of mEPSCs relative to control RGCs. Moreover, we showed that expression of the alpha1 subunit of the GABAA receptor was downregulated and the expression of the NMDAR NR2B subunit was upregulated by intraocular pressure (IOP) elevation, and the changes of high IOP were blocked by PNU-282987. In conclusion, retina GABAA and NMDARs are modulated positively and negatively, respectively, by activation of alpha7-nAChR in in vivo chronic glaucomatous models. PMID- 29326550 TI - Preferential Initiation and Spread of Anoxic Depolarization in Layer 4 of Rat Barrel Cortex. AB - Anoxic depolarization (AD) is a hallmark of ischemic brain damage. AD is associated with a spreading wave of neuronal depolarization and an increase in light transmittance. However, initiation and spread of AD across the layers of the somatosensory cortex, which is one of the most frequently affected brain regions in ischemic stroke, remains largely unknown. Here, we explored the initiation and propagation of AD in slices of the rat barrel cortex using extracellular local field potential (LFP) recordings and optical intrinsic signal (OIS) recordings. We found that ischemia-like conditions induced by oxygen glucose deprivation (OGD) evoked AD, which manifested as a large negative LFP shift and an increase in light transmittance. AD typically initiated in one or more barrels and further spread across the entire slice with a preferential propagation through L4. Elevated extracellular potassium concentration accelerated the AD onset without affecting proneness of L4 to AD. In live slices, barrels were most heavily labeled by the metabolic level marker 2,3,5 triphenyltetrazolium chloride, suggesting that the highest metabolic demand is in L4 when compared to the other layers. Thus, L4 is the layer of the barrel cortex most prone to AD, which may be due to the highest metabolic demand and cell density in this layer. PMID- 29326551 TI - Spinal Cord Cells from Pre-metamorphic Stages Differentiate into Neurons and Promote Axon Growth and Regeneration after Transplantation into the Injured Spinal Cord of Non-regenerative Xenopus laevis Froglets. AB - Mammals are unable to regenerate its spinal cord after a lesion, meanwhile, anuran amphibians are capable of spinal cord regeneration only as larvae, and during metamorphosis, this capability is lost. Sox2/3+ cells present in the spinal cord of regenerative larvae are required for spinal cord regeneration. Here we evaluate the effect of the transplantation of spinal cord cells from regenerative larvae into the resected spinal cord of non-regenerative stages (NR stage). Donor cells were able to survive up to 60 days after transplantation in the injury zone. During the first 3-weeks, transplanted cells organize in neural tube-like structures formed by Sox2/3+ cells. This was not observed when donor cells come from non-regenerative froglets. Mature neurons expressing NeuN and Neurofilament-H were detected in the grafted tissue 4 weeks after transplantation concomitantly with the appearance of axons derived from the donor cells growing into the host spinal cord, suggesting that Sox2/3+ cells behave as neural stem progenitor cells. We also found that cells from regenerative animals provide a permissive environment that promotes growth and regeneration of axons coming from the host. These results suggest that Sox2/3 cells present in the spinal cord of regenerative stage (R-stage) larvae are most probably neural stem progenitor cells that are able to survive, proliferate, self-organize and differentiate into neurons in the environment of the non-regenerative host. In addition, we have established an experimental paradigm to study the biology of neural stem progenitor cells in spinal cord regeneration. PMID- 29326552 TI - Actin Waves Do Not Boost Neurite Outgrowth in the Early Stages of Neuron Maturation. AB - During neurite development, Actin Waves (AWs) emerge at the neurite base and move up to its tip, causing a transient retraction of the Growth Cone (GC). Many studies have shown that AWs are linked to outbursts of neurite growth and, therefore, contribute to the fast elongation of the nascent axon. Using long term live cell-imaging, we show that AWs do not boost neurite outgrowth and that neurites without AWs can elongate for several hundred microns. Inhibition of Myosin II abolishes the transient GC retraction and strongly modifies the AWs morphology. Super-resolution nanoscopy shows that Myosin IIB shapes the growth cone-like AWs structure and is differently distributed in AWs and GCs. Interestingly, depletion of membrane cholesterol and inhibition of Rho GTPases decrease AWs frequency and velocity. Our results indicate that Myosin IIB, membrane tension, and small Rho GTPases are important players in the regulation of the AW dynamics. Finally, we suggest a role for AWs in maintaining the GCs active during environmental exploration. PMID- 29326553 TI - The Fast Spiking Subpopulation of Striatal Neurons Coding for Temporal Cognition of Movements. AB - Background: Timing dysfunctions occur in a number of neurological and psychiatric disorders such as Parkinson's disease, obsessive-compulsive disorder, autism and attention-deficit-hyperactivity disorder. Several lines of evidence show that disrupted timing processing is involved in specific fronto-striatal abnormalities. The striatum encodes reinforcement learning and procedural motion, and consequently is required to represent temporal information precisely, which then guides actions in proper sequence. Previous studies highlighted the temporal scaling property of timing-relevant striatal neurons; however, it is still unknown how this is accomplished over short temporal latencies, such as the sub seconds to seconds range. Methods: We designed a task with a series of timing behaviors that required rats to reproduce a fixed duration with robust action. Using chronic multichannel electrode arrays, we recorded neural activity from dorso-medial striatum in 4 rats performing the task and identified modulation response of each neuron to different events. Cell type classification was performed according to a multi-criteria clustering analysis. Results: Dorso medial striatal neurons (n = 557) were recorded, of which 113 single units were considered as timing-relevant neurons, especially the fast-spiking subpopulation that had trial-to-trial ramping up or ramping down firing modulation during the time estimation period. Furthermore, these timing-relevant striatal neurons had to calibrate the spread of their firing pattern by rewarded experience to express the timing behavior accurately. Conclusion: Our data suggests that the dynamic activities of timing-relevant units encode information about the current duration and recent outcomes, which is needed to predict and drive the following action. These results reveal the potential mechanism of time calibration in a short temporal resolution, which may help to explain the neural basis of motor coordination affected by certain physiological or pathological conditions. PMID- 29326554 TI - A Variant of the Autophagy-Related 5 Gene Is Associated with Child Cerebral Palsy. AB - Cerebral palsy (CP) is a major cause of childhood disability in developed and developing countries, but the pathogenic mechanisms of CP development remain largely unknown. Autophagy is a highly conserved cellular self-digestion of damaged organelles and dysfunctional macromolecules. Growing evidence suggests that autophagy-related gene 5 (ATG5)-dependent autophagy is involved in neural development, neuronal differentiation, and neurological degenerative diseases. The aim of this study was to analyze ATG5 protein expression and gene polymorphisms in Chinese patients with CP and to evaluate the importance of ATG5 in the development of CP. Five polymorphisms from different regions of the ATG5 gene (rs510432, rs3804338, rs573775, rs2299863, and rs6568431) were analyzed in 715 CP patients and 658 controls using MassARRAY. Of these, 58 patients and 56 controls were selected for measurement of plasma ATG5 level using ELISA. The relevance of disease-associated SNPs was evaluated using the SHEsis program. We identified a significant association between rs6568431 and CP (OR = 1.388, 95% CI = 1.173~1.643, Pallele = 0.0005, Pgenotype = 0.0015). Subgroup analysis showed a highly significant association of rs6568431 with spastic CP (n = 468, OR = 1.511, 95% CI = 1.251~1.824, Pallele = 8.50e-005, Pgenotype = 1.57e-004) and spastic quadriplegia (OR = 1.927, 95% CI = 1.533~2.421, Pallele = 7.35e-008, Pgenotype = 3.24e-009). Furthermore, mean plasma ATG5 levels were lower in CP patients than in controls, and individuals carrying the AA genotype of rs6568431 that was positively associated with CP had lower plasma ATG5 levels (P < 0.05). This study demonstrated an association of an ATG5 gene variant and low level of ATG5 protein with CP, and stronger associations with severe clinical manifestations were identified. Our results provide novel evidence for a role of ATG5 in CP and shed light on the molecular mechanisms underlying this neurodevelopmental disorder. PMID- 29326555 TI - Neurodegeneration: Keeping ATF4 on a Tight Leash. AB - Activation of the endoplasmic reticulum (ER) stress and ER stress response, also known as the unfolded protein response (UPR), is common to various degenerative disorders. Therefore, signaling components of the UPR are currently emerging as potential targets for intervention and treatment of human diseases. One UPR signaling member, activating transcription factor 4 (ATF4), has been found up regulated in many pathological conditions, pointing to therapeutic potential in targeting its expression. In cells, ATF4 governs multiple signaling pathways, including autophagy, oxidative stress, inflammation, and translation, suggesting a multifaceted role of ATF4 in the progression of various pathologies. However, ATF4 has been shown to trigger both pro-survival and pro-death pathways, and this, perhaps, can explain the contradictory opinions in current literature regarding targeting ATF4 for clinical application. In this review, we summarized recent published studies from our labs and others that focus on the therapeutic potential of the strategy controlling ATF4 expression in different retinal and neurodegenerative disorders. PMID- 29326556 TI - The Oxidative Stress-Induced Increase in the Membrane Expression of the Water Permeable Channel Aquaporin-4 in Astrocytes Is Regulated by Caveolin-1 Phosphorylation. AB - The reperfusion of ischemic brain tissue following a cerebral stroke causes oxidative stress, and leads to the generation of reactive oxygen species (ROS). Apart from inflicting oxidative damage, the latter may also trigger the upregulation of aquaporin 4 (AQP4), a water-permeable channel expressed by astroglial cells of the blood-brain barrier (BBB), and contribute to edema formation, the severity of which is known to be the primary determinant of mortality and morbidity. The mechanism through which this occurs remains unknown. In the present study, we have attempted to address this question using primary astrocyte cultures treated with hydrogen peroxide (H2O2) as a model system. First, we showed that H2O2 induces a significant increase in AQP4 protein levels and that this is inhibited by the antioxidant N-acetylcysteine (NAC). Second, we demonstrated using cell surface biotinylation that H2O2 increases AQP4 cell surface expression independently of it's increased synthesis. In parallel, we found that caveolin-1 (Cav1) is phosphorylated in response to H2O2 and that this is reversed by the Src kinase inhibitor 4-Amino-5-(4-chlorophenyl)-7-(t butyl)pyrazolo[3,4-d]pyrimidine (PP2). PP2 also abrogated the H2O2-induced increase in AQP4 surface levels, suggesting that the phosphorylation of tyrosine 14 of Cav1 regulates this process. We further showed that dominant-negative Y14F and phosphomimetic Y14D mutants caused a decrease and increase in AQP4 membrane expression respectively, and that the knockdown of Cav1 inhibits the increase in AQP4 cell-surface, expression following H2O2 treatment. Together, these findings suggest that oxidative stress-induced Cav1 phosphorylation modulates AQP4 subcellular distribution and therefore may indirectly regulate AQP4-mediated water transport. PMID- 29326557 TI - TRPC6-mediated ERK1/2 Activation Regulates Neuronal Excitability via Subcellular Kv4.3 Localization in the Rat Hippocampus. AB - Recently, we have reported that transient receptor potential channel-6 (TRPC6) plays an important role in the regulation of neuronal excitability and synchronization of spiking activity in the dentate granule cells (DGC). However, the underlying mechanisms of TRPC6 in these phenomena have been still unclear. In the present study, we investigated the role of TRPC6 in subcellular localization of Kv4.3 and its relevance to neuronal excitability in the rat hippocampus. TRPC6 knockdown increased excitability and inhibitory transmission in the DGC and the CA1 neurons in response to a paired-pulse stimulus. However, TRPC6 knockdown impaired gamma-aminobutyric acid (GABA)ergic inhibition in the hippocampus during and after high-frequency stimulation (HFS). TRPC6 knockdown reduced the Kv4.3 clusters in membrane fractions and its dendritic localization on DGC and GABAergic interneurons. TRPC6 knockdown also decreased extracellular signal regulated kinase 1/2 (ERK1/2) phosphorylation and the efficacy of 4-aminopyridine (4-AP) in neuronal excitability. An ERK1/2 inhibitor generated multiple population spikes in response to a paired-pulse stimulus, concomitant with reduced membrane Kv4.3 translocation. A TRPC6 activator (hyperforin) reversed the effects of TRPC knockdown, except paired-pulse inhibition. These findings provide valuable clues indicating that TRPC6-mediated ERK1/2 activation may regulate subcellular Kv4.3 localization in DGC and interneurons, which is cause-effect relationship between neuronal excitability and seizure susceptibility. PMID- 29326558 TI - Dichotomous Dynamics in E-I Networks with Strongly and Weakly Intra-connected Inhibitory Neurons. AB - The interconnectivity between excitatory and inhibitory neural networks informs mechanisms by which rhythmic bursts of excitatory activity can be produced in the brain. One such mechanism, Pyramidal Interneuron Network Gamma (PING), relies primarily upon reciprocal connectivity between the excitatory and inhibitory networks, while also including intra-connectivity of inhibitory cells. The causal relationship between excitatory activity and the subsequent burst of inhibitory activity is of paramount importance to the mechanism and has been well studied. However, the role of the intra-connectivity of the inhibitory network, while important for PING, has not been studied in detail, as most analyses of PING simply assume that inhibitory intra-connectivity is strong enough to suppress subsequent firing following the initial inhibitory burst. In this paper we investigate the role that the strength of inhibitory intra-connectivity plays in determining the dynamics of PING-style networks. We show that networks with weak inhibitory intra-connectivity exhibit variations in burst dynamics of both the excitatory and inhibitory cells that are not obtained with strong inhibitory intra-connectivity. Networks with weak inhibitory intra-connectivity exhibit excitatory rhythmic bursts with weak excitatory-to-inhibitory synapses for which classical PING networks would show no rhythmic activity. Additionally, variations in dynamics of these networks as the excitatory-to-inhibitory synaptic weight increases illustrates the important role that consistent pattern formation in the inhibitory cells serves in maintaining organized and periodic excitatory bursts. Finally, motivated by these results and the known diversity of interneurons, we show that a PING-style network with two inhibitory subnetworks, one strongly intra-connected and one weakly intra-connected, exhibits organized and periodic excitatory activity over a larger parameter regime than networks with a homogeneous inhibitory population. Taken together, these results serve to better articulate the role of inhibitory intra-connectivity in generating PING-like rhythms, while also revealing how heterogeneity amongst inhibitory synapses might make such rhythms more robust to a variety of network parameters. PMID- 29326559 TI - Academic and Behavioral Outcomes in School-Age South African Children Following Severe Traumatic Brain Injury. AB - Background: Children who have sustained severe traumatic brain injuries (TBIs) demonstrate a range of post-injury neurocognitive and behavioral sequelae, which may have adverse effects on their academic and behavioral outcomes and interfere with school re-entry, educational progress, and quality of life. These post-TBI sequelae are exacerbated within the context of a resource-poor country like South Africa (SA) where the education system is in a somewhat precarious state especially for those from disadvantaged backgrounds. Objectives: To describe behavioral and academic outcomes of a group of school-aged SA children following severe TBI. Methods: The sample included 27 school-age children who were admitted to the Red Cross War Memorial Children's Hospital (RXH), SA, between 2006 and 2011 for closed severe TBI and who received intracranial monitoring. We collected behavioral data using the Child Behavior Checklist (CBCL) and the Behavior Rating Inventory of Executive Function (BRIEF) and academic information sourced from the BRIEF, CBCL, medical folders, and caregivers. Analyses include descriptive statistics and bivariate correlation matrices. Results: The descriptive results show that (1) more than half of the participants experienced clinically significant behavioral problems across the CBCL scales, (2) the working memory BRIEF subscale appeared to be the most problematic subdomain, (3) two thirds of the sample were receiving some form of, or were in the process of being placed in, special needs education, (4) there was a three-fold increase in the use of special education services from pre- to post-injury, and (5) more than half (n = 16) of the sample repeated at least one grade after returning to school post injury. Correlation analyses results suggest that children with increased externalizing behavioral problems and executive dysfunction are more likely to repeat a grade post-injury; and that children with executive dysfunction post-TBI are more likely to require some form of special educational services. Conclusion: While there is a vast amount of literature on pediatric TBI (pTBI) academic and behavioral outcomes, little literature exists on the pTBI population from the developing world and SA specifically. This is important to address given unique challenges that face the country and its educational system, and its implications for the management and care of children post-TBI. PMID- 29326561 TI - Neurotechnology: Current Developments and Ethical Issues. PMID- 29326560 TI - Structural Features of an OR37 Glomerulus: A Comparative Study. AB - In the olfactory bulb (OB) a sophisticated neuronal network mediates the primary processing of sensory information and extensive investigations over the past decades have greatly improved our understanding of the morphology and neuronal organization of the OB. However, efforts have mostly been focused on the different radial layers, typical for the OB and little attention has been paid to individual odorant receptor specific glomeruli, the first relay station of sensory information. It has been assumed that glomeruli processing odorant information out of different contextual fields might require accordingly specialized neuronal networks. In this study, we have analyzed and compared the structural features as well as cell types in the periglomerular (PG) region of three odorant receptor specific glomeruli. The investigations were focused on glomeruli of the receptor type OR37A, a member of the unique OR37 subsystem, in comparison to glomeruli of OR18-2, a class I odorant receptor and OR256-17, a class II receptor. Each of the odorant receptor types is known to be activated by distinct odorants and their glomeruli are located in different regions of the bulb. We found significant differences in the size of the glomeruli as well as in the variability of the glomerulus size in individual mice, whereby the OR37A glomeruli featured a remarkably stable size. The number of cells surrounding a given glomerulus correlated strongly with its size which allowed comparative analyses of the surrounding cell types for individual glomeruli. The proportion of PG cells labeled by NeuN as well as putative GABAergic neurons labeled by GAD65 was quite similar for the different glomerulus types. However, the number of cells expressing distinct calcium-binding proteins, namely parvalbumin (PV), calbindin (CB) or calretinin (CR) varied significantly among the three glomerulus types. These data suggest that each odorant receptor specific glomerulus type may be surrounded by a unique network of PG cells. PMID- 29326563 TI - Modulation of Speech Motor Learning with Transcranial Direct Current Stimulation of the Inferior Parietal Lobe. AB - The inferior parietal lobe (IPL) is a region of the cortex believed to participate in speech motor learning. In this study, we investigated whether transcranial direct current stimulation (tDCS) of the IPL could influence the extent to which healthy adults (1) adapted to a sensory alteration of their own auditory feedback, and (2) changed their perceptual representation. Seventy subjects completed three tasks: a baseline perceptual task that located the phonetic boundary between the vowels /e/ and /a/; a sensorimotor adaptation task in which subjects produced the word "head" under conditions of altered or unaltered feedback; and a post-adaptation perceptual task identical to the first. Subjects were allocated to four groups which differed in current polarity and feedback manipulation. Subjects who received anodal tDCS to their IPL (i.e., presumably increasing cortical excitability) lowered their first formant frequency (F1) by 10% in opposition to the upward shift in F1 in their auditory feedback. Subjects who received the same stimulation with unaltered feedback did not change their production. Subjects who received cathodal tDCS to their IPL (i.e., presumably decreasing cortical excitability) showed a 5% adaptation to the F1 alteration similar to subjects who received sham tDCS. A subset of subjects returned a few days later to reiterate the same protocol but without tDCS, enabling assessment of any facilitatory effects of the previous tDCS. All subjects exhibited a 5% adaptation effect. In addition, across all subjects and for the two recording sessions, the phonetic boundary was shifted toward the vowel /e/ being repeated, consistently with the selective adaptation effect, but a correlation between perception and production suggested that anodal tDCS had enhanced this perceptual shift. In conclusion, we successfully demonstrated that anodal tDCS could (1) enhance the motor adaptation to a sensory alteration, and (2) potentially affect the perceptual representation of those sounds, but we failed to demonstrate the reverse effect with the cathodal configuration. Overall, tDCS of the left IPL can be used to enhance speech performance but only under conditions in which new or adaptive learning is required. PMID- 29326562 TI - A Marked Point Process Framework for Extracellular Electrical Potentials. AB - Neuromodulations are an important component of extracellular electrical potentials (EEP), such as the Electroencephalogram (EEG), Electrocorticogram (ECoG) and Local Field Potentials (LFP). This spatially temporal organized multi frequency transient (phasic) activity reflects the multiscale spatiotemporal synchronization of neuronal populations in response to external stimuli or internal physiological processes. We propose a novel generative statistical model of a single EEP channel, where the collected signal is regarded as the noisy addition of reoccurring, multi-frequency phasic events over time. One of the main advantages of the proposed framework is the exceptional temporal resolution in the time location of the EEP phasic events, e.g., up to the sampling period utilized in the data collection. Therefore, this allows for the first time a description of neuromodulation in EEPs as a Marked Point Process (MPP), represented by their amplitude, center frequency, duration, and time of occurrence. The generative model for the multi-frequency phasic events exploits sparseness and involves a shift-invariant implementation of the clustering technique known as k-means. The cost function incorporates a robust estimation component based on correntropy to mitigate the outliers caused by the inherent noise in the EEP. Lastly, the background EEP activity is explicitly modeled as the non-sparse component of the collected signal to further improve the delineation of the multi-frequency phasic events in time. The framework is validated using two publicly available datasets: the DREAMS sleep spindles database and one of the Brain-Computer Interface (BCI) competition datasets. The results achieve benchmark performance and provide novel quantitative descriptions based on power, event rates and timing in order to assess behavioral correlates beyond the classical power spectrum-based analysis. This opens the possibility for a unifying point process framework of multiscale brain activity where simultaneous recordings of EEP and the underlying single neuron spike activity can be integrated and regarded as marked and simple point processes, respectively. PMID- 29326565 TI - Group and Individual Variability in Mouse Pup Isolation Calls Recorded on the Same Day Show Stability. AB - Mice produce ultrasonic vocalizations (USVs) in a variety of social situations, and USVs have been leveraged to study many neurological diseases including verbal dyspraxia, depression, autism and stuttering. Pups produce isolation calls, a common USV, spontaneously when they are isolated from their mother during the first 2 weeks of life. Several genetic manipulations affect (and often reduce) pup isolation calls in mice. To facilitate the use of this assay as a means of testing whether significant functional differences in genotypes exist instead of contextual differences, we test the variability inherent in many commons measures of mouse vocalizations. Here we use biological consistency as a way of determining which are reproducible in mouse pup vocalizations. We present a comprehensive analysis of the normal variability of these vocalizations in groups of mice, individual mice and different strains of mice. To control for maturation effects, we recorded pup isolation calls in the same group of C57BL/6J 5 days old mice twice, with 1 h of rest in between recordings. In almost all cases, the group averages between the first and second recordings were the same. We also found that there were high correlations in some parameters in individual mice across recording while others were not well correlated. These findings could be replicated for the majority of features in a separate group of C57BL/6J mice and a group of 129/SvEvBrd-C57BL/6J mice. The averages of these mouse USV features are highly consistent and represent a robust assay to test the effects of genetic and other interventions in the experimental setting. PMID- 29326564 TI - Audio Motor Training at the Foot Level Improves Space Representation. AB - Spatial representation is developed thanks to the integration of visual signals with the other senses. It has been shown that the lack of vision compromises the development of some spatial representations. In this study we tested the effect of a new rehabilitation device called ABBI (Audio Bracelet for Blind Interaction) to improve space representation. ABBI produces an audio feedback linked to body movement. Previous studies from our group showed that this device improves the spatial representation of space in early blind adults around the upper part of the body. Here we evaluate whether the audio motor feedback produced by ABBI can also improve audio spatial representation of sighted individuals in the space around the legs. Forty five blindfolded sighted subjects participated in the study, subdivided into three experimental groups. An audio space localization (front-back discrimination) task was performed twice by all groups of subjects before and after different kind of training conditions. A group (experimental) performed an audio-motor training with the ABBI device placed on their foot. Another group (control) performed a free motor activity without audio feedback associated with body movement. The other group (control) passively listened to the ABBI sound moved at foot level by the experimenter without producing any body movement. Results showed that only the experimental group, which performed the training with the audio-motor feedback, showed an improvement in accuracy for sound discrimination. No improvement was observed for the two control groups. These findings suggest that the audio-motor training with ABBI improves audio space perception also in the space around the legs in sighted individuals. This result provides important inputs for the rehabilitation of the space representations in the lower part of the body. PMID- 29326566 TI - Investigating Gender Differences under Time Pressure in Financial Risk Taking. AB - There is a significant gender imbalance on financial trading floors. This motivated us to investigate gender differences in financial risk taking under pressure. We used a well-established approach from behavior economics to analyze a series of risky monetary choices by male and female participants with and without time pressure. We also used second to fourth digit ratio (2D:4D) and face width-to-height ratio (fWHR) as correlates of pre-natal exposure to testosterone. We constructed a structural model and estimated the participants' risk attitudes and probability perceptions via maximum likelihood estimation under both expected utility (EU) and rank-dependent utility (RDU) models. In line with existing research, we found that male participants are less risk averse and that the gender gap in risk attitudes increases under moderate time pressure. We found that female participants with lower 2D:4D ratios and higher fWHR are less risk averse in RDU estimates. Males with lower 2D:4D ratios were less risk averse in EU estimations, but more risk averse using RDU estimates. We also observe that men whose ratios indicate a greater prenatal exposure to testosterone exhibit a greater optimism and overestimation of small probabilities of success. PMID- 29326567 TI - No Robust Association between Static Markers of Testosterone and Facets of Socio Economic Decision Making. AB - Digit ratio (2D:4D) and facial width-to-height ratio (WHR) are supposedly static indicators of testosterone exposition during prenatal and pubertal lifetime, respectively. Both measures have been linked to aggressive and assertive behavior in laboratory economic games, as well as in real world scenarios. Most of the research-often limited to male subjects-considers the associations between these behaviors, traits, and hormonal markers separately for 2D:4D and WHR. Reported associations are weak and volatile. In the present study we had independent raters assess 2D:4D and WHR in a sample of N = 175 participants who played the ultimatum game (UG). Respondent behavior in UG captures the tendency to reject unfair offers (negative reciprocity). If unfair UG offers are seen as provocations, then individuals with stronger testosterone exposition may be more prone to reject such offers. Economists argue that negative reciprocity reflects altruistic punishment, since the rejecting individual is sacrificing own resources. However, recent studies suggest that self-interest, in terms of status defense plays a substantial role in decisions to reject unfair offers. We also assessed social preferences by social value orientation and assertiveness via self-report. By applying structural equation modeling we estimated the latent level association of 2D:4D and WHR with negative reciprocity, assertiveness and prosociality in both sexes. Results revealed no robust association between any of the trait measures and hormonal markers. The measures of 2D:4D and WHR were not related with each other. Multigroup models based on sex suggested invariance of factor loadings allowing to compare hormone-behavior relationships of females and males. Only when collapsing across sex greater WHR was weakly associated with assertiveness, suggesting that individuals with wider faces tend to express greater status defense. Only the right hand 2D:4D was weakly associated with prosocial behavior, indicating that individuals with lower prenatal testosterone exposure are more cooperative. Rejection behavior in UG was not related with 2D:4D nor WHR in any of the models. There were also no curvilinear associations between 2D:4D and prosociality as theorized in the literature. Our results suggest that previous studies over-estimated the role of static markers of testosterone in accounting for aggression and competition behavior in males. PMID- 29326568 TI - Tracing the Neural Carryover Effects of Interpersonal Anger on Resting-State fMRI in Men and Their Relation to Traumatic Stress Symptoms in a Subsample of Soldiers. AB - Uncontrolled anger may lead to aggression and is common in various clinical conditions, including post traumatic stress disorder. Emotion regulation strategies may vary with some more adaptive and efficient than others in reducing angry feelings. However, such feelings tend to linger after anger provocation, extending the challenge of coping with anger beyond provocation. Task-independent resting-state (rs) fMRI may be a particularly useful paradigm to reveal neural processes of spontaneous recovery from a preceding negative emotional experience. We aimed to trace the carryover effects of anger on endogenous neural dynamics by applying a data-driven examination of changes in functional connectivity (FC) during rs-fMRI between before and after an interpersonal anger induction (N = 44 men). Anger was induced based on unfair monetary offers in a previously validated decision-making task. We calculated a common measure of global FC (gFC) which captures the level of FC between each region and all other regions in the brain, and examined which brain regions manifested changes in this measure following anger. We next examined the changes in all functional connections of each individuated brain region with all other brain regions to reveal which connections underlie the differences found in the gFC analysis of the previous step. We subsequently examined the relation of the identified neural modulations in the aftermath of anger with state- and trait- like measures associated with anger, including brain structure, and in a subsample of designated infantry soldiers (N = 21), with levels of traumatic stress symptoms (TSS) measured 1 year later following combat-training. The analysis pipeline revealed an increase in right amygdala gFC in the aftermath of anger and specifically with the right inferior frontal gyrus (IFG).We found that the increase in FC between the right amygdala and right IFG following anger was positively associated with smaller right IFG volume, higher trait-anger level and among soldiers with more TSS. Moreover, higher levels of right amygdala gFC at baseline predicted less reported anger during the subsequent anger provocation. The results suggest that increased amygdala-IFG connectivity following anger is associated with maladaptive recovery, and relates to long-term development of stress symptomatology in a subsample of soldiers. PMID- 29326569 TI - Construct Validity and Reliability of the SARA Gait and Posture Sub-scale in Early Onset Ataxia. AB - Aim: In children, gait and posture assessment provides a crucial marker for the early characterization, surveillance and treatment evaluation of early onset ataxia (EOA). For reliable data entry of studies targeting at gait and posture improvement, uniform quantitative biomarkers are necessary. Until now, the pediatric test construct of gait and posture scores of the Scale for Assessment and Rating of Ataxia sub-scale (SARA) is still unclear. In the present study, we aimed to validate the construct validity and reliability of the pediatric (SARAGAIT/POSTURE) sub-scale. Methods: We included 28 EOA patients [15.5 (6-34) years; median (range)]. For inter-observer reliability, we determined the ICC on EOA SARAGAIT/POSTURE sub-scores by three independent pediatric neurologists. For convergent validity, we associated SARAGAIT/POSTURE sub-scores with: (1) Ataxic gait Severity Measurement by Klockgether (ASMK; dynamic balance), (2) Pediatric Balance Scale (PBS; static balance), (3) Gross Motor Function Classification Scale -extended and revised version (GMFCS-E&R), (4) SARA-kinetic scores (SARAKINETIC; kinetic function of the upper and lower limbs), (5) Archimedes Spiral (AS; kinetic function of the upper limbs), and (6) total SARA scores (SARATOTAL; i.e., summed SARAGAIT/POSTURE, SARAKINETIC, and SARASPEECH sub scores). For discriminant validity, we investigated whether EOA co-morbidity factors (myopathy and myoclonus) could influence SARAGAIT/POSTURE sub-scores. Results: The inter-observer agreement (ICC) on EOA SARAGAIT/POSTURE sub-scores was high (0.97). SARAGAIT/POSTURE was strongly correlated with the other ataxia and functional scales [ASMK (rs = -0.819; p < 0.001); PBS (rs = -0.943; p < 0.001); GMFCS-E&R (rs = -0.862; p < 0.001); SARAKINETIC (rs = 0.726; p < 0.001); AS (rs = 0.609; p = 0.002); and SARATOTAL (rs = 0.935; p < 0.001)]. Comorbid myopathy influenced SARAGAIT/POSTURE scores by concurrent muscle weakness, whereas comorbid myoclonus predominantly influenced SARAKINETIC scores. Conclusion: In young EOA patients, separate SARAGAIT/POSTURE parameters reveal a good inter-observer agreement and convergent validity, implicating the reliability of the scale. In perspective of incomplete discriminant validity, it is advisable to interpret SARAGAIT/POSTURE scores for comorbid muscle weakness. PMID- 29326571 TI - The MindfulBreather: Motion Guided Mindfulness. AB - For millennia, humans have focused their attention on the breath to develop mindfulness, but finding a scientific way to harness mindful breathing has proven elusive. Existing attempts to objectively measure and feedback on mindfulness have relied on specialist external hardware including electroencephalograms or respirometers that have been impractical for the majority of people learning to meditate. Consequently, training in the key skill of breath-awareness has lacked practical objective measures and guidance to enhance training. Here, we provide a brief technology report on an invention, The MindfulBreather(r) that addresses these issues. The technology is available to download embedded in a smartphone app that targets, measures and feedbacks on mindfulness of breathing in realtime to enhance training. The current article outlines only the technological concept with future studies quantifying efficacy, validity and reliability to be reported elsewhere. The MindfulBreather works by generating Motion Guided Mindfulness through interacting gyroscopic and touchscreen sensors in a three phase process: Mindfulness Induction (Phase I) gives standardized instruction to users to place their smartphone on their abdomen, breathe mindfully and to tap only at the peak of their inhalation. The smartphone's gyroscope detects periodic tilts during breathing to generate sinusoidal waveforms. Waveform-tap patterns are analyzed to determine whether the user is mindfully tapping only at the correct phase of the breathing cycle, indicating psychobiological synchronization. Mindfulness Maintenance (Phase II) provides reinforcing pleasant feedback sounds each time a breath is mindfully tapped at the right time, and the App records a mindful breath. Lastly, data-driven Insights are fed back to the user (Phase III), including the number of mindful breaths tapped and breathing rate reductions associated with parasympathetic engagement during meditation. The new MGM technology is then evaluated and contrasted with traditional mindfulness approaches and a novel Psychobiological Synchronization Model is proposed. In summary, unlike existing technology, the MindfulBreather requires no external hardware and repurposes regular smartphones to deliver app-embedded Motion-Guided Mindfulness. Technological applications include reducing mindwandering and down regulation of the brain's default mode through enhanced mindful awareness. By objectively harnessing breath awareness, The MindfulBreather aims to realize the ancient human endeavor of mindfulness for the 21st century. PMID- 29326570 TI - Spinal Cord Excitability and Sprint Performance Are Enhanced by Sensory Stimulation During Cycling. AB - Spinal cord excitability, as assessed by modulation of Hoffmann (H-) reflexes, is reduced with fatiguing isometric contractions. Furthermore, spinal cord excitability is reduced during non-fatiguing arm and leg cycling. Presynaptic inhibition of Ia terminals is believed to contribute to this suppression of spinal cord excitability. Electrical stimulation to cutaneous nerves reduces Ia presynaptic inhibition, which facilitates spinal cord excitability, and this facilitation is present during arm cycling. Although it has been suggested that reducing presynaptic inhibition may prolong fatiguing contractions, it is unknown whether sensory stimulation can alter the effects of fatiguing exercise on performance or spinal cord excitability. Thus, the aim of this experiment was to determine if sensory stimulation can interfere with fatigue-related suppression of spinal cord excitability, and alter fatigue rates during cycling sprints. Thirteen participants randomly performed three experimental sessions that included: unloaded cycling with sensory stimulation (CONTROL + STIM), sprints with sensory stimulation (SPRINT + STIM) and sprints without stimulation (SPRINT). Seven participants also performed a fourth session (CONTROL), which consisted of unloaded cycling. During SPRINT and SPRINT + STIM, participants performed seven, 10 s cycling sprints interleaved with 3 min rest. For CONTROL and CONTROL + STIM, participants performed unloaded cycling for ~30 min. During SPRINT + STIM and CONTROL + STIM, participants received patterned sensory stimulation to nerves of the right foot. H-reflexes and M-waves of the right soleus were evoked by stimulation of the tibial nerve at multiple time points throughout exercise. Sensory stimulation facilitated soleus H-reflexes during unloaded cycling, whereas sprints suppressed soleus H-reflexes. While receiving sensory stimulation, there was less suppression of soleus H-reflexes and slowed reduction in average power output, compared to sprints without stimulation. These results demonstrate that sensory stimulation can substantially mitigate the fatiguing effects of sprints. PMID- 29326572 TI - Differential Effects of Carbohydrates on Behavioral and Neuroelectric Indices of Selective Attention in Preadolescent Children. AB - The importance of breakfast consumption for ideal cognitive performance has received much attention in recent years, although research on the topic has yielded mixed results. The present study utilized event-related brain potentials (ERPs) elicited during a modified flanker task to investigate the neuroelectric implications of receiving different mixed macronutrient beverages after an overnight fast. A repeated measures design was employed whereby preadolescent participants (9-10 years of age) completed cognitive testing while ERPs were collected during two non-consecutive testing sessions, one in which they received one of three treatment beverages consisting of mixed-macronutrient formulations (either Carbohydrate Blend, Sucrose, Maltodextrin) and the other in which they received a placebo drink containing Sucralose. Performance indices, ERPs, and blood glucose were recorded at three time points before the testing session and after the ingestion of each drink. While the behavioral performance indices and N2 results showed some evidence of glucose facilitation, the effects were small and selective. Participants who received the Maltodextrin treatment showed faster reaction times and more stable N2 amplitudes after ingesting the treatment beverage. The most robust effects were seen in the P3 amplitude measurement. Across the three drink groups, participants showed a marked amplitude increase over time after the placebo drink was ingested, although P3 amplitudes remained stable when a carbohydrate treatment drink was ingested. These effects were eliminated when changes in blood glucose were accounted for, suggesting that the neurolectric effects were directly related to glycemic change. These findings suggest that ingestion of carbohydrates after an overnight fast results in changes to the P3 amplitude of the ERP waveform elicited during an attentional inhibition task. PMID- 29326573 TI - Two Processes in Early Bimanual Motor Skill Learning. AB - Most daily activities are bimanual and their efficient performance requires learning and retention of bimanual coordination. Despite in-depth knowledge of the various stages of motor skill learning in general, how new bimanual coordination control policies are established is still unclear. We designed a new cooperative bimanual task in which subjects had to move a cursor across a complex path (a circuit) as fast and as accurately as possible through coordinated bimanual movements. By looking at the transfer of the skill between different circuits and by looking at training with varying circuits, we identified two processes in early bimanual motor learning. Loss of performance due to the switch in circuit after 15 min of training amounted to 20%, which suggests that a significant portion of improvements in bimanual performance is specific to the used circuit (circuit-specific skill). In contrast, the loss of performance due to the switch in circuit was 5% after 4 min of training. This suggests that learning the new bimanual coordination control policy dominates early in the training and is independent of the used circuit. Finally, switching between two circuits throughout training did not affect the early stage of learning (i.e., the first few minutes), but did affect the later stage. Together, these results suggest that early bimanual motor skill learning includes two different processes. Learning the new bimanual coordination control policy predominates in the first minutes whereas circuit-specific skill improvements unfold later in parallel with further improvements in the bimanual coordination control policy. PMID- 29326574 TI - Response: Commentary: Skilled Bimanual Training Drives Motor Cortex Plasticity in Children with Unilateral Cerebral Palsy. PMID- 29326575 TI - Posture Used in fMRI-PET Elicits Reduced Cortical Activity and Altered Hemispheric Asymmetry with Respect to Sitting Position: An EEG Resting State Study. AB - Horizontal body position is a posture typically adopted for sleeping or during brain imaging recording in both neuroscience experiments and diagnostic situations. Recent literature showed how this position and similar ones with head down are associated to reduced plasticity, impaired pain and emotional responses. The present study aimed at further understanding the decrease of cortical activity associated with horizontal body position by measuring high-frequency EEG bands - typically associated with high-level cognitive activation - in a resting state experimental condition. To this end, two groups of 16 female students were randomly assigned to either sitting control (SC) or 2-h horizontal Bed Rest condition (hBR) while EEG was recorded from 38 scalp recording sites. The hBR group underwent several body transitions, from sitting to supine, and from supine to sitting. Results revealed a clear effect of horizontal posture: the hBR group showed, compared to its baseline and to SC, reduced High-Beta and Gamma EEG band amplitudes throughout the 2-h of hBR condition. In addition, before and after the supine condition, hBR group as well as SC exhibited a greater left vs. right frontal activation in both EEG bands while, on the contrary, the supine position induced a bilateral and reduced activation in hBR participants. The cortical sources significantly more active in SC compared with hBR participants included the left Inferior Frontal Gyrus and left Insula. Results are discussed in relation to the differences among neuroimaging methods (e.g., fMRI, EEG, NIRS), which can be partially explained by posture-induced neural network changes. PMID- 29326576 TI - Dynamic Changes in Upper-Limb Corticospinal Excitability during a 'Pro-/Anti saccade' Double-Choice Task. AB - Under natural behavioral conditions, visually guided eye movements are linked to direction-specific modulations of cortico-spinal system (CSS) excitability in upper-limb muscles, even in absence of a manual response. These excitability changes have been shown to be compatible with a covert motor program encoding a manual movement toward the same target of the eyes. The aim of this study is to investigate whether this implicit oculo-manual coupling is enforced following every saccade execution or it depends on the behavioral context. Twenty-two healthy young adults participated in the study. Single-pulse transcranial magnetic stimulation was applied to the motor cortex at nine different time epochs during a double-choice eye task, in which the decision to execute a prosaccade or an antisaccade was made on the color of a peripheral visual cue. By analyzing the amplitude of the motor evoked potentials (MEP) in three distal muscles of the resting upper-limb, a facilitation peak of CSS excitability was found in two of them at 120 ms before the eyes begin to move. Furthermore, a long lasting, generalized reduced corticomotor excitability develops following the eye response. Finally, a quite large modulation of MEP amplitude, depending on the direction of the saccade, is observed only in the first dorsal interosseous muscle, in a narrow time window at about 150 ms before the eye movement, irrespective of the type of the ocular response (pro-/anti-saccade). This change in CSS excitability is not tied up to the timing of the occurrence of the visual cue but, instead, appears to be tightly time-related to the saccade onset. Observed excitability changes differ in many respects from those previously reported with different behavioral paradigms. A main finding of our study is that the implicit coupling between eye and hand motor systems is contingent upon the particular motor set determined by the cognitive aspects of the performed oculomotor task. In particular, the direction-specific modulation in CSS excitability described in this study appears to be related to perceptual and decision-making processes rather than representing an implicit upper-limb motor program, coupled to the saccade execution. PMID- 29326579 TI - Interactive Light Stimulus Generation with High Performance Real-Time Image Processing and Simple Scripting. AB - Light stimulation with precise and complex spatial and temporal modulation is demanded by a series of research fields like visual neuroscience, optogenetics, ophthalmology, and visual psychophysics. We developed a user-friendly and flexible stimulus generating framework (GEARS GPU-based Eye And Retina Stimulation Software), which offers access to GPU computing power, and allows interactive modification of stimulus parameters during experiments. Furthermore, it has built-in support for driving external equipment, as well as for synchronization tasks, via USB ports. The use of GEARS does not require elaborate programming skills. The necessary scripting is visually aided by an intuitive interface, while the details of the underlying software and hardware components remain hidden. Internally, the software is a C++/Python hybrid using OpenGL graphics. Computations are performed on the GPU, and are defined in the GLSL shading language. However, all GPU settings, including the GPU shader programs, are automatically generated by GEARS. This is configured through a method encountered in game programming, which allows high flexibility: stimuli are straightforwardly composed using a broad library of basic components. Stimulus rendering is implemented solely in C++, therefore intermediary libraries for interfacing could be omitted. This enables the program to perform computationally demanding tasks like en-masse random number generation or real-time image processing by local and global operations. PMID- 29326577 TI - Does Transcranial Direct Current Stimulation Combined with Peripheral Electrical Stimulation Have an Additive Effect in the Control of Hip Joint Osteonecrosis Pain Associated with Sickle Cell Disease? A Protocol for a One-Session Double Blind, Block-Randomized Clinical Trial. AB - Chronic pain in Sickle Cell Disease (SCD) is probably related to maladaptive plasticity of brain areas involved in nociceptive processing. Transcranial Direct Current Stimulation (tDCS) and Peripheral Electrical Stimulation (PES) can modulate cortical excitability and help to control chronic pain. Studies have shown that combined use of tDCS and PES has additive effects. However, to date, no study investigated additive effects of these neuromodulatory techniques on chronic pain in patients with SCD. This protocol describes a study aiming to assess whether combined use of tDCS and PES more effectively alleviate pain in patients with SCD compared to single use of each technique. The study consists of a one-session double blind, block-randomized clinical trial (NCT02813629) in which 128 participants with SCD and femoral osteonecrosis will be enrolled. Stepwise procedures will occur on two independent days. On day 1, participants will be screened for eligibility criteria. On day 2, data collection will occur in four stages: sample characterization, baseline assessment, intervention, and post-intervention assessment. These procedures will last ~5 h. Participants will be divided into two groups according to homozygous for S allele (HbSS) (n = 64) and heterozygous for S and C alleles (HbSC) (n = 64) genotypes. Participants in each group will be randomly assigned, equally, to one of the following interventions: (1) active tDCS + active PES; (2) active tDCS + sham PES; (3) sham tDCS + active PES; and (4) sham tDCS + sham PES. Active tDCS intervention will consist of 20 min 2 mA anodic stimulation over the primary motor cortex contralateral to the most painful hip. Active PES intervention will consist of 30 min sensory electrical stimulation at 100 Hz over the most painful hip. The main study outcome will be pain intensity, measured by a Visual Analogue Scale. In addition, electroencephalographic power density, cortical maps of the gluteus maximus muscle elicited by Transcranial Magnetic Stimulation (TMS), serum levels of Brain-derived Neurotrophic Factor (BDNF), and Tumor Necrosis Factor (TNF) will be assessed as secondary outcomes. Data will be analyzed using ANOVA of repeated measures, controlling for confounding variables. PMID- 29326580 TI - The Passive Series Stiffness That Optimizes Torque Tracking for a Lower-Limb Exoskeleton in Human Walking. AB - This study uses theory and experiments to investigate the relationship between the passive stiffness of series elastic actuators and torque tracking performance in lower-limb exoskeletons during human walking. Through theoretical analysis with our simplified system model, we found that the optimal passive stiffness matches the slope of the desired torque-angle relationship. We also conjectured that a bandwidth limit resulted in a maximum rate of change in torque error that can be commanded through control input, which is fixed across desired and passive stiffness conditions. This led to hypotheses about the interactions among optimal control gains, passive stiffness and desired quasi-stiffness. Walking experiments were conducted with multiple angle-based desired torque curves. The observed lowest torque tracking errors identified for each combination of desired and passive stiffnesses were shown to be linearly proportional to the magnitude of the difference between the two stiffnesses. The proportional gains corresponding to the lowest observed errors were seen inversely proportional to passive stiffness values and to desired stiffness. These findings supported our hypotheses, and provide guidance to application-specific hardware customization as well as controller design for torque-controlled robotic legged locomotion. PMID- 29326578 TI - Audiovisual Rehabilitation in Hemianopia: A Model-Based Theoretical Investigation. AB - Hemianopic patients exhibit visual detection improvement in the blind field when audiovisual stimuli are given in spatiotemporally coincidence. Beyond this "online" multisensory improvement, there is evidence of long-lasting, "offline" effects induced by audiovisual training: patients show improved visual detection and orientation after they were trained to detect and saccade toward visual targets given in spatiotemporal proximity with auditory stimuli. These effects are ascribed to the Superior Colliculus (SC), which is spared in these patients and plays a pivotal role in audiovisual integration and oculomotor behavior. Recently, we developed a neural network model of audiovisual cortico-collicular loops, including interconnected areas representing the retina, striate and extrastriate visual cortices, auditory cortex, and SC. The network simulated unilateral V1 lesion with possible spared tissue and reproduced "online" effects. Here, we extend the previous network to shed light on circuits, plastic mechanisms, and synaptic reorganization that can mediate the training effects and functionally implement visual rehabilitation. The network is enriched by the oculomotor SC-brainstem route, and Hebbian mechanisms of synaptic plasticity, and is used to test different training paradigms (audiovisual/visual stimulation in eye-movements/fixed-eyes condition) on simulated patients. Results predict different training effects and associate them to synaptic changes in specific circuits. Thanks to the SC multisensory enhancement, the audiovisual training is able to effectively strengthen the retina-SC route, which in turn can foster reinforcement of the SC-brainstem route (this occurs only in eye-movements condition) and reinforcement of the SC-extrastriate route (this occurs in presence of survived V1 tissue, regardless of eye condition). The retina-SC brainstem circuit may mediate compensatory effects: the model assumes that reinforcement of this circuit can translate visual stimuli into short-latency saccades, possibly moving the stimuli into visual detection regions. The retina SC-extrastriate circuit is related to restitutive effects: visual stimuli can directly elicit visual detection with no need for eye movements. Model predictions and assumptions are critically discussed in view of existing behavioral and neurophysiological data, forecasting that other oculomotor compensatory mechanisms, beyond short-latency saccades, are likely involved, and stimulating future experimental and theoretical investigations. PMID- 29326581 TI - Effects of Dual-Task Management and Resistance Training on Gait Performance in Older Individuals: A Randomized Controlled Trial. AB - Background: Dual-task (DT) training is a well-accepted modality for fall prevention in older adults. DT training should include task-managing strategies such as task switching or task prioritization to improve gait performance under DT conditions. Methods: We conducted a randomized controlled trial to evaluate a balance and task managing training (BDT group) in gait performance compared to a single task (ST) strength and resistance training and a control group, which received no training. A total of 78 older individuals (72.0 +/- 4.9 years) participated in this study. The DT group performed task managing training incorporating balance and coordination tasks while the ST group performed resistance training only. Training consisted of 12 weekly sessions, 60 min each, for 12 weeks. We assessed the effects of ST and BDT training on walking performance under ST and DT conditions in independent living elderly adults. ST and DT walking (visual verbal Stroop task) were measured utilizing a treadmill at self-selected walking speed (mean for all groups: 4.4 +/- 1 km h-1). Specific gait variables, cognitive performance, and fear of falling were compared between all groups. >Results: Training improved gait performance for step length (p < 0.001) and gait-line (ST: p < 0.01; DT p < 0.05) in both training groups. The BDT training group showed greater improvements in step length (p < 0.001) and gait line (p < 0.01) during DT walking but did not have changes in cognitive performance. Both interventions reduced fear of falling (p < 0.05). Conclusion: Implementation of task management strategies into balance and strength training in our population revealed a promising modality to prevent falls in older individuals. Trial registration: German register of clinical trials DRKS00012382. PMID- 29326582 TI - Anodal Transcranial Direct Current Stimulation Promotes Frontal Compensatory Mechanisms in Healthy Elderly Subjects. AB - Recent studies have demonstrated that transcranial direct current stimulation (tDCS) is potentially useful to improve working memory. In the present study, young and elderly subjects performed a working memory task (n-back task) during an electroencephalogram recording before and after receiving anodal, cathodal, and sham tDCS over the left dorsolateral prefrontal cortex (DLPFC). We investigated modulations of behavioral performance and electrophysiological correlates of working memory processes (frontal and parietal P300 event-related potentials). A strong tendency to modulated working memory performance was observed after the application of tDCS. In detail, young, but not elderly, subjects benefited from additional practice in the absence of real tDCS, as indicated by their more accurate responses after sham tDCS. The cathodal tDCS had no effect in any group of participants. Importantly, anodal tDCS improved accuracy in elderly. Moreover, increased accuracy after anodal tDCS was correlated with a larger frontal P300 amplitude. These findings suggest that, in elderly subjects, improved working memory after anodal tDCS applied over the left DLPFC may be related to the promotion of frontal compensatory mechanisms, which are related to attentional processes. PMID- 29326583 TI - Pharmaceutical Regulation in Central and Eastern European Countries: A Current Review. AB - Objectives: The aim of this study was to review reimbursement environment as well as pricing and reimbursement requirements for drugs in selected Central and Eastern Europe (CEE) countries. Methods: A questionnaire-based survey was performed in the period from November 2016 to March 2017 among experts involved in reimbursement matters from CEE countries: Bulgaria, Croatia, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Slovakia, and Romania. A review of requirements for reimbursement and implications of Health Technology Assessment (HTA) was performed to compare the issues in above-mentioned countries. For each specified country, data for reimbursement costs, total pharmaceutical budget, and total public health care budget in the years 2014 and 2015 were also collected. Questionnaires were distributed via emails and feedback data were obtained in the same way. Additional questions, if any, were also submitted to respondents by email. Pricing and reimbursement data were valid for March 2017. Results: The survey revealed that the relation of drug reimbursement costs to total public healthcare spending ranged from 0.12 to 0.21 in the year 2014 and 2015 (median value). It also revealed that pricing criteria for drugs, employed in the CEE countries, were quite similar. External reference pricing as well as internal reference pricing were common in mentioned countries. Positive reimbursement lists were valid in all countries of the CEE region, negative ones were rarely used; reimbursement decisions were regularly revised and updated in the majority of countries. Copayment was common and available levels of reimbursement differed within and between the countries and ranged from 20 to 100%. Risk-sharing schemes were often in use, especially in the case of innovative, expensive drugs. Generic substitution was also possible in all analyzed CEE countries, while some made it mandatory. HTA was carried out in almost all of the considered CEE countries and HTA dossier was obligatory for submitting a pricing and reimbursement application. Conclusions: Pricing and reimbursement requirements are quite similar in the CEE region although some differences were identified. HTA evaluations are commonly used in considered countries. PMID- 29326584 TI - A Combined LC-MS Metabolomics- and 16S rRNA Sequencing Platform to Assess Interactions between Herbal Medicinal Products and Human Gut Bacteria in Vitro: a Pilot Study on Willow Bark Extract. AB - Herbal preparations are complex mixtures of natural products, many of which are able to reach the distal gut due to low oral bioavailability. There, they can influence the microbial communities, and can be metabolized into potentially absorbable bioactive compounds by the intestinal bacteria. This aspect has often been disregarded when searching for the active principles of medicinal plants and herbal medicinal products. The aim of this study was to establish an interdisciplinary platform to unravel interactions of herbal medicine and intestinal microbiota, using a combined LC-MS metabolomics and 16S rRNA microbiome sequencing approach. Willow bark extract (WBE), a herbal medicinal product with a long history of traditional use and a well-established anti inflammatory activity, was incubated with human fecal suspension under anoxic conditions. Samples were taken after 0.5, 4, and 24 h of incubation. Microbiome analyses revealed that incubation with WBE had a marked effect on microbial community composition and functions. For example, the proportion of Bacteroides sp. was clearly enhanced when the fecal sample used in this study was incubated with WBE. LC-MS analysis showed that WBE constituents were readily metabolized by fecal bacteria. Numerous microbial metabolites could be annotated, allowing the construction of putative microbial degradation pathways for the main groups of WBE constituents. We suggest that studies of this type help to increase the knowledge on bioactive principles of medicinal plants, since gut microbial metabolites might have been underestimated as a source of bioactive compounds in the past. PMID- 29326585 TI - In Vitro Pro-apoptotic and Anti-migratory Effects of Ficus deltoidea L. Plant Extracts on the Human Prostate Cancer Cell Lines PC3. AB - This study aims to evaluate the in vitro cytotoxic and anti-migratory effects of Ficus deltoidea L. on prostate cancer cells, identify the active compound/s and characterize their mechanism of actions. Two farmed varieties were studied, var. angustifolia (FD1) and var. deltoidea (FD2). Their crude methanolic extracts were partitioned into n-hexane (FD1h, FD2h) chloroform (FD1c, FD2c) and aqueous extracts (FD1a, FD2a). Antiproliferative fractions (IC50 < 30 MUg/mL, SRB staining of PC3 cells) were further fractionated. Active compound/s were dereplicated using spectroscopic methods. In vitro mechanistic studies on PC3 and/or LNCaP cells included: annexin V-FITC staining, MMP depolarization measurements, activity of caspases 3 and 7, nuclear DNA fragmentation and cell cycle analysis, modulation of Bax, Bcl-2, Smac/Diablo, and Alox-5 mRNA gene expression by RT-PCR. Effects of cytotoxic fractions on 2D migration and 3D invasion were tested by exclusion assays and modified Boyden chamber, respectively. Their mechanisms of action on these tests were further studied by measuring the expression VEGF-A, CXCR4, and CXCL12 in PC3 cells by RT-PCR. FD1c and FD2c extracts induced cell death (P < 0.05) via apoptosis as evidenced by nuclear DNA fragmentation. This was accompanied by an increase in MMP depolarization (P < 0.05), activation of caspases 3 and 7 (P < 0.05) in both PC3 and LNCaP cell lines. All active plant extracts up-regulated Bax and Smac/DIABLO, down-regulated Bcl-2 (P < 0.05). Both FD1c and FD2c were not cytotoxic against normal human fibroblast cells (HDFa) at the tested concentrations. Both plant extracts inhibited both migration and invasion of PC3 cells (P < 0.05). These effects were accompanied by down-regulation of both VEGF-A and CXCL-12 gene expressions (P < 0.001). LC-MS dereplication using taxonomy filters and molecular networking databases identified isovitexin in FD1c; and oleanolic acid, moretenol, betulin, lupenone, and lupeol in FD2c. In conclusion, FD1c and FD2c were able to overcome three main hallmarks of cancer in PC3 cells: (1) apoptosis by activating of the intrinsic pathway, (2) inhibition of both migration and invasion by modulating the CXCL12-CXCR4 axis, and (3) inhibiting angiogenesis by modulating VEGF-A expression. Moreover, isovitexin is here reported for the first time as an antiproliferative principle (IC50 = 43 MUg/mL, SRB staining of PC3 cells). PMID- 29326586 TI - Bio-Catalytic Structural Transformation of Anti-cancer Steroid, Drostanolone Enanthate with Cephalosporium aphidicola and Fusarium lini, and Cytotoxic Potential Evaluation of Its Metabolites against Certain Cancer Cell Lines. AB - In search of selective and effective anti-cancer agents, eight metabolites of anti-cancer steroid, drostanolone enanthate (1), were synthesized via microbial biotransformation. Enzymes such as reductase, oxidase, dehydrogenase, and hydrolase from Cephalosporium aphidicola, and Fusarium lini were likely involved in the biotransformation of 1 into new metabolites at pH 7.0 and 26 degrees C, yielding five new metabolites, 2alpha-methyl-3alpha,14alpha,17beta-trihydroxy 5alpha-androstane (2), 2alpha-methyl-7alpha-hydroxy-5alpha-androstan-3,17-dione (3), 2-methylandrosta-11alpha-hydroxy-1, 4-diene-3,17-dione (6), 2-methylandrosta 14alpha-hydroxy-1,4-diene-3,17-dione (7), and 2-methyl-5alpha-androsta-7alpha hydroxy-1-ene-3,17-dione (8), along with three known metabolites, 2alpha-methyl 3alpha,17beta-dihydroxy-5alpha-androstane (4), 2-methylandrosta-1, 4-diene-3,17 dione (5), and 2alpha-methyl-5alpha-androsta-17beta-hydroxy-3-one (9), on the basis of NMR, and HREI-MS data, and single-crystal X-ray diffraction techniques. Interestingly, C. aphidicola and F. lini were able to catalyze hydroxylation only at alpha positions of 1. Compounds 1-9 showed a varying degree of cytotoxicity against HeLa (human cervical carcinoma), PC3 (human prostate carcinoma), H460 (human lung cancer), and HCT116 (human colon cancer) cancer cell lines. Interestingly, metabolites 4 (IC50 = 49.5 +/- 2.2 MUM), 5 (IC50 = 39.8 +/- 1.5 MUM), 6 (IC50 = 40.7 +/- 0.9 MUM), 7 (IC50 = 43.9 +/- 2.4 MUM), 8 (IC50 = 19.6 +/ 1.4 MUM), and 9 (IC50 = 25.1 +/- 1.6 MUM) were found to be more active against HeLa cancer cell line than the substrate 1 (IC50 = 54.7 +/- 1.6 MUM). Similarly, metabolites 2 (IC50 = 84.6 +/- 6.4 MUM), 3 (IC50 = 68.1 +/- 1.2 MUM), 4 (IC50 = 60.4 +/- 0.9 MUM), 5 (IC50 = 84.0 +/- 3.1 MUM), 6 (IC50 = 58.4 +/- 1.6 MUM), 7 (IC50 = 59.1 +/- 2.6 MUM), 8 (IC50 = 51.8 +/- 3.4 MUM), and 9 (IC50 = 57.8 +/- 3.2 MUM) were identified as more active against PC-3 cancer cell line than the substrate 1 (IC50 = 96.2 +/- 3.0 MUM). Metabolite 9 (IC50 = 2.8 +/- 0.2 MUM) also showed potent anticancer activity against HCT116 cancer cell line than the substrate 1 (IC50 = 3.1 +/- 3.2 MUM). In addition, compounds 1-7 showed no cytotoxicity against 3T3 normal cell line, while compounds 8 (IC50 = 74.6 +/- 3.7 MUM), and 9 (IC50 = 62.1 +/- 1.2 MUM) were found to be weakly cytotoxic. PMID- 29326587 TI - HDAC2 and HDAC5 Up-Regulations Modulate Survivin and miR-125a-5p Expressions and Promote Hormone Therapy Resistance in Estrogen Receptor Positive Breast Cancer Cells. AB - Intrinsic or acquired resistance to hormone therapy is frequently reported in estrogen receptor positive (ER+) breast cancer patients. Even though dysregulations of histone deacetylases (HDACs) are known to promote cancer cells survival, the role of different HDACs in the induction of hormone therapy resistance in ER+ breast cancer remains unclear. Survivin is a well-known pro tumor survival molecule and miR-125a-5p is a recently discovered tumor suppressor. In this study, we found that ER+, hormone-independent, tamoxifen resistant MCF7-TamC3 cells exhibit increased expression of HDAC2, HDAC5, and survivin, but show decreased expression of miR-125a-5p, as compared to the parental tamoxifen-sensitive MCF7 breast cancer cells. Molecular down-regulations of HDAC2, HDAC5, and survivin, and ectopic over-expression of miR-125a-5p, increased the sensitivity of MCF7-TamC3 cells to estrogen deprivation and restored the sensitivity to tamoxifen. The same treatments also further increased the sensitivity to estrogen-deprivation in the ER+ hormone-dependent ZR-75-1 breast cancer cells in vitro. Kaplan-Meier analysis and receiver operating characteristic curve analysis of expression cohorts of breast tumor showed that high HDAC2 and survivin, and low miR-125a-5p, expression levels correlate with poor relapse-free survival in endocrine therapy and tamoxifen-treated ER+ breast cancer patients. Further molecular analysis revealed that HDAC2 and HDAC5 positively modulates the expression of survivin, and negatively regulates the expression miR-125a-5p, in ER+ MCF7, MCF7-TamC3, and ZR-75-1 breast cancer cells. These findings indicate that dysregulations of HDAC2 and HDAC5 promote the development of hormone independency and tamoxifen resistance in ERC breast cancer cells in part through expression regulation of survivin and miR-125a-5p. PMID- 29326588 TI - Age-Related Decrease in Male Extra-Striatal Adenosine A1 Receptors Measured Using11C-MPDX PET. AB - Adenosine A1 receptors (A1Rs) are widely distributed throughout the entire human brain, while adenosine A2A receptors (A2ARs) are present in dopamine-rich areas of the brain, such as the basal ganglia. A past study using autoradiography reported a reduced binding ability of A1R in the striatum of old rats. We developed positron emission tomography (PET) ligands for mapping the adenosine receptors and we successfully visualized the A1Rs using 8-dicyclopropylmethyl-1 11C-methyl-3-propylxanthine (11C-MPDX). We previously reported that the density of A1Rs decreased with age in the human striatum, although we could not observe an age-related change in A2ARs. The aim of this study was to investigate the age related change of the density of A1Rs in the thalamus and cerebral cortices of healthy participants using 11C-MPDX PET. We recruited eight young (22.0 +/- 1.7 years) and nine elderly healthy male volunteers (65.7 +/- 8.0 years). A dynamic series of decay-corrected PET scans was performed for 60 min starting with the injection of 11C-MPDX. We placed the circular regions of interest of 10 mm in diameter in 11C-MPDX PET images. The values for the binding potential (BPND) of 11C-MPDX in the thalamus, and frontal, temporal, occipital, and parietal cortices were calculated using a graphical analysis, wherein the reference region was the cerebellum. BPND of 11C-MPDX was significantly lower in elderly participants than young participants in the thalamus, and frontal, temporal, occipital, and parietal cortices. In the human brain, we could observe the age-related decrease in the distribution of A1Rs. PMID- 29326589 TI - Increased Number of Circulating CD8/CD26 T Cells in the Blood of Duchenne Muscular Dystrophy Patients Is Associated with Augmented Binding of Adenosine Deaminase and Higher Muscular Strength Scores. AB - Duchenne muscular dystrophy (DMD) is an X-linked disorder that leads to cardiac and skeletal myopathy. The complex immune activation in boys with DMD is incompletely understood. To better understand the contribution of the immune system into the progression of DMD, we performed a systematic characterization of immune cell subpopulations obtained from peripheral blood of DMD subjects and control donors. We found that the number of CD8 cells expressing CD26 (also known as adenosine deaminase complexing protein 2) was increased in DMD subjects compared to control. No differences, however, were found in the levels of circulating factors associated with pro-inflammatory activation of CD8/CD26 cells, such as tumor necrosis factor-alpha (TNFalpha), granzyme B, and interferon gamma (IFNgamma). The number of CD8/CD26 cells correlated directly with quantitative muscle testing (QMT) in DMD subjects. Since CD26 mediates binding of adenosine deaminase (ADA) to the T cell surface, we tested ADA-binding capacity of CD8/CD26 cells and the activity of bound ADA. We found that mononuclear cells (MNC) obtained from DMD subjects with an increased number of CD8/CD26 T cells had a greater capacity to bind ADA. In addition, these MNC demonstrated increased hydrolytic deamination of adenosine to inosine. Altogether, our data demonstrated that (1) an increased number of circulating CD8/CD26 T cells is associated with preservation of muscle strength in DMD subjects, and (2) CD8/CD26 T cells from DMD subjects mediated degradation of adenosine by adenosine deaminase. These results support a role for T cells in slowing the decline in skeletal muscle function, and a need for further investigation into contribution of CD8/CD26 T cells in the regulation of chronic inflammation associated with DMD. PMID- 29326590 TI - P2X4 Receptor in Silico and Electrophysiological Approaches Reveal Insights of Ivermectin and Zinc Allosteric Modulation. AB - Protein allosteric modulation is a pillar of metabolic regulatory mechanisms; this concept has been extended to include ion channel regulation. P2XRs are ligand-gated channels activated by extracellular ATP, sensitive to trace metals and other chemicals. By combining in silico calculations with electrophysiological recordings, we investigated the molecular basis of P2X4R modulation by Zn(II) and ivermectin, an antiparasite drug currently used in veterinary medicine. To this aim, docking studies, molecular dynamics simulations and non-bonded energy calculations for the P2X4R in the apo and holo states or in the presence of ivermectin and/or Zn(II) were accomplished. Based on the crystallized Danio rerio P2X4R, the rat P2X4R, P2X2R, and P2X7R structures were modeled, to determine ivermectin binding localization. Calculations revealed that its allosteric site is restricted to transmembrane domains of the P2X4R; the role of Y42 and W46 plus S341 and non-polar residues were revealed as essential, and are not present in the homologous P2X2R or P2X7R transmembrane domains. This finding was confirmed by preferential binding conformations and electrophysiological data, revealing P2X4R modulator specificity. Zn(II) acts in the P2X4R extracellular domain neighboring the SS3 bridge. Molecular dynamics in the different P2X4R states revealed allosterism-induced stability. Pore and lateral fenestration measurements of the P2X4R showed conformational changes in the presence of both modulators compatible with a larger opening of the extracellular vestibule. Electrophysiological studies demonstrated additive effects in the ATP-gated currents by joint applications of ivermectin plus Zn(II). The C132A P2X4R mutant was insensitive to Zn(II); but IVM caused a 4.9 +/ 0.7-fold increase in the ATP-evoked currents. Likewise, the simultaneous application of both modulators elicited a 7.1 +/- 1.7-fold increase in the ATP gated current. Moreover, the C126A P2X4R mutant evoked similar ATP-gated currents comparable to those of wild-type P2X4R. Finally, a P2X4/2R chimera did not respond to IVM but Zn(II) elicited a 2.7 +/- 0.6-fold increase in the ATP-gated current. The application of IVM plus Zn(II) evoked a 2.7 +/- 0.9-fold increase in the ATP-gated currents. In summary, allosteric modulators caused additive ATP gated currents; consistent with lateral fenestration enlargement. Energy calculations demonstrated a favorable transition of the holo receptor state following both allosteric modulators binding, as expected for allosteric interactions. PMID- 29326592 TI - Drug Repositioning in the Mirror of Patenting: Surveying and Mining Uncharted Territory. PMID- 29326591 TI - Association between Health-Related Quality of Life and Medication Adherence in Pulmonary Tuberculosis in South Africa. AB - Background: Health-related quality of life (HRQOL) and adherence to treatment are two often inter-related concepts that have implications for patient management and care. Tuberculosis (TB) and its treatment present a major public health concern in South Africa. The study aimed to evaluate the association between HRQOL and adherence in TB patients in South Africa. Methods: Four self-reported HRQOL and one self-reported adherence measures were used in an observational longitudinal multicentre study during 6-month standard TB treatment. These included the generic Short-Form 12 items (SF-12) and European Quality of Life 5 dimensions 5 levels (EQ-5D-5L), the disease-specific St. George's Respiratory Questionnaire (SGRQ) and the condition-specific Hospital Anxiety and Depression Scale (HADS) for HRQOL. Adherence was measured by the Morisky Medication Adherence Scale 8 items (MMAS-8). The relationship between both concepts was examined in 131 patients using Spearman's rho correlations, and linear regression models. Results: HRQOL improved over 6-month TB treatment, whereas adherence mean scores stayed constant with participants attaining a medium average level. Around 76% of patients reported to be high adherers and 24% were reporting a medium or low adherence. Associations between HRQOL and adherence were mainly weak. High adherence at treatment start was positively related to improvements in anxiety and depression after 6-month treatment. The overall improvement in pain and discomfort, and psychosocial health aspects over treatment time was positively, but weakly associated with adherence at 6 months of treatment. Conclusion: A positive relationship exists between adherence and HRQOL in TB in a South African setting, but this relationship was very weak, most likely because HRQOL is affected by a number of different factors and not limited to effects of adherence. Therefore, management of TB patients should, besides adequate drug treatment, address the specific mental and psychosocial needs. PMID- 29326593 TI - BOKP: A DNA Barcode Reference Library for Monitoring Herbal Drugs in the Korean Pharmacopeia. AB - Herbal drug authentication is an important task in traditional medicine; however, it is challenged by the limitations of traditional authentication methods and the lack of trained experts. DNA barcoding is conspicuous in almost all areas of the biological sciences and has already been added to the British pharmacopeia and Chinese pharmacopeia for routine herbal drug authentication. However, DNA barcoding for the Korean pharmacopeia still requires significant improvements. Here, we present a DNA barcode reference library for herbal drugs in the Korean pharmacopeia and developed a species identification engine named KP-IDE to facilitate the adoption of this DNA reference library for the herbal drug authentication. Using taxonomy records, specimen records, sequence records, and reference records, KP-IDE can identify an unknown specimen. Currently, there are 6,777 taxonomy records, 1,054 specimen records, 30,744 sequence records (ITS2 and psbA-trnH) and 285 reference records. Moreover, 27 herbal drug materials were collected from the Seoul Yangnyeongsi herbal medicine market to give an example for real herbal drugs authentications. Our study demonstrates the prospects of the DNA barcode reference library for the Korean pharmacopeia and provides future directions for the use of DNA barcoding for authenticating herbal drugs listed in other modern pharmacopeias. PMID- 29326594 TI - The Gastric Ganglion of Octopus vulgaris: Preliminary Characterization of Gene- and Putative Neurochemical-Complexity, and the Effect of Aggregata octopiana Digestive Tract Infection on Gene Expression. AB - The gastric ganglion is the largest visceral ganglion in cephalopods. It is connected to the brain and is implicated in regulation of digestive tract functions. Here we have investigated the neurochemical complexity (through in silico gene expression analysis and immunohistochemistry) of the gastric ganglion in Octopus vulgaris and tested whether the expression of a selected number of genes was influenced by the magnitude of digestive tract parasitic infection by Aggregata octopiana. Novel evidence was obtained for putative peptide and non peptide neurotransmitters in the gastric ganglion: cephalotocin, corticotrophin releasing factor, FMRFamide, gamma amino butyric acid, 5-hydroxytryptamine, molluscan insulin-related peptide 3, peptide PRQFV-amide, and tachykinin-related peptide. Receptors for cholecystokininA and cholecystokininB, and orexin2 were also identified in this context for the first time. We report evidence for acetylcholine, dopamine, noradrenaline, octopamine, small cardioactive peptide related peptide, and receptors for cephalotocin and octopressin, confirming previous publications. The effects of Aggregata observed here extend those previously described by showing effects on the gastric ganglion; in animals with a higher level of infection, genes implicated in inflammation (NFkappaB, fascin, serpinB10 and the toll-like 3 receptor) increased their relative expression, but TNF-alpha gene expression was lower as was expression of other genes implicated in oxidative stress (i.e., superoxide dismutase, peroxiredoxin 6, and glutathione peroxidase). Elevated Aggregata levels in the octopuses corresponded to an increase in the expression of the cholecystokininA receptor and the small cardioactive peptide-related peptide. In contrast, we observed decreased relative expression of cephalotocin, dopamine beta-hydroxylase, peptide PRQFV-amide, and tachykinin-related peptide genes. A discussion is provided on (i) potential roles of the various molecules in food intake regulation and digestive tract motility control and (ii) the difference in relative gene expression in the gastric ganglion in octopus with relatively high and low parasitic loads and the similarities to changes in the enteric innervation of mammals with digestive tract parasites. Our results provide additional data to the described neurochemical complexity of O. vulgaris gastric ganglion. PMID- 29326595 TI - Thermo-Sensitive TRP Channels: Novel Targets for Treating Chemotherapy-Induced Peripheral Pain. AB - Abnormal Ca2+ channel physiology, expression levels, and hypersensitivity to heat have been implicated in several pain states following treatment with chemotherapeutic agents. As members of the Ca2+ permeable transient receptor potential (TRP), five of the channels (TRPV1-4 and TRPM2) are activated by different heat temperatures, and two of the channels (TRPA1 and TRPM8) are activated by cold temperature. Accumulating evidences indicates that antagonists of TRPA1 and TRPM8 may protect against cisplatin, oxaliplatin, and paclitaxel induced mitochondrial oxidative stress, inflammation, cold allodynia, and hyperalgesia. TRPV1 was responsible from the cisplatin-induced heat hyperalgesia and mechanical allodynia in the sensory neurons. TRPA1, TRPM8, and TRPV2 protein expression levels were mostly increased in the dorsal root (DRG) and trigeminal ganglia by these treatments. There is a debate on direct or oxaliplatin-induced oxidative cold stress dependent TRPA1 and TRPV4 activation in the DRG. Involvement of molecular pathways such as cysteine groups, glutathione metabolism, anandamide, cAMP, lipopolysaccharide, proteinase-activated receptor 2, and mitogen-activated protein kinase were also indicated in the oxaliplatin and paclitaxel-induced cold allodynia. In this review, we summarized results of five temperature-regulated TRP channels (TRPA1, TRPM8, TRPV1, TRPV2, and TRPV4) as novel targets for treating chemotherapy-induced peripheral pain. PMID- 29326596 TI - An Integrated Analysis of miRNAs and Methylated Genes Encoding mRNAs and lncRNAs in Sheep Breeds with Different Fecundity. AB - In our previous study, we investigated the regulatory relationship between lncRNAs, miRNA, and mRNAs in an effort to shed light onto the regulatory mechanisms involved in sheep fecundity. As an extension of this study, here, we aimed to identify potential regulators of sheep fecundity using a genome-wide analysis of miRNAs and the methylated genes encoding mRNAs and lncRNAs in the ovaries of Dorset sheep (low fecundity) and Small Tail Han ewes (high fecundity) with the genotype BB (Han BB) and the genotype ++ (Han ++) by performing RNA-Seq and MeDIP-Seq analyses. Methylated coding-non-coding gene co-expression networks for Han and Dorset sheep were constructed using the methylated genes encoding the differentially expressed mRNAs and lncRNAs identified in this study. In the Han BB vs. Dorset comparison, the lncRNAs TTC26 and MYH15 had the largest degree. Similarly, the lncRNA NYAP1 had the largest degree in the Han ++ vs. Dorset comparison. None of the methylated genes encoding lncRNAs were co-expressed with the methylated genes encoding mRNAs in the Han BB vs. Han ++ comparison. The methylated genes encoding lncRNAs identified here may play a vital regulatory role in sheep breeding. Our results suggest that miRNAs might play a key role in sheep prolificacy by regulating target genes related to thyroid hormone synthesis, and methylated genes encoding lncRNAs associated with tight junctions might contribute to the high breeding rate in Han sheep. These findings may contribute to a deeper understanding of sheep prolificacy. PMID- 29326597 TI - Genome Wide Mapping of Peptidases in Rhodnius prolixus: Identification of Protease Gene Duplications, Horizontally Transferred Proteases and Analysis of Peptidase A1 Structures, with Considerations on Their Role in the Evolution of Hematophagy in Triatominae. AB - Triatominae is a subfamily of the order Hemiptera whose species are able to feed in the vertebrate blood (i.e., hematophagy). This feeding behavior presents a great physiological challenge to insects, especially in Hemipteran species with a digestion performed by lysosomal-like cathepsins instead of the more common trypsin-like enzymes. With the aim of having a deeper understanding of protease involvement in the evolutionary adaptation for hematophagy in Hemipterans, we screened peptidases in the Rhodnius prolixus genome and characterized them using common blast (NCBI) and conserved domain analyses (HMMER/blast manager software, FAT, plus PFAM database). We compared the results with available sequences from other hemipteran species and with 18 arthropod genomes present in the MEROPS database. Rhodnius prolixus contains at least 433 protease coding genes, belonging to 71 protease families. Seven peptidase families in R. prolixus presented higher gene numbers when compared to other arthropod genomes. Further analysis indicated that a gene expansion of the protease family A1 (Eukaryotic aspartyl protease, PF00026) might have played a major role in the adaptation to hematophagy since most of these peptidase genes seem to be recently acquired, are expressed in the gut and present putative secretory pathway signal peptides. Besides that, most R. prolixus A1 peptidases showed high frequencies of basic residues at the protein surface, a typical structural signature of Cathepsin D like proteins. Other peptidase families expanded in R. prolixus (i.e., C2 and M17) also presented significant differences between hematophagous (higher number of peptidases) and non-hematophagous species. This study also provides evidence for gene acquisition from microorganisms in some peptidase families in R. prolixus: (1) family M74 (murein endopeptidase), (2) family S29 (Hepatitis C virus NS3 protease), and (3) family S24 (repressor LexA). This study revealed new targets for studying the adaptation of these insects for digestion of blood meals and their competence as vectors of Chagas disease. PMID- 29326599 TI - Nfu1 Mediated ROS Removal Caused by Cd Stress in Tegillarca granosa. AB - The blood clam Tegillarca granosa, a eukaryotic bottom-dwelling bivalve species has a strong ability to tolerate and accumulate cadmium. In our previous study, Nfu1 (iron-sulfur cluster scaffold protein), which is involved in Fe-S cluster biogenesis, was shown to be significantly up-regulated under Cd stress, as determined by proteomic analysis. To investigate the function of Nfu1 in cadmium (Cd) detoxification, the function of blood clam Nfu1 (designated as Tg-Nfu1) was investigated by integrated molecular and protein approaches. The full-length cDNA of Tg-Nfu1 is 1167 bp and encodes a protein of 272 amino acid residues. The deduced Tg-Nfu1 protein is 30 kDa contains a conserved Nfu-N domain and a Fe-S cluster binding motif (C-X-X-C). qRT-PCR analysis revealed that Tg-Nfu1 was ubiquitously expressed in all examined tissues; it was up-regulated in the hepatopancreas and gill, and kept a high level from 9 to 24 h after Cd exposure (250 MUg/L). Western blot analysis further revealed that the Tg-Nfu1 protein was also highly expressed in the hepatopancreas and gill after 24 h of Cd stress. Further functional analysis showed that the production of ROS was increased and Cu/ZnSOD activity was inhibited in blood clam, treated with the specific Nfu1 siRNA and Cd stress, respectively. These results suggest that Tg-Nfu1 could protect blood clam from oxidative damage caused by Cd stress. PMID- 29326598 TI - Connexins in the Central Nervous System: Physiological Traits and Neuroprotective Targets. AB - Cell-to-cell interaction and cell-to-extracellular environment communication are emerging as new therapeutic targets in neurodegenerative disorders. Dynamic expression of connexins leads to distinctive hemichannels and gap junctions, characterized by cell-specific conduction, exchange of stimuli or metabolites, and particular channel functions. Herein, we briefly reviewed classical physiological traits and functions of connexins, hemichannels, and gap junctions, in order to discuss the controversial role of these proteins and their mediated interactions during neuroprotection, with a particular focus on Cx43-based channels. We pointed out the contribution of connexins in neural cells populations during neurodegenerative processes to explore potential neuroprotective therapeutic applications. PMID- 29326600 TI - Exercise-Induced Hypertrophic and Oxidative Signaling Pathways and Myokine Expression in Fast Muscle of Adult Zebrafish. AB - Skeletal muscle is a plastic tissue that undergoes cellular and metabolic adaptations under conditions of increased contractile activity such as exercise. Using adult zebrafish as an exercise model, we previously demonstrated that swimming training stimulates hypertrophy and vascularization of fast muscle fibers, consistent with the known muscle growth-promoting effects of exercise and with the resulting increased aerobic capacity of this tissue. Here we investigated the potential involvement of factors and signaling mechanisms that could be responsible for exercise-induced fast muscle remodeling in adult zebrafish. By subjecting zebrafish to swimming-induced exercise, we observed an increase in the activity of mammalian target of rapamycin (mTOR) and Mef2 protein levels in fast muscle. We also observed an increase in the protein levels of the mitotic marker phosphorylated histone H3 that correlated with an increase in the protein expression levels of Pax7, a satellite-like cell marker. Furthermore, the activity of AMP-activated protein kinase (AMPK) was also increased by exercise, in parallel with an increase in the mRNA expression levels of pgc1alpha and also of pparda, a beta-oxidation marker. Changes in the mRNA expression levels of slow and fast myosin markers further supported the notion of an exercise-induced aerobic phenotype in zebrafish fast muscle. The mRNA expression levels of il6, il6r, apln, aplnra and aplnrb, sparc, decorin and igf1, myokines known in mammals to be produced in response to exercise and to signal through mTOR/AMPK pathways, among others, were increased in fast muscle of exercised zebrafish. These results support the notion that exercise increases skeletal muscle growth and myogenesis in adult zebrafish through the coordinated activation of the mTOR-MEF2 and AMPK PGC1alpha signaling pathways. These results, coupled with altered expression of markers for oxidative metabolism and fast-to-slow fiber-type switch, also suggest improved aerobic capacity as a result of swimming-induced exercise. Finally, the induction of myokine expression by swimming-induced exercise support the hypothesis that these myokines may have been produced and secreted by the exercised zebrafish muscle and acted on fast muscle cells to promote metabolic remodeling. These results support the use of zebrafish as a suitable model for studies on muscle remodeling in vertebrates, including humans. PMID- 29326601 TI - The Role of TonB Gene in Edwardsiella ictaluri Virulence. AB - Edwardsiella ictaluri is a Gram-negative facultative intracellular pathogen that causes enteric septicemia in catfish (ESC). Stress factors including poor water quality, poor diet, rough handling, overcrowding, and water temperature fluctuations increase fish susceptibility to ESC. The TonB energy transducing system (TonB-ExbB-ExbD) and TonB-dependent transporters of Gram-negative bacteria support active transport of scarce resources including iron, an essential micronutrient for bacterial virulence. Deletion of the tonB gene attenuates virulence in several pathogenic bacteria. In the current study, the role of TonB (NT01EI_RS07425) in iron acquisition and E. ictaluri virulence were investigated. To accomplish this, the E. ictaluri tonB gene was in-frame deleted. Growth kinetics, iron utilization, and virulence of the EiDeltatonB mutant were determined. Loss of TonB caused a significant reduction in bacterial growth in iron-depleted medium (p > 0.05). The EiDeltatonB mutant grew similarly to wild type E. ictaluri when ferric iron was added to the iron-depleted medium. The EiDeltatonB mutant was significantly attenuated in catfish compared with the parent strain (21.69 vs. 46.91% mortality). Catfish surviving infection with EiDeltatonB had significant protection against ESC compared with naive fish (100 vs. 40.47% survival). These findings indicate that TonB participates in pathogenesis of ESC and is an important E. ictaluri virulence factor. PMID- 29326602 TI - Physical Capacity and Energy Expenditure of Cavers. AB - Caves are an extreme environment for humans because of the high humidity, mud, darkness, and slippery conditions. Explorations can last many hours or even days, and require extensive climbing and ropework. Very little is known about the physical capacity of cavers and their energy expenditure (EE) during caving. The physical capacity of 17 (7 females) expert cavers (age 43.9 +/- 7.3 years) was assessed during an incremental cycle-ergometer test (IET) with gas exchange analysis. Moreover, a wearable metabolic band (Armband Fit Core) was used to estimate their EE during caving. In terms of physical capacity, the IET showed that cavers had a maximum oxygen uptake (VO2max) of 2,248.7 +/- 657.8 ml.min-1 (i.e., 32.4 +/- 6.4 ml.kg-1.min-1), while anaerobic threshold (AT) occurred on average at 74.5% of VO2max. Results from caving sessions provided an average time spent in cave of 9.4 +/- 1.2 h while the average EE was 268.8 +/- 54.8 kcal.h-1, which corresponded to about 40% of VO2max measured during IET. A mean distance of 10.6 +/- 2.2 km was covered by subjects. Data from the present investigation provide evidence that cavers have a level of aerobic physical capacity only slightly higher than that of sedentary people, thereby suggesting that a high aerobic fitness is not needed by cavers. Moreover, during caving the EE was on average well below the level of AT. However, in absolute terms, the total EE was elevated (i.e., 2,672.3 +/- 576 kcal in total) due to the long time spent in caving. PMID- 29326603 TI - The Training Characteristics of the World's Most Successful Female Cross-Country Skier. AB - The main aim of this study was to investigate the training characteristics of the most successful female cross-country skier ever during the best period of her career. The participant won six gold medals at the Olympic Games, 18 gold medals at the World Championship, and 110 World Cup victories. Day-to-day training diary data, interviews, and physiological tests were analyzed. Training data was systemized by training form (endurance, strength, and speed), intensity [low- (LIT), moderate- (MIT), and high-intensity training (HIT)], and mode (running, cycling, and skiing/roller skiing), followed by a division into different periodization phases. Specific sessions utilized in the various periodization periods and the day-to-day periodization of training, in connection with altitude camps and tapering toward major championships, were also analyzed. Following a 12 year nonlinear increase in training load, the annual training volume during the five consecutive successful years stabilized at 937 +/- 25 h, distributed across 543 +/- 9 sessions. During these 5 years, total training time was distributed as 90.6% endurance-, 8.0% strength-, and 1.4% speed-training, with endurance training time consisting of 92.3 +/- 0.3% LIT, 2.9 +/- 0.5% MIT, and 4.8 +/- 0.5% HIT. Total LIT-time consisted of 21% warm-up, 14% sessions <90 min, and 65% long duration sessions >90 min. While the total number of LIT sessions remained stable across phases (32 sessions), total LIT-time was reduced from GP (76 h/month) to SP (68 h/month) and CP (55 h/month). MIT-time decreased from GP (2.8 h/month) to SP (2.2 h/month) and CP (1 h/month). HIT-time increased from GP (2.8 h/month) to SP (3.2 h/month) and CP (4.7 h/month). Altitude training accounted for 18-25% of annual training volume and performed across relatively short training camps (<=16 days) with a clear reduction of HIT training, but increased total and LIT volume compared to sea-level training. Training before international championships included a 2-week increase in LIT and strength volume followed by a gradual reduction of training volume and increased HIT during the last week. This study provides unique data on the world's most successful female cross-country skier's long-term training process, including novel information about the distribution of and interplay between sessions of different forms, intensities, and exercise modes throughout the annual season. PMID- 29326604 TI - A Shift in the Thermoregulatory Curve as a Result of Selection for High Activity Related Aerobic Metabolism. AB - According to the "aerobic capacity model," endothermy in birds and mammals evolved as a result of natural selection favoring increased persistent locomotor activity, fuelled by aerobic metabolism. However, this also increased energy expenditure even during rest, with the lowest metabolic rates occurring in the thermoneutral zone (TNZ) and increasing at ambient temperatures (Ta) below and above this range, depicted by the thermoregulatory curve. In our experimental evolution system, four lines of bank voles (Myodes glareolus) have been selected for high swim-induced aerobic metabolism and four unselected lines have been maintained as a control. In addition to a 50% higher rate of oxygen consumption during swimming, the selected lines have also evolved a 7.3% higher mass-adjusted basal metabolic rate. Therefore, we asked whether voles from selected lines would also display a shift in the thermoregulatory curve and an increased body temperature (Tb) during exposure to high Ta. To test these hypotheses we measured the RMR and Tb of selected and control voles at Ta from 10 to 34 degrees C. As expected, RMR within and around the TNZ was higher in selected lines. Further, the Tb of selected lines within the TNZ was greater than the Tb of control lines, particularly at the maximum measured Ta of 34 degrees C, suggesting that selected voles are more prone to hyperthermia. Interestingly, our results revealed that while the slope of the thermoregulatory curve below the lower critical temperature (LCT) is significantly lower in the selected lines, the LCT (26.1 degrees C) does not differ. Importantly, selected voles also evolved a higher maximum thermogenesis, but thermal conductance did not increase. As a consequence, the minimum tolerated temperature, calculated from an extrapolation of the thermoregulatory curve, is 8.4 degrees C lower in selected (-28.6 degrees C) than in control lines (-20.2 degrees C). Thus, selection for high aerobic exercise performance, even though operating under thermally neutral conditions, has resulted in the evolution of increased cold tolerance, which, under natural conditions, could allow voles to inhabit colder environments. Further, the results of the current experiment support the assumptions of the aerobic capacity model of the evolution of endothermy. PMID- 29326605 TI - Variability in Tidal Volume Affects Lung and Cardiovascular Function Differentially in a Rat Model of Experimental Emphysema. AB - In experimental elastase-induced emphysema, mechanical ventilation with variable tidal volumes (VT) set to 30% coefficient of variation (CV) may result in more homogenous ventilation distribution, but might also impair right heart function. We hypothesized that a different CV setting could improve both lung and cardiovascular function. Therefore, we investigated the effects of different levels of VT variability on cardiorespiratory function, lung histology, and gene expression of biomarkers associated with inflammation, fibrogenesis, epithelial cell damage, and mechanical cell stress in this emphysema model. Wistar rats (n = 35) received repeated intratracheal instillation of porcine pancreatic elastase to induce emphysema. Seven animals were not ventilated and served as controls (NV). Twenty-eight animals were anesthetized and assigned to mechanical ventilation with a VT CV of 0% (BASELINE). After data collection, animals (n = 7/group) were randomly allocated to VT CVs of 0% (VV0); 15% (VV15); 22.5% (VV22.5); or 30% (VV30). In all groups, mean VT was 6 mL/kg and positive end expiratory pressure was 3 cmH2O. Respiratory system mechanics and cardiac function (by echocardiography) were assessed continuously for 2 h (END). Lung histology and molecular biology were measured post-mortem. VV22.5 and VV30 decreased respiratory system elastance, while VV15 had no effect. VV0, VV15, and VV22.5, but not VV30, increased pulmonary acceleration time to pulmonary ejection time ratio. VV22.5 decreased the central moment of the mean linear intercept (D2 of Lm) while increasing the homogeneity index (1/beta) compared to NV (77 +/- 8 MUm vs. 152 +/- 45 MUm; 0.85 +/- 0.06 vs. 0.66 +/- 0.13, p < 0.05 for both). Compared to NV, VV30 was associated with higher interleukin-6 expression. Cytokine-induced neutrophil chemoattractant-1 expression was higher in all groups, except VV22.5, compared to NV. IL-1beta expression was lower in VV22.5 and VV30 compared to VV0. IL-10 expression was higher in VV22.5 than NV. Club cell protein 16 expression was higher in VV22.5 than VV0. SP-D expression was higher in VV30 than NV, while SP-C was higher in VV30 and VV22.5 than VV0. In conclusion, VV22.5 improved respiratory system elastance and homogeneity of airspace enlargement, mitigated inflammation and epithelial cell damage, while avoiding impairment of right cardiac function in experimental elastase-induced emphysema. PMID- 29326606 TI - ACTN3: More than Just a Gene for Speed. AB - Over the last couple of decades, research has focused on attempting to understand the genetic influence on sports performance. This has led to the identification of a number of candidate genes which may help differentiate between elite and non elite athletes. One of the most promising genes in that regard is ACTN3, which has commonly been referred to as "a gene for speed". Recent research has examined the influence of this gene on other performance phenotypes, including exercise adaptation, exercise recovery, and sporting injury risk. In this review, we identified 19 studies exploring these phenotypes. Whilst there was large variation in the results of these studies, as well as extremely heterogeneous cohorts, there is overall a tentative consensus that ACTN3 genotype can impact the phenotypes of interest. In particular, the R allele of a common polymorphism (R577X) is associated with enhanced improvements in strength, protection from eccentric training-induced muscle damage, and sports injury. This illustrates that ACTN3 is more than just a gene for speed, with potentially wide-ranging influence on muscle function, knowledge of which may aid in the future personalization of exercise training programmes. PMID- 29326607 TI - CYP1A1 Ile462Val Polymorphism Is Associated with Cervical Cancer Risk in Caucasians Not Asians: A Meta-Analysis. AB - Objective: Previous studies have reported that Ile462Val polymorphism in the gene Cytochrome P450 1A1 (CYP1A1) is associated with the risk of cervical cancer, but inconsistent results have emerged. Hence, we performed this updated and cumulative meta-analysis to ascertain a more accurate association between CYP1A1 Ile462Val polymorphism and risk of cervical cancer. Methods: Studies involving the CYP1A1 Ile462Val polymorphism associated with cervical cancer risk were searched from the databases of PubMed, Scopus, ScienceDirect, and Chinese National Knowledge Infrastructure (CNKI). The strength of correlation was evaluated through calculating summary odds ratios (ORs) with the corresponding 95% confidence intervals (95% CIs). Subgroup analyses according to ethnicity, source of control and HWE were completed to further explore specific association between the polymorphism and the cancer risk. Results: Altogether, 11 eligible case-control studies were ultimately encompassed into the current meta-analysis, with 1,932 patients and 2,039 healthy controls. The total analysis revealed a borderline relationship between CYP1A1 Ile462Val polymorphism and cervical cancer risk in general population. Interestingly, after subgroup analyses based on ethnicity and source of control, the polymorphism increased the susceptibility of cervical cancer in Caucasian (G vs. A: OR = 1.97, 95% CI = 1.24-3.13; GG vs. AA: OR = 3 .24, 95% CI = 1.24-8.46; GA vs. AA: OR = 1.62, 95% CI = 1.25-2.10; GA+GG vs. AA: OR = 1.68, 95% CI = 1.16-2.43; GG vs. AA+GA: OR = 2.73, 95% CI = 1.05 7.10) and population-based (G vs. A: OR = 1.49, 95% CI = 1.10-2.02; GA vs. AA: OR = 1.41, 95% CI = 1.20-1.67; GA+GG vs. AA: OR = 1.40, 95% CI = 1.19-1.64) groups. Conclusion: The CYP1A1 Ile462Val polymorphism may enhance the susceptibility to cervical cancer in Caucasian females. PMID- 29326608 TI - Identification and Expression Patterns of Putative Diversified Carboxylesterases in the Tea Geometrid Ectropis obliqua Prout. AB - Carboxylesterases (CXEs) belong to a family of metabolic enzymes. Some CXEs act as odorant-degrading enzymes (ODEs), which are reportedly highly expressed in insect olfactory organs and participate in the rapid deactivation of ester pheromone components and plant volatiles. The tea geometrid Ectropis obliqua Prout produces sex pheromones consisting of non-ester functional compounds but relies heavily on acetic ester plant volatiles to search for host plants and locate oviposition sites. However, studies characterizing putative candidate ODEs in this important tea plant pest are still relatively scarce. In the present study, we identified 35 candidate EoblCXE genes from E. obliqua chemosensory organs based on previously obtained transcriptomic data. The deduced amino acid sequences possessed the typical characteristics of the insect CXE family, including oxyanion hole residues, the Ser-Glu-His catalytic triad, and the Ser active included in the conserved pentapeptide characteristic of esterases, Gly-X Ser-X-Gly. Phylogenetic analyses revealed that the EoblCXEs were diverse, belonging to several different insect esterase clades. Tissue- and sex-related expression patterns were studied via reverse-transcription and quantitative real time polymerase chain reaction analyses (RT- and qRT-PCR). The results showed that 35 EoblCXE genes presented a diversified expression profile; among these, 12 EoblCXEs appeared to be antenna-biased, two EoblCXEs were non-chemosensory organ biased, 12 EoblCXEs were ubiquitous, and nine EoblCXEs showed heterogeneous expression levels among different tissues. Intriguingly, two EoblCXE genes, EoblCXE7 and EoblCXE13, were not only strongly localized to antennal sensilla tuned to odorants, such as the sensilla trichodea (Str I and II) and sensilla basiconica (Sba), but were also expressed in the putative gustatory sensilla styloconica (Sst), indicating that these two CXEs might play multiple physiological roles in the E. obliqua chemosensory processing system. This study provides the first elucidation of CXEs in the chemosensory system of a geometrid moth species and will enable a more comprehensive understanding of the functions of insect CXEs across lepidopteran species. PMID- 29326609 TI - A Biomarker to Differentiate between Primary and Cocaine-Induced Major Depression in Cocaine Use Disorder: The Role of Platelet IRAS/Nischarin (I1-Imidazoline Receptor). AB - The association of cocaine use disorder (CUD) and comorbid major depressive disorder (MDD; CUD/MDD) is characterized by high prevalence and poor treatment outcomes. CUD/MDD may be primary (primary MDD) or cocaine-induced (CUD-induced MDD). Specific biomarkers are needed to improve diagnoses and therapeutic approaches in this dual pathology. Platelet biomarkers [5-HT2A receptor and imidazoline receptor antisera selected (IRAS)/nischarin] were assessed by Western blot in subjects with CUD and primary MDD (n = 16) or CUD-induced MDD (n = 9; antidepressant free, AD-; antidepressant treated, AD+) and controls (n = 10) at basal level and/or after acute tryptophan depletion (ATD). Basal platelet 5-HT2A receptor (monomer) was reduced in comorbid CUD/MDD subjects (all patients: 43%) compared to healthy controls, and this down-regulation was independent of AD medication (decreases in AD-: 47%, and in AD+: 40%). No basal differences were found for IRAS/nischarin contents in AD+ and AD- comorbid CUD/MDD subjects. The comparison of IRAS/nischarin in the different subject groups during/after ATD showed opposite modulations (i.e., increases and decreases) in response to low plasma tryptophan levels with significant differences discriminating between the subgroups of CUD with primary MDD and CUD-induced MDD. These specific alterations suggested that platelet IRAS/nischarin might be useful as a biomarker to discriminate between primary and CUD-induced MDD in this dual pathology. PMID- 29326610 TI - Posttraumatic Stress Disorder and Related Disorders among Female Yazidi Refugees following Islamic State of Iraq and Syria Attacks-A Case Series and Mini-Review. AB - Following the severe attacks by the so-called "Islamic State of Iraq and Syria" on the Yazidi population, which started in summer 2014, the state government of Baden-Wurttemberg, Germany, funded a Special-Quota Project to bring 1,000 very ill or left-behind women and children who were being held hostage to 22 cities and towns in Baden-Wurttemberg to receive integrated care. Here, we report for the first time on the cases of four Yazidi women living in Ulm, Germany, focusing on the clinically observed and psychometrically assessed mental phenomena or disorders. Our primary aim was to explore what International Classification of Diseases, 10th Revision diagnoses are present in this population. Although highly traumatized, these women were suffering primarily from adjustment disorder rather than posttraumatic stress disorder according to official classification systems. Despite their symptoms of depression and anxiety, the women's responses to self assessment questionnaires provided no evidence of compulsion, somatization, or eating disorders. The results suggest that further investigation of the individual-level effects of rape and torture, as well the historic, systemic, and collective effects, e.g., on families and societies, is required. PMID- 29326612 TI - Dysfunctional Prefrontal Function Is Associated with Impulsivity in People with Internet Gaming Disorder during a Delay Discounting Task. AB - Internet gaming disorder (IGD), defined as the persistent use of online games with ignorance of adverse consequences, has increasingly raised widespread public concerns. This study aimed at elucidating the precise mechanisms underlying IGD by comparing intertemporal decision-making process between 18 IGD participants and 21 matched healthy controls (HCs). Both behavioral and fMRI data were recorded from a delay discounting task. At the behavioral level, the IGD showed a higher discount rate k than HC; and in IGD group, both the reaction time (delay - immediate) and the discount rate k were significantly positively correlated with the severity of IGD. At the neural level, the IGD exhibited reduced brain activations in the dorsolateral prefrontal cortex and bilateral inferior frontal gyrus compared to HC during performing delay trials relative to immediate ones. Taken together, the results suggested that IGD showed deficits in making decisions and tended to pursuit immediate satisfaction. The underlying mechanism arises from the deficient ability in evaluating between delayed reward and immediate satisfaction, and the impaired ability in impulse inhibition, which may be associated with the dysfunction of the prefrontal activation. These might be the reason why IGD continue playing online games in spite of facing severe negative consequences. PMID- 29326613 TI - French Translation and Validation of Three Scales Evaluating Stigma in Mental Health. AB - Objective: The concept of stigma refers to problems of knowledge (ignorance), attitudes (prejudice), and behavior (discrimination). Stigma may hinder access to care, housing, and work. In the context of implementation of programs such as "housing first" or "individual placement and support" in French speaking regions, validated instruments measuring stigma are necessary. "Attitudes to Mental Illness 2011" is a questionnaire that includes three scales measuring stigma through these three dimensions. This study aimed to translate, adapt, and validate these three scales in French. Methods: The "Attitudes to Mental Illness 2011" questionnaire was translated into French and back-translated into English by an expert. Two hundred and sixty-eight nursing students completed the questionnaire. Content validity, face validity, internal validity, and convergent validity were assessed. Long-term reliability was also estimated over a three month period. Results: Experts and participants found that the questionnaire's content validity and face validity were appropriate. The internal validities of the three scales were also considered adequate. Convergent validity indicated that the scales did indeed measure what they were supposed to. Long-term stability estimates were moderate; this pattern of results suggested that the construct targeted by the three scales is adequately measured but does not necessarily represent stable and enduring traits. Conclusion: Because of their good psychometric properties, these three scales can be used in French, either separately, to measure one specific dimension of stigma, or together, to assess stigma in its three dimensions. This would seem of paramount importance in evaluating campaigns against stigma since it allows measures to be adapted according to campaign goals and the target population. PMID- 29326611 TI - Type 2 Neural Progenitor Cell Activation Drives Reactive Neurogenesis after Binge Like Alcohol Exposure in Adolescent Male Rats. AB - Excessive alcohol consumption during adolescence remains a significant health concern as alcohol drinking during adolescence increases the likelihood of an alcohol use disorder in adulthood by fourfold. Binge drinking in adolescence is a particular problem as binge-pattern consumption is the biggest predictor of neurodegeneration from alcohol and adolescents are particularly susceptible to the damaging effects of alcohol. The adolescent hippocampus, in particular, is highly susceptible to alcohol-induced structural and functional effects, including volume and neuron loss. However, hippocampal structure and function may recover with abstinence and, like in adults, a reactive burst in hippocampal neurogenesis in abstinence may contribute to that recovery. As the mechanism of this reactive neurogenesis is not known, the current study investigated potential mechanisms of reactive neurogenesis in binge alcohol exposure in adolescent, male rats. In a screen for cell cycle perturbation, a dramatic increase in the number of cells in all phases of the cycle was observed at 7 days following binge ethanol exposure as compared to controls. However, the proportion of cells in each phase was not different between ethanol-exposed rats and controls, indicating that cell cycle dynamics are not responsible for the reactive burst in neurogenesis. Instead, the marked increase in hippocampal proliferation was shown to be due to a twofold increase in proliferating progenitor cells, specifically an increase in cells colabeled with the progenitor cell marker Sox2 and S-phase (proliferation) marker, BrdU, in ethanol-exposed rats. To further characterize the individual subtypes of neural progenitor cells (NPCs) affected by adolescent binge ethanol exposure, a fluorescent quadruple labeling technique was utilized to differentiate type 1, 2a, 2b, and 3 progenitor cells simultaneously. At one week into abstinence, animals in the ethanol exposure groups had an increase in proliferating type 2 (intermediate progenitors) and type 3 (neuroblast) progenitors but not type 1 neural stem cells. These results together suggest that activation of type 2 NPCs out of quiescence is likely the primary mechanism for reactive hippocampal neurogenesis following adolescent alcohol exposure. PMID- 29326615 TI - Parenting, Peer Relationships, Academic Self-efficacy, and Academic Achievement: Direct and Mediating Effects. AB - The aim of the present study is to analyze the relation between authoritative and permissive parenting styles with the kinds of adolescent peer relationships (attachment, victimization, or aggression), and of the latter ones, in turn, with academic self-efficacy, and academic performance, in three waves that range from the early-mid adolescence to late adolescence. Five hundred Spanish adolescents, of both sexes, participated in a three-wave longitudinal study in Valencia, Spain. In the first wave, adolescents were either in the third year of secondary school or the fourth year of secondary school. The mean age in the first wave was 14.70 (SD = 0.68; range = 13-16 years). Child Report of Parental Behavior Inventory (Schaefer, 1965; Samper et al., 2006), Peer Attachment (from the Inventory of Parent and Peer Attachment by Armsden and Greenberg, 1987), Victimization (from the Kit at School, Buhs et al., 2010), Physical and Verbal Aggression Scale (Caprara and Pastorelli, 1993; Del Barrio et al., 2001), items of academic self-efficacy, and items of academic performance were administered. Structural equations modeling-path analysis was employed to explore the proposed models. The results indicated that parenting styles relate to the way the adolescents develops attachments to their peers and to academic self-efficacy. The mother's permissive style is an important positive predictor of aggressive behavior and a negative predictor of attachment to their peers. At the end, peer relations and academic self-efficacy are mediator variables between parenting styles and academic performance. PMID- 29326614 TI - Prediction Analysis for Transition to Schizophrenia in Individuals at Clinical High Risk for Psychosis: The Relationship of DAO, DAOA, and NRG1 Variants with Negative Symptoms and Cognitive Deficits. AB - Schizophrenia is characterized by positive and negative symptoms and cognitive dysfunction. The glutamate hypothesis of schizophrenia has been hypothesized to explain the negative symptoms and cognitive deficits better than the dopamine hypothesis alone. Therefore, we aimed to evaluate whether glutamatergic variants such as d-amino acid oxidase (DAO), DAO activator (DAOA)/G72, and neuregulin 1 (NRG1) single-nucleotide polymorphisms (SNPs) and their mRNA levels predicted (i) transition to schizophrenia spectrum disorders and (ii) research domain criteria (RDoC) domains, mainly negative valence and cognitive systems. In a 3-year prospective study cohort of 185 individuals (age: 13-35 years) at high risk and ultra-high risk (UHR) for psychosis, we assessed DAO (rs3918347, rs4623951), DAOA (rs778293, rs3916971, rs746187), and NRG1 (rs10503929) SNPs and their mRNA expression. Furthermore, we investigated their association with RDoC domains, mainly negative valence (e.g., anxiety, hopelessness) and cognitive (e.g., perception disturbances, disorganized symptoms) systems. NRG1 rs10503929 CC + CT versus TT genotype carriers experienced significantly more disorganized symptoms. DAOA rs746187 CC versus CT + TT genotype, DAOA rs3916971 TT versus TC + CC genotype, and DAO rs3918347 GA + AA versus GG genotype carriers experienced nominally more hopelessness, visual perception disturbances, and auditory perception disturbances, respectively. The schizophrenia risk G-allele of DAO rs3918347 nominally increased risk for those UHR individuals with attenuated positive symptoms syndrome. No association between DAO, DAOA, NRG1 SNPs, and conversion to schizophrenia spectrum disorders was observed. Our findings suggest that DAO, DAOA, and NRG1 polymorphisms might influence both RDoC negative valence and cognitive systems, but not transition to schizophrenia spectrum disorders. PMID- 29326616 TI - Chilean Adaptation and Validation of the Early Adolescent Temperament Questionnaire-Revised Version. AB - The aim of this study was to develop an adapted version of the Early Adolescent Temperament Questionnaire-Revised (EATQ-R) that would be valid and reliable for assessing temperament and its components in Chileans between 12 and 18 years of age. Originally, Ellis and Rothbart (2001) developed this questionnaire (EATQ-R) to be used in North American adolescents. For the study in Chile, a translation protocol was developed, to maintain the original instrument's cultural and linguistic equivalence in the adapted version. Psychometric properties of the EATQ-R, such as factor structure, internal consistency, and convergent validity, were also assessed. The adaption and validation was carried out in two stages, with two different studies. The first study, which included 612 adolescent students from educational establishments in the cities of Santiago and Concepcion, Chile, developed the Chilean version of the 83-item EATQ-R, which has 13 dimensions, belonging to 4 theoretical factors with adequate internal consistency (Cronbach's alpha = 0.79-0.82). The second study assessed the questionnaire's convergent validity, through its application to 973 adolescent students in Santiago. Results show that the effortful control subscale was significantly inversely related to indicators of adolescent maladjustment, such as substance abuse and behavioral problems. In addition, it was directly associated with indicators of self-concept, including self-esteem and self efficacy. The opposite pattern was observed when considering negative affect. These findings coincide with current knowledge on the relationship between temperament and adjustment in adolescents. PMID- 29326617 TI - Enrichment Effects of Gestures and Pictures on Abstract Words in a Second Language. AB - Laboratory research has demonstrated that multisensory enrichment promotes verbal learning in a foreign language (L2). Enrichment can be done in various ways, e.g., by adding a picture that illustrates the L2 word's meaning or by the learner performing a gesture to the word (enactment). Most studies have tested enrichment on concrete but not on abstract words. Unlike concrete words, the representation of abstract words is deprived of sensory-motor features. This has been addressed as one of the reasons why abstract words are difficult to remember. Here, we ask whether a brief enrichment training by means of pictures and by self-performed gestures also enhances the memorability of abstract words in L2. Further, we explore which of these two enrichment strategies is more effective. Twenty young adults learned 30 novel abstract words in L2 according to three encoding conditions: (1) reading, (2) reading and pairing the novel word to a picture, and (3) reading and enacting the word by means of a gesture. We measured memory performance in free and cued recall tests, as well as in a visual recognition task. Words encoded with gestures were better remembered in the free recall in the native language (L1). When recognizing the novel words, participants made less errors for words encoded with gestures compared to words encoded with pictures. The reaction times in the recognition task did not differ across conditions. The present findings support, even if only partially, the idea that enactment promotes learning of abstract words and that it is superior to enrichment by means of pictures even after short training. PMID- 29326618 TI - The Leadership Lab for Women: Advancing and Retaining Women in STEM through Professional Development. AB - Innovative professional development approaches are needed to address the ongoing lack of women leaders in science, technology, engineering, and math (STEM) careers. Developed from the research on women who persist in engineering and computing professions and essential elements of women's leadership development, the Leadership Lab for Women in STEM Program was launched in 2014. The Leadership Lab was created as a research-based leadership development program, offering 360 degree feedback, coaching, and practical strategies aimed at increasing the advancement and retention of women in the STEM professions. The goal is to provide women with knowledge, tools and a supportive learning environment to help them navigate, achieve, flourish, and catalyze organizational change in male dominated and technology-driven organizations. This article describes the importance of creating unique development experiences for women in STEM fields, the genesis of the Leadership Lab, the design and content of the program, and the outcomes for the participants. PMID- 29326619 TI - Neurophysiological Markers of Emotion Processing in Burnout Syndrome. AB - The substantial body of research employing subjective measures indicates that burnout syndrome is associated with cognitive and emotional dysfunctions. The growing amount of neurophysiological and neuroimaging research helps in broadening existing knowledge of the neural mechanisms underlying core burnout components (emotional exhaustion and depersonalization/cynicism) that are inextricably associated with emotional processing. In the presented EEG study, a group of 93 participants (55 women; mean age = 35.8) were selected for the burnout group or the demographically matched control group on the basis of the results of the Maslach Burnout Inventory - General Survey (MBI-GS) and the Areas of Worklife Survey (AWS). Subjects then participated in an EEG experiment using two experimental procedures: a facial recognition task and viewing of passive pictures. The study focuses on analyzing event-related potentials (ERPs): N170, VPP, EPN, and LPP, as indicators of emotional information processing. Our results show that burnout subjects, as compared to the control group, demonstrate significantly weaker response to affect-evoking stimuli, indexed by a decline in VPP amplitude to emotional faces and decreased EPN amplitude in processing emotional scenes. The analysis of N170 and LPP showed no significant between group difference. The correlation analyses revealed that VPP and EPN, which are ERP components related to emotional processing, are associated with two core burnout symptoms: emotional exhaustion and cynicism. To our knowledge, we are one of the first research groups to use ERPs to demonstrate such a relationship between neurophysiological activity and burnout syndrome in the context of emotional processing. Thus, in conclusion we emphasized that the decreased amplitude of VPP and EPN components in the burnout group may be a neurophysiological manifestation of emotional blunting and may be considered as neurophysiological markers of emotional exhaustion and cynicism. Additionally, we did not observe a decrease in LPP, which may be considered as a marker that significantly differentiates burnout from depression. PMID- 29326620 TI - Perseverative Thinking Questionnaire (PTQ): French Validation of a Transdiagnostic Measure of Repetitive Negative Thinking. AB - Repetitive negative thinking (RNT) is a transdiagnostic process involved in the onset and maintenance of many psychological disorders. The Perseverative Thinking Questionnaire (Ehring et al., 2011) is a content-independent scale composed of 15 items that assesses RNT from a transdiagnostic perspective in both clinical and general populations. The aim of the current research was to translate and validate the French version of the PTQ through two studies (total N = 1016) following the steps for the trans-cultural validation of psychometric instruments (Hambleton et al., 2006). An exploratory factor analysis conducted on a first community sample revealed a latent structure composed of 10 items distributed on one common factor, labeled RNT, and three subfactors that evaluated the repetitive characteristic of RNT, the intrusiveness of RNT and the effect of RNT on mental resources. This factorial structure was confirmed in two confirmatory factor analyses in community and clinical samples. Scale score reliability indices were good and confirmed the validity of the instrument. The French version of the PTQ is a good content-independent instrument to assess RNT in general and clinical populations of French speakers. PMID- 29326621 TI - Editorial: What Next - The Cognition of Sequences. PMID- 29326622 TI - Parental Autonomy Granting and School Functioning among Chinese Adolescents: The Moderating Role of Adolescents' Cultural Values. AB - School adjustment and achievement are important indicators of adolescents' well being; however, few studies have examined the risk and protective factors predicting students' school adjustment and achievement at the individual, familial, and cultural level. The present study examined the influences of individual and familial factors and cultural values on Chinese adolescents' school functioning (e.g., school adjustment and grades). It also tested whether cultural values moderated the relationship between parenting and adolescents' school functioning. Self-report data were collected from a stratified random sample of 2,864 adolescents (51.5% female, mean age = 15.52 years, grade 6th - 12th) from 55 classrooms, in 13 schools in Shanghai, China. Results showed that self-esteem (bse->adj = 0.05, SE = 0.01, p < 0.001; bse->grades = 0.08, SE = 0.02, p < 0.001), parent-adolescent conflict (bconflict->adj = -0.03, SE = 0.00, p < 0.001; bconflict->grades = -0.04, SE = 0.01, p < 0.001), and conformity to parental expectations (bconform->adj = -0.03, SE = 0.02, p < 0.05; bconform >grades = 0.10, SE = 0.04, p < 0.05) all had significant effects on both school adjustment and grades, respectively. More importantly, results showed that independent self-construal moderated the relationship between parental autonomy granting and adolescents' grades (bindepxautom = 0.06, SE = 0.02, p < 0.01). The findings suggest that cultural values may influence adolescents' appraisal of parental autonomy granting, which then impacts their school functioning. PMID- 29326623 TI - Microsatellite Polymorphisms Adjacent to the Oxytocin Receptor Gene in Domestic Cats: Association with Personality? AB - A growing number of studies have explored the oxytocin system in humans and non human animals, and some have found important genetic polymorphisms in the oxytocin receptor gene (OXTR) associated with the bonding system, social behaviors, and personality in several species. Although single nucleotide polymorphisms in OXTR have been well-examined in various species, microsatellites (or short tandem repeats) adjacent to OXTR have rarely been studied, despite some suggestions that microsatellite polymorphisms near genes might play a role in genetic transcription and translation. In this study, we surveyed microsatellites in the upstream, intron, and downstream regions of OXTR in domestic cats (Felis catus). We succeeded in amplifying 5 out of 10 regions, and recognized these five regions as polymorphic. We compared allele frequencies in these five regions between mongrel cats in Japan (n = 100) and cats of 10 pure breeds (n = 40). There were significant differences in allele frequencies between the two populations in all microsatellite regions. Additionally, the owners of mongrel cats answered a comprehensive personality questionnaire, and factor analysis extracted four factors (Openness, Friendliness, Roughness, and Neuroticism). We examined the association between the microsatellite genotypes, age, sex, neutering status, and personality scores. Compared to their counterparts, younger cats tended to score higher on Openness, male cats scored higher on Friendliness, and female and neutered cats scored higher on Roughness. When we divided the sample into three groups depending on the length of alleles, we found a marginally significant association between Friendliness and MS3. Additionally, we found a sex-mediated effect of genotypes in MS4 on Friendliness, resulting in different effects on females and males. Our findings that mongrel cats had longer alleles in MS3 and MS4 than purebred cats, and that those cats tended to score higher on Friendliness, supported the previous findings. However, future studies such as comparison between purebred cats with apparently different origin or personality are required to determine the association of genetic variants in the OXTR with personality. PMID- 29326624 TI - Visual Search for Wines with a Triangle on the Label in a Virtual Store. AB - Two experiments were conducted in a virtual reality (VR) environment in order to investigate participants' in-store visual search for bottles of wines displaying a prominent triangular shape on their label. The experimental task involved virtually moving along a wine aisle in a virtual supermarket while searching for the wine bottle on the shelf that had a different triangle on its label from the other bottles. The results of Experiment 1 revealed that the participants identified the bottle with a downward-pointing triangle on its label more rapidly than when looking for an upward-pointing triangle on the label instead. This finding replicates the downward-pointing triangle superiority (DPTS) effect, though the magnitude of this effect was more pronounced in the first as compared to the second half of the experiment, suggesting a modulating role of practice. The results of Experiment 2 revealed that the DPTS effect was also modulated by the location of the target on the shelf. Interestingly, however, the results of a follow-up survey demonstrate that the orientation of the triangle did not influence the participants' evaluation of the wine bottles. Taken together, these findings reveal how in-store the attention of consumers might be influenced by the design elements in product packaging. These results therefore suggest that shopping in a virtual supermarket might offer a practical means of assessing the shelf standout of product packaging, which has important implications for food marketing. PMID- 29326625 TI - Physical Fitness Levels Do Not Affect Stress Levels in a Sample of Norwegian Adolescents. AB - Physical inactivity, low physical fitness, and perceived stress during adolescence are presumed to be risk factors for various disorders and subjective health complaints. On the other hand, physical activity and physical fitness, as well as mindfulness qualities, are regarded as prerequisites for health and well being in children and adolescent, possibly by moderating the negative effects of stress and protecting against stress-related health complaints. Previous studies have suggested gender differences in the relationship between physical activity/physical fitness and psychological variables. The main objective in this study was to evaluate how physical fitness, along with mindfulness qualities (MAAS-A), pain, and BMI, relate to stress (PSQ) in adolescents. Secondary objectives were to explore the relationship between physical fitness, mindfulness (MAAS-A), and BMI more explicitly in the study sample, as well as to evaluate possible gender differences. The cross-sectional sample included 102 Norwegian pupils in 10th grade (15 or 16 years). Study measurements were four items from the Test of Physical Fitness (TPF), the Norwegian version of the four-factor Perceived Stress Questionnaire (PSQ), the Norwegian version of the Mindful Attention Awareness Scale-Adolescent (MAAS-A), and BMI (recorded in terms of self reported height and weight). Additionally, pain was measured in terms of localization, number of pain sites, duration, and intensity (Visual analogue scale; VAS). According to the regression analyses, physical fitness could not explain any variation in stress among the adolescents. Nevertheless, there were some negative associations between one stress factor (lack of joy) and components of physical fitness at a group level, possibly influenced by conditions not measured in this study. As opposed to physical fitness, mindfulness qualities, and to some degree gender, seemed to explain variation in stress among the adolescents. None of the physical fitness components were associated to mindfulness (MAAS-A), but some components seemed negatively related to BMI, particularly among the males. Among the females, higher physical fitness (in terms of endurance) seemed related to reduced number of pain sites. Of note, the cross-sectional design did not allow us to determine any causal direction among the variables. PMID- 29326626 TI - Relations between Automatically Extracted Motion Features and the Quality of Mother-Infant Interactions at 4 and 13 Months. AB - Bodily movements are an essential component of social interactions. However, the role of movement in early mother-infant interaction has received little attention in the research literature. The aim of the present study was to investigate the relationship between automatically extracted motion features and interaction quality in mother-infant interactions at 4 and 13 months. The sample consisted of 19 mother-infant dyads at 4 months and 33 mother-infant dyads at 13 months. The coding system Coding Interactive Behavior (CIB) was used for rating the quality of the interactions. Kinetic energy of upper-body, arms and head motion was calculated and used as segmentation in order to extract coarse- and fine-grained motion features. Spearman correlations were conducted between the composites derived from the CIB and the coarse- and fine-grained motion features. At both 4 and 13 months, longer durations of maternal arm motion and infant upper-body motion were associated with more aversive interactions, i.e., more parent-led interactions and more infant negativity. Further, at 4 months, the amount of motion silence was related to more adaptive interactions, i.e., more sensitive and child-led interactions. Analyses of the fine-grained motion features showed that if the mother coordinates her head movements with her infant's head movements, the interaction is rated as more adaptive in terms of less infant negativity and less dyadic negative states. We found more and stronger correlations between the motion features and the interaction qualities at 4 compared to 13 months. These results highlight that motion features are related to the quality of mother-infant interactions. Factors such as infant age and interaction set-up are likely to modify the meaning and importance of different motion features. PMID- 29326627 TI - Transfer of Training from Virtual to Real Baseball Batting. AB - The use of virtual environments (VE) for training perceptual-motors skills in sports continues to be a rapidly growing area. However, there is a dearth of research that has examined whether training in sports simulation transfers to the real task. In this study, the transfer of perceptual-motor skills trained in an adaptive baseball batting VE to real baseball performance was investigated. Eighty participants were assigned equally to groups undertaking adaptive hitting training in the VE, extra sessions of batting practice in the VE, extra sessions of real batting practice, and a control condition involving no additional training to the players' regular practice. Training involved two 45 min sessions per week for 6 weeks. Performance on a batting test in the VE, in an on-field test of batting, and on a pitch recognition test was measured pre- and post training. League batting statistics in the season following training and the highest level of competition reached in the following 5 years were also analyzed. For the majority of performance measures, the adaptive VE training group showed a significantly greater improvement from pre-post training as compared to the other groups. In addition, players in this group had superior batting statistics in league play and reached higher levels of competition. Training in a VE can be used to improve real, on-field performance especially when designers take advantage of simulation to provide training methods (e.g., adaptive training) that do not simply recreate the real training situation. PMID- 29326628 TI - Recreational Diving Practice for Stress Management: An Exploratory Trial. AB - Background: Within the components of Scuba diving there are similarities with meditation and mindfulness techniques by training divers to be in a state of open monitoring associated with slow and ample breathing. Perceived stress is known to be diminished during meditation practice. This study evaluates the benefits of scuba diving on perceived stress and mindful functioning. Method: A recreational diving group (RDG; n = 37) was compared with a multisport control group (MCG; n = 30) on perceived stress, mood, well-being and mindfulness by answering auto questionnaires before and after a 1-week long UCPA course. For the diving group, stability of the effects was evaluated 1 month later using similar auto questionnaires. Results: Perceived stress did not decrease after the course for the MCG [ The divers showed a significant reduction on the perceived stress score (p < 0.05) with a sustainable effect (p = 0.01)]. An improvement in mood scale was observed in both groups. This was associated to an increase in mindfulness abilities. Conclusions: The practice of a recreational sport improves the mood of subjects reporting the thymic benefits of a physical activity performed during a vacation period. The health benefits of recreational diving appear to be greater than the practice of other sports in reducing stress and improving well-being. PMID- 29326629 TI - Parental Emotion Socialization and Child Psychological Adjustment among Chinese Urban Families: Mediation through Child Emotion Regulation and Moderation through Dyadic Collaboration. AB - The theoretical model of emotion regulation and many empirical findings have suggested that children's emotion regulation may mediate the association between parents' emotion socialization and children's psychological adjustment. However, limited research has been conducted on moderators of these relations, despite the argument that the associations between parenting practices and children's psychological adjustment are probabilistic rather than deterministic. This study examined the mediating role of children's emotion regulation in linking parents' emotion socialization and children's psychological adjustment, and whether dyadic collaboration could moderate the proposed mediation model in a sample of Chinese parents and their children in their middle childhood. Participants were 150 Chinese children (87 boys and 63 girls, Mage = 8.54, SD = 1.67) and their parents (Mage = 39.22, SD = 4.07). Parent-child dyadic collaboration was videotaped and coded from an interaction task. Parents reported on their emotion socialization, children's emotion regulation and psychopathological symptoms. Results indicated that child emotion regulation mediated the links between parental emotion socialization and child's psychopathological symptoms. Evidence of moderated mediation was also found: supportive emotion socialization and child emotion regulation were positively correlated only at high and medium levels of dyadic collaboration, with child's psychopathological symptoms as the dependent variables. Our findings suggested that higher-level parent-child collaboration might further potentiate the protective effect of parental supportive emotion socialization practices against child psychopathological symptoms. PMID- 29326630 TI - Underlying Processes of an Inverted Personalization Effect in Multimedia Learning - An Eye-Tracking Study. AB - One of the frequently examined design principles in multimedia learning is the personalization principle. Based on empirical evidence this principle states that using personalized messages in multimedia learning is more beneficial than using formal language (e.g., using 'you' instead of 'the'). Although there is evidence that these slight changes in regard to the language style affect learning, motivation and the perceived cognitive load, it remains unclear, (1) whether the positive effects of personalized language can be transferred to all kinds of content of learning materials (e.g., specific potentially aversive health issues) and (2) which are the underlying processes (e.g., attention allocation) of the personalization effect. German university students (N = 37) learned symptoms and causes of cerebral hemorrhages either with a formal or a personalized version of the learning material. Analysis revealed comparable results to the few existing previous studies, indicating an inverted personalization effect for potentially aversive learning material. This effect was specifically revealed in regard to decreased average fixation duration and the number of fixations exclusively on the images in the personalized compared to the formal version. These results can be seen as indicators for an inverted effect of personalization on the level of visual attention. PMID- 29326631 TI - Cyclists' Anger As Determinant of Near Misses Involving Different Road Users. AB - Road anger constitutes one of the determinant factors related to safety outcomes (e.g., accidents, near misses). Although cyclists are considered vulnerable road users due to their relatively high rate of fatalities in traffic, previous research has solely focused on car drivers, and no study has yet investigated the effect of anger on cyclists' safety outcomes. The present research aims to investigate, for the first time, the effects of cycling anger toward different types of road users on near misses involving such road users and near misses in general. Using a daily diary web-based questionnaire, we collected data about daily trips, bicycle use, near misses experienced, cyclist's anger and demographic information from 254 Spanish cyclists. Poisson regression was used to assess the association of cycling anger with near misses, which is a count variable. No relationship was found between general cycling anger and near misses occurrence. Anger toward specific road users had different effects on the probability of near misses with different road users. Anger toward the interaction with car drivers increased the probability of near misses involving cyclists and pedestrians. Anger toward interaction with pedestrians was associated with higher probability of near misses with pedestrians. Anger toward cyclists exerted no effect on the probability of near misses with any road user (i.e., car drivers, cyclists or pedestrians), whereas anger toward the interactions with the police had a diminishing effect on the occurrence of near misses' involving all types of road users. The present study demonstrated that the effect of road anger on safety outcomes among cyclists is different from that of motorists. Moreover, the target of anger played an important role on safety both for the cyclist and the specific road users. Possible explanations for these differences are based on the difference in status and power with motorists, as well as on the potential displaced aggression produced by the fear of retaliation by motorized vehicle users. PMID- 29326632 TI - Sending Nudes: Sex, Self-Rated Mate Value, and Trait Machiavellianism Predict Sending Unsolicited Explicit Images. AB - Modern dating platforms have given rise to new dating and sexual behaviors. In the current study, we examine predictors of sending unsolicited explicit images, a particularly underexplored online sexual behavior. The aim of the current study was to explore the utility of dark personality traits (i.e., narcissism, Machiavellianism, psychopathy, and sadism) and self-rated mate value in predicting attitudes toward and behavior of sending unsolicited explicit images. Two hundred and forty participants (72% female; Mage = 25.96, SD = 9.79) completed an online questionnaire which included a measure of self-rated mate value, a measure of dark personality traits, and questions regarding sending unsolicited explicit images (operationalized as the explicit image scale). Men, compared to women, were found to have higher explicit image scale scores, and both self-rated mate value and trait Machiavellianism were positive predictors of explicit image scale scores. Interestingly, there were no significant interactions between sex and these variables. Further, Machiavellianism mediated all relationships between other dark traits and explicit image scale scores, indicating this behavior is best explained by the personality trait associated with behavioral strategies. In sum, these results provide support for the premise that sending unsolicited explicit images may be a tactic of a short-term mating strategy; however, future research should further explore this claim. PMID- 29326633 TI - Editorial: Psychosocial Job Dimensions and Distress/Well-Being: Issues and Challenges in Occupational Health Psychology. PMID- 29326634 TI - When Sugar-Coated Words Taste Dry: The Relationship between Gender, Anxiety, and Response to Irony. AB - This article approaches the question of mocking compliments and ironic praise from an interactional gender perspective. A statement such as "You're a real genius!" could easily be interpreted as a literal compliment, as playful humor or as an offensive insult. We investigate this thin line in the use of irony among adult men and women. The research introduces an interactional approach to irony, through the lens of gender stereotype bias. The main question concerns the impact of individual differences and gender effect on the perception and production of ironic comments. Irony Processing Task (IPT), developed by Milanowicz (2016), was applied in order to study the production and perception of ironic criticism and ironic praise in adult males and females. It is a rare case of a study measuring the ability to create irony because, unlike most of known irony research, it is not a multiple choice test where participants are given the response options. The IPT was also used to assess the asymmetry of affect (humor vs. malice) and impact of gender effect in the perception of ironic comments. Results are analyzed in relation to the State-Trait Anxiety Inventory (STAI) scores. The findings reveal the interactional relationship between gender and response to irony. Male responses were consistently more ironic than female's, across all experimental conditions, and female responses varied more. Both, men and women used more irony in response to male ironic criticism but female ironic praise. Anxiety proved to be a moderate predictor of irony comprehension and willingness to use irony. Data, collected in control and two gender stereotype activation conditions, also corroborates the assumption that the detection of compliments and the detection of criticism can be moderated by the attitude activation effect. The results are interpreted within the framework of linguistic intergroup bias (LIB) and natural selection strategies. PMID- 29326637 TI - When More Is Better - Consumption Priming Decreases Responders' Rejections in the Ultimatum Game. AB - During the past decades, economic theories of rational choice have been exposed to outcomes that were severe challenges to their claim of universal validity. For example, traditional theories cannot account for refusals to cooperate if cooperation would result in higher payoffs. A prominent illustration are responders' rejections of positive but unequal payoffs in the Ultimatum Game. To accommodate this anomaly in a rational framework one needs to assume both a preference for higher payoffs and a preference for equal payoffs. The current set of studies shows that the relative weight of these preference components depends on external conditions and that consumption priming may decrease responders' rejections of unequal payoffs. Specifically, we demonstrate that increasing the accessibility of consumption-related information accentuates the preference for higher payoffs. Furthermore, consumption priming increased responders' reaction times for unequal payoffs which suggests an increased conflict between both preference components. While these results may also be integrated into existing social preference models, we try to identify some basic psychological processes underlying economic decision making. Going beyond the Ultimatum Game, we propose that a distinction between comparative and deductive evaluations may provide a more general framework to account for various anomalies in behavioral economics. PMID- 29326635 TI - Beyond Disease: Happiness, Goals, and Meanings among Persons with Multiple Sclerosis and Their Caregivers. AB - The experience of persons with multiple sclerosis (MS) and their caregivers is usually investigated in terms of emotional distress and health-related quality of life, while well-being indicators remain largely underexplored. In addition, findings are often interpreted from the clinical perspective, neglecting socio cultural aspects that may crucially contribute to individuals' functioning. At the methodological level, most studies rely on scaled instruments, not allowing participants to freely express their needs and resources. Based on the bio-psycho social perspective endorsed by the International Classification of Functioning, well-being indicators were investigated among 62 persons with MS (PwMS), their 62 caregivers and two control groups, matched by age and gender. Participants completed the Positive Affect Negative Affect Schedule (PANAS), the Satisfaction with Life Scale (SWLS), and the Eudaimonic and Hedonic Happiness Investigation instrument (EHHI). EHHI provides information on participants' happiness, goals and meanings through scaled and open-ended questions, contextualized within major life domains. No relevant differences emerged among PwMS and caregivers, compared with the respective control groups, as concerns life domains associated with happiness, goals and meaning. Participants across groups prominently mentioned family, highlighting its intrinsic value and its relevance as a sharing context; health did not represent a major theme for PwMS; community, society and religion/spirituality issues were substantially neglected by all participants. PwMS and caregivers reported lower levels of positive affect than their control groups, while no substantial differences emerged for negative affect, happiness and meaningfulness levels in life and across most domains. Results suggest that the experience of MS is associated with well-being in relevant life domains, such as family and close relationships. Although PwMS and caregivers identified a lower number of goals and meaning-related opportunities compared to control groups, they showed a positive adjustment to disease through the development of personal and family resources. These assets are often undervalued by health professionals and social institutions, while they could be fruitfully exploited through the active involvement of PwMS and their families as expert and exemplary informants in initiatives aimed at promoting the well-being of individuals and communities. PMID- 29326638 TI - Spatial Release from Masking with a Moving Target. AB - In the visual domain, a stationary object that is difficult to detect usually becomes far more salient if it moves while the objects around it do not. This "pop out" effect is important for parsing the visual world into figure/ground relationships that allow creatures to detect food, threats, etc. We tested for an auditory correlate to this visual effect by asking listeners to identify a single word, spoken by a female, embedded with two or four masking words spoken by males. Percentage correct scores were analyzed and compared between conditions where target and maskers were presented from the same position vs. when the target was presented from one position while maskers were presented from different positions. In some trials, the target word was moved across the speaker array using amplitude panning, while in other trials that target was played from a single, static position. Results showed a spatial release from masking for all conditions where the target and maskers were not located at the same position, but there was no statistically significant difference between identification performance when the target was moving vs. when it was stationary. These results suggest that, at least for short stimulus durations (0.75 s for the stimuli in this experiment), there is unlikely to be a "pop out" effect for moving target stimuli in the auditory domain as there is in the visual domain. PMID- 29326636 TI - Uncovering the Mechanisms Responsible for Why Language Learning May Promote Healthy Cognitive Aging. AB - One of the great challenges facing humankind in the 21st century is preserving healthy brain function in our aging population. Individuals over 60 are the fastest growing age group in the world, and by 2050, it is estimated that the number of people over the age of 60 will triple. The typical aging process involves cognitive decline related to brain atrophy, especially in frontal brain areas and regions that subserve declarative memory, loss of synaptic connections, and the emergence of neuropathological symptoms associated with dementia. The disease-state of this age-related cognitive decline is Alzheimer's disease and other dementias, which may cause older adults to lose their independence and rely on others to live safely, burdening family members and health care systems in the process. However, there are two lines of research that offer hope to those seeking to promote healthy cognitive aging. First, it has been observed that lifestyle variables such as cognitive leisure activities can moderate the risk of Alzheimer's disease, which has led to the development of plasticity-based interventions for older adults designed to protect against the adverse effects of cognitive decline. Second, there is evidence that lifelong bilingualism acts as a safeguard in preserving healthy brain function, possibly delaying the incidence of dementia by several years. In previous work, we have suggested that foreign language learning programs aimed at older populations are an optimal solution for building cognitive reserve because language learning engages an extensive brain network that is known to overlap with the regions negatively affected by the aging process. Here, we will outline potential future lines of research that may uncover the mechanism responsible for the emergence of language learning related brain advantages, such as language typology, bi- vs. multi-lingualism, age of acquisition, and the elements that are likely to result in the largest gains. PMID- 29326639 TI - The Effects of Animacy and Syntax on Priming: A Developmental Study. AB - Sentence production relies on the activation of semantic information (e.g., noun animacy) and syntactic frames that specify an order for grammatical functions (e.g., subject before object). However, it is unclear whether these semantic and syntactic processes interact and if this might change over development. We thus examined the extent to which animacy-semantic role mappings in dative prime sentences and target scenes influences choice of syntactic structure (structural priming, analysis 1) and ordering of nouns as a function of animacy (animacy noun priming, analysis 2) in children and adults. One hundred forty-three participants (47 three year olds, 48 five year olds and 48 adults) alternated with the experimenter in describing animations. Animacy mappings for themes and goals were either prototypical or non-prototypical and either matched or mismatched across the experimenter's prime scenes and participants' target elicitation scenes. Prime sentences were either double-object datives (DOD e.g., the girl brought the monkey a ball) or prepositional datives (PD e.g., the girl brought the ball to the monkey), and occurred with either animate-inanimate or inanimate-animate, post-verbal noun order. Participants' target sentences were coded for syntactic form, and animacy noun order. All age groups showed a structural priming effect. A significant interaction between prime structure, prime animacy-semantic role mappings and prime-target match indicated that animacy could moderate structural priming in 3 year olds. However, animacy had no effect on structural priming in any other instance. Nevertheless, production of DOD structures was influenced by whether animacy-semantic role mappings in primes and target scenes matched or mismatched. We provide new evidence of animacy noun order priming effects in 3 and 5 year olds where there was prime-target match in animacy-semantic role mappings. Neither prime animacy noun ordering nor animacy-semantic role mappings influenced adults' target sentences. Our results demonstrate that animacy cues can affect speakers' word order independently of syntactic structure and also through interactions with syntax, although these processes are subject to developmental changes. We therefore, suggest that theories of structural priming, sentence production, linguistic representation and language acquisition all need to explicitly account for developmental changes in the role of semantic and syntactic information in sentence processing. PMID- 29326640 TI - Analysis of Amyloid-beta Pathology Spread in Mouse Models Suggests Spread Is Driven by Spatial Proximity, Not Connectivity. AB - While the spread of some neurodegenerative disease-associated proteinopathies, such as tau and alpha-synuclein, is well studied and clearly implicates transsynaptic pathology transmission, research into the progressive spread of amyloid-beta pathology has been less clear. In fact, prior analyses of transregional amyloid-beta pathology spread have implicated both transsynaptic and other intracellular- as well as extracellular-based transmission mechanisms. We therefore conducted the current meta-analytic analysis to help assess whether spatiotemporal amyloid-beta pathology development patterns in mouse models, where regional proteinopathy is more directly characterizable than in patients, better fit with transsynaptic- or extracellular-based theories of pathology spread. We find that, consistently across the datasets used in this study, spatiotemporal amyloid-beta pathology patterns are more consistent with extracellular-based explanations of pathology spread. Furthermore, we find that regional levels of amyloid precursor protein in a mouse model are also better correlated with expected pathology patterns based on extracellular, rather than intracellular or transsynaptic spread. PMID- 29326642 TI - Spinal Cavernomas: Outcome of Surgically Treated 10 Patients. AB - Aim: We report the preoperative and postoperative findings and also neurological follow-up results from 10 spinal cavernoma patients treated in our clinic. Several representative cases are presented in terms of clinical features, imaging results, and surgical outcomes. Material and methods: The data were retrospectively collected from patients' files in the hospital records and sorted with regards to clinical presentation, radiologic features, and operative findings. Patients received spinal MRI scans for the diagnosis of spinal cavernomas (SC) and postsurgical evaluation. Clinical presentation was evaluated via Ogilvy classification and symptoms were checked preoperatively and postoperatively at third month and first year using McCormick scale. Primary treatment was microsurgical operation aiming a gross total lesion resection. Results: 10 spinal cavernoma patients between the ages 30 and 63 were treated. Six (60%) of the patients were diagnosed with cervical and four (40%) others were diagnosed with thoracic SC. Among the patient group, mean preoperative Ogilvy classification score was 2.3 +/- 0.7.8 and McCormick score was 1.9 +/- 0.7. There was no residual mass or relapse after surgery. One patient developed surgery related left hemiparesis, which was normalized at 1 year follow-up. Conclusion: Patients must be diagnosed with MRI since it is nowadays a gold standard. Preoperative and postoperative scores are important in evaluating the patients' condition and improvement. The results from our patient series also reinforce the notion that immediate surgery should be the preferred treatment method for cavernomas. Intraoperative neurophysiologic monitarization should assist the surgery in order to prevent complications. In conclusion, microsurgery is a gold standard method that we recommend for cases of cavernomas, which will not recur if gross total resection is achieved. PMID- 29326641 TI - The TGF-beta System As a Potential Pathogenic Player in Disease Modulation of Amyotrophic Lateral Sclerosis. AB - Amyotrophic lateral sclerosis (ALS) represents a fatal orphan disease with high unmet medical need, and a life time risk of approx. 1/400 persons per population. Based on increasing knowledge on pathophysiology including genetic and molecular changes, epigenetics, and immune dysfunction, inflammatory as well as fibrotic processes may contribute to the heterogeneity and dynamics of ALS. Animal and human studies indicate dysregulations of the TGF-beta system as a common feature of neurodegenerative disorders in general and ALS in particular. The TGF-beta system is involved in different essential developmental and physiological processes and regulates immunity and fibrosis, both affecting neurogenesis and neurodegeneration. Therefore, it has emerged as a potential therapeutic target for ALS: a persistent altered TGF-beta system might promote disease progression by inducing an imbalance of neurogenesis and neurodegeneration. The current study assessed the activation state of the TGF-beta system within the periphery/in life disease stage (serum samples) and a late stage of disease (central nervous system tissue samples), and a potential influence upon neuronal stem cell (NSC) activity, immune activation, and fibrosis. An upregulated TGF-beta system was suggested with significantly increased TGF-beta1 protein serum levels, enhanced TGF-beta2 mRNA and protein levels, and a strong trend toward an increased TGF beta1 protein expression within the spinal cord (SC). Stem cell activity appeared diminished, reflected by reduced mRNA expression of NSC markers Musashi-1 and Nestin within SC-paralleled by enhanced protein contents of Musashi-1. Doublecortin mRNA and protein expression was reduced, suggesting an arrested neurogenesis at late stage ALS. Chemokine/cytokine analyses suggest a shift from a neuroprotective toward a more neurotoxic immune response: anti-inflammatory chemokines/cytokines were unchanged or reduced, expression of proinflammatory chemokines/cytokines were enhanced in ALS sera and SC postmortem tissue. Finally, we observed upregulated mRNA and protein expression for fibronectin in motor cortex of ALS patients which might suggest increased fibrotic changes. These data suggest that there is an upregulated TGF-beta system in specific tissues in ALS that might lead to a "neurotoxic" immune response, promoting disease progression and neurodegeneration. The TGF-beta system therefore may represent a promising target in treatment of ALS patients. PMID- 29326643 TI - The Temporal Retinal Nerve Fiber Layer Thickness Is the Most Important Optical Coherence Tomography Estimate in Multiple Sclerosis. AB - Background: Reduced peripapillary retinal nerve fiber layer (pRNFL) and combined ganglion cell and inner plexiform layer (GCIP) thicknesses as measured by optical coherence tomography (OCT) have been observed in multiple sclerosis (MS) patients. The purpose was to determine the most associative OCT measure to level of cognitive and physical disability in MS. Methods: Data were collected from 546 MS patients and 175 healthy controls (HCs). We compared the average pRNFL, temporal pRNFL (T-pRNFL), overall inner ganglion cell/inner plexiform layer (GCIP), and the overall ganglion cell complex (GCC) including macular RNFL and GCIP thicknesses measurements in differentiating MS subtypes from HCs. The association between OCT measures, Expanded Disability Status Scale (EDSS), and Symbol Digit Modalities Test (SDMT) were assessed using generalized estimating equations models. Results: Both peripapillary and macular OCT measurements could differentiate all MS subtypes from HCs. The SDMT score was significantly associated with reduced thickness of all OCT measures, mostly in average pRNFL (0.14 um, P = 0.001) and T-pRNFL (0.17 um, P < 0.001). The EDSS score was significantly associated with reduced inner retinal layer thickness. The largest reduction was seen in T-pRNFL (-1.52 MUm, P < 0.001) and inner GCC (-1.78 MUm, P < 0.001). Conclusion: The T-pRNFL is highly sensitive and associated with level of both cognitive and physical disability. PMID- 29326645 TI - Segregation of Spontaneous and Training Induced Recovery from Visual Field Defects in Subacute Stroke Patients. AB - Whether rehabilitation after stroke profits from an early start is difficult to establish as the contributions of spontaneous recovery and treatment are difficult to tease apart. Here, we use a novel training design to dissociate these components for visual rehabilitation of subacute stroke patients with visual field defects such as hemianopia. Visual discrimination training was started within 6 weeks after stroke in 17 patients. Spontaneous and training induced recoveries were distinguished by training one-half of the defect for 8 weeks, while monitoring spontaneous recovery in the other (control) half of the defect. Next, trained and control regions were swapped, and training continued for another 8 weeks. The same paradigm was also applied to seven chronic patients for whom spontaneous recovery can be excluded and changes in the control half of the defect point to a spillover effect of training. In both groups, field stability was assessed during a no-intervention period. Defect reduction was significantly greater in the trained part of the defect than in the simultaneously untrained part of the defect irrespective of training onset (p = 0.001). In subacute patients, training contributed about twice as much to their defect reduction as the spontaneous recovery. Goal Attainment Scores were significantly and positively correlated with the total defect reduction (p = 0.01), percentage increase reading speed was significantly and positively correlated with the defect reduction induced by training (epoch 1: p = 0.0044; epoch 2: p = 0.023). Visual training adds significantly to the spontaneous recovery of visual field defects, both during training in the early and the chronic stroke phase. However, field recovery as a result of training in this subacute phase was as large as in the chronic phase. This suggests that patients benefited primarily of early onset training by gaining access to a larger visual field sooner. PMID- 29326644 TI - Remote Diffusion-Weighted Imaging Lesions in Intracerebral Hemorrhage: Characteristics, Mechanisms, Outcomes, and Therapeutic Implications. AB - Spontaneous intracerebral hemorrhage (ICH) is one of the most fatal form of stroke, with high mortality and disability rate. Small diffusion-weighed imaging lesions are not rare to see in regions remote from the hematoma after ICH and have been generally considered as related with poor outcome. In this review, we described the characteristics of remote ischemic lesions, discussed the possible mechanisms and clinical outcomes of these lesions, and evaluated the potential therapeutic implications. PMID- 29326646 TI - Impaired Emotional Mirroring in Parkinson's Disease-A Study on Brain Activation during Processing of Facial Expressions. AB - Background: Affective dysfunctions are common in patients with Parkinson's disease, but the underlying neurobiological deviations have rarely been examined. Parkinson's disease is characterized by a loss of dopamine neurons in the substantia nigra resulting in impairment of motor and non-motor basal ganglia cortical loops. Concerning emotional deficits, some studies provide evidence for altered brain processing in limbic- and lateral-orbitofrontal gating loops. In a second line of evidence, human premotor and inferior parietal homologs of mirror neuron areas were involved in processing and understanding of emotional facial expressions. We examined deviations in brain activation during processing of facial expressions in patients and related these to emotion recognition accuracy. Methods: 13 patients and 13 healthy controls underwent an emotion recognition task and a functional magnetic resonance imaging (fMRI) measurement. In the Emotion Hexagon test, participants were presented with blends of two emotions and had to indicate which emotion best described the presented picture. Blended pictures with three levels of difficulty were included. During fMRI scanning, participants observed video clips depicting emotional, non-emotional, and neutral facial expressions or were asked to produce these facial expressions themselves. Results: Patients performed slightly worse in the emotion recognition task, but only when judging the most ambiguous facial expressions. Both groups activated inferior frontal and anterior inferior parietal homologs of mirror neuron areas during observation and execution of the emotional facial expressions. During observation, responses in the pars opercularis of the right inferior frontal gyrus, in the bilateral inferior parietal lobule and in the bilateral supplementary motor cortex were decreased in patients. Furthermore, in patients, activation of the right anterior inferior parietal lobule was positively related to accuracy in the emotion recognition task. Conclusion: Our data provide evidence for a contribution of human homologs of monkey mirror areas to the emotion recognition deficit in Parkinson's disease. PMID- 29326647 TI - Non-24-Hour Sleep-Wake Rhythm Disorder in the Totally Blind: Diagnosis and Management. AB - Several aspects of human physiology and behavior are dominated by 24-h circadian rhythms with key impacts on health and well-being. These include mainly the sleep wake cycle, vigilance and performance patterns, and some hormone secretions. The rhythms are generated spontaneously by an internal "pacemaker," the suprachiasmatic nuclei within the anterior hypothalamus. This master clock has, for most humans, an intrinsic rhythm slightly longer than 24 h. Daily retinal light exposure is necessary for the synchronization of the circadian rhythms with the external 24-h solar environment. This daily synchronization process generally poses no problems for sighted individuals except in the context of jetlag or working night shifts being conditions of circadian desynchrony. However, many blind subjects with no light perception had periodical circadian desynchrony, in the absence of light information to the master clock leading to poor circadian rhythm synchronization. Affected patients experience cyclical or periodic episodes of poor sleep and daytime dysfunction, severely interfering with social, academic, and professional life. The diagnosis of Non-24 Sleep-Wake Rhythm Disorder, also named free-running disorder, non-entrained disorder, or hypernycthemeral syndrome, remains challenging from a clinical point of view due to the cyclical symptoms and should be confirmed by measurements of circadian biomarkers such as urinary melatonin to demonstrate a circadian period outside the normal range. Management includes behavioral modification and melatonin. Tasimelteon, a novel melatonin receptor 1 and 2 agonist, has demonstrated its effectiveness and safety with an evening dose of 20 mg and is currently the only treatment approved by the FDA and the European Medicines Agency. PMID- 29326648 TI - Functional MRI Motor Imagery Tasks to Detect Command Following in Traumatic Disorders of Consciousness. AB - Severe traumatic brain injury impairs arousal and awareness, the two components of consciousness. Accurate diagnosis of a patient's level of consciousness is critical for determining treatment goals, access to rehabilitative services, and prognosis. The bedside behavioral examination, the current clinical standard for diagnosis of disorders of consciousness, is prone to misdiagnosis, a finding that has led to the development of advanced neuroimaging techniques aimed at detection of conscious awareness. Although a variety of paradigms have been used in functional magnetic resonance imaging (fMRI) to reveal covert consciousness, the relative accuracy of these paradigms in the patient population is unknown. Here, we compare the rate of covert consciousness detection by hand squeezing and tennis playing motor imagery paradigms in 10 patients with traumatic disorders of consciousness [six male, six acute, mean +/- SD age = 27.9 +/- 9.1 years, one coma, four unresponsive wakefulness syndrome, two minimally conscious without language function, and three minimally conscious with language function, per bedside examination with the Coma Recovery Scale-Revised (CRS-R)]. We also tested the same paradigms in 10 healthy subjects (nine male, mean +/- SD age = 28.5 +/- 9.4 years). In healthy subjects, the hand squeezing paradigm detected covert command following in 7/10 and the tennis playing paradigm in 9/10 subjects. In patients who followed commands on the CRS-R, the hand squeezing paradigm detected covert command following in 2/3 and the tennis playing paradigm in 0/3 subjects. In patients who did not follow commands on the CRS-R, the hand squeezing paradigm detected command following in 1/7 and the tennis playing paradigm in 2/7 subjects. The sensitivity, specificity, and accuracy (ACC) of detecting covert command following in patients who demonstrated this behavior on the CRS-R was 66.7, 85.7, and 80% for the hand squeezing paradigm and 0, 71.4, and 50% for the tennis playing paradigm, respectively. Overall, the tennis paradigm performed better than the hand squeezing paradigm in healthy subjects, but in patients, the hand squeezing paradigm detected command following with greater ACC. These findings indicate that current fMRI motor imagery paradigms frequently fail to detect command following and highlight the need for paradigm optimization to improve the accuracy of covert consciousness detection. PMID- 29326649 TI - Neck Vibration Proprioceptive Postural Response Intact in Progressive Supranuclear Palsy unlike Idiopathic Parkinson's Disease. AB - Progressive supranuclear palsy (PSP) and late-stage idiopathic Parkinson's disease (IPD) are neurodegenerative movement disorders resulting in different postural instability and falling symptoms. IPD falls occur usually forward in late stage, whereas PSP falls happen in early stages, mostly backward, unprovoked, and with high morbidity. Postural responses to sensory anteroposterior tilt illusion by bilateral dorsal neck vibration were probed in both groups versus healthy controls on a static recording posture platform. Three distinct anteroposterior body mass excursion peaks (P1-P3) were observed. 18 IPD subjects exhibited well-known excessive response amplitudes, whereas 21 PSP subjects' responses remained unaltered to 22 control subjects. Neither IPD nor PSP showed response latency deficits, despite brainstem degeneration especially in PSP. The observed response patterns suggest that PSP brainstem pathology might spare the involved proprioceptive pathways and implies viability of neck vibration for possible biofeedback and augmentation therapy in PSP postural instability. PMID- 29326650 TI - The Patterns of Recurrences in Idiopathic Benign Paroxysmal Positional Vertigo and Self-treatment Evaluation. AB - Background and Objectives: Benign paroxysmal positional vertigo (BPPV) recurs frequently. This study aims to determine that each patient with BPPV has a predilection for a specific canal and the type of recurred BPPV can be predicted from that observed during the previous attack. Methods: The involved side (right, left, and bilateral) and affected canal (posterior, geotropic horizontal, apogeotropic horizontal, anterior, and mixed) were analyzed in 224 pairs of consecutive attacks of BPPV confirmed in 167 patients at the Dizziness Clinic of Seoul National Bundang Hospital from 2003 to 2017. We defined the recurrence when patients had the redevelopment of BPPV at least 1 week after resolution of the previous one. Results: During the initial attack, the involved canals were posterior in 134 (59.8%), geotropic horizontal in 53 (23.7%), apogeotropic horizontal in 27 (12.1%), anterior in 5 (2.2%), and mixed in 5 (2.2%). The right ear was more commonly affected than the left ear [132 (58.9%) vs. 90 (40.2%)]. Two patients (0.9%) showed bilateral involvements. During the recurrences, the proportions of involved canals and affected side were similar irrespective of those during the former event. Only 24% of the patients showed the recurrence in the same canal on the same side. Conclusion: The patterns of recurrences are usually discordant in patients with BPPV. Instruction for self-administration of a specific canalith repositioning procedure based on the previous type of BPPV may have a limited efficacy in this frequently recurrent disorder. PMID- 29326652 TI - Clinical Epidemiology of Head Injury from Road-Traffic Trauma in a Developing Country in the Current Era. AB - Objectives: Africa and other Asian low middle-income countries account for the greatest burden of the global road-traffic injury (RTI)-related head injury (HI). This study set out to describe the incidence, causation, and severity of RTI related HI and associated injuries in a Nigerian academic neurosurgical practice. Methods: This is a retrospective cross-sectional analysis of RTI-related HI from a prospective HI registry in an academic neurosurgery practice in Nigeria. Results: All-terrain RTI accounted for 80.6% (833/1,034) of HI over a 7-year study period. All age groups were involved, mean 33.06 years (SD 18.30), mode 21 30, 231/833 (27.7%). The male:female ratio was 631:202, ~3:1. The road trauma occurred exclusively from motorcycle-and motor-vehicle crash (MCC/MVC), MCC caused 56.8% (473/833) of these; the victims were vulnerable road users (VRU) in 74%, and >90% belong in the low socioeconomic class. Using the Glasgow Coma Scale grading, the HI was moderate/severe in 52%; loss of consciousness occurred in 93%, the Abbreviated Injury Severity-head > 3 in 74%, and computed tomography (CT) Rotterdam score > 3 in 52%. Significant extracranial injuries occurred in many organ systems, 421/833 (50.5%) having Injury Severity Score (ISS) > 25. Surgical lesions included extensive brain contusions in 157 (18.8%); acute extradural hematoma in 34 (4.1%); acute subdural hematoma in 32 (3.8%); and traumatic intracerebral hemorrhage in 27 (3.2%), but only 97 (11.6%) received operative care for various logistic reasons. The in-hospital outcome was good in 71.3% and poor in 28.7%; the statistically significant (p < 0.001) determinants of this outcome profile were the severity of the HI, the CT Rotterdam score, and the ISS. Conclusion: In this study from Nigeria, RTI-related HI emanates from significant trauma to vulnerable road users and are caused exclusively by motorcycles and motor vehicles. PMID- 29326651 TI - Comparison of 3- and 20-Gradient Direction Diffusion-Weighted Imaging in a Clinical Subacute Cohort of Patients with Transient Ischemic Attack: Application of Standard Vendor Protocols for Lesion Detection and Final Infarct Size Projection. AB - Objective: Diffusion tensor imaging may aid brain ischemia assessment but is more time consuming than conventional diffusion-weighted imaging (DWI). We compared 3 gradient direction DWI (3DWI) and 20-gradient direction DWI (20DWI) standard vendor protocols in a hospital-based prospective cohort of patients with transient ischemic attack (TIA) for lesion detection, lesion brightness, predictability of persisting infarction, and final infarct size. Methods: We performed 3T-magnetic resonance imaging including diffusion and T2-fluid attenuated inversion recovery (FLAIR) within 72 h and 8 weeks after ictus. Qualitative lesion brightness was assessed by visual inspection. We measured lesion area and brightness with manual regions of interest and compared with homologous normal tissue. Results: 117 patients with clinical TIA showed 78 DWI lesions. 2 lesions showed only on 3DWI. No lesions were uniquely 20DWI positive. 3DWI was visually brightest for 34 lesions. 12 lesions were brightest on 20DWI. The median 3DWI lesion area was larger for lesions equally bright, or brightest on 20DWI [median (IQR) 39 (18-95) versus 18 (10-34) mm2, P = 0.007]. 3DWI showed highest measured relative lesion signal intensity [median (IQR) 0.77 (0.48-1.17) versus 0.58 (0.34-0.81), P = 0.0006]. 3DWI relative lesion signal intensity was not correlated to absolute signal intensity, but 20DWI performed less well for low-contrast lesions. 3DWI lesion size was an independent predictor of persistent infarction. 3-gradient direction apparent diffusion coefficient areas were closest to 8-week FLAIR infarct size. Conclusion: 3DWI detected more lesions and had higher relative lesion SI than 20DWI. 20DWI appeared blurred and did not add information. Clinical Trial Registration: http://www.clinicaltrials.gov. Unique Identifier NCT01531946. PMID- 29326653 TI - Electroencephalogram-Based Brain-Computer Interface and Lower-Limb Prosthesis Control: A Case Study. AB - Objective: The purpose of this study was to establish the feasibility of manipulating a prosthetic knee directly by using a brain-computer interface (BCI) system in a transfemoral amputee. Although the other forms of control could be more reliable and quick (e.g., electromyography control), the electroencephalography (EEG)-based BCI may provide amputees an alternative way to control a prosthesis directly from brain. Methods: A transfemoral amputee subject was trained to activate a knee-unlocking switch through motor imagery of the movement of his lower extremity. Surface scalp electrodes transmitted brain wave data to a software program that was keyed to activate the switch when the event related desynchronization in EEG reached a certain threshold. After achieving more than 90% reliability for switch activation by EEG rhythm-feedback training, the subject then progressed to activating the knee-unlocking switch on a prosthesis that turned on a motor and unlocked a prosthetic knee. The project took place in the prosthetic department of a Veterans Administration medical center. The subject walked back and forth in the parallel bars and unlocked the knee for swing phase and for sitting down. The success of knee unlocking through this system was measured. Additionally, the subject filled out a questionnaire on his experiences. Results: The success of unlocking the prosthetic knee mechanism ranged from 50 to 100% in eight test segments. Conclusion: The performance of the subject supports the feasibility for BCI control of a lower extremity prosthesis using surface scalp EEG electrodes. Investigating direct brain control in different types of patients is important to promote real-world BCI applications. PMID- 29326655 TI - Alterations in Mitochondrial Oxidative Stress and Mitophagy in Subjects with Prediabetes and Type 2 Diabetes Mellitus. AB - Background and aim: Hyperglycemia-mediated oxidative stress impedes cell reparative process like autophagy, which has been implicated in impairment of beta-cell function in type 2 diabetes mellitus (T2DM). However, the role of mitophagy (selective mitochondrial autophagy) in progression of hyperglycemia remains elusive. This study aimed to assess the impact of increasing severity of hyperglycemia on mitochondrial stress and mitophagy. Design and methods: A case control study included healthy controls, subjects with prediabetes, newly diagnosed T2DM (NDT2DM) and advanced duration of T2DM (ADT2DM) (n = 20 each). Mitochondrial stress indices, transcriptional and translational expression of mitophagy markers (PINK1, PARKIN, MFN2, NIX, LC3-II, and LAMP-2) and transmission electron microscopic (TEM) studies were performed in peripheral blood mononuclear cells. Results: With mild hyperglycemia in subjects with prediabetes, to moderate to severe hyperglycemia in NDT2DM and ADT2DM, a progressive rise in mitochondrial oxidative stress was observed. Prediabetic subjects exhibited significantly increased expression of mitophagy-related markers and showed a positive association with HOMA-beta, whereas, patients with NDT2DM and ADT2DM demonstrated decreased expression, with a greater decline in ADT2DM subjects. TEM studies revealed significantly reduced number of distorted mitochondria in prediabetics, as compared to the T2DM patients. In addition, receiver operating characteristic analysis showed HbA1C > 7% (53 mmol/mol) was associated with attenuated mitophagy. Conclusion: Increasing hyperglycemia is associated with progressive rise in oxidative stress and altered mitochondrial morphology. Sustenance of mitophagy at HbA1C < 7% (53 mmol/mol) strengthens the rationale of achieving HbA1C below this cutoff for good glycemic control. An "adaptive" increase in mitophagy may delay progression to T2DM by preserving the beta-cell function in subjects with prediabetes. PMID- 29326654 TI - Status Epilepticus Triggers Time-Dependent Alterations in Microglia Abundance and Morphological Phenotypes in the Hippocampus. AB - Status epilepticus (SE) is defined by the occurrence of prolonged "non-stop" seizures that last for at least 5 min. SE provokes inflammatory responses including the activation of microglial cells, the brain's resident immune cells, which are thought to contribute to the neuropathology and pathophysiology of epilepsy. Microglia are professional phagocytes that resemble peripheral macrophages. Upon sensing immune disturbances, including SE, microglia become reactive, produce inflammatory cytokines, and alter their actin cytoskeleton to transform from ramified to amoeboid shapes. It is widely known that SE triggers time-dependent microglial expression of pro-inflammatory cytokines that include TNFalpha and IL-1beta. However, less is known in regards to the spatiotemporal progression of the morphological changes, which may help define the extent of microglia reactivity after SE and potential function (surveillance, inflammatory, phagocytic). Therefore, in this study, we used the microglia/macrophage IBA1 marker to identify and count these cells in hippocampi from control rats and at 4 h, 3 days, and 2 weeks after a single episode of pilocarpine-induced SE. We identified, categorized, and counted the IBA1-positive cells with the different morphologies observed after SE in the hippocampal areas CA1, CA3, and dentate gyrus. These included ramified, hypertrophic, bushy, amoeboid, and rod. We found that the ramified phenotype was the most abundant in control hippocampi. In contrast, SE provoked time-dependent changes in the microglial morphology that was characterized by significant increases in the abundance of bushy-shaped cells at 4 h and amoeboid-shaped cells at 3 days and 2 weeks. Interestingly, a significant increase in the number of rod-shaped cells was only evident in the CA1 region at 2 weeks after SE. Taken together, these data suggest that SE triggers time-dependent alterations in the morphology of microglial cells. This detailed description of the spatiotemporal profile of SE-induced microglial morphological changes may help provide insight into their contribution to epileptogenesis. PMID- 29326656 TI - Variation in the Sweet Taste Receptor Gene and Dietary Intake in a Swedish Middle Aged Population. AB - Background: The preference for sweet taste is partially genetically determined. The major allele of the single nucleotide polymorphism rs12033832 in the sweet taste receptor (TAS1R2) has previously been associated with lower sugar sensitivity and higher sugar intake among overweight individuals. The aim of the present study was to examine the association between dietary intake and the TAS1R2 genotype in lean and overweight individuals in the population-based Malmo Diet and Cancer (MDC) cohort using dietary intake data with a high validity. Methods: In total, 3,602 participants (46-68 years old) from the MDC cohort who underwent baseline examinations between 1991 and 1994, who were non-smokers without diabetes, and for whom information regarding TAS1R2 rs7534618 (a proxy for rs12033832) was available were included in this study. After excluding individuals with potentially misreported and unstable food habits, 2,204 individuals were retained. A modified dietary history method, including a 7-day food diary of prepared meals, which was specifically designed for the MDC study was used. Results: Only modest associations were observed between dietary intake and the TAS1R2 genotype. We observed slightly stronger associations after excluding individuals with potentially misreported and unstable food habits. Among the participants with a BMI >=25, the major (T) allele carriers consumed more carbohydrates [TT = 45.2 percentage of energy intake (E%); TG = 45.2E%; GG = 43.7E%; p = 0.01] and less fat (p = 0.03), but these participants did not consume more sucrose than the G-allele carriers. No association was observed between the genotype and dietary intake among the participants with a BMI <25. Conclusion: Although the higher carbohydrate intake among the major allele carriers was consistent with that reported in a previous study, the magnitudes of the associations were substantially smaller. Because we observed no association with sucrose, this allele is unlikely to be useful as a marker of sugar intake in the MDC population. PMID- 29326657 TI - Early Microbes Modify Immune System Development and Metabolic Homeostasis-The "Restaurant" Hypothesis Revisited. AB - The developing infant gut microbiome affects metabolism, maturation of the gastrointestinal tract, immune system function, and brain development. Initial seeding of the neonatal microbiota occurs through maternal and environmental contact. Maternal diet, antibiotic use, and cesarean section alter the offspring microbiota composition, at least temporarily. Nutrients are thought to regulate initial perinatal microbial colonization, a paradigm known as the "Restaurant" hypothesis. This hypothesis proposes that early nutritional stresses alter both the initial colonizing bacteria and the development of signaling pathways controlled by microbial mediators. These stresses fine-tune the immune system and metabolic homeostasis in early life, potentially setting the stage for long-term metabolic and immune health. Dysbiosis, an imbalance or a maladaptation in the microbiota, can be caused by several factors including dietary alterations and antibiotics. Dysbiosis can alter biological processes in the gut and in tissues and organs throughout the body. Misregulated development and activity of both the innate and adaptive immune systems, driven by early dysbiosis, could have long lasting pathologic consequences such as increased autoimmunity, increased adiposity, and non-alcoholic fatty liver disease (NAFLD). This review will focus on factors during pregnancy and the neonatal period that impact a neonate's gut microbiome, as well as the mechanisms and possible links from early infancy that can drive increased risk for diseases including obesity and NAFLD. The complex pathways that connect diet, the microbiota, immune system development, and metabolism, particularly in early life, present exciting new frontiers for biomedical research. PMID- 29326659 TI - Intrauterine Reprogramming of the Polycystic Ovary Syndrome: Evidence from a Pilot Study of Cord Blood Global Methylation Analysis. AB - Polycystic ovary syndrome (PCOS) affects 5-15% of women. PCOS is a heterogeneous disorder displaying endocrine, metabolic, and reproductive dysfunction and cardiovascular risk manifestations. Evidence of heritability exists, but only a portion of the genetic transmission has been identified by genome-wide association studies and linkage studies, suggesting epigenetic phenomena may play a role. Evidence implicates intrauterine influences in the genesis of PCOS. This was a pilot study that aimed at identifying an epigenetic PCOS reprogramming signature by profiling the methylation of the DNA extracted from umbilical cord blood (UCB) from 12 subjects undergoing in vitro fertilization. Six subjects were anovulatory PCOS women diagnosed by Rotterdam criteria and six ovulatory non-PCOS women matched for age and body mass index. UCB was collected at delivery of the placenta; the DNA was extracted and submitted to methylation analysis. A differential methylation picture of prevalent hypomethylation affecting 918 genes was detected. Of these, 595 genes (64.8%) carried single or multiple hypomethylated CpG dinucleotides and 323 genes (35.2%) single or multiple hypermethylated CpG dinucleotides. The Ingenuity Pathway Analysis (IPA) online platform enlisted 908 of the 918 input genes and clustered 794 of them into 21 gene networks. Key features of the primary networks scored by IPA included carbohydrate and lipid metabolism, neurotransmitter signaling, cardiovascular system development and function, glycosaminoglycan signaling regulation and control of amino acid biosynthesis. Central to the network activities were genes controlling hormonal regulation (ESR1), mitochondrial activity (APP, PARK2), and glucose metabolism (INS). Regulatory pathways such as G-protein coupled receptor signaling, inositol metabolism, and inflammatory response were also highlighted. These data suggested the existence of a putative "PCOS epigenomic superpathway" with three main components: glucotoxic, lipotoxic, and inflammatory. If our results are confirmed, they hint at an epigenetic at risk PCOS "signature" may thus exist that may be identifiable at birth. Additional studies are needed to confirm the results of this pilot study. PMID- 29326658 TI - Ghrelin, MicroRNAs, and Critical Limb Ischemia: Hungering for a Novel Treatment Option. AB - Critical limb ischemia (CLI) is the most severe manifestation of peripheral artery disease. It is characterized by chronic pain at rest, skin ulcerations, and gangrene tissue loss. CLI is a highly morbid condition, resulting in a severely diminished quality of life and a significant risk of mortality. The primary goal of therapy for CLI is to restore blood flow to the affected limb, which is only possible by surgery, but is inadvisable in up to 50% of patients. This subset of patients who are not candidates for revascularisation are referred to as "no-option" patients and are the focus of investigation for novel therapeutic strategies. Angiogenesis, arteriogenesis and vasculogenesis are the processes whereby new blood vessel networks form from the pre-existing vasculature and primordial cells, respectively. In therapeutic angiogenesis, exogenous stimulants are administered to promote angiogenesis and augment limb perfusion, offering a potential treatment option for "no option" patients. However, to date, very few clinical trials of therapeutic angiogenesis in patients with CLI have reported clinically significant results, and it remains a major challenge. Ghrelin, a 28-amino acid peptide, is emerging as a potential novel therapeutic for CLI. In pre-clinical models, exogenous ghrelin has been shown to induce therapeutic angiogenesis, promote muscle regeneration, and reduce oxidative stress via the modulation of microRNAs (miRs). miRs are endogenous, small, non-coding ribonucleic acids of ~20-22 nucleotides which regulate gene expression at the post-transcriptional level by either translational inhibition or by messenger ribonucleic acid cleavage. This review focuses on the mounting evidence for the use of ghrelin as a novel therapeutic for CLI, and highlights the miRs which orchestrate these physiological events. PMID- 29326660 TI - Molecular Characteristics of First IMP-4-Producing Enterobacter cloacae Sequence Type 74 and 194 in Korea. AB - The worldwide dissemination of carbapenemase-producing Enterobacteriaceae (CPE) has become a major therapeutic concern in clinical settings. Enterobacter cloacae is a major pathogen that causes serious hospital-acquired infections. We investigated the clinical characteristics and molecular mechanisms of the first IMP-4-producing E. cloacae clinical isolates in Korea. Five carbapenemase producing E. cloacae strains out of 792 E. cloacae clinical isolates, which have been identified at a university hospital in Korea between March 2014 and February 2016, were included in this study. Antimicrobial susceptibilities to imipenem, meropenem, and ertapenem were tested using E-test. Carbapenemase determinant screening, genetic environment, and multilocus sequence typing were conducted using PCR and sequencing analysis. All isolates were not susceptible to at least one of the tested carbapenems and presented highly similar pulsed-field gel electrophoresis (PFGE) patterns, evidencing hospital-wide clonal dissemination. Among all isolates harboring the blaIMP-4 carbapenemase gene, four isolates identified as predominant ST74, also contained blaCMY-2. One strain, designated as rare ST194, carried blaCMY-1. The E. cloacae strain, harboring both blaIMP-4 and blaCMY-1, was resistant to all three tested carbapenems. The blaIMP-4 gene was located on a highly mobile class 1 integron, showing a new form of the blaIMP 4-qacG-aacA4 array. This is the first description of IMP-4-producing E. cloacae strains in Korea. This observation implicates the widespread of blaIMP-4 in Enterobacteriaceae clinical isolates and provides insights into the epidemic potential and clinical therapeutic importance of IMP-4-producing E. cloacae for healthcare-associated infections. PMID- 29326661 TI - En Route towards European Clinical Breakpoints for Veterinary Antimicrobial Susceptibility Testing: A Position Paper Explaining the VetCAST Approach. AB - VetCAST is the EUCAST sub-committee for Veterinary Antimicrobial Susceptibility Testing. Its remit is to define clinical breakpoints (CBPs) for antimicrobial drugs (AMDs) used in veterinary medicine in Europe. This position paper outlines the procedures and reviews scientific options to solve challenges for the determination of specific CBPs for animal species, drug substances and disease conditions. VetCAST will adopt EUCAST approaches: the initial step will be data assessment; then procedures for decisions on the CBP; and finally the release of recommendations for CBP implementation. The principal challenges anticipated by VetCAST are those associated with the differing modalities of AMD administration, including mass medication, specific long-acting product formulations or local administration. Specific challenges comprise mastitis treatment in dairy cattle, the range of species and within species breed considerations and several other variable factors not relevant to human medicine. Each CBP will be based on consideration of: (i) an epidemiological cut-off value (ECOFF) - the highest MIC that defines the upper end of the wild-type MIC distribution; (ii) a PK/PD breakpoint obtained from pre-clinical pharmacokinetic data [this PK/PD break point is the highest possible MIC for which a given percentage of animals in the target population achieves a critical value for the selected PK/PD index (fAUC/MIC or fT > MIC)] and (iii) when possible, a clinical cut-off, that is the relationship between MIC and clinical cure. For the latter, VetCAST acknowledges the paucity of such data in veterinary medicine. When a CBP cannot be established, VetCAST will recommend use of ECOFF as surrogate. For decision steps, VetCAST will follow EUCAST procedures involving transparency, consensus and independence. VetCAST will ensure freely available dissemination of information, concerning standards, guidelines, ECOFF, PK/PD breakpoints, CBPs and other relevant information for AST implementation. Finally, after establishing a CBP, VetCAST will promulgate expert comments and/or recommendations associated with CBPs to facilitate their sound implementation in a clinical setting. PMID- 29326662 TI - MgrB Alterations Mediate Colistin Resistance in Klebsiella pneumoniae Isolates from Iran. AB - Colistin is one of the last-resort therapeutic agents to combat multidrug resistant Gram-negative bacteria (GNB) including Klebsiella pneumoniae. Although it happens rarely, resistance to colistin has been reported for several GNB. A total of 20 colistin resistant (col-R) and three colistin susceptible (col-S) clinical isolates of K. pneumoniae were studied to explore the underlying mechanisms of colistin resistance. The presence of plasmid encoded resistance genes, mcr-1, mcr-2, mcr-3, and mcr-4 genes were examined by PCR. The nucleotide sequences of pmrA, pmrB, phoP, phoQ, and mgrB genes were determined. To evaluate the association between colistin resistance and upregulation of pmrHFIJKLM and pmrCAB operons, transcriptional level of the pmrK and pmrC genes encoding for lipopolysaccharide target modifying enzymes was quantified by RT-qPCR analysis. None of the plasmid encoded resistance genes were detected in the studied isolates. Inactivation of MgrB due to nonsense mutations and insertion of IS elements was observed in 15 col-R isolates (75%). IS elements (IS5-like and IS1 like families) most commonly targeted the coding region and in one case the promoter region of the mgrB. Complementation with wild-type MgrB restored colistin susceptibility in isolates with altered mgrB. All col-R isolates lacked any genetic alterations in the pmrA, phoP, and phoQ genes and substitutions identified in the pmrB were not found to be involved in resistance conferring determined by complementation assay. Colistin resistance linked with upregulation of pmrHFIJKLM and pmrCAB operons with the pmrK and pmrC being overexpressed in 20 and 11 col-R isolates, respectively. Our results demonstrated that MgrB alterations are the major mechanisms contributing to colistin resistance in the tested K. pneumoniae isolates from Iran. PMID- 29326663 TI - Seasonal Changes in a Maize-Based Polyculture of Central Mexico Reshape the Co occurrence Networks of Soil Bacterial Communities. AB - The milpa is a traditional maize-based polyculture in Mexico that is typically practiced as rainfed agriculture. Because milpa cultivation has been practiced over a vast range of environmental and cultural conditions, this agroecosystem is recognized as an important repository of biological and cultural diversity. As for any agroecosystem, the relationship between plant development and the biogeochemical processes of the soil is critical. Although the milpa has been studied from different perspectives, the diversity and structure of microbial communities within milpa soils remain largely unexplored. In this study, we surveyed a milpa system in Central Mexico across cropping season: before planting (dry season; t1), during the early growth of plants (onset of the rainy season; t2), and before harvest (end of the rainy season; t3). In order to examine changes in community structure through time, we characterized bacterial diversity through high-throughput sequencing of 16S rRNA gene amplicons and recorded the nutrient status of multiple (5-10) soil samples from our milpa plots. We estimated microbial diversity from a total of 90 samples and constructed co occurrence networks. Although we did not find significant changes in diversity or composition of bacterial communities across time, we identified significant rearrangements in their co-occurrence network structure. We found particularly drastic changes between the first and second time points. Co-occurrence analyses showed that the bacterial community changed from a less structured network at (t1) into modules with a non-random composition of taxonomic groups at (t2). We conclude that changes in bacterial communities undetected by standard diversity analyses can become evident when performing co-occurrence network analyses. We also postulate possible functional associations among keystone groups suggested by biogeochemical processes. This study represents the first contribution on soil microbial diversity of a maize-based polyculture and shows its dynamic nature in short-term scales. PMID- 29326664 TI - Molecular Epidemiology of Methicillin-Resistant Staphylococcus aureus in Horses, Cats, and Dogs Over a 5-Year Period in France. AB - Methicillin-resistant Staphylococcus aureus (MRSA) has been reported as a worldwide pathogen in humans and animals including companion animals, i.e., cats, dogs, and horses. France lacked a comprehensive nationwide study describing the molecular features of MRSA circulating among companion animals over a large period of time. Here is reported the characterization of 130 non-duplicate clinical MRSA isolates collected from those three animal species from 2010 to 2015 through the French national Resapath network. Characterization of isolates was performed using phenotypic (antimicrobial susceptibility tests) and molecular (DNA arrays, spa-typing) methods. A horse-specific epidemiology was observed in France with the large dissemination of a unique clone, the CC398 clone harboring a Staphylococcal chromosomal cassette mec (SCCmec) type IV and spa-type t011. It was even the unique clone collected in 2015 whereas the clone CC8 USA500 (SCCmec type IV), classically described in horses, was present until 2014. Contrarily, cats and dogs were mainly infected by human-related MRSA isolates, i.e., clones usually reported in human infections, thus mirroring the human epidemiology in hospitals in France. Isolates belonging to the CC398 clone (SCCmec type IV or V) were also identified in 21.4% of dogs' and 26.5% of cats' MRSA isolates. In order to differentiate human-related from CC398 MRSA, tetracycline-resistance [or tet(M) detection] could be useful since this resistance is scarce in human related strains but constant in CC398 MRSA isolates. In all, our data give a nationwide epidemiological picture of MRSA in companion animals over a 5-year period in France, adding further epidemiological information on the contribution of those animal species to a major public health issue. Considering the wide dissemination of CC398 MRSA isolates and the fact that 11/64 (17.2%) of them presented the Immune Evasion Cluster which enhances CC398 capacities to colonize humans, a specific attention should be paid in the coming years to determine the risk associated to the transmission in people in frequent contacts with companion animals. Our data also show that the prevalence of MRSA has likely decreased in cats, dogs, and horses between 2012 and 2015 in France. This trend should be monitored in the years to come. PMID- 29326666 TI - Invasion by Cordgrass Increases Microbial Diversity and Alters Community Composition in a Mangrove Nature Reserve. AB - Invasion by exotic plant species can alter ecosystem function and reduce native plant diversity, but relatively little is known about their effects on belowground microbial communities. Here we investigated the effects of exotic cordgrass (Spartina alterniflora) invasion on the distribution of soil bacterial communities in a mangrove nature reserve of the Jiulong River Estuary, southeast China using high-throughput sequencing of 16S rRNA gene and multivariate statistical analysis. Our results showed that S. alterniflora invasion altered soil properties, and significantly increased soil bacterial taxa richness, primarily by stimulating an increase in conditionally rare or rare taxa, and changes in community composition and function. Abundant, conditionally rare and rare subcommunities exhibited similar response patterns to environment changes, with both conditionally rare and rare taxa showing a stronger response than abundant ones. Habitat generalists were detected among abundant, conditionally rare and rare taxa, whereas habitat specialists were only identified among conditionally rare taxa and rare taxa. In addition, we found that vegetation was the key factor driving these patterns. However, our comparative analysis indicated that both environmental selection, and neutral process, significantly contributed to soil bacterial community assembly. These results could improve the understanding of the microbial processes and mechanisms of cordgrass invasion, and offer empirical data of use in the restoration and management of the mangrove wetlands. PMID- 29326665 TI - Secondary Metabolites Produced during the Germination of Streptomyces coelicolor. AB - Spore awakening is a series of actions that starts with purely physical processes and continues via the launching of gene expression and metabolic activities, eventually achieving a vegetative phase of growth. In spore-forming microorganisms, the germination process is controlled by intra- and inter-species communication. However, in the Streptomyces clade, which is capable of developing a plethora of valuable compounds, the chemical signals produced during germination have not been systematically studied before. Our previously published data revealed that several secondary metabolite biosynthetic genes are expressed during germination. Therefore, we focus here on the secondary metabolite production during this developmental stage. Using high-performance liquid chromatography-mass spectrometry, we found that the sesquiterpenoid antibiotic albaflavenone, the polyketide germicidin A, and chalcone are produced during germination of the model streptomycete, S. coelicolor. Interestingly, the last two compounds revealed an inhibitory effect on the germination process. The secondary metabolites originating from the early stage of microbial growth may coordinate the development of the producer (quorum sensing) and/or play a role in competitive microflora repression (quorum quenching) in their nature environments. PMID- 29326667 TI - Comparative Metagenomics of Cellulose- and Poplar Hydrolysate-Degrading Microcosms from Gut Microflora of the Canadian Beaver (Castor canadensis) and North American Moose (Alces americanus) after Long-Term Enrichment. AB - To identify carbohydrate-active enzymes (CAZymes) that might be particularly relevant for wood fiber processing, we performed a comparative metagenomic analysis of digestive systems from Canadian beaver (Castor canadensis) and North American moose (Alces americanus) following 3 years of enrichment on either microcrystalline cellulose or poplar hydrolysate. In total, 9,386 genes encoding CAZymes and carbohydrate-binding modules (CBMs) were identified, with up to half predicted to originate from Firmicutes, Bacteroidetes, Chloroflexi, and Proteobacteria phyla, and up to 17% from unknown phyla. Both PCA and hierarchical cluster analysis distinguished the annotated glycoside hydrolase (GH) distributions identified herein, from those previously reported for grass-feeding mammals and herbivorous foragers. The CAZyme profile of moose rumen enrichments also differed from a recently reported moose rumen metagenome, most notably by the absence of GH13-appended dockerins. Consistent with substrate-driven convergence, CAZyme profiles from both poplar hydrolysate-fed cultures differed from cellulose-fed cultures, most notably by increased numbers of unique sequences belonging to families GH3, GH5, GH43, GH53, and CE1. Moreover, pairwise comparisons of moose rumen enrichments further revealed higher counts of GH127 and CE15 families in cultures fed with poplar hydrolysate. To expand our scope to lesser known carbohydrate-active proteins, we identified and compared multi domain proteins comprising both a CBM and domain of unknown function (DUF) as well as proteins with unknown function within the 416 predicted polysaccharide utilization loci (PULs). Interestingly, DUF362, identified in iron-sulfur proteins, was consistently appended to CBM9; on the other hand, proteins with unknown function from PULs shared little identity unless from identical PULs. Overall, this study sheds new light on the lignocellulose degrading capabilities of microbes originating from digestive systems of mammals known for fiber-rich diets, and highlights the value of enrichment to select new CAZymes from metagenome sequences for future biochemical characterization. PMID- 29326668 TI - Transcriptome Landscape of Mycobacterium smegmatis. AB - The non-pathogenic bacterium Mycobacterium smegmatis mc2155 has been widely used as a model organism in mycobacterial research, yet a detailed study about its transcription landscape remains to be established. Here we report the transcriptome, expression profiles and transcriptional structures through growth phase-dependent RNA sequencing (RNA-seq) as well as other related experiments. We found: (1) 2,139 transcriptional start sites (TSSs) in the genome-wide scale, of which eight samples were randomly selected and further verified by 5'-RACE; (2) 2,233 independent monocistronic or polycistronic mRNAs in the transcriptome within the operon/sub-operon structures which are classified into five groups; (3) 47.50% (1016/2139) genes were transcribed into leaderless mRNAs, with the TSSs of 41.3% (883/2139) mRNAs overlapping with the first base of the annotated start codon. Initial amino acids of MSMEG_4921 and MSMEG_6422 proteins were identified by Edman degradation, indicating the presence of distinctive widespread leaderless features in M. smegmatis mc2155. (4) 150 genes with potentially wrong structural annotation, of which 124 proposed genes have been corrected; (5) eight highly active promoters, with their activities further determined by beta-galactosidase assays. These data integrated the transcriptional landscape to genome information of model organism mc2155 and lay a solid foundation for further works in Mycobacterium. PMID- 29326669 TI - Yeast Monitoring of Wine Mixed or Sequential Fermentations Made by Native Strains from D.O. "Vinos de Madrid" Using Real-Time Quantitative PCR. AB - There is an increasing trend toward understanding the impact of non-Saccharomyces yeasts on the winemaking process. Although Saccharomyces cerevisiae is the predominant species at the end of fermentation, it has been recognized that the presence of non-Saccharomyces species during alcoholic fermentation can produce an improvement in the quality and complexity of the final wines. A previous work was developed for selecting the best combinations between S. cerevisiae and five non-Saccharomyces (Torulaspora delbrueckii, Schizosaccharomyces pombe, Candida stellata, Metschnikowia pulcherrima, and Lachancea thermotolorans) native yeast strains from D.O. "Vinos de Madrid" at the laboratory scale. The best inoculation strategies between S. cerevisiae and non-Saccharomyces strains were chosen to analyze, by real-time quantitative PCR (qPCR) combined with the use of specific primers, the dynamics of inoculated populations throughout the fermentation process at the pilot scale using the Malvar white grape variety. The efficiency of the qPCR system was verified independently of the samples matrix, founding the inoculated yeast species throughout alcoholic fermentation. Finally, we can validate the positive effect of selected co-cultures in the Malvar wine quality, highlighting the sequential cultures of T. delbrueckii CLI 918/S. cerevisiae CLI 889 and C. stellata CLI 920/S. cerevisiae CLI 889 and, mixed and sequential cultures of L. thermotolerans 9-6C combined with S. cerevisiae CLI 889. PMID- 29326670 TI - Mycobacterium smegmatis PhoU Proteins Have Overlapping Functions in Phosphate Signaling and Are Essential. AB - Many bacteria regulate gene expression in response to phosphate availability using a two-component signal transduction system, the activity of which is controlled by interaction with the Pst phosphate specific transporter and a cytoplasmic protein PhoU. Mycobacterium tuberculosis, the causative agent of tuberculosis, requires its phosphate sensing signal transduction system for virulence and antibiotic tolerance, but the molecular mechanisms of phosphate sensing remain poorly characterized. M. smegmatis serves as a model for studying mycobacterial pathogens including M. tuberculosis. M. smegmatis encodes two proteins with similarity to PhoU, but it was unknown if both proteins participated in signal transduction with the phosphate-responsive SenX3-RegX3 two component system. We constructed phoU single and double deletion mutants and tested expression of genes in the RegX3 regulon. Only the DeltaphoU1DeltaphoU2 mutant exhibited constitutive activation of all the RegX3-regulated genes examined, suggesting that M. smegmatis PhoU1 and PhoU2 have overlapping functions in inhibiting activity of the SenX3-RegX3 two-component system when phosphate is readily available. The DeltaphoU1DeltaphoU2 mutant also exhibited decreased tolerance to several anti-tubercular drugs. However, a complex plasmid swapping strategy was required to generate the DeltaphoU1DeltaphoU2 mutant, suggesting that either phoU1 or phoU2 is essential for in vitro growth of M. smegmatis. Using whole-genome sequencing, we demonstrated that all five of the DeltaphoU1DeltaphoU2 mutants we isolated had independent suppressor mutations predicted to disrupt the function of the Pst phosphate transporter, suggesting that in the absence of the PhoU proteins phosphate uptake by the Pst system is toxic. Collectively, our data demonstrate that the two M. smegmatis PhoU orthologs have overlapping functions in both controlling SenX3-RegX3 activity in response to phosphate availability and regulating phosphate transport by the Pst system. Our results suggest that M. smegmatis can serve as a tractable model for further characterization of the molecular mechanism of phosphate sensing in mycobacteria and to screen for compounds that would interfere with signal transduction and thereby increase the efficacy of existing anti-tubercular antibiotics. PMID- 29326671 TI - Specificity Characterization of SLA Class I Molecules Binding to Swine-Origin Viral Cytotoxic T Lymphocyte Epitope Peptides in Vitro. AB - Swine leukocyte antigen (SLA) class I molecules play a crucial role in generating specific cellular immune responses against viruses and other intracellular pathogens. They mainly bind and present antigens of intracellular origin to circulating MHC I-restricted cytotoxic T lymphocytes (CTLs). Binding of an appropriate epitope to an SLA class I molecule is the single most selective event in antigen presentation and the first step in the killing of infected cells by CD8+ CTLs. Moreover, the antigen epitopes are strictly restricted to specific SLA molecules. In this study, we constructed SLA class I complexes in vitro comprising viral epitope peptides, the extracellular region of the SLA-1 molecules, and beta2-microglobulin (beta2m) using splicing overlap extension polymerase chain reaction (SOE-PCR). The protein complexes were induced and expressed in an Escherichia coli prokaryotic expression system and subsequently purified and refolded. Specific binding of seven SLA-1 proteins to one classical swine fever virus (CSFV) and four porcine reproductive and respiratory syndrome virus (PRRSV) epitope peptides was detected by enzyme-linked immunosorbent assay (ELISA)-based method. The SLA-1*13:01, SLA-1*11:10, and SLA-1*11:01:02 proteins were able to bind specifically to different CTL epitopes of CSFV and PRRSV and the MHC restrictions of the five epitopes were identified. The fixed combination of Asn151Val152 residues was identified as the potentially key amino acid residues influencing the binding of viral several CTL epitope peptides to SLA 1*13:01 and SLA-1*04:01:01 proteins. The more flexible pocket E in the SLA 1*13:01 protein might have fewer steric limitations and therefore be able to accommodate more residues of viral CTL epitope peptides, and may thus play a critical biochemical role in determining the peptide-binding motif of SLA 1*13:01. Characterization of the binding specificity of peptides to SLA class I molecules provides an important basis for epitope studies of infectious diseases in swine, and for the rational development of novel porcine vaccines, as well as for detailed studies of CTL responses in pigs used as animal models. PMID- 29326673 TI - Virus Dynamics Are Influenced by Season, Tides and Advective Transport in Intertidal, Permeable Sediments. AB - Sandy surface sediments of tidal flats exhibit high microbial activity due to the fast and deep-reaching transport of oxygen and nutrients by porewater advection. On the other hand during low tide, limited transport results in nutrient and oxygen depletion concomitant to the accumulation of microbial metabolites. This study represents the first attempt to use flow-through reactors to investigate virus production, virus transport and the impact of tides and season in permeable sediments. The reactors were filled with intertidal sands of two sites (North beach site and backbarrier sand flat of Spiekeroog island in the German Wadden Sea) to best simulate advective porewater transport through the sediments. Virus and cell release along with oxygen consumption were measured in the effluents of reactors during continuous flow of water through the sediments as well as in tidal simulation experiments where alternating cycles with and without water flow (each for 6 h) were operated. The results showed net rates of virus production (0.3-13.2 * 106 viruses cm-3 h-1) and prokaryotic cell production (0.3-10.0 * 105 cells cm-3 h-1) as well as oxygen consumption rates (56-737 MUmol l-1 h-1) to be linearly correlated reflecting differences in activity, season and location of the sediments. Calculations show that total virus turnover was fast with 2 to 4 days, whereas virus-mediated cell turnover was calculated to range between 5-13 or 33-91 days depending on the assumed burst sizes (number of viruses released upon cell lysis) of 14 or 100 viruses, respectively. During the experiments, the homogenized sediments in the reactors became vertically structured with decreasing microbial activities and increasing impact of viruses on prokaryotic mortality with depth. Tidal simulation clearly showed a strong accumulation of viruses and cells in the top sections of the reactors when the flow was halted indicating a consistently high virus production during low tide. In conclusion, cell lysis products due to virus production may fuel microbial communities in the absence of advection-driven nutrient input, but are eventually washed off the surface sediment during high tide and being transported into deeper sediment layers or into the water column together with the produced viruses. PMID- 29326672 TI - HHV-6A Infection of Endometrial Epithelial Cells Induces Increased Endometrial NK Cell-Mediated Cytotoxicity. AB - Background: We have recently reported the presence of Human herpesvirus-6A (HHV 6A) DNA in the 43% of endometrial epithelial cells from primary idiopathic infertile women, with no positivity in fertile women. To investigate the possible effect of HHV-6A infection in endometrial (e)NK cells functions, we examined activating/inhibitory receptors expressed by eNK cells and the corresponding ligands on endometrial cells during HHV-6A infection. Methods: Endometrial biopsies and uterine flushing samples during the secretory phase were obtained from 20 idiopathic infertile women and twenty fertile women. HHV-6A infection of endometrial epithelial cells was analyzed by Real-Time PCR, immunofluorescence and flow cytometry. eNKs receptors and endometrial ligands expression were evaluated by immunofluorescence and flow cytometry. Results: We observed the presence of HHV-6A infection (DNA, protein) of endometrial epithelial cells in the 40% of idiopathic infertile women. The eNK from all the subgroups expressed high levels of NKG2D and NKG2A receptors. Functional studies showed that NKG2D activating receptor and FasL are involved in the acquired cytotoxic function of eNK cells during HHV-6A infection of endometrial epithelial cells. In the presence of HHV-6A infection, eNK cells increased expression of CCR2, CXCR3 and CX3CR1 chemokine receptors (p = 0.01) and endometrial epithelial cells up modulated the corresponding ligands: MCP1 (Monocyte chemotactic protein 1, CCL2), IP-10 (Interferon gamma-induced protein 10, CXCL10) and Eotaxin-3 (CCL26). Conclusion: Our results, for the first time, showed the implication of eNK cells in controlling HHV-6A endometrial infection and clarify the mechanisms that might be implicated in female idiopathic infertility. PMID- 29326674 TI - Current Insights into the Role of Rhizosphere Bacteria in Disease Suppressive Soils. AB - Disease suppressive soils offer effective protection to plants against infection by soil-borne pathogens, including fungi, oomycetes, bacteria, and nematodes. The specific disease suppression that operates in these soils is, in most cases, microbial in origin. Therefore, suppressive soils are considered as a rich resource for the discovery of beneficial microorganisms with novel antimicrobial and other plant protective traits. To date, several microbial genera have been proposed as key players in disease suppressiveness of soils, but the complexity of the microbial interactions as well as the underlying mechanisms and microbial traits remain elusive for most disease suppressive soils. Recent developments in next generation sequencing and other 'omics' technologies have provided new insights into the microbial ecology of disease suppressive soils and the identification of microbial consortia and traits involved in disease suppressiveness. Here, we review the results of recent 'omics'-based studies on the microbial basis of disease suppressive soils, with specific emphasis on the role of rhizosphere bacteria in this intriguing microbiological phenomenon. PMID- 29326675 TI - A Potential New Human Pathogen Belonging to Helicobacter Genus, Identified in a Bloodstream Infection. AB - We isolated from aerobic and anaerobic blood culture bottles from a febrile patient, a Helicobacter-like Gram negative, rod-shaped bacterium that MALDI-TOF MS failed to identify. Blood agar cultures incubated in a microaerobic atmosphere revealed a motile Gram negative rod, which was oxidase, catalase, nitrate reductase, esterase, and alkaline phosphatase positive. It grew at 42 degrees C with no detectable urease activity. Antimicrobial susceptibility testing showed that the organism was susceptible to beta-lactams, gentamicin, erythromycin, and tetracycline but resistant to ciprofloxacin. Electronic microscopy analysis revealed a 3 * 0.5 MUm curved rod bacterium harboring two sheathed amphitrichous flagella. Whole genome sequencing revealed a genome 1,708,265 base-pairs long with a GC content of 37.80% and a total of 1,697 coding sequences. The genomic analyses using the nucleotide sequences of the 16S rRNA gene, hsp60 and gyrB genes, as well as the GyrA protein sequence, and the results of Average Nucleotide Identity and in silico DNA-DNA hybridization suggest evidence for a novel Helicobacter species close to Helicobacter equorum and belonging to the group of enterohepatic Helicobacter species. As soon as the particular peptide mass fingerprint of this pathogen is added to the spectral databases, MALDI-TOF MS technology will improve its identification from clinical specimens, especially in case of "sterile infection". We propose to associate the present strain with the Latin name of the place of isolation; Caesarodunum (Tours, France) and suggest "Helicobacter caesarodunensis" for further description of this new bacterium. PMID- 29326677 TI - Production of HIV-1 vif mRNA Is Modulated by Natural Nucleotide Variations and SLSA1 RNA Structure in SA1D2prox Genomic Region. AB - Genomic RNA of HIV-1 contains localized structures critical for viral replication. Its structural analysis has demonstrated a stem-loop structure, SLSA1, in a nearby region of HIV-1 genomic splicing acceptor 1 (SA1). We have previously shown that the expression level of vif mRNA is considerably altered by some natural single-nucleotide variations (nSNVs) clustering in SLSA1 structure. In this study, besides eleven nSNVs previously identified by us, we totally found nine new nSNVs in the SLSA1-containing sequence from SA1, splicing donor 2, and through to the start codon of Vif that significantly affect the vif mRNA level, and designated the sequence SA1D2prox (142 nucleotides for HIV-1 NL4-3). We then examined by extensive variant and mutagenesis analyses how SA1D2prox sequence and SLSA1 secondary structure are related to vif mRNA level. While the secondary structure and stability of SLSA1 was largely changed by nSNVs and artificial mutations introduced to restore the original NL4-3 form from altered ones by nSNVs, no clear association of the two SLSA1 properties with vif mRNA level was observed. In contrast, when naturally occurring SA1D2prox sequences that contain multiple nSNVs were examined, we attained significant inverse correlation between the vif level and SLSA1 stability. These results may suggest that SA1D2prox sequence adapts over time, and also that the altered SA1D2prox sequence, SLSA1 stability, and vif level are mutually related. In total, we show here that the entire SA1D2prox sequence and SLSA1 stability critically contribute to the modulation of vif mRNA level. PMID- 29326678 TI - Identification of the Receptor and Cellular Ortholog of the Marek's Disease Virus (MDV) CXC Chemokine. AB - Marek's disease virus (MDV) is a cell associated alphaherpesvirus that causes fatal lymphoma in chickens. One factor that plays a crucial role in MDV pathogenesis is the viral CXC chemokine vIL-8 that was originally named after chicken interleukin 8 (cIL-8). However, a recent study demonstrated that vIL-8 recruits B cells and a subset of T cells but not neutrophils, suggesting that vIL 8 is not a cIL-8 orthologue. In this study, we set to identify the cellular orthologues and receptor of vIL-8 using in silico analyses, binding and chemotaxis assays. Sequence and phylogenetic analyses of all chicken CXC chemokines present in the recently published chicken genome revealed that vIL-8 shares the highest amino acid similarity with the CXCL13L1 variant. To evaluate if vIL-8 and CXCL13L1 are also functional orthologues, we assessed their binding properties and chemotaxis activity. We demonstrated that both vIL-8 and CXCL13 variants bind B cells and subsets of T cells, confirming that they target the same cell types. In addition, the chemokines not only bound the target cells but also induced chemotaxis. Finally, we identified CXCR5 as the receptor of vIL-8 and CXCL13 variants and confirmed that the receptor is expressed on MDV target cells. Taken together, our data demonstrate the conservation of the receptor ligand interaction between CXCR5 and CXCL13 and shed light on the origin and function of the MDV-encoded vIL-8 chemokine, which plays a crucial role in the pathogenesis of this highly oncogenic virus. PMID- 29326676 TI - Edible Cyanobacterial Genus Arthrospira: Actual State of the Art in Cultivation Methods, Genetics, and Application in Medicine. AB - The cyanobacterial genus Arthrospira appears very conserved and has been divided into five main genetic clusters on the basis of molecular taxonomy markers. Genetic studies of seven Arthrospira strains, including genome sequencing, have enabled a better understanding of those photosynthetic prokaryotes. Even though genetic manipulations have not yet been performed with success, many genomic and proteomic features such as stress adaptation, nitrogen fixation, or biofuel production have been characterized. Many of above-mentioned studies aimed to optimize the cultivation conditions. Factors like the light intensity and quality, the nitrogen source, or different modes of growth (auto-, hetero-, or mixotrophic) have been studied in detail. The scaling-up of the biomass production using photobioreactors, either closed or open, was also investigated to increase the production of useful compounds. The richness of nutrients contained in the genus Arthrospira can be used for promising applications in the biomedical domain. Ingredients such as the calcium spirulan, immulina, C phycocyanin, and gamma-linolenic acid (GLA) show a strong biological activity. Recently, its use in the fight against cancer cells was documented in many publications. The health-promoting action of "Spirulina" has been demonstrated in the case of cardiovascular diseases and age-related conditions. Some compounds also have potent immunomodulatory properties, promoting the growth of beneficial gut microflora, acting as antimicrobial and antiviral. Products derived from Arthrospira were shown to successfully replace biomaterial scaffolds in regenerative medicine. Supplementation with the cyanobacterium also improves the health of livestock and quality of the products of animal origin. They were also used in cosmetic preparations. PMID- 29326679 TI - The Biogeographical Distribution of Benthic Roseobacter Group Members along a Pacific Transect Is Structured by Nutrient Availability within the Sediments and Primary Production in Different Oceanic Provinces. AB - By now, only limited information on the Roseobacter group thriving at the seafloor is available. Hence, the current study was conducted to determine their abundance and diversity within Pacific sediments along the 180 degrees meridian. We hypothesize a distinct biogeographical distribution of benthic members of the Roseobacter group linked to nutrient availability within the sediments and productivity of the water column. Lowest cell numbers were counted at the edge of the south Pacific gyre and within the north Pacific gyre followed by an increase to the north with maximum values in the highly productive Bering Sea. Specific quantification of the Roseobacter group revealed on average a relative abundance of 1.7 and 6.3% as determined by catalyzed reported deposition-fluorescence in situ hybridization (CARD-FISH) and quantitative PCR (qPCR), respectively. Corresponding Illumina tag sequencing of 16S rRNA genes and 16S rRNA transcripts showed different compositions containing on average 0.7 and 0.9% Roseobacter affiliated OTUs of the DNA- and RNA-based communities. These OTUs were mainly assigned to uncultured members of the Roseobacter group. Among those with cultured representatives, Sedimentitalea and Sulfitobacter made up the largest proportions. The different oceanic provinces with low nutrient content such as both ocean gyres were characterized by specific communities of the Roseobacter group, distinct from those of the more productive Pacific subarctic region and the Bering Sea. However, linking the community structure to specific metabolic processes at the seafloor is hampered by the dominance of so-far uncultured members of the Roseobacter group, indicating a diversity that has yet to be explored. PMID- 29326680 TI - The Mitochondrial GTPase Gem1 Contributes to the Cell Wall Stress Response and Invasive Growth of Candida albicans. AB - The interactions of mitochondria with the endoplasmic reticulum (ER) are crucial for maintaining proper mitochondrial morphology, function and dynamics. This enables cells to utilize their mitochondria optimally for energy production and anabolism, and it further provides for metabolic control over developmental decisions. In fungi, a key mechanism by which ER and mitochondria interact is via a membrane tether, the protein complex ERMES (ER-Mitochondria Encounter Structure). In the model yeast Saccharomyces cerevisiae, the mitochondrial GTPase Gem1 interacts with ERMES, and it has been proposed to regulate its activity. Here we report on the first characterization of Gem1 in a human fungal pathogen. We show that in Candida albicans Gem1 has a dominant role in ensuring proper mitochondrial morphology, and our data is consistent with Gem1 working with ERMES in this role. Mitochondrial respiration and steady state cellular phospholipid homeostasis are not impacted by inactivation of GEM1 in C. albicans. There are two major virulence-related consequences of disrupting mitochondrial morphology by GEM1 inactivation: C. albicans becomes hypersusceptible to cell wall stress, and is unable to grow invasively. In the gem1Delta/Delta mutant, it is specifically the invasive capacity of hyphae that is compromised, not the ability to transition from yeast to hyphal morphology, and this phenotype is shared with ERMES mutants. As a consequence of the hyphal invasion defect, the gem1Delta/Delta mutant is drastically hypovirulent in the worm infection model. Activation of the mitogen activated protein (MAP) kinase Cek1 is reduced in the gem1Delta/Delta mutant, and this function could explain both the susceptibility to cell wall stress and lack of invasive growth. This result establishes a new, respiration-independent mechanism of mitochondrial control over stress signaling and hyphal functions in C. albicans. We propose that ER-mitochondria interactions and the ER-Mitochondria Organizing Network (ERMIONE) play important roles in adaptive responses in fungi, in particular cell surface-related mechanisms that drive invasive growth and stress responsive behaviors that support fungal pathogenicity. PMID- 29326681 TI - Host Specificity for Bacterial, Archaeal and Fungal Communities Determined for High- and Low-Microbial Abundance Sponge Species in Two Genera. AB - Sponges are engaged in intimate symbioses with a diversity of microorganisms from all three domains of life, namely Bacteria, Archaea and Eukarya. Sponges have been well studied and categorized for their bacterial communities, some displaying a high microbial abundance (HMA), while others show low microbial abundance (LMA). However, the associated Archaea and Eukarya have remained relatively understudied. We assessed the bacterial, archaeal and eukaryotic diversities in the LMA sponge species Dysidea avara and Dysidea etheria by deep amplicon sequencing, and compared the results to those in the HMA sponges Aplysina aerophoba and Aplysina cauliformis. D. avara and A. aerophoba are sympatric in the Mediterranean Sea, while D. etheria and A. cauliformis are sympatric in the Caribbean Sea. The bacterial communities followed a host specific pattern, with host species identity explaining most of the variation among samples. We identified OTUs shared by the Aplysina species that support a more ancient association of these microbes, before the split of the two species studied here. These shared OTUs are suitable targets for future studies of the microbial traits that mediate interactions with their hosts. Even though the archaeal communities were not as rich as the bacterial ones, we found a remarkable diversification and specificity of OTUs of the family Cenarchaeaceae and the genus Nitrosopumilus in all four sponge species studied. Similarly, the differences in fungal communities were driven by sponge identity. The structures of the communities of small eukaryotes such as dinophytes and ciliophores (alveolates), and stramenopiles, could not be explained by either sponge host, sponge genus or geographic location. Our analyses suggest that the host specificity that was previously described for sponge bacterial communities also extends to the archaeal and fungal communities, but not to other microbial eukaryotes. PMID- 29326682 TI - Prevalence, Antibiotic Susceptibility and Diversity of Vibrio parahaemolyticus Isolates in Seafood from South China. AB - Vibrio parahaemolyticus is a leading cause of foodborne infections in China and a threat to human health worldwide. The main objective of this study is to determine the prevalence and characteristic of V. parahaemolyticus isolates in fish, oyster and shrimp samples from the South China domestic consumer market. To accomplish this, we examined 504 seafood samples from 11 provinces of China. The prevalence rates were 9.38, 30.36, and 25.60%, respectively. In summer (33.33%), the prevalence of V. parahaemolyticus was more common than that detected in the winter (14.01%). In addition, we identified 98 V. parahaemolyticus strains. The antimicrobial resistance trends of our seafood isolates to 15 antimicrobial agents revealed that major isolates were resistant to ampicillin (79.59%). Furthermore, 68.38% of the isolates were identified as being multidrug resistance. The prevalence of tdh or trh genes among the isolates was 8.16 and 12.24%, respectively. ERIC-PCR and multilocus sequence typing (MLST) results enabled classification of the isolates (n = 98) into different clusters, revealing genetic variation and relatedness among the isolates. Thus, our findings demonstrate the prevalence of V. parahaemolyticus in a variety of common seafood consumed domestically in China and provides insights into the dissemination of antibiotic-resistant strains, which should improve our microbiological risk assessment knowledge associated with V. parahaemolyticus in seafoods. PMID- 29326683 TI - Role of the DNA Mismatch Repair Gene MutS4 in Driving the Evolution of Mycobacterium yongonense Type I via Homologous Recombination. AB - We recently showed that Mycobacterium yongonense could be divided into two genotypes: Type I, in which the rpoB gene has been transferred from Mycobacterium parascrofulaceum, and Type II, in which the rpoB gene has not been transferred. Comparative genome analysis of three M. yongonense Type I, two M. yongonense Type II and M. parascrofulaceum type strains were performed in this study to gain insight into gene transfer from M. parascrofulaceum into M. yongonense Type I strains. We found two genome regions transferred from M. parascrofulaceum: one contained 3 consecutive genes, including the rpoBC operon, and the other contained 57 consecutive genes that had been transferred into M. yongonense Type I genomes via homologous recombination. Further comparison between the M. yongonense Type I and II genomes revealed that Type I, but not Type II has a distinct DNA mismatch repair gene (MutS4 subfamily) that was possibly transferred via non-homologous recombination from other actinomycetes. We hypothesized that it could facilitate homologous recombination from the M. parascrofulaceum to the M. yongonense Type I genomes. We therefore generated recombinant Mycobacterium smegmatis containing a MutS4 operon of M. yongonense. We found that the M. tuberculosis rpoB fragment with a rifampin resistance-conferring mutation was more frequently inserted into recombinant M. smegmatis than the wild type, suggesting that MutS4 is a driving force in the gene transfer from M. parascrofulaceum to M. yongonense Type I strains via homologous recombination. In conclusion, our data indicated that MutS4 in M. yongonense Type I genomes may drive gene transfer from M. parascrofulaceum via homologous recombination, resulting in division of M. yongonense into two genotypes, Type I and II. PMID- 29326684 TI - In Situ Field Sequencing and Life Detection in Remote (79 degrees 26'N) Canadian High Arctic Permafrost Ice Wedge Microbial Communities. AB - Significant progress is being made in the development of the next generation of low cost life detection instrumentation with much smaller size, mass and energy requirements. Here, we describe in situ life detection and sequencing in the field in soils over laying ice wedges in polygonal permafrost terrain on Axel Heiberg Island, located in the Canadian high Arctic (79 degrees 26'N), an analog to the polygonal permafrost terrain observed on Mars. The life detection methods used here include (1) the cryo-iPlate for culturing microorganisms using diffusion of in situ nutrients into semi-solid media (2) a Microbial Activity Microassay (MAM) plate (BIOLOG Ecoplate) for detecting viable extant microorganisms through a colourimetric assay, and (3) the Oxford Nanopore MinION for nucleic acid detection and sequencing of environmental samples and the products of MAM plate and cryo-iPlate. We obtained 39 microbial isolates using the cryo-iPlate, which included several putatively novel strains based on the 16S rRNA gene, including a Pedobacter sp. (96% closest similarity in GenBank) which we partially genome sequenced using the MinION. The MAM plate successfully identified an active community capable of L-serine metabolism, which was used for metagenomic sequencing with the MinION to identify the active and enriched community. A metagenome on environmental ice wedge soil samples was completed, with base calling and uplink/downlink carried out via satellite internet. Validation of MinION sequencing using the Illumina MiSeq platform was consistent with the results obtained with the MinION. The instrumentation and technology utilized here is pre-existing, low cost, low mass, low volume, and offers the prospect of equipping micro-rovers and micro-penetrators with aggressive astrobiological capabilities. Since potentially habitable astrobiology targets have been identified (RSLs on Mars, near subsurface water ice on Mars, the plumes and oceans of Europa and Enceladus), future astrobiology missions will certainly target these areas and there is a need for direct life detection instrumentation. PMID- 29326685 TI - Forebrain Cholinergic Dysfunction and Systemic and Brain Inflammation in Murine Sepsis Survivors. AB - Sepsis, a complex disorder characterized by immune, metabolic, and neurological dysregulation, is the number one killer in the intensive care unit. Mortality remains alarmingly high even in among sepsis survivors discharged from the hospital. There is no clear strategy for managing this lethal chronic sepsis illness, which is associated with severe functional disabilities and cognitive deterioration. Providing insight into the underlying pathophysiology is desperately needed to direct new therapeutic approaches. Previous studies have shown that brain cholinergic signaling importantly regulates cognition and inflammation. Here, we studied the relationship between peripheral immunometabolic alterations and brain cholinergic and inflammatory states in mouse survivors of cecal ligation and puncture (CLP)-induced sepsis. Within 6 days, CLP resulted in 50% mortality vs. 100% survival in sham-operated controls. As compared to sham controls, sepsis survivors had significantly lower body weight, higher serum TNF, interleukin (IL)-1beta, IL-6, CXCL1, IL-10, and HMGB1 levels, a lower TNF response to LPS challenge, and lower serum insulin, leptin, and plasminogen activator inhibitor-1 levels on day 14. In the basal forebrain of mouse sepsis survivors, the number of cholinergic [choline acetyltransferase (ChAT)-positive] neurons was significantly reduced. In the hippocampus and the cortex of mouse sepsis survivors, the activity of acetylcholinesterase (AChE), the enzyme that degrades acetylcholine, as well as the expression of its encoding gene were significantly increased. In addition, the expression of the gene encoding the M1 muscarinic acetylcholine receptor was decreased in the hippocampus. In parallel with these forebrain cholinergic alterations, microglial activation (in the cortex) and increased Il1b and Il6 gene expression (in the cortex), and Il1b gene expression (in the hippocampus) were observed in mouse sepsis survivors. Furthermore, microglial activation was linked to decreased cortical ChAT protein expression and increased AChE activity. These results reinforce the notion of persistent inflammation-immunosuppression and catabolic syndrome in sepsis survivors and characterize a previously unrecognized relationship between forebrain cholinergic dysfunction and neuroinflammation in sepsis survivors. This insight is of interest for new therapeutic approaches that focus on brain cholinergic signaling for patients with chronic sepsis illness, a problem with no specific treatment. PMID- 29326686 TI - Regulation of Fn14 Receptor and NF-kappaB Underlies Inflammation in Meniere's Disease. AB - Meniere's disease (MD) is a rare disorder characterized by episodic vertigo, sensorineural hearing loss, tinnitus, and aural fullness. It is associated with a fluid imbalance between the secretion of endolymph in the cochlear duct and its reabsorption into the subarachnoid space, leading to an accumulation of endolymph in the inner ear. Epidemiological evidence, including familial aggregation, indicates a genetic contribution and a consistent association with autoimmune diseases (AD). We conducted a case-control study in two phases using an immune genotyping array in a total of 420 patients with bilateral MD and 1,630 controls. We have identified the first locus, at 6p21.33, suggesting an association with bilateral MD [meta-analysis leading signal rs4947296, OR = 2.089 (1.661-2.627); p = 1.39 * 10-09]. Gene expression profiles of homozygous genotype-selected peripheral blood mononuclear cells (PBMCs) demonstrated that this region is a trans-expression quantitative trait locus (eQTL) in PBMCs. Signaling analysis predicted several tumor necrosis factor-related pathways, the TWEAK/Fn14 pathway being the top candidate (p = 2.42 * 10-11). This pathway is involved in the modulation of inflammation in several human AD, including multiple sclerosis, systemic lupus erythematosus, or rheumatoid arthritis. In vitro studies with genotype-selected lymphoblastoid cells from patients with MD suggest that this trans-eQTL may regulate cellular proliferation in lymphoid cells through the TWEAK/Fn14 pathway by increasing the translation of NF-kappaB. Taken together; these findings suggest that the carriers of the risk genotype may develop an NF kappaB-mediated inflammatory response in MD. PMID- 29326688 TI - Cigarette Smoke Increases Endothelial CXCL16-Leukocyte CXCR6 Adhesion In Vitro and In Vivo. Potential Consequences in Chronic Obstructive Pulmonary Disease. AB - Cardiovascular disease (CVD) is a major comorbidity in chronic obstructive pulmonary disease (COPD). Although the mechanism of its development remains largely unknown, it appears to be associated with cigarette consumption and reduced lung function. Therefore, the aim of this study was to investigate the potential link between water-soluble cigarette smoke extract (CSE)-induced endothelial dysfunction and the function of CXCL16/CXCR6 axis on the initial attachment of leukocytes, in addition to its possible impact on COPD-associated systemic inflammation. To do this, we employed several experimental approaches, including RNA silencing and flow cytometry analysis, the dynamic flow chamber technique, and intravital microscopy in the cremasteric arterioles of animals exposed to cigarette smoke (CS). CSE-induced arterial CXCL16 expression, leading to increased platelet-leukocyte and mononuclear cell adhesiveness. CSE-induced CXCL16 expression was dependent on Nox5 expression and subsequent RhoA/p38 MAPK/NF-kappaB activation. Flow cytometry analysis revealed that COPD patients (n = 35) presented greater numbers of activated circulating platelets (PAC-1+ and P selectin+) expressing CXCL16 and CXCR6 as compared with age-matched controls (n = 17), with a higher number of CXCR6+-platelets in the smoking COPD group than in ex-smokers. This correlated with enhanced circulating CXCR6+-platelet-leukocyte aggregates in COPD patients. The increase in circulating numbers of CXCR6 expressing platelets and mononuclear cells resulted in enhanced platelet leukocyte and leukocyte adhesiveness to CSE-stimulated arterial endothelium, which was greater than that found in age-matched controls and was partly dependent on endothelial CXCL16 upregulation. Furthermore, CS exposure provoked CXCL16-dependent leukocyte-arteriolar adhesion in cremasteric arterioles, which was significantly reduced in animals with a nonfunctional CXCR6 receptor. In conclusion, we provide the first evidence that increased numbers of CXCR6 expressing circulating platelets and mononuclear leukocytes from patients with COPD might be a marker of systemic inflammation with potential consequences in CVD development. Accordingly, CXCL16/CXCR6 axis blockade might constitute a new therapeutic approach for decreasing the risk of CVD in COPD patients. PMID- 29326690 TI - Identifying the Presence of Prostate Cancer in Individuals with PSA Levels <20 ng ml-1 Using Computational Data Extraction Analysis of High Dimensional Peripheral Blood Flow Cytometric Phenotyping Data. AB - Determining whether an asymptomatic individual with Prostate-Specific Antigen (PSA) levels below 20 ng ml-1 has prostate cancer in the absence of definitive, biopsy-based evidence continues to present a significant challenge to clinicians who must decide whether such individuals with low PSA values have prostate cancer. Herein, we present an advanced computational data extraction approach which can identify the presence of prostate cancer in men with PSA levels <20 ng ml-1 on the basis of peripheral blood immune cell profiles that have been generated using multi-parameter flow cytometry. Statistical analysis of immune phenotyping datasets relating to the presence and prevalence of key leukocyte populations in the peripheral blood, as generated from individuals undergoing routine tests for prostate cancer (including tissue biopsy) using multi parametric flow cytometric analysis, was unable to identify significant relationships between leukocyte population profiles and the presence of benign disease (no prostate cancer) or prostate cancer. By contrast, a Genetic Algorithm computational approach identified a subset of five flow cytometry features (CD8+CD45RA-CD27-CD28- (CD8+ Effector Memory cells); CD4+CD45RA-CD27-CD28- (CD4+ Terminally Differentiated Effector Memory Cells re-expressing CD45RA); CD3-CD19+ (B cells); CD3+CD56+CD8+CD4+ (NKT cells)) from a set of twenty features, which could potentially discriminate between benign disease and prostate cancer. These features were used to construct a prostate cancer prediction model using the k Nearest-Neighbor classification algorithm. The proposed model, which takes as input the set of flow cytometry features, outperformed the predictive model which takes PSA values as input. Specifically, the flow cytometry-based model achieved Accuracy = 83.33%, AUC = 83.40%, and optimal ROC points of FPR = 16.13%, TPR = 82.93%, whereas the PSA-based model achieved Accuracy = 77.78%, AUC = 76.95%, and optimal ROC points of FPR = 29.03%, TPR = 82.93%. Combining PSA and flow cytometry predictors achieved Accuracy = 79.17%, AUC = 78.17% and optimal ROC points of FPR = 29.03%, TPR = 85.37%. The results demonstrate the value of computational intelligence-based approaches for interrogating immunophenotyping datasets and that combining peripheral blood phenotypic profiling with PSA levels improves diagnostic accuracy compared to using PSA test alone. These studies also demonstrate that the presence of cancer is reflected in changes in the peripheral blood immune phenotype profile which can be identified using computational analysis and interpretation of complex flow cytometry datasets. PMID- 29326689 TI - Mesenchymal Stromal/Stem Cells: A New Era in the Cell-Based Targeted Gene Therapy of Cancer. AB - In recent years, in light of the promising potentials of mesenchymal stromal/stem cells (MSCs) for carrying therapeutic anticancer genes, a complete revisitation on old chemotherapy-based paradigms has been established. This review attempted to bring forward and introduce the novel therapeutic opportunities of using genetically engineered MSCs. The simplicities and advantages of MSCs for medical applications make them a unique and promising option in the case of cancer therapy. Some of the superiorities of using MSCs as therapeutic gene micro carriers are the easy cell-extraction procedures and their abundant proliferation capacity in vitro without losing their main biological properties. Targeted therapy by using MSCs as the delivery vehicles of therapeutic genes is a new approach in the treatment of various types of cancers. Some of the distinct properties of MSCs, such as tumor-tropism, non-immunogenicity, stimulatory effect on the anti-inflammatory molecules, inhibitory effect on inflammatory responses, non-toxicity against the normal tissues, and easy processes for the clinical use, have formed the basis of attention to MSCs. They can be easily used for the treatment of damaged or injured tissues, regenerative medicine, and immune disorders. This review focused on the drugability of MSCs and their potential for the delivery of candidate anticancer genes. It also briefly reviewed the vectors and methods used for MSC-mediated gene therapy of malignancies. Also, the challenges, limitations, and considerations in using MSCs for gene therapy of cancer and the new methods developed for resolution of these problems are reviewed. PMID- 29326691 TI - Suppression Colitis and Colitis-Associated Colon Cancer by Anti-S100a9 Antibody in Mice. AB - The association between chronic inflammation and cancer has long been recognized. The inflammatory bowel disease ulcerative colitis frequently progresses to colon cancer; however, the underlying mechanism is still unclear. S100a9 has been emerged as an important pro-inflammatory mediator in acute and chronic inflammation, and the aberrant expression of S100a9 also contributes to tumorigenic processes such as cell proliferation, angiogenesis, metastasis, and immune evasion. We previously revealed that S100a8 and S100a9 are highly activated and play an important role in the process of colitis-associated carcinogenesis, which suggests an attractive therapeutic target for ulcerative colitis and related colon cancer. Here, we report that administration of a neutralizing anti-S100a9 antibody significantly ameliorated dextran sulfate sodium (DSS)-induced colitis and accompanied by diminished cellular infiltrate of innate immunity cells (macrophages, neutrophils, and dendritic cells) and production of pro-inflammatory cytokines (Tnfalpha, Il1beta, Ifngamma, Il6, Il17a, Il23a, Il4, and Il12a). The protective effect of anti-S100a9 antibody treatment was also observed in azoxymethane (AOM)/DSS-induced colitis-associated cancer (CAC) mouse model. The inflammatory response, tumor cell proliferation, and immune cells infiltration in the colon tissues were suppressed by anti-S100a9 antibody. Gene expression profiling showed that key pathways known to be involved in CAC development, such as Wnt signaling pathway, PI3K-Akt signaling pathway, cytokine-cytokine receptor interaction, and ECM-receptor interaction pathway, were suppressed after treatment with anti-S100a9 antibody in CAC mice. In view of the protective effect of neutralizing anti-S100a9 antibody against DSS-induced colitis and AOM/DSS-induced CAC in mouse model, this study suggests that anti S100a9 antibody may provide a novel therapeutic approach to treat ulcerative colitis and may decrease the risk for developing CAC. PMID- 29326692 TI - The Absence of NOD1 Enhances Killing of Aspergillus fumigatus Through Modulation of Dectin-1 Expression. AB - One of the major life-threatening infections for which severely immunocompromised patients are at risk is invasive aspergillosis (IA). Despite the current treatment options, the increasing antifungal resistance and poor outcome highlight the need for novel therapeutic strategies to improve outcome of patients with IA. In the current study, we investigated whether and how the intracellular pattern recognition receptor NOD1 is involved in host defense against Aspergillus fumigatus. When exploring the role of NOD1 in an experimental mouse model, we found that Nod1-/- mice were protected against IA and demonstrated reduced fungal outgrowth in the lungs. We found that macrophages derived from bone marrow of Nod1-/- mice were more efficiently inducing reactive oxygen species and cytokines in response to Aspergillus. Most strikingly, these cells were highly potent in killing A. fumigatus compared with wild-type cells. In line, human macrophages in which NOD1 was silenced demonstrated augmented Aspergillus killing and NOD1 stimulation decreased fungal killing. The differentially altered killing capacity of NOD1 silencing versus NOD1 activation was associated with alterations in dectin-1 expression, with activation of NOD1 reducing dectin-1 expression. Furthermore, we were able to demonstrate that Nod1 /- mice have elevated dectin-1 expression in the lung and bone marrow, and silencing of NOD1 gene expression in human macrophages increases dectin-1 expression. The enhanced dectin-1 expression may be the mechanism of enhanced fungal killing of Nod1-/- cells and human cells in which NOD1 was silenced, since blockade of dectin-1 reversed the augmented killing in these cells. Collectively, our data demonstrate that NOD1 receptor plays an inhibitory role in the host defense against Aspergillus. This provides a rationale to develop novel immunotherapeutic strategies for treatment of aspergillosis that target the NOD1 receptor, to enhance the efficiency of host immune cells to clear the infection by increasing fungal killing and cytokine responses. PMID- 29326693 TI - Ticks, Ixodes scapularis, Feed Repeatedly on White-Footed Mice despite Strong Inflammatory Response: An Expanding Paradigm for Understanding Tick-Host Interactions. AB - Ticks transmit infectious agents including bacteria, viruses and protozoa. However, their transmission may be compromised by host resistance to repeated tick feeding. Increasing host resistance to repeated tick bites is well known in laboratory animals, including intense inflammation at the bite sites. However, it is not known whether this also occurs in wild rodents such as white-footed mice, Peromyscus leucopus, and other wildlife, or if it occurs at all. According to the "host immune incompetence" hypothesis, if these mice do not have a strong inflammatory response, they would not reject repeated tick bites by Ixodes scapularis. To test this hypothesis, histopathological studies were done comparing dermal inflammation in P. leucopus versus guinea pigs, Cavia porcellus, repeatedly infested with I. scapularis. In P. leucopus, the immune cell composition was like that seen in laboratory mouse models, with some differences. However, there was a broad sessile lesion with intact dermal architecture, likely enabling the ticks to continue feeding unimpeded. In contrast, in C. porcellus, there was a relatively similar mixed cellular profile, but there also was a large, leukocyte-filled cavitary lesion and scab-like hyperkeratotic changes to the epidermal layer, along with itching and apparent pain. Ticks attached to sensitized C. porcellus fed poorly or were dislodged, presumably due to the weakened anchoring of the tick's mouthparts cemented in the heavily inflamed and disintegrating dermal tissues. This is the first time that the architecture of the skin lesions has been recognized as a major factor in understanding tick-host tolerance versus tick bite rejection. These findings broadly strengthen previous work done on lab animal models but also help explain why I. scapularis can repeatedly parasitize white-footed mice, supporting the "immune evasion theory" but cannot repeatedly parasitize other, non-permissive hosts such as guinea pigs. PMID- 29326687 TI - AS03- and MF59-Adjuvanted Influenza Vaccines in Children. AB - Influenza is a major cause of respiratory disease leading to hospitalization in young children. However, seasonal trivalent influenza vaccines (TIVs) have been shown to be ineffective and poorly immunogenic in this population. The development of live-attenuated influenza vaccines and adjuvanted vaccines are important advances in the prevention of influenza in young children. The oil-in water emulsions MF59 and adjuvant systems 03 (AS03) have been used as adjuvants in both seasonal adjuvanted trivalent influenza vaccines (ATIVs) and pandemic monovalent influenza vaccines. Compared with non-adjuvanted vaccine responses, these vaccines induce a more robust and persistent antibody response for both homologous and heterologous influenza strains in infants and young children. Evidence of a significant improvement in vaccine efficacy with these adjuvanted vaccines resulted in the use of the monovalent (A/H1N1) AS03-adjuvanted vaccine in children in the 2009 influenza pandemic and the licensure of the seasonal MF59 ATIV for children aged 6 months to 2 years in Canada. The mechanism of action of MF59 and AS03 remains unclear. Adjuvants such as MF59 induce proinflammatory cytokines and chemokines, including CXCL10, but independently of type-1 interferon. This proinflammatory response is associated with improved recruitment, activation and maturation of antigen presenting cells at the injection site. In young children MF59 ATIV produced more homogenous and robust transcriptional responses, more similar to adult-like patterns, than did TIV. Early gene signatures characteristic of the innate immune response, which correlated with antibody titers were also identified. Differences were detected when comparing child and adult responses including opposite trends in gene set enrichment at day 3 postvaccination and, unlike adult data, a lack of correlation between magnitude of plasmablast response at day 7 and antibody titers at day 28 in children. These insights show the utility of novel approaches in understanding new adjuvants and their importance for developing improved influenza vaccines for children. PMID- 29326694 TI - The Fos-Related Antigen 1-JUNB/Activator Protein 1 Transcription Complex, a Downstream Target of Signal Transducer and Activator of Transcription 3, Induces T Helper 17 Differentiation and Promotes Experimental Autoimmune Arthritis. AB - Dysfunction of T helper 17 (Th17) cells leads to chronic inflammatory disorders. Signal transducer and activator of transcription 3 (STAT3) orchestrates the expression of proinflammatory cytokines and pathogenic cell differentiation from interleukin (IL)-17-producing Th17 cells. However, the pathways mediated by STAT3 signaling are not fully understood. Here, we observed that Fos-related antigen 1 (FRA1) and JUNB are directly involved in STAT3 binding to sites in the promoters of Fosl1 and Junb. Promoter binding increased expression of IL-17 and the development of Th17 cells. Overexpression of Fra1 and Junb in mice resulted in susceptibility to collagen-induced arthritis and an increase in Th17 cell numbers and inflammatory cytokine production. In patients with rheumatoid arthritis, FRA1 and JUNB were colocalized with STAT3 in the inflamed synovium. These observations suggest that FRA1 and JUNB are associated closely with STAT3 activation, and that this activation leads to Th17 cell differentiation in autoimmune diseases and inflammation. PMID- 29326696 TI - Editorial: Natural Antibodies in Health and Disease. PMID- 29326695 TI - Caveolin-1 Expression Increases upon Maturation in Dendritic Cells and Promotes Their Migration to Lymph Nodes Thereby Favoring the Induction of CD8+ T Cell Responses. AB - Dendritic cell (DC) trafficking from peripheral tissues to lymph nodes (LNs) is a key step required to initiate T cell responses against pathogens as well as tumors. In this context, cellular membrane protrusions and the actin cytoskeleton are essential to guide DC migration towards chemotactic signals. Caveolin-1 (CAV1) is a scaffolding protein that modulates signaling pathways leading to remodeling of the actin cytoskeleton and enhanced migration of cancer cells. However, whether CAV1 is relevant for DC function and specifically for DC migration to LNs is unknown. Here, we show that CAV1 expression is upregulated in DCs upon LPS- and TNF-alpha-induced maturation. CAV1 deficiency did not affect differentiation, maturation, or the ability of DCs to activate CD8+ T cells in vitro. However, CAV1-deficient (CAV1-/-) DCs displayed reduced in vivo trafficking to draining LNs in control and inflammatory conditions. In vitro, CAV1-/- DCs showed reduced directional migration in CCL21 gradients in transwell assays without affecting migration velocity in confined microchannels or three dimensional collagen matrices. In addition, CAV1-/- DCs displayed reduced activation of the small GTPase Rac1, a regulator of actin cytoskeletal remodeling, and lower numbers of F-actin-forming protrusions. Furthermore, mice adoptively transferred with peptide-pulsed CAV1-/- DCs showed reduced CD8+ T cell responses and antitumor protection. Our results suggest that CAV1 promotes the activation of Rac1 and the formation of membrane protrusions that favor DC chemotactic trafficking toward LNs where they can initiate cytotoxic T cell responses. PMID- 29326697 TI - Pacific Biosciences Sequencing and IMGT/HighV-QUEST Analysis of Full-Length Single Chain Fragment Variable from an In Vivo Selected Phage-Display Combinatorial Library. AB - Phage-display selection of immunoglobulin (IG) or antibody single chain Fragment variable (scFv) from combinatorial libraries is widely used for identifying new antibodies for novel targets. Next-generation sequencing (NGS) has recently emerged as a new method for the high throughput characterization of IG and T cell receptor (TR) immune repertoires both in vivo and in vitro. However, challenges remain for the NGS sequencing of scFv from combinatorial libraries owing to the scFv length (>800 bp) and the presence of two variable domains [variable heavy (VH) and variable light (VL) for IG] associated by a peptide linker in a single chain. Here, we show that single-molecule real-time (SMRT) sequencing with the Pacific Biosciences RS II platform allows for the generation of full-length scFv reads obtained from an in vivo selection of scFv-phages in an animal model of atherosclerosis. We first amplified the DNA of the phagemid inserts from scFv phages eluted from an aortic section at the third round of the in vivo selection. From this amplified DNA, 450,558 reads were obtained from 15 SMRT cells. Highly accurate circular consensus sequences from these reads were generated, filtered by quality and then analyzed by IMGT/HighV-QUEST with the functionality for scFv. Full-length scFv were identified and characterized in 348,659 reads. Full-length scFv sequencing is an absolute requirement for analyzing the associated VH and VL domains enriched during the in vivo panning rounds. In order to further validate the ability of SMRT sequencing to provide high quality, full-length scFv sequences, we tracked the reads of an scFv-phage clone P3 previously identified by biological assays and Sanger sequencing. Sixty P3 reads showed 100% identity with the full-length scFv of 767 bp, 53 of them covering the whole insert of 977 bp, which encompassed the primer sequences. The remaining seven reads were identical over a shortened length of 939 bp that excludes the vicinity of primers at both ends. Interestingly these reads were obtained from each of the 15 SMRT cells. Thus, the SMRT sequencing method and the IMGT/HighV-QUEST functionality for scFv provides a straightforward protocol for characterization of full-length scFv from combinatorial phage libraries. PMID- 29326698 TI - CXCR1/2 Antagonism Is Protective during Influenza and Post-Influenza Pneumococcal Infection. AB - Rationale: Influenza A infections are a leading cause of morbidity and mortality worldwide especially when associated with secondary pneumococcal infections. Inflammation is important to control pathogen proliferation but may also cause tissue injury and death. CXCR1/2 are chemokine receptors relevant for the recruitment of neutrophils. We investigated the role of CXCR1/2 during influenza, pneumococcal, and post-influenza pneumococcal infections. Methods: Mice were infected with influenza A virus (IAV) or Streptococcus pneumoniae and then treated daily with the CXCR1/2 antagonist DF2162. To study secondary pneumococcal infection, mice were infected with a sublethal inoculum of IAV then infected with S. pneumoniae 14 days later. DF2162 was given in a therapeutic schedule from days 3 to 6 after influenza infection. Lethality, weight loss, inflammation, virus/bacteria counts, and lung injury were assessed. Results: CXCL1 and CXCL2 were produced at high levels during IAV infection. DF2162 treatment decreased morbidity and this was associated with decreased infiltration of neutrophils in the lungs and reduced pulmonary damage and viral titers. During S. pneumoniae infection, DF2162 treatment decreased neutrophil recruitment, pulmonary damage, and lethality rates, without affecting bacteria burden. Therapeutic treatment with DF2162 during sublethal IAV infection reduced the morbidity associated with virus infection and also decreased the magnitude of inflammation, lung damage, and number of bacteria in the blood of mice subsequently infected with S. pneumoniae. Conclusion: Modulation of the inflammatory response by blocking CXCR1/2 improves disease outcome during respiratory influenza and pneumococcal infections, without compromising the ability of the murine host to deal with infection. Altogether, inhibition of CXCR1/2 may be a valid therapeutic strategy for treating lung infections caused by these pathogens, especially controlling secondary bacterial infection after influenza. PMID- 29326700 TI - MTBVAC: Attenuating the Human Pathogen of Tuberculosis (TB) Toward a Promising Vaccine against the TB Epidemic. AB - Bacille Calmette-Guerin (BCG) is a live-attenuated strain of Mycobacterium bovis developed a century ago by repeated subculture. It remains the only vaccine against tuberculosis (TB) in use today, and it offers variable protection against the respiratory forms of TB responsible for transmission. The principal genetic basis for BCG attenuation is the loss of the region of difference 1 (RD1) that includes the genes codifying for production and export of the major virulence factor ESAT6. Today more than 13 TB vaccine candidates are in clinical evaluation. One of these candidates is MTBVAC, which is based on a rationally attenuated Mycobacterium tuberculosis clinical isolate belonging to modern lineage 4, one of the most widespread lineages among humans. MTBVAC conserves most of the T cell epitopes described for TB including the major immunodominant antigens ESAT6 and CFP10 of the RD1, deleted in BCG. After almost 20 years of discovery and preclinical development, MTBVAC is the only live attenuated vaccine based on a human pathogen that has successfully entered clinical trials as a preventive vaccine in newborns, aiming to replace BCG, and as a preventive vaccine in adolescents and adults (BCG-vaccinated at birth). Our recent preclinical studies have demonstrated that MTBVAC-induced immunity to ESAT6 and CFP10 correlate with improved efficacy relative to BCG encouraging exploration of these responses in human clinical trials as potential biomarkers and identification of these antigens as possible correlates of vaccine-induced protection. Such data would be extremely valuable as they would greatly accelerate clinical development to efficacy trials. PMID- 29326699 TI - Single-Domain Antibodies As Therapeutics against Human Viral Diseases. AB - In full-size formats, monoclonal antibodies have been highly successful as therapeutics against cancer and immune diseases. However, their large size leads to inaccessibility of some epitopes and relatively high production costs. As an alternative, single-domain antibodies (sdAbs) offer special advantages compared to full-size antibodies, including smaller size, larger number of accessible epitopes, relatively low production costs and improved robustness. Currently, sdAbs are being developed against a number of viruses, including human immunodeficiency virus-1 (HIV-1), influenza viruses, hepatitis C virus (HCV), respiratory syncytial virus (RSV), and enteric viruses. Although sdAbs are very potent inhibitors of viral infections, no sdAbs have been approved for clinical use against virial infection or any other diseases. In this review, we discuss the current state of research on sdAbs against viruses and their potential as therapeutics against human viral diseases. PMID- 29326702 TI - Accuracy of Programs for the Determination of Human Leukocyte Antigen Alleles from Next-Generation Sequencing Data. AB - The human leukocyte antigen (HLA) genes code for proteins that play a central role in the function of the immune system by presenting peptide antigens to T cells. As HLA genes show extremely high genetic polymorphism, HLA typing at the allele level is demanding and is based on DNA sequencing. Determination of HLA alleles is warranted as HLA alleles are major genetic risk factors in autoimmune diseases and are matched in transplantation. Here, we compared the accuracy of several published HLA-typing algorithms that are based on next-generation sequencing (NGS) data. As genome sequencing is becoming increasingly common in research, we wanted to test how well HLA alleles can be deduced from genome data produced in studies with objectives other than HLA typing and in platforms not especially designed for HLA typing. The accuracies were assessed using datasets consisting of NGS data produced using an in-house sequencing platform, including the full 4 Mbp HLA segment, from 94 stem cell transplantation patients and exome sequences from 63 samples of the 1000 Genomes collection. In the patient dataset, none of the software gave perfect results for all the samples and genes when programs were used with the default settings. However, we found that ensemble prediction of the results or modifications of the settings could be used to improve accuracy. For the exome-only data, most of the algorithms did not perform very well. The results indicate that the use of these algorithms for accurate HLA allele determination is not straightforward when based on NGS data not especially targeted to the HLA typing and their accurate use requires HLA expertise. PMID- 29326701 TI - Life and Death of Activated T Cells: How Are They Different from Naive T Cells? AB - T cells are pivotal in immunity and immunopathology. After activation, T cells undergo a clonal expansion and differentiation followed by a contraction phase, once the pathogen has been cleared. Cell survival and cell death are critical for controlling the numbers of naive T cells, effector, and memory T cells. While naive T cell survival has been studied for a long time, more effort has gone into understanding the survival and death of activated T cells. Despite this effort, there is still much to be learnt about T cell survival, as T cells transition from naive to effector to memory. One key advance is the development of inhibitors that may allow the temporal study of survival mechanisms operating in these distinct cell states. Naive T cells were highly reliant on BCL-2 and sensitive to BCL-2 inhibition. Activated T cells are remarkably different in their regulation of apoptosis by pro- and antiapoptotic members of the BCL-2 family, rendering them differentially sensitive to antagonists blocking the function of one or more members of this family. Recent progress in understanding other programmed cell death mechanisms, especially necroptosis, suggests a unique role for alternative pathways in regulating death of activated T cells. Furthermore, we highlight a mechanism of epigenetic regulation of cell survival unique to activated T cells. Together, we present an update of our current understanding of the survival requirement of activated T cells. PMID- 29326703 TI - Both Systemic and Intra-articular Immunization with Citrullinated Peptides Are Needed to Induce Arthritis in the Macaque. AB - Objectives: Anti-citrullinated peptides antibodies (ACPAs) have high specificity for the diagnosis of rheumatoid arthritis (RA), but their role in the pathophysiology is not fully established. The main genetic risk factor for RA, the shared epitope in major histocompatibility complex class II, is associated with ACPAs. Among certain non-human primates, 8% carry the shared epitope called H6 haplotype, and being similar to humans, are ideal candidates to study the role of ACPAs in RA. The goal of this study was to develop a macaque model of RA based on immunization against citrullinated peptides to generate an ACPA-mediated model of arthritis. Methods: Cynomolgus macaques were immunized with four citrullinated peptides from vimentin, fibrinogen, and aggrecan, known to induce T-cell response in RA patients, and received an intra-articular (IA) boost with the same four citrullinated peptides pooled. Results: In the macaque, the T-cell response was specific to citrullinated peptides. Antibodies generated in response to immunization were cross-reactive between the citrulline and arginine peptides. The presence of the H6 haplotype did not affect the magnitude of the immune response. Since no clinical response was observed, macaques received an IA boost with the same four peptides pooled and incomplete Freund's adjuvant, which led to a prolonged neutrophil-rich mono-arthritis, preferentially in H6-positive animals. Conversely, animals boosted with incomplete Freund's adjuvant alone presented only transient mono-arthritis. Conclusion: This two-hit model of prolonged mono-arthritis mimics what could happen in RA. Despite the limited number of joints with disease in the macaque model, the model appears unique to study the events occurring during the preclinical phase of RA, from immunization against citrullinated peptides to the clinical appearance of disease. PMID- 29326705 TI - Mycobacterium tuberculosis Modulates miR-106b-5p to Control Cathepsin S Expression Resulting in Higher Pathogen Survival and Poor T-Cell Activation. AB - The success of tuberculosis (TB) bacillus, Mycobacterium tuberculosis (Mtb), relies on the ability to survive in host cells and escape to immune surveillance and activation. We recently demonstrated that Mtb manipulation of host lysosomal cathepsins in macrophages leads to decreased enzymatic activity and pathogen survival. In addition, while searching for microRNAs (miRNAs) involved in posttranscriptional gene regulation during mycobacteria infection of human macrophages, we found that selected miRNAs such as miR-106b-5p were specifically upregulated by pathogenic mycobacteria. Here, we show that miR-106b-5p is actively manipulated by Mtb to ensure its survival in macrophages. Using an in silico prediction approach, we identified miR-106b-5p with a potential binding to the 3'-untranslated region of cathepsin S (CtsS) mRNA. We demonstrated by luminescence-based methods that miR-106b-5p indeed targets CTSS mRNA resulting in protein translation silencing. Moreover, miR-106b-5p gain-of-function experiments lead to a decreased CtsS expression favoring Mtb intracellular survival. By contrast, miR-106b-5p loss-of-function in infected cells was concomitant with increased CtsS expression, with significant intracellular killing of Mtb and T cell activation. Modulation of miR-106b-5p did not impact necrosis, apoptosis or autophagy arguing that miR-106b-5p directly targeted CtsS expression as a way for Mtb to avoid exposure to degradative enzymes in the endocytic pathway. Altogether, our data suggest that manipulation of miR-106b-5p as a potential target for host-directed therapy for Mtb infection. PMID- 29326706 TI - Targeting and Recognition of Toll-Like Receptors by Plant and Pathogen Lectins. AB - We have reported that some lectins act as agonists of toll-like receptors (TLRs) and have immunomodulatory properties. The plant lectin ArtinM, for example, interacts with N-glycans of TLR2, whereas other lectins of microbial origin interact with TLR2 and TLR4. Expression of the receptors on the surface of antigen-presenting cells exposes N-glycans that may be targeted by lectins of different structures, specificities, and origins. In vitro, these interactions trigger cell signaling that leads to NF-kappaB activation and production of the Th1 polarizing cytokine IL-12. In vivo, a same sequence of events follows the administration of an active lectin to mice infected with an intracellular pathogen, conferring resistance to the pathogen. The lectins of the human pathogens Toxoplasma gondii (TgMIC1 and TgMIC4) and Paracoccidioides brasiliensis (Paracoccin), by recognition and activation of TLR2 and TLR4, induce cell events and in vivo effects comparable to the promoted by the plant lectin ArtinM. In this article, we highlight these two distinct mechanisms for activating antigen presenting cells. On the one hand, TLRs act as sensors for the presence of conventional pathogen-associated molecular patterns, such as microbial lipids. On the other hand, we showed that TLR-mediated cell activation might be triggered by an alternative way, in which lectins bind to TLRs N-glycans and stimulate cells to increase the expression of pro-inflammatory cytokines. This process may lead to the development of new pharmaceutical tools that promote protective immune responses directed against intracellular pathogens and tumors. PMID- 29326704 TI - Innate Lymphoid Cells in HIV/SIV Infections. AB - Over the past several years, new populations of innate lymphocytes have been described in mice and primates that are critical for mucosal homeostasis, microbial regulation, and immune defense. Generally conserved from mice to humans, innate lymphoid cells (ILC) have been divided primarily into three subpopulations based on phenotypic and functional repertoires: ILC1 bear similarities to natural killer cells; ILC2 have overlapping functions with TH2 cells; and ILC3 that share many functions with TH17/TH22 cells. ILC are specifically enriched at mucosal surfaces and are possibly one of the earliest responders during viral infections besides being involved in the homeostasis of gut-associated lymphoid tissue and maintenance of gut epithelial barrier integrity. Burgeoning evidence also suggests that there is an early and sustained abrogation of ILC function and numbers during HIV and pathogenic SIV infections, most notably ILC3 in the gastrointestinal tract, which leads to disruption of the mucosal barrier and dysregulation of the local immune system. A better understanding of the direct or indirect mechanisms of loss and dysfunction will be critical to immunotherapeutics aimed at restoring these cells. Herein, we review the current literature on ILC with a particular emphasis on ILC3 and their role(s) in mucosal immunology and the significance of disrupting the ILC niche during HIV and SIV infections. PMID- 29326707 TI - Extensive Basal Level Activation of Complement Mannose-Binding Lectin-Associated Serine Protease-3: Kinetic Modeling of Lectin Pathway Activation Provides Possible Mechanism. AB - Serine proteases (SPs) are typically synthesized as precursors, termed proenzymes or zymogens, and the fully active form is produced via limited proteolysis by another protease or by autoactivation. The lectin pathway of the complement system is initiated by mannose-binding lectin (MBL)-associated SPs (MASP)-1, and MASP-2, which are known to be present as proenzymes in blood. The third SP of the lectin pathway, MASP-3, was recently shown to be the major activator, and the exclusive "resting blood" activator of profactor D, producing factor D, the initiator protease of the alternative pathway. Because only activated MASP-3 is capable of carrying out this cleavage, it was presumed that a significant fraction of MASP-3 must be present in the active form in resting blood. Here, we aimed to detect active MASP-3 in the blood by a more direct technique and to quantitate the active to zymogen ratio. First, MASPs were partially purified (enriched) from human plasma samples by affinity chromatography using immobilized MBL in the presence of inhibitors. Using this MASP pool, only the zymogen form of MASP-1 was detected by Western blot, whereas over 70% MASP-3 was in an activated form in the same samples. Furthermore, the active to zymogen ratio of MASP-3 showed little individual variation. It is enigmatic how MASP-3, which is not able to autoactivate, is present mostly as an active enzyme, whereas MASP-1, which has a potent autoactivation capability, is predominantly proenzymic in resting blood. In an attempt to explain this phenomenon, we modeled the basal level fluid-phase activation of lectin pathway proteases and their subsequent inactivation by C1 inhibitor and antithrombin using available and newly determined kinetic constants. The model can explain extensive MASP-3 activation only if we assume efficient intracomplex activation of MASP-3 by zymogen MASP-1. On the other hand, the model is in good agreement with the fact that MASP-1 and -2 are predominantly proenzymic and some of them is present in the form of inactive serpin-protease complexes. As an alternative hypothesis, MASP-3 activation by proprotein convertases is also discussed. PMID- 29326708 TI - High Amounts of S100-Alarmins Confer Antimicrobial Activity on Human Breast Milk Targeting Pathogens Relevant in Neonatal Sepsis. AB - Sepsis is a leading cause of perinatal mortality worldwide. Breast milk (BM) feeding is protective against neonatal sepsis, but the molecular mechanisms remain unexplained. Despite various supplementations with potential bioactive components from BM formula feeding cannot protect from sepsis. S100-alarmins are important immunoregulators in newborns preventing excessive inflammation. At high concentrations, the S100A8/A9 protein complex also has antimicrobial properties due to its metal ion chelation capacity. To assess whether BM contains S100 alarmins that might mediate the sepsis-protective effect of BM 97 human BM samples stratified for gestational age, mode of delivery and sampling after birth were collected and analyzed. S100A8/A9 levels were massively elevated after birth (p < 0.0005). They slowly decreased during the first month of life, then reaching levels comparable to normal values in adult serum. The concentration of S100A8/A9 in BM was significantly higher after term compared with preterm birth (extremely preterm, p < 0.005; moderate preterm, p < 0.05) and after vaginal delivery compared with cesarean section (p < 0.0005). In newborn s100a9-/- mice, enterally supplied S100-alarmins could be retrieved systemically in the plasma. To explore the antimicrobial activity against common causal pathogens of neonatal sepsis, purified S100-alarmins and unmodified as well as S100A8/A9-depleted BM were used in growth inhibition tests. The high amount of S100A8/A9 proved to be an important mediator of the antimicrobial activity of BM, especially inhibiting the growth of manganese (Mn) sensitive bacteria such as Staphylococcus aureus (p < 0.00005) and group B streptococci (p < 0.005). Depletion of S100A8/A9 significantly reduced this effect (p < 0.05, respectively). The growth of Escherichia coli was also inhibited by BM (p < 0.00005) as well as by S100A8/A9 in culture assays (p < 0.05). But its growth in BM remained unaffected by the removal of S100A8/A9 and was neither dependent on Mn suggesting that the antimicrobial effects of S100A8/A9 in BM are primarily mediated by its Mn chelating capacity. In summary, the enteral supply of bioavailable, antimicrobially active amounts of S100-alarmins might be a promising option to protect newborns at high risk from infections and sepsis. PMID- 29326709 TI - End-Stage Renal Disease Causes Skewing in the TCR Vbeta-Repertoire Primarily within CD8+ T Cell Subsets. AB - A broad T cell receptor (TCR-) repertoire is required for an effective immune response. TCR-repertoire diversity declines with age. End-stage renal disease (ESRD) patients have a prematurely aged T cell system which is associated with defective T cell-mediated immunity. Recently, we showed that ESRD may significantly skew the TCR Vbeta-repertoire. Here, we assessed the impact of ESRD on the TCR Vbeta-repertoire within different T cell subsets using a multiparameter flow-cytometry-based assay, controlling for effects of aging and CMV latency. Percentages of 24 different TCR Vbeta-families were tested in circulating naive and memory T cell subsets of 10 ESRD patients and 10 age- and CMV-serostatus-matched healthy individuals (HI). The Gini-index, a parameter used in economics to describe the distribution of income, was calculated to determine the extent of skewing at the subset level taking into account frequencies of all 24 TCR Vbeta-families. In addition, using HI as reference population, the differential impact of ESRD was assessed on clonal expansion at the level of an individual TCR Vbeta-family. CD8+, but not CD4+, T cell differentiation was associated with higher Gini-TCR indices. Gini-TCR indices were already significantly higher for different CD8+ memory T cell subsets of younger ESRD patients compared to their age-matched HI. ESRD induced expansions of not one TCR Vbeta-family in particular and expansions were predominantly observed within the CD8+ T cell compartment. All ESRD patients had expanded TCR Vbeta-families within total CD8+ T cells and the median (IQ range) number of expanded TCR Vbeta families/patient amounted to 2 (1-4). Interestingly, ESRD also induced clonal expansions of TCR Vbeta-families within naive CD8+ T cells as 8 out of 10 patients had expanded TCR Vbeta-families. The median (IQ range) number of expanded families/patient amounted to 1 (1-1) within naive CD8+ T cells. In conclusion, loss of renal function skews the TCR Vbeta-repertoire already in younger patients by inducing expansions of different TCR Vbeta-families within the various T cell subsets, primarily affecting the CD8+ T cell compartment. This skewed TCR Vbeta-repertoire may be associated with a less broad and diverse T cell-mediated immunity. PMID- 29326710 TI - Ubiquitin-Specific Protease 14 Negatively Regulates Toll-Like Receptor 4-Mediated Signaling and Autophagy Induction by Inhibiting Ubiquitination of TAK1-Binding Protein 2 and Beclin 1. AB - Ubiquitin-specific protease 14 (USP14), one of three proteasome-associated deubiquitinating enzymes, has multifunctional roles in cellular context. Here, we report a novel molecular mechanism and function of USP14 in regulating autophagy induction and nuclear factor-kappa B (NF-kappaB) activation induced by toll-like receptor (TLR) 4 (TLR4). USP14 interacted with tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) and interrupted the association of Beclin 1 with TRAF6, leading to inhibition of TRAF6-mediated ubiquitination of Beclin 1. Reduced expression of USP14 in USP14-knockdown (USP14KD) THP-1 cells enhanced autophagy induction upon TLR4 stimulation as shown by the increased conversion of cytosolic LC3-I to membrane-bound LC3-II. Moreover, USP14KD human breast carcinoma MDA-MB-231 cells and USP14KD human hepatic adenocarcinoma SK-HEP-1 cells showed increased cell migration and invasion, indicating that USP14 is negatively implicated in the cancer progression by the inhibition of autophagy induction. Furthermore, we found that USP14 interacted with TAK1-binding protein (TAB) 2 protein and induced deubiquitination of TAB 2, a key factor in the activation of NF-kappaB. Functionally, overexpression of USP14 suppressed TLR4 induced activation of NF-kappaB. In contrast, USP14KD THP-1 cells showed enhanced activation of NF-kappaB, NF-kappaB-dependent gene expression, and production of pro-inflammatory cytokines such as IL-6, IL-1beta, and tumor necrosis factor alpha. Taken together, our data demonstrate that USP14 can negatively regulate autophagy induction by inhibiting Beclin 1 ubiquitination, interrupting association between TRAF6 and Beclin 1, and affecting TLR4-induced activation of NF-kappaB through deubiquitination of TAB 2 protein. PMID- 29326711 TI - Harnessing the Power of Invariant Natural Killer T Cells in Cancer Immunotherapy. AB - Invariant natural killer T (iNKT) cells are a distinct subset of innate-like lymphocytes bearing an invariant T-cell receptor, through which they recognize lipid antigens presented by monomorphic CD1d molecules. Upon activation, iNKT cells are capable of not only having a direct effector function but also transactivating NK cells, maturing dendritic cells, and activating B cells, through secretion of several cytokines and cognate TCR-CD1d interaction. Endowed with the ability to orchestrate an all-encompassing immune response, iNKT cells are critical in shaping immune responses against pathogens and cancer cells. In this review, we examine the critical role of iNKT cells in antitumor responses from two perspectives: (i) how iNKT cells potentiate antitumor immunity and (ii) how CD1d+ tumor cells may modulate their own expression of CD1d molecules. We further explore hypotheses to explain iNKT cell activation in the context of cancer and how the antitumor effects of iNKT cells can be exploited in different forms of cancer immunotherapy, including their role in the development of cancer vaccines. PMID- 29326712 TI - Autophagy: A Potential Therapeutic Target for Reversing Sepsis-Induced Immunosuppression. AB - Sepsis remains the leading cause of mortality in intensive care units and an intractable condition due to uncontrolled inflammation together with immune suppression. Dysfunction of immune cells is considered as a major cause for poor outcome of septic patients but with little specific treatments. Currently, autophagy that is recognized as an important self-protective mechanism for cellular survival exhibits great potential for maintaining immune homeostasis and alleviating multiple organ failure, which further improves survival of septic animals. The protective effect of autophagy on immune cells covers both innate and adaptive immune responses and refers to various cellular receptors and intracellular signaling. Multiple drugs and measures are reportedly beneficial for septic challenge by inducing autophagy process. Therefore, autophagy might be an effective target for reversing immunosuppression compromised by sepsis. PMID- 29326714 TI - Mucosal-Associated Invariant T Cell Interactions with Commensal and Pathogenic Bacteria: Potential Role in Antimicrobial Immunity in the Child. AB - Mucosal-associated invariant T (MAIT) cells are unconventional CD3+CD161high T lymphocytes that recognize vitamin B2 (riboflavin) biosynthesis precursor derivatives presented by the MHC-I related protein, MR1. In humans, their T cell receptor is composed of a Valpha7.2-Jalpha33/20/12 chain, combined with a restricted set of Vbeta chains. MAIT cells are very abundant in the liver (up to 40% of resident T cells) and in mucosal tissues, such as the lung and gut. In adult peripheral blood, they represent up to 10% of circulating T cells, whereas they are very few in cord blood. This large number of MAIT cells in the adult likely results from their gradual expansion with age following repeated encounters with riboflavin-producing microbes. Upon recognition of MR1 ligands, MAIT cells have the capacity to rapidly eliminate bacterially infected cells through the production of inflammatory cytokines (IFNgamma, TNFalpha, and IL-17) and cytotoxic effector molecules (perforin and granzyme B). Thus, MAIT cells may play a crucial role in antimicrobial defense, in particular at mucosal sites. In addition, MAIT cells have been implicated in diseases of non-microbial etiology, including autoimmunity and other inflammatory diseases. Although their participation in various clinical settings has received increased attention in adults, data in children are scarce. Due to their innate-like characteristics, MAIT cells might be particularly important to control microbial infections in the young age, when long-term protective adaptive immunity is not fully developed. Herein, we review the data showing how MAIT cells may control microbial infections and how they discriminate pathogens from commensals, with a focus on models relevant for childhood infections. PMID- 29326715 TI - Transcriptomics in Human Challenge Models. AB - Human challenge models, in which volunteers are experimentally infected with a pathogen of interest, provide the opportunity to directly identify both natural and vaccine-induced correlates of protection. In this review, we highlight how the application of transcriptomics to human challenge studies allows for the identification of novel correlates and gives insight into the immunological pathways required to develop functional immunity. In malaria challenge trials for example, innate immune pathways appear to play a previously underappreciated role in conferring protective immunity. Transcriptomic analyses of samples obtained in human challenge studies can also deepen our understanding of the immune responses preceding symptom onset, allowing characterization of innate immunity and early gene signatures, which may influence disease outcome. Influenza challenge studies demonstrate that these gene signatures have diagnostic potential in the context of pandemics, in which presymptomatic diagnosis of at-risk individuals could allow early initiation of antiviral treatment and help limit transmission. Furthermore, gene expression analysis facilitates the identification of host factors contributing to disease susceptibility, such as C4BPA expression in enterotoxigenic Escherichia coli infection. Overall, these studies highlight the exceptional value of transcriptional data generated in human challenge trials and illustrate the broad impact molecular data analysis may have on global health through rational vaccine design and biomarker discovery. PMID- 29326716 TI - Interleukin-6 Trans-Signaling Pathway Promotes Immunosuppressive Myeloid-Derived Suppressor Cells via Suppression of Suppressor of Cytokine Signaling 3 in Breast Cancer. AB - Interleukin-6 (IL-6) has been reported to stimulate myeloid-derived suppressor cells (MDSCs) in multiple cancers, but the molecular events involved in this process are not completely understood. We previously found that cancer-derived IL 6 induces T cell suppression of MDSCs in vitro via the activation of STAT3/IDO signaling pathway. In this study, we aimed to elucidate the underlying mechanisms. We found that in primary breast cancer tissues, cancer-derived IL-6 was positively correlated with infiltration of MDSCs in situ, which was accompanied by more aggressive tumor phenotypes and worse clinical outcomes. In vitro IL-6 stimulated the amplification of MDSCs and promoted their T cell suppression ability, which were fully inhibited by an IL-6-specific blocking antibody. Our results demonstrate that IL-6-dependent suppressor of cytokine signaling 3 (SOCS3) suppression in MDSCs induced phosphorylation of the JAK1, JAK2, TYK2, STAT1, and STAT3 proteins, which was correlated with T cell suppression of MDSCs in vitro. Therefore, dysfunction in the SOCS feedback loop promoted long-term activation of the JAK/STAT signaling pathway and predominantly contributed to IL-6-mediated effects on MDSCs. Furthermore, IL-6-induced inhibition of SOCS3 and activation of the JAK/STAT pathway was correlated with an elevated expression of IL-6 receptor alpha (CD126), in which the soluble CD126 mediated IL-6 trans-signaling pathway significantly regulated IL-6-mediated effects on MDSCs. Finally, IL-6-induced SOCS3 dysfunction and sustained activation of the JAK/STAT signaling pathway promoted the amplification and immunosuppressive function of breast cancer MDSCs in vitro and in vivo, and thus blocking the IL-6 signaling pathway is a promising therapeutic strategy for eliminating and inhibiting MDSCs to improve prognosis. PMID- 29326713 TI - Macrophage-Bacteria Interactions-A Lipid-Centric Relationship. AB - Macrophages are professional phagocytes at the front line of immune defenses against foreign bodies and microbial pathogens. Various bacteria, which are responsible for deadly diseases including tuberculosis and salmonellosis, are capable of hijacking this important immune cell type and thrive intracellularly, either in the cytoplasm or in specialized vacuoles. Tight regulation of cellular metabolism is critical in shaping the macrophage polarization states and immune functions. Lipids, besides being the bulk component of biological membranes, serve as energy sources as well as signaling molecules during infection and inflammation. With the advent of systems-scale analyses of genes, transcripts, proteins, and metabolites, in combination with classical biology, it is increasingly evident that macrophages undergo extensive lipid remodeling during activation and infection. Each bacterium species has evolved its own tactics to manipulate host metabolism toward its own advantage. Furthermore, modulation of host lipid metabolism affects disease susceptibility and outcome of infections, highlighting the critical roles of lipids in infectious diseases. Here, we will review the emerging roles of lipids in the complex host-pathogen relationship and discuss recent methodologies employed to probe these versatile metabolites during the infection process. An improved understanding of the lipid-centric nature of infections can lead to the identification of the Achilles' heel of the pathogens and host-directed targets for therapeutic interventions. Currently, lipid moderating drugs are clinically available for a range of non-communicable diseases, which we anticipate can potentially be tapped into for various infections. PMID- 29326717 TI - Long-Lasting Graft-Derived Donor T Cells Contribute to the Pathogenesis of Chronic Graft-versus-Host Disease in Mice. AB - Chronic graft-versus-host disease (cGVHD) is a major complication in long-term survivors of allogeneic hematopoietic stem cell transplantation (allo-HSCT). Graft-derived T cells (TG) have been implicated in the induction of cGVHD; however, the extent of their contribution to the pathogenesis of cGVHD remains unclear. Using a mouse model of cGVHD, we demonstrate that TG predominate over hematopoietic stem cell-derived T cells generated de novo (THSC) in cGVHD affected organs such as the liver and lung even at day 63 after allo-HSCT. Persisting TG, in particular CD8+ TG, not only displayed an exhausted or senescent phenotype but also contained a substantial proportion of cells that had the potential to proliferate and produce inflammatory cytokines. Host antigens indirectly presented by donor HSC-derived hematopoietic cells were involved in the maintenance of TG in the reconstituted host. Selective depletion of TG in the chronic phase of disease resulted in the expansion of THSC and thus neither the survival nor histopathology of cGVHD was ameliorated. On the other hand, THSC depletion caused activation of TG and resulted in a lethal TG-mediated exacerbation of GVHD. The findings presented here clarify the pathological role of long-lasting TG in cGVHD. PMID- 29326718 TI - Deletion of TGF-beta1 Increases Bacterial Clearance by Cytotoxic T Cells in a Tuberculosis Granuloma Model. AB - Mycobacterium tuberculosis is the pathogenic bacterium that causes tuberculosis (TB), one of the most lethal infectious diseases in the world. The only vaccine against TB is minimally protective, and multi-drug resistant TB necessitates new therapeutics to treat infection. Developing new therapies requires a better understanding of the complex host immune response to infection, including dissecting the processes leading to formation of granulomas, the dense cellular lesions associated with TB. In this work, we pair experimental and computational modeling studies to explore cytokine regulation in the context of TB. We use our next-generation hybrid multi-scale model of granuloma formation (GranSim) to capture molecular, cellular, and tissue scale dynamics of granuloma formation. We identify TGF-beta1 as a major inhibitor of cytotoxic T-cell effector function in granulomas. Deletion of TGF-beta1 from the system results in improved bacterial clearance and lesion sterilization. We also identify a novel dichotomous regulation of cytotoxic T cells and macrophages by TGF-beta1 and IL-10, respectively. These findings suggest that increasing cytotoxic T-cell effector functions may increase bacterial clearance in granulomas and highlight potential new therapeutic targets for treating TB. PMID- 29326720 TI - Improved Cytotoxic T Lymphocyte Responses to Vaccination with Porcine Reproductive and Respiratory Syndrome Virus in 4-1BB Transgenic Pigs. AB - Vaccination is the most reliable measure to prevent infectious diseases in domestic animals. Development of novel vaccines demands extensive studies with new technologies, such as using novel adjuvants and immunomodulatory molecules. The co-stimulatory molecule 4-1BB provides a key signal that directs the fate of T cells during activation, and thus is important to their function in immune protection. To determine whether host immune responses to viral infection could be promoted by enhancing 4-1BB co-stimulation, in this study, we produced transgenic pig clones expressing an extra copy of the 4-1BB gene by clustered regularly interspaced short palindromic repeats/CRISPR-associated gene 9-mediated homologous recombination at the Rosa26 locus. The immune responses of transgenic pigs to porcine reproductive and respiratory syndrome virus (PRRSV) vaccine were determined on day 14. We show that peripheral blood lymphocytes of transgenic pigs expressed around twice the level of 4-1BB mRNA than those of control pigs. We also found IL-2, TNF-alpha, and granzyme B mRNA levels as well as PRRSV specific IFN-gamma response were significantly upregulated in 4-1BB transgenic pigs, leading to more efficient cytotoxic T lymphocyte (CTL) killing, whereas the expressions of IL-4, IL-17, and Foxp3 were not affected. These results indicate that higher levels of 4-1BB expression involve in promoting Th1 differentiation and enhancing specific CTL responses to PRRSV, and provide a novel approach to increase the efficacy of current vaccines to control the infectious diseases. PMID- 29326719 TI - Thyroid Autoantibodies Display both "Original Antigenic Sin" and Epitope Spreading. AB - Evidence for original antigenic sin in spontaneous thyroid autoimmunity is revealed by autoantibody interactions with immunodominant regions on thyroid autoantigens, thyroglobulin (Tg), thyroid peroxidase (TPO), and the thyrotropin receptor (TSHR) A-subunit. In contrast, antibodies induced by immunization of rabbits or mice recognize diverse epitopes. Recognition of immunodominant regions persists despite fluctuations in autoantibody levels following treatment or over time. The enhancement of spontaneously arising pathogenic TSHR antibodies in transgenic human thyrotropin receptor/NOD.H2h4 mice by injecting a non-pathogenic form of TSHR A-subunit protein also provides evidence for original antigenic sin. From other studies, antigen presentation by B cells, not dendritic cells, is likely responsible for original antigenic sin. Recognition of restricted epitopes on the large glycosylated thyroid autoantigens (60-kDa A-subunit, 100-kDa TPO, and 600-kDa Tg) facilitates exploring the amino acid locations in the immunodominant regions. Epitope spreading has also been revealed by autoantibodies in thyroid autoimmunity. In humans, and in mice that spontaneously develop autoimmunity to all three thyroid autoantigens, autoantibodies develop first to Tg and later to TPO and the TSHR A-subunit. The pattern of intermolecular epitope spreading is related in part to the thyroidal content of Tg, TPO and TSHR A-subunit and to the molecular sizes of these proteins. Importantly, the epitope spreading pattern provides a rationale for future antigen-specific manipulation to block the development of all thyroid autoantibodies by inducing tolerance to Tg, first in the autoantigen cascade. Because of its abundance, Tg may be the autoantigen of choice to explore antigen specific treatment, preventing the development of pathogenic TSHR antibodies. PMID- 29326722 TI - Regular Wounding in a Natural System: Bacteria Associated With Reproductive Organs of Bedbugs and Their Quorum Sensing Abilities. AB - During wounding, tissues are disrupted so that bacteria can easily enter the host and trigger a host response. Both the host response and bacterial communication can occur through quorum sensing (QS) and quorum sensing inhibition (QSI). Here, we characterize the effect of wounding on the host-associated bacterial community of the bed bug. This is a model system where the male is wounding the female during every mating. Whereas several aspects of the microbial involvement during wounding have been previously examined, it is not clear to what extent QS and QSI play a role. We find that the microbiome differs depending on mating and feeding status of female bedbugs and is specific to the location of isolation. Most organs of bedbugs harbor bacteria, which are capable of both QS and QSI signaling. By focusing on the prokaryotic quorum communication system, we provide a baseline for future research in this unique system. We advocate the bedbug system as suitable for studying the effects of bacteria on reproduction and for addressing prokaryote and eukaryote communication during wounding. PMID- 29326721 TI - Defenders and Challengers of Endothelial Barrier Function. AB - Regulated vascular permeability is an essential feature of normal physiology and its dysfunction is associated with major human diseases ranging from cancer to inflammation and ischemic heart diseases. Integrity of endothelial cells also play a prominent role in the outcome of surgical procedures and organ transplant. Endothelial barrier function and integrity are regulated by a plethora of highly specialized transmembrane receptors, including claudin family proteins, occludin, junctional adhesion molecules (JAMs), vascular endothelial (VE)-cadherin, and the newly identified immunoglobulin (Ig) and proline-rich receptor-1 (IGPR-1) through various distinct mechanisms and signaling. On the other hand, vascular endothelial growth factor (VEGF) and its tyrosine kinase receptor, VEGF receptor 2, play a central role in the destabilization of endothelial barrier function. While claudins and occludin regulate cell-cell junction via recruitment of zonula occludens (ZO), cadherins via catenin proteins, and JAMs via ZO and afadin, IGPR 1 recruits bullous pemphigoid antigen 1 [also called dystonin (DST) and SH3 protein interacting with Nck90/WISH (SH3 protein interacting with Nck)]. Endothelial barrier function is moderated by the function of transmembrane receptors and signaling events that act to defend or destabilize it. Here, I highlight recent advances that have provided new insights into endothelial barrier function and mechanisms involved. Further investigation of these mechanisms could lead to the discovery of novel therapeutic targets for human diseases associated with endothelial dysfunction. PMID- 29326723 TI - Value of the Overall Pneumococcal Polysaccharide Response in the Diagnosis of Primary Humoral Immunodeficiencies. AB - Background: An overall response assay [OVA, based on a 23-valent pneumococcal polysaccharide vaccine (PPV23)] is widely used to screen for anti-pneumococcal antibodies. Given the heterogeneity of response from one polysaccharide (PS) to another, a World Health Organization-standardized serotype-specific enzyme-linked immunosorbent assay (SSA) is considered to be the only reliable method for testing anti-PS antibody responses in individuals with suspected primary immunodeficiencies (PIDs). Objective: To evaluate the OVA relative to the reference SSA. Methods: Serum samples of adult patients referred for a suspected PID were collected before and then 4-8 weeks after immunization with PPV23. The anti-pneumococcal response was systematically assessed with an SSA (7-16 serotypes) and interpreted according to the American Academy of Asthma, Allergy and Immunology's current guidelines. We used receiver operating characteristic curves and agreement indices to assess the OVA's diagnostic value in a first cohort. In order to validate these findings, a second (validation) cohort was then prospectively included. Results: Sixty-two adult patients were included, and 42 (67.7%) were defined as poor responders according to the SSA. Only the post immunization titer in the OVA was able to correctly identify poor responders; a titer below 110 mg/L gave a positive predictive value of 100% [identifying 24 (57.1%) of the 42 poor responders], and similar levels of diagnostic performance were observed in the validation cohort. The pre-vaccination antibody titer, the post/pre-vaccination antibody titer ratio and a post-vaccination titer above 110 mg/L in the OVA were not predictive of the response in the SSA. Conclusion: A post-vaccination antibody titer below 110 mg/L in the OVA was constantly associated with a poor PPV23 response using the SSA. In all other cases, SSA is the only reliable method for assessing diagnostic vaccination with PPV23. PMID- 29326724 TI - beta2 Integrins As Regulators of Dendritic Cell, Monocyte, and Macrophage Function. AB - Emerging evidence suggests that the beta2 integrin family of adhesion molecules have an important role in suppressing immune activation and inflammation. beta2 integrins are important adhesion and signaling molecules that are exclusively expressed on leukocytes. The four beta2 integrins (CD11a, CD11b, CD11c, and CD11d paired with the beta2 chain CD18) play important roles in regulating three key aspects of immune cell function: recruitment to sites of inflammation; cell-cell contact formation; and downstream effects on cellular signaling. Through these three processes, beta2 integrins both contribute to and regulate immune responses. This review explores the pro- and anti-inflammatory effects of beta2 integrins in monocytes, macrophages, and dendritic cells and how they influence the outcome of immune responses. We furthermore discuss how imbalances in beta2 integrin function can have far-reaching effects on mounting appropriate immune responses, potentially influencing the development and progression of autoimmune and inflammatory diseases. Therapeutic targeting of beta2 integrins, therefore, holds enormous potential in exploring treatment options for a variety of inflammatory conditions. PMID- 29326725 TI - Anti-inflammatory Effects of Heme Oxygenase-1 Depend on Adenosine A2A- and A2B Receptor Signaling in Acute Pulmonary Inflammation. AB - Acute pulmonary inflammation is still a frightening complication in intensive care units. In our previous study, we determined that heme oxygenase (HO)-1 had anti-inflammatory effects in pulmonary inflammation. Recent literature has emphasized a link between HO-1 and the nucleotide adenosine. Since adenosine A2A- and A2B-receptors play a pivotal role in pulmonary inflammation, we investigated their link to the enzyme HO-1. In a murine model of pulmonary inflammation, the activation of HO-1 by hemin significantly decreased polymorphonuclear leukocyte (PMN) migration into the lung. This anti-inflammatory reduction of PMN migration was abolished in A2A- and A2B-knockout mice. Administration of hemin significantly reduced chemokine levels in the BAL of wild-type animals but had no effects in A2A-/- and A2B-/- mice. Microvascular permeability was significantly attenuated in HO-1-stimulated wild-type mice, but not in A2A-/- and A2B-/- mice. The activity of HO-1 rose after LPS inhalation in wild-type animals and, surprisingly, also in A2A-/- and A2B-/- mice after the additional administration of hemin. Immunofluorescence images of animals revealed alveolar macrophages to be the major source of HO-1 activity in both knockout strains-in contrast to wild type animals, where HO-1 was also significantly augmented in the lung tissue. In vitro studies on PMN migration further confirmed our in vivo findings. In conclusion, we linked the anti-inflammatory effects of HO-1 to functional A2A/A2B receptor signaling under conditions of pulmonary inflammation. Our findings may explain why targeting HO-1 in acute pulmonary inflammation has failed to prove effective in some patients, since septic patients have altered adenosine receptor expression. PMID- 29326726 TI - Apoptotic Cell Clearance in Drosophila melanogaster. AB - The swift clearance of apoptotic cells (ACs) (efferocytosis) by phagocytes is a critical event during development of all multicellular organisms. It is achieved through phagocytosis by professional or amateur phagocytes. Failure in this process can lead to the development of inflammatory autoimmune or neurodegenerative diseases. AC clearance has been conserved throughout evolution, although many details in its mechanisms remain to be explored. It has been studied in the context of mammalian macrophages, and in the nematode Caenorhabditis elegans, which lacks "professional" phagocytes such as macrophages, but in which other cell types can engulf apoptotic corpses. In Drosophila melanogaster, ACs are engulfed by macrophages, glial, and epithelial cells. Drosophila macrophages perform similar functions to those of mammalian macrophages. They are professional phagocytes that participate in phagocytosis of ACs and pathogens. Study of AC clearance in Drosophila has identified some key elements, like the receptors Croquemort and Draper, promoting Drosophila as a suitable model to genetically dissect this process. In this review, we survey recent works of AC clearance pathways in Drosophila, and discuss the physiological outcomes and consequences of this process. PMID- 29326727 TI - Gut Microbiota Dysbiosis Drives and Implies Novel Therapeutic Strategies for Diabetes Mellitus and Related Metabolic Diseases. AB - Accumulating evidence over the past decade has linked the development of metabolic syndrome related to diabetes to variations in gut microbiota, an emerging, critical homeostatic regulator of host energy metabolism and immune responses. Mechanistic studies in rodent models have revealed an ever-increasing multitude of molecular mechanisms whereby the gut microbiota interacts with various host sensing and signaling pathways, leading to modulation of endocrine system, immune responses, nervous system activity, and hence, the predisposition to metabolic diseases. Remarkably, the microbiota-driven immune responses in metabolic tissues and the host nutrient-sensing mechanisms of gut microbial metabolites, in particular short-chain fatty acids, have been significantly associated with the proneness to diabetes and related disorders. This review will synthesize the recent efforts on unraveling the mediating role of gut microbiota in the pathogenesis of metabolic diseases, aiming to reveal new therapeutic opportunities. PMID- 29326729 TI - Mapping QTLs Controlling Flowering Time and Important Agronomic Traits in Pearl Millet. AB - Pearl millet [Pennisetum glaucum (L.) R. Br.] is a staple crop for the people of arid and semi-arid regions of the world. It is fast gaining importance as a climate resilient nutricereal. Exploiting the bold seeded, semi-dwarf, and early flowering genotypes in pearl millet is a key breeding strategy to enhance yield, adaptability, and for adequate food in resource-poor zones. Genetic variation for agronomic traits of pearl millet inbreds can be used to dissect complex traits through quantitative trait locus (QTL) mapping. This study was undertaken to map a set of agronomically important traits like flowering time (FT), plant height (PH), panicle length (PL), and grain weight (self and open-pollinated seeds) in the recombinant inbred line (RIL) population of ICMB 841-P3 * 863B-P2 cross. Excluding grain weight (open pollinated), heritabilities for FT, PH, PL, grain weight (selfed) were in high to medium range. A total of six QTLs for FT were detected on five chromosomes, 13 QTLs for PH on six chromosomes, 11 QTLs for PL on five chromosomes, and 14 QTLs for 1,000-grain weight (TGW) spanning five chromosomes. One major QTL on LG3 was common for FT and PH. Three major QTLs for PL, one each on LG1, LG2, and LG6B were detected. The large effect QTL for TGW (self) on LG6B had a phenotypic variance (R2) of 62.1%. The R2 for FT, TGW (self), and PL ranged from 22.3 to 59.4%. A total of 21 digenic interactions were discovered for FT (R2 = 18-40%) and PL (R2 = 13-19%). The epistatic effects did not reveal any significant QTL * QTL * environment (QQE) interactions. The mapped QTLs for flowering time and other agronomic traits in present experiment can be used for marker-assisted selection (MAS) and genomic selection (GS) breeding programs. PMID- 29326728 TI - Immunoglobulin G1 Allotype Influences Antibody Subclass Distribution in Response to HIV gp140 Vaccination. AB - Antibody subclasses exhibit extensive polymorphisms (allotypes) that could potentially impact the quality of HIV-vaccine induced B cell responses. Allotypes of immunoglobulin (Ig) G1, the most abundant serum antibody, have been shown to display altered functional properties in regard to serum half-life, Fc-receptor binding and FcRn-mediated mucosal transcytosis. To investigate the potential link between allotypic IgG1-variants and vaccine-generated humoral responses in a cohort of 14 HIV vaccine recipients, we developed a novel protocol for rapid IgG1 allotyping. We combined PCR and ELISA assays in a dual approach to determine the IgG1 allotype identity (G1m3 and/or G1m1) of trial participants, using human plasma and RNA isolated from PBMC. The IgG1-allotype distribution of our participants mirrored previously reported results for caucasoid populations. We observed elevated levels of HIV gp140-specific IgG1 and decreased IgG2 levels associated with the G1m1-allele, in contrast to G1m3 carriers. These data suggest that vaccinees homozygous for G1m1 are predisposed to develop elevated Ag specific IgG1:IgG2 ratios compared to G1m3-carriers. This elevated IgG1:IgG2 ratio was further associated with higher FcgammaR-dimer engagement, a surrogate for potential antibody-dependent cellular cytotoxicity (ADCC) and antibody dependent cellular phagocytosis (ADCP) function. Although preliminary, these results suggest that IgG1 allotype may have a significant impact on IgG subclass distribution in response to vaccination and associated Fc-mediated effector functions. These results have important implications for ongoing HIV vaccine efficacy studies predicated on engagement of FcgammaR-mediated cellular functions including ADCC and ADCP, and warrant further investigation. Our novel allotyping protocol provides new tools to determine the potential impact of IgG1 allotypes on vaccine efficacy. PMID- 29326731 TI - Mapping and Identifying a Candidate Gene (Bnmfs) for Female-Male Sterility through Whole-Genome Resequencing and RNA-Seq in Rapeseed (Brassica napus L.). AB - In oilseed crops, carpel and stamen development play vital roles in pollination and rapeseed yield, but the genetic mechanisms underlying carpel and stamen development remain unclear. Herein, a male- and female-sterile mutant was obtained in offspring of a (Brassica napus cv. Qingyou 14) * (Qingyou 14 * B. rapa landrace Dahuang) cross. Subsequently, F2-F9 populations were generated through selfing of the heterozygote plants among the progeny of each generation. The male- and female-sterility exhibited stable inheritance in successive generations and was controlled by a recessive gene. The mutant kept the same chromosome number (2n = 38) as B. napus parent but showed abnormal meiosis for male and female. One candidate gene for the sterility was identified by simple sequence repeat (SSR) and insertion deletion length polymorphism (InDel) markers in F7-F9 plants, and whole-genome resequencing with F8 pools and RNA sequencing with F9 pools. Whole-genome resequencing found three candidate intervals (35.40 35.68, 35.74-35.75, and 45.34-46.45 Mb) on chromosome C3 in B. napus and candidate region for Bnmfs was narrowed to approximately 1.11-Mb (45.34-46.45 M) by combining SSR and InDel marker analyses with whole-genome resequencing. From transcriptome profiling in 0-2 mm buds, all of the genes in the candidate interval were detected, and only two genes with significant differences (BnaC03g56670D and BnaC03g56870D) were revealed. BnaC03g56870D was a candidate gene that shared homology with the CYP86C4 gene of Arabidopsis thaliana. Quantitative reverse transcription (qRT)-PCR analysis showed that Bnmfs primarily functioned in flower buds. Thus, sequencing and expression analyses provided evidence that BnaC03g56870D was the candidate gene for male and female sterility in the B. napus mutant. PMID- 29326730 TI - Cyclotide Evolution: Insights from the Analyses of Their Precursor Sequences, Structures and Distribution in Violets (Viola). AB - Cyclotides are a family of plant proteins that are characterized by a cyclic backbone and a knotted disulfide topology. Their cyclic cystine knot (CCK) motif makes them exceptionally resistant to thermal, chemical, and enzymatic degradation. By disrupting cell membranes, the cyclotides function as host defense peptides by exhibiting insecticidal, anthelmintic, antifouling, and molluscicidal activities. In this work, we provide the first insight into the evolution of this family of plant proteins by studying the Violaceae, in particular species of the genus Viola. We discovered 157 novel precursor sequences by the transcriptomic analysis of six Viola species: V. albida var. takahashii, V. mandshurica, V. orientalis, V. verecunda, V. acuminata, and V. canadensis. By combining these precursor sequences with the phylogenetic classification of Viola, we infer the distribution of cyclotides across 63% of the species in the genus (i.e., ~380 species). Using full precursor sequences from transcriptomes, we show an evolutionary link to the structural diversity of the cyclotides, and further classify the cyclotides by sequence signatures from the non-cyclotide domain. Also, transcriptomes were compared to cyclotide expression on a peptide level determined using liquid chromatography-mass spectrometry. Furthermore, the novel cyclotides discovered were associated with the emergence of new biological functions. PMID- 29326733 TI - iTRAQ-Based Comparative Proteomic Analysis of Seedling Leaves of Two Upland Cotton Genotypes Differing in Salt Tolerance. AB - Cotton yields are greatly reduced under high salinity stress conditions, although cotton is considered a moderately salt-tolerant crop. Understanding at the molecular level how cotton responds to salt stress will help in developing salt tolerant varieties. Here, we combined physiological analysis with isobaric tags for relative and absolute quantitation (iTRAQ)-based proteomics of seedling leaves of 2 genotypes differing in salinity tolerance to 200 mM (18.3 dS/m) NaCl stress. Salt stress produced significant stress symptoms in the sensitive genotype Nan Dan Ba Di Da Hua (N), including lower relative water and chlorophyll contents and higher relative electrolyte leakage and Na+/K+ ratio in leaf samples, compared with those in the tolerant genotype Earlistaple 7 (Z). A total of 58 differentially abundant salt-responsive proteins were identified. Asp-Glu Ala-Asp (DEAD)-box ATP-dependent RNA helicase 3 and protochlorophyllide reductase were markedly suppressed after salt treatment, whereas the phosphate-related differentially abundant proteins (DAPs) phosphoethanolamine N-methyltransferase 1 and 14-3-3-like protein E were induced, and all these proteins may play significant roles in salt stress. Twenty-nine salt-responsive proteins were also genotype specific, and 62.1 and 27.6% of these were related to chloroplast and defense responses, respectively. Based on the Arabidopsis thaliana protein interaction database, orthologs of 25 proteins showed interactions in Arabidopsis, and among these, a calmodulin protein was predicted to have 212 functional partners. In addition, the Golgi apparatus and calcium may be important for salt secretion in cotton. Through integrative proteome and transcriptome analysis, 16 DAPs were matched to differentially expressed genes and verified using qRT-PCR. On the basis of these findings, we proposed that some proteins related to chloroplast, ATP, ribosomal, and phosphate metabolism as well as to the Golgi apparatus and calcium may play key roles in the short-term salt stress response of cotton seedling leaves. PMID- 29326732 TI - Exogenous Glycine Nitrogen Enhances Accumulation of Glycosylated Flavonoids and Antioxidant Activity in Lettuce (Lactuca sativa L.). AB - Glycine, the simplest amino acid in nature and one of the most abundant free amino acids in soil, is regarded as a model nutrient in organic nitrogen studies. To date, many studies have focused on the uptake, metabolism and distribution of organic nitrogen in plants, but few have investigated the nutritional performance of plants supplied with organic nitrogen. Lettuce (Lactuca sativa L.), one of the most widely consumed leafy vegetables worldwide, is a significant source of antioxidants and bioactive compounds such as polyphenols, ascorbic acid and tocopherols. In this study, two lettuce cultivars, Shenxuan 1 and Lollo Rossa, were hydroponically cultured in media containing 4.5, 9, or 18 mM glycine or 9 mM nitrate (control) for 4 weeks, and the levels of health-promoting compounds and antioxidant activity of the lettuce leaf extracts were evaluated. Glycine significantly reduced fresh weight compared to control lettuce, while 9 mM glycine significantly increased fresh weight compared to 4.5 or 18 mM glycine. Compared to controls, glycine (18 mM for Shenxuan 1; 9 mM for Lollo Rossa) significantly increased the levels of most antioxidants (including total polyphenols, alpha-tocopherol) and antioxidant activity, suggesting appropriate glycine supply promotes antioxidant accumulation and activity. Glycine induced most glycosylated quercetin derivatives and luteolin derivatives detected and decreased some phenolic acids compared to nitrate treatment. This study indicates exogenous glycine supplementation could be used strategically to promote the accumulation of health-promoting compounds and antioxidant activity of hydroponically grown lettuce, which could potentially improve human nutrition. PMID- 29326734 TI - JUNGBRUNNEN1 Confers Drought Tolerance Downstream of the HD-Zip I Transcription Factor AtHB13. AB - Low water availability is the major environmental factor limiting growth and productivity of plants and crops and is therefore considered of high importance for agriculture affected by climate change. Identifying regulatory components controlling the response and tolerance to drought stress is thus of major importance. The NAC transcription factor (TF) JUNGBRUNNEN1 (JUB1) from Arabidopsis thaliana extends leaf longevity under non-stress growth conditions, lowers cellular hydrogen peroxide (H2O2) level, and enhances tolerance against heat stress and salinity. Here, we additionally find that JUB1 strongly increases tolerance to drought stress in Arabidopsis when expressed from both, a constitutive (CaMV 35S) and an abiotic stress-induced (RD29A) promoter. Employing a yeast one-hybrid screen we identified HD-Zip class I TF AtHB13 as an upstream regulator of JUB1. AtHB13 has previously been reported to act as a positive regulator of drought tolerance. AtHB13 and JUB1 thereby establish a joint drought stress control module. PMID- 29326735 TI - Discovery of Consistent QTLs of Wheat Spike-Related Traits under Nitrogen Treatment at Different Development Stages. AB - Spike-related traits such as spike length (Sl), fertile spikelet number (Fsn), sterile spikelet number (Ssn), grain number per spike (Gns), and thousand-kernel weight (Tkw) are important factors influencing wheat yield. However, reliably stable markers that can be used for molecular breeding in different environments have not yet been identified. In this study, a double haploid (DH) population was used for quantitative trait locus (QTL) mapping of five spike-related traits under four different nitrogen (N) supply dates in two locations and years. Seventy additive QTLs with phenotypic variation ranging from 4.12 to 34.74% and 10 major epistatic QTLs were identified. Eight important chromosomal regions on five chromosomes (1B, 2B, 2D, 5D, and 6A) were found. Sixteen stable QTLs were detected for which N application had little effect. Among those stable QTLs, QSl.sdau-2D-1, and QSl.sdau-2D-2, with phenotypic variation explained (PVE) of 10.4 and 24.2%, respectively, were flanked by markers Xwmc112 and Xcfd53 in the same order. The QTLs QSsn.sdau-2B-1, QFsn.sdau-2B-1, and QGns.sdau-2B, with PVE ranging from 4.37 to 28.43%, collocated in the Xwmc179-Xbarc373 marker interval. The consistent kernel wheat QTL (QTkw.sdau-6A) on the long arm of chromosome 6A, flanked by SSR markers Xbarc1055 and Xwmc553, showed PVE of 5.87-15.18%. Among these stable QTLs, the two flanking markers Xwmc112 and Xcfd53 have been validated using different varieties and populations for selecting Sl. Therefore, these results will be of great value for marker-assisted selection (MAS) in breeding programs and will accelerate the understanding of the genetic relationships among spike-related traits at the molecular level. PMID- 29326736 TI - Evolution of the Crop Rhizosphere: Impact of Domestication on Root Exudates in Tetraploid Wheat (Triticum turgidum L.). AB - Domestication has induced major genetic changes in crop plants to satisfy human needs and as a consequence of adaptation to agroecosystems. This adaptation might have affected root exudate composition, which can influence the interactions in the rhizosphere. Here, using two different soil types (sand, soil), we provide an original example of the impact of domestication and crop evolution on root exudate composition through metabolite profiling of root exudates for a panel of 10 wheat genotypes that correspond to the key steps in domestication of tetraploid wheat (wild emmer, emmer, durum wheat). Our data show that soil type can dramatically affect the composition of root exudates in the rhizosphere. Moreover, the composition of the rhizosphere metabolites is associated with differences among the genotypes of the wheat domestication groups, as seen by the high heritability of some of the metabolites. Overall, we show that domestication and breeding have had major effects on root exudates in the rhizosphere, which suggests the adaptive nature of these changes. PMID- 29326737 TI - Over-Expression of Arabidopsis EDT1 Gene Confers Drought Tolerance in Alfalfa (Medicago sativa L.). AB - Alfalfa (Medicago sativa L.) is an important legume forage crop with great economic value. However, as the growth of alfalfa is seriously affected by an inadequate supply of water, drought is probably the major abiotic environmental factor that most severely affects alfalfa production worldwide. In an effort to enhance alfalfa drought tolerance, we transformed the Arabidopsis Enhanced Drought Tolerance 1 (AtEDT1) gene into alfalfa via Agrobacterium-mediated transformation. Compared with wild type plants, drought stress treatment resulted in higher survival rates and biomass, but reduced water loss rates in the transgenic plants. Furthermore, transgenic alfalfa plants had increased stomatal size, but reduced stomatal density, and these stomatal changes contributed greatly to reduced water loss from leaves. Importantly, transgenic alfalfa plants exhibited larger root systems with larger root lengths, root weight, and root diameters than wild type plants. The transgenic alfalfa plants had reduced membrane permeability and malondialdehyde content, but higher soluble sugar and proline content, higher superoxide dismutase activity, higher chlorophyll content, enhanced expression of drought-responsive genes, as compared with wild type plants. Notably, transgenic alfalfa plants grew better in a 2-year field trial and showed enhanced growth performance with increased biomass yield. All of our morphological, physiological, and molecular analyses demonstrated that the ectopic expression of AtEDT1 improved growth and enhanced drought tolerance in alfalfa. Our study provides alfalfa germplasm for use in forage improvement programs, and may help to increase alfalfa production in arid lands. PMID- 29326738 TI - Editorial: Evolution of Gene Regulatory Networks in Plant Development. PMID- 29326739 TI - Tomato Reproductive Success Is Equally Affected by Herbivores That Induce or That Suppress Defenses. AB - Herbivory induces plant defenses. These responses are often costly, yet enable plants under attack to reach a higher fitness than they would have reached without these defenses. Spider mites (Tetranychus ssp.) are polyphagous plant pests. While most strains of the species Tetranychus urticae induce defenses at the expense of their performance, the species Tetranychus evansi suppresses plant defenses and thereby maintains a high performance. Most data indicate that suppression is a mite-adaptive trait. Suppression is characterized by a massive down-regulation of plant gene-expression compared to plants infested with defense inducing mites as well as compared to control plants, albeit to a lesser extent. Therefore, we hypothesized that suppression may also benefit a plant since the resources saved during down-regulation could be used to increase reproduction. To test this hypothesis, we compared fruit and viable seed production of uninfested tomato plants with that of plants infested with defense-inducing or defense suppressing mites. Mite-infested plants produced fruits faster than control plants albeit in lower total amounts. The T. evansi-infested plants produced the lowest number of fruits. However, the number of viable seeds was equal across treatments at the end of the experiment. Nonetheless, at this stage control plants were still alive and productive and therefore reach a higher lifetime fitness than mite-infested plants. Our results indicate that plants have plastic control over reproduction and can speed up fruit- and seed production when conditions are unfavorable. Moreover, we showed that although suppressed plants are less productive in terms of fruit production than induced plants, their lifetime fitness was equal under laboratory conditions. However, under natural conditions the fitness of plants such as tomato will also depend on the efficiency of seed dispersal by animals. Hence, we argue that the fitness of induced plants in the field may be promoted more by their higher fruit production relative to that of their suppressed counterparts. PMID- 29326740 TI - Engineered Dwarf Male-Sterile Rice: A Promising Genetic Tool for Facilitating Recurrent Selection in Rice. AB - Rice is a crop feeding half of the world's population. With the continuous raise of yield potential via genetic improvement, rice breeding has entered an era where multiple genes conferring complex traits must be efficiently manipulated to increase rice yield further. Recurrent selection is a sound strategy for manipulating multiple genes and it has been successfully performed in allogamous crops. However, the difficulties in emasculation and hand pollination had obstructed efficient use of recurrent selection in autogamous rice. Here, we report development of the dwarf male-sterile rice that can facilitate recurrent selection in rice breeding. We adopted RNAi technology to synergistically regulate rice plant height and male fertility to create the dwarf male-sterile rice. The RNAi construct pTCK-EGGE, targeting the OsGA20ox2 and OsEAT1 genes, was constructed and used to transform rice via Agrobacterium-mediated transformation. The transgenic T0 plants showing largely reduced plant height and complete male sterile phenotypes were designated as the dwarf male-sterile plants. Progenies of the dwarf male-sterile plants were obtained by pollinating them with pollens from the wild-type. In the T1 and T2 populations, half of the plants were still dwarf male-sterile; the other half displayed normal plant height and male fertility which were designated as tall and male-fertile plants. The tall and male-fertile plants are transgene-free and can be self-pollinated to generate new varieties. Since emasculation and hand pollination for dwarf male-sterile rice plants is no longer needed, the dwarf male-sterile rice can be used to perform recurrent selection in rice. A dwarf male-sterile rice-based recurrent selection model has been proposed. PMID- 29326742 TI - Perception of Salicylic Acid in Physcomitrella patens. AB - Salicylic acid (SA) is a key signaling molecule in plant immunity. Two types of SA receptors, NPR1 and NPR3/NPR4, were reported to be involved in the perception of SA in Arabidopsis. SA is also synthesized in the non-vascular moss Physcomitrella patens following pathogen infection. Sequence analysis revealed that there is only one NPR1/NPR3/NPR4-like protein in P. patens. This agrees with the phylogenetic study that showed the divergence of NPR1 and NPR3/NPR4 from the same ancestor during the evolution of higher plants. Intriguingly, expression of the P. patens NPR1/NPR3/NPR4-like gene in Arabidopsis does not complement the constitutive defense phenotype of the npr3 npr4 double mutant, but can partially rescue the mutant phenotypes of npr1-1, suggesting that it functions as an NPR1 like positive regulator of SA-mediated immunity and P. patens does not have an SA receptor functioning similarly as NPR3/NPR4. Future characterization of the P. patens NPR1-like protein and analysis of its functions through knockout and biochemical approaches will help us better understand how SA is perceived and what its functions are in P. patens. PMID- 29326741 TI - Two Lysin-Motif Receptor Kinases, Gh-LYK1 and Gh-LYK2, Contribute to Resistance against Verticillium wilt in Upland Cotton. AB - Lysin-motif (LysM) receptor kinases (LYKs) play essential roles in recognition of chitin and activation of defense responses against pathogenic fungi in the model plants Arabidopsis and rice. The function of LYKs in non-model plants, however, remains elusive. In the present work, we found that the transcription of two LYK encoding genes from cotton, Gh-LYK1 and Gh-LYK2, was induced after Verticillium dahliae infection. Virus-induced gene silencing (VIGS) of Gh-LYK1 and Gh-LYK2 in cotton plants compromises resistance to V. dahliae. As putative pattern recognition receptors (PRRs), both Gh-LYK1 and Gh-LYK2 are membrane-localized, and all three LysM domains of Gh-LYK1 and Gh-LYK2 are required for their chitin binding ability. However, since Gh-LYK2, but not Gh-LYK1, is a pseudo-kinase and, on the other hand, the ectodomain (ED) of Gh-LYK2 can induce reactive oxygen species (ROS) burst in planta, Gh-LYK2 and Gh-LYK1 may contribute differently to cotton defense. Taken together, our results establish that both Gh-LYK1 and Gh LYK12 are required for defense against V. dahliae in cotton, possibly through different mechanisms. PMID- 29326744 TI - Physiological Plasticity Is Important for Maintaining Sugarcane Growth under Water Deficit. AB - The water availability at early phenological stages is critical for crop establishment and sugarcane varieties show differential performance under drought. Herein, we evaluated the relative importance of morphological and physiological plasticity of young sugarcane plants grown under water deficit, testing the hypothesis that high phenotypic plasticity is associated with drought tolerance. IACSP95-5000 is a high yielding genotype and IACSP94-2094 has good performance under water limiting environments. Plants were grown in rhizotrons for 35 days under three water availabilities: high (soil water matric potential [Psim] higher than -20 kPa); intermediate (Psim reached -65 and -90 kPa at the end of experimental period) and low (Psim reached values lower than -150 kPa). Our data revealed that morphological and physiological responses of sugarcane to drought are dependent on genotype and intensity of water deficit. In general, IACSP95-5000 showed higher physiological plasticity given by leaf gas exchange and photochemical traits, whereas IACSP94-2094 showed higher morphological plasticity determined by changes in leaf area (LA) and specific LA. As IACSP94 2094 accumulated less biomass than IACSP95-5000 under varying water availability, it is suggested that high morphological plasticity does not always represent an effective advantage to maintain plant growth under water deficit. In addition, our results revealed that sugarcane varieties face water deficit using distinct strategies based on physiological or morphological changes. When the effectiveness of those changes in maintaining plant growth under low water availability is taken into account, our results indicate that the physiological plasticity is more important than the morphological one in young sugarcane plants. PMID- 29326743 TI - Plant Responses to Abiotic Stress Regulated by Histone Deacetylases. AB - In eukaryotic cells, histone acetylation and deacetylation play an important role in the regulation of gene expression. Histone acetylation levels are modulated by histone acetyltransferases and histone deacetylases (HDACs). Recent studies indicate that HDACs play essential roles in the regulation of gene expression in plant response to environmental stress. In this review, we discussed the recent advance regarding the plant HDACs and their functions in the regulation of abiotic stress responses. The role of HDACs in autophagy was also discussed. PMID- 29326746 TI - Stoichiometric Correlation Analysis: Principles of Metabolic Functionality from Metabolomics Data. AB - Recent advances in metabolomics technologies have resulted in high-quality (time resolved) metabolic profiles with an increasing coverage of metabolic pathways. These data profiles represent read-outs from often non-linear dynamics of metabolic networks. Yet, metabolic profiles have largely been explored with regression-based approaches that only capture linear relationships, rendering it difficult to determine the extent to which the data reflect the underlying reaction rates and their couplings. Here we propose an approach termed Stoichiometric Correlation Analysis (SCA) based on correlation between positive linear combinations of log-transformed metabolic profiles. The log-transformation is due to the evidence that metabolic networks can be modeled by mass action law and kinetics derived from it. Unlike the existing approaches which establish a relation between pairs of metabolites, SCA facilitates the discovery of higher order dependence between more than two metabolites. By using a paradigmatic model of the tricarboxylic acid cycle we show that the higher-order dependence reflects the coupling of concentration of reactant complexes, capturing the subtle difference between the employed enzyme kinetics. Using time-resolved metabolic profiles from Arabidopsis thaliana and Escherichia coli, we show that SCA can be used to quantify the difference in coupling of reactant complexes, and hence, reaction rates, underlying the stringent response in these model organisms. By using SCA with data from natural variation of wild and domesticated wheat and tomato accession, we demonstrate that the domestication is accompanied by loss of such couplings, in these species. Therefore, application of SCA to metabolomics data from natural variation in wild and domesticated populations provides a mechanistic way to understanding domestication and its relation to metabolic networks. PMID- 29326747 TI - Deletion of CGLD1 Impairs PSII and Increases Singlet Oxygen Tolerance of Green Alga Chlamydomonas reinhardtii. AB - The green alga Chlamydomonas reinhardtii is a key model organism for studying photosynthesis and oxidative stress in unicellular eukaryotes. Using a forward genetics approach, we have identified and characterized a mutant x32, which lacks a predicted protein named CGLD1 (Conserved in Green Lineage and Diatom 1) in GreenCut2, under normal and stress conditions. We show that loss of CGLD1 resulted in minimal photoautotrophic growth and PSII activity in the organism. We observed reduced amount of PSII complex and core subunits in the x32 mutant based on blue-native (BN)/PAGE and immunoblot analysis. Moreover, x32 exhibited increased sensitivity to high-light stress and altered tolerance to different reactive oxygenic species (ROS) stress treatments, i.e., decreased resistance to H2O2/or tert-Butyl hydroperoxide (t-BOOH) and increased tolerance to neutral red (NR) and rose bengal (RB) that induce the formation of singlet oxygen, respectively. Further analysis via quantitative real-time PCR (qRT-PCR) indicated that the increased singlet-oxygen tolerance of x32 was largely correlated with up regulated gene expression of glutathione-S-transferases (GST). The phenotypical and physiological implications revealed from our experiments highlight the important roles of CGLD1 in maintaining structure and function of PSII as well as in protection of Chlamydomonas under photo-oxidative stress conditions. PMID- 29326745 TI - Brassinosteroids: A Promising Option in Deciphering Remedial Strategies for Abiotic Stress Tolerance in Rice. AB - Rice is an important staple crop as it feeds about a half of the earth's population. It is known to be sensitive to a range of abiotic stresses which result in significant decline in crop productivity. Recently, the use of phytohormones for abiotic stress amelioration has generated considerable interest. Plants adapt to various environmental stresses by undergoing series of changes at physiological and molecular levels which are cooperatively modulated by various phytohormones. Brassinosteroids (BRs) are a class of naturally occurring steroidal phytohormones, best known for their role in plant growth and development. For the past two decades, greater emphasis on studies related to BRs biosynthesis, distribution and signaling has resulted in better understanding of BRs function. Recent advances in the use of contemporary genetic, biochemical and proteomic tools, with a vast array of accessible biological resources has led to an extensive exploration of the key regulatory components in BR signaling networks, thus making it one of the most well-studied hormonal pathways in plants. The present review highlights the advancements of knowledge in BR research and links it with its growing potential in abiotic stress management for important crop like rice. PMID- 29326749 TI - Introgression of the Aegilops speltoides Su1-Ph1 Suppressor into Wheat. AB - Meiotic pairing between homoeologous chromosomes in polyploid wheat is inhibited by the Ph1 locus on the long arm of chromosome 5 in the B genome. Aegilops speltoides (genomes SS), the closest relative of the progenitor of the wheat B genome, is polymorphic for genetic suppression of Ph1. Using this polymorphism, two major suppressor loci, Su1-Ph1 and Su2-Ph1, have been mapped in Ae. speltoides. Su1-Ph1 is located in the distal, high-recombination region of the long arm of the Ae. speltoides chromosome 3S. Its location and tight linkage to marker Xpsr1205-3S makes Su1-Ph1 a suitable target for introgression into wheat. Here, Xpsr1205-3S was introgressed into hexaploid bread wheat cv. Chinese Spring (CS) and from there into tetraploid durum wheat cv. Langdon (LDN). Sequential fluorescence in situ hybridization and genomic in situ hybridization showed that an Ae. speltoides segment with Xpsr1205-3S replaced the distal end of the long arm of chromosome 3A. In the CS genetic background, the chromosome induced homoeologous chromosome pairing in interspecific hybrids with Ae. peregrina but not in progenies from crosses involving alien disomic substitution lines. In the LDN genetic background, the chromosome induced homoeologous chromosome pairing in both interspecific hybrids and progenies from crosses involving alien disomic substitution lines. We conclude that the recombined chromosome harbors Su1-Ph1 but its expression requires expression of complementary gene that is present in LDN but absent in CS. We suggest that it is unlikely that Su1-Ph1 and ZIP4-1, a paralog of Ph1 located on wheat chromosomes 3A and 3B and Ae. tauschii chromosome 3D, are equivalent. The utility of Su1-Ph1 for induction of recombination between homoeologous chromosomes in wheat is illustrated. PMID- 29326748 TI - Pseudomonas syringae pv. actinidiae Type III Effectors Localized at Multiple Cellular Compartments Activate or Suppress Innate Immune Responses in Nicotiana benthamiana. AB - Bacterial phytopathogen type III secreted (T3S) effectors have been strongly implicated in altering the interaction of pathogens with host plants. Therefore, it is useful to characterize the whole effector repertoire of a pathogen to understand the interplay of effectors in plants. Pseudomonas syringae pv. actinidiae is a causal agent of kiwifruit canker disease. In this study, we generated an Agrobacterium-mediated transient expression library of YFP-tagged T3S effectors from two strains of Psa, Psa-NZ V13 and Psa-NZ LV5, in order to gain insight into their mode of action in Nicotiana tabacum and N. benthamiana. Determining the subcellular localization of effectors gives an indication of the possible host targets of effectors. A confocal microscopy assay detecting YFP tagged Psa effectors revealed that the nucleus, cytoplasm and cell periphery are major targets of Psa effectors. Agrobacterium-mediated transient expression of multiple Psa effectors induced HR-like cell death (HCD) in Nicotiana spp., suggesting that multiple Psa effectors may be recognized by Nicotiana spp.. Virus induced gene silencing (VIGS) of several known plant immune regulators, EDS1, NDR1, or SGT1 specified the requirement of SGT1 in HCD induced by several Psa effectors in N. benthamiana. In addition, the suppression activity of Psa effectors on HCD-inducing proteins and PTI was assessed. Psa effectors showed differential suppression activities on each HCD inducer or PTI. Taken together, our Psa effector repertoire analysis highlights the great diversity of T3S effector functions in planta. PMID- 29326750 TI - Integrative View of the Diversity and Evolution of SWEET and SemiSWEET Sugar Transporters. AB - Sugars Will Eventually be Exported Transporter (SWEET) and SemiSWEET are recently characterized families of sugar transporters in eukaryotes and prokaryotes, respectively. SemiSWEETs contain 3 transmembrane helices (TMHs), while SWEETs contain 7. Here, we performed sequence-based comprehensive analyses for SWEETs and SemiSWEETs across the biosphere. In total, 3,249 proteins were identified and ~60% proteins were found in green plants and Oomycota, which include a number of important plant pathogens. Protein sequence similarity networks indicate that proteins from different organisms are significantly clustered. Of note, SemiSWEETs with 3 or 4 TMHs that may fuse to SWEET were identified in plant genomes. 7-TMH SWEETs were found in bacteria, implying that SemiSWEET can be fused directly in prokaryote. 15-TMH extraSWEET and 25-TMH superSWEET were also observed in wild rice and oomycetes, respectively. The transporters can be classified into 4, 2, 2, and 2 clades in plants, Metazoa, unicellular eukaryotes, and prokaryotes, respectively. The consensus and coevolution of amino acids in SWEETs were identified by multiple sequence alignments. The functions of the highly conserved residues were analyzed by molecular dynamics analysis. The 19 most highly conserved residues in the SWEETs were further confirmed by point mutagenesis using SWEET1 from Arabidopsis thaliana. The results proved that the conserved residues located in the extrafacial gate (Y57, G58, G131, and P191), the substrate binding pocket (N73, N192, and W176), and the intrafacial gate (P43, Y83, F87, P145, M161, P162, and Q202) play important roles for substrate recognition and transport processes. Taken together, our analyses provide a foundation for understanding the diversity, classification, and evolution of SWEETs and SemiSWEETs using large-scale sequence analysis and further show that gene duplication and gene fusion are important factors driving the evolution of SWEETs. PMID- 29326751 TI - The Role for the Small Cryptic Plasmids As Moldable Vectors for Genetic Innovation in Aeromonas salmonicida subsp. salmonicida. AB - In Aeromonas salmonicida subsp. salmonicida, a bacterium that causes fish disease, there are two types of small plasmids (<15 kbp): plasmids without known function, called cryptic plasmids, and plasmids that bear beneficial genes for the bacterium. Four among them are frequently detected in strains of A. salmonicida subsp. salmonicida: pAsa1, pAsa2, pAsa3, and pAsal1. The latter harbors a gene which codes for an effector of the type three secretion system, while the three others are cryptic. It is currently unclear why these cryptic plasmids are so highly conserved throughout strains of A. salmonicida subsp. salmonicida. In this study, three small plasmids, named pAsa10, pAsaXI and pAsaXII, are described. Linked to tetracycline resistance, a partial Tn1721 occupies half of pAsa10. A whole Tn1721 is also present in pAsa8, another plasmid previously described in A. salmonicida subsp. salmonicida. The backbone of pAsa10 has no relation with other plasmids described in this bacterium. However, the pAsaXI and pAsaXII plasmids are derivatives of cryptic plasmids pAsa3 and pAsa2, respectively. pAsaXI is identical to pAsa3, but bears a transposon with a gene that encodes for a putative virulence factor. pAsaXII, also found in Aeromonas bivalvium, has a 95% nucleotide identity with the backbone of pAsa2. Like pAsa7, another pAsa2-like plasmid recently described, orf2 and orf3 are missing and are replaced in pAsaXII by genes that encode a formaldehyde detoxification system. These new observations suggest that transposons and particularly Tn1721 are frequent and diversified in A. salmonicida subsp. salmonicida. Moreover, the discovery of pAsaXI and pAsaXII expands the group of small plasmids that are derived from cryptic plasmids and have a function. Although their precise roles remain to be determined, the present study shows that cryptic plasmids could serve as moldable vectors to acquire mobile elements such as transposons. Consequently, they could act as key agents of the diversification of virulence and adaptive traits of Aeromonas salmonicida subsp. salmonicida. PMID- 29326754 TI - Climate-Induced Landslides within the Larch Dominant Permafrost Zone of Central Siberia. AB - Climate impact on landslide occurrence and spatial patterns were analyzed within the larch-dominant communities associated with continuous permafrost areas of Central Siberia. We used high resolution satellite imagery (i.e. QuickBird, WorldView) to identify landslide scars over an area of 62000 km2. Landslide occurrence was analyzed with respect to climate variables (air temperature, precipitation, drought index SPEI), and GRACE satellite derived equivalent of water thickness anomalies (EWTA). Landslides were found only on southward facing slopes, and the occurrence of landslides increased exponentially with increasing slope steepness. Lengths of landslides correlated positively with slope steepness. The observed upper elevation limit of landslides tended to coincide with the tree line. Observations revealed landslides occurrence was also found to be strongly correlated with August precipitation (r = 0.81) and drought index (r = 0.7), with June-July-August soil water anomalies (i.e., EWTA, r = 0.68-0.7), and number of thawing days (i.e., a number of days with tmax > 0 degrees C; r = 0.67). A significant increase in the variance of soil water anomalies was observed, indicating that occurrence of landslides may increase even with a stable mean precipitation level. The key-findings of this study are (1) landslides occurrence increased within the permafrost zone of Central Siberia in the beginning of the 21st century; (2) the main cause of increased landslides occurrence are extremes in precipitation and soil water anomalies; and (3) landslides occurrence are strongly dependent on relief features such as southward facing steep slopes. PMID- 29326753 TI - A Novel Role for CSRP1 in a Lebanese Family with Congenital Cardiac Defects. AB - Despite an obvious role for consanguinity in congenital heart disease (CHD), most studies fail to document a monogenic model of inheritance except for few cases. We hereby describe a first-degree cousins consanguineous Lebanese family with 7 conceived children: 2 died in utero of unknown causes, 3 have CHD, and 4 have polydactyly. The aim of the study is to unveil the genetic variant(s) causing these phenotypes using next generation sequencing (NGS) technology. Targeted exome sequencing identified a heterozygous duplication in CSRP1 which leads to a potential frameshift mutation at position 154 of the protein. This mutation is inherited from the father, and segregates only with the CHD phenotype. The in vitro characterization demonstrates that the mutation dramatically abrogates its transcriptional activity over cardiac promoters like NPPA. In addition, it differentially inhibits the physical association of CSRP1 with SRF, GATA4, and with the newly described partner herein TBX5. Whole exome sequencing failed to show any potential variant linked to polydactyly, but revealed a novel missense mutation in TRPS1. This mutation is inherited from the healthy mother, and segregating only with the cardiac phenotype. Both TRPS1 and CSRP1 physically interact, and the mutations in each abrogate their partnership. Our findings add fundamental knowledge into the molecular basis of CHD, and propose the di-genic model of inheritance as responsible for such malformations. PMID- 29326752 TI - The Dynamics of microRNA Transcriptome in Bovine Corpus Luteum during Its Formation, Function, and Regression. AB - The formation, function, and subsequent regression of the ovarian corpus luteum (CL) are dynamic processes that enable ovary cyclical activity. Studies in whole ovary tissue have found microRNAs (miRNAs) to by critical for ovary function. However, relatively little is known about the role of miRNAs in the bovine CL. Utilizing small RNA next-generation sequencing we profiled miRNA transcriptome in bovine CL during the entire physiological estrous cycle, by sampling the CL on days: d 1-2, d 3-4, and d 5-7 (early CL, eCL), d 8-12 (mid CL, mCL), d 13-16 (late CL, lCL), and d > 18 (regressed CL, rCL). We characterized patterns of miRNAs abundance and identified 42 miRNAs that were consistent significantly different expressed (DE) in the eCL relative to their expression at each of the analyzed stages (mCL, lCL, and rCL). Out of these, bta-miR-210-3p, -2898, -96, -7 5p, -183-5p, -182, and -202 showed drastic up-regulation with a fold-change of >=2.0 and adjusted P < 0.01 in the eCL, while bta-miR-146a was downregulated at lCL and rCL vs. the eCL. Another 24, 11, and 21 miRNAs were significantly DE only between individual comparisons, eCL vs. the mCL, lCL, and rCL, respectively. Irrespective of cycle stage two miRNAs, bta-miR-21-5p and bta-miR-143 were identified as the most abundant miRNAs species and show opposing expression abundance. Whilst bta-miR-21-5p peaked in number of reads in the eCL and was significantly downregulated in the mCL and lCL, bta-miR-143 reached its peak in the rCL and is significantly downregulated in the eCL. MiRNAs with significant DE in at least one cycle stage (CL class) were further grouped into eight distinct clusters by the self-organizing tree algorithm (SOTA). Half of the clusters contain miRNAs with low-expression, whilst the other half contain miRNAs with high-expression levels during eCL. Prediction analysis for significantly DE miRNAs resulted in target genes involved with CL formation, functionalization and CL regression. This study is the most comprehensive profiling of miRNA transcriptome in bovine CL covering the entire estrous cycle and provides a compact database for further functional validation and biomarker identification relevant for CL viability and fertility. PMID- 29326755 TI - Effects of Noncovalent Interactions on the Catalytic Activity of Unsupported Colloidal Palladium Nanoparticles Stabilized with Thiolate Ligands. AB - This article presents the systematic evaluation of colloidal palladium nanoparticles functionalized with well-defined small organic ligands that provide spatial control of the geometric and electronic surface properties of nanoparticle catalysts. Palladium nanoparticles stabilized with thiolate ligands of different structures and functionalities (linear alkyl vs cyclohexyl vs phenyl) are synthesized using the thiosulfate protocol in a two-phase system. The structure and composition of palladium nanoparticles are characterized using transmission electron microscopy, thermogravimetric analysis, NMR, and UV-vis spectroscopies. The catalysis studies show that the chemical and structural compositions of monolayers surrounding the nanoparticle core greatly influence the overall activity and selectivity of colloidal palladium nanoparticle catalysts for the hydrogenation, isomerization, and hydrogenolysis of allylic alcohols. Especially, noncovalent interactions between surface phenyl ligands and incoming aromatic substrates are found to have a profound influence on the selectivity of colloidal palladium nanoparticles. PMID- 29326756 TI - Mismatch Between Homeless Families and the Homelessness Service System. AB - The enrollment phase of the Family Options Study provides information about the mismatch of the homeless service system and the needs and desires of families experiencing homelessness in 12 communities. One-fourth (25.8 percent) of the 2,490 families screened for the study after shelter stays of a week were deemed ineligible for one or more of the interventions at initial screening, with ineligibility highest for those screened for transitional housing programs (28.9 percent) and lower for short- and long-term rental subsidies (9.2 and 4.1 percent). Families given priority offers of housing and service interventions for which they appeared eligible faced additional screening by programs and made decisions about whether to enroll. Considering all stages of this process, families were least likely to be eligible for and subsequently choose to enroll (within 9 months) in transitional housing programs (32.5 percent of those initially screened) and most likely to be eligible for and subsequently lease up with long-term subsidies (73.4 percent) with short-term subsidies in between (51.0 percent). Homeless system interventions systematically screen out families with housing and employment barriers, despite the presumption that these families are the families who need interventions in order to achieve housing and economic stability. PMID- 29326757 TI - Risk Models for Returns to Housing Instability Among Families Experiencing Homelessness. AB - This study developed risk models for returns to housing instability (that is, homelessness and unstable doubling-up situations) among families exiting emergency shelter. Participants included 446 families randomly assigned to receive priority offers of long-term housing subsidies and 578 families randomly assigned to usual care in the Family Options Study, a multisite experiment designed to test the impact of various housing and service interventions for homeless families. Relationships between family features recorded at shelter entry and returns to housing instability 20 months later were examined empirically. Correlation, hierarchical logistic regression, and receiver operating characteristic curves were used to combine family features into predictive risk models. Results indicated that few observable family features beyond previous housing instability offered predictive utility. Access to long term housing subsidies appears to reduce housing instability. Further research should examine whether disability benefits, reliable employment, or effective substance dependence treatment reduce housing instability. PMID- 29326758 TI - Families' Experiences of Doubling Up After Homelessness. AB - This study examined experiences of doubling up among families after episodes of homelessness. Doubling up refers to two or more adults or families residing in the same housing unit, which has been an increasing trend in the United States in recent decades. Within the past 14 years, the number of households containing more than one family, related or unrelated, has more than tripled. Although doubling up is increasingly common among families at all income levels, this study seeks to understand the experiences of doubling up among families who have been homeless. Through qualitative interviews with caregivers of 29 families, we analyzed advantages and disadvantages of doubling up with the caregiver's parent, other family, and nonfamily. Experiences were rated on a four-point scale-(1) mostly negative, (2) negative mixed, (3) positive mixed, and (4) mostly positive and coded for various positive and negative themes. Overall, we found that doubling up was a generally negative experience for families in our sample, regardless of their relationship to their hosts. Common themes included negative effects on children, undesirable environments, interpersonal tension, and feelings of impermanence and instability. For formerly sheltered families in this study, doubling up after shelter did not resolve their period of housing instability and may be only another stop in an ongoing cycle of homelessness. PMID- 29326760 TI - Both-Bone Forearm Fractures in Children with Minimum Four Years of Growth Remaining: Can Cast Achieve a Good Outcome at Skeletal Maturity? AB - Introduction: Both-bone forearm fractures in children can be treated non operatively with a cast. Most previous studies have shown favourable outcome; however, information on the functional outcome after skeletal maturity is still scanty. Therefore, this study was conducted to determine the functional outcome after skeletal maturity in fractures with at least four years of growth remaining. Materials and Methods: This retrospective study was conducted from March 2012 until March 2013. Age at the time of fracture was taken as until 10 years for females and until 12 years old for males with at least four years of growth remaining. Fractures occurring in the diaphysis were included in the study. Functional outcomes were assessed at or after skeletal maturity. Results: Forty-four children fulfilled the criteria. The ages of the youngest and the oldest at the time of fracture was five and 12 years old respectively. Follow-up of the male and female patients were 7.4 years and 5.5 years respectively. There was a significant difference between post-reduction angulation and angulation at skeletal maturity of the radius and ulna (p<0.001). Out of 44 patients, 39 had excellent and five had good functional outcomes. No patient had fair or poor functional outcome. There was no association between the functional outcome and the angulation of forearm bones after skeletal maturity. Age at the time of fracture had a significant association with the functional outcome. Conclusion: Non-operative treatment of both-bone diaphyseal forearm fractures in a cast has good to excellent functional outcomes in children who still have four years of growth remaining. PMID- 29326761 TI - Prevalence Rate of Adolescent Idiopathic Scoliosis: Results of School-based Screening in Surabaya, Indonesia. AB - Introduction: Scoliosis is a lateral spinal deformity of 10 degrees or more, resulting in a C-shaped or S-shaped curve of the spine. Information about adolescent idiopathic scoliosis (AIS) prevalence rate is important not only for paediatric health care planning strategy but also for parent's awareness. This study aims to find the suitable inclination cut-off angle and the prevalence rate of AIS in Surabaya, Indonesia. Materials and Methods: This is a descriptive cross sectional study conducted in 2010. We performed stratified random sampling of 784 Elementary and Junior High School students in Surabaya between 9-16 years of age. Scoliosis screening was performed by the Adam's forward bending test (FBT). The students with positive FBT were measured for the inclination angle with scoliometer, and then subjected to radiologic examination. Prevalence rate, gender ratio, and the cut-off point value of inclination angle were determined by a descriptive statistics analysis. Results: Adam's forward bending test was positive in 50 students (6,37%). Among them, 23 students (2,93%) four males and 19 females had Cobb angle of >=10 degrees . The 5 degrees cutoff point value of inclination angle had a 95.6% sensitivity, an 18.5% specificity, a 50% positive predictive value (PPV), and a 83.33% negative predictive value (NPV); while the 7 degrees cut-off point had a 78.26% sensitivity, a 88.88% specificity, a 85.7% PPV, and a 82.7% NPV. Conclusion: The prevalence rate of AIS in Surabaya is 2.93% and the 7 degrees cut-off point of inclination angle is suitable for school based screening. PMID- 29326759 TI - Exercise Inhibits the Effects of Smoke-Induced COPD Involving Modulation of STAT3. AB - Purpose: Evaluate the participation of STAT3 in the effects of aerobic exercise (AE) in a model of smoke-induced COPD. Methods: C57Bl/6 male mice were divided into control, Exe, COPD, and COPD+Exe groups. Smoke were administered during 90 days. Treadmill aerobic training begun on day 61 until day 90. Pulmonary inflammation, systemic inflammation, the level of lung emphysema, and the airway remodeling were evaluated. Analysis of integral and phosphorylated expression of STAT3 by airway epithelial cells, peribronchial leukocytes, and parenchymal leukocytes was performed. Results: AE inhibited smoke-induced accumulation of total cells (p < 0.001), lymphocytes (p < 0.001), and neutrophils (p < 0.001) in BAL, as well as BAL levels of IL-1beta (p < 0.001), CXCL1 (p < 0.001), IL-17 (p < 0.001), and TNF-alpha (p < 0.05), while increased the levels of IL-10 (p < 0.001). AE also inhibited smoke-induced increases in total leukocytes (p < 0.001), neutrophils (p < 0.05), lymphocytes (p < 0.001), and monocytes (p < 0.01) in blood, as well as serum levels of IL-1beta (p < 0.01), CXCL1 (p < 0.01), IL-17 (p < 0.05), and TNF-alpha (p < 0.01), while increased the levels of IL-10 (p < 0.001). AE reduced smoke-induced emphysema (p < 0.001) and collagen fiber accumulation in the airways (p < 0.001). AE reduced smoke-induced STAT3 and phospho-STAT3 expression in airway epithelial cells (p < 0.001), peribronchial leukocytes (p < 0.001), and parenchymal leukocytes (p < 0.001). Conclusions: AE reduces smoke-induced COPD phenotype involving STAT3. PMID- 29326762 TI - Outcome Determinants of Patients with Traumatic Pelvic Fractures: A Cohort Study in a Level I Trauma Center in Southern Iran. AB - Pelvic fracture is a result of devastating injuries and is usually encountered in conjunction with other life-threatening injuries. The aim of the current study was to determine the outcome determinants of patients with pelvic fractures referred to a large trauma center in southern Iran. This retrospective cross sectional study was conducted in a level I trauma center over a period of three years from 2012 to 2015. We included all patients with pelvic fractures whose medical records had sufficient data. Data were compared between good condition and poor conditions. A total of 327 patients with mean age of 40.1 +/- 19.7 years were included. Poor condition was defined as being associated with higher heart rate (p=0.002), lower systolic blood pressure (p<0.001), lower diastolic blood pressure (p=0.002) lower Glasgow Coma Scale (GCS) on admission (p<0.001) and higher Injury Severity Score (ISS) (p<0.001). Those with poor conditions had significantly higher admission to ICU (p<0.001), higher rate of surgical interventions (p<0.001) and higher mortality (p<0.001). The hospital length of stay (p<0.001) and ICU length of stay (p=0.025) were also longer in those with poor condition. Lower hemoglobin, lower pH, higher heart rate, lower systolic blood pressure, lower GCS on admission and higher ISS were important outcome determinants of traumatic pelvic fractures. PMID- 29326763 TI - Incidence of Varus Malalignment Post Interlocking Nail in Proximal Femur Shaft Fractures Comparing Two Types of Entry Points. AB - Introduction: Osteosynthesis of the femur using an interlocking nail is the gold standard for treating diaphyseal fractures of the femur. There are two established entry points for the antegrade interlocking nails which is the piriformis fossa or the greater trochanter. It has been reported that varus malalignment was frequently seen in proximal femur fracture which were treated with interlocking nail utilizing the greater trochanter entry point. The study was done to find out if the problem was of significance. Materials and Methods: This was a retrospective study which included 179 patients with femur fractures which were treated from January 2013 till September 2015 in one Hospital. They were treated with interlocking nail either by utilizing the piriformis fossa (PF) or the greater trochanter (GT) entry points. Post-operative radiographs of the femur were used to measure the varus deformity. Results: Out of 179 patients, there were 5 patients who were reported to have unacceptable varus malalignment (2.79%). These 5 patients were out of the 88 (5.68%) patients utilizing the greater trochanter as the entry point. The same 5 patients were out 90 patients that were diagnosed with proximal femur shaft fractures (5.55%). Analysis with logistic regression was statistically not significant. Conclusion: There was higher rate of varus malalignment seen in proximal femur shaft fractures treated with interlocking nails utilizing the greater trochanter entry point. The incidence of varus malalignment was not significant statistically. PMID- 29326764 TI - A Prospective Study to Evaluate the Management of Sub-trochanteric Femur Fractures with Long Proximal Femoral Nail. AB - Introduction: Sub-trochanteric fractures of the femur remains one of the most challenging fractures faced by orthopaedic surgeons. This study was done to analyse the management and complications of sub-trochanteric fractures using long proximal femoral nail (PFN). Materials and Methods: This was a prospective study of 50 patients with sub-trochanteric fractures of femur who were treated with long PFN at a tertiary care center from July 2012 to June 2016. The fractures were classified according to Seinsheimer classification. All patients were assessed functionally by Harris Hip Score. Results: Average duration of union was 17.08 weeks (range 13 to 32 weeks), union was achieved in 92% cases. Closed reduction was achieved in 68% cases and open reduction was required in 32% cases. Various intraoperative complications were seen in 12% and delayed complications in 26% of cases. Good anatomical results were achieved in 86% of cases and 14% were fair. As per Harris Hip score, excellent results were noted in 28% cases, good in 56% cases and fair in 16% cases. Conclusion: The long PFN is a reliable implant for subtrochanteric femur fractures, with high rate of bone union and minimal soft tissue damage. Intramedullary fixation has biological and biomechanical advantages, but the surgery is technically demanding. PMID- 29326765 TI - Pneumocephalus Following Combined Spinal Epidural Anaesthesia for Total Knee Arthroplasty: A Case Report. AB - The authors describe a case of pneumocephalus following epidural anaesthesia for total knee arthroplasty. Multiple attempts in locating the epidural space for the anaesthesia and the use of loss of resistance to air (LORA) technique were identified as the source of air entry. Supportive management was given including high flow oxygenation therapy and spontaneous reabsorption of air was noted five days after surgery. The presence of pneumocephalus should be kept in mind if patient develops neurological complications postoperatively following epidural anaesthesia. PMID- 29326766 TI - Dorsal Luno-capitate Impingement in a Professional Tennis Player: A Case Report. AB - A 30-year old male right handed professional tennis player complained about reduced athletic performance, chronic pain and restricted extension of his right wrist. Lateral radiograph of the right wrist demonstrated an osteophyte projecting from the dorsal lip of the lunate bone. The presence of an osteophyte on the lateral radiograph of the lunate along with the history, clinical examination, intra-operative findings, and post-operative satisfactory result made the diagnosis of dorsal luno-capitate impingement syndrome reasonable. PMID- 29326767 TI - Internal Fixation of Only the Distal End in a Bipolar Segmental Clavicle Fracture: A Case Report. AB - Bipolar segmental clavicle fractures are simultaneous clavicle fractures of both proximal and distal ends. Few case reports describing these fractures have been published, and the management of these injuries have remained controversial. Non operative treatment is likely to result in poor shoulder function due to the instability of the fracture in patients with high physical demands. In contrast, surgical treatment with fixation of both proximal and distal ends of the clavicle possibly may cause life-threatening complications. We present a 74-year old female farmer who had injured her left shoulder and was diagnosed with a bipolar segmental clavicle fracture. Taking the fracture mechanism into consideration, we surgically treated only the distal end of the clavicle fracture with a locking plate. The proximal end of the clavicle fracture was treated without surgical intervention. Both fracture sites achieved bony union after four months and she returned to her activities as a farmer. Quick DASH score was 5.0 with excellent results at three years after operation. PMID- 29326768 TI - Streptococcus Constellatus Spondylodiscitis in a Teenager: A Case Report. AB - Streptococcus constellatus is an extremely rare cause of pyogenic spondylodiscitis. Literature search yielded only one case report in an elderly 72 years old man with spontaneous T10-T11 S. constellatus spondylodiscitis. It is virtually unheard of in young teenage. We report the case of a 14 years old male teenager who presented with worsening low back pain for one year with no neurological deficit. Imaging studies were consistent with features of L4-L5 spondylodiscitis. CT guided biopsy grew a pure culture of streptococcus constellatus sensitive to penicillin and erythromycin. He showed full recovery with six weeks of intravenous antibiotics. Due to the insidious onset, this case highlight the importance of high clinical suspicion and early diagnosis, with image guided biopsy followed by treatment with appropriate intravenous antibiotics to enable full recovery without further neurological deterioration. PMID- 29326769 TI - Osteoradionecrosis in Subaxial Cervical Spine - a Rare and Devastating Complication: A Case Report. AB - Osteoradionecrosis, a rare complication of radiation therapy, is a slow progression disease which affects the surrounding structures of spinal components. It essentially weakens the soft tissue and bony configuration and can cause nerve impingement or cord compression. We describe a patient who underwent radiotherapy for thyroid cancer and presented with cervical kyphosis with anterolisthesis of C3/C4 and C4/C5 some 32 years later. We explore the role of anterior and posterior fusion, as well as hyperbaric oxygen therapy in promoting healing. PMID- 29326770 TI - Migratory Bone Marrow Edema Syndrome of the Hips: A Case Report. AB - Migratory bone marrow edema syndrome (BMES) of the hip is a rare entity. We report the case of a 41-year old male with migratory BMES of the hip with eight months interval period between onset of the pain and consultation. This patient was successfully treated non-surgically. It is important to always inform the patient with unilateral BMES of the hip regarding the possibility of future involvement of the contralateral hip. PMID- 29326771 TI - Dystrophic Scoliosis in Neurofibromatosis and Rib-head Resection: A Case Report. AB - Surgical management of scoliosis in Neurofibromatosis type I may be challenging at times especially when dealing with dystrophic curves. We highlight the importance of meticulous study of the radiological imaging and careful pre operative planning in a patient with dystrophic scoliosis. PMID- 29326772 TI - Posterior Elbow Dislocation with Brachial Artery Thrombosis Treated Non surgically: A Case Report. AB - The brachial artery is rarely injured in closed posterior dislocation of the elbow, unlike the high rate of vascular injury seen after dislocation of the knee. Despite the anatomical proximity of the brachial artery to the elbow joint, most cases of brachial artery injury after dislocation of the elbow are related to an associated fracture, an open injury or high-energy trauma. A high index of suspicion should be maintained as well as a thorough neurovascular examination with regards this potentially disastrous complication. We describe an unusual case of complete thrombosis of the brachial artery presenting with a posterior elbow dislocation following a fall (low energy trauma) that was treated nonoperatively. At three months follow-up, patient had good circulation over the affected limb, no complaints of ischemic pain or cold intolerance, no signs of Volkmann's ischemic contracture, and a range of motion that was comparable to the contralateral limb. PMID- 29326773 TI - Clinical Outcomes of Patients Undergoing Rotational Atherectomy Followed by Drug eluting Stent Implantation: A Single-center Real-world Experience. AB - Background: Rotational atherectomy (RA) is used to improve procedural success of percutaneous catheter interventions (PCIs) of complex and heavily calcified coronary lesions. We report the clinical experience and outcomes in our institution with the use of RA, followed by drug-eluting stent implantation. Materials and Methods: Data of 81 patients treated with PCI and adjunctive RA were analyzed. Clinical follow-up for the occurrence of major adverse events (MAEs) was obtained in all patients and correlated with significant variables using multivariate Cox proportional hazards analysis. Results: Mean age was 67.9 +/- 9.2 years, 61.7% had diabetes, 20.9% had chronic kidney disease, and 48.1% had previous acute coronary syndrome (ACS). Mean SYNTAX score was 29.8 +/- 12.2, with a 92.5% angiographic success rate achieved. In-hospital MAEs rate was 7.4% while mortality rate was 8.6%. On median follow-up of 12.2 months, incidence of MAEs of 13.5% with a 75% free incidence from MAEs at 34 months. Multivariate analysis revealed that a history of previous ACS, ejection fraction, neutrophil to lymphocyte ratio, platelet to lymphocyte ratio, SYNTAX score, burr to artery ratio, and attainment of angiographic success were significant predictors of MAEs. Conclusion: RA followed by drug-eluting stent implantation is a safe and effective method in improving procedural success as well as short- and long-term outcomes of PCI in our center. A combination of clinical and procedural factors is predictive for the occurrence of MAEs and should be taken into account in the application of this technique. PMID- 29326774 TI - The Burden of Truncus Arteriosus in an Urban City in Africa: How are we Fairing? AB - Background: The true incidence of truncus arteriosus in underdeveloped countries is difficult to determine. This is due largely to underreporting as a result of nonavailability of technologically advanced facilities to make definitive diagnosis prenatally. There is a lack of data on the profile and outcome of patients with persistent truncus arteriosus (PTA) in Nigeria. This study aims to document the demographic characteristics, mode of presentation, indications for echocardiography, associated anomalies, average age at diagnosis, and outcome of patients with truncus arteriosus in our center. Methods: Prospective and cross sectional involving consecutive patients diagnosed with PTA using echocardiography at the Paediatric Department of Lagos State University Teaching Hospital, Lagos, Nigeria as part of a large study between January 2008 and December 2015. Results: Only 25 patients had PTA during the study period. The prevalence of PTA among children presenting at the study center during the study period was 7.9/100,000. It constituted 2.4% of the cases of congenital heart disease and 7.1% of cases of cyanotic congenital heart disease. The male:female ratio was 1:1.1. The ages of the patients at diagnosis ranged between 0.75 and 153 months with a mean age at diagnosis +/- standard deviation of 18.4 months +/- 37.7. Only about 40% of patients were diagnosed within the neonatal period. Cyanosis was the most frequent indication for evaluation. Conclusion: PTA is as common in Nigeria as in the other parts of the world but diagnosed late. Cyanosis is the most common presenting feature. PMID- 29326775 TI - A Systematic Review on the Prevalence of Acute Myocardial Infarction in Iran. AB - In Iran, cardiovascular diseases are the most common causes of death. We aimed to perform a systematic review on the prevalence of acute myocardial infarction (AMI) in Iran based on Persian and English papers had been published from 1985 to 2015. Among 267 initially found articles, 142 were excluded; finally, a total number of 40 articles were found relevant which were reduced to 18. Smoking, hypertension, diabetes mellitus, and hypercholesterolemia were the most common risk factors for AMI. Premature MI prevalence was high in men, and smoking was the most common risk factor among young people. People in urban areas were more likely to experience AMI than rural people. The prevalence of AMI in Iran is high and has increased in recent years. Therefore, to restrain the rising trend of AMI, it is necessary to make the primary and secondary prevention efforts. PMID- 29326776 TI - Aorto-right Ventricular Fistula Following Percutaneous Transcatheter Aortic Valve Replacement: Case Report and Literature Review. AB - An 88-year-old woman with a prior history of aortic stenosis and history of valvuloplasty presented with worsening symptoms of heart failure and dizziness. She underwent successful transcatheter aortic valve replacement (TAVR) without complications. Follow-up echocardiograms revealed a small fistula connecting aorta to the right ventricle. The patient was initially asymptomatic but 3 months later developed overload of the right ventricle and heart failure and chose to continue medical therapy. She died of progressive heart failure at 9 months from onset of fistula. Aorto-right ventricular fistula is a rare complication of TAVR with only four cases reported in literature thus far. PMID- 29326777 TI - Surgical Treatment of Right Ventricular Rupture Caused by Total Occlusion of the Right Coronary Artery. AB - The rupture of the right ventricular anterior wall after myocardial infarction is a rare and life-threatening complication associated with high mortality. Early diagnosis by echocardiographic examination and successful treatment is discussed in this case report. PMID- 29326778 TI - "Double Ball Valve Mechanism Obstructing Both Right Ventricular Inflow and Outflow": Atypical Presentation of Right Atrial Myxoma Presenting as Right Ventricular Mass. AB - Large intracavitary masses such as those occupying most of a cardiac chamber and obstructing blood flow are not routinely encountered in clinical practice. The differential diagnosis includes neoplastic as well as nonneoplastic causes. Primary cardiac tumors by themselves are uncommon. We hereby report a rare case of a middle-aged female presenting with New York Heart Association Class III symptoms, whose transthoracic echocardiogram revealed a huge mass in right-sided chambers with a novel double ball valve type movement. She successfully underwent urgent surgical resection of the mass with histopathological confirmation of diagnosis. PMID- 29326779 TI - Tacrolimus as a Rare Cause of Pericardial Effusion in a Renal Transplant Recipient. AB - Pericardial effusion in a renal transplant recipient represents a diagnostic conundrum with a variety of differential diagnoses. Immunosuppressive medications such as sirolimus have been linked to pericardial effusions in the reported literature. Tacrolimus has been reported to be associated with pleural effusions and ascites. We present a case of a patient with tacrolimus as the likely cause of a recurrent pericardial effusion. PMID- 29326780 TI - Cardiac Magnetic Resonance of Myocardial Involvement in Leptospirosis. AB - Leptospirosis is a zoonotic infection caused by the Leptospira interrogans. Although it is endemic in tropical countries, global incidence has increased in several temperate and developed regions. Here, we present a cardiac magnetic resonance (CMR) and multidetector computer tomography (MDCT) chest features of active systemic leptospiral infection in a 19-year-old male. The MDCT appearances of lungs and CMR appearances of myocardium in icteric leptospirosis are described. Early diagnosis and prompt treatment is important to manage the cardiothoracic complications. PMID- 29326782 TI - The Art of a Medical Illustrator. PMID- 29326781 TI - Myxoma in Left Atrium. PMID- 29326783 TI - The Physician's Oath: Historical Perspectives. PMID- 29326784 TI - Auto-transplantation of whole rat ovary in different transplantation sites. AB - This study was carried out to assess the different ovarian transplantation sites after short-time autografting. Female rats were randomized into five groups, with six rats in each group, including control (intact), cervical subcutaneous transplanted (CST), back subcutaneous transplanted (BST), subfascial transplanted (SFT) and intramuscular transplanted (IMT) groups. In all experimental groups, the right ovary was removed and transplanted into different sites. After three weeks, ovaries were removed for morphology assessment, follicular counting and the rates of corpus luteum (CL) and cyst formation. Transplanted ovaries in BST and SFT groups were full of cysts and did not have sufficient numbers of intact follicles and were excluded from experiments. In IMT and CST groups, re anastomosis, follicular development and good homogeneity of the stromal tissue were seen. However, the difference in intact antral follicles between CST (7.92 +/- 0.02%) and CST-Op (opposite ovary of CST group) (30.99 +/- 0.03%) was significant as well as the difference between CST (7.92 +/- 0.02%) and control (10.08 +/- 0.01%) groups. In addition, the number of intact primordial follicles in the CST-Op (16.58 +/- 0.02%) group was significantly less than that of the control (40.40 +/- 0.03%) group. Interestingly, the number of CL was significantly increased in the CST-Op (11.71 +/- 0.01%) and IMT-Op (9.16 +/- 0.02%) groups compared to the control and experimental groups. Although both intramuscular and subcutaneous sites effectively preserved ovarian follicles after three weeks, cervical subcutaneous site was better suited for auto transplantation in rat. PMID- 29326785 TI - Effect of Satureja khuzestanica essential oil against fertility disorders induced by busulfan in female mice. AB - Busulfan is an alkylating agent affects ovarian follicles growth by oxidative stress induction. Satureja khuzestanica has antioxidant effects. The aim of this study was to examine whether S. khuzestanica essential oil (SKEO) exhibits protective effects on busulfan-induced ovarian failure. Eighty-four adult female mice were divided into six groups including dimethyl sulfoxide (control), SKEO 225.00 mg kg-1 (orally), busulfan 3.00 mg kg-1 (orally), busulfan 36.00 mg kg-1 (intraperitoneally), busulfan 3.00 mg kg-1 and SKEO and busulfan 36.00 mg kg-1 and SKEO. After 28 days, the mice were euthanized and oocytes were removed for in vitro fertilization (IVF) rate evaluation. Oocyte quantity and quality, fertilization rate and pre-implantation embryo development were daily examined with a stereo microscope in a period of 120 hr. Serum levels of estradiol and progesterone were also evaluated. Busulfan caused significant decreases in oocyte number and quality, fertilization rate, pre-implantation embryo development and embryo quality. The SKEO significantly decreased the adverse effects of busulfan. The present study indicated that SKEO can protect female fertility potential against busulfan induced damages. PMID- 29326786 TI - Molecular identification and phylogenetic analysis of chronic bee paralysis virus in Iran. AB - Chronic bee paralysis virus (CBPV) is an unclassified polymorphic single-stranded RNA virus. Among the viruses infecting honeybees, CBPV is known to induce significant losses in honeybee colonies. In this study, a total number of eighty nine suspected apiaries from four regions of Iran (including Mazandaran, Khorasan Razavi, Hormozgan, and Kurdistan) were sampled and submitted for molecular identification. Three positive samples were detected by RT-PCR. All positive samples were confirmed by sequencing. The phylogenetic tree which displays the molecular relationship between the viruses of different Iranian geographic regions and references isolates was constructed. The Iranian isolates formed two distinct phylogenetic groups (Group 1 and Group 2). The IR-CPV-GMG-1, IR-CPV-GMG 2, IR-CPV-GMG-4, and IR-CPV-GMG-6 formed Group 1 and IR-CPV-GMG-3, IR-CPV-GMG-5, and IR-CPV-GMG-7 were in Group 2 as a distinct group. Iranian isolates in group 1 were similar to European and East Asian CBPVs. This research was the first phylogenetic analysis of CBPV in Iran. Further researches are needed to study the other aspects of this virus-like genetic characteristics and pathogenesis in Iran. PMID- 29326787 TI - Molecular detection and phylogenetic analysis of Mycoplasma gallisepticum from backyard and commercial turkey flocks in Iran. AB - Mycoplasma gallisepticum (MG) is economically important pathogen of poultry causes airsacculitis and frequently infraorbital sinusitis in turkeys. Infections may remain without clinical signs, but they can make birds susceptible to secondary infections. This study was carried out for molecular detection and phylogenetic analysis of MG infections in commercial and backyard turkey flocks in some parts of Iran. A total number of 600 swab samples were collected from 18 commercial and 31 backyard turkey flocks. The PCR technique was performed for detecting 16S rRNA gene in the samples. Positive sample were subjected for sequencing of mgc2 gene. The results showed that 48.38% of backyard and 16.66% of commercial farms were positive for MG. These findings suggested the presence of MG in the commercial and backyard turkeys' farms of Iran. The molecular analysis indicated high sequence similarity between some Iranian turkeys isolates with Indian and Pakistanian MG isolates. Furthermore, substitutions of MG nucleic acids and correlated amino acids sequences may lead to some antigenic modifications. PMID- 29326788 TI - A molecular study on Babesia spp. in cattle and ticks in West-Azerbaijan province, Iran. AB - A total number of 450 blood samples were collected from 45 different randomly selected cattle herds. Light microscopic examination of blood smears revealed Babesia spp. infection in 4.2%, while 8.9% of blood samples were positive using PCR. Upon multiplex-PCR (mPCR), B. bigemina and B. bovis infections were detected in 37/40 (92.5%) and 3/40 (7.5%) samples, respectively. 530 ticks of 10 Ixodid species were collected from the same cattle. Hyalomma anatolicum was the most prevalent tick species (19.9%). An expected 520 bp fragment of Babesia spp. was generated in 22 (48.8%) of Rhpicephalus annulatus, 18 (40.0%) of R. bursa and 12 (30.0%) R. sanguineus sensu lato. The mPCR findings revealed that all infected ticks including R. annulatus, R. bursa and R. sanguineus were totally infected with B. bigemina. The DNA amplification of B. bovis and B. bigemina in egg samples showed that only B. bigemina was detected in two specimens of R. annulatus. It could be concluded that B. bigemina was the dominant causative agent in this region but the evidence of B. bovis infection of cattle in a few cases was noted, as well. The results suggested that B. bigemina and B. bovis could be detected in the DNA extracted from R. annulatus, R. bursa and R. sanguineus sensu lato confirming previous reports. Since B. bigemina is transmitted transovarially by R. annulatus, it might act as an important vector for B. bigemina. PMID- 29326790 TI - Microbiological, biochemical and organoleptic properties of fermented-probiotic drink produced from camel milk. AB - The microbiological and biochemical changes occurred during the fermentation of camel milk inoculated by three selected bacterial starter, were investigated as well as the sensory evaluation of the product. Milk samples were collected from camel herds of southeastern of Iran. Chr. Hansen ABT-10 starter including Lactobacillus acidophillus, Biphidobacterum biphidum and Sterptococcus thermophilus in ratio of 0.50 g per 100 mL of camel milk was added. This fermented product was examined at the 0, 3rd, 6th and 9th days for microbiological, biochemical and sensory evaluations. The results showed the number of starter bacteria was maintained at least 106 CFU mL-1 during nine test days. It was shown that it could be used as fermented-probiotic drink. The product did not show any microbial contamination. The acidity and protein amount of produced drink showed a significant (p < 0.05) increase in different test days. Fat, solids-not-fat and ash amount of the product showed significant differences at the ninths' test day compared to the zero test day (p < 0.05). Organoleptic properties of product including flavor, color, odor, consistency, mouth feel and overall acceptance were significantly improved (p < 0.05). Therefore, the produced fermented-probiotic drink, in addition to keep maintenance and increased nutritional quantity value, was accepted by consumers in terms of organoleptic properties and it could be used as a healthy and functional drink. PMID- 29326789 TI - Production and purification of polyclonal antibody against F(ab')2 fragment of human immunoglobulin G. AB - Antibodies are essential tools of biomedical and biochemical researches. Polyclonal antibodies are produced against different epitopes of antigens. Purified F(ab')2 can be used for animal's immunization to produce polyclonal antibodies. Human immunoglobulin G (IgG) was purified by ion exchange chromatography method. In all stages verification method of the purified antibodies was sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS PAGE). Purified IgG was digested by pepsin enzyme and F(ab')2 fragment was purified by gel filtration separation method. For production of polyclonal antibody, rabbit was immunized by purified F(ab')2 and antibody production was investigated by enzyme-linked immunosorbent assay. Purified anti-IgG F(ab')2 was conjugated with fluorescein isothiocyanate. Ion exchange chromatography purification yielded 38 mg of human IgG antibody. The results of SDS-PAGE in reduced and non-reduced conditions showed bands with 25-30 kDa molecular weight (MW) and 50-kDa respectively and a distinct band with 150 kDa MW. The results of non-reduced SDS-PAGE for determining the purity of F(ab')2 fragment showed one band in 90 kDa and a band in 150 kDa MW position. Purification by Ion exchange chromatography method resulted about 12 mg rabbit polyclonal antibody. Flow cytometry showed generated polyclonal antibody had an acceptable activity compared to commercial antibody. Taking together, purified IgG F(ab')2 and polyclonal anti-IgG F(ab')2 are useful tools in biomedical and biochemical researches and diagnostic kits. PMID- 29326791 TI - Effect of chlorpyrifos on sperm characteristics and testicular tissue changes in adult male rats. AB - Chlorpyrifos (CPF) is a broad spectrum organophosphate pesticide used for agricultural health purposes. Its principal mechanism of toxicity is the inhibition of acetylcholinesterase. The purpose of present study was to investigate the effects of CPF on testicular tissue and sperm parameters in male rats. Thirty-two healthy male rats were divided into two groups: a CPF-exposed group and a control-sham group. Control-sham group received corn oil (0.20 mL per day). The CPF was administered orally to male rats at 37 mg kg-1 BW for 45 days to evaluate the reproductive toxicity. In all rats, sampling for histological and sperm analyses was performed on days 5, 15, 30 and 45. The CPF caused a significant (p < 0.05) decrease in sperm count, viability and motility and increased immature sperms and DNA damage in sperm cells. Light microscopic analyses revealed increased arrested spermatogenesis, negative tubular differentiation and repopulation indexes and decreased Leydig cells number. These findings indicate that CPF has adverse effects on sperm cells and reproductive system of male rats. PMID- 29326792 TI - Florfenicol pharmacokinetics following intravenous and oral administrations and its elimination after oral and bath administrations in common carp (Cyprinus carpio). AB - The aim of this study was to evaluate pharmacokinetic profiles of florfenicol after a single dose of intravenous (5.00 mg kg-1 body weight) and oral (40.00 mg kg-1 body weight) administrations in common carp (Cyprinus carpio). The residue depletion of florfenicol was also investigated after oral administration (10.00 mg kg-1 body weight) and bath treatment (5.00 mg L-1) for 10 consecutive days. Pharmacokinetics of florfenicol in plasma after a single dose administration, at 10 time points (0.50, 1, 2, 4, 8, 12, 24, 72, 120 and 168 hr) and florfenicol concentrations in tissues (plasma, liver and muscle) at three time points (1, 7 and 14 days) after 10 consecutive days, were analyzed by high performance liquid chromatography. The peak concentration of florfenicol was 137.02 ng mL-1 and the time to reach peak concentration in plasma was two hr. The elimination half lives, the volume of distribution at steady state and total body clearance were estimated as 21.40 hr, 0.30 and 0.03 L hr-1, respectively. After drug administration for 10 days, it's concentration in plasma and muscle in oral treatment was significantly more than bath treatment in all days. Drug concentrations in the liver after bath treatment were significantly higher for a shorter period than the concentration in the oral treatment, indicating that higher levels of florfenicol for a longer period can be achieved in the tissues after oral drug administration. According to pharmacokinetic results, florfenicol may be a suitable candidate for the treatment of common bacterial infections in common carp farming. PMID- 29326793 TI - European pond turtle (Emys orbicularis persica) as a biomarker of environmental pollution in Golestan and Mazandaran provinces, Iran. AB - Anthropogenic environmental changes are hypothesized as main reasons for animal species population declines. Heavy metals contamination is one of the worst threats to animals among human-caused threats. As most of the heavy metals bioaccumulate in organisms, analyzing concentrations of heavy metals in long living animals, such as turtles, would be very useful for biomonitoring of environmental quality. The European pond turtle is classified as a Near Threatened in the red list of International Union for Conservation of Nature. The objective of this study was to obtain information on heavy metals contamination in this species, as a sentinels, to evaluate the overall health of both the European pond turtles and their ecosystem in Golestan and Mazandaran provinces. Biological samples of 10 living and 15 dead European pond turtles were analyzed by atomic absorption spectrophotometer for Zn, Pb, Cu, and Cd contaminations. Highest concentration of Zn (202.6 +/- 58.5 MUg g-1), Cd (4.4 +/- 1.3 MUg g-1) and Cu (3.8 +/- 1.7 MUg g-1) was detected in livers and the highest accumulation of Pb (45.6 +/-16.3 MUg g-1) occurred in kidneys. Positive correlations were detected among Zn, Pb and Cd tissue concentrations and carapaces curve length. Heavy metal levels were higher in males than females. Heavy metals contamination of sampled turtles stood in high degree. However, there is clearly a need to evaluate heavy metals physiologic effects on European pond turtles. PMID- 29326795 TI - Molecular detection of Ehrlichia spp. in blood samples of dogs in southern Iran using polymerase chain reaction. AB - Ehrlichiosis is a zoonotic disease which has been reported from some regions of Iran. This study was aimed to determine the presence and prevalence of ehrlichiosis in suspected dogs referred to the Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran using polymerase chain reaction (PCR). Blood samples were collected from 98 suspected dogs with at least one of the five following findings: thrombocytopenia, anemia (hematocrit < 37.00%), gastrointestinal signs and respiratory and/or central nervous system diseases. Complete blood count was performed for each sample. After genomic DNA extraction, PCR assay was carried out using a commercial PCR kit. The results showed that only three out of 98 samples (3.06%) were positive for ehrlichiosis. There was no significant difference in hematological parameters between infected and non infected cases. These results emphasize that ehrlichiosis has a low prevalence among examined cases in southern Iran. Further serological and molecular studies are needed to clarify the epidemiological feature of this infection in different areas of Iran. PMID- 29326794 TI - Effects of bisphenol-S low concentrations on oxidative stress status and in vitro fertilization potential in mature female mice. AB - Bisphenol-S (BPS) is a new bisphenol-A substitute widely used in many plastic products. Bisphenol-A as a main member of bisphenol family has been known as an endocrine system disrupter chemical compound. Like other members of bisphenol family, there is public health concern about the toxic effects of BPS on reproductive system, thus, we examined BPS effects on in vitro fertilization (IVF) potential and oxidative stress status in a murine model. Adult female mice (n = 70) were randomly divided into control and BPS-treated groups. Bisphenol-S was administered at doses of 0, 1, 5, 10, 50 and 100 ug kg-1 body weight per day intraperitoneally for 21 consecutive days. Twenty-Four hr after the last treatment, five mice in each group were super-ovulated and the oocytes were harvested for IVF. All ovaries were collected and used for biochemical factors analyses. Bisphenol-S exposure at doses more than 10 ug kg-1 induced developmental arrest of pre-implantation embryos. Further, lipid peroxidation measurement in ovaries indicated that all doses of BPS cause oxidative stress in female mice. In conclusion, BPS administration even in low doses can result in female reproductive toxicities and oxidative stress in mice. PMID- 29326796 TI - Effect of different levels of dietary vitamin E on reproductive and productive performances in Japanese quails (Coturnix coturnix japonica). AB - The aim of this study was to evaluate the effects of dietary vitamin E on reproductive and productive parameters in Japanese quails. A total number of 240 female and 80 male Japanese quail were divided into five treatments with four replications in a completely randomized design. Experimental diets were zero control, 30, 60, 120 and 240 mg kg-1 of vitamin E. Fertility and total hatchability were not affected by treatments. But, the lowest hatch of fertile eggs and the highest embryonic death were observed in control group (p < 0.05). Left testes weight in T2 and T4 was higher than control (p < 0.05). Right testes weight and sera FSH concentration in males were not affected by treatments. The highest testosterone concentration of males was observed in T5 (p < 0.05). Weight and length of oviduct as well as weight of ovary and FSH concentration in females did not affected by treatments. Estrogen concentration in T4 treatment was greater than control (p < 0.05). Most of the egg characteristics were not affected by treatments. However, higher egg mass and production rates were observed in T2 and T3groups than control group (p < 0.05). Feed intake and conversion ratio did not differ among treatments. In conclusion, dietary vitamin E improved hatch of fertile egg, embryonic viability, egg mass and production rates in Japanese quail. The effect of dietary vitamin E combined with selenium on these characteristics are recommended for future study in Japanese quail. PMID- 29326797 TI - Congenital lumbar vertebrae agenesis in a lamb. AB - Congenital agenesis of lumbar vertebrae was diagnosed in a day-old female lamb based on radiology and clinical examinations. There was no neurological deficit in hindlimb and forelimb associated with standing disability. Radiography of the abdominal region revealed absence of lumbar vertebrae. Necropsy confirmed clinical and radiographic results. No other anomaly or agenesis was seen macroscopically in the abdominal and thoracic regions as well as vertebral column. Partial absence of vertebral column has been reported in human and different animal species, as an independent occurrence or associated with other organs anomalies. The latter has been designated as caudal regression syndrome. Vertebral agenesis may arise from irregularity in the differentiation of somites to the sclerotome or sclerotome to the vertebral primordium. Most of the previously reported cases of agenesis were related to the lumbosacral region, lonely or along with other visceral absences. This case was the first report of congenital agenesis of lumbar vertebrae in a lamb. PMID- 29326798 TI - Late-Onset Hepatic Veno-Occlusive Disease after Allografting: Report of Two Cases with Atypical Clinical Features Successfully Treated with Defibrotide. AB - Hepatic Veno-Occlusive Disease (VOD) is a potentially severe complication of hematopoietic stem cell transplantation (HSCT). Here we report two patients receiving an allogeneic HSCT who developed late onset VOD with atypical clinical features. The two patients presented with only few risk factors, namely, advanced acute leukemia, a myeloablative busulphan-containing regimen and received grafts from an unrelated donor. The first patient did not experience painful hepatomegaly and weight gain and both patients showed only a mild elevation in total serum bilirubin level. Most importantly, the two patients developed clinical signs beyond day 21 post-HSCT. Hepatic transjugular biopsy confirmed the diagnosis of VOD. Intravenous defibrotide was promptly started leading to a marked clinical improvement. Based on our experience, liver biopsy may represent a useful diagnostic tool when the clinical features of VOD are ambiguous. Early therapeutic intervention with defibrotide represents a crucial issue for the successful outcome of patients with VOD. PMID- 29326800 TI - Sterile 'Abscess' of the Spleen and the Sickle Cell Trait. PMID- 29326799 TI - Molecular Heterogeneity in Acute Promyelocytic Leukemia - a Single Center Experience from India. AB - Atypical breakpoints and variant APL cases involving alternative chromosomal aberrations are seen in a small subset of acute promyelocytic leukemia (APL) patients. Over seven different partner genes for RARA have been described. Although rare, these variants prove to be a diagnostic challenge and require a combination of advanced cytogenetic and molecular techniques for accurate characterization. Heterogeneity occurs not only at the molecular level but also at clinico-pathological level influencing treatment response and outcome. In this case series, we describe the molecular heterogeneity of APL with a focus on seven variant APL cases from a single tertiary cancer center in India over a period of two and a half years. We discuss five cases with ZBTB16-RARA fusion and two novel PML-RARA variants, including a Bcr3 variant involving fusion of PML exon4 and RARA exon3 with an additional 40 nucleotides originating from RARA intron2, another involving exon 6 of PML and exon 3 of RARA with addition of 126 nucleotides, which mapped to the central portion of RARA intron 2. To the best of our knowledge, this is the first case series of this kind from India. PMID- 29326803 TI - Treatment of Early Stages Hodgkin Lymphoma During Pregnancy. AB - Background: To assess maternal and fetal outcome of women and newborns who received chemotherapy during pregnancy to treat Hodgkin lymphoma (HL)in early stages (IA, IIA), we performed a retrospective analysis of a cohort of 44 pregnant women with HL and early stages, diagnosed and treated between 1988 to 2013, at a tertiary reference cancer center. Methods: We analyzed data on HL characteristics and treatment, with a particular attention to maternal and fetal complications; in children, we performed a longer follow-up to detect any anomaly in physical development, scholar performance, psychological, cardiac, neurological function, and intelligence tests. Results: Median age was 29.4 (range 21-37) years; Most patients were stage IIA (86%), had M a bulky mediastinal disease (78%) and 60% had > 3 nodal sites involved; thus these patients were considered to have a not favorable condition. Abortion was refused when it was proposed. All patients received chemotherapy during pregnancy; ABVD (adryamicin, bleomycin, vinblastine, and dacarbazine) at standard doses and schedule, even during the first trimester. Radiotherapy, when indicated, was administered after delivery in 39 patients. No obstetrical complications were observed, delivery occurred between 33 to 36 weeks in 10 cases (22%); and >37 weeks in 34 cases (87%). Four newborns were low-weight: 2012 g median (range 1750 - 2350 g). No clinical malformations were observed, and development of newborns was physiological without evidence of cardiac and neurological damage, behavior, intelligence, and scholar attendance were normal. At median follow-up range of 120.4 (48-299) months, the progression-free survival and overall survival of patients were 95% and 93%respectively. Conclusion: Combined chemotherapy, as initial therapy appears to be the best approach in this setting of patients, with an excellent outcome to both mothers and children. If radiotherapy is necessary, it could be administered after delivery. PMID- 29326801 TI - Waldenstrom's Macroglobulinemia: An Update. AB - Waldenstrom Macroglobulinemia is a rare lymphoproliferative disorder with distinctive clinical features. Diagnostic and prognostic characterisation in WM significantly changed with the discovery of two molecular markers: MYD88 and CXCR4. Mutational status of these latter influences both clinical presentation and prognosis and demonstrated therapeutic implications. Treatment choice in Waldenstrom disease is strictly guided by patients age and characteristics, specific goals of therapy, the necessity for rapid disease control, the risk of treatment-related neuropathy, disease features, the risk of immunosuppression or secondary malignancies and potential for future autologous stem cell transplantation. The therapeutic landscape has expanded during the last years and the approval of ibrutinib, the first drug approved for Waldenstrom Macroglobulinemia, represents a significant step forward for a better management of the disease. PMID- 29326802 TI - Allogeneic Hematopoietic Stem Cell Transplantation In Therapy-Related Myeloid Neoplasms (t-MN) of the Adult: Monocentric Observational Study and Review of the Literature. AB - Background: Therapy related myeloid neoplasms (t-MN) occur due to direct mutational events of chemotherapeutic agents and radiotherapy. Disease latency, mutational events and prognosis vary with drugs categories. Methods: We describe a cohort of 30 patients, 18 females and 12 males, with median age of 52.5 years (range, 20 to 64), submitted to allogeneic stem cell transplantation (HSCT) in our department between September 1999 and March 2017. Patients had a history of solid tumour in 14 cases, haematological disease in 15 cases and both of them in one case. After a median of 36.5 months (range, 4 to 190) from first neoplasm, patients developed t-AML in 19 cases and t-MDS in 11 cases. Molecular abnormalities were detected in 5 patients, while karyotype aberrations were found in 17 patients. Patients received conventional chemotherapy in 14 cases, azacitidine in 10 cases and both of them in one case. Five patients were submitted to HSCT without previous treatment except for supportive therapy. Results: Seventeen patients obtained sustained CR after SCT, while 8 patients showed resistant or relapsed disease. The remaining five patients died early after SCT. At follow up time (May 2017) 13 patients were alive with a median OS of 48 months (range 3-195), while 17 patients died after a median of 4 months (range 1-27) by relapse mortality in 6 cases and non-relapse mortality in the other 11 patients. Conclusions: Global OS was 43%. After SCT, 72.2% of patients with t-MN maintained a sustained CR. PMID- 29326804 TI - Occult Hepatitis B Virus Infection and Associated Genotypes among HBsAg-negative Subjects in Burkina Faso. AB - Background: The presence of HBV DNA in the liver (with detectable or undetectable HBV DNA in the serum) of individuals tested HBsAg negative by currently available assays is defined occult B Infection (OBI). It remains a potential transmission threat and risk to HBV chronic infection. The purpose of this study was to determine the OBI prevalence among HBsAg negative subjects and to characterize associated genotypes. Methods: Blood samples of 219 HBsAg-negative subjects tested by ELISA were collected. HBV DNA was investigated in all samples. Viral loads were determined using quantitative real-time PCR. All samples were screened for HBV markers (anti-HBc, anti-HBe, HBsAg). The Pre-S/S region of the HBV genome was sequenced. The database was analyzed using the SPSS and Epi info software. Phylogenetic analysis was performed using the BioEdit and MEGA software. Results: Of the 219 samples, 20.1% were anti-HBc positive, 1.8% HBeAg and 22.8% were anti HBe positive. Fifty-six (56) (25.6%) of the samples had a detectable HBV DNA and viral loads ranging from 4 IU/mL to 13.6 106 IU/mL. Sixteen of them (16/56) had a viral load < 200 IU/mL, resulting in an OBI prevalence of 7.3% (16/219) in our study. The remaining 40 subjects had viral loads > 200 IU/mL, resulting in a "false OBI" prevalence of 18.3% (40/219). HBV genotype E was predominant followed by the quasi-sub-genotype A3. A single "false OBI" strain had the characteristic mutation G145R. Other mutations were observed and all located in the major hydrophilic region (MHR) of the S gene. Conclusion: The study reported a prevalence of 7.3% of occult hepatitis B infection. It confirms the predominance of genotype E and the existence of a subgroup of quasi-sub-genotype A3 of HBV in Burkina Faso. It further provides information on the presence of "false OBI." This study has found mutations in the major hydrophilic region (MHR) of the pre S/S gene of HBV. PMID- 29326805 TI - Detection of beta-Thalassemia Carriers by Red Cell Parameters Obtained from Automatic Counters using Mathematical Formulas. AB - Background: beta-thalassemia major is a severe disease with high morbidity. The world prevalence of carriers is around 1.5-7%. The present study aimed to find a reliable formula for detecting beta-thalassemia carriers using an extensive database of more than 22,000 samples obtained from a homogeneous population of childbearing age women with 3161 (13.6%) of beta-thalassemia carriers and to check previously published formulas. Methods: We applied a mathematical method based on the support vector machine (SVM) algorithm in the search for a reliable formula that can differentiate between thalassemia carriers and non-carriers, including normal counts or counts suspected to belong to iron-deficient women. Results: Shine's formula and our SVM formula showed >98% sensitivity and >99.77% negative predictive value (NPV). All other published formulas gave inferior results. Conclusions: We found a reliable formula that can be incorporated into any automatic blood counter to alert health providers to the possibility of a woman being a beta-thalassemia carrier. A further simple hemoglobin characterization by HPLC analysis should be performed to confirm the diagnosis, and subsequent family studies should be carried out. Our SVM formula is currently limited to women of fertility age until further analysis in other groups can be performed. PMID- 29326806 TI - Negative Impact of Prolonged Antibiotics or Persistent Diarrhea on Vitamin K1 Levels in 2-24 Weeks aged Egyptian Infants. AB - Background: To evaluate the hazard of prolonged antibiotic therapy and/or persistent diarrhea on vitamin K1 (VK1) level and bleeding profile in infants (2 24 weeks). Methods: A one-year case-control study, conducted at Ain Shams University, Egypt. 338 infants (2-24 weeks) were recruited and divided into 3 groups (1:1:3 ratios); group A (n=67) patients who received antibiotics for >=10 days, group B (n=67) who had persistent diarrhea >= 14 days and group C (n=204) age- and gender- matched infants who had not either received antibiotics nor had diarrhea. All subjected to clinical assessment, bleeding history and had their complete blood count (CBC), PT and PTT, liver transaminases and VK1 level assayed. Results: There was a significant increase in frequency of VKDB (vitamin K deficiency bleeding) and abnormal bleeding profile in cases than control group. There was significant negative correlation between VK1 level and duration of diarrhea, length of antibiotics used and bleeding profile. Antibiotic usage has hazardous effect on VK1 level in those with diarrhea; more patients were receiving antibiotic in those with persistent diarrhea and VKDB (N=55) than those with persistent diarrhea and normal VK1 (N=12). The longer duration of antibiotic therapy the lower level of VK1. Combining cephalosporin/penicillin therapy and/or diarrhea, in particular, had an impact on VK1 level. Conclusion: VKDB, a preventable cause of life-threatening hemorrhage, is still a major health problem in Egyptian infants, where persistent diarrhea and misuse of antibiotics are prevalent, necessitate a booster dose of VK in those high risk infants. PMID- 29326807 TI - Heavy-Chain Diseases and Myeloma-Associated Fanconi Syndrome: an Update. AB - The heavy chain diseases (HCDs) are rare B-cell malignancies characterized by the production of a monoclonal immunoglobulin heavy chain without an associated light chain. There are three types of HCD, defined by the class of immunoglobulin heavy chain produced: IgA (alpha-HCD), IgG (gamma-HCD), and IgM (MU-HCD). Alpha-HCD is the most common and usually occurs as intestinal malabsorption in a young adult from a country of the Mediterranean area. Gamma- and MU-HCDs are rarer and associated with a B-cell non-Hodgkin lymphoma that produces an abnormal Ig heavy chain. These patients may occasionally be diagnosed with a monoclonal gammopathy of undetermined significance (MGUS). Fanconi syndrome, on the other hand, can be primary (inherited) or secondary (acquired). The only exception to this rule is the idiopathic form. Adult acquired Fanconi syndrome can be a rare complication of a monoclonal gammopathy. At diagnosis, most patients have an MGUS or smoldering multiple myeloma, with renal failure and evidence of osteomalacia. During follow-up, patients can develop an end-stage renal disease. Chemotherapy provides little benefit on renal function. PMID- 29259764 TI - Utility of massive open online courses (MOOCs) concerning outbreaks of emerging and reemerging diseases. AB - The emergence and re-emergence of infectious diseases such as Ebola, chikungunya, and Zika increase the necessity of knowledgeable and skilled health professionals. Massive open online courses (MOOCs) arise as opportunities that allow people around the world to participate in higher education courses. A search was conducted on specialized MOOC platforms to find courses related to outbreaks, using terms included in the list of the WHO disease outbreaks from January 1st to December 31 st, 2016. We found seven courses about Ebola, two about Zika, three about the dynamics of epidemics and pandemics, and only one course about dengue, chikungunya, and malaria. Most of the courses were conducted in English. The courses on Ebola, Zika and chikungunya were released after their last outbreak. MOOCs could be used to learn about health issues of global relevance, and with the necessity of fast divulgation of knowledge and skills. Translating the courses into more languages could give these courses more traction, and allow participation of professionals in regions affected by these outbreaks. PMID- 29123646 TI - First de novo draft genome sequence of Oryza coarctata, the only halophytic species in the genus Oryza. AB - Oryza coarctata plant, collected from Sundarban delta of West Bengal, India, has been used in the present study to generate draft genome sequences, employing the hybrid genome assembly with Illumina reads and third generation Oxford Nanopore sequencing technology. We report for the first time the draft genome with the coverage of 85.71 % and deposited the raw data in NCBI SRA, with BioProject ID PRJNA396417. PMID- 29326811 TI - Impact of liver volume and liver function on posthepatectomy liver failure after portal vein embolization- A multivariable cohort analysis. AB - Background: Liver failure remains a life-threatening complication after liver resection, and is difficult to predict preoperatively. This retrospective cohort study evaluated different preoperative factors in regard to their impact on posthepatectomy liver failure (PHLF) after extended liver resection and previous portal vein embolization (PVE). Methods: Patient characteristics, liver function and liver volumes of patients undergoing PVE and subsequent liver resection were analyzed. Liver function was determined by the LiMAx test (enzymatic capacity of cytochrome P450 1A2). Factors associated with the primary end point PHLF (according to ISGLS definition) were identified through multivariable analysis. Secondary end points were 30-day mortality and morbidity. Results: 95 patients received PVE, of which 64 patients underwent major liver resection. PHLF occurred in 7 patients (11%). Calculated postoperative liver function was significantly lower in patients with PHLF than in patients without PHLF (67 vs. 109 MUg/kg/h; p = 0.01). Other factors associated with PHLF by univariable analysis were age, future liver remnant, MELD score, ASA score, renal insufficiency and heart insufficiency. By multivariable analysis, future liver remnant was the only factor significantly associated with PHLF (p = 0.03). Mortality and morbidity rates were 4.7% and 29.7% respectively. Conclusion: Future liver remnant is the only preoperative factor with a significant impact on PHLF. Assessment of preoperative liver function may additionally help identify patients at risk for PHLF. PMID- 29326812 TI - Endovascular laser treatment of incompetent saphenous veins using the 1470 nm diode laser and radial fiber. AB - Objectives: To assess the technical success, complications, and patients' quality of life (QoL) after treatment of chronic venous disease (CVD) using the 1470 nm radial fiber laser. Methods: A total of 170 patients with chronic venous disease, classified as C2 to C4 according to CEAP classification, were treated for incompetent greater (GSV) and small (SSV) saphenous veins, using the 1470 nm radial fiber laser and application of tumescent anesthesia. Additional phlebectomies were performed through stab microincisions, while 11 patients further underwent sclerotherapy intraoperatively. Patients' QoL was recorded using a CIVIQ-20 questionnaire pre and post-operatively. Results: Technical success regarding GSV vein occlusion was recorded at 100% and 98% during 12 and 24 month follow up respectively. SSV occlusion rates were recorded at 100% for the same period. 55% of patients were classified as C2. Mean laser application time was 401.1 +/- 92.6 s and 169.4 +/- 56.8 s, while an average of 3986.6 +/- 934.9 and 1643.5 +/- 534.1 J were applied during ablation of GSV and SSV respectively. Three incidents of postoperative pain were recorded. Two patients exhibited partial proximal GSV recanalization, while two patients reported mild post-operative temporal paresthesia. No major complications were observed post operatively. A significant improvement in patients' QoL was demonstrated through the CIVIQ-20 questionnaires. Mean pre-operative CIVIQ-20 total score was recorded at 77 +/- 3.9, with a total score of 32.8 +/- 2.8 being observed during 12 month follow-up. Conclusions: Endovascular laser treatment using the 1470 nm radial fiber laser constitutes an effective and safe modality for treatment of CVD. PMID- 29326808 TI - Diagnosis of Zollinger-Ellison syndrome in the era of PPIs, faulty gastrin assays, sensitive imaging and limited access to acid secretory testing. AB - In recent years the diagnosis of Zollinger-Ellison syndrome (ZES) has become increasingly controversial with several new approaches and criteria proposed, differing from the classical biochemical criterion of inappropriate hypergastrinemia (i.e., hypergastrinemia in the presence of hyperchlorhydria) (Table 1). These changes have come about because of the difficulty and potential dangers of stopping proton pump inhibitors (PPIs) for gastric acid analysis; the recognition than many of the current assays used to assess gastrin concentrations are unreliable; the development of sensitive imaging modalities that detect neuroendocrine tumors (NETs) including an increasing number of the primary gastrinomas; the increased use of percutaneous or endoscopic ultrasound (EUS) directed biopsies/cytology and the general lack of availability of acid secretory testing. In this article we will discuss the basis for these controversies, review the proposed changes in diagnostic approaches and make recommendations for supporting the diagnosis of ZES in the modern era. PMID- 29326813 TI - Surgical treatment of aggressive vertebral hemangioma causing progressive paraparesis. AB - Vertebral hemangioma is a benign vascular lesion that may onset with neurologic symptoms due to spinal cord compression by epidural extension. Surgical procedure, embolization and radiotherapy are the gold standard for the treatment of this disease. We present a case of a 84 years old woman admitted at our department with worsening paraparesis and urinary retention. Her magnetic resonance images (MRI) showed a lesion involving both anterior and posterior vertebral element of D5, with extension into epidural space and spinal cord compression. The patient was operated for laminectomy and epidural lesion removal. Histological examination confirmed the diagnosis of cavernous hemangioma. PMID- 29326815 TI - Case series with literature review: Surgical approach to megarectum and/or megasigmoid in children with unremitting constipation. AB - Background: The role of surgery in treating children with functional constipation (FC) is controversial, because of the efficacy of bowel management programs. This case series is comprised of failures: 43 children, spanning 25 years' practice, who had megarectosigmoid (MRS) and unremitting constipation. Purpose: To determine whether these children were helped by surgery, and to contribute to formulating a standard of care for children with megarectum (MR) and/or redundancy of the sigmoid colon (MS) who fail medical management. Method: We describe our selection criteria and the procedures we utilized - mucosal proctectomy and endorectal pull-through (MP) or sigmoidectomy (SE) with colorectal anastomosis at the peritoneal reflection. The internet (social media) allowed us to contact most of these patients and obtain extremely long follow-up data. Results: 30/43 patients had MP and 13/43 had SE. Follow-up was obtained in 83% MP and 70% SE patients. 60% of MP and 78% of SE patients reported regular evacuations and no soiling. 20% MP patients had occasional urgency or soiling or episodic constipation. 12% MP and 22% SE patients required antegrade continence enemas (ACE) or scheduled cathartics and/or stool softeners. 4% MP had no appreciable benefit, frequent loose stools and soiling, presumably from encopresis. Conclusion: MR is characterized by diminished sensation, poor compliance and defective contractility. Patients with MR do better with MP, which effectively removes the entire rectum versus SE, where normal caliber colon is anastomosed to MR at the peritoneal reflection; furthermore, MP reliably preserves continence; whereas total proctectomy (trans-anal or trans-abdominal) may cause incontinence. PMID- 29326817 TI - Seating in aged care: Physical fit, independence and comfort. AB - Objectives: This research was intended to provide a greater understanding of the context and needs of aged care seating, specifically:To conduct an audit of typical chairs used in aged care facilities;To collect data about resident and staff experiences and behaviour around chairs in order to gain a deeper understanding of the exact issues that residents and staff have with the chairs they use at aged care facilities;To identify positive and negative issues influencing use of chairs in aged care facilities;To deliver evidence-based recommendations for the design of chairs for aged care facilities. Methods: Methods included a chair dimension audit, interviews with residents, experts and carers and observations of aged care residents getting into chairs, sitting in them and getting out. Results: Results showed that residents, experts and carers all prefer chairs which are above the recommended height for older people so that they will be able to get out of them more easily. Armrests were essential for ease of entry and egress. However, many residents struggled with chairs which were also too deep in the seat pan so that they could not easily touch the floor or sit comfortably and were forced to slump. Most residents used cushions and pillows to relieve discomfort where possible. Conclusion: The implications of these issues for chair design and selection are discussed. Variable height chairs, a range of chairs of different heights in each space and footrests could all address the height problem. Chair designers need to address the seat depth problem by reducing depth in most aged care specific chairs, even when they are higher. Armrests must be provided but could be made easier to grip. Addressing these issues would increase access to comfortable yet easy-to-use chairs for a wider range of the aged care population. PMID- 29326814 TI - Paediatric dentistry- novel evolvement. AB - Pediatric dentistry provides primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, together with special health care needs. This specialty encompasses a variety of skills, disciplines, procedures and techniques that share a common origin with other dental specialties however these have been modified and reformed to the distinctive requirements of infants, children, adolescents and special health care needs. Disciplines comprise of behavior guidance, care of the medically and developmentally compromised and disabled patient, supervision of orofacial growth and development, caries prevention, sedation, pharmacological management, and hospital dentistry including other traditional fields of dentistry. The skills apply to the ever-changing stages of dental, physical, and psychosocial development for treating conditions and diseases distinctive to growing individuals. Hence with the changing scope of practice it is imperative that the clinician stays updated with the current evidence based trends in practice, collaborates with other disciplines and Imparts quality oral health care tailored to the specific needs of every child. PMID- 29326816 TI - Immune checkpoint inhibition: prospects for prevention and therapy of hepatocellular carcinoma. AB - The global prevalence of liver cancer is rapidly rising, mostly as a result of the amplified incidence rates of viral hepatitis, alcohol abuse and obesity in recent decades. Treatment options for liver cancer are remarkably limited with sorafenib being the gold standard for advanced, unresectable hepatocellular carcinoma but offering extremely limited improvement of survival time. The immune system is now recognised as a key regulator of cancer development through its ability to protect against infection and chronic inflammation, which promote cancer development, and eliminate tumour cells when present. However, the tolerogenic nature of the liver means that the immune response to infection, chronic inflammation and tumour cells within the hepatic environment is usually ineffective. Here we review the roles that immune cells and cytokines have in the development of the most common primary liver cancer, hepatocellular carcinoma (HCC). We then examine how the immune system may be subverted throughout the stages of HCC development, particularly with respect to immune inhibitory molecules, also known as immune checkpoints, such as programmed cell death protein-1, programmed cell death 1 ligand 1 and cytotoxic T lymphocyte antigen 4, which have become therapeutic targets. Finally, we assess preclinical and clinical studies where immune checkpoint inhibitors have been used to modify disease during the carcinogenic process. In conclusion, inhibitory molecule-based immunotherapy for HCC is in its infancy and further detailed research in relevant in vivo models is required before its full potential can be realised. PMID- 29326818 TI - Coping, social support and information in patients with pulmonary arterial hypertension or chronic thromboembolic pulmonary hypertension: A 2-year retrospective cohort study. AB - Objectives: Pulmonary arterial hypertension and chronic thromboembolic pulmonary hypertension are severe diseases with complicated treatment that need care at specialist clinics. The aim was to investigate changes in the patients' perceptions on coping, social support and received information when attending a newly started nurse-coordinated pulmonary arterial hypertension-outpatient clinic. Methods: The present study was a descriptive, questionnaire-based cohort study including 42 adult patients. To evaluate coping, the Pearlin Mastery Scale was used. Social support, information and health-related quality of life were measured using Social Network and Support Scale, QLQ-INFO25 and the EQ-5D. Results: Attending the pulmonary arterial hypertension-outpatient clinic increased coping ability (Mastery Scale) significantly (baseline 16.0 +/- 3.3 points vs 2-year follow-up 19.6 +/- 5.2 points, p < 0.001) while there was no difference in social network and support or in perception of received information after. Patients who improved their coping ability (67%) were younger, had better exercise capacity, experienced better health-related quality of life and were more satisfied with received information about treatment and medical tests than those who reduced the coping ability. There was no difference in gender, diagnosis, time since diagnose, pulmonary arterial hypertension-specific treatment, education level or civil status between the two groups. Conclusion: This study suggests that the pulmonary arterial hypertension-team, in partnership with the patient, can support patients to take control of their disease and increase their health-related quality of life. PMID- 29326819 TI - Association between bullying and pediatric psychiatric hospitalizations. AB - Objectives: Bullying is a serious public health issue. We sought to demonstrate an association between bullying victimization and hospital admissions for acute psychiatric problems. We described the demographics and types of bullying in a sample of hospitalized patients in Staten Island, NY, and compared bullying victimization scores with psychiatric versus medical admissions. Methods: Patients in grades 3-12 were recruited from the Staten Island University Hospital Inpatient Pediatrics unit and emergency department. Patients completed the validated Olweus Bully/Victim Questionnaire (OBQ) was analyzed to formulate a report of bullying in our sample as well as a sub-score measurement of bullying victimization. Pediatric residents simultaneously documented whether the subject was a medical versus an in-patient psychiatry admission. Statistical analysis was performed to look for an association between the victimization sub-score and a psychiatric indication for admission. Results: A total of 185 surveys were analyzed. Peak bullying occurred in 7th and 8th grades. Demographics and types of bullying in our sample were described. A strong association between bullying victimization and hospitalization for in-patient psychiatry was demonstrated. Association between bullying victimization and suicidal ideation, psychiatry, and social work consults was also shown. Concern for an association between hospitalization for psychogenic illness and bullying victimization was also raised. Conclusions: There is a significant association between bullying victimization and psychiatric hospital admissions. This raises the specter of the serious consequences of bullying as it is the first study to prospectively link hospital admissions to bullying. Studies using a valid measure of psychogenic illness to look for an association with bullying victimization are needed. PMID- 29326820 TI - A case of intra-arterial thrombolysis with alteplase in a patient with hypothenar hammer syndrome but without underlying aneurysm. AB - Hypothenar hammer syndrome is a cause of symptomatic ischemia of the hand secondary to the formation of aneurysm or thrombosis of the ulnar artery in the setting of a complete or incomplete palmar arch. Acute occlusive thrombus or embolus of the hand represents a complex problem that often may require immediate surgical intervention. We report a case of acute unilateral arterial hand ischemia requiring catheter-directed thrombolysis with Alteplase therapy in a patient with acute occlusive arterial thrombosis of the left ulnar artery. A catheter-directed thrombolytic regimen consisted of Alteplase 1 mg/h for 24 h, and heparin was infused through the sheath side arm at a rate of 500 units per hour for resolution of the thrombus and improvement in symptoms. A former truck driver presented with worsening pain and subsequent development of significant cyanosis with early gangrenous changes of the left second and third fingertips. He had significant callous of the hypothenar eminence and reported that his left hand was not only his "driving" hand but also a cane has been used in his left hand to ambulate. Initial angiogram revealed only ulnar artery occlusion at the wrist with reconstitution just distal to the hypothenar eminence. After 24 h of the initiation of thrombolysis, repeat angiography revealed resolution with a widely patent ulnar artery. His symptoms and the color of his digits immediately improved, and within a few months, his hand had normalized. The patient had no clinical sequelae of thrombolytic therapy. Catheter-directed thrombolytic therapy in situations of acute occlusive thrombus of the hand may provide a therapeutic option for patients with suspected hypothenar hammer syndrome. However, thrombolytic therapy carries risk of significant hemorrhagic complications. Before initiating therapy, careful judgment about the possibility for bleeding risk is required. This provides for a minimally invasive alternative to open surgical revascularization especially in the absence of underlying correctable anatomic defect such as aneurysm. PMID- 29326821 TI - Age, Sex, and Gene Expression Score identifies a symptomatic, nondiabetic male patient as being at high risk of obstructive coronary artery disease. AB - In October 2015, a 74-year-old Caucasian male patient (past medical history of hyperlipidemia, paroxysmal atrial fibrillation, hypertension, and hypothyroidism) presented to the cardiologist for follow-up outpatient evaluation of exertional chest pain. The patient had recently been seen at the Emergency Department for the same complaint. At that time, the patient's cardiac markers, EKG, and pharmacological nuclear stress testing were all reported as normal. At presentation to the cardiologist, the patient's physical examination findings were unremarkable. Over the course of the following year, repeat electrocardiograms and myocardial perfusion imaging studies demonstrated no evidence of ischemia. Despite the persistence of symptoms, the patient was reluctant to undergo invasive testing. The cardiologist ordered a simple blood test: the Age, Sex, and Gene Expression Score, which provides the current likelihood of obstructive coronary artery disease in nondiabetic patients. Based on the high Age, Sex, and Gene Expression Score result, the patient underwent invasive coronary angiography and a 98% stenotic lesion in the proximal left anterior descending artery was discovered. A drug-eluting coronary stent was placed and resulted in the complete resolution of the patient's symptoms. PMID- 29326822 TI - Acute myeloid leukemia with KMT2A-SEPT5 translocation: A case report and review of the literature. AB - Chromosomal rearrangement involving the KMT2A gene is one of the most common genetic alteration in acute myeloid leukemia. A total of 135 different KMT2A rearrangements have been identified, where 94 translocation partner genes are now characterized at the molecular level. Of these 94 translocation partner genes, 35 translocation partner genes occur recurrently, but only 9 specific gene fusions account for more than 90% of cases. Translocation of KMT2A with SEPT5 gene at 22q11.2 is rare, with few reported cases in the literature. In this report, we are presenting a case of KMT2A-SEPT5 fusion in de novo acute myeloid leukemia with t(11;22)(q23;q11.2) with a review of the literature. PMID- 29326823 TI - Lichen planus following tetanus-diphtheria-acellular pertussis vaccination: A case report and review of the literature. AB - Lichen planus is an inflammatory dermatosis with a prevalence of approximately 1%. Recent meta-analyses show that patients with hepatitis C virus have a 2.5- to 4.5-fold increased risk of developing lichen planus. Lichen planus has also followed vaccinations and has specifically been attributed to the hepatitis B vaccine, the influenza vaccine, and the tetanus-diphtheria-acellular pertussis vaccine. We describe a case of lichen planus in a hepatitis C virus-infected African American male occurring in temporal association with the administration of the tetanus-diphtheria-acellular pertussis vaccine. The patient's presentation was clinically consistent with lichen planus and confirmed by biopsy. It is likely that many cases of vaccine-induced lichen planus have gone unpublished or unrecognized. In areas with high prevalence of hepatitis C virus infection, we may expect to see more cases of vaccine-induced lichen planus especially in light of the updated Centers for Disease Control and Prevention tetanus-diphtheria acellular pertussis vaccination recommendations. This case serves to educate healthcare providers about vaccine-induced lichen planus and, in particular, the need to counsel hepatitis C virus-infected patients about a potential risk of developing lichen planus following vaccination. We also reflect on current theories suggesting the T-cell-mediated pathogenesis of lichen planus and the role that hepatitis C virus and toxoid or protein vaccines may play in initiating the disease. PMID- 29326824 TI - Secondary multifocal intraocular lens implantation: A novel management strategy for white cataracts. AB - Objectives: This study was designed to analyse the outcomes of secondary multifocal intraocular lens implantation in eyes with white cataracts. Methods: White cataract patients undergoing secondary multifocal intraocular lens implantation between June 2014 and January 2015 were evaluated prospectively. As opposed to a conventional primary intraocular lens implantation for an optimal patient, the white cataract was first extracted, followed by optical biometry measurements. Whether or not the patient had adequate visual acuity was identified, and the multifocal intraocular lens was implanted secondarily. A total of five appropriate white cataract patients were enrolled in this secondary multifocal intraocular lens implantation study and were retrospectively reviewed. Results: All five secondary implantations of the multifocal intraocular lenses were successful, without obvious adverse events. The uncorrected near visual acuity LogMAR was 0.4-0.5, and the distance visual acuity was -0.1 to 0.1 after 12 months of the multifocal intraocular lens implantation. All patients achieved satisfactory near and distance visual acuities and spectacle freedom. Conclusion: Two-stage multifocal intraocular lens implantation is a safe and novel technique for the management of white cataract patients to optimise near and distance visual acuities. PMID- 29326825 TI - Staphylococcal scalded skin syndrome: A pediatric dermatology case report. AB - Staphylococcal scalded skin syndrome is a condition which predominantly affects children and causes a spectrum of skin lesions. We present a case of a 2-month old infant with complaints of fever and fragile blisters over the body. The mucosal areas were spared. The diagnosis of staphylococcal scalded skin syndrome was reached on clinical grounds and culture report. The patient responded well to the treatment, which included an antibiotic (cloxacillin), an analgesic (paracetamol), and hydration with intravenous fluids. He was discharged after 8 days, with almost complete resolution of his skin lesions. Having a high clinical suspicion for staphylococcal scalded skin syndrome, early diagnosis/treatment, and following robust hygiene measures are imperative for the effective management of staphylococcal scalded skin syndrome. More efforts are needed to develop novel therapies for staphylococcal scalded skin syndrome. PMID- 29326826 TI - Collision tumor consisting of a colorectal adenocarcinoma and dissemination of a gastric adenocarcinoma. AB - Background: Collision tumors, composed of histologically distinct tumor types, are rare entities, especially in the colorectum, and corresponding evidence-based clinical management or treatment strategies are poorly defined. This is the first report of a collision tumor composed of two histologically distinct adenocarcinomas. Case presentation: A 78-year-old male showed severe anemia and a 10% body weight loss over 1 month. Preoperative examination revealed T3N1M0 stage IIIA gastric cancer and T3N0M0 stage IIA rectal cancer. Distal gastrectomy and rectectomy with regional lymph node dissection were performed. Immunohistochemistry revealed two distinct adenocarcinomas with gland duct structures - a colorectal adenocarcinoma and a disseminated gastric adenocarcinoma - that had collided to form an invasive tumor on the serosal surface of the anterior rectum wall. Conclusion: This extremely rare case of a collision tumor supports that precise immunohistochemical identification of all tumor components is needed for guiding decisions affecting overall prognosis, adjuvant treatment and survival. PMID- 29326827 TI - Premature Ventricular Contraction-induced Cardiomyopathy. AB - Premature ventricular contractions (PVCs) are very common and usually do not require treatment. However, in the clinical setting of troublesome symptoms, or when PVCs trigger polymorphic ventricular tachycardia or cause cardiomyopathy, proper treatment is critical. In this review, the clinical syndrome of PVC induced cardiomyopathy, including risk factors for development and treatment, is discussed. Although PVC-induced cardiomyopathy is typically associated with frequent PVCs there are also patients with this burden that do not develop cardiomyopathy, suggesting a differential susceptibility. Treatment often consists of catheter ablation, although antiarrhythmic medications may also provide both reduction in PVC frequency and resolution of left ventricular dysfunction. PMID- 29326828 TI - Cryoballoon Ablation in Today's Practice: Can the Left Common Ostium Be Ablated and Injury to the Right Phrenic Nerve Avoided? AB - Cryoballoon ablation is rapidly gaining popularity among electrophysiologists in the setting of pulmonary vein isolation for the treatment of AF. The first part of the following review focuses on the feasibility and clinical outcome of this technique in patients exhibiting a left common ostium. In the second part, we discuss how to predict and prevent the most common complication related to cryoballoon ablation: right phrenic nerve palsy. PMID- 29326829 TI - Choice of Ventricular Pacing Site: the End of Non-physiological, Apical Ventricular Pacing? PMID- 29326830 TI - Optimum Risk Assessment for Stroke in Atrial Fibrillation: Should We Hold the Status Quo or Consider Magnitude Synergism and Left Atrial Appendage Anatomy? AB - Thromboembolic stroke and systemic embolism are generally agreed to be the major morbidity/mortality concerns for patients with AF. However, the risk of thromboembolism is not the same for all AF patients. Both AF and comorbidities must interact synergistically to create the risk for thromboembolism. But, is the synergism dichotomous - AF present or absent, comorbid disorder present or absent - or does synergism have magnitude, depending on the number and severity of the associated disorders and the amount of time one is in AF? This review discusses the current risk-score contributors and options for assessing risk of thromboembolism in AF patients, and what their combined roles might be. Also covered is the consideration of left atrial appendage anatomy in this context. PMID- 29326831 TI - Management of Complications in Anticoagulated Patients with Atrial Fibrillation. AB - Oral anticoagulation is mandatory for patients at high risk of thromboembolism, but the risk of bleeding should also be taken into account. Direct oral anticoagulants are now recommended for non-valvular AF as a potential alternative to warfarin. In this article we discuss methods to assess the anticoagulant effect of these agents, specific and general antidotes, and management of complications such as embolic and haemorrhagic stroke, and significant bleeding. PMID- 29326832 TI - At the Atrioventricular Crossroads: Dual Pathway Electrophysiology in the Atrioventricular Node and its Underlying Heterogeneities. AB - The atrioventricular node (AVN) is a complex structure that performs a variety of functions in the heart. The AVN is primarily an electrical gatekeeper between the atria and ventricles and introduces a delay between atrial and ventricular excitation, allowing for efficient ventricular filling. The AVN is composed of several compartments that safely transmit electrical excitation from the atria to the ventricles via the fast or slow pathways. There are many electrophysiological differences between these pathways, including conduction time and electrical refractoriness, that increase the predisposition of the atrioventricular junction to arrhythmias such as atrioventricular nodal re-entrant tachycardia. These varied electrophysiological characteristics of the fast and slow pathways stem from their unique structural and molecular composition (tissue and cellular geometry, ion channels and gap junctions). This review summarises the structural and molecular heterogeneities of the human AVN and how they result in electrophysiological variations and arrhythmias. PMID- 29326833 TI - Ganglionated Plexi Ablation: Physiology and Clinical Applications. AB - Ganglionated plexi (GP), consisting of conglomerations of autonomic ganglia on the epicardial surface of the heart, have been shown to play a significant role in different arrhythmias, including atrial fibrillation. GP ablation has become an adjunctive procedure in the treatment of atrial fibrillation, while it has been used successfully in preliminary studies in vasovagal syncope. This review will present the current data on the physiology and clinical applications of GP ablation in the treatment of atrial fibrillation and other diseases. PMID- 29326834 TI - Ablation of Atrial Fibrillation in Patients with Congenital Heart Disease. AB - With improved surgical techniques and medical management for patients with congenital heart diseases, more patients are living longer and well into adulthood. This improved survival comes with a price of increased morbidity, mainly secondary to increased risk of tachyarrhythmias. One of the major arrhythmias commonly encountered in this subset of cardiac patients is AF. Similar to the general population, the risk of AF increases with advancing age, and is mainly secondary to the abnormal anatomy, abnormal pressure and volume parameters in the hearts of these patients and to the increased scarring and inflammation seen in the left atrium following multiple surgical procedures. Catheter ablation for AF has been shown to be a very effective treatment modality in patients with refractory AF. However, data and guidelines regarding catheter ablation in patients with congenital heart disease are not well established. This review will shed light on the procedural techniques, success rates and complications of AF catheter ablation in patients with different types of CHD, including atrial septal defects, tetralogy of Fallot, persistent left superior vena cava, heterotaxy syndrome and atrial isomerism, and Ebstein anomaly. PMID- 29326835 TI - Ablation of Atrial Fibrillation Drivers. AB - Pulmonary vein isolation (PVI) is central to ablation approaches for atrial fibrillation (AF), yet many patients still have arrhythmia recurrence after one or more procedures, despite evolving technologies for PVI. Ablation of localised AF drivers, which lie outside the pulmonary veins in many patients, is a practical approach that has been shown to improve success by many groups. Such localised drivers lie in atrial regions shown mechanistically to sustain AF in optical mapping and clinical studies of human AF, as well as computational and animal studies. Clinical studies now verify rotational activation by multiple mapping approaches in the same patients, at sites where ablation terminates persistent AF. This review article provides a mechanistic and clinical rationale to ablate localised drivers, and describes successful techniques for their ablation as well as pitfalls to avoid, which may explain discrepancies between results from some centres. We hope that this review will serve as a platform for future improvements in the patient-tailored ablation for complex arrhythmias. PMID- 29326836 TI - Minimally Invasive Epicardial Surgical Ablation Alone Versus Hybrid Ablation for Atrial Fibrillation: A Systematic Review and Meta-Analysis. AB - Maintaining sinus rhythm in patients with non-paroxysmal AF is an elusive goal. Some suggest that hybrid ablation, combining minimally invasive epicardial surgical ablation with endocardial catheter ablation, may be more effective than either modality alone. However, randomised trials are lacking. We investigated whether hybrid ablation is more effective than epicardial ablation alone at preventing recurrent AF by performing a systematic review and meta-analysis. The review was prospectively registered with PROSPERO (CRD42016043389). MEDLINE and EMBASE were searched for studies of standalone minimally invasive epicardial ablation of AF and/or hybrid ablation, identifying 41 non-overlapping studies comprising 2737 patients. A random-effects meta-analysis, meta-regression and sensitivity analysis were performed. Single-procedure survival free from atrial arrhythmias without antiarrhythmic drugs was similar between epicardial-alone and hybrid approaches at 12 months (epicardial alone 71.5 %; [95 % CI 66.1-76.9], hybrid 63.2 %; [95 % CI 51.5-75.0]) and 24 months (epicardial alone 68.5 %; [95 % CI 57.7-79.3], hybrid 57.0 %; [95 % CI 33.6-80.4]). Freedom from atrial arrhythmias with AADs and rates of unplanned additional catheter ablations were also similar between groups. Major complications occurred more often with hybrid ablation (epicardial alone 2.9 %; [95 % CI 1.9-3.9], hybrid 7.3 %; [95 % CI 4.2 10.5]). Meta-regression suggested that bipolar radiofrequency energy and thoracoscopic access were associated with greater efficacy, but adjusting for these factors did not unmask any difference between epicardial-alone and hybrid ablation. Hybrid and epicardial ablation alone appear to be equally effective treatments for AF, although hybrid ablation may be associated with higher complication rates. These data derived from observational studies should be verified with randomised data. PMID- 29326837 TI - One-stage Approach for Hybrid Atrial Fibrillation Treatment. AB - The one-stage approach for hybrid atrial fibrillation involves the simultaneous and close cooperation of different medical specialties. This review attempts to describe its challenging issues, exposing a plan to balance thrombotic risk and bleeding risk. It describes the combined surgical-electrophysiological procedure. Specific topics, involving hemodynamic, fluid and respiratory management during surgery are considered, and problems related to postoperative pain are surveyed. PMID- 29326838 TI - Increasing the Single-Procedure Success Rate of Pulmonary Vein Isolation. AB - To improve the single-procedural success and long-term outcomes of catheter ablation techniques for AF, there is a need for durable, contiguous and transmural lesions encircling the pulmonary veins (PV). Measurement of contact force (CF) between the catheter tip and the target tissue can optimise ablation procedures. A new approach to obtain single-procedure durable PV isolation (PVI) using the latest CF technology combined with the CARTO VISITAGTM Module with Ablation Index (Biosense Webster) has been shown in small studies to almost eliminate recurrence of paroxysmal AF at 1-year follow up and to make PVI procedures more reproducible. The use of a standardised workflow is expected to increase the reproducibility of results and to increase the efficiency of PVI procedures. PMID- 29326839 TI - Can We Select Patients for Prophylactic VT Ablation? PMID- 29326840 TI - Reproductive gene expression in a coral reef fish exposed to increasing temperature across generations. AB - Reproduction in marine fish is generally tightly linked with water temperature. Consequently, when adults are exposed to projected future ocean temperatures, reproductive output of many species declines precipitously. Recent research has shown that in the common reef fish, Acanthochromis polyacanthus, step-wise exposure to higher temperatures over two generations (parents: +1.5 degrees C, offspring: +3.0 degrees C) can improve reproductive output in the F2 generation compared to F2 fish that have experienced the same high temperatures over two generations (F1 parents: +3.0 degrees C, F2 offspring: +3.0 degrees C). To investigate how a step-wise increase in temperature between generations improved reproductive capacity, we tested the expression of well-known teleost reproductive genes in the brain and gonads of F2 fish using quantitative reverse transcription PCR and compared it among control (+0.0 degrees C for two generations), developmental (+3.0 degrees C in second generation only), step (+1.5 degrees C in first generation and +3.0 degrees C in second generation), and transgenerational (+3.0 degrees C for two generations) treatments. We found that levels of gonadotropin receptor gene expression (Fshr and Lhcgr) in the testes were reduced in developmental and transgenerational temperature treatments, but were similar to control levels in the step treatment. This suggests Fshr and Lhcgr may be involved in regulating male reproductive capacity in A. polyacanthus. In addition, lower Fshb expression in the brain of females in all temperature treatments compared to control, suggests that Fshb expression, which is involved in vitellogenesis, is sensitive to high temperatures. Our results help elucidate key genes that facilitate successful reproduction in reef fishes when they experience a gradual increase in temperature across generations consistent with the trajectory of climate change. PMID- 29326841 TI - It is not just menopause: symptom clustering in the Study of Women's Health Across the Nation. AB - Background: Patterns of symptom clustering in midlife women may suggest common underlying mechanisms or may identify women at risk of adverse health outcomes or, conversely, likely to experience healthy aging. This paper assesses symptom clustering in the Study of Women's Health Across the Nation (SWAN) longitudinally by stage of reproductive aging and estimates the probability of women experiencing specific symptom clusters. We also evaluate factors that influence the likelihood of specific symptom clusters and assess whether symptom clustering is associated with women's self-reported health status. Methods: This analysis includes 3289 participants in the multiethnic SWAN cohort who provided information on 58 symptoms reflecting a broad range of physical, psychological and menopausal symptoms at baseline and 7 follow-up visits over 16 years. We conducted latent transition analyses to assess symptom clustering and to model symptomatology across the menopausal transition (pre, early peri-, late peri- and post-menopausal). Joint multinomial logistic regression models were used to identify demographic characteristics associated with premenopausal latent class membership. A partial proportional odds regression model was used to assess the association between latent class membership and self-reported health status. Results: We identified six latent classes that ranged from highly symptomatic (LC1) across most measured symptoms, to moderately symptomatic across most measured symptoms (LC2), to moderately symptomatic for a subset of symptoms (vasomotor symptoms, pain, fatigue, sleep disturbances and physical health symptoms) (LC3 and LC5) with one class (LC3) including interference in life activities because of physical health symptoms, to numerous milder symptoms, dominated by fatigue and psychological symptoms (LC4), to relatively asymptomatic (LC6). In pre-menopause, 10% of women were classified in LC1, 16% in LC2, 14% in LC3 and LC4, 26% in LC5, and 20% in LC6. Intensity of vasomotor and urogenital symptoms as well as sexual desire) differed minimally by latent class. Classification into the two most symptomatic classes was strongly associated with financial strain, White race/ethnicity, obesity and smoking status. Over time, women were most likely to remain within the same latent class as they transitioned through menopause stages (range 39-76%), although some women worsened or improved. The probability of moving between classes did not differ substantially by menopausal stage. Women in the highly symptomatic classes more frequently rated their health as fair to poor compared to women in the least symptomatic class. Conclusion: Clear patterns of symptom clustering were present early in midlife, tended to be stable over time, and were strongly associated with self-perceived health. Notably, vasomotor symptoms tended to cluster with sleep disturbances and fatigue, were present in each of the moderate to highly symptomatic classes, but were not a defining characteristic of the symptom clusters. Clustering of midlife women by symptoms may suggest common underlying mechanisms amenable to interventions. Given that one-quarter of midlife women were highly or moderately symptomatic across all domains in the pre-menopause, addressing symptom burden in early midlife is likely critical to ameliorating risk in the most vulnerable populations. PMID- 29326842 TI - Barriers to Peritoneal Dialysis in Aboriginal Patients. AB - Background: Aboriginal people in Canada have an unduly high burden of end-stage kidney disease (ESKD) and many live in rural settings. Peritoneal dialysis (PD) is a home-based dialysis modality that may provide a valuable alternative to in center hemodialysis which is relatively underutilized by the Aboriginal population. Objective: We aim to assess the barriers to PD utilization in Aboriginal patients with ESKD. Design: This article is a prospective observational cohort study. Setting: The setting involves 3 predialysis clinics in Winnipeg, Kingston, and Moose Factory. Patients: The patients were 99 individuals (67 non-Aboriginal and 32 Aboriginal) who were at least 18 years of age with an estimated glomerular filtration rate of less than 30 mL/min/1.73m2, and were enrolled in one of the 3 study sites from April 2011 to October 2013. Measurements: Patient demographics and comorbidities were documented. Barriers to PD, PD as modality choice, and Aboriginal status were assessed via patient survey upon study enrollment. PD use as the initial dialysis modality was assessed via monthly patient follow-up for 1 year after enrollment in the study. Methods: The patient survey was created based on literature review of known barriers to PD, repaired based on direct patient feedback, and tested for reliability via the test-retest method. Differences in PD choice, barriers to PD, and PD use between Aboriginal and non-Aboriginal patients were determined by chi-square test and logistic regression. Results: All patients enrolled in the study completed the survey. Mean age was 65.5 versus 54.6 years for non-Aboriginals and Aboriginals, respectively. Barriers to PD significantly associated with Aboriginal status were lack of money (odds ratio [OR]: 21.3; 95% confidence interval [CI]: 5.3-86.4; P < .0001) and anxiety (OR: 2.8; 95% CI: 1.1-7.1; P = .03). There was no difference in PD choice between non-Aboriginals and Aboriginals (66.7% vs 68.8%, respectively; P = .83). One of 67 non-Aboriginals (1.5%) and 5 of 32 Aboriginals (15.6%) died prior to initiating dialysis (P = .013). No significant difference was observed between non-Aboriginals (33%) and Aboriginals (28%) in use of PD (P = .81). Limitations: Small sample size was a limitation of this study. Conclusions: Aboriginal people in Canada have a disproportionately large burden of ESKD, and PD could provide an alternative to in-center hemodialysis for those living in rural areas. Our study identified anxiety and lack of money as barriers to PD significantly associated with Aboriginal status. When choosing dialysis modality, shared decision making between physicians and patient is of key importance to weigh all potential benefits and risks and emphasize the Aboriginal patient's values and preferences. These results can be used to guide future research and to help devise interventions targeting barriers to PD in Aboriginals. PMID- 29326843 TI - Risk of Acute Kidney Injury in Patients Randomized to a Restrictive Versus Liberal Approach to Red Blood Cell Transfusion in Cardiac Surgery: A Substudy Protocol of the Transfusion Requirements in Cardiac Surgery III Noninferiority Trial. AB - Background: When safe to do so, avoiding blood transfusions in cardiac surgery can avoid the risk of transfusion-related infections and other complications while protecting a scarce resource and reducing costs. This protocol describes a kidney substudy of the Transfusion Requirements in Cardiac Surgery III (TRICS III) trial, a multinational noninferiority randomized controlled trial to determine whether the risk of major clinical outcomes in patients undergoing planned cardiac surgery with cardiopulmonary bypass is no greater with a restrictive versus liberal approach to red blood cell transfusion. Objective: The objective of this substudy is to determine whether the risk of acute kidney injury is no greater with a restrictive versus liberal approach to red blood cell transfusion, and whether this holds true in patients with and without preexisting chronic kidney disease. Design and Setting: Multinational noninferiority randomized controlled trial conducted in 73 centers in 19 countries (2014-2017). Patients: Patients (~4800) undergoing planned cardiac surgery with cardiopulmonary bypass. Measurements: The primary outcome of this substudy is perioperative acute kidney injury, defined as an acute rise in serum creatinine from the preoperative value (obtained in the 30-day period before surgery), where an acute rise is defined as >=26.5 MUmol/L in the first 48 hours after surgery or >=50% in the first 7 days after surgery. Methods: We will report the absolute risk difference in acute kidney injury and the 95% confidence interval. We will repeat the primary analysis using alternative definitions of acute kidney injury, including staging definitions, and will examine effect modification by preexisting chronic kidney disease (defined as a preoperative estimated glomerular filtration rate [eGFR] <60 mL/min/1.73 m2). Limitations: It is not possible to blind patients or providers to the intervention; however, objective measures will be used to assess outcomes, and outcome assessors will be blinded to the intervention assignment. Results: Substudy results will be reported by the year 2018. Conclusions: This substudy will provide generalizable estimates of the risk of acute kidney injury of a restrictive versus liberal approach to red blood cell transfusion in the presence of anemia during cardiac surgery done with cardiopulmonary bypass. Trial Registration: www.clinicaltrials.gov; clinical trial registration number NCT 02042898. PMID- 29326845 TI - Tuberculosis Test Usage and Medical Expenditures from Outpatient Insurance Claims Data, 2013. AB - Objective: To evaluate TB test usage and associated direct medical expenditures from 2013 private insurance claims data in the United States (US). Methods: We extracted outpatient claims for TB-specific and nonspecific tests from the 2013 MarketScan(r) commercial database. We estimated average expenditures (adjusted for claim and patient characteristics) using semilog regression analyses and compared them to the Centers for Medicare and Medicaid Services (CMS) national reimbursement limits. Results: Among the TB-specific tests, 1.4% of the enrollees had at least one claim, of which the tuberculin skin test was most common (86%) and least expensive ($9). The T-SPOT(r) was the most expensive among the TB specific tests ($106). Among nonspecific TB tests, the chest radiograph was the most used test (78%), while chest computerized tomography was the most expensive ($251). Adjusted average expenditures for the majority of tests (~74%) were above CMS limits. We estimated that total United States medical expenditures for the employer-based privately insured population for TB-specific tests were $53.0 million in 2013, of which enrollees paid 17% ($9 million). Conclusions: We found substantial differences in TB test usage and expenditures. Additionally, employer based private insurers and enrollees paid more than CMS limits for most TB tests. PMID- 29326846 TI - The Protective Effect of Sesamol in the Selenite-induced Experimental Cataract Model. AB - Objectives: To investigate the potential protective effects of sesamol in an experimental cataract model. Materials and Methods: Twenty-one Spraque Dawley rat pups were randomly assigned into three groups, seven rats in each. All the rats except for those in the control group were injected subcutaneously with a single dose of sodium selenite on postpartum day 9. On days 10-14, rats in the sham group were intraperitoneally administered 50 mg/kg/day saline solution, while rats in the sesamol group were given 50 mg/kg/day sesamol by the same route. Following cataract grading, the lenses and capsules were extracted and the mean levels of reduced glutathione (GSH), malondialdehyde (MDA), total antioxidant status (TAS) and total oxidant status (TOS) in lens supernatants were biochemically analyzed. Results: The control group did not show any development of cataract. It was found that the mean cataract grade in the sesamol group was significantly lower than that of the sham group (p<0.05). The mean GSH level and TAS in the sesamol group were significantly higher than those of the sham group while the mean TOS and MDA level in the sesamol group were significantly lower than those of the sham group (p<0.05). Conclusion: Our study shows that sesamol reduces TOS and MDA level and increases TAS and GSH level in the lens and inhibits cataract formation. PMID- 29326847 TI - Corneal, Scleral, Choroidal, and Foveal Thickness in Patients with Rheumatoid Arthritis. AB - Objectives: To investigate corneal, scleral, choroidal, and foveal thicknesses in female patients with rheumatoid arthritis (RA) and compare them with healthy subjects. Materials and Methods: This prospective study included consecutive female patients diagnosed with RA and healthy subjects. Corneal, scleral, choroidal, and retinal (foveal) thicknesses were obtained by using optical coherence tomography and a comparison was performed between groups for all outcome measures. Results: Thirty-six eyes of 36 female patients diagnosed with RA (group 1) and 36 eyes of 36 healthy female volunteers (group 2) were included. Mean corneal, scleral, choroidal thicknesses and retinal thickness at the fovea of group 1 were 543.3+/-33.7 um, 343.7+/-42.2 um, 214.6+/-50, and 213.5+/-18.9 um, respectively; in group 2, these values were 549.9+/-29.6 MUm, 420.9+/-42.4 MUm, 206.4+/-41.9 MUm, and 222+/-15.5 MUm, respectively. The comparison between group 1 and 2 with respect to corneal, choroidal, and foveal thicknesses did not reveal statistical significant differences (p>0.05). On the contrary, there was a statistically significant difference with respect to scleral thickness between the groups, with the RA patients demonstrating a thinner scleral layer (p<0.001). Conclusion: Female patients with RA seem to demonstrate statistically significant scleral thinning when compared with healthy subjects, while there was no difference concerning corneal, choroidal, and foveal thickness. PMID- 29326844 TI - Biology of premature ageing in survivors of cancer. AB - Over 30 million cancer survivors exist worldwide. Survivors have an earlier onset and higher incidence of chronic comorbidities, including endocrinopathies, cardiac dysfunction, osteoporosis, pulmonary fibrosis, secondary cancers and frailty than the general population; however, the fundamental basis of these changes at the cellular level is unknown. An electronic search was performed on Embase, Medline In-Process & Other Non-Indexed Citations, and the Cochrane Central Register of Controlled Trials. Original articles addressing the cellular biology of ageing and/or the mechanisms of cancer therapies similar to ageing mechanisms were included, and references of these articles were reviewed for further search. We found multiple biological process of ageing at the cellular level and their association with cancer therapies, as well as with clinical effects. The direct effects of various chemotherapies and radiation on telomere length, senescent cells, epigenetic modifications and microRNA were found. We review the effects of cancer therapies on recognised hallmarks of ageing. Long term comorbidities seen in cancer survivors mimic the phenotypes of ageing and likely result from the interaction between therapeutic exposures and the underlying biology of ageing. Long-term follow-up of cancer survivors and research on prevention strategies should be pursued to increase the length and quality of life among the growing population of cancer survivors. PMID- 29326848 TI - The Knowledge of Eye Physicians on Local Anesthetic Toxicity and Intravenous Lipid Treatment: Questionnaire Study. AB - Objectives: To evaluate the knowledge of ophthalmologists regarding local anesthesia toxicity syndrome (LATS) and intravenous lipid emulsion used in treatment, and to raise awareness of this issue. Materials and Methods: A questionnaire comprising 14 questions about demographics, local anesthesia (LA) use, toxicity, and treatment methods was administered to ophthalmologists at different hospitals. Results: The study included 104 ophthalmologists (25% residents, 67.3% specialists, 7.7% faculty members) with a mean age of 35.71+/ 6.53 years. The highest number of participants was from state hospitals (65.4%), and 34.6% of the physicians had been working in ophthalmology for more than 10 years. Seventy-six percent of the participants reported using LA every day or more than twice a week, but 56.7% had received no specific training on this subject. No statistically significant difference was observed between different education levels and the rates of training (p=0.419). Bupivacaine was the most preferred LA and the majority of respondents (97.1%) did not use a test dose. Allergy (76%) and hypotension (68.3%) were the most common responses for early findings of LATS, while cardiac arrest (57.4%) and hepatotoxicity (56.4%) were given for late findings. The most common responses concerning the prevention of LATS included monitorization (72.4%) and use of appropriate doses (58.2%). Symptomatic treatment was selected by 72.4% of respondents and cardiopulmonary resuscitation and antihistamine treatment by 58.8%. Of the ophthalmologists in the study, 62.5% had never encountered LATS. The use of 20% intravenous lipid emulsion therapy for toxicity was known by 65% of the physicians, but only 1 participant stated having used it previously. Conclusion: The importance of using 20% lipid emulsion in LATS treatment and having it available where LA is administered must be emphasized, and there should be compulsory training programs for ophthalmologists on this subject. PMID- 29326849 TI - Spectral Domain Optical Coherence Tomography Findings in Carotid Artery Disease. AB - Objectives: To evaluate the effect of carotid artery disease on retinal morphology by means of spectral domain optical coherence tomography (SD-OCT). Materials and Methods: We examined 23 eyes with internal carotid artery (ICA) stenosis and 24 age- and gender-matched healthy eyes as a control group in this prospective, case-control study. Compherensive ophthalmic examination and SD-OCT scan were performed to all the patients. The average RNFL and macular thicknesses (MT) in the nine macular ETDRS areas were the major OCT measurements for our study. Results: Although all of the average RNFL and MT measurements were lower in the ICA stenosis group, only the total MT and outer ETDRS area (temporal/superior/nasal/inferior outer macula) values were found to be significantly thinner compared to the control group (p=0.004, p=0.009, p<0.001, p=0.002, and p=0.001, respectively). Conclusion: In addition to our knowledge about the effects of ICA stenosis on the retino-choroidal circulation, we found that OCT measurements may be beneficial in the early detection of ocular damage due to ICA stenosis. PMID- 29326850 TI - The Efficacy and Safety of Intravitreal Dexamethasone Implant for the Treatment of Macular Edema Related to Retinal Vein Occlusion: Real-life Data and Prognostic Factors in a Turkish Population. AB - Objectives: To evaluate the efficacy and safety of dexamethasone (DEX) implants as mono or combination therapy for macular edema in retinal vein occlusion (RVO) with real-life conditions, and to detect factors that influence final visual acuity. Materials and Methods: Twenty-five eyes with macular edema secondary to RVO underwent assessments for central macular thickness (CMT), best-corrected visual acuity (BCVA), adverse events, and also morphologic changes in optical coherence tomography at an interval of 4-8 weeks after at least one DEX implant. Results: Seventeen eyes with branch RVO and 8 eyes with central RVO were eligible for the study. The mean follow-up duration was 17 months (range, 12-26 months). Both mean BCVA (p=0.009) and CMT (p=0.006) improved significantly, and visual gains of >=3 lines were achieved in 32% and >=2 lines in 52% at the end of the follow-up period. The most powerful individual predictor of final visual acuity was baseline BCVA (r2=0.611, p<0.001, stepwise multiple regression), but the most efficient model was the combination of the ellipsoid zone (EZ) integrity and baseline BCVA (r2=0.766, p<0.001, stepwise multiple regression). Complication rates were very low after repeated DEX implants. Conclusion: DEX implant seems to be an effective and safe treatment for macular edema in RVO despite negative real life factors, and visual outcomes are associated with baseline visual acuity and EZ integrity. PMID- 29326852 TI - Unusual Course of Crystalline Keratopathy in a Patient with Graft-Versus-Host Disease. AB - We present a case of infectious crystalline keratopathy in a patient with Graft versus-Host disease (GVHD) who developed satellite fungal keratitis. A 51-year old man was referred for bilateral total persistent corneal epithelial defects with severe dry eye. Although persistent epithelial defect healed with medical therapy, he developed stromal keratitis with satellite lesions confirmed to be secondary to Candida albicans. After three months of antifungal treatment and debridement, improvement of the infiltrates was obtained. Crystalline keratopathy is an important clinical entity which may develop due to several causes. The microbial causes include not only bacteria but fungi as well. Careful investigation must be performed, especially for immune-compromised patients, in order to provide appropriate and timely treatment. PMID- 29326851 TI - Recent Advancements in Gene Therapy for Hereditary Retinal Dystrophies. AB - Hereditary retinal dystrophies (HRDs) are degenerative diseases of the retina which have marked clinical and genetic heterogeneity. Common presentations among these disorders include night or colour blindness, tunnel vision, and subsequent progression to complete blindness. The known causative disease genes have a variety of developmental and functional roles, with mutations in more than 120 genes shown to be responsible for the phenotypes. In addition, mutations within the same gene have been shown to cause different disease phenotypes, even amongst affected individuals within the same family, highlighting further levels of complexity. The known disease genes encode proteins involved in retinal cellular structures, phototransduction, the visual cycle, and photoreceptor structure or gene regulation. Significant advancements have been made in understanding the genetic pathogenesis of ocular diseases, and gene replacement and gene silencing have been proposed as potentially efficacious therapies. Because of its favorable anatomical and immunological characteristics, the eye has been at the forefront of translational gene therapy. Recent improvements have been made in the safety and specificity of vector-based ocular gene transfer methods. Dozens of promising proofs of concept have been obtained in animal models of HRDs and some of them have been relayed to the clinic. The results from the first clinical trials for a congenital form of blindness have generated great interest and have demonstrated the safety and efficacy of intraocular administrations of viral vectors in humans. This review summarizes the clinical development of retinal gene therapy. PMID- 29326853 TI - Purtscher-Like Retinopathy Associated with Atypical Hemolytic Uremic Syndrome. AB - A 25-year-old woman presented with acute bilateral blurred vision and history of headache, dizziness, and syncope for three days. Her visual acuity was 20/60 in both eyes. Fundoscopy revealed multiple bilateral peripapillary yellow-white patches like cotton wool spots, intraretinal hemorrhages and macular edema. The patient was diagnosed with Purtscher-like retinopathy based on the retinal findings and lack of trauma history. She was urgently admitted to the nephrology clinic due to thrombotic microangiopathy findings (hemoglobinemia, thrombocytopenia, and acute renal failure). After excluding thrombotic microangiopathy, the patient was diagnosed with atypical hemolytic uremic syndrome (aHUS) with the clinical and laboratory findings. Eculizumab treatment was added to hemodialysis and plasmapheresis therapy. Three months after starting treatment, retinal lesions regressed and visual acuity increased to 20/20 in both eyes. To the best of our knowledge, this is the first reported case of Purtscher like retinopathy associated with aHUS. PMID- 29326854 TI - Macular Buckling Surgery for Retinal Detachment Associated with Macular Hole in High Myopia Eye. AB - A 68-year-old woman presented to our clinic with a 1-month history of central scotoma and visual loss in her right eye. The best corrected visual acuity (BCVA) was hand motion in her right eye. Fundus examination showed myopic chorioretinal degeneration in association with posterior staphyloma and the retina was slightly elevated throughout the macula. Optical coherence tomography (OCT) revealed retinal detachment involving the posterior pole with a macular hole and staphyloma. The patient underwent pars plana vitrectomy, internal limiting membrane peeling, macular buckling, and perfluoropropane gas tamponade. At 3 month follow-up, her BCVA was improved to counting fingers at 1 meter and flattened retina with closed macular hole was observed by OCT. Myopic macular hole with retinal detachment associated with posterior staphyloma represent a challenge regarding their management and several surgical techniques have been described. Although satisfactory anatomical improvement is achieved in these eyes after surgery, the visual acuity outcomes may be poorer than expected due to the chorioretinal atrophy at the posterior pole. PMID- 29326855 TI - All Types of Age-related Macular Degeneration in One Patient. AB - Herein, we describe a neovascular age-related macular degeneration patient with retinal angiomatous proliferation (RAP) and polypoidal choroidal vasculopathy (PCV) coexisting in the same eye at the time of diagnosis. A 55-year-old woman presented with a history of decreased vision in her left eye. Fundoscopy, fluorescein and indocyanine green angiography, and optical coherence tomography imaging revealed RAP and PCV lesions in her left eye at first diagnosis. The patient received intravitreal ranibizumab therapy but developed tachyphylaxis after the first dose despite having three monthly doses. Switching to intravitreal aflibercept injection in our case resulted in anatomic and functional improvement. PMID- 29326856 TI - Using Small Case-Based Learning Groups as a Setting for Teaching Medical Students How to Provide and Receive Peer Feedback. AB - As future physicians, nearly all medical students will be required to provide face-to-face feedback. Moreover, receiving high quality feedback from multiple perspectives is particularly valuable during the pre-clerkship training period. To address these needs, we developed a straightforward, easy to implement exercise that affords students the opportunity to practice giving and receiving feedback with peers. We describe how this exercise has been tailored to fit within the case-based learning small groups of our first-year curriculum and how to enhance the activity by weaving the basic principles of quality feedback into preparation sessions. This exercise has been valued greatly by students. PMID- 29326858 TI - Improving Management of Paediatric Buckle Fracture in Orthopaedic Outpatients: A Completed Audit Loop. AB - Introduction Paediatric patient bone fractures are the source of a large number of orthopaedic outpatient visits, especially for fracture clinics. The National Institute for Health and Care Excellence (NICE) guideline NG38 provides guidance on assessing and managing non-complex fractures, such as buckle (i.e., torus) fractures in paediatric patients. Objective We retrospectively audited outpatient records of children younger than 12 years presenting with distal radius buckle fractures for May and June 2017. We compared our practice against the NICE guideline standards. We made certain changes in our practice and then repeated the exercise prospectively for two months from July 15 to September 15, 2017. Material and Methods We identified 31 patients who fit our inclusion criteria. After instituting changes based on the NICE guidelines, the number of children included in the prospective data collection was 33 patients. Results For the 31 children treated according to our older protocol, we had 59 outpatient visits, with an average of 1.90 visits for every child. After the NICE-driven changes were made to our management, 33 patients were treated in 39 visits with an average of 1.2 visits per child. Conclusion Introducing NICE guidelines allowed for considerable improvement in the management and treatment of paediatric patient bone fractures. It is important to fully implement the NICE guidelines not only in fracture clinics but also in other departments, such as accident and emergency departments. PMID- 29326857 TI - Role of Color Doppler Flowmetry in Prediction of Intrauterine Growth Retardation in High-Risk Pregnancy. AB - OBJECTIVE: To evaluate the usefulness of Color Doppler flowmetry in the prediction of intrauterine growth restriction (IUGR) in high-risk pregnancies. MATERIALS AND METHOD: A total of 62 high-risk pregnant women underwent Color Doppler flowmetric umbilical artery pulsatility index (PI), resistive index (RI) and systolic/diastolic (S/D) ratio, middle cerebral artery PI, RI and S/D ratio, Ductus venosus S-wave/isovolumetric A-wave index (SIA) and vertebral artery RI at 23-27 weeks, 28-32 weeks and 32-36 weeks of their pregnancy. Cerebral-umbilical C/U PI, RI and S/D were evaluated at the third visit. All the pregnancies were followed up till delivery. Ponderal index <10 was considered to be indicative of IUGR. Data were analyzed using IBM Statistical Package for Social Sciences (SPSS) 21.0. RESULTS: Thirty-nine (62.9%) deliveries were IUGR. On all the three visits, umbilical artery, mean PI, RI and SD values were significantly higher while MCA PI, RI and SD values were significantly lower in IUGR as compared to non-IUGR cases. Third visit C/U PI, RI and SD ratio values were also significantly lower in IUGR as compared to non-IUGR cases. Ductus venosus SIA values did not show a significant difference between IUGR and non-IUGR groups. The vertebral artery resistive index was significantly higher in non-IUGR as compared to IUGR on all the visits. Umbilical artery PI was the most sensitive and specific for the prediction of IUGR at all the three visits, with the maximum sensitivity and specificity at the third visit (82.1% and 87%). Third visit C/U PI was most sensitive (82.1%) and specific (96.7%) for the prediction of IUGR. CONCLUSION: This showed that Doppler flowmetry is a useful method for the prediction of IUGR in high-risk pregnancies. PMID- 29326859 TI - Severe Hyponatremia Presenting with Minimal Symptoms. AB - Hyponatremia is a common electrolyte abnormality, however, encountering a patient with serum sodium level below 100 mEq/L and minimal symptoms is unusual. We present the case of an 86-year-old woman who was found to have serum sodium levels of 99 mEq/L. Her only complaint was difficulty in walking. On admission, and throughout her hospital stay, she did not have altered mental status, focal neurological deficits, or adverse outcomes. Her history, blood work, and urine studies pointed towards a diagnosis of thiazide-associated hyponatremia. Thiazide associated hyponatremia can occur at any time during the course of thiazide administration. The first step that should be taken to manage this condition is discontinuing the medication. The lesson learned from this case is that the degree of hyponatremia does not always correlate with the severity of symptoms. PMID- 29326860 TI - Retroperitoneal Mass Masquerading as Failure to Thrive in a 91-year-old Woman. AB - Failure to thrive (FTT) is a state of overall decline. Patients often present with weight loss, poor appetite, malnutrition, and decreased physical functioning. The etiology is multifactorial including chronic diseases, functional impairments, and acute illnesses. Evaluation for reversible causes is paramount, and treatment is aimed at maintaining or improving functional status. We present a case of a 91-year-old woman with a retroperitoneal mass that was found on workup for failure to thrive. PMID- 29326861 TI - Brentuximab vedotin related bilateral Purtscher-like retinopathy unresponsive to pulse steroid therapy and intravitreal aflibercept injection. AB - We describe a 36-year-old woman with a relapsing Hodgkin's lymphoma who developed a severe bilateral sudden visual loss almost three weeks after the initiation of brentuximab therapy. Ancillary fundus tests yielded bilateral severe retinal arteriolar occlusion 360 degrees and serous macular retinal detachment. No visual improvement could be achieved despite the pulse corticosteroid therapy and a single bilateral intravitreal aflibercept administration cessation of the brentuximab therapy. Unfortunately, she succumbed to respiratory failure almost six weeks after the diagnosis of Purtscher-like retinopathy. PMID- 29326862 TI - Perfluoro-n-octane mimicking an intraocular foreign body. AB - Retained intraocular foreign body (IOFB) is a major cause of visual loss following open globe injuries. Detecting the presence and accurate localization of IOFB in the setting of an open globe injury remains a challenge. There can be various mimics of intraocular IOFB on imaging including air, ocular calcifications, etc. Here, we describe a case of open globe injury wherein a retained perfluoro-n-octane bubble mimicked a retained intraocular foreign body. PMID- 29326863 TI - CMV endotheliitis: a cause for recurrent failed corneal transplant. AB - Objective: To highlight the clinical presentation of CMV endotheliitis and the challenge in diagnosing this condition in recurrent failed penetrating keratoplasty (PK). Methods: Case series Results: There are 3 cases of recurrent failure in PK secondary to CMV endotheliitis presented. Case 1 and 2 were pseudophakic patients, while in case 3, the patient had a previous history of recurrent anterior uveitis. Case 1 and 3 had four and one previous failed PK respectively, while case 2 had endothelial keratoplasty twice before the diagnosis of CMV endotheliitis was made, following positive culture of aqueous humour. The visual acuity ranged from 1/60 to hand movement. All patients had pigmented KP, and two of them had typical coin-shaped KP. Oral valganciclovir was instituted for all patients consisting of 900 mg bidaily for two weeks, followed by 900 mg once daily for six months. Additionally, topical ganciclovir eyedrop 0.5% was given every four hours with topical dexaminim four times a day. Repeated anterior chamber (AC) tap after six months of treatment was negative for CMV in case 3 while cases 1 and 2 are still on treatment. CMV endotheliitis is an increasingly important cause of failed corneal transplant. We recommend anterior chamber tap in suspicious cases of repeatedly failed corneal transplant, regardless of the presence of coin-shaped KP or not. Minimum treatment with oral valganciclovir is important to eradicate the problem, before proceeding with another corneal transplant. Conclusion: It is important to make an accurate early diagnosis by good clinical judgement in preventing loss of corneal endothelial cells. High index of suspicion for CMV endotheliitis as a cause of graft failure must be made especially when the patient presents with coin-shaped KP. Therefore unnecessary treatment resulting from misdiagnosis in these patients can be prevented. Early recognition and treatment of this condition is important to prevent permanent endothelial cell loss and corneal decompensation. PMID- 29326864 TI - Laparoscopic Finding of Ectopic Adrenocortical Tissue in a 2-Year-Old Boy with Vanishing Testis. AB - Ectopic adrenocortical tissue (EAT) along the spermatic cord is an unusual condition in children. The author reports on a 2-year-old boy with impalpable testis. On laparoscopy, EAT was detected along the hypotrophic spermatic vessels and excised. These remnants should be removed to prevent hormone production or malignant transformation. PMID- 29326865 TI - Rectal Atresia and Congenital Hypothyroidism: An Association or Coincidence? AB - Rectal atresia is a rare anorectal malformation, and its association with other anomalies is even more rare. This study presents a unique case of co-twin in which the surviving newborn male underwent surgery due to rectal atresia. Newborn screening tests identified congenital hypothyroidism. The surgical treatment consisted of three stages and thyroid hormones were replaced. PMID- 29326867 TI - Cavitary lung lesion suspicious for malignancy reveals Mycobacterium xenopi. AB - We report the case of a 68-year-old gentleman who presented with musculoskeletal chest pain which appeared suddenly when he bent over with his dog. The chest pain was localized to the left lower chest and increased with movement and deep breathing. The patient did not complain weight loss, night sweat, fever or chill. He complained of mild cough, with expectoration of whitish mucus. Imaging revealed cavitary chest lesion in the right upper lobe, which was initially suspected to be lung cancer. The patient had a 50-year-old history of smoking 2 packs per day. PET CT imaging did not reveal any specific activity. Needle biopsy and bronchoalveolar lavage, however, did not reveal any malignant cells. Rather, necrotic tissues were observed. A wedge resection of the lung mass was performed. No common organisms or fungi could be grown. However, acid fast bacilli were observed in clumps. The morphology hinted towards non-tuberculous mycobacterial organism(s). Molecular studies revealed infection with Mycobacterium xenopi. The patient was started on an anti-tuberculous regimen of INH, rifampicin, ethambutol and PZA, with pyridoxine. The patient is a Vietnam veteran and complained of exposure to dust from a bird's nest and asbestos exposure in childhood, but no specific exposure to tuberculosis. The patient had an uneventful recovery post surgery. He complained of some nausea after initiation of the antituberculous medications, but his pain subsided with time. The patient had diabetes, though specific reasons of compromise of immune status could not be pinpointed as causative of his nontuberculous mycobacterial lung infection. PMID- 29326868 TI - Essential thrombocytemia following immune thrombocytopenia with JAK2V617F mutation. AB - JAK2V617F mutation is found in about 60% of cases of essential thrombocytemia (ET) and represents a driving mutation. Immune thrombocytopenia (ITP) is an autoimmune disease characterized by a low platelet (PLT) count. So far, only 2 reports described ET following ITP. For the first time we analyzed in a patient the JAK2V617F allele burden at ITP onset occurred 13 years before the ET diagnosis and found the presence of a small clone JAK2V617F positive clone (3%) raised to 27% in the following years. The association of ET and ITP could suggest similar pathogenetic mechanisms that should be further investigated. PMID- 29326866 TI - A Review of Developmental Considerations in Human Laboratory Alcohol Research. AB - PURPOSE OF REVIEW: Human laboratory studies involving alcohol administration have generated critical knowledge about individual differences in risk for alcohol use disorder (AUD), but have primarily involved adult populations and cross-sectional research designs. Ethical constraints have largely precluded human laboratory alcohol research in adolescence, and prospective studies have been rare. This paper provides an overview of developmental considerations in human laboratory alcohol research, with a focus on studies conducted with youth. RECENT FINDINGS: Recent human laboratory studies from Europe and Canada have examined aspects of alcohol response during late adolescence, while recent survey studies from the United States have highlighted methods for circumventing alcohol administration in studies of adolescents. SUMMARY: Across several decades of research, exceedingly few laboratory studies have examined developmental differences in alcohol responses or utilized prospective designs. Efforts to prioritize prospective research would further clarify the role of alcohol sensitivity traits as predictors or markers of AUD onset and progression. PMID- 29326870 TI - Lyme carditis with isolated left bundle branch block and myocarditis successfully treated with oral doxycycline. AB - Lyme disease may present with a variety of cardiac manifestations ranging from first degree to third degree heart block. Cardiac involvement with Lyme disease may be asymptomatic, or symptomatic. Atrioventrical conduction abnormalities are the most common manifestation of Lyme carditis. Less common, are alternating right bundle branch block (RBBB) and left bundle branch block (LBBB). We present an interesting case of a young male whose main manifestation of Lyme carditis was isolated LBBB. He also had mild Lyme myocarditis. The patient was successfully treated with oral doxycycline, and his isolated LBBB and myocarditis rapidly resolved. PMID- 29326869 TI - Prenatal methadone exposure is associated with altered neonatal brain development. AB - Methadone is used for medication-assisted treatment of heroin addiction during pregnancy. The neurodevelopmental outcome of children with prenatal methadone exposure can be sub-optimal. We tested the hypothesis that brain development is altered among newborn infants whose mothers were prescribed methadone. 20 methadone-exposed neonates born after 37 weeks' postmenstrual age (PMA) and 20 non-exposed controls underwent diffusion MRI at mean PMA of 39+ 2 and 41+ 1 weeks, respectively. An age-optimized Tract-based Spatial Statistics (TBSS) pipeline was used to perform voxel-wise statistical comparison of fractional anisotropy (FA) data between exposed and non-exposed neonates. Methadone-exposed neonates had decreased FA within the centrum semiovale, inferior longitudinal fasciculi (ILF) and the internal and external capsules after adjustment for GA at MRI (p < 0.05, TFCE corrected). Median FA across the white matter skeleton was 12% lower among methadone-exposed infants. Mean head circumference (HC) z-scores were lower in the methadone-exposed group (- 0.52 (0.99) vs 1.15 (0.84), p < 0.001); after adjustment for HC z-scores, differences in FA remained in the anterior and posterior limbs of the internal capsule and the ILF. Polydrug use among cases was common. Prenatal methadone exposure is associated with microstructural alteration in major white matter tracts, which is present at birth and is independent of head growth. Although the findings cannot be attributed to methadone per se, the data indicate that further research to determine optimal management of opioid use disorder during pregnancy is required. Future studies should evaluate childhood outcomes including infant brain development and long-term neurocognitive function. PMID- 29326872 TI - Phenotypic spectrum of FARS2-deficiency. PMID- 29326871 TI - Quantification of the enzyme activities of iduronate-2-sulfatase, N acetylgalactosamine-6-sulfatase and N-acetylgalactosamine-4-sulfatase using liquid chromatography-tandem mass spectrometry. AB - Mucopolysaccharidosis (MPS) is a genetic disorder characterized by the accumulation of glycosaminoglycans in the body. Of the multiple MPS disease subtypes, several are caused by defects in sulfatases. Specifically, a defect in iduronate-2-sulfatase (ID2S) leads to MPS II, whereas N-acetylgalactosamine-6 sulfatase (GALN) and N-acetylgalactosamine-4-sulfatase (ARSB) defects relate to MPS IVA and MPS VI, respectively. A previous study reported a combined assay for these three disorders in a 96-well plate using a liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based technique (Kumar et al., Clin Chem 2015 61(11):1363-1371). In our study, we applied this methodology to a Japanese population to examine the assay precision and the separation of populations between disease-affected individuals and controls for these three disorders. Within our assay conditions, the coefficient of variation (CV, %) values for an interday assay of ID2S, GALN, and ARSB were 9%, 18%, and 9%, respectively (n = 7). The average enzyme activities of ID2S, GALN, and ARSB in random neonates were 19.6 +/- 5.8, 1.7 +/- 0.7, and 13.4 +/- 5.2 MUmol/h/L (mean +/- SD, n = 240), respectively. In contrast, the average enzyme activities of ID2S, GALN, and ARSB in disease-affected individuals were 0.5 +/- 0.2 (n = 6), 0.3 +/- 0.1 (n = 3), and 0.3 (n = 1) MUmol/h/L, respectively. The representative analytical range values corresponding to ID2S, GALN, and ARSB were 39, 17, and 168, respectively. These results raise the possibility that the population of disease-affected individuals could be separated from that of healthy individuals using the LC MS/MS-based technique. PMID- 29326873 TI - Motor involvement in Fabry disease. PMID- 29326874 TI - Only some patients with bulbar and spinal muscular atrophy may develop cardiac disease. AB - Objectives: According to recent publications, some patients with spinal and bulbar muscular atrophy (BSMA) develop cardiac disease, manifesting as ST-segment abnormalities, Brugada-syndrome, dilative cardiomyopathy, or sudden cardiac death. Here we present neurological and cardiac data of a BSMA patient who was followed up for 10 y. Case report: In a male patient aged 47 y, BSMA was diagnosed at age 37 y upon the typical clinical presentation (postural tremor since age 12 y, dysarthria since age 15 y, muscle cramps since age 29 y, general myalgias since age 32 y, general fasciculations since age 34 y, myoclonic jerks, easy fatigability, dyspnea upon exercise since age 36 y) and a CAG-repeat expansion of 47 +/- 1 repeats in the androgen-receptor gene detected at age 37 y. During the next 10 y he additionally developed mild but slowly progressive diffuse weakness on the upper limbs and mild proximal weakness on the lower limbs. Cardiologic exam, ECG, and echocardiography were normal at ages 37 y, 41 y, 44 y, and 47 y. Conclusions: Cardiac involvement may only develop in some BSMA patients within 10 y, whereas neurologic abnormalities slowly progress within 10 y of observation. Cardiac disease may develop at a later stage with progression of age and disease. PMID- 29326875 TI - Homocystinuria due to cystathionine beta-synthase (CBS) deficiency in Russia: Molecular and clinical characterization. AB - We present the results of the 45-year clinical observation of 27 Russian homocystinuria patients. We made a mutation analysis of the CBS gene for thirteen patients from eleven unrelated genealogies. All patients except for the two were compound heterozygotes for the mutations detected. The most frequent mutation in the cohort investigated was splice mutation IVS11-2a->c. We detected one new nonsense mutation, one new missense-mutation and three novel small deletions. We also report the clinical case of the B6-responsive patient genotyped as Ile278Thr/Cys109Arg. PMID- 29326876 TI - Mildly elevated succinylacetone and normal liver function in compound heterozygotes with pathogenic and pseudodeficient FAH alleles. AB - Background: A high level of succinylacetone (SA) in blood is a sensitive, specific marker for the screening and diagnosis of hepatorenal tyrosinemia (HT1, MIM 276700). HT1 is caused by mutations in the FAH gene, resulting in deficiency of fumarylacetoacetate hydrolase. HT1 newborns are usually clinically asymptomatic, but have coagulation abnormalities revealing liver dysfunction. Treatment with nitisinone (NTBC) plus dietary restriction of tyrosine and phenylalanine prevents the complications of HT1. Observations: Two newborns screened positive for SA but had normal coagulation testing. Plasma and urine SA levels were 3-5 fold above the reference range but were markedly lower than in typical HT1. Neither individual received nitisinone or dietary therapy. They remain clinically normal, currently aged 9 and 15 years. Each was a compound heterozygote, having a splicing variant in trans with a prevalent "pseudodeficient" FAH allele, c.1021C > T (p.Arg341Trp), which confers partial FAH activity. All newborns identified with mild hypersuccinylacetonemia in Quebec have had genetic deficiencies of tyrosine degradation: either deficiency of the enzyme preceding FAH, maleylacetoacetate isomerase, or partial deficiency of FAH itself. Conclusion: Compound heterozygotes for c.1021C > T (p.Arg341Trp) and a severely deficient FAH allele have mild hypersuccinylacetonemia and to date they have remained asymptomatic without treatment. It is important to determine the long term outcome of such individuals. PMID- 29326877 TI - Natural history of Morquio A patient with tracheal obstruction from birth to death. AB - Morquio A syndrome (mucopolysaccharidosis IVA, MPS IVA) is a lysosomal storage disease caused by a deficiency of N-acetylgalactosamine-6-sulfate sulfatase, resulting in systemic accumulation of the partially degraded glycosaminoglycans (GAGs), keratan sulfate and chondroitin-6-sulfate. The accumulation of these GAGs leads to distinguishing features as skeletal dysplasia with disproportionate dwarfism, short neck, kyphoscoliosis, pectus carinatum, tracheal obstruction, coxa valga, genu valgum, and joint laxity. In the absence of autopsied cases and systemic analysis of multiple tissues, the pathological mechanism of the characteristic skeletal dysplasia associated with the disease largely remains a question. Here we report an autopsied case of a 23-year-old male with MPS IVA, who developed characteristic skeletal abnormalities by 4 months of age and died of severe tracheal obstruction and hypoventilation originating from respiratory muscle weakness from neurological cord deficit due to cord myelopathy at the age of 23. We analyzed postmortem tissues pathohistologically, including the thyroid, lung, lung bronchus, trachea, heart, aorta, liver, spleen, kidney, testes, humerus, knee cartilage, and knee ligament. Examination of the tissues demonstrated systemic storage materials in multiple tissues, as well as severely ballooned and vacuolated chondrocytes in the trachea, humerus, knee cartilage, and lung bronchus. This autopsied case with MPS IVA addresses the importance of tracheal obstruction for morbidity and mortality of the disease, and the pathological findings contribute to a further understanding of the pathogenesis of MPS IVA and the development of novel therapies. PMID- 29326878 TI - Ten-year-long enzyme replacement therapy shows a poor effect in alleviating giant leg ulcers in a male with Fabry disease. AB - Fabry disease is an X-linked lysosomal storage disorder caused by a deficiency of alpha-galactosidase A (alpha-gal A), leading to the progressive accumulation of glycosphingolipids. Classical hemizygous males usually present symptoms, including pain and paresthesia in the extremities, angiokeratoma, hypo- or anhidrosis, abdominal pain, cornea verticillata, early stroke, tinnitus, and/or hearing loss, during early childhood or adolescence. Moreover, proteinuria, renal impairment, and cardiac hypertrophy can appear with age. Enzyme replacement is the most common therapy for Fabry disease at present which has been approved in Japan since 2004. We report a case involving a 27-year-old male with extreme terminal pain, anhidrosis, abdominal pain, tinnitus, hearing impairment, cornea verticillata, and recurrent huge ulcers in the lower extremities. At the age of 16 years, he was diagnosed with Fabry disease with a positive family history and very low alpha-gal A activity. He then received enzyme replacement therapy (ERT) with recombinant human agalsidase beta at 1 mg/kg every 2 weeks for 10 years. Throughout the course of ERT, his leg ulcers recurred, and massive excretion of urinary globotriaosylceramide and plasma globotriaosylsphingosine was observed. Electron microscopy of the venous tissue in the regions of the ulcer showed massive typical zebra bodies in the vascular wall smooth muscle cells. PMID- 29326879 TI - Characteristics of 26 patients with type 3 Gaucher disease: A descriptive analysis from the Gaucher Outcome Survey. AB - The Gaucher Outcome Survey (GOS) is an international disease-specific registry established in 2010 for patients with a confirmed diagnosis of Gaucher disease (GD), regardless of GD type or treatment status. Historically, there has been a limited understanding of type 3 GD (GD3) and its natural history in patients irrespective of their treatment status. Here, we describe the disease characteristics of patients with GD3 enrolled in GOS. As of October 2015, 1002 patients had been enrolled, 26 of whom were reported as GD3. The majority of patients with GD3 were from the US (13; 50.0%), seven (26.9%) were from the UK, three (11.5%) from Israel, and three (11.5%) from Brazil. No patients were of Ashkenazi Jewish origin. Median age of symptom onset was 1.4 (interquartile range: 0.5-2.0) years. The most common GBA1 mutation genotype was L444P/L444P, occurring in 16 (69.6%) of 23 patients who had genotyping information available. Nine patients reported a family history of GD (any type). Of 21 patients with treatment status information, 20 (95.2%) had received GD-specific treatment at any time, primarily imiglucerase (14 patients) and/or velaglucerase alfa (13 patients). Hemoglobin concentrations and platelet counts at GOS entry were within normal ranges for most patients, and there were no reports of severe hepatomegaly or of splenomegaly in non-splenectomized patients, most likely indicative of the effects of treatment received prior to GOS entry. This analysis provides information on the characteristics of patients with GD3 that could be used as the baseline for longitudinal follow-up of these patients. PMID- 29326880 TI - Blood phenylalanine instability strongly correlates with anxiety in phenylketonuria. AB - We assessed the relationship between anxiety and long-term metabolic control in adolescents with phenylketonuria (PKU). We used a standardized psychological test to measure anxiety level and analyzed lifelong blood phenylalanine stability in a selected group of 25 PKU teenagers with treatment adherence problems. We demonstrated significant correlations of anxiety with variability of blood phenylalanine concentrations and with severity of hyperphenylalaninemia. Avoiding blood phenylalanine fluctuations in childhood can probably reduce anxiety in PKU adolescents. PMID- 29326881 TI - Interaction of anthraquinones of Cassia occidentalis seeds with DNA and Glutathione. AB - Consumption of Cassia occidentalis (CO) seeds has been associated with the hepatomyoencephalopathy (HME) in children. Recently, we have characterized the toxic anthraquinones (AQs) such as Emodin, Rhein, Aloe-emodin, Chrysophanol and Physcion in CO seeds and detected these moieties in the bio fluids of CO poisoning cases. As AQs were detected in the serum of HME patients, their interaction with key biomolecules including protein, DNA and glutathione (GSH) is imperative. In this regard, we have previously reported the interaction of these AQs with serum albumin protein and their subsequent biological effects. However, the interaction of these AQs with DNA and GSH remained unexplored. In the present work, we have studied the binding of these AQs of CO seeds with DNA and GSH by fluorescence spectroscopy, UV-vis spectral analysis, molecular docking, and biochemical studies. Results indicated a higher binding affinity for Emodin (Ka = 3.854 * 104 L mol-1 S-1), Aloe-emodin (Ka = 0.961 * 104 L mol-1 S-1) and Rhein (Ka = 0.034 * 104 L mol-1 S-1) towards calf thymus DNA may be associated with their higher cytotoxicity. Alternatively, Physcion and Chrysophanol which showed less cytotoxicity in our earlier studies exhibited very low DNA binding. The binding pattern of all these AQs is consistent with the in-silico data. Absorption spectroscopy studies indicated the possible formation of GSH conjugate with Aloe-emodin and Physcion. Further biochemical measurement of GSH and GSSG (Glutathione disulfide) following incubation with AQs indicated that Aloe-emodin (28%) and Rhein (30%) oxidizes GSH to GSSG more as compared to other AQs. Taken together, these results suggest that the higher cytotoxicity of Rhein, Emodin and Aloe-emodin may be attributed to their potent DNA and GSH binding affinity. PMID- 29326882 TI - The Role of Class IA Phosphatidylinositol-4,5-Bisphosphate 3-Kinase Catalytic Subunits in Glioblastoma. AB - Phosphatidylinositol-4,5-bisphosphate 3-kinase (PI3K) plays a critical role in the pathogenesis of cancer including glioblastoma, the most common and aggressive form of brain cancer. Targeting the PI3K pathway to treat glioblastoma has been tested in the clinic with modest effect. In light of the recent finding that PI3K catalytic subunits (PIK3CA/p110alpha, PIK3CB/p110beta, PIK3CD/p110delta, and PIK3CG/p110gamma) are not functionally redundant, it is imperative to determine whether these subunits play divergent roles in glioblastoma and whether selectively targeting PI3K catalytic subunits represents a novel and effective strategy to tackle PI3K signaling. This article summarizes recent advances in understanding the role of PI3K catalytic subunits in glioblastoma and discusses the possibility of selective blockade of one PI3K catalytic subunit as a treatment option for glioblastoma. PMID- 29326883 TI - Metabolic Plasiticy in Cancers-Distinct Role of Glycolytic Enzymes GPI, LDHs or Membrane Transporters MCTs. AB - Research on cancer metabolism has recently re-surfaced as a major focal point in cancer field with a reprogrammed metabolism no longer being considered as a mere consequence of oncogenic transformation, but as a hallmark of cancer. Reprogramming metabolic pathways and nutrient sensing is an elaborate way by which cancer cells respond to high bioenergetic and anabolic demands during tumorigenesis. Thus, inhibiting specific metabolic pathways at defined steps should provide potent ways of arresting tumor growth. However, both animal models and clinical observations have revealed that this approach is seriously limited by an extraordinary cellular metabolic plasticity. The classical example of cancer metabolic reprogramming is the preference for aerobic glycolysis, or Warburg effect, where cancers increase their glycolytic flux and produce lactate regardless of the presence of the oxygen. This allows cancer cells to meet the metabolic requirements for high rates of proliferation. Here, we discuss the benefits and limitations of disrupting fermentative glycolysis for impeding tumor growth at three levels of the pathway: (i) an upstream block at the level of the glucose-6-phosphate isomerase (GPI), (ii) a downstream block at the level of lactate dehydrogenases (LDH, isoforms A and B), and (iii) the endpoint block preventing lactic acid export (MCT1/4). Using these examples of genetic disruption targeting glycolysis studied in our lab, we will discuss the responses of different cancer cell lines in terms of metabolic rewiring, growth arrest, and tumor escape and compare it with the broader literature. PMID- 29326884 TI - Primary Orbital Melanoma: Presentation, Treatment, and Long-term Outcomes for 13 Patients. AB - Background: Periocular melanoma is a rare but often deadly malignancy that arises in the uvea (commonest origin), conjunctiva or orbit (rarest primary site). Melanoma accounts for 5-10% of metastatic/secondary orbital malignancies, but only a tiny proportion of primary orbital neoplasia. Primary orbital melanoma (POM) is exceedingly rare, with approximately 50 cases reported to date. Methods: All patients seen in the orbital unit at a tertiary referral hospital (1991-2016) with a biopsy-proven diagnosis of POM were identified from a diagnostic database and were studied. The case notes, imaging, surgical approach, and histology were reviewed. Results: Thirteen patients (five male; 38%) presented with isolated malignant melanoma of the orbit, for which no other primary site was identified at presentation or during an average follow-up of 44 months (median 22; range 0 13 years). The patients presented between the ages of 40 and 84 years (mean 55.5; median 48 years) and typically gave a short history of rapidly increasing proptosis and eyelid swelling. On the basis of history, a malignant lesion was suspected in most patients and all underwent incisional biopsy, with debulking of the mass in 10 (77%) patients, and skin-sparing exenteration in 3/13 (23%). Ten patients underwent orbital radiotherapy and the survival to date ranged from 9 months to 14 years (mean 55 months; median 23 months); two patients received solely palliative care for widespread disease and one patient refused orbital radiotherapy. Five of the 13 (38%) patients died from the disease. Discussion: POM is a very rare malignancy, but clinical analysis of this cohort gives insight into disease presentation and prognosis. The tumor typically presents with a rapidly progressive, well-defined mass that is, in some cases, amenable to macroscopically intact excision. Unusual for malignant melanoma, some of these patients can show an unusually long period of quiescent disease after surgical debulking and radiotherapy. PMID- 29326886 TI - Oral Microbiota: Microbial Biomarkers of Metabolic Syndrome Independent of Host Genetic Factors. AB - The oral microbiota plays a critical role in both local and systemic inflammation. Metabolic syndrome (MetS) is characterized by low-grade inflammation, and many studies have been conducted on the gut microbiota from stool specimens. However, the etiological role of the oral microbiota in the development of MetS is unclear. In this study, we analyzed the oral and gut microbiome from 228 subgingival plaque and fecal samples from a Korean twin family cohort with and without MetS. Significant differences in microbial diversity and composition were observed in both anatomical niches. However, a host genetic effect on the oral microbiota was not observed. A co-occurrence network analysis showed distinct microbiota clusters that were dependent on the MetS status. A comprehensive analysis of the oral microbiome identified Granulicatella and Neisseria as bacteria enriched in subjects with MetS and Peptococcus as bacteria abundant in healthy controls. Validation of the identified oral bacteria by quantitative PCR (qPCR) showed that healthy controls possessed significantly lower levels of G. adiacens (p = 0.023) and a higher ratio of Peptococcus to Granulicatella (p < 0.05) than MetS subjects. Our results support that local oral microbiota can be associated with systemic disorders. The microbial biomarkers identified in this study would aid in determination of which individuals develop chronic diseases from their MetS and contribute to strategic disease management. PMID- 29326889 TI - Office/home-based exercise rehabilitation is useful for computer-based workers in today's world. PMID- 29326888 TI - Season's greetings. PMID- 29326885 TI - Chlamydia abortus Pmp18.1 Induces IL-1beta Secretion by TLR4 Activation through the MyD88, NF-kappaB, and Caspase-1 Signaling Pathways. AB - The polymorphic membrane protein D (Pmp18D) is a 160-kDa outer membrane protein that is conserved and plays an important role in Chlamydia abortus pathogenesis. We have identified an N-terminal fragment of Pmp18D (designated Pmp18.1) as a possible subunit vaccine antigen. In this study, we evaluated the vaccine potential of Pmp18.1 by investigating its ability to induce innate immune responses in dendritic cells and the signaling pathway(s) involved in rPmp18.1 induced IL-1beta secretion. We next investigated the immunomodulatory impact of VCG, in comparison with the more established Th1-promoting adjuvants, CpG and FL, on rPmp18.1-mediated innate immune activation. Finally, the effect of siRNA targeting TLR4, MyD88, NF-kappaB p50, and Caspase-1 mRNA in DCs on IL-1beta cytokine secretion was also investigated. Bone marrow-derived dendritic cells (BMDCs) were stimulated with rPmp18.1 in the presence or absence of VCG or CpG or FL and the magnitude of cytokines produced was assessed using a multiplex cytokine ELISA assay. Expression of costimulatory molecules and Toll-like receptors (TLRs) was analyzed by flow cytometry. Quantitation of intracellular levels of myeloid differentiation factor 88 (MyD88), nuclear factor kappa beta (NF-kappaB p50/p65), and Caspase-1 was evaluated by Western immunoblotting analysis while NF-kappaB p65 nuclear translocation was assessed by confocal microscopy. The results showed DC stimulation with rPmp18.1 provoked the secretion of proinflammatory cytokines and upregulated expression of TLRs and co stimulatory molecules associated with DC maturation. These responses were significantly (p <= 0.001) enhanced by VCG but not CpG or FL. In addition, rPmp18.1 activated the expression of MyD88, NF-kappaB p50, and Caspase-1 as well as the nuclear expression of NF-kappaB p65 in treated DCs. Furthermore, targeting TLR4, MyD88, NF-kappaB p50, and Caspase-1 mRNA in BMDCs with siRNA significantly reduced their expression levels, resulting in decreased IL-1beta cytokine secretion, strongly suggesting their involvement in the rPmp18.1-induced IL-1beta cytokine secretion. Taken together, these results indicate that C. abortus Pmp18.1 induces IL-1beta secretion by TLR4 activation through the MyD88, NF kappaB as well as the Caspase-1 signaling pathways and may be a potential C. abortus vaccine candidate. The vaccine potential of Pmp18.1 will subsequently be evaluated in an appropriate animal model, using VCG as an immunomodulator, following immunization and challenge. PMID- 29326890 TI - How can we reduce injuries and illnesses among athletes during the PyeongChang 2018 Olympic Winter Games? PMID- 29326887 TI - Streptococcus mutans Displays Altered Stress Responses While Enhancing Biofilm Formation by Lactobacillus casei in Mixed-Species Consortium. AB - Like Streptococcus mutans, lactobacilli are commonly isolated from carious sites, although their exact role in caries development remains unclear. This study used mixed-species models to analyze biofilm formation by major groups of oral lactobacilli, including L. casei, L. fermentum, L. rhamnosus, L. salivarius ssp. salivarius, and L. gasseri. The results showed that lactobacilli did not form good biofilms when grown alone, although differences existed between different species. When grown together with S. mutans, biofilm formation by L. gasseri and L. rhamnosus was increased by 2-log (P < 0.001), while biofilms by L. fermentum reduced by >1-log (P < 0.001). L. casei enhanced biofilm formation by ~2-log when grown with S. mutans wild-type, but no such effects were observed with S. mutans deficient of glucosyltransferase GtfB and adhesin P1. Both S. mutans and L. casei in dual-species enhanced resistance to acid killing with increases of survival rate by >1-log (P < 0.001), but drastically reduced the survival rates following exposure to hydrogen peroxide (P < 0.001), as compared to the respective mono species cultures. When analyzed by RNA-seq, more than 134 genes were identified in S. mutans in dual-species with L. casei as either up- or down-regulated when compared to those grown alone. The up-regulated genes include those for superoxide dismutase, NADH oxidase, and members of the mutanobactin biosynthesis cluster. Among the down-regulated genes were those for GtfB and alternative sigma factor SigX. These results further suggest that interactions between S. mutans and oral lactobacilli are species-specific and may have significant impact on cariogenic potential of the community. PMID- 29326891 TI - Role of exercise on molecular mechanisms in the regulation of antidepressant effects. AB - Regular exercise reduces depressive-like behavior activation. In this study, we look for exact roles of exercise on molecular and neuronal mechanisms for antidepressant action by studying the hippocampal neuroplasticity and proliferation. Increased hippocampal neurogenesis with exercise has potential significance for depression. Exercise promotes brain health in the molecular levels in the hippocampus and also affects behavior in a similar way to chronic antidepressant treatment. Wingless (Wnt) and frizzled signaling system plays an important role in cell proliferation, growth, and differentiation during development. Our results demonstrate complicated, differential effects of antidepressants on Wnt signaling system, and assume a role for selected signaling molecules in the neurogenic activity of antidepressant care. Our review suggests that exercise may preserve brain function by increasing neurogenesis through activating Wnt signaling pathway in the psychiatric disorders, such as depression. PMID- 29326892 TI - Role of transforming growth factor-beta in muscle damage and regeneration: focused on eccentric muscle contraction. AB - High-intensity eccentric muscle contraction induces muscle damage. Damaged muscles recover through different processes, including degeneration, inflammation, regeneration, and fibrosis; some of these processes are mediated through the actions of cytokines. The transforming growth factor-beta (TGF-beta) is one such cytokine involved in muscle recovery and repair. In this regard, TGF beta regulates the skeletal muscle inflammatory response, inhibits muscle regeneration, regulates extracellular matrix remodeling, and promotes fibrosis. Although some studies have suggested that inhibition of TGF-beta after muscle damage promotes muscle regeneration and recovery, other studies have noted that TGF-beta inhibition actually reduces muscle strength because it leads to incomplete muscle regeneration. Despite the importance of TGF-beta in the repair of damaged muscles, most studies have focused on examining its role in muscle diseases such as chronic inflammatory diseases or Duchenne's muscular dystrophy. Here, we have reviewed the existing literature for examining the role of TGF-beta in muscle damage and regeneration after eccentric muscle contraction. PMID- 29326894 TI - Comparison study for body image education of domestic and overseas female college students. AB - The 2016 health education index showed such tendency as well including their raised obesity index, and reported that they are much interested in body images appearing externally. Accordingly, in this study, we conducted the self-reported questionnaire aimed at a total of 389 subjects composed of domestic (n= 226) and overseas (n= 163) female college students from Asia, Europe, and Latin America so as to investigate their body images for face, figure and health through questionnaires. In this context, a survey was conducted with the method of this study, consequently indicating that overseas subjects are more greatly positive and active to body images (face, figure, and health) by health level, exercise preferences, extent of body activities and body weight than domestic ones. These results reflect a different viewpoint between those subjects and reveal that overseas subjects are more committed to maintaining their health through body activities compared to domestic ones. Moreover, it is considered that domestic subjects tend to place a higher value on external beauty rather than beauty in terms of physical health, thereby it is most important to change the beauty values. Therefore, in the future, health education should play a critical role in promoting discussions for plans and practical strategies of improving health between students and in participating actively in health behaviours. PMID- 29326893 TI - Treadmill exercise ameliorates social isolation-induced depression through neuronal generation in rat pups. AB - Social isolation is known to induce emotional and behavioral changes in animals and humans. The effect of treadmill exercise on depression was investigated using social isolated rat pups. The rat pups in the social isolation groups were housed individually. The rat pups in the exercise groups were forced to run on treadmill for 30 min once a day from postnatal day 21 to postnatal day 34. In order to evaluate depression state of rat pups, forced swimming test was performed. Newly generated cells in the hippocampal dentate gyrus were determined by 5-bromo-2' deoxyuridine (BrdU) immunohistochemistry. We examined the expression of 5 hydroxytryptamine (5-HT) and tryptophan hydroxylase (TPH) in the dorsal raphe using immunofluorescence. The expression of brain-derived neurotrophic factor (BDNF) and tyrosine kinase B (TrkB) was detected by Western blot analysis. The present results demonstrated that social isolation increased resting time and decreased mobility time. Expression of 5-HT and TPH in the dorsal raphe and expression of BDNF and TrkB in the hippocampus were decreased by social isolation. The number of BrdU-positive cells in the hippocampal dentate gyrus was suppressed by social isolation. Treadmill exercise decreased resting time and increased mobility in the social isolated rat pups. Expression of 5-HT, TPH, BDNF, and TrkB was increased by treadmill exercise. The present results suggested that treadmill exercise may ameliorates social isolation-induced depression through increasing neuronal generation. PMID- 29326895 TI - Effects of walking with hand-held weights on energy expenditure and excess postexercise oxygen consumption. AB - Walking is not only important to assist in performing daily tasks, but also to gain cardiovascular benefits. Further research on walking is needed to examine the physiological responses to improve health and reduce the risks of cardiovascular disease. The purpose of this study was to compare the energy expenditure (EE) during and after walking exercise with versus without hand-held weights (HHW). Nineteen sedentary women (mean+/-standard deviation; age, 21+/-2.7 years, height, 163.1+/-6.3 cm; body mass, 66.6+/- 15.1 kg; body fat %, 30.6%+/- 7.43%; body mass index, 25.5+/- 5.7 kg/m2) volunteered walking with versus without 1.36 kg of HHW in two randomized sessions. The study consisted of 30 min of exercise followed b silent sitting for 30 min. The range of motion was set at elbow flexion at 90 degrees while arms were alternated 30.48 cm forward and backward. 1% incline was set for the treadmill grade and speed was controlled to a moderate level of 40%-59% of heart rate reserve. During the 30-min exercise no significant differences were found between the conditions (P> 0.05). The physiological responses were significantly greater directly after exercise compared with baseline as determined from pairwise comparisons collapsed across conditions (P<= 0.05). Walking with HHW was not substantial enough to raise EE beyond normal walking and led to an increased effort level. Additionally, the moderate intensity of walking was not enough to sustain EE at a surpassing level directly after the exercise. PMID- 29326896 TI - Relationship between sitting volleyball performance and field fitness of sitting volleyball players in Korea. AB - The purpose of this study was to evaluate the relationship between sitting volleyball performance and the field fitness of sitting volleyball players. Forty five elite sitting volleyball players participated in 10 field fitness tests. Additionally, the players' head coach and coach assessed their volleyball performance (receive and defense, block, attack, and serve). Data were analyzed with SPSS software version 21 by using correlation and regression analyses, and the significance level was set at P< 0.05. The results showed that chest pass, overhand throw, one-hand throw, one-hand side throw, splint, speed endurance, reaction time, and graded exercise test results had a statistically significant influence on the players' abilities to attack, serve, and block. Grip strength, t test, speed, and agility showed a statistically significant relationship with the players' skill at defense and receive. Our results showed that chest pass, overhand throw, one-hand throw, one-hand side throw, speed endurance, reaction time, and graded exercise test results had a statistically significant influence on volleyball performance. PMID- 29326897 TI - Effect of vigorous physical activity on blood lipid and glucose. AB - The aim of the study is to investigate how the participation of vigorous physical activities in the health examination contributes to blood lipid and blood glucose. A total of 56,810 workers from the Ulsan University Hospital in Ulsan, Subjects were tested for health checkups from February to November in 2016. The subject is those who does not have medical history, current ailments, and medication histories, and selected those who conducted the study of subjects tested to research. And this study did not consider their drinking and smoking. The final selected population was 11,557 and categorized as a vigorous physical activity of the health survey items. In this study, the group participated by the vigorous physical activity activities, group 1 (n= 70) had more than 6 days of vigorous physical activity, group 2 (n= 2,960) is 3 to 5 days of vigorous physical activity, the group 3 (n= 7,389) is 1 to 2 days of vigorous physical activity. The group 4 (n= 1,138) were classified as those who did not perform vigorous physical activity. To achieve the purpose of the study, the questionnaire examined blood lipid and blood glucose, using questions related to physical activity related to health examination in the Ulsan University Hospital. We obtained the mean and standard deviation for each group and conducted the one way analysis of variance as an independent variable. Post hoc is least significant difference test and significant level is 0.05. Vigorous physical activity more than 3 days of participation had a positive affect high-density lipoprotein cholesterol and triglyceride. But participation in vigorous physical activity did not affect blood glucose. PMID- 29326898 TI - Effect of 10% weight loss on simulated taekwondo match performance: a randomized trial. AB - The objective of the present study was to analyze the effect of 10% body mass reduction on simulated taekwondo match performance. Thirty-one male taekwondo athletes were randomly distributed in two groups: weight loss group (n= 15) - athletes in this group reduced 5% body mass per week during two successive weeks, totaling 10% body mass reduction; control group (n= 16) - athletes in this group kept their body mass constant during the 2-week period. Twenty-four hours before and after this period, athletes performed a simulated 3-round taekwondo match (6 min). Athletes wore body protectors to validate the scores during the match according to the official taekwondo rules. Match was filmed and actions were categorized using the Game Performance Assessment Instrument. There was a group and time interaction (P< 0.001) for body mass, with decrease only for the weight loss group (P= 0.001). A group and time interaction was also observed for the taekwondo match performance (P< 0.001), with performance increase being found only for the control group (P= 0.01). Thus, the 10% weight loss was not a good strategy to improve taekwondo skills' performance. PMID- 29326899 TI - Effectiveness of a multimodal exercise rehabilitation program on walking capacity and functionality after a stroke. AB - The aim of this study was to determine the effectiveness of a 12-week multimodal exercise rehabilitation program on walking speed, walking ability and activities of daily living (ADLs) among people who had suffered a stroke. Thirty-one stroke survivors who had completed a conventional rehabilitation program voluntarily participated in the study. Twenty-six participants completed the multimodal exercise rehabilitation program (2 days/wk, 1 hr/session). Physical outcome measures were: walking speed (10-m walking test), walking ability (6-min walking test and functional ambulation classification) and ADLs (Barthel Index). The program consisted on: aerobic exercise; task oriented exercises; balance and postural tonic activities; and stretching. Participants also followed a program of progressive ambulation at home. They were evaluated at baseline, postintervention and at the end of a 6-month follow-up period. After the intervention there were significant improvements in all outcomes measures that were maintained 6 months later. Comfortable and fast walking speed increased an average of 0.16 and 0.40 m/sec, respectively. The walking distance in the 6-min walking test increased an average of 59.8 m. At the end of the intervention, participants had achieved independent ambulation both indoors and outdoors. In ADLs, 40% were independent at baseline vs. 64% at the end of the intervention. Our study demonstrates that a multimodal exercise rehabilitation program adapted to stroke survivors has benefits on walking speed, walking ability and independence in ADLs. PMID- 29326900 TI - Development of strategies for changing in physical activity behaviors on older adults with disabilities. AB - The purpose of this study was to develop strategies for promoting physical activity for the disabled older adults who were in the transtheoretical model of precontemplation, contemplation, and preparation stages about participating physical activities for promoting healthy life-styles. In order to achieve this goal, we developed a preliminary strategy for promoting physical activity for the elderly with disabilities based on the data gathered through the ground-work studies and the results of the research on the changes of the exercise behavior directly investigated from the elderly with disabilities. Then the strategies were verified to completion of the final promoting strategies. The elderly with disabilities in the three stages of precontemplation, contemplation, and preparation should develop strategies to think positively about themselves and their surroundings as well as strengthen their appropriate healthy behaviors. Additionally, families, physicians, and healthy seniors who spent time with disabled older adults could help to promote physical activities. However, overall administrative support, in-stitutional system construction, and public policy support were needed and it suggested that multifaceted supports and a variety of cooperation were necessary to improve a quality of life among older adults with disabilities. PMID- 29326901 TI - Short-term effects of Theracurmin dose and exercise type on pain, walking ability, and muscle function in patients with knee osteoarthritis. AB - The purpose of this study was to investigate the short-term of Theracurmin dose and exercise type on pain, walking ability, and muscle function in patients with knee osteoarthritis. Twenty-five patients with knee osteoarthritis randomly selected to Theracurmin intake (T) group and Theracurmin in combined with exercise (T+E) group. T group (n= 13) was taken orally a capsule of 700 mg, 3 times per day, (total 2,100 mg, 35 mg/kg-body weight). T+E group (n= 12) performed aerobic training of 30-min walking and weight training for increasing leg muscular strength. After treatment, the number of steps, muscle mass, range of motion of knee, and the muscle strength in flexion and extension significantly increased. The percent body fat, visual analogue scale, The Western Ontario and McMaster score, centers of pressure with closed eye, 10-m walking ability, stair ascending speed were significantly decreased after treatment. Although no difference observed between the T and T+E groups, the 4-week intake of Theracurmin with and without exercise appeared to be effective in reducing the pain and enhancing muscular and balancing function. Therefore, Theracurmin intake for early symptoms and additional exercise as symptoms alleviate might be an effective way of delaying and managing osteoarthritis, and additional studies investigating the effects of Theracurmin and exercise on osteoarthritis could be beneficial. PMID- 29326902 TI - Low-intensity training provokes adaptive extracellular matrix turnover of a muscular dystrophy model. AB - Recommendations of therapeutic exercise in Duchenne muscular dystrophy are still controversial. The hypothesis that a low-intensity training (LIT) protocol leads to muscle adaptations on mdx mice model was tested. Dystrophic male mice with 8 weeks old were separated in exercised (mdxE, n= 8) and sedentary (mdxC, n= 8) groups. Wild-type mice were used as control (WT, n= 8) group. Exercised group underwent a LIT protocol (9 m/min, 30 min, 3 days/wk, 60 days) on a horizontal treadmill. At day 60 all animals were analyzed regarding parameters of markers of muscle lesion and extracellular matrix turnover of muscle tissue by collagens fibers on tibial anterior muscle. Histomorphometry attested that centrally located nuclei fibers and the coefficient of variance of minimal Feret's diameter was similar in mdxE and mdxC groups (P= 1.000) and both groups presented higher mean values than WT group (P< 0.001). Fraction area of collagen fibers of mdxE group was lower than mdxC group (P= 0,027) and similar to WT group (P= 0,751). Intramuscular area of Col3 of the mdxE group was higher than mdxC and WT groups (P<0.001). Intramuscular area of Col1 on the mdxE group was similar to the mdxC group (P= 1.000) and both groups were higher than WT group (P< 0.001). LIT protocol had not influenced muscle injuries resulting from the dystrophin deficiency membrane fragility. Although, LIT had provoked adaptations on extracellular matrix bringing higher elastic feature to dystrophic muscle tissue. PMID- 29326903 TI - Inter- and intrarater reliability of goniometry and hand held dynamometry for patients with subacromial impingement syndrome. AB - The purpose of this study was to examine the intra- and interrater reliability of measuring shoulder range of motion (ROM) and strength among patients diagnosed with subacromial impingement syndrome (SAIS). Twenty-five patients (14 female patients; mean age, 60.4+/- 7.84 years) diagnosed with SAIS were assessed to determine the intrarater reliability for glenohumeral ROM. Twenty-five patients (16 female patients; mean age, 60.4+/- 7.80 years) and 76 asymptomatic volunteers (52 female volunteers; mean age, 29.4+/- 14.1 years) were assessed for interrater reliability. Dependent variables were active shoulder ROM and isometric strength. Intrarater reliability was fair-to-excellent for the SAIS patients (intraclass correlation coefficient [ICC], 0.52-0.97; standard error of measurement [SEM], 4.4 degrees -9.9 degrees N; coefficient of variation [CV], 7.1%-44.9%). Based on the ICC, 11 of 12 parameters (92%) displayed an excellent reliability (ICC> 0.75). The interrater reliability showed fair-to-excellent results (SAIS patients: ICC, 0.13-0.98; SEM, 2.3 degrees -8.8 degrees ; CV, 3.6%-37.0%; controls: ICC, 0.11-0.96; SEM, 3.0 degrees -35.4 degrees ; CV, 5.6%-26.4%). In accordance with the intrarater reliability, glenohumeral adduction ROM was the only parameter with an ICC below 0.75 for both samples. Painful shoulder ROM in the SAIS patients showed no influence on the quality of reliability for measurement. Therefore, these protocols should be considered reliable assessment techniques in the prevention, diagnosis, and treatment of painful shoulder conditions such as SAIS. PMID- 29326904 TI - Effects of habitual smoking on cardiopulmonary function in taekwondo athletes. AB - This study aimed to verify habitual smoking effects on cardiopulmonary function in taekwondo athletes. Subjects were university taekwondo athletes aged 20-24 years in nonsmoker (n= 9) and smoker (n= 6) groups. Subjects underwent an exercise examination for their ventilation threshold, minute ventilation, oxygen uptake, maximum volume of minute oxygen consumption, heart rate, and oxygen pulse during exercise and 1, 3, and 5 min after maximum exercise. The time of reaching the ventilation threshold was significantly higher in nonsmokers than in smokers. Heart rate during recovery after maximum exercise was significantly lower in nonsmokers for 1 and 3 min. Nonsmokers had significantly higher time for reaching the ventilation threshold and heart rate recovery at 1 and 3 min after exercise. The higher timing of accumulation fatigue in ventilation amount and faster recovery after exercise are useful in continuous exercise and improving athletic performance. Thus, athletes should stop smoking as soon as possible to improve their aerobic physical fitness and athletic performance. PMID- 29326905 TI - Neuromuscular features in sprinters with cerebral palsy: case studies based on paralympic classification. AB - Despite the evolution of runner performance in athletes with cerebral palsy (CP), little is known about neuromuscular parameters of sprinters from different classes, especially related to power output, muscular imbalances and asymmetry indexes in lower limbs. The aim of this study was to assess muscle power, muscular imbalance and asymmetry in sprinters with CP. Four male sprinters with CP (age, 18 to 27 years; body mass, 58.5 to 72.8 kg; height, 161.5 to 174 cm) classified as T38, T37, T36, T35 according to International Paralympic Committee functional classification, performed vertical counter movement jump and squat jump on force plate and isokinetic torque evaluations in both limbs. The concentric peak torque (PT) was measured at 60 degrees /sec, 120 degrees /sec and 180 degrees /sec and PT eccentric at 60 degrees /sec and 120 degrees /sec. The asymmetry indexes, conventional and functional ratios were assessed. the results showed that athletes with more severe impairments (T35 and T36) showed worse performance to muscle power, more muscular imbalance and higher asymmetry in PT between limbs (> 10%). The exception was T37 athlete, who presented the better performance for all variables. it is concluded that CP athletes with more severe impairments showed lower jumping performance and torque production of knee extensors and flexors, they showed greater asymmetries between limbs. Finally, considering the results of T37 athlete, it seems that the athletic training for a longer period can reverse part of the neuromuscular impairments caused by CP. PMID- 29326906 TI - A comparison of ground reaction force components according to the foothold heights in 16-t truck during downward step. AB - The aim of this study is to compare and analyze the components of ground reaction force (GRF) relative to the foothold heights during downward step of 16-t truck. Adult males (n= 10) jumped downward from each 1st, 2nd, 3rd foothold step and driver's seat orderly using hand rail. Sampling rate of force components of 3 axis (medial-lateral [ML] GRF, anterior-posterior [AP] GRF, peak vertical force [PVF]), variables (COPx, COPy, COP area) of center of pressure (COP), loading rate, and stability index (ML, AP, vertical, and dynamic postural stability index [DPSI]) processed from GRF system was cut off at 1,000 Hz. and variables was processed with repeated one-way analysis of variance. AP GRF, PVF and loading rate showed higher value in case of not used hand rail than that used hand rail in all 1st, 2nd, and 3rd of foothold step. DPSI showed more lowered stability in order of 2nd, 3rd step than 1st foothold step used with hand rail, of which showed lowest stability from driver's seat. COPx, COPy, and COP area showed higher value in case of 2nd and 3rd than that of 1st of foothold step, and showed lowest stability from driver's seat. It is more desirable for cargo truck driver to utilize an available hand rail in order of 3rd, 2nd, and 1st of foothold step than downward stepping directly, thus by which may results in decrease of falling injuries and minimization of impulsive force transferring to muscular-skeletal system. PMID- 29326907 TI - Remote Lifestyle Counseling Influences Cardiovascular Health Outcomes in Youth with Overweight or Obesity and Congenital Heart Disease. AB - Background: Children with overweight/obesity and congenital heart disease (CHD) are at increased cardiovascular risk. A lifestyle intervention may help reduce these risks. We sought to determine the feasibility of a smartphone-based lifestyle intervention to improve cardiovascular health outcomes in children with overweight/obesity and CHD. Methods: We examined the effect of bi-weekly nutrition and fitness counseling delivered via smartphone over 12 months. Thirty four youth, previously diagnosed with CHD and with overweight or obesity, participated in the intervention. They were divided into two groups depending on whether the heart disease required surgical correction (operated, n = 19) or not (non-operated, n = 15). Anthropometry, body composition cardiorespiratory exercise capacity, and cardio-metabolic risk factors were assessed at baseline, 6 months, and 12 months. Results: Statistically significant decreases in waist circumference (WC), body mass index z-score, WC z-score, and waist to height ratio z-score were observed at 6 and 12 months in the operated group. A significant linear increase in lean body mass was observed in both groups. The study also had a high retention rate and a low attrition rate. Conclusion: The observed changes in anthropometry were positive with significant improvement to some cardiovascular and metabolic risk indicators. However, this was only observed in the operated group suggesting that other factors, such as perception of condition and self-efficacy, may influence lifestyle behaviors. The results from this pilot study clearly demonstrate the feasibility to perform a larger controlled study on remote lifestyle intervention in children with congenital heart defects and overweight or obesity. PMID- 29326908 TI - Asthma and Obesity in Children Are Independently Associated with Airway Dysanapsis. AB - Background: An increase in the prevalence of overweight and asthma has been observed. Both conditions affect negatively lung function in adults and children. The aim of this study was to analyze the effect of overweight and asthma on lung function in children. Methods: We designed a case-control study of healthy and asthmatic subjects nested within an epidemiological asthma prevalence study in children between 8 and 16 years of age. The effect of asthma and overweight on lung function was assessed by impulse oscillometry and spirometry obtained at baseline and 10-15 min after salbutamol. Results: 188 children were recruited, 114 (61%) were asthmatics and 72 (38%) were overweight or obese. Children with asthma and overweight had a higher FVC (+1.16 z scores, p < 0.001) and higher FEV1 (+0.79 z scores, p = 0.004) and lower FEV1/FVC (-0.54 z scores, p = 0.008) when compared to healthy controls. Compared to normal weight asthmatics, the overweight had higher FVC (+0.78 z scores, p = 0.005) and lower FEV1/FVC (-0.50 z scores, p = 0.007). In the multivariate analysis, overweight was associated with an increase of 0.71 and 0.44 z scores in FVC and FEV1, respectively, and a reduction in FEV1/FVC by 0.40 z scores (p < 0.01 for all). Overweight had no effect on maximal flows and airway resistance at baseline, and this was not modified by inhalation of a bronchodilator. Asthma was also associated with higher post-BD FVC (0.45 z scores, p = 0.012) and FEV1 (0.35 z scores, p = 0.034) but not with FEV1/FVC and FEF25-75%. Two-way analysis of variance did not detect any interaction between asthma and overweight on lung function variables before or after bronchodilator. Conclusion: Our results suggest that asthma and overweight are independently associated with airway dysanaptic growth in children which can be further scrutinized using impulse oscillometry. Overweight contributed more to the reduction in FEV1/FVC than asthma in children without increasing airway resistance. Spirometry specificity and sensitivity for obstructive diseases may be reduced in populations with high prevalence of overweight. Adding impedance oscillometry to spirometry improves our understanding of the ventilatory abnormalities in overweight children. PMID- 29326909 TI - Association of Oxytocin and Parental Prefrontal Activation during Reunion with Infant: A Functional Near-Infrared Spectroscopy Study. AB - Although previous studies have revealed the role of oxytocin (OT) in parental behavior, the role of OT has not been investigated through the direct assessment of prefrontal brain activation during parenting. By using functional near infrared spectroscopy, we aimed to show the relationship between parental [maternal (N = 15) and paternal (N = 21)] OT levels and the activation of the prefrontal cortex (PFC), while holding their infants after separation. Baseline OT levels were measured in the subjects' saliva samples before the experiment. Prefrontal brain activation was assessed in participants sitting alone on a chair (i.e., separation from their infant for 120 s) and during the target period (i.e., holding their infant for 45 s), which was done in triplicate. The oxygen hemoglobin (oxy-Hb) dissociation curve significantly increased in 9 out of 22 channels on the PFC when maternal and paternal samples were combined. However, only the fathers showed a correlation between salivary OT and oxy-Hb signal. Furthermore, while holding their infants, high-OT fathers showed left hemispheric dominance compared to low-OT fathers, while high-OT mothers showed right hemispheric dominance compared to low-OT mothers. This study showed that fathers with high-OT levels showed neural activation with left hemispheric dominance, while holding their infants, suggesting that increase of OT level might activate paternal PFC related to parenting behavior, although the same is not true for mothers. PMID- 29326911 TI - The Functional Evaluation of Eating Difficulties Scale: Study Protocol and Validation in Infants with Neurodevelopmental Impairments and Disabilities. AB - Introduction: A reliable and accurate evaluation of oral-motor skills in newborns at risk for swallowing and feeding disorders is key to set the goals of effective early interventions. Although many tools are available to assess oral-motor skills in newborns, limited evidence exists for what pertains their reliability and their effectivity in predicting short- and long-term developmental outcomes in at-risk infants. The aim of the present study is to develop and provide a preliminary validation of a new clinically grounded tool [i.e., the Functional Evaluation of Eating Difficulties Scale (FEEDS)] specifically designed to be used with at-risk newborns and infants. The paper describes the steps of tool development and information on the reliability of the tool are provided. Methods/analysis: The FEEDS has been developed according to clinical evidence and expertise by a multidisciplinary team of professionals dealing with feeding problems in at-risk infants diagnosed with neurodevelopmental impairments and disabilities. The steps of FEEDS development are reported, together with a detailed description of items, scoring procedure, and clinical cutoff. The FEEDS has been applied to a relatively large sample of 0- to 12-month-old infants (N = 136) with neurodevelopmental disability, enrolled consecutively between 2004 and 2016 at the Scientific Institute IRCCS Eugenio Medea (Bosisio Parini, Italy), which is the main rehabilitation hospital for children with neurodevelopmental disabilities in Italy. Internal consistency (Cronbach's alpha) and reliability (inter-rater agreement) have been assessed. Ethics and dissemination: All the procedures are consistent with the World Medical Association Declaration of Helsinki (2013) and the FEEDS has been approved by the clinical committee of the Scientific Institute IRCCS Eugenio Medea. Further psychometric characteristics and evidence of the predictive validity of the FEEDS will be obtained on a larger sample and they will be reported in future publications from this group. PMID- 29326910 TI - Is Autosomal Dominant Polycystic Kidney Disease Becoming a Pediatric Disorder? AB - Autosomal dominant polycystic kidney disease (ADPKD) affects 1 in 400 to 1,000 live births, making it the most common monogenic cause of renal failure. Although no definite cure is available yet, it is important to affect disease progression by influencing modifiable factors such as hypertension and proteinuria. Besides this symptomatic management, the only drug currently recommended in Europe for selected adult patients with rapid disease progression, is the vasopressin receptor antagonist tolvaptan. However, the question remains whether these preventive interventions should be initiated before extensive renal damage has occurred. As renal cyst formation and expansion begins early in life, frequently in utero, ADPKD should no longer be considered an adult-onset disease. Moreover, the presence of hypertension and proteinuria in affected children has been reported to correlate well with disease severity. Until now, it is controversial whether children at-risk for ADPKD should be tested for the presence of the disease, and if so, how this should be done. Herein, we review the spectrum of pediatric ADPKD and discuss the pro and contra of testing at-risk children and the challenges and unmet needs in pediatric ADPKD care. PMID- 29326912 TI - Antenatal Consultation and Postnatal Stress in Mothers of Preterm Neonates (A Two Center Observational Case-Control Study). AB - Background: During antenatal consultation of women hospitalized for preterm labor, information of possible adverse outcomes is provided. This may however create additional maternal stress and raise some ethical concerns. Objective: The aim of the present study was to evaluate the influence of antenatal consultation by a neonatologist on maternal stress after delivery of a preterm infant admitted to NICU. Methods: In this study, secondary outcome parameters of a prospective two-center pilot observational study were analyzed. Mothers of preterm neonates < 36 weeks of gestation admitted at two tertiary-level Neonatal-Intensive-Care Units (NICU) were included. Maternal stress was assessed with the Parental-Stress Scale:NICU (PSS:NICU) within 72 h after birth. PSS:NICU measures three scales: "relationship and parental role," "sights and sounds," and "baby looks and behaves." Maternal sociodemographic data were collected by questionnaire administered at the same time. Mothers who received antenatal neonatal consultation were matched for gestational age and compared to mothers who had no antenatal consultation by a neonatologist. Results: A total of 46 mothers of preterm neonates were included, 23 mothers in each group. There was no significant difference in sociodemographic data between the two groups regarding neonates and mothers. There were no significant differences between the two groups regarding stress scales of "sights and sounds" (2.00 +/- 0.76 versus 2.19 +/- 0.79; p = 0.402), "looks and behaves" (2.55 +/- 0.90 versus 2.48 +/- 0.94; p = 0.732) and "relationship and parental role" (3.28 +/- 1.23 versus 3.46 +/- 1.07; p = 0.517). Conclusion: Our study demonstrated that antenatal consultation by a neonatologist had no substantial influence on postnatal maternal stress in mothers of preterm neonates admitted to the NICU. PMID- 29326914 TI - Adolescents' Experiences and Their Suggestions for HIV Serostatus Disclosure in Zambia: A Mixed-Methods Study. AB - Background: HIV serostatus disclosure is an immense challenge for adolescents living with HIV, their caregivers, and health workers. In Zambia, however, little guidance is available from the adolescents' point of view on the HIV disclosure process. Objective: This study aimed to examine the setting of HIV serostatus disclosure for adolescents, its impacts on them, and their suggestions on the best practice of HIV disclosure. Methods: We conducted a mixed-methods study at the University Teaching Hospital in Zambia from April to July 2014. We recruited 200 adolescents living with HIV, aged 15-19 years. We collected data using a structured questionnaire including two open-ended questions. We excluded two adolescents due to withdrawal during the survey, and eight from the data set due to out-of-eligibility criteria in age. Eventually, we included 190 in the analysis. We performed descriptive analysis to calculate the distributions of basic characteristics of the adolescents, their experience and preference on HIV serostatus disclosure, its emotional and behavioral impacts, and health education topics they had ever learned at hospital. We performed thematic analysis with open-ended data to explain first impressions upon disclosure in detail and to determine perceived advantages of HIV serostatus disclosure. Results: The majority of adolescents recommended the age of 12 as appropriate for adolescents to learn about their HIV serostatus and preferred disclosure by both parents. Out of 190 adolescents, 73.2% had negative or mixed feelings about HIV serostatus disclosure, while 86.2% reported that disclosure was beneficial. Thematic analyses showed that the adolescents reacted emotionally due to an unexpected disclosure and a belief of imminent death from HIV. However, they improved adherence to treatment (84.7%), limited self-disclosure of their HIV serostatus to others (81.1%), and felt more comfortable in talking about HIV with their caregivers (54.2%). Thematic analysis identified perceived benefits of disclosure as follows: better understanding of their sickness and treatment, and improved self-care and treatment adherence. Lower percentage of the adolescents have learned about psychosocial well-being, compared to facts about HIV and treatment. Conclusion: Despite initial emotional distress experienced after the disclosure, knowing one's own HIV serostatus was found to be a crucial turning point for adolescents to improve motivation for self-care. HIV serostatus disclosure to adolescents requires follow-up support involving parents/primary caregivers, health workers, and peers. PMID- 29326913 TI - The Genetic and Cellular Basis of Autosomal Dominant Polycystic Kidney Disease-A Primer for Clinicians. AB - Autosomal dominant polycystic kidney disease (ADPKD) is one of the most common genetic disorders worldwide. In recent decades, the field has undergone a revolution, starting with the identification of causal ADPKD genes, including PKD1, PKD2, and the recently identified GANAB. In addition, advances defining the genetic mechanisms, protein localization and function, and the identification of numerous pathways involved in the disease process, have contributed to a better understanding of this illness. Together, this has led to a better prognosis, diagnosis, and treatment in clinical practice. In this mini review, we summarize and discuss new insights about the molecular mechanisms underlying ADPKD, including its genetics, protein function, and cellular pathways. PMID- 29326915 TI - Survival Mediterranean Style: Lifestyle Changes to Improve the Health of the US Fire Service. AB - Cardiovascular disease (CVD) causes almost half of all on-duty deaths in US firefighters and is an important and costly cause of morbidity. In addition, cancer is a growing health concern in this population. Obesity and obesity associated, cardiometabolic risk clustering are major, modifiable risk factors for fire service CVD and cancer risk. The Mediterranean diet (MedDiet) is proven effective in primary and secondary CVD prevention. It is also associated with a decreased risk of cancer and other chronic diseases. Moreover, it can be adapted into successful workplace interventions. Emerging data from our group regarding the US Fire Service show that greater compliance with the MedDiet is associated with improved CVD risk profiles and less weight gain among career firefighters. Moreover, the fact that career firefighters take a considerable number of meals communally on the job also represents an excellent opportunity for a workplace Mediterranean Diet Nutritional Intervention (MDNI). The devastating effects of obesity, CVD, and cancer on the US fire service are recognized, but currently few effective preventive programs exist. The consistently positive health benefits from following a MedDiet and promising preliminary data in the fire service justify translational research to determine the most effective means of delivering MDNIs to US firefighters. Therefore, a high priority should be assigned to efforts, which can help further disseminate and implement our program of novel behavior change strategies, "Survival Mediterranean Style," throughout the US fire service and eventually to other occupations. PMID- 29326916 TI - Development of the Social Network-Based Intervention "Powerful Together with Diabetes" Using Intervention Mapping. AB - This article describes the development of the social network-based intervention Powerful Together with Diabetes which aims to improve diabetes self-management (DSM) among patients with type 2 diabetes living in socioeconomically deprived neighborhoods by stimulating social support for DSM and diminishing social influences hindering DSM (e.g., peer pressure and social norms). The intervention was specifically developed for patients with Dutch, Turkish, Moroccan, and Surinamese backgrounds. The intervention was developed according to Intervention Mapping. This article describes the first four steps of Intervention Mapping: (1) the needs assessment; (2) development of performance and change objectives; (3) selection of theory-based methods and strategies; and (4) the translation of these into an organized program. These four steps resulted in Powerful Together with Diabetes, a 10-month group-based intervention consisting of 24 meetings, 6 meetings for significant others, and 2 meetings for participants and their spouses. The IM method resulted in a tailored approach with a specific focus on the social networks of its participants. This article concludes that the IM method helped our planning team to tailor the intervention to the needs of our target population and facilitated our evaluation design. However, in hindsight, the intervention could have been improved by investing more in participatory planning and community involvement. PMID- 29326918 TI - "How Do We Start? And How Will They React?" Disclosing to Young People with Perinatally Acquired HIV in Uganda. AB - Despite great advances in pediatric HIV care, rates and the extent of full disclosure of HIV status to infected children remain low especially in resource constrained setting. The World Health Organisation recommends that, by the age of 10-12 years old, children should be made fully aware of their HIV-positive status. However, this awareness is often delayed until much later in their adolescence. Few studies have been conducted to investigate what influences caregivers' decision-making process in this regard in low-income settings. In this article, we present an analysis of care dyads of caregivers and HIV-positive young people in Kampala, Uganda, as part of the findings of a longitudinal qualitative study about young people's adherence to antiretroviral therapy embedded in an international clinical trial (BREATHER). Repeat in-depth interviews were conducted with 26 young people living with HIV throughout the course of the trial, and once-off interviews with 16 of their caregivers were also carried out toward the end of the trial. In this article, we examine why and how caregivers decide to disclose a young person's HIV status to them and explore their feelings and dilemmas toward disclosure, as well as how young people reacted and the influence it had on their relationships with and attitudes toward their caregivers. Caregivers feared the consequences of disclosing the young person's positive status to them and disclosure commonly occurred hurriedly in response to a crisis, rather than as part of an anticipated and planned process. A key impediment to disclosure was that caregivers feared that disclosing would damage their relationships with the young people and commonly used this as a reason to continue to postpone disclosure. However, young people did not report prolonged feelings of blame or anger toward their caregivers about their own infection, but they did express frustration at the delay and obfuscation surrounding the disclosure process. Our findings can inform the ways in which mainstream HIV services support caregivers through the disclosure process. This includes providing positive encouragement to disclose fully and to be more confident in initiating and sustaining the timely process of disclosure. PMID- 29326917 TI - Baseline Preferences for Daily, Event-Driven, or Periodic HIV Pre-Exposure Prophylaxis among Gay and Bisexual Men in the PRELUDE Demonstration Project. AB - Introduction: The effectiveness of daily pre-exposure prophylaxis (PrEP) is well established. However, there has been increasing interest in non-daily dosing schedules among gay and bisexual men (GBM). This paper explores preferences for PrEP dosing schedules among GBM at baseline in the PRELUDE demonstration project. Materials and methods: Individuals at high-risk of HIV were enrolled in a free PrEP demonstration project in New South Wales, Australia, between November 2014 and April 2016. At baseline, they completed an online survey containing detailed behavioural, demographic, and attitudinal questions, including their ideal way to take PrEP: daily (one pill taken every day), event-driven (pills taken only around specific risk events), or periodic (daily dosing during periods of increased risk). Results: Overall, 315 GBM (98% of study sample) provided a preferred PrEP dosing schedule at baseline. One-third of GBM expressed a preference for non-daily PrEP dosing: 20% for event-driven PrEP, and 14% for periodic PrEP. Individuals with a trade/vocational qualification were more likely to prefer periodic to daily PrEP [adjusted odds ratio (aOR) = 4.58, 95% confidence intervals (95% CI): (1.68, 12.49)], compared to individuals whose highest level of education was high school. Having an HIV-positive main regular partner was associated with strong preference for daily, compared to event-driven PrEP [aOR = 0.20, 95% CI: (0.04, 0.87)]. Participants who rated themselves better at taking medications were more likely to prefer daily over periodic PrEP [aOR = 0.39, 95% CI: (0.20, 0.76)]. Discussion: Individuals' preferences for PrEP schedules are associated with demographic and behavioural factors that may impact on their ability to access health services and information about PrEP and patterns of HIV risk. At the time of data collection, there were limited data available about the efficacy of non-daily PrEP schedules, and clinicians only recommended daily PrEP to study participants. Further research investigating how behaviours and PrEP preferences change correspondingly over time is needed. Trial registration: ClinicalTrials.gov NCT02206555. Registered 28 July 2014. PMID- 29326919 TI - Exposure Assessment and Biomonitoring of Workers in Magnetic Resonance Environment: An Exploratory Study. AB - Magnetic resonance imaging (MRI) has evolved rapidly over the past few decades as one of the most flexible tools in medical research and diagnostic imaging. MRI facilities are important sources of multiple exposure to electromagnetic fields for both patients and health-care staff, due to the presence of electromagnetic fields of multiple frequency ranges, different temporal variations, and field strengths. Due to the increasing use and technological advancements of MRI systems, clearer insights into exposure assessment and a better understanding of possible harmful effects due to long-term exposures are highly needed. In the present exploratory study, exposure assessment and biomonitoring of MRI workers at the Radio-diagnostics Unit of the National Cancer Institute of Naples "Pascale Foundation" (Naples, Italy) have been carried out. In particular, exposure to the MRI static magnetic field (SMF) has been evaluated by means of personal monitoring, while an application tool has been developed to provide an estimate of motion-induced, time-varying electric fields. Measurement results have highlighted a high day-to-day and worker-to-worker variability of the exposure to the SMF, which strongly depends on the characteristics of the environment and on personal behaviors, and the developed application tool can be adopted as an easy to-use tool for rapid and qualitative evaluation of motion-induced, time-varying electric field exposure. Regarding biomonitoring, the 24 workers of the Radio diagnostics Unit were enrolled to evaluate both spontaneous and mitomycin C induced chromosomal fragility in human peripheral blood lymphocytes, by means of the cytokinesis-block micronucleus assay. The study subjects were 12 MRI workers, representative of different professional categories, as the exposed group, and 12 workers with no MRI exposure history, as the reference group. The results show a high worker-to-worker variability for both field exposure assessment and biomonitoring, as well as several critical issues and practicalities to be faced with in this type of investigations. The procedures for risk assessment and biomonitoring proposed here can be used to inform future research in this field, which will require a refinement of exposure assessment methods and an enlargement of the number of subjects enrolled in the biomonitoring study to gain robust statistics and reliable results. PMID- 29326920 TI - The Diabetes Management Education Program in South Texas: An Economic and Clinical Impact Analysis. AB - Introduction: Diabetes is a major chronic disease that can lead to serious health problems and high healthcare costs without appropriate disease management and treatment. In the United States, the number of people diagnosed with diabetes and the cost for diabetes treatment has dramatically increased over time. To improve patients' self-management skills and clinical outcomes, diabetes management education (DME) programs have been developed and operated in various regions. Objective: This community case study explores and calculates the economic and clinical impacts of expanding a model DME program into 26 counties located in South Texas. Methods: The study sample includes 355 patients with type 2 diabetes and a follow-up hemoglobin A1c level measurement among 1,275 individuals who participated in the DME program between September 2012 and August 2013. We used the Gilmer's cost differentials model and the United Kingdom Prospective Diabetes Study (UKPDS) Risk Engine methodology to predict 3-year healthcare cost savings and 10-year clinical benefits of implementing a DME program in the selected 26 Texas counties. Results: Changes in estimated 3-year cost and the estimated treatment effect were based on baseline hemoglobin A1c level. An average 3-year reduction in medical treatment costs per program participant was $2,033 (in 2016 dollars). The total healthcare cost savings for the 26 targeted counties increases as the program participation rate increases. The total projected cost saving ranges from $12 million with 5% participation rate to $185 million with 75% participation rate. A 10-year outlook on additional clinical benefits associated with the implementation and expansion of the DME program at 60% participation is estimated to result in approximately 4,838 avoided coronary heart disease cases and another 392 cases of avoided strokes. Conclusion: The implementation of this model DME program in the selected 26 counties would contribute to substantial healthcare cost savings and clinical benefits. Organizations that provide DME services may benefit from reduction in medical treatment costs and improvement in clinical outcomes for populations with diabetes. PMID- 29326921 TI - Survey on the Use of Whole-Genome Sequencing for Infectious Diseases Surveillance: Rapid Expansion of European National Capacities, 2015-2016. AB - Whole-genome sequencing (WGS) has become an essential tool for public health surveillance and molecular epidemiology of infectious diseases and antimicrobial drug resistance. It provides precise geographical delineation of spread and enables incidence monitoring of pathogens at genotype level. Coupled with epidemiological and environmental investigations, it delivers ultimate resolution for tracing sources of epidemic infections. To ascertain the level of implementation of WGS-based typing for national public health surveillance and investigation of prioritized diseases in the European Union (EU)/European Economic Area (EEA), two surveys were conducted in 2015 and 2016. The surveys were designed to determine the national public health reference laboratories' access to WGS and operational WGS-based typing capacity for national surveillance of selected foodborne pathogens, antimicrobial-resistant pathogens, and vaccine preventable diseases identified as priorities for European genomic surveillance. Twenty-eight and twenty-nine out of the 30 EU/EEA countries participated in the survey in 2015 and 2016, respectively. National public health reference laboratories in 22 and 25 countries had access to WGS-based typing for public health applications in 2015 and 2016, respectively. Reported reasons for limited or no access were lack of funding, staff, and expertise. Illumina technology was the most frequently used followed by Ion Torrent technology. The access to bioinformatics expertise and competence for routine WGS data analysis was limited. By mid-2016, half of the EU/EEA countries were using WGS analysis either as first- or second-line typing method for surveillance of the pathogens and antibiotic resistance issues identified as EU priorities. The sampling frame as well as bioinformatics analysis varied by pathogen/resistance issue and country. Core genome multilocus allelic profiling, also called cgMLST, was the most frequently used annotation approach for typing bacterial genomes suggesting potential bioinformatics pipeline compatibility. Further capacity development for WGS-based typing is ongoing in many countries and upon consolidation and harmonization of methods should enable pan-EU data exchange for genomic surveillance in the medium-term subject to the development of suitable data management systems and appropriate agreements for data sharing. PMID- 29326922 TI - Patterns and Gaps Identified in a Systematic Review of the Hepatitis C Virus Care Continuum in Studies among People Who Use Drugs. AB - Introduction: Systematic reviews are useful for synthesizing data on various health conditions and for identifying gaps in available data. In the US, the main risk group for hepatitis C virus (HCV) infection is people who use drugs (PWUD); as a group, PWUD have the highest prevalence of chronic HCV. While the care continuum construct has been increasingly applied to studies of HCV care among PWUD, what constitutes the steps in an HCV care continuum is not standardized. We sought to examine the range of HCV care continuum outcomes that studies reported on, to identify gaps in the literature, and to develop strategies that allowed for valuable syntheses of care continuum data. Methods: We conducted searches of electronic databases for published literature. Reports were eligible if they provided original data from 1990 to 2016 from the US, presented data on one or more HCV care continuum outcomes, and provided outcome data on PWUD as a distinct group. Results: A total of 313 full-text reports were assessed for eligibility. Of 212 potentially eligible reports, 32 (15.1%) did not present outcomes for PWUD separately from those who were non-PWUD. Among 101 eligible reports, a total of 166 care continuum outcomes were extracted; outcomes could be grouped into three categories that represent the HCV care continuum: testing (39.8%, n = 66/166); linkage to care (16.9%, n = 28/166); and treatment (43.4%, n = 72/166). Seventy four reports (73.3%, n = 74/101) presented data on only one step. Linkage to care occurred variably after only antibody, or after antibody and viral load (VL) testing. Six (5.9%, n = 6/101) reports presented data on all three steps. Conclusion: Reports examined a variety of HCV care continuum outcomes that could be grouped into the three steps of testing, linkage to care, and treatment. The application of this care continuum model would facilitate subsequent data synthesis for program comparison and public health evaluation. Given the two-step nature of HCV testing, analyses also need to account for variation in whether linkage to care occurred after antibody testing or after sequential antibody and VL testing. Additional data are needed on the progression of PWUD through the entire care continuum. PMID- 29326924 TI - Influence of the Chemical Structure on Odor Qualities and Odor Thresholds of Halogenated Guaiacol-Derived Odorants. AB - Chlorinated guaiacol derivatives are found in waste water of pulp mills using chlorine in the bleaching process of wood pulp. They can also be detected in fish tissue, possibly causing off-odors. To date, there is no systematic investigation on the odor properties of halogenated guaiacol derivatives. To close this gap, odor thresholds in air and odor qualities of 14 compounds were determined by gas chromatography-olfactometry. Overall, the investigated compounds elicited smells that are characteristic for guaiacol, namely smoky, sweet, vanilla-like, but also medicinal and plaster-like. Their odor thresholds in air were, however, very low, ranging from 0.00072 to 23 ng/Lair. The lowest thresholds were found for 5-chloro and 5-bromoguaiacol, followed by 4,5-dichloro- and 6-chloroguaiacol. Moreover, some inter-individual differences in odor threshold values could be observed, with the highest variations having been recorded for the individual values of 5 iodo- and 4-bromoguaiacol. PMID- 29326923 TI - Inorganic Nanocrystals Functionalized Mesoporous Silica Nanoparticles: Fabrication and Enhanced Bio-applications. AB - Mesoporous SiO2 nanoparticles (MSNs) are one of the most promising materials for bio-related applications due to advantages such as good biocompatibility, tunable mesopores, and large pore volume. However, unlike the inorganic nanocrystals with abundant physical properties, MSNs alone lack functional features. Thus, they are not sufficiently suitable for bio-applications that require special functions. Consequently, MSNs are often functionalized by incorporating inorganic nanocrystals, which provide a wide range of intriguing properties. This review focuses on inorganic nanocrystals functionalized MSNs, both their fabrication and bio-applications. Some of the most utilized methods for coating mesoporous silica (mSiO2) on nanoparticles were summarized. Magnetic, fluorescence and photothermal inorganic nanocrystals functionalized MSNs were taken as examples to demonstrate the bio-applications. Furthermore, asymmetry of MSNs and their effects on functions were also highlighted. PMID- 29326925 TI - Photodegradation of Rhodamine B over Biomass-Derived Activated Carbon Supported CdS Nanomaterials under Visible Irradiation. AB - A family of new composite materials was successfully prepared through the deposition of as-synthesized CdS nanomaterials on lotus-seedpod-derived activated carbon (SAC). The SAC supports derived at different activation temperatures exhibited considerably large surface areas and various microstructures that were of great importance in enhancing photocatalytic performance of CdS@SAC composite materials toward the photodegradation of rhodamine B (RhB) under visible irradiation. The best-performing CdS@SAC-800 showed excellent photocatalytic activity with a rate constant of ca. 2.40 * 10-2 min-1, which was approximately 13 times higher than that of the CdS nanomaterials. Moreover, the estimated band gap energy of CdS@SAC-800 was significantly lowered down to 1.99 eV compared to that of the CdS precursor (2.22 eV), which suggested considerable strength of interface contact between the CdS and SAC support, as well as efficient light harvesting capacity of the composite material. Further photocatalytic study indicated that the SAC supports enhanced the separation of photogenerated electrons and holes in this system. Improved photocatalytic activity of the composite materials was largely due to the increased generation of catalytically active species such as h+, OH*, [Formula: see text] etc. This work provided a facile and low-cost pathway to fabricate photocatalysts for viable degradation of organic dye molecules. PMID- 29326926 TI - Neuromechanical Cost Functionals Governing Motor Control for Early Screening of Motor Disorders. AB - Developing a quantifier of the neural control of motion is extremely useful in characterizing motor disorders and personalizing the model equations using data. We approach this problem using a top-down optimal control methodology, with an aim that the quantity estimated from the collected data is representative of the underlying neural controller. For this purpose, we assume that during the flexion of an arm, human brain optimizes a functional. A functional is defined as a function of a function that returns a scalar. Generally, in forward problems, this functional is chosen to be a function of metabolic energy spent, jerkiness, variance of motion, etc., integrated throughout the trajectory of motion. Current states (angular configuration and velocity) and torque applied can approximately determine the motion of a joint. Therefore, any internal cost functional optimized by the brain has to have its effect in the control of the torque. In this work, we study the flexion of the arm in normals and patient groups and intend to find the cost functionals governing the motion. To achieve this, we parametrize the cost functional governing the motion into the variables thetap and omegap , which are then estimated using marker data obtained from the subjects. These parameters are shown to vary significantly for the normal and patient populations. The thetap values were shown to be significantly higher in the case of patients than in the case of normals and omegap values showed an exactly opposite trend. We also studied how these cost functionals govern the applied torques in both subject groups and how is it affected while perturbed with sinusoidal frequencies. A time frequency analysis of the resulting solutions revealed a distinguishing pattern for the normals compared with the patient groups. PMID- 29326927 TI - Nanoparticles-Emerging Potential for Managing Leukemia and Lymphoma. AB - Nanotechnology has become a powerful approach to improve the way we diagnose and treat cancer. In particular, nanoparticles (NPs) possess unique features for enhanced sensitivity and selectivity for earlier detection of circulating cancer biomarkers. In vivo, NPs enhance the therapeutic efficacy of anticancer agents when compared with conventional chemotherapy, improving vectorization and delivery, and helping to overcome drug resistance. Nanomedicine has been mostly focused on solid cancers due to take advantage from the enhanced permeability and retention (EPR) effect experienced by tissues in the close vicinity of tumors, which enhance nanomedicine's accumulation and, consequently, improve efficacy. Nanomedicines for leukemia and lymphoma, where EPR effect is not a factor, are addressed differently from solid tumors. Nevertheless, NPs have provided innovative approaches to simple and non-invasive methodologies for diagnosis and treatment in liquid tumors. In this review, we consider the state of the art on different types of nanoconstructs for the management of liquid tumors, from preclinical studies to clinical trials. We also discuss the advantages of nanoplatforms for theranostics and the central role played by NPs in this combined strategy. PMID- 29326929 TI - Improvement of Xylose Fermentation Ability under Heat and Acid Co-Stress in Saccharomyces cerevisiae Using Genome Shuffling Technique. AB - Xylose-assimilating yeasts with tolerance to both fermentation inhibitors (such as weak organic acids) and high temperature are required for cost-effective simultaneous saccharification and cofermentation (SSCF) of lignocellulosic materials. Here, we demonstrate the construction of a novel xylose-utilizing Saccharomyces cerevisiae strain with improved fermentation ability under heat and acid co-stress using the drug resistance marker-aided genome shuffling technique. The mutagenized genome pools derived from xylose-utilizing diploid yeasts with thermotolerance or acid tolerance were shuffled by sporulation and mating. The shuffled strains were then subjected to screening under co-stress conditions of heat and acids, and the hybrid strain Hyb-8 was isolated. The hybrid strain displayed enhanced xylose fermentation ability in comparison to both parental strains under co-stress conditions of heat and acids. Hyb-8 consumed 33.1 +/- 0.6 g/L xylose and produced 11.1 +/- 0.4 g/L ethanol after 72 h of fermentation at 38 degrees C with 20 mM acetic acid and 15 mM formic acid. We also performed transcriptomic analysis of the hybrid strain and its parental strains to screen for key genes for multiple stress tolerances. We found that 13 genes, including 5 associated with cellular transition metal ion homeostasis, were significantly upregulated in Hyb-8 compared to levels in both parental strains under co-stress conditions. The hybrid strain Hyb-8 has strong potential for cost-effective SSCF of lignocellulosic materials. Moreover, the transcriptome data gathered in this study will be useful for understanding the mechanisms of multiple tolerance to high temperature and acids in yeast and facilitate the development of robust yeast strains for SSCF. PMID- 29326928 TI - Smart Materials Meet Multifunctional Biomedical Devices: Current and Prospective Implications for Nanomedicine. AB - With the increasing advances in the fabrication and in monitoring approaches of nanotechnology devices, novel materials are being synthesized and tested for the interaction with biological environments. Among them, smart materials in particular provide versatile and dynamically tunable platforms for the investigation and manipulation of several biological activities with very low invasiveness in hardly accessible anatomical districts. In the following, we will briefly recall recent examples of nanotechnology-based materials that can be remotely activated and controlled through different sources of energy, such as electromagnetic fields or ultrasounds, for their relevance to both basic science investigations and translational nanomedicine. Moreover, we will introduce some examples of hybrid materials showing mutually beneficial components for the development of multifunctional devices, able to simultaneously perform duties like imaging, tissue targeting, drug delivery, and redox state control. Finally, we will highlight challenging perspectives for the development of theranostic agents (merging diagnostic and therapeutic functionalities), underlining open questions for these smart nanotechnology-based devices to be made readily available to the patients in need. PMID- 29326931 TI - Editorial: Molecular Organization of Membranes: Where Biology Meets Biophysics. PMID- 29326932 TI - Editorial: Determinants of Cell Size. PMID- 29326930 TI - RUNX1 Mutations in Inherited and Sporadic Leukemia. AB - RUNX1 is a recurrently mutated gene in sporadic myelodysplastic syndrome and leukemia. Inherited mutations in RUNX1 cause familial platelet disorder with predisposition to acute myeloid leukemia (FPD/AML). In sporadic AML, mutations in RUNX1 are usually secondary events, whereas in FPD/AML they are initiating events. Here we will describe mutations in RUNX1 in sporadic AML and in FPD/AML, discuss the mechanisms by which inherited mutations in RUNX1 could elevate the risk of AML in FPD/AML individuals, and speculate on why mutations in RUNX1 are rarely, if ever, the first event in sporadic AML. PMID- 29326933 TI - Perioperative Management of a Patient with Cold Urticaria. AB - Cold urticaria consists of an allergic immune response to cold temperatures with symptoms ranging from pruritic wheals to life-threatening angioedema, bronchospasm, or anaphylactic shock. Adequate planning to maintain normothermia perioperatively is vital due to impaired hypothalamic thermoregulation and overall depression of sympathetic outflow during deep sedation and general anesthesia. This case report describes the successful perioperative management of a 45-year-old female with a history of cold urticaria undergoing a laparoscopic Nissen fundoplication for refractory gastroesophageal reflux disease and discusses how to appropriately optimize the care of these patients. PMID- 29326934 TI - Exploring the Link between Uric Acid and Osteoarthritis. AB - Both gout and osteoarthritis (OA) are common forms of arthritis that inflict a huge burden to an aging population with the increasing prevalence of obesity. Clinicians have long observed the link between these two conditions. In this review, we summarize the evidence from epidemiologic and immunological studies that described the possible relationship between the two conditions. The recent new understanding on monosodium uric acid crystal-induced inflammation has given insight into probable shared pathogenesis pathways for both conditions. We describe the potential therapeutic implications, particularly regarding the possibility of repurposing traditional gout medications for use in OA. PMID- 29326935 TI - Integrating Patient Perspectives into Personalized Medicine in Idiopathic Pulmonary Fibrosis. AB - Idiopathic pulmonary fibrosis (IPF) is a progressive and ultimately fatal disease which has a major impact on patients' quality of life (QOL). Except for lung transplantation, there is no curative treatment option. Fortunately, two disease modifying drugs that slow down disease decline were recently approved. Though this is a major step forward, these drugs do not halt or reverse the disease, nor convincingly improve health-related QOL. In daily practice, disease behavior and response to therapy greatly vary among patients. It is assumed that this is related to the multiple biological pathways and complex interactions between genetic, molecular, and environmental factors that are involved in the pathogenesis of IPF. Recently, research in IPF has therefore started to focus on developing targeted therapy through identifying genetic risk factors and biomarkers. In this rapidly evolving field of personalized medicine, patient factors such as lifestyle, comorbidities, preferences, and experiences with medication should not be overlooked. This review describes recent insights and methods on how to integrate patient perspectives into personalized medicine. Furthermore, it provides an overview of the most used patient-reported outcome measures in IPF, to facilitate choices for both researchers and clinicians when incorporating the patient voice in their research and care. To enhance truly personalized treatment in IPF, biology should be combined with patient perspectives. PMID- 29326936 TI - Characterisation of Physical Frailty and Associated Physical and Functional Impairments in Mild Cognitive Impairment. AB - Objective: To characterize the physical frailty phenotype and its associated physical and functional impairments in mild cognitive impairment (MCI). Method: Participants with MCI (N = 119), normal low cognition (NLC, N = 138), and normal high cognition (NHC, N = 1,681) in the Singapore Longitudinal Ageing Studies (SLAS-2) were compared on the prevalence of physical frailty, low lean body mass, weakness, slow gait, exhaustion and low physical activity, and POMA balance and gait impairment and fall risk. Results: There were significantly higher prevalence of frailty in MCI (18.5%), than in NLC (8.0%) and NHC (3.9%), and pre frailty in MCI (54.6%), NLC (52.9%) than in NHC (48.0%). Age, sex, and ethnicity adjusted OR (95% CI) of association with MCI (versus NHC) for frailty were 4.65 (2.40-9.04) and for pre-frailty, 1.67 (1.07-2.61). Similar significantly elevated prevalence and adjusted ORs of association with MCI were observed for frailty associated physical and functional impairments. Further adjustment for education, marital status, living status, comorbidities, and GDS significantly reduced the OR estimates. However, the OR estimates remained elevated for frailty: 3.86 (1.83 8.17), low body mass: 1.70 (1.08-2.67), slow gait: 1.84 (1.17-2.89), impaired gait: 4.17 (1.98-8.81), and elevated fall risk 3.42 (1.22-9.53). Conclusion: Two thirds of MCI were physically frail or pre-frail, most uniquely due to low lean muscle mass, slow gait speed, or balance and gait impairment. The close associations of frailty and physical and functional impairment with MCI have important implications for improving diagnostic acuity of MCI and targetting interventions among cognitively frail individuals to prevent dementia and disability. PMID- 29326937 TI - Removal of the C-Terminal Domains of ADAMTS13 by Activated Coagulation Factor XI induces Platelet Adhesion on Endothelial Cells under Flow Conditions. AB - Platelet recruitment to sites of vascular injury is mediated by von Willebrand factor (VWF). The shear-induced unraveling of ultra-large VWF multimers causes the formation of a "stringlike" conformation, which rapidly recruits platelets from the bloodstream. A disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13 (ADAMTS13) regulates this process by cleaving VWF to prevent aberrant platelet adhesion; it is unclear whether the activity of ADAMTS13 itself is regulated. The serine proteases alpha-thrombin and plasmin have been shown to cleave ADAMTS13. Based on sequence homology, we hypothesized that activated coagulation factor XI (FXIa) would likewise cleave ADAMTS13. Our results show that FXIa cleaves ADAMTS13 at the C-terminal domains, generating a truncated ADAMTS13 with a deletion of part of the thrombospondin type-1 domain and the CUB1-2 domains, while alpha-thrombin cleaves ADAMTS13 near the CUB1-2 domains and plasmin cleaves ADAMTS13 at the metalloprotease domain and at the C terminal domain. Using a cell surface immunoassay, we observed that FXIa induced the deletion of the CUB1-2 domains from ADAMTS13 on the surface of endothelial cells. Removal of the C-terminal domain of ADAMTS13 by FXIa or alpha-thrombin caused an increase in ADAMTS13 activity as measured by a fluorogenic substrate (FRETS) and blocked the ability of ADAMTS13 to cleave VWF on the endothelial cell surface, resulting in persistence of VWF strands and causing an increase in platelet adhesion under flow conditions. We have demonstrated a novel mechanism for coagulation proteinases including FXIa in regulating ADAMTS13 activity and function. This may represent an additional hemostatic function by which FXIa promotes local platelet deposition at sites of vessel injury. PMID- 29326938 TI - Key Triggers of Osteoclast-Related Diseases and Available Strategies for Targeted Therapies: A Review. AB - Osteoclasts, the only cells with bone resorption functions in vivo, maintain the balance of bone metabolism by cooperating with osteoblasts, which are responsible for bone formation. Excessive activity of osteoclasts causes many diseases such as osteoporosis, periprosthetic osteolysis, bone tumors, and Paget's disease. In contrast, osteopetrosis results from osteoclast deficiency. Available strategies for combating over-activated osteoclasts and the subsequently induced diseases can be categorized into three approaches: facilitating osteoclast apoptosis, inhibiting osteoclastogenesis, and impairing bone resorption. Bisphosphonates are representative molecules that function by triggering osteoclast apoptosis. New drugs, such as tumor necrosis factor and receptor activator of nuclear factor kappa-B ligand (RANKL) inhibitors (e.g., denosumab) have been developed for targeting the receptor activator of nuclear factor kappa-B /RANKL/osteoprotegerin system or CSF-1/CSF-1R axis, which play critical roles in osteoclast formation. Furthermore, vacuolar (H+)-ATPase inhibitors, cathepsin K inhibitors, and glucagon-like peptide 2 impair different stages of the bone resorption process. Recently, significant achievements have been made in this field. The aim of this review is to provide an updated summary of the current progress in research involving osteoclast-related diseases and of the development of targeted inhibitors of osteoclast formation. PMID- 29326939 TI - The Amide Local Anesthetic Lidocaine in Cancer Surgery-Potential Antimetastatic Effects and Preservation of Immune Cell Function? A Narrative Review. AB - Surgical removal of the primary tumor in solid cancer is an essential component of the treatment. However, the perioperative period can paradoxically lead to an increased risk of cancer recurrence. A bimodal dynamics for early-stage breast cancer recurrence suggests a tumor dormancy-based model with a mastectomy-driven acceleration of the metastatic process and a crucial role of the immunosuppressive state during the perioperative period. Recent evidence suggests that anesthesia could also influence the progress of the disease. Local anesthetics (LAs) have long been used for their properties to block nociceptive input. They also exert anti-inflammatory capacities by modulating the liberation or signal propagation of inflammatory mediators. Interestingly, LAs can reduce viability and proliferation of many cancer cells in vitro as well. Additionally, retrospective clinical trials have suggested that regional anesthesia for cancer surgery (either with or without general anesthesia) might reduce the risk of recurrence. Lidocaine, a LA, which can be administered intravenously, is widely used in clinical practice for multimodal analgesia. It is associated with a morphine-sparing effect, reduced pain scores, and in major surgery probably also with a reduced incidence of postoperative ileus and length of hospital stay. Systemic delivery might therefore be efficient to target residual disease or reach cells able to form micrometastasis. Moreover, an in vitro study has shown that lidocaine could enhance the activity of natural killer (NK) cells. Due to their ability to recognize and kill tumor cells without the requirement of prior antigen exposure, NKs are the main actor of the innate immune system. However, several perioperative factors can reduce NK activity, such as stress, pain, opioids, or general anesthetics. Intravenous lidocaine as part of the perioperative anesthesia regimen would be of major interest for clinicians, as it might bear the potential to reduce the risk of cancer recurrence or progression patients undergoing cancer surgery. As a well-known pharmaceutical agent, lidocaine might therefore be a promising candidate for oncological drug repurposing. We urgently need clinical randomized trials assessing the protective effect of lidocaine on NKs function and against recurrence after cancer surgery to achieve a "proof of concept." PMID- 29326941 TI - Structural Validation of a French Food Frequency Questionnaire of 94 Items. AB - Background: Food frequency questionnaires (FFQs) are used to estimate the usual food and nutrient intakes over a period of time. Such estimates can suffer from measurement errors, either due to bias induced by respondent's answers or to errors induced by the structure of the questionnaire (e.g., using a limited number of food items and an aggregated food database with average portion sizes). The "structural validation" presented in this study aims to isolate and quantify the impact of the inherent structure of a FFQ on the estimation of food and nutrient intakes, independently of respondent's perception of the questionnaire. Methods: A semi-quantitative FFQ (n = 94 items, including 50 items with questions on portion sizes) and an associated aggregated food composition database (named the item-composition database) were developed, based on the self-reported weekly dietary records of 1918 adults (18-79 years-old) in the French Individual and National Dietary Survey 2 (INCA2), and the French CIQUAL 2013 food-composition database of all the foods (n = 1342 foods) declared as consumed in the population. Reference intakes of foods ("REF_FOOD") and nutrients ("REF_NUT") were calculated for each adult using the food-composition database and the amounts of foods self-reported in his/her dietary record. Then, answers to the FFQ were simulated for each adult based on his/her self-reported dietary record. "FFQ_FOOD" and "FFQ_NUT" intakes were estimated using the simulated answers and the item-composition database. Measurement errors (in %), spearman correlations and cross-classification were used to compare "REF_FOOD" with "FFQ_FOOD" and "REF_NUT" with "FFQ_NUT". Results: Compared to "REF_NUT," "FFQ_NUT" total quantity and total energy intake were underestimated on average by 198 g/day and 666 kJ/day, respectively. "FFQ_FOOD" intakes were well estimated for starches, underestimated for most of the subgroups, and overestimated for some subgroups, in particular vegetables. Underestimation were mainly due to the use of portion sizes, leading to an underestimation of most of nutrients, except free sugars which were overestimated. Conclusion: The "structural validation" by simulating answers to a FFQ based on a reference dietary survey is innovative and pragmatic and allows quantifying the error induced by the simplification of the method of collection. PMID- 29326940 TI - Flavonoids from Engineered Tomatoes Inhibit Gut Barrier Pro-inflammatory Cytokines and Chemokines, via SAPK/JNK and p38 MAPK Pathways. AB - Flavonoids are a diverse group of plant secondary metabolites, known to reduce inflammatory bowel disease symptoms. How they achieve this is largely unknown. Our study focuses on the gut epithelium as it receives high topological doses of dietary constituents, maintains gut homeostasis, and orchestrates gut immunity. Dysregulation leads to chronic gut inflammation, via dendritic cell (DC)-driven immune responses. Tomatoes engineered for enriched sets of flavonoids (anthocyanins or flavonols) provided a unique and complex naturally consumed food matrix to study the effect of diet on chronic inflammation. Primary murine colonic epithelial cell-based inflammation assays consist of chemokine induction, apoptosis and proliferation, and effects on kinase pathways. Primary murine leukocytes and DCs were used to assay effects on transmigration. A murine intestinal cell line was used to assay wound healing. Engineered tomato extracts (enriched in anthocyanins or flavonols) showed strong and specific inhibitory effects on a set of key epithelial pro-inflammatory cytokines and chemokines. Chemotaxis assays showed a resulting reduction in the migration of primary leukocytes and DCs. Activation of epithelial cell SAPK/JNK and p38 MAPK signaling pathways were specifically inhibited. The epithelial wound healing-associated STAT3 pathway was unaffected. Cellular migration, proliferation, and apoptosis assays confirmed that wound healing processes were not affected by flavonoids. We show flavonoids target epithelial pro-inflammatory kinase pathways, inhibiting chemotactic signals resulting in reduced leukocyte and DC chemotaxis. Thus, both anthocyanins and flavonols modulate epithelial cells to become hyporesponsive to bacterial stimulation. Our results identify a viable mechanism to explain the in vivo anti-inflammatory effects of flavonoids. PMID- 29326943 TI - Pseudomyxoma Peritonei: A Case Report Diagnosed in a 47-Year-Old Woman with Chronic Pelvic Abdominal Pain and Appendicular Origin: Review of the Literature and Management. AB - The authors report a case of pseudomyxoma peritonei with gelatinous peritoneum in a 47-year-old-woman. The main symptom for discovery was a chronic pelvic abdominal pain. This disease is particularly rare. The gelatinous substance is often associated with a malignant ovarian tumor or appendicitis perforated. Currently, on the whole, an exploratory laparoscopy allows diagnosis, biopsies, and appendectomy. The treatment is essentially surgical. The prognosis depends on grade (1/3) and response to chemotherapy. This case was presented to the tumor board. PMID- 29326942 TI - The Development and Public Health Implications of Food Preferences in Children. AB - Food preferences are a primary determinant of dietary intake and behaviors, and they persist from early childhood into later life. As such, establishing preferences for healthy foods from a young age is a promising approach to improving diet quality, a leading contributor to cardiometabolic health. This narrative review first describes the critical period for food preference development starting in utero and continuing through early childhood. Infants' innate aversion to sour and bitter tastes can lead them to initially reject some healthy foods such as vegetables. Infants can learn to like these foods through exposures to their flavors in utero and through breastmilk. As solid foods are introduced through toddlerhood, children's food preferences are shaped by parent feeding practices and environmental factors such as food advertising. Next, we discuss two key focus areas to improve diet quality highlighted by the current understanding of food preferences: (1) promoting healthy food preferences through breastfeeding and early exposures to healthy foods and (2) limiting the extent to which innate preferences for sweet and salty tastes lead to poor diet quality. We use an ecological framework to summarize potential points of intervention and provide recommendations for these focus areas, such as worksite benefits that promote breastfeeding, and changes in food retail and service environments. Individuals' choices around breastfeeding and diet may ultimately be influenced by policy and community-level factors. It is thus crucial to take a multilevel approach to establish healthy food preferences from a young age, which have the potential to translate into lifelong healthy diet. PMID- 29326944 TI - AB0/Rhesus Blood Group Does Not Influence Clinicopathological Tumor Characteristics or Oncological Outcome in Patients Undergoing Radical Prostatectomy. AB - Objectives: AB0 blood group is an inherited characteristic that has been associated with the incidence as well as the prognosis of several malignancies. The aim of the current study was to clarify the role of the blood group in cancer epidemiology and clinical outcome of patients with prostate cancer (PCa). Methods: Data from 3,574 patients undergoing radical prostatectomy between 2009 and 2010 at a single European institution were retrospectively analyzed. The correlation of AB0 and Rhesus blood group with PCa-related characteristics and oncological outcome were evaluated using univariable and multivariable Cox proportional hazard models. Results: Median follow-up was 36.9 months. The overall distributions of AB0, as well as Rhesus blood groups among patients with PCa, did not differ from the distribution observed in the normal population. There was no significant association between AB0/Rhesus blood groups and Gleason score, prostate volume, surgical margin, pT-stage, pN-status, or preoperative prostate-specific antigen level. In multivariable Cox regression analysis, no statistically significant correlation between AB0/Rhesus group and biochemical recurrence was observed (all p > 0.05). Conclusion: Our data suggest no relevant association of AB0/Rhesus blood group with adverse clinicopathological tumor characteristics or oncological outcome after surgery in contrast to several other malignancies. PMID- 29326945 TI - Biochemical Properties of Human D-Amino Acid Oxidase. AB - D-amino acid oxidase catalyzes the oxidative deamination of D-amino acids. In the brain, the NMDA receptor coagonist D-serine has been proposed as its physiological substrate. In order to shed light on the mechanisms regulating D serine concentration at the cellular level, we biochemically characterized human DAAO (hDAAO) in greater depth. In addition to clarify the physical-chemical properties of the enzyme, we demonstrated that divalent ions and nucleotides do not affect flavoenzyme function. Moreover, the definition of hDAAO substrate specificity demonstrated that D-cysteine is the best substrate, which made it possible to propose it as a putative physiological substrate in selected tissues. Indeed, the flavoenzyme shows a preference for hydrophobic amino acids, some of which are molecules relevant in neurotransmission, i.e., D-kynurenine, D-DOPA, and D-tryptophan. hDAAO shows a very low affinity for the flavin cofactor. The apoprotein form exists in solution in equilibrium between two alternative conformations: the one at higher affinity for FAD is favored in the presence of an active site ligand. This may represent a mechanism to finely modulate hDAAO activity by substrate/inhibitor presence. Taken together, the peculiar properties of hDAAO seem to have evolved in order to use this flavoenzyme in different tissues to meet different physiological needs related to D-amino acids. PMID- 29326947 TI - Echocardiographic Image Quality Deteriorates with Age in Children and Young Adults with Duchenne Muscular Dystrophy. AB - Background: Advances in medical care for patients with Duchenne muscular dystrophy (DMD) have resulted in improved survival and an increased prevalence of cardiomyopathy. Serial echocardiographic surveillance is recommended to detect early cardiac dysfunction and initiate medical therapy. Clinical anecdote suggests that echocardiographic quality diminishes over time, impeding accurate assessment of left ventricular systolic function. Furthermore, evidence-based guidelines for the use of cardiac imaging in DMD, including cardiac magnetic resonance imaging (CMR), are limited. The objective of our single-center, retrospective study was to quantify the deterioration in echocardiographic image quality with increasing patient age and identify an age at which CMR should be considered. Methods: We retrospectively reviewed and graded the image quality of serial echocardiograms obtained in young patients with DMD. The quality of 16 left ventricular segments in two echocardiographic views was visually graded using a binary scoring system. An endocardial border delineation percentage (EBDP) score was calculated by dividing the number of segments with adequate endocardial delineation in each imaging window by the total number of segments present in that window and multiplying by 100. Linear regression analysis was performed to model the relationship between the EBDP scores and patient age. Results: Fifty-five echocardiograms from 13 patients (mean age 11.6 years, range 3.6-19.9) were systematically reviewed. By 13 years of age, 50% of the echocardiograms were classified as suboptimal with >=30% of segments inadequately visualized, and by 15 years of age, 78% of studies were suboptimal. Linear regression analysis revealed a negative correlation between patient age and EBDP score (r = -2.49, 95% confidence intervals -4.73, -0.25; p = 0.032), with the score decreasing by 2.5% for each 1 year increase in age. Conclusion: Echocardiographic image quality declines with increasing age in DMD. Alternate imaging modalities may play a role in cases of poor echocardiographic image quality. PMID- 29326948 TI - Outer Membrane Protein 25 of Brucella Activates Mitogen-Activated Protein Kinase Signal Pathway in Human Trophoblast Cells. AB - Outer membrane protein 25 (OMP25), a virulence factor from Brucella, plays an important role in maintaining the structural stability of Brucella. Mitogen activated protein kinase (MAPK) signal pathway widely exists in eukaryotic cells. In this study, human trophoblast cell line HPT-8 and BALB/c mice were infected with Brucella abortus 2308 strain (S2308) and 2308DeltaOmp25 mutant strain. The expression of cytokines and activation of MAPK signal pathway were detected. We found that the expressions of tumor necrosis factor-alpha, interleukin-1, and interleukin-10 (IL-10) were increased in HPT-8 cells infected with S2308 and 2308DeltaOmp25 mutant. S2308 also activated p38 phosphorylation protein, extracellular-regulated protein kinases (ERK), and Jun-N-terminal kinase (JNK) from MAPK signal pathway. 2308DeltaOmp25 could not activate p38, ERK, and JNK branches. Immunohistochemistry experiments showed that S2308 was able to activate phosphorylation of p38 and ERK in BABL/c mice. However, 2308DeltaOmp25 could weakly activate phosphorylation of p38 and ERK. These results suggest that Omp25 played an important role in the process of Brucella activation of the MAPK signal pathway. PMID- 29326949 TI - Molecular Characterization and Cluster Analysis of Field Isolates of Avian Infectious Laryngotracheitis Virus from Argentina. AB - Avian infectious laryngotracheitis (ILT) is a worldwide infectious disease that causes important economic losses in the poultry industry. Although it is known that ILT virus (ILTV) is present in Argentina, there is no information about the circulating strains. With the aim to characterize them, seven different genomic regions (thymidine kinase, glycoproteins D, G, B, C, and J, and infected cell polypeptide 4) were partially sequenced and compared between field samples. The gJ sequence resulted to be the most informative segment, it allowed the differentiation among field sample strains, and also, between wild and vaccine viruses. Specific changes in selected nucleotidic positions led to the definition of five distinct haplotypes. Tests for detection of clustering were run to test the null hypothesis that ILTV haplotypes were randomly distributed in time in Argentina and in space in the most densely populated poultry region of this country, Entre Rios. From this study, it was possible to identify a 46 km radius cluster in which higher proportions of haplotypes 4 and 5 were observed, next to a provincial route in Entre Rios and a significant decline of haplotype 5 between 2009 and 2011. Results here provide an update on the molecular epidemiology of ILT in Argentina, including data on specific genome segments that may be used for rapid characterization of the virus in the field. Ultimately, results will contribute to the surveillance of ILT in the country. PMID- 29326950 TI - Microtus arvalis and Arvicola scherman: Key Players in the Echinococcus multilocularis Life Cycle. AB - A broad range of rodent species are described as potential intermediate hosts for Echinococcus multilocularis, a wide-spread zoonotic cestode causing alveolar echinococcosis. However, little is known about the relative contribution of these species for parasite reproduction and the maintenance of its life cycle. In a comparative study in a high endemic region in Zurich, Switzerland, we investigated prevalence rates and fertility of E. multilocularis in the most abundant vole species as well as the predation rate of foxes on these species. To ensure that the fox families had access to different vole species and that these voles were exposed to the same environmental contamination with parasite eggs, we selected eight study plots where at least two rodent species co-occurred. The parasite prevalence in Microtus arvalis [11.0%, confidence intervals (CI) 8.9 13.4] was significantly higher than in Arvicola scherman (5.3%, 3.9-7.1) and Myodes glareolus (3.9%, 2.0-6.7). None of the, only 29 individuals of, Microtus agrestis was infected (0%, 0.0-9.8) and the species was excluded for further analyses. Logistic regression models for the prevalences revealed significant differences between nearby study plots and higher infection rates for females, heavier individuals, and individuals trapped during spring, when the prevalence in M. arvalis peaked up to 65% (CI 50-79) in one plot. Furthermore, we detected significantly higher percentages of fertile infections in M. arvalis and M. glareolus than in A. scherman (OR 11.2 and 6.4, respectively) and a significantly higher protoscolex number in M. glareolus (median 100,000) than in M. arvalis (13,500) and A. scherman (4,290). The most abundant fox prey remains were of the genera Microtus (12.3%, CI 8.4-17.2) and Arvicola (11.5%, 7.7-16.3), whereas Myodes was never recorded as prey (0.0-1.3%). We conclude that M. arvalis and to a lesser extent A. scherman can be regarded as key intermediate hosts in Western and Central European high-endemic regions whereas M. glareolus and M. agrestis play a marginal role. We, therefore, postulate that distribution models of these species could contribute to predict parasite occurrence on a more detailed spatial scale than models of the distribution of foxes which have a very broad and uniform distribution. PMID- 29326952 TI - Recent Advances in Radiotracer Imaging Hold Potential for Future Refined Evaluation of Epilepsy in Veterinary Neurology. AB - Non-invasive nuclear imaging by positron emission tomography and single photon emission computed tomography has significantly contributed to epileptic focus localization in human neurology for several decades now. Offering functional insight into brain alterations, it is also of particular relevance for epilepsy research. Access to these techniques for veterinary medicine is becoming more and more relevant and has already resulted in first studies in canine patients. In view of the substantial proportion of drug-refractory epileptic dogs and cats, image-guided epileptic focus localization will be a prerequisite for selection of patients for surgical focus resection. Moreover, radiotracer imaging holds potential for a better understanding of the pathophysiology of underlying epilepsy syndromes as well as to forecast disease risk after epileptogenic brain insults. Importantly, recent advances in epilepsy research demonstrate the suitability and value of several novel radiotracers for non-invasive assessment of neuroinflammation, blood-brain barrier alterations, and neurotransmitter systems. It is desirable that veterinary epilepsy patients will also benefit from these promising developments in the medium term. This paper reviews the current use of radiotracer imaging in the veterinary epilepsy patient and suggests possible future directions for the technique. PMID- 29326953 TI - Hyperintensity of Cerebrospinal Fluid on T2-Weighted Fluid-Attenuated Inversion Recovery Magnetic Resonance Imaging Caused by High Inspired Oxygen Fraction. AB - In veterinary medicine, patients undergo magnetic resonance imaging (MRI) under general anesthesia to enable acquisition of artifact-free images. The fraction of inspired oxygen (FiO2) ranges between 30 and 95%. In humans, a high FiO2 is associated with incomplete signal suppression of peripheral cerebrospinal fluid (CSF) spaces on T2-weighted fluid-attenuated inversion recovery (T2w-FLAIR) sequences. The influence of FiO2 on T2w-FLAIR images remains unreported in small animals. The aim of this prospective study was to investigate whether a high FiO2 is associated with hyperintensity in peripheral CSF spaces on T2w-FLAIR images in dogs and cats. Client-owned patients undergoing brain MRI were prospectively enrolled. Animals with brain parenchymal abnormalities and/or meningeal contrast enhancement on MRI images and/or abnormal CSF analysis were excluded. Consequently, twelve patients were enrolled. Anesthesia was maintained by isoflurane 0.5-1 minimal alveolar concentration in 30% oxygen. After acquisition of transverse and dorsal T2w-FLAIR images, the FiO2 was increased to 95%. The T2w FLAIR sequences were then repeated after 40 min. Arterial blood gas analysis was performed in six patients at the same time as T2w-FLAIR sequence acquisition. Plot profiles of the signal intensity (SI) from CSF spaces of three cerebral sulci and adjacent gray and white matter were generated. SI ratios of CSF space and white matter were compared between the T2w-FLAIR images with 30 and 95% FiO2. An observer blinded to the FiO2, subjectively evaluated the SI of peripheral CSF spaces on T2w-FLAIR images as high or low. There was significant difference in the partial pressure of oxygen between the two arterial samples (P < 0.001). The SI ratios obtained from the T2w-FLAIR images with 95% FiO2 were significantly higher compared with those obtained from the T2w-FLAIR images with 30% FiO2 (P < 0.05). The peripheral CSF spaces were subjectively considered hyperintense in 11 of 12 cases on T2w-FLAIR images with 95% FiO2 (P < 0.005). A clear difference in SI, dependent on the FiO2 was seen in the peripheral CSF spaces on T2w-FLAIR images. In conclusion, the influence of FiO2 must be considered when differentiating pathological and normal CSF spaces on T2w-FLAIR images in dogs and cats. PMID- 29326951 TI - Identification of Atypical Enteropathogenic Escherichia coli O98 from Golden Snub Nosed Monkeys with Diarrhea in China. AB - Fecal samples (n = 76) were collected from 38 snub-nosed monkeys (Rhinopithecus roxellana) in Shennongjia National Nature Reserve (China) and examined for the presence of enteropathogenic Escherichia coli (EPEC). The 56 samples originated from 30 free-ranging monkeys on the reserve and 20 samples from 8 captive monkeys that were previously rescued and kept at the research center. Eight diarrhea samples were collected from four of the eight captive monkeys (two samples from each monkey), and two EPEC strains (2.6%) (95% confidence interval 0.3-9.2%) were isolated from two fecal samples from two diarrheic monkeys. Both strains belonged to serotype O98 and phylogenetic group D (TspE4C2+, ChuA+). The virulence gene detection identified these strains as an atypical EPEC (aEPEC) (bfpB - , stx1 - , and stx2-) with the subtype eae+, escV+, and intiminbeta+. These strains were highly sensitive to all the antibiotics tested. The lethal dose 50% of the two isolates in Kunming mice was 7.40 * 108 CFU/0.2 mL and 2.40 * 108 CFU/0.2 mL, respectively, indicating low virulence. Based on the report that this serotype had been isolated from some other non-human animals and humans with diarrhea, the first identification of aEPEC O98 strains and their drug resistance profile in R. roxellana is of ecological significance for disease control in this endangered species. PMID- 29326954 TI - Endoparasites of Wild Mammals Sheltered in Wildlife Hospitals and Rehabilitation Centres in Greece. AB - Wildlife parasitic diseases represent an important field of investigation as they may have a significant impact on wild animals' health and fitness, and may also have zoonotic implications. This study aimed to investigate the occurrence of endoparasites in wild mammals admitted to wildlife hospitals and rehabilitation centres in Greece. Sixty-five animals belonging to 17 species and originated from various areas of continental and insular Greece were included in the survey. The most numerous animal species examined were hedgehogs (n = 19), red foxes (n = 16), and European roe deer (n = 6). Faecal samples were collected individually and examined by floatation and sedimentation method. Parasites were found in 46 (70.7%) of the animals. Most parasites found in canids, felids, and ruminants are of great relevance to the domestic animals' health and some of them are also of zoonotic importance. To the best of the author's knowledge, this is the first report of endoparasites in hedgehogs, roe deers, fallow deers, badgers, and bats, and the first report of the pulmonary nematode Troglostrongylus brevior in a wild cat in Greece. The significance of the parasites found in each animal species in regard to their health and their relevance to domestic animals and human health is discussed. PMID- 29326946 TI - Microvesicles in Atherosclerosis and Angiogenesis: From Bench to Bedside and Reverse. AB - Atherosclerosis (AT) is a progressive chronic disease involving lipid accumulation, fibrosis, and inflammation in medium and large-sized arteries, and it is the main cause of cardiovascular disease (CVD). AT is caused by dyslipidemia and mediated by both innate and adaptive immune responses. Despite lipid-lowering drugs have shown to decrease the risk of cardiovascular events (CVEs), there is a significant burden of AT-related morbidity and mortality. Identification of subjects at increased risk for CVE as well as discovery of novel therapeutic targets for improved treatment strategies are still unmet clinical needs in CVD. Microvesicles (MVs), small extracellular plasma membrane particles shed by activated and apoptotic cells have been widely linked to the development of CVD. MVs from vascular and resident cells by facilitating exchange of biological information between neighboring cells serve as cellular effectors in the bloodstream and play a key role in all stages of disease progression. This article reviews the current knowledge on the role of MVs in AT and CVD. Attention is focused on novel aspects of MV-mediated regulatory mechanisms from endothelial dysfunction, vascular wall inflammation, oxidative stress, and apoptosis to coagulation and thrombosis in the progression and development of atherothrombosis. MV contribution to vascular remodeling is also discussed, with a particular emphasis on the effect of MVs on the crosstalk between endothelial cells and smooth muscle cells, and their role regulating the active process of AT driven angiogenesis and neovascularization. This review also highlights the latest findings and main challenges on the potential prognostic, diagnostic, and therapeutic value of cell-derived MVs in CVD. In summary, MVs have emerged as new regulators of biological functions in atherothrombosis and might be instrumental in cardiovascular precision medicine; however, significant efforts are still needed to translate into clinics the latest findings on MV regulation and function. PMID- 29326955 TI - Welfare Consequences of Omitting Beak Trimming in Barn Layers. AB - Beak trimming is used worldwide as a method of reducing the damage to feathers and skin caused by injurious pecking in laying hens. However, beak trimming also causes some welfare issues as trimming the beak results in pain and sensory loss. Due to this dilemma, there is an ongoing discussion in several European countries about whether to ban beak trimming. In this study, we investigated the welfare consequences of keeping layers with intact beaks and examined for links between injurious pecking damage and keel bone damage on an individual level. A study was conducted on 10 commercial farms housing laying hens in the barn system. Each farm participated with a flock of beak-trimmed hens (T) and a flock of non trimmed (NT) hens that were visited around 32 and 62 weeks of age. During visits, the condition of plumage, skin, feet, and keel bone of 100 hens was assessed. Mortality was recorded by the producers. NT flocks had a lower prevalence of hens with good plumage condition around 32 weeks of age (94.1 vs. 99.6%, P < 0.001) and a higher prevalence of hens with poor plumage condition at 62 weeks of age (63.6 vs. 15.2%, P < 0.001) compared with T flocks. The prevalence of hens with keel bone deviations, with both keel bone fractures and deviations and with body wounds, was higher in NT flocks compared with T flocks at both ages (P < 0.001). Accumulated mortality from placement to end of production tended to be higher in NT flocks compared with T flocks (14.2 vs. 8.6%; P = 0.06). The prevalence of keel bone damage was higher among hens with poor plumage condition than hens with moderate/good plumage condition (31.5 vs. 22.2%; P < 0.001). Thus, omitting beak trimming had negative consequences for the condition of plumage, skin, and keel bone, and tended to increase mortality, highlighting the risk of reduced welfare when keeping layers with intact beaks. In addition, injurious pecking damage was found to be positively linked to keel bone damage. The causal relation is unknown, but we propose that fearfulness is an important factor. PMID- 29326956 TI - MLVA and LPS Characteristics of Brucella canis Isolated from Humans and Dogs in Zhejiang, China. AB - Background: Brucella canis is a pathogenic bacterium that causes brucellosis in dogs, and its zoonotic potential has been increasing in recent years. B. canis is a rare source of human brucellosis in China, where Brucella melitensis has been the major pathogen associated with human brucellosis outbreaks. In late 2011, a case of a B. canis infection was detected in a human patient in Zhejiang Province, China. To compare the genotypes between strains of B. canis isolated from the patient and from dogs, a multiple-locus variable-number tandem-repeat analysis (MLVA-16) was performed. In addition, the lipopolysaccharide-synthesis related genes were analyzed with the B. canis reference strain RM6/66. Results: 32 B. canis strains were divided into 26 genotypes using MLVA-16 [Hunter-Gaston Diversity Index (HGDI) = 0.976]. The HGDI indexes for various loci ranged between 0.000 and 0.865. All four Hangzhou isolates were indistinguishable using panel 1 (genotype 3) and panel 2A (genotype 28). However, these strains were distinctly different from other isolates from Beijing, Jiangsu, Liaoning, and Inner Mongolia at Bruce 09. The emergence of a human B. canis infection was limited to an area. Comparative analysis indicated B. canis from canines and humans have no differences in lipopolysaccharide-synthesis locus. Conclusion: The comprehensive approaches have been used to analyze human and canine B. canis isolates, including molecular epidemiological and LPS genetic characteristics. Further detailed analysis of the whole genomic sequencing will contribute to understanding of the pathogenicity of B. canis in humans. PMID- 29326958 TI - Performance and Return to Sport After Thumb Ulnar Collateral Ligament Repair in Major League Baseball Players. AB - Background: Acute ruptures of the ulnar collateral ligament (UCL) of the thumb are common injuries in sports. Surgical repair has yielded excellent results and high return-to-sport (RTS) rates in elite athletes. Purpose: To determine (1) the RTS rate in Major League Baseball (MLB) players following thumb UCL repair, (2) postoperative career length and games played per season, (3) pre- and postoperative performance, (4) postoperative performance compared with matched control players, and (5) whether dominant and nondominant hand injuries respond differently. Study Design: Cohort study; Level of evidence, 3. Methods: MLB players who underwent thumb UCL surgery from August 3, 1987, to September 6, 2016, were identified. Demographic and performance data were collected for each player, and matched controls were identified. RTS in the MLB was defined as playing in at least 1 MLB game after surgery. Comparisons were made by use of paired-samples Student t tests. Results: Twenty-one players were identified, with a mean +/- SD age of 31.7 +/- 3.9 years and mean experience in the MLB of 8.6 +/- 3.3 years at time of surgery. Twenty-one players (100%) achieved RTS in the MLB at a mean 120.0 +/- 75.9 days. No significant decrease was found in games per season or career length for any position following surgery. Infielders had a significantly lower rate of postoperative wins above replacement (WAR) compared with preoperatively (P = .006), but no significant differences in postoperative performance score were found compared with controls after the index date. No significant difference was found for performance between players undergoing surgery on their dominant hand and those who had surgery on their nondominant (glove) hand compared with controls. Conclusion: In this study, 100% of MLB players achieved RTS after thumb UCL repair, with in-season players returning at a mean of 8 weeks. Players who underwent thumb UCL repair played in a similar number of games per season and had similar career lengths in the MLB as controls. Infielders had a significantly lower postoperative WAR compared with preoperatively, but no significant postoperative performance score differences were noted when infielders were compared with post-index date matched controls. No significant performance differences were noted with regard to surgery on dominant and nondominant hands. PMID- 29326957 TI - Characterization of the Phospholipid Platelet-Activating Factor As a Mediator of Inflammation in Chickens. AB - Lipid mediators are known to play important roles in the onset and resolution phases of the inflammatory response in mammals. The phospholipid platelet activating factor (PAF) is a pro-inflammatory lipid mediator which participates in vascular- and innate immunity-associated processes by increasing vascular permeability, by facilitating leukocyte adhesion to the endothelium, and by contributing to phagocyte activation. PAF exerts its function upon binding to its specific receptor, PAF receptor (PAFR), which is abundantly expressed in leukocytes and endothelial cells (ECs). In chickens, lipid mediators and their functions are still poorly characterized, and the role of PAF as an inflammatory mediator has not yet been investigated. In the present study we demonstrate that primary chicken macrophages express PAFR and lysophosphatidylcholine acyltransferase 2 (LPCAT2), the latter being essential to PAF biosynthesis during inflammation. Also, exogenous PAF treatment induces intracellular calcium increase, reactive oxygen species release, and increased phagocytosis by primary chicken macrophages in a PAFR-dependent manner. We also show that PAF contributes to the Escherichia coli lipopolysaccharide (LPS)-induced pro-inflammatory response and boosts the macrophage response to E. coli LPS via phosphatidylinositol 3-kinase/Akt- and calmodulin kinase II-mediated intracellular signaling pathways. Exogenous PAF treatment also increases avian pathogenic E. coli intracellular killing by chicken macrophages, and PAFR and LPCAT2 are upregulated in chicken lungs and liver during experimental pulmonary colibacillosis. Finally, exogenous PAF treatment increases cell permeability and upregulates the expression of genes coding for proteins involved in leukocyte adhesion to the endothelium in primary chicken endothelial cells (chAEC). In addition to these vascular phenomena, PAF boosts the chAEC inflammatory response to bacteria-associated molecular patterns in a PAFR-dependent manner. In conclusion, we identified PAF as an inflammation amplifier in chicken macrophages and ECs, which suggests that PAF could play important roles in the endothelium innate immunity interface in birds during major bacterial infectious diseases such as colibacillosis. PMID- 29326959 TI - Use of Antibiotic Prophylaxis for Tooth Extractions, Dental Implants, and Periodontal Surgical Procedures. AB - Background: Guidelines for antibiotics prior to dental procedures for patients with specific cardiac conditions and prosthetic joints have changed, reducing indications for antibiotic prophylaxis. In addition to guidelines focused on patient comorbidities, systematic reviews specific to dental extractions and implants support preprocedure antibiotics for all patients. However, data on dentist adherence to these recommendations are scarce. Methods: This was a cross sectional study of veterans undergoing tooth extractions, dental implants, and periodontal procedures. Patients receiving antibiotics for oral or nonoral infections were excluded. Data were collected through manual review of the health record. Results: Of 183 veterans (mean age, 62 years; 94.5% male) undergoing the included procedures, 82.5% received antibiotic prophylaxis (mean duration, 7.1 +/ 1.6 days). Amoxicillin (71.3% of antibiotics) and clindamycin (23.8%) were prescribed most frequently; 44.7% of patients prescribed clindamycin were not labeled as penicillin allergic. Of those who received prophylaxis, 92.1% received postprocedure antibiotics only, 2.6% received preprocedural antibiotics only, and 5.3% received pre- and postprocedure antibiotics. When prophylaxis was indicated, 87.3% of patients received an antibiotic. However, 84.9% received postprocedure antibiotics when preprocedure administration was indicated. While the majority of antibiotics were indicated, only 8.2% of patients received antibiotics appropriately. The primary reason was secondary to prolonged duration. Three months postprocedure, there were no occurrences of Clostridium difficile infection, infective endocarditis, prosthetic joint infections, or postprocedure oral infections. Conclusion: The majority of patients undergoing a dental procedure received antibiotic prophylaxis as indicated. Although patients for whom antibiotic prophylaxis was indicated should have received a single preprocedure dose, most antibiotics were prescribed postprocedure. Dental stewardship efforts should ensure appropriate antibiotic timing, indication, and duration. PMID- 29326960 TI - Risk Factors for Clinician-Diagnosed Lyme Arthritis, Facial Palsy, Carditis, and Meningitis in Patients From High-Incidence States. AB - Background: Clinical features of Lyme disease (LD) range from localized skin lesions to serious disseminated disease. Information on risk factors for Lyme arthritis, facial palsy, carditis, and meningitis is limited but could facilitate disease recognition and elucidate pathophysiology. Methods: Patients from high incidence states treated for LD during 2005-2014 were identified in a nationwide insurance claims database using the International Classification of Diseases, Ninth Revision code for LD (088.81), antibiotic treatment history, and clinically compatible codiagnosis codes for LD manifestations. Results: Among 88022 unique patients diagnosed with LD, 5122 (5.8%) patients with 5333 codiagnoses were identified: 2440 (2.8%) arthritis, 1853 (2.1%) facial palsy, 534 (0.6%) carditis, and 506 (0.6%) meningitis. Patients with disseminated LD had lower median age (35 vs 42 years) and higher male proportion (61% vs 50%) than nondisseminated LD. Greatest differential risks included arthritis in males aged 10-14 years (odds ratio [OR], 3.5; 95% confidence interval [CI], 3.0-4.2), facial palsy (OR, 2.1; 95% CI, 1.6-2.7) and carditis (OR, 2.4; 95% CI, 1.6-3.6) in males aged 20-24 years, and meningitis in females aged 10-14 years (OR, 3.4; 95% CI, 2.1-5.5) compared to the 55-59 year referent age group. Males aged 15-29 years had the highest risk for complete heart block, a potentially fatal condition. Conclusions: The risk and manifestations of disseminated LD vary by age and sex. Provider education regarding at-risk populations and additional investigations into pathophysiology could enhance early case recognition and improve patient management. PMID- 29326961 TI - Trends in suicidality among sexual minority and heterosexual students in a Canadian population-based cohort study. AB - Objectives: Despite evidence from numerous studies that document disparities in suicidality for sexual minorities, few have investigated whether or not these trends have improved over time, which is the objective of the current study. Methods: Using school-based population data over a 15-year period (1998 to 2013), multivariate logistic regressions were used to calculate age-adjusted odds ratios separately by gender. Interactions were included to test widening or narrowing disparities within orientation groups, which makes this one of the first studies to test whether gaps in disparities between heterosexual and sexual minorities have widened or narrowed over time. Results: Results show that sexual minority youth are persistently at a greater risk for suicidal behaviour, a trend that has continued particularly for bisexual youth of both sexes. Results also suggest that the gap in suicidal behaviour is widening among some female sexual orientation groups, yet narrowing for other male sexual orientation groups. Conclusions: These findings have important public health implications, especially since we see decreases in suicidal behaviour for heterosexual adolescents, but not in the same way for many sexual minority youth, despite advances in social acceptance of gay, lesbian, and bisexual issues in North America. PMID- 29326963 TI - Mutant Huntingtin Secretion in Neuro2A Cells and Rat Primary Cortical Neurons. AB - Quantitative analysis of proteins secreted from the cells poses a challenge due to their low abundance and the interfering presence of a large amount of bovine serum albumin (BSA) in the cell culture media. We established assays for detection of mutant huntingtin (mHtt) secreted from Neuro2A cell line stably expressing mHtt and rat primary cortical neurons by Western blotting. Our protocol is based on reducing the amounts of BSA in the media while maintaining cell viability and secretory potential, and concentrating the media prior to analysis by means of ultrafiltration. PMID- 29326965 TI - Average crop yield (2001-2017) in Ethiopia: Trends at national, regional and zonal levels. AB - This article presents average agricultural yield data per hectare for key cereal, legume and root crops from 2001 until 2017. Data was obtained from the annual Agricultural Sample Surveys of the Central Statistics Agency (CSA) of Ethiopia. We present data at national, regional (SNNPRS) and zonal (Wolaita) levels. The data shows that average yields for all crops, at all levels, show increasing trends during the time period. Data for the main cereal crops is consistent and aligns with literature relatively well, however we raise questions about the root crop data in an effort to encourage greater critical reflection of components of data from the CSA. PMID- 29326964 TI - Transportation and Other Nonfinancial Barriers Among Uninsured Primary Care Patients. AB - Introduction: Nonfinancial barriers are frequent causes of unmet need in health care services. The significance of transportation barriers can weigh more than the issues of access to care. The purpose of this cross-sectional study was to examine transportation and other nonfinancial barriers among low-income uninsured patients of a safety net health-care facility (free clinic). Methods: The survey data were collected from patients aged 18 years and older who spoke English or Spanish at a free clinic, which served uninsured individuals in poverty in the United States. Results: Levels of transportation barriers were associated with levels of other nonfinancial barriers. Higher levels of nonfinancial barriers were associated with elevation in levels of stress and poorer self-rated general health. Higher educational attainment and employment were associated with an increase in other nonfinancial barriers. Conclusion: Focusing only on medical interventions might not be sufficient for the well-being of the underserved populations. Future studies should examine integrative care programs that include medical treatment and social services together and evaluate such programs to improve care for underserved populations. PMID- 29326966 TI - Transcriptome datasets of macrophages infected with different strains of Leptospira spp. AB - The datasets reported herein provide information about microarray experiment of macrophage cell line J774A.1 infected with three different strains of Leptospira spp. Transcriptomic profiles were generated using Affymetrix(r) Mouse Gene 2.1 ST Array Strip. Data was normalized and statically process, p-value < 0.01, FDR < 0.05 and log2 fold change (+/- 2). The microarray raw data are available in Gene Expression Omnibus (GEO) under accession number GSE105141. PMID- 29326967 TI - HR-TEM and FT-Raman dataset of the caffeine interacted Phe-Phe peptide nanotube for possible sensing applications. AB - Sensing ability of caffeine interaction with Phe-Phe annotates (PNTs), is presented (Govindhan et al., 2017; Karthikeyan et al., 2014; Tavagnacco et al., 2013; Kennedy et al., 2011; Wang et al., 2017) [1-5] in this data set. Investigation of synthesized caffeine carrying peptide nanotubes are carried out by FT-Raman spectral analysis and high resolution transmission electron microscopy (HR-TEM). Particle size of the caffeine loaded PNTs is < 40 nm. The FT Raman spectrum signals are enhanced in the region of 400-1700 cm-1. These data are ideal tool for the applications like biosensing and drug delivery research (DDS). PMID- 29326962 TI - Emerging Issues in AAV-Mediated In Vivo Gene Therapy. AB - In recent years, the number of clinical trials in which adeno-associated virus (AAV) vectors have been used for in vivo gene transfer has steadily increased. The excellent safety profile, together with the high efficiency of transduction of a broad range of target tissues, has established AAV vectors as the platform of choice for in vivo gene therapy. Successful application of the AAV technology has also been achieved in the clinic for a variety of conditions, including coagulation disorders, inherited blindness, and neurodegenerative diseases, among others. Clinical translation of novel and effective "therapeutic products" is, however, a long process that involves several cycles of iterations from bench to bedside that are required to address issues encountered during drug development. For the AAV vector gene transfer technology, several hurdles have emerged in both preclinical studies and clinical trials; addressing these issues will allow in the future to expand the scope of AAV gene transfer as a therapeutic modality for a variety of human diseases. In this review, we will give an overview on the biology of AAV vector, discuss the design of AAV-based gene therapy strategies for in vivo applications, and present key achievements and emerging issues in the field. We will use the liver as a model target tissue for gene transfer based on the large amount of data available from preclinical and clinical studies. PMID- 29326968 TI - Data on wastewater treatment plant by using wetland method, Babol, Iran. AB - Date in this paper highlights the applications of constructed horizontal surface flow (HF-CW) wetland with two different local plants (Louis latifoila and Phragmites -australis (Cav.) Trin) at the wastewater treatment plant in Babol city. This system was designed as an advanced treatment unit in field scale after the treatment plant. Parameters such as Total Dissolved Solid (TDS), Total Suspended Solid (TSS), Turbidity, Biological Oxygen Demand (BOD) and Chemical Oxygen Demand (COD), were investigated. The result shows that treatment efficiency increases with the passage of time. The efficiency of Phragmites planted setups in open environment was fairly good for all studied parameters (28.6% of TDS, 94.4% for TSS, 79.8% for turbidity, 93.7% for BOD and 82.6% for COD). The efficiency of the latifoila set up was also good, but lower than that of Phragmites (26.5% of TDS, 76.9% for TSS, 71.5% for turbidity, 79.1 for BOD and 68.8% for COD). In brief, the obtained dates show that using local plants in (HF CW) wetland not only effectively reduces various contaminants from the effluent of the wastewater according to Effluent Guideline regulations (WHO & EPA), but it is also a cost- effective and environmentally friendly method. Also, it was calculated that in full scale operation [time (1 day) and a depth (0.3 m)], 8 ha of wetland was needed. PMID- 29326969 TI - Data set of enzyme fingerprinting of dietary fibre components (arabinoxylan and beta-glucan) in old and modern Italian durum wheat genotypes. AB - The data presented are related to the research article entitled "Comparison of the dietary fibre composition of old and modern durum wheat (Triticum turgidum spp. durum) genotypes" (De Santis et al., 2018) [1]. This article provides details of the structures of the major dietary fibre components, arabinoxylan and beta-glucan, in semolina and wholemeal flour of old and modern Italian durum wheat genotypes grown in two seasons, determined by enzyme digestion followed by high-performance anion-exchange chromatography (enzyme fingerprinting). PMID- 29326970 TI - Revisiting sweat chloride test results based on recent guidelines for diagnosis of cystic fibrosis. AB - Objectives: Recent sweat chloride guidelines published by the Cystic Fibrosis Foundation changed the intermediate sweat chloride concentration range from 40-59 mmol/L to 30-59 mmol/L for age > 6 months. We wanted to know how this new guideline would impact detection of cystic fibrosis among patients who previously had sweat tests done at Texas Children's Hospital. Methods: We revisited sweat chloride test results (n = 3012) in the last 5 years at Texas Children's Hospital based on the new guidelines on diagnosis of cystic fibrosis from the Cystic Fibrosis Foundation. Results: We identified 125 patients that would be reclassified in the intermediate sweat chloride value with the new guidelines that were classified as "unlikely to have CF" in the previous guidelines. 8 (32%) patients with CFTR gene testing were positive for CFTR gene mutation(s). 4 (50%) of these patients were identified to have 2 CFTR mutations. One had variant combination that was reported to cause CF but all were diagnosed with CFTR related metabolic syndrome. Conclusion: Our findings concur with the new CF diagnosis guidelines that changing the intermediate cut-off to 30-59 mmol/L sweat chloride concentration in combination with CFTR genetic analysis enhances the probability of identifying individuals that have risk of developing CF or have CF and enables for earlier therapeutic intervention. PMID- 29326971 TI - Cervical clear cell adenocarcinoma with an exceptionally low proliferation index: Report of a case. AB - *A histologically low-grade cervical clear cell lesion was observed.*Proliferating cells were seen only at the periphery of this lesion.*Due to its low proliferation index, this may represent a precursor of clear cell carcinoma.*Further definition of such lesions may allow for more minimal management. PMID- 29326972 TI - Aggressive neuroendocrine tumor of the ovary with multiple metastases treated with everolimus: A case report. AB - *Neuroendocrine tumors (NETs) frequently occur in the lungs or the gastrointestinal tract; they are uncommon in the ovary.*The mammalian target of rapamycin (mTOR) pathway has been reported as a treatment for advanced NETs.*We describe a patient with an aggressive primary ovarian NET, successfully treated with everolimus (an mTOR inhibitor). PMID- 29326973 TI - A rare case of endometrial cancer metastatic to the uveal choroid. AB - *Choroid metastases are extremely rare in endometrial cancer.*Choroid metastases can present as many different eye complaints.*Comprehensive eye exams are important in patients with visual complaints. PMID- 29326974 TI - The largest deep-ocean silicic volcanic eruption of the past century. AB - The 2012 submarine eruption of Havre volcano in the Kermadec arc, New Zealand, is the largest deep-ocean eruption in history and one of very few recorded submarine eruptions involving rhyolite magma. It was recognized from a gigantic 400-km2 pumice raft seen in satellite imagery, but the complexity of this event was concealed beneath the sea surface. Mapping, observations, and sampling by submersibles have provided an exceptionally high fidelity record of the seafloor products, which included lava sourced from 14 vents at water depths of 900 to 1220 m, and fragmental deposits including giant pumice clasts up to 9 m in diameter. Most (>75%) of the total erupted volume was partitioned into the pumice raft and transported far from the volcano. The geological record on submarine volcanic edifices in volcanic arcs does not faithfully archive eruption size or magma production. PMID- 29326976 TI - Ultrafast rotation of magnetically levitated macroscopic steel spheres. AB - Our world is increasingly powered by electricity, which is largely converted to or from mechanical energy using electric motors. Several applications have driven the miniaturization of these machines, resulting in high rotational speeds. Although speeds of several hundred thousand revolutions per minute have been used industrially, we report the realization of an electrical motor reaching 40 million rpm to explore the underlying physical boundaries. Millimeter-scale steel spheres, which are levitated and accelerated by magnetic fields inside a vacuum, are used as a rotor. Circumferential speeds exceeding 1000 m/s and centrifugal accelerations of more than 4 * 108 times gravity were reached. The results open up new research possibilities, such as the testing of materials under extreme centrifugal load, and provide insights into the development of future electric drive systems. PMID- 29326975 TI - Identifying the substrate proteins of U-box E3s E4B and CHIP by orthogonal ubiquitin transfer. AB - E3 ubiquitin (UB) ligases E4B and carboxyl terminus of Hsc70-interacting protein (CHIP) use a common U-box motif to transfer UB from E1 and E2 enzymes to their substrate proteins and regulate diverse cellular processes. To profile their ubiquitination targets in the cell, we used phage display to engineer E2-E4B and E2-CHIP pairs that were free of cross-reactivity with the native UB transfer cascades. We then used the engineered E2-E3 pairs to construct "orthogonal UB transfer (OUT)" cascades so that a mutant UB (xUB) could be exclusively used by the engineered E4B or CHIP to label their substrate proteins. Purification of xUB conjugated proteins followed by proteomics analysis enabled the identification of hundreds of potential substrates of E4B and CHIP in human embryonic kidney 293 cells. Kinase MAPK3 (mitogen-activated protein kinase 3), methyltransferase PRMT1 (protein arginine N-methyltransferase 1), and phosphatase PPP3CA (protein phosphatase 3 catalytic subunit alpha) were identified as the shared substrates of the two E3s. Phosphatase PGAM5 (phosphoglycerate mutase 5) and deubiquitinase OTUB1 (ovarian tumor domain containing ubiquitin aldehyde binding protein 1) were confirmed as E4B substrates, and beta-catenin and CDK4 (cyclin-dependent kinase 4) were confirmed as CHIP substrates. On the basis of the CHIP-CDK4 circuit identified by OUT, we revealed that CHIP signals CDK4 degradation in response to endoplasmic reticulum stress. PMID- 29326977 TI - Monitoring reservoir response to earthquakes and fluid extraction, Salton Sea geothermal field, California. AB - Continuous monitoring of in situ reservoir responses to stress transients provides insights into the evolution of geothermal reservoirs. By exploiting the stress dependence of seismic velocity changes, we investigate the temporal evolution of the reservoir stress state of the Salton Sea geothermal field (SSGF), California. We find that the SSGF experienced a number of sudden velocity reductions (~0.035 to 0.25%) that are most likely caused by openings of fractures due to dynamic stress transients (as small as 0.08 MPa and up to 0.45 MPa) from local and regional earthquakes. Depths of velocity changes are estimated to be about 0.5 to 1.5 km, similar to the depths of the injection and production wells. We derive an empirical in situ stress sensitivity of seismic velocity changes by relating velocity changes to dynamic stresses. We also observe systematic velocity reductions (0.04 to 0.05%) during earthquake swarms in mid-November 2009 and late-December 2010. On the basis of volumetric static and dynamic stress changes, the expected velocity reductions from the largest earthquakes with magnitude ranging from 3 to 4 in these swarms are less than 0.02%, which suggests that these earthquakes are likely not responsible for the velocity changes observed during the swarms. Instead, we argue that velocity reductions may have been induced by poroelastic opening of fractures due to aseismic deformation. We also observe a long-term velocity increase (~0.04%/year) that is most likely due to poroelastic contraction caused by the geothermal production. Our observations demonstrate that seismic interferometry provides insights into in situ reservoir response to stress changes. PMID- 29326978 TI - Seismic signature of active intrusions in mountain chains. AB - Intrusions are a ubiquitous component of mountain chains and testify to the emplacement of magma at depth. Understanding the emplacement and growth mechanisms of intrusions, such as diapiric or dike-like ascent, is critical to constrain the evolution and structure of the crust. Petrological and geological data allow us to reconstruct magma pathways and long-term magma differentiation and assembly processes. However, our ability to detect and reconstruct the short term dynamics related to active intrusive episodes in mountain chains is embryonic, lacking recognized geophysical signals. We analyze an anomalously deep seismic sequence (maximum magnitude 5) characterized by low-frequency bursts of earthquakes that occurred in 2013 in the Apennine chain in Italy. We provide seismic evidences of fluid involvement in the earthquake nucleation process and identify a thermal anomaly in aquifers where CO2 of magmatic origin dissolves. We show that the intrusion of dike-like bodies in mountain chains may trigger earthquakes with magnitudes that may be relevant to seismic hazard assessment. These findings provide a new perspective on the emplacement mechanisms of intrusive bodies and the interpretation of the seismicity in mountain chains. PMID- 29326980 TI - Increased fluxes of shelf-derived materials to the central Arctic Ocean. AB - Rising temperatures in the Arctic Ocean region are responsible for changes such as reduced ice cover, permafrost thawing, and increased river discharge, which, together, alter nutrient and carbon cycles over the vast Arctic continental shelf. We show that the concentration of radium-228, sourced to seawater through sediment-water exchange processes, has increased substantially in surface waters of the central Arctic Ocean over the past decade. A mass balance model for 228Ra suggests that this increase is due to an intensification of shelf-derived material inputs to the central basin, a source that would also carry elevated concentrations of dissolved organic carbon and nutrients. Therefore, we suggest that significant changes in the nutrient, carbon, and trace metal balances of the Arctic Ocean are underway, with the potential to affect biological productivity and species assemblages in Arctic surface waters. PMID- 29326979 TI - Nanometer-precision linear sorting with synchronized optofluidic dual barriers. AB - The past two decades have witnessed the revolutionary development of optical trapping of nanoparticles, most of which deal with trapping stiffness larger than 10-8 N/m. In this conventional regime, however, it remains a formidable challenge to sort out sub-50-nm nanoparticles with single-nanometer precision, isolating us from a rich flatland with advanced applications of micromanipulation. With an insightfully established roadmap of damping, the synchronization between optical force and flow drag force can be coordinated to attempt the loosely overdamped realm (stiffness, 10-10 to 10-8 N/m), which has been challenging. This paper intuitively demonstrates the remarkable functionality to sort out single gold nanoparticles with radii ranging from 30 to 50 nm, as well as 100- and 150-nm polystyrene nanoparticles, with single nanometer precision. The quasi-Bessel optical profile and the loosely overdamped potential wells in the microchannel enable those aforementioned nanoparticles to be separated, positioned, and microscopically oscillated. This work reveals an unprecedentedly meaningful damping scenario that enriches our fundamental understanding of particle kinetics in intriguing optical systems, and offers new opportunities for tumor targeting, intracellular imaging, and sorting small particles such as viruses and DNA. PMID- 29326981 TI - Adaptation required to preserve future high-end river flood risk at present levels. AB - Earth's surface temperature will continue to rise for another 20 to 30 years even with the strongest carbon emission reduction currently considered. The associated changes in rainfall patterns can result in an increased flood risk worldwide. We compute the required increase in flood protection to keep high-end fluvial flood risk at present levels. The analysis is carried out worldwide for subnational administrative units. Most of the United States, Central Europe, and Northeast and West Africa, as well as large parts of India and Indonesia, require the strongest adaptation effort. More than half of the United States needs to at least double their protection within the next two decades. Thus, the need for adaptation to increased river flood is a global problem affecting industrialized regions as much as developing countries. PMID- 29326982 TI - Discovery of slow magnetic fluctuations and critical slowing down in the pseudogap phase of YBa2Cu3O y. AB - The origin of the pseudogap region below a temperature T* is at the heart of the mysteries of cuprate high-temperature superconductors. Unusual properties of the pseudogap phase, such as broken time-reversal and inversion symmetry are observed in several symmetry-sensitive experiments: polarized neutron diffraction, optical birefringence, dichroic angle-resolved photoemission spectroscopy, second harmonic generation, and polar Kerr effect. These properties suggest that the pseudogap region is a genuine thermodynamic phase and are predicted by theories invoking ordered loop currents or other forms of intra-unit-cell (IUC) magnetic order. However, muon spin rotation (MUSR) and nuclear magnetic resonance (NMR) experiments do not see the static local fields expected for magnetic order, leaving room for skepticism. The magnetic resonance probes have much longer time scales, however, over which local fields could be averaged by fluctuations. The observable effect of the fluctuations in magnetic resonance is then dynamic relaxation. We have measured dynamic muon spin relaxation rates in single crystals of YBa2Cu3O y (6.72 < y < 6.95) and have discovered "slow" fluctuating magnetic fields with magnitudes and fluctuation rates of the expected orders of magnitude that set in consistently at temperatures Tmag ~ T*. The absence of any static field (to which MUSR would be linearly sensitive) is consistent with the finite correlation length from neutron diffraction. Equally important, these fluctuations exhibit the critical slowing down at Tmag expected near a time reversal symmetry breaking transition. Our results explain the absence of static magnetism and provide support for the existence of IUC magnetic order in the pseudogap phase. PMID- 29326983 TI - Detecting reciprocity at a global scale. AB - Reciprocity stabilizes cooperation from the level of microbes all the way up to humans interacting in small groups, but does reciprocity also underlie stable cooperation between larger human agglomerations, such as nation states? Famously, evolutionary models show that reciprocity could emerge as a widespread strategy for achieving international cooperation. However, existing studies have only detected reciprocity-driven cooperation in a small number of country pairs. We apply a new method for detecting mutual influence in dynamical systems to a new large-scale data set that records state interactions with high temporal resolution. Doing so, we detect reciprocity between many country pairs in the international system and find that these reciprocating country pairs exhibit qualitatively different cooperative dynamics when compared to nonreciprocating pairs. Consistent with evolutionary theories of cooperation, reciprocating country pairs exhibit higher levels of stable cooperation and are more likely to punish instances of noncooperation. However, countries in reciprocity-based relationships are also quicker to forgive single acts of noncooperation by eventually returning to previous levels of mutual cooperation. By contrast, nonreciprocating pairs are more likely to exploit each other's cooperation via higher rates of defection. Together, these findings provide the strongest evidence to date that reciprocity is a widespread mechanism for achieving international cooperation. PMID- 29326984 TI - Using parahydrogen to hyperpolarize amines, amides, carboxylic acids, alcohols, phosphates, and carbonates. AB - Hyperpolarization turns weak nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) responses into strong signals, so normally impractical measurements are possible. We use parahydrogen to rapidly hyperpolarize appropriate 1H, 13C, 15N, and 31P responses of analytes (such as NH3) and important amines (such as phenylethylamine), amides (such as acetamide, urea, and methacrylamide), alcohols spanning methanol through octanol and glucose, the sodium salts of carboxylic acids (such as acetic acid and pyruvic acid), sodium phosphate, disodium adenosine 5'-triphosphate, and sodium hydrogen carbonate. The associated signal gains are used to demonstrate that it is possible to collect informative single-shot NMR spectra of these analytes in seconds at the micromole level in a 9.4-T observation field. To achieve these wide-ranging signal gains, we first use the signal amplification by reversible exchange (SABRE) process to hyperpolarize an amine or ammonia and then use their exchangeable NH protons to relay polarization into the analyte without changing its identity. We found that the 1H signal gains reach as high as 650-fold per proton, whereas for 13C, the corresponding signal gains achieved in a 1H-13C refocused insensitive nuclei enhanced by polarization transfer (INEPT) experiment exceed 570-fold and those in a direct-detected 13C measurement exceed 400-fold. Thirty-one examples are described to demonstrate the applicability of this technique. PMID- 29326985 TI - Use of an Autonomous Surface Vehicle reveals small-scale diel vertical migrations of zooplankton and susceptibility to light pollution under low solar irradiance. AB - Light is a major cue for nearly all life on Earth. However, most of our knowledge concerning the importance of light is based on organisms' response to light during daytime, including the dusk and dawn phase. When it is dark, light is most often considered as pollution, with increasing appreciation of its negative ecological effects. Using an Autonomous Surface Vehicle fitted with a hyperspectral irradiance sensor and an acoustic profiler, we detected and quantified the behavior of zooplankton in an unpolluted light environment in the high Arctic polar night and compared the results with that from a light-polluted environment close to our research vessels. First, in environments free of light pollution, the zooplankton community is intimately connected to the ambient light regime and performs synchronized diel vertical migrations in the upper 30 m despite the sun never rising above the horizon. Second, the vast majority of the pelagic community exhibits a strong light-escape response in the presence of artificial light, observed down to 100 m. We conclude that artificial light from traditional sampling platforms affects the zooplankton community to a degree where it is impossible to examine its abundance and natural rhythms within the upper 100 m. This study underscores the need to adjust sampling platforms, particularly in dim-light conditions, to capture relevant physical and biological data for ecological studies. It also highlights a previously unchartered susceptibility to light pollution in a region destined to see significant changes in light climate due to a reduced ice cover and an increased anthropogenic activity. PMID- 29326988 TI - Editorial. AB - Dear Colleagues, It is with pleasure that I hereby introduce the ninth issue of UIO. This issue covers a wide range of interesting topics. Some of the topics are also focus areas for the European Federation of Societies for Ultrasound in Medicine and Biology (EFSUMB), namely student education in ultrasound and elastography. Guidelines are available under www.efsumb.org. PMID- 29326986 TI - Measles virus: Background and oncolytic virotherapy. AB - Measles is a highly transmissible disease caused by measles virus and remains a major cause of child mortality in developing countries. Measles virus nucleoprotein (N) encapsidates the RNA genome of the virus for providing protection from host cell endonucleases and for specific recognition of viral RNA as template for transcription and replication. This protein is over-expressed at the time of viral replication. The C-terminal of N protein is intrinsically disordered, which enables this protein to interact with several host cell proteins. It was previously proved in our laboratory that N expressing human cancerous cells undergo programmed cell death because of reactive oxygen species (ROS) generation as well as Caspase 3 activation. The phosphoprotein (P) along with N protein enclosed viral genomic RNA forming a ribonucleoprotein complex (RNP). It also establishes interaction with the large protein (L) i.e. viral RNA dependent RNA polymerase to ensure viral replication within host cells. The host cell receptors of this virus are CD46, SLAM/CD150 and PVRL4. Measles virus is latently oncotropic in nature and possesses oncolytic property by syncytia formation. We try to highlight the application of this property in developing a virotherapeutic vehicle. PMID- 29326987 TI - Assessment of nutrient quality, heavy metals and phytotoxic properties of chicken manure on selected commercial vegetable crops. AB - Due to rapid expansion in the poultry industry, production of poultry manure has also consequently increased, resulting in unplanned disposal of this manure to the soil in some cases, with possible negative environmental consequences. In this study, 10 separate poultry manure samples were collected from different sites located in the central Eastern Cape, South Africa and characterized for chemical and phytotoxic properties. The poultry manures had an average neutral pH (range 6.94 - 7.97) whilst the electrical conductivity was highly variable from 2.45 dS/m to 12.3 dS/m between the 10 sites. The high conductivity values recorded in some of the manures indicate that caution may need to be practiced when directly applying these manure to the soil, to avoid buildup of soluble salts. All samples showed a very high concentration of total P (1963.1 mg/kg - 2644.1 mg/kg) with the plant available fraction ranging from 21.3% - 37.7% of the total P. All the heavy metals measured (Cr, Cu, Ni, Pb and Zn) were below the maximum permissible limits set by the U.S. Environmental Protection Agency. However, some of the poultry manure showed some level of phytotoxicity based on the plant bioassay, with some samples, recording a germination index less than 50% for the different crops evaluated. However, this bioassay may not be conclusive and there is need to evaluate this phytotoxicity in real world field applications as there is paucity of information on this aspect regarding poultry manure. Such filed studies can be used to evaluate alternative strategies such as planting and harvest intervals between application of these manures and planting or harvesting. It is also suggested that further biodegradation through composting or vermicomposting may be required to improve nutrient content and reduce the presence of phytotoxic compounds in some of the poultry manures before use as soil amendments. PMID- 29326989 TI - Progressive calibration and averaging for tandem mass spectrometry statistical confidence estimation: Why settle for a single decoy? AB - Estimating the false discovery rate (FDR) among a list of tandem mass spectrum identifications is mostly done through target-decoy competition (TDC). Here we offer two new methods that can use an arbitrarily small number of additional randomly drawn decoy databases to improve TDC. Specifically, "Partial Calibration" utilizes a new meta-scoring scheme that allows us to gradually benefit from the increase in the number of identifications calibration yields and "Averaged TDC" (a-TDC) reduces the liberal bias of TDC for small FDR values and its variability throughout. Combining a-TDC with "Progressive Calibration" (PC), which attempts to find the "right" number of decoys required for calibration we see substantial impact in real datasets: when analyzing the Plasmodium falciparum data it typically yields almost the entire 17% increase in discoveries that "full calibration" yields (at FDR level 0.05) using 60 times fewer decoys. Our methods are further validated using a novel realistic simulation scheme and importantly, they apply more generally to the problem of controlling the FDR among discoveries from searching an incomplete database. PMID- 29326990 TI - A fluorescent microbead-based microfluidic immunoassay chip for immune cell cytokine secretion quantification. AB - Quantitative and dynamic analyses of immune cell secretory cytokines are essential for precise determination and characterization of the "immune phenotype" of patients for clinical diagnosis and treatment of immune-related diseases. Although multiple methods including the enzyme-linked immunosorbent assay (ELISA) have been applied for cytokine detection, such measurements remain very challenging in real-time, high-throughput, and high-sensitivity immune cell analysis. In this paper, we report a highly integrated microfluidic device that allows for on-chip isolation, culture, and stimulation, as well as sensitive and dynamic cytokine profiling of immune cells. Such a microfluidic sensing chip is integrated with cytometric fluorescent microbeads for real-time and multiplexed monitoring of immune cell cytokine secretion dynamics, consuming a relatively small extracted sample volume (160 nl) without interrupting the immune cell culture. Furthermore, it is integrated with a Taylor dispersion-based mixing unit in each detection chamber that shortens the immunoassay period down to less than 30 minutes. We demonstrate the profiling of multiple pro-inflammatory cytokine secretions (e.g. interleukin-6, interleukin-8, and tumor necrosis factors) of human peripheral blood mononuclear cells (PBMCs) with a sensitivity of 20 pg ml-1 and a sample volume of 160 nl per detection. Further applications of this automated, rapid, and high-throughput microfluidic immunophenotyping platform can help unleash the mechanisms of systemic immune responses, and enable efficient assessments of the pathologic immune status for clinical diagnosis and immune therapy. PMID- 29326992 TI - A Cu(ii) metal-organic framework with significant H2 and CO2 storage capacity and heterogeneous catalysis for the aerobic oxidative amination of C(sp3)-H bonds and Biginelli reactions. AB - A Cu(ii) metal-organic framework, {[Cu2(L)(H2O)2].(5DMF)(4H2O)}n (1), has been synthesized using an angular tetracarboxylic acid ligand (H4L) incorporating both trifluoromethyl (-CF3) and amine (-NH2) groups. Notably, the framework possesses high water and thermal stability. At atmospheric pressure, the activated framework 1' exhibits substantially high amounts of CO2 (35.5 and 20.8 wt% at 273 and 298 K respectively) and H2 (1.72 wt% at 77 K) adsorption. Also, 1' exhibits excellent catalytic activity for the condensation-cyclization reaction between 2 benzoyl pyridine and different benzylamines via oxidative amination of the C(sp3) H bond to form 1,3-diarylated imidazo[1,5-a]pyridines under mild aerobic conditions. In addition to this, 1' shows excellent heterogeneous catalytic activity in Biginelli reactions. The solid catalyst could be recycled several times without significant loss in the catalytic activities. PMID- 29326991 TI - A facile one-pot synthesis of acrylated hyaluronic acid. AB - The synthesis of acrylated hyaluronic acid (HA-A) normally requires 2 to 3 steps of modification, needs laborious purification and also increases the risks of HA degradation. Here, we report that the conjugation of acrylate groups to hyaluronic acid can be successfully achieved via a new facile one-pot approach. Two types of new HA-A hydrogels (via chemical or UV crosslinking) were developed and applied for 3D cell encapsulation. PMID- 29326993 TI - Turning double hydrophilic into amphiphilic: IR825-conjugated polymeric nanomicelles for near-infrared fluorescence imaging-guided photothermal cancer therapy. AB - Developing biocompatible and photodegradable photothermal agents (PTAs) holds great promise for potential clinical applications in photothermal cancer therapy. Herein, a new PTA was innovatively constructed by conjugating the hydrophobic near-infrared (NIR) heptamethine cyanine molecule IR825-NH2 with a double hydrophilic block copolymer methoxypoly(ethylene glycol)5k-block-poly(l-aspartic acid sodium salt)10 (abbreviated as PEG-PLD) via amine-carboxyl reaction. The as designed PEG-PLD(IR825) was amphiphilic and could self-assemble into polymeric nanomicelles in aqueous solutions. Benefiting from the chemical conjugation strategy, PEG-PLD(IR825) nanomicelles realized a considerably high drug loading rate (~21.0%) and substantially avoided the premature release of IR825 during systemic circulation. Confocal imaging revealed that the nanomicelles mainly located at mitochondria and endoplasmic reticulum after cellular internalization. In vitro photothermal therapy demonstrated the excellent cancer killing efficiency of PEG-PLD(IR825) nanomicelles due to their high light-to-heat conversion efficiency upon NIR laser irradiation. In addition, PEG-PLD(IR825) nanomicelles showed polarity-sensitive fluorescence at ~610 nm (under 552 nm excitation) and 830 nm (under 780 nm excitation), which was especially useful for both in vitro visible fluorescence imaging and in vivo near-infrared fluorescence imaging-guided photothermal therapy (PTT). At the in vivo level, PEG-PLD(IR825) nanomicelles exhibited an excellent tumor-homing ability and a long retention time in tumor tissues as evidenced by the in vivo fluorescence imaging results. The desirable properties of PEG-PLD(IR825) nanomicelles ensured their effective tumor ablation during PTT treatment. More importantly, the PEG-PLD(IR825) nanomicelles underwent degradation after laser irradiation, which ensured their post-treatment biosafety. Therefore, the nanomicelles are promising to serve as an efficient and safe PTA for imaging-guided photothermal cancer therapy. PMID- 29326994 TI - Single coating of zinc ferrite renders magnetic nanomotors therapeutic and stable against agglomeration. AB - Magnetic nanomotors with integrated theranostic capabilities can revolutionize biomedicine of the future. Typically, these nanomotors contain ferromagnetic materials, such that small magnetic fields can be used to maneuver and localize them in fluidic or gel-like environments. Motors with large permanent magnetic moments tend to agglomerate, which limits the scalability of this otherwise promising technology. Here, we demonstrate the application of a microwave synthesized ferrite layer to reduce the agglomeration of helical ferromagnetic nanomotors by an order of magnitude, which allows them to be stored in a colloidal suspension for longer than six months and subsequently be manoeuvred with undiminished performance. The ferrite layer also rendered the nanomotors suitable as magnetic hyperthermia agents, as demonstrated by their cytotoxic effects on cancer cells. The two functionalities were inter-related since higher hyperthermia efficiency required a denser suspension, both of which were achieved in a single microwave-synthesized ferrite coating. PMID- 29326995 TI - Alkene functionalization for the stereospecific synthesis of substituted aziridines by visible-light photoredox catalysis. AB - A novel strategy involving visible-light-induced functionalization of alkenes for the synthesis of substituted aziridines was developed. The readily prepared N protected 1-aminopyridinium salts were used for the generation of N-centered radicals. This approach allowed the synthesis of aziridines bearing various functional groups with excellent diastereoselectivity under mild conditions. Moreover, this protocol was successfully applied to prepare structurally diverse nitrogen-containing frameworks. PMID- 29326996 TI - Organocatalytic [3 + 2] cycloaddition of oxindole-based azomethine ylides with 3 nitrochromenes: a facile approach to enantioenriched polycyclic spirooxindole chromane adducts. AB - An organocatalytic asymmetric [3 + 2] cycloaddition of oxindole-based azomethine ylides with 3-nitro-2H-chromenes has been developed. This reaction provides a facile approach to densely functionalized polycyclic spirooxindole-chromane adducts featuring four contiguous stereogenic centers, including two tetrasubstituted carbon centers. The products were obtained in high yields with good to excellent stereoselectivities (up to 99% yields, 96% ee and >20 : 1 dr). In addition, the spiro[pyrrolidine-2,3'-oxindole]-chromane adducts could be readily derivatized via simple oxidation and reduction treatment. A dual activation working model to illuminate the stereochemical course of the [3 + 2] cycloaddition event is proposed. PMID- 29326997 TI - Evidence of lying molecules in the structure of the most condensed phase of semi fluorinated alkane monolayers. AB - Semifluorinated alkanes are known to form peculiar nano-structured monolayers on the surface of water. A comprehensive analysis of in situ Grazing Incidence Small Angle X-ray Scattering (GISAXS) proves that the structure of their condensed phase consists of domains of upright molecules surrounded by lying down molecules. Such a model explains the non-coalescence of the domains and is in agreement with the high resolution AFM images of monolayers at the surfaces of solid substrates. The interaction of the lying molecule dipoles with the dipole of the water surface is proposed to explain the observed structuration. PMID- 29326998 TI - In situ development of amorphous Mn-Co-P shell on MnCo2O4 nanowire array for superior oxygen evolution electrocatalysis in alkaline media. AB - Exploitation of efficient and earth-abundant electrocatalysts for the oxygen evolution reaction (OER) is of great importance. Herein, we report that the formation of an amorphous Mn-Co-P shell on MnCo2O4 can boost its OER activity in alkaline media. The core-shell Mn-Co-P@MnCo2O4 nanowire array on Ti mesh (Mn-Co P@MnCo2O4/Ti) shows excellent electrochemical catalytic activity and requires an overpotential of 269 mV to drive 10 mA cm-2 in 1.0 M KOH, which is 93 mV less than that for the MnCo2O4 nanoarray. Notably, this catalyst also shows strong long-term electrochemical durability with its activity being maintained for at least 100 h and achieves a high turnover frequency of 1.06 s-1 at an overpotential of 450 mV. PMID- 29326999 TI - A semi-rigid isoindoline-derived nitroxide spin label for RNA. AB - A new isoindoline-derived benzimidazole nitroxide spin label, ImUm, was synthesized and incorporated into RNA oligoribonucleotides. ImUm is the first example of a conformationally unambiguous spin label for RNA, in which the nitroxide N-O bond lies on the same axis as the single bond used to attach the rigid isoindoline-based spin label to a uridine base. This results in minimal displacement of the nitroxide upon rotation of this single bond, which is a useful property for a label to be used for distance measurements. Continuous-wave (CW) EPR measurements of RNA duplexes containing ImUm indicate a restricted rotation around this single bond, presumably due to an intramolecular hydrogen bond between the benzimidazole N-H and O4 of the uracil. Orientation-selective pulsed electron-electron double resonance (PELDOR, also called double electron electron resonance, or DEER) distance measurements between two spin labels in two RNA duplexes showed in one case a strong orientation dependence, further confirming the restricted motion of the spin labels in RNA duplexes. PMID- 29327000 TI - Atomic charges for conformationally rich molecules obtained through a modified principal component regression. AB - A modification of the principal component regression model is proposed for obtaining a fixed set of atomic charges (referred to as dipole-derived charges) optimized for reproducing the dipole moment of a conformationally rich molecule, i.e., a molecule with multiple local minima on the potential energy surface. The method does not require any adjustable parameters and requires the geometries of conformers, their dipole moments and atomic polar tensor (APT) charges as the only input data. The fixed atomic charges generated by the method not only reproduce the molecular dipole moment in all the conformers accurately, but are also numerically close to the APT charges, thereby ensuring accurate reproduction of the dipole moment variations caused by small geometrical distortions (e.g., by vibrations) of the conformers. The proposed method has been applied to canonical 2'-deoxyribonucleotides, the model DNA monomers, and the dipole-derived charges have been shown to outperform both the averaged APT and RESP charges in reproducing the dipole moments of large sets of conformers, thus demonstrating a potential usefulness of the dipole-derived charges as a 'reference point' for modeling polarization effects in conformationally rich molecules. PMID- 29327001 TI - Cumulative energy analysis of thermally-induced surface wrinkling of heterogeneously multilayered thin films. AB - Wrinkling is a well-known example of instability-driven surface deformation that occurs when the accumulated compressive stress exceeds the critical value in multilayered systems. A number of studies have investigated the instability conditions and the corresponding mechanisms of wrinkling deformation. Force balance analysis of bilayer systems, in which the thickness of the capping layer is importantly considered, has offered a useful approach for the quantitative understanding of wrinkling. However, it is inappropriate for multilayer wrinkling (layer number > 3) consisting of heterogeneous materials (e.g. polymer/metal or inorganic), in which the thickness variation in the substrate is also crucial. Therefore, to accommodate the additive characteristics of multilayered systems, we thermally treated tri- or quad-layer samples of polymer/metal multilayers to generate surface wrinkles and used a cumulative energy balance analysis to consider the individual contribution of each constituent layer. Unlike the composite layer model, wherein the thickness effect of the capping layer is highly overestimated for heterogenously stacked multilayers, our approach precisely reflects the bending energy contribution of the given multilayer system, with results that match well with experimental values. Furthermore, we demonstrate the feasibility of this approach as a metrological tool for simple and straightforward estimation of the thermomechanical properties of polymers, whereby a delicate change in the Young's modulus of a thin polymeric layer near its glass transition temperature can be successfully monitored. PMID- 29327002 TI - Charge separation properties of Ta3N5 photoanodes synthesized via a simple metal organic-precursor decomposition process. AB - Here, we successfully synthesized a Ta3N5 thin film using a simple metal-organic precursor decomposition process followed by its conversion to nitride and studied its photoelectrochemical (PEC) properties to understand charge separation on the surface. Newly synthesized Ta3N5 photoanodes showed a significant difference in the PEC activity in relation to the annealing temperature under ammonia flow, although similar light absorption properties or electronic states were obtained. Charge separation related PEC properties were analyzed using intensity modulated photocurrent density spectroscopy (IMPS) and photocurrent measurements in the absence/presence of scavengers. The charge transfer and recombination rate constants which are related to the photogenerated charge-separation dynamics on the Ta3N5 surface were found to be more sensitively influenced by the ammonia annealing temperatures, and low temperature (700 degrees C) treated Ta3N5 showed a fast recombination rate constant (kr). In addition, high-efficiency charge injection into the electrolyte on the surface was critically associated with the greatly enhanced photocurrent density of Ta3N5 synthesized at a higher temperature (900 degrees C) of ammonia annealing. PMID- 29327003 TI - Carbon dots as absorbance promoter probes for detection of Cu(ii) ions in aqueous solution: central composite design approach. AB - In this work, the use of carbon dots (CDs) as a complexing agent and sensitizer in a polymeric matrix for determination of copper(ii) by UV-vis spectroscopy is reported for the first time. A new and highly selective Schiff base, namely, (N',N'''E,N',N'''E)-N',N'''-((((2-hydroxypropane-1,3-diyl)bis(oxy))bis(2,1 phenylene))bis(methan-ylylidene))di(isonicotinohydrazide) (NHBMDI), was also incorporated in the polymeric matrix. For the first time, the membrane composition of the proposed optical sensor including NHBMDI as the ionophore, tetraphenylborate (NaTPB) as the anionic additive, dibutyl phthalate (DBP) as the plasticizer and polyvinyl chloride (PVC) as the immobilizer was optimized through central composite design combined with the desirability function approach (DFA) because this method saves material and time consumption and is therefore cost effective. The synthesized CDs were characterized by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The fluorescence quantum yield of the synthesized CDs was found to be 6.4% by using quinine sulfate as the reference. The characterization of the prepared membrane sensor was investigated by field emission scanning electron microscope (FE-SEM) and atomic force microscopy (AFM).The response of the optode was based on the strong absorbance of NHBMDI and CDs upon exposure to Cu(ii) ions with the maximum wavelength at 371 nm. The proposed sensor exhibited a linear response in the concentration range of 1.2 * 10-6-4.56 * 10-5 mol L-1 with a detection limit of 7.1 * 10-7 mol L-1, which is lower than U.S. Environmental Protection Agency's defined limit (20 MUM). Furthermore, the proposed optode displayed good selectivity toward Cu(ii) ions in comparison with common coexisting cations with satisfactory repeatability and reproducibility. The sensor was applied successfully for determination of copper(ii) ions in water samples. PMID- 29327004 TI - Photoinduced ICT vs. excited rotamer intercoversion in two quadrupolar polyaromatic N-methylpyridinium cations. AB - The excited state dynamics of two quadrupolar polyaromatic N-methylpyridinium cations have been fully investigated in order to acquire detailed information on their photo-induced behavior. The two molecules are symmetric push-pull compounds having a D-pi-A+-pi-D motif, with the same electron-acceptor central unit (A = N methylpyridinium) and two distinctive electron-donor polyaromatic side groups (D), namely naphthyl and pyrenyl substituents. Both molecules undergo charge transfer during the absorption, as revealed by a significant solvatochromism exhibited with solvent polarity, but the fate of their excited state was found to be markedly different. The careful analysis of the data gathered from femtosecond resolved fluorescence up-conversion and transient absorption experiments, supported by DFT quantum mechanical calculations and temperature-dependent stationary measurements, shows the leading role of intramolecular charge transfer, assisted by symmetry breaking, in the pyrenyl derivative and that of rotamer interconversion in the naphthtyl one. Both excited state processes are controlled by the viscosity rather than polarity of the solvent, and they occur during inertial solvation in low-viscous media and lengthening up to tens of picoseconds in highly viscous solvents. PMID- 29327005 TI - VIVO complexes with antibacterial quinolone ligands and their interaction with serum proteins. AB - Quinolone derivatives are among the most commonly prescribed antibacterials in the world and could also attract interest as organic ligands in the design of metal complexes with potential pharmacological activity. In this study, five compounds, belonging to the first (nalidixic acid or Hnal), second (ciprofloxacin or Hcip, and norfloxacin or Hnor) and third generation (levofloxacin or Hlev, and sparfloxacin or Hspar) of quinolones, were used as ligands to bind the VIVO2+ ion. In aqueous solution, mono- and bis-chelated species were formed as a function of pH, with cis-[VOHxL2(H2O)]x+ and [VOHxL2]x+, x = 0-2, being the major complexes at pH 7.4. DFT calculations indicate that the most stable isomers are the octahedral OC-6-32 and the square pyramidal SPY-5-12, in equilibrium with each other. To the best of our knowledge, this is the first case that an equilibrium between a penta-coordinated square pyramidal complex and a hexa coordinated octahedral complex is observed in solution for ligands forming six membered chelated rings. Nalidixic acid forms the solid compound [VO(nal)2(H2O)], to which a cis-octahedral geometry was assigned. The interaction with 1 methylimidazole (MeIm) causes a shift of the equilibrium SPY-5 + H2O ? OC-6 toward the right after the formation of cis-[VOHxL2(MeIm)]x+, where MeIm replaces an equatorial water ligand. The study of the systems containing [VO(nal)2(H2O)] and the serum proteins - albumin (HSA), apo-transferrin (apo-hTf) and holo transferrin (holo-hTf) - indicates that HSA and holo-hTf form the mixed species {VO(nal)2}y(HSA) and {VO(nal)2}y(holo-hTf), where y = 1-3 denotes the number of VO(nal)2 moieties bound to accessible histidines (His105, His367, His510 for HSA, and His25, His349, His606 for holo-hTf), whereas apo-hTf yields VO(nal)2(apo-hTf) with the coordination of the His289 residue only. Docking calculations suggest that the specific conformation of apo-hTf and the steric hindrance of the cis VO(nal)2 moiety interfere with its interaction with all the surface His residues and the formation of a hydrogen bond network which could stabilize the binding sites. PMID- 29327006 TI - Spectrochemical analyses of growth phase-related bacterial responses to low (environmentally-relevant) concentrations of tetracycline and nanoparticulate silver. AB - Exposure to environmental insults generally occurs at low levels, making it challenging to measure bacterial responses to such interactions. Additionally, microbial behaviour and phenotype varies in differing bacterial types or growth phases, likely giving rise to growth- or species-specific responses to environmental stimuli. The present study applied a spectrochemical tool, infrared (IR) spectral interrogation coupled with multivariate analysis, to investigate the growth- and species-specific responses of two bacterial strains, Gram negative Pseudomonas fluorescens and Gram-positive Mycobacterium vanbaalenii, to low concentrations of tetracycline, nanoparticulate silver (AgNP) or mixtures thereof. Results indicate the tendency for tetracycline-induced biospectral alterations to occur in outer-cellular components, e.g., phospholipids or proteins, while AgNPs-induced changes are mainly associated with proteins (~964 cm-1, ~1485 cm-1, ~1550 cm-1, ~1650 cm-1). The primary altered targets are correlated with bacterial membranes or outer-cellular components. Furthermore, significant lipid changes at 1705-1750 cm-1 were only present in P. fluorescens cells compared to M. vanbaalenii, owing to differences in cell wall structure between Gram-positive and -negative bacteria. This study also found distinct biospectral alterations in non-log phase compared to log phase, confirming bacterial growth-dependent responses to environmental exposures. It implies that previous studies on log phase only may underestimate the impacts from exposures of interest in situ, where bacteria stay in different growth stages. Our work proves the feasibility of biospectroscopy in determining bacterial responses to low-level environmental exposures in a fast and efficient manner, revealing sufficient biochemical information continuously through growth phases. As a nondestructive approach, biospectroscopy may provide deeper insights into the actual and in situ interactions between microbes and environmental stimuli, regardless of the exposure level, growth phase, or bacterial types. PMID- 29327007 TI - Contact laws between nanoparticles: the elasticity of a nanopowder. AB - Studies of the mechanical contact between nanometer-scale particles provide fundamental insights into the mechanical properties of materials and the validity of contact laws at the nanoscale which are still under debate for contact surfaces approaching atomic dimensions. Using in situ Brillouin light scattering under high pressure, we show that effective medium theories successfully predict the macroscopic sound velocities in nanopowders if one takes into account the cementation of the contacts Our measurements suggest the relevance of the continuum approach and effective medium theories to describe the contact between nanoparticles of diameters as small as 4 nm, i.e. with radii of contact of a few angstroms. In particular, we demonstrate that the mechanical properties of nanopowders strongly depend on the surface state of the nanoparticles. The presence of molecular adsorbates modifies significantly the contact laws. PMID- 29327008 TI - An upconversion nanoparticle-based fluorescence resonance energy transfer system for effectively sensing caspase-3 activity. AB - We report a new fluorescence resonance energy transfer (FRET) sensing platform for the sensitive detection of caspase-3 activity in vitro and in cells using NaGdF4:Yb3+,Er3+@NaGdF4 upconversion nanoparticles (UCNPs) as the energy donor and Rhodamine B (RB) as the energy acceptor. The phosphorylated RB-modified peptide containing a caspase-3 cleavage site and cell-penetrating peptide (CPP) motif (sequence, (RB)-DEVDGGS(p)GCGT(p)GRKKRRQRRRPQ) is immobilized on the UCNP surface via the strong coordination interaction between Gd3+ ions with phosphate. After the cleavage of DEVD by caspase-3, the RB is released from the UCNP surface and the reduced upconversion luminescence (UCL) is recovered. Under the optimum conditions, the recovery ratio of the UCL is linearly dependent on the caspase-3 concentration within the range of 0.01 to 1000 pg mL-1 and with a limit of detection (LOD) of 0.01 pg mL-1 (S/N = 3). In particular, the as-proposed UCNP based FRET sensing platform has reasonable selectivity which is successfully employed to monitor caspase-3 activity in drug-induced apoptosis of HeLa cells. PMID- 29327009 TI - Fluorescent and magnetic anti-counterfeiting realized by biocompatible multifunctional silicon nanoshuttle-based security ink. AB - Herein, we present the first example of a silicon nanoshuttle-based security ink simultaneously featuring attractive optical and magnetic properties, suitable for fluorescent and magnetic anti-counterfeiting and encryption. Significantly, the information can be dual-encrypted through multi-color fluorescence and longitudinal (T1)/transverse (T2) relaxation contrast by using the silicon nanoshuttle-based security ink. We further demonstrate the feasibility of this high-performance ink for practical application in banknote anti-counterfeiting. PMID- 29327010 TI - DNA methylation assay using droplet-based DNA melting curve analysis. AB - DNA methylation is an epigenetic regulation of gene expression, which has drawn great attention in biomedical research due to its association with various diseases. A robust, inexpensive platform to detect and quantify the methylation status in a specific genomic region is necessary. In this study, an on-chip analytical technique of cytosine methylation with droplets in a microchannel is proposed. Genomic DNA samples are encapsulated into a series of droplets and transported through a detection region, where a stable temperature gradient is created. As the temperature is elevated from 60 degrees C to 85 degrees C, the DNA samples denature and the associated fluorescence signals decay, with the relationship being acquired as the melting curve. The droplets serve as discrete reactors for conducting DNA melting curve analysis in the liquid phase, thereby eliminating the need for immobilization of reagents. Due to a high heating rate and greater enhanced thermal stability, this microchip allows larger melting temperature differences for the samples at different percentages of methylated DNA. It has an enhanced discrimination ability and lower volume consumption, compared to the commercial qPCR machine. This chip enables quantification of the methylation levels of the pluripotent stem cell factor Oct-4 in its distal enhancer (DE) region, with a designed probe after bisulfite treatment and asymmetric PCR. PMID- 29327011 TI - Highly reversible and fast sodium storage boosted by improved interfacial and surface charge transfer derived from the synergistic effect of heterostructures and pseudocapacitance in SnO2-based anodes. AB - Sodium-ion batteries have attracted worldwide attention as potential alternatives for large scale stationary energy storage due to the rich reserves and low cost of sodium resources. However, the practical application of sodium-ion batteries is restricted by unsatisfying capacity and poor rate capability. Herein, a novel mechanism of improving both interfacial and surface charge transfer is proposed by fabricating a graphene oxide/SnO2/Co3O4 nanocomposite through a simple hydrothermal method. The formation of heterostructures between ultrafine SnO2 and Co3O4 could enhance the charge transfer of interfaces owing to the internal electric field. The pseudocapacitive effect, which is led by the high specific area and the existence of ultrafine nanoparticles, takes on a feature of fast faradaic surface charge-transfer. Benefiting from the synergistic advantages of the heterostructures and the pseudocapacitive effect, the as-prepared graphene oxide/SnO2/Co3O4 anode achieved a high reversible capacity of 461 mA h g-1 after 80 cycles at a current density of 0.1 A g-1. Additionally, at a high current density of 1 A g-1, a high reversible capacity of 241 mA h g-1 after 500 cycles is obtained. A full cell coupled by the as-prepared graphene oxide/SnO2/Co3O4 anode and the Na3V2(PO4)3 cathode was also constructed, which exhibited a reversible capacity of 310.3 mA h g-1 after 100 cycles at a current density of 1 A g-1. This method of improving both interfacial and surface charge transfer may pave the way for the development of high performance sodium-ion batteries. PMID- 29327012 TI - Low-force spectroscopy on graphene membranes by scanning tunneling microscopy. AB - Two-dimensional atomically flat sheets with a high mechanical flexibility are very attractive as ultrathin membranes but are also inherently challenging for microscopic investigations. We report on a method using Scanning Tunneling Microscopy (STM) under ultra-high vacuum conditions for non-indenting low-force spectroscopy on micrometer-sized freestanding graphene membranes. The method is based on applying quasi-static voltage ramps with active feedback at low tunneling currents and ultimately relies on the attractive electrostatic force between the tip and the membrane. As a result a bulge-test scenario can be established. The convenience and simplicity of the method relies on the fact that the loading force and the membrane deflection detection are both provided simultaneously by the STM. This permits the continuous measurement of the stress strain relation. Electrostatic forces applied are typically below 1 nN and the membrane deflection is detected at sub-nanometer resolution. Experiments on single-layer graphene membranes with a strain of 0.1% reveal a two-dimensional elastic modulus E2D = 220 N m-1. PMID- 29327013 TI - Thienylene vinylene dimerization: from solution to self-assembled monolayer on gold. AB - The electrochemical and spectroelectrochemical studies of thienylene vinylene (TV) derivatives in the immobilized state are compared with the ones obtained in solution. The results highlight the exaltation of the dimerization process onto TV-based self-assembled monolayers, in which the pi interaction is maintained even after 75% dilution. PMID- 29327015 TI - A water-soluble, bay-functionalized perylenediimide derivative - correlating aggregation and excited state dynamics. AB - The aggregation and the photophysics of a water soluble perylenediimide (PDI) derivative that features two bromine substituents in the bay positions has been probed. Non-fluorescent aggregates were found to be present at concentrations of 1.0 * 10-5 M. In situ small-angle X-ray scattering (SAXS) measurements and complementary molecular modeling showed the presence of PDI aggregates. In their singlet excited states, the PDI aggregates are characterized by distinct transient fingerprints and rapid deactivation, as revealed by pump-probe experiments on the femto-, pico-, nano-, and microsecond timescales. The product of this deactivation is a PDI triplet excited state. The efficiency of the triplet formation depends on the concentration, and hence on the degree of aggregation. Notably, for PDI concentrations in the range of the critical micelle concentration, the efficiency of intersystem crossing is close to zero. In short, we have demonstrated, for the first time, aggregation-induced formation of triplet excited states for PDI derivatives. PMID- 29327014 TI - Design of biomimetic substrates for long-term maintenance of alveolar epithelial cells. AB - There is a need to establish in vitro lung alveolar epithelial culture models to better understand the fundamental biological mechanisms that drive lung diseases. While primary alveolar epithelial cells (AEC) are a useful option to study mature lung biology, they have limited utility in vitro. Cells that survive demonstrate limited proliferative capacity and loss of phenotype over the first 3-5 days in traditional culture conditions. To address this limitation, we generated a novel physiologically relevant cell culture system for enhanced viability and maintenance of phenotype. Here we describe a method utilizing e-beam lithography, reactive ion etching, and replica molding to generate poly-dimethylsiloxane (PDMS) substrates containing hemispherical cavities that mimic the architecture and size of mouse and human alveoli. Primary AECs grown on these cavity containing substrates form a monolayer that conforms to the substrate enabling precise control over cell sheet architecture. AECs grown in cavity culture conditions remain viable and maintain their phenotype over one week. Specifically, cells grown on substrates consisting of 50 MUm diameter cavities remained 96 +/- 4% viable and maintained expression of surfactant protein C (SPC), a marker of type 2 AEC over 7 days. While this report focuses on primary lung alveolar epithelial cells, our culture platform is potentially relevant and useful for growing primary cells from other tissues with similar cavity-like architecture and could be further adapted to other biomimetic shapes or contours. PMID- 29327016 TI - Isoenergic modification of whey protein structure by denaturation and crosslinking using transglutaminase. AB - Transglutaminase (TG) catalyzes formation of covalent bonds between lysine and glutamine side chains and has applications in manipulation of food structure. Physical properties of a whey protein mixture (SPC) denatured either at elevated pH or by heat-treatment and followed by TG catalyzed crosslinking, have been characterised using dynamic light scattering, size exclusion chromatography, flourescence spectroscopy and atomic force microscopy. The degree of enzymatic crosslinking appeared higher for pH- than for heat-denatured SPC. The hydrophobic surface properties depended on the treatment, thus heating caused the largest exposure of the hydrophobic core of SPC proteins, which was decreased by crosslinking. The particle size of the treated SPC samples increased upon crosslinking by TG. Moreover, the particle morphology depended on the type of denaturing treatment, thus heat-treated SPC contained fibrillar structures, while pH-denatured SPC remained globular as documented by using atomic force microscopy. Finally, the in vitro digestability of the different SPC samples was assessed under simulated gastric and intestinal conditions. Notably heat treatment was found to lower the gastric digestion rate and enzymatic crosslinking reduced both the gastric and the intestinal rate of digestion. These characteristics of the various SPC samples provide a useful basis for design of isoenergic model foods applicable in animal and human studies on how food structure affects satiety. PMID- 29327017 TI - A significant role of non-thermal equilibrated electrons in the formation of deleterious complex DNA damage. AB - Although most of the radiation damage to genomic DNA could be rendered harmless using repair enzymes in a living cell, a certain fraction of the damage is persistent resulting in serious genetic effects, such as mutation induction. In order to understand the mechanisms of the deleterious DNA damage formation in terms of its earliest physical stage at the radiation track end, dynamics of low energy electrons and their thermalization processes around DNA molecules were investigated using a dynamic Monte Carlo code. The primary incident (1 keV) electrons multiply collide within 1 nm (equivalent to three DNA-base-pairs, 3bp) and generate secondary electrons which show non-Gaussian and non-thermal equilibrium distributions within 300 fs. On the other hand, the secondary electrons are mainly distributed within approximately 10 nm from their parent cations although approximately 5% of the electrons are localized within 1 nm of the cations owing to the interaction of their Coulombic fields. The mean electron energy is 0.7 eV; however, more than 10% of the electrons fall into a much lower energy region than 0.1 eV at 300 fs. These results indicate that pre-hydrated electrons are formed from the extremely decelerated electrons over a few nm from the cations. DNA damage sites comprising multiple nucleobase lesions or single strand breaks can therefore be formed by multiple collisions of these electrons within 3bp. This multiple damage site is hardly processed by base excision repair enzymes. However, pre-hydrated electrons can also be produced resulting in an additional base lesion (or a strand break) more than 3bp away from the multi damage site. These damage sites may be finally converted into a double strand break (DSB) when base excision enzymes process the additional base lesions. This DSB includes another base lesion(s) at their termini, and may introduce miss rejoining by DSB repair enzymes, and hence may result in biological effects such as mutation in surviving cells. PMID- 29327018 TI - The mechanism for the stabilization and surfactant properties of epitaxial silicene. AB - Using real-time in situ scanning tunneling microscopy and density functional theory simulations, we have studied the growth of Si films on Ag(111) beyond the silicene monolayer, evidencing the existence of metastable phases and an original growth mechanism. Above monolayer Si coverage, an initial structure forms, which is identified as an Ag-free Si bilayer with additional Si adatoms. With further deposition, this structure is replaced by a distinct bilayer structure covered by Si trimers and Ag atoms. The formation of these bilayers follows counterintuitive dynamics: they are partially inserted within the Ag substrate and form by expelling, from the underlying substrate, the atoms that reinsert below the adjacent silicene layer. The growth is therefore characterized by an unexpected "surfactant competition" between Ag and silicene: while silicene is a metastable surfactant for the Ag(111) surface, Ag plays the role of a surfactant for thicker diamond-like Si islands. In spite of being thermodynamically unfavoured, the silicene monolayer is, thus, a remarkably stable structure because of the high kinetic barrier for the growth of thicker layers. PMID- 29327019 TI - Using a novel rigid-fluoride polymer to control the interfacial thickness of graphene and tailor the dielectric behavior of poly(vinylidene fluoride trifluoroethylene-chlorotrifluoroethylene) nanocomposites. AB - Polymer nanocomposites based on conductive fillers for high performance dielectrics have attracted increasing attention in recent years. However, a number of physical issues are unclear, such as the effect of interfacial thickness on the dielectric properties of the polymer nanocomposites, which limits the enhancement of permittivity. In this research, two core-shell structured reduced graphene oxide (rGO)@rigid-fluoro-polymer conducting fillers with different shell thicknesses are prepared using a surface-initiated reversible-addition-fragmentation chain transfer polymerization method, which are denoted as rGO@PTFMS-1 with a thin shell and rGO@PTFMS-2 with a thick shell. A rigid liquid crystalline fluoride-polymer poly{5-bis[(4-trifluoro methoxyphenyl)oxycarbonyl]styrene} (PTFMS) is chosen for the first time to tailor the shell thicknesses of rGO via tailoring the degree of polymerization. The effect of interfacial thickness on the dielectric behavior of the P(VDF-TrFE CTFE) nanocomposites with rGO and modified rGO is studied in detail. The results demonstrate that the percolation threshold of the nanocomposites increased from 0.68 vol% to 1.69 vol% with an increase in shell thickness. Compared to the rGO@PTFMS-1/P(VDF-TrFE-CTFE) composites, the rGO@PTFMS-2/P(VDF-TrFE-CTFE) composites exhibited a higher breakdown strength and a lower dielectric constant, which can be interpreted by interfacial polarization and the micro-capacitor model, resulting from the insulating nature of the rigid-polymer shell and the change of rGO's morphology. The findings provide an innovative approach to tailor dielectric composites, and promote a deeper understanding of the influence of interfacial region thickness on the dielectric performance. PMID- 29327020 TI - Magnetic properties of core-shell nanoparticles possessing a novel Fe(ii)-chromia phase: an experimental and theoretical approach. AB - Room-temperature ferrimagnetic and superparamagnetic properties, and the magnetic interactions between the core and shell, of our iron-incorporated chromia-based core shell nanoparticles (CSNs) have been investigated using a combination of experimental measurement and density functional theory (DFT) based calculations. We have synthesized CSNs having an epitaxial shell and well-ordered interface properties by utilizing our hydrothermal nanophase epitaxy (HNE) technique. The ferrimagnetic and superparamagnetic properties of the CSNs are manifested beyond room temperature and magnetic measurements reveal that the exchange bias interaction between the antiferromagnetic (AFM) core and ferrimagnetic (FiM) shell persists close to ambient temperature. The DFT calculations confirm the FiM ordering of the Fe-chromia shell. Our calculations show that the FiM ordering is associated with a band gap reduction, Fe-O d-p orbital hybridization, and AFM type Fe-Cr sigma type superexchange interaction in the alpha-Fe0.40Cr1.60O2.92 shell of the CSNs. The novel magnetic core-shell nanoparticles possess a shell comprised of a metastable Fe(ii)-chromia phase, resulting in unique magnetic properties that make them ideal for magnetic device and medicinal applications. PMID- 29327021 TI - Formation of copper nanoparticles in LTL nanosized zeolite: spectroscopic characterization. AB - The state of copper species stabilized in nanosized LTL zeolite subjected to various post-synthesis treatments was unveiled by a range of spectroscopic techniques. FTIR and UV-Vis studies demonstrated that the reduction process of copper in the LTL nanosized zeolite leads to the formation of different species including Cu2+, Cu+ and Cu nanoparticles (Cu NPs). The adsorption of probe molecules (NO and CO) was used to selectively monitor the copper species in the LTL nanosized zeolite upon oxidation and reduction post-synthesis treatments. Both the Cu2+ and Cu+ species were probed by NO and CO, respectively. The amount of Cu+ in the LTL zeolite nanocrystals was about 43% as determined by FTIR, while the amount of Cu NPs was about 55% determined by the UV-Vis spectroscopic characterization. These results were complemented by EPR, 29Si and 63Cu MAS NMR spectroscopic data. The EPR spectroscopy was further applied to monitor the effective reduction of the Cu2+ species and their re-oxidation, while the 63Cu MAS NMR verified the presence of Cu NPs in the LTL nanosized zeolite crystals. PMID- 29327022 TI - On the approximation of independent pairs in diffusion kinetics: correlation of distances in a three-body system. AB - This study investigates the problem of diffusion kinetics in a three-body system, motivated by the theory of radiation chemical kinetics. The backward diffusion equation for the joint density of the distances is formulated, and an explicit formula for the infinitesimal covariance of two diffusing distances is derived. The Clifford-Green theorem is used to show how the infinitesimal covariance of two distances is linked to the covariance of the corresponding two squared distances as time evolves. In addition, computer simulations for the problem are presented, which indicate that hitting probabilities are also correlated. While the results indicate that more work is needed before a usable correction to the independence approximation is possible, clear progress has been made. PMID- 29327023 TI - A step towards understanding the beneficial influence of a LIPON-based artificial SEI on silicon thin film anodes in lithium-ion batteries. AB - In this work, we present a comprehensive study on the influence of lithium phosphorus oxynitride (LIPON) as a possible "artificial SEI layer" on the electrochemical performance of pure silicon (Si) thin film electrodes for a possible application in microbatteries or on-chip batteries. Si thin film anodes (140 nm) with and without an additional amorphous LIPON surface layer of different thicknesses (100-300 nm) were prepared by magnetron sputter deposition. The LIPON surface coating was characterized thoroughly by means of electrochemical impedance spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy and atomic force microscopy. In situ electrochemical dilatometry and ex situ cross-section analysis of the electrodes after cycling could prove that the LIPON coating greatly diminishes the volume expansion of the Si electrode and, therefore, significantly improves the cycling stability and capacity retention. Furthermore, the LIPON coating remarkably reduces parasitic electrolyte decomposition reactions that originate from the Si volume expansion and contribute to the overall electrode volume expansion, as observed by the enhanced Coulombic efficiency over ongoing charge/discharge cycling. Overall, this article focuses on the preparation of optimized Si-based thin film electrodes in combination with LIPON solid electrolyte coatings for use in high energy lithium ion batteries. PMID- 29327025 TI - Unraveling the mechanical behaviour of hydrazine borane (NH2-NH2-BH3). AB - Crystalline B-N-H compounds of low molecular weight have been intensively investigated over the past two decades owing to their promises for chemical hydrogen storage. Hydrazine borane NH2-NH2-BH3 is one of the most recent examples of this family of materials. In the present work, we explored its structural behaviour under mechanical stimulus by synchrotron high pressure X-ray diffraction. It has been evidenced that hydrazine borane shows a gradual pressure induced decrease of its unit cell dimension and the process is reversible when the applied pressure is released. The compressibility of this material was established to be relatively low (high bulk modulus) and highly anisotropic. As revealed by molecular simulations based on Density Functional Theory calculations, the mechanical behaviour of NH2-NH2-BH3 was correlated to the pressure-induced changes of its crystal structure in terms of intra- and intermolecular bond lengths and angles parameters. PMID- 29327024 TI - A lithium-ion oxygen battery with a Si anode lithiated in situ by a Li3N containing cathode. AB - A practicable strategy has been developed to build a LixSi-O2 battery using an in situ formed Li-Si alloy anode based on the decomposition of Li3N pre-loaded in the cathode. The LixSi-O2 battery has achieved more than 100 stable charge discharge cycles with lower polarization than that using a lithium metal anode. PMID- 29327026 TI - FeCl3-catalyzed dimerization/elimination of 1,1-diarylalkenes: efficient synthesis of functionalized 4H-chromenes. AB - An efficient synthesis of valuable poly-substituted 4H-chromenes was developed via a [4 + 2] cycloaddition followed by the elimination of 1,1-diarylalkenes. The inexpensive FeCl3 salt has proven to be an efficient catalyst for this transformation. The commercial availability of the catalyst and reagents, together with a convenient procedure, makes this an attractive method for 4H chromene synthesis. PMID- 29327027 TI - Polymersomes with asymmetric membranes and self-assembled superstructures using pentablock quintopolymers resolved by electron tomography. AB - Polystyrene-block-poly(1,4-isoprene)-block-poly(dimethyl siloxane)-block poly(tert-butyl methacrylate)-block-poly(2-vinyl pyridine), PS-b-PI-b-PDMS-b PtBMA-b-P2VP, self-assembles in acetone into polymersomes with asymmetric (directional) PI-b-PDMS membranes. The polymersomes, in turn, self-assemble into superstructures. Analogically to supravesicular structures at a smaller length scale, we refer to them as suprapolymersome structures. Electron tomograms are shown to be invaluable in the structural assessment of such complex self assemblies. PMID- 29327028 TI - Transition metals and trace elements in the retinal pigment epithelium and choroid: correlative ultrastructural and chemical analysis by analytical electron microscopy and nano-secondary ion mass spectrometry. AB - Understanding the localisation and abundance of structural elements, trace elements and especially transition metals like Cu and Zn in ocular tissue sections is important for physiology, and also for the characterisation of diseases related to oxidative stress like age-related macular degeneration. Transition metal abundances were investigated in an aged donor eye by nano secondary ion mass spectrometry (nano-SIMS) elemental mapping using Cs+ and O- primary ions, respectively, and correlated to their respective mole fractions investigated by analytical electron microscopy (AEM). The ultrastructure of the tissue and the elemental composition of melanosomes of the choroid and RPE, and RPE lipofuscin and melanolipofuscin granules can adequately be investigated by nano-SIMS using the secondary ion maps. Melanosomes, 0.5-1 MUm in size, yield sulphur maps and maps of stored metals like calcium, sodium and copper. Lipofuscin shows especially high phosphorus signals. Elements with mole fractions of about 0.1 at%, e.g. for P and Cu, as investigated by AEM before, can be validated using simultaneous SIMS maps with an estimated lateral resolution of 66 nm with typical acquisition times of 30 minutes for each area of interest. However, Zn (0.19 at%) was not detected by SIMS. Nano-SIMS imaging of CN-, PO2-, S-, Cu-, Ca+, Fe+ and Na+ ions provides excellent detection limits demonstrating the possibilities for chemical mapping with high-sensitivity trace element detection and reduced acquisition times. Quantification of nano-SIMS data was achieved by correlating mole fractions obtained by AEM to secondary ions per pixel obtained by nano-SIMS. Both methods yield the melanin type in melanosomes and trace metal storage. PMID- 29327029 TI - Bio-inspired robust non-iridescent structural color with self-adhesive amorphous colloidal particle arrays. AB - Here we propose a new method for constructing highly color fast non-iridescent structural color materials by assembling self-adhesive poly-dopamine coated SiO2 nanoparticles (PDA@SiO2) for amorphous colloidal arrays through a "spraying" process. Simply by alkaline vapor treatment, the adhesive forces and fastness of the amorphous colloidal arrays were significantly improved. This was demonstrated by lap shear tests of tape tearing and cohesive failure as well as a series of fastness tests like sandpaper abrasion, finger wiping and ultrasonic cleaning. Besides, the strengthening fastness reaction could occur on different substrates, including glass, metals, polymers and paper, regardless of their chemical and physical properties. Moreover, the structural color of the PDA@SiO2 arrays was bright due to the broadband absorption of PDA, and was tunable according to the size, PDA content and arrangement of the PDA@SiO2 arrays. PMID- 29327030 TI - Novel ruthenium and iridium complexes of N-substituted carbazole as triplet photosensitisers. AB - Novel mono- and di-nuclear Ru(ii) and Ir(iii) complexes, bearing a modified carbazole moiety are synthesised. In comparison to their mononuclear analogues, the homonuclear diatomic complexes (RuCRu and IrCIr), in which the carbazole containing-ligand functions as a bridge, display increased absorbance in the visible region, and give rise to higher singlet oxygen quantum yields. PMID- 29327031 TI - A thin CdSe shell boosts the electron transfer from CdTe quantum dots to methylene blue. AB - CdTe core and CdTe/CdSe core/shell quantum dots (QD) are investigated with steady state and time-resolved spectroscopic methods. The coating of the CdTe core with a 0.7 nm thick CdSe shell shifts the lowest exciton absorption band to the red by more than 70 nm making the CdTe/CdSe QD an interesting candidate for application in solar energy conversion. Femtosecond transient absorption measurements are applied to study the photoinduced electron transfer (ET) to the molecular acceptor methylene blue (MB). ET times after single excitation of the QD are determined for different MB : QD ratios. The ET reaction is significantly faster in the case of the MB-CdTe/CdSe QD complexes, indicative of an altered charge distribution in the photoexcited heterostructure with a higher electron density in the CdSe shell. As a result of the efficient absorption of incoming light and the faster ET reaction, the amount of reduced MB in the time resolved experiments is higher for CdTe/CdSe QD compared to CdTe QD. PMID- 29327032 TI - Three-dimensional Volumetric Analysis of 3 Fat-Processing Techniques for Facial Fat Grafting: A Randomized Clinical Trial. AB - Importance: Autologous fat grafting has revolutionized the field of facial soft tissue augmentation, despite a lack of standardization. Objective data are needed to arrive at consensus regarding the best technique for optimal volume retention. Objective: To compare 3 fat-processing techniques with 3-dimensional (3-D) technology to explore the optimal fat-processing technique for improving the volume retention of grafted fat. Design, Setting, and Participants: From September 2015 to December 2016, patients with facial asymmetry were treated by initial facial fat grafting at the Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. Sixty-three patients (21 per group) were randomized to 1 of 3 fat-processing techniques: sedimentation, centrifugation, and cotton pad filtration. Patients underwent 3-D scanning preoperatively and at 1, 3, 6, and 12 months postoperatively. Patients who did not complete preoperative or postoperative follow-up and 3-D imaging were excluded from the analysis. Intervention: Autologous fat grafting to correct facial asymmetry. Main Outcomes and Measures: The percentage volume maintenance of each fat-processing technique was measured with 3-D software and analyzed with variance analysis. Results: Of the 63 randomized patients, 30 (7 men, 23 women; mean [SD] age at surgery, 22.2 [8.0] years) completed follow-up. The mean (SD) percentage volume maintenance of the 3 groups at 1, 3, 6, and 12 months postoperatively was, respectively, 49% (4%), 45% (3%), 43% (3%), and 41% (3%) for the cotton pad filtration group; 41% (3%), 38% (4%), 36% (4%), and 34% (3%) for the centrifugation group; and 37% (4%), 34% (4%), 31% (3%), and 31% (3%) for sedimentation group. The variance analysis showed that the cotton pad filtration group demonstrated a statistically significant higher percentage volume maintenance in comparison with the centrifugation and sedimentation groups. Conclusions and Relevance: The use of 3-D technology provides an objective and accurate way to evaluate different fat-processing techniques. Autologous fat processed by cotton pad filtration had a significant higher volume retention than did that processed by centrifugation and sedimentation technique. Trial Registration: chictr.org.cn Identifier: ChiCTR-IOR-14005599. Level of Evidence: 1. PMID- 29327033 TI - Disorganization of Inner Retina and Outer Retinal Morphology in Diabetic Macular Edema. AB - Importance: In diabetic macular edema (DME), identification of baseline markers on spectral-domain optical coherence tomography (SD-OCT) and their association with severity of diabetic retinopathy (DR) might aid in disease management and the design of future trials. Objective: To examine associations between DR severity, retinal morphology on SD-OCT, and visual acuity in participants with DME. Design, Setting, and Participants: This cross-sectional observational case series was conducted at a single tertiary care referral center. Demographics, visual acuity, SD-OCT, and color fundus photographs of 80 individuals with DME (102 eyes) seen between December 28, 2013, and April 30, 2014, were analyzed between May 1 and July 31, 2016. Main Outcomes and Measures: Features captured on SD-OCT and thickness metrics. On SD-OCT we graded type and shape of DME, shape and presence of septae within the intraretinal cystoid abnormalities, presence of hyperreflective dots and foci, integrity of the external limiting membrane and ellipsoid zone, presence and extent of disorganization of the inner retinal layers (DRIL), and the status of the vitreomacular interface and epiretinal membrane. We measured retinal thickness at the fovea and at the site of maximum pathology, choroidal thickness at the fovea, and 1000 MUm temporal and nasal to the fovea. Color photographs were graded to derive a DR severity stage. Results: The mean (SD) age was 63 (11) years, and 30 participants (37.5%) were women. The odds of having DRIL were greater in eyes with disrupted external limiting membrane (odds ratio [OR], 4.4; 95% CI, 1.6-12.0; P = .003), disrupted ellipsoid zone (OR, 2.7; 95% CI, 1.0-7.2; P = .03), presence of epiretinal membrane (OR, 2.8; 95% CI, 1.0-7.4; P = .03), and increase in retinal thickness at the fovea (OR, 1.6; 95% CI, 1.1-2.2; P < .001). Occurrence of DRIL was more likely in eyes with proliferative DR (OR, 7.3; 95% CI, 1.7-31.4; P = .007). Mean visual acuity decreased by approximately 4.7 letters for each 100-MUm increase in the average global DRIL (95% CI, -7.9 to 1.4; P = .006). Conclusions and Relevance: An association was found between DRIL and disruption of the outer retina and increasing DR severity. Further longitudinal studies seem warranted to determine whether DRIL is a clinically relevant noninvasive morphological marker in eyes with DME. PMID- 29327034 TI - The Rise and Fall of Mandatory Cardiac Bundled Payments. PMID- 29327035 TI - Recurrent Monocular Vision Loss and an Ocular Mass. PMID- 29327036 TI - Facial Pain and Diplopia in a Young Boy. PMID- 29327039 TI - Efficacy and Toxic Effects of Cancer Immunotherapy Combinations-A Double-edged Sword. PMID- 29327040 TI - A Surgical Procedure Grid for Safety and Operating Room Communication in Multisite Surgery. PMID- 29327042 TI - Transsaccadic memory of multiple spatially variant and invariant object features. AB - Transsaccadic memory is a process by which remembered object information is updated across a saccade. To date, studies on transsaccadic memory have used simple stimuli-that is, a single dot or feature of an object. It remains unknown how transsaccadic memory occurs for more realistic, complex objects with multiple features. An object's location is a central feature for transsaccadic updating, as it is spatially variant, but other features such as size are spatially invariant. How these spatially variant and invariant features of an object are remembered and updated across saccades is not well understood. Here we tested how well 14 participants remembered either three different features together (location, orientation, and size) or a single feature at a time of a bar either while fixating either with or without an intervening saccade. We found that the intervening saccade influenced memory of all three features, with consistent biases of the remembered location, orientation, and size that were dependent on the direction of the saccade. These biases were similar whether participants remembered either a single feature or multiple features and were not observed with increased memory load (single vs. multiple features during fixation trials), confirming that these effects were specific to the saccade updating mechanisms. We conclude that multiple features of an object are updated together across eye movements, supporting the notion that spatially invariant features of an object are bound to their location in memory. PMID- 29327041 TI - Common constraints limit Korean and English character recognition in peripheral vision. AB - The visual span refers to the number of adjacent characters that can be recognized in a single glance. It is viewed as a sensory bottleneck in reading for both normal and clinical populations. In peripheral vision, the visual span for English characters can be enlarged after training with a letter-recognition task. Here, we examined the transfer of training from Korean to English characters for a group of bilingual Korean native speakers. In the pre- and posttests, we measured visual spans for Korean characters and English letters. Training (1.5 hours * 4 days) consisted of repetitive visual-span measurements for Korean trigrams (strings of three characters). Our training enlarged the visual spans for Korean single characters and trigrams, and the benefit transferred to untrained English symbols. The improvement was largely due to a reduction of within-character and between-character crowding in Korean recognition, as well as between-letter crowding in English recognition. We also found a negative correlation between the size of the visual span and the average pattern complexity of the symbol set. Together, our results showed that the visual span is limited by common sensory (crowding) and physical (pattern complexity) factors regardless of the language script, providing evidence that the visual span reflects a universal bottleneck for text recognition. PMID- 29327043 TI - Association of Oral Microbiome With Risk for Incident Head and Neck Squamous Cell Cancer. AB - Importance: Case-control studies show a possible relationship between oral bacteria and head and neck squamous cell cancer (HNSCC). Prospective studies are needed to examine the temporal relationship between oral microbiome and subsequent risk of HNSCC. Objective: To prospectively examine associations between the oral microbiome and incident HNSCC. Design, Setting, and Participants: This nested case-control study was carried out in 2 prospective cohort studies: the American Cancer Society Cancer Prevention Study II Nutrition Cohort (CPS-II) and the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial (PLCO). Among 122 004 participants, 129 incident patient cases of HNSCC were identified during an average 3.9 years of follow-up. Two controls per patient case (n = 254) were selected through incidence density sampling, matched on age, sex, race/ethnicity, and time since mouthwash collection. All participants provided mouthwash samples and were cancer-free at baseline. Exposures: Oral microbiome composition and specific bacterial abundances were determined through bacterial 16S rRNA gene sequencing. Overall oral microbiome composition and specific taxa abundances were compared for the case group and the control group, using PERMANOVA and negative binomial generalized linear models, respectively, controlling for age, sex, race, cohort, smoking, alcohol, and oral human papillomavirus-16 status. Taxa with a 2-sided false discovery rate (FDR) adjusted P-value (q-value) <.10 were considered significant. Main Outcomes and Measures: Incident HNSCC. Results: The study included 58 patient cases from CPS II (mean [SD] age, 71.0 [6.4] years; 16 [27.6%] women) and 71 patient cases from PLCO (mean [SD] age, 62.7 [4.8] years; 13 [18.3%] women). Two controls per patient case (n = 254) were selected through incidence density sampling, matched on age, sex, race/ethnicity, and time since mouthwash collection. Head and neck squamous cell cancer cases and controls were similar with respect to age, sex, and race. Patients in the case group were more often current tobacco smokers, tended to have greater alcohol consumption (among drinkers), and to be positive for oral carriage of papillomavirus-16. Overall microbiome composition was not associated with risk of HNSCC. Greater abundance of genera Corynebacterium (fold change [FC], 0.58; 95% confidence interval [CI], 0.41-0.80; q = .06) and Kingella (FC, 0.63; 95% CI, 0.46-0.86; q = .08) were associated with decreased risk of HNSCC, potentially owing to carcinogen metabolism capacity. These findings were consistent for both cohorts and by cohort follow-up time. The observed relationships tended to be stronger for larynx cancer and for individuals with a history of tobacco use. Conclusions and Relevance: This study demonstrates that greater oral abundance of commensal Corynebacterium and Kingella is associated with decreased risk of HNSCC, with potential implications for cancer prevention. PMID- 29327046 TI - Optical Coherence Tomographic Analysis of the Optic Nerve Head and Surrounding Structures in Space Flight-Associated Neuro-ocular Syndrome. PMID- 29327044 TI - Association of the Lung Immune Prognostic Index With Immune Checkpoint Inhibitor Outcomes in Patients With Advanced Non-Small Cell Lung Cancer. AB - Importance: Derived neutrophils/(leukocytes minus neutrophils) ratio (dNLR) and lactate dehydrogenase (LDH) level have been correlated with immune checkpoint inhibitor (ICI) outcomes in patients with melanoma. Objective: To determine whether pretreatment dNLR and LDH are associated with resistance to ICIs in patients with advanced non-small cell lung cancer (NSCLC). Design, Setting, and Participants: Multicenter retrospective study with a test (n = 161) and a validation set (n = 305) treated with programmed death 1/programmed death ligand 1 (PD-1/PD-L1) inhibitors in 8 European centers, and a control cohort (n = 162) treated with chemotherapy only. Complete blood cell counts, LDH, and albumin levels were measured before ICI treatment. A lung immune prognostic index (LIPI) based on dNLR greater than 3 and LDH greater than upper limit of normal (ULN) was developed, characterizing 3 groups (good, 0 factors; intermediate, 1 factor; poor, 2 factors). Main Outcomes and Measures: The primary end point was overall survival (OS). Secondary end points were progression-free survival (PFS) and disease control rate (DCR). Results: In the pooled ICI cohort (N = 466), 301 patients (65%) were male, 422 (90%) were current or former smokers, and 401 (87%) had performance status of 1 or less; median age at diagnosis was 62 (range, 29 86) years; 270 (58%) had adenocarcinoma and 159 (34%) had squamous histologic subtype. Among 129 patients with PD-L1 data, 96 (74%) had PD-L1 of at least 1% by immunohistochemical analysis, and 33 (26%) had negative results. In the test cohort, median PFS and OS were 3 (95% CI, 2-4) and 10 (95% CI, 8-13) months, respectively. A dNLR greater than 3 and LDH greater than ULN were independently associated with OS (hazard ratio [HR] 2.22; 95% CI, 1.23-4.01 and HR, 2.51; 95% CI, 1.32-4.76, respectively). Median OS for poor, intermediate, and good LIPI was 3 months (95% CI, 1 month to not reached [NR]), 10 months (95% CI, 8 months to NR), and 34 months (95% CI, 17 months to NR), respectively, and median PFS was 2.0 (95% CI, 1.7-4.0), 3.7 (95% CI, 3.0-4.8), and 6.3 (95% CI, 5.0-8.0) months (both P < .001). Disease control rate was also correlated with dNLR greater than 3 and LDH greater than ULN. Results were reproducible in the ICI validation cohort for OS, PFS, and DCR, but were nonsignificant in the chemotherapy cohort. Conclusions and Relevance: Pretreatment LIPI, combining dNLR greater than 3 and LDH greater than ULN, was correlated with worse outcomes for ICI, but not for chemotherapy, suggesting that LIPI can serve as a potentially useful tool when selecting ICI treatment, raising the hypothesis that the LIPI might be useful for identifying patients unlikely to benefit from treatment with an ICI. PMID- 29327045 TI - Serial In-Office Intralesional Steroid Injections in Airway Stenosis. AB - Importance: Endoscopic dilation is the mainstay treatment strategy for subglottic and proximal tracheal stenosis (SGS/PTS). Its major limitation is restenosis requiring repeated surgery. Intralesional steroid injection (ISI) is a promising adjunctive treatment aimed at prolonging the effects of dilation. Objective: To evaluate the association of serial in-office ISI after endoscopic dilation with surgery-free interval (SFI) in adults with SGS/PTS. Design, Setting, and Participants: A retrospective study of adults with SGS/PTS who underwent at least 2 consecutive in-office ISI at the University of Southern California, Keck School of Medicine, over a 3-year period was conducted. Exposure: Serial ISI with triamcinolone 40 mg/mL using topical anesthesia, spaced 3 to 6 weeks apart. Main Outcomes and Measures: Surgery-free interval, number of dilations, need for open airway surgery, decannulation rate, and adverse events. Patients with previous dilations and sufficient follow-up time were included in a comparative analysis of SFI before and after ISI. The Mann-Whitney U test was applied for comparisons. Results: Twenty-four patients met eligibility criteria. Mean (SD) age was 50.1 (15.1) years; 18 (75%) were female. Ten (42%) patients had idiopathic, 8 (33%) had traumatic, and 6 (25%) had rheumatologic-related SGS/PTS. Mean (SD) follow-up time was 32.3 (33.4) months. Patients underwent mean (SD) 4.08 (1.91) injections. Seventeen (71%) patients have not undergone further surgery after ISI. Mean (SD) SFI was 17.8 (12.8) months overall and was 15.7 (10.6) months for idiopathic, 13.8 (9.9) for traumatic, and 26.7 (16.9) for rheumatologic-related SGS/PTS. Twenty-one (88%) patients underwent dilation(s) prior to ISI. Among patients who fulfilled eligibility criteria for comparison of SFI before and after ISI, SFI improved from 10.1 months before, to 22.6 months after ISI (mean difference, 12.5 months; 95% CI, -2.1 to 27.2 months). Three of 6 patients (all with traumatic SGS/PTS) presenting with a tracheotomy were decannulated. No patients required open airway surgery after ISI. There were no adverse events associated with ISI. Conclusions and Relevance: Serial in-office ISI are safe and well-tolerated in adults with SGS/PTS. This technique can reduce the surgical burden on these patients and may obviate the need for future airway intervention. PMID- 29327048 TI - Retinoblastoma With Endophytic and Exophytic Features. PMID- 29327049 TI - Rosette-Shaped Cataract Due to Lightning Injury. PMID- 29327047 TI - Histopathological and Inflammatory Features of Chronically Discharging Open Mastoid Cavities: Secondary Analysis of a Randomized Clinical Trial. AB - Importance: Many patients with an open radical mastoid cavity experience therapy resistant otorrhea. Little is known about the underlying histopathological substrate of unstable cavities and the correlation with treatment failure. Objective: To study the histopathological and inflammatory features of chronically discharging open radical mastoid cavities and the influence of different treatments. Design, Setting, and Participants: This secondary analysis of a randomized clinical trial was a histopathology study of tissue samples of a cohort of 30 patients with a chronically discharging open mastoid cavity. Samples were taken from the cavities, which were treated with either honey gel or conventional eardrops in a tertiary center between 2012 and 2013. Tissue staining was performed in May 2014; final computer analysis/correlation studies were performed in June 2016. Main Outcomes and Measures: Differences of epithelial tissue coverage, infiltration of T cells (CD3, CD4, CD8) and macrophage (CD68, isoenzyme nitric oxide synthase, arginase 1) (sub-)populations, infection status, and the correlation with clinical presentation. Results: There were 30 patients (24 [80%] male; mean [SD] age, 59 [14] years). Cavities were covered with either stratified squamous (keratinized) epithelium (n = 10), respiratory columnar epithelium (n = 9), or granulation tissue (n = 10). The presence of respiratory epithelium was associated with lower treatment success (posttreatment VAS improvement of 3.1 [95% CI, 0.5 to 5.8] for discomfort and 3.6 [95% CI, 0.2 to 6.9] for otorrhea in the group with granulation tissue coverage vs 4.9 [95% CI, 0.2 to 9.6] and 5.8 [95% CI, -0.1 to 11.6] in the group with squamous [keratinized] epithelium coverage and 1.4 [95% CI, -1.2 to 4.1] and 2.5 [95% CI, 1.3 to 6.2] in the group with respiratory columnar epithelium coverage). In all 3 tissue types of cavity-covering tissues, T-cell infiltrates consisted of helper T cells and cytotoxic T cells, together with a lower number of macrophages. The immunopositivity for isoenzyme nitric oxide synthase and arginase 1 was high and not restricted to a macrophage subpopulation, but seen in various cell types. Inflammatory infiltrations varied strongly in all 3 tissue modalities. Conclusions and Relevance: Discharging open mastoid cavities can be classified histologically into 3 different types, based on their coverage: squamous epithelium, respiratory epithelium, or granulation tissue. Treatment is less successful in cavities covered with respiratory epithelium, possibly explained by the status of bacterial infection and local immunological differences. PMID- 29327050 TI - Ocular Inflammation Associated With Fibers From Eyelash Extensions. PMID- 29327051 TI - Primary Orbital Amyloidosis. PMID- 29327054 TI - Trends in Visual Health Inequalities in Childhood Through Associations of Visual Function With Sex and Social Position Across 3 UK Birth Cohorts-Reply. PMID- 29327056 TI - Neoadjuvant Systemic Therapy for Breast Cancer: Searching for More Effectively Curative Therapies. PMID- 29327055 TI - Comparing Neoadjuvant Nab-paclitaxel vs Paclitaxel Both Followed by Anthracycline Regimens in Women With ERBB2/HER2-Negative Breast Cancer-The Evaluating Treatment With Neoadjuvant Abraxane (ETNA) Trial: A Randomized Phase 3 Clinical Trial. AB - Importance: Studies of neoadjuvant chemotherapy regimens using anthracyclines followed by taxanes have reported a doubling of pathological complete remission (pCR) rates compared with anthracycline-based regimens alone. A reverse sequence did not reduce activity. Nab-paclitaxel is an albumin-bound nanoparticle of paclitaxel that allows for safe infusion without premedication, and its use led to a significantly higher rate of pCR in the GeparSepto trial. Objective: To determine whether nab-paclitaxel improves the outcomes of early and locally advanced human epidermal growth factor receptor 2 (ERBB2/HER2)-negative breast cancer compared with paclitaxel when delivered in a neoadjuvant setting. Design, Setting, and Participants: In this multicenter, open-label study, in collaboration with Grupo Espanol de Investigacion en Cancer de Mama (GEICAM) and Breast Cancer Research Center-Western Australia (BCRC-WA), patients with newly diagnosed and centrally confirmed ERBB2/HER2-negative breast cancer were recruited. Participants were randomly allocated to paclitaxel, 90 mg/m2 (349 patients), or nab-paclitaxel, 125 mg/m2 (346 patients). The 2 drugs were given on weeks 1, 2, and 3 followed by 1 week of rest for 4 cycles before 4 cycles of an anthracycline regimen per investigator choice. Main Outcomes and Measures: The primary end point was the rate of pCR, defined as absence of invasive cells in the breast and axillary nodes (ie, ypT0/is ypN0) at the time of surgery. A secondary end point was to assess tolerability and safety of the 2 regimens. Results: From May 2013 to March 2015, 814 patients were registered to the study; 695 patients met central confirmation eligibility and were randomly allocated to receive either paclitaxel (349), or nab-paclitaxel (346) (median age, 50 years; range, 25-79 years). The intention-to-treat analysis of the primary end point pCR revealed that the improved pCR rate after nab-paclitaxel (22.5%) was not statistically significant compared with paclitaxel (18.6%; odds ratio [OR], 0.77; 95% CI, 0.52-1.13; P = .19). Overall, 38 of 335 patients (11.3%) 11.3% of patients had at least 1 serious adverse event in the paclitaxel arm and 54 of 337 patient (16.0%) in the nab-paclitaxel arm. Peripheral neuropathy of grade 3 or higher occurred in 6 of 335 patients (1.8%) and in 15 of 337 (4.5%), respectively. Conclusions and Relevance: The improved rate of pCR after nab paclitaxel was not statistically significant. The multivariate analysis revealed that tumor subtype (triple-negative vs luminal B-like) was the most significant factor (OR, 4.85; 95% CI, 3.28-7.18) influencing treatment outcome. Trial Registration: clinicaltrials.gov Identifier: NCT01822314. PMID- 29327058 TI - Trends in Visual Health Inequalities in Childhood Through Associations of Visual Function With Sex and Social Position Across 3 UK Birth Cohorts. PMID- 29327057 TI - Distinguishing Uveitis Secondary to Sarcoidosis From Idiopathic Disease: Cardiac Implications. AB - Importance: Idiopathic disease is the most frequent diagnosis in a uveitis clinic. The need to distinguish sarcoidosis from idiopathic uveitis is controversial. However, cardiac involvement in sarcoidosis can be life threatening. Objective: To report a series of patients with uveitis and cardiac sarcoidosis to illustrate the importance of categorizing the causes of uveitis. Design, Setting, and Participants: This retrospective observational case series reviewed the medical records of 249 patients with uveitis who were referred to the Casey Eye Institute between July 1, 2008, and February 28, 2017. Main Outcomes and Measures: We describe patients who initially received a diagnosis of idiopathic uveitis but subsequently received a diagnosis of sarcoidosis. Clinical data, including ophthalmologic findings, were collected. We summarized the number of patients who initially presented with idiopathic uveitis, the number of patients who recived a classification of idiopathic uveitis after evaluation, the number of patients who underwent chest computed tomography or an electrocardiogram, and the number of patients with ocular sarcoidosis. Results: Of 33 patients with sarcoidosis, 21 (63.6%) were women and the mean (SD) age was 53.5 (13.8) years. Of 249 patients, the referring diagnosis was idiopathic uveitis for 179 (72%). After history, examination, and laboratory testing, 127 (51%) were still considered to have idiopathic disease. Fifty-three of the 179 patients (30%) with idiopathic disease underwent chest computed tomography scanning. A diagnosis of presumed sarcoidosis, usually on the basis of a chest computed tomography scan, was made in 19 patients (36.2%). As 14 patients (5.6%) were previously known to have sarcoidosis, 33 patients (13.3%) were evaluated with definite or presumed ocular sarcoidosis. We obtained electrocardiograms as a screen for cardiac sarcoidosis on 14 (42.4%) of these patients. Nine patients with abnormal electrocardiogram results were referred to cardiologists. Four of the 19 patients (21.1%) who were referred for idiopathic uveitis but subsequently received a diagnosis of presumed sarcoidosis were found to have episodes of ventricular tachycardia that required implantable cardiac defibrillators. Distinguishing ocular sarcoidosis from idiopathic uveitis had potentially life saving implications for these patients. Conclusions and Relevance: The present case series shows the potential utility of distinguishing sarcoidosis-associated uveitis from idiopathic uveitis. We suggest that patients older than 40 years with a history of idiopathic uveitis be evaluated with chest computed tomography and an electrocardiogram if sarcoidosis is suggested on ophthalmic examination. PMID- 29327059 TI - Immunotherapy and Symptomatic Radiation Necrosis in Patients With Brain Metastases Treated With Stereotactic Radiation. PMID- 29327060 TI - Optical Coherence Tomography Analysis of the Optic Nerve Head and Surrounding Structures in Long-Duration International Space Station Astronauts. AB - Importance: After long-duration spaceflight, morphological changes in the optic nerve head (ONH) and surrounding tissues have been reported. Objective: To develop methods to quantify ONH and surrounding tissue changes using preflight and postflight optical coherence tomographic scans of the ONH region. Design, Setting, and Participants: Two separate analyses were done on retrospective data, with the first comparing a preflight group with a control group, followed by preflight to postflight analysis. All astronaut data were collected on the same instrument and maintained by the National Aeronautics and Space Administration (NASA) Lifetime Surveillance of Astronaut Health. Control data were all collected at the University of Houston. Participants were 15 astronauts who had previously been on an approximately 6-month long-duration mission and had associated preflight and postflight ONH scans. The control group consisted of 43 individuals with no history of ocular pathology or microgravity exposure. Development of algorithms and data analysis were performed between 2012 and 2015. Main Outcomes and Measures: The optical coherence tomography data were analyzed using custom MATLAB programs (MathWorks) in which the Bruch membrane opening (BMO) was manually delineated and used as a reference for all morphological measures. The retinal pigment epithelium (RPE) position 2 mm from the center of the BMO was used to calculate the BMO height. Global and quadrant total retinal thickness and retinal nerve fiber layer (RNFL) thickness were calculated for elliptical annular regions referenced to the BMO. The standard circumpapillary circular scan was used to quantify RNFL and choroidal thickness. Results: Among 15 astronauts (mean [SD] age at preflight evaluation, 48.7 [4.0] years) in this retrospective study, the BMO was recessed in preflight astronauts compared with healthy controls and deepened after long-duration microgravity exposure (median change, -9.9 MUm; 95% CI of difference, -16.3 to 3.7 MUm; P = .03). After long-duration missions, there was an increase in total retinal thickness to 1000 MUm and RNFL to 500 MUm from the BMO. Circumpapillary RNFL thickness increased by a median of 2.9 MUm (95% CI of difference, 1.1-4.4 MUm; P < .01), and there was no change in choroidal thickness (median change, 9.3 MUm; 95% CI of difference, -12.1 to 19.6 MUm; P = .66). Conclusions and Relevance: After long-duration microgravity exposure, there are disc edema-like changes in the morphology of the ONH and surrounding tissue. The methods developed to analyze the ONH and surrounding tissue can be useful for assessing longitudinal changes and countermeasures in astronauts, as well as potentially for terrestrial disc edema causes. PMID- 29327061 TI - EGFR-TKI-Associated Interstitial Pneumonitis in Nivolumab-Treated Patients With Non-Small Cell Lung Cancer. AB - Importance: Nivolumab and epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) are now the standard-of-care therapies in non-small cell lung cancer (NSCLC). Although EGFR-TKIs are well understood and have well-defined safety profiles, our experience with immune checkpoint inhibitors is still growing, particularly regarding the use of combinations of different classes of antitumor agents, including both the concomitant and sequential use of such agents. Objective: To determine whether nivolumab increases EGFR-TKI-associated interstitial pneumonitis (IP). Design, Setting, and Participants: A database study of 20 516 participants with NSCLC in the US Food and Drug Administration Adverse Event Reporting System (FAERS) database, performed between April 2015 and March 2017. Main Outcomes and Measures: We compared the incidence of EGFR-TKI associated IP in patients receiving and not receiving nivolumab treatment. Results: The mean (SD) age of participants treated with EGFR-TKI, with and without nivolumab, was 64.4 (15.5) and 68.9 (11.8) years, respectively, and the proportion of men was 40.0% and 53.8%, respectively. Of the 20 516 participants with NSCLC, 985 cases (4.80%; 95% CI, 4.51-5.10) developed IP. Of 5777 patients treated with EGFR-TKI, 265 developed IP (4.59%; 95% CI, 4.06-5.16). Of 70 patients treated with both EGFR-TKI and nivolumab, 18 developed IP (25.7%; 95% CI, 16.0-37.6). The adjusted odds ratio for an interaction between EGFR-TKI and nivolumab was 4.31 (95% CI, 2.37-7.86; P < .001), suggesting the existence of an interaction. When we further stratified the patients by treatment with and without nivolumab, the odds ratio of EGFR-TKI-associated IP in cases with and without nivolumab treatment was 5.09 (95% CI, 2.87-9.03) and 1.22 (95% CI, 1.00 1.47), respectively. Conclusions and Relevance: We found a higher proportion of reports of IP for nivolumab in combination with EGFR-TKI vs treatment with either drug alone. Owing to the limitations of this study, the results warrant further confirmation. However, careful consideration should be given to the possibility of an increased risk of IP when EGFR-TKI is administered in combination with nivolumab, including concomitant and sequential use, and careful monitoring for IP is recommended. PMID- 29327062 TI - An Erythematous Papular Rash on the Left Flank of a 31-year-old Woman: A Quiz. PMID- 29327063 TI - Systemic Inflammation and Evidence of a Cardio-splenic Axis in Patients with Psoriasis. AB - The spleen is thought to play a role in atherosclerosis-associated immunity and cardiovascular research has indicated the existence of a cardio-splenic axis. The aim of this study was to assess splenic 18F-fluorodeoxyglucose uptake as a measure of systemic inflammation in patients with untreated psoriasis compared with historical controls assessed by positron emission tomography-computed tomography. Patients with moderate-to-severe psoriasis (n = 12, age 61.4 +/- 4.1 years, 83% men, mean Psoriasis Area Severity Index score of 14.5) and controls (n = 23, age 60.4 +/- 4.5 years, 87% men) were included in the study. Splenic inflammation was measured using the background-corrected spleen-liver-ratio (SLR) based on mean standardized uptake values. Mean +/- SD SLR was increased in patients with psoriasis compared with controls (0.94 +/- 0.11 vs. 0.82 +/- 0.08; p = 0.001). SLR was significantly associated with aortic inflammation. These results support the existence of systemic inflammation in patients with psoriasis, and provide the rationale for a mechanistic link between psoriasis driven inflammation and cardiovascular comorbidity through a spleen atherosclerotic axis. PMID- 29327064 TI - Eyelid Dermatitis as a Side Effect of Interleukin-17A Inhibitors in Psoriasis. PMID- 29327065 TI - Blood Predictive Biomarkers for Nivolumab in Advanced Melanoma. AB - Nivolumab response rate is 40% in metastatic melanoma. Few studies have evaluated pre-treatment biomarkers predictive of response. The aim of this study was to identify potential peripheral blood biomarkers associated with survival in patients with advanced melanoma treated with nivolumab. All advanced melanoma cases treated with anti-programmed cell death protein 1 (anti-PD1) over a 3-year period in the Dermato-Oncology Department, Nantes, France were identified. For each case, 9 potential blood biomarkers were identified. Bivariate and multivariate analyses, adjusted for the American Joint Committee on Cancer (AJCC) classification stage, Eastern Cooperative Oncology Group (ECOG) performance status, lactate dehydrogenase (LDH) level and failure to respond to first-line therapy, were used to test the association between biomarkers and overall survival (primary outcome) or progression-free survival (secondary outcome). Increased monocyte count, leukocyte/lymphocyte ratio and neutrophil/lymphocyte ratio were significantly associated with decreased overall survival after bivariate and multivariate analyses. Increased monocyte count was also significantly associated with decreased progression-free survival. These blood variables are easily measured and could help to predict patient response before the introduction of anti-PD1 therapy. PMID- 29327066 TI - Ramucirumab-induced Multiple Haemangiomas of the Skin: Two Case Reports. PMID- 29327068 TI - The specific effect of gallic acid on Escherichia coli biofilm formation by regulating pgaABCD genes expression. AB - Escherichia coli (E. coli) is associated with an array of health-threatening contaminations, some of which are related to biofilm states. The pgaABCD-encoded poly-beta-1,6-N-acetyl-D-glucosamine (PGA) polymer plays an important role in biofilm formation. This study was conducted to determine the inhibitory effect of gallic acid (GA) against E. coli biofilm formation. Minimal inhibitory concentration (MIC) and minimal bactericidal concentration (MBC) values of GA against planktonic E. coli were 0.5 and 4 mg/mL, and minimal biofilm inhibitory concentration and minimal biofilm eradication concentration values of GA against E. coli in biofilms were 2 and 8 mg/mL, respectively. Quantitative crystal violet staining of biofilms and ESEM images clearly indicate that GA effectively, dose dependently inhibited biofilm formation. CFU counting and confocal laser scanning microscopy measurements showed that GA significantly reduced viable bacteria in the biofilm. The contents of polysaccharide slime, protein, and DNA in the E. coli biofilm also decreased. qRT-PCR data showed that at the sub-MIC level of GA (0.25 mg/mL) and expression of pgaABC genes was downregulated, while pgaD gene expression was upregulated. The sub-MBC level of GA (2 mg/mL) significantly suppressed the pgaABCD genes. Our results altogether demonstrate that GA inhibited viable bacteria and E. coli biofilm formation, marking a novel approach to the prevention and treatment of biofilm-related infections in the food industry. PMID- 29327067 TI - Overexpression of Nogo receptor 3 (NgR3) correlates with poor prognosis and contributes to the migration of epithelial cells of nasopharyngeal carcinoma patients. AB - : Lymph node metastasis (N classification) is one of the most important prognostic factors of nasopharyngeal carcinoma (NPC), and nerve involvement is associated with the transition of the N category in NPC patients. Although the nervous system has been reported to participate in many types of cancer progression, its functions in NPC progression remains unknown. Through analysis of gene profiling data, we demonstrate an enrichment of genes associated with neuronal development and differentiation in NPC tissues and cell lines. Among these genes, Nogo receptor 3 (NgR3), which was originally identified in the nervous system and plays a role in nerve development and regeneration, was inappropriately overexpressed in NPC cells and tissues. Immunohistochemical analysis demonstrated that the overexpression of NgR3 was correlated with poor prognosis in NPC patients. Overexpression of NgR3 promoted, and knocking down NgR3 inhibited, NPC cell migration and invasion in vitro and metastasis in vivo. The ability of NgR3 to promote cell migration was triggered by the downregulation of E-cadherin and enhanced cytoskeletal rearrangement and cell polarity, which were correlated with the activation of focal adhesion kinase (FAK). Collectively, NgR3 is a novel indicator of poor outcomes in NPC patients and plays an important role in driving the progression of NPC. These results suggest a potential link between the nervous system and NPC progression. KEY MESSAGES: Genes involved in the neuronal biological process are enriched in nasopharyngeal carcinoma. Overexpression of NgR3 correlates with poor prognosis of nasopharyngeal carcinoma. NgR3 promotes NPC cell migration by downregulating E-cadherin. NgR3 promotes NPC cell polarity and enhances the formation of NPC cell pseudopodia by activating FAK/Src pathway. PMID- 29327069 TI - [Tarsal tunnel syndrome after hip operation]. PMID- 29327070 TI - [Open repair of gluteus medius and minimus tendons tears with double-row technique : Clinical and radiological results]. AB - BACKGROUND: Operative refixation is a new therapeutic option in cases of failed conservative treatment for trochanteric pain syndrome (TPS) and lesions of the hip abductors in magnetic resonance imaging (MRI). OBJECTIVE: Evaluation of the clinical and radiological results after open gluteus medius and minimus tendon reconstruction with a double-row technique was carried out. MATERIAL AND METHODS: Patients with failed conservative treatment for TPS and confirmed lesions of the hip abductors in MRI were treated by open hip abductor tendon reconstruction with a double-row technique. The patients were evaluated preoperatively and postoperatively (minimum follow-up 12 months) using the modified Harris hip score (mHHS) and a subjective score (subjective hip value, SHV). Preoperative and postoperative MRI evaluation included measurement of hip abductor muscle diameter and cross-sectional area as well as fatty degeneration. RESULTS: In this study 12 consecutive cases of open reconstruction of the hip abductor tendons were included. There was a significant improvement in the mHHS. In one case the patient showed an atraumatic rupture in the proximal anchor row. The MRI showed a significant improvement in muscle diameter and cross-sectional area for the gluteus medius muscle of the affected and the contralateral side, while the degree of fatty degeneration did not improve. The fatty degeneration showed a significant correlation with the postoperative results in the mHHS and the SHV. CONCLUSION: Operative reconstruction of lesions in the hip abductor tendons is a therapy option with significant improvement of patient satisfaction and functional scores as well as muscle diameter and cross-sectional area for the gluteus medius. The degree of fatty degeneration and possible differential diagnoses need to be taken into consideration. PMID- 29327072 TI - Naproxen Is Transformed Via Acetogenesis and Syntrophic Acetate Oxidation by a Methanogenic Wastewater Consortium. AB - Over-the-counter pharmaceutical compounds can serve as microbial substrates in wastewater treatment processes as well as in the environment. The metabolic pathways and intermediates produced during their degradation, however, are poorly understood. In this study, we investigate an anaerobic wastewater community that metabolizes naproxen via demethylation. Enriched cultures, established from anaerobic digester inocula receiving naproxen as the sole carbon source, transformed naproxen to 6-O-desmethylnaproxen (DMN) within 22 days. Continual enrichment and culture transfer resulted in consistent demethylation of naproxen with no loss of DMN observed. Methane was generated at 0.83 mmol per 1 mmol transformed naproxen. In addition to naproxen, the consortium readily demethylated syringic acid and vanillic acid. DNA analysis revealed a community of acetogenic bacteria and syntrophic acetate oxidizing archaea. Combined with the biotransformation data, this suggests the enriched consortium performs aromatic O-demethylation through a syntrophic relationship between specific acetogens, acetate oxidizers, and methanogens. The proposed model of carbon transfer through the anaerobic food web highlights the significance of linked community interactions in the anaerobic transformation of aromatic O-methyl compounds such as naproxen. PMID- 29327074 TI - Liver Tract Sealing with Hep-PlugTM Sealing System Improves Haemorrhage Control for Patients Undergoing Transhepatic Procedures. PMID- 29327073 TI - Azospirillum brasilense Increases CO2 Fixation on Microalgae Scenedesmus obliquus, Chlorella vulgaris, and Chlamydomonas reinhardtii Cultured on High CO2 Concentrations. AB - Mutualism interactions of microalgae with other microorganisms are widely used in several biotechnological processes since symbiotic interaction improves biotechnological capabilities of the microorganisms involved. The interaction of the bacterium Azospirillum brasilense was assessed with three microalgae genus, Scenedesmus, Chlorella, and Chlamydomonas, during CO2 fixation under high CO2 concentrations. The results in this study have demonstrated that A. brasilense maintained a mutualistic interaction with the three microalgae assessed, supported by the metabolic exchange of indole-3-acetic acid (IAA) and tryptophan (Trp), respectively. Besides, CO2 fixation increased, as well as growth and cell compound accumulation, mainly carbohydrates, in each microalgae evaluated, interacting with the bacterium. Overall, these results propose the mutualism interaction of A. brasilense with microalgae for improving biotechnological processes based on microalgae as CO2 capture and their bio-refinery capacity. PMID- 29327071 TI - Diseases of complement dysregulation-an overview. AB - Atypical hemolytic uremic syndrome (aHUS), C3 glomerulopathy (C3G), and paroxysmal nocturnal hemoglobinuria (PNH) are prototypical disorders of complement dysregulation. Although complement overactivation is common to all, cell surface alternative pathway dysregulation (aHUS), fluid phase alternative pathway dysregulation (C3G), or terminal pathway dysregulation (PNH) predominates resulting in the very different phenotypes seen in these diseases. The mechanism underlying the dysregulation also varies with predominant acquired autoimmune (C3G), somatic mutations (PNH), or inherited germline mutations (aHUS) predisposing to disease. Eculizumab has revolutionized the treatment of PNH and aHUS although has been less successful in C3G. With the next generation of complement therapeutic in late stage development, these archetypal complement diseases will provide the initial targets. PMID- 29327075 TI - Phase II Study of Sorafenib Combined with Concurrent Hepatic Arterial Infusion of Oxaliplatin, 5-Fluorouracil and Leucovorin for Unresectable Hepatocellular Carcinoma with Major Portal Vein Thrombosis. AB - BACKGROUND: Sorafenib is recommended for the first-line treatment of advanced hepatocellular carcinoma (HCC). However, the median progression-free survival (PFS) of patients with HCC and major portal vein tumor thrombosis treated with sorafenib monotherapy is no more than 3 months. A prospective single-arm phase II study was conducted to determine whether adding hepatic arterial infusion chemotherapy of oxaliplatin, 5-fluorouracil and leucovorin to sorafenib could improve on these results. METHODS: Thirty five patients were treated with sorafenib 400 mg orally twice a day, oxaliplatin 85 mg/m2 HAI on day 1, leucovorin 400 mg/m2 HAI on days 1, and 5-fluorouracil 2800 mg/m2 on days 1 and 2, repeated every 21 days. The primary end point was the 3-month PFS rate. RESULTS: The 3-, 6-, and 12-month PFS rates were 82.9, 51.4, and 22.9%, respectively. The median PFS and overall survival was 6.7 and 13.2 months, respectively. The objective response rate was 40%, and the disease control rate was 77.1% by RECIST criteria. Five (14.3%) patients achieved conversion to complete resection after the study treatment, and one of them experienced a pathological complete response. Treatment-related deaths did not occur. Grade 3-4 toxicities consisted of increases in aspartate aminotransferase (31.4%), hand foot syndrome (17.1%), thrombocytopenia (14.3%), and neutropenia (8.6%). CONCLUSIONS: The combination treatment met the pre-specified end point of a 3 month progression free survival rate exceeding 65% and was clinical tolerable. The merits of this approach need to be established with a phase III trial. Clinical trial number http://ClinicalTrials.gov (No. NCT02981498). PMID- 29327076 TI - Arms Down Cone Beam CT Hepatic Angiography Performance Assessment: Vascular Imaging Quality and Imaging Artifacts. AB - INTRODUCTION: The practice of positioning patients' arms above the head during catheter-injected hepatic arterial phase cone beam CT (A-CBCT) imaging has been inherited from standard CT imaging due to image quality concerns, but interrupts workflow and extends procedure time. We sought to assess A-CBCT image quality and artifacts with arms extended above the head versus down by the side. METHODS: We performed an IRB approved retrospective evaluation of reformatted and 3D-volume rendered images from 91 consecutive A-CBCTs (43 arms up, 48 arms down) acquired during hepatic tumor arterial embolization procedures. Two interventional radiologists reviewed all A-CBCT imaging and assigned vessel visualization scores (VVS) from 1 to 5, ranging from non-diagnostic to optimal visualization. Streak artifacts across axial images were rated from 1 to 3 based on resulting image quality (none to significant). Presence of respiratory or cardiac motion during acquisition, body mass index and radiation dose area product (DAP) were also recorded and analyzed. Univariate and multivariate analyses were used to assess the impact of arm position on VVS and imaging artifacts. RESULTS: VVS were not significantly associated with arm position during A-CBCT imaging. One reader reported more streak artifacts across axial images in the arms down group (p = 0.005). DAP was not statistically different between the groups (23.9 Gy cm2 [6.1 73.4] arms up, 26.1 Gy cm2 [4.2-102.6] arms down, p = 0.54). CONCLUSION: A-CBCT angiography performed with the arms above the head is not superior for clinically relevant hepatic vascular visualization compared to imaging performed with the arms by the patient's side. PMID- 29327077 TI - Combined PD-1 and JAK1/2 inhibition in refractory primary mediastinal B-cell lymphoma. PMID- 29327080 TI - Editorial Board of Biological Cybernetics: Advances in Computational Neuroscience. PMID- 29327079 TI - Endoscopic third ventriculostomy for hydrocephalus in osteopetrosis: a case report and review of the literature. AB - INTRODUCTION: There are very few reports in the literature associating in hydrocephalus in osteopetrosis. As a complication of shunt procedure, there are two reports on shunt malfunction due to osseous overgrowth at the burr hole in patients with osteopetrosis. We herein report a case of osteopetrosis with hydrocephalus that was successfully treated with endoscopic third ventriculostomy (ETV). CASE REPORT: At 5 months of age, a male patient presented with developmental delay. Head computed tomography (CT) demonstrated triventricular hydrocephalus with a cerebellar tonsillar herniation. At 7 months of age, he underwent suboccipital decompression with decompression of the foramen magnum. The hydrocephalus did not improve postoperatively, and the patient was transferred to our hospital. At 12 months of age, the hydrocephalus was successfully treated with ETV. The postoperative period was uneventful. Postoperative CT demonstrated an improvement in the ventricle size. CONCLUSIONS: The etiology of hydrocephalus in osteopetrosis is not completely understood; however, there have been several reports in which ETV was effective. ETV should be considered the treatment of choice for hydrocephalus in osteopetrosis, as it avoids the characteristic shunt complications that can occur in patients with osteopetrosis. PMID- 29327081 TI - Neutrophils in viral infection. AB - Neutrophils are the first wave of recruited immune cells to sites of injury or infection and are crucial players in controlling bacterial and fungal infections. Although the role of neutrophils during bacterial or fungal infections is well understood, their impact on antiviral immunity is much less studied. Furthermore, neutrophil function in tumor pathogenesis and cancer treatment has recently received much attention, particularly within the context of oncolytic virus infection where neutrophils produce antitumor cytokines and enhance oncolysis. In this review, multiple functions of neutrophils in viral infections and immunity are discussed. Understanding the role of neutrophils during viral infection may provide insight into the pathogenesis of virus infections and the outcome of virus-based therapies. PMID- 29327082 TI - Evaluation of committed and primitive cord blood progenitors after expansion on adipose stromal cells. AB - Umbilical cord blood mononuclear fraction is a valuable source of hematopoietic stem and progenitor cells (CB HSPCs). The rarity of this population is a serious limitation of its application in cell therapy. Ex vivo expansion enables to significantly amplify the number of hematopoietic precursors of different commitment. Here, we expand CB MNCs in co-culture with human adipose tissue derived stromal cells (ASCs) to enrich HSPCs and describe phenotypic features of newly formed hematopoietic populations. The CD34+-HSPCs demonstrated 6-fold enrichment with 9000 CFUs per 50 * 103 HSPCs on average. A part of the floating HSPCs were bearing lineage markers, while others were primitive precursors (CD133 /CD34+). Among ASC-associated HSPCs, two subsets of cord blood-borne cells were revealed: SD90+/SD45- and SD90+/SD45+. The proportion of CD3+/CD8+ and NK-T as well as CD25+ and HLA-DR+ T cells among SD90+/SD45- cells was significantly higher compared to MNCs and floating HSPCs. More than 80% of CD45+/SD90+ HSPCs were identified as late primitive precursors (CD133-/CD34+). Thus, CB MNC expansion in the presence of ASCs provides the generation of both lineage committed lymphoid progenitors and CD34+/CD133- primitive HSPCs. Substantially enriched with primitive precursors, ASC-associated HSPCs could be considered as a perspective tool for a long-term restoration of hematopoiesis in various hematologic disorders. PMID- 29327083 TI - R-loops: targets for nuclease cleavage and repeat instability. AB - R-loops form when transcribed RNA remains bound to its DNA template to form a stable RNA:DNA hybrid. Stable R-loops form when the RNA is purine-rich, and are further stabilized by DNA secondary structures on the non-template strand. Interestingly, many expandable and disease-causing repeat sequences form stable R loops, and R-loops can contribute to repeat instability. Repeat expansions are responsible for multiple neurodegenerative diseases, including Huntington's disease, myotonic dystrophy, and several types of ataxias. Recently, it was found that R-loops at an expanded CAG/CTG repeat tract cause DNA breaks as well as repeat instability (Su and Freudenreich, Proc Natl Acad Sci USA 114, E8392-E8401, 2017). Two factors were identified as causing R-loop-dependent breaks at CAG/CTG tracts: deamination of cytosines and the MutLgamma (Mlh1-Mlh3) endonuclease, defining two new mechanisms for how R-loops can generate DNA breaks (Su and Freudenreich, Proc Natl Acad Sci USA 114, E8392-E8401, 2017). Following R-loop dependent nicking, base excision repair resulted in repeat instability. These results have implications for human repeat expansion diseases and provide a paradigm for how RNA:DNA hybrids can cause genome instability at structure forming DNA sequences. This perspective summarizes mechanisms of R-loop-induced fragility at G-rich repeats and new links between DNA breaks and repeat instability. PMID- 29327078 TI - The role of the thioredoxin/thioredoxin reductase system in the metabolic syndrome: towards a possible prognostic marker? AB - Mammalian thioredoxin reductase (TrxR) is a selenoprotein with three existing isoenzymes (TrxR1, TrxR2, and TrxR3), which is found primarily intracellularly but also in extracellular fluids. The main substrate thioredoxin (Trx) is similarly found (as Trx1 and Trx2) in various intracellular compartments, in blood plasma, and is the cell's major disulfide reductase. Thioredoxin reductase is necessary as a NADPH-dependent reducing agent in biochemical reactions involving Trx. Genetic and environmental factors like selenium status influence the activity of TrxR. Research shows that the Trx/TrxR system plays a significant role in the physiology of the adipose tissue, in carbohydrate metabolism, insulin production and sensitivity, blood pressure regulation, inflammation, chemotactic activity of macrophages, and atherogenesis. Based on recent research, it has been reported that the modulation of the Trx/TrxR system may be considered as a new target in the management of the metabolic syndrome, insulin resistance, and type 2 diabetes, as well as in the treatment of hypertension and atherosclerosis. In this review evidence about a possible role of this system as a marker of the metabolic syndrome is reported. PMID- 29327084 TI - BACE1 inhibition more effectively suppresses initiation than progression of beta amyloid pathology. AB - BACE1 is the rate-limiting protease in the production of synaptotoxic beta amyloid (Abeta) species and hence one of the prime drug targets for potential therapy of Alzheimer's disease (AD). However, so far pharmacological BACE1 inhibition failed to rescue the cognitive decline in mild-to-moderate AD patients, which indicates that treatment at the symptomatic stage might be too late. In the current study, chronic in vivo two-photon microscopy was performed in a transgenic AD model to monitor the impact of pharmacological BACE1 inhibition on early beta-amyloid pathology. The longitudinal approach allowed to assess the kinetics of individual plaques and associated presynaptic pathology, before and throughout treatment. BACE1 inhibition could not halt but slow down progressive beta-amyloid deposition and associated synaptic pathology. Notably, the data revealed that the initial process of plaque formation, rather than the subsequent phase of gradual plaque growth, is most sensitive to BACE1 inhibition. This finding of particular susceptibility of plaque formation has profound implications to achieve optimal therapeutic efficacy for the prospective treatment of AD. PMID- 29327085 TI - Acceptance and commitment therapy for symptom interference in metastatic breast cancer patients: a pilot randomized trial. AB - PURPOSE: Breast cancer is the leading cause of cancer mortality in women worldwide. With medical advances, metastatic breast cancer (MBC) patients often live for years with many symptoms that interfere with activities. However, there is a paucity of efficacious interventions to address symptom-related suffering and functional interference. Thus, this study examined the feasibility and preliminary efficacy of telephone-based acceptance and commitment therapy (ACT) for symptom interference with functioning in MBC patients. METHODS: Symptomatic MBC patients (N = 47) were randomly assigned to six telephone sessions of ACT or six telephone sessions of education/support. Patients completed measures of symptom interference and measures assessing the severity of pain, fatigue, sleep disturbance, depressive symptoms, and anxiety. RESULTS: The eligibility screening rate (64%) and high retention (83% at 8 weeks post-baseline) demonstrated feasibility. When examining within-group change, ACT participants showed decreases in symptom interference (i.e., fatigue interference and sleep-related impairment; Cohen's d range = - 0.23 to - 0.31) at 8 and 12 weeks post-baseline, whereas education/support participants showed minimal change in these outcomes (d range = - 0.03 to 0.07). Additionally, at 12 weeks post-baseline, ACT participants showed moderate decreases in fatigue and sleep disturbance (both ds = - 0.43), whereas education/support participants showed small decreases in these outcomes (ds = - 0.24 and - 0.18 for fatigue and sleep disturbance, respectively). Both the ACT and education/support groups showed reductions in depressive symptoms (ds = - 0.27 and - 0.28) at 12 weeks post-baseline. Group differences in all outcomes were not statistically significant. CONCLUSIONS: ACT shows feasibility and promise in improving fatigue and sleep-related outcomes in MBC patients and warrants further investigation. PMID- 29327086 TI - Frequency of cerebral infarction after pulmonary resection: a multicenter, retrospective study in Japan. PMID- 29327087 TI - Use of Portable Digital Devices to Analyze Autonomic Stress Response in Psychology Objective Structured Clinical Examination. AB - The aim of the present study was to explore changes in the autonomic stress response of Psychology students in a Psychology Objective Structured Clinical Examination (OSCE) and their relationship with OSCE performance. Variables of autonomic modulation by the analysis of heart rate variability in temporal, frequency and non-linear domains, subjective perception of distress strait and academic performance were measured before and after the two different evaluations that composed the OSCE. A psychology objective structured clinical examination composed by two different evaluation scenarios produced a large anxiety anticipatory response, a habituation response in the first of the evaluation scenarios and a in the entire evaluation, and a no habituation response in the second evaluation scenario. Autonomic modulation parameters do not correlate with academic performance of students. PMID- 29327088 TI - Amplification of pressure waves in laser-assisted endodontics with synchronized delivery of Er:YAG laser pulses. AB - When attempting to clean surfaces of dental root canals with laser-induced cavitation bubbles, the resulting cavitation oscillations are significantly prolonged due to friction on the cavity walls and other factors. Consequently, the collapses are less intense and the shock waves that are usually emitted following a bubble's collapse are diminished or not present at all. A new technique of synchronized laser-pulse delivery intended to enhance the emission of shock waves from collapsed bubbles in fluid-filled endodontic canals is reported. A laser beam deflection probe, a high-speed camera, and shadow photography were used to characterize the induced photoacoustic phenomena during synchronized delivery of Er:YAG laser pulses in a confined volume of water. A shock wave enhancing technique was employed which consists of delivering a second laser pulse at a delay with regard to the first cavitation bubble-forming laser pulse. Influence of the delay between the first and second laser pulses on the generation of pressure and shock waves during the first bubble's collapse was measured for different laser pulse energies and cavity volumes. Results show that the optimal delay between the two laser pulses is strongly correlated with the cavitation bubble's oscillation period. Under optimal synchronization conditions, the growth of the second cavitation bubble was observed to accelerate the collapse of the first cavitation bubble, leading to a violent collapse, during which shock waves are emitted. Additionally, shock waves created by the accelerated collapse of the primary cavitation bubble and as well of the accompanying smaller secondary bubbles near the cavity walls were observed. The reported phenomena may have applications in improved laser cleaning of surfaces during laser-assisted dental root canal treatments. PMID- 29327089 TI - Comparative efficacy of Er,Cr:YSGG and Er:YAG lasers for etching of composite for orthodontic bracket bonding. AB - Several techniques have been proposed to obtain a durable bond, and the efficacy of these techniques is assessed by measuring parameters such as bond strength. Laser has provided a bond strength as high as that of acid etching in vitro and has simpler use with shorter clinical time compared to acid etching. This study aimed to compare the efficacy of Er:YAG and Er,Cr:YSGG lasers for etching and bonding of composite to orthodontic brackets. No previous study has evaluated the effect of these particular types of laser. A total of 70 composite blocks were randomly divided into five groups (n = 14): group 1, etching with phosphoric acid for 20 s; group 2, Er:YAG laser irradiation with 2 W power for 10 s; group 3, Er:YAG laser with 3 W power for 10 s; group 4, Er,Cr:YSGG laser with 2 W power for 10 s; group 5, Er,Cr:YSGG laser with 3 W power for 10 s. Metal brackets were then bonded to composites, and after 5000 thermal cycles, they were subjected to shear bond strength test in a universal testing machine after 24 h of water storage. One sample of each group was evaluated under a scanning electron microscope (SEM) to assess changes in composite surface after etching. The adhesive remnant index (ARI) was calculated under a stereomicroscope. Data were statistically analyzed. The mean and standard deviation of shear bond strength were 18.65 +/- 3.36, 19.68 +/- 5.34, 21.31 +/- 4.03, 17.38 +/- 6.94, and 16.45 +/ 4.26 MPa in groups 1-5, respectively. The ARI scores showed that the bond failure mode in all groups was mainly mixed. The groups were not significantly different in terms of shear bond strength. Er:YAG and Er,Cr:YSGG lasers with the mentioned parameters yield optimal shear bond strength and can be used as an alternative to acid etching for bracket bond to composite. PMID- 29327090 TI - Alcohol Use and Unprotected Sex Among HIV-Infected Ugandan Adults: Findings from an Event-Level Study. AB - While alcohol is a known risk factor for HIV infection in sub-Saharan Africa (SSA), studies designed to investigate the temporal relationship between alcohol use and unprotected sex are lacking. The purpose of this study was to determine whether alcohol used at the time of a sexual event is associated with unprotected sex at that same event. Data for this study were collected as part of two longitudinal studies of HIV-infected Ugandan adults. A structured questionnaire was administered at regularly scheduled cohort study visits in order to assess the circumstances (e.g., alcohol use, partner type) of the most recent sexual event (MRSE). Generalized estimating equation logistic regression models were used to examine the association between alcohol use (by the participant, the sexual partner, or both the participant and the partner) and the odds of unprotected sex at the sexual event while controlling for participant gender, age, months since HIV diagnosis, unhealthy alcohol use in the prior 3 months, partner type, and HIV status of partner. A total of 627 sexually active participants (57% women) reported 1817 sexual events. Of these events, 19% involved alcohol use and 53% were unprotected. Alcohol use by one's sexual partner (aOR 1.70; 95% CI 1.14, 2.54) or by both partners (aOR 1.78; 95% CI 1.07, 2.98) during the MRSE significantly increased the odds of unprotected sex at that same event. These results add to the growing event-level literature in SSA and support a temporal association between alcohol used prior to a sexual event and subsequent unprotected sex. PMID- 29327091 TI - Temporal Fluctuations in Behavior, Perceived HIV Risk, and Willingness to Use Pre Exposure Prophylaxis (PrEP). AB - Individual perceptions of HIV risk influence willingness to use pre-exposure prophylaxis (PrEP) for HIV prevention. Among men who have sex with men (MSM) and male sex workers (MSWs), temporal or episodic changes in risk behavior may influence perceived risk and PrEP acceptability over time. We investigated fluctuations in perceived HIV risk and PrEP acceptability, comparing MSWs against MSM who do not engage in sex work. We conducted 8 focus groups (n = 38) and 56 individual interviews among MSM and MSWs in Providence, RI. Perceived HIV risk shaped willingness to use PrEP among both MSWs and MSM who did not engage in sex work, and risk perceptions changed over time depending on behavior. For MSWs, perceived risk cycled according to patterns of substance use and sex work activity. These cycles yielded an "access-interest paradox": an inverse relationship between willingness to use and ability to access PrEP. MSM who did not engage in sex work also reported temporal shifts in risk behavior, perceived risk, and willingness to use PrEP, but changes were unrelated to access. MSM attributed fluctuations to seasonal changes, vacations, partnerships, behavioral "phases," and episodic alcohol or drug use. Efforts to implement PrEP among MSM and street-based MSWs should address temporal changes in willingness to use PrEP, which are linked to perceived risk. Among MSWs, confronting the access-interest paradox may require intensive outreach during high-risk times and efforts to address low perceived risk during times of reduced sex work. PMID- 29327092 TI - Mesoporous Nickel Oxide (NiO) Nanopetals for Ultrasensitive Glucose Sensing. AB - Glucose sensing properties of mesoporous well-aligned, dense nickel oxide (NiO) nanostructures (NSs) in nanopetals (NPs) shape grown hydrothermally on the FTO coated glass substrate has been demonstrated. The structural study based investigations of NiO-NPs has been carried out by X-ray diffraction (XRD), electron and atomic force microscopies, energy dispersive X-ray (EDX), and X-ray photospectroscopy (XPS). Brunauer-Emmett-Teller (BET) measurements, employed for surface analysis, suggest NiO's suitability for surface activity based glucose sensing applications. The glucose sensor, which immobilized glucose on NiO NPs@FTO electrode, shows detection of wide range of glucose concentrations with good linearity and high sensitivity of 3.9 MUA/MUM/cm2 at 0.5 V operating potential. Detection limit of as low as 1 MUMU and a fast response time of less than 1 s was observed. The glucose sensor electrode possesses good anti interference ability, stability, repeatability & reproducibility and shows inert behavior toward ascorbic acid (AA), uric acid (UA) and dopamine acid (DA) making it a perfect non-enzymatic glucose sensor. PMID- 29327093 TI - MiR-181 family-specific behavior in different cancers: a meta-analysis view. AB - The involvement of microRNAs in malignant transformation and cancer progression was previously grounded. The observations made by multiple published studies led to the conclusion that some of these small sequences could be eventually used as biomarkers for diagnosis/prognosis. This meta-analysis investigated whether microRNA-181 family members could predict the outcome of patients carrying different types of cancer. We searched the PubMed and Embase databases for studies evaluating the expression levels of miR-181a/b/c/d in patients with cancer, selecting the publications that assessed the relation between low and high levels of one of these four microRNAs and patients' outcome. Hazard ratios (HRs) or risk ratios (RRs) were extracted from the studies, and random-effect model was performed to investigate the role of miR-181 in the outcome of these patients. The meta-analysis comprised 26 studies including 2653 cancer patients from 6 countries. The results showed significant association between the expression of miR-181 family members and colorectal cancer. Considering the heterogeneity of the pathologies, the analysis, including all types of cancer and the expression of all the miR-181 family members together, showed no association with distinct outcome (HR = 1.099, p = 0.435). When the analysis was performed on each microRNA separately, the expression of miR-181c was significantly associated with the outcome of patients with cancer (HR = 2.356, p = 0.011) and miR-181a expression levels significantly correlated with survival in patients with non small-cell lung cancer (HR = 0.177, p < 0.05). This meta-analysis revealed evidence regarding the involvement of miR-181 family members in the outcome of patients with some types of cancer, according to their expression level. PMID- 29327094 TI - Association between secondhand smoke exposure and quality of life in pregnant women and postpartum women and the consequences on the newborns. AB - PURPOSE: Secondhand smoke (SHS) exposure is prevalent and could damage the health of non-smokers, especially that of pregnant women (PW) and postpartum women (PPW). Nevertheless, there is no study on the impact of SHS during pregnancy on the quality of life (QOL) of PW and PPW. The study's purpose is to study the effects of exposure to SHS on the QOL of pregnant and postpartum women and health of the newborns. METHODS: Self-reports and urine tests for cotinine were used to obtain data on SSH exposure in 296 women in the second trimester of pregnancy and 106 women in the postpartum period at the Obstetrics & Gynecology Clinic located in a university hospital. The WHOQOL-BREF-THAI and the Edinburgh Postnatal Depression Scale were used to assess QOL and postpartum depression, respectively. RESULTS: Of the participants, 88.2% of PW and 62.3% of PPW reported exposure to SHS during pregnancy. Of the PPW, 5.7% had postpartum depression. PW with good QOL were less likely to have family member who smoked (p = 0.007) or to be exposed to SHS in public parks (p = 0.037) or in the household or workplace (p = 0.011). Likewise, PPW with good QOL in the psychological domain were less likely to be exposed to SHS during pregnancy, as shown in both verbal report (p = 0.010) and objective measure of urine cotinine test (p = 0.034). In addition, maternal exposure to SHS during pregnancy is associated with low birth weight and other health problems in the newborns (p < 0.05). CONCLUSIONS: Exposure to SHS during pregnancy is associated with a lower QOL and a poorer health condition in the newborns. PMID- 29327095 TI - Longitudinal Links Between Gambling Participation and Academic Performance in Youth: A Test of Four Models. AB - Gambling participation and low academic performance are related during adolescence, but the causal mechanisms underlying this link are unclear. It is possible that gambling participation impairs academic performance. Alternatively, the link between gambling participation and low academic performance could be explained by common underlying risk factors such as impulsivity and socio-family adversity. It could also be explained by other current correlated problem behaviors such as substance use. The goal of the present study was to examine whether concurrent and longitudinal links between gambling participation and low academic performance exist from age 14 to age 17 years, net of common antecedent factors and current substance use. A convenience sample of 766 adolescents (50.6% males) from a longitudinal twin sample participated in the study. Analyses revealed significant, albeit modest, concurrent links at both ages between gambling participation and academic performance. There was also a longitudinal link between gambling participation at age 14 and academic performance at age 17, which persisted after controlling for age 12 impulsivity and socio-family adversity as well as current substance use. Gambling participation predicts a decrease in academic performance during adolescence, net of concurrent and antecedent personal and familial risk factors. PMID- 29327096 TI - [Focused ultrasound ablation as tremor treatment]. AB - BACKGROUND: The development of high-intensity magnetic resonance imaging (MRI) guided focused ultrasound (MRIgFUS) ablation has widened the spectrum of interventional techniques for stereotactic functional neurosurgery of lesions. This has resulted in novel incisionless intervention approaches for the therapy of tremor disorders. The safety and efficacy is documented by recent study data. OBJECTIVES: This article encompasses a description of the technological basis and typical course of MRIgFUS interventions, a comparison to alternative open or incisionless surgical techniques as well as a review of the current evidence base for MRIgFUS ablation in the context of lesional interventions to treat tremor. MATERIAL AND METHODS: Narrative literature review and comparison. RESULTS: Depending on the surgical target and tremor etiology published trials of MRIgFUS ablation report a reduction of tremor intensity of up to 80% after 6-12 months follow-up without the disadvantages of open brain surgery. CONCLUSION: The MRIgFUS functional neurosurgery is conducted only at a limited number of treatment sites. First data on lesions of the thalamic ventral intermediary nucleus (V.im.) as well as subthalamic fiber tracts have been published. These results indicate an effective and safe treatment of tremor disorders by MRIgFUS ablation. Incisionless lesional surgery using MRIgFUS is a significant addition to the interventional armamentarium for functional stereotactic neurosurgery and a potentially valuable alternative to established interventional therapy options for tremor disorders. PMID- 29327097 TI - [Clinical and cognitive aspects of functional (psychogenic) tremor]. AB - Functional (psychogenic) tremor is the most common functional movement disorder. Characteristic clinical features, so called red flags, can help to make the clinical distinction of this type from other tremor disorders. The most common features include the variability of frequency and amplitude. Clinical examination should include different types of distraction including motor or cognitive tasks or testing the influence of suggestibility on tremor amplitude, frequency or direction. Patients often report sudden onset and remissions that may last for months or even years. In some cases, the tremor is only present in highly specific situations. Although functional tremor shares characteristics with voluntary actions, patients experience their abnormal movements as involuntary. Recent experimental approaches have revealed an impairment in sense of agency. The diagnosis can be supported by neurophysiological measurements including accelerometry, which achieved a sensitivity of 89.5% and a specificity of 95.9% in a validated test battery, thus providing a useful additional diagnostic tool. Psychotherapeutic treatment is indicated in patients with and without evident psychological symptoms. A specific physiotherapeutic approach for functional tremor is re-trainment. PMID- 29327098 TI - [Rare tremor syndromes]. AB - BACKGROUND: There is a group of uncommon sporadic tremor syndromes, which are only partially taken into account in the current classification of tremor. Their knowledge is of diagnostic and therapeutic relevance and they should be considered in the differential diagnosis of frequent tremor syndromes. OBJECTIVE: Differential diagnostics and treatment of uncommon tremor syndromes. METHOD: Literature search (PubMed, Google Scholar). RESULTS: Holmes tremor, myorhythmia, palatal tremor, limb-shaking transient ischemic attack (TIA), tardive tremor, neuropathic tremor, tremor induced by peripheral trauma and orthostatic tremor syndrome are described. CONCLUSION: Uncommon sporadic tremor syndromes are mainly symptomatic with various underlying neurological or systemic pathologies. Their recognition accelerates the diagnostic process and has therapeutic relevance. PMID- 29327099 TI - [Genetics of tremor]. AB - BACKGROUND: Tremor is a symptom of many diseases and can constitute a disease of its own: essential tremor. OBJECTIVE: The genetics of essential tremor and differential diagnosis of monogenic diseases with the symptom tremor. MATERIAL AND METHODS: Literature search and search of clinical genetics databases, e.g. OMIM, GeneReviews, MDSGene and the German Neurological Society (DGN) guidelines. RESULTS: The genetics of essential tremor remain unresolved in spite of large, adequately powered studies. Tremor is a symptom of differential diagnostic value in many movement disorders. A slight tremor might have been missed or not reported in many descriptions of movement disorders. CONCLUSION: Progress in the genetics of essential tremor probably requires a more detailed phenotyping allowing stratification into phenotypically defined subgroups. Tremor should always be included in the examination and description of movement disorders even if tremor is not a cardinal symptom. Tremor might be helpful in the differential diagnosis of hereditary dystonia, hereditary ataxia, spastic paraplegia and other movement disorders. PMID- 29327100 TI - [Provision of palliative care for people with advanced dementia]. AB - As a result of a literature-based expert process, this review provides an overview about the principles of palliative care for people with advanced dementia that are relevant for clinical practice. In particular, the indications, impact and aims of palliative care for advanced dementia are described. Life prolonging measures and management of symptoms at the end of life are discussed. Furthermore, the overview focuses on the legal basis of decision making. PMID- 29327102 TI - Chemical shift assignments of retinal degeneration 3 protein (RD3). AB - Retinal degeneration 3 protein (RD3) binds to retinal membrane guanylyl cyclase (RetGC) and suppresses the basal activity of RetGC in photoreceptor cells that opposes the allosteric activation of the cyclase by GCAP proteins. Mutations in RD3 that disrupt its inhibition of RetGC are implicated in human retinal degenerative disorders. Here we report both backbone and sidechain NMR assignments for the RD3 protein (BMRB accession no. 27305). PMID- 29327103 TI - 1H, 13C and 15N resonance assignments of NEDD8 from Trypanosoma brucei. AB - Neural precursor cell-expressed, developmently downregulated 8 (NEDD8) is a small ubiquitin-like modifier, which plays important roles in many cellular processes. Although it has been well studied in many eukaryotes, NEDD8 is still uncharacterized in some unicellular parasites, such as Trypanosoma brucei (T. brucei). Here we report the resonance assignments of NEDD8 from T. brucei. PMID- 29327104 TI - Long-term efficacy of spa therapy in patients with rheumatoid arthritis. AB - Our previous crossover randomized trial suggested that spa therapy added to usual pharmacotherapy provides benefits that lasted 6 months over pharmacotherapy alone in rheumatoid arthritis patients. We now extend, and report the long-term results of that study. In the crossover trial, patients were randomized to spa therapy first group or control first group (first assignment, period 1, 6 months); after this period and washout phase (9 months), they crossed over to the other arm (second assignment, period 2, 6 months). In this long-term study, we now analyze the 15-month results of the first assignment, and 12-month results of the second assignment in the opposite side with a 6-month extension of the follow-up period. The clinical outcome measures were pain, patient and physician global assessment, Health Assessment Questionnaire, and Disease Activity Score-28. The 15-month results of first assignment revealed no statistically significant differences between the groups in any of the efficacy outcomes (p > 0.05 for all). The 12 month results for the second assignment after crossover revealed a statistically significant decrease between the groups regarding the patient global assessment scores (p = 0.016), physician global assessment scores (p = 0.003) and swollen joints counts (p = 0.030); however, no statistically significant difference was found between the groups in any of the other efficacy outcomes (p > 0.05 for all). The short- and medium-term beneficial effects of the 2-week spa therapy added to the usual pharmacotherapy observed through the initial 6-month evaluation period may be maintained mildly to moderately to the 12-month mark in rheumatoid arthritis patients receiving conventional disease-modifying antirheumatic drugs. Further studies with a larger sample size are needed for the confirmation of the study results. PMID- 29327105 TI - Catalytic Effect of Pd Clusters in the Poly(N-vinyl-2-pyrrolidone) Combustion. AB - Pd(0) is able to catalyze oxygen-involving reactions because of its capability to convert molecular oxygen to the very reactive atomic form. Consequently, the embedding of a little amount of Pd(0) clusters in polymeric phases can be technologically exploited to enhance the incineration kinetic of these polymers. The effect of nanostructuration on the Pd(0) catalytic activity in the polymer incineration reaction has been studied using poly(N-vinyl-2-pyrrolidone) ([Formula: see text] = 10,000 gmol-1) as polymeric model system. A change in the PVP incineration kinetic mechanism with significant increase in the reaction rate was experimentally found. The kinetic of the Pd(0)-catalyzed combustion has been studied by isothermal thermogravimetric analysis. After a short induction time, the combustion in presence of Pd(0) clusters shifted to a zero-order kinetic from a second-order kinetic control, which is operative in pure PVP combustion reaction. In addition, the activation energy resulted much lowered compared to the pure PVP incineration case (from 300 to 260 kJ/mol). PMID- 29327101 TI - Fundamentals of siRNA and miRNA therapeutics and a review of targeted nanoparticle delivery systems in breast cancer. AB - Gene silencing via RNA interference (RNAi) is rapidly evolving as a personalized approach to cancer treatment. The effector molecules-small interfering RNAs (siRNAs) and microRNAs (miRNAs)-can be used to silence or "switch off" specific cancer genes. Currently, the main barrier to implementing siRNA- and miRNA-based therapies in clinical practice is the lack of an effective delivery system that can protect the RNA molecules from nuclease degradation, deliver to them to tumor tissue, and release them into the cytoplasm of the target cancer cells, all without inducing adverse effects. Here, we review the fundamentals of RNAi, cell membrane transport pathways, and factors that affect intracellular delivery. We discuss the advantages and disadvantages of the various types of nanoparticle delivery systems, with a focus on those that have been investigated in breast cancer in vivo. PMID- 29327106 TI - MDCT of ductus diverticulum: 3D cinematic rendering to enhance understanding of anatomic configuration and avoid misinterpretation as traumatic aortic injury. AB - Acute aortic injuries are not common in the setting of severe blunt trauma, but lead to significant morbidity and mortality. High-quality MDCT with 2D MPRs and 3D rendering are essential to identify aortic trauma and distinguish anatomic variants and other forms of aortic pathology from an acute injury. Misinterpretation of mimics of acute aortic injury can lead to unnecessary arteriography and thoracic surgery. Since most traumatic injuries occur in the distal arch, radiologists must be cognizant of the range of appearances of variants related to the ductus diverticulum. Cinematic rendering (CR) is a new 3D post-processing tool that provides even greater anatomic detail than traditional volume rendering. In this case series, CR is used to impart to radiologists a better understanding of various anatomic configurations that can be seen with a ductus diverticulum. PMID- 29327107 TI - Imaging of pediatric neurovascular emergencies. AB - Pediatric strokes are rare but critical diagnoses to make in the emergency setting. They are associated with a set of pathologies that are not frequently encountered in the adult population. Some of these diseases have variable clinical presentations and imaging appearance depending on the age of onset and severity of the underlying pathologies. This article reviews the differential diagnoses and noninvasive imaging evaluation of pediatric cerebral ischemic and hemorrhagic diseases. PMID- 29327108 TI - Computed tomography for occult fractures of the proximal femur, pelvis, and sacrum in clinical practice: single institution, dual-site experience. AB - PURPOSE: The purpose of this study was to evaluate the diagnostic performance of CT for assessment of occult fractures of the proximal femur, pelvis, and sacrum. MATERIALS AND METHODS: A retrospective review was performed on patients who received a CT of the hip or pelvis for suspected occult fracture after negative or equivocal radiographs performed within 24 h. The official radiology report was utilized for the determination of CT findings and calculation of sensitivity and specificity. Surgical reports, MRI reports, and clinical follow-up were used as the standard of reference. Sensitivity and specificity were calculated with 95% confidence intervals. RESULTS: Seventy-four patients received CT of the hip or pelvis for clinical concern for occult fracture after negative or equivocal radiographs. By the reference standard, a total of 40 fractures were present in 25/74 (33.8%) patients, including 35 conservatively treated fractures of the greater trochanter, pelvis, and sacrum, and 5 operatively treated proximal femoral fractures. A total of 14/74 (18.9%) of patients had an MRI within 1 day of CT. MRI identified an operatively treated femoral neck fracture not seen on CT and an operatively treated intertrochanteric fracture, which CT described as a greater trochanteric fracture. There were two false negative conservatively treated pelvic fractures not seen on CT but diagnosed on MRI. On a per-patient basis, CT had an overall sensitivity of 88% (22/25; 95% confidence intervals 69 97%), specificity of 98% (48/49; 95% confidence intervals 89-100%), and negative predictive value of 94%. For the five operative proximal femoral fractures, the sensitivity of CT was 60% (3/5; 95% confidence intervals 15-95%), specificity was 99% (68/69; 95% confidence intervals 92-100%), and negative predictive value was 97%. CONCLUSIONS: In the clinical setting of suspected occult fracture, the sensitivity of clinical CT reports for detection of any type of fracture of the proximal femur, pelvis, or sacrum was 88%. For the small number of operatively treated proximal femoral fractures seen in the study, sensitivity of CT was 60% (3/5) and negative predictive value was 97%, although the relatively few patients needing fixation precludes statistical analysis. PMID- 29327110 TI - The role of interleukin-2, all-trans retinoic acid, and natural killer cells: surveillance mechanisms in anti-GD2 antibody therapy in neuroblastoma. AB - Although anti-disialoganglioside (GD2) antibodies are successfully used for neuroblastoma therapy, a third of patients with neuroblastoma experience treatment failure or serious toxicity. Various strategies have been employed in the clinic to improve antibody-dependent cell-mediated cytotoxicity (ADCC), such as the addition of interleukin (IL)-2 to enhance natural killer (NK) cell function, adoptive transfer of allogeneic NK cells to exploit immune surveillance, and retinoid-induced differentiation therapy. Nevertheless, these mechanisms are not fully understood. We developed a quantitative assay to test ADCC induced by the anti-GD2 antibody Hu14.18K322A in nine neuroblastoma cell lines and dissociated cells from orthotopic patient-derived xenografts (O-PDXs) in culture. IL-2 improved ADCC against neuroblastoma cells, and differentiation with all-trans retinoic acid stabilized GD2 expression on tumor cells and enhanced ADCC as well. Degranulation was highest in licensed NK cells that expressed CD158b (P < 0.001) and harbored a killer-cell immunoglobulin-like receptor (KIR) mismatch against the tumor-specific human leukocyte antigen (HLA; P = 0.016). In conclusion, IL-2 is an important component of immunotherapy because it can improve the cytolytic function of NK cells against neuroblastoma cells and could lower the antibody dose required for efficacy, thereby reducing toxicity. The effect of IL-2 may vary among individuals and a biomarker would be useful to predict ADCC following IL-2 activation. Sub-populations of NK cells may have different levels of activity dependent on their licensing status, KIR expression, and HLA-KIR interaction. Better understanding of HLA-KIR interactions and the molecular changes following retinoid-induced differentiation is necessary to delineate their role in ADCC. PMID- 29327111 TI - The role of the endometrial receptivity array (ERA) in patients who have failed euploid embryo transfers. AB - PURPOSE: Endometrial receptivity issues represent a potential source of implantation failure. The aim of this study was to document our experience with the endometrial receptivity array (ERA) among patients with a history of euploid blastocyst implantation failure. We investigated whether the contribution of the endometrial factor could be identified with the ERA test and if actionable results can lead to improved outcomes. METHODS: A retrospective review was performed for 88 patients who underwent ERA testing between 2014 and 2017. Reproductive outcomes were compared for patients undergoing frozen embryo transfer (FET) using a standard progesterone protocol versus those with non receptive results by ERA and subsequent FET according to a personalized embryo transfer (pET) protocol. RESULTS: Of patients with at least one previously failed euploid FET, 22.5% had a displaced WOI diagnosed by ERA and qualified for pET. After pET, we found that implantation and ongoing pregnancy rates were higher (73.7 vs. 54.2% and 63.2 vs. 41.7%, respectively) compared to patients without pET, although differences were not statistically significant. CONCLUSIONS: Our experience demonstrates that a significant proportion of patients with a history of implantation failure of a euploid embryo have a displaced WOI as detected by the ERA. For these patients, pET using a modified progesterone protocol may improve the outcomes of subsequent euploid FET. Larger randomized studies are required to validate these results. PMID- 29327109 TI - A novel biologic platform elicits profound T cell costimulatory activity and antitumor immunity in mice. AB - Combination immunotherapies utilizing complementary modalities that target distinct tumor attributes or immunosuppressive mechanisms, or engage different arms of the antitumor immune response, can elicit greater therapeutic efficacy than the component monotherapies. Increasing the number of agents included in a therapeutic cocktail can further increase efficacy, however, this approach poses numerous challenges for clinical translation. Here, a novel platform to simplify combination immunotherapy by covalently linking immunotherapeutic agonists to the costimulatory receptors CD134 and CD137 into a single heterodimeric drug, "OrthomAb", is shown. This reagent not only retains costimulatory T cell activity, but also elicits unique T cell functions that are not programmed by either individual agonist, and preferentially expands effector T cells over Tregs. Finally, in an aggressive melanoma model OrthomAb elicits better therapeutic efficacy compared to the unlinked agonists. This demonstration that two drugs can be combined into one provides a framework for distilling complex combination drug cocktails into simpler delivery platforms. PMID- 29327112 TI - Simultaneous pre-concentration and separation on simple paper-based analytical device for protein analysis. AB - In this work, fast isoelectric focusing (IEF) was successfully implemented on an open paper fluidic channel for simultaneous concentration and separation of proteins from complex matrix. With this simple device, IEF can be finished in 10 min with a resolution of 0.03 pH units and concentration factor of 10, as estimated by color model proteins by smartphone-based colorimetric detection. Fast detection of albumin from human serum and glycated hemoglobin (HBA1c) from blood cell was demonstrated. In addition, off-line identification of the model proteins from the IEF fractions with matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS) was also shown. This PAD IEF is potentially useful either for point of care test (POCT) or biomarker analysis as a cost-effective sample pretreatment method. PMID- 29327113 TI - Storage stability study of porcine hepatic and intestinal cytochrome P450 isoenzymes by use of a newly developed and fully validated highly sensitive HPLC MS/MS method. AB - Microsomes are an ideal medium to investigate cytochrome P450 (CYP450) enzyme mediated drug metabolism. However, before microsomes are prepared, tissues can be stored for a long time. Studies about the stability of these enzymes in porcine hepatic and intestinal tissues upon storage are lacking. To be able to investigate CYP450 stability in microsomes prepared from these tissues, a highly sensitive and rapid HPLC-MS/MS method for the simultaneous determination of six CYP450 metabolites in incubation medium was developed and validated. The metabolites, paracetamol (CYP1A), 7-hydroxy-coumarin (CYP2A), 1-hydroxy-midazolam (CYP3A), 4-hydroxy-tolbutamide (CYP2C), dextrorphan (CYP2D), and 6-hydroxy chlorzoxazone (CYP2E) were extracted with ethyl acetate at pH 1.0, followed by evaporation and separation on an Agilent Zorbax Eclipse Plus C18 column. The method was fully validated in a GLP-compliant laboratory according to European guidelines and was highly sensitive (LOQ = 0.25-2.5 ng/mL), selective, had good precision (RSD-within, 1.0-9.1%; RSD-between, 1.0-18.4%) and accuracy (within run, 83.3-102%; between-run, 78.5-102%), and showed no relative signal suppression and enhancement. Consequently, this method was applied to study the stability of porcine hepatic and intestinal CYP450 isoenzymes when tissues were stored at - 80 degrees C. The results indicate that porcine CYP450 isoenzymes are stable in tissues at least up to 4 months when snap frozen and stored at - 80 degrees C. Moreover, the results indicate differences in porcine CYP450 stability compared to rat, rabbit, and fish CYP450, as observed by other research groups, hence stressing the importance to investigate the CYP450 stability of a specific species. PMID- 29327115 TI - Investigation of an appropriate contrast-enhanced CT protocol for young patients following the Fontan operation. AB - PURPOSE: Children with congenital heart diseases (CHDs) may need to be followed up with contrast-enhanced CT following the Fontan operation because complications such as the occlusion of conduits may occur. The purpose of the present study was to develop an adequate contrast-enhanced CT protocol for children with CHD following the Fontan operation. MATERIALS AND METHODS: Between July 2012 and July 2017, 29 CT examinations for 26 patients aged 2-11 years (median 5 years) with CHD following the Fontan operation were performed using dual-source CT. A non ionized contrast medium was injected through the dorsum manus vein. Scanning began 60 or 70 s after the start of the injection. The delayed phase was randomly selected to be 60 s in 14 cases and 70 s in 15 cases. We evaluated the enhancement of conduits following the Fontan operation at delayed phases. RESULTS: The CT numbers of conduits at 60 and 70 s were 185 +/- 46 and 185 +/- 31 HU, respectively (P = 0.97). CONCLUSION: In contrast-enhanced CT for children after the Fontan operation, both of the delayed phases (60 and 70 s) appeared to be adequate for evaluating intraconduit patency. PMID- 29327114 TI - Anthropometric characteristics and ovarian cancer risk and survival. AB - PURPOSE: Multiple studies have examined the role of anthropometric characteristics in ovarian cancer risk and survival; however, their results have been conflicting. We investigated the associations between weight change, height and height change and risk and outcome of ovarian cancer using data from a large population-based case-control study. METHODS: Data from 699 ovarian cancer cases and 1,802 controls who participated in the HOPE study were included. We used unconditional logistic regression adjusted for age, race, number of pregnancies, use of oral contraceptives, and family history of breast or ovarian cancer to examine the associations between self-reported height and weight and height change with ovarian cancer risk. Cox proportional hazards regression models adjusted for age and stage were used to examine the association between the exposure variables and overall and progression-free survival among ovarian cancer cases. RESULTS: We observed an increased risk of ovarian cancer mortality and progression for gaining more than 20 pounds between ages 18-30, HR 1.36; 95% CI 1.05-1.76, and HR 1.31; 95% CI 1.04-1.66, respectively. Losing weight and gaining it back multiple times was inversely associated with both ovarian cancer risk, OR 0.78; 95% CI 0.63-0.97 for 1-4 times and OR 0.73; 95% CI 0.54-0.99 for 5-9 times, and mortality, HR 0.63; 95% CI 0.40-0.99 for 10-14 times. Finally, being taller during adolescence and adulthood was associated with increased risk of mortality. Taller stature and weight gain over lifetime were not related to ovarian cancer risk. CONCLUSIONS: Our results suggest that height and weight and their change over time may influence ovarian cancer risk and survival. These findings suggest that biological mechanisms underlying these associations may be hormone driven and may play an important role in relation to ovarian carcinogenesis and tumor progression. PMID- 29327116 TI - Evaluation of hemodynamic imaging findings of hypervascular hepatocellular carcinoma: comparison between dynamic contrast-enhanced magnetic resonance imaging using radial volumetric imaging breath-hold examination with k-space weighted image contrast reconstruction and dynamic computed tomography during hepatic arteriography. AB - PURPOSE: To compare the visualization of hemodynamic imaging findings of hypervascular hepatocellular carcinoma (HCC) on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) using radial volumetric imaging breath-hold examination with k-space-weighted image contrast reconstruction (r-VIBE-KWIC) versus dynamic computed tomography during hepatic arteriography (dyn-CTHA). MATERIALS AND METHODS: We retrospectively reviewed the databases of preoperative DCE-MRI using r-VIBE-KWIC, dyn-CTHA, and postoperative pathology of resected specimens. Fourteen patients with 14 hypervascular HCCs underwent both DCE-MRI and dyn-CTHA. The imaging findings of the tumor and adjacent liver parenchyma were assessed on both modalities by two readers. The tumor enhancement time was also compared between the two modalities. RESULTS: On DCE-MRI/dyn-CTHA, early staining, peritumoral low-intensity or low-density bands, corona enhancement, and washout of HCC were observed in 14/14 (100%), 10/12 (83%), 11/14 (78%), and 4/14 (29%) patients, respectively. Pathologically, four HCCs with low-density bands on dyn-CTHA had no fibrous capsules. The median tumor enhancement time on DCE-MRI and dyn-CTHA was 24 (9-24) and 23 (8-35) s, respectively. The correlation coefficient between the two groups was 0.762 (P < 0.002). CONCLUSIONS: DCE-MRI using r-VIBE-KWIC has diagnostic potential comparable with that of dyn-CTHA in the hemodynamic evaluation of hypervascular HCC except for the washout phenomenon. PMID- 29327117 TI - Graphical classification of DNA sequences of HLA alleles by deep learning. AB - Alleles of human leukocyte antigen (HLA)-A DNAs are classified and expressed graphically by using artificial intelligence "Deep Learning (Stacked autoencoder)". Nucleotide sequence data corresponding to the length of 822 bp, collected from the Immuno Polymorphism Database, were compressed to 2-dimensional representation and were plotted. Profiles of the two-dimensional plots indicate that the alleles can be classified as clusters are formed. The two-dimensional plot of HLA-A DNAs gives a clear outlook for characterizing the various alleles. PMID- 29327119 TI - Nocturnal hypoxemic burden is associated with epicardial fat volume in patients with acute myocardial infarction. AB - BACKGROUND: Increased epicardial fat volume (EFV) is a common feature of patients with sleep-disordered breathing (SDB), is considered as an established marker of cardiovascular risk, and is associated with adverse cardiovascular events after myocardial infarction (MI). METHODS: To investigate the association between different measures of SDB severity and EFV after acute MI, we enrolled 105 patients with acute MI in this study. Unattended in-hospital polysomnography was performed to determine the number of apneas and hypopneas per hour during sleep (apnea-hypopnea index, AHI). To determine nocturnal hypoxemic burden, we used pulse oximetry and applied a novel parameter, the hypoxia load representing the integrated area of desaturation divided by total sleep time (HLTST). Of 105 patients, 56 underwent cardiovascular magnetic resonance to define EFV. RESULTS: HLTST was significantly associated with EFV (r2 = 0.316, p = 0.025). Multivariate linear regression analysis accounting for age, sex, body mass index, smoking, and left ventricular mass demonstrated that the HLTST was an independent modulator of EFV (B-coefficient 0.435 (95% CI 0.021-0.591); p = 0.015). In contrast, AHI or established measures of hypoxemia did not correlate with EFV. CONCLUSIONS: HLTST, a novel parameter to determine nocturnal hypoxemic burden, and not AHI as an event-based measure of SDB, was associated with EFV in patients with acute MI. Further studies are warranted to confirm the link between nocturnal hypoxemia and EFV and to determine the prognostic value of a more detailed characterization of nocturnal hypoxemic burden in patients with high cardiovascular risk. PMID- 29327120 TI - Readmission and reoperation after midurethral sling. AB - INTRODUCTION AND HYPOTHESIS: We aimed to determine the rate of readmission and reoperation for patients undergoing midurethral sling (MUS) placement for stress urinary incontinence (SUI). METHODS: The American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database was queried to identify all isolated MUS placed from 2012 through 2015 using the Current Procedural Terminology 4 (CPT-4) code for MUS with or without cystoscopy (57,288 +/- 52,000). The cohort was then reviewed for unplanned, related readmissions and reoperations within 30 days of MUS placement. RESULTS: Isolated MUS was placed in 9910 patients. Fifty-eight (0.59%) patients were readmitted and 81 (0.82%) had reoperation. The most common indications for readmission were related to the urinary tract, i.e., urinary retention (27.6%), non-surgical-site-related infection (15.5%), and medical related issues (15.5%) The most common indications for reoperation were urinary tract (60.5%), gastrointestinal (7.4%), and gynecologic, i.e., examination under anesthesia (6.2%). Body mass index (BMI) was less (p = 0.001), and operative time (p = 0.014) and length of stay (LOS) (p = 0.001) longer in patients who were readmitted. Those who underwent reoperation had longer LOS than those who did not have reoperation (p < 0.001). Upon multivariate analysis, BMI <25 (all p < 0.05) and longer LOS maintained statistical significance as risk factors for those who experienced readmission or reoperation (p = 0.0406, p < 0001). CONCLUSIONS: Isolated MUS placement has low 30-day readmission and reoperation rates. Increased LOS was associated with readmission, while increased LOS and BMI <25 were associated with reoperation within 30 days. PMID- 29327118 TI - Effect of CPAP therapy on liver disease in patients with OSA: a review. AB - Obstructive sleep apnea (OSA) may play an important role in the progression of nonalcoholic fatty liver disease (NAFLD).The effect of continuous positive airway pressure (CPAP) treatment, the first-line therapy for OSA, on liver disease in OSA patients is still debated. We provide this review of previous studies to summarize the effects of CPAP treatment on liver disease in OSA patients in aspects of liver function, liver steatosis, fibrosis, and incidence of liver disease. CPAP treatment may be beneficial to liver disease in subjects with OSA independent of metabolic risk factors, but a sufficiently long therapeutic duration (perhaps greater than 3 months) may be needed to achieve these positive effects. Though the mechanism of impact of CPAP treatment on liver in OSA patients is unclear, the influence of CPAP treatment on the factors of the "Two hit" hypothesis (insulin resistance, fatty acids dysregulation, oxidative stress, and inflammation) may be a reasonable explanation. PMID- 29327121 TI - Recognition of Association Between Blood Stasis Syndrome and Traumatic Injury among Doctors of Korean Medicine: A Cross-Sectional Observation Study. AB - OBJECTIVE: To investigate the diagnostic indicators and herbal treatments for blood stasis syndrome (BSS) patients with traumatic injuries and to identify the association between BSS and traumatic injury in Korea. METHODS: Two-hundred and four patients with traumatic injury were recruited from the Gangnam and Daejeon branches of Jaseng Hospital of Oriental Medicine between June 2014 and December 2014. Two independent doctors of Korean medicine (DKMs) determined the diagnosis of BSS or non-BSS based on the subjects signs and symptoms. The scores assigned to BSS symptoms and DKMs' reasons for diagnosing BSS in patients with traumatic injury were investigated. Both medication and herbal prescription records from a 3-month period were collected for all patients diagnosed with BSS by both DKMs. RESULTS: A total of 169 of 204 (82.8%) patients received consistent diagnosis related to BSS by two DKMs. Among them, 54.4% (92 cases) were diagnosed with BSS, and 45.6% (77 cases) were not diagnosed with BSS. DKMs most frequently cited symptoms of recent traumatic injury as justifications for BSS diagnoses, and also selected pain-related indicators such as abdominal pain, sharp pain and nocturnal pain as important reasons in diagnosing BSS. In addition, an inconsistency in the pattern identification theory with respect to traumatic injury was observed. Although only 92 cases (54.4%) of patients were diagnosed with BSS, 77.6% of them were prescribed decoctions for BSS. CONCLUSIONS: DKMs considered traumatic injury could cause BSS, and utilized decoction for BSS in patients with traumatic injury without confirming a diagnosis of BSS because they assumed the main symptoms or pathologies of traumatic injury to be closely related to BSS. PMID- 29327122 TI - Understanding Qi Running in the Meridians as Interstitial Fluid Flowing via Interstitial Space of Low Hydraulic Resistance. AB - Qi, blood and the meridians are fundamental concepts in Chinese medicine (CM), which are components of the human body and maintain physiological function. Pathological changes of qi, blood and meridians may lead to discomfort and disease. Treatment with acupuncture or herbal medicine aims to regulate qi and blood so as to recover normal function of the meridians. This paper explores the nature of qi as well as compares and correlates them with the structures of the human body. We propose a conceptualization of qi as being similar to the interstitial fluid, and the meridians as being similar to interstitial space of low hydraulic resistance in the body. Hence, qi running in the meridians can be understood as interstitial fluid flowing via interstitial space of low hydraulic resistance. PMID- 29327123 TI - Text Mining of Rheumatoid Arthritis and Diabetes Mellitus to Understand the Mechanisms of Chinese Medicine in Different Diseases with Same Treatment. AB - OBJECTIVE: To identify the commonalities between rheumatoid arthritis (RA) and diabetes mellitus (DM) to understand the mechanisms of Chinese medicine (CM) in different diseases with the same treatment. METHODS: A text mining approach was adopted to analyze the commonalities between RA and DM according to CM and biological elements. The major commonalities were subsequently verified in RA and DM rat models, in which herbal formula for the treatment of both RA and DM identified via text mining was used as the intervention. RESULTS: Similarities were identified between RA and DM regarding the CM approach used for diagnosis and treatment, as well as the networks of biological activities affected by each disease, including the involvement of adhesion molecules, oxidative stress, cytokines, T-lymphocytes, apoptosis, and inflammation. The Ramulus Cinnamomi Radix Paeoniae Alba-Rhizoma Anemarrhenae is an herbal combination used to treat RA and DM. This formula demonstrated similar effects on oxidative stress and inflammation in rats with collagen-induced arthritis, which supports the text mining results regarding the commonalities between RA and DM. CONCLUSION: Commonalities between the biological activities involved in RA and DM were identified through text mining, and both RA and DM might be responsive to the same intervention at a specific stage. PMID- 29327124 TI - Puerarin Up-regulates Methyl-CpG Binding Protein 2 Phosphorylation in Hippocampus of Vascular Dementia Rats. AB - OBJECTIVE: To observe the effect of puerarin on methyl-CpG binding protein 2 (MeCP2) phosphorylation (pMeCP2) in the hippocampus of a rat model of vascular dementia (VD). METHODS: Thirty-six healthy Sprague-Dawley rats were randomly assigned to the sham-operated group, dementia group and puerarintreated group using a random number table (n=12 per group). The modifified permanent bilateral common carotid artery occlusion method was used to establish the VD model. The sham-operated and dementia groups were given 2 mL/d of saline, while the puerarin treated group was given 100 mg/(kg*d) of puerarin for 17 days. The learning and memory abilities were evaluated by the Morris water maze test. Hematoxylin-eosin staining, immunohistochemical (IHC) staining and Western blot analysis were carried out to observe changes in neuron morphology and in level of pMeCP2 in the hippocampus, respectively. RESULTS: The morphologies of rat hippocampal neurons in the puerarintreated group were markedly improved compared with the dementia group. The escape latency of the dementia group was significantly longer than the sham-operated group (P<0.05), while the puerarin-treated group was obviously shorter than the dementia group (P<0.05). Cross-platform times of the dementia group were signifificantly decreased compared with the sham-operated group (P<0.05), while the puerarin-treated group was obviously increased compared with the dementia group (P<0.05). IHC staining showed no significant difference in the number of MeCP2 positive cells among 3 groups (P>0.05). The number of pMeCP2 positive cells in the CA1 region of hippocampus in the dementia group was signifificantly increased compared with the sham-operated group, and the puerarin treated group was signifificantly increased compared with the dementia group (both P<0.05). Western blot analysis showed no signifificant difference of MeCP2 expression among 3 groups (P>0.05). The expression of pMeCP2 in the dementia group was signifificantly increased compared with the sham-operated group, while it in the puerarin-treated group was signifificantly increased compared with the dementia group (P<0.05). CONCLUSION: Puerarin could play a role in the protection of nerve cells through up-regulating pMeCP2 in the hippocampus, improving neuron morphologies, and enhancing learning and memory ablities in a rat model of VD. PMID- 29327126 TI - Antipyretic Effect of Herba Ephedrae-Ramulus Cinnamomi Herb Pair on Yeast-Induced Pyrexia Rats: A Metabolomics Study. AB - OBJECTIVE: To investigate the antipyretic mechanism of Herba Ephedrae (Eph) Ramulus Cinnamomi (RC) herb pair on yeast-induced pyrexia in rats. METHODS: Totally 30 qualified male SD rats were randomly assigned to the normal control (NC) group, the pyrexia model (model) group, the Eph, RC and Eph-RC treatment groups by a random digital table, 6 rats in each group. Each rat received a 20% aqueous suspension of yeast (10 mL/kg) except the NC group. The 3 treatment groups were administered 8.1, 5.4 and 13.5 g/kg Eph, RC and Eph-RC respectively at 5 and 12 h after yeast injection, the NC group and the model groups were administered equal volume of distilled water. Rectal temperatures were measured at 0, 6, 8, 10, 12, 15, 18, 24 and 30 h and urine was collected prior to yeast injection and at 6, 10, 18, 24, 30, and 36 h after yeast injection. Then urine metabolomic profiling by gas chromatography tandem mass spectrometry, coupled with multivariate statistical analysis and pattern recognition techniques were used to explore the antipyretic effects of Eph-RC. Partial least squares discriminate analysis was used to analyze the metabolomics dataset including classification and regression in metabolomics plot profiling. RESULTS: Compared with the NC group, rectal temperatures were significantly higher in the model group (P<0.01), while 3 treatment groups decreased significantly compared with the model group (P<0.05 or P<0.01). Rectal temperatures of Eph-RC-treated rats started to go down at 6 h, and markedly decreased at 8, 12, 15, 18 and 24 h (P<0.05 or P<0.01), while those of the Eph and RC groups had decreased firstly at 8 h and were markedly lower at 12 h (P<0.05 or P<0.01). Seventeen potential biomarkers related to pyrexia were confirmed and identified, including pyruvic acid, L-phenylalanine, L-tyrosine, phenylacetic acid, hippuric acid, succinic acid, citrate and so on. Eight potential alterations of metabolic pathways including phenylalanine metabolism, citrate cycle, tryptophan metabolism, biosynthesis of valine, leucine and isoleucine, were identified in relation to the antipyretic effects of Eph-RC using MetPA software. CONCLUSION: The antipyretic effect of Eph-RC herb pair on yeast-induced pyrexia in rats involved correction of perturbed amino acid, fatty acid, and carbohydrate metabolism according to the metabolic pathway analysis with MetPA. PMID- 29327127 TI - A child with painless left wrist swelling. PMID- 29327125 TI - Icariin Improves Cognitive Impairment after Traumatic Brain Injury by Enhancing Hippocampal Acetylation. AB - OBJECTIVE: To examine the effect of icariin (ICA) on the cognitive impairment induced by traumatic brain injury (TBI) in mice and the underlying mechanisms related to changes in hippocampal acetylation level. METHODS: The modifified free fall method was used to establish the TBI mouse model. Mice with post-TBI cognitive impairment were randomly divided into 3 groups using the randomised block method (n=7): TBI (vehicle-treated), low-dose (75 mg/kg) and high-dose (150 mg/kg) of ICA groups. An additional sham-operated group (vehicle-treated) was employed. The vehicle or ICA was administrated by gavage for 28 consecutive days. The Morris water maze (MWM) test was conducted. Acetylcholine (ACh) content, mRNA and protein levels of choline acetyltransferase (ChAT), and protein levels of acetylated H3 (Ac-H3) and Ac-H4 were detected in the hippocampus. RESULTS: Compared with the sham-operated group, the MWM performance, hippocampal ACh content, mRNA and protein levels of ChAT, and protein levels of Ac-H3 and Ac-H4 were signifificantly decreased in the TBI group (P<0.05). High-dose of ICA signifificantly ameliorated the TBI-induced weak MWM performance, increased hippocampal ACh content, and mRNA and protein levels of ChAT, as well as Ac-H3 protein level compared with the TBI group (P<0.05). CONCLUSION: ICA improved post TBI cognitive impairment in mice by enhancing hippocampal acetylation, which improved hippocampal cholinergic function and ultimately improved cognition. PMID- 29327128 TI - Isolated avulsion fracture of the first metatarsal base at the peroneus longus tendon attachment: a case report. AB - Avulsion fractures of the first metatarsal (MT1) base at the peroneus longus (PL) tendon attachment are rare and may be undiagnosed during an emergency visit. If the injury is not treated properly, chronic pain or persistent impairment for inversion and plantar-flexion of the first ray may occur. This case report presents a 30-year-old woman who presented 10 weeks post trauma to a foot and ankle surgeon due to a swollen right midfoot with diffuse tenderness over the medial Lisfranc joint. Further evaluation showed an isolated avulsion fracture of the first metatarsal, which was undiagnosed during the emergent visit following the accident. In this case, the patient was successfully treated conservatively. The goal of this article is to raise awareness of this rare injury for radiologists and orthopedic surgeons. PMID- 29327129 TI - Quantification of osteoblastic activity in epiphyseal growth plates by quantitative bone SPECT/CT. AB - OBJECTIVE: Quantifying the function of the epiphyseal plate is worthwhile for the management of children with growth disorders. The aim of this retrospective study was to quantify the osteoblastic activity at the epiphyseal plate using the quantitative bone SPECT/CT. MATERIALS AND METHODS: We enrolled patients under the age of 20 years who received Tc-99m hydroxymethylene diphosphonate bone scintigraphy acquired by a quantitative SPECT/CT scanner. The images were reconstructed by ordered subset conjugate-gradient minimizer, and the uptake on the distal margin of the femur was quantified by peak standardized uptake value (SUVpeak). A public database of standard body height was used to calculate growth velocities (cm/year). RESULTS: Fifteen patients (6.9-19.7 years, 9 female, 6 male) were enrolled and a total of 25 legs were analyzed. SUVpeak in the epiphyseal plate was 18.9 +/- 2.4 (average +/- standard deviation) in the subjects under 15 years and decreased gradually by aging. The SUVpeak correlated significantly with the age- and sex-matched growth velocity obtained from the database (R2 = 0.83, p < 0.0001). CONCLUSION: The SUV measured by quantitative bone SPECT/CT was increased at the epiphyseal plates of children under the age of 15 years in comparison with the older group, corresponding to higher osteoblastic activity. Moreover, this study suggested a correlation between growth velocity and the SUV. Although this is a small retrospective pilot study, the objective and quantitative values measured by the quantitative bone SPECT/CT has the potential to improve the management of children with growth disorder. PMID- 29327132 TI - Impact of ENIGMA trials on nitrous oxide: a survey of Canadian anesthesiologists and residents. PMID- 29327131 TI - Renal vein thrombosis complicating severe acute pyelonephritis with renal abscesses and associated bacteraemia caused by extended-spectrum beta-lactamase producing Escherichia coli. AB - Acute pyelonephritis might be complicated by the formation of renal and perirenal abscesses and very rarely by renal vein thrombosis, which is a life-threatening condition. The main causative agents of acute pyelonephritis are enterobacteriaceae with the incidence of extended-spectrum beta-lactamase (ESBL) producing strains increasing worldwide. We present the case of a 71-year-old Greek man with history of diabetes mellitus and recent hospitalization, who suffered from severe pyelonephritis with renal abscesses formation and associated bacteraemia caused by ESBL-producing Escherichia coli, complicated by extensive thrombosis of the ipsilateral renal vein and its branches, protruding also in the inferior venal cava. Our patient was effectively treated with anticoagulants and targeted antibiotic therapy, respectively, consisted of low molecular weight heparin transitioned to oral acenocoumarol for 3 months and 2-week course of intravenous meropenem followed by oral fosfomycin for additional 3 weeks as quidded by clinical and computed tomographic follow-up. In conclusion, in complicated urinary infections, caused by ESBL-producing enterobacteriaceae, oral fosfomycin might represent an effective option for step-down therapy of carbapenems, allowing the shortness of the duration of patient's hospitalization and carbapenem use. PMID- 29327133 TI - Mobile ascending aortic mass presenting as acute myocardial infarction. PMID- 29327134 TI - Management strategies for unintentional dural puncture: a Canadian experience survey in an academic setting. PMID- 29327135 TI - Acquiring and maintaining point-of-care ultrasound (POCUS) competence for anesthesiologists. AB - PURPOSE: Point-of-care ultrasound (POCUS) involves the bedside use of ultrasound to answer specific diagnostic questions and to assess real-time physiologic responses to treatment. Although POCUS has become a well-established resource for emergency and critical care physicians, anesthesiologists are still working to obtain POCUS skills and to incorporate them into routine practice. This review defines the benefits of POCUS to anesthesia practice, identifies challenges to establishing POCUS in routine anesthesia care, and offers solutions to help guide its incorporation going forward. PRINCIPAL FINDINGS: Benefits to POCUS include improving the sensitivity and specificity of the physical examination and helping to guide patient treatment. The challenges to establishing POCUS as a standard in anesthesia practice include developing and maintaining competence. There is a need to develop standards of practice and a common language between specialties to facilitate training and create guidelines regarding patient management. CONCLUSIONS: Presently, our specialty requires consensus by expert stakeholders to address issues of competence, certification, development of standards and terminology, and the management of unexpected diagnoses. To promote POCUS competency in our discipline, we support its incorporation into anesthesiology curricula and training programs and the continuing professional development of POCUS-related activities at a national level. PMID- 29327136 TI - Signal Detection for Recently Approved Products: Adapting and Evaluating Self Controlled Case Series Method Using a US Claims and UK Electronic Medical Records Database. AB - INTRODUCTION: The Self-Controlled Case Series (SCCS) method has been widely used for hypothesis testing, but there is limited evidence of its performance for safety signal detection. OBJECTIVE: The objective of this study was to evaluate SCCS for signal detection on recently approved products. METHODS: A retrospective study covered the period after three recently marketed drugs were launched through to 31 December 2010 using The Health Improvement Network, a UK primary care database, and Optum, a US claims database. The SCCS method was applied to examine five heterogenous outcomes with desvenlafaxine and escitalopram and six outcomes with adalimumab for Signals of Disproportional Recording (SDRs); a positive finding was determined to be when the lower bound of 95% Confidence Interval of the incidence rate ratio (IRR) estimate was > 1. Multiple design choices were tested and the trend in IRR estimates over calendar time for one drug event pair was examined. RESULTS: All six outcomes with adalimumab, three of five outcomes with desvenlafaxine, and four of five outcomes with escitalopram had SDRs. SCCS highlighted all acute events in the primary analysis but was less successful with slower-onset outcomes. Performance varied by risk period definition. Changes in IRR estimates over quarterly intervals for adalimumab with herpes zoster showed marked higher SDR within 9 months of drug launch. CONCLUSION: SCCS shows promise for signal detection: it may highlight known associations for recent marketed products and has potential for early signal identification. SCCS performance varied by design choice and the nature of both exposure and event pair. Future work is needed to determine how effective the approach is in prospective testing and determining the performance characteristics of the approach. PMID- 29327130 TI - Main steps in DNA double-strand break repair: an introduction to homologous recombination and related processes. AB - DNA double-strand breaks arise accidentally upon exposure of DNA to radiation and chemicals or result from faulty DNA metabolic processes. DNA breaks can also be introduced in a programmed manner, such as during the maturation of the immune system, meiosis, or cancer chemo- or radiotherapy. Cells have developed a variety of repair pathways, which are fine-tuned to the specific needs of a cell. Accordingly, vegetative cells employ mechanisms that restore the integrity of broken DNA with the highest efficiency at the lowest cost of mutagenesis. In contrast, meiotic cells or developing lymphocytes exploit DNA breakage to generate diversity. Here, we review the main pathways of eukaryotic DNA double strand break repair with the focus on homologous recombination and its various subpathways. We highlight the differences between homologous recombination and end-joining mechanisms including non-homologous end-joining and microhomology mediated end-joining and offer insights into how these pathways are regulated. Finally, we introduce noncanonical functions of the recombination proteins, in particular during DNA replication stress. PMID- 29327137 TI - MicroRNA expression in SMARCB1/INI1-deficient sinonasal carcinoma: a clinicopathological and molecular genetic study. PMID- 29327138 TI - Handling and reporting of transperineal template prostate biopsy in Europe: a web based survey by the European Network of Uropathology (ENUP). AB - Transperineal template prostate biopsies (TTPB) are performed for assessments after unexpected negative transrectal ultrasound biopsies (TRUSB), correlation with imaging findings and during active surveillance. The impact of TTPBs on pathology has not been analysed. The European Network of Uropathology (ENUP) distributed a survey on TTPB, including how specimens were received, processed and analysed. Two hundred forty-four replies were received from 22 countries with TTPBs seen by 68.4% of the responders (n = 167). Biopsies were received in more than 12 pots in 35.2%. The number of cores embedded per cassette varied between 1 (39.5%) and 3 or more (39.5%). Three levels were cut in 48.3%, between 2 and 3 serial sections in 57.2% and unstained spare sections in 45.1%. No statistical difference was observed with TRUSB management. The number of positive cores was always reported and the majority gave extent per core (82.3%), per region (67.1%) and greatest involvement per core (69.4%). Total involvement in the whole series and continuous/discontinuous infiltrates were reported in 42.2 and 45.4%, respectively. The majority (79.4%) reported Gleason score in each site or core, and 59.6% gave an overall score. A minority (28.5%) provided a map or a diagram. For 19%, TTPB had adversely affected laboratory workload with only 27% managing to negotiate extra costs. Most laboratories process samples thoroughly and report TTPB similarly to TRUSB. Although TTPB have caused considerable extra work, it remains uncosted in most centres. Guidance is needed for workload impact and minimum standards of processing if TTPB work continues to increase. PMID- 29327139 TI - Galectin-3 levels relate in children to total body fat, abdominal fat, body fat distribution, and cardiac size. AB - : Galectin-3 has recently been proposed as a novel biomarker for cardiovascular disease in adults. The purpose of this investigation was to assess relationships between galectin-3 levels and total body fat, abdominal fat, body fat distribution, aerobic fitness, blood pressure, left ventricular mass, left atrial size, and increase in body fat over a 2-year period in a population-based sample of children. Our study included 170 children aged 8-11 years. Total fat mass and abdominal fat were measured by dual-energy x-ray absorptiometry (DXA). Body fat distribution was expressed as abdominal fat/total fat mass. Maximal oxygen uptake was assessed by indirect calorimetry during a maximal exercise test and scaled to body mass. Systolic and diastolic blood pressure and pulse pressure were measured. Left atrial size, left ventricular mass, and relative wall thickness were measured by echocardiography. Frozen serum samples were analyzed for galectin-3 by the Proximity Extension Assay technique. A follow-up DXA scan was performed in 152 children 2 years after the baseline exam. Partial correlations, with adjustment for sex and age, between galectin-3 versus body fat measurements indicated weak to moderate relationships. Moreover, left atrial size, left ventricular mass, and relative wall thickness and pulse pressure were also correlated with galectin-3. Neither systolic blood pressure nor maximal oxygen uptake was correlated with galectin-3. There was also a correlation between galectin-3 and increase in total body fat over 2 years, while no such correlations were found for the other fat measurements. CONCLUSION: More body fat and abdominal fat, more abdominal body fat distribution, more left ventricular mass, and increased left atrial size were all associated with higher levels of galectin-3. Increase in total body fat over 2 years was also associated with higher levels of galectin-3. What is Known: * Galectin-3 has been linked to obesity and been proposed to be a novel biomarker for cardiovascular disease in adults. * Information on this subject in children is very scarce. What is New: * The present study demonstrates a relationship between galectin-3 levels and total body fat, abdominal fat, body fat distribution, cardiac size and geometry, and increase in total body fat over 2 years in young children. PMID- 29327141 TI - Theoretical study on benzoheterocycle based energetic materials, effect of heterocyclic-fused, conjugation, hydrogen bond, and substitutional group on the detonation performance. AB - In this paper, four series of benzoheterocycle based energetic materials (EMs) have been designed to plan out a strategy to improve the density and safety of EMs, such as combining the insensitive group with aminobenzene ring and the high energetic nitramine explosives, benzo-heterocycle mother ring, designing multi nitrogen heterocycles with a conjugated system containing N-N and C-N high energy bonds, and hydrogen bonding. Their optimized structure and detonation properties were first calculated and discussed using DFT methods. After calculation, these designed explosives all showed good detonation from 7352 m/s to 8788 m/s. Among them, the compounds with six nitro groups, 1c, 2c, 3c, and 4c, exhibit better performance and rather poor impact sensitivity. However, we found that the compounds with five nitro groups and one amino group have a limited performance reduction and a rapid stability improvement. These four compounds, 1b, 2b, 3b, and 4b, have good detonation performance and better stability. Moreover, the synthesis routes for these four compounds were also designed. The precursor 4-0 and mononitro product 4-1 were successfully synthesized. Their 1H NMR, single crystal, and elemental analysis were also done to verify the structures. PMID- 29327142 TI - Quality of life and disability 12 months after surgery vs. conservative management for unruptured brain arteriovenous malformations: Scottish population based and Australian hospital-based studies. AB - BACKGROUND: Few data are available on disability and quality of life (QOL) after surgery versus conservative management for unruptured brain arteriovenous malformations (uAVMs). OBJECTIVE: The aim of this study was to test the hypothesis that QOL and disability are worse after surgery +/- preoperative embolisation for uAVM compared with conservative management. METHODS: We included consecutive patients diagnosed with uAVM from a prospective population-based study in Scotland (1999-2003; 2006-2010) and a prospective hospital-based series in Australia (2011-2015). We assessed outcomes on the modified Rankin Scale (mRS) and the Short Form (SF)-36 at ~ 12 months after surgery or conservative treatment and compared these groups using continuous ordinal regression in the two cohorts separately. RESULTS: Surgery was performed for 29% of all uAVM cases diagnosed in Scotland and 84% of all uAVM referred in Australia. There was no statistically significant difference between surgery and conservative management at 12 months among 79 patients in Scotland (mean SF-36 Physical Component Score (PCS) 39 [SD 14] vs. 39 [SD 13]; mean SF-36 Mental Component Score (MCS) 38 [SD 14] vs. 39 [SD 14]; mRS > 1, 24 vs. 9%), nor among 37 patients in Australia (PCS 51 [SD 10] vs. 49 [SD 6]; MCS 48 [SD 12] vs. 49 [SD 10]; mRS > 1, 19 vs. 30%). In the Australian series, there was no statistically significant change in the MCS and PCS between baseline before surgery or conservative management and 12 months. CONCLUSIONS: We did not find a statistically significant difference between surgery +/- preoperative embolisation and conservative management in disability or QOL at 12 months. PMID- 29327140 TI - Children's experiences of congenital heart disease: a systematic review of qualitative studies. AB - : We aimed to describe the experiences of children and adolescents with congenital heart disease (CHD). Electronic databases were searched until August 2016. Qualitative studies of children's perspectives on CHD were included. Data was extracted using thematic synthesis. From 44 studies from 12 countries involving 995 children, we identified 6 themes: disrupting normality (denying the diagnosis, oscillating between sickness and health, destabilizing the family dynamic), powerlessness in deteriorating health (preoccupation with impending mortality, vulnerability to catastrophic complications, exhaustion from medical testing), enduring medical ordeals (traumatized by invasive procedures, disappointed by treatment failure, displaced by transition, valuing empathy and continuity in care, overcoming uncertainty with information), warring with the body (losing stamina, distressing inability to participate in sport, distorted body image, testing the limits), hampering potential and goals (feeling disabled, unfair judgment and exclusion, difficulties with academic achievement, limiting attainment and maintenance of life milestones), and establishing one's own pace (demarcating disease from life, determination to survive, taking limitations in their stride, embracing the positives, finding personal enrichment, relying on social or spiritual support). CONCLUSION: Children with CHD feel vulnerable and burdened by debilitating physical symptoms, unpredictable complications, and discrimination. Clinicians may support patients by sharing recognition of these profound psychosocial consequences. What is Known: * CHD is associated with difficulties in learning and attention, school absenteeism, decreased endurance, poor body image, and peer socialization * What is lesser known is how young patients cope with the symptoms, prognostic uncertainty, and treatment burden What is New: * We found that children are challenged by lifestyle restrictions, fear of invasive procedures, impaired body image, discrimination, and uncertainty about the future. Feelings of disempowerment are intensified by the unpredictability of disease progression * Thus, strategies to improve outcomes include improved patient education on disease and lifestyle management and partnership with school teachers and counselors for unique psychosocial support. PMID- 29327143 TI - Long-term control and predictors of seizures in intracranial meningioma surgery: a population-based study. AB - BACKGROUND: The aim of this retrospective study was to investigate the long-term seizure control and antiepileptic drug (AED) prescriptions, as well as identifying predictors of seizure(s) before and after surgery in a population based cohort of operated intracranial meningioma patients. METHODS: A total of 113 consecutive adult (> 18 years old) patients with newly diagnosed meningioma operated at the Karolinska University Hospital between 2006 and 2008 were included and followed up until the end of 2015. Data on seizure activity and AED prescriptions were obtained through chart review and telephone interview. Logistic regression and survival analysis were applied to identify risk factors for pre- and postoperative seizures. RESULTS: A total of 21/113 (18.6%) patients experienced seizures before surgery of which 8/21 (38.1%) went on to become seizure-free after surgery. Thirteen (14%) patients experienced new-onset seizures after surgery. The regression analysis revealed tumor diameter >= 3.5 cm as a risk factor for preoperative seizures (OR 3.83, 95% CI 1.14-12.87). Presence of headache (OR 0.19, 95% CI 0.05-0.76) and skull base tumor location (OR 0.14, 95% CI 0.04-0.44) decreased the risk of preoperative seizures. Postoperative seizures were associated with tumor diameter >= 3.5 cm (OR 2.65, 95% CI 1.06 6.62) and history of preoperative seizures (OR 3.50, 95% CI 1.55-7.90). CONCLUSION: Seizures are common before and after intracranial meningioma surgery. Approximately one third of patients with preoperative seizures become seizure free on long-term follow-up after surgery, while 14% experienced new-onset seizures after surgery. Larger tumor size, absence of headache, and non-skull base location were associated with preoperative seizures, while tumor size and preoperative seizures were associated with postoperative seizures. PMID- 29327145 TI - HLA-DR expression in neonates after cardiac surgery under cardiopulmonary bypass: a pilot study. AB - Monocyte HLA-DR expression has been reported as a marker of immunosuppression and a predictor of sepsis development. However, to date, there is no report on monocyte HLA-DR monitoring exclusively in neonates (< 28 days of life) who underwent cardiac surgery under cardiopulmonary bypass (CPB), which have a high risk of nosocomial infection. In this pilot study, we studied nine neonates with a diagnosis of congenital heart disease requiring surgery under CPB. There was a significant reduction in monocyte HLA-DR expression for the first two postoperative days, as compared to preoperatively (p = 0.004). Moreover, neonates who displayed an episode of NI had a dramatically lower HLA-DR expression at day 4, as compared to neonates without NI (4257 AB/c [2220-5895] vs 14,947 AB/c [9858 16,960]; p = 0.04). Our preliminary results could indicate that HLA-DR expression may be a useful biomarker of immunosuppression-induced secondary infection after CPB in neonates. PMID- 29327146 TI - Mid-term Outcome of 100 Consecutive Ross Procedures: Excellent Survival, But Yet to Be a Cure. AB - The Ross procedure offers excellent short-term outcome but the long-term durability is under debate. Reinterventions and follow-up of 100 consecutive patients undergoing Ross Procedure at our centre (1993-2011) were analysed. Follow-up was available for 96 patients (97%) with a median duration of 5.3 (0.1 17.1) years. Median age of the patient cohort was 15.2 (0.04-58.4) years with 76 males. 93% had underlying congenital aortic stenosis. Root replacement technique was applied in all. The most common valved conduits used for reconstruction of the right ventricular outflow tract were homografts (66 patients) and bovine jugular vein (ContegraR) graft (31 patients). Additional procedures included Ross Konno procedure (14%), resection of subaortic stenosis/myectomy (11%) and reduction plasty of the ascending aorta (25%). One patient died within the first 30 days (1%). Late deaths occurred in 4 patients (4%) 0.5-4.5 years postoperatively: causes included pulmonary hypertension due to endocardial fibroelastosis (2), subarachnoid haemorrhage (1) and sudden cardiac death (1). Five-year survival was 93.6 (95% CI 88.1-99.1)%. Moderate or severe aortic (autograft) regurgitation needing reoperation occurred in 8 patients with a 5 year freedom from autograft reoperation of 98.5 (95.6-100)%. Five-year freedom from reintervention (surgery or catheter based) on the right ventricular outflow tract conduit was 91.5 (85.5-96.5)%. Univariate predictors of this reinterventions were smaller graft size (p = 0.03) and use of a ContegraR graft (p = 0.04). Ross procedure can be performed with low mortality and good survival in the long term. Most of the reinterventions are related to the neo-right ventricular outflow tract and may be partly attributed to the lack of growth. While the Ross Procedure remains an invaluable option for aortic valve disease in children, new solutions for the neo-pulmonary valve as well as for the less often occurring problems on the autograft are needed. PMID- 29327147 TI - Post-operative Catheterization Interventions at the Site of Surgery: An Application of the CRISP Scoring System. AB - Catheter-based interventions in the early post-operative period are performed with caution due to concerns for increased procedural risk, particularly across fresh suture lines. The recently published CRISP scoring system provides prospective risk stratification based on pre-procedural criterion. In an effort to refine the assessment of risk in patients undergoing post-operative catheter based interventions, the predicted risk of an adverse event based on CRISP scores was compared to actual adverse event rates. A single-center, retrospective review of patients undergoing catheterization interventions within 6 weeks of cardiac surgery was conducted between Jan 2004 and Dec 2014. Patients who underwent dilation interventions across fresh suture lines (group 1) were compared to patients who underwent interventional procedures at other sites (group 2), and a CRISP score was calculated for all patients. Patients receiving only surveillance biopsies were excluded. Sixty-eight patients underwent 100 interventional procedures. Group 1 was composed of 44 patients receiving 64 interventions, while group 2 had 24 patients who underwent 36 interventions. Group 1 was comprised significantly more single ventricles and patients were smaller/younger. Group 1 had a significantly higher median CRISP score, but both groups were within Category 4. The rates of adverse events were similar between groups and comparable to predicted rates with the CRISP scoring system. Catheter-based interventions in the early post-operative period can be performed with no significant increase in the risk of serious adverse events when intervening across fresh suture lines. The CRISP scoring system can be a valuable tool in pre procedural counseling of high-risk post-operative patients. PMID- 29327149 TI - Gestational diabetes and risk of cardiovascular disease up to 25 years after pregnancy: a retrospective cohort study. AB - AIMS: The risk of cardiovascular disease in women with gestational diabetes is poorly understood. We sought to determine whether gestational diabetes increases the risk of cardiovascular disease more than two decades after pregnancy. METHODS: We carried out a retrospective cohort study of 1,070,667 women who delivered infants in hospitals within Quebec, Canada, between 1989 and 2013. We followed 67,356 women with gestational diabetes and 1,003,311 without gestational diabetes for a maximum of 25.2 years after the index delivery. The main outcome measures were hospitalization for ischemic heart disease, myocardial infarction, coronary angioplasty, coronary artery bypass graft, and other cardiovascular disorders. We used Cox regression to estimate hazard ratios (HR) and 95% confidence intervals (CI) comparing women with gestational diabetes to no gestational diabetes, adjusted for age, parity, socioeconomic deprivation, time period, and preeclampsia. RESULTS: Women with gestational diabetes had a higher cumulative incidence of hospitalization for cardiovascular disease 25 years after delivery (190.8 per 1000 women) compared with no gestational diabetes (117.8 per 1000 women). Gestational diabetes was associated with a higher risk of ischemic heart disease (HR 1.23, 95% CI 1.12-1.36), myocardial infarction (HR 2.14, 95% CI 1.15-2.47), coronary angioplasty (HR 2.23, 95% CI 1.87-2.65), and coronary artery bypass graft (HR 3.16, 95% CI 2.24-4.47). CONCLUSIONS: In this population of pregnant women, gestational diabetes was associated with an increased risk of heart disease 25 years after delivery. Women with gestational diabetes may merit closer monitoring for cardiovascular disease prevention after pregnancy. PMID- 29327148 TI - Autoantibodies against zinc transporter 8 are related to age and metabolic state in patients with newly diagnosed autoimmune diabetes. AB - AIMS: To assess the prevalence of ZnT8-ab and its correlation to other autoimmune markers and diabetic ketoacidosis occurrence in children and adults with T1DM onset. METHODS: The study included 367 patients (218 children; 149 adults) at the T1DM onset. Selected diabetes-related autoantibodies such as GAD-ab, IA2-ab, ZnT8 ab were tested before the initiation of insulin therapy. Diabetic ketoacidosis was defined as glucose concentration > 13.9 mmol/l, pH < 7.30, concentration of HCO3 < 15 mmol/l, presence of ketone bodies in the blood and urine. RESULTS: The autoantibodies pattern differs in both study groups. Children were mostly positive for two (37.8%) and three (49.5%) autoantibodies, whereas adults for one (32.2%) and two (30.7%). The most frequently detected autoantibodies in youth were ZnT8-ab (81.1%) and IA2-ab (80.7%), while in adults GAD-ab (74.8%). ZnT8-ab (p < 0.0001) titers were significantly higher in children, but adults had higher titer of GAD-ab (p < 0.0001) and IA2-ab (p < 0.0001). Children developed more frequently diabetic ketoacidosis (28.4 vs. 10.7%, p = 0.0002). ZnT8-ab (p = 0.002) and IA2-ab (p = 0.008) were reported mostly in individuals with ketoacidosis. A correlation between the number of positive antibodies and the severity of ketoacidosis was observed (Rs - 0.129 p = 0.014). ZnT8-ab were associated with a greater risk of ketoacidosis independent of gender, age group and the autoantibodies number [OR = 2.44 (95% CI 1.0-5.94), p = 0.04]. CONCLUSIONS: Children are at greater risk of ketoacidosis at the diagnosis of diabetes. ZnT8-ab and IA2-ab are commonly detected in children, while adults have frequently higher titer of GAD-ab. ZnT8-ab are associated with more acute diabetes onset. PMID- 29327150 TI - Levels of serum uric acid at admission for hypoglycaemia predict 1-year mortality. AB - AIMS: Hypoglycaemia represents a critical burden with clinical and social consequences in the management of diabetes. Serum uric acid (SUA) has been associated with cardiovascular diseases (CVD), but no conclusive findings are available nowadays in patients suffering from hypoglycaemia. We investigated whether SUA levels at the time of hypoglycaemia could predict all-cause mortality after 1-year follow-up. METHODS: In total, 219 patients admitted to the Emergency Department (ED) of Ospedale Policlinico S. Martino of Genoa (Italy) have been enrolled between January 2011 and December 2014. The primary endpoint of the study consisted in determining whether SUA levels at the time of ED admission could predict the occurrence of death after 1 year. RESULTS: The majority of patients were diabetic, especially type 2. CVD and chronic kidney disease were prevalent comorbidities. By a cut-off value obtained by the receiver operating characteristic curve analysis, a Kaplan-Meier analysis demonstrated that patients with SUA levels > 5.43 mg/dL were more prone to death after 1 year compared to those with lower SUA levels. The risk of death increased with high SUA levels both in the univariate and the multivariate models including estimated glomerular filtration rate, C-reactive protein, type of diabetes, and age-adjusted Charlson comorbidity index. CONCLUSIONS: SUA could be useful as a predictor of 1-year mortality in hypoglycaemic patients, irrespective of severe comorbidities notably increasing the risk of death in these frail patients. PMID- 29327151 TI - Impact of Admission Hypertension on Rates of Acute Kidney Injury in Intracerebral Hemorrhage Treated with Intensive Blood Pressure Control. AB - BACKGROUND: Current guidelines recommend that rapid systolic blood pressure (SBP) lowering to 140 mmHg may be considered in intracerebral hemorrhage (ICH) patients regardless of initial SBP. However, limited safety data exist in patients presenting with varying degrees of severe hypertension. The purpose of this study was to determine whether there was an increased risk of acute kidney injury (AKI) based upon degree of presentation hypertension in ICH patients whose blood pressure was reduced intensively. METHODS: This retrospective, cohort study evaluated ICH patients treated with intensive blood pressure control (SBP <=140 mmHg) who presented with three degrees of presentation hypertension: mild (SBP 141-179 mmHg), moderate (SBP 180-219 mmHg), and severe (SBP >= 220 mmHg). Univariate analysis of demographics variables, ICH severity, and factors known to impact AKI was conducted between the three groups. Post hoc testing was used to compare differences between specific groups, with a Bonferroni correction adjusting for multiple comparisons. Additionally, we conducted logistic regression analysis to determine whether baseline SBP group independently predicted AKI. RESULTS: We included 401 patients (177 with mild, 124 with moderate, and 100 with severe hypertension). There was a significant increase in the prevalence of AKI between groups, with the severe group experiencing the highest rate (p < 0.001). The presence of severe hypertension was also found to independently predict AKI development (odds ratio 2.6; p < 0.001). CONCLUSION: Our study observed higher rates of AKI in patients presenting with severe hypertension. Further research is needed to determine the most appropriate strategies for managing blood pressure in ICH patients presenting with higher SBP. PMID- 29327152 TI - The Prevalence and Impact of Status Epilepticus Secondary to Intracerebral Hemorrhage: Results from the US Nationwide Inpatient Sample. AB - BACKGROUND: Status epilepticus (SE) has been identified as a predictor of morbidity and mortality in many acute brain injury patient populations. We aimed to assess the prevalence and impact of SE after intracerebral hemorrhage (ICH) in a large patient sample to overcome limitations in previous small patient sample studies. METHODS: We queried the Nationwide Inpatient Sample for patients admitted for ICH from 1999 to 2011, excluding patients with other acute brain injuries. Patients were stratified into SE diagnosis and no SE diagnosis cohorts. We identified independent risk factors for SE and assessed the impact of SE on morbidity and mortality with multivariable logistic regression models. Logistic regression was used to evaluate the trend in SE diagnoses over time as well. RESULTS: SE was associated with significantly increased odds of both mortality and morbidity (odds ratios (OR) 1.18 [confidence intervals (CI) 1.01-1.39], and OR 1.53 [CI 1.22-1.91], respectively). Risk factors for SE included female sex (OR 1.17 [CI 1.01-1.35]), categorical van Walraven score (vWr 5-14: OR 1.68 [CI 1.41-2.01]; vWr > 14: OR 3.77 [CI 2.98-4.76]), sepsis (OR 2.06 [CI 1.58-2.68]), and encephalopathy (OR 3.14 [CI 2.49-3.96]). Age was found to be associated with reduced odds of SE (OR 0.97 [CI 0.97-0.97]). From 1999 to 2011, prevalence of SE diagnosis increased from 0.25 to 0.61% (p < 0.001). Factors associated with SE were female sex, medium and high risk vWr score, sepsis, and encephalopathy. Independent predictors associated with increased mortality from SE were increased age, pneumonia, myocardial infarction, cardiac arrest, and sepsis. CONCLUSIONS: SE is a significant, likely underdiagnosed, predictor of morbidity and mortality after ICH. Future studies are necessary to better identify which patients are at highest risk of SE to guide resource utilization. PMID- 29327153 TI - The Effect of Therapeutic Mild Hypothermia on Brain Microvascular Endothelial Cells During Ischemia-Reperfusion Injury. AB - BACKGROUND: To determine the cerebral protective effects of mild hypothermia (MH) on cerebral microcirculation. METHODS: We established ischemia-reperfusion (I/R) injury and MH treatment models with rat brain microvascular endothelial cells (RBMECs) in vitro and examined the apoptotic changes. The cultured RBMECs were randomly divided into the control group, I/R group, and MH group, which was further divided into two subgroups: intra-ischemia hypothermia (IIH) and post ischemia hypothermia (PIH). Cell morphological changes were assessed using fluorescence microscopy. Apoptotic rates were obtained by flow cytometry. Expressions of caspase-3, Bax, and Bcl-2 were analyzed by Western blot. RESULTS: I/R injury in vitro induced apoptosis of RBMECs. The apoptotic rates in the control group, I/R group, and MH group were 0.13, 19.04, and 13.13%, respectively (P < 0.01). Compared with the I/R group, the MH group showed a significant decrease in the number of apoptotic cells, mainly in stage I apoptotic cells (P < 0.0083). The caspase-3 and Bax expressions were significantly enhanced (P < 0.05) in RBMECs after I/R injury, while substantial decreases in Bcl-2 expression were noted (P < 0.05). Following MH intervention, the increase in caspase-3 and Bax expression was suppressed (P < 0.05), while Bcl-2 expression significantly increased. The apoptotic rates or protein expressions between the two subgroups were not different significantly (P > 0.05). CONCLUSIONS: These results indicate that MH could inhibit RBMEC apoptosis by preventing pro-apoptotic cells and early apoptotic cells from progressing to intermediate and advanced stages. This may be due to the effect of MH on I/R-induced apoptotic gene expression changes. PMID- 29327154 TI - Effect of Synthesis Method of La1 - xSr x MnO3 Manganite Nanoparticles on Their Properties. AB - Nanoparticles of lanthanum-strontium manganite were synthesized via different methods, namely, sol-gel method, precipitation from non-aqueous solution, and precipitation from reversal microemulsions. It was shown that the use of organic compounds and non-aqueous media allowed significantly decreasing of the crystallization temperature of nanoparticles, and the single-phased crystalline product was formed in one stage. Morphology and properties of nanoparticles depended on the method and conditions of the synthesis. The heating efficiency directly depended on the change in the magnetic parameters of nanoparticles, especially on the magnetization. Performed studies showed that each of these methods of synthesis can be used to obtain weakly agglomerated manganite nanoparticles; however, particles synthesized via sol-gel method are more promising for use as hyperthermia inducers.PACS: 61.46.Df 75.75.Cd 81.20. Fw. PMID- 29327155 TI - Downregulation of miR-503 contributes to the development of drug resistance in ovarian cancer by targeting PI3K p85. AB - OBJECTIVE: Cisplatin is an important chemotherapeutic agent frequently used in the treatment of ovarian cancer. However, resistance to cisplatin is an obstacle to the treatment of ovarian cancer. Recently, many studies have demonstrated that microRNAs (miRNAs) are involved in the drug resistance of ovarian cancer cells. In this study, we explored the role of miR-503 in cisplatin-resistant ovarian cancer. MATERIALS AND METHODS: To investigate the relationship between miR-503 expression and the sensitivity of ovarian cancer cells to cisplatin, the cells were transfected with miR-503 mimics/inhibitors. The relative expression of miR 503 RNA and its targeted gene PI3K mRNA were detected by real-time PCR (RT-PCR). Western blot was used to measure relevant protein levels. Flow cytometry and CCK 8 assay were used to analyze cell proliferation and apoptosis. RESULTS: MiR-503 expression was significantly downregulated in cisplatin-resistant ovarian cancer cell line SKOV3/DDP compared with parental SKOV3. Over-expression and knock-down of miR-503 partially regulated apoptotic activity and changed the cisplatin resistance of ovarian cancer cells. In exploring the underlying mechanisms of miR 503 in ovarian cancer cells' resistance to cisplatin, we found that miR-503 can directly target PI3K p85 and participates in the regulation of the PI3K/Akt signaling pathway. In vivo, miR-503 agomirs combined with cisplatin treatment significantly reduced the growth of tumors compared with cisplatin alone. CONCLUSIONS: Our data suggest that miR-503 might be a sensitizer to cisplatin treatment in ovarian cancer by targeting PI3K p85, thus giving a new insight into developing therapeutic strategies to overcome cisplatin resistance in ovarian cancer. PMID- 29327156 TI - Effectiveness of celecoxib for pain relief and antipyresis in second trimester medical abortions with misoprostol: a randomized controlled trial. AB - PURPOSE: To evaluate the effectiveness of celecoxib for pain relief and antipyresis during second trimester abortion using sublingual misoprostol. METHODS: Fifty-six pregnant women of gestational age 14-24 weeks were randomly assigned in a double-blind randomized controlled trial to receive 400 mg of celecoxib or placebo just before sublingual administration of misoprostol 400 ug every 6 h. Pain and body temperature (BT) were assessed every 1 h until the abortion or 24 h after the first dose of misoprostol. Pain was assessed using a 10-cm Visual Analog Scale (VAS). BT was measured with an infrared thermometer. RESULTS: From January 2016 through September 2016, 28 patients were randomized into each study group. The mean VAS pain score at the completion of the abortion in the celecoxib group was significantly lower than in the placebo group (4.6 +/- 2.8 vs. 7.3 +/- 2.2) (p = 0.012). But 42.9% of patients in both groups experienced severe pain and needed equivalent amounts of morphine rescue. The overall mean BT in the celecoxib group was significantly lower than in the placebo group [- 0.09 (SD = 0.04)] (p = 0.017). The mean BTs at 1, 2 and 6 h after each repeated dose of misoprostol in the celecoxib group were also significantly lower than in the placebo group. CONCLUSIONS: Single-dose 400 mg celecoxib had an inadequate beneficial effect on pain relief but significant antipyretic effect during second trimester abortions using sublingual misoprostol. PMID- 29327157 TI - Clinicopathological and prognostic significance of blood microvessel density in endometrial cancer: a meta-analysis and subgroup analysis. AB - OBJECTIVE: The study aimed to systematically review the association between angiogenesis and clinicopathological characteristics and its prognostic value in patients with endometrial cancer. METHODS: Eligible studies were searched in PubMed, Embase, China National Knowledge Infrastructure, and Wanfang database. Studies that assessed blood microvessel density (BMVD) and correlated with clinicopathological features and/or overall survival (OS) were included. Geometric mean values and hazard ratio with 95% confidence interval were pooled to examine the risk or hazard association. Subgroup analyses were conducted based on populations, BMVD criteria, BMVD markers, and type of survival analysis. RESULTS: A total of 29 studies of 2517 patients were included. BMVD was associated with depth of myometrial invasion (MI) [standard mean difference (SMD) 1.24; 95% CI 0.53-1.95; P = 0.0006], lymphovascular space invasion (LVSI) (SMD 0.75; 95% CI 0.3-1.21; P = 0.001), and lymph node metastasis (LNM) (SMD 0.99; 95% CI 0.46-1.52; P = 0.0003). BMVD was also significantly associated with poor OS (HR 2.65; 95% CI 1.86-3.77; P < 0.00001). The association remained significant in the subgroups Asian population, BMVD criteria using Weidner method, BMVD marker CD34 for MI, LVSI, and LNM, CD105 for MI, and factor VIII for MI and LNM, respectively. For OS, either Asian or non-Asian population, BMVD criteria using Weidner or non-Weidner method, BMVD marker CD31, or factor VIII antibody and analysis using univariate or multivariate were all significantly associated. CONCLUSIONS: BMVD was associated with deeper MI, positive LVSI, positive LNM, and poor OS in patients with endometrial cancer. Therefore, angiogenesis is a useful measure for poor clinicopathological outcomes and prognosis in patients with endometrial cancer. PMID- 29327158 TI - Comparison of Warfarin Requirements in Post-cardiac Surgery Patients: Valve Replacement Versus Non-valve Replacement. AB - INTRODUCTION: Anticoagulation with warfarin affects approximately 140,000 post cardiac surgery patients every year, yet there remains limited published data in this patient population. Dosing remains highly variable due to intrinsic risk factors that plague cardiac surgery candidates and a lack of diverse literature that can be applied to those who have undergone a cardiac surgery alternative to heart valve replacement (HVR). In the present study, our aim was to compare the warfarin requirements between HVR and non-HVR patients. METHODS: This was a single-center, retrospective study of post-cardiac surgery patients initiated on warfarin at Mayo Clinic Hospital, Rochester, from January 1st, 2013 to October 31st, 2016. The primary outcome was the maintenance warfarin dose at the earliest of discharge or warfarin day 10 between patients with HVR and non-HVR cardiac surgeries. RESULTS: A total of 683 patients were assessed during the study period: 408 in the HVR group and 275 in the non-HVR group. The mean warfarin maintenance doses in the HVR and non-HVR groups were 2.55 mg [standard deviation (SD) 1.52] and 2.43 mg (SD 1.21), respectively (adjusted p = 0.65). A multivariable analysis was performed to adjust for gender, age, body mass index and drug interactions. CONCLUSIONS: This was the largest study to evaluate warfarin dose requirements in post-cardiac surgery patients and is the first to compare warfarin requirements between HVR and non-HVR patients during the immediate post-operative period. Both groups had similar warfarin requirements, which supports expanding the initial warfarin dosing recommendations of the 9th edition Chest guideline to include non-HVR patients as well as HVR patients. PMID- 29327159 TI - Efficacy and safety of third-line molecular-targeted therapy in metastatic renal cell carcinoma resistant to first-line vascular endothelial growth factor receptor tyrosine kinase inhibitor and second-line therapy. AB - BACKGROUND: The number of studies evaluating the efficacy and safety of third line molecular-targeted therapy for metastatic renal cell carcinoma (mRCC) is limited. METHODS: The data for 48 patients with disease progression after first line vascular endothelial growth factor receptor tyrosine kinase inhibitor (TKI) and second-line targeted therapy were evaluated. Patients with prior cytokine therapy were excluded. Overall survival (OS) after first- and second-line therapy initiation was compared between patients with and without third-line therapy. In addition, dose-limiting toxicities (DLTs) were evaluated. RESULTS: Twenty-two of 48 patients (45.8%) received third-line therapy, and TKI and mammalian target of rapamycin inhibitor were each administered in 11 patients (50%). Patients with third-line therapy had significantly longer median OS after first-line therapy (26.6 vs. 14.6 months, p = 0.0010) and second-line therapy (18.2 vs. 7.4 months, p < 0.0001) compared to those without third-line therapy. Multivariate analysis showed that the use of third-line therapy following second-line therapy was an independent prognosticator for longer OS (hazard ratio 0.29, 95% confidence interval 0.14-0.58, p = 0.0005). The median progression-free survival and OS after third-line therapy was 2.76 and 8.71 months, respectively. Although a high frequency of DLTs was observed (n = 10, 45.5%), the frequencies were similar among the sequential therapies. CONCLUSIONS: Third-line therapy has a beneficial therapeutic effect in patients with mRCC that is resistant to previous therapies. However, there is a need to evaluate in detail the high frequency of adverse events, including DLTs. PMID- 29327160 TI - Differences in histological features and PD-L1 expression between sporadic microsatellite instability and Lynch-syndrome-associated disease in Japanese patients with colorectal cancer. AB - BACKGROUND: The field of immunotherapy has recently focused on cancers with microsatellite instability (MSI). These cancers include both Lynch-syndrome associated tumors, which are caused by mismatch repair (MMR) germline mutations, and sporadic MSI tumors, which are mainly attributed to MLH1 promoter methylation. The present study aimed to clarify differences in the histological and PD-L1 expression profiles between these two types of MSI cancers in Japanese patients. METHODS: Among 908 cases of colorectal cancer treated via surgical resection from 2008 to 2014, we identified 64 MSI cancers, including 36 sporadic MSI and 28 Lynch-syndrome-associated cancers, using a BRAF V600E mutation analysis and MLH1 methylation analysis. Of the latter subgroup, 21 (75%) harbored MMR germline mutations. RESULTS: The following were more frequent with sporadic MSI than with Lynch syndrome associated cancers: poor differentiation (50.0 vs. 7.1%, P = 0.0002), especially solid type (30.6 vs. 3.6%, P = 0.0061); medullary morphology (19.4 and 0%, P = 0.015), Crohn-like lymphoid reaction (50.0 vs. 25.0%, P = 0.042), and PD-L1 expression (25.0 vs. 3.6%, P = 0.034). However, the groups did not differ in terms of the mean invasive front and intratumoral CD8 positive cell densities. In a logistic regression analysis, PD-L1 expression correlated with poor differentiation (odds ratio: 7.65, 95% confidence interval: 1.55-37.7, P = 0.012), but not with the difference between sporadic MSI cancer and Lynch-syndrome-associated cancer (odds ratio: 4.74, 95% confidence interval: 0.50-45.0, P = 0.176). CONCLUSIONS: Therefore, compared with Lynch-syndrome associated cancers, sporadic MSI cancers are more frequently solid, poorly differentiated medullary cancers that express PD-L1. PMID- 29327161 TI - Effects of channel blocking on information transmission and energy efficiency in squid giant axons. AB - Action potentials are the information carriers of neural systems. The generation of action potentials involves the cooperative opening and closing of sodium and potassium channels. This process is metabolically expensive because the ions flowing through open channels need to be restored to maintain concentration gradients of these ions. Toxins like tetraethylammonium can block working ion channels, thus affecting the function and energy cost of neurons. In this paper, by computer simulation of the Hodgkin-Huxley neuron model, we studied the effects of channel blocking with toxins on the information transmission and energy efficiency in squid giant axons. We found that gradually blocking sodium channels will sequentially maximize the information transmission and energy efficiency of the axons, whereas moderate blocking of potassium channels will have little impact on the information transmission and will decrease the energy efficiency. Heavy blocking of potassium channels will cause self-sustained oscillation of membrane potentials. Simultaneously blocking sodium and potassium channels with the same ratio increases both information transmission and energy efficiency. Our results are in line with previous studies suggesting that information processing capacity and energy efficiency can be maximized by regulating the number of active ion channels, and this indicates a viable avenue for future experimentation. PMID- 29327162 TI - Explication of a Behavioral Health-Primary Care Integration Learning Collaborative and Its Quality Improvement Implications. AB - In an effort to tackle fragmented care in the US healthcare delivery system, we explored the use of learning collaborative (LC) to advance integration of behavioral health and primary care as one of the potential solutions to a holistic approach to the delivery of quality healthcare to individuals with physical and mental illness. How a diverse group of primary care and behavioral health providers formed a Community of Practice (CoP) with a common purpose and shared vision to advance integrated care using a LC approach is described. An account of their learning experience, key components of their quality improvement, practice changes, clinical processes, and improved outcomes are explained. This paper aims at describing the history, creative design, processes, roles of the CoP and impact of the LC on the advancement of integrated care practice and quality improvements for further exploration and replications. PMID- 29327163 TI - Manipulating the Phytic Acid Content of Rice Grain Toward Improving Micronutrient Bioavailability. AB - Myo-inositol hexaphosphate, also known as phytic acid (PA), is the most abundant storage form of phosphorus in seeds. PA acts as a strong chelator of metal cations to form phytate and is considered an anti-nutrient as it reduces the bioavailability of important micronutrients. Although the major nutrient source for more than one-half of the global population, rice is a poor source of essential micronutrients. Therefore, biofortification and reducing the PA content of rice have arisen as new strategies for increasing micronutrient bioavailability in rice. Furthermore, global climate change effects, particularly rising atmospheric carbon dioxide concentration, are expected to increase the PA content and reduce the concentrations of most of the essential micronutrients in rice grain. Several genes involved in PA biosynthesis have been identified and characterized in rice. Proper understanding of the genes related to PA accumulation during seed development and creating the means to suppress the expression of these genes should provide a foundation for manipulating the PA content in rice grain. Low-PA rice mutants have been developed that have a significantly lower grain PA content, but these mutants also had reduced yields and poor agronomic performance, traits that challenge their effective use in breeding programs. Nevertheless, transgenic technology has been effective in developing low-PA rice without hampering plant growth or seed development. Moreover, manipulating the micronutrient distribution in rice grain, enhancing micronutrient levels and reducing the PA content in endosperm are possible strategies for increasing mineral bioavailability. Therefore, a holistic breeding approach is essential for developing successful low-PA rice lines. In this review, we focus on the key determinants for PA concentration in rice grain and discuss the possible molecular methods and approaches for manipulating the PA content to increase micronutrient bioavailability. PMID- 29327164 TI - Incremental predictive value of carotid arterial strain in patients with stroke. AB - Although increased carotid intima-media thickness (IMT) is a well-known risk factor for stroke, carotid IMT alone is not sufficient for risk stratification. The assessment of arterial properties using velocity vector imaging (VVI) represents a new method for quantifying structural changes. We sought to investigate the characteristics and the clinical value of carotid arterial mechanics using VVI in patients with stroke. Fifty male patients (55 +/- 5 years) with stroke, 30 healthy age-matched volunteers (54 +/- 8 years), and 30 healthy young male volunteers (29 +/- 5 years) were evaluated. The peak circumferential strain, strain rate, and the standard deviation of the time to peak strain and strain rate, representing the synchronicity of the arterial expansion, were analyzed using VVI of the left common carotid artery. The circumferential strain and strain rate significantly decreased with age, and patients with stroke showed the lowest degree of strain and strain rate compared with healthy age-matched volunteers. In addition, patients with stroke showed decreased strain and strain rate even in participants with a normal carotid IMT (< 0.8 mm). Although carotid IMT did not improve the incremental predictive value of stroke over that of multiple clinical risk factors (diabetes mellitus, hypertension, coronary artery disease, smoking), adding carotid arterial strain and strain rate provided an incremental predictive value over both multiple risk factors and carotid IMT for stroke. Along with assessment of conventional risk factors, VVI analysis could provide improved risk stratification for stroke. PMID- 29327165 TI - Measurement of cardiac valve and aortic blood flow velocities in stroke patients: a comparison of 4D flow MRI and echocardiography. AB - 4D flow MRI is an emerging technique that allows quantification of 3D blood flow in vivo. However, comparisons with methods of blood velocity quantification used in clinical routine are sparse. Therefore, we compared velocity quantification using 4D flow MRI with transthoracic and transesophageal echocardiography at the mitral and aortic valves and the aorta. Forty-eight stroke patients (age 67.3 +/- 15.0 years) were examined by 4D flow MRI. Blood flow velocities were assessed using standardized 2D analysis planes positioned in the mitral valve (MV), aortic valve (AV), ascending aorta (AAo), and descending aorta (DAo) and were compared with echocardiography. MRI showed moderate-high correlations of systolic velocity values for the MV (r = 0.67, p < 0.001), AV (r = 0.77, p < 0.001), AAo (r = 0.93, p < 0.001), and DAo (r = 0.76, p < 0.001) along with moderate-high intraclass correlation-coefficients: MV 0.79 (95% CI 0.62, 0.88), AV 0.86 (95% CI 0.75, 0.92), AAo 0.96 (95% CI 0.93, 0.98), and DAo 0.83 (95% CI 0.70, 0.90). However, MRI underestimated absolute systolic blood flow velocities compared with echocardiography by 8.6% for the MV (p = 0.07), 3.1% for the AV (p = 0.48), 10.7% for the AAo (p = 0.09), and 15.0% for the DAo (p = 0.01). Blood flow velocities obtained using 4D flow MRI and echocardiography at the MV, AV, and the ascending and DAo showed moderate to high correlations. Underestimation of absolute velocity values by MRI was low. Thus, 4D flow MRI seems ideally suited to comprehensively assess cardiac and aortic pathologies and related hemodynamic changes in future studies. PMID- 29327166 TI - Loneliness in psychosis: a systematic review. AB - PURPOSE: The aim of the review is to understand the relationships between loneliness and related psychological and social factors in individuals with psychosis. Loneliness is poorly understood in people with psychosis. Given the myriad of social challenges facing individuals with psychosis, these findings can inform psychosocial interventions that specifically target loneliness in this vulnerable group. METHODS: We adhered to the PRISMA guidelines and systematically reviewed empirical studies that measured loneliness either as a main outcome or as an associated variable in individuals with psychosis. RESULTS: A total of ten studies examining loneliness in people diagnosed with a psychotic disorder were examined. Heterogeneity in the assessment of loneliness was found, and there were contradictory findings on the relationship between loneliness and psychotic symptomatology. In individuals with psychosis, loneliness may be influenced by psychological and social factors such as increased depression, psychosis, and anxiety, poor social support, poor quality of life, more severe internalised stigma and perceived discrimination, and low self-esteem. CONCLUSIONS: The relationship between loneliness and psychosis remains poorly understood due to a lack of rigorous studies. Although having strong social relationships is crucial to facilitate recovery from serious mental illness, psychosocial interventions that specifically target loneliness in individuals with psychosis are lacking and sorely needed. Interventions targeting loneliness in those with psychosis will also need to account for additional barriers associated with psychosis (e.g., social skill deficits, impoverished social networks, and negative symptoms). PMID- 29327167 TI - Does laparoscopic intracorporeal ileocolic anastomosis decreases surgical site infection rate? A propensity score-matched cohort study. AB - AIM: Foreshortened mesentery or thick abdominal wall constitutes a rationale for laparoscopic intracorporeal ileocolic anastomoses (ICA). The aim of this study was to compare intracorporeal to extracorporeal ICA in terms of surgical site infections in patients with Crohn's ileitis and overweight patients with right colon tumors. METHOD: This was a prospective propensity score-matched cohort study enrolling consecutive patients with Crohn's terminal ileitis and overweight patients with right colon tumors undergoing elective laparoscopic right colon resection with intracorporeal or extracorporeal ICA. Propensity score matching with a 1:1 ratio was employed to compare diagnosis-matched patients for age, BMI, ASA, and previous abdominal surgery. RESULTS: Overall, 453 patients were enrolled: 233 intracorporeal vs. 220 extracorporeal. Propensity score matching left 195 intracorporeal and 195 extracorporeal patients comparable for age (p = 0.294), gender (p = 0.683), ASA (p = 0.545), BMI (p = 0.079), previous abdominal surgery (p = 0.348), and diagnosis (p = 0.301). Conversion rates (5.1 vs. 3.6%; p = 0.457) and intraoperative complications (1 vs. 2.1%; p = 0.45) were similar. Overall morbidity (5.1 vs. 12.8%; p = 0.008) and re-intervention rates (3.1 vs. 8.7%; p = 0.029) were significantly higher in extracorporeal patients. Anastomotic leak rates (0.5 vs. 1.5%; p = 0.623) did not differ. Incisional SSI rate was significantly higher in extracorporeal patients (p = 0.01). CONCLUSION: Laparoscopic intracorporeal ICA reduced incisional SSI rates as compared to its extracorporeal counterpart. PMID- 29327168 TI - Social Media Social Comparison of Ability (but not Opinion) Predicts Lower Identity Clarity: Identity Processing Style as a Mediator. AB - Social comparison on social media has received increasing attention, but most research has focused on one type of social comparison and its psycho-emotional implications. Little is known about how different types of social comparison influence youth's identity development. Drawing on the theories of identity processing styles and social comparison, we examined how two different forms of social comparison on social media related to three identity processing styles, which in turn predicted youth's global self-esteem and identity clarity. We surveyed 219 college freshmen (Mage = 18.29; 74% female) once in the Fall and once in the Spring. Social comparison of ability on social media was related to concurrent diffuse-avoidant identity processing style, which predicted lower identity clarity months later. In contrast, social comparison of opinion on social media did not influence college freshmen's global self-esteem and identity clarity through identity processing styles. The findings clarified the implications of online social comparison for youth's identity development. PMID- 29327169 TI - Passive stiffness of monoarticular lower leg muscles is influenced by knee joint angle. AB - PURPOSE: While several studies demonstrated the occurrence of intermuscular mechanical interactions, the physiological significance of these interactions remains a matter of debate. The purpose of this study was to quantify the localized changes in the shear modulus of the gastrocnemius lateralis (GL), monoarticular dorsi- and plantar-flexor muscles induced by a change in knee angle. METHOD: Participants underwent slow passive ankle rotations at the following two knee positions: knee flexed at 90 degrees and knee fully extended. Ultrasound shear wave elastography was used to assess the muscle shear modulus of the GL, soleus [both proximally (SOL-proximal) and distally (SOL distal)], peroneus longus (PERL), and tibialis anterior (TA). This was performed during two experimental sessions (experiment I: n = 11; experiment II: n = 10). The shear modulus of each muscle was compared between the two knee positions. RESULTS: The shear modulus was significantly higher when the knee was fully extended than when the knee was flexed (P < 0.001) for the GL (averaged increase on the whole range of motion: + 5.8 +/- 1.3 kPa), SOL distal (+ 4.5 +/- 1.5 kPa), PERL (+ 1.1 +/- 0.7 kPa), and TA (+ 1.6 +/- 1.0 kPa). In contrast, a lower SOL-proximal shear modulus (P < 0.001, - 5.9 +/- 1.0 kPa) was observed. CONCLUSION: As the muscle shear modulus is linearly related to passive muscle force, these results provide evidence of a non-negligible intermuscular mechanical interaction between the human lower leg muscles during passive ankle rotations. The role of these interactions in the production of coordinated movements requires further investigation. PMID- 29327170 TI - The effects of a single session of spinal manipulation on strength and cortical drive in athletes. AB - PURPOSE: The primary purpose of this study was to investigate whether a single session of spinal manipulation (SM) increases strength and cortical drive in the lower limb (soleus muscle) of elite Taekwondo athletes. METHODS: Soleus-evoked V waves, H-reflex and maximum voluntary contraction (MVC) of the plantar flexors were recorded from 11 elite Taekwondo athletes using a randomized controlled crossover design. Interventions were either SM or passive movement control. Outcomes were assessed at pre-intervention and at three post-intervention time periods (immediate post, post 30 min and post 60 min). A multifactorial repeated measures ANOVA was conducted to assess within and between group differences. Time and session were used as factors. A post hoc analysis was carried out, when an interactive effect was present. Significance was set at p <= 0.05. RESULTS: SM increased MVC force [F(3,30) = 5.95, p < 0.01], and V-waves [F(3,30) = 4.25, p = 0.01] over time compared to the control intervention. Between group differences were significant for all time periods (p < 0.05) except for the post60 force measurements (p = 0.07). CONCLUSION: A single session of SM increased muscle strength and corticospinal excitability to ankle plantar flexor muscles in elite Taekwondo athletes. The increased MVC force lasted for 30 min and the corticospinal excitability increase persisted for at least 60 min. PMID- 29327171 TI - Efficacy of adjuvant radiotherapy in the intracranial hemangiopericytoma. AB - We retrospectively evaluated an efficacy of adjuvant radiotherapy (RT) in the intracranial hemangiopericytoma (HPC) and analyzed prognostic factors influencing treatment outcomes. Among 49 patients diagnosed as localized intracranial HPC between 1995 and 2016, 31 patients received adjuvant RT after surgery; 26 with fractionated RT and 5 with stereotactic radiosurgery using Gamma Knife. After gross total resection (GTR) (n = 32) and subtotal resection (STR) (n = 17), histopathological grade was confirmed to be grade II (n = 9) or grade III (n = 40). The median follow-up period was 50 months (range 3-216 months). The local recurrence was defined as intracranial relapse within 15 mm and regional recurrence as beyond 15 mm from the margin of surgical bed. The 10-year overall survival (OS) and progression-free survival (PFS) were 69.9 and 34.4%, respectively. The 10-year local, regional, and distant failure-free rates were 56.6, 88.2, and 73.3%, respectively. Local tumor control was better with GTR followed by RT than GTR alone (p = 0.056), while there was no difference in OS. Local tumor control and OS after STR plus RT were equivalent to those after GTR alone. There were no differences in distant metastasis-free survival (DMFS) among GTR plus RT, GTR alone, and STR plus RT. Tumor volume > 40 cm3 was associated with poor PFS (p = 0.024). The local tumor recurrence was reduced by adjuvant RT after surgery. But OS or DMFS was not improved with adjuvant RT. PFS was better in the tumor with small volume at diagnosis. PMID- 29327172 TI - Identifying candidates for gamma knife radiosurgery among elderly patients with brain metastases. AB - We investigated the outcomes of gamma knife radiosurgery (GKRS) for elderly patients (>= 65 years) with brain metastases, and identified survival-associated factors. We retrospectively analyzed data from 115 patients treated with GKRS for 1-15 brain metastases. The median patient age was 72 years; most primary tumors were pulmonary (n = 83). The mean lesion volume was 2.1 +/- 4.8 mL. A mean dose of 19.3 Gy was delivered to the mean 63.9% isodose line. The median overall survival (OS) was 5.3 months (95% confidence interval [CI] 3.5-7.1). During follow-up (median, 5.1 months), 91 patients died of primary cancer progression while 1 died of unknown causes. The 6- and 12-month local control rates were 94.9 and 88.1%, respectively. On multivariate analysis, female sex (p = 0.005, hazard ratio [HR] 0.533, 95% CI 0.343-0.827) and a controlled primary tumor (p < 0.001, HR 0.328, 95% CI 0.180-0.596) were significantly favorable prognostic factors. Of non-small cell lung cancer patients with EGFR mutations, 76.5% were women (p = 0.005). The median OS of EGFR-mutant and EGFR-wildtype patients were 19.1 and 4.7 months, respectively (p = 0.080). Brain metastases < 3 mL showed better local control rates after GKRS (p = 0.005). GKRS produces favorable outcomes in women with brain metastases who are >= 65 years and have controlled primary tumors. Such patients are therefore suitable candidates for GKRS. PMID- 29327173 TI - Personality traits, patient-centered health status and prognosis of brain tumor patients. AB - Personality traits can be related to prognosis of cancer patients. The study aimed to evaluate the association of big-five personality dimensions with emotional and cognitive health status, and prognosis of brain tumor patients. A total of 178 patients admitted for brain tumor surgery were evaluated for personality traits (Tem item Personality Inventory), depressive/anxiety symptoms (Hospital Anxiety and Depression Scale or HADS) and cognitive functioning (Mini Mental State Examination or MMSE) on admission. One-hundred and forty-three patients were re-evaluated (HADS and MMSE scales) at hospital discharge. Follow up continued until November, 2015. Thirty-five patients were diagnosed with high grade glioma, 15 with low-grade glioma and 128 with benign brain tumors (meningioma, pituitary adenoma and vestibular schwannoma). In multivariate regression analyses adjusted for age, gender, past brain tumor treatment, psychiatric histories and medication use, and education, greater TIPI Extroversion score was associated with greater admission MMSE score (beta = 0.159); TIPI-Emotional stability score, with lower HADS-Depression and HADS Anxiety scores on admission (beta = - 0.407 and beta = - 0.404, respectively) and at discharge (beta = - 0.404 and beta = - 0.319, respectively); and greater TIPI Openness score, with lower admission HADS-D score (beta = - 0.255, p = 0.001). In benign brain tumor patients, greater TIPI-Openness score was associated with reduced mortality risk [HR = 0.554 95% CI (0.376-0.814) p = 0.003)] independently from age, gender and histological diagnosis. Personality traits were not associated with survival of high-grade and low-grade glioma patients. Emotional stability and openness are associated with lower depressive/anxiety symptom severity, and extroversion with better cognitive functioning independently from demographic and clinical risk factors. Openness predicts lower mortality risk of low-grade/benign brain tumor patients. PMID- 29327174 TI - Localized targeted antiangiogenic drug delivery for glioblastoma. AB - Systemic delivery of antiangiogenic agents has been ineffective in improving the overall survival of patients with both primary and recurrent glioblastoma, in part due to dose-limiting toxicities. With the development of new and efficient localized delivery methods and vehicles, an otherwise lethal dose of antiangiogenic chemotherapy can be used to treat tumors while minimizing systemic side effects. Current in-vitro and in-vivo animal studies have shown promising results that encourage the pursuit towards human clinical trials for localized antiangiogenic treatment in the near future. PMID- 29327175 TI - MicroRNA-30c as a novel diagnostic biomarker for primary and secondary B-cell lymphoma of the CNS. AB - Primary lymphomas of the central nervous system (PCNSL) are highly aggressive tumors affecting exclusively the CNS, meninges, and eyes. PCNSL must be separated from secondary spread of systemic lymphoma to the CNS (SCNSL), which may occur at diagnosis or relapse of systemic lymphomas. At present, there are no valid methods to distinguish PCNSL from SCNSL based on tumor biopsy because of similar histological presentation. However, SCNSL and PCNSL are different in terms of prognosis and adequate therapy protocols. MicroRNA expression profiles of CSF samples collected from SCNSL and PCNSL patients were compared using microRNA arrays. MiR-30c revealed the largest differential expression and was selected for validation by RT-PCR on 61 CSF samples from patients with PCNSL and 14 samples from SCNSL. MiR-30c was significantly increased in patients with SCNSL compared to PCNSL (p < 0.001). MiR-30c levels in CSF enabled the differentiation of patients with PCNSL from SCNSL with an area under the curve (AUC) of 0.86, with a sensitivity of 90.9% and a specificity of 85.5%. Our data suggest that miR-30c detected in the CSF can serve as biomarker for distinction between PCNSL and SCNSL. The validation in a larger cohort is needed. With respect to its function, miR-30c may facilitate lymphoma cells to engraft into CNS by interaction with CELSR3 gene that controls the function of ependymal cilia and, thus, affects the circulation of CSF. PMID- 29327177 TI - Influence of sampling frequency and load calculation methods on quantification of annual river nutrient and suspended solids loads. AB - Better management of water quality in streams, rivers and lakes requires precise and accurate estimates of different contaminant loads. We assessed four sampling frequencies (2 days, weekly, fortnightly and monthly) and five load calculation methods (global mean (GM), rating curve (RC), ratio estimator (RE), flow stratified (FS) and flow-weighted (FW)) to quantify loads of nitrate-nitrogen (NO3--N), soluble inorganic nitrogen (SIN), total nitrogen (TN), dissolved reactive phosphorus (DRP), total phosphorus (TP) and total suspended solids (TSS), in the Manawatu River, New Zealand. The estimated annual river loads were compared to the reference 'true' loads, calculated using daily measurements of flow and water quality from May 2010 to April 2011, to quantify bias (i.e. accuracy) and root mean square error 'RMSE' (i.e. accuracy and precision). The GM method resulted into relatively higher RMSE values and a consistent negative bias (i.e. underestimation) in estimates of annual river loads across all sampling frequencies. The RC method resulted in the lowest RMSE for TN, TP and TSS at monthly sampling frequency. Yet, RC highly overestimated the loads for parameters that showed dilution effect such as NO3--N and SIN. The FW and RE methods gave similar results, and there was no essential improvement in using RE over FW. In general, FW and RE performed better than FS in terms of bias, but FS performed slightly better than FW and RE in terms of RMSE for most of the water quality parameters (DRP, TP, TN and TSS) using a monthly sampling frequency. We found no significant decrease in RMSE values for estimates of NO3-N, SIN, TN and DRP loads when the sampling frequency was increased from monthly to fortnightly. The bias and RMSE values in estimates of TP and TSS loads (estimated by FW, RE and FS), however, showed a significant decrease in the case of weekly or 2-day sampling. This suggests potential for a higher sampling frequency during flow peaks for more precise and accurate estimates of annual river loads for TP and TSS, in the study river and other similar conditions. PMID- 29327176 TI - How to Use a Graft in Irreparable Rotator Cuff Tears: A Literature Review Update of Interposition and Superior Capsule Reconstruction Techniques. AB - PURPOSE OF REVIEW: To introduce the challenges in addressing irreparable rotator cuff tears and examine the surgical options, specifically interposition grafting and superior capsule reconstruction. RECENT FINDINGS: Interposition grafting of rotator cuff tears shows promising results in reducing pain and improving function postoperatively and one study demonstrated that it performs significantly better than partial repair alone. Superior capsule reconstruction has become popular rapidly, but given the novelty of the procedure, there is currently a paucity of outcomes data to review. Irreparable rotator cuff tears are a challenging condition with a variety of surgical options available. Two such options-interposition and superior capsule reconstruction-both employ grafts in an attempt to restore joint stability and function. In the past 3 years, literature discussing interposition grafting has explored the different types of grafts, and mostly employed pre-post analysis. The recent superior capsule reconstruction articles strictly used human dermal allograft and offer a variety of surgical techniques without quantitative data. PMID- 29327178 TI - Clinical Impact and Risk Factors for Skeletal Muscle Loss After Complete Resection of Early Non-small Cell Lung Cancer. AB - BACKGROUND: A relationship between sarcopenia diagnosed by skeletal muscle area (SMA) and poor prognosis in cancer patients has recently been reported. This study aimed to clarify the clinical significance of postoperatively decreased SMA in patients with early non-small cell lung cancer (NSCLC). METHODS: This study selected 101 patients with pathologic stage 1 NSCLC who had undergone pre- and postoperative (~ 1 year) computed tomography scans and lobectomy between 2005 and 2010 at Kyushu University Hospital. The post/pre ratio was defined as the postoperative normalized SMA (cm2/m2) at the 12th thoracic vertebra level divided by the preoperative normalized SMA. The cutoff value for the post/pre ratio was set at 0.9. RESULTS: The study classified 31 patients (30.7%) as having decreased SMA. Poor performance status (PS) was significantly associated with decreased SMA (p = 0.048). The patients with decreased SMA had a significantly shorter disease free survival (DFS) (p < 0.001) and overall survival (OS) (p < 0.001) than the other patients. Decreased SMA was found to be an independent prognostic factor for DFS (p = 0.010) and OS (p = 0.0072). The independent risk factors for skeletal muscle loss included poor PS (PS >= 1) and obstructive ventilatory impairment [forced expiratory volume (FEV) 1% < 70%]. CONCLUSIONS: Skeletal muscle loss after surgery is significantly associated with postoperative poor outcomes for patients with early NSCLC. Patients with poor PS, obstructive ventilatory impairment, or both need careful support to maintain their skeletal muscle mass. Future prospective studies may clarify whether physical activity and nutritional support improve postoperative prognosis. PMID- 29327179 TI - Liver Transplantation is Equally Effective as a Salvage Therapy for Patients with Hepatocellular Carcinoma Recurrence Following Radiofrequency Ablation or Liver Resection with Curative Intent. AB - BACKGROUND: Liver resection (LR) and radiofrequency ablation (RFA) are curative intent therapies for early stages of hepatocellular carcinoma (HCC). If HCC recurs, salvage liver transplant (SLT) may constitute a treatment option. OBJECTIVE: We aimed to compare the outcomes of patients transplanted for recurrent HCC after curative-intent therapies with those transplanted as initial therapy. METHODS: We conducted a matched-control (1:1) cohort study comparing patients with HCC treated with primary liver transplant (PLT) with SLT after HCC recurrence. Matching was performed according to the size and number of viable tumors at explant pathology following liver transplant. RESULTS: Between November 1999 and December 2014, 687 patients with HCC were listed for transplant at our institution. A total of 559 patients were transplanted; 509 patients were treated with PLT and 50 patients were treated with SLT for HCC recurrence after primary treatment with LR (n = 25) or RFA (n = 25). The median length of follow-up from transplant was 64 months (0.5-195), and the median time from curative-intent treatment of HCC with RFA or LR to recurrence was 9.5 months (1-36) and 14.5 months (3-143), respectively (p = 0.04). The matched cohort was composed of 48 SLT patients (23 LR and 25 RFA) and 48 PLT patients. The 5-year risk of recurrence after LT was 22% in the PLT group versus 32% in the SLT group (p = 0.53), while the 5-year actuarial patient survival after PLT was 69% versus 70% in the SLT group (p = 1). CONCLUSION: Liver transplant is an effective treatment for patients with HCC recurrence following RFA or LR. Outcomes are similar in both groups. PMID- 29327181 TI - Correction to: Promising Antibacterial Effects of Silver Nanoparticle-Loaded Tea Tree Oil Nanoemulsion: a Synergistic Combination Against Resistance Threat. AB - With regrets, there is an error in the name of one of the authors which has only been noticed after publication. PMID- 29327180 TI - Chemotherapy with or Without Definitive Radiation Therapy in Inoperable Pancreatic Cancer. AB - BACKGROUND: The LAP07 randomized trial calls into question the role of radiation therapy (RT) in the modern treatment of locally advanced pancreatic cancer (LAPC). However, advances in chemotherapy and RT limit application of the LAP07 results to current clinical practice. Here we utilize the National Cancer Database (NCDB) to evaluate the effects of RT in patients receiving chemotherapy for LAPC. METHODS: Using the NCDB, patients with American Joint Committee on Cancer (AJCC) clinical stage T2-4, N0-1, M0 adenocarcinoma of the pancreas from 2004 to 2014 were analyzed. Patients were stratified into chemotherapy only (CT) and chemoradiation (CRT) cohorts. Patients undergoing definitive RT, defined as at least 20 fractions or >= 5 Gy per fraction [i.e., stereotactic body radiation therapy (SBRT)] were included in the CRT cohort. Propensity-score matching (PSM) and landmark analysis were used to address selection bias and lead-time bias, respectively. RESULTS: 13,004 patients met inclusion criteria, of whom 7034 (54%) received CT and 5970 (46%) received CRT. After PSM, 5215 patients remained in each cohort. The CRT cohort demonstrated better overall survival (OS) compared with CT alone, with median and 1-year OS of 12 versus 10 months, and 50% and 41%, respectively (p < 0.001). On multivariable analysis, CRT was associated with superior OS with hazard ratio of 0.79 (95% confidence interval 0.76-0.83) compared with CT alone. CONCLUSIONS: In our series, addition of definitive radiotherapy to CT was associated with better OS when compared with CT alone in LAPC. Definitive radiotherapy should remain a treatment option for LAPC, but optimal selection criteria remain unclear. PMID- 29327182 TI - Changes in Iron Absorption After Roux-en-Y Gastric Bypass. AB - INTRODUCTION: Iron deficiency is one of the most common deficiencies that may occur after Roux-en-Y gastric bypass (RYGB). Little is known about the optimal treatment of post-RYGB iron deficiency. AIM: The aim of this study is to evaluate the changes in iron absorption characteristics after RYGB for two oral iron formulations, one presented in tablet form and one as in the form of a solution. METHOD: Iron absorption in 24 obese women was studied before and 1 month after RYGB. Twelve patients were tested with a single dose of 600 mg ferrous fumarate in tablet form (195 mg of elementary iron, group 1), and 12 patients received a single dose of 1390 mg ferrous gluconate as a solution (160 mg of elementary iron, group 2). Serum iron levels were measured before (T0) and every hour after ingestion of the supplement (T1-T9). RESULTS: Before surgery, iron absorption was similar for the two supplements (P = 0.71). However, RYGB was associated with a decrease in fumarate iron absorption (P < 0.001) but did not affect gluconate iron absorption (P = 0.13). Postoperative absorption of fumarate iron was significantly lower than gluconate iron at T1 (P < 0.05), but the overall difference over 9 h did not reach statistical significance (P = 0.53). CONCLUSION: RYGB adversely affects the absorption of ferrous fumarate tablets but not that of solubilized ferrous gluconate. A solubilized supplement is therefore preferred as the supplement of first choice after RYGB. PMID- 29327183 TI - Bidirectional Jejunojejunal Anastomosis Prevents Early Small Bowel Obstruction Due to the Kinking After Closure of the Mesenteric Defect in the Laparoscopic Roux-en-Y Gastric Bypass. AB - BACKGROUND: The closure of the mesenteric defects (CMD) in Roux-en-Y gastric bypass (RYGB) reduces the risk of small bowel obstruction (SBO) due to internal hernia but might be associated with an increased risk of early SBO triggered by the jejunojejunal anastomosis (JJS) kinking. The aim of this study was to assess how enlarging the JJS with a bidirectional linear stapling can aid in avoiding the risk of early SBO by kinking. MATERIALS AND METHODS: This retrospective cohort study concerns 1327 patients who underwent RYGB with CMD between May 2007 and August 2016. The first 626 patients (group A) had a unidirectional JJS. The following 701 patients (group B) had a bidirectional side-to-side JJS and a hand sewn closure of the remaining defect. We compared early SBO between the two groups. RESULTS: Eleven (1.75%) early SBO due to the JJS kinking occurred in group A, whereas none occurred in group B (p = 0.0012). Thirty-nine early postoperative complications happened in group A versus 32 in group B (p = 0.17). Nine (1.2%) digestive bleedings occurred in group B versus two (0.3%) in group A (OR = 4.05 [0.87-18], p = 0.054). Average operating time was 81 min [37-330] in group A and 77 min [33-240] in group B. CONCLUSION: Enlarging the JJS with a bidirectional linear stapling is associated with a reduced risk of early SBO due to the anastomosis kinking. However, it could be related to an increased risk of digestive bleedings. PMID- 29327184 TI - Efficacy of Forced-Air Warming to Prevent Perioperative Hypothermia in Morbidly Obese Versus Non-obese Patients. AB - BACKGROUND: Hypothermia is associated with an increased postoperative morbidity and mortality. Forced-air warming systems are the most effective methods for its prevention. When using a mattress, a reduction in the area of diffusion of warm air by crushing due to excess weight cannot be ruled out. METHODS: We designed a prospective study to compare the efficacy of a forced-air warming mattress (Bair Hugger(r) 585) to prevent hypothermia (core temperature (CT degrees ) < 36 degrees C) in morbidly obese (group MO, body mass index (BMI) >= 40 kg/m2) and non-obese patients (group NO, BMI < 30 kg/m2). RESULTS: Twenty-six patients were included in group MO (84% bariatric surgery, 96% laparoscopic procedures) and 32 in group NO (37.5% cholecystectomy, 62.5% laparoscopic procedures). The incidence of hypothermia was not different between the two groups 1 h after induction (H1) and at extubation: 22 vs 19% (not significant (NS)) and 23 vs 19% (NS) for the group MO versus group NO. At H1, the mean CT degrees was not different: 36.3 +/- 0.4 degrees C vs 36.4 +/- 0.5 degrees C (NS), group MO versus group NO. No patient presented severe hypothermia (CT degrees < 34.9 degrees C). Dysfunction of the forced-air warming mattress was observed for eight patients (31%) in group MO but for none in group NO. CONCLUSION: The forced-air warming mattress is effective in preventing hypothermia in MO patients. However, excess weight is associated with frequent dysfunction of the system, which does not make it a practical system in a context of MO. PMID- 29327185 TI - Degradation of organics extracted from dewatered sludge by alkaline pretreatment in microbial electrolysis cell. AB - Waste activated sludge in China are mostly subjected to dewatering process before final disposal without stabilization. This study investigated the feasibility of organics degradation and H2 production from non-stabilized dewatered sludge (DS) by microbial electrolysis cells (MECs). Alkaline pretreatment was used to disintegrate sludge matrix and solubilize organic matters in DS. Then, the treatment performance of DS supernatant in a single-chamber MEC at various applied voltages was investigated. The COD (chemical oxygen demand) removal rate increased with increasing voltage, which ranged from 26.35 to 44.92% at 0.5-0.9 V. The average coulombic efficiency was 75.6%, while the cathodic hydrogen recovery was not satisfied (15.56-20.05%) with H2 production rates of 0.027-0.038 m3 H2/(m3 day). The reasons could be ascribed to the complexity of the substrate, H2 loss, and the confinement of configuration in scale-up. The organic matter degradation was influenced by the composition of DS. The carbohydrates could be readily used; meanwhile, the major component of the DS supernatant, i.e. proteins, was difficult to be utilized, which resulted from the low biodegradability of the transphilic fractions during the MEC operation. PMID- 29327187 TI - Does biochar affect the availability and chemical fractionation of phosphate in soils? AB - Biochar as a soil amendment has been reported to affect the content and availability of soil nutrients. In this study, we aimed to test whether the biochar addition to soils would change the availability and chemical fractionation of phosphate in soils. Two soils (Ultisol and Alfisol) were amended with five kinds of biochars at application rate of 0, 1, and 2% (w/w). After 3 month incubation, availability and chemical forms of P were measured to investigate the potential effect and role of biochar in improving P availability in soils. The biochars used here had a lager variation of P content, depending on their feedstocks. Compared to the untreated soils, application of biochars derived from deciduous tree leaves (DLB), reed (RB), and rice straw (RSB) significantly increased the pH of two soils. The total P content of biochar amended soils was increased with the addition of biochars. However, only RSB exhibited a significant increase (p < 0.05) of total P content. Application of biochars significantly increased the NH4Cl-extractable P content of two soils, indicating that biochars were able to increase the availability of phosphate in soils, but the amount of available P was dependent on biochar types. Ultisol and Alfisol amended with RSB (2% w/w) showed an increase in the P availability (0.5 M NaHCO3-extractable P) by 46 and 39%, respectively. For strongly acidic Ultisol, addition of biochar significantly increased Al-P and Ca-P content, as well as decreased Fe-P content. The P desorption test indicated the release of P from soils increased with the addition of biochar. Results suggested that biochar would change the P sorption affinity of the soil and help to increase the availability of fixed P. The increase of P availability with biochar application was due to the pH change and direct P contribution from biochar. Our results concluded that biochar affected the availability, chemical forms, and sorption capability of phosphate in soil. The extent of biochar effects on soil P varied greatly with the type of feedstock of biochar and soil type. PMID- 29327188 TI - Temporal variation in bacterial and methanogenic communities of three full-scale anaerobic digesters treating swine wastewater. AB - To investigate the effects of temporal variations of process parameters on microbial community structures in the two types of full-scale anaerobic digester treating swine wastewater, three full-scale anaerobic digesters were monitored. An anaerobic filter (AF)-type digester located in Gong-Ju (GJ) showed the highest COD removal among three digesters and maintained stable efficiency. A digester in Hong-Seong (HS) was of the same type as it GJ and showed improved efficiency over the sampling period. A continuously stirred tank reactor (CSTR)-type digester in Soon-Cheon (SC) showed decreasing efficiency due to a high residual concentration of VFAs and NH4+. These process efficiencies were closely correlated to the Simpson indices of the methanogenic communities. Genera Bacillus, Methanosaeta, and Methanospirillum that have filamentous morphology were dominant in both AF type digesters, but genera Acholeplasma, Methanosarcina, and Methanoculleus that have spherical or coccoid morphology were dominantly abundant in the CSTR-type digester. Correlation between populations suggests a possible syntrophic relationship between genera Desulfobulbus and Methanosaeta in digesters GJ and HS. PMID- 29327186 TI - Environmental pollutants, pathogens and immune system in earthworms. AB - Earthworms also known as farmer's friends are natural tillers of soil. They belong to Phylum Annelida and class Oligochaeta. Acid soils with organic matter and surface humus maintain the largest fauna of worms and earthworms. Due to their habitat in soil, they are constantly exposed to microbes and pollution generated by anthropogenic sources. Studies have revealed that damage of the immune system of earthworms can lead to alterations of both morphological and cellular characteristics of worms, activation of signalling pathways and can strongly influence their survival. Therefore, the understanding of the robust immune system in earthworms has become very important from the point of view of understanding its role in combating pathogens and pollutants and its role in indicating the soil pollution. In this article, we have outlined the (i) components of the immune system and (ii) their function of immunological responses on exposure to pollutants and pathogens. This study finds importance from the point of view of ecotoxicology and monitoring of earthworm health and exploring the scope of earthworm immune system components as biomarkers of pollutants and environmental toxicity. The future scope of this review remains in understanding the earthworm immunobiology and indicating strong biomarkers for pollution. PMID- 29327189 TI - Using a high-organic matter biowall to treat a trichloroethylene plume at the Beaver Dam Road landfill. AB - Trichloroethylene (TCE) is a highly effective industrial degreasing agent and known carcinogen. It was frequently buried improperly in landfills and has subsequently become one of the most common groundwater and soil contaminants in the USA. A common strategy to remediate TCE-contaminated sites and to prevent movement of the TCE plumes into waterways is to construct biowalls which consist of biomaterials and amendments to enhance biodegradation. This approach was chosen to contain a TCE plume emanating from a closed landfill in Maryland. However, predicting the effectiveness of biowalls is often site specific. Therefore, we conducted an extensive series of batch reactor studies at 12 degrees C as opposed to the typical room temperature to examine biowall fill material combinations including the effects of zero-valent iron (ZVI) and glycerol amendments. No detectable TCE was observed after several months in the laboratory study when using the unamended 4:3 mulch-to-compost combination. In the constructed biowall, this mixture reduced the upstream TCE concentration by approximately 90% and generated ethylene downstream, an indication of successful reductive dechlorination. However, the more toxic degradation product vinyl chloride (VC) was also detected downstream at levels approximately ten times greater than the maximum contaminant level. This indicates that incomplete degradation also occurred. In the laboratory, ZVI reduced VC formation. A hazard quotient was calculated for the landfill site with and without the biowall. The addition of the biowall decreased the hazard quotient by 88%. PMID- 29327190 TI - Chemical characterization and quantitativ e assessment of source-specific health risk of trace metals in PM1.0 at a road site of Delhi, India. AB - This study presents the concentration of submicron aerosol (PM1.0) collected during November, 2009 to March, 2010 at two road sites near the Indian Institute of Technology Delhi campus. In winter, PM1.0 composed 83% of PM2.5 indicating the dominance of combustion activity-generated particles. Principal component analysis (PCA) proved secondary aerosol formation as a dominant process in enhancing aerosol concentration at a receptor site along with biomass burning, vehicle exhaust, road dust, engine and tire tear wear, and secondary ammonia. The non-carcinogenic and excess cancer risk for adults and children were estimated for trace element data set available for road site and at elevated site from another parallel work. The decrease in average hazard quotient (HQ) for children and adults was estimated in following order: Mn > Cr > Ni > Pb > Zn > Cu both at road and elevated site. For children, the mean HQs were observed in safe level for Cu, Ni, Zn, and Pb; however, values exceeded safe limit for Cr and Mn at road site. The average highest hazard index values for children and adults were estimated as 22 and 10, respectively, for road site and 7 and 3 for elevated site. The road site average excess cancer risk (ECR) risk of Cr and Ni was close to tolerable limit (10-4) for adults and it was 13-16 times higher than the safe limit (10-6) for children. The ECR of Ni for adults and children was 102 and 14 times higher at road site compared to elevated site. Overall, the observed ECR values far exceed the acceptable level. PMID- 29327191 TI - Iron-impregnated zeolite catalyst for efficient removal of micropollutants at very low concentration from Meurthe river. AB - In this paper, for the first time, faujasite Y zeolite impregnated with iron (III) was employed as a catalyst to remove a real cocktail of micropollutants inside real water samples from the Meurthe river by the means of the heterogeneous photo-Fenton process. The catalyst was prepared by the wet impregnation method using iron (III) nitrate nonahydrate as iron precursor. First, an optimization of the process parameters was conducted using phenol as model macro-pollutant. The hydrogen peroxide concentration, the light wavelength (UV and visible) and intensity, the iron loading immobilized, as well as the pH of the solution were investigated. Complete photo-Fenton degradation of the contaminant was achieved using faujasite containing 20 wt.% of iron, under UV light, and in the presence of 0.007 mol/L of H2O2 at pH 5.5. In a second step, the optimized process was used with real water samples from the Meurthe river. Twenty-one micropollutants (endocrine disruptors, pharmaceuticals, personal care products, and perfluorinated compounds) including 17 pharmaceutical compounds were specifically targeted, detected, and quantified. All the initial concentrations remained in the range of nanogram per liter (0.8-88 ng/L). The majority of the micropollutants had a large affinity for the surface of the iron impregnated faujasite. Our results emphasized the very good efficiency of the photo-Fenton process with a cocktail of a minimum of 21 micropollutants. Except for sulfamethoxazole and PFOA, the concentrations of all the other microcontaminants (bisphenol A, carbamazepine, carbamazepine-10,11-epoxide, clarithromycin, diclofenac, estrone, ibuprofen, ketoprofen, lidocaine, naproxen, PFOS, triclosan, etc.) became lower than the limit of quantification of the LC MS/MS after 30 min or 6 h of photo-Fenton treatment depending on their initial concentrations. The photo-Fenton degradation of PFOA can be neglected. The photo Fenton degradation of sulfamethoxazole obeys first-order kinetics in the presence of the cocktail of the other micropollutants. PMID- 29327192 TI - Towards a better control of the wastewater treatment process: excitation-emission matrix fluorescence spectroscopy of dissolved organic matter as a predictive tool of soluble BOD5 in influents of six Parisian wastewater treatment plants. AB - The online monitoring of dissolved organic matter (DOM) in raw sewage water is expected to better control wastewater treatment processes. Fluorescence spectroscopy offers one possibility for both the online and real-time monitoring of DOM, especially as regards the DOM biodegradability assessment. In this study, three-dimensional fluorescence spectroscopy combined with a parallel factor analysis (PARAFAC) has been investigated as a predictive tool of the soluble biological oxygen demand in 5 days (BOD5) for raw sewage water. Six PARAFAC components were highlighted in 69 raw sewage water samples: C2, C5, and C6 related to humic-like compounds, along with C1, C3, and C4 related to protein like compounds. Since the PARAFAC methodology is not available for online monitoring, a peak-picking approach based on maximum excitation-emission (Ex-Em) localization of the PARAFAC components identified in this study has been used. A good predictive model of soluble BOD5 using fluorescence spectroscopy parameters was obtained (r2 = 0.846, adjusted r2 = 0.839, p < 0.0001). This model is quite straightforward, easy to automate, and applicable to the operational field of wastewater treatment for online monitoring purposes. PMID- 29327193 TI - Effect of vegetation type on treatment performance and bioelectric production of constructed wetland modules combined with microbial fuel cell (CW-MFC) treating synthetic wastewater. AB - An operation of microcosm-constructed wetland modules combined with microbial fuel cell device (CW-MFC) was assessed for wastewater treatment and bioelectric generation. One of the crucial aims of the present experiment is also to determine effect of vegetation on wastewater treatment process and bioelectric production in wetland matrix with microbial fuel cell. Accordingly, CW-MFC modules with vegetation had higher treatment efficiency compared to unplanted wetland module, and average COD, NH4+, and TP removal efficiency in vegetated wetland modules were ranged from 85 to 88%, 95 to 97%, and 95 to 97%, respectively. However, the highest NO3- removal (63%) was achieved by unplanted control module during the experiment period. The maximum average output voltage, power density, and Coulombic efficiency were obtained in wetland module vegetated with Typha angustifolia for 1.01 +/- 0.14 V, 7.47 +/- 13.7 mWatt/m2, and 8.28 +/- 10.4%, respectively. The results suggest that the presence of Typha angustifolia vegetation in the CW-MFC matrix provides the benefits for treatment efficiency and bioelectric production; thus, it increases microbial activities which are responsible for biodegradation of organic compounds and catalyzed to electron flow from anode to cathode. Consequently, we suggest that engineers can use vegetated wetland matrix with Typha angustifolia in CW-MFC module in order to maximize treatment efficiency and bioelectric production. PMID- 29327194 TI - Agro-industrial waste recycling by Trichosporon fermentans: conversion of waste sweetpotato vines alone into lipid. AB - Agro-industrial waste can be used to replace traditional carbohydrates, such as sucrose, starch, and glucose in many industrial fermentation processes. This study investigated the conversion of pre-treated waste sweetpotato vines (SV) into lipid by Trichosporon fermentans under the separate hydrolysis and fermentation (SHF) and the simultaneous saccharification and fermentation (SSF) processes. The results showed that SV autoclaving significantly increased the lipid accumulation of T. fermentans compared with acid or alkaline hydrolysis. The effects of different pre-treatments on SV were also studied by scanning electron microscopy and Fourier transform infrared spectroscopy, which showed the partial removal of the aliphatic fractions, hemicelluloses, and lignin during pre treatment. Moreover, the lipid yield of T. fermentans in SSF was 6.98 g L-1, which was threefold higher than that (2.79 g L-1) in SHF, and the lipid contents of yeast in SSF and SHF were 36 and 25%, respectively. Overall, this study indicated that SSF using autoclaved SV could increase the growth and lipid production of T. fermentans and provided an efficient way to realize the resource utilization of waste SV. PMID- 29327195 TI - Long-term variations of the riverine input of potentially toxic dissolved elements and the impacts on their distribution in Jiaozhou Bay, China. AB - The concentrations of the potentially toxic dissolved elements (PTEs) As, Hg, Cr, Pb, Cd, and Cu in the main rivers into Jiaozhou Bay (JZB) during 1981-2006 were measured, and the impact of the fluvial PTE fluxes on their distributions in the bay was investigated. The overall average concentration in the rivers into JZB ranged from 8.8 to 39.6 MUg L-1 for As, 10.1 to 632.6 ng L-1 for Hg, 4.1 to 3003.6 MUg L-1 for Cr, 8.5 to 141.9 MUg L-1 for Pb, 1.1 to 34.2 MUg L-1 for Cd, and 13.2 to 1042.8 MUg L-1 for Cu. The interannual average concentration variations of the PTEs in these rivers were enormous, with maximum differences of 41-21,680 times, while their relative seasonal changes were far smaller with maximum differences of 3-12 times. The total annual fluvial fluxes for As, Hg, and Cr into JZB exhibited the inverse "U" pattern, while those for Pb and Cd showed the "N" pattern. As a whole, the total annual Cu flux presented a growing tendency from 1998 to 2006. In general, the changing trends of the PTE concentrations in JZB were similar to those of their annual fluxes from the rivers, indicating a great impact of their fluvial fluxes on their distributions in JZB. The annual concentration of Cd in the bay almost remained constant and differed from the fluvial flux of Cd. The diversified pattern of the environmental Kuznets curve (EKC) represented China's approach to industrialization as "improving while developing." PMID- 29327196 TI - Biochar amendment with fertilizers increases peanut N uptake, alleviates soil N2O emissions without affecting NH3 volatilization in field experiments. AB - Biochar application to soil is currently widely advocated for a variety of reasons related to sustainability. However, the synergistic effects of biochar combined with mineral or organic fertilizer on soil N2O emissions, NH3 volatilization, and plant N uptake are poorly documented. Field plot experiments planted with peanut were conducted under the application of biochar (derived from rice husk and cottonseed husk, 50 t ha-1) with organic or mineral fertilizer. It was found that biochar increased soil nutrient availability and decreased surface soil bulk density, demonstrating that biochar could improve the soil quality especially in the 0-20-cm profile. The total N content of the plant changed little with treatments, but the kernel N concentration increased significantly when biochar was applied with organic fertilizer. Peanut yield increased with biochar amendment while no significant difference was observed in plant biomass, suggesting biochar had a positive effect on belowground biomass. Peanut N uptake was also increased following biochar amendment with either organic or mineral fertilizers. While biochar amendment had no significant effect on soil NH3 volatilization, it did decrease the cumulative N2O emission by 36.3% on average with organic fertilizer, and by 32.6% with mineral fertilizer, respectively (p < 0.05). The copy numbers of 16S rDNA, nifH, nirK, and nirS were not influenced by the application of biochar; however, the copy number of nosZ was significantly increased under biochar plus mineral fertilizer treatment. The results imply that biochar application can suppress N2O emissions, as a result of abiotic factors and enhanced peanut N uptake rather than changes of denitrification genes. PMID- 29327197 TI - [New kidney function tests: Renal functional reserve and furosemide stress test]. AB - Acute kidney injury (AKI) occurs in 30-50% of all intensive care patients. Renal replacement therapy (RRT) has to be initiated in 10-15%. The early in-hospital mortality is about 50%. Up to 20% of all survivors develop chronic kidney disease after intensive care discharge and progress to end-stage kidney disease within the next 10 years. For timely initiation of prophylactic or therapeutic interventions, it is crucial to exactly determine the actual kidney function, i. e., glomerular filtration rate (GFR), and to gain insight into the further development of kidney function. Traditionally, renal function has been estimated using serum levels of creatinine or urea. Unfortunately, both are notoriously unreliable and insensitive in intensive care patients. Cystatin C has fewer non GFR determinants when compared to creatinine and is more sensitive and accurate to detect early decreases of GFR. At present, new functional tests are discussed, namely the furosemide stress test (FST) and renal functional reserve (RFR). The FST consists of an intravenous infusion of 1.0-1.5 mg/kgBW furosemide to critically ill patients with AKI. An increase in urine output to >100 ml/h is indicative of a GFR >20 ml/min and almost certainly excludes progression to AKI stage III and need for RRT. Estimation of RFR can be made by short-term oral or intravenous administration of a high protein load. A subsequent increase in GFR defines the presence and the magnitude of functional reserve which can be activated. Loss of RFR is an indicator of loss of functioning nephron mass and incomplete recovery following AKI. Both FST and RFR can help to improve diagnosis and care of high-risk patients with acute and chronic kidney disease. PMID- 29327198 TI - Graphene Oxide Hybridized nHAC/PLGA Scaffolds Facilitate the Proliferation of MC3T3-E1 Cells. AB - Biodegradable porous biomaterial scaffolds play a critical role in bone regeneration. In this study, the porous nano-hydroxyapatite/collagen/poly(lactic co-glycolic acid)/graphene oxide (nHAC/PLGA/GO) composite scaffolds containing different amount of GO were fabricated by freeze-drying method. The results show that the synthesized scaffolds possess a three-dimensional porous structure. GO slightly improves the hydrophilicity of the scaffolds and reinforces their mechanical strength. Young's modulus of the 1.5 wt% GO incorporated scaffold is greatly increased compared to the control sample. The in vitro experiments show that the nHAC/PLGA/GO (1.5 wt%) scaffolds significantly cell adhesion and proliferation of osteoblast cells (MC3T3-E1). This present study indicates that the nHAC/PLGA/GO scaffolds have excellent cytocompatibility and bone regeneration ability, thus it has high potential to be used as scaffolds in the field of bone tissue engineering. PMID- 29327199 TI - Glycogen Synthase Kinase-3beta Regulates Equilibrium Between Neurogenesis and Gliogenesis in Rat Model of Parkinson's Disease: a Crosstalk with Wnt and Notch Signaling. AB - Neurogenesis involves generation of functional newborn neurons from neural stem cells (NSCs). Insufficient formation or accelerated degeneration of newborn neurons may contribute to the severity of motor/nonmotor symptoms of Parkinson's disease (PD). However, the functional role of adult neurogenesis in PD is yet not explored and whether glycogen synthase kinase-3beta (GSK-3beta) affects multiple steps of adult neurogenesis in PD is still unknown. We investigated the possible underlying molecular mechanism of impaired adult neurogenesis associated with PD. Herein, we show that single intra-medial forebrain bundle (MFB) injection of 6 hydroxydopamine (6-OHDA) efficiently induced long-term activation of GSK-3beta and reduced NSC self-renewal, proliferation, neuronal migration, and neuronal differentiation accompanied with increased astrogenesis in subventricular zone (SVZ) and hippocampal dentate gyrus (DG). Indeed, 6-OHDA also delayed maturation of neuroblasts in the DG as witnessed by their reduced dendritic length and arborization. Using a pharmacological approach to inhibit GSK-3beta activation by specific inhibitor SB216763, we show that GSK-3beta inhibition enhances radial glial cells, NSC proliferation, self-renewal in the SVZ, and the subgranular zone (SGZ) in the rat PD model. Pharmacological inhibition of GSK-3beta activity enhances neuroblast population in SVZ and SGZ and promotes migration of neuroblasts towards the rostral migratory stream and lesioned striatum from dorsal SVZ and lateral SVZ, respectively, in PD model. GSK-3beta inhibition enhances dendritic arborization and survival of granular neurons and stimulates NSC differentiation towards the neuronal phenotype in DG of PD model. The aforementioned effects of GSK-3beta involve a crosstalk between Wnt/beta-catenin and Notch signaling pathways that are known to regulate NSC dynamics. PMID- 29327200 TI - Exocyst Complex Member EXOC5 Is Required for Survival of Hair Cells and Spiral Ganglion Neurons and Maintenance of Hearing. AB - The exocyst, an octameric protein complex consisting of Exoc1 through Exoc8, was first determined to regulate exocytosis by targeting vesicles to the plasma membrane in yeast to mice. In addition to this fundamental role, the exocyst complex has been implicated in other cellular processes. In this study, we investigated the role of the exocyst in cochlear development and hearing by targeting EXOC5, a central exocyst component. Deleting Exoc5 in the otic epithelium with widely used Cre lines resulted in early lethality. Thus, we generated two different inner ear-specific Exoc5 knockout models by crossing Gfi1Cre mice with Exoc5f/f mice for hair cell-specific deletion (Gfi1Cre/+;Exoc5f/f) and by in utero delivery of rAAV-iCre into the otocyst of embryonic day 12.5 for deletion throughout the otic epithelium (rAAV2/1 iCre;Exoc5f/f). Gfi1Cre/+;Exoc5f/f mice showed relatively normal hair cell morphology until postnatal day 20, after which hair cells underwent apoptosis accompanied by disorganization of stereociliary bundles, resulting in progressive hearing loss. rAAV2/1-iCre;Exoc5f/f mice exhibited abnormal neurite morphology, followed by apoptotic degeneration of spiral ganglion neurons (SGNs) and hair cells, which led to profound and early-onset hearing loss. These results demonstrate that Exoc5 is essential for the normal development and survival of cochlear hair cells and SGNs, as well as the functional maintenance of hearing. PMID- 29327201 TI - Allele-Specific Biased Expression of the CNTN6 Gene in iPS Cell-Derived Neurons from a Patient with Intellectual Disability and 3p26.3 Microduplication Involving the CNTN6 Gene. AB - Copy number variations (CNVs) of the human CNTN6 gene caused by megabase-scale microdeletions or microduplications in the 3p26.3 region are often the cause of neurodevelopmental disorders, including intellectual disability and developmental delay. Surprisingly, patients with different copy numbers of this gene display notable overlapping of neuropsychiatric symptoms. The complexity of the study of human neuropathologies is associated with the inaccessibility of brain material. This problem can be overcome through the use of reprogramming technologies that permit the generation of induced pluripotent stem (iPS) cells from fibroblasts and their subsequent in vitro differentiation into neurons. We obtained a set of iPS cell lines derived from a patient carrier of the CNTN6 gene duplication and from two healthy donors. All iPS cell lines displayed the characteristics of pluripotent cells. Some iPS cell lines derived from the patient and from healthy donors were differentiated in vitro by exogenous expression of the Ngn2 transcription factor or by spontaneous neural differentiation of iPS cells through the neural rosette stage. The obtained neurons showed the characteristics of mature neurons as judged by the presence of neuronal markers and by their electrophysiological characteristics. Analysis of allele-specific expression of the CNTN6 gene in these neuronal cells by droplet digital PCR demonstrated that the level of expression of the duplicated allele was significantly reduced compared to that of the wild-type allele. Importantly, according to the sequencing data, both copies of the CNTN6 gene, which were approximately 1 Mb in size, showed no any additional structural rearrangements. PMID- 29327202 TI - Transient Disruption of Adenosine Signaling During Embryogenesis Triggers a Pro epileptic Phenotype in Adult Zebrafish. AB - Adenosinergic signaling has important effects on brain function, anatomy, and physiology in both late and early stages of development. Exposure to caffeine, a non-specific blocker of adenosine receptor, has been indicated as a developmental risk factor. Disruption of adenosinergic signaling during early stages of development can change the normal neural network formation and possibly lead to an increase in susceptibility to seizures. In this work, morpholinos (MO) temporarily blocked the translation of adenosine receptor transcripts, adora1, adora2aa, and adora2ab, during the embryonic phase of zebrafish. It was observed that the block of adora2aa and adora2aa + adora2ab transcripts increased the mortality rate and caused high rate of malformations. To test the susceptibility of MO adora1, MO adora2aa, MO adora2ab, and MO adora2aa + adora2ab animals to seizure, pentylenetetrazole (10 mM) was used as a convulsant agent in larval and adult stages of zebrafish development. Although no MO promoted significant differences in latency time to reach the seizures stages in 7-day-old larvae, during the adult stage, all MO animals showed a decrease in the latency time to reach stages III, IV, and V of seizure. These results indicated that transient interventions in the adenosinergic signaling through high affinity adenosine receptors during embryonic development promote strong outcomes on survival and morphology. Additionally, long-term effects on neural development can lead to permanent impairment on neural signaling resulting in increased susceptibility to seizure. PMID- 29327203 TI - Loss of Cx43-Mediated Functional Gap Junction Communication in Meningeal Fibroblasts Following Mouse Hepatitis Virus Infection. AB - Mouse hepatitis virus (MHV) infection causes meningoencephalitis by disrupting the neuro-glial and glial-pial homeostasis. Recent studies suggest that MHV infection alters gap junction protein connexin 43 (Cx43)-mediated intercellular communication in brain and primary cultured astrocytes. In addition to astrocytes, meningeal fibroblasts also express high levels of Cx43. Fibroblasts in the meninges together with the basal lamina and the astrocyte endfeet forms the glial limitans superficialis as part of the blood-brain barrier (BBB). Alteration of glial-pial gap junction intercellular communication (GJIC) in MHV infection has the potential to affect the integrity of BBB. Till date, it is not known if viral infection can modulate Cx43 expression and function in cells of the brain meninges and thus affect BBB permeability. In the present study, we have investigated the effect of MHV infection on Cx43 localization and function in mouse brain meningeal cells and primary meningeal fibroblasts. Our results show that MHV infection reduces total Cx43 levels and causes its intracellular retention in the perinuclear compartments reducing its surface expression. Reduced trafficking of Cx43 to the cell surface in MHV-infected cells is associated with loss functional GJIC. Together, these data suggest that MHV infection can directly affect expression and cellular distribution of Cx43 resulting in loss of Cx43-mediated GJIC in meningeal fibroblasts, which may be associated with altered BBB function observed in acute infection. PMID- 29327204 TI - Neuroprotective Effects of Filgrastim in Rotenone-Induced Parkinson's Disease in Rats: Insights into its Anti-Inflammatory, Neurotrophic, and Antiapoptotic Effects. AB - All current treatments of Parkinson's disease (PD) focus on enhancing the dopaminergic effects and providing symptomatic relief; however, they cannot delay the disease progression. Filgrastim, a recombinant methionyl granulocyte colony stimulating factor, demonstrated neuroprotection in many neurodegenerative and neurological diseases. This study aimed to assess the neuroprotective effects of filgrastim in rotenone-induced rat model of PD and investigate the potential underlying mechanisms of filgrastim actions. The effects of two doses of filgrastim (20 and 40 MUg/kg) on spontaneous locomotion, catalepsy, body weight, histology, and striatal dopamine (DA) content, as well as tyrosine hydroxylase (TH) and alpha-synuclein expression, were evaluated. Then, the effective dose was further tested for its potential anti-inflammatory, neurotrophic, and antiapoptotic effects. Filgrastim (40 MUg/kg) prevented rotenone-induced motor deficits, weight reduction, striatal DA depletion, and histological damage. Besides, it significantly inhibited rotenone-induced decrease in TH expression and increase in alpha-synuclein immunoreactivity in the midbrains and striata of the rats. These effects were associated with reduction of rotenone-induced neuroinflammation, apoptosis, and brain-derived neurotrophic factor depletion. Collectively, these results suggest that filgrastim might be a good candidate for management of PD. PMID- 29327205 TI - Nociceptive Roles of TRPM2 Ion Channel in Pathologic Pain. AB - Pain is a protective mechanism that enables us to avoid potentially harmful environments. However, when pathologically persisted and aggravated under severely injured or inflamed conditions, pain often reduces the quality of life and thus is considered as a disease to eliminate. Inflammatory and/or neuropathic mechanisms may exaggerate interactions between damaged tissues and neural pathways for pain mediation. Similar mechanisms also promote the communication among cellular participants in synapses at spinal or higher levels, which may amplify nociceptive firing and subsequent signal transmission, deteriorating the pain sensation. In this pathology, important cellular players are afferent sensory neurons, peripheral immune cells, and spinal glial cells. Arising from damage of injury, overloaded interstitial and intracellular reactive oxygen species (ROS) and intracellular Ca2+ are key messengers in the development and maintenance of pathologic pain. Thus, an ROS-sensitive and Ca2+-permeable ion channel that is highly expressed in the participant cells might play a critical role in the pathogenesis. Transient receptor potential melastatin subtype 2 (TRPM2) is the unique molecule that satisfies all of the requirements: the sensitivity, permeability, and its expressing cells. Notable progress in delineating the role of TRPM2 in pain has been achieved during the past decade. In the present review, we summarize the important findings in the key cellular components that are involved in pathologic pain. This overview will help to understand TRPM2-mediated pain mechanisms and speculate therapeutic strategies by utilizing this updated information. PMID- 29327207 TI - Phenotypic and Functional Characteristics of Human Schwann Cells as Revealed by Cell-Based Assays and RNA-SEQ. AB - This study comprehensively addresses the phenotype, function, and whole transcriptome of primary human and rodent Schwann cells (SCs) and highlights key species-specific features beyond the expected donor variability that account for the differential ability of human SCs to proliferate, differentiate, and interact with axons in vitro. Contrary to rat SCs, human SCs were insensitive to mitogenic factors other than neuregulin and presented phenotypic variants at various stages of differentiation, along with a mixture of proliferating and senescent cells, under optimal growth-promoting conditions. The responses of human SCs to cAMP induced differentiation featured morphological changes and cell cycle exit without a concomitant increase in myelin-related proteins and lipids. Human SCs efficiently extended processes along those of other SCs (human or rat) but failed to do so when placed in co-culture with sensory neurons under conditions supportive of myelination. Indeed, axon contact-dependent human SC alignment, proliferation, and differentiation were not observed and could not be overcome by growth factor supplementation. Strikingly, RNA-seq data revealed that ~ 44 of the transcriptome contained differentially expressed genes in human and rat SCs. A bioinformatics approach further highlighted that representative SC-specific transcripts encoding myelin-related and axon growth-promoting proteins were significantly affected and that a deficient expression of key transducers of cAMP and adhesion signaling explained the fairly limited potential of human SCs to differentiate and respond to axonal cues. These results confirmed the significance of combining traditional bioassays and high-resolution genomics methods to characterize human SCs and identify genes predictive of cell function and therapeutic value. PMID- 29327209 TI - Bio-monitoring of Tissue Accumulation and Genotoxic Effect of Heavy Metals in Cyprinus carpio from River Kabul Khyber Pakhtunkhwa Pakistan. AB - The study explored (I) the concentration of heavy metals in water samples (II) their bioaccumulation in common carp Cyprinus carpio (III) and the subsequent genotoxicity in the selected organs of carp; from river Kabul, Khyber Pakhtunkhwa Pakistan. Except for Mercury (Hg) the water samples had all the heavy metals within permissible limits of recommended dietary allowance (RDA). Nonetheless a number of heavy metals (Zn, Ni, Cr, Cd, Pb and Hg) showed bioaccumulation at levels higher than permissible. Zinc (Zn) was the most while Cadmium (Cd) was the least accumulated metal in all tissue samples analyzed. The metal burden in different organs of C. carpio was in sequence of intestine > skin > liver > gills > muscle. The Comet assay established DNA damage in selected organs to be in accordance with metal burden; the most to least damage being in sequence of blood > intestine > skin > liver > gills > muscle. In conclusion assessment of DNA damage in the organs of C. carpio appears to be a useful bio-marker to evaluate genotoxic effects of heavy metal pollution. PMID- 29327210 TI - Paired blood cultures increase the sensitivity for detecting pathogens in both inpatients and outpatients. AB - The objective of this study was to show the differences between paired blood cultures (PBC) versus single blood cultures (SBC) in the microbiologic yield, the sensitivity to detect pathogens and the time to positivity (TTP). We performed a retrospective study examining 112,570 blood culture samples over a 5-year period from July 2011 to May 2016 in the BacT/ALERT(r) 3D automated blood culture system (bioMerieux, Marcy l'Etoile, France). Bacteria and yeasts were identified using the VITEK(r) 2 Compact system (bioMerieux, Marcy l'Etoile, France). True positives and contaminated bottles were defined and analysed separately. We analysed TTP and adherence to blood volume guidelines for a convenience sample of 510 and 999 sequential positive cultures, respectively. Out of 49,438 PBC samples, 5810 (11.7%) were positive. In 63,132 SBC samples, 4552 (7.2%) were positive (p < 0.0001). In PBC, 5371 (10.9%) were true-positives and 439 (0.9%) contaminants. In SBC, 4095 (6.5%) were true-positives and 457 (0.7%) contaminants. In the inpatient departments (IPD), the most common isolate was Escherichia coli (n = 1373), followed by Klebsiella pneumoniae (n = 1206), whereas in the outpatient departments (OPD), the most common isolates were Salmonella typhi (n = 612) and S. paratyphi A (n = 278). In the analysis of TTP, 98% grew within 72 h, 91% within 48 h and 89% within 36 h. In the blood volume analysis, 90% of the cultures had optimal blood volume. A significantly higher positivity rate was seen in PBC compared with SBC. Our study adds to the increasing evidence of improved microbial yield of clinically significant bacteria and fungi by performing PBC instead of SBC and adhering to blood volume collection guidelines. PMID- 29327206 TI - Brain Photobiomodulation Therapy: a Narrative Review. AB - Brain photobiomodulation (PBM) therapy using red to near-infrared (NIR) light is an innovative treatment for a wide range of neurological and psychological conditions. Red/NIR light is able to stimulate complex IV of the mitochondrial respiratory chain (cytochrome c oxidase) and increase ATP synthesis. Moreover, light absorption by ion channels results in release of Ca2+ and leads to activation of transcription factors and gene expression. Brain PBM therapy enhances the metabolic capacity of neurons and stimulates anti-inflammatory, anti apoptotic, and antioxidant responses, as well as neurogenesis and synaptogenesis. Its therapeutic role in disorders such as dementia and Parkinson's disease, as well as to treat stroke, brain trauma, and depression has gained increasing interest. In the transcranial PBM approach, delivering a sufficient dose to achieve optimal stimulation is challenging due to exponential attenuation of light penetration in tissue. Alternative approaches such as intracranial and intranasal light delivery methods have been suggested to overcome this limitation. This article reviews the state-of-the-art preclinical and clinical evidence regarding the efficacy of brain PBM therapy. PMID- 29327211 TI - Twelve Lessons Learned for Effective Research Partnerships Between Patients, Caregivers, Clinicians, Academic Researchers, and Other Stakeholders. AB - Research increasingly means that patients, caregivers, health professionals, other stakeholders, and academic investigators work in partnership. This requires effective collaboration rooted in mutual respect, involvement of all participants, and good communication. Having conducted such partnered research over multiple projects, and having recently completed a project together funded by the Patient-Centered Outcomes Research Institute, we collaboratively developed a list of 12 lessons we have learned about how to ensure effective research partnerships. To foster a culture of mutual respect, hold early in-person meetings, with introductions focused on motivation, offer appropriate orientation for everyone, and maintain awareness of individual and project goals. To actively involve all team members, it is important to ensure sufficient funding for everyone's participation, to ask for and recognize diverse contributions, and to seek the input of quiet members. To facilitate good communication, teams should carefully consider labels, avoid jargon and acronyms, judiciously use homogeneous and heterogeneous subgroups, and keep progress visible. In offering pragmatic, actionable lessons we have learned through our separate and shared experiences, we hope to help foster more patient-centered research via productive and enjoyable research collaborations. PMID- 29327208 TI - Analysis of DNA modifications in aging research. AB - As geroscience research extends into the role of epigenetics in aging and age related disease, researchers are being confronted with unfamiliar molecular techniques and data analysis methods that can be difficult to integrate into their work. In this review, we focus on the analysis of DNA modifications, namely cytosine methylation and hydroxymethylation, through next-generation sequencing methods. While older techniques for modification analysis performed relative quantitation across regions of the genome or examined average genome levels, these analyses lack the desired specificity, rigor, and genomic coverage to firmly establish the nature of genomic methylation patterns and their response to aging. With recent methodological advances, such as whole genome bisulfite sequencing (WGBS), bisulfite oligonucleotide capture sequencing (BOCS), and bisulfite amplicon sequencing (BSAS), cytosine modifications can now be readily analyzed with base-specific, absolute quantitation at both cytosine-guanine dinucleotide (CG) and non-CG sites throughout the genome or within specific regions of interest by next-generation sequencing. Additional advances, such as oxidative bisulfite conversion to differentiate methylation from hydroxymethylation and analysis of limited input/single-cells, have great promise for continuing to expand epigenomic capabilities. This review provides a background on DNA modifications, the current state-of-the-art for sequencing methods, bioinformatics tools for converting these large data sets into biological insights, and perspectives on future directions for the field. PMID- 29327212 TI - A Composite of Functional Status and Pneumonia Severity Index Improves the Prediction of Pneumonia Mortality in Older Patients. AB - BACKGROUND: The baseline health status may be a determinant of interest in the evolution of pneumonia. OBJECTIVE: Our objective was to assess the predictive ability of community-acquired pneumonia (CAP) mortality by combining the Barthel Index (BI) and Pneumonia Severity Index (PSI) in patients aged >= 65 years. DESIGN, PATIENTS AND MAIN MEASURES: In this prospective, observational, multicenter analysis of comorbidities, the clinical data, additional examinations and severity of CAP were measured by the PSI and functional status by the BI. Two multivariable models were generated: Model 1 including the PSI and BI and model 2 with PSI plus BI stratified categorically. KEY RESULTS: The total population was 1919 patients, of whom 61% had severe pneumonia (PSI IV-V) and 40.4% had some degree of dependence (BI <= 90 points). Mortality in the PSI V-IV group was 12.5%. Some degree of dependence was associated with increased mortality in both the mild (7.2% vs. 3.2%; p = 0.016) and severe (14% vs. 3.3%; p < 0.001) pneumonia groups. The combination of PSI IV-V and BI <= 90 was the greatest risk factor for mortality (aOR 4.17; 95% CI 2.48 to 7.02) in our series. CONCLUSIONS: The use of a bimodal model to assess CAP mortality (PSI + BI) provides more accurate prognostic information than the use of each index separately. PMID- 29327213 TI - Add-on Treatment with Curcumin Has Antidepressive Effects in Thai Patients with Major Depression: Results of a Randomized Double-Blind Placebo-Controlled Study. AB - Activation of immune-inflammatory and oxidative-nitrosative (IO&NS) stress pathways plays a role in major depression (MDD). Evidence suggests that curcumin (500-1000 mg/day), a polyphenol with strong anti-IO&NS properties, may have efficacy either as monotherapy or as an adjunctive treatment for depression. Further controlled trials with extended treatment periods (> 8 weeks) and higher curcumin doses are warranted. This 12-week study was carried out to examine the effects of adjunctive curcumin for the treatment of MDD. In this double-blind, placebo-controlled trial, 65 participants with MDD were randomized to receive either adjunctive curcumin (increasing dose from 500 to 1500 mg/day) or placebo for 12 weeks. Four weeks after the active treatment phase, a follow-up visit was conducted at week 16. Assessments of the primary, i.e., the Montgomery-Asberg Depression Rating Scale (MADRS), and secondary, i.e., the Hamilton Anxiety Rating Scale (HAM-A), outcome measures were rated at baseline and 2, 4, 8, 12, and 16 weeks later. Curcumin was more efficacious than placebo in improving MADRS scores with significant differences between curcumin and placebo emerging at weeks 12 and 16. The effects of curcumin were more pronounced in males compared to females. There were no statistically significant treatment-emerging adverse effects and no significant effects of curcumin on blood chemistry and ECG measurements. Adjunctive curcumin has significant antidepressant effects in participants with MDD as evidenced by significant benefits occurring 12 and 16 weeks after treatment initiation. Curcumin administration was safe and well tolerated even when combined with antidepressants. Future trials should include treatment-by-sex interactions to examine putative antidepressant effects of immune-modifying compounds. PMID- 29327214 TI - Interaction effect of job insecurity and role ambiguity on psychological distress in Japanese employees: a cross-sectional study. AB - PURPOSE: We examined the interaction effect of job insecurity (JI) and role ambiguity (RA) on psychological distress in Japanese employees. METHODS: Overall, 2184 male and 805 female employees from two factories of a manufacturing company in Japan completed a self-administered questionnaire comprising the scales measuring JI (Job Content Questionnaire), RA (National Institute for Occupational Safety and Health Generic Job Stress Questionnaire), psychological distress (K6 scale), and potential confounders (i.e., age, education, family size, occupational class, and work shift). Taking psychological distress as a dependent variable, hierarchical multiple regression analyses were conducted by gender and employment status (i.e., permanent and non-permanent employees). An interaction term of JI * RA was included in the model. RESULTS: After adjusting for potential confounders, the main effects of JI and RA on psychological distress were significant regardless of gender or employment status. Furthermore, the significant interaction effect of JI * RA on psychological distress was observed among permanent male employees (beta = 0.053, p = 0.010). Post hoc simple slope analyses showed that the simple slope of JI was greater at higher levels of RA (i.e., one standard deviation [SD] above the mean) (beta = 0.300, p < 0.001) compared to lower levels of RA (i.e., one SD below the mean) (beta = 0.212, p < 0.001). On the other hand, the interaction effect of JI * RA was not significant among permanent or non-permanent female employees. CONCLUSIONS: The present study suggests that higher levels of RA strengthen the association of JI with psychological distress, at least among Japanese permanent male employees. PMID- 29327215 TI - Treatment outcomes of using inhalation sedation for comprehensive dental care. AB - AIM: To assess the outcomes of dental treatment under inhalation sedation within a UK specialist hospital setting. METHODS: This was a retrospective cohort study of the case notes of patients under 17 years of age who received dental treatment using inhalation sedation at a UK specialist setting during the period 2006-2011. Treatment outcomes were categorised into five groups: (1) treatment completed as planned, (2) modified treatment completed, (3) treatment abandoned in sedation unit and patient referred for treatment under general analgesia (GA), (4) treatment abandoned in sedation unit and patient referred for treatment under local analgesia (LA), (5) child failed to return to complete treatment. RESULTS: In total, the case notes of 453 patients were evaluated. The mean age of the patients was 10.3 +/- 2.9 years. Treatment was completed successfully in 63.6% of the cases, 15.9% were referred for treatment under GA, 11.2% failed to return to complete the treatment, 7.1% received modified treatment completed, and only 2.2% were referred for treatment under LA. Treatment outcomes were significantly associated with patient's age (p = 0.002). The treatment outcome "treatment abandoned and child referred to be treated under GA" had significantly lower mean patient ages than the other outcomes. CONCLUSIONS: The majority of children referred for inhalation sedation, completed their course of treatment. A significantly higher proportion of those in the younger age group required GA to complete their treatment. PMID- 29327216 TI - Dental erosion, prevalence and risk factors among a group of adolescents in Stockholm County. AB - AIMS: To investigate the prevalence and risk factors of dental erosion (DE) among a group of adolescents in Stockholm County. MATERIALS AND METHODS: This cross sectional cohort study was conducted at three clinics of the Public Dental Service in Stockholm County. Fifteen and 17 year old adolescents (1335) who scheduled their regular dental health examination were asked to participate. After drop-outs a sample of 1071 individuals, 547 males and 524 females were enrolled in the study. Presence of erosive wear was diagnosed (yes/no) on marker teeth by trained dentists/dental hygienists and photographs were taken. The adolescents answered a questionnaire regarding oral symptoms, dietary and behavioural factors. Two calibrated specialist dentists performed evaluation of the photographs for severity of DE using a modified version of the Simplified Erosion Partial Recording System (SEPRS). RESULTS: DE was clinically diagnosed in 28.3% of 15 years old and 34.3% of 17 years old. Severe erosive wear (grade 3 and 4 according to SEPRS) was found in 18.3% of the adolescents based upon the intra oral photographs. DE was more prevalent and severe among males than females. Clinically diagnosed erosive lesions correlated significantly with soft drink consumption (p < 0.001), the use of juice or sport drinks as a thirst quencher after exercise (p = 0.006) and tooth hypersensitivity when eating and drinking (p = 0.012). Furthermore, self-assessed gastric reflux was a factor strongly associated with DE (p < 0.001). CONCLUSION: The study indicated that DE was common among adolescents in Stockholm County and associated with both internal and external risk factors. PMID- 29327217 TI - Cryobiotechnology of apple (Malus spp.): development, progress and future prospects. AB - KEY MESSAGE: Cryopreservation provides valuable genes for further breeding of elite cultivars, and cryotherapy improves the production of virus-free plants in Malus spp., thus assisting the sustainable development of the apple industry. Apple (Malus spp.) is one of the most economically important temperate fruit crops. Wild Malus genetic resources and existing cultivars provide valuable genes for breeding new elite cultivars and rootstocks through traditional and biotechnological breeding programs. These valuable genes include those resistant to abiotic factors such as drought and salinity, and to biotic factors such as fungi, bacteria and aphids. Over the last three decades, great progress has been made in apple cryobiology, making Malus one of the most extensively studied plant genera with respect to cryopreservation. Explants such as pollen, seeds, in vivo dormant buds, and in vitro shoot tips have all been successfully cryopreserved, and large Malus cryobanks have been established. Cryotherapy has been used for virus eradication, to obtain virus-free apple plants. Cryopreservation provided valuable genes for further breeding of elite cultivars, and cryotherapy improved the production of virus-free plants in Malus spp., thus assisting the sustainable development of the apple industry. This review provides updated and comprehensive information on the development and progress of apple cryopreservation and cryotherapy. Future research will reveal new applications and uses for apple cryopreservation and cryotherapy. PMID- 29327218 TI - Online Communication about Depression and Anxiety among Twitter Users with Schizophrenia: Preliminary Findings to Inform a Digital Phenotype Using Social Media. AB - Digital technologies hold promise for supporting the detection and management of schizophrenia. This exploratory study aimed to generate an initial understanding of whether patterns of communication about depression and anxiety on popular social media among individuals with schizophrenia are consistent with offline representations of the illness. From January to July 2016, posts on Twitter were collected from a sample of Twitter users who self-identify as having a schizophrenia spectrum disorder (n = 203) and a randomly selected sample of control users (n = 173). Frequency and timing of communication about depression and anxiety were compared between groups. In total, the groups posted n = 1,544,122 tweets and users had similar characteristics. Twitter users with schizophrenia showed significantly greater odds of tweeting about depression compared with control users (OR = 2.69; 95% CI 1.76-4.10), and significantly greater odds of tweeting about anxiety compared with control users (OR = 1.81; 95% CI 1.20-2.73). This study offers preliminary insights that Twitter users with schizophrenia may express elevated symptoms of depression and anxiety in their online posts, which is consistent with clinical characteristics of schizophrenia observed in offline settings. Social media platforms could further our understanding of schizophrenia by informing a digital phenotype and may afford new opportunities to support early illness detection. PMID- 29327220 TI - Patient Perceptions and Preferences for a Mealtime Insulin Delivery Patch. AB - INTRODUCTION: A basal-bolus insulin regimen is needed to achieve glycated hemoglobin A1c (HbA1c) below 7.0% in people with type 1 (T1D) or type 2 (T2D) diabetes who have significant loss of beta-cell function. Nonadherence to therapy is common and negatively affects the ability to reach treatment goals. We examined patient assessment of a new, wearable mealtime insulin-delivery system (patch) relative to their current mealtime insulin-delivery system (syringe, pen, or pump). The patch is designed to deliver only boluses of fast-acting insulin (no basal insulin), mechanically controlled by the patient. METHODS: Adults (n = 101) with T1D or T2D assessed their current mealtime insulin-delivery system and then assessed simulated (no active medication) patch use over a 3-day period. Participants evaluated mealtime insulin-delivery systems using eight measures from five domains (convenience, interference with daily activities, diabetes related worry, psychological well-being, and overall satisfaction/preference) on the self-administered Insulin Delivery System Rating Questionnaire. User ratings of their current insulin-delivery systems (syringe, pen, pump) were compared with those for the patch by repeated measure analysis of variance and one-sample t tests. RESULTS: Participants had significant (p < 0.05) preference for patch over syringe in all eight comparisons, and over pen in five out of eight comparisons, with no significant preference for pen. Although there was a preference for patch over pump in six out of eight comparisons, only one showed a significant preference for patch, and one for pump. Significantly more participants reported that they would like to switch to the patch than continue using a syringe (78% vs 22%) or pen (76% vs 24%) but this difference was not significant for the group using a pump (52% vs 48%). CONCLUSIONS: Participants preferred using the patch over pens and syringes. Its ease of use and discreet method of insulin delivery may contribute to improved patient adherence to mealtime insulin regimens among people currently using injection devices. FUNDING: Calibra Medical. PMID- 29327221 TI - Whole cell solid-state NMR study of Chlamydomonas reinhardtii microalgae. AB - In vivo or whole-cell solid-state NMR is an emerging field which faces tremendous challenges. In most cases, cell biochemistry does not allow the labelling of specific molecules and an in vivo study is thus hindered by the inherent difficulty of identifying, among a formidable number of resonances, those arising from a given molecule. In this work we examined the possibility of studying, by solid-state NMR, the model organism Chlamydomonas reinhardtii fully and non specifically 13C labelled. The extension of NMR-based dynamic filtering from one dimensional to two-dimensional experiments enabled an enhanced selectivity which facilitated the assignment of cell constituents. The number of resonances detected with these robust and broadly applicable experiments appears to be surprisingly sparse. Various constituents, notably galactolipids abundant in organelle membranes, carbohydrates from the cell wall, and starch from storage grains could be unambiguously assigned. Moreover, the dominant crystal form of starch could be determined in situ. This work illustrates the feasibility and caveats of using solid-state NMR to study intact non-specifically 13C labelled micro-organisms. PMID- 29327223 TI - One-bone forearm osteodesis and biceps re-routing to correct severe supination contracture in a paediatric patient with late obstetric brachial plexus palsy. AB - PURPOSE: The one-bone forearm arthrodesis has been performed to change the position of the forearm in children with fixed supination deformity due to upper extremity neurologic deficit. In this article, we present a retrospective review of children with late obstetric brachial plexus palsy who underwent palliative surgery to correct severe supination contracture by one-bone forearm osteodesis and biceps re-routing. This technique has not been described previously. MATERIALS AND METHODS: In this retrospective study, four consecutive patients with upper extremity weakness and severe supination contracture who underwent forearm osteodesis in neutral or slight pronation and biceps re-routing. The average age of patients at the time of surgery was 12 years six months (range, 7 14 years). RESULTS: The average follow-up was one year ten months (range, 1 year 6 months to 2 years 7 months). The rotation of the forearm set in neutral (3 patients) and 15 degrees pronation (1 patient). No patients noted adverse effects on the shoulder, elbow or wrist, and none missed having forearm rotation. CONCLUSIONS: One-bone forearm osteodesis and biceps re-routing technique should be considered in some patients with fixed forearm supination deformity and concomitant severe pronation deficit. In this group of patients, repositioning the forearm in a more pronated (or less supinated) position may improve the use of that extremity in activities of daily living. The surgical technique is fairly simple and can be done in a single procedure. PMID- 29327222 TI - (3, 2)D 1H, 13C BIRDr,X-HSQC-TOCSY for NMR structure elucidation of mixtures: application to complex carbohydrates. AB - Overlap of NMR signals is the major cause of difficulties associated with NMR structure elucidation of molecules contained in complex mixtures. A 2D homonuclear correlation spectroscopy in particular suffers from low dispersion of 1H chemical shifts; larger dispersion of 13C chemical shifts is often used to reduce this overlap, while still providing the proton-proton correlation information e.g. in the form of a 2D 1H, 13C HSQC-TOCSY experiment. For this methodology to work, 13C chemical shift must be resolved. In case of 13C chemical shifts overlap, 1H chemical shifts can be used to achieve the desired resolution. The proposed (3, 2)D 1H, 13C BIRDr,X-HSQC-TOCSY experiment achieves this while preserving singlet character of cross peaks in the F1 dimension. The required high-resolution in the 13C dimension is thus retained, while the cross peak overlap occurring in a regular HSQC-TOCSY experiment is eliminated. The method is illustrated on the analysis of a complex carbohydrate mixture obtained by depolymerisation of a fucosylated chondroitin sulfate isolated from the body wall of the sea cucumber Holothuria forskali. PMID- 29327224 TI - Prevalence and clinical characteristics of headache in juvenile myoclonic epilepsy: experience from a tertiary epilepsy center. AB - The comorbidity of headache and epilepsy is often seen in neurological practice. The objective of this study was to assess the prevalence, types of, and risk factors for headache in juvenile myoclonic epilepsy (JME). We assessed a total of 200 patients and 100 healthy controls in our study. Headache was classified in participants using a self-administered questionnaire. Demographical, clinical features and headache characteristics were recorded. Seizure and headache temporal profiles were noted. Headache was present in 111 (56%) patients and 50 (50%) healthy participants. From these patients, 47 (42.3%) JME patients had migraine [30 (27%) migraine without aura (MO), 17 (15.3%) migraine with aura (MA)], 52 (46.8%) had tension type headache (TTH), 4 (3.6%) had both migraine and TTH, and 8 (7.2%) had other non-primary headaches. In the healthy control group, migraine was detected in 16 (32%) subjects, TTH in 33 (66%), both migraine and TTH in 1 (2%) subject. A positive migraine family history and symptom relief with sleep were more frequent in JME patients (p = 0.01). Headache was classified as inter-ictal in 82 (79.6%) patients and peri-ictal in 21 (20.4%) patients. In conclusion, the present study revealed that headache frequency was not significantly different between JME patients and healthy controls (p > 0.05). However, migraine frequency was higher in JME patients than healthy controls. Some migraine and TTH characteristics were different in between groups. We suggest that our results support both genetic relationship and shared underlying hypothetical pathopysiological mechanisms between JME and headache, especially migraine. PMID- 29327219 TI - Pharmacological Insights into the Use of Apomorphine in Parkinson's Disease: Clinical Relevance. AB - The present paper consists of a comprehensive review of the literature on apomorphine pharmacological properties and its usefulness in Parkinson's disease (PD). The chemistry, structure-activity relationship, pharmacokinetics and pharmacodynamics of apomorphine are described with regard to its effects on PD symptoms, drug interactions, interindividual variability and adverse events. Apomorphine chemical structure accounts for most of its beneficial and deleterious properties, both dopaminergic and non-dopaminergic. Its pharmacokinetics and pharmacodynamics are complex and subject to interindividual variability, particularly for subcutaneous absorption and metabolism. Subcutaneous apomorphine, either as injections or infusion, is particularly useful for the treatment of PD motor symptoms and growing evidence supports its clinical value for nonmotor disorders. Owing to interindividual variability and sensitivity, apomorphine treatment must be tailored to each patient. While the subcutaneous route has been the gold standard for decades, the search for alternative routes is ongoing, with promising results from studies of pulmonary, sublingual and transdermal routes. In addition, the potential of apomorphine as a disease-modifying therapy deserves to be investigated, as well as its ability to induce brain plasticity through chronic infusion. Moreover, the ongoing progress in the development of analytical methods should be accompanied by new pharmacokinetic and pharmacodynamic studies of apomorphine metabolism and sites of action in humans, as its biochemistry has yet to be fully described. PMID- 29327226 TI - Type D Personality and Sleep Quality in Coronary Artery Disease Patients With and Without Obstructive Sleep Apnea: Mediating Effects of Anxiety and Depression. AB - PURPOSE: The study aimed to examine the association between type D personality trait and sleep quality in coronary artery disease (CAD) patients with and without obstructive sleep apnea (OSA) and to explore the mediating effects of anxiety and depression symptoms. METHOD: A cross-sectional study was performed in 879 CAD patients attending cardiac rehabilitation program (mean age 57.8 years; SD = 9.0; 75% men). Participants underwent full-night polysomnography and were classified in OSA (n = 349) and no OSA (n = 530) groups. Patients were evaluated for type D personality, subjective sleep quality (Pittsburgh sleep quality index), and symptoms of anxiety and depression (hospital anxiety and depression scale). RESULTS: Patients with type D personality reported poorer subjective sleep quality than non-type D patients irrespective of the presence of OSA. Type D and negative affectivity (NA) were associated with worse subjective sleep quality in patients with OSA and without OSA. The mediational analysis revealed that type D and NA were indirectly associated with Pittsburgh sleep quality index through anxiety and depression symptoms in no OSA and OSA patients. CONCLUSION: In CAD patients, type D personality and NA are associated with worse subjective sleep quality and this association is mediated by depression and anxiety symptoms irrespective of OSA presence. PMID- 29327225 TI - News on the journal Neurological Sciences in 2017. PMID- 29327228 TI - Postoperative intermittent fasting prevents hippocampal oxidative stress and memory deficits in a rat model of chronic cerebral hypoperfusion. AB - PURPOSE: Whether intermittent fasting (IF) treatment after stroke can prevent its long-term detrimental effects remains unknown. Here, we investigate the effects of postoperative IF on cognitive deficits and its underlying mechanisms in a permanent two-vessel occlusion (2VO) vascular dementia rat model. METHODS: Rats were subjected to either IF or ad libitum feeding 1 week after 2VO surgery. The cognition of rats was assessed using the novel object recognition (NOR) task and Morris water maze (MWM) 8 weeks after surgery. After behavioral testing, hippocampal malondialdehyde (MDA) and glutathione (GSH) concentrations, superoxide dismutase (SOD) activity, gene expression of antioxidative enzymes, inflammatory protein levels, and microglia density were determined. RESULTS: Postoperative IF significantly ameliorated the cognitive performance of 2VO rats in the NOR and MWM tests. Cognitive enhancement paralleled preservation of the PSD95 and BDNF levels in the 2VO rat hippocampus. Mechanistically, postoperative IF mitigated hippocampal oxidative stress in 2VO rats, as indicated by the reduced MDA concentration and mRNA and the protein levels of the reactive oxygen species-generating enzyme nicotinamide adenine dinucleotide phosphate oxidase 1. IF treatment also preserved the GSH level and SOD activity, as well as the levels of their upstream regulating enzymes, resulting in preserved antioxidative capability. In addition, postoperative IF prevented hippocampal microglial activation and elevation of sphingosine 1-phosphate receptor 1 and inflammatory cytokines in 2VO rats. CONCLUSIONS: Our results suggest that postoperative IF suppresses neuroinflammation and oxidative stress induced by chronic cerebral ischemia, thereby preserving cognitive function in a vascular dementia rat model. PMID- 29327229 TI - Leopoldia comosa prevents metabolic disorders in rats with high-fat diet-induced obesity. AB - PURPOSE: Obesity is the main feature of a complex illness known as metabolic syndrome. Anti-obesogenic therapies are often associated with side effects and represent a high cost in conventional pharmacological approaches. New strategies based on natural remedies are under continuous investigation. Leopoldia comosa (L.) Parl. (L. comosa) is a spontaneous plant with diuretic, anti-inflammatory and antioxidant properties. Recently, a hypoglycemic activity mediated by inhibition of carbohydrate digestion has been identified. The aim of this study was to evaluate the effects of a diet supplemented with L. comosa extracts on a rat model of diet-induced obesity. METHODS: Leopoldia comosa bulb extracts were obtained using a dynamic extractor. Phytochemical properties and in vitro determination of the antioxidant activity and of the inhibitory effects on lipase and pancreatic amylase were performed. Rats were fed (12 weeks) a standard diet, or a high-fat diet (HFD), or an HFD plus L. comosa (20 or 60 mg/die) extracts. The metabolic and anthropometric parameters were recorded. RESULTS: Results indicated that L. comosa inhibited lipase and pancreatic amylase activities. In vivo data showed that the supplementation with both doses of L. comosa extracts counteracted the HFD-dependent effects. It reduced body weight, abdominal obesity and dyslipidemia, and improved glucose tolerance with a reduction of lipidic tissue hypertrophy and liver steatosis, as compared to HFD-fed rat. In liver, L. comosa reduced protein expression levels of PEPCK and G6Pase. CONCLUSION: We suggest that L. comosa extracts prevent obesity-dependent metabolic disorders. This paves the way for their therapeutic application as a natural anti-obesity drug. PMID- 29327227 TI - Structural characterization of a novel full-length transcript promoter from Horseradish Latent Virus (HRLV) and its transcriptional regulation by multiple stress responsive transcription factors. AB - KEY MESSAGE: The promoter fragment described in this study can be employed for strong transgene expression under both biotic and abiotic stress conditions. Plant-infecting Caulimoviruses have evolved multiple regulatory mechanisms to address various environmental stimuli during the course of evolution. One such mechanism involves the retention of discrete stress responsive cis-elements which are required for their survival and host-specificity. Here we describe the characterization of a novel Caulimoviral promoter isolated from Horseradish Latent Virus (HRLV) and its regulation by multiple stress responsive Transcription factors (TFs) namely DREB1, AREB1 and TGA1a. The activity of full length transcript (Flt-) promoter from HRLV (- 677 to + 283) was investigated in both transient and transgenic assays where we identified H12 (- 427 to + 73) as the highest expressing fragment having ~ 2.5-fold stronger activity than the CaMV35S promoter. The H12 promoter was highly active and near-constitutive in the vegetative and reproductive parts of both Tobacco and Arabidopsis transgenic plants. Interestingly, H12 contains a distinct cluster of cis-elements like dehydration-responsive element (DRE-core; GCCGAC), an ABA-responsive element (ABRE; ACGTGTC) and as-1 element (TGACG) which are known to be induced by cold, drought and pathogen/SA respectively. The specific binding of DREB1, AREB1 and TGA1a to DRE, ABRE and as-1 elements respectively were confirmed by the gel binding assays using H12 promoter-specific probes. Detailed mutational analysis of the H12 promoter suggested that the presence of DRE-core and as-1 element was indispensable for its activity which was further confirmed by the transactivation assays. Our studies imply that H12 could be a valuable genetic tool for regulated transgene expression under diverse environmental conditions. PMID- 29327231 TI - Loading of the Condylar Cartilage Can Rescue the Effects of Botox on TMJ. AB - The purpose of this study is to evaluate whether the effects of botulinum neurotoxin (botox) injection into the masseter in the mandibular condylar cartilage (MCC) and subchondral bone could be rescued by compressive loading of the temporomandibular joint (TMJ). Twenty-four 6-week-old female mice (C57BL/6J) were used. Mice were divided in three groups: (1) Botox (n = 8); (2) Botox plus loading (n = 8); (3) Pure control (n = 8). Bone labels (3 and 1 day before sacrifice) and the proliferation marker EdU (2 and 1 day before sacrifice) were intraperitoneally injected into all groups of mice. Condyles were dissected and examined by micro-CT and histology. Sagittal sections of condyles were stained for TRAP, alkaline phosphatase, EdU, TUNEL, and toluidine blue. In addition, immunostaining for pSmad, VEGF, and Runx2 was performed. Bone volume fraction, tissue density, and trabecular thickness were significantly decreased on the subchondral bone of botox-injected side when compared to control side and control mice, 4 weeks after injection. Furthermore, histological analysis revealed decrease in mineralization, matrix deposition, TRAP activity, EdU, and TUNEL positive cells in the MCC of the botox-injected side, 4 weeks after injection. However, compressive loading reversed the reduced bone volume and density and the cellular changes in the MCC caused by Botox injection. TMJ compressive loading rescues the negative effects of botox injection into the masseter in the MCC and subchondral bone. PMID- 29327230 TI - Alcohol, alcoholic beverages, and melanoma risk: a systematic literature review and dose-response meta-analysis. AB - PURPOSE: Several studies in recent years have investigated the relationship between alcohol intake and melanoma risk, with conflicting results. To help clarify this issue, we conducted a literature review and dose-response meta analysis of studies published until June 30th, 2017, that examined the association between alcohol intake (overall and by beverage type) and melanoma risk. METHODS: We used random effect models with maximum likelihood estimation to calculate summary relative risk (SRR) and 95% confidence intervals (95%CI). RESULTS: We included 20 independent studies (encompassing 10,555 melanoma cases and over 1.6 million non-cases/controls) published during 1986-2016, of which six had a prospective cohort study design. Adjustment for phenotypic characteristics and sunlight exposure was performed in 11 and nine studies, respectively. Alcohol intake was moderately associated with melanoma risk: the SRR were 1.29 (95% CI 1.14-1.45) for those in the highest vs. lowest category of current alcohol intake, and 1.96 (95% CI 1.02-3.76, I2 = 0%) for cumulative intake. In the dose response analysis, the increase in risk associated with a 10 g increment in daily alcohol intake was 1.07 (95% CI 1.03-1.11). Risk estimates did not differ by gender, study design and adjustment for confounders; between-studies heterogeneity was acceptable, and there was no evidence of publication bias. CONCLUSIONS: Our findings suggest that alcohol drinking may be moderately associated with increased melanoma risk, although residual confounding and bias cannot be ruled out. Further research is needed to confirm these findings, clarify the role of the different alcohol sources, and investigate the interaction with known melanoma risk factors. PMID- 29327232 TI - Comparative evaluation of the Omniplex-HPV and RFMP HPV PapilloTyper for detecting human papillomavirus genotypes in cervical specimens. AB - Human papillomavirus (HPV) is a major cause of cervical neoplasia development. HPV screening is very important because early treatment can prevent cervical cancer. Omniplex-HPV is a polymerase chain reaction followed by Luminex xMAP bead microarray technology that is designed for detecting 40 HPV genotypes. The aim of this study is to evaluate the analytical and clinical performance of the Omniplex HPV in comparison with that of the commercially available RFMP (restriction fragment mass polymorphism) HPV PapilloTyper. A total of 2,808 cervical swab specimens were obtained. Of these, only 1799 specimens had a cytology result. A type-specific direct sequencing test was performed using the reference method in case of discrepancies between the two test results. The overall percent agreement (OPA) between Omniplex-HPV and RFMP HPV PapilloTyper was 97.9% (kappa=0.84; 95% CI: 0.81-0.88). The positive percent agreement (PPA) and the negative percent agreement (NPA) were 98.0% and 96.2%, respectively. The Omniplex-HPV and RFMP HPV PapilloTyper showed comparable sensitivities (90.2% and 91.9%, respectively) and specificities (91.3% each), while the Omniplex-HPV produced more accurate results and required less turnaround time and labor. The agreement between these two methods was excellent for HPV genotyping (P>0.05; McNemar's test), and clinical sensitivity, specificity, and odds ratio of the two assays were comparable to the result of cytology tests in identifying high risk HPV. In conclusion, Omniplex HPV and RFMP HPV PapilloTyper were highly comparable with regard to detection and genotyping analysis of HPV. PMID- 29327233 TI - DCAF1 is involved in HCV replication through regulation of miR-122. AB - Hepatitis C virus (HCV) is a worldwide threaten to human health with a high ratio of chronic infections. Recently, we found that Vpr-mediated regulation of HCV replication depends on the host protein DDB1-Cul4 associate factor 1 (DCAF1), implying that DCAF1 might be involved in the replication of HCV. In this study, we demonstrated that DCAF1 knockdown reduced HCV replication both in the infectious (JFH1) and replicon (Con1) systems. Further investigation showed a negative regulation of HCV internal ribosome entry site (IRES)-mediated translation by DCAF1. Considering the positive effects on the replication of the HCV replicon, we speculated that DCAF1 affected the balance between HCV RNA replication and protein translation. Since miR-122 is involved in the regulation of this balance, we investigated the influence of DCAF1 on miR-122 expression. By measuring the expression of miR-122, pre-miR-122 and its target CAT-1 mRNA, we found that miR-122 was downregulated following DCAF1 knockdown. Furthermore, overexpression of miR-122 rescued HCV replication impairment induced by DCAF1 knockdown. In conclusion, our study suggests that DCAF1 is involved in HCV replication through regulation of miR-122 and thus provides new insights into the interaction between HCV and the host cell. PMID- 29327234 TI - Antiviral effect of lithium chloride on replication of avian leukosis virus subgroup J in cell culture. AB - Lithium chloride (LiCl) has been reported to possess antiviral activity against several viruses. In the current study, we assessed the antiviral activity effect of LiCl on ALV-J infection in CEF cells by using real-time PCR, Western blot analysis, IFA and p27 ELISA analysis. Our results showed that both viral RNA copy number and protein level decreased significantly in a dose and time dependent manner. Time-course analysis revealed that the antiviral effect was more pronounced when CEFs were treated at the post infection stage rather than at early absorption or pre-absorption stages. Further experiments demonstrated that LiCl did not affect virus attachment or entry, but rather affected early virus replication. We also found that inhibition of viral replication after LiCl treatment was associated with reduced mRNA levels of pro-inflammatory cytokines. These results demonstrate that LiCl effectively blocked ALV-J replication in CEF cells and may be used as an antiviral agent against ALV-J. PMID- 29327235 TI - Complete genome sequence of a phage hyperparasite of Candidatus Xenohaliotis californiensis (Rickettsiales) - a pathogen of Haliotis spp (Gasteropoda). AB - Bacteriophages are recognized as major mortality agents of microbes, among them intracellular marine rickettsiales-like bacteria. Recently, a phage hyperparasite of Candidatus Xenohaliotis californiensis (CXc) has been described. This bacterium is considered the causal agent of Withering Syndrome (WS) which is a chronic and potentially lethal disease of abalone species from California, USA and the peninsula of Baja California, Mexico. This hyperparasite which infects CXc could be used as a biocontrol agent for WS. Therefore, it is necessary to obtain genomic information to characterize this phage. In this study, the first complete genome sequence of a novel phage, Xenohaliotis phage (pCXc) was determined. The complete genome of pCXc from red abalone (Haliotis rufescens) is 35,728 bp, while the complete genome of pCXc from yellow abalone (Haliotis corrugata) is 35,736 bp. Both phage genomes consist of double-stranded DNA with a G + C content of 38.9%. In both genomes 33 open reading frames (ORFs) were predicted. Only 10 ORFs encode proteins that have identifiable functional homologues. These 10 ORFs were classified by function, including structural, DNA replication, DNA packaging, nucleotide transport and metabolism, life cycle regulation, recombination and repair, and additional functions. A PCR method for the specific detection of pCXc was developed. This information will help to understand a new group of phages that infect intracellular marine rickettsiales like bacteria in mollusks. PMID- 29327236 TI - Complete genome sequence and construction of an infectious full-length cDNA clone of a German isolate of celery mosaic virus. AB - The complete genome sequence of a German isolate of celery mosaic virus (CeMV, a potyvirus) from Quedlinburg (DSMZ PV-1003) was determined (MF962880). This represents the second fully sequenced genome of this virus, along with a Californian isolate (HQ676607.1). The positive-sense single-stranded RNA is 10,000 nucleotides in length and shows the typical organization of potyviruses but has a shorter PIPO than CeMV California. In comparison to CeMV isolates from different origins, CeMV-Quedlinburg and isolates from the Netherlands (AF203531.1) and Aschersleben, Germany (AJ271087.1) show a NAG instead of DAG in the region of the coat protein responsible for aphid transmission. In this study the first infectious full-length clone of celery mosaic virus was obtained and the infectivity confirmed by Rhizobium radiobacter infiltration of Apium species. PMID- 29327237 TI - Regional, age and respiratory-secretion-specific prevalence of respiratory viruses associated with asthma exacerbation: a literature review. AB - Despite increased understanding of how viral infection is involved in asthma exacerbations, it is less clear which viruses are involved and to what extent they contribute to asthma exacerbations. Here, we sought to determine the prevalence of different respiratory viruses during asthma exacerbations. Systematic computerized searches of the literature up to June 2017 without language limitation were performed. The primary focus was on the prevalence of respiratory viruses, including AdV (adenovirus), BoV (bocavirus), CoV (coronavirus), CMV (cytomegalovirus), EnV (enterovirus), HSV (herpes simplex virus), IfV (influenza virus), MpV (metapneumovirus), PiV (parainfluenzavirus), RV (rhinovirus) and RSV (respiratory syncytial virus) during asthma exacerbations. We also examined the prevalence of viral infection stratified by age, geographic region, type of respiratory secretion, and detection method. Sixty articles were included in the final analysis. During asthma exacerbations, the mean prevalence of AdV, BoV, CoV, CMV, EnV, HSV, IfV, MpV, PiV, RV and RSV was 3.8%, 6.9%, 8.4%, 7.2%, 10.1%, 12.3%, 10.0%, 5.3%, 5.6%, 42.1% and 13.6%, respectively. EnV, MPV, RV and RSV were more prevalent in children, whereas AdV, BoV, CoV, IfV and PiV were more frequently present in adults. RV was the major virus detected globally, except in Africa. RV could be detected in both the upper and lower airway. Polymerase chain reaction was the most sensitive method for detecting viral infection. Our findings indicate the need to develop prophylactic polyvalent or polyvirus (including RV, EnV, IfV and RSV) vaccines that produce herd immunity and reduce the healthcare burden associated with virus-induced asthma exacerbations. PMID- 29327238 TI - The complete genome sequence of HetPV20-an1, an alphapartitivirus infecting the conifer-pathogenic fungus Heterobasidion annosum. AB - Root rot fungi of the genus Heterobasidion are highly destructive conifer pathogens in the northern Boreal forest region. This report describes the complete genome sequence of Heterobasidion partitivirus 20 infecting a Finnish strain of Heterobasidion annosum. The bisegmented dsRNA genome of HetPV20-an1 encodes a predicted RNA-dependent RNA polymerase of 605 amino acids (aa) and a capsid protein of 536 aa. Based on sequence similarity and phylogenetic analysis, this virus is a new member of the genus Alphapartitivirus. HetPV20-an1 shares ~65% RdRP aa sequence identity with the most similar virus strain, Rosellinia necatrix partitivirus 2, whereas the CP of HetPV20-an1 is most similar to that of rose partitivirus with ~27% overall aa sequence identity. HetPV20-an1 is only distantly related to previously known partitiviruses of Heterobasidion species and shares ~29% RdRP aa sequence identity and ~16% CP aa sequence identity with Heterobasidion partitivirus 1 from H. abietinum. PMID- 29327239 TI - A small protein probe for correlated microscopy of endogenous proteins. AB - Probes are essential to visualize proteins in their cellular environment, both using light microscopy as well as electron microscopy (EM). Correlated light microscopy and electron microscopy (CLEM) requires probes that can be imaged simultaneously by both optical and electron-dense signals. Existing combinatorial probes often have impaired efficiency, need ectopic expression as a fusion protein, or do not target endogenous proteins. Here, we present FLIPPER-bodies to label endogenous proteins for CLEM. Fluorescent Indicator and Peroxidase for Precipitation with EM Resolution (FLIPPER), the combination of a fluorescent protein and a peroxidase, is fused to a nanobody against a target of interest. The modular nature of these probes allows an easy exchange of components to change its target or color. A general FLIPPER-body targeting GFP highlights histone2B-GFP both in fluorescence and in EM. Similarly, endogenous EGF receptors and HER2 are visualized at nm-scale resolution in ultrastructural context. The small and flexible FLIPPER-body outperforms IgG-based immuno-labeling, likely by better reaching the epitopes. Given the modular domains and possibilities of nanobody generation for other targets, FLIPPER-bodies have high potential to become a universal tool to identify proteins in immuno-CLEM with increased sensitivity compared to current approaches. PMID- 29327240 TI - Geriatric oncology in Spain: survey results and analysis of the current situation. AB - INTRODUCTION: Geriatric oncology (GO) is a discipline that focuses on the management of elderly patients with cancer. The Spanish Society of Medical Oncology (SEOM) created a Working group dedicated to geriatric oncology in February 2016. OBJECTIVES: The main goal of this study was to describe the current situation in Spain regarding the management of elderly cancer patients through an online survey of medical oncologists. METHODS: A descriptive survey was sent to several hospitals by means of the SEOM website. A personal e-mail was also sent to SEOM members. RESULTS: Between March 2016 and April 2017, 154 answers were collected. Only 74 centers (48%) had a geriatrics department and a mere 21 (14%) medical oncology departments had a person dedicated to GO. The vast majority (n = 135; 88%) had the perception that the number of elderly patients with cancer seen in clinical practice had increased. Eighteen (12%) oncologists had specific protocols and geriatric scales were used at 55 (31%) centers. Almost all (92%) claimed to apply special management practices using specific tools. There was agreement that GO afforded certain potential advantages. Finally, 99% of the oncologists surveyed believed it and that training in GO had to be improved. CONCLUSIONS: From the nationwide survey promoted by the Spanish Geriatric Oncology Working Group on behalf of SEOM, we conclude that there is currently no defined care structure for elderly cancer patients. There is an increasing perception of the need for training in GO. This survey reflects a reality in which specific needs are perceived. PMID- 29327242 TI - Self-assembly of magnetically functionalized star-polymer nano-colloids. AB - We explore the potential of star-polymers that carry super-paramagnetic nano particles as end-groups with respect to the single-molecule self-assembly process. With the aid of molecular dynamics simulation, the configurations of these macromolecules are analyzed as a function of functionality, magnetic interaction strength, and the length of the polymeric arms. By means of an external magnetic field the nano-particles can be controlled to form static or dynamic dipolar chains, resulting in conformations of isolated stars that can be characterized by the average number of chains and length. The single-molecule conformation diagram in the plane of magnetic interaction strength vs. the star functionality is obtained. Further, the molecules are characterized by means of various shape and size order parameters. PMID- 29327241 TI - A SUVmax-based propensity matched analysis of stereotactic body radiotherapy versus surgery in stage I non-small cell lung cancer: unveiling the role of 18F FDG PET/CT in clinical decision-making. AB - BACKGROUND: The value of maximum standard uptake value (SUVmax) was overlooked in current studies comparing stereotactic body radiotherapy (SBRT) versus surgery for stage I non-small cell lung cancer (NSCLC). Herein, we aimed to compare the 3 year outcomes based on patients for whom SUVmax were available, and to explore the role of SUVmax in clinical decision-making. METHODS: From January 2010 to June 2016, data of eligible patients were collected. Patient variables and clinical outcomes were compared in both unmatched and matched groups using propensity score matching (PSM). Multivariate analysis was performed for predictors of poor outcome. The relationship between treatment approach and survival outcome was also evaluated in subgroup patients stratified by SUVmax level. RESULTS: A total of 425 patients treated with either surgery (325) or SBRT (100) were included. Patients receiving SBRT were significantly older, had a higher level of SUVmax and were more likely to have tumor of centrally located. Multivariate analysis showed that SUVmax and tumor size were significant predictors for 3-year OS, LRC, and PFS, while better PFS was also related to peripheral tumor and surgery. The result of PSM analysis also showed that compared to SBRT, surgery could only achieve better PFS. Subgroup analysis indicated that surgery had added advantage of 3-year LRC and PFS for patients in high SUVmax group (SUVmax > 8), but not in low SUVmax group. CONCLUSIONS: The study found a superior PFS after surgery while OS and LRC did not differ between SBRT and surgery. Surgery should be recommended for tumor of high SUVmax. PMID- 29327243 TI - Facile Synthesis of Wormhole-Like Mesoporous Tin Oxide via Evaporation-Induced Self-Assembly and the Enhanced Gas-Sensing Properties. AB - Wormhole-like mesoporous tin oxide was synthesized via a facile evaporation induced self-assembly (EISA) method, and the gas-sensing properties were evaluated for different target gases. The effect of calcination temperature on gas-sensing properties of mesoporous tin oxide was investigated. The results demonstrate that the mesoporous tin oxide sensor calcined at 400 degrees C exhibits remarkable selectivity to ethanol vapors comparison with other target gases and has a good performance in the operating temperature and response/recovery time. This might be attributed to their high specific surface area and porous structure, which can provide more active sites and generate more chemisorbed oxygen spices to promote the diffusion and adsorption of gas molecules on the surface of the gas-sensing material. A possible formation mechanism of the mesoporous tin oxide and the enhanced gas-sensing mechanism are proposed. The mesoporous tin oxide shows prospective detecting application in the gas sensor fields. PMID- 29327246 TI - Invited comment to: rates of and methods used at reoperation for recurrence after primary inguinal hernia repair with Prolene Hernia System and Lichtenstein. Magnusson J, Gustafsson UO, Nygren J, Thorell A. PMID- 29327244 TI - Antibody-based delivery of tumor necrosis factor (L19-TNFalpha) and interleukin-2 (L19-IL2) to tumor-associated blood vessels has potent immunological and anticancer activity in the syngeneic J558L BALB/c myeloma model. AB - PURPOSE: To analyze the impact of TNFalpha or IL2 on human lymphocytes in vitro and the anti-tumor and immune-modifying effects of L19-IL2 and L19-TNFalpha on subcutaneously growing J558L myeloma in immunocompetent mice. METHODS: PBMCs from three healthy volunteers were incubated with IL2, TNFalpha, or with IL2 plus addition of TNFalpha (final 20 h). BALB/c J558L mice with subcutaneous tumors were treated with intravenous L19-TNFalpha plus L19-IL2, or controls. Tumor growth and intra- and peri-tumoral tissues were analyzed for micro-vessel density, necrosis, immune cell composition, and PD1 or PD-L1 expressing cells. RESULTS: Exposure of PBMC in vitro to IL2, TNFalpha, or to IL2 over 3 and 5 days plus TNFalpha for the final 20 h resulted in an approximately 50 and 75% reduction of the CD25low effector cell/CD25high Treg cell ratio, respectively, compared to medium control. IL2 or TNFalpha increased the proportion of CD4- CD25low effector lymphocytes while reducing the proportion of CD4+ CD25low Teff cells. In the J558L myeloma model, tumor eradication was observed in 58, 42, 25, and 0% of mice treated with L19-TNFalpha plus L19-IL2, L19-TNFalpha, L19-IL2, and PBS, respectively. L19-TNFalpha/L19-IL2 combination caused tumor necrosis, capillary density doubling, peri-tumoral T cell and PD1+ T cell reduction (- 50%), and an increase in PD-L1+ myeloma cells. CONCLUSION: IL2, TNFalpha, or IL2 plus TNFalpha (final 20 h) increased the proportion of CD4- CD25low effector lymphocytes possibly indicating immune activation. L19-TNFalpha/L19-IL2 combination therapy eradicated tumors in J558L myeloma BALB/c mice likely via TNFalpha-induced tumor necrosis and L19-TNFalpha/L19-IL2-mediated local cellular immune reactions. PMID- 29327245 TI - High nuclear MSK1 is associated with longer survival in breast cancer patients. AB - PURPOSE: Mitogen- and stress-activated kinases (MSKs) are important substrates of the mitogen-activated protein kinase (MAPK)-activated protein kinase family. MSK1 and MSK2 are both nuclear serine/threonine protein kinases, with MSK1 being suggested to potentially play a role in breast cancer cell proliferation, cell cycle progression, cell migration, invasion and tumour growth. The aim of the current study was to assess MSK1 protein expression in breast cancer tumour specimens, evaluating its prognostic significance. METHODS: A large cohort of 1902 early stage invasive breast cancer patients was used to explore the expression of MSK1. Protein expression was examined using standard immunohistochemistry on tissue microarrays. RESULTS: Low MSK1 protein expression was associated with younger age (P = 0.004), higher tumour grade (P < 0.001), higher Nottingham Prognostic Index scores (P = 0.007), negative ER (P < 0.001) and PR (P < 0.001) status, and with triple-negative (P < 0.001) and basal-like (P < 0.001) phenotypes. Low MSK1 protein expression was significantly associated with shorter time to distant metastasis (P < 0.001), and recurrence (P = 0.013) and early death due to breast cancer (P = 0.01). This association between high MSK1 expression and improved breast cancer-specific survival was observed in the whole cohort (P = 0.009) and in the HER2-negative and non-basal like tumours (P = 0.006 and P = 0.024, respectively). Multivariate analysis including other prognostic variables indicated that MSK1 is not an independent marker of outcome. CONCLUSIONS: High MSK1 is associated with improved breast cancer-specific survival in early stage invasive breast cancer patients, and has additional prognostic value in HER2-negative and non-basal like disease. Although not an independent marker of outcome, we believe such findings and significant associations with well-established negative prognostic factors (age, grade, Nottingham Prognostic Index, hormone receptor status, time to distant metastasis, recurrence and triple-negative/basal-like status) warrant further examination and validation in independent patient cohorts. PMID- 29327247 TI - Comparing different modalities for the diagnosis of incisional hernia: a systematic review. AB - PURPOSE: Incisional hernia (IH) is the most frequent complication after abdominal surgery. The diagnostic modality, observer, definition, and diagnostic protocol used for the diagnosis of IH potentially influence the reported prevalence. The objective of this systematic review is to evaluate the diagnostic accuracy of different modalities used to identify IH. METHODS: Embase, MEDLINE OvidSP, Web of Science, Google Scholar, and Cochrane databases were searched to identify studies diagnosing IH. Studies comparing the IH detection rate of two different diagnostic modalities or inter-observer variability of one modality were included. Quality assessment of studies was done by Cochrane Collaboration's tool. Article selection and data collection were performed independently by two researchers. PROSPERO registration: CRD42017062307. RESULTS: Fifteen studies representing a total of 2986 patients were included. Inter-observer variation for CT-scan ranged from 11.2 to 69% (n = 678). Disagreement between ultrasound and CT scan ranged between 6.6 and 17% (n = 221). Ten studies compared physical examination to CT-scan or ultrasound. Disagreement between physical examination and imaging ranged between 7.6 and 39% (n = 1602). Between 15 and 58% of IHs were solely detected by imaging (n = 483). Relative increase in IH prevalence for imaging compared to physical examination ranged from 0.92 to 2.4 (n = 1922). CONCLUSIONS: Ultrasound or CT-scan will result in substantial additional IH diagnosis. Lack of consensus regarding the definition of IH might contribute to the disagreement rates. Both the observer and diagnostic modality used could be additional factors explaining variability in IH prevalence and should be reported in IH research. PMID- 29327249 TI - Neuronal damage and abnormal contraction: Is the circle of synchronicity complete? PMID- 29327250 TI - Letter regarding "Meta-analysis of 18F-FDG PET/CT in the diagnosis of infective endocarditis". PMID- 29327248 TI - Introducing new technology safely into urological practice. AB - PURPOSE: Surgical innovation is necessary to ensure continued improvement in patient care. However, several challenges unique to the surgical craft are encountered during the development and validation of such new technology. This article highlights some of these challenges and gives an overview of existing solutions. METHODS: A Pubmed review was performed about the "introduction of new technology" to identify challenges. Cross-referencing was used to explore the possible solutions per challenge. RESULTS: Several characteristics of the surgical craft itself limit our ability to establish randomised controlled trials and hence provide clear categorical evidence. Existing certification bodies for new technology often use unstructured regulations and allow fast-track bypassing systems. Consequently the IDEAL framework (innovation, development, exploration, assessment, long-term follow-up) proposes an objective scientific approach whilst defining stakeholder responsibilities. The selection of which new modality to implement is heavily influenced by third parties unrelated to the best patient outcomes and thus professional organisations can aid in this decision-making. Appropriate training of surgeons and their teams until proficiency is achieved is essential prior to credentialling. Finally long-term surveillance of outcomes in the form of registries is an increasing responsibility of the urological community to maintain our role in directing the adoption or rejection of these innovations. CONCLUSION: Urological innovation is a dynamic and challenging process. Increasing efforts are identified within the urological community to render the process more reliable and transparent. PMID- 29327251 TI - A practical method to reduce breast attenuation during SPECT myocardial perfusion imaging. PMID- 29327252 TI - Compared vulnerabilities to small cardiac motions between different cameras used for myocardial perfusion imaging. AB - : This phantom-based study was aimed to determine whether cardiac CZT-cameras, which provide an enhanced spatial resolution and image contrast compared to Anger cameras, are similarly affected by small cardiac motions. Translations of a left ventricular (LV) insert at half-SPECT acquisitions through six possible orthogonal directions and with 5- or 10-mm amplitude were simulated on the Discovery NM-530c and DSPECT CZT-cameras and on an Anger Symbia T2 camera equipped with an astigmatic (IQ.SPECT) or conventional parallel-hole collimator (Conv.SPECT). SPECT images were initially reconstructed as currently recommended for clinical routine. The heterogeneity in recorded activity from the 17 LV segments gradually increased between baseline and motions simulated at 5- and 10 mm amplitudes with all cameras, although being higher for Anger- than CZT-cameras at each step and resulting in a higher mean number of artifactual abnormal segments (at 10-mm amplitude, Conv. SPECT: 3.7; IQ. SPECT: 1.8, Discovery: 0.7, DSPECT: 0). However, this vulnerability to motion was markedly (1) decreased for Conv.SPECT reconstructed without the recommended Resolution Recovery algorithm and (2) increased for DSPECT reconstructed without the recommended cardiac model. CZT-cameras and especially the DSPECT appear less vulnerable to small cardiac motions than Anger-cameras although these differences are strongly dependent on reconstruction parameters. PMID- 29327253 TI - My warranty has expired: I need to be retested. AB - The concept of warranty period, the duration of time during which the patient's risk remains low, is appealing. However, some points remain to be resolved before its translation in the clinical arena. Methodological issues should be standardized in order to compare the results of studies in different patient populations. Also, the definition of a "normal" study should always take into consideration the history of prior revascularization, the achieved level of exercise, and the stressor used. The promise of warranty can be questioned by the patient's baseline demographic and clinical characteristics and may also be influenced by life-style modification in the course of the follow-up. The "warranty period" concept should shift from data reflecting the time to a cardiac event to the development of ischemia, given an opportunity for intervention before a cardiac event occurs. In this context, clarify the role of serial imaging can be extremely useful, in particular to evaluate if and when retesting a patient after a normal scan. PMID- 29327254 TI - Abnormal myocardial perfusion pattern in the absence of significant coronary artery stenosis. PMID- 29327255 TI - Gallium-68 DOTANOC scan in a patient with suspected cardiac sarcoidosis. PMID- 29327256 TI - Targeting atrial fibrillation promoting atrial structural remodeling: is this a viable strategy in patients with heart failure? PMID- 29327257 TI - Biomechanical Characterisation of Bone-anchored Implant Systems for Amputation Limb Prostheses: A Systematic Review. AB - Bone-anchored limb prostheses allow for the direct transfer of external loads from the prosthesis to the skeleton, eliminating the need for a socket and the associated problems of poor fit, discomfort, and limited range of movement. A percutaneous implant system for direct skeletal attachment of an external limb must provide a long-term, mechanically stable interface to the bone, along with an infection barrier to the external environment. In addition, the mechanical integrity of the implant system and bone must be preserved despite constant stresses induced by the limb prosthesis. Three different percutaneous implant systems for direct skeletal attachment of external limb prostheses are currently clinically available and a few others are under investigation in human subjects. These systems employ different strategies and have undergone design changes with a view to fulfilling the aforementioned requirements. This review summarises such strategies and design changes, providing an overview of the biomechanical characteristics of current percutaneous implant systems for direct skeletal attachment of amputation limb prostheses. PMID- 29327258 TI - Mental health problems of Syrian refugee children: the role of parental factors. AB - War-torn children are particularly vulnerable through direct trauma exposure as well through their parents' responses. This study thus investigated the association between trauma exposure and children's mental health, and the contribution of parent-related factors in this association. A cross-sectional study with 263 Syrian refugee children-parent dyads was conducted in Turkey. The Stressful Life Events Questionnaire (SLE), General Health Questionnaire, Parenting Stress Inventory (PSI-SF), Impact of Events Scale for Children (CRIES 8), and Strengths and Difficulties Questionnaire were used to measure trauma exposure, parental psychopathology, parenting-related stress, children's post traumatic stress symptoms (PTSS), and mental health problems, respectively. Trauma exposure significantly accounted for unique variance in children's PTSS scores. Parental psychopathology significantly contributed in predicting children's general mental health, as well as emotional and conduct problems, after controlling for trauma variables. Interventions need to be tailored to refugee families' mental health needs. Trauma-focused interventions should be applied with children with PTSD; whilst family-based approaches targeting parents' mental health and parenting-related stress should be used in conjunction with individual interventions to improve children's comorbid emotional and behavioural problems. PMID- 29327259 TI - 5-Aminolevulinic Acid-Squalene Nanoassemblies for Tumor Photodetection and Therapy: In Vitro Studies. AB - Protoporphyrin IX (PpIX) as natural photosensitizer derived from administration of 5-aminolevulinic acid (5-ALA) has found clinical use for photodiagnosis and photodynamic therapy of several cancers. However, broader use of 5-ALA in oncology is hampered by its charge and polarity that result in its reduced capacity for passing biological barriers and reaching the tumor tissue. Advanced drug delivery platforms are needed to improve the biodistribution of 5-ALA. Here, we report a new approach for the delivery of 5-ALA. Squalenoylation strategy was used to covalently conjugate 5-ALA to squalene, a natural precursor of cholesterol. 5-ALA-SQ nanoassemblies were formed by self-assembly in water. The nanoassemblies were monodisperse with average size of 70 nm, polydispersity index of 0.12, and zeta-potential of + 36 mV. They showed good stability over several weeks. The drug loading of 5-ALA was very high at 26%. In human prostate cancer cells PC3 and human glioblastoma cells U87MG, PpIX production was monitored in vitro upon the incubation with nanoassemblies. They were more efficient in generating PpIX-induced fluorescence in cancer cells compared to 5-ALA-Hex at 1.0 to 3.3 mM at short and long incubation times. Compared to 5-ALA, they showed superior fluorescence performance at 4 h which was diminished at 24 h. 5-ALA-SQ presents a novel nano-delivery platform with great potential for the systemic administration of 5-ALA. PMID- 29327260 TI - Lifetime study in mice after acute low-dose ionizing radiation: a multifactorial study with special focus on cataract risk. AB - Because of the increasing application of ionizing radiation in medicine, quantitative data on effects of low-dose radiation are needed to optimize radiation protection, particularly with respect to cataract development. Using mice as mammalian animal model, we applied a single dose of 0, 0.063, 0.125 and 0.5 Gy at 10 weeks of age, determined lens opacities for up to 2 years and compared it with overall survival, cytogenetic alterations and cancer development. The highest dose was significantly associated with increased body weight and reduced survival rate. Chromosomal aberrations in bone marrow cells showed a dose-dependent increase 12 months after irradiation. Pathological screening indicated a dose-dependent risk for several types of tumors. Scheimpflug imaging of the lens revealed a significant dose-dependent effect of 1% of lens opacity. Comparison of different biological end points demonstrated long-term effects of low-dose irradiation for several biological end points. PMID- 29327262 TI - Risk of Neoplastic Progression Among Patients with an Irregular Z Line on Long Term Follow-Up. AB - BACKGROUND: Barrett's esophagus (BE) is a known complication of gastroesophageal reflux disease. In a previous study, we described a high prevalence of intestinal metaplasia (IM) in patients with an irregular Z line. However, the clinical importance of this finding is unclear. GOALS: To evaluate the long-term development of BE and relevant complications in patients diagnosed with an irregular Z line, with or without IM, on routine esophago-gastro-duodenoscopy (EGD). METHODS: In our previously described cohort, 166 out of 2000 consecutive patients were diagnosed with an incidental irregular Z line. Of those with irregular Z line, 43% had IM. In this continuation study, patients' status was reassessed after a median follow-up of 70 months. Patients were divided into two groups: Patients with IM (IM-positive group) and without IM (IM-negative group). The incidence of long-term development of BE, dysplasia, and esophageal adenocarcinoma were compared between groups. RESULTS: At least one follow-up EGD was performed in 102 (61%) patients with an irregular Z line. Endoscopic evidence of BE was found in eight IM-positive patients (8/50 [16%]) and in one IM-negative patient (1/52 [1.9%]). Two (4%) IM-positive patients developed BE with low-grade dysplasia. None of the patients developed high-grade dysplasia, or esophageal adenocarcinoma. CONCLUSIONS: Patients with irregular Z line do not develop major BE complication in more than 5 years of follow-up. PMID- 29327261 TI - Chronic Rejection After Intestinal Transplant: Where Are We in Order to Avert It? AB - Chronic rejection affects the long-term survival of all solid organ transplants and, among intestinal allografts, occurs in up to 10% of the recipients. The insidious clinical evolution of the chronic allograft enteropathy, the absence of noninvasive biomarkers, and the late endoscopic findings delay its diagnosis. No pharmacological approach has been proven effective, and allograft removal nowadays still represents the only available therapy. The inclusion of the liver in the visceral allograft appears to be the only intervention affecting the development of chronic rejection, as revealed by large-center studies and registry reports. A significant body of evidence emerged from the experimental setting and provided essential knowledge on the complex mechanisms behind the development of chronic allograft enteropathy. More recently, donor-specific antibodies have been suggested as an early, key element in the natural history of chronic allograft enteropathy and several novel approaches, tackling the antibody mediated graft injury, have gained acceptance in clinical settings and are believed to impact on chronic rejection. The inclusion of a liver allograft is advocated when re-transplanting a sensitized recipient, due to its protective effect against humoral immunity. Multicenter trials are required to understand and tackle chronic rejection, and find the therapeutic answer to this clinical dilemma. PMID- 29327264 TI - Inline UV/Vis spectroscopy as PAT tool for hot-melt extrusion. AB - Hot-melt extrusion on co-rotating twin screw extruders is a focused technology for the production of pharmaceuticals in the context of Quality by Design. Since it is a continuous process, the potential for minimizing product quality fluctuation is enhanced. A typical application of hot-melt extrusion is the production of solid dispersions, where an active pharmaceutical ingredient (API) is distributed within a polymer matrix carrier. For this dosage form, the product quality is related amongst others to the drug content. This can be monitored on- or inline as critical quality attribute by a process analytical technology (PAT) in order to meet the specific requirements of Quality by Design. In this study, an inline UV/Vis spectrometer from ColVisTec was implemented in an early development twin screw extruder and the performance tested in accordance to the ICH Q2 guideline. Therefore, two API (carbamazepine and theophylline) and one polymer matrix (copovidone) were considered with the main focus on the quantification of the drug load. The obtained results revealed the suitability of the implemented PAT tool to quantify the drug load in a typical range for pharmaceutical applications. The effort for data evaluation was minimal due to univariate data analysis, and in combination with a measurement frequency of 1 Hz, the system is sufficient for real-time data acquisition. PMID- 29327263 TI - Proton Pump Inhibitors Increase the Susceptibility of Mice to Oral Infection with Enteropathogenic Bacteria. AB - BACKGROUND AND AIMS: Proton pump inhibitors (PPIs) are among the most frequently prescribed medications. Side effects including an increased risk of intestinal infections have been reported. It is assumed that PPIs can increase susceptibility to enteropathogens; however, the underlying mechanisms are unknown. Here in this study, we explored whether Lansoprazole (Laz), one of the PPIs, increases the susceptibility to enteropathogens, and further investigated the mechanism of it. METHODS: Mice were administered Laz intraperitoneally once daily and orally infected with Citrobacter rodentium (C. rodentium). The establishment of intestinal infection was assessed by histology and inflammatory cytokine expression levels measured by quantitative PCR. To test whether Laz changes the intestinal environment to influence the susceptibility, intestinal pH, microbiota, metabolites and immune cell distributions were evaluated via pH measurement, 16S rRNA gene sequencing, metabolome, and flow cytometry analyses after Laz administration. RESULTS: Colitis was induced with less C. rodentium in Laz-treated mice as compared with the controls. We found that increased numbers of C. rodentium could reach the cecum following Laz administration. Laz increased pH in the stomach but not in the intestines. It induced dysbiosis and changed the metabolite content of the small intestine. However, these changes did not lead to alterations of immune cell distribution. CONCLUSIONS: Laz raised susceptibility to C. rodentium as increased numbers of the pathogen reach the site of infection. Our results suggest that it was due to increased stomach pH which allowed more peroral enteropathogens to pass the stomach, but not because of changes of intestinal environment. PMID- 29327265 TI - Successful diagnosis of an occult fallopian tube carcinoma detected from the diaphragm metastasis. AB - We herein reported a rare case of an occult fallopian tube carcinoma first detected from the diaphragm metastasis. An 83-year-old woman who had a 30-mm tumor on the right diaphragm underwent radical resection. Pathologically, the tumor was diagnosed as a high-grade serous adenocarcinoma, suggesting metastasis from the pelvic visceral carcinoma. Although the primary site could not be detected by imaging examinations, laparoscopy revealed multiple peritoneal disseminations; therefore, total hysterectomy was performed. Finally, microscopic tumor invasion into the right fimbriae of the fallopian tube was found. A precise and detailed pathological and immunohistochemical examinations of the resected metastatic diaphragm tumor helped us obtain a proper diagnosis of the primary lesion and treat the patient appropriately. Since it is difficult to diagnose diaphragm tumors before surgery based on the anatomy, surgical options have played an important role in their treatment and diagnosis clinically. PMID- 29327266 TI - Social targets improve body-based and environment-based strategies during spatial navigation. AB - Encoding the position of another person in space is vital for everyday life. Nevertheless, little is known about the specific navigational strategies associated with encoding the position of another person in the wider spatial environment. We asked two groups of participants to learn the location of a target (person or object) during active navigation, while optic flow information, a landmark, or both optic flow information and a landmark were available in a virtual environment. Whereas optic flow information is used for body-based encoding, such as the simulation of motor movements, landmarks are used to form an abstract, disembodied representation of the environment. During testing, we passively moved participants through virtual space, and compared their abilities to correctly decide whether the non-visible target was before or behind them. Using psychometric functions and the Bayes Theorem, we show that both groups assigned similar weights to body-based and environment-based cues in the condition, where both cue types were available. However, the group who was provided with a person as target showed generally reduced position errors compared to the group who was provided with an object as target. We replicated this effect in a second study with novel participants. This indicates a social advantage in spatial encoding, with facilitated processing of both body-based and environment-based cues during spatial navigation when the position of a person is encoded. This may underlie our critical ability to make accurate distance judgments during social interactions, for example, during fight or flight responses. PMID- 29327267 TI - Antimicrobial peptide gene BdPho responds to peptidoglycan infection and mating stimulation in oriental fruit fly, Bactrocera dorsalis (Hendel). AB - Phormicins belong to defensin family, which are important antimicrobial peptides (AMPs) in insects. These AMPs are inducible upon challenging by immune triggers. In the present study, we identified the cDNA of a phormicin gene (BdPho) in the oriental fruit fly, Bactrocera dorsalis (Hendel), a ruinous agricultural pest causing great economic losses to fruits and vegetables. The cDNA of BdPho contains a 282 bp open reading frame encoding 93 amino acid residues, and the predicted molecular weight and isoelectric point of BdPho peptide were 9.83 kDa and 7.54, respectively. Quantitative real-time PCR analyses showed that the transcription level of BdPho was the highest in adult during different developmental stages and was the highest in abdomen among adult tagmata. Moreover, BdPho was highly expressed in fat body among different tissues, both in female and male adult. The mRNA level of BdPho was significantly up-regulated to 7.46- and 14.53-fold at 3 and 6 h after the insects were challenged with peptidoglycans from Escherichia coli (PGN-EB), respectively, suggesting its antimicrobial activity against Gram-negative microorganisms. Furthermore, the expression level of BdPho was significantly up-regulated to 3.83-fold after mating, suggesting that female adults might enhance their immunity by up regulating the expression level of BdPho during mating. These results firstly describe the basic properties of the phormicin gene from B. dorsalis, and lay the foundation for investigating functional properties of AMPs and exploring the molecular mechanisms in the immune system. PMID- 29327268 TI - Serum thiol levels and thiol/disulphide homeostasis in gunshot injuries. AB - BACKGROUND: Gunshot injuries result in serious traumatic tissue damage due to high velocity of the bullet, deep penetration, and ballistic effect. Trauma is known to be related with oxidative stress. Serum thiol levels and disulphide/thiol homeostasis are novel oxidative stress biomarkers. In this study, we aimed to investigate serum thiol levels and disulphide/thiol homeostasis in injury patterns of patients admitted to the emergency department with a gunshot injury. METHOD: A total of 128 participants were included in the study. The participants were divided into two groups: the patient group (Group 1; n = 73) and healthy controls (Group 2; n = 55). Native thiol, total thiol, disulphide levels, disulphide/native thiol, disulphide/total thiol, and neutrophil-to-lymphocyte ratio (NLR) were measured. The Revised Trauma Scale (RTS) and Glasgow Coma Scale (GCS) scores were calculated. RESULTS: Native thiol, total thiol, and disulphide levels were significantly lower in Group 1 (p < 0.001). Disulphide/native thiol ratio, disulphide/total thiol ratio, and NLR were significantly higher in Group 1, compared to Group 2 (p < 0.05). There was a positive correlation between thiol levels and RTS and GCS scores and NLR. Stepwise linear regression analysis showed that native thiol was an independent indicator of RTS and GCS scores. The receiver operating characteristic curve (ROC) analysis revealed that serum native thiol levels of <= 342.9 could predict gunshot injury with a sensitivity of 82% and a specificity of 77% (area under the curve = 0.853; 95% confidence interval 0.783-0.924). CONCLUSION: Our study results suggest that thiol-disulphide homeostasis is disrupted in patients sustaining gunshot injuries, and thiol levels decrease in correlation with the severity of trauma with a high sensitivity and specificity. As the level of native thiol is an independent predictor of the severity of trauma, reduced thiol levels may be of prognostic value in the early assessment of patients in the emergency room. PMID- 29327270 TI - [Paraneoplastic syndromes]. PMID- 29327269 TI - Unfair Treatment and Periodontitis Among Adults in the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). AB - This study investigates how perceived unfair treatment, towards self and observed towards others due to ethnicity, is associated with periodontitis among diverse Hispanic/Latino adults, accounting for sociodemographic, health behavior, and acculturation factors. Baseline (2008-2011) dental and survey data from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL), a multicenter epidemiologic study, were analyzed (N = 12,750). Crude and adjusted prevalence ratios and confidence limits were estimated. Half (49%) reported never being treated unfairly, while 41% reported they were sometimes, and 10% reported it often/always. One third (32%) never saw others treated unfairly, while 42% reported it sometimes, and 26% reported it often/always. In the final fully adjusted model, the prevalence of periodontitis was higher among adults who were as follows: non-Dominican, older, male, had a past year dental visit, current and former smokers, and among those who observed unfair treatment towards others. Lower prevalence was associated with higher income, higher educational attainment, less than full-time employment, reporting experiencing unfair treatment, higher acculturation scores, and having health insurance. Perceived unfair treatment towards self was negatively associated with periodontitis prevalence, while observed unfair treatment towards others was positively associated with the outcome among diverse Hispanics/Latinos. The associations between unfair treatment and periodontitis warrant further exploration. PMID- 29327271 TI - [Paraneoplastic neurological syndromes : A current summary]. AB - BACKGROUND: Paraneoplastic neurological syndromes (PNNS) are remote effects of a tumor and mediated by an altered immune reaction. In the last ten years, the spectrum of PNNS has changed profoundly with the discovery of a new category of neurological diseases that are associated with antibodies against surface or synaptic antigens. In contrast to classical PNNS, patients with surface receptor autoimmunity are often highly responsive to immunotherapy. OBJECTIVES: This article provides an update on the most relevant PNNS, focusing on specific syndromes associated with antibodies against classical onconeuronal antigens as well as surface and synaptic proteins. RESULTS: Classical PNNS are associated with antibodies against intracellular antigens (onconeuronal antibodies). They usually precede the tumor diagnosis and lead to the detection of the neoplasm. Affected patients are often older and have an unfavorable prognosis. Patients with surface receptor autoimmunity can have a similar presentation as classical PNNS; however, the disease is not necessarily triggered by a tumor and patients usually show a good response to treatment. Some surface receptor antibodies might manifest in highly characteristic syndromes and the resulting disease is named after the antibody, such as in anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Other antibodies have considerable overlap in their clinical presentation and may be difficult to distinguish, such as in limbic encephalitis associated with GABA(B)R and alpha-amino-3-hydroxy-5-hydroxy-5-methyl-4 isoxazolpropionsaure receptor (AMPAR) antibodies. The diagnosis of the PNNS is important for an early recognition of a tumor and prompt initiation of treatment, which is associated with a better outcome of patients. PMID- 29327272 TI - Protein Losing Enteropathy in Hennekam Syndrome. PMID- 29327273 TI - Chronic Gastric Volvulus: Cause of Feed Intolerance. PMID- 29327274 TI - First-line therapy for advanced non-small cell lung cancer with activating EGFR mutation: is combined EGFR-TKIs and chemotherapy a better choice? AB - As the standard first-line treatment for advanced non-small cell lung cancer (NSCLC) with activating epidermal growth factor receptor (EGFR) mutation, EGFR tyrosine kinase inhibitors (EGFR-TKIs) have significantly improved the median progression-free survival (PFS) up to 18.9 months. However, almost all patients eventually develop acquired resistance to EGFR-TKIs, which limits the first-line PFS. To overcome the resistance and improve overall survival, researchers have tried to identify the resistance mechanisms and develop new treatment strategies, among which a combination of EGFR-TKIs and cytotoxic chemotherapy is one of the hotspots. The data from preclinical and clinical studies on combined EGFR-TKIs and chemotherapy have shown very interesting results. Here, we reviewed the available preclinical and clinical studies on first-line EGFR-TKIs-chemotherapy combination in patients with advanced NSCLC harboring activating EGFR mutation, aiming to provide evidences for more potential choices and shed light on clinical treatment. PMID- 29327275 TI - [Eyelid surgery : Principles of blepharoplasty, application of CO2 lasers, aftercare and scar revision]. PMID- 29327277 TI - Association between remifentanil and acute kidney injury. PMID- 29327276 TI - Portal congestion and intestinal edema in hospitalized patients with heart failure. AB - An interaction between the intestine and cardiovascular disease has been suggested. We thought to clarify the association between intestinal conditions and clinical outcomes in patients with heart failure (HF). Hemodynamic parameters in intestinal vessels [superior mesenteric artery (SMA), inferior mesenteric artery (IMA), and portal vein (PV)] and average colon wall thickness (aCWT) from the ascending colon to sigmoid colon were evaluated in 224 hospitalized HF patients. Echocardiographic parameters and composite event rates (all-cause mortality, readmission for HF deterioration, major ventricular arrhythmias) were also examined. Higher PV congestion index (CI) and aCWT were observed in patients with New York Heart Association (NYHA) class III/IV. Higher PVCI [hazard ratio (HR) per + 1 standard deviation (SD) 1.50, p < 0.01] and aCWT (HR per + 1 SD 1.45, p < 0.01) were independently associated with higher composite event rates during the follow-up of 122 +/- 68 days. None of SMA/IMA hemodynamic parameters were associated with NYHA class or composite event rates. Higher right ventricular end-diastolic dimension (38 +/- 7 vs 34 +/- 9 mm, p < 0.01) and lower tricuspid annual plane systolic excursion (15 +/- 5 vs 19 +/- 5 mm, p < 0.001) were observed in patients with higher PVCI (> 0.031 cm s) and aCWT (> 2.8 mm) relative to those in others. In conclusion, increased portal congestion and intestinal edema were associated with severe HF symptoms and poor outcomes in hospitalized HF patients, in addition to being associated with impaired right sided cardiac function. PMID- 29327278 TI - Nicotinamide Inhibits Ethanol-Induced Caspase-3 and PARP-1 Over-activation and Subsequent Neurodegeneration in the Developing Mouse Cerebellum. AB - Fetal alcohol spectrum disorder (FASD) is the principal preventable cause of mental retardation in the western countries resulting from alcohol exposure during pregnancy. Ethanol-induced massive neuronal cell death occurs mainly in immature neurons during the brain growth spurt period. The cerebellum is one of the brain areas that are most sensitive to ethanol neurotoxicity. Currently, there is no effective treatment that targets the causes of these disorders and efficient treatments to counteract or reverse FASD are desirable. In this study, we investigated the effects of nicotinamide on ethanol-induced neuronal cell death in the developing cerebellum. Subcutaneous administration of ethanol in postnatal 4-day-old mice induced an over-activation of caspase-3 and PARP-1 followed by a massive neurodegeneration in the developing cerebellum. Interestingly, treatment with nicotinamide, immediately or 2 h after ethanol exposure, diminished caspase-3 and PARP-1 over-activation and reduced ethanol induced neurodegeneration. Conversely, treatment with 3-aminobenzadine, a specific PARP-1 inhibitor, was able to completely block PARP-1 activation, but not caspase-3 activation or ethanol-induced neurodegeneration in the developing cerebellum. Our results showed that nicotinamide reduces ethanol-induced neuronal cell death and inhibits both caspase-3 and PARP-1 alcohol-induced activation in the developing cerebellum, suggesting that nicotinamide might be a promising and safe neuroprotective agent for treating FASD and other neurodegenerative disorders in the developing brain that shares similar cell death pathways. PMID- 29327279 TI - Emotion Recognition and Psychological Comorbidity in Friedreich's Ataxia. AB - Friedreich's ataxia (FRDA) is an autosomal recessive disease presenting with ataxia, corticospinal signs, peripheral neuropathy, and cardiac abnormalities. Little effort has been made to understand the psychological and emotional burden of the disease. The aim of our study was to measure patients' ability to recognize emotions using visual and non-verbal auditory hints, and to correlate this ability with psychological, neuropsychological, and neurological variables. We included 20 patients with FRDA, and 20 age, sex, and education matched healthy controls (HC). We measured emotion recognition using the Geneva Emotion Recognition Test (GERT). Neuropsychological status was assessed measuring memory, executive functions, and prosopagnosia. Psychological tests were Patient Health Questionnaire-9 (PHQ-9), State Trait Anxiety Inventory-state/-trait (STAI-S/-T), and Structured Clinical Interview for DSM Disorders II. FRDA patients scored worse at the global assessment and showed impaired immediate visuospatial memory and executive functions. Patients presented lower STAI-S scores, and similar scores at the STAI-T, and PHQ-9 as compared to HC. Three patients were identified with personality disorders. Emotion recognition was impaired in FRDA with 29% reduction at the total GERT score (95% CI - 44.8%, - 12.6%; p < 0.001; Cohen's d = 1.2). Variables associated with poor GERT scores were the 10/36 spatial recall test, the Ray Auditory Verbal Learning Test, the Montreal Cognitive Assessment, and the STAI-T (R2 = 0.906; p < 0.001). FRDA patients have impaired emotion recognition that may be secondary to neuropsychological impairment. Depression and anxiety were not higher in FRDA as compared to HC and should not be considered as part of the disease. PMID- 29327280 TI - Comparison of the DING protein from the archaeon Sulfolobus solfataricus with human phosphate-binding protein and Pseudomonas fluorescence DING counterparts. AB - DING proteins represent a new group of 40 kDa-related members, ubiquitous in living organisms. The family also include the DING protein from Sulfolobus solfataricus, functionally related to poly(ADP-ribose) polymerases. Here, the archaeal protein has been compared with the human Phosphate-Binding Protein and the Pseudomonas fluorescence DING enzyme, by enzyme assays and immune cross reactivity. Surprisingly, as the Sulfolobus enzyme, the Human and Pseudomonas proteins display poly(ADP-ribose) polymerase activity, whereas a phosphatase activity was only present in Sulfolobus and human protein, despite the conserved phosphate-binding site residues in Pseudomonas DING. All proteins were positive to anti-DING antibodies and gave a comparable pattern of anti-poly(ADP-ribose) polymerase immunoreactivity with two bands, at around 40 kDa and roughly at the double of this molecular mass. The latter signal was present in all Sulfolobus enzyme preparations and proved not due to either a contaminant or a precursor protein, but likely being a dimeric form of the 40 kDa polypeptide. The common immunological and partly enzymatic behavior linking human, Pseudomonas and Sulfolobus DING proteins, makes the archaeal protein an important model system to investigate DING protein function and evolution within the cell. PMID- 29327281 TI - Effect of early natal supplementation of paracetamol on attenuation of exotoxin/endotoxin induced pyrexia and precipitation of autistic like features in albino rats. AB - The present study was aimed to test the hypothesis that paracetamol (PCM) can precipitate autistic like features when used to counteract vaccine-induced fever using experimental rat pups. The pups were treated with measles mumps rubella (MMR) vaccine, diphtheria tetanus and pertussis (DPT) vaccines and lipopolysaccharide (LPS) with subsequent PCM treatment. The pups were evaluated for postnatal growth (weight gain, eye opening) and behavior alterations (swimming performance, olfactory discrimination, negative geotaxis, nociception, and locomotor activity) by performing battery of neurobehavioral test. Significant correlation was observed between social behavioral domains (nociception, anxiety and motor coordination) and pro-inflammatory load in the pups when treated with MMR/LPS along with PCM. A significant change in pro and anti-inflammatory (IL-4, IL-6, IL-10) markers were observed in rats treated with PCM, MMR, LPS, DPS alone or in combination with MMR, LPS and DPT (5128.6 +/- 0.000, 15,488 +/- 0.000***, 9661.1 +/- 157.29***a, 15,312 +/- 249.29***, 10,471 +/- 0.00***a, 16,789 +/- 273.34*** and 12,882 +/- 0.00***a). Pups were also scrutinized for the markers of oxidative stress, inflammation and histopathologically. All the treatment groups showed significant alteration in the behavioral changes, oxidative markers (TBARS-in control-4.33 +/- 0.02, PCM 9.42 +/- 0.18***, MMR-5.27 +/- 0.15***, MMR + PCM-8.57 +/- 0.18*** a, LPS-6.84 +/ 0.10***, LPS + PCM-4.51 +/- 0.30***a, DPT-5.68 +/- 0.12***, DPT + PCM-7.26 +/- 0.18***a) and inflammatory markers without following any specific treatment. These observation could be accorded to variable phenotypes of autistic spectrum disorders (ASDs). PMID- 29327283 TI - Persea americana Mill. crude extract exhibits antinociceptive effect on UVB radiation-induced skin injury in mice. AB - Persea americana, popularly known as avocado, has been empirically used as analgesic and anti-inflammatory including in the skin disorder treatment. Species of the genus Persea also show a photoprotective effect against UVB radiation. We investigated the antinociceptive and anti-inflammatory effects from a topical formulation containing the P. americana leaf extract in a UVB irradiation-induced burn model in mice and performed a gel-formulation stability study. The antinociceptive and anti-inflammatory effect was evaluated through mechanical allodynia, paw oedema, and inflammatory cell infiltration. Phenolic compounds were quantified by UHPLC-MS/MS. The gel-formulation stability study was performed analyzing organoleptic characteristics, pH, and viscosity. P. americana (3%) gel was able to prevent the UVB irradiation-induced mechanical allodynia on the 2nd and 3rd day after irradiation with maximum inhibition of 60 +/- 12% at 2nd day. Such effect may be attributed, at least in part, due the presence of (+)-catechin (302.2 +/- 4.9 MUg/g) followed by chlorogenic acid (130 +/- 5.1 MUg/g) and rutin (102.4 +/- 0.9 MUg/g) found in the extract. The gel was not able to prevent the inflammatory parameters such as edema and leukocyte infiltration induced by UVB irradiation. No changes important were detected in the stability study, mainly in low temperature. Our results suggest that P. americana gel-formulation, which presented stability, ensuring its quality and the therapeutic effect, could be an interesting strategy for the treatment of the pain associated with sunburn; this effect could be attributed to its biological constituents, especially catechin, chlorogenic acid, and rutin. PMID- 29327282 TI - Ziziphus spina-christi leaf extract pretreatment inhibits liver and spleen injury in a mouse model of sepsis via anti-oxidant and anti-inflammatory effects. AB - Sepsis is a systemic response to infection that can result in acute hepatic and splenic damage. Ziziphus spina-christi (L.) is a wild tree used as a medicinal plant by ancient Egyptians. However, little is known about the mechanism underlying its effects on sepsis. The current study investigated the protective effects of a Z. spina-christi leaf extract (ZSCLE) on liver and spleen damage in a male C57BL/6 mouse model of sepsis, induced by cecal ligation and puncture (CLP). Prior to CLP, ZSCLE was administered daily for five consecutive days via oral gavage at doses of 100, 200, or 300 mg/kg. The mice were euthanized 9 h after CLP, and oxidative stress markers were measured (myeloperoxidase, lipid peroxidation, nitric oxide, and reduced glutathione). In addition, we investigated histological changes, anti-oxidant enzyme activities (superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase), cytokine levels, protein expression of nuclear factor-kappaB and inducible nitric oxide synthase (iNOS), and mRNA levels of mitogen-activated protein kinase (8, 9, and 14), iNOS, tumor necrosis factor-alpha, and interleukin-1beta. Our results indicated that ZSCLE significantly and dose-dependently inhibited sepsis-induced liver and spleen injury. These results suggest that ZSCLE could provide a therapeutic agent for sepsis by inducing anti-inflammatory and anti-oxidant effects. PMID- 29327285 TI - Bernardino Ramazzini (1633-1714). PMID- 29327284 TI - Treatment of multiple sclerosis relapses with high-dose methylprednisolone reduces the evolution of contrast-enhancing lesions into persistent black holes. AB - INTRODUCTION: The MRI evidence of persistent black holes (pBHs) on T1-weighted images reflects brain tissue loss in multiple sclerosis (MS). The evolution of contrast-enhancing lesions (CELs) into pBHs probably depends on the degree and persistence of focal brain inflammation. The aim of our retrospective study was to evaluate the effect of a single cycle of intravenous methylprednisolone (IVMP), as for MS relapse treatment, on the risk of CELs' evolution into pBHs. PATIENTS AND METHODS: We selected 57 patients with CELs on the baseline MRI scan. We evaluated the evolution of CELs into pBHs on a follow-up MRI scan performed after >= 6 months in patients exposed and not exposed to IVMP for the treatment of relapse after the baseline MRI. RESULTS: In our cohort, 182 CELs were identified in the baseline MRI and 57 of them (31.3%) evolved into pBHs. In the multivariate analysis, the exposure of CELs to IVMP resulted to be a significant independent protective factor against pBHs' formation (OR 0.28, 95% CI 0.11 0.766, p = 0.005), while ring enhancement pattern and the fact of being symptomatic were significant risk factors for CELs' conversion into pBHs (OR 6.42, 95% CI 2.55-17.27, p < 0.001 and OR 13.19, 95% CI 1.56-288.87, p = 0.037). CONCLUSIONS: The exposure of CELs to a cycle of IVMP as for relapse treatment is associated with a lower risk of CELs' evolution into pBHs. Future studies are required to confirm the potential independent protective effect of IVMP on CELs' evolution into pBHs. PMID- 29327287 TI - Study of Effect of Impacting Direction on Abrasive Nanometric Cutting Process with Molecular Dynamics. AB - Abrasive flow polishing plays an important part in modern ultra-precision machining. Ultrafine particles suspended in the medium of abrasive flow removes the material in nanoscale. In this paper, three-dimensional molecular dynamics (MD) simulations are performed to investigate the effect of impacting direction on abrasive cutting process during abrasive flow polishing. The molecular dynamics simulation software Lammps was used to simulate the cutting of single crystal copper with SiC abrasive grains at different cutting angles (0o-45o). At a constant friction coefficient, we found a direct relation between cutting angle and cutting force, which ultimately increases the number of dislocation during abrasive flow machining. Our theoretical study reveal that a small cutting angle is beneficial for improving surface quality and reducing internal defects in the workpiece. However, there is no obvious relationship between cutting angle and friction coefficient. PMID- 29327286 TI - ABCD3-I score and the risk of early or 3-month stroke recurrence in tissue- and time-based definitions of TIA and minor stroke. AB - Changing definition of TIA from time to a tissue basis questions the validity of the well-established ABCD3-I risk score for recurrent ischemic cerebrovascular events. We analyzed patients with ischemic stroke with mild neurological symptoms arriving < 24 h after symptom onset in a phase where it is unclear, if the event turns out to be a TIA or minor stroke, in the prospective multi-center Austrian Stroke Unit Registry. Patients were retrospectively categorized according to a time-based (symptom duration below/above 24 h) and tissue-based (without/with corresponding brain lesion on CT or MRI) definition of TIA or minor stroke. Outcome parameters were early stroke during stroke unit stay and 3-month ischemic stroke. Of the 5237 TIA and minor stroke patients with prospectively documented ABCD3-I score, 2755 (52.6%) had a TIA by the time-based and 2183 (41.7%) by the tissue-based definition. Of the 2457 (46.9%) patients with complete 3-month followup, corresponding numbers were 1195 (48.3%) for the time- and 971 (39.5%) for the tissue-based definition of TIA. Early and 3-month ischemic stroke occurred in 1.1 and 2.5% of time-based TIA, 3.8 and 5.9% of time-based minor stroke, 1.2 and 2.3% of tissue-based TIA as well as in 3.1 and 5.5% of tissue based minor stroke patients. Irrespective of the definition of TIA and minor stroke, the risk of early and 3-month ischemic stroke steadily increased with increasing ABCD3-I score points. The ABCD3-I score performs equally in TIA patients in tissue- as well as time-based definition and the same is true for minor stroke patients. PMID- 29327288 TI - Expression of PFKFB3 and Ki67 in lung adenocarcinomas and targeting PFKFB3 as a therapeutic strategy. AB - Phosphofructokinase-2/fructose-2, 6-bisphosphatase 3 (PFKFB3) catalyzes the synthesis of F2,6BP, which is an allosteric activator of 6-phosphofructo-1-kinase (PFK-1): the rate-limiting enzyme of glycolysis. During tumorigenesis, PFKFB3 increases glycolysis, angiogenesis, and tumor progression. In this study, our aim was to investigate the significance of PFKFB3 and Ki67 in human lung adenocarcinomas and to target PFKFB3 as a therapeutic strategy. In this study, we determined the expression levels of PFKFB3 mRNA and proteins in cancerous and normal lung adenocarcinomas by quantitative reverse transcription PCR (qRT-PCR), Western blot analysis, and tissue microarray immunohistochemistry analysis, respectively. In human adenocarcinoma tissues, PFKFB3 and Ki67 protein levels were related to the clinical characteristics and overall survival. Both PFKFB3 mRNA and protein were significantly higher in lung adenocarcinoma cells (all P < 0.05). A high expression of PFKFB3 and Ki67 were associated with the degree of differentiation, TNM staging, lymph node metastasis, and survival. A high expression of PFKFB3 protein was an independent prognostic marker in lung adenocarcinoma. Subsequently, 1-(4-pyridinyl)-3-(2-quinolinyl)-2-propen-1-one (PFK15) was used as a selective antagonist of PFKFB3. Glycolytic flux was determined by measuring glucose uptake, F2,6BP, and lactate production. Cell viability, cell cycle, cell apoptosis, cell migration, and invasion were analyzed by MTT, flow cytometry, Western blot analysis, wound healing assay, and transwell chamber assay. By targeting PFKFB3, it inhibited cell viability and glycolytic activity. It also caused apoptosis and induced cell cycle arrest. Furthermore, the migration and invasion of A549 cells was inhibited. We conclude that PFKFB3 bears an oncogene-like regulatory element in lung adenocarcinoma progression. In the treatment of lung adenocarcinoma, targeting PFKFB3 would be a promising therapeutic strategy. PMID- 29327289 TI - Study of adenylyl cyclase-GalphaS interactions and identification of novel AC ligands. AB - Adenylyl cyclases (ACs) are membrane bound enzymes that catalyze the production of cAMP from ATP in response to the activation by G-protein Galphas. Different isoforms of ACs are ubiquitously expressed in different tissues involved in regulatory mechanisms in response to specific stimulants. There are 9 AC isoforms present in humans, with AC5 and AC6 proposed to play a vital role in cardiac functions. The activity of AC6 is sensitive to nitric oxide, such that nitrosylation of the protein might regulate its function. However, the information on structural determinants of nitrosylation in ACs and how they interact with Galphas is limited. Here we used homology modeling to build a molecular model of human AC6 bound to Galphas. Based on this 3D model, we predict the nitrosylation amenable cysteines, and identify potential novel ligands of AC6 using virtual ligand screening. Our model suggests Cys1004 in AC6 (subunit C2) and Cys174 in Galphas present at the AC-Galphas interface as the possible residues that might undergo reversible nitrosylation. Docking analysis predicted novel ligands of AC6 that include forskolin-based compounds and its derivatives. Further work involving site-directed mutagenesis of the predicted residues will allow manipulation of AC activity using novel ligands, and crucial insights on the role of nitrosylation of these proteins in pathophysiological conditions. PMID- 29327291 TI - Pars plana vitrectomy with transscleral fixation of posterior chamber lens in the treatment of post-traumatic lens dislocation. AB - PURPOSE: To present our experience with post-traumatic lens dislocation management by vitrectomy followed with sutureless artificial lens fixation. METHODS: The retrospective study involved 15 patients (12 men and 3 women) aged from 36 to 78 (on average, 63 years old), from the Vitreoretinal Surgery Teaching Hospital, operated in the years 2013-2015. All cases concerned ocular traumas with dislocation of the natural or artificial lens to the anterior chamber, vitreous body chamber, or post-traumatic aphakia. After vitrectomy, patients had the implant fixated with a technique devised by Scharioth-sutureless fixation of posterior chamber implants in the groove area, with haptics placed in scleral tunnels parallel to the corneal limbus. Preoperative and postoperative condition of the eye was assessed. RESULTS: The average period of observation was 29 weeks. Average pre-surgery refraction was + 10.75, while post-surgery + 1.25. Average best-corrected visual acuity in Snellen charts before surgery was 0.3 and at the end of the observation period 0.5. The improvement in visual acuity after surgery in relation to visual acuity before surgery was statistically significant (P = 0.005). In the first 2 weeks after surgery, minor hypotonia was observed in three of the patients, while in two-moderate bleeding to the vitreous body and the anterior chamber, which subsided without surgical intervention. A slight decentration of the implant observed in two cases did not affect later refraction or BCVA. CONCLUSION: Basing on the abovementioned facts, we believe that this surgical approach facilitates the fixation of the dislocated lens and allows a successful treatment of secondary implantation or repositioning of a dislocated intraocular lens. PMID- 29327290 TI - The diagnostic performance of reduced-dose CT for suspected appendicitis in paediatric and adult patients: A systematic review and diagnostic meta-analysis. AB - OBJECTIVE: To evaluate the diagnostic performance of reduced-dose CT for suspected appendicitis. METHODS: A systematic search of the MEDLINE and EMBASE databases was carried out through to 10 January 2017. Studies evaluating the diagnostic performance of reduced-dose CT for suspected appendicitis in paediatric and adult patients were selected. Pooled summary estimates of sensitivity and specificity were calculated using hierarchical logistic regression modelling. Meta-regression was performed. RESULTS: Fourteen original articles with a total of 3,262 patients were included. For all studies using reduced-dose CT, the summary sensitivity was 96 % (95 % CI 93-98) with a summary specificity of 94 % (95 % CI 92-95). For the 11 studies providing a head-to-head comparison between reduced-dose CT and standard-dose CT, reduced-dose CT demonstrated a comparable summary sensitivity of 96 % (95 % CI 91-98) and specificity of 94 % (95 % CI 93-96) without any significant differences (p=.41). In meta-regression, there were no significant factors affecting the heterogeneity. The median effective radiation dose of the reduced-dose CT was 1.8 mSv (1.46-4.16 mSv), which was a 78 % reduction in effective radiation dose compared to the standard-dose CT. CONCLUSION: Reduced-dose CT shows excellent diagnostic performance for suspected appendicitis. KEY POINTS: * Reduced-dose CT shows excellent diagnostic performance for evaluating suspected appendicitis. * Reduced-dose CT has a comparable diagnostic performance to standard-dose CT. * Median effective radiation dose of reduced-dose CT was 1.8 mSv (1.46-4.16). * Reduced-dose CT achieved a 78 % dose reduction compared to standard-dose CT. PMID- 29327293 TI - Overexpression of spoT gene in coccoid forms of clinical Helicobacter pylori isolates. AB - Helicobacter pylori (H. pylori) can convert to coccoid form in unfavorable conditions or as a result of antibiotic treatment. In order to adapt to harsh environments, H. pylori requires a stringent response which, encoded by the spoT gene, has a bifunctional enzyme possessing both (p)ppGpp synthetic and degrading activity. Our goal in this study was to compare spoT gene expression in spiral and induced coccoid forms of H. pylori with use of amoxicillin. First, clinical isolate coccoid forms were induced with amoxicillin; then, the viability test was analyzed by flow cytometer. After RNA extraction, cDNA synthesis and designing a specific primer for spoT gene, evaluation of the desired gene expression in both forms were studied. Bacterial isolates exposed to amoxicillin at MIC and 1/2 MIC induced morphological conversion better and faster than other MIC concentration. The expression of spoT gene was significantly downregulated in spiral forms of H. pylori, while the gene expression was upregulated and + 30.3-fold changes was seen in coccoid forms of bacterium. To summarize, spoT gene is one of the key factors for antibiotic resistance and its enhanced expression in coccoid form can be a valuable diagnostic marker for recognition of H. pylori during morphological conversion. PMID- 29327292 TI - Alterations of growth rate and gene expression levels of UPEC by antibiotics at sub-MIC. AB - The host is the main environment for bacteria, and they also expose to many antibiotics during the treatment of infectious diseases in host body. In this study, it was aimed to investigate possible changes in growth rate and expression levels of three virulence genes (foc/foc, cnf1, and usp) in a uropathogenic E. coli standard strain within the presence of ciprofloxacin, nitrofurantoin, and trimethoprim-sulfamethoxazole. The UPEC C7 strain was grown on tryptic soy broth TSB (control), TSB + ciprofloxacin, TSB + nitrofurantoin, and TSB + trimethoprim sulfamethoxazole for determination of both growth rate and gene expression level. Antibiotics were added according to their sub-minimal inhibition concentrations. E-test was used to determine MIC values of antibiotics. Growth changes were measured in absorbance 600 nm during 24-h period. Total RNA isolations were performed after incubation for 24 h at 37 degrees C. Gene expression levels were determined by quantitative PCR. Tukey's post hoc test was used for statistical analysis. According to absorbance values, it has been shown that only ciprofloxacin and trimethoprim-sulfamethoxazole have lead significant decrease on growth rate. We also detected statistically significant differences in each gene expression levels for all antibiotics via relative quantification analysis. Fold changes in gene expression was found 0.65, 1.42, 0.23 for foc/foc gene; 0.01, 0.01, 2.84 for cnf1 gene; and 0.1, 0.01, 0.01 for usp gene in the presence of ciprofloxacin, nitrofurantoin, and trimethoprim/sulfamethoxazole, respectively. This investigation has shown that antibiotics can play a role as an environmental factor which may determine the pathogenicity of bacteria in vivo. PMID- 29327295 TI - Common Deficiencies of in vitro Binding Bioequivalence (BE) Studies Submitted in Abbreviated New Drug Applications (ANDAs). AB - There are several drug products that bind phosphate or bile acid in the gastrointestinal (GI) tract to exert their therapeutic efficacy. In vitro binding studies are used to assess bioequivalence (BE) of these products. The objective of this study is to identify the common deficiencies in Abbreviated New Drug Applications (ANDAs) for these products. Deficiencies were compiled from ANDAs containing in vitro binding BE studies. The deficiencies were classified into eight categories: Pre-Study Method Validation, During-Study Sample Analysis, Study Design, Study Procedure, Dissolution/Disintegration, Analytical Site Inspection, Data Submission, and Formulations. Within each category, additional subcategories were defined to characterize the deficiencies. A total of 712 deficiencies from 95 ANDAs for 11 drug products were identified and included in the analysis. The four categories with the most deficiencies were During-Study Sample Analysis (27.8%), Pre-Study Method Validation (17.3%), Data Submission (16.7%), and Study Design (15.7%). For the During-Study Sample Analysis category, failure to submit complete raw data or analytical runs ranked as the top deficiency (32.8%). For the Study Design category, using an unacceptable alternate study design (26.8%) was the most common deficiency. Within this category, other commonly occurring deficiencies included incorrect/insufficient number of absorbent concentrations, failure to pre-treat drug product with acid, insufficient number of replicates in study, incorrect calculation of k1 and k2 values, incorrect dosage form or pooled samples used in the study, and incorrect pH of study medium. The review and approval of these products may be accelerated if these common deficiencies are addressed in the original ANDA submissions. PMID- 29327294 TI - Low risk for hip fracture and high risk for hip arthroplasty due to osteoarthritis among Swedish farmers. AB - : We aimed to study the risk of hip fracture and risk of hip arthroplasty among farmers in Sweden. Our results indicate that farming, representing an occupation with high physical activity, in men is associated with a lower risk of hip fracture but an increased risk of hip arthroplasty. INTRODUCTION: The risks of hip fracture and hip arthroplasty are influenced by factors including socioeconomic status, education, urbanization, latitude of residence, and physical activity. Farming is an occupation encompassing rural living and high level of physical activity. Therefore, we aimed to study the risk of hip fracture and risk of hip arthroplasty among farmers in Sweden. METHODS: We studied the risk of hip fracture, and hip arthroplasty due to primary osteoarthritis, in all men and women aged 35 years or more in Sweden between 1987 and 2002. Documented occupations were available in 3.5 million individuals, of whom 97,136 were farmers. The effects of age, sex, income, education, location of residence, and occupation on risk of hip fracture or hip arthroplasty were examined using a modification of Poisson regression. RESULTS: A total of 4027 farmers and 93,109 individuals with other occupations sustained a hip fracture, while 5349 farmers and 63,473 others underwent a hip arthroplasty. Risk of hip fracture was higher with greater age, lower income, lower education, higher latitude, and urban area for all men and women. Compared to all other occupations, male farmers had a 20% lower age-adjusted risk of hip fracture (hazard ratio (HR) 0.80, 95%CI 0.77 0.84), an effect that was not seen in female farmers (HR 0.96, 95% CI 0.91-1.01). Both male and female farmers had a higher age-adjusted risk for hip arthroplasty. CONCLUSIONS: Our results indicate that farming, representing an occupation with high physical activity, in men is associated with a lower risk of hip fracture but an increased risk of hip arthroplasty. PMID- 29327296 TI - Correction to: Dietary intake of soy and cruciferous vegetables and treatment related symptoms in Chinese-American and non-Hispanic White breast cancer survivors. AB - In the original publication, the values provided for the isoflavone and glucosinolate intake variables were incorrectly labeled in Table 1. The correct values of 6.3 mg/day for isoflavone intake, and 20.4 mg/day and 50.1 mg/day for glucosinolate intake are provided in this erratum. PMID- 29327297 TI - Correction to: Breast-conserving surgery following neoadjuvant therapy-a systematic review on surgical outcomes. AB - In the original publication of the article, Table 2 was published incorrectly. The corrected Table 2 is given in this erratum. The original article has been corrected. PMID- 29327298 TI - The impact of obesity on outcomes for patients undergoing mastectomy using the ACS-NSQIP data set. AB - PURPOSE: According to the World Health Organization (WHO), 34.7% of females in the United States are obese (BMI >= 30) in 2014, compared to 32.5% in 2010. The previous research has demonstrated high BMI as an independent risk factor for surgical complications after breast surgery. As more patients become obese, we sought to examine whether increasing obesity had an effect on outcomes of women who underwent a unilateral mastectomy without breast reconstruction. METHODS: The study reviewed the 2007-2012 ACS-NSQIP database and identified all patients who underwent a unilateral mastectomy without reconstruction. Patients were then categorized and compared according to the World Health Organization obesity classification. Data were analyzed for minor complications (e.g., UTI and SSI) and major complications (e.g., renal failure, sepsis, deep vein thrombosis, return to operating room [RTOR], and cardiac arrest). RESULTS: A total of 7207 women were identified. Median BMI was 27.3 kg/m2. From the cohort, 453 patients (6.29%) had a major complication and 173 patients (2.40%) had a minor complication. 53 (0.74%) had bleeding complications, 148 (2.05%) had a surgical site infection (SSI), 352 (4.88%) RTOR, and 7 (0.01%) died within 30 days. Major complications (p = 0.005) and minor complications (p < 0.001) significantly increased as BMI increased. SSI and RTOR had increasing trends, but were not statistically significant. CONCLUSIONS: This study characterizes the risk of complications in women undergoing unilateral mastectomies and shows that increasing obesity is associated with major and minor postoperative complications. Our finding highlights the need for personalized preoperative risk assessment and counseling of obese patients. PMID- 29327299 TI - Impact of subclinical hypothyroidism with TSH <=10 mIU/L on glomerular filtration rate in adult women without known kidney disease. PMID- 29327300 TI - Cantu syndrome with coexisting familial pituitary adenoma. AB - CONTEXT: Pseudoacromegaly describes conditions with an acromegaly related physical appearance without abnormalities in the growth hormone (GH) axis. Acromegaloid facies, together with hypertrichosis, are typical manifestations of Cantu syndrome. CASE DESCRIPTION: We present a three-generation family with 5 affected members, with marked acromegaloid facies and prominent hypertrichosis, due to a novel missense variant in the ABCC9 gene. The proband, a 2-year-old girl, was referred due to marked hypertrichosis, noticed soon after birth, associated with coarsening of her facial appearance. Her endocrine assessment, including of the GH axis, was normal. The proband's father, paternal aunt, and half-sibling were referred to the Endocrine department for exclusion of acromegaly. Although the GH axis was normal in all, two subjects had clinically non-functioning pituitary macroadenomas, a feature which has not previously been associated with Cantu syndrome. CONCLUSIONS: Activating mutations in the ABCC9 and, less commonly, KCNJ8 genes-representing the two subunits of the ATP sensitive potassium channel-have been linked with Cantu syndrome. Interestingly, minoxidil, a well-known ATP-sensitive potassium channel agonist, can cause a similar phenotype. There is no clear explanation why activating this channel would lead to acromegaloid features or hypertrichosis. This report raises awareness for this complex condition, especially for adult or pediatric endocrinologists who might see these patients referred for evaluation of acromegaloid features or hirsutism. The link between Cantu syndrome and pituitary adenomas is currently unclear. PMID- 29327302 TI - Diffuse idiopathic skeletal hyperostosis is associated with lumbar spinal stenosis requiring surgery. AB - Factors related to the onset and progression of lumbar spinal stenosis (LSS) have not yet been identified. Diffuse idiopathic skeletal hyperostosis (DISH) increases mechanical loading on the non-fused lumbar levels and may therefore lead to LSS. This cross-sectional study aimed to identify associations between LSS and DISH. This study included 2363 consecutive patients undergoing surgery for LSS and 787 general inhabitants without symptoms of LSS as participants of the population-based cohort study, Research on Osteoarthritis/Osteoporosis Against Disability. Standing whole-spine radiographs were used to diagnose DISH based on the criteria proposed by Resnick and Niwayama. The prevalence of DISH showed a significant step-wise increase among asymptomatic inhabitants without radiographic LSS, asymptomatic inhabitants with radiographic LSS, and patients with LSS requiring surgery (14.4, 21.1, and 31.7%, respectively; p < 0.001). The distribution of DISH was similar between the groups, but the lower thoracic and upper-middle lumbar spine regions were more frequently involved in patients with LSS requiring surgery. Multivariate analysis indicated that DISH was an independent associated factor for LSS requiring surgery (adjusted odds ratio 1.65; 95% confidence interval 1.32-2.07) after adjustment for age, sex, body mass index, and diabetes mellitus. Among patients with LSS requiring surgery, a higher occurrence of stenosis at the upper lumbar levels and multi-level stenosis were observed in patients with DISH requiring surgery than in patients without DISH. In conclusion, DISH is independently associated with LSS requiring surgery. The decrease in the lower mobile segments by DISH may increase the onset or severity of LSS. PMID- 29327303 TI - Differential osteopontin expression in human osteoblasts derived from iliac crest and alveolar bone and its role in early stages of angiogenesis. AB - In our previous study, we revealed significant differences of osteopontin (OPN) gene expression in primary human osteoblasts (HOBs) derived from iliac crest bone (iHOBs) and alveolar bone (aHOBs). The present study aims at assigning this discriminative expression to a possible biologic function. OPN is known to be involved in several pathologic and physiologic processes, among others angiogenesis. Therefore, we studied the reaction of human umbilical vein endothelial cells (HUVECs) to HOB-derived OPN regarding angiogenesis. To this end, human primary explant cultures of both bone entities from ten donors were established. Subsequent transcription analysis detected higher gene expression of OPN in iHOBs compared to aHOBs, thereby confirming the results of our previous study. This difference was particularly apparent when cultures were derived from female donors. Hence, OPN protein expression as well as the angiogenic potential of OPN was analyzed, originating from HOBs of one female donor. In accordance to the gene expression level, secreted OPN was more abundant in the supernatant of iHOBs than in aHOBs. Moreover, secreted OPN was found to stimulate migration of HUVECs, but not proliferation or tube formation. These results indicate an involvement in very early stages of angiogenesis and a functional distinction of OPN from HOBs derived from different bone entities. PMID- 29327304 TI - The Irrigation Effect: How River Regulation Can Promote Some Riparian Vegetation. AB - River regulation impacts riparian ecosystems by altering the hydrogeomorphic conditions that support streamside vegetation. Obligate riparian plants are often negatively impacted since they are ecological specialists with particular instream flow requirements. Conversely, facultative riparian plants are generalists and may be less vulnerable to river regulation, and could benefit from augmented flows that reduce drought stress during hot and dry periods. To consider this 'irrigation effect' we studied the facultative shrub, netleaf hackberry (Celtis reticulata), the predominant riparian plant along the Hells Canyon corridor of the Snake River, Idaho, USA, where dams produce hydropeaking, diurnal flow variation. Inventories of 235 cross-sectional transects revealed that hackberry was uncommon upstream from the reservoirs, sparse along the reservoir with seasonal draw-down and common along two reservoirs with stabilized water levels. Along the Snake River downstream, hackberry occurred in fairly continuous, dense bands along the high water line. In contrast, hackberry was sparsely scattered along the free-flowing Salmon River, where sandbar willow (Salix exigua), an obligate riparian shrub, was abundant. Below the confluence of the Snake and Salmon rivers, the abundance and distribution of hackberry were intermediate between the two upstream reaches. Thus, river regulation apparently benefited hackberry along the Snake River through Hells Canyon, probably due to diurnal pulsing that wets the riparian margin. We predict similar benefits for some other facultative riparian plants along other regulated rivers with hydropeaking during warm and dry intervals. To analyze the ecological impacts of hydropeaking we recommend assessing daily maxima, as well as daily mean river flows. PMID- 29327301 TI - LncRNA GAS8-AS1 inhibits cell proliferation through ATG5-mediated autophagy in papillary thyroid cancer. AB - PURPOSE: The long non-coding RNA GAS8 antisense RNA 1 (lncRNA GAS8-AS1) is a tumor suppressor in papillary thyroid cancer (PTC), but the mechanisms underlying how GAS8-AS1 regulates PTC biology remain unclear. Here, we evaluated the molecular function of GAS8-AS1 in regulating autophagy in PTC cell lines. METHODS: GAS8-AS1 was overexpressed and knocked down in PTC cell lines by transfecting with expression plasmids or short interfering RNAs (siRNAs). Cell proliferation was evaluated using the Cell Counting Kit-8 (CCK-8). qRT-PCR and western blot were used to determine changes in expression of autophagy-related genes. Autophagy was evaluated by immunofluorescence and transmission electron microscopy. RESULTS: Relative GAS8-AS1 expression was lower in the PTC cell lines, TPC1 and BCPAP, compared to a normal thyroid cell line. Overexpression of GAS8-AS1 inhibited proliferation, significantly increased the ratio of LC3-II/LC3 I, and reduced p62 expression, whereas GAS8-AS1 knockdown demonstrated opposite effects. In GAS8-AS1 overexpressing cell lines, LC3 immunofluorescence staining demonstrated increased punctate aggregates of LC3 staining, and transmission electron microscopy revealed increased numbers of autophagosomes. Autophagy related gene 5 (ATG5) was markedly upregulated by GAS8-AS1 overexpression and downregulated by GAS8-AS1 knockdown. Finally, silencing of ATG5 attenuated autophagy activation and rescued the inhibition of cell proliferation caused by GAS8-AS1. CONCLUSIONS: In PTC cell lines, GAS8-AS1 inhibited proliferation, activated autophagy, and increased ATG5 expression. Downregulation of ATG5 reversed GAS8-AS1-mediated activation of autophagy leading to cell death, revealing a novel mechanism of the GAS8-AS1-ATG5 axis in PTC cell lines. This provided a new experimental basis to explore the effects of lncRNA on autophagy in the treatment of thyroid cancer. PMID- 29327305 TI - Five-year postoperative outcomes of modified staged canal wall up tympanoplasty for primary acquired cholesteatoma. AB - OBJECTIVE: For successful canal wall up tympanoplasty (CWUT) for the treatment of cholesteatoma, the restoration of stable middle ear aeration is also important; however, little is known about the dynamics of such aeration or the optimal surgical procedure. In this study, alternative additional surgical procedure was selected based on the grade of middle ear aeration during the second-stage operation. SUBJECTS AND METHODS: Patients included in this study underwent staged CWUT surgeries with mastoid cortex plasty (MCP) for well-aerated ears (grade 3) and bony mastoid obliteration (BMO) for poorly aerated ears (grade 2-0). Of the 115 ears included in this study, 62 were followed for more than 5 years. Recurrence rates with deep retraction pocket formation were assessed using the Kaplan-Meier survival analysis. The aeration was graded as: 0, no aeration; 1, aeration of only the mesotympanum; 2, aeration of the entire tympanic cavity; and 3, aeration of both the tympanic and mastoid cavities. RESULTS: No recurrence was observed in ears associated with grade 3 aeration that underwent MCP or in ears with grade 2 aeration that underwent BMO during second-stage surgery. For grades 0 and 1 aeration ears, the recurrence rates were 8.1% after 5 years and 12.5% after 10 years (p < 0.05), and the aeration of recurrent ears deteriorated to grade 0. CONCLUSION: Aeration during second-stage surgery predicts the final outcome. PMID- 29327306 TI - Strengthening the case for gender-neutral and the nonavalent HPV vaccine. AB - PURPOSE: The purpose of this review is to highlight the benefits of gender neutral and the nonavalent human papillomavirus vaccination. Human papillomavirus infection is the most commonly sexually transmitted disease and is known to cause several types of cancers, including cervical, vulvar, vaginal, penile, oropharyngeal, anal, and rectal. 5% of cancers every year are attributable to human papillomavirus infection, with cervical cancer the most common and oropharyngeal cancer estimated to surpass the incidence of cervical cancer by 2020. METHODS: PubMed and MEDLINE were searched using the following search terms: [(human papillomavirus OR HPV) AND (vaccine OR vaccination)] AND [(gardasil OR gardasil9 OR cervarix OR quadrivalent OR nonavalent OR ninevalent) OR (gender neutral OR male)]. RESULTS: There are currently three different types of human papillomavirus vaccinations and range in cover from four to nine different strains known to cause human disease. Most countries currently only supply vaccination to females; however, recent data point towards both a personal benefit as well as a cost-effective population-based benefit with gender-neutral vaccination. Data from female vaccination only have shown the vaccine to be effective in preventing premalignant cervical lesions, and are believed to have the same effect for other human papillomavirus cancers. Male vaccination not only provides personal benefit but also has a "herd effect" for females by preventing the propagation of the virus. CONCLUSION: Gender-neutral vaccination provides significant cost-effective benefits for preventing human papillomavirus-related diseases, and this effect is further enhanced by the use of the nonavalent vaccine. PMID- 29327308 TI - Methionine in Proteins: It's Not Just for Protein Initiation Anymore. AB - Methionine in proteins is often thought to be a generic hydrophobic residue, functionally replaceable with another hydrophobic residue such as valine or leucine. This is not the case, and the reason is that methionine contains sulfur that confers special properties on methionine. The sulfur can be oxidized, converting methionine to methionine sulfoxide, and ubiquitous methionine sulfoxide reductases can reduce the sulfoxide back to methionine. This redox cycle enables methionine residues to provide a catalytically efficient antioxidant defense by reacting with oxidizing species. The cycle also constitutes a reversible post-translational covalent modification analogous to phosphorylation. As with phosphorylation, enzymatically-mediated oxidation and reduction of specific methionine residues functions as a regulatory process in the cell. Methionine residues also form bonds with aromatic residues that contribute significantly to protein stability. Given these important functions, alteration of the methionine-methionine sulfoxide balance in proteins has been correlated with disease processes, including cardiovascular and neurodegenerative diseases. Methionine isn't just for protein initiation. PMID- 29327307 TI - Nucleoside-Lipid-Based Nanocarriers for Sorafenib Delivery. AB - Although the application of sorafenib, a small inhibitor of tyrosine protein kinases, to cancer treatments remains a worldwide option in chemotherapy, novel strategies are needed to address the low water solubility (< 5 MUM), toxicity, and side effects issues of this drug. In this context, the use of nanocarriers is currently investigated in order to overcome these drawbacks. In this contribution, we report a new type of sorafenib-based nanoparticles stabilized by hybrid nucleoside-lipids. The solid lipid nanoparticles (SLNs) showed negative or positive zeta potential values depending on the nucleoside-lipid charge. Transmission electron microscopy of sorafenib-loaded SLNs revealed parallelepiped nanoparticles of about 200 nm. Biological studies achieved on four different cell lines, including liver and breast cancers, revealed enhanced anticancer activities of Sorafenib-based SLNs compared to the free drug. Importantly, contrast phase microscopy images recorded after incubation of cancer cells in the presence of SLNs at high concentration in sorafenib (> 80 MUM) revealed a total cancer cell death in all cases. These results highlight the potential of nucleoside-lipid-based SLNs as drug delivery systems. PMID- 29327309 TI - Ischemia-Reperfusion Injury of Sciatic Nerve in Rats: Protective Role of Combination of Vitamin C with E and Tissue Plasminogen Activator. AB - An ischemia/reperfusion injury of rat's sciatic nerve was experimentally developed. In this model, we measured the in vivo production of superoxide radical, as a marker of oxidative stress and the occludin expression as an indicator of blood-nerve barrier function and we examined potential protective innervations against these abnormalities. Right sciatic nerves of the animals underwent 3 h of ischemia followed by 7 days of reperfusion and were divided into three groups: ischemic, pretreated with vitamin C in conjunction with vitamin E and treated with tissue plasminogen activator. Compared to measurements from left sciatic nerves used as sham, the ischemic group showed significantly increased superoxide radical and reduced expression of occludin in western blot and immunohistochemistry. No such differences were detected between sham and nerves in the vitamin or tissue plasminogen activator groups. It is suggested that the experimental ischemia/reperfusion model was suitable for studying the relationship between oxidative state and blood-nerve barrier. The reversion of abnormalities by the applied neuroprotective agents might prove to be a clinically important finding in view of the implication of vascular supply derangement in various neuropathies in humans. PMID- 29327311 TI - Sequentially Vapor-Grown Hybrid Perovskite for Planar Heterojunction Solar Cells. AB - High-quality and reproducible perovskite layer fabrication routes are essential for the implementation of efficient planar solar cells. Here, we introduce a sequential vapor-processing route based on physical vacuum evaporation of a PbCl2 layer followed by chemical reaction with methyl-ammonium iodide vapor. The demonstrated vapor-grown perovskite layers show compact, pinhole-free, and uniform microstructure with the average grain size of ~ 320 nm. Planar heterojunction perovskite solar cells are fabricated using TiO2 and spiro-OMeTAD charge transporting layers in regular n-i-p form. The devices exhibit the best efficiency of 11.5% with small deviation indicating the high uniformity and reproducibility of the perovskite layers formed by this route. PMID- 29327310 TI - C-Reactive Protein on Postoperative Day 1 Is a Reliable Predictor of Pancreas Specific Complications After Pancreaticoduodenectomy. AB - BACKGROUND: Postoperative pancreatic fistula and pancreas-specific complications have a significant influence on patient management and outcomes after pancreatoduodenectomy. The aim of the study was to assess the value of serum C reactive protein on the postoperative day 1 as early predictor of pancreatic fistula and pancreas-specific complications. METHODS: Between 2013 and 2016, 110 patients underwent pancreaticoduodenectomy. Clinical, biological, intraoperative, and pathological characteristics were prospectively recorded. Pancreatic fistula was graded according to the International Study Group on Pancreatic Fistula classification. A composite endpoint was defined as pancreas-specific complications including pancreatic fistula, intra-abdominal abscess, postoperative hemorrhage, and bile leak. The diagnostic accuracy of serum C reactive protein on postoperative day 1 in predicting adverse postoperative outcomes was assessed by ROC curve analysis. RESULTS: Six patients (5%) died and 87 (79%) experienced postoperative complications (pancreatic-specific complications: n = 58 (53%); pancreatic fistula: n = 48 (44%)). A soft pancreatic gland texture, a main pancreatic duct diameter < 3 mm and serum C-reactive protein >= 100 mg/L on postoperative day 1 were independent predictors of pancreas-specific complications (p < 0.01) and pancreatic fistula (p < 0.01). ROC analysis showed that serum C-reactive protein >= 100 mg/L on postoperative day 1 was a significant predictor of pancreatic fistula (AUC: 0.70; 95%CI: 0.60-0.79, p < 0.01) and pancreas-specific complications (AUC: 0.72; 95%CI: 0.62-0.82, p < 0.01). ROC analysis showed that serum C-reactive protein >= 50 mg/L at discharge was a significant predictor of 90-day hospital readmission (AUC: 0.70; 95%CI: 0.60-0.79, p < 0.01). CONCLUSIONS: C-reactive protein levels reliably predict risks of pancreatic fistula, pancreas-specific complications, and hospital readmission, and should be inserted in risk-stratified management algorithms after pancreaticoduodenectomy. PMID- 29327312 TI - Examining the Prospective Relationship between Pre-Disaster Respiratory Sinus Arrhythmia and Post-Disaster Posttraumatic Stress Disorder Symptoms in Children. AB - Previous studies have examined the concurrent relationship between posttraumatic stress disorder (PTSD) and a range of psychophysiological variables, including respiratory sinus arrhythmia (RSA). However, there is a lack of research examining the prospective development of trauma symptomatology, and the directionality of the association between RSA level and PTSD has yet to be determined. The current study is the first prospective study to examine whether RSA level and RSA reactivity are risk factors for PTSD symptoms in children. Assessments were conducted both prior to (Time 1) and following (Time 2) a natural disaster (i.e., Hurricane Katrina). Participants were 36 children who were 3-6 years-old during the Time 1 assessment. Structured diagnostic interviews were used to assess PTSD symptoms at both Time 1 and Time 2. RSA level during a neutral stimulus, RSA reactivity to emotional video stimuli (distress, joy, and trauma videos) and RSA reactivity to memory stimuli (remote happy memory, trauma memory, mother's recall of the trauma memory) were also collected at both time points. Time 1 RSA level during a neutral stimulus was a significant predictor of Time 2 PTSD symptoms (controlling for age, Time 1 PTSD symptoms, Time 2 neutral RSA level), such that lower RSA during a neutral condition was related to higher PTSD symptoms. Also, Time 1 RSA reactivity in response to memory (but not video) stimuli, in the form of relatively less vagal withdrawal, was a significant predictor of more Time 2 PTSD symptoms (controlling for age, Time 1 PTSD symptoms, Time 2 RSA reactivity). This unique prospective study provides evidence for level of RSA and RSA reactivity as pre-existing clinical markers of stress sensitivity that predict psychopathology following a trauma. PMID- 29327313 TI - Reduction of Pain Sensitivity after Somatosensory Therapy in Children with Autism Spectrum Disorders. AB - Children with autism spectrum disorders (ASD) often present with somatosensory dysfunction including an abnormal reactivity to tactile stimuli and altered pain perception. A therapy based on somatosensory stimuli has shown effectiveness in reducing pain sensitivity among adults with cerebral palsy. The present study aims at exploring the influence of somatosensory therapy on somatosensory parameters in children with ASD. Children with high-functioning ASD were randomly assigned to either the intervention (n = 29) or the control group (n = 30). The intervention group received a somatosensory therapy consisting of four types of exercises (touch, proprioception, vibration, stereognosis). Somatosensory function (pressure pain thresholds, tactile thresholds, stereognosis, proprioception) was assessed before and immediately after the therapy. Children in the intervention group showed a significant reduction of pain sensitivity and increase of tactile sensitivity after treatment, whereas children in the control group displayed increased pain sensitivity in the absence of changes of tactile sensitivity. No changes were observed for proprioception or stereognosis. The repetitive somatosensory stimulation therapy led to a decrease of pain sensitivity and an increase of tactile sensitivity. These findings may have important research and clinical implications, as promoting early tactile interventions in children with ASD may lead to a more adequate development of somatosensory processing and less somatosensory abnormalities upon adult life. PMID- 29327315 TI - Maternal bonding behavior, adult intimate relationship, and quality of life. AB - Continuity and discontinuity in the development of social relationships have been investigated by reviewing the course of social bonds and by analyzing the effects of a sound intimate relationship in adulthood in conjunction with recalled maternal bonding on the quality of life among students.A questionnaire-based study of 207 students was conducted. Perceptions of maternal bonding were designated as being representative of one of the two contrasting bonding types "optimal maternal bonding" and "affectionless maternal control" assessed by the Parental Bonding Instrument (PBI) and combined with perceptions of a sound intimate adult relationship measured by the Family Assessment Measure III Dyadic Relationships Scale (FAM-III-D). Quality of life and general health data were determined by using the World Health Organization Quality of Life (WHOQOL-BREF) instrument.Students who reported "optimal maternal bonding" had intimate relationships in adulthood that were of significantly higher quality than those who recalled "affectionless maternal control". Students who recalled "optimal maternal bonding" and described their intimate relationship as sound showed significantly higher scores in all domains of quality of life and indicated having better general health than those who reported "affectionless maternal control" and a sound intimate relationship.A sound intimate relationship in adulthood does not appear to compensate the impact of a recalled maternal bonding behavior in terms of affectionless control, on quality of life. Furthermore, results seem to support the hypothesis of continuity of the development of social relationships among psychologically well individuals based on the association between maternal bonding and later intimate relationships. PMID- 29327316 TI - [Diagnosis, differential diagnosis and therapy of substance use disorders in general hospital (general section)]. AB - Substance use disorders are becoming an increasingly significant problem in general hospitals and hence play a key role in consultation- and liaison psychiatry. Diverse psychotropic effects of various substances mimic psychiatric disorders. An alcohol intoxication can present depressive or manic symptoms, a cannabis delirium can present as a psychosis while stimulants use can suggest the diagnosis of an anxiety disorder. Obtaining dual diagnoses by identifying substance-induced and non-substance-induced psychopathologies is clinically challenging.The aim of this article is to systematically describe the psychopathology, pathophysiology and therapeutic options of substance-use disorders particularly relevant for consultation and liaison psychiatry. PMID- 29327314 TI - Computational Modeling for Cardiac Resynchronization Therapy. AB - Cardiac resynchronization therapy (CRT) is an effective treatment for heart failure (HF) patients with an electrical substrate pathology causing ventricular dyssynchrony. However 40-50% of patients do not respond to treatment. Cardiac modeling of the electrophysiology, electromechanics, and hemodynamics of the heart has been used to study mechanisms behind HF pathology and CRT response. Recently, multi-scale dyssynchronous HF models have been used to study optimal device settings and optimal lead locations, investigate the underlying cardiac pathophysiology, as well as investigate emerging technologies proposed to treat cardiac dyssynchrony. However the breadth of patient and experimental data required to create and parameterize these models and the computational resources required currently limits the use of these models to small patient numbers. In the future, once these technical challenges are overcome, biophysically based models of the heart have the potential to become a clinical tool to aid in the diagnosis and treatment of HF. PMID- 29327318 TI - Evaluation of water quality and human risk assessment due to heavy metals in groundwater around Muledane area of Vhembe District, Limpopo Province, South Africa. AB - Groundwater is considered as good alternative to potable water because of its low turbidity and perceived low contamination. The study assessed the physio-chemical and heavy metals concentrations in eight randomly selected boreholes water at Muledane village in Limpopo Province of South Africa and the results were compared with South African National standard permissible limit. The impacts of heavy metals on human health was further determined by performing quantitative risk assessment through ingestion and dermal adsorption of heavy metals separately for adults and children in order to estimate the magnitude of heavy metals in the borehole samples. Parameters such as turbidity, nitrate, iron, manganese and chromium in some investigated boreholes did not comply with standard limits sets for domestic water use. Multivariate analyses using principal component analysis and hierarchical cluster analysis revealed natural and anthropogenic activities as sources of heavy metal contamination in the borehole water samples. The calculated non-carcinogenic effects using hazard quotient toxicity potential, cumulative hazard index and chronic daily intake of groundwater through ingestion and dermal adsorption pathways were less than a unity, which showed that consumption of the water could pose little or no significant health risk. However, maximum estimated values for an individual exceeded the risk limit of 10-6 and 10-4 with the highest estimated carcinogenic exposure risk (CRing) for Cr and Pb in the groundwater. This could pose potential health risk to both adults and children in the investigated area. Therefore, precaution needs to be taken to avoid potential CRing of people in Muledane area especially, children using the borehole water. PMID- 29327317 TI - Transcript levels of members of the SLC2 and SLC5 families of glucose transport proteins in eel swimbladder tissue: the influence of silvering and the influence of a nematode infection. AB - The rate of glucose metabolism has been shown to be correlated to glucose uptake in swimbladder gas gland cells. Therefore, it is assumed that in the European eel silvering, i.e., the preparation of the eel for the spawning migration to the Sargasso Sea, coincides with an enhanced capacity for glucose uptake. To test this hypothesis expression of all known glucose transport proteins has been assessed at the transcript level in yellow and in silver eels, and we also included Anguillicola crassus infected swimbladders. Glucose uptake by rete mirabile endothelial cells could be crucial for the countercurrent exchange capacity of the rete. Therefore, this tissue was also included in our analysis. The results revealed expression of ten different members of the slc2 family of glucose transporters, of four slc5 family members, and of kiaa1919 in gas gland tissue. Glucose transporters of the slc2 family were expressed at very high level, and slc2a1b made up about 80% of all slc2 family members, irrespective of the developmental state or the infection status of the eel. Overall, the slc5 family contributed to only about 8% of all detected glucose transport transcripts in gas gland tissue, and the slc2 family to more than 85%. In rete capillaries, the contribution of sodium-dependent glucose transporters was significantly higher, leaving only 66% for the slc2 family of glucose transporters. Neither silvering nor the infection status had a significant effect on the expression of glucose transporters in swimbladder gas gland tissue, suggesting that glucose metabolism of eel gas gland cells may not be related to transcriptional changes of glucose transport proteins. PMID- 29327319 TI - Antidepressant-Related Black Thyroid. PMID- 29327320 TI - Phylogenetic Analysis and Biological Evaluation of Marine Endophytic Fungi Derived from Red Sea Sponge Hyrtios erectus. AB - Forty-four endophytic fungal isolates obtained from marine sponge, Hyrtios erectus, were evaluated and screened for their hydrolase activities. Most of the isolates were found to be prolific producers of hydrolytic enzymes. Only 11 isolates exhibited maximum cellular contents of lipids, rhamnolipids, and protein in the fungal isolates under the isolation numbers MERVA5, MERVA22, MERVA25, MERVA29, MERVA32, MERVA34, MERV36, MERVA39, MERVA42, MERVA43, and MERVA44. These isolate extracts exhibit the highest reducing activities against carbohydrate metabolizing enzymes including alpha-amylase, alpha-glucosidase, beta glucosidase, beta-glucuronidase, and tyrosinase. Consequently, based on morphological and cultural criteria, as well as sequence information and phylogenetic analysis, these isolates could be identified and designated as Penicillium brevicombactum MERVA5, Arthrinium arundinis MERVA22, Diaporthe rudis MERVA25, Aspergillus versicolor MERVA29, Auxarthron alboluteum MERVA32, Dothiorella sarmentorum MERVA34, Lophiostoma sp. MERVA36, Fusarium oxysporum MERVA39, Penicillium chrysogenum MERVA42, Penicillium polonicum MERVA43, and Trichoderma harzianum MERVA44. The endophytic fungal species, D. rudis MERVA25, P. polonicum MERVA43, Lophiostoma sp. MERVA36, A. alboluteum MERVA32, T. harzianum MERVA44, F. oxysporum MERVA39, A. versicolor MERVA29, and P. chrysogenum MERVA42 extracts, showed significant hepatitis C virus (HCV) inhibition. Moreover, D. sarmentorum MERVA34, P. polonicum MERVA43, and T. harzianum MERVA44 extracts have the highest antitumor activity against human hepatocellular carcinoma cells (HepG2). PMID- 29327321 TI - Preliminary Psychometric Testing of the Postpartum Depression Predictors Inventory-Revised (PDPI-R) in Portuguese Women. AB - Introduction Postpartum depression (PPD) is a prevalent condition with a serious impact. The early identification of women at risk for developing PPD allows for primary prevention and the delivery of timely appropriate referrals. This study investigated the validity and reliability of the postnatal version of the Postpartum Depression Predictors Inventory-Revised (PDPI-R), an instrument widely studied internationally, in Portuguese women. Methods The sample consisted of 204 women who participated in an online cross-sectional survey. Participants completed the European Portuguese versions of the PDPI-R, the Edinburgh Postnatal Depression Scale (EPDS), and the Postnatal Negative Thoughts Questionnaire at 1-2 months postpartum. Additionally, ROC analyses were performed to conduct an exploratory analysis of the instruments' predictive validity. Results The prevalence rates of clinical postpartum depressive symptoms were 27.5 and 14.2% using the cut-off scores of 9 and 12, respectively, on the EPDS. The European Portuguese postnatal version of the PDPI-R demonstrated acceptable reliability and satisfactory construct and convergent validity. When using the EPDS > 9 cut off score, the exploratory analyses yielded a sensitivity of 76.8% and a specificity of 73.0% with a cut-off score of 5.5 [area under the curve = 0.816]. Discussion These preliminary findings encourage the use of the postnatal version of the PDPI-R as a screening tool to identify Portuguese women at high risk for developing PPD. Subsequent assessments are needed to support the routine application of the PDPI-R both in research and for clinical purposes. PMID- 29327322 TI - Molecular characterization of avian malaria in the spotless starling (Sturnus unicolor). AB - We studied the prevalence and genetic diversity of malaria parasites in the poorly investigated spotless starling (Sturnus unicolor) breeding in central Spain, aiming to describe the phylogenetic relationships among them and with other haemosporidians infecting the genus Sturnus. A total of 180 nestlings and 180 adult individuals from four different breeding seasons were screened for haemosporidian parasites using a nested PCR approach for the genera Plasmodium and Haemoproteus. Although the malaria prevalence ranged between years, the overall prevalence was 6.94%. Adults had a higher prevalence than chicks: 12.77 vs. 1.11%, respectively. We molecularly characterized avian malaria isolated in peripheral blood samples taken from malaria-infected individuals. Sequence analyses revealed four unique Plasmodium lineages of avian malaria (STURUNI01, STURUNI02, SYAT05, SGS1) in our spotless starling population. The phylogenetic analysis showed a well-supported clade comprised by STURUNI01, STURUNI02, and SYAT05. The most common lineage (SYAT05) has been previously found in 26 other avian host species, including populations of spotless starling in Portugal. Because this sedentary species is widely distributed throughout the Iberian Peninsula, we suggest that the local transmission of these lineages might place migratory birds at infection risk. PMID- 29327323 TI - Inclusion complex and nanoclusters of cyclodextrin to increase the solubility and efficacy of albendazole. AB - Albendazole (ABZ), a benzimidazole widely used to control gastrointestinal parasites, is poorly soluble in water, resulting in variable and incomplete bioavailability. This has favored the appearance ABZ-resistant nematodes and, consequently, an increase in its clinical ineffectiveness. Among the pharmaceutical techniques developed to increase drug efficacy, cyclodextrins (CDs) and other polymers have been extensively used with water-insoluble pharmaceutical drugs to increase their solubility and availability. Our objective was to prepare ABZ formulations, including beta-cyclodextrin (betaCD) or hydroxypropyl-beta-cyclodextrin (HPbetaCD), associated or not to the water soluble polymer polyvinylpyrrolidone (PVP). These formulations had their solubility and anthelmintic effect both evaluated in vitro. Also, their anthelmintic efficacy was evaluated in lambs naturally infected with gastrointestinal nematodes (GIN) through the fecal egg count (FEC) reduction test. In vitro, the complex ABZ/HPbetaCD had higher solubility than ABZ/betaCD. The addition of PVP to the complexes increased solubility and dissolution rates more effectively for ABZ/HPbetaCD than for ABZ/betaCD. In vivo, 48 lambs naturally infected with GIN were divided into six experimental groups: control, ABZ, ABZ/betaCD, ABZ/betaCD-PVP, ABZ/HPbetaCD, and ABZ/HPbetaCD-PVP. Each treated animal received 10 mg/kg of body weight (based on the ABZ dose) for three consecutive days. After 10 days of the last administered dose, treatment efficacy was calculated. The efficacy values were as follows: ABZ (70.33%), ABZ/betaCD (85.33%), ABZ/betaCD-PVP (82.86%), ABZ/HPbetaCD (78.37%), and ABZ/HPbetaCD-PVP (43.79%). In vitro, ABZ/HPbetaCD and ABZ/HPbetaCD-PVP had high solubility and dissolution rates. In vivo, although the efficacies of ABZ/betaCD, ABZ/betaCD PVP, and ABZ/HPbetaCD increased slightly when compared to pure ABZ, this increase was not significant (P > 0.05). PMID- 29327324 TI - Divergent Cryptosporidium parvum subtype and Enterocytozoon bieneusi genotypes in dromedary camels in Algeria. AB - Little information is available on the occurrence of the zoonotic protists Cryptosporidium spp. and none on Enterocytozoon bieneusi in camels. This preliminary study was conducted to examine the identity of Cryptosporidium subtypes and E. bieneusi genotypes in dromedary camels in Algeria. A total of 39 fecal specimens were collected from young camels. PCR-sequence analysis of the small subunit rRNA was used to detect and genotype Cryptosporidium spp. Cryptosporidium parvum present was further subtyped by sequence analysis of the 60 kDa glycoprotein gene. PCR-sequence analysis of the ribosomal internal transcribed spacer gene was used to detect and genotype E. bieneusi. Altogether, two and eight of the specimens analyzed were positive for C. parvum and E. bieneusi, respectively. The former was identified as a new subtype that is genetically related to the C. hominis If subtype family, whereas the latter was identified as two related genotypes (Macaque1 and a novel genotype) in the newly assigned E. bieneusi genotype group 8. Although they are not known hosts for C. parvum and E. bieneusi, camels are apparently infected with genetically distinct variants of these pathogens. PMID- 29327325 TI - Circulating level of Th17 cells is associated with sensitivity to glucocorticoids in patients with immune thrombocytopenia. AB - Glucocorticoids are a widely recognized first-line therapy for immune thrombocytopenia (ITP). However, some patients are unresponsive to glucocorticoid therapy for reasons that remain unclear. Accumulating evidence suggests that CD4+ T-cell abnormalities play a crucial role in the development of ITP. In the present study, we investigated peripheral blood CD4+ T cells, Th17-associated cytokines, and the mRNA expression level of Th17 transcription factor-RORgammat in patients with newly-diagnosed ITP before glucocorticoid therapy. The study involved 27 newly-diagnosed patients. Th17-cell levels in the peripheral blood of newly-diagnosed ITP patients were associated with responsiveness to glucocorticoid therapy. Newly-diagnosed ITP patients who were not sensitive to glucocorticoid treatment were found to have lower levels of Th17 cells. Quantifying Th17 cells may allow physicians to predict prognosis of glucocorticoid treatment and stratify therapy for those with ITP. This strategy may provide a new approach to the treatment of glucocorticoid-insensitive patients. PMID- 29327326 TI - IL-11 facilitates a novel connection between RA joint fibroblasts and endothelial cells. AB - IL-11 has been detected in inflamed joints; however, its role in the pathogenesis of arthritis is not yet clear. Studies were conducted to characterize the expression and functional significance of IL-11 and IL-11Ralpha in rheumatoid arthritis (RA). IL-11 levels were elevated in RA synovial fluid (SF) compared to osteoarthritis (OA) SF and plasma from RA, OA and normal individuals (NLs). Morphologic studies established that IL-11 was detected in lining fibroblasts and macrophages in addition to sublining endothelial cells and macrophages at higher levels in RA compared to NL synovial tissues. Since IL-11Ralpha was exclusively expressed in RA fibroblasts and endothelial cells, macrophages were not involved in IL-11 effector function. Ligation of IL-11 to IL-11Ralpha strongly provoked fibroblast infiltration into RA joint, while cell proliferation was unaffected by this process. Secretion of IL-8 and VEGF from IL-11 activated RA fibroblasts was responsible for the indirect effect of IL-11 on endothelial cell transmigration and tube formation. Moreover, IL-11 blockade impaired RA SF capacity to elicit endothelial cell transmigration and tube formation. We conclude that IL-11 binding to endothelial IL-11Ralpha can directly induce RA angiogenesis. In addition, secretion of proangiogenic factors from migrating fibroblasts potentiated by IL-11 can indirectly contribute to RA neovascularization. PMID- 29327329 TI - microRNA-mediated R gene regulation: molecular scabbards for double-edged swords. AB - Plant resistance (R) proteins are immune receptors that recognize pathogen effectors and trigger rapid defense responses, namely effector-triggered immunity. R protein-mediated pathogen resistance is usually race specific. During plant-pathogen coevolution, plant genomes accumulated large numbers of R genes. Even though plant R genes provide important natural resources for breeding disease-resistant crops, their presence in the plant genome comes at a cost. Misregulation of R genes leads to developmental defects, such as stunted growth and reduced fertility. In the past decade, many microRNAs (miRNAs) have been identified to target various R genes in plant genomes. miRNAs reduce R gene levels under normal conditions and allow induction of R gene expression under various stresses. For these reasons, we consider R genes to be double-edged "swords" and miRNAs as molecular "scabbards". In the present review, we summarize the contributions and potential problems of these "swords" and discuss the features and production of the "scabbards", as well as the mechanisms used to pull the "sword" from the "scabbard" when needed. PMID- 29327330 TI - Microbiome analysis and -omics studies of microbial denitrification processes in wastewater treatment: recent advances. AB - Nitrogen pollution is an increasingly severe worldwide problem because of drainage of nitrogen-containing wastewater and intensive application of nitrogen containing fertilizers. Denitrification, a key process in nitrogen cycles, is commonly employed for nitrogen removal in engineered wastewater treatment systems. Biological denitrification is performed by denitrifying microbes (bacteria) that use nitrate as terminal electron acceptor. Better understanding the functions of diverse microbial populations in denitrification-based wastewater treatment systems, and the interactions of these populations with operating environments, is essential for improving both treatment performance and system stability. Recent advances in "meta-omics" (e. g., genomics, transcriptomics, proteomics, metabolomics), other molecular biology tools, and microbiome analysis have greatly enhanced such understanding. This minireview summarizes recent findings regarding microbial community structure and composition, key functional microbes and their physiology, functional genes involved in nitrogen cycle, and responses of microbes and their genes to changes of environmental factors or operating parameters, in denitrification processes in wastewater treatment systems. Of particular interest are heterotrophic denitrification systems (which require alternative organic carbon sources) and the autotrophic denitrification systems (which do not require an external carbon source). Integrated microbiome and -omics approaches have great future potential for determination of optimal environmental and biotechnological parameters, novel process development, and improvement of nitrogen removal efficiency and system stability. PMID- 29327328 TI - Genetic analysis of very obese children with autism spectrum disorder. AB - Autism spectrum disorder (ASD) is defined by the triad of deficits in social interactions, deficits in communication, and repetitive behaviors. Common co morbidities in syndromic forms of ASD include intellectual disability, seizures, and obesity. We asked whether very obese children with ASD had different behavioral, physical and genetic characteristics compared to children with ASD who were not obese. We found that very obese children with ASD had significantly poorer scores on standardized behavioral tests. Very obese boys with ASD had lower full scale IQ and increased impairments with respect to stereotypies, communication and social skills. Very obese girls with ASD had increased impairments with respect to irritability and oppositional defiant behavior. We identified genetic lesions in a subset of the children with ASD and obesity and attempted to identify enriched biological pathways. Our study demonstrates the value of identifying co-morbidities in children with ASD as we move forward towards understanding the biological processes that contribute to this complex disorder and prepare to design customized treatments that target the diverse genetic lesions present in individuals with ASD. PMID- 29327331 TI - Calibration of peripheral perception of shape with and without saccadic eye movements. AB - The cortical representations of a visual object differ radically across saccades. Several studies claim that the visual system adapts the peripheral percept to better match the subsequent foveal view. Recently, Herwig, Weibeta, and Schneider (2015, Annals of the New York Academy of Sciences, 1339(1), 97-105) found that the perception of shape demonstrates a saccade-dependent learning effect. Here, we ask whether this learning actually requires saccades. We replicated Herwig et al.'s (2015) study and introduced a fixation condition. In a learning phase, participants were exposed to objects whose shape systematically changed during a saccade, or during a displacement from peripheral to foveal vision (without a saccade). In a subsequent test, objects were perceived as less (more) curved if they previously changed from more circular (triangular) in the periphery to more triangular (circular) in the fovea. Importantly, this pattern was seen both with and without saccades. We then tested whether a variable delay between the presentations of the peripheral and foveal objects would affect their association hypothetically weakening it at longer delays. Again, we found that shape judgments depended on the changes experienced during the learning phase and that they were similar in both the saccade and fixation conditions. Surprisingly, they were not affected by the delay between the peripheral and foveal presentations over the range we tested. These results suggest that a general associative process, independent of saccade execution, contributes to the perception of shape across viewpoints. PMID- 29327327 TI - Identifying potentially common genes between dyslipidemia and osteoporosis using novel analytical approaches. AB - Dyslipidemia (DL) is closely related to osteoporosis (OP), while the exact common genetic mechanisms are still largely unknown. We proposed to use novel genetic analysis methods with pleiotropic information to identify potentially novel and/or common genes for the potential shared pathogenesis associated with OP and/or DL. We assessed the pleiotropy between plasma lipid (PL) and femoral neck bone mineral density (FNK BMD). We jointly applied the conditional false discovery rate (cFDR) method and the genetic analysis incorporating pleiotropy and annotation (GPA) method to the summary statistics provided by genome-wide association studies (GWASs) of FNK BMD (n = 49,988) and PL (n = 188,577) to identify potentially novel and/or common genes for BMD/PL. We found strong pleiotropic enrichment between PL and FNK BMD. Two hundred and forty-five PL SNPs were identified as potentially novel SNPs by cFDR and GPA. The corresponding genes were enriched in gene ontology (GO) terms "phospholipid homeostasis" and "chylomicron remnant clearance". Three SNPs (rs2178950, rs9939318, and rs9368716) might be the pleiotropic ones and the corresponding genes NLRC5 (rs2178950) and TRPS1 (rs9939318) were involved in NF-kappaB signaling pathway and Wnt signaling pathway as well as inflammation and innate immune processes. Our study validated the pleiotropy between PL and FNK BMD, and corroborated the reliability and high efficiency of cFDR and GPA methods in further analyses of existing GWASs with summary statistics. We identified potentially common and/or novel genes for PL and/or FNK BMD, which may provide new insight and direction for further research. PMID- 29327332 TI - Salience from multiple feature contrast: Evidence from saccade trajectories. AB - We used eye tracking to quantify the extent to which combinations of salient contrasts (orientation, luminance, and movement) influence a central salience map that guides eye movements. We found that luminance combined additively with orientation and movement, suggesting that the salience system processes luminance somewhat independently of the two other features. On the other hand, orientation and movement together influenced salience underadditively, suggesting that these two features are processed nonindependently. This pattern of results suggests that the visual system does not sum sources of salience linearly, but treats some sources of salience as redundant. PMID- 29327333 TI - Streptomyces flavalbus sp. nov., an actinobacterium isolated from rhizosphere of maize (Zea mays L.). AB - A novel actinobacterium, designated strain NEAU-QY24T, was isolated from the rhizosphere of corn (Zea mays L.). A polyphasic approach was employed to determine the taxonomic status of strain NEAU-QY24T. The isolate was found to have chemical and morphological properties of the genus Streptomyces, with high 16S rRNA gene sequence similarity to Streptomyces lanatus JCM 4332T (98.3%) and clustered phylogenetically with Streptomyces lannensis JCM 16578T (98.2%). The cell wall was found to contain meso-diaminopimelic acid and the whole cell sugars were identified as glucose and ribose. The predominant menaquinones were identified as MK-9(H6), MK-9(H4) and MK-9(H8). The phospholipid profile was found to consisted of diphosphatidylglycerol, phosphatidylethanolamine and phosphatidylinositol. The major fatty acids were identified as iso-C16:0, C16:0, anteiso-C17:0 and C15:0. A combination of DNA-DNA hybridization experiments and phenotypic tests were carried out between strain NEAU-QY24T and its closely related strains, which clarified their relatedness and demonstrated that strain NEAU-QY24T could be distinguished from these strains. These data indicate that the isolate should be recognised as a new species of the genus Streptomyces, for which the name Streptomyces flavalbus sp. nov. is proposed. The type strain is NEAU-QY24T (= CGMCC 4.7400T = DSM 104539T). PMID- 29327334 TI - A masked least-squares smoothing procedure for artifact reduction in scanning-EMG recordings. AB - Scanning-EMG is an electrophysiological technique in which the electrical activity of the motor unit is recorded at multiple points along a corridor crossing the motor unit territory. Correct analysis of the scanning-EMG signal requires prior elimination of interference from nearby motor units. Although the traditional processing based on the median filtering is effective in removing such interference, it distorts the physiological waveform of the scanning-EMG signal. In this study, we describe a new scanning-EMG signal processing algorithm that preserves the physiological signal waveform while effectively removing interference from other motor units. To obtain a cleaned-up version of the scanning signal, the masked least-squares smoothing (MLSS) algorithm recalculates and replaces each sample value of the signal using a least-squares smoothing in the spatial dimension, taking into account the information of only those samples that are not contaminated with activity of other motor units. The performance of the new algorithm with simulated scanning-EMG signals is studied and compared with the performance of the median algorithm and tested with real scanning signals. Results show that the MLSS algorithm distorts the waveform of the scanning-EMG signal much less than the median algorithm (approximately 3.5 dB gain), being at the same time very effective at removing interference components. Graphical Abstract The raw scanning-EMG signal (left figure) is processed by the MLSS algorithm in order to remove the artifact interference. Firstly, artifacts are detected from the raw signal, obtaining a validity mask (central figure) that determines the samples that have been contaminated by artifacts. Secondly, a least-squares smoothing procedure in the spatial dimension is applied to the raw signal using the not contaminated samples according to the validity mask. The resulting MLSS-processed scanning-EMG signal (right figure) is clean of artifact interference. PMID- 29327335 TI - Classification and characterization of postural transitions using instrumented shoes. AB - The frequency and quality of sit-to-stand and stand-to-sit postural transitions decrease with age and are highly relevant for fall risk assessment. Accurate classification and characterization of these transitions in daily life of older adults are therefore needed. In this study, we propose to use instrumented shoes for postural transition classification as well as transition duration estimation from insole force signals. In the first part, data were collected with 10 older adults and 10 young participants performing transitions in the laboratory while wearing the instrumented shoes, without arm assistance. A wavelet approach was used to transform the insole force data, and candidate events were selected for transition duration estimation. Transition durations were then validated against a model based on force plate reference. Vertical force estimation was also compared to force plate measurement. In the second part, postural transitions were classified in daily life using the instrumented shoes and validated against a highly accurate wearable system. Transition duration was estimated with an error ranging from 10 to 20% while the error for vertical force estimation was 7%. Postural transition classification was achieved with excellent sensitivity and precision exceeding 90%. In conclusion, the instrumented shoes are suitable for classifying and characterizing postural transitions in daily life conditions of healthy older adults. Graphical abstract "Experimental setup showing instrumented shoes, reference force plate, as well as IMUs used for postural transition classification and duration estimation comparison". PMID- 29327337 TI - Generalized nonmotor (absence) seizures-What do absence, generalized, and nonmotor mean? AB - OBJECTIVE: Clinical absences are now classified as "generalized nonmotor (absence) seizures" by the International League Against Epilepsy (ILAE). The aim of this paper is to critically review the concept of absences and to put the accompanying focal and motor symptoms into the context of the emerging pathophysiological knowledge. METHODS: For this narrative review we performed an extensive literature search on the term "absence," and analyzed the plethora of symptoms observed in clinical absences. RESULTS: Arising from the localization and the involved cortical networks, motor symptoms may include bilateral mild eyelid fluttering and mild myoclonic jerks of extremities. These motor symptoms may also occur unilaterally, analogous to a focal motor seizure with Jacksonian march. Furthermore, electroencephalography (EEG) abnormalities may exhibit initial frontal focal spikes and consistent asymmetries. Electroclinical characteristics support the cortical focus theory of absence seizures. Simultaneous EEG/functional magnetic resonance imaging (fMRI) measurements document cortical deactivation and thalamic activation. Cortical deactivation is related to slow waves and disturbances of consciousness of varying degrees. Motor symptoms correspond to the spike component of the 3/s spike-and-wave-discharges. Thalamic activation can be interpreted as a response to overcome cortical deactivation. Furthermore, arousal reaction during drowsiness or sleep triggers spikes in an abnormally excitable cortex. An initial disturbance in arousal mechanisms ("dyshormia") might be responsible for the start of this abnormal sequence. SIGNIFICANCE: The classification as "generalized nonfocal and nonmotor (absence) seizure" does not covey the complex semiology of a patient's clinical events. PMID- 29327338 TI - National norms for the expanded version of the inventory of depression and anxiety symptoms (IDAS-II). AB - OBJECTIVES: The present study developed normative data for the expanded version of the Inventory of Depression and Anxiety Symptoms (IDAS-II). The IDAS-II is a self-report measure containing 18 factor-analytically derived scales, each assessing a specific symptom of internalizing disorders, including depression, anxiety disorders, OCD, bipolar disorder, and PTSD. These normative data were used to examine group differences in internalizing symptoms across demographic characteristics. METHOD: A total of 1,836 Mechanical Turk users (47.6% male; mean age = 35.6) completed the IDAS-II; the sample was weighted to be representative of the U.S. population on gender, age, and race/ethnicity. RESULTS: Percentiles were derived for each of the IDAS-II scales. Age was the demographic characteristic most consistently associated with lower internalizing symptoms. CONCLUSIONS: The present study provides information on the distribution of specific internalizing symptoms in a large national sample, as well as on how these symptoms are related to demographic characteristics. PMID- 29327336 TI - Simultaneous utilization of multiple cues in judgments of learning. AB - There is much evidence that metacognitive judgments, such as people's predictions of their future memory performance (judgments of learning, JOLs), are inferences based on cues and heuristics. However, relatively little is known about whether and when people integrate multiple cues in one metacognitive judgment or focus on a single cue without integrating further information. The current set of experiments systematically addressed whether and to what degree people integrate multiple extrinsic and intrinsic cues in JOLs. Experiment 1 varied two cues: number of study presentations (1 vs. 2) and font size (18 point vs. 48 point). Results revealed that people integrated both cues in their JOLs. Experiment 2 demonstrated that the two word characteristics concreteness (abstract vs. concrete) and emotionality (neutral vs. emotional) were integrated in JOLs. Experiment 3 showed that people integrated all four cues in their JOLs when manipulated simultaneously. Finally, Experiment 4 confirmed integration of three cues that varied on a continuum rather than in two easily distinguishable levels. These results demonstrate that people have a remarkable capacity to integrate multiple cues in metacognitive judgments. In addition, our findings render an explanation of cue effects on JOLs in terms of demand characteristics implausible. PMID- 29327339 TI - Electronic registry for the management of childhood obesity in Greece. AB - BACKGROUND: Obesity in childhood and adolescence represents a major health problem in our century. In Greece, more than 30%-35% of children and adolescents are either overweight or obese. MATERIALS AND METHODS: Using information and communication technologies, we developed a "National Registry for the Prevention and Management of Overweight and Obesity in Childhood and Adolescence" for guidance and training of Pediatricians and General Practitioners. The application supports interoperability with other national infrastructures and multi-layered security spanning preventive, detective and administrative controls. The Patient Summary Dataset includes information on medical history, family history, medications, immunizations, clinical examination and laboratory findings and appointment booking service. RESULTS: The application was launched in September 2015 and is accessible by: http://app.childhood-obesity.gr/. Based on the data that the doctor registers, the system calculates a personalized therapeutic algorithm that provides information on diet, physical exercise and sleep, as well as guidance on laboratory investigations and referral to specialized centres. A pilot study performed in 1270 children and adolescents indicated that using this system resulted in a reduction in obesity rates by 30% and overweight rates by 35% within 1 year. CONCLUSIONS: This National e-Health System appears to be effective in the management of overweight and obesity in childhood and adolescence. PMID- 29327341 TI - Combined thoracic paravertebral and pectoral nerve blocks for breast surgery under sedation: a prospective observational case series. AB - Avoidance of general anaesthesia for breast surgery may be because of clinical reasons or patient choice. There is emerging evidence that the use of regional anaesthesia and the avoidance of volatile anaesthetics and opioid analgesia may have beneficial effects on oncological outcomes. We conducted a prospective observational case series of 16 breast cancer surgeries performed under thoracic paravertebral plus pectoral nerve block with propofol sedation to demonstrate feasibility of technique, patient acceptability and surgeon satisfaction. Fifteen out of 16 cases were successfully completed under sedation and regional anaesthesia, with one conversion to general anaesthesia. Eleven out of 16 cases required low-dose intra-operative opioid analgesia. Out of the 15 surgical procedures completed under regional anaesthesia with sedation, all patients experienced either no or minimal intra-operative pain, and all would choose this anaesthetic technique again. Surgeon-reported operating conditions were 'indistinguishable from general anaesthesia' in most cases, and surgeons were 'extremely satisfied' or 'satisfied' with the technique after every procedure. Combined thoracic paravertebral plus pectoral nerve block with intra-operative sedation is a feasible technique for breast surgery. PMID- 29327340 TI - Shank3-deficient thalamocortical neurons show HCN channelopathy and alterations in intrinsic electrical properties. AB - KEY POINTS: Shank3 increases the HCN channel surface expression in heterologous expression systems. Shank3Delta13-16 deficiency causes significant reduction in HCN2 expression and Ih current amplitude in thalamocortical (TC) neurons. Shank3Delta13-16 - but not Shank3Delta4-9 -deficient TC neurons share changes in basic electrical properties which are comparable to those of HCN2-/- TC neurons. HCN channelopathy may critically mediate events downstream from Shank3 deficiency. ABSTRACT: SHANK3 is a scaffolding protein that is highly enriched in excitatory synapses. Mutations in the SHANK3 gene have been linked to neuropsychiatric disorders especially the autism spectrum disorders. SHANK3 deficiency is known to cause impairments in synaptic transmission, but its effects on basic neuronal electrical properties that are more localized to the soma and proximal dendrites remain unclear. Here we confirmed that in heterologous expression systems two different mouse Shank3 isoforms, Shank3A and Shank3C, significantly increase the surface expression of the mouse hyperpolarization-activated, cyclic-nucleotide-gated (HCN) channel. In Shank3Delta13-16 knockout mice, which lack exons 13-16 in the Shank3 gene (both Shank3A and Shank3C are removed) and display a severe behavioural phenotype, the expression of HCN2 is reduced to an undetectable level. The thalamocortical (TC) neurons from the ventrobasal (VB) complex of Shank3Delta13-16 mice demonstrate reduced Ih current amplitude and correspondingly increased input resistance, negatively shifted resting membrane potential, and abnormal spike firing in both tonic and burst modes. Impressively, these changes closely resemble those of HCN2 /- TC neurons but not of the TC neurons from Shank3Delta4-9 mice, which lack exons 4-9 in the Shank3 gene (Shank3C still exists) and demonstrate moderate behavioural phenotypes. Additionally, Shank3 deficiency increases the ratio of excitatory/inhibitory balance in VB neurons but has a limited impact on the electrical properties of connected thalamic reticular (RTN) neurons. These results provide new understanding about the role of HCN channelopathy in mediating detrimental effects downstream from Shank3 deficiency. PMID- 29327343 TI - Changes in out-of-pocket charges associated with obstetric care provided under Medicare in Australia. AB - Recent health reforms alongside unregulated provider fees have led to increased attention being given to out-of-pocket healthcare costs. This study utilised annual statistics published by the Department of Health for services provided under the Medicare Benefits Schedule (MBS) from 1992/3 to 2016/17 to identify changes in out-of-pocket charges for obstetric items over time, and estimate the change in demand for obstetric items in response to price increases. Since 1992/3 out-of-pocket charges increased by 1035% for out-of-hospital items and 77% for in hospital items. Demand for obstetric items has reduced with increasing charges. PMID- 29327342 TI - Reduced lysosomal clearance of autophagosomes promotes survival and colonization of Helicobacter pylori. AB - Evasion of autophagy is key for intracellular survival of bacteria in host cells, but its involvement in persistent infection by Helicobacter pylori, a bacterium identified to invade gastric epithelial cells, remains obscure. The aim of this study was to functionally characterize the role of autophagy in H. pylori infection. Autophagy was assayed in H. pylori-infected human gastric epithelium and the functional role of autophagy was determined via genetic or pharmacological ablation of autophagy in mouse and cell line models of H. pylori infection. Here, we showed that H. pylori inhibited lysosomal function and thereby promoted the accumulation of autophagosomes in gastric epithelial cells. Importantly, inhibiting autophagosome formation by pharmacological inhibitors or genetic ablation of BECN1 or ATG5 reduced H. pylori intracellular survival, whereas inhibition of lysosomal functions exerted an opposite effect. Further experiments demonstrated that H. pylori inhibited lysosomal acidification and the retrograde trafficking of mannose-6-phosphate receptors, both of which are known to positively regulate lysosomal function. We conclude that H. pylori subverts autophagy into a pro-survival mechanism through inhibition of lysosomal clearance of autophagosomes. Disruption of autophagosome formation offers a novel strategy to reduce H. pylori colonization in human stomachs. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29327344 TI - Quality of fresh-cut products as affected by harvest and postharvest operations. AB - There is a rising demand for fresh-cut convenience products with high quality and nutritional standards that needs to be met by the fresh-cut industry. It is well known that harvest and postharvest handling of fresh produce has a paramount impact on its quality and storage, although most of the existing literature has focused on these impacts related only to fresh produce that is destined for the final consumers. Indeed, current harvest methods and postharvest technologies have improved fruit and vegetable handling and distribution processes by slowing down physiological processes and senescence. Nonetheless, these technologies and methods may influence the quality of fresh produce as raw material for fresh-cut processing as a result of the dynamic responses of fresh produce to handling procedures and treatments. Here, we review the existing literature on the challenges facing the fresh-cut industry, focusing on the impact of harvest, maturity, and handling of fruit and vegetables on the quality of raw materials, as well as the implications for fresh-cut products. The review also highlights areas for further research with the aim of enhancing the sensorial, nutritional and biochemical quality of such products. (c) 2018 Society of Chemical Industry. PMID- 29327346 TI - Erratum. PMID- 29327345 TI - Serum lipoprotein (a) predicts acute coronary syndromes in patients with severe carotid stenosis. AB - BACKGROUND: Different cut-off values of serum lipoprotein (a) [Lp (a)] were recently identified to better stratify cardiovascular risk categories. Both pathophysiological and prognostic values of Lp (a) remain unclear. MATERIALS AND METHODS: Here, the prognostic value of Lp (a) and its correlation with intraplaque features were assessed in patients with severe carotid artery stenosis undergoing endarterectomy (n = 180). The cut-off value of 10 mg/dL for serum Lp (a) was selected to predict 24-month follow-up acute coronary syndrome (ACS). In addition, the association between serum Lp (a) and intraplaque lipids, collagen, inflammatory and vascular cells was assessed. Serum Lp (a) levels were measured by nephelometric assay. RESULTS: Patients with high Lp (a) had similar comorbidities, medications and laboratory parameters as compared to low Lp (a) levels. At 24-month follow-up, patients with high Lp (a) had more ACS as compared to low levels. Histological parameters within plaques were comparable in the study groups. No significant correlation between Lp (a) serum levels and intraplaque parameters was found, except for a weak positive association with smooth muscle cells in upstream plaque portions. When adjusted for gender, the presence of dyslipidaemia and chronic coronary artery disease, Lp (a) >=10 mg/dL remained predictive for ACS. CONCLUSIONS: Lp (a) determination could be a useful tool to predict ACS in patients with severe carotid stenosis. PMID- 29327347 TI - Unique anti-myeloma activity by thiazolidine-2,4-dione compounds with Pim inhibiting activity. AB - Proviral Integrations of Moloney virus 2 (PIM2) is overexpressed in multiple myeloma (MM) cells, and regarded as an important therapeutic target. Here, we aimed to validate the therapeutic efficacy of different types of PIM inhibitors against MM cells for their possible clinical application. Intriguingly, the thiazolidine-2,4-dione-family compounds SMI-16a and SMI-4a reduced PIM2 protein levels and impaired MM cell survival preferentially in acidic conditions, in contrast to other types of PIM inhibitors, including AZD1208, CX-6258 and PIM447. SMI-16a also suppressed the drug efflux function of breast cancer resistance protein, minimized the sizes of side populations and reduced in vitro colony forming capacity and in vivo tumourigenic activity in MM cells, suggesting impairment of their clonogenic capacity. PIM2 is known to be subject to ubiquitination-independent proteasomal degradation. Consistent with this, the proteasome inhibitors bortezomib and carfilzomib increased PIM2 protein levels in MM cells without affecting its mRNA levels. However, SMI-16a mitigated the PIM2 protein increase and cooperatively enhanced anti-MM effects in combination with carfilzomib. Collectively, the thiazolidine-2,4-dione-family compounds SMI-16a and SMI-4a uniquely reduce PIM2 protein in MM cells, which may contribute to their profound efficacy in addition to their immediate kinase inhibition. Their combination with proteasome inhibitors is envisioned. PMID- 29327349 TI - Status of the Trait Concept in Contemporary Personality Psychology: Are the Old Questions Still the Burning Questions? AB - This special issue of Journal of Personality addresses one of the cardinal concerns of personality psychology, namely, the status of traits in contemporary personality science. Trait theory is a major scientific model for personality explanation and research. Although there have been critiques of traits, typically formulated from the point of view of the social-cognitive perspective, the trait approach can be viewed as a continuously developing paradigm. However, personality psychology persists in tackling burning questions concerning the status of traits that need to be answered. Modern trait approaches confront problems such as constructing an objective personality traits assessment, connecting the descriptive traits with explanatory processes, applying traits for understanding the individual person, clarifying the relation of traits to behavior, and using traits for solving cardinal concerns of personality psychology (e.g., personality organization). This special issue presents examples of contemporary trait theories that attempt to provide possible solutions to these issues and/or delineate other main issues to be resolved by future research and theorizing. We have asked contributors to portray their approach and describe in what way their trait theory continues a historic tradition and in what respect it breaks with the past and moves trait models to more mature scientific levels. PMID- 29327350 TI - Adopting innovation in gynaecology: The introduction of e-consult. AB - OBJECTIVE: To describe the development of an e-consultation service as part of the triaging and grading process of referrals and to report on the efficacy and safety of such a service. METHODS: All gynaecology e-consults in the study period June 2015 to March 2016 were retrospectively reviewed. The outcomes of interest were the initial reduction in first face-to-face hospital visits, and the rate of re-referrals. Acute admission for the same reason, a subsequent diagnosis of underlying (pre)-malignancy, or patient death from the condition related to the index referral were selected as measures for patient safety. RESULTS: Seven thousand and forty-two (7042) referrals were made to the gynaecology service in the 10 month study period. After exclusion of referrals to colposcopy and the early pregnancy clinic, 4738 e-referrals remained. Of these, 1013 referrals (21.4%) were triaged for an e-consult. One hundred and forty-seven patients (14.5%) with an initial e-consult were re-referred within 6 months for the same condition. The reduction in face-to-face contacts was 18.2% (866/4738). No death and/or acute admission for the same reason as stated in the initial referral occurred among the patients with e-consultation and none were later diagnosed with an underlying (pre)-malignancy. CONCLUSION: E-consultation was effective at reducing the number of first outpatient face-to-face contacts without notable compromise of the quality of care or patient safety. E-consultation allows specialists to provide expert clinical guidance, management and support to the referring provider when appropriate. Topics for further study include patient benefits and satisfaction, and further assessment of the social, economic and financial impacts on all parties involved. PMID- 29327348 TI - Respiratory dysfunction progresses with age in Kcna1-null mice, a model of sudden unexpected death in epilepsy. AB - OBJECTIVE: Increased breathing rate, apnea, and respiratory failure are associated with sudden unexpected death in epilepsy (SUDEP). We recently demonstrated the progressive nature of epilepsy and mortality in Kcna1-/- mice, a model of temporal lobe epilepsy and SUDEP. Here we tested the hypothesis that respiratory dysfunction progresses with age in Kcna1-/- mice, thereby increasing risk of respiratory failure and sudden death (SD). METHODS: Respiratory parameters were determined in conscious mice at baseline and following increasing doses of methacholine (MCh) using noninvasive airway mechanics (NAM) systems. Kcna1+/+ , Kcna1+/- , and Kcna1-/- littermates were assessed during 3 age ranges when up to ~30%, ~55%, and ~90% of Kcna1-/- mice have succumbed to SUDEP: postnatal day (P) 32-36, P40-46, and P48-56, respectively. Saturated arterial O2 (SaO2 ) was determined with pulse oximetry. Lung and brain tissues were isolated and Kcna1 gene and protein expression were evaluated by reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) and Western blot techniques. Airway smooth muscle responsiveness was assessed in isolated trachea exposed to MCh. RESULTS: Kcna1-/- mice experienced an increase in basal respiratory drive, chronic oxygen desaturation, frequent apnea-hypopnea (A-H), an atypical breathing sequence of A-H-tachypnea-A-H, increased tidal volume, and hyperventilation induced by MCh. The MCh-provoked hyperventilation was dramatically attenuated with age. Of interest, only Kcna1-/- mice developed seizures following exposure to MCh. Seizures were provoked by lower concentrations of MCh as Kcna1-/- mice approached SD. MCh-induced seizures experienced by a subset of younger Kcna1-/- mice triggered death. Respiratory parameters of these younger Kcna1-/- mice resembled older near-SD Kcna1-/- mice. Kcna1 gene and protein were not expressed in Kcna1+/+ and Kcna1+/- lungs, and MCh-mediated airway smooth muscle contractions exhibited similar half-maximal effective concentration( EC50 ) in isolated Kcna1+/+ and Kcna1-/- trachea. SIGNIFICANCE: The Kcna1-/- model of SUDEP exhibits progressive respiratory dysfunction, which suggests a potential increased susceptibility for respiratory failure during severe seizures that may result in sudden death. PMID- 29327351 TI - Negotiating inter-professional interaction: playing the general practitioner pharmacist game. AB - Despite a mutual interest in optimising the benefits of medication for patients, the general practitioner (GP) and community pharmacist (CP) often work in isolation from one another, both physically and figuratively. Sources of tension include pharmacy's 'shopkeeper' image, traditional medical hierarchies and potential encroachment on professional boundaries. This article examines GP and CP perceptions of their interactions and negotiations and, drawing on the works of Stein and Goffman, identifies a set of 'unwritten' rules, termed the 'GP pharmacist game', which involves the concept of 'face-work'. Qualitative interviews with 20 GPs and 23 CPs located in four geographically and demographically different areas in England were conducted during 2010-11. Key rules of the game include the pharmacist avoiding blaming the GP, using discretion in front of patients, and balancing the necessity and frequency of the communication. This article argues that whilst adhering to the 'GP-pharmacist game' may avoid conflict and 'get the job done', it may also constrain efforts to meet wider health care policy aims of a more collaborative relationship. PMID- 29327352 TI - Ultrasound findings provide clues to investigate founder mutations expressed as runs of homozygosity in chromosomal microarray studies. AB - OBJECTIVES: Chromosomal microarray analysis is effectively applied prenatally to detect copy number changes. Single nucleotide polymorphism (SNP) probes included in the microarray platform can detect regions of excessive homozygosity and identical-by-descent genomic stretches. The utility of the latter as part of prenatal diagnosis is not well established. Recessive founder mutations are well recognized within distinct ethnic groups. Combining these data with prenatal sonography provides accurate focused molecular diagnoses quickly. We aimed to evaluate the application of this approach in expectant families presenting to our unit. METHODS: Three unrelated gravidae presenting with specific fetal sonographic findings: (1) ventriculomegaly with encephalocele; (2) severe polyhydramnion; and (3) enlarged echogenic kidneys, underwent amniocentesis for chromosomal microarray analysis, and genome-wide human SNP array was used to analyze DNA from amniocytes. The Genomic Oligoarray and SNP array evaluation tool v3.0(c) was used to detect recessive loci associated with the reported clinical findings. Candidate genes were further interrogated using the Israeli National Genetic Database (INGD) and specifically searching and identifying a corresponding founder mutation within the defined ethnic group. RESULTS: Three fetuses from 3 distinct nuclear families in which the parents shared a similar ethnicity (either Ashkenazi or Bukharan Jews) albeit no reported consanguinity were assessed. We found no copy number changes; however, by evaluating regions of homozygosity, we were able to reveal relevant candidate gene for the specific phenotype for each fetus. Using the INGD led to targeted testing of a specific homozygous fetal mutation for which parents were found to be carriers. In the fetus with ventriculomegaly with encephalocele c.1167dupA mutation in the FKTN gene, in the fetus with severe polyhydramnion c.167ins6[TTTCCC] mutation in the BSND gene, and in the fetus with enlarged echogenic kidneys, c.3761_3762delCCinsG in the PKHD1 gene were identified. CONCLUSIONS: A tripartite approach integrating sonographic pathology with regions of excessive homozygosity data and INGD-based founder mutation repository yields a comprehensive streamlined approach to provide accurate genetic diagnosis and counselling within the time constraints of an ongoing pregnancy. PMID- 29327353 TI - Increased risk of congestive heart failure in patients with acetaminophen poisoning: A nationwide cohort study. AB - Acetaminophen poisoning increases cytochrome P450 2E1 expression and reactive oxygen species production, which may lead to maladaptive myocardial remodeling and congestive heart failure (CHF). We conducted a nationwide cohort study to investigate the incidence and risk of CHF in patients with acetaminophen poisoning. We identified a cohort of adult patients with newly diagnosed acetaminophen poisoning in the inpatient claims of the Taiwan National Health Insurance Research Database for the 1998-2011 period. A comparison cohort was frequency matched at a 4:1 ratio for sex, age and index year. All patients were followed up until the occurrence of CHF, withdrawal from the National Health Insurance program, or December 31, 2011. Cox proportional hazards models were employed to calculate the risk of CHF in the acetaminophen poisoning cohort compared with the comparison cohort, and the hazard ratios with 95% confidence intervals are presented. A total of 3546 and 14 184 patients with and without acetaminophen poisoning were followed up for a total of 25 856 and 102 119 person years, respectively. The overall incidence of CHF was higher in the acetaminophen poisoning cohort than in the comparison cohort (8.12 vs. 5.19 per 10 000 person years). After adjustment for covariates, the acetaminophen poisoning cohort exhibited a 1.59-fold higher risk of CHF (adjusted hazard ratio = 1.59; 95% confidence interval = 1.43-1.75) than did the comparison cohort. Patients with acetaminophen poisoning exhibited a significantly higher risk of CHF compared with the comparison cohort. Clinicians should follow up heart function in patients with acetaminophen poisoning. PMID- 29327354 TI - A validated liquid chromatography-high resolution-tandem mass spectrometry method for the simultaneous quantitation of tryptophan, kynurenine, kynurenic acid, and quinolinic acid in human plasma. AB - Tryptophan (TRP) catabolism via the kynurenine pathway is considered to represent a major link between inflammation and various diseases, including neurodegenerative disorders, depression, schizophrenia, multiple sclerosis, cardiovascular disease, and cancer. The kynurenine pathway and levels of TRP and its metabolites kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QUIN) are well regulated under physiological conditions but may be altered as part of the activated immune response. A simple, sensitive, and specific liquid chromatography-time of flight mass spectrometry method was developed for determining levels of the four compounds in human plasma samples. The workflow involves protein precipitation with acetonitrile, chromatographic separation on a Phenomenex Luna NH2 column by applying a linear 6 min gradient of 50-5% acetonitrile in aqueous ammonium acetate solution (5 mM, pH 9.5), and mass spectrometric detection with high-resolution tandem mass spectrometry. Charcoal treated plasma served as surrogate matrix for external standard calibration. Stable-isotope-labeled analogues were used as internal standards. The calibration ranges were 0.5-50 MUg/ml for TRP, 20-1000 ng/mL for KYN und QUIN, and 1-50 ng/mL for KYNA. Validation proved fitness of the developed workflow for the intended purpose. The established method was applied to the quantification of the four targets in 100 authentic plasma samples. PMID- 29327355 TI - Non-occupational allergic contact dermatitis caused by long-lasting nail polish kits for home use: 'the tip of the iceberg'. AB - BACKGROUND: Allergic contact dermatitis (ACD) from (meth)acrylates caused by long lasting nail polish (also known as "permanent", "semi-permanent" or "gel nail polish") has been described both in occupational and non-occupational settings. Inexpensive kits for home use have been available for purchase in many stores or through the Internet. OBJECTIVE: To report on several further cases of consumers sensitised to these nail products. METHODS: Patch test results and evaluation of ingredient labelling of products brought in by the patients. RESULTS: Four new cases are presented. Three of the patients reacted to 2-hydroxypropyl methacrylate, 2-hydroxyethyl methacrylate and ethyleneglycol dimethacrylate (EGDMA), and all 4 to 2-hydroxy ethylacrylate. CONCLUSIONS: Acrylates are present in a wide range of products including medical materials. Sensitization from (meth)acrylates caused by a merely aesthetic procedure might significantly impact health by jeopardizing access to several types of medical interventions. Policies should be implemented restricting the use of long-lasting nail polishes to qualified professionals and banning the indiscriminate sale of kits for home use. PMID- 29327357 TI - NIOSH and the use of systematic review methods in Occupational Safety and Health. PMID- 29327356 TI - Gene-Specific Variant Classifier (DPYD-Varifier) to Identify Deleterious Alleles of Dihydropyrimidine Dehydrogenase. AB - Deleterious variants in dihydropyrimidine dehydrogenase (DPD, DPYD gene) can be highly predictive of clinical toxicity to the widely prescribed chemotherapeutic 5-fluorouracil (5-FU). However, there are very limited data pertaining to the functional consequences of the >450 reported no-synonymous DPYD variants. We developed a DPYD-specific variant classifier (DPYD-Varifier) using machine learning and in vitro functional data for 156 missense DPYD variants. The developed model showed 85% accuracy and outperformed other in silico prediction tools. An examination of feature importance within the model provided additional insight into functional aspects of the DPD protein relevant to 5-FU toxicity. In the absence of clinical data for unstudied variants, prediction tools like DPYD Varifier have great potential to individualize medicine and improve the clinical decision-making process. PMID- 29327358 TI - Opioid medication use in patients with gastrointestinal diagnoses vs unexplained gastrointestinal symptoms in the US Veterans Health Administration. AB - BACKGROUND: While opioid prescriptions have increased alarmingly in the United States (US), their use for unexplained chronic gastrointestinal (GI) pain (eg, irritable bowel syndrome) carries an especially high risk for adverse effects and questionable benefit. AIM: To compare opioid use among US veterans with structural GI diagnoses (SGID) and those with unexplained GI symptoms or functional GI diagnoses (FGID), a group for whom opioids have no accepted role. METHODS: Veterans Health Administration (VHA) administrative data from fiscal year 2012 were used to identify veterans with diagnostic codes recorded for SGID and FGID. This cohort study examined VHA pharmacy data to compare groups receiving >= 1 opioid prescription during the year and number of prescriptions filled. Bivariate and multiple logistic regression analyses adjusted for potential confounding factors (demographics, medical diagnoses, social factors) and identified potential mediators (service use, psychiatric comorbidity) of opioid use in these groups. RESULTS: A greater proportion of veterans with FGID received an opioid prescription during fiscal year 2012 (36.0% of 272 431) compared to only 28.9% of 1 223 744 in the SGID group (Relative Risk [RR] = 1.25). In multivariate logistic regression, personality disorders and drug abuse (OR 1.23 for each group), recent homelessness (OR 1.22), psychotropic medication fills (OR 1.55) and emergency department encounters (OR 1.21) were independently associated with opioid prescription use. CONCLUSIONS: Despite the potential for adverse consequences, opioids more often are prescribed for veterans with chronic, unexplained GI symptoms compared to those with structural diagnoses. Psychiatric comorbidities and frequent healthcare encounters mediate some of the opioid use risk. PMID- 29327360 TI - Aboveground herbivory induced jasmonates disproportionately reduce plant reproductive potential by facilitating root nematode infestation. AB - Different plant feeders, including insects and parasitic nematodes, can influence each other by triggering systemic changes in their shared host plants. In most cases, however, the underlying mechanisms are unclear, and the consequences for plant fitness are not well understood. We studied the interaction between leaf feeding Manduca sexta caterpillars and root parasitic nematodes in Nicotiana attenuata. Simulated M. sexta attack increased the abundance of root parasitic nematodes in the field and facilitated Meloidogyne incognita reproduction in the glasshouse. Intact jasmonate biosynthesis was found to be required for both effects. Flower counts revealed that the jasmonate-dependent facilitation of nematode infestation following simulated leaf attack reduces the plant's reproductive potential to a greater degree than would be expected from the additive effects of the individual stresses. This work reveals that jasmonates mediate the interaction between a leaf herbivore and root parasitic nematodes and illustrates how plant-mediated interactions can alter plant's reproductive potential. The selection pressure resulting from the demonstrated fitness effects is likely to influence the evolution of plant defense traits in nature. PMID- 29327361 TI - Myocardial injury in fetal aortic stenosis: Insights from amniotic fluid analysis. AB - OBJECTIVE: Fetal aortic stenosis (AS) imposes pressure load on the developing left ventricle (LV) and leads to derangements in myocardial structure and function via mechanisms that are not well characterized. METHODS: We compared amniotic fluid NT-BNP and troponin levels in fetuses with AS prior to fetal valvuloplasty and controls. We estimated correlations between NT-BNP and fetal echo parameters and identify NT-BNP cutoff associated with biventricular outcome RESULTS: Median NT-BNP level was higher in fetal AS than controls (3858 vs 1737 pg/mL, P < 0.012). By contrast, troponin levels were lower in fetal AS, with troponin > detectable in 0/25 (0%) AS cases compared with 22/85 (26%) controls (P = 0.03). Of 25 fetal AS cases, 12 (48%) had biventricular outcome. Fetuses with NT-BNP < 910 pg/mL were more likely to have biventricular (OR =10) compared with those >=910 pg/mL (P = 0.045). Higher NT-BNP correlated with earlier gestational age and measures of larger left heart size. CONCLUSION: NT-BNP is elevated in fetal AS, suggesting that LV pressure load and increased wall stress lead to maladaptive stretch-related myocardial remodeling. Troponin is normal in mid gestation fetal AS, suggesting that ischemia is not the primary factor in fetal response to LV pressure load. PMID- 29327362 TI - P-wave and interatrial block: New predictor for atrial high rate episodes in patients with cardiac implantable electronic devices. AB - BACKGROUND: The presence of interatrial block (IAB) is associated with the development of atrial fibrillation (AF). The aim of this study was to determine whether P-wave duration and presence of IAB before the implantation of a cardiac implantable electronic device (CIED) are associated with the presence of atrial high rate episodes (AHRE), during long-term follow-up. METHODS: 380 patients (57% men; 75 +/- 10 years) were included. IAB was defined according to the International Consensus Criteria. AHRE was defined as an episode of atrial rate >=225 beats/min with a minimum duration of 5 minutes. RESULTS: Documented paroxysmal AF before the implantation was present in 24% of the patients; 80% had hypertension and 32% structural heart disease. Mean P-wave duration was 123 +/- 23 ms, and 39% of the patients had IAB (32% partial, 7% advanced). After a mean follow-up of 18 +/- 12 months, 33% of the patients presented AHRE. Patients with AHRE had a P-wave duration significantly longer (130 +/- 24 ms vs 119 +/- 21 ms; P < 0.001) and a greater prevalence of IAB (53% vs 32%; P < 0.001). In a multivariate analysis, predictors of AHRE were: IAB (odds ratio [OR] 2.1; 95% confidence interval [CI] [1.3-3.4], P < 0.001) and previous paroxysmal AF (OR 2.6; 95% CI [1.5-4.3], P < 0.001). In patients without previous AF, the presence of IAB was also a significant predictor of AHRE (OR 3.1; 95% CI [1.8-5.5], P < 0.001). CONCLUSIONS: IAB is a strong predictor of AHRE in patients with CIED. This finding is independent of the presence of prior paroxysmal AF. PMID- 29327359 TI - Contact sensitization in dental technicians with occupational contact dermatitis. Data of the Information Network of Departments of Dermatology (IVDK) 2001-2015. AB - BACKGROUND: Dental technicians (DTs) are at increased risk for allergic contact sensitization. OBJECTIVES: To assess the current spectrum of occupational sensitization in DTs with occupational contact dermatitis (OCD). METHODS: A retrospective analysis of Information Network of Departments of Dermatology patch test data from the years 2001-2015 concerning DTs with OCD was performed. RESULTS: Patients of the study group (226 DTs with OCD) were significantly more often diagnosed with allergic contact dermatitis (37.6% versus 18.5%; p = 0.0002) than patients of the control group (124 DTs without OCD). In the study group, positive reactions were most frequently observed to methacrylates and/or acrylates (n = 67). Of these, 61 patients showed positive reactions to at least one of the five most frequent allergens in this group, namely 2-hydroxyethyl methacrylate, 2-hydroxypropyl methacrylate, methyl methacrylate, ethyl methacrylate, and/or ethylene glycol dimethacrylate. In contrast, no positive reactions to diurethane dimethacrylate (DUDMA) occurred. Among allergens of the German Contact Dermatitis Research Group series 'dental metals', positive reactions were less frequent and were mainly to palladium chloride (n = 6). CONCLUSIONS: The present data analysis showed that the sensitization spectrum and spectrum of cross-reactivity are largely unchanged as compared with the 1990s. It can be concluded that test recommendations are still valid and useful, except for the methacrylate DUDMA, which could be omitted. PMID- 29327364 TI - 4-Phenylbutyric acid presents therapeutic effect on osteoarthritis via inhibiting cell apoptosis and inflammatory response induced by endoplasmic reticulum stress. AB - Osteoarthritis (OA) is a common bone and joint disease with a wild range of risk factors, which is associated with endoplasmic reticulum (ER) stress. The aim of our study was to discuss the possible mechanism of ER stress associated with OA in vivo and explore novel therapeutic method against OA. OA-induced damages in cartilage tissues were evaluated by HE, Safranin O/fast green, and TUNEL staining. The inflammatory factors concentration and the expression of FAP, MMP2, MMP9, Bax, Bcl-2, CHOP, and GRP78 were evaluated by ELISA, real-time PCR, and Western blot analyses. As results, 4-phenylbutyric acid (4-PBA)-treated OA cartilage tissues presented alleviated tissue damage with less apoptotic cells and cytokine production in comparison with advanced-OA tissues. Downregulation of Bax/Bcl-2, CHOP, GRP78, inflammatory factors, and reactive oxygen species generation, and the increase of MMP level detected after 4-PBA treatment indicated an inhibitory effect of 4-PBA on cell apoptosis, inflammatory response, and ER stress in OA. In conclusion, we indicate that ER stress causes cell apoptosis and inflammatory response, resulting in the tissue damage within OA. At the same time, 4-PBA exhibited protective effect on cartilage cells against OA through the inhibition of ER stress. PMID- 29327363 TI - Pretreatment with substance P alleviates irritation due to sodium lauryl sulphate exposure by maintaining E-cadherin expression on human keratinocytes. PMID- 29327365 TI - Millimeter spatial resolution in vivo sodium MRI of the human eye at 7 T using a dedicated radiofrequency transceiver array. AB - PURPOSE: The aim of this study was to achieve millimeter spatial resolution sodium in vivo MRI of the human eye at 7 T using a dedicated six-channel transceiver array. We present a detailed description of the radiofrequency coil design, along with electromagnetic field and specific absorption ratio simulations, data validation, and in vivo application. METHODS: Electromagnetic field and specific absorption ratio simulations were performed. Transmit field uniformity was optimized by using a multi-objective genetic algorithm. Transmit field mapping was conducted using a phase-sensitive method. An in vivo feasibility study was carried out with 3-dimensional density-adapted projection reconstruction imaging technique. RESULTS: Measured transmit field distribution agrees well with the one obtained from simulations. The specific absorption ratio simulations confirm that the radiofrequency coil is safe for clinical use. Our radiofrequency coil is light and conforms to an average human head. High spatial resolution (nominal 1.4 and 1.0 mm isotropic) sodium in vivo images of the human eye were acquired within scan times suitable for clinical applications (~ 10 min). CONCLUSIONS: Three most important eye compartments in the context of sodium physiology were clearly delineated in all of the images: the vitreous humor, the aqueous humor, and the lens. Our results provide encouragement for further clinical studies. The implications for research into eye diseases including ocular melanoma, cataract, and glaucoma are discussed. Magn Reson Med 80:672-684, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29327366 TI - Financing elderly people's long-term care needs: Evidence from China. AB - Confronted by accelerated population aging, China is establishing a long-term care (LTC) system. This study discusses challenges and recommendations for financing China's LTC system. On the basis of the data on elderly people's self care ability from the Chinese Longitudinal Healthy Longevity Survey, we calculate the size of the elderly population that need LTC for the period from 2015 to 2030 and analyse the increasing tendency of LTC expenses by considering the impact of price increase. We also analyse the local governments' financial capacity for LTC support by comparing the expense level to the fiscal revenue. The study found that aging will double the LTC expenses by 2030. Therefore, this study suggests the establishment of an LTC insurance system that allocates LTC expenses, which are currently borne by individuals and families, more fairly among the government, individuals, and families. Moreover, with the current LTC reforms, implemented primarily by local governments in China, we believe that the central government should bear some of the fiscal responsibility by conducting fiscal transfers to partially support undeveloped regions that are establishing an LTC system. PMID- 29327367 TI - The free healthcare initiative in Sierra Leone: Evaluating a health system reform, 2010-2015. AB - This article presents the findings of a theory-based evaluation of the Sierra Leone Free Health Care Initiative (FHCI), using mixed methods. Analytical approaches included time-series analysis of national survey data to examine mortality and morbidity trends, as well as modelling of impact using the Lives Saved Tool and expenditure trend analysis. We find that the FHCI responded to a clear need in Sierra Leone, was well designed to bring about needed changes in the health system to deliver services to the target beneficiaries, and did indeed bring funds and momentum to produce important systemic reforms. However, its ambition was also a risk, and weaknesses in implementation have been evident in a number of core areas, such as drugs supply. We conclude that the FHCI was one important factor contributing to improvements in coverage and equity of coverage of essential services for mothers and children. Modelled cost-effectiveness is high-in the region of US$ 420 to US$ 444 per life year saved. The findings suggest that even-or perhaps especially-in a weak health system, a reform-like fee removal, if tackled in a systematic way, can bring about important health system gains that benefit vulnerable groups in particular. PMID- 29327368 TI - Measurement of residual chemical shift anisotropies in compressed polymethylmethacrylate gels. Automatic compensation of gel isotropic shift contribution. AB - Mechanical compression of polymer gels provides a simple way for the measurement of residual chemical shift anisotropies, which then can be employed, on its own, or in combination with residual dipolar couplings, for structural elucidation purposes. Residual chemical shift anisotropies measured using compression devices needed a posteriori correction to account for the increase of the polymer to solvent ratio inside the swollen gel. This correction has been cast before in terms of a single-free parameter which, as shown here, can be simultaneously optimized along with the components of the alignment tensor while still retaining discriminating power of the different relative configurations as illustrated in the stereochemical analysis of alpha-santonin and 10-epi-8-deoxycumambrin B. PMID- 29327369 TI - Overweight and obesity may play a role in the pathogenesis of chronic spontaneous urticaria. AB - BACKGROUND: Chronic spontaneous urticaria (CSU) is one of the commonest diseases in allergological and dermatological practice. It constitutes an interdisciplinary problem, and its pathogenesis is not always easily determined. It has been suggested that metabolic syndrome and hyperlipidaemia are more frequent in patients with CSU, but the influence of overweight and obesity on the development of CSU has not been thoroughly investigated. AIM: To assess the association between body parameters and the development of CSU. METHODS: The study enrolled 85 patients with CSU, who were divided into three subgroups: patients whose only symptoms were weals, patients whose only symptom was angio oedema, and patients with urticaria and accompanying angio-oedema. Mean weight, height, body mass index (BMI), body surface area, disease duration and age of disease onset were recorded RESULTS: There was a statistically significant association between CSU and heavier weight, higher BMI, greater affected body surface area and older age at disease onset. Subjects with higher BMI values had a tendency towards longer disease duration. There were no statistically significant differences between the three subgroups. CONCLUSIONS: Our results suggest that CSU, especially if of long duration, may be associated with overweight and obesity, while increased body mass can result in later onset of urticaria symptoms. Further analyses to confirm the presented results and possible association between obesity and CSU occurrence are needed. PMID- 29327370 TI - Role of immune system in tumor progression and carcinogenesis. AB - Tumor micro-environment has potential to customize the behavior of the immune cell according to their need. In immune-eliminating phase, immune cells eliminate transformed cells but after tumor establishment innate and adaptive immune cells synergistically provide shelter as well as fulfill their requirement that helps in progression. In between eliminating and establishment phase, equilibrium and escaping phase regulate the immune cells response. During immune-escaping, (1) the antigenic response generated is either inadequate, or focused entirely on tolerance, and (2) immune response generated is specific and effective, but the tumor skips immune recognition. In this review, we are discussing the critical role of immune cells and their cytokines before and after the establishment of tumor which might play a critical role during immunotherapy. PMID- 29327371 TI - Variable degrees of ventricular preexcitation during rapid atrial pacing: What is the mechanism? PMID- 29327372 TI - Relative short-term efficacy and acceptability of agomelatine versus vortioxetine in adult patients suffering from major depressive disorder. AB - Agomelatine and vortioxetine are antidepressants with different mechanisms of action compared to other pharmaceutical treatment options. The objective of this present analysis is to determine the relative efficacy and acceptability of agomelatine (25-50 mg) compared to vortioxetine (10-15-20 mg) in adult patients with major depressive disorder. We performed an adjusted indirect comparison using placebo as a common control. The main outcomes were efficacy (response to treatment by Montgomery-Asberg depression rating scale/Hamilton Rating Scale for Depression) and acceptability (withdrawal rate for any reason or due to adverse events). 10 agomelatine and 11 vortioxetine studies were included in the analysis. For efficacy, no difference was shown between agomelatine and vortioxetine (E[95% CI] = -0.03 [-0.12;0.05]). For acceptability, no significant difference was found between both antidepressants. These findings substantiate current understanding that most antidepressants are of similar average efficacy and tolerability. Such equivalent therapeutic benefit of both compounds, measured by a quantitative clinical research approach, has to be discussed with the knowledge of a qualitative estimation in routine practice. PMID- 29327373 TI - The UK's legal position on Animal Sentience. PMID- 29327374 TI - Dynamic coronary MR angiography in a pig model with hyperpolarized water. AB - PURPOSE: To investigate dynamic coronary MR angiography using hyperpolarized water as a positive contrast agent. Hyperpolarization can increase the signal by several orders of magnitude, and has recently been translated to human cardiac application. The aim was to achieve large 1 H signal enhancement to allow high resolution imaging of the coronary arteries. METHODS: Protons in D2 O were hyperpolarized by dissolution dynamic nuclear polarization. A total of 18 mL of hyperpolarized water was injected into the coronary arteries of healthy pigs (N = 9; 3 injections in 3 animals). The MRI images were acquired with a gradient-echo sequence in an oblique slab covering the main left coronary arteries with 0.55 mm in-plane resolution. The acquisition time was 870 ms per frame. RESULTS: A more than 200-fold signal enhancement compared with thermally polarized water at 3 T was obtained. Coronary angiographic images with a signal-to-noise ratio from the left main stem of 269 +/- 169 and coronary sharpness from the proximal left anterior descending coronary artery of 0.31 +/- 0.086 mm-1 were obtained. Dynamic images were acquired over a 10 s time window. CONCLUSION: Hyperpolarized water MR angiography of the coronary arteries in a large animal model with high signal-to noise ratio and high spatial and temporal resolution was obtained. Magn Reson Med 80:1165-1169, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29327375 TI - Impact of HIV/aids epidemic on human capital development in West Africa. AB - West Africa occupies the third position with respect to the burden of human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) globally, after Southern and East Africa. About 5 million adults and children are infected with the disease in the subregion, while HIV prevalence in the general population hovers around 2% and 5%. This paper attempts to investigate the impact of HIV/AIDS epidemic on human capital development in 11 West African countries over the period 1990 to 2011. The study used a dynamic panel data modeling approach, using first difference, difference generalized methods of moment, and system generalized methods of moment estimating techniques. Four measures of HIV/AIDS and 2 human capital measures were used in the study. The findings revealed that HIV/AIDS pandemic had negative and significant impact on human capital in West Africa. However, the statistical significance was more pronounced on life expectancy (a measure of human capital), while the negative impact on school enrolment (another human capital measure) was not significant. It is therefore recommended that the spread of HIV/AIDS disease in West Africa should be effectively controlled, while the number of infected persons undergoing antiretroviral therapy in the subregion should be increased to a near 100% coverage. PMID- 29327376 TI - Urinary orosomucoid is associated with progressive chronic kidney disease stage in patients with sickle cell anemia. PMID- 29327378 TI - Comparing impact on the family and insurance coverage in children with cerebral palsy and children with another special healthcare need. AB - BACKGROUND: Families and caregivers of children with special healthcare needs (CSHCN) often experience financial difficulties, have unmet physical and mental health needs, and are at increased risk of marital problems due to the stress caused by carrying for their child. Within the larger population of CHSCN, young people with cerebral palsy (CP) have more unmet needs due to the complexity and potential severity of the disability. The purpose of this study was to identify factors associated with differences in insurance coverage and impact on the family of children with CP and other CHSCN. METHODS: The data were taken from the National Survey of Children with Special Health Care Needs, which was designed to examine state- and national-level estimates of CSHCN. Three variables examined differences in insurance coverage between those children diagnosed with CP versus all other CSHCN: insurance coverage for the previous year, current insurance coverage, and adequacy of insurance coverage. Four variables representing different indicators of family impact were used to assess differences between children with CP versus all other CSHCN: out-of-pocket expenses for healthcare, family financial burden, hours per week that family members spent caring for the child, and impact on family work life. RESULTS: The results of this study showed significant differences between households with a child with CP and a child with another health special need in terms of insurance coverage, indicating a tendency of children with CP to be insured the entire year. As for the impact on the family in households with children with CP versus other CSHCN, there were significant differences in all four variables that were analysed. CONCLUSIONS: There is limited evidence highlighting differences between the impact of caring for a child with CP and caring for other CSHCN. Caring for a child with CP has a significant impact on the family, despite insurance coverage. PMID- 29327379 TI - Influence of varying stem and metaphyseal sleeve size on the primary stability of cementless revision tibial trays used to reconstruct AORI IIA defects. A simulation study. AB - Traditionally, diaphyseal stems have been utilized to augment the stability of revision total knee replacement (rTKR) implants. More recently metaphyseal augments, such as sleeves, have been introduced to further augment component fixation. The effect of augments such as stems and sleeves have on the primary stability of a rTKR implant is poorly understood, however it has important implications on the complexity, costs and survivorship of the procedure. Finite element analysis was used to investigate the primary stability and strain distribution of various size stems and sleeves used in conjunction with a cementless revision tibial tray. The model was built from computer tomography images of a single healthy tibia obtained from an 81-year-old patient to which an Anderson Orthopaedic Research Institute (AORI) IIA defect was virtually added. The influences of varying body mass index (BMI) and bone modulus were also investigated. Stemless sleeves were found to provided adequate primary implant stability (average implant micro-motion <50 MUm) for the studied defect. Addition of a stem did not enhance the primary stability. Furthermore, this study found that varying BMI and bone modulus had a considerable effect on strain distribution but negligible effect on micro-motion in the sleeve area. In conclusion, the addition of diaphyseal stem to a metaphyseal sleeve had little benefit in enhancing the primary stability of tibial trays augmented when simulating reconstructions of AORI IIA tibial defects. Additional studies are required to determine the relative benefit of the diaphyseal stem when using metaphyseal sleeves defects with more extensive bone loss. (c) 2018 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 36:1876-1886, 2018. PMID- 29327377 TI - Sezary syndrome managed with histone deacetylase inhibitor followed by anti-CCR4 monoclonal antibody. AB - A 70-year-old man presented to our clinic with a 10-year history of recurrent pruritic erythema and plaques on his trunk and limbs. Based on the pathological findings and monoclonal rearrangement of the T-cell receptor (TCR)-Cbeta1 gene, mycosis fungoides (T2N0M0B0 stage IB) was diagnosed. Despite combination therapy including histone deacetylase inhibitor (vorinostat), the symptoms slowly evolved into Sezary syndrome (SS; T4N1M0B2) over 4 years, with dense infiltrates due to atypical lymphocytes expressing CCR4 developing in the entire dermis. Anti-CCR4 monoclonal antibody (mogamulizumab) treatment was started. After seven courses, the CCR4-positive atypical lymphocytes decreased in the dermis to levels below those seen at the outset of treatment. To our knowledge, there is no previous report of a case of SS managed with vorinostat followed by mogamulizumab demonstrating such a remarkable change in the pathological state following treatment. PMID- 29327380 TI - Effects of deficiency and surplus dietary threonine on reproductive performance of primiparous pregnant gilts. AB - Dietary threonine imbalance is known to impair reproductive performances of gestating sows, but the underlying mechanisms are largely unknown. In this study, effects of deficiency and surplus dietary threonine during gestation on reproductive performance, serum metabolites and hormones concentration, and colostral nutrient and immunoglobulin contents of primiparous sows were investigated. Ninety primiparous pregnant gilts were assigned to one of the three dietary treatments with different standardized ileal digestible threonine/lysine ratios at 0.59, 0.72 and 0.85, which represented deficient (DT), adequate (AT) and surplus (ST) dietary threonine concentration respectively. Maternal body weight gain from day 80-110 of gestation was highest (p < .05) for gilts fed AT than for gilts fed DT or ST. On days 30 and 110, serum threonine concentration increases in a dose-dependent manner with the increasing of dietary threonine concentration in (p < .01), serum urea nitrogen concentration was lower (p < .01) in gilts fed AT than DT or ST, and serum insulin-like growth factor-I (IGF-I) was lowest (p < .05) for gilts fed DT. On day 110, gilts fed AT had lower serum progesterone concentration but higher concentrations of serum prolactin (p < .05) compared to DT and ST. Concentration of colostral immunoglobulin A and G from gilts fed DT was lower (p < .05) compared with gilts fed AT or ST. In conclusion, gilts with the adequate threonine intake were more able to conserve dietary amino acids to support foetal and maternal tissue gain. Deficient or ST threonine intake may induce a delay in changes in progesterone and prolactin concentrations during the prepartum period impeding the transition from pregnancy to lactation. PMID- 29327381 TI - Oxidative stress impairs myocyte autophagy, resulting in myocyte hypertrophy. AB - NEW FINDINGS: What is the central question of this study? Does oxidative stress induce impairment of autophagy that results in myocyte hypertrophy early after pressure overload? What is the main finding and its importance? In cultured myocytes, hydrogen peroxide decreased autophagy and increased hypertrophy, and inhibition of autophagy enhanced myocyte hypertrophy. In rats with early myocardial hypertrophy after pressure overload, myocyte autophagy was progressively decreased. The antioxidant N-acetyl-cysteine or the superoxide dismutase mimic tempol prevented the decrease of myocyte autophagy and attenuated myocyte hypertrophy early after pressure overload. These findings suggest that oxidative stress impairs myocyte autophagy that results in myocyte hypertrophy. ABSTRACT: Insufficient or excessive myocyte autophagy is associated with left ventricular (LV) hypertrophy. Reactive oxygen species mediate myocyte hypertrophy in vitro and pressure overload-induced LV hypertrophy in vivo. In the present study, we tested the hypothesis that oxidative stress induces an impairment of autophagy that results in myocyte hypertrophy. H9C2 cardiomyocytes pretreated with the autophagy inhibitor 3-methyladenine were exposed to 10 and 50 MUm hydrogen peroxide (H2 O2 ) for 48 h. Male Sprague-Dawley rats underwent abdominal aortic constriction (AAC) or sham operation. The animals were killed 24, 48 or 72 h after surgery. In a separate group, the AAC and sham-operated rats randomly received the antioxidant N-acetyl-cysteine or the superoxide dismutase mimic tempol for 72 h. In H9C2 cardiomyocytes, H2 O2 decreased the ratio of microtubule associated protein light chain 3 (LC3) II to LC3 I and increased P62 and phosphorylated ERK (p-ERK) proteins and myocyte surface area. 3-Methyladenine further increased H2 O2 -induced p-ERK expression. In rats after AAC, the heart to body weight ratio was progressively increased, the LC3 II/I ratio was progressively decreased, p62 and p-ERK expression was increased, and expression of Beclin1, Atg5 and Atg12 was decreased. N-Acetyl-cysteine or tempol prevented the decreases in the LC3 II/I ratio and Beclin1 and Atg5 expression and attenuated the increases in LV wall thickness, myocyte diameter and brain natriuretic peptide expression in AAC rats. In conclusion, oxidative stress decreases Beclin1 and Atg5 expression that results in impairment of autophagy, leading to myocyte hypertrophy. These findings suggest that antioxidants or restoration of autophagy might be of value in the prevention of early myocardial hypertrophy after pressure overload. PMID- 29327382 TI - Retrospective analysis of forward and reverse ABO typing discrepancies among patients and blood donors in a tertiary care hospital. AB - OBJECTIVE: The aim of our study was to determine the incidence and causes of ABO typing discrepancies among patients and blood donors at our centre. BACKGROUND: An accurate interpretation of the ABO blood group of an individual is of utmost importance to ensure patient safety and good transfusion practices. METHODS: A retrospective observational study was carried out in the Department of Transfusion Medicine in our hospital from March 2013 to December 2015. Records of all patient and blood donor samples were retrieved and analysed for ABO typing discrepancies. RESULTS: In total, 135 853 patient and 62 080 donor samples were analysed for ABO typing discrepancies. The incidence among patients and blood donors was found to be 0.1% (138/135853) and 0.02% (14/62080), respectively. The mean age for patients and blood donors was 48.4 and 29.2 years, respectively. The most common cause of ABO typing discrepancies was due to cold autoantibodies among the patients (50.7%) and blood donors (57%) causing discrepant results in reverse typing. The various other causes of reverse typing discrepancies among patients were weak/missing antibody (25.4%), cold-reacting alloantibody (4.3%), warm autoantibody (2.2%), anti-A1 antibody (2.2%), Bombay phenotype (1.5%), transplantation (0.7%) and rouleaux (0.7%), whereas in blood donors, the causes were cold-reacting antibody (7%) and weak antibody (7%). The major cause of forward typing discrepancies among patients (12.3%) and blood donors (29%) was ABO subgroups. CONCLUSION: The resolution of ABO typing discrepancy is essential to minimise the chance of transfusion of ABO-incompatible blood. PMID- 29327383 TI - Large-Scale Noniridescent Structural Color Printing Enabled by Infiltration Driven Nonequilibrium Colloidal Assembly. AB - Structural colors originating from interaction of light with intricately arranged micro-/nanostructures have stimulated considerable interest because of their inherent photostability and energy efficiency. In particular, noniridescent structural color with wide viewing angle has been receiving increasing attention recently. However, no method is yet available for rapid and large-scale fabrication of full-spectrum structural color patterns with wide viewing angles. Here, infiltration-driven nonequilibrium assembly of colloidal particles on liquid-permeable and particle-excluding substrates is demonstrated to direct the particles to form amorphous colloidal arrays (ACAs) within milliseconds. The infiltration-assisted (IFAST) colloidal assembly opens new possibilities for rapid manufacture of noniridescent structural colors of ACAs and straightforward structural color mixing. Full-spectrum noniridescent structural colors are successfully produced by mixing primary structural colors of red, blue, and yellow using a commercial office inkjet printer. Rapid fabrication of large-scale structural color patterns with sophisticated color combination/layout by IFAST printing is realized. The IFAST technology is versatile for developing structural color patterns with wide viewing angles, as colloidal particles, inks, and substrates are flexibly designable for diverse applications. PMID- 29327384 TI - Children's Acquisition of the English Past-Tense: Evidence for a Single-Route Account From Novel Verb Production Data. AB - This study adjudicates between two opposing accounts of morphological productivity, using English past-tense as its test case. The single-route model (e.g., Bybee & Moder, ) posits that both regular and irregular past-tense forms are generated by analogy across stored exemplars in associative memory. In contrast, the dual-route model (e.g., Prasada & Pinker, ) posits that regular inflection requires use of a formal "add -ed" rule that does not require analogy across regular past-tense forms. Children (aged 3-4; 5-6; 6-7; 9-10) saw animations of an animal performing a novel action described with a novel verb (e.g., gezz; chake). Past-tense forms of novel verbs were elicited by prompting the child to describe what the animal "did yesterday." Collapsing across age group (since no interaction was observed), the likelihood of a verb being produced in regular past-tense form (e.g., gezzed; chaked) was positively associated with the verb's similarity to existing regular verbs, consistent with the single-route model only. Results indicate that children's acquisition of the English past-tense is best explained by a single-route analogical mechanism that does not incorporate a role for formal rules. PMID- 29327385 TI - Ultrathin Semiconductor Superabsorbers from the Visible to the Near-Infrared. AB - The design of ultrathin semiconducting materials that achieve broadband absorption is a long-sought-after goal of crucial importance for optoelectronic applications. To date, attempts to tackle this problem consisted either of the use of strong-but narrowband-or broader-but moderate-light-trapping mechanisms. Here, a strategy that achieves broadband optimal absorption in arbitrarily thin semiconductor materials for all energies above their bandgap is presented. This stems from the strong interplay between Brewster modes, sustained by judiciously nanostructured thin semiconductors on metal films, and photonic crystal modes. Broadband near-unity absorption in Ge ultrathin films is demonstrated, which extends from the visible to the Ge bandgap in the near-infrared and is robust against angle of incidence variation. The strategy follows an easy and scalable fabrication route enabled by soft nanoimprinting lithography, a technique that allows seamless integration in many optoelectronic fabrication procedures. PMID- 29327386 TI - Self-Healing of a Confined Phase Change Memory Device with a Metallic Surfactant Layer. AB - Understanding and possibly recovering from the failure mechanisms of phase change memories (PCMs) are critical to improving their cycle life. Extensive electrical testing and postfailure electron microscopy analysis have shown that stuck-set failure can be recovered. Here, self-healing of novel confined PCM devices is directly shown by controlling the electromigration of the phase change material at the nanoscale. In contrast to the current mushroom PCM, the confined PCM has a metallic surfactant layer, which enables effective Joule heating to control the phase change material even in the presence of a large void. In situ transmission electron microscope movies show that the voltage polarity controls the direction of electromigration of the phase change material, which can be used to fill nanoscale voids that form during programing. Surprisingly, a single voltage pulse can induce dramatic migration of antimony (Sb) due to high current density in the PCM device. Based on the finding, self-healing of a large void inside a confined PCM device with a metallic liner is demonstrated for the first time. PMID- 29327388 TI - Lithiophilic Cu-CuO-Ni Hybrid Structure: Advanced Current Collectors Toward Stable Lithium Metal Anodes. AB - Metallic lithium (Li) is a promising anode material for next-generation rechargeable batteries. However, the dendrite growth of Li and repeated formation of solid electrolyte interface during Li plating and stripping result in low Coulombic efficiency, internal short circuits, and capacity decay, hampering its practical application. In the development of stable Li metal anode, the current collector is recognized as a critical component to regulate Li plating. In this work, a lithiophilic Cu-CuO-Ni hybrid structure is synthesized as a current collector for Li metal anodes. The low overpotential of CuO for Li nucleation and the uniform Li+ ion flux induced by the formation of Cu nanowire arrays enable effective suppression of the growth of Li dendrites. Moreover, the surface Cu layer can act as a protective layer to enhance structural durability of the hybrid structure in long-term running. As a result, the Cu-CuO-Ni hybrid structure achieves a Coulombic efficiency above 95% for more than 250 cycles at a current density of 1 mA cm-2 and 580 h (290 cycles) stable repeated Li plating and stripping in a symmetric cell. PMID- 29327389 TI - Multivariate analysis of variations in intrinsic foot musculature among hominoids. AB - Comparative analysis of the foot muscle architecture among extant great apes is important for understanding the evolution of the human foot and, hence, human habitual bipedal walking. However, to our knowledge, there is no previous report of a quantitative comparison of hominoid intrinsic foot muscle dimensions. In the present study, we quantitatively compared muscle dimensions of the hominoid foot by means of multivariate analysis. The foot muscle mass and physiological cross sectional area (PCSA) of five chimpanzees, one bonobo, two gorillas, and six orangutans were obtained by our own dissections, and those of humans were taken from published accounts. The muscle mass and PCSA were respectively divided by the total mass and total PCSA of the intrinsic muscles of the entire foot for normalization. Variations in muscle architecture among human and extant great apes were quantified based on principal component analysis. Our results demonstrated that the muscle architecture of the orangutan was the most distinctive, having a larger first dorsal interosseous muscle and smaller abductor hallucis brevis muscle. On the other hand, the gorilla was found to be unique in having a larger abductor digiti minimi muscle. Humans were distinguished from extant great apes by a larger quadratus plantae muscle. The chimpanzee and the bonobo appeared to have very similar muscle architecture, with an intermediate position between the human and the orangutan. These differences (or similarities) in architecture of the intrinsic foot muscles among humans and great apes correspond well to the differences in phylogeny, positional behavior, and locomotion. PMID- 29327390 TI - From Intramolecular (Circular) in an Isolated Molecule to Intermolecular Hole Delocalization in a Two-Dimensional Solid-State Assembly: The Case of Pillarene. AB - To achieve long-range charge transport/separation and, in turn, bolster the efficiency of modern photovoltaic devices, new molecular scaffolds are needed that can self-assemble in two-dimensional (2D) arrays while maintaining both intra- and intermolecular electronic coupling. In an isolated molecule of pillarene, a single hole delocalizes intramolecularly via hopping amongst the circularly arrayed hydroquinone ether rings. The crystallization of pillarene cation radical produces a 2D self-assembly with three intermolecular dimeric (sandwich-like) contacts. Surprisingly, each pillarene in the crystal lattice bears a fractional formal charge of +1.5. This unusual stoichiometry of oxidized pillarene in crystals arises from effective charge distribution within the 2D array via an interplay of intra- and intermolecular electronic couplings. This important finding is expected to help advance the rational design of efficient solid-state materials for long-range charge transfer. PMID- 29327387 TI - Student survey trends in reported alcohol use and influencing factors in Australia. AB - INTRODUCTION AND AIMS: There is a need to explain reported trends of reduced alcohol and drug (substance) use in school-aged children in Australia. This study used student survey data collected in the states of Victoria, Western Australia and Queensland to examine trends in substance use and associated influencing factors. DESIGN AND METHODS: Youth self-reports were examined from 11 cross sectional surveys completed by 41 328 adolescents (average age 13.5 years, 52.5% female) across 109 Australian communities between 1999 and 2015. Multi-level modelling was used to identify trends in adolescent reports of lifetime alcohol, tobacco and cannabis use, adjusted for age, gender, social disadvantage and minority status. Trends in influencing factors were also examined that included: individual attitudes, and family, school and community environments. Multivariate analyses estimated the main contributors to alcohol use trends. RESULTS: Alcohol, tobacco and cannabis use all fell significantly from 1999 to 2015. Higher levels of use were observed in Victoria compared to Western Australia or Queensland. Multivariate analyses identified reductions in favourable parent attitudes and lower availability of substances as direct contributors to reducing alcohol use trends. Indicators of school and family adjustment did not show similar trend reductions. DISCUSSION AND CONCLUSIONS: Reductions in adolescent alcohol, tobacco and cannabis use from 1999 to 2015 were associated with similar reductions in parent favourable attitudes and availability of substances. It is plausible that a reduced tendency for parents and other adults to supply adolescent alcohol are implicated in the reductions in adolescent alcohol use observed across Australia. PMID- 29327391 TI - Molecular phenotype of SLC4A11 missense mutants: Setting the stage for personalized medicine in corneal dystrophies. AB - SLC4A11 mutations cause cases of congenital hereditary endothelial dystrophy (CHED), Harboyan syndrome (HS), and Fuchs endothelial corneal dystrophy (FECD). Defective water reabsorption from corneal stroma by corneal endothelial cells (CECs) leads to these corneal dystrophies. SLC4A11, in the CEC basolateral membrane, facilitates transmembrane movement of H2 O, NH3 , and H+ -equivalents. Some SLC4A11 disease mutants have impaired folding, leading to a failure to move to the cell surface, which in some cases can be corrected by the drug, glafenine. To identify SLC4A11 mutants that are targets for folding-correction therapy, we examined 54 SLC4A11 missense mutants. Cell-surface trafficking was assessed on immunoblots, by the level of mature, high molecular weight, cell surface associated form, and using a bioluminescence resonance energy transfer assay. Low level of cell surface trafficking was found in four out of 18 (20%) of FECD mutants, 19/ out of 31 (61%) of CHED mutants, and three out of five (60%) of HS mutants. Amongst ER-retained mutants, 16 showed increased plasma membrane trafficking when grown at 30 degrees C, suggesting that their defect has potential for rescue. CHED-causing point mutations mostly resulted in folding defects, whereas the majority of FECD missense mutations did not affect trafficking, implying functional impairment. We identified mutations that make patients candidates for folding correction of their corneal dystrophy. PMID- 29327392 TI - Differences in white matter structure and cortical thickness between patients with traumatic and idiopathic chronic neck pain: Associations with cognition and pain modulation? AB - Brain alterations are hypothesized to be present in patients with chronic whiplash-associated disorders (CWAD). The aim of this case-control study was to examine alterations in cortical thickness and white matter (WM) structure, and the presence of brain microhemorrhages in a patient group encountering chronic neck pain of traumatic origin (i.e., CWAD) when compared with a patient group characterized by nontraumatic chronic neck pain [i.e., chronic idiopathic neck pain (CINP)], and healthy controls. Furthermore, we aimed to investigate associations between brain structure on one hand and cognitive performance and central sensitization (CS) on the other hand. T1-weighted, diffusion-weighted and T2*-weighted magnetic resonance images of the brain were acquired in 105 women (31 controls, 37 CINP, 37 CWAD) to investigate regional cortical thickness, WM structure, and microhemorrhages, respectively. Next, cognitive performance, and CS encompassing distant hyperalgesia and conditioned pain modulation (CPM) efficacy were examined. Cortical thinning in the left precuneus was revealed in CWAD compared with CINP patients. Also, decreased fractional anisotropy, together with increased values of mean diffusivity and radial diffusivity could be observed in the left cingulum hippocampus and tapetum in CWAD compared with CINP, and in the left tapetum in CWAD patients compared with controls. Moreover, the extent of WM structural deficits in the left tapetum coincided with decreased CPM efficacy in the CWAD group. This yields evidence for associations between decreased endogenous pain inhibition, and the degree of regional WM deficits in CWAD. Our results emphasize the role of structural brain alterations in women with CWAD compared with CINP. PMID- 29327393 TI - Pulmonary hypertension in interstitial lung disease: Limitations of echocardiography compared to cardiac catheterization. AB - BACKGROUND AND OBJECTIVE: In interstitial lung disease (ILD), pulmonary hypertension (PH) is a major adverse prognostic determinant. Transthoracic echocardiography (TTE) is the most widely used tool when screening for PH, although discordance between TTE and right heart catheter (RHC) measured pulmonary haemodynamics is increasingly recognized. We evaluated the predictive utility of the updated European Society of Cardiology/European Respiratory Society (ESC/ERS) TTE screening recommendations against RHC testing in a large, well-characterized ILD cohort. METHODS: Two hundred and sixty-five consecutive patients with ILD and suspected PH underwent comprehensive assessment, including RHC, between 2006 and 2012. ESC/ERS recommended tricuspid regurgitation (TR) velocity thresholds for assigning high (>3.4 m/s), intermediate (2.9-3.4 m/s) and low (<2.8 m/s) probabilities of PH were evaluated against RHC testing. RESULTS: RHC testing confirmed PH in 86% of subjects with a peak TR velocity >3.4 m/s, and excluded PH in 60% of ILD subjects with a TR velocity <2.8 m/s. Thus, the ESC/ERS guidelines misclassified 40% of subjects as 'low probability' of PH, when PH was confirmed on subsequent RHC. Evaluating alternative TR velocity thresholds for assigning a low probability of PH did not significantly improve the ability of TR velocity to exclude a diagnosis of PH. CONCLUSION: In patients with ILD and suspected PH, currently recommended ESC/ERS TR velocity screening thresholds were associated with a high positive predictive value (86%) for confirming PH, but were of limited value in excluding PH, with 40% of patients misclassified as low probability when PH was confirmed at subsequent RHC. PMID- 29327394 TI - Photothermal-Responsive Conjugated Polymer Nanoparticles for Remote Control of Gene Expression in Living Cells. AB - Remote control and noninvasive manipulation of cellular bioprocess has received intensive attention as a powerful technology to control cell functions. Here, a strategy is developed to remotely control intracellular gene expression with high spatial and temporal resolutions by using photothermal-responsive conjugated polymer nanoparticles (CPNs) as the transducer under near-infrared light irradiation. After being modified with positive charged peptide, the CPNs with superior photothermal conversion capacity could effectively coat on the surface of living cells and generate localized heat to trigger target gene expression. The heat-inducible heat shock protein-70 promoter starts transcription of downstream EGFP gene in response to heat shock, thus producing green fluorescent protein in the living cells. The combination of heat-inducible gene promoter and photothermal-responsive CPNs provides a method for the development of thermogenetics. PMID- 29327395 TI - Effects of traditional Chinese medicine formula on ruminal fermentation, enzyme activities and nutrient digestibility of beef cattle. AB - This study was conducted to evaluate effects of traditional Chinese medicine formula (TCMF) combined with several herbs on ruminal fermentation, enzyme activities and nutrient digestibility. Twenty finishing bulls were assigned to control or different TCMFs (Yufeisan-1, -2, -3; 2.5% dry matter (DM) in concentrate). Results showed that DM intake was higher (P < 0.05) in the Yufeisan 3 group than others. Compared to control, apparent digestibility of crude protein and neutral detergent fiber were increased (P < 0.05) by Yufeisan-3. No changes were observed in ruminal pH, concentrations of ammonia-N, microbial crude protein and total volatile fatty acid, whereas ratio of acetate to propionate was lower (P < 0.05) and propionate proportion tended to be higher (P < 0.1) in three TCMFs than control. Ruminal xylanase (P = 0.061) and carboxymethylcellulase (P < 0.05) activities were higher in Yufeisan-3 than control. No changes were observed in abundance of total bacteria, fungi and protozoa, whereas Fibrobacter succinogenes (P = 0.062) and Ruminococcus flavefaciens (P < 0.05) were increased and total methanogens was reduced (P = 0.069) by Yufeisan-3 compared to control. Yufeisan-3 improved nutrient digestibility and ruminal enzyme activity, and modified fermentation and microbial community, maybe due to the presence of Herba agastaches, Cortex phellodendri and Gypsum fibrosum. PMID- 29327396 TI - Configurational Isomerism in Polyoxovanadates. AB - A water-soluble derivative of the polyoxovanadate {V15 E6 O42 } (E=semimetal) archetype enables the study of cluster shell rearrangements driven by supramolecular interactions. A reaction unique to E=Sb, induced exclusively by ligand metathesis in peripheral [Ni(ethylenediamine)3 ]2+ counterions, results in the formation of the metastable alpha1 * configurational isomer of the {V14 Sb8 O42 } cluster type. Contrary to all other polyoxovanadate shell architectures, this isomer comprises an inward-oriented vanadyl group and is ca. 50 and 12 kJ mol-1 higher in energy than the previously isolated alpha and beta isomers, respectively. We discuss this unexpected reaction in light of supramolecular Sb O???V and Sb-O???Sb contacts manifested in {V14 Sb8 O42 }2 dimers detected in the solid state. ESI MS experiments confirm the stability of these dimers also in solution and in the gas phase. DFT calculations indicate that other, as of yet elusive isomers of {V14 Sb8 }, might be accessible as well. PMID- 29327398 TI - Ways of knowing on the Internet: A qualitative review of cancer websites from a critical nursing perspective. AB - People diagnosed with cancer typically want information from their doctor or nurse. However, many individuals now turn to the Internet to tackle unmet information needs and to complement healthcare professional information. The purpose of this study was to qualitatively explore the content of commonly searched cancer websites from a critical nursing perspective, as this information is accessible, and allows patients to address their information needs in ways that healthcare professionals cannot. This qualitative examination of websites is informed by Carper's fundamental patterns of knowing and complemented with the critical view to technology espoused by the philosophy of technology. We conducted a review of 20 websites using a two-step interpretive descriptive approach and thematic analysis. We identified the dominant discourse to be focused on empirical information on treatment, prognosis, and cure, and a paucity of sociopolitical, ethical, personal, and esthetic information. In place of holistic, nuanced, and accurate knowledge nurses may provide, patients find predominantly empirical and biomedical information online. Discussion explores and critiques online cancer content, gaps in information, and the importance of information diversity. Implications focus on needed discourse around pervasive technologies and the nursing role in assessing and directing patients to holistic information. PMID- 29327397 TI - Translating international HIV treatment guidelines into local priorities in Indonesia. AB - OBJECTIVE: International guidelines recommend countries to expand antiretroviral therapy (ART) to all HIV-infected individuals and establish local-level priorities in relation to other treatment, prevention and mitigation interventions through fair processes. However, no practical guidance is provided for such priority-setting processes. Evidence-informed deliberative processes (EDPs) fill this gap and combine stakeholder deliberation to incorporate relevant social values with rational decision-making informed by evidence on these values. This study reports on the first-time implementation and evaluation of an EDP in HIV control, organised to support the AIDS Commission in West Java province, Indonesia, in the development of its strategic plan for 2014-2018. METHODS: Under the responsibility of the provincial AIDS Commission, an EDP was implemented to select priority interventions using six steps: (i) situational analysis; (ii) formation of a multistakeholder Consultation Panel; (iii) selection of criteria; (iv) identification and assessment of interventions' performance; (v) deliberation; and (vi) selection of funding and implementing institutions. An independent researcher conducted in-depth interviews (n = 21) with panel members to evaluate the process. RESULTS: The Consultation Panel included 23 stakeholders. They identified 50 interventions and these were evaluated against four criteria: impact on the epidemic, stigma reduction, cost-effectiveness and universal coverage. After a deliberative discussion, the Consultation Panel prioritised a combination of several treatment, prevention and mitigation interventions. CONCLUSION: The EDP improved both stakeholder involvement and the evidence base for the strategic planning process. EDPs fill an important gap which international guidelines and current tools for strategic planning in HIV control leave unaddressed. PMID- 29327399 TI - Poly(Lactide-Co-Glycolide)-Monomethoxy-Poly-(Polyethylene Glycol) Nanoparticles Loaded with Melatonin Protect Adipose-Derived Stem Cells Transplanted in Infarcted Heart Tissue. AB - Stem cell transplantation is a promising therapeutic strategy for myocardial infarction. However, transplanted cells face low survival rates due to oxidative stress and the inflammatory microenvironment in ischemic heart tissue. Melatonin has been used as a powerful endogenous antioxidant to protect cells from oxidative injury. However, melatonin cannot play a long-lasting effect against the hostile microenvironment. Nano drug delivery carriers have the ability to protect the loaded drug from degradation in physiological environments in a controlled manner, which results in longer effects and decreased side effects. Therefore, we constructed poly(lactide-co-glycolide)-monomethoxy-poly (polyethylene glycol) (PLGA-mPEG) nanoparticles to encapsulate melatonin. We tested whether the protective effect of melatonin encapsulated by PLGA-mPEG nanoparticles (melatonin nanoparticles [Mel-NPs]) on adipose-derived mesenchymal stem cells (ADSCs) was enhanced compared to that of free melatonin both in vitro and in vivo. In the in vitro study, we found that Mel-NPs reduced formation of the p53- cyclophilin D complex, prevented mitochondrial permeability transition pores from opening, and rescued ADSCs from hypoxia/reoxygenation injury. Moreover, Mel-NPs can achieve higher ADSC survival rates than free melatonin in rat myocardial infarction areas, and the therapeutic effects of ADSCs pretreated with Mel-NPs were more apparent. Hence, the combination of Mel-NPs and stem cell transplantation may be a promising strategy for myocardial infarction therapy. Stem Cells 2018;36:540-550. PMID- 29327401 TI - Daclatasvir and reduced-dose sofosbuvir: an effective and pangenotypic treatment for hepatitis C in patients with eGFR <30 ml/min. AB - BACKGROUND & AIMS: Sofosbuvir is a key agent for HCV treatment. It is not recommended for patients with chronic kidney disease (CKD) and estimated glomerular filtration rate (eGFR) <30 mL/min. We report real-life experience of treating a cohort of CKD patients with eGFR <30 mL/min using daclatasvir and half daily dose of sofosbuvir. METHODS: Adults patients who (i) had eGFR<30 ml/min and detectable HCV RNA and (ii) were treated with interferon and ribavirin free, DAA based regimens were included. All patients were treated with daily doses of daclatasvir 60 mg and sofosbuvir 200 mg. The planned duration of treatment was 12 weeks, except for 24 weeks in those with either clinical evidence of cirrhosis or on immunosuppressive drugs. The end-points of the study were: (i) 12 weeks of follow-up after treatment completion, (ii) treatment discontinuation, or (iii) death or loss to follow-up. RESULTS: Thirty-six (88%) among 41 included patients (median [range] age: 48 [19-75] years; 25 [61%] male; genotype 1/3/4 were 17/ 22/2; cirrhosis 5) completed the treatment, two discontinued and three died during treatment. On an intention-to-treat basis, HCV RNA were undetectable at 4 weeks of treatment, treatment completion and after 12 weeks of follow-up in 40/41 (97.6%), 37/41 (90.2%) and 37/41 (90.2%), respectively. None of the patients had a relapse. CONCLUSIONS: Daclatasvir and half-daily dose of sofosbuvir was effective against genotype 1 and 3 HCV infection in patients with eGFR <30 ml/min. This combination was could be a pangenotypic treatment option for such patients. PMID- 29327402 TI - Response to 'High stoma prevalence and stoma reversal complications following anterior resection for rectal cancer: a population-based multicentre study'. PMID- 29327400 TI - A vitamin B12 conjugate of exendin-4 improves glucose tolerance without associated nausea or hypophagia in rodents. AB - AIMS: While pharmacological glucagon-like peptide-1 receptor (GLP-1R) agonists are FDA-approved for treating type 2 diabetes mellitus (T2DM) and obesity, a major side effect is nausea/malaise. We recently developed a conjugate of vitamin B12 (B12) bound to the GLP-1R agonist exendin-4 (Ex4), which displays enhanced proteolytic stability and retention of GLP-1R agonism. Here, we evaluate whether the conjugate (B12-Ex4) can improve glucose tolerance without producing anorexia and malaise. MATERIALS AND METHODS: We evaluated the effects of systemic B12-Ex4 and unconjugated Ex4 on food intake and body weight change, oral glucose tolerance and nausea/malaise in male rats, and on intraperitoneal glucose tolerance in mice. To evaluate whether differences in the profile of effects of B12-Ex4 vs unconjugated Ex4 are the result of altered CNS penetrance, rats received systemic injections of fluorescein-Ex4 (Flex), Cy5-B12 or Cy5-B12-Ex4 and brain penetrance was evaluated using confocal microscopy. Uptake of systemically administered Cy5-B12-Ex4 in insulin-containing pancreatic beta cells was also examined. RESULTS: B12-Ex4 conjugate improves glucose tolerance, but does not elicit the malaise and anorexia produced by unconjugated Ex4. While Flex robustly penetrates into the brain (dorsal vagal complex, paraventricular hypothalamus), Cy5-B12 and Cy5-B12-Ex4 fluorescence were not observed centrally, supporting an absence of CNS penetrance, in line with observed reduction in CNS associated Ex4 side effects. Cy5-B12-Ex4 colocalizes with insulin in the pancreas, suggesting direct pancreatic action as a potential mechanism underlying the hypoglycaemic effects of B12-Ex4. CONCLUSION: These novel findings highlight the potential clinical utility of B12-Ex4 conjugates as possible future T2DM therapeutics with reduced incidence of adverse effects. PMID- 29327404 TI - A novel red emitting phosphor LiBaB9 O15 :Sm2+ /Sm3+ , li+ with broad excitation band for white LEDs. AB - A novel tunable red emitting phosphor LiBaB9 O15 :Sm2+ /Sm3+ , Li+ with broad excitation band was synthesized by a high temperature solid-state method. Luminescence properties were investigated in detail by luminescence, X-ray photoelectron spectroscopy (XPS) spectra and CIE chromaticity coordinates. XPS data confirmed that there were Sm3+ in LiBaB9 O15 :Sm3+ and Sm2+ /Sm3+ in LiBaB9 O15 :Sm2+ /Sm3+ , respectively. Spectral property of LiBaB9 O15 :Sm3+ , LiBaB9 O15 :Sm3+ /Sm2+ and LiBaB9 O15 :Sm2+ , Li+ presented that the excitation band of Sm3+ widened and the excitation band of Sm2+ ranged from 350 to 450 nm. And the red light color is tunable with changing Li+ concentration. The results indicated that LiBaB9 O15 :Sm2+ /Sm3+ , Li+ may be promising red phosphor for white light emitting diodes. PMID- 29327405 TI - From "Non-encounters" to autonomic agency. Conceptions of patients with low back pain about their encounters in the health care system. AB - Low back pain is a considerable health problem which affects people around the world, causing major healthcare costs. The use of qualitative research methods enables us to describe and understand patients' experience of, and attitudes to, healthcare. The aim of the present phenomenographic study was to identify and describe the contextual nature of the conceptions of patients with low back pain of their encounters in the HCS. Seventeen patients with chronic or episodic low back pain classified as "high risk" were interviewed in open recall interviews, using videos of patients' initial physiotherapy sessions that had been recorded previously. The data were analysed using the phenomenographic method. Patients' conceptions of their clinical journey were formulated by a variety of themes: convincing care, lifestyle change, participation, reciprocality and ethicality of encounters. The themes varied in four categories: "non-encounters", seeking support, empowering collaboration and autonomic agency. The results showed a range of clinical interactions - from very negative and disempowering, to empowering and life changing. The key differences between the first and second categories were professionals "being present" and patients starting to understand their low back pain. Between the second and third category, the key aspects were strong therapeutic alliance and the active participation of the patient. Finally, the key differences between the third and fourth categories were the patient being in charge and taking responsibility while knowing that help was available if required. The results may help in improving the care of patients with low back pain. PMID- 29327403 TI - Biogenesis and regulatory hierarchy of phased small interfering RNAs in plants. AB - Several varieties of small RNAs including microRNAs (miRNAs) and small interfering RNAs (siRNAs) are generated in plants to regulate development, genome stability and response to adverse environments. Phased siRNA (phasiRNA) is a type of secondary siRNA that is processed from a miRNA-mediated cleavage of RNA transcripts, increasing silencing efficiency or simultaneously suppressing multiple target genes. Trans-acting siRNAs (ta-siRNAs) are a particular class of phasiRNA produced from noncoding transcripts that silence targets in trans. It was originally thought that 'one-hit' and 'two-hit' models were essential for processing distinct TAS precursors; however, a single hit event was recently shown to be sufficient at triggering all types of ta-siRNAs. This review discusses the findings about biogenesis, targeting modes and regulatory networks of plant ta-siRNAs. We also summarize recent advances in the generation of other phasiRNAs and their possible biological benefits to plants. PMID- 29327406 TI - Short and medium-term efficacy of sodium glucose co-transporter-2 (SGLT-2) inhibitors: A meta-analysis of randomized clinical trials. AB - AIMS: Sodium glucose co-transport-2 (SGLT-2) inhibitors reduce tubular glucose reabsorption, producing a reduction of blood glucose without stimulating insulin release. The aim of this meta-analysis was the systematic collection of available data from randomized trials, in order to establish the durability of the efficacy of SGLT-2 inhibitors on glycaemic control and body mass index. METHODS: A meta analysis was performed, including all trials with a duration of at least 12 weeks, comparing SGLT-2 inhibitors with non-SGLT-2 inhibitor agents in type 2 diabetes. The principal outcome was the effect of SGLT-2 inhibitors on hemoglobin A1c (HbA1c) at 12, 24, 52 and 104 weeks. Data on body mass index at the same time points were also collected. RESULTS: Among 66 randomized trials, HbA1c reduction at 12, 24, 52 and 104 weeks was 0.63% (0.57; 0.68, 0.63% (0.57; 0.70), 0.66% (0.57; 0.74) and 0.60% (0.40; 0.81), respectively. SGLT-2 inhibitors showed a greater efficacy than dipeptidyl-peptidase-4 inhibitors (DPP-4i). Sulfonylureas appeared to be superior to SGLT-2 inhibitors at 12 weeks, but not at 24 and 52 weeks; SGLT-2 inhibitors produced a greater reduction in HbA1c than did sulfonylureas at 104 weeks. SGLT-2 inhibitor-induced weight loss in placebo controlled trials appeared to increase progressively with the duration of treatment. CONCLUSIONS: SGLT-2 inhibitors showed a good persistence of efficacy, at least up to 2 years, with a small but significant superiority over DPP-4i. Sulfonylureas are more effective in the very short term, but less effective in the longer term. PMID- 29327407 TI - Bioavailability and metabolism of rosemary infusion polyphenols using Caco-2 and HepG2 cell model systems. AB - BACKGROUND: Rosmarinus officinalis is an aromatic plant used in folk medicine as a result of the therapeutic properties associated with its phenolic composition, being rich in rosmarinic acid (RA) and caffeic acid (CA). To better understand the bioactivity of these compounds, their absorption and metabolism were assessed in human Caco-2 and HepG2 cells, as small intestine and liver models, respectively, using RA and CA standards, as well as a rosemary infusion and ferulic acid (FA). RESULTS: Test compounds were partially up-taken and metabolized by Caco-2 and HepG2 cells, although a higher metabolization rate was observed after hepatic incubation compared to intestinal incubation. CA was the compound best absorbed followed by RA and FA, showing metabolites percentages of 30.4%, 11.8% and 4.4% in Caco-2 and 34.3%, 10.3% and 3.2% in HepG2 cells, respectively. RA in the rosemary infusion showed improved bioavailability compared to pure RA. Methyl derivatives were the main metabolites detected for CA and RA after intestinal and hepatic metabolism, followed by methyl-glucuronidates and glucuronidates. RA was also minimally hydrolyzed into CA, whereas FA only was glucuronidated. Rosemary polyphenols followed the same biotransformation pathways as the standards. In addition, phase II derivatives of luteolin were observed. CONCLUSION: Rosemary polyphenols are partially metabolized in both the intestine and liver. (c) 2018 Society of Chemical Industry. PMID- 29327408 TI - The Photoconversion of Phytochrome Includes an Unproductive Shunt Reaction Pathway. AB - Phytochromes are modular bimodal photoswitches that control gene expression for morphogenetic processes in plants. These functions are triggered by photoinduced conversions between the inactive and active states of the photosensory module, denoted as Pr and Pfr, respectively. In the present time-resolved resonance Raman spectroscopic study of bacterial representatives of this photoreceptor family, we demonstrate that these phototransformations do not represent linear processes but include a branching reaction back to the initial state, prior to (de)activation of the output module. Thus, only a fraction of the photoreceptors undergoing the phototransformations can initiate the downstream signaling process, consistent with phytochrome's function as a sensor for more durable changes of light conditions. PMID- 29327409 TI - Cultural aspects of pain: A study of Indian Asian women in the UK. AB - OBJECTIVES: Culture and ethnicity are acknowledged as important factors in the context of the biopsychosocial model. They may contribute to explaining the experience of pain, therapeutic encounters within healthcare, and the strategies that individuals use to cope with pain. The present study explored these issues in a sample of Indian Asian women in the UK. METHODS: Based on a phenomenological approach, 17 women participated in five semi-structured group interviews. Data were analysed using qualitative content analysis, so as to identify core themes and subthemes inductively from the data. RESULTS: Six themes were identified: meaning of pain; personal experience of pain; causes of pain; coping strategies; family and friends; experience of healthcare. Pain was conceptualized in both physical and mental terms, and its experience was explained largely in terms of functional consequences. The causes of pain offered suggested externalized beliefs, relating to events in participants' lives, rather than being expressed in biomedical terms. Alongside culture-specific therapies, the women spoke of coping strategies based on rest and activity. Although satisfaction with healthcare appeared to be high overall, problems due to communication - sometimes related to a language barrier - were voiced by some participants. CONCLUSIONS: Greater attention to cultural aspects of the pain experience may assist health professionals in communicating with and managing patients with pain from ethnic minority backgrounds. PMID- 29327411 TI - Reductive Alkaline Release of N-Glycans Generates a Variety of Unexpected, Useful Products. AB - Release of O-glycans by reductive beta-elimination has become routine in many glyco-analytical laboratories and concomitant release of N-glycans has repeatedly been observed. Revisiting this somewhat forgotten mode of N-glycan release revealed that all kinds of N-glycans including oligomannosidic and complex-type N glycans from plants with 3-linked fucose and from mammals with or without 6 linked fucose and with sialic acid could be recovered. However, the mass spectra of the obtained products revealed very surprising facts. Even after 16 h incubation in 1 M sodium borohydride, a large part of the glycans occurred in reducing form. Moreover, about one third emerged in the form of the stable amino functionalized 1-amino-1-deoxy-glycitol. When avoiding acidic conditions, considerable amounts of glycosylamine were observed. In addition, a compound with a reduced asparagine and de-N-acetylation products, in particular of sialylated glycans, was seen. The relative yields of the products reducing glycosylamine, reducing N-glycan, 1-amino-1-deoxy-glycitol or glycitol could be controlled by the release conditions, foremost by temperature and borohydride concentration. Thus, chemical release of N-glycans constitutes a cost-saving alternative to enzymatic hydrolysis for the preparation of precursors for the production of reference compounds for various formats of N-glycan analysis. Moreover, it allows to obtain a stable amino-functionalized glycan derivative, which can be employed to construct glycan arrays or affinity matrices. PMID- 29327412 TI - Partial Proteome of the Corynetoxin-Producing Gram-Positive Bacterium, Rathayibacter toxicus. AB - Rathayibacter toxicus is a Gram-positive bacterium that is the causative agent of annual ryegrass toxicity (ARGT), a disease that causes devastating losses in the Australian livestock industry. R. toxicus exhibits a complex life cycle, using the nematode Anguina funesta as a physical vector to carry it up to the seed head of the host plant. ARGT is caused by a tunicamycin-like corynetoxin that is produced in R. toxicus-infected seed galls. We analyzed protein expression in R. toxicus under stationary growth phase conditions to obtain a more complete understanding of the biology of this organism and identify potential targets for immunoassay development. A total of 323 unique proteins were identified, including those with putative roles in secondary metabolism and pathogenicity. The proteome analysis for this complex phytopathogenic Gram-positive bacterium will facilitate in the characterization of proteins necessary for host colonization and toxin production, and assist in the development of diagnostic assays. Data are available via ProteomeXchange with identifier PXD004238. PMID- 29327413 TI - ITPA Activity in Children Treated by Azathioprine: Relationship to the Occurrence of Adverse Drug Reactions and Inflammatory Response. AB - Azathioprine (AZA), a thiopurine drug, is widely used in the treatment of children with immunological diseases such as inflammatory bowel disease (IBD) and autoimmune hepatitis (AIH); however, interindividual variability in the occurrence of adverse drug reactions (ADRs) and drug response is observed. This study investigated (i) the relationships between inosine triphosphate pyrophosphatase (ITPA) activity, an enzyme involved in thiopurine metabolism, and the occurrence of ADRs in children with immunological disease on AZA therapy, and (ii) the relationship between ITPA activity and the inflammatory activity observed in children with IBD. ITPA and TPMT activities were determined in 106 children with immunological disease on AZA therapy. Markers of hepatotoxicity, myelotoxicity, pancreatitis and inflammation as well as clinical information were retrospectively collected during regular medical visits. No significant association was found between ITPA activity and hepatotoxicity or clinical ADRs such as cutaneous reactions, arthralgia, flulike symptoms and gastrointestinal disorders. Concerning myelotoxicity, a significant relation was observed between ITPA activity and RBC mean corpuscular volume (MCV; p=0.003). This observation may be related to the significant relationship found between high ITPA activity and the increase in gamma-globulin level reflecting inflammation (p=0.005). In our study, ITPA activity was not associated with occurrence of ADRs, but a relationship between high ITPA activity and gamma-globulin, a marker of inflammation, was found in children with IBD. Therefore, measurement of ITPA activity may help to identify children with IBD predisposed to residual inflammation on AZA therapy. Further prospective studies are needed to confirm this result. PMID- 29327410 TI - Genomic insights into the Acidobacteria reveal strategies for their success in terrestrial environments. AB - Members of the phylum Acidobacteria are abundant and ubiquitous across soils. We performed a large-scale comparative genome analysis spanning subdivisions 1, 3, 4, 6, 8 and 23 (n = 24) with the goal to identify features to help explain their prevalence in soils and understand their ecophysiology. Our analysis revealed that bacteriophage integration events along with transposable and mobile elements influenced the structure and plasticity of these genomes. Low- and high-affinity respiratory oxygen reductases were detected in multiple genomes, suggesting the capacity for growing across different oxygen gradients. Among many genomes, the capacity to use a diverse collection of carbohydrates, as well as inorganic and organic nitrogen sources (such as via extracellular peptidases), was detected - both advantageous traits in environments with fluctuating nutrient environments. We also identified multiple soil acidobacteria with the potential to scavenge atmospheric concentrations of H2 , now encompassing mesophilic soil strains within the subdivision 1 and 3, in addition to a previously identified thermophilic strain in subdivision 4. This large-scale acidobacteria genome analysis reveal traits that provide genomic, physiological and metabolic versatility, presumably allowing flexibility and versatility in the challenging and fluctuating soil environment. PMID- 29327414 TI - E-PREP: A competency-based emergency department procedural training programme. PMID- 29327415 TI - Mandatory misrepresentation. AB - The ethical use of college membership in the statement of political opinion. PMID- 29327416 TI - Comparative Proteomics Studies of Insect Cuticle by Tandem Mass Spectrometry: Application of a Novel Proteomics Approach to the Pea Aphid Cuticular Proteins. AB - The cuticle is a biological composite material consisting principally of N acetylglucosamine polymer embedded in cuticular proteins (CPs). CPs have been studied and characterized by mass spectrometry in several cuticular structures and in many arthropods. Such analyses were carried out by protein extraction using SDS followed by electrophoresis, allowing detection and identification of numerous CPs. To build a repertoire of cuticular structures from Bombyx mori, Apis mellifera and Anopheles gambiae the use of SDS and electrophoresis was avoided. Using the combination of hexafluoroisopropanol and of a surfactant compatible with MS, a high number of CPs was identified in An. gambiae wings, legs and antennae, and in the thoracic integument cuticle of Ap. mellifera pupae. The exoskeleton analysis of B. mori larvae allowed to identify 85 CPs from a single larva. Finally, the novel proteomics approach was tested on cuticles left behind after the molt from the fourth instar of Acyrthosiphon pisum. Analysis of these cast cuticles allowed to identify 100 Ac. pisum CPs as authentic cuticle constituents. These correspond to 68% of the total putative CPs previously annotated for this pea aphid. While this paper analyzes only the recovered cuticular proteins, peptides from many other proteins were also detected. PMID- 29327417 TI - Konjac flour noodles associated with gastric outlet obstruction. PMID- 29327418 TI - Response to Verbeek and Ruotsalainen letter to the editor. PMID- 29327420 TI - Expanding the phenotype of SLC25A42-associated mitochondrial encephalomyopathy. AB - SLC25A42 gene encodes an inner mitochondrial membrane protein that imports Coenzyme A into the mitochondrial matrix. A mutation in this gene was recently reported in a subject born to consanguineous parents who presented with mitochondrial myopathy with muscle weakness and lactic acidosis. In this report, we present 12 additional individuals with the same founder mutation who presented with variable manifestations ranging from asymptomatic lactic acidosis to a severe phenotype characterized by developmental regression and epilepsy. Our report confirms the link between SLC25A42 and mitochondrial disease in humans, and suggests that pathogenic variants in SLC25A42 should be interpreted with the understanding that the associated phenotype may be highly variable. PMID- 29327421 TI - Ionic liquid chemically bonded basalt fibers for in-tube solid-phase microextraction. AB - Ionic liquids have been widely used in different fields by advantage of their specific properties. In this work, 1-methyl-3-(3-trimethoxysilyl propyl)imidazolium chloride was prepared and chemically bonded onto basalt fibers for in-tube solid-phase microextraction. Through combining in-tube extraction device with high-performance liquid chromatography equipped with a diode array detector, an online enrichment and analysis method for eight polycyclic aromatic hydrocarbons was established under the optimum conditions. A good enrichment factor (52-814), good linearity (0.10-15 and 0.20-15 MUg/L), low limits of detection (0.03-0.05 MUg/L), and low limits of quantitation (0.10-0.20 MUg/L) were achieved using a sample volume of 50 mL. Analysis method was applied to the real samples including the groundwater and wastewater from a chemical industry park, some target analytes were detected and the relative recoveries were in the range of 80.4-116.8%. PMID- 29327423 TI - Corrigendum. PMID- 29327419 TI - Treatment interruption in HIV-positive patients followed up in Cameroon's antiretroviral treatment programme: individual and health care supply-related factors (ANRS-12288 EVOLCam survey). AB - INTRODUCTION: Decreasing international financial resources for HIV and increasing numbers of antiretroviral treatment (ART)-treated patients may jeopardise treatment continuity in low-income settings. Using data from the EVOLCam ANRS 12288 survey, this study aimed to document the prevalence of unplanned treatment interruption for more than 2 consecutive days (TI>2d) and investigate the associated individual and health care supply-related factors within the Cameroonian ART programme. METHODS: A cross-sectional mixed methods survey was carried out between April and December 2014 in 19 HIV services of the Centre and Littoral regions. A multilevel logistic model was estimated on 1885 ART-treated patients in these services to investigate factors of TI>2d in the past 4 weeks. RESULTS: Among the study population, 403 (21%) patients reported TI>2d. Patients followed up in hospitals reporting ART stock-outs were more likely to report TI>2d while those followed up in the Littoral region, in medium- or small-sized hospitals and in HIV services proposing financial support were at lower risk of TI>2d. The following individual factors were also associated with a lower risk of TI>2d: living in a couple, having children, satisfaction with attention provided by doctor, tuberculosis co-infection and not having consulted a traditional healer. CONCLUSIONS: Besides identifying individual factors of TI>2d, our study highlighted the role of health care supply-related factors in shaping TI in Cameroon's ART programme, especially the deleterious effect of ART stock-outs. Our results also suggest that the high proportion of patients reporting TI could jeopardise progress in the fight against HIV in the country, unless effective measures are quickly implemented like ensuring the continuity of ART supply. PMID- 29327422 TI - Prognosis and distribution of lymph nodes metastases in resectable primary pulmonary lymphoepithelioma-like carcinoma: A large cohort from a single center. AB - BACKGROUND: Primary pulmonary lymphoepithelioma-like carcinoma is a rare subtype of lung cancer. Until now, the characteristics of lymph nodes metastases in resectable cases have not yet been reported. METHODS: In this study, a total of 87 consecutive patients with primary pulmonary lymphoepithelioma-like carcinoma that received surgical treatment were investigated from October 1999 to August 2016. The clinical and radiological data and follow-up information were extracted from hospital records in detail. RESULTS: In a univariate analysis, those patients with an early pathological stage (I-II), low rate of lymph node metastases (<30%) and a low number of positive lymph nodes (<5) showed longer recurrence-free survival and overall survival (all P < 0.05). However, the early pathological stage was identified as the only factor independently associated with recurrence-free survival by multivariate analysis (P = 0.038). In a preoperative lymph nodes evaluation, the accuracy and specificity of computed tomography alone were 52.9% (46/87) and 88% (302/343), respectively, and 73.2% of these cases with incorrect nodal staging (30/41) were upstaged. Skipping metastases were more frequent in operated stage N2 cases (71.4%), whereas whether or not those patients showed skipping metastasis did not affect their recurrence free survival or overall survival (P > 0.05). The highest metastasis frequencies for specific lobes with primary lymphoepithelioma-like carcinoma are as follows: #5 left upper lobe (21.4%); #7 left lower lobe (40.7%); #2R (28.6%) and/or #4R (14.3%) right upper lobe; #7 (42.9%) right lower lobe; #7 (28%) and/or superior mediastinal nodes (36%) right middle lobe. CONCLUSION: Based on accurate staging and uncertain survival benefit, complete mediastinal lymph nodes dissection is still required for curative resection. PMID- 29327424 TI - The Choreography of Group Affiliation. AB - When two people move in synchrony, they become more social. Yet it is not clear how this effect scales up to larger numbers of people. Does a group need to move in unison to affiliate, in what we term unitary synchrony; or does affiliation arise from distributed coordination, patterns of coupled movements between individual members of a group? We developed choreographic tasks that manipulated movement synchrony without explicitly instructing groups to move in unison. Wrist accelerometers measured group movement dynamics and we applied cross-recurrence analysis to distinguish the temporal features of emergent unitary synchrony (simultaneous movement) and distributed coordination (coupled movement). Participants' unitary synchrony did not predict pro-social behavior, but their distributed coordination predicted how much they liked each other, how they felt toward their group, and how much they conformed to each other's opinions. The choreography of affiliation arises from distributed coordination of group movement dynamics. PMID- 29327426 TI - Quantification of total cholesterol in human milk by gas chromatography. AB - Human milk provides the key nutrients necessary for infant growth and development. The objective of this study was to develop and validate a method to analyze the cholesterol content in liquid human milk samples along lactation. Direct saponification of the sample using ethanolic potassium hydroxide solution under cold conditions was applied and unsaponifiable matter was separated by centrifugation. Cholesterol was converted into its trimethylsilyl ether and the derivative analyzed by gas chromatography coupled with a flame ionization detector. Cholesterol was quantified using epicoprostanol as internal standard. The method is suitable for the determination of cholesterol in only 0.3 g of human milk. It has been validated showing good repeatability (CV(r) < 15%) and intermediate reproducibility (CV(iR) < 15%). The method was used to analyze human milk obtained from five mothers collected at day 30(+/-3), 60 (+/-3) and 120 (+/ 3) after delivery. The cholesterol content in human milk slightly decreased from 13.1 mg/100 g at 1 month to 11.3 mg/100 g 120 days after delivery. The method can also be used to determine desmosterol, an intermediate in cholesterol synthesis. PMID- 29327427 TI - Aerobic Photooxidative Synthesis of beta-Alkoxy Monohydroperoxides Using an Organo Photoredox Catalyst Controlled by a Base. AB - Transition-metal-free synthesis of beta-alkoxy monohydroperoxides via aerobic photooxidation using an acridinium photocatalyst was developed. This method enables the synthesis of some novel hydroperoxides. The peroxide source is molecular oxygen, which is cost-effective and atomically efficient. Magnesium oxide plays an important role as a base in the catalytic system. PMID- 29327428 TI - An endochondral ossification approach to early stage bone repair: Use of tissue engineered hypertrophic cartilage constructs as primordial templates for weight bearing bone repair. AB - Mimicking endochondral ossification to engineer constructs offers a novel solution to overcoming the problems associated with poor vascularisation in bone repair. This can be achieved by harnessing the angiogenic potency of hypertrophic cartilage. In this study, we demonstrate that tissue-engineered hypertrophically primed cartilage constructs can be developed from collagen-based scaffolds cultured with mesenchymal stem cells. These constructs were subsequently implanted into femoral defects in rats. It was evident that the constructs could support enhanced early stage healing at 4 weeks of these weight-bearing femoral bone defects compared to untreated defects. This study demonstrates the value of combining knowledge of development biology and tissue engineering in a developmental engineering inspired approach to tissue repair. PMID- 29327430 TI - Knowledge, attitudes, representations and declared practices of nurses and physicians about obesity in a university hospital: training is essential. AB - In the context of a worldwide obesity epidemic, healthcare providers play a key role in obesity management. Knowledge of current guidelines and attitudes to prevent stigmatization are especially important. This study aimed to assess knowledge, attitudes, beliefs, perception of opportunity for intervention, declared practices and need for training and material of nurses and physicians about obesity in a Swiss University Hospital. A total of 834 physicians and nurses filled an online survey. The questionnaire was based on literature, exploratory interviews and expert committee review. It was pre-tested with 15 physicians and nurses. Participants declared a low level of negative attitudes towards individuals living with obesity. However, the results highlighted a lack of knowledge to diagnose obesity in adults and children, as well as confidence and training to care of patients with obesity. One-third of providers did not know how to calculate body mass index. Half of providers felt it was part of their role to take care of patients with obesity, even if 55% of them had the feeling that they did not have adequate training. Nurses and physicians working in a university hospital showed a low level of negative attitudes but a lack of knowledge and skills on obesity management. Training should be improved in this population to insure adequate and coherent messages and equal access to evidence based treatment for patients living with obesity. PMID- 29327429 TI - In vivo migration of endogenous brain progenitor cells guided by an injectable peptide amphiphile biomaterial. AB - Biomaterials hold great promise in helping the adult brain regenerate and rebuild after trauma. Peptide amphiphiles (PAs) are highly versatile biomaterials, gelling and forming macromolecular structures when exposed to physiological levels of electrolytes. We are here reporting on the first ever in vivo use of self-assembling PA carrying a Tenascin-C signal (E2 Ten-C PA) for the redirection of endogenous neuroblasts in the rodent brain. The PA forms highly aligned nanofibers, displaying the migratory sequence of Tenascin-C glycoprotein as epitope. In this in vivo work, we have formed in situ a gel of aligned PA nanofibers presenting a migratory Tenascin-C signal sequence in the ventral horn of the rostral migratory stream, creating a track reaching the neocortex. Seven days posttransplant, doublecortin positive cells were observed migrating inside and alongside the injected biomaterial, reaching the cortex. We observed a 24 fold increase in number of redirected neuroblasts for the E2 Ten-C PA-injected animals compared to control. We also found injecting the E2 Ten-C PA to cause minimal neuroinflammatory response. Analysing GFAP+ astrocytes and Iba1+ microglia activation, the PA does not elicit a stronger neuroinflammatory response than would be expected from a small needle stab wound. Redirecting endogenous neuroblasts and increasing the number of cells reaching a site of injury using PAs may open up new avenues for utilizing the pool of neuroblasts and neural stem cells within the adult brain for regenerating damaged brain tissue and replacing neurons lost to injury. PMID- 29327431 TI - Enhanced bone regeneration and visual monitoring via superparamagnetic iron oxide nanoparticle scaffold in rats. AB - A main challenge for use of scaffolds in bone engineering involves non-invasive monitoring in vivo and enhanced bone regeneration. The tissue repair effect of superparamagnetic iron oxide nanoparticles (SPIONs) was demonstrated previously by our group. However, testing in vivo is needed to confirm in vitro results. Here, SPIONs loaded gelatin sponge (GS) was used as a scaffold (SPIONs-GS) and implanted in the incisor sockets of Sprague-Dawley rats. Incisor sockets filled with nothing and filled with GS served as controls. Rats were sacrificed at 2 and 4 weeks. A significant decrease in the signal intensity of T2-weighted magnetic resonance imaging (MRI) in the SPIONs-GS group was noted. Changes in image intensity of scaffolds (indicating scaffold degradation and interaction with host tissues) could be visually monitored over time. Microcomputed tomography showed that the SPIONs-GS group had more newly formed bone (64.44 +/- 10.92 vs. 28.1 +/- 4.49, p < .0001) and a better preserved alveolar ridge than blank control group at 4 weeks (0.962 +/- 0.01 vs. 0.92 +/- 0.01, p < .0001). Histology confirmed imaging results, showing good consistency in new bone formation and scaffold degradation. The number of SPIONs decreased rapidly with time due to quick degradation of GS, whereas the number of endocytic SPIONs in cells increased with time. These residual SPIONs, together with newly formed bone, could be detected by MRI at 4 weeks. Therefore, it was clear that SPIONs induced active osteogenesis. In conclusion, good visibility on MRI and enhanced regeneration of bone can be obtained by implanting SPIONs-GS in vivo without using an external magnetic field. PMID- 29327432 TI - A rhodamine-triazole fluorescent chemodosimeter for Cu2+ detection and its application in bioimaging. AB - A rhodamine-based fluorescent chemodosimeter rhodamine hydrazide-triazole (RHT) tethered with a triazole moiety was developed for Cu2+ detection. In aqueous medium, the RHT probe exhibited high selectivity and sensitivity toward Cu2+ among other metal ions. The addition of Cu2+ triggered a fluorescence emission of RHT by 384-fold (Phi = 0.33) based on a ring-opening process and a subsequent hydrolysis reaction. Moreover, RHT also showed a selective colorimetric response toward Cu2+ from colorless solution to pink, readily observed with the naked eye. The limit of detection of RHT for Cu2+ was calculated to be 1 nM (0.06 ppb). RHT was successfully demonstrated to detect Cu2+ in Chang liver cells by confocal fluorescence microscopy. PMID- 29327433 TI - Factors influencing skin cancer excision rates in Scottish primary care. AB - Skin cancer incidence rates are rising in the UK, yet many areas are experiencing a shortage of dermatologists. We sought to compare skin cancer excision rates between general practice (GP) surgeons to identify factors associated with good practice, through a retrospective analysis of GP skin cancer histopathology reports in three Scottish Health Boards over a 4-year period. Postal questionnaires were used to explore factors affecting surgeons' excision rates. GPs excised 895 skin cancers (4.5% of the 19 853 regional total) during the period. Of the basal cell carcinomas, 308 would be classified as low-risk by current National Institute for Health and Care Excellence criteria. Of the returned questionnaires, 58 accounted for 631 (70.5%) of the excised skin cancers. Analysing completeness of skin cancer excision, there was a statistically significant difference between GPs performing excision on >= 11 lesions/month compared with those performing excision on <= 10/month. Policymakers may wish to consider systems to facilitate low-risk patients being treated by GPs who undertake frequent surgical procedures. PMID- 29327435 TI - Impact of dietary induced precocious gut maturation on cecal microbiota and its relation to the blood-brain barrier during the postnatal period in rats. AB - BACKGROUND: Precocious maturation of the gastrointestinal barrier (GIB) in newborn mammals can be induced by dietary provocation, but how this affects the gut microbiota and the gut-brain axis remains unknown. The objective of this study was to investigate effects of induced GIB maturation on gut microbiota composition and blood-brain barrier (BBB) permeability. METHODS: Suckling rats were studied at 72 h after gavage with phytohemagglutinin (PHA) or microbial protease (PT) to induce maturation of GIB. For comparison, untreated suckling and weaned rats were included (n = 10). Human serum albumin (HSA) was administered orally and analyzed in blood to assess permeability of the GIB, while intraperitoneally injected bovine serum albumin (BSA) was measured in the brain tissue for BBB permeability. The cecal microbial composition, plasma lipopolysaccharide-binding protein (LBP) levels and short-chain fatty acids in serum and brain were analyzed. KEY RESULTS: Cessation of HSA passage to blood after PHA or PT treatment was similar to that seen in weaned rats. Interestingly, concomitant increases in cecal Bacteroidetes and plasma LBP levels were observed after both PHA and PT treatments. The BBB passage of BSA was surprisingly elevated after weaning, coinciding with lower plasma LBP levels and specific microbial taxa and increased acetate uptake into the brain. CONCLUSIONS & INFERENCES: This study provides evidence that the gut microbiota alteration following induced precocious GIB maturation may induce low-grade systemic inflammation and alter SCFAs utilization in the brain which may also play a potential role in GIB-BBB dysfunction disorders in neonates. PMID- 29327436 TI - Effect of patterned electrospun hierarchical structures on alignment and differentiation of mesenchymal stem cells: Biomimicking bone. AB - Considering the complex hierarchical structure of bone, biomimicking the micro and nano level features should be an integral part of scaffold fabrication for successful bone regeneration. We aim to biomimic the microstructure and nanostructure of bone and study the effect of physical cues on cell alignment, proliferation, and differentiation. To achieve this, we have divided the scaffolds into groups: electrospun SU-8 nanofibers, electrospun SU-8 nanofibers with UV treatment, and micropatterned (20 MUm sized ridges and grooves) SU-8 nanofibers by photolithography with UV treatment. Two types of culture conditions were applied: with and without osteoinduction medium. In vitro cell proliferation assays, protein estimation, alkaline phosphatase osteodifferentiation assay, live dead assay, and cell alignment studies were performed on these micropatterned nanofiber domains. Our findings show that patterned surface induced an early osteodifferentiation of mesenchymal stem cells even in absence of osteoinduction medium. An interesting similarity with the helicoidal plywood model of the bone was observed. The cells showed layering and rotation along the patterns with time. This resembles the in vivo anisotropic multilamellar bone tissue architecture thus, closely mimicking the subcellular features of bone. This might serve as a smart biomaterial surface for mesenchymal stem cell differentiation in therapeutics where the addition of external chemical factors is a challenge. PMID- 29327434 TI - A fast and reliable method for monitoring of prophage-activating chemicals. AB - Bacteriophages, that is viruses that infect bacteria, either lyse bacteria directly or integrate their genome into the bacterial genome as so-called prophages, where they remain at a silent state. Both phages and bacteria are able to survive in this state. However, prophages can be reactivated with the introduction of chemicals, followed by the release of a high number of phage particles, which could infect other bacteria, thus harming ecosystems by a viral bloom. The basics for a fast, automatable analytical method for the detection of prophage-activating chemicals are developed and successfully tested here. The method exploits the differences in metabolic heat produced by Escherichia coli with (lambda+) and without the lambda prophages (lambda-). Since the metabolic heat primarily reflects opposing effects (i.e. the reduction of heat-producing cells by lysis and enhanced heat production to deliver the energetic costs for the synthesis of phages), a systematic analysis of the influence of the different conditions (experimentally and in silico) was performed and revealed anoxic conditions to be best suited. The main advantages of the suggested monitoring method are not only the possibility of obtaining fast results (after only few hours), but also the option for automation, the low workload (requires only few minutes) and the suitability of using commercially available instruments. The future challenge following this proof of principle is the development of thermal transducers which allow for the electronic subtraction of the lambda+ from the lambda- signal. PMID- 29327437 TI - Intraspecies variation in a widely distributed tree species regulates the responses of soil microbiome to different temperature regimes. AB - Plant characteristics in different provenances within a single species may vary in response to climate change, which might alter soil microbial communities and ecosystem functions. We conducted a glasshouse experiment and grew seedlings of three provenances (temperate, subtropical and tropical origins) of a tree species (i.e., Eucalyptus tereticornis) at different growth temperatures (18, 21.5, 25, 28.5, 32 and 35.5 degrees C) for 54 days. At the end of the experiment, bacterial and fungal community composition, diversity and abundance were characterized. Measured soil functions included surrogates of microbial respiration, enzyme activities and nutrient cycling. Using Permutation multivariate analysis of variance (PerMANOVA) and network analysis, we found that the identity of tree provenances regulated both structure and function of soil microbiomes. In some cases, tree provenances substantially affected the response of microbial communities to the temperature treatments. For example, we found significant interactions of temperature and tree provenance on bacterial community and relative abundances of Chloroflexi and Zygomycota, and inorganic nitrogen. Microbial abundance was altered in response to increasing temperature, but was not affected by tree provenances. Our study provides novel evidence that even a small variation in biotic components (i.e., intraspecies tree variation) can significantly influence the response of soil microbial community composition and specific soil functions to global warming. PMID- 29327438 TI - Establishing RNA virus resistance in plants by harnessing CRISPR immune system. AB - Recently, CRISPR-Cas (clustered, regularly interspaced short palindromic repeats CRISPR-associated proteins) system has been used to produce plants resistant to DNA virus infections. However, there is no RNA virus control method in plants that uses CRISPR-Cas system to target the viral genome directly. Here, we reprogrammed the CRISPR-Cas9 system from Francisella novicida to confer molecular immunity against RNA viruses in Nicotiana benthamiana and Arabidopsis plants. Plants expressing FnCas9 and sgRNA specific for the cucumber mosaic virus (CMV) or tobacco mosaic virus (TMV) exhibited significantly attenuated virus infection symptoms and reduced viral RNA accumulation. Furthermore, in the transgenic virus targeting plants, the resistance was inheritable and the progenies showed significantly less virus accumulation. These data reveal that the CRISPR/Cas9 system can be used to produce plant that stable resistant to RNA viruses, thereby broadening the use of such technology for virus control in agricultural field. PMID- 29327439 TI - The "hidden" concealed left-sided accessory pathway: An uncommon cause of SVT in young people. AB - BACKGROUND: Concealed left-sided accessory pathways (CLAP) are a cause of supraventricular tachycardia (SVT) in the young. Most are mapped with right ventricular (RV) apical/outflow pacing. Rarely, alternative means of mapping are required. We review our experience from three pediatric electrophysiology (EP) centers with a rare form of "hidden" CLAP. METHODS: All patients <21 years undergoing EP study from 2008 to 2014 with a "hidden" CLAP (defined as an accessory pathway [AP] for which RV pacing at cycle lengths [CL] stable for mapping did not demonstrate eccentric retrograde conduction) were included. EXCLUSION CRITERIA: preexcitation. Demographic, procedural, and follow-up data were collected. RESULTS: A total of 23 patients met the criteria (median age, 14.3 years [range 7-21], weight, 51 kg [31-99]). 21 (96%) had SVT and one AFIB (4%). APs were adenosine sensitive in 7/20 patients (35%) and VA conduction was decremental in six (26%). CLAP conduction was demonstrable with orthodromic reentrant tachycardia in all patients, with RV extrastimulus testing in seven (30%) and with rapid RV pacing (=16 years old currently residing in one of eight urban cities in China were recruited for an online cross-sectional survey, which collected information on socio demographics, sexual behaviours, HIV care-seeking behaviours, and healthcare utilization. Based on a question about residency status, each participant was classified as an urban local resident, urban transplant, or rural transplant. Multivariable multinomial logistic regression was used to examine the associations between risky behaviours and healthcare utilization among these three groups. RESULTS: Among 2007 MSM, the proportion of local, urban transplant and rural transplant were 32% (648/2007), 24% (478/2007), and 44% (881/2007), respectively. Compared with urban local resident MSM, urban transplant MSM were more likely to have ever tested for HIV (adjusted odds ratio (aOR) = 1.39, 95% confidence interval (CI): 1.08 to 1.80). Compared with urban transplant MSM, rural transplant MSM were less likely to have utilized any governmental sexual health services in the past three months (aOR = 0.75, 95% CI: 0.60 to 0.93), ever tested for HIV (aOR = 0.77, 95% CI: 0.61 to 0.96), ever initiated antiretroviral therapy (ART) (aOR = 0.16, 95% CI: 0.05 to 0.52), and ever purchased sex (aOR = 0.57, 95% CI: 0.38 to 0.85). No other significant differences were found in sexual behaviours among three groups. CONCLUSIONS: The widely used local/migrant categorization obscures important differences in HIV risk present between urban/rural subgroups among them. Previous studies of HIV risks in Chinese "migrant" may have failed to consider the role of structural factors such as discrimination or barriers to healthcare when interpreting their findings of higher HIV prevalence in this population. Low ART uptake among rural transplant MSM in this study is particularly concerning and underscore the need for HIV related interventions tailored for this group. PMID- 29327443 TI - Effect of gut stress induced by oxidized wheat gluten on the growth performance, gut morphology and oxidative states of broilers. AB - This study was to investigate the effect of oxidized wheat gluten (OG) on growth performance, gut morphology and its oxidative states of broilers. One hundred and eighty-day-old male broilers (10 chicks/pen) were randomly allocated into three dietary treatments: control diet (CON), diet with 8% wheat gluten (WG) and diet with 8% OG with six pens/treatment. Body weight (BW) (21 and 35 days) and average daily gain (ADG) (1-21 days and 22-35 days) decreased (p < .05) and feed conversion ratio (FCR) (1-21 days and 22-35 days) increased (p < .05) in OG treatment. Feed intake (FI) decreased (p < .05) in WG and OG treatments during 22 35 days. However, FI was not influenced by dietary treatments during 1-21 days (p > .05). The OG-fed broilers had a lower faecal pH value (p < .05) and higher faecal moisture content (p < 05) at 14, 21, 28 and 35 days. Villus height, crypt depth and V/C value were not different (p > .05) among treatments at 21 and 35 days. Lipid peroxidation (LPO) (21 and 35 days) and malondialdehyde (MDA) (35 days) content in crop of OG treatment increased (p < .05). Oxidized glutathione (GSSG) (21 days), LPO (21 and 35 days) and MDA (21 and 35 days) content in ileum of OG treatment increased (p < .05). The reduced glutathione/oxidized glutathione (GSH/GSSG) (21 days) and (GSH) (35 days) in ileum of OG treatment decreased (p < .05). The present findings indicate that OG might be a stressor for broiler gut, which could induce oxidative stress both in crop and in ileum, and the diarrhoea as well. The growth performance of broiler was consequently depressed. PMID- 29327444 TI - Developing a flexible, high-efficiency Agrobacterium-mediated sorghum transformation system with broad application. AB - Sorghum is the fifth most widely planted cereal crop in the world and is commonly cultivated in arid and semi-arid regions such as Africa. Despite its importance as a food source, sorghum genetic improvement through transgenic approaches has been limited because of an inefficient transformation system. Here, we report a ternary vector (also known as cohabitating vector) system using a recently described pVIR accessory plasmid that facilitates efficient Agrobacterium mediated transformation of sorghum. We report regeneration frequencies ranging from 6% to 29% in Tx430 using different selectable markers and single copy, backbone free 'quality events' ranging from 45% to 66% of the total events produced. Furthermore, we successfully applied this ternary system to develop transformation protocols for popular but recalcitrant African varieties including Macia, Malisor 84-7 and Tegemeo. In addition, we report the use of this technology to develop the first stable CRISPR/Cas9-mediated gene knockouts in Tx430. PMID- 29327446 TI - Current and Military-Specific Gender Minority Stress Factors and Their Relationship with Suicide Ideation in Transgender Veterans. AB - Research suggests the prevalence of suicide ideation and suicide attempts in the transgender veteran community may be upwards of 20 times higher than nontransgender veterans, who are known to be at increased risk than the general US population. This study aimed to understand the potential influence of external and internal minority stress experienced during and after military service on past-year and recent suicide ideation in a sample of 201 transgender veterans. Nonparametric bootstrapping analyses indicated past-year transgender-specific discrimination and rejection (external minority stress) indirectly predicted frequency of both past-year and past 2-week suicide ideation through past-year shame related to gender identity (internal minority stress). This result was significant when controlling for symptoms of depression and demographics. Similar patterns emerged when examining relationships among military external and internal minority stress on suicide outcomes. These results suggest that attempts to reduce both the experience and impact of minority stressors related to gender identity during and after military service may be an important avenue for suicide prevention. PMID- 29327445 TI - Don't just do something, stand there! The value and art of deliberate clinical inertia. AB - It can be difficult to avoid unnecessary investigations and treatments, which are a form of low-value care. Yet every intervention in medicine has potential harms, which may outweigh the potential benefits. Deliberate clinical inertia is the art of doing nothing as a positive response. This paper provides suggestions on how to incorporate deliberate clinical inertia into our daily clinical practice, and gives an overview of current initiatives such as 'Choosing Wisely' and the 'Right Care Alliance'. The decision to 'do nothing' can be complex due to competing factors, and barriers to implementation are highlighted. Several strategies to promote deliberate clinical inertia are outlined, with an emphasis on shared decision-making. Preventing medical harm must become one of the pillars of modern health care and the art of not intervening, that is, deliberate clinical inertia, can be a novel patient-centred quality indicator to promote harm reduction. PMID- 29327447 TI - iTRAQ-Based Proteomic Analysis Exploring the Influence of Hypoxia on the Proteome of Dental Pulp Stem Cells under 3D Culture. AB - Hypoxic preconditioning is commonly applied to enhance mesenchymal stem cells (MSCs) therapeutic effect before transplantation. Elucidating the effect of hypoxic preconditioning would be beneficial for improved application. However, the influence of hypoxia on dental tissue derived MSCs cultured in 3D was unknown. Thus, the present study is to investigate gene expression and proteome of dental pulp stem cells (DPSCs) after hypoxic preconditioning. DPSCs were isolated, cultured in a 3D system under the normoxic and hypoxic conditions. The gene expression was examined with reverse transcription polymerase chain reaction, and the proteome was analyzed using iTRAQ-based mass spectrometry. The expressions of HIF-1alpha, VEGFA, KDR at mRNA level was upregulated while BMP-2 was downregulated. Two thousand one hundred and fifteen proteins were identified and 57 proteins exhibited significant differences after hypoxic preconditioning (30 up-regulated, 27 down-regulated). Bioinformatic analysis revealed the majority of up-regulated proteins are involved in cellular process, angiogenesis, protein binding and transport, regulation of response to stimulus, metabolic processes, and immune response. Increased IL-6 and decreased TGF-1beta protein expression under hypoxic condition were verified by ELISA. Hypoxic preconditioning partly affected the gene and protein expression in DPSCs under 3D culture and may enhance the efficacy of MSCs transplantation. PMID- 29327448 TI - The Saliva Proteome of Dogs: Variations Within and Between Breeds and Between Species. AB - Saliva is a complex multifunctional fluid that bathes the oral cavity to assist in soft and hard tissue maintenance, lubrication, buffering, defense against microbes, and initiating digestion of foods. It has been extensively characterized in humans but its protein composition in dogs remains poorly characterized, yet saliva composition could explain (patho) physiological differences between individuals, breeds and with humans. This pilot discovery study aimed to characterize canine saliva from two breeds, Labrador retrievers and Beagles, and to compare this with human saliva using quantitative mass spectrometry. The analysis demonstrated considerable inter-individual variation and difference between breeds; however these were small in comparison to the differences between species. Functional mapping suggested roles of detected proteins similar to those found in human saliva with the exception of the initiation of digestion as salivary amylase was lacking or at very low abundance in canine saliva samples. Many potential anti-microbial proteins were detected agreeing with the notion that the oral cavity is under continuous microbial challenge. PMID- 29327449 TI - Clinical, microbiological and cytomorphometric evaluation of low-level laser therapy as an adjunct to periodontal therapy in patients with chronic periodontitis. AB - OBJECTIVE: A clinical prospective study was designed to evaluate microbiological, cytomorphometric and clinical efficacy of low-level laser therapy (LLLT) as an adjunct to periodontal therapy in the treatment of chronic periodontitis. METHODS: Sixty subjects were included and randomly assigned into 2 groups: SRP (scaling root planning) group (n = 30) and LLLT + SRP group (n = 30). Clinical parameters were measured before intervention, after the fifth treatment, and after a month. All subjects received oral hygiene instructions and full-mouth conservative periodontal treatment (removal of dental plaque followed by SRP). Afterwards, in group II, Kavo LLLT (980 nm, 0.2 W, 6 J/cm2 ) was applied. Subgingival samples were collected at baseline and after the fifth treatment to quantify Aggregatibacter actinomycetemcomitans, Prevotella intermedia, Porphyromonas gingivalis, Tannerella forsythensis and Treponema denticola by polymerase chain reaction (PCR). Gingival swabs were taken, and direct smears were prepared on slides for cytomorphometric analysis. RESULTS: Evaluation using clinical parameters showed better results in LLLT group. A statistically significant decrease in the prevalence of bacteria after treatment in LLLT group was observed for the following: T. forsythensis and T. denticola (P < .001), P. gingivalis (P < .01), A. actinomycetemcomitans and P. intermedia (P < .05). The values of nuclear area, perimeter and Ferret's diameter were significantly lower in both studied groups after treatment, but statistical significance was higher in LLLT group (P < .001) than in the SRP therapy group (P < .05). CONCLUSION: Low level laser therapy as an adjunct to periodontal therapy demonstrates short-term additional bacteriological, cytological and clinical benefits. PMID- 29327450 TI - The black legend on the Spanish presence in the low countries: Verifying shared beliefs on genetic ancestry. AB - OBJECTIVES: War atrocities committed by the Spanish army in the Low Countries during the 16th century are so ingrained in the collective memory of Belgian and Dutch societies that they generally assume a signature of this history to be present in their genetic ancestry. Historians claim this assumption is a consequence of the so-called "Black Legend" and negative propaganda portraying and remembering Spanish soldiers as extreme sexual aggressors. The impact of the presence of Spaniards during the Dutch Revolt on the genetic variation in the Low Countries has been verified in this study. MATERIALS AND METHODS: A recent population genetic analysis of Iberian-associated Y-chromosomal variation among Europe is enlarged with representative samples of Dutch (N = 250) and Flemish (N = 1,087) males. Frequencies of these variants are also compared between donors whose oldest reported paternal ancestors lived in-nowadays Flemish-cities affected by so-called Spanish Furies (N = 116) versus other patrilineages in current Flemish territory (N = 971). RESULTS: The frequencies of Y-chromosomal markers Z195 and SRY2627 decline steeply going north from Spain and the data for the Flemish and Dutch populations fits within this pattern. No trend of higher frequencies of these variants has been found within the well-ascertained samples associated with Spanish Fury cities. DISCUSSION: Although sexual aggression did occur in the 16th century, these activities did not leave a traceable "Spanish" genetic signature in the autochthonous genome of the Low Countries. Our results support the view that the 'Black Legend' and historical propaganda on sexual aggression have nurtured today's incorrect assumptions regarding genetic ancestry. PMID- 29327451 TI - Strengthening standards, transparency, and collaboration to support medicine evaluation: Ten years of the European Network of Centres for Pharmacoepidemiology and Pharmacovigilance (ENCePP). PMID- 29327453 TI - Catalytic Asymmetric Dearomatization of Indolyl Dihydropyridines through an Enamine Isomerization/Spirocyclization/Transfer Hydrogenation Sequence. AB - A highly efficient synthesis of enantioenriched spiroindolines by catalytic asymmetric dearomatization of indolyl dihydropyridines through a chiral phosphoric acid catalyzed enamine isomerization/spirocyclization/transfer hydrogenation sequence has been developed. This reaction proceeds under mild reaction conditions, affording novel spiroindolines in good yields (up to 88 %) with excellent enantioselectivity (up to 97 % ee). DFT calculations provide insights into the reaction mechanism as well as the origin of stereochemistry. PMID- 29327452 TI - Regenerative effects of human embryonic stem cell-derived neural crest cells for treatment of peripheral nerve injury. AB - Surgical intervention is the current gold standard treatment following peripheral nerve injury. However, this approach has limitations, and full recovery of both motor and sensory modalities often remains incomplete. The development of artificial nerve grafts that either complement or replace current surgical procedures is therefore of paramount importance. An essential component of artificial grafts is biodegradable conduits and transplanted cells that provide trophic support during the regenerative process. Neural crest cells are promising support cell candidates because they are the parent population to many peripheral nervous system lineages. In this study, neural crest cells were differentiated from human embryonic stem cells. The differentiated cells exhibited typical stellate morphology and protein expression signatures that were comparable with native neural crest. Conditioned media harvested from the differentiated cells contained a range of biologically active trophic factors and was able to stimulate in vitro neurite outgrowth. Differentiated neural crest cells were seeded into a biodegradable nerve conduit, and their regeneration potential was assessed in a rat sciatic nerve injury model. A robust regeneration front was observed across the entire width of the conduit seeded with the differentiated neural crest cells. Moreover, the up-regulation of several regeneration-related genes was observed within the dorsal root ganglion and spinal cord segments harvested from transplanted animals. Our results demonstrate that the differentiated neural crest cells are biologically active and provide trophic support to stimulate peripheral nerve regeneration. Differentiated neural crest cells are therefore promising supporting cell candidates to aid in peripheral nerve repair. PMID- 29327454 TI - Ultrafast All-Optical Switching of Germanium-Based Flexible Metaphotonic Devices. AB - Incorporating semiconductors as active media into metamaterials offers opportunities for a wide range of dynamically switchable/tunable, technologically relevant optical functionalities enabled by strong, resonant light-matter interactions within the semiconductor. Here, a germanium-thin-film-based flexible metaphotonic device for ultrafast optical switching of terahertz radiation is experimentally demonstrated. A resonant transmission modulation depth of 90% is achieved, with an ultrafast full recovery time of 17 ps. An observed sub picosecond decay constant of 670 fs is attributed to the presence of trap assisted recombination sites in the thermally evaporated germanium film. PMID- 29327455 TI - Bioactivity guided fractionation of methanolic extract of Terminalia arjuna for its CYP3A and CYP2D inhibition in rat liver microsomes. AB - Terminalia arjuna (T. arjuna) is an Indian medicinal plant belonging to the family Combretaceae and possesses numerous therapeutic activities including its immense cardioprotective activity. In the present work, a methanolic bark extract of T. arjuna was evaluated for CYP3A and CYP2D inhibition potential in rat liver microsomes (RLM). Further, the methanolic bark extract was fractionated successively using increasing polarity solvents starting with petroleum ether, chloroform, ethyl acetate and n-butanol. The fractions so obtained were also evaluated for their CYP3A and CYP2D inhibition potential. Probe substrates testosterone and dextromethorphan were used for CYP3A and CYP2D respectively. The IC50 values for the methanolic extract and the fractions were found to be less than 50 MUg/ml in RLM for both CYP3A and CYP2D isoenzymes. The most potent n butanol fraction was further fractionated with column chromatography to isolate the highest active constituent responsible for the activity. Fraction 4 of the n butanol extract was the most potent fraction with IC50 values of 5.64 +/- 0.735 MUg/ml and 16.63 +/- 0.879 MUg/ml for CYP3A and CYP2D in RLM, respectively. Therefore, in vitro data indicated that the Terminalia arjuna extract contains constituents that can potentially inhibit the CYP3A and CYP2D isoenzymes which may in turn lead to pharmacokinetic drug-herb interaction. PMID- 29327457 TI - Solvatochromic study of 3-N-(N'-methylacetamidino)benzanthrone and its interaction with dopamine by the fluorescence quenching mechanism. AB - The change in photophysical properties of the organic molecule due to solvatochromic effect caused by different solvent environments at room temperature gives information about the dipole moments of 3-N-(N' methylacetamidino)benzanthrone (3-MAB). The quantum yield, fluorescence lifetime of 3-MAB was measured in different solvents to calculate radiative and non radiative rate constants. The results revealed that the excited state dipole moment (MUe ) is relatively larger compared to the ground state dipole moment (MUg ), indicating the excited state of the dye under study is more polar than the ground state and the same trend is noticed with theoretical calculations performed using the CAM-B3LYP/6-311+G(d,p) method. Further, the study on preferential solvation was carried out for 3-MAB dye in ethyl acetate-methanol solvent mixture. The fluorescence quenching method has been employed for the detection of dopamine using 3-MAB as fluorescent probe, using steady-state and time resolved methods at room temperature. The method enables dopamine in the micro molar range to be detected. Also, an attempt to verify the quenching process by employing different models has been tried. Various rate parameters are measured using these models, our results indicates the quenching process is diffusion limited. PMID- 29327458 TI - Lead-induced DNA damage and cell apoptosis in human renal proximal tubular epithelial cell: Attenuation via N-acetyl cysteine and tannic acid. AB - This study investigates the exposure of lead-induced reactive oxygen species (ROS) generation, DNA damage, and apoptosis and also evaluates the therapeutic intervention using antioxidants in human renal proximal tubular cells (HK-2 cells). Following treatment of HK-2 cells with an increasing concentration of lead nitrate (0-50 MUM) for 24 h, the intracellular ROS level increased whereas the GSH level decreased significantly in a dose-dependent manner. Comet assay results revealed that lead nitrate showed the ability to increase the levels of DNA strand breaks in HK-2 cells. Lead exposure also induced apoptosis through caspase-3 activation at 30 MUg/mL. Pretreatment with N-acetylcysteine (NAC) and tannic acid showed a significant ameliorating effect on lead-induced ROS, DNA damage, and apoptosis. In conclusion, lead induces ROS, which may exacerbate the DNA damage and apoptosis via caspase-3 activation. Additionally, supplementation of antioxidants such as NAC and tannic acid may be used as salvage therapy for lead-induced DNA damage and apoptosis in an exposed person. PMID- 29327456 TI - Discovery and Characterization of CD12681, a Potent RORgamma Inverse Agonist, Preclinical Candidate for the Topical Treatment of Psoriasis. AB - With possible implications in multiple autoimmune diseases, the retinoic acid receptor-related orphan receptor RORgamma has become a sought-after target in the pharmaceutical industry. Herein are described the efforts to identify a potent RORgamma inverse agonist compatible with topical application for the treatment of skin diseases. These efforts culminated in the discovery of N-(2,4 dimethylphenyl)-N-isobutyl-2-oxo-1-[(tetrahydro-2H-pyran-4-yl)methyl]-2,3-dihydro 1H-benzo[d]imidazole-5-sulfonamide (CD12681), a potent inverse agonist with in vivo activity in an IL-23-induced mouse skin inflammation model. PMID- 29327459 TI - Subacute cutaneous lupus erythematosus: is clopidogrel a trigger? PMID- 29327460 TI - Nanocrystal-Polymer Particles: Extended Delivery Carriers for Osteoarthritis Treatment. AB - An efficient treatment for osteoarthritis (OA) can benefit from the local release of a high therapeutic dose over an extended period of time. Such a treatment will minimize systemic side effects and avoid the inconvenience of frequent injections. To this aim, nanocrystal-polymer particles (NPPs) are developed by combining the advantages of nanotechnology and microparticles. Nanocrystals are produced by wet milling kartogenin (KGN), which is known to promote chondrogenesis and to foster chondroprotection. A fluorescent biodegradable polymer is synthesized for intravital particle tracking. Polymer microparticles with 320 nm embedded KGN nanocrystals (KGN-NPPs) show a high drug loading of 31.5% (w/w) and an extended drug release of 62% over 3 months. In vitro, these particles do not alter mitochondrial activity in cultured human OA synoviocytes. In vivo, KGN-NPPs demonstrate higher bioactivity than a KGN solution in a murine mechanistic OA model based on histological assessment (Osteoarthritis Research Society International score), epiphyseal thickness (microcomputed tomography), OA biomarkers (e.g., vascular endothelial growth factor, Adamts5), and prolonged intra-articular persistence (fluorescence analysis). This work provides proof-of concept of a novel and innovative extended drug delivery system with the potential to treat human OA. PMID- 29327462 TI - Propensity score-matched outcomes after thoracic epidural or paravertebral analgesia for thoracotomy. AB - It is not known which regional analgesic technique is most effective or safest after open lung resection. We retrospectively examined outcomes in 828 patients who received thoracic epidural analgesia and 791 patients who received paravertebral block after lung resection between 2008 and 2012. We analysed outcomes for 648 patients, 324 who had each analgesic technique, matched by propensity scores generated with peri-operative data. There were 22 out of 324 (7%) postoperative respiratory complications after thoracic epidural and 23 out of 324 (7%) after paravertebral block, p = 0.88. For any postoperative complication, there were 80 out of 324 (25%) and 78 out of 324 (24%) complications, respectively, p = 0.85. There were 17 out of 324 (5%) re admissions to intensive care after thoracic epidural and 17 out of 324 (5%) after paravertebral block, p > 0.99, and the number of deaths before discharge were 6 out of 324 (2%) and 4 out of 324 (1%), respectively, p = 0.53. There was no significant difference in median (IQR [range]) hospital stay after thoracic epidural or paravertebral block, 6 (5-9 [2-94]) days vs. 6 (5-9 [2-122]), respectively, p = 0.83. Our study suggests that rates of complications as well as length of hospital stay after thoracic epidural analgesia and paravertebral blockade are similar. We were unable to compare analgesic efficacy due to incomplete data. PMID- 29327461 TI - Well-Balanced Ambipolar Conjugated Polymers Featuring Mild Glass Transition Temperatures Toward High-Performance Flexible Field-Effect Transistors. AB - Conjugated polymers, which can be fabricated by simple processing techniques and possess excellent electrical performance, are key to the fabrication of flexible polymer field-effect transistors (PFETs) and integrated circuits. Herein, two ambipolar conjugated polymers based on (3E,7E)-3,7-bis(2-oxo-1H-pyrrolo[2,3 b]pyridin-3(2H)-ylidene)benzo[1,2-b:4,5-b']difuran-2,6(3H,7H)-dione and dithienylbenzothiadiazole units, namely PNBDOPV-DTBT and PNBDOPV-DTF2BT, are developed. Both copolymers possess almost planar conjugated backbone conformations and suitable highest occupied molecular orbital (HOMO)/lowest unoccupied molecular orbital (LUMO) energy levels (-5.64/-4.38 eV for PNBDOPV DTBT and -5.79/-4.48 eV for PNBDOPV-DTF2BT). Note that PNBDOPV-DTBT has a glass transition temperature (140 degrees C) lower than the deformation temperature of polyethylene terephthalate (PET), meaning well-ordered molecular packing can be obtained on PET substrate before its deformation in mild thermal annealing process. Flexible PFETs based on PNBDOPV-DTBT fabricated on PET substrates exhibit high and well-balanced hole/electron mobilities of 4.68/4.72 cm2 V-1 s-1 under ambient conditions. After the further modification of Au source/drain electrodes with 1-octanethiol self-assembled monolayers, impressively high and well-balanced hole/electron mobilities up to 5.97/7.07 cm2 V-1 s-1 are achieved in the flexible PFETs. Meanwhile, flexible complementary-like inverters based on PNBDOPV-DTBT on PET substrate also afford a much high gain of 148. The device performances of both the PFETs and inverters are among the highest values for ambipolar conjugated polymers reported to date. PMID- 29327463 TI - Subcutaneous implantable cardioverter defibrillator (S-ICD) shocks in a patient with a left ventricular assist device. PMID- 29327465 TI - Has analgesia changed for lung resection surgery? PMID- 29327464 TI - The expression of an exogenous ACC deaminase by the endophyte Serratia grimesii BXF1 promotes the early nodulation and growth of common bean. AB - : Ethylene acts as an inhibitor of the nodulation process of leguminous plants. However, some bacteria can decrease deleterious ethylene levels by the action of the enzyme 1-aminocyclopropane-1-carboxylate (ACC) deaminase which degrades ACC, the ethylene precursor in all higher plants. Co-inoculation of rhizobia with endophytes enhances the rhizobial symbiotic efficiency with legumes, improving both nodulation and nitrogen fixation. However, not much is understood about the mechanisms employed by these endophytic bacteria. In this regard, the role of ACC deaminase from endophytic strains in assisting rhizobia in this process has yet to be confirmed. In this study, the role of ACC deaminase in an endophyte's ability to increase Rhizobium tropici nodulation of common bean was evaluated. To assess the effect of ACC deaminase in an endophyte's ability to promote rhizobial nodulation, the endophyte Serratia grimesii BXF1, which does not encode ACC deaminase, was transformed with an exogenous acdS gene. The results obtained indicate that the ACC deaminase-overexpressing transformant strain increased common bean growth, and enhanced the nodulation abilities of R. tropici CIAT899, in both cases compared to the wild-type non-transformed strain. Furthermore, plant inoculation with the ACC deaminase-overproducing strain led to an increased level of plant protection against a seed-borne pathogen. SIGNIFICANCE AND IMPACT OF THE STUDY: In this work, we studied the effect of ACC deaminase production by the bacterial endophyte Serratia grimesi BXF1, and its impact on the nodulation process of common bean. The results obtained indicate that ACC deaminase is an asset to the synergetic interaction between rhizobia and the endophyte, positively contributing to the overall legume-rhizobia symbiosis by regulating inhibitory ethylene levels that might otherwise inhibit nodulation and overall plant growth. The use of rhizobia together with an ACC deaminase-producing endophyte is, therefore, an important strategy for the development of new bacterial inoculants with increased performance. PMID- 29327466 TI - Analysis of trace levels of impurities and hydrogen isotopes in helium purge gas using gas chromatography for tritium extraction system of an Indian lead lithium ceramic breeder test blanket module. AB - In the fusion fuel cycle, the accurate analysis and understanding of the chemical composition of any gas mixture is of great importance for the efficient design of a tritium extraction and purification system or any tritium handling system. Methods like laser Raman spectroscopy and gas chromatography with thermal conductivity detector have been considered for hydrogen isotopes analyses in fuel cycles. Gas chromatography with a cryogenic separation column has been used for the analysis of hydrogen isotopes gas mixtures in general due to its high reliability and ease of operation. Hydrogen isotopes gas mixture analysis with cryogenic columns has been reported earlier using different column materials for percentage level composition. In the present work, trace levels of hydrogen isotopes (~100 ppm of H2 and D2 ) have been analyzed with a Zeolite 5A and a modified gamma-Al2 O3 column. Impurities in He gas (~10 ppm of H2 , O2 , and N2 ) have been analyzed using a Zeolite 13-X column. Gas chromatography with discharge ionization detection has been utilized for this purpose. The results of these experiments suggest that the columns developed were able to separate ppm levels of the desired components with a small response time (<6 min) and good resolution in both cases. PMID- 29327468 TI - Why do people become health workers? Analysis from life histories in 4 post conflict and post-crisis countries. AB - While there is a growing body of literature on how to attract and retain health workers once they are trained, there is much less published on what motivates people to train as health professions in the first place in low- and middle income countries and what difference this makes to later retention. In this article, we examine patterns in expressed motivation to join the profession across different cadres, based on 103 life history interviews conducted in northern Uganda, Sierra Leone, Cambodia, and Zimbabwe. A rich mix of reported motivations for joining the profession was revealed, including strong influence of "personal calling," exhortations of family and friends, early experiences, and chance factors. Desire for social status and high respect for health professionals were also significant. Economic factors are also important-not just perceptions of future salaries and job security but also more immediate ones, such as low cost or free training. These allowed low-income participants to access the health professions, to which they had shown considerably loyalty. The lessons learned from these cohorts, which had remained in service through periods of conflict and crisis, can influence recruitment and training policies in similar contexts to ensure a resilient health workforce. PMID- 29327467 TI - ERBB3-Binding Protein 1 (EBP1) Is a Novel Developmental Pluripotency-Associated-4 (DPPA4) Cofactor in Human Pluripotent Cells. AB - Developmental Pluripotency-Associated-4 (DPPA4) is one of the few core pluripotency genes lacking clearly defined molecular and cellular functions. Here, we used a proteomics screening approach of human embryonic stem cell (hESC) nuclear extract to determine DPPA4 molecular functions through identification of novel cofactors. Unexpectedly, the signaling molecule ERBB3-binding protein 1 (EBP1) was the strongest candidate binding partner for DPPA4 in hESC. EBP1 is a growth factor signaling mediator present in two isoforms, p48 and p42. The two isoforms generally have opposing functions, however their roles in pluripotent cells have not been established. We found that DPPA4 preferentially binds p48 in pluripotent and NTERA-2 cells, but this interaction is largely absent in non pluripotent cells and is reduced with differentiation. The DPPA4-EBP1 interaction is mediated at least in part in DPPA4 by the highly conserved SAF-A/B, Acinus and PIAS (SAP) domain. Functionally, we found that DPPA4 transcriptional repressive function in reporter assays is significantly increased by specific p48 knockdown, an effect that was abolished with an interaction-deficient DPPA4 DeltaSAP mutant. Thus, DPPA4 and EBP1 may cooperate in transcriptional functions through their physical association in a pluripotent cell specific context. Our study identifies EBP1 as a novel pluripotency cofactor and provides insight into potential mechanisms used by DPPA4 in regulating pluripotency through its association with EBP1. Stem Cells 2018;36:671-682. PMID- 29327469 TI - A retrospective survey of exposure history to chemotherapy or radiotherapy in 940 consecutive patients with primary myelofibrosis. PMID- 29327470 TI - Investigation of the effect of rapid and slow external pH increases on Enterococcus faecalis biofilm grown on dentine. AB - BACKGROUND: Calcium hydroxide is a common endodontic medicament and has an antimicrobial effect by increasing the localized pH within the root canal. However, Enterococcus faecalis has shown some resistance to calcium hydroxide. METHODS: A flow cell apparatus was used to grow an E. faecalis biofilm on dentine discs. Following 4 weeks growth in Todd Hewitt Broth, flow cells were exposed to either a rapid or slow increase to pH 11.5 or 12.5. Cellular viability was determined using serial plating and the number of colony-forming units was normalized against the cellular protein content. Scanning electron microscopy was carried out to qualitatively observe the effects of the different rates of pH increase. RESULTS: A significant difference in viability between the pH rapid and slow groups was not shown in this study. Compared with pH 11.5 solutions, pH 12.5 solutions were more effective at killing bacteria although some E. faecalis still survived. CONCLUSIONS: Enterococcus faecalis did not adapt and develop a greater resistance to high pH following a slow rise in pH compared with a rapid rise in pH. As expected, pH 12.5 was more effective in reducing bacterial numbers compared with pH 11.5 although E. faecalis was not completely eliminated. PMID- 29327471 TI - Exploring microbial N2 O reduction: a continuous enrichment in nitrogen free medium. AB - N2 O is a potent greenhouse gas, but also a potent electron acceptor. In search of thermodynamically favourable - yet undescribed - metabolic pathways involving N2 O reduction, we set up a continuous microbial enrichment, inoculated with activated sludge, fed with N2 O as the sole electron acceptor and acetate as an electron donor. A nitrogen-free mineral medium was used with the intention of creating a selective pressure towards organisms that would use N2 O directly as source of nitrogen for cell synthesis. Instead, we obtained a culture dominated by microorganisms of the Rhodocyclaceae family growing by N2 O reduction to N2 coupled to N2 fixation. Biomass yields of this culture were 40% lower than those of a previously reported culture grown under comparable conditions but with an NH4+-amended medium, as expected from the extra energy expense of N2 fixation. Interestingly, we found no significant difference in yields whether N2 O or acetate was the growth-limiting substrate in the chemostat in contrast to the study with NH4+-amended medium, in which biomass yields were roughly 30% lower during acetate limiting conditions. PMID- 29327473 TI - Risk assessment for metalworking fluids and cancer outcomes. AB - BACKGROUND: Metalworking fluids (MWF) are complex mixtures with dermal and inhalation exposure. Published reports reveal excess cancer risk. METHODS: Using published findings exposure response was derived for each attributable cancer site. Aggregate excess lifetime risk was estimated by applying a lifetable calculation. RESULTS: Cancer sites contributing the most attributable cases were larynx, esophagus, brain, female breast, and uterine cervix. With constant workplace MWF exposure of 0.1 mg/m3 over a 45 years working life, the risk of attributable cancer was 3.7% or, excluding the less certain female cancers, 3.1%. CONCLUSION: Substantial cancer risks occurred at 0.1 mg/m3 MWF, one fourth of the current NIOSH recommended exposure limit for MWF total particulate. Because ingredients in current MWF remain from earlier formulations, it is likely that some MWF carcinogenicity persists today. Although important changes have occurred, newer agents are being continually introduced with little or no knowledge of chronic health risks. PMID- 29327472 TI - Mesenchymal stem cell deficiency influences megakaryocytopoiesis through the TNFAIP3/NF-kappaB/SMAD pathway in patients with immune thrombocytopenia. AB - Immune thrombocytopenia (ITP) is an autoimmune disease. Mesenchymal stem cells (MSCs) play important roles in the physiology and homeostasis of the haematopoietic system, including supporting megakaryocytic differentiation from CD34+ haematopoietic progenitor cells. Tumour necrosis factor alpha-induced protein 3 (TNFAIP3, also termed A20) plays a key role in terminating NF-kappaB signalling. Human genetic studies showed that the polymorphisms of the TNFAIP3 gene may contribute to ITP susceptibility. In this study, we showed a significant decrease in TNFAIP3 and increase in NF-kappaB/SMAD7 in ITP-MSCs. In co-cultures with CD34+ cells, NF-kappaB was overexpressed in MSCs from healthy controls (HC MSCs) after transfection with NFKBIA (IkappaB)-specific short hairpin (sh)RNAs, resulting in MSC deficiency and a reduction in megakaryocytic differentiation and thrombopoiesis. Knockdown of TNFAIP3 expression using TNFAIP3-specific shRNAs in HC-MSCs affected megakaryocytopoiesis. However, IKBKB knockdown corrected megakaryocytopoiesis inhibition in the ITP-MSCs by decreasing NF-kappaB expression. Amplified TNFAIP3 expression in ITP-MSCs by TNFAIP3 cDNA can facilitate megakaryocyte differentiation. shRNA-mediated knockdown of SMAD7 expression rescued the impaired MSC function in ITP patients. Therefore, we demonstrate that a pathological reduction in TNFAIP3 levels induced NF kappaB/SMAD7 pathway activation, causing a deficiency in MSCs in ITP patients. The ability of ITP-MSCs to support megakaryocytic differentiation and thrombopoiesis of CD34+ cells was impaired. PMID- 29327474 TI - Long-term effects of intralymphatic immunotherapy (ILIT) on canine atopic dermatitis. AB - BACKGROUND: Subcutaneous allergen immunotherapy (SCIT) is an established and efficacious therapy for canine atopic dermatitis (AD). In humans, intralymphatic immunotherapy (ILIT) was reported to be associated with fewer and less severe adverse effects than subcutaneous allergen immunotherapy and to be efficacious for several years after three intralymphatic injections. OBJECTIVE: To evaluate safety and effects of ILIT in a case series of dogs with (AD). ANIMALS: Fifty one privately owned dogs with AD. METHODS: Dogs received injections of 0.2 mL alum precipitated allergen extract into the popliteal lymph nodes at monthly intervals for 3-5 months. Lesion scores, pruritus and medication scores were determined before and at three and 12 months after beginning immunotherapy, and compared in a per protocol analysis (PP) and an intention-to-treat analysis (ITT). RESULTS: Twenty two dogs completed the study and 29 dogs did not fulfil study completion criteria due to lack of a final study visit (21 of 29) or due to insufficient improvement (14 of 29). All scores improved during the study with both analyses. For pruritus and Quality of Life scores this improvement was significant with both analyses; for Canine Atopic Dermatitis Extent and Severity Index (CADESI)-03 values and medication scores only with PP. The only rare adverse effects observed included mild swelling of the lymph node post-injection and increased pruritus. CONCLUSION AND CLINICAL RELEVANCE: ILIT is safe and feasible, and provides long lasting relief in some atopic dogs with a limited number of injections. PMID- 29327475 TI - Tuning the Activity of Carbon for Electrocatalytic Hydrogen Evolution via an Iridium-Cobalt Alloy Core Encapsulated in Nitrogen-Doped Carbon Cages. AB - Graphene, a 2D material consisting of a single layer of sp2 -hybridized carbon, exhibits inert activity as an electrocatalyst, while the incorporation of heteroatoms (such as N) into the framework can tune its electronic properties. Because of the different electronegativity between N and C atoms, electrons will transfer from C to N in N-doped graphene nanosheets, changing inert C atoms adjacent to the N-dopants into active sites. Notwithstanding the achieved progress, its intrinsic activity in acidic media is still far from Pt/C. Here, a facile annealing strategy is adopted for Ir-doped metal-organic frameworks to synthesize IrCo nanoalloys encapsulated in N-doped graphene layers. The highly active electrocatalyst, with remarkably reduced Ir loading (1.56 wt%), achieves an ultralow Tafel slope of 23 mV dec-1 and an overpotential of only 24 mV at a current density of 10 mA cm-2 in 0.5 m sulfuric acid solution. Such superior performance is even superior to the noble-metal catalyst Pt. Surface structural and computational studies reveal that the superior behavior originates from the decreased DeltaGH* for HER induced by the electrons transferred from the alloy core to the graphene layers, which is beneficial for enhancing C?H binding. PMID- 29327476 TI - O-GlcNAcylation in oral squamous cell carcinoma. AB - BACKGROUND: Two post-translational mechanisms commonly demonstrated in various cancers are protein phosphorylation and glycosylation by O-linked beta-N acetylglucosamine (O-GlcNAc). However, only phosphorylation of the epidermal growth factor receptor (EGFR)/Akt pathway has been reported in oral squamous cell carcinoma (OSCC). Therefore, we aimed to determine both post-translational modifications in OSCC tissues and in oral cancer cells compared to normal tissues and oral keratinocytes and to find correlations of these modifications with histological grading. METHODS: Thirty-two OSCC and ten normal formalin-fixed and paraffin-embedded sections were probed with the anti-O-GlcNAc, anti-O-GlcNAc transferase (OGT), anti-phosphorylated-EGFRtyr1173 , and anti-phosphorylated Aktser473 antibodies following standard immunohistochemistry. The immunohistochemical (IHC) score was determined using the Fromowitz standard. Whole cell lysates of oral cancer cells and normal oral keratinocytes were immunoblotted with the anti-O-GlcNAc antibody. RESULTS: The median IHC scores of O-GlcNAc or OGT between OSCC and normal tissues were not different, whereas those of phosphorylated-EGFRtyr1173 and phosphorylated-Aktser473 were significantly higher in OSCC than normal tissues (P < .001 and P < .01, respectively). Similarly, expression of O-GlcNAcylated proteins in oral cancer cells and normal oral keratinocytes did not differ. In the OSCC group, the median IHC scores of O GlcNAc and OGT were significantly lower than those of phosphorylated-EGFRtyr1173 and phosphorylated-Aktser473 (P < .01 and P < .001, respectively). The IHC scores of O-GlcNAc or OGT were not determined to correlate with histological grading. CONCLUSION: Unlike other types of cancers, our findings demonstrate that the levels of O-GlcNAcylation are not significantly increased in OSCC tissues or in oral cancer cells and are not associated with the histological grading of OSCC. PMID- 29327477 TI - Nitrogen sources affect productivity, desiccation tolerance and storage stability of Beauveria bassiana blastospores. AB - AIMS: Nitrogen is a critical element in industrial fermentation media. This study investigated the influence of various nitrogen sources on blastospore production, desiccation tolerance and storage stability using two strains of the cosmopolitan insect-pathogenic fungus Beauveria bassiana. METHODS AND RESULTS: Complex organic sources of nitrogen such as soy flour, autolysed yeast and cottonseed flour induced great numbers of blastospores after 2-3 days of fermentation, which also survived drying and remained viable (32-56% survival) after 9 months storage at 4 degrees C, although variations were found between strains. Nitrogen availability in the form of free amino acids directly influenced blastospore production and resistance to desiccation. Increasing glucose and nitrogen concentrations up to 120 and 30 g l-1 , respectively, did not improve blastospore production but enhanced desiccation tolerance. Cell viability after drying and upon fast rehydration was increased when >=25 g acid-hydrolysed casein per litre was supplemented in the liquid culture medium. CONCLUSIONS: These findings indicate that low-cost complex nitrogen compounds are suitable to enhance yeast-like growth by B. bassiana with good desiccation tolerance and therefore support its further scale-up production as a mycoinsecticide. SIGNIFICANCE AND IMPACT OF THE STUDY: Nitrogen is the most expensive nutrient in liquid media composition, but this study underscores the feasibility of using low-cost nitrogen compounds composed mainly of agro-industrial by-products for rapid production of desiccation-tolerant B. bassiana blastospores by liquid culture fermentation. PMID- 29327478 TI - Interventions to improve working conditions of nursing staff in acute care hospitals: Scoping review. AB - AIM: To conduct a scoping review to examine and map the interventions proposed for the improvement of the working conditions of nursing staff in acute care hospitals. BACKGROUND: The Registered Nurse Forecasting (RN4CAST) project and other studies have determined the impact that the nursing staff has on the quality of care. The nursing staff's higher levels of burnout, job dissatisfaction and negative perception of the quality of care provided caused worse health outcomes. METHODS: A scoping review was carried out. By searching in SCOPUS, PubMed, CINAHL, Cochrane, Dialnet and in the grey literature, 705 potentially relevant papers were identified. The final analysis included 21 papers and three grey documents. RESULTS: The studies analysed proposed interventions at the macro-management, meso-management and micro-management levels, although the interventions at the macro- and meso-levels produce better staff outcomes. CONCLUSIONS: The findings of this review can be applied to management at different levels: measures to improve the patient-nurse ratio at the macro-management level, the horizontal hierarchies at the meso-management level, the mind-body techniques at the micro-management level. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse managers and leaders should implement interventions at different organisational levels to improve the working conditions of the nursing staff and other health outcomes. PMID- 29327479 TI - The immunological disease continuum of inflammation against self as an explanation for the lack of association between hidradenitis suppurativa and autoimmune thyroid disease. PMID- 29327480 TI - Membrane-active peptide PV3 efficiently eradicates multidrug-resistant Pseudomonas aeruginosa in a mouse model of burn infection. AB - The aim of this study was to evaluate the topical bactericidal activity of peptide PV3 against a MDR isolate of Pseudomonas aeruginosa in a mouse model of burn infection. The structural analysis of PV3 by circular dichroism spectroscopy indicated a low peptide helical content in water, whereas a high helical content was observed in the presence of the more hydrophobic 50% (v/v) trifluoroethanol/water buffer. A confocal microscopy analysis indicated that the main action of PV3 occurred at the membrane of bacteria. Peptide PV3 exhibited superior in vitro anti-Pseudomonas activity and killing kinetics as compared with doripenem. A single dose of the topically applied peptide PV3 (4 * MBC, 120 min) was found to be sufficient to eradicate MDRP. aeruginosa in a bacterially infected mouse burn wound model, whereas doripenem (4 * MBC) failed to eradicate the initial inoculum. This indicates a potent and fast PV3-associated bactericidal activity, contrary to doripenem. An in-depth analysis of mouse skin by histopathology revealed that peptide PV3 (4 * MBC) did not induce any topical skin toxicity. Overall, the data strongly suggest that peptide PV3 might be a potent candidate antimicrobial agent active on antibiotic-resistant isolates of pathogenic bacteria. PMID- 29327481 TI - The genome and microbiome of a dikaryotic fungus (Inocybe terrigena, Inocybaceae) revealed by metagenomics. AB - Recent advances in molecular methods have increased our understanding of various fungal symbioses. However, little is known about genomic and microbiome features of most uncultured symbiotic fungal clades. Here, we analysed the genome and microbiome of Inocybaceae (Agaricales, Basidiomycota), a largely uncultured ectomycorrhizal clade known to form symbiotic associations with a wide variety of plant species. We used metagenomic sequencing and assembly of dikaryotic fruiting body tissues from Inocybe terrigena (Fr.) Kuyper, to classify fungal and bacterial genomic sequences, and obtained a nearly complete fungal genome containing 93% of core eukaryotic genes. Comparative genomics reveals that I. terrigena is more similar to ectomycorrhizal and brown rot fungi than to white rot fungi. The reduction in lignin degradation capacity has been independent from and significantly faster than in closely related ectomycorrhizal clades supporting that ectomycorrhizal symbiosis evolved independently in Inocybe. The microbiome of I. terrigena fruiting-bodies includes bacteria with known symbiotic functions in other fungal and non-fungal host environments, suggesting potential symbiotic functions of these bacteria in fungal tissues regardless of habitat conditions. Our study demonstrates the usefulness of direct metagenomics analysis of fruiting-body tissues for characterizing fungal genomes and microbiome. PMID- 29327482 TI - Streptococcus oralis maintains homeostasis in oral biofilms by antagonizing the cariogenic pathogen Streptococcus mutans. AB - Bacteria residing in oral biofilms live in a state of dynamic equilibrium with one another. The intricate synergistic or antagonistic interactions between them are crucial for determining this balance. Using the six-species Zurich "supragingival" biofilm model, this study aimed to investigate interactions regarding growth and localization of the constituent species. As control, an inoculum containing all six strains was used, whereas in each of the further five inocula one of the bacterial species was alternately absent, and in the last, both streptococci were absent. Biofilms were grown anaerobically on hydroxyapatite disks, and after 64 h they were harvested and quantified by culture analyses. For visualization, fluorescence in situ hybridization and confocal laser scanning microscopy were used. Compared with the control, no statistically significant difference of total colony-forming units was observed in the absence of any of the biofilm species, except for Fusobacterium nucleatum, whose absence caused a significant decrease in total bacterial numbers. Absence of Streptococcus oralis resulted in a significant decrease in Actinomyces oris, and increase in Streptococcus mutans (P < .001). Absence of A. oris, Veillonella dispar or S. mutans did not cause any changes. The structure of the biofilm with regards to the localization of the species did not result in observable changes. In summary, the most striking observation of the present study was that absence of S. oralis resulted in limited growth of commensal A. oris and overgrowth of S. mutans. These data establish highlight S. oralis as commensal keeper of homeostasis in the biofilm by antagonizing S. mutans, so preventing a caries favoring dysbiotic state. PMID- 29327483 TI - Hospital nurses' information retrieval behaviours in relation to evidence based nursing: a literature review. AB - OBJECTIVE: The purpose of this literature review is to provide an overview of the information retrieval behaviour of clinical nurses, in terms of the use of databases and other information resources and their frequency of use. METHODS: Systematic searches carried out in five databases and handsearching were used to identify the studies from 2010 to 2016, with a populations, exposures and outcomes (PEO) search strategy, focusing on the question: In which databases or other information resources do hospital nurses search for evidence based information, and how often? RESULTS: Of 5272 titles retrieved based on the search strategy, only nine studies fulfilled the criteria for inclusion. The studies are from the United States, Canada, Taiwan and Nigeria. The results show that hospital nurses' primary choice of source for evidence based information is Google and peers, while bibliographic databases such as PubMed are secondary choices. Data on frequency are only included in four of the studies, and data are heterogenous. CONCLUSIONS: The reasons for choosing Google and peers are primarily lack of time; lack of information; lack of retrieval skills; or lack of training in database searching. Only a few studies are published on clinical nurses' retrieval behaviours, and more studies are needed from Europe and Australia. PMID- 29327484 TI - Factors affecting general practice collaboration with voluntary and community sector organisations. AB - Collaborative working between general practice (GP) and voluntary and community sector (VCS) organisations is increasingly championed as a means of primary care doing more with less and of addressing patients' "wicked problems". This paper aims to add to the knowledge base around collaborative practice between GPs and VCS organisations by examining the factors that aid or inhibit such collaboration. A case study design was used to examine the lived-experience of GPs and VCS organisations working collaboratively. Four cases, each consisting of a GP and a VCS organisation with whom they work collaboratively, were identified. Interviews (n = 18) and a focus group (n = 1) were conducted with staff within each organisation. Transcribed data were analysed thematically. Whilet there are similarities across cases in their use of, for example, Health Trainers and social prescribing, the form and function of GP-VCS collaborations were unique to their local context. The identified factors affecting GP-VCS collaboration reflect those found in previous service evaluations and the broader literature on partnership working; shared understanding, time and resources, trust, strong leadership, operational systems and governance and the "negotiation" of professional boundaries. While the current political environment may represent an opportunity for collaborations to develop, there are issues yet to be resolved before collaboration-especially more holistic and integrated approaches-becomes systematically embedded into practice. PMID- 29327485 TI - Right-left propensity of cardiogenic cerebral embolism in standard versus bovine aortic arch variant. AB - Left-hemispheric ischemic strokes are more frequent overall and often have a worse outcome than their right-hemispheric counterparts. We hypothesized that the right-left propensity of CE cerebral infarcts differs between patients with standard and bovine arch variants. We retrospectively identified all patients with acute stroke of the anterior circulation admitted to our primary stroke center between January 2011 and June 2017 who had moderate- to high-risk cardio embolic sources according to the SSS-TOAST classification. From amongst these patients, only those with available cross-sectional imaging of the aortic arch were included. Lesion side and patterns on diffusion-weighted magnetic resonance imaging were determined blinded to the aortic arch imaging. One hundred and nineteen patients met the TOAST criteria for moderate- or high-risk cardio embolic source. Of these, 58 (49%) were men and the median age was 71.9 years; 33% of the patients had a bovine arch. The most common etiologies of CE were atrial fibrillation (n = 80 [67%]) and congestive heart failure with ejection fraction <30% (n = 18 [15%]). In patients with bovine arch there was an approximately 50% chance of having a right- or left-sided infarct. Although there was a trend towards right-sided lesions in patients with standard arches, this did not reach statistical significance. No statistically significant difference in embolic stroke laterality was demonstrated in our relatively small sample. Bovine arch could be an independent risk factor for cardio-embolic embolism. Clin. Anat. 31:310-313, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29327486 TI - IR-Driven Ultrafast Transfer of Plasmonic Hot Electrons in Nonmetallic Branched Heterostructures for Enhanced H2 Generation. AB - The ultrafast transfer of plasmon-induced hot electrons is considered an effective kinetics process to enhance the photoconversion efficiencies of semiconductors through strong localized surface plasmon resonance (LSPR) of plasmonic nanostructures. Although this classical sensitization approach is widely used in noble-metal-semiconductor systems, it remains unclear in nonmetallic plasmonic heterostructures. Here, by combining ultrafast transient absorption spectroscopy with theoretical simulations, IR-driven transfer of plasmon-induced hot electron in a nonmetallic branched heterostructure is demonstrated, which is fabricated through solvothermal growth of plasmonic W18 O49 nanowires (as branches) onto TiO2 electrospun nanofibers (as backbones). The ultrafast transfer of hot electron from the W18 O49 branches to the TiO2 backbones occurs within a timeframe on the order of 200 fs with very large rate constants ranging from 3.8 * 1012 to 5.5 * 1012 s-1 . Upon LSPR excitation by low energy IR photons, the W18 O49 /TiO2 branched heterostructure exhibits obviously enhanced catalytic H2 generation from ammonia borane compared with that of W18 O49 nanowires. Further investigations by finely controlling experimental conditions unambiguously confirm that this plasmon-enhanced catalytic activity arises from the transfer of hot electron rather than from the photothermal effect. PMID- 29327487 TI - Reductive Carbocyclization of Homoallylic Alcohols to syn-Cyclobutanes by a Boron Catalyzed Dual Ring-Closing Pathway. AB - The organoborane-catalyzed reductive carbocyclization of homoallylic alcohols has been developed by using hydrosilanes as reducing reagents to provide a range of 1,2-disubstituted arylcyclobutanes. The reaction proceeds in a cis-selective manner with high efficiency under mild conditions. Mechanistic studies, including deuterium scrambling and Hammett studies, and DFT calculations, suggest a dual ring-closing pathway. PMID- 29327489 TI - How can we protect youth from putative vaping gateway effects without denying smokers a less harmful option? PMID- 29327488 TI - Isolation of Human Photoreceptor Precursors via a Cell Surface Marker Panel from Stem Cell-Derived Retinal Organoids and Fetal Retinae. AB - Loss of photoreceptor cells due to retinal degeneration is one of the main causes of blindness in the developed world. Although there is currently no effective treatment, cell replacement therapy using stem-cell-derived photoreceptor cells may be a feasible future treatment option. In order to ensure safety and efficacy of this approach, robust cell isolation and purification protocols must be developed. To this end, we previously developed a biomarker panel for the isolation of mouse photoreceptor precursors from the developing mouse retina and mouse embryonic stem cell cultures. In the current study we applied this approach to the human pluripotent stem cell (hPSC) system, and identified novel biomarker combinations that can be leveraged for the isolation of human photoreceptors. Human retinal samples and hPSC-derived retinal organoid cultures were screened against 242 human monoclonal antibodies using a high through-put flow cytometry approach. We identified 46 biomarkers with significant expression levels in the human retina and hPSC differentiation cultures. Human retinal cell samples, either from fetal tissue or derived from embryonic and induced pluripotent stem cell cultures, were fluorescence-activated cell sorted (FACS) using selected candidate biomarkers that showed expression in discrete cell populations. Enrichment for photoreceptors and exclusion of mitotically active cells was demonstrated by immunocytochemical analysis with photoreceptor-specific antibodies and Ki-67. We established a biomarker combination, which enables the robust purification of viable human photoreceptors from both human retinae and hPSC-derived organoid cultures. Stem Cells 2018;36:709-722. PMID- 29327490 TI - Fetal subcutaneous cells have potential for autologous tissue engineering. AB - Major congenital malformations affect up to 3% of newborns. Infants with prenatally diagnosed soft tissue defects should benefit from having autologous tissue readily available for surgical implantation in the perinatal period. In this study, we investigate fetal subcutaneous cells as cellular source for tissue engineering. Fetal subcutaneous biopsies were collected from elective terminations at gestational Week 20-21. Cells were isolated, expanded, and characterized in vitro. To determine cell coverage, localization, viability, and proliferation in different constructs, the cells were seeded onto a matrix (small intestine submucosa) or in collagen gel with or without poly(epsilon caprolactone) mesh and were kept in culture for up to 8 weeks before analysis. Angiogenesis was analysed through a tube-forming assay. Fetal subcutaneous cells could be expanded until 43 +/- 3 population doublings, expressed mesenchymal markers, and readily differentiate into adipogenic and osteogenic lineages. The cells showed low adherence to small intestine submucosa and did not migrate deep into the matrix. However, in collagen gels, the cells migrated into the gel and proliferated with sustained viability for up to 8 weeks. The cells in the matrices expressed Ki67, CD73, and alpha-smooth muscle actin but not cytokeratin or CD31. Fetal cells derived from subcutaneous tissue demonstrated favourable characteristics for preparation of autologous tissue transplants before birth. Our study supports the theory that cells could be obtained from the fetus during pregnancy for tissue engineering purposes after birth. In a future clinical situation, autologous transplants could be used for reconstructive surgery in severe congenital malformations. PMID- 29327491 TI - Assessment of the dissipation, pre-harvest interval and dietary risk of carbosulfan, dimethoate, and their relevant metabolites in greenhouse cucumber (Cucumis sativus L.). AB - BACKGROUND: The dissipation behavior, pre-harvest interval and dietary risk of carbosulfan, dimethoate, and their relevant metabolites were investigated in greenhouse cucumber in Tianjin, northern China, to ensure raw consumption safety. RESULTS: Carbosulfan was metabolized to carbofuran, dibutylamine, 3 hydroxycarbofuran and 3-ketocarbofuran, and dimethoate was degraded to omethoate in cucumber fruits and leaves. The dissipation of carbosulfan, carbofuran, 3 hydroxycarbofuran and dimethoate fitted first-order kinetics well, with R2 ranging from 0.912 to 0.992, and their half-lives were 2.6, 2.7, 2.4 and 5.2 days in cucumber fruits and 2.8, 3.0, 4.6 and 2.5 days in leaves, respectively. The estimated daily intakes of the active ingredients and their relevant metabolites were 0.1-4% of the corresponding acceptable daily intakes. Acute oral exposure to carbofuran (a metabolite of carbosulfan) represented 367% of the acute reference dose (ARfD) for 1-6-year-old Chinese children and 227% for the general Chinese population. CONCLUSION: A minimum pre-harvest interval of 12 days for carbosulfan is proposed to ensure safe consumption of cucumber. The slow dissipation rate of omethoate in cucumber reveals that a longer pre-harvest interval (>= 27 days) is necessary to prevent dietary risk when dimethoate is applied to cucumber. (c) 2018 Society of Chemical Industry. PMID- 29327492 TI - A five-gene signature may predict sunitinib sensitivity and serve as prognostic biomarkers for renal cell carcinoma. AB - Sunitinib resistance is, nowadays, the major challenge for advanced renal cell carcinoma patients. Illuminating the potential mechanisms and exploring effective strategies to overcome sunitinib resistance are highly desired. We constructed a reliable gene signature which may function as biomarkers for prediction of sunitinib sensitivity and clinical prognosis. The gene expression profiles were obtained from The Cancer Genome Atlas database. By performing GEO2R analysis, numerous differentially expressed genes (DEGs) were found to be associated with sunitinib resistance. To acquire more precise DEGs, we integrated three different microarray datasets. Functional analysis revealed that these DEGs were mainly involved in Rap1 signaling pathway, p53 signaling pathway and Ras signaling pathway. Then, top five hub genes, BIRC5, CD44, MUC1, TF, CCL5, were identified from protein-protein interaction (PPI) network. Sub-network analysis carried out by MCODE plugin revealed that key DEGs were related with PI3K-Akt signaling pathway, Rap1 signaling pathway and VEGF signaling pathway. Next, we established sunitinib-resistant OS-RC-2 and 786-O cell lines and validated the expression of five hub genes in cell lines. To further evaluate the potentials of five-gene signature for predicting clinical prognosis, we analyzed RCC patients with gene expressions and overall survival information from two independent patient datasets. The Kaplan-Meier estimated the OS of RCC patients in the low- and high risk groups according to gene expression signature. Multivariate Cox regression analysis indicated that the prognostic power of five-gene signature was independent of clinical features. In conclusion, we developed a five-gene signature which can predict sunitinib sensitivity and OS for advanced RCC patients, providing novel insights into understanding of sunitinib-resistant mechanisms and identification of RCC patients with poor prognosis. PMID- 29327493 TI - A prospective cohort study of 122 adult patients presenting to an otolaryngologist's office with globus pharyngeus. AB - OBJECTIVES: To investigate the epidemiology of globus pharyngeus in adult patients presenting to the otolaryngologist's office. Also, the predictors of persisting symptoms, prevalence of anxiety and the effect of clinical assessment were analysed. DESIGN: This was a prospective cohort study. Follow-up was carried out using a postal questionnaire. SETTING: One otolaryngologists' office comprising three medical doctors. PARTICIPANTS: A total of 122 consecutive globus patients presenting to one otolaryngology office in a 1-year period. MAIN OUTCOME MEASURES: Globus incidence, gender and age distribution, predictors of persisting symptoms and the patient's health-related concerns. RESULTS: 3.8% of first-time visits were regarding globus. The mean age was 48 years [range 20-88 years], and a female predominance was found (ratio 1.49). Eighty-four per cent experienced anxiety, mainly due to fear of cancer. The most common pathological findings were reflux (15.6%) and post-infectious inflammation (10.6%). 21.4% of questionnaire responders reported full remission of their symptoms. Three predictors regarding symptom persistence were identified: male gender (OR 1.52), smoking (OR 3.4) and difficulties in breathing (OR 8.7). Patients with concomitant foreign body sensation were less likely to have persisting symptoms (OR 0.42). No cases of malignant disease were encountered. 94.7% was reassured by the office visit. CONCLUSION: The incidence of globus is 3.8% in the otolaryngologist's office. Female gender and concomitant foreign body sensation were predictive for presenting to the clinic even if symptom remission had occurred. Male gender, smoking and self-perceived breathing difficulties were predictive for persisting symptoms. Globus is an anxiety-causing symptom, but reassurance is provided by clinical examination by the otolaryngologist. PMID- 29327494 TI - Wood's lamp examination: a novel diagnostic approach to detect Bitot's spots in vitamin A deficiency. PMID- 29327495 TI - Challenge and hindrance demands lead to employees' health and behaviours through intrinsic motivation. AB - Based on the job demand-resource theory, this study examined the differential relationships of two types of job demands, challenge and hindrance stressors, with three outcomes: ill health, organizational citizenship behaviour, and work engagement. These relationships were mediated by two personal resources: psychological empowerment and organization-based self-esteem (OBSE). Data were collected at two separate points, 2 weeks apart. With 336 full-time U.S. employees, results from path analysis indicated that the challenge stressor, workload, was positively related to psychological empowerment and OBSE, both of which were in turn positively related to good work behaviours as well as negatively related to ill health, an indication that employees experienced physical symptoms and psychological strains. In contrast, hindrance stressors (role stressors and interpersonal conflict) showed the opposite patterns of relationships with these intermediate outcomes, resulting in less empowerment and OBSE. Overall, findings suggested that psychological empowerment and OBSE were important intrinsic motivational mechanisms through which some stressors (especially hindrance demands) can promote employees' favourable work behaviours as well as alleviate the negative health outcomes. PMID- 29327496 TI - Modulation of BACE1 Activity by Chemically Modified Aptamers. AB - A modified DNA aptamer that binds BACE1, a therapeutic target involved in Alzheimer's disease has been developed. This ssXNA not only tightly binds to BACE1 but also inhibits its protease activity in vitro in the same range as a previously described unmodified aptamer. We report the in vitro selection of functional oligonucleotides incorporating two nucleobase modifications: 5 chlorouracil and 7-deazaadenine. The nucleoside analogue 5-chloro-2'-deoxyuridine has already been explored as a replacement for thymidine in a chemically modified genome of a bacterium. Thus, 5-chlorouracil modification is a good candidate to support genetic transfer in vivo as well as functional activity. PMID- 29327497 TI - Congenital central hypoventilation syndrome: Broader cognitive deficits revealed by parent controls. AB - OBJECTIVE: To investigate neurocognitive deficits in children with Congenital Central Hypoventilation Syndrome (CCHS) by comparing them to their parents, since parents comprise a particularly suitable control group matched on disease extrinsic factors that can influence neurocognitive functioning. We compared CCHS patients to their parents and to population norms, hypothesizing that they would obtain lower intelligence test scores than both groups. We also compared patient parent differences against patient-normative differences, to determine whether the two analytic approaches would yield different results. METHODS: We administered an intelligence screening, the Shipley-2, to 21 school-aged patients (age 14.2 +/- 5.5 years) with PHOX2B mutation-confirmed CCHS and their parents. Patients also received detailed clinical intellectual assessments using the Wechsler scales. RESULTS: CCHS patients scored significantly below parents on Shipley-2 indices of intelligence, vocabulary, and abstraction, with a trend for perceptual reasoning. The CCHS patients scored significantly below population norms on indices of abstraction and perceptual reasoning. Patient-parent differences were significantly larger than patient-normative differences for vocabulary scores. CCHS patients scored significantly below population norms on Wechsler indices of intelligence, perceptual reasoning, working memory, and processing speed. CONCLUSIONS: CCHS may affect a broader range of cognitive abilities than previous research based on comparisons to population norms has indicated. Comparisons of CCHS children to their parents reveal deficits of vocabulary and abstract reasoning which have not been previously identified. A full understanding of the neurocognitive impact of CCHS requires comparisons between patients and other individuals such as friends, parents, or siblings who closely resemble them on disease-extrinsic characteristics. PMID- 29327499 TI - Five-year outcome of endoscopic laser cricopharyngeal myotomy: Our experience in ten patients. PMID- 29327498 TI - Relationship style and glycaemic control in women with type 2 diabetes: The mediating role of psychological distress. AB - This study examined whether depressive symptoms and/or diabetes distress mediate the association between relationship style and glycaemic control in women with diabetes. Seventy-five women with type 2 diabetes completed the Relationship Questionnaire. Participants endorsing "secure" or "preoccupied" adult attachment were combined into the interactive relationship style and "dismissing/avoidant" or "fearful" adult attachment were combined into the independent relationship style. Glycaemic control was a latent variable composed of A1c and 48-hr continuously measured glucose. Diabetes distress was assessed with the Problem Areas in Diabetes scale and depressive symptoms with the Center for Epidemiological Studies Depression scale. A parallel multiple mediation model with relationship style as the independent variable, glycaemic control as the dependent variable, and Problem Areas in Diabetes and Center for Epidemiological Studies Depression scale as mediators, tested indirect effects. Bias-corrected bootstrap with 10,000 replications was used to construct 95% confidence intervals. The indirect association of relationship style with glycaemic control through diabetes distress was significant (effect = -0.09, p = .036, 95CI = -0.19 0.01), but through depressive symptoms was not. A model testing the indirect association of relationship style with diabetes distress through glycaemic control was not significant. Results suggest that relationship style is associated with glycaemic control through diabetes distress in women with type 2 diabetes. PMID- 29327501 TI - Corrigendum. PMID- 29327500 TI - Multiplex polymerase chain reaction detection of selected bacterial species from symptomatic and asymptomatic non-vital teeth with primary endodontic infections. AB - AIM: The aim of the present study was to investigate the presence of selective anaerobic microorganisms in primary root canal infections of symptomatic and asymptomatic non-vital teeth with periapical pathosis using multiplex polymerase chain reaction. METHODS: A total of 100 root canal samples (50 from symptomatic and 50 from asymptomatic teeth) were obtained from patients with primary endodontic infections. DNA extracted from the samples was amplified by using specific primers for the 16S rRNA gene of each bacterium, and semiquantification was done to analyze the prevalence of microorganisms and their correlation to clinical features. RESULTS: Treponema denticola (T. denticola) was present in 21 (42%) and 29 (58%) samples in the symptomatic and asymptomatic groups, respectively. Tannerella forsythia, Porphyromonas gingivalis (P. gingivalis), and Fusobacterium nucleatum (F. nucleatum) were significantly high (P < .05) in the symptomatic group, whereas Prevotella intermedia was significantly high (P < .05) in the asymptomatic group. The mean counts of T. denticola and F. nucleatum were significantly high (P < .05) in the symptomatic group. For symptoms, P. gingivalis, T. denticola, and F. nucleatum were significantly associated with clinical features. CONCLUSION: Significant differences exist in the bacterial composition between asymptomatic and symptomatic primary endodontic infections. As well as presence of pathogens, other factors, such as the phenotypic trait of bacteria and interactions among bacterial members, might play a determining role in the pathogenicity of primary endodontic infections. PMID- 29327502 TI - A differential diagnosis of a head and neck bony lesion: Review of a case series with 18 patients with extraintestinal features of familial adenomatous polyposis. PMID- 29327504 TI - Natural Deposition Strategy for Interfacial, Self-Assembled, Large-Scale, Densely Packed, Monolayer Film with Ligand-Exchanged Gold Nanorods for In Situ Surface Enhanced Raman Scattering Drug Detection. AB - Liquid interfacial self-assembly of metal nanoparticles holds great promise for its various applications, such as in tunable optical devices, plasmonics, sensors, and catalysis. However, the construction of large-area, ordered, anisotropic, nanoparticle monolayers and the acquisition of self-assembled interface films are still significant challenges. Herein, a rapid, validated method to fabricate large-scale, close-packed nanomaterials at the cyclohexane/water interface, in which hydrophilic cetyltrimethylammonium bromide coated nanoparticles and gold nanorods (AuNRs) self-assemble into densely packed 2D arrays by regulating the surface ligand and suitable inducer, is reported. Decorating AuNRs with polyvinylpyrrolidone not only extensively decreases the charge of AuNRs, but also diminishes repulsive forces. More importantly, a general, facile, novel technique to transfer an interfacial monolayer through a designed in situ reaction cell linked to a microfluidic chip is revealed. The self-assembled nanofilm can then automatically settle on the substrate and be directly detected in the reaction cell in situ by means of a portable Raman spectrometer. Moreover, a close-packed monolayer of self-assembled AuNRs provides massive, efficient hotspots to create great surface-enhanced Raman scattering (SERS) enhancement, which provides high sensitivity and reproducibility as the SERS-active substrate. Furthermore, this strategy was exploited to detect drug molecules in human urine for cyclohexane-extracted targets acting as the oil phase to form an oil/water interface. A portable Raman spectrometer was employed to detect methamphetamine down to 100 ppb levels in human urine, exhibiting excellent practicability. As a universal platform, handy tool, and fast pretreatment method with a good capability for drug detection in biological systems, this technique shows great promise for rapid, credible, and on-spot drug detection. PMID- 29327505 TI - Flexible Modulation of CO-Release Using Various Nuclearity of Metal Carbonyl Clusters on Graphene Oxide for Stroke Remediation. AB - Utilizing the size-dependent adsorption properties of ruthenium carbonyl clusters (Ru-carbon monoxide (CO)) onto graphene oxide (GO), a facile CO-release platform for in situ vasodilation as a treatment for stroke-related vascular diseases is developed. The rate and amount of formation of the CO-release-active RuII (CO)2 species can be modulated by a simple mixing procedure at room temperature. The subsequent thermally induced oxidation of RuII (CO)2 to RuO2 on the GO surface results in the release of CO. Further modulation of thermal and CO-release properties can be achieved via a hybridization of medium- and high-nuclearity of Ru-CO clusters that produces a RuO2 /RuII (CO)2 /6 Ru-CO-GO composite, where 6 Ru CO-GO provides a photothermally activated reservoir of RuII (CO)2 species and the combined infrared absorption properties of GO and RuO2 provides photothermal response for in situ CO-release. The RuO2 /RuII (CO)2 /6 Ru-CO-GO composite does not produce any cytotoxicity and the efficacy of the composite is further demonstrated in a cortical photothrombotic ischemia rat model. PMID- 29327506 TI - Next generation sequencing characterizes the extent of HLA diversity in an Argentinian registry population. AB - Next generation DNA sequencing is used to determine the HLA-A, -B, -C, -DRB1, and -DQB1 assignments of 1472 unrelated volunteers for the unrelated donor registry in Argentina. The analysis characterized all HLA exons and introns for class I alleles; at least exons 2, 3 for HLA-DRB1; and exons 2 to 6 for HLA-DQB1. Of the distinct alleles present, there are 330 class I and 98 class II. The majority (~98%) of the cumulative allele frequency at each locus is contributed by alleles that appear at a frequency of at least 1 in 1000. Fourteen (18.2%) of the 77 novel class I and II alleles carry nonsynonymous variation within their exons; 52 (75.4%) class I novel alleles carry only single, apparently random, nucleotide variation within their introns/untranslated regions. Alleles encoding protein variation not usually detected by typing focused only on the exons encoding the antigen recognition domain are 1.0% of the class I assignments and 7.3% of the class II assignments (predominantly DQB1*02:02:01, DQB1*03:19:01, and DRB1*14:54:01). Updates to the common and well documented list of alleles include 10 alleles previously thought to be uncommon but that are found at least 30 times. Five locus haplotypes estimated using the expectation-maximization algorithm as present 3 or more times total 187. While the known HLA diversity continues to increase, the conservation of known allele sequences is remarkable. Overall, the HLA diversity observed in the Argentinian population reflects its European and Native American ancestry. PMID- 29327507 TI - Rapid characterization of chlorogenic acids in Duhaldea nervosa based on ultra high-performance liquid chromatography-linear trap quadropole-Orbitrap-mass spectrometry and mass spectral trees similarity filter technique. AB - Duhaldea nervosa (Wallich ex Candolle) A. Anderberg has been traditionally used as a food spice and also in folk medicine for treating traumatic injury and relieving rheumatism, especially accelerating the healing of a fracture. However, so far as we are aware, the chemical constituents have not been fully investigated. In this study, a practical method of mass spectral trees similarity filter, a data-mining technique, was developed and evaluated for the rapid detection and identification complicated constituents based on ultra-high performance liquid chromatography-linear trap quadropole-Orbitrap-mass spectrometry. Finally, a total of 47 chlorogenic acids, including 19 monoacyl quinic acids, 22 diacyl-quinic acids, and six triacyl-quinic acids, were unambiguously or tentatively identified based on their accurate mass measurement, chromatographic retention, MSn spectra, and bibliography data. To our best knowledge, it is the first time to report the chlorogenic acids of D. nervosa, which would be beneficial for the further material basis and quality research. Meanwhile, this mass spectral trees similarity filter method could be envisioned to exhibit a wide application for the identification of complicated components from botanical extracts. PMID- 29327508 TI - Relative stability of ploidy in a marine Synechococcus across various growth conditions. AB - Marine picocyanobacteria of the genus Synechococcus are ubiquitous phototrophs in oceanic systems. Consistent with these organisms occupying vast tracts of the nutrient impoverished ocean, most marine Synechococcus so far studied are monoploid, i.e., contain a single chromosome copy. The exception is the oligoploid strain Synechococcus sp. WH7803, which on average possesses around 4 chromosome copies. Here, we set out to understand the role of resource availability (through nutrient deplete growth) and physical stressors (UV, exposure to low and high temperature) in regulating ploidy level in this strain. Using qPCR to assay ploidy status we demonstrate the relative stability of chromosome copy number in Synechococcus sp. WH7803. Such robustness in maintaining an oligoploid status even under nutrient and physical stress is indicative of a fundamental role, perhaps facilitating recombination of damaged DNA regions as a result of prolonged exposure to oxidative stress, or allowing added flexibility in gene expression via possessing multiple alleles. PMID- 29327503 TI - Noncoding RNAs in Alzheimer's disease. AB - Alzheimer's disease (AD) is a progressive neurodegenerative disorder and the main cause of dementia among the elderly worldwide. Despite intense efforts to develop drugs for preventing and treating AD, no effective therapies are available as yet, posing a growing burden at the personal, medical, and socioeconomic levels. AD is characterized by the production and aggregation of amyloid beta (Abeta) peptides derived from amyloid precursor protein (APP), the presence of hyperphosphorylated microtubule-associated protein Tau (MAPT), and chronic inflammation leading to neuronal loss. Abeta accumulation and hyperphosphorylated Tau are responsible for the main histopathological features of AD, Abeta plaques, and neurofibrillary tangles (NFTs), respectively. However, the full spectrum of molecular factors that contribute to AD pathogenesis is not known. Noncoding (nc)RNAs, including microRNAs (miRNAs), long noncoding RNAs (lncRNAs), and circular RNAs (circRNAs), regulate gene expression at the transcriptional and posttranscriptional levels in various diseases, serving as biomarkers and potential therapeutic targets. There is rising recognition that ncRNAs have been implicated in both the onset and pathogenesis of AD. Here, we review the ncRNAs implicated posttranscriptionally in the main AD pathways and discuss the growing interest in targeting regulatory ncRNAs therapeutically to combat AD pathology. WIREs RNA 2018, 9:e1463. doi: 10.1002/wrna.1463 This article is categorized under: RNA in Disease and Development > RNA in Disease. PMID- 29327509 TI - Proteomic expression profile of injured rat peripheral nerves revealed biological networks and processes associated with nerve regeneration. AB - Peripheral nerve regeneration is regulated through the coordinated spatio temporal activation of multiple cellular pathways. In this work, an integrated proteomics and bioinformatics approach was employed to identify differentially expressed proteins at the injury-site of rat sciatic nerve at 20 days after damage. By a label-free liquid chromatography mass-spectrometry (LC-MS/MS) approach, we identified 201 differentially proteins that were assigned to specific canonical and disease and function pathways. These include proteins involved in cytoskeleton signaling and remodeling, acute phase response, and cellular metabolism. Metabolic proteins were significantly modulated after nerve injury to support a specific metabolic demand. In particular, we identified a group of proteins involved in lipid uptake and lipid storage metabolism. Immunofluorescent staining for acyl-CoA diacylglycerol acyltransferase 1 (DGAT1) and DAGT2 expression provided evidence for the expression and localization of these two isoforms in Schwann cells at the injury site in the sciatic nerve. This further supports a specific local regulation of lipid metabolism in peripheral nerve after damage. PMID- 29327511 TI - Cp2 TiX Complexes for Sustainable Catalysis in Single-Electron Steps. AB - We present a combined electrochemical, kinetic, and synthetic study with a novel and easily accessible class of titanocene catalysts for catalysis in single electron steps. The tailoring of the electronic properties of our Cp2 TiX catalysts that are prepared in situ from readily available Cp2 TiX2 is achieved by varying the anionic ligand X. Of the complexes investigated, Cp2 TiOMs proved to be either equal or substantially superior to the best catalysts developed earlier. The kinetic and thermodynamic properties pertinent to catalysis have been determined. They allow a mechanistic understanding of the subtle interplay of properties required for an efficient oxidative addition and reduction. Therefore, our study highlights that efficient catalysts do not require the elaborate covalent modification of the cyclopentadienyl ligands. PMID- 29327512 TI - Mental disorder: Are we moving away from distress and disability? AB - The first time that formally a definition of mental disorder was presented was in DSM-III. This resulted from a complex conceptual analysis carried out by Spitzer, chair of the committee on nomenclature and statistics. The criteria of harm (distress-disability) arise as main defining characteristics for mental illness, being added that "there is an inference" that there is a dysfunction. The distress-disability model was later developed by Wakefield. This author argued that in a medical or psychiatric disorder there had to be a dysfunctional component (value free) and another one of harm (value laden). In this article, we intend to review the emergence and evolution of the definition of mental disorder and the importance that the criteria of distress and disability always had in this definition. This happened until the advent of DSM-5 when these criteria came to play a secondary role. PMID- 29327510 TI - ZmSTK1 and ZmSTK2, encoding receptor-like cytoplasmic kinase, are involved in maize pollen development with additive effect. AB - Pollen germination and pollen tube growth are important physiological processes of sexual reproduction of plants and also are involved in signal transduction. Our previous study reveals that ZmSTK1 and ZmSTK2 are two receptor-like cytoplasmic kinases (RLCK) homologs in Zea mays as members of receptor-like protein kinase (RLK) subfamily, sharing 86% identity at the amino acid level. Here, we report that ZmSTK1 and ZmSTK2, expressed at late stages of pollen development, regulate maize pollen development with additive effect. ZmSTK1 or ZmSTK2 mutation exhibited severe pollen transmission deficiency, which thus influenced pollen fertility. Moreover, the kinase domains of ZmSTKs were cross interacted with C-terminus of enolases detected by co-immunoprecipitation (Co-IP) and yeast two-hybrid system (Y2H), respectively. Further, the detective ZmSTK1 or ZmSTK2 was associated with decreased activity of enolases and also reduced downstream metabolite contents, which enolases are involved in glycolytic pathway, such as phosphoenolpyruvate (PEP), pyruvate, ADP/ATP, starch, glucose, sucrose and fructose. This study reveals that ZmSTK1 and ZmSTK2 regulate maize pollen development and indirectly participate in glycolytic pathway. PMID- 29327513 TI - Methanol-Water Aqueous-Phase Reforming with the Assistance of Dehydrogenases at Near-Room Temperature. AB - As an excellent hydrogen-storage medium, methanol has many advantages, such as high hydrogen content (12.6 wt %), low cost, and availability from biomass or photocatalysis. However, conventional methanol-water reforming usually proceeds at high temperatures. In this research, we successfully designed a new effective strategy to generate hydrogen from methanol at near-room temperature. The strategy involved two main processes: CH3 OH->HCOOH->H2 and NADH->HCOOH->H2 . The first process (CH3 OH->HCOOH->H2 ) was performed by an alcohol dehydrogenase (ADH), an aldehyde dehydrogenase (ALDH), and an Ir catalyst. The second procedure (NADH->HCOOH->H2 ) was performed by formate dehydrogenase (FDH) and the Ir catalyst. The Ir catalyst used was a previously reported polymer complex catalyst [Cp*IrCl2 (ppy); Cp*=pentamethylcyclopentadienyl, ppy=polypyrrole] with high catalytic activity for the decomposition of formic acid at room temperature and is compatible with enzymes, coenzymes, and poisoning chemicals. Our results revealed that the optimum hydrogen generation rate could reach up to 17.8 MUmol h 1 gcat-1 under weak basic conditions at 30 degrees C. This will have high impact on hydrogen storage, production, and applications and should also provide new inspiration for hydrogen generation from methanol. PMID- 29327515 TI - Myocardial Dysfunction in Sepsis and Septic Shock. PMID- 29327514 TI - Evolution of radical resection for perihilar cholangiocarcinoma. PMID- 29327516 TI - Cardiac Biomarkers and Myocardial Dysfunction in Septicemia. AB - Objectives: Cardiac biomarkers have been studied in sepsis in the past and various mechanisms for their rise have been elucidated. However their association with severity of sepsis, mortality and myocardial dysfunction warrants further studies. We have studied three different cardiac biomarkers- troponin T (trop T), creatine phosphokinase MB isoform (CPK MB) and NT pro brain natriuretic peptide (NT Pro BNP) in patients with septicemia. We have attempted to observe the levels of these biomarkers in sepsis, their individual abilities to predict the severity of sepsis, mortality and association with myocardial dysfunction noted in echocardiography. Results: There were 54 patients each of septicaemia and controls. The means of the three biomarkers, namely Troponin T, CPK MB and NT Pro BNP, were significantly elevated in patients with sepsis- mean values of 0.23+/ 0.8 ng/ml, 9.9+/-13.4 ng/ml and 5988.62+/-13.7 pg/ml respectively. Myocardial dysfunction was observed in 27 cases. There were 13 non-survivors. Troponin T and NT pro BNP were strongly associated with higher mortality. CPK MB had better correlation with myocardial dysfunction. Conclusion: We conclude that myocardial dysfunction using echocardiography is seen in around half of the patients with sepsis. Cardiac biomarkers can be routinely used in patients of septicemia to suggest the severity of sepsis,to detect myocardial injury and dysfunction and prognostication. CPK MB may be very useful to suspect myocardial dysfunction in such patients. PMID- 29327517 TI - Sheehan's Syndrome-The Most Common Cause of Panhypopituitarism at Moderate Altitude: A Sub-Himalayan Study. AB - Background: Panhypopituitarism is a rare disorder with varied clinical presentation having various etiologies. Sheehan's syndrome (SS) is decreasing in frequency worldwide and is a rare cause of panhypopituitarism in developed nations. Methodology: A retrospective study done between May 2011 and May 2015 in tertiary care hospital. We reviewed the records of patients with hypopituitarism. Clinical features, hormonal profile and radiological investigations noted. Results: Total 14 patients of panhypopituitarism included with average duration of symptoms 1.93+/- 1.96 years. four (28.57%) were males and ten (71.43%) were females with mean age of diagnosis 37.78+/- 13.68 years. Sheehan's syndrome (SS) was the most common cause of panhypopituitarism in 57.14%(8 patients), followed by post surgery in 14.28% (2 patients). 80% of women had SS with a mean duration of symptoms 2.39+/-1.54 years. Conclusion: Sheehan's syndrome is not uncommon in developing countries, High degree of clinical suspicion is desired as clinical features are most often subtle. PMID- 29327518 TI - A Study of Cardiovascular Abnormalities in HIV Positive Patients in a Tertiary Care Hospital in Northern India. AB - Introduction: Cardiovascular illness is common in patients with HIV infection, particularly in the later course of disease. Cardiovascular abnormalities in people living with HIV disease (PLHIV) often go unrecognized or untreated resulting in increased cardiovascular related morbidity and mortality and reduced quality of life. The prevalence of cardiac involvement in PLHIV has been reported to range between 28 to 73%. However, the incidence of symptomatic heart failure in HIV positive patients is 8-10%. Aims and Objectives: The present study had been undertaken to study the prevalence of cardiovascular manifestation in HIV positive patients in north Indian population and its association with HAART, CD4 count and WHO stages of the disease. Material and Methods: This study was conducted in the department of Medicine, KGMU, Lucknow. A total of 75 HIV positive patients of age >15 years, admitted to the hospital were enrolled, out of which 32 were on ART. The cardiovascular evaluation in the form of chest x ray, ECG, 2D echocardiography and NT-ProBNP was done and their correlations with CD4 count was studied. Two rheumatic heart disease patients were excluded during analysis. Results: Cardiovascular manifestations were found in around 52.1% of HIV positive patients. Chest x-ray showed cardiomegaly in 8 out of 73 patients. ECG abnormalities were found in 49.3% while 2 D echocardiography was abnormal in 52.1% of the patients. Though NT-Pro BNP was abnormal in 26.7% of the patients, no statistical correlation was found with CD4 counts. Conclusion: The prevalence of cardiovascular abnormalities in our study population was 52.1%. Our study did not show any statistical correlation with CD4 counts but showed correlation with the WHO clinical staging of the disease. We suggest a study with larger sample size to see the exact prevalence of cardiovascular disease in HIV positive patients. PMID- 29327519 TI - Psychiatric Co-morbidities in Women with Epilepsy. AB - Background: The co-existence of psychiatric co-morbidities with Epilepsy in women is multifactorial and complex, being closely related to hormonal status, medication side effects, and psychosocial factors. Aims: We aimed to study associated Psychiatric co-morbidities in women with Epilepsy (WWE), and correlate the same with seizure subtype and medication , compliance with treatment and seizure control. Material and Methods: This was a prospective, interview based study in OPD over 18 months, evaluating WWE over 13 years of age with at least 1 seizure in the last 1 year. The primary outcome evaluated was the psychiatric diagnosis. Covariables assessed included sociodemographic data, details of seizures and treatment taken. Study population included 143 WWE. Thirty women with a chronic disease, viz., Diabetes and with no h/o seizures, and another group of 25 healthy women from the community with no seizures ever and no Diabetes, were evaluated as 2 sets of controls. Results and Conclusions: One hundred and forty three women with Epilepsy (WWE) were recruited into the study. Psychiatric co-morbidity prevalence was 28.6 % (41/143) in WWE, 13.7 % in women with Diabetes and 8.3 % in women with no Epilepsy or Diabetes (normal controls). Overall, Depression was the commonest psychiatric co-morbidity. Psychiatric co morbidity was significantly more in WWE as compared to normal controls. Seizure duration over 2 years, complex partial seizures and Polypharmacy were significantly linked to Psychiatric co-morbidities. PMID- 29327520 TI - Risk Factors of Clinical and Immunological Failure in South Indian Cohort on Generic Antiretroviral Therapy. AB - Background: Since the time of NACO Antiretroviral (ART) roll-out, generic ART has been the mainstay of therapy. There are many studies documenting the efficacy of generic ART but with the passage of time, failure of therapy is on the rise. As institution of second line ART has significant financial implications both for a program and for an individual it is imperative that we determine factors which contribute towards treatment failure in a cohort of patients on generic antiretroviral therapy. Methodology: This was a nested matched case-control study assessing the predictors for treatment failure in our cohort who had been on Anti retroviral therapy for at least a year. We identified 42 patients (Cases) with documented treatment failure out of our cohort of 823 patients and 42 sex, age and duration of therapy-matched controls. Using a structured proforma, we collected information from the out-patient and in-patient charts of the Infectious Diseases clinic Cohort in CMC, Vellore. A set of predetermined variables were studied as potential risk factors for treatment failure on ART. Results: Univariate analysis showed significant association with 1) Self-reported nonadherence<95% [OR 12.81 (95%CI 1.54-281.45)]. 2) Treatment interruptions in adherent cases (OR 9.56 (95% CI 1.11-213.35)]. 3) Past inappropriate therapies [OR 9.65 (95% CI 1.12-215.94)]. 4) Diarrhoea [OR 16.40 (95% CI 2.02-3.55.960]. 5) GI opportunistic infections (OR 11.06 (95% CI 1.31 -244.27)] and 6) Drug Toxicity [OR 3.69 (95% CI 1.15-12.35).In multiple logistic regression analysis, we found independent risk factors of treatment failure to be: Self-reported non-adherence (<95%) with OR 15.46(95%CI 1.55 - 154.08), drug toxicity - OR 4.13(95%CI 1.095 - 15.534) and history of diarrhoea - OR 23.446(95%CI 2.572 - 213.70). Conclusion: This study reveals that besides adherence to therapy, presence of diarrhoea and occurrence of drug toxicity are significant risk factors associated with failure of anti-retroviral therapy. There is a need for further prospective studies to assess their role in development of treatment failure on ART and thus help development of targeted interventions. PMID- 29327521 TI - Cerebrospinal Fluid - A Clinicopathologic Analysis. AB - Context and Objective: This study aims to emphasize the importance of an appropriate CSF examination in patients of suspected CNS disease and the necessity of correlating it with the clinico-radiologic findings which will help in early diagnosis of CNS diseases and guide the further management of the disease. Design: In this 2 year study, 215 CSF samples from patients with clinically suspected diseases of the CNS were studied. The CSF samples were analyzed for gross examination, protein, sugar, adenosine deaminase (ADA) levels, microscopic examination and microbiologic examination. Culture was performed an all cases. A cytospin examination was done where malignancy (primary/metastasis) was suspected. Results: Of the 215 samples analyzed, 97(45.1%) were found to have abnormal CSF findings. The maximum number of abnormal CSF samples were seen in the adolescents and adults (56.7%) age group. Very high protein levels were seen with bacterial, tuberculous and parasitic meningitis whereas fungal and viral meningitis showed moderate elevation of proteins. CSF ADA levels were raised in cases of tuberculous meningitis with mean value of 20.9 IU/L whereas all other types of meningitis showed normal level of ADA. A total of 3 cases of IVH and 2 cases of demyelinating disease were found in our study. Malignant cells were detected in two cases. Conclusion: Thus, a study of CSF is vital as it provides an invaluable diagnostic window to the central nervous system atmosphere. A timely and appropriate analysis of CSF can help the clinician to direct the line of treatment and enhance patient care as well as reduce morbidity and mortality. PMID- 29327522 TI - Clinical Profile and Outcome of Pregnant Patients with Acute HEV Hepatitis During Water Borne Epidemic in Himachal Pradesh: A Hospital Based Study. AB - Background: Recent outbreak of HEV hepatitis epidemic in Himachal Pradesh in Shimla caused significant morbidity and mortality especially among pregnant patients. Overall mortality is 0.5- 4% in patients developing acute hepatic failure (ALF) and is significantly higher in pregnant patients (20%). Present study conducted to observe clinical profile and outcome in pregnant patients. Methodology: this is a retrospective observational study done on admitted pregnant and post partum patients with acute HEV hepatitis during 3 months periods. History focussing on symptoms, duration, onset, progression, co morbidities, pregnancy outcome, complications noted. Confirmation of the HEV infection was done using HEV IgM ELISA. Results: Total 26 patients observed, among which 8 were pregnant and 18 were post partum Average age of presentation was 26.11+/-3.7 years and average duration of hospital stay 10.46 days. 8 (30.76%) patients required ICU care Presenting complaints were similar to typical presentation in viral hepatitis. All patients were icteric at presentation and 8 (30.76%) patients had hepatic encephalopathy (HE) and 8 (30.76%) patients had ALF, 20 (76.92%) sepsis and 7(26.92%) underwent preterm labour. Out of the total 14 patients who delivered, poor fetal outcome was seen in 5 patients died during this period (15.38%). Factors responsible for in hospital mortality were altered mental status at presentation (p0.018), edema (p 0.046), HE(0.018), acute liver failure(0.018). Conclusion: HEV infection has more morbidity and mortality among pregnant females and poor fetal outcome. Mortality is high (15.38%). Altered mental status at presentation, edema, HE, ALF have significant correlation (<0.05) with the mortality. PMID- 29327523 TI - Association of Physicians of India: Position Statement on Role of Chirally Pure Molecules in Clinical Practice. AB - Chirally pure molecules or enantiomers are non-superimposable mirror images of each other with a chiral center (such as carbon, sulphur, nitrogen or phosphorous atom). An equimolar mixture of enantiomers forms a racemate. Chirally pure molecules (single enantiomers) are important in the field of drug discovery as the drug targets such as enzymes and receptors are enantioselective in nature. Clinical studies have demonstrated that chirally pure drugs exhibit different pharmacokinetic and metabolic profiles, reduced adverse events, improved safety profiles and similar therapeutic activity at lowered drug dosage as compared with the racemate in many therapeutic areas. However, since there is a low level of awareness on the advantages of chirally pure molecules among clinicians, pharmacists and patients in India, the Association of Physicians of India (API) developed this position statement to increase awareness on the concept of chirality and the associated advantages of using chirally pure drugs in certain therapeutic areas to maximize patient outcomes. This includes the clinical evidence associated with single enantiomers such as S-metoprolol, S-amlodipine, esomeprazole, escitalopram, levobupivacaine, cisatracurium, S-etodolac, dexketoprofen, levofloxacin in terms of efficacy and safety as compared with their racemates. In addition, the API also provides some tactical recommendations for clinicians, pharmacists, patients, regulatory body and pharmaceutical companies to increase awareness on chirally pure drugs and puts forth the need for expedited availability of chirally pure drugs in the Indian market. PMID- 29327525 TI - Drug Abuse as an Emanating Risk for Stroke in Young Adults. AB - Drug abuse is a substantial risk factor for stroke among patients under 45 years of age and ranks second among the most commonly identified potential risk factors. Drug abusers aged 15 to 44 years are 6.5 times more likely to have a stroke than non drug users. Stroke occurring in persons under 45 years of age accounts for only 4% of all strokes but causes an enormous toll in personal suffering, lost productivity, and health care costs. PMID- 29327524 TI - Uttar Pradesh Association of Physicians of India Position Statement: Tobacco Use and Metabolic Syndrome. AB - Tobacco use is one of the main preventable causes of mortality and morbidity worldwide. The global disease burden due to tobacco use is huge with projected mortality of eight million lives per year by 2030. Metabolic syndrome (MS) is defined as a constellation of cardiovascular and endocrine risk factors such as insulin resistance, obesity, raised blood pressure, and abnormal lipid profile. The relationship between tobacco use and MS has been well established. Also, the causal association between tobacco use and development of individual components of MS is well established. The Uttar Pradesh Association of Physicians of India (UP API) has drafted this position statement on managing tobacco use among persons with or at risk of developing Metabolic Syndrome (MS). This position statement presents evidence-based recommendations as described below. Scope and purpose The objective of this position statement is to offer clinical recommendations for screening, diagnosis and management of tobacco use among persons with or at risk of developing Metabolic Syndrome (MS). The purpose of this document is to aid in identification and treatment of maladaptive patterns of tobacco use i.e. tobacco use disorder (tobacco dependence, harmful use, abuse) in person with or at risk of developing MS. Intended Audience The position statement is targeted at the clinicians engaged in care and management of person with or at risk of developing Metabolic Syndrome (MS). This might also be of relevance to the policy makers considering the public health burden of both MS and tobacco use disorders. PMID- 29327526 TI - Dengue-Induced Hepatic Injury. AB - Dengue has a significant impact on the disease burden in the population residing in tropical countries. It is transmitted by the bite of Aedes mosquito. The virus have got some hepatotoxic effects. Most of the cases are asymptomatic. However, it should be considered as one of the causes of Acute Liver Failure in endemic countries. Our article focuses on the pathogenesis, manifestations, investigations and, the treatment options for dengue related hepatic dysfunction. PMID- 29327527 TI - Role and Relevance of Blood Pressure Variability in Hypertension Related Co morbidities. AB - Despite maintaining mean blood pressure at optimal levels, cardiovascular complications still occur in hypertensive patients. Blood pressure variability (BPV) has been implicated as a prominent factor responsible for incurring this additional risk. In this review we attempted to generate a consensus on the importance of BPV in the hypertension management and to evaluate different therapeutic options available to reduce BPV. Panel comprising of 11 leading experts from India in different areas of clinical practice (including nephrology, diabetes and endocrinology, cardiology, and critical care medicine) was convened. The board reviewed up to date literature on BPV, shared personal experiences from their clinical practice, and debated their opinions on the significance of BPV in hypertension management and also on various therapeutic options available to control it. The reviewers agreed that BPV is frequently observed in hypertensive individuals and it is a critical factor in hypertension management. Blood pressure variability can be measured by ambulatory blood pressure monitoring, home blood pressure monitoring, and office blood pressure monitoring. Members concurred that variations in blood pressure that are 10 standard deviations above the mean blood pressure should be considered as pathologically significant and such variations should be reduced using pharmacological therapies. The board opined that Angiotensin II Receptor Blockers,Calcium Channel Blockers etc such as Olmesartan, Nifedipine can be used to reduce BPV. As a way forward, the panel recommends to bridge the evidence gap that establishes a possible direct relationship between BPV and cardiovascular complications. Blood pressure variability has paramount role in the current hypertension management scenario. To reduce disease burden and increase quality of life of hypertensive individuals, physicians should consider lowering BPV along with physiological BP levels. PMID- 29327528 TI - MDCT Depiction of Spontaneous Rupture of Hepatic Hydatid Cyst with Peritoneal Hydatidosis. PMID- 29327529 TI - Unusual Empyema. PMID- 29327530 TI - Splenic Abscess Caused by Salmonella Typhi and Co-Infection with Leptospira. AB - Splenic abscesses caused by Salmonella typhi are a very rare complication of typhoid fever in this era of use of specific antibiotics. Co-infection with Leptospira in such a patient is even rarer. Clinical diagnosis of splenic abscess caused by Salmonella is difficult owing to its rarity, being insidious in onset and having nonspecific clinical presentation. Splenic abscesses are potentially fatal complication of typhoid fever. In most of these patients, hemoglobinopathies or some other underlying immunocompromised state is usually present. We report a case of splenic abscess, caused by Salmonella typhi, and co infection with Leptospira in a previously healthy young male. PMID- 29327531 TI - Isolated Pancreatic Tuberculosis in an Immunocompetent Host. AB - Despite the high prevalence of tuberculosis (TB) worldwide, pancreatic TB is rare. When present, pancreatic TB is frequently associated with miliary TB, often in immunocompromised hosts. Pancreatic TB may present as a pancreatic abscess, acute or chronic pancreatitis, and cystic or solid pancreatic masses. This is a case of isolated Tubecular infection of the pancreas in an immunocompetent patient, who presented with a discrete pancreatic abscess, and was subsequently diagnosed with isolated pancreatic TB. This case suggests that clinicians should have a heightened suspicion of pancreatic TB when faced with discrete pancreatic lesions, especially in patients from areas where the infection is endemic. Such recognition may lead to appropriate diagnostic testing, and possible resolution of pancreatic lesions with antitubercular therapy. PMID- 29327532 TI - Adrenal Oncocytoma - A Rare Functional Tumor Presenting as Cushing Syndrome. AB - Adrenal oncocytoma is very rare pathological variant of adrenal neoplasm. These are usually large and non-functional; however, rarely functional adrenal oncocytomas are also presented as Cushing's syndrome and pheochromocytoma. We report a case of adrenal oncocytoma in 38 year old female presented with symptoms of Cushing Syndrome. PMID- 29327533 TI - Post-transplant Lymphoproliferative Disorder. AB - Post-transplant lymphoproliferative disorders (PTLDs) are life-threatening complications of solid-organ transplantation and bone marrow transplantation leading to a high mortality. PTLD represents a heterogeneous group of lymphoproliferative diseases. They become clinically relevant because of the expansion of transplantation medicine together with the development of potent immunosuppressive drugs associated now with long survival. The risk of PTLD is highest in the early post-transplant period, but the cumulative risk increases with time. We report a case of two sequential malignancies - carcinoma bladder occurring -13 years and now gastric lymphoma -15 after renal transplantation in a 73-year-old man. PMID- 29327534 TI - Gastric Angioinvasive Mucormycosis in Immunocompetent Adult, A Rare Occurrence. AB - Mucormycosis is a rare, opportunistic fungal infection that occurs almost exclusively in immunocompromised hosts such as patients with diabetes mellitus, leukemia, lymphoma, renal disease, septicemia, burns, malnutrition, and following long-term treatment with steroids and antibiotics. Based on the clinical presentation and involvement, mucormycosis is classified as six major forms, namely, rhinocerebral, pulmonary, cutaneous, gastrointestinal (GI), disseminated and miscellaneous, with rhinocerebral and pulmonary being the common forms. GI mucormycosis is rare, accounting for only 7% of all cases; however, the mortality rate is as high as 85%. Here we report a case of a young immunocompetent male who developed gastric invasive mucormycosis during an acute illness and succumbed to it despite all supportive care. PMID- 29327536 TI - Medical Symbols: Part-2. PMID- 29327535 TI - Catheter Assisted Management of Massive Pulmonary Embolism. AB - Pulmonary thromboembolism is common and missed by clinicians. We report a case of massive pulmonary embolism which was life threatening treated by the catheter assisted technique. Anticoagulation is the mainstay of therapy for most patients, with thrombolytic therapy reserved for some patients.1 Recent studies have suggested a role for systemic or catheter-directed thrombolytic therapy in selected patients.2 We present a case of a patient who presented with an PE, was successfully treated with catheter-directed thrombolysis. PMID- 29327538 TI - Angiotensin-converting Enzyme (ACE) Inhibitor Induced Macroglossia. PMID- 29327537 TI - Can Forced Expiratory Time be Used as a Supportive Tool in the Diagnosis of COPD ? PMID- 29327539 TI - [Surgical treatment of severe elbow injuries]. PMID- 29327540 TI - [Analysis on the effect of surgical cleaning combined with external fixator for the treatment of post-traumatic heterotopic ossification of elbow joint]. AB - OBJECTIVE: To evaluate the clinical efficacy of surgical treatment using a combined medial and lateral approach combined with an external fixator for the treatment of post-traumatic heterotopic ossification(HO) in patients with stiff elbow joints. METHODS: Surgical release using the combined medial and lateral approach combined with external fixation for the treatment of HO and elbow stiffness in 26 patients from July 2010 to December 2013. The study group included 18 males and 8 females, with an average age 38.7 years (ranged 14 to 60 years). The time from injury to surgery averaged 9.3 (ranged 7 to 18) months. Before and after operation, the elbow range of motion and forearm rotation angle were measured, and the Mayo Elbow Performance Score (MEPS) was evaluated. RESULTS: The wound of all patients was well healed during the first period, except one patient who had chronic infection at the external fixation pin 3 weeks after operation. Then the external fixator was removed. All 26 patients were followed up, and the during ranged from 24 to 40 months, with an average of 34 months. HO recurrence occurred in 1 patient 8 months after operation. The range of motion, forearm rotation angle, and Mayo Elbow Performance Score of elbow joint in patients was significantly improved compared with that before surgery(P<0.05). CONCLUSIONS: Surgical release using the combined medial and lateral approach combined with an external fixator for the treatment of traumatic HO and elbow stiffness can effectively improve elbow function, resulting in a satisfactory effect. PMID- 29327541 TI - [Mini-locking plates for the treatment of Regan-Morrey type III fracture of ulnar coronoid process through anterior approach of elbow joint]. AB - OBJECTIVE: To explore clinical effects of mini-locking plates for the treatment of Regan-Morrey type III fractures of ulnar coronoid process through an anterior approach of elbow joint. METHODS: A retrospective analysis on 12 patients with Regan-Morrey type III fractures of the ulnar coronoid process was performed from January 2011 to June 2014, who were treated with unini-locking plates through the anterior approach of elbow joint. There were 7 males and 5 females, ranging in age from 23 to 65 years old, averaged 43 years old. Four patients had fractures on the left and 8 patients had fractures on the right. The X-ray films were taken to evaluate the location and healing of the fracture before and after operation. Clinical evaluation included analysis on surgical complications, range of motion and Mayo elbow function score. All the patients were treated with mini-locking plates, and the elbow joint was stable after operation. RESULTS: All the patients were followed up, and the duration ranged from 14 to 36 months. All the fractures were healed, and the healing time ranged from 12 to 20 weeks. The average healing time was 15.6 weeks. There were no complications occurred such as heterotopic ossification, traumatic arthritis and others. At the latest follow-up, the average angle of elbow flexion was (127.0+/-5.6) degrees (120 degrees to 135 degrees ); the average extension angle was(4.2+/-4.5) degrees (0 degrees to 10 degrees ); the average pronation angle of forearm was (86.0+/-6.1) degrees (75 degrees to 90 degrees ); the average supination angle of forearm was (87.0+/ 6.9) degrees (80 degrees to 100 degrees ). Mayo elbow function score was 80 to 96 points, with an average of 88 points, of which 2 cases got an excellent result, 10 good. CONCLUSIONS: Elbow anterior approach can clearly expose the Regan-Morrey type III coronoid fractures, and mini-locking plate fixation has a satisfactory effect. PMID- 29327542 TI - [Treatment of coronal shear fracture of the distal end of the humerus by the olecranon osteotomy approach]. AB - OBJECTIVE: To explore the effectiveness of olecranon osteotomy approach for the treatment of coronal shear fracture of the distal end of the humerus. METHODS: A retrospective analysis was made on the clinical data of 34 patients with the coronal shear fracture of the distal end of the humerus treated by the olecranon osteotomy approach from January 2005 to January 2013. Of 34 cases, there were 15 boys and 19 girls, aged from 17 years to 84 years (mean, 54.9+/-10.2 years); 18 patients had fractures on the left and 16 patients had fractures on the right. Fractures were classified according to the Bryan and Morrey classification united Mckee classification: type Iinjuries occurred in 10 cases, type IIinjuries in 5 cases, type III injuries in 10 cases and type IV injuries in 9 cases. The Mayo elbow functional scores were evaluated for analysis. RESULTS: All the patients were followed up, and the duration ranged from 15 to 96 months, with a mean of (35.1+/-7.2) months. Average arc of motion was (132.1+/-11.2) degrees in flexion and (4.6+/-1.9) degrees in extension. The average Mayo score was 85.9+/-6.3(73 to 94 scores). Thirteen patients got an excellent result, 15 good and 6 poor. The average Mayo score was 88.6+/-3.7 in type Iinjuries, 85.8+/-4.6 in type IIinjuries, 81.8+/-5.8 in type III injuries and 87.5+/-9.1 in type IV injuries. There were no significant differences in outcomes. CONCLUSIONS: The treatment for the coronal shear fracture of the distal end of the humerus by the olecranon osteotomy approach can achieve the satisfactory curative effect, maintain the reduction and improve the elbow function. PMID- 29327543 TI - [Management of displaced radial neck fractures in children: elastic stable intramedullary nailing vs K-wire fixation]. AB - OBJECTIVE: To compare the complications and clinical outcome of titanium elastic nail(TEN) versus K-wire fixation(KW) for the treatment of displaced radial neck fractures in children. METHODS: From January 2009 to December 2014, 56 children with displaced radial neck fractures were studied retrospectively according to the inclusion criteria. Based on the different methods of internal fixation, patients were divided into two groups: titanium elastic nail (TEN group) and K wire fixation (KW group). Among 25 patients(15 males and 11 females, aged from 3 to 12 years old with an average of 8.6+/-2.1) treated with TEN, 16 patients had type III fractures, 19 patients had type IV fractures according to Metaizeau Judet modified classification; 20 patients were treated with closed reduction and 5 patients were treated with open reduction; the time from injury to treatment ranged from 1 to 8 days with an average of (3.6+/-1.7) days. Among 31 patients (20 males and 11 females, aged from 3 to 11 years old with an average of 9.1+/ 1.9 years old) treated with KW, 19 patients had type III fractures, 12 patients had type IV fractures; 22 patients were treated with closed reduction, and 9 patients were treated with open reduction; the time from injury to treatment ranged from 2 to 7 days with an average of (3.7+/-1.5) days. No significant differences between two groups were found in general data. Operative time, hospitalization time, healing time of fracture, internal fixation time, postoperative complications and function recovery of the two groups were compared and evaluated. RESULTS: The average follow-up period of the patients was 22.1 months in TEN group(ranged, 16 to 48 months), and 21.9 months in KW group(ranged, 13 to 48 months). There were no significant differences between these 2 groups in follow-up duration, average hospitalization time and fracture healing time. The operation time, hospital costs and internal fixation time in TEN group were (56.6+/-11.8) min, (18 000+/-3 000) Yuan(RMB), (9.1+/-2.5) weeks respectively; and in KW group were(45.5+/-10.3) min, (8 000+/-1 000) Yuan(RMB), (4.8+/-1.6) weeks respectively, there were significant differences between two groups(P<0.05). Outcome scores according to Metaizeau and Tibone-Stoltz had no significant differences between two groups(P>0.05). CONCLUSIONS: There is no significant difference of therapeutic effects between TEN and KW for children with displaced radial neck fractures. Because the removal of TEN fixation requires the secondary anesthesia, and the TEN costs significantly more than KW, TEN still can't replace the traditional KW for the treatment of radial neck fracture in children. PMID- 29327544 TI - [Clinical outcome of arthroscopic anterior cruciate ligament remnant-preserving reconstruction]. AB - OBJECTIVE: To evaluate the clinical outcome of arthroscopic anterior cruciate ligament(ACL)reconstruction with remnant cuff preservation. METHODS: There were 42 cases of ACL tear were performed reconstruction in our department from January 2012 to December 2014. The patients were 28.4 years old on average, 17 males and 25 females. ACL reconstruction was performed under arthroscopy with remnant cuff preservation. The stability of knee was assessed by Lachman test and anterior drawer test. The function of knee was assessed through Lysholm score and Tegner activity rating. MRI of the knee was checked 12 months postoperatively. RESULTS: The stability tests of all patients were negative postoperatively. Lysholm score of all patients 12 months after operation was 96.8+/-6.1, which was significantly better than 37.8+/-7.1 of preoperatively. Tegner activity rating of all patients 12 months after operation was 6.2+/-0.9, which was significantly better than 2.1+/-0.4 of preoperatively. It showed the grafts were very well in MRI 12 months after operation. CONCLUSIONS: Arthroscopic anterior cruciate ligament remnant preserving reconstruction could restore the stability of knee. PMID- 29327545 TI - [Study on therapeutic effects of arthroscopic repair on medial patellar retinaculum acute injury]. AB - OBJECTIVE: To accurately define the injury position of medial patellar retinaculum with acute injury under the guiding of high frequency ultrasonography, and to study therapeutic effects of suture operation on medial patellar retinaculum in the injuried position. METHODS: From June 2009 to March 2014, there were 17 patients with acute patellar dislocation, 6 males and 11 females with average age of (16.2+/-6.2) years old. The duration time of patellar dislocation was 2 weeks. Before operation, the medial patellar retinaculum of all patients were examined with the high frequency ultrasonography, and the skin with the non-continuous fiber was iudicated as the surface mark under the high frequency ultrasonography. The injury position of medial retinaculum was in the middle of 5 patients who were treated with suture operation of arthroscopic medial retinaculum. The injury position was in the patellar edge in 12 patients who were treated with fixing bone anchor on patella and arthroscopic suture operation of medial retinaculum. The CT examination and Kujala scores, patellar tilt angle on CT film, measured maximal angles of passive or active knee flexion and apprehension test were observed before treatment and postoperative 18 months. RESULTS: Eighteen months after treatment, Kujala scores were 92.2+/-11.1 and patellar tilt angle were(11.5+/-4.2) degrees , and there was no statistical difference between post-operation and pre-operation. The difference between maximal angles of passive knee flexion(133.5+/-4.2) degrees and normal had no statistically significance. Maximal angles of active knee flexion were(153.5+/ 4.6) degrees . Ultrasonography showed the continuous fiber of medial retinaculum. A patient showed positive apprehension test and no patient had the recurrence patella instability after operation. CONCLUSIONS: The injury position of medial patellar retinaculum was accurately shown by high frequency ultrasonography and treated with arthroscopic suture operation. Knee immobilization time after operation was shorten. Eighteen months after operation, knee joint function was good, and no patient had the recurrence patella instability. PMID- 29327546 TI - [Bone mineral density decreased is a high risk factor for uncemented acetabular cups migration in female total hip arthroplasty patients]. AB - OBJECTIVE: To investigate the decrease of bone mineral density in female patients, effects on acetabular displacement. METHODS: From October 2013 to November 2015, a total of 34 patients underwent total hip replacement in the Department of orthopedics, the Third Affiliated Hospital of Zunyi Medical College. The two groups of patients were female and the patients were treated with hip osteoarthritis. Based on the lowest value of preoperative dual energy X ray bone mineral density (DXA), the patients were divided into normal group and low bone mineral density(-3.5<=T<=-1). There were 10 patients in the normal group, ranging in age from 55 to 64 years old, with an average of (58.00+/-4.22) years old. There were 24 patients in the low bone density group, ranging in age from 58 to 72 years old, with an average age of (65.71+/-8.19) years old. All the patients received a THA implant with ceramic-on-ceramic bearings(Depuy America). The lining system was Pinnacle cup. During the operation, the acetabular cup was maintained at abduction 45 degree and anteversion 15 degree. Analysis (RSA) of acetabular components in 3, 6, 12, and 24 months after surgery. RESULTS: There was a statistically significant difference in cup migration between patients with normal BMD and those with low BMD. At 3 months, compare to the normal group, the low bone mineral density (BMD) occurred in the X axis (95% confidence interval, 0.01 to 0.31; P=0.006) and Y (95% confidence interval 0.20 to 0.39; P=0.003). The initial rotation occurs in a separate Z axis(95% confidence interval -0.26 to 0.81; P=0.006). CONCLUSIONS: It has produced that increaseed migration of uncemented cups in female patients with low systemic BMD in 3 months after surgery. PMID- 29327547 TI - [Finite element analysis on the effect of lateral wedge insole intervention on the contact characteristics of the subtalar joint]. AB - OBJECTIVE: To establish a three-dimensional finite element model of the lower limb bones, and investigate the changes of the contact characteristics of the subtalar joint after using laterally wedge insole intervention. METHODS: Using the reverse modeling technology, the lower limb bones of normal adult volunteers was scanned by CT. Mimics 10.0 and Geomagic Studio 6.0 software were used to reconstruct the 3D morphology of bones and external soft tissue of the feet. The laterally wedge insole was designed in ProE 5.0. And then all the models were imported into Hyperwork 10.0 and meshed, and given the material properties. The finite element analysis was carried out in ABAQUS 6.9. RESULTS: A three dimensional finite element model of the lower extremity was established, which was consisted of 95 365 nodes and 246 238 elements. The contact area of the standing state of the lower joint was larger than that of the anterior middle joint surface. The peak stress was concentrated in the anterior lateral part of the posterior articular surface, and the average stress value was(3.85+/-1.03) MPa. Compared with the model of 0 degrees , the contact area of the subtalar joint was reduced accordingly. There was a significant correlation between anterior middle joint |r|=0.964, P=0.008, and posterior articular |r|=0.978, P=0.002. The equivalent stress of 0 degrees model distributed from(3.07+/-1.14) MPa to(3.85+/- 1.03) MPa, which had no statistically difference. Compared with the 0 degrees model, the equivalent stress of the anterior and middle joint surfaces of the 8 degrees model was significantly reduced(P<0.05), but the peak stress of the posterior articular surface was significantly increased(P<0.05). In the 12 degrees model, the peak stress was sharply increased to(10.51+/-3.53) MPa. Compared with 8 degrees model, there was no statistically difference(P<0.05). Although the peak stress was slightly increased in 16 degrees model, but compared with 12 degrees model, there was no statistically differences(P>0.05). CONCLUSIONS: Although a certain valgus can be obtained in subtalar by wearing LWI, the result comes at the cost of the stress concentration on posterior surface. Through this study, we can find that LWI with 8 degrees tilt angle could provide appropriate valgus moment without causing excessive concentration. Therefore, in order to avoid secondary ankle complications, we should not increase the tilt angle blindly. PMID- 29327548 TI - [Research of TCM synthetic rehabilitation on the recovery of wrist joint after distal radius fractures]. AB - OBJECTIVE: To evaluate efficacy and advantages of the Traditional Chinese Medicine (TCM) synthetic rehabilitation therapy in the treatment of wrist dysfunction after distal radius fractures. METHODS: From May 2014 to October 2015, 72 patients with distal radius fracture meeting standards were treated using central randomization system for clinical research. All the patients were divided into two groups: 36 patients in test group and 36 in control group. Sixty nine cases were finished treatment and followed up in the end. The test group fell off 1 case, and the control group fell off 2 cases. The test group was given TCM synthetic rehabilitation (manipulative therapy, joint mobilization, soaking washing with Chinese medicinal herbs, functional exercise), and the control group was given functional exercise as well as soaking-washing with Chinese medicinal herbs, 3 weeks for both. Five evaluation standards were used in this research, which were grip strength, patient-rated wrist evaluation (PRWE), Gartland and Werley wrist score, self-rating anxiety scale(SAS) and the overall curative effect evaluation. Before treatment(baseline), after 3 weeks of treatment and 3 months after fracture were the three points in time when collected the data. RESULTS: After 3 weeks of treatment and 3 months after fracture, the test group had a significantly better results than those of control group in the PRWE, G-W wrist score and the overall curative effect evaluation(P<0.05). In terms of grip strength recovery, after 3 weeks of treatment, the intergroup difference between the test group and the control group were statistically significant relative to the baseline regarding grip strength of ipsilateral wrist by group t test(P<0.05). However, the test group and the control group had no statistically significant relative to the baseline at 3 months after fracture in grip strength(P<0.05). For the anxiety of patients, compared with the test group and control group at before and after rehabilitation treatment, the anxiety of both test group and control group cases was eased(P<0.05). However, The degree of anxiety relief in test group and control group cases had no difference(P>0.05). CONCLUSIONS: The TCM synthetic rehabilitation therapy has better curative effects on the treatment of functional disability of wrist joints after distal radius fractures than the general therapy of soaking-washing with Chinese medicinal herbs and functional exercise. PMID- 29327549 TI - [Characteristics and treatments of the Essex-Lopresti injury]. AB - OBJECTIVE: To summarize experiences of operative treatment for Essex-Lopresti injury, and analyze the effect of the compare repair of interosseous membrane of forearm(IOM)on the forearm function. METHODS: Twenty-four patients of Essex Lopresti injury were treated from January 2005 to December 2013, 16 patients(group A) with radius and/or ulna fractures were treated with open reduction and internal fixation of radius or ulna and repair of forearm bone membrane at the same time, and then treated with open reduction and internal fixation of head of radius, as well as lower ulnar joint fixation or repair of wrist triangle fiber complex. Another 8 patients without radius and or ulna fractures(group B) were treated with open reduction and internal fixation of head of radius, as well as lower ulnar joint fixation or repair of wrist triangle fiber complex. The wrist joint function was evaluated using Cooney wrist functional rating index, and the elbow joint function was evaluated using Mayo elbow-performance score 2 weeks and 2 years after operation. RESULTS: According to Cooney wrist functional rating index, 4 patients in group A got a fair result and 12 poor, 2 patients in group B got a fair result and 6 poor 2 weeks after operation; 8 patients in group A got a good result, 6 fair and 2 poor, 5 patients in group B got a good result, 2 fair and 1 poor 2 years after operation. According to Mayo elbow-performance score, 2 patients in group A got a good result, fair and 6 poor, 1 patient in group B got a good result, 5 fair and 2 poor 2 weeks after operation; 8 patients in group A got a good result, 6 fair and 2 poor, 4 patients in group B got a good result, 3 fair and 1 poor. There were no statistically differences between two groups 2 weeks and 2 years after operation. CONCLUSIONS: It is important to restore the length of radius and/or ulna and maintain the dynamic stabilization of elbow and wrist for treat Essex-Lopresti injury. The repair of IOM has no effect on the forearm function. PMID- 29327550 TI - [Study on the correlative factors of the pain under the second metatarsal in patients with hallux valgus]. AB - OBJECTIVE: To analyze the correlation between the hallux valgus angle and arch X ray parameters change, plantar pressure by measuring the X-ray indexes and foot pressure indexes in patients with hallux valgus, as well as to study the main cause factors for the pain under the second metatarsal head. METHODS: A retrospective study of 254 patients(477 feet) treated in Wangjing Hospital from January 2012 to June 2013 was performed. The pain under the second metatarsal head and age distribution were recorded. All the patients were divided into two groups according to the second plantar bone pain: pain group and no pain group. The following indexes were measured and compared: HAVA(hallux abductor valgus angle), IMA1-2(the inter-metatarsal angle between the first and second metatarsals), IMA1-5(the inter-metatarsal angle between the first and fifth metatarsals), TAOTMLA (top angle of the medial longitudinal arch), AAOTMLA (anterior angle of the medial longitudinal arch), SMRL (the second metatarsal relative length than the first), and the plantar pressure indicators including TPUM (touch the ground time percentage under the second metatarsal head), PPUM (peak pressure under the second metatarsal head), and IUM(impulse under the second metatarsal head). All the factors were evaluated by Logistic regression analysis. RESULTS: Spearman rank correlation test showed that there were statistical significance in correlation between HAVA and IMA1-2, IMA1-5, TAOTMLA, AAOTMLA, TPUM(P<0.05, r=0.647, 0.553, 0.127, -0.165, 0.158). Factors including the HAVA, SMRL and the TPUM were the risks for the pain under the second metatarsal head in patients with hallux valgus(P<0.05, ORj=1.030, 1.069, 1.060). CONCLUSIONS: Increase of the hallux valgus angle causes the collapse of hallux valgus arch, extending the weight bearing time of the second metatarsal and increasing the possibility of the pain under the second metatarsal. PMID- 29327551 TI - [Analysis of the axial stretching force of the small splint fixation system]. AB - OBJECTIVE: To measure the axial stretching force produced by the small splint fixation system in the treatment of the fracture. METHODS: Dumbbell shaped plexiglass was machined to model the bone shaft with expanded two ends. Force transducer was set at the model fracture site to measure the stretching force produced by fracture fixation of the small splint with cloth aqueous bag that simulated the muscles and other soft tissue underneath. RESULTS: There was positive relationship between the axial stretching force produced at the model fracture site and the transverse pressing force exerted by the external plates. The ratio of which was 1/10. CONCLUSIONS: Muscle enwrapped with fascia is similar to the cloth aqueous bag system in mechanical structure. From this article, axial stretching force exists at the bone shaft fracture site when fixed by small splint which exerts the force transversely from the outside of the extrimity. PMID- 29327552 TI - [Treatment of irreducible Gartland typeIII humerus supracondylar fracture in children with limited open reduction and percutaneous K-wire internal fixation]. AB - OBJECTIVE: To investigate the clinical outcomes of limited open reduction and percutaneous K-wire internal fixation for the treatment of irreducible Gartland type III humerus supracondylar fracture in children. METHODS: From May 2006 to October 2014, 132 patients with irreducible Gartland type III humerus supracondylar fracture were treated with reduction and percutaneous K-wire internal fixation. The reduction was performed with the guiding of surgeon's finger, and the lateral approach with periosteum torn was chosen according to the shift direction of the distal fractures. Among them, there were 82 males and 50 females with an average age of 5.8 years old(ranged from 2 to 14 years old). RESULTS: All the patients were followed up, the duration ranged from 6 to 36 months, with an average of 13.7 months. Ninety-five patients got an excellent result, 27 good, 8 fair, and 2 poor. CONCLUSIONS: Limited open reduction and percutaneous K-wire internal fixation for the treatment of irreducible Gartland type III humerus supracondylar fracture in children has many advantages: simple manipulate, not affected by the elbow swelling, and satisfactory curative effect. It is worth popularizing in clinic. PMID- 29327553 TI - [Preliminary development of drill template-assisted placement of reverse intramedullary lag screw for superior ramus of pubis using three dimentional print technique]. AB - OBJECTIVE: To investigate the feasibility of a drill template for the placement of reverse intramedullary lag screws on the outside of the pubis based on digital design and 3D printing technology. METHODS: The preoperative CT images of a 23 year-old male patient with pelvic fracture were collected retrospectively. According to the Young and Burgess classification, the type of pelvic fracture was LC IIwith the 3D printing technology. The data was reconstructed by 3D imaging reconstruction software to produce 1:1 three dimensional model. The screw channel and the individual drill template was designed by the softwares of Mimics 10.01 and Geomagic 12, the accuracy of a drill template was observed by X-rays and CT scans after the placement of 2.0 mm K-wires in the three dimensional template fixed on the model. RESULTS: Three dimensional pelvic model and digital, individual drill template could meet the requirement of the placement of reverse interamodullary lay screw for the treatment of superior ramus of pubis fracture. K-wire was placed and the accuracy of screw placement was confirmed using the X ray and CT scanning. Template and the corresponding anatomical landmark fitted well. CONCLUSIONS: With the assistance of the individual design and 3D printing technology, the accurate placement of superior ramus of pubis fracture screws can be realized. This technology is helpful to reduce the operation time and X-ray exposure of the patients and doctors. PMID- 29327554 TI - [Ewing's sarcoma misdiagnosed as nonossifying fibroma: a case report]. PMID- 29327555 TI - [Anterior versus posterior approach for multilevel cervical spondylotic myelopathy: a meta-analysis]. AB - OBJECTIVE: To assess the clinical effectiveness and safety of anterior versus posterior approach for multilevel cervical spondylotic myelopathy. METHODS: The following databases were searched: the Cochrane Library, PubMed, EM base, OVID, CBM, Wanfang Data, CNKI. Relevant journals were manually searched for randomized controlled trials or clinical controlled trials(CCTs) that investigated the clinical effectiveness and safety of anterior and posterior approach for multilevel cervical spondylotic myelopathy. Two reviewers independently screened the literature according to inclusion and exclusion criteria, extracted the data, and assessed the methodological quality of included studies. Meta-analysis was performed by using RevMan 5.2 software. RESULTS: Eight CCTs, involving 1 151 patients, were included. Significant differences were found between anterior and posterior approach with respect to complications, OR=2.19, 95%CI (1.50, 3.19), P<0. 000 1; and neural recovery rate, WMD=11.04, 95% CI(0.60, 21.47), P=0.04 . In addition, there were no significant differences in preoperative JOA scores, WMD=0.13, 95% CI (-0.20, 0.46), P=0. 44; postoperative JOA scores, WMD=0.45, 95% CI (-0.10, 1.00), P=0.11; operation time, WMD=39.43, 95% CI(-5.92, 84.78), P=0.09; and amount of intraoperative bleeding, WMD=5.46, 95% CI(-96.65, 107.58), P=0. 92). CONCLUSIONS: There are no significant differences between anterior and posterior approach for multilevel cervical spondylotic myelopathy in the recovery of neural function of the spinal cord, operation time and intraoperative bleeding. However, posterior appreach showed fewer complications than anterior appreach. PMID- 29327556 TI - [Surgical treatment for the fractures and dislocations of the elbow in old patients]. AB - OBJECTIVE: To introduce and report the preliminary results of 7 old patients with fractures and dislocations of the elbow. METHODS: From July 2011 to August 2015, 7 old patients suffered from fractures and dislocations of the elbow(5 of which were terrible triad). One patient had type Iradial head fracture, 3 type IIand 1 type III according to the Mason classification, and 1 type I, 5 type IIand 1 type III according to the Regan-Morrey classification. All the 7 patients received operation and then were treated with external fixation. Fractures of the radial head were fixed with Herbert screws or locking plates and screws. Fractures of ulnar coronoid were reduced and fixed with lag screws or K-wires or PDS sutures or locking screws according to the types. The lateral and medial collateral ligaments were also repaired. Plaster external fixation was applied for 3 weeks after operation, in the position with elbow flexion in 90 degrees and forearm rotation in neutral. External fixation braces were used for each patient after the plasters were removed, and at the same time rehabilitation programs were carried out. RESULTS: All the 7 patients were followed up, and the during ranged from 13 to 48 months(averaged, 20 months), with healed fractures, stable elbow and no pain movement. The functional outcome was excellent in 3 patients, good in 3 and fair in 1 according to the Mayo Elbow Performance Score(MEPS). CONCLUSIONS: It is not easy to get stable fixation for fractures and dislocations of the elbow in old patients with osteoporosis and low density of bone, but the operation can achieve satisfied clinical outcomes after external fixation. PMID- 29327557 TI - [Surgical treatment for 14 patients with old fractures of humeral lateral condyle in children]. AB - OBJECTIVE: To study clinical effects of operation for the treatment of old fractures of the humerus lateral condyle in children. METHODS: From January 2012 to January 2014 in our department, 14 children of old humeral lateral condyle fractures were treated with operation. Ten cases were male, 4 cases were female; age from 2 to 12 years old, average 5.8 years old. The initial diagnosis was type IIfracture according to the Milch ciassification, the loss of treatment in 11 cases, conservative treatment in 3 cases of nonunion after fracture displacement. Two cases had mild cubitus valgus deformity; 10 cases had elbow disorders, and the motion range was limited from 15 degrees to 60 degrees ; 6 cases had pain in activity. The time from injury to operation was 32 to 176 days(62 days on average) in 14 cases, the 14 cases were treated with open reduction and internal fixation. According to the Modified An-Morrey elbow function assessment criteria after surgery for curative effect. RESULTS: Fourteen cases were followed up for 1 to 3 years, average 1.8 years. No nonunion, malunion, aseptic necrosis of the epiphysis, cubitus varus or valgus occurred. Five cases had mild protrusion deformity of external condyle, 3 cases still had mild dysfunction. The time of clinical bone union was 4 to 8 weeks in X-ray films. Five cases had bony spur formation, 3 cases had signs of early closure of epiphysis; 2 cases had a increasing volume of humeral lateral condyle; and 2 cases appeared tail deformity. Modified An-Morrey score averaged(95.2+/-3.6) points, 13 excellent, 1 good. CONCLUSIONS: For the old fracture of humeral lateral condyle, operation can effectively restore the appearance and function of elbow joint, and the short term curative effect is satisfactory, but the long-term effect needs further observation. PMID- 29327558 TI - [Modified osteotomy of olecranon for the management of inter-condylar fracture of the humerus]. AB - OBJECTIVE: To explore the surgical method and clinical outcome of modified osteotomy of olecranon for the treatment of inter-condylar fracture of humerus. METHODS: From May 2007 to December 2012, 32 patients of intercondylar fracture of humerus were treated surgically through the approach of modified osteotomy of olecranon. The patients were 21 males and 11 females with a mean age of 46.3 years (ranged 18 to 65 years). Nineteen fractures occurred on the right extremity and 13 on the left extremity. According to the AO classification, type C1 fracture was found in 7, C2 in 11 and C3 in 14. Five patients suffered from open fracture (Gustilo type Iin 3, type II in 2). Other fractures occurred in 6 patients and the primary injury of nerve occurred 6. The healing of the osteotomy was evaluated with physical examination and plain X-ray film, and the function of elbow was assessed according to Cassebaum scale. RESULTS: All the patients were followed from 9 months to 5 years(average, 1.9 years). All the osteotomies healed at 7.4 weeks averagely after operation, and no nonunion, delayed union, fracture of ulna olecranon were found. Two cases had little pain on the elbow, heterotopic ossification occurred in 2 cases and cutting bone block loosed in 1 case. The function of the elbow showed excellent in 19 cases, good in 8, fair in 4 and poor in 1. CONCLUSIONS: The use of the approach of modified olecranon osteotomy for surgical management of intercondylar fracture of humerus has some advantages, it provides satisfactory stability with simple technical procedures avoiding inter articular invasion, and it facilitates rehabilitation exercises and providing good results with low complication rates. PMID- 29327560 TI - [Research progress on reatment of unstable atlas fracture with single-segment fixation by transoral approach]. AB - As a common type of fracture in cervical, atlas fracture is frequently unstable due to its special anatomical structure. In a previous treatment, external fixation was likely to bring low bony union rate and long-term neck pain, while occipito-cervical fusion and atlantoaxial fusion sacrifice range of motion in cervical spine. Reduction and single section fixation of atlas by anterior lateral mass screws through the transoral approach were reported by some scholars, and the retrospective study demonstrated the high healing rate, reservation of cervical ROM and less bleeding. But it also has high risks of cervical spinal cord and vertebral artery damage, as well as the post-operation infection. Moreover, the indication and fixation strength require further evidences. As a result, this surgical option provides a new way for spinal surgeons to deal with unstable atlas fractures. PMID- 29327559 TI - [Combined surgical approaches in the treatment of complex tibial plateau fractures]. AB - OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34.9 years old; 19 patients had fractures on the left and 15 patients had fractures on the right. According to Schatzker classification, 11 cases of type IV, 15 cases of type V and 8 cases of type VI. According to the three column classification, 23 cases of double column fractures, 11 cases of three column fractures. The X-ray healing time and knee joint mobility were recorded. The mean tibial plateau angle(TPA) and the mean posterior slope angle (PA) were measured and recorded immediately after operation, 6 and 12 months after operation. The knee function was evaluated using the Hospital for Special Surgery Score(HSS) 3, 6 and 12 months after operation. RESULTS: Among all the patients, 28 patients were followed up, and the duration time ranged from 8 to 39 months with a mean of(21.6+/-8.7) months. All the fractures were healed. The healing time in terms of X-ray ranged from 12 to 24 weeks, with a mean of (14.5+/-3.6) weeks. The range of knee activity ranged from 105 degrees to 135 degrees , with a mean of (121.5+/-5.5) degrees . Immediately after operation, 6 and 12 months after operation, the mean tibial plateau angle (TPA) was (84.3+/-1.8) degrees , (85.1+/-1.3) degrees , (85.6+/-1.6) degrees , and the mean posterior slope angle (PA) was (7.8+/-1.6) degrees , (7.8+/-1.3) degrees , (7.7+/-2.3) degrees , respectively, showing no significant difference between the 3 time points. The mean HSS score at 3, 6 and 12 months after operation was 71.4+/-1.4, 76.7+/-1.7, 81.6+/-1.2 respectively, showing no significant differences between the 3 time points. One patient with early knee joint stiffness had 6 degrees of the restricted straight range after the active functional exercise, 1 year after operation. Anterolateral wound dehiscence occurred in 1 cases but was cured by dressing without deep wound infection occurred. The pain occurred in 4 cases when the weather changed. At the end of follow-up, no case of knee joint instability, knee valgus, loosening or breakage occurred. CONCLUSIONS: The posteromedial inverted "L" shape approach combined assisted anterior lateral approach for the treatment of complex fractures of tibial plateau can expose the operation area, repair the fracture under the direct vision, and implant a full amount of bone graft for the collapse of the platform.Thus, the smoothness of the articular surface is restored, and the fixation is firm, which is beneficial to the early functional exercise, less complications, and satisfactory clinical curative effects. PMID- 29327561 TI - Hostility of proximal aortic neck anatomy in relation to abdominal aortic aneurysm size and its impact on the outcome of endovascular repair with the new generation endografts. AB - BACKGROUND: To assess the relation of abdominal aortic aneurysm (AAA) diameter with the proximal neck anatomy (PNA) hostility and to evaluate its impact on the endovascular aneurysm repair (EVAR) outcomes with the use of newer generation endografts. METHODS: Retrospective analysis of single institution's recorded data from February 2009 to April 2016. Patients' characteristics, co-morbidities, aortic morphology, perioperative characteristics and outcomes were analyzed. In relation to AAA diameter 2 groups were identified: group A (50 - 55mm) and group B ( >55mm). Hostile PNA was defined based on: neck diameter >28mm, length <15mm, angulation >60o, and circumferential thrombus and/or calcification >50%. The aortic neck scoring system was calculated. Multiple logistic regression analysis with a forward likelihood ratio method adjusted for age and gender was undertaken. RESULTS: 317 patients (96% males, mean age 72.4+/- 9 years, 80% elective) were follow up for a mean of 23.4 months (range, 3-86 months). No differences were observed in demographics and co-morbidities between the two groups (group A:134, 42% vs. group B: 183, 58%). Hostile PNA was present in 147/317 (46%) patients and significantly more likely to be present in group B (P<.001). In group B the aortic neck score was higher (P<.001), the likelihood for having hostile PNA increased for neck diameter by 2.2 -fold (OR 2.2, P=.013, 95% CI: 1.18-4.03), length by 2.3-fold (OR 2.3, P=.012, 95% CI:1.20-4.51), angle by 4.8-fold (OR 4.8, P= .002, 95% CI:1.79-13.24) and presence of thrombus by 1.5 fold (OR 1.5, P=.037, 95% CI: 1.45- 10.34). No association existed for neck calcification (P=.071). Technical success, adjunctive procedures, perioperative characteristics and outcomes were comparable in friendly and hostile PNAs. CONCLUSIONS: PNA hostility is more likely in AAA with diameter >55mm but with the use of newer generation endografts this did not influence the short- and mid- term EVAR outcomes. Longer follow-up is needed for a more definite conclusion. PMID- 29327562 TI - Development of a porcine beating-heart model of self-myocardial retroperfusion: evaluation of hemodynamic and cardiac responses to ischemia and clinical applications. AB - BACKGROUND: Retrograde perfusion into the coronary sinus is used to deliver cardioplegia. We developed an in-vivo porcine beating-heart model of self myocardial retroperfusion (SMR) using the venous route to supply myocardial oxygenation and sought to assess hemodynamic and cardiac responses triggered by SMR before and after a prolonged occlusion of the LAD. METHODS: A bypass-line between the ascending aorta and the coronary sinus was made to perform a selective retrograde perfusion of the great cardiac vein with oxygenated blood (SMR). A Control group (N.=6) was assigned to collect baseline data, and an SMR group (N.=6) was dedicated to undergo SMR with occlusion of LAD for 240 minutes. Cardiac output (CO), maximal pressure in the LV (Pmax in-LV), stroke volume (SV), left ventricular ejection fraction (LVEF), diastolic durations, heart rate, and arterial systemic pressure were evaluated with conductance catheters for the following periods: basal (before SMR), SMR with patent LAD, and SMR with occluded LAD. In order to assess peripheral perfusion, patterns of sublingual microcirculation were analyzed. At the end of the procedures, the hearts were harvested for histology. RESULTS: Echographic LVEF evaluation was affected by sternotomy, but conductance catheter evaluation was not. Following pericardiotomy, CO decreased by 7.51% (P<0.05). SMR with patent LAD showed inotropic properties with improvements in CO, SV, Pmax in-LV and LVEF (P<0.0001). Following LAD occlusion, SMR supplied myocardial oxygenation with hemodynamic compensation and preserved the peripheral perfusion. Histology confirmed no signs of infarct. CONCLUSIONS: SMR showed capacities to produce inotropic effects and protect against ischemia, opening interesting perspectives. PMID- 29327564 TI - Neo-pulmonary valve fabrication using tissue-engineered pericardium: a new surgical technique. PMID- 29327565 TI - Durability of fenestrated endovascular aortic repair for juxta-renal abdominal aortic aneurysm repair. AB - BACKGROUND: The aim of this study was to evaluate the long term durability of fenestrated endovascular aortic aneurysm repair (F-EVAR) of juxta-renal aortic aneurysms (JAAAs) in terms of mortality, target visceral vessel (TVV) patency and Reintervention rates. EVIDENCE ACQUISITION: A systematic review and meta-analysis was performed. MEDLINE, CENTRAL, and Cochrane databases were searched with PRISMA methodology for studies reporting on F-EVAR of JAAA presenting follow-up >36 months. Articles with <15 patients, follow-up <36 months, comparison of F-EVAR with other treatment modalities were excluded. EVIDENCE SYNTHESIS: Seven non randomized retrospective studies of prospectively collected data were analysed including 772 patients (mean age and diameter ranging from 71.5 to 74 years and from 60 to 65mm, respectively) underwent F-EVAR for JAAA during 2001-2015. The pooled mortality rates during 12, 24, 36, 48 and 60 months were 0.080 (0.060 0.106), 0.129 (0.097-0.169), 0.211 (0.158-0.277), 0.279 (0.193-0.386) and 0.405 (0.303-0.517), respectively. The pooled Reintervention rates during 12, 24, 36 and 48 months were 0.097 (0.066-0.140), 0.131 (0.082-0.203), 0.281 (0.182-0.406) and 0.244 (0.103-0.477), respectively. The pooled loss of TVV patency rates during 12, 24, 36, 48 and 60 months were 0.046 (0.035-0.060), 0.081 (0.058 0.110), 0.088 (0.060-0.127), 0.123 (0.067-0.214) and 0.132 (0.081-0.207). CONCLUSIONS: F-EVAR for the treatment of patients with JAAA is a durable procedure with good long term outcomes in terms of mortality and visceral vessels patency. During long term period the need for a Reintervention continues to exists, thus follow-up of those cases may be important for preserving the good results. PMID- 29327563 TI - Hemodynamic outcomes of the Ross procedure versus other aortic valve replacement: a systematic review and meta-analysis. AB - INTRODUCTION: Life expectancy in young adults undergoing mechanical or bioprosthetic aortic valve replacement (AVR) may be reduced by up to 20 years compared to age matched controls. The Ross procedure is a durable, anticoagulation-sparing alternative. We performed a systematic review and meta analysis to compare the valve hemodynamics of the Ross procedure versus other AVR. EVIDENCE ACQUISITION: We searched Cochrane CENTRAL, MEDLINE and EMBASE from inception to February 2017 for randomized controlled trials (RCTs) and observational studies (n>=10 Ross). Independently and in duplicate, we performed title and abstract screening, full-text eligibility assessment, and data collection. We evaluated the risk of bias with the Cochrane and CLARITY tools, and the quality of evidence with the GRADE framework. EVIDENCE SYNTHESIS: We identified 2 RCTs and 13 observational studies that met eligibility criteria (N.=1412). In observational studies, the Ross procedure was associated with a lower mean aortic gradient at discharge (MD -9 mmHg, 95% CI: -13 to -5, P<0.0001, I2=97%) and latest follow-up (MD -5 mmHg, 95% CI: -7 to -3, P<0.0001, I2=92%). There was no significant difference in the incidence of severe aortic regurgitation at latest follow-up (RR 1.3, 95% CI: 0.3 to 5.8, P=0.70, I2=30%). In RCTs, the Ross procedure was associated with a lower mean gradient at latest follow-up (MD -15 mmHg, 95% CI: -32 to 2, P=0.08, I2=99%). The mean pulmonic gradient for the Ross procedure was 18.0 mmHg (95% CI: 16 to 20, P<0.0001) at latest follow-up. The evidence for all outcomes from observational studies was deemed to be of very low quality, while the evidence from RCTs was downgraded for imprecision and moderately serious risk of bias. CONCLUSIONS: Compared to conventional AVR, the Ross procedure was associated with better aortic valve hemodynamics. Future studies should evaluate the impact of the Ross procedure on exercise capacity and quality of life. PMID- 29327566 TI - Upper extremity access options for complex endovascular aortic interventions. AB - The advancement of endovascular therapy has led to minimally invasive solutions to increasingly complex aortic pathology, including thoracoabdominal aneurysms and those involving the visceral segment. Upper extremity access is beneficial in a variety of these complex interventions, and may be absolutely required for certain procedures such as placement of parallel chimney grafts. Traditionally, the brachial artery has been the primary access site on the arm, using either a percutaneous or open approach. Brachial access is safe and effective, and remains suitable for the majority of clinical situations. More recently though, descriptions of axillary and radial access have emerged and may provide a useful alternative in specific cases. These options should be viewed as complementary rather than competitive, and facility with all three techniques is desirable. Here, we describe in detail the various options for upper extremity access during complex aortic aneurysm repair and their relative advantages. PMID- 29327567 TI - Does surgical ventricular restoration still represent a valuable option in the surgeon's armamentarium in the post-STICH era? PMID- 29327568 TI - Is there an age limit for abdominal aortic aneurysm repair? AB - INTRODUCTION: There is an increasing number of elderly in society and some of them may have an abdominal aortic aneurysm (AAA). The prevalence of AAA in octo- and nonagenarians indicates that this number could be substantial. The question is: is there an age limit for repair? This complex question incorporates ethical, political, economic and medical aspects. To answer part of this question a review of the outcome of elective and emergent AAA repair in those over 80 was done. EVIDENCE ACQUISITION: A literature research was done in the PubMed and Embase databases between 2007 and 2017 for either emergent and/or elective repair of AAA in individuals older than 80 years of age. EVIDENCE SYNTHESIS: Ten of 663 studies were found eligible for the review. Elective AAA repair in individuals more than 80 years shows a very varying outcome with 30-day mortality between 0% and 20.1% and 1-year mortality between 7% and 26%. Length of procedure, hospital stay, and number of major adverse events are also more in those over 80 years of age. In ruptured AAA 30-day mortality is between 29 and 59 % and 1 one year between 45% and 63%. CONCLUSIONS: No definitive answer whether to perform a repair of AAA in the elderly can be given. The decision has to be individualized and will also vary depending on ethical, political, economic factors and type of healthcare system the individual lives in. PMID- 29327569 TI - Combination of endovascular revascularization and supervised exercise therapy for intermittent claudication: a systematic review and meta-analysis. AB - BACKGROUND: Peripheral arterial disease is a major health concern in the Western world, often treated with endovascular revascularization (EVR) or supervised exercise therapy (SET). In this systematic review and meta-analysis, we assessed the outcomes after combination treatment of EVR and SET, compared with EVR or SET alone. EVIDENCE ACQUISITION: We performed a systematic search of Embase, Medline, Web of Science, Cochrane Central and Google Scholar. Only randomized controlled trials comparing combination treatment with EVR or SET only, for patients with intermittent claudication due to femoropopliteal or aortoiliac peripheral artery disease, were included. Primary outcome was maximum walking distance (MWD) at 6 and 12 months' follow-up. Secondary outcomes included pain-free walking distance (PFWD), quality of life and adverse events. Pooled estimates of difference in walking distance between EVR plus SET, EVR only and SET only were calculated using random effects models. EVIDENCE SYNTHESIS: Our search yielded 812 articles, of which 7 were finally included in the systematic review. Three studies reported the outcomes of combination treatment versus SET and three more reported the outcomes of combination versus EVR. Follow-up ranged between 6 and 24 months. Combination treatment was associated with a greater MWD at 6 months compared to EVR only or SET only, with a standardized mean difference (SMD) of 0.86 (95% CI: 0.15, 1.57) and 0.41 (95% CI: 0.17, 0.66), respectively. At twelve months no significant difference in maximum walking distance was observed between combination treatment compared to EVR (SMD 0.96 [95% CI: -0.44, 2.37]) or SET (SMD 0.52 [95% CI: -0.17, 1.20]). Compared to EVR only, the combination treatment was associated with a greater PFWD walking distance at 12 months (SMD 0.73 [95% CI 0.01, 1.45]). Most studies reported only minor differences in quality of life in favor of the combination treatment, or no difference at all. CONCLUSIONS: Combination treatment of endovascular revascularization followed by SET shows a greater improvement in maximum walking distance at 6 months' follow-up compared to EVR only or SET only, while this difference was no longer present after 12 months. PMID- 29327570 TI - The DETOUR procedure: no more need for conventional bypass surgery? AB - BACKGROUND: Long segment occlusive disease in the superficial femoral artery remains a treatment challenge despite advances in open surgical and endovascular approaches. We report initial clinical results of an entirely new procedure to perform percutaneous femoro-popliteal bypass using the DETOUR System. First-in human patients were performed in New Zealand from December 2013 to June 2014. After modifications to the technique and devices had significantly refined the procedure, the Detour I Trial commenced. METHODS: Review of initial results in the first five patients treated at a single site enrolled in IRB-approved, prospective clinical study using the DETOUR System. All patients signed informed consent with planned 2-year follow-up. The DETOUR System was used to create a stent graft bypass which originates in the SFA, travels through the femoral vein, and ends in the popliteal artery, bypassing the diseased segment. RESULTS: A cohort of patients were treated in Latvia from January 2015 to October 2015. The initial five patients in this cohort (age 67.2+/-11.4 years) with long femoral artery occlusions (29.5+/-14.1 cm) were treated at a single clinical site. TORUS stent grafts were successfully implanted in all 5 patients (100%) using an 8F delivery system. There were no perioperative 30-day major adverse events (death, major bleeding, deep vein thrombosis, target vessel revascularization or major amputation) observed. At 24 months' follow-up, the primary patency rate was 80% (4/5) and primary assisted patency was 100% (5/5). Significant improvement in ankle-brachial index and Rutherford class were observed in all patients. There was a single secondary procedure performed in these patients (proximal stent edge stenosis at 24 months). The venous function has not been damaged or compromised in any patient. CONCLUSIONS: Early results suggest that properly-selected patients with long-segment occlusive disease above the knee can be safely treated using the DETOUR System for percutaneous bypass, with favorable clinical outcomes extending to 2 years. Further clinical investigation is warranted to evaluate the role of this approach in the treatment of long femoral lesions. PMID- 29327571 TI - The current state of flexide catheter robotics for endovascular interventions. PMID- 29327572 TI - Endovascular treatment of isolated abdominal aortic dissection. PMID- 29327573 TI - Treating complex femoropopliteal lesions. AB - Peripheral artery disease affects 202 million patients worldwide and may cause disabling intermittent claudication and critical limb ischemia. Next to life style changes, best medical treatment and supervised exercise therapy, it can be necessary to re-vascularize the limb. Treatment of femoropopliteal lesions poses a challenge and a surgical bypass remains recommended in the guidelines for longer and more complex lesions. Bypass surgery is associated with substantial morbidity and even mortality. Endovascular alternatives are quickly evolving from plain balloon angioplasty to drug-eluting stents, drug-coated balloons, polytetrafluoroethylene-covered stents and atherectomy. These developments might challenge the gold standard in the near future. This article focuses on which technique can be used for which femoropopliteal lesion, particularly complex lesions, and summarizes the most recent and important literature on this topic. PMID- 29327574 TI - Review on management and outcomes of ruptured abdominal aortic aneurysm in women. AB - Vascular procedures in general, and specifically abdominal aortic aneurysm (AAA) repair, are associated with worse outcomes in female patients. However, how female gender influences outcomes in the setting of aneurysm-rupture remains unclear and may be even more pronounced when compared to elective operations. In this report, the authors aim to review the literature regarding ruptured AAA repair in women. Using the traditional threshold for AAA of 30 mm of maximum diameter, the prevalence in women is lesser than in men. However, the true prevalence may be underestimated due to gender discrepancies in normal aortic diameter. For females, aneurysmal disease seems to manifest later, have more associated comorbidities, and rupture occurs at smaller aortic diameters. This has obvious implications for management. There is still no consensus over the optimal treatment for ruptured AAA in women. They are less frequently treated by endovascular aneurysm repair, possibly due to anatomical restrains. When feasible, endovascular repair shows better outcomes, at least in the short-term, and there is new evidence suggesting a lasting benefit as well. For open repair the results are consensually worse when compared to male counterparts. Finally, despite benefitting of apparently similar healthcare, women have a lower relative survival after rAAA repair when compared to men. Further investigation to determine the reasons of these discrepancies is warranted. PMID- 29327575 TI - The revolution of transcatheter aortic valve implantation. PMID- 29327576 TI - Is EVAR a durable solution? Indications for reinterventions. AB - INTRODUCION: Indications for reinterventions after endovascular aneurysm repair (EVAR), as well as their occurrence in number and time, are important to establish in order to optimize patient selection, postprocedure surveillance and also to guide improvements in endograft designs. The aim of this report was to present an overview of current data on reinterventions after elective EVAR. EVIDENCE ACQUISITION: Qualitative review of studies reporting on reinterventions after elective EVAR, identified by a systematic literature search in MEDLINE, EMBASE and the Cochrane Library for publications from 2010 to 13th of November 2017. EVIDENCE SYNTHESIS: Twenty-three studies reporting on 83,307 patients met the inclusion criteria. Index procedures were performed between 1996-2014. There was wide heterogeneity in reporting standards. Type I endoleaks were reported in 0.6%-13% and type III endoleaks in 0.9-2.1% with a significant improvement for newer devices. Migration rates varied between 0-4%. Endoleak type II was the most common indication for re-intervention ranging from 14-25.3% although the majority resolved without intervention. Rupture rates ranged from 0-5.4% and carried a high mortality (60-67%). Ruptures occurred at any time after the index procedure. Limb ischemia rates were reported at 0.4-11.9% with re-intervention rates between 0.06-11.9%. Wound related complications and related re-interventions were the indication in 0.5-14% and 0.3-6.5%, respectively. Endograft infection carried a high risk of mortality and was described in 0.3-3.6%, often related to graft enteric fistula and the majority had an open explantation of the endograft. CONCLUSIONS: This review showed that the rates of complications and techniques for reintervention developed over time with a tendency towards better outcomes considering the aneurysm related indications. Significant factors that led to subsequent secondary interventions were migration, rupture, infections and type I and II endoleaks. Patients treated with earlier generation endografts are still alive and need continued surveillance to detect these severe complications before they lead to rupture. PMID- 29327577 TI - Interplay of Interfacial Layers and Blend Composition To Reduce Thermal Degradation of Polymer Solar Cells at High Temperature. AB - The thermal stability of printed polymer solar cells at elevated temperatures needs to be improved to achieve high-throughput fabrication including annealing steps as well as long-term stability. During device processing, thermal annealing impacts both the organic photoactive layer, and the two interfacial layers make detailed studies of degradation mechanism delicate. A recently identified thermally stable poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b']dithiophene 2,6-diyl][3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophenediyl]]:[6,6] phenyl-C71-butyric acid methyl ester (PTB7:PC70BM) blend as photoactive layer in combination with poly(3,4-ethylenedioxythiophene) polystyrene sulfonate as hole extraction layer is used here to focus on the impact of electron extraction layer (EEL) on the thermal stability of solar cells. Solar cells processed with densely packed ZnO nanoparticle layers still show 92% of the initial efficiency after constant annealing during 1 day at 140 degrees C, whereas partially covering ZnO layers as well as an evaporated calcium layer leads to performance losses of up to 30%. This demonstrates that the nature and morphology of EELs highly influence the thermal stability of the device. We extend our study to thermally unstable PTB7:[6,6]-phenyl-C61-butyric acid methyl ester (PC60BM) blends to highlight the impact of ZnO on the device degradation during annealing. Importantly, only 12% loss in photocurrent density is observed after annealing at 140 degrees C during 1 day when using closely packed ZnO. This is in stark contrast to literature and addressed here to the use of a stable double-sided confinement during thermal annealing. The underlying mechanism of the inhibition of photocurrent losses is revealed by electron microscopy imaging and spatially resolved spectroscopy. We found that the double-sided confinement suppresses extensive fullerene diffusion during the annealing step, but with still an increase in size and distance of the enriched donor and acceptor domains inside the photoactive layer by an average factor of 5. The later result in combination with comparably small photocurrent density losses indicates the existence of an efficient transport of minority charge carriers inside the donor and acceptor enriched phases in PTB7:PC60BM blends. PMID- 29327578 TI - Rapid Light-Driven Color Transition of Novel Photoresponsive Polydiacetylene Molecules. AB - We developed new photoresponsive polydiacetylene (PR-PDA) molecules by incorporating a photocleavable moiety, 6-nitropiperonyl alcohol (NP) or 4,5 dimethoxy-2-nitrobenzyl alcohol (DMN), into a self-assembling diacetylene molecule. Inducing steric disordering of the assembled PDA molecules by the cleavage of the photoresponsive moiety under 365 nm UV irradiation results in color transition from blue to red and development of red fluorescence, allowing convenient photo patterning. Further writing and erasing of fluorescence patterns are demonstrated toward novel secure information communication and anticounterfeiting applications. PMID- 29327579 TI - Can Multielectron Intercalation Reactions Be the Basis of Next Generation Batteries? AB - Intercalation compounds form the basis of essentially all lithium rechargeable batteries. They exhibit a wide range of electronic and crystallographic structures. The former varies from metallic conductors to excellent insulators. The latter often have layer structures or have open tunnel structures that can act as the hosts for the intercalation of a wide range of metal cation and other guest species. They are fascinating materials with almost infinitely variable properties, with the crystal structure controlling the identity and the amount of the guest species that may be intercalated and subsequently removed. The electronic structure controls not only the degree of electron transfer to the host, but also defines the degree of the electrostatic interactions a mobile ion experiences; thus, a metallic host will provide a minimizing of those interactions, whereas in an ionic lattice the interactions will be much greater and the mobile ion will experience a much higher activation energy for motion. This becomes more important for multivalent cations such as Mg2+. Today's lithium batteries are limited in capacity, because less than one lithium ion is reversibly intercalated per transition metal redox center. There may be an opportunity to increase the storage capacity by utilizing redox centers that can undergo multielectron reactions. This might be accomplished by intercalating multiple monovalent cations or one multivalent cation. In this Account, we review the key theoretical and experimental results on lithium and magnesium reversible intercalation into two prototypical materials: titanium disulfide, TiS2, and vanadyl phosphate, VOPO4. Both of these materials exist in two or more phases, which have different molar volumes and/or dimensionalities and thus are expected to show a range of diffusion opportunities for battery active guest ions such as lithium, sodium, and magnesium. One major conclusion of this Account is that reversibly intercalating two lithium ions into a host lattice while maintaining its crystal structure is possible. A second major conclusion is that theoretical studies are now sufficiently mature that they can be relied upon to predict the key free energy values of simple intercalation reactions, i.e., the energy that might be stored. This could help to focus future choices of battery couples. In hindsight, theory would have predicted that magnesium-based intercalation cells are not a viable electrochemical option, relative to lithium cells, from either power or energy density considerations. However, the fundamental study of such reactions will lead to a better understanding of intercalation reactions in general, and of the critical importance of crystal structure in controlling the rates and degree of chemical reactions. PMID- 29327580 TI - Measuring RNA-Ligand Interactions with Microscale Thermophoresis. AB - In recent years, there has been dramatic growth in the study of RNA. RNA has gone from being known as an intermediate in the central dogma of molecular biology to a molecule with a large diversity of structure and function that is involved in all aspects of biology. As new functions are rapidly discovered, it has become clear that there is a need for RNA-targeting small molecule probes to investigate RNA biology and clarify the potential for therapeutics based on RNA-small molecule interactions. While a host of techniques exist to measure RNA-small molecule interactions, many of these have drawbacks that make them intractable for routine use and are often not broadly applicable. A newer technology called microscale thermophoresis (MST), which measures the directed migration of a molecule and/or molecule-ligand complex along a temperature gradient, can be used to measure binding affinities using very small amounts of sample. The high sensitivity of this technique enables measurement of affinity constants in the nanomolar and micromolar range. Here, we demonstrate how MST can be used to study a range of biologically relevant RNA interactions, including peptide-RNA interactions, RNA-small molecule interactions, and displacement of an RNA-bound peptide by a small molecule. PMID- 29327581 TI - Direct Measurement of Large Electrocaloric Effect in Ba(ZrxTi1-x)O3 Ceramics. AB - Barium zirconate titanate (BZT) (Ba(ZrxTi1-x)O3) ceramics with Zr4+ contents of x = 5, 10, 15, 20, 25, and 30 mol % were prepared using a solid-state reaction approach. The microstructures, morphologies, and electric properties were characterized using X-ray diffraction, scanning electron microscopy, and impedance analysis methods, respectively. The dielectric analyses indicate that the BZT bulk ceramics show characteristics of phase transition from a normal ferroelectric to a relaxor ferroelectric with the increasing Zr4+ ionic content. The electrocaloric effect adiabatic temperature change decreases with the increasing Zr4+ content. The highest adiabatic temperature change obtained is 2.4 K for BZT ceramics with a 5 mol % of Zr4+ ionic content. PMID- 29327582 TI - Uranium(VI) On-Chip Microliter Concentration Measurements in a Highly Extended UV Visible Absorbance Linearity Range. AB - The reduction of effluents deriving from analytical control is a serious concern in the nuclear industry, for both production and R&D units. In this work we report an alternative methodology for the standard UV-vis absorbance analyses for actinides concentration monitoring along the plutonium uranium refining extraction (PUREX) process. This methodology, based on photonic lab-on-a-chip (PhLoC) technology, enables drastic sampling reduction down to a few microliters and simultaneously allows to track concentrations over several orders of magnitude while maintaining a detection linearity range. A PhLoC microfluidic platform was specifically designed to allow online sample injection with zero dead volume connectivity and the on-chip spectrophotometric approach, based on a multiple optical path configuration, was tested for the determination of uranium(VI) concentrations from 0.1 to 200 g L-1, showing that linearity is maintained within high levels of confidence. These results provide the proof of concept for the transposition of current analytical methods for actinides, including plutonium, to microfluidic systems. PMID- 29327583 TI - Asymmetric Total Synthesis of (+)-(3E)-Pinnatifidenyne via Abnormally Regioselective Pd(0)-Catalyzed Endocyclization. AB - The asymmetric total synthesis of the marine natural product (+)-(3E) pinnatifidenyne was accomplished. The key features of the synthesis involve the construction of an eight-membered cyclic ether by the abnormally regioselective Pd(0)-catalyzed cyclization, the installation of a double bond in the oxocene skeleton by sequential in situ deconjugative isomerization, and the efficient introduction of the crucial chloride mediated by the substrate-controlled diastereoselective reduction. PMID- 29327584 TI - Gamma-aminobutyric Acid Enriched Rice Bran Diet Attenuates Insulin Resistance and Balances Energy Expenditure via Modification of Gut Microbiota and Short-Chain Fatty Acids. AB - In this study, gamma-aminobutyric acid (GABA) enriched rice bran (ERB) was supplemented to obese rats to investigate the attenuation of metabolic syndromes induced by high-fat diet. ERB-containing diet stimulated butyrate and propionate production by promoting Anaerostipes, Anaerostipes sp., and associated synthesizing enzymes. This altered short-chain fatty acid (SCFA) distribution further enhanced circulatory levels of leptin and glucagon-like peptide-1, controlling food intake by downregulating orexigenic factors. Together with the enhanced fatty acid beta-oxidation highlighted by Prkaa2, Ppara, and Scd1 expression via AMPK signaling pathway and nonalcoholic fatty liver disease pathway, energy expenditure was positively modulated. Serum lipid compositions showed ERB supplement exhibited a more efficient effect on lowering serum sphingolipids, which was closely associated with the status of insulin resistance. Consistently, genes of Ppp2r3b and Prkcg, involved in the function of ceramides in blocking insulin action, were also downregulated following ERB intervention. Enriched GABA and phenolic acids were supposed to be responsible for the health-beneficial effects. PMID- 29327585 TI - Photoinduced Generation of Acyl Radicals from Simple Aldehydes, Access to 3-Acyl 4-arylcoumarin Derivatives, and Evaluation of Their Antiandrogenic Activities. AB - A novel photocatalysis to construct the 3-acyl-4-arylcoumarin framework from simple aldehyde with ynoate is described. The reaction proceeded through an acyl radical intermediate generated by hydrogen atom abstraction from aldehyde, followed by reaction with ynoate and then cyclization to afford coumarins. This valuable radical cyclization reaction gave over 20 coumarin derivatives in moderate to good yields with inexpensive 2-tBu-anthraquinone as a catalyst. In addition, synthetic coumarins were investigated for 5alpha-dihydrotestosterone (DHT)-induced secretion of prostate-specific antigen (PSA) levels and cell proliferation of androgen-dependent CWR22Rv1 cells. PMID- 29327587 TI - Conformational Impact on Amino Acid-Surface pi-pi Interactions on a (7,7) Single Walled Carbon Nanotube: A Molecular Mechanics Approach. AB - A study of pi-pi interactions between a (7,7) single-walled carbon nanotube (SWNT) and three different aromatic amino acids (AAA), namely l-tyrosine (Tyr), l tryptophan (Trp), and l-phenylalanine (Phe) was conducted with a molecular mechanics (MM) approach. For each of the amino acids we investigated the behavior of six different conformers. We examined the impact of the so-called edge effects by testing the parameters of the built-in switching function in MM. We found the optimal SWNT length to be approximately 80 A for the size of the molecules in our conformational studies. The positional effect of electron withdrawing groups with respect to the aromatic tail was studied to understand the influence of this interaction specific to adsorption strength and geometry. We decomposed the aromatic amino acid-surface interactions into three components: overall energy, aromatic ring, and amino acid head adsorption energies. We found that the ability of the amino acid's head to interact with the surface pi-densities had a greater impact on the overall energy than the amino acid head interaction with its substituent's aromatic ring's pi-electrons. PMID- 29327586 TI - Composite Hydrogel Modified by IGF-1C Domain Improves Stem Cell Therapy for Limb Ischemia. AB - Stem cell treatment for critical limb ischemia yields a limited therapeutic effect due to cell loss and dysfunction caused by local ischemic environment. Biomimetic scaffolds emerge as ideal cell delivery vehicles for regulating cell fate via mimicking the components of stem cell niche. Herein, we prepared a bioactive hydrogel by mixing chitosan and hyaluronic acid that is immobilized with C domain peptide of insulin-like growth factor 1 (IGF-1C) and examined whether this hydrogel could augment stem cell survival and therapeutic potential. Our results showed that IGF-1C-modified hydrogel increased in vitro viability and proangiogenic activity of adipose-derived stromal cells (ADSCs). Moreover, cotransplantation of hydrogel and ADSCs into ischemic hind limbs of mice effectively ameliorated blood perfusion and muscle regeneration, leading to superior limb salvage. These therapeutic effects can be ascribed to improved ADSC retention, angiopoientin-1 secretion, and neovascularization, as well as reduced inflammatory cell infiltration. Additionally, hydrogel enhanced antifibrotic activity of ADSCs, as evidenced by decreased collagen accumulation at late stage. Together, our findings indicate that composite hydrogel modified by IGF-1C could promote survival and proangiogenic capacity of ADSCs and thereby represents a feasible option for cell-based treatment for critical limb ischemia. PMID- 29327588 TI - Directing Oxygen Vacancy Channels in SrFeO2.5 Epitaxial Thin Films. AB - Transition-metal oxides (TMOs) with brownmillerite (BM) structures possess one dimensional oxygen vacancy channels (OVCs), which play a key role in realizing high ionic conduction at low temperatures. The controllability of the vacancy channel orientation, thus, possesses a great potential for practical applications and would provide a better visualization of the diffusion pathways of ions in TMOs. In this study, the orientations of the OVCs in BM-SrFeO2.5 are stabilized along two crystallographic directions of the epitaxial thin films. The distinctively orientated phases are found to be highly stable and exhibit a considerable difference in their electronic structures and optical properties, which could be understood in terms of orbital anisotropy. The control of the OVC orientation further leads to modifications in the hydrogenation of the BM SrFeO2.5 thin films. The results demonstrate a strong correlation between crystallographic orientations, electronic structures, and ionic motion in the BM structure. PMID- 29327589 TI - Transition Metal Dichalcogenide Nanosheets for Visual Monitoring PCR Rivaling a Real-Time PCR Instrument. AB - Monitoring the progress of polymerase chain reactions (PCRs) is of critical importance in bioanalytical chemistry and molecular biology. Although real-time PCR thermocyclers are ideal for this purpose, their high cost has limited their applications in resource-poor areas. Direct visual detection would be a more attractive alternative. To monitor the PCR amplification, DNA-staining dyes, such as SYBR Green I (SG), are often used. Although these dyes give higher fluorescence when binding to double-stranded DNA products, they also yield strong background fluorescence in the presence of a high concentration of single stranded (ss) DNA primers. In this work, we screened various nanomaterials and found that graphene oxide (GO), reduced GO, molybdenum disulfide (MoS2), and tungsten disulfide (WS2) can quench the fluorescence of nonamplified negative samples while still retaining strong fluorescence of positive ones. The signal ratio of positive-over-negative samples was enhanced by around 50-fold in the presence of these materials. In particular, MoS2 and WS2 nearly fully retained the fluorescence of the positive samples. The mechanism for MoS2 and WS2 to enhance PCR signaling is attributed to the adsorption of both the ssDNA PCR primers and SG with an appropriate strength. MoS2 can also suppress nonspecific amplification caused by excess polymerase. Finally, this method was used to detect extracted transgenic soya GTS 40-3-2 DNA after PCR amplification. Compared with the samples without nanomaterials, the addition of MoS2 could better distinguish the concentration difference of the template DNA, and the sensitivity of visual detection rivaled that from a real-time PCR instrument. PMID- 29327590 TI - Simple Strategy for Rapid and Sensitive Detection of Avian Influenza A H7N9 Virus Based on Intensity-Modulated SPR Biosensor and New Generated Antibody. AB - In 2013 a new reassortant avian influenza A H7N9 virus emerged in China, causing human infection with high mortality. An accurate and timely diagnosis is crucial for controlling the outbreaks of the disease. We therefore propose a simple strategy for rapidly and sensitively detecting the H7N9 virus using an intensity modulated surface plasmon resonance (IM-SPR) biosensor integrated with a new generated monoclonal antibody. The novel antibody exhibits significant specificity to recognize H7N9 virus compared with other clinical human influenza isolates (p < 0.01). Experimentally, the detection limit of the proposed approach for H7N9 virus detection is estimated to be 144 copies/mL, which is a 20-fold increase in sensitivity compared with homemade target-captured ELISA using the identical antibody. For the measurement of mimic clinical specimens containing the H7N9 virus mixed with nasal mucosa from flu-like syndrome patients, the detection limit is calculated to be 402 copies/mL, which is better than conventional influenza detection assays; quantitative reverse transcription polymerase chain reaction (qRT-PCR) and rapid influenza diagnostic test (RIDT). Most importantly, the assay time took less than 10 min. Combined, the results of this study indicate that the proposed simple strategy demonstrates high sensitivity and time-saving in H7N9 virus detection. By incorporating a high specific recognizer, the proposed technique has the potential to be used in applications and development of other emerging or re-emerging microbe detection platforms. PMID- 29327591 TI - Post-Ugi Cascade Transformations for Accessing Diverse Chromenopyrrole Collections. AB - Employing a build/couple/pair strategy, a serendipitous one-pot protocol for the diastereoselective construction of diverse collections of chromenopyrroles is described. This methodology features an unprecedented five-step cascade including azomethine ylide generation followed by in situ intramolecular [3 + 2] cycloaddition. Furthermore, this protocol was extended to access enantiopure chromenopyrroles using amino acids as chiral auxiliary. Moreover, postpairing reactions were employed to increase the diversity and complexity of our pilot compound collections. PMID- 29327592 TI - Sulfonium Salts as Alkylating Agents for Palladium-Catalyzed Direct Ortho Alkylation of Anilides and Aromatic Ureas. AB - A novel method for the ortho alkylation of acetanilide and aromatic urea derivatives via C-H activation was developed. Alkyl dibenzothiophenium salts are considered to be new reagents for the palladium-catalyzed C-H activation reaction, which enables the transfer of methyl and other alkyl groups from the sulfonium salt to the aniline derivatives under mild catalytic conditions. PMID- 29327593 TI - The impact of age and gender on the ICF-based assessment of chronic low back pain. AB - PURPOSE: To evaluate the impact of age and gender on the international classification of functioning, disability and health (ICF)-based assessment for chronic low back pain. METHODS: Two hundred forty-four chronic low back pain patients (52% female) with a mean age of 49 years (SD =17.64) were interviewed with the comprehensive ICF core set for activities and participation, and environmental factors. After conducting explorative factor analysis, the impact of age and gender on the different factors was analyzed using analyzes of variances. RESULTS: Results revealed that older patients experienced more limitations within "self-care and mobility" and "walking" but less problems with "transportation" compared to younger patients. Older or middle-aged low back pain patients further perceived more facilitation through "architecture and products for communication", "health services", and "social services and products for mobility" than younger patients. Regarding gender differences, women reported more restriction in "housework" than men. An interaction effect between age and gender was found for "social activities and recreation" with young male patients reporting the highest impairment. CONCLUSIONS: The study demonstrated that the comprehensive ICF core set classification for chronic low back pain is influenced by age and gender. This impact is relevant for ICF-based assessments in clinical practice, and should be considered in intervention planning for rehabilitative programs. Implications for rehabilitation It is important to consider age and gender differences when classifying with the ICF. The intervention planning based on the ICF should focus on improvement of bodily functioning and mobility in older patients, facilitation of household activities in women, consideration of work-life balance and recreation (e.g., through mindfulness based stress reduction), and reduction of dissatisfaction with rehabilitation in younger patients. It is important to offer patients the opportunity to participate in intervention planning based on the ICF. For intervention planning professionals should bear in mind the resource-oriented approach of the ICF (e.g., facilitation through environmental factors), and a collaboration with other professionals. PMID- 29327595 TI - The pretransplant neutrophil-lymphocyte ratio as a new prognostic predictor after liver transplantation for hepatocellular cancer: a systematic review and meta analysis. AB - AIM: Recently, many reports showed that the pretransplant neutrophil-lymphocyte ratio (NLR) may be correlated with the prognosis of patients undergoing liver transplantation (LT) for hepatocellular cancer (HCC). However, their results still remained controversial. Thus we performed a meta-analysis of 13 studies to estimate the prognostic value of pretransplant NLR. METHODS: Databases including PubMed, Embase, Cochrane Library and Web of Science were searched to September 2017. Hazard ratio (HR) or odds ratio (OR) with its 95% CI was used to evaluate the association between elevated NLR and the prognosis or clinical features of liver cancer patients. RESULTS: A total of 13 studies including 1936 patients were included in this meta-analysis. Elevated pretransplant NLR had a close association with the overall survival (HR: 2.22; 95% CI: 1.34-3.68), recurrence free survival (HR: 3.77; 95% CI: 2.01-7.06) and disease-free survival (HR: 2.51; 95% CI: 1.22-5.15) of patients undergoing LT for HCC, respectively. In addition, elevated NLR was associated with the presence of vascular invasion (OR: 2.39; 95% CI: 1.20-4.77) and Milan criteria (OR: 0.26; 95% CI: 0.17-0.40). CONCLUSION: The results of this meta-analysis showed that elevated pretransplant NLR may be used as a new prognostic predictor after LT for HCC. PMID- 29327596 TI - Fertility preservation in BRCA-mutated women: when and how? AB - BRCA 1 and 2 genes play a critical role in the safeguarding of DNA integrity. It is now well established that BRCA1 and BRCA2-mutated women are at increased risk of breast and ovarian cancers. However, several lines of evidence indicate that this genetic status may also be associated with ovarian dysfunction, in particular a reduced ovarian reserve. Considering the gonadal toxicity of cancer treatments and the recommendation of prophylactic bilateral salpingo-oophorectomy around 40 years, young BRCA mutation carriers are confronted with difficult family planning decisions. Recent development in fertility preservation offers new possibilities for these women, not only before a potential cancer treatment, but also in healthy carriers. If the pregnancy seems to be safe in this population, oocyte vitrification following ovarian stimulation might help BRCA mutated patients to conceive after cancer treatment or to undergo prenatal genetic diagnosis in order to avoid the risk of transmitting the genetic abnormality to their offspring. The present article aims to extensively discuss the fertility issues related to BRCA gene mutations and the questions raised by the possibility of fertility in this population. PMID- 29327597 TI - Endothelial cell-derived microvesicles: potential mediators and biomarkers of pathologic processes. AB - This review focuses on the formation, composition and function of endothelial microvesicles (MV), often called microparticles (MP). MV release is a controlled event and is considered a hallmark of cellular activation or alteration. MV may affect the function of target cells through surface interaction and receptor activation, cellular fusion and the delivery of intravesicular cargo. Endothelial MV are released as a consequence of endothelial activation during inflammation and have been described to affect hemostasis, various aspects of inflammatory reaction, vessel formation, apoptosis and cell survival, endothelial cell differentiation and function. Recent data suggest the potential use of MV in diagnostics, assessment of severity and prediction of outcomes in inflammatory diseases and their utilization as targets, mediators and vectors in therapy. PMID- 29327594 TI - Liver Resection and Surgical Strategies for Management of Primary Liver Cancer. AB - Primary liver cancer-including hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC)-incidence is increasing and is an important source of cancer-related mortality worldwide. Management of these cancers, even when localized, is challenging due to the association with underlying liver disease and the complex anatomy of the liver. Although for ICC, surgical resection provides the only potential cure, for HCC, the risks and benefits of the multiple curative intent options must be considered to individualize treatment based upon tumor factors, baseline liver function, and the functional status of the patient. The principles of surgical resection for both HCC and ICC include margin-negative resections with preservation of adequate function of the residual liver. As the safety of surgical resection has improved in recent years, the role of liver resection for HCC has expanded to include selected patients with preserved liver function and small tumors (ablation as an alternative), tumors within Milan criteria (transplant as an alternative), and patients with large (>5 cm) and giant (>10 cm) HCC or with poor prognostic features (for whom surgery is infrequently offered) due to a survival benefit with resection for selected patients. An important surgical consideration specifically for ICC includes the high risk of nodal metastasis, for which portal lymphadenectomy is recommended at the time of hepatectomy for staging. For both diseases, onco-surgical strategies including portal vein embolization and parenchymal-sparing resections have increased the number of patients eligible for curative liver resection by improving patient outcomes. Multidisciplinary evaluation is critical in the management of patients with primary liver cancer to provide and coordinate the best treatments possible for these patients. PMID- 29327598 TI - Sensitivity to change of mobility measures in musculoskeletal conditions on lower extremities in outpatient rehabilitation settings. AB - STUDY DESIGN: Prospective longitudinal study. OBJECTIVE: To examine the sensitivity of the Mobility Activities Measure for lower extremities and to compare it to the sensitivity of the Physical Functioning Scale (PF-10) and the Patient-Specific Functional Scale (PSFS) at week 4 and week 8 post hospitalization in outpatient rehabilitation settings. BACKGROUND: Mobility Activities Measure is a set of short mobility measures to track outpatient rehabilitation progress: its scales have shown good properties but its sensitivity to change has not been reported. METHODS: Patients with musculoskeletal conditions were recruited at admission in three outpatient rehabilitation settings in Spain. Data were collected at admission, week 4 and week 8 from an initial sample of 236 patients (mean age +/- SD = 36.7 +/- 11.1). MAIN OUTCOME MEASURES: Mobility Activities Measure scales for lower extremity; PF 10; and PSFS. RESULTS: All the Mobility Activities Measure scales were sensitive to both positive and negative changes (the Standardized Response Means (SRMs) ranged between 1.05 and 1.53 at week 4, and between 0.63 and 1.47 at week 8). The summary measure encompassing the three Mobility Activities Measure scales detected a higher proportion of participants who had improved beyond the minimal detectable change (MDC) than detected by the PSFS and the PF-10 both at week 4 (86.64% vs. 69.81% and 42.23%, respectively) and week 8 (71.14% vs. 55.65% and 60.81%, respectively). CONCLUSIONS: The three Mobility Activities Measure scales assessing the lower extremity can be used across outpatient rehabilitation settings to provide consistent and sensitive measures of changes in patients' mobility. Implications for rehabilitation All the scales of the Mobility Activities Measure for the lower extremity were sensitive to both positive and negative change across the follow-up periods. Overall, the summary measure encompassing the three Mobility Activities Measure scales for the lower extremity appeared more sensitive to positive changes than the Physical Functioning Scale, especially during the first four weeks of treatment. The summary measure also detected a higher percentage of participants with positive change that exceeded the minimal detectable change than the Patient-Specific Functional Scale and the Physical Functioning Scale at the first follow-up period. By demonstrating their consistency and sensitivity to change, the three Mobility Activities Measures scales can now be considered in order to track patients' functional progress. Mobility Activities Measure can be therefore used in patients with musculoskeletal conditions across outpatient rehabilitation settings to provide estimates of change in mobility activities focusing on the lower extremity. PMID- 29327599 TI - Motor skills, cognition, and work performance of people with severe mental illness. AB - PURPOSE: Employment offers many benefits to people with mental illness, yet their employment rate is much lower than that of the general population. We investigated the effect of work-related motor skills, neurocognition, and job attitudes on the work performance of people with mental illness, comparing those working in sheltered workshops, with controls working in similar jobs. METHODS: Twenty-nine adults with severe mental illness and 27 controls matched by gender and age were enrolled into the study using convenience sampling. They were assessed for gross and fine motor hand functioning, job attitudes, work performance, and cognition. RESULTS: People with mental illness scored lower on work performance, cognitive functioning, and hand dexterity while sitting and working with tools. They were assigned lower job loads than were controls, and perceived the physical environment at work as more constraining than did controls. Assembling motor skills significantly explained the work performance of people with mental illness. CONCLUSIONS: The results expand our understanding of the complexities involved in the employment of people with severe mental illness, and point to new paths for improving vocational outcomes of people with severe mental illness, taking into account their motor skills and job attitudes. Implications for rehabilitation Therapists should be aware that employed people with severe mental illness may have various unmet needs, affecting their work performance and experience of stress. This study results demonstrate importance of motor skills and perception of the work environment for the promotion of vocational outcomes among individuals with severe mental illness. Employment of people with severe mental illness should be viewed from holistic perspective as with general population, rather than focused on traditionally illness-related factors. PMID- 29327600 TI - Population-based serum omentin-1 levels: paradoxical association with cardiometabolic disorders primarily in men. AB - AIM: The conflicting relationships of serum omentin with inflammation markers and cardiometabolic disorders were investigated. Results & methods: Unselected 864 population-based middle-aged adults were cross-sectionally studied by sex specific omentin tertiles. Men in the lowest omentin tertile (T1) had lower systolic blood pressure, HbA1c and glucose values and tended in T3 to higher lipoprotein(a) levels. Logistic regression analysis, adjusted for four covariates, revealed significant independent associations with the presence of hypertension and diabetes only in men. Sex- and age-adjusted odds ratio in gender combined for T2 & T3 versus T1 was 1.34 (95% CI: 1.00-1.79) for metabolic syndrome. DISCUSSION & CONCLUSION: The elicited adverse relationships of omentin 1 support the notion of oxidative stress-induced proinflammatory conversion of omentin, rendering loss of anti-inflammatory properties. PMID- 29327601 TI - Syndecan-1 as a biomarker for sepsis survival after major abdominal surgery. AB - AIM: Sepsis is a serious complication following surgery and identification of patients at risk is of high importance. Syndecan-1 (sSDC1) levels are known to be elevated during sepsis. MATERIALS & METHODS: Fifty-five patients scheduled for major abdominal surgery were prospectively included and sSDC1 concentrations were measured during hospital stay. RESULTS: Patients with postoperative sepsis showed a continued increase of sSDC1 levels and exhibited higher median sSDC1 concentrations at day 1 compared with nonseptic patients 90.3 versus 16.5 ng/ml. A significant association of sSDC1 levels with the incidence of sepsis and death was demonstrated. CONCLUSION: This study identifies sSDC1 as potential biomarker for sepsis and survival after abdominal surgery. PMID- 29327602 TI - Combination Therapy Versus Exercise and Orthotic Support in the Management of Pain in Plantar Fasciitis: A Randomized Controlled Trial. AB - BACKGROUND: This study aimed at estimating the effectiveness of two commonly used modalities-extracorporeal shock wave therapy (ESWT) and low-level laser therapy (LLLT)-each combined with usual care (exercises and orthotic supports) in comparison to only usual care to relieve pain in patients with plantar fasciitis (PF). METHODS: Participants with PF were randomly allocated into 3 groups: ESWT (n = 25), LLLT (n = 24), and control (n = 17). All participants received a home exercise program with orthotic support. The ESWT group received 2000 shock waves with 0.02 mJ/mm2 for 3 sessions, once a week; LLLT group received gallium aluminum-arsenide laser with 850 nm wavelength for 10 sessions, 3 times a week. Pain was measured by Foot Function Index-pain subscale (FFI-p) and Numerical Rating Scale for pain (NRS-p). The scores were recorded at baseline, third week, and third month after the treatment. Analysis was performed using repeated measures ANOVA. RESULTS: There was a significant improvement in pain over the 3 months in all groups on both FFI-p ( P < .001) and NRS-p ( P < .001). In NRS-p, LLLT group had significantly lower pain than ESWT ( P = .002) at the third week and control ( P = .043) and ESWT ( P = .003) at third month. In FFI-p total score, ESWT group had higher pain than LLLT ( P = .003) and control ( P = .035) groups at third week and LLLT ( P = .010) group at third month. CONCLUSION: When LLLT and ESWT were combined with usual care, LLLT was found to be more effective than ESWT in reducing pain in PF at short-term follow-up. LEVEL OF EVIDENCE: Level II, comparative study. PMID- 29327603 TI - A qualitative investigation into the patient-centered goal-setting practices of allied health clinicians working in rehabilitation. AB - OBJECTIVE: To explore the ways clinicians engage rehabilitation patients in patient-centered goal setting and identify factors influencing the goal-setting process. DESIGN: Ethnographic study utilizing observed practice-thematic analysis. SETTING: Four rehabilitation wards of a large metropolitan hospital in Melbourne, Australia. SUBJECTS: Participants included 17 rehabilitation patients, 18 allied health clinicians and one family member. Disciplines represented were speech pathology, occupational therapy, social work and physiotherapy. METHOD: Multiple qualitative methods were used. A total of 18 routine goal-setting interviews between clinicians and patients were audio recorded and transcribed. Together with associated entries in the patient medical record, transcripts were coded and developed into themes using thematic analysis. Finally, focus groups with clinicians were conducted to validate themes identified. RESULTS: Three themes were identified describing factors which influence patient centeredness: "a goal-setting collaboration"-the interpersonal exchange between client and clinician; "the environment"-physical, temporal and structural; and "clinician self-awareness"-clinicians' insight into the ways they influence goal setting. The practice of patient-centered goal setting varied considerably between clinicians. Goals developed were strongly influenced by the clinician's views, although strategies of respect for the patient and reflective listening skills increased patient participation and the patient centeredness of goals developed. CONCLUSION: Goals developed with rehabilitation patients are more likely to be patient-centered when the interaction encourages the patient to express their needs and preferences, and these are heard by the clinician. For this to influence treatment, it must occur in an environment structured to support and value patient-centered goals. PMID- 29327604 TI - Strategies to improve recruitment of people with dementia to research studies. AB - : Background Low participation in research is one of the key challenges to advancing understanding of dementia, and improving the care and treatment of those who live with this condition. Nurses and nurse researchers play a vital role in recruiting people with dementia to studies, as several countries including the United States and the United Kingdom set national targets and develop initiatives to encourage more people with dementia to take part in research. Aim To highlight the challenges to recruiting people with dementia to studies, and to identify strategies that nurses, and in particular, nurse researchers can use for overcoming them. Our focus is primarily on the role of nurses in recruiting people with dementia to dementia studies, but much of the discussion will apply to other health professionals involved in the recruitment of people with dementia to research more generally. Discussion Challenges discussed include a lack of awareness about research participation opportunities and a suitable study partner. We discuss how the nurses' role is to ensure that recruitment practices are personalised and responsive to participants' needs and situation, rather than target driven. The notion of responsible research is used to anchor the discussion. Conclusion Increasing the participation of people with dementia in research is a global priority. Nurses and nurse researchers play an important role in ensuring that people who take part in research have an optimal research experience. IMPLICATIONS FOR PRACTICE: Recruiting people with dementia to research studies is a national priority in many countries. With a greater understanding of the challenges involved and strategies that can be used to overcome them, nurses can have an effective role in the recruitment process and research experience. PMID- 29327605 TI - Does change in isolated lumbar extensor muscle function correlate with good clinical outcome? A secondary analysis of data on change in isolated lumbar extension strength, pain, and disability in chronic low back pain. AB - PURPOSE: Secondary analysis of data from studies utilising isolated lumbar extension exercise interventions for correlations among changes in isolated lumbar extension strength, pain, and disability. MATERIALS AND METHODS: Studies reporting isolated lumbar extension strength changes were examined for inclusion criteria including: (1) participants with chronic low back pain, (2) intervention >= four weeks including isolated lumbar extension exercise, (3) outcome measures including isolated lumbar extension strength, pain (Visual Analogue Scale), and disability (Oswestry Disability Index). Six studies encompassing 281 participants were included. Correlations among change in isolated lumbar extension strength, pain, and disability. Participants were grouped as "met" or "not met" based on minimal clinically important changes and between groups comparisons conducted. RESULTS: Isolated lumbar extension strength and Visual Analogue Scale pooled analysis showed significant weak to moderate correlations (r = -0.391 to -0.539, all p < 0.001). Isolated lumbar extension strength and Oswestry Disability Index pooled analysis showed significant weak correlations (r = -0.349 to -0.470, all p < 0.001). For pain and disability, isolated lumbar extension strength changes were greater for those "met" compared with those "not met" (p < 0.001-0.008). CONCLUSIONS: Improvements in isolated lumbar extension strength may be related to positive and meaningful clinical outcomes. As many other performance outcomes and clinical outcomes are not related, isolated lumbar extension strength change may be a mechanism of action affecting symptom improvement. Implications for Rehabilitation Chronic low back pain is often associated with deconditioning of the lumbar extensor musculature. Isolated lumbar extension exercise has been shown to condition this musculature and also reduce pain and disability. This study shows significant correlations between increases in isolated lumbar extension strength and reductions in pain and disability. Strengthening of the lumbar extensor musculature could be considered an important target for exercise interventions. PMID- 29327606 TI - The effects of joint mobilization on individuals with patellofemoral pain: a systematic review. AB - OBJECTIVE: To investigate and synthesize the effects of joint mobilization on individuals with patellofemoral pain syndrome. DATA SOURCES: Five electronic databases (CINAHL, the Cochrane Central Register of Controlled Trials, PubMed, Scopus, and SPORTDiscus) were used. REVIEW METHODS: Each database was searched from inception to 1 November 2017. Randomized controlled trials investigating a manual therapy intervention, with or without co-interventions, for persons with patellofemoral pain were included. Two reviewers independently screened the retrieved literature and appraised the quality of the selected studies using the PEDro rating scale. A third reviewer was used in cases of discrepancy to create a consensus. RESULTS: A total of 361 articles were identified in the search. Twelve randomized trials with a total of 499 participants were selected for full review. Within-group improvements in pain and function were noted for the manual therapy groups. Between-group improvements for short-term outcomes (three months or less) were greatest when joint mobilization was directed to the knee complex and used as part of a comprehensive approach. CONCLUSION: In the articles reviewed, joint mobilization appears to be most effective in improving pain and function when coupled with other interventions, although its discrete effect is unclear due to the reviewed studies' design and reporting. PMID- 29327607 TI - Up-regulation of Cav3.1 expression in SH-SY5Y cells induced by lidocaine hydrochloride. AB - BACKGROUND: Neurotoxicity induced by the local anaesthetics has aroused concern. A previous study has shown that an overload of intracellular calcium was involved in the neurotoxic effect. Cav3.1 is one of the low-voltage-activated (LVA) calcium channels which play a key point to regulate the intracellular calcium ion level. This study aimed to investigate the changes of the Cav3.1 expression in the SH-SY5Y cells treated with lidocaine hydrochloride. METHODS: The SH-SY5Y cells were treated with different concentrations of lidocaine hydrochloride(1 mM, 5 mM and 10 mM, namely L1 group, L5 group and L10 group) and different exposure times (1 h,12 h and 24 h), respectively. Cell viability, Cav3.1 protein and mRNA expression were detected. RESULTS: The results showed that cell viability decreased and Cav3.1 mRNA and protein expression increased with the concentration (from 1 mM to 10 mM) of the lidocaine hydrochloride and exposure time (from 1 h to 24 h) to the SH-SY5Y cell line increased. CONCLUSION: Those data showed that lidocaine hydrochloride induced SH-SY5Y cell toxicity and up-regulated Cav3.1mRNA and protein expression. PMID- 29327609 TI - Cross-bridge mechanism of residual force enhancement after stretching in a skeletal muscle. AB - A muscle model that uses a modified Langevin equation with actomyosin potentials was used to describe the residual force enhancement after active stretching. Considering that the new model uses cross-bridge theory to describe the residual force enhancement, it is different from other models that use passive stretching elements. Residual force enhancement was simulated using a half sarcomere comprising 100 myosin molecules. In this paper, impulse is defined as the integral of an excess force from the steady isometric force over the time interval for which a stretch is applied. The impulse was calculated from the force response due to fast and slow muscle stretches to demonstrate the viscoelastic property of the cross-bridges. A cross-bridge mechanism was proposed as a way to describe the residual force enhancement on the basis of the impulse results with reference to the compliance of the actin filament. It was assumed that the period of the actin potential increased by 0.5% and the amplitude of the potential decreased by 0.5% when the half sarcomere was stretched by 10%. The residual force enhancement after 21.0% sarcomere stretching was 6.9% of the maximum isometric force of the muscle; this value was due to the increase in the number of cross-bridges. PMID- 29327608 TI - Pregnancy outcomes of women with spina bifida. AB - PURPOSE: To assess the pregnancy outcomes of women with spina bifida. MATERIALS AND METHODS: We analyzed a population-based cohort of 397 pregnant women with spina bifida and 1,083,211 without spina bifida who delivered infants in hospitals in Quebec, Canada, 1989-2013. Outcomes included maternal and infant morbidity and mortality at delivery. We used log-binomial regression models to estimate prevalence ratios (PR) and 95% confidence intervals (CI) for the association of maternal spina bifida with pregnancy outcomes, accounting for maternal characteristics. RESULTS: Women with spina bifida had a higher prevalence of several adverse outcomes compared with women who had no birth defects. Maternal risks were highest for intensive care unit admission during the delivery hospitalization (PR 3.41, CI 95% 1.56-7.43) and respiratory morbidity (PR 9.46, CI 95% 3.31-26.99). Infant risks were greatest for intracranial hemorrhage (PR 6.85, CI 95% 2.23-21.08), birth hypoxia (PR 1.64, CI 95% 1.21 2.22), and hospital length of stay >=14 days (PR 2.56, CI 95% 1.58-4.15). After adjustment for confounders, maternal spina bifida was associated with risk of oral clefts and abdominal wall defects in infants. CONCLUSIONS: Women with spina bifida have an increased risk of severe maternal and infant complications at delivery, compared with no spina bifida. Implications for Rehabilitation A growing number of women with spina bifida achieve pregnancy, but pregnancy outcomes are poorly understood. In a large pregnancy cohort, women with spina bifida had a high risk of severe maternal and infant morbidity at delivery. Women with spina bifida may benefit from enhanced periconceptional counseling and obstetric monitoring by health professionals. Guidelines should be developed for rehabilitation care providers to improve the obstetric management of women with spina bifida. PMID- 29327610 TI - The 44th Congress of the International Society of Oncology and Biomarkers: Rio de Janeiro, Brazil, 7-10 September 2017. AB - The 44th Congress of the International Society of Oncology and Biomarkers: Rio de Janeiro, Brazil, 7-10 September 2017 The 44th congress followed the previous one of International Society of Oncology and Biomarkers (ISOBM) that took place in Chicago (USA) in 2016. The title of the 44th Annual congress was: 'Biomarkers in oncology: new horizons and challenges in the diagnosis and treatment of cancer' [ 1 ]. The congress was co-organized by ISOBM, European Group on Tumor Markers (EGTM) and Brazilian Society of Clinical Pathology SBPC/ML. The event attracted more than 180 participants from all over the world. The program offered many topics regarding discovery, validation, evaluation and use of tumor biomarkers. The presentations were split into the key note lectures, oral presentations, poster presentations and satellite symposiums sponsored by companies. The congress offered participants the opportunity to link clinical and research oncologists to discuss new tools for diagnosis and monitoring of cancer diseases. Prominent people in the field of cancer research and clinical oncology were presented and offered the unique opportunity to exchange experiences and knowledge in an international forum [ 2 ]. Compared with previous ISOBM congresses, it was held in Latin America for the first time, and due to that more participants from Latin America were present. PMID- 29327611 TI - miRNA-20a upregulates TAK1 and increases proliferation in osteosarcoma cells. AB - AIM: The aim of this study is to explore the function of miR-20a in osteosarcoma. MATERIALS & METHODS: miR-20a expression was measured by real-time PCR. miR-20a mimics, inhibitor and scramble siRNA were transfected into osteosarcoma cells to observe effects on colony formation and tumor growth. Moreover, relationships of miR-20a with TAK1 were investigated by western blot and luciferase activity. RESULTS: We found that miR-20a was downregulated in osteosarcoma, and overexpression of miR-20a reduced colony formation and tumor growth. Furthermore, the data revealed that the function of miR-20a was probably exerted via targeting the TAK1 expression. Overexpression of miR-20a sensitizes the osteosarcoma cells to chemotherapeutic drugs. CONCLUSION: Our data identify the role of miR-20a in osteosarcoma growth, indicating its potential application in chemotherapy. PMID- 29327612 TI - The evidence for expanded genetic testing for pediatric patients with cancer. PMID- 29327614 TI - Intracellular African swine fever virus DNA remains unmethylated in infected Vero cells. AB - AIM: Sequence-specific CpG methylation of eukaryotic promoters is an important epigenetic signal for long-term gene silencing. We have now studied the methylation status of African swine fever virus (ASFV) DNA at various times after infection of Vero cells in culture. METHODS & RESULTS: ASFV DNA was detectable throughout the infection cycle and was found unmethylated in productively infected Vero cells as documented by bisulfite sequencing of 13 viral DNA segments. CONCLUSION: ASFV DNA does not become de novo methylated in the course of infection in selected segments spread across the entire genome. Thus DNA methylation does not interfere with ASFV genome transcription. Lack of de novo methylation has previously been observed for free intracellular viral DNA in cells permissively infected with human adenoviruses, with human papillomaviruses and others. PMID- 29327615 TI - Corrigendum. PMID- 29327613 TI - Potential immunotherapies for sarcoidosis. AB - INTRODUCTION: Sarcoidosis is a chronic granulomatous inflammatory disease that commonly causes lung disease, but can affect other vital organs and tissues. The cause of sarcoidosis is unknown, and current therapies are commonly limited by lack of efficacy, adverse side effects, and excessive cost. Areas covered: The manuscript will provide a review of current concepts relating to the pathogenesis of sarcoidosis, and how these disease mechanisms may be leveraged to develop more effective treatments for sarcoidosis. It provides only a brief summary of currently accepted therapy, while focusing more extensively on potential novel therapies. Expert opinion: Current sarcoidosis therapeutic agents primarily target the M1 or pro-inflammatory pathways. Agents that prevent M2 polarization, a regulatory phenotype favoring fibrosis, are attractive treatment alternatives that could potentially prevent fibrosis and associated life threatening complications. Effective treatment of sarcoidosis potentially requires simultaneous modulation both M1/M2 polarization instead of suppressing one pathway over the other to restore immune competent and inactive (M0) macrophages. PMID- 29327616 TI - Nintedanib for the treatment of idiopathic pulmonary fibrosis. AB - INTRODUCTION: Idiopathic Pulmonary Fibrosis (IPF) is an interstitial lung disease characterized by the progressive loss of pulmonary function, ultimately leading to respiratory failure and death. Two novel compounds, nintedanib and pirfenidone, have shown efficacy in reducing the rate of decline of lung function in IPF patients. The multiple tyrosine kinase inhibitor nintedanib has extensively being studied as a potential angiogenesis inhibitor in clinical against various neoplastic disorders. Afterwards, this compound was successfully tested in IPF. Areas covered: Herein, the authors review the working mechanisms of nintedanib, its pharmacological profile, and its efficacy and safety for patients with IPF. Expert opinion: Nintedanib has shown to be safe and effective in patients with IPF, with a favorable long-term safety profile. There is a lack of comparative trials of pirfenidone and nintedanib, and the choice of treatment is left to the physicians' judgement. Future directions of nintedanib use are represented by the treatment of progressive fibrosing interstitial lung disease other than IPF, IPF with advanced functional impairment, and lung fibrosis secondary to connective tissue diseases. A promising safety profile for the combinational use of nintedanib and pirfenidone in IPF has also recently emerged. PMID- 29327618 TI - Between Freud's Second and Third Essays on Sexuality: Commentary on Hansbury. PMID- 29327617 TI - Presence, Mourning, and Beauty: Elements of Analytic Process. AB - Analyst and patient occasionally arrive at moments of heightened meaning and aliveness. These moments can be transformative and lead to psychic change in the patient. They give life and arouse hope, and feel "real" in a new way, though often entailing emotional turbulence. Specific internal work must be done by the analyst to allow for and foster these experiences. This involves a kind of mourning process in the analyst that allows for "presence" and "availability" as described by Gabriel Marcel, and for the "at-one-ment" described by Bion. These transforming moments can be viewed in an aesthetic realm, along the lines of Keats's "Beauty is truth, truth beauty." This embodies the analytic value of emotional truth. These moments are shared and their emergence is an intersubjective creation. Clinical illustrations show how the internal work of mourning by the analyst through directed introspection allows for presence and availability, and then for shared moments of beauty with the patient. PMID- 29327619 TI - Body and Symbol: Introduction to Hansbury and Commentators. PMID- 29327623 TI - Pussy RIOT: Commentary on Hansbury. PMID- 29327627 TI - The Edge is a Horizon: Commentary on Hansbury. PMID- 29327629 TI - The Masculine Vaginal: Working With Queer Men's Embodiment at the Transgender Edge. AB - Turning away from the conspicuous phenomena of transgender experience, with an eye toward locating and illuminating the transgender edge in cisgender, this paper explores the relationship between men and the Vaginal, both material and fantasized. Positing the Vaginal as a counterpart to the Phallic allows a delinkage of vaginal psychic and embodied states from the strictly female so that, like the Phallic, they can be accessed by people of all genders and sexes. This concept goes beyond the conceptual to the fleshy, embodied experience of many transgender men, who live in whole, partial, and/or temporary "female" bodies. It can also be applied to the physio-psychic reality of many cisgender men. Included is a discussion of a case in which a gay cisgender male patient experiences and fantasizes his anus as a vagina. PMID- 29327630 TI - The Specter of the Primitive. AB - Traditional psychoanalytic theories of development hold that the adult neurotic can regress, or has already regressed, to the childhood arrests and/or fixations in which his pathology originated. More recent critiques have called this possibility into question. It is unlikely that anyone can roll back the additions and modifications of lifespan development in a full-fledged return to the needs, wishes, and anxieties of childhood. By regression, though, some analysts mean not a full-fledged return to an earlier developmental phase, but a non-phase-specific slip into primitive fantasies and defenses. The operational term, in this particular variation, is not regression but primitive. The shift from the depressive to the paranoid-schizoid position is, for instance, considered not a phase-specific regression but a regression to primitive forms of mentation. The psychoanalytic conception of the primitive originated in Freud's reading of late nineteenth and early twentieth century anthropology. Freud and later Klein believed that the neurotic regresses to a psychological childhood, which in turn preserves the thought patterns of our prehistoric ancestors. Although this proposition and the underlying principle of recapitulation have been disproven, its traces are nonetheless preserved in what are termed the primary processes and primitive defenses. A tradition of theoretical critique and developmental research, however, shows that the primary processes and primitive defenses are not in fact primitive. That is, they are neither evolutionarily nor developmentally primary in human life. By implication, psychoanalysis should discard the term primitive and adopt a lifespan approach to the processes it describes. PMID- 29327631 TI - The association between adverse childhood experiences and adult traumatic brain injury/concussion: a scoping review. AB - BACKGROUND: Adverse childhood experiences are significant risk factors for physical and mental illnesses in adulthood. Traumatic brain injury/concussion is a challenging condition where pre-injury factors may affect recovery. The association between childhood adversity and traumatic brain injury/concussion has not been previously reviewed. The research question addressed is: What is known from the existing literature about the association between adverse childhood experiences and traumatic brain injury/concussion in adults? METHODS: All original studies of any type published in English since 2007 on adverse childhood experiences and traumatic brain injury/concussion outcomes were included. The literature search was conducted in multiple electronic databases. Arksey and O'Malley and Levac et al.'s scoping review frameworks were used. Two reviewers independently completed screening and data abstraction. RESULTS: The review yielded six observational studies. Included studies were limited to incarcerated or homeless samples, and individuals at high-risk of or with mental illnesses. Across studies, methods for childhood adversity and traumatic brain injury/concussion assessment were heterogeneous. DISCUSSION: A positive association between adverse childhood experiences and traumatic brain injury occurrence was identified. The review highlights the importance of screening and treatment of adverse childhood experiences. Future research should extend to the general population and implications on injury recovery. Implications for rehabilitation Exposure to adverse childhood experiences is associated with increased risk of traumatic brain injury. Specific types of adverse childhood experiences associated with risk of traumatic brain injury include childhood physical abuse, psychological abuse, household member incarceration, and household member drug abuse. Clinicians and researchers should inquire about adverse childhood experiences in all people with traumatic brain injury as pre injury health conditions can affect recovery. PMID- 29327632 TI - Defining the target: Competency-based medical education for better patient care. PMID- 29327634 TI - Clearing the confusion about self-directed learning and self-regulated learning. AB - Self-Directed Learning (SDL) and Self-Regulated Learning (SRL) are often used without a clear distinction, leading to confusion in understanding and the use of inappropriate measurement tools. SDL is a general approach to learning and can be identified using 'aptitude' questionnaires but SRL is a dynamic and context specific learning process and requires 'event' measures, such as microanalysis. These differences have implications for research and remediation. PMID- 29327633 TI - Biochemical basis for the age-related sensitivity of broilers to aflatoxin B1. AB - In this study, we investigated the mechanism underlying age-related susceptibility in broilers to aflatoxin B1 (AFB1). The results showed that AFB1 induced significant changes in serum alkaline phosphatase (ALP), alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma-glutamyl transferase (GGT) activity & liver superoxide dismutase (SOD), malonaldehyde (MDA), glutathione peroxidase (GSH-Px) and glutathione S-transferase (GST) activity at day 7, 21 and 42 relative to control group. However, AFB1-induced changes in serum biochemical parameters and liver antioxidant activities become less severe with increasing age of broilers. Particularly, liver cytosolic GST activity increases with the age of broilers, crucial for the detoxification of AFB1. The mRNA expression level of Cytochrome P450 (CYP) enzymes was significantly higher at day 7, and decreases at day 21 and 42. While, the mRNA expression level of liver GSTA3, GSTA4 and EPHX1 increases with age of broilers. Maximum AFB1 residues level was detected at day 42 relative to day 7 and 21. While, AFM1 residues level increases (p < 0.05) from day 7 to 21, but decreases (p > 0.05) at day 42. Most importantly, our data confirmed the efficient AFB1 bioactivation by CYP enzymes and deficient detoxification of GST enzymes at younger age (~7-day old) compared to older age. In summary, the age-related changes particularly in phase-I and phase-II enzymes mainly responsible for AFB1 bioactivation and detoxification may be partially accountable for the increased susceptibility of younger broilers (~7-day old) compared to older broilers. PMID- 29327635 TI - An open label clinical trial of thalidomide in NSAIDs refractory ankylosing spondylitis. PMID- 29327636 TI - The Norwegian occupational wholeness questionnaire (N-OWQ): Scale development and psychometric properties. AB - BACKGROUND: Occupational therapy has long emphasized the concepts doing, being, becoming and belonging, and a notion of balance between them. Measures of these concepts are in a developing stage. AIM: This study aimed to develop and examine the properties of the Norwegian version of the Occupational Wholeness Questionnaire (N-OWQ), which is proposed to measure being, becoming, and belonging, in addition to occupational wholeness as a higher-order concept. METHODS: An anonymous sample of 248 persons over the age of 18 years completed the N-OWQ along with sociodemographic information. Principal Components Analysis (PCA) was performed on the scale items when examining factor structure. Item reduction was based on considerations of communalities, factor loadings, scale consistency if item deleted, and conceptual issues. Internal consistency was assessed with Cronbach's alpha. RESULTS: Following the PCA, the 'Being' and 'Becoming' scales merged into one five-item 'Self' scale (Cronbach's alpha 0.77). The 'Belonging' scale items were split into two scales comprised by three items each: 'Closeness' (Cronbach's alpha 0.70) and 'Relatedness' (Cronbach's alpha 0.73). CONCLUSIONS: The revised N-OWQ merged the 'Being' and 'Becoming' items into one factor, whereas the 'Belonging' items were split into two distinct factors. Internal consistency for all scales were satisfactory. PMID- 29327637 TI - Evidence of shallow mitochondrial divergence in the slender armorhead, Pentaceros wheeleri (Pisces, Pentacerotidae) from the Emperor Seamount Chain. AB - Competitive overexploitation of the slender armorhead, Pentaceros wheeleri, a deep-sea fish inhabiting the Emperor Seamount Chain caused a serious population decline. Therefore, it is urgently necessary to clarify its genetic diversity and connectivity among populations of P. wheeleri for appropriate stock management. For this, we compared 677 base pairs (bp) of mitochondrial (mt) DNA control region (CR) sequences of 80 individuals from three seamounts (the Milwaukee, Kinmei, and Koko Seamounts) in the southern part of the Emperor Seamount Chain. Contrary to our expectation, the three seamount populations showed high genetic diversity, not yet reflecting effects from the recent population decline or due to mixed two clades. Analysis of molecular variance indicated no significant genetic differentiation between seamount populations, however, the neighbour joining tree and minimum spanning network showed significant separation into two clades (K2P distance= 1.2-3.2%, phist = 0.5739, p < .05) regardless of seamount. The divergence time between the two clades was estimated to be 0.3-0.8 Mya, during the period of Pleistocene glacial cycles, suggesting that associated environmental changes and the unique life history traits of Pentaceros spp. might have resulted in the initiation of divergence between these clades. PMID- 29327638 TI - Hybrid and surgical procedures for the treatment of persistent and longstanding persistent atrial fibrillation. AB - INTRODUCTION: Atrial fibrillation (AF) is the most common cardiac arrhythmia. The incidence of AF increases with age and is associated with increased stroke, heart failure and mortality. Persistent and long standing persistent AF is difficult to treat and often refractory to medical therapy and catheter ablation. Areas covered: This article reviews the historical development of the surgical Cox-MAZE procedure and current hybrid and minimally invasive surgical approaches for the treatment of persistent and long standing persistent AF. The role of concomitant pulmonary vein isolation and left atrial appendage (LAA) exclusion will also be reviewed. Expert commentary: An ablation pattern emulating the Cox-Maze surgical procedure is commonly needed to obtain maintenance of sinus rhythm in patients with persistent and long standing persistent atrial fibrillation. Minimally invasive bilateral thorascopic surgical procedures can achieve a similar Cox-Maze lesion set, but are associated with increased adverse events compared to catheter ablation. Future prospective randomized studies are required to confirm whether the recently developed hybrid subxyphoid epicardial/endocardial procedure and percutaneous LAA ligation and catheter ablation are indeed as effective as surgical options with less adverse events. PMID- 29327639 TI - Levels of uric acid in erectile dysfunction of different aetiology. AB - Erectile dysfunction is a common disease characterized by endothelial dysfunction. The aetiology of ED is often multifactorial but evidence is being accumulated in favor of the proper function of the vascular endothelium that is essential to achieving and maintaining penile erection. Uric acid itself causes endothelial dysfunction via decreased nitric oxide production. This study aims to evaluate the serum uric acid (SUA) levels in 180 ED patients, diagnosed with the International Index of Erectile Function-5 (IIEF-5) and 30 non-ED control. Serum uric acid was analyzed with a commercially available kit using ModularEVO (Roche, Monza, Italy). Within-assay and between-assay variations were 3.0% and 6.0%, respectively. Out of the ED patients, 85 were classified as arteriogenic (A-ED) and 95 as non-arteriogenic (NA-ED) with penile-echo-color-Doppler. Uric acid levels (median and range in mg/dL) in A-ED patients (5.8, 4.3-7.5) were significantly higher (p < .001) than in NA-ED patients (4.4, 2.6-5.9) and in control group (4.6, 3.1-7.2). There was a significant difference (p < .001) between uric acid levels in patients with mild A-ED (IIEF-5 16-20) and severe/complete A-ED (IIEF-5 <= 10) that were 5.4 (range 4.3-6.5) mg/dL and 6.8 (range 6.4-7.2) mg/dL, respectively. There was no difference between the levels of uric acid in patients with different degree of NA-ED. Our findings reveal that SUA is a marker of ED but only of ED of arteriogenic aetiology. PMID- 29327640 TI - Who should be responsible for supporting individuals with mental health problems? A critical literature review. AB - BACKGROUND: Individuals with mental health problems have many support needs that are often inadequately met; however, perceptions of who should be responsible for meeting these needs have been largely unexplored. Varying perceptions may influence whether, how, and to what extent relevant stakeholders support individuals with mental health problems. AIMS: To critically evaluate the literature to determine who different stakeholders believe should be responsible for supporting individuals with mental health problems, what factors shape these perceptions, and how they relate to one another. METHOD: A critical literature review was undertaken. Following an extensive literature search, the conceptual contributions of relevant works were critically evaluated. A concept map was created to build a conceptual framework of the topic. RESULTS: Views of individual versus societal responsibility for need provision and health; the morality of caring; and attributions of responsibility for mental illness offered valuable understandings of the review questions. Creating a concept map revealed that various interrelated factors may influence perceptions of responsibility. CONCLUSIONS: Varying perceptions of who should be responsible for supporting individuals with mental health problems may contribute to unmet support needs among this group. Our critical review helps build a much-needed conceptual framework of factors influencing perceptions of responsibility. Such a framework is essential as these views iteratively shape and reflect the complex divisions of mental healthcare roles and responsibilities. Understanding these perceptions can help define relevant stakeholders' roles more clearly, which can improve mental health services and strengthen stakeholder accountability. PMID- 29327642 TI - Effects of Arm Cycling Exercise in Spinal Muscular Atrophy Type II Patients: A Pilot Study. AB - Exercise studies in neuromuscular diseases like spinal muscular atrophy (SMA), a devastating disease caused by survival of motor neuron 1 ( SMN1) gene mutations, are drawing attention due to its beneficial effects. In this study, we presented a constructed arm cycling exercise protocol and evaluated the benefits on SMA patients. Five SMA type II patients performed 12 weeks of supervised arm cycling exercise. The physical functions were evaluated together with the SMN2 copy numbers, SMN protein levels, insulin-like growth factor 1(IGF1) and binding protein 3 (IGFBP3) levels. The active cycling distance and duration of patients significantly improved. Significant changes could not have detected either SMN or IGF1 and IGFBP3 levels in response to exercise. The findings demonstrated that the patients tolerated the exercise protocol and gained a benefit from arm cycling but benefits could not be associated with SMN2 copy number, SMN protein level, IGF1, or IGFBP3 levels. PMID- 29327643 TI - Adherence to biologics in patients with psoriasis. AB - INTRODUCTION: Psoriasis has a profound impact on patients' lives, but adherence to topical treatment of psoriasis is still poor. Biologic treatment has revolutionized the management of psoriasis, but adherence to treatment may still be a barrier for some patients. Areas covered: A PubMed search was conducted in August 2017 using the terms 'biologics psoriasis adherence' and 'biologics psoriasis survival.' Additional articles were obtained by perusing the references of articles identified in the original PubMed search. Articles that did not specifically mention 'survival,' 'adherence,' or 'persistence' were not included. We review the measures used to assess adherence to biologics for psoriasis and the factors impacting drug survival and adherence rates for biologics in psoriasis. Expert commentary: Drug survival and adherence rates for biologic therapy is less than ideal but may be modifiable. Means that may improve adherence and drug survival include individualized choice of biologic and providing additional support for patients who are at increased risk for prematurely stopping treatment. PMID- 29327641 TI - Generation of an arrayed CRISPR-Cas9 library targeting epigenetic regulators: from high-content screens to in vivo assays. AB - The CRISPR-Cas9 system has revolutionized genome engineering, allowing precise modification of DNA in various organisms. The most popular method for conducting CRISPR-based functional screens involves the use of pooled lentiviral libraries in selection screens coupled with next-generation sequencing. Screens employing genome-scale pooled small guide RNA (sgRNA) libraries are demanding, particularly when complex assays are used. Furthermore, pooled libraries are not suitable for microscopy-based high-content screens or for systematic interrogation of protein function. To overcome these limitations and exploit CRISPR-based technologies to comprehensively investigate epigenetic mechanisms, we have generated a focused sgRNA library targeting 450 epigenetic regulators with multiple sgRNAs in human cells. The lentiviral library is available both in an arrayed and pooled format and allows temporally-controlled induction of gene knock-out. Characterization of the library showed high editing activity of most sgRNAs and efficient knock-out at the protein level in polyclonal populations. The sgRNA library can be used for both selection and high-content screens, as well as for targeted investigation of selected proteins without requiring isolation of knock-out clones. Using a variety of functional assays we show that the library is suitable for both in vitro and in vivo applications, representing a unique resource to study epigenetic mechanisms in physiological and pathological conditions. PMID- 29327644 TI - Evaluation of supervised multimodal prehabilitation programme in cancer patients undergoing colorectal resection: a randomized control trial. AB - BACKGROUND: Prehabilitation has been previously shown to be more effective in enhancing postoperative functional capacity than rehabilitation alone. The purpose of this study was to determine whether a weekly supervised exercise session could provide further benefit to our current prehabilition program, when comparing to standard post-surgical rehabilitation. METHODS: A parallel-arm single-blind randomized control trial was conducted in patients scheduled for non metastatic colorectal cancer resection. Patients were assigned to either a once weekly supervised prehabilitation (PREHAB+, n = 41) or standard rehabilitation (REHAB, n = 39) program. Both multimodal programs were home-based program and consisted of moderate intensity aerobic and resistance exercise, nutrition counseling with daily whey protein supplementation and anxiety-reduction strategies. Perioperative care was standardized for both groups as per enhanced recovery after surgery (ERAS(r)) guidelines. Functional exercise capacity, as determined by the 6-minute walk test distance (6MWD), was the primary outcome. Exercise quantity, intensity and energy expenditure was determined by the CHAMPS questionnaire. RESULTS: Both groups were comparable for baseline walking capacity (PREHAB+: 448 m [IQR 375-525] vs. REHAB: 461 m [419-556], p=.775) and included a similar proportion of patients who improved walking capacity (>20 m) during the preoperative period (PREHAB+: 54% vs. REHAB: 38%, p = .222). After surgery, changes in 6MWD were also similar in both groups. In PREHAB+, however, there was a significant association between physical activity energy expenditure and 6MWD (p < .01). Previously inactive patients were more likely to improve functional capacity due to PREHAB+ (OR 7.07 [95% CI 1.10-45.51]). CONCLUSIONS: The addition of a weekly supervised exercise session to our current prehabilitation program did not further enhance postoperative walking capacity when compared to standard REHAB care. Sedentary patients, however, seemed more likely to benefit from PREHAB+. An association was found between energy spent in physical activity and 6MWD. This information is important to consider when designing cost-effective prehabilitation programs. PMID- 29327645 TI - Identification and characterization of chitinolytic bacteria isolated from a freshwater lake. AB - To develop a novel type of biocontrol agent, we focus on bacteria that are characterized by both chitinase activity and biofilm development. Chitinolytic bacteria were isolated from sediments and chitin flakes immersed in the water of a sand dune lake, Sakata, in Niigata, Japan. Thirty-one isolates from more than 5100 isolated strains were examined chitinase activity and biofilm formation. Phylogenetic analysis of these isolates based on the 16S rRNA gene sequences revealed that most isolates belonged to the family Aeromonadaceae, followed by Paenibacillaceae, Enterobacteriaceae, and Neisseriaceae. The specific activity of chitinase of four selected strains was higher than that of a reference strain. The molecular size of one chitinase produced by Andreprevotia was greater than that of typical bacterial chitinases. The dialyzed culture supernatant containing chitinases of the four strains suppressed hyphal growth of Trichoderma reesei. These results indicate that these four strains are good candidates for biocontrol agents. PMID- 29327646 TI - Late Blight Resistance Screening of Major Wild Swedish Solanum Species: S. dulcamara, S. nigrum, and S. physalifolium. AB - To understand the contribution of wild Solanum species to the epidemiology of potato late blight in Sweden, we characterized the resistance of the three putative alternative hosts: S. physalifolium, S. nigrum, and S. dulcamara to Phytophthora infestans, the causal agent of late blight. The pathogen sporulated in all 10 investigated S. physalifolium genotypes, suggesting susceptibility (S phenotype). Field-grown S. physalifolium was naturally infected but could regrow, though highly infected genotypes were smaller at the end of the season. In 75 S. nigrum genotypes, there were no symptoms (R phenotype) or a lesion restricted to the point of inoculation (RN phenotype), indicating resistance. In 164 S. dulcamara genotypes, most resistance variability was found within sibling groups. In addition to the three resistance phenotypes (R, RN, and S), in S. dulcamara a fourth new resistance phenotype (SL) was identified with lesions larger than the point of inoculation but without visible sporulation of the pathogen. Quantitative PCR confirmed P. infestans growth difference in RN, SL, and S phenotypes. Thus, in Sweden S. physalifolium is susceptible and could be a player in epidemiology. A limited role of S. dulcamara leaves in the epidemiology of late blight was suggested, since no major symptoms have been found in the field. PMID- 29327647 TI - Afrina sporoboliae sp. n. (Nematoda: Anguinidae) Associated with Sporobolus cryptandrus from Idaho, United States: Phylogenetic Relationships and Population Structure. AB - The dropseed gall-forming nematode, Afrina sporoboliae sp. n., is described from seed galls of Sporobolus cryptandrus (Poaceae: Chloridoideae: Sporobolinae) collected in Idaho, USA. This is the third report of an Afrina species in North America and the first report of this genus in a natural plant population on this continent. Morphological, morphometric, and molecular analyses placed this nematode in genus Afrina and demonstrated that it differs from Afrina hyparrheniae and Afrina spermophaga by having longer body and stylet lengths for females and males, and from Afrina wevelli by the absence of tip irregularities on the tails of female and presence of lips noticeably protruding beyond the body contour. The new species has several characters that overlap with Afrina tumefaciens, but differs from this species by inducing seed galls, whereas Afrina tumefaciens induces ovoid galls on stems, leaves, and in flower heads. Evolutionary relationships of Afrina sporoboliae sp. n. with other representatives of the family Anguinidae are presented based on analysis of the internal transcribed spacer (ITS)1-5.8S-ITS2 rRNA and the D2-D3 regions of the rRNA genes. Analysis of 270 sequences of the cox1 gene from 25 populations of Afrina sporoboliae sp. n. revealed seven haplotypes with sequence divergence up to 5%. This study did not demonstrate a significant positive relationship between genetic difference and geographic distance. Seed gall nematodes are important quarantine pests in many countries. The association of this and other seed gall nematodes with Rathayibacter species and their ability to serve as vectors, especially of R. toxicus, is of concern for U.S. agriculture. PMID- 29327648 TI - The Goniometer Device: Special Equipment Designed for Symmetric Mammoplasty Planning and Photo-Symmetry Analysis Technique. AB - INTRODUCTION: Preoperative planning is an essential prerequisite for the success of plastic surgery. In procedures such as breast reduction, freehand drawings may be associated with a number of challenges during the determination of axes vertical and parallel to the surgical site. Furthermore, many procedures involve subjective maneuvers, such as attempts aimed at positioning both nipples on the same line and transferring nipple-areola complexes in a well-matched manner. Our newly designed instrument, that is, the goniometer (TG), aims to ensure metric measurements appropriate for the axes, and it may also be used in circumstances that require angle measurements. Moreover, it incorporates a canal system to facilitate surgical designing of the area, to which the nipple-areola complex will be transferred. METHOD: From April 2013 to September 2015, TG device was used in superior pedicle breast reduction operation of 96 patients and 50 of them were randomly selected for the purpose of study analyses. An additional randomly selected 50 patients, in whom surgical planning was based on conventional techniques were served as controls. At postoperative 1 year, symmetry analysis was carried out on patient photographs. RESULTS: No partial or total necrosis occurred at the nipple-areola complex, and symmetrical volume and shape could be achieved in all cases. TG device exhibited superiority in all criteria used for postoperative symmetry analyses (P < .05). CONCLUSION: We believe that this device may effectively accelerate the planning process in various types of plastic and aesthetic operations and may help ensure symmetry, especially in reduction mammoplasty and mastopexy. PMID- 29327649 TI - The effect of auditory stimulus training on swimming start reaction time. AB - Task-specific auditory training can improve sensorimotor processing times of the auditory reaction time (RT). The majority of competitive swimmers do not conduct habitual start training with the electronic horn used to commence a race. We examined the effect of four week dive training interventions on RT and block time (BT) of 10 male adolescent swimmers (age 14.0 +/- 1.4 years): dive training with auditory components (speaker and electronic horn) (n = 5) and dive training without auditory components (n = 5). Auditory stimulus dive training significantly reduced swimming start RT, compared with dive training without auditory components (p < 0.01), with a group mean RT reduction of 13 +/- 9 ms. Four of the five swimmers that received auditory stimulus training showed medium to large effect size reductions in RT (d = 0.74; 1.32; 1.40; 1.81). No significant changes to swimmers' BTs were evident in either dive training intervention. The adolescent swimmers' results were compared against six male elite swimmers (age 19.8 +/- 1.0 years). The elite swimmers had significantly shorter BTs (p < 0.05) but no significant difference in RTs. Auditory stimulus dive training should be explored further as a mechanism for improving swimming start performance in elite swimmers who have pre-established optimal BTs. PMID- 29327650 TI - Transesophageal Echocardiography Use in Diagnosis and Management of Embolized Intravascular Foreign Bodies. AB - The increasing use of endovascular interventions coupled with the large number of published case series detailing complications attest to the likelihood that anesthesiologists will encounter a case of intravascular foreign body embolization during their careers. Transesophageal echocardiography is essential to the diagnosis and management of traumatic and intravascular foreign bodies embolized to the heart because it can identify not only the foreign body but also hemodynamically significant lesions to radiolucent anatomic structures prior to and during surgical exploration. In this case presentation, we review how intraoperative transesophageal echocardiography facilitated the intraoperative assessment and management of a post-liver transplant patient who underwent open surgical removal of migrated inferior vena cava stent from the right ventricle with concomitant tricuspid valve annuloplasty. PMID- 29327651 TI - A new application for the quantification of apoplastic redox radicals of plant roots using pre-fluorescent probe. AB - New application of fluorescence probe to detect apoplastic redox radicals from plant roots were sought. This probe can detect radicals selectively. Calibration curve for radicals was obtained using nitrogen monoxide as radical standard produced by NOC7. Apoplastic radicals released constitutively were quantified and the release rate was 60 MUmol L-1 h-1. Oxidative burst triggered by chitin was distinguished from constitutive radical release. PMID- 29327652 TI - Acquisition of a mental strategy to control a virtual tail via brain-computer interface. AB - The objective of the present study was to clarify the variation in and properties of mental images and policies used to regulate specific image selection when learning to control a brain-computer interface. Healthy volunteers performed a reaching task with a virtually generated monkey tail-like object on a computer monitor by regulating event-related desynchronization (ERD) on the buttock area of the sensorimotor cortex as recorded by electroencephalogram (EEG). Participants were instructed to find a free image by which the tail was well controlled. Seven participants frequently returned to specific images that were mostly unrelated to a tail, and returned to these images on the last day of training. The ERD levels were greater during use of those selected images versus when selected images were not employed. Our results suggest that individuals adopted a mental strategy where they imagine what would reduce the prediction error between the predicted and actual BCI actions. PMID- 29327654 TI - Delayed Reaction: The Tardy Embrace of Physical Organic Chemistry by the German Chemical Community. AB - The emergence of physical organic chemistry, which focuses on the mechanisms and structures of organic reactions and molecules using the tools of physical chemistry, was a major development in twentieth-century chemistry. It first flourished in the interwar period, in the UK and then in the US. Germany, by contrast, did not embrace the field until almost a half century later. The great success of classical organic chemistry, especially in synthesis, encouraged indifference to the new field among German chemists, as did their inductivist research philosophy, as enunciated by Walter Huckel's ground-breaking textbook (1931). This author also resisted new concepts and representations, especially those of the American theoretician, Linus Pauling. The arrival of the Nazi regime reinforced such resistance. Postwar conditions initiated a reaction against this conservative, nationalistic attitude, especially in the American Occupation Zone. Exposure to American textbooks and visiting lecturers influenced attitudes of younger chemists. The accompanying shift towards a more explanatory, less hierarchical mode of pedagogy was consonant with larger social and political developments. PMID- 29327653 TI - Preparation and in vitro and in vivo evaluation of quercetin-loaded mixed micelles for oral delivery. AB - Quercetin (QT) is a plant polyphenol with various pharmacological properties. However, the low water solubility limits its therapeutic efficacy. In the present study, QT-loaded sodium taurocholate-Pluronic P123 (QT-loaded ST/P123) mixed micelles were developed and characterized, and the effect of the formulation on improving the water solubility of QT was investigated. QT-loaded ST/P123 mixed micelles were prepared by thin film hydration-direct dissolution and optimized by uniform design. The optimal formulation possessed high drug loading (12.6%) and entrapment efficiency (95.9%) in small (16.20 nm) spherically-shaped micelles. A low critical micelle concentration indicated that the micelles were stable, and they showed a sustained release pattern, as determined in vitro in simulated gastric fluid and intestinal fluid. Pharmacokinetic evaluation showed the Cmax and AUC0-24 were 1.8-fold and 1.6-fold higher than the QT suspension. The present results indicate that QT-loaded ST/P123 micelles are potential candidates to improve the solubility and oral bioavailability of QT. PMID- 29327655 TI - Accuracy between optical and inertial motion capture systems for assessing trunk speed during preferred gait and transition periods. AB - Motion capture through inertial sensors is becoming popular, but its accuracy to describe kinematics during changes in walking speed is unknown. The aim of this study was to determine the accuracy of trunk speed extracted using an inertial motion system compared to a gold standard optical motion system, during steady walking and stationary periods. Eleven participants walked on pre-established paths marked on the floor. Between each lap, a 1-second stationary transition period at the initial position was included prior to the next lap. Resultant trunk speed during the walking and transition periods were extracted from an inertial (240 Hz sampling rate) and an optical system (120 Hz sampling rate) to calculate the agreement (Pearson's correlation coefficient) and relative root mean square errors between both systems. The agreement for the resultant trunk speed between the inertial system and the optical system was strong (0.67 < r <= 0.9) for both walking and transition periods. Moreover, relative root mean square error during the transition periods was greater in comparison to the walking periods (>40% across all paths). It was concluded that trunk speed extracted from inertial systems have fair accuracy during walking, but the accuracy was reduced in the transition periods. PMID- 29327656 TI - NAD+/NADH homeostasis affects metabolic adaptation to hypoxia and secondary metabolite production in filamentous fungi. AB - Filamentous fungi are used to produce fermented foods, organic acids, beneficial secondary metabolites and various enzymes. During such processes, these fungi balance cellular NAD+:NADH ratios to adapt to environmental redox stimuli. Cellular NAD(H) status in fungal cells is a trigger of changes in metabolic pathways including those of glycolysis, fermentation, and the production of organic acids, amino acids and secondary metabolites. Under hypoxic conditions, high NADH:NAD+ ratios lead to the inactivation of various dehydrogenases, and the metabolic flow involving NAD+ is down-regulated compared with normoxic conditions. This review provides an overview of the metabolic mechanisms of filamentous fungi under hypoxic conditions that alter the cellular NADH:NAD+ balance. We also discuss the relationship between the intracellular redox balance (NAD/NADH ratio) and the production of beneficial secondary metabolites that arise from repressing the HDAC activity of sirtuin A via Nudix hydrolase A (NdxA) dependent NAD+ degradation. PMID- 29327657 TI - Rare disease prevention and treatment: the need for a level playing field. AB - Pharmacogenetic tests are being used increasingly to prevent rare and potentially life-threatening adverse drug reactions. For many tests, however, cost effectiveness is hard to demonstrate, and with the exception of a few cases, widespread implementation remains a distant prospect. Many orphan drugs for rare diseases are also not cost effective but are nonetheless normally reimbursed. In this article, we argue that the health technology assessment of pharmacogenetic tests aimed to prevent rare but severe adverse drug reactions should be on a level playing field with orphan drugs. This is supported by a number of arguments, concerning the severity, rarity and iatrogenic nature of adverse drug reactions, the distribution of benefits and costs and societal preference towards prevention over treatment. PMID- 29327658 TI - Immunohistochemical analysis of IL-1 Receptor 1 in the discs of patients with temporomandibular joint dysfunction. AB - Objective Temporomandibular joint dysfunction (TMD) may affect a patient's quality of life, and one of the etiologies can be anterior disc displacement with reduction (ADDwR) and anterior disc displacement without reduction (ADDWoR). Interleukin 1 Receptor 1 (IL-1R1) is a membrane receptor that plays an important role on initiating immune and inflammatory response by binding the agonists ligands of IL-1 alpha and IL-1 beta. Therefore, the aim of this study was to evaluate, through immunohistochemical analysis, the association of IL-1R1 with TMD. Methods Thirty-nine human disc samples were collected and composed three different groups: ADDwR (n = 19), ADDwoR (n = 12), and control group (n = 8). The samples were immunostained with IL-1R1 antibody and evaluated on both quantity and intensity of staining. Results There was a statistically significant difference (p < 0.05) between the control and test groups for both quantity and intensity of staining. Conclusion IL1-R1 was associated with ADDwR and ADDwoR in TMD discs of humans. PMID- 29327659 TI - Stabilization of mesophilic Allochromatium vinosum cytochrome c' through specific mutations modeled by a thermophilic homologue. AB - AVCP cytochrome c' from mesophilic Allochromatium vinosum exhibits lower stability than a thermophilic counterpart, Hydrogenophilus thermoluteolus cytochrome c' (PHCP), in which the six specific amino acid residues that are not conserved in AVCP are responsible for its stability. Here we measured the stability of AVCP variants carrying these specific residues instead of the original AVCP ones. Among the six single AVCP variants, all of which formed a dimeric structure similar to that of the wild-type, three were successfully stabilized compared with the wild-type, while one showed lower stability than the wild-type. In addition, the most stabilized and destabilized AVCP variants could bind CO, similar to the wild-type. These results indicated that mesophilic AVCP could be stabilized through specific three mutations modeled by the thermophilic counterpart, PHCP, without changing the CO binding ability. PMID- 29327660 TI - Identification of 2-phenylethanol with a rose-like odor from anal sac secretions of the small Indian mongoose (Herpestes auropunctatus). AB - The small Indian mongoose (Herpestes auropunctatus) is an invasive species in Okinawa and Amami-Oshima, Japan. Major strategies for their eradication have been the use of baited traps, which suffer from decreasing efficiency with declining populations and the bycatch of native animals. To address these concerns, mongoose-specific lures are required. In this study, we aimed to identify species and/or sex-specific compounds from anal sac secretions of small Indian mongooses. Volatile compounds emitted from male and female mongoose anal sac secretions were analyzed by thermal desorption-gas chromatography-mass spectrometry. In addition to several fatty acids, 2-phenylethanol was identified as a minor compound, which is uncommon in mammalian secretions but a dominant odorant in roses. Female samples emitted higher levels of 2-phenylethanol than male samples did. These findings indicate that 2-phenylethanol is a female specific volatile compound of anal sac secretions in small Indian mongooses, and it may be useful as an ingredient of mongoose-specific scent lures. PMID- 29327662 TI - Managing Health Conditions in Older Adulthood: Barriers, Facilitators, and Solutions. PMID- 29327661 TI - Evaluations of the tongue and hyoid bone positions and pharyngeal airway dimensions after maxillary protraction treatment. AB - Objective To assess changes in the tongue and hyoid bone positions and airway dimensions after maxillary protraction using lateral cephalograms. Methods Lateral cephalograms were obtained before (C0) and after (C1) an observation period for untreated children with skeletal Class I malocclusion and before (T0), immediately after (T1), and one year after (T2) maxillary protraction in children with skeletal Class III malocclusion. Cephalometric measurements were compared between the time points in both patient groups. Results Immediately after maxillary protraction, the tongue moved superiorly and the nasopharyngeal and superior oropharyngeal airway dimensions increased. No significant changes in the middle or inferior oropharyngeal airway dimensions or in the hyoid bone position were noted after treatment. Conclusions Maxillary protraction improved tongue posture and modified the nasopharyngeal and superior oropharyngeal airway dimensions in patients with skeletal Class III malocclusion. Consequently, maxillary protraction may restore the intra- and extraoral balance and improve respiratory function. PMID- 29327664 TI - Farewell Editorial. PMID- 29327665 TI - Introductory Editorial. PMID- 29327666 TI - Understanding and Supporting Persons With Memory Loss and Their Families Across the Spectrum of Dementia. PMID- 29327668 TI - Impact of 3 Tesla MRI on interobserver agreement in clinically isolated syndrome: A MAGNIMS multicentre study. AB - BACKGROUND: Compared to 1.5 T, 3 T magnetic resonance imaging (MRI) increases signal-to-noise ratio leading to improved image quality. However, its clinical relevance in clinically isolated syndrome suggestive of multiple sclerosis remains uncertain. OBJECTIVES: The purpose of this study was to investigate how 3 T MRI affects the agreement between raters on lesion detection and diagnosis. METHODS: We selected 30 patients and 10 healthy controls from our ongoing prospective multicentre cohort. All subjects received baseline 1.5 and 3 T brain and spinal cord MRI. Patients also received follow-up brain MRI at 3-6 months. Four experienced neuroradiologists and four less-experienced raters scored the number of lesions per anatomical region and determined dissemination in space and time (McDonald 2010). RESULTS: In controls, the mean number of lesions per rater was 0.16 at 1.5 T and 0.38 at 3 T ( p = 0.005). For patients, this was 4.18 and 4.40, respectively ( p = 0.657). Inter-rater agreement on involvement per anatomical region and dissemination in space and time was moderate to good for both field strengths. 3 T slightly improved agreement between experienced raters, but slightly decreased agreement between less-experienced raters. CONCLUSION: Overall, the interobserver agreement was moderate to good. 3 T appears to improve the reading for experienced readers, underlining the benefit of additional training. PMID- 29327669 TI - Advanced 3D Models Cultured to Investigate Mesenchymal Stromal Cells of the Human Dental Follicle. AB - The human dental follicle (hDF) contains the developing tooth and is involved in regulating tooth maturation and eruption. To investigate the mesenchymal stromal cells of the dental follicle, 2 three-dimensional (3D) culture models were used, based on a dynamic bioreactor: the Rotary Cell Culture System (RCCSTM) and the 3D culture of precursor cells isolated from follicular tissue (human dental follicle cells [hDFCs]). The hDFCs were obtained from impacted third molars of 20 patients. Two 3D culture models were tested. In the first model, intact hDF explants were cultured in 3D conditions, preserving the original tissue architecture; they were studied using histomorphological and molecular analyses. The second model involved the 3D culture of hDFCs, which were characterized to evaluate their multipotency in terms of differentiation capability. Of the biomarkers known to characterize hDFCs, hDF precursors were selected for our study. The immunophenotype and in situ immunocytochemistry were evaluated for markers CD44, CD90, CD146, CD105, CD31, CD34, and CD45 Ag. The results show that the conditions provided by the RCCS preserve the original organizational architecture of the cells. The 3D conditions of the model enhanced differentiation in response to adipogenic, osteogenic, and chondrogenic inductive growth media. The immunophenotype and the immunocytochemistry showed generally high expression of CD90, CD44, and CD105, while CD146 expression was more restricted to ~30% of cells. No expression was observed for CD31, CD34, and CD45 Ags. Two 3D tissue- and cell-based ex vivo models of the hDF supported the long term maintenance of hDF-specific cell phenotypes and their ability to recapitulate typical cellular differentiation states. As such, these ex vivo models could be used to study the physiopathology of human odontogenesis. In addition, in a therapeutic context, they could be used to examine the role of specific chemical signals (e.g., new therapeutic agents) in the processes of dental tissue repair and regeneration. PMID- 29327670 TI - Identification of undesirable white-colony-forming yeasts appeared on the surface of Japanese kimchi. AB - To identify yeasts involved in white-colony formation on Japanese commercial kimchi products, three types of kimchi were prepared and fermented at four different temperatures. At 4 degrees C, yeast colonies did not appear until 35 days, while more rapid white-colony formation occurred at higher temperatures (10, 15, and 25 degrees C). Combination of PCR-DGGE and direct isolation of yeasts from white colonies revealed that Kazachstania exigua and K. pseudohumilis were responsible for the white-colony formation. Inoculation of the isolated Kazachstania strains into fresh kimchi successfully reproduced white-colony formation at 15 degrees C but not at 4 degrees C. Growth experiments in liquid medium revealed that Kazachstania spp. grew fast at 15 degrees C even in the presence of acidulants, which are commonly added to Japanese kimchi products for prevention of yeast growth. These results suggest that white-colony formation on Japanese kimchi is caused by the genus Kazachstania, and that one of important factors determining white-colony formation is its fermentation temperature. PMID- 29327672 TI - Linear epitopes in African swine fever virus p72 recognized by monoclonal antibodies prepared against baculovirus-expressed antigen. AB - Protein p72 is the major capsid protein of African swine fever virus (ASFV) and is an important target for test and vaccine development. Monoclonal antibodies (mAbs) were prepared against a recombinant antigenic fragment, from amino acid (aa) 20-303, expressed in baculovirus. A total of 29 mAbs were recovered and tested by immunofluorescent antibody (IFA) staining on ASFV Lisbon-infected Vero cells. Six antibodies were IFA-positive and selected for further characterization. Epitope mapping was performed against overlapping polypeptides expressed in E. coli and oligopeptides. Based on oligopeptide recognition, the mAbs were divided into 4 groups: mAb 85 (aa 165-171); mAbs 65-3 and 6H9-1 (aa 265 280); mAbs 8F7-3 and 23 (aa 280-294); and mAb 4A4 (aa 290-303). All mAbs were located within a highly conserved region in p72. This panel of antibodies provides the opportunity to develop new assays for the detection of ASFV antibody and antigen. PMID- 29327673 TI - Evaluation of the electromyographic fatigue of the masseter and temporalis muscles in individuals with osteoporosis. AB - Objectives The objective of this study was to evaluate the electromyographic fatigue of the masseter and temporalis muscles in individuals with and without osteoporosis. Methods Median frequency of the initial, mid, and final periods of the electromyographic signal in the 33 subjects with osteoporosis (OG) and 33 subjects without osteoporosis [control (CG)] was analyzed. Results OG showed a decrease in median frequency along the electromyographic signal, with a significant difference for the right masseter: initial vs. mid periods, initial vs. final periods; left masseter: initial vs. final periods; temporal (right and left): initial vs. mid periods, initial vs. final periods, and mid vs. final periods. Percentage comparison of median frequency between the initial and mid periods and between initial and final periods in the OG showed a significant difference in the masticatory muscles. Discussion The findings suggest that osteoporosis is associated with changes in the function of masticatory muscles, especially when measured by electromyographic fatigue. PMID- 29327674 TI - Insoluble Microenvironment Facilitating the Generation and Maintenance of Pluripotency. AB - Induced pluripotent stem cells (iPSCs) hold enormous potential as a tool to generate cells for tissue engineering and regenerative medicine. Since the initial report of iPSCs in 2006, many different methods have been developed to enhance the safety and efficiency of this technology. Recent studies indicate that the extracellular signals can promote the production of iPSCs, and even replace the Yamanaka factors. Noticeably, abundant evidences suggest that the insoluble microenvironment, including the culture substrate and neighboring cells, directly regulates the expression of core pluripotency genes and the epigenetic modification of the chromatins, hence, impacts the reprogramming dynamics. These studies provide new strategies for developing safer and more efficient method for iPSC generation. In this review, we examine the publications addressing the insoluble extracellular microenvironment that boosts iPSC generation and self-renewal. We also discuss cell adhesion-mediated molecular mechanisms, through which the insoluble extracellular cues interplay with reprogramming. PMID- 29327675 TI - The relationship between oral tori and bite force. AB - Objective The relationship between bite force and torus palatinus or mandibularis remains to be explained. The major aim of this study was to determine the correlation between bite force and oral tori. Methods The bite force of 345 patients was measured with a bite force recorder; impressions of the shape and size of the oral tori were taken on plaster models prior to orthodontic treatments. Subsequently, the relationship between oral tori and bite force was analyzed. Results The size, shape, and incidence of torus palatinus was not significantly correlated with bite force. However, the size of torus mandibularis increased significantly in proportion to the bite force (p = 0.020). The occurrence of different types of oral tori was not correlated with the bite force. Discussion The size of torus mandibularis provides information about bite force and can thus be used to clinically assess occlusal stress. PMID- 29327676 TI - Physiological responses to taste signals of functional food components. AB - The functions of food have three categories: nutrition, palatability, and bioregulation. As the onset of lifestyle-related diseases has increased, many people have shown interest in functional foods that are beneficial to bioregulation. We believe that functional foods should be highly palatable for increased acceptance from consumers. In order to design functional foods with a high palatability, we have investigated about the palatability, especially in relation to the taste of food. In this review, we discuss (1) the identification of taste receptors that respond to functional food components; (2) an analysis of the peripheral taste transduction system; and (3) the investigation of the relationship between physiological functions and taste signals. PMID- 29327678 TI - Polymorphism observed in mitochondrial genes of red flour beetle, Tribolium castaneum (Coleoptera: Tenebrionidae) of different origin in laboratory cultures. AB - Tribolium castaneum, a pest of stored grain, has a uniform morphology, preventing the visual identification of strains from different areas. Polymorphisms in the nucleotide sequences of the mitochondrial genes of this species were examined, and combined into seven haplotypes among the test insect specimens originating from Japan, Thailand, and Canada. These results suggested the potential for geographical differentiation. PMID- 29327671 TI - Tissue-Engineered Heart Valves: A Call for Mechanistic Studies. AB - Heart valve disease carries a substantial risk of morbidity and mortality. Outcomes are significantly improved by valve replacement, but currently available mechanical and biological replacement valves are associated with complications of their own. Mechanical valves have a high rate of thromboembolism and require lifelong anticoagulation. Biological prosthetic valves have a much shorter lifespan, and they are prone to tearing and degradation. Both types of valves lack the capacity for growth, making them particularly problematic in pediatric patients. Tissue engineering has the potential to overcome these challenges by creating a neovalve composed of native tissue that is capable of growth and remodeling. The first tissue-engineered heart valve (TEHV) was created more than 20 years ago in an ovine model, and the technology has been advanced to clinical trials in the intervening decades. Some TEHVs have had clinical success, whereas others have failed, with structural degeneration resulting in patient deaths. The etiologies of these complications are poorly understood because much of the research in this field has been performed in large animals and humans, and, therefore, there are few studies of the mechanisms of neotissue formation. This review examines the need for a TEHV to treat pediatric patients with valve disease, the history of TEHVs, and a future that would benefit from extension of the reverse translational trend in this field to include small animal studies. PMID- 29327677 TI - Autologous Smooth Muscle Progenitor Cells Enhance Regeneration of Tissue Engineered Bladder. AB - Tissue engineering techniques provide a great potential to de novo construct a histological bladder. Smooth muscle regeneration is extremely important for the functional recovery of engineered neobladder. However, many challenges remain for the use of bladder smooth muscle cells (SMCs) as the cell sources. Recent evidences showed that smooth muscle progenitor cells (SPCs) in the peripheral blood have the capacity of differentiating into SMCs, while their use for bladder regeneration has not yet been reported. The aim of our study was to investigate the effect and mechanism of autologous SPCs on bladder regeneration in a rabbit model. In this study, autologous SPCs were isolated and cultured from the peripheral blood, labeled with CM-DiI, and then seeded into a porcine bladder acellular matrix (BAM) to construct a SPC-BAM complex, which was finally implanted to substitute the partial bladder with an equivalent size. In the results, SPCs demonstrated the phenotype of stem/progenitor cells, expressed SMs markers (alpha-smooth muscle actin [alpha-SMA], desmin, calponin, SM22alpha, and smooth muscle myosin heavy chain [SMMHC]), and displayed carbachol-induced contraction. Compared with cell-free BAM, the SPC-BAM was able to improve histological regeneration (smooth muscle regeneration, vascularization, and nerve formation) and functional recovery (urodynamic function and smooth muscle contraction) of the engineered neobladder. Cell tracing indicated that seeded SPCs could survive and directly integrated into the regenerated neobladder. In addition, SPCs could also promote proliferation and migration of rabbit bladder SMCs through the paracrine platelet-derived growth factor-BB (PDGF-BB). In conclusion, our study first demonstrated that SPCs from the peripheral blood could enhance histological regeneration and functional recovery of the tissue engineered neobladder through both the direct integration and indirect paracrine effect, supporting the use of SPCs as the cell sources for tissue engineering of the bladder. PMID- 29327679 TI - Natural and Artificial Strategies To Control the Conjugative Transmission of Plasmids. AB - Conjugative plasmids are the main carriers of transmissible antibiotic resistance (AbR) genes. For that reason, strategies to control plasmid transmission have been proposed as potential solutions to prevent AbR dissemination. Natural mechanisms that bacteria employ as defense barriers against invading genomes, such as restriction-modification or CRISPR-Cas systems, could be exploited to control conjugation. Besides, conjugative plasmids themselves display mechanisms to minimize their associated burden or to compete with related or unrelated plasmids. Thus, FinOP systems, composed of FinO repressor protein and FinP antisense RNA, aid plasmids to regulate their own transfer; exclusion systems avoid conjugative transfer of related plasmids to the same recipient bacteria; and fertility inhibition systems block transmission of unrelated plasmids from the same donor cell. Artificial strategies have also been designed to control bacterial conjugation. For instance, intrabodies against R388 relaxase expressed in recipient cells inhibit plasmid R388 conjugative transfer; pIII protein of bacteriophage M13 inhibits plasmid F transmission by obstructing conjugative pili; and unsaturated fatty acids prevent transfer of clinically relevant plasmids in different hosts, promoting plasmid extinction in bacterial populations. Overall, a number of exogenous and endogenous factors have an effect on the sophisticated process of bacterial conjugation. This review puts them together in an effort to offer a wide picture and inform research to control plasmid transmission, focusing on Gram-negative bacteria. PMID- 29327680 TI - Mechanisms of Bacterial Resistance to Antimicrobial Agents. AB - During the past decades resistance to virtually all antimicrobial agents has been observed in bacteria of animal origin. This chapter describes in detail the mechanisms so far encountered for the various classes of antimicrobial agents. The main mechanisms include enzymatic inactivation by either disintegration or chemical modification of antimicrobial agents, reduced intracellular accumulation by either decreased influx or increased efflux of antimicrobial agents, and modifications at the cellular target sites (i.e., mutational changes, chemical modification, protection, or even replacement of the target sites). Often several mechanisms interact to enhance bacterial resistance to antimicrobial agents. This is a completely revised version of the corresponding chapter in the book Antimicrobial Resistance in Bacteria of Animal Origin published in 2006. New sections have been added for oxazolidinones, polypeptides, mupirocin, ansamycins, fosfomycin, fusidic acid, and streptomycins, and the chapters for the remaining classes of antimicrobial agents have been completely updated to cover the advances in knowledge gained since 2006. PMID- 29327681 TI - Updated National Comprehensive Cancer Network guidelines for treatment of head and neck cancers 2010-2017. AB - INTRODUCTION: The diagnostic and therapeutic recommendations have been changing over the years to improve treatment outcomes and quality of life of Head and Neck Cancer (HNC) patients. AIM: The aim of this study was to present currently recommended Head and Neck Cancer treatment guidelines based on the literature review with particular emphasis on novel approaches the NCCN algorithms. MATERIAL AND METHODS: The review of literature covering articles published in the last five years and pointing out essential changes in HNC treatment regarding evidence based medicine. The study focused on the analysis of novel approaches for the particular primaries, the implementation of biological therapies and personalized cancer therapies. RESULTS: Updates in the oncological NCCN guidelines for all ENT primaries except major salivary glands and subglottis are based on knowledge derived from the basic sciences, clinical trials and the best evidence available currently. The latest recommendations emphasize value of biological therapies use. PMID- 29327682 TI - Analysis of implementiation of 4th Head and Neck Cancer Awareness Week in Department of Otolaryngology in Miedzyleski Hospital in Warsaw. AB - INTRODUCTION: The aim of the study was to analyze the profile of patients applying for free preventive examinations within The Forth European Head an Neck Cancer (HNC) Awareness Week in the Department of Otorhynolaryngology in Miedzyleski Hospital in Warsaw (ORL MSS). MATERIAL AND METHODS: A media campaign was designed to inform HNC risk patients about the opportunity to receive free preventive examinations in ORL MSS. 225 patients were enrolled to the study. Patient age ranged from 26 to 92 (average 63 years). Women accounted for 66% (149) and males 34% (76). Each patient completed a questionnaire assessing risk factors for HNC, including reported symptoms and lifestyle. ENT examination was performed. Some patients were referred for further diagnostics and treatment. RESULTS: The following HNC risk factors connected with lifestyle were found: nicotine in 22%, alcohol in more than once a week in 12%, oral sex in 17%, multiple sexual partners in 10%, rare dental tests in 24%, prosthetic restorations in 45%. The symptom that most often prompted patients to participate in the HNC prevention week was chronic hoarseness (64%) of people, dry mouth (39%), swallowing (37%), nasal obstruction (6%), neck tumour (5%). One per every five patients was referred to further diagnostics: imaging screening 7% (15 persons), fiber optic examination 11% (25 persons), the excision of the lesion 8% (18 persons). 17 patients were referred for further oncological treatment, of which 13 had benign tumors and 4 had malignant tumors. CONCLUSIONS: The HNC Awareness Program increases public consciousness and should systematically includes people with risk factors. The introduction of the Program in the ORL Department has made possible to detect and treat cancer in early stages in 7.5% of those who applied for the program. The use of adequate diagnostics and treatment requires, however, adequate financial resources and systemic solutions. PMID- 29327683 TI - Clinical manifestation of malignant lymphomas of the head and neck region. AB - INTRODUCTION: Malignant lymphoma (ML) is a neoplasm caused by clonal expansion of undifferentiated B, T and NK-lymphoid cells. WHO classification divides lymphomas into two main types, i.e. Hodgkin lymphoma (HL), and non-Hodgkin lymphoma (NHL), with numerous subtypes. The majority of MLs are localized in lymph nodes, but extranodal locations are also possible. MLs represent approximately 3-5% of all malignant neoplasms in Poland, but their incidence has been increasing in recent years, especially in young patients. The objective of the study was to evaluate clinical manifestations and diagnostic process in patients with malignant lymphomas of the head and neck region as diagnosed in the Department of Otorhinolaryngology of the Medical University of Lodz in years 2013-2017. MATERIAL AND METHOD: 30 patients diagnosed with malignant lymphomas of the head and neck region at the Departbadament of Otorhinolaryngology of the Medical University of Lodz in 2013-2017. RESULTS: The study group consisted of 8 cases of nodal lymphomas and 22 cases of extranodal lymphomas. In 29 cases B-cell lymphomas were diagnosed. The most common symptoms included lymphadenopathy or neck tumor. Other symptoms were associated with the location of tumors in particular body organs. The diagnosis was based on histopathological examination of biopsy (needle or surgical) samples. CONCLUSION: Malignant lymphomas should be taken into account during differential diagnosis of the tumor or lymphadenopathy of the neck. The diagnosis is difficult because of the nonspecificity of symptoms and the need for interdisciplinary cooperation of many specialists. PMID- 29327684 TI - Diagnosis and treatment of nasal and paranasal inverted papillomas - epidemiology and own experience. AB - INTRODUCTION: The aim of this study was to analyse the occurrence of inverted papillomas of the nose and paranasal sinuses in patients that underwent endoscopic sinus surgery in our department. MATERIAL AND METHODS: Between 2006 and 2016, 3,574 patients underwent surgery due to paranasal sinus diseases. Patients were qualified for surgery based on medical history, computed tomography, and laboratory tests. Data were gathered from medical files, and they included age, sex, and histopathological diagnosis. RESULTS: Among 3,574 patients that underwent surgery due to chronic inflammatory changes, on histopathology, inverted papillomas were diagnosed in 80 patients, including 31 women (38.75%) and 49 men (61.25%). Most patients were aged 60-70 years (women, 12.5%; men, 15%) or 50-60 years (women, 5%; men, 21.25%). Between 2006 and 2016, the number of surgeries ranged from 264 (7.38%) in 2013 to 355 (9.93%) in 2016, and the number of inverted papillomas ranged from 4 in 2007 and 2015 (1.23%) to 12 in 2014 (3.87%). Over the last 4 years of the study period, the incidence of inverted papillomas increased. CONCLUSIONS: Among 3,574 patients operated on due to chronic inflammatory changes, on histopathology, inverted papillomas were diagnosed in 80 cases (2.23%); thus, all patients qualified for endoscopic surgery due to inflammatory or hypertrophic changes should undergo rhino fiberoscopy. Recurrence of inverted papillomas was observed in 17.50%, typically in patients with nasal polyps that co-occurred with inverted papillomas. We regard rhino-fiberoscopy as the most valuable method for detecting tumour recurrence in patients after surgery for inverted papillomas. PMID- 29327685 TI - The role of pepsin in the laryngopharyngeal reflux. AB - Laryngopharyngeal reflux (LPR) is a common defect among laryngological and phoniatric patients. Although LPR is categorized as a superficial gastroesophageal reflux disease (GERD), differential diagnosis should treat these two diseases separately. LPR symptoms can be assessed in the interview using as a tool the reflux symptom index (RSI). In addition, changes in the larynx that occur during LPR might be seen during laryngoscopy and classified according to the reflux finding score (RFS). One of the main mucosal irritants in LPR is pepsin which digests proteins and impairs the functions of the upper respiratory tract cells by affecting carbonate anhydrase (CAIII) and the Sep 70 protein. Pepsin initiates inflammatory changes within the larynx, nasopharynx and nasal cavity. The use of pepsin detection in upper and lower throat secretions is a new direction in LPR diagnostics. PMID- 29327686 TI - Severity of dysphonia in patients during first days after iatrogenic injury. AB - INTRODUCTION: The most common cause of vocal fold paralysis (VFP) is iatrogenic injury. Patients with symptoms of VFP present to the specialist after a couple of weeks or even months since the onset of symptoms. In the literature, the data regarding speech impairment during the first days after a iatrogenic injury is lacking. AIM: to evaluate the quality of voice during first days of vocal fold paralysis following a iatrogenic injury. MATERIALS AND METHODS: Twenty-five patients with iatrogenic vocal fold paralysis who presented for phoniatric consultation at the Department of Otolaryngology of the Medical University of Warsaw between May 2015 and December 2016 were enrolled in the study. The patients were examined 1-2 days since the onset of speech deterioration. In all patients, laryngeal videolaryngostroboscopy was performed, based on which the following were assessed: vocal fold mobility, mucosal wave, phonation closure, simultaneity and amplitude of vocal fold vibration. Acoustic analysis was performed, and the following acoustic parameters were evaluated: DSI, F0, Shimmer, Jitter, NHR. Also, the maximal phonation time of [a] sound (MPT a) was assessed and the voice perception analysis with the GRBAS scale was performed. The patients self-evaluated their voice using a 10-point VAS scale. RESULTS: Based on the videolaryngostroboscopy, phonatory insufficiency and asymmetrical vocal fold vibration were observed. On perception assessment with GRBAS scale, we noticed slight to mild degree hoarseness, breathiness of sound and weakened voice. In majority of patients, the maximal phonation time of [a] sound was significantly reduced. All patients showed abnormal acoustic parameters. None of them rated their voice as perfectly normal on VAS scale. PMID- 29327687 TI - Effect of speechreading in presbycusis: Do we have a third ear? AB - INTRODUCTION: Evidence regarding the effect of speechreading is lacking in age related hearing loss (presbycusis). Thus, in individuals with presbycusis, this study determined whether speechreading would improve word intelligibility. Moreover, the study investigated the effect of speechreading on word intelligibility depending on hearing impairment severity. MATERIALS AND METHODS: This analytical, cross-sectional study involved two groups of individuals aged > 65 years that were enrolled by convenience sampling: 29 individuals with bilateral sensorineural hearing loss compatible with presbycusis (n=58 ears; mean age, 74.1+/-9.4 years) and 10 controls with at-most-mild hearing loss (n=58 ears; mean age, 73.8+/-8.5 years). All participants underwent a comprehensive medical and audiological evaluation, which included speech audiometry with and without observation of the audiologist's face, i.e. speechreading. Within each group, the effect of speechreading was determined as a change in the speech reception threshold. For all statistical analyses, p < 0.05 was considered significant. RESULTS: Both in individuals with presbycusis and controls, speechreading significantly improved speech discrimination (p<.001<.05); however, compared to controls, this effect of speechreading on speech discrimination was more pronounced in individuals with presbycusis (p<.001). DISCUSSION: Individuals with presbycusis or hearing impairment displayed improved spoken-word intelligibility when spoken-word recognition was coupled with speechreading. Thus, speechreading may serve as a "third ear". PMID- 29327688 TI - Empirical optimization of DFT + U and HSE for the band structure of ZnO. AB - ZnO is a well-known wide band gap semiconductor with promising potential for applications in optoelectronics, transparent electronics, and spintronics. Computational simulations based on the density functional theory (DFT) play an important role in the research of ZnO, but the standard functionals, like Perdew Burke-Erzenhof, result in largely underestimated values of the band gap and the binding energies of the Zn3d electrons. Methods like DFT + U and hybrid functionals are meant to remedy the weaknesses of plain DFT. However, both methods are not parameter-free. Direct comparison with experimental data is the best way to optimize the computational parameters. X-ray photoemission spectroscopy (XPS) is commonly considered as a benchmark for the computed electronic densities of states. In this work, both DFT + U and HSE methods were parametrized to fit almost exactly the binding energies of electrons in ZnO obtained by XPS. The optimized parameterizations of DFT + U and HSE lead to significantly worse results in reproducing the ion-clamped static dielectric tensor, compared to standard high-level calculations, including GW, which in turn yield a perfect match for the dielectric tensor. The failure of our XPS-based optimization reveals the fact that XPS does not report the ground state electronic structure for ZnO and should not be used for benchmarking ground state electronic structure calculations. PMID- 29327689 TI - Global spectral graph wavelet signature for surface analysis of carpal bones. AB - Quantitative shape comparison is a fundamental problem in computer vision, geometry processing and medical imaging. In this paper, we present a spectral graph wavelet approach for shape analysis of carpal bones of the human wrist. We employ spectral graph wavelets to represent the cortical surface of a carpal bone via the spectral geometric analysis of the Laplace-Beltrami operator in the discrete domain. We propose global spectral graph wavelet (GSGW) descriptor that is isometric invariant, efficient to compute, and combines the advantages of both low-pass and band-pass filters. We perform experiments on shapes of the carpal bones of ten women and ten men from a publicly-available database of wrist bones. Using one-way multivariate analysis of variance (MANOVA) and permutation testing, we show through extensive experiments that the proposed GSGW framework gives a much better performance compared to the global point signature embedding approach for comparing shapes of the carpal bones across populations. PMID- 29327690 TI - Laser-direct writing by two-photon polymerization of 3D honeycomb-like structures for bone regeneration. AB - A major limitation of existing 3D implantable structures for bone tissue engineering is that most of the cells rapidly attach on the outer edges of the structure, restricting the cells penetration into the inner parts and causing the formation of a necrotic core. Furthermore, these structures generally possess a random spatial arrangement and do not preserve the isotropy on the whole volume. Here, we report on the fabrication and testing of an innovative 3D hierarchical, honeycomb-like structure (HS), with reproducible and isotropic arhitecture, that allows in 'volume' migration of osteoblasts. In particular, we demonstrate the possibility to control the 3D spatial cells growth inside these complex architectures by adjusting the free spaces inside the structures. The structures were made of vertical microtubes arranged in a mulitlayered configuration, fabricated via laser direct writing by two photons polymerization of the IP-L780 photopolymer. In vitro tests performed in MG-63 osteoblast-like cells demonstrated that the cells migration inside the 3D structures is conducted by the separation space between the microtubes layers. Specifically, for layers separation between 2 and 10 MUm, the cells gradually penetrated between the microtubes. Furthermore, these structures induced the strongest cells osteogenic differentiation and mineralization, with ALP activity 1.5 times stronger, amount of calcified minerals 1.3 times higher and osteocalcin secretion increased by 2.3 times compared to the other structures. On the opposite, for layers separation less than 2 MUm and above 10 MUm, the cells were not able to make interconnections and exhibited poor mineralization ability. PMID- 29327691 TI - Fermi-level tuning of the Dirac surface state in (Bi1 xSbx)2Se3 thin films. AB - We report on the electronic states and the transport properties of three dimensional topological insulator (Bi1 xSbx)2Se3 ternary alloy thin films grown on an isostructural Bi2Se3 buffer layer on InP substrates. By angle-resolved photoemission spectroscopy, we clearly detected Dirac surface states with a large bulk band gap of 0.2 - 0.3 eV in the (Bi1 xSbx)2Se3 film with x = 0.70. In addition, we observed by Hall effect measurements that the dominant charge carrier converts from electron (n-type) to hole (p-type) at around x = 0.7, indicating that the Fermi level can be controlled across the Dirac point. Indeed, the carrier transport was shown to be governed by Dirac surface state in 0.63 <= x <= 0.75.These features suggest that Fermi-level tunable (Bi1-xSbx)2Se3 based heterostructures provide a platform for extracting exotic topological phenomena. PMID- 29327693 TI - Direct determination of k Q factors for cylindrical and plane-parallel ionization chambers in high-energy electron beams from 6 MeV to 20 MeV. AB - For the ionometric determination of the absorbed dose to water, D w, in high energy electron beams from a clinical accelerator, beam quality dependent correction factors, k Q, are required. By using a water calorimeter, these factors can be determined experimentally and potentially with lower standard uncertainties than those of the calculated k Q factors, which are tabulated in various dosimetry protocols. However, one of the challenges of water calorimetry in electron beams is the small measurement depths in water, together with the steep dose gradients present especially at lower energies. In this investigation, water calorimetry was implemented in electron beams to determine k Q factors for different types of cylindrical and plane-parallel ionization chambers (NE2561, NE2571, FC65-G, TM34001) in 10 cm * 10 cm electron beams from 6 MeV to 20 MeV (corresponding beam quality index R 50 ranging from 1.9 cm to 7.5 cm). The measurements were carried out using the linear accelerator facility of the Physikalisch-Technische Bundesanstalt. Relative standard uncertainties for the k Q factors between 0.50% for the 20 MeV beam and 0.75% for the 6 MeV beam were achieved. For electron energies above 8 MeV, general agreement was found between the relative electron energy dependencies of the k Q factors measured and those derived from the AAPM TG-51 protocol and recent Monte Carlo-based studies, as well as those from other experimental investigations. However, towards lower energies, discrepancies of up to 2.0% occurred for the k Q factors of the TM34001 and the NE2571 chamber. PMID- 29327692 TI - A PET reconstruction formulation that enforces non-negativity in projection space for bias reduction in Y-90 imaging. AB - Most existing PET image reconstruction methods impose a nonnegativity constraint in the image domain that is natural physically, but can lead to biased reconstructions. This bias is particularly problematic for Y-90 PET because of the low probability positron production and high random coincidence fraction. This paper investigates a new PET reconstruction formulation that enforces nonnegativity of the projections instead of the voxel values. This formulation allows some negative voxel values, thereby potentially reducing bias. Unlike the previously reported NEG-ML approach that modifies the Poisson log-likelihood to allow negative values, the new formulation retains the classical Poisson statistical model. To relax the non-negativity constraint embedded in the standard methods for PET reconstruction, we used an alternating direction method of multipliers (ADMM). Because choice of ADMM parameters can greatly influence convergence rate, we applied an automatic parameter selection method to improve the convergence speed. We investigated the methods using lung to liver slices of XCAT phantom. We simulated low true coincidence count-rates with high random fractions corresponding to the typical values from patient imaging in Y-90 microsphere radioembolization. We compared our new methods with standard reconstruction algorithms and NEG-ML and a regularized version thereof. Both our new method and NEG-ML allow more accurate quantification in all volumes of interest while yielding lower noise than the standard method. The performance of NEG-ML can degrade when its user-defined parameter is tuned poorly, while the proposed algorithm is robust to any count level without requiring parameter tuning. PMID- 29327694 TI - Electronic structure of Fe1.08Te bulk crystals and epitaxial FeTe thin films on Bi2Te3. AB - The electronic structure of thin films of FeTe grown on Bi2Te3 is investigated using angle-resolved photoemission spectroscopy, scanning tunneling microscopy and first principles calculations. As a comparison, data from cleaved bulk Fe1.08Te taken under the same experimental conditions is also presented. Due to the substrate and thin film symmetry, FeTe thin films grow on Bi2Te3 in three domains, rotated by 0 degrees , 120 degrees , and 240 degrees . This results in a superposition of photoemission intensity from the domains, complicating the analysis. However, by combining bulk and thin film data, it is possible to partly disentangle the contributions from three domains. We find a close similarity between thin film and bulk electronic structure and an overall good agreement with first principles calculations, assuming a p-doping shift of 65 meV for the bulk and a renormalization factor of around two. By tracking the change of substrate electronic structure upon film growth, we find indications of an electron transfer from the FeTe film to the substrate. No significant change of the film's electronic structure or doping is observed when alkali atoms are dosed onto the surface. This is ascribed to the film's high density of states at the Fermi energy. This behavior is also supported by the ab initio calculations. PMID- 29327695 TI - Multiple inflamed cutaneous nodules in an elderly female. PMID- 29327697 TI - An unusual early onset of lentigo maligna in the fourth decade of life. PMID- 29327696 TI - Sarcomatoid lung carcinoma presenting as alopecia neoplastica. PMID- 29327698 TI - Eruptive pseudoangiomatosis - cherry angiomas with perilesional halo. AB - Eruptive pseudoangiomatosis is a rare viral exanthem characterized by acute onset of hemangiomata-like lesions, however, histological findings are distinct from that of true angiomas. This entity has been reported from Europe, North America, Japan, and Korea till date. Here, we report 12 cases of eruptive pseudoangiomatosis from a tertiary care hospital in Punjab. PMID- 29327699 TI - Nail changes in autoimmune blistering disorders: A case-control study. AB - Background: Pemphigus and pemphigoid disorders produce blistering cutaneous lesions. Earlier case reports state that nail involvement is uncommon in these autoimmune blistering disorders. Aims and Objectives: To study nail changes in autoimmune blistering disorders. Methods: A case-control study was conducted where 40 cases and 40 controls were evaluated for nail changes. Results: Nail changes were seen in 72.5% of cases and 17.5% of controls. The most common nail findings were paronychia and onychorrhexis. Limitations: Small sample size; short study duration; nail biopsy could not be done. Conclusion: Our findings indicate that the inflammatory nature of the blistering cutaneous disease is often reflected conspicuously in the nails. PMID- 29327700 TI - Disseminated cutaneous fusariosis in human immunodeficiency virus-infected patient and dramatic response with oral itraconazole. AB - Fusarium species are known to cause disseminated cutaneous lesions in immunocompromised patients. Some cases of fusariosis are reported in patients infected with the human immunodeficiency virus. There are two reports in such patients with systemic comorbidities like lymphoma, neutropenia and infective port-a-catheter. Another reported patient had systemic fusariosis, without skin involvement. Diagnosis and treatment of cutaneous fusariosis is difficult and resistance to antifungals is a problem. Our patient was at an advanced human immunodeficiency virus infection stage with disseminated cutaneous fusariosis, without any systemic involvement, who responded completely to oral itraconazole. PMID- 29327701 TI - Distribution of killer immunoglobulin-like receptor genes in HIV infected long term non-progressors from Mumbai, India. AB - Background: Few reports suggest the association of killer immunoglobulin-like receptors of natural killer cells with human immunodeficiency virus infection. India with world's third largest population of human immunodeficiency virus / acquired immunodeficiency syndrome, offers scope to study such association. Objective: Current study (2010-2015) was designed to evaluate if killer immunoglobulin-like receptors gene polymorphisms are associated with HIV infection outcomes specifically, with long term non progressors. Methods: Killer immunoglobulin-like receptors genotyping was done using polymerase chain reaction - sequence-specific primer method. Viral load was measured by Cobas Taqman HIV-1 test. Estimation of CD4 counts was done using BD FACS CD4 count reagent. Results: The activating gene frequencies identified were 3DS1 (53.8%), 2DS3 (69.2%), 2DS4 (76.9%), 2DS5 (69.2%), 2DS1 (76.9%) and 2DS2 (92.3%). The inhibitory gene frequencies were 2DL2 (92.3%), 2DL5 (76.9%), 2DL3 (69.5%), 3DL1 (84.6%), 3DL2 (92.3%) and 2DL1 (100%). The results highlight high frequency of 3DS1/3DL1 heterozygote and killer immunoglobulin-like receptor 2DS1, among these long term non progressors indicating their possible association with slow progression. Genotype analysis shows total 13 genotypes, of which 8 genotypes were identified for the first time from India. Two genotypes were unique/novel, which were unreported. All genotypes observed in this study were considered to be Bx genotype (100 %). Limitations: A small sample size (n=13, due to a rare cohort) and the absence of control group were the limitations of this study. Conclusions: The present study highlights the distribution of killer immunoglobulin-like receptor genes in a very rare group of human immunodeficiency virus -1 infected individuals - long term non progressors. All the long term non progressors tested show the presence of Bx haplotype and each long term non progressors has a different killer immunoglobulin-like receptor genotype. PMID- 29327702 TI - Laser-assisted surgery and bioscaffold for the treatment of rhinophyma. PMID- 29327703 TI - Flexural scaly papules and plaques. PMID- 29327705 TI - Diabetes: Towards a coxsackievirus B-based vaccine to combat T1DM. PMID- 29327707 TI - Appendiceal goblet cell carcinoids and adenocarcinomas ex-goblet cell carcinoid are genetically distinct from primary colorectal-type adenocarcinoma of the appendix. AB - The appendix gives rise to goblet cell carcinoids, which represent special carcinomas with distinct biological and histological features. Their genetic background and molecular relationship to colorectal adenocarcinoma is largely unknown. We therefore performed a next-generation sequencing analysis of 25 appendiceal carcinomas including 11 goblet cell carcinoids, 7 adenocarcinomas ex goblet cell carcinoid, and 7 primary colorectal-type adenocarcinomas, using a modified Colorectal Cancer specific Panel comprising 32 genes linked to colorectal and neuroendocrine tumorigenesis. The mutational profiles of these neoplasms were compared with those of conventional adenocarcinomas, mixed adenoneuroendocrine carcinomas, and neuroendocrine carcinomas of the colorectum. In addition, a large-scale pan-cancer sequencing panel covering 409 genes was applied to selected cases of goblet cell carcinoid/adenocarcinoma ex-goblet cell carcinoid (n=2, respectively). Mutations in colorectal cancer-related genes (eg, TP53, KRAS, APC) were rare to absent in both, goblet cell carcinoids and adenocarcinomas ex-goblet cell carcinoid, but frequent in primary colorectal-type adenocarcinomas of the appendix. Additional large-scale sequencing of selected goblet cell carcinoids and adenocarcinomas ex-goblet cell carcinoid revealed mutations in Wnt-signaling-associated genes (USP9X, NOTCH1, CTNNA1, CTNNB1, TRRAP). These data suggest that appendiceal goblet cell carcinoids and adenocarcinomas ex-goblet cell carcinoid constitute a morphomolecular entity, histologically and genetically distinct from appendiceal colorectal-type adenocarcinomas and its colorectal counterparts. Altered Wnt-signaling associated genes, apart from APC, may act as potential drivers of these neoplasms. The absence of KRAS/NRAS mutations might render some of these tumors eligible for anti-EGFR directed therapy regimens. PMID- 29327704 TI - Emerging nonmetabolic functions of skin fat. AB - Although the major white adipose depots evolved primarily to store energy, secrete hormones and thermo-insulate the body, multiple secondary depots developed additional specialized and unconventional functions. Unlike any other fat tissue, dermal white adipose tissue (dWAT) evolved a large repertoire of novel features that are central to skin physiology, which we discuss in this Review. dWAT exists in close proximity to hair follicles, the principal appendages of the skin that periodically grow new hairs. Responding to multiple hair-derived signals, dWAT becomes closely connected to cycling hair follicles and periodically cycles itself. At the onset of new hair growth, hair follicles secrete activators of adipogenesis, while at the end of hair growth, a reduction in the secretion of activators or potentially, an increase in the secretion of inhibitors of adipogenesis, results in fat lipolysis. Hair-driven cycles of dWAT remodelling are uncoupled from size changes in other adipose depots that are controlled instead by systemic metabolic demands. Rich in growth factors, dWAT reciprocally signals to hair follicles, altering the activation state of their stem cells and modulating the pace of hair regrowth. dWAT cells also facilitate skin repair following injury and infection. In response to wounding, adipose progenitors secrete repair-inducing activators, while bacteria-sensing adipocytes produce antimicrobial peptides, thus aiding innate immune responses in the skin. PMID- 29327708 TI - Myeloproliferative neoplasms with concurrent BCR-ABL1 translocation and JAK2 V617F mutation: a multi-institutional study from the bone marrow pathology group. AB - Myeloproliferative neoplasms arise from hematopoietic stem cells with somatically altered tyrosine kinase signaling. Classification of myeloproliferative neoplasms is based on hematologic, histopathologic and molecular characteristics including the presence of the BCR-ABL1 and JAK2 V617F. Although thought to be mutually exclusive, a number of cases with co-occurring BCR-ABL1 and JAK2 V617F have been identified. To characterize the clinicopathologic features of myeloproliferative neoplasms with concomitant BCR-ABL1 and JAK2 V617F, and define the frequency of co-occurrence, we conducted a retrospective multi-institutional study. Cases were identified using a search of electronic databases over a decade at six major institutions. Of 1570 patients who were tested for both BCR-ABL1 and JAK2 V617F, six were positive for both. An additional five patients were identified via clinical records providing a total of 11 cases for detailed evaluation. For each case, clinical variables, hematologic and genetic data, and bone marrow histomorphologic features were analyzed. The sequence of identification of the genetic abnormalities varied: five patients were initially diagnosed with a JAK2 V617F+ myeloproliferative neoplasm, one patient initially had BCR-ABL1+ chronic myeloid leukemia, while both alterations were identified simultaneously in five patients. Classification of the BCR-ABL1-negative myeloproliferative neoplasms varied, and in some cases, features only became apparent following tyrosine kinase inhibitor therapy. Seven of the 11 patients showed myelofibrosis, in some cases before identification of the second genetic alteration. Our data, reflecting the largest reported study comprehensively detailing clinicopathologic features and response to therapy, show that the co-occurrence of BCR-ABL1 and JAK2 V617F is rare, with an estimated frequency of 0.4%, and most often reflects two distinct ('composite') myeloproliferative neoplasms. Although uncommon, it is important to be aware of this potentially confounding genetic combination, lest these features be misinterpreted to reflect resistance to therapy or disease progression, considerations that could lead to inappropriate management. PMID- 29327706 TI - Nuclear grade and necrosis predict prognosis in malignant epithelioid pleural mesothelioma: a multi-institutional study. AB - A recently described nuclear grading system predicted survival in patients with epithelioid malignant pleural mesothelioma. The current study was undertaken to validate the grading system and to identify additional prognostic factors. We analyzed cases of epithelioid malignant pleural mesothelioma from 17 institutions across the globe from 1998 to 2014. Nuclear grade was computed combining nuclear atypia and mitotic count into a grade of I-III using the published system. Nuclear grade was assessed by one pathologist for three institutions, the remaining were scored independently. The presence or absence of necrosis and predominant growth pattern were also evaluated. Two additional scoring systems were evaluated, one combining nuclear grade and necrosis and the other mitotic count and necrosis. Median overall survival was the primary endpoint. A total of 776 cases were identified including 301 (39%) nuclear grade I tumors, 354 (45%) grade II tumors and 121 (16%) grade III tumors. The overall survival was 16 months, and correlated independently with age (P=0.006), sex (0.015), necrosis (0.030), mitotic count (0.001), nuclear atypia (0.009), nuclear grade (<0.0001), and mitosis and necrosis score (<0.0001). The addition of necrosis to nuclear grade further stratified overall survival, allowing classification of epithelioid malignant pleural mesothelioma into four distinct prognostic groups: nuclear grade I tumors without necrosis (29 months), nuclear grade I tumors with necrosis and grade II tumors without necrosis (16 months), nuclear grade II tumors with necrosis (10 months) and nuclear grade III tumors (8 months). The mitosis necrosis score stratified patients by survival, but not as well as the combination of necrosis and nuclear grade. This study confirms that nuclear grade predicts survival in epithelioid malignant pleural mesothelioma, identifies necrosis as factor that further stratifies overall survival, and validates the grading system across multiple institutions and among both biopsy and resection specimens. An alternative scoring system, the mitosis-necrosis score is also proposed. PMID- 29327709 TI - INSM1 expression and its diagnostic significance in extraskeletal myxoid chondrosarcoma. AB - Extraskeletal myxoid chondrosarcoma is a rare subtype of sarcoma that affects the soft tissue and bones in middle-aged and elderly adults. Its diagnosis can be challenging, with the differential diagnoses including a wide variety of mesenchymal tumors. The line of differentiation of extraskeletal myxoid chondrosarcoma has been controversial, but recent evidence suggests a neuroendocrine phenotype. INSM1 is a zinc-finger transcription factor that plays a pivotal role in neuroendocrine differentiation, and has been proposed as a promising immunohistochemical marker of neuroendocrine carcinoma. The aim of this study was to determine the prevalence of INSM1 expression in extraskeletal myxoid chondrosarcoma and to understand its significance in sarcoma diagnosis. We immunostained the representative sections of 31 NR4A3-rearranged extraskeletal myxoid chondrosarcomas and 187 histological mimics. Nuclear staining of moderate or higher intensity in at least 5% of tumor cells was considered positive. Twenty eight of the 31 extraskeletal myxoid chondrosarcomas (90%) were positive for INSM1, providing strong evidence for neuroendocrine differentiation. The staining was diffuse (>50%) in 17 cases, with most immunopositive tumors showing at least focal strong expression. The INSM1 staining extent was not correlated with cytomorphology, synaptophysin expression, or fusion types (EWSR1 vs non-EWSR1). In contrast, INSM1 expression was negative in 94% of the 187 other mesenchymal tumors. INSM1-positive mimics comprised a small subset of chordoma (1 of 10), soft tissue myoepithelioma (1 of 20), ossifying fibromyxoid tumor (3 of 10), and Ewing sarcoma (3 of 10), among other tumor types. The majority of these cases showed labeling in <25% of the tumor cells. Although not entirely sensitive or specific, INSM1 could be a potential marker for the diagnosis of extraskeletal myxoid chondrosarcoma when molecular genetic access is limited. PMID- 29327710 TI - Genome profiling is an efficient tool to avoid the STUMP classification of uterine smooth muscle lesions: a comprehensive array-genomic hybridization analysis of 77 tumors. AB - The diagnosis of a uterine smooth muscle lesion is, in the majority of cases, straightforward. However, in a small number of cases, the morphological criteria used in such lesions cannot differentiate with certainty a benign from a malignant lesion and a diagnosis of smooth muscle tumor with uncertain malignant potential (STUMP) is made. Uterine leiomyosarcomas are often easy to diagnose but it is difficult or even impossible to identify a prognostic factor at the moment of the diagnosis with the exception of the stage. We hypothesize, for uterine smooth muscle lesions, that there is a gradient of genomic complexity that correlates to outcome. We first tested this hypothesis on STUMP lesions in a previous study and demonstrated that this 'gray category' could be split according to genomic index into two groups. A benign group, with a low to moderate alteration rate without recurrence and a malignant group, with a highly rearranged profile akin to uterine leiomyosarcomas. Here, we analyzed a large series of 77 uterine smooth muscle lesions (from 76 patients) morphologically classified as 19 leiomyomas, 14 STUMP and 44 leiomyosarcomas with clinicopathological and genomic correlations. We confirmed that genomic index with a cut-off=10 is a predictor of recurrence (P<0.0001) and with a cut-off=35 is a marker for poor overall survival (P=0.035). For the tumors confined to the uterus, stage as a prognostic factor was not useful in survival prediction. At stage I, among the tumors reclassified as molecular leiomyosarcomas (ie, genomic index >=10), the poor prognostic markers were: 5p gain (overall survival P=0.0008), genomic index at cut-off=35 (overall survival P=0.0193), 13p loss including RB1 (overall survival P=0.0096) and 17p gain including MYOCD gain (overall survival P=0.0425). Based on these findings (and the feasibility of genomic profiling by array-comparative genomic hybridization), genomic index, 5p and 17p gains prognostic value could be evaluated in future prospective chemotherapy trials. PMID- 29327711 TI - CD3-positive plasmablastic B-cell neoplasms: a diagnostic pitfall. AB - Rare B-cell neoplasms with plasmablastic differentiation may aberrantly express CD3 by immunohistochemical staining, which places a great challenge for diagnosis. We here studied 17 cases of CD3+ plasmablastic B-cell neoplasms, including 12 plasmablastic lymphomas and 5 plasmablastic plasma cell myelomas. All 17 cases occurred in the extranodal sites with a male predominance (13/17). Four cases were initially misinterpreted by outside institutions, among which three were diagnosed as 'peripheral T-cell lymphoma, not otherwise specified' and one was classified as 'poorly differentiated neuroendocrine carcinoma'. The plasmablastic cells were present in all 17 cases diffusely or in a subset of tumor cells. CD3 expression was mostly diffuse (12/17) and moderate to strong (11/16) with a cytoplasmic staining pattern (14/16). Other T-cell markers were nearly absent, including CD2 (0/10), CD4 (1/13), CD5 (0/14), CD7 (0/11), and CD8 (0/13). CD138 was positive in all 17 cases and CD79a was variably positive in 8 of 14 cases. Only one case had immunoreactivity to CD20 (1/17) and PAX5 (1/12). CD56 expression and EBV infection were detected in 8/15 and 6/17, respectively. No HHV8 infection was noted in all 11 cases tested. Most cases (11/13) revealed either kappa or lambda light chain restriction. Of the nine cases studied, six had clonal IGH rearrangements but no clonal TRG rearrangements. Our study further emphasizes that the accurate classification of CD3+ plasmablastic neoplasms requires thorough morphologic examination, incorporation of more B-cell and T cell markers in addition to CD3 and CD20, frequent addition of CD138 staining, and utilization of necessary molecular and genetic studies. PMID- 29327712 TI - Glypican-1 immunohistochemistry is a novel marker to differentiate epithelioid mesothelioma from lung adenocarcinoma. AB - Histological morphology alone is not sufficient for the pathological diagnosis of malignant mesothelioma. Positive and negative immunohistochemical markers are necessary to differentiate it from lung adenocarcinoma. As calretinin and D2-40, the recognized positive markers of mesothelioma, are expressed in lung adenocarcinoma to some extent, novel markers with high specificity are desirable. In this study, we investigated the applicability of glypican-1 immunohistochemistry to differentiate epithelioid mesothelioma from lung adenocarcinoma. We investigated 82 cases of epithelioid mesothelioma and 97 cases of lung adenocarcinoma for glypican-1 expression by immunohistochemistry using a commercially available antibody. All 82 cases of epithelioid mesothelioma showed glypican-1 expression, most with diffuse and strong reactivity. In contrast, only three cases of lung adenocarcinoma showed focal glypican-1 expression. Glypican-1 expression showed 100 sensitivity, 97% specificity, and a 98% accuracy rate to differentiate epithelioid mesothelioma from lung adenocarcinoma. The sensitivity of glypican -1 immunohistochemistry is as high as that of calretinin and D2-40, and its specificity is far better than that of calretinin and D2-40. Therefore, we recommend including glypican -1 immunohistochemistry as a positive marker of epithelioid mesothelioma. PMID- 29327713 TI - Expression of enhancer of zeste homolog 2 (EZH2) protein in histiocytic and dendritic cell neoplasms with evidence for p-ERK1/2-related, but not MYC- or p STAT3-related cell signaling. AB - EZH2 is an important enzymatic subunit of the epigenetic regulator polycomb repressive complex 2 (PRC2), which controls gene silencing through post translational modification, and is overexpressed in various carcinomas and hematopoietic neoplasms. We found that the majority of cases of histiocytic and dendritic cell neoplasms, including histiocytic sarcoma, follicular dendritic cell sarcoma, Langerhans cell histiocytosis, and interdigitating dendritic cell sarcoma, show strong EZH2 expression by immunohistochemical staining, in contrast to benign histiocytic lesions and normal cellular counterparts, which did not show EZH2 expression, suggesting that this molecule may function as an oncogenic protein in these neoplasms. We correlated EZH2 expression with that of p-ERK1/2, MYC, and p-STAT3, potential regulators of EZH2, and found that 60-80% of these cases showed strong p-ERK1/2 expression, and only a minority of cases showed positivity for MYC or p-STAT3 in neoplastic cells. In cases of follicular dendritic cell sarcoma, Langerhans cell histiocytosis, histiocytic sarcoma, and interdigitating dendritic cell sarcoma with strong EZH2 expression, 90%, 89%, 70%, and 100% of cases showed co-expression of p-ERK1/2 with EZH2, respectively, while only a small percentage of these cases showed MYC or p-STAT3 co-expression with EZH2 (<=30%). These findings suggest that the p-ERK1/2 signaling cascade, but not the p-STAT3 and MYC signaling cascades, may regulate EZH2 expression in histiocytic and dendritic cell neoplasms, and that EZH2 and the p-ERK1/2 signaling cascade could serve as therapeutic targets for the treatment of these neoplasms. Interestingly, only a minority of cases of blastic plasmacytoid dendritic cell neoplasm exhibited high EZH2 expression, and only a minority of these cases showed p-ERK1/2 co-expression, suggesting that alternative mechanisms may contribute to tumorigenesis in this aggressive neoplasm. PMID- 29327714 TI - A comprehensive flow-cytometry-based immunophenotypic characterization of Burkitt like lymphoma with 11q aberration. AB - We previously described a subset of MYC translocation-negative aggressive B-cell lymphomas resembling Burkitt lymphoma, characterized by proximal gains and distal losses in chromosome 11. In the 2016 WHO classification, these MYC-negative lymphomas were recognized as a new provisional entity, 'Burkitt-like lymphoma with 11q aberration'. Here we present an immunophenotype analysis of Burkitt-like lymphomas with 11q aberration. Cells were acquired by fine needle aspiration biopsy from 10 young adult patients, 80% of whom presented recurrence-free 5-year survival. Twenty-three MYC-positive Burkitt lymphomas, including three carrying both MYC rearrangement and 11q aberration, served as controls. By immunohistochemistry, all Burkitt-like lymphomas with 11q aberration were CD20+/CD10+/BCL6+/BCL2-/MUM1-/MYC+/EBV-, usually LMO2+/CD44-/CD43- and sometimes CD56+, and showed high proliferation rate. By flow cytometry, Burkitt-like lymphoma with 11q aberration immunophenotypically resembled MYC-positive Burkitt lymphoma, except for significantly (adjusted P<0.001) more frequent CD38higher expression in Burkitt lymphoma (91% MYC-positive Burkitt lymphoma vs 10% Burkitt like lymphoma with 11q aberration), more frequently diminished CD45 expression in Burkitt lymphoma (74% vs 10%), an exclusive CD16/CD56 and highly restricted CD8 expression in Burkitt-like lymphoma with 11q aberration (60% vs 0% and 40% vs 4%, respectively). We showed high diagnostic accuracy and effectiveness of flow cytometry in Burkitt lymphoma. CD16/CD56 expression without CD38higher and the lack of CD16/CD56 with CD38higher expression proves to be a reliable, fast, and cost-effective method for diagnosing 11q aberration and MYC rearrangements in CD10(+) aggressive lymphomas, respectively. In addition, we confirmed a pattern of an inverted duplication with telomeric loss of 11q, as a recurrent 11q abnormality, but one case presented alternative changes, possibly resulting in an equivalent molecular effect. Our findings reveal similarities along with subtle but essential differences in the immunophenotype of Burkitt-like lymphoma with 11q aberration and MYC-positive Burkitt lymphoma, important for the differential diagnosis, but also for understanding the pathogenesis of Burkitt-like lymphoma with 11q aberration. PMID- 29327715 TI - De novo pure erythroid leukemia: refining the clinicopathologic and cytogenetic characteristics of a rare entity. AB - Per the revised fourth edition World Health Organization classification of acute myeloid leukemia, pure erythroid leukemia is now the sole type of acute erythroid leukemia. The diagnosis of this rare entity is often challenging and the cytologic overlap with non-neoplastic (eg, megaloblastic anemia) and neoplastic entities (eg, other types of acute leukemia and non-hematopoietic malignancies) warrants a significant degree of clinical, laboratory, immunophenotypic, and genetic investigation. Given the limited number of reports of this rare and diagnostically challenging entity, we report detailed clinicopathologic characteristics from 15 patients, the largest series thus far, of primary de novo pure erythroid leukemia to provide further diagnostic insights into this entity and reveal strategies for making the diagnosis. We found that de novo pure erythroid leukemia is a disease of adults (median age 68 years), exhibits a striking male predominance, is universally associated with an abnormal karyotype and has an exceedingly poor overall median survival of 1.4 months. Given the general inability of immunophenotypic markers to discriminate neoplastic from non neoplastic erythroid proliferations, key features identified in this study to help establish the diagnosis of pure erythroid leukemia and exclude mimickers include circulating pronormoblasts, clear-cut dysplasia in erythroid, granulocytic, and/or megakaryocytic lineage, utilization of a broad immunophenotypic panel, TP53 immunohistochemical positivity, and identification of a complex, often highly complex, karyotype. Given the gravity of a diagnosis of de novo pure erythroid leukemia, it should be rendered with utmost confidence. PMID- 29327716 TI - Genomic heterogeneity of ALK fusion breakpoints in non-small-cell lung cancer. AB - In lung adenocarcinoma, canonical EML4-ALK inversion results in a fusion protein with a constitutively active ALK kinase domain. Evidence of ALK rearrangement occurs in a minority (2-7%) of lung adenocarcinoma, and only ~60% of these patients will respond to targeted ALK inhibition by drugs such as crizotinib and ceritinib. Clinically, targeted anti-ALK therapy is often initiated based on evidence of an ALK genomic rearrangement detected by fluorescence in situ hybridization (FISH) of interphase cells in formalin-fixed, paraffin-embedded tissue sections. At the genomic level, however, ALK rearrangements are heterogeneous, with multiple potential breakpoints in EML4, and alternate fusion partners. Using next-generation sequencing of DNA and RNA together with ALK immunohistochemistry, we comprehensively characterized genomic breakpoints in 33 FISH-positive lung adenocarcinomas. Of these 33 cases, 29 (88%) had detectable DNA level ALK rearrangements involving EML4, KIF5B, or non-canonical partners including ASXL2, ATP6V1B1, PRKAR1A, and SPDYA. A subset of 12 cases had material available for RNA-Seq. Of these, eight of eight (100%) cases with DNA rearrangements showed ALK fusion transcripts from RNA-Seq; three of four cases (75%) without detectable DNA rearrangements were similarly negative by RNA-Seq, and one case was positive by RNA-Seq but negative by DNA next-generation sequencing. By immunohistochemistry, 17 of 19 (89%) tested cases were clearly positive for ALK protein expression; the remaining cases had no detectable DNA level rearrangement or had a non-canonical rearrangement not predicted to form a fusion protein. Survival analysis of patients treated with targeted ALK inhibitors demonstrates a significant difference in mean survival between patients with next-generation sequencing confirmed EML4-ALK rearrangements, and those without (20.6 months vs 5.4 months, P<0.01). Together, these data demonstrate abundant genomic heterogeneity among ALK-rearranged lung adenocarcinoma, which may account for differences in treatment response with targeted ALK inhibitors. PMID- 29327717 TI - Combined mutation and copy-number variation detection by targeted next-generation sequencing in uveal melanoma. AB - Uveal melanoma is a highly aggressive cancer of the eye, in which nearly 50% of the patients die from metastasis. It is the most common type of primary eye cancer in adults. Chromosome and mutation status have been shown to correlate with the disease-free survival. Loss of chromosome 3 and inactivating mutations in BAP1, which is located on chromosome 3, are strongly associated with 'high risk' tumors that metastasize early. Other genes often involved in uveal melanoma are SF3B1 and EIF1AX, which are found to be mutated in intermediate- and low-risk tumors, respectively. To obtain genetic information of all genes in one test, we developed a targeted sequencing method that can detect mutations in uveal melanoma genes and chromosomal anomalies in chromosome 1, 3, and 8. With as little as 10 ng DNA, we obtained enough coverage on all genes to detect mutations, such as substitutions, deletions, and insertions. These results were validated with Sanger sequencing in 28 samples. In >90% of the cases, the BAP1 mutation status corresponded to the BAP1 immunohistochemistry. The results obtained in the Ion Torrent single-nucleotide polymorphism assay were confirmed with several other techniques, such as fluorescence in situ hybridization, multiplex ligation-dependent probe amplification, and Illumina SNP array. By validating our assay in 27 formalin-fixed paraffin-embedded and 43 fresh uveal melanomas, we show that mutations and chromosome status can reliably be obtained using targeted next-generation sequencing. Implementing this technique as a diagnostic pathology application for uveal melanoma will allow prediction of the patients' metastatic risk and potentially assess eligibility for new therapies. PMID- 29327718 TI - Epithelioid fibrous histiocytoma: molecular characterization of ALK fusion partners in 23 cases. AB - Epithelioid fibrous histiocytoma is a rare and distinctive cutaneous neoplasm. Most cases harbor ALK rearrangement and show ALK overexpression, which distinguish this neoplasm from conventional cutaneous fibrous histiocytoma and variants. SQSTM1 and VCL have previously been shown to partner with ALK in one case each of epithelioid fibrous histiocytoma. The purpose of this study was to examine a large cohort of epithelioid fibrous histiocytomas by next-generation sequencing to characterize the nature and prevalence of ALK fusion partners. A retrospective archival review was performed to identify cases of epithelioid fibrous histiocytoma (2012-2016). Immunohistochemistry was performed to confirm ALK expression. Targeted next-generation sequencing was applied on RNA extracted from formalin-fixed paraffin-embedded tissue to identify the fusion partners. Twenty-three cases fulfilled inclusion criteria. The mean patient age was 39 years (range, 8-74), there was no sex predilection, and >75% of cases involved the lower extremities. The most common gene fusions were SQSTM1-ALK (N=12; 52%) and VCL-ALK (N=7; 30%); the other four cases harbored novel fusion partners (DCTN1, ETV6, PPFIBP1, and SPECC1L). The pattern of ALK immunoreactivity was usually granular cytoplasmic (N=12; 52%) or granular cytoplasmic and nuclear (N=10; 43%); the case containing an ETV6 fusion partner showed nuclear staining alone. There was no apparent relationship between tumor morphology and the ALK fusion partner. In summary, SQSTM1 and VCL are the most common ALK fusion partners in epithelioid fibrous histiocytoma; DCTN1, ETV6, PPFIBP1, and SPECC1L represent rare fusion partners. The proteins encoded by these genes play diverse roles in scaffolding, cell adhesion, signaling, and transcription (among others) without clear commonalities. These findings expand the oncogenic promiscuity of many of these ALK fusion genes, which drive neoplasia in tumors of diverse lineages with widely varied clinical behavior. This is the first documented account of ETV6-ALK and SPECC1L-ALK translocations in neoplasms. PMID- 29327719 TI - The histomorphological spectrum of restrictive chronic lung allograft dysfunction and implications for prognosis. AB - Chronic lung allograft dysfunction continues to be the main contributor to poor long-term allograft survival after lung transplantation. The restrictive phenotype of chronic lung allograft dysfunction carries a particularly poor prognosis. Little is known about the pathogenetic mechanisms involved in restrictive chronic lung allograft dysfunction. In this study, we performed histomorphological and immunohistochemical analysis of restrictive chronic lung allograft dysfunction lungs. Explant lung tissue from 21 restrictive chronic lung allograft dysfunction patients was collected and histopathologic patterns of rejection, fibrosis and vascular changes were scored after routine histochemical stains and additional immunohistochemistry for endothelial markers and C4d. In all, 75% of cases showed evidence of acute cellular rejection; lymphocytic bronchiolitis was absent in most lungs, whereas in 55% there was obliterative bronchiolitis. Almost half of the cases showed a pattern consistent with pleuroparenchymal fibro-elastosis (n=10), and a subset showed nonspecific interstitial pneumonia (n=5) or irregular emphysema (n=5). Fibrinous alveolar exudates were frequently seen in association with fibrosis (n=6), but no diffuse alveolar damage was found. Evidence of microvascular damage was present in most cases. An emphysematous pattern of fibrosis was associated with a better survival (P=0.0030), whereas fibrinous exudates were associated with a worse survival (P=0.0007). In addition to the previously described nonspecific interstitial pneumonia and pleuroparenchymal fibro-elastosis patterns in restrictive chronic lung allograft dysfunction, we are the first to describe a pattern of fibrosis induced subpleural/paraseptal emphysema. This pattern confers a better survival, whereas fibrinous exudates are associated with a worse survival. We believe that our findings offer a pathogenetic theory for pleuroparenchymal fibro-elastosis in restrictive chronic lung allograft dysfunction, and show that restrictive chronic lung allograft dysfunction is an increasingly heterogeneous disease with presumably different mechanisms of subpattern formation. PMID- 29327720 TI - A ten year experience of medical emergencies at Birmingham Dental Hospital. PMID- 29327721 TI - Midazolam use for dental conscious sedation: how safe are we? PMID- 29327722 TI - Healthy lifestyle habits benefit remission of recurrent aphthous stomatitis and RAS type ulceration. AB - In a clinical setting, it is not practical to separate recurrent aphthous stomatitis (RAS) from RAS-type ulceration in every case, so both conditions have been considered together for the purpose of this article. Due to the lack of consistently effective therapeutic options for RAS, other approaches to treat the disease are considered here, beginning with an analysis of possible aetiological factors. The aetiology of RAS, the most common mucosal disease, remains undefined thus far. A few researchers have proposed psychological disorders as a major factor impacting RAS. Some systemic diseases and lifestyle habits are also reported to be associated with RAS; these also impact mental health. I believe that all habits contributing to mental health might also benefit patients with RAS. I suggest that practitioners of oral medicine should recommend a healthy lifestyle to patients with RAS, before prescribing medicines. PMID- 29327723 TI - The role of the consultant in restorative dentistry. AB - The role of a hospital consultant has changed extensively over the past decade as the National Health Service has progressed through a series of challenges including an ageing population and rising costs of clinical care. The traditional concept of a consultant has changed with different and increased expectations of the role as the pressures to deliver high quality patient care, education and advice continue to rise in a difficult financial climate. In addition, consultants in restorative dentistry are faced with the challenge of a poor general awareness of the scope of their speciality and their role. This paper provides an update on how the role of the consultant in restorative dentistry has evolved in the last decade and how it differs from that of other dental specialists and general dental practice. PMID- 29327724 TI - Let's get serious about mentoring. AB - The piece discusses the benefit of mentoring and the importance of formal training, in addition to valuing the skills a mentor can provide. As an understanding of mentoring grows within the dental profession, now is the time to ensure those who offer mentoring have the techniques, tools and skills to complement their professional/clinical expertise. PMID- 29327726 TI - Generation of knock-in cynomolgus monkey via CRISPR/Cas9 editing. PMID- 29327727 TI - Generation of a precise Oct4-hrGFP knockin cynomolgus monkey model via CRISPR/Cas9-assisted homologous recombination. PMID- 29327725 TI - Whole-genome sequencing reveals principles of brain retrotransposition in neurodevelopmental disorders. AB - Neural progenitor cells undergo somatic retrotransposition events, mainly involving L1 elements, which can be potentially deleterious. Here, we analyze the whole genomes of 20 brain samples and 80 non-brain samples, and characterized the retrotransposition landscape of patients affected by a variety of neurodevelopmental disorders including Rett syndrome, tuberous sclerosis, ataxia telangiectasia and autism. We report that the number of retrotranspositions in brain tissues is higher than that observed in non-brain samples and even higher in pathologic vs normal brains. The majority of somatic brain retrotransposons integrate into pre-existing repetitive elements, preferentially A/T rich L1 sequences, resulting in nested insertions. Our findings document the fingerprints of encoded endonuclease independent mechanisms in the majority of L1 brain insertion events. The insertions are "non-classical" in that they are truncated at both ends, integrate in the same orientation as the host element, and their target sequences are enriched with a CCATT motif in contrast to the classical endonuclease motif of most other retrotranspositions. We show that L1Hs elements integrate preferentially into genes associated with neural functions and diseases. We propose that pre-existing retrotransposons act as "lightning rods" for novel insertions, which may give fine modulation of gene expression while safeguarding from deleterious events. Overwhelmingly uncontrolled retrotransposition may breach this safeguard mechanism and increase the risk of harmful mutagenesis in neurodevelopmental disorders. PMID- 29327728 TI - Diverse modes of clonal evolution in HBV-related hepatocellular carcinoma revealed by single-cell genome sequencing. AB - Hepatocellular carcinoma (HCC) is a cancer of substantial morphologic, genetic and phenotypic diversity. Yet we do not understand the relationship between intratumor heterogeneity and the associated morphologic/histological characteristics of the tumor. Using single-cell whole-genome sequencing to profile 96 tumor cells (30-36 each) and 15 normal liver cells (5 each), collected from three male patients with HBV-associated HCC, we confirmed that copy number variations occur early in hepatocarcinogenesis but thereafter remain relatively stable throughout tumor progression. Importantly, we showed that specific HCCs can be of monoclonal or polyclonal origins. Tumors with confluent multinodular morphology are the typical polyclonal tumors and display the highest intratumor heterogeneity. In addition to mutational and copy number profiles, we dissected the clonal origins of HCC using HBV-derived foreign genomic markers. In monoclonal HCC, all the tumor single cells exhibit the same HBV integrations, indicating that HBV integration is an early driver event and remains extremely stable during tumor progression. In addition, our results indicated that both models of metastasis, late dissemination and early seeding, have a role in HCC progression. Notably, early intrahepatic spreading of the initiating clone leads to the formation of synchronous multifocal tumors. Meanwhile, we identified a potential driver gene ZNF717 in HCC, which exhibits a high frequency of mutation at both single-cell and population levels, as a tumor suppressor acting through regulating the IL-6/STAT3 pathway. These findings highlight multiple distinct tumor evolutionary mechanisms in HCC, which suggests the need for specific treatment strategies. PMID- 29327729 TI - H5N1 influenza virus-specific miRNA-like small RNA increases cytokine production and mouse mortality via targeting poly(rC)-binding protein 2. AB - Infection of H5N1 influenza virus causes the highest mortality among all influenza viruses. The mechanisms underlying such high viral pathogenicity are incompletely understood. Here, we report that the H5N1 influenza virus encodes a microRNA-like small RNA, miR-HA-3p, which is processed from a stem loop containing viral RNA precursor by Argonaute 2, and plays a role in enhancing cytokine production during H5N1 infection. Mechanistic study shows that miR-HA-3p targets poly(rC)-binding protein 2 (PCBP2) and suppresses its expression. Consistent with PCBP2 being an important negative regulator of RIG-I/MAVS mediated antiviral innate immunity, suppression of PCBP2 expression by miR-HA-3p promotes cytokine production in human macrophages and mice infected with H5N1 virus. We conclude that miR-HA-3p is the first identified influenza virus-encoded microRNA-like functional RNA fragment and a novel virulence factor contributing to H5N1-induced 'cytokine storm' and mortality. PMID- 29327730 TI - Eosinophil-derived CCL-6 impairs hematopoietic stem cell homeostasis. AB - Eosinophils (Eos) have been long considered as end-stage effector cells in the hierarchical hematopoietic system. Numerous lines of evidence have suggested that Eos are multifunctional leukocytes with respect to the initiation, propagation and regulation of various inflammatory or immune reactions, especially in allergic diseases. Recent studies have shown that Eos are also required for maintenance of bone marrow plasma cells and differentiation of B cells. However, it remains unclear whether Eos contributes to regulation of hematopoietic stem cell (HSC) homeostasis. Here, we demonstrate that Eos disrupt HSC homeostasis by impairing HSC quiescence and reconstitution ability in wild-type mice following ovalbumin (OVA) challenge and even by causing bone marrow HSC failure and exhaustion in Cd3delta-Il-5 transgenic mice. The impaired maintenance and function of HSCs were associated with Eos-induced redox imbalance (increased oxidative phosphorylation and decreased anti-oxidants levels). More importantly, using mass spectrometry, we determined that CCL-6 is expressed at a high level under eosinophilia. We demonstrate that CCL-6 is Eos-derived and responsible for the impaired HSC homeostasis. Interestingly, blockage of CCL-6 with a specific neutralizing antibody, restored the reconstitution ability of HSCs while exacerbating eosinophilia airway inflammation in OVA-challenged mice. Thus, our study reveals an unexpected function of Eos/CCL-6 in HSC homeostasis. PMID- 29327731 TI - Transoral robotic surgery in Eagle's syndrome: our experience on four patients. AB - Eagle's syndrome is characterised by focal pain in the tonsillar fossa on wide mouth opening or head rotation and various accompanying symptoms. While the syndrome is difficult to diagnose, shortening the styloid process via a transoral or transcervical surgical approach has been shown to be the most effective treatment. The aim of this article was to document our experience with a transoral robotic approach to treat Eagle's syndrome and to present the outcomes of four patients. We reviewed the cases of four patients with Eagle's syndrome who underwent transoral robotic surgery (TORS). The average age of patients was 53.75 years, and there were equal numbers of males and females. The styloid processes were reconstructed in 3D from the preoperative CT scans and were measured as an average of 4.18 cm (range 3.3-5.1). The mean set-up time and operation times were less than 10 minutes and 30 minutes, respectively. All patients were completely relieved of symptoms, and were able to restart an oral diet on post-operative day 1. No patient suffered intraoperative or postoperative complication, including cranial nerve injury, haemorrhage, or deep neck infection. In our experience, transoral excision of the styloid process via a robotic approach can be considered as a feasible treatment option for Eagle's syndrome. PMID- 29327732 TI - A miRNA signature suggestive of nodal metastases from laryngeal carcinoma. AB - The discovery that miRNAs are frequently deregulated in tumours offers the opportunity to identify them as prognostic and diagnostic markers. The aim of this multicentric study is to identify a miRNA expression profile specific for laryngeal cancer. The secondary endpoint was to identify specific deregulated miRNAs with potential as prognostic biomarkers for tumour spread and nodal involvement, and specifically to search for a miRNA pattern pathognomonic for N+ laryngeal cancer and for N- tissues. We identified 20 miRNAs specific for laryngeal cancer and a tissue-specific miRNA signature that is predictive of lymph node metastases in laryngeal carcinoma characterised by 11 miRNAs, seven of which are overexpressed (upregulated) and four downregulated. These results allow the identification of a group of potential specific tumour biomarkers for laryngeal carcinoma that can be used to improve its diagnosis, particularly in early stages, as well as its prognosis. PMID- 29327733 TI - Orthopaedic treatment effects of functional therapy on the sagittal pharyngeal dimensions in subjects with sleep-disordered breathing and Class II malocclusion. AB - The purpose of this cephalometric study was to evaluate the craniofacial changes induced by functional treatment of mandibular advancement with special regard to pharyngeal sagittal airway dimensions, tongue and hyoid bone position in subjects with sleep-disordered breathing (SDB) and dentoskeletal Class II malocclusions compared with an untreated Class II control group. 51 subjects (24 female, 27 male; mean age 9.9 +/- 1.3 years) with Class II malocclusion and SDB consecutively treated with a functional appliance (Modify Monobloc, MM) were compared with a control group of 31 subjects (15 males, 16 females; mean age 10.1 +/- 1.1) with untreated Class II malocclusion. For the study group, mode of breathing was defined by an otorhinolaryngologist according to complete physical examination. The parents of all participants completed a modified version of the paediatric sleep questionnaire, PSQ-SRBD Scale, by Ronald Chervin (the Italian version in 22 items form) before and after the trial. Lateral cephalograms were available at the start and end of treatment with the MM. Descriptive statistics were used for all cephalometric measurements in the two groups for active treatment changes. Significant, favourable skeletal changes in the mandible were observed in the treated group after T2. Significant short-term changes in sagittal airway dimensions, hyoid position and tongue position were induced by functional therapy of mandibular advancement in subjects with Class II malocclusion and SDB compared with untreated controls. After orthodontic treatment, a significant reduction in diurnal symptoms was observed in 45 of the 51 participants who had received an oral appliance. Orthodontic treatment is considered to be a potential therapeutic approach for SDB in children. Orthodontists are playing an increasingly important role in managing snoring and respiratory problems by oral mandibular advancement devices and rapid maxillary expansion. PMID- 29327734 TI - Clinical study of extrapulmonary head and neck tuberculosis in an urban setting. AB - Tuberculosis (TB) of the head and neck region is quite common in endemic countries, but is still misdiagnosed due to its varied presentation and different sites of involvement. The aims of the present study were to present the diversities of presentation of head and neck tuberculosis with the diagnostic predicaments faced during evaluation and to assess treatment response to anti tubercular treatment (ATT). We analysed 48 patients with head and neck tuberculosis who presented to the Department of Otorhinolaryngology in our tertiary care urban hospital over a period of two years from 2013 to 2015 and recorded their data, which included presenting complaints, local and systemic examination findings, investigation results and treatment outcomes. The results showed that majority (64.5%) of cases were female and none of the patients were HIV positive. The most common manifestation was cervical lymphadenopathy (81.25%) with level II being the most commonly affected (31.3%). Three of the 48 patients had coexisting pulmonary TB. Fine needle aspiration cytology (FNAC), histopathological diagnosis and acid fast bacilli (AFB) staining were used to confirm diagnosis. All patients were treated with Category I ATT, which achieved cure in 96.8% of cases. Though cervical lymphadenitis is the most common presentation of head and neck TB, isolated involvement of the sinonasal region, larynx, oral cavity and other sub-sites are not solely unknown entities. It is, therefore, important for clinicians to be aware of atypical and misleading presentations and consider TB as a major differential diagnosis in the head and neck region, even in non-immunocompromised individuals. PMID- 29327736 TI - Balloon dilation of the Eustachian tube: clinical experience in the management of 126 children. AB - Balloon dilation of the Eustachian tube has been recently introduced as a novel and minimally invasive method for treating chronic obstructive Eustachian tube dysfunction. For the first time worldwide, we assessed the role of this technique in the treatment of children with Eustachian tube dysfunction who did not respond to other treatments. We retrospectively analysed the medical records of 60 children (mean age: 6.3 years, range: 28 months to 12 years) who underwent balloon dilation of the Eustachian tube using the Bielefeld balloon catheter. In addition, the parents of a further 66 children who underwent balloon dilation (mean age: 8 years, range: 4 to 13 years) were asked to complete a standardised written questionnaire and were interviewed by telephone about the postoperative course of their children. There were no complications during surgery. Clinical symptoms improved in more than 80% of patients. No patient reported a deterioration of symptoms. Of the participating parents, 81.3% were very satisfied or satisfied with the outcome of treatment. Balloon dilation is a rapid, simple and safe method for the treatment of both adults and children with Eustachian tube dysfunction that does not respond to other treatments. Further studies, ideally multicentre studies, are required in order to optimise the definition of existing and potential new indications for this treatment approach and to establish this treatment in the management of children with refractory chronic Eustachian tube dysfunction. PMID- 29327735 TI - Acquired sensorineural hearing loss in children: current research and therapeutic perspectives. AB - The knowledge of mechanisms responsible for acquired sensorineural hearing loss in children, such as viral and bacterial infections, noise exposure, aminoglycoside and cisplatin ototoxicity, is increasing and progressively changing the clinical management of affected patients. Viral infections are by far the most relevant cause of acquired hearing loss, followed by aminoglycoside and platinum derivative ototoxicity; moreover, cochlear damage induced by noise overexposure, mainly in adolescents, is an emerging topic. Pharmacological approaches are still challenging to develop a truly effective cochlear protection; however, the use of steroids, antioxidants, antiviral drugs and other small molecules is encouraging for clinical practice. Most of evidence on the effectiveness of antioxidants is still limited to experimental models, while the use of corticosteroids and antiviral drugs has a wide correspondence in literature but with controversial safety. Future therapeutic perspectives include innovative strategies to transport drugs into the cochlea, such as molecules incorporated in nanoparticles that can be delivered to a specific target. Innovative approaches also include the gene therapy designed to compensate for abnormal genes or to make proteins by introducing genetic material into cells; finally, regenerative medicine (including stem cell approaches) may play a central role in the upcoming years in hearing preservation and restoration even if its role in the inner ear is still debated. PMID- 29327737 TI - Uphill/downhill nystagmus. AB - Differential diagnosis between peripheral and central spontaneous nystagmus can be difficult to classify (as peripheral or central) even on the basis of criteria recommended in the recent literature. The aim of this paper is to use the combination of spontaneous nystagmus and ocular tilt reaction to determine the site of origin of the disease that causes nystagmus. We propose to classify the nystagmus in: 1) "Uphill" nystagmus in which the nystagmus takes on an inclined plane and the direction of the fast phase is towards the hypertropic eye (this type of nystagmus is likely peripheral); 2) "Downhill" nystagmus when the nystagmus beats toward the hypotropic eye (this type of nystagmus is likely central); 3) "Flat" nystagmus when the plane on which nystagmus beats is perfectly horizontal: in this case, we cannot say anything about the site of lesion (it was only detected in 15% of cases). The spatial position of nystagmus vector has to be considered as an intrinsic characteristic of the nystagmus itself (as direction, frequency, angular velocity etc.) and must be reported in the description, possibly giving an indication of the site of damage (peripheral or central). In particular, similar results are obtained by comparing the inclination of the nystagmus with the head impulse test (HIT, considered the best bedside test now available). It seems that this sign may confirm HIT for safer diagnosis or replace it in case of doubt. In contrast, in case of "Flat" nystagmus (probably attributable to the fact that the utricular maculae are spared), HIT can replace observation of the plane of the nystagmus. Thus, the two signs confirm and integrate each other. The test does not require additional time and is not tedious for the patient. It is proposed that it be included in the evaluation of spontaneous nystagmus in everyday clinical practice. PMID- 29327738 TI - Increased Mortality in Male Recipients of Red Cells from ever Pregnant Female Donors: mHAGs on Red Cells to Blame? PMID- 29327740 TI - Correction: Neither slim nor fat: estimating the mass of the dodo (Raphus cucullatus, Aves, Columbiformes) based on the largest sample of dodo bones to date. AB - [This corrects the article DOI: 10.7717/peerj.4110.]. PMID- 29327739 TI - Numerical Simulation of Thrombotic Occlusion in Tortuous Arterioles. AB - Tortuous microvessels alter blood flow and stimulate thrombosis but the physical mechanisms are poorly understood. Both tortuous microvessels and abnormally large platelets are seen in diabetic patients. Thus, the objective of this study was to determine the physical effects of arteriole tortuosity and platelet size on the microscale processes of thrombotic occlusion in microvessels. A new lattice Boltzmann method-based discrete element model was developed to simulate the fluid flow field with fluid-platelet coupling, platelet interactions, thrombus formation, and thrombotic occlusion in tortuous arterioles. Our results show that vessel tortuosity creates high shear stress zones that activate platelets and stimulate thrombus formation. The growth rate depends on the level of tortuosity and the pressure and flow boundary conditions. Once thrombi began to form, platelet collisions with thrombi and subsequent activations were more important than tortuosity level. Thrombus growth narrowed the channel and reduced the flow rate. Larger platelet size leads to quicker decrease of flow rate due to larger thrombi that occluded the arteriole. This study elucidated the important roles that tortuosity and platelet size play in thrombus formation and occlusion in arterioles. PMID- 29327741 TI - Fabrication and assessment of an electrospun polymeric microfiber-based platform under bulk flow conditions with rapid and efficient antigen capture. AB - This study investigated the fabrication and proof of concept design demonstrating rapid and highly sensitive antigen capture utilizing electrospun polystyrene (PS) microfiber mat substrates paired with vacuum pump pressurization to induce bulk flow. In comparison with conventional flat PS surfaces used for immunoassay purposes, this system optimizes the increased surface area of the electrospun polystyrene (ESPS) fiber mat substrates and the accelerated propagation of the antigen through the detection platform by using a vacuum pump to enable efficient and rapid antigen capture. The novelty of this work was demonstrated through a parametric study detailing how a fiber substrate can capture antigen sensitively and at high speeds. In terms of sensitivity, the current system is comparable to the conventionally used flat PS substrates. Additionally, the amount of antigen captured on a flat PS substrate in 60 minutes was surpassed in under 5 seconds when utilizing the ESPS-vacuum system. Three-dimensional ESPS fiber mats were then noted as a comparison between Damkohler numbers and between flat PS and ESPS vacuum systems. The bulk flow of the ESPS-vacuum system allows for a Damkohler number of 0.37 indicating a balance between the flow rate and the reaction rate as opposed to a PS flat platform of 5.80 * 104 which illustrates a diffusion rate limited system. Finally, the overall ESPS-vacuum system was tested for its immunoassay capability. A sandwich fluorescence-based immunoassay was performed on both PS flat-diffusion and ESPS-vacuum systems. The ESPS-vacuum system indicated a wider detection range capability from 5 to 1000 ng mL-1 in comparison with the PS flat-diffusion system at 5 to 100 ng mL-1. PMID- 29327742 TI - Targeting cleanups towards a more sustainable future. AB - A tension arises between society's disposition to protect people at risk from environmental pollution, and an aversion towards the potential harmful side effects associated with cleanup activities. Here we explore how setting different cleanup standards may influence some of the environmental, social, and economic side-effects of remediation, and how they can be quantified for incorporation into cleanup target setting; these include (1) secondary environmental impacts, assessed by life cycle assessment (LCA); (2) fatalities and injuries, assessed by actuarial risk analysis; and (3) the cost effectiveness of stringent cleanup standards, assessed by the incremental cost-effectiveness ratio (ICER). We argue that only by using optimal cleanup standards that integrate quantified remediation side-effects with health risk assessment (HRA) can the green and sustainable remediation (GSR) movement maximize its potential. Together, the combined approaches may provide a more holistic management of risks for a more sustainable future. PMID- 29327743 TI - The unexpected racemization and hydrogen-deuterium exchange of the hydrogen at the alpha-carbon of proline analogs containing the 5-azoniaspiro[4.4]nonyl-group. AB - Recently, we developed a novel non-fragmenting quaternary ammonium ionization tag for the mass spectrometric sensitive sequencing of peptides, based on the N-spiro proline residue (5-azoniaspiro[4.4.]nonyl-carbonyl). Herein, we present an unexpected racemization and the hydrogen-deuterium exchange (HDX) at the alpha-C atom of the proline derivative under basic aqueous conditions (1% water solution of triethylamine). The deuterium atom, substituted for the alpha-C atom, does not undergo back-exchange under acidic aqueous conditions which makes the deuterated isotopologue a promising stabile isotope-coded internal standard for quantitative analysis by mass spectrometry. The applicability of the prepared isotopologues of the quaternary ammonium salt labeled peptides for quantification experiments using the isotopic dilution method was also examined. PMID- 29327744 TI - Spinel Co3O4 nanomaterials for efficient and stable large area carbon-based printed perovskite solar cells. AB - Carbon based perovskite solar cells (PSCs) are fabricated through easily scalable screen printing techniques, using abundant and cheap carbon to replace the hole transport material (HTM) and the gold electrode further reduces costs, and carbon acts as a moisture repellent that helps in maintaining the stability of the underlying perovskite active layer. An inorganic interlayer of spinel cobaltite oxides (Co3O4) can greatly enhance the carbon based PSC performance by suppressing charge recombination and extracting holes efficiently. The main focus of this research work is to investigate the effectiveness of Co3O4 spinel oxide as the hole transporting interlayer for carbon based perovskite solar cells (PSCs). In these types of PSCs, the power conversion efficiency (PCE) is restricted by the charge carrier transport and recombination processes at the carbon-perovskite interface. The spinel Co3O4 nanoparticles are synthesized using the chemical precipitation method, and characterized by X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and UV-Vis spectroscopy. A screen printed thin layer of p-type inorganic spinel Co3O4 in carbon PSCs provides a better-energy level matching, superior efficiency, and stability. Compared to standard carbon PSCs (PCE of 11.25%) an improved PCE of 13.27% with long-term stability, up to 2500 hours under ambient conditions, is achieved. Finally, the fabrication of a monolithic perovskite module is demonstrated, having an active area of 70 cm2 and showing a power conversion efficiency of >11% with virtually no hysteresis. This indicates that Co3O4 is a promising interlayer for efficient and stable large area carbon PSCs. PMID- 29327745 TI - Bipyridine-triggered modulation of structure and properties of zinc diphosphonates: coordination role vs. template rule. AB - Two zinc-diphosphonates driven by 4,4'-bipyridine (4,4'-bipy), [Zn4(HEDP)2(4,4' bipy)2].4.5(H2O) (1) and (H2-4,4'-bipy)0.5.[Zn3(HEDP)(H2EDP)(H2O)].1.5(H2O) (2), were solvothermally prepared (HEDP = CH3C(OH)(PO3)2, 1 hydroxyethylidenediphosphonate). Compound 1 features a layered structure with the Zn-HEDP chains as supramolecular units and 4,4'-bipy as interchain linkers. Compound 2 possesses a Zn-HEDP layer with protonated 4,4'-bipy as template. The structure differences between the two compounds are mainly ascribed to the distinct role of 4,4'-bipy in the process of in situ assembly. In compound 1, the 4,4'-bipy moiety acts as coordinative unit to participate in the formation of the resulting architecture. However, in compound 2, the protonated 4,4'-bipy serves as template to direct the formation of the final structure. The luminescence and proton conduction of the two compounds were investigated. Compounds 1 and 2 exhibit intense blue fluorescence; compound 2 has a proton conductivity of 2.61 * 10-4 S cm-1 at 100% relative humidity and 70 degrees C. PMID- 29327747 TI - Temperature- and excitation wavelength-dependent emission in a manganese(ii) complex. AB - A mononuclear manganese(ii) complex with a chelating 4-(3,5-diphenyl-1H-pyrazol-1 yl)-6-(piperidin-1-yl)pyrimidine ligand (L), [MnL2Cl2].H2O, shows intriguing excitation wavelength-dependent emission. Depending on the excitation wavelength, the complex demonstrates three emission bands with the maxima at 380 nm, 440 nm and 495 nm. The 380 nm and 440 nm emissions originate from the pi -> pi* and n -> pi* ligand-centered transitions. The long-wave 495 nm emission with microsecond lifetimes is related to the d-d transitions and/or metal-to-ligand and halogen-to ligand charge transfer. The emission behavior of this complex is strongly temperature-dependent: upon cooling from 300 K down to 77 K, the intensity of emission considerably increases. The enhancement of the luminescence upon cooling is accompanied by the appearance of the vibrational structure. This complex is the first example of manganese(ii) complexes demonstrating excitation wavelength dependent emission. PMID- 29327746 TI - Silk nanoparticles: from inert supports to bioactive natural carriers for drug delivery. AB - Silk proteins have been studied and employed for the production of drug delivery (nano)systems. They show excellent biocompatibility, controllable biodegradability and non-immunogenicity and, if needed, their properties can be modulated by blending with other polymers. Silk fibroin (SF), which forms the inner core of silk, is a (bio)material officially recognized by the Food and Drug Administration for human applications. Conversely, the potential of silk sericin (SS), which forms the external shell of silk, could still be considered under evaluation. At the best of our knowledge, nanoparticles based on silk sericin "alone" cannot be produced, due to its physicochemical instability influenced by extreme pH, high water solubility and temperature; for these reasons, it almost always needs to be combined with other polymers for the development of drug delivery systems. In this review, we focused on silk proteins as bioactive natural carriers, since they show not only optimal features as inert excipients, but also remarkable intrinsic biological activities. SF has anti-inflammatory properties, while SS presents antioxidant, anti-tyrosine, anti-aging, anti elastase and anti-bacterial features. Here, we give an overview on SF or SS silk based nanosystems, with particular attention on the production techniques. PMID- 29327748 TI - Four new metal-organic frameworks based on diverse secondary building units: sensing and magnetic properties. AB - Four new metal-organic frameworks (MOFs), {[Zn3(L)(OH)(H2O)5].NMP.2H2O}n (1), {[H2N(Me)2][Zn2(L)(H2O)].DMF.H2O}n (2), {[Co5(L)2(H2O)11].2H2O}n (3) and {[Mn5(L)2(H2O)12].6H2O}n (4), were assembled employing a symmetrical V-shaped rigid multicarboxylic acid ligand H5L (H5L = 2,4-di(3',5' dicarboxylphenyl)benzoic acid) with different metal ions, resulting in versatile frameworks as well as various types of coordination modes of H5L. 1 forms a three dimensional (3D) 4-connected sra net based on trinuclear [Zn3(MU3-OH)(MU2 COO)(MU1-COO)4] clusters, while 2 displays a 3D (4,6)-connected net based on two types of binuclear [Zn2(MU2-COO)2(MU1-COO)4] and [Zn2(MU2-COO)4] clusters. 3 and 4 contain similar [M3(MU2-COO)4(MU1-COO)2] (3, M = Co; 4, M = Mn) clusters but result in different 4-connected 3D and 2D frameworks, respectively. 1 and 2 show solid-state luminescence properties at ambient temperature. Meanwhile, 1 shows high selectivity and sensitivity for not only Fe3+ cations but also for CrO42-, Cr2O72- and MnO4- anions via a luminescence quenching effect with a low detection limit, which thus means that it could be a potential crystalline material for detecting these anions. The mechanisms of the quenching effect and sensing properties of 1 are discussed in detail. In addition, 3 and 4 have the presence of antiferromagnetic interactions between the metal ions. PMID- 29327749 TI - Fabrication of high-performance graphene nanoplatelet-based transparent electrodes via self-interlayer-exfoliation control. AB - Graphene nanoplatelets (GNP) have attracted considerable attention due to their high yield and fabrication route that is scalable to enable graphene production. However, the absence of a means of fabricating a transparent and conductive GNP film has been the biggest obstacle to the replacement of pristine graphene. Here, we report on a novel means of fabricating uniform and thin GNP-based high performance transparent electrodes for flexible and stretchable optoelectronic devices involving the use of an adhesive polymer layer (PMMA) as a GNP layer controller and by forming a hybrid GNP/AgNW electrode embedded on PET or PDMS. Relative to the commercially available indium tin oxide (ITO) film on a PET substrate, a GNP-based electrode composed of hybrid GNP/AgNW on PET exhibits superb optical, physical, and electrical properties: a sheet resistance of 12 Omega sq-1 with 87.4% transmittance, a variable work function from 4.16 to 5.26 eV, an ultra-smooth surface, a rate of resistance increase of only 4.0% after 100 000 bending cycles, stretchability to 50% of tensile strain, and robust stability against oxidation. Moreover, the GNP-based electrode composed of hybrid Cl-doped GNP/AgNW shows outstanding performance in actual organic light-emitting diodes (OLEDs) by exhibiting an increased current efficiency of 29.5% and an increased luminous efficiency of 36.2%, relative to the commercial ITO electrode on PET. PMID- 29327750 TI - Synthesis and reactivity of an anionic allenylidene complex. AB - The reaction of [W([triple bond, length as m-dash]CC[triple bond, length as m dash]CSiMe3)(CO)2(Tp*)] (Tp* = hydrotris(dimethylpyrazolyl)borate) with MeLi generates the first example of an anionic allenylidene complex Li[W([double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m dash]CMeSiMe3)(CO)2(Tp*)] which reacts with electrophiles (H+, Me+) at the beta carbon to afford vinylcarbyne (allylidyne) complexes [W([triple bond, length as m dash]CCE[double bond, length as m-dash]CMeSiMe3)(CO)2(Tp*)] (E = H, Me), and with bromine provides the unprecedented binuclear bis(carbyne) complex {C([double bond, length as m-dash]CMeSiMe3)C[triple bond, length as m-dash]W(CO)2(Tp*)}2via oxidative C-C coupling at the beta-carbon. PMID- 29327751 TI - A novel covalent post-synthetically modified MOF hybrid as a sensitive and selective fluorescent probe for Al3+ detection in aqueous media. AB - A modified MOF named UiO-66-NH2-SA was synthesized based on the covalent post synthetic attachment of the MOFs (UiO-66-NH2) and salicylaldehyde via a Schiff base reaction. The as-prepared functionalized UiO-66-NH2-SA not only maintains its structural integrity during the PSM process, but also shows excellent luminescence and good fluorescence stability in water. It was further utilized as a novel fluorescent probe for detecting of Al3+. The fluorescence intensity of UiO-66-NH2-SA increased linearly upon increasing the concentration of Al3+ in the range of 0-500 MUM with a detection limit of 6.98 MUM. The possible mechanism is discussed. This study presents a new ratiometric and colorimetric Al3+ fluorescent sensor. The good fluorescence stability of UiO-66-NH2-SA in aqueous media, the low detection limit and the broad linear in sensing Al3+ indicate its high potential in practical applications. PMID- 29327752 TI - Chiral evolution of carbon dots and the tuning of laccase activity. AB - Chirality has attracted extensive attention in many fields ranging from chemistry to life sciences. Carbon dots (CDs) with good biocompatibility and unique photochemical properties have become a new star in the nanocarbon family. Endowed with chirality, CDs will exhibit more marvellous properties and bridge the fields of material chemistry and life sciences tightly. Herein, we report a facile one step alkali-assisted electrochemical method to fabricate chiral CDs from cysteine (cys). We showed the chiral evolution of CDs with highly symmetrical circular dichroism (CD) signals in the range from 205 to 350 nm. These chiral CDs have been further demonstrated to be capable of tuning the activity of laccase: the l CDs can improve the activity of the enzyme up to 20.2%, whereas the d-CDs decrease the activity to 10.4%. A series of experiments confirm that it is the synergistic effect of nanosize and chirality of CDs that induces the change in the structure of laccase and thus leads to the tuning of the laccase activity. PMID- 29327753 TI - Recyclable (Fe3O4-NaYF4:Yb,Tm)@TiO2 nanocomposites with near-infrared enhanced photocatalytic activity. AB - Herein, the design and synthesis of a multifunctional (Fe3O4-NaYF4:Yb,Tm)@TiO2 photocatalyst through a facile sol-gel process combined with electrostatic self assembly has been reported. Particularly, as an upconversion sensor, NaYF4:Yb,Tm nanoparticles have the ability to convert near-infrared (NIR) light into ultraviolet (UV) emissions, so that the catalytic body TiO2 can indirectly utilize the NIR part of sunlight but not UV light. The excellent photocatalytic activity of the hybrid samples is evaluated using a model of the degradation of methylene blue (MB). Most importantly, the obtained materials exhibit remarkable magnetic properties because of the addition of a magnetic component (Fe3O4), therefore, the photocatalysts possess desired recyclability and reusability, which is significant for actual applications. Finally, the possible photocatalysis mechanism of the nanohybrids is discussed and hydroxyl radicals (OH) are confirmed as the main reactive species. PMID- 29327754 TI - Affinity resins as new tools for identifying target proteins of ascorbic acid. AB - l-Ascorbic acid (AA) has diverse physiological functions, but little is known about the functional mechanisms of AA. In this study, we synthesized two types of affinity resin on which AA is immobilized in a stable form to identify new AA targeted proteins, which can provide important clues for elucidating unknown functional mechanisms of AA. To our knowledge, an affinity resin on which AA as a ligand is immobilized has not been prepared, because AA is very unstable and rapidly degraded in an aqueous solution. By using the affinity resins, cytochrome c (cyt c) was identified as an AA-targeted protein, and we showed that oxidized cyt c exhibits specific affinity for AA. These results suggest that two kinds of AA-affinity resin can be powerful tools to identify new target proteins of AA. PMID- 29327755 TI - Reversible three equal-step spin crossover in an iron(ii) Hofmann-type metal organic framework. AB - A novel bent ligand-pillared three-dimensional Hofmann-type metal-organic framework, [FeII(Hbpt)Pt(CN)4].1/2Hbpt.1/2CH3OH.5/2H2O [1, Hbpt = 4,4'-(1H-1,2,4 triazole-3,5-diyl) dipyridine], was synthesized and crystallographically and magnetically characterized, which showed incomplete three-step spin-crossover behavior with a reversible three equal-step sequence of HS1.00 <-> HS0.75LS0.25 < > HS0.5LS0.5 <-> HS0.25LS0.75. PMID- 29327757 TI - Rapid and sensitive detection of neuron specific enolase with a polydopamine coated plasmonic chip utilizing a rear-side coupling method. AB - A rapid and sensitive detection of a cancer marker, neuron specific enolase (NSE), is demonstrated by using a disposable silver plasmonic chip functionalized with a mussel-inspired polydopamine (PDA) coating. A plasmonic chip consisting of a diffraction grating coated with a silver thin film is used for the excitation of propagating surface plasmon resonance through a rear-side grating coupling method. Simple and quick bio-functionalization of the sensor surface is performed by PDA coating which requires 20 min for deposition, and allows direct attachment of the capture antibody without using any coupling agents. A fluorescence based sandwich immunoassay is used for the detection of NSE by utilizing surface plasmon enhanced fluorescence (SPF) spectroscopy. The developed biosensor scheme provides approximately linear sensor responses for the sample containing NSE with the concentration around the clinically important value (12 ng mL-1) in both buffer and diluted human serum (25 vol% to a buffer solution). The detection limit for NSE is 0.5 ng mL-1 (11 pM) and 1.4 ng mL-1 (30 pM) in a buffer solution and diluted human serum, respectively. The presented biosensor scheme requires a small amount of the sample down to 10 MUL in human serum and a short incubation time (15 min) of the sample solution containing NSE, enabling less invasive and rapid detection of NSE. This is the first example of the sensitive sandwich immunoassay demonstrated by using a plasmonic chip for the measurement of the sample dissolved in a complex medium with a rear side coupling method, which progresses the universal use of the SPF biosensors with a disposable plasmonic chip. PMID- 29327756 TI - Isomeric and hybrid ferrocenyl/cyrhetrenyl aldimines: a new family of multifunctional compounds. AB - The synthesis and characterization of two novel and isomeric hybrid ferrocenyl/cyrhetrenyl aldimines [(eta5-C5H5)Fe{(eta5-C5H4)-CH[double bond, length as m-dash]N-(eta5-C5H4)}Re(CO)3] (1) and [(eta5-C5H5)Fe{(eta5-C5H4) N[double bond, length as m-dash]CH-(eta5-C5H4)}Re(CO)3] (2) are reported. Their X ray crystal structures reveal that both adopt the E form. However, molecules of 1 and 2 differ in the relative arrangement of the "Fe(eta5-C5H5)" and "Re(CO)3" units (anti in 1 and syn in 2). This affects the type of intermolecular interactions, the assembly of the molecules and therefore their crystal architecture. Comparative studies of their electrochemical, spectroscopic and photo-physical properties have allowed us to clarify the effect produced by the location of the organometallic arrays (ferrocenyl or cyrhetrenyl) on electronic delocalization, the proclivity of the metals to undergo oxidation and their emissive properties. Theoretical studies based on Density Functional Theory (DFT) calculations on the two compounds have also been carried out in order to rationalize the experimental results and to assign the bands detected in their electronic spectra. The cytotoxic activities of compounds 1 and 2 against human adenocarcinoma cell lines [breast (MCF7 and MDA-MB-231) and colon (HCT-116)] reveal that imine 2 has a greater inhibitory growth effect than 1 and it is ca. 1.8 times more potent than cisplatin in the triple negative MDA-MB 231 and in the cisplatin resistant HCT-116 cell lines. A comparative study of their effect on the normal and non-tumour human skin fibroblast BJ cell lines is also reported. PMID- 29327758 TI - A computational analysis of pro-angiogenic therapies for peripheral artery disease. AB - Inducing therapeutic angiogenesis to effectively form hierarchical, non-leaky networks of perfused vessels in tissue engineering applications and ischemic disease remains an unmet challenge, despite extensive research and multiple clinical trials. Here, we use a previously-developed, multi-scale, computational systems pharmacology model of human peripheral artery disease to screen a diverse array of promising pro-angiogenic strategies, including gene therapy, biomaterials, and antibodies. Our previously-validated model explicitly accounts for VEGF immobilization, Neuropilin-1 binding, and weak activation of VEGF receptor 2 (VEGFR2) by the "VEGFxxxb" isoforms. First, we examine biomaterial based delivery of VEGF engineered for increased affinity to the extracellular matrix. We show that these constructs maintain VEGF close to physiological levels and extend the duration of VEGFR2 activation. We demonstrate the importance of sub-saturating VEGF dosing to prevent angioma formation. Second, we examine the potential of ligand- or receptor-based gene therapy to normalize VEGF receptor signaling. Third, we explore the potential for antibody-based pro-angiogenic therapy. Our model supports recent observations that improvement in perfusion following treatment with anti-VEGF165b in mice is mediated by VEGF-receptor 1, not VEGFR2. Surprisingly, the model predicts that the approved anti-VEGF cancer drug, bevacizumab, may actually improve signaling of both VEGFR1 and VEGFR2 via a novel 'antibody swapping' effect that we demonstrate here. Altogether, this model provides insight into the mechanisms of action of several classes of pro angiogenic strategies within the context of the complex molecular and physiological processes occurring in vivo. We identify molecular signaling similarities between promising approaches and key differences between promising and ineffective strategies. PMID- 29327759 TI - Bi and trinuclear complexes in palladium carboxylate-assisted C-H activation reactions. AB - The role of polynuclear species in C-H activations assisted by palladium carboxylates has not been clear so far. The summary of the key findings covering this issue shows its important role under certain conditions. However, much more effort is necessary for a deeper understanding of the whole issue. PMID- 29327760 TI - Composition, thickness and properties of grafted copolymer brush coatings determined by ellipsometry: calculation and prediction. AB - The composition, thickness and properties of poly(4-vinylpyridine-co oligo(ethylene glycol)ethyl ether methacrylate246) [P(4VP-co-OEGMA246)] copolymer grafted brush coatings attached to glass were studied in the dry and swollen states using ellipsometry. These measured data are in good agreement with predicted (estimated) changes in the amount of water, refractive index and thickness of the grafted copolymer brush coatings on swelling. For POEGMA brushes the thickness of the coatings on swelling at 20 degrees C can be more than double, in contrast to P4VP where those changes are insignificant. The presence of 4VP units in the structure of the P(4VP-co-OEGMA246) copolymer grafted brushes significantly decreases the hydration degree even for coatings with very low concentrations of 4VP units. PMID- 29327761 TI - Evaluation of clinical reasoning teaching for third year medical students. AB - INTRODUCTION: Clinical reasoning teaching is an educational method based on learning and contextualized education.The aim of this study was to determine the value of clinical reasoning teaching sessions, from the perspective of third year medical students using a self-administered questionnaire. METHOD: Two successive groups of nine students (a total of 18 students) participated in this study.They had anexternship in the cardiology department of HabibThameur hospital during amonth.An anonymous evaluation self-administered questionnaire was submitted to the two groups at the end of the traineeshipperiod. RESULTS: The average scores given by students for the items "quality of education", "workload", "atmosphere", "interest in teaching sessions"and "acquisition of new clinical knowledge" were greater than 8/10. Exposed health problem to be solved has attracted the interest and the motivation of 16 students and prompted 15 others to do further research.Fourteen students opted for clinical reasoning teaching as the preferred teaching method for optimal memorization.Thirteen students have found a real contribution ofreasoning teaching in the management of relationship with the patient.All students assumed that clinical reasoning meetings session should be more frequently usedduring the internship period. CONCLUSION: Clinical reasoning teaching session appears to be widely desired by medical students. PMID- 29327762 TI - The role of the pathologic exam in the acute exacerbations of the interstitial pneumonia. AB - Acute exacerbation of interstitial pneumonia is a new terminology with recent debated criteria. Its prognosis is bad and its management remains non consensual. This lack of consensus seems to be due to the lack of knowledge concerning the physiopathologic phenomenon. This lack of knowledge results in few efficient therapeutics. The diagnosis of acute exacerbation is challenging for clinicians and the real place of the pathologic exam remains unknown. Our aim was to assess the different situations faced by the pathologists by emphasizing their real role. PMID- 29327763 TI - Internal transfistulary drainage for intrabiliary rupture of hydatid cyst of the liver: Analysis of the indications and the results. Report of 50 cases. AB - BACKGROUND: The rupture of hydatid cyst of the liver into the biliary tracts through a large fistula is one of the most difficult complications to treat. The techniques are various and each has its own morbidity. Internal transfistulary drainage is a surgical method of treatment of hydatid cysts of the liver opening in the biliary tract. AIMS: The aim of this study was to identify the risk factors of specific postoperative complications of this surgical technique Methods: During the period's study, 823 patients with liver hydatid cyst were operated. 86 (11 %) of them were opened in the bile ducts through a large fistula. 50 patients (58 %) had internal transfistulary drainage. RESULTS: The sex ratio was 1.6. The population was young with an average age of 40.8 years. The most frequent clinical feature of the opening in the biliary tract was acute cholangitis (42 %). The most common location of hydatid cyst was at the hepatic dome. The pericyst was flexible in only 62 % of cases. Thick pericysts were made flexible in 20% of cases and partly resection of protruding dome was made in 36 % of cases. Specific morbidity rate was 16% with no mortality. The uni and multivariate analysis had identified as risk factors for specific complications: the thick pericyst (P = 0.04), a size of the residual cavity >= 9cm; non visualization of the residual cavity on the post operative cholangiography was of borderline statistical significance (P = 0.049). CONCLUSION: The internal transfistulary drainage is an easy and reliable surgical technique, its morbidity is low. It's indicated in the cases of large fistula with a thin pericyst and a diameter of the residual cavity less than 09 cm. Making thick pericyst flexible is a false security for the indication of internal transfistulary drainage and the non visualization of the residual cavity on the post operative cholangiography impose more frequent control for these patients since they are at risk of complications. PMID- 29327764 TI - Diagnosis and management of idiopathic facial palsy in children. AB - Idiopathic or Bell's palsy is an acute peripheral-nerve palsy involving the facial nerve. The disorder is quite infrequent under the age of 10 years. The proposed etiologies of Bell's palsy include ischemic neuropathy and vascular diseases. This case series presents five children with Bell's palsy. The epidemiologic, diagnostic and therapeutic measures were summarized. The evolution regarding especially the facial motricity was detailed. The results about the role of some thrombophilic polymorphisms suggest a probable involvement of factor V haplotype, MTHFR and factor XIII in the etiology of Bell's palsy in five Tunisian children. PMID- 29327765 TI - Child mortality infected with HIV1 followed in 40 pediatric care sites in Togo. AB - INTRODUCTION: The infection in pediatric HIV is the reason a lot of problems in Africa The objective of our study were to identify factors associated with mortality during follow-up of children receiving antiretroviral therapy in Togo. METHODS: It was a cross-sectional study of 870 children aged files from 7 weeks to 15 years infected with HIV on antiretroviral treatment, covering the period 1 January 2001 to 31 December 2010 taking in 40 sites medical management in Togo. Data processing was done with the software Epi-Info 6.04d and duplicates were treated by the Software ESOPE. RESULTS: All patients were infected with HIV-1. In total forty six (46) deaths is 5.29% of the overall cohort were reported in our series. The lethality of the overall cohort followed for 60 months was 5.29%. The survival rate of the overall effective monitoring in our study was 89.2%. Fifty eight percent (58%) of deaths had affected children in a state of severe malnutrition and forty two percent (42%) in a state of moderate malnutrition. Sixty two percent (62%) of children under HAART treatment died benefited monitoring a psychologist. CONCLUSION: The diagnostic inadequacies of pediatric HIV strike the prognosis of infected children. Efforts still needs to be done to improve the load take pediatric HIV in Togo. PMID- 29327766 TI - Contribution of ultrasound in the study of ovarian fibrothecomas: a series of 47 cases. AB - INTRODUCTION: Ovarian fibro-thecoma are rare presenting 1 to 4, 7%of ovarian organictumors. These tumors are of stromal origin and contain varied proportion of fusiform connective tissue cells and theca cells. They mainly affect menopausal or perimenopausal women. This tumor is benign in most cases and may be responsible for hormone secretion. OBJECTIVES: Study the epidemiological and clinical data of patients with ovarian fibro-thecoma, analyze ultrasonographic characteristics of these tumors,and evaluate the sensitivity and specificity of pelvic ultrasound in ovarian fibro-thecoma approach. METHODS: A retrospective study of 47 patients who underwent surgical treatment for ovarian fibro-thecoma was performed. Data were collected in our department of gynecologyand obstetrics A within Charles Nicole hospital in Tunis, over a period of 18 years between January 1994 and December 2012. For each of our observations, we analyzed the clinical and para-clinical data, including U.S. characteristics and available MRI data with confrontation to the final histological results. RESULTS: The average age of patients was 45.2 years. The average gravidity was 4 and the mean parity was 3. . Thirty-eight of our patients were postmenopausal (80.85%). Ovarian tumor was discovered incidentally in 11 cases and on the occasion of functional symptoms in 36 cases including pelvic pain in 18 cases. Physical examination revealed a pelvic mass in 17 patients and pelvic-abdominal in 14 patients. All patients underwent a pelvic ultrasound. . Ultrasound identified 49 tumors (2 cases of bilateral tumors). Average size of tumors was 10, 05 cm (4 to 30 cm). ) . Ovarian tumor was echogenic in 9 cases (18.36%), hypoechoic in 14 cases (28.47%), mixed in 14 cases (28.47%) and anechoic in 12 cases (24.49%). The tumor was found to be solid in 27 cases (55.1%); cystic in 8 cases (16.3%) and solido cystic in 14 cases (28.6%).It was compartmentalized in 10 cases. Extra cystic vegetations were found in 2 patients. The tumor was nonvascularized at color Doppler in 47 cases (95.9%) and slightly vascularized in 2 cases (4.1%). Intra peritoneal effusion was objectified in 15 cases. The diagnosis of ovarian fibro thecoma was raised based on U.S in 25 cases (51.02%) before surgery .MRI was performed in four cases. All patients underwent surgery. We performed laparotomy in 36 cases and laparoscopy in 11 cases. By laparotomy were performed a total hysterectomy with bilateral oophorectomy in most cases (26 patients). By laparoscopy we did lumpectomy in all cases. . The final pathologic examination revealed 19 fibromas, 14cystadenofibromas and 14 fibrothecomas. CONCLUSION: The paraclinical exploration of ovarian fibro-thecoma isbased, as all ovarian tumors, on ultrasound examination. The most typical features are images of solid tumors with regular contours, echogenic or mixed with the presence of streakedshadows. PMID- 29327767 TI - Triple negative breast cancer: A clinico-epidemiological and histopronostic study of 90 cases. AB - PURPOSE: The aim of this study was to describe the clinico-epidemiological and histopronostic characteristics of triple negative breast cancer (TNBC) and to evaluate the therapeutic results in tunisian women. METHODS: We reported the results of a retrospective study including 90 patients treated for TNBC between Junuary 2008 and December 2009 in the Salah Azaiz Institute of Tunis. RESULTS: TNBCoccured in 14% of diagnosed breast cancers. The mean age at diagnosis was 53.67 years. Family history of breast cancer was reported in 10% of cases.The majority of tumors were classified as T2 (41%) and associated with invasive ductal carcinoma histological type (99%) and SBR grade-II (54%). Tumor lymph node metastases were detected in 44% of patients.Among operated patients, 46% of patients underwent conservative surgery and 54% radical surgery. Chemotherapy and postoperative radiotherapy were given in97% and 80%of patients, respectively. After a median follow-up of 33.51 months, 61% of patients remained free of disease, 12% hadloco-regional recurrence, 9% had disease progression during chemotherapy and 21% developed systemic disease. CONCLUSION: TNBC diagnosis is often made in the advanced stage and has a tendency to recur after treatment. The variable responseto chemotherapy is due to the molecular tumor heterogeneity. The development of targeted therapies is necessary to improve outcome of chemoresistant TNBC. PMID- 29327768 TI - Anaphylaxis in an emergency department: Epidemiology, clinical features and management. AB - INTRODUCTION: Studies report that anaphylaxis was under-diagnosed in emergency department (ED) and emergency management was often in disagreement with international recommendations. AIM OF THE STUDY: The aim of this study was to describe the epidemiology, clinical features, management and outcome of patients with anaphylaxis presenting to an ED. METHODS: Prospective, observational study over four years (June 2010 to May 2014). INCLUSION CRITERIA: patients (> 14 years of age) presenting consecutively to the ED with the diagnosis of anaphylaxis. Collection of epidemiological, clinical and therapeutic parameters Results: During the study, 239 patients were enrolled. Mean age = 40+/-15 years. Sex ratio=0.8. History of anaphylaxis was reported in 40% of cases. Clinical features n (%): cutaneous features 229 (96), cardiovascular features 124 (52), respiratory features 127 (53), gastrointestinal features 48 (20) and neurologic features 4 (10). Most common allergens: drugs 62%, food 24% and insects 4%. No causes were apparent in 8% of cases. An anaphylactic shock was recorded in 73 patients (31%). Adrenaline was used in 83%of patients, intravenously in 31%. Corticosteroids and histamine H1 antagonist were prescribed in 98 and 51% respectively. Biphasic reactions were reported in three patients. There was no death cases registered. CONCLUSION: Our results showed that the prevalence of anaphylaxis was low.This demonstrates that anaphylaxis is a situation which remains underestimated. It is therefore imperative to conduct prospective multicenter studies in emergency services for better determination of its impact and its risk factors. PMID- 29327769 TI - Drug-adverse related events in emergency department : Epidemiological,clinical profile and prognosis. AB - INTRODUCTION: Adverse-drug events (ADe) are frequent in emergency medicine and remain misdiagnosed depending on the clinical polymorphism and the underlying comorbidities. Older patients with multiple comorbidities and polypharmacy are more frequently affected and makes poor prognosis. AIM OF THE STUDY: The aim of this study was to evaluate the epidemiology of ADe in the emergency department (ED) visits and to identify the prognostic value mortality within 30 days. METHODS: Prospective, monocentric study. Patients were included if they met criteria of aADe. We evaluated severity and mortality at 30 days. Moreover, misuse and preventabilty were studied. RESULTS: We included 159 cases within 113,272 ED visits. Mean age = 64 +/- 19 years, sex ratio =0.6.The average number of drugs was 4.5 +/- 3. Polymedication was found in 54%. In 10 cases, the prescription contained twice the same molecule. A double ADe was found in 11 patients. We identified 55 cases of misuse, 94% of them were due to physician. An interaction was found in 23 patients. Improper prescription with age, renal function or presence of contra-indications was found in 46 patients. In 41% cases, ADR events were preventable. An ADR event was considered severe in 44% of cases and 30-Days mortality's rate was 9.4%. Drugs n (%): Anticoagulants 53(34,6); Antihypertensive 29(19); Antiarrhythmic 15(10). Multivariate analysis of mortality at day 30: Misuse and polyapthology were independent predictors; Respective Odds ratios: (OR: 2.6; 95% CI [1.25-5.38]; p=0,001) and (OR 2.31; 95% CI [1,16 - 4,61]; p=0,017). CONCLUSION: Drug-related ED visits are common in elderly. ADe is severe in 44% cases and preventable in 41%. Mortality rate was 9,4%. Misuse, polypharmacy and comorbidities were independent predictors of severity and mortality. PMID- 29327770 TI - The head to foot screw fixation. A new technique of percutaneous screw fixation of the scaphoid bone. AB - OBJECTIVES: Many techniques have been described for screw fixation of the scaphoid bone. The approach is either proximal or dorsal. A new percutaneous technique is presented by the authors called the head to foot screw fixation. Indications and results are evaluated. METHODS: It is a percutaneous technique with fixation of the scaphoid bone by two screws introduced in an opposite direction: a proximal screw and a distal screw. No postoperative immobilization was necessary. A prospective study was conducted in 40 patients over a period of three years. The average age was 25 years with extremes of 14 and 44 years. This technique was practiced in fractures (30 cases) and nonunion (10 cases) in which the localization was proximal, corresponding to Schernberg types I, II and III. Forms associated with perilunate dislocation of the carpus were excluded from the study. RESULTS: The results were analysed with a mean of 8 months (6-30). Union was obtained in all the cases. No tendon injury related to percutaneous approach was noted. The technique required a learning curve with progressive decrease in operative time from 45 to 15 minutes. It was necessary in two cases to change protruding screws which were not diagnosed during the first intervention. Percutaneous screw fixation was achieved again in both cases. Conclusions: The combination in our experience of two screws allowed us to prevent rotation around the unthreated area of a single screw. Our technique, bringing together the head to the foot of the screw, reduces the crowding at the proximal part of the scaphoid bone. This non-invasive method permitted early mobilization with no pain until biological union. PMID- 29327771 TI - Inherited ADMATS13 deficiency: When to evoke the in the newborn? AB - Inherited ADMATS13 or Upshaw-Schulman syndrome (USS) is caused by the deficiency of the Von Willebrand factor-cleaving protease. It is characterized by recurrent episodes of thrombocytopenia reversible by fresh frozen plasma (FFP) infusions, microangiopathic hemolytic anemia, and microvascular thrombosis leading to ischemic damage of multiple organs with end stage renal failure, or neurological sequelae in the absence of appropriate treatment. The typically reported features of USS in neonates are severe jaundice with hyperbilirubinemia, thrombocytopenia and /or combs negative hemolytic anemia, and an increased creatinine.We presented a clinical case of USS with unusual features, which delayed the diagnosis.USS was declared at sixth hours of life with diffuse hemorrhage related to an early neonatal infection. Analysis of the plasma, at the age of 20 months, revealed low ADAMTS13 activity in the patient (<1%).Inherited ADMATS13 deficiency manifestations may overlap with other conditions, which may delay diagnosis and lead to visceral and neurological damage. The diagnosis should be, early considered in some clinical conditions: discrepancy between the severity of a hemorrhagic syndrome and thrombocytopenia, recurrence, resistance to symptomatic treatment. The diagnosis can be suggested by the normalization of platelet count after FFP transfusions. PMID- 29327772 TI - Chilaiditi's sign (or syndrome). PMID- 29327773 TI - Erosive erythema multiforme of the oral mucosa with acantholysis et circulating autoantibodies. PMID- 29327774 TI - Lung herniation : a case report of a spontaneous cervical hernia. PMID- 29327776 TI - A rare cause of dyspnea in adulthood: Bochdalek hernia. PMID- 29327775 TI - Renal carcinoma associated to acquired cystic renal disease. PMID- 29327777 TI - The Use of Acellular Dermal Matrices (ADM) in Breast Reconstruction: A Review. AB - The use of acellular dermal matrices (ADM), sometimes referred to as extracellular matrix (ECM), has become an interesting aspect of breast reconstruction. A great deal of literature is available, totaling over 7000 ADM based reconstructions. Most often, ADMs are used in a skin sparing mastectomy (SSM) scenario, although heterologous breast augmentation with a sub-pectoral fixation may also require an ADM application. Their use has become an attractive, but expensive option. Available data shows head to head comparisons between individual ADMs to be mostly retrospective in nature with only a few prospective trials available. Points of interest include postoperative hematoma, postoperative skin irritation, infection, red breast syndrome, and revision surgery. This work will, therefore, highlight the individual properties of ADMs used in breast reconstruction and compare the available data on complication rates and costs for these devices. PMID- 29327778 TI - Impact of Physical Activity and Body Mass Index in Cardiovascular and Musculoskeletal Health: A Review. AB - Due to an increasing elderly population coupled with a growing obesity epidemic, there has been an increased prevalence in cardiovascular and musculoskeletal diseases. This has led to an increased burden in healthcare expenditures, now estimated to be over 17.8% of gross domestic product. As a result, physical activity has been increasingly encouraged due to its potential prophylactic effects on health. Recent reports have demonstrated a relationship between physical activity and body mass index (BMI) on cardiovascular and musculoskeletal health. However, the effect of the combination of the two have not been reported. Therefore, the purpose of this review was to assess the effect of various levels of physical activity on: 1) cardiovascular disease risk; and 2) the development of musculoskeletal disease (osteoarthritis [OA]) when accounting for various levels of BMIs. A total of 143 abstracts were identified for cardiovascular health and 55 abstracts for musculoskeletal health. Upon review, 11 reports were included for final evaluation. Despite patient BMI, physical activity was associated with a decreased risk of cardiovascular events. Additionally, moderate levels of physical activity were demonstrated to be protective against the development of OA; however, the levels of physical activity necessary to be beneficial were not fully elucidated. This suggests that the prophylactic effects of physical activity were maintained despite patient BMI. Future studies are needed to explore the appropriate levels of physical activity for optimal effectiveness when stratifying by patient BMI. PMID- 29327779 TI - Locally delivered ethyl-2,5-dihydroxybenzoate using 3D printed bone implant for promotion of bone regeneration in a osteoporotic animal model. AB - Osteoporosis is a disease characterized by low bone mass, most commonly caused by an increase in bone resorption that is not matched by sufficient bone formation. The most common complications of postmenopausal osteoporosis are bone-related defects and fractures. Fracture healing is a multifactorial bone regeneration process, influenced by both biological and mechanical factors related to age, osteoporosis and stability of the osteosynthesis. During the treatment of bone defects in osteoporotic conditions, imbalanced bone remodeling is the leading cause for implant failure. To overcome these problems, ethyl-2,5 dihydroxybenzoate (E-2,5-DHB), a drug that promotes bone formation and inhibits bone resorption, was used. E-2,5-DHB-incorporating titanium (Ti) implants using poly(lactic-co-glycolic acid) (PLGA) coating for local delivery of E-2,5-DHB were developed and the effects on bone healing of femoral defects were evaluated in an osteoporotic model. The release of E-2,5-DHB resulted in decreased bone resorption and increased bone formation around the implant. Thus, it was confirmed that, in the osteoporotic model, bone healing was increased and implant fixation was enhanced. These results suggested that E-2,5-DHB-coated Ti implants have great potential as an ultimate local drug delivery system for bone tissue scaffolds. PMID- 29327780 TI - Systematic review with meta-analysis: effectiveness and tolerability of interferon-free direct-acting antiviral regimens for chronic hepatitis C genotype 1 in routine clinical practice in Asia. AB - BACKGROUND: Direct-acting antiviral (DAA) regimens have shown high efficacy and tolerability for patients with HCV genotype 1/1b (GT1/1b) in clinical trials. However, robust real-world evidence of interferon (IFN)-free DAA treatment for HCV GT1-infected patients in Asia is still lacking. AIM: To systematically review and meta-analyse the effectiveness and tolerability of IFN-free DAA therapy for HCV GT1 infection in Asia. METHODS: We included studies that enrolled adult patients with HCV GT1 infection in routine clinical practice in Asia, using IFN free DAA regimens, and reported sustained virological response (SVR) after 12/24 weeks end-of-treatment by 31 May 2017. The pooled SVR rates were computed with a random-effects model. Subgroup analysis and meta-regression as previously registered in PROSPERO were performed to determine how pre-planned variables might have affected the pooled estimates. RESULTS: We included 41 studies from eight countries and regions, comprising of 8574 individuals. The pooled SVR rates for GT1 were 89.9% (95% CI 88.6-91.1, I2 = 55.1%) with daclatasvir/asunaprevir (DCV/ASV) and 98.1% (95% CI 97.0-99.0, I2 = 41.0%) with ledipasvir/sofosbuvir +/ ribavirin (LDV/SOF +/- RBV). Baseline cirrhosis but not prior treatment history and age, attenuated the effectiveness of both regimens. Baseline resistance associated substitutions (RASs) severely attenuated SVR of DCV/ASV (65.4% vs 94.3%, P < 0.001) and only minimally with LDV/SOF +/- RBV (94.5% vs 99.2%, P = 0.003). Patients with renal dysfunction treated with DCV/ASV showed a higher SVR rate (93.9% vs 89.8%, P = 0.046). Patients with hepatocellular carcinoma (HCC) LDV/SOF +/- RBV achieved a lower SVR than those without HCC (94.1% vs 98.7%, P = 0.001). CONCLUSION: All oral DAA treatment of HCV GT1 resulted in high cure rates in Asian patients in routine clinical practice setting including elderly patients and those with end-stage renal disease. PMID- 29327781 TI - Treatment with proton pump inhibitors is associated with increased mortality in patients with pyogenic liver abscess. AB - BACKGROUND: Proton pump inhibitors (PPI) are often used in patients with gastro esophageal reflux and peptic ulcer disease. A higher risk for infectious diseases and for pyogenic liver abscess has been reported in patients with prolonged PPI intake. Although many patients have ongoing PPI treatment after diagnosis of liver abscess, there are no data available that focus on the prognostic impact of PPI treatment in these patients. AIM: To analyse the effect of PPI treatment on mortality in patients with pyogenic liver abscesses. METHODS: Between January 2005 and March 2017, one hundred and eighty-one patients with pyogenic liver abscess were retrospectively included in this analysis. Medical records including PPI treatment, microbiological and imaging data were reviewed. The primary endpoint was index mortality and predictive factors were analysed using uni- and multivariate logistic regression models. RESULTS: One hundred patients with pyogenic liver abscess (55.2%) were treated with PPI compared to 81 patients (44.8%) without PPI treatment. In both patient cohorts, enterococcus spp. and streptococcus of the anginous group were the most common pathogens identified. Patients with PPI treatment had significantly higher index mortality compared to patients without PPI treatment (30.0% vs 11.1%, P = 0.003). After adjusting for comorbidities PPI remained an independent predictive factor with an OR of 2.56 (1.01-6.46, P = 0.036). CONCLUSIONS: PPI treatment is associated with higher index mortality in patients with pyogenic liver abscess. Therefore, critical evaluation of the indication for PPI treatment is particularly important in patients at high risk for pyogenic liver abscess. PMID- 29327783 TI - Nonsurgical management of human immunodeficiency virus-associated parotid cysts: A systematic review and meta-analysis. AB - BACKGROUND: The purpose of this clinical review was to analyze the effectiveness of nonsurgical management options for human immunodeficiency virus (HIV) associated parotid cysts. METHODS: We conducted systematic and meta-analysis reviews. Primary outcomes were complete or partial responses. RESULTS: Systematic review identified 12 relevant studies. The average rates of complete response for antiretroviral therapy (ART), sclerotherapy, and fine-needle aspiration (FNA) were 52.8%, 55.5%, and 33.3%, respectively. Three radiotherapy studies, totaling 104 patients, were included in a meta-analysis. Patients receiving high-dose therapy achieved complete and partial response rates of 65.8% (95% confidence interval [CI] 54.3%-76.2%) and 25.2% (95% CI 16.1%-36.3%), respectively. Patients receiving low-dose therapy achieved complete and partial response rates of 23.2% (95% CI 1.2%-60.9%) and 22.3% (95% CI 5.2%-87.8%), respectively. The rate of complete response was significantly greater for high-dose radiotherapy compared to low-dose (P < .001). CONCLUSION: Among nonsurgical treatment modalities for HIV-associated parotid cysts, radiotherapy has the highest number of reported outcomes in the literature and our analysis suggests that higher dose radiotherapy has higher rates of achieving complete response. PMID- 29327784 TI - Transoral robotic surgery for oropharyngeal carcinoma: Surgical margins and oncologic outcomes. AB - BACKGROUND: This study presents oncologic outcomes after transoral robotic surgery (TORS) +/- adjuvant therapy for oropharyngeal squamous cell carcinoma (SCC). METHODS: Three hundred fourteen patients undergoing TORS +/- adjuvant therapy for oropharyngeal SCC from May 1, 2007, to May 31, 2015, are analyzed. RESULTS: Median follow-up was 3.3 years (interquartile range [IQR] 1.8-5.3 years; range 1 day to 9.3 years). Estimated locoregional recurrence-free survival, distant metastasis-free survival (DMFS), overall survival (OS), and cancer specific survival (CSS) rates (95% confidence interval [CI] number still at risk) at 5 years after surgery were 92% (88-95; 92), 90% (86-94; 92), 86% (82-92; 98), and 94% (91-97; 98), respectively. Negative margins were achieved in 98% of cases. The adult comorbidity evaluation (ACE)-27 comorbidity index, human papillomavirus (HPV) status, pathologic N classification, and number of attempts to clear margins were associated with death due to cancer (P = .003, P = .002, P = .030, and P = .002, respectively). CONCLUSION: The need to take >=2 margins to achieve resection portends an increased risk of locoregional recurrence and death due to disease in oropharyngeal SCC. PMID- 29327782 TI - Development of manganese-enhanced magnetic resonance imaging of the rostral ventrolateral medulla of conscious rats: Importance of normalization and comparison with other regions of interest. AB - Spinally projecting neurons in the rostral ventrolateral medulla (RVLM) are believed to contribute to pathophysiological alterations in sympathetic nerve activity and the development of cardiovascular disease. The ability to identify changes in the activity of RVLM neurons in conscious animals and humans, especially longitudinally, would represent a clinically important advancement in our understanding of the contribution of the RVLM to cardiovascular disease. To this end, we describe the initial development of manganese-enhanced magnetic resonance imaging (MEMRI) for the rat RVLM. Manganese (Mn2+ ) has been used to estimate in vivo neuronal activity in other brain regions because of both its paramagnetic properties and its entry into and accumulation in active neurons. In this initial study, our three goals were as follows: (1) to validate that Mn2+ enhancement occurs in functionally and anatomically localized images of the rat RVLM; (2) to quantify the dose and time course dependence of Mn2+ enhancement in the RVLM after one systemic injection in conscious rats (66 or 33 mg/kg, intraperitoneally); and (3) to compare Mn2+ enhancement in the RVLM with other regions to determine an appropriate method of normalization of T1 -weighted images. In our proof-of-concept and proof-of-principle studies, Mn2+ was identified by MRI in the rat RVLM after direct microinjection or via retrograde transport following spinal cord injections, respectively. Systemic injections in conscious rats produced significant Mn2+ enhancement at 24 h (p < 0.05). Injections of 66 mg/kg produced greater enhancement than 33 mg/kg in the RVLM and paraventricular nucleus of the hypothalamus (p < 0.05 for both), but only when normalized to baseline scans without Mn2+ injection. Consistent with findings from our previous functional and anatomical studies demonstrating subregional neuroplasticity, Mn2+ enhancement was higher in the rostral regions of the RVLM (p < 0.05). Together with important technical considerations, our studies support the development of MEMRI as a potential method to examine RVLM activity over time in conscious animal subjects. PMID- 29327785 TI - The effect of partially exposed connective tissue graft on root-coverage outcomes: a systematic review and meta-analysis. AB - The aim of this systematic review was to compare the root-coverage outcomes of using a partially exposed connective tissue graft (CTG) technique with a fully covered CTG technique for root coverage. An electronic search up to February 28th , 2017, was performed to identify human clinical studies with data comparing outcomes of root coverage using CTG, with and without a partially exposed graft. Five clinical studies were selected for inclusion in this review. For each study, the gain of keratinized gingiva, reduction of recession depth, number of surgical sites achieving complete root coverage, percentage of root coverage, gain of tissue thickness, and changes of probing depth and clinical attachment level were recorded. Meta-analysis for the comparison of complete root coverage between the two techniques presented no statistically significant differences. A statistically significant gain of keratinized tissue in favor of the sites with an exposed CTG and a tendency of greater reduction in recession depth were seen at the sites with a fully covered CTG. Based on the results, the use of a partially exposed CTG in root-coverage procedures could achieve greater gain in keratinized gingiva, while a fully covered CTG might be indicated for procedures aiming to reduce recession depth. PMID- 29327786 TI - Differential effects of experimental hyperthyroidism on declined immunity of broiler chicken. AB - Thyroid hormones (THs) are involved in the development of lymphoid organs and regulation of immune function in birds. However, their role as an immune modulator in the hyperthyroid state is still debatable. To explore the interrelationship of thyroxine (T4 ) and the immune system, chicks were divided into three groups. Group I was comprised of control birds, who received the basal diet while group II and III were given diets supplemented with 5 MUg and 10 MUg thyroxine/kg feed, respectively, from 15 to 28 days of age. Cell-mediated immune response was evaluated through in vitro abdominal macrophage phagocytosis assay, macrophage nitric oxide (NO) production, heterophil-to-lymphocyte (H:L) ratio and delayed-type hypersensitivity response against phytohemagglutinin (PHA). Humoural immune response was assessed through serum IgG and IgM antibody production against sheep red blood cells (SRBCs) and antibody production against infectious bronchitis virus (IBV). Sampling was carried out at 7, 14 and 21 days of treatment. Results have shown higher levels (p < .001) of circulating T4 in both treatment groups compared to the control group. There was a lower (p < .05) macrophage engulfment percentage, an increase in H:L ratio (p < .001) in treated birds, while their NO production remained higher (p < .05) in thyroxine supplemented groups after bacterial lipopolysaccharide stimulation. The humoural immune response revealed a significant decline (p < .001) in IgG, IgM antibody production against SRBCs but IBV circulating antibodies increased with age. In conclusion, hyperthyroidism has a strong co-relation with decreased immune performance of birds. PMID- 29327787 TI - Electrophile-Directed Diastereoselective Oxonitrile Alkylations. AB - Diastereoselective alkylation of prochiral oxonitrile dianions with secondary alkyl halides efficiently installs two contiguous stereogenic centers. The confluence of nucleophilic trajectory and the electrophile chirality causes distinct steric differences that allow efficient discrimination for one of the six possible conformers. Numerous oxonitrile-derived dianions efficiently displace secondary alkyl halides propagating the electrophile chirality to efficiently install two contiguous tertiary centers. The prevalence of chiral, secondary electrophiles makes the interdigitated alkylation of chiral electrophiles a particularly attractive route because the resulting oxonitriles are readily transformed into bioactive heterocycles. PMID- 29327788 TI - Teaching concept analysis to graduate nursing students. AB - AIM: To provide guidance to educators who use the Wilson (1963) concept analysis method, as modified by Walker and Avant (2011), in their graduate nursing curriculum BACKGROUND: While graduate nursing curricula often include a concept analysis assignment, there is a paucity of literature to assist educators in guiding students through this challenging process. DESIGN: This article details one way for educators to assist graduate nursing students in learning how to undertake each step of the Wilson (1963) concept analysis method, as modified by Walker and Avant (2011). DATA SOURCE: Wilson (1963) concept analysis method, as modified by Walker and Avant (2011). RESULTS: Using examples, this article walks the reader through the Walker and Avant (2011) concept analysis process and addresses those issues commonly encountered by educators during this process. CONCLUSION: This article presented one way of walking students through a Walker and Avant (2011) concept analysis. Having clear information about the steps involved in developing a concept analysis will make it easier for educators to incorporate it into their graduate nursing curriculum and to effectively guide students on their journey through this process. PMID- 29327789 TI - Imaging macrophage distribution and density in mammary tumors and lung metastases using fluorine-19 MRI cell tracking. AB - PURPOSE: The presence of tumor-associated macrophages (TAMs) correlates with breast cancer progression and metastatic spread. Metastasis-associated macrophages (MAMs) are also recruited to distant sites, where they support metastatic growth. In this study, we demonstrate that in vivo fluorine-19 (19 F) based MRI cell tracking can evaluate the density and distribution of macrophages within murine breast cancer tumors and associated metastases. METHODS: Three murine breast cancer cell lines with different metastatic potentials (4T1, 168FARN, and 67NR) were implanted into the mammary fat pad in mice. In vivo whole body 19 F MRI was performed on tumor-bearing mice 24 hours post-intravenous injection of a perfluorocarbon (PFC) agent, which was taken up by macrophages in situ. RESULTS: TAMs were detected mainly in the periphery of primary tumors, and higher numbers of TAMs were detected in the more aggressive 4T1 tumors. Tumors had significantly greater 19 F spins/mm3 when they were smaller, suggesting more TAM infiltration in early-stage tumors. 19 F signal was observed within lung metastases in mice with 4T1 tumors, and fluorescence microscopy confirmed the presence of PFC-positive macrophages. CONCLUSION: This study shows for the first time proof of the ability to use MRI cell tracking to visualize MAMs in the lungs. The ability to detect and monitor the number of TAMs in individual tumors with 19 F MRI would allow for identification of breast tumors with heavy infiltration of TAMs and could be used as a biomarker for decisions about how to best treat these patients as well as for monitoring responses to therapy. Magn Reson Med 80:1138-1147, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29327791 TI - A Watershed Outlook for Pharmacotherapy in 2018. PMID- 29327790 TI - Iron Encapsulation in Water-in-Oil Emulsions: Effect of Ferrous Sulfate Concentration and Fat Crystal Formation on Oxidative Stability. AB - : Iron deficiency is a major global human health concern. Encapsulation of iron in functional food products may help to solve this problem. However, iron is highly reactive and may promote rapid lipid oxidation in fatty foods. In this study, the effect of ferrous sulfate (0.1 to 0.5 wt%) and rice bran stearin (0 or 30 wt%) on the physical properties, oxidative stability, and encapsulation efficiency of 20 wt% water-in-oil (W/O) emulsions stabilized with polyglycerol polyricinoleate was investigated. In the presence of rice bran stearin crystals in the continuous oil phase, W/O emulsions had smaller mean droplet diameters (d ~ 250 nm) and better physical stability than its absence (d ~ 330 nm). An increase in the ferrous sulfate concentration in the water droplets led to a decrease in the oxidative stability of the W/O emulsions. However, the presence of rice bran stearin significantly (P <= 0.05) improved their oxidative stability. Moreover, addition of rice bran stearin also significantly (P <= 0.05) improved the encapsulation efficiency and delayed ferrous sulfate release from the W/O emulsions. The impact of pH and ionic strength on the encapsulation efficiency of the W/O emulsion was also investigated. Ionic strength affected the encapsulation efficiency much more than pH. The W/O emulsions created in the present study may be useful for the encapsulation and delivery of iron and other water-soluble nutrients into food products. PRACTICAL APPLICATION: Water-in-oil (W/O) emulsions may be used to encapsulate, protect, and deliver water-soluble bioactive compounds or nutrients into food products. In this study, W/O emulsions stabilized using an oil-soluble surfactant (polyglycerol polyricinoleate, PGPR) and fat crystal network (rice bran stearin) were shown to be useful for encapsulation and delivery of iron into foods. This strategy may be a promising approach to reduce iron deficiency, a major nutritional deficiency for people with inadequate food supplies. PMID- 29327792 TI - Tetrablock Metallopolymer Electrochromes. AB - Multi-block polymers are highly desirable for their addressable functions that are both unique and complementary among the blocks. With metal-containing polymers, the goal is even more challenging insofar as the metal properties may considerably extend the materials functions to sensing, catalysis, interaction with metal nanoparticles, and electro- or photochrome switching. Ring-opening metathesis polymerization (ROMP) has become available for the formation of living polymers using highly efficient initiators such as the 3rd generation Grubbs catalyst [RuCl2 (NHC)(=CHPh)(3-Br-C5 H4 N)2 ], 1. Among the 24 possibilities to introduce 4 blocks of metallopolymers into a tetrablock metallocopolymer by ROMP using the catalyst 1, two viable pathways are disclosed. The synthesis, characterization, electrochemistry, electron-transfer chemistry, and remarkable electrochromic properties of these new nanomaterials are presented. PMID- 29327794 TI - Meaningful aspects of the term 'mood stabilizer'. PMID- 29327793 TI - Who needs an implantable cardioverter-defibrillator? Controversies and opportunities after DANISH. PMID- 29327795 TI - Bipolar II: Comments on its validity and utility. PMID- 29327796 TI - Speech characteristics in the congenital and childhood-onset forms of myotonic dystrophy type 1. AB - BACKGROUND: Myotonic dystrophy type 1 (DM1) is a slowly progressive multi systemic disease with an autosomal-dominant inheritance caused by a mutation on chromosome 19 (19q13.3). AIMS: To explore speech characteristics in a group of individuals with the congenital and childhood-onset forms of DM1 in terms of intelligibility, speech-sound production, nasality and compensatory articulation. A further aim was to analyse whether speech characteristics were correlated to subforms of DM1 and if speech outcome could be related to muscle strength. METHODS & PROCEDURES: Fifty native Swedish speakers (7-29 years old) with the congenital and childhood-onset forms of DM1 and 13 healthy controls participated in the study. The intelligibility of spontaneous speech, speech-sound production single-word and sentence repetition - including percentage consonants correct (PCC) and compensatory articulation, were evaluated by speech-language pathologists from video recordings. A nasometer and lip-force meter were used for objective evaluations of nasality and orofacial strength. OUTCOMES & RESULTS: In severe (n = 9) and mild congenital DM1 (n = 13), all participants had impaired intelligibility to some degree, while this applied to 79% of those with childhood DM1 (n = 28). PCC for bilabials were 53.9% in severe congenital DM1, 57.4% in mild congenital DM1 and 85.3% in childhood DM1; the corresponding results for dentals were 69.3%, 59.2% and 87.3%. Bilabials were most often compensated for with interdental or labiodental articulation. Dentals were substituted with interdental articulation. Velars were seldom affected. The mean nasalance score was high in the study group compared with controls and with normative data and the majority had weak lips. Maximum lip force, as well as the mean nasalance score, correlated significantly with the intelligibility score. CONCLUSIONS & IMPLICATIONS: The deviant production of bilabial consonants, interdental articulation and hypernasal speech are characteristic features of dysarthria in congenital and childhood DM1. Dysarthria is more frequent and more severe in congenital DM1 compared with childhood DM1. Most individuals with congenital DM1 and childhood-onset DM1 will need speech therapy from a young age. For some children with incomprehensible speech or severe neurodevelopmental disorders, alternative and augmentative ways of communication will be part of the treatment. PMID- 29327798 TI - Severity of symptoms in mania-clinical guidelines and study design implications. PMID- 29327797 TI - Potassium and the use of renin-angiotensin-aldosterone system inhibitors in heart failure with reduced ejection fraction: data from BIOSTAT-CHF. AB - BACKGROUND: Hyperkalaemia is a common co-morbidity in patients with heart failure with reduced ejection fraction (HFrEF). Whether it affects the use of renin angiotensin-aldosterone system inhibitors and thereby negatively impacts outcome is unknown. Therefore, we investigated the association between potassium and uptitration of angiotensin-converting enzyme inhibitors (ACEi)/angiotensin receptor blockers (ARB) and its association with outcome. METHODS AND RESULTS: Out of 2516 patients from the BIOSTAT-CHF study, potassium levels were available in 1666 patients with HFrEF. These patients were sub-optimally treated with ACEi/ARB or beta-blockers and were anticipated and encouraged to be uptitrated. Potassium levels were available at inclusion and at 9 months. Outcome was a composite of all-cause mortality and heart failure hospitalization at 2 years. Patients' mean age was 67 +/- 12 years and 77% were male. At baseline, median serum potassium was 4.3 (interquartile range 3.9-4.6) mEq/L. After 9 months, 401 (24.1%) patients were successfully uptitrated with ACEi/ARB. During this period, mean serum potassium increased by 0.16 +/- 0.66 mEq/L (P < 0.001). Baseline potassium was an independent predictor of lower ACEi/ARB dosage achieved [odds ratio 0.70; 95% confidence interval (CI) 0.51-0.98]. An increase in potassium was not associated with adverse outcomes (hazard ratio 1.15; 95% CI 0.86-1.53). No interaction on outcome was found between baseline potassium, potassium increase during uptitration, or potassium at 9 months and increased dosage of ACEi/ARB (Pinteraction > 0.5 for all). CONCLUSION: Higher potassium levels are an independent predictor of enduring lower dosages of ACEi/ARB. Higher potassium levels do not attenuate the beneficial effects of ACEi/ARB uptitration. PMID- 29327799 TI - What is needed to prepare speech pathologists to work in adult palliative care? AB - BACKGROUND: Speech pathologists have a pivotal role in palliative care, assisting patients with swallowing and communication disorders, yet very little is known about the preparedness of speech pathologists to work in this field. AIMS: To investigate the preparedness of speech pathologists for working in palliative care. The term 'palliative care' was viewed as an encompassing umbrella term incorporating the management/reduction of symptoms and improvement in a person's quality of life at any point of the disease progression. METHODS & PROCEDURES: Participants were Australian-trained speech pathologists who provided adult palliative care services. An online questionnaire was used to gather both quantitative and qualitative data from practising speech pathologists. Qualitative data were analysed and interpreted using conventional content analysis. Descriptive statistics were analysed via the Statistical Package for the Social Sciences (SPSS) for Windows Version 22. Non-parametric tests (chi square and Mann-Whitney U-test) were used for further analysis. OUTCOMES & RESULTS: The majority (70%) of participants indicated that their university training did not prepare them to practice in palliative care. Participants who received palliative care education at the tertiary level were significantly more prepared to work with palliative patients than those who had not; however, only a minority (27%) had received such training. Just over half (57%) reported having completed post-university professional development in palliative care. The speech pathologist's role in palliative care was also highlighted, with speech pathologists outlining their contribution to the assessment of patients' communication and swallowing abilities. In addition, recommendations for palliative care content to be incorporated into university curriculum were suggested. CONCLUSIONS & IMPLICATIONS: Speech pathologists can make important contributions to end-of-life care, but there is much scope for improving the availability and quality of university and post-university palliative care training opportunities so that people receiving palliative care are best supported. PMID- 29327800 TI - The need for evaluating right ventricular adaptation and ventriculo-arterial coupling: reply. PMID- 29327801 TI - Tense and plural formation in Welsh-English bilingual children with and without language impairment. AB - BACKGROUND: Grammatical morphology has been shown to be problematic for children with specific language impairment (SLI) or developmental language disorder (DLD). Most research on this topic comes from widely spoken languages, such as English. Despite Welsh being the most extensively spoken indigenous in the UK after English, and Wales being the only official bilingual country in the UK, our knowledge about the morphosyntactic areas of Welsh that may pose problems for Welsh-speaking children with SLI is limited. Currently, Welsh-speaking speech and language therapists (SLTs) are heavily reliant on the use of informally translated English assessments. This can inadvertently result in a failure to take aspects of Welsh morphosyntax into account that are critical for the assessment and treatment of Welsh-speaking children. AIMS: This is the first study to examine how Welsh-English bilingual children of early school age with typical development (bi-TD) and with SLI (bi-SLI) perform on production tasks targeting verbal and nominal morphology in Welsh. We targeted areas of Welsh morphosyntax that could potentially be vulnerable for Welsh-speaking children with or at risk of language impairment, such as tense marking and plural formation, and assessed their diagnostic potential. METHODS & PROCEDURES: Twenty eight Welsh-dominant bilingual children participated in the study: 10 bi-SLI and 18 bi-TD. They were administered three elicitation tasks targeting the production of verbal (compound and synthetic past tense) and nominal (plural) morphology in Welsh. OUTCOMES & RESULTS: The bi-SLI children performed worse than their bi-TD peers across all three tasks. They produced more uninflected verbs in the elicited-production task and were less likely to be prompted to produce the synthetic past, which is a concatenating, low-frequency form of the past tense. They also over-regularized less in the context of plural nouns, and when they did, they opted for high-frequency suffixes. CONCLUSIONS & IMPLICATIONS: By focusing on aspects of morphosyntactic development which are unique to Welsh, we have increased existing about how verbal and nominal morphology are acquired in Welsh-speaking bi-SLI and bi-TD children. The present results point towards productivity problems for Welsh-speaking bi-SLI children who are adversely influenced by low-frequency structures and fail to over-regularize in the context of verbal and nominal concatenating morphology. From a clinical perspective, targeting synthetic past-tense forms through a prompting task may be a promising assessment and intervention tool that future studies could explore further. PMID- 29327802 TI - An old debate still in the beta-phase? PMID- 29327803 TI - Myocardial oedema and congestive heart failure: one piece of the puzzle? PMID- 29327804 TI - HOME HF: an honest report of an (apparently) doable study. PMID- 29327805 TI - Benzonorcorrole NiII Complexes: Enhancement of Paratropic Ring Current and Singlet Diradical Character by Benzo-Fusion. AB - Fused benzene rings to antiaromatic compounds generally improve their stability but attenuate their antiaromaticity. The opposite case is now reported. NiII benzonorcorroles were synthesized and the effect of benzo-fusion on the antiaromaticity was elucidated. The benzo-fusion resulted in significant decrease of the HOMO-LUMO gaps and enhancement of the paratropic ring current effect. Furthermore, the introduction of the benzo groups induced singlet diradical character in the antiaromatic porphyrinoid. PMID- 29327806 TI - The determination of the carbonic anhydrases activators in vitro effect of mixed donor crown ethers. AB - Carbonic anhydrases (CAs) play an important function in various physiological and pathological processes. Therefore, many researchers work in this field in order to design and synthesize new drugs. Both inhibitors and activators of CAs, which are associated with the diagnosis and treatment of many diseases, are very important. The emergence of the use of CA activators in the treatment of Alzheimer has led many scholars to work on this issue. In this study, CA activators and inhibitors are determined. The crown ethers compounds (1, 2, 3, 6, 7, 8, and 9) were found to cause activation on enzyme activities of hCA I and II. The AC50 values on hCA I and II of the compounds are in the range of 4.6565 374.979 MUM. The 4 (IC50 ; 1.301 and 3.215 MUM for hCA I and II) and 5 (IC50 ; 73.96 and 378.5 MUM for hCA I and II) compounds were found to cause inhibition on enzyme activities of hCA I and II. PMID- 29327807 TI - Uric acid is important, but there is something that matters even more: to deliver sacubitril/valsartan to eligible heart failure patients. PMID- 29327809 TI - The Prevalence of Cannabinoid Hyperemesis Syndrome Among Regular Marijuana Smokers in an Urban Public Hospital. AB - Epidemiological data, including prevalence, for cannabinoid hyperemesis syndrome (CHS) remain largely unknown. Without these data, clinicians often describe CHS as 'rare' or 'very rare' without supporting evidence. We seek to estimate the prevalence of CHS in a population of patients presenting to a socio-economically and racially diverse urban Emergency Department of a public hospital. This study consisted of a questionnaire administered to a convenience sample of patients presenting to the ED of the oldest public hospital in the United States. Trained Research Associates (RAs) administered the questionnaire to patients between the ages of 18-49 years who reported smoking marijuana at least 20 days per month. The survey included questions related to CHS symptoms (nausea and vomiting) and Likert scale rankings on eleven symptom relief methods, including 'hot showers'. Patients were classified as experiencing a phenomenon consistent with CHS if they reported smoking marijuana at least 20 days per month and also rated 'hot showers' as five or more on the ten-point symptom relief method Likert scale for nausea and vomiting. Among 2127 patients approached for participation, 155 met inclusion criteria as smoking 20 or more days per month. Among those surveyed, 32.9% (95% CI, 25.5-40.3%) met our criteria for having experienced CHS. If this is extractable to the general population, approximately 2.75 million (2.13-3.38 million) Americans may suffer annually from a phenomenon similar to CHS. PMID- 29327808 TI - The rocky road to personalized medicine in acute myeloid leukaemia. AB - Acute myeloid leukaemia (AML) is a malignant disorder of the myeloid blood lineage characterized by impaired differentiation and increased proliferation of hematopoietic precursor cells. Recent technological advances have led to an improved understanding of AML biology but also uncovered the enormous cytogenetic and molecular heterogeneity of the disease. Despite this heterogeneity, AML is mostly managed by a 'one-size-fits-all' approach consisting of intensive, highly toxic induction and consolidation chemotherapy. These treatment protocols have remained largely unchanged for the past several decades and only lead to a cure in approximately 30-35% of cases. The advent of targeted therapies in chronic myeloid leukaemia and other malignancies has sparked hope to improve patient outcome in AML. However, the implementation of targeted agents in AML therapy has been unexpectedly cumbersome and remains a difficult task due to a variety of disease- and patient-specific factors. In this review, we describe current standard and investigational therapeutic strategies with a focus on targeted agents and highlight potential tools that might facilitate the development of targeted therapies for this fatal disease. The classes of agents described in this review include constitutively activated signalling pathway inhibitors, surface receptor targets, epigenetic modifiers, drugs targeting the interaction of the hematopoietic progenitor cell with the stroma and drugs that target the apoptotic machinery. The clinical context and outcome with these agents will be examined to gain insight about their optimal utilization. PMID- 29327810 TI - Nebulized hypertonic saline in infants hospitalized with moderately severe bronchiolitis due to RSV infection: A multicenter randomized controlled trial. AB - INTRODUCTION: The efficacy of nebulized hypertonic saline (HS) therapy for shortening hospital length of stay (LOS) or improving bronchiolitic symptoms remains controversial. Most studies enrolled small numbers of subjects and did not consider the role of respiratory syncytial virus (RSV), the most common cause of acute bronchiolitis. Our aim was to evaluate the efficacy and safety of nebulized HS therapy for acute bronchiolitis due to RSV in moderately ill hospitalized infants. MATERIALS AND METHODS: This was an open-label, multicenter, randomized controlled trial comparing a nebulized HS treatment group with a normal saline (NS) group. The subjects, 128 infants with bronchiolitis due to RSV, were admitted to five hospitals in Tokyo, Japan. Three-percent HS or NS was administered via bronchodilator four times daily post-admission. The primary outcome was LOS, defined as the time until the patients fulfilled the discharge criteria, namely, absence of fever, no need for supplemental oxygen, and adequate feeding. Survival analysis was conducted in accordance with the intention-to treat principle. RESULTS: The baseline characteristics were similar between the two groups. There was no significant overall difference in LOS between the groups (4.81 +/- 2.14 days in HS vs 4.61 +/- 2.18 days in NS; P = 0.60). Survival analysis by log-rank test also showed no significance (P = 0.62). Multivariate adjustment did not significantly alter the results. The treatment was well tolerated, with no adverse effects attributable to the use of HS. CONCLUSIONS: Nebulized HS therapy did not significantly reduce LOS among infants with bronchiolitis due to RSV. PMID- 29327811 TI - An Aza resveratrol-chalcone derivative 6b protects mice against diabetic cardiomyopathy by alleviating inflammation and oxidative stress. AB - Inflammation and oxidative stress play a crucial role in the development of diabetic cardiomyopathy (DCM). We previously had synthesized an Aza resveratrol chalcone derivative 6b, of which effectively suppressing lipopolysaccharide (LPS) induced inflammatory response in macrophages. This study aimed to investigate the potential protective effect of 6b on DCM and underlying mechanism. In H9c2 myocardial cells, 6b potently decreased high glucose (HG)-induced cell fibrosis, hypertrophy and apoptosis, alleviating inflammatory response and oxidant stress. In STZ-induced type 1 diabetic mice (STZ-DM1), orally administration with 6b for 16 weeks significantly attenuated cardiac hypertrophy, apoptosis and fibrosis. The expression of inflammatory cytokines and oxidative stress biomarkers was also suppressed by 6b distinctly, without affecting blood glucose and body weight. The anti-inflammatory and antioxidative activities of 6b were mechanistic associated with nuclear factor-kappa B (NF-kappaB) nucleus entry blockage and Nrf2 activation both in vitro and in vivo. The results indicated that 6b can be a promising cardioprotective agent in treatment of DCM via inhibiting inflammation and alleviating oxidative stress. This study also validated the important role of NF-kappaB and Nrf2 taken in the pathogenesis of DCM, which could be therapeutic targets for diabetic comorbidities. PMID- 29327812 TI - Hyper-acetylation contributes to the sensitivity of chemo-resistant prostate cancer cells to histone deacetylase inhibitor Trichostatin A. AB - Therapeutic agents are urgently needed for treating metastatic castration refractory prostate cancer (mCRPC) that is unresponsive to androgen deprivation and chemotherapy. Our screening assays demonstrated that chemotherapy-resistant prostate cancer (PCa) cells are more sensitive to HDAC inhibitors than paired sensitive PCa cells, as demonstrated by cell proliferation and apoptosis in vitro and in vivo. Kinetic study revealed that TSA-induced apoptosis was significantly dependent on enhanced transcription and protein synthesis in an early stage, which subsequently caused ER stress and apoptosis. ChIP analysis indicated that TSA increased H4K16 acetylation, promoting ER stress gene transcription. The changes in Ac-H4K16, ATF3 and ATF4 were also validated in TSA-treated animals. Further study revealed the higher enzyme activity of HDACs and an increase in acetylated proteins in resistant cells. The higher nucleocytoplasmic acetyl-CoA in resistant cells was responsible for elevated acetylation status of protein and a more vigorous growth state. These results strongly support the pre-clinical application of HDAC inhibitors for treating chemotherapy-resistant mCRPC. PMID- 29327813 TI - Computational Tools for the Identification and Interpretation of Sequence Motifs in Immunopeptidomes. AB - Recent advances in proteomics and mass-spectrometry have widely expanded the detectable peptide repertoire presented by major histocompatibility complex (MHC) molecules on the cell surface, collectively known as the immunopeptidome. Finely characterizing the immunopeptidome brings about important basic insights into the mechanisms of antigen presentation, but can also reveal promising targets for vaccine development and cancer immunotherapy. This report describes a number of practical and efficient approaches to analyze immunopeptidomics data, discussing the identification of meaningful sequence motifs in various scenarios and considering current limitations. Guidelines are provided for the filtering of false hits and contaminants, and to address the problem of motif deconvolution in cell lines expressing multiple MHC alleles, both for the MHC class I and class II systems. Finally, it is demonstrated how machine learning can be readily employed by non-expert users to generate accurate prediction models directly from mass spectrometry eluted ligand data sets. PMID- 29327814 TI - Systematic Evaluation of Protein Sequence Filtering Algorithms for Proteoform Identification Using Top-Down Mass Spectrometry. AB - Complex proteoforms contain various primary structural alterations resulting from variations in genes, RNA, and proteins. Top-down mass spectrometry is commonly used for analyzing complex proteoforms because it provides whole sequence information of the proteoforms. Proteoform identification by top-down mass spectral database search is a challenging computational problem because the types and/or locations of some alterations in target proteoforms are in general unknown. Although spectral alignment and mass graph alignment algorithms have been proposed for identifying proteoforms with unknown alterations, they are extremely slow to align millions of spectra against tens of thousands of protein sequences in high throughput proteome level analyses. Many software tools in this area combine efficient protein sequence filtering algorithms and spectral alignment algorithms to speed up database search. As a result, the performance of these tools heavily relies on the sensitivity and efficiency of their filtering algorithms. Here, we propose two efficient approximate spectrum-based filtering algorithms for proteoform identification. We evaluated the performances of the proposed algorithms and four existing ones on simulated and real top-down mass spectrometry data sets. Experiments showed that the proposed algorithms outperformed the existing ones for complex proteoform identification. In addition, combining the proposed filtering algorithms and mass graph alignment algorithms identified many proteoforms missed by ProSightPC in proteome-level proteoform analyses. PMID- 29327815 TI - No Impact of Pre-existing Cardiovascular Disease on Prescribing Patterns of Sulphonylureas in Denmark - A Registry-based Nationwide Study. AB - Uncertainty exists regarding cardiovascular (CV) safety of sulphonylureas (SUs) as reflected in package labels and treatment guidelines. This study evaluated clinical treatment practice for SUs by analysing prescription patterns for SUs relative to patient history of CV disease (CVD). Patients in Denmark initiating treatment with SU or other anti-hyperglycaemic drugs during 2006-12 were retrospectively identified using national health registries. Pre-existing (previous 12 years) overall CVD, coronary heart disease (CHD) and myocardial infarction (MI) were subsequently identified. Proportion of patients with pre existing CVD was compared between new users of SU and new users of other anti hyperglycaemic drugs. In total, 50,425 (42.2% females, mean +/- SD age 63.3 +/- 13.5 years) and 190,438 (46.5% females, age 60.3 +/- 15.0 years) patients initiated treatment with SU or other anti-hyperglycaemic drugs, respectively, during 2006-12. The number of patients initiating SU treatment decreased by 63% during 2006-12. The proportion of patients with pre-existing CVD varied between 46.9% and 49.8% among new SU users versus 39.9% and 44.8% among new users of other anti-hyperglycaemic drugs. Corresponding proportions for CHD (17.9-19.9% versus 15.4-16.9%) and MI (6.3-7.5% versus 5.8-6.2%) showed the same pattern. Excluding new gliclazide users (9.6% of all new SU users) from the SU definition did not alter the results. Despite a potentially increased CV risk associated with use of SUs, pre-existing CVD did not decrease clinicians' relative prescriptions of SUs. PMID- 29327817 TI - Ketonization of Proline Residues in the Peptide Chains of Actinomycins by a 4 Oxoproline Synthase. AB - X-type actinomycins (Acms) contain 4-hydroxyproline (Acm X0 ) or 4-oxoproline (Acm X2 ) in their beta-pentapeptide lactone rings, whereas their alpha ring contains proline. We demonstrate that these Acms are formed through asymmetric condensation of Acm half molecules (Acm halves) containing proline with 4 hydroxyproline- or 4-oxoproline-containing Acm halves. In turn, we show-using an artificial Acm half analogue (PPL 1) with proline in its peptide chain-their conversion into the 4-hydroxyproline- and 4-oxoproline-containing Acm halves, PPL 0 and PPL 2, in mycelial suspensions of Streptomyces antibioticus. Two responsible genes of the Acm X biosynthetic gene cluster of S. antibioticus, saacmM and saacmN, encoding a cytochrome P450 monooxygenase (Cyp) and a ferredoxin were identified. After coexpression in Escherichia coli, their gene products converted PPL 1 into PPL 0 and PPL 2 in vivo as well as in situ in permeabilized cell of the transformed E. coli strain in conjunction with the host encoded ferredoxin reductase in a NADH (NADPH)-dependent manner. saAcmM has high sequence similarity to the Cyp107Z (Ema) family of Cyps, which can convert avermectin B1 into its keto derivative, 4''-oxoavermectin B1. Determination of the structure of saAcmM reveals high similarity to the Ema structure but with significant differences in residues decorating their active sites, which defines saAcmM and its orthologues as a distinct new family of peptidylprolineketonizing Cyp. PMID- 29327816 TI - Brain-Cortex Microglia-Derived Exosomes: Nanoparticles for Glioma Therapy. AB - The function and integrity of the nervous system require interactive exchanges among neurons and glial cells. Exosomes and other extracellular vesicles (EVs) are emerging as a key mediator of intercellular communication, capable of transferring nucleic acids, proteins and lipids influencing numerous functional and pathological aspects of both donor and recipient cells. The immune response mediated by microglia-derived exosomes is most prominently involved in the spread of neuroinflammation, neurodegenerative disorders, and brain cancer. Therefore, in the present study we describe a reproducible and highly efficient method for yielding purified primary microglia cells, followed by exosome isolation and their characterization. An in vitro biological assay demonstrates that microglia derived exosomes tested on a 3D spheroid glioma culture were able to inhibit tumor invasion in time course. These results evidence that brain microglia derived exosomes could be used as nanotherapeutic agents against glioma cells. PMID- 29327818 TI - Cyclosporine for severe steroid-refractory ulcerative colitis: commenting the comment. PMID- 29327819 TI - Helicobacter pylori infection in Africa: 2018 literature update. AB - Helicobacter pylori (H. pylori) relationship with humans is believed to have originated in Africa and three African H. pylori populations have been identified: hpAfrica1, hpAfrica2 and hpNEAfrica. Actually, H. pylori infection is a ubiquitous infection in developing countries, particularly Africa. In this continent, the prevalence of H. pylori is higher and the bacterium is acquired at an early age compared to developed countries. In fact, while it affects over 50% of humans in developed countries its prevalence reaches 80% or more among adults in Africa. This paper reviews works in literatures, including epidemiology, virulence genes, gastric pathology and antimicrobial treatment and resistance of H. pylori in Africa. PMID- 29327820 TI - Gastroenterology today: between certainties and news. AB - This special article reports on two crucial issues discussed during a meeting. The first was the updated management of Helicobacter pylori (H. pylori) infection. This was approached taking into account the recent European Guidelines, with a focus on novelties in treatment. In particular, considering the increasing H. pylori antibiotic resistance to clarithromycin, in countries with a high clarithromycin resistance rate, the bismuth-containing quadruple therapies should be preferred. The new formulation, with bismuth, metronidazole, and tetracycline contained in a single capsule (three-in-one), has shown exciting results both in naive and in non-responder patients. Levofloxacin- and rifabutin containing triple therapies should be proposed to patients who experienced H. pylori treatment failures. Another key message on H. pylori management was that, after one or more failures, standard antimicrobial susceptibility testing should be considered before prescribing a further treatment. The second issue concerned the novelties on dysbiosis of intestinal microbiota and its clinical consequences. Among the latter, the focus was on both constipation-predominant irritable bowel syndrome (IBS-C) and microscopic colitis. Since the number of microorganisms inhabiting the gastrointestinal (GI) tract is estimated to be about 10 times higher than that of human cells, it is not surprising to foresee the clinical consequences of dysbiosis. However, to date the role of dysbiosis in IBS-C and in microscopic colitis is poorly known and major efforts are needed to understand if manipulating microbiota could improve the treatment of these and other diseases both within and outside the GI tract. At a meeting held in Turin, Italy, on May 27, 2017 two crucial issues of modern gastroenterology were discussed: the updated management of Helicobacter pylori (H. pylori) infection and the novelties regarding the dysbiosis of intestinal microbiota and its clinical consequences. Among the latter, a focus was made on both constipation predominant irritable bowel syndrome (IBS-C) and microscopic colitis. In this special article we report the most recent salient advances discussed during this meeting. PMID- 29327821 TI - Chronic kidney disease in patients with chronic hepatitis C virus infection. AB - Hepatitis C virus (HCV) infection affects many organs in the body, including the liver, kidneys, skin, joints and others. Although the hepatic manifestation of HCV has been widely studied, the extrahepatic manifestations of HCV have not been fully appreciated. Studies have shown that patients with HCV have a higher risk of chronic kidney disease and end-stage renal disease, as well as poorer outcomes after kidney transplantation. Given these findings, it is important to screen HCV patients for presence of renal impairment in a timely manner. Current guidelines recommend screening for kidney disease at the time of HCV diagnosis, along with annual urinalysis and creatinine checks. It is important to note that chronic HCV infection has been associated with a number of renal disorders, including cryoglobulinemic glomerulonephritis, membranoproliferative glomerulonephritis, membranous nephropathy, focal segmental glomerulosclerosis, IgA nephropathy, fibrillary and immunotactoid glomerulopathies, and hepatorenal syndrome. Of these, while HRS can be reversible post-transplantation, cryoglobulinemic glomerulonephritis is common and is primarily caused by mixed cryoglobulinemia. These patients may be asymptomatic or may present with hematuria, proteinuria, nephrotic syndrome, or impaired renal function only detected by laboratory data. In this review, we will provide an up-to-date assessment of these renal complications in patients with HCV infection. PMID- 29327822 TI - Efficacy and safety of long-term entecavir therapy in a European population. AB - BACKGROUND: Therapy in chronic hepatitis B (chronic hepatitis B) patients aims at improving their survival by preventing disease progression to cirrhosis and its complications. Entecavir (ETV) is currently a first line therapeutic agent recommended for the treatment of CHB. Our aim was to evaluate the long term outcome of a cohort of CHB patients treated with ETV. METHODS: Thirty-four patients treated with ETV for at least 6 months were included in this study. The virologic response was determined by the dosage of serum HBV-DNA, HBsAg, HBeAg, anti-HBs and anti-HBe antibodies. Death, acute pancreatitis, lactic acidosis and kidney function impairment were considered as major adverse events. RESULTS: The median period of treatment was 55 months (range 15-81). Thirty-three (97%) patients responded to the therapy after a mean time of 14.7 weeks (4-60); of these, 29 (85.3%) maintained the HBV-DNA negativity in serum, while 4 patients (11.8%) had a breakthrough. The remaining patient did not respond. Seroconversion to anti-HBs and anti-HBe was not observed, although 2 patients lost the e and the s antigen, respectively. Baseline alanine aminostransferase (ALT) levels in serum were altered in 18 patients (52.9%), and returned to normal levels during the follow-up, with a reduction of 87.7 IU/L (P<0.0001). A case (3.4%) of hepatocellular carcinoma was observed after 24 months. No major adverse events were recorded. CONCLUSIONS: ETV is effective in suppressing viral replication as well as in normalizing serum ALT levels, without anti-HBs seroconversion. Finally, ETV is a safe drug, substantially free of major side effects. PMID- 29327823 TI - A previous hamstring injury affects kicking mechanics in soccer players. AB - BACKGROUND: Although the kicking skill is influenced by limb dominance and sex, how a previous hamstring injury affects kicking has not been studied in detail. Thus, the objective of this study was to evaluate the effect of sex and limb dominance on kicking in limbs with and without a previous hamstring injury. METHODS: 45 professional players (males: n=19, previously injured players=4, age=21.16 +/- 2.00 years; females: n=19, previously injured players=10, age=22.15 +/- 4.50 years) performed 5 kicks each with their preferred and non-preferred limb at a target 7m away, which were recorded with a three-dimensional motion capture system. Kinematic and kinetic variables were extracted for the backswing, leg cocking, leg acceleration and follow through phases. RESULTS: A shorter backswing (20.20 +/- 3.49% vs 25.64 +/- 4.57%), and differences in knee flexion angle (58 +/- 10o vs 72 +/- 14o) and hip flexion velocity (8 +/- 0rad/s vs 10 +/- 2rad/s) were observed in previously injured, non-preferred limb kicks for females. A lower peak hip linear velocity (3.50 +/- 0.84m/s vs 4.10 +/- 0.45m/s) was observed in previously injured, preferred limb kicks of females. These differences occurred in the backswing and leg-cocking phases where the hamstring muscles were the most active. A variation in the functioning of the hamstring muscles and that of the gluteus maximus and iliopsoas in the case of a previous injury could account for the differences observed in the kicking pattern. CONCLUSIONS: Therefore, the effects of a previous hamstring injury must be considered while designing rehabilitation programs to re-educate kicking movement. PMID- 29327824 TI - Are there bilateral isokinetic shoulder rotator differences in basketball male players? AB - BACKGROUND: The internal (IR) and external (ER) rotator shoulder strength are often assess in the upper limb sports to prevent a risk of injuries. The purpose of this comparative study was to measure the agonist/antagonist balance of shoulder strength and to determine whether significant differences exist between the dominant and nondominant sides in basketball players compared to a control groups. METHODS: During the championship, 23 elite male-basketball players (BB) and 23 healthy males (CG) were tested bilaterally on a Cybex Norm isokinetic dynamometer in a seated position with 45 degrees shoulder abduction in the scapular plane at 60 degrees .s-1 and 180 degrees .s-1 in concentric (CON) and 60 degrees .s-1 in eccentric (ECC) modes. RESULTS: No significant differences were found for normalized values to body weight (N.m/kg-1) between the both groups and ER/IR, ECC/CON and functional deceleration ratios were similar. BB have a bilateral difference with higher ER of the dominant side comparatively to the opposite (P<0.05). CONCLUSIONS: Unlike other sports that increase the performance of IR dominant side, the basketball player isokinetic profile could indicate a strengthening in the external rotators of the dominant side. This bilateral difference could be explained by the repetition of the specific movements in the ball control but this was not large enough for the ER/IR ratios to be significantly different with CG. The ratios analysis does not report an imbalance associated with a high risk of shoulder injuries. PMID- 29327825 TI - The sagittal spinal alignment in young swimmers and glide performance: the importance of lumbar lordosis. PMID- 29327826 TI - Correlation between hypermobility score and injury rate in artistic gymnastics. AB - BACKGROUND: Generalized Joint Hypermobility (GJH) is suggested as a contributing factor for injuries in young athletes and adults. It is presumed that GJH causes decreased joint stability, thereby increasing the risk of joint and soft tissue injuries during sports activities. The aim of this study was to determine the correlation between the hypermobility rate (using the Beighton's modification of the Carter-Wilkinson criteria of hypermobility) in gymnasts and injury rate, during the period of one year. METHODS: This study observed 24 artistic gymnasts (11-26 years old), members of Qatar National Team in artistic gymnastics. We examined the Beighton joint hypermobility screen and a seasonal injury survey. The gymnasts characteristics (age, gender) and gymnastics characteristics (training per day and number of years in training artistic gymnastics) and its' relations to injury rate were also included. RESULTS: The most common injury was the lower back pain injury, followed by knee, shoulder, hip and ankle injuries. We found strong correlation of number of years gymnastics training and injury rate (p<0.001). There is no significant correlation in the numbers of hours training during one week and hypermobility score to numbers of injuries (p>0.05). CONCLUSIONS: According to this study there is no correlation between GJH rate and injury rate in artistic gymnasts in Qatar. Total training period in gymnastics have greater contribution in injury rate. PMID- 29327827 TI - Differences in 100-m sprint performance and skeletal muscle mass between elite male and female sprinters. AB - BACKGROUND: The sex difference in 100-m sprint performance between the world's best athletes is approximately 10%. We hypothesized that skeletal muscle mass (SM) relative to body mass may be a major factor contributing to this difference. The aim of this study was to examine the sex difference in absolute and relative SM and sprint performance in male and female sprinters. METHODS: We analyzed the SM of male (n=37) and female (n=26) 100-m sprinters; the sample was divided into two subgroups within each sex according to personal best 100-m time: 10.00- 10.90 s (M10; n=22) and 11.00-11.70 s (M11; n=15) for males and 11.00-11.90 s (F11, n=14) and 12.00-13.50 s (F12, n=12) for females. SM was estimated from ultrasound measured muscle thickness (MT) using prediction equations. RESULTS: There was an approximate 10% difference in 100-m sprint time between sexes, whereas absolute and relative values of SM for female sprinters were 70-71% and 79-84% of the male sprinters, respectively. No differences were observed within each male/female subgroup for fat-free mass, absolute and relative SM, excepting that leg SM index of M10 was higher than M11. The 100-m time was not different (0.27 s, p=0.051) between M11 and F11 subgroups, but absolute and relative values of SM and MT were higher and percent body fat was lower in the M11 than in the F11 subgroup. CONCLUSIONS: Our results suggest that differences in muscle mass may not play a large role in determining successful performance in elite male and female sprinters. PMID- 29327828 TI - The acute effects of stretching with vibration on dynamic flexibility in young female gymnasts. AB - BACKGROUND: While stretching with vibration has been shown to improve static flexibility; the effect of stretching with vibration on dynamic flexibility is not well known. The purpose of this study was to examine the effectiveness of stretching with vibration on acute dynamic flexibility and jump height in novice and advanced competitive female gymnasts during a split jump. METHODS: Female gymnast (n=27, age: 11.5 +/- 1.7 years, Junior Olympic levels 5-10) participated in this cross-over study. Dynamic flexibility during gymnastic split jumps were video recorded and analyzed with Dartfish software. All participants completed both randomized stretching protocols with either the vibration platform turned on (VIB) (frequency of 30 Hz and 2 mm amplitude) or off (NoVIB) separated by 48 h. Participants performed 4 sets of three stretches on the vibration platform. Each stretch was held for 30 s with 5 s rest for a total of 7 min of stretch. RESULTS: Split jump flexibility decreased significantly from pre to post measurement in both VIB (-5.8 degrees +/-5.9 degrees ) (p<0.001) and NoVIB (-2.6 degrees +/-6.1 degrees ) (p=0.041) conditions (adjusted for gymnast level). This effect was greatest in lower skill level gymnasts (p=0.003), while the highest skill level gymnasts showed no significant decrease in the split jump (p=0.105). Jump height was not significantly different between conditions (p=0.892) or within groups (p=0.880). CONCLUSIONS: An acute session of static stretching with or without vibration immediately before performance does not alter jump height. Stretching with vibration immediately prior to gymnastics competition decreases split jump flexibility in lower level gymnasts more than upper level gymnasts. PMID- 29327862 TI - Endoscopic fenestration of a posterior fossa arachnoid cyst to treat a Chiari like headache. PMID- 29327861 TI - Prognostic factors in intrauterine insemination cycles. AB - OBJECTIVE: This study aimed to evaluate the clinical pregnancy rate of intrauterine insemination cycles in relation to patient age, cause of infertility, ovulation induction method, number of mature follicles and sperm with progressive motility. METHODS: This retrospective observational study included 237 intrauterine insemination cycles performed from 2011 to 2015 at the Assisted Reproduction Service of the Hospital das Clinicas of the Ribeirao Preto Medical School, University of Sao Paulo. Student's t-test was used to compare quantitative variables and the chi-square test was used to compare qualitative variables. RESULTS: Patient age was inversely and significantly correlated with pregnancy rates (p=0.001) (Pregnant women = 32.56+/-5.64 years, non-pregnant women = 36.64+/-5.03 years). Cause of infertility, ovulation induction method, number of mature follicles and sperm with progressive motility were not associated with pregnancy rates. The overall clinical pregnancy rate was 7.59%. In the subgroup of patients (n=102 cycles) considered ideal for intrauterine insemination (age <=35 years, unexplained infertility, ovarian factor infertility or minimal endometriosis, and a partner with sperm count >=2.5 * 106 retrieved on the day of insemination) the pregnancy rate was 12.74%. CONCLUSION: In the studied group, female patient age was the only variable significantly correlated with intrauterine insemination success rates. PMID- 29327863 TI - Endoscopic endonasal transpterygoid approach to petrous pathologies: technique, limitations and alternative approaches. AB - The endoscopic endonasal transpterygoid approach is a versatile technique, providing direct access to the petrous apex through an anterior surgical corridor. In this review we detail the transpterygoid approach to the petrous apex and highlight its relative indications. Although this approach is a useful strategy for many lesions of the petrous apex, disease extension into lateral, superior, or posterior compartments may limit extent of resection afforded by an anterior approach alone. Based on these considerations, a disease compartment specific strategy is discussed. The limitations of the transpterygoid approach and indications for lateral and postero-lateral approaches to petrous pathology are reviewed. PMID- 29327864 TI - Limits of endoscopic endonasal approach for cranio-vertebral junction tumors. AB - BACKGROUND: The endoscopic endonasal approach has been recently proposed for cranio-vertebral junction lesions. The more common indication for this sagittal extension of the endonasal route is represented by odontoidectomy for irreducible ventral brainstem compression due to congenital or degenerative conditions. However, in an increasing number of studies its adoption for tumors involving the cranio-cervical junction has been reported. The aim of this study is to consider retrospectively our surgical series, focusing on the advantages and limits of this approach. METHODS: Each consecutive case of tumor involving the cranio vertebral junction since 2007 to 2017 treated through an endoscopic endonasal approach has been included. All patients undergone preoperative neurological examination and neuroimaging (magnetic resonance imaging [MRI] and computed tomography angiography). These examinations were repeated after 3 months and then annually. Complementary treatments, recurrence rate and clinical status at mean follow-up of 18+/-7.3 months were considered. RESULTS: Seven patients have been included in this study, mean age was of 47+/-17 years; male-to-female ratio was of 3:4. Series is composed by 6 chordomas and one foramen magnum meningioma. One patient had been already posteriorly stabilized for cranio-vertebral instability. Gross tumor removal was achieved in two cases, in the others a subtotal removal was demonstrated at postoperative MRI. One patient presented a transitory worsening of CN XII palsy, resolved within 3 months. For preoperative dysphagia and inhalation pneumonia, one case undergone tracheostomy and was fed with oro gastric tube for 10 days. Three patients died for chordoma progression and at follow-up one presented a local recurrence. CONCLUSIONS: Despite our experience is preliminary, the endoscopic endonasal approach has resulted safe for cranio cervical junction tumor with a reduced number of complications. It can give a straight and direct trajectory to this deep region. We suggest that lateral extension of the tumor beyond the plane of cranial nerves is a limit for this approach, as well as an inferior expansion caudal to C1. Larger series and longer follow-up are required to assess the proper indications of this approach. PMID- 29327892 TI - Measurement of the accuracy of dental working casts using a coordinate measuring machine. AB - Background/Aim: Dental impressions present a negative imprint of intraoral tissues of a patient which is, by pouring in gypsum, transferred extraorally on the working cast. Casting an accurate and precise working cast presents the first and very important step, since each of the following stages contributes to the overall error of the production process, which can lead to inadequately fitting dental restorations. The aim of this study was to promote and test a new model and technique for in vitro evaluation of the dental impression accuracy, as well as to asses the dimensional stability of impression material depending on the material bulk, and its effect on the accuracy of working casts. Methods: Impressions were made by the monophasic technique using the experimental master model. Custom trays with spacing of 1, 2 and 3 mm were constructed by rapid prototyping. The overall of 10 impressions were made with each custom tray. Working casts were made with gypsum type IV. Measurement of working casts was done 24 h later using a co-ordinate measuring machine. Results: The obtained results show that the working casts of all the three custom trays were in most cases significantly different in the transversal and sagittal planes in relation to the master model. The height of abutments was mainly unaffected. The degree of convergence showed certain significance in all the three custom trays, most pronounced in the tray with 3 mm spacing. Conclusion: The impression material bulk of 1-3 mm could provide accurate working casts when using the monophasic impression technique. The increase of the distance between abutment teeth influences the accuracy of working casts depending on the material bulk. [Projekat Ministarstva nauke Republike Srbije, br. TR 35020: Research and development of modelling methods and approaches in manufacturing of dental recoveries with the application of modern technologies and computer aided systems] PMID- 29327893 TI - Heart failure in grown-up congenital heart disease. AB - The increasing survival to adulthood of patients with congenital heart disease (CHD) has changed the epidemiology of adult CHD (ACHD) patients and has led to an increment in hospitalization rates due to heart failure (HF). ACHD patients hospitalized for HF have a five-fold higher risk of death than those compensated. HF occurs predominantly in patients with tetralogy of Fallot, single ventricles, and after the Mustard operation for transposition of the great arteries. Diagnostic strategies applied in acquired HF patients are usually used to evaluate ACHD patients, but sometimes this can postpone the identification of HF that can become manifest with unusual and peculiar signs or symptoms. In the same way, therapeutic management resembles the acquired HF one, even if no large randomized clinical trials have been conducted in ACHD patients. Therefore, a close monitoring in dedicated units is mandatory in order to identify in time HF manifestations and manage them adequately. PMID- 29327894 TI - Cell therapy for heart disease: current status and future directions. AB - Treatment of ischemic heart disease has evolved considerably over time, seeing a technological impetus in recent times. Prompt diagnosis and progressively earlier reperfusion of the infarct artery have become the cornerstone of the early myocardial ischemia management. However, treatment of post-infarction sequelae resulting from ischemic damage sustained within the myocardium remains a considerable challenge. In this setting, stem cell therapy has emerged as an exciting regenerative modality with a promise to arrest or even reverse the pathological myocardial remodeling. Multiple preclinical and clinical studies have thereafter reported use of various types of stem cells delivered through varying routes. While most of these studies reported positive results, some appropriate concerns were raised in others. This has resulted in considerable uncertainty regarding cell therapy and an inability to formulate therapeutic recommendations. Though there has been a considerable improvement in our understanding of stem cell properties, there is a need to identify specific mechanisms of actions in order to maximize the benefits of stem cell therapy in ischemic heart disease. With this review, we attempt to highlight some of the salient features of stem cell research, focusing on understanding the predominant types of stem cells, proposed mechanisms of action, routes of administration, and application of this exciting and innovative regenerative therapy offered by stem cells. PMID- 29327895 TI - Antimicrobial susceptibility and beta-lactamase production in Bacillus cereus isolates from stool of patients, food and environment samples. AB - Background/Aim: Bacillus cereus (B. cereus) usually ingested by food can cause two types of diseases: vomiting due to the presence of emetic toxin and diarrheal syndrome, due to the presence of diarrheal toxins. Systemic manifestations can also occur. The severe forms of disease demand antibiotic treatmant. The aim of this study was to determine the differences in antibiotic susceptibility and beta lactamase activity of B. cereus isolates from stools of humans, food and environment. Methods: Identification of B. cereus was performed with selective medium, classical biochemical test and polymerase chain reaction (PCR) with primers specific for bal gene. Thirty isolates from each group were analysed for antibiotic susceptibility using the disk-diffusion assay. Production of beta lactamase was determined by cefinase test, and double-disc method. Results: All strains identified as B. cereus using classical biochemical test, yielded 533 bp fragment with PCR. Isolates from all the three groups were susceptible to imipenem, vancomycin, and erythromycin. All isolates were susceptible to ciprofloxacin but one from the environment. A statistically significant difference between the groups was confirmed to tetracycline and trimethoprim sulphamethoxazole sensitivity. A total of 28/30 (93.33%) samples from the foods and 25/30 (83.33%) samples from environment were approved sensitive to tetracycline, while 10/30 (33.33%) isolates from stools were sensitive. Opposite to this result, high susceptibility to trimethoprim-sulphamethoxazole was shown in samples from stools (100%), while isolates from foods (63.33%) and from environment (70%) had low susceptibility. All samples produced beta-lactamases. Conclusion: The strains of B. cereus from all the three groups showed high rate of sensitivity to most tested antibiotics, except to tetracycline in samples from human stool and to trimethoprim-sulphamethoxazole in samples from food and environment. The production of beta-lactamases was confirmed in all the strains. PMID- 29327896 TI - Obesity and metabolic syndrome as risk factors for the development of non alcoholic fatty liver disease as diagnosed by ultrasound. AB - Introduction/Aim: Non-alcoholic fatty liver disease (NAFLD) is a chronic liver disease of a broad histological spectrum, characterized by the accumulation of triglycerides in more than 5% of hepatocytes in the absence of consuming alcohol in quantities harmful to the liver. The aim of our study was to determine the importance of anthropometric and laboratory parameters as well as metabolic syndrome (MS) for the diagnosis of NAFLD and to estimate their influence on the degree of liver steatosis as evaluated by ultrasound (US). Methods: The study included 86 participants, 55 of whom had fatty liver diagnosed by ultrasound and they comprised the study group. The control group consisted of 31 control subjects. During the course of hospitalization at the Clinic of Gastroenterology and Hepatology, Clinical Centre Nis, the patients had their anamnesis taken, and anthropometric measurements as well as biochemical blood analyses and abdominal ultrasound were performed. Results: The patients with NAFLD had statistically higher values of body mass index (BMI), waist circumference (WC), systolic (SBP) and diastolic blood pressure (DBP), levels of alanin and aspartate aminotransferase (ALT, AST), gamma-glutamyl transpeptidase (GGT) (p<0.001), low density lipoprotein cholesterole (LDL), total bilirubin (TBIL) (p<0.05), total cholesterol (p<0.01), triglycerides (TGL), urates, C-reactive protein (CRP), ferritin, fibrinogenes, fasting blood glucose (FBG), insulin and Homeostasis Model Assessment (HOMA-IR) (p<0.001), whereas the levels of high-density lipoprotein cholesterol (HDL) were higher in the control group (p<0.05). In the NAFLD group, there were statistically significantly more patients with hypertension (72.73% vs. 12.90%, p<0.001) and type 2 diabetes mellitus (DM) (47.27%). Metabolic syndrome was determined in 48 (87.27%) patients of the study group. An equal number of patients, 16 of them (29.09%), had 3, 4 and 5 components of MS. In the NAFLD group there were 17 overweight (30.91%) (BMI from 25 kg/m2 to 29.9 kg/m2) and 38 (69.09%) obese patients. (BMI >= 30.0 kg/m2). The largest number of patients in the obesity group, 22 (40.00%) of them, had the first degree obesity (BMI from 30 kg/m2 to 34.99 kg/m2). The largest number of the NAFLD group patients - 23 (41.82%), had an ultrasound finding of grade 3 fatty liver, 20 patients (36.36%) had grade 2 and 12 (21.82%) grade 1 fatty liver. Kruskal-Wallis test and ANOVA analysis showed statistically significant differences between groups with different US grade for insulin, LDL-cholesterol, WC, BMI (p<0.05), as well as HOMA-IR and body weight (BW) (p<0.01). Metabolic syndrome was statistically more present in patients with US finding grades 2 and 3 (p<0.01) in relation to grade 1 US finding, as well as obesity, hypertension and DM type 2 (p<0.05). Conclusion: The results of our study have confirmed that a high percentage of patients with high risk factors (DM, MS, dyslipidemia, hypertension) have NAFLD. PMID- 29327897 TI - Peripheral arterial occlusive disease and perioperative risk. AB - Surgical procedures represent a risk for different complications which may appear during the perioperative period. Cardiac ischemic events and vascular complications are the most important causes of increased morbidity and mortality and they are much more frequent in patients with manifest cardiovascular disease. This is particularly seen in patients with peripheral arterial occlusive disease (PAD), which represents advanced atherosclerosis frequently accompanied by the presence of coronary artery disease. Therefore, patients with PAD need careful preoperative examination, including estimation of functional capacity and the presence of other co-existing atherosclerotic diseases. The perioperative risk of cardiac complications should be calculated by Apgar score. In patients with unstable coronary syndrome myocardial revascularization should be performed before vascular procedures, whereas in other coronary patients pharmacotherapy should be intensified. The latter includes beta-adrenergic receptor blockers, statin therapy, which significantly improves postoperative outcome and antiplatelet drugs, which do not significantly increase major bleeding complications but significantly reduce cardiovascular thromboembolic events. Postoperative strategy for prevention of complications should be focused particularly on identification of myocardial infarction which is frequently asymptomatic. Therefore, serial postoperative measurements of troponin levels allow close monitoring of postoperative myocardial damage and help to implement strategic choices for the treatment of postoperative adverse cardiac events. PMID- 29327898 TI - Association of different electrocardiographic patterns with shock index, right ventricle systolic pressure and diameter, and embolic burden score in pulmonary embolism. AB - Background/Aim: Some electrocardiographic (ECG) patterns are characteristic for pulmonary embolism but exact meaning of the different ECG signs are not well known. The aim of this study was to determine the association between four common ECG signs in pulmonary embolism [complete or incomplete right bundle branch block (RBBB), S-waves in the aVL lead, S1Q3T3 sign and negative T-waves in the precordial leads] with shock index (SI), right ventricle diastolic diameter (RVDD) and peak systolic pressure (RVSP) and embolic burden score (EBS). Methods: The presence of complete or incomplete RBBB, S waves in aVL lead, S1Q3T3 sign and negative T-waves in the precordial leads were determined at admission ECG in 130 consecutive patients admitted to the intensive care unit of a single tertiary medical center in a 5-year period. Echocardiography examination with measurement of RVDD and RVSP, multidetector computed tomography pulmonary angiography (MDCT PA) with the calculation of EBS and SI was determined during the admission process. Multivariable regression models were calculated with ECG parameters as independent variables and the mentioned ultrasound, MDCT-PA parameters and SI as dependent variables. Results: The presence of S-waves in the aVL was the only independent predictor of RVDD (F = 39.430, p < 0.001; adjusted R2 = 0.231) and systolic peak right ventricle pressure (F = 29.903, p < 0.001; adjusted R2 = 0.185). Negative T-waves in precordial leads were the only independent predictor for EBS (F = 24.177, p < 0.001; R2 = 0.160). Complete or incomplete RBBB was the independent predictor of SI (F = 20.980, p < 0.001; adjusted R2 = 0.134). Conclusion: In patients with pulmonary embolism different ECG patterns at admission correlate with different clinical, ultrasound and MDCT-PA parameters. RBBB is associated with shock, Swave in the aVL is associated with right ventricle pressure and negative T-waves with the thrombus burden in the pulmonary tree. PMID- 29327910 TI - Local recurrence in patients treated for rectal cancer using total mesorectal excision or transection of mesorectum. AB - Background/Aim: Rectal cancer is a major health problem throughout the world, despite the great progress in the treatment and control of the disease. The aim of this study was to determine the effect of mesorectal excision type on local recurrence in patients operated on for rectal cancer within a 3- year period. Methods: The clinical retrospective study was conducted at the Clinic for General Surgery at the Clinical Center in Nis, Serbia, and included 225 patients with rectal cancer. Postoperatively, the patients were observed 36 months. Total mesorectal excision (TME) method was used in 129 (57.33%) patients, and partial mesorectal excision (PME) in 96 (42.66%). There were 145 (64.44%) man and 80 (35.55%) women, average age 66.8 years. Results: In 58 (25.77%) of the patients cancer was localized in the proximal third of the rectum, in 99 (44%) in the medium third, in 68 (30.22%) it was 8 cm of the anocutaneous line. In 167 (74.22%) patients rectal cancer was in T3 stadium. TME was performed in all the patients with cancer in the distal third of the rectum and in 61.61% of the patients with cancer in the medium third of the rectum. PME was performed in all the patients with localized cancer in the proximal third and in 38.38% of the patients with cancer in the medium third of the rectum. Local recurrence occurred in 20 (8.88%) patients, 12 (9.30%) in the TME group and 8 (8.33%) in the PME group, which was not a statistically significant difference. In 75% of the cases, relapse occurred in the patients in T3 stage. Relapse occurred in 55% of the cases in the second year after the surgery. The median survival of all the patients amounted to 35 months. The total mortality of all respondents in a 3 year period amounted to 5.3%. Conclusion: There were no statistically significant differences in the incidence of local recurrence and survival among patients who underwent TME and those underwent PME. The type of mesorectal excision does not affect the incidence of local recurrence in node-negative disease stages. PMID- 29327911 TI - Enhanced Charge Separation Efficiency Accelerates Hydrogen Evolution from Water of Carbon Nitride and 3,4,9,10-Perylene-tetracarboxylic Dianhydride Composite Photocatalyst. AB - The catalytic ability of graphitic carbon nitride is greatly affected by its intrinsic electronic properties. Although combination with chromophore has been demonstrated to be one of the promising approaches to improve the catalytic performance of carbon nitride, it is imperative to understand the key factors governing the whole process. Here, we report a composite photocatalyst CN-P by embedding perylene unit into the matrix of carbon nitride. The composite photocatalyst could catalyze hydrogen evolution with a high rate of 17.7 mmol h-1 g-1, which is 2.8 times faster than pure carbon nitride. The apparent quantum efficiency is high up to be 5.8% at 450 nm. Detailed studies reveal that the light absorption ability and charge separation efficiency are greatly enhanced in the synthesized catalyst. These are the key factors for the improved hydrogen evolution ability of CN-P than that of pure carbon nitride. PMID- 29327912 TI - Reliable Manipulation of Gas Bubble Size on Superaerophilic Cones in Aqueous Media. AB - Gas bubbles in aqueous media are ubiquitous in a broad range of applications. In most cases, the size of the bubbles must be manipulated precisely. However, it is very difficult to control the size of gas bubbles. The size of gas bubbles is affected by many factors both during and after the generation process. Thus, precise manipulation of gas bubble size still remains a great challenge. The ratchet and conical hairs of the Chinese brush enable it to realize a significant capacity for holding ink and transferring them onto paper continuously and controllably. Inspired by this, a superhydrophobic/superaerophilic cone interface is developed to manipulate gas bubble size in aqueous media. When the resultant force between the Laplace force and the axial component of the buoyancy force approaches zero, the gas bubble is held steadily by the superhydrophobic/superaerophilic copper cones in a unique position (balance position). A new kind of pressure sensor is also designed based on this principle. PMID- 29327914 TI - Mechanistic Evaluation of Bioorthogonal Decaging with trans-Cyclooctene: The Effect of Fluorine Substituents on Aryl Azide Reactivity and Decaging from the 1,2,3-Triazoline. AB - Bioorthogonal prodrug activation/decaging strategies need to be selective, rapid and release the drug from the masking group upon activation. The rates of the 1,3 dipolar cycloaddition between a trans-cyclooctene (TCO) and a series of fluorine substituted azido-PABC self-immolative spacers caging two model drugs, and subsequent release from the 1,2,3-triazoline are reported. As the number of fluorine substituents on the PABC linker increases from one to four, the rate of cycloaddition increases by almost one order of magnitude. Using a combination of fluorescence, 1H/19F NMR, and computational experiments, we have been able to determine how substituents on the PABC ring can influence the degradation rates and also the product distribution of the 1,2,3-triazoline. We have also been able to determine how these substituents influence the rate of imine hydrolysis and 1,6-self-immolation decaging rates of the generated anilines. The NMR and computational studies demonstrate that fluorine substituents on the aromatic ring lower the transition state energy required for converting the triazoline to the imine or aziridine intermediates via extrusion of diatomic nitrogen, and that in the case of a tetrafluoro substituted aromatic ring, it is the imine hydrolysis and 1,6-self-immolation that is rate-limiting. This knowledge further enhances the understanding of factors which influence the stability of triazolines, and enables potential applications of fluorinated aromatics, in particular, perfluorinated aromatics, in synthetic chemistry and sustained-release drug delivery systems. PMID- 29327915 TI - Multispectral Atomic Force Microscopy-Infrared Nano-Imaging of Malaria Infected Red Blood Cells. AB - Atomic force microscopy-infrared (AFM-IR) spectroscopy is a powerful new technique that can be applied to study molecular composition of cells and tissues at the nanoscale. AFM-IR maps are acquired using a single wavenumber value: they show either the absorbance plotted against a single wavenumber value or a ratio of two absorbance values. Here, we implement multivariate image analysis to generate multivariate AFM-IR maps and use this approach to resolve subcellular structural information in red blood cells infected with Plasmodium falciparum at different stages of development. This was achieved by converting the discrete spectral points into a multispectral line spectrum prior to multivariate image reconstruction. The approach was used to generate compositional maps of subcellular structures in the parasites, including the food vacuole, lipid inclusions, and the nucleus, on the basis of the intensity of hemozoin, hemoglobin, lipid, and DNA IR marker bands, respectively. Confocal Raman spectroscopy was used to validate the presence of hemozoin in the regions identified by the AFM-IR technique. The high spatial resolution of AFM-IR combined with hyperspectral modeling enables the direct detection of subcellular components, without the need for cell sectioning or immunological/biochemical staining. Multispectral-AFM-IR thus has the capacity to probe the phenotype of the malaria parasite during its intraerythrocytic development. This enables novel approaches to studying the mode of action of antimalarial drugs and the phenotypes of drug-resistant parasites, thus contributing to the development of diagnostic and control measures. PMID- 29327916 TI - Self-Assembly of Pseudorotaxane Structures from a Dicopper(II) Molecular Cage and Dicarboxylate Axles. AB - In this work, we employed for the first time a dinuclear bis[tris(2 aminoethyl)amine] cryptate to obtain the self-assembly of pseudorotaxane structures in an aqueous solution. The goal was achieved by exploiting the well known affinity of the dicopper azacryptate with diphenyl spacers for the terephthalate anion. In particular, a series of molecular threads were synthesized by appending either alkyl or polyoxyethylene chains on both sides of the terephthalate benzene ring. The obtained dicarboxylic acids were precipitated as sodium salts, and their affinity toward the dicopper azacryptate was determined in a methanol/water mixture (pH 7). Experimental investigations showed that the chains' length and nature have a small impact on the 1:1 binding constants, whose values range between 4.98 and 5.18 log units. Computational studies indicated that the molecular axle is threaded through the azacryptate cavity, with the terephthalate group wedged between the two copper ions, coordinating both of them in the apical position (the one that, in the free azacryptate, is occupied by a water molecule). Compared to the inclusion complex with the plain terephthalate anion, a slight strain was found in the pseudorotaxane structure, induced by the inner chain of the thread inside the cavity. These results may be of great interest in all of the fields of science and technology in which host-guest recognition and molecular cages are applied. PMID- 29327917 TI - Peptide-Based Photoelectrochemical Cytosensor Using a Hollow-TiO2/EG/ZnIn2S4 Cosensitized Structure for Ultrasensitive Detection of Early Apoptotic Cells and Drug Evaluation. AB - The ability to rapidly detect apoptotic cells and accurately evaluate therapeutic effects is significant in cancer research. To address this target, a biocompatible, ultrasensitive photoelectrochemical (PEC) cytosensing platform was developed based on electrochemically reduced graphene (EG)/ZnIn2S4 cosensitized TiO2 coupled with specific recognition between apoptotic cells and phosphatidylserine-binding peptide (PSBP). In this strategy, the HL-60 cells were selected as a model and C005, nilotinib, and imatinib were selected as apoptosis inducers to show cytosensing performances. In particular, a TiO2 photoactive substrate was designed as hollow spheres to enhance the PEC performance. Graphene was electrodeposited on the hollow TiO2-modified electrode to accelerate electron transfer and increase conductivity, followed by in situ growth of ZnIn2S4 nanocrystals as photosensitizers via successive ionic layer adsorption and reaction method, forming a TiO2/EG/ZnIn2S4 cosensitized structure that was used as a PEC matrix to immobilize PSBP for the recognition of early apoptotic cells. The detection of apoptotic cells was based on steric hindrance originating from apoptotic cell capture to induce an obvious decrease in the photocurrent signal. The ultrahigh sensitivity of the cytosensor resulted from enhanced PEC performance, bioactivity, and high binding affinity between PSBP and apoptotic cells. Compared with other assays, incorporate toxic elements were avoided, such as Cd, Ru, and Te, which ensured normal cell growth and are appropriate for cell analysis. The designed PEC cytosensor showed a low detection limit of apoptotic cells (as low as three cells), a wide linear range from 1 * 103 to 5 * 107 cells/mL, and an accurate evaluation of therapeutic effects. It also exhibited good specificity, reproducibility, and stability. PMID- 29327913 TI - Proteomic Analysis of the Downstream Signaling Network of PARP1. AB - Poly-ADP-ribosylation (PARylation) is a protein posttranslational modification (PTM) that is critically involved in many biological processes that are linked to cell stress responses. It is catalyzed by a class of enzymes known as poly-ADP ribose polymerases (PARPs). In particular, PARP1 is a nuclear protein that is activated upon sensing nicked DNA. Once activated, PARP1 is responsible for the synthesis of a large number of PARylated proteins and initiation of the DNA damage response mechanisms. This observation provided the rationale for developing PARP1 inhibitors for the treatment of human malignancies. Indeed, three PARP1 inhibitors (Olaparib, Rucaparib, and Niraparib) have recently been approved by the Food and Drug Administration for the treatment of ovarian cancer. Moreover, in 2017, both Olaparib and Niraparib have also been approved for the treatment of fallopian tube cancer and primary peritoneal cancer. Despite this very exciting progress in the clinic, the basic signaling mechanism that connects PARP1 to a diverse array of biological processes is still poorly understood. This is, in large part, due to the inherent technical difficulty associated with the analysis of protein PARylation, which is a low-abundance, labile, and heterogeneous PTM. The study of PARylation has been greatly facilitated by the recent advances in mass spectrometry-based proteomic technologies tailored to the analysis of this modification. In this Perspective, we discuss these breakthroughs, including their technical development, and applications that provide a global view of the many biological processes regulated by this important protein modification. PMID- 29327918 TI - Zeptomole Detection Scheme Based on Levitation Coordinate Measurements of a Single Microparticle in a Coupled Acoustic-Gravitational Field. AB - We present a novel analytical principle in which an analyte (according to its concentration) induces a change in the density of a microparticle, which is measured as a vertical coordinate in a coupled acoustic-gravitational (CAG) field. The density change is caused by the binding of gold nanoparticles (AuNP's) on a polystyrene (PS) microparticle through avidin-biotin association. The density of a 10-MUm PS particle increases by 2% when 500 100-nm AuNP's are bound to the PS. The CAG can detect this density change as a 5-10 MUm shift of the levitation coordinate of the PS. This approach, which allows us to detect 700 AuNP's bound to a PS particle, is utilized to detect biotin in solution. Biotin is detectable at a picomolar level. The reaction kinetics plays a significant role in the entire process. The kinetic aspects are also quantitatively discussed based on the levitation behavior of the PS particles in the CAG field. PMID- 29327919 TI - Differentiation and Relative Quantitation of Disaccharide Isomers by MALDI TOF/TOF Mass Spectrometry. AB - Saccharide isomer differentiation has been a challenge in glycomics, as the lack of technology to decipher fully the diverse structures of compositions, linkages, and anomeric configurations. Several mass spectrometry-based methods have been applied to the discrimination of disaccharide isomers, but limited quantitative analyses have been reported. In the present study, MALDI-LIFT-TOF/TOF has been investigated to differentiate and relatively quantify underivatized glucose containing disaccharide isomers that differ in composition, connectivity or configuration. N-(1-naphthyl)ethylenediamine dihydrochloride (NEDC) was used as a highly sensitive matrix without matrix interferences in low mass range, thus yielding intense chloride-attached disaccharide ions [M + Cl]-, which could be fragmented to give diagnostic characteristic fragment patterns for distinguishing these isomers. Three different types of disaccharide isomers were successfully relatively quantified in a binary mixture using the specific product ion pairs. Finally, this method was utilized to identify and relatively quantify two disaccharide isomers in Medicago leaf (maltose and sucrose) without numerous preparation steps. In general, this method is a fast, effective, and robust method for rapid differentiation and quantitation of disaccharide isomers in complex medium. PMID- 29327920 TI - Generation of Optogenetically Modified Adenovirus Vector for Spatiotemporally Controllable Gene Therapy. AB - Gene therapy is expected to be utilized for the treatment of various diseases. However, the spatiotemporal resolution of current gene therapy technology is not high enough. In this study, we generated a new technology for spatiotemporally controllable gene therapy. We introduced optogenetic and CRISPR/Cas9 techniques into a recombinant adenovirus (Ad) vector, which is widely used in clinical trials and exhibits high gene transfer efficiency, to generate an illumination dependent spatiotemporally controllable gene regulation system (designated the Opt/Cas-Ad system). We generated an Opt/Cas-Ad system that could regulate a potential tumor suppressor gene, and we examined the effectiveness of this system in cancer treatment using a xenograft tumor model. With the Opt/Cas-Ad system, highly selective tumor treatment could be performed by illuminating the tumor. In addition, Opt/Cas-Ad system-mediated tumor treatment could be stopped simply by turning off the light. We believe that our Opt/Cas-Ad system can enhance both the safety and effectiveness of gene therapy. PMID- 29327921 TI - The Nature and Reactivity of Ferryl Heme in Compounds I and II. AB - Aerobic organisms have evolved to activate oxygen from the atmosphere, which allows them to catalyze the oxidation of different kinds of substrates. This activation of oxygen is achieved by a metal center (usually iron or copper) buried within a metalloprotein. In the case of iron-containing heme enzymes, the activation of oxygen is achieved by formation of transient iron-oxo (ferryl) intermediates; these intermediates are called Compound I and Compound II. The Compound I and II intermediates were first discovered in the 1930s in horseradish peroxidase, and it is now known that these same species are used across the family of heme enzymes, which include all of the peroxidases, the heme catalases, the P450s, cytochrome c oxidase, and NO synthase. Many years have passed since the first observations, but establishing the chemical nature of these transient ferryl species remains a fundamental question that is relevant to the reactivity, and therefore the usefulness, of these species in biology. This Account summarizes experiments that were conceived and conducted at Leicester and presents our ideas on the chemical nature, stability, and reactivity of these ferryl heme species. We begin by briefly summarizing the early milestones in the field, from the 1940s and 1950s. We present comparisons between the nature and reactivity of the ferryl species in horseradish peroxidase, cytochrome c peroxidase, and ascorbate peroxidase; and we consider different modes of electron delivery to ferryl heme, from different substrates in different peroxidases. We address the question of whether the ferryl heme is best formulated as an (unprotonated) FeIV?O or as a (protonated) FeIV-OH species. A range of spectroscopic approaches (EXAFS, resonance Raman, Mossbauer, and EPR) have been used over many decades to examine this question, and in the last ten years, X-ray crystallography has also been employed. We describe how information from all of these studies has blended together to create an overall picture, and how the recent application of neutron crystallography has directly identified protonation states and has helped to clarify the precise nature of the ferryl heme in cytochrome c peroxidase and ascorbate peroxidase. We draw comparisons between the Compound I and Compound II species that we have observed in peroxidases with those found in other heme systems, notably the P450s, highlighting possible commonality across these heme ferryl systems. The identification of proton locations from neutron structures of these ferryl species opens the door for understanding the proton translocations that need to occur during O-O bond cleavage. PMID- 29327922 TI - A Constrained Tetrapeptide as a Model of Cu(I) Binding Sites Involving Cu4S6 Clusters in Proteins. AB - Peptide design is an efficient strategy to create relevant models of natural metal binding sites found in proteins. The two short tetrapeptides Ac-Cys-dPro Pro-Cys-NH2 (CdPPC) and Ac-Cys-Pro-Gly-Cys-NH2 (CPGC) were synthesized and studied as mimics of Cu(I) binding sites involved in Cu homeostasis. Both sequences contain beta turn inducing motifs to rigidify the peptide backbone structure and thereby preorganize the metal-binding side chains. The more constrained structure of the peptide CdPPC with respect to CPGC was evidenced by the measurements of the temperature coefficients of the amide protons by 1H NMR, which suggest a solvent-shielded intramolecular hydrogen bond in CdPPC, and no H bond in CPGC. The Cu(I) complexes were studied by UV, circular dichroism (CD), and NMR spectroscopies as well as electrospray ionization mass spectrometry (ESI MS) experiments in aqueous solution at physiological pH. The complexes formed with CPGC showed a complicated speciation with the possible formation of many polymetallic species. By contrast, the better preorganization in CdPPC leads to the formation of a unique Cu4L3 complex involving a Cu4S6 core. The formation of this specific cluster was confirmed by ESI-MS and by diffusion-ordered NMR spectroscopy in solution. The affinity of CdPPC for Cu(I) (beta11pH7.4 = 1017.5 calculated for a CuL complex) is more than 1 order of magnitude larger than the affinity measured for the less constrained peptide CPGC. Besides, this stability constant value is very similar to those reported with proteins. Therefore, the Cu(I) complex formed with the simple tetrapeptide CdPPC in water at physiological pH represents a very good model of Cu(I)-thiolate clusters found in proteins. The extremely large selectivity (1011) in favor of Cu(I) with respect to Zn(II), an abundant competitor in cells, makes it a promising candidate to be targeted to the liver cells for the localized treatment of Cu overload in Wilson's disease. PMID- 29327923 TI - Aliovalent Cation Substitution in UO2: Electronic and Local Structures of U1 yLayO2+/-x Solid Solutions. AB - For nuclear fuel related applications, the oxygen stoichiometry of mixed oxides U1-yMyO2+/-x is an essential property as it affects fuel properties and may endanger the safe operation of nuclear reactors. A careful review of the open literature indicates that this parameter is difficult to assess properly and that the nature of the defects, i.e., oxygen vacancies or UV, in aliovalent cation doped UO2 is still subject to controversy. To confirm the formation of UV, we have investigated the room-temperature stable U1-yLayO2+/-x phase using several experimental methods (e.g., XRD, XANES, and NMR) confirmed by theoretical calculations. This paper presents the experimental proof of UV and its effect we identified in both electronic and local structure. We observe that UV is formed in quasi-equimolar proportion as LaIII in U1-yLayO2+/-x (y = 0.06, 0.11, and 0.22) solid solutions. The fluorite structure is maintained despite the cationic substitution, but the local structure is affected as variations of the interatomic distances are found. Therefore, we provide here the definitive proof that the substitution of UIV with LaIII is not accommodated by the creation of O vacancies as has often been assumed. The UO2 fluorite structure compensates the incorporation of an aliovalent cation by the formation of UV in quasi-equimolar proportions. PMID- 29327924 TI - Two-Step Macrocycle Synthesis by Classical Ugi Reaction. AB - The direct nonpeptidic macrocycle synthesis of alpha-isocyano-omega-amines via the classical Ugi four-component reaction (U-4CR) is introduced. Herein an efficient and flexible two-step procedure to complex macrocycles is reported. In the first step, the reaction between unprotected diamines and isocyanocarboxylic acids gives high diversity of unprecedented building blocks in high yield. In the next step, the alpha-isocyano-omega-amines undergo a U-4CR with high diversity of aldehydes and carboxylic acids in a one-pot procedure. This synthetic approach is short and efficient and leads to a wide range of macrocycles with different ring sizes. PMID- 29327925 TI - Writing Theory and Modeling Papers for Langmuir: The Good, the Bad, and the Ugly. PMID- 29327926 TI - Electrochemical Reaction Mechanism of the MoS2 Electrode in a Lithium-Ion Cell Revealed by in Situ and Operando X-ray Absorption Spectroscopy. AB - As a typical transition metal dichalcogenide, MoS2 offers numerous advantages for nanoelectronics and electrochemical energy storage due to its unique layered structure and tunable electronic properties. When used as the anode in lithium ion cells, MoS2 undergoes intercalation and conversion reactions in sequence upon lithiation, and the reversibility of the conversion reaction is an important but still controversial topic. Here, we clarify unambiguously that the conversion reaction of MoS2 is not reversible, and the formed Li2S is converted to sulfur in the first charge process. Li2S/sulfur becomes the main redox couple in the subsequent cycles and the main contributor to the reversible capacity. In addition, due to the insulating nature of both Li2S and sulfur, a strong relaxation effect is observed during the cycling process. This study clearly reveals the electrochemical lithiation-delithiation mechanism of MoS2, which can facilitate further developments of high-performance MoS2-based electrodes. PMID- 29327927 TI - Atom-Dependent Edge-Enhanced Second-Harmonic Generation on MoS2 Monolayers. AB - Edge morphology and lattice orientation of single-crystal molybdenum disulfide (MoS2) monolayers, a transition metal dichalcogenide (TMD), possessing a triangular shape with different edges grown by chemical vapor deposition are characterized by atomic force microscopy and transmission electron microscopy. Multiphoton laser scanning microscopy is utilized to study one-dimensional atomic edges of MoS2 monolayers with localized midgap electronic states, which result in greatly enhanced optical second-harmonic generation (SHG). Microscopic S-zigzag edge and S-Mo Klein edge (bare Mo atoms protruding from a S-zigzag edge) terminations and the edge-atom dependent resonance energies can therefore be deduced based on SHG images. Theoretical calculations based on density functional theory clearly explain the lower energy of the S-zigzag edge states compared to the corresponding S-Mo Klein edge states. Characterization of the atomic-scale variation of edge-enhanced SHG is a step forward in this full-optical and high yield technique of atomic-layer TMDs. PMID- 29327929 TI - Development of Candidates for Positron Emission Tomography (PET) Imaging of Ghrelin Receptor in Disease: Design, Synthesis, and Evaluation of Fluorine Bearing Quinazolinone Derivatives. AB - Molecular imaging with positron emission tomography (PET) is an attractive platform for noninvasive detection and assessment of disease. The development of a PET imaging agent targeting the ghrelin receptor (growth hormone secretagogue receptor type 1a or GHS-R1a) has the potential to lead to the detection and assessment of the higher than normal expression of GHS-R1a in diseases such as prostate, breast, and ovarian cancer. To enable the development of 18F radiopharmaceuticals, we have designed and synthesized three series of quinazolinone derivatives, resulting in the identification of two compound (5i, 17) with subnanomolar binding affinity and one fluorine-bearing compound (10b) with picomolar binding affinity (20 pM), representing the highest binding affinity for GHS-R1a reported to date. Two lead compounds (5b, IC50 = 20.6 nM; 5e, IC50 = 9.3 nM) were successfully 18F-radiolabeled with radiochemical purity of greater than 99%. Molecular modeling studies were performed to shed light on ligand-receptor interactions. PMID- 29327928 TI - One-Step Bioconversion of Fatty Acids into C8-C9 Volatile Aroma Compounds by a Multifunctional Lipoxygenase Cloned from Pyropia haitanensis. AB - The multifunctional lipoxygenase PhLOX cloned from Pyropia haitanensis was expressed in Escherichia coli with 24.4 mg.L-1 yield. PhLOX could catalyze the one-step bioconversion of C18-C22 fatty acids into C8-C9 volatile organic compounds (VOCs), displaying higher catalytic efficiency for eicosenoic and docosenoic acids than for octadecenoic acids. C20:5 was the most suitable substrate among the tested fatty acids. The C8-C9 VOCs were generated in good yields from fatty acids, e.g., 2E-nonenal from C20:4, and 2E,6Z-nonadienal from C20:5. Hydrolyzed oils were also tested as substrates. The reactions mainly generated 2E,4E-pentadienal, 2E-octenal, and 2E,4E-octadienal from hydrolyzed sunflower seed oil, corn oil, and fish oil, respectively. PhLOX showed good stability after storage at 4 degrees C for 2 weeks and broad tolerance to pH and temperature. These desirable properties of PhLOX make it a promising novel biocatalyst for the industrial production of volatile aroma compounds. PMID- 29327930 TI - Synthesis of Cyclic Enones by Allyl-Palladium-Catalyzed alpha,beta Dehydrogenation. AB - The use of allyl-palladium catalysis for the one-step alpha,beta-dehydrogenation of ketones via their zinc enolates is reported. The optimized protocol utilizes commercially available Zn(TMP)2 as base and diethyl allyl phosphate as oxidant. Notably, this transformation operates under salt-free conditions and tolerates a diverse scope of cycloalkanones. PMID- 29327931 TI - Bastimolide B, an Antimalarial 24-Membered Marine Macrolide Possessing a tert Butyl Group. AB - We reported previously the discovery of the potent antimalarial 40-membered macrolide bastimolide A (1) from the tropical marine cyanobacterium Okeania hirsute. Continued investigation has led to the discovery of a new analogue, bastimolide B (2), a 24-membered polyhydroxy macrolide with a long aliphatic chain and unique terminal tert-butyl group. Its complete structure was determined by a combination of extensive spectroscopic methods and comparative analysis of its methanolysis products with those of bastimolide A. A methanolysis mechanism for bastimolide A is proposed, and one unexpected isomerization product of the C2 C3 double bond, 2-(E)-bastimolide A (3), was obtained. Bastimolide B (2) showed strong antimalarial activity against chloroquine-sensitive Plasmodium falciparum strain HB3. A preliminary investigation of the structure-activity relationship based on six analogues revealed the importance of the double bond as well as the 1,3-diol and 1,3,5-triol functionalities. PMID- 29327932 TI - Temperature Controlled Selective C-S or C-C Bond Formation: Photocatalytic Sulfonylation versus Arylation of Unactivated Heterocycles Utilizing Aryl Sulfonyl Chlorides. AB - A visible-light-induced photocatalytic method for the arylsulfonylation of heterocycles has been developed. The synthetic utility of this reaction is reflected by the direct use of commercially available sulfonyl chlorides and heterocycles under room temperature conditions. Complementarily, the photocatalytic arylation of heterocycles by sulfonyl chlorides via extrusion of SO2 is feasible at elevated temperature conditions, allowing switching between arylation or arylsulfonylation with excellent chemoselectivity. PMID- 29327933 TI - Ligand-Effect in Gold(I)-Catalyzed Rautenstrauch Rearrangement: Regio- and Stereoselective Synthesis of Bicyclo[3.2.1]octa-3,6-dienes through Cyclodimerization of 1-Ethynyl-2-propenyl Esters. AB - Gold(I) complexes bearing sterically demanding phosphine ligands such as tBuXphos catalyze the cascade Rautenstrauch rearrangement/[4 + 3] cycloaddition of 1 ethynyl-2-propenyl esters. The reaction provides an efficient and straightforward route to bicyclo[3.2.1]octa-3,6-dienes with high regio- and stereoselectivity. The formation of the [4 + 3] cycloadducts likely proceeds through the cycloaddition of a gold(I) carbenoid/gold-stabilized allyl cation intermediate with cyclopentadiene arising from Rautenstrauch rearrangement. PMID- 29327934 TI - Synthesis of Pyrrole-2-carbaldehyde Derivatives by Oxidative Annulation and Direct Csp3-H to C?O Oxidation. AB - An efficient and practical de novo synthesis of pyrrole-2-carbaldehyde skeletons featuring oxidative annulation and Csp3-H to C?O oxidation is presented, exemplified by the preparation of pyrrole-2-carbaldehyde derivatives from aryl methyl ketones, arylamines, and acetoacetate esters. Preliminary mechanistic investigations indicate that the aldehyde oxygen atom originates from oxygen. Moreover, the developed scalable approach provides a distinct advantage over traditional oxidative functionalization of C-H moieties, avoiding the use of stoichiometric quantities of hazardous oxidants. PMID- 29327936 TI - A Simple "Boxed Molecular Kinetics" Approach To Accelerate Rare Events in the Stochastic Kinetic Master Equation. AB - The chemical master equation is a powerful theoretical tool for analyzing the kinetics of complex multiwell potential energy surfaces in a wide range of different domains of chemical kinetics spanning combustion, atmospheric chemistry, gas-surface chemistry, solution phase chemistry, and biochemistry. There are two well-established methodologies for solving the chemical master equation: a stochastic "kinetic Monte Carlo" approach and a matrix-based approach. In principle, the results yielded by both approaches are identical; the decision of which approach is better suited to a particular study depends on the details of the specific system under investigation. In this Article, we present a rigorous method for accelerating stochastic approaches by several orders of magnitude, along with a method for unbiasing the accelerated results to recover the "true" value. The approach we take in this paper is inspired by the so-called "boxed molecular dynamics" (BXD) method, which has previously only been applied to accelerate rare events in molecular dynamics simulations. Here we extend BXD to design a simple algorithmic strategy for accelerating rare events in stochastic kinetic simulations. Tests on a number of systems show that the results obtained using the BXD rare event strategy are in good agreement with unbiased results. To carry out these tests, we have implemented a kinetic Monte Carlo approach in MESMER, which is a cross-platform, open-source, and freely available master equation solver. PMID- 29327935 TI - Introduction of a Crystalline, Shelf-Stable Reagent for the Synthesis of Sulfur(VI) Fluorides. AB - The design, synthesis, and application of [4-(acetylamino)phenyl]imidodisulfuryl difluoride (AISF), a shelf-stable, crystalline reagent for the synthesis of sulfur(VI) fluorides, is described. The utility of AISF is demonstrated in the synthesis of a diverse array of aryl fluorosulfates and sulfamoyl fluorides under mild conditions. Additionally, a single-step preparation of AISF was developed that installed the bis(fluorosulfonyl)imide group on acetanilide utilizing an oxidative C-H functionalization protocol. PMID- 29327937 TI - Synthesis, Structure, and Properties of Corona[6]arenes and Their Assembly with Anions in the Crystalline State. AB - The synthesis, conformational structure, electronic property, and anion complexation of novel coronarenes were systematically studied. A number of corona[4]arene[2]tetrazines that contain different combinations of nitrogen atoms with O, S, SO2, and CH2 as bridging units were synthesized conveniently by means of a fragment coupling strategy based on efficient nucleophilic aromatic substitution reaction of easily available aromatic dinucleophiles and 3,6 dichlorotetrazine. The resulting macrocycles adopt crownlike conformational structures with the nitrogen bridge(s) forming conjugation with carbonyl and the other heteroatom linkages with tetrazine. CV and DPV measurements showed that the tetrazine-bearing coronarenes were electron deficient with reduction potentials ranging from -896 to -960 mV. Owing mainly to noncovalent anion-pi attractive interactions, N2,O4-corona[4]arene[2]tetrazine formed complexes with anions of varied geometries and shapes yielding diverse assembled structures in the solid state. PMID- 29327938 TI - Glaucocalyxin A Attenuates the Activation of Hepatic Stellate Cells Through the TGF-beta1/Smad Signaling Pathway. AB - Glaucocalyxin A (GLA) is a biologically active ent-kauranoid diterpenoid isolated from Rabdosia japonica var. glaucocalyx. A large number of studies have shown that GLA possesses important pharmacological activities, such as anti inflammatory, antitumor, antifibrosis, and antiplatelet activities. However, the role of GLA in the pathogenesis of liver fibrosis remains undefined. Therefore, the aim of this study was to investigate the effects of GLA on hepatic stellate cells (HSCs) activation/proliferation and migration in vitro and its possible mechanism in liver fibrosis. HSCs were incubated with different concentrations of GLA in the presence or absence of TGF-beta1 for 24 h. Cell proliferation and migration were evaluated by the MTT assay and Transwell migration assay, respectively. Intracellular reactive oxygen species (ROS) production was measured using 2',7'-dichlorodihydrofluorescin diacetate (DCFH-DA). Western blot was used to detect the expression levels of alpha-smooth-muscle actin (alpha-SMA), collagen-I, p-Smad2, Smad2, p-Smad3, and Smad3. Our results demonstrated that GLA significantly inhibited the proliferation and migration of HSCs, and suppressed the expression of extracellular matrix in TGF-beta1-stimulated HSC-T6 cells. In addition, pretreatment with GLA markedly suppressed TGF-beta1-induced ROS level in HSC-T6 cells. Furthermore, GLA greatly inhibited the phosphorylation levels of Smad2 and Smad3 in TGF-beta1-stimulated HSC-T6 cells. Taken together, these findings indicated that GLA inhibits the proliferation and activation of HSC-T6 cells, at least in part, through the TGF-beta1/Smad signaling pathway. Therefore, GLA may be a promising potential therapeutic agent for liver fibrosis. PMID- 29327939 TI - Blockade of the Complement C5a/C5aR1 Axis Impairs Lung Cancer Bone Metastasis by CXCL16-mediated Effects. AB - RATIONALE: C5aR1 (CD88), a receptor for complement anaphylatoxin C5a, is a potent immune mediator. Its impact on malignant growth and dissemination of non-small cell lung cancer cells is poorly understood. OBJECTIVES: To investigate the contribution of the C5a/C5aR1 axis to the malignant phenotype of non-small cell lung cancer cells, particularly in skeletal colonization, a preferential lung metastasis site. METHODS: Association between C5aR1 expression and clinical outcome was assessed in silico and validated by immunohistochemistry. Functional significance was evaluated by lentiviral gene silencing and ligand l-aptamer inhibition in in vivo models of lung cancer bone metastasis. In vitro functional assays for signaling, migration, invasion, metalloprotease activity, and osteoclastogenesis were also performed. MEASUREMENTS AND MAIN RESULTS: High levels of C5aR1 in human lung tumors were significantly associated with shorter recurrence-free survival, overall survival, and bone metastasis. Silencing of C5aR1 in lung cancer cells led to a substantial reduction in skeletal metastatic burden and osteolysis in in vivo models. Furthermore, metalloproteolytic, migratory, and invasive tumor cell activities were modulated in vitro by C5aR1 stimulation or gene silencing. l-Aptamer blockade or C5aR1 silencing significantly reduced the osseous metastatic activity of lung cancer cells in vivo. This effect was associated with decreased osteoclastogenic activity in vitro and was rescued by the exogenous addition of the chemokine CXCL16. CONCLUSIONS: Disruption of C5aR1 signaling in lung cancer cells abrogates their tumor-associated osteoclastogenic activity, impairing osseous colonization. This study unveils the role played by the C5a/C5aR1 axis in lung cancer dissemination and supports its potential use as a novel therapeutic target. PMID- 29327940 TI - The different faces of renal angiomyolipomas on radiologic imaging: a pictorial review. AB - Renal angiomyolipoma (AML) is an uncommon renal tumour, generally composed of mature adipose tissue, dysmorphic blood vessels and smooth muscle. Identification of intratumoral fat on unenhanced CT images is the most reliable finding for establishing the diagnosis of renal AML. However, AMLs sometimes exhibit atypical findings, including cystic as well as solid forms; some of these variants overlap with the appearance of other renal tumours. A rare type of AML, the epithelioid type, possesses malignant potential. The aim of this pictorial review is to gather the different imaging features of AMLs including the classic and fat-poor types, AMLs with epithelial cysts, epithelioid AML, AML associated with tuberous sclerosis, haemorrhagic AML and large AMLs mimicking retroperitoneal liposarcomas. The diagnostic clues that help to distinguish AMLs from other renal tumours are also described in the review. PMID- 29327942 TI - Efficient selective screening for heart failure in elderly men and women from the community: A diagnostic individual participant data meta-analysis. AB - Background Prevalence of undetected heart failure in older individuals is high in the community, with patients being at increased risk of morbidity and mortality due to the chronic and progressive nature of this complex syndrome. An essential, yet currently unavailable, strategy to pre-select candidates eligible for echocardiography to confirm or exclude heart failure would identify patients earlier, enable targeted interventions and prevent disease progression. The aim of this study was therefore to develop and validate such a model that can be implemented clinically. Methods and results Individual patient data from four primary care screening studies were analysed. From 1941 participants >60 years old, 462 were diagnosed with heart failure, according to criteria of the European Society of Cardiology heart failure guidelines. Prediction models were developed in each cohort followed by cross-validation, omitting each of the four cohorts in turn. The model consisted of five independent predictors; age, history of ischaemic heart disease, exercise-related shortness of breath, body mass index and a laterally displaced/broadened apex beat, with no significant interaction with sex. The c-statistic ranged from 0.70 (95% confidence interval (CI) 0.64 0.76) to 0.82 (95% CI 0.78-0.87) at cross-validation and the calibration was reasonable with Observed/Expected ratios ranging from 0.86 to 1.15. The clinical model improved with the addition of N-terminal pro B-type natriuretic peptide with the c-statistic increasing from 0.76 (95% CI 0.70-0.81) to 0.89 (95% CI 0.86 0.92) at cross-validation. Conclusion Easily obtainable patient characteristics can select older men and women from the community who are candidates for echocardiography to confirm or refute heart failure. PMID- 29327941 TI - Infection Is Not Required for Mucoinflammatory Lung Disease in CFTR-Knockout Ferrets. AB - RATIONALE: Classical interpretation of cystic fibrosis (CF) lung disease pathogenesis suggests that infection initiates disease progression, leading to an exuberant inflammatory response, excessive mucus, and ultimately bronchiectasis. Although symptomatic antibiotic treatment controls lung infections early in disease, lifelong bacterial residence typically ensues. Processes that control the establishment of persistent bacteria in the CF lung, and the contribution of noninfectious components to disease pathogenesis, are poorly understood. OBJECTIVES: To evaluate whether continuous antibiotic therapy protects the CF lung from disease using a ferret model that rapidly acquires lethal bacterial lung infections in the absence of antibiotics. METHODS: CFTR (cystic fibrosis transmembrane conductance regulator)-knockout ferrets were treated with three antibiotics from birth to several years of age and lung disease was followed by quantitative computed tomography, BAL, and histopathology. Lung disease was compared with CFTR-knockout ferrets treated symptomatically with antibiotics. MEASUREMENTS AND MAIN RESULTS: Bronchiectasis was quantified from computed tomography images. BAL was evaluated for cellular differential and features of inflammatory cellular activation, bacteria, fungi, and quantitative proteomics. Semiquantitative histopathology was compared across experimental groups. We demonstrate that lifelong antibiotics can protect the CF ferret lung from infections for several years. Surprisingly, CF animals still developed hallmarks of structural bronchiectasis, neutrophil-mediated inflammation, and mucus accumulation, despite the lack of infection. Quantitative proteomics of BAL from CF and non-CF pairs demonstrated a mucoinflammatory signature in the CF lung dominated by Muc5B and neutrophil chemoattractants and products. CONCLUSIONS: These findings implicate mucoinflammatory processes in the CF lung as pathogenic in the absence of clinically apparent bacterial and fungal infections. PMID- 29327943 TI - Phenotyping Pharyngeal Pathophysiology using Polysomnography in Patients with Obstructive Sleep Apnea. AB - RATIONALE: Therapies for obstructive sleep apnea (OSA) could be administered on the basis of a patient's own phenotypic causes ("traits") if a clinically applicable approach were available. OBJECTIVES: Here we aimed to provide a means to quantify two key contributors to OSA-pharyngeal collapsibility and compensatory muscle responsiveness-that is applicable to diagnostic polysomnography. METHODS: Based on physiological definitions, pharyngeal collapsibility determines the ventilation at normal (eupneic) ventilatory drive during sleep, and pharyngeal compensation determines the rise in ventilation accompanying a rising ventilatory drive. Thus, measuring ventilation and ventilatory drive (e.g., during spontaneous cyclic events) should reveal a patient's phenotypic traits without specialized intervention. We demonstrate this concept in patients with OSA (N = 29), using a novel automated noninvasive method to estimate ventilatory drive (polysomnographic method) and using "gold standard" ventilatory drive (intraesophageal diaphragm EMG) for comparison. Specialized physiological measurements using continuous positive airway pressure manipulation were employed for further comparison. The validity of nasal pressure as a ventilation surrogate was also tested (N = 11). MEASUREMENTS AND MAIN RESULTS: Polysomnography-derived collapsibility and compensation estimates correlated favorably with those quantified using gold standard ventilatory drive (R = 0.83, P < 0.0001; and R = 0.76, P < 0.0001; respectively) and using continuous positive airway pressure manipulation (R = 0.67, P < 0.0001; and R = 0.64, P < 0.001; respectively). Polysomnographic estimates effectively stratified patients into high versus low subgroups (accuracy, 69-86% vs. ventilatory drive measures; P < 0.05). Traits were near-identical using nasal pressure versus pneumotach (N = 11, R >= 0.98, both traits; P < 0.001). CONCLUSIONS: Phenotypes of pharyngeal dysfunction in OSA are evident from spontaneous changes in ventilation and ventilatory drive during sleep, enabling noninvasive phenotyping in the clinic. Our approach may facilitate precision therapeutic interventions for OSA. PMID- 29327945 TI - The gas bubble sign-a reliable indicator of laryngeal fractures in hanging on post-mortem CT. AB - OBJECTIVE: The purpose was to evaluate the presence of gas in the tissue adjacent to the laryngeal structures, "the gas bubble sign", in cases of hanging as a diagnostic indicator of neck trauma. METHODS: In this study, post-mortem CT (PMCT) scans and autopsies of 35 victims of hanging were examined to reveal age dependent changes, laryngeal fracture, fracture location and the presence of gas. A matched group with cardiac arrest or intoxication was used as controls (n = 35). An autopsy was performed in each case. RESULTS: Incomplete suspension was the most common method in hanging. The thyroid horns (90.5%) were identified as the most vulnerable location for fractures. Laryngeal deformity and dislocation, which was only detected on PMCT, was observed in 57.1% and was concomitant with fractures in 83.3%. Laryngeal fractures are more common with advanced age (>40 years, 88.9%) and less common in younger subjects (<40 years, 29.4%). The gas bubble sign with regard to laryngeal fractures yielded a sensitivity of 79.2%, a positive predictive value of 95%, a specificity of 90.9%, a negative predictive value of 34.5% and an accuracy of 83%. CONCLUSION: The complex evaluation of the larynx is profoundly supported by PMCT and the detection of the gas bubble sign as a diagnostic indicator of neck trauma. This relevant diagnostic finding might aid in not only post-mortem cases but also clinical cases, for patients who survive an assault to the neck. Advances in knowledge: (1) The gas bubble sign is a diagnostic indicator of neck trauma in not putrefied bodies. (2) PMCT supports evaluation of trauma to the neck in hanging tremendously. (3) The diagnostic finding of gas located at the laryngeal structures may not only aid in post mortem cases but also clinical cases of people who survive an assault to the neck. PMID- 29327944 TI - Diagnostic accuracy of 18F-FDG PET or PET/CT for the characterization of adrenal masses: a systematic review and meta-analysis. AB - OBJECTIVE: We aimed to explore the role of the diagnostic accuracy of 18F fluodeoxyglucose PET (18F-FDG PET) or PET/CT for characterization of adrenal lesions through a systematic review and meta-analysis. METHODS: The MEDLINE, EMBASE, and Cochrane Library database, from the earliest available date of indexing through 30 April 2017, were searched for studies evaluating the diagnostic performance of 18F-FDG PET or PET/CT for characterization of adrenal lesions. We determined the sensitivities and specificities across studies, calculated positive and negative likelihood ratios (LR + and LR-), and constructed summary receiver operating characteristic curves. RESULTS: Across 29 studies (2421 patients), the pooled sensitivity for 18F-FDG PET or PET/CT was 0.91 [95% CI (0.88-0.94)] with heterogeneity (chi2 = 141.8, p = 0.00) and a pooled specificity of 0.91 [95% CI (0.87-0.93)] with heterogeneity (chi2 = 113.7, p = 0.00). Likelihood ratio (LR) syntheses gave an overall positive likelihood ratio (LR+) of 9.9 [95% CI (7.1-13.7)] and negative likelihood ratio (LR-) of 0.09 [95% CI (0.07-0.13)]. The pooled diagnostic odds ratio was 105 [95% CI (63 176)]. In metaregression analysis, study design, publication year, study location (western vs others), interpretation criteria of PET or PET/CT images, quantification of PET or PET/CT [SUVmax (maximum standardized uptake value) vs SUV (standardized uptake value) ratio], patient group, and analysis method (patient-based vs lesion-based) were the sources of the study heterogeneity. However, in multivariate metaregression, no definite variable was the source of the study heterogeneity. CONCLUSION: 18F-FDG PET or PET/CT demonstrated good sensitivity and specificity for the characterization of adrenal masses. At present, the literature regarding the use of 18F-FDG PET or PET/CT for the characterization of adrenal masses remains still limited; thus, further large multicenter studies would be necessary to substantiate the diagnostic accuracy of 18F-FDG PET or PET/CT characterization of adrenal masses. Advances in knowledge: 18F- FDG PET or PET/CT showed good sensitivity and specificity for the characterization of adrenal masses and could provide additional information for that purpose. PMID- 29327946 TI - Posttranscriptional Regulation of Human Antigen R by miR-133b Enhances Docetaxel Cytotoxicity Through the Inhibition of ATP-Binding Cassette Subfamily G Member 2 in Prostate Cancer Cells. AB - Docetaxel (DTX)-based chemotherapy is a first-line therapy in patients with castration-resistant prostate cancer. However, development of DTX resistance remains a challenge in cancer treatment. miRNAs have been shown to be involved in drug resistance in tumors. Nevertheless, little is known about the function and detailed molecular mechanism of miR-133b in DTX resistance of prostate cancer cells. The current study showed that miR-133b was downregulated, while human antigen R (HuR) was upregulated in prostate cancer cells. HuR was identified as a target of miR-133b, and miR-133b could suppress HuR expression. Ectopic expression of miR-133b and HuR knockdown suppressed cell viability and promoted DTX-induced apoptosis in DTX-treated prostate cancer cells, which were restored by HuR overexpression. Furthermore, HuR overexpression partially abolished the inhibitory effect of miR-133b overexpression on ATP-binding cassette (ABC) subfamily G member 2 (ABCG2) expression in prostate cancer cells. ABCG2 overexpression relieved DTX and miR-133b cytotoxicity in prostate cancer cells. In conclusion, posttranscriptional regulation of HuR by miR-133b enhances DTX cytotoxicity through inhibition of ABCG2, revealing a novel miR-133b/HuR/ABCG2 regulatory pathway to overcome chemoresistance in prostate cancer cells. PMID- 29327947 TI - Secnidazole: next-generation antimicrobial agent for bacterial vaginosis treatment. AB - Secnidazole is a next-generation 5-nitroimidazole approved for more than three decades in Europe, Asia, South America and Africa and recently in the USA as a single-dose (2 g) treatment of bacterial vaginosis (BV). Secnidazole is characterized by potent in vitro antimicrobial activity against BV-associated pathogens, as well as prolonged terminal elimination half-life and systemic exposure. These characteristics form the basis of effective and safe treatment of BV with a 2-g single-dose secnidazole regimen, which was recently confirmed in double-blind, placebo-controlled clinical trials conducted in the USA. The option to treat BV with single-dose secnidazole not only cures the primary infection but also may diminish risks of serious sequelae of untreated or undertreated infection. PMID- 29327948 TI - Effects of Lumacaftor-Ivacaftor Therapy on Cystic Fibrosis Transmembrane Conductance Regulator Function in Phe508del Homozygous Patients with Cystic Fibrosis. AB - RATIONALE: The combination of the CFTR (cystic fibrosis transmembrane conductance regulator) corrector lumacaftor with the potentiator ivacaftor has been approved for the treatment of patients with cystic fibrosis homozygous for the Phe508del CFTR mutation. The phase 3 trials examined clinical outcomes but did not evaluate CFTR function in patients. OBJECTIVES: To examine the effect of lumacaftor ivacaftor on biomarkers of CFTR function in Phe508del homozygous patients with cystic fibrosis aged 12 years and older. METHODS: This prospective observational study assessed clinical outcomes including FEV1% predicted and body mass index, and CFTR biomarkers including sweat chloride concentration, nasal potential difference, and intestinal current measurement before and 8-16 weeks after initiation of lumacaftor-ivacaftor. MEASUREMENTS AND MAIN RESULTS: A total of 53 patients were enrolled in the study, and 52 patients had baseline and follow-up measurements. After initiation of lumacaftor-ivacaftor sweat chloride concentrations were reduced by 17.8 mmol/L (interquartile range [IQR], -25.9 to 6.1; P < 0.001), nasal potential difference showed partial rescue of CFTR function in nasal epithelia to a level of 10.2% (IQR, 0.0-26.1; P < 0.011), and intestinal current measurement showed functional improvement in rectal epithelia to a level of 17.7% of normal (IQR, 10.8-29.0; P < 0.001). All patients improved in at least one CFTR biomarker, but no correlations were found between CFTR biomarker responses and clinical outcomes. CONCLUSIONS: Lumacaftor-ivacaftor results in partial rescue of Phe508del CFTR function to levels comparable to the lower range of CFTR activity found in patients with residual function mutations. Functional improvement was detected even in the absence of short-term improvement of FEV1% predicted and body mass index. Clinical trial registered with www.clinicaltrials.gov (NCT02807415). PMID- 29327949 TI - Work-exacerbated Asthma. PMID- 29327950 TI - Association of Avian Veterinarians News. PMID- 29327951 TI - What Is Your Diagnosis? PMID- 29327953 TI - Multicentric Cryptococcosis in a Congo African Grey Parrot ( Psittacus erithacus erithacus). AB - An approximately 10-year-old, female Congo African grey parrot ( Psittacus erithacus erithacus) developed progressive, unilateral exophthalmos and buphthalmos. Survey radiographs revealed a large, coelomic, soft tissue mass, which was confirmed on computed tomography scan. Aspirates of both the contents of the buphthalmic globe and coelomic mass were consistent with Cryptococcus species. Initial results were later confirmed with serum antigen latex agglutination and polymerase chain reaction testing, and the organism was then identified as Cryptococcus neoformans with DNA sequencing. During the course of 1 year, the bird was treated with combinations of oral terbinafine, fluconazole, and flucytosine, as well as intraocular amphotericin B. The coelomic mass dramatically decreased in size during the course of treatment, but the globe continued to enlarge. The bird died after exhibiting ataxia and seizures approximately 13 months after initial diagnosis, and necropsy confirmed colonization of the cerebrum and meninges with Cryptococcus. Cryptococcus remains a rare fungal disease of birds that is often refractory to treatment. PMID- 29327954 TI - Prevalence of Caryospora Species (Apicomplexa: Eimeriidae) in Falcons in the United Arab Emirates. AB - A total of 3975 fecal samples, originated from the same number of individual birds, from 7 dedicated falcon hospitals, were examined to determine the prevalence of Caryospora species in the falcon population used in the sport of falconry in the United Arab Emirates (UAE). From that total, 297 (7.5%) were positive for the presence of Caryospora species. The falcons were all captive bred within the UAE and abroad, mainly from Germany, Spain, the United States, and Canada. Positive samples for the presence of Caryospora species were sporulated, and the taxonomy was established based on morphologic characteristics. The results showed the prevalence of the following Caryospora species: C kutzeri 41.4%, C neofalconis 25.6%, C megafalconis 18.2%, C falconis 10.4%, C cherrughi 3.7%, and C boeri 0.7%. The prevalence of Caryospora species among the various falcon species in this study was: gyr * peregrine hybrid falcons ( Falco rusticolus * Falco peregrinus), 27.3%; gyr falcons ( Falco rusticolus), 25.6%; peregrine falcons ( Falco peregrinus), 20.5%; saker falcons ( Falco cherrug), 16.5%; gyr * saker hybrid falcons ( Falco rusticolus * Falco cherrug), 8.1%; Eurasian kestrels ( Falco tinnunculus), 1%; red-napped shaheen ( Falco pelegrinoides babylonicus), 0.7%; and American kestrels ( Falco sparverius), 0.3%. PMID- 29327955 TI - Co-occurrence of Mycoplasma Species and Pigeon Herpesvirus-1 Infection in Racing Pigeons ( Columba livia). AB - Oropharyngeal swab samples were collected from 438 live racing pigeons ( Columba livia), with and without signs of respiratory disease, that were housed in 220 lofts in 3 provinces in the western part of the Netherlands. Polymerase chain reaction (PCR) was used to identify Mycoplasma species and pigeon herpesvirus-1 (PHV-1) from the samples. In 8.6% of the pigeon lofts tested, signs of respiratory disease were present in pigeons at sampling, and in 30.9% of the sampled pigeon lofts, respiratory signs were observed in pigeons during the 6 month period immediately before sampling. A total of 39.8% of tested pigeons (54.5% of tested lofts) were positive for Mycoplasma species, and 30.6% of tested pigeons (48.6% of tested lofts) were positive for PHV-1. In 15.8% of the tested pigeons (26.8% of tested pigeon lofts), coinfection by Mycoplasma species and PHV 1 was identified. The number of pigeon lofts having pigeons coinfected by Mycoplasma species and PHV-1 was higher than that where only one of the infections was identified. Neither the presence of Mycoplasma species, PHV-1, nor the co-occurrence of both infections was significantly associated with signs of respiratory disease. PMID- 29327956 TI - The Incidence and Treatment Outcomes of Macrorhabdus ornithogaster Infection in Budgerigars ( Melopsittacus undulatus) in a Veterinary Clinic. AB - Macrorhabdus ornithogaster, avian gastric yeast, is a common cause of gastrointestinal disease in budgerigars ( Melopsittacus undulatus). To better understand the clinical disease in budgerigars presented in a practice population, we reviewed the occurrence, clinical signs, and treatment success of M ornithogaster disease in budgerigars during a 2.5-year period at the Clinic for Birds and Reptiles, University of Leipzig (Leipzig, Germany). The yeast was diagnosed by microscopic examination of fresh fecal samples. Male budgerigars of all ages were most affected. Most clinical signs in birds with confirmed positive results were nonspecific, except for the occurrence of undigested seeds in the feces. Although radiographic appearance of a dilated proventriculus is indicative of a M ornithogaster infection, it is difficult to recognize because of the small size of the budgerigars. Birds with positive results were treated with amphotericin B (100 mg/kg PO q12h) for 4 weeks. Treatment was stressful for the birds because of the handling required and the long treatment duration, and therapeutic results were unsatisfactory. Therefore, the indications for treatment with amphotericin B should be carefully considered in birds with positive M ornithogaster results. An increased occurrence of the infection in association with other pathogens was detected. PMID- 29327957 TI - Unusual Outbreak of Fatal Clostridiosis in a Group of Captive Brown Pelicans ( Pelecanus occidentalis). AB - Fatal clostridial infections and clostridial toxicoses are common in birds. Most fatalities are associated with toxin production and progress rapidly, often within 24 hours of infection. We describe an unusual and protracted course of disease in 6 captive brown pelicans ( Pelecanus occidentalis), which was believed to result from toxicosis by toxovar A produced by a mixed infection with Clostridium sordellii and Clostridium perfringens. Although the first death in the group occurred 3 days after signs of illness were documented, the remaining birds died over a 38-day period despite aggressive antibiotic and supportive therapy. Although the birds presented with classic signs of botulism, Clostridium botulinum was not identified in any tissues or environmental samples. Postmortem findings in all pelicans included extensive subacute myonecrosis, enteritis, and nonsuppurative hepatitis. Alpha-toxins and sordellilysin genes from C perfringens and C sordelli isolates, respectively, were detected via polymerase chain reaction. The source of the pathogenic bacteria was sediment within a water basin inside the affected birds' enclosure. PMID- 29327958 TI - How Not to "Wing It" with Backyard Poultry. PMID- 29327960 TI - Pharmacokinetics of a Single Intramuscular Injection of Long-Acting Ceftiofur Crystalline-Free Acid in Cattle Egrets ( Bubulcus ibis). AB - We determined the pharmacokinetic properties of ceftiofur crystalline-free acid (CCFA), a long-acting antibiotic, after a single intramuscular injection in cattle egrets ( Bubulcus ibis). A dose of 20 mg/kg was administered intramuscularly to 18 birds and blood samples were collected via jugular venipuncture at 1, 2, 4, 8, 12, 24, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours after CCFA administration. Plasma concentrations of ceftiofur free acid equivalents (CFAEs) were measured via high-performance liquid chromatography. The minimum inhibitory concentration (MIC) of 1 MUg/mL was reached by 1 hour after administration and remained higher than the MIC for at least 72 hours in all birds. This target concentration is effective for many bacterial infections in avian species. The area under the plasma concentration versus time curve was 451.3 h*MUg/mL, maximum plasma concentration was 16.22 MUg/mL, time to maximum plasma concentration was 3.2 hours, mean harmonic half-life was 37.92 hours, and time that the concentrations of CFAEs were higher than the target MIC was a minimum of 72 hours. PMID- 29327961 TI - Tracheal Resection in a Secretary Bird ( Sagittarius serpentarius) with Granulomatous, Foreign-body Induced Tracheitis. AB - A 24-year-old female secretary bird ( Sagittarius serpentarius) was presented with acute, mild dyspnea occurring only during feeding times. Despite initial conservative therapy consisting of antibiotics and antifungal, antiparasitic, and anti-inflammatory drugs, the dyspnea worsened progressively, resulting in severe respiratory distress. Radiographs of the trachea suggested stenosis in the caudal one-third of the trachea. Tracheal endoscopy revealed an obstruction of approximately 90% of the tracheal lumen, in addition to mild suspected aspergillosis of the air sacs. Tracheal resection and anastomosis were performed, during which 1.5 cm of abnormal trachea was removed. Histopathologic examination showed severe granulomatous tracheitis, most likely induced by foreign body material. Respiratory signs resolved immediately postoperatively. Antibiotic and anti-inflammatory therapy continued for another 7 days and the bird was treated with antifungals for a total of 45 days. The bird recovered uneventfully. We encourage tracheal resection and anastomosis for severe tracheal stenosis even in aged, large birds of prey that are managed in large aviaries. PMID- 29327962 TI - Acute, Fatal, Presumptive Xylitol Toxicosis in Cape Sugarbirds ( Promerops cafer). AB - Twenty-nine wild Cape sugarbirds ( Promerops cafer) died acutely after ingestion of a homemade xylitol nectar solution from a bird feeder. The most aggressive feeders were first affected. Most birds showed clinical signs within 15 minutes of nectar ingestion, including incoordination, weakness, falling from perches, collapse, and death. A few birds showing clinical signs seemed to spontaneously recover and fly away. Full necropsy examinations done on 27 birds were hampered by freezing artifact and autolysis, but results indicated death was caused by the consequences of acute hypoglycemia. A presumptive diagnosis of xylitol toxicity was made based on the history, clinical signs, and absence of other obvious causes of death. This is potentially the first record of xylitol toxicity in wild birds. PMID- 29327963 TI - Antemortem Diagnosis of Coxiellosis in a Blue and Gold Macaw ( Ara ararauna). AB - A 15-year-old female blue and gold macaw ( Ara ararauna) was presented for evaluation after being found laterally recumbent, reluctant to move, and lethargic. Results of a complete blood count showed an increased number of immature heterophils with increased cytoplasmic basophilia and degranulation and the presence of a left shift. Radiographs and a computed tomography scan were performed and revealed a markedly enlarged spleen. An ultrasound-guided fine needle aspirate of the spleen was submitted for cytologic examination and aerobic bacterial culture. While the culture revealed no growth, cytologic examination identified mononuclear phagocytes with cytoplasmic vacuoles containing structures consistent with bacteria. Pan-bacterial 16S rRNA polymerase chain reaction of the splenic sample followed by direct sequencing identified a Coxiella-like agent identical to one previously isolated in the liver of a golden-mantled rosella ( Platycercus eximius). Phylogenetic analysis shows that avian coxiellosis agents and Coxiella burnetii, the agent of Q fever, represent 2 independent events of development of vertebrate pathogenicity in this group of tick endosymbionts. This report suggests diagnostic and treatment directions for coxiellosis in avian patients and indicates where further study is needed. PMID- 29327964 TI - Endoscopic Removal of Gastrointestinal Foreign Bodies in Two African Grey Parrots ( Psittacus erithacus) and a Hyacinth Macaw ( Anodorhynchus hyacinthinus). AB - Two African grey parrots ( Psittacus erithacus) and one hyacinth macaw ( Anodorhynchus hyacinthinus) were examined because of varying clinical signs ranging from general lethargy to seizure-like episodes and regurgitation. Radiography and fluoroscopy in the 3 birds demonstrated variable degrees of gastric abnormalities, suggesting the presence of foreign material or stricture like defects. Upper gastrointestinal rigid endoscopy by ingluviotomy revealed foreign bodies that were removed endoscopically. Minor postoperative complications were pulmonary congestion or mild aspiration and cardiac arrhythmia, both of which resolved, and no serious deleterious effects were associated with endoscopy in the short or long term. Endoscopy is recommended for examination and removal of foreign bodies from the upper gastrointestinal tract because it is less invasive and traumatic than traditional surgical approaches. PMID- 29327966 TI - Ocular Histomorphometry of Free-Living Common Kestrels ( Falco tinnunculus). AB - We evaluated the histomorphometry of the eye structures (cornea, retina, choroid, and sclera) of 13 adult free-living common kestrels ( Falco tinnunculus). Birds included in the study were euthanatized because of severe trauma from a motor vehicle injury. The eyes were enucleated immediately after euthanasia, fixed in 10% buffered formalin, and decalcified. The right eyes were cut vertically (dorsoventrally) and the left eyes cut horizontally (temporonasally). Tissues were processed, stained with hematoxylin and eosin, and evaluated by an image analysis software. The thicknesses of the diverse corneal layers were measured at 3 points; 2 at the peripheral region (A and C) and one at the central region (B). The thicknesses of the retina, choroid, and sclera were evaluated at 6 different positions. Measurements of the left and right eyes of the male and female birds were compared. The median thicknesses of the cornea at the peripheral points were 210.78 (A) and 197.79 (C) MUm, and 129 MUm at the central point (B). The thickness of the cornea did not differ significantly between males and females or between right or left eyes. The mean thicknesses of the retina, choroid, and sclera were 91.13, 20.74, and 92.8 MUm, respectively. The thickness of the choroid and sclera did not differ significantly between the sexes or between the right and left eyeballs. The retinas of the females were significantly thicker than those of males at the points in the fundus of the eyeball, near the insertion of the pecten (optical nerves). PMID- 29327967 TI - Cumulative Subject Index. PMID- 29327969 TI - AtOZF1 Positively Regulates Defense Against Bacterial Pathogens and NPR1 Independent Salicylic Acid Signaling. AB - Plant hormone salicylic acid (SA) plays critical roles in defense signaling against biotrophic pathogens. Pathogen inoculation leads to SA accumulation in plants. SA activates a transactivator protein NPR1, which, in turn, transcriptionally activates many defense response genes. Reports also suggest the presence of NPR1-independent pathways for SA signaling in Arabidopsis. Here, we report the characterization of a zinc-finger protein-coding gene AtOZF1 that positively influences NPR1-independent SA signaling. Mutants of AtOZF1 are compromised, whereas AtOZF1-overexpressing plants are hyperactive for defense against virulent and avirulent pathogens. AtOZF1 expression is SA-inducible. AtOZF1 function is not required for pathogenesis-associated biosynthesis and accumulation of SA. However, it is required for SA responsiveness. By generating atozf1npr1 double mutant, we show that contributions of these two genes are additive in terms of defense. We identified AtOZF1-interacting proteins by a yeast-two-hybrid screening of an Arabidopsis cDNA library. VDAC2 and NHL3 are two AtOZF1-interacting proteins, which are positive regulators of basal defense. AtOZF1 interacts with NHL3 and VDAC2 in plasma membrane and mitochondria, respectively. Our results demonstrate that AtOZF1 coordinates multiple steps of plant-pathogen interaction. PMID- 29327970 TI - It is Electric! Electroconvulsive Therapy for Refractory Central Pain and Comorbid Psychiatric Disease. AB - Central pain syndromes are a complex, diverse group of clinical conditions that are poorly understood. We present a patient with progressive, debilitating central pain and co-existing mood disorders that was refractory to multimodal pharmacologic and nonpharmacologic therapies, but that ultimately responded to electroconvulsive therapy (ECT). The patient described it at various times as her skin being "lit on fire," "stabbed," "squeezed like a boa constrictor," or itching unbearably. She underwent a course of three sequential ECT treatments during her hospitalization and it dramatically decreased her pain. She began maintenance ECT, and a rate of roughly one treatment a month provided persistent pain suppression. Despite this lack of evidence, ECT has a favorable safety profile and can be considered in the therapeutic armamentarium for patients who have exhausted standard treatment regimens who continue to have suffering in the setting of central pain syndromes and coexisting mood disorders. PMID- 29327971 TI - Inflammatory Potential of Diet is Associated with Increased Odds of Cataract in a Case-Control Study from Iran. AB - BACKGROUND: In previous studies, diet has been shown to be associated with cataract. However, no study to date has focused on the association between inflammatory potential of diet and cataract. OBJECTIVES: In this case-control study conducted in Iran, we examined the association of the dietary inflammatory index (DII(r)) and cataract. METHODS: This case-control study included 97 cataract cases and 198 healthy controls hospitalized for acute non-neoplastic diseases with the control group matched according to age (with a five-year interval) and sex with the case group. The DII was computed based on dietary intake assessed by a previously validated food frequency questionnaire. Multivariable logistic regression models were used to estimate odds ratios (ORs), with the DII analyzed as both continuous and as tertiles. Energy was adjusted using the residual method. RESULTS: Subjects with higher DII scores (i.e., with a more pro-inflammatory diet) had a higher odds of cataract, with the DII being used as both a continuous variable (ORcontinuous 1.51, 95% confidence interval, CI, 1.13 - 2.03; one unit increase corresponding to ~18% of its range in the current study) and as tertiles (ORtertile3vs1 2.67, 95%CI 1.32 - 5.48, Ptrend = 0.002). CONCLUSIONS: These results indicate that a pro-inflammatory diet is associated with increased risk of cataract. Additional studies should be conducted to further explore this association. PMID- 29327972 TI - Albert Dereymaeker and Joseph Cyriel Mulier's description of anterior cervical discectomy with fusion in 1955. AB - Anterior cervical discectomy with fusion (ACDF) is a very well-known and often performed procedure in the practice of spine surgeons. The earliest descriptions of the technique have always been attributed to Cloward, Smith, and Robinson. However, in the French literature, this procedure was also described by others during the exact same time period (in the 1950s). At a meeting in Paris in 1955, Belgians Albert Dereymaeker and Joseph Cyriel Mulier, a neurosurgeon and an orthopedic surgeon, respectively, described the technique that involved an anterior cervical discectomy and the placement of an iliac crest graft in the intervertebral disc space. In 1956, a summary of their oral presentation was published, and a subsequent paper-an illustrated description of the technique and the details of a larger case series with a 3.5-year follow-up period-followed in 1958. The list of authors who first described ACDF should be completed by adding Dereymaeker's and Mulier's names. They made an important contribution to the practice of spinal surgery that was not generally known because they published in French. PMID- 29327973 TI - Fluoroscopy-guided percutaneous vertebroplasty for symptomatic loosened pedicle screw and instrumentation-associated vertebral fracture: an evaluation of initial experiences and technical note. AB - OBJECTIVE For symptomatic loosened pedicle screws and instrumentation-associated vertebral fracture, extensive surgery to remove the pedicle screws and extend the instrumentation, along with the reinsertion of more pedicle screws, is usually the treatment of choice. After such a surgery, however, similar complications will still be encountered. In this study the authors propose minimally invasive percutaneous cement augmentation under fluoroscopic guidance as a salvage procedure that eliminates the inherent risks of conventional extensive surgery. METHODS The records for 10 consecutive patients who had undergone fluoroscopy guided percutaneous cement augmentation for loosened pedicle screws and instrumentation-associated vertebral fractures were reviewed. The procedures, performed with the patients under local anesthesia, were basically similar to vertebroplasty except for the preexisting pedicle screws. The trocar was inserted under fluoroscopic guidance, along the path of the loosened pedicle screw, using the latero-pedicular approach. The visual analog scale (VAS) and radiographic images were used for clinical outcome assessment at 3, 6, and 12 months after surgery. RESULTS The mean follow-up period was 14.3 months. The mean postoperative hospital stay was 1.2 days. There was neither cement leakage into the posterior neuroforamen nor neurological complication in this series. The mean VAS score improved from 5.9 preoperatively to 2.5 at the last follow-up (p = 0.02). Eight patients obtained satisfactory results and 2 needed revision open surgery. CONCLUSIONS The results demonstrate that minimally invasive fluoroscopy guided percutaneous vertebroplasty is technically feasible and can be performed safely and effectively for symptomatic loosened pedicle screws and instrumentation-associated vertebral fracture. PMID- 29327974 TI - The FDA and the US direct-to-consumer marketplace for stem cell interventions: a temporal analysis. AB - Hundreds of businesses in the US currently advertise a wide range of non-US FDA approved stem cell interventions. Here we present a novel systematic temporal analysis of US companies engaged in direct-to-consumer marketing of putative stem cell treatments. Between 2009 and 2014, the number of new US stem cell businesses with websites grew rapidly, at least doubling on average every year. From 2014 to 2016, approximately 90-100 new stem cell business websites appeared per year. In contrast, from 2012 to the present, regulatory activity in the form of FDA warning letters has been limited. These data point to a problematic disconnect between a rapidly expanding US direct-to-consumer stem cell industry and limited FDA oversight of this marketplace. More consistent, timely and effective FDA actions are urgently needed. PMID- 29327975 TI - Impact of CYP2D6 on venlafaxine metabolism in Trinidadian patients with major depressive disorder. AB - AIM: This study aimed to assess the impact of CYP2D6 and CYP2C19 variation on venlafaxine (VEN) at steady state in patients from Trinidad and Tobago of Indian and African descent with major depressive disorder. PATIENTS & METHODS: Patients were phenotyped with dextromethorphan, genotyped for CYP2D6 and CYP2C19, and metabolic ratios for VEN obtained at 2-week intervals. RESULTS: Of 61 patients, 55 were genotyped and phenotyped and 47 completed 8 weeks of VEN treatment. The majority of patients had metabolic ratios for VEN that were consistent with those for dextromethorphan and genotype-predicted phenotype using activity scores. One subject presented with a novel no-function allele, CYP2D6*99. No correlations were observed with CYP2C19 genotype. CONCLUSION: CYP2D6 genotype analysis provides valuable information to individualize drug therapy with VEN. PMID- 29327976 TI - Endoscopic Treatment of Transesophageal Echocardiography-Induced Esophageal Perforation. AB - BACKGROUND: Perforation of the esophagus is the most severe complication of transesophageal echocardiography (TEE) and can lead to mediastinitis, pleural empyema, or peritonitis. Currently, the majority of patients receive operative treatment with only 6% treated endoscopically. We report our experience with endoscopic and conservative approaches. METHODS: We retrospectively reviewed all patients treated for esophageal perforation and included all patients with perforation caused by TEE. All patients with perforation of the esophagus by TEE probe underwent conservative or endoscopic treatment, drainage of pleural and mediastinal retentions, and adjusted to antibiotic therapy. RESULTS: From January 2004 to December 2014 a total of 109 patients were treated for esophageal perforation in our department. In 6 patients (5.5%) the perforation was caused by TEE. Location was cervical and midthoracic in 2 and 4 cases, respectively. All patients underwent successful endoscopic treatment and no further surgical procedure, such as esophageal suture or resection was necessary. The mean time between TEE and therapy of the perforation was 7.3 days. In all patients closure of the leakage could be achieved within 30 days. Mortality rate was 0%. CONCLUSIONS: Esophageal perforations caused by TEE are typically small, in the cervical and mid esophagus, and minimally contaminated. These are good prognostic factors for successful endoscopic treatment with preservation of the esophagus. Operative treatment should only be considered in cases of failed endoscopic treatment. PMID- 29327977 TI - Status and Challenges of Predicting and Diagnosing Sepsis in Burn Patients. AB - Burns are a common form of trauma that account for more than 300,000 deaths each year worldwide. Survival rates have improved over the past decades because of improvements in nutritional and fluid support, burn wound care, and infection control practices. Death, however, remains unacceptably high. The primary cause of death has changed over the last decades from anoxic causes to now predominantly infections and sepsis. Sepsis and septic complications are not only major contributors to poor outcomes, but they further result in longer hospital stay and higher healthcare costs. Despite the importance of infections and sepsis, the diagnosis and prediction remain a major challenge. To date, no clear diagnostic criteria or predictive formula exist that can predict reliably the occurrence of sepsis and infections. This review will highlight and discuss current definitions and criteria for diagnosis as well as predictive biomarkers of sepsis in patients with burns. It will also present the diagnostic tools employed, such as procalcitonin, C-reactive protein, and cytokines. We will discuss the benefits and shortcomings of different treatment modalities in the context of sepsis prevention. Last, we identify new therapeutic strategies for sepsis prediction and present future considerations to prevent sepsis in patients with burns. Minimizing and preventing septic complications through early detection would significantly benefit patients and necessitate continued research to unravel new biomarkers and mechanisms. Subsequent studies need to take a fresh perspective and consider the implementation of patient-centered therapeutic strategies. PMID- 29327978 TI - In Vivo CYP3A Activity in Palliative Care Patients: Study Protocol for a Single Arm Prospective Trial. AB - BACKGROUND: Drug interactions are a common cause for escalation of debilitating symptoms in palliative care patients. CYP3A is the most relevant CYP enzyme in humans involved in metabolism of about half of all available pharmaceuticals. OBJECTIVE: To increase knowledge about the CYP3A enzyme and the impact of drug interactions on its activity to improve dosing in palliative care patients. DESIGN: The prospective clinical trial uses a secure method of analyzing CYP3A activity in humans: Administration of a marker substance followed by the determination of its blood concentrations as well as the concentrations of its metabolite at certain points of time and corresponding metabolic clearance calculations. SETTING: The ongoing trial is carried out at a palliative care unit under real-life clinical conditions. MEASUREMENTS: A four-hour pharmacokinetic profile after oral administration of the marker substance (microdose of midazolam) will be obtained from each enrolled patient. Plasma concentrations of midazolam and its primary metabolite will be quantified by mass spectrometry techniques. CYP3A activity will be calculated as partial metabolic clearance from a limited sampling area under the curve. All other drugs taken by the participating patients will be considered as well as recent blood test results and the patients' diagnoses. CONCLUSIONS: This is the first prospective study dealing with drug metabolism in patients on a palliative care unit. The trial is based on reliable and established methods aiming to provide improved dosing regimens and thus optimize pharmacological therapies in this specialty. PMID- 29327979 TI - The General Motor Ability Hypothesis: An Old Idea Revisited. AB - While specific motor abilities have become a popular explanation for motor performance, the older, alternate notion of a general motor ability should be revisited. Current theories lack consensus, and most motor assessment tools continue to derive a single composite score to represent motor capacity. In addition, results from elegant statistical procedures such as higher order factor analyses, cluster analyses, and Item Response Theory support a more global motor ability. We propose a contemporary model of general motor ability as a unidimensional construct that is emergent and fluid over an individual's lifespan, influenced by both biological and environmental factors. In this article, we address the implications of this model for theory, practice, assessment, and research. Based on our hypothesis and Item Response Theory, our Lifespan Motor Ability Scale can identify motor assessment tasks that are relevant and important across varied phases of lifespan development. PMID- 29327980 TI - Effects of Endoscopic Thoracic Sympathectomy on Raynaud's Disease. AB - INTRODUCTION: Raynaud's disease is a disorder that is characterized by attacks of pain, cyanosis, redness, and numbness in the upper extremities caused by vasospasm of digital arteries due to cold or emotional stress. We aimed at demonstrating our experiences with endoscopic thoracic sympathectomy (ETS) in the treatment of Raynaud's disease. METHODS: From 48 patients who underwent ETS for various reasons at our department between January 2014 and January 2015, we reviewed 9 patients with Raynaud's disease (18.7%) with respect to their demographic characteristics such as gender and age, postoperative complications, short-term results, side effects, recurrence of symptoms, and long-terms results. RESULTS: The symptoms and findings reappeared and the number and dosage of the drugs used returned to their preoperative levels in 66.6% of the patients at month 6, and in all patients except 1 at the end of the 1st year. CONCLUSION: ETS should be considered an ultimate choice for patients with Raynaud's disease who have treatment-resistant severe symptoms and serious complications, disturbed social and daily lives, and impaired quality of life, and all patients should be properly informed before the surgery about the possibility of a high rate of recurrence. PMID- 29327982 TI - Communicating Your Research with Social Media: A Practical Guide to Using Blogs, Podcasts, Data Visualisations and Video, by Amy Mollett, Cheryl Brumley, Chris Gilson, and Sierra Williams. PMID- 29327981 TI - HIV/AIDS Outreach: Curriculum Development and Skills Training to Health and Information Professionals. AB - With funding from the National Library of Medicine HIV/AIDS Community Information Outreach Program (ACIOP), librarians at the University of Florida Health Sciences Libraries partnered with university and community groups to facilitate collaboration, develop new information resources, develop information-seeking skills, and raise general awareness surrounding HIV/AIDS risks, prevention, and treatment. This article describes the skills development elements of the project, including development and implementation of an HIV/AIDS information resource curriculum for health care providers, social services professionals, and public librarians within the project's partner organizations. PMID- 29327984 TI - Taking the Pulse of the University of Tennessee Medical Center's Health Literacy Knowledge. AB - Low health literacy is well documented in East Tennessee. Before addressing the issue, librarians at the Preston Medical Library, University of Tennessee Medical Center in Knoxville, Tennessee, conducted a needs assessment of hospital staff to determine their knowledge of health literacy and the need for training. As a follow-up, library staff conducted training sessions for nurses through classes, small group meetings, and staff huddles. The result is an increased dialogue of health literacy at the hospital, along with new research projects, a forum, and a summit meeting. PMID- 29327983 TI - Serving Community Faculty Through a Dedicated Liaison. AB - Community-based medical schools rely heavily on volunteer faculty to provide medical education. Volunteer faculty consist of health care professionals, primarily physicians, who commit to educating medical students and residents. While these volunteer faculty are typically unpaid, many medical schools provide some benefits to them for volunteering their time. One such benefit, although rarely noted in library or medical education literature, is access to academic medical library resources and services. This article highlights a library services liaison model dedicated to the support of volunteer faculty at a community-based medical school. PMID- 29327985 TI - Effective Difficult Conversations: A Step-By-Step Guide, by Catherine B. Soehner and Ann Darling. PMID- 29327986 TI - Marketing for Special and Academic Libraries: A Planning and Sourcebook, by Valerie S. Gordon and Patricia C. Higginbottom. PMID- 29327987 TI - OSTMED.DR(r), an Osteopathic Medicine Digital Library. AB - The OSTMED.DR(r) database provides access to both citation and full-text osteopathic literature, including the Journal of the American Osteopathic Association. Currently, it is a free database searchable using basic and advanced search features. PMID- 29327988 TI - Alexa, Siri, Cortana, and More: An Introduction to Voice Assistants. AB - Voice assistants are software agents that can interpret human speech and respond via synthesized voices. Apple's Siri, Amazon's Alexa, Microsoft's Cortana, and Google's Assistant are the most popular voice assistants and are embedded in smartphones or dedicated home speakers. Users can ask their assistants questions, control home automation devices and media playback via voice, and manage other basic tasks such as email, to-do lists, and calendars with verbal commands. This column will explore the basic workings and common features of today's voice assistants. It will also discuss some of the privacy and security issues inherent to voice assistants and some potential future uses for these devices. As voice assistants become more widely used, librarians will want to be familiar with their operation and perhaps consider them as a means to deliver library services and materials. PMID- 29327989 TI - Making It Work for Everyone: An Evolving Reference Service. AB - At an academic health science center, librarians identified problems, weaknesses, and strengths in reference services. The on-call reference schedule was discontinued and a question flowchart was developed for circulation staff. Only research questions were referred to librarians, who would respond if available. Circulation staff perceived the unscheduled, voluntary model was not working well for the patrons or the staff. After two months, the schedule was reinstated with a hybrid version of the previous on-call format. In the process of changing the service model, the library staff also underwent a cultural change. PMID- 29327991 TI - A Clinical Librarian Embedded in Medical Education: Patient-Centered Encounters for Preclinical Medical Students. AB - Adding patient encounters and simulation to the preclinical years of medical school is becoming increasingly popular. This article describes the creation of active learning opportunities by a clinical librarian that are aimed at training preclinical students through the use of simulated patient scenarios. Scenarios for second-year students walk them through the evidence-based resources needed in clinical years and beyond through a standardized patient encounter. Scenarios for first-year students involve role-play of cases where the patient and physician bring contrasting ideas to the outpatient interaction. All scenarios are carried out under the guidance of a clinician and librarian. PMID- 29327992 TI - DigitalHub: A Repository Focused on the Future. AB - The DigitalHub scholarly repository was developed and launched at the Galter Health Sciences Library for the Feinberg School of Medicine and the greater Northwestern Medicine community. The repository was designed to allow scholars the ability to create, share, and preserve a range of citable digital outputs. This article traces the evolution of DigitalHub's development and engagement activities, highlighting project challenges, innovations, success stories, and the team-based approach that was employed to successfully achieve project goals. PMID- 29327993 TI - Managing a Biomedical Library's Instruction Program: Redefining Scope. AB - The National Institutes of Health (NIH) library instruction program provides training services to staff, clinicians, and researchers across NIH and several Department of Health and Human Services (HHS) operating divisions. The audience, training needs, and training topics are diverse and constantly changing. The NIH library has developed several new services and class topics to meet the needs of its NIH and HHS communities. Context, strategies, and future directions for the NIH library instruction program are described. PMID- 29327994 TI - The Medical Library Association Guide to Data Management for Librarians, edited by Lisa Federer. PMID- 29327996 TI - Letter to the Editor. Tumors of the fourth ventricle. PMID- 29327995 TI - The Impact of Library Tutorials on the Information Literacy Skills of Occupational Therapy and Physical Therapy Students in an Evidence-Based Practice Course: A Rubric Assessment. AB - This study measures how online library instructional tutorials implemented into an evidence-based practice course have impacted the information literacy skills of occupational and physical therapy graduate students. Through a rubric assessment of final course papers, this study compares differences in students' search strategies and cited sources pre- and post-implementation of the tutorials. The population includes 180 randomly selected graduate students from before and after the library tutorials were introduced into the course curriculum. Results indicate a statistically significant increase in components of students' searching skills and ability to find higher levels of evidence after completing the library tutorials. PMID- 29327997 TI - Mechanical thrombectomy in basilar artery occlusion: influence of reperfusion on clinical outcome and impact of the first-line strategy (ADAPT vs stent retriever). AB - OBJECTIVE Several randomized trials have been focused on patients with anterior circulation stroke, whereas few data on posterior circulation stroke are available. Thus, new mechanical thrombectomy (MT) strategies, including a direct aspiration first-pass technique (ADAPT), remain to be evaluated in basilar artery occlusion (BAO) patients. The authors here assessed the influence of reperfusion on outcome in BAO patients and examined whether ADAPT improves the reperfusion rate compared with stent retriever devices. METHODS Three comprehensive stroke centers prospectively collected individual data from BAO patients treated with MT. Baseline characteristics as well as radiographic and clinical outcomes were compared between the 2 MT strategies. The primary outcome measure was the rate of successful reperfusion, defined as a modified Thrombolysis in Cerebral Infarction (mTICI) grade of 2b-3. Favorable outcome was defined as a 90-day modified Rankin Scale score of 0-2. RESULTS Among the 100 adult patients included in the study, 46 were treated with first-line ADAPT (median age 61 years, IQR 53-71 years; stent-retriever rescue therapy was secondarily used in 12 [26.1%]) and 54 were treated with a primary stent retriever (median age 67 years, IQR 53-78 years). There was no difference in baseline characteristics between the 2 treatment groups, except for the rate of diabetes (19.6% vs 5.7%, respectively, p = 0.035). Successful reperfusion was achieved in 79% of the overall study sample. Overall, the rate of favorable outcome was 36.8% and 90-day all-cause mortality was 44.2%. Successful reperfusion positively impacted favorable outcome (OR 4.57, 95% CI 1.24-16.87, p = 0.023). A nonsignificant trend toward a higher successful reperfusion rate (unadjusted OR 2.56, 95% CI 0.90-7.29, p = 0.071) and a significantly higher rate of complete reperfusion (mTICI grade 3; unadjusted OR 2.59, 95% CI 1.14-5.86, p = 0.021) was found in the ADAPT group. The procedure duration was also significantly lower in the ADAPT group (median 45 minutes, IQR 34 to 62 minutes vs 56 minutes, IQR 40 to 90 minutes; p = 0.05), as was the rate of periprocedural complications (4.3% vs 25.9%, p = 0.003). Symptomatic intracranial hemorrhage (0.0% vs 4.0%, p = 0.51) and 90-day all-cause mortality (46.7% vs 42.0%, p = 0.65) were similar in the 2 groups. CONCLUSIONS Among BAO patients, successful reperfusion is a strong predictor of a 90-day favorable outcome, and the choice of ADAPT as the first-line strategy achieves a significantly higher rate of complete reperfusion with a shorter procedure duration. PMID- 29327998 TI - A novel scale for describing visual outcomes in patients following resection of lesions affecting the optic apparatus: the Unified Visual Function Scale. AB - OBJECTIVE Historically, descriptions of visual acuity and visual field change following intracranial procedures have been very rudimentary. Clinicians and researchers have often used basic descriptions, such as "improved," "worsened," and "unchanged," to describe outcomes following resections of tumors affecting the optic apparatus. These descriptors are vague, difficult to quantify, and challenging to apply in a clinical perspective. Several groups have attempted to combine visual acuity and visual fields into a single assessment score, but these are not user-friendly. The authors present a novel way to describe a patient's visual function as a combination of visual acuity and visual field assessment that is simple to use and can be used by surgeons and researchers to gauge visual outcomes following tumor resection. METHODS Visual acuity and visual fields were combined into 3 categories designed around the definitions of legal blindness and fitness to drive in Canada. The authors then applied the scale (the Unified Visual Function Scale, or UVFS) to their previously published case series of perisellar meningiomas to document and test overall visual outcomes for patients undergoing tumor resection. The results were compared with previously documented visual loss scales in the literature. RESULTS Using the UVFS the authors were able to capture the overall visual change; the scale was sensitive enough to define the overall visual improvement or worsening quantitatively, using categories that are clinically relevant and understandable. CONCLUSIONS The UVFS is a robust way to assess a patient's vision, combining visual fields and acuity. The implementation of pre- and postoperative assessment is sensitive enough to assess overall change while also providing clinically relevant information for surgeons, and allows for comparisons between treatment groups. PMID- 29327999 TI - Declining complication rates with flow diversion of anterior circulation aneurysms after introduction of the Pipeline Flex: analysis of a single institution series of 568 cases. AB - OBJECTIVE The second-generation Pipeline embolization device (PED), Flex, has several design upgrades, including improved opening and the ability to be resheathed, in comparison with the original device (PED classic). The authors hypothesized that Flex is associated with a lower rate of major complications. METHODS A prospective, IRB-approved, single-institution database was analyzed for all patients with anterior circulation aneurysms treated by flow diversion. The PED classic was used from August 2011 to January 2015, and the Pipeline Flex has been used since February 2015. RESULTS A total of 568 PED procedures (252 classic and 316 Flex) were performed for anterior circulation aneurysms. The average aneurysm size was 6.8 mm. Patients undergoing treatment with the Flex device had smaller aneurysms (p = 0.006) and were more likely to have undergone previous treatments (p = 0.001). Most aneurysms originated along the internal carotid artery (89% classic and 75% Flex) but there were more anterior cerebral artery (18%) and middle cerebral artery (7%) deployments with Flex (p = 0.001). Procedural success was achieved in 96% of classic and 98% of Flex cases (p = 0.078). Major morbidity or death occurred in 3.5% of cases overall: 5.6% of classic cases, and 1.9% of Flex cases (p = 0.019). On multivariate logistic regression, predictors of major complications were in situ thrombosis (OR 4.3, p = 0.006), classic as opposed to Flex device (OR 3.7, p = 0.008), and device deployment in the anterior cerebral artery or middle cerebral artery as opposed to the internal carotid artery (OR 3.5, p = 0.034). CONCLUSIONS Flow diversion of anterior circulation cerebral aneurysms is associated with an overall low rate of major complications. The complication rate is significantly lower since the introduction of the second-generation PED (Flex). PMID- 29328000 TI - Conscious sedation with dexmedetomidine compared with asleep-awake-asleep craniotomies in glioma surgery: an analysis of 180 patients. AB - OBJECTIVE Awake craniotomies have become a feasible tool over time to treat brain tumors located in eloquent regions. Different techniques have been applied in neurooncology centers. Both "asleep-awake-asleep" (asleep) and "conscious sedation" were used subsequently at the authors' neurosurgical department. Since 2013, the authors have only performed conscious sedation surgeries, predominantly using the alpha2-receptor agonist dexmedetomidine as the anesthetic drug. The aim of this study was to compare both mentioned techniques and evaluate the clinical use of dexmedetomidine in the setting of awake craniotomies for glioma surgery. METHODS The authors retrospectively analyzed patients who underwent operations either under the asleep condition using propofol-remifentanil or under conscious sedation conditions using dexmedetomidine infusions. In the asleep group patients were intubated with a laryngeal mask and extubated for the assessment period. Adverse events, as well as applied drugs with doses and frequency of usage, were recorded. RESULTS From 224 awake surgeries between 2009 and 2015, 180 were performed for the resection of gliomas and included in the study. In the conscious sedation group (n = 75) significantly fewer opiates (p < 0.001) and vasoactive (p < 0.001) and antihypertensive (p < 0.001) drugs were used in comparison with the asleep group (n = 105). Furthermore, the postoperative length of stay (p < 0.001) and the surgical duration (p < 0.001) were significantly lower in the conscious sedation group. CONCLUSIONS Use of dexmedetomidine creates excellent conditions for awake surgeries. It sedates moderately and acts as an anxiolytic. Thus, after ceasing infusion it enables quick and reliable clinical neurological assessment of patients. This might lead to reducing the amount of administered antihypertensive and vasoactive drugs as well as the length of hospitalization, while likely ensuring more rapid surgery. PMID- 29328001 TI - Gamma Knife radiosurgery of saccular aneurysms in a rabbit model. AB - OBJECTIVE Intracranial aneurysms are vascular abnormalities associated with neurological morbidity and mortality due to risk of rupture. In addition, many aneurysm treatments have associated risk profiles that can preclude the prophylactic treatment of asymptomatic lesions. Gamma Knife radiosurgery (GKRS) is a standard treatment for trigeminal neuralgia, tumors, and arteriovenous malformations. Aneurysms associated with arteriovenous malformations have been noted to resolve after treatment of the malformation. The aim of this study was to determine the efficacy of GKRS treatment in a saccular aneurysm animal model. METHODS Aneurysms were surgically produced using an elastase-induced aneurysm model in the right common carotid artery of 10 New Zealand white rabbits. Following initial observation for 4 years, each rabbit aneurysm was treated with a conformal GKRS isodose of 25 Gy to the 50% margin. Longitudinal MRI studies obtained over 2 years and terminal measures obtained at multiple time points were used to track aneurysm size and shape index modifications. RESULTS Aneurysms did not rupture or involute during the observation period. Whole aneurysm and blood volume averages decreased with a linear trend, at rates of 1.7% and 1.6% per month, respectively, over 24 months. Aneurysm wall percent volume increased linearly at a rate of 0.3% per month, indicating a relative thickening of the aneurysm wall during occlusion. Nonsphericity of the average volume, aspect ratio, and isoperimetric ratio of whole aneurysm volume all remained constant. Histopathological samples demonstrated progressive reduction in aneurysm size and wall thickening, with subintimal fibrosis. Consistent shape indices demonstrate stable aneurysm patency and maintenance of minimal rupture risk following treatment. CONCLUSIONS The data indicate that GKRS targeted to saccular aneurysms is associated with histopathological changes and linear reduction of aneurysm size over time. The results suggest that GKRS may be a viable, minimally invasive treatment option for intracranial aneurysm obliteration. PMID- 29328002 TI - Dexamethasone-mediated oncogenicity in vitro and in an animal model of glioblastoma. AB - OBJECTIVE Dexamethasone, a known regulator of mesenchymal programming in glioblastoma (GBM), is routinely used to manage edema in GBM patients. Dexamethasone also activates the expression of genes, such as CEBPB, in GBM stem cells (GSCs). However, the drug's impact on invasion, proliferation, and angiogenesis in GBM remains unclear. To determine whether dexamethasone induces invasion, proliferation, and angiogenesis in GBM, the authors investigated the drug's impact in vitro, in vivo, and in clinical information derived from The Cancer Genome Atlas (TCGA) cohort. METHODS Expression profiles of patients from the TCGA cohort with mesenchymal GBM (n = 155) were compared with patients with proneural GBM by comparative marker selection. To obtain robust data, GSCs with IDH1 wild-type (GSC3) and with IDH1 mutant (GSC6) status were exposed to dexamethasone in vitro and in vivo and analyzed for invasion (Boyden chamber, human-specific nucleolin), proliferation (Ki-67), and angiogenesis (CD31). Ex vivo tumor cells from dexamethasone-treated and control mice were isolated by fluorescence activated cell sorting and profiled using Affymetrix chips for mRNA (HTA 2.0) and microRNAs (miRNA 4.0). A pathway analysis was performed to identify a dexamethasone-regulated gene signature, and its relationship with overall survival (OS) was assessed using Kaplan-Meier analysis in the entire GBM TCGA cohort (n = 520). RESULTS The mesenchymal subgroup, when compared with the proneural subgroup, had significant upregulation of a dexamethasone-regulated gene network, as well as canonical pathways of proliferation, invasion, and angiogenesis. Dexamethasone-treated GSC3 demonstrated a significant increase in invasion, both in vitro and in vivo, whereas GSC6 demonstrated a modest increase. Furthermore, dexamethasone treatment of both GSC3 and GSC6 lines resulted in significantly elevated cell proliferation and angiogenesis in vivo. Patients with mesenchymal GBM had significant upregulation of dexamethasone-regulated pathways when compared with patients with proneural GBM. A prognostic (p = 0.0007) 33-gene signature was derived from the ex vivo expression profile analyses and used to dichotomize the entire TCGA cohort by high (median OS 12.65 months) or low (median OS 14.91 months) dexamethasone signature. CONCLUSIONS The authors present evidence that furthers the understanding of the complex effects of dexamethasone on biological characteristics of GBM. The results suggest that the drug increases invasion, proliferation, and angiogenesis in human GSC-derived orthotopic tumors, potentially worsening GBM patients' prognoses. The authors believe that careful investigation is needed to determine how to minimize these deleterious dexamethasone-associated side effects in GBM. PMID- 29328003 TI - Characterizing the type and location of intracranial abnormalities in mild traumatic brain injury. AB - OBJECTIVE The incidence of intracranial abnormalities after mild traumatic brain injury (TBI) varies widely across studies. This study describes the characteristics of intracranial abnormalities (acute/preexisting) in a large representative sample of head-injured patients who underwent CT imaging in an emergency department. METHODS CT scans were systematically analyzed/coded in the TBI Common Data Elements framework. Logistic regression modeling was used to quantify risk factors for traumatic intracranial abnormalities in patients with mild TBIs. This cohort included all patients who were treated at the emergency department of the Tampere University Hospital (between 2010 and 2012) and who had undergone head CT imaging after suffering a suspected TBI (n = 3023), including 2766 with mild TBI and a reference group with moderate to severe TBI. RESULTS The most common traumatic lesions seen on CT scans obtained in patients with mild TBIs and those with moderate to severe TBIs were subdural hematomas, subarachnoid hemorrhages, and contusions. Every sixth patient (16.1%) with mild TBI had an intracranial lesion compared with 5 of 6 patients (85.6%) in the group with moderate to severe TBI. The distribution of different types of acute traumatic lesions was similar among mild and moderate/severe TBI groups. Preexisting brain lesions were a more common CT finding among patients with mild TBIs than those with moderate to severe TBIs. Having a past traumatic lesion was associated with increased risk for an acute traumatic lesion but neurodegenerative and ischemic lesions were not. A lower Glasgow Coma Scale score, male sex, older age, falls, and chronic alcohol abuse were associated with higher risk of acute intracranial lesion in patients with mild TBI. CONCLUSIONS These findings underscore the heterogeneity of neuropathology associated with the mild TBI classification. Preexisting brain lesions are common in patients with mild TBI, and the incidence of preexisting lesions increases with age. Acute traumatic lesions are fairly common in patients with mild TBI; every sixth patient had a positive CT scan. Older adults (especially men) who fall represent a susceptible group for acute CT positive TBI. PMID- 29328004 TI - Thoracolumbar Injury Classification and Severity Score in children: a reliability study. AB - OBJECTIVE There are many classification systems for injuries of the thoracolumbar spine. The recent Thoracolumbar Injury Classification and Severity Score (TLICS) has been shown to be a reliable tool for adult patients. The aim of this study was to assess the reliability of the TLICS system in pediatric patients. The validity of the TLICS system is assessed in a companion paper. METHODS The medical records of pediatric patients with acute, traumatic thoracolumbar fractures at a single Level 1 trauma center were retrospectively reviewed. A TLICS was calculated for each patient using CT and MRI, along with the neurological examination recorded in the patient's medical record. TLICSs were compared with the type of treatment received. Five raters scored all patients separately to assess interrater reliability. RESULTS TLICS calculations were completed for 81 patients. The mean patient age was 10.9 years. Girls represented 51.8% of the study population, and 80% of the study patients were white. The most common mechanisms of injury were motor vehicle accidents (60.5%), falls (17.3%), and all-terrain vehicle accidents (8.6%). The mean TLICS was 3.7 +/- 2.8. Surgery was the treatment of choice for 33.3% of patients. The agreement between the TLICS-suggested treatment and the actual treatment received was statistically significant (p < 0.0001). The interrater reliability of the TLICS system ranged from moderate to very good, with a Fleiss' generalized kappa (kappa) value of 0.69 for the TLICS treatment suggestion among all patients; however, interrater reliability decreased when MRI was used to contribute to the TLICS. The kappa value decreased from 0.73 to 0.57 for patients with CT only vs patients with CT/MRI or MRI only, respectively (p < 0.0001). Furthermore, the agreement between suggested treatment and actual treatment was worse when MRI was used as part of injury assessment. CONCLUSIONS The TLICS system demonstrates good interrater reliability among physicians assessing thoracolumbar fracture treatment in pediatric patients. Physicians should be cautious when using MRI to aid in the surgical decision-making process. PMID- 29328005 TI - A novel use of the NeuroBlate SideFire probe for minimally invasive disconnection of a hypothalamic hamartoma in a child with gelastic seizures. AB - The authors describe the case of a 22-month-old boy who presented with gelastic seizures and developmental delay. Magnetic resonance imaging and video electroencephalography monitoring revealed a primarily intraventricular hypothalamic hamartoma and gelastic seizures occurring 20-30 times daily. The patient was treated with various regimens of antiepileptic medications for 16 months, but the seizures remained medically intractable. At 3 years of age, he underwent stereotactic laser ablation with an aim of disconnection of the lesion. The procedure was performed with the NeuroBlate SideFire probe. To the authors' knowledge, this is the first reported use of this technology for this procedure and serves as proof of concept. There were no perioperative complications, and 2 years postprocedure, the patient remains seizure free with marked behavioral and cognitive improvements. PMID- 29328006 TI - Parent/guardian knowledge regarding implanted shunt type, setting, and symptoms of malfunction/infection. AB - OBJECTIVE Patients with shunts often interact with providers distant from their primary hospital, making it important that the parent(s)/guardian(s) is well versed in the type of shunt implanted and symptoms of malfunction/infection. This is particularly important with magnetic-sensitive programmable valves, as the use of MRI becomes more prevalent. METHODS Over a 6-month period, primary caregivers of 148 consecutive patients who received shunts were prospectively administered questionnaires at clinic visits. Caregivers were asked to do the following: 1) identify shunt valve name, type, and setting if applicable; 2) list symptoms of shunt malfunction/infection; and 3) indicate whether they had access to references regarding shunt type/setting, booklets from the Hydrocephalus Association, and quick reference cards with symptoms of shunt malfunction/infection. One cohort of caregivers (n = 75) was asked to carry informational cards with shunt valve/setting information (group I); this cohort was compared with another subgroup of caregivers (n = 73) not carrying cards (group II). RESULTS The mean (+/- SD) age of patients at implantation/revision was 3.71 +/- 4.91 years, and the age at follow-up was 6.12 +/- 5.4 years. The average time from surgery to administration of the questionnaire was 2.38 +/- 3.22 years. There were 86 new shunt insertions and 62 revisions. One hundred twenty-eight caregivers (87%) could identify the type of valve (programmable vs nonprogrammable). On the other hand, only 72 caregivers (49%) could identify the valve name. Fifty-four of 73 (74%) caregivers of patients who had shunts with programmable valves could correctly identify the valve setting. One hundred caregivers (68%) had a copy of the Hydrocephalus Association booklet, and 103 (70%) had quick reference cards. Eighty caregivers (54%) had references on shunt type/setting. Most caregivers (127 [86%]) could name >= 3 signs/symptoms of shunt malfunction, with vomiting (61%), headache (49%), and sleeps more/lethargic (35%) most frequently reported. Caregivers of patients in group I were more likely to have cards with symptoms of shunt infection or malfunction (p = 0.015); have information cards regarding shunt type/setting (p < 0.001); and correctly identify valve type (p = 0.001), name (p < 0.001), and setting if programmable (p = 0.0016). There were no differences in ability to list symptoms of shunt malfunction or infection (p = 0.8812) or in access to Hydrocephalus Association booklets (p = 0.1288). There were no significant demographic differences between the groups, except that group I patients had a shorter time from surgery to last follow-up (1.66 vs 3.17 years; p = 0.0001). CONCLUSIONS Education regarding the care of patients with shunts by providing written cards with shunt type/setting and access to reference materials seems to be effective. Developing plans for guided instruction with assessment in the clinic setting of a caregiver's knowledge is important for patient safety. PMID- 29328007 TI - [Prophylactic hydration to protect renal function from intravascular iodinated contrast material in patients at high risk of contrast-induced nephropathy (AMACING): a prospective, randomised, phase 3, controlled, open-label, non inferiority trial]. AB - BACKGROUND: Intravenous saline is recommended in clinical practice guidelines as the cornerstone for preventing contrast-induced nephropathy in patients with compromised renal function. However, clinical-effectiveness and cost effectiveness of this prophylactic hydration treatment in protecting renal function has not been adequately studied in the population targeted by the guidelines, against a group receiving no prophylaxis. This was the aim of the AMACING trial. METHODS: AMACING is a prospective, randomised, phase 3, parallel group, open-label, non-inferiority trial of patients at risk of contrast-induced nephropathy according to current guidelines. High-risk patients (with an estimated glomerular filtration rate [eGFR] of 30-59 mL per min/1.73 m2) aged 18 years and older, undergoing an elective procedure requiring iodinated contrast material administration at Maastricht University Medical Centre, the Netherlands, were randomly assigned (1:1) to receive intravenous 0.9% NaCl or no prophylaxis. We excluded patients with eGFR lower than 30 mL per min/1.73 m2, previous dialysis, or no referral for intravenous hydration. Randomisation was stratified by predefined risk factors. The primary outcome was incidence of contrast-induced nephropathy, defined as an increase in serum creatinine from baseline of more than 25% or 44 MUmol/L within 2-6 days of contrast exposure, and cost effectiveness of no prophylaxis compared with intravenous hydration in the prevention of contrast-induced nephropathy. We measured serum creatinine immediately before, 2-6 days, and 26-35 days after contrast-material exposure. Laboratory personnel were masked to treatment allocation. Adverse events and use of resources were systematically recorded. The non-inferiority margin was set at 2.1%. Both intention-to-treat and per-protocol analyses were done. This trial is registered with ClinicalTrials.gov, number NCT02106234. FINDINGS: Between June 17, 2014, and July 17, 2016, 660 consecutive patients were randomly assigned to receive no prophylaxis (n=332) or intravenous hydration (n=328). 2-6 day serum creatinine was available for 307 (92%) of 332 patients in the no prophylaxis group and 296 (90%) of 328 patients in the intravenous hydration group. Contrast induced nephropathy was recorded in eight (2.6%) of 307 non-hydrated patients and in eight (2.7%) of 296 hydrated patients. The absolute difference (no hydration vs hydration) was -0.10% (one-sided 95% CI -2.25 to 2.06; one-tailed p=0.4710). No hydration was cost-saving relative to hydration. No haemodialysis or related deaths occurred within 35 days. 18 (5.5%) of 328 patients had complications associated with intravenous hydration. INTERPRETATION: We found no prophylaxis to be non-inferior and cost-saving in preventing contrast-induced nephropathy compared with intravenous hydration according to current clinical practice guidelines. PMID- 29328008 TI - [Posttraumatic stress disorder: current insights in diagnostics, treatment and prevention]. AB - - Posttraumatic stress disorder (PTSD) is a psychiatric disorder that may develop after traumatic events.- PTSD is one of the most prevalent psychiatric disorders in the Netherlands, with an estimated lifetime prevalence of 7%.- Recurrent re experiencing of the traumatic event is the most characteristic PTSD symptom.- Recognition of PTSD may be hampered by the heterogeneous symptomatology, avoidance to talk about the trauma and highly frequent comorbid psychiatric and somatic comorbidity.- Feelings of guilt and shame may also influence reported trauma history.- First choice treatment for PTSD is trauma-focused psychotherapy, which may be combined with pharmacotherapy.- In case of severe acute posttraumatic stress symptoms after a recent trauma, it is recommended to start early trauma-focused psychotherapy.- Neurobiological findings are increasingly applied in novel interventions to improve the treatment and prevention of PTSD. PMID- 29328009 TI - [A verrucous plaque on the lower leg]. AB - A 10-year-old boy presented with an asymptomatic, congenital, dark brown coloured, well circumscribed, verrucous, hyperkeratotic plaque on his left leg. This was diagnosed as verrucous haemangioma. PMID- 29328010 TI - [Guideline 'The chronically ill and work']. AB - - The guideline 'The chronically ill and work' gives insight into disease overarching factors and interventions that can promote or impede the participation in the work process of workers and those looking for work who have a chronic condition. - In particular, the guideline focuses on the role taken on by workers or those looking for work themselves during the process of keeping or resuming work. - The guideline gives recommendations for the daily practice of healthcare providers which are based on knowledge from disease-specific guidelines, the international literature and the experiences of healthcare providers, and workers and those looking for work with a chronic condition. PMID- 29328011 TI - [Is there quality of life with locked-in syndrome?] AB - A 57-year-old man developed a locked-in state due to a brain stem stroke. He communicated through eye movements. The team suggested treatment should be discontinued, as there was no perspective of improvement. The family was very upset because they experienced sufficient quality of life. We investigated what 'quality of life' means. The literature shows that severely ill and completely care-dependent patients may experience high quality of life; this is called the disability paradox. Patients and families evaluate quality of life by looking for positive things to live for. Some quality-of-life tests, however, understand quality of life as 'functionality'. Healthy people evaluate the situation of people living with handicaps more negatively than the handicapped themselves do. Practitioners may overlook the instability of patients' evaluations: responses and situations may shift. Quality of life as an outcome in clinical trials may be different for individual patients. These insights may improve communication. PMID- 29328012 TI - [A man with severe skin rash]. AB - A 31-year-old man visited the outpatient clinic Dermatology with an exacerbation of his atopic eczema. Since a few day vesicles and crusts had appeared and his eyelids were swollen. He was known to have eczema, for which he was treated with ciclosporin 200 mg 2 times a day (4 mg/kg per day) since four months. Under this treatment the eczema used to be under control. There were no neurological symptoms or vision problems. At physical examination we saw erythematous papules, vesicles, superficial erosions and crusts on all body regions, but especially on the trunk and in the main neck region. The patient was diagnosed with eczema herpeticum and he was treated with intravenous aciclovir 1000 mg 3 times a day (10 mg/kg 3 dd) and flucloxacillin 1000 mg 4 times a day for seven days. PMID- 29328013 TI - [A woman with a painful and enlarged tongue]. AB - A 53-year-old woman presented with painful macroglossia and periorbital papules. Based on this clinical features and biopsies the diagnosis of nodular amyloidosis was established. Further analysis revealed that multiple myeloma was the underlying hematological disorder. PMID- 29328014 TI - [Innovation in transport of critical care patients]. AB - The differentiation of specialist care means that not every hospital can meet specific care requirements. Because of this, frequent transport of critical care patients is necessary. In most circumstances, regular ambulance transport is used, either with or without an accompanying physician. In some cases, a mobile intensive care unit (MICU) can be deployed. However, the MICU is not 24/7 operational in our area and significant waiting times can occur. Additionally, space and resources in a regular ambulance are limited. We have therefore developed a new protocol, covering the transport of critical care patients. In this, we use a special trolley with built-in advanced devices, such as a respiratory apparatus, in combination with an adapted ambulance. By using this protocol we minimize time loss and guarantee safe and patient-centred transport. PMID- 29328015 TI - [A young man with extensive skin abnormalities]. AB - A 26-year-old man who has sex with men visited the STI clinic because of increasing skin abnormalities since four months. The patient had macular skin lesions on his penis and scrotum, condylomata lata in the anal region, cutaneous lesions on the feet, and a widespread papular rash. A secondary stage of syphilis was diagnosed. PMID- 29328016 TI - [The yips: a movement disorder among golfers]. AB - BACKGROUND: Although the yips occurs commonly in golfers, this neurological movement disorder is a relatively unknown phenomenon among physicians. CASE DESCRIPTION: A 47-year-old golf player developed a disturbing, neurological movement disorder that manifested when playing golf: the yips. These jerks occurred when putting, but not during practice rounds. The patient's father suffered from similar yips. CONCLUSION: The yips is a task-specific dystonia, which can also manifest in players of other sports. Multiple factors, such as genetic predisposition and anxiety seem to be involved in its pathophysiology. The disorder is relatively common among both professional and amateur golfers. The adverse impact can be big and a cure is yet to be found. PMID- 29328017 TI - [Hydration to prevent contrast-induced nephropathy]. AB - In 2007, a national guideline was issued in the Netherlands to prevent contrast induced nephropathy. This guideline recommended preventive hydration with 0.9% NaCl in patients with reduced estimated glomerular filtration rate (eGFR 30-69 ml/min/1.73 m2) prior to administration of contrast. The recent AMACING study compared hydration versus no hydration, and found that hydration did not prevent contrast-induced nephropathy but did lead to complications and higher costs. The latest 2017 guideline recommends hydration only for patients with eGFR < 30 ml/min/1.73 m2. Although this is an improvement, an even more recent study, PRESERVE, showed no differences in the incidence of contrast-induced nephropathy between sodium chloride, sodium bicarbonate, acetylcysteine, or placebo - even in patients with lower eGFRs (15-60 ml/min/1.73 m2) undergoing elective angiography. This raises the question whether preventive measures are only effective in patients with the highest risk, i.e. hospitalized patients with multiple risk factors undergoing emergency procedures. PMID- 29328018 TI - [A day in the life of a medical resident on the ward]. AB - OBJECTIVE: To investigate how internal medicine residents allocate their time during a hospital dayshift on the wards. DESIGN: Prospective observational cohort study (time and motion study). METHODS: Data were collected from 36 internal medicine residents working at the Internal Medicine Department of the Academic Medical Centre in Amsterdam, the Netherlands. Trained observers monitored 22 residents using a newly developed smartphone-application, registering their dayshift activities (meetings and education, direct patient contact, administrative tasks, lunch/break, other) and location (workstation, conference room, ward and patient rooms, other). Data of 14 residents on work-related activities during after-hours in the hospital and at home were collected through a questionnaire. RESULTS: Residents were observed for a total of 210 hours. The average workday encompassed 9.5 hours. During this dayshift, residents spent an average of 38% of their time on administrative tasks, and 37% on interprofessional consultation and educational activities. Direct patient/family contact accounted for 13% of the workday. After the evening handover at 5 pm, on average another 80 minutes of work was performed in the hospital, of which 73 minutes (91%) entailed administration. At home, they spent on average another 52 minutes on patient care related work, of which 51 minutes (98%) consisted of administration. CONCLUSION: The internal medicine residents on the ward spend most of their dayshift on indirect patient care. This comprises mostly computer based administrative tasks. After the dayshift, many residents continue to work in their own time to finish remaining paperwork. Study limitations are the limited total number of monitored residents, the total observation time and possible self-report bias. PMID- 29328019 TI - Amygdala reactivity in ethnic minorities and its relationship to the social environment: an fMRI study. AB - BACKGROUND: Ethnic minority individuals have an increased risk of developing a psychotic disorder, particularly if they live in areas of ethnic segregation, or low own group ethnic density. The neurobiological mechanisms underlying this ethnic minority associated risk are unknown. We used functional MRI to investigate neural responses to faces of different ethnicity, in individuals of black ethnicity, and a control group of white British ethnicity individuals. METHODS: In total 20 individuals of black ethnicity, and 22 individuals of white British ethnicity underwent a 3T MRI scan while viewing faces of black and white ethnicity. Own group ethnic density was calculated from the 2011 census. Neighbourhood segregation was quantified using the Index of Dissimilarity method. RESULTS: At the within-group level, both groups showed greater right amygdala activation to outgroup faces. Between groups, the black ethnicity group showed greater right amygdala activation to white faces, compared to the white ethnicity group. Within the black ethnicity group, individuals living in areas of lower own group ethnic density showed greater right amygdala reactivity to white faces (r = -0.61, p = 0.01). CONCLUSIONS: This is the first time an increased amygdala response to white faces has been demonstrated in individuals of black ethnicity. In the black ethnicity group, correlations were observed between amygdala response and neighbourhood variables associated with increased psychosis risk. These results may have relevance for our understanding of the increased rates of paranoia and psychotic disorders in ethnic minority individuals. PMID- 29328022 TI - [ENDOMETRIOSIS: A NEW APPROACH TO ETIOLOGY AND PATHOGENESIS (REVIEW)]. AB - Endometriosis is a dyshormonal immune-dependent genetically determined disease, which appears as an endometrioid tissue that grows outside the uterine. Endometriosis is one of the most urgent problems of medicine. To date, new concepts of the endometriosis etiology and pathogenesis have been developed, but, despite their abundance, there is no unified theory. Genetic and epigenetic factors result in changes in an expression of aromatase, steroidogenic factor 1, and estrogen receptors are suggested to be the main cause of endometriosis. These changes lead to an active synthesis of various pro-inflammatory agents and a nerve growth factor, that are important in the development of pain syndrome. Also, changes in the progesterone receptor functioning and the local progesterone resistance development decrease the antiproliferative activity, apoptosis, and the anti-inflammatory substances level, as well as increase the prostaglandin, metalloproteinase activity, and level of hypoxia factors. In addition, there are shreds of evidence that endometriosis is associated with the risk of malignant tumors development, so new concepts for understanding these mechanisms are actively developing. Some of these mechanisms are discussed in this review. PMID- 29328023 TI - FEATURES OF FORMATION OF COLLATERAL CIRCULATION IN PATIENTS WITH SUBCLAVIAN STEAL SYNDROME. AB - To date in patients with subclavian steal syndrome diagnosis is only grade of stenosis or localization of occlusion described. Authors recommend to take into account also type of a collateral compensation of cerebral circulation for selection of an optimal treatment The objective of the research was to study the features of formation of collateral circulation in patients with subclavian steal syndrome. The authors described changes in the direction of blood flow in the extracranial vessels of 42 patients with subclavian steal syndrome. Latent subclavian steal syndrome was detected in 26.2% of patients, transient subclavian steal syndrome was found in 54.8% of patients, and a persistent course of the disease was observed in 19.9% of patients. Symptoms of vertebrobasilar insufficiency were detected in 26.6% of patients, and combination of chronic upper extremity ischemia and vertebrobasilar insufficiency was diagnosed in 73.8% of patients. When analyzing the features of collateral circulation in 64.3% of patients the extracranial compensatory mechanism was observed being provided by three main groups of collateral hemodynamic reallocation: the occipito-vertebral hemodynamic mechanism of compensation was detected in 38.1% of cases, the thyroid compensatory mechanism was found in 16.7% of cases, and the brain stem-occipital compensatory mechanism was observed in 9.5% of cases. In 35.7% of patients the intracranial compensatory mechanism was observed being provided by two main groups of collateral hemodynamic reallocation: the vertebro-vertebral compensatory mechanism was found in 21.4% of cases and cerebrobasilar compensatory mechanism was detected in 14.3% of cases. Consideration of the features of collateral circulation in patients with subclavian steal syndrome may serve as a prognostic criterion for selecting an optimal treatment tactics.Each of compensatory mechanisms has its own hemodynamic peculiarities. The occipito- vertebral compensatory mechanism has the most positive influence on the compensationof hemodynamic failure of the vertebrobasilar basin. PMID- 29328021 TI - The presynaptic ribbon maintains vesicle populations at the hair cell afferent fiber synapse. AB - The ribbon is the structural hallmark of cochlear inner hair cell (IHC) afferent synapses, yet its role in information transfer to spiral ganglion neurons (SGNs) remains unclear. We investigated the ribbon's contribution to IHC synapse formation and function using KO mice lacking RIBEYE. Despite loss of the entire ribbon structure, synapses retained their spatiotemporal development and KO mice had a mild hearing deficit. IHCs of KO had fewer synaptic vesicles and reduced exocytosis in response to brief depolarization; a high stimulus level rescued exocytosis in KO. SGNs exhibited a lack of sustained excitatory postsynaptic currents (EPSCs). We observed larger postsynaptic glutamate receptor plaques, potentially compensating for the reduced EPSC rate in KO. Surprisingly, large amplitude EPSCs were maintained in KO, while a small population of low-amplitude slower EPSCs was increased in number. The ribbon facilitates signal transduction at physiological stimulus levels by retaining a larger residency pool of synaptic vesicles. PMID- 29328024 TI - ENDOMETRIAL POLYPS IN WOMEN OF REPRODUCTIVE AGE: CLINICAL AND PATHOGENE-TIC VARIATIONS. AB - The aim of the study was to study the relationship between the morphofunctional characteristics of the endometrium, hormonal homeostasis and microbiocenosis of the reproductive system in patients with endometrial polyps. The study involved 130 patients aged 18-35 years: 34 patients with endometrial polyps, 30 patients with micropolyps, 36 patients with endometrial polyps and micropolyps, 30 healthy women of the control group. Hysteroscopy was performed for women who had been suspected for endometrial polyps and who had infertility or repeated recurrent miscarriages. Endometrial samples from healthy women were obtained by aspiration biopsy. The endometrial sections were immunostained with monoclonal antibodies against the specific markers of plasmacytes (CD138), NK cells (CD56, CD16), pan leukocytes (CD45), macrophages (CD68), cellular marker for proliferation (Ki-67), ER, PR. Bacteriological examination of the endometrium was performed by PCR and by cultivating aerobic and anaerobic microorganisms on special growth media. In all groups of women the content in blood serum for 3-5 day of a menstrual cycle of gonadotropic hormones (FSH, LH) and sex steroid hormones (estradiol, prolactin) was studied, for 21 days of a cycle estimated the content of progesterone. Level of an expression of receptors of progesterone and estrogen estimated in endometrium and at EP, also in I a cycle phase. Highlighted are separate clinical and pathogenetic variations of endometrial polyps: isolated polyps, micropolyps, polyps in conjunction with micropolyps. In the course of study, it was found that progesterone deficiency and local immune imbalance with severe hypofunctional NK cells against viral and fungal infestations result in excessive endometrial cell proliferation and development of an isolated polyp. The case of a polyp merging with micropolyps potentiates an active inflammatory process alongside all of the mechanisms mentioned above. Micropolyps as a macroscopic manifestation of an active inflammatory process in chronic endometritis are characterized by focal infiltrates of leukocytes (CD45), macrophages (CD68), plasmacells (CD138) and NK (CD56) cells, whose activity leads to excess abnormal proliferation of endometrium, even in the absence of hormone receptor disorders. PMID- 29328020 TI - The synaptic ribbon is critical for sound encoding at high rates and with temporal precision. AB - We studied the role of the synaptic ribbon for sound encoding at the synapses between inner hair cells (IHCs) and spiral ganglion neurons (SGNs) in mice lacking RIBEYE (RBEKO/KO). Electron and immunofluorescence microscopy revealed a lack of synaptic ribbons and an assembly of several small active zones (AZs) at each synaptic contact. Spontaneous and sound-evoked firing rates of SGNs and their compound action potential were reduced, indicating impaired transmission at ribbonless IHC-SGN synapses. The temporal precision of sound encoding was impaired and the recovery of SGN-firing from adaptation indicated slowed synaptic vesicle (SV) replenishment. Activation of Ca2+-channels was shifted to more depolarized potentials and exocytosis was reduced for weak depolarizations. Presynaptic Ca2+-signals showed a broader spread, compatible with the altered Ca2+-channel clustering observed by super-resolution immunofluorescence microscopy. We postulate that RIBEYE disruption is partially compensated by multi AZ organization. The remaining synaptic deficit indicates ribbon function in SV replenishment and Ca2+-channel regulation. PMID- 29328025 TI - THE PECULIARITIES OF THE STATE OF THE AUTONOMIC NERVOUS SYSTEM ESTIMATED BY THE METHOD OF HEART RATE VARIABILITY IN PATIENTS WITH CIRRHOSIS AND SYNTROPIC DAMAGES OF CARDIOVASCULAR SYSTEM. AB - In the article the features of the autonomic nervous system state were estimated by the method of heart rate variability in patients with cirrhosis with syntropic damages of cardiovascular system - cardiomyopathy and arterial hypotension. As a result of an examination of 50 patients with liver cirrhosis and cardiomyopathy (investigational group A), 54 patients with liver cirrhosis and arterial hypotension (investigational group B), and 45 patients with liver cirrhosis also those who don't have the damages of cardiovascular system (group of comparison) it was established that: 1) they have the peculiarities of vegetative imbalance the characteristics of which are the low summarized activity of vegetative influence on heart rhythm and special dynamics of indexes of percentage structure of general spectral power; 2) they depend on the clinical variant of this damage in patients with cirrhosis and syntropic cardiomyopathy the regulating of internal processes involve the humoral-metabolic influence, i.e. local vasoactive conjunctions, catecholamines, renin-angiotensin-aldosterone system, with a simultaneous influence of sympathetic system and activity reduction of parasympathetic vegetative nervous system, and in patients with cirrhosis and syntropic arterial hypotension - the internal regulation involves the local humoral-metabolic factors with the lack of both sympathetic and parasympathetic parts of vegetative nervous system. PMID- 29328026 TI - CLINICAL EFFICACY OF S-ADENOSYLMETHIONINE IN PATIENTS WITH NON-ALCOHOLIC STEATOHEPATITIS AND CHRONIC KIDNEY DISEASE I-II STAGE. AB - The article presents a theoretical generalization of the results of the clinical efficacy of S-adenosylmethionine in patients with non-alcoholic steatohepatitis (NASH) in comorbidity with obesity and chronic kidney disease (CKD) of the 1st 2nd stages. The objective of the article was to determine the likely effect of S adenosylmethionine and Meldonium on the clinical course of non-alcoholic steatohepatitis (NASH) and chronic kidney disease (CKD) of the I-II stages. We examined 75 patients with NASH with comorbid obesity I degree and CKD I and II dgrees. To determine the efficacy of the treatment, 3 groups of patients were randomized according to age, sex, degree of obesity, activity of the cytolytic syndrome of NASH and the stage of the CKD. SAM possesses powerful membrane stabilizing properties, stably eliminates the manifestations of cytolysis, cholestasis, mesenchymal-inflammatory syndrome, increases the albumin synthesizing function of the liver in patients with NASH and prevents the loss of albumins in the conditions of CKD I-II st. At the same time, complex therapy of SAM and vazonate is superior to the effectiveness of correction of these syndromes due to the implementation of powerful metabolic, antioxidant, antihypoxant, energy-specific properties of Meldonium and may be recommended for the introduction into the practice of internal medicine and gastroenterology for treatment NASH on the background of obesity and CKD I and II stages. The established nephroprotective properties of SAM that are potentiated by Meldonium are probably due to the ability of these drugs to eliminate endothelial dysfunction, improve microcirculation, and prevent the progression of kidney fibrosis. S-adenosylmethionine (ahepta) in a dose of 600 mg sublingually in patients with non-alcoholic steatohepatitis on the background of obesity and chronic kidney disease of the 1st and 2nd st. produces powerful membrane stabilizing effects on the affected hepatocytes, stably eliminates the clinical manifestations of the disease, the intensity of cytolysis, cholestasis, mesenchymal-inflammatory syndrome, inhibits the progression of hepatic and renal dysfunction (increases the albumin-synthesizing function of the liver, the velocity of glomerular filtration) by optimizing the control of fibrosis of the liver and kidneys. Complex therapy with S-adenosylmethionine (ahape) and Meldonium (500 mg /day)(vasonate) is superior to the correction of these syndromes NASH and CKD, since the vasonate potentially potentiates the action of S-adenosylmethionine in acute and distant observation periods. PMID- 29328027 TI - THE IMPACT OF 12-MONTH GROWTH HORMONE REPLACEMENT THERAPY ON LIPID METABOLISM AND ADIPOSE TISSUE DISTRIBUTION IN GEORGIAN PATIENTS WITH ADULT GROWTH HORMONE DEFICIENCY. AB - Growth hormone deficiency (GHD) is one of the reasons of significant metabolic morbidities inchildren and adults. The aim of our study was to evaluate the impact of growth hormone (GH) replacement therapy on lipid profile and adipose tissue distribution in adults with GHD. Twenty hypopituitary adults, aged 40.75+/ 2.2 years (mean +/- SE, range 20.5-60), with adult onset GHD (aGHD) were enrolled in a randomized, double blind, placebo-controlled study. 10 patients received recombinant growth hormone injection once weekly for 12 months, and the rest 10 patients (as control group) received placebo. The patients were selected from the basis of National Institute of Endocrinology. After 12 months of treatment mean values of low density lipoprotein cholesterol (LDL-CH), total cholesterol (CH) and triglycerides (TG) were increased in GH treated patients, compared to the control group (median increase in LDL-CH, CH and TG were 0.1 mmol/l, 0.1 mmol/l and 0.3mmol/l, respectively). In contrast, the favorable effect was seen in high density lipoprotein cholesterol (HDL-CH) levels with the median increase of 0.2 mmol/l). Furthermore, there was an increase in adipose tissue distribution percentages, in GH treated patients (DXA: Legs +10.22%, Trunk: +7.43%, Android: +5.59%, Gynoid: +10.59%, Total body: +7.6%), compared to the control group, in which adipose tissue distribution was slightly improved or remained unchanged. Since the results of 12-month growth hormone treatment therapy did not show any improvements in lipid profile and adipose tissue distribution, the decision was made to prolong the study for the next 12 months. PMID- 29328028 TI - [SKIN PATHOLOGY IN DIABETES MELLITUS: CLINICAL AND PATHOPHYSIOLOGICAL CORRELATIONS (REVIEW)]. AB - Skin pathology is registered in vast majority of patients with diabetes mellitus (DM). Despite the abundance of publications on dermatological problems in DM, there is still a number of gaps to be discussed in terms of pathophysiological mechanisms. The goal of this review was to assess the mechanisms of development of different skin pathologies under DM. One of the key pathogenic mechanisms of skin lesions in diabetes is hyperglycemia and the effects of the advanced glycation end products, inducing oxidative stress, endothelial dysfunction and inflammation; that in its turn can accelerate the mechanisms of skin aging, the development of diabetic dermopathy and scleredema diabeticorum. Imbalance of growth factors, cytokines and hormones under insulin resistance, is associated with increased proliferation of keratinocytes, fibroblasts and sebocytes, mast cell dysfunction and melanogenesis disorders in acanthosis nigricans, acrochordons, acne and inflammatory dermatitis in diabetic patients. In addition, authors discuss the role of dendritic cells and macrophages dysfunction in impairment of peripheral tolerance and diabetic wounds pathogenesis in patients with DM. PMID- 29328029 TI - [METABOLIC SECRETION IN REPRODUCTIVE AGE WOMEN WITH OBESITY]. AB - For the last decade melatonin has attracted attention as a neuroregulator in pathogenesis of obesity and metabolic syndrome. The aim of our study is to evaluate the characteristics of metabolic secretion in obese women of reproductive age. The study was conducted on the total number of 120 women. Eighty women with obesity formed the case group, and forty healthy women - the control group. Carbohydrate metabolism, lipid profile and serum levels of melatonin were evaluated in all study subjects. According to the results, 61.3% of the total study population had insulin resistance and 60% had dyslipidemia. Melatonin hypersecretion, with the mean level of melatonin 129.4+/-124.9, was observed in the case group. The mean level of melatonin in the control group was 107.5+/-10.9, which was 17% less than in the case group. Melatonin secretion was in significant correlation with patients' age (P=0.022), family history of myocardial infarction (P=0.030), excess carbohydrate intake (P=0.051) and enlarged ovaries (P=0.050). Our results confirm the relationship between obesity, metabolic abnormalities (insulin resistance, dyslipidemia) and melatonin hypersecretion in women of reproductive age. PMID- 29328030 TI - MODERN APPROACHES TO FRACTIONAL EXHALED NITRIC OXIDE AS A USEFUL BIOMARKER FOR ALLERGIC ASTHMA PHENOTYPING AND MANAGEMENT. AB - Asthma is a pathologically heterogeneous disease, consisting of several phenotypes. Different types of airway inflammation are the cornerstone feature of this condition. Fraction of nitric oxide in exhaled air (FENO) has been proposed as a noninvasive, specific biomarker for eosinophilic airway inflammation and has been shown to be elevated in patients with allergic asthma phenotype. More recent studies indicate that FeNO identifies T-helper cell type 2 (Th2)-mediated airway inflammation with a high predictive value for identifying inhaled corticosteroid (ICS) responsive airway inflammation. Taking into account the accumulated evidence,it is possible to consider, that FeNO testing has an important role in the assessment of patients with suspected asthma and in the management of established asthmadiagnosis. In conjunction with symptom scores and lung function tests, FeNO measurement could provide a more useful and effective approach for asthma in terms of: (1) detecting the presence of Th2-mediated airway inflammation, (2) determining the likelihood of ICS responsive (and lack of course), (3) monitoring of airway inflammation to determine risk for future impairment or loss of asthma control during reduction/cessation of ICS treatment, (4) unmasking (otherwise unsuspected) non-adherence to corticosteroid therapy and (5) in severe asthma cases tailoring treatment with biological drugs. However, more work is still needed to address outstanding questions about its exact role in guiding asthma management and better define the use of FENO in different clinical settings. PMID- 29328031 TI - METABOLIC PROFILE OF SERUM FATTY ACIDS IN PATIENTS WITH COMORBIDITY OF CHRO-NIC OBSTRUCTIVE PULMONARY DISEASE AND CHRONIC PANCREATITIS. AB - Objective - study of blood serum fatty acid metabolic profile in patients with comorbidity of COPD and chronic pancreatitis. 238 patients were examined, of them 131 with combined COPD and chronic pancreatitis and 107 with isolated COPD run. In study of fatty acid spectrum biological materials were prepared and gas chromatography analysis of blood serum lipid fatty acid spectrum performed according to methodology by L.V.Sazonenko et al. The study showed that COPD exacerbation was accompanied with by changes in contents of particular fatty acids both in patients with isolated COPD and in patients with comorbidity in comparison with almost healthy patients. In comparison of values for isolated COPD patients and comorbidity of COPD and chronic pancreatitis patients unidirectional deviations in concentrations of basic FAs were observed in both groups. Although concentrations of basic FAs mostly did not have probable discrepancies, nevertheless, concentration changes of stearic and linoleic acids were significantly more expressed, which caused saturation level reduction and increased unsaturation of fatty acids. The presence of concomitant chronic pancreatitis in patients with COPD substantially strengthened the expression of FAs spectrum deviations due to increase of unsaturation level and the sum of PSFAs which is indicative of lipid peroxidation processes intensification, and this may be treated as one of additional factors of pathology progressing. PMID- 29328032 TI - [TACTICS OF CHOOSING COGNITIVE DYSFUNCTION THERAPY IN THE POSTOPERATIVE PERIOD]. AB - The aim of the study is to formulate the tactics of assigning adequate neuroprotective therapy to patients with postoperative cognitive dysfunctions on the basis of subtracting the indicator of the total cognitive deficiency. To achieve this goal, we conducted a study of cognitive function in patients of different age groups: young age, middle age, elderly age with acute surgical pathology before surgery and at 1, 7, 30 days after surgery compared with preoperative data. Methods of research. The study of the cognitive sphere: scale MMSE, test drawing hours, test "10 words", battery tests for frontal dysfunction, method Schulte. The indicator of the total cognitive deficiency was calculated. The results of the study of cognitive function made it possible to formulate a scheme for the use of citicoline and cytoflavin in a complex of therapeutic programs. In each age group, on the seventh day of the study, there were patients with different dynamics of cognitive function recovery for the preoperative period. This allowed us to develop and propose a formula for calculating the total cognitive deficit, which makes it possible to formulate appropriate tactics for managing patients in the subsequent period in each specific case. We determine the values of the percentage deviations of each study result from the norm and the indicator of the total cognitive deficit by the sum of the values of the percentage deviation from the norm of the results of the study of cognitive impairment. PMID- 29328033 TI - [ELEMENTAL STATUS OF PATIENTS WITH VARIOUS FORMS OF VITILIGO]. AB - Vitiligo is a multifactorial disease in which, in each specific case of its manifestation, different mechanisms of its pathogenesis and different levels of melanin formation in the skin can be involved. Skin is one of the most metabolically active organs. Carrying out a number of vital functions (barrier, protective, respiratory, excretory, metabolic, immune, etc.), it needs microelementss. Of the 92 naturally occurring chemical elements, 81 are found in the human body. Lack of the vital elements, leads to the emergence of diseases, which are based on deficiency, excess or imbalance of micro- and macroelements in the body. To assess the elemental status of patients with various forms of vitiligo, fluorescent x-ray spectroscopy was used. The method has good informativeness, since the hair most fully reflects the level of content of both toxic and vital elements. According to the results obtained, in patients with segmental vitiligo, a slight decrease in the content of manganese and copper was detected in the hair. In the group of patients with non-segmental form of vitiligo, along with a significant decrease in the concentration of basic elements (on average from 20 to 50%) copper, manganese, selenium, zinc, there was an increase in the indices of such toxic elements as lead and cadmium. The data of multi-element hair analysis, as are confirmed by well-known information about the role of certain chemical elements in the pathogenesis of vitiligo, also allow us to make new assumptions about the possible relationship between the violation of the microelement balance of the organism with the emergence and peculiarity of the flow of various forms of vitiligo. The correct approach to understanding the mechanisms of the emergence of vitiligo, will allow to offer new effective schemes for the treatment of vitiligo. PMID- 29328034 TI - CHARACTERISTICS OF ARTICULAR SYNDROME IN SYSTEMIC VASCULITIS. AB - The purpose of the study - investigation the separate joint lesion in systemic vasculitis, their X-ray sonographic characteristics, the correlation of the articular syndrome severity with extra-articular manifestations of the diseases, as well as aspects of the arthritis pathogenesis in this category of patients. The study included 525 patients in the ratio of the examined with Henoch-Schonlen purpura, microscopic polyangiitis, cryoglobulinemic vasculitis, polyarteritis nodosa, Takayasu's arteritis, Wegener's granulomatosis with polyangiitis and eosinophilic granulomatosis with polyangiitis Churg-Strauss as a 7:4:3:1:1:1:1. Joint's damage in the form of arthritis or arthralgia observed in 32-67% different groups of patients, that depending on the disease duration, the degree of the pathological process's activity, extraarticular signs severity, lung parenchyma involving and hemodynamic status in the pulmonary circulation. The frequency of the certain bone lesions, existence of tenosynovitis and enthesopathies, X-ray sonographic signs of articular syndrome in different kind of vasculitis has its own gender dimorphism. The immune system malfunction, the rheological properties of blood and endothelial function of vessels collaborate in pathogenetic constructions of arthropathy. What is more, the high value of rheumatoid factor in blood associates with severe course of joint damage. Joint syndrome at different variants of systemic vasculitis is progressing in 1/3-2/3 of cases, this syndrome has definite features of clinical course and pathogenesis. PMID- 29328035 TI - ASSESSMENT OF NEURODEVELOPMENTAL OUTCOMES IN INFANTS 6-12 MONTHS OF AGE ACCORDING TO IMPACT OF PERINATAL RISK FACTORS. AB - The purpose of this research was to investigate the developmental follow-up of infants (at age of 6 month and 12 month), exposed to separate and combination impact of perinatal risk factors, compared with not exposed cases, within the prospective cohort study. Between January 2015 and January 2017, in this research we prospectively enrolled 1018 live-born infants from the medical reports of the participating clinics in Tbilisi (capital of Republic of Georgia) and Mtskheta, Dusheti (districts of Georgia). Within postnatal follow-up, the children from whole population were assessed at 6 and 12 months of age by family doctors using the Denver Developmental Screening Test (Denver II). The association between the risk factors and neurodevelopmental outcomes was analyzed by Chi-square test of independence. Statistical analysis of these data was performed using the SPSS version 12. (SPSS Inc., Chicago, IL). A P value of less than 0.05 was considered as significant. Prevalence of abnormal development in whole population was revealed 9.0% or 92 cases at age of 6 month and 36 cases or 3.5% at age of 12 month. Point prevalence of farther neurodevelopmental adversities for healthy born children not influenced by studied risk factors was 0.1% and for infants with impact of the risk factors - 1.5%; on the other hand, prevalence of observed abnormal development in infant's population who had neonatal pathologies was 2.3% if risk factors were not exposed and 21.6% under influence of risk factors. Statistical analysis showed that an abnormal developmental outcomes were more frequent when researched risk factors were exposed (OR-23.18, CI 95% - 11.83 to 45.41 - at age of 6 month; OR - 26.12, CI 95% - 7.95 to 85.85 - at age of 12 month) as well, as correlation of these risk factors with neurodevelopmental adverse outcomes was significant (p<0.001). Significant correlations were identified for separate risk factors, such as maternal age (<17Y>35Y), pathologies of pregnancy and delivery as well as gestation age (<37 weeks). Coexistence of revealed risk factors increased probability of adverse neurological outcomes in infants at age of 6 month as well as at age of 12 month. There was a statistically important association between infant's 1-year neurological outcomes and these perinatal risk factors. PMID- 29328036 TI - [STRUCTURE AND RISK FACTORS FOR CONGENITAL MALFORMATIONS]. AB - Congenital malformations and anomalies occupy leading positions in the structure of infant mortality and disability. In order to reduce the risk of children with these disorders, it is necessary to carefully study the causes of congenital malformations. In this connection, the structures and risk factors of congenital malformations of the fetus were studied and recommendations for the improvement of preventive measures were developed. When studying the structure of congenital malformations of the fetus in Almaty, hereditary and acquired causes of congenital malformation are identified. In the course of the study, the main risk factors for fetal development of the fetus were studied, where the main predictors were identified. The main age of women, 30-46 years old, whose pregnancy is susceptible to fetal malformation, has been determined. On the basis of the data obtained, recommendations are given on improving the sanitary literacy among women, creating a healthy lifestyle and ensuring prevention. PMID- 29328037 TI - [IMPLEMENTATION OF THE RIGHT FOR HEALTH CARE FOR CHILDREN - INTERNALLY DISPLACED PERSONS (CERTAIN ASPECTS)]. AB - The aim of the article is to do a research on selected issues related to realizing the right for health sare for the children - internally dislocated persons. In order to achieve the given aim statistical data of the quantity of involuntarily dislocated persons including children and also the quantity of children registered with the health-care authority as well as the quantity of their requests for medical care have been analized. It has been determined that in case of involuntary dislocation children are more often exposed to trauma than adults which leads to different emotional disorders. The concepts of "the right for health care" in international legal acts, national legislation of Ukraine and scientific works have been analized. There have been defined three levels of the provision of the right for health care of internally dislocated persons. It has been substantiated that the fact that a child has not been registered with the health-care authority as IRP can't be a ground for limitations in realization of his right on health care. During the research process it has been defined that children IRP need medical care more often than other internally dislocated persons and in realization of the right for health care they come across a number of problems that need urgent solution, including access to free of charge professional medical care, regardless of the fact of medical registration of a child IRP, insufficient funding for provision of the needs of children IRP with medications, absence of obligatory primary medical examination of children IRP, etc. PMID- 29328038 TI - QUANTITATIVE ASSESSMENT OF THE RESULTS OF VIMENTIN IMMUNOHISTOCHEMICAL EXAMINATION IN FIBROBLASTS AND ENDOTHELIOCYTES OF THE PLACENTAL VILLI IN THE ASPECT OF PRETERM MATURATION OF THE CHORIONIC TREE AND IRON DEFICIENCY ANEMIA OF GRAVIDAS. AB - The objective of our study was to investigate quantitative parameters of vimentin in fibroblasts and endotheliocytes of the chorionic villi by means of immunohistochemical examination of placenta with preterm maturation of the chorionic tree with iron-deficiency anemia of pregnancy in two different terms of gestation - 29-32 weeks and 33-36 weeks. 182 placentas were examined. The study design included two main groups of investigation of the above terms of gestation and three groups of comparison. Quantitative parameters of vimentin in the cytoplasm of fibroblasts and endotheliocytes of the placenta intermediate and terminal villi were considered on the basis of staining optic density measured by means of computer microdensitometry method. Immunohistochemical staining on vimentin was determined in the cytoplasm of fibroblasts and endotheliocytes of the placenta intermediate and terminal villi in all the groups of the study. The main results are presented in the conclusions. Optic density of immunohistochemical staining on vimentin in the cytoplasm of fibroblasts and endotheliocytes of the placenta intermediate and terminal villi was found to be a criterion to determine maturation of the placenta chorionic tree. Iron-deficiency anemia paradoxically causes immaturity of fibroblasts and endotheliocytes of the placenta intermediate and terminal villi even in those placentas where preterm maturation of the chorionic tree is determined. PMID- 29328039 TI - INFLUENCE OF METABOLIC SYNDROME ON CONDITION OF MICROCIRCULATORY BED OF ORAL CAVITY. AB - Metabolic syndrome (MS) can be characterized as the clustering of combination of impaired glucose regulation, metabolic disorders accompanied by abdominal obesity, hyperglycemia, high blood pressure and dyslipidemia. Detection of changes in microcirculatory bed (MCB) of oral cavity in metabolic syndrome could be important for completion of gap for developing of adequate therapeutical measure for prevention of pathological periodontal disorder that was the purpose of our study. We performed experimental investigation with modulation of MS (on white male rats 1.5-2 months of age) during 70 days using a diet in which the oral pork fat was daily administered orally (40% of the rat weight), and 10% fructose ad libitum solution was used also instead of drinking water. Obtained specimens of soft tissues of the oral cavity were stained with histological and histochemical methods. The microscopic study with statistical analysis was performed. As result of our work it is established that metabolic syndrome is realized in significant changes in the microcirculatory bed of the periodontal, which can underlie the pathogenesis of inflammatory changes. Microcirculation disorders are characterized by significant changes in microangioarchitecture with uneven congestion, reduced specific volume of MCB vessels, thickening of vascular walls. Specific density of MCB vessels is changed from 27.40+/-8.31 % to 13.16+/ 1.94 % statistically. Growth of connective tissue is developed as result of hypoxia with presence of collagen fibers in all layers of oral mucosa lamina propria. Specific density of rough connective tissue is increased from 21.47+/ 6.38 % to 39.87+/-5.39 %. PMID- 29328040 TI - EXPRESSION OF CYCLIN E IN BASAL-LIKE BREAST CARCINOMA. AB - Results of study under 362 patients biopsy materials in Tbilisi National Cancer Center were shown that basal-like type breast carcinoma is characterizes by different reaction on Cyclin E, CK5/17 and ER/PR immunoreactivities. Basal-like tumor immunoreactivity on Cyclin E differs based they clinical stage and seen maximum correlation with III-IV stage and poor prognosis. PMID- 29328041 TI - VON WILLEBRAND FACTOR IMMUNOHISTOCHEMICAL STAINING QUANTITATIVE OPTICAL DENSITY PARAMETERS IN THE ENDOTHELIUM AND FIBRINOID OF THE PLACENTA DURING SECUNDINES INFLAMMATION AND CONCOMITANT IRON DEFICIENCY ANEMIA IN GRAVIDAS. AB - The aim of the research was to set the optical density quantitative parameters of the von Willebrand factor immunohistochemical staining (vWF) in the endothelium and fibrinoid of the placenta during the secundines inflammation concomitant with iron deficiency anemia in gravidas. The total number of 198 placentas was studied. The immunohistochemical technique was performed using the visualization of the primary antibodies to vWF with a diaminobenzidine dye polymer system. The optical density of the histochemical staining was measured by means of computer microdensitometry after the digital copies of the images had been obtained. All the cases of the secundines inflammation and the structures under study were found to have a significant increase in the optical density of the vWF immunohistochemical staining in the endothelium of the blood vessels as compared to the physiological pregnancy. Iron deficiency anemia in gravidas (IDAG) contributes to an increase in the indices of the inflammation, the highest data pertaining to the endothelial cells of the placental basal plate in chronic basal deciduitis. The optical density of the staining in the fibrinoid of the chorionic and basal plates during chronic forms of chorioamnionitis and basal deciduitis is higher than the optical density inherent in physiological pregnancy. The intensity of staining increases in presence of all the forms of inflammation on the background of IDAG in comparison with physiological pregnancy with placenta inflammation. Compared with IDAG in absence of the inflammatory processes, only chronic inflammatory processes reveal a change in indices. Consequently, the optical density of the staining significantly increases in the endothelium of blood vessels in all forms of the secundines inflammation, in comparison with the physiological pregnancy, whereas in fibrinoid the same process is reported only in chronic course. In this case, IDAG is accompanied by maximum levels of optical density in the endothelium and fibrinoid, whereas in chronic, the average indices are higher than those in acute forms. PMID- 29328042 TI - DYNAMICS OF CHANGES IN INDICES OF ENDOGENOUS INTOXICATION IN PATIENTS WITH ACUTE SMALL INTESTINAL OBSTRUCTION IN CASE OF REAMBERIN USE IN THE COMPREHENSIVE TREATMENT. AB - The objective of this research was to study changes in parameters, characterizing endogenous intoxication in patients with acute small bowel obstruction with Reamberin included into therapy scheme. Full physical examination and surgical treatment of 202 patients with acute small bowel obstruction were conducted. The control group included 30 healthy individuals. Dynamics of such clinical biochemical parameters as medium mass molecules (MMM), malondialdehyde (MDA), diene conjugates (DC) in blood serum were analyzed in preoperative period and on the 1st, 5th and 14th day of postoperative period. Significant free radical production occurred both in preoperative period and after surgical intervention. This was the reason to include antioxidant therapy using Reamberin (STPF "POLYSAN") in addition to basic treatment. The drug is approved for use by Central Formulary Committee of the Ministry of Health of Ukraine. All patients were divided into 2 groups depending on the treatment scheme. Group I consisted of 100 patients with acute small bowel obstruction who underwent the comprehensive treatment according to recommendations of the Ministry of Health of Ukraine No 297 dated 02.04.2010 (Standards of medical care for patients with urgent surgical diseases of the abdominal cavity). 102 patients of group II received the comprehensive treatment of antihypoxant and antioxidant therapy with Reamberin added to basic scheme. The main active ingredient of Reamberin is succinic acid. The drug was administered intravenously by drop infusion in a dose of 400 ml a day during 7-day period. Administration rate did not exceed 90 drops per minute. The medicine administration was started during complex preoperative preparation and then was done immediately after the completion of surgical treatment under resuscitation conditions. It was shown that the use of Reamberin promotes effective correction of free radical imbalance, reduction of endogenous intoxication and postoperative complications. PMID- 29328043 TI - COMPLEMENTARY AND ALTERNATIVE MEDICINE AND MEDICAL EDUCATION IN GEORGIA: STATE OF THE ART AND FURTHER PERSPECTIVES. AB - Aim - complementary and alternative medicine (CAM) is popular in Georgia, but providers' training not well understood or regulated. The aim of this mixed methods study was to inform the process of implementing quality CAM curricula in Georgia and strategies for the inclusion of effective CAM curricula into medical education in Georgia. We analyzed existing medical curricula. We conducted a contextual analysis based of qualitative data collected from relevant medical education experts, qualified physicians, CAM practitioners and other stakeholders; and administered a quantitative MD students' survey to MD students. CAM components are currently not represented in medical curricula in Georgia. Physicians largely lack adequate knowledge of CAM and its practice. All stakeholders supported that it would be beneficial to develop CAM educatory courses, both to future practitioners (medical students, initially as an elective subject) and practicing physicians (through CME). We recommend development/integration of an elective subject and/or a curricular component as a first step of CAM integration into the medical curricula in Georgia for MD students and CME courses for physicians. Interdisciplinary and international collaborations may help achieve best outcome, and safe practice of CAM in Georgia, forming a base for physician - CAM practitioner collaborations for quality care for patients in Georgia. PMID- 29328044 TI - A COMPUTER MODELING STUDY OF BINDING PROPERTIES OF CHIRAL NUCLEOPEPTIDE FOR BIOMEDICAL APPLICATIONS. AB - Nucleopeptides often show interesting properties of molecular binding that render them good candidates for development of innovative drugs for anticancer and antiviral therapies. In this work we present results of computer modeling of interactions between the molecules of hexathymine nucleopeptide (T6) and poly rA RNA (A18). The results of geometry optimization calculated using Hyperchem software and our own computer program for molecular docking show that molecules establish stable complexes due to the complementary-nucleobase interaction and the electrostatic interaction between the negative phosphate group of poly rA and the positively-charged residues present in the cationic nucleopeptide structure. Computer modeling makes it possible to find the optimal binding configuration of the molecules of a nucleopeptide and poly rA RNA and to estimate the binding energy between the molecules. PMID- 29328045 TI - ASSESSMENT OF THE LEVEL OF KNOWLEDGE OF MEDICAL PERSONNEL IN DIARRHEA AND HEMOLYTIC-UREMIC SYNDROME. AB - Survey have been conducted among medical professionals to test knowledge level of HUS and diarrheal diseases and to identify predictor variables for better knowledge. Cross-sectional survey have been conducted among medical personnel at different clinics in Tbilisi and in regions of Georgia. Participants were selected from different clinics in Tbilisi and in three biggest regional cities (Zugdidi, Batumi and Kutaisi) of Georgia. A total of 12 clinics were selected from them 6 were in Tbilisi and 2 at each regional cities. Clinics were selected based on their ability to provide services for gastrointestinal diseases, infectious diseases and kidney diseases. Data were entered into electronic database and analyzed using R v3.3.2. Descriptive statistics and methods of multivariate analysis were used for data analysis. 366 medical personnel have been interviewed. 73% (267) were females and 27% (99) males. Mean age was 40.8, IQR (27-52). A total of 64% (235) participants were from clinics located in Tbilisi. In multivariate analysis background in infectious diseases, female sex and having more than 10 years of medical experience were significantly associated with the total knowledge score of diarrheal diseases (p<0.05). High total knowledge score of HUS was detected among pediatricians (p<0.05). Trainings has been recommended for medical specialists to increase knowledge of diarrheal diseases and HUS to be able to identify those condition and to provide timely medical support for patients. PMID- 29328046 TI - Spatiotemporal radiotherapy planning using a global optimization approach. AB - This paper aims at quantifying the extent of potential therapeutic gain, measured using biologically effective dose (BED), that can be achieved by altering the radiation dose distribution over treatment sessions in fractionated radiotherapy. To that end, a spatiotemporally integrated planning approach is developed, where the spatial and temporal dose modulations are optimized simultaneously. The concept of equivalent uniform BED (EUBED) is used to quantify and compare the clinical quality of spatiotemporally heterogeneous dose distributions in target and critical structures. This gives rise to a large-scale non-convex treatment plan optimization problem, which is solved using global optimization techniques. The proposed spatiotemporal planning approach is tested on two stylized cancer cases resembling two different tumor sites and sensitivity analysis is performed for radio-biological and EUBED parameters. Numerical results validate that spatiotemporal plans are capable of delivering a larger BED to the target volume without increasing the BED in critical structures compared to conventional time invariant plans. In particular, this additional gain is attributed to the irradiation of different regions of the target volume at different treatment sessions. Additionally, the trade-off between the potential therapeutic gain and the number of distinct dose distributions is quantified, which suggests a diminishing marginal gain as the number of dose distributions increases. PMID- 29328047 TI - Optimal multichannel transmission for improved cr-MREPT. AB - Magnetic resonance electrical properties tomography (MR-EPT), aiming at reconstructing the EP's at radio frequencies, uses the H + field (both magnitude and phase) distribution within the object. One of the MR-EPT algorithms, cr MREPT, accurately reconstructs the internal tissue boundaries, however, it faces an artifact which occurs at the regions where the convective field, [Formula: see text], [Formula: see text], has a low magnitude (at the noise level). This study aims to develop an artifact-free conductivity reconstruction by modifying the H + field inside the region of interest (ROI), using multiple RF transmission techniques in MRI. An eight channel multi-transmit transverse electromagnetic array is used in two different drive configurations. The first drive is the standard volume excitation configuration where all ports are driven with the same magnitude and with 45 degrees phase increment between adjacent channels. In the second drive, the drive voltage magnitude and phases for each of the eight drive ports are modified to generate a desired H + distribution such that the low convective field region moves to another non-overlapping position. Finally, data from both drive experiments are simultaneously used to reconstruct EP's. Computer simulations using cylindrical phantoms and a brain model are conducted and it is shown that the low convective field artifact can be eliminated. It is further shown that it is not necessary to re-calculate the port drive RF voltage magnitude and phases for each patient. The implementation issues of this method are briefly discussed. PMID- 29328049 TI - PET attenuation correction for rigid MR Tx/Rx coils from 176Lu background activity. AB - One challenge for PET-MR hybrid imaging is the correction for attenuation of the 511 keV annihilation radiation by the required RF transmit and/or RF receive coils. Although there are strategies for building PET transparent Tx/Rx coils, such optimised coils still cause significant attenuation of the annihilation radiation leading to artefacts and biases in the reconstructed activity concentrations. We present a straightforward method to measure the attenuation of Tx/Rx coils in simultaneous MR-PET imaging based on the natural 176Lu background contained in the scintillator of the PET detector without the requirement of an external CT scanner or PET scanner with transmission source. The method was evaluated on a prototype 3T MR-BrainPET produced by Siemens Healthcare GmbH, both with phantom studies and with true emission images from patient/volunteer examinations. Furthermore, the count rate stability of the PET scanner and the x ray properties of the Tx/Rx head coil were investigated. Even without energy extrapolation from the two dominant gamma energies of 176Lu to 511 keV, the presented method for attenuation correction, based on the measurement of 176Lu background attenuation, shows slightly better performance than the coil attenuation correction currently used. The coil attenuation correction currently used is based on an external transmission scan with rotating 68Ge sources acquired on a Siemens ECAT HR + PET scanner. However, the main advantage of the presented approach is its straightforwardness and ready availability without the need for additional accessories. PMID- 29328048 TI - A biomechanical modeling-guided simultaneous motion estimation and image reconstruction technique (SMEIR-Bio) for 4D-CBCT reconstruction. AB - Reconstructing four-dimensional cone-beam computed tomography (4D-CBCT) images directly from respiratory phase-sorted traditional 3D-CBCT projections can capture target motion trajectory, reduce motion artifacts, and reduce imaging dose and time. However, the limited numbers of projections in each phase after phase-sorting decreases CBCT image quality under traditional reconstruction techniques. To address this problem, we developed a simultaneous motion estimation and image reconstruction (SMEIR) algorithm, an iterative method that can reconstruct higher quality 4D-CBCT images from limited projections using an inter-phase intensity-driven motion model. However, the accuracy of the intensity driven motion model is limited in regions with fine details whose quality is degraded due to insufficient projection number, which consequently degrades the reconstructed image quality in corresponding regions. In this study, we developed a new 4D-CBCT reconstruction algorithm by introducing biomechanical modeling into SMEIR (SMEIR-Bio) to boost the accuracy of the motion model in regions with small fine structures. The biomechanical modeling uses tetrahedral meshes to model organs of interest and solves internal organ motion using tissue elasticity parameters and mesh boundary conditions. This physics-driven approach enhances the accuracy of solved motion in the organ's fine structures regions. This study used 11 lung patient cases to evaluate the performance of SMEIR-Bio, making both qualitative and quantitative comparisons between SMEIR-Bio, SMEIR, and the algebraic reconstruction technique with total variation regularization (ART-TV). The reconstruction results suggest that SMEIR-Bio improves the motion model's accuracy in regions containing small fine details, which consequently enhances the accuracy and quality of the reconstructed 4D-CBCT images. PMID- 29328050 TI - Threshold-driven optimization for reference-based auto-planning. AB - We study threshold-driven optimization methodology for automatically generating a treatment plan that is motivated by a reference DVH for IMRT treatment planning. We present a framework for threshold-driven optimization for reference-based auto planning (TORA). Commonly used voxel-based quadratic penalties have two components for penalizing under- and over-dosing of voxels: a reference dose threshold and associated penalty weight. Conventional manual- and auto-planning using such a function involves iteratively updating the preference weights while keeping the thresholds constant, an unintuitive and often inconsistent method for planning toward some reference DVH. However, driving a dose distribution by threshold values instead of preference weights can achieve similar plans with less computational effort. The proposed methodology spatially assigns reference DVH information to threshold values, and iteratively improves the quality of that assignment. The methodology effectively handles both sub-optimal and infeasible DVHs. TORA was applied to a prostate case and a liver case as a proof-of-concept. Reference DVHs were generated using a conventional voxel-based objective, then altered to be either infeasible or easy-to-achieve. TORA was able to closely recreate reference DVHs in 5-15 iterations of solving a simple convex sub problem. TORA has the potential to be effective for auto-planning based on reference DVHs. As dose prediction and knowledge-based planning becomes more prevalent in the clinical setting, incorporating such data into the treatment planning model in a clear, efficient way will be crucial for automated planning. A threshold-focused objective tuning should be explored over conventional methods of updating preference weights for DVH-guided treatment planning. PMID- 29328051 TI - In situ synthesized SnO2 nanorod/reduced graphene oxide low-dimensional structure for enhanced lithium storage. AB - A unique SnO2 nanorod (NR)/reduced graphene oxide (RGO) composite morphology has been synthesized using the in situ hydrothermal method, for use as an anode material in lithium-ion batteries. The SnO2 NR adhering to the RGO exhibits a length of 250-400 nm and a diameter of 60-80 nm without any obvious aggregation. The initial discharge/charge capacities of the SnO2 NR/RGO composite are 1761.3 mAh g-1 and 1233.1 mAh g-1, with a coulombic efficiency (CE) of 70% under a current density of 200 mA g-1, and a final capacity of 1101 mAh g-1 after 50 cycles. The rate capability of the SnO2 NR/RGO is also improved compared to that of bare SnO2 NR. The superior electrochemical performance is ascribed to the special morphology of the SnO2 NRs-which plays a role in shorting the transmission path-and the sheet-like 2D graphene, which prevents the agglomeration of SnO2 and enhances conductivity during the electrochemical reaction of SnO2 NR/RGO. PMID- 29328052 TI - Shear-driven phase transformation in silicon nanowires. AB - We report on an unprecedented formation of allotrope heterostructured Si nanowires by plastic deformation based on applied radial compressive stresses inside a surrounding matrix. Si nanowires with a standard diamond structure (3C) undergo a phase transformation toward the hexagonal 2H-allotrope. The transformation is thermally activated above 500 degrees C and is clearly driven by a shear-stress relief occurring in parallel shear bands lying on {115} planes. We have studied the influence of temperature and axial orientation of nanowires. The observations are consistent with a martensitic phase transformation, but the finding leads to clear evidence of a different mechanism of deformation-induced phase transformation in Si nanowires with respect to their bulk counterpart. Our process provides a route to study shear-driven phase transformation at the nanoscale in Si. PMID- 29328053 TI - Symmetric spin-orbit interaction in triple quantum dot and minimisation of spin orbit leakage in CNOT gate. AB - We analyse spin-orbit interaction in triple quantum dots and show that a symmetric spin-orbit Hamiltonian does not follow the standard form used in double quantum dots, as a consequence of the presence of the third dot in the setup. Furthermore, CNOT implementation schemes based on the exchange interaction were studied. It was shown that an antisymmetric Dzyaloshinsky-Moriya term is the dominant source of spin-orbit leakage from the computational space. We present a simple scheme for the minimisation of leakage that can be implemented in cases where interacting spins enclose parallelogram or equilateral triangle loops. PMID- 29328054 TI - Effect of conductance linearity and multi-level cell characteristics of TaOx based synapse device on pattern recognition accuracy of neuromorphic system. AB - To improve the classification accuracy of an image data set (CIFAR-10) by using analog input voltage, synapse devices with excellent conductance linearity (CL) and multi-level cell (MLC) characteristics are required. We analyze the CL and MLC characteristics of TaOx-based filamentary resistive random access memory (RRAM) to implement the synapse device in neural network hardware. Our findings show that the number of oxygen vacancies in the filament constriction region of the RRAM directly controls the CL and MLC characteristics. By adopting a Ta electrode (instead of Ti) and the hot-forming step, we could form a dense conductive filament. As a result, a wide range of conductance levels with CL is achieved and significantly improved image classification accuracy is confirmed. PMID- 29328055 TI - An analysis of radon levels in the basements of UK workplaces and review of when employers should test. AB - Radon is a recognised lung carcinogen. The main source of radon in UK buildings is the ground. As basements have more ground contact than other parts of a building, and often limited ventilation, there is increased potential for high radon levels to occur. Regulations are in place in the UK to control radon exposure at work, to prompt employers to undertake risk assessments, test where necessary and take action if levels exceed certain thresholds. Both Public Health England (PHE) and the Health and Safety Executive (HSE) currently advise employers to test routinely occupied basements for radon, irrespective of geographical location; the minimum annual occupancy threshold has been established as one hour per week (approximately 50 h per year). PHE operates a routine measurement service for employers and holds the measurement data for radon levels in the basements of more than 3500 workplaces. Typically, radon concentrations follow a lognormal distribution over a wide range, when corrections are made for seasonal variations and the contribution of outside air. Statistical tests on these data show good correspondence in most cases for the workplace basements of seven different occupational sectors. Radon should be included in the risk assessments of basements of all workplace types irrespective of the radon-affected area status (i.e. whether they are located in a geographical unit where higher proportions of houses or workplaces are likely to exceed their reference levels). As a consequence of this analysis, however, evidence is presented that supports a change in the existing protocols on when to test the radon levels in basements, if a more sophisticated approach were to be adopted taking into account the affected area status. PMID- 29328056 TI - Monolithic Au/CeO2 nanorod framework catalyst prepared by dealloying for low temperature CO oxidation. AB - Monolithic Au/CeO2 nanorod frameworks (NFs) with porous structure were prepared by dealloying melt-spun Al89.7Ce10Au0.3 ribbons. After calcination in O2, a 3D Au/CeO2 NF catalyst with large surface area was obtained and used for low temperature CO oxidation. The small Au clusters/nanoparticles (NPs) were in situ supported and highly dispersed on the nanorod surface, creating many nanoscale contact interfaces. XPS results demonstrated that high-concentration oxygen vacancy and Au delta+/Au0 co-existed in the calcined sample. The Au/CeO2 nanorod catalyst calcined at 400 degrees C exhibited much higher catalytic activity for CO oxidation compared with the dealloyed sample and bare CeO2 nanorods. Moreover, its complete reaction temperature was as low as 91 degrees C. The designed Au/CeO2 NF catalyst not only possessed extreme sintering resistance but also exhibited high performance owing to the enhanced interaction between the Au clusters/NPs and CeO2 nanorod during calcination. PMID- 29328057 TI - Electron-phonon coupling from finite differences. AB - The interaction between electrons and phonons underlies multiple phenomena in physics, chemistry, and materials science. Examples include superconductivity, electronic transport, and the temperature dependence of optical spectra. A first principles description of electron-phonon coupling enables the study of the above phenomena with accuracy and material specificity, which can be used to understand experiments and to predict novel effects and functionality. In this topical review, we describe the first-principles calculation of electron-phonon coupling from finite differences. The finite differences approach provides several advantages compared to alternative methods, in particular (i) any underlying electronic structure method can be used, and (ii) terms beyond the lowest order in the electron-phonon interaction can be readily incorporated. But these advantages are associated with a large computational cost that has until recently prevented the widespread adoption of this method. We describe some recent advances, including nondiagonal supercells and thermal lines, that resolve these difficulties, and make the calculation of electron-phonon coupling from finite differences a powerful tool. We review multiple applications of the calculation of electron-phonon coupling from finite differences, including the temperature dependence of optical spectra, superconductivity, charge transport, and the role of defects in semiconductors. These examples illustrate the advantages of finite differences, with cases where semilocal density functional theory is not appropriate for the calculation of electron-phonon coupling and many-body methods such as the GW approximation are required, as well as examples in which higher order terms in the electron-phonon interaction are essential for an accurate description of the relevant phenomena. We expect that the finite difference approach will play a central role in future studies of the electron-phonon interaction. PMID- 29328058 TI - Behaviour of niobium during early Earth's differentiation: insights from its local structure and oxidation state in silicate melts at high pressure. AB - Niobium (Nb) is one of the key trace elements used to understand Earth's formation and differentiation, and is remarkable for its deficiency relative to tantalum in terrestrial rocks compared to the building chondritic blocks. In this context, the local environment of Nb in silica-rich melts and glasses is studied by in situ x-ray absorption spectroscopy (XAS) at high pressure (P) up to 9.3 GPa and 1350 K using resistive-heating diamond-anvil cells. Nb is slightly less oxidized in the melt (intermediate valence between +4 and +5) than in the glass (+5), an effect evidenced from the shift of the Nb-edge towards lower energies. Changes in the pre-edge features are also observed between melt and glass states, consistently with the observed changes in oxidation state although likely enhanced by temperature (T) effects. The oxidation state of Nb is not affected by pressure neither in the molten nor glassy states, and remains constant in the investigated P-range. The Nb-O coordination number is constant and equal to [Formula: see text] below 5 GPa, and only progressively increases up to [Formula: see text] at 9.3 GPa, the maximum P investigated. If these findings were to similarly apply to basaltic melts, that would rule out the hypothesis of Nb/Ta fractionation during early silicate Earth's differentiation, thus reinforcing the alternative hypothesis of fractionation during core formation on reduced pre planetary bodies. PMID- 29328059 TI - A simple way to synthesis larger-scale Cu2O/Ag nanoflower for ultrasensitive surface-enhanced Raman scattering detection. AB - Here, we report a simple strategy to prepare highly sensitive surface-enhanced Raman spectroscopy (SERS) substrates based on Ag decorated Cu2O nanoparticles by combing two commom techniques, viz, thermal oxidation growth of Cu2O nanoparticles and magnetron sputtering fabrication of Ag nanopartilce film. Methylene blue was used as raman analyte for the SERS study, and the substrates fabricated under optimized conditions have very good sensitivity (analytical enhancement facor ~108) , stablility and reproducibility. A linear dependence about the SERS intensities with the concentration was obtained with the R2 value > 0.9. These excellent properties indicate that the substrate have great potential in the detection of biological and chemical substances. PMID- 29328060 TI - In vivo neutron activation analysis of bone manganese in workers. AB - OBJECTIVE: Manganese (Mn) is a neurotoxin. However, the impact of elevated, chronic Mn exposure is not well understood, partially due to the lack of a cumulative exposure biomarker. To address this gap, our group developed a compact in vivo neutron activation analysis (IVNAA) system to quantify Mn concentration in bone (MnBn). APPROACH: In this study, we used this system and determined MnBn among male Chinese workers and compared results to their blood Mn (MnB), a measure of recent exposure, and the years of employment, a measure of cumulative exposure. A cross-sectional study was conducted with 30 ferroalloy smelters (exposed) and 30 general manufacturing workers (controls). MnBn was assessed using IVNAA, MnB was measured with inductively coupled plasma mass spectrometry, and occupational history and demographics were obtained via questionnaire. Mn doped phantoms were used to generate a calibration curve; spectra from these phantoms were consistent with in vivo spectra. MAIN RESULTS: The median (interquartile range (IQR)) values for Mn biomarkers were 2.7 ug g-1 (7.2) for MnBn and 14.1 ug l-1 (4.0) for MnB. In regression models adjusted for age and education, the natural log transformed MnBn (ln(MnBn)) was significantly associated with the exposed/control status (beta = 0.44, p = 0.047) and years of employment (beta = 0.05, p = 0.002), but not with natural log transformed MnB (ln(MnB)) (beta = 0.54, p = 0.188). SIGNIFICANCE: Our results support the use of IVNAA to quantify MnBn and the use of MnBn as a biomarker of cumulative Mn exposure. PMID- 29328061 TI - Spontaneous nano-gap formation in Ag film using NaCl sacrificial layer for Raman enhancement. AB - We report the method of fabrication of nano-gaps (known as hot spots) in Ag thin film using a sodium chloride (NaCl) sacrificial layer for Raman enhancement. The Ag thin film (20-50 nm) on the NaCl sacrificial layer undergoes an interfacial reaction due to the AgCl formed at the interface during water molecule intercalation. The intercalated water molecules can dissolve the NaCl molecules at interfaces and form the ionic state of Na+ and Cl-, promoting the AgCl formation. The Ag atoms can migrate by the driving force of this interfacial reaction, resulting in the formation of nano-size gaps in the film. The surface enhanced Raman scattering activity of Ag films with nano-size gaps has been investigated using Raman reporter molecules, Rhodamine 6G (R6G). PMID- 29328062 TI - Cyanobacterial photosynthesis under sulfidic conditions: insights from the isolate Leptolyngbya sp. strain hensonii. AB - We report the isolation of a pinnacle-forming cyanobacterium isolated from a microbial mat covering the sediment surface at Little Salt Spring-a flooded sinkhole in Florida with a perennially microoxic and sulfidic water column. The draft genome of the isolate encodes all of the enzymatic machinery necessary for both oxygenic and anoxygenic photosynthesis, as well as genes for methylating hopanoids at the C-2 position. The physiological response of the isolate to H2S is complex: (i) no induction time is necessary for anoxygenic photosynthesis; (ii) rates of anoxygenic photosynthesis are regulated by both H2S and irradiance; (iii) O2 production is inhibited by H2S concentrations as low as 1 MUM and the recovery rate of oxygenic photosynthesis is dependent on irradiance; (iv) under the optimal light conditions for oxygenic photosynthesis, rates of anoxygenic photosynthesis are nearly double those of oxygenic photosynthesis. We hypothesize that the specific adaptation mechanisms of the isolate to H2S emerged from a close spatial interaction with sulfate-reducing bacteria. The new isolate, Leptolyngbya sp. strain hensonii, is not closely related to other well characterized Cyanobacteria that can perform anoxygenic photosynthesis, which further highlights the need to characterize the diversity and biogeography of metabolically versatile Cyanobacteria. The isolate will be an ideal model organism for exploring the adaptation of Cyanobacteria to sulfidic conditions. PMID- 29328065 TI - Upper lid ptosis surgery: what is the optimal interval for the postoperative review? A retrospective review of 300 cases. AB - PurposeCorrection of upper eyelid ptosis is one of the most commonly performed oculoplastic procedures on the NHS but there is currently no data in the literature informing the surgeon of the optimal time for the first postoperative review. Our aim was to investigate how often a complication that warranted intervention occurred in the first 6 weeks after surgery and whether such a complication could have been predicted preoperatively.Patients and methodsA retrospective review was performed of 300 operations in 239 patients over a 9 month period at Moorfields Eye Hospital, London. Electronic medical record software was used to extract data regarding the timing of first postoperative review, complications, any return to theatre, and any underlying risk factors or co-morbidities.ResultsAt 1 week 44 % (133) cases were reviewed, 30% (89) at 2 weeks, 17% (50) at 3 weeks, and 9% (28) at 4 or more weeks. The overall complication rate at any time during the 6-week follow-up interval was 8%. The majority of these complications were minor (24 eyes, 8%) and 1 was major (0.3%). Of the 25 complications, an underlying risk factor was identified in 14 cases.ConclusionsThese data indicate that postoperative complications are very low in the absence of preoperative risk factors. In our institution, as the risk of overcorrection is low, most patients without risk factors for exposure (51% in this series) can safely be reviewed later than 1 week after surgery, but for those with risk factors earlier follow-up is warranted. PMID- 29328064 TI - South African Eye Study (SAES): ethnic differences in central corneal thickness and intraocular pressure. AB - PurposeGlaucoma is the leading cause of irreversible blindness worldwide. South Africa has a diverse population but there is a lack of published ethnic specific normative data. The purpose of the study is to determine the distribution of intraocular pressure (IOP) and central corneal thickness (CCT) values in a multi ethnic South African population and to determine additional systemic and ocular factors that influence IOP and CCT.Patients and methodsThis cross-sectional study included a total of 402 participants with 706 eyes aged 18-94 years. Participants underwent a standardized interviewer-administered questionnaire for risk factor assessment followed by a full ophthalmic examination. The averages of six IOP readings were measured with an Icare PRO tonometer and CCT was measured with a Pentacam.ResultsThe mean CCT readings in the African, Mixed ethnicity, and Caucasian participants were 514.77+/-31.86, 531.77+/-35.17, and 549.97+/-30.51 MUm (P<0.001). The mean IOP in the African, Mixed ethnicity, and Caucasian participants were 15.51+/-2.49, 15.09+/-2.12, and 15.13+/-2.53 mm Hg (P=0.07). Africans had significantly higher IOP than Mixed ethnicity (P=0.034) and Caucasians (P=0.011). Hypertensives had a higher IOP (P=0.03). Age and pseudophakia were associated with a lower IOP (P<0.001) and higher CCT (P<0.001). There was a strongly positive correlation between CCT and IOP (beta=0.021; P<0.001).ConclusionsIn the South African Eye Study (SAES), Africans had the thinnest corneas and highest IOP followed by Mixed ethnicity and Caucasians. Including systemic and ocular factors that influence IOP specific to each population and ethnic group, will lead to a more accurate clinical risk stratification in glaucoma management. PMID- 29328063 TI - Immune loss as a driver of coexistence during host-phage coevolution. AB - Bacteria and their viral pathogens face constant pressure for augmented immune and infective capabilities, respectively. Under this reciprocally imposed selective regime, we expect to see a runaway evolutionary arms race, ultimately leading to the extinction of one species. Despite this prediction, in many systems host and pathogen coexist with minimal coevolution even when well-mixed. Previous work explained this puzzling phenomenon by invoking fitness tradeoffs, which can diminish an arms race dynamic. Here we propose that the regular loss of immunity by the bacterial host can also produce host-phage coexistence. We pair a general model of immunity with an experimental and theoretical case study of the CRISPR-Cas immune system to contrast the behavior of tradeoff and loss mechanisms in well-mixed systems. We find that, while both mechanisms can produce stable coexistence, only immune loss does so robustly within realistic parameter ranges. PMID- 29328066 TI - A British Ophthalmological Surveillance Unit Study on metastatic endogenous endophthalmitis. AB - PurposeEndogenous endophthalmitis (EE) is a rare but serious ocular infection caused by the seeding of bacteria into the eye from a source elsewhere in the body. Studies suggest that EE accounts for 2 to 8% of all endophthalmitis.MethodsA prospective observational study was conducted using the British Ophthalmological Surveillance Unit reporting system. Questionnaires were sent to reporting Ophthalmologists in the UK to assess incidence, underlying aetiology, eye findings, management, and final outcomes in endogenous endophthalmitis over a 12-month period within the British Isles.ResultsSixty two cases reported with 48 initial questionnaires returned and 25 6-month follow-up questionnaires returned. The median age of patients affected was 57 years with youngest aged 2 years and oldest aged 85 years. Twenty three were male and 24 were female. The median visual acuity in the affected eye was 3 logMAR (range 0.1 to 5). Blood cultures were taken in 36 patients, 58% of which were positive. Vitreous biopsy was taken in 35 patients, 23% of which were culture positive. The visual function as assessed by visual acuity had significantly improved at 6 months with a median acuity of 0.18 logMAR (P=0.003).ConclusionsThe survey demonstrates the severe nature of endogenous endophthalmitis in patients with active infection or with risk factors for infection. Our study has demonstrated that at least half of the patients who were treated had significant vision improvement. PMID- 29328067 TI - A physical approach to model occlusions in the retinal microvasculature. AB - Blood occlusions in the retinal microvasculature contribute to the pathology of many disease states within the eye. These events can cause haemorrhaging and retinal detachment, leading to a loss of vision in the affected patient. Here, we present a physical approach to characterising the collective cell dynamics leading to plug formation, through the use of a bespoke microfluidic device, and through the derivation of a probabilistic model. Our microfluidic device is based on a filtration design that can tune the particle volume fraction of a flowing suspension within a conduit, with sizes similar to arterioles. This allows us to control and reproduce an occlusive event. The formation of the occlusion can be examined through the extracted motion of particles within the channel, which enables the assessment of individual and collective particle dynamics in the time leading to the clogging event. In particular, we observe that at the onset of the occlusion, particles form an arch bridging the channel walls. The data presented here inform the development of our mathematical model, which captures the essential factors promoting occlusions, and notably highlights the central role of adhesion in these processes. Both the physical and probabilistic models rely on significant approximations, and future investigation will seek to assess these approximations, including the deformability and complex flow profiles of the blood constituents. However, we anticipate that the general mechanisms of occlusion may be elucidated from these simple models. As microvascular flows in the eye can now be measured in vivo and non-invasively with single cell resolution, our model will also be compared to the pathophysiological characteristics of the human microcirculation. PMID- 29328068 TI - Indications for explant of implantable collamer lens. PMID- 29328069 TI - Inhibition of MUC1 biosynthesis via threonyl-tRNA synthetase suppresses pancreatic cancer cell migration. AB - Mucin1 (MUC1), a heterodimeric oncoprotein, containing tandem repeat structures with a high proportion of threonine, is aberrantly overexpressed in many human cancers including pancreatic cancer. Since the overall survival rate of pancreatic cancer patients has remained low for several decades, novel therapeutic approaches are highly needed. Intestinal mucin has been known to be affected by dietary threonine supply since de novo synthesis of mucin proteins is sensitive to luminal threonine concentration. However, it is unknown whether biosynthesis of MUC1 is regulated by threonine in human cancers. In this study, data provided suggests that threonine starvation reduces the level of MUC1 and inhibits the migration of MUC1-expressing pancreatic cancer cells. Interestingly, knockdown of threonyl-tRNA synthetase (TRS), an enzyme that catalyzes the ligation of threonine to its cognate tRNA, also suppresses MUC1 levels but not mRNA levels. The inhibitors of TRS decrease the level of MUC1 protein and prohibit the migration of MUC1-expressing pancreatic cancer cells. In addition, a positive correlation between TRS and MUC1 levels is observed in human pancreatic cancer cells. Concurrent with these results, the bioinformatics data indicate that co-expression of both TRS and MUC1 is correlated with the poor survival of pancreatic cancer patients. Taken together, these findings suggest a role for TRS in controlling MUC1-mediated cancer cell migration and provide insight into targeting TRS as a novel therapeutic approach to pancreatic cancer treatment. PMID- 29328070 TI - Nerve growth factor upregulates sirtuin 1 expression in cholestasis: a potential therapeutic target. AB - This study investigated the regulatory role of nerve growth factor (NGF) in sirtuin 1 (SIRT1) expression in cholestatic livers. We evaluated the expression of NGF and its cognate receptors in human livers with hepatolithiasis and the effects of NGF therapy on liver injury and hepatic SIRT1 expression in a bile duct ligation (BDL) mouse model. Histopathological and molecular analyses showed that the hepatocytes of human diseased livers expressed NGF, proNGF (a precursor of NGF), TrkA and p75NTR, whereas only p75NTR was upregulated in hepatolithiasis, compared with non-hepatolithiasis livers. In the BDL model without NGF therapy, p75NTR, but not TrkA antagonism, significantly deteriorated BDL-induced liver injury. By contrast, the hepatoprotective effect of NGF was abrogated only by TrkA and not by p75NTR antagonism in animals receiving NGF therapy. Intriguingly, a positive correlation between hepatic SIRT1 and NGF expression was found in human livers. In vitro studies demonstrated that NGF upregulated SIRT1 expression in mouse livers and human Huh-7 and rodent hepatocytes. Both NGF and proNGF induced protective effects against hydrogen peroxide-induced cytotoxicity in Huh 7 cells, whereas inhibition of TrkA and p75NTR activity prevented oxidative cell death. Mechanistically, NGF, but not proNGF, upregulated SIRT1 expression in human Huh-7 and rodent hepatocytes via nuclear factor (NF)-kappaB activity, whereas NGF-induced phosphoinositide-3 kinase/Akt, extracellular signal-regulated kinase and NF-kappaB signaling and SIRT1 activity were involved in its hepatoprotective effects against oxidative injury. These findings suggest that pharmacological manipulation of the NGF/SIRT1 axis might serve as a novel approach for the treatment of cholestatic disease. PMID- 29328073 TI - Introduction to electromagnetic scattering: tutorial. AB - In this paper, an introduction to electromagnetic scattering is presented. We introduce the basic concepts needed to face a scattering problem, including the scattering, absorption, and extinction cross sections. We define the vector harmonics and we present some of their properties. Finally, we tackle the two canonical problems of the scattering by an infinitely long circular cylinder, and by a sphere, showing that the introduction of the vector wave function makes the imposition and solution of the boundary conditions particularly simple. PMID- 29328074 TI - Needles of light produced with a quasi-parabolic mirror. AB - We propose a quasi-parabolic mirror that can produce a long needle of light by focusing a radially polarized annular beam. The quasi-parabolic mirror can be acquired by moving the axis of rotation of a parabolic mirror. Using the extended Richards-Wolf theory for axisymmetric surfaces, we calculated that the needle obtained can have a longitudinal FWHM over hundreds to thousands of wavelengths by keeping the transverse FWHM under 0.36lambda. The consistent expression of the approximate relationship between the angular thickness of the incident beam and the longitudinal FWHM based on both geometrical optics and wave optics is presented. PMID- 29328071 TI - Sumoylation of histone deacetylase 1 regulates MyoD signaling during myogenesis. AB - Sumoylation, the conjugation of a small ubiquitin-like modifier (SUMO) protein to a target, has diverse cellular effects. However, the functional roles of the SUMO modification during myogenesis have not been fully elucidated. Here, we report that basal sumoylation of histone deacetylase 1 (HDAC1) enhances the deacetylation of MyoD in undifferentiated myoblasts, whereas further sumoylation of HDAC1 contributes to switching its binding partners from MyoD to Rb to induce myocyte differentiation. Differentiation in C2C12 skeletal myoblasts induced new immunoblot bands above HDAC1 that were gradually enhanced during differentiation. Using SUMO inhibitors and sumoylation assays, we showed that the upper band was caused by sumoylation of HDAC1 during differentiation. Basal deacetylase activity was not altered in the SUMO modification-resistant mutant HDAC1 K444/476R (HDAC1 2R). Either differentiation or transfection of SUMO1 increased HDAC1 activity that was attenuated in HDAC1 2R. Furthermore, HDAC1 2R failed to deacetylate MyoD. Binding of HDAC1 to MyoD was attenuated by K444/476R. Binding of HDAC1 to MyoD was gradually reduced after 2 days of differentiation. Transfection of SUMO1 induced dissociation of HDAC1 from MyoD but potentiated its binding to Rb. SUMO1 transfection further attenuated HDAC1-induced inhibition of muscle creatine kinase luciferase activity that was reversed in HDAC1 2R. HDAC1 2R failed to inhibit myogenesis and muscle gene expression. In conclusion, HDAC1 sumoylation plays a dual role in MyoD signaling: enhancement of HDAC1 deacetylation of MyoD in the basally sumoylated state of undifferentiated myoblasts and dissociation of HDAC1 from MyoD during myogenesis. PMID- 29328075 TI - Digital Holography and 3D Imaging: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A. AB - The OSA Topical Meeting on Digital Holography and 3D Imaging (DH) was held 29 May to 1 June 2017 on Jeju Island, South Korea. Feature issues based on the DH meeting series have been released by Applied Optics (AO) since 2007. This year, AO and the Journal of the Optical Society of America A (JOSA A) jointly decided to have one such feature issue in each journal. This feature issue includes 33 papers in AO and 9 in JOSA A and covers a large range of topics, reflecting the rapidly expanding techniques and applications of digital holography and 3D imaging. The upcoming DH meeting (DH 2018) will be held 25-28 June 2018 in Orlando, Florida, as part of the OSA Imaging and Applied Optics Congress. PMID- 29328072 TI - Immunomodulatory effect of CD200-positive human placenta-derived stem cells in the early phase of stroke. AB - Human placenta amniotic membrane-derived mesenchymal stem cells (AMSCs) regulate immune responses, and this property can be exploited to treat stroke patients via cell therapy. We investigated the expression profile of AMSCs cultured under hypoxic conditions and observed interesting expression changes in various genes involved in immune regulation. CD200, an anti-inflammatory factor and positive regulator of TGF-beta, was more highly expressed under hypoxic conditions than normoxic conditions. Furthermore, AMSCs exhibited inhibition of pro-inflammatory cytokine expression in co-cultures with LPS-primed BV2 microglia, and this effect was decreased in CD200-silenced AMSCs. The AMSCs transplanted into the ischemic rat model of stroke dramatically inhibited the expression of pro-inflammatory cytokines and up-regulated CD200, as compared with the levels in the sham-treated group. Moreover, decreased microglia activation in the boundary region and improvements in behavior were confirmed in AMSC-treated ischemic rats. The results suggested that the highly expressed CD200 from the AMSCs in a hypoxic environment modulates levels of inflammatory cytokines and microglial activation, thus increasing the therapeutic recovery potential after hypoxic-ischemic brain injury, and further demonstrated the immunomodulatory function of AMSCs in a stroke model. PMID- 29328076 TI - Analysis of 3D plasmonic circuits by using surface impedance models. AB - Novel and accurate global and local surface impedance models have been developed to analyze plasmonic circuits fast and efficiently. In the analysis procedure, first the metal strip in the plasmonic circuit is modeled by a surface impedance. Then, the calculated surface impedance is employed in the surface integral equation to analyze the plasmonic circuit such as a through line and line coupler. Accuracy of the numerical results is shown in comparison with a commercial simulation software. The number of unknowns as well as the computational time are also compared with the volume integral equation, and it is obvious that, using our proposed surface impedance models, the analysis will be much faster and more efficient. This could have been evident from the beginning because usage of the surface impedance model helps bring the unknowns to the boundary of the structure, which reduces the number of unknowns. PMID- 29328077 TI - Computational multispectral video imaging [Invited]. AB - Multispectral imagers reveal information unperceivable to humans and conventional cameras. Here, we demonstrate a compact single-shot multispectral video-imaging camera by placing a micro-structured diffractive filter in close proximity to the image sensor. The diffractive filter converts spectral information to a spatial code on the sensor pixels. Following a calibration step, this code can be inverted via regularization-based linear algebra to compute the multispectral image. We experimentally demonstrated spectral resolution of 9.6 nm within the visible band (430-718 nm). We further show that the spatial resolution is enhanced by over 30% compared with the case without the diffractive filter. We also demonstrate Vis-IR imaging with the same sensor. Because no absorptive color filters are utilized, sensitivity is preserved as well. Finally, the diffractive filters can be easily manufactured using optical lithography and replication techniques. PMID- 29328078 TI - Special ciphertext-only attack to double random phase encryption by plaintext shifting with speckle correlation. AB - In this paper, a special ciphertext-only attack (COA) scenario to the traditional double random phase encoding (DRPE) technique is proposed based on plaintext shifting. We assume the attacker can illegally manipulate the DRPE system to gain multiple ciphertexts from randomly shifted versions of the same plaintext. The plaintext image can be recovered when our proposed scenario is combined with a speckle correlation attacking method proposed in previous work. Simulation results demonstrate that our proposed scheme can successfully crack the DRPE system even when the speckle correlation method alone fails to work in the conventional single ciphertext scenario due to the small size of the plaintext image. The work in this paper reveals a severe security flaw of DRPE systems when minor position shifting of the plaintext occurs. PMID- 29328079 TI - High-resolution coherent x-ray diffraction imaging of metal-coated polymer microspheres. AB - Coherent x-ray diffraction imaging (CXDI) is becoming an important 3D quantitative microscopy technique, allowing structural investigation of a wide range of delicate mesoscale samples that cannot be imaged by other techniques like electron microscopy. Here we report high-resolution 3D CXDI performed on spherical microcomposites consisting of a polymer core coated with a triple layer of nickel-gold-silica. These composites are of high interest to the microelectronics industry, where they are applied in conducting adhesives as fine pitch electrical contacts-which requires an exceptional degree of uniformity and reproducibility. Experimental techniques that can assess the state of the composites non-destructively, preferably also while embedded in electronic chips, are thus in high demand. We demonstrate that using CXDI, all four different material components of the composite could be identified, with radii matching well to the nominal specifications of the manufacturer. Moreover, CXDI provided detailed maps of layer thicknesses, roughnesses, and defects such as holes, thus also facilitating cross-layer correlations. The side length of the voxels in the reconstruction, given by the experimental geometry, was 16 nm. The effective resolution enabled resolving even the thinnest coating layer of ~20 nm nominal width. We discuss critically the influence of the weak phase approximation and the projection approximation on the reconstructed electron density estimates, demonstrating that the latter has to be employed. We conclude that CXDI has excellent potential as a metrology tool for microscale composites. PMID- 29328080 TI - Subsurface metrology using scanning white light interferometry: absolute z coordinates deep inside displays. AB - Mobile devices with interactive displays are ubiquitous commodities. Efficient quality control (QC) drives competitiveness. Scanning white light interferometry imaging offers a fast and nondestructive tool for QC purposes. Relying on optical compensation and image stitching, one can rapidly and cost-effectively produce sharp 3D images of a display's inner structures with a few nanometers' accuracy along the z direction. As a practical example, 3D images of a mobile device display revealed 0.92+/-0.02 MUm height variation in the top glass assembly. The proposed method improves quality assurance methods of display manufacturing. PMID- 29328081 TI - Is QR code an optimal data container in optical encryption systems from an error correction coding perspective? AB - Quick response (QR) code has been employed as a data carrier for optical cryptosystems in many recent research works, and the error-correction coding mechanism allows the decrypted result to be noise free. However, in this paper, we point out for the first time that the Reed-Solomon coding algorithm in QR code is not a very suitable option for the nonlocally distributed speckle noise in optical cryptosystems from an information coding perspective. The average channel capacity is proposed to measure the data storage capacity and noise-resistant capability of different encoding schemes. We design an alternative 2D barcode scheme based on Bose-Chaudhuri-Hocquenghem (BCH) coding, which demonstrates substantially better average channel capacity than QR code in numerical simulated optical cryptosystems. PMID- 29328082 TI - Linear iterative near-field phase retrieval (LIPR) for dual-energy x-ray imaging and material discrimination. AB - Near-field x-ray refraction (phase) contrast is unavoidable in many lab-based micro-CT imaging systems. Quantitative analysis of x-ray refraction (a.k.a. phase retrieval) is in general an under-constrained problem. Regularizing assumptions may not hold true for interesting samples; popular single-material methods are inappropriate for heterogeneous samples, leading to undesired blurring and/or over-sharpening. In this paper, we constrain and solve the phase-retrieval problem for heterogeneous objects, using the Alvarez-Macovski model for x-ray attenuation. Under this assumption we neglect Rayleigh scattering and pair production, considering only Compton scattering and the photoelectric effect. We formulate and test the resulting method to extract the material properties of density and atomic number from single-distance, dual-energy imaging of both strongly and weakly attenuating multi-material objects with polychromatic x-ray spectra. Simulation and experimental data are used to compare our proposed method with the Paganin single-material phase-retrieval algorithm, and an innovative interpretation of the data-constrained modeling phase-retrieval technique. PMID- 29328083 TI - Topological charge measurement of concentric OAM states using the phase-shift method. AB - We proposed a method to measure orbital angular momentum (OAM) states by using a multi-zone pure phase grating with the phase-shift technique. In free-space optical communication systems, the topological charges (TCs) of concentric OAM beams are usually detected for decoding, since the diameter of the OAM beam relates to the transmission distance. Two typical concentric OAM beams, concentric Laguerre-Gaussian beams and perfect vortex beams, were generated as incident beams, and the diffraction patterns can be separated by implementing a pure phase grating in the Fourier plane of a 4-f system. By counting the corresponding diffraction fringes, we can identify the TCs of the two OAM states. The simulation results show that the diffraction angles of the concentric OAM beams can be controlled and two concentric OAM states can be measured simultaneously. PMID- 29328084 TI - Unified and accurate diffraction calculation between two concentric cylindrical surfaces. AB - A unified and accurate fast diffraction calculation between a pair of concentric cylindrical surfaces is proposed. Analysis of the obliquity factor shows that the physical meaning of it is the projection of the unit complex amplitude in the propagation direction onto the outer normal of the observation point. Therefore, a unified and accurate diffraction calculation formula for both inside-out and outside-in propagation models is achieved. Furthermore, it is accurately accelerated by a fast calculation method using fast Fourier transformation with a speed-up over 3.9*106, which is compared with the direct calculation method under resolution of 512*512 pixels. Through analysis and comparison, it is found that the computing error is significant in the approximate method of the inside-out propagation model, which releases the limitation of the ratios of the outer radius and the height to the inner radius of the cylinders. The simulation results are presented to verify the correctness and accuracy of our proposal. PMID- 29328085 TI - Reference-free metric for quantitative noise appraisal in holographic phase measurements. AB - This paper presents a reference-free metric for quantitative appraisal of de noising algorithms for phase measurements in digital holography. In the literature, quality metrics are not self-contained because they require a noise free reference phase fringe pattern in order to be computed. In practical situations, no exact phase is available to evaluate the quality of processing. In order to bypass such limitations, one needs a metric directly capable of providing information on how efficient the filtering is, without any help from any reference measurements and by only considering the measured available phase data. This paper presents a novel reference-free metric, called estimated phase error for quantitative appraisal of de-noising algorithms for noisy phase data processing. This metric is based on the computation of an estimator of the standard deviation of the phase error between data processed with an external algorithm and that from the evaluated algorithm. A benchmark, including 37 different de-noising algorithms, demonstrates that the proposed metric is capable of producing the same rankings as those obtained with classical metrics, requiring a reference phase. Application to phase data from mechanical testing demonstrates that the ranking obtained from experimental phase data is similar to that obtained during the benchmarking with simulated data. PMID- 29328086 TI - Geometric optics of a refringent sphere illuminated by a point source: caustics, wavefronts, and zero phase-fronts for every rainbow "k" order. AB - This study relates to a refringent sphere illuminated by a point source placed at a distance h from its center; for h->infinity the light beam becomes parallel. A selection of variables, principally angular with the center of the sphere as a common point, allows a global, straightforward, and geometrically transparent way to the rays, caustics, and wavefronts, internal as well as external, for every k order, k being the number of internal reflections. One obtains compact formulas for generating the rays and the wavefronts. PMID- 29328087 TI - Theoretical modeling and design of photonic structures in zeolite nanocomposites for gas sensing. Part II: volume gratings. AB - The suitability of holographic structures fabricated in zeolite nanoparticle polymer composite materials for gas sensing applications has been investigated. Theoretical modeling of the sensor response (i.e., change in hologram readout due to a change in refractive index modulation or thickness as a result of gas adsorption) of different sensor designs was carried out using the Raman-Nath theory and Kogelnik's coupled wave theory. The influence of a range of parameters on the sensitivity of holographically recorded surface and volume photonic structures has been studied, namely, hologram geometry, hologram thickness and spatial frequency, reconstruction wavelength, and zeolite nanoparticle refractive index. From this, the optimum fabrication conditions for both surface and volume holographic gas sensor designs have been identified. Here in Part II, results from modeling of the influence of design on the sensor response of holographically recorded volume grating structures for gas sensing applications are reported. PMID- 29328088 TI - Determination of the optimum double-pass image through focus operators. AB - A set of autofocus operators (AFO) are assessed for their ability to determine the optimal double-pass image as well as their potential to detect the focus lines and the disc of least confusion in astigmatic eyes. Eight AFO and three optical quality parameters (OQP) often used to analyze double-pass aerial images were considered. To quantify the discriminative power of each AFO and OQP, a maximum discrimination (MD) parameter was proposed. Double-pass images were obtained from an artificial eye with an induced astigmatism (Cylinder: -1 D, 0.75 D, 0.75 D, 1 D) and without astigmatism (Sphere: 0.1 D) and from 19 eyes of subjects with different refractions. The MD values for the autofocus operators Tenengrad variance and Gray level local variance were the highest for the artificial eye with and without astigmatism. In the case of astigmatic eyes, the discrimination of the focus lines with the autofocus operator Tenengrad variance was better than with OQP. PMID- 29328089 TI - Generation of vector Bessel beams with diffractive phase elements based on the Jacobi-Anger expansion. AB - We report the design and optimization of a diffractive phase element whose phase modulation is derived from the Jacobi-Anger relation, which allows the simultaneous generation of multiple scalar Bessel beams of different integer orders. In addition, by the appropriate treatment of a couple of such Bessel beams, we generate a vector Bessel beam of arbitrary order m. This beam is constructed by the collinear superposition of the scalar Bessel beam modes of orders m-1 and m+1, with circular orthogonal polarizations. We demonstrate experimentally both the simultaneous generation of the multiple scalar Bessel beams and the generation of vector Bessel beams of orders m=0 and m=1. These tasks are performed in an optical setup based on a pixelated liquid-crystal spatial light modulator. PMID- 29328090 TI - Built-up index methods and their applications for urban extraction from Sentinel 2A satellite data: discussion. AB - Several built-up indices have been proposed in the literature in order to extract the urban sprawl from satellite data. Given their relative simplicity and easy implementation, such methods have been widely adopted for urban growth monitoring. Previous research has shown that built-up indices are sensitive to different factors related to image resolution, seasonality, and study area location. Also, most of them confuse urban surfaces with bare soil and barren land covers. By gathering the existing built-up indices, the aim of this paper is to discuss some of their advantages, difficulties, and limitations. In order to illustrate our study, we provide some application examples using Sentinel 2A data. PMID- 29328091 TI - Iterative design of diffractive elements made of lossy materials. AB - Diffractive surface relief elements made of lossy materials exhibit phase dependent absorption, which not only reduces the efficiency but also distorts the signal if the surface profile is realized on the basis of a phase-only design. We introduce an extension of the iterative Fourier transform algorithm, which accounts for such phase-dependent absorption, and present examples of its application to the design of diffractive beam splitters. The operator required for taking absorption into account is chosen to maximize the efficiency of the found design. PMID- 29328092 TI - Talbot carpet at the transverse plane produced in the diffraction of plane wave from amplitude radial gratings. AB - We experimentally demonstrate and theoretically predict a new and unprecedented optical carpet that includes all the geometric shadow and far-field and near field diffraction patterns at the transverse plane in the diffraction from a radial grating illuminated by a plane wavefront. The main feature of using radial grating is the continuous change of the spatial period along the radial direction. Therefore, the geometric shadow, and the near-field and far-field diffraction regimes are mixed at various propagation distances, and the traditional definitions for the different diffraction regimes would not apply here. We show that for a given propagation distance, at a certain radial distance the shadow regime changes to the near-field regime and at another certain radial distance, the diffraction pattern changes from a near-field to a far-field case. PMID- 29328093 TI - Trajectories on the Poincare sphere of polarization states of a beam passing through a rotating linear retarder. AB - The emerging polarization states from a linearly polarized monochromatic light passing through a rotating linear quarter-wave plate have been characterized as the intersection curve of a cylinder and the Poincare sphere. But in the cases where the input polarization states are in general elliptical or circular and pass through a rotating linear retarder, the emerging polarization states produce trajectories that do not correspond to the intersection of a sphere with one cylinder. Hence, in this work, we present a full characterization of the trajectories on the Poincare sphere for monochromatic input beams with an arbitrary polarization state passing through a rotating linear retarder as the intersection curve of the Poincare sphere with a cone. Moreover, it is shown that these trajectories are characterized by their projection on the equator plane, having the form of limacon of Pascal (Pascal's snails). PMID- 29328094 TI - Matched and wideband flat lens antennas using symmetric graded dielectrics. AB - Matched and wideband flat lens antennas using a two-dimensional symmetric graded dielectric (SGD) are considered. An explicit relation for refractive index of this type of antenna is presented. This design relation is obtained in two steps. The variations of refractive index are determined first in the radial direction and then in the axial direction. Additionally, reflector-lens antennas are introduced using two-dimensional SGD. The validity of design methodology is verified by simulation. PMID- 29328095 TI - Experimental comparison of single-pixel imaging algorithms. AB - Single-pixel imaging (SPI) is a novel technique that captures 2D images using a photodiode, instead of conventional 2D array sensors. SPI has high signal-to noise ratio, wide spectral range, low cost, and robustness to light scattering. Various algorithms have been proposed for SPI reconstruction, including linear correlation methods, the alternating projection (AP) method, and compressive sensing (CS) based methods. However, there has been no comprehensive review discussing respective advantages, which is important for SPI's further applications and development. In this paper, we review and compare these algorithms in a unified reconstruction framework. We also propose two other SPI algorithms, including a conjugate gradient descent (CGD) based method and a Poisson maximum-likelihood-based method. Both simulations and experiments validate the following conclusions: to obtain comparable reconstruction accuracy, the CS-based total variation (TV) regularization method requires the fewest measurements and consumes the least running time for small-scale reconstruction, the CGD and AP methods run fastest in large-scale cases, and the TV and AP methods are the most robust to measurement noise. In a word, there are trade-offs in capture efficiency, computational complexity, and robustness to noise among different SPI algorithms. We have released our source code for non-commercial use. PMID- 29328096 TI - Approximate Bayesian computation techniques for optical characterization of nanoparticle clusters. AB - Characterization of nanoparticle aggregates from observed scattered light leads to a highly complex inverse problem. Even the forward model is so complex that it prohibits the use of classical likelihood-based inference methods. In this study, we compare four so-called likelihood-free methods based on approximate Bayesian computation (ABC) that requires only numeric simulation of the forward model without the need of evaluating a likelihood. In particular, rejection, Markov chain Monte Carlo, population Monte Carlo, and adaptive population Monte Carlo (APMC) are compared in terms of accuracy. In the current model, we assume that the nanoparticle aggregates are mutually well separated and made up of particles of same size. Filippov's particle-cluster algorithm is used to generate aggregates, and discrete dipole approximation is used to estimate scattering behavior. It is found that the APMC algorithm is superior to others in terms of time and acceptance rates, although all algorithms produce similar posterior distributions. Using ABC techniques and utilizing unpolarized light experiments at 266 nm wavelength, characterization of soot aggregates is performed with less than 2 nm deviation in nanoparticle radius and 3-4 deviation in number of nanoparticles forming the monodisperse aggregates. Promising results are also observed for the polydisperse aggregate with log-normal particle size distribution. PMID- 29328097 TI - Temperature dependence of Brewster's angle. AB - In this work, a dielectric at a finite temperature is modeled as an ensemble of identical atoms moving randomly around where they are trapped. Light reflection from the dielectric is then discussed in terms of atomic radiation. Specific calculation demonstrates that because of the atoms' thermal motion, Brewster's angle is, in principle, temperature-dependent, and the dependence is weak in the low-temperature limit. What is also found is that the Brewster's angle is nothing but a result of destructive superposition of electromagnetic radiation from the atoms. PMID- 29328098 TI - Demonstration of single-shot digital holography using a Bayesian framework. AB - In this paper, we present experimental results for image reconstruction, with isoplanatic phase-error correction, from single-shot digital holography data. We demonstrate the utility of using a model-based iterative reconstruction (MBIR) algorithm to jointly compute the maximum a posteriori estimates of the phase errors and the real-valued object reflectance function. Specifically, we show that the MBIR algorithm is robust to noise and phase errors over a range of conditions. PMID- 29328099 TI - Incoherent component of light scattered by a monolayer of spherical particles: analysis of angular distribution and absorption of light. AB - We have derived an analytical solution for an incoherent component of light scattered by a normally illuminated monolayer of homogeneous spherical particles. It is based on the quasi-crystalline approximation of the theory of multiple scattering of waves as well as on the multipole expansion of electromagnetic fields and tensor Green's function in terms of vector spherical wave functions. We apply the solution to a description of scattering and absorption characteristics of partially ordered monolayers and monolayers with imperfect lattices. The impact of particle size and type of particle spatial order on light absorption is studied. The comparison of calculated and available experimental data is made on the angular and spectral position of the first diffraction order peak for a monolayer with an imperfect triangular lattice from silicon dioxide particles. The theoretical and experimental data are in close agreement. PMID- 29328100 TI - High-Q all-dielectric thermal emitters for mid-infrared gas-sensing applications. AB - A simple all-dielectric thermal emitter unit cell for narrowband gas-sensing application is proposed, providing large Q-factors compared to its plasmonic counterpart. It consists of a high-index dielectric-based elliptical puck on top of a back-reflector, providing narrowband thermal emission. Using full-wave simulations, it is demonstrated that the achievable Q-factors in this structure are orders of magnitude larger than what have been shown for plasmonic cells, thanks to their low-loss electrical characteristics. Furthermore, the thermal emission properties can be engineered by manipulating the geometry of the unit cell, whereby it is shown that these unit cells can provide polarized thermal emission simultaneously in two separate frequency bands, with identical Q-factor characteristics, depending on their ellipticity parameter. PMID- 29328101 TI - Precision of proportion estimation with binary compressed Raman spectrum. AB - The precision of proportion estimation with binary filtering of a Raman spectrum mixture is analyzed when the number of binary filters is equal to the number of present species and when the measurements are corrupted with Poisson photon noise. It is shown that the Cramer-Rao bound provides a useful methodology to analyze the performance of such an approach, in particular when the binary filters are orthogonal. It is demonstrated that a simple linear mean square error estimation method is efficient (i.e., has a variance equal to the Cramer-Rao bound). Evolutions of the Cramer-Rao bound are analyzed when the measuring times are optimized or when the considered proportion for binary filter synthesis is not optimized. Two strategies for the appropriate choice of this considered proportion are also analyzed for the binary filter synthesis. PMID- 29328102 TI - A new year, new editors, and new honors: editorial. AB - Editor-in-Chief P. Scott Carney congratulates recent awardees and introduces the Journal's newest Topical Editors. PMID- 29328103 TI - Mode diversity of weakly modulated cavity antennas. AB - The radiating mode of a cavity antenna at a particular frequency is fixed. However, by actively modulating the permittivity inside the cavity, the radiating mode may be changed. Using time-independent perturbation theory, we derive the modes of a cavity perturbed by many modulating elements. It is found that with a sufficient number of modulators of sufficient strength, the number of unique fields radiated by the cavity may reach a limit determined by the number of unperturbed cavity modes. The number of addressable radiated fields increases exponentially with the number of modulators; however, perturbations involving the interaction of several modulators become progressively weaker. For antennas at millimeter and terahertz frequencies, such cavity antennas can realize a great diversity of radiation patterns using fewer active devices, better exploiting the diversity achieved by each added modulator. PMID- 29328104 TI - Statistical properties of single-mode fiber coupling of satellite-to-ground laser links partially corrected by adaptive optics. AB - In the framework of satellite-to-ground laser downlinks, an analytical model describing the variations of the instantaneous coupled flux into a single-mode fiber after correction of the incoming wavefront by partial adaptive optics (AO) is presented. Expressions for the probability density function and the cumulative distribution function as well as for the average fading duration and fading duration distribution of the corrected coupled flux are given. These results are of prime interest for the computation of metrics related to coded transmissions over correlated channels, and they are confronted by end-to-end wave-optics simulations in the case of a geosynchronous satellite (GEO)-to-ground and a low earth orbit satellite (LEO)-to-ground scenario. Eventually, the impact of different AO performances on the aforementioned fading duration distribution is analytically investigated for both scenarios. PMID- 29328105 TI - Validity of ultrasound-guided aspiration needle biopsy in the diagnosis of micrometastases in sentinel lymph nodes in patients with cutaneous melanoma. AB - Background/Aim: Cutaneous melanoma is one of the most aggressive solid cancers, that develops local, regional and distant metastases. The presence of metastases in lymph nodes is in correlation with Breslow tumor thickness. According to various researches, in melanoma with more than 4 mm Breslow thickness, lymph node micrometastases can be found in 60-70% of cases. Sentinel lymph nodes biopsy is a diagnostic procedure for lymph node micrometastasis detection, which is necessary for disease staging. In recent studies, ultrasound-guided fine needle aspiration with cytology (US FNAC) of the sentinel lymph node was used as less invasive procedure, but is not accepted as the standard procedure. The goal of this work was to define sensitivity, specification and precision of the ultrasound-guided fine needle aspiration method in comparison with standard sentinel lymph node biopsy. Methods: After obtaining the Ethics Committee's permission, from 2012 to 2014 a total of 60 patients with cutaneous melanoma were enrolled, and divided into three groups: group I with thin melanoma, group II with intermediate thickness melanoma and group III with thick melanoma. The presence of micrometastases in sentinel regional lymph nodes was analyzed by US FNAC. The results obtained were compared to sentinel lymph nodes biopsy (SLNB) results. The golden standard for calculating the specific, sensitive and precise characteristics of the method of US FNAC of sentinel lymph nodes was histopathologic lymph node examination of sentinel lymph nodes acquired through biopsy. Results: Detection rate of US FNAC was 0% in the group I, 5% in the group II and 30% in the group III. SLNB detection rates were: 10% in the group I, 15% in the group II, and 45% in the group III. In melanoma thicker than 4 mm, 15% of the patients were false negative by US FNAC. The sensitivity of US FNAC for all the patients was 50%: in the group I, 0%; in the group II, 33.3%; and in the group III, 66.6%. The method specificity for all examined patients was 100% and accuracy 88%: group I, 90%; group II, 90%; group III, 85%. The FNAC and SLNB micrometastasis detection rate was significantly higher in melanoma with Breslow thickness > 4 mm (group 3) in comparison to thin and intermediate thickness tumors. Conclusion: The method of ultrasound-guided fine needle aspiration of sentinel lymph nodes, according to its sensitivity, has a place in the diagnostics of micrometastasis in regional lymph nodes only in thick melanoma, but not in thin and intermediary thickness melanoma. The results must be confirmed in a larger number of patients. If this observation could be confirmed, it would rationalize treatment of patients with thick melanoma, decrease the number of operations and shorten the time to make the diagnosis. PMID- 29328106 TI - Polymer thermal optical switch for a flexible photonic circuit. AB - Flexible and wearable optoelectronic devices are the new trend for an active lifestyle. These devices are polymer-based for flexibility. We demonstrated flexible polymer waveguide optical switches for a flexible photonic integrated circuit. The optical switches are composed of a single-mode inverted waveguide with dimensions of 5 MUm waveguide width, 3 MUm ridge height, and 3 MUm slab height. A Mach-Zehnder structure was used in the device, with the Y-branch horizontal length of 0.1 cm, the distance between two heating branches of 30 MUm, and the heating branch length of 1 cm. The optical field of the device was simulated by beam propagation to optimize the electrode position. The switching properties of the flexible optical switch with different working conditions, such as contact to the polymer, silicon, and skin, were simulated. The device was prepared based on the photo curved polymer and lithography method. The end faces of the flexible film device were processed using an excimer laser with optimized parameters of 28 mJ/cm2 and 15 Hz. The response rise time and fall time on the PMMA substrate were measured as 1.98 ms and 2.71 ms, respectively. The power consumption was 16 mW and the extinction ratio was 11 dB. The response rise and fall times on the Si substrate were measured as 1.08 ms and 1.62 ms, respectively. The power consumption was 17 mW and the extinction ratio was 11 dB. The demonstrated properties indicate that this flexible optical waveguide structure can be used in the light control area of a wearable device. PMID- 29328107 TI - Modulation transfer function of liquid crystal microlenses and microprisms using double dielectric layer. AB - We investigate electrically tunable liquid crystal (LC) microlenses and microprisms based on double dielectric optically hidden (DDOH) layers. Comparative theoretical study of the spatial resolution limits in the creation of a spatially modulated electric field by the DDOH layer is conducted. Both the depth of the resulting optical phase modulation and its deviation from the desired wavefront are obtained for sine and sawtooth geometries of the DDOH layer's structure. A comparison is provided with the standard LC reorientation approach using patterned electrodes. PMID- 29328108 TI - Numerical simulation and design of an apodized diffractive optical element composed of open-ring zones and pinholes. AB - In this paper, we investigate the relationship between open-ring zones of the Fresnel zone plate and the pinhole rings of photon sieves (PSs). Numerical simulations show that the normalized diffraction fields near the focal point of an individual pinhole ring and the circular open-ring zone are the same. It is confirmed that the maximum diffraction efficiency of an open-ring zone is higher than that of the traditional pinhole ring. Meanwhile, pinhole rings have more flexibility for apodization filtering. Based on these key findings, we propose the design theory of an apodized diffractive optical element comprised of open ring zones and pinholes. To validate the theory, we developed a design example. Compared with traditional apodized PSs, the new apodized diffractive element has a 50.19% higher energy efficiency, and the minimum pinhole size is enlarged by 30.77%. PMID- 29328109 TI - Distortion-compensated multifocusing of ultrashort pulse beams using cascade optical system. AB - We report a cascade optical system for multifocusing ultrashort pulse beams, particularly sub-50-fs pulses. System achromaticity is key to simultaneous compensation of the spatio-temporal pulse distortions. In this system, diffractive and refractive subsystems are optically coupled in cascade to correct chromatic aberrations, which are the primary cause of pulse distortion. We design a prototype system by applying achromatic conditions derived from an ABCD matrix analysis. The designed system is then evaluated using 20-fs pulses, by characterizing the transmitted pulses in terms of beam width and pulse duration; hence, the proposed distortion compensation scheme is validated. This pulse delivery system enables damage-free and high-throughput materials processing using ultrashort pulses. PMID- 29328110 TI - Modeling, simulation, and fabrication of bi-directional mode-division multiplexing for silicon-on-insulator platform. AB - A strip waveguide-based bi-directional mode-division multiplexer is proposed. A mathematical model has been proposed to analyze the performance, and the results are simulated. The design concept of this device to (de)multiplex three modes simultaneously has been studied previously for slab waveguides, both mathematically using the perturbative mode-coupled theory and by simulation using 2D FDTD Solutions (FDTD, finite difference time domain). As slab waveguides are not suitable for extracting fabrication parameters for most silicon-on-insulator applications, we apply the concept to a more practical device that involves strip waveguides rather than slab waveguides. The effective index method (EIM) has been used to develop the mathematical model and to get approximate forms for both the profiles and coupling coefficients. The return loss of different modes is taken into consideration to fully characterize the device performance. Simple formulas for both insertion and return losses of all multiplexing modes have been derived. In addition, full vectorial 3D FDTD simulations are performed so as to validate our mathematical model. Different design parameters have been used to get numerical results of the proposed device. Our results reveal that the EIM has enough accuracy to characterize the performance of our device compared to that of the complex full vectorial simulation. In order to validate the used model, the device has been fabricated and tested. Good insertion losses and crosstalks for all modes have been obtained. PMID- 29328111 TI - Development of a spatially dispersed short-coherence interferometry sensor using diffraction grating orders: publisher's note. AB - This publisher's note amends the author listing and the funding and acknowledgment sections in Appl. Opt.57, 6391 (2017)APOPAI0003 693510.1364/AO.56.006391. PMID- 29328112 TI - Design for a high birefringence photonic crystal fiber with multimode and low loss. AB - In this work, a novel design of a high birefringence photonic crystal fiber (HB PCF) with multimode and low confinement loss is proposed. To achieve high birefringence, the core is designed as an elliptical region, which is enclosed by twelve small holes. Based on this design, replacing the two circular holes at the top and bottom of the core region with two elliptical holes can further improve the birefringence. At the wavelength of 1.55 MUm, the birefringence of the fundamental mode (LP01) and the second-order mode (LP11) are 1.70*10-2 and 1.85*10-2, respectively. Meanwhile, the confinement losses maintain on orders of 1*10-5 dB/km (LP01) and 1*10-1 dB/km (LP11). After the effective refractive indices of two types of the proposed HB-PCF are calculated by the finite element method, the birefringence, confinement loss, bending loss, dispersion, and nonlinear coefficient are studied. These results reveal that the HB-PCF might be applied for polarization-maintaining and nonlinear optics. PMID- 29328113 TI - Spectroscopic study of a diffusion-bonded sapphire cell for hot metal vapors. AB - Characteristics of a diffusion-bonded sapphire cell for optical experiments with hot metal vapors were investigated. The sapphire cell consisted of sapphire crystal plates and a borosilicate-glass tube, which were bonded to each other by diffusion bonding without any binders or glues. The glass tube was attached to a vacuum manifold using the standard method applied in glass processing, filled with a small amount of Rb metal by chasing with a torch, and then sealed. The cell was baked at high temperatures, and optical experiments were then performed using rubidium atoms at room temperature. The sapphire cell was found to be vacuum tight, at least up to 350 degrees C, and the sapphire walls remained clear over all temperatures. From the optical experiments, the generation of a background gas was indicated after baking at 200 degrees C. The background gas pressure was low enough to avoid pressure broadening of absorption lines but high enough to cause velocity-changing collisions of Rb atoms. The generated gas pressure decreased at higher temperatures, probably due to chemical reactions. PMID- 29328114 TI - Sequences of the ranged amplitudes as a universal method for fast noninvasive characterization of SPAD dark counts. AB - Single-photon detectors based on avalanche photodiodes (SPADs) are key elements of many modern highly sensitive optical systems. One of the bottlenecks of such detectors is an afterpulsing effect, which limits detection rate and requires an optimal hold-off time. In this paper, we propose a novel approach for statistical analysis of SPAD dark counts, and we demonstrate its usefulness for the search of the experimental condition where the afterpulsing effect can be strongly eliminated. This approach exploits a sequence of ranked time intervals between the dark counts and does not contain a complex mathematical analysis of the experimental data. We show that the approach can be efficiently applied for a small number of the dark counts, and it seems to be very beneficial for practical fast characterization of SPAD devices. PMID- 29328115 TI - Digital Holography and 3D Imaging: introduction to the joint feature issue in Applied Optics and Journal of the Optical Society of America A. AB - The OSA Topical Meeting on Digital Holography and 3D Imaging (DH) was held 29 May to 1 June 2017 in Jeju Island, South Korea. Feature issues based on the DH meeting series have been released by Applied Optics (AO) since 2007. This year, AO and the Journal of the Optical Society of America A (JOSA A) jointly decided to have one such feature issue in each journal. This feature issue includes 33 papers in AO and 9 in JOSA A and covers a large range of topics, reflecting the rapidly expanding techniques and applications of digital holography and 3D imaging. The upcoming DH meeting (DH 2018) will be held 25-28 June 2018 in Orlando, Florida, USA, as part of the OSA Imaging and Applied Optics Congress. PMID- 29328116 TI - Hybrid sensing face detection and registration for low-light and unconstrained conditions. AB - The capability to track, detect, and identify human targets in highly cluttered scenes under extreme conditions, such as in complete darkness or on the battlefield, has been one of the primary tactical advantages in military operations. In this paper, we propose a new collaborative, multi-spectrum sensing method to achieve face detection and registration under low-light and unconstrained conditions. We design and prototype a novel type of hybrid sensor by combining a pair of near-infrared (NIR) cameras and a thermal camera (a long wave infrared camera). We strategically surround each NIR sensor with a ring of LED IR flashes to capture the "red-eye," or more precisely, the "bright-eye" effect of the target. The "bright-eyes" are used to localize the 3D position of eyes and face. The recovered 3D information is further used to warp the thermal face imagery to a frontal-parallel pose so that additional tasks, such as face recognition, can be reliably conducted, especially with the assistance of accurate eye locations. Experiments on real face images are provided to demonstrate the merit of our method. PMID- 29328117 TI - Rotating of low-refractive-index microparticles with a quasi-perfect optical vortex. AB - Low-refractive-index microparticles, such as hollow microspheres, have shown great significance in some applications, such as biomedical sensing and targeted drug delivery. However, optical trapping and manipulation of low-refractive-index microparticles are challenging, owing to the repelling force exerted by typical optical traps. In this paper, we demonstrated optical trapping and rotating of large-sized low-refractive-index microparticles by using quasi-perfect optical vortex (quasi-POV) beams, which were generated by Fourier transform of high-order quasi-Bessel beams. Numerical simulation was carried out to characterize the focusing property of the quasi-POV beams. The dynamics of low-refractive-index microparticles in the quasi-POV with various topological charges was investigated in detail. To improve the trapping and rotating performances of the vortex, a point trap was introduced at the center of the ring. Experimental results showed that the quasi-POV was preferable for manipulation of large-sized low-refractive index microparticles, with its control of the particles' rotating velocity dependent only on the topological charge due to the unchanged orbital radius. PMID- 29328118 TI - Evaluation of the key design parameters of liquid crystal tunable lenses for depth-from-focus algorithm. AB - Liquid crystal (LC) tunable lenses have been extensively studied and used in various applications, however, most of them have been evaluated regardless of their optical imaging quality, in particular, concerning their intrinsic diffuse scattering. In this paper, we investigate the impact of such impairments when LC lenses are used as tunable elements in a depth-from-focus algorithm (DfF). We attempt to analyze these effects in order to design LC lenses that mitigate their impact on the imaging quality. For this purpose, we designed various lenses to evaluate several parameters such as optical, electrical, manufacturing, etc., according to their implementations in a near-pixel DfF architecture. PMID- 29328119 TI - Standoff ultracompact micro-Raman sensor for planetary surface explorations. AB - We report the development of an innovative standoff ultracompact micro-Raman instrument that would solve some of the limitations of traditional micro-Raman systems to provide a superior instrument for future NASA missions. This active remote sensor system, based on a 532 nm laser and a miniature spectrometer, is capable of inspection and identification of minerals, organics, and biogenic materials within several centimeters (2-20 cm) at a high 10 MUm resolution. The sensor system is based on inelastic (Raman) light scattering and laser-induced fluorescence. We report on micro-Raman spectroscopy development and demonstration of the standoff Raman measurements by acquiring Raman spectra in daylight at a 10 cm target distance with a small line-shaped laser spot size of 17.3 MUm (width) by 5 mm (height). PMID- 29328120 TI - Broadband perfect infrared absorption by tuning epsilon-near-zero and epsilon near-pole resonances of multilayer ITO nanowires. AB - We numerically investigate the broadband perfect infrared absorption by tuning epsilon-near-zero (ENZ) and epsilon-near-pole (ENP) resonances of multilayer indium tin oxide nanowires (ITO NWs). The monolayer ITO NWs array shows intensive absorption at ENZ and ENP wavelengths for p polarization, while only at the ENP wavelength for s polarization. Moreover, the ENP resonances are almost omnidirectional and the ENZ resonances are angularly dependent. Therefore, the absorption bandwidth is broader for p polarization than that for s polarization when polarized waves are incident obliquely. The ENZ resonances can be tuned by altering the doping concentration and volume filling factor of ITO NWs. However, the ENP resonances only can be tuned by changing the doping concentration of ITO NWs, and volume filling factor impacts little on the ENP resonances. Based on the strong absorption properties of each layer at their own ENP and ENZ resonances, the tuned absorption of the bilayer ITO NWs with the different doping concentrations can be broader and stronger. Furthermore, multilayer ITO NWs can achieve broadband perfect absorption by controlling the doping concentration, volume filling factor, and length of the NWs in each layer. This study has the potential to apply to applications requiring efficient absorption and energy conversion. PMID- 29328121 TI - High-precision rotation angle measurement method based on a lensless digital holographic microscope. AB - To accurately measure ultrasmall rotation angles, a robust and effective method based on lensless digital holographic microscopy is proposed in this paper. The method combines holographic microscopy, solid geometry, and 3D measurement, including holographic measurement and angle measurement processes. We can calculate the 3D shape by the angular spectrum algorithm and the least-squares phase-unwrapping algorithm in the holographic process. According to the relationship between the surface shape and rotation angles, the real-time rotation angles can be calculated. To validate the feasibility and practicability of the proposed approach, numerical noise simulations and experiments were performed. The measurement precision of rotation angle can reach 0.5" in the range of 1000" in this paper's experiments. The holographic method has high measurement precision and good stability. In addition, the compact small volume has great potential in small-angle sensor applications. PMID- 29328122 TI - Model-assisted measuring method for periodical sub-wavelength nanostructures. AB - This paper describes a scatterometry approach designed by simulations for the in line characterization of sub-wavelength sinusoidal gratings, which are formed on a transparent foil in a roll-to-roll procedure. Currently used methods are based on series of in situ measurements of the specular optical response at different incident angles or wavelengths for acquiring dimensional information on the gratings. The capability of single measurements of the first diffraction maxima at a fixed incident angle and wavelength to accurately measure the height of the sub-wavelength sinusoidal gratings is investigated in this work. The relation between the scattered powers of the diffraction maxima and the grating height is extracted from light scattering simulations, i.e., the inverse problem is solved. Optimal setup parameters for the measurement of grating heights ranging from 100 nm to 300 nm are derived from simulations. Limits of measurability and the measurement uncertainty are evaluated for different instrumentation and simulation parameters. When using laser light in the visible wavelength range, the measurement uncertainty is physically limited by the photon shot noise to the picometer range, but the systematic contributions dominate the uncertainty. As a result, the measurement uncertainty for the grating height is estimated to <=12 nm, with a potential for <4 nm. Large-area scanning measurements performed offline and reference atomic force microscopy measurements verify the sensitivity of the presented measurement approach for identifying local variations of the spatial surface properties. Depending on the chosen detection system, sampling rates up to the MHz range are feasible, meeting the requirements of in-line process control of the roll-to-roll production process. PMID- 29328123 TI - On the fundamental comparison between unfocused and focused light field cameras. AB - Light field cameras have been extensively used in a variety of applications, thanks to their snapshot three-dimensional imaging capability. However, little is known regarding their pros and cons for a given application. Herein we report a fundamental comparison between two types of light field cameras-focused and unfocused. Our results indicate that the unfocused light field camera outperforms its focused counterpart in depth range and number of resolvable depth steps, while the focused light field camera has an edge in lateral resolution and reconstruction accuracy. PMID- 29328124 TI - Single-shot 3D topography of reflective samples with digital holographic microscopy. AB - In this work, an off-axis digital holographic microscope operating in reflection mode and a telecentric regimen to produce 3D topography of a microscopy sample is shown. The main characteristics of the proposed method, which make it different from the previous works in the field, are the possibility of producing the 3D topography by a single shot over the complete field of view with sensitivity of lambda/100, without phase perturbations introduced by the illuminating-imaging system, and with no further numerical processing beyond that required for recovering the phase map of the sample. A complete analysis of the illuminating imaging system of the digital holographic microscope is presented. The proposed digital holographic microscope is tested on imaging a USAF resolution test target and some micro-electromechanical systems (MEMs). PMID- 29328125 TI - Multispectral metasurface hologram at millimeter wavelengths. AB - We demonstrate a computer-generated metasurface hologram in which four distinct images are encoded at four different W-band (75-110 GHz) frequencies. The metasurface hologram consists of a planar array of resonant metamaterial elements excited by a collimated reference beam incident on the hologram at an oblique angle. Each of the images is encoded by a subset of metamaterial elements that are resonant at the specific excitation frequency and are spatially positioned to achieve a desired phase distribution in the plane in conjunction with the reference wave. The phase-only hologram is optimized using the Gerschberg-Saxton algorithm. The four well-defined images are produced at specific distances within the Fresnel zone of the aperture. PMID- 29328126 TI - Universal phase-depth mapping in a structured light field. AB - Technologies and devices for light field imaging have recently been developed for both industrial applications and scientific research to achieve excellent imaging properties. In our previous work, we combined light field imaging with structured illumination to propose a structured light field method in which multidirectional depth estimation can be performed for high-quality 3D imaging. However, the projection axis was implicitly assumed to be perpendicular to the reference plane, which is hard to meet in practice. In this paper, we derive a universal phase-depth mapping in a structured light field by relaxing this implicit condition. Both nonlinear and linear models were proposed based on this universal relationship. To test the model's practical performance, we simulated experiments by adding errors to the real measured values to evaluate the deviation in depth estimation. By comparing the root-mean-square distributions of the depth deviations with respect to the depth positions, we demonstrated that the nonlinear model was precise and consistent in a wide range of depth, and we employed this model to realize high-quality multidirectional scene reconstruction. PMID- 29328127 TI - Efficient method for fabricating a directional volumetric display using strings displaying multiple images. AB - In this study, we describe the fabrication of a high-resolution directional volumetric display that can display multiple images in different directions. The display designs can be used to show animations using strings; however, improving the resolution of such displays is difficult. Previously, the arrangement of strings has only been determined experimentally, making fabrication of volumetric displays a challenge. The goal of the present study is to improve resolution using simulations and to determine the arrangement of strings under three constraints. This simplified the fabrication of a directional volumetric display with 345 strings, which can display two different 20*20 pixel images in two different directions. A large high-resolution directional volumetric display can be fabricated using the proposed method. The string-type display has high artistic potential and is expected to find applications in the amusement and entertainment fields. PMID- 29328128 TI - Phase-locked optical metrology I: identification of intrinsic camera parameters from multiple grid views. AB - Camera-based optical metrology crucially relies on a proper identification of intrinsic (optical center position) and extrinsic (camera position) parameters of the used camera. A novel approach for processing phase data from multiple views of a target grid is presented, allowing these identifications within a pinhole camera model. First, the homography associated with the perspective distortion of each grid image is accurately identified using a phase-locking loop. Then, the affine transform for each view is determined, with the constraint of an identical set of intrinsic camera parameters. This requires slightly adjusting each homography. As there are highly redundant data, a criterion has to be chosen to optimize the result. The chosen criterion is the simultaneous minimization of the standard deviation between in-plane grid line displacements between the acquired grid images and the reconstructed ones. Experimental results demonstrate the efficiency of the method. PMID- 29328129 TI - Complex object wave extraction using time-multiplexing in off-axis digital holography. AB - In this paper, we present an algorithm for complex object wave extraction in off axis digital holography using a time-multiplexing and frequency spectrum-shifting technique. The proposed approach utilizes the digital time-multiplexing technique, in which two 90-deg-rotated off-axis holograms are recorded in sequence, and corresponding spectra are subtracted in the computed Fourier domain to eliminate the DC term. Then, the two subtracted holograms are digitally multiplexed into one complex hologram in the same plane, and by shifting the spatial frequency spectra of the subtracted hologram in the spatial frequency domain, one of the two cross-correlations can be obtained in the center. This technique simply extracts the spectrum of the real image in the frequency domain than the spatial filtering method. PMID- 29328130 TI - Quality of reconstruction of compressed off-axis digital holograms by frequency filtering and wavelets. AB - Compression of digital holograms can significantly help with the storage of objects and data in 2D and 3D form, its transmission, and its reconstruction. Compression of standard images by methods based on wavelets allows high compression ratios (up to 20-50 times) with minimum losses of quality. In the case of digital holograms, application of wavelets directly does not allow high values of compression to be obtained. However, additional preprocessing and postprocessing can afford significant compression of holograms and the acceptable quality of reconstructed images. In this paper application of wavelet transforms for compression of off-axis digital holograms are considered. The combined technique based on zero- and twin-order elimination, wavelet compression of the amplitude and phase components of the obtained Fourier spectrum, and further additional compression of wavelet coefficients by thresholding and quantization is considered. Numerical experiments on reconstruction of images from the compressed holograms are performed. The comparative analysis of applicability of various wavelets and methods of additional compression of wavelet coefficients is performed. Optimum parameters of compression of holograms by the methods can be estimated. Sizes of holographic information were decreased up to 190 times. PMID- 29328131 TI - Low-cost three-dimensional millimeter-wave holographic imaging system based on a frequency-scanning antenna. AB - In this paper, a closed-form two-dimensional reconstruction technique for hybrid frequency and mechanical scanning millimeter-wave (MMW) imaging systems is proposed. Although being commercially implemented in many imaging systems as a low-cost real-time solution, the results of frequency scanning systems have been reconstructed numerically or have been reported as the captured raw data with no clear details. Furthermore, this paper proposes a new framework to utilize the captured data of different frequencies for three-dimensional (3D) reconstruction based on novel proposed closed-form relations. The hybrid frequency and mechanical scanning structure, together with the proposed reconstruction method, yields a low-cost MMW imaging system with a satisfying performance. The extracted reconstruction formulations are validated through numerical simulations, which show comparable image quality with conventional MMW imaging systems, i.e., switched-array (SA) and phased-array (PA) structures. Extensive simulations are also performed in the presence of additive noise, demonstrating the acceptable robustness of the system against system noise compared to SA and comparable performance with PA. Finally, 3D reconstruction of the simulated data shows a depth resolution of better than 10 cm with minimum degradation of lateral resolution in the 10 GHz frequency bandwidth. PMID- 29328132 TI - Digital hologram transformations for RGB color holographic display with independent image magnification and translation in 3D. AB - A new framework for in-plane transformations of digital holograms (DHs) is proposed, which provides improved control over basic geometrical features of holographic images reconstructed optically in full color. The method is based on a Fourier hologram equivalent of the adaptive affine transformation technique [Opt. Express18, 8806 (2010)OPEXFF1094-408710.1364/OE.18.008806]. The solution includes four elementary geometrical transformations that can be performed independently on a full-color 3D image reconstructed from an RGB hologram: (i) transverse magnification; (ii) axial translation with minimized distortion; (iii) transverse translation; and (iv) viewing angle rotation. The independent character of transformations (i) and (ii) constitutes the main result of the work and plays a double role: (1) it simplifies synchronization of color components of the RGB image in the presence of mismatch between capture and display parameters; (2) provides improved control over position and size of the projected image, particularly the axial position, which opens new possibilities for efficient animation of holographic content. The approximate character of the operations (i) and (ii) is examined both analytically and experimentally using an RGB circular holographic display system. Additionally, a complex animation built from a single wide-aperture RGB Fourier hologram is presented to demonstrate full capabilities of the developed toolset. PMID- 29328133 TI - Computer-generated hologram generation method to increase the field of view of the reconstructed image. AB - In this paper, a computer-generated hologram (CGH) generation method is proposed to increase the field of view (FOV) in the holographic display. The CGH is generated through accumulating interference patterns of all object points. The size of each interference pattern is equal to the sum of the size of the recorded object and the spatial light modulator (SLM), so the size of the interference pattern is increased. The position of the interference pattern is related to that of the corresponding recorded object point. In the reconstruction process, three SLMs in a planar configuration are used to load the CGH. The seams between the SLMs are eliminated by beam splitters. Meanwhile, the boundaries of the diffraction light of all interference patterns are parallel with each other. Compared with the holographic display method using one SLM, the experiments demonstrate that the proposed method can reduce the demand for viewing distance and expand the FOV obviously in the horizontal direction, especially for the large-sized recorded object. PMID- 29328134 TI - 360-degree color hologram generation for real 3D objects. AB - Recently, holographic display and computer-generated holograms calculated from real existing objects have been more actively investigated to support holographic video applications. In this paper, we proposed a method of generating 360-degree color holograms of real 3D objects in an efficient manner. 360-degree 3D images are generated using the actual 3D image acquisition system consisting of a depth camera and a turntable and intermediate view generation. Then, 360-degree color holograms are calculated using a viewing-window-based computer-generated hologram. We confirmed that floating 3D objects are faithfully reconstructed around a 360-degree direction using our 360-degree tabletop color holographic display. PMID- 29328135 TI - Autostereoscopic 3D display system with dynamic fusion of the viewing zone under eye tracking: principles, setup, and evaluation [Invited]. AB - We study optical technologies for viewer-tracked autostereoscopic 3D display (VTA3D), which provides improved 3D image quality and extended viewing range. In particular, we utilize a technique-the so-called dynamic fusion of viewing zone (DFVZ)-for each 3D optical line to realize image quality equivalent to that achievable at optimal viewing distance, even when a viewer is moving in a depth direction. In addition, we examine quantitative properties of viewing zones provided by the VTA3D system that adopted DFVZ, revealing that the optimal viewing zone can be formed at viewer position. Last, we show that the comfort zone is extended due to DFVZ. This is demonstrated by a viewer's subjective evaluation of the 3D display system that employs both multiview autostereoscopic 3D display and DFVZ. PMID- 29328136 TI - Beam shaping diffractive wave plates [Invited]. AB - We present and discuss opportunities opened up by a new generation of beam shaping optical elements that combine capabilities of digital spatial light polarization converters and diffractive properties of thin liquid crystalline films with patterned orientation of anisotropy axis (diffractive wave plates). Several functions of the new generation beam shapers are demonstrated, among them converting a laser beam of a Gaussian profile into a ring profile in the far field, a flattop profile, and into complex images. We also describe electrically controlled beam shaping optical elements which can be turned off and on within milliseconds by applying a low external voltage. Optical, morphological, and electro-optical properties of the components are characterized. PMID- 29328137 TI - Hardware and software improvements to a low-cost horizontal parallax holographic video monitor. AB - Displays capable of true holographic video have been prohibitively expensive and difficult to build. With this paper, we present a suite of modularized hardware components and software tools needed to build a HoloMonitor with basic "hacker space" equipment, highlighting improvements that have enabled the total materials cost to fall to $820, well below that of other holographic displays. It is our hope that the current level of simplicity, development, design flexibility, and documentation will enable the lay engineer, programmer, and scientist to relatively easily replicate, modify, and build upon our designs, bringing true holographic video to the masses. PMID- 29328138 TI - Optical convolution for quantitative phase retrieval using the transport of intensity equation. AB - Propagation-based phase imaging using the transport of intensity equation (TIE) allows rapid, deterministic phase retrieval from defocused images. However, computational solutions to the TIE suffer from significant low-frequency noise artifacts and are unique up to the application of boundary conditions on the phase. We demonstrate that quantitative phase can be imaged directly at the detector for a class of pure-phase samples by appropriately patterning the illumination to solve the TIE through an optical convolution with the source. This can reduce noise artifacts, obviates the need for user-supplied boundary conditions and is demonstrated via simulation and experiment. PMID- 29328139 TI - Holographic display methods for volume data: polygon-based and MIP-based methods. AB - Volume data are widely used in many areas, especially in biomedical science and geology. However, current visualization technologies of volume data cannot satisfy the visual requirements of humans. In this study, we propose two holographic display methods for volume data. The first method is polygon-based, and the other is maximum intensity projection (MIP)-based. Both methods are able to generate computer generated holograms of volume data. The polygon-based method can obtain various and colorful holograms, while the MIP-based method can be quickly calculated. Both methods can generate holographic animations, which were displayed on an electro-holography device. PMID- 29328140 TI - Full-color digitized holography for large-scale holographic 3D imaging of physical and nonphysical objects. AB - Digitized holography techniques are used to reconstruct three-dimensional (3D) images of physical objects using large-scale computer-generated holograms (CGHs). The object field is captured at three wavelengths over a wide area at high densities. Synthetic aperture techniques using single sensors are used for image capture in phase-shifting digital holography. The captured object field is incorporated into a virtual 3D scene that includes nonphysical objects, e.g., polygon-meshed CG models. The synthetic object field is optically reconstructed as a large-scale full-color CGH using red-green-blue color filters. The CGH has a wide full-parallax viewing zone and reconstructs a deep 3D scene with natural motion parallax. PMID- 29328141 TI - Improved particle position accuracy from off-axis holograms using a Chebyshev model. AB - Side scattered light from micrometer-sized particles is recorded using an off axis digital holographic setup. From holograms, a volume is reconstructed with information about both intensity and phase. Finding particle positions is non trivial, since poor axial resolution elongates particles in the reconstruction. To overcome this problem, the reconstructed wavefront around a particle is used to find the axial position. The method is based on the change in the sign of the curvature around the true particle position plane. The wavefront curvature is directly linked to the phase response in the reconstruction. In this paper we propose a new method of estimating the curvature based on a parametric model. The model is based on Chebyshev polynomials and is fit to the phase anomaly and compared to a plane wave in the reconstructed volume. From the model coefficients, it is possible to find particle locations. Simulated results show increased performance in the presence of noise, compared to the use of finite difference methods. The standard deviation is decreased from 3-39 MUm to 6-10 MUm for varying noise levels. Experimental results show a corresponding improvement where the standard deviation is decreased from 18 MUm to 13 MUm. PMID- 29328142 TI - Full field-of-view digital lens-free holography for weak-scattering objects based on grating modulation. AB - Grating-based single-shot digital lens-free holography with spatial spectral multiplexing is proposed to realize full field-of-view (FOV) imaging for weak scattering objects. Multiple object waves are generated by a one-dimensional grating that is placed in near contact with the object to avoid the cross talk among different diffraction orders during reconstruction. A multiplexed off-axis hologram is created by interference between the object waves and reference wave and captured by an image sensor in one shot. Multiple imaging areas corresponding to the captured object waves can be simultaneously retrieved during reconstruction. A formula which guarantees full FOV imaging without cross talk or information loss is presented. The imaging experiments of a USAF resolution target are presented to demonstrate the feasibility of this method. PMID- 29328143 TI - Resolution optimization of an off-axis lensless digital holographic microscope. AB - Microscopes aimed at detecting cellular life in extreme environments such as ocean-bearing solar system moons must provide high resolution in a compact, robust instrument. Here, we consider the resolution optimization of a compact off axis lensless digital holographic microscope (DHM) that consists of a sample placed between an input point-source pair and a detector array. Two optimal high resolution regimes are identified at opposite extremes-a low-magnification regime with the sample located near a small-pixel detector array, and a high magnification regime with the sample near the input plane. In the former, resolution improves with smaller pixels, while in the latter, the effect of the finite pixel size is obviated, and the spatial resolution improves with detector array size. Using an off-axis lensless DHM with a 2 k*2 k array of 5.5 MUm-pixels in the high-magnification regime, and standard aberration correction software, a resolution of ~0.95 MUm has been demonstrated, a factor of 5.8 smaller than the pixel size. Our analysis further suggests that with yet larger detector arrays, a lensless DHM should be capable of near wavelength-scale resolution. PMID- 29328144 TI - Error of image saturation in the structured-light method. AB - In the phase-measuring structured-light method, image saturation will induce large phase errors. Usually, by selecting proper system parameters (such as the phase-shift number, exposure time, projection intensity, etc.), the phase error can be reduced. However, due to lack of a complete theory of phase error, there is no rational principle or basis for the selection of the optimal system parameters. For this reason, the phase error due to image saturation is analyzed completely, and the effects of the two main factors, including the phase-shift number and saturation degree, on the phase error are studied in depth. In addition, the selection of optimal system parameters is discussed, including the proper range and the selection principle of the system parameters. The error analysis and the conclusion are verified by simulation and experiment results, and the conclusion can be used for optimal parameter selection in practice. PMID- 29328145 TI - Iterative pixelwise approach applied to computer-generated holograms and diffractive optical elements. AB - This paper presents a novel approach to optimizing the design of phase-only computer-generated holograms (CGH) for the creation of binary images in an optical Fourier transform system. Optimization begins by selecting an image pixel with a temporal change in amplitude. The modulated image function undergoes an inverse Fourier transform followed by the imposition of a CGH constraint and the Fourier transform to yield an image function associated with the change in amplitude of the selected pixel. In iterations where the quality of the image is improved, that image function is adopted as the input for the next iteration. In cases where the image quality is not improved, the image function before the pixel changed is used as the input. Thus, the proposed approach is referred to as the pixelwise hybrid input-output (PHIO) algorithm. The PHIO algorithm was shown to achieve image quality far exceeding that of the Gerchberg-Saxton (GS) algorithm. The benefits were particularly evident when the PHIO algorithm was equipped with a dynamic range of image intensities equivalent to the amplitude freedom of the image signal. The signal variation of images reconstructed from the GS algorithm was 1.0223, but only 0.2537 when using PHIO, i.e., a 75% improvement. Nonetheless, the proposed scheme resulted in a 10% degradation in diffraction efficiency and signal-to-noise ratio. PMID- 29328146 TI - Accurate shape measurement of focusing microstructures in Fourier digital holographic microscopy. AB - This paper proposes a measurement method of focusing objects with a high gradient shape of a small and large radius of curvature. The measurements are carried out on a Fourier digital holographic microscope with optimized illumination conditions maximizing the usage of the system's numerical aperture. The obtained fringe patterns are the result of interference of deformed spherical object and spherical reference waves. The key elements of the method are the aberration compensation and calibration procedures. They provide accurate reconstruction of the object wave and determination of the focus position of the sample. The shape is calculated in two steps. First, the object wave is reconstructed at the plane of the object focus using single or multiframe phase extraction algorithm and the specialized propagation method. The step includes compensation for spherical aberration. In the second step, the sample shape is computed with the local ray approximation approach. The proposed method is experimentally validated with measurements of challenging, high gradient shapes (convex, concave) of different radiuses of curvature. PMID- 29328147 TI - Optical diffraction tomography with fully and partially coherent illumination in high numerical aperture label-free microscopy [Invited]. AB - Quantitative label-free imaging is an important tool for the study of living microorganisms that, during the last decade, has attracted wide attention from the optical community. Optical diffraction tomography (ODT) is probably the most relevant technique for quantitative label-free 3D imaging applied in wide-field microscopy in the visible range. The ODT is usually performed using spatially coherent light illumination and specially designed holographic microscopes. Nevertheless, the ODT is also compatible with partially coherent illumination and can be realized in conventional wide-field microscopes by applying refocusing techniques, as it has been recently demonstrated. Here, we compare these two ODT modalities, underlining their pros and cons and discussing the optical setups for their implementation. In particular, we pay special attention to a system that is compatible with a conventional wide-field microscope that can be used for both ODT modalities. It consists of two easily attachable modules: the first for sample illumination engineering based on digital light processing technology; the other for focus scanning by using an electrically driven tunable lens. This hardware allows for a programmable selection of the wavelength and the illumination design, and provides fast data acquisition as well. Its performance is experimentally demonstrated in the case of ODT with partially coherent illumination providing speckle-free 3D quantitative imaging. PMID- 29328148 TI - Fast occlusion processing for a polygon-based computer-generated hologram using the slice-by-slice silhouette method. AB - In a polygon-based computer-generated hologram (CGH), the three-dimensional (3D) model is represented as a polygon, which consists of numerous small facets. Lighting effect, material texture, and surface property can be included in the polygonal model, which enables polygon-based CGH to realize high-fidelity 3D display. On the other hand, the occlusion effect is an important depth cue for 3D display. In polygon-based CGH, however, occlusion processing is difficult and time-consuming work. In this paper, we proposed a simple and fast occlusion processing method, the slice-by-slice silhouette (S3) method, for generating the occlusion effect in polygon-based CGH. In the S3 method, the polygonal model is sliced into multiple thin segments. For each segment, a silhouette mask is generated and located at the backside of the segment. The incident light is first shaded by the mask and superimposes on the light emitted from the facets of the evaluated segment. In this way, every segment can be processed sequentially to get the resulting object light. Our experimental result demonstrates that the S3 method can generate a high-definition hologram with qualified occlusion effect. The computing complexity of the S3 method is lower than that of previous methods. In addition, the S3 method can be parallelized easily, and thus can be further speeded up by applying a parallel computing framework, such as multi-core CPU or GPU. PMID- 29328149 TI - Evaluation of finite difference and FFT-based solutions of the transport of intensity equation. AB - A finite difference method is proposed for solving the transport of intensity equation. Simulation results show that although slower than fast Fourier transform (FFT)-based methods, finite difference methods are able to reconstruct the phase with better accuracy due to relaxed assumptions for solving the transport of intensity equation relative to FFT methods. Finite difference methods are also more flexible than FFT methods in dealing with different boundary conditions. PMID- 29328150 TI - Phase retrieval based on transport of intensity and digital holography. AB - We propose a technique in which intensity images are reconstructed from a digital hologram to provide inputs for the transport-of-intensity equation for unwrapped phase recovery. By doing this, we avoid shifting of the sample or the camera in the experiment, a method commonly employed while using the method of transport-of intensity equation for phase retrieval. Computer simulations as well as experimental results have been demonstrated to verify the effectiveness of the proposed idea. The underlying numerical technique can also be viewed as an alternative to existing phase-unwrapping algorithms. PMID- 29328151 TI - Characterization of the reference wave in a compact digital holographic camera. AB - A hologram is a recording of the interference between an unknown object wave and a coherent reference wave. Providing the object and reference waves are sufficiently separated in some region of space and the reference beam is known, a high-fidelity reconstruction of the object wave is possible. In traditional optical holography, high-quality reconstruction is achieved by careful reillumination of the holographic plate with the exact same reference wave that was used at the recording stage. To reconstruct high-quality digital holograms the exact parameters of the reference wave must be known mathematically. This paper discusses a technique that obtains the mathematical parameters that characterize a strongly divergent reference wave that originates from a fiber source in a new compact digital holographic camera. This is a lensless design that is similar in principle to a Fourier hologram, but because of the large numerical aperture, the usual paraxial approximations cannot be applied and the Fourier relationship is inexact. To characterize the reference wave, recordings of quasi-planar object waves are made at various angles of incidence using a Dammann grating. An optimization process is then used to find the reference wave that reconstructs a stigmatic image of the object wave regardless of the angle of incidence. PMID- 29328153 TI - Fast and high-resolution light field acquisition using defocus modulation. AB - In the conventional microlens-array-based light field imaging system, there is a trade-off between the angular and spatial resolutions. Light field reconstruction from images captured by focal plane sweeping, such as light field moment imaging (LFMI) and light field reconstruction with back projection (LFBP), can achieve high transverse resolution comparable to the modern camera sensor. However, the acquisition of a series of focal plane sweeping images along the optical axis is time consuming and requires fine alignment. Furthermore, different focal-plane based light field reconstruction techniques require images with different characteristics. To solve these problems, we present an efficient approach for fast light field acquisition with precise focal plane sweeping capture by defocus modulation, rather than mechanical movement. Also, we verify the validity and the improvement of our system. With the controllable point spread function, we can capture images for light field reconstruction with both LFMI and LFBP. Otherwise, we quantitatively compare the two methods using images captured with the proposed systems. PMID- 29328152 TI - Single-shot, dual-mode, water-immersion microscopy platform for biological applications. AB - A single-shot water-immersion digital holographic microscope combined with broadband (white light) illumination mode is presented. This double imaging platform allows conventional incoherent visualization with phase holographic imaging of inspected samples. The holographic architecture is implemented at the image space (that is, after passing the microscope lens), thus reducing the sensitivity of the system to vibrations and/or thermal changes in comparison to regular interferometers. Because of the off-axis holographic recording principle, quantitative phase images of live biosamples can be recorded in a single camera snapshot at full-field geometry without any moving parts. And, the use of water immersion imaging lenses maximizes the achievable resolution limit. This dual mode microscope platform is first calibrated using microbeads, then applied to the characterization of fixed cells (neuroblastoma, breast cancer, and hippocampal neuronal cells) and, finally, validated for visualization of dynamic living cells (hippocampal neurons). PMID- 29328154 TI - Effect of optical pumping on the dielectric properties of 0.6CaTiO3-0.4NdAlO3 ceramics in the terahertz range. AB - The dielectric properties of 0.6CaTiO3-0.4NdAlO3 ceramics under external optical fields were investigated by terahertz time-domain spectroscopy in a frequency range of 0.2 THz to 1 THz at room temperature. It could be found that the variation of the real part of complex permittivity is approximately 0.31 in the frequency range of 0.2 THz to 1 THz. However the imaginary part of the dielectric constant does not change appreciably with the external optical field. The micromechanism of these results was attributed to the built-in electric field caused by the excited free carriers in the ceramics. PMID- 29328155 TI - Fast-switching optically isotropic liquid crystal nano-droplets with improved depolarization and Kerr effect by doping high k nanoparticles. AB - We proposed and analyzed an optically isotropic nano-droplet liquid crystal (LC) doped with high k nanoparticles (NPs), exhibiting enhanced Kerr effects, which could be operated with reduced driving voltages. For enhancing the contrast ratio together with the light efficiencies, the LC droplet sizes were adjusted to be shorter than the wavelength of visible light to reduce depolarization effects by optical scattering of the LC droplets. Based on the optical analysis of the depolarization effects, the influence of the relationship between the LC droplet size and the NP doping ratio on the Kerr effect change was investigated. PMID- 29328156 TI - Suppressing the influence of charge-coupled device vertical blooming on the measurement of laser beam quality factor (M2) of a near-infrared laser. AB - In this paper, a new method, which is based on reconstructing the original intensity distribution of a laser with images captured by a charge-coupled device (CCD) in two orthogonal directions, is proposed for suppressing the influence of CCD vertical blooming on the measurement of the laser beam quality factor (M2). A simplified theoretical model for the distribution of CCD blooming is also proposed. With the proposed method and model, the influence of CCD vertical blooming on the measurement of M2 is simulated. The experimental results demonstrate that the new method can be an effective means to measure the M2 of a near-infrared laser with a silicon CCD camera. The proposed method can be applied to a beam quality analyzer in order to suppress the influence of blooming on the measurement of M2. PMID- 29328157 TI - Talbot-Lau x-ray deflectometry phase-retrieval methods for electron density diagnostics in high-energy density experiments. AB - Talbot-Lau x-ray interferometry uses incoherent x-ray sources to measure refraction index changes in matter. These measurements can provide accurate electron density mapping through phase retrieval. An adaptation of the interferometer has been developed in order to meet the specific requirements of high-energy density experiments. This adaptation is known as a moire deflectometer, which allows for single-shot capabilities in the form of interferometric fringe patterns. The moire x-ray deflectometry technique requires a set of object and reference images in order to provide electron density maps, which can be costly in the high-energy density environment. In particular, synthetic reference phase images obtained ex situ through a phase-scan procedure, can provide a feasible solution. To test this procedure, an object phase map was retrieved from a single-shot moire image obtained from a plasma-produced x-ray source. A reference phase map was then obtained from phase-stepping measurements using a continuous x-ray tube source in a small laboratory setting. The two phase maps were used to retrieve an electron density map. A comparison of the moire and phase-stepping phase-retrieval methods was performed to evaluate single-exposure plasma electron density mapping for high-energy density and other transient plasma experiments. It was found that a combination of phase-retrieval methods can deliver accurate refraction angle mapping. Once x-ray backlighter quality is optimized, the ex situ method is expected to deliver electron density mapping with improved resolution. The steps necessary for improved diagnostic performance are discussed. PMID- 29328158 TI - Volume holographic spatial mode demultiplexer with a dual-wavelength method. AB - Volume holographic demultiplexers (VHDMs) provide spatial mode demultiplexing using simple optical systems. However, applying VHDM to practical optical communication systems is difficult, as typical holographic media have no sensitivity in the infrared region, which includes optical transmission bands. In this paper, we propose a VHDM scheme combined with a dual-wavelength method (DWM). Using the DWM, VHDMs are able to perform mode demultiplexing in the optical transmission bands. We experimentally demonstrated the basic operation of our proposal using experiments performed at an 850-nm wavelength. In addition, we performed numerical simulations to investigate the application of VHDM to the C band. PMID- 29328159 TI - Adaptive compensation of intracavity tilts during lasing through detecting the direction of output beams. AB - We present adaptive compensation of intracavity tilts based on detecting the direction of the output beams. We use the initial direction of the output beam when the laser cavity is well collimated for reference. Then the difference between the actual direction of the output beam and the reference is used as feedback to control the intracavity tip/tilt mirror. The relation between the direction of the output beam and the intracavity tilt is investigated with both the Fox-Li method and measurements. A series of experiments demonstrate that intracavity tilts can be well compensated by the proposed method. We have also proved that it is possible to substitute the proposed method for conventional extracavity beam stabilization. PMID- 29328160 TI - Frequency downconversion with independent multichannel phase shifting and zero intermediate-frequency receiving based on optical frequency shift and polarization multiplexing. AB - Photonic microwave frequency downconversion with independent multichannel phase shifting and zero-intermediate-frequency (IF) receiving via an integrated polarization multiplexing dual-parallel Mach-Zehnder modulator (MZM) is proposed. Based on the ideas of optical frequency shift and polarization multiplexing, the radio frequency (RF) signal is frequency downconverted to multichannel IF signals with the phases independently and arbitrarily tuned by adjusting the polarization controllers or even frequency downconverted to baseband directly by choosing two quadrature channels. In the simulation, the gain of our proposed frequency downconversion system is higher than that of the conventional two cascaded MZMs' system, and the phase shift with the range of 360 degrees can be obtained concurrently. Furthermore, 2.5 Gbit/s RF vector signals centered at 10 GHz with different modulation formats are successfully demodulated. PMID- 29328161 TI - Ultrafast and low-power crystallization in Ge1Sb2Te4 and Ge1Sb4Te7 thin films using femtosecond laser pulses. AB - Rapid and reversible switching between amorphous and crystalline phases of phase change material promises to revolutionize the field of information processing with a wide range of applications including electronic, optoelectronics, and photonic memory devices. However, achieving faster crystallization is a key challenge. Here, we demonstrate femtosecond-driven transient inspection of ultrafast crystallization of as-deposited amorphous Ge1Sb2Te4 and Ge1Sb4Te7 thin films induced by a series of 120 fs laser pulses. The snapshots of phase transitions are correlated with the time-resolved measurements of change in the absorption of the samples. The crystallization is attributed to the reiterative excitation of an intermediate state with subcritical nuclei at a strikingly low fluence of 3.19 mJ/cm2 for Ge1Sb2Te4 and 1.59 mJ/cm2 for Ge1Sb4Te7. Furthermore, 100% volumetric crystallization of Ge1Sb4Te7 was achieved with the fluence of 4.78 mJ/cm2, and also reamorphization is seen for a continuous stimulation at the same repetition rate and fluence. A systematic confirmation of structural transformations of all samples is validated by Raman spectroscopic measurements on the spots produced by the various excitation fluences. PMID- 29328162 TI - Optical device terahertz integration in a two-dimensional-three-dimensional heterostructure. AB - The transmission properties of an off-planar integrated circuit including two wavelength division demultiplexers are designed, simulated, and analyzed in detail by the finite-difference time-domain method. The results show that the wavelength selection for different ports (0.404[c/a] at B2 port, 0.389[c/a] at B3 port, and 0.394[c/a] at B4 port) can be realized by adjusting the parameters. It is especially important that the off-planar integration between two complex devices is also realized. These simulated results give valuable promotions in the all-optical integrated circuit, especially in compact integration. PMID- 29328163 TI - Bicontrollable terahertz metasurface with subwavelength scattering elements of two different materials. AB - Transmission of a normally incident plane wave through a metasurface with bicontrollable subwavelength scattering elements was simulated using a commercial software. Some pixels composing the H-shaped scattering elements were made of a magnetostatically controllable material whereas the remaining pixels were made of a thermally controllable material, the metasurface designed to operate in the terahertz spectral regime. The copolarized transmission coefficients were found to exhibit stopbands that shift when either a magnetostatic field is applied or the temperature is increased or both. Depending on spectral location of the stopband, either the magnetostatic field gives coarse control and temperature gives fine control or vice versa. The level of magnetostatic control depends on the magnetostatic-field configuration. PMID- 29328164 TI - Impact of input field characteristics on vibrational femtosecond coherent anti Stokes Raman scattering thermometry. AB - In this paper, three ultrashort-pulse coherent anti-Stokes Raman scattering (CARS) thermometry approaches are summarized with a theoretical time-domain model. The difference between the approaches can be attributed to variations in the input field characteristics of the time-domain model. That is, all three approaches of ultrashort-pulse (CARS) thermometry can be simulated with the unified model by only changing the input fields features. As a specific example, the hybrid femtosecond/picosecond CARS is assessed for its use in combustion flow diagnostics; thus, the examination of the input field has an impact on thermometry focuses on vibrational hybrid femtosecond/picosecond CARS. Beginning with the general model of ultrashort-pulse CARS, the spectra with different input field parameters are simulated. To analyze the temperature measurement error brought by the input field impacts, the spectra are fitted and compared to fits, with the model neglecting the influence introduced by the input fields. The results demonstrate that, however the input pulses are depicted, temperature errors still would be introduced during an experiment. With proper field characterization, however, the significance of the error can be reduced. PMID- 29328165 TI - Time-resolved study of optical properties and microscopic dynamics during the drying of TiO2 films by spectral diffusing wave spectroscopy. AB - We present a combined experimental, theoretical, and numerical study of photon transport and microscopic dynamics in rigid and drying turbid thin films. Our setup is based in multispeckle diffusing wave spectroscopy and is adapted for frequency sweep of the illuminating source. We apply our approach to simultaneously monitor the changes in optical properties and microscopic dynamics of turbid thin films of rutile TiO2 powder dispersed in ethanol during the full drying process. Accordingly, we introduce an extension of the photon diffusion model for spectral speckle intensity correlations to account for system microscopic dynamics. We find that our results are well described by the model, where parameters required as the time-dependent sample thickness and transport mean free path are obtained from experiments. Furthermore, our findings are validated by numerical simulations of speckle dynamics based on the copula scheme. We consider that our scheme could be useful in time-resolved physical characterization of time-evolving turbid thin systems. PMID- 29328166 TI - Comprehensive three-dimensional ray tracing model for three-mirror cavity enhanced spectroscopy. AB - A 3D ray tracing model is used to simulate optical reinjection in a nonresonant optical cavity, for off-axis integrated cavity output spectroscopy. The optical cavities are optimized for maximum intensity enhancement factors via a grid search and a genetic algorithm. Intensity enhancement factors up to 1400 are found for short cavities (3 cm) and up to 101 for long cavities (50 cm). The model predicts that short absorption cells can be used, having a long effective path length and a high throughput power. This opens new opportunities in the field of ultrasensitive absorption spectroscopy and allows the design of compact optical gas sensors. PMID- 29328167 TI - High-speed real-time heterodyne interferometry using software-defined radio. AB - This paper describes the design and performance of a phase demodulation scheme based on software-defined radio (SDR), applied in heterodyne interferometry. The phase retrieval is performed in real time by means of a low-cost SDR with a wideband optoelectronic front-end. Compared to other demodulation schemes, the system is quite simpler, versatile, and of lower cost. The performance of the demodulator is demonstrated by measuring the displacement per volt of a thin-film polymeric piezoelectric transducer based on polyvinylidene fluoride for ultrasonic applications. We measured displacements between 3.5 pm and 122 pm with 7% relative uncertainty, in the frequency range from 20 kHz to 1 MHz. PMID- 29328168 TI - Simultaneous determination of the size and concentration of fine bubbles in water by laser-light scattering. AB - The preparation of nanoscale fine bubbles in water is an innovative technology, but no precise method for simultaneously measuring the size and concentration of such bubbles had previously been developed. We have developed a method for simultaneously determining the size and concentration of fine bubbles in water by a light-scattering technique. Dynamic light scattering gives the diffusion constant and particle size of fine bubbles, whereas static light scattering provides their concentration or molar mass. Static light scattering also provides the radius of gyration of the bubbles, thereby providing a means for validating measurements of the sizes of the fine bubbles. PMID- 29328169 TI - Inverse synthetic aperture LADAR demonstration: system structure, imaging processing, and experiment result. AB - A long-distance inverse synthetic aperture LADAR (ISAL) imaging experiment outdoors over 1 km for cooperative targets is demonstrated, which gets a two dimensional high-resolution image with resolution exceeding 2.5 cm. The system utilizes an electro-optic in-phase and quadrature modulator to output a linear frequency-modulated continuous waveform (LFMCW) with a bandwidth of 6 GHz and pulse repetition frequency (PRF) of 16.7 KHz. For the problem of the coherence of the laser, the effects of the coherent processing interval (CPI) and time delay of the local oscillator (LO) on the coherence are discussed. The fiber delay line is set and the CPI is reduced to lower the requirement of the frequency stability of the laser source. The images are formed by two-dimensional Fourier transform and joint time-frequency transform methods, respectively. In this paper, we present the system structure, imaging processing, and the experiment result in detail. The experiment result validates the performance of our system for ISAL imaging. PMID- 29328170 TI - Highly directive plasmonic structure with double resonance at excitation and emission for molecule-enhanced fluorescence. AB - An improved bull's eye nanostructure is proposed as a substrate for surface enhanced fluorescence. Optimized by finite-difference time-domain, annular corrugation on both upper and lower surfaces is placed around a nanobow tie in the middle. The whole structure is designed for the excitation and emission process of a certain fluorescence simultaneously, which can enhance the fluorescence intensity enormously (35 times for an excitation field and 120 times for radiation, independently). Meanwhile, it is able to confine the far-field emission energy within a divergence angle of +/-3.5 degrees . The dual-resonant enhancement and directivity of such a substrate allows higher sensitivity during fluorescence detection. Furthermore, the designed resonance and directional light control at emission may effectively reduce the required energy at excitation, which is ideal for those molecules with low laser damage threshold. PMID- 29328171 TI - Sequential fitting-and-separating reflectance components for analytical bidirectional reflectance distribution function estimation. AB - We present a sequential fitting-and-separating algorithm for surface reflectance components that separates individual dominant reflectance components and simultaneously estimates the corresponding bidirectional reflectance distribution function (BRDF) parameters from the separated reflectance values. We tackle the estimation of a Lafortune BRDF model, which combines a nonLambertian diffuse reflection and multiple specular reflectance components with a different specular lobe. Our proposed method infers the appropriate number of BRDF lobes and their parameters by separating and estimating each of the reflectance components using an interval analysis-based branch-and-bound method in conjunction with iterative K-ordered scale estimation. The focus of this paper is the estimation of the Lafortune BRDF model. Nevertheless, our proposed method can be applied to other analytical BRDF models such as the Cook-Torrance and Ward models. Experiments were carried out to validate the proposed method using isotropic materials from the Mitsubishi Electric Research Laboratories-Massachusetts Institute of Technology (MERL-MIT) BRDF database, and the results show that our method is superior to a conventional minimization algorithm. PMID- 29328172 TI - Simultaneous trilateral communication based on three mutually coupled chaotic semiconductor lasers with optical feedback. AB - In this paper, we propose a chaos-based scheme allowing for trilateral communication among three mutually coupled chaotic semiconductor lasers. The coupling through a partially transparent optical mirror between two lasers induces the chaotic dynamics. We numerically solve the delay rate equations of three lasers and demonstrate that the dynamics is completely synchronous. Herein, each laser is not only a transmitter but a receiver; three different messages are encoded by simultaneously modulating bias current of the three lasers. By monitoring the synchronization error between transmitter and receiver, and comparing the error with the message of the local laser, we can decipher the message of the sender. The investigation indicates that these messages introduced on the two ends of each link among three lasers can be simultaneously transmitted and restored, so the system can realize simultaneous trilateral communication. In this scheme, an eavesdropper can monitor the synchronization error, but one has no way to obtain the bits that are being sent, so the trilateral communication is secure. PMID- 29328173 TI - Random fiber laser based on artificially controlled backscattering fibers. AB - The random fiber laser (RFL), which is a milestone in laser physics and nonlinear optics, has attracted considerable attention recently. Most previously reported RFLs are based on distributed feedback of Rayleigh scattering amplified through the stimulated Raman-Brillouin scattering effect in single-mode fibers, which require long-distance (tens of kilometers) single-mode fibers and high threshold, up to watt level, due to the extremely small Rayleigh scattering coefficient of the fiber. We proposed and demonstrated a half-open-cavity RFL based on a segment of an artificially controlled backscattering single-mode fiber with a length of 210 m, 310 m, or 390 m. A fiber Bragg grating with a central wavelength of 1530 nm and a segment of artificially controlled backscattering single-mode fiber fabricated by using a femtosecond laser form the half-open cavity. The proposed RFL achieves thresholds of 25 mW, 30 mW, and 30 mW, respectively. Random lasing at a wavelength of 1530 nm and extinction ratio of 50 dB is achieved when a segment of 5 m erbium-doped fiber is pumped by a 980 nm laser diode in the RFL. A novel RFL with many short cavities has been achieved with low threshold. PMID- 29328174 TI - Mapping geometry in Fizeau transmission spheres with a small f-number. AB - The ideal mapping geometry in a Fizeau interferometer is to map equal height increments on a flat object and equal angle increments on a spherical surface to equal heights on the detector. So the initial intent of the optical design of Fizeau transmission spheres (TSs) is to provide R-theta mapping geometry for equal angle increments. The corresponding unequal heights mapping will introduce retrace error as coma when linear carrier fringes exist. On the contrary, equal heights mapping with R-sin theta mapping geometry will avoid linear carrier fringes induced coma error. These two different mapping geometries conflict especially for the TS with a small f-number. In this paper, we will first explore the design and the performance of the f/0.75 TS according to the two different mapping geometries, and then evaluate the mapping geometry for the commercial ZYGO f/0.75 TS, and give some engineering notes for the designers, the metrologists, and the fabricators in the optical laboratory. PMID- 29328175 TI - Dependence of the birefringence of polystyrene film on the stretching conditions. AB - We investigated the dependence of the birefringence of polystyrene (PS) film with a negative optical birefringence on the stretching conditions. We varied the stretching ratio (SR), stretching speed (SS), and stretching temperature (ST), and measured the inplane birefringence and the Nz coefficient of the PS film. The inplane birefringence was increased with greater SR and SS but decreased with greater ST. The Nz coefficient of the stretched PS film was around zero and showed similar dependence on the stretching conditions like inplane birefringence. PMID- 29328176 TI - Ultra-sensitive quasi-distributed temperature sensor based on an apodized fiber Bragg grating. AB - This work targets a remarkable quasi-distributed temperature sensor based on an apodized fiber Bragg grating. To achieve this, the mathematical formula for a proposed apodization function is carried out and tested. Then, an optimization parametric process required to achieve the remarkable accuracy that is based on coupled mode theory (CMT) is done. A detailed investigation for the side lobe analysis, which is a primary judgment factor, especially in quasi-distributed configuration, is investigated. A comparison between elite selection of apodization profiles (extracted from related literatures) and the proposed modified-Nuttal profile is carried out covering reflectivity peak, full width half maximum (FWHM), and side lobe analysis. The optimization process concludes that the proposed modified-Nuttal profile with a length (L) of 15 mm and refractive index modulation amplitude (Deltan) of 1.4*10-4 is the optimum choice for single-stage and quasi-distributed temperature sensor networks. At previous values, the proposed profile achieves an acceptable reflectivity peak of 10-0.426 dB, acceptable FWHM of 0.0808 nm, lowest side lobe maximum (SL max) of 7.037*10 12 dB, lowest side lobe average (SL avg) of 3.883*10-12 dB, and lowest side lobe suppression ratio (SLSR) of 1.875*10-11 dB. These optimized characteristics lead to an accurate single-stage sensor with a temperature sensitivity of 0.0136 nm/ degrees C. For the quasi-distributed scenario, a noteworthy total isolation of 91 dB is achieved without temperature, and an isolation of 4.83 dB is achieved while applying temperature of 110 degrees C for a five-stage temperature-sensing network. Further investigation is made proving that consistency in choosing the apodization profile in the quasi-distributed network is mandatory. If the consistency condition is violated, the proposed profile still survives with a casualty of side lobe level rise of -73.2070 dB when adding uniform apodization and -46.4823 dB when adding Gaussian apodization to the five-stage modified Nuttall temperature-sensing network. PMID- 29328177 TI - Projected image correction technology research on autonomous-perception anisotropic surfaces. AB - In this paper, a projection correction method is proposed for autonomous perception depth anisotropic surfaces, in order to improve the adaptive perceptual projection of the projection equipment under different circumstances. During the parameter calibration process of a projector-camera system with low recognition precision, as well as low noise resistance at angular points, an angular-point subpixel detection algorithm based on color information guidance was proposed to effectively improve the identification precision of the angular point detection. Meanwhile, the projection geometry correction algorithm was proposed, which was based on the topology analysis, in order to analyze the spatial topology distribution of the depth anisotropic surface and also to solve the homography matrix in the different regions of the anisotropic surface. Eventually, the homography matrix was used for the geometric distortion correction of the projection distortion image. The experimental analysis showed that the identification accuracy of the proposed method achieved 0.25 pixels, with simultaneous high planar parallelism and liner perpendicularity. Through utilizing the method proposed by us for the projection correction of the depth anisotropic surface, it was confirmed that the geometric distortion correction precision of the proposed method had reached the subpixel level, and the consistency level of the imaging picture was also confirmed. PMID- 29328178 TI - Determination of toxic and essential metals in rock and sea salts using pulsed nanosecond laser-induced breakdown spectroscopy. AB - A spectrometer based on pulsed nanosecond laser-induced breakdown spectroscopy (LIBS) was employed for the quantitative determination of heavy and essential metals in salts from various sources available in Pakistan. Six salt samples were collected from sea salt and rock salt. Toxic metals (Cu, Cd, and Ni) and other microessentials (Fe, Ca, Co, Mg, Mn, S, and Zn) were investigated from the recorded spectra. The detection system was calibrated using a parametric dependence study. The quantitative analyses were accomplished under the assumption of local thermodynamic equilibrium and optically thin plasma. The results by the LIBS technique were in agreement with the outcomes of the same samples studied using a more standard approach like inductively coupled plasma atomic emission spectroscopy (ICP-AES). When the concentrations of heavy and essential metals were calculated using a calibration-free LIBS method that does not need a standard salt specimen and dilution, both LIBS and ICP-AES were also in good agreement. The limit of detection of the experimental set up was determined for the observed heavy metals in the studied samples. PMID- 29328179 TI - Beam shape coefficient calculation for a Gaussian beam: localized approximation, quadrature and angular spectrum decomposition methods. AB - Three methods for calculating the beam shape coefficients (the quadrature, the angular spectrum decomposition (ASD), and the localized approximation methods) are studied. The normalized associated Legendre function is employed in the calculation so as to prevent overflow. The two-dimensional integrations in the quadrature and the ASD methods are developed to the one-dimensional integration to speed up the calculation. The Gaussian beams reconstructed with different methods are compared, showing the difference in the remodeling effects of these methods. The reason for the presence of pseudodistribution in the localized model is given. PMID- 29328180 TI - Modulation transfer function of a fish-eye lens based on the sixth-order wave aberration theory. AB - A calculation program of the modulation transfer function (MTF) of a fish-eye lens is developed with the autocorrelation method, in which the sixth-order wave aberration theory of ultra-wide-angle optical systems is used to simulate the wave aberration distribution at the exit pupil of the optical systems. The autocorrelation integral is processed with the Gauss-Legendre integral, and the magnification chromatic aberration is discussed to calculate polychromatic MTF. The MTF calculation results of a given example are then compared with those previously obtained based on the fourth-order wave aberration theory of plane symmetrical optical systems and with those from the Zemax program. The study shows that MTF based on the sixth-order wave aberration theory has satisfactory calculation accuracy even for a fish-eye lens with a large acceptance aperture. And the impacts of different types of aberrations on the MTF of a fish-eye lens are analyzed. Finally, we apply the self-adaptive and normalized real-coded genetic algorithm and the MTF developed in the paper to optimize the Nikon F/2.8 fish-eye lens; consequently, the optimized system shows better MTF performances than those of the original design. PMID- 29328181 TI - Super-resolution image de-fencing using a nonlocal nonconvex prior. AB - Today's smartphones/phablets/tablets are equipped with cameras that have enabled people to capture their favorite moments. However, images or videos taken at public places using inexpensive low-resolution cameras are often degraded by the presence of occlusions such as fences/barricades. In order to reconstruct a fence free high-resolution image, we use a video of a scene captured by panning a hand held camera and model the effects of various degradations. Initially, we obtain the spatial locations of fences by semantic segmentation and subsequently estimate the subpixel motion between the degraded low-resolution frames. The unknown high-resolution de-fenced image is modeled as a nonlocal discontinuity adaptive Markov random field (NL-DAMRF) and its maximum a posteriori estimate is obtained by minimizing an appropriate objective function. We propose a nonlocal extension of DAMRF prior to preserve high-frequency information in the reconstruction process. Specifically, we use the graduated nonconvexity algorithm to minimize the proposed nonconvex energy function. Experiments with both synthetic and real-world data demonstrate the efficacy of the proposed algorithm. PMID- 29328182 TI - Mechano-optical modulator based on a rotating optical flat applied to simultaneous holographic multiplexing of gratings. AB - Simultaneous holographic multiplexing methods are used to store multiple holograms concurrently into one holographic volume. Compared to serial exposure, one advantage is the higher processing speed. Additionally, for parallel exposure the different gratings develop in a linear relation to one another, although the developing process itself is nonlinear caused by the holographic photopolymer. A mechano-optical modulator using a rotating optical flat is introduced to enable economic single-shot exposure of centimeter to decimeter-sized holograms utilizing only one laser. The modulator specifically suppresses undesired interference, which occurs with this type of simultaneous exposure. A device concept of the modulator is presented. The application to simultaneous holographic multiplexing is theoretically discussed and experimentally demonstrated. The experimental results are compared to simulations and are evaluated. The functionality and practicability are proven, giving rise to a new design concept and a wider range of applications. PMID- 29328183 TI - Ultrafast multipulse damage threshold of femtosecond high reflectors. AB - Laser-induced damage threshold is a fundamental figure of merit of femtosecond optical components used in large-scale laser systems. We tested a series of ultrafast mirrors featuring high band-gap dielectric materials as well as improved design and coating techniques. In a broad range of the damage test pulse train involving between 10 and 100,000 pulses (40 fs, 800 nm), pure dielectric high reflectors exhibit around 1.5 J/cm2 and hybrid Ag-multilayer mirrors can exhibit well above 1.2 J/cm2 damage threshold. In addition, a reference antireflection coating exceeded 2 J/cm2. Damage threshold dependence on the number of pulses was similar for all optics involved. PMID- 29328184 TI - Extinction spectra of suspensions of microspheres: determination of the spectral refractive index and particle size distribution with nanometer accuracy. AB - A method is presented to infer simultaneously the wavelength-dependent real refractive index (RI) of the material of microspheres and their size distribution from extinction measurements of particle suspensions. To derive the averaged spectral optical extinction cross section of the microspheres from such ensemble measurements, we determined the particle concentration by flow cytometry to an accuracy of typically 2% and adjusted the particle concentration to ensure that perturbations due to multiple scattering are negligible. For analysis of the extinction spectra, we employ Mie theory, a series-expansion representation of the refractive index and nonlinear numerical optimization. In contrast to other approaches, our method offers the advantage to simultaneously determine size, size distribution, and spectral refractive index of ensembles of microparticles including uncertainty estimation. PMID- 29328185 TI - Optical fiber humidity sensor based on the direct response of the polyimide film. AB - An optical fiber humidity sensor based on an optical Fabry-Perot interferometer is proposed and experimentally demonstrated. The sensor is constructed by a short section of hollow-core fiber coated with a polyimide (PI) film. Taking advantage of the direct response of the PI film, a sensitivity of up to 1.309 nm/%RH can be achieved in the humidity change range from 40% RH to 80% RH. The temperature sensitivity is measured to be 43.57 pm/ degrees C when the temperature changes from 25 degrees C to 55 degrees C. Because of its simple structure, fast response time, convenient production, and good reproducibility, the proposed sensor will be competitive in the field of cultural relic humidity monitoring and pharmaceutical storage. PMID- 29328186 TI - Single crystal Er3+ : YAG fibers with tailored refractive index profiles. AB - Erbium-doped yttrium aluminum garnet (Er3+:YAG) rods were inserted inside undoped tubes and grown into single-crystal fibers of a diameter of 300 MUm using the laser-heated pedestal growth technique. Growth at various rates resulted in radially graded distributions of Er3+ dopant ions, as observed using laser induced fluorescence imaging. Profiles of the refractive index were measured using cross-sectional reflectometry in a microscope. Dopant distributions and the corresponding index profiles were compared with thermal diffusion theory to determine the inter-diffusion coefficient of Y3+ and Er3+ ions at 2000 degrees C, yielding an estimated value of D=(9.10+/-0.8)*10-11 m2/s. This work constitutes a step toward controlled growth of fibers with high thermal conductivities, low Brillouin gain, and waveguiding properties required for high-power optical amplifier and laser applications. PMID- 29328187 TI - Kilohertz binary phase modulator for pulsed laser sources using a digital micromirror device. AB - The controlled modulation of an optical wavefront is required for aberration correction, digital phase conjugation, or patterned photostimulation. For most of these applications, it is desirable to control the wavefront modulation at the highest rates possible. The digital micromirror device (DMD) presents a cost effective solution to achieve high-speed modulation and often exceeds the speed of the more conventional liquid crystal spatial light modulator but is inherently an amplitude modulator. Furthermore, spatial dispersion caused by DMD diffraction complicates its use with pulsed laser sources, such as those used in nonlinear microscopy. Here we introduce a DMD-based optical design that overcomes these limitations and achieves dispersion-free high-speed binary phase modulation. We show that this phase modulation can be used to switch through binary phase patterns at the rate of 20 kHz in two-photon excitation fluorescence applications. PMID- 29328188 TI - Plasmon mediated inverse Faraday effect in a graphene-dielectric-metal structure. AB - This Letter shows the features of inverse Faraday effect (IFE) in a graphene dielectric-metal (GDM) structure. The constants of propagation and attenuation of the surface plasmon-polariton modes are calculated. The effective magnetic field induced by surface plasmon modes in the dielectric due to the IFE is estimated to reach above 1 tesla. The possibility to control the distribution of the magnetic field by chemical potential of graphene is shown. The concept of strain-driven control of the IFE in the structure has been proposed and investigated. PMID- 29328189 TI - Massive ordering and alignment of cylindrical micro-objects by photovoltaic optoelectronic tweezers. AB - Optical tools for manipulation and trapping of micro- and nano-objects are a fundamental issue for many applications in nano- and biotechnology. This work reports on the use of one such method, known as photovoltaic optoelectronics tweezers, to orientate and organize cylindrical microcrystals, specifically elongated zeolite L, on the surface of Fe-doped LiNbO3 crystal plates. Patterns of aligned zeolites have been achieved through the forces and torques generated by the bulk photovoltaic effect. The alignment patterns with zeolites parallel or perpendicular to the substrate surface are highly dependent on the features of light distribution and crystal configuration. Moreover, dielectrophoretic chains of zeolites with lengths up to 100 MUm have often been observed. The experimental results of zeolite trapping and alignment have been discussed and compared together with theoretical simulations of the evanescent photovoltaic electric field and the dielectrophoretic potential. They demonstrate the remarkable capabilities of the optoelectronic photovoltaic method to orientate and pattern anisotropic microcrystals. The combined action of patterning and alignment offers a unique tool to prepare functional nanostructures with potential applications in a variety of fields such as nonlinear optics or plasmonics. PMID- 29328190 TI - Orbital angular momentum generation via a spiral phase microsphere. AB - Vortex beam carrying orbital angular momentum (OAM) attracts much attention in many research fields for its special phase and intensity distributions. In this Letter, a novel design called the spiral phase microsphere (SPMS) is proposed for the first time, to the best of our knowledge, which can convert incident plane wave light into the focused vortex beam that carries OAM with different topological charges l=+/-1 and +/-2. The vortex beam generation is verified by a self-interfered modification of the SPMS. The generation of the vortex beams by the SPMS irradiated by a single-wavelength incident light is studied using the CST MICROWAVE STUDIO simulation. The SPMS provides a new approach to achieve high efficiency and high-integrated photonic applications related with OAM. PMID- 29328191 TI - Dispersion-managed Ho-doped fiber laser mode-locked with a graphene saturable absorber. AB - In this Letter, we demonstrate an all-fiber holmium-doped laser operating in the stretched-pulse regime. As a result of dispersion management, the laser is capable of generating 190 fs pulses with a bandwidth of 53.6 nm. The pulses centered at 2060 nm reach 2.55 nJ of energy. Mode-locking is achieved with a multilayer graphene saturable absorber (SA). The Letter also presents the measurement of group velocity dispersion of active (Nufern SM-HDF-10/130), passive (SMF28), and dispersion-compensating (Nufern UHNA4) fibers in a 1.8-2.1 MUm range. To the best of our knowledge, this is the first report on an all fiber, stretched-pulse laser operating beyond 2 MUm with nanomaterial-based SA. PMID- 29328192 TI - Near quantum-noise limited and absolute frequency stabilized 1083 nm single frequency fiber laser. AB - The Earth's magnetic field has significant effects that protect us from cosmic radiation and provide navigation for biological migration. However, slow temporal variations originating in the liquid outer core invariably exist. To understand the working mechanism of the geomagnetic field and improve accuracy of navigation systems, a high-precision magnetometer is essential to measure the absolute magnetic field. A helium optically pumping magnetometer is an advanced approach, but its sensitivity and accuracy are directly limited by the low-frequency relative intensity noise and frequency stability characteristics of a light source. Here, we demonstrate a near quantum-noise limited and absolute frequency stabilized 1083 nm single-frequency fiber laser. The relative intensity noise is only 5 dB higher than the quantum-noise limit, and the root mean square of frequency fluctuation is ~17 kHz after locked. This fiber laser could suppress the fluctuation of magnetic resonant frequency and improve the signal-to-noise ratio of the magnetic resonance signal detection. PMID- 29328193 TI - Polarization-insensitive and wide-incident-angle optical absorber with periodically patterned graphene-dielectric arrays. AB - A polarization-insensitive and angle-independent graphene absorber (GA) with periodically patterned grating is demonstrated. A periodic nanocavity composed of multilayer subwavelength grating and metal substrate supports a strongly localized mode inside the cavity, where the mode helps to absorb more electromagnetic waves. The proposed GA exhibits polarization-insensitive behavior and maintains the high absorption above 90% within a wide range of incident angle (more than 80 degrees ). We attribute the high absorption to the excitation of the cavity mode resonance and magnetic resonance for the transverse electric and transverse magnetic polarizations, respectively. The proposed GA has potential applications in the design of various devices, such as optical modulators or tunable absorption filters because of its remarkable angle-insensitive absorption performance. PMID- 29328194 TI - Subwavelength wave manipulation in a thin surface-wave bandgap crystal. AB - It has been recently reported that the unit cell of wire media metamaterials can be tailored locally to shape the flow of electromagnetic waves at deep subwavelength scales [Nat. Phys.9, 55 (2013)NPAHAX1745-247310.1038/nphys2480]. However, such bulk structures have a thickness of at least the order of wavelength, thus hindering their applications in the on-chip compact plasmonic integrated circuits. Here, based upon a Sievenpiper "mushroom" array [IEEE Trans. Microwave Theory Tech.47, 2059 (1999)IETMAB0018-948010.1109/22.798001], which is compatible with standard printed circuit board technology, we propose and experimentally demonstrate the subwavelength manipulation of surface waves on a thin surface-wave bandgap crystal with a thickness much smaller than the wavelength (1/30th of the operating wavelength). Functional devices including a T shaped splitter and sharp bend are constructed with good performance. PMID- 29328195 TI - Geometrical optimization of nanostrips for surface plasmon excitation: an analytical approach. AB - We give a simple tool for the optimization of the dimensions of a metallic nanostrip illuminated at a given wavelength under normal incidence, to get a maximum of the electromagnetic field amplitude in the nanostrip. We propose an analytical formula that gives the widths and heights of the series of nanostrips that produce field enhancement. The validity of the analytical formula is checked by using the finite element method. This design of a nanostrip could be useful for sensors and thermally active components. PMID- 29328196 TI - Anisotropy of nonlinear optical absorption of LBO crystals at 355 nm. AB - The dependence of the nonlinear optical absorption coefficients on the intensity and polarization of pulsed laser radiation at 355 nm was investigated for lithium triborate (LBO) crystals using the piezoelectric resonance laser calorimetry. PMID- 29328197 TI - Fiber Bragg grating fabricated in micro-single-crystal sapphire fiber. AB - This Letter introduces a fiber Bragg grating (FBG) in a micro-single-crystal sapphire fiber (micro-SFBG) for sensing applications in high-temperature and harsh environments. The FBG was fabricated by a point-by-point method via an IR femtosecond laser in a large-diameter sapphire fiber that was then wet-hot acid etched to achieve microfiber size, which culminated in fabricating and characterizing a 9.6 MUm diameter micro-SFBG. The refractive index measurement ranging from 1 to 1.75 and temperature measurement from room temperature to 1400 degrees C are also reported. PMID- 29328198 TI - Stable vortex soliton in nonlocal media with orientational nonlinearity. AB - We report on the first experimental observation of stable vortex solitons in nematic liquid crystals with nonlocal nonlinear reorientational response. We show how these nonlinear vortex beams can be formed and confined in extraordinary optical waves by employing the cell with no lateral boundary conditions and the application of an external magnetic field that effectively controls the molecular direction and propagation of the self-trapped beams. We also find that these vortex solitons can be generated in certain ranges of the input beam power. PMID- 29328199 TI - Silicon-on-insulator microring resonator sensor based on an amplitude comparison sensing function. AB - A novel, highly sensitive integrated sensor based on a silicon-on-insulator microring resonator is proposed and experimentally demonstrated. To achieve a fast-response and cost-effective sensing system, the new structure establishes a linear amplitude comparison sensing function (ACSF) by monitoring the optical powers from both the through port and drop port of an add-drop microring resonator simultaneously, where the contrast of the two ports eliminates the effect of unexpected power fluctuation of the input laser on sensor performance. A highly enhanced linear relationship between the resonant wavelength shift and the ACSF value is achieved with an R-squared value over 0.99. A proof-of-concept experiment for temperature sensing demonstrates an almost constant ACSF with only +/-0.9% discrepancy, while the laser power is varied between 0 dBm and -7 dBm. PMID- 29328200 TI - Super pulses of orbital angular momentum in fractional-order spiroid vortex beams. AB - We consider optical properties of hypergeometric-Gaussian beam compositions with spiral-like intensity and phase distributions called spiroid beams. Their orbital angular momentum as a function of a fractional-order topological charge has a chain of super-pulses (bursts and dips). The form of the super-pulses can be controlled by the spiral parameters. Such a phenomenon can be used in optical switches and triggers for optical devices and communication systems. PMID- 29328201 TI - Selective generation of Lamb modes by a moving continuous-wave laser. AB - This Letter focuses on the selectively non-contact generation of Lamb wave modes in plates by using a continuous-wave (CW) laser moving along sample surface. Compared with the generated Lamb waves with broadband, multiple modes (the existence of at least two modes at any given frequency) excited by a pulsed laser, the desired single narrowband mode of the Lamb wave can be generated by a moving CW laser, as long as the scanning speed matches the phase velocity of the mode. Moreover, the dispersion curves of the Lamb wave can be obtained directly from the power spectrum of the time-domain signal recorded at each laser's moving speed. Single A0 mode excitation, coupled resonance phenomenon of A0 mode and S0 mode, single S0 mode excitation, and high-order modes appeared successively as scanning speed increased. Especially, the excitation of the pure single S0 mode can be realized, which is suitable for propagation in the case of liquid loading. It is proposed, for the first time to the best of our knowledge, to realize the selection of a single Lamb wave mode by using the CW laser scanning method, which provides a brand-new way for laser ultrasonic excitation. PMID- 29328202 TI - Inclined emitting slotted single-mode laser with 1.7 degrees vertical divergence angle for PIC applications. AB - In this Letter, a new type of single-mode slotted laser used for an on-chip light source in photonic integrated circuits is proposed. An inclined light beam with a low vertical divergence angle can be directly coupled into the surface grating of the silicon to form an integrated light source. Experimentally, a III-V laser with a 54.6 degrees inclined angle and a vertical divergence angle of 1.7 degrees is achieved by introducing a kind of specially distributed microstructure. The side mode suppression ratio is better than 45 dB, and the continuous wave output power reaches 6.5 mW at room temperature. We report the inclined emitting microstructured single-mode laser with a low divergence angle for the first time, to the best of our knowledge. PMID- 29328203 TI - Polarization control of terahertz radiation from two-color femtosecond gas breakdown plasma. AB - We individually control polarizations of 800 and 400 nm beams, which form a two color femtosecond plasma filament in air irradiating a linear-to-elliptical THz signal. We detected a threshold-like appearance of THz ellipticity at the angle of ~85 degrees between the fundamental and second-harmonic field polarization directions. The simulations confirm the abrupt change of THz polarization and reveal that the weak ellipticity of the second harmonic is sufficient to generate essentially elliptical THz radiation. PMID- 29328204 TI - Broadband nonvolatile photonic switching based on optical phase change materials: beyond the classical figure-of-merit. AB - In this Letter, we propose a broadband, nonvolatile on-chip switch design in the telecommunication C-band with record low loss and crosstalk. The unprecedented device performance builds on: 1) a new optical phase change material (O-PCM) Ge2Sb2Se4Te1 (GSST), which exhibits significantly reduced optical attenuation compared to traditional O-PCMs, and 2) a nonperturbative design that enables low loss device operation beyond the classical figure-of-merit (FOM) limit. We further demonstrate that the 1-by-2 and 2-by-2 switches can serve as basic building blocks to construct nonblocking and nonvolatile on-chip switching fabric supporting arbitrary numbers of input and output ports. PMID- 29328205 TI - Flexible pulse-stretching for a swept source at 2.0 MUm using free-space angular chirp-enhanced delay. AB - Dispersive pulse-stretching at 2.0 MUm has long been hindered by the high intrinsic optical loss from conventional dispersive media. Here a flexible pulse stretching technique at 2.0 MUm is demonstrated over a broad bandwidth with large scale dispersion and low intrinsic optical loss. The technique employs the newly proposed pulse-stretching scheme, namely, free-space angular-chirp-enhanced delay. Both normal and anomalous temporal dispersion (up to +/-500 ps/nm) with low intrinsic loss (<6 dB) over a spectral bandwidth of ~84 nm at 2.0 MUm is obtained with low nonlinear effects. Based on this method, an optical wavelength swept source at 2.0 MUm is realized and applied to spectrally encoded imaging at a line scan rate of ~19 MHz, proving the potential of this pulse-stretching technique for continuous single-shot measurements at the 2.0 MUm wavelength regime, particularly for optical microscopy and spectroscopy. PMID- 29328206 TI - Fabrication of helical photonic structures with submicrometer axial and spatial periodicities following "inverted umbrella" geometry through phase-controlled interference lithography. AB - In this Letter we report for the first time, to the best of our knowledge, a phase spatial light modulator (SLM)-based interference lithography (IL) approach for the realization of hexagonally packed helical photonic structures with a submicrometer scale spatial, as well as axial, periodicity over a large area. A phase-only SLM is used to electronically generate six phase-controlled plane beams. These six beams from the front side and a direct central backside beam are used together in an "inverted umbrella" geometry setup to realize the desired submicrometer axial periodic chiral photonic structures through IL. The realized structures with 650 nm spatial and 353 nm axial periodicities on negative photoresist can be used as an optical filter and refractive index sensor, as evidenced from the FDTD-based simulation study on its optical properties. Further, the fabricated templates can be transferred to metals such as silver or aluminum for the realization of a metamaterial-based broadband circular polarizer ranging from 1 to 3.5 MUm of near-infrared spectra. PMID- 29328207 TI - 13 dB squeezed vacuum states at 1550 nm from 12 mW external pump power at 775 nm. AB - Strongly squeezed light at telecommunication wavelengths is a necessary resource for one-sided device-independent quantum key distribution via fiber networks. Reducing the optical pump power that is required for its generation will advance this quantum technology towards efficient out-of-laboratory operation. Here, we investigate the second-harmonic pump power requirement for parametric generation of continuous-wave squeezed vacuum states at 1550 nm in a state-of-the-art doubly resonant standing-wave periodically poled potassium titanyl phosphate cavity setup. We use coarse adjustment of the Gouy phase via the cavity length, together with temperature fine-tuning, for simultaneously achieving double resonance and (quasi) phase matching, and observe a squeeze factor of 13 dB at 1550 nm from just 12 mW of external pump power at 775 nm. We anticipate that optimizing the cavity coupler reflectivity will reduce the external pump power to 3 mW, without reducing the squeeze factor. PMID- 29328208 TI - Absorption of laser plasma in competition with oscillation currents for a terahertz spectrum. AB - We generate terahertz radiation in a supersonic jet of nitrogen molecules pumped by intense two-color laser pulses. The tuning of terahertz spectra from blue shift to red shift is observed by increasing laser power and stagnation pressure, and the red shift range is enlarged with the increased stagnation pressure. Our simulation reveals that the plasma absorption of the oscillation currents and expanded plasma column owing to increased laser intensity and gas number density are crucial factors in the recurrence of the red shift of terahertz spectra. The findings disclose the microscopic mechanism of terahertz radiation and present a controlling knob for the manipulation of a broadband terahertz spectrum from laser plasma. PMID- 29328209 TI - Observation of spatial optical diametric drive acceleration in photonic lattices. AB - We experimentally and theoretically demonstrate a spatial diametric drive acceleration of two mutually incoherent optical beams in 1D optical lattices under a self-defocusing nonlinearity. The two beams, exciting the modes at the top/bottom edges of the first Bloch band and hence experiencing normal/anomalous diffraction, can bind together and bend in the same direction during nonlinear propagation, analogous to the interplay between two objects with opposite signs of mass that breaks Newton's third law. Their spatial spectrum changes associated with the acceleration are analyzed for different lattice modulations. We find that the acceleration limit is determined by the beam exciting the top band edge that reaches a saturated momentum change prior to the other pairing beam. PMID- 29328210 TI - Nonlinear absorption and temperature-dependent fluorescence of perovskite FAPbBr3 nanocrystal. AB - Recent progress in solar cell and light-emitting devices makes halide perovskite a research hot spot in optics. In this Letter, the nonlinear absorption and fluorescence properties of FAPbBr3 nanocrystal, one typical organometallic halide perovskite, have been investigated via Z-scan measurements and a density dependent photoluminescence (PL) spectrum. The FAPbBr3 nanocrystal exhibits nonlinear absorption under the excitation of 800 nm, whose photon energy is below the bandgap of FAPbBr3. The significant absorption is experimentally confirmed to be induced by two-photon absorption (TPA), and the TPA coefficient is measured to be ~0.0042 cm/GW. Moreover, the PL induced by TPA in FAPbBr3 nanocrystal shows different temperature-dependent behaviors in the range of 90 to 350 K. The peaks of the PL spectrum remain nearly constant at 100-160 K, with a very shallow trough at around 150 K, while a linear blue shift (0.496 meV/K) of the spectrum is observed when temperature is above 160 K. These temperature-dependent fluorescence behaviors can be ascribed to the structural phase transition at about 150 K and the contribution of thermal expansion. Moreover, the exciton binding energy around 160 meV and the optical phonon energy of 15.3 meV are also extracted from the temperature-dependent PL data. PMID- 29328211 TI - Effects of defocus on the transfer function of coherence scanning interferometry. AB - Coherence scanning interferometry (CSI) offers three-dimensional (3D) measurement of surface topography with high precision and accuracy. Defocus within the interferometric objective lens, however, is commonly present in CSI measurements and reduces both the resolving power of the imaging system and the ability to measure tilted surfaces. This Letter extends the linear theory of CSI to consider the effects of defocus on the 3D transfer function and the point spread function in an otherwise ideal CSI instrument. The results are compared with measurements of these functions in a real instrument. This work provides further evidence for the validity of the linear systems theory of CSI. PMID- 29328212 TI - High-throughput microchannel fabrication in fused silica by temporally shaped femtosecond laser Bessel-beam-assisted chemical etching. AB - We proposed combining temporally shaped (double-pulse train) laser pulses with spatially shaped (Bessel beam) laser pulses. By using a temporally shaped femtosecond laser Bessel-beam-assisted chemical etching method, the energy deposition efficiency was improved by adjusting the pulse delay to yield a stronger material modification and, thus, a higher etching depth. The etching depth was enhanced by a factor of 13 using the temporally shaped Bessel beam. The mechanism of etching depth enhancement was elucidated by localized transient-free electrons dynamics-induced structural and morphological changes. Micro-Raman spectroscopy was conducted to verify the structural changes inside the material. This method enables high-throughput, high-aspect-ratio microchannel fabrication in fused silica for potential applications in microfluidics. PMID- 29328213 TI - Iodine-stabilized single-frequency green InGaN diode laser. AB - A 520-nm InGaN diode laser can emit a milliwatt-level, single-frequency laser beam when the applied current slightly exceeds the lasing threshold. The laser frequency was less sensitive to diode temperature and could be finely tuned by adjusting the applied current. Laser frequency was stabilized onto a hyperfine component in an iodine transition through the saturated absorption spectroscopy. The uncertainty of frequency stabilization was approximately 8*10-9 at a 10-s integration time. This compact laser system can replace the conventional green diode-pumped solid-state laser and applied as a frequency reference. A single longitudinal mode operational region with diode temperature, current, and output power was investigated. PMID- 29328214 TI - Efficient, 2-5 MUm tunable CdSiP2 optical parametric oscillator pumped by a laser source at 1.57 MUm. AB - We report on first demonstrations of CdSiP2-based optical parametric oscillators that are pumped by eye-safe Q-switched nanosecond laser sources operating at 1.57 MUm. One device reached 40% optical conversion efficiency generating 10 mJ of energy near degeneracy in the 3 MUm region. Angle tuning of a similar device through the middle infrared was demonstrated with the signal and idler waves being tuned from 2.28 MUm to 5.05 MUm. PMID- 29328215 TI - Cascaded four-wave mixing in the XUV region. AB - We present a detailed study of the wave-mixing process in the extreme ultraviolet (XUV) region (around 30 nm) by using two collinear multiple-cycle laser pulses with incommensurate frequencies (wavelengths 1400 and 800 nm). The experimental data provide evidence for the coherent accumulation of wave-mixing fields and a high third-order response of the medium in this spectral range. We show that the time evolution of the mixing fields can be used to study the coherence dynamics of the free-electron wave packet with a lifetime of 200-750 fs. PMID- 29328216 TI - Photoacoustic and hyperspectral dual-modality endoscope. AB - We have developed a dual-modality endoscope composed of photoacoustic (PA) and hyperspectral imaging, capable of visualizing both structural and functional properties of bio-tissue. The endoscope's composition and scanning mechanism was described, and the feasibility of the dual-modality endoscope was verified by mimic phantom experiments. Lately, we demonstrated its endoscopic workability through in vivo experiments. The experimental results showed that the proposed herein hybrid endoscope can provide optical imaging of the surface and tomography imaging for the deeper features, and a functional oxygen saturation rate map of the same imaging area. We demonstrated optical-resolution PA imaging of vascular structures and an oxygen saturation rate map in a rabbit's rectum. It confirmed that this dual-modality endoscope can play an important role in comprehensive clinical applications. PMID- 29328217 TI - Differential loss magnetic field sensor using a ferrofluid encapsulated D-shaped optical fiber. AB - A ferrofluid immersed, D-shape optical fiber exhibits differential loss up to 12 dB with respect to an azimuthally rotating magnetic field placed around its longitudinal axis, manifested in its measured transmission power. Investigating the magneto induced refractive index and loss changes by using ferrofluid overlaid diffractive elements a differential loss mechanism is revealed, associated with the relative light polarization direction and the magnetic field application direction. The results were used for performing modal profile simulations of ferrofluid immersed D-shape optical fiber. It is demonstrated that such an optical system can act as a magnetic field sensor with field angle and intensity sensing capabilities. PMID- 29328218 TI - Scattering cross-sectional modulation in photoacoustic remote sensing microscopy. AB - Modeling and observations of large scattering cross-sectional modulations in absorbing optical scatterers due to a pulsed laser excitation are reported. Rapid laser-induced thermo-elastic expansion produces nontrivial perturbations to the local refractive indices. This mechanism forms the basis of a recent non-contact photoacoustic technique known as photoacoustic remote sensing microscopy. A time evolution model is constructed and discussed, comparing it with existing planar models, time-independent models, and experiments. Fractional scattering cross sectional modulations greater than 20 times that of the unperturbed particles are predicted and observed for the first time, to the best of our knowledge. A nonlinear acoustic enlargement effect is likewise predicted and observed. Implications of system and material properties are explored. PMID- 29328219 TI - Quantum limits on the time-bandwidth product of an optical resonator. AB - A thought-provoking proposal by Tsakmakidis et al. [Science356, 1260 (2017)SCIEAS0036-807510.1126/science.aam6662] suggests that nonreciprocal optics can break a time-bandwidth limit to passive resonators. Here I quantize their resonator model and show that quantum mechanics does impose a limit, or requires extra noise to be added in the same fashion as amplified spontaneous emission in an active resonator. I also use thermodynamics to argue that extra dissipation or noise must be present in their proposed device. PMID- 29328220 TI - Fabrication of optical vortex lattices based on holographic polymer-dispersed liquid crystal films. AB - This Letter demonstrates optical vortex lattices based on holographic polymer dispersed liquid crystal (HPDLC) films. The fabrication method uses a phase-only reflective spatial light modulator with numerically calculated phase profiles loaded on it to simplify multi-helical-wave interference. The beam profiles of the diffraction beams are simulated using the Fourier transform and compared with experimental results. The topological charges of the 1st-order diffraction beams reconstructed from the HPDLC films are examined using a Michelson interferometer. PMID- 29328221 TI - Localized excitation of polarized light emission by cathodoluminescence spectroscopy. AB - Surface plasmons (SPs), the resonance of free electrons on the metal-air interface, may strongly interact with light and generate some extraordinary optical effects. Instead of using conventional planar light excitation, here we excite SPs with a focused electron beam on metallic nanostructures with different geometrical symmetries. With the help of a polarizer and filter in the detection system, we obtain cathodoluminescence (CL) images with different polarizations at certain wavelengths. The maxima in the CL images show that the focused electron beam may efficiently excite luminescence with different polarizations at different spots. Comparing the data collected on the structures with specific geometrical symmetry, we demonstrate that the polarization of the emitted light depends on both the structural symmetry and the excitation location. We suggest that this Letter is enlightening to understand the relationship between the SP resonance on the structure and the emission of CL with different polarizations. PMID- 29328222 TI - Doppler-free Fourier transform spectroscopy. AB - Sub-Doppler broadband multi-heterodyne spectroscopy is proposed and experimentally demonstrated. Using two laser frequency combs of slightly different repetition frequencies, we have recorded Doppler-free two-photon dual comb spectra of atomic rubidium resonances of a width of 6 MHz, while simultaneously interrogating a spectral span of 10 THz. The atomic transitions are uniquely identified via the intensity modulation of the observed fluorescence radiation. To the best of our knowledge, these results represent the first demonstration of Doppler-free Fourier transform spectroscopy and extend the range of applications of broadband spectroscopy towards precision nonlinear spectroscopy. PMID- 29328223 TI - Self-referenced octave-wide subharmonic GaP optical parametric oscillator centered at 3 MUm and pumped by an Er-fiber laser: erratum. AB - This erratum reports a correction to the labeling of Figs. 2(b) and 3(b) in the original manuscript, Opt. Lett.42, 4756 (2017)OPLEDP0146 959210.1364/OL.42.004756. PMID- 29328224 TI - Magnetometry using fluorescence of sodium vapor. AB - Magnetic resonance of sodium fluorescence is studied with varying laser intensity, duty cycle, and field strength. A magnetometer based on a sodium vapor cell filled with He buffer gas is demonstrated, using a single amplitude modulated laser beam. With a 589 nm laser tuned at the D1 or D2 line, the magnetic field is inferred from the variation of fluorescence. A magnetic field sensitivity of 150 pT/Hz is achieved at the D1 line. The work is an important step toward sensitive remote magnetometry with mesospheric sodium. PMID- 29328225 TI - Transversely coupled Fabry-Perot resonators with Bragg grating reflectors. AB - We design and demonstrate Fabry-Perot resonators with transverse coupling using Bragg gratings as reflectors on the silicon-on-insulator (SOI) platform. The effects of tailoring the cavity length and the coupling coefficient of the directional coupler on the spectral characteristics of the device are studied. The fabricated resonators achieved an extinction ratio (ER) of 37.28 dB and a Q factor of 3356 with an effective cavity length of 110 MUm, and an ER of 8.69 dB and a Q-factor of 23642 with a 943 MUm effective cavity length. The resonator structure presented here has the highest reported ER on SOI and provides additional degrees of freedom compared to an all-pass ring resonator to tune the spectral characteristics. PMID- 29328226 TI - Intensity modulation of a terahertz bandpass filter: utilizing image currents induced on MEMS reconfigurable metamaterials. AB - We experimentally demonstrated a tunable terahertz bandpass filter based on microelectromechanical systems (MEMS) reconfigurable metamaterials. The unit cell of the filter consists of two split-ring resonators (SRRs) and a movable bar. Initially, the movable bar situates at the center of the unit cell, and the filter has two passbands whose central frequencies locate at 0.65 and 0.96 THz. The intensity of the two passbands can be actively modulated by the movable bar, and a maximum modulation depth of 96% is achieved at 0.96 THz. The mechanism of tunability is investigated using the finite-integration time-domain method. The result shows that the image currents induced on the movable bar are opposite the resonance currents induced on the SRRs and, thus, weaken the oscillating intensity of the resonance currents. This scheme paves the way to dynamically control and switch the terahertz wave at some constant frequencies utilizing induced image currents. PMID- 29328227 TI - Wide-angle transmissions of electromagnetic fields through the sandwiched transparent epsilon-near-zero metamaterial screen. AB - We propose a sandwiched transparent epsilon-near-zero (ENZ) metamaterial screen to release the obliquely incident electromagnetic fields. More specifically, the transmission properties through ENZ metamaterials are investigated when incorporated with an interlayer of a meta-surface having periodic complementary spiral-resonator-matrixes. We show that both TE- and TM-polarized electromagnetic waves are capable of penetrating the ENZ metamaterials under a wide-angle range of illuminations, and the greatly enhanced transmissions are turning out to be frequency dispersionless for different polarized electromagnetic fields with different incident angles. Our design, breaking the notion of the angular filter of ENZ metamaterials, should readily be applied to other extreme-parameter materials and pave the way to explore more unexpected transmission properties of these metamaterials. PMID- 29328228 TI - Quadrature squeezing of a higher-order sideband spectrum in cavity optomechanics. AB - We propose an efficient scheme to generate quadrature squeezing of a higher-order sideband spectrum in an optomechanical system. This is achieved by exploiting a well-established optomechanical circumstance, where a second-order nonlinearity is embedded into the optomechanical cavity driven by a strong control field and a weak probe pulse. Using experimentally achievable parameters, we demonstrate that the second-order nonlinearity intensity and the frequency detuning of a control field allow us to modify the amplitude of higher-order sidebands and improve the amount of squeezing of a higher-order sideband spectrum. Furthermore, in the presence of a strong second-order nonlinearity, an optimizing quadrature squeezing of a higher-order sideband spectrum can be achieved, which provides a practical opportunity to design the squeezed frequency combs and other precision measurements. PMID- 29328229 TI - Two-mode surface plasmon lasing in hexagonal arrays. AB - We demonstrate surface-plasmon lasing in hexagonal metal hole arrays with a semiconductor gain medium. The device can be tuned between two laser modes, with distinct wavelengths, spatial distributions, and polarization patterns, by changing the size of the optically pumped area. One of the modes exhibits a six fold polarization pattern, while the mode observed for larger pump spots has a rotationally symmetric polarization pattern. We explain the mode tuning by the differences of in-plane and radiative out-of-plane losses of the modes. The spatial and polarization properties of the modes are conveniently described by a sum of vectorial orbital angular momentum beams with orbital, spin, and total angular momentum j=l+s. PMID- 29328230 TI - High-efficiency 2 MUm Tm:YAP laser with a compact mechanical Q-switch. AB - We describe a compact, highly efficient, diode-pumped, mechanically Q-switched Tm:YAP laser operating near 2 MUm. The Q-switch, based on a torsion spring resonant mirror scanner, had negligible optical loss and required very low electrical drive power. At a 10 kHz pulse repetition frequency, the laser generated an average output power of 10.5 W at 1.94 MUm, Q-switched pulse energy of 1.05 mJ, a pulse length of 31 ns, and a peak power of 34 kW. The Q-switched laser exhibited maximum optical and electrical efficiencies of 51% and 26%, respectively. PMID- 29328231 TI - Aberration-accounting calibration for 3D single-molecule localization microscopy. AB - We propose a straightforward sample-based technique to calibrate the axial detection in 3D single-molecule localization microscopy. Using microspheres coated with fluorescent molecules, the calibration curves of point spread function-shaping or intensity-based measurements can be obtained over the imaging depth range. This experimental method takes into account the effect of the spherical aberration without requiring computational correction. We demonstrate its efficiency for astigmatic imaging in a 1.2 MUm range above the coverslip. PMID- 29328232 TI - CEP dependence of signal and idler upon pump-seed synchronization in optical parametric amplifiers. AB - We study the effect of pump-seed timing fluctuations on the carrier-envelope phase (CEP) of signal and idler pulses emerging from an OP(CP)A. A simple analytical model is derived in order to provide an intuitive explanation of the origin of CEP fluctuations, while split-step simulations are performed to cover a broad range of different seeding schemes. Finally, we compare the simulation results with real observations of the CEP of idler pulses generated by an OPA. The quantitative model presented provides a key tool for designing the next generation of low-noise CEP-stable OP(CP)A-based sources. PMID- 29328233 TI - Nonlinearity-aware 200 Gbit/s DMT transmission for C-band short-reach optical interconnects with a single packaged electro-absorption modulated laser. AB - We experimentally demonstrate the transmission of a 200 Gbit/s discrete multitone (DMT) at the soft forward error correction limit in an intensity-modulation direct-detection system with a single C-band packaged distributed feedback laser and traveling-wave electro absorption modulator (DFB-TWEAM), digital-to-analog converter and photodiode. The bit-power loaded DMT signal is transmitted over 1.6 km standard single-mode fiber with a net rate of 166.7 Gbit/s, achieving an effective electrical spectrum efficiency of 4.93 bit/s/Hz. Meanwhile, net rates of 174.2 Gbit/s and 179.5 Gbit/s are also demonstrated over 0.8 km SSMF and in an optical back-to-back case, respectively. The feature of the packaged DFB-TWEAM is presented. The nonlinearity-aware digital signal processing algorithm for channel equalization is mathematically described, which improves the signal-to-noise ratio up to 3.5 dB. PMID- 29328234 TI - Relative sensitivity variation law in the field of fluorescence intensity ratio thermometry. AB - We study the variation law of relative sensitivity in the field of fluorescence intensity ratio thermometry. It is theoretically demonstrated that there must be only one maximum value of relative sensitivity in the case in which there is a positive offset in fitting function. Moreover, the method to obtain this maximum is proposed. Experimental results, taking the D15/D50 levels of Eu3+ as examples, are in excellent accordance with the conclusion. The mechanism behind is then investigated, and other populating processes imposed on the D15 level, which exert negative outcome on thermal sensitivity, are found to play a key role in determination of this unique variation law. PMID- 29328235 TI - Non-diffracting beams for label-free imaging through turbid media. AB - We propose a new method to image through dynamically changing turbid media based on the scanning of non-diffractive laser beams. We use computer-generated holograms to create Airy beams and compare quantitatively the characteristics of their propagation in clear and turbid media. Imaging contrast is achieved by relative reflection of the scanned beams from the imaged surface. We implement our method to demonstrate experimentally our ability to image a chromium surface on a glass slide through 270 MUm of highly scattering milk/water mixtures with a resolution of several microns. PMID- 29328236 TI - Real-time Fourier transformation based on the bandwidth magnification of RF signals. AB - We demonstrate a novel real-time Fourier transformation scheme with megahertz level resolution realized by bandwidth magnification of radio frequency (RF) signals. Before the frequency-to-time mapping, the RF signal is modulated on an optical frequency comb, and then extracted by a Vernier comb filter. As a result, RF components can be separated in the spectrum with a greatly magnified optical bandwidth. Thus, even with limited dispersion provided by an ordinary optical fiber, the frequency-dependent pulses can be distinguished in the time domain. Experimentally, the RF signal with the frequency difference of 60 MHz is separated by around 123 ps in the time domain, equivalent to the dispersion of 1975.5 ps/GHz (2.47*105 ps/nm), while the physical dispersion is 1500 ps/nm. Thus, based on the bandwidth magnification of signals, the dispersion is equivalently amplified by 165 times. PMID- 29328238 TI - 2 MUm Doppler wind lidar with a Tm:fiber-laser-pumped Ho:YLF laser. AB - A 2 MUm Ho-doped ytrrium lithium fluoride (Ho:YLF) laser end-pumped by a 1.94 MUm Tm:fiber laser was developed. A laser system of a ring resonator oscillator and amplifier was operated at repetition rates of 200-5000 Hz at room temperature. The Q-switched outputs were 7.4 W at 5000 Hz and 4.25 W at 200 Hz. Injection seeding was applied to the ring resonator, and single-mode laser emission was obtained. The Tm:fiber-laser-pumped Ho:YLF laser was first used for Doppler wind lidar measurements, and wind profiles were obtained up to ranges of about 15 km in a range resolution of 96 m and an integration time of 1 s. PMID- 29328237 TI - Visible light optical coherence microscopy of the brain with isotropic femtoliter resolution in vivo. AB - Most flying-spot optical coherence tomography and optical coherence microscopy (OCM) systems use a symmetric confocal geometry, where the detection path retraces the illumination path starting from and ending with the spatial mode of a single-mode optical fiber. Here we describe a visible light OCM instrument that breaks this symmetry to improve transverse resolution without sacrificing collection efficiency in scattering tissue. This was achieved by overfilling a water immersion objective on the illumination path while maintaining a conventional Gaussian mode detection path (1/e2 intensity diameter ~0.82 Airy disks), enabling ~1.1 MUm full width at half-maximum (FWHM) transverse resolution. At the same time, a ~0.9 MUm FWHM axial resolution in tissue, achieved by a broadband visible light source, enabled femtoliter volume resolution. We characterized this instrument according to paraxial coherent microscopy theory and, finally, used it to image the meningeal layers, intravascular red blood cell-free layer, and myelinated axons in the mouse neocortex in vivo through the thinned skull. PMID- 29328239 TI - TE-polarized design for metallic slit lenses: a way to deep-subwavelength focusing over a broad wavelength range. AB - Slit arrays based on noble metals have been widely proposed as planar transverse magnetic (TM)-lenses, illuminated by a linearly polarized light with the polarization perpendicular to slits and implementing the focusing capability beyond the diffraction limit. However, due to intrinsic plasmonic losses, these TM-lenses cannot work efficiently in the ultraviolet wavelengths. In this Letter, taking advantage of the unique transmission through metallic slits not involving plasmonic losses, a metallic slit array with transverse-electric (TE)-polarized design is proposed, showing for the first time, to the best of our knowledge, the realization of sub-diffraction-limit focusing for ultraviolet light. Additionally, in contrast to the situations of TM-lenses, a wider slit leads to a greater phase delay and much larger slits can be arranged to construct the TE lenses, which is quite beneficial for practical fabrication. Furthermore, deep subwavelength focusing can be achieved by utilizing the immersing technology. PMID- 29328240 TI - Comparison of optical feedback dynamics of InAs/GaAs quantum-dot lasers emitting solely on ground or excited states. AB - We experimentally compare the dynamics of InAs/GaAs quantum dot lasers under optical feedback emitting exclusively on ground states (GSs) or excited states (ESs). By varying the feedback parameters and putting focus either on their short or long cavity regions, various periodic and chaotic oscillatory states are found. The GS laser is shown to be more resistant to feedback, benefiting from its strong relaxation oscillation damping. In contrast, the ES laser can easily be driven into complex dynamics. While the GS laser is of importance for the development of isolator-free transmitters, the ES laser is essential for applications taking advantages of chaos. PMID- 29328241 TI - Single-shot Fourier ptychography based on diffractive beam splitting. AB - An optical setup and corresponding reconstruction algorithm are proposed to realize single-shot Fourier ptychography (FP). Multiple angle-varied object waves are generated by placing a Dammann grating at a certain distance behind the object, and the generated image array of low resolution corresponding to different diffraction orders formed on the detector plane is recorded simultaneously in a single exposure. The amplitude, as well as the phase information of the object, can be properly reconstructed with a common FP algorithm from the recorded image array. This method eliminates the requirement for the angular scanning of common FP, and the total acquisition time is dramatically reduced. The feasibility of this proposed method was demonstrated both numerically and experimentally. The proposed method has the advantages of fast data acquisition and corresponding high temporal resolution, making it very suitable for applications in which high imaging speed is required. PMID- 29328242 TI - Efficient diode-pumped Er:KLu(WO4)2 laser at ~1.61 MUm. AB - We report on an efficient diode-pumped continuous-wave erbium-doped monoclinic double tungstate laser. It is based on a 1 at. % Er3+:KLu(WO4)2 (Er:KLuW) crystal cut along the Ng optical indicatrix axis. The Er:KLuW microchip laser, diode pumped at 0.98 MUm, generates 268 mW at 1.610 MUm with a slope efficiency of 30%. The output is linearly polarized (E||Nm), and the laser beam is nearly diffraction limited (Mp,m2<1.1). Spectroscopic properties of Er3+ in KLuW are also presented. The stimulated-emission cross-section sigmaSE is 0.46*10-20 cm2 at ~1.609 MUm for E||Nm. The microchip Er:KLuW laser outperforms the commercial Er,Yb:glass. PMID- 29328243 TI - Spatiotemporal sharply autofocused dual-Airy-ring Airy Gaussian vortex wave packets. AB - Here we investigate the propagation properties of spatiotemporal sharply autofocused single-Airy-ring Airy Gaussian vortex (AiRAiGV) and dual-Airy-ring Airy Gaussian vortex (dAiRAiGV) wave packets by solving the (3+1) D Schrodinger equation in free space. We can change the spatial part of the wave packets into Airy or Gaussian distribution by choosing the different spatial distribution factors bs. In particular, only when the shape of the pulses is set well with appropriate temporal distribution factor bt and initial velocity v in the temporal domain, dAiRAiGV wave packets can simultaneously autofocus in the spatial and temporal domains and the peak intensity is increased dozens of times at the focus more than that at the initial plane. Furthermore, properties of dAiRAiGV wave packets with a vortex in the center and off-axis vortex pairs are also discussed. PMID- 29328244 TI - Equivalence principle and quantum mechanics: quantum simulation with entangled photons. AB - Einstein's equivalence principle (EP) states the complete physical equivalence of a gravitational field and corresponding inertial field in an accelerated reference frame. However, to what extent the EP remains valid in non-relativistic quantum mechanics is a controversial issue. To avoid violation of the EP, Bargmann's superselection rule forbids a coherent superposition of states with different masses. Here we suggest a quantum simulation of non-relativistic Schrodinger particle dynamics in non-inertial reference frames, which is based on the propagation of polarization-entangled photon pairs in curved and birefringent optical waveguides and Hong-Ou-Mandel quantum interference measurement. The photonic simulator can emulate superposition of mass states, which would lead to violation of the EP. PMID- 29328245 TI - Raman dissipative soliton fiber laser pumped by an ASE source: publisher's note. AB - This publisher's note corrects a typo in the affiliations in Opt. Lett.42, 5162 (2017)OPLEDP0146-959210.1364/OL.42.005162. PMID- 29328246 TI - Plasmon-enhanced luminescence in novel complex conjugated polymer nanoparticles: publisher's note. AB - This publisher's note corrects errors in the affiliations in Opt. Lett.42, 3789 (2017).OPLEDP0146-959210.1364/OL.42.003789. PMID- 29328247 TI - Femtosecond Alexandrite laser passively mode-locked by an InP/InGaP quantum-dot saturable absorber. AB - An Alexandrite laser passively mode-locked using an InP/InGaP quantum-dot semiconductor saturable absorber mirror (QD-SESAM) was demonstrated. The laser was pumped at 532 nm and generated pulses as short as 380 fs at 775 nm with an average output power of 295 mW. To the best of our knowledge, this is the first report on a passively mode-locked femtosecond Alexandrite laser using a SESAM in general and a QD-SESAM in particular. PMID- 29328248 TI - Filamentation-free self-compression of mid-infrared pulses in birefringent crystals with second-order cascading-enhanced self-focusing nonlinearity. AB - We experimentally demonstrate virtually lossless, filamentation-free and energy scalable more than three-fold self-compression of mid-infrared laser pulses at 2.1 MUm in a birefringent medium (beta-BBO crystal), which stems from favorable interplay between the second-order cascading-enhanced self-phase modulation and anomalous group velocity dispersion. By choosing an appropriate input beam diameter and intensity, the self-compression down to sub-30 fs pulse widths with gigawatt peak power is achieved without the onset of beam filamentation and associated nonlinear losses due to the multiphoton absorption, yielding the energy throughput greater than 86%. PMID- 29328249 TI - Broadband near-infrared antireflection coatings fabricated by three-dimensional direct laser writing. AB - Three-dimensional direct laser writing via two-photon polymerization is used to fabricate anti-reflective structured surfaces (ARSSs) composed of subwavelength conicoid features optimized to operate over a wide bandwidth in the near-infrared range from 3700 cm-1 to 6600 cm-1 (2.7-1.52 MUm). Analytic Bruggemann effective medium calculations are used to predict nominal geometric parameters such as the fill factor of the constitutive conicoid features of the anti-reflective structured surfaces (ARSSs) presented here. The performance of the ARSSs was investigated experimentally using infrared reflection and transmission measurements. An enhancement of the transmittance by 1.35%-2.14% over a broadband spectral range from 3700 cm-1 to 6600 cm-1 (2.7-1.52 MUm) was achieved. We further report on finite-element-based reflection and transmission data using three-dimensional (3D) model geometries for comparison. A good agreement between experimental results and the finite-element-based numerical analysis is observed once as-fabricated deviations from the nominal conicoid forms are included in the model. 3D direct laser writing is demonstrated here as an efficient method for the fabrication and optimization of ARSSs designed for the infrared spectral range. PMID- 29328250 TI - Ultrafast saturable absorption of MoS2 nanosheets under different pulse-width excitation conditions. AB - The newly raised two-dimensional material MoS2 is regarded as an ideal candidate for saturated absorbers. Here, the open-aperture Z-scan method is used to study the saturation absorption (SA) response of monolayer and multilayer MoS2, considering laser irradiation with different pulse widths. Specifically, in cases of 10 ns and 10 ps laser pulses, the accumulative nonlinearity [e.g., free carrier absorption (FCA)] coupled with SA is found in both monolayer and multilayer MoS2. However, under a 65 fs pulse laser, the instantaneous nonlinearity [e.g., two-photon absorption (TPA)] and the SA effect turn to play a significant role. Additionally, the saturation of both TPA and FCA is observed in MoS2. Importantly, the modulation depth of MoS2 shows different change trends by adjusting the laser pulse width. PMID- 29328251 TI - Cavity-birefringence-dependent h-shaped pulse generation in a thulium-holmium doped fiber laser. AB - We report on a type of 2 MUm h-shaped pulse generation in a thulium-holmium-doped fiber laser and experimentally investigate its cavity birefringence and pump power dependences. An asymmetric nonlinear optical loop mirror is employed as an artificial saturable absorber, which incorporates ~52.7 m dispersion-shifted fiber and ~3.8 m ultra-high numerical aperture fiber to enhance the nonlinearity. The h-shaped pulse shows both a polarization state (PS) and pump power related evolutions, even when randomly weak birefringence fibers are employed. By further incorporating different lengths of high birefringence polarization-maintaining fiber (PMF), i.e., introducing different amounts of linear cavity birefringence, much larger pulse tuning ranges can be realized. In particular, when the PMF is lengthened to ~2.3 m through manipulating the PS, the achieved longest pulse duration of ~318.14 ns can almost cover the whole repetition period of ~323.96 ns, corresponding to a pulse duty circle of ~98.2%, the largest ever reported from a fiber laser, to the best of our knowledge. We demonstrate the related characteristics in detail. PMID- 29328252 TI - Phase modulator mode based on the pre-transitional effect of antiferroelectric liquid crystals. AB - We demonstrate a novel phase-only modulation mode based on the pre-transitional effect of the antiferroelectric liquid crystal. 2pi phase modulation without changing the polarization state of the incident light is achieved with a low field (1.8 V/MUm). This phase modulation mode also shows an ultrafast response time (less than 300 MUs) and a uniform optical texture with an easy fabrication process. This phase modulator can be applied to laser beam steering, virtual reality, and holograms, etc., in the future. PMID- 29328253 TI - Measurements of milli-Newton surface tension forces with tilted fiber Bragg gratings. AB - Small lateral forces (lower than 0.1 N) cannot normally be measured with conventional single-mode fiber-based sensors because of the high value of their Young modulus (>70 GPa). Here we demonstrate the measurement of lateral forces in the range from 0.2 to 1.4*10-3 N with a tilted fiber Bragg grating (TFBG) in conventional single-mode fiber pushed against the surface tension (ST) of a bead of water. The measured transmission changes of individual cladding mode resonances of the TFBG corresponding to these force values are of the order of 29 dB. Separate measurements of the contact angle between the surface of the water and the fiber are used to calibrate the sensor with help from the known value of ST for water. Once calibrated, a TFBG can be used to measure unknown forces in the same range or to measure an unknown ST, provided a separate force measurement is available. PMID- 29328254 TI - Optically induced transparency in bosonic cascade lasers. AB - Bosonic cascade lasers are terahertz (THz) lasers based on stimulated radiative transitions between bosonic condensates of excitons or exciton-polaritons confined in a trap. We study the interaction of an incoming THz pulse resonant in frequency with the transitions between neighboring energy levels of the cascade. We show that at certain optical pump conditions the cascade becomes transparent to the incident pulse: it neither absorbs nor amplifies it in the mean-field approximation. The populations of intermediate levels of the bosonic cascade change as the THz pulse passes, nevertheless. In comparison, a fermionic cascade laser does not reveal any of these properties. PMID- 29328255 TI - Continuous-wave-induced resonant spectral sidebands in soliton fiber lasers. AB - We observed the resonant sidebands similar to the Kelly sidebands, but caused by the coupling between continuous-wave (CW) and dispersive waves (DWs) in a mode locked ring fiber laser for the first time, to the best of our knowledge. The coupling between the CW and DWs is a linear process, which is different from the previously observed parametric sub-sidebands. The regimes of the CW-induced sidebands are discussed. The experimental results agree both qualitatively and quantitatively with theoretical analysis. The results enrich the nonlinear dynamics of ultrafast fiber lasers and may have potential in optically controlling mode-locked lasers. PMID- 29328256 TI - Nanoscale beam splitters based on gradient metasurfaces. AB - Beam splitters are essential components in various optical and photonic applications, for example, interferometers, multiplexers, and so on. Present beam splitters based on cubes or plates are normally bulky. Realizing beam splitters in nanoscales is useful to reduce the total size of photonic devices. We demonstrate here a beam splitter with nanoscale thickness based on a gradient metasurface comprising lithium niobate cylinder arrays. Since one unit cell of metasurface comprising two cylinder rows shows two opposite phase gradients, the incident light is split into different directions according to the generalized Snell's law. The split ratio is proven to be effectively tunable. PMID- 29328257 TI - Multi-electrode tunable liquid crystal lenses with one lithography step. AB - Electrically tunable lenses offer the possibility to control the focal distance by applying an electric field. Different liquid crystal tunable lenses have been demonstrated. In order to minimize lens aberrations, multi-electrode designs allow us to fine-tune the applied voltages for every possible focal distance. In this Letter, we provide a novel multi-electrode design in which only one lithography step is necessary, thereby offering a greatly simplified fabrication procedure compared to earlier proposed designs. The key factor is the use of a high-permittivity layer, in combination with floating electrodes. PMID- 29328258 TI - Quantum anomalous Hall-quantum spin Hall effect in optical superlattices. AB - We consider the topological characteristics of the spin-orbital coupling particles loaded in one-dimensional (1D) optical superlattices subject to the Zeeman field. The phase shift of the superlattice provides a virtual dimension which allows us to simulate two-dimensional topological phases with a physically 1D system. The system possesses a variety of quantum phase transitions over a large parametric space and two important topological phases, namely, quantum anomalous Hall (QAH) and quantum spin Hall (QSH) phases are found to coexist in the system, but they reside in different bandgaps. This new category of gap dependent QAH--QSH insulator paves the way for the possible observation of the coexistence of QSH and QAH effects at one platform. PMID- 29328259 TI - Ultra-high speed RF filtering switch based on stimulated Brillouin scattering. AB - Radio frequency (RF) filtering switch is highly desired for signal routing or manipulation in the RF system. Based on the stimulated Brillouin scattering effect and the electro-optics Pockels effect, we propose a novel RF filtering switch with a high-frequency filtering precision and a fast switching speed. We have experimentally demonstrated the RF filtering with a high precision of ~34 MHz, a wide operation bandwidth of ~18 GHz, and the RF switching at a speed of <100 ps, which is hundreds of times faster than the traditional RF switch. PMID- 29328260 TI - Fully digital programmable optical frequency comb generation and application. AB - We propose a fully digital programmable optical frequency comb (OFC) generation scheme based on binary phase-sampling modulation, wherein an optimized bit sequence is applied to phase modulate a narrow-linewidth light wave. Programming the bit sequence enables us to tune both the comb spacing and comb-line number (i.e., number of comb lines). The programmable OFCs are also characterized by ultra-flat spectral envelope, uniform temporal envelope, and stable bias-free setup. Target OFCs are digitally programmed to have 19, 39, 61, 81, 101, or 201 comb lines and to have a 100, 50, 20, 10, 5, or 1 MHz comb spacing. As a demonstration, a scanning-free temperature sensing system using a proposed OFC with 1001 comb lines was also implemented with a sensitivity of 0.89 degrees C/MHz. PMID- 29328261 TI - Improved 2 * 2 Mach-Zehnder switching using coupled-resonator photonic-crystal nanobeams. AB - Design and simulation results are presented for an on-chip 2*2 Mach-Zehnder-based optical switch where each arm of the interferometer is composed of a coupled resonator optical waveguide. The individual resonators are one-dimensional photonic crystal nanobeam cavities, and switching occurs through thermally induced changes in the refractive index of the silicon structure using integrated heating pads. The performance of the coupled-resonator device is directly compared to its single resonator counterpart, and significant improvement is found in the bar-state CT metric. PMID- 29328262 TI - Wavelength-tunable Hermite-Gaussian modes and an orbital-angular-momentum-tunable vortex beam in a dual-off-axis pumped Yb:CALGO laser. AB - A dual-off-axis pumping scheme is presented to generate wavelength-tunable high order Hermite-Gaussian (HG) modes in Yb:CaGdAlO4 lasers. The mode and wavelength can be actively controlled by the off-axis displacements and pump power. The purities of the output HG modes are quantified by intensity distributions and the measured M2 values. The highest order reaches m=15 for stable HGm,0 mode, and wavelength-tunable width is about 10 nm. Moreover, through externally converting the HGm,0 modes, the vortex beams carrying orbital angular momentum (OAM) with a large OAM-tunable range from +/-1h to +/-15h are produced. This work is effective for largely scaling the spectral and OAM tunable ranges of optical vortex beams. PMID- 29328263 TI - Common-path spectral interferometry for single-shot terahertz electro-optics detection: publisher's note. AB - This publisher's note corrects an error in one of the authors' names and an error in one of the grant numbers in Opt. Lett.42, 4263 (2017). PMID- 29328264 TI - Mid-infrared supercontinuum generation from 1.6 to >11 MUm using concatenated step-index fluoride and chalcogenide fibers. AB - We demonstrate an all-fiber supercontinuum source that generates a continuous spectrum from 1.6 MUm to >11 MUm with 417 mW on-time average power at 33% duty cycle. By utilizing a master oscillator power amplifier pump with three amplification stages and concatenating solid core ZBLAN, arsenic sulfide, and arsenic selenide fibers, we shift 1550 nm light to ~4.5 MUm, ~6.5 MUm, and >11 MUm, respectively. With 69 mW past 7.5 MUm, this source provides both high power and broad spectral expansion, while outputting a single fundamental mode. PMID- 29328265 TI - In-fiber high-speed recognition of incoherent-light broadband energy spectrum patterns. AB - A fiber-optic system is proposed and experimentally demonstrated for real-time, on-the-fly identification of an incoherent-light energy spectrum pattern based on dispersion-induced time-spectrum convolution. In the proposed system, the incoming frequency-spectrum patterns to be identified are modulated by a time mapped version of the target intensity profile. Following propagation through a suitable fiber-optic dispersive medium, the measured output temporal waveform provides a correlation of the incoming spectra with the programmed target pattern. This enables direct, real-time detection of the matching energy spectra, without any further numerical post-processing. We experimentally demonstrate successful recognition of a target infrared spectral pattern, extending over a bandwidth of 1.5 THz with a resolution of ~12 GHz, with sub-megahertz update rates. A path for further performance improvements is also suggested. PMID- 29328266 TI - Nonlinear refractive index measurements using time-resolved digital holography. AB - In this Letter, a novel method to evaluate nonlinear refractive index using time resolved digital holographic microscopy is introduced. To demonstrate the viability of the method, cross-correlative nonlinear refractive index values for sapphire are measured experimentally: 2.75.10-20 m2/W at 1030 nm and 4.10.10-20 m2/W 515 nm wavelengths. The obtained results for sapphire are compared to those available in literature obtained by other methods. PMID- 29328267 TI - 25 W single-frequency, low noise fiber MOPA at 1120 nm. AB - This Letter reports on the development of a 25 W single-frequency, all-fiber master oscillator power amplifier (MOPA) operating at 1120 nm. By heating the gain fiber at 75 degrees C, an output power of 25.3 W is achieved with an optical to-optical efficiency of 53.5%. The output shows no sign of stimulated Brillouin scattering and the signal to amplified spontaneous emission ratio is close to 40 dB. A M2 value of 1.15 and a polarization extinction ratio of 17 dB are measured. The relative intensity noise of the output is also characterized, reaching -155 dBc/Hz at 10 MHz at the maximum output power. The study of the noise dynamics highlights, for the first time to the best of our knowledge, an unpredicted behavior due to the strong backward amplified spontaneous emission. PMID- 29328268 TI - Backscatter particle image velocimetry via optical time-of-flight sectioning. AB - Conventional particle image velocimetry (PIV) configurations require a minimum of two optical access ports, inherently restricting the technique to a limited class of flows. Here, the development and application of a novel method of backscattered time-gated PIV requiring a single-optical-access port is described along with preliminary results. The light backscattered from a seeded flow is imaged over a narrow optical depth selected by an optical Kerr effect (OKE) time gate. The picosecond duration of the OKE time gate essentially replicates the width of the laser sheet of conventional PIV by limiting detected photons to a narrow time-of-flight within the flow. Thus, scattering noise from outside the measurement volume is eliminated. This PIV via the optical time-of-flight sectioning technique can be useful in systems with limited optical access and in flows near walls or other scattering surfaces. PMID- 29328269 TI - Generation of 400 MUW at 17.5 um using a two-color Yb fiber chirped pulse amplifier: erratum. AB - An Erratum is presented to correct the reported [Opt. Lett.36, 1080 (2011)OPLEDP0146-959210.1364/OL.36.001080] power of the generated long wavelength, mid-infrared power. PMID- 29328270 TI - Ultrasensitive fiber tilt sensor based on a mobile inscribed microbubble along the arc-shaped inwall of the microcavity: publisher's note. AB - This publisher's note corrects an error in the funding section in Opt. Lett.42, 4418 (2017).OPLEDP0146-959210.1364/OL.42.004418. PMID- 29328271 TI - Integrated diamond Raman laser pumped in the near-visible. AB - Using a high-Q diamond microresonator (Q>300,000) interfaced with high-power handling directly-written doped-glass waveguides, we demonstrate a Raman laser in an integrated platform pumped in the near-visible. Both TM-to-TE and TE-to-TE lasing is observed, with a Raman lasing threshold as low as 20 mW and Stokes power of over 1 mW at 120 mW pump power. Stokes emission is tuned over a 150 nm (60 THz) bandwidth of approximately 875 nm wavelength, corresponding to 17.5% of the center frequency. PMID- 29328272 TI - Direct laser writing combined with a phase-delay probe. AB - We develop on lithium niobate crystals a photorefractive direct-laser-writing approach, in which we combine in one beam both direct writing and phase-delay probing functionalities to extract the in situ information of the refractive index or the electrostatic field. The phase-delay signal, predicted well by the photorefractive theory, is used as feedback for tuning the exposure time or scanning speed of the focused laser in order to control the refractive index change (Deltan) at single points and scanning lines. Different features found in creating Deltan at the points and lines are explained by the different photorefractive responses in the two cases. PMID- 29328273 TI - Optothermal control of gains in erbium-doped whispering-gallery microresonators. AB - Erbium-doped whispering-gallery-mode (WGM) microcavities have great potential in many important applications, such as the precision detection and the micro/nano laser. However, they are sensitive to the fluctuations from the pump laser and the environment. Here we demonstrate the precise controlling of transmission spectra and optical gains using optothermal scanning methods in erbium-doped WGM microcavities. The transmission spectrum of the probe signal exhibits the transition between asymmetric Fano-like resonance and the Lorentz peak (or dip) through tuning the input frequency and the scanning speed of the pump laser. In particular, the analytical calculations can fit well with our experimental results through adiabatically eliminating the anticlockwise optical mode. This Letter shows that the optothermal control of gains is more robust to external noises, which paves a crucial step toward the application in the ultra-sensitive detection. PMID- 29328274 TI - Photonics-enabled compressive sensing with spectral encoding using an incoherent broadband source. AB - In this Letter, we propose an approach to achieving photonics-enabled compressive sensing of sparse wideband radio frequency signals in which an incoherent broadband source is applied, and the mixing and integration functions are realized in the optical domain. A spectrum shaper is employed to slice and encode the spectrum of the broadband light according to a predetermined random sequence. Because of the dispersion-induced group delay, the mixing between the incoming signal and the random bit sequence is achieved. At the output of the spectrum shaper, an array of photodetectors is employed to realize down-sampling, and the input sparse signal can be captured in a single-shot mode. Since no pulsed laser is employed, our scheme obviates the need for time-domain synchronization between the repetitive ultra-fast pulses and the random sequence. Experimental demonstrations and numerical results are presented to verify the feasibility and potential of the approach. PMID- 29328275 TI - Fabricated nanogap-rich plasmonic nanostructures through an optothermal surface bubble in a droplet. AB - A rapid and cost-effective method for the fabrication of nanogap-rich structures is demonstrated in this Letter. The method utilizes the Marangoni convection around an optothermal surface bubble inside a liquid droplet with a nanoliter volume. The liquid droplet containing metallic nanoparticles reduces the sample consumption and confines the liquid flow. The optothermal surface bubble creates a strong convective flow that allows for the rapid deposition of the metallic nanoparticles to form nanogap-rich structures on any substrate under ambient conditions. This method will enable a broad range of applications such as biosensing, environmental analysis, and nonlinear optics. PMID- 29328276 TI - Femto/nano-second switchable passively mode-locked fiber laser with analytic modeling by the cubic-quintic Ginzburg-Landau equation. AB - We report a passively mode-locked erbium-doped fiber laser with pulse widths switchable from 473 fs to 76.8 ns, where the fundamental mode-locking, noise-like pulse, nanosecond mode-locking, and dual-width mode-locking (DML) are obtained by adjusting a polarization controller. Co-existence of femto- and nano-second pulses in DML is attributed to the gain balancing. Analytic modeling of the fiber laser with the cubic-quintic Ginzburg-Landau equation is presented, in which the pulse widths are calculated as functions of dispersion, self-phase modulation (SPM), cubic saturable absorption (SA), and quintic SA. The generation of nanosecond pulses is caused by the weakened intracavity pulse-shortening strength, the reduced effective SPM, and the inclusion of quintic SA in the laser cavity. PMID- 29328277 TI - Efficient 1.7 MUm light source based on KTA-OPO derived by Nd:YVO4 self-Raman laser. AB - An intra-cavity optical parametric oscillator (OPO) emitting at 1.7 MUm derived by Nd:YVO4 self-Raman laser is demonstrated in this Letter, with a KTiOAsO4 (KTA) crystal used as nonlinear optical crystal. A laser diode end-pumped acousto-optic Q-switched Nd:YVO4 self-Raman laser at 1176 nm was employed as the pump source. At an incident pump power of 12.1 W and a pulse repetition frequency of 60 kHz, average output power up to 1.2 W signal light at 1742 nm was obtained, with diode to-signal conversion efficiency of 10%. The pulse width was about 11 ns and spectral line width was less than 0.5 nm for the signal light. The results show that compact intra-cavity KTA-OPO derived by Nd:YVO4 self-Raman laser is an efficient method for 1.7 MUm waveband laser generation, with potential applications in biological imaging, laser therapy, special materials processing, etc. PMID- 29328279 TI - Tunable mid-infrared source from an ultrafast two-color Yb:fiber chirped pulse amplifier: erratum. AB - This Erratum is presented to correct the reported [Opt. Lett.37, 3570 (2012)] power of the generated long wavelength, mid-infrared power. PMID- 29328278 TI - Controlled-phase manipulation module for orbital-angular-momentum photon states. AB - Phase manipulation is essential to quantum information processing, for which the orbital angular momentum (OAM) of photon is a promising high-dimensional resource. Dove prism (DP) is one of the most important elements to realize the nondestructive phase manipulation of OAM photons. DP usually changes the polarization of light and thus increases the manipulation error for a spin-OAM hybrid state. DP in a Sagnac interferometer also introduces a mode-dependent global phase to the OAM mode. In this work, we implemented a high-dimensional controlled-phase manipulation module (PMM), which can compensate the mode dependent global phase and thus preserve the phase in the spin-OAM hybrid superposition state. The PMM is stable for free running and is suitable to realize the high-dimensional controlled-phase gate for spin-OAM hybrid states. Considering the Sagnac-based structure, the PMM is also suitable for classical communication with the spin-OAM hybrid light field. PMID- 29328280 TI - Strategies for achieving intense single-cycle pulses with in-line post compression setups. AB - Intense few- and single-cycle pulses are powerful tools in different fields of science Today, third- and higher-order terms in the remnant spectral phase of the pulses remain a major obstacle for obtaining high-quality few- and single-cycle pulses from in-line post-compression setups. In this Letter, we show how input pulse shaping can successfully be applied to standard post-compression setups to minimize the occurrence of high-order phase components during nonlinear propagation and to directly obtain pulses with durations down to 3 fs. Furthermore, by combining this pulse shaping of the input pulse with new generation broadband chirped mirrors and material addition for remnant third order phase correction, pulses down to 2.2 fs duration have been measured. PMID- 29328281 TI - Thermally sensitive scattering of terahertz waves by coated cylinders for tunable invisibility and masking. AB - Temperature-sensitive scattering of terahertz (THz) waves by infinitely long, cylindrical core-shell structures was theoretically studied. Each structure is a dielectric cylinder coated with an InSb shell illuminated by either a transverse electric (TE) or a transverse-magnetic (TM) plane wave. InSb is a thermally tunable semiconductor showing a transition from dielectric to plasmonic state at THz frequencies. Accordingly, the total scattering efficiency (TSE) can be thermally tuned for both polarization states of the incident plane wave. The spectral locations of the maxima and minima of the TSE of an InSb-coated cylinder can be exploited for cloaking the core. At least three scenarios lead to the strong suppression of scattering by a single core-shell structure in different spectral regimes when the temperature is fixed. The excitation of localized surface-plasmon resonances is the feature being common for two of them, while the effect of volumetric resonance dominates in the third scenario. Regimes that are either highly or weakly sensitive to the core material were identified. Weak sensitivity enables masking, i.e., the core material cannot be identified by a far-zone observer. The TSE minima are usually significantly sensitive to the polarization state, but ones with weak sensitivity to the polarization state also exist. PMID- 29328282 TI - Recommended conceptual optical system design for China's Large Optical-infrared Telescope (LOT). AB - Recently, China is planning to construct a new large optical-infrared telescope (LOT), in which the aperture of the primary mirror is as large as 12m. China's LOT is a general-purpose telescope, which is aimed to work with multiple scientific instruments such as spectrographs. Based on the requirements of LOT telescope, we have compared the performance of Ritchey-Chretien (RC) design and Aplanatic-Gregorian (AG) design from the perspective of scientific performance and construction cost. By taking the primary focal ratio, Nasmyth focal ratio, and telescope's site condition into consideration, we finally recommend a RC f/1.6 design configuration for LOT's Nasmyth telescope system. Unlike the general identical configuration, we choose a non-identical configuration for the telescope system which has a shorter Cassegrain focal ratio compared to the designed Nasmyth focal ratio. The non-identical design can allow for a shorter back focal distance and therefore a shorter telescope fork to guarantee the gravitational stability of the whole telescope structure, as well as relatively lower construction cost. Detailed analysis for the feasibility of our recommended design is provided in this paper. PMID- 29328283 TI - Tailoring the quality factors and nonlinear response in hybrid plasmonic dielectric metasurfaces. AB - Plasmonic nanoantennas and metamaterials concentrate optical energy into nanometric volumes strongly enhancing the light-matter interaction. This makes them promising platforms for optical sensing, nonlinear effects and quantum optics. However, absorption losses and radiative damping result in broad, low quality factor (Q) resonances of plasmonic systems that significantly limit their performance. Here, we develop a hybrid plasmonic/dielectric metasurface that can simultaneously achieve high Q and large field enhancement values in the near infrared by forming a hybridized mode between the nanoantennas' plasmonic mode and the photonic waveguide mode of Si device layer. The tunability of the modes and quality factors of our platform allows us to study the effect of the geometric parameters on the optical properties of the metasurface. We demonstrate that the strongest near field enhancement and nonlinear signal generation can be achieved by balancing the high Q factors and in-coupling efficiency in hybrid resonators. PMID- 29328284 TI - Improving the performance of hollow fiber surface plasssmon resonance sensor with one dimensional photonic crystal structure. AB - A high performance hollow fiber (HF) surface plasmon resonance (SPR) sensor utilizing one-dimensional photonic crystal (1DPC) is proposed. The performance of the designed sensor is analyzed theoretically with respect to the center wavelength and the bilayer period. Because the light transmitted in the sensor mostly have large incident angles, the center wavelength of the 1DPC should shift to longer wavelength to ensure the band gap covers the spectrum range of the incident light. The sensor exhibits better performance when the detection spectral range is located in the band gap of 1DPC for incident angle larger than 80 degrees . Compared to conventional HF SPR sensor, the figure of merit (FOM) of the proposed sensor is three to four times higher while the sensitivity is comparable. Moreover, within the limited spectrum range of 400 to 800nm, the proposed sensor have much wider refractive index (RI) detection range and can detect sensed medium with low RI very close to the supporting tube. PMID- 29328285 TI - Astigmatic laser beams with a large orbital angular momentum. AB - We show that an elliptic Gaussian beam, focused by a cylindrical lens, can be represented as a linear combination of a countable number of only even angular harmonics with both positive and negative topological charge. For the orbital angular momentum (OAM) of the astigmatic Gaussian beam, an exact expression is obtained in a form of a converging series of the Legendre functions of the second kind. It is shown that at some conditions only the terms with the positive or negative topological charge are remained in this series. Using a hybrid numeric experimental approach, we obtained the normalized OAM of the astigmatic beam, equal to 109, which is just 6% different from the exact OAM of 116, calculated by the equation. To generate such laser beams, there is no need in special optical elements such as spiral phase plates. The OAM of such beams can be adjusted by varying the waist radius of the Gaussian beam and the focal length of the cylindrical lens. The OAM of such beams can reach large values. PMID- 29328286 TI - Information-weighted constrained regularization for particle size distribution recovery in multiangle dynamic light scattering. AB - In particle size measurement with dynamic light scattering (DLS), it is difficult to get an accurate recovery of a bimodal particle size distribution (PSD) with a peak position ratio less than ~2:1, especially when large particles (>350nm) are present. This is due to the inherent noise in the autocorrelation function (ACF) data and the scarce utilization of PSD information during the inversion process. In this paper, the PSD information distribution in the ACF data is investigated. It was found that the initial decay section of the ACF contains more information, especially for a bimodal PSD. Based on this, an information-weighted constrained regularization (IWCR) method is proposed in this paper and applied in multiangle DLS analysis for bimodal PSD recovery. By using larger (or smaller) coefficients for weighting the ACF data, more (or less) weight can then be given to the initial part of the ACF. In this way, the IWCR method can enhance utilization of the PSD information in the ACF data, and effectively weaken the effect of noise at large delay time on PSD recovery. Using this method, bimodal PSDs (with nominal diameters of 400:608 nm, 448:608 nm, 500:600 nm) were recovered successfully from simulated data and it appears that the IWCR method can improve the recovery resolution for closely spaced bimodal particles. Results of the PSD recovery from experimental DLS data confirm the performance of this method. PMID- 29328287 TI - Method for precise evaluation of refractive index modulation amplitude inside the volume Bragg grating recorded in photo-thermo-refractive glass. AB - In this paper, we present a method for achieving precise evaluation of amplitude of refractive index modulation (RIM) inside the volume Bragg grating (VBG) recorded in photo-thermo-refractive (PTR) glasses. The Gaussian divergence characteristics of the incident beam is theoretically considered when calculating the angular selectivity of VBG, and the profiles of experimental angular selectivity curves are utilized to determine the value of RIM with one step. The effectiveness of our proposed method is experimentally verified. This method is applicable even if the full width at half maximum (FWHM) of VBG's angular selectivity curve has the same order of magnitude as or is less than the beam divergence. PMID- 29328288 TI - Invisible gateway for both light waves and rays. AB - Considering that previous invisible gateways (an open entrance that only blocks electromagnetic waves) based on super-scatters designed by transformation optics cannot effectively work for narrow beams and light rays that do not touch negative refractive index material, we explore a new way to realize an improved invisible gateway that can give a good performance for both light waves and rays. In all previous invisible gateways, they require a finite thickness of the wall and the gateway. For the improved invisible gateway proposed in this study, there is no requirement on the thickness of the wall and gateway, i.e. the wall and gateway can be infinitely thin. Our study will go a further step to realize the invisible gateway in fiction. PMID- 29328289 TI - Electrical switching of birefringence in zirconium phosphate colloids with various solvents. AB - Even though a graphene-oxide (GO) dispersion is attractive for electro-optical switching devices because of its high Kerr coefficient, it has several limitations such as chemical instability and optical loss due to absorption at visible wavelengths. Here we introduce the use of tetrabutylammonium-tethered alpha-zirconium phosphate (TBA-ZrP) colloid in various solvents for electro optical switching devices; the TBA-ZrP colloid is chemically stable and optically transparent. We find that the electrical switching behavior of TBA-ZrP is sensitively dependent on the type of solvent. The TBA-ZrP colloid in acetone exhibits the highest effective Kerr coefficient and the fastest switching time, which is related to the unusual behavior of the viscosity of the TBA-ZrP colloid in acetone. Its viscosity is relatively low and less sensitive to concentration compared to ZrP in other solvents. This indicates that the motion of individual nanoparticles is relatively less restricted in acetone. These findings may be useful in developing electro-optical devices using lyotropic liquid crystal colloids. PMID- 29328290 TI - Design of narrowband Bragg spectral filters in subwavelength grating metamaterial waveguides. AB - Properties of reflection and transmission spectral filters based on Bragg gratings in subwavelength grating (SWG) metamaterial waveguides on silicon-on insulator platform have been analyzed using proprietary 2D and 3D simulation tools based on Fourier modal method and the coupled-mode theory. We also demonstrate that the coupled Bloch mode theory can be advantageously applied to design of Bragg gratings in SWG waveguides. By combining different techniques, including judiciously positioning silicon loading segments within the evanescent field of the SWG waveguide and making use of its dispersion properties, it is possible to attain sub-nanometer spectral bandwidths for both reflection and transmission filters in the wavelength range of 1550 nm while keeping minimum structural features of the filters as large as 100 nm. Numerical simulations have also shown that a few nanometer jitter in the size and position of Si segments is well tolerated in our filter designs. PMID- 29328291 TI - Whispering gallery modes in a single silica microparticle attached to an optical microfiber and their application for highly sensitive displacement sensing. AB - A compact and relatively stable structure is experimentally demonstrated to excite whispering gallery modes (WGMs) in a single chemically fabricated silica microparticles with a diameter of around 10.6 MUm attached to an optical microfiber. The resonance dip with an extinction ratio of 14 dB and Q factor of around 300 has been achieved. Based on the WGMs in this structure, an in-line fiber-optic displacement sensor is presented with a high sensitivity of 33 dB/mm and a measurement range of over 400 MUm. The measurement resolution of this displacement sensor can reach to ~10 MUm. The good reversibility and repeatability are also verified. This work offers a scheme to observe the WGMs in a single silica microparticles and demonstrates their application for in-line highly-sensitive displacement sensing. PMID- 29328292 TI - Experimental observation of quantum state-independent contextuality under no signaling conditions. AB - Contextuality, the impossibility of assigning context-independent measurement outcomes, is a critical resource for quantum computation and communication. No signaling between successive measurements is an essential requirement that should be accomplished in any test of quantum contextuality and that is difficult to achieve in practice. Here, we introduce an optimal quantum state-independent contextuality inequality in which the deviation from the classical bound is maximal. We then experimentally test it using single photons generated from a defect in a bulk silicon carbide, while satisfying the requirement of no signaling within the experimental error. Our results shed new light on the study of quantum contextuality under no-signaling conditions. PMID- 29328293 TI - Whispering gallery mode resonator sensor for in situ measurements of hydrogel gelation. AB - Whispering gallery mode (WGM) resonators are compact and ultrasensitive devices, which enable label-free sensing at the single-molecule level. Despite their high sensitivity, WGM resonators have not been thoroughly investigated for use in dynamic biochemical processes including molecular diffusion and polymerization. In this work, the first report of using WGM sensors to continuously monitor a chemical reaction (i.e. gelation) in situ in a hydrogel is described. Specifically, we monitor and quantify the gelation dynamics of polyacrylamide hydrogels using WGM resonators and compare the results to an established measurement method based on rheology. Rheology measures changes in viscoelasticity, while WGM resonators measure changes in refractive index. Different gelation conditions were studied by varying the total monomer concentration and crosslinker concentration of the hydrogel precursor solution, and the resulting similarities and differences in the signal from the WGM resonator and rheology are elucidated. This work demonstrates that WGM alone or in combination with rheology can be used to investigate the gelation dynamics of hydrogels to provide insights into their gelation mechanisms. PMID- 29328294 TI - State-switchable and wavelength-tunable gain-switched mid-infrared fiber laser in the wavelength region around 2.94 MUm. AB - We demonstrate a gain-switched singly Ho3+-doped ZBLAN fiber laser for the first time in the wavelength region around 2.94 MUm which circumvents the strong water vapor lines. Four switchable gain-switched temporal states with 1/n (n = 4,3,2,1) pump repetition rates are first observed. The influences of pump power (pulse energy), repetition rate, duty cycle (pulse duration), and laser wavelength on their characteristics are studied, respectively. The results indicate that high pump repetition rate, large pump duty cycle, and short laser wavelength are beneficial for obtaining more gain-switched temporal states. For the case (n = 1), the increased pump repetition rate contributes to the increased pulse duration while decreased pulse energy and peak power. While MUs-level pump pulse duration variation has an almost negligible effect on them. By introducing a plane ruled grating, the wavelength tuning was performed yielding a tuning range of 105 nm from 2895.5 nm to 3000.5 nm which just overlays the peak region of liquid water absorption. Finally, further optimizing of laser performances is discussed as well. This demonstration is helpful for preliminarily designing, prior to constructing a mid-infrared gain-switched laser which can find direct applications in laser surgery. PMID- 29328295 TI - Bright nanowire single photon source based on SiV centers in diamond. AB - The practical implementation of many quantum technologies relies on the development of robust and bright single photon sources that operate at room temperature. The negatively charged silicon-vacancy (SiV-) color center in diamond is a possible candidate for such a single photon source. However, due to the high refraction index mismatch to air, color centers in diamond typically exhibit low photon out-coupling. An additional shortcoming is due to the random localization of native defects in the diamond sample. Here we demonstrate deterministic implantation of Si ions with high conversion efficiency to single SiV- centers, targeted to fabricated nanowires. The co-localization of single SiV centers with the nanostructures yields a ten times higher light coupling efficiency than for single SiV- centers in bulk diamond. This enhanced photon out coupling, together with the intrinsic scalability of the SiV- creation method, enables a new class of devices for integrated photonics and quantum science. PMID- 29328296 TI - Laser heterodyne interferometer with rotational error compensation for precision displacement measurement. AB - A laser heterodyne interferometer with rotational error compensation is proposed for precision displacement measurement. In this interferometer, the rotational error of the measured object is obtained by using an angle detecting unit which is composed of a semi-reflective film, a polarizing beam splitter, a quarter-wave plate, a convex lens and a two-dimensional position sensitive detector. And the obtained rotational angle is used for compensating its influence on displacement measurement result. The optical configuration of the proposed interferometer is designed, and the mathematical model for displacement measurement with rotational error compensation is established. The coupling effect of axial displacement on rotational angle measurement and the rotational angle range used for compensation on displacement measurement are discussed in detail. To verify feasibility of the proposed interferometer, the experimental setup was constructed and several verification experiments were performed. PMID- 29328297 TI - Detecting fast signals beyond bandwidth of detectors based on computational temporal ghost imaging. AB - Measurement of fast signal is getting more and more important in many fields. In this paper, we propose to detect a temporal signal based on the idea of computational ghost imaging (GI), which can greatly reduce requirements on bandwidth of detectors. In experiments, we implement retrieving of a temporal signal with time scale of 50ns using a detector of 1kHz bandwidth, which is much lower than the requirement on bandwidth of detector according to information theory. The performance of our technique are also investigated under different detection bandwidths. PMID- 29328298 TI - Instantaneous one-angle white-light scatterometer. AB - We present a white light scatterometer operating at a unique scattering direction. Mechanical motions and wavelength scans are removed. The technique provides an immediate flexible characterization of roughness with no loss of resolution. PMID- 29328299 TI - Coherent modulation up to 100 GBd 16QAM using silicon-organic hybrid (SOH) devices. AB - We demonstrate the generation of higher-order modulation formats using silicon based inphase/quadrature (IQ) modulators at symbol rates of up to 100 GBd. Our devices exploit the advantages of silicon-organic hybrid (SOH) integration, which combines silicon-on-insulator waveguides with highly efficient organic electro optic (EO) cladding materials to enable small drive voltages and sub-millimeter device lengths. In our experiments, we use an SOH IQ modulator with a pi-voltage of 1.6 V to generate 100 GBd 16QAM signals. This is the first time that the 100 GBd mark is reached with an IQ modulator realized on a semiconductor substrate, leading to a single-polarization line rate of 400 Gbit/s. The peak-to-peak drive voltages amount to 1.5 Vpp, corresponding to an electrical energy dissipation in the modulator of only 25 fJ/bit. PMID- 29328300 TI - Effects of edge inclination angles on whispering-gallery modes in printable wedge microdisk lasers. AB - The ink-jet technique was developed to print the wedge polymer microdisk lasers. The characterization of these lasers was implemented using a free-space optics measurement setup. It was found that disks of larger edge inclination angles have a larger free spectral range (FSR) and a lower resonance wavelength difference between the fundamental transverse electric (TE) and transverse magnetic (TM) whispering-gallery modes (WGMs). This behavior was also confirmed with simulations based on the modified Oxborrow's model with perfectly matched layers (PMLs), which was adopted to accurately calculate the eigenfrequencies, electric field distributions, and quality parameters of modes in the axisymmetric microdisk resonators. Combined with the nearly equivalent quality factor (Q factor) and finesse factor (F-factor) variations, the correlations between the TE and left adjacent TM modes were theoretically demonstrated. When the edge inclination angle is varied, the distinguishable mode distribution facilitates the precise estimation of a resonance wavelength shift. Therefore, the flexible and efficient nature of wedge polymer microdisk lasers extends their potential applications in precision sensing technology. PMID- 29328301 TI - Coherence-resolution relationship in holographic and coherent diffractive imaging. AB - We study by numerical simulation how spatial coherence affects the reconstruction quality of images in coherent diffractive x-ray imaging. Using a conceptually simple, but computationally demanding approach, we have simulated diffraction data recorded under partial coherence, and then use the data for iterative reconstruction algorithms using a support constraint. By comparison of experimental regimes and parameters, we observe a significantly higher robustness against partially coherent illumination in the near-field compared to the far field setting. PMID- 29328302 TI - Sliding sensor using fiber Bragg grating for mechanical fingers. AB - A sliding sensor based on a fiber Bragg grating (FBG) was proposed to enable mechanical fingers to softly grasp an object. FBG strain sensors are embedded in a polymeric material as a sensing element to obtain sliding information. This study expounded the structural design of the sliding sensor and the mechanism of sliding sensation, which were verified using the finite element simulation. The static and dynamic performances of the sliding sensor were studied experimentally. Finally, the sensing signals were processed using fuzzy logic. Results show that the FBG sliding sensor with a simple structure has high sensitivity and can reliably detect the contact state of the target object, thereby providing a design scheme for the study of the sliding sense of mechanical fingers. PMID- 29328303 TI - Tunable and channel spacing precisely controlled comb filters based on the fused taper technology. AB - We propose and demonstrate an adjustable all-fiber comb filter with precisely controlled channel spacing by employing a tapered fiber in one arm of a Mach Zehnder interferometer (MZI) for the first time. Using fused taper technology to draw the fiber, we can precisely control the optical path difference between the two arms of the MZI, thus realizing a precisely controllable channel spacing. By rotating the polarization controller state in the other arm of the MZI, the transmission spectrum wavelength can be continuously tuned. Comb filters with controllable channel spacings from 0.2 to 3.0 nm have been numerically studied and achieved in experiment. Applications of a filter based on a multi-wavelength tunable all-fiber laser source are also demonstrated. PMID- 29328304 TI - Optofluidic refractive-index sensors employing bent waveguide structures for low cost, rapid chemical and biomedical sensing. AB - We propose and develop an intensity-detection-based refractive-index (RI) sensor for low-cost, rapid RI sensing. The sensor is composed of a polymer bent ridge waveguide (BRWG) structure on a low-cost glass substrate and is integrated with a microfluidic channel. Different-RI solutions flowing through the BRWG sensing region induce output optical power variations caused by optical bend losses, enabling simple and real-time RI detection. Additionally, the sensors are fabricated using rapid and cost-effective vacuum-less processes, attaining the low cost and high throughput required for mass production. A good RI solution of 5.31 10-4 * RIU-1 is achieved from the RI experiments. This study demonstrates mass-producible and compact RI sensors for rapid and sensitive chemical analysis and biomedical sensing. PMID- 29328305 TI - Analysis of photonic noise generated due to Kerr nonlinearity in silicon ring resonators. AB - The Kerr effect in silicon ring resonators (RRs) is widely used for switching and regeneration of optical communications signals. In addition, it has been shown to considerably limit the performance of refractive index sensors based on high quality-factor RRs. While the Kerr effect's impact on output signals of silicon RRs is well known, its influence on the properties of the output noise is yet to be explored. In this work, we analytically and numerically analyze the noise properties of Kerr effect in silicon RRs. We show that the input power, RR's bandwidth, and input optical signal to noise ratio (OSNR) have significant influence on the power and distribution of the output noise. We use the developed noise model to evaluate the RR's noise figure and output noise distribution for optical communications and sensing applications. These noise properties can be used for the design and performance evaluation of optical communications systems and sensors using silicon photonic RRs. PMID- 29328306 TI - Compensation factors for 3rd order coma in three mirror anastigmatic (TMA) telescopes. AB - Misalignment induced third-order coma with respect to misaligned parameters in TMA optical systems is derived by using Nodal Aberration Theory, which yields the compensation factors that can be used to accomplish coma compensation in both coaxial and off-axis misaligned TMA telescopes. By using the compensation factors, coma free point for the tertiary mirror in TMA telescopes is derived and proved to be the negative form of the one for the secondary mirror in the Cassegrain telescope. The compensation factors can also be used to design the off axis TMAs due to their capability of eliminating the coma over the field of view. PMID- 29328307 TI - Channel estimation for wideband underwater visible light communication: a compressive sensing perspective. AB - With the rapid development of light emitting diode (LED), visible light communication (VLC) becomes an important technique for information transmission including underwater applications. However, accurate channel estimation for underwater VLC is still challenging due to the complex environment of the underwater VLC channel. In this paper, by utilizing a proper approximation, where the channel attenuation is linear with the frequency, a new compressive sensing (CS) based channel estimation approach is proposed. Utilizing the sparse property of the reflection path length for the underwater VLC channel, the CS framework is modeled to estimate the reflection path length, which can further recover the underwater VLC channel. Moreover, a Bayesian CS recovery algorithm is investigated to overcome the problem of high coherence for the sensing matrix which outperforms the conventional greedy algorithm such as orthogonal matching pursuit (OMP). Simulation results illustrate that our proposed channel estimation for underwater VLC systems has a superior performance which can significantly reduce the pilot overhead, improve the spectral efficiency, and enhance the estimation accuracy. PMID- 29328308 TI - Large enhancement of second harmonic generation from transition-metal dichalcogenide monolayer on grating near bound states in the continuum. AB - Second harmonic generation from the two-layer structure where a transition-metal dichalcogenide monolayer is put on a one-dimensional grating has been studied. This grating supports bound states in the continuum which have no leakage lying within the continuum of radiation modes, we can enhance the second harmonic generation from the transition-metal dichalcogenide monolayer by more than four orders of magnitude based on the critical field enhancement near the bound states in the continuum. In order to complete this calculation, the scattering matrix theory has been extended to include the nonlinear effect and the scattering matrix of a two-dimensional material including nonlinear terms; furthermore, two methods to observe the bound states in the continuum are considered, where one is tuning the thickness of the grating and the other is changing the incident angle of the electromagnetic wave. We have also discussed various modulation of the second harmonic generation enhancement by adjusting the azimuthal angle of the transition-metal dichalcogenide monolayer. PMID- 29328309 TI - Role of interactions in the magneto-plasmonic response at the geometrical threshold of surface continuity: publisher's note. AB - This publisher's note amends the author listing of [Opt. Express26, 32792 (2017)]. PMID- 29328310 TI - Distribution of a phase-stabilized 100.02 GHz millimeter-wave signal over a 160 km optical fiber with 4.1 * 10-17 instability. AB - We report a long-distance phase-stabilized millimeter-wave distribution over optical fibers, where the optical-link-induced phase noise is compensated with a high-precision photonic-generated millimeter-wave (mm-wave) voltage-controlled oscillator (VCO). The mm-wave VCO is realized based on pre-filtering and re modulating optical spectral lines of an optical frequency comb (OFC). By adjusting the frequency spacing of the optical spectral lines extracted from the OFC, the phase error of the transmitted optical mm-wave signal can be compensated precisely. Using the mm-wave VCO, we demonstrate a distribution of a 100.02 GHz signal over spooled optical fibers and the fractional frequency instability of the system at different transmission distances is exhibited. The residual phase noise of the remote mm-wave signal after being transferred through a 160-km fiber link is measured to be -59 dBc/Hz at 1 Hz frequency offset from the carrier, and the RMS timing jitter in the frequency range from 0.01 Hz to 1 MHz reaches 62 fs. The long-term fractional frequency instability of 4.1 * 10-17 at 10000 s averaging time is achieved, and the maximum timing drift is within 0.93 ps (peak to peak) during 4 hours. PMID- 29328311 TI - Status analysis of keyhole bottom in laser-MAG hybrid welding process. AB - The keyhole status is a determining factor of weld quality in laser-metal active gas arc (MAG) hybrid welding process. For a better evaluation of the hybrid welding process, three different penetration welding experiments: partial penetration, normal penetration (or full penetration), and excessive penetration were conducted in this work. The instantaneous visual phenomena including metallic vapor, spatters and keyhole of bottom surface were used to evaluate the keyhole status by a double high-speed camera system. The Fourier transform was applied on the bottom weld pool image for removing the image noise around the keyhole, and then the bottom weld pool image was reconstructed through the inverse Fourier transform. Lastly, the keyhole bottom was extracted from the de noised bottom weld pool image. By analyzing the visual features of the laser-MAG hybrid welding process, mechanism of the closed and opened keyhole bottom were revealed. The results show that the stable opened or closed status of keyhole bottom is directly affected by the MAG droplet transition in the normal penetration welding process, and the unstable opened or closed status of keyhole bottom would appear in excessive penetration welding and partial penetration welding. The analysis method proposed in this paper could be used to monitor the keyhole stability in laser-MAG hybrid welding process. PMID- 29328312 TI - Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids. AB - A novel temperature sensor based on a Teflon capillary encapsulated 2 * 2 optical microfiber coupler (OMC) filled with refractive index matching liquids is described. The sealed capillary and the filling liquid are demonstrated to enhance the temperature sensing performance, achieving a high temperature sensitivity of 5.3 nm/ degrees C. To the best of our knowledge, the temperature sensor described in this article exhibits the highest sensitivity among the OMC structure based fiber optic temperature sensors. Experimental results also show that it has good repeatability along with a fast response time of 243 ms. PMID- 29328313 TI - Achievable information rate enhancement of visible light communication using probabilistically shaped OFDM modulation. AB - We present the first experimental demonstration of orthogonal frequency division multiplexed (OFDM) modulation using the probabilistic shaping (PS) technique in visible light communication (VLC) systems, in order to increase the achievable information rate (AIR) according to the pre-estimated signal to noise ratio (SNR) of VLC channel. We numerically investigate the performance of PS technique and make a fair comparison with bit-loading technique under different scenarios. By using a phosphor-LED based VLC system with available bandwidth of ~45-MHz, OFDM with PS technique can experimentally realize an AIR of 204.1-Mb/s over 1-m free space transmission, leading to a 26.8% increment in comparison with OFDM using bit-loading technique at the expense of 16% overall forward error correction (FEC) overhead (OH). PMID- 29328314 TI - RF injection locked 18 GHz regeneratively mode-locked semiconductor laser. AB - In this manuscript, a semiconductor based fiber ring cavity mode-locked laser regeneratively driven at 18 GHz is presented. The optical spectrum of the laser is centered at 1578 nm. The laser is RF injection locked via an external source at 18 GHz. The phase noise of the mode-locked laser is measured and the integrated timing jitter was found to be 10.8 fs (from 100 Hz to 20 MHz) and 13.3 fs (from 100 Hz to Nyquist frequency). The integrated amplitude fluctuation (from 100 Hz to 20 MHz) was less than 0.02%. The laser phase and amplitude noise responses to various injected RF power levels were also investigated. The injection RF power has significant effect on the phase noise and the best jitter value is around 40 dB lower than the cavity regenerated RF power. PMID- 29328316 TI - Optimized phase sensing in a truncated SU(1,1) interferometer. AB - Homodyne detection is often used for interferometers based on nonlinear optical gain media. For the configuration of a seeded, "truncated SU(1,1)" interferometer Anderson, et al. [ Phys. Rev. A95, 063843 (2017)] showed how to optimize the homodyne detection scheme and demonstrated theoretically that it can saturate the quantum Cramer-Rao bound for phase estimation. In this work we extend those results by taking into account loss in the truncated SU(1,1) interferometer and determining the optimized homodyne detection scheme for phase measurement. Further, we build a truncated SU(1,1) interferometer and experimentally demonstrate that this optimized scheme achieves a reduction in noise level, corresponding to an enhanced potential phase sensitivity, compared to a typical homodyne detection scheme for a two-mode squeezed state. In doing so, we also demonstrate an improvement in the degree to which we can beat the standard quantum limit with this device. PMID- 29328315 TI - Magnetometry for precision measurement using frequency-modulation microwave combined efficient photon-collection technique on an ensemble of nitrogen-vacancy centers in diamond. AB - Sensitivity of magnetometers that use color centers is limited by poor photon collection and detection efficiency. In this paper, we present the details of a newly developed all-optical collection combined frequency-modulated microwave method. The proposed method achieves a high sensitivity in static magnetic-field detection both theoretically and experimentally. First, we demonstrate that this collection technique enables both a fluorescence collection as high as 40% and an efficient pump absorption. Subsequently, we exploit the optically detected magnetic resonance (ODMR) signal and quantitative magnetic detection of an ensemble of nitrogen vacancy (NV) centers, by applying a frequency-modulated (FM) microwave method followed by a lock-in technique on the resonance frequency point. Based on the results obtained using all-optical collection combined FM microwaves, we verified that the sensitivity of the magnetometer can achieve approximately 14 nT/?Hz at 1 Hz, using a discrete Fourier transform detection method experimentally. This method provides a compact and portable precision sensor platform for measuring magnetic fields, and is of interest for fundamental studies in spintronics. PMID- 29328317 TI - Planar polarization-routing optical cross-connects using nematic liquid crystal waveguides. AB - This paper presents the device design and performance analysis of a novel design of planar optical cross-connect (OXC) using nematic liquid crystal (NLC) waveguides. It employs N * N switching matrix in cross-bar fabric. In each unit cell, the input light is set in either the transverse electric (TE) mode or the transverse magnetic (TM) mode by electrically reorienting the NLC in the waveguide. The light then enters a passive waveguide and is routed to different paths depending on the polarization state (TE/TM mode). A sample device of 8 * 8 OXC is analyzed for performance estimation, which predicts a maximum on-chip insertion loss of 3 dB, an average cross-talk of -40 dB, ~1 ms switching time, and 2 mm * 2 mm footprint. The proposed OXC is unique in the switching mechanism of polarization-dependent routing and allows non-blocking switching with high compactness and broad bandwidth. It is potential for optical circuit switching in data centers and optical communication networks. PMID- 29328318 TI - Efficient continuous-wave and passively Q-switched pulse laser operations in a diffusion-bonded sapphire/Er:Yb:YAl3(BO3)4/sapphire composite crystal around 1.55 MUm. AB - A composite crystal consisting of a 1.5-mm-thick Er:Yb:YAl3(BO3)4 crystal between two 1.2-mm-thick sapphire crystals was fabricated by the thermal diffusion bonding technique. Compared with a lone Er:Yb:YAl3(BO3)4 crystal measured under the identical experimental conditions, higher laser performances were demonstrated in the sapphire/Er:Yb:YAl3(BO3)4/sapphire composite crystal due to the reduction of the thermal effects. End-pumped by a 976 nm laser diode in a hemispherical cavity, a 1.55 MUm continuous-wave laser with a maximum output power of 1.75 W and a slope efficiency of 36% was obtained in the composite crystal when the incident pump power was 6.54 W. Passively Q-switched by a Co2+:MgAl2O4 crystal, a 1.52 MUm pulse laser with energy of 10 MUJ and repetition frequency of 105 kHz was also realized in the composite crystal. Pulse width was 315 ns. The results show that the sapphire/Er:Yb:YAl3(BO3)4/sapphire composite crystal is an excellent active element for 1.55 MUm laser. PMID- 29328319 TI - Dynamic spatial filtering using a digital micromirror device for high-speed optical diffraction tomography. AB - Optical diffraction tomography (ODT) is an emerging microscopy technique for three-dimensional (3D) refractive index (RI) mapping of transparent specimens. Recently, the digital micromirror device (DMD) based scheme for angle-controlled plane wave illumination has been proposed to improve the imaging speed and stability of ODT. However, undesired diffraction noise always exists in the reported DMD-based illumination scheme, which leads to a limited contrast ratio of the measurement fringe and hence inaccurate RI mapping. Here we present a novel spatial filtering method, based on a second DMD, to dynamically remove the diffraction noise. The reported results illustrate significantly enhanced image quality of the obtained interferograms and the subsequently derived phase maps. And moreover, with this method, we demonstrate mapping of 3D RI distribution of polystyrene beads as well as biological cells with high accuracy. Importantly, with the proper hardware configuration, our method does not compromise the 3D imaging speed advantage promised by the DMD-based illumination scheme. Specifically, we have been able to successfully obtain interferograms at over 1 kHz speed, which is critical for potential high-throughput label-free 3D image cytometry applications. PMID- 29328320 TI - Efficient and tunable strip-to-slot fundamental mode coupling. AB - We present a novel photonic wire-to-slot waveguide coupler in SOI. The phase matching between a wire and slot mode is achieved using a mode transformer. The architecture consists of a balanced 50/50 power splitter and a tunable phase matched taper combiner forming a slot waveguide. We show a theoretical wire-to slot coupling efficiency of 99 % is achievable and experimentally, we demonstrate a coupling efficiency of 99 % in the 1550 nm band. Based on the coupling scheme, we also show excitation of a slot mode in a slotted ring resonator and verified the excitation through the thermo-optic response of the rings. We show a nearly athermal behaviour of a PMMA filled slot ring with a thermo-optic response of 12.8 pm/ degrees C compare to 43.5 pm/ degrees C for an air clad slot waveguide. PMID- 29328321 TI - Anti-waveguiding vertical-cavity surface-emitting laser at 850 nm: From concept to advances in high-speed data transmission. AB - Oxide-confined vertical cavity surface emitting lasers (VCSELs) with anti waveguiding AlAs-rich core presently attract a lot of attention. Anti-waveguiding cavity enables the maximum possible optical confinement of the VCSEL mode ("lambda/2 design"), increases its oscillator strength and reduces dramatically the optical power accumulated in the VCSEL mesa regions outside the aperture. VCSEL designs are suggested that favor single transverse mode operation. Modeling including current-induced and absorption-induced overheating shows that the preference for the transverse fundamental mode persists up to 10 mA current at 5 um aperture diameter. Error-free data transmission is realized up to 160 Gb/s in digital-multitone (DMT) format using single-mode anti-waveguiding VCSELs. The approach to single-mode anti-waveguiding VCSELs is extended over a broad spectral range realizing error-free high-speed data transmission at both 850 nm and 910 nm. PMID- 29328322 TI - Anti-dispersion phase-tunable microwave mixer based on a dual-drive dual-parallel Mach-Zehnder modulator. AB - An optically-controlled phase-tunable microwave mixer based on a dual-drive dual parallel Mach-Zehnder modulator (DDDP-MZM) is proposed, which supports wideband phase shift and immunity to power fading caused by chromatic dispersion. By using carrier-suppressed single side-band (CS-SSB) modulation for the local oscillator (LO) signal and carrier-suppressed double side-band (CS-DSB) modulation for the input signal, no vector superposition for the same output microwave frequency occurs, making the system immune from power fading caused by chromatic dispersion. Phase tuning is achieved by shifting the phase of the LO signal, and direct electrical tuning of the wideband microwave input signal is avoided, thus supporting large working bandwidth. A phase-shifted down-conversion experiment is carried out, where a phase shift with 0 ~390 degrees and down-conversion are achieved with a phase variation of less than 5 degrees and power variation less than 3.5 dBm when the input signal sweeps between 12 ~16 GHz. The mixer is simple and power-efficient since it uses a single compact modulator, and does not require any optical filters. No power notches are observed in the output microwave spectrum, proving that the dispersion-related frequency-selective fading is mitigated. PMID- 29328323 TI - Long-range distributed optical fiber hot-wire anemometer based on chirped-pulse PhiOTDR. AB - We demonstrate a technique allowing to develop a fully distributed optical fiber hot-wire anemometer capable of reaching a wind speed uncertainty of ~ +/-0.15m/s (+/-0.54km/h) at only 60 mW/m of dissipated power in the sensing fiber, and within only four minutes of measurement time. This corresponds to similar uncertainty values than previous papers on distributed optical fiber anemometry but requires two orders of magnitude smaller dissipated power and covers at least one order of magnitude longer distance. This breakthrough is possible thanks to the extreme temperature sensitivity and single-shot performance of chirped-pulse phase-sensitive optical time domain reflectometry (PhiOTDR), together with the availability of metal-coated fibers. To achieve these results, a modulated current is fed through the metal coating of the fiber, causing a modulated temperature variation of the fiber core due to Joule effect. The amplitude of this temperature modulation is strongly dependent on the wind speed at which the fiber is subject. Continuous monitoring of the temperature modulation along the fiber allows to determine the wind speed with singular low power injection requirements. Moreover, this procedure makes the system immune to temperature drifts of the fiber, potentially allowing for a simple field deployment. Being a much less power-hungry scheme, this method also allows for monitoring over much longer distances, in the orders of 10s of km. We expect that this system can have application in dynamic line rating and lateral wind monitoring in railway catenary wires. PMID- 29328324 TI - Temperature-insensitive optical fiber strain sensor with ultra-low detection limit based on capillary-taper temperature compensation structure. AB - An optical fiber strain sensor based on capillary-taper compensation structure was proposed. The theoretical simulation by using the finite element analysis method shows a matching condition between the capillary length and the interference-cavity length to achieve the zero temperature crosstalk. Meanwhile, the strain sensitivity can also be improved greatly at the matching condition. We then set up an insertion controller system with high accuracy to make sure the interference-cavity length can match the capillary length. Finally the fiber strain sensor with both ultra-low temperature-crosstalk (0.05 pm/ degrees C) and ultra-high sensitivity (214.35 pm/MUepsilon) was achieved, and the experimental results agreed well with the calculated results. The "ladder-mode" and repeatability experiments showed that the proposed sensor was actually with the ultra-low detection limit of 0.047 uE. PMID- 29328325 TI - Comparing laser induced plasmas formed in diode and excimer pumped alkali lasers. AB - Lasing on the D1 transition (62P1/2 -> 62S1/2) of cesium can be reached in both diode and excimer pumped alkali lasers. The first uses D2 transition (62S1/2 -> 62P3/2) for pumping, whereas the second is pumped by photoexcitation of ground state Cs-Ar collisional pairs and subsequent dissociation of diatomic, electronically-excited CsAr molecules (excimers). Despite lasing on the same D1 transition, differences in pumping schemes enables chemical pathways and characteristic timescales unique for each system. We investigate unavoidable plasma formation during operation of both systems side by side in Ar/C2H6/Cs. PMID- 29328326 TI - Quadrupole mode plasmon resonance enabled subwavelength metal-dielectric grating optical reflection filters. AB - A metal-dielectric subwavelength grating structure was investigated for making single-peak narrow linewidth optical reflection filters in the near-infrared region. The subwavelength grating filter structure consists of a one-dimensional periodic array of metal (gold) and dielectric (Al2O3) elements on a dielectric substrate. Optimized reflection filters have a single reflection peak with ~10 nm linewidth in the infrared region over a wide spectral band. Finite-difference time-domain (FDTD) simulations and multipole analysis show that the narrow linewidth reflection is due to the coupling of the Rayleigh anomaly wave to the quadrupole plasmon resonance mode of the subwavelength metal-dielectric grating. Additionally, it was found that the contrast of the indices of refraction of two dielectric materials in the subwavelength structure is critical for realizing optical filter effect. PMID- 29328327 TI - Realizable design of field taper via coordinate transformation. AB - Complex electromagnetic structures can be designed by exploiting the concept of spatial coordinate transformations. In this paper, we define a coordinate transformation scheme that enables one to taper the electric field between two waveguides of different cross-sections. The electromagnetic field launched from the wide input waveguide is compressed in the proposed field tapering device and guided into the narrow output waveguide. In closed rectangular waveguide configurations, the taper can further play the role of a mode selector due to the output waveguide's cut-off frequency. Realizable permittivity and permeability values that can be achieved with common existing metamaterials are determined from the transformation equations and simplified by a proposed parameter reduction method. Both a 2D continuous design model and a potential 3D discretized realization model are presented at microwave frequencies and the performances of the tapering devices are verified by full-wave finite element numerical simulations. Finally, near-field distributions are shown to demonstrate the field tapering functionality. PMID- 29328328 TI - Broadband integrated polarization rotator using three-layer metallic grating structures. AB - In this work, we demonstrate broadband integrated polarization rotator (IPR) with a series of three-layer rotating metallic grating structures. This transmissive optical IPR can conveniently rotate the polarization of linearly polarized light to any desired directions at different spatial locations with high conversion efficiency, which is nearly constant for different rotation angles. The linear polarization rotation originates from multi-wave interference in the three-layer grating structure. We anticipate that this type of IPR will find wide applications in analytical chemistry, biology, communication technology, imaging, etc. PMID- 29328329 TI - Speeding up Raman spectral imaging by the three-dimensional low rank estimation method. AB - Raman spectral imaging has been widely used as a very important analytical tool in various fields. For obtaining the high spectral signal-to-noise ratio Raman images, the long integration time is necessary, which is placing a limit on the application of Raman spectral imaging. We introduce a simple and feasible numerical method of the Three-dimensional Low Rank Estimation (3D-LRE), which can speed up the data acquisition process of the Raman spectral imaging. The spectral signal-to-noise ratio of the Raman images can be increased by over 75 times and the speed of the data acquisition can be improved by over 30 times. By combining with line-scan or multifocus-scan techniques, the Raman images can be obtained in a few seconds. PMID- 29328330 TI - Evaluation of thermal expansion coefficient of carbon fiber reinforced composites using electronic speckle interferometry. AB - An optical system for measuring the coefficient of thermal expansion (CTE) of materials has been developed based on electronic speckle interferometry. In this system, the temperature can be varied from -60 degrees C to 180 degrees C with a Peltier device. A specific specimen geometry and an optical arrangement based on the Michelson interferometer are proposed to measure the deformation along two orthogonal axes due to temperature changes. The advantages of the system include its high sensitivity and stability over the whole range of measurement. The experimental setup and approach for estimating the CTE was validated using an Aluminum alloy. Following this validation, the system was applied for characterizing the CTE of carbon fiber reinforced composite (CFRP) laminates. For the unidirectional fiber reinforced composites, the CTE varied with fiber orientation and exhibits anisotropic behavior. By stacking the plies with specific angles and order, the CTE of a specific CFRP was constrained to a low level with minimum variation temperature. The optical system developed in this study can be applied to CTE measurement for engineering and natural materials with high accuracy. PMID- 29328331 TI - Directional torsion and temperature discrimination based on a multicore fiber with a helical structure. AB - We propose and experimentally demonstrate a directional torsion sensor based on a Mach-Zehnder interferometer formed in a multicore fiber (MCF) with a ~570-MUm long helical structure (HS). The HS was fabricated into the MCF by simply pre twisting and then heating with a CO2 laser splicing system. This device shows the capability of directional torsion measurement from -17.094 rad/m to 15.669 rad/m with the sensitivity of ~0.118 nm/(rad/m). Moreover, since the multiple interferences respond differently to torsion and temperature simultaneously, the temperature cross-sensitivity of the proposed sensor can be eliminated effectively. Besides, the sensor owns other merits such as easy fabrication and good mechanical robustness. PMID- 29328332 TI - Wavelength tuning of surface plasmon coupled quantum well infrared photodetectors. AB - A novel method of detection wavelength tuning for surface plasmon coupled quantum well infrared photodetectors (QWIPs) was demonstrated. By changing of the thickness of the top contact layer, the detection wavelength can be adjusted. The displacement of the detection wavelength is related to the effective dielectric constant of the dielectric layers in the device structure. The peak wavelength moves toward longer wavelength as the contact layer thickness decreases. With a proper match of the 2D metal hole array and the QW absorption region, the responsivity can be kept within a reasonable range for samples with different top contact layer thicknesses. PMID- 29328333 TI - Broadband tunable filter based on the loop of multimode Bragg grating. AB - A broadband tunable silicon filter has been demonstrated on silicon-on-insulator platform. The device is based on the loop of multimode anti-symmetric waveguide Bragg grating. A wide bandwidth tunability about 1.455 THz (0.117-1.572 THz) is achieved. The device, functions like a ring, can realize the bandwidth tunable of the drop port and the through port. And, its feature has simultaneous wavelength tuning and no free space ranges limitation. A high out-of-band contrast of 30 dB is achieved with a bandwidth of 1.572 THz (Deltalambda = 13 nm). The out-of-band contrast is 18 dB at the minimum bandwidth 0.117 THz (Deltalambda = 1.0 nm). PMID- 29328334 TI - Computation and analysis of backward ray-tracing in aero-optics flow fields. AB - A backward ray-tracing method is proposed for aero-optics simulation. Different from forward tracing, the backward tracing direction is from the internal sensor to the distant target. Along this direction, the tracing in turn goes through the internal gas region, the aero-optics flow field, and the freestream. The coordinate value, the density, and the refractive index are calculated at each tracing step. A stopping criterion is developed to ensure the tracing stops at the outer edge of the aero-optics flow field. As a demonstration, the analysis is carried out for a typical blunt nosed vehicle. The backward tracing method and stopping criterion greatly simplify the ray-tracing computations in the aero optics flow field, and they can be extended to our active laser illumination aero optics study because of the reciprocity principle. PMID- 29328335 TI - Optical frequency combs based on a period-doubling mode-locked Er-doped fiber laser. AB - The phase-locking mechanism and results of a frequency comb based on a period doubling mode-locked (PD-ML) fiber laser were investigated. A mode-locked fiber laser was designed to switch from fundamental mode locking (FML) to PD-ML with similar output pulses by simply changing the pump. Experimental results show that the new comb teeth generated in the PD-ML are strongly correlated with the original teeth and have a consistent carrier-envelope offset (CEO) frequency. Controlling the pump and cavity length is also suited for phase-locking the PD-ML laser. With the same f-to-2f heterodyne beat system and locking circuit, phase locking of both PD-ML and FML-based optical combs with two repetition rates, and switching between them, were obtained by changing the pump only. PMID- 29328336 TI - Quantitative phase microscopy for cellular dynamics based on transport of intensity equation. AB - We demonstrate a simple method for quantitative phase imaging of tiny transparent objects such as living cells based on the transport of intensity equation. The experiments are performed using an inverted bright field microscope upgraded with a flipping imaging module, which enables to simultaneously create two laterally separated images with unequal defocus distances. This add-on module does not include any lenses or gratings and is cost-effective and easy-to-alignment. The validity of this method is confirmed by the measurement of microlens array and human osteoblastic cells in culture, indicating its potential in the applications of dynamically measuring living cells and other transparent specimens in a quantitative, non-invasive and label-free manner. PMID- 29328337 TI - Development and validation of a simulation method, PeCHREM, for evaluating spatio temporal concentration changes of paddy herbicides in rivers. AB - In pesticide risk management in Japan, predicted environmental concentrations are estimated by a tiered approach, and the Ministry of the Environment also performs field surveys to confirm the maximum concentrations of pesticides with risk concerns. To contribute to more efficient and effective field surveys, we developed the Pesticide Chemicals High Resolution Estimation Method (PeCHREM) for estimating spatially and temporally variable emissions of various paddy herbicides from paddy fields to the environment. We used PeCHREM and the G-CIEMS multimedia environmental fate model to predict day-to-day environmental concentration changes of 25 herbicides throughout Japan. To validate the PeCHREM/G-CIEMS model, we also conducted a field survey, in which river waters were sampled at least once every two weeks at seven sites in six prefectures from April to July 2009. In 20 of 139 sampling site-herbicide combinations in which herbicides were detected in at least three samples, all observed concentrations differed from the corresponding prediction by less than one order of magnitude. We also compared peak concentrations and the dates on which the concentrations reached peak values (peak dates) between predictions and observations. The peak concentration differences between predictions and observations were less than one order of magnitude in 66% of the 166 sampling site-herbicide combinations in which herbicide was detected in river water. The observed and predicted peak dates differed by less than two weeks in 79% of these 166 combinations. These results confirm that the PeCHREM/G-CIEMS model can improve the efficiency and effectiveness of surveys by predicting the peak concentrations and peak dates of various herbicides. PMID- 29328338 TI - Binding affinity prediction of nanobody-protein complexes by scoring of molecular dynamics trajectories. AB - Nanobodies offer a viable alternative to antibodies for engineering high affinity binders. Their small size has an additional advantage: it allows exploiting computational protocols for optimizing their biophysical features, such as the binding affinity. The efficient prediction of this quantity is still considered a daunting task especially for modelled complexes. We show how molecular dynamics can successfully assist in the binding affinity prediction of modelled nanobody protein complexes. The approximate initial configurations obtained by in silico design must undergo large rearrangements before achieving a stable conformation, in which the binding affinity can be meaningfully estimated. The scoring functions developed for the affinity evaluation of crystal structures will provide accurate estimates for modelled binding complexes if the scores are averaged over long finite temperature molecular dynamics simulations. PMID- 29328339 TI - Reduced sintering of mass-selected Au clusters on SiO2 by alloying with Ti: an aberration-corrected STEM and computational study. AB - Au nanoparticles represent the most remarkable example of a size effect in heterogeneous catalysis. However, a major issue hindering the use of Au nanoparticles in technological applications is their rapid sintering. We explore the potential of stabilizing Au nanoclusters on SiO2 by alloying them with a reactive metal, Ti. Mass-selected Au/Ti clusters (400 000 amu) and Au2057 clusters (405 229 amu) were produced with a magnetron sputtering, gas condensation cluster beam source in conjunction with a lateral time-of-flight mass filter, deposited onto a silica support and characterised by XPS and LEIS. The sintering dynamics of mass-selected Au and Au/Ti alloy nanoclusters were investigated in real space and real time with atomic resolution aberration corrected HAADF-STEM imaging, supported by model DFT calculations. A strong anchoring effect was revealed in the case of the Au/Ti clusters, because of a much increased local interaction with the support (by a factor 5 in the simulations), which strongly inhibits sintering, especially when the clusters are more than ~0.60 nm apart. Heating the clusters at 100 degrees C for 1 h in a mixture of O2 and CO, to simulate CO oxidation conditions, led to some segregation in the Au/Ti clusters, but in line with the model computational investigation, Au atoms were still present on the surface. Thus size-selected, deposited nanoalloy Au/Ti clusters appear to be promising candidates for sustainable gold-based nanocatalysis. PMID- 29328340 TI - Interactions between brush-grafted nanoparticles within chemically identical homopolymers: the effect of brush polydispersity. AB - We systematically examined the polymer-mediated interparticle interactions between polymer-grafted nanoparticles (NPs) within chemically identical homopolymer matrices through experimental and computational efforts. In experiments, we prepared thermally stable gold NPs grafted with polystyrene (PS) or poly(methyl methacrylate) (PMMA), and they were mixed with corresponding homopolymers. The nanocomposites are well dispersed when the molecular weight ratio of free to grafted polymers, alpha, is small. For alpha above 10, NPs are partially aggregated or clumped within the polymer matrix. Such aggregation of NPs at large alpha has been understood as an autophobic dewetting behavior of free homopolymers on brushes. In order to theoretically investigate this phenomenon, we calculated two particle interaction using self-consistent field theory (SCFT) with our newly developed numerical scheme, adopting two-dimensional finite volume method (FVM) and multi-coordinate-system (MCS) scheme which makes use of the reflection symmetry between the two NPs. By calculating the polymer density profile and interparticle potential, we identified the effects of several parameters such as brush thickness, particle radius, alpha, brush chain polydispersity, and chain end mobility. It was found that increasing alpha is the most efficient method for promoting autophobic dewetting phenomenon, and the attraction keeps increasing up to alpha = 20. At small alpha values, high polydispersity in brush may completely nullify the autophobic dewetting, while at intermediate alpha values, its effect is still significant in that the interparticle attractions are heavily reduced. Our calculation also revealed that the grafting type is not a significant factor affecting the NP aggregation behavior. The simulation result qualitatively agrees with the dispersion/aggregation transition of NPs found in our experiments. PMID- 29328344 TI - Kinetics of thermal cis-trans isomerization in a phototropic azobenzene-based single-component liquid crystal in its nematic and isotropic phases. AB - Single-component azobenzene-based phototropic liquid crystals (PtLC) are promising materials that have started to be explored for photonic applications. One of the essential factors determining the applicability of these materials is the rate of the thermally driven cis-trans isomerization. In this paper, the kinetics of the thermal back cis-to-trans reaction in a pure 4-hexyl-4' methoxyazobenzene (6-AB-O1) compound in its isotropic liquid and nematic phases is studied (the undoped LC). The reaction rate constants, activation energies and thermal activation parameters were determined based on spectroscopic studies. The reaction kinetics is compared to that measured for the compound dissolved in chloroform. The results demonstrate that the thermal back reaction depends on the phase and molecular environment of the cis-isomer. Moreover, the effect of temperature on the absorption spectra of 6-AB-O1 in its isotropic, nematic and crystalline phases is examined. The changes in the compound's absorption spectra in the respective phases have been correlated to the positional order parameter S. PMID- 29328343 TI - In situ fluorescence activation of DNA-silver nanoclusters as a label-free and general strategy for cell nucleus imaging. AB - A facile, general and turn-on nucleus imaging strategy was first developed based on in situ fluorescence activation of C-rich dark silver nanoclusters by G-rich telomeres. After a simple incubation without washing, nanoclusters could selectively stain the nucleus with intense red luminescence, which was confirmed using fixed/living cells and several cell lines. PMID- 29328345 TI - Oxidative radical divergent Si-incorporation: facile access to Si-containing heterocycles. AB - A copper-catalyzed oxidative radical strategy to avoid the use of the highly expensive noble metal/ligand catalytic systems is described, which allows selective activation of dual chemical bonds around the Si-atom center relying on the nature of alkylsilanes. While for tertiary silanes selective functionalization of Si-H/silyl C(sp3)-H bonds in intermolecular oxidative annulation cascades with N-(2-(ethynyl)aryl)acrylamides toward silino[3,4 c]quinolin-5(3H)-ones, when using secondary silanes and HSi(TMS)3, dual Si-H bonds or Si-H/Si-Si bonds are selectively cleaved leading to 4H-silolo[3,4 c]quinolin-4-ones. PMID- 29328346 TI - 1,4-Additions of tricyclic 1,4-diphosphinines - a novel system to study sigma bond activation and pi-pi dispersion interactions. AB - The dienic nature of the aromatic pi-system in 1,4-diphosphinines remains largely unexplored to this day due to a lack of facile and efficient synthetic protocols. Recently reported stable, tricyclic 1,4-diphosphinines were used to explore the thermal reactivity of the pi-system towards an array of dienophiles in [4pi+2pi]- and, for the first time, in [4pi+2sigma]-type cycloaddition reactions. PMID- 29328347 TI - As tall as my peers - similarity in body height between migrants and hosts. AB - ABSTRACT: Background: We define migrants as people who move from their place of birth to a new place of residence. Migration usually is directed by "Push-Pull" factors, for example to escape from poor living conditions or to find more prosperous socio-economic conditions. Migrant children tend to assimilate quickly, and soon perceive themselves as peers within their new social networks. Differences exist between growth of first generation and second generation migrants. Methods: We review body heights and height distributions of historic and modern migrant populations to test two hypotheses: 1) that migrant and adopted children coming from lower social status localities to higher status localities adjust their height growth toward the mean of the dominant recipient social network, and 2) social dominant colonial and military migrants display growth that significantly surpasses the median height of both the conquered population and the population of origin. Our analytical framework also considered social networks. Recent publications indicate that spatial connectedness (community effects) and social competitiveness can affect human growth. Results: Migrant children and adolescents of lower social status rapidly adjust in height towards average height of their hosts, but tend to mature earlier, and are prone to overweight. The mean height of colonial/military migrants does surpass that of the conquered and origin population. Conclusion: Observations on human social networks, non-human animal strategic growth adjustments, and competitive growth processes strengthen the concept of social connectedness being involved in the regulation of human migrant growth. PMID- 29328348 TI - Body image issues in Lithuanian females before and during pregnancy. AB - ABSTRACT: There is a risk that during pregnancy a woman's changing physique might result in stronger concerns about her appearance and may lead to negative consequences both for mother and foetus. The aim of the present study was to assess women's self-esteem, body image and weight control before and during pregnancy. A cross-sectional study was carried out at the Centre of Obstetrics and Gynaecology of Vilnius University Hospital. In total, 234 pregnant women were investigated. The Self-esteem was measured by Rosenberg's scale (1965), while the attitude towards the body size - by Stunkard's figure rating scale (1983). When rating their actual body size and the preferred body shape using Stunkard's figures, the investigated females chose, on average, 3.40 and 2.93 (respectively) size figures for the period before pregnancy (p < 0.05), while they picked 4.38 and 3.44 (respectively) figures during pregnancy (p < 0.05). Women's efforts not to gain weight during pregnancy were not determined by their opinion of their body size during pregnancy (rs(232) = 0.136,p > 0.05). Regardless of their body shape assessment during pregnancy, pregnant women did not restrict their diet (rs(232) = 0.064,p > 0.05). Conclusions: during pregnancy women assessed their weight gain adequately, pregnant women chose larger body sizes as an ideal physique if compared to the ones of the period before pregnancy, women's efforts not to gain weight during pregnancy were not determined by their body size perception during pregnancy, pregnant women, despite their body shape assessment during pregnancy, did not restrict their diet, i.e. pregnant women became psychologically adapted to their body changes during pregnancy, and the maternity became a much more important factor than the beauty ideals associated with slender figures. PMID- 29328349 TI - Sexual dimorphism in physical education students of equal body height. AB - ABSTRACT: The aim: This paper's aim is to assess the level of development and size of particular body parts and dimorphic differences with regard to body height. Methods: The research was carried out over the period of 1995-2010 on a 1,969-strong cohort of first-year students of physical education, aged 19-21. The following somatic features were measured: body height and weight, breadth of distal femoral epiphysis, breadth of distal brachial epiphysis, four skinfolds, arm circumference, and calf circumference. Using the results, the shares of endomorphy, mesomorphy, and ectomorphy were calculated as well as the mean values of particular features and their supplemental values and regression equations. Results: With regard to height, the women students exhibit higher share of endomorphy than do the men students who, in turn, are characterised by a higher share of mesomorphy, the differences being statistically significant. The women also exhibit a higher share of ectomorphy, with differences statistically significant. The regression equation shows that the share of endomorphy decreases with height in the case of both sexes. Conclusions: The men students' body build is dominated by mesomorphy and endomorphy, while the women students' - by endomorphy. Sexual dimorphism is best seen in the mesomorphic build. PMID- 29328352 TI - New Drugs & Indications for 2017: The Year in Review. PMID- 29328350 TI - Helicobacter pylori DNA obtained from the stomach specimens of two 17th century Korean mummies. AB - ABSTRACT: Helicobacter pylori is a bacterium that grows in the stomach mucosal epithelium, and can induce gastric diseases. Although many studies on modern H. pylori genomes have been reported from all over the world, a comprehensive picture of H. pylori is still lacking. Therefore, there is a pressing need to obtain archaeological specimens and to subject the ancient DNA (aDNA) extracted therefrom to analysis. Considering the typically excellent state of preservation of Joseon mummies discovered in Korea, we thus tried to isolate ancient H. pylori DNA from their mummified stomach specimens. After screening Korean mummy stomachs containing remnant H. pylori DNA, vacA (s- and m-region) alleles were successfully identified in the stomach isolates of two samples. The H. pylori strains identified had vacA s1/m2 (Cheongdo mummy) and s1 (Dangjin mummy) alleles. This paper is significant in that it is the first report of presumptive ancient H. pylori DNA obtained from East Asian archaeological specimens. However, full characterization and exploitation of ancient H. pylori DNA remnant in Joseon mummy specimens will require subsequent investigations utilizing the most cutting edge techniques established for the analysis of ancient intestinal-content samples, such as next-generation sequencing (NGS). PMID- 29328351 TI - Mindful Self-Compassion: How it Can Enhance Resilience. PMID- 29328353 TI - 2017 Reviewers. PMID- 29328354 TI - End-of-Life Conversations as a Legacy. AB - Advance directives such as living wills and health care powers of attorney are important documents that offer patients ways to avoid unwanted care when they are unable to express their wishes. Although health care professionals have increased focus on advance care planning in recent years, approximately two thirds of American adults do not have advance medical directives. In addition, 90% of individuals believe that talking to loved ones about end-of-life wishes is important, but only 27% have done so. It is important for nurses to understand the complex factors that influence how individuals make health care decisions and identify ways to encourage conversations with family, friends, and health care providers to help clarify patients' wishes for endof-life care. [Journal of Psychosocial Nursing and Mental Health Services, 56(1), 32-35.]. PMID- 29328355 TI - Untitled by Veronica Benning. PMID- 29328356 TI - Factor Structure of the Eating Disorder Examination-Questionnaire in a Clinical Sample of Adult Women With Anorexia Nervosa. AB - An exploratory factor analysis on the Eating Disorder Examination-Questionnaire (EDE-Q) is presented for a clinical sample of women with anorexia nervosa. THE EDE-Q was completed by 169 participants after admission to an inpatient unit for eating disorders. Results of the current study did not support the four-factor model presented by the EDE-Q. A new four-factor solution was obtained with two factors showing similarity to the Restraint and Eating Concern subscales of the original model. The Shape and Weight Concern items primarily loaded together on one factor, along with preoccupation with food and fear of losing control over eating, two Eating Concern items. Finally, an appearance factor was obtained that supports the results of prior research. [Journal of Psychosocial Nursing and Mental Health Services, 56(5), 33-39.]. PMID- 29328357 TI - Sensitizing Inpatient Mental Health Staff to the Challenges of Aging. AB - Although the aging inpatient population in state psychiatric hospitals is growing significantly, there are few examples of available training to improve staff knowledge and practice. The current article describes a 10-week training series developed through a university and psychiatric hospital collaboration. Training was attended by 135 direct care nursing and rehabilitation staff and focused on improving aging awareness, problem solving, using person-centered therapeutic techniques, and engaging older adults. Staff reported improvements in therapeutic techniques, knowledge, concrete strategies for providing care, and stress management skills. Specialized training to improve understanding of aging processes and communication with older adults may also improve inpatient staff knowledge and skills. As the aging inpatient population in state psychiatric hospitals continues to grow, future work should develop manualized training initiatives to address communication needs of older adults and intervention strategies that can be used by mental health nursing staff when working with this population. [Journal of Psychosocial Nursing and Mental Health Services, 56(4), 12-16.]. PMID- 29328358 TI - Team Development Measure in Interprofessional Graduate Education: A Pilot Study. AB - A faculty team developed the 4-week Recovery-Based Interprofessional Distance Education (RIDE) rotation for graduate students in their disciplines. The evaluation team identified the Team Development Measure (TDM) as a potential alternative to reflect team development during the RIDE rotation. The TDM, completed anonymously online, was piloted on the second student cohort (N = 18) to complete the RIDE rotation. The overall pretest mean was 60.73 points (SD = 11.85) of a possible 100 points, indicating that students anticipated their RIDE team would function at a moderately high level during the 4-week rotation. The overall posttest mean, indicating student perceptions of actual team functioning, was 72.71 points (SD = 23.31), an average increase of 11.98 points. Although not statistically significant, Cohen's effect size (d = 0.43) indicates an observed difference of large magnitude. No other published work has used the TDM as a pre /posttest measure of team development. The authors believe the TDM has several advantages as a measure of student response to interprofessional education offerings, particularly in graduate students with prior experience on health care teams. Further work is needed to validate and extend the findings of this pilot study. [Journal of Psychosocial Nursing and Mental Health Services, 56(4), 18 22.]. PMID- 29328359 TI - Destigmatizing Mental Illness: An Innovative Evidence-Based Undergraduate Curriculum. AB - Stigma toward individuals with mental illness is prevalent, not only in society but also among nurses caring for this population. Such stigma contributes to health disparities, discrimination, and a lack of providers working with those who experience mental illness. An evidence-based anti-stigma curriculum innovation in a mental health nursing course in an undergraduate program is described. The curriculum change, undertaken over 2 years, included two elements: (a) contact-based education, and (b) reflective activities. For the contact-based education element, volunteers with varying mental illnesses modeling a recovery focus spoke with students and reinforced the content of that day's lecture. For the reflective element, students engaged in reflective activities regarding stigma, personal biases, and changed perceptions at three points: before, during, and after the contact-based education series. Implications related to nursing and nursing education are presented. [Journal of Psychosocial Nursing and Mental Health Services, 56(5), 50-55.]. PMID- 29328360 TI - Metabolic Side Effects in Patients Using Atypical Antipsychotic Medications During Hospitalization. AB - The current research evaluated metabolic side effects in inpatients (N = 271) using atypical antipsychotic medications in a psychiatric hospital in Turkey between June and December 2016. Data were collected via an information form created after reviewing the literature at the time of patients' hospitalization and discharge. According to the analysis, 73.8% of patients stated they experienced side effects from antipsychotic medications and 20.7% of patients experienced weight gain. A statistical difference was detected among body mass index, waist circumference, diastolic blood pressure, and heart rate during patient hospitalization and discharge. Patients using atypical anti-psychotic medications gained weight, had increased cardiovascular risk, and experienced adverse effects on their physical health during hospitalization. Mental health nurses should inform patients of medication effects and possible side effects, monitor side effects, and teach patients how to manage metabolic side effects. [Journal of Psychosocial Nursing and Mental Health Services, 56(4), 28-37.]. PMID- 29328361 TI - Logistic regression analysis for the identification of the metastasis-associated signaling pathways of osteosarcoma. AB - Osteosarcoma (OS) is the most common histological type of primary bone cancer. The present study was designed to identify the key genes and signaling pathways involved in the metastasis of OS. Microarray data of GSE39055 were downloaded from the Gene Expression Omnibus database, which included 19 OS biopsy specimens before metastasis (control group) and 18 OS biopsy specimens after metastasis (case group). After the differentially expressed genes (DEGs) were identified using the Linear Models for Microarray Analysis package, hierarchical clustering analysis and unsupervised clustering analysis were performed separately, using orange software and the self-organization map method. Based upon the Database for Annotation, Visualization and Integrated Discovery tool and Cytoscape software, enrichment analysis and protein-protein interaction (PPI) network analysis were conducted, respectively. After function deviation scores were calculated for the significantly enriched terms, hierarchical clustering analysis was performed using Cluster 3.0 software. Furthermore, logistic regression analysis was used to identify the terms that were significantly different. Those terms that were significantly different were validated using other independent datasets. There were 840 DEGs in the case group. There were various interactions in the PPI network [including intercellular adhesion molecule-1 (ICAM1), transforming growth factor beta1 (TGFB1), TGFB1-platelet-derived growth factor subunit B (PDGFB) and PDGFB-platelet-derived growth factor receptor-beta (PDGFRB)]. Regulation of cell migration, nucleotide excision repair, the Wnt signaling pathway and cell migration were identified as the terms that were significantly different. ICAM1, PDGFB, PDGFRB and TGFB1 were identified to be enriched in cell migration and regulation of cell migration. Nucleotide excision repair and the Wnt signaling pathway were the metastasis-associated pathways of OS. In addition, ICAM1, PDGFB, PDGFRB and TGFB1, which were involved in cell migration and regulation of cell migration may affect the metastasis of OS. PMID- 29328362 TI - MicroRNA-493-5p promotes apoptosis and suppresses proliferation and invasion in liver cancer cells by targeting VAMP2. AB - The aim of the present study was to explore the role of miR-493-5p in liver cancer tissues and cell lines, and its effect on cell behavioral characteristics. The expression of miR-493-5p was detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) in liver cancer tissues and cell lines (hepatic cell line HL-7702 and the liver cancer cell lines HCCC-9810, HuH-7 and HepG2). In addition, the mechanism by which miR-493-5p mediates its effects was analyzed via the transfection of miR-493-5p mimic and negative control miRNA into HepG2 cells. The viability, proliferation, apoptosis and invasion of the cells were analyzed using MTT assay, flow cytometry and Transwell chamber experiments. Furthermore, the effect of miR-493-5p on the expression of vesicle associated membrane protein 2 (VAMP2) was assayed using a dual-luciferase reporter system, and VAMP2 protein levels were determined by western blot analysis. In addition, following the cotransfection of HepG2 cells with pcDNA3.1-VAMP2 plasmid and miR 493-5p mimic, the role of miR-493-5p as a regulator of VAMP2 was evaluated using MTT assay, flow cytometry and Transwell chamber experiments. RT-qPCR analysis indicated that the expression of miR-493-5p in liver cancer tissues and cell lines was decreased significantly compared with that in adjacent normal liver tissues and normal liver cell lines, respectively. Compared with the control group, the cells transfected with miR-493-5p mimic (the miR-493-5p overexpression group) exhibited reduced cell viability, a reduced percentage of cells in the S phase and an increased percentage of apoptotic cells. In addition, fewer cells passed through the Transwell membrane in the miR-493-5p overexpression group compared with the control group. In the dual-luciferase reporter assay, luciferase activity in the miR-493-5p overexpression group was attenuated compared with that in the control group. In addition, western blot analysis indicated that the VAMP2 protein levels in the miR-493-5p overexpression group were lower than those in the control group. Furthermore, in cells overexpressing miR-493-5p and VAMP2 simultaneously, the biological behavior of the cells, including cell viability, cell cycle and cell invasiveness, was significantly rescued compared with that of the control group transfected with miR-493-5p alone. In conclusion, miR-493-5p is indicated to be a tumor suppressor gene, and is downregulated in human liver cancer. miR-493-5p overexpression promotes cell apoptosis and inhibits the proliferation and migration of liver cancer cells by negatively regulating the expression of VAMP. These observations suggest the potential of treating liver cancer by the overexpression of microRNA-493-5p. PMID- 29328363 TI - Support vector machine classifier for prediction of the metastasis of colorectal cancer. AB - Colorectal cancer (CRC) is one of the most common cancers and a major cause of mortality. The present study aimed to identify potential biomarkers for CRC metastasis and uncover the mechanisms underlying the etiology of the disease. The five datasets GSE68468, GSE62321, GSE22834, GSE14297 and GSE6988 were utilized in the study, all of which contained metastatic and non-metastatic CRC samples. Among them, three datasets were integrated via meta-analysis to identify the differentially expressed genes (DEGs) between the two types of samples. A protein protein interaction (PPI) network was constructed for these DEGs. Candidate genes were then selected by the support vector machine (SVM) classifier based on the betweenness centrality (BC) algorithm. A CRC dataset from The Cancer Genome Atlas database was used to evaluate the accuracy of the SVM classifier. Pathway enrichment analysis was carried out for the SVM-classified gene signatures. In total, 358 DEGs were identified by meta-analysis. The top ten nodes in the PPI network with the highest BC values were selected, including cAMP responsive element binding protein 1 (CREB1), cullin 7 (CUL7) and signal sequence receptor 3 (SSR3). The optimal SVM classification model was established, which was able to precisely distinguish between the metastatic and non-metastatic samples. Based on this SVM classifier, 40 signature genes were identified, which were mainly enriched in protein processing in endoplasmic reticulum (e.g., SSR3), AMPK signaling pathway (e.g., CREB1) and ubiquitin mediated proteolysis (e.g., FBXO2, CUL7 and UBE2D3) pathways. In conclusion, the SVM-classified genes, including CREB1, CUL7 and SSR3, precisely distinguished the metastatic CRC samples from the non-metastatic ones. These genes have the potential to be used as biomarkers for the prognosis of metastatic CRC. PMID- 29328366 TI - Expression of DNA damage response proteins in gastric cancer: Comprehensive protein profiling and histological analysis. AB - Gastric cancer is the third major cause of cancer-related mortality in Japan. The aim of this study was to identify a factor implicated in the biology of gastric cancer by comprehensive protein profiling. Protein profiling was carried out by liquid chromatography-tandem mass spectrometry, using formalin-fixed paraffin embedded specimens of 17 gastric cancer cases. Pathway analysis and orthogonal partial least square-discriminant analysis suggested the significant expression of ribonucleoproteins, heterogeneous nuclear ribonucleoproteins, interleukin binding factor 2 (ILF2), KU70 and KU80, which are involved in DNA damage response (DDR). Thus, the expression and phosphorylation levels of KU70, ILF2, CHK1 and CHK2 were examined by immunohistochemistry in 42 cases of gastric cancer. The expressions of ILF2 and CHK1 were unaffected in all cases. The expression and phosphorylation of CHK2 were absent in 2 cases. Despite the expression of proteins, the phosphorylation of KU70 and CHK2 appeared to be impaired in 1 and 4 cases, respectively. In 7 out of 42 cases (17%), DDR appeared to be impaired. Recurrence was noted in 2 out of these 7 cases (29%), whereas the recurrence was noted in 2 out of the remaining 35 cases (6%). The expression levels of KU70, ILF2, CHK1, CHK2 and TP53 were further examined in 4 gastric cancer cell lines. The expression and phosphorylation levels following exposure to ultraviolet radiation were abnormal in the 3 cell lines. The normal consecutive phosphorylation of CHK1 and CHK2, the upregulation of TP53 and an increase in apoptotic cell death following exposure to ultraviolet radiation was detected only in one cell line, suggesting that the preserved functions of DDR and TP53 are necessary for the determination of cell fate. It is thus suggested that DDR plays an important role in the pathobiology of gastric cancers. PMID- 29328365 TI - Nuclear GSK3beta induces DNA double-strand break repair by phosphorylating 53BP1 in glioblastoma. AB - Glioblastoma is the most malignant and lethal subtype brain tumors with high risk of recurrence and therapeutic resistance. Emerging evidence has indicated that glycogen synthesis kinase 3 (GSK3)beta plays oncogenic roles in multiple tumor types; however, the underlying mechanisms remain largely unknown. It has also been demonstrated that p53 binding protein 1 (53BP1) plays a central role in DNA double-strand break (DSB) repair. This study aimed to reveal the significance of GSK3beta translocation from the cytoplasm to the nucleus, and to determine whether GSK3beta induces DNA DSB repair in the nuclei of glioblastoma cells via phospho-53BP1. By performing in vitro experiments, we found that GSK3beta translocated from the cytoplasm to the nucleus, and it then bound to 53BP1 following exposure to IR (IR). In addition, 53BP1-mediated DNA DSB repair was observed to be abrogated by the inhibition of GSK3beta. Further experiments on the phosphorylation site of 53BP1 by GSK3beta revealed that the S/T-Q motif may play a critical role. Importantly, our in vivo and in vitro data clearly indicated that GSK3beta induced the phosphorylation of 53BP1 at the Ser166 site. Moreover, brain tumor xenograft models revealed that following exposure to IR plus SB216763, a specific GSK3beta inhibitor, tumor growth was markedly inhibited and the survival of mice markedly increased. Based on these results, we concluded that the phosphorylation of 53BP1 by GSK3beta was indispensable for DNA DSB repair. Our study also suggested that the inhibition of GSK3beta by SB216763 significantly inhibited the proliferation and induced the apoptosis of glioblastoma cells. Taken together, our data indicate that GSK3beta, a key phosphorylation protein for 53BP1, may be a potential target for enhancing the sensitivity of glioblastoma cells to radiation. PMID- 29328364 TI - Genetically-modified stem cells in treatment of human diseases: Tissue kallikrein (KLK1)-based targeted therapy (Review). AB - The tissue kallikrein-kinin system (KKS) is an endogenous multiprotein metabolic cascade which is implicated in the homeostasis of the cardiovascular, renal and central nervous system. Human tissue kallikrein (KLK1) is a serine protease, component of the KKS that has been demonstrated to exert pleiotropic beneficial effects in protection from tissue injury through its anti-inflammatory, anti apoptotic, anti-fibrotic and anti-oxidative actions. Mesenchymal stem cells (MSCs) or endothelial progenitor cells (EPCs) constitute populations of well characterized, readily obtainable multipotent cells with special immunomodulatory, migratory and paracrine properties rendering them appealing potential therapeutics in experimental animal models of various diseases. Genetic modification enhances their inherent properties. MSCs or EPCs are competent cellular vehicles for drug and/or gene delivery in the targeted treatment of diseases. KLK1 gene delivery using adenoviral vectors or KLK1 protein infusion into injured tissues of animal models has provided particularly encouraging results in attenuating or reversing myocardial, renal and cerebrovascular ischemic phenotype and tissue damage, thus paving the way for the administration of genetically modified MSCs or EPCs with the human tissue KLK1 gene. Engraftment of KLK1-modified MSCs and/or KLK1-modified EPCs resulted in advanced beneficial outcome regarding heart and kidney protection and recovery from ischemic insults. Collectively, findings from pre-clinical studies raise the possibility that tissue KLK1 may be a novel future therapeutic target in the treatment of a wide range of cardiovascular, cerebrovascular and renal disorders. PMID- 29328368 TI - Identification of significant biomarkers and pathways associated with gastric carcinogenesis by whole genome-wide expression profiling analysis. AB - The incidence of gastric cancer (GC) is extremely high in East Asia. GC is also one of the most common and lethal forms of cancer from a global perspective. However, to date, we have not been able to determine one or several genes as biomarkers in the diagnosis of GC and have also been unable to identify the genes which are important in the therapy of GC. In this study, we analyzed all genome wide expression profiling arrays uploaded onto the Gene Expression Omnibus (GEO) database to filtrate the differentially expressed genes (DEGs) between normal stomach tissues and GC tissues. GSE13911, GSE19826 and GSE79973 were based on the GPL570 platform, and GSE29272 was based on the GPL96 platform. We screened out the DEGs from the two platforms and by selecting the intersection of these two platforms, we identified the common DEGs in the sequencing data from different laboratories. Finally, we obtained 3 upregulated and 34 downregulated DEGs in GC from 384 samples. As the number of downregulated DEGs was greater than that of the upregulated DEGs, functional analysis and pathway enrichment analysis were performed on the downregulated DEGs. Through our analysis, we identified the most significant genes associated with GC, such as secreted phosphoprotein 1 (SPP1), sulfatase 1 (SULF1), thrombospondin 2 (THBS2), ATPase H+/K+ transporting beta subunit (ATP4B), gastric intrinsic factor (GIF) and gastrokine 1 (GKN1). The prognostic power of these genes was corroborated in the Oncomine database and by Kaplan-Meier plotter (KM-plotter) analysis. Moreover, gastric acid secretion, collecting duct acid secretion, nitrogen metabolism and drug metabolism were significantly related to GC. Thus, these genes and pathways may be potential targets for improving the diagnosis and clinical effects in patients with GC. PMID- 29328367 TI - Tumorigenic proteins upregulated in the MYCN-amplified IMR-32 human neuroblastoma cells promote proliferation and migration. AB - Childhood neuroblastoma is one of the most common types of extra-cranial cancer affecting children with a clinical spectrum ranging from spontaneous regression to malignant and fatal progression. In order to improve the clinical outcomes of children with high-risk neuroblastoma, it is crucial to understand the tumorigenic mechanisms that govern its malignant behaviors. MYCN proto-oncogene, bHLH transcription factor (MYCN) amplification has been implicated in the malignant, treatment-evasive nature of aggressive, high-risk neuroblastoma. In this study, we used a SILAC approach to compare the proteomic signatures of MYCN amplified IMR-32 and non-MYCN-amplified SK-N-SH human neuroblastoma cells. Tumorigenic proteins, including fatty-acid binding protein 5 (FABP5), L1-cell adhesion molecule (L1-CAM), baculoviral IAP repeat containing 5 [BIRC5 (survivin)] and high mobility group protein A1 (HMGA1) were found to be significantly upregulated in the IMR-32 compared to the SK-N-SH cells and mapped to highly tumorigenic pathways including, MYC, MYCN, microtubule associated protein Tau (MAPT), E2F transcription factor 1 (E2F1), sterol regulatory element binding transcription factor 1 or 2 (SREBF1/2), hypoxia-inducible factor 1alpha (HIF-1alpha), Sp1 transcription factor (SP1) and amyloid precursor protein (APP). The transcriptional knockdown (KD) of MYCN, HMGA1, FABP5 and L1-CAM significantly abrogated the proliferation of the IMR-32 cells at 48 h post transfection. The early apoptotic rates were significantly higher in the IMR-32 cells in which FABP5 and MYCN were knocked down, whereas cellular migration was significantly abrogated with FABP5 and HMGA1 KD compared to the controls. Of note, L1-CAM, HMGA1 and FABP5 KD concomitantly downregulated MYCN protein expression and MYCN KD concomitantly downregulated L1-CAM, HMGA1 and FABP5 protein expression, while survivin protein expression was significantly downregulated by MYCN, HMGA1 and FABP5 KD. In addition, combined L1-CAM and FABP5 KD led to the concomitant downregulation of HMGA1 protein expression. On the whole, our data indicate that this inter-play between MYCN and the highly tumorigenic proteins which are upregulated in the malignant IMR-32 cells may be fueling their aggressive behavior, thereby signifying the importance of combination, multi-modality targeted therapy to eradicate this deadly childhood cancer. PMID- 29328370 TI - Ammonium tetrathiomolybdate enhances the antitumor effects of cetuximab via the suppression of osteoclastogenesis in head and neck squamous carcinoma. AB - Head and neck squamous cell carcinoma (HNSCC) poses a significant challenge clinically where one of the mechanisms responsible for the invasion into facial bones occurs via the activation of osteoclasts. Copper has been demonstrated to play a key role in skeletal remodeling. However, the role of copper in cancer associated bone destruction is thus far unknown. Lysyl oxidase (LOX) is a copper dependent enzyme that promotes osteoclastogenesis. In the present study, we investigated the effects of copper on HNSCC with bone invasion by the copper chelator, ammonium tetrathiomolybdate (TM) in vitro and in vivo. We demonstrate that TM blocks the proliferation of HNSCC cells, inhibits LOX activation and decreases the expression of the receptor activator of nuclear factor-kappaB ligand (RANKL) in osteoblasts and osteocytes, subsequently suppressing bone destruction. These findings suggest that copper is a potential target for the treatment of HNSCCs associated with bone destruction. PMID- 29328369 TI - PITX2 DNA-methylation predicts response to anthracycline-based adjuvant chemotherapy in triple-negative breast cancer patients. AB - Triple-negative breast cancer (TNBC) constitutes a heterogeneous breast cancer subgroup with poor prognosis; survival rates are likely to be lower with TNBC compared to other breast cancer subgroups. For this disease, systemic adjuvant chemotherapy regimens often yield suboptimal clinical results. To improve treatment regimens in TNBC, identification of molecular biomarkers may help to select patients for individualized adjuvant therapy. Evidence has accumulated that determination of the methylation status of the PITX2 gene provides a predictive value in various breast cancer subgroups, either treated with endocrine-based therapy or anthracycline-containing chemotherapy. To further explore the validity of this novel predictive candidate biomarker, in the present exploratory retrospective study, determination of the PITX2 DNA-methylation status was assessed for non-metastatic TNBC patients treated with adjuvant anthracycline-based chemotherapy by molecular analysis of breast cancer tissues. The PITX2 DNA-methylation status was determined in fresh-frozen tumor tissue specimens (n=56) by methylation-specific qRT-PCR (qMSP) and the data related to disease-free and overall survival, applying an optimized DNA-methylation score of 6.35%. For non-metastatic TNBC patients treated with adjuvant systemic anthracycline-based chemotherapy, a low PITX2 DNA-methylation status (<6.35) defines TNBC patients with poor disease-free and overall survival. Univariate and multivariate analyses demonstrate the statistically independent predictive value of PITX2 DNA-methylation. For non-metastatic TNBC patients, selective determination of the PITX2 DNA-methylation status may serve as a cancer biomarker for predicting response to anthracycline-based adjuvant chemotherapy. The assay based on methylation of the PIXT2 gene can be applied to frozen and routinely available formalin-fixed, paraffin-embedded (FFPE) breast cancer tumor tissues that will not only define those TNBC patients who may benefit from anthracycline based chemotherapy but also those who should be spared the necessity of such potentially toxic treatment. Such patients should be allocated to alternative treatment options. PMID- 29328371 TI - CD133 expression predicts post-operative recurrence in patients with colon cancer with peritoneal metastasis. AB - Despite extensive research on cancer stem cells in colorectal cancer, the impact of stem cell markers on patient survival remains unclear, particularly in those with distant metastasis. In this study, we focused on colon cancer with peritoneal metastasis and investigated the association between the expression of CD133, aldehyde dehydrogenase-1 (ALDH1) and leucine-rich repeating G-protein coupled receptor-5 (Lgr5), and disease prognosis. Putative stem cell marker expression was immunohistochemically evaluated in samples from 142 primary tumours and 75 peritoneal nodules. The associations between the expression of these markers and clinicopathological characteristics, overall survival and disease-free survival were analysed. The expression of CD133, ALDH1 and Lgr5 was found to be positive in 55.6, 47.2 and 78.9% of the primary tumour samples, respectively. While their expression was not associated with overall survival, disease-free survival was significantly worse in the CD133-negative group (36.1 vs. 13.7%, P=0.041). Multivariable analysis confirmed that a negative CD133 expression was an independent risk factor for a reduced disease-free survival (P=0.005). Furthermore, the benefit of systemic chemotherapy was significantly greater in the CD133-negative group (P=0.039). On the whole, our data indicated that patients with colon cancer with CD133-negative expression had a reduced disease-free survival. Thus, we propose that CD133 expression may be a useful clinical biomarker in the treatment of colon cancer with peritoneal metastasis. PMID- 29328372 TI - Differential microRNA expression profiles and bioinformatics analysis between young and aging spontaneously hypertensive rats. AB - MicroRNAs (miRNAs/miRs) serve a role as important regulators in cardiac hypertrophy. The present study aimed to reveal the differential expression profile of miRNAs between young and aging spontaneously hypertensive rats (SHRs) and studied the functional annotation of predicted targets. Briefly, 3-month-old and 12-month-old SHRs (n=3/group) were subjected to echocardiography, histopathological analysis and dihydroethidium staining. Subsequently, small RNA sequencing and data processing was conducted to identify the differentially expressed miRNAs between these two groups. Eight significantly upregulated miRNAs were validated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR), followed by in silico target gene prediction. Functional annotation analysis of the predicted targets was performed using Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) databases. As a result, significantly impaired left ventricular diastolic function was detected in the 12 month-old SHRs, alongside increased myocyte cross-sectional area and percentage area of fibrosis, elevated reactive oxygen species production and reduced microvessel density (P<0.05). Compared with the 3-month-old SHRs, 21 miRNAs were significantly upregulated and five miRNAs were downregulated in 12-month-old rats (P<0.05). Eight upregulated, remodeling-associated miRNAs, including rno-miR-132 3p, rno-miR-182, rno-miR-208b-3p, rno-miR-212-3p, rno-miR-214-3p, rno-miR-218a 5p, rno-miR-221-3p and rno-miR-222-3p, underwent bioinformatics analysis. The target genes were significantly enriched in 688 GO terms and 39 KEGG pathways, including regulation of peptidyl-tyrosine phosphorylation, regulation of protein serine/threonine kinase activity, adrenergic signaling in cardiomyocytes, ErbB signaling pathway, mTOR signaling pathway, FoxO signaling pathway, Ras signaling pathway, insulin secretion, adipocytokine signaling pathway, HIF-1 signaling pathway, Rap1 signaling pathway, VEGF signaling pathway and TNF signaling pathway. Collectively, the present study identified a dysregulated miRNA profile in aging SHRs, which targeted numerous signaling pathways associated with cardiac hypertrophy, autophagy, insulin metabolism, angiogenesis and inflammatory response. PMID- 29328373 TI - Integrative gene ontology and network analysis of coronary artery disease associated genes suggests potential role of ErbB pathway gene EGFR. AB - Coronary artery disease (CAD) is a major cause of mortality in India, more importantly the young Indians. Combinatorial and integrative approaches to evaluate pathways and genes to gain an improved understanding and potential biomarkers for risk assessment are required. Therefore, 608 genes from the CADgene database version 2.0, classified into 12 functional classes representing the atherosclerotic disease process, were analyzed. Homology analysis of the unique list of gene ontologies (GO) from each functional class gave 8 GO terms represented in 11 and 10 functional classes. Using disease ontology analysis 80 genes belonging to 8 GO terms, using FunDO suggested that 29 of them were identified to be associated with CAD. Extended network analysis of these genes using STRING version 9.1 gave 328 nodes and 4,525 interactions of which the top 5% had a node degree of >=75 associated with pathways including the ErbB signaling pathway with epidermal growth factor receptor (EGFR) gene as the central hub. Evaluation of EFGR protein levels in age and gender-matched 342 CAD patients vs. 342 control subjects demonstrated significant differences [controls=149.76+/-2.47 pg/ml and CAD patients stratified into stable angina (SA)=161.65+/-3.40 pg/ml and myocardial infarction (MI)=171.51+/-4.26 pg/ml]. Logistic regression analysis suggested that increased EGFR levels exhibit 3-fold higher risk of CAD [odds ratio (OR) 3.51, 95% confidence interval [CI] 1.96-6.28, P<=0.001], upon adjustment for hypertension, diabetes and smoking. A unit increase in EGFR levels increased the risk by 2-fold for SA (OR 2.58, 95% CI 1.25 5.33, P=0.01) and 3.8-fold for MI (OR 3.82, 95% CI 1.94-7.52, P<=0.001) following adjustment. Thus, the use of ontology mapping and network analysis in an integrative manner aids in the prioritization of biomarkers of complex disease. PMID- 29328374 TI - ATX-LPA axis facilitates estrogen-induced endometrial cancer cell proliferation via MAPK/ERK signaling pathway. AB - Autotaxin (ATX) is a key enzyme that converts lysophosphatidylcholine to lysophosphatidic acid (LPA). ATX is a crucial factor that facilitates cancer progression; however, the effect of ATX on endometrial cancer has not been explored. The aim of the present study was to investigate the role of ATX in the progression of endometrial cancer. The immunohistochemical results revealed higher protein expression levels of ATX and LPA receptors (LPA 1, 2 and 3) in human endometrial cancer tissue than in non-carcinoma tissue. In addition, reverse transcription-quantitative polymerase chain reaction and western blotting analysis demonstrated that ATX and LPA receptor mRNA and protein expression was greater in Ishikawa cells, which are positive for estrogen receptor (ER), than in Hec-1A cells that exhibit low ER expression. Short interfering RNA knockdown of ATX in Ishikawa cells led to decreased cell proliferation and cell colony number, as determined by Cell Counting kit-8 and colony formation assays. Estrogen stimulated ATX mRNA expression. Inhibition of ATX decreased estrogen and LPA induced cell proliferation. High LPA levels markedly elevated the phosphorylation levels of extracellular signal-regulated kinase (ERK). ATX downregulation moderately decreased estrogen- and LPA-induced phosphorylation of ERK. In addition, the ERK inhibitor, PD98059, reduced cell proliferation with estrogen, ATX and LPA treatment. The present study suggested that the ATX-LPA axis may facilitate estrogen-induced cell proliferation in endometrial cancer via the mitogen-activated protein kinase/ERK signaling pathway. The present study may provide ideas and an experimental basis for clinicians to identify new molecular targeted drugs for the treatment of endometrial cancer. PMID- 29328376 TI - Identification of a novel compound heterozygous mutation of the CYP21A2 gene causing 21-hydroxylase deficiency in a Chinese pedigree. AB - 21-Hydroxylase deficiency (21-OHD) is the most common cause of congenital adrenal hyperplasia. Inherited in an autosomal recessive manner, 21-OHD is caused by mutations in the cytochrome P450 family 21 subfamily A member 2 (CYP21A2) gene. The present study was designed to investigate the genetic characteristics of one Chinese pedigree and to identify the genotype-phenotype association, thereby facilitating the precise diagnosis of 21-OHD at the molecular level. Members of a Chinese family with 21-OHD were screened for mutations in the CYP21A2 gene. Clinical data and biochemical parameters, including androgen and derivatives, were collected. Complete DNA sequencing and multiplex ligation-dependent probe amplification (MLPA) were utilized to analyze the genetic variations in the full length CYP21A2 gene. A C-T transition located in exon 8 of the CYP21A2 gene, leading to the predicted amino acid residue change from Arg to Trp at codon 342, was identified in the mother and four sisters. Additionally, heterozygous deletion mutations of exons 1, 3, 4, 6 and 7 of paternal origin were detected in the four sisters by MLPA analysis. During the one-year follow-up, the four sisters exhibited symptom improvement following treatment with glucocorticoids, and the proband and one sister successfully conceived. The results of the present study demonstrated that novel compound heterozygous variations in the CYP21A2 gene may be causative agents of 21-OHD, providing insights into the functions of this gene and a more comprehensive understanding of the disorder. PMID- 29328375 TI - The role of IL-16 gene polymorphisms in endometriosis. AB - Endometriosis is one of the most common gynecological diseases affecting up to 10% of the female population of childbearing age and a major cause of pain and infertility. It is influenced by multiple genetic, epigenetic and environmental factors. Interleukin-16 (IL-16) is a proinflammatory cytokine playing a pivotal role in many inflammatory and autoimmune diseases as well as in the pathogenesis of endometriosis. The aim of the present study was to evaluate the association of two IL-16 gene single nucleotide polymorphisms (SNPs), rs4072111 and rs11556218, with the risk of endometriosis in women from Greece as well as to gain insight about the structural consequences of these two exonic SNPs regarding development of the disease. A total of 159 women with endometriosis (stages I-IV) hospitalized for endometriosis, diagnosed by laparoscopic intervention and histologically confirmed, and 146 normal controls were recruited and genotyped. Subjects were genotyped using a polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) strategy. A significant association was detected regarding the GG and GT genotype as well as 'G' allele of rs11556218 in patients with endometriosis. The rs4072111 SNP of the IL-16 gene was not found to be associated with an increased susceptibility to endometriosis either for all patients (stages I-IV) or for stage III and IV of the disease only. Our results demonstrated that rs11556218 is associated with endometriosis in Greek women, probably by resulting in the aberrant expression of IL-16, as suggested by the bioinformatics analysis conducted on the SNP-derived protein sequences, which indicated a possible association between mutation and functional modification of Pro-IL-16. PMID- 29328377 TI - Feature genes in metastatic breast cancer identified by MetaDE and SVM classifier methods. AB - The aim of the present study was to investigate the feature genes in metastatic breast cancer samples. A total of 5 expression profiles of metastatic breast cancer samples were downloaded from the Gene Expression Omnibus database, which were then analyzed using the MetaQC and MetaDE packages in R language. The feature genes between metastasis and non-metastasis samples were screened under the threshold of P<0.05. Based on the protein-protein interactions (PPIs) in the Biological General Repository for Interaction Datasets, Human Protein Reference Database and Biomolecular Interaction Network Database, the PPI network of the feature genes was constructed. The feature genes identified by topological characteristics were then used for support vector machine (SVM) classifier training and verification. The accuracy of the SVM classifier was then evaluated using another independent dataset from The Cancer Genome Atlas database. Finally, function and pathway enrichment analyses for genes in the SVM classifier were performed. A total of 541 feature genes were identified between metastatic and non-metastatic samples. The top 10 genes with the highest betweenness centrality values in the PPI network of feature genes were Nuclear RNA Export Factor 1, cyclin-dependent kinase 2 (CDK2), myelocytomatosis proto-oncogene protein (MYC), Cullin 5, SHC Adaptor Protein 1, Clathrin heavy chain, Nucleolin, WD repeat domain 1, proteasome 26S subunit non-ATPase 2 and telomeric repeat binding factor 2. The cyclin-dependent kinase inhibitor 1A (CDKN1A), E2F transcription factor 1 (E2F1), and MYC interacted with CDK2. The SVM classifier constructed by the top 30 feature genes was able to distinguish metastatic samples from non-metastatic samples [correct rate, specificity, positive predictive value and negative predictive value >0.89; sensitivity >0.84; area under the receiver operating characteristic curve (AUROC) >0.96]. The verification of the SVM classifier in an independent dataset (35 metastatic samples and 143 non-metastatic samples) revealed an accuracy of 94.38% and AUROC of 0.958. Cell cycle associated functions and pathways were the most significant terms of the 30 feature genes. A SVM classifier was constructed to assess the possibility of breast cancer metastasis, which presented high accuracy in several independent datasets. CDK2, CDKN1A, E2F1 and MYC were indicated as the potential feature genes in metastatic breast cancer. PMID- 29328378 TI - Liposome-delivered baicalein induction of myeloid leukemia K562 cell death via reactive oxygen species generation. AB - Baicalein (BL), a potential cancer chemopreventative flavone, has been reported to inhibit cancer cell growth by inducing apoptosis and causing cell cycle arrest in various human cancer cell models. Delivery of BL via nanoliposomes has been shown to improve its oral bioavailability and long-circulating property in vivo. However, the role of BL in the inhibition of human chronic myeloid leukemia (CML) K562 cell growth and its underlying mechanisms has yet to be elucidated. In the present study, BL was formulated into liposomes with different sizes to improve its solubility and stability. The cytotoxic and pro-apoptotic effects of free BL and liposomal BL were also evaluated. The results demonstrated that 100 nm liposomes were the most stable formulation when compared with 200 and 400 nm liposomes. Liposomal BL inhibited K562 cell growth as efficiently as free BL (prepared in DMSO), indicating that the liposome may be a potential vehicle to deliver BL for the treatment of CML. Flow cytometry analysis showed that there was significant (P<0.005) cell cycle arrest in the sub-G1 phase (compared with vehicle control), indicating cell apoptosis following 20 uM liposomal BL or free BL treatment of K562 cells for 48 h. The induction of cell apoptosis by all BL preparations was further confirmed through the staining of treated cells with Annexin V-fluorescein isothiocyanate/propidium iodide. A significant increase in reactive oxygen species (ROS) gene-ration was observed in free BL and liposomal BL treated cells, with a higher level of ROS produced from those treated with free BL. This indicated that cell apoptosis induced by BL may be via ROS generation and liposome delivery may further extend the effect through its long circulating property. PMID- 29328379 TI - miR-1273g-3p promotes proliferation, migration and invasion of LoVo cells via cannabinoid receptor 1 through activation of ERBB4/PIK3R3/mTOR/S6K2 signaling pathway. AB - MicroRNAs (miR) are important in various crucial cell processes including proliferation, migration and invasion. Dysregulation of miRNAs have been increasingly reported to contribute to colorectal cancer. However, the detailed biological function and potential mechanisms of miR-1273g-3p in colorectal cancer remain poorly understood. The expression levels of miR-1273g-3p in human colorectal cancer LoVo cell lines were detected via reverse transcription quantitative polymerase chain reaction (RT-qPCR). The target genes of miR-1273g 3p were predicted by bioinformatics and verified by a luciferase reporter assay, RT-qPCR and western blotting. The MTT, wound-healing and Transwell assays were used to examine the biological functions of miR-1273g-3p in LoVo cells. The potential molecular mechanisms of miR-1273g-3p on LoVo cell proliferation, migration and invasion was detected by western blotting. The results of the present study demonstrated that miR-1273g-3p expression was extensively upregulated in LoVo cells compared with the normal colon epithelial NCM460 cell line. Further studies indicated that miR-1273g-3p inhibitor significantly suppressed LoVo cell proliferation, migration and invasion compared with inhibitor control. Following this, the cannabinoid receptor 1 (CNR1) was identified as a direct target gene of miR-1273g-3p. Knockdown of CNR1 restored the phenotypes of LoVo cells transfected with miR-1273g-3p inhibitor. Furthermore, the potential molecular mechanism of miR-1273g-3p on LoVo cell proliferation, migration and invasion may be mediated by activating the Erb-B2 receptor tyrosine kinase 4 (ERBB4)/phosphoinositide-3-kinase regulatory subunit 3 (PIK3R3)/mechanistic target of rapamycin (mTOR)/S6 kinase 2 (S6K2) signaling pathway. These observations indicated that miR-1273g-3p promoted the proliferation, migration and invasion of LoVo cells via CNR1, and this may have occurred through activation of the ERBB4/PIK3R3/mTOR/S6K2 signaling pathway, suggesting that miR-1273g-3p may serve as a novel therapeutic target for the effective treatment of colorectal cancer. PMID- 29328380 TI - Role of the PI3K-AKT-mTOR pathway in hepatitis B virus infection and replication. AB - The replication of hepatitis B virus (HBV) may be modulated by a variety of cell signaling pathways, including the phosphatidylinositol 3-kinase (PI3K)-RAC-alpha serine/threonine-protein kinase (AKT)-serine/threonine-protein kinase mTOR (mTOR) pathway. The aim of the present study was to determine the regulatory effects of this pathway on the infection and replication of HBV. The results indicated that the HBV entry process may activate the AKT pathway, as demonstrated by AKT phosphorylation in HBV natural infection. However, inhibition of AKT phosphorylation by short-term treatment with AKT inhibitors was unable to block HBV entry, which suggested that AKT activation induced by HBV infection is not essential for viral entry process. Prolonged treatment with PI3K-AKT-mTOR pathway inhibitors markedly promoted HBV replication in HBV replicating and natural infection models. The PI3K-AKT-mTOR pathway was therefore identified to be a negative regulator of HBV replication. These inhibitors enhanced the replication and transcription of HBV in an HBx-dependent way. The results additionally indicated that a PI3K inhibitor, Ly294002, inhibited the secretion of the small surface antigen of HBV in a PI3K-AKT-independent manner. The inhibitor Ly294002 may be used as a tool for the drug development of surface antigen secretion inhibitors. PMID- 29328381 TI - Overexpressing microRNA-150 attenuates hypoxia-induced human cardiomyocyte cell apoptosis by targeting glucose-regulated protein-94. AB - MicroRNA (miR)-150 has been demonstrated to protect the heart from ischemic injury. However, the protective effect of miR-150 in hypoxia-injured cardiomyocytes remains unclear. The present study aimed to investigate the target gene of miR-150 and the underlying molecular mechanisms of miR-150 in hypoxia induced cardiomyocyte apoptosis. Using the hypoxia model of human cardiomyocytes (HCMs) in vitro, it was demonstrated that miR-150 was markedly inhibited in HCMs after hypoxia treatment. Overexpressing miR-150 significantly decreased hypoxia induced HCM death and apoptosis. In addition, GRP94 was revealed to be a direct target of miR-150. Additionally, GRP94 was demonstrated to be involved in hypoxia induced HCM apoptosis, and the protein expression levels of GRP94 were increased in HCMs in the presence of hypoxia. These findings demonstrated that miR-150 is involved in hypoxia-mediated gene regulation and apoptosis in HCMs. Furthermore, GRP94 knockout increased the cell viability of hypoxia-impaired HCMs with miR-150 mimic or miR-150 inhibitor transfection. In conclusion, miR-150 may serve a protective role in cardiomyocyte hypoxia injury, and the underlying mechanism was mediated, at least partially, by inhibiting GRP94 expression. These findings may provide a novel insight for the therapy of hypoxia-induced myocardial I/R injury. PMID- 29328382 TI - Propofol postconditioning protects H9c2 cells from hypoxia/reoxygenation injury by inducing autophagy via the SAPK/JNK pathway. AB - Propofol postconditioning (P-PostC) offers cardioprotection in mice, and the upregulation of autophagy protects cardiac cells against ischemia/reperfusion injury. The present study aimed to examine the effects of P-PostC on the induction of autophagy and its potential roles in hypoxia/reoxygenation (H/R) injury. Rat heart-derived H9c2 cells were exposed to H/R, comprising 6 h of hypoxia followed by 4 h of reoxygenation, as well as postconditioning with various concentrations of propofol at the onset of reperfusion. Lactate dehydrogenase (LDH) activity and the rate of cell apoptosis were measured to evaluate the degree of cardiomyocyte H/R injury. The induction of autophagy in myocytes subjected to H/R injury and P-PostC was detected by western blotting and immunofluorescence. Furthermore, the activation of c-Jun N-terminal kinase (JNK) in cells treated with P-PostC with or without co-treatment with SP600125, an inhibitor of JNK, was also determined by western blotting. P-PostC reduced the activity of LDH in the culture medium and the percentage of apoptotic cells compared with cells in the untreated H/R group. In addition, P-PostC induced autophagy and promoted survival signaling in H9c2 cardiac myoblast cells. The inhibition of autophagy by 3-methyladenine treatment diminished the cardioprotective effects of P-PostC. These results indicated that propofol postconditioning promoted cell survival through the induction of autophagy in H9c2 cardiac cells, and that the stress-activated protein kinase/JNK survival pathway may be partly involved in P-PostC-induced autophagy. PMID- 29328383 TI - Oxymatrine protects against the effects of cardiopulmonary resuscitation via modulation of the TGF-beta1/Smad3 signaling pathway. AB - Previous studies have demonstrated that oxymatrine may inhibit ventricular remodeling and serves an important role in the treatment of cardiovascular disease. The present study investigated whether oxymatrine treatment protects against the effects of cardiopulmonary resuscitation (CPR) via regulation of the transforming growth factor-beta1 (TGF-beta1)/mothers against decapentaplegic (Smad) signaling pathway. A CPR model was established in Sprague-Dawley (SD) rats by asphyxiation, and rats were subsequently anaesthetized by intraperitoneal injection of chloral hydrate. SD rats were then administered 25 or 50 mg/kg oxymatrine once a day for 4 weeks. Oxymatrine treatment significantly improved troponin I levels, the ejection fraction, hydroxyproline content and the myocardial performance index in model rats. However, treatment with oxymatrine significantly reduced arterial oxygen tension, arterial lactate levels and oxygen extraction. Treatment with oxymatrine following CPR significantly inhibited the protein expression levels of TGF-beta1, TGF-beta1 receptor type 1 and Smad homolog 3 (Smad3) in model rats. The results of this research indicated that oxymatrine treatment may protect against the effects of CPR via regulation of the TGF-beta1/Smad3 signaling pathway and may be a novel drug for CPR in a clinical setting. PMID- 29328384 TI - Forkhead box protein C1 promotes cell proliferation and invasion in human cervical cancer. AB - Increasing evidence has demonstrated that aberrant forkhead box protein C1 (FOXC1) expression contributes to tumorigenesis in multiple types of malignant tumor. However, the clinical significance and biological roles of FOXC1 in cervical cancer remain unknown. The expression levels of FOXC1 were examined in human cervical cancer tissues and cells using reverse transcription-quantitative polymerase chain reaction, immunohistochemistry and western blotting. Furthermore, high FOXC1 expression was significantly associated with advanced clinical stages, a high degree of malignancy and a poor outcome. FOXC1 silencing inhibited cell growth and enhanced cell apoptosis. Knockdown of FOXC1 markedly suppressed cell migration and invasion in vitro, and resulted in downregulation of phosphorylated-RAC-alpha serine/threonine-protein kinase, proto-oncogene c-Myc and B-cell lymphoma 2. In conclusion, these data indicated that upregulation of FOXC1 contributed to the development of cervical cancer by increasing the growth and motility of the cervical cancer cells, thereby worsening the disease progression in these patients. PMID- 29328385 TI - Tormentic acid inhibits IL-1beta-induced chondrocyte apoptosis by activating the PI3K/Akt signaling pathway. AB - Interleukin-1beta (IL-1beta) accelerates degradation of the cartilage matrix and induces apoptosis of chondrocytes. Tormentic acid (TA) is a triterpene isolated from the stem bark of the Vochysia divergens plant, which has been demonstrated to exert in vitro inhibitory activity against hepatocyte apoptosis. However, the effects of TA on IL-1beta-induced apoptosis of human chondrocytes remain unclear. Therefore, the present study investigated the in vitro effects of TA on human osteoarthritic chondrocyte apoptosis cultivated in the presence of IL-1beta. Human chondrocytes were pretreated with or without various concentrations of TA and then co-incubated in the absence or presence of IL-1beta for 24 h. Cell viability was determined using the MTT assay, and cell apoptosis was detected using a Nucleosome ELISA kit. Caspase-3 activity was detected using a caspase-3 colorimetric assay kit. The levels of B-cell lymphoma 2 (Bcl-2)-associated X protein (Bax), Bcl-2, phosphorylated (p)-phosphoinositide 3-kinase (PI3K), PI3K, p-protein kinase B (Akt) and Akt were measured by western blotting. The results revealed that pretreatment with TA inhibited IL-1beta-induced cytotoxicity and apoptosis in chondrocytes. In addition, TA pretreatment increased B-cell lymphoma (Bcl)-2 expression, and decreased caspase-3 activity and Bax expressionin human chondrocytes. In addition, pretreatment with TA markedly increased the expression of p-PI3K and p-Akt in IL-1beta-induced chondrocytes. Collectively, these results indicate that TA inhibits IL-1beta-induced chondrocyte apoptosis by activating the PI3K/Akt signaling pathway. Therefore, TA may be considered a potential therapeutic target for the treatment of osteoarthritis. PMID- 29328386 TI - Proteomics-based investigation of multiple stages of OSCC development indicates that the inhibition of Trx-1 delays oral malignant transformation. AB - The majority of cases of oral squamous cell carcinoma (OSCC) develop from oral potentially malignant disorders, which have been confirmed to be involved in chronic oxidative stimulation. However, no effective treatment approaches have been used to prevent the development of dysplasia into cancerous lesions thus far. In the present study, a well-established OSCC model was used to detect proteomics profiles at different stages during oral malignant transformation. Of the 15 proteins that were found to be upregulated in both the dysplasia and carcinoma stages, the oxidative stress-associated proteins, thioredoxin-1 (Trx 1), glutaredoxin-1 and peroxiredoxin-2 were note as the proteins with significant changes in expression Trx-1 was identified to be the most significantly upregulated protein in the precancerous stage. Validation experiments confirmed that Trx-1 was overexpressed both in dysplasia and cancerous tissue samples, and the inhibition of Trx-1 was able to promote the apoptosis of OSCC cells under hypoxic conditions. Furthermore, the experimental application of a Trx-1-specific inhibitory agent in an animal model led to a lower cancerization rate and a delay in tumor formation. The possible mechanisms were associated with the increased apoptosis via a reactive oxygen species (ROS)-dependent pathway. Taken together, our findings indicate that Trx-1 may be an important target for delaying oral malignant transformation, which provides a novel therapeutic strategy for the prevention and treatment of OSCC. PMID- 29328387 TI - Rhus verniciflua Stokes extract induces inhibition of cell growth and apoptosis in human chronic myelogenous leukemia K562 cells. AB - Rhus verniciflua Stokes has been widely used as a traditional medicinal plant with a variety of pharmacological activities. We investigated the mechanisms involved in mediating the effects of Rhus verniciflua Strokes (R. verniciflua) extract in human chronic myelogenous leukemia K562 cells, including caspase dependent apoptotic pathways related to cell-cycle arrest, as well as the inhibition of nuclear factor NF-kappaB activation and upregulation of the mitogen activated protein kinase (MAPK) signaling pathway. R. verniciflua extract suppressed the abnormal cellular proliferation of K562 cells in a dose- and time dependent manner and increased the quantitative proportions of cells involved in the early and late process of apoptosis. Furthermore, R. verniciflua extract significantly mediated the mRNA levels of pro-apoptotic and anti-apoptotic regulators, such as Bcl-2, Bax, Mcl-1 and survivin in apoptotic cells. Particularly, the treatment of K562 cells with R. verniciflua extract augmented the caspase-3 activity and increased the expression of caspase-3 protein, while co-treatment with R. verniciflua extract and the permeant pan-caspase inhibitor Z VAD-FMK and caspase-3 inhibitor Z-DEVD-FMK inversely enhanced the proliferation of K562 cells. The extract of R. verniciflua inhibited the activation of NF kappaB and the phosphorylation of ERK. Collectively, these results indicated that the extract of R. verniciflua inhibited the proliferation of human chronic myelogenous leukemia K562 cells by activating the apoptotic process via caspase-3 overexpression and the regulation of the NF-kappaB and MAPK signaling. PMID- 29328389 TI - miR-375 inhibits IFN-gamma-induced programmed death 1 ligand 1 surface expression in head and neck squamous cell carcinoma cells by blocking JAK2/STAT1 signaling. AB - Upregulation of programmed death 1 ligand 1 (PD-L1) in cancer cells and its ligation to PD-1 on T cells facilitates cancer cell escape from immune surveillance. Therapies with PD-1 or PD-L1 antibodies have resulted in marked clinical responses in various cancer types. Hence, modulators that inhibit PD-L1 expression in cancer cells may serve as a novel strategy by which to enhance host immune responses. In the present study, we investigated the effects of miR-375 on PD-L1 expression in head and neck squamous cell carcinoma (HNSCC) cells by qRT PCR and western blot analyses. We confirmed that miR-375 inhibited IFN-gamma induced PD-L1 surface expression in HNSCC cells, and we observed that Janus kinase 2 (JAK2) is a bona fide target of miR-375 and further activated signal transducer and activator of transcription 1 (STAT1). Additionally, miR-375 mediated inhibition of PD-L1 expression was dependent on the JAK2/STAT1 pathway. Therefore, by attenuating PD-1/PD-L1 signaling, miR-375 may also serve as a modulator to increase the cell immune responses to HNSCC. PMID- 29328388 TI - GW4064 attenuates lipopolysaccharide-induced hepatic inflammation and apoptosis through inhibition of the Toll-like receptor 4-mediated p38 mitogen-activated protein kinase signaling pathway in mice. AB - Liver injury is associated with devastating consequences caused by inflammation and apoptosis. The farnesoid X receptor (FXR) is a nuclear receptor that has an essential role in hepatoprotection by maintaining the homeostasis of liver metabolism. The present study investigated the capacity of the FXR agonist GW4064 to protect the livers of mice from lipopolysaccharide (LPS)-induced inflammation and apoptosis. Male C57BL/6J [wild-type (WT)] and FXR knockout (KO) mice were intraperitoneally injected with LPS or saline. LPS-treated mice were intraperitoneally injected with vehicle or GW4064 (20 mg/kg) twice and then sacrificed. Activation of FXR by GW4064 alleviated hepatic inflammation in the LPS-induced murine liver injury model as reflected by reduced serum levels of aspartate aminotransferase and pro-inflammatory cytokine mRNA expression, including tumor necrosis factor-alpha, as well as interleukin-6 and -1beta in WT mice. In addition, Toll-like receptor 4 (TLR4), p38 mitogen-activated protein kinase (MAPK), B-cell lymphoma-2-associated X protein and cytochrome c protein levels were decreased in WT mice receiving LPS with simultaneous GW4064 administration compared with those receiving LPS alone, while this was not observed in FXR KO mice. These results indicated that in WT mice, administration of GW4064 ameliorated LPS-mediated liver injury by upregulation of FXR expression, which was in part mediated by the TLR4/p38 MAPK pathway. PMID- 29328391 TI - Effects of thymosin beta4 on oxygen-glucose deprivation and reoxygenation-induced injury. AB - Cerebral ischemia causes severe brain injury and results in selective neuronal death through programmed cell death mechanisms, including apoptosis and autophagy. Minimizing neuronal injury has been considered a hot topic among clinicians. The present study elucidated the effect of thymosin beta4 (Tbeta4) on neuronal death induced by cerebral ischemia/reperfusion in PC12 cells that were subjected to oxygen-glucose deprivation and reoxygenation (OGD/R). The survival, apoptotic and autophagy rates of PC12 cells were investigated. Tbeta4 pre conditioning prior to OGD/R was performed to evaluate PC12-cell viability and the protective mechanisms of Tbeta4. Tbeta4 significantly increased cell survival after OGD/R. Tbeta4 inhibited the release of lactate dehydrogenase, downregulated malondialdehyde and upregulated the activities of glutathione peroxidase and superoxide dismutase. In addition, Tbeta4 attenuated OGD/R-associated decreases in the expression of P62 and the anti-apoptotic protein B-cell lymphoma-2, as well as the upregulation of autophagy mediators, including autophagy-related protein-5 and the ratio of microtubule-associated protein 1 light chain 3 (LC3) II vs. LC3 I. These results suggested that Tbeta4 effectively inhibits cell apoptosis and autophagy induced by OGD/R. To the best of our knowledge, the present study was the first to report on the antioxidant, anti-apoptotic and anti autophagic effects of Tbeta4 in neuronal-like PC12 cells. These results suggested that Tbeta4 may be explored as a potential treatment for cerebral ischemia. PMID- 29328390 TI - Investigation into the underlying molecular mechanisms of hypertensive nephrosclerosis using bioinformatics analyses. AB - Hypertensive nephrosclerosis (HNS) is a major risk factor for end-stage renal disease. However, the underlying pathogenesis of HNS remains to be fully determined. The gene expression profile of GSE20602, which consists of 14 glomeruli samples from patients with HNS and 4 normal glomeruli control samples, was obtained from the Gene Expression Omnibus database. Gene ontology (GO) and pathway enrichment analyses were performed in order to investigate the functions and pathways of differentially expressed genes (DEGs). Pathway relation and co expression networks were constructed in order to identify key genes and signaling pathways involved in HNS. In total, 483 DEGs were identified to be associated with HNS, including 302 upregulated genes and 181 downregulated genes. Furthermore, GO analysis revealed that DEGs were significantly enriched in the small molecule metabolic process. In addition, pathway analysis also revealed that DEGs were predominantly involved in metabolic pathways. The tricarboxylic acid (TCA) cycle was identified as the hub pathway in the pathway relation network, whereas the sorbitol dehydrogenase (SORD) and cubulin (CUBN) genes were revealed to be the hub genes in the co-expression network. The present study revealed that the SORD, CUBN and albumin genes as well as the TCA cycle and metabolic pathways are involved in the pathogenesis of HNS. The results of the present study may contribute to the determination of the molecular mechanisms underlying HNS, and provide insight into the exploration of novel targets for the diagnosis and treatment of HNS. PMID- 29328392 TI - Targeting bladder cancer using activated T cells armed with bispecific antibodies. AB - In the present study, we aimed to investigate whether EGFR or HER2 may serve as a target for T cell-mediated immunotherapy against human bladder cancer. Expression of EGFR and HER2 was detected on the surface of bladder cancer cells, including Pumc-91 and T24 cells, and their chemotherapeutic drug-resistant counterparts. Activated T cells (ATCs) were generated from healthy PBMCs that were stimulated by the combination of anti-CD3 monoclonal antibody and anti-CD28 monoclonal antibody in the presence of interleukin-2 for 14 days. The ATCs were then armed with chemically hetero-conjugated anti-CD3xanti-EGFR (EGFRBi-Ab) or anti-CD3xanti HER2 (HER2Bi-Ab). The specific cytolytic activity of ATCs armed with EGFRBi-Ab or HER2Bi-Ab against human bladder cancer cells was evaluated by lactate dehydrogenase activity assays in vitro. In contrast to unarmed ATCs, EGFRBi-Ab armed ATCs and HER2Bi-Ab-armed ATCs showed increased cytotoxic activity against bladder cancer cells. Moreover, Bi-Ab-armed ATCs expressed higher levels of activating marker CD69 and secreted more IFN-gamma, TNF-alpha and IL-2 than did unarmed ATCs. EGFRBi-Ab- or HER2Bi-Ab-armed ATCs may provide a promising immunotherapy for bladder cancer. PMID- 29328394 TI - Application of multifunctional nanomaterials in cancer vaccines (Review). AB - Tumor immunotherapy has been in development for more than a century. With the rapid developments in biotechnology research in recent years, immunotherapy has become a promising oncotherapy strategy after surgery, chemotherapy and radiotherapy. Cancer vaccines are a promising new treatment strategy and the application of nanotechnology in cancer vaccines, greatly enhances their effectiveness. Such applications indicate the bright prospects of tumor immunotherapy. The multifunctional nanomaterials used in cancer vaccines and their practical application in specific cancer vaccines are hereby reviewed. In addition, a preliminary analysis of the current and prospective use of nanotechnology with the purpose of providing solutions to cancer vaccine challenges is presented. PMID- 29328393 TI - Paediatric Virology and its interaction between basic science and clinical practice (Review). AB - The 3rd Workshop on Paediatric Virology, which took place on October 7th, 2017 in Athens, Greece, highlighted the role of breast feeding in the prevention of viral infections during the first years of life. Moreover, it focused on the long-term outcomes of respiratory syncytial virus and rhinovirus infections in prematurely born infants and emphasised the necessity for the development of relevant preventative strategies. Other topics that were covered included the vaccination policy in relation to the migration crisis, mother-to-child transmission of hepatitis B and C viruses, vaccination against human papilloma viruses in boys and advances on intranasal live-attenuated vaccination against influenza. Emphasis was also given to the role of probiotics in the management of viral infections in childhood, the potential association between viral infections and the pathogenesis of asthma, fetal and neonatal brain imaging and the paediatric intensive care of children with central nervous system viral infections. Moreover, an interesting overview of the viral causes of perinatal mortality in ancient Greece was given, where recent archaeological findings from the Athenian Agora's bone well were presented. Finally, different continuing medical educational options in Paediatric Virology were analysed and evaluated. The present review provides an update of the key topics discussed during the workshop. PMID- 29328395 TI - Bioinformatic identification of chemoresistance-associated microRNAs in breast cancer based on microarray data. AB - Breast cancer is the most commonly diagnosed cancer among females, and chemoresistance constitutes a major clinical obstacle to the treatment of this disease. MicroRNAs (miRNAs) are related to human cancer development, progression and drug resistance. To identify breast cancer chemoresistance-associated miRNAs, miRNA microarray dataset GSE71142, including five chemoresistant breast cancer tissues and five chemosensitive tissues, was downloaded from the Gene Expression Omnibus (GEO) database. Differentially expressed miRNAs (DE-miRNAs) were obtained by t-test and the potential target genes were predicted by miRWalk2.0. Functional and pathway enrichment analysis by WebGestalt was performed for the potential target genes of DE-miRNAs. Protein-protein interaction (PPI) network was established by STRING database and visualized by Cytoscape software. Enriched transcription factors by the target genes were obtained from FunRich. Breast cancer-associated miRNA-gene pairs were identified from miRWalk2.0. A total of 22 DE-miRNAs were screened out, including 10 upregulated miRNAs (e.g., miR-196a-5p) and 12 downregulated miRNAs (e.g., miR-4472) in the chemoresistant breast cancer tissues, compared with chemosensitive tissues. In total 1,278 target genes were screened out, and they were involved in breast cancer-related pathways such as pathways in cancer, signaling pathways regulating pluripotency of stem cells, endocrine resistance, breast cancer, mTOR signaling and Hippo signaling pathway. NOTCH1 and MAPK14 were identified as hub genes in the PPI network. EGR1 and SP1 were the most enriched transcription factors by the target genes. Several breast cancer-associated miRNA-gene pairs including miR-214-TP53 and miR-16-PPM1D were identified. The current bioinformatics study of miRNAs based on microarray may offer a new understanding into the mechanisms of breast cancer chemoresistance, and may identify novel miRNA therapeutic targets. PMID- 29328396 TI - Placenta-associated serum exosomal miR-155 derived from patients with preeclampsia inhibits eNOS expression in human umbilical vein endothelial cells. AB - Preeclampsia (PE) is considered to be initiated by abnormal placentation in early pregnancy and results in systemic endothelial cell dysfunction in the second or third trimester. MicroRNAs (miRs) expressed in the human placenta can be secreted into maternal circulation via exosomes, which are secreted extracellular vesicles that serve important roles in intercellular communication. The present study hypothesized that upregulation of placenta-associated serum exosomal miR-155 from patients with PE may suppress endothelial nitric oxide synthase (eNOS) expression in endothelial cells. The results demonstrated that placenta-associated serum exosomes from patients with PE decreased nitric oxide (NO) production and eNOS expression in primary human umbilical vein endothelial cells (HUVECs). Subsequently, an upregulation of placenta-associated serum exosomal miR-155 was detected in patients with PE compared with in gestational age-matched normal pregnant women. In addition, the results demonstrated that overexpression of exosomal miR-155 from BeWo cells was internalized into HUVECs, and was able to suppress eNOS expression by targeting its 3'-untranslated region. The results of the present study indicated that placenta-associated serum exosomes may inhibit eNOS expression in endothelial cell during PE development in humans, and this phenomenon may be partly due to increased miR-155 expression in placenta associated serum exosomes. PMID- 29328397 TI - Aberrant expression of IL-23/IL-23R in patients with breast cancer and its clinical significance. AB - Breast cancer tissues and adjacent tissues were collected from 32 patients who were treated in The Third Hospital of Chengde City. Reverse transcription quantitative polymerase chain reaction results demonstrated that, compared with the adjacent tissues, interleukin (IL)-23/IL-23 receptor (R) gene expression levels were notably higher in breast cancer tissues. Furthermore, IL-23 and IL 23R expression levels were positively correlated with patients' tumor size, TNM stage and metastasis. Recombinant human (rh) IL-23 (10 ng/ml) was used for the stimulation of the MCF-7 cell line. Effects of rh IL-23 (10 ng/ml) on cell proliferation was detected after MCF-7 cells were incubated with rh IL-23 for 48 h. Whether pre-treatment with polyclonal antibody (PAb) IL-23p19, a neutralizing antibody specific for IL-23, may influence the effects of IL-23 on cell behavior was also investigated. Cell proliferation assay and cell apoptosis assay were evaluated using MTT assay and flow cytometry assay, respectively. Results suggested that PAb IL-23p19 reduced IL-23-induced cell proliferation whereas induced IL-23 inhibited cell apoptosis. Western blot analysis was performed for the detection of molecules that may be responsible for the aforementioned changes. Results indicated that PAb IL-23p19 treatment reduced IL-23-induced upregulation of B-cell lymphoma-2 protein expression and activation of the janus kinase 2/signal transducer and activator of transcription 3 signaling pathway. The present results suggested that IL-23 may be a potential prognosis marker and target for the treatment of breast cancer patients. PMID- 29328398 TI - Synergistic antitumor effect of brusatol combined with cisplatin on colorectal cancer cells. AB - Colorectal cancer (CRC) is a common and life-threatening type of malignant cancer, which is associated with a high mortality rate. Cisplatin (CDDP) is a commonly used chemotherapy drug with significant side effects. Brusatol (BR) is one of the principal chemical compounds isolated from the Chinese herb Bruceae Fructus, which has been reported to markedly inhibit the proliferation of numerous cancer cell lines. The present study aimed to investigate the possible synergistic anticancer effects of CDDP combined with BR on CT-26 cells, and to evaluate the underlying mechanisms of action. The growth inhibitory effects of BR, CDDP, and BR and CDDP cotreatment on CT-26 cells were assessed by MTT assay. Cell apoptosis were determined by flow cytometry and western blot analysis. The results indicated that compared with single-agent treatment, cotreatment of CT-26 cells with CDDP and BR synergistically inhibited cell proliferation and increased cellular apoptosis. Furthermore, treatment of CT-26 cells with CDDP and BR resulted in a marked increase in the release of cytosolic cytochrome c, decreased expression of procaspase-3 and procaspase-9, and upregulation of the B-cell lymphoma 2 (Bcl-2)-associated X protein/Bcl-2 ratio compared with treatment with BR or CDDP alone. These results strongly suggested that the combination of CDDP and BR was able to produce a synergistic antitumor effect in CRC cells, thus providing a solid foundation for further development of this combination regimen into an effective therapeutic method for CRC. PMID- 29328399 TI - miR-378a enhances the sensitivity of liver cancer to sorafenib by targeting VEGFR, PDGFRbeta and c-Raf. AB - Liver cancer is a globally prevalent cancer with poor prognosis. The present study investigated the link between microRNA-378a (miR-378a) expression and the sensitivity of hepatocellular carcinoma (HCC) and hepatoblastoma (HB) cancers to sorafenib therapy. miR-378a expression was determined in liver tissue samples from healthy candidates and patients with liver cancer using the reverse transcription-quantitative polymerase chain reaction. The antitumor effects of miR-378a alone and in combination with sorafenib were investigated in the HB cell line HepG2 and the HCC cell line SMMC-7721 with methyl thiazoyl tetrazolium, colony formation, flow cytometry and Transwell migration assays. The underlying mechanisms were investigated using western blot analysis. miR-378a expression was decreased in tissue samples from patients with liver cancer. HCC and HB cell line proliferation and invasion ability was inhibited by miR-378a. The combination of miR-378a and sorafenib provided the greatest inhibition. Western blot indicated that mitogen activated protein kinase signaling pathway proteins, vascular endothelial growth factor receptor, platelet derived growth factor receptor beta, Raf-1 proto-oncogene, serine/threonine kinase and matrix metallopeptidase 2 were regulated by miR-378a alone and to a greater extent when combined with sorafenib. Results suggest that miR-378a can inhibit liver cancer cell growth and enhance the sensitivity of liver cancer cells to sorafenib-based chemotherapies. PMID- 29328400 TI - MicroRNA-146a/NAPDH oxidase4 decreases reactive oxygen species generation and inflammation in a diabetic nephropathy model. AB - The present study investigated the role of microRNA (miR)-146a in a diabetic nephropathy (DN) model, and its molecular mechanism. DN mice were given intraperitoneal injections of streptozotocin (55 mg/kg/day) for 5 consecutive days as an in vivo DN model. The HK-2 human kidney cell line were exposed to 45% D-glucose as an in vitro DN model. Firstly, it was demonstrated that miR-146a expression was inhibited and NAPDH oxidase 4 (Nox4) was increased in DN mice. In HK-2 cells, overexpression of miR-146a inhibited Nox4 protein expression and decreased reactive oxygen species (ROS) generation, oxidative stress and inflammation, and suppressed vascular cell adhesion molecule-1 (VCAM-1) and intracellular adhesion molecule-1 (ICAM-1) protein expression. Nacetylcysteine, a Nox4 inhibitor, was demonstrated to inhibit ROS generation, suppress VCAM-1 and ICAM-1 protein expression, and decrease oxidative stress and inflammation in HK-2 cells following overexpression of miR-146a. In conclusion, these results indicated that miR-146a/Nox4 decreases ROS generation and inflammation and prevents DN. Therefore, miR-146a may represent a novel anti-inflammatory and oxidative modulator of DN. PMID- 29328401 TI - Long non-coding RNA MEG3 functions as a tumour suppressor and has prognostic predictive value in human pancreatic cancer. AB - Long non-coding RNA (lncRNA) MEG3 has been demonstrated to be a tumour suppressor in many malignancies. However, the functional role of MEG3 in pancreatic cancer (PC) is unclear. In this study, the expression pattern of MEG3 was evaluated in 25 samples of microdissected PC tissues and 8 PC cell lines and was compared to the expression in adjacent non-cancerous tissues and a human pancreatic normal epithelial cell line. Loss of MEG3 expression was observed in both the cancerous tissues and cancer cell lines. Although the absence of expression of MEG3 was not statistically correlated to either histological grade or TNM stage in the 25 cases, the prognosis was significantly worse. MEG3 knockdown enhanced cell proliferation, promoted cell migration and invasion, induced epithelial mesenchymal transition (EMT), increased the sphere-forming ability and cancer stem cell (CSC) properties, and decreased the chemosensitivity to gemcitabine in vitro. In contrast, forced expression of MEG3 resulted in a reverse effect. In conclusion, MEG3 functions as a tumour suppressor in human PC. The underlying cause of the poor prognosis induced by low levels of MEG3 expression in PC patients might involve EMT induction, enhanced CSC phenotypes and reduced chemoresistance, all of which might be associated with Snail activation. PMID- 29328403 TI - Arcuate nucleus neurons are not essential for the preprandial peak in plasma ghrelin after neonatal monosodium glutamate treatment. AB - The aim of the present study was to determine whether arcuate nucleus (ARC) lesions affect the ghrelin level in the plasma and the stomach in monosodium glutamate (MSG)-treated mice. The aim of the present study was to investigate whether the ARC was destroyed in mice treated neonatally with MSG, and whether the ARC lesions affect the ghrelin level in the plasma and lipid mobilization in MSG-treated mice. The results revealed that MSG led to a marked reduction in ARC cresyl violet staining, tyrosine hydroxylase-immunoreactive (IR) neurons and neuropeptide Y-IR fibers, compared with saline controls. MSG-treated mice exhibited significantly increased body mass compared with saline controls, and MSG treatment did not prevent food deprivation-induced decrease in white adipose tissue mass compared with controls. Plasma ghrelin levels were significantly increased in MSG-treated mice that were fasted for 48 h, compared with the levels prior to fasting and re-feeding, and the preprandial peak of plasma ghrelin persisted in MSG-treated mice. In summary, the ARC was not found to be essential for food deprivation-induced lipid mobilization and preprandial peak in MSG treated mice. However, this finding does not mean that ARC neurons do not contribute to food sensing and lipid mobilization under normal conditions, as compensatory mechanisms may have emerged after the ablation of ARC neurons. PMID- 29328402 TI - miR-203-3p participates in the suppression of diabetes-associated osteogenesis in the jaw bone through targeting Smad1. AB - Certain microRNAs (miRs) have important roles in the maintenance of bone development and metabolism, and a variety of miRs are known to be deregulated in diabetes. The present study investigated the role of miR-203-3p in the regulation of bone loss by assessing jaw bones of a rat model of type 2 diabetes. The results indicated that miR-203-3p inhibited osteogenesis in the jaws of diabetic rats and in rat bone marrow mesenchymal stem cells cultured in high-glucose medium. A luciferase re-porter assay was used to verify the bioinformatics prediction that miR-203-3p targets the 3'-untranslated region of Smad1, which is an important mediator of the bone morphogenetic protein (BMP)/Smad pathway. Overexpression of Smad1 attenuated the miR-203-3p-mediated suppres-sion of osteogenic differentiation. It was therefore indicated that the BMP/Smad pathway is attenuated and the transforming growth factor-beta/activin pathway is promoted by Smad1 reduction. Taken together, it was indicated that miR-203-3p inhibits osteogenesis in jaw bones of diabetic rats by targeting Smad1 to inhibit the BMP/Smad pathway. PMID- 29328404 TI - Chronic oxymatrine treatment induces resistance and epithelial-mesenchymal transition through targeting the long non-coding RNA MALAT1 in colorectal cancer cells. AB - A major reason for colorectal cancer (CRC) chemoresistance is the enhanced migration and invasion of cancer cells, such as the cell acquisition of epithelial-mesenchymal transition (EMT). Long non-coding RNA (lncRNA) metastasis associated lung adenocarcinoma transcript 1 (MALAT1) has been considered as a pro oncogene in multiple cancers. However, the precise functional mechanism of lncRNA MALAT1 in chemoresistance and EMT is not well known. In the present study, we focused on the effect of oxymatrine on CRC cells and further investigated the role of MALAT1 in oxymatrine-induced resistance and EMT process. The human CRC cell line HT29 was exposed to increasing doses of oxymatrine to establish stable cell lines resistant to oxymatrine. The established HT29 oxymatrine resistant cells showed an EMT phenotype including specific morphologic changes, enhanced migratory and invasive capacity, and downregulation of E-cadherin protein expression. Subsequently, high-throughput HiSeq sequencing and RT-qPCR showed that lncRNA MALAT1 was significantly upregulated in the oxymatrine resistant cells (P<0.01), while knockdown of MALAT1 partially reversed the EMT phenotype in HT29 resistant cells. Furthermore, oxymatrine treatment suppressed the migration and invasion ability of CRC cells, however, this effect was significantly reversed by overexpression of MALAT1. Finally, we investigated the clinical role of MALAT1 and found that high lncRNA MALAT1 expression level is associated with poor prognosis in CRC patients receiving oxymatrine treatment (P<0.01). In conclusion, we demonstrate that lncRNA MALAT1 is a stimulator for oxymatrine resistance in CRC and it may provide therapeutic and prognostic information for CRC patients. PMID- 29328407 TI - Estrogen receptor beta1 activation accelerates resistance to epidermal growth factor receptor-tyrosine kinase inhibitors in non-small cell lung cancer. AB - Non-small cell lung cancer (NSCLC) is one of the leading causes of cancer-related deaths worldwide. Epidermal growth factor receptor-tyrosine kinase inhibitors (EGFR-TKIs) have revolutionized the treatment of patients with advanced EGFR mutant NSCLC. However, drug resistance eventually develops in the majority of patients despite an excellent initial response. The present study aimed to investigate the mechanism of acquired resistance to EGFR-TKIs and to explore strategies to overcome the resistance to EGFR-TKIs from a gender perspective. PC9 and Hcc827 cell lines, sensitized to EGFR-TKI, and secondary TKI-resistant PC9-ER (erlotinib resistant) and Hcc827-ER cell lines were evaluated for the expression of ERbeta1. The proliferative ability of both cell lines was analyzed after transfection of siRNA-ERbeta1 using Cell Counting Kit-8 and colony formation assays. Extracellular signal-regulated protein kinases 1 and 2 (ERK1/2) and Akt activation were detected. The co-inhibition efficiency of erlotinib and fulvestrant was analyzed in PC9-ER xenografts. The expression of ERbeta1 was investigated in tumor tissues of EGFR-TKI-treated patients, and its correlation with clinicopathological factors and progression-free survival (PFS) was assessed. The expression of ERbeta1 was upregulated secondary to EGFR-TKIs in PC9 and Hcc827 cell lines, with beta-estradiol dependence. Both PC9-ER and Hcc827-ER cell lines were re-sensitized to erlotinib after downregulation of the expression of ERbeta1. ERK1/2 and Akt pathways were activated following the silencing of the expression of ERbeta1 in PC9-ER and Hcc827 cell lines. The co-treatment of erlotinib and fulvestrant exhibited better growth inhibitory efficiency compared with the treatment of each agent alone in PC9-ER-derived xenografts. Primary NSCLC samples of 53 patients treated with EGFR-TKIs were analyzed. ERbeta1 was highly expressed, and the strong expression of cytoplasmic ERbeta1 was related to a shorter PFS. In conclusion, ERbeta1 was activated in EGFR-TKI secondary resistance. The downregulation of ERbeta1 sensitized the cells to EGFR-TKIs. ERbeta1 may be a key molecule in EGFR-TKI therapy. In addition, anti-ERbeta1 treatment may reverse TKI resistance. PMID- 29328406 TI - miR-141 inhibits prostatic cancer cell proliferation and migration, and induces cell apoptosis via targeting of RUNX1. AB - Prostate cancer (PCa) is the most commonly diagnosed male malignancy and the second leading cause of male cancer-related deaths. miR-141 has been demonstrated to be inversely correlated with tumorigenicity. In the present study, we investigated the effect of miR-141 and runt-related transcription factor 1 (RUNX1) on PCa cells. We determined that miR-141 was expressed at a low level and RUNX1 was expressed at a high level in PCa tissues in comparison to that in adjacent normal tissues. Upregulation of miR-141 significantly inhibited cell growth, migration and invasion, and promoted cell apoptosis in PCa cells. Furthermore, miR-141 overexpression suppressed the expression of MMP-2 and MMP-9, and increased the expression of FOXO1 and p21. However, overexpression of RUNX1 could antagonize the effects of miR-141 on PCa cells. Our findings demonstrated that miR-141 could suppress cell growth, migration and invasion and induce cell apoptosis by targeting RUNX1 in PCa cells. Thus, miR-141/RUNX1 play critical roles in the progression of PCa and may be promising targets for the diagnosis and treatment of PCa. PMID- 29328405 TI - Liraglutide repairs the infarcted heart: The role of the SIRT1/Parkin/mitophagy pathway. AB - Liraglutide is glucagon-like peptide-1 receptor agonist used for treating patients with type 2 diabetes mellitus. The present study aimed to investigate the role and mechanism of liraglutide in repairing the infarcted heart following myocardial infarction. The results of the present study demonstrated that amplification of the dose of liraglutide for ~28 days was able to reduce cardiac fibrosis, inflammatory responses and myocardial death in the post-infarcted heart. In vitro, liraglutide protected cardiomyocyte mitochondria against the chronic hypoxic damage, inhibiting the mitochondrial apoptosis pathways. Mechanistically, liraglutide elevated the expression of NAD-dependent protein deacetylase sirtuin-1 (SIRT1), which increased the expression of Parkin, leading to mitophagy activation. Protective mitophagy reversed cellular adenosine 5' triphosphate production, reduced cellular oxidative stress and balanced the redox response, sustaining mitochondrial homeostasis. Notably, following blockade of glucagon-like peptide 1 receptor or knockdown of Parkin, the beneficial effects of liraglutide on mitochondria disappeared. In conclusion, the results of the present study illustrated the protective role of liraglutide in repairing the infarcted heart via regulation of the SIRT1/Parkin/mitophagy pathway. PMID- 29328409 TI - Alpha gene upregulates TFEB expression in renal cell carcinoma with t(6;11) translocation, which promotes cell canceration. AB - Renal cell carcinoma (RCC) with t(6;11) translocation has been characterized by the fusion of the Alpha gene with the TFEB gene. However, the underlying molecular mechanisms remain greatly uncharacterized and effective targeted therapy has yet to be identified. In this study, we examined the role of the Alpha gene in this tumor entity and the function of the fusion gene Alpha-TFEB product in vitro and in vivo. Our results revealed that the luciferase activity of Alpha1, Alpha2, Alpha3, Alpha4 and Alpha5 significantly increased compared with that of the pGL3-Basic group (P<0.01). The luciferase activity also increased significantly in the Alpha1, Alpha2 and Alpha5 groups compared with that of the normal TFEB gene group (P<0.01). In addition, the luciferase activity of Alpha5 was the strongest located in the 643-693 base sequence. The stable transfection of Alpha-TFEB into HK-2 and CaKi-2 cells promoted the expression of Alpha-TFEB mRNA and TFEB protein. Furthermore, the overexpression of TFEB increased cell proliferation and enhanced the cell invasive ability, and decreased cell apoptosis in the Alpha-TFEB stably transfected cells in vitro. In vivo experiments revealed that the overexpression of TFEB promoted tumorigenicity in nude mice, which was consistent with our in vitro results. On the whole, these data indicate that the overexpression of TFEB confers a potent oncogenic signal and may thus be a novel therapeutic target in RCC with t(6;11) translocation. PMID- 29328408 TI - Genistein attenuates di-(2-ethylhexyl) phthalate-induced testicular injuries via activation of Nrf2/HO-1 following prepubertal exposure. AB - Di-(2-ethylhexyl) phthalate (DEHP) and genistein (GEN) are of the most common endocrine disrupting chemicals (EDCs) present in the environment or the diet. However, investigation of the effects of acute exposure to these two EDCs during prepuberty has been lacking. In this study, DEHP and GEN were administrated to prepubertal male Sprague-Dawley rats by gavage from PND22 to PND35 with vehicle control, GEN 50 mg/kg body weight (bw)/day, DEHP50, 150 and 450 mg/kg bw/day, and combined treatment. Reproductive parameters including testis weight, anogenital distance and organ coefficient were evaluated on PND36. Enzyme activity involved in the regulation of testicular redox state as well as expression of genes and proteins related to anti-oxidative ability and apoptosis were also investigated. The results revealed that by PND36, DEHP treatment had significantly decreased the testis weight, organ coefficient, testicular anti-oxidative enzyme activities and caused tubular vacuolation; however, co-administration of GEN partially alleviated DEHP-induced testicular injuries and enhanced testicular anti oxidative enzyme activities and upregulated the expression of NF-E2 related factor 2 and heme oxygenase-1, which indicated that GEN partially attenuated DEHP induced male reproductive system damage through anti-oxidative action following acute prepubertal exposure to DEHP. Thus, GEN may have use in attenuating the damaging effects of other EDCs that lead to reproductive disorders. PMID- 29328410 TI - CLDN5 affects lncRNAs acting as ceRNA dynamics contributing to regulating blood brain barrier permeability in tumor brain metastasis. AB - The blood-brain barrier (BBB) constitutes an efficient organization of tight junctions that limits the delivery of tumor to the brain. The principal tight junction protein in BBB is claudin-5 (CLDN5), but its mechanism of action remains largely unknown. Long non-coding RNAs (lncRNAs) are aberrantly expressed in many cancers, some lncRNAs play key roles in regulating BBB permeability and are involved in tumor brain metastasis. In particular, lncRNAs can function as competing endogenous RNAs (ceRNAs). Herein, we investigated whether ceRNA dysregulation is associated with alterations of the level of CLDN5 in human brain vascular endothelial hCMEC/D3 cells. The Affymetrix Human Transcriptome Array 2.0 and Affymetrix GeneChip miRNA 4.0 Array were used to detect the expression levels of 2,578 miRNAs, 22,829 lncRNAs, and 44,699 mRNAs in pLL3.7-CLDN5-transfected and pLL3.7 control hCMEC/D3 cells. The distinctly expressed miRNAs, lncRNAs, and mRNAs were subjected to construction of miRNA-lncRNA-mRNA interaction network. A total of 41 miRNAs, 954 lncRNAs, and 222 mRNAs were found to be differentially expressed between the CLDN5-overexpressing and control group. 148 lncRNA acting as ceRNAs were identified based on the miRNA-lncRNA-mRNA interaction network. The function of differential mRNA in the network was determined by GO and pathway analysis. The potential roles of the 27 ceRNAs were revealed, the possible biology functions of these regulatory ceRNAs mainly included tight junction, focal adhesion, cell-cell adhesion, cell growth and apoptosis. The identified sets of miRNAs, lncRNAs and mRNAs specific to CLDN5-overexpressing hCMEC/D3 cells were verified by quantitative real-time RT-PCR experiment. Our study predicts the biological functions of a multitude of ceRNAs associated with the alteration of CLDN5 in brain vascular endothelial cells. Our data suggest that these dysregulated ceRNAs, in conjunction with the high CLDN5 levels, could serve as useful targets of prevention of brain metastasis formation. Further studies are warranted to determine the role of these ceRNAs in facilitating the function of CLDN5 in brain-tumor barrier. PMID- 29328411 TI - DNA methylation enzyme inhibitor RG108 suppresses the radioresistance of esophageal cancer. AB - Esophageal cancer (EC) is the eighth most common highly aggressive cancer worldwide. The purpose of this study was to investigate the effect of the DNA methyltransferase inhibitor RG108 on the radiosensitivity of EC cells. MTT and clonogenic assays were performed to assess the effect of RG108 on the proliferation and radiosensitivity of Eca-109 and TE-1 human EC cells. The cell cycle progression and alterations in apoptosis were analyzed by flow cytometry. For the in vivo analysis, the Eca-109 cells were inoculated into nude mice to establish tumors. Tissues from xenografts were obtained to detect changes to microvessels and tumor growth by immunohistochemistry (IHC). RNA-seq was used to identify differentially expressed genes. We found that RG108 increased the radiosensitivity of EC cells. Apoptosis and G2/M-phase arrest were induced by X ray irradiation and were significantly enhanced by RG108. In addition, growth of tumor xenografts from the Eca-109 cells was significantly inhibited by irradiation in combination with RG108. The RNA-seq analysis revealed that, compared with radiation alone, X-ray irradiation in combination with RG108 altered the expression of 121 genes in multiple pathways, including the TGF-beta signaling pathway and the Epstein-Barr virus infection pathway. In conclusion, RG108 induced radiosensitivity in EC cells both in vitro and in vivo. PMID- 29328412 TI - Therapeutic efficacy of cyclosporin A against spinal cord injury in rats with hyperglycemia. AB - The present study aimed to explore the therapeutic effects of cyclosporin A (CsA) on spinal cord injury (SCI) in rats with hyperglycemia and to identify a novel potential method to treat SCI in the presence of hyperglycemia. Female Sprague Dawley (SD) rats were randomly allocated into four groups: Sham, SCI, SCI+hyperglycemia and SCI+hyperglycemia+CsA groups. Streptozotocin-induced hyperglycemic SD rats and a weight-drop contusion SCI model were established. The Basso, Beattie, Bresnahan scale and inclined plane test were used to evaluate the neurological function of the rats. Flow cytometric assay was performed to detect the apoptotic rates of cells in the spinal cord. ELISA and western blot analysis were performed to determine the levels of interleukin (IL)-10, tumor necrosis factor (TNF)-alpha, cyclophilin-D (Cyp-D) and apoptosis-inducing factor (AIF). The results demonstrated that CsA significantly improved the neurological function of the SCI rats with hyperglycemia. CsA markedly reduced the number of apoptotic cells exaggerated by hyperglycemia in the spinal cord of the SCI rats. CsA significantly decreased the expression levels of IL-10, TNF-alpha, Cyp-D and AIF in the spinal cord of the SCI rats. Overall, the present study revealed a significant role of CsA in the treatment of SCI in the presence of hyperglycemia by inhibiting the apoptosis of spinal cord cells. PMID- 29328413 TI - Prevalence of the CYP2C19*2 (681 G>A), *3 (636 G>A) and *17 (-806 C>T) alleles among an Iranian population of different ethnicities. AB - Polymorphisms in the cytochrome P (CYP) 450 family may cause adverse drug responses in individuals. Cytochrome P450 2C19 (CYP2C19) is a member of the CYP family, where the presence of the 681 G>A, 636 G>A and 806 C>T polymorphisms result in the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles, respectively. In the current study, the frequency of the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles in an Iranian population cohort of different ethnicities were examined and then compared with previously published frequencies within other populations. Allelic and genotypic frequencies of the CYP2C19 alleles (*2, *3 and *17) were detected using polymerase chain reaction (PCR)-restriction fragment length polymorphism analysis, PCR-single-strand conformation polymorphism analysis and DNA sequencing from blood samples of 1,229 unrelated healthy individuals from different ethnicities within the Iranian population. The CYP2C19 allele frequencies among the Iranian population were 21.4, 1.7, and 27.1% for the CYP2C19*2, CYP2C19*3 and CYP2C19*17 alleles, respectively. The frequency of the homozygous A/A variant of the CYP2C19*2 allele was significantly high and low in the Lur (P<0.001) and Caspian (P<0.001) ethnicities, respectively. However, the frequency of the homozygous A/A variant of the CYP2C19*3 allele was not detected in the Iranian cohort in the current study. The frequency of the heterozygous G/A variant of the CYP2C19*3 allele had the significantly highest and lowest frequency in the Fars (P<0.001) and Lur (P<0.001) groups, respectively. The allele frequency of the homozygous T/T variant of the CYP2C19*17 allele was significantly high in the Caspian (P<0.001) and low in the Kurd (P<0.05) groups. The frequency of the CYP2C19 alleles involved in drug metabolism, may improve the clinical understanding of the ethnic differences in drug responses, resulting in the advancement of the personalized medicine among the different ethnicities within the Iranian population. PMID- 29328414 TI - MALAT1 enhanced the proliferation of human osteoblasts treated with ultra-high molecular weight polyethylene by targeting VEGF via miR-22-5p. AB - Osteolysis associated with an implanted prosthesis is the major cause of failure in prosthesis implantation, and a severe public health issue worldwide. The type of bone metabolism associated with this disorder has been a major focus for improving the outcomes of patients with osteolysis. The role of metastasis associated lung adenocarcinoma transcript 1 (MALAT1; a member of the long coding RNA family) during the onset of osteolysis and the related molecular regulatory mechanism in ultra-high molecular weight polyethylene (UHMWPE)-treated hFOB 1.19 cells were investigated in the current study. The effect of MALAT1 knockdown on cell viability, cell apoptosis and osteolysis-associated signaling were also examined, and the interactions that occurred between MALAT1 and an anti osteolysis molecule, microRNA (miR)-22-5p were investigated. Additionally, knockdown of vascular endothelial growth factor (VEGF) exerted similar biological effects as observed following miR-22-5p overexpression. The data showed that MALAT1 and pro-osteolysis indicators, receptor activator of nuclear factor-kappaB ligand (RANKL) and VEGF were upregulated in clinical interface membrane samples. Knockdown of MALAT1 inhibited the growth of UHMWPE-treated hFOB 1.19 cells, and this effect was associated with the upregulation of OPG, and downregulation of RANKL and VEGF. Results of a dual luciferase assay confirmed the interaction between VEGF and miR-22-5p, and also between MALAT1 and miR-22-5p. Additionally, subsequent assays indicated that overexpression of MALAT1 suppressed the anti osteolysis effect of miR-22-5p, which would further induce VEGF expression. The data indicated that MALAT1 has an in port ant role in the onset of osteolysis via its ability to induce RANKL expression and inhibit the effect of miR-22-5p. PMID- 29328416 TI - Endotoxin tolerance induced by lipopolysaccharide preconditioning protects against surgery-induced cognitive impairment in aging mice. AB - Postoperative cognitive dysfunction (POCD) is a clinical syndrome characterized by varying degrees of cognitive functional decline in patients following major surgery. Inflammation and a dysregulated innate immune system exert broad effects in the periphery and central nervous system, yet the mechanisms underlying POCD remain poorly understood and without effective therapy. It has been reported that modulation of the dysregulated inflammatory response with low-dose lipopolysaccharide (LPS) preconditioning, a phenomenon additionally referred to as endotoxin tolerance, has the potential to reduce neuroinflammation, blood brain barrier disruption, and cognitive impairment in a number of disease states. Therefore, it was hypothesized that endotoxin tolerance induced by LPS preconditioning may protect against surgery-induced cognitive impairment in aging mice. Using a mouse model of surgery-induced cognitive decline, the present study demonstrated that exploratory laparotomy caused a significant impairment in hippocampal-dependent memory. Notably, one application of low-dose LPS preconditioning at 24 h prior to surgery improved the cognitive impairment and abolished the signs of neuroinflammation in the hippocampus following surgery. However, LPS injection at 6 h or immediately prior to surgery did not confer such beneficial effects, suggesting that the effects of LPS-induced endotoxin tolerance may depend on the time of application. In conclusion, the results of the present study suggested that low-dose LPS preconditioning may markedly alleviate surgery-induced neuroinflammation and cognitive impairment in aging mice, which may provide a novel approach to preventing POCD and, potentially, other forms of memory impairment. PMID- 29328415 TI - Role of catalpol in ameliorating the pathogenesis of experimental autoimmune encephalomyelitis by increasing the level of noradrenaline in the locus coeruleus. AB - The endogenous neurotransmitter, noradrenaline, exerts anti-inflammatory and neuroprotective effects in vivo and in vitro. Reduced noradrenaline levels results in increased inflammation and neuronal damage. The primary source of noradrenaline in the central nervous system is tyrosine hydroxylase (TH)-positive neurons, located in the locus coeruleus (LC). TH is the rate-limiting enzyme for noradrenaline synthesis; therefore, regulation of TH protein expression and intrinsic enzyme activity represents the central means for controlling the synthesis of noradrenaline. Catalpol is an iridoid glycoside purified from Rehmannia glutinosa Libosch, which exerts a neuroprotective effect in multiple sclerosis (MS). The present study used an experimental mouse model of autoimmune encephalomyelitis to verify the neuroprotective effects of catalpol. Significant improvements in the clinical scores were observed in catalpol-treated mice. Furthermore, catalpol increased TH expression and increased noradrenaline levels in the spinal cord. In primary cultures, catalpol exerted a neuroprotective effect in rat LC neurons by increasing the noradrenaline output. These results suggested that drugs targeting LC survival and function, including catalpol, may be able to benefit patients with MS. PMID- 29328417 TI - MicroRNA-129-5p suppresses cell proliferation, migration and invasion via targeting ROCK1 in osteosarcoma. AB - Osteosarcoma (OS) is the most common primary malignancy of the bone in teenagers and accounts for 20-35% of all malignant primary bone tumors. Increasing evidence shows that microRNAs (miRNAs) are abnormally expressed in several types of human cancer. miRNAs are necessary to maintain the malignant phenotype of cancer cells and can function as either tumor suppressors or oncogenes. The present study aimed to measure the expression of miRNA-129-5p (miR-129-5p) in OS, determine the effects of miR-129-5p on the malignant behaviors of OS cells, and elucidate the molecular mechanism underlying the oncogenesis and progression of OS. The expression levels of miR-129-5p in OS tissues and cell lines were measured using reverse transcription-quantitative polymerase chain reaction (RT-qPCR) analysis. SAOS-2 and U2OS cells were then transfected with miR-129-5p mimics or miR negative control. The effects of miR-129-5p on the proliferation, migration and invasion of SAOS-2 and U2OS cells in vitro were then evaluated using 3-(4,5 dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, Transwell migration assay and invasion assays, respectively. In addition, bioinformatics analysis, a luciferase reporter assay, and RT-qPCR and western blot analyses were used to examine whether Rho-associated protein kinase 1 (ROCK1) was a direct target of miR-129-5p. The mRNA expression of ROCK1 in OS tissues was detected using RT-qPCR analysis, and the biological roles of ROCK1 in OS cells were also evaluated. The results showed that miR-129-5p was significantly downregulated in the OS tissues and cell lines. The re-expression of miR-129-5p suppressed the cell proliferation, migration and invasion of OS cells. In addition, ROCK1 was confirmed as a direct target of miR-129-5p. The mRNA expression of ROCK1 was high in OS tissues and inversely correlated with the expression of miR-129-5p. The downregulation of ROCK1 inhibited the proliferation, migration and invasion of OS cells. These findings suggested that miR-129-5p inhibited cell proliferation, migration and invasion in the development of OS via the negative regulation of ROCK1. The miR-129-5p/ROCK1 axis may serve as an efficient target in cancer therapy. PMID- 29328418 TI - microRNA-3941 targets IGF2 to control LPS-induced acute pneumonia in A549 cells. AB - The present study aimed to investigate the potential roles and regulatory mechanism of microRNA (miR)-3941 in lipopolysaccharides (LPS)-induced acute pneumonia. The expression of miR-3941 in child patients with acute pneumonia was detected and A549 cells were treated with LPS to establish the cellular model of acute pneumonia. The effects of miR-3941 in LPS-induced cell injury were investigated by assessing cell viability, apoptosis and inflammation. In addition, the regulatory relationship between miR-3941 and insulin-like growth factor 2 (IGF2) was explored, as well as the association between miR-3941 and the phosphatidylinositol-4,5-bisphosphate 3-kinase/protein kinase B (PI3K/AKT) pathway. miR-3941 was significantly down-regulated in patients with acute pneumonia (P<0.01). In the cell model of acute pneumonia, LPS treatment significantly induced cell injury via inhibiting cell viability (P<0.05 or P<0.01), inducing cell apoptosis (P<0.01) and enhancing the production of cytokines [interleukin (IL)-6, IL-8 and tumor necrosis factor-alpha; P<0.01 or P<0.001]. LPS treatment also resulted in a significantly decreased expression of miR-3941 in A549 cells (P<0.01) and the overexpression of miR-3941 significantly alleviated LPS-induced cell injury (P<0.05). In addition, IGF2 was confirmed as a direct target gene of miR-3941. Knockdown of IGF2 significantly alleviated LPS induced cell injury (P<0.05, P<0.01 or P<0.001), which was significantly reversed by suppression of miR-3941 (P<0.05, P<0.01 or P<0.001). Furthermore, inhibition of miR-3941 was demonstrated to activate the PI3K/AKT pathway, which was inhibited following knockdown of IGF2. The present study indicates that miR-3941 is downregulated in child patients with acute pneumonia and that downregulation of miR-3941 may promote LPS-induced cell injury in A549 cells via targeting IGF2 to regulate the activation of the PI3K/AKT pathway. Therefore, miR-3941 may be a potential therapeutic target for the treatment of acute pneumonia in child patients. PMID- 29328419 TI - Screening and clinical evaluation of dominant peptides of centromere protein F antigen for early diagnosis of hepatocellular carcinoma. AB - Tumor-associated antigens, such as centromere protein F (CENP-F), have been recognized as potential serological biomarkers for early diagnosis of hepatocellular carcinoma (HCC); however, the exact regions corresponding to the dominant peptides of CENP-F antigen remain to be explored. We aimed to screen and evaluate potential dominant peptides of CENP-F for early diagnosis of HCC. Dominant peptides of CENP-F were predicted by BioSun version 3.0, and the corresponding recombinant proteins were prepared. Enzyme-linked immunosorbent assays were conducted for initial screening of dominant peptides, and selected dominant peptides were subjected to further clinical evaluation. Eight dominant peptides of CENP-F antigens were predicted at amino acids (a.a) 121-220, 335-416, 1100-1265, 1670-1791, 1759-2093, 2075-2210, 2485-2592, and 2808-2960. Initial screening of the predicted peptides in samples of 47 HCC cases showed the highest diagnostic value for 121-220 a.a and 1670-1791 a.a peptides with area under the curve (AUC) values of 0.795 [95% confidence interval (CI), 0.706-0.884] and 0.809 (95% CI, 0.721-0.896), sensitivity of 58.3 and 85.4%, and specificity of 93.9 and 65.3%, respectively. Further evaluation of the two peptides in 405 samples comprised of 153 HCC, 126 liver cirrhosis and 126 healthy controls, presenting an AUC of 0.743 (95% CI, 0.674-0.812) for 121-220 a.a peptide in detecting early stage HCCs. Specifically, the 121-220 a.a peptide showed a complementary effect in combination with alpha-fetoprotein (AFP) for the detection of early-stage HCC with increased AUC value of 0.840 (95% CI, 0.781-0.899), and sensitivity of 81.4% and specificity of 72.2%. In conclusion, our study identified the 121-220 a.a dominant peptide as the region of CENP-F antigen with the highest immunogenicity and demonstrated its value in combination with AFP for diagnosis of early-stage HCC. PMID- 29328422 TI - L-mimosine induces caspase-9-mediated apoptosis in human osteosarcoma cells. AB - L-mimosine is a rare plant amino acid extracted from Mimosa or Leucaena spp., and it has been reported to exhibit antitumor activity in a number of types of cancer. However, the underlying mechanisms remain to be clarified. In the present study, the effect of L-mimosine was investigated in human osteosarcoma cells. A Cell Counting Kit-8 assay and flow cytometry were used for toxicity detection. Hoechst staining and transmission electron microscopy (TEM), in addition to western blot analysis, were used for the examination of the associated mechanisms. The results of the present study indicated that L-mimosine significantly inhibited cell proliferation by inducing cellular apoptosis in osteosarcoma cells. The Hoechst staining results and TEM revealed that nuclear damage increased with the concentration increase in L-mimosine, as did the formation of apoptotic bodies. Additionally, the results of the western blot analysis confirmed that the treatment of cells with L-mimosine was accompanied by increasing expression of cleaved caspase-9. L-mimosine-induced apoptosis was inhibited by the caspase-9 inhibitor Z-LEHD-FMK. In addition, the extracellular signal-regulated kinase (ERK) signaling pathway was suppressed following treatment with L-mimosine. In conclusion, the results of the present study suggested that L-mimosine induced apoptosis via the mitochondrial apoptotic pathway. The ERK signaling pathway was indicated to be an additional mechanism underlying apoptosis induction. The results provided evidence for the use of L mimosine as a promising candidate for osteosarcoma therapy. PMID- 29328420 TI - Ginsenoside Rg3 inhibits keloid fibroblast proliferation, angiogenesis and collagen synthesis in vitro via the TGF-beta/Smad and ERK signaling pathways. AB - A wide range of therapeutic options exists for the treatment of keloids, all of which have their own strengths; however, a high risk of side-effects and frequent recurrence remains. Therefore, the present study aimed to identify improved therapeutic approaches or drugs for the treatment of keloids. Ginsenoside Rg3 (Rg3) has been reported to exert numerous antitumor effects, thus indicating that Rg3 may be a potential therapeutic agent that targets keloids. The present study determined the effects of Rg3 on human keloid fibroblasts (KFs) in vitro, and further explored the associated molecular and cellular mechanisms. Keloid scar specimens were obtained from patients, aged between 22 and 35 years, without systemic diseases and primary cells were isolated from keloid tissues. In each assay, KFs were divided into three groups and were cultured in medium with or without various concentrations of Rg3 (50 or 100 ug/ml). Cell viability assay, flow cytometry, quantitative polymerase chain reaction, cell migration assay, immunofluorescence staining, western blot analysis, Transwell cell invasion assay and immunohistochemical analysis were used to analyze the KFs and keloid explant cultures. The results of the present study demonstrated that Rg3 was able to exert an inhibitory effect on the transforming growth factor-beta/Smad and extracellular signal-regulated kinase signaling pathways in KFs. The proliferation, migration, invasion, angiogenesis and collagen synthesis of KFs were markedly suppressed following treatment with Rg3. Furthermore, the results of an ex vivo assay indicated that Rg3 inhibited angiogenesis and reduced collagen accumulation in keloids. Significant statistical differences existed between the control and Rg3-treated groups (P<0.05). All of these experimental results suggested that Rg3 may serve as a reliable drug for the treatment of patients with keloids. PMID- 29328421 TI - Antitumor activity of curcumin by modulation of apoptosis and autophagy in human lung cancer A549 cells through inhibiting PI3K/Akt/mTOR pathway. AB - Curcumin is known to exhibit anticancer effects on various cancers with selective cytotoxicity in tumor cells. In the present study, the effects of curcumin induced multiple PCDs on human non-small cell lung cancer (NSCLC) cells and the potential molecular mechanisms of apoptosis and autophagy triggered by curcumin via the PI3K/Akt/mTOR signaling pathway were explored, further confirmed by co culture of curcumin with mTOR blocker rapamycin and PI3K/Akt inhibitor LY294002. The anti-proliferation effect of different stimulus was measured by MTT assay. Apoptosis was detected by flow cytometry. Autophagy induction was detected by MDC labeling and western blotting of Beclin1, LC3, and p62 expression. The mRNA and protein expression levels of Akt and mTOR were assayed by real-time fluorescence quantitative (qRT-PCR) technique and western blotting. Our results showed that curcumin inhibited the viability of A549 cells time- and dose-dependently. In addition, a dosage-dependent A549 cell apoptosis-induction phenomena was observed by the curcumin intervention. Moreover, obvious autophagy was induced after curcumin-treatment, characterized by the formation of fluorescent particles [autophagic vesicles (AVs)] and significant increase in ratio of LC3-II/LC3-I and Beclin1 as well as decreased p62 expression. Furthermore, the effect of curcumin on a substantial downregulation of phosphatidylinositol 3-kinase (PI3K)/Akt/mammalian target of rapamycin (mTOR) pathway was observed. It is worth noting that the inhibition of mTOR by rapamycin or of PI3K/Akt by LY294002 augmented curcumin-induced apoptosis and autophagy, leading to significant inhibition of cell proliferation. From these findings, it can be speculated that curcumin potently inhibit the cell growth of NSCLC A549 cells through inducing both apoptosis and autophagy by inhibition of the PI3K/Akt/mTOR pathway. These results support the potential use of curcumin as a novel candidate in treatment of human lung cancer. PMID- 29328423 TI - Cetuximab enhances cisplatin-induced endoplasmic reticulum stress-associated apoptosis in laryngeal squamous cell carcinoma cells by inhibiting expression of TXNDC5. AB - Cisplatin and cetuximab, an anti-epidermal growth factor receptor (EGFR) monoclonal humanized antibody, have been used for treatment of laryngeal squamous cell carcinoma (LSCC). It has been demonstrated that cisplatin and inhibition of EGFR signaling may induce endoplasmic reticulum (ER) stress-associated apoptosis. However, ER protein thioredoxin domain-containing protein 5 (TXNDC5) reportedly protects cells from ER stress-associated apoptosis. The present study investigated the interaction between cisplatin, cetuximab and TXNDC5 on ER stress associated apoptosis in LSCC cells. AMC-HN-8 human LSCC cells with or without TXNDC5 overexpression or knockdown were treated with cisplatin (5, 10, 20 and 40 uM) and/or cetuximab (10, 50, 100 and 150 ug/ml), for 12, 24, 36 and 48 h. Cisplatin and cetuximab concentration- and time-dependently increased and decreased the expression of TXNDC5 in AMC-HN-8 cells, respectively. Knockdown of TXNDC5 markedly augmented cisplatin-induced levels of CCAAT/enhancer-binding protein homologous protein (CHOP), caspase-3 activity and apoptosis; while overexpression of TXNDC5 largely eliminated cetuximab-induced levels of CHOP, caspase-3 activity and apoptosis. Cisplatin and cetuximab demonstrated a combinatorial effect on increasing the levels of CHOP, caspase-3 activity and apoptosis, which was largely eliminated by overexpression of TXNDC5 or a reactive oxygen species (ROS) scavenger/antagonist. In addition, promoter/luciferase reporter assays revealed that cisplatin and cetuximab regulated the expression of TXNDC5 at the gene transcription/promoter level. In conclusion, the findings suggested that ER stress-associated apoptosis is a major mechanism underlying the apoptotic effect of cisplatin and cetuximab on LSCC cells; cetuximab enhanced cisplatin-induced ER stress-associated apoptosis in LSCC cells largely by inhibiting the expression of TXNDC5 and thereby increasing ROS production; cisplatin and cetuximab had stimulatory and inhibitory effects on the TXNDC5 gene promoter, respectively. The present study offered novel insights into the pharmacological effects of cisplatin and cetuximab on LSCC. It also suggested that TXNDC5 may be a potential therapeutic target for LSCC. PMID- 29328424 TI - Vitexin induces G2/M-phase arrest and apoptosis via Akt/mTOR signaling pathway in human glioblastoma cells. AB - Glioblastoma is a common primary brain tumor with aggressive malignancy, which results in poor outcomes, short survival time and high mortality. Vitexin, an active ingredient from natural products, has been reported to inhibit cell growth and induce cell apoptosis in various cancer cell lines including hepatocellular carcinoma, oral and esophageal cancer. To the best of the authors knowledge, the present study was the first to investigate anticancer effects of vitexin on human glioblastoma cells and potential underlying mechanisms. The present study demonstrated that vitexin inhibited cell viability in a dose- and time-dependent manner. In the present study, vitexin induced G2/M cell cycle arrest, as demonstrated by flow cytometry. Induction of cell apoptosis following vitexin treatment, was further indicated by observation of morphological alterations, flow cytometry analysis and detection of cleaved-poly (ADP-ribose) polymerase. The present study also demonstrated that vitexin inhibited RAC-alpha serine/threonine-protein kinase (Akt)/mechanistic target of rapamycin kinase (mTOR) signaling in human glioblastoma cells. Collectively, the results of the present study demonstrated that vitexin induced G2/M cell cycle arrest and apoptosis by inhibiting Akt/mTOR signaling in human glioblastoma cells. Vitexin may in the future be used as a therapeutic agent for treatment of malignant glioblastoma. PMID- 29328425 TI - Bioinformatics analysis of the CDK2 functions in neuroblastoma. AB - The present study aimed to elucidate the potential mechanism of cyclin-dependent kinase 2 (CDK2) in neuroblastoma progression and to identify the candidate genes associated with neuroblastoma with CDK2 silencing. The microarray data of GSE16480 were obtained from the gene expression omnibus database. This dataset contained 15 samples: Neuroblastoma cell line IMR32 transfected with CDK2 shRNA at 0, 8, 24, 48 and 72 h (n=3 per group; total=15). Significant clusters associated with differentially expressed genes (DEGs) were identified using fuzzy C-Means algorithm in the Mfuzz package. Gene ontology and pathway enrichment analysis of DEGs in each cluster were performed, and a protein-protein interaction (PPI) network was constructed. Additionally, functional annotation of DEGs in clusters was performed for the detection of transcription factors and tumor-associated genes. A total of 4 clusters with significant change tendency and 1,683 DEGs were identified. The hub nodes of the PPI network constructed by DEGs in Cluster 1, Cluster 2, Cluster 3 and Cluster 4 were MDM2 oncogene, E3 ubiquitin protein ligase (MDM2), cyclin-dependent kinase 1 (CDK1), proteasome (prosome, macropain) 26S subunit, non-ATPase, 14 (PSMD14) and translocator protein (18 kDa) (TSPO) respectively. These genes were significantly enriched in the p53 signaling pathway, cell cycle, proteasome and systemic lupus erythematosus pathways. MDM2, CDK1, PSMD14 and TSPO may be key target genes of CDK2. CDK2 may have key functions in neuroblastoma progression by regulating the expression of these genes. PMID- 29328426 TI - Relaxant and vasoprotective effects of ginger extracts on porcine coronary arteries. AB - Ginger (Zingiber officinale Roscoe) is a popular Chinese herbal medicine, which is considered to warm the stomach and dispel cold in traditional Chinese medicine. Ginger is widely used to treat stomach disorders, and it has been reported to exhibit antithrombotic activity via the inhibition of platelet aggregation and thromboxane B2 production in vitro. Cardiovascular disease is associated with the aberrant functioning of the heart and circulatory system; the relatively narrow vessels of the circulation are commonly affected and blocked by atherosclerosis, which may result in angina or heart attack. Numerous drugs and medicines are used to treat myocardial infarction; however, they are often associated with numerous side effects. Therefore, it is important to identify substitutive drugs with no unbearable side effects. In the present study, the relaxant effects of ginger crude extract (GCE) were determined on porcine coronary arteries. The DPPH radical scavenging assay, lucigenin-enhanced chemiluminescence assay and western blot analysis were used to individually detect antioxidant assay of ginger extraction or superoxide anion produced by endothelial cells and molecular signaling. The results indicated that GCE induced relaxation of porcine coronary arteries in an endothelium-dependent manner. GCE increased vasoprotection via the suppression of nitric oxide synthase and cyclooxygenase. In addition, GCE possessed antioxidant ability, as determined using 1,1-diphenyl-2-picrylhydrazyl and lucigenin-enhanced chemiluminescence assays. Taken together, the present study demonstrated that GCE exerts marked vasoprotective effects and free radical-scavenging activities in porcine coronary arteries. PMID- 29328427 TI - miR-133b reverses cisplatin resistance by targeting GSTP1 in cisplatin-resistant lung cancer cells. AB - MicroRNAs play a critical role in chemoresistance and are implicated in various biological and pathological processes of cells. The objective of the present study was to explore the role of miR-133b and its mechanism in the regulation of cisplatin resistance and tumor progression in cisplatin-resistant non-small cell lung cancer (NSCLC) cells. Reverse transcription-quantitative polymerase chain reaction and western blot assays of the cisplatin-resistant cell lines A549/DPP and H1299/DDP displayed the reduced expression of miR-133b and increased expression of glutathione-S-transferase P1 (GSTP1) in the resistant cells compared with the respective parental cell lines A549 and H1299. Cell Counting kit-8, flow cytometry, colony formation and Transwell migration assays indicated that the overexpression of miR-133b increased the chemosensitivity to cisplatin and attenuated the proliferation and migration capacities of the cisplatin resistant NSCLC cell lines in vitro. A dual-luciferase reporter assay demonstrated that miR-133b negatively regulated the expression of GSTP1 by targeting its 3'-untranslated region. In addition, the knockdown of GSTP1 by transfection with small interfering RNA exerted similar effects on cell chemosensitivity, proliferation and migration as did ectopic miR-133b expression, in addition to the upregulation of Bax and downregulation of Bcl-2, survivin and matrix metalloproteinase expression. In conclusion, the present study findings provide the insights that miR-133b reduces cisplatin resistance and its overexpression contributes to the suppression of the malignant growth and aggressiveness of cisplatin-resistant NSCLC cells by targeting GSTP1. This could potentially be exploited as a novel therapeutic strategy for the reversal of cisplatin resistance. PMID- 29328428 TI - Regulation of drug resistance and metastasis of gastric cancer cells via the microRNA647-ANK2 axis. AB - Due to a lack of effective methods for early diagnosis, the majority of patients with gastric cancer (GC) are diagnosed during the late stages of the disease, which are often accompanied by metastasis. For these patients, despite being considered an important therapeutic modality in the treatment of cancer, chemotherapy is usually not effective due to multidrug resistance (MDR). The expression levels of MDR/metastasis-associated genes are regulated by numerous microRNAs (miRNAs/miRs). The expression of miR-647 in GC tissues and SGC7901/VCR cell line (drug resistance to vincristine) was detected by qRT-PCR. The effect of overexpression of miR-647 on drug resistance was evaluated by measuring the half maximal inhibitory concentration (IC50) value of SGC-7901/VCR to vincristine and tumor growth in vivo. Moreover, drug-induced cell apoptosis and cell cycle were evaluated by flow cytometry, as well as the ability of cell migration and invasiveness detected by wound healing and transwell assay. Furthermore, underlying targets of miR-647 were predicted by TargetScan and MicroRNA; meanwhile, the expression of ANK2, FAK, MMP2, MMP12,CD44,SNAIL1 were observed by qRT-PCR and western blot analysis. The present study established that the expression levels of miR-647 were downregulated in GC tissues from patients with metastasis and in the vincristine-resistant SGC7901 (SGC-7901/VCR) GC cell line. The IC50 value for vincristine was significantly decreased, whereas the proportion of cells in G0/G1 phase and the drug-induced apoptotic rate were significantly increased following upregulation of miR-647. Furthermore, the results demonstrated that miR-647 overexpression led to decreased migration and invasion of SGC-7901/VCR cells. Overexpression of miR-647 was also demonstrated to sensitize tumors to chemotherapy in vivo. In addition, miR-647 overexpression was able to reduce the expression levels of ankyrin-B, focal adhesion kinase, matrix metalloproteinase (MMP)2, MMP12, cluster of differentiation 44 and snail family transcriptional repressor 1. In conclusion, these findings demonstrated that miR-647 may function as a novel target to ameliorate drug resistance and metastasis of GC cells. PMID- 29328429 TI - Anthocyanins inhibit high glucose-induced renal tubular cell apoptosis caused by oxidative stress in db/db mice. AB - Oxidative stress is an important contributory factor resulting the development of kidney injury in patients with diabetes. Numerous in vitro and in vivo studies have suggested that anthocyanins, natural phenols commonly existing in numerous fruits and vegetables, exhibit important antioxidative, anti-inflammatory and antihyperlipidemic effects; however, their effects and underlying mechanisms on diabetic nephropathy (DN) have not yet been fully determined. In the present study, the regulation of apoptosis metabolism and antioxidative effects exhibited by anthocyanins [grape seed procyanidin (GSPE) and cyanidin-3-O-beta-glucoside chloride (C3G)] were investigated, and the molecular mechanism underlying this process was investigated in vivo and in vitro. GSPE administration was revealed to suppress renal cell apoptosis, as well as suppress the expression of Bcl-2 in diabetic mouse kidneys. Furthermore, GSPE administration was demonstrated to suppress the expression of thioredoxin interacting protein (TXNIP), in addition to enhancing p38 mitogen-activation protein kinase (MAPK) and extracellular signal-regulated kinase 1/2 (ERK1/2) oxidase activity in diabetic mouse kidneys. In vitro experiments using HK-2 cells revealed that C3G suppressed the generation of HG-mediated reactive oxygen species, cellular apoptosis, the expression of cleaved caspase-3 and the Bax/Bcl-2 ratio; and enhanced the expression of cytochrome c released from mitochondria. Furthermore, treatment with C3G was revealed to suppress the expression of TXNIP, in addition to the phosphorylation of p38 MAPK and ERK1/2 oxidase activity in HK-2 cells under HG conditions. In addition, treatment with C3G was revealed to attenuate the HG-induced suppression of the biological activity of thioredoxin, and to enhance the expression of thioredoxin 2 in HK-2 cells under HG conditions. In conclusion, the present study demonstrated that anthocyanins may exhibit protective effects against HG-induced renal injury in DN via antioxidant activity. PMID- 29328432 TI - A double-edged function of DDX3, as an oncogene or tumor suppressor, in cancer progression (Review). AB - DEAD-box RNA helicase 3 (DDX3) is a highly conserved family member of DEAD-box proteins in all eukaryotes from yeasts to human beings. Accumulating studies have confirmed DDX3 has the ability to regulate different steps of RNA metabolism, including RNA splicing, RNA export, transcription and translation initiation. Moreover, DDX3 is involved in many biological processes, such as stress response, cell apoptosis, cell cycle regulation and virus infection. In recent years, DDX3 is getting increasing attention due to its essential roles in cancer progression. However, DDX3 role in cancer development is rather complicated. This review mainly focuses on the dual roles of DDX3 and DDX3-mediated signaling pathways in multiple cancers. In addition, the interplaying causes for the controversial roles of DDX3 in cancer are discussed. So far several small molecular chemical compounds targeting DDX3 are also summarized from the anticancer activity to the clinical trials of DDX3 inhibitors. PMID- 29328430 TI - Vanillin improves scopolamine-induced memory impairment through restoration of ID1 expression in the mouse hippocampus. AB - 4-Hydroxy-3-methoxybenzaldehyde (vanillin), contained in a number of species of plant, has been reported to display beneficial effects against brain injuries. In the present study, the impact of vanillin on scopolamine-induced alterations in cognition and the expression of DNA binding protein inhibitor ID-1 (ID1), one of the inhibitors of DNA binding/differentiation proteins that regulate gene transcription, in the mouse hippocampus. Mice were treated with 1 mg/kg scopolamine with or without 40 mg/kg vanillin once daily for 4 weeks. Scopolamine induced cognitive impairment was observed from 1 week and was deemed to be severe 4 weeks following the administration of scopolamine. However, treatment with vanillin in scopolamine-treated mice markedly attenuated cognitive impairment 4 weeks following treatment with scopolamine. ID1-immunoreactive cells were revealed in the hippocampus of vehicle-treated mice, and were hardly detected 4 weeks following treatment with scopolamine. However, treatment with vanillin in scopolamine-treated mice markedly restored ID1-immunoreactive cells and expression 4 weeks subsequent to treatment. The results of the present study suggested that vanillin may be beneficial for cognitive impairment, by preventing the reduction of ID1 expression which may be associated with cognitive impairment. PMID- 29328431 TI - Bioinformatic analysis of gene expression profiling of intracranial aneurysm. AB - Intracranial aneurysm (IA) is a severe clinical condition of primary concern and currently, there is no effective therapeutic reagent. The present study aimed to investigate the molecular mechanism of IA via bioinformatic analysis. Various gene expression profiles (GSE26969) were downloaded from the Gene Expression Omnibus database, including 3 IA and 3 normal superficial temporal artery samples. Firstly, the limma package in R language was used to identify differentially expressed genes (DEGs; P-value <0.01 and |log2 FC|>=1). Secondly, the database for annotation, visualization and integrated discovery software was utilized to perform pathway and functional enrichment analyses (false discovery rate <=0.05). Finally, protein-protein interaction (PPI) network and sub-network clustering analyses were performed using the biomolecular interaction network database and ClusterONE software, respectively. Following this, a transcription factor regulatory network was identified from the PPI network. A total of 1,124 DEGs were identified, of which 989 were upregulated and 135 downregulated. Pathway and functional enrichment analyses revealed that the DEGs primarily participated in RNA splicing, functioning of the spliceosome, RNA processing and the mRNA metabolic process. Following PPI network analysis, 1 hepatocyte nuclear factor (HNF) 4A (transcription factor)-centered regulatory network and 5 DEG centered sub-networks were identified. On analysis of the transcription factor regulatory network, 6 transcription factors (HNF6, HNF4A, E2F4, YY1, H4 and H31T) and a regulatory pathway (HNF6-HNF4-E2F4) were identified. The results of the present study suggest that activating transcription factor-5, Jun proto-oncogene, activator protein-1 transcription factor subunit, HNF6, HNF4 and E2F4 may participate in IA progression via vascular smooth muscle cell apoptosis, inflammation, vessel wall remodeling and damage and the tumor necrosis factor beta signaling pathway. However, further experimental studies are required to validate these predictions. PMID- 29328433 TI - Peiminine serves as an adriamycin chemosensitizer in gastric cancer by modulating the EGFR/FAK pathway. AB - Gastric cancer (GC) is one of the most common malignancies of the digestive tract. Adriamycin (ADR) has been widely utilized in various chemotherapy regimens for treating GC, yet its long-term application may increase drug resistance resulting in treatment failure. Increasing evidence shows that bioactive natural products can be used as chemotherapeutic sensitizers that can significantly improve chemotherapy sensitivity. Peiminine (PMI) is a biologically active component extracted from Fritillaria walujewii Regel. Thus, in the present study, we aimed to investigate whether peiminine (PMI) alters the chemosensitivity of GC to adriamycin (ADR). GC cells were treated with ADR with or without PMI. MTT assay, flow cytometry and a nude mouse tumor xenograft model of SGC7901 cells were used to evaluate the chemosensitization activity of PMI combined with ADR. Western blotting was used to examine the expression of cyclin D1 and cleaved PARP. The RayBio(r) Human RTK phosphorylation antibody array kit was used to test the differential protein expression. Compared with the ADR group, PMI combined with ADR significantly suppressed cell proliferation and induced cell apoptosis in vitro. The growth curve and tumor weight of the tumor xenografts were significantly decreased in mice treated with the combination of PMI and ADR. However, the organs showed no obvious abnormality after treatment with PMI plus ADR. The expression of cyclin D1 was decreased and the level of cleaved PARP was increased after treatment with PMI and ADR. The expression of p-EGFR and p-FAK was downregulated in cells treated with PMI and ADR, and the validation of p-EGFR and p-FAK was in accordance with the result of the phosphorylation antibody array kit. PMI may serve as a new chemosensitizer by inhibiting the proliferation and inducing the apoptosis to enhance the chemotherapeutic drug sensitivity of ADR in GC. PMID- 29328434 TI - Chemical conversion of human lung fibroblasts into neuronal cells. AB - It has been previously reported that human embryonic fibroblasts and mouse embryonic fibroblasts can be converted into neuronal cells using chemical agents, along with forced expression specific transcriptional factors. However, the materials required for reprogramming in these approaches presents major technical difficulties and safety concerns. The current study investigated whether a cocktail of small molecules can convert human lung fibroblast cells into neurons. The small molecules valproic acid, CHIR99021, DMH1, Repsox, forskolin, Y-27632 and SP600125 (VCHRFYS) were used to induce MRC-5 cells into neuronal cells in vitro. Neuronal markers were analyzed by immunofluorescence staining. The gene profiles were analyzed by reverse transcription-quantitative polymerase chain reaction. MRC-5 is a human lung fibroblast cell line derived from normal lung tissue of a 14-week-old male fetus. The results of the current study demonstrated that MRC-5 fibroblasts can be directly converted into neuronal cells using a cocktail of seven small molecules (VCHRFYS), with a yield of ~90% Tuj1-positive cells after 7 days of induction. Following a further maturation period, these chemically-induced neurons possessed neuronal morphology and expressed multiple neuron-specific genes. In conclusion, a cocktail of small molecules that can convert fibroblasts MRC-5 cells into functional neurons without the exogenous genetic factors was identified, which has the potential to be useful in neurological disease therapy. PMID- 29328435 TI - miR-214 reduces cisplatin resistance by targeting netrin-1 in bladder cancer cells. AB - miR-214 has been reported to be downregulated in several cancer types, such as bladder cancer. However, its involvement in apoptosis and chemoresistance has not been investigated. The present study aimed to clarify the biological function of miR-214 and potential mechanisms in chemoresistance of bladder cancer cells. Reverse transcription-quantitative polymerase chain reaction demonstrated that miR-214 was downregulated in bladder cancer tissues compared with the level in normal tissues. miR-214 was downregulated in bladder cancer cell lines compared with the level in the normal cell line SV-HUC-1. miR-214 mimics were transfected into T24 and J82 cell lines to restore its expression. The results indicated that miR-214 mimic inhibited proliferation and invasion in these cell lines. In addition, miR-214 mimic reduced cisplatin resistance in T24 and J82 cells, indicated by the inhibition of cell viability and upregulation of cell apoptosis. Western blotting demonstrated that miR-214 mimic was able to upregulate cleaved caspase-3 and cleaved poly (ADP-ribose) polymerase (PARP), while downregulate caspase-3 and PARP expression, and AKT phosphorylation. Using prediction software, it was revealed that the netrin-1 oncoprotein is on the target list of miR-214. miR-214 also downregulated netrin-1 protein and mRNA expression levels in the T24 and J82 cell lines. Luciferase reporter assays demonstrated that netrin-1 acted as a direct target of miR-214. A negative correlation between netrin-1 and miR-214 expression in bladder cancer tissues was also observed. In addition, cisplatin treatment could induce netrin-1 protein expression in bladder cancer cells and miR-214 mimic partly blocked this phenomenon. Netrin-1 plasmid transfection inhibited cisplatin-induced apoptosis, upregulated AKT phosphorylation, and downregulated caspase-3 and PARP cleavage. Netrin-1 was restored in cells transfected with miR-214 mimic using plasmid transfection. Netrin-1 transfection restored AKT phosphorylation and blocked caspase/PARP cleavage in the T24 and J82 cell lines. In conclusion, the present study demonstrated that miR-214 is downregulated in bladder cancer tissues and cell lines. miR-214 reduces chemoresistance by targeting netrin-1 in bladder cancer cell lines. PMID- 29328437 TI - Reduced mitochondrial response sensitivity is involved in the anti-apoptotic effect of dexmedetomidine pretreatment in cardiomyocytes. AB - Dexmedetomidine is a commonly used alpha2-adreno-ceptor agonist, which affects various organs, including providing beneficial effects on the heart. However, the mechanism underlying the cardiac benefit remains to be fully elucidated. In the present study, it was demonstrated that dexmedetomidine pretreatment on primary cultured rat cardiomyocytes protected against reactive oxygen species (ROS) induced apoptosis. In terms of the potential mechanism, it was demonstrated that dexmedetomidine inhibited mitochondrial biogenesis and mitochondrial respiratory complexes, but with increased coupling efficiency. However, dexmedetomidine upregulated mitochondrial membrane potential (Deltapsim) and resisted against the loss of Deltapsim induced by carbonilcyanide p-triflouromethoxyphenylhydrazone. Due to the importance of mitochondria affecting ROS, the present study investigated the dexmedetomidine-suppressed mitochondrial response to H2O2 stimulation, which was explained by suppressed ROS levels and the suppression of the increased oxygen consumption rate. Results demonstrated for the first time, to the best of our knowledge, a novel protective mechanism for dexmedetomidine on cardiomyocytes through the attenuated response of mitochondria towards H2O2, which had a protective effect against ROS-induced apoptosis. PMID- 29328436 TI - Role of exosomes and exosomal microRNAs in hepatocellular carcinoma: Potential in diagnosis and antitumour treatments (Review). AB - Communication between hepatocellular carcinoma (HCC) cells and their environment is essential for the development and progression of HCC. Exosomes, which are microvesicles secreted by a number of cell types, are carriers of intercellular information and regulate the tumour microenvironment. Studies have demonstrated that exosomes are involved in the communication between HCC cells, endothelial cells and stem cells, and that they serve important roles in the metastasis and invasion, immune evasion and immunotherapy of HCC. In addition, the mechanism of HCC-derived exosome-mediated microRNA (miRNA) transfer is important in the environmental modulation of HCC growth and progression. As exosomes can be used for detecting and monitoring HCC, they can potentially serve as specific biomarkers for early-stage tumours and the tumour metastasis of HCC. Moreover, mesenchymal stem cell-derived exosomes can be transfected with miRNAs to inhibit HCC development. Therefore, as nucleic acid delivery vehicles, exosomes show a tremendous potential for effective treatment against HCC. In the present review, recent advances in our understanding of the source, composition and function of exosomes in HCC, and their potential value in the early diagnosis and treatment of HCC, are summarized. PMID- 29328438 TI - Cynandione A inhibits lipopolysaccharide-induced cell adhesion via suppression of the protein expression of VCAM-1 in human endothelial cells. AB - Cynandione A (CA) is one of the most active compounds in the roots of Cynanchum wilfordii, the extracts of which have been used extensively in East Asia to treat various diseases including anti-ischemic stroke. In the present study, the anti adherent activity of CA in lipopolysaccharide (LPS)-stimulated human umbilical vascular endothelial cells (HUVECs) was investigated. CA markedly reduced the expression of vascular adhesion molecule-1 (VCAM-1) by LPS in HUVECs. The results also demonstrated that CA significantly reduced the expression of pro inflammatory and chemoattractant cytokines, including interleukin (IL)-1beta, IL 6, IL-8, monocyte chemoattractant protein-1 and tumor necrosis factor-alpha, in LPS-activated human endothelial cells. CA inhibited the phosphorylation of mitogen-activated protein kinases, including the extracellular signal-regulated kinase 1/2 and p38 kinases. It was found that CA decreased the IKK/IkappaB-alpha phosphorylation of inhibitor of nuclear factor (NF)-kappaB kinase/inhibitor of NF kappaB-alpha, suppressed translocation of the NF-kappaB p65 subunit into the nucleus and inhibited the transcriptional activity of NF-kappaB. CA also decreased human monocyte cell adhesion to endothelial cells in LPS-stimulated conditions. These results demonstrated that CA inhibited the protein expression of VCAM-1 and pro-inflammatory cytokines by suppressing the transcriptional activity of NF-kappaB. The results also suggested that CA may be important in the development of anti-inflammatory drugs by inhibiting the expression of cell adhesion molecules. PMID- 29328440 TI - Methanol extract of Guettarda speciosa Linn. inhibits the production of inflammatory mediators through the inactivation of Syk and JNK in macrophages. AB - Guettarda speciosa Linn. (G. speciosa, Rubiaceae) has been used as a traditional medicinal plant in Asia for the treatment of various inflammatory conditions, including cough, fever and maternal postpartum infection. However, the mechanisms underlying the anti-inflammatory action of G. speciosa extracts have remained elusive. In the present study, the anti-inflammatory effects of the methanol extract of G. speciosa (MGS) were investigated in murine macrophages by measuring the production of inflammatory mediators and the underlying mechanisms of action by performing immunoblotting analysis of proteins that are potentially involved. MGS reduced nitric oxide (NO) production through regulation of the expression of inducible NO synthase (iNOS) in lipopolysaccharide-activated RAW 264.7 cells; however, cyclooxygenase-2, the enzyme responsible for prostaglandin E2 production, was not affected at the mRNA or protein level. MGS reduced interleukin-6 (IL-6) production, but had no effect on tumor necrosis factor (TNF) alpha production. In addition, MGS suppressed the transcription of IL-6, but not that of IL-1beta and TNF-alpha. The effect of MGS on proinflammatory mediators resulted from the inhibition of the activation of spleen tyrosine kinase and c Jun N-terminal kinase. In conclusion, the present study suggested that MGS may be a potential candidate for development as a therapeutic for alleviating inflammation. PMID- 29328439 TI - Prognostic significance of hypoxia inducible factor-1alpha expression in patients with clear cell renal cell carcinoma. AB - The prognostic significance of hypoxia inducible factor-1alpha (HIF-1alpha) expression in tumors and the levels of preoperative hemoglobin in clear cell renal cell carcinoma (ccRCC), with or without concomitant chronic obstructive pulmonary disease (COPD), was investigated. A total of 128 patients with ccRCC who underwent surgery were analyzed using retrospective methods. Overall survival (OS) and progression free survival (PFS) were analyzed with clinicopathological variables, including preoperative hemoglobin levels, COPD and the levels of HIF 1alpha expression, by Kaplan-Meier survival analysis. Levels of HIF-1alpha expression were detected by immunohistochemistry and the multivariate analysis was performed by proportional hazards regression. High levels of HIF-1alpha expression were associated with a higher pathological stage and histological grade in patients with ccRCC (P<0.05). The median OS and PFS of patients with concomitant COPD were shorter compared with patients without COPD (P<0.05). The levels of serum hemoglobin, HIF-1alpha expression and COPD diagnosis were all identified as independent prognostic variables for the OS and PFS of patients with ccRCC. PMID- 29328443 TI - [Retracted] Effects of cyclin E gene silencing on the proliferation of esophageal cancer cell lines, EC9706, Eca109 and KYSE30. AB - Subsequently to the publication of this article, an interested reader drew to our attention the fact that the six panels shown in Fig. 6 shared several areas of identity among them. Following an internal investigation, a laboratory technician, who was responsible for editing the pictures, admitted that the data as presented in the figure had been manipulated after having mislaid some of the original data. The corresponding author of the article takes responsibility for this oversight, and therefore the paper is to be retracted from publication. All of the named authors agree to this retraction. We deeply regret that these errors were allowed to remain in the paper, and extend our apologies to the readership of the Journal. [the original article was published in Molecular Medicine Reports 7: 799-804, 2013; DOI: 10.3892/mmr.2013.1280]. PMID- 29328441 TI - Ubenimex, an APN inhibitor, could serve as an anti-tumor drug in RT112 and 5637 cells by operating in an Akt-associated manner. AB - Bladder cancer, a common urinary tract tumor, has high mortality and recurrence rates associated with metastasis. Aminopeptidase N (APN) expression and metastasis have been indicated to be associated with one another. Ubenimex may function as an APN inhibitor to inhibit the degradation of the extracellular matrix during tumorigenesis. Furthermore, APN has been widely used as an adjuvant therapy for the treatment of tumors; however, little information is available regarding the impact of ubenimex on patients. Autophagy is suggested to be important in the transformation and progression of cancer. Additionally, apoptosis, which leads to the rapid demolition of cellular organelles and structures, has also been suggested as an important factor. Thus, the present study investigated the role of ubenimex in inhibiting migration and invasion by downregulating APN expression levels to induce autophagic cell death and apoptosis in bladder cancer cells. RT112 and 5637 cell lines were treated with varying doses of ubenimex. Cell viability was measured by CCK8 colorimetry and flow cytometry. Using fluorescence microscopy, autophagic cell death was assessed using acridine orange/ethidium bromide staining. Furthermore, apoptotic cell death was assessed using flow cytometry and Trypan blue staining was used to evaluate the cell death rate. Protein expression was determined by western blot analysis. Matrigel invasion assays were exploited to assess the invasion capabilities of 5637 cells. Wound-healing migration assays and Matrigel migration assays were exploited to assess the migratory abilities of 5637 cells. Treatment with ubenimex was accompanied by decreased Akt expression, indicating that ubenimex may have similar functions to Akt inhibitors. Results also indicated that ubenimex inhibited cell migration and invasion in bladder cancer cells. Furthermore, ubenimex also induced autophagic cell death and apoptosis, which suggested that mixed programmed cell death occurred in ubenimex-treated bladder cancer cells. The results from the present study suggest that ubenimex may be a potential adjuvant therapy for the treatment of bladder cancer. PMID- 29328442 TI - Identification of differentially expressed genes and regulatory relationships in Huntington's disease by bioinformatics analysis. AB - Huntington's disease (HD) is an inherited, progressive neurodegenerative disease caused by a CAG expansion in the huntingtin (HTT) gene; various dysfunctions of biological processes in HD have been proposed. However, at present the exact pathogenesis of HD is not fully understood. The present study aimed to explore the pathogenesis of HD using a computational bioinformatics analysis of gene expression. GSE11358 was downloaded from the Gene Expression Omnibus andthe differentially expressed genes (DEGs) in the mutant HTT knock-in cell model STHdhQ111/Q111 were predicted. DEGs between the HD and control samples were screened using the limma package in R. Functional and pathway enrichment analyses were conducted using the database for annotation, visualization and integrated discovery software. A protein-protein interaction (PPI) network was established by the search tool for the retrieval of interacting genes and visualized by Cytoscape. Module analysis of the PPI network was performed utilizing MCODE. A total of 471 DEGs were identified, including ribonuclease A family member 4 (RNASE4). In addition, 41 significantly enriched Kyoto Encyclopedia of Genes and Genomes pathways, as well as several significant Gene Ontology terms (including cytokine-cytokine receptor interaction and cytosolic DNA-sensing) were identified. A total of 18 significant modules were identified from the PPI network. Furthermore, a novel transcriptional regulatory relationship was identified, namely signal transducer and activator of transcription 3 (STAT3), which is regulated by miRNA-124 in HD. In conclusion, deregulation of 18 critical genes may contribute to the occurrence of HD. RNASE4, STAT3, and miRNA-124 may have a regulatory association with the pathological mechanisms in HD. PMID- 29328445 TI - The effects of interleukin 2 and rAd-p53 as a treatment for glioblastoma. AB - Interleukin 2 (IL-2) is an anti-cancer cytokine that stimulates T cell propagation, triggering innate and adaptive immunity. IL-2 has been used for cancer therapy and has achieved curative effects. Recombinant adenovirus p53 injection (rAd-p53) is a gene therapeutic agent that may improve the prognosis of patients with glioblastoma (GBM). In the present study, the effect of combined IL 2 and rAd-p53 treatment was studied. The ability of IL-2 to stimulate immunoregulation and the ability of p53 to induce apoptosis for GBM was researched in the GBM tumor model. In addition, the activity of IL-2 was analyzed. The antitumor potential of IL-2 and rAd-p53 was studied using xenograph mice carrying GBM cells. Tumor-specific CD4+ and CD8+ T cells were also analyzed in the GBM-bearing models. The results demonstrated that IL-2 and rAd-p53 not only stimulated tumor-specific cytotoxic T-lymphocyte responses and increased regulatory CD4+ and cytotoxic CD8+ T cell proliferation, however additionally increased expression of apoptosis-associated genes. The treatment with IL-2 and rAd-p53 resulted in tumor regression and prolonged the survival of glioma-bearing mice. Taken together, a combination of IL-2 and rAd-p53 treatment combines the effects of immunotherapy and oncolytic therapy and may be a comprehensive therapeutic schedule for clinical application in future cancer therapies. PMID- 29328444 TI - SP1 reduces autophagic flux through activating p62 in gastric cancer cells. AB - Gastric cancer is the most common type of gastrointestinal cancer, causing mortality worldwide. However, the underlying molecular mechanism in gastric cancer progression remains unclear. The autophagic flux was determined in gastric cancer cells overexpressing or inhibiting Sp1 transcription factor (SP1) using western blotting, reverse transcription-polymerase chain reaction and immunofluorescence staining. Luciferase and ChIP assays were performed to detect the potential underlying mechanism of SP1 in gastric cancer cells. Lastly, immunohistochemistry was also performed on SP1 and p62 expression levels in human gastric cancer specimens. It was demonstrated that SP1 diminished autophagic flux via activating p62 in gastric cancer. Moreover, SP1 deficiency increased the rate of autophagy of gastric cancer cells. Notably, it was observed that SP1 enhanced the expression levels of p62 by directly binding to the promoter of p62. Analysis of gastric cancer specimen staining established that p62 expression levels were increased in SP1-positve gastric tissues. The present study provided evidence for a novel mechanism regulating autophagy in gastric cancer cells. PMID- 29328446 TI - Clinical significance of Iroquois Homeobox Gene - IRX1 in human glioma. AB - The present study aimed to investigate the location, expression and clinical significance of Iroquois homeobox gene (IRX1) in human glioma. The expression of IRX1 gene in glioma cell lines (U87, U373, LN229 and T98G) and normal brain tissue was detected via reverse transcription-polymerase chain reaction. The IRX1 protein in fresh glioma specimens, with the adjacent normal brain tissue, was quantified through western blotting. The archived glioma only specimens from the present hospital and glioma specimens with adjacent normal brain tissue, from Alenabio biotechnology, were subjected to immunohistochemistry and tissue microarray analysis, respectively. The Kaplan-Meier method was employed to assess the correlation between the IRX1 level and the overall survival time of the patients. IRX1 gene was demonstrated to be expressed at varying levels in U373, LN229 and T98G cells, however not in U87 cells and normal brain tissue. Western blotting revealed increased IRX1 expression in glioma tissue compared with adjacent normal brain tissue. Furthermore, a direct correlation was observed between the IRX1 expression and the clinical glioma grade, with a significant difference in the gene expression between high grade and low grade glioma (P<0.05). Notably, IRX1 was identified to be localized to the cytoplasm in the adjacent normal brain and World Health Organization grade I glioma, whereas was identified to be present in the nucleus in higher grade glioma. In addition to being established as a significant prognostic variable, IRX1 expression was positively correlated with the overall survival of glioma patients. IRX1 gene may therefore exhibit an oncogenic role in glioma condition, and thus may be of clinical importance as a future therapeutic target. PMID- 29328447 TI - High-mobility group protein B1 silencing promotes susceptibility of retinoblastoma cells to chemotherapeutic drugs through downregulating nuclear factor-kappaB. AB - The aim of the present study was to investigate the effects of high-mobility group protein B1 (HMGB1) silencing on the susceptibility of retinoblastoma (RB) cells to chemotherapeutic drugs and the underlying molecular mechanisms. Western blot analysis revealed that vincristine (VCR), etoposide (ETO) and carboplatin (CBP) significantly increased the expression of HMGB1 in Weri-Rb-1 and Y79 cells compared with the untreated control (P<0.01). siRNA HMGB1 and siRNA negative control (NC) were transfected to Y79 cells by LipofectamineTM 2000 and, following VCR treatment, the expression of HMGB1 and nuclear factor-kappaB (NF-kappaB) was analyzed. siRNA HMGB1 transfection silenced HMGB1 expression. The cytotoxicity of VCR to cells with and without siRNA HMGB1 was investigated by methyl thiazolyl tetrazolium (MTT) assay. siRNA HMGB1 markedly reduced the IC50 value of VCR to RB cells through downregulating the expression of NF-kappaB, similar to pyrrolidinedithiocarbamate (PDTC). Moreover, following siRNA HMGB1, siRNA NC and ammonium PDTC treatment, the apoptosis of RB cells with VCR incubation was evaluated by Hoechst staining, and the expression of cleaved caspase-3, cleaved poly(ADP-ribose) polymerase (PARP), Beclin 1 and p62 were determined with western blot analysis. The LC3 puncta were determined with immunofluorescence assay. The results demonstrated that VCR treatment significantly downregulated the expression of cleaved caspase-3, cleaved PARP and p62, and upregulated the expression of Beclin 1 in RB cells (P<0.01). Similar to the NF-kappaB inhibitor PDTC, siRNA HMGB1 significantly promoted apoptosis and suppressed autophagy of VCR-treated RB cells through reversing the effects of VCR on these signaling molecules (P<0.01). Therefore, HMGB1 silencing promoted the susceptibility of RB cells to chemotherapeutic drugs through downregulating NF-kappaB. PMID- 29328450 TI - MYBL2 protects against H9c2 injury induced by hypoxia via AKT and NF-kappaB pathways. AB - Cardiovascular diseases have become one of the major public health problems in many countries. The downregulation of MYBL2 was found in H9c2 and native cardiomyocytes cells after hypoxia treatment. The present study aimed to investigate the effects of MYB proto-oncogene like 2 (MYBL2) on H9c2 injury induced by hypoxia. Reverse transcription-quantitative polymerase chain reaction and western blot were performed on H9c2 cells to determine the mRNA and protein levels of MYBL2, respectively. Small interfering RNA (siRNA) was employed to downregulate MYBL2 expression in H9c2 cells to investigate changes in cell proliferation and apoptosis. Cell proliferation was assessed by a Cell Counting kit-8 assay and the percentage of apoptotic cells was determined using an Annexin V-fluorescein isothiocyanate/propidium iodide apoptosis detection kit. The nuclear factor-kappaB (NF-kappaB) and AKT signaling pathways in H9c2 cells were investigated by western blot analysis. The results demonstrated that the overexpression of MYBL2 promoted cell proliferation and suppressed apoptosis. Furthermore, overexpression of MYBL2 suppressed the expression of phosphorylated (p)-AKT, p-NF-kappaB inhibitor alpha, p-p65 and B-cell CLL/lymphoma 3 (Bcl-3). The results indicated that MYBL2 may improve cell viability and inhibit H9c2 apoptosis via the inhibition of AKT and NF-kappaB pathways. Therefore, MYBL2 may be a potential therapeutic target for the treatment of myocardial infarction. PMID- 29328449 TI - Bioinformatics analysis to screen key genes implicated in the differentiation of induced pluripotent stem cells to hepatocytes. AB - Due to the lack of potential organs, hepatocellular transplantation has been considered for treating end-stage liver disease. Induced pluripotent stem cells (iPSCs) are reverted from somatic cells and are able to differentiate into hepatocytes. The present study aimed to investigate the mechanisms underlying iPSC differentiation to hepatocytes. GSE66076 was downloaded from the Gene Expression Omnibus; this database includes data from 3 undifferentiated (T0), 3 definitive endoderm (T5), and 3 early hepatocyte (T24) samples across hepatic directed differentiation of iPSCs. Differentially expressed genes (DEGs) between T0 and T5 or T24 samples were identified using the linear models for microarray data package in Bioconductor, and enrichment analyses were performed. Using the weighted correlation network analysis package in R, clusters were identified for the merged DEGs. Cytoscape was used to construct protein-protein interaction (PPI) networks for DEGs identified to belong to significant clusters. Using the ReactomeFI plugin in Cytoscape, functional interaction (FI) networks were constructed for the common genes. A total of 433 and 1,342 DEGs were identified in the T5 and T24 samples respectively, compared with the T0 samples. Blue and turquoise clusters were identified as significant gene clusters. In the PPI network for DEGs in the blue cluster, the key node fibroblast growth factor 2 (FGF2) could interact with bone morphogenetic protein 2 (BMP2). Cyclin-dependent kinase 1 (CDK1) was demonstrated to have the highest degree (degree=71) in the PPI network for DEGs in the turquoise cluster. Enrichment analysis for the common genes, including hepatocyte nuclear factor 4alpha (HNF4A) and epidermal growth factor (EGF), in the FI network indicated that EGF and FGF2 were enriched in the Ras and Rap1 signaling pathways. The present results suggest that FGF2, BMP2, CDK1, HNF4A and EGF may participate in the differentiation of iPSCs into hepatocytes. PMID- 29328448 TI - Association between ACE2/ACE balance and pneumocyte apoptosis in a porcine model of acute pulmonary thromboembolism with cardiac arrest. AB - Acute pulmonary embolism (APE) is frequently reported in patients with cardiac arrest (CA) in emergency care. Pneumocyte apoptosis is commonly observed in the lungs following an APE. An important pathological mechanism evoking apoptosis during a lipopolysaccharide-induced acute lung injury is the angiotensin converting enzyme 2 (ACE2)/ACE imbalance. The present study uses a porcine model to examine the anti-apoptotic effects of captopril on APE-CA and the return of spontaneous circulation (ROSC). Pigs were randomly assigned into four groups: Control, APE-CA, ROSC-saline, and ROSC-captopril. Surviving pigs were euthanized at 6 h and lungs were isolated for analysis using several biochemical assays. Compared with the control group, the ACE2/ACE ratio was lower in the APE-CA and ROSC pigs. In addition, APE-CA pigs had higher Bcl-2-associated X protein (Bax) and cleaved caspase-3 levels, and lower B-cell lymphoma-2 (Bcl-2) level compared to control pigs. Captopril treatment reduced lung apoptosis, as demonstrated by lower TUNEL-positive cells, higher Bcl-2, and lower cleaved caspase-3 protein levels in the lung. Notably, the ACE2/ACE ratio was positively correlated with Bcl-2 protein levels and Bcl-2/Bax ratio. In conclusion, captopril has a protective effect against lung apoptosis following ROSC and that maintaining the balance of the ACE2/ACE axis is important for inhibiting pulmonary apoptosis during APE. PMID- 29328451 TI - A systematic review and meta-analysis of bidirectional effect of arsenic on ERK signaling pathway. AB - Arsenic is a toxic metal, which ultimately leads to cell apoptosis. ERK is considered a key transcriptional regulator of arsenic-induced apoptosis. Due to a few controversial issues about arsenic-mediated extracellular signal-regulated MAP kinases (ERK) signaling, a meta-analysis was performed. Subgroup analyses demonstrated that high doses (>=2 umol/l) of arsenic increased the expression of Ras, ERK, ERK1, ERK2, phosphorylated (p)-ERK, p-ERK1, and p-ERK2, while low doses (<2 umol/l) decreased the expression of Ras, ERK1, p-ERK, and p-ERK2 when compared to control groups. Long term exposure (>24 h) to arsenic led to inhibition of expression of ERK1, p-ERK1, and p-ERK2, whereas short-term exposure (<=24 h) triggered the expression of ERK1, ERK2, p-ERK, p-ERK1, and p-ERK2. Furthermore, normal cells exposed to arsenic exhibited higher production levels of Ras and p-ERK. Conversely, exposure of cancer cells to arsenic showed a lower level of production of Ras and p-ERK as well as higher level of p-ERK1 and p-ERK2 as compared to control group. Short-term exposure of normal cells to high doses of arsenic may promote ERK signaling pathway. In contrast, long-term exposure of cancer cells to low doses of arsenic may inhibit ERK signaling pathway. This study may be helpful in providing a theoretical basis for the diverging result of arsenic adverse effects on one hand and therapeutic mechanisms on the other concerning arsenic-induced apoptosis. PMID- 29328452 TI - HIF-1alpha-induced upregulation of lncRNA UCA1 promotes cell growth in osteosarcoma by inactivating the PTEN/AKT signaling pathway. AB - Increasing evidence indicates that long non-coding RNAs (lncRNAs) play an important role in multiple biological processes including cell growth, differentiation, proliferation and invasion. Urothelial carcinoma associated 1 (UCA1) is a highly conserved nuclear ncRNA and a key regulator of cell proliferation and apoptosis in several types of cancers. However, its role in osteosarcoma progression is not well known. In the present study, we aimed to determine the biological role of UCA1 in osteosarcoma progression. RT-qPCR analysis showed that UCA1 expression was significantly increased in osteosarcoma cell lines and promoted cell growth in osteosarcoma. We then sought to determine the mechanism underlying the upregulation of UCA1 in osteosarcoma. Luciferase reporter assay and chromatin immunoprecipitation assay suggested that lncRNA UCA1 was induced by HIF-1alpha and HIF-1alpha interacts with the HIF-1alpha response element in the promoter region of UCA1. In addition, the gain- and loss-of functional assay showed that HIF-1alpha promoted osteosarcoma cell growth through inducing the UCA1 expression level. More importantly, Cignal Signal Transduction Reporter Array and western blot assay showed that lncRNA UCA1 inactivated the PTEN/AKT signaling pathway. Finally, we observed that HIF-1alpha induced cell growth through the UCA1/PTEN/AKT signaling pathway. To conclude, our integrated approach demonstrates that UCA1 confers a tumor promoter function by promoting cell proliferation and silencing of the PTEN/AKT signaling pathway in osteosarcoma. Thus, UCA1 can serve as a promising therapeutic target for osteosarcoma patients. PMID- 29328453 TI - Aldosterone is involved in the pathogenesis of obesity-related glomerulopathy through activation of Wnt/beta-catenin signaling in podocytes. AB - Obesity-related glomerulopathy (ORG) is morphologically characterized by glomerulomegaly with or without observable focal segmental glomerulosclerosis under light microscope, with decreased podocyte density and number, and with increased foot-process width observed under electron microscope. The severity of podocyte injury is correlated with the degree of proteinuria and renal dysfunction. However, the pathogenesis of ORG is not well understood. The aim of the present study was to explore the possible pathogenic role of aldosterone (ALDO) in ORG. In the in vivo animal experiments, body weight, Lee's obesity index, abdominal fat index, urinary protein excretion, average glomerular diameter were significantly increased, the mRNA and protein expression of podocyte-associated molecules including nephrin, podocin, podoplanin and podocalyxin were significantly reduced, and the Wnt/beta-catenin signaling pathway was activated in ORG model mice compared with the Control mice, whereas the administration of spironolactone significantly ameliorated these effects. In the in vitro experiments on cultured podocytes, the mRNA and protein expression levels of the aforementioned podocyte-associated molecules were significantly downregulated and the Wnt/beta-catenin signaling pathway was activated following ALDO stimulation, whereas eplerenone significantly attenuated all the above effects. Dickkopf-related protein 1 (DKK1), an inhibitor of Wnt/beta-catenin signaling pathway, also reduced the effects of ALDO exposure on the expression of podocyte-associated molecules. The present study hypothesized that ALDO may be involved in the pathogenesis of ORG through the activation of Wnt/beta-catenin signaling pathway in podocytes. PMID- 29328454 TI - Resveratrol ameliorates depressive disorder through the NETRIN1-mediated extracellular signal-regulated kinase/cAMP signal transduction pathway. AB - Depressive disorder is a mental health disorder caused by the dysfunction of nerve regeneration, neuroendocrine and neurobiochemistry, which frequently results in cognitive impairments and disorder. Evidence has shown that resveratrol offers benefits for the treatment of depressive disorder. In the present study, the therapeutic effects of resveratrol were investigated and the potential mechanisms mediated by resveratrol were analyzed in hippocampal neuron cells. The anti-oxidative stress and anti-inflammatory properties of resveratrol were also examined in vitro and in vivo. The results revealed that resveratrol administration inhibited the inflammation in hippocampal neuron cells induced by ouabain. Oxidative stress in the hippocampal neuron cells was ameliorated by resveratrol treatment in vitro and in vivo. In addition, the apoptosis of hippocampal neuron cells was inhibited by the upregulation of anti-apoptotic genes, including P53, B-cell lymphoma-2 (Bcl-2) and Bcl-2-associated death promoter, and the downregulation of the cleaved caspase-3 and caspase-9. The analysis of the mechanism revealed that that resveratrol treatment suppressed the apoptosis of hippocampal neuron cells through the NETRIN1-mediated extracellular signal-regulated kinase/cAMP signal transduction pathway. The results of the in vivo assay showed that resveratrol treatment led to improvements in cognitive competence, learning memory ability and anxiety in a mouse model of depressive disorder induced by ouabain. In conclusion, these results indicated that resveratrol treatment had protective effects against oxidative stress and neuroinflammatory pathogenesis through the NETRIN1-mediated extracellular signal regulated kinase/cAMP signal transduction pathway, suggesting that resveratrol treatment may be a potential antidepressant agent for the treatment of depressive disorder. PMID- 29328456 TI - p21 protects cardiomyocytes against ischemia-reperfusion injury by inhibiting oxidative stress. AB - Ischemic heart disease is a major health threat, resulting in a large number of mortalities annually worldwide. Oxidative stress is one of the main causes of cell death during ischemia-reperfusion (IR) injury. Cyclin dependent kinase inhibitor 1A (known as p21) is important in protecting tissues against IR injury, however the mechanism remains unknown. In the present study, oxygen-glucose deprivation and subsequent reoxygenation (OGD/R) in H9c2 heart-derived myocytes was used as a model to study myocardial IR injury in vitro. mRNA and protein expression levels were determined by reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. The levels of reactive oxygen species were measured using the fluorescence dye 2',7' dichlorodihydrofluorescein diacetate. The present data demonstrated that p21 expression was upregulated by tumor protein p53 (p53) in H9c2 cells exposed to OGD/R. p21 protected H9c2 cells against OGD/R-induced oxidative stress. In addition, p21 mediated upregulation of NF-E2-related factor-2 (Nrf2), a regulator of antioxidant responses, which in turn suppressed cell death in H9c2 cells subjected to OGD/R. Thus, activation of the p53/p21/Nrf2 signaling pathway may be an important adaptive response that limits oxidative injury during IR. PMID- 29328455 TI - Role of miR-21 in the growth and metastasis of human salivary adenoid cystic carcinoma. AB - Aberrant microRNA (miRNA/miR) expression has been reported in various cancer types. miR-21, which is considered to be a proto-oncogene and is frequently overexpressed in certain cancer types, has been implicated in tumorigenesis. The aim of the present study was to investigate the effect of miR-21 degradation on tumor progression and its potential mechanisms in human salivary adenoid cystic carcinoma (SACC) development. Results of reverse transcription-quantitative polymerase chain reaction analysis indicated that SACC cells with high metastatic potential (SACC-LM cells) exhibited a significantly higher expression of miR-21 compared with SACC cells with a lower metastatic potential (SACC-83 cells). In addition, following transfection of SACC-LM cells with miR-21 inhibitor, cell viability was reduced, which may be a result of reduced cell proliferation and metastasis, and the induction of apoptosis, as determined by Cell Counting Kit-8, wound healing, Matrigel invasion and flow cytometry assays. Furthermore, bioinformatics analysis indicated that programmed cell death 4 (PDCD4), phosphatase and tensin homolog deleted on chromosome ten (PTEN) and B-cell lymphoma (Bcl)-2 are potential target genes of miR-21. Therefore, western blotting was performed to investigate the expression of these proteins, and the results demonstrated that miR-21 expression level was negatively associated with PDCD4 and PTEN protein expression, and positively associated with Bcl-2 protein expression, in SACC-LM cells, indicating that miR-21 may promote SACC progression via PDCD4, PTEN and Bcl-2. In conclusion, the present study indicates that miR-21 may be a novel target for SACC therapy and provide a novel basis for the clinical treatment of SACC. PMID- 29328457 TI - MicroRNA-34a inhibits liver cancer cell growth by reprogramming glucose metabolism. AB - MicroRNAs (miRs) have been proposed as minimally invasive prognostic markers for various types of cancer, including liver cancer, which is one of the most common cancers worldwide. In the present study, the expression of miR-34a in human liver cancer tissues and cell lines was evaluated and the effects of miR-34a on cell proliferation, invasion and glycolysis in hepatocellular carcinoma (HCC) cells were determined. The results indicated that miR-34a was downregulated in human liver cancer tissues. Overexpression of miR-34a significantly inhibited liver cancer cell proliferation and clone formation. In terms of the underlying mechanism, miR-34a was indicated to negatively regulate the expression of lactate dehydrogenase A (LDHA), which consequently inhibited LDHA-dependent glucose uptake in the cancer cells, as well as cell proliferation and invasion. Collectively, these data suggest that miR-34a functions as a negative regulator of glucose metabolism and may serve as a novel marker for liver cancer prognosis. PMID- 29328459 TI - alpha-solanine enhances the chemosensitivity of esophageal cancer cells by inducing microRNA-138 expression. AB - Esophageal cancer is a common malignant tumor worldwide. Inherent and acquired drug resistance are the major challenges faced in anticancer chemotherapy. This study aimed to explore the effects of alpha-solanine in regards to the chemosensitivity of esophageal cancer cells. We found that alpha-solanine enhanced the sensitivity of EC9706 and KYSE30 cells to 5-flurouracil (5-FU) and cisplatin (Cis) by promoting drug-induced apoptosis. qRT-PCR and western blotting results showed that alpha-solanine treatment promoted miR-138 expression and decreased survivin expression in EC9706 and KYSE30 cells. alpha-solanine also enhanced the inhibitory effects of 5-Fu and Cis in EC9706 transplanted tumors in mouse models. Dual-Luciferase reporter assay results confirmed survivin as the direct target gene of miR-138. MiR-138 inhibited survivin expression in EC9706 and KYSE30 cells. And miR-138 mimic and si-survivin had similar effects with alpha-solanine in suppressing survivin expression and promoting cancer cell death. miR-138 inhibitor reversed the chemosensitivity-enhancing effect of alpha solanine. In EC9706 and KYSE30 cells, survivin overexpression rescued the cancer cells from apoptosis caused by alpha-solanine and miR-138 mimic expression. From these findings, we conclude that alpha-solanine enhanced the chemosensitivity of esophageal cancer cells to chemotherapy via the miR-138/survivin pathway. This study provides insight into the molecular mechanism underlying the chemosensitivity-enhancing function of alpha-solanine and suggests a new chemotherapeutic strategy for esophageal cancer treatment. PMID- 29328460 TI - Terrein inhibits migration of human breast cancer cells via inhibition of the Rho and Rac signaling pathways. AB - Breast cancer is the most common cancer in women worldwide. Progression and aggressiveness of breast cancer is usually associated with its migration and invasion abilities. Recently, natural products with potential anticancer activity have become attractive candidates for alternative treatment of cancer. A fungal metabolite, terrein, isolated from the Aspergillus terreus has been revealed to exhibit selective anticancer activity; although this molecule has a variety of biological activities. The inhibitory effect on cell proliferation in hepatoma, keratinocytes, and lung cancer cells was due to cell cycle arrest without induction of apoptosis. In contrast, its effects on cervical and breast cancer cells were mediated through activation of the apoptotic process. However, the effect of terrein on cell migration and invasion has not been explored. In the present study we analyzed the molecular effects of terrein on cell adhesion, cell migration, and cell invasion using two breast cancer cell lines, MCF-7 and MDA-MB 231, which exhibit different levels of invasiveness. Terrein induced apoptosis in both breast cancer cell lines in a dose-dependent manner. In addition, at a non toxic concentration terrein exhibited a weak inhibition of cell adhesion, using either fibronectin or type IV collagen as substrates. Notably, terrein significantly inhibited both the migration and invasion abilities of MDA-MB-231 cells at the same non-toxic concentration. A marked decrease in MMP-2 and MMP-9 transcripts, as evaluated by real-time PCR, confirmed the anti-invasion effect of terrein at the transcriptional level. Western blot analyses revealed that terrein treatment suppressed RhoB expression and reduced Rac1 phosphorylation, leading to Rho GTPase inhibition. In addition, terrein-treated MCF-7 and MDA-MB-231 cells both displayed a scattered pattern of migration, suggesting that the suppression of RhoB and Rac1 disturbed the collective migration processes of breast cancer cells. PMID- 29328458 TI - Chitosan conduit combined with hyaluronic acid prevent sciatic nerve scar in a rat model of peripheral nerve crush injury. AB - In the present study, the effects of hyaluronic acid (HA) combined with chitosan conduit on peripheral nerve scarring and regeneration were investigated in a rat model of peripheral nerve crush injury. A total of 60 Sprague-Dawley rats were randomly distributed into four groups (15 rats in each group), in which the nerve was either not treated (control group) or treated with chitosan conduit, hyaluronic acid, or chitosan conduit coupled with hyaluronic acid following clamp injury to the sciatic nerve. The surgical sites were evaluated by assessing the sciatic functional index, the degree of scar adhesions, the numbers of myelinated nerve fibers, the average diameter of myelinated nerve fibers and the myelin sheath thickness. Larger epineurial scar thickness was observed in the control groups compared with the treatment groups at 4, 8 and 12 weeks following surgery. There was no significant difference in scar adhesion among the four groups at 4 weeks following surgery. However, animals receiving chitosan coupled with HA demonstrated better neural recovery, as measured by reduced nerve adherence to surrounding tissues, less scar adhesion, increased number of axons, nerve fiber diameter and myelin thickness. In conclusion, the application of chitosan conduit combined with HA, to a certain extent, inhibited sciatic nerve extraneural scaring and adhesion, and promoted neural regeneration and recovery. PMID- 29328461 TI - Anti-inflammatory effects of gambogic acid in murine collagen-induced arthritis through PI3K/Akt signaling pathway. AB - Garcinia angustifolia is a dry resin secreted by Garcinia cambogia, which has the functions of breaking blood, detoxifying, stopping bleeding and killing insects. It is used for the treatment of cancer and brain edema. Gambogic acid is the primary active ingredient. The present study aimed to investigate the anti inflammatory and antiproliferative effects of gambogic acid on arthritis and the possible mechanisms. It was demonstrated that gambogic acid decreased arthritic scores in murine collagen-induced arthritic mice. The tumor necrosis factor (TNF) alpha, interleukin (IL)-1beta, IL-6 and IL-18 concentrations, and caspase-3 and caspase-9 were significantly inhibited by gambogic acid in arthritic mice. Gambogic acid decreased matrix metalloproteinases (MMP)-2, MMP-9, nuclear factor (NF)-kappaB and phosphorylated-p38 protein expression, and increased tissue inhibitors of matrix metalloproteases-1 (TIMP-1) protein expression in arthritic mice. Furthermore, the phosphoinositide 3-kinase (PI3K)/AKT serine/threonine kinase (Akt) signaling pathway was induced in arthritic mice treated with gambogic acid. The results suggested that gambogic acid induced anti-inflammatory effects in murine collagen-induced arthritis, through the PI3K/Akt signaling pathway, and offers future potential for application in arthritis patients. PMID- 29328462 TI - Serum and glucocorticoid-regulated kinase 1 (SGK1) is a predictor of poor prognosis in non-small cell lung cancer, and its dynamic pattern following treatment with SGK1 inhibitor and gamma-ray irradiation was elucidated. AB - The tumor suppressor gene p53 and its dynamic patterns have caused widespread attention in the field of cancer research. Serum and glucocorticoid-regulated kinase 1 (SGK1) with features of serine/threonine kinase activity, which also contributes to the structural and functional similarities with the AKT family of kinases, is a key enzyme in the regulation of immune responses in tumor cells, and SGK1 was noted to be expressed in close relation to p53 protein levels, and there exists a negative feedback pathway between intracellular SGK1 and p53. Noteworthy, SGK1 was detected to play a role in the development of resistance to cancer chemotherapy. In this study, we demonstrated that high SGK1 expression had strong prognostic value for reduced overall survival in NSCLC patients. Detection of SGK1 collectively was helpful to predict the prognosis of NSCLC. We also identified the expression level of SGK1 and the p53 pathway including downstream apoptotic proteins under the stimulation of gamma-radiation and SGK1 inhibitor GSK650394, which presented a series of dynamic fluctuations. Our results suggest that SGK1 dynamics could play an important role in cell signaling, which is capable of directly influencing NSCLC cellular fate decisions. PMID- 29328463 TI - Construction and investigation of lncRNA-associated ceRNA regulatory network in papillary thyroid cancer. AB - Increasing evidence has experimentally proved the competitive endogenous RNA (ceRNA) hypothesis that long non-coding RNA (lncRNA) can affect the expression of RNA targets by competitively combining microRNA (miRNA) via miRNA response elements. However, an extensive ceRNA network of thyroid carcinoma in a large cohort has not been evaluated. We analyzed the RNAseq and miRNAseq data of 348 cases of primary papillary thyroid cancer (PTC) patients with clinical information downloaded from The Cancer Genome Atlas (TCGA) project to search for potential biomarkers or therapeutic targets. A computational approach was applied to build an lncRNA-miRNA-mRNA regulatory network of PTC. In total, 780 lncRNAs were detected as collectively dysregulated lncRNAs in all 3 PTC variants compared with normal tissues (fold change >2 and false discovery rate <0.05). The interactions among 45 lncRNAs, 13 miRNAs and 86 mRNAs constituted a ceRNA network of PTC. Nine out of the 45 aberrantly expressed lncRNAs were related to the clinical features of PTC patients. However, the expression levels of 3 lncRNAs (LINC00284, RBMS3-AS1 and ZFX-AS1) were identified to be tightly correlated with the patients overall survival (log-rank, P<0.05). The present study identified a list of specific lncRNAs associated with PTC progression and prognosis. This complex ceRNA interaction network in PTC may provide guidance for better understanding the molecular mechanisms underlying PTC. PMID- 29328464 TI - Inhibition of Gli leads to antitumor growth and enhancement of cisplatin-induced cytotoxicity in large cell neuroendocrine carcinoma of the lung. AB - Large cell neuroendocrine carcinoma (LCNEC) of the lung is a highly aggressive tumor without established standard treatment. The Hedgehog (Hh) signal, which is critical in embryogenesis, is known to play important roles in maintaining a malignant phenotype in various cancers. The present study explored the possibility of targeting the Hh signal in the treatment of LCNEC by suppressing Hh downstream molecules, Smoothened (Smo) and GLI family zinc finger 1/2 (Gli1/2), in 3 human LCNEC cell lines. Smo inhibitor, BMS-833923, and Gli inhibitor, GANT61, downregulated Gli1 and 2, resulting in the suppression of the cell viability of the 3 cell lines as assessed using an MTT assay. The downregulation of Gli1 and/or Gli2 using siRNA for each gene also led to cell growth inhibition in the 3 cell lines. The downregulation of Gli1/2 made the cells more sensitive to cisplatin, resulting in increased apoptosis. These findings suggest that the Hh signaling pathway may be a candidate target for the treatment of LCNEC of the lung. PMID- 29328465 TI - Effects of diphyllin as a novel V-ATPase inhibitor on TE-1 and ECA-109 cells. AB - Diphyllin is a natural component of traditional Chinese medicine, which effectively inhibits V-ATPase activity and affects the progression of cancer. However, few studies have been conducted on esophageal cancer, and the mechanisms remain to be elucidated. The present study revealedthat diphyllin inhibited proliferation and induced S arrest in esophageal cancer cell lines TE-1 and ECA 109. Further experiments revealed that diphyllin inhibited V-ATPase activity and decreased the mRNA expression of mammalian target of rapamycin complex 1 (mTORC1), hypoxia-inducible factor-1alpha (HIF-1alpha), and vascular endothelial growth factor (VEGF). The present study also revealed that diphyllin inhibited proliferation and reduced the formation of new blood vessels. Diphyllin inhibited blood metastasis by regulating the mTORC1/HIF-1alpha-/VEGF pathway, therefore it could be considered as a new V-ATPase inhibitor to treat esophageal cancer. PMID- 29328466 TI - Knockdown of immature colon carcinoma transcript 1 induces suppression of proliferation, S-phase arrest and apoptosis in leukemia cells. AB - Immature colon carcinoma transcript 1 (ICT1), a human mitochondrial translation release factor, is a ribosome-dependent codon-independent peptidyl-tRNA hydrolase. ICT1-deficiency has been recognized as a cell growth inhibitor of hepatoblastoma and glioblastoma multiforme. To explore the role of ICT1 in human leukemia, 2 short hairpin RNAs (shRNAs) targeting ICT1 sequences were designed in leukemia U937 cells. The successful infection of ICT1 in the U937 cells was observed under a fluorescence microscope and further quantified by western blotting and quantitative real-time PCR (qRT-PCR) analysis. Tetrazolium dye (MTT) assay revealed a significant decrease in proliferation of ICT1-knockdown U937 cells on the fourth and fifth day as compared with the control. Depletion of ICT1 resulted in an increase in S phase and sub-G1 (representing cell apoptosis) fractions. Annexin V-APC/7-AAD staining assay confirmed that knockdown of ICT1 played a crucial role in boosting early and late apoptotic programs in U937 cells. Downregulation of ICT1 also altered cyclin A2 transcription expression, caspase-3 activity and p21 protein expression. Additionally, decreased levels of heat shock protein 27 (HSP27) phosphorylation at Ser78 was correlated with knockdown of ICT1 in U937 cells. Thus, we concluded that the regulatory role of ICT1 in leukemia may be used as a potential therapeutic target for the treatment of leukemia. PMID- 29328467 TI - Aspirin and metformin exhibit antitumor activity in murine breast cancer. AB - Studies have shown that aspirin and metformin play important roles in chemoprevention and repression of breast cancers, even though the exact mechanism remains unclear. Aspirin is capable of stimulating apoptosis through prostaglandin-dependent or prostaglandin-independent pathways. Metformin inhibits cell growth by enhancing the tumor suppressive function of transforming growth factor (TGF-beta). In the present study, we report a new link between aspirin, metformin, TGF-beta1 and murine breast cancer inhibition. Specifically, we showed that aspirin and metformin enhanced 4T1 cell apoptosis by inducing secretion of TGF-beta1, whereas estradiol weakened the effect. PMID- 29328468 TI - MicroRNA-136 inhibits prostate cancer cell proliferation and invasion by directly targeting mitogen-activated protein kinase kinase 4. AB - Prostate cancer (PCa) is the second most common type of cancer and the 6th leading cause of cancer-associated mortality worldwide. Accumulated evidence suggests that PCa initiation and progression are controlled by microRNAs (miRNAs). Therefore, investigating PCa-associated miRNAs may provide novel biomarkers for the diagnosis and treatment of patients with PCa. In the present study it was demonstrated that miRNA-136 (miR-136) expression was significantly downregulated in PCa tissues and cell lines. The resumption of miR-136 expression suppressed cell proliferation and invasion in PCa cells. Bioinformatics analysis predicted that mitogen-activated protein kinase kinase 4 (MAP2K4) was a direct target of miR-136. This prediction was experimentally confirmed by a luciferase reporter assay, RT-qPCR and western blot analysis. MAP2K4 was highly expressed in PCa tissues and inversely correlated with the miR-136 expression level. Additionally, the restoration of MAP2K4 expression significantly blocked the inhibitory effects of miR-136 on cell proliferation and invasion in PCa cells. Therefore, miR-136 may suppress the proliferation and invasion of PCa cells by targeting MAP2K4 and may be a novel candidate target for cancer therapy against PCa. PMID- 29328469 TI - Human cytomegalovirus UL141 protein interacts with CELF5 and affects viral DNA replication. AB - Human cytomegalovirus (HCMV) infection is the primary viral cause of congenital abnormalities and mental retardation in newborns. The HCMV UL141-encoded glycoprotein has been previously revealed to inhibit the cell-surface expression of cluster of differentiation (CD)155, CD122, tumor necrosis factor-related apoptosis-inducing ligand death (TRAIL)-receptor 1 (R1) and TRAIL-receptor 2 (R2), thus protecting virally-infected cells by allowing them to escape natural killer cell-mediated cytotoxicity. The present study investigated the interaction between HCMV UL141 and human fetal brain cDNA to elucidate the possible effects of UL141 on the nervous system. The findings of the current study demonstrate that the HCMV UL141 protein directly interacts with the human protein CUGBP Elav like family member 5 (CELF5) via yeast two-hybrid screening, this interaction was confirmed by glutathione S-transferase pull-down and co-immunoprecipitation assays. Additionally, the present study demonstrated that the UL141 protein co localizes with CELF5 in the cytoplasm of 293 cells using fluorescence confocal microscopy. CELF5 overexpression in a stably-expressing cell line significantly increased viral DNA copy number and titer in HCMV-infected U373MG cells. However, reducing CELF5 expression via specific small interfering RNAs did not affect viral DNA copy number or titer in HCMV-infected cells. The current findings suggest that the interaction between UL141 and CELF5 may be involved in modulating viral DNA synthesis and progeny production. Therefore, CELF5 may represent a possible mechanism for regulation of HCMV genomic DNA synthesis, which is a key step during HCMV infection leading to neurological disease. PMID- 29328470 TI - Cobalt-protoporphyrin enhances heme oxygenase 1 expression and attenuates liver ischemia/reperfusion injury by inhibiting apoptosis. AB - The aim of the present study was to investigate the preconditioning effect and underlying mechanisms of cobalt-protoporphyrin (CoPP) in a mouse model of liver ischemia-reperfusion (I/R) injury. Mice were divided into five groups: Sham operated (control), I/R, I/R + CoPP, I/R + CoPP and zinc-protoporphyrin (ZnPP) and I/R + ZnPP. Serum levels of aspartate transaminase (AST) and alanine aminotransferase (ALT) were detected using commercial kits. The expression of the pro-apoptotic protein caspase-3 was detected by immunohistochemistry and the expression levels of the anti-apoptotic protein B-cell lymphoma 2 (Bcl-2) and heme oxygenase 1 (HO-1) were analyzed by western blotting. Sections of liver tissue were stained with hematoxylin and eosin to observe pathologic alterations. Furthermore, hepatocyte apoptosis was detected using a terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay. AST and ALT levels of the CoPP preconditioned group were significantly reduced compared with the IR injury group (P<0.05) and liver damage was attenuated. The expression levels of the pro apoptotic protein caspase3 was inhibited and those of HO-1 and Bcl-2 were increased in the CoPP group compared with the I/R group; the opposite results were observed in the ZnPP group. Furthermore, the percentage of apoptotic cells as detected by TUNEL was significantly decreased in the CoPP group compared with the I/R group (P<0.05); these protective effects were abrogated by ZnPP. In conclusion, the results of the present study suggested that CoPP may induce HO-1 overexpression and produce anti-apoptotic effects in liver I/R injury. PMID- 29328471 TI - Prostaglandin E2 receptor EP4 is involved in the cell growth and invasion of prostate cancer via the cAMP-PKA/PI3K-Akt signaling pathway. AB - Prostate cancer (PCa) is one of the most prevalent diagnosed malignancies globally. Previous studies have demonstrated that prostaglandin E2 (PGE2) is closely associated with the tumorigenesis and progression of PCa. However, the underlying molecular mechanisms remain unclear and require further investigation. Matrix metalloproteinases (MMPs), receptor activator of nuclear factor-kappaB ligand (RANKL) and runt-related transcription factor 2 (RUNX2), which are involved in cell growth and bone metastasis, are frequently activated or overexpressed in various types of cancer, including PCa. The present study was designed to investigate the associations between PGE2 and the PGE2 receptor EP4, and MMPs, RANKL and RUNX2 in PCa, and to define their roles in PCa cell proliferation and invasion in addition to understanding the molecular mechanisms. The results of western blotting and reverse transcription-quantitative polymerase chain reaction demonstrated that the protein and the mRNA expression levels of MMP-2, MMP-9, RANKL and RUNX2 in PC-3 cells were significantly upregulated by treatment with PGE2, respectively, and knockdown of these proteins blocked PGE2 induced cell proliferation and invasion in PC-3 cells, as determined by Cell Counting Kit-8 and Matrigel invasion assays, respectively. The effect of PGE2 on the protein and mRNA expression levels was primarily regulated via the EP4 receptor. EP4 receptor signaling activates the cyclic (c)AMP-protein kinase A (PKA) signaling pathway, and forskolin, an activator of adenylate cyclase (AC), exhibited similar effects to an EP4 receptor agonist on the protein expression, while SQ22536, an inhibitor of AC, inhibited the protein expression. These results confirmed that the AC/cAMP pathway may be involved in EP4 receptor mediated upregulation of protein expression. By using a specific inhibitor of PKA, it was also demonstrated that cAMP/PKA was also involved in the EP4 receptor mediated upregulation of protein expression. In addition to the signaling pathway involving PKA, the EP4 receptor also exerts activities through activation of Akt kinase. The results in the present study confirmed the hypothesis that EP4 receptor-mediated protein expression in PCa cells that were pretreated with a specific inhibitor of phosphatidylinositol 3-kinase (PI3K) was significantly inhibited. In conclusion, the results of the present study indicate that PGE2 significantly upregulated the mRNA and protein expression levels of the MMP-2, MMP-9, RANKL and RUNX2, and the EP4 receptor was involved in the cell proliferation and invasion of PCa via the cAMP-PKA/PI3K-Akt signaling pathway. These results may provide novel insight into potential therapeutic strategies for the prevention and treatment of PCa. PMID- 29328473 TI - Detection of high-grade neoplasia in air-dried cervical PAP smears by a microRNA based classifier. AB - Recent studies have shown that changes in the expression levels of certain microRNAs correlate with the degree of severity of cervical lesions. The aim of the present study was to develop a microRNA-based classifier for the detection of high-grade cervical intraepithelial neoplasia (CIN >=2) in cytological samples from patients with different high-risk human papillomavirus (HR-HPV) viral loads. For this purpose, raw RT-qPCR data for 25 candidate microRNAs, U6 snRNA and human DNA in air-dried PAP smears from 174 women with different cervical cytological diagnoses, 144 of which were HR-HPV-positive [40 negative for intraepithelial lesion or malignancy (NILM), 34 low-grade squamous intraepithelial lesions (L SIL), 57 high-grade squamous intraepithelial lesions (H-SIL), 43 invasive cancers], were statistically processed. The expression level changes of various individual microRNAs were found to be significantly correlated with the cytological diagnosis but the statistical significance of this correlation was critically dependent on the normalization strategy. We developed a linear classifier based on the paired ratios of 8 microRNA concentrations and cellular DNA content. The classifier determines the dimensionless coefficient (DF value), which increases with the severity of cervical lesion. The high- and low-grade CINs were better distinguished by the microRNA classifier than by the measurement of individual microRNA levels with the use of traditional normalization methods. The diagnostic sensitivity of detecting high-grade lesions (CIN >=2) with the developed microRNA classifier was 83.4%, diagnostic specificity 81.2%, ROC AUC=0.913. The analysis can be performed with the same nucleic acid preparation as used for HPV testing. No statistically significant correlation of the DF value and HR-HPV DNA load was found. The DF value and the HR HPV presence and viral DNA load may be regarded as independent criteria that can complement each other in molecular screening for high-grade cervical intraepithelial neoplasia. Although it has several limitations, the present study showed that the small-scale analysis of microRNA signatures performed by simple PCR-based methods may be useful for improving the diagnostic/prognostic value of cervical screening. PMID- 29328472 TI - Combined analysis of gene expression and genome binding profiles identified potential therapeutic targets of ciclopirox in Ewing sarcoma. AB - Ciclopirox (CPX) is a synthetic antifungal drug that is mainly used to treat dermatomycoses. The aim of the present study was to determine whether CPX could influence Ewing sarcoma progression. The present study suggested that CPX treatment may inhibit Ewing sarcoma (ES) progression through Ewing sarcoma breakpoint region 1-Friend leukemia integration 1 (EWS-FLI1), a common fusion transcript structure in patients with ES. To determine the underlying mechanisms of ES progression, cross analysis was conducted on three high-throughput genome or transcript me datasets from the Gene Expression Omnibus. The results indicated that CPX may inhibit ES growth by affecting vasculature development and DNA replication. A combination of genome-wide expression and binding profiles revealed several potential targets for CPX in ES, including collagen type I alpha2 chain, N-myc proto-oncogene and transforming growth factor beta1, which contained significantly enriched binding peaks of FLI1. In addition, network analysis, including a protein-protein interaction network and a transcription regulatory network, provided further detailed information about the roles of CPX in ES. This study may provide a novel solution for ES treatment and may also aid in improving its prognosis. PMID- 29328474 TI - Inhibition of miR-34a prevents endothelial cell apoptosis by directly targeting HDAC1 in the setting of atherosclerosis. AB - Despite recent medical advances, atherosclerosis is a global burden accounting for numerous mortalities and hospital admissions. MicroRNAs (miRNAs/miRs) regulate cardiovascular biology and disease, but the role of microRNA-34a in atherosclerosis remains unclear. In the present study, it was demonstrated that miR-34a was highly expressed in atherosclerotic lesions and oxidized low-density lipoprotein (Ox-LDL)-treated human aortic endothelial cells (HAECs) (atherosclerotic cell model) using reverse transcription-quantitative polymerase chain reaction. The expression of histone deacetylase (HDAC) 1 was reduced in atherosclerotic lesions and Ox-LDL treated HAECs. TargetScan predicted that HDAC1 is the potential target of miR-34a and the double-luciferase reporter assay confirmed that HDAC1 was directly targeted by miR-34a. Furthermore, miR-34a inhibitor significantly enhanced the cell viability of HAECs and the cell apoptosis was suppressed. In addition, the expression of apoptotic-related proteins was detected by western blotting. The results showed that miR-34a inhibitor significantly upregulated B-cell lymphoma 2, procaspase-3, procaspase-9 and proto-oncogene c-Myc protein expression, and downregulated the expression of p21. In contrast, co-transfection of HDAC1-small interfering RNA and miR-34a inhibitor eliminated the effects of miR-34a on HAECs. This indicated that miR-34a inhibitor promoted cell viability and prevented cell apoptosis of HAECs through regulating HDAC1. In conclusion, it was demonstrated that miR-34a promoted atherosclerotic formation by modulating the proliferation and apoptosis of HAECs, and regulating the expression of apoptosis-related proteins by targeting HDAC1. PMID- 29328475 TI - Heat shock protein 27 knockdown using nucleotide-based therapies enhances sensitivity to 5-FU chemotherapy in SW480 human colon cancer cells. AB - Heat shock protein 27 (Hsp27) is a chaperone protein of low molecular weight that is produced in response to various stresses and has a cytoprotective function. In the present study we found that there is a strong correlation between sensitivity to 5-fluorouracil (5-FU) and the expression of Hsp27 in colorectal cancer. Apatorsen is an antisense oligonucleotide that targets Hsp27 and has various antitumor effects in some types of cancer, such as bladder and prostate. Although several clinical studies are currently studying apatorsen in many malignancies, to date no promising results have been reported for colorectal cancer. In the present study, we examined the impact of Hsp27 downregulation (via apatorsen) on 5-FU sensitivity in colon cancer both in vitro and in vivo. In vitro, apatorsen significantly decreased the levels of Hsp27 in a dose-dependent manner in human colon cancer SW480 cells. A cell proliferation assay revealed that although apatorsen did not inhibit tumor growth, it resulted in greater 5-FU sensitivity in comparison with treatment with OGX-411 (control). In vivo, intraperitoneal injection of apatorsen decreased the levels of Hsp27 in subcutaneous tumors in a xenograft mouse model using SW480 cells and enhanced 5-FU sensitivity, compared to controls. Although further research is warranted, the present study confirmed that concurrent treatment with Hsp27 knockdown using apatorsen and 5-FU could be a promising therapy for colon cancer. PMID- 29328477 TI - Knockdown of ubiquitin-specific peptidase 39 inhibits the malignant progression of human renal cell carcinoma. AB - Ubiquitin specific peptidase 39 (USP39) serves important roles in mRNA processing and is involved in tumorigenesis of multiple solid malignancies. However, the influence and underlying mechanism of USP39 on human renal cell carcinomas (RCC) remain to be elucidated. The current study investigated the functional roles of USP39 in human RCC cell lines. siRNA-mediated RNA interference was used to downregulate USP39 in RCC cells. CCK-8, wound healing and invasion assays were performed to assess the proliferative ability and metastatic potential. The cell cycle distribution and apoptosis were evaluated by flow cytometry. The activity of signaling pathways and the expression of cell cycle-related proteins were detected by western blot analysis. The siRNA-directed RNA interference targeting USP39 could effectively downregulate the expression level of USP39 in two RCC cell lines. Depletion of USP39 by siRNA significantly suppressed cell growth and decreased invasive capacity of RCC cells. Silencing of USP39 induced cell apoptosis and cell cycle arrest at G2/M phase. Additionally, the expression levels of apoptotic and G2/M phase-related proteins were notably decreased following depletion of USP39. Mechanistically, downregulation of USP39 blocked the activation of Akt and extracellular signal regulated kinase signaling pathways in RCC cells. These findings indicate that USP39 may serve as an oncogenic factor in RCC and could be a potential therapeutic candidate for human RCCs. PMID- 29328476 TI - Effect of a synthetic inhibitor of urokinase plasminogen activator on the migration and invasion of human cervical cancer cells in vitro. AB - As a notable feature of malignant tumors, invasion and metastasis are important events in the process of tumor progression. Amiloride, a synthetic inhibitor of urokinase plasminogen activator (uPA), is involved in these events. To evaluate the therapeutic value of amiloride in cervical cancer, HeLa cells were used as in vitro cellular models. The migration and invasion abilities of HeLa cells, in addition to the mRNA expression of matriptase, uPA, uPA receptor and 72 kDa type IV collagenase (MMP-2), were detected using scratch assays, Transwell chamber assays and reverse transcription-quantitative polymerase chain reaction (RT qPCR). The results of RT-qPCR demonstrated that the mRNA expression of uPA and MMP-2 in HeLa cells was downregulated significantly in a dose-dependent manner when incubated with various concentrations of amiloride for 24 h. The migration distance of HeLa cells was significantly shorter at 6, 12 and 24 h following incubation with amiloride (P<0.01), and there was a positive correlation between cell migratory ability and cellular uPA protein expression level (r=0.955, P<0.01). The number of HeLa cells that penetrated the Matrigel following incubation for 24 h with different concentrations of amiloride decreased significantly compared with the control group, indicating that cell invasiveness was positively correlated with the protein expression level of uPA in the cells (r=0.993, P<0.01). The present study demonstrated that amiloride was able to specifically inhibit the mRNA expression levels of uPA in HeLa cells, and sequentially downregulate the mRNA expression of downstream MMP-2 in the uPA system, thereby suppressing the migratory and invasive ability of HeLa cells. Therefore, amiloride may be a promising therapeutic target for the treatment of cervical cancer. PMID- 29328478 TI - Arctigenin exerts protective effects against myocardial infarction via regulation of iNOS, COX-2, ERK1/2 and HO-1 in rats. AB - The present study aimed to determine the protective effects of arctigenin against myocardial infarction (MI), and its effects on oxidative stress and inflammation in rats. Left anterior coronary arteries of Sprague-Dawley rats were ligated, in order to generate an acute MI (AMI) model. Arctigenin was administered to AMI rats at 0, 50, 100 or 200 umol/kg. Western blotting and ELISAs were performed to analyze protein expression and enzyme activity. Arctigenin was demonstrated to effectively inhibit the levels of alanine transaminase, creatine kinase-MB and lactate dehydrogenase, and to reduce infarct size in AMI rats. In addition, the activity levels of malondialdehyde, interleukin (IL)-1beta and IL-6 were significantly suppressed, and the levels of glutathione peroxidase, catalase and superoxide dismutase were significantly increased by arctigenin treatment. Arctigenin treatment also suppressed the protein expression levels of inducible nitric oxide synthase (iNOS), cyclooxygenase 2 (COX-2) and heme oxygenase 1 (HO 1), and increased the protein expression levels of phosphorylated-extracellular signal-regulated kinase 1/2 (p-ERK1/2) in AMI rats. Overall, the results of the present study suggest that arctigenin may inhibit MI, and exhibits antioxidative and anti-inflammatory effects through regulation of the iNOS, COX-2, ERK1/2 and HO-1 pathways in a rat model of AMI. PMID- 29328480 TI - Acylated and unacylated ghrelin inhibit apoptosis in myoblasts cocultured with colon carcinoma cells. AB - Cancer cachexia is a life-threatening syndrome associated with myofiber damage. Tumor factors impair muscle regeneration by promoting myoblast apoptosis. Ghrelin is a multifunctional hormone with an anti-apoptotic effect, but its mechanism of action is not fully understood. In the present study, we investigated whether the coculturing of C2C12 myoblasts with CT26 colon carcinoma cells may induce myoblast apoptosis, and whether acylated ghrelin (AG) and unacylated ghrelin (UnAG) may exert anti-apoptotic effects. We found that the coculture induced myoblast apoptosis and increased tumor necrosis factor (TNF)-alpha concentrations in the culture medium. Moreover, the coculture increased c-Jun N-terminal kinase (JNK) activity, suppressed Akt activity, increased the mitochondrial Bax/Bcl-2 ratio, impaired mitochondrial membrane potential (Deltapsim), increased the cytosolic cytochrome c levels, and activated the caspase-3/poly (ADP-ribose) polymerase (PARP) cascade in myoblasts. We also found that either AG or UnAG inhibited these changes. The present study describes a novel in vitro model that can be employed to investigate cancer-induced myoblast apoptosis, and our findings suggest a possible use for AG and UnAG in treating cancer cachexia. PMID- 29328479 TI - The human umbilical cord stem cells improve the viability of OA degenerated chondrocytes. AB - Osteoarthritis (OA) affects a large number of patients; however, human umbilical cord stem cells exhibit therapeutic potential for treating OA. The aim of the present study was to explore the interaction between human umbilical cord stem cells and degenerated chondrocytes, and the therapeutic potential of human umbilical cord stem cells on degenerated chondrocytes. Human umbilical cord derived mesenchymal stem cells (hUC-MSCs) were harvested from human umbilical cords, and flow cytometry was used to analyze the surface antigen markers, in addition, chondrogenic, osteogenic and adipogenic differentiation on the cells was investigated. OA cells at P3 were cocultured with hUC-MSCs in a separated co culture system, and reverse transcription-polymerase chain reaction and western blot were used to evaluate the mRNA, and protein expression of collagen type II (Col2), SRY-box 9 (sox-9) and aggrecan. The level of inflammatory cytokines, tumor necrosis factor-alpha, interleukin (IL)-1beta, IL-6, IL-10, were analyzed by ELISA in the supernatant. hUC-MSCs grow in a fibroblastic shape with stable proliferation. hUC-MSCs expressed cluster of differentiation 44 (CD44), CD73, CD90, CD105; while did not express CD34, CD45, CD106, CD133. After multi induction, hUC-MSCs were able to differatiate into adipogenic, osteogenic and chondrogenic lineage. hUC-MSCs inhibited the expression of matrix metalloproteinase-13, collagen type X alpha1 chain and cyclooxygenase-2 in OA chondrocytes, and enhanced the proliferation of OA chondrocytes, while OA chondrocytes stimulated the production of Col2, sox-9 and aggrecan and promoted hUC-MSCs differentiate into chondrocytes. Flow cytometry analysis demonstrated hUC-MSCs have a predominant expression of stem cell markers, while the hematopoietic and endothelial markers were absent. Osteogenic, chondrogenic and adipogenic differentiation was observed in certain induction conditions. hUC-MSCs improved the proliferation of OA chondrocytes and downregulated the expression of inflammatory cytokines, while OA chondrocytes promoted MSCs to differentiate into chondrocytes. Taken together, the co-culture of hUC-MSCs and OA chondrocytes may provide a therapeutic potential in OA treatment. PMID- 29328481 TI - TTF1-NP induces protective autophagy during apoptosis by inhibiting the Akt/mTOR pathway and activating JNK in human liver cancer cells. AB - TTF1-NP is a flavonoid nanoparticle based on 5,2',4'-trihydroxy-6,7,5' trimethoxyflavone (TTF1), which is derived from the medicinal plant Sorbaria sorbifolia that grows in the Changbai Mountain. We previously demonstrated antitumor effects of TTF1-NP in human hepatoma including induction of apoptosis and inhibition of angiogenesis, migration and invasion. Herein, we examined the effects of TTF1-NP on autophagy and its relationship with apoptosis, and explored potential underlying mechanisms in human hepatoma cell lines. We conducted cell viability assays, Annexin V/propidium iodide double staining, Hoechst staining, monodansylcadaverine staining, transmission electron microscopy, green fluorescent protein-light chain 3 plasmid transfection and western blots. We found that TTF1-NP induced apoptosis and autophagy in HepG2 and SMMC-7721 cells. Pretreatment with the autophagy inhibitor 3-methyladenine promoted TTF1-NP induced apoptosis. TTF1-NP decreased levels of phosphorylated (p)-Akt, p-mTOR and p-ERK1/2 and increased p-JNK levels in the two cell lines. Treating cells with insulin, SP600125 and U0126 indicated that the Akt/mTOR pathway and JNK were involved in TTF1-NP-induced autophagy. Together, these findings suggest that TTF1 NP induced protective apoptosis-related autophagy by modulating the Akt/mTOR and JNK pathways in HepG2 and SMMC-7721 cells. Therefore, autophagy may be a potential target for TTF1-NP in human hepatoma therapy. PMID- 29328482 TI - Cytisine induces endoplasmic reticulum stress caused by calcium overload in HepG2 cells. AB - Cytisine, a quinolizidine alkaloid, is one of the major bioactive components found in the small tree Sophora Alopecuraides L., and is a traditional Chinese medicine that is used for treating hepatitis and liver cancer. In the 1960s, quinolizidine alkaloids were reported to exhibit inhibitory effects on tumour cell proliferation in several types of cancer cells. However, few studies have investigated the effect of cytisine on liver cancer. Our team confirmed that cytisine induced apoptosis in HepG2 cells via a mitochondrial pathway. The primary aim of the present study was to evaluate the endoplasmic reticulum (ER) stress caused by calcium overload in cytisine-induced apoptosis in HepG2 cells and the molecular mechanisms of this phenomenon. In addition, the present study was undertaken to evaluate the expression of alpha7-nAChR when apoptosis was induced by cytisine in HepG2 cells. In the present study, transmission electron microscopy was used to observe the morphological appearance of HepG2 cells. The apoptosis of the cells with cytoplasmic vacuolization was significant under electron microscopy. Apoptotic bodies, the expansion of the ER, and swelling of mitochondria were observed in the HepG2 cells after cytisine treatment. Flow cytometric analysis demonstrated that the apoptosis rate of HepG2 cells was upregulated. In addition, the intracellular calcium concentration was detected by laser confocal fluorescence microscopy. The laser confocal fluorescence microscopy showed that the calcium concentration was increased in a dose dependent manner. The activity of caspase-4 was evaluated by an enzyme-linked analyser, and the expression levels of CHOP, JNK, p-JNK and alpha7-nAChR were assessed via western blot analysis. In the present study, we observed that cytisine induced ER stress-inducing factors and CHOP and p-JNK1/2 protein expression, and it increased the JNK protein expression in the HepG2 cells. Furthermore, alpha7-nAChR protein expression was promoted in a dose-dependent manner after cytisine treatment. These findings suggest that cytisine induced the ER stress-mediated apoptotic pathway via activation of CHOP, JNK and caspase-4 in HepG2 cells, and cytisine is a potential new target compound for nAchRs (nicotinic acetylcholine receptors) to treat liver cancer. PMID- 29328483 TI - miR-98-5p promotes osteoblast differentiation in MC3T3-E1 cells by targeting CKIP 1. AB - Casein kinase 2-interacting protein 1 (CKIP-1) is a negative regulator for bone formation. Previously, using bioinformatics analysis, CKIP-1 has been predicted to serve the role of target gene of miR-98-5p. In the present study, the potential role of miR-98-5p in regulating osteoblast differentiation through CKIP 1 was investigated. Following pre-treatment with microRNA (miR)-98-5p agomir or miR-98-5p antagomir, MC3T3-E1 cells were cultured in an osteoinductive medium. Subsequently, the expression of miR-98-5p, CKIP-1 and levels of osteoblast differentiation markers, including alkaline phosphatase, matrix mineralization, osteocaicin, collagen type I, runt-related transcription factor 2 and osteopontin were assayed. Using a dual-luciferase reporter assay, it was demonstrated that CKIP-1 was the target gene of miR-98-5p. miR-98-5p was upregulated as a result of treatment with miR-98-5p agomir and promoted osteoblast differentiation. Conversely, miR-98-5p antagomir inhibited miR-98-5p expression and osteoblast differentiation. miR-98-5p targeted CKIP-1 by binding to its 3'-untranslated region. Furthermore, miR-98-5p overexpression decreased the protein levels of CKIP-1 and inhibition of miR-98-5p increased the protein levels of CKIP-1. The results of the present study indicated that CKIP-1 was a target gene of miR-98-5p and that miR-98-5p regulated osteoblast differentiation in MC3T3-E1 cells by targeting CKIP-1. PMID- 29328484 TI - Additive antitumour effect of D-allose in combination with cisplatin in non-small cell lung cancer cells. AB - D-allose is a rare sugar which has been shown to have growth inhibitory effects in several kinds of malignancies. However, the effect of D-allose on lung cancer progression has not been previously studied. To investigate the antitumour effect of D-allose in lung cancer cells and its mechanism, human non-small cell lung cancer (NSCLC) cell lines (squamous cell carcinomas: EBC1 and VMRC-LCD; adenocarcinomas: A549, HI1017, RERF-LC-A1 and NCI-H1975) were treated with D allose (50 mM) with or without cisplatin (5 uM). D-allose inhibited cell growth, particularly in EBC1 and VMRC-LCD cells. In combination with cisplatin, D-allose had a synergistic growth inhibitory effect. D-allose increased the expression of thioredoxin interacting protein (TXNIP) at mRNA and protein levels. D-allose decreased the proportion of cells in G1 phase and increased those in S and G2/M phases. For in vivo experiments, EBC1 cells were inoculated into BALB/c-nu mice. After tumourigenesis, D-allose and cisplatin were injected. In this mouse xenograft model, additional treatment with D-allose showed a significantly greater tumour inhibitory effect compared with cisplatin alone, accompanied by lower Ki-67 and higher TXNIP expression. In conclusion, D-allose inhibited NSCLC cell proliferation in vitro and tumour progression in vivo. In combination with cisplatin, D-allose had an additional antitumour effect. Specifically, increased TXNIP expression and subsequent G2/M arrest play a role in D-allose-mediated antitumour effects in NSCLC. PMID- 29328485 TI - Knockdown of hnRNP A2/B1 inhibits cell proliferation, invasion and cell cycle triggering apoptosis in cervical cancer via PI3K/AKT signaling pathway. AB - Cervical cancer is currently one of the major threats to women's health. The overexpression of heterogeneous nuclear ribonucleoprotein A2/B1 (hnRNP A2/B1) as the biomarker has been investigated in various cancers. In our previous study, we found that lobaplatin induced apoptosis and cell cycle arrest via downregulation of proteins including hnRNP A2/B1 in cervical cancer cells. However, the underlying relationship between hnRNP A2/B1 and cervical cancer remained largely unknown. hnRNP A2/B1 knock-down in HeLa and CaSki cells was performed by shRNA transfection. The expression of hnRNP A2/B1 was detected by western blot and Quantitative Real-time PCR. Cell proliferation, migration, invasion and the IC50 of lobaplatin and irinotecan were determined by MTT assay, Transwell assay, Plate colony formation assay and wound healing assay. Flow cytometry was perfomed to investigate cell apoptosis and the cell cycle. The expression of PI3K, AKT, p AKT, p21, p27, caspase-3, cleaved caspase-3 were revealed by western blot. Nude mouse xenograft model was undertaken with HeLa cells and the xenograft tumor tissue samples were analyzed for the expression of PCNA and Ki-67 by immunohistochemistry and the cell morphology was evaluated by hematoxylin and eosin (H&E). Results revealed that hnRNP A2/B1 was successfully silenced in HeLa and CaSki cells. hnRNP A2/B1 knock-down significantly induced the suppression of proliferation, migration, invasion and also enhancement of apoptosis and reduced the IC50 of lobaplatin and irinotecan. The expression of p21, p27 and cleaved caspase-3 in shRNA group were significantly upregulated and the expression of p AKT was reduced both in vitro and in vivo. The results of immunohistochemistry showed that PCNA and Ki-67 were significantly downregulated in vivo. The growth of nude mouse xenograft tumor was significantly reduced by hnRNP A2/B1 knock down. Taken together, these data indicate that inhibition of hnRNP A2/B1 in cervical cancer cells can inhibit cell proliferation and invasion, induce cell cycle arrestment and trigger apoptosis via PI3K/AKT signaling pathway. In addition, after silencing hnRNP A2/B1 can increase the sensitivity of cervical cancer cells to lobaplatin and irinotecan. PMID- 29328488 TI - Synthesis and application of 131I-fulvestrant as a targeted radiation drug for endocrine therapy in human breast cancer. AB - The aim of this study was to label fulvestrant (an endocrine therapy drug for breast cancer) with radioiodine and to evaluate the effect of 131I-fulvestrant on inhibiting the growth of human breast cancer and its influence on major organs in nude mice. Fulvestrant was labeled with radioiodine using a modified chloramine T method, and its chemical properties were assessed using traditional methods. The binding affinity of 131I-fulvestrant was measured by radioligand binding assays, and its antiproliferative activity was determined by MTT assays. The ability of 131I-fulvestrant to kill MCF-7 and MDA-MB-231 cells was also detected by MTT assays. We established MCF-7 cell xenografts in nude mice and monitored tumor growth and critical organ function. When the labeling reactions were conducted for 5 min at room temperature at pH 7.5, the radiochemical yield of the 131I labeling to fulvestrant was 62.34+/-1.8%, the radiochemical purity was 98.6+/ 3.4%, and the half maximal inhibitory concentration (IC50) at 48 h was 35 uCi. 131I-fulvestrant was stable, and its binding affinity to estrogen receptor positive (ER+) MCF-7 cells was also retained. In addition, 131I-fulvestrant exhibited similar cytotoxicity in MCF-7 and MDA-MB-231 cells, although MCF-7 cells showed a slightly more pronounced response. 131I-fulvestrant continuously exerted a tumor suppressive effect on MCF-7 cells but not on MDA-MB-231 cells (P<0.05). Upon intravenous injection of 131I-fulvestrant into nude mice, the radioactivity distribution corresponded to ER expression patterns and was primarily confined to the tumor. 131I-fulvestrant exhibited a precise growth inhibition effect on MCF-7 breast cancer cells, and its effects on general conditions of nude mice and their major organs were manageable. Therefore, radioiodine labeling of fulvestrant was successful and could be used to develop novel drugs for breast cancer by superimposing the benefits of radiotherapy and endocrine therapy. PMID- 29328487 TI - Combination of gemcitabine and erlotinib inhibits recurrent pancreatic cancer growth in mice via the JAK-STAT pathway. AB - Compared to single gemcitabine treatment, the combination of gemcitabine and erlotinib has shown effective response in patients with locally advanced or metastatic pancreatic cancer. However, the combination therapy has not proven effective in patients with pancreatic cancer after R0 or R1 resection. In the present study, a nude mice model of orthotopic xenotransplantation after tumor resection was established using pancreatic cancer cell lines, BxPC-3 and PANC-1. Mice were divided in four groups (each with n=12) and were treated as follows: the control group received a placebo via intraperitoneal injection (i.p.), while the other three groups were treated with gemcitabine (50 mg/kg i.p., twice a week), erlotinib (50 mg/kg oral gavage, once every three days), and combined treatment of gemcitabine and erlotinib, respectively. The treatment lasted for 21 days, after which all mice were sacrificed and tumors were examined ex vivo. We determined that the combination of gemcitabine and erlotinib inhibited recurrent tumor growth and induced apoptosis in vivo by downregulating phosphorylation levels of JAKs and STATs, which in turn downregulated the downstream proteins HIF 1alpha and cyclin D1, and upregulated caspase-9 and caspase-3 expression. To sum up, the combination of gemcitabine with erlotinib was effective in treating patients with pancreatic cancer after R0 or R1 resection. PMID- 29328489 TI - Antibody-nanoparticle conjugate constructed with trastuzumab and nanoparticle albumin-bound paclitaxel for targeted therapy of human epidermal growth factor receptor 2-positive gastric cancer. AB - Gastric cancer (GC) is the most lethal malignancy in the digestive system. This study investigated an antibody-nanoparticle conjugate (ANC) constructed with trastuzumab (Herceptin(r)) and nanoparticle albumin-bound paclitaxel (nab paclitaxel, Abraxane(r)) (trastuzumab/nab-paclitaxel) as a novel strategy of targeted therapy for human epidermal growth factor receptor 2 (HER2) positive GC. The ANC was fabricated with trastuzumab and nab-paclitaxel by a 'one-step' synthesis using EDC/NHS. In vitro antitumor efficacy was evaluated by cell viability, apoptosis rate and cell cycle of HER2-positive GC NCI-N87 cells and compared with paclitaxel (Taxol(r)), nab-paclitaxel and trastuzumab/nab paclitaxel. In addition, GC xenograft models were established to evaluate antitumor efficacy in vivo. These results demonstrated that trastuzumab/nab paclitaxel was spherical with a suitable size (139.18+/-32.06 nm). The half maximal inhibitory concentration (IC50) for NCI-N87 cells was 0.24+/-0.08, 0.13+/ 0.03 and 0.048+/-0.01 ug/ml of paclitaxel, nab-paclitaxel and trastuzumab/nab paclitaxel, respectively. Compared with paclitaxel and nab-paclitaxel, trastuzumab/nab-paclitaxel could induce a higher rate of apoptosis and significant G2/M arrest. At 4 weeks after treatment, tumor-bearing mice had a mean tumor volume of 233+/-24 mm3 treated by trastuzumab/nab-paclitaxel, 559+/-97 mm3 by nab-paclitaxel, 871+/-94 mm3 by paclitaxel and 1,576+/-190 mm3 by PBS as control, respectively, which showed that trastuzumab/nab-paclitaxel could surpass nab-paclitaxel and paclitaxel in antitumor effect. Furthermore, the NIR imaging indicated that trastuzumab/nab-paclitaxel labeled by NIR-797 could more precisely focus on tumor regions. In conclusion, trastuzumab/nab-paclitaxel could mediate targeted therapy and enhance antitumor efficacy, which could represent a novel therapeutic agent for HER2-positive GC. PMID- 29328486 TI - miR-873 inhibits colorectal cancer cell proliferation by targeting TRAF5 and TAB1. AB - MicroRNA-873 (miR-873) has been reported to be dysregulated in a variety of malignancies, however, the biological function and underlying molecular mechanism of miR-873 in colorectal cancer (CRC) remain unclear. In the present study we found that the expression levels of miR-873 were markedly decreased in CRC cell lines and tissues from patients. Statistical analysis revealed that miR-873 expression was inversely correlated with the disease stage of CRC. Kaplan-Meier survival analysis revealed that patients with CRC with lower miR-873 expression had shorter overall survival rates. Additionally, downregulation of miR-873 enhanced the proliferation of CRC cells, while upregulation of miR-873 reduced this proliferation. Furthermore, we found that tumor necrosis factor (TNF) receptor-associated factor 5 (TRAF5) and TGF-beta activated kinase 1 (MAP3K7) binding protein 1 (TAB1) were direct targets of miR-873 in CRC cells. A luciferase assay revealed that ectopic expression of miR-873 significantly reduced nuclear factor kappaB (NF-kappaB) luciferase activity, while ectopic expression of miR-873 inhibitor enhanced luciferase activity, suggesting that downregulation of miR-873 can activate NF-kappaB signaling. Therefore, our findings established a tumor-suppressive role for miR-873 in the inhibition of CRC progression, which may be employed as a novel prognostic marker and as an effective therapeutic target for CRC. PMID- 29328491 TI - MicroRNA-let-7a regulates cell autophagy by targeting Rictor in gastric cancer cell lines MGC-803 and SGC-7901. AB - miR-let-7a is the most widely studied miRNA, whose functions have been well established by scientists in both carcinogenesis and progression of human cancer, including gastric cancer (GC). However, to date there is a lack of information concerning the relationship between miR-let-7a and cellular autophagy. Using western blotting and immunofluorescence, we determined that upregulation of miR let-7a led to increased cellular autophagic level, whereas miR-let-7a suppression decreased autophagy activity in GC cells. To further elucidate the mechanisms underlying this, we screened potential targets of miR-let-7a using bioinformatics analyses, validated by a series of assays. Our results indicated that Rptor independent companion of mTOR complex 2 (Rictor) was a direct target of miR-let 7a. In addition, rescue experiments in vitro showed that miR-let-7a promoted cellular autophagic level by inhibiting Rictor expression in GC cells. Furthermore, as an upstream executor of Akt-mTOR signaling pathway, we found that Rictor elaborated its effect on autophagy by phosphorylating Akt and mTOR, and this regulatory process could also be mediated by miR-let-7a. Taken together, our results present a novel role for miR-let-7a in GC which modulates autophagy by targeting Rictor, following the regulation of Akt-mTOR signal pathway. PMID- 29328490 TI - Galectin-1 expression in activated pancreatic satellite cells promotes fibrosis in chronic pancreatitis/pancreatic cancer via the TGF-beta1/Smad pathway. AB - Chronic pancreatitis/pancreatic cancer (CP/PC) is characterized by fibrous connective tissue proliferation induced by activated pancreatic stellate cells (PSCs). Galectin-1 is upregulated in activated PSCs and is important for the continuing activation of PSCs. The aim of this study was to evaluate the effect of galectin-1 derived from activated PSCs on the progression of fibrosis in CP/PC. To this end, the expression of desmin, alpha-SMA, galectin-1, fibronectin and collagen type I in normal pancreatic, CP and PC tissues, as well as quiescent/activated PSCs, was investigated. The proliferation rate and migration ability of control, galectin-1-overexpressing and galectin-1-silenced PSCs were also evaluated, as well as the mRNA and protein expression of fibronectin, collagen type I, alpha-SMA, tissue inhibitors of metalloproteinases (TIMP)-1, MMP 2, Smad2 and TGF-beta1. Furthermore, the effect of adding a TGF-beta1 receptor inhibitor on the expression of these proteins was examined. The results revealed that the expression profile of desmin, alpha-SMA, galectin-1, fibronectin and collagen type I in the normal pancreas was similar to that of quiescent PSCs and the expression profile in CP/PC tissues was similar to that of activated PSCs. Furthermore, galectin-1-overexpressing PSCs exhibited a significantly higher proliferation rate and migration ability, while galectin-1-silenced PSCs exhibited a significantly lower proliferation rate and migration ability than the control PSCs. The expression of fibronectin, collagen type I, alpha-SMA, MMP-2 and TIMP-1 was also significantly higher in the galectin-1-overexpressing PSCs than the control PSCs and this effect was found to be mediated by the TGF beta1/Smad pathway. The trends in the expression of these factors were reversed in the galectin-1-silenced PSCs. From these findings, it can be concluded that overexpression of galectin-1 promotes PSC activity (proliferation and migration) and stimulates fibrosis by increasing extracellular matrix synthesis and decreasing the MMP/TIMP ratio via the TGF-beta1/Smad pathway. Thus, galectin-1 may be a novel candidate for reversing or halting fibrosis progression in CP/PC. PMID- 29328492 TI - Exosomes derived from oxidized LDL-stimulated macrophages attenuate the growth and tube formation of endothelial cells. AB - Oxidized low-density lipoprotein (oxLDL) has a critical role in the development of atherosclerosis. The participation of oxLDL-stimulated macrophages has been well-established in atherosclerosis, however the underlying mechanisms are unclear. Macrophage-derived exosomes are actively released and are involved in numerous physiological and pathological processes. However, the function of exosomes secreted by oxLDL-stimulated macrophages in atherosclerosis remains unknown. Exosomes from oxLDL-treated macrophages and controls were co-cultured with endothelial cells and the exosomes were taken up by endocytosis. Cell Counting Kit-8 and tube formation assay results revealed that exosomes derived from oxLDL-stimulated macrophages reduced the growth and tube formation ability of endothelial cells. Suppression of exosomal secretion by oxLDL-stimulated macrophages rescued the growth and tube formation ability of endothelial cells. Therefore, the results of the present study indicate that oxLDL-stimulated macrophages may attenuate the growth and tube formation of endothelial cells, at least in part through exosomal transfer. This may provide novel targets for the development of atherosclerosis therapeutics. PMID- 29328493 TI - Meta-analysis of mRNA expression profiles to identify differentially expressed genes in lung adenocarcinoma tissue from smokers and non-smokers. AB - Compared to other types of lung cancer, lung adenocarcinoma patients with a history of smoking have a poor prognosis during the treatment of lung cancer. How lung adenocarcinoma-related genes are differentially expressed between smoker and non-smoker patients has yet to be fully elucidated. We performed a meta-analysis of four publicly available microarray datasets related to lung adenocarcinoma tissue in patients with a history of smoking using R statistical software. The top 50 differentially expressed genes (DEGs) in smoking vs. non-smoking patients are shown using heat maps. Additionally, we conducted KEGG and GO analyses. In addition, we performed a PPI network analysis for 8 genes that were selected during a previous analysis. We identified a total of 2,932 DEGs (1,806 upregulated, 1,126 downregulated) and five genes (CDC45, CDC20, ANAPC7, CDC6, ESPL1) that may link lung adenocarcinoma to smoking history. Our study may provide new insights into the complex mechanisms of lung adenocarcinoma in smoking patients, and our novel gene expression signatures will be useful for future clinical studies. PMID- 29328495 TI - Fucoidan downregulates insulin-like growth factor-I receptor levels in HT-29 human colon cancer cells. AB - Fucoidan, a sulfated polysaccharide present in brown seaweed, has demonstrated anticancer activity in lung, breast, liver and colon cells. The insulin-like growth factor (IGF) signaling pathway regulates growth in HT-29 cells through the insulin receptor substrate-1 (IRS-1)/phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) and Ras/Raf/extracellular signal-regulated kinase (ERK) pathways. The aim of the present study was to investigate whether fucoidan downregulates the IGF-IR signaling pathway in HT-29 human colon cancer cells. Fucoidan treatment (0-1,000 ug/ml) was administered for 24 h in HT-29 cells. First, we investigated IRS-1/PI3K/AKT pathway-related protein expression levels following treatment with fucoidan (0-500 ug/ml) using western blot analysis. Fucoidan significantly inhibited the expression of IGF-IR, PTEN, PI3K and AKT as well as their phosphorylated forms (p-IRS-1, p-PI3K and p-AKT). Next, we investigated the effects of fucoidan on Ras/Raf/ERK pathway-related protein expression levels in HT-29 cells. Fucoidan significantly inhibited the expression of IGF-IR, Shc, Ras, SOS, Raf and MEK. HT-29 cells were then incubated in the presence of fucoidan (0 or 250 ug/ml), and IGF-I (10 nM) was added for 0 to 60 min. Immunoprecipitation (IP) experiments showed that fucoidan inhibited IGF-I-induced phosphorylation of IGF-IR, PI3K, Shc (IP, IGF-IR), and phosphorylated IRS-1 and PI3K (IP, IRS-1) compared to the control group. Western blot analysis showed that fucoidan inhibited the expression of IGF-I-induced p-IGF-IR/IGF-IR and p-AKT/AKT, but not p-ERK/ERK. In conclusion, the inhibition of cell viability by fucoidan in HT-29 cells may be due to the downregulation of IGF-IR signaling through the main IRS 1/PI3K/AKT pathway. Fucoidan also partially impacted Ras/Raf signaling in the Ras/Raf/ERK pathway. Therefore, we suggest that fucoidan may be a suitable candidate chemopreventive agent in HT-29 colon cancer cells. PMID- 29328494 TI - Pterostilbene inhibits reactive oxygen species production and apoptosis in primary spinal cord neurons by activating autophagy via the mechanistic target of rapamycin signaling pathway. AB - Autophagy is an important self-adaptive mechanism that is involved in inhibiting reactive oxygen species (ROS) in spinal cord neurons. Pterostilbene, a natural plant extract, has been demonstrated to possess antioxidant effects; however, it has not yet been investigated whether pterostilbene could activate autophagy and protect spinal cord neurons from oxidative stress. In the present study, primary spinal cord neurons of Sprague Dawley rats were cultured. Cell counting kit-8 analysis was used to detect cytotoxicity of pterostilbene. Cells were treated with various doses of pterostilbene for 24 and 48 h, respectively, and H2O2 was used to induce ROS production. Western blot analysis was performed to assess the protein expression of microtubule-associated protein 1 light chain 3 (LC3)-II, Beclin-1, p62, p-p70S6K and p-mechanistic target of rapamycin (mTOR). Furthermore, the green fluorescent protein (GFP)-LC3 assay was used to detect the level of autophagy level and activation mechanism. 2',7'-Dichlorofluorescin diacetate and MitoSOX Red staining were used to detect ROS production, and Terminal deoxynucleotidyl-transferase-mediated dUTP nick end labelling assay was used to analyze apoptosis percentage. ATG5 small interfering (si)RNA transfection was used to analyze the involvement of autophagy. A dose-dependent increase in the expression of LC3-II and Beclin-1, as well as the p62 decline, were observed in the pterostilbene-treated neurons; however, p-p70S6K and p-mTOR expression was inhibited by pterostilbene. Pterostilbene increased the expression of LC3-II in H2O2-treated cells, and GFP-LC3 analysis demonstrated an increased number of autophagosomes. Furthermore, pterostilbene significantly inhibited the ROS production and apoptosis induced by H2O2; however, ATG5 siRNA transfection significantly reversed the protection of pterostilbene. These results indicate that pterostilbene may inhibit the ROS production and apoptosis in spinal cord neurons by activating autophagy via the mTOR signaling pathway. PMID- 29328497 TI - Identification of theranostic biomarkers to improve the stratification of patients with pediatric liver cancer: Opportunities and challenges. PMID- 29328496 TI - Hypotension Risk Based on Vasoactive Agent Discontinuation Order in Patients in the Recovery Phase of Septic Shock. AB - STUDY OBJECTIVES: Patients with septic shock often require vasoactive agents for hemodynamic support; however, the optimal approach to discontinuing these agents once patients reach the recovery phase is currently unknown. The objective of this evaluation was to compare the incidence of hypotension within 24 hours based on the discontinuation order of norepinephrine (NE) and vasopressin (AVP) in patients in the recovery phase of septic shock. DESIGN: Retrospective cohort study. SETTING: The medical, surgical, and neurosciences intensive care units (ICUs) at a large tertiary care academic medical center. PATIENTS: A total of 585 adults in the recovery phase of septic shock who received fixed-dose AVP for at least 6 hours as an adjunct to NE between September 2011 and August 2015 were included. Of these patients, 155 had AVP discontinued first, and 430 had NE discontinued first. MEASUREMENTS AND MAIN RESULTS: Hypotension was evaluated during the 24-hour period after discontinuation of the first vasoactive agent and was defined as mean arterial pressure less than 60 mm Hg with one or more of the following interventions: increased remaining vasoactive agent dose by 25%, reinstitution of the discontinued agent, or administration of at least 1 L of fluid bolus. Time to hypotension was evaluated with survival analysis, and risk of hypotension was evaluated with multivariable Cox proportional hazards regression. No significant difference between groups was noted in the incidence of hypotension within 24 hours (55% in the AVP discontinued first group vs 50% in the NE discontinued first group, p=0.28) or ICU mortality (45.2% vs 40.0%, p=0.26). After adjustment for baseline factors with multivariable Cox proportional hazards regression, having AVP discontinued first was independently associated with an increased risk of hypotension with a time-varying effect that decreased over time (HR(t) = e[1.16-0.08*t] , p<0.001). CONCLUSION: In patients recovering from septic shock treated with concomitant AVP and NE, no significant difference was noted in the incidence of hypotension based on discontinuation order of these agents. PMID- 29328498 TI - A UPLC-MS/MS method for simultaneous determination of five flavonoids from Stellera chamaejasme L. in rat plasma and its application to a pharmacokinetic study. AB - Stellera chamaejasme L. has been used as a traditional Chinese medicine for the treatment of scabies, tinea, stubborn skin ulcers, chronic tracheitis, cancer and tuberculosis. A sensitive and selective ultra-high liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated for the simultaneous determination of five flavonoids (stelleranol, chamaechromone, neochamaejasmin A, chamaejasmine and isochamaejasmin) of S. chamaejasme L. in rat plasma. Chromatographic separation was accomplished on an Agilent Poroshell 120 EC-C18 column (2.1 * 100 mm, 2.7 MUm) with gradient elution at a flow rate of 0.4 mL/min and the total analysis time was 7 min. The analytes were detected using multiple reaction monitoring in positive ionization mode. The samples were prepared by liquid-liquid extraction with ethyl acetate. The UPLC-MS/MS method was validated for specificity, linearity, sensitivity, accuracy and precision, recovery, matrix effect and stability. The validated method exhibited good linearity (r >= 0.9956), and the lower limits of quantification ranged from 0.51 to 0.64 ng/mL for five flavonoids. The intra- and inter-day precision were both <10.2%, and the accuracy ranged from -11.79 to 9.21%. This method was successfully applied to a pharmacokinetic study of five flavonoids in rats after oral administration of ethyl acetate extract of S. chamaejasme L. PMID- 29328499 TI - MAIT cells are chronically activated in patients with autoimmune liver disease and promote profibrogenic hepatic stellate cell activation. AB - : Autoimmune liver diseases (AILDs) are chronic liver pathologies characterized by fibrosis and cirrhosis due to immune-mediated liver damage. In this study, we addressed the question whether mucosal-associated invariant T (MAIT) cells, innate-like T cells, are functionally altered in patients with AILD and whether MAIT cells can promote liver fibrosis through activation of hepatic stellate cells (HSCs). We analyzed the phenotype and function of MAIT cells from AILD patients and healthy controls by multicolor flow cytometry and investigated the interaction between human MAIT cells and primary human hepatic stellate cells (hHSCs). We show that MAIT cells are significantly decreased in peripheral blood and liver tissue of patients with AILD. Notably, MAIT cell frequency tended to decrease with increasing fibrosis stage. MAIT cells from AILD patients showed signs of exhaustion, such as impaired interferon-gamma (IFN-gamma) production and high ex vivo expression of the activation and exhaustion markers CD38, HLA-DR, and CTLA-4. Mechanistically, this exhausted state could be induced by repetitive stimulation of MAIT cells with the cytokines interleukin (IL)-12 and IL-18, leading to decreased IFN-gamma and increased exhaustion marker expression. Of note, repetitive stimulation with IL-12 further resulted in expression of the profibrogenic cytokine IL-17A by otherwise exhausted MAIT cells. Accordingly, MAIT cells from both healthy controls and AILD patients were able to induce an activated, proinflammatory and profibrogenic phenotype in hHSCs in vitro that was partly mediated by IL-17. CONCLUSION: Our data provide evidence that MAIT cells in AILD patients have evolved towards an exhausted, profibrogenic phenotype and can contribute to the development of HSC-mediated liver fibrosis. These findings reveal a cellular and molecular pathway for fibrosis development in AILD that could be exploited for antifibrotic therapy. (Hepatology 2018;68:172-186). PMID- 29328500 TI - LAIR-1 shedding from human fibroblast-like synoviocytes in rheumatoid arthritis following TNF-alpha stimulation. AB - This study examined the expression of the inhibitory receptor, leucocyte associated immunoglobulin (Ig)-like receptor-1 (LAIR-1) in fibroblast-like synoviocytes (FLS) in rheumatoid arthritis (RA) patients to investigate its potential role in the modulation of inflammatory cytokines, matrix metalloproteinases (MMPs) and invasiveness of synoviocytes. LAIR-1 expression in synovial tissues from RA patients, osteoarthritis patients and healthy donors was analysed by immunohistochemistry. The membrane-bound form (mLAIR-1) was detected by flow cytometry. Factors involved in inflammation and MMP activity in FLS were analysed by quantitative polymerase chain reaction (qPCR). LAIR-1 expression was higher in the synovia of the RA patients than those of the osteoarthritis patients. Co-immunostaining of vimentin/LAIR-1 demonstrated that LAIR-1 was localized mainly in FLS in the RA patients. Surprisingly, primary FLS isolated from the RA patients had low levels of mLAIR-1 expression, with cytoplasmic distribution. The extracellular domain of LAIR-1 was shed from the cell surface in response to tumour necrosis factor (TNF)-alpha, and this process could be blocked by serine protease inhibitors. Additional experiments indicated that LAIR 1 over-expression reduced FLS invasion considerably, which reduced simultaneously the mRNA levels of interleukin (IL)-6, IL-8 and MMP-13 in the presence of TNF alpha. Our study demonstrated that LAIR-1 is an anti-inflammatory molecule, and was up-regulated in FLS in the RA patients; however, cell-surface LAIR-1 could be shed from cells in the inflammatory microenvironment in RA. This may weaken the interaction of LAIR-1 with its ligand, thus reducing the anti-inflammatory effects of LAIR-1. These findings suggested that LAIR-1 may be an important factor involved in the mediation of the progressive joint destruction in RA. PMID- 29328501 TI - Cognitive control functions in individuals with obesity with and without binge eating disorder. AB - OBJECTIVE: Deficits in cognitive control are thought to contribute to the maintenance of obesity (OB). Cognitive control is referred to as impulsivity and binge-eating disorder (BED) is characterized by high levels of impulsivity. The present study sought to elucidate which cognitive control functions differentiate between severe OB with and without BED also taking into account hunger as a moderating factor. METHOD: The study included 48 individuals with OB and BED (OB + BED), 48 individuals with OB and no BED (OB - BED) and 48 normal-weight controls (NWC). Hunger was systematically manipulated: participants were instructed to refrain from eating before testing and received either a liquid meal or flavored water. Then, a comprehensive test battery was administered including a food-related go/no-go task and several subtests from the CANTAB. RESULTS: There were no differences between the groups with regard to food-related response inhibition. However, while manipulating hunger had no impact on performance in the go/no-go task, self-reported hunger significantly influenced task performance by increasing inhibition deficits to high-caloric stimuli in OB + BED. With regard to general cognitive control functions, we found that deficits in attention and impulse control in decision-making distinguished OB from NWC, while reversal learning and risk taking in decision-making appeared to be relevant factors when distinguishing OB + BED from OB - BED. DISCUSSION: Our results indicate that self-reported hunger differentially affected food-related response inhibition. Group differences in general cognitive control functions were limited to attention, reversal learning, and decision-making. Future research needs to account for other possible moderating factors, such as mood, food craving, or stress. PMID- 29328502 TI - Hepatocellular carcinoma-related cyclin D1 is selectively regulated by autophagy degradation system. AB - : Dysfunction of degradation machineries causes cancers, including hepatocellular carcinoma (HCC). Overexpression of cyclin D1 in HCC has been reported. We previously reported that autophagy preferentially recruits and degrades the oncogenic microRNA (miR)-224 to prevent HCC. Therefore, in the present study, we attempted to clarify whether cyclin D1 is another oncogenic factor selectively regulated by autophagy in HCC tumorigenesis. Initially, we found an inverse correlation between low autophagic activity and high cyclin D1 expression in tumors of 147 HCC patients and three murine models, and these results taken together revealed a correlation with poor overall survival of HCC patients, indicating the importance of these two events in HCC development. We found that increased autophagic activity leads to cyclin D1 ubiquitination and selective recruitment to the autophagosome (AP) mediated by a specific receptor, sequestosome 1 (SQSTM1), followed by fusion with lysosome and degradation. Autophagy-selective degradation of ubiquitinated cyclin D1 through SQSTM1 was confirmed using cyclin D1/ubiquitin binding site (K33-238 R) and phosphorylation site (T286A) mutants, lentivirus-mediated silencing autophagy-related 5 (ATG5), autophagy-related 7 (ATG7), and Sqstm1 knockout cells. Functional studies revealed that autophagy-selective degradation of cyclin D1 plays suppressive roles in cell proliferation, colony, and liver tumor formation. Notably, an increase of autophagic activity by pharmacological inducers (amiodarone and rapamycin) significantly suppressed tumor growth in both the orthotopic liver tumor and subcutaneous tumor xenograft models. Our findings provide evidence of the underlying mechanism involved in the regulation of cyclin D1 by selective autophagy to prevent tumor formation. CONCLUSION: Taken together, our data demonstrate that autophagic degradation machinery and the cell-cycle regulator, cyclin D1, are linked to HCC tumorigenesis. We believe these findings may be of value in the development of alternative therapeutics for HCC patients. (Hepatology 2018;68:141-154). PMID- 29328503 TI - Challenges and Opportunities With Oncology Drug Development in China. AB - Cancer is a growing public health problem in China. Despite the high unmet medical need of patients with cancer in China, oncology drug approvals have historically lagged behind those in the West, mainly the United States and Europe. China is currently undertaking regulatory reforms at a fast pace in order to mitigate this lag. PMID- 29328504 TI - Myotonic dystrophy patient preferences in patient-reported outcome measures. AB - INTRODUCTION: When preparing for clinical trials in myotonic dystrophy type-1 (DM1), it is important that researchers develop and identify patient-reported outcome measures with good measurement properties. METHODS: Fifty-two DM1 patients enrolled in 2 clinical studies completed the Myotonic Dystrophy Health Index (MDHI), 36-Item Short Form Health Survey (version 2; SF-36v2), Individualized Neuromuscular Quality of Life questionnaire (INQoL), and a questionnaire comparing the relevance, usability, overall preference, and perceived responsiveness of each measure. The associations between instrument scores and physical function, genetic test results, and employment status were examined. RESULTS: The MDHI was preferred over the INQoL in 13 of 13 areas and was preferred over the SF-36v2 in 9 of 13 areas. The MDHI was the only score that was associated with participant employment status, CTG repeat length, and the 3 measurements of clinical function. DISCUSSION: The MDHI correlates well with physical function and is viewed favorably by participants in DM1 clinical studies. Muscle Nerve, 2018. PMID- 29328506 TI - Underuse of Vitamin K Antagonist and Direct Oral Anticoagulants for Stroke Prevention in Patients With Atrial Fibrillation: A Contemporary Review. AB - Atrial fibrillation (AF) is a leading cause of stroke. Oral anticoagulant (OAC) therapy can significantly reduce the risk of stroke in patients with AF, but underuse of OACs for stroke prevention continues to be a serious clinical problem, with significant deleterious impact on outcomes. We review the studies demonstrating OAC underutilization and evaluating strategies for promoting the increased use of OAC therapy for stroke prevention in nonvalvular AF (NVAF) patients, including in special patient populations. PMID- 29328505 TI - Substance P as a putative efferent transmitter mediates GABAergic inhibition in mouse taste buds. AB - BACKGROUND AND PURPOSE: Capsaicin-mediated modulation of taste nerve responses is thought to be produced indirectly by the actions of neuropeptides, for example, CGRP and substance P (SP), on taste cells implying they play a role in taste sensitivity. During the processing of gustatory information in taste buds, CGRP shapes peripheral taste signals via serotonergic signalling. The underlying assumption has been that SP exerts its effects on taste transmitter secretion in taste buds of mice. EXPERIMENTAL APPROACH: To test this assumption, we investigated the net effect of SP on taste-evoked ATP secretion from mouse taste buds, using functional calcium imaging with CHO cells expressing high-affinity transmitter receptors as cellular biosensors. KEY RESULTS: Our results showed that SP elicited PLC activation-dependent intracellular Ca2+ transients in taste cells via neurokinin 1 receptors, most likely on glutamate-aspartate transporter expressing Type I cells. Furthermore, SP caused Type I cells to secrete GABA. CONCLUSION AND IMPLICATIONS: Combined with the recent findings that GABA depresses taste-evoked ATP secretion, the current results indicate that SP elicited secretion of GABA, which provided negative feedback onto Type II (receptor) cells to reduce taste-evoked ATP secretion. These findings are consistent with a role for SP as an inhibitory transmitter that shapes the peripheral taste signals, via GABAergic signalling, during the processing of gustatory information in taste buds. Notably, the results suggest that SP is intimately associated with GABA in mammalian taste signal processing and demonstrate an unanticipated route for sensory information flow within the taste bud. PMID- 29328508 TI - Serologic responses and effectiveness of hepatitis A vaccination among human immunodeficiency virus-positive individuals during the outbreak of acute hepatitis A. AB - : Outbreaks of hepatitis A virus (HAV) infection have been occurring among men who have sex with men in the Asia-Pacific region, the United States, and several European countries since June 2015 and recently among persons who are homeless and use illicit drugs in the United States. We evaluated the serologic responses and effectiveness of HAV vaccination in human immunodeficiency virus (HIV) positive individuals during the outbreak in Taiwan. From June 1, 2015, to September 30, 2016, anti-HAV immunoglobulin G was prospectively determined among all HIV-positive individuals. We prospectively observed 1,533 HAV-seronegative, HIV-positive individuals (94.1% being men who have sex with men with a median cluster of differentiation 4 (CD4) count of 550 cells/MUL) who were advised to receive two doses of HAV vaccine administered 6 months apart. Of them, 1,001 individuals (65.3%) received at least one dose of HAV vaccine during the study period and 532 (34.7%) declined to receive vaccine. The primary endpoints were serologic response at weeks 28-36 and acquisition of HAV infection during follow up. The incidence rate of acute HAV infection was 3.7 and 99.3 per 1,000 person years of follow-up in the vaccinated and unvaccinated groups, respectively, resulting in a vaccine effectiveness of 96.3%. At weeks 28-36, the seroconversion rates were 63.8% and 93.7% in the intention-to-treat and per-protocol analyses, respectively. The factors associated with seroconversion at weeks 28-36 were younger age (per 1-year decrease, adjusted odds ratio, 1.08; 95% confidence interval, 1.02-1.12) and undetectable plasma HIV RNA load (adjusted odds ratio, 3.19; 95% confidence interval, 1.32-7.68). CONCLUSION: During the outbreak of acute hepatitis A, two-dose HAV vaccination is effective at preventing HAV infection among HIV-positive individuals receiving combination antiretroviral therapy; our data highlight the importance of HAV serologic screening and vaccination to prevent outbreaks of acute hepatitis A in at-risk populations. (Hepatology 2018;68:22-31). PMID- 29328507 TI - Genetics of immune-mediated inflammatory diseases. AB - Immune-mediated inflammatory diseases (IMIDs) are characterized by dysregulation of the normal immune response, which leads to inflammation. Together, they account for a high disease burden in the population, given that they are usually chronic conditions with associated co-morbidities. Examples include systemic lupus erythematosus, rheumatoid arthritis, Crohn's disease and type 1 diabetes. Since the advent of genome-wide association studies, evidence of considerable genetic overlap in the loci predisposing to a wide range of IMIDs has emerged. Understanding the genetic risk and extent of genetic overlap between IMIDs may help to determine which genes control which aspects of the different diseases; it may identify potential novel therapeutic targets for a number of these conditions, and/or it may facilitate repurposing existing therapies developed originally for different conditions. The findings show that autoantibody-mediated autoimmune diseases cluster more closely with each other than autoantibody negative diseases such as psoriasis, psoriatic arthritis, Crohn's disease and ankylosing spondylitis which, instead, form a seronegative genetic cluster. The genetic clustering largely mirrors the known response to existing biological therapies, but apparent anomalies in treatment response are discussed. PMID- 29328509 TI - High refuge availability on coral reefs increases the vulnerability of reef associated predators to overexploitation. AB - Refuge availability and fishing alter predator-prey interactions on coral reefs, but our understanding of how they interact to drive food web dynamics, community structure and vulnerability of different trophic groups is unclear. Here, we apply a size-based ecosystem model of coral reefs, parameterized with empirical measures of structural complexity, to predict fish biomass, productivity and community structure in reef ecosystems under a broad range of refuge availability and fishing regimes. In unfished ecosystems, the expected positive correlation between reef structural complexity and biomass emerges, but a non-linear effect of predation refuges is observed for the productivity of predatory fish. Reefs with intermediate complexity have the highest predator productivity, but when refuge availability is high and prey are less available, predator growth rates decrease, with significant implications for fisheries. Specifically, as fishing intensity increases, predators in habitats with high refuge availability exhibit vulnerability to over-exploitation, resulting in communities dominated by herbivores. Our study reveals mechanisms for threshold dynamics in predators living in complex habitats and elucidates how predators can be food-limited when most of their prey are able to hide. We also highlight the importance of nutrient recycling via the detrital pathway, to support high predator biomasses on coral reefs. PMID- 29328510 TI - A multidimensional assessment of the burden of psoriasis: results from a multinational dermatologist and patient survey. AB - BACKGROUND: Psoriasis is a chronic, immune-mediated disease, characterized by symptoms that include itching and skin pain and is often associated with comorbidities. Patients have a substantial detriment to quality of life (QoL) and work productivity with associated cost burden. OBJECTIVES: To investigate the incremental burden of comorbidities, itch and affected body areas among systemic eligible patients with psoriasis, using a multinational survey of dermatologists and their patients with psoriasis. METHODS: Multinational data from the Growth from Knowledge (GfK) Disease Atlas Global Real-World Evidence program were used. Eligible patients were identified as those who were currently having or had ever had moderate-to-severe psoriasis, and must have been receiving prescription treatments at the time of the survey. Multivariable regression analyses were conducted to assess the incremental burden among psoriasis patients with physical and psychological comorbidities, itch and affected visible and sensitive body areas vs. psoriasis patients without these conditions, respectively. RESULTS: The study enrolled 3821 patients with psoriasis, from nine countries, with an average Psoriasis Area and Severity Index score of 6.4. The presence of comorbidities was associated with a significant increase in the likelihood of skin pain, lower QoL, greater work impairment and increased usage of medical resources (except in psoriasis patients with obesity and type 2 diabetes). Psoriasis patients suffering from itch and those with visible and sensitive affected body areas also had impaired QoL vs. those without these conditions. CONCLUSIONS: Psoriasis patients with physical and psychological comorbidities, itch and affected visible and sensitive body areas had lower QoL and greater work impairment compared to those without these conditions. PMID- 29328512 TI - Economy of scale: third partner strengthens a keystone ant-plant mutualism. AB - While foundation species can stabilize ecosystems at landscape scales, their ability to persist is often underlain by keystone interactions occurring at smaller scales. Acacia drepanolobium is a foundation tree, comprising >95% of woody cover in East African black-cotton savanna ecosystems. Its dominance is underlain by a keystone mutualistic interaction with several symbiotic ant species in which it provides housing (swollen thorns) and carbohydrate-rich nectar from extra-floral nectaries (EFN). In return, it gains protection from catastrophic damage from mega-herbivores. Crematogaster mimosae is the ecologically dominant symbiotic ant in this system, also providing the highest protection services. In addition to tending EFN, C. mimosae tend scale insects for carbohydrate-rich honeydew. We investigated the role of scale insects in this specialized ant-plant interaction. Specifically, does this putatively redundant third partner strengthen the ant-plant mutualism by making the ant a better protector of the tree? Or does it weaken the mutualism by being costly to the tree while providing no additional benefit to the ant-plant mutualism? We coupled observational surveys with two scale-manipulation experiments and found evidence that this third partner strengthens the ant-plant mutualism. Trees with scale insects experimentally removed experienced a 2.5X increase in elephant damage compared to trees with scale insects present over 10 months. Reduced protection was driven by scale removal causing a decrease in ant colony size and per capita baseline activity and defensive behavior. We also found that ants increased scale tending and the density of scale insects on trees when EFN were experimentally reduced. Thus, in this system, scale insects and EFN are likely complementary, rather than redundant, resources with scale insects benefitting ants when EFN production is low (such as during annual dry periods in this semi-arid ecosystem). This study reveals that a third-partner strengthens an ant-plant mutualism that serves to stabilize a whole ecosystem. PMID- 29328513 TI - Wide QRS complex tachycardia followed by 2:1 atrioventricular block: What is the mechanism? PMID- 29328511 TI - Stigma and unmet sexual and reproductive health needs among international migrant sex workers at the Mexico-Guatemala border. AB - OBJECTIVE: To explore international migrant sex workers' experiences and narratives pertaining to the unmet need for and access to sexual and reproductive health (SRH) at the Mexico-Guatemala border. METHODS: An inductive qualitative analysis was conducted based on ethnographic fieldwork (2012-2015) including participant observation and audio-recorded in-depth interviews. The participants were female sex workers aged 18 years or older and international migrants working at the Mexico-Guatemala border. RESULTS: In total, 31 women were included. The greatest areas of unmet need included accessible, affordable, and nonstigmatizing access to contraception and treatment of sexually transmitted infections. On both sides of the border, poor information about the health systems, services affordability, and perceived stigma resulted in barriers to access SRH services, with women preferring to access private doctors in their destination country or delaying uptake of until their next trip home. Financial barriers prevented women from accessing needed services, with most only receiving SRH services in their destination country through public health regulations surrounding sex work or as urgent care. CONCLUSIONS: There is a crucial need to avoid prioritizing vertical disease-specific services and to promote access to rights-based SRH services for migrant sex workers in both home and destination settings. PMID- 29328514 TI - A systematic review of population pharmacokinetics of valproic acid. AB - AIMS: Population pharmacokinetics is an essential tool that helps guide individualized dosing regimens. The aims of this systematic review are to provide knowledge concerning population pharmacokinetics of valproic acid (VPA) and to identify factors influencing VPA pharmacokinetic variability. METHODS: PubMed and Embase databases were systematically searched from inception to June, 2017. Relevant articles from reference lists were also included. All population pharmacokinetic studies of VPA conducted in humans and that employed a nonlinear mixed effect modelling approach were included in this review. RESULTS: Twenty-six studies were included in this review. Most studies characterized VPA pharmacokinetics as a one-compartment model. Three studies reported a two compartment model. Body weight, dose and age were significant predictors for VPA volume of distribution (Vd ). The estimated Vd for one-compartment models ranged from 8.4 to 23.3 l. For two-compartment models, peripheral volumes of distribution ranged from 4.08 to 42.1 l. Frequently reported significant predictors for VPA clearance (CLVPA ) included body weight, VPA dose, concomitant medications, gender and age. The estimated CLVPA ranged from 0.206 to 1.154 l h-1 and the inter-individual variability ranged from 13.40 to 35.90%. Two studies reported population pharmacokinetics/pharmacodynamics of VPA in patients with epilepsy. Seventeen studies evaluated the performance of their final models. CONCLUSIONS: Significant predictors influencing VPA pharmacokinetics as well as model methodologies are highlighted in this review. For clinical application, CLVPA could be predicted using body weight, VPA dose, concomitant medications, gender or age. For future research, there is a knowledge gap regarding population pharmacokinetics/pharmacodynamics of VPA in a population other than epileptic patients. PMID- 29328515 TI - Magnetic resonance imaging in facioscapulohumeral muscular dystrophy. PMID- 29328516 TI - Ultrasonographic demonstration of intraneural neovascularization after penetrating nerve injury. AB - INTRODUCTION: Hypervascularization of nerves has been shown to be a pathological sign in some peripheral nerve disorders, but has not been investigated in nerve trauma. METHODS: An observational cohort study was performed of the intraneural blood flow of 30 patients (34 nerves) with penetrating nerve injuries, before or after nerve reconstruction. All patients underwent electrophysiological assessment, and B-mode and color Doppler ultrasonography. RESULTS: Intraneural hypervascularization proximal to the site of injury was found in all nerves, which was typically marked and had a longitudinal extension of several centimeters. In 6 nerves, some blood flow was also present within the injury site or immediately distal to the injury. No correlation was found between the degree of vascularization and age, size of the scar / neuroma, or degree of reinnervation. DISCUSSION: Neovascularization of nerves proximal to injury sites appears to be an essential element of nerve regeneration after penetrating nerve injuries. Muscle Nerve 57: 994-999, 2018. PMID- 29328517 TI - Creeping eruption and eosinophilic folliculitis: Atypical cutaneous larva migrans. PMID- 29328518 TI - Stevens-Johnson syndrome/toxic epidermal necrolysis overlap in a NSCLC patient treated with afatinib. PMID- 29328519 TI - Surface modification using the biomimetic method in alumina-zirconia porous ceramics obtained by the replica method. AB - The modification of biomaterials approved by the Food and Drug Administration could be an alternative to reduce the period of use in humans. Porous bioceramics are widely used as support structures for bone formation and repair. This composite has essential characteristics for an implant, including good mechanical properties, high chemical stability, biocompatibility and adequate aesthetic appearance. Here, three-dimensional porous scaffolds of Al2 O3 containing 5% by volume of ZrO2 were produced by the replica method. These scaffolds had their surfaces chemically treated with phosphoric acid and were coated with calcium phosphate using the biomimetic method simulated body fluid (SBF, 5*) for 14 days. The scaffolds, before and after biomimetic coating, were characterized mechanically, morphologically and structurally by axial compression tests, scanning electron microscopy, microtomography, apparent porosity, X-ray diffractometry, near-infrared spectroscopy, inductively coupled plasma optical emission spectroscopy, energy dispersive X-ray spectroscopy and reactivity. The in vitro cell viability and formation of mineralization nodules were used to identify the potential for bone regeneration. The produced scaffols after immersion in SBF were able to induce the nodules formation. These characteristics are advantaged by the formation of different phases of calcium phosphates on the material surface in a reduced incubation period. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2615-2624, 2018. PMID- 29328522 TI - Cassava flour slurry as a low-cost alternative to commercially available gel for obstetrical ultrasound: a blinded non-inferiority trial comparison of image quality. AB - OBJECTIVE: To evaluate the quality of ultrasound images obtained with cassava flour slurry (CFS) compared with conventional gel in order to determine objectively whether CFS could be a true low-cost alternative. DESIGN: Blinded non inferiority trial. SETTING: Obstetrical ultrasound unit in an academic medical centre. POPULATION OR SAMPLE: Women with a singleton pregnancy, undergoing anatomy ultrasounds. METHODS: Thirty pregnant women had standard biometry measures obtained with CFS and conventional gel. Images were compared side-by side in random order by two blinded sonologists and rated for image resolution, detail and total image quality using a 10-cm visual analogue scale. Ratings were compared using paired t-tests. Participant and sonographer experience was measured using five-point Likert scales. MAIN OUTCOME MEASURES: Image resolution, detail, and total image quality. Participant experience of gel regarding irritation, messiness, and ease of removal. RESULTS: We found no significant difference between perceived image quality obtained with CFS (mean = 6.2, SD = 1.2) and commercial gel (mean = 6.4, SD = 1.2) [t (28) = -1.1; P = 0.3]. Images were not rated significantly differently for either reviewer in any measure, any standardized image or any view of a specific anatomic structure. All five sonographers rated CFS as easy to obtain clear images and easy for patient and machine cleanup. Only one participant reported itching with CFS. CONCLUSIONS: CFS produces comparable image quality to commercial ultrasound gel. The dissemination of these results and the simple CFS recipe could significantly increase access to ultrasound for screening, monitoring and diagnostic purposes in resource-limited settings. FUNDING: This study was internally funded by our department. TWEETABLE ABSTRACT: Low-cost homemade cassava flour slurry creates images equal to commercial ultrasound gel, improving access. PMID- 29328520 TI - Dysfunctional sarcomere contractility contributes to muscle weakness in ACTA1 related nemaline myopathy (NEM3). AB - OBJECTIVE: Nemaline myopathy (NM) is one of the most common congenital nondystrophic myopathies and is characterized by muscle weakness, often from birth. Mutations in ACTA1 are a frequent cause of NM (ie, NEM3). ACTA1 encodes alpha-actin 1, the main constituent of the sarcomeric thin filament. The mechanisms by which mutations in ACTA1 contribute to muscle weakness in NEM3 are incompletely understood. We hypothesized that sarcomeric dysfunction contributes to muscle weakness in NEM3 patients. METHODS: To test this hypothesis, we performed contractility measurements in individual muscle fibers and myofibrils obtained from muscle biopsies of 14 NEM3 patients with different ACTA1 mutations. To identify the structural basis for impaired contractility, low angle X-ray diffraction and stimulated emission-depletion microscopy were applied. RESULTS: Our findings reveal that muscle fibers of NEM3 patients display a reduced maximal force-generating capacity, which is caused by dysfunctional sarcomere contractility in the majority of patients, as revealed by contractility measurements in myofibrils. Low angle X-ray diffraction and stimulated emission depletion microscopy indicate that dysfunctional sarcomere contractility in NEM3 patients involves a lower number of myosin heads binding to actin during muscle activation. This lower number is not the result of reduced thin filament length. Interestingly, the calcium sensitivity of force is unaffected in some patients, but decreased in others. INTERPRETATION: Dysfunctional sarcomere contractility is an important contributor to muscle weakness in the majority of NEM3 patients. This information is crucial for patient stratification in future clinical trials. Ann Neurol 2018;83:269-282. PMID- 29328523 TI - Improved portal vein venoplasty with an autogenous patch in pediatric living donor liver transplantation. AB - A stenotic or hypoplastic portal vein (PV) represents a challenge for PV reconstruction in pediatric living donor liver transplantation (LDLT). Several PV venoplastic techniques have been developed. However, we still seek improved venoplastic techniques with better efficacy and compatibility. From June 2016 to July 2017, 271 LDLT procedures were performed at the Department of Liver Surgery, Renji Hospital. A total of 16 consecutive children with stenotic and sclerotic PVs underwent a novel technique-the autogenous PV patch plastic technique. Vessel patches were procured from the left branch (LB), or the bifurcation of the right branch and LB of the PV in the native liver. Then, the PVs were enlarged by suturing the patches along the longitudinal axis from the confluence of the PV and coronary vein (CV). In this series, 15/16 achieved good intraoperational PV flow, and 1 showed low PV flow but was treated with stent placement. Within a median follow-up of 11 months (1-18 months), 15 patients were alive and had normal graft function, whereas 1 child died from lung infection 1 month after transplantation. No PV complications were detected. In conclusion, the autogenous patch venoplasty technique using the PV-CV confluence is simple and safe. This novel venoplastic reconstruction technique could serve as a surgical option to achieve satisfactory outcomes, especially those with stenotic PV (<4.5 mm) and dilated CV (>3.0 mm). Liver Transplantation 2018 AASLD. PMID- 29328524 TI - Self-Healing Inside APbBr3 Halide Perovskite Crystals. AB - Self-healing, where a modification in some parameter is reversed with time without any external intervention, is one of the particularly interesting properties of halide perovskites. While there are a number of studies showing such self-healing in perovskites, they all are carried out on thin films, where the interface between the perovskite and another phase (including the ambient) is often a dominating and interfering factor in the process. Here, self-healing in perovskite (methylammonium, formamidinium, and cesium lead bromide (MAPbBr3 , FAPbBr3 , and CsPbBr3 )) single crystals is reported, using two-photon microscopy to create damage (photobleaching) ~110 um inside the crystals and to monitor the recovery of photoluminescence after the damage. Self-healing occurs in all three perovskites with FAPbBr3 the fastest (~1 h) and CsPbBr3 the slowest (tens of hours) to recover. This behavior, different from surface-dominated stability trends, is typical of the bulk and is strongly dependent on the localization of degradation products not far from the site of the damage. The mechanism of self healing is discussed with the possible participation of polybromide species. It provides a closed chemical cycle and does not necessarily involve defect or ion migration phenomena that are often proposed to explain reversible phenomena in halide perovskites. PMID- 29328521 TI - Central vein sign differentiates Multiple Sclerosis from central nervous system inflammatory vasculopathies. AB - OBJECTIVES: In multiple sclerosis (MS), magnetic resonance imaging (MRI) is a sensitive tool for detecting white matter lesions, but its diagnostic specificity is still suboptimal; ambiguous cases are frequent in clinical practice. Detection of perivenular lesions in the brain (the "central vein sign") improves the pathological specificity of MS diagnosis, but comprehensive evaluation of this MRI biomarker in MS-mimicking inflammatory and/or autoimmune diseases, such as central nervous system (CNS) inflammatory vasculopathies, is lacking. In a multicenter study, we assessed the frequency of perivenular lesions in MS versus systemic autoimmune diseases with CNS involvement and primary angiitis of the CNS (PACNS). METHODS: In 31 patients with inflammatory CNS vasculopathies and 52 with relapsing-remitting MS, 3-dimensional T2*-weighted and T2-fluid-attenuated inversion recovery images were obtained during a single MRI acquisition after gadolinium injection. For each lesion, the central vein sign was evaluated according to consensus guidelines. For each patient, lesion count, volume, and brain location, as well as fulfillment of dissemination in space MRI criteria, were assessed. RESULTS: MS showed higher frequency of perivenular lesions (median = 88%) than did inflammatory CNS vasculopathies (14%), without overlap between groups or differences between 3T and 1.5T MRI. Among inflammatory vasculopathies, Behcet disease showed the highest median frequency of perivenular lesions (34%), followed by PACNS (14%), antiphospholipid syndromes (12%), Sjogren syndrome (11%), and systemic lupus erythematosus (0%). When a threshold of 50% perivenular lesions was applied, central vein sign discriminated MS from inflammatory vasculopathies with a diagnostic accuracy of 100%. INTERPRETATION: The central vein sign differentiates inflammatory CNS vasculopathies from MS at standard clinical magnetic field strengths. Ann Neurol 2018;83:283-294. PMID- 29328526 TI - Brain atrophy in multiple sclerosis: How deep must we go? PMID- 29328525 TI - Role of sialic acid-containing glycans of matrix metalloproteinase-9 (MMP-9) in the interaction between MMP-9 and staphylococcal superantigen-like protein 5. AB - Staphylococcal superantigen-like proteins (SSL) show no superantigenic activity but have recently been considered to act as immune suppressors. It was previously reported that SSL5 bound to P-selectin glycoprotein ligand-1 (PSGL-1) and matrix metalloproteinase (MMP)-9, leading to inhibition of leukocyte adhesion and invasion. These interactions were suggested to depend on sialic acid-containing glycans of MMP-9, but the roles of sialic acids in the interaction between SSL5 and MMP-9 are still controversial. In the present study, we prepared recombinant glutathione S-transferase-tagged SSL5 (GST-SSL5) and analyzed its binding capacity to MMP-9 by pull-down assay after various modifications of its carbohydrate moieties. We observed that GST-SSL5 specifically bound to MMP-9 from a human monocytic leukemia cell line (THP-1 cells) and inhibited its enzymatic activity in a concentration-dependent manner. After MMP-9 was treated with neuraminidase, its binding activity towards GST-SSL5 was markedly decreased. Furthermore, recombinant MMP-9 produced by sialic acid-deficient Lec2 mutant cells showed much lower affinity for SSL5 than that produced by wild-type CHO-K1 cells. Treatment of MMP-9 with PNGase F to remove N-glycan resulted in no significant change in the GST-SSL5/MMP-9 interaction. In contrast, the binding of GST-SSL5 to MMP-9 secreted from THP-1 cells cultured in the presence of an inhibitor for the biosynthesis of O-glycan (benzyl-GalNAc) was weaker than the binding of GST-SSL5 to MMP-9 secreted from untreated cells. These results strongly suggest the importance of the sialic acid-containing O-glycans of MMP-9 for the interaction of MMP-9 with GST-SSL5. PMID- 29328527 TI - Pruritic papulovesicular dermatosis with reticular hyperpigmentation. PMID- 29328528 TI - Evaluation of the use of recombinant human basic fibroblast growth factor in combination with negative pressure wound therapy with instillation and dwell time in porcine full-thickness wound model. AB - NPWT with instillation and dwell time (NPWTi-d), which combines NPWT with wound irrigation, has been clinically applied as a more effective treatment than conventional NPWT. Commercially available recombinant human basic fibroblast growth factor (rh-bFGF) has been demonstrated to be beneficial for use over the wound beds. The objective of this study was to evaluate the effectiveness of combined treatment with NPWTi-d and rh-bFGF. Six pigs received 12 full-thickness excisional skin wounds and were treated with six different treatment groups for each pair. The treatment regimens were composed NPWTi-d, NPWT, or advanced wound care with or without rh-bFGF. On day 6, the minimum granulation tissue thickness and blood vessel number of the group of combined treatment with NPWTi-d and rh bFGF spray were significantly greater than that of the control group. Combined treatment with NPWTi-d and rh-bFGF spray reads to good granulation tissue formation and vascularization for accelerating wound healing. PMID- 29328530 TI - Fusing a Planar Group to a pi-Bowl: Electronic and Molecular Structure, Aromaticity and Solid-State Packing of Naphthocorannulene and its Anions. AB - Molecular and electronic structure, reduction electron transfer and coordination abilities of a polycyclic aromatic hydrocarbon (PAH) having a planar naphtho group fused to the corannulene bowl have been investigated for the first time using a combination of theoretical and experimental tools. A direct comparison of naphtho[2,3-a]corannulene (C28 H14 , 1) with parent corannulene (C20 H10 , 2) revealed the effect of framework topology change on electronic properties and aromaticity of 1. The presence of two reduction steps for 1 was predicted theoretically and confirmed experimentally. Two reversible one-electron reduction processes with the formal reduction potentials at -2.30 and -2.77 V versus Fc+/0 were detected by cyclic voltammetry (CV) measurements, demonstrating accessibility of the corresponding mono- and dianionic states of 1. The products of the singly and doubly reduced napththocorannulene were prepared using chemical reduction with Group 1 metals and isolated as sodium and rubidium salts. Their X ray diffraction study revealed the formation of "naked" mono- and dianions crystallized as solvent-separated ion products with one or two sodium cations as [Na+ (18-crown-6)(THF)2 ][C28 H14- ] and [Na+ (18-crown-6)(THF)2 ]2 [C28 H142- ] (3?THF and 4?THF, respectively). The dianion of 1 was also isolated as a contact ion complex with two rubidium countercations, [{Rb+ (18-crown-6)}2 (C28 H142- )] (5?THF). The structural consequences of adding one and two electrons to the carbon framework of 1 are compared for 3, 4 and 5. Changes in aromaticity and charge distribution stemming from the stepwise electron acquisition are discussed based on DFT computational study. PMID- 29328529 TI - Hinokitiol ablates myofibroblast activation in precancerous oral submucous fibrosis by targeting Snail. AB - Oral submucous fibrosis (OSF) is a precancerous condition with symptoms of limited mouth opening and areca nut chewing habit has been implicated in its pathogenesis. Hinokitiol, a natural tropolone derived from Chamacyparis taiwanensis, has been reported to improve oral lichen planus and inhibit various cancer cells. Here, we showed that hinokitiol reduced the myofibroblast activities in fBMFs and prevented the arecoline-induced transdifferentiation. Treatment of hinokitiol dose-dependently downregulated the myofibroblast markers as well as various EMT transcriptional factors. In particular, we identified that Snail was able to bind to the E-box in the alpha-SMA promoter. Our data suggested that exposure of fBMFs to hinokitiol mitigated the hallmarks of myofibroblasts, while overexpression of Snail eliminated the effect of hinokitiol. These findings revealed that the inhibitory effect of hinokitiol on myofibroblasts was mediated by repression of alpha-SMA via regulation of Snail and showed the anti-fibrotic potential of hinokitiol in the treatment of OSF. PMID- 29328531 TI - Thalamic atrophy in multiple sclerosis: A magnetic resonance imaging marker of neurodegeneration throughout disease. AB - OBJECTIVE: Thalamic volume is a candidate magnetic resonance imaging (MRI)-based marker associated with neurodegeneration to hasten development of neuroprotective treatments. Our objective is to describe the longitudinal evolution of thalamic atrophy in MS and normal aging, and to estimate sample sizes for study design. METHODS: Six hundred one subjects (2,632 MRI scans) were analyzed. Five hundred twenty subjects with relapse-onset MS (clinically isolated syndrome, n = 90; relapsing-remitting MS, n = 392; secondary progressive MS, n = 38) underwent annual standardized 3T MRI scans for an average of 4.1 years, including a 1mm3 3 dimensional T1-weighted sequence (3DT1; 2,485 MRI scans). Eighty-one healthy controls (HC) were scanned longitudinally on the same scanner using the same protocol (147 MRI scans). 3DT1s were processed using FreeSurfer's longitudinal pipeline after lesion inpainting. Rates of normalized thalamic volume loss in MS and HC were compared in linear mixed effects models. Simulation-based sample size calculations were performed incorporating the rate of atrophy in HC. RESULTS: Thalamic volume declined significantly faster in MS subjects compared to HC, with an estimated decline of -0.71% per year (95% confidence interval [CI] = -0.77% to -0.64%) in MS subjects and -0.28% per year (95% CI = -0.58% to 0.02%) in HC (p for difference = 0.007). The rate of decline was consistent throughout the MS disease duration and across MS clinical subtypes. Eighty or 100 subjects per arm (alpha = 0.1 or 0.05, respectively) would be needed to detect the maximal effect size with 80% power in a 24-month study. INTERPRETATION: Thalamic atrophy occurs early and consistently throughout MS. Preliminary sample size calculations appear feasible, adding to its appeal as an MRI marker associated with neurodegeneration. Ann Neurol 2018;83:223-234. PMID- 29328532 TI - Population genomic footprints of host adaptation, introgression and recombination in coffee leaf rust. AB - Coffee leaf rust, caused by Hemileia vastatrix (Hv), represents the biggest threat to coffee production worldwide and ranks amongst the most serious fungal diseases in history. Despite a recent series of outbreaks and emergence of hypervirulent strains, the population evolutionary history and potential of this pathogen remain poorly understood. To address this issue, we used restriction site-associated DNA sequencing (RADseq) to generate ~19 000 single nucleotide polymorphisms (SNPs) across a worldwide collection of 37 Hv samples. Contrary to the long-standing idea that Hv represents a genetically unstructured and cosmopolitan species, our results reveal the existence of a cryptic species complex with marked host tropism. Using phylogenetic and pathological data, we show that one of these lineages (C3) infects almost exclusively the most economically valuable coffee species (tetraploids that include Coffea arabica and interspecific hybrids), whereas the other lineages (C1 and C2) are severely maladapted to these hosts, but successfully infect diploid coffee species. Population dynamic analyses suggest that the C3 group may be a recent 'domesticated' lineage that emerged via host shift from diploid coffee hosts. We also found evidence of recombination occurring within this group, which could explain the high pace of pathotype emergence despite the low genetic variation. Moreover, genomic footprints of introgression between the C3 and C2 groups were discovered and raise the possibility that virulence factors may be quickly exchanged between groups with different pathogenic abilities. This work advances our understanding of the evolutionary strategies used by plant pathogens in agro ecosystems with direct and far-reaching implications for disease control. PMID- 29328534 TI - Split-thickness skin grafting for reconstruction of auricular skin defects: a statistical analysis. AB - BACKGROUND AND OBJECTIVES: Surgical reconstruction following the removal of large malignant auricular lesions is challenging. While many options for defect closure have been described, in the elderly population usually affected flap surgery, long anesthesia times, patient compliance, and anticoagulant therapy pose additional risks. An alternative quick, simple, and effective method of defect closure is therefore highly desirable. The objective of the present study was to assess the aesthetic outcome, healing process, complications, and recurrence rates associated with unmeshed split-thickness skin grafts (STSGs) used for covering large auricular skin defects following cartilage-sparing skin cancer removal. PATIENTS AND METHODS: Under local tumescent anesthesia, 32 patients received STSGs for defect closure following the removal of malignant cutaneous neoplasms of the ear. RESULTS: The average defect size was 8.0 cm2. In all cases, complete healing of the recipient site occurred within two weeks. There were no major complications. The aesthetic outcome was rated highly by patients as well as by the dermatosurgeon involved and two independent plastic surgeons. CONCLUSIONS: STSGs are a valid option for closing large auricular skin defects. Even large cutaneous tumors of the external ear do not necessarily infiltrate the cartilage. Thus, cartilage-sparing tumor resection with subsequent defect closure using a STSG is an excellent and quick method associated with high patient satisfaction. PMID- 29328533 TI - Cobaltocenylidene: A Mesoionic Metalloceno Carbene, Stabilized in a Gold(III) Complex. AB - Oxidative addition of cobaltoceniumdiazonium bis(hexafluoridophosphate) with (pseudo)halide aurates gave gold(III) complexes containing zwitterionic cobaltoceniumide as a ligand. Its selenium derivative, cobaltoceniumselenolate, was obtained by an electrophilic aromatic substitution reaction of iodocobaltocenium iodide with Na2 Se. Spectroscopic and structural data in combination with DFT calculations showed that this cobaltocenylidene species is a mesoionic carbene quite different from common N-heterocyclic carbenes. Its ligand properties (TEP, singlet-triplet gap, nucleophilicity, pi-acidity, Bronsted basicity) are in part comparable to those of cyclic (amino)(alkyl/aryl)carbenes. Electrochemistry data showed that the mesoionic cobaltoceniumides are more electron-rich than their parent ferrocenes. The reversible reduction of the tricyanido gold complex appears 50 mV negative of the cobaltocenium/cobaltocene couple, whereas that of the selenide derivative is shifted cathodically by 550 mV. PMID- 29328535 TI - An Exceptionally Close, Non-Bonded Hydrogen-Hydrogen Contact with Strong Through Space Spin-Spin Coupling. AB - Condensation of 1,8,13-tris(mercaptomethyl)triptycene and tris(bromomethyl)methane yields an in,in-cyclophane with two inwardly directed methine groups. Based on X-ray analysis and DFT and MP2 calculations, the hydrogen-hydrogen non-bonded contact distance is estimated to be 1.50-1.53 A. Furthermore, the two in-hydrogen atoms show obvious spin-spin coupling with J=2.0 Hz. PMID- 29328536 TI - Rituximab as monotherapy for the treatment of chronic active antibody-mediated rejection after kidney transplantation. PMID- 29328537 TI - Deracemization of a Racemic Compound by Using Tailor-Made Additives. AB - Viedma ripening is a process that combines abrasive grinding of a slurry of crystals with solution-phase racemization, resulting in solid-phase deracemization. One of the major disadvantages of Viedma ripening is that the desired compound needs to crystallize as a racemic conglomerate, accounting for only 5-10 % of all chiral molecules. Herein, we show that use of a chiral additive causes deracemization under conditions, in which the compound normally crystallizes as a racemic compound. Although this concerns a single example, it is envisioned that through this new approach the scope of Viedma ripening can be significantly expanded. PMID- 29328538 TI - Conflict between heterozygote advantage and hybrid incompatibility in haplodiploids (and sex chromosomes). AB - In many diploid species, the sex chromosomes play a special role in mediating reproductive isolation. In haplodiploids, where females are diploid and males haploid, the whole genome behaves similarly to the X/Z chromosomes of diploids. Therefore, haplodiploid systems can serve as a model for the role of sex chromosomes in speciation and hybridization. A previously described population of Finnish Formica wood ants displays genome-wide signs of ploidally and sexually antagonistic selection resulting from hybridization. Here, hybrid females have increased survivorship but hybrid males are inviable. To understand how the unusual hybrid population may be maintained, we developed a mathematical model with hybrid incompatibility, female heterozygote advantage, recombination and assortative mating. The rugged fitness landscape resulting from the co-occurrence of heterozygote advantage and hybrid incompatibility results in a sexual conflict in haplodiploids, which is caused by the ploidy difference. Thus, whereas heterozygote advantage always promotes long-term polymorphism in diploids, we find various outcomes in haplodiploids in which the population stabilizes either in favour of males, females or via maximizing the number of introgressed individuals. We discuss these outcomes with respect to the potential long-term fate of the Finnish wood ant population and provide approximations for the extension of the model to multiple incompatibilities. Moreover, we highlight the general implications of our results for speciation and hybridization in haplodiploids versus diploids and how the described fitness relationships could contribute to the outstanding role of sex chromosomes as hotspots of sexual antagonism and genes involved in speciation. PMID- 29328539 TI - Early detection of myocardial involvement by T1 mapping of cardiac MRI in idiopathic inflammatory myopathy. AB - BACKGROUND: Polymyositis (PM) and dermatomyositis (DM) are common types of idiopathic inflammatory myopathy (IIM), wherein patients are prone to adverse cardiovascular events. PURPOSE: To explore the value of cardiac magnetic resonance imaging (MRI) for detecting cardiac involvement in PM/DM patients using a T1 mapping technique. STUDY TYPE: Prospective observational study. POPULATION: In all, 25 PM/DM patients free of cardiovascular symptoms and preserved ventricular systolic function and 25 healthy volunteers matched for age and sex served as controls. FIELD STRENGTH/SEQUENCE: Cardiac MRI at 3T, including steady state free precession (SSFP) cine imaging, late gadolinium enhancement (LGE), and T1 mapping with modified Look-Locker inversion recovery (MOLLI). ASSESSMENT: Myocardial native T1 and extracellular volume (ECV) of the left ventricle as well as the correlations with disease activity were analyzed. STATISTICAL TESTS: Independent sample's t-test, Fisher's exact test, or chi-square test, Pearson's correlation (r) were applied. P <= 0.05 was considered significant. RESULTS: Left ventricular end-diastolic/end-systolic volume index (P = 0.643, P = 0.325, respectively), mass index (P = 0.719), and ejection fraction (P = 0.144) were not significantly different between PM/DM patients and controls. LGE was found in 19% of PM/DM patients and none of the control subjects. PM/DM patients showed significantly higher native T1 values (1263.7 +/- 84.0 msec vs. 1200.6 +/- 43.0 msec, P = 0.002) and expanded extracellular volume (ECV) (32.6 +/- 3.7% vs. 26.7 +/- 2.3%, P < 0.001) compared with control subjects. ECV values in PM/DM patients had a high proportion (60%) over the 95% percentile of normal controls. Meanwhile, there was a significant correlation between native T1 (r = 0.710, P = 0.0001) or ECV (r = 0.508, P = 0.01) and N-terminal prohormone of brain natriuretic peptide (NT-proBNP). DATA CONCLUSION: T1 mapping of cardiac MRI is valuable to detect subclinical myocardial involvement in PM/DM patients, and both myocardial native T1 and ECV could serve as early imaging markers for myocardial impairment in PM/DM. LEVEL OF EVIDENCE: 2 Technical Efficacy: Stage 3 J. MAGN. RESON. IMAGING 2018;48:415-422. PMID- 29328540 TI - Case of late-onset, relapsing surgical site infection related to a venous coupler placed during free flap reconstruction for major head and neck cancer. AB - BACKGROUND: Venous coupling devices are widely used during reconstructive surgery involving microvascular anastomosis but have not served as foreign bodies in head and neck surgical site infections. METHODS: We conducted a case report. RESULTS: A patient underwent resection and free flap reconstruction for recurrent tongue squamous cell carcinoma. She developed a neck abscess due to Streptococcus intermedius 7 weeks postoperatively, days after starting chemoradiotherapy. The surgical site infection healed with drainage and antibiotics. Two surgical site infection relapses due to S. intermedius occurred 3 and 8 weeks after completing radiation, the second relapse after a prolonged course of i.v. antibiotics. Surgical exploration revealed a venous coupler within granulation tissue. The device was removed and no further surgical site infection relapses occurred. CONCLUSION: To the best of our knowledge, this is the first report of a delayed onset head and neck surgical site infection in which a venous coupler served as a foreign body. An infected foreign body should be suspected in relapsing surgical site infections due to a single organism. PMID- 29328541 TI - GM-CSF ameliorates microvascular barrier integrity via pericyte-derived Ang-1 in wound healing. AB - Skin wound healing involves complex coordinated interactions of cells, tissues, and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, postinjury. Eventually, vessel integrity has to be reestablished for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines. However, whether GM-CSF is involving in the maintaining of microvascular barrier integrity and the underlying mechanism remain still unclear. Aim of this study was to investigate the effects of GM-CSF on modulation of microvascular permeability in wound healing and underlying mechanisms. Wound closure and microvascular leakage was investigated using a full-thickness skin wound mouse model after GM-CSF intervention. The endothelial permeability was measured by Evans blue assay in vivo and in vitro endothelium/pericyte co-culture system using a FITC-Dextran permeability assay. To identify the source of angiopoietin-1 (Ang-1), double staining is used in vivo and ELISA and qPCR are used in vitro. To determine the specific effect of Ang-1 on GM-CSF maintaining microvascular stabilization, Ang-1 siRNA was applied to inhibit Ang-1 production in vivo and in vitro. Wound closure was significantly accelerated and microvascular leakage was ameliorated after GM-CSF treatment in mouse wound sites. GM-CSF decreased endothelial permeability through tightening endothelial junctions and increased Ang-1 protein level that was derived by perictye. Furthermore, applications of siRNAAng-1 inhibited GM-CSF mediated protection of microvascular barrier integrity both in vivo and in vitro. Our data indicate that GM-CSF ameliorates microvascular barrier integrity via pericyte derived Ang-1 during wound healing. PMID- 29328542 TI - Towards the Detection of Explosive Taggants: Microwave and Millimetre-Wave Gas Phase Spectroscopies of 3-Nitrotoluene. AB - The monitoring of gas-phase mononitrotoluenes is crucial for defence, civil security and environmental interests because they are used as taggant for TNT detection and in the manufacturing of industrial compounds such as dyestuffs. In this study, we have succeeded to measure and analyse at high-resolution a room temperature rotationally resolved millimetre-wave spectrum of meta-nitrotoluene (3-NT). Experimental and theoretical difficulties have been overcome, in particular, those related to the low vapour pressure of 3-NT and to the presence of a CH3 internal rotation in an almost free rotation regime (V3 =6.7659(24) cm-1 ). Rotational spectra have been recorded in the microwave and millimetre-wave ranges using a supersonic jet Fourier Transform microwave spectrometer (Trot <10 K) and a millimetre-wave frequency multiplication chain (T=293 K), respectively. Spectral analysis of pure rotation lines in the vibrational ground state and in the first torsional excited state supported by quantum chemistry calculations permits the rotational energy of the molecule, the hyperfine structure due to the 14 N nucleus, and the internal rotation of the methyl group to be characterised. A line list is provided for future in situ detection. PMID- 29328543 TI - The Sarda Sheep Host Fecal Proteome. AB - The first characterization of the sheep fecal microbiota was recently reported, as obtained by using a multi meta-omic approach. Here, the mass spectra generated by single-run LC/high-resolution MS in the context of that study were reanalyzed using a host-specific database, in order to gain insights for the first time into the host fecal proteome of healthy Sarda sheep. On the whole, 5349 non-redundant tryptic peptide sequences were identified, belonging to 1046 different proteins. The "core" fecal proteome (common to all animals) comprised 431 proteins, mainly related to biological processes as immune response and proteolysis. Proteins involved in the immune/inflammatory response and peptidases were specifically investigated. This dataset provides novel insights into the repertoire of proteins secreted in the sheep intestinal lumen, and constitutes the basis for future shotgun and targeted proteomics studies aimed at monitoring changes in the sheep fecal proteome in response to production variables, infectious/inflammatory states, and variations in the gut microbiota. Data are available via ProteomeXchange with identifier PXD006145. PMID- 29328544 TI - Association between hedonic hunger and glycemic control in non-obese and obese patients with type 2 diabetes. AB - AIMS/INTRODUCTION: Higher hedonic hunger has been observed in obese individuals compared with those without obesity, but little is known about its association with glycemic management. We aimed to examine the association between hedonic hunger and glycemic control in non-obese and obese patients with type 2 diabetes. MATERIALS AND METHODS: Between April and November 2016, a total of 211 type 2 diabetes patients who underwent comprehensive diabetes assessments at a university-affiliated hospital were recruited into two groups according to body mass index: non-obese (body mass index 18.5-24.9 kg/m2 ) and obese (body mass index >=30 kg/m2 ) groups. All participants completed the Chinese version of the Power of Food Scale (PFS) for assessment of hedonic hunger. Good glycemic control was defined as glycated hemoglobin <7.0%. RESULTS: Compared with the non-obese group, the obese group showed higher PFS aggregated and subscale 'food available' scores (both P < 0.05). After adjustment for age, sex, disease duration of diabetes and insulin use, there were positive associations of glycated hemoglobin with PFS aggregated, subscale 'food available' and 'food present' scores in the obese group (all P for trend <0.05). The PFS aggregated score was negatively associated with good glycemic control in obese type 2 diabetes patients after adjustment using logistic regression analysis (adjusted odds ratio 0.42, 95% confidence interval 0.20-0.91, P = 0.027). By contrast, such associations were not observed in non-obese type 2 diabetes patients. CONCLUSIONS: Hedonic hunger had an independent and inverse association with good glycemic control in obese Chinese patients with type 2 diabetes, but not in their counterparts without obesity. PMID- 29328546 TI - Pleomorphic lipoma. PMID- 29328545 TI - Computer Simulation Elucidates Yeast Flocculation and Sedimentation for Efficient Industrial Fermentation. AB - Flocculation plays an important role in the immobilized fermentation of biofuels and biochemicals. It is essential to understand the flocculation phenomenon at physical and molecular scale; however, flocs cannot be studied directly due to fragile nature. Hence, the present study is focused on the morphological specificities of yeast flocs formation and sedimentation via the computer simulation by a single floc growth model, based on Diffusion-Limited Aggregation (DLA) model. The impact of shear force, adsorption, and cell propagation on porosity and floc size is systematically illustrated. Strong shear force and weak adsorption reduced floc size but have little impact on porosity. Besides, cell propagation concreted the compactness of flocs enabling them to gain a larger size. Later, a multiple flocs growth model is developed to explain sedimentation at various initial floc sizes. Both models exhibited qualitative agreements with available experimental data. By regulating the operation constraints during fermentation, the present study will lead to finding optimal conditions to control the floc size distribution for efficient fermentation and harvesting. PMID- 29328547 TI - Blow flies as urban wildlife sensors. AB - Wildlife detection in urban areas is very challenging. Conventional monitoring techniques such as direct observation are faced with the limitation that urban wildlife is extremely elusive. It was recently shown that invertebrate-derived DNA (iDNA) can be used to assess wildlife diversity in tropical rainforests. Flies, which are ubiquitous and very abundant in most cities, may also be used to detect wildlife in urban areas. In urban ecosystems, however, overwhelming quantities of domestic mammal DNA could completely mask the presence of wild mammal DNA. To test whether urban wild mammals can be detected using fly iDNA, we performed DNA metabarcoding of pools of flies captured in Berlin, Germany, using three combinations of blocking primers. Our results show that domestic animal sequences are, as expected, very dominant in urban environments. Nevertheless, wild mammal sequences can often be retrieved, although they usually only represent a minor fraction of the sequence reads. Fly iDNA metabarcoding is therefore a viable approach for quick scans of urban wildlife diversity. Interestingly, our study also shows that blocking primers can interact with each other in ways that affect the outcome of metabarcoding. We conclude that the use of complex combinations of blocking primers, although potentially powerful, should be carefully planned when designing experiments. PMID- 29328549 TI - Synthesis of polydopamine-functionalized magnetic graphene and carbon nanotubes hybrid nanocomposites as an adsorbent for the fast determination of 16 priority polycyclic aromatic hydrocarbons in aqueous samples. AB - A novel adsorbent made of polydopamine-functionalized magnetic graphene and carbon nanotubes hybrid nanocomposite was synthesized and applied to determine 16 priority polycyclic aromatic hydrocarbons by magnetic solid phase extraction in water samples. FTIR spectroscopy, transmission electron microscopy, scanning electron microscopy, and Raman spectroscopy consistently indicate that the synthesized adsorbents are made of core-shell nanoparticles well dispersed on the surface of graphene and carbon nanotubes. The major factors affecting the extraction efficiency, including the pH value of samples, the amount of adsorbent, adsorption time and desorption time, type and volume of desorption solvent, were systematically optimized. Under the optimum extraction conditions, a linear response was obtained for polycyclic aromatic hydrocarbons between concentrations of 10 and 500 ng/L with the correlation coefficients ranging from 0.9958 to 0.9989, and the limits of detection (S/N = 3) were between 0.1 and 3.0 ng/L. Satisfactory results were also obtained when applying these magnetic graphene/carbon nanotubes/polydopamine hybrid nanocomposites to detect polycyclic aromatic hydrocarbons in several environmental aqueous samples. PMID- 29328548 TI - Copper-Catalyzed Oxidative Reaction of beta-Keto Sulfones with Alcohols via C-S Bond Cleavage: Reaction Development and Mechanism Study. AB - A Cu-catalyzed cascade oxidative radical process of beta-keto sulfones with alcohols has been achieved by using oxygen as an oxidant. In this reaction, beta keto sulfones were converted into sulfinate esters under the oxidative conditions via cleavage of C-S bond. Experimental and computational studies demonstrate that a new pathway is involved in this reaction, which proceeds through the formation of the key four-coordinated CuII intermediate, O-O bond homolysis induced C-S bond cleavage and Cu-catalyzed esterification to form the final products. This reaction provides a new strategy to sulfonate esters and enriches the research content of C-S bond cleavage and transformations. PMID- 29328550 TI - Synthesis of Hollow Mesoporous TiO2 Microspheres with Single and Double Au Nanoparticle Layers for Enhanced Visible-Light Photocatalysis. AB - A facile method was used to prepare hollow mesoporous TiO2 and Au@TiO2 spheres using polystyrene (PS) templates. Au nanoparticles (NPs) were simultaneously synthesized and attached on the surface of PS spheres by reducing AuCl4- ions using sodium citrate which resulted in the uniform deposition of Au NPs. The outer coating of titania via sol-gel produced PS@Au@TiO2 core-shell spheres. Removing the templates from these core-shell spheres through calcination produced hollow mesoporous and crystalline Au@TiO2 spheres with Au NPs inside the TiO2 shell in a single step. Anatase spheres with double Au NPs layers, one inside and another outside of TiO2 shell, were also prepared. Different characterization techniques indicated the hollow mesoporous and crystalline morphology of the prepared spheres with Au NPs. Hollow anatase spheres with Au NPs indicated enhanced harvesting of visible light and therefore demonstrated efficient catalytic activity toward the degradation of organic dyes under the irradiation of visible light as compared to bare TiO2 spheres. PMID- 29328553 TI - Skin-colored papules on the elbows with a granuloma-annulare-like histological pattern. PMID- 29328552 TI - Changes in Chromosome Counts and Patterns in CHO Cell Lines upon Generation of Recombinant Cell Lines and Subcloning. AB - Chinese hamster ovary (CHO) cells are the number one production system for therapeutic proteins. A pre-requirement for their use in industrial production of biopharmaceuticals is to be clonal, thus originating from a single cell in order to be phenotypically and genomically identical. In the present study it was evaluated whether standard procedures, such as the generation of a recombinant cell line in combination with selection for a specific and stable phenotype (expression of the recombinant product) or subcloning have any impact on karyotype stability or homogeneity in CHO cells. Analyses used were the distribution of chromosome counts per cell as well as chromosome painting to identify specific karyotype patterns within a population. Results indicate that subclones both of the host and the recombinant cell line are of comparable heterogeneity and (in)stability as the original pool. In contrast, the rigorous selection for a stably expressing phenotype generated cell lines with fewer variation and more stable karyotypes, both at the level of the sorted pool and derivative subclones. We conclude that the process of subcloning itself does not contribute to an improved karyotypic homogeneity of a population, while the selection for a specific cell property inherently can provide evolutionary pressure that may lead to improved chromosomal stability as well as to a more homogenous population. PMID- 29328554 TI - Cross-Mapping of Nursing Care Terms Recorded in Italian Hospitals into the Standardized NNN Terminology. AB - PURPOSE: To evaluate if nursing diagnoses, interventions, and outcomes, as recorded by nurses in Italian hospitals, were semantically equivalent to the NANDA-I, NIC, and NOC (NNN) terminology. METHODS: A cross-mapping study using a multicenter design. Terms indicating nursing diagnoses, interventions, and outcomes were collected using the D-Catch instrument. Cross-mapping of these terms with NNN terminology was performed. FINDINGS: A sample of 137 nursing documentations was included. Over 80% of nursing diagnostic terms, interventions, and outcomes were cross-mapped into NNN terminology. CONCLUSIONS: The study showed that most of the natural terms used by nurses were semantically equivalent to the standardized terms of NNN terminology. IMPLICATIONS FOR NURSING PRACTICE: In Italy, the use of NNN terminology is recommended; however, further development of this terminology is needed. PMID- 29328551 TI - Failure of monotherapy in clinical practice in patients with type 2 diabetes: The Korean National Diabetes Program. AB - AIMS/INTRODUCTION: We investigated the failure of monotherapy in patients with type 2 diabetes mellitus in real practice settings. MATERIALS AND METHODS: The Korean National Diabetes Program was a prospective, multicenter observational cohort study of type 2 diabetes mellitus patients in Korea. Of the 3,950 patients enrolled in the study, we studied 998 who were continuously maintained on monotherapy for at least 90 days at six participating centers. To balance the baseline characteristics of patients in each group, we used propensity matching at a 1:1 ratio (metformin vs sulfonylureas) and 4:1 ratio (metformin vs meglitinides and metformin vs alpha-glucosidase inhibitors [aGIs]). The hazard ratios (HRs) of treatments (compared with metformin) were determined by Cox's proportional hazards regression modeling. RESULTS: The median follow-up time was 56 months, and monotherapy failed in 45% of all patients. The annual incidences of failure were 15.6%, 21.3%, 27% and 9.6% in the metformin, sulfonylurea, meglitinide and aGI groups. Compared with metformin, sulfonylureas and meglitinides were associated with higher risks of monotherapy failure (HR 1.39, 95% confidence interval [CI] 1.08-1.80; HR 1.92, 95% CI 1.13-3.27), and aGIs with risks similar to that of metformin (HR 0.80, 95% CI 0.44-1.45). When analyzed by failure type, sulfonylureas, meglitinides and aGIs were associated with a higher risk of a switch to other agents (HR 4.43, 95% CI 2.14-9.17; HR 18.80, 95% CI 6.21-56.93; HR 4.25, 95% CI 1.49-12.13), and aGIs with a lower risk of prescription of add-on second agents (HR 0.16, 95% CI 0.04-0.64). CONCLUSIONS: Metformin was associated with a lower failure risk than were sulfonylureas and meglitinides, but a comparable aGI failure rate. PMID- 29328555 TI - Syntheses and Properties of meso-Substituted Porphyrin Mesogens with Triazole Linkages and Peripheral Alkyl Chains. AB - Discotic mesogens P/n-M (n=12, 16, 18, M=2 H, Zn and Cu) bearing a porphyrin core, triazole linkages and peripheral 3,4,5-trialkoxybenzyl units have been synthesized by a click-chemistry approach. The thermal behavior, photophysical properties and morphologies of these compounds were investigated by polarized optical microscopy (POM), differential scanning calorimetry (DSC), XRD, UV and PL, SEM and TEM. These compounds can self-assemble into hexagonal columnar phases in their pure states and form organogels in 1,4-dioxane with unusually flower like sphere morphology. The supramolecular complexes of P/18-Zn with C70 or 4,7 di-4-pydriyl-2,1,3-benzothadiazole can display hexagonal columnar phases too. Additionally, zinc porphyrin compounds P/n-Zn show binding selectivity to Cu2+ among a series of cations in THF/H2 O. PMID- 29328557 TI - Clipping cancer with CRISPR: The precise gene-editing tool is showing promise in early cancer studies, although obstacles remain. PMID- 29328558 TI - Endovascular treatment of the subclavian artery aneurysm in high-risk patient - a single-center experience. AB - We present our first experience with endovascular treatment of 6 subclavian artery aneurysms (SAA) occurring in five male and one female patient. All patients, in our studies, according to ASA classification were high risk for open repair of SAA. The etiology of the all aneurysms was atherosclerosis degeneration of the artery. Two aneurysms were of intrathoracic location, then the other were extrathoracic. Symptoms related to subclavian artery aneurysms were present in two patients, compression and chest pain in one, and hemorrhage shock in second, while the remaining patients were asymptomatic. We preferred the Viabhan endoprosthesis for endovascular repair in 5 cases. In one patient with ruptured of subclavian artery aneurysm who was high-risk for open repair we made combined endovascular procedure. First at all, we covered the origin of left subclavian artery with thoracic stent graft and after that we put two coils in proximal part of subclavian artery. There was no operative mortality, and the early patency rate was 100%. The follow-up period was from 3 months to 3 years. During this period, one patient died of heart failure and one patient required endovascular reoperation due to endoleak type I. Endovascular treatment is recommended for all patients with subclavian artery aneurysm whenever this is possible due to anatomical reasons especially in high-risk patient with intrathoracic localization of aneurysm, to prevent potential complications. PMID- 29328559 TI - Detection of influenza viruses by reverse transcription polymerase chain reaction: WHO external quality assessment programme summary analysis, 2017. PMID- 29328556 TI - Coronary artery disease in decompensated patients undergoing liver transplantation evaluation. AB - Coronary artery disease (CAD) is an important contributor to morbidity and mortality in patients undergoing liver transplantation (LT). However, the current literature is limited by sampling bias and nondefinitive assessment of CAD. The current study examines the prevalence of CAD via per protocol coronary angiography and its relationship to etiology of liver disease in patients undergoing liver transplantation evaluation (LTE). Data on 228 patients were prospectively collected who had coronary angiography as part of LTE between 2011 and 2014. Coronary angiography was done in all patients age >=50 years or with CAD risk factors. CAD was defined as any coronary artery stenosis, whereas stenosis >= 70% in distribution of 1 or 3 major coronary arteries was considered as single- or triple-vessel disease. CAD was detected in 36.8% of patients, with the highest prevalence among nonalcoholic steatohepatitis (NASH) patients with cirrhosis (52.8%). Prevalence of single-vessel disease was higher among patients with NASH compared with hepatitis C virus (HCV) and alcoholic cirrhosis (15.1% versus 4.6% versus 6.6%; P = 0.02). Similarly, patients with NASH were more likely to have triple-vessel disease when compared with HCV and alcoholic cirrhosis (9.4% versus 0.9% versus 0%; P = 0.001). While adjusting for traditional risk factors for CAD, only NASH as etiology of liver disease remained significantly associated with CAD. Complications from diagnostic coronary angiography or percutaneous coronary intervention were low (2.6%). In conclusion, patients undergoing LTE have a high prevalence of CAD, which varies widely depending on etiology of liver cirrhosis. The procedural complications from coronary angiography are low. Liver Transplantation 24 333-342 2018 AASLD. PMID- 29328560 TI - Re-evaluating disability assessment in war veterans with posttraumatic stress disorder. AB - Background/Aim: Sametimes war veterans may resort to such strategies as preducing exaggerated symptoms and malingerating in order to obtain material compensation rights. The aim of this study was to assess the accuracy of the diagnosis of posttraumatic stress disorder (PTSD) on the basis of which war veterans were entitled to a financial compensation due to their disability. Methods: The diagnoses of 259 war veterans were re-evaluated. Veterans were previously diagnosed by a psychiatrist on local level, while regional state medical commission determined the degree of disability and the right to a financial compensation. A team of experts, consisting of psychiatrists with research experience in the field of traumatic stress and who were trained to use a structured interview for PTSD, conducted the evaluation of medical data from veterans' military records. The diagnostic process was conducted using the standardized diagnostic interview (Clinician-Administered PTSD Scale - CAPS), after which the diagnosis was reaffirmed or reviewed. This influenced disability status and consequential financial compensation. Results: There was a remarkable difference between the first diagnostic assessment of PTSD, conducted by the psychiatrists on local level, and the second evaluation conducted by the team of experts. In more than half of 259 veterans (52.1%) diagnosed with PTSD in the first assessment the diagnosis was not confirmed. The diagnosis was confirmed in 31.7% of veterans. Those veterans who were diagnosed with lifetime PTSD (7.3%) should also be treated as accuratelly diagnosed. This means that a total of 39% of the diagnoses were accurate. The rest (8.9%) were diagnosed with other diagnoses, but not PTSD, as was the case in the initial assessment. Conclusion: The possibility for war veterans to obtain the right to disability and financial compensation due to a diagnosis of PTSD might interfere with the proper diagnostic assessment and thus the treatment outcome. During the procedures for the obtention of these rights, exaggeration or simulation of symptoms are common. The quality of the diagnostic assessment of PTSD can be improved by applying evidence based standardized procedures. PMID- 29328561 TI - Lung ultrasound for severe acute dyspnea evaluation in critical care patients. PMID- 29328562 TI - Hereditary hemorrhagic telangiectasia with bilateral pulmonary vascular malformations: A case report. AB - Introduction: Hereditary hemorrhagic telangiectasia (HHT) also known as Osler Weber-Rendu syndrome is an autosomal dominant disease that occurs due to vascular dysplasia associated with the disorder in the signaling pathway of transforming growth factor beta (TGF-beta). The clinical consequence is a disorder of blood vessels in multiple organ systems with the existence of telangiectasia which causes dilation of capillaries and veins, are present from birth and are localized on the skin and mucosa of the mouth, respiratory, gastrointestinal and urinary tract. They can make a rupture with consequent serious bleeding that can end up with fatal outcome. Since there is a disruption of blood vessels of more than one organic system, the diagnosis is very complex and requires a multidisciplinary approach. Case report: We reported a 40-year-old female patient with a long-time evolution of problems, who was diagnosed and treated at the Clinic for Lung Diseases of the Military Medical Academy in Belgrade, Serbia, because of bilaterally pulmonary arteriovenous malformations associated with HHT. Embolization was performed in two acts, followed with normalization of clinical, radiological and functional findings with the cessation of hemoptysis, effort intolerance with a significant improvement of the quality of life. Conclusion: HHT is a rare dominant inherited multisystem disease that requires multidisciplinary approach to diagnosis and treatment. Embolization is the method of choice in the treatment of arteriovenous malformations with minor adverse effects and very satisfying therapeutic effect. PMID- 29328563 TI - Coexisting diseases modifying each other's presentation - lack of growth failure in Turner syndrome due to the associated pituitary gigantism. AB - Introduction: Turner syndrome presents with one of the most frequent chromosomal aberrations in female, typically presented with growth retardation, ovarian insufficiency, facial dysmorphism, and numerous other somatic stigmata. Gigantism is an extremely rare condition resulting from an excessive growth hormone (GH) secretion that occurs during childhood before the fusion of epiphyseal growth plates. The major clinical feature of gigantism is growth acceleration, although these patients also suffer from hypogonadism and soft tissue hypertrophy. Case report: We presented a girl with mosaic Turner syndrome, delayed puberty and normal linear growth for the sex and age, due to the simultaneous GH hypersecretion by pituitary tumor. In the presented case all the typical phenotypic stigmata related to Turner syndrome were missing. Due to excessive pituitary GH secretion during the period while the epiphyseal growth plates of the long bones are still open, characteristic stagnation in longitudinal growth has not been demonstrated. The patient presented with delayed puberty and primary amenorrhea along with a sudden appearance of clinical signs of hypersomatotropinism, which were the reasons for seeking medical help at the age of 16. Conclusion: Physical examination of children presenting with delayed puberty but without growth arrest must include an overall hormonal and genetic testing even in the cases when typical clinical presentations of genetic disorder are absent. To the best of our knowledge, this is the first reported case of simultaneous presence of Turner syndrome and gigantism in the literature. PMID- 29328564 TI - Pemphigus herpetiformis - a case report of a rare form of pemphigus and review of the literature. AB - Introduction: Pemphigus herpetiformis is the rare variant of pemphigus with characteristic clinical features, histopathological findings different from the convectional pemphigus, and immunological findings consistent with pemphigus. Case report: We presented a 65-year-old woman with initial pruritus followed by pruritic urticarial papules and plaques, some with annular rings of tense vesicles on the periphery, on the trunk and extremities, with no mucous lesions. Histopathological examination demonstrated spongiosis and intraepidermal vesicles in the mid or subcorneal epidermis in some biopsy specimen, with neutrophil and eosinophil infiltrate. Direct immunoflorescent microscopy revealed intercellular IgG deposition, most prominent in the upper layers of epidermis. Indirect immunoflorescent microscopy showed intercellular binding of IgG autoantibodies in the patient's sera. Initially the patient was threated with systemic corticosteroids and azathioprine, but dapson provided complete clinical remission. Conclusion: This entity was established 40 years ago, and around 100 patients have been reported worldwide. It is important to be aware of this particular form of pemphigus because clinical presentation, course of the disease and therapeutic approach are different from conventional forms of pemphigus. PMID- 29328565 TI - Urrets-Zavalia syndrome after deep anterior lamellar keratoplasty AB - Introduction: Urrets-Zavalia syndrome is an uncommon complication of the deep anterior lamellar keratoplasty in keratoconus. The manifestations of this syndrome are an irreversible mydriasis, iris atrophy and secondary glaucoma. Case report: Deep anterior lamellar keratoplasty was done for keratoconus with a presumably healed corneal hydrops in a 21-year-old Caucasian man. The graft remained clear, but the surgery was complicated by a fixed, dilated pupil, patches of iris atrophy, ectropium of the iris pigment layer and glaukomflecken in the lens. Conclusion: Although safer than penetrating keratoplasty, the deep anterior lamellar by not trying to secure an unhealed Descemet's membrane with air. Instead, a new Descemet's membrane transplanted within a penetrating graft is a safer choice. PMID- 29328566 TI - Contribution of Dr. Laza Popovic to the development of Serbian and Yugoslav Sokol movement. PMID- 29328567 TI - Neglected zoonosis: The prevalence of Salmonella spp. in pet reptiles in Serbia. PMID- 29328568 TI - The attitudes of medical students towards rare diseases: A cross-sectional study. AB - Background/Aim: Rare diseases are chronic, degenerative and may lead to permanent disability. We aimed to assess knowledge and attitudes of the 3rd and 6th year medical students towards the treatment of rare diseases in Serbia. Methods. In this cross-sectional study, two samples of students were questioned for a survey: 350/446 (78.48%) students of the 3rd year, and 242/517 (46.81%) students of the 6th year. Methods: In this cross-sectional study, two samples of students were questioned for a survey: 350/446 (78.48%) students of the 3rd year, and 242/517 (46.81%) students of the 6th year. Results: Sixth year students estimated that they were more informed on the issue analyzed than the 3rd year students (median value of 4 and 3, interquartile range of 3-5, and 1-4, respectively; p < 0.05). However, a significant percentage of participants estimated incorrectly the prevalence of rare diseases according to the European Union standards (3rd year - 42.68%, 6th year - 49.55%). Core curriculum subjects were the main source of information on rare diseases (3rd year - 63.14%; 6th year - 92.14%). Our participants agreed that the most important problems are the following: high drug prices, difficult access to drugs and lack of public information. Students found, without any differences, that community access to effective drugs for rare disease should be improved (median value - 10, interquartile range 8-10 in both groups, p < 0.05). In order to improve pharmacotherapy of rare diseases in Serbia, the participants suggested establishment of a National Plan for Rare Diseases, approval of more appropriate drugs, simplified access to appropriate medicines, and more rapid diagnostics. Conclusion: It is necessary to improve the knowledge and attitudes of medical students towards pharmacotherapy of rare diseases. [Projekat Ministarstva nauke Republike Srbije, br. 175023] PMID- 29328582 TI - Adverse event reporting in Slovenia - the influence of safety culture, supervisors and communication. AB - Background/Aim: The provision of safe healthcare is considered a priority in European Union (EU) member states. Along with other preventative measures in healthcare, the EU also strives to eliminate the "causes of harm to human health". The aim of this survey was to determine whether safety culture, supervisors and communication between co-workers influence the number of adverse event reports submitted to the heads of clinical departments and to the management of an institution. Methods: This survey is based on cross-sectional analysis. It was carried out in the largest Slovenian university hospital. We received 235 completed questionnaires. Respondents included professionals in the fields of nursingcare, physiotherapy, occupational therapy and radiological technology. Results: Safety culture influences the number of adverse event reports submitted to the head of a clinical department from the organizational point of view. Supervisors and communication between co-workers do not influence the number of adverse event reports. Conclusion: It can be concluded that neither supervisors nor the level of communication between co-workers influence the frequency of adverse event reporting, while safety culture does influence it from an organizational point of view. The presumed factors only partly influence the number of submitted adverse event reports, thus other causes of under-reporting must be sought elsewhere. PMID- 29328583 TI - Analysis of reconstructive methods in surgical treatment of nasal skin defects. AB - Background/Aim: Surgeons often face with the problem when selecting a reconstructive method for nasal skin defects. The aim of this study was to determine functional and aesthetic character-istics of different reconstructive methods used for skin defects in different regions of the nose. Methods: The study involved 44 patients with basocellular carcinoma in nasal area. The nasal skin was divided into four subunits: the tip, the alar lobules, the side-walls and the dorsum. The average skin defect size was 10 mm in diameter. Local flaps and full thickness skin grafts were used in the study. We analyzed the functional and esthetic results of dif-ferent reconstructive methods used for nasal defects in different regions of the nose 12 months after the surgery. Results: The study shows that different reconstructive methods produce dif-ferent functional and esthetic results in the same nasal subunits and that the same reconstructive method produces different re-sults in different nasal subunits. Conclusions: Estimation the postoperative functional and esthetic characteristics of different reconstructive methods is one of the basic preconditions of suc-cessful reconstruction. PMID- 29328596 TI - Influence of dental filling material type on the concentration of interleukin 9 in the samples of gingival crevicular fluid. AB - Background/Aim: Several cytokines and lymphokines (IL1beta, ENA78, IL6, TNFalpha, IL8 and S100A8) are expressed during dental pulp inflammation. Analysis of gingival crevicu-lar fluid (GCF) offers a non-invasive means of studying gen-eral host response in oral cavity. Although GCF levels of various mediators could reflect the state of inflammation both in dental pulp and gingiva adjacent to a tooth, GCF samples of those without significant gingivitis could be inter-preted as reflection of pulpal process. The aim of this study was to investigate IL9 GCF values in patients with dental car-ies and to assess possible influence of various dental fillings materials on local IL9 production. Methods: The study group included 90 patients, aged 18-70, with inclusion and exclusion criteria in the prospective clinical study. Of the 6 types of material used for the restoration of prepared cavities, 3 were intended for temporary and 3 for definitive restora-tion. According to dental fillings weight, all the participants were divided into 3 groups: those with fillings lighter than 0.50 g, those with 0.50-1.00 g, and those with fillings heavier than 1.00 g. Samples were taken from gingival sulcus using the filter paper technique. Clinical parameters were deter-mined by bleeding index, plaque index (Silness-Lou, 0-3), gingival index (0-3), and gingival sulcus depth. Cytokine con-centrations were assessed using commercially available cy-tomix. Results: According to the weight of dental fillings, there was a clear decreament trend of IL9 values meaning that dental defects greater than 1.00 g of dental filling were associated with lower GCF IL9 concentration. The IL9 val-ues correlated with the degree of gingival index and depth of gingival sulcus, being higher with more advanced gingivitis and more pronounced anatomical changes in the tooth edge. Different filling materials exerted various local IL9 responses. Zink polycarbonate cement and amalgam fillings induced a significant and long-lasting local IL9 decrement, while the use of Tetric EvoCeram and GMA-BISK significantly increased IL9 levels. Conclusion: The obtained results indicate that IL9 GCF could be regarded as a measure of odontoblasts' re-sponse to the extensity of dental caries. The type of material used for dental fillings could profoundly alter biological func-tion of gingival and pulpal cells. Also, the results obtained in this study suggest that some materials could even enhance wound repair by modulating macrophage activation. PMID- 29328608 TI - Work motivation and job satisfaction of health workers in urban and rural areas. AB - Background/Aim: Motivated and job satisfied health professionals represent a basis of success of modern health institutions. The aim of this study was to investigate whether there was a difference in work motivation and job satisfaction between health workers in urban and rural areas in the region of Central Serbia. Methods: The study included 396 health professionals from urban setting, and 436 from a rural area, employed in four randomly selected health facilities. An anonymous questionnaire was used for data gathering. Statistical analysis was performed using chi2, Student t-test, Spearman's correlation coefficient, and logistic regression analysis. Results: Urban health professionals were significantly more motivated and job satisfied than respondents from rural area. In relation to work motivation factors and job satisfaction of health professionals in urban and rural areas, there were no significant differences in working conditions and current equipment, and in terms of job satisfaction there were no significant differences in relation to income either. Conclusion: In order to increase the level of work motivation and job satisfaction of health workers in rural areas, apart from better income, they should get more assistance and support from their supervisors, and awards for good job performance; interpersonal relationships, promotion and advancement opportunities, managerial performance and cooperation at work should be improved; employment security should be provided, as well as more independence at work, with professional supervision of health workers. PMID- 29328609 TI - Effect of surgical drill guide and irrigans temperature on thermal bone changes during drilling implant sites - thermographic analysis on bovine ribs. AB - Background/Aim: During drilling implant sites, mechanical energy is converted into thermal one resulting in transient rise in temperature of surrounding bone. The temperature of 47 degrees C exeeding one minute impairs osseointegration, compromises mechanical properties of the local bone and could cause early implant failure. This in vitro study aimed to assess the effect of surgical drill guide and temperature of irrigans on thermal changes of the local bone during drilling implant sites, and to test the influence of irrigans temperature on the temperature of surgical drill guide. Methods: A total of 48 specimens obtained from bovine ribs were randomly allocated to four experimental conditions according to the 2 x 2 factorial design: drill guide (with or without) and saline (at 25 degrees C or 5 degrees C). Real-time infrared thermography was used as a method for temperature measurement. The primary outcome was bone temperature change during drilling implant sites measured at 3 osteotomy depths, whereas the second one was change in the temperature of the drill guide. Data were analyzed by Brunner and Langer nonparametric analysis and Wilcoxon test. Results: The effect of drill guide on the changes of bone temperature was significant at the entrance of osteotomy, whereas the effect of saline temperature was significant at all osteotomy levels (p < 0.001). No significant interaction was found (p > 0.05). Guided surgery and irrigation with saline at 25 degrees C were associated with the highest bone temperature increase. Increase in drill guide temperature was significantly higher when saline at 25 degrees C was used (p < 0.001). Conclusion: Guided implant site preparation generates higher temperature of the local bone than conventional drilling, not exceeding the threshold for thermal bone necrosis. Although saline at room temperature provides sufficient heat control during drilling, cooled saline is more effective regardless the use of surgical drill guide. PMID- 29328610 TI - Major risk factors of maternal adverse outcome in women with two or more previous cesarean sections. AB - Background/Aim: Maternal morbidity is defined as any condition that is attributed to or aggravated by pregnancy and childbirth that has a negative impact on the woman's wellbeing. In recent years, a growing trend of cesarean section rates can be seen throughout the world. The aim of this study was to assess factors that might have major impact on maternal adverse outcome in women with two or more previous cesarean sections. Methods: This retrospective study included women with single term pregnancy after two or more cesarean deliveries in a 10-year period (2004-2013) in the University Clinic "Narodni front" in Belgrade, Serbia. Medical records were reviewed for clinical data for maternal intraoperative and early postoperative complications regarding gestational age at delivery, the number of previous cesarean sections and mode of surgery (elective or emergency). Results: A total of 551 patients were included in the study. At 37 completed weeks delivered 14.1%, at 38 delivered 45.2% and at 39 completed weeks 40.7% patients. Women younger than 35 years more often delivered after 39 completed weeks compared with those over 35 years (69.2% vs 30.8%, p < 0.05). The overall rate of maternal complications in the study group was 16.5% with no statistical difference by gestational age at delivery. The overall rate of maternal adverse outcome was significantly less in the patients with three as compared with those with four or more cesareans (10.4% vs 66.7%, p < 0.05). There was a statistically significant difference between these groups of women regarding complications: scar dehiscence, the presence of adhesions, blood transfusion and admission in intensive care unit. Elective cesarean delivery was with less maternal complications compared with emergency cesarean deliveries (12.9% vs 27.3%, p < 0.05). Conclusion: Termination of pregnancy before completed 39 weeks does not decrease maternal morbidity. The major impact on maternal complications has the number of previous cesarean deliveries (>= 3), as well as emergency cesarean section. Patients should be informed about potential risks for maternal health with increasing number of cesarean deliveries, especially after the first cesarean section when counseling in elective repeat cesarean vs trial of labor. PMID- 29328611 TI - Posttraumatic stress disorder and art group therapy: Self-expression of traumatic inner world of war veterans. AB - Background/Aim: Art therapy and drawings may serve as alternative means of expression and release from trauma among veterans diagnosed with posttraumatic stress disorder (PTSD). Methods: The retrospective clinical study of drawings of war veterans was performed. A total of 89 war veterans met the Diagnostics and Statistical Manual of Mental Disorders (DSM-IV) PTSD criteria and were consecutively admitted to the Day Hospital during 5 years. Art group therapy as part of integrative treatment was performed once a week. The group was open and heterogeneous. Qualitative analysis of drawings content and group protocols were obtained. The drawings were made by free associations. War related themes were explored and descriptive statistics were applied. Results: The most frequent type of common themes of combat stress presented battle and witnessing wounded and killed combatants. Less frequent were themes of graves, destroyed cities and broken trees. The veterans preferred black and red colors with association to death, blood, wounds and destroyed objects. Conclusion: Drawing could provide a unique, complex, visual illustration of war traumatic experiences and memories of posttraumatic stress disorder veterans. Art group discussion might enhance war veterans' verbal expression due to group support in safe setting. As adjuvant psychotherapy, art group therapy could enrich awareness and the ability of clinicians to treat hard posttraumatic stress disorder symptoms related to uncovered war trauma. PMID- 29328612 TI - The impact of in-hospital nutritional status deterioration on treatment outcome of adult gastroenterological patients. AB - Background/Aim: In the current literature, data on impact of intrahospital changes in patients' nutritional status on the treatment outcome are limited. The aim of this study was to investigate the relationship between nutritional status deterioration and the treatment outcome among hospitalized gastroenterological patients. Methods: In 650 adult gastroenterological patients nutritional status on admission and at discharge was evaluated using the 6 nutritional status assessment parameters: body mass index, triceps skinfold thickness, mid-upper arm muscle circumference, serum albumin concentration, lymphocyte count and unintentional weight loss. The influence on treatment outcome was tested for the nutritional status on admission, nutritional status at discharge and intrahospital nutritional status deterioration. Results: The incidence of favorable outcome in the non-undernourished and undernourished patients on admission was in the range 93.4-97.3% and 81.2- 91.2%, respectively. The incidence of favorable outcome in the non-undernourished and undernourished patients at discharge was in the range 94-97.4% and 80.8-88.1%, respectively. Favorable outcomes were obtained in 95.6-98.9% of the patients without nutritional status deterioration and in 87.1-90.3% of the patients with nutritional status deterioration. Intrahospital nutritional status deterioration significantly influenced the outcome, no matter what assessment parameter had been used (p < 0.001 for all the applied parameters). Furthermore, only the deterioration of nutritional status was found to be an independent predictor of treatment outcome (multivariate analysis Forwald Wald, p L 0.001; relative risk (RR) = 0.104-0.350; confidence intervals (CI) = 0.037-0.186/0.297-0.657). Conclusion: Deterioration of nutritional status is an independent predictor of adverse outcome. PMID- 29328613 TI - The role of lung transthoracic ultrasound in clinical practice. PMID- 29328614 TI - Very late stent thrombosis of bare-metal coronary stent nine years after primary percutaneous coronary intervention. AB - Introduction: Stent thrombosis (ST) in clinical practice can be classified according to time of onset as early (0-30 days after stent implantation), which is further divided into acute (< 24 hours) and subacute (1-30 days), late (> 30 days) and very late (> 12 months). Myocardial reinfaction due to very late ST in a patient receiving antithrombotic therapy is very rare, and potentially fatal. The procedure alone and related mechanical factors seem to be associated with acute/subacute ST. On the other hand, in-stent neoathero-sclerosis, inflammation, premature cessation of antiplatelet therapy, as well as stent fracture, stent malapposition, un-covered stent struts may play role in late/very late ST. Some findings implicate that the etiology of very late ST of bare-metal stent (BMS) is quite different from those following drug-eluting stent (DES) implantation. Case report: We presented a 56-year old male with acute inferoposterior ST segment elevation myocardial infarction (STEMI) related to very late stent thrombosis, 9 years after BMS implantation, despite antithrombotic therapy. Thrombus aspiration was successfully performed followed by percutaneous coronary intervention (PCI) with implantation of DES into the pre-viously implanted two stents to solve the in-stent restenosis. Conclusion: Very late stent thrombosis, although fortu nately very rare, not completely understood, might cause myocardial reinfaction, but could be successfully treated with thrombus aspiration followed by primary PCI. Very late ST in the presented patient might be connected with neointimal plaque rupture, followed by thrombotic events. PMID- 29328615 TI - Ilizarov method as limb salvage in treatment of massive femoral defect after unsuccessful tumor arthroplasty. AB - Introduction: Surgical management of massive bone defects is very challenging in terms of estimating possibilities of saving the extremity and adequate method that can make it possible. Selection of methods is additionally limited in the presence of infection at site of defect. Case report: The female patient, diagnosed with Ewing sarcoma was treated by segmental bone resection and implantation of Kotz modular tumor endoprosthesis. After 5 years the signs of infection occured and persisted with low grade intensity. After falling, 12 years following implantation, the patient acquired periprosthetic fracture. Then endoprosthesis was removed, all along with surgical debridement of wound and application of the Ilizarov apparatus. The apparatus was applied, osteotomy of callus and the tibia performed with transport of bone segments, untill reconstruction of defect and arthrodesis of the knee was achieved. Conclusion: The Ilizarov apparatus offered us huge possibilities for management of massive bone defects with natural bone which has superior biomechanical characteristics comparing to the implant. The most frequent complication of this method is a prolonged treatment period that demands good patient selection and preparation and wide surgical experience. PMID- 29328616 TI - Cranial reconstruction with prefabricated 3D implant after a gunshot injury: A case report. AB - Introduction: Complex defects of skull bones with different etiology, still present the challenge in reconstructive surgery. The goldstandard for cranioplasty is the autologous calvarial bone graft removed during surgery which cannot be always applied, especially in gunshot wounds for sometimes complete bone destruction. Autologous reconstruction with split calvarial, rib bones or iliac bone graft is also possible. Materials routinely used for reconstructions like titanium mesh, polymethyl metacrylate (PMMA), and other have numerous disadvantages and limitations. Case report: We presented a patient with gunshot injury to the head with residual large bone defect in the frontal region, with involvement of the skull base, and open frontal sinus. After conservative treatment, six months after the injury, reconstruction of the residual bone defect was performed. The chosen material was computerdesigned PEEK-OPTIMA(r) implant, manufactured on the basis of MSCT scan. This material has not been used in this region so far. The postoperative and follow-up period of the next 12 months passed without surgical complications, neurological deficit, with satisfactory functional and aesthetic results. Conclusion: Implanted bone replacement was designed and manufactured precisely according to the skull defect, and we found it suitable for the treatment of complex defects of the cranium. Early results are in favor of this cranioplasty method over standardized materials. Therefore, this material is expected to become a method of choice for reconstructive surgery of bony defects of the face and skull especially in complex cases. PMID- 29328617 TI - Sinter-Resistant and Highly Active Sub-5 nm Bimetallic Au-Cu Nanoparticle Catalysts Encapsulated in Silica for High-Temperature Carbon Monoxide Oxidation. AB - A novel gold-copper-based silica-encapsulated mixed metal oxide (MMO) core-shell catalyst-with sub-5 nm MMO particles-was successfully synthesized via a reverse micelle process. The SiO2-encapsulated MMO catalyst was reduced under hydrogen flow to produce an Au-Cu@SiO2 catalyst. X-ray diffraction and X-ray photoelectron spectroscopy characterization confirmed the presence of Au-Cu nanocomposites in the catalyst, while transmission electron microscopy characterization revealed the core-shell structure of the catalyst with the presence of sub-5 nm Au-Cu nanoparticle cores inside SiO2 shells. Brunauer-Emmett-Teller surface characterization identified that the catalyst is porous and bimodal in nature. The effects of promoter metal ion, catalyst pretreatment (calcination), and the presence of CO2 in the feed stream on carbon monoxide (CO) oxidation over the Au Cu@SiO2 catalyst were examined in the temperature range of 50-400 degrees C. A catalyst stability test was performed at 300 degrees C by conducting a CO oxidation reaction for 116 h on stream. The catalyst exhibited excellent efficacy for CO oxidation, with ~100% conversion to CO2 achieved at 400 degrees C. While the presence of Cu enhanced the CO conversion at low to intermediate temperatures (50-300 degrees C), silica encapsulation of the Au-Cu nanocomposites facilitated remarkable stability of the catalyst. The activity of the Au-Cu@SiO2 catalyst is suitable for its application in automotive after-treatment devices, especially in low-temperature combustion engine exhausts. PMID- 29328618 TI - Highly Crystalline Multicolor Carbon Nanodots for Dual-Modal Imaging-Guided Photothermal Therapy of Glioma. AB - Imaging-guided site-specific photothermal therapy (PTT) of glioma and other tumors in central nervous system presents a great challenge for the current nanomaterial design. Herein, an in situ solid-state transformation method was developed for the preparation of multicolor highly crystalline carbon nanodots (HCCDs). The synthesis yields 6-8 nm-sized HCCDs containing a highly crystalline carbon nanocore and a hydrophilic surface, which therefore simultaneously provide strong photoacoustic and photothermal performances as well as tunable fluorescence emission. In vitro and in vivo results demonstrate that the novel HCCDs have high water dispersity and good biocompatibility, but potent tumor cell killing upon near-infrared irradiation. As demonstrated in U87 glioma-bearing mice, HCCDs specifically accumulate in brain tumors and facilitate dual-modal imaging-guided PTT, with therapeutic antitumoral effects without any apparent damage to normal tissues. PMID- 29328619 TI - Characterization of the Polyspecific Transferase of Murine Type I Fatty Acid Synthase (FAS) and Implications for Polyketide Synthase (PKS) Engineering. AB - Fatty acid synthases (FASs) and polyketide synthases (PKSs) condense acyl compounds to fatty acids and polyketides, respectively. Both, FASs and PKSs, harbor acyltransferases (ATs), which select substrates for condensation by beta ketoacyl synthases (KSs). Here, we present the structural and functional characterization of the polyspecific malonyl/acetyltransferase (MAT) of murine FAS. We assign kinetic constants for the transacylation of the native substrates, acetyl- and malonyl-CoA, and demonstrate the promiscuity of FAS to accept structurally and chemically diverse CoA-esters. X-ray structural data of the KS MAT didomain in a malonyl-loaded state suggests a MAT-specific role of an active site arginine in transacylation. Owing to its enzymatic properties and its accessibility as a separate domain, MAT of murine FAS may serve as versatile tool for engineering PKSs to provide custom-tailored access to new polyketides that can be applied in antibiotic and antineoplastic therapy. PMID- 29328620 TI - Thermal Stability of Mixed Cation Metal Halide Perovskites in Air. AB - We study the thermal stability in air of the mixed cation organic-inorganic lead halide perovskites Cs0.17FA0.83Pb(I0.83Br0.17)3 and Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3. For the latter compound, containing both MA+ and FA+ ions, thermal decomposition of the perovskite phase was observed to occur in two stages. The first stage of decomposition occurs at a faster rate compared to the second stage and is only observed at relatively low temperatures (T < 150 degrees C). For the second stage, we find that both decomposition rate and the activation energy have similar values for Cs0.05(MA0.17FA0.83)0.95Pb(I0.83Br0.17)3 and Cs0.17FA0.83Pb(I0.83Br0.17)3, which suggests that the first stage mainly involves reaction of MA+ and the second stage mainly FA+. PMID- 29328621 TI - Correction to Improved Synthesis of Graphene Oxide. PMID- 29328623 TI - Mimicking Biological Synaptic Functionality with an Indium Phosphide Synaptic Device on Silicon for Scalable Neuromorphic Computing. AB - Neuromorphic or "brain-like" computation is a leading candidate for efficient, fault-tolerant processing of large-scale data as well as real-time sensing and transduction of complex multivariate systems and networks such as self-driving vehicles or Internet of Things applications. In biology, the synapse serves as an active memory unit in the neural system and is the component responsible for learning and memory. Electronically emulating this element via a compact, scalable technology which can be integrated in a three-dimensional (3-D) architecture is critical for future implementations of neuromorphic processors. However, present day 3-D transistor implementations of synapses are typically based on low-mobility semiconductor channels or technologies that are not scalable. Here, we demonstrate a crystalline indium phosphide (InP)-based artificial synapse for spiking neural networks that exhibits elasticity, short term plasticity, long-term plasticity, metaplasticity, and spike timing-dependent plasticity, emulating the critical behaviors exhibited by biological synapses. Critically, we show that this crystalline InP device can be directly integrated via back-end processing on a Si wafer using a SiO2 buffer without the need for a crystalline seed, enabling neuromorphic devices that can be implemented in a scalable and 3-D architecture. Specifically, the device is a crystalline InP channel field-effect transistor that interacts with neuron spikes by modification of the population of filled traps in the MOS structure itself. Unlike other transistor-based implementations, we show that it is possible to mimic these biological functions without the use of external factors (e.g., surface adsorption of gas molecules) and without the need for the high electric fields necessary for traditional flash-based implementations. Finally, when exposed to neuronal spikes with a waveform similar to that observed in the brain, these devices exhibit the ability to learn without the need for any external potentiating/depressing circuits, mimicking the biological process of Hebbian learning. PMID- 29328622 TI - Laser-Induced Conversion of Teflon into Fluorinated Nanodiamonds or Fluorinated Graphene. AB - Laser-assisted materials fabrication is an advanced technique that has propelled recent carbon synthesis approaches. Direct laser writing on polyimide or lignocellulose materials by a CO2 laser has successfully transformed the substrates into hierarchical graphene. However, formation of other carbon allotropes such as diamond and fullerene remains challenging. Here, we report the direct synthesis of fluorinated nanodiamonds or fluorinated graphene by treating polytetrafluoroethylene (Teflon, or PTFE) with a 9.3 MUm pulsed CO2 laser under argon; no exogenous fluorine source is needed. The laser is part of a commercial laser cutting/scribing system that is found in most machine shops. Therefore, it is a readily accessible tool. This discovery could inspire future development for the laser-assisted synthesis of functionalized carbon allotropes. PMID- 29328624 TI - Secondary-Phase Stochastics in Lithium-Ion Battery Electrodes. AB - Lithium-ion battery electrodes exhibit complex interplay among multiple electrochemically coupled transport processes, which rely on the underlying functionality and relative arrangement of different constituent phases. The electrochemically inactive solid phases (e.g., conductive additive and binder, referred to as the secondary phase), while beneficial for improved electronic conductivity and mechanical integrity, may partially block the electrochemically active sites and introduce additional transport resistances in the pore (electrolyte) phase. In this work, the role of mesoscale interactions and inherent stochasticity in porous electrodes is elucidated in the context of short range (interface) and long-range (transport) characteristics. The electrode microstructure significantly affects kinetically and transport-limiting scenarios and thereby the cell performance. The secondary-phase morphology is also found to strongly influence the microstructure-transport-kinetics interactions. Apropos, strategies have been proposed for performance improvement via electrode microstructural modifications. PMID- 29328625 TI - Double-Channel Piezotronic Transistors for Highly Sensitive Pressure Sensing. AB - Piezotronic transistors (PTs) that utilize inner crystal potential generated by interface piezoelectric polarization charges as the gate voltage have great potential applications in force/pressure-triggered or controlled electronic devices, sensors, human-machine communication, and microelectromechanical systems. Although the performance of PTs has been partially enhanced by exploring special materials with different geometries or high piezoelectricity, few studies have been focused on the structure design of PT itself to more effectively enhance the performance and structural reliability. Here, an integrated double channel plane piezotronic transistor is invented as a high-performance pressure sensing technology. Owing to the double-channel modulation and the plane structure, the PT has the merits of high pressure sensitivity (84.2-104.4 meV/MPa) and high structural reliability, which provides the opportunity for great applications, such as human-computer interfacing, biosensing, and health monitoring. PMID- 29328626 TI - Polystyrene-Core, Silica-Shell Scintillant Nanoparticles for Low-Energy Radionuclide Quantification in Aqueous Media. AB - beta-particle emitting radionuclides are useful molecular labels due to their abundance in biomolecules. Detection of beta-emission from 3H, 35S, and 33P, important biological isotopes, is challenging due to the low energies (Emax <= 300 keV) and short penetration depths (<=0.6 mm) in aqueous media. The activity of biologically relevant beta-emitters is usually measured in liquid scintillation cocktail (LSC), a mixture of energy-absorbing organic solvents, surfactants, and scintillant fluorophores, which places significant limitations on the ability to acquire time-resolved measurements directly in aqueous biological systems. As an alternative to LSC, we developed polystyrene-core, silica-shell nanoparticle scintillators (referred to as nanoSCINT) for quantification of low-energy beta-particle emitting radionuclides directly in aqueous solutions. The polystyrene acts as an absorber for energy from emitted beta-particles and can be loaded with a range of hydrophobic scintillant fluorophores, leading to photon emission at visible wavelengths. The silica shell serves as a hydrophilic shield for the polystyrene core, enabling dispersion in aqueous media and providing better compatibility with water-soluble analytes. While polymer and inorganic scintillating microparticles are commercially available, their large size and/or high density complicates effective dispersion throughout the sample volume. In this work, nanoSCINT nanoparticles were prepared and characterized. nanoSCINT responds to 3H, 35S, and 33P directly in aqueous solutions, does not exhibit a change in scintillation response between pH 3.0 and 9.5 or with 100 mM NaCl, and can be recovered and reused for activity measurements in bulk aqueous samples, demonstrating the potential for reduced production of LSC waste and reduced total waste volume during radionuclide quantification. The limits of detection for 1 mg/mL nanoSCINT are 130 nCi/mL for 3H, 8 nCi/mL for 35S, and <1 nCi/mL for 33P. PMID- 29328628 TI - Analysis of Gluten in a Wheat-Gluten-Incurred Sorghum Beer Brewed in the Presence of Proline Endopeptidase by LC/MS/MS. AB - Most gluten-reduced beers are produced using an enzyme called proline endopeptidase (PEP), which proteolyzes the gluten by cleaving at proline residues. However, the gluten content of beers brewed in the presence of PEP cannot be verified since current analytical methods are not able to accurately quantitate gluten in fermented foods. In this work, mass spectrometry was used to qualitatively characterize the gluten in a wheat-gluten-incurred sorghum model beer brewed with and without the addition of PEP. Hydrolyzed gluten peptides and chymotryptic gluten peptides produced from intact gluten proteins were detected in beer brewed in the presence of up to 6 times the manufacturer's recommended dosage of PEP. The observation of chymotryptic gluten peptides indicates that some gluten proteins remained, at least partially, intact after fermentation and enzymatic treatment. Less intact gluten was observed in beer brewed in the presence of PEP, but more hydrolyzed gluten peptides were consequently observed in PEP-containing beer. Gluten peptides that contained immunogenic sequences known to be associated with celiac disease were detected in PEP-containing beer. PMID- 29328627 TI - Effect of Surface Chemistry and Associated Protein Corona on the Long-Term Biodegradation of Iron Oxide Nanoparticles In Vivo. AB - The protein corona formed on the surface of a nanoparticle in a biological medium determines its behavior in vivo. Herein, iron oxide nanoparticles containing the same core and shell, but bearing two different surface coatings, either glucose or poly(ethylene glycol), were evaluated. The nanoparticles' protein adsorption, in vitro degradation, and in vivo biodistribution and biotransformation over four months were investigated. Although both types of nanoparticles bound similar amounts of proteins in vitro, the differences in the protein corona composition correlated to the nanoparticles biodistribution in vivo. Interestingly, in vitro degradation studies demonstrated faster degradation for nanoparticles functionalized with glucose, whereas the in vivo results were opposite with accelerated biodegradation and clearance of the nanoparticles functionalized with poly(ethylene glycol). Therefore, the variation in the degradation rate observed in vivo could be related not only to the molecules attached to the surface, but also with the associated protein corona, as the key role of the adsorbed proteins on the magnetic core degradation has been demonstrated in vitro. PMID- 29328629 TI - Coupled Triboelectric Nanogenerator Networks for Efficient Water Wave Energy Harvesting. AB - Water wave energy is a promising clean energy source, which is abundant but hard to scavenge economically. Triboelectric nanogenerator (TENG) networks provide an effective approach toward massive harvesting of water wave energy in oceans. In this work, a coupling design in TENG networks for such purposes is reported. The charge output of the rationally linked units is over 10 times of that without linkage. TENG networks of three different connecting methods are fabricated and show better performance for the ones with flexible connections. The network is based on an optimized ball-shell structured TENG unit with high responsivity to small agitations. The dynamic behavior of single and multiple TENG units is also investigated comprehensively to fully understand their performance in water. The study shows that a rational design on the linkage among the units could be an effective strategy for TENG clusters to operate collaboratively for reaching a higher performance. PMID- 29328631 TI - Controllable Interfacial Coupling Effects on the Magnetic Dynamic Properties of Perpendicular [Co/Ni]5/Cu/TbCo Composite Thin Films. AB - Dynamic magnetic properties in perpendicularly exchange-coupled [Co/Ni]5/Cu (tCu = 0-2 nm)/TbCo structures show strong dependences on the interfacial antiferromagnetic strength Jex, which is controlled by the Cu interlayer thickness. The precession frequency f and effective damping constant alphaeff of a [Co/Ni]5 multilayer differ distinctly for parallel (P) and antiparallel (AP) magnetization orientation states. For samples with a thin tCu, f of the AP state is apparently higher, whereas alphaeff is lower than that in the P state, owing to the unidirectional exchange bias effect (HEB) from the TbCo layer. The differences in f and alphaeff between the two states gradually decrease with increasing tCu. By using a uniform precession model including an additional HEB term, the field-dependent frequency curves can be well-fitted, and the fitted HEB value is in good agreement with the experimental data. Moreover, the saturation damping constant alpha0 displays a nearly linear correlation with Jex. It decreases significantly with Jex and eventually approaches a constant value of 0.027 at tCu = 2 nm where Jex vanishes. These results provide a better understanding and effective control of magnetization dynamics in exchange-coupled composite structures for spintronic applications. PMID- 29328630 TI - Effects of Secondary Phases on the High-Performance Colossal Permittivity in Titanium Dioxide Ceramics. AB - The intensive demands of microelectronics and energy-storage applications are driving the increasing investigations on the colossal permittivity (CP) materials. In this study, we designed a new system of Dy and Nb co-doped TiO2 ceramics [(Dy0.5Nb0.5)xTi1-xO2] with the formation of secondary phases, and then the enhancement of overall dielectric properties (epsilonr ~ 5.0-6.5 * 104 and tan delta < 8%) was realized in the broad composition range of 0.5 <= x <= 5%. More importantly, effects of secondary phases on microstructure, dielectric properties, and stability were explored from the views of defect-dipoles and internal barrier layer capacitance (IBLC) effect. According to the defect-dipoles theory, the CP should mainly originate from Nb5+, and the Dy3+ largely contributes to the decreased dielectric loss. Both CP and low dielectric loss were obtained for co-doping with Dy3+ and Nb5+. Besides, the Dy enrichment induced the formation of secondary phases, which were regarded as the low loss unit dispersed into the ceramic matrix, and largely facilitate the decreased dielectric loss. In particular, the analysis of temperature-dependent complex impedance spectra indicated that a stronger IBLC effect caused by the increased grain boundary resistance can also contribute to the optimized CP and low dielectric loss under appropriate contents of secondary phases. PMID- 29328632 TI - Probing Growth-Induced Anisotropic Thermal Transport in High-Quality CVD Diamond Membranes by Multifrequency and Multiple-Spot-Size Time-Domain Thermoreflectance. AB - The maximum output power of GaN-based high-electron mobility transistors is limited by high channel temperature induced by localized self-heating, which degrades device performance and reliability. Chemical vapor deposition (CVD) diamond is an attractive candidate to aid in the extraction of this heat and in minimizing the peak operating temperatures of high-power electronics. Owing to its inhomogeneous structure, the thermal conductivity of CVD diamond varies along the growth direction and can differ between the in-plane and out-of-plane directions, resulting in a complex three-dimensional (3D) distribution. Depending on the thickness of the diamond and size of the electronic device, this 3D distribution may impact the effectiveness of CVD diamond in device thermal management. In this work, time-domain thermoreflectance is used to measure the anisotropic thermal conductivity of an 11.8 MUm-thick high-quality CVD diamond membrane from its nucleation side. Starting with a spot-size diameter larger than the thickness of the membrane, measurements are made at various modulation frequencies from 1.2 to 11.6 MHz to tune the heat penetration depth and sample the variation in thermal conductivity. We then analyze the data by creating a model with the membrane divided into ten sublayers and assume isotropic thermal conductivity in each sublayer. From this, we observe a two-dimensional gradient of the depth-dependent thermal conductivity for this membrane. The local thermal conductivity goes beyond 1000 W/(m K) when the distance from the nucleation interface only reaches 3 MUm. Additionally, by measuring the same region with a smaller spot size at multiple frequencies, the in-plane and cross-plane thermal conductivities are extracted. Through this use of multiple spot sizes and modulation frequencies, the 3D anisotropic thermal conductivity of CVD diamond membrane is experimentally obtained by fitting the experimental data to a thermal model. This work provides an improved understanding of thermal conductivity inhomogeneity in high-quality CVD polycrystalline diamond that is important for applications in the thermal management of high-power electronics. PMID- 29328633 TI - Size-Induced Segregation in the Stepwise Microhydration of Hydantoin and Its Role in Proton-Induced Charge Transfer. AB - Recent photochemistry experiments provided evidence for the formation of hydantoin by irradiation of interstellar ice analogues. The significance of these results and the importance of hydantoin in prebiotic chemistry and polypeptide synthesis motivate the present theoretical investigation, in which we analyzed the effects of stepwise hydration on the electronic and thermodynamical properties of the structure of microhydrated hydantoin using a variety of computational approaches. We generally find microhydration to proceed around the hydantoin heterocycle until 5 water molecules are reached, at which stage hydration becomes segregated with a water cluster forming aside the heterocycle. The reactivity of microhydrated hydantoin caused by an impinging proton was evaluated through charge transfer collision cross sections for microhydrated compounds but also for hydantoin on icy grains modeled using a cluster approach mimicking the true hexagonal ice surface. The effects of hydration on charge transfer efficiency are mostly significant when few water molecules are present, and they progressively weaken and stabilize in larger clusters. On the ice substrate, charge transfer essentially contributes to a global increase in the cross sections. PMID- 29328634 TI - Exploring the Rich Potential Energy Surface of (H2O)11 and Its Physical Implications. AB - The rich potential energy surface of the water undecamer (H2O)11 was explored with a basin hopping algorithm using a TIP4P potential and other methods followed by extensive ab initio MP2 minimizations and CCSD(T) corrections. This protocol yielded 17, 66, and 125 distinct isomers within 0.5, 1.0, and 2.0 kcal mol-1 of the complete basis set CCSD(T) global minimum, respectively. These isomers were categorized into 15 different families based on their oxygen framework and hydrogen bonding topology. Determination of the global minimum proved challenging because of the presence of many nearly isoenergetic isomers. The predicted global minimum varied among ab initio methods, density functionals, and model potentials, and it was sensitive to the choice of energy extrapolation schemes, higher-order CCSD(T) corrections, and inclusion of zero-point vibrational energy. The presence of a large number of nearly degenerate structures and the isomerization between them has manifested itself in the anomalous broadening of the heat capacity curve of the undecamer in simulations around the melting region. PMID- 29328635 TI - Adsorption and Molecular Fractionation of Dissolved Organic Matter on Iron Bearing Mineral Matrices of Varying Crystallinity. AB - Iron (Fe)-bearing mineral phases contribute disproportionately to adsorption of soil organic matter (SOM) due to their elevated chemical reactivity and specific surface area (SSA). However, the spectrum of Fe solid-phase speciation present in oxidation-reduction-active soils challenges analysis of SOM-mineral interactions and may induce differential molecular fractionation of dissolved organic matter (DOM). This work used paired selective dissolution experiments and batch sorption of postextraction residues to (1) quantify the contributions of Fe-bearing minerals of varying crystallinity to DOM sorption, and (2) characterize molecular fractionation using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR-MS). A substantial proportion of soil SSA was derived from extracted Fe bearing phases, and FT-ICR-MS analysis of extracted DOM revealed distinct chemical signatures across Fe-OM associations. Sorbed carbon (C) was highly correlated with Fe concentrations, suggesting that Fe-bearing phases are strong drivers of sorption in these soils. Molecular fractionation was observed across treatments, particularly those dominated by short-range-order (SRO) mineral phases, which preferentially adsorbed aromatic and lignin-like formulas, and higher-crystallinity phases, associated with aliphatic DOM. These findings suggest Fe speciation-mediated complexation acts as a physicochemical filter of DOM moving through the critical zone, an important observation as predicted changes in precipitation may dynamically alter Fe crystallinity and C stability. PMID- 29328636 TI - Relapse of Takayasu arteritis as a cause of suicidal poisoning and subsequent major ischemic stroke successfully treated with thrombolytic therapy. AB - Introduction: Takayasu arteritis (TA) is a rare large vessel arteritis, affecting primarily aorta and its major branches. Its clinical manifestations can vary significantly - from asymptomatic to serious vascular events. Acute neurological complications are frequent at the onset of the disease and in relapses. Anxiety and depression are more frequent in TA patients than in general population as well as during relapses. Prevalence of transient ischemic attack or ischemic stroke in TA patients is approximately 10-20%. Case report: We presented a patient with TA that began with a depressive episode resulting in attempted suicide by bromazepame poisoning. This was subsequently followed by major ischemic stroke caused by thrombosis of the left middle cerebral artery (probably due to aortic arch embolism) successfully treated with intravenous thrombolysis. Conclusion: Intravenous thrombolysis appears to be safe and effective in patients with TA and stroke. PMID- 29328637 TI - Alp Rose stem cells, olive oil squalene and a natural alkyl polyglucoside emulsifier: Are they appropriate ingredients of skin moisturizers - in vivo efficacy on normal and sodium lauryl sulfate - irritated skin?. AB - Background/Aim: Since skin moisturization may be achieved by both actives and chosen carrier, plant stem cells, squalene and natural alkyl polyglucoside emulsifier may be potential components of contemporary cosmetic products. The aim of the study was in vivo evaluation of the skin irritation potential and the efficacy of Alpine Rose stem cells incorporated into li-posomes and olive oil squalene as ingredients of moisturizing creams, with respect to the novel emulsifier used for creams' stabilization. Methods: With the employment of noninvasive skin biophysical measurements, skin hydration (EC), transepi-dermal water loss (TEWL), erythema index (EI) and viscoelas-ticity were measured on 76 healthy volunteers. In the first phase, skin irritation after a 24-hour occlusion and the long-term efficacy of creams (a 21-day study) on healthy skin were evaluated. Phase II of the study focused on the cream efficacy assessment after a 6-day treatment of sodium lauryl sulfate-irritated skin. Results: After a 24-hour occlusion, there were no significant changes in the EI for any tested sample. In the second phase of the study, the EI was not significantly altered for the cream containing squalene, while the application of all active samples resulted in a significant reduction of TEWL. In both phases of the study an EC increase was recorded, espe-cially for the squalene-containing cream. Conclusion: Due to the lack of skin irritation and skin barrier impairment along with the marked hydration effect, it could be said that the in-vestigated actives incorporated into alkyl polyglucoside emulsi-fier-stabilized creams may be safely applied as ingredients for "tailor-made" cosmetic moisturizers intended for normal and dry skin care, whereas olive oil squalene could be used for the treatment of irritated or sensitive skin as well. [Projekat Ministarstva nauke Republike Srbije, br. TR34031] PMID- 29328638 TI - Cataract, ocular surgery, aphakia, and the chromatic expression of the painter Jovan Bijelic. AB - Background/Aim: Approaching art from the standpoint of optics and the artist's eye pathology can sometimes explain the shift of the spectral colors in the work of some artists with cataract and aphakia. This may not be obvious in the paintings of other artists with the same eye pathology. The aim of this study was to create a timeline from the recently obtained details of the cataract surgery, his best corrected aphakic visual acuity, and the last paintings of the artist Jovan Bijelic. Methods: The research included primary and secondary source material: Bijelic's paintings from all stages of his career, interviews with Bijelic and his eye surgeon, art criticism, sources with the description of Bijelic's symptoms, hospital archives, discussion with art historians, comparison of his palette from different periods. Results: Jovan Bijelic was nearly blind from cataract in 1957. He underwent an unsuccessful cataract surgery in 1956, followed by enucleation of the operated eye. In 1958, 20/25-20/20 vision was regained, after the extracapsular cataract extraction and sector iridectomy in his right eye, with the posterior lens capsule discision afterwards. Xanthopsia and cyanopsia are not present in his art, which is not a representation of visualized objects. Conclusion: The response of Jovan Bijelic to cataract and aphakia was predominantly a change of his style. PMID- 29328639 TI - The use of hyaluronic and aminocaproic acid in the treatment of alveolar osteitis. AB - Background/Aim: Alveolar osteitis (AO), also known as "dry socket", is relatively common post-extraction complication. It probably occurs due to excessive fibrinolytic activity in the coagulum and is characterized by intense pain sensations. The aim of this clinical study was to examine the role of hyaluronic acid and aminocaproic acid in the treatment of AO. Methods: The study included 60 patients with the clinical diagnosis of AO. All the patients were divided into two groups of 30 patients each according to the applied non-pharmacological measure: irrigation - irrigation of dry socket with sterile saline; curettage - careful curettage. Both of these groups were further divided into three subgroups regarding the applied treatment (hyaluronic acid; hyaluronic acid + aminocaproic acid; Alvogyl (r), an anesthetic and antiseptic paste), each with 10 patients, according to the following protocol: 0.2 mL of hyaluronic acid in the form of a 0.8% gel; 2 mL of aminocaproic acid and hyaluronic acid; Alvogyl(r). During each visit, scheduled for every two days until complete absence of painful sensations, the patients had the therapeutic method repeated as at the first examination. At each control visit the number of present symptoms and signs of AO was recorded, as well as the level of pain (measured with a visual analogue scale). Results: With the use of hyaluronic acid, with or without aminocaproic one, a statistically significantly faster reduction in pain sensations was achieved, along with the reduction in the number of symptoms and signs of AO compared to the use of Alvogyl(r). Conclusion: Hyaluronic acid, applied alone or in combination with aminocaproic acid significantly reduces pain sensation, thus it can be successfully used in the treatment of AO. PMID- 29328640 TI - Prevalence of metabolic syndrome in Montenegrin patients with psoriasis. AB - Background/Aim: Increasing epidemiological studies suggest the association between psoriasis and metabolic syndrome. The aim of this study was to assess the association of metabolic syndrome and its components with psoriasis in a sample of patients from Montenegro, and to predict the factors that determine the metabolic syndrome. Methods: A case-control study was conducted at the Clinic of Dermatology and Venereology, Clinical Center of Montenegro, Podgorica, Montenegro, between January and December 2012. The study group included 101 patients with psoriasis (cases) and 126 patients with the diagnosis of dermatological disease other than psoriasis (controls) consecutively admitted to the same clinic. Results: Metabolic syndrome was more prevalent in the psoriasis patients than in the controls (48.5% vs 20.6%; OR = 2.99). In addition, the psoriasis patients were significantly more likely to be smokers (OR = 2.16) and were less physically active (OR = 0.58). Conclusion: The results of this study demonstrate a strong association between psoriasis and metabolic syndrome independent of psoriasis severity. Patients with psoriasis should be routinely screened for metabolic syndrome and its components. [Projekat Ministarstva nauke Republike Srbije, br. 175025: Clinical-epidemiological research of diseases of public health importance in Serbia]. PMID- 29328641 TI - Correlation of local and systemic expression of survivin with histopathological parameters of cutaneous melanoma. AB - Background/Aim: Survivin is a multifunctional protein abundantly expressed in tumors of various types, including melanoma. There are still sparse data regarding relationship of melanoma cell survivin expression with accepted histopathological characteristics as well as serum concentration. The aim of this study was to investigate the association of local tumor survivin expression (primary tumor and metastatic lesions) and serum concentration with clinical and histopathological parameters in melanoma patients. Methods: The level of survivin expression was determined immunocytochemically in tumor tissue and with ELISA test in the serum of 84 melanoma patients diagnosed from 2009 to 2013 at the Institute for Pathology and Forensic Medicine and Institute for Medical Research at Military Medical Academy, Belgrade, Serbia. Results: The intensity of survivin expression was significantly higher in the patients whose tumor had ulceration, higher mitotic index, higher Clark and Breslow stage, that made vascular invasion or spread through lymphatic vessels in primary tumor, and was significantly higher in the patients with metastatic disease. Survivin expression and the number of survivin positive cells in metastatic lesions were significantly associated with the duration of disease free interval (DFI). The patients with high expression score had almost double shorter DFI comparing to those with weak local survivin expression and a small number of survivin+cells (9 +/- 7 vs 19 +/- 13 months, respectively). The degree of tumor infiltrating lymphocytes presence in tumor tissue was significantly associated with serum survivin concentration, with lowest average level detected in samples of patients with the highest degree of infiltration. Serum survivin concentrations were highest in samples of melanoma patients with IA American Joint Commission on Cancer (AJCC) clinical stage, pT1a histological stage, patients whose tumors were still in horizontal growth phase, without signs of lympho-hematological disease spreading, with the highest number of mitoses and the smallest Clark index. Conclusion: Survivin expression in tumor tissue and its serum concetration significantly correlate with clinical and histopathological parameters. Serum levels could be important in initial follow-up as indicators of those patients that would have aggressive local tumor growth and spreading. Survivin determination in tumor tissue is of great significance in estimation of DFI. PMID- 29328642 TI - The effects of industrial noise of higher spectrum on the workers' auditory perception abilities. AB - Background/Aim: Results of previous studies gave support to the idea that machines in power plants produce noise of different levels of loudness and frequency, and that it could cause deterioration of the hearing ability of workers. As a matter of fact, noiseinduced hearing loss is the most widespread occupational disease nowadays. As noise is a complex acoustic phenomenon, more factors have to be considered when studying it, such as frequency, intensity and the period of exposure. The aim of this study was to find if there are differences in the absolute threshold of hearing between workers in the factory production lines that are constantly exposed to the industrial noise of higher spectrum and those exposed to the noise of standard spectrum at different frequencies of sound. Methods: In the research plan, there were 308 workers employed in the production line of the Factory "Knjaz Milos", Arandelovac. A total of 205 of them were working in the conditions of higher spectrum noise (4,000 Hz - 8,000 Hz) and 103 workers were exposed to standard noise spectrum (31.5 Hz - 2,000.0 Hz). The objective measures of noise (frequency and amplitude) were acquired by phonometer, and measures of absolute threshold of hearing for both ears were obtained by audiometer by exposure to nine sound frequency levels. Data were statistically analyzed by establishing the significance of differences between absolute thresholds of hearing for both groups and for all nine frequency levels. Results: It was found that the absolute threshold of hearing is significantly higher for the group exposed to highfrequency noise at the 4,000 Hz and 8,000 Hz levels of frequency. Conclusion: Reduction of hearing sensitivity is evident for those exposed to higher spectrum noise, which is particularly evident at the higher frequency levels. Employees are often unaware of its effects because they are the results of prolonged exposure. Therefore, working in those conditions requires preventive measures and regular testing of the hearing ability. PMID- 29328643 TI - Disturbance of oxidative balance in the first trimester of spontaneous abortions. AB - Background/Aim: Pregnancy is defined as a condition of increased oxidative stress. The aim of this research was to determine the intensity of pro-oxidative processes and the content of GSH, as well as antioxidative enzymes: superoxide dismutase (SOD), catalase (CAT), gluthatione peroxidase (GSH-Px), and the total antioxidative status (TAS) in patients with spontaneous abortions. Methods: A total of 120 patients were involved in the research (70 spontaneous abortions and 50 healthy pregnancies). The patients were divided into groups: 35 patients with incomplete and complete spontaneous abortion (group S), 35 patients with missed abortion (group M) and a control group of 50 healthy pregnancies (group N), all of them being in the first trimester of pregnancy. The intensity of lipid proxidation (LPx) was determined with a modified thyobarbituric acid method. The GSH content in erythrocytes was determined by the method ba-sed on the amount of non-protein sulfhydryl residues using the Ellman's reagens. The following antioxidative parameters in the blood were measured: SOD - by the method with xanthine oxidase-using commercial RANSOD sets; CAT - by the method of Aebi (the enzyme activity was measured by monitoring the decomposition of H2O2 at 240 nm); GSH-Px was determined using hydrogen peroxide as a substrate. The TAS was determined using the ferric reducing autioxidant potential (FRAP) met-hod. Results: The highest average value of LPx was recorded in the spontaneous abortion group (48.03 pmoL/mg Hgb), and the lowest value was recorded in the control group (26.06 pmoL/mg Hgb). A statistically significant positive correlation between LPx and CAT in the group of patients with missed abortion was also noted (p < 0.05, r = 0.37). There was a statistically highly significant difference (p < 0.001) in SOD and in CAT activitices be-tween the examined patients (groups S and N) and the control group (Student's t-test and ANOVA). The highest average value of TAS was recorded in the group S (710.39 MUmol/L), while the value in the group M was 277.66 MUmol/L. The average value of TAS in the control group was 452.12 MUmol/L. Student's t-test showed a statistically highly significant difference in the values of TAS between the examined patients (groups S and M) and the control group. Conclusion: Determination of the value of pro oxidative and antioxidative parameters in patients with sponta-neous abortion can be the indicator of condition of fetoplacental unit and these analyses can be included in the protocol of the rutine perinatal diagnostics. PMID- 29328644 TI - Can probiotics improve efficiency and safety profile of triple Helicobacter pylori eradication therapy? A prospective randomized study. AB - Background/Aim: Some studies suggest the benefit of applying different probiotic strains in combination with antibiotics in the eradication of Helicobacter pylori (H. pylori) infection. The aim of this study was to evaluate the effect of co administration of multiple probiotic strains with triple H. pylori eradication therapy. : This prospective study included 167 patients with dyspeptic symptoms and chronic gastritis who were diagnosed with H. pylori infection and randomized into two groups. The group I of 77 patients underwent triple eradication therapy, for 7 days, with lansoprazole, 2 * 30 mg half an hour before the meal, amoxicillin 2 * 1.000 mg per 12 hours and clarithromycin 2 * 500 mg per 12 hours. After the 7th day of the therapy, lansoprazole continued at a dose of 30 mg for half an hour before breakfast for 4 weeks. The group II of 90 patients received the same treatment as the patients of the group I, with the addition of the probiotic cultures in the form of a capsule comprising Lactobacillus Rosell-52, Lactobacillus Rosell-11, Bifidobacterium Rosell-1755 and Saccharomyces boulardii, since the beginning of eradication for 4 weeks. Eradication of H. pylori infection control was performed 8 weeks after the therapy by rapid urease test and histopathologic evaluation of endoscopic biopsies or by stool antigen test for H. pylori. : Eradication of H. pylori infection was achieved in 93.3% of the patients who received probiotics with eradication therapy and in 81.8% of patients who were only on eradication therapy without probiotics. The difference in eradication success was statistically significant, (p < 0.05). The incidence of adverse effects of eradication therapy was higher in the group of patients who were not on probiotic (28.6%) than in the group that received probiotic (17.7%), but the difference was not statistically significant. : Multiple probiotic strains addition to triple eradication therapy of H. pylori achieves a significantly better eradication success, with fewer side effects of antibiotics. PMID- 29328645 TI - Assessing Intermolecular Interactions in Guest-Free Clathrate Hydrate Systems. AB - Recently, empty hydrate structures sI, sII, sH, and others have been proposed as low-density ice structures by both experimental observations and computer simulations. Some of them have been synthesized in the laboratory, which motivates further investigations on the stability of such guest-free clathrate structures. Using semiempirical and ab initio-based water models, as well as dispersion-corrected density functional theory approaches, we predict their stability, including cooperative many-body effects, in comparison with reference data from converged wave function-based DF-MP2 electronic structure calculations. We show that large basis sets and counterpoise corrections are required to improve convergence in the interaction/binding energies for such systems. Therefore, extrapolation schemes based on triple/quadruple and quadruple/quintuple zeta quality basis sets are used to reach high accuracy. Eleven different water structures corresponding to dodecahedron, edge sharing, face sharing, and fused cubes, as a part of the WATER27 database, as well as cavities from the sI, sII, and sH clathrate hydrates formed by 20, 24, 28, and 36 water molecules, are employed, and new benchmark energies are reported. Using these benchmark sets of interaction energies, we assess the performance of both analytical models and direct DFT calculations for such clathrate-like systems. In particular, seven popular water models (TIP4P/ice, TIP4P/2005, q-TIP4P/F, TTM2-F, TTM3-F, TTM4-F, and MB-pol) available in the literature, and nine density functional approximations (3 meta-GGAs, 3 hybrids, and 3 range separated functionals) are used to investigate their accuracy. By including dispersion corrections, our results show that errors in the interaction energies are reduced for most of the DFT functionals. Despite the difficulties faced by current water models and DFT functionals to accurately describe the interactions in such water systems, we found some general trends that could serve to extend their applicability to larger systems. PMID- 29328646 TI - Vibrational Properties of Bulk Boric Acid 2A and 3T Polymorphs and Their Two Dimensional Layers: Measurements and Density Functional Theory Calculations. AB - Boric acid (H3BO3) is being used effectively nowadays in traps/baits for the management of Aedes aegypti L. and Aedes albopictus Skuse species of mosquitoes, which are the main spreading vectors worldwide for diseases such as malaria, dengue, and zika. Previously, we published results on the structural, electronic, and optical properties of its molecular triclinic H3BO3-2A and trigonal H3BO3-3T polymorphs within the framework of density functional theory (DFT). Because of the renewed importance of these materials, the focus of this work is on the vibrational properties of the bulk boric acid 2A and 3T polymorphs. We measured the infrared and Raman spectra of the former, which was accompanied and interpreted through state-of-the-art DFT calculations, supplemented by computations regarding the H3BO3 molecule and two-dimensional layers based on the bulk structures. We identify/assign their normal modes and find vibrational signatures for each polymorph as well as in- and out-of-plane motions and molecular vibrations, unveiling a nice agreement between the DFT level of theory employed and our improved spectroscopic measurements in the wavenumber ranges of 400-2000 cm-1 (infrared) and 0-1500 cm-1 (Raman). We show that a dispersion corrected DFT functional within the generalized gradient approximation (GGA) can be very accurate in describing the vibrational properties of the boric acid polymorphs. Besides, several issues left open/not clearly resolved in previously published works on the vibrational mode assignments of the bulk and 2D sheets of boric acid are explained satisfactorily. Finally, phonon dispersions and associated densities of states were also evaluated for each polymorph along with their temperature-dependent DFT-calculated entropy, enthalpy, free energy, heat capacity, and Debye temperature. In particular, our DFT calculations suggest a possible way to differentiate the 2A and 3T boric acid polymorphs through Raman spectroscopy and heat capacity measurements. PMID- 29328647 TI - Development of Yam Dioscorin-Loaded Nanoparticles for Paracellular Transport Across Human Intestinal Caco-2 Cell Monolayers. AB - Dioscorins, the major storage proteins of yam tubers, exert immunomodulatory activities. To improve oral bioavailability of dioscorins in the intestine, recombinant dioscorin (rDioscorin) was coated with N,N,N-trimethyl chitosan (TMC) and tripolyphosphate (TPP), resulting in the formation of TMC-rDio-TPP nanoparticles (NPs). The loading capacity and entrapment efficiency of rDioscorin in the NPs were 26 +/- 0.7% and 61 +/- 1.4%, respectively. The NPs demonstrated a substantial release profile in the pH environment of the jejunum. The rDioscorin released from the NPs stimulated proliferation and phagocytosis of the macrophage RAW264.7 and activated the gene expression of IL-1beta and IL-6. Incubation of the NPs in the Caco-2 cell monolayer led to a 5.2-fold increase of Papp compared with rDioscorin alone, suggesting that rDioscorin, with the assistance of TMC, can be promptly transported across the intestinal epithelia. These results demonstrate that the TMC-rDio-TPP NPs can be utilized for elucidating the immunopharmacological effects of dioscorins through oral delivery. PMID- 29328648 TI - Two-Step Synthesis and Surface Modification of CaZnOS:Mn2+ Phosphors and the Fabrication of a Luminescent Poly(dimethylsiloxane) Film. AB - The CaZnOS:Mn2+ (CZOSM) phosphor has been extensively studied for its excellent optical performance, with a typical red emission band peaking at about 580 nm ascribed to the 4T1(4G)-6A1(6S) transition of Mn2+. Herein the CZOSM phosphor was synthesized by a novel two-step method accompanied by control of the morphology of the precursor in the first step followed by sintering in the second step, which demonstrated improved emission intensity and uniform morphology simultaneously compared to those obtained by the traditional solid-state reaction route. Thus, uniform ZnS:Mn2+ particles could be obtained by a hydrothermal method, and then a Ca(OH)2 shell was coated onto the ZnS:Mn2+ particles via a precipitation reaction. After that, these mixtures were sintered at the optimum temperature 800 degrees C in an argon atmosphere to prepare the CZOSM particles. Oleic acid (OA) was further used to transfer the hydrophilic CZOSM phosphors to hydrophobic ones. Finally, luminescent poly(dimethylsiloxane) (PDMS) films were fabricated by using the hydrophobic CZOSM@OA powders, and their optical performance and flexibility were evaluated. Our results provide insight into the synthesis of hydrophobic phosphor particles used in luminescent PDMS films and help to unravel their potential application for flexible optical devices. PMID- 29328649 TI - Phenylthiomethyl Ketone-Based Fragments Show Selective and Irreversible Inhibition of Enteroviral 3C Proteases. AB - Lead structure discovery mainly focuses on the identification of noncovalently binding ligands. Covalent linkage, however, is an essential binding mechanism for a multitude of successfully marketed drugs, although discovered by serendipity in most cases. We present a concept for the design of fragments covalently binding to proteases. Covalent linkage enables fragment binding unrelated to affinity to shallow protein binding sites and at the same time allows differentiated targeted hit verification and binding location verification through mass spectrometry. We describe a systematic and rational computational approach for the identification of covalently binding fragments from compound collections inhibiting enteroviral 3C protease, a target with high therapeutic potential. By implementing reactive groups potentially forming covalent bonds as a chemical feature in our 3D pharmacophore methodology, covalent binders were discovered by high-throughput virtual screening. We present careful experimental validation of the virtual hits using enzymatic assays and mass spectrometry unraveling a novel, previously unknown irreversible inhibition of the 3C protease by phenylthiomethyl ketone based fragments. Subsequent synthetic optimization through fragment growing and reactivity analysis against catalytic and noncatalytic cysteines revealed specific irreversible 3C protease inhibition. PMID- 29328650 TI - Evidence for Indirect Action of Ionizing Radiation in 18-Crown-6 Complexes with Halogenous Salts of Strontium: Simulation of Radiation-Induced Transformations in Ionic Liquid/Crown Ether Compositions. AB - Ionic liquid/crown ether compositions are an attractive alternative to traditional extractants in the processes for spent nuclear fuel and liquid radioactive wastes reprocessing. These compositions are exposed to ionizing radiation, and their radiation stability, especially in the presence of metal salts, is a crucial issue. In the present study, the macrocyclic 18C6.Sr(BF4)2 and 18C6.Sr(PF6)2 complexes simulating the components of metal loaded ionic liquid/crown ether extractants were synthesized and their structures were characterized by FTIR spectroscopy and single-crystal X-ray diffraction analysis. Inclusion of Sr2+ cation into the 18C6 cavity resulted in more symmetric D3d conformations of the macrocycle. The structural transformations of the crown ether were accompanied by an elongation of polyether C-O bonds that could increase the possibility of radiolytic cleavage of the macrocycle. However, EPR study of the synthesized compounds subjected to X-ray irradiation revealed predominant formation of macrocyclic -CH2-CH-O- radicals. This result demonstrated an evidence for indirect action of ionizing radiation on individual components of the complexes and was reasonably described by a positive "hole" transfer from primary macrocyclic radical cation to fluorous anion at the primary stages of radiolysis and a subsequent interaction of fluorine atom with 18C6 macrocycle in secondary radical reactions. The observed effects may be partially responsible for enhanced sensitivity of the ionic liquid/crown ether extractants to ionizing radiation due to chemical blocking of the crown ether with radiolytic HF, radiation-chemical degradation of the 18C6, and precipitation of a low soluble SrF2. PMID- 29328652 TI - Trade-Induced Atmospheric Mercury Deposition over China and Implications for Demand-Side Controls. AB - Mercury (Hg) is of global concern because of its adverse effects on humans and the environment. In addition to long-range atmospheric transport, Hg emissions can be geographically relocated through economic trade. Here, we investigate the effect of China's interregional trade on atmospheric Hg deposition over China, using an atmospheric transport model and multiregional input-output analysis. In general, total atmospheric Hg deposition over China is 408.8 Mg yr-1, and 32% of this is embodied in China's interregional trade, with the hotspots occurring over Gansu, Henan, Hebei, and Yunnan provinces. Interprovincial trade considerably redistributes atmospheric Hg deposition over China, with a range in deposition flux from -104% to +28%. Developed regions, such as the Yangtze River Delta (Shanghai, Jiangsu, and Zhejiang) and Guangdong, avoid Hg deposition over their geographical boundaries, instead causing additional Hg deposition over developing provinces. Bilateral interaction among provinces is strong over some regions, suggesting a need for joint mitigation, such as the Jing-Jin-Ji region (Beijing, Tianjin, and Hebei) and the Yangtze River Delta. Transferring advanced technology from developed regions to their developing trade partners would be an effective measure to mitigate China's Hg pollution. Our findings are relevant to interprovincial efforts to reduce trans-boundary Hg pollution in China. PMID- 29328651 TI - Enzymatic Cleavage of Branched Peptides for Targeting Mitochondria. AB - Most of the reported mitochondria-targeting molecules are lipophilic and cationic, and thus they may become cytotoxic with accumulation. Here we show enzymatic cleavage of branched peptides that carry negative charges for targeting mitochondria. Conjugating a well-established protein tag (i.e., FLAG-tag) to self assembling motifs affords the precursors that form micelles. Enzymatic cleavage of the hydrophilic FLAG motif (DDDDK) by enterokinase (ENTK) turns the micelles to nanofibers. After being taken up by cells, the micelles, upon the action of intracellular ENTK, turn into nanofibers to locate mainly at mitochondria. The micelles of the precursors are able to deliver cargos (either small molecules or proteins) into cells, largely to mitochondria and within 2 h. Preventing ENTK proteolysis diminishes mitochondria targeting. As the first report of using enzymatic self-assembly for targeting mitochondria and delivery cargos to mitochondria, this work illustrates a fundamentally new way to target subcellular organelles for biomedicine. PMID- 29328654 TI - Country-Level Life Cycle Assessment of Greenhouse Gas Emissions from Liquefied Natural Gas Trade for Electricity Generation. AB - In the determination of the net impact of liquefied natural gas (LNG) on greenhouse gas emissions, life cycle assessments (LCA) of electricity generation have yet to combine the effects of transport distances between exporting and importing countries, country-level infrastructure in importing countries, and the fuel sources displaced in importing countries. To address this, we conduct a LCA of electricity generated from LNG export from British Columbia, Canada with a three-step approach: (1) a review of viable electricity generation markets for LNG, (2) the development of results for greenhouse gas emissions that account for transport to importing nations as well as the infrastructure required for power generation and delivery, and (3) emissions displacement scenarios to test assumptions about what electricity is being displaced in the importing nation. Results show that while the ultimate magnitude of the greenhouse gas emissions associated with natural gas production systems is still unknown, life cycle greenhouse gas emissions depend on country-level infrastructure (specifically, the efficiency of the generation fleet, transmission and distribution losses and LNG ocean transport distances) as well as the assumptions on what is displaced in the domestic electricity generation mix. Exogenous events such as the Fukushima nuclear disaster have unanticipated effects on the emissions displacement results. We highlight national regulations, environmental policies, and multilateral agreements that could play a role in mitigating emissions. PMID- 29328653 TI - Extending Half Life of H-Ferritin Nanoparticle by Fusing Albumin Binding Domain for Doxorubicin Encapsulation. AB - Nanoparticles based on the heavy chain of the human ferritin (HFn) are arousing growing interest in the field of drug delivery due to their exceptional characteristics. However, the unsatisfied plasma half life of HFn substantially limits its application as a delivery platform for antitumor agents. Herein we fused an albumin binding domain (ABD) variant that basically derives from the streptococcal protein G and possesses a long-acting characteristic in serum albumin to the N-terminus of the HFn for the aim of half-life extension. This ABD HFn construct was highly expressed and fully self-assembled into symmetrical and spherical structure in E. coli bacteria. The purified ABD-HFn showed a similar particle size with wild-type HFn and also exhibited an extremely high binding affinity with human serum albumin. To evaluate the therapeutic potential of this ABD-HFn construct in terms of half-life extension, we encapsulated a model antitumor agent doxorubicin (DOX) into the ABD-HFn. Significantly outstanding loading efficacy of above 60 molecules doxorubicin for each ABD-HFn cage was achieved. The doxorubicin-loaded ABD-HFn nanoparticle was characterized and further compared with the recombinant HFn counterpart. The ABD-HFn/DOX nanoparticle showed dramatically improved stability and comparable cell uptake rate when compared with HFn/DOX counterpart. Pharmacokinetics study in Sprague Dawley rats showed that ABD-HFn/DOX nanoparticle possessed significantly prolonged plasma half life of ~17.2 h, exhibiting nearly 19 times longer than that of free doxorubicin and 12 times for HFn/DOX. These optimal results indicated that fusion with ABD will be a promising strategy to extend the half life for protein-based nanoparticles. PMID- 29328656 TI - Design and Synthesis of Novel Reactive Oxygen Species Inducers for the Treatment of Pancreatic Ductal Adenocarcinoma. AB - Altering redox homeostasis provides distinctive therapeutic opportunities for the treatment of pancreatic cancer. Quinazolinediones (QDs) are novel redox modulators that we previously showed to induce potent growth inhibition in pancreatic ductal adenocarcinoma (PDAC) cell lines. Our lead optimization campaign yielded QD325 as the most potent redox modulator candidate inducing substantial reactive oxygen species (ROS) in PDAC cells. Nascent RNA sequencing following treatments with the QD compounds revealed induction of stress responses in nucleus, endoplasmic reticulum, and mitochondria of pancreatic cancer cells. Furthermore, the QD compounds induced Nrf2-mediated oxidative stress and unfolded protein responses as demonstrated by dose-dependent increases in RNA synthesis of representative genes such as NQO1, HMOX1, DDIT3, and HSPA5. At higher concentrations, the QDs blocked mitochondrial function by inhibiting mtDNA transcription and downregulating the mtDNA-encoded OXPHOS enzymes. Importantly, treatments with QD325 were well tolerated in vivo and significantly delayed tumor growth in mice. Our study supports the development of QD325 as a new therapeutic in the treatment of PDAC. PMID- 29328655 TI - Identification of Novel Coumestan Derivatives as Polyketide Synthase 13 Inhibitors against Mycobacterium tuberculosis. AB - Inhibition of the mycolic acid pathway has proven a viable strategy in antitubercular drug discovery. The AccA3/AccD4/FadD32/Pks13 complex of Mycobacterium tuberculosis constitutes an essential biosynthetic mechanism for mycolic acids. Small molecules targeting the thioesterase domain of Pks13 have been reported, including a benzofuran-based compound whose X-ray cocrystal structure has been very recently solved. Its initial inactivity in a serum inhibition titration (SIT) assay led us to further probe other structurally related benzofurans with the aim to improve their potency and bioavailability. Herein, we report our preliminary structure-activity relationship studies around this scaffold, highlighting a natural product-inspired cyclization strategy to form coumestans that are shown to be active in SIT. Whole genome deep sequencing of the coumestan-resistant mutants confirmed a single nucleotide polymorphism in the pks13 gene responsible for the resistance phenotype, demonstrating the druggability of this target for the development of new antitubercular agents. PMID- 29328657 TI - Molecular Mechanism of Protein Unfolding under Shear: A Lattice Boltzmann Molecular Dynamics Study. AB - Proteins are marginally stable soft-matter entities that can be disrupted using a variety of perturbative stresses, including thermal, chemical, or mechanical ones. Fluid under extreme flow conditions is a possible route to probe the weakness of biomolecules and collect information on the molecular cohesive interactions that secure their stability. Moreover, in many cases, physiological flow triggers the functional response of specialized proteins as occurring in blood coagulation or cell adhesion. We deploy the Lattice Boltzmann molecular dynamics technique based on the coarse-grained model for protein OPEP to study the mechanism of protein unfolding under Couette flow. Our simulations provide a clear view of how structural elements of the proteins are affected by shear, and for the simple study case, the beta-hairpin, we exploited the analogy to pulling experiments to quantify the mechanical forces acting on the protein under shear. PMID- 29328658 TI - Modeling Net Land Occupation of Hydropower Reservoirs in Norway for Use in Life Cycle Assessment. AB - Increasing hydropower electricity production constitutes a unique opportunity to mitigate climate change impacts. However, hydropower electricity production also impacts aquatic and terrestrial biodiversity through freshwater habitat alteration, water quality degradation, and land use and land use change (LULUC). Today, no operational model exists that covers any of these cause-effect pathways within life cycle assessment (LCA). This paper contributes to the assessment of LULUC impacts of hydropower electricity production in Norway in LCA. We quantified the inundated land area associated with 107 hydropower reservoirs with remote sensing data and related it to yearly electricity production. Therewith, we calculated an average net land occupation of 0.027 m2.yr/kWh of Norwegian storage hydropower plants for the life cycle inventory. Further, we calculated an adjusted average land occupation of 0.007 m2.yr/kWh, accounting for an underestimation of water area in the performed maximum likelihood classification. The calculated land occupation values are the basis to support the development of methods for assessing the land occupation impacts of hydropower on biodiversity in LCA at a damage level. PMID- 29328659 TI - Syntheses of (-)-Tripterifordin and (-)-Neotripterifordin from Stevioside. AB - We report short syntheses of (-)-tripterifordin and (-)-neotripterifordin, potent inhibitors of HIV replication, from stevioside, a natural sweetener used worldwide. The key transformations are reduction at C13 through the formation of a tertiary chloride and subsequent three-step lactonization including a selective iodination at C20 by the photoreaction of the C19-alcohol. The title compounds were reliably obtained from stevioside in 9 and 11 steps (with 5-7 isolation steps), respectively. Additionally, the related lactone-containing ent-kaurenes, doianoterpenes A and B, and two more natural products were synthesized. PMID- 29328660 TI - X-ray Structures of Target-Ligand Complexes Containing Compounds with Assay Interference Potential. AB - Pan assay interference compounds (PAINS) have become a paradigm for compound classes that might cause artifacts in biological assays. PAINS-defining substructures are typically contained in larger compounds. We have systematically examined X-ray structures of protein-ligand complexes for compounds containing PAINS motifs. In 2874 X-ray structures, 1107 unique ligands with PAINS substructures belonging to 70 different classes were identified. PAINS most frequently detected in crystallographic ligands included a number of prominent candidates such as quinones, catechols, or Mannich bases. However, on the basis of X-ray data, the presence of specific ligand-target interactions and reactivity under assay conditions were not mutually exclusive. In some instances, reactivity of ligands was likely responsible for complex formation. Different categories of PAINS-containing ligands were distinguished, which aided in the interpretation of specific interactions versus potential assay artifacts. Careful consideration of structural data adds another dimension to the analysis of interference compounds. PMID- 29328661 TI - Investigation of Drug-Excipient Interactions in Biclotymol Amorphous Solid Dispersions. AB - The effect of low molecular weight excipients on drug-excipient interactions, molecular mobility, and propensity to recrystallization of an amorphous active pharmaceutical ingredient is investigated. Two structurally related excipients (alpha-pentaacetylglucose and beta-pentaacetylglucose), five different drug:excipient ratios (1:5, 1:2, 1:1, 2:1, and 5:1, w/w), and three different solid state characterization tools (differential scanning calorimetry, X-ray powder diffraction, and dielectric relaxation spectroscopy) were selected for the present research. Our investigation has shown that the excipient concentration and its molecular structure reveal quasi-identical molecular dynamic behavior of solid dispersions above and below the glass transition temperature. Across to complementary quantum mechanical simulations, we point out a clear indication of a strong interaction between biclotymol and the acetylated saccharides. Moreover, the thermodynamic study on these amorphous solid dispersions highlighted a stabilizing effect of alpha-pentaacetylglucose regardless of its quantity while an excessive concentration of beta-pentaacetylglucose revealed a poor crystallization inhibition. Finally, through long-term stability studies, we also showed the limiting excipient concentration needed to stabilize our amorphous API. Herewith, the developed procedure in this paper appears to be a promising tool for solid-state characterization of complex pharmaceutical formulations. PMID- 29328662 TI - Spin-Orbit Torques in NbSe2/Permalloy Bilayers. AB - We present measurements of current-induced spin-orbit torques generated by NbSe2, a fully metallic transition-metal dichalcogenide material, made using the spin torque ferromagnetic resonance (ST-FMR) technique with NbSe2/Permalloy bilayers. In addition to the out-of-plane Oersted torque expected from current flow in the metallic NbSe2 layer, we also observe an in-plane antidamping torque with torque conductivity sigmaS ~ 103 (h/2e)(Omegam)-1 and indications of a weak field-like contribution to the out-of-plane torque oriented opposite to the Oersted torque. Furthermore, in some samples we also measure an in-plane field-like torque with the form m * z, where m is the Permalloy magnetization direction and z is perpendicular to the sample plane. The size of this component varies strongly between samples and is not correlated with the NbSe2 thickness. A torque of this form is not allowed by the bulk symmetries of NbSe2 but is consistent with symmetry breaking by a uniaxial strain that might result during device fabrication. PMID- 29328664 TI - Aconicarmisulfonine A, a Sulfonated C20-Diterpenoid Alkaloid from the Lateral Roots of Aconitum carmichaelii. AB - A novel sulfonated C20-diterpenoid alkaloid with an unprecedented carbon skeleton and significant analgesic activity (46.7% inhibition at 0.1 mg/kg, i.p.), named aconicarmisulfonine A (1), was isolated from an aqueous extract of the lateral roots of Aconitum carmichaelii. Its structure was determined by comprehensive analysis of spectroscopic data, especially by 2D NMR spectroscopic data combined with ECD calculation and single-crystal X-ray diffraction. The plausible biosynthetic pathways of compound 1 are also discussed. PMID- 29328665 TI - Coalescence Dynamics of Mobile and Immobile Fluid Interfaces. AB - Coalescence dynamics between deformable bubbles and droplets can be dramatically affected by the mobility of the interfaces with fully tangentially mobile bubble liquid or droplet-liquid interfaces expected to accelerate the coalescence by orders of magnitude. However, there is a lack of systematic experimental investigations that quantify this effect. By using high speed camera imaging we examine the free rise and coalescence of small air-bubbles (100 to 1300 MUm in diameter) with a liquid interface. A perfluorocarbon liquid, PP11, is used as a model liquid to investigate coalescence dynamics between fully mobile and immobile deformable interfaces. The mobility of the bubble surface was determined by measuring the terminal rise velocity of small bubbles rising at Reynolds numbers, Re, less than 0.1 and the mobility of free PP11 surface by measuring the deceleration kinetics of the small bubble toward the interface. Induction or film drainage times of a bubble at the mobile PP11-air surface were found to be more than 2 orders of magnitude shorter compared to the case of bubble and an immobile PP11-water interface. A theoretical model is used to illustrate the effect of hydrodynamics and interfacial mobility on the induction time or film drainage time. The results of this study are expected to stimulate the development of a comprehensive theoretical model for coalescence dynamics between two fully or partially mobile fluid interfaces. PMID- 29328663 TI - Decarboxylative Annulation of alpha-Amino Acids with beta-Ketoaldehydes. AB - Indolizidine and quinolizidine derivatives are readily assembled from l-proline or (+/-)-pipecolic acid and beta-ketoaldehydes via a decarboxylative annulation process. These reactions are promoted by acetic acid and involve azomethine ylides as reactive intermediates. PMID- 29328666 TI - Directing Group Participated Benzylic C(sp3)-H/C(sp2)-H Cross-Dehydrogenative Coupling (CDC): Synthesis of Azapolycycles. AB - An efficient method to construct azapolycycles via directing group participated benzylic C(sp3)-H/C(sp2)-H cross-dehydrogenative coupling reactions is described. The reaction proceeded through a palladium catalyzed C(sp3)-H activation followed by coupling with a C(sp2)-H bond of quinoline to afford the azapolycyclic compounds. The reaction works with a broad substrate scope affording the products in moderate to good yields with excellent diastereoselectivities. Control experiments further supported the proposed mechanism. PMID- 29328667 TI - Enhancing Reactivity and Site-Selectivity in Hydrogen Atom Transfer from Amino Acid C-H Bonds via Deprotonation. AB - A kinetic study on the reactions of the cumyloxyl radical (CumO*) with N-Boc protected amino acids in the presence of the strong organic base DBU has been carried out. CO2H deprotonation increases the electron density at the alpha-C-H bonds activating these bonds toward HAT to the electrophilic CumO* strongly influencing the intramolecular selectivity. The implications of these results are discussed in the framework of HAT-based aliphatic C-H bond functionalization of amino acids and peptides. PMID- 29328668 TI - Bis(dinitrogen)cobalt(-1) Complexes with NHC Ligation: Synthesis, Characterization, and Their Dinitrogen Functionalization Reactions Affording Side on Bound Diazene Complexes. AB - Late-transition-metal-based catalysts are widely used in N2 fixation reactions, but the reactivity of late-transition-metal N2 complexes, besides iron N2 complexes, has remained poorly understood as their N2 complexes were thought to be labile and hard to functionalize. By employing a monodentate N-heterocyclic carbene (NHC), 1,3-dicyclohexylimidazol-2-ylidene (ICy) as ligand, the cobalt(0)- and cobalt(-1)-N2 complexes, [(ICy)3Co(N2)] (1) and [(ICy)2Co(N2)2M]n (M = K, 2a; Rb, 2b; Cs, 2c), respectively, were synthesized from the stepwise reduction of (ICy)3CoCl by the corresponding alkaline metals under a N2 atmosphere. Complexes 2a-c in their solid states adopt polymeric structures. The N-N distances (1.145(6)-1.162(5) A) and small N-N infrared stretchings (ca. 1800 and 1900 cm-1) suggest the strong N2 activation of the end-on N2 ligands in 2a-c. One electron oxidation of 1 by [Cp2Fe][BF4] gave the cobalt(I) complex devoid of N2 ligand [(ICy)3Co][BF4] (3). The bis(dinitrogen)cobalt(-1) complexes 2a-c undergo protonation reaction with triflic acid to give N2H4 in 24-30% yields (relative to cobalt). Complexes 2a-c could also react with silyl halides to afford diazene complexes [(ICy)2Co(eta2-R3SiNNSiR3)] (R = Me, 6a; Et, 6b) that are the first diazene complexes of late transition metals prepared from N2 functionalization. Characterization data, in combination with calculation results, suggest the electronic structures of the diazene complexes as low-spin cobalt(II) complexes containing dianionic ligand [eta2-R3SiNNSiR3]2-. Complexes 1, 2a-c, 6a, 6b, and (ICy)2CoCl2 proved to be effective catalysts for the reductive silylation of N2 to afford N(SiMe3)3. These NHC-cobalt catalysts display comparable turnover numbers (ca. 120) that exceed the reported 3d metal catalysts. The fine performance of the NHC-cobalt complexes in the stoichiometric and catalytic N2 functionalization reactions points out the utility of low-valent low-coordinate group 9 metal species for N2 fixation. PMID- 29328669 TI - Urinary Methyleugenol-deoxyadenosine Adduct as a Potential Biomarker of Methyleugenol Exposure in Rats. AB - Methyleugenol (ME), a natural ingredient of several herbs and spices used in the human diet, is hepatocarcinogenic in rodents. Following metabolic activation to the reactive carbocation intermediate, ME can bind covalently to DNA, which is directly associated with its carcinogenicity. In this work, a non-invasive approach to determine ME exposure was established by monitoring the urinary N6 (methylisoeugenol-3'-yl)-2'-deoxyadenosine (ME-dA) adduct. The developed method entails liquid-liquid extraction enrichment of urinary ME-dA, incorporation of deuterated ME-dA as an internal standard, and analysis by liquid chromatography coupled tandem mass spectrometry. Male rats (10-12 weeks, 180-200 g) were treated (p.o.) with ME, and ME-dA was excreted in urine in a dose- and time-dependent manner. The non-invasive approach enabled us to successfully determine exposure to ME-containing herbs and spices. These results suggest that ME-dA can potentially serve as an effective biomarker of ME exposure in rats. It is expected that the developed approach of detecting urinary ME-dA will facilitate the investigation of ME carcinogenesis. PMID- 29328670 TI - Surface Oxidation of Graphene Oxide Determines Membrane Damage, Lipid Peroxidation, and Cytotoxicity in Macrophages in a Pulmonary Toxicity Model. AB - While two-dimensional graphene oxide (GO) is used increasingly in biomedical applications, there is uncertainty on how specific physicochemical properties relate to biocompatibility in mammalian systems. Although properties such as lateral size and the colloidal properties of the nanosheets are important, the specific material properties that we address here is the oxidation state and reactive surface groups on the planar surface. In this study, we used a GO library, comprising pristine, reduced (rGO), and hydrated GO (hGO), in which quantitative assessment of the hydroxyl, carboxyl, epoxy, and carbon radical contents was used to study the impact on epithelial cells and macrophages, as well as in the murine lung. Strikingly, we observed that hGO, which exhibits the highest carbon radical density, was responsible for the generation of cell death in THP-1 and BEAS-2B cells as a consequence of lipid peroxidation of the surface membrane, membrane lysis, and cell death. In contrast, pristine GO had lesser effects, while rGO showed extensive cellular uptake with minimal effects on viability. In order to see how these in vitro effects relate to adverse outcomes in the lung, mice were exposed to GOs by oropharyngeal aspiration. Animal sacrifice after 40 h demonstrated that hGO was more prone than other materials to generate acute lung inflammation, accompanied by the highest lipid peroxidation in alveolar macrophages, cytokine production (LIX, MCP-1), and LDH release in bronchoalveolar lavage fluid. Pristine GO showed less toxicity, whereas rGO had minimal effects. We demonstrate that the surface oxidation state and carbon radical content play major roles in the induction of toxicity by GO in mammalian cells and the lung. PMID- 29328671 TI - Dimethylcalcium. AB - The salt metathesis reaction between homoleptic calcium bis(trimethylsilyl)amide [Ca{N(SiMe3)2}2]2 and "halide-free" methyllithium allowed for the isolation of X ray-amorphous dimethylcalcium [CaMe2]n in good yields and purities. The formation of [CaMe2]n was proven by microanalysis and NMR/FTIR spectroscopic methods as well as a series of derivatization reactions. Despite slowly decomposing thf, [CaMe2]n could be crystallized from chilled thf solutions as the heptametallic adduct [(thf)10Ca7Me14]. Reaction of [CaMe2]n with CaI2 in thf led to the dimeric complex [(thf)3Ca(Me)(I)]2, whereas in tetrahydropyran (thp) the trinuclear complex [(thp)5Ca3(Me)5(I)] was obtained, both representing the first crystallographically characterized heavy-Grignard compounds with methyl groups as the hydrocarbyl ligand. While protonolysis of [CaMe2]n with the superbulky proligand HTptBu,Me in nonpolar solvents gave homoleptic (TptBu,Me)2Ca, reaction in donor solvents (thf, thp) afforded the monomeric complexes [(TptBu,Me)Ca(Me)(thf)] and [(TptBu,Me)Ca(Me)(thp)], which are the first examples bearing terminal Ca-CH3 functionalities. Grignard-type nucleophilic methyl-group transfer to hexamethylacetone gave access to the dimeric alkoxide complexes [(thf)Ca(OCtBu2Me)2]2 and [(tBu2CO)Ca(MU2-OCtBu2Me)3Ca(OCtBu2Me)]. Finally, addition of the Lewis acid GaMe3 to [CaMe2]n led to the corresponding tetramethylgallate compound [Ca(GaMe4)2]n. PMID- 29328672 TI - Three-Dimensional Printing Hollow Polymer Template-Mediated Graphene Lattices with Tailorable Architectures and Multifunctional Properties. AB - It is a significant challenge to concurrently achieve scalable fabrication of graphene aerogels with three-dimensional (3D) tailorable architectures (e.g., lattice structure) and controllable manipulation of microstructures on the multiscale. Herein, we highlight 3D graphene lattices (GLs) with complex engineering architectures that were delicately designed and manufactured via 3D stereolithography printed hollow polymer template-mediated hydrothermal process coupled with freeze-drying strategies. The resulting GLs with overhang beams and columns show a 3D geometric configuration with hollow-carved features at the macroscale, while the construction elements of graphene cellular on the microscale exhibit a well-ordered and honeycomb-like microstructure with high porosity. These GLs demonstrate multifunctional properties with robust structure, high electrical conductivity, low thermal conductivity, and superior absorption capacitance of organic solvents. Moreover, the GLs were utilized as a subtle sensor for the fast detection of chemical agents. Aforementioned superior properties of GLs confirm that the combination of 3D tailorable manipulation and self-organization design of structures on the multiscale is an effective strategy for the scalable fabrication of advanced multifunctional graphene monoliths, suggesting their promising applications as chemical detection sensors, environmental remediation absorbers, conductive electrodes, and engineering metamaterials. PMID- 29328673 TI - Fluorescent Proteins Detect Host Structural Rearrangements via Electrostatic Mechanism. AB - The rational design of genetically encoded fluorescent biosensors, which can detect rearrangements of target proteins via interdomain allostery, is hindered by the absence of mechanistic understanding of the underlying photophysics. Here, we focus on the modulation of fluorescence by mechanical perturbation in a popular biological probe: enhanced Green Fluorescent Protein (eGFP). Using a combination of molecular dynamics (MD) simulations and quantum chemistry, and a set of physically motivated assumptions, we construct a map of fluorescence quantum yield as a function of a 2D electric field imposed by the protein environment on the fluorophore. This map is transferable between Tsien's Class 2 GFP's, and it allows one to estimate the shifts in fluorescence intensity due to mechanical perturbations directly from MD simulations. We use it in combination with steered MD simulations to put forward a hypothesis for the mechanism of a genetically encoded voltage probe (ArcLight) whose mechanism is currently under debate. PMID- 29328674 TI - New Insights on Ecosystem Mercury Cycling Revealed by Stable Isotopes of Mercury in Water Flowing from a Headwater Peatland Catchment. AB - Stable isotope compositions of mercury (Hg) were measured in the outlet stream and in soil cores at different landscape positions in a 9.7-ha boreal upland peatland catchment. An acidic permanganate/persulfate digestion procedure was validated for water samples with high dissolved organic matter (DOM) concentrations through Hg spike addition analysis. We report a relatively large variation in mass-dependent fractionation (delta202Hg; from -2.12 to -1.320/00) and a smaller, but significant, variation of mass-independent fractionation (Delta199Hg; from -0.35 to -0.120/00) during two years of sampling with streamflow varying from 0.003 to 7.8 L s-1. Large variations in delta202Hg occurred only during low streamflow (<0.6 L s-1), which suggest that under high streamflow conditions a peatland lagg zone between the bog (3.0 ha) and uplands (6.7 ha) becomes the dominant source of Hg in downstream waters. Further, a binary mixing model showed that except for the spring snowmelt period, Hg in streamwater from the catchment was mainly derived from dry deposition of gaseous elemental Hg (73-95%). This study demonstrates the usefulness of Hg isotopes for tracing sources of Hg deposition, which can lead to a better understanding of the biogeochemical cycling and hydrological transport of Hg in headwater catchments. PMID- 29328675 TI - Design, Synthesis, and Evaluation of N- and C-Terminal Protein Bioconjugates as G Protein-Coupled Receptor Agonists. AB - A G protein-coupled receptor (GPCR) agonist protein, thaumatin, was site specifically conjugated at the N- or C-terminus with a fluorophore for visualization of GPCR:agonist interactions. The N-terminus was specifically conjugated using a synthetic 2-pyridinecarboxyaldehyde reagent. The interaction profiles observed for N- and C-terminal conjugates were varied; N-terminal conjugates interacted very weakly with the GPCR of interest, whereas C-terminal conjugates bound to the receptor. These chemical biology tools allow interactions of therapeutic proteins:GPCR to be monitored and visualized. The methodology used for site-specific bioconjugation represents an advance in application of 2 pyridinecarboxyaldehydes for N-terminal specific bioconjugations. PMID- 29328676 TI - Stabilizing Leaf and Branch Compost Cutinase (LCC) with Glycosylation: Mechanism and Effect on PET Hydrolysis. AB - Cutinases are polyester hydrolases that show a remarkable capability to hydrolyze polyethylene terephthalate (PET) to its monomeric units. This revelation has stimulated research aimed at developing sustainable and green cutinase-catalyzed PET recycling methods. Leaf and branch compost cutinase (LCC) is particularly suited toward these ends given its relatively high PET hydrolysis activity and thermostability. Any practical enzymatic PET recycling application will require that the protein have kinetic stability at or above the PET glass transition temperature (Tg, i.e., 70 degrees C). This paper elucidates the thermodynamics and kinetics of LCC conformational and colloidal stability. Aggregation emerged as a major contributor that reduces LCC kinetic stability. In its native state, LCC is prone to aggregation owing to electrostatic interactions. Further, with increasing temperature, perturbation of LCC's tertiary structure and corresponding exposure of hydrophobic domains leads to rapid aggregation. Glycosylation was employed in an attempt to impede LCC aggregation. Owing to the presence of three putative N-glycosylation sites, expression of native LCC in Pichia pastoris resulted in the production of glycosylated LCC (LCC-G). LCC-G showed improved stability to native state aggregation while increasing the temperature for thermal induced aggregation by 10 degrees C. Furthermore, stabilization against thermal aggregation resulted in improved catalytic PET hydrolysis both at its optimum temperature and concentration. PMID- 29328677 TI - Metabolic Analysis Reveals Altered Long-Chain Fatty Acid Metabolism in the Host by Huanglongbing Disease. AB - Candidatus Liberibacter asiaticus (CLas) is the presumed causal agent of Huanglongbing, one of the most destructive diseases in citrus. However, the lipid metabolism component of host response to this pathogen has not been investigated well. Here, metabolic profiling of a variety of long-chain fatty acids and their oxidation products was first performed to elucidate altered host metabolic responses of disease. Fatty acid signals were found to decrease obviously in response to disease regardless of cultivar. Several lipid oxidation products strongly correlated with those fatty acids were also consistently reduced in the diseased group. Using a series of statistical methods and metabolic pathway mapping, we found significant markers contributing to the pathological symptoms and identified their internal relationships and metabolic network. Our findings suggest that the infection of CLas may cause the altered metabolism of long-chain fatty acids, possibly leading to manipulation of the host's defense derived from fatty acids. PMID- 29328678 TI - Colossal Anisotropy of the Dynamic Magnetic Susceptibility in Low-Dimensional Nanocube Assemblies. AB - One of the ultimate goals of nanocrystal self-assembly is to transform nanoscale building blocks into a material that displays enhanced properties relative to the sum of its parts. Herein, we demonstrate that 1D needle-shaped assemblies composed of Fe3-deltaO4 nanocubes display a significant augmentation of the magnetic susceptibility and dissipation as compared to 0D and 2D systems. The performance of the nanocube needles is highlighted by a colossal anisotropy factor defined as the ratio of the parallel to the perpendicular magnetization components. We show that the origin of this effect cannot be ascribed to shape anisotropy in its classical sense; as such, it has no analogy in bulk magnetic materials. The temperature-dependent anisotropy factors of the in- and out-of phase components of the magnetization have an extremely strong particle size dependence and reach values of 80 and 2500, respectively, for the largest nanocubes in this study. Aided by simulations, we ascribe the anisotropy of the magnetic susceptibility, and its strong particle-size dependence to a synergistic coupling between the dipolar interaction field and a net anisotropy field resulting from a partial texture in the 1D nanocube needles. PMID- 29328679 TI - Effect of End-Grafted Polymer Conformation on Protein Resistance. AB - Monte Carlo simulation combined with an experimental method was used to investigate the effect of the conformational structure of polymer brushes on their protein resistance. The end-grafted polymers with two conformational structures, i.e., linear and looped, were considered. Protein adsorption behaviors on the surfaces grafted with either linear or looped polymers were investigated. Different chain lengths and grafting numbers of end-grafted polymers were employed in this simulation. The simulation results indicated that for long polymer brushes the conformational change from linear to looped generally improved their protein-resistant property for all of the grafting numbers investigated here, and a remarkable improvement in protein resistance can be achieved at a certain grafting number. Moreover, the simulations revealed that the smoothness of the surface and the formation of a dense impenetrable layer are the two significant characteristics of the looped polymer brush in resisting protein adsorption. Meanwhile, experiment results also showed that for a given chain length and grafting number the protein-resistant property of the looped polymer brush was superior to that of the surface grafted with linear polymers, which is quite consistent with the simulation results. These results further elucidated the difference in the protein-resistant property between the linear and looped polymer brushes, which provided useful information for preparing excellent antifouling materials in future experiments. PMID- 29328680 TI - Insomnia and motor vehicle accident-related injuries, active component, U.S. Armed Forces, 2007-2016. AB - Insomnia is the most common sleep disorder in adults, and its incidence is increasing in the U.S. Armed Forces. A potential consequence of insomnia (including medications used to treat it) is increased risk of motor vehicle accidents (MVAs), which cause significant morbidity and mortality in service members. To examine the relationship between insomnia and MVA-related injuries in the U.S. Armed Forces, this retrospective cohort study compared incidence rates of MVA-related injuries from 2007 through 2016 between service members with diagnosed insomnia and an unexposed cohort. After adjustment for multiple covariates, service members with insomnia had more than double the rate of MVA related injuries, compared to service members without insomnia (adjusted incidence rate ratio: 2.08; 95% CI: 1.95-2.22). A subanalysis of service members with insomnia during 2014-2016 found no difference in risk of MVA-related injury based on days' supply of sleep aid medications prescribed in 365 days following insomnia diagnosis. Insomnia is an important potential risk factor for MVAs in the military. Sleep health should be a component of MVA prevention efforts. PMID- 29328682 TI - Brief report: Prevalence of hepatitis B and C virus infections in U.S. Air Force basic military trainees who donated blood, 2013-2016. AB - Hepatitis B virus (HBV) and hepatitis C virus (HCV) can cause significant morbidity in military service members. Prevalences of HBV and HCV infections among military recruits accessioning into the U.S. Air Force have not previously been described. The Joint Base San Antonio-Lackland Blood Donor Center was queried for the results of HBV and HCV screening tests among all basic military trainees who donated blood between 25 November 2013 and 16 April 2016. Other active and reserve component members were excluded. The estimated prevalences of HBV and HCV infections among recruit blood donors were 0.0098% and 0.007%, respectively. This study suggests that the overall estimated prevalence of HBV and HCV infection is much lower among U.S. Air Force basic trainees, compared to other active and reserve component members and U.S. civilian populations. HBV and HCV viral infections can have a negative impact on mission readiness and individual deployment status, and have significant costs for the military. Additional studies are needed to determine cost effectiveness of screening for viral hepatitis among military populations. PMID- 29328681 TI - Seizures among active component service members, U.S. Armed Forces,2007-2016. AB - Traumatic brain injury (TBI) is a known risk factor for seizures. Evidence also shows that post-traumatic stress disorder (PTSD) is associated with seizures, but the relationship in the absence of TBI remains unclear. This retrospective study spanning 2007-2016 separately quantifies the rates of seizures diagnosed among deployed and non-deployed active component military service members to understand the factors associated with seizures and whether they differ in deployed settings. Higher rates of seizures were associated with service members who were in the Army or Marine Corps; female; black; younger; lower enlisted; in a combat specific, armor/motor transport, or healthcare occupation; and who had no more than one previous deployment. These associations were similar among both deployed and non-deployed service members. Either a TBI or recent PTSD diagnosis was associated with a 3- to 4-fold increased seizure rate. For service members who had received both diagnoses, seizure rates among the deployed and the non deployed were two and three times the rates among those with only one of those diagnoses, respectively. If the current results are supported by future investigations, there may be implications for both clinical care and military policy. PMID- 29328683 TI - Fatigue and related comorbidities, active component, U.S. Armed Forces, 2007 2016. AB - Fatigue is a common complaint in the civilian population and may be a presenting symptom of more serious physical and mental disorders. Data from the Defense Medical Surveillance System (DMSS) were utilized to characterize the incidence and burden of fatigue in active component military members from 1 January 2007 through 31 December 2016. A subanalysis of 3 years within this surveillance period (2012-2014) was also conducted to assess the burden of comorbidities related to incident fatigue and the strength of the association between fatigue and selected comorbidities. The study identified 211,213 incident cases of fatigue with an overall incidence rate of 18.1 per 1,000 person-years between 2007 and 2016. Mental disorders and musculoskeletal disease accounted for about 35% of all medical encounters and about 40% of all hospital days within a year for those diagnosed with fatigue in 2013. The adjusted odds ratio for fatigue was highest in those with male hypogonadism, thyroid disorder, and sleep problems. These results show that fatigue is a common diagnosis with high incidence and burden among active component U.S. military. By focusing on the conditions that frequently occur and are highly associated with fatigue, more rapid diagnosis and treatment of the underlying cause of service member fatigue is possible. PMID- 29328684 TI - Hydrodynamic Signatures of Stationary Marangoni-Driven Surfactant Transport. AB - We experimentally study steady Marangoni-driven surfactant transport on the interface of a deep water layer. Using hydrodynamic measurements, and without using any knowledge of the surfactant physicochemical properties, we show that sodium dodecyl sulphate and Tergitol 15-S-9 introduced in low concentrations result in a flow driven by adsorbed surfactant. At higher surfactant concentration, the flow is dominated by the dissolved surfactant. Using camphoric acid, whose properties are a priori unknown, we demonstrate this method's efficacy by showing its spreading is adsorption dominated. PMID- 29328685 TI - Tunable Intrinsic Plasmons due to Band Inversion in Topological Materials. AB - Band inversion has led to rich physical effects in both topological insulators and topological semimetals. It has been found that the inverted band structure with the Mexican-hat dispersion could enhance the interband correlation leading to a strong intrinsic plasmon excitation. Its frequency ranges from several meV to tens of meV and can be effectively tuned by the external fields. The electron hole asymmetric term splits the peak of the plasmon excitation into double peaks. The fate and properties of this plasmon excitation can also act as a probe to characterize the topological phases even in lightly doped systems. We numerically demonstrate the impact of band inversion on plasmon excitations in magnetically doped thin films of three-dimensional strong topological insulators, V- or Cr doped (Bi,Sb)_{2}Te_{3}, which support the quantum anomalous Hall states. Our work thus sheds some new light on the potential applications of topological materials in plasmonics. PMID- 29328686 TI - Three-Dimensional Tracking of Interfacial Hopping Diffusion. AB - Theoretical predictions have suggested that molecular motion at interfaces-which influences processes including heterogeneous catalysis, (bio)chemical sensing, lubrication and adhesion, and nanomaterial self-assembly-may be dominated by hypothetical "hops" through the adjacent liquid phase, where a diffusing molecule readsorbs after a given hop according to a probabilistic "sticking coefficient." Here, we use three-dimensional (3D) single-molecule tracking to explicitly visualize this process for human serum albumin at solid-liquid interfaces that exert varying electrostatic interactions on the biomacromolecule. Following desorption from the interface, a molecule experiences multiple unproductive surface encounters before readsorption. An average of approximately seven surface collisions is required for the repulsive surfaces, decreasing to approximately two and a half for surfaces that are more attractive. The hops themselves are also influenced by long-range interactions, with increased electrostatic repulsion causing hops of longer duration and distance. These findings explicitly demonstrate that interfacial diffusion is dominated by biased 3D Brownian motion involving bulk-surface coupling and that it can be controlled by influencing short- and long-range adsorbate-surface interactions. PMID- 29328687 TI - Erratum: Ultrafine Entanglement Witnessing [Phys. Rev. Lett. 118, 110502 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.118.110502. PMID- 29328688 TI - Astrometric Search Method for Individually Resolvable Gravitational Wave Sources with Gaia. AB - Gravitational waves (GWs) cause the apparent position of distant stars to oscillate with a characteristic pattern on the sky. Astrometric measurements (e.g., those made by Gaia) provide a new way to search for GWs. The main difficulty facing such a search is the large size of the data set; Gaia observes more than one billion stars. In this Letter the problem of searching for GWs from individually resolvable supermassive black hole binaries using astrometry is addressed for the first time; it is demonstrated how the data set can be compressed by a factor of more than 10^{6}, with a loss of sensitivity of less than 1%. This technique was successfully used to recover artificially injected GW signals from mock Gaia data and to assess the GW sensitivity of Gaia. Throughout the Letter the complementarity of Gaia and pulsar timing searches for GWs is highlighted. PMID- 29328689 TI - High-Energy Limit of QCD beyond the Sudakov Approximation. AB - We study the high-energy fixed-angle Sudakov limit of the scattering amplitudes suppressed by the leading power of the quark mass in perturbative quantum chromodynamics. We prove the factorization and perform all-order resummation of the double-logarithmic radiative corrections which determine the asymptotic behavior of the amplitudes. In contrast to the Sudakov logarithms, the mass suppressed double-logarithmic corrections are induced by soft quark exchange. The structure of the corrections and the asymptotic behavior of the amplitudes in this case crucially depend on the color flow in a given process and are determined by the eikonal color charge nonconservation. We present explicit results for the Higgs boson production in gluon fusion mediated by a light-quark loop and for the leading power-suppressed contributions to the quark form factors, which reveal "magical" universality. Nontrivial relations between the asymptotic behavior of different amplitudes and the amplitudes in different gauge theories are found. PMID- 29328691 TI - Landau Phonon-Roton Theory Revisited for Superfluid ^{4}He and Fermi Gases. AB - Liquid helium and spin-1/2 cold-atom Fermi gases both exhibit in their superfluid phase two distinct types of excitations, gapless phonons and gapped rotons or fermionic pair-breaking excitations. In the long wavelength limit, revising and extending the theory of Landau and Khalatnikov initially developed for helium [Zh. Exp. Teor. Fiz. 19, 637 (1949)], we obtain universal expressions for three- and four-body couplings among these two types of excitations. We calculate the corresponding phonon damping rates at low temperature and compare them to those of a pure phononic origin in high-pressure liquid helium and in strongly interacting Fermi gases, paving the way to experimental observations. PMID- 29328690 TI - One-Parameter Scaling Theory for DNA Extension in a Nanochannel. AB - Experiments measuring DNA extension in nanochannels are at odds with even the most basic predictions of current scaling arguments for the conformations of confined semiflexible polymers such as DNA. We show that a theory based on a weakly self-avoiding, one-dimensional "telegraph" process collapses experimental data and simulation results onto a single master curve throughout the experimentally relevant region of parameter space and explains the mechanisms at play. PMID- 29328692 TI - Role of the Pair Correlation Function in the Dynamical Transition Predicted by Mode Coupling Theory. AB - In a recent study, we have found that for a large number of systems the configurational entropy at the pair level S_{c2}, which is primarily determined by the pair correlation function, vanishes at the dynamical transition temperature T_{c}. Thus, it appears that the information of the transition temperature is embedded in the structure of the liquid. In order to investigate this, we describe the dynamics of the system at the mean field level and, using the concepts of the dynamical density functional theory, show that the dynamical transition temperature depends only on the pair correlation function. Thus, this theory is similar in spirit to the microscopic mode coupling theory (MCT). However, unlike microscopic MCT, which predicts a very high transition temperature, the present theory predicts a transition temperature that is similar to T_{c}. This implies that the information of the dynamical transition temperature is embedded in the pair correlation function. PMID- 29328693 TI - Coevolution Maintains Diversity in the Stochastic "Kill the Winner" Model. AB - The "kill the winner" hypothesis is an attempt to address the problem of diversity in biology. It argues that host-specific predators control the population of each prey, preventing a winner from emerging and thus maintaining the coexistence of all species in the system. We develop a stochastic model for the kill the winner paradigm and show that the stable coexistence state of the deterministic kill the winner model is destroyed by demographic stochasticity, through a cascade of extinction events. We formulate an individual-level stochastic model in which predator-prey coevolution promotes the high diversity of the ecosystem by generating a persistent population flux of species. PMID- 29328694 TI - Resilient Nodeless d-Wave Superconductivity in Monolayer FeSe. AB - Monolayer FeSe exhibits the highest transition temperature among the iron based superconductors and appears to be fully gapped, seemingly consistent with s-wave superconductivity. Here, we develop a theory for the superconductivity based on coupling to fluctuations of checkerboard magnetic order (which has the same translation symmetry as the lattice). The electronic states are described by a symmetry based k.p-like theory and naturally account for the states observed by angle resolved photoemission spectroscopy. We show that a prediction of this theory is that the resultant superconducting state is a fully gapped, nodeless, d wave state. This state, which would usually have nodes, stays nodeless because, as seen experimentally, the relevant spin-orbit coupling has an energy scale smaller than the superconducting gap. PMID- 29328695 TI - Color Memory: A Yang-Mills Analog of Gravitational Wave Memory. AB - A transient color flux across null infinity in classical Yang-Mills theory is considered. It is shown that a pair of test "quarks" initially in a color singlet generically acquire net color as a result of the flux. A nonlinear formula is derived for the relative color rotation of the quarks. For a weak color flux, the formula linearizes to the Fourier transform of the soft gluon theorem. This color memory effect is the Yang-Mills analog of the gravitational memory effect. PMID- 29328696 TI - Symmetry Preservation and Critical Fluctuations in a Pseudospin Crossover Perovskite LaCoO_{3}. AB - Spin-state crossover beyond a conventional ligand-field theory has been a fundamental issue in condensed matter physics. Here, we report microscopic observations of spin states and low-energy dynamics through orbital-resolved NMR spectroscopy in the prototype compound LaCoO_{3}. The ^{59}Co NMR spectrum shows the preserved crystal symmetry across the crossover, inconsistent with d orbital ordering due to the Jahn-Teller distortion. The orbital degeneracy results in a pseudospin (J[over ~]=1) excited state with an orbital moment observed as ^{59}Co hyperfine coupling tensors. We found that the population of the excited state evolves above the heart crossover temperature. The crossover involves critical spin-state fluctuations emerging under the magnetic field. These results suggest that the spin-state crossover can be mapped into a statistical problem, analogous to the supercritical liquid in liquid-gas transition. PMID- 29328698 TI - Emergence of Long-Ranged Stress Correlations at the Liquid to Glass Transition. AB - A theory for the nonlocal shear stress correlations in supercooled liquids is derived from first principles. It captures the crossover from viscous to elastic dynamics at an idealized liquid to glass transition and explains the emergence of long-ranged stress correlations in glass, as expected from classical continuum elasticity. The long-ranged stress correlations can be traced to the coupling of shear stress to transverse momentum, which is ignored in the classic Maxwell model. To rescue this widely used model, we suggest a generalization in terms of a single relaxation time tau for the fast degrees of freedom only. This generalized Maxwell model implies a divergent correlation length xi?tau as well as dynamic critical scaling and correctly accounts for the far-field stress correlations. It can be rephrased in terms of generalized hydrodynamic equations, which naturally couple stress and momentum and furthermore allow us to connect to fluidity and elastoplastic models. PMID- 29328697 TI - Sorting Photons by Radial Quantum Number. AB - The Laguerre-Gaussian (LG) modes constitute a complete basis set for representing the transverse structure of a paraxial photon field in free space. Earlier workers have shown how to construct a device for sorting a photon according to its azimuthal LG mode index, which describes the orbital angular momentum (OAM) carried by the field. In this paper we propose and demonstrate a mode sorter based on the fractional Fourier transform to efficiently decompose the optical field according to its radial profile. We experimentally characterize the performance of our implementation by separating individual radial modes as well as superposition states. The reported scheme can, in principle, achieve unit efficiency and thus can be suitable for applications that involve quantum states of light. This approach can be readily combined with existing OAM mode sorters to provide a complete characterization of the transverse profile of the optical field. PMID- 29328699 TI - Oscillations in Aggregation-Shattering Processes. AB - We observe never-ending oscillations in systems undergoing collision-controlled aggregation and shattering. Specifically, we investigate aggregation-shattering processes with aggregation kernels K_{i,j}=(i/j)^{a}+(j/i)^{a} and shattering kernels F_{i,j}=lambdaK_{i,j}, where i and j are cluster sizes, and parameter lambda quantifies the strength of shattering. When 0<=a<1/2, there are no oscillations, and the system monotonically approaches a steady state for all values of lambda; in this region, we obtain an analytical solution for the stationary cluster size distribution. Numerical solutions of the rate equations show that oscillations emerge in the 1/2=1 is a natural consequence of scale separation and derive the relationship using effective field theory. While the scaling factor a_{2} is a ratio of nuclear matrix elements that individually depend on the calculational scheme, we show that the ratio is independent of this choice. We perform Green's function Monte Carlo calculations with both chiral and Argonne-Urbana potentials to verify this and determine the scaling factors for light nuclei. The resulting values for ^{3}He and ^{4}He are in good agreement with experimental values. We also present results for ^{9}Be and ^{12}C extracted from variational Monte Carlo calculations. PMID- 29328705 TI - Quantum Triple Point and Quantum Critical End Points in Metallic Magnets. AB - In low-temperature metallic magnets, ferromagnetic (FM) and antiferromagnetic (AFM) orders can exist, adjacent to one another or concurrently, in the phase diagram of a single system. We show that universal quantum effects qualitatively alter the known phase diagrams for classical magnets. They shrink the region of concurrent FM and AFM order, change various transitions from second to first order, and, in the presence of a magnetic field, lead to either a quantum triple point where the FM, AFM, and paramagnetic phases all coexist or a quantum critical end point. PMID- 29328706 TI - Observation of Slow Dynamics near the Many-Body Localization Transition in One Dimensional Quasiperiodic Systems. AB - In the presence of sufficiently strong disorder or quasiperiodic fields, an interacting many-body system can fail to thermalize and become many-body localized. The associated transition is of particular interest, since it occurs not only in the ground state but over an extended range of energy densities. So far, theoretical studies of the transition have focused mainly on the case of true-random disorder. In this work, we experimentally and numerically investigate the regime close to the many-body localization transition in quasiperiodic systems. We find slow relaxation of the density imbalance close to the transition, strikingly similar to the behavior near the transition in true-random systems. This dynamics is found to continuously slow down upon approaching the transition and allows for an estimate of the transition point. We discuss possible microscopic origins of these slow dynamics. PMID- 29328707 TI - Second Sound in Systems of One-Dimensional Fermions. AB - We study sound in Galilean invariant systems of one-dimensional fermions. At low temperatures, we find a broad range of frequencies in which in addition to the waves of density there is a second sound corresponding to the ballistic propagation of heat in the system. The damping of the second sound mode is weak, provided the frequency is large compared to a relaxation rate that is exponentially small at low temperatures. At lower frequencies, the second sound mode is damped, and the propagation of heat is diffusive. PMID- 29328708 TI - Liquid-Gas Transitions in Steady Heat Conduction. AB - We study liquid-gas transitions of heat conduction systems in contact with two heat baths under constant pressure in the linear response regime. On the basis of local equilibrium thermodynamics, we propose an equality with a global temperature, which determines the volume near the equilibrium liquid-gas transition. We find that the formation of the liquid-gas interface is accompanied by a discontinuous change in the volume when increasing the mean temperature of the baths. A supercooled gas near the interface is observed as a stable steady state. PMID- 29328709 TI - Topological Vortex and Knotted Dissipative Optical 3D Solitons Generated by 2D Vortex Solitons. AB - We predict a new class of three-dimensional (3D) topological dissipative optical one-component solitons in homogeneous laser media with fast saturable absorption. Their skeletons formed by vortex lines where the field vanishes are tangles, i.e., N_{c} knotted or unknotted, linked or unlinked closed lines and M unclosed lines that thread all the closed lines and end at the infinitely far soliton periphery. They are generated by embedding two-dimensional laser solitons or their complexes in 3D space after their rotation around an unclosed, infinite vortex line with topological charge M_{0} (N_{c}, M, and M_{0} are integers). With such structure propagation, the "hula-hoop" solitons form; their stability is confirmed numerically. For the solitons found, all vortex lines have unit topological charge: the number of closed lines N_{c}=1 and 2 (unknots, trefoils, and Solomon knots links); unclosed vortex lines are unknotted and unlinked, their number M=1, 2, and 3. PMID- 29328710 TI - Ultrafast Charge Transfer Processes Accompanying KLL Auger Decay in Aqueous KCl Solution. AB - X-ray photoelectron and KLL Auger spectra were measured for the K^{+} and Cl^{-} ions in aqueous KCl solution. While the XPS spectra of these ions have similar structures, both exhibiting only weak satellites near the main line, the Auger spectra differ dramatically. Contrary to the chloride case, a very strong extra peak was found in the Auger spectrum of K^{+} at the low kinetic energy side of the ^{1}D state. Using the equivalent core model and ab initio calculations this spectral feature was assigned to electron transfer processes from solvent water molecules to the solvated cation. The observed charge transfer processes are suggested to play an important role in charge redistribution following single and multiple core-hole creation in atoms and molecules placed into environment. PMID- 29328711 TI - Measurement of the Frequency of the 2 ^{3}S-2 ^{3}P Transition of ^{4}He. AB - The 2 ^{3}S-2 ^{3}P transition of ^{4}He was measured by comb-linked laser spectroscopy using a transverse-cooled atomic beam. The centroid frequency was determined to be 276 736 495 600.0(1.4) kHz, with a fractional uncertainty of 5.1*10^{-12}. This value is not only more accurate but also differs by as much as -49.5 kHz (20sigma) from the previous result given by [Cancio Pastor et al., Phys. Rev. Lett. 92, 023001 (2004)PRLTAO0031-900710.1103/PhysRevLett.92.023001; Cancio Pastor et al.Phys. Rev. Lett.97, 139903(E) (2006)10.1103/PhysRevLett.97.139903; Cancio Pastor et al.Phys. Rev. Lett.108, 143001 (2012)10.1103/PhysRevLett.108.143001]. In combination with ongoing theoretical calculations, this work may allow the most accurate determination of the nuclear charge radius of helium. PMID- 29328712 TI - Recoil Effect on the g Factor of Li-Like Ions. AB - The nuclear recoil effect on the g factor of Li-like ions is evaluated. The one electron recoil contribution is treated within the framework of the rigorous QED approach to the first order in the electron-to-nucleus mass ratio m/M and to all orders in the parameter alphaZ. These calculations are performed in a range Z=3 92. The two-electron recoil term is calculated for low- and middle-Z ions within the Breit approximation using a four-component approach. The results for the two electron recoil part obtained in the Letter strongly disagree with the previous calculations performed using an effective two-component Hamiltonian. The obtained value for the recoil effect is used to calculate the isotope shift of the g factor of Li-like ^{A}Ca^{17+} with A=40 and A=48 which was recently measured. It is found that the new theoretical value for the isotope shift is closer to the experimental one than the previously obtained value. PMID- 29328713 TI - Egalitarianism among Bubbles in Porous Media: An Ostwald Ripening Derived Anticoarsening Phenomenon. AB - We show that smaller gas bubbles grow at the expense of larger bubbles and all bubbles approach the same surface curvature after long times in porous media. This anticoarsening effect is contrary to typical Ostwald ripening and leads to uniformly sized bubbles in a homogeneous medium. Evolution dynamics of bubble populations were measured, and mathematical models were developed that fit the experimental data well. Ostwald ripening is shown to be the driving mechanism in this anticoarsening phenomenon; however, the relationship between surface curvature and bubble size determined by the pore-throat geometric confinement reverses the ripening direction. PMID- 29328714 TI - Experimental Observation of Two Features Unexpected from the Classical Theories of Rubber Elasticity. AB - Although the elastic modulus of a Gaussian chain network is thought to be successfully described by classical theories of rubber elasticity, such as the affine and phantom models, verification experiments are largely lacking owing to difficulties in precisely controlling of the network structure. We prepared well defined model polymer networks experimentally, and measured the elastic modulus G for a broad range of polymer concentrations and connectivity probabilities, p. In our experiment, we observed two features that were distinct from those predicted by classical theories. First, we observed the critical behavior G~|p p_{c}|^{1.95} near the sol-gel transition. This scaling law is different from the prediction of classical theories, but can be explained by analogy between the electric conductivity of resistor networks and the elasticity of polymer networks. Here, p_{c} is the sol-gel transition point. Furthermore, we found that the experimental G-p relations in the region above C^{*} did not follow the affine or phantom theories. Instead, all the G/G_{0}-p curves fell onto a single master curve when G was normalized by the elastic modulus at p=1, G_{0}. We show that the effective medium approximation for Gaussian chain networks explains this master curve. PMID- 29328715 TI - Universality and Stability of the Edge States of Chiral-Symmetric Topological Semimetals and Surface States of the Luttinger Semimetal. AB - We theoretically demonstrate that the chiral structure of the nodes of nodal semimetals is responsible for the existence and universal local properties of the edge states in the vicinity of the nodes. We perform a general analysis of the edge states for an isolated node of a 2D semimetal, protected by chiral symmetry and characterized by the topological winding number N. We derive the asymptotic chiral-symmetric boundary conditions and find that there are N+1 universal classes of them. The class determines the numbers of flatband edge states on either side off the node in the 1D spectrum and the winding number N gives the total number of edge states. We then show that the edge states of chiral nodal semimetals are robust: they persist in a finite-size stability region of parameters of chiral-asymmetric terms. This significantly extends the notion of 2D and 3D topological nodal semimetals. We demonstrate that the Luttinger model with a quadratic node for j=3/2 electrons is a 3D topological semimetal in this new sense and predict that alpha-Sn, HgTe, possibly Pr_{2}Ir_{2}O_{7}, and many other semimetals described by it are topological and exhibit surface states. PMID- 29328716 TI - Group Velocity Engineering of Confined Ultrafast Magnons. AB - Quantum confinement permits the existence of multiple terahertz magnon modes in atomically engineered ultrathin magnetic films and multilayers. By means of spin polarized high-resolution electron energy-loss spectroscopy, we report on the direct experimental detection of all exchange-dominated terahertz confined magnon modes in a 3 ML Co film. We demonstrate that, by tuning the structural and magnetic properties of the Co film, through its epitaxial growth on different surfaces, e.g., Ir(001), Cu(001), and Pt(111), one can achieve entirely different in-plane magnon dispersions, characterized by positive and negative group velocities. Our first-principles calculations show that spin-dependent many-body correlation effects in Co films play an important role in the determination of the energies of confined magnon modes. Our results suggest a pathway towards the engineering of the group velocity of confined ultrafast magnons. PMID- 29328717 TI - Excitation Spectra in Crystal Plasticity. AB - Plastically deforming crystals exhibit scale-free fluctuations that are similar to those observed in driven disordered elastic systems close to depinning, but the nature of the yielding critical point is still debated. Here, we study the marginal stability of ensembles of dislocations and compute their excitation spectrum in two and three dimensions. Our results show the presence of a singularity in the distribution of excitation stresses, i.e., the stress needed to make a localized region unstable, that is remarkably similar to the one measured in amorphous plasticity and spin glasses. These results allow us to understand recent observations of extended criticality in bursty crystal plasticity and explain how they originate from the presence of a pseudogap in the excitation spectrum. PMID- 29328718 TI - Charge Catastrophe and Dielectric Breakdown During Exposure of Organic Thin Films to Low-Energy Electron Radiation. AB - The effects of exposure to ionizing radiation are central in many areas of science and technology, including medicine and biology. Absorption of UV and soft x-ray photons releases photoelectrons, followed by a cascade of lower energy secondary electrons with energies down to 0 eV. While these low energy electrons give rise to most chemical and physical changes, their interactions with soft materials are not well studied or understood. Here, we use a low energy electron microscope to expose thin organic resist films to electrons in the range 0-50 eV, and to analyze the energy distribution of electrons returned to the vacuum. We observe surface charging that depends strongly and nonlinearly on electron energy and electron beam current, abruptly switching sign during exposure. Charging can even be sufficiently severe to induce dielectric breakdown across the film. We provide a simple but comprehensive theoretical description of these phenomena, identifying the presence of a cusp catastrophe to explain the sudden switching phenomena seen in the experiments. Surprisingly, the films undergo changes at all incident electron energies, starting at ~0 eV. PMID- 29328719 TI - Breakdown of the Chiral Anomaly in Weyl Semimetals in a Strong Magnetic Field. AB - The low-energy quasiparticles of Weyl semimetals are a condensed-matter realization of the Weyl fermions introduced in relativistic field theory. Chiral anomaly, the nonconservation of the chiral charge under parallel electric and magnetic fields, is arguably the most important phenomenon of Weyl semimetals and has been explained as an imbalance between the occupancies of the gapless, zeroth Landau levels with opposite chiralities. This widely accepted picture has served as the basis for subsequent studies. Here we report the breakdown of the chiral anomaly in Weyl semimetals in a strong magnetic field based on ab initio calculations. A sizable energy gap that depends sensitively on the direction of the magnetic field may open up due to the mixing of the zeroth Landau levels associated with the opposite-chirality Weyl points that are away from each other in the Brillouin zone. Our study provides a theoretical framework for understanding a wide range of phenomena closely related to the chiral anomaly in topological semimetals, such as magnetotransport, thermoelectric responses, and plasmons, to name a few. PMID- 29328720 TI - Real-Time Dynamics and Phase Separation in a Holographic First-Order Phase Transition. AB - We study the fully nonlinear time evolution of a holographic system possessing a first order phase transition. The initial state is chosen in the spinodal region of the phase diagram, and it includes an inhomogeneous perturbation in one of the field theory directions. The final state of the time evolution shows a clear phase separation in the form of domain formation. The results indicate the existence of a very rich class of inhomogeneous black hole solutions. PMID- 29328721 TI - Phase Coexistence in Two-Dimensional Passive and Active Dumbbell Systems. AB - We demonstrate that there is a macroscopic coexistence between regions with hexatic order and regions in the liquid or gas phase over a finite interval of packing fractions in active dumbbell systems with repulsive power-law interactions in two dimensions. In the passive limit, this interval remains finite, similar to what has been found in two-dimensional systems of hard and soft disks. We did not find discontinuous behavior upon increasing activity from the passive limit. PMID- 29328722 TI - Perfect Spin Filter by Periodic Drive of a Ferromagnetic Quantum Barrier. AB - We consider the problem of particle tunneling through a periodically driven ferromagnetic quantum barrier connected to two leads. The barrier is modeled by an impurity site representing a ferromagnetic layer or a quantum dot in a tight binding Hamiltonian with a local magnetic field and an ac-driven potential, which is solved using the Floquet formalism. The repulsive interactions in the quantum barrier are also taken into account. Our results show that the time-periodic potential causes sharp resonances of perfect transmission and reflection, which can be tuned by the frequency, the driving strength, and the magnetic field. We demonstrate that a device based on this configuration could act as a highly tunable spin valve for spintronic applications. PMID- 29328723 TI - Second-Order Temporal Interference with Thermal Light: Interference beyond the Coherence Time. AB - We report the observation of a counterintuitive phenomenon in multipath correlation interferometry with thermal light. The intensity correlation between the outputs of two unbalanced Mach-Zehnder interferometers (UMZIs) with two classically correlated beams of thermal light at the input exhibits genuine second-order interference with the visibility of 1/3. Surprisingly, the second order interference does not degrade at all no matter how much the path length difference in each UMZI is increased beyond the coherence length of the thermal light. Moreover, the second-order interference is dependent on the difference of the UMZI phases. These results differ substantially from those of the entangled photon Franson interferometer, which exhibits two-photon interference dependent on the sum of the UMZI phases and the interference vanishes as the path length difference in each UMZI exceeds the coherence length of the pump laser. Our work offers deeper insight into the interplay between interference and coherence in multiphoton interferometry. PMID- 29328724 TI - Origins of Singlet Fission in Solid Pentacene from an ab initio Green's Function Approach. AB - We develop a new first-principles approach to predict and understand rates of singlet fission with an ab initio Green's-function formalism based on many-body perturbation theory. Starting with singlet and triplet excitons computed from a GW plus Bethe-Salpeter equation approach, we calculate the exciton-biexciton coupling to lowest order in the Coulomb interaction, assuming a final state consisting of two noninteracting spin-correlated triplets with finite center-of mass momentum. For crystalline pentacene, symmetries dictate that the only purely Coulombic fission decay process from a bright singlet state requires a final state consisting of two inequivalent nearly degenerate triplets of nonzero, equal and opposite, center-of-mass momenta. For such a process, we predict a singlet lifetime of 30-70 fs, in very good agreement with experimental data, indicating that this process can dominate singlet fission in crystalline pentacene. Our approach is general and provides a framework for predicting and understanding multiexciton interactions in solids. PMID- 29328725 TI - Realization of a Hole-Doped Mott Insulator on a Triangular Silicon Lattice. AB - The physics of doped Mott insulators is at the heart of some of the most exotic physical phenomena in materials research including insulator-metal transitions, colossal magnetoresistance, and high-temperature superconductivity in layered perovskite compounds. Advances in this field would greatly benefit from the availability of new material systems with a similar richness of physical phenomena but with fewer chemical and structural complications in comparison to oxides. Using scanning tunneling microscopy and spectroscopy, we show that such a system can be realized on a silicon platform. The adsorption of one-third monolayer of Sn atoms on a Si(111) surface produces a triangular surface lattice with half filled dangling bond orbitals. Modulation hole doping of these dangling bonds unveils clear hallmarks of Mott physics, such as spectral weight transfer and the formation of quasiparticle states at the Fermi level, well-defined Fermi contour segments, and a sharp singularity in the density of states. These observations are remarkably similar to those made in complex oxide materials, including high-temperature superconductors, but highly extraordinary within the realm of conventional sp-bonded semiconductor materials. It suggests that exotic quantum matter phases can be realized and engineered on silicon-based materials platforms. PMID- 29328726 TI - Atom Interferometry with the Sr Optical Clock Transition. AB - We report on the realization of a matter-wave interferometer based on single photon interaction on the ultranarrow optical clock transition of strontium atoms. We experimentally demonstrate its operation as a gravimeter and as a gravity gradiometer. No reduction of interferometric contrast was observed for a total interferometer time up to ~10 ms, limited by geometric constraints of the apparatus. Single-photon interferometers represent a new class of high-precision sensors that could be used for the detection of gravitational waves in so far unexplored frequency ranges and to enlighten the boundary between quantum mechanics and general relativity. PMID- 29328727 TI - Exact Time-Dependent Exchange-Correlation Potential in Electron Scattering Processes. AB - We identify peak and valley structures in the exact exchange-correlation potential of time-dependent density functional theory that are crucial for time resolved electron scattering in a model one-dimensional system. These structures are completely missed by adiabatic approximations that, consequently, significantly underestimate the scattering probability. A recently proposed nonadiabatic approximation is shown to correctly capture the approach of the electron to the target when the initial Kohn-Sham state is chosen judiciously, and it is more accurate than standard adiabatic functionals but ultimately fails to accurately capture reflection. These results may explain the underestimation of scattering probabilities in some recent studies on molecules and surfaces. PMID- 29328728 TI - Locally Optimal Control of Complex Networks. AB - It has recently been shown that the minimum energy solution of the control problem for a linear system produces a control trajectory that is nonlocal. An issue then arises when the dynamics represents a linearization of the underlying nonlinear dynamics of the system where the linearization is only valid in a local region of the state space. Here we provide a solution to the problem of optimally controlling a linearized system by deriving a time-varying set that represents all possible control trajectories parametrized by time and energy. As long as the control action terminus is defined within this set, the control trajectory is guaranteed to be local. If the desired terminus of the control action is far from the initial state, a series of local control actions can be performed in series, relinearizing the dynamics at each new position. PMID- 29328729 TI - Ultracold Atoms in a Square Lattice with Spin-Orbit Coupling: Charge Order, Superfluidity, and Topological Signatures. AB - We present an ab initio, numerically exact study of attractive fermions in square lattices with Rashba spin-orbit coupling. The ground state of this system is a supersolid, with coexisting charge and superfluid order. The superfluid is composed of both singlet and triplet pairs induced by spin-orbit coupling. We perform large-scale calculations using the auxiliary-field quantum Monte Carlo method to provide the first full, quantitative description of the charge, spin, and pairing properties of the system. In addition to characterizing the exotic physics, our results will serve as essential high-accuracy benchmarks for the intense theoretical and especially experimental efforts in ultracold atoms to realize and understand an expanding variety of quantum Hall and topological superconductor systems. PMID- 29328730 TI - Spectral Decomposition of Missing Transverse Energy at Hadron Colliders. AB - We propose a spectral decomposition to systematically extract information of dark matter at hadron colliders. The differential cross section of events with missing transverse energy (E_{T}) can be expressed by a linear combination of basis functions. In the case of s-channel mediator models for dark matter particle production, basis functions are identified with the differential cross sections of subprocesses of virtual mediator and visible particle production while the coefficients of basis functions correspond to dark matter invariant mass distribution in the manner of the Kallen-Lehmann spectral decomposition. For a given E_{T} data set and mediator model, we show that one can differentiate a certain dark matter-mediator interaction from another through spectral decomposition. PMID- 29328731 TI - High-Resolution Quantum Sensing with Shaped Control Pulses. AB - We investigate the application of amplitude-shaped control pulses for enhancing the time and frequency resolution of multipulse quantum sensing sequences. Using the electronic spin of a single nitrogen-vacancy center in diamond and up to 10 000 coherent microwave pulses with a cosine square envelope, we demonstrate 0.6 ps timing resolution for the interpulse delay. This represents a refinement by over 3 orders of magnitude compared to the 2-ns hardware sampling. We apply the method for the detection of external ac magnetic fields and nuclear magnetic resonance signals of ^{13}C spins with high spectral resolution. Our method is simple to implement and especially useful for quantum applications that require fast phase gates, many control pulses, and high fidelity. PMID- 29328732 TI - Asymptotically Safe Standard Model via Vectorlike Fermions. AB - We construct asymptotically safe extensions of the standard model by adding gauged vectorlike fermions. Using large number-of-flavor techniques we argue that all gauge couplings, including the hypercharge and, under certain conditions, the Higgs coupling, can achieve an interacting ultraviolet fixed point. PMID- 29328733 TI - Understanding Quality Factor Degradation in Superconducting Niobium Cavities at Low Microwave Field Amplitudes. AB - In niobium superconducting radio frequency (SRF) cavities for particle acceleration, a decrease of the quality factor at lower fields-a so-called low field Q slope or LFQS-has been a long-standing unexplained effect. By extending the high Q measurement techniques to ultralow fields, we discover two previously unknown features of the effect: (i) saturation at rf fields lower than E_{acc}~0.1 MV/m; (ii) strong degradation enhancement by growing thicker niobium pentoxide. Our findings suggest that the LFQS may be caused by the two level systems in the natural niobium oxide on the inner cavity surface, thereby identifying a new source of residual resistance and providing guidance for potential nonaccelerator low-field applications of SRF cavities. PMID- 29328734 TI - Connecting the Kuramoto Model and the Chimera State. AB - Since its discovery in 2002, the chimera state has frequently been described as a counterintuitive, puzzling phenomenon. The Kuramoto model, in contrast, has become a celebrated paradigm useful for understanding a range of phenomena related to phase transitions, synchronization, and network effects. Here we show that the chimera state can be understood as emerging naturally through a symmetry breaking bifurcation from the Kuramoto model's partially synchronized state. Our analysis sheds light on recent observations of chimera states in laser arrays, chemical oscillators, and mechanical pendula. PMID- 29328735 TI - Universal Entropy of Conformal Critical Theories on a Klein Bottle. AB - We show that rational conformal field theories in 1+1 dimensions on a Klein bottle, with a length L and width beta, satisfying L?beta, have a universal entropy. This universal entropy depends on the quantum dimensions of the primary fields and can be accurately extracted by taking a proper ratio between the Klein bottle and torus partition functions, enabling the characterization of conformal critical theories. The result is checked against exact calculations in quantum spin-1/2 XY and Ising chains. PMID- 29328736 TI - Dynamical Formation of Kerr Black Holes with Synchronized Hair: An Analytic Model. AB - East and Pretorius have successfully evolved, using fully nonlinear numerical simulations, the superradiant instability of the Kerr black hole (BH) triggered by a massive, complex vector field. Evolutions terminate in stationary states of a vector field condensate synchronized with a rotating BH horizon. We show that these end points are fundamental states of Kerr BHs with synchronized Proca hair. Motivated by the "experimental data" from these simulations, we suggest a universal (i.e., field-spin independent), analytic model for the subset of BHs with synchronized hair that possess a quasi-Kerr horizon, applicable in the weak hair regime. Comparing this model with fully nonlinear numerical solutions of BHs with a synchronized scalar or Proca hair, we show that the model is accurate for hairy BHs that may emerge dynamically from superradiance, whose domain we identify. PMID- 29328737 TI - Simple mastectomy under hypnosis: A case study approach. AB - There is a clear inverse relationship between preoperative anxiety and effective anaesthesia and recovery. Studies have shown that perioperative anxiety can be detrimental to the efficacy of recovery. In order to mitigate the perioperative anaesthetic risk to the patient, perioperative care must be inclusive of psychological as well as physiological elements. Therefore, when planning and implementing care for the surgical patient alternative interventions, such as hypnosis, should be considered when presented with difficult patient factors, such as crippling anxiety. This article takes on a case study approach to critically analyse and appraise the holistic care of a patient undergoing a simple mastectomy with hypnosis as the primary anaesthesia. PMID- 29328738 TI - The rise of inventory management in operating theatre departments. AB - The procurement and inventory management challenges within our healthcare sector have been the subject of debate for some time, but with new government initiatives recently introduced, procurement and inventory management have become the new areas of focus behind muchneeded change within the NHS back-office. PMID- 29328739 TI - From novice to expert: a surgical care practitioner's reflection on their role development. AB - As co-lead for the AfPP Advancing Surgical Roles Specialist Interest Group, I was recently asked about which procedures a surgical care practitioner (SCP) can be trained to undertake and how the SCP role can be developed fully within the remit of the surgical team. This question enabled me to reflect upon and explore the development of my own role of a vascular and general SCP using Benner's adaptation of the Dreyfus' expertise acquisition model that describes the transition that nurses and, one could argue, all healthcare professionals make from novice to expert practitioners (Benner 1984) (Figure 1). PMID- 29328740 TI - Using a STOP/GO protocol in the preoperative area to increase patient safety. AB - A multitude of surgeries are performed each year and 15% of cases have an adverse event, most of which are preventable. A culture of safety must be adopted by the entire surgical team. A preoperative checklist in addition to the intraoperative checklist can help decrease errors. We adapted a Stop/Go process in the preoperative area which had to be completed prior to moving the patient into the operating room. We examined adverse events before and after this process. Adverse events decreased from 1.5% to nearly 0% over the time examined. The Stop/Go preoperative checklist, adapted to our specific operating room needs, helped to decrease adverse events. PMID- 29328741 TI - Perioperative teamwork for the patient with a shared airway: a case study. AB - Teamwork is an essential element of perioperative care. Shared airway surgery requires additional considerations for the perioperative team. This article analyses a case study of a patient undergoing thyroid surgery. Whilst the anaesthetic team is responsible for maintaining the patient's airway, the theatre and surgical teams have their own individual roles to assist in airway management and surgical care. PMID- 29328742 TI - Pragmatic recycling of paper and cardboard in the operating theatre: an audit. AB - Despite recent legislation introduced in Scotland and motivated recycling at home, very little recycling exists within theatre environments. This study audited the introduction of recycling of paper and cardboard. All waste within a single operating theatre was collected by a dedicated team for 20 surgical cases. The collection of clean paper and cardboard packaging was limited to the theatre preparation room (TPR) and anaesthetic room (AR). No waste segregation was attempted within the operating theatre itself. The results showed that the AR produced a mean weight of 1.3kg of waste per patient (50% paper and cardboard), and the TPR produced 3.05kg per patient (33% general waste; 44% paper; 23% cardboard). Recycling saved a mean of L0.51 per case. The 54kg of recycled bags produced during the study saved 25kg CO2 emissions. This study describes a pragmatic method to recycle paper and cardboard within the TPR and AR. There are significant potential financial and environmental savings to be achieved. PMID- 29328743 TI - Man behind the laryngoscopy is important. AB - Tracheal intubation is the most fundamental and effective resuscitation skill in many emergency situations. It is also performed to facilitate various surgical procedures and mechanical ventilation in critically ill patients. Tracheal intubation is also one of the most commonly taught clinical skills. PMID- 29328744 TI - ASA grading: a step forward. AB - ASA grading is universally used as a predictor of postoperative outcome. It has been incorporated as part of the WHO checklist to make everyone involved in patient care aware of the patient's physical status, and infer a possible postoperative outcome. Everyone in theatre involved in the care of the patient is aware of the patient's physical status, except the patient! This article is an innovative way of representing ASA physical status to enhance patient involvement and understanding, and to facilitate shared decision making. PMID- 29328745 TI - Airway safety in a patient with submandibular swelling. AB - A fifty-eight year old gentleman (CH) with a five-day history of toothache presented to the emergency department (ED) with increasing pain with associated submandibular swelling over the last 24-hours. He was an unkempt gentleman who had not consulted his general practitioner or dentist in many years, was unaware of any significant past medical history and was not on any regular medication. He was an obese gentleman with a BMI of 56. PMID- 29328746 TI - Operating department practitioners care of the patient with diabetes in the perioperative period. AB - Diabetes mellitus (DM) is a of group metabolic diseases which are defined by hyperglycaemia affecting multiple organs. The condition is found in people of all ages and ethnicities. Diabetes mellitus affects 180 million people worldwide and increasing numbers of patients are presenting with diabetic complications and the need for surgical intervention. This article describes the pathophysiology of DM and the management of the condition, particularly type I and type 2, in the perioperative phase of the surgical patient journey. PMID- 29328747 TI - Critical incident analysis: Equip to avoid failure. AB - This work is set in the context of perioperative practice in difficult airway management. It integrates a root cause analysis and fish bone technique to investigate a critical incident in temporary yet crucial equipment failure. Risk management and incident reporting is analysed alongside human factors in the operating theatre environment. Finally, recommendations for risk reduction, vigilance and checking vital airway equipment are made in anaesthetic practice. PMID- 29328749 TI - Thromboembolic diseases and the use of vena cava filters. AB - Mr GW is a 77-year-old gentleman who is hoping to have a total knee replacement of his left knee. He underwent a knee replacement on the right in 2011 under spinal anaesthetic, where his postoperative period was complicated by a saddle pulmonary embolus (PE). PMID- 29328748 TI - Analysis of neuro-theatre utilisation and reasons for cancellation to improve efficiency and productivity. AB - In neurosurgery, much emphasis has recently been placed on theatre cancellation and time utilization as a key hospital management performance indicator. We sought to evaluate our unit's theatre throughput efficiency and identify the causes of elective surgery cancellations. We retrospectively audited all scheduled elective neurosurgical procedures over a period of nine months. Mean theatre utilization time was 47.0%. The common causes of cancellations were lack of theatre time (32%), non-availability of beds in recovery room (18.6%), and insufficient preoperative patient preparation (5.5%). Inefficiencies were noted in turnover of patients and inaccurate prediction of operative time. Our theatre utilization time is consistent with available literature; however, cancellations of elective surgery waste valuable operative time and resources. The study concludes that a multi-dimensional approach must be taken to improve theatre utilization and reduce cancellation rates. A pre-assessment clinic has been introduced in order to reduce cancellation rates. PMID- 29328750 TI - Adaptation of a tool to assess non-technical skills of scrub practitioners in Denmark. AB - The aim of this study was to adapt the Scottish tool, Scrub Practitioners List of Intraoperative Non-Technical Skills, to Danish organisation and culture. With an explorative and qualitative approach, four group interviews with scrub practitioners, surgeons and anaesthesia staff were conducted. The main differences found were related to communication and teamwork regarding scrub practitioners focus on the team and speaking up. Differences in the non-technical skills described in the behavioural markers are perhaps explained by cultural differences between Scotland and Denmark. A new tool for scrub practitioners in Denmark was adapted. PMID- 29328751 TI - A comparative prospective cohort study comparing physical exam to ultrasound for identifying the cricoid cartilage. AB - Applying cricoid pressure is a common practice when intubating patients thought to be at risk of pulmonary aspiration. Recently, the perceived benefits of applying cricoid pressure have been questioned. Prior research has shown that cricoid pressure is applied incorrectly and that palpation of adjacent anatomy of the cricothyroid membrane is also inaccurate. We compared physical palpation to ultrasound for identifying the location of the cricoid cartilage using a total of 50 assessments. The median distance to target was 10 mm. We concluded that palpation is an inaccurate method to locate the cricoid cartilage in the studied population. PMID- 29328752 TI - Literature review: Awareness of anaesthesia. AB - A review of qualitative literature regarding awareness under general anaesthesia was undertaken, this term being defined as full consciousness during surgery with explicit recall of events. This study was designed to explore perioperative practitioner knowledge, skill base and education on the subject of awareness. It also explores the practitioner role in, looking out for and rectification, their obligations to the patient and their statutory bodies, as well as adherence to standards of conduct, performance and ethics. The article aims to shed light on this phenomenon and to empower a practitioner to act for the benefit of the service user. PMID- 29328753 TI - A critical analysis of the perioperative management of patients with Ehlers Danlos type IV (vascular) syndrome. AB - This article discusses the perioperative care needs of patients with Ehlers Danlos type IV (vascular) syndrome. Ehlers Danlos syndrome (EDS) is a heritable group of connective tissue disorders characterised by varying degrees of tissue, blood vessel and internal organ fragility as well as skin and joint hypermobility (De Paepe and Malfait 2012). PMID- 29328754 TI - Pioneers of pneumonectomy for carcinoma of the lung. AB - The first reports of successful pneumonectomy for carcinoma. PMID- 29328755 TI - NICE guidance on interventional procedures: the perspectives of a new Clinical Advisor. AB - A commitment to delivering the very best care to patients is central to the work of all clinicians. The introduction of new interventional procedures to clinical practice is essential to improve patient care. Yet, history tells us that when interventional procedures are introduced without due regard to their efficacy and safety there can be significant adverse consequences for the patient (DH 2001). Nearly three decades ago the concept of Clinical Governance was introduced to the NHS to address these concerns. The aim was to allow continuous improvement in the quality of services while safeguarding patient safety and ensuring high standards of care (Scally and Donaldson 1998). PMID- 29328756 TI - Review of practice: Facilitating normality at caesarean section. AB - Expectant women often write detailed birth plans outlining their preferences for the birth of their baby. These plans are pushed aside when a caesarean is deemed necessary, being replaced with medical decisions in a clinical setting. In the busiest maternity unit in the South West, our team are trying to change this attitude, encompassing many of the key points of 'normal' birth choices that are important to mothers during caesarean section, without compromising clinical care. PMID- 29328758 TI - Ergonomics: an important factor in the operating room. AB - There is a mutual interaction between health and the workplace. Health affects the capacity to work and working conditions affect a worker's health. Operating rooms (ORs) are stressful, complex settings in which there are ergonomic risk factors, such as lifting/moving heavy equipment. Work-related musculoskeletal disorders (WRMSDs) can arise due to unhealthy ergonomic conditions. Our study showed that nurses had been absent from work and/or retired early due to WRMSDs. Good ergonomic conditions in ORs increase nurses' occupational health and safety, their job satisfaction and performance. These factors contribute to patient care outcomes in a positive way. PMID- 29328757 TI - The pathophysiology of coronary heart disease from a student's perspective. AB - It is estimated that 2.3 million people in the UK are living with coronary heart disease (CHD) (ONS 2014a). It is therefore important to have a deeper understanding of the pathophysiology of the condition and an awareness of the complex interplay of contributory factors. Written from the perspective of a student ODP, this article investigates the aetiology, presentation and progression of the disease, and puts CHD into the context of the emerging anaesthetic practitioner's practice. PMID- 29328759 TI - Astley Cooper's ligation of the abdominal aorta. AB - I have to confess that Sir Astley Cooper (1768-1841), of Guy's Hospital, is high on my list of surgical heroes. Indeed, I chose his remarkable and successful operation of amputation at the hip joint as my first article in this series. Among his other astonishing firsts must surely be his ligation of the abdominal aorta for a patient with a leaking iliac aneurysm. PMID- 29328760 TI - Leadership: briefing and debriefing in the operating room. AB - Steelman (2014) stated that the concept of briefing and debriefing used in operating theatres derived from the airline industry in the 1970s. There had been a series of devastating air crashes and the airline industry had come under severe public scrutiny. Investigations identified that, while the crews operating these aircrafts were very skilled and knowledgeable, they lacked competence in their ability to perform as part of a team. PMID- 29328761 TI - Pancreatic cancer: a symptomless killer. AB - Pancreatic cancer is the fifth most common cause of cancer death in the UK. This disease often remains undiagnosed until it is at a late stage, resulting in the majority of tumours being unsuitable for surgical resection. When a diagnosis of pancreatic cancer is confirmed, early input from the multi-disciplinary team (MDT) is vital. Due to the poor prognosis, the screening and treatment of pancreatic cancer remains a considerable challenge for medicine in the 21st century. PMID- 29328762 TI - Patients' experiences with at-home preoperative skin disinfection before elective hip replacement surgery. AB - The aim of the study was to describe patients' experiences with preoperative skin disinfection carried out in their home before elective hip replacement surgery with the aim of lowering the microbial burden and avoiding surgical site infections. The literature was reviewed for relevant studies. Optimal preparations before surgery depend on patients being able to assimilate preoperative information and instructions. The study was based on 14 interviews with patients who had undergone elective hip replacement surgery. Data were analysed with qualitative manifest content analysis according to Graneheim and Lundman (2004). The main categories of findings were: patients' experience of obstacles and limitations, the importance of supportive surroundings, and personal resources as strength when performing preoperative skin disinfection. The findings of this study agree with earlier studies showing a lack of compliance to preoperative skin disinfection. The findings also suggest reasons for non-compliance. Preoperative skin disinfection involves many important steps that need to be accomplished to ensure the maximum effect on microbial burden on skin surface. These steps can be difficult for some patient groups. Perioperative dialogue is one way to identify patients' individual needs and to help patients participate in the process. The study concludes that patients who carried out skin disinfection at home before surgery have a great responsibility to prepare themselves. The challenge for perioperative nurses who work with preoperative information is to identify and individually guide those patients who need extended support so that all patients with elective hip replacement surgery receive the same quality of care. Further research should focus on how caregivers discover individuals with extended needs and on identifying the kind of support that is effective to achieve optimal conditions for hip replacement surgery. PMID- 29328763 TI - OSA and the bariatric patient. AB - Mrs NH is a 49-year-old lady who presented for assessment prior to weight reduction surgery. PMID- 29328764 TI - Conditional Value of Raising Positive End-Expiratory Pressure to Counter Vigorous Breathing Efforts in Injured Lungs. PMID- 29328765 TI - Implementing an integrated in-situ coaching, observational audit, and story telling intervention to support safe surgery. AB - This article describes an intervention that combined in-situ coaching, observational audits and story-telling to educate theatre teams at University College London Hospitals about the Five steps to safer surgery (NPSA 2010). Our philosophy was to educate theatre teams about 'what goes right' (good catches, exemplary leadership etc) as well as 'what could be improved'. Results showed improvements on 'behavioural reliability' metrics, a 68% increase in near miss reporting and a reduction in surgical harm incidents. PMID- 29328766 TI - Safer anaesthetic rooms: Human factors/ergonomics analysis of work practices. AB - The aim of this study was to analyse the design of anaesthetic rooms using human factors and ergonomics (HFE) methods. The methods used were hierarchical task analysis, link analysis and anthropometry. The study found several latent design errors which negatively affected drug and patient preparation tasks. Recommendations include anaesthetic room layout design modifications and system level changes. HFE principles provide generic recommendations but specific design details may not be generalizable. Further research is needed to explore the implementation of system changes. PMID- 29328767 TI - Culture, silence and voice: The implications for patient safety in the operating theatre. AB - Team culture is an important antecedent to safety behaviours such as speaking up. A positive safety culture in the operating theatre has been linked to fewer adverse events. Psychological safety, a component of safety culture, is the belief that the team is safe to take risks such as raising concerns. Power dynamics can influence active speaking up behaviour or 'voice'. When theatre team members chose to remain silent rather than voice concerns this can be a protective or defensive strategy rather than passive inactivity. PMID- 29328768 TI - Human factors and non-technical skills: Teamwork. AB - Making mistakes is part of being human and human error is normal in all areas of life (Bromiley and Mitchell 2009). In some contexts this is of little consequence, but in environments where human safety and well-being are at stake it is vital that such error is minimised. The operating theatre is one such safety critical environment. Research suggests, however, that certain factors predispose to human error. Some or all of these factors may be present in the operating theatre and, therefore, have the potential to compromise patient safety. PMID- 29328769 TI - An interview with Martin Bromiley. AB - Many of you will have heard of Martin Bromiley and many will have met him over the years since he became a prominent figure within the environs of perioperative care. Martin came into our lives as a result of the tragic death of his wife Elaine Bromiley a 37 year old mother of two who was admitted for an elective endoscopic sinus surgery. Elaine suffered major complications during the induction of general anaesthesia that resulted in her death due to hypoxic brain damage. PMID- 29328770 TI - West Midlands Major Trauma Centre Theatre Practitioner Collaborative. AB - The following article highlights the establishment of the West Midlands Major Trauma Centres (MTC) in April 2012 and specifically the West Midlands Major Trauma Centre Theatre Practitioner Collaborative in June 2013. The article looks at the involvement of theatre practitioners working as an integral part of the emergency department and supporting anaesthetists when attending alerts. There is a summary of clinical responsibilities, mentorship opportunities and the educational programme associated with the role. The MTC collaborative ensures that there is support for individual centres with regular meetings covering clinical and educational issues as well as conducting cross site skill programmes. The collaborative are working toward a formal approach to a higher educational institution, to consider establishing a post graduate training module and to prepare theatre practitioners for the role in the emergency department. PMID- 29328771 TI - An exploration of the factors that influence the successful implementation of the World Health Organization Surgical Safety Checklist. AB - This study presents an exploration of the factors which influence the successful implementation of the WHO Surgical Safety Checklist. A mixed methodological approach using a questionnaire was sent to 348 healthcare professionals in a single NHS trust who use the WHO checklist. 103 questionnaires were returned; five were incomplete and discarded. Data was analysed from 98 questionnaires. Results were evaluated alongside recommendations from a previous audit that took place in this trust in 2013. 63% of surgeons and 54% of anaesthetists within the trust remain untrained as regards the surgical safety checklist. Sign out was the poorest performing component; time out also needed improvement. The biggest obstacle in successful implementation was found to be disengagement of the surgical team. Simulation and team training can enhance non-technical skills, improving communication between staff. The study concludes that differing staff perceptions were found to create barriers to successful implementation of the checklist. Training of all staff is necessary for effective communication within the operating theatre. PMID- 29328772 TI - Interprofessional simulation training for perioperative management team development and patient safety. AB - Establishment of a perioperative management team construct including anaesthesiologists, surgeons, nurses, and other medical staff is essential to optimize safe surgical care. Simulation based education and training provides a unique and effective approach to development of competency and application of relevant technical and non-technical perioperative professional skills such as meta-cognitive ability, caution, shared decision-making, leadership and communication. Development of high functioning perioperative teams can be accomplished through simulation based training. PMID- 29328773 TI - Simple foot holder saves your theatre practitioner's back: a technical tip. AB - We provide a simple technique for foot positioning during preoperative skin preparation. Prone headrest made of gel polymer is used to support the patient's leg to keep the foot up. This will protect your operating theatre practitioner's back avoiding any mechanical back strain. It will also save money by preventing sickness and reducing workplace litigation from back injuries. PMID- 29328774 TI - The first elective splenectomy. AB - Although there had been rare reports in the past of a surgeon removing a prolapsed spleen dangling out of a traumatically lacerated abdomen, with recovery of the patient, a successful deliberate laparotomy for a pathologically enlarged spleen was, as you may imagine, a much more recent event, with all the advantages of antiseptic surgery and anaesthesia. In fact, the first such operation was actually performed with the mistaken diagnosis of a large ovarian mass. PMID- 29328775 TI - Breast Specimen Processing and Reporting With an Emphasis on Margin Evaluation: A College of American Pathologists Survey of 866 Laboratories. AB - CONTEXT: - The College of American Pathologists (CAP) developed protocols for reporting pathologic characteristics of breast cancer specimens, including margin status. The Society of Surgical Oncology (SSO) and the American Society for Radiation Oncology (ASTRO) published treatment guidelines regarding margins in patients with invasive cancer; and SSO, ASTRO, and the American Society of Clinical Oncology (ASCO) recently published guidelines for patients with ductal carcinoma in situ. OBJECTIVE: - To assess current practices among pathologists with regard to the processing/reporting of breast specimens, assess compliance with CAP cancer protocols, and assess alignment with SSO/ASTRO and SSO/ASTRO/ASCO guidelines. DESIGN: - A survey concerning breast specimen processing/reporting was distributed to pathologists enrolled in the CAP Performance Improvement Program in Surgical Pathology. RESULTS: - Ninety-four percent (716 of 764 respondents) and 91% (699 of 769 respondents) define positive margins as "tumor on ink" for invasive cancer and ductal carcinoma in situ, respectively, in compliance with CAP cancer protocols and with SSO/ASTRO and SSO/ASTRO/ASCO guidelines. Of 791 respondents who provided details regarding methods for margin evaluation, 608 (77%) exclusively examine perpendicular margins, facilitating guideline compliance. However, 183 of 791 respondents (23%) examine en face margins in at least a subset of specimens, which may preclude guideline compliance in some cases. When separate cavity (shave) margins are examined, while 517 of 586 respondents (88%) ink these specimens, 69 of 586 (12%) do not, and this may also preclude guideline compliance in some cases. CONCLUSIONS: - A substantial proportion of survey participants report margin status for breast cancer specimens in a manner consistent with CAP cancer protocols, and in alignment with SSO/ASTRO and SSO/ASTRO/ASCO guidelines. However, there are opportunities for some laboratories to modify procedures in order to facilitate more complete adherence to guidelines. PMID- 29328776 TI - More Than a Decade of Molecular Diagnostic Cytopathology Leading Diagnostic and Therapeutic Decision-Making. PMID- 29328777 TI - Systematic review of developmental care interventions in the neonatal intensive care unit since 2006. AB - Intervention studies designed to improve neurodevelopmental outcomes of premature infants in the neonatal intensive care unit (NICU) were evaluated in this systematic review to analyze research methods, to illuminate the effectiveness of interventions, and to make recommendations for future research. Google Scholar, the Cumulative Index of Nursing and Applied Health Literature, PubMed, and Cochrane databases were investigated to identify experimental and quasi experimental interventional studies in peer-reviewed journals. Each study was assessed in the areas of sample, design, interventional strategies, threats to validity, and outcomes. Nineteen articles were reviewed with a variety of clustered and individual strategies identified to improve neurodevelopmental outcomes of premature infants in the NICU. Developmental care in the NICU appears to have some positive effects on the neurodevelopment of preterm infants. However, there were a number of limitations identified that threaten the validity of the included studies. Going forward, components of developmental care should be operationalized more consistently, greater effort should be put into ensuring treatment fidelity, and electroencephalogram data should be collected in conjunction with behavioral outcome measures. PMID- 29328778 TI - Engineering Approaches to Study Cellular Decision Making. AB - In their native environment, cells are immersed in a complex milieu of biochemical and biophysical cues. These cues may include growth factors, the extracellular matrix, cell-cell contacts, stiffness, and topography, and they are responsible for regulating cellular behaviors such as adhesion, proliferation, migration, apoptosis, and differentiation. The decision-making process used to convert these extracellular inputs into actions is highly complex and sensitive to changes both in the type of individual cue (e.g., growth factor dose/level, timing) and in how these individual cues are combined (e.g., homotypic/heterotypic combinations). In this review, we highlight recent advances in the development of engineering-based approaches to study the cellular decision making process. Specifically, we discuss the use of biomaterial platforms that enable controlled and tailored delivery of individual and combined cues, as well as the application of computational modeling to analyses of the complex cellular decision-making networks. PMID- 29328779 TI - Transforming the Treatment of Schizophrenia in the United States: The RAISE Initiative. AB - The schizophrenia spectrum disorders are neurodevelopmental illnesses with a lifetime prevalence near 1%, producing extensive functional impairment and low expectations for recovery. Until recently, treatment in the United States has largely attempted to stabilize individuals with chronic schizophrenia. The identification and promotion of evidence-based practices for schizophrenia via the Patient Outcomes Research Team, combined with international studies supporting the value of early intervention, provided the foundation for the Recovery After an Initial Schizophrenia Episode (RAISE) project. The RAISE studies further supported the value of reducing the duration of untreated psychosis and providing a multi-element treatment called coordinated specialty care (CSC) to improve outcomes for patients in usual treatment settings. Although CSC programs have proliferated rapidly in the United States, many challenges remain in the treatment and recovery of individuals with schizophrenia in the aftermath of RAISE. PMID- 29328780 TI - Risk Factors for Depression: An Autobiographical Review. AB - I have been given a priceless opportunity to reflect on my career in the remarkably productive field of risk factors for depression. Psychological research on depression exploded in the early years of my work. I try to give an account of the choices and challenges, and reflect on the influences, some calculated and some serendipitous, that determined the paths I have followed. I focus mostly on the robust depression risk factors that have influenced my research, including dysfunctional cognitions, stressful life events and circumstances, parental depression, interpersonal dysfunction, and being female, and I cover some of what I did but also the influential work of others. This is a selective review of depression research in the past 40 or so years, noting some of the big developments that set the stage for the remarkable activity that continues today. In the conclusion, there is a brief statement of aspirations for future developments in our field. PMID- 29328781 TI - Normalization of Deviation: Quotation Error in Human Factors. AB - Objective The objective of this paper is to examine quotation error in human factors. Background Science progresses through building on the work of previous research. This requires accurate quotation. Quotation error has a number of adverse consequences: loss of credibility, loss of confidence in the journal, and a flawed basis for academic debate and scientific progress. Quotation error has been observed in a number of domains, including marine biology and medicine, but there has been little or no previous study of this form of error in human factors, a domain that specializes in the causes and management of error. Methods A study was conducted examining quotation accuracy of 187 extracts from 118 published articles that cited a control article (Vaughan's 1996 book: The Challenger Launch Decision: Risky Technology, Culture, and Deviance at NASA). Results Of extracts studied, 12.8% ( n = 24) were classed as inaccurate, with 87.2% ( n = 163) being classed as accurate. A second dimension of agreement was examined with 96.3% ( n = 180) agreeing with the control article and only 3.7% ( n = 7) disagreeing. The categories of accuracy and agreement form a two by two matrix. Conclusion Rather than simply blaming individuals for quotation error, systemic factors should also be considered. Vaughan's theory, normalization of deviance, is one systemic theory that can account for quotation error. Application Quotation error is occurring in human factors and should receive more attention. According to Vaughan's theory, the normal everyday systems that promote scholarship may also allow mistakes, mishaps, and quotation error to occur. PMID- 29328782 TI - The role of nivolumab in melanoma. AB - The incidence of melanoma continues to rise worldwide. Prior to 2010, there had been no progress in the treatment of advanced melanoma in living memory. Since then, immunotherapy has become a standard of care in the treatment of advanced melanoma. Nivolumab is a fully human monoclonal antibody against PD-1, which is a negative regulatory checkpoint in the T cells. The clinical benefit of nivolumab as a single agent is well established, with response rates of >=40%, durable responses and a favorable tolerability profile. The combination of nivolumab and ipilimumab has also become a standard of care and the role of nivolumab in the adjuvant setting for high-risk patients has been recently confirmed. PMID- 29328785 TI - Immune Responses in the Liver. AB - The liver is a key, frontline immune tissue. Ideally positioned to detect pathogens entering the body via the gut, the liver appears designed to detect, capture, and clear bacteria, viruses, and macromolecules. Containing the largest collection of phagocytic cells in the body, this organ is an important barrier between us and the outside world. Importantly, as portal blood also transports a large number of foreign but harmless molecules (e.g., food antigens), the liver's default immune status is anti-inflammatory or immunotolerant; however, under appropriate conditions, the liver is able to mount a rapid and robust immune response. This balance between immunity and tolerance is essential to liver function. Excessive inflammation in the absence of infection leads to sterile liver injury, tissue damage, and remodeling; insufficient immunity allows for chronic infection and cancer. Dynamic interactions between the numerous populations of immune cells in the liver are key to maintaining this balance and overall tissue health. PMID- 29328786 TI - Connections Between Metabolism and Epigenetics in Programming Cellular Differentiation. AB - Researchers are intensifying efforts to understand the mechanisms by which changes in metabolic states influence differentiation programs. An emerging objective is to define how fluctuations in metabolites influence the epigenetic states that contribute to differentiation programs. This is because metabolites such as S-adenosylmethionine, acetyl-CoA, alpha-ketoglutarate, 2 hydroxyglutarate, and butyrate are donors, substrates, cofactors, and antagonists for the activities of epigenetic-modifying complexes and for epigenetic modifications. We discuss this topic from the perspective of specialized CD4+ T cells as well as effector and memory T cell differentiation programs. We also highlight findings from embryonic stem cells that give mechanistic insight into how nutrients processed through pathways such as glycolysis, glutaminolysis, and one-carbon metabolism regulate metabolite levels to influence epigenetic events and discuss similar mechanistic principles in T cells. Finally, we highlight how dysregulated environments, such as the tumor microenvironment, might alter programming events. PMID- 29328784 TI - DNA-Encoded Chemical Libraries: A Selection System Based on Endowing Organic Compounds with Amplifiable Information. AB - The discovery of organic ligands that bind specifically to proteins is a central problem in chemistry, biology, and the biomedical sciences. The encoding of individual organic molecules with distinctive DNA tags, serving as amplifiable identification bar codes, allows the construction and screening of combinatorial libraries of unprecedented size, thus facilitating the discovery of ligands to many different protein targets. Fundamentally, one links powers of genetics and chemical synthesis. After the initial description of DNA-encoded chemical libraries in 1992, several experimental embodiments of the technology have been reduced to practice. This review provides a historical account of important milestones in the development of DNA-encoded chemical libraries, a survey of relevant ongoing research activities, and a glimpse into the future. PMID- 29328787 TI - Immune Responses to Retroviruses. AB - Retroviruses are genome invaders that have shared a long history of coevolution with vertebrates and their immune system. Found endogenously in genomes as traces of past invasions, retroviruses are also considerable threats to human health when they exist as exogenous viruses such as HIV. The immune response to retroviruses is engaged by germline-encoded sensors of innate immunity that recognize viral components and damage induced by the infection. This response develops with the induction of antiviral effectors and launching of the clonal adaptive immune response, which can contribute to protective immunity. However, retroviruses efficiently evade the immune response, owing to their rapid evolution. The failure of specialized immune cells to respond, a form of neglect, may also contribute to inadequate antiretroviral immune responses. Here, we discuss the mechanisms by which immune responses to retroviruses are mounted at the molecular, cellular, and organismal levels. We also discuss how intrinsic, innate, and adaptive immunity may cooperate or conflict during the generation of immune responses. PMID- 29328783 TI - Signaling to and from the RNA Polymerase III Transcription and Processing Machinery. AB - RNA polymerase (Pol) III has a specialized role in transcribing the most abundant RNAs in eukaryotic cells, transfer RNAs (tRNAs), along with other ubiquitous small noncoding RNAs, many of which have functions related to the ribosome and protein synthesis. The high energetic cost of producing these RNAs and their central role in protein synthesis underlie the robust regulation of Pol III transcription in response to nutrients and stress by growth regulatory pathways. Downstream of Pol III, signaling impacts posttranscriptional processes affecting tRNA function in translation and tRNA cleavage into smaller fragments that are increasingly attributed with novel cellular activities. In this review, we consider how nutrients and stress control Pol III transcription via its factors and its negative regulator, Maf1. We highlight recent work showing that the composition of the tRNA population and the function of individual tRNAs is dynamically controlled and that unrestrained Pol III transcription can reprogram central metabolic pathways. PMID- 29328789 TI - From working hours' restrictions to professional identity: The development of the surgical care practitioner role. AB - This article describes how restrictions to working hours have encouraged the expansion of the surgical care practitioner role. It also discusses how this role has evolved and the identity that has been formed in the context of interprofessional surgical education. PMID- 29328788 TI - The role of elastomeric pumps in postoperative analgesia in orthopaedics and factors affecting their flow rate. AB - Elastomeric pumps are mechanical devices composed of an elastomeric balloon reservoir into which the drug to be infused is stored, a protective casing (used by some manufacturers), a flow controller and a wound catheter. In orthopaedics they are used to provide continuous local infiltration analgesia. In this way patients rely less on other routes of analgesia and thus avoid their systemic side effects. Studies have shown good response to analgesia with these pumps for the first 24 hours but their benefit is not as clear at 48 and 72 hours. There are numerous factors that affect the flow rate of elastomeric pumps. Some are inherent to all elastomeric pumps such as: the pressure exerted by the elastomeric balloon, catheter size, the vertical height of the pump in relation to the wound, viscosity and partial filling. There are also other factors which vary according to the manufacturer such as: the optimal temperature to obtain the desired flow rate as this directly affects viscosity, the dialysate that the analgesic drug is mixed with (ie normal saline or 5% dextrose), and the storage conditions of the fluid to be infused. It is thus essential to follow the clinical guidelines provided by the manufacturer in order to obtain the desired flow rate. PMID- 29328790 TI - Hospital stay and blood transfusion in elderly patients with hip fractures. AB - Neck of femur (NOF) fractures in elderly patients are the most frequent condition which an orthopaedic surgeon confronts nowadays. The incidence of these fractures is increasing as the population continues to age. These patients absorb the majority of the resources in the hospitals, as their healthcare demands are increased. This study included all patients who were admitted to our hospital between January and October 2015 following a neck of femur fracture. A total of 336 patients were included (72.3% female). We gathered demographic and hospitalisation data from patients' files. Haemoglobin (Hb) levels at admission and transfusion data were also collected. Male patients appeared to have a relatively higher risk of mortality than females (p=0.01). Patients with high ASA grade (IV) had a higher mortality rate (p=0.01). Age, delay of surgery, type of surgery, AMTS and Hb at admission and type of fracture on the other hand did not have a significant impact on mortality (p>0.05). Patients who needed transfusion during their hospitalisation had significantly lower Hb at admission (p=0.044). More specifically, patients who had Hb<110 at admission were more likely to need transfusion (p<0.001). Hospitalisation of patients who needed transfusion was significantly prolonged. In our effort to deliver the best services to our patients, this study considers transfusing the elderly patients with low Hb at admission (Hb<110) pre-operatively, with a view to increasing their reserves for the operation and potentially speeding up the rehabilitation process and decreasing their hospitalisation time. PMID- 29328791 TI - How noisy are total knee and hip replacements? AB - Orthopaedic theatre can be noisy. Fifty percent of orthopaedic theatre staff have features of noise-induced hearing loss (NIHL). In this study, decibel (dB) levels were recorded in 17 total knee replacements (TKRs) and 11 total hip replacements (THRs). Noise levels reached 105.6dB(A) using a hammer and 97.9dB(A) with an oscillating saw. Exposure to levels above 90dB (which occurred in every case) even for short time periods is proven to cause irreversible loss of hearing. Tools used in orthopaedic theatre produce impulse noises that can cause NIHL. Further investigation is required. PMID- 29328792 TI - Identification and management of nontraumatic splenic rupture. AB - A 43-year old previously fit and well gentleman presented to the emergency department (ED) with a two day history of worsening epigastric pain. He had had coryzal symptoms the preceding week but had no other past medical history. He was haemodynamically stable at presentation and an ultrasound scan (US) performed in the ED could not definitively rule out intra-abdominal fluid. In view of his tender abdomen on examination and a haemoglobin level of 9.2g/dL, a computerised tomography (CT) scan was performed and revealed extensive high-density fluid within the peritoneal cavity, raising the possibility of a concealed bleed but no obvious source was identified by the scan. PMID- 29328793 TI - Novel Molecular and Phenotypic Insights into Congenital Lung Malformations. AB - RATIONALE: Disruption of normal pulmonary development is a leading cause of morbidity and mortality in infants. Congenital lung malformations are a unique model to study the molecular pathogenesis of isolated structural birth defects, as they are often surgically resected. OBJECTIVES: To provide insight into the molecular pathogenesis of congenital lung malformations through analysis of cell type and gene expression changes in these lesions. METHODS: Clinical data, and lung tissue for DNA, RNA, and histology, were obtained from 58 infants undergoing surgical resection of a congenital lung lesion. Transcriptome-wide gene expression analysis was performed on paired affected and unaffected samples from a subset of infants (n = 14). A three-dimensional organoid culture model was used to assess isolated congenital lung malformation epithelium (n = 3). MEASUREMENTS AND MAIN RESULTS: Congenital lung lesions express higher levels of airway epithelial related genes, and dysregulated expression of genes related to the Ras and PI3K-AKT-mTOR (phosphatidylinositol 3-kinase-AKT-mammalian target of rapamycin) signaling pathways. Immunofluorescence confirmed differentiated airway epithelial cell types throughout all major subtypes of congenital lung lesions, and three-dimensional cell culture demonstrated a cell-autonomous defect in the epithelium of these lesions. CONCLUSIONS: This study provides the first comprehensive analysis of the congenital lung malformation transcriptome and suggests that disruptions in Ras or PI3K-AKT-mTOR signaling may contribute to the pathology through an epithelial cell-autonomous defect. PMID- 29328794 TI - Corneal abrasion following anaesthesia for non-ocular surgical procedures: A case controlled study. AB - The aim of this study was to identify risk factors associated with perioperative corneal abrasion at a single hospital in Mineola, New York (United States). A chart review was conducted of patients with perioperative corneal abrasion following non-ocular surgery and age-matched controls between June 2011 and November 2013. An age-stratified logistic regression model evaluated the association between corneal abrasion and potentially predisposing variables. The adjusted odds of a corneal abrasion occurring were 4.6 times greater for patients having surgery for >= 3 hours (p=0.001) and 3.6 times greater for patients with pre-existing ocular disease (p=0.02). Gender, diabetes status, surgical procedure or position were not found to be associated with the occurrence of a corneal abrasion. Corneal abrasions were associated with longer procedures and history of pre-existing ocular disease. No significant association between body positioning or surgical site and perioperative corneal abrasion was found. The study concludes that a longer duration of surgical procedure and pre-existing ocular disease are risk factors for perioperative corneal abrasion. PMID- 29328795 TI - Emerging/changing fashion trends and their impact on conduct of anaesthesia. AB - One of the innate features of human behaviour is to enhance personal image in order to look different from the rest of the crowd and to satisfy a need for individualism. People use different dress codes, body makeup and artificial gadgets to improve their personal and physical appearance. The main motive behind all these efforts is personal satisfaction, to appear attractive to others and to overcome phobias and complexes. PMID- 29328796 TI - eAppendicitis: Diagnostic uncertainty in appendicitis and the role of ehealth - does IT help? AB - The availability of medical information on the World Wide Web has grown as information technology has become more accessible. Patients seeking online information may be able to selfselect conditions having been adequately informed. This study evaluates the effect of eHealth information on those presenting to hospital with a suspected appendicitis and its effect on their management and clinical outcome. Patients who had performed online reading were more likely to go to theatre but were less likely to have a confirmed histological diagnosis of appendicitis. PMID- 29328797 TI - Does a dedicated orthopaedic day surgery list improve delivery of trauma services? AB - Our aim was to implement a 23-hour pathway for uncomplicated trauma to overcome delays and improve efficiency. A retrospective review of a single surgeon series of 105 consecutive patients operated on between July 2010 and July 2011 was performed. With recently revised trauma tariffs, we believe an efficient day surgery trauma list improves theatre utilisation, reduces inpatient bed demands, prioritises major and sub-specialist trauma and delivers patient satisfaction. PMID- 29328798 TI - The early days of surgery for cardiac injuries. AB - Over many centuries, wounds of the heart were thought to be fatal. With the introduction of first anaesthesia and then antiseptic surgery in the second half of the 19th century, there was an explosion in surgery; the abdominal cavity, the chest, the skull were explored and operated upon and yet the heart was considered to be a 'no go' region of the body. One of the greatest and most innovative surgeons of that time, Theodor Billroth of Vienna, who must be considered one of the fathers of modern surgery, with pioneering work on many parts of the body, wrote: 'The surgeon who attempts to suture a wound of the heart should lose the respect of his colleagues'. PMID- 29328800 TI - The human element of giving and receiving feedback. AB - Human factors is the scientific subject that concerns the understanding of interactions amongst humans, it is what affects behaviour and performance in the work place (Ives and Hillier 2015), particularly in high risk areas such as the aviation industry and healthcare. In this opinion piece it will be limited to the healthcare profession. PMID- 29328799 TI - Clinical supervision: beyond the first flush. AB - Nearly two decades ago, Smith (1999) recognised that little had been published on the implementation and usefulness of clinical supervision in the operating theatre. Accordingly, she conducted a small action research project and reported its findings. These were deemed to have been in a positive direction and a number of benefits were listed, essentially clustered around better communication between operating department practitioners (ODPs). Prophetically, however, she thought 'it would be interesting to observe if this enthusiasm and motivation continues after the project is completed' (p308). Two years later, Smith (2001) lamented that clinical supervision was no longer practised in theatres and that its introduction in other areas had 'met with little success' (p436). She believed the reasons to be the 'culture of the NHS, the negative attitudes by enough members of staff to have an impact and hidden agendas and micro-politics'. PMID- 29328801 TI - Preceptorship for practitioners new to theatre departments. AB - The aim of this study was to identify the influences and constraints of a preceptorship programme for perioperative practitioners and to assess the potential impact on the learning process. The programme takes into account the values of the NHS trust for which I work: to care about our patients, quality, the future, serving local people, improvement and being stronger together. This foundation NHS trust has a vision for the future that puts the patient at the heart of everything it does and is guided by the principles and values about which the people care deeply. PMID- 29328802 TI - Case study: Laparoscopic appendicectomy requirements and human factors surrounding emergency care. AB - The purpose of this case study is to inform practitioners of the requirements for non-scheduled surgery and the legal, professional and ethical issues surrounding emergencies. Areas for learning include the surgical requirements for appendectomy, evaluation of the differences between scheduled and unscheduled care, and consideration of the vital role that human factors play in emergency situations. PMID- 29328803 TI - Parent pagers: Improving patient experience and efficiency in paediatric PACU. AB - A quality improvement initiative undertaken by the paediatric recovery team at the Leeds Children's Hospital sought to improve patient experience and efficiency by implementing an electronic pager system to contact parents/carers following their child's surgery. PMID- 29328804 TI - Replacement of the nose. AB - Today's reconstructive surgeons may not be aware that replacement of the nose was carried out successfully as long ago as the 16th century by the surgeon Gaspar Taliacozzo of Bologna, Italy, who published a detailed and illustrated account of his operation in 1597. This procedure comprised raising a flap of skin from the upper arm to reconstruct the nose. The arm was kept in place, with the hand resting on the patient's head, using elaborate splinting until adherence had taken place; the flap was then detached from the donor arm. The operation was seldom used following this success, surgeons relying on replacement of the lost nose with an artificial organ fashioned from wood or silver and strapped over the defect. PMID- 29328805 TI - Recent Advances in the Application of Cold Plasma Technology in Foods. AB - The past decade has seen a surge in the scientific literature investigating the potential food-related applications of plasma. A multidisciplinary scientific effort has started to demonstrate process efficacy for a range of plasma applications, including antimicrobial, pesticidal, food functionalization, and waste treatment. Insights into the interactions of plasma species with food and the mechanisms of action are also emerging. This review examines the current status of cold plasma technology within the food sector with a particular emphasis on emerging applications. Opportunities and current challenges that need to be addressed for successful adoption of the approach by industry are detailed. PMID- 29328806 TI - Tailoring Delivery System Functionality Using Microfluidics. AB - Various methods are currently used by the food industry to investigate and prepare emulsions, encapsulates, and other structures. However, these techniques do not allow accurate control over processing variables, which can negatively impact the resultant product properties. In this context, microfluidic technology has been proposed as a powerful tool for the development of innovative food structures, given its use of small amounts of fluids and high reproducibility, resulting in monodisperse droplets and particles. These benefits prove useful when a researcher is interested in investigating the fundamental effects of specific variables while keeping the others under precise control. This review presents an overview of the use of microfluidic devices as technological tools for the preparation of innovative food products and discusses their potential for the development of tailored delivery systems. PMID- 29328807 TI - Conversion of Agricultural Streams and Food-Processing By-Products to Value-Added Compounds Using Filamentous Fungi. AB - The design of new food products and increased agricultural activities have produced a diversity of waste streams or by-products that contain a high load of organic matter. The underutilization of these streams presents a serious threat to the environment and to the financial viability of the agricultural sector and the food industry. Oleaginous microorganisms, such as yeast and microalgae, have been used to convert the organic matter present in many agricultural waste streams into an oil-rich biomass. Filamentous fungi are promising oleaginous microorganisms because of their high lipid accumulation potential and simple biomass recovery, the latter being related to their pellet-like growth morphology in submerged cultivation. This review highlights the use of oleaginous filamentous fungi to convert food by-products into value-added components, including the effect of cultivation conditions on biomass yield and composition. Special attention is given to downstream processing for the commercial production of fungal oil. Also discussed are innovative techniques to optimize the biomass oil yield and to minimize the challenges associated with biomass harvesting and oil extraction at industrial scale. PMID- 29328808 TI - Effective Prevention of Oxidative Deterioration of Fish Oil: Focus on Flavor Deterioration. AB - Docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), both abundant in fish oil, are known to have significant biochemical and physiological effects primarily linked to the improvement of human health, especially cardiovascular and brain health. However, the incorporation of fish oil into foods and beverages is often challenging, as fish oil is very easily oxidized and can cause undesirable flavors. This review discusses this rapid formation of the fishy and metallic off-flavors, focusing especially on an early stage of fish oil oxidation. Although oxidative stability and quality of commercialized fish oil have improved over the past few years, there is a still a problem with its application: Flavor deterioration can be found even at very low oxidation levels. This review also notes the effective way to inhibit the formation of the volatile compounds responsible for the flavor deterioration. PMID- 29328809 TI - Methods for the Control of Foodborne Pathogens in Low-Moisture Foods. AB - Low-moisture foods (LMFs) have been defined as those food products with a water activity (aw) less than 0.85 and are generally considered less susceptible to microbial spoilage and the growth of foodborne pathogens. However, in recent years, outbreaks linked to LMFs have increased, with Salmonella spp., Bacillus cereus, Cronobacter sakazakii, Clostridium spp., Escherichia coli O157:H7, non O157 E. coli, and Staphylococcus aureus being the principal pathogens involved. Because of the new concerns raised as a result of recent outbreaks, new approaches need to be developed to control foodborne pathogens in LMFs. This review summarizes the recent research on novel inactivation methods suitable for use on LMFs. Among the methods discussed are the nonthermal inactivation methods as well as other novel methods such as radio-frequency and microwave heating. Additional research is needed to evaluate older technologies and develop new technologies, either alone or in combination, to understand the mechanisms of inactivation. PMID- 29328810 TI - Shelf Life of Food Products: From Open Labeling to Real-Time Measurements. AB - The labels currently used on food and beverage products only provide consumers with a rough guide to their expected shelf lives because they assume that a product only experiences a limited range of predefined handling and storage conditions. These static labels do not take into consideration conditions that might shorten a product's shelf life (such as temperature abuse), which can lead to problems associated with food safety and waste. Advances in shelf-life estimation have the potential to improve the safety, reliability, and sustainability of the food supply. Selection of appropriate kinetic models and data-analysis techniques is essential to predict shelf life, to account for variability in environmental conditions, and to allow real-time monitoring. Novel analytical tools to determine safety and quality attributes in situ coupled with modern tracking technologies and appropriate predictive tools have the potential to provide accurate estimations of the remaining shelf life of a food product in real time. This review summarizes the necessary steps to attain a transition from open labeling to real-time shelf-life measurements. PMID- 29328811 TI - The healthcare team's perception of the role of the perioperative nurse: A qualitative study. AB - The surgical process requires the coordination of a number of professionals who understand their own roles and responsibilities, as well as those of the team. In the perioperative setting, expectations are established around behaviors and competencies of every team member. These expectations are influenced by knowledge, training and experience, and may ultimately influence results and the ability to adapt and respond to work demands. In Chile, there exists an ambiguity and lack of definition in the role of the nurse. The objective of this study was to examine the healthcare team's perception of the current role of the perioperative nurse, as well as the expected and desired characteristics of the role from the team's perspective. A qualitative, descriptive case study was carried out, using semi-structured interviews conducted with a purposive sample of surgeons, anaesthesiologists, professional nurses and technical nurses from three hospitals in Santiago, Chile. The accounts were analysed using an inductive, thematic format. It was found that the current perioperative nursing role, with a predominance of administrative charting, recordkeeping and guidelines for the management of safety, quality control and human and material resources, restricts direct patient care. Expected characteristics of the role included comprehensive theoretical and practical training and the development of relational skills for teamwork, direct patient care and advocacy in the surgical context. These results provided initial steps towards redefining the role of the perioperative nurse, strengthening collaborative efforts and optimising patient care during a time of high vulnerability. PMID- 29328812 TI - Airway management of the morbidly obese patient. AB - A UK study found that obese patients are twice as likely as non-obese patients to develop airway problems during general anaesthesia (Cook et al 2011). This article focuses on airway management of morbidly obese patients during anaesthesia and examines the associated respiratory, gastric, and existing co morbidity complications that can be expected. Strategies that practitioners can use to reduce these risks are discussed. PMID- 29328813 TI - The perfect surgical assistant: Calm, confident, competent and courageous. AB - Poor surgical assistance has been identified as a major stressor in surgeons, making the ability to provide effective surgical assistance an important skill which will have a lifelong impact on the surgical patient. Knowledge and technical ability are clearly important, but strong personal qualities are more so in the long run. This applies to all who provide assistance either as a surgical first assistant or surgical care practitioner. These skills and attributes are needed to provide a safe service that meets the expectations of both the professional regulatory authorities and surgical Royal Colleges. Advice is given in this article as to how non-medical practitioners may acquire these skills. PMID- 29328814 TI - Pharyngotomy for a swallowed denture. AB - The introduction of inhalation anaesthesia, first by the use of ether in 1845 and then of chloroform in the following year, saw an explosion in the range and extent of major surgical procedures as patients were spared the agonies of the surgeon's knife. A good example of this was the operation of pharyngotomy - opening the cervical oesophagus through a lateral incision of the neck - to remove an impacted foreign body. One cannot imagine a surgeon being able to do this without the benefit of an anaesthetic! Edward Cock, a surgeon at Guy's Hospital, performed this operation successfully on two occasions; the second was reported in detail in the Guy's Hospital Reports 1868, Volume 28. PMID- 29328815 TI - Review of the correlation between hospice philosophies and logos. AB - A review was undertaken of the ability of some published hospice philosophies and logos from different countries, known to the author, to convey the spirit of hospice care. Weisman's (1988) essential criteria for a hospice programme - which acknowledge the patient, family and staff - were used when comparing the comprehensive nature of both philosophies and logos. The findings suggest that symbolic logos show a greater potential to succinctly convey the comprehensive spirit of hospice care than written philosophies. PMID- 29328816 TI - Building the pyramids: palliative care patients' perceptions of making art. AB - Throughout history artists have spoken of the inherent value of art to humanity. This paper describes a study which was undertaken to ascertain the value of making sculpture, as opposed to diversional activity, for people with advanced cancer. Day-patients at a palliative care centre were invited to participate in the making of a sculpture and their reactions were gathered via semi-structured interviews. From the qualitative data generated it is apparent that the activity was valuable to the participants for a variety of reasons. The metaphor of 'building the pyramids', supplied by a patient, to describe the art-making, provided a useful framework in which to explore the patients' reasons for valuing the activity. Notions of scale, ambition, achievement, longevity and transcendence were also recorded. PMID- 29328817 TI - Cancer Nursing: Creating the Future 9th International Conference on Cancer Nursing, August 12-15 1996. AB - During the weekend of 10-12 August 1996 over 1400 cancer nurses from over 70 countries began to converge on Brighton, England, the venue for the 9th biennial conference. It was hosted jointly by The Royal Marsden NHS Trust and the Royal College of Cancer Nursing Society, under the auspices of The International Society of Nurses in Cancer Care. The conference venue was the Metropole Hotel and the organisation of the event was in the capable hands of the RCN conference Unit. PMID- 29328818 TI - Does aromatherapy provide an holistic approach to palliative care? AB - Palliative care specialist nurses aim to ensure that clients are offered the full range of care modalities. It is important that care is given to the total person. This paper will critically analyse the role of complementary therapy as a contribution to palliative care. Aromatherapy will be specifically highlighted, including examination of the way in which it relates to the four main principles of holism. PMID- 29328819 TI - Launch of RCN Cancer Nursing Society Reports. AB - Unquestionably, people affected by cancer should have access to nurses with appropriate experience and expertise if they are to receive the best possible care. This message, which became a recurring theme during the 9th International Conference on Cancer Nursing is central to two timely RCN Cancer Nursing society reports, which were formally launched at the society's reception held during the week of the conference. PMID- 29328820 TI - Fatigue in patients receiving chemotherapy for advanced cancer. AB - Severe and unremitting fatigue is a common symptom in individuals with advanced disease. Combined with weakness it comprises a syndrome known as asthenia. Asthenia is associated with advanced cancer, and becomes an increasing problem for patients as their disease progresses, having enormous implications for quality of life. However, despite its prevalence and impact, relatively little is known about this complex syndrome. The study described in this paper investigated and compared the fatigue experienced by cancer patients with different stages of disease, who were receiving chemotherapy. The results from this study both support the notion that fatigue increases as cancer progresses, and provide evidence for the prevalence of asthenia. PMID- 29328821 TI - Special interest session on C-PET. AB - C-PET, a tool designed to aid communication between health care professionals and women with advanced breast cancer, was launched at a special interest session of the International Conference on Cancer Nursing, held in Brighton in August. PMID- 29328822 TI - Ethics of resource distribution: implications for palliative care services. AB - Over the past few years changes in health care delivery worldwide have prompted health care professionals to become increasingly aware of, and involved in, decisions surrounding resource distribution. This paper aims to examine the ethical issues behind such decisions with particular reference to palliative care services. It is suggested that current outcome measures used to examine the quality and effectiveness of care are unsuitable for use within the palliative care setting, and that health care professionals within the field should be aware of, and promote the use of, more appropriate outcome measures. This is essential in order that the philosophy central to palliative care may be upheld and resources maintained at an appropriate level. PMID- 29328823 TI - Improving psychosocial care: a professional development programme. AB - Despite the numerous reports of difficulties experienced by health care providers in providing psychosocial care to terminally ill patients and their families, few studies have yet been undertaken to examine the effectiveness of different educational approaches to addressing these issues. The aim of this paper is to describe a programme of professional development for palliative care nurses, which is currently being offered to 181 registered nurses in Queensland, Australia. The programme is based on an action learning model and is designed to facilitate processes of reflection and peer consultation. In Part One of this paper, a review of this literature is presented to provide the background and rationale for the programme design. Details of the research programme developed to evaluate the programme will be presented in Part Two of this paper, which is to be published in the next issue of this Journal. PMID- 29328825 TI - International perspectives: current enthusiasm and future potential. AB - This summer has had a distinctly international flavour from my point of view. With the 9th International Conference on Cancer Nursing based in England, nurses from around the world began converging on London weeks, and even months ahead of time, in order to combine a holiday with visits to cancer and palliative care services in the United Kingdom (UK). PMID- 29328826 TI - Evidence-based practice: meeting a need within palliative nursing. AB - Palliative care has progressed dramatically in terms of sound evidence-based practice since its inception in the mid 1970s. Far from being a negative judgemental statement this is intended as a historical statement of fact, recognising that without pioneers such as Dame Cicely Saunders within the hospice movement, we would not have a basis from which to evolve and improve palliative care. PMID- 29328827 TI - Developing a symptom distress scale for terminal malignant disease. AB - Symptom control is an important component of palliative care. The degree of distress caused by symptoms is individual. Instruments to measure symptom distress in patients with cancer have been developed, but have been poorly validated in the terminally ill. This study was an exploratory, descriptive, cross-sectional survey of 49 dying cancer patients, 60 professional carers (doctors and nurses) and 30 bereaved relatives. Semi-structured interviews were used to identify distressing symptoms for the dying cancer patient. The results indicated a diversity in the symptom experience and were used in the development of a physical symptom distress scale. Items were selected from a pool of symptoms generated from the three data sources, and compared with the literature of symptom distress in general cancer patients and symptom prevalence studies in terminal care. These were then compared with existing symptom distress scales. An adaptation of the physical sub-scale of the Rotterdam Symptom Checklist is proposed. PMID- 29328828 TI - Monitoring pressure sores in a palliative care setting. AB - Pressure sore prevention and management represents a major challenge to palliative care nurses. The balance of promoting comfort, providing appropriate care and following patient wishes can lead to dilemmas in decision making. This prospective study set out to gather more in-depth information on the extent and nature of the problem of pressure sores within a hospice. Areas investigated included prevalence and incidence rates, site and stage of sores and associated pain. Assessment using the Waterlow at risk score demonstrated that the majority of patients were within the high or very high risk category. The results have been used to inform practice, influence resource decisions and set a benchmark for future monitoring. PMID- 29328829 TI - The effect of sudden sibling loss on the adolescent or young adult. AB - Most research on sibling loss has concentrated on the effect of sibling loss in early childhood, but little is known about how the sudden death of a sibling affects the late adolescent or young adult. Although there are no definite boundaries to define adolescence or young adulthood, for the purpose of this article, it occurs between sixteen and thirty years of age. This paper is a review of the literature on such a loss and examines how adolescents grieve and the effect of family dynamics before and after the death and attempts to indicate ways in which adolescents can be helped at such a time. PMID- 29328830 TI - Letters. AB - Calculating opioid dose Nursing on the net. PMID- 29328831 TI - Patient autonomy and cancer treatment decisions. AB - Informing cancer patients about their diagnosis, prognosis and treatment options continues to create controversy, conflict and confusion amongst health care professionals. In suggesting that autonomous patients choose to be involved in treatment decisions, and share the ultimate responsibility for the out-come, Randall and Downie (1996) over simplify a complex ethical dilemma. The fragility of 'autonomy' as a concept, renders it vulnerable to individual circumstances, willingness to share responsibility and the ability of clinicians to release control. Ethical decision making models are systematic arrangements of standards designed to motivate and guide actions. Seedhouse and Lovett (1992) presented an ethical grid as a means by which a clinician might be guided through complex ethical dilemmas. The ethical grid has been utilised in an attempt to examine the issue of patient autonomy and cancer treatment decisions. PMID- 29328832 TI - The development of holistic dependency criteria for a specialist palliative care service. AB - This paper offers an overview of the development of holistic dependency criteria for a specialist palliative care unit. These were developed through action research in order to respond to peaks and troughs of work load in a way that both contained staffing costs and provided high quality care. Separate criteria were developed for in-patient, day, community and lymphoedema services. These are actively used in day-to-day practice and long term planning to provide appropriate cost-efficient staffing. A broad framework has been developed for measuring dependency across clinical palliative care services. Each palliative care service would, however, need to develop its own criteria to take into account the nature of its particular patients. PMID- 29328833 TI - Staying ahead by moving forward. AB - The International Journal of Palliative Nursing was established in 1995. It is a peer reviewed Journal and has a strong international Editorial Board. The primary aims of the Journal are to disseminate research findings through the publication of academic papers, to explore the relationship between theory and practice and to stimulate the cross fertilisation of ideas between nurses involved in palliative care worldwide. The scope of the Journal reflects the development and expansion of the speciality of palliative care in general, and palliative nursing in particular. Consequently it carries papers which address the needs of people who are facing any life threatening illness, at any stage of the disease continuum, and who are cared for and supported in any care setting. The Journal is concerned with all aspects of palliative nursing practice, education, management and research. It endorses and values interprofessional working and welcomes papers and correspondence from all professional groups. PMID- 29328834 TI - Multidisciplinary case study as an approach to the evaluation of palliative care services: two example. AB - In this paper it is argued that there is a need to adopt a Abroad approach to the evaluation of palliative care services which: takes account of the differing interest groups; reflects the complexities of palliative care provision; and uses varied methods suited to the particular research question. The central tenets of the formative, qualitative model of evaluation are presented and the strengths of such an approach are illustrated by reference to the evaluation of two palliative care services. PMID- 29328835 TI - Functional health patterns applied to palliative care: a case study. AB - In all aspects of nursing appropriate care can only be delivered if patients' problems are appropriately identified. In palliative care assessment of need may be particularly difficult as patients experience such a wide range and complexity of problems. In this work Functional Health Patterns (FHP) were used to structure the assessment of a patient referred to as Maria. Once her needs were identified the data was verified and interpreted leading to nursing diagnoses. Case studies are a non-experimental approach in which a wealth of descriptive information is used to examine an issue in depth. In this paper a single case study design was used to apply FHP to identify the needs of Maria. In so doing the theoretical approach of FHP was applied in practice and was subjectively evaluated by an expert in the field of palliative care. The assessment outcomes are presented and may be of value to others wishing to review their patient assessment process. PMID- 29328836 TI - Nurses response to terminal care in the geriatric unit. AB - The elderly patient poses a major challenge in the future organisation of nursing services. Over half of all cancers occur in the elderly and account for a considerable proportion of diagnoses for patients in geriatric units. The aim of this exploratory study was to investigate the attitudes of nurses towards terminal care of patients on their wards. The questionnaire sought the opinions of nurses on acute and rehabilitation wards with regard to various aspects of terminal care. The study identified several areas where nurses on both acute and rehabilitation wards felt uncomfortable with their role in the care of such patients and areas where they felt to be lacking in certain skills. The study highlighted that although nurses considered care in these wards to be good, the provision of specialised training, and support of these nurses, would perhaps enable more satisfaction for the nurses and improve care of elderly patients during their terminal illness. PMID- 29328837 TI - Research based mouth care in palliative care patients in the community setting. AB - This article states the importance of research based mouth care for palliative care patients. Mouth care for palliative care patients has relied upon traditional nursing practice with little utilisation of research findings. The author has examined the literature in addition to surveying nursing practice and dental recommendations. The utilisation of an assessment tool is advocated enabling accurate assessment of mouth care needs for palliative care patients. A protocol and standard has been formulated and appears in Figures 2 and 3. These are designed to allow appropriate treatment to be given. The standard can be audited as appropriate to assess performance. The author intends to implement this change into her team of district nurses and monitor its effectiveness. PMID- 29328838 TI - Prophylactic amiodarone vs dronedarone for prevention of perioperative arrhythmias in offpump coronary artery bypass grafting: A pilot randomized controlled trial. AB - The aim of this study was to compare the effects of prophylactic dronedarone and amiodarone in prevention of arrhythmias during and following off-pump coronary artery bypass grafting (OPCAB). This randomized, controlled, double-blinded, parallel-group study was carried out on 36 adult male patients aged 30-70 years, with modified Parsonnet score 0-10 undergoing offpump coronary artery bypass grafting. After obtaining approval from the institutional ethics committee and informed consent, the patients were randomly allocated to two equal groups (n=18). In one group, patients were given inj. amiodarone 3mg/kg in 100ml of normal saline prior to skin incision intravenously over 20 minutes. In the second group patients received tablet dronedarone 400mg orally twice daily, commencing three days prior to the date of surgery. Patients in the amiodarone group received placebo tablet while patients in the dronedarone group received placebo infusion for the sake of blinding. The frequency and profile of arrhythmias intraoperatively and 24 hours postoperatively were studied. Intraoperative arrhythmias occurred in 50% of patients receiving amiodarone and 16.67% of patients receiving dronedarone. Maximum ventricular rate during atrial fibrillation was significantly lower in the dronedarone group (121 beats per min) than in the amiodarone group (168 beats per min). The study concludes that dronedarone appears to be at least as effective as amiodarone in prophylaxis of intraoperative and postoperative arrhythmias in patients undergoing OPCAB, with a better control of ventricular response. PMID- 29328839 TI - Challenges to the orthopaedic arthroplasty enhanced recovery programme. AB - We performed a retrospective study of patients undergoing total knee and hip arthroplasty on an enhanced recovery programme, to identify pre- and postoperative factors contributing to an increased length of hospital stay. Of 109 patients, only 61 (56%) were ready for discharge on the fifth postoperative day. The three most common reasons for delays were oozing wounds, postoperative medical problems and failure to reach physiotherapy goals. PMID- 29328840 TI - Prolonged motor block following epidural anaesthesia: A proposed pathway for investigation and management to facilitate rapid MRI scanning to exclude vertebral canal haematoma. AB - Vertebral canal haematoma following epidural anaesthesia is a rare but potentially devastating occurence, which can lead to permanent neurological damage. Early clinical identification and diagnosis using MRI imaging with surgical decompression of the haematoma can lead to full recovery (Kebaish 2004). However surgical patients often have metal clips or staples, which are left inside the body, some of which are not MRI compatible. Currently there is no process to document which surgical clips have been used and their MRI compatibility in an accessible format. This can lead to a delay in performing MRI imaging. We propose a clinical pathway to expedite diagnosis of vertebral canal haematoma to incorporate a system to allow rapid identification of MRI compatibility of surgical clips used during surgery. PMID- 29328841 TI - Calculating drug infusion rates. AB - Intravenous drug administration is necessary for most patients who undergo general anaesthesia, and calculating correct dosages is essential, if those patients are to benefit from the proper therapeutic effects from their administered drugs, rather than suffering from any toxic effects which might result from overdosing. PMID- 29328842 TI - Case report of a patient with myasthenia gravis requiring a caesarean section. AB - RS is a 28-year old lady who presented in her first pregnancy to the High-Risk Obstetric Clinic for review in view of her medical history of myasthenia gravis. She was diagnosed with myasthenia gravis (MG) as a teenager, and underwent thymectomy soon after diagnosis. At the time of presentation to the clinic, RS was taking pyridostigmine and azathioprine for her MG. PMID- 29328843 TI - Gene and Cell Therapy in 2018: A Look Ahead. PMID- 29328844 TI - Cost awareness of disposable surgical equipment and strategies for improvement: cross sectional survey and literature review. AB - A significant healthcare funding gap has been predicted over the coming years. NHS England has made transparency and cost efficiency a key priority. Healthcare technology accounts for a large portion of healthcare expenditure. The aim of the study was to establish the cost awareness of theatre staff for disposable surgical equipment and to review the current evidence around improving cost awareness. A cross sectional survey was performed. A questionnaire was distributed to consultants, registrars, core surgical trainees and theatre scrub practitioners within an NHS foundation trust and analysed using Microsoft excel 2010. Following the results, which indicated poor cost awareness amongst theatre staff, a literature review was performed to identify strategies to improving cost awareness in healthcare. The results showed that only 22% of all participants (n = 48) were able to estimate cost correctly. There was no significant difference in cost accuracy between surgeons or scrub practitioners. Strategies for improvement in cost awareness were identified. A lack of cost awareness was identified amongst theatre healthcare professionals for common disposable surgical equipment. This is an area which must improve through the use of proven strategies such as national programs, education, visible pricing and price feedback, as highlighted in this paper. PMID- 29328845 TI - Development and implementation of a theatre booking form and morning briefing meeting to improve emergency theatre efficiency. AB - The aim of this study was to improve emergency theatre efficiency via the introduction of a theatre booking form and morning briefing meeting. Process mapping was used to engage staff and consider if the emergency theatre may benefit from the application of a structured process of communication. A theatre booking form and morning briefing meeting were implemented to promote change. Efficiency was measured by theatre utilisation and characterised into neutral time, efficient time and inefficient time. The results demonstrated a 12.9% increase in efficient time, 3.3% fall in inefficient time and 9.6% fall in neutral time post-implementation, during the high volume work period of 08:00 to 17:59 on weekdays. No improvement in efficiency was demonstrated outside these hours or on weekends during lower volume workloads. Utilisation of a theatre booking form and morning briefing meeting improved emergency theatre efficiency during high volume work periods by the application of a structured process of communication. PMID- 29328846 TI - A review of nausea and vomiting in the anaesthetic and post anaesthetic environment. AB - Postoperative nausea and vomiting (PONV) has long been known as a complication of anaesthesia and surgery. This paper focuses on the assessment of the risk factors related to PONV along with the strategies and interventions which can be put in place to manage the condition. The pharmacological and multi-modal treatment methods of managing the risk factors that contribute to PONV are discussed. PMID- 29328847 TI - An anaesthesia perspective on carotid body tumour (CBT) excision: A twenty-year case series at the Singapore General Hospital. AB - Carotid body tumours (CBT) are extremely rare neoplasms that arise from chemoreceptor cells at the bifurcation of the carotid artery. This rarity poses a challenge for the anaesthetist when dealing with surgeries for the removal of CBT. Reports of associated perioperative morbidity range from twenty to forty percent. This paper reviews the perioperative anaesthetic management of CBT patients and challenges in our institution's 20 year experience on 13 surgical CBT resections. PMID- 29328849 TI - Cultural issues in palliative care. AB - The understanding of different cultural needs is important in the field of palliative care. An individual's cultural background influences their way of behaviour and view of the world they live in. In Britain today, 5.5 per cent of the population comes from minority cultural groups. This paper argues that cultures in a plural society like Britain's are not static but continually changing. The nature of this change is discussed by looking at the processes of enculturation and acculturation. It is also argued that although some cultural change may take place, some basic rituals at death and dying remain unaffected. This then raises the need for health care professionals to be aware of the original (purist) value and belief system of each individual patient's culture, i.e. before acculturation, and keep that as a broad framework while assessing the current values and beliefs of that individual patient. The difference between culture and religion is briefly discussed, then a few cultural groups are selected to describe beliefs and practices during dying and at death. This is important because the basic tenet of palliative care is to view and treat the patient holistically. To do so, a clear understanding of the patient's values and belief system must be foremost. PMID- 29328848 TI - High risk endovascular aneurysm repair: a case report. AB - Mr AB is a 66-year old gentleman who presented for elective endovascular aneurysm repair (EVAR) following a routine screening scan identifying a 5.5cm abdominal aortic aneurysm (AAA). He had a past history of chronic obstructive pulmonary disease (COPD) with FEV1/FVC ratio of 48% on pre-assessment. He was hypertensive with a history of ischaemic heart disease (IHD), which has remained asymptomatic following coronary artery bypass grafting (CABG) eight years prior to this presentation. PMID- 29328850 TI - The concepts of truth telling and informed consent. AB - In the palliative care setting, nurses are regularly faced with the dilemma of what to tell their patients about the progress of their illness, treatment and their prognosis. This dilemma is not always handled in the best way and there are many difficulties for the nurse. This article examines the legal aspects of informed consent and highlights the dilemmas faced by nurses working in the palliative care field of nursing. This is an area which will remain controversial until open and clear guidance is given to carers on their roles and responsibilities. The objective of this article is to highlight the areas of difficulty where lack of clarity exist in order to provoke discussion on how these problems can be resolved. PMID- 29328851 TI - Experiential exercises in palliative care training. AB - Death education research has traditionally focused on the relative effectiveness of experiential versus didactic methods. Although experiential methods have been shown to be more effective at lowering death anxiety, little account has been taken of the distress that many people experience as a result of undertaking this kind of training. This article describes an investigation of the reactions of participants on a palliative care training course which included a day of experiential sessions. It was found that experiential training produced both positive outcomes, in terms of staff attitudes and clinical practice, and negative outcomes, in terms of emotional distress and anxiety experienced by participants. On balance, the positive aspects of this experiential training suggest that the gains do justify the means. Suggestions are therefore made for potential safeguards to minimise any adverse effects. PMID- 29328852 TI - Sexuality: the neglected component in palliative care. AB - Although sexuality is an integral part of holistic care, it appears to be an area that is seldom fully addressed or is even neglected entirely. The main reason appears to be nurses' discomfort with the issue of sexuality and a lack of nurse education in this area. This article advocates an eclectic model of care drawing on the work of several theorists. The ultimate aim is to look at the relevance and place of sexuality in the palliative care setting. A scenario identifies issues relating to sexuality in which this model was utilised. PMID- 29328853 TI - Palliative care services and settings: improving care. AB - The first part of this review focused on identifying studies which compared services and settings (O'Henley et al 1997). In the second part, the results of efforts to improve care in the areas previously identified as deficient are highlighted including communication, symptom control and support services. The guidelines that have been developed for palliative care are discussed along with the inherent difficulties faced by investigators when conducting research with the terminally ill. Nonetheless, more research is required to clarify which services work best for which kinds of patients and families in which circumstances. PMID- 29328854 TI - Leadership and management in specialist palliative care. AB - Since the publication in the UK of the White Paper 'Working for patients' (1989) which set out the Government's strategy for a better health service for patients, nursing management has undergone a metamorphosis. Senior nurse managers in newly established National Health Service Trusts have, in many cases, had to rise to the challenge of making the shift from a predominantly operational to a corporate role while maintaining their function as head of the profession of nursing without necessarily having management responsibility for nurses. PMID- 29328855 TI - Spiritual chaos: an alternative conceptualisation of grief. AB - Grief is examined in this article as spiritual chaos, rather than stages to be worked through. Major characteristics of grief and spirituality are identified as well as ways in which chaos theory can help us understand grief. Indigenous approaches to death, dying and grief are explored, and the role of the ritual elder, particularly in terms of creating a safe space in which grief can be safely sampled. Guidance from experienced helpers such as ritual elders assists persons experiencing grief to deal with issues in a more conscious way. It is argued that holistic health care teams require spiritual carers as full members, and that the role of spiritual carer may at times need to be undertaken by various members of the health care team. PMID- 29328856 TI - Clinical trials, palliative care and the research nurse. AB - This article describes the role of the research nurse in palliative care clinical trials. The need for these trials has been well documented, and there is a requirement to produce evidence that interventions employed in everyday practice actually work. This paper describes the explicit components and the multifaceted nature of the role of the research nurse in clinical trials in palliative care, and discusses the important part they can play in the advancement of this multidisciplinary specialty. PMID- 29328857 TI - Active palliative anti-cancer therapy. AB - Palliative care has a high profile in the delivery of cancer care services and is of growing interest to all health care practitioners. This reflects a marked change in attitudes to the management of cancer: not too long ago, nurses were forbidden to discuss treatment with patients, who were often ignorant of their diagnosis. Now, the focus has shifted to optimising quality of life in a comprehensive package of total care involving the patient and the family. PMID- 29328858 TI - Patient and professional centred care in the hospice. AB - Palliative nursing has an underpinning philosophy of caring for patients holistically and being patient centered. The essence of palliative nursing, however, may be compromised when nurses and other health care professionals fail to acknowledge and address their own care in an environment intense with loss, grief, pain and suffering. This paper explores how neglected anxieties and stress, coupled with factors of unconscious motivation, may jeopordise the excellence and expertise in hospice nursing and precipitate professional centred care. Recommendations include implementing and supporting initiatives such as reflection, clinical supervision and nurse debriefing. PMID- 29328859 TI - Effects of TENS applied to acupuncture points distal to a pain site. AB - The observation that patients with head and neck cancers undergoing radiotherapy continued to experience pain despite moderate analgesics prompted the first author to investigate whether transcutaneous electrical nerve stimulation (TENS), applied to acupuncture points away from the pain site, would increase the pain relief effect (Table 1). The pilot study involved four patients with head and neck cancers undergoing radiotherapy. The subsequent randomized trial involved 14 patients undergoing inguinal herniorrhaphy. Pain relief in the group receiving TENS on true acupuncture points was compared with that in patients receiving TENS on non-true points. Pain relief was evaluated by pain score and morphine use in the 24 hours following operation. Results of the pilot study suggested that TENS applied to acupuncture points enhanced pain relief. Patients in the follow-up trial had similar pain scores. Those given TENS to non-true acupuncture points required more morphine than those given TENS to true points, suggesting that endogenous opioids released from acupuncture points were boosting pain relief. PMID- 29328860 TI - Quality of Life From Canadian Cancer Trials Group MA.17R: A Randomized Trial of Extending Adjuvant Letrozole to 10 Years. AB - Purpose MA.17R was a Canadian Cancer Trials Group-led phase III randomized controlled trial comparing letrozole to placebo after 5 years of aromatase inhibitor as adjuvant therapy for hormone receptor-positive breast cancer. Quality of life (QOL) was a secondary outcome measure of the study, and here, we report the results of these analyses. Methods QOL was measured using the Short Form-36 (SF-36; two summary scores and eight domains) and menopause-specific QOL (MENQOL; four symptom domains) at baseline and every 12 months up to 60 months. QOL assessment was mandatory for Canadian Cancer Trials Group centers but optional for centers in other groups. Mean change scores from baseline were calculated. Results One thousand nine hundred eighteen women were randomly assigned, and 1,428 women completed the baseline QOL assessment. Compliance with QOL measures was > 85%. Baseline summary scores for the SF-36 physical component summary (47.5 for letrozole and 47.9 for placebo) and mental component summary (55.5 for letrozole and 54.8 for placebo) were close to the population norms of 50. No differences were seen between groups in mean change scores for the SF-36 physical and mental component summaries and the other eight QOL domains except for the role-physical subscale. No difference was found in any of the four domains of the MENQOL Conclusion No clinically significant differences were seen in overall QOL measured by the SF-36 summary measures and MENQOL between the letrozole and placebo groups. The data indicate that continuation of aromatase inhibitor therapy after 5 years of prior treatment in the trial population was not associated with a deterioration of overall QOL. PMID- 29328861 TI - Radiofrequency Ablation Versus Stereotactic Body Radiotherapy for Localized Hepatocellular Carcinoma in Nonsurgically Managed Patients: Analysis of the National Cancer Database. AB - Purpose Data that guide selection of optimal local ablative therapy for the management localized hepatocellular carcinoma (HCC) are lacking. Because there are limited prospective comparative data for these treatment modalities, we aimed to compare the effectiveness of radiofrequency ablation (RFA) versus stereotactic body radiotherapy (SBRT) by using the National Cancer Database. Methods We conducted an observational study to compare the effectiveness of RFA versus SBRT in nonsurgically managed patients with stage I or II HCC. Overall survival was compared by using propensity score-weighted and propensity score-matched analyses based on patient-, facility-, and tumor-level characteristics. A sensitivity analysis was performed to evaluate the effect of severe fibrosis/cirrhosis. In addition, we performed exploratory analyses to determine the effectiveness of RFA and SBRT in clinically relevant patient subsets. Results Overall, 3,684 (92.6%) and 296 (7.4%) nonsurgically managed patients with stage I or II HCC received RFA or SBRT, respectively. After propensity matching, 5-year overall survival was 29.8% (95% CI, 24.5% to 35.3%) in the RFA group versus 19.3% (95% CI, 13.5% to 25.9%) in the SBRT group ( P < .001). Inverse probability-weighted analysis yielded similar results. The benefit of RFA was consistent across all subgroups examined and was robust to the effects of severe fibrosis/cirrhosis. Conclusion Our study suggests that treatment with RFA yields superior survival compared with SBRT for nonsurgically managed patients with stage I or II HCC. Even though our results are limited by the biases related to the retrospective study design, we believe that, in the absence of a randomized clinical trial, our findings should be considered when recommending local ablative therapy for localized unresectable HCC. PMID- 29328862 TI - What Happens When Proton Meets Randomization: Is There a Future for Proton Therapy? PMID- 29328863 TI - Overexpression of mTOR and p(240-244)S6 in IDH1 Wild-Type Human Glioblastomas Is Predictive of Low Survival. AB - PI3K/Akt/mTOR pathway activation is a hallmark of high-grade gliomas, which prompted clinical trials for the use of PI3K and mTOR inhibitors. However, the poor results in the original trials suggested that better patient profiling was needed for such drugs. Thus, accurate and reproducible monitoring of mTOR complexes can lead to improved therapeutic strategies. In this work, we evaluated the expression and phosphorylation of mTOR, RAPTOR, and rpS6 in 195 human astrocytomas and 30 normal brain tissue samples. The expression of mTOR increased in glioblastomas, whereas mTOR phosphorylation, expression of RAPTOR, and expression and phosphorylation of rpS6 were similar between grades. Interestingly, the overexpression of total and phosphorylated mTOR as well as phosphorylated rpS6 (residues 240-244) were associated with wild-type IDH1 only glioblastomas. The expression and phosphorylation of mTOR and phosphorylation of rpS6 at residues 240-244 were associated with a worse prognosis in glioblastomas. Our results suggest that mTOR and rpS6 could be used as markers of overactivation of the PI3K-mTOR pathway and are predictive factors for overall survival in glioblastomas. Our study thus suggests that patients who harbor IDH1 wild-type glioblastomas might have increased benefit from targeted therapy against mTOR. PMID- 29328864 TI - Building Evidence for Health: Green Buildings, Current Science, and Future Challenges. AB - Civilizational challenges have questioned the status quo of energy and material consumption by humans. From the built environment perspective, a response to these challenges was the creation of green buildings. Although the revolutionary capacity of the green building movement has elevated the expectations of new commercial construction, its rate of implementation has secluded the majority of the population from its benefits. Beyond reductions in energy usage and increases in market value, the main strength of green buildings may be the procurement of healthier building environments. Further pursuing the right to healthy indoor environments could help the green building movement to attain its full potential as a transformational public health tool. On the basis of 40 years of research on indoor environmental quality, we present a summary of nine environment elements that are foundational to human health. We posit the role of green buildings as a critical research platform within a novel sustainability framework based on social-environmental capital assets. PMID- 29328865 TI - The Relationship Between Education and Health: Reducing Disparities Through a Contextual Approach. AB - Adults with higher educational attainment live healthier and longer lives compared with their less educated peers. The disparities are large and widening. We posit that understanding the educational and macrolevel contexts in which this association occurs is key to reducing health disparities and improving population health. In this article, we briefly review and critically assess the current state of research on the relationship between education and health in the United States. We then outline three directions for further research: We extend the conceptualization of education beyond attainment and demonstrate the centrality of the schooling process to health; we highlight the dual role of education as a driver of opportunity but also as a reproducer of inequality; and we explain the central role of specific historical sociopolitical contexts in which the education-health association is embedded. Findings from this research agenda can inform policies and effective interventions to reduce health disparities and improve health for all Americans. PMID- 29328867 TI - Glioma Stem Cell Niches in Human Glioblastoma Are Periarteriolar. AB - Survival of primary brain tumor (glioblastoma) patients is seriously hampered by glioma stem cells (GSCs) that are distinct therapy-resistant self-replicating pluripotent cancer cells. GSCs reside in GSC niches, which are specific protective microenvironments in glioblastoma tumors. We have recently found that GSC niches are hypoxic periarteriolar, whereas in most studies, GSC niches are identified as hypoxic perivascular. The aim of this review is to critically evaluate the literature on perivascular GSC niches to establish whether these are periarteriolar, pericapillary, perivenular, and/or perilymphatic. We found six publications showing images of human glioblastoma tissue containing perivascular GSC niches without any specification of the vessel type. However, it is frequently assumed that these vessels are capillaries which are exchange vessels, whereas arterioles and venules are transport vessels. Closer inspection of the figures of these publications showed vessels that were not capillaries. Whether these vessels were arterioles or venules was difficult to determine in one case, but in the other cases, these were clearly arterioles and their perivascular niches were similar to the periarteriolar niches we have found. Therefore, we conclude that in human glioblastoma tumors, GSC niches are hypoxic periarteriolar and are structurally and functionally look-alikes of hematopoietic stem cell niches in the bone marrow. PMID- 29328868 TI - Oral Sciences PhD Program Enrollment, Graduates, and Placement: 1994 to 2016. AB - For decades, dental schools in the United States have endured a significant faculty shortage. Studies have determined that the top 2 sources of dental faculty are advanced education programs and private practice. Those who have completed both DDS and PhD training are considered prime candidates for dental faculty positions. However, there is no national database to track those trainees and no evidence to indicate that they entered academia upon graduation. The objective of this study was to assess outcomes of dental school-affiliated oral sciences PhD program enrollment, graduates, and placement between 1994 and 2016. Using the American Dental Association annual survey of advanced dental education programs not accredited by the Commission on Dental Accreditation and data obtained from 22 oral sciences PhD programs, we assessed student demographics, enrollment, graduation, and placement. Based on the data provided by program directors, the average new enrollment was 33, and graduation was 26 per year. A total of 605 graduated; 39 did not complete; and 168 were still in training. Among those 605 graduates, 211 were faculty in U.S. academic institutions, and 77 were faculty in foreign institutions. Given that vacant budgeted full-time faculty positions averaged 257 per year during this period, graduates from those oral sciences PhD programs who entered academia in the United States would have filled 9 (3.6%) vacant faculty positions per year. Therefore, PhD programs have consistently generated only a small pipeline of dental school faculty. Better mentoring to retain talent in academia is necessary. Stronger support and creative funding plans are essential to sustain the PhD program. Furthermore, the oral sciences PhD program database should be established and maintained by dental professional organizations to allow assessments of training models, trends of enrollment, graduation, and placement outcomes. PMID- 29328866 TI - Proteoglycans as Immunomodulators of the Innate Immune Response to Lung Infection. AB - Proteoglycans (PGs) are complex, multifaceted molecules that participate in diverse interactions vital for physiological and pathological processes. As structural components, they provide a scaffold for cells and structural organization that helps define tissue architecture. Through interactions with water, PGs enable molecular and cellular movement through tissues. Through selective ionic interactions with growth factors, chemokines, cytokines, and proteases, PGs facilitate the ability of these soluble ligands to regulate intracellular signaling events and to influence the inflammatory response. In addition, recent findings now demonstrate that PGs can activate danger-associated molecular patterns (DAMPs) and other signaling pathways to influence production of many of these soluble ligands, indicating a more direct role for PGs in influencing the immune response and tissue inflammation. This review will focus on PGs that are selectively expressed during lung inflammation and will examine the novel emerging concept of PGs as immunomodulatory regulators of the innate immune responses in lungs. PMID- 29328869 TI - Inflammatory Bowel Diseases and Fermentable Oligosaccharides, Disaccharides, Monosaccharides, and Polyols: An Overview. AB - Inflammatory bowel diseases (IBDs) are mainly represented by ulcerative colitis and Crohn's disease, and the increase in the incidence tends to follow the rapid industrialization and lifestyle of modern societies. FODMAP (fermentable oligosaccharides, disaccharides, monosaccharides, and polyols) consist of molecules that are poorly absorbed in the small intestine and are fermented by bacteria in the colon leading to symptoms such as bloating, flatulence, diarrhea, and abdominal pain. Reduction of the ingestion of FODMAP could reduce the symptoms and improve the quality of life. This review aimed to summarize some important aspects of IBD and evaluate the effects of this diet on this inflammatory condition. Studies including the term FODMAP (and similar terms) and IBD were selected for this review (MEDLINE database was used PubMed/PMC). A low FODMAP diet may be an effective tool to the management of the common abdominal symptoms in patients with functional gastrointestinal symptoms once these molecules trigger these symptoms. This diet may also reduce the expression of pro inflammatory markers such as C-reactive protein and fecal calprotectin and may interfere with the microbiome and its metabolites. The use of a low FODMAP diet can bring benefits to the IBD patients, but may also modify their nutritional status. Thus it should be utilized in appropriated conditions, and dietary supplements should be necessary to avoid deficiencies that could be caused by a low FODMAP diet over long periods. We suggest that further investigations are required to elucidate when and how to apply the FODMAP diet in IBD patients. PMID- 29328871 TI - Achieving Mental Health and Substance Use Disorder Treatment Parity: A Quarter Century of Policy Making and Research. AB - The Mental Health Parity and Addiction Equity Act (MHPAEA) of 2008 changed the landscape of mental health and substance use disorder coverage in the United States. The MHPAEA's comprehensiveness compared with past parity laws, including its extension of parity to plan management strategies, the so-called nonquantitative treatment limitations (NQTL), led to significant improvements in mental health care coverage. In this article, we review the history of this landmark legislation and its recent expansions to new populations, describe past research on the effects of this and other mental health/substance use disorder parity laws, and describe some directions for future research, including NQTL compliance issues, effects of parity on individuals with severe mental illness, and measurement of benefits other than mental health care use. PMID- 29328872 TI - The Sustainability of Evidence-Based Interventions and Practices in Public Health and Health Care. AB - There is strong interest in implementation science to address the gap between research and practice in public health. Research on the sustainability of evidence-based interventions has been growing rapidly. Sustainability has been defined as the continued use of program components at sufficient intensity for the sustained achievement of desirable program goals and population outcomes. This understudied area has been identified as one of the most significant translational research problems. Adding to this challenge is uncertainty regarding the extent to which intervention adaptation and evolution are necessary to address the needs of populations that differ from those in which interventions were originally tested or implemented. This review critically examines and discusses conceptual and methodological issues in studying sustainability, summarizes the multilevel factors that have been found to influence the sustainability of interventions in a range of public health and health care settings, and highlights key areas for future research. PMID- 29328870 TI - Agent-Based Modeling in Public Health: Current Applications and Future Directions. AB - Agent-based modeling is a computational approach in which agents with a specified set of characteristics interact with each other and with their environment according to predefined rules. We review key areas in public health where agent based modeling has been adopted, including both communicable and noncommunicable disease, health behaviors, and social epidemiology. We also describe the main strengths and limitations of this approach for questions with public health relevance. Finally, we describe both methodologic and substantive future directions that we believe will enhance the value of agent-based modeling for public health. In particular, advances in model validation, comparisons with other causal modeling procedures, and the expansion of the models to consider comorbidity and joint influences more systematically will improve the utility of this approach to inform public health research, practice, and policy. PMID- 29328873 TI - Selecting and Improving Quasi-Experimental Designs in Effectiveness and Implementation Research. AB - Interventional researchers face many design challenges when assessing intervention implementation in real-world settings. Intervention implementation requires holding fast on internal validity needs while incorporating external validity considerations (such as uptake by diverse subpopulations, acceptability, cost, and sustainability). Quasi-experimental designs (QEDs) are increasingly employed to achieve a balance between internal and external validity. Although these designs are often referred to and summarized in terms of logistical benefits, there is still uncertainty about (a) selecting from among various QEDs and (b) developing strategies to strengthen the internal and external validity of QEDs. We focus here on commonly used QEDs (prepost designs with nonequivalent control groups, interrupted time series, and stepped-wedge designs) and discuss several variants that maximize internal and external validity at the design, execution and implementation, and analysis stages. PMID- 29328874 TI - Neighborhood Interventions to Reduce Violence. AB - Violence is a widespread problem that affects the physical, mental, and social health of individuals and communities. Violence comes with an immense economic cost to its victims and society at large. Although violence interventions have traditionally targeted individuals, changes to the built environment in places where violence occurs show promise as practical, sustainable, and high-impact preventive measures. This review examines studies that use quasi-experimental or experimental designs to compare violence outcomes for treatment and control groups before and after a change is implemented in the built environment. The most consistent evidence exists in the realm of housing and blight remediation of buildings and land. Some evidence suggests that reducing alcohol availability, improving street connectivity, and providing green housing environments can reduce violent crimes. Finally, studies suggest that neither transit changes nor school openings affect community violence. PMID- 29328875 TI - Environmental Determinants of Breast Cancer. AB - In the United States, breast cancer is the most common invasive malignancy and the second most common cause of death from cancer in women. Reproductive factors, estrogen, and progesterone have major causal roles, but concerns about other potential causes in the external environment continue to drive research inquiries and stimulate calls for action at the policy level. The environment is defined as anything that is not genetic and includes social, built, and chemical toxicant aspects. This review covers the scope of known and suspected environmental factors that have been associated with breast cancer and illustrates how epidemiology, toxicology, and mechanistic studies work together to create the full picture of environmental effects on this malignancy. Newer approaches to risk-related evaluations may allow this field to move forward and more clearly delineate actionable environmental causes of this most common of cancers in women. PMID- 29328876 TI - Meta-Analysis of Complex Interventions. AB - Meta-analysis is a prominent method for estimating the effects of public health interventions, yet these interventions are often complex in ways that pose challenges to using conventional meta-analytic methods. This article discusses meta-analytic techniques that can be used in research syntheses on the effects of complex public health interventions. We first introduce the use of complexity frameworks to conceptualize public health interventions. We then present a menu of meta-analytic procedures for addressing various sources of complexity when answering questions about the effects of public health interventions in research syntheses. We conclude with a review of important practices and key resources for conducting meta-analyses on complex interventions, as well as future directions for research synthesis more generally. Overall, we argue that it is possible to conduct meaningful quantitative syntheses of research on the effects of public health interventions, though these meta-analyses may require the use of advanced techniques to properly consider and attend to issues of complexity. PMID- 29328877 TI - Designing Difference in Difference Studies: Best Practices for Public Health Policy Research. AB - The difference in difference (DID) design is a quasi-experimental research design that researchers often use to study causal relationships in public health settings where randomized controlled trials (RCTs) are infeasible or unethical. However, causal inference poses many challenges in DID designs. In this article, we review key features of DID designs with an emphasis on public health policy research. Contemporary researchers should take an active approach to the design of DID studies, seeking to construct comparison groups, sensitivity analyses, and robustness checks that help validate the method's assumptions. We explain the key assumptions of the design and discuss analytic tactics, supplementary analysis, and approaches to statistical inference that are often important in applied research. The DID design is not a perfect substitute for randomized experiments, but it often represents a feasible way to learn about casual relationships. We conclude by noting that combining elements from multiple quasi-experimental techniques may be important in the next wave of innovations to the DID approach. PMID- 29328878 TI - Environmental Influences on the Epigenome: Exposure- Associated DNA Methylation in Human Populations. AB - DNA methylation is the most well studied of the epigenetic regulators in relation to environmental exposures. To date, numerous studies have detailed the manner by which DNA methylation is influenced by the environment, resulting in altered global and gene-specific DNA methylation. These studies have focused on prenatal, early-life, and adult exposure scenarios. The present review summarizes currently available literature that demonstrates a relationship between DNA methylation and environmental exposures. It includes studies on aflatoxin B1, air pollution, arsenic, bisphenol A, cadmium, chromium, lead, mercury, polycyclic aromatic hydrocarbons, persistent organic pollutants, tobacco smoke, and nutritional factors. It also addresses gaps in the literature and future directions for research. These gaps include studies of mixtures, sexual dimorphisms with respect to environmentally associated methylation changes, tissue specificity, and temporal stability of the methylation marks. PMID- 29328879 TI - Modeling Health Care Expenditures and Use. AB - Health care expenditures and use are challenging to model because these dependent variables typically have distributions that are skewed with a large mass at zero. In this article, we describe estimation and interpretation of the effects of a natural experiment using two classes of nonlinear statistical models: one for health care expenditures and the other for counts of health care use. We extend prior analyses to test the effect of the ACA's young adult expansion on three different outcomes: total health care expenditures, office-based visits, and emergency department visits. Modeling the outcomes with a two-part or hurdle model, instead of a single-equation model, reveals that the ACA policy increased the number of office-based visits but decreased emergency department visits and overall spending. PMID- 29328880 TI - Relative Roles of Race Versus Socioeconomic Position in Studies of Health Inequalities: A Matter of Interpretation. AB - An abundance of research has documented health inequalities by race and socioeconomic position (SEP) in the United States. However, conceptual and methodological challenges complicate the interpretation of study findings, thereby limiting progress in understanding health inequalities and in achieving health equity. Fundamental to these challenges is a lack of clarity about what race is and the implications of that ambiguity for scientific inquiry. Additionally, there is wide variability in how SEP is conceptualized and measured, resulting in a lack of comparability across studies and significant misclassification of risk. The objectives of this review are to synthesize the literature regarding common approaches to examining race and SEP health inequalities and to discuss the conceptual and methodological challenges associated with how race and SEP have been employed in public health research. Addressing health inequalities has become increasingly important as the United States trends toward becoming a majority-minority nation. Recommendations for future research are presented. PMID- 29328881 TI - Factors Affecting the Virological Response Among Chronic Hepatitis C Virus Patients in Yemen. AB - Hepatitis C virus (HCV) infection is increasingly seen as a major public health problem, threat, and concern worldwide. In Yemen about 1.7% of the population is infected with chronic hepatitis C. This study aimed to detect the predictors for response to pegylated interferon and ribavirin (Peg-IFN/RBV) in chronic HCV Yemeni patients. The study was conducted on 100 patients with chronic HCV who received Peg-IFN/RBV in the 48th Military Hospital in Sana'a Yemen, from 2011 to 2013. All patients were subjected to complete history taking, thorough clinical examinations, routine laboratory investigation, and abdominal ultrasonography. The HCV RNA was assessed at week 72 of treatment to detect whether the patient achieved sustained virological response (SVR). The SVR was achieved in 64% of the samples. Age above 40, Khat chewing, and obesity were the sociodemographic factors that predict good response for Peg-IFN/RBV combined therapy. Platelet count, alpha feto-protein (AFP), aspartate transaminase (AST), and alanine transaminase (ALT) levels were the basic laboratory investigations that gave favorable response. Significant predictors of sustained response included: older than 40 years (OR = 0.136, P = 0.042), Khat chewer (OR = 0.016, P = 0.008), body mass index (BMI) (OR = 0.055, P = 0.029) and increase in fasting blood glucose (OR = 0.925, P = 0.004), alkaline phosphatase (OR = 0.969, P = 0.001), total and bilirubin (OR = 0.058, P = 0.017), AST (OR = 1.033, P = 0.002), and albumin (OR = 6.490, P = 0.021). Studying the independent variables of response, we revealed that male gender, BMI, ALT >40, AFP >10, viremia >600, and hemoglobin and thyroid stimulating hormone (TSH) levels are variables associated with failure of end of treatment response (ETR) and SVR. PMID- 29328882 TI - Effects of Salvia miltiorrhiza Polysaccharides on Lipopolysaccharide-Induced Inflammatory Factor Release in RAW264.7 Cells. AB - This study investigated the anti-inflammatory effects and possible underlying mechanisms of Salvia miltiorrhiza polysaccharides (SMP) in lipopolysaccharide (LPS)-stimulated RAW264.7 cells. The cytotoxicity of SMP was detected by the MTT method. The morphological change of RAW264.7 was observed by Diff-Quik staining. Enzyme-linked immunosorbent assay was used to evaluate the production of cytokines in LPS-induced RAW264.7 cells. The nitric oxide (NO) kit assay detected the NO release from LPS-induced RAW264.7 cells. Real-time polymerase chain reaction was used to detect the transcriptions of tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6), inducible NO synthase (iNOS), and cyclooxygenase (COX)-2 in LPS-induced RAW264.7 cells. The protein expression of nuclear NF-kappaB was measured by Western blot. The results showed that the safe medication range of SMP was less than 3 mg/mL. Compared with the LPS model group, SMP (2, 1, and 0.5 mg/mL) improved the degree of cell deformation and reduced the amount of pseudopodia, and statistically reduced the secretions of cytokines in cells induced by LPS (P < 0.01) at different time points. SMP significantly inhibited the mRNA transcriptions of TNF-alpha, IL-6, iNOS, and COX-2 and the protein expressions of NF-kappaB, p-p65, and p-IkappaBa. In conclusion, this study preliminarily proved the protective effect of SMP on LPS-induced RAW264.7 macrophage. Its mechanism might be related to inhibition of NF-kappaB signal pathway and the gene expressions and secretion of cytokines. PMID- 29328883 TI - A Systematic Review of Interleukin-1beta in Post-Traumatic Stress Disorder: Evidence from Human and Animal Studies. AB - Pro-inflammatory cytokines, such as interleukin (IL)-1beta, have been implicated as underlying pathophysiological mechanisms and potential biomarkers of post traumatic stress disorder (PTSD). This systematic review examines data regarding IL-1beta production/concentration in human and animal studies of PTSD. In accordance with PRISMA guidelines, relevant articles from PubMed were reviewed from inception until July 10, 2017. Nineteen studies were eligible for inclusion. Animal studies demonstrated increased hippocampal IL-1beta in rodent models of PTSD. Several immunomodulatory drugs were shown to reduce elevated IL-1beta levels and anxiety-like behaviors in animals. Human cross-sectional studies showed contradictory results; serum and plasma IL-1beta concentrations in PTSD patients were either elevated or did not differ from control groups. In vitro IL 1beta production by stimulated cells demonstrated no difference between PTSD and control participants, although spontaneous in vitro production of IL-1beta was increased in the PTSD group. The findings from 2 longitudinal studies were inconsistent. Given the conflicting findings, it is premature to consider IL 1beta as a biomarker of PTSD. Anti-inflammatory agents may reduce IL-1beta, and be a potential basis for future therapeutic agents in PTSD treatment. More longitudinal research is needed to better understand the role of IL-1beta in the development and/or maintenance of PTSD. PMID- 29328885 TI - Radiographic Emphysema, Circulating Bone Biomarkers, and Progressive Bone Mineral Density Loss in Smokers. AB - RATIONALE: Osteoporosis is common in individuals with chronic obstructive pulmonary disease. Lung-specific factors, including radiographic emphysema, independently associate with low bone mineral density in cross-sectional smoking cohorts. However, factors associated with progressive bone loss in smokers are understudied and largely unknown. OBJECTIVES: To determine the relationship between radiographic emphysema, circulating bone metabolism markers, and pulmonary function and accelerated bone mineral density loss in smokers. METHODS: Two hundred and forty male and female current and former smokers, 40 years of age or older, underwent baseline and 2-year assessments of pulmonary function, computed tomography-assessed emphysema, dual X-ray absorptiometry-measured bone mineral density, and circulating bone metabolism biomarker levels (type I collagen C-telopeptide [CTX], amino-terminal propeptide of type I procollagen [P1NP]). The association of radiographic emphysema, bone metabolism biomarker levels, and pulmonary function with accelerated hip bone mineral density loss, defined by the 75th percentile of annual hip bone mineral density decline, was determined by logistic regression modeling with adjustment for age, sex, inhaled and intermittent steroid use, active smoking, body mass index, and the presence of baseline low hip bone mineral density. RESULTS: Of those participants with accelerated hip bone mineral density loss, 22% had moderate or severe visually assessed emphysema compared with 7.2% of smokers without accelerated bone mineral density decline. Moderate to severe visually assessed emphysema (odds ratio, 2.84; 95% confidence interval, 1.01-7.98 compared with trace/mild or no visually assessed emphysema) and the 75th percentile of CTX levels (odds ratio, 2.38; 95% confidence interval, 1.20-4.72 compared with CTX levels below the 75th percentile), a marker of bone resorption, were associated with accelerated hip bone mineral density decline after adjustment for covariates and the presence of baseline low hip bone mineral density. FEV1% predicted was not associated with accelerated bone mineral density decline after adjustment for covariates. Multivariate modeling showed moderate to severe visually assessed emphysema, and the 75th percentiles of CTX were independently associated with accelerated hip bone mineral density decline after adjustment for covariates. CONCLUSIONS: Emphysema and elevated markers of bone resorption are independently associated with progressive bone mineral density loss in smokers. These clinical markers may guide targeted bone mineral density screening and monitoring in smokers at highest risk. PMID- 29328884 TI - Evaluation of G2 Citric Acid-Based Dendrimer as an Adjuvant in Veterinary Rabies Vaccine. AB - For induction of an appropriate immune response, especially in the case of an inactivated vaccine, the use of an adjuvant is crucial. In this study, adjuvanticity effect of G2 dendrimer in veterinary rabies vaccine has been investigated. A nonlinear globular G2 dendrimer comprising citric acid and polyethylene glycol 600 (PEG-600) was synthesized and the toxicity was studied in vitro on the J774A.1 cell line. The adjuvanticity effect of the dendrimer was then investigated on rabies virus in NMRI mice as a model. Different concentrations of dendrimer were used to determine the best formulation for the survival of the mice after virus challenge. The rise of neutralizing antibody was also checked by rapid fluorescent focus inhibition test (RFFIT). The relative potency of the prepared formulation was finally calculated using standard NIH test and the results were compared (and discussed) with the commercially available rabies vaccine. The accuracy of dendrimer synthesis was confirmed using Fourier transform infrared (FT-IR), size, and zeta potential analysis. The in vitro toxicity assay revealed that no significant toxic effect is observed in cells when data are compared with the control group. The in vivo assay showed that a higher survival rate in the mice received a special formulation due to adjuvanticity effect of dendrimer, which is also confirmed by RFFIT. However, the relative potency of that formulation does not give expected results when compared with the alum-containing rabies vaccine. In the current investigation, the adjuvanticity effect of G2 dendrimer was demonstrated for the first time in rising of neutralizing antibodies against rabies virus. Our data confirm that nanoparticles can enhance immune responses in an appropriate manner. Moreover, engineered nanoparticles will enable us to develop novel potent multivalent adjuvants in vaccine technology. PMID- 29328886 TI - Osteochondral Graft Size Is Significantly Associated With Increased Force and Decreased Chondrocyte Viability. AB - BACKGROUND: Insertion force has been shown to significantly reduce chondrocyte viability during osteochondral allograft transplantation. How graft size influences the required insertion force and chondrocyte viability has yet to be determined. Hypothesis/Purpose: The purpose was to characterize how graft size influences insertion force requirements and chondrocyte viability during osteochondral transplantation. The hypothesis was that larger grafts would require greater force and reduce chondrocyte viability. STUDY DESIGN: Controlled laboratory study. METHODS: Four graft sizes-15 * 5 mm, 15 * 10 mm, 25 * 5 mm, and 25 * 10 mm (diameter * depth)-were harvested from 13 thawed fresh-frozen human cadaveric distal femurs. Average, maximum, and cumulative force and number of impacts were recorded for 44 grafts by a surgical mallet embedded with a calibrated force sensor. In a separate experiment, fresh osteochondral tissues were subjected to mechanical loading. To capture a range of clinically important forces, categories were selected to correspond to impaction force data. Chondrocyte viability was assessed with confocal laser microscopy and live/dead staining. RESULTS: Total force for all grafts averaged 4576 N. Median number of impacts for all grafts was 20 (range, 7-116). The mean number of impacts for 5-mm deep grafts was 14.2 (95% CI, 10.8-18.6), as compared with 26.3 (95% CI, 19.9 34.4) for 10-mm-deep grafts ( P < .001). The mean cumulative force for 5-mm-deep grafts was 2128 N (95% CI, 1467-3087), as opposed to 4689 N (95% CI, 3232-6803) for 10-mm-deep grafts ( P = .001). For every 1 mm in graft depth, an average of 13.1% (95% CI, 6.2%-20.3%) more impacts are required when controlling for diameter and density ( P < .001). For every 1 mm in graft depth, the force required increases on average by 17.1% (95% CI, 7.7%-27.4%) when controlling for diameter and density ( P = .001). There was a significant reduction in chondrocyte viability for the forces required for graft thickness values >10 mm. Only forces associated with graft thickness <10 mm had chondrocyte viabilities consistently >70%. CONCLUSION: Insertion force increases significantly with increasing graft depth. Controlling for diameter and bone density, a 1-mm increase in graft depth is associated with 13.1% more impacts and 17.1% more force. Chondrocyte viability was significantly reduced to <70% at average forces associated with grafts thicker than 10 mm. CLINICAL RELEVANCE: Based on the current data, graft depth is an important consideration for surgeons when sizing osteochondral allograft transplant for chondral lesions of the knee. PMID- 29328888 TI - Posterior Cruciate Ligament Reconstruction With Transtibial or Tibial Inlay Techniques: A Meta-analysis of Biomechanical and Clinical Outcomes. AB - BACKGROUND: Transtibial (TT) or tibial inlay (TI) techniques are commonly used for posterior cruciate ligament reconstruction (PCLR). However, the optimum method for PCLR after PCL injury remains debatable. Hypothesis/Purpose: The hypothesis was that TT and TI techniques would not show significant differences for all outcome measures. The purpose was to determine the biomechanical and clinical outcomes of TT and TI surgical techniques for PCLR. STUDY DESIGN: Meta analysis; Level of evidence, 3. METHODS: MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science, and SCOPUS electronic databases for articles published up until August 2016 were searched to find relevant articles comparing outcomes of TT versus TI techniques for PCLR. Data searching, extraction, analysis, and quality assessment were performed according to Cochrane Collaboration guidelines. Biomechanical outcomes and clinical outcomes of both techniques were compared. Results are presented as risk ratio (RR) for binary outcomes and weighted mean difference (WMD) for continuous outcomes with 95% confidence intervals (CI). RESULTS: Five biomechanical and 5 clinical studies were included. No significant biomechanical differences were found regarding posterior tibial translation (PTT) at a knee flexion angle of 90 degrees or PTT after cyclic loading between the 2 groups. However, a stronger in situ force in the graft was detected in the TT group (WMD = 15.58; 95% CI, 0.22 30.95; I2 = 10%). Although no significant differences were found in clinical outcomes such as Lysholm knee function score, Tegner activity score, side-to-side difference, or posterior drawer test at final follow-up between the 2 groups, the TT technique tended to entail fewer perioperative complications than the TI technique (RR = 0.60; 95% CI, 0.35-1.00; I2 = 0%). CONCLUSION: TT and TI techniques for PCLR can both restore normal knee kinematics and improve knee function. However, the issue of which yields better improvement in stability and functional recovery of the knee remains unclear. More high-quality trials and randomized controlled trials are needed. Although PCLR via the TT technique resulted in higher graft forces, determining whether this is clinically significant will require further studies. When performing the TI technique, surgeons should inform patients of the risk of complications. PMID- 29328887 TI - Macroscopic Rotator Cuff Tendinopathy and Histopathology Do Not Predict Repair Outcomes of Rotator Cuff Tears. AB - BACKGROUND: Numerous studies have identified factors that may affect the chances of rotator cuff healing after surgery. Intraoperative tendon quality may be used to predict healing and to determine type of repair and/or consideration of augmentation. There are no data that correlate how gross tendon morphology and degree of tendinopathy affect patient outcome or postoperative tendon healing. Purpose/Hypothesis: The purposes of this study were to (1) compare the gross appearance of the tendon edge during arthroscopic rotator cuff repair with its histological degree of tendinopathy and (2) determine if gross appearance correlated with postoperative repair integrity. The hypothesis was that gross (macroscopic) tendon with normal thickness, no delamination, and elastic tissue before repair would have a correlation with low Bonar scores, higher postoperative American Shoulder and Elbow Surgeons (ASES) scores, and increased rates of postoperative tendon healing on ultrasound. STUDY DESIGN: Cross sectional study; Level of evidence, 3. METHODS: A total of 105 patients undergoing repair of medium-size (1-3 cm) full-thickness rotator cuff tears were enrolled in the study. Intraoperatively, the supraspinatus tendon was rated on thickness, fraying, and stiffness. Tendon tissue was recovered for histological analysis based on the Bonar scoring system. Postoperative ASES and ultrasound assessment of healing were obtained 1 year after repair. Correlation between gross appearance of the tendon and rotator cuff histology was determined. RESULTS: Of the 105 patients, 85 were followed the study to completion. The mean age of the patients was 61.6 years; Bonar score, 7.5; preoperative ASES score, 49; and postoperative ASES score, 86. Ninety-one percent of repairs were intact on ultrasound. Gross appearance of torn rotator cuff tendon tissue did not correlate with histological appearance. Neither histological (Bonar) score nor gross appearance correlated with multivariate analysis of ASES score, postoperative repair status, or demographic data. CONCLUSION: The degree of tendinopathy did not correlate with morphological appearance of the tendon. Neither of these parameters correlated with healing or patient outcome. This study suggests that the degree of tendinopathy, unlike muscle atrophy, may not be predictive of outcomes and that, on appearance, poor quality tendon has adequate healing capacity. Therefore, abnormal gross tendon appearance should not affect the repair effort or technique. PMID- 29328889 TI - Respiratory Phenotypes for Preterm Infants, Children, and Adults: Bronchopulmonary Dysplasia and More. AB - Ongoing advancements in neonatal care since the late 1980s have led to increased numbers of premature infants surviving well beyond the neonatal period. As a result of increased survival, many individuals born preterm manifest chronic respiratory symptoms throughout infancy, childhood, and adult life. The archetypical respiratory disease of prematurity, bronchopulmonary dysplasia, is the second most common chronic pediatric respiratory disease after asthma. However, there are several commonly held misconceptions. These misconceptions include that bronchopulmonary dysplasia is rare, that bronchopulmonary dysplasia resolves within the first few years of life, and that bronchopulmonary dysplasia does not impact respiratory health in adult life. This focused review describes a spectrum of respiratory conditions that individuals born prematurely may experience throughout their lifespan. Specifically, this review provides quantitative estimates of the number of individuals with alveolar, airway, and vascular phenotypes associated with bronchopulmonary dysplasia, as well as non bronchopulmonary dysplasia respiratory phenotypes such as airway malacia, obstructive sleep apnea, and control of breathing issues. Furthermore, this review illustrates what is known about the potential for progression and/or lack of resolution of these respiratory phenotypes in childhood and adult life. Recognizing the spectrum of respiratory phenotypes associated with individuals born preterm and providing comprehensive and personalized care to these individuals may help to modulate adverse respiratory outcomes in later life. PMID- 29328891 TI - Dysplasia Should Not Be Ignored in Lichenoid Mucositis. AB - Oral lichen planus is categorized as a potentially malignant condition by the World Health Organization; however, some argue that only lichen planus with dysplasia have malignant potential. Many pathologists call lichen planus with dysplasia "dysplasia with lichenoid mucositis (LM)" or "LM with dysplasia." Previous research has shown that certain high-risk patterns of loss of heterozygosity (LOH) in dysplastic lesions are associated with significantly increased cancer risk. However, LM without dysplasia lacks such molecular patterns, supporting the hypothesis that LM, by itself, is not potentially malignant and that only those with dysplasia have malignant potential. To further investigate the premalignant nature of LM with dysplasia, this study compared the rate of malignant progression of dysplasia with LM with that of dysplasia without LM. Patients from a population-based prospective cohort study with >10 y of follow-up were analyzed. Study eligibility included a histological diagnosis of a primary low-grade dysplasia with or without LM. A total of 446 lesions in 446 patients met the selection criteria; 373 (84%) were classified as dysplasia without LM, while 73 (16%) were classified as dysplasia with LM. Demographic and habit information, clinical information, and outcome (progression) were compared between the 2 groups. Forty-nine of 373 cases of dysplasia (13%) progressed compared to 8% (6/73) of dysplasia with LM. However, the difference was not statistically different ( P = 0.24). The 3- and 5-y rate of progression did not differ between the groups (6.7% and 12.5% for dysplasia without LM and 2.9% and 6.6% for those with LM; P = 0.36). Progression was associated with nonsmoking, location at a high-risk site, and diagnosis of moderate dysplasia regardless of whether LM was present or not. Dysplasia with or without LM had similar cancer risk, and dysplasia should not be discounted in the presence of LM. PMID- 29328892 TI - A New Year's transition and looking forward. PMID- 29328893 TI - Quality in urine microscopy: The eyes of the beholder. PMID- 29328894 TI - Frailty and cardiovascular disease: A two-way street? PMID- 29328895 TI - What is the hepatitis B vaccination regimen in chronic kidney disease? PMID- 29328896 TI - Do cardiac risk stratification indexes accurately estimate perioperative risk in noncardiac surgery patients? PMID- 29328897 TI - High users of healthcare: Strategies to improve care, reduce costs. AB - A minority of patients consume a disproportionate amount of healthcare, especially in the emergency department. These "high users" are a small but complex group whose expenses are driven largely by low socioeconomic status, mental illness, and drug abuse; lack of social services also contributes. Several promising efforts aimed at improving quality and reducing healthcare costs for high users include care management organizations, patient care plans, and better discharge summaries. PMID- 29328898 TI - Idiopathic hypercalciuria: Can we prevent stones and protect bones? AB - Idiopathic hypercalciuria increases the risk of urinary stones and osteoporosis. The aim of this review is to delineate our current understanding of idiopathic hypercalciuria in the context of bone health, specifically its definition, causes, epidemiology, laboratory evaluation, and potential treatments. PMID- 29328899 TI - Preventing cardiovascular disease in older adults: One size does not fit all. AB - Frailty and cardiovascular disease are highly interconnected and increase in prevalence with age. Identifying frailty allows for a personalized cardiovascular risk prescription and individualized management of hypertension, hyperlipidemia, diabetes, and lifestyle in the aging population. PMID- 29328900 TI - Detecting and managing device leads inadvertently placed in the left ventricle. AB - Inadvertent malpositioning of a cardiac implantable electronic device lead into the left ventricle is a rare complication of transvenous pacing and defibrillation. Rapid identification of lead position is critical during implantation and just after the procedure, with immediate correction required if malpositioning is detected. If lead misplacement is discovered late after implantation, the lead should be surgically removed or chronic anticoagulation with warfarin should be instituted. PMID- 29328901 TI - A 50-year-old woman with new-onset seizure. PMID- 29328902 TI - Hypothermia and severe first-degree heart block. PMID- 29328903 TI - Dysmorphic red blood cell formation. PMID- 29328904 TI - Further comments on "High-titre inhibitors in previously untreated patients with severe haemophilia A receiving recombinant or plasma-derived factor VIII: a budget-impact analysis". PMID- 29328906 TI - Importance of information provision in the acceptance of blood donation criteria by the general public in Belgium. AB - BACKGROUND: Blood transfusions save lives, but carry the risk of causing transfusion-transmitted diseases. This risk is limited by strict donor selection criteria, the most controversial being the exclusion of men who had sex with men (MSM). This cross-sectional study investigated knowledge and beliefs of the general public concerning donor exclusion criteria, with emphasis on MSM. MATERIALS AND METHODS: A representative sample of the population of Flanders, Belgium was questioned using a web-based questionnaire. The effect of additional information on people's opinions was tested. RESULTS: People were less aware of the exclusion of MSM than of other risk populations, e.g. prostitutes. Correspondingly, they were more willing to accept blood from MSM than from other risk populations. MSM were also considered appropriate donors. Interestingly, prior knowledge about the exclusion of MSM appeared to be the strongest predictor for not accepting blood from MSM or a more stringent attitude on MSM exclusion. Receiving information on reasons for exclusion shifted opinions towards more stringency. Nevertheless, most people think that exceptions for MSM should be made under certain circumstances. This study identified several demographic factors associated with opinions concerning the exclusion of MSM for blood donation and the potential to change opinions after receiving information, e.g. age or socio-economic status. DISCUSSION: Blood collecting services can gain understanding from the general public about their exclusion policies by providing clear information. Communication efforts targeting specific audiences in function of their knowledge and likeliness to change their opinion, might improve the effectiveness of information campaigns. PMID- 29328905 TI - Diagnosis and care of patients with mild haemophilia: practical recommendations for clinical management. AB - Mild haemophilia is defined by factor levels between 0.05 and 0.40 IU/mL and is characterised by traumatic bleeds. Major issues associated with mild haemophilia are that it may not present for many years after birth, and that awareness, even within families, may be low. Methodological problems exist in diagnosis, such as inconsistencies in results obtained from different assays used to measure factor levels in mild haemophilia. Advances in genetic testing provide insight into diagnosis as well as the likelihood of inhibitor development, which is not uncommon in patients with mild or moderate haemophilia and can increase morbidity. The management of patients with mild haemophilia is a challenge. This review includes suggestions around formulating treatment plans for these patients, encompassing the full spectrum from clinical care of the newly diagnosed neonate to that of the ageing patient with multiple comorbidities. Management strategies consider not only the vast differences in these patients' needs, but also risks of inhibitor development and approaches to optimally engage patients. PMID- 29328907 TI - Weaving New Insights for the Genetic Regulation of Human Cognitive Phenotypes. AB - Psychiatric genetic studies have drawn associations between human cognitive traits and noncoding genomic variants. However, the mechanistic effects of these variants are unclear. By weaving in strands of genomic data from developing human brains, de la Torre-Ubieta et al. tie disease-associated loci to functional enhancers, target genes, and putatively affected cell types. PMID- 29328908 TI - Metabolic Induction of Trained Immunity through the Mevalonate Pathway. AB - Innate immune cells can develop long-term memory after stimulation by microbial products during infections or vaccinations. Here, we report that metabolic signals can induce trained immunity. Pharmacological and genetic experiments reveal that activation of the cholesterol synthesis pathway, but not the synthesis of cholesterol itself, is essential for training of myeloid cells. Rather, the metabolite mevalonate is the mediator of training via activation of IGF1-R and mTOR and subsequent histone modifications in inflammatory pathways. Statins, which block mevalonate generation, prevent trained immunity induction. Furthermore, monocytes of patients with hyper immunoglobulin D syndrome (HIDS), who are mevalonate kinase deficient and accumulate mevalonate, have a constitutive trained immunity phenotype at both immunological and epigenetic levels, which could explain the attacks of sterile inflammation that these patients experience. Unraveling the role of mevalonate in trained immunity contributes to our understanding of the pathophysiology of HIDS and identifies novel therapeutic targets for clinical conditions with excessive activation of trained immunity. PMID- 29328909 TI - Single-Cell Genomics: A Stepping Stone for Future Immunology Discoveries. AB - The immunology field has invested great efforts and ingenuity to characterize the various immune cell types and elucidate their functions. However, accumulating evidence indicates that current technologies and classification schemes are limited in their ability to account for the functional heterogeneity of immune processes. Single-cell genomics hold the potential to revolutionize the way we characterize complex immune cell assemblies and study their spatial organization, dynamics, clonal distribution, pathways, function, and crosstalks. In this Perspective, we consider recent and forthcoming technological and analytical advances in single-cell genomics and the potential impact of those advances on the future of immunology research and immunotherapy. PMID- 29328911 TI - Western Diet Triggers NLRP3-Dependent Innate Immune Reprogramming. AB - Long-term epigenetic reprogramming of innate immune cells in response to microbes, also termed "trained immunity," causes prolonged altered cellular functionality to protect from secondary infections. Here, we investigated whether sterile triggers of inflammation induce trained immunity and thereby influence innate immune responses. Western diet (WD) feeding of Ldlr-/- mice induced systemic inflammation, which was undetectable in serum soon after mice were shifted back to a chow diet (CD). In contrast, myeloid cell responses toward innate stimuli remained broadly augmented. WD-induced transcriptomic and epigenomic reprogramming of myeloid progenitor cells led to increased proliferation and enhanced innate immune responses. Quantitative trait locus (QTL) analysis in human monocytes trained with oxidized low-density lipoprotein (oxLDL) and stimulated with lipopolysaccharide (LPS) suggested inflammasome mediated trained immunity. Consistently, Nlrp3-/-/Ldlr-/- mice lacked WD-induced systemic inflammation, myeloid progenitor proliferation, and reprogramming. Hence, NLRP3 mediates trained immunity following WD and could thereby mediate the potentially deleterious effects of trained immunity in inflammatory diseases. PMID- 29328910 TI - Modulation of Myelopoiesis Progenitors Is an Integral Component of Trained Immunity. AB - Trained innate immunity fosters a sustained favorable response of myeloid cells to a secondary challenge, despite their short lifespan in circulation. We thus hypothesized that trained immunity acts via modulation of hematopoietic stem and progenitor cells (HSPCs). Administration of beta-glucan (prototypical trained immunity-inducing agonist) to mice induced expansion of progenitors of the myeloid lineage, which was associated with elevated signaling by innate immune mediators, such as IL-1beta and granulocyte-macrophage colony-stimulating factor (GM-CSF), and with adaptations in glucose metabolism and cholesterol biosynthesis. The trained-immunity-related increase in myelopoiesis resulted in a beneficial response to secondary LPS challenge and protection from chemotherapy induced myelosuppression in mice. Therefore, modulation of myeloid progenitors in the bone marrow is an integral component of trained immunity, which to date, was considered to involve functional changes of mature myeloid cells in the periphery. PMID- 29328913 TI - An Integrated View of Immunometabolism. AB - The worldwide obesity epidemic has emerged as a major cause of insulin resistance and Type 2 diabetes. Chronic tissue inflammation is a well-recognized feature of obesity, and the field of immunometabolism has witnessed many advances in recent years. Here, we review the major features of our current understanding with respect to chronic obesity-related inflammation in metabolic tissues and focus on how these inflammatory changes affect insulin sensitivity, insulin secretion, food intake, and glucose homeostasis. There is a growing appreciation of the varied and sometimes integrated crosstalk between cells within a tissue (intraorgan) and tissues within an organism (interorgan) that supports inflammation in the context of metabolic dysregulation. Understanding these pathways and modes of communication has implications for translational studies. We also briefly summarize the state of this field with respect to potential current and developing therapeutics. PMID- 29328912 TI - BCG Educates Hematopoietic Stem Cells to Generate Protective Innate Immunity against Tuberculosis. AB - The dogma that adaptive immunity is the only arm of the immune response with memory capacity has been recently challenged by several studies demonstrating evidence for memory-like innate immune training. However, the underlying mechanisms and location for generating such innate memory responses in vivo remain unknown. Here, we show that access of Bacillus Calmette-Guerin (BCG) to the bone marrow (BM) changes the transcriptional landscape of hematopoietic stem cells (HSCs) and multipotent progenitors (MPPs), leading to local cell expansion and enhanced myelopoiesis at the expense of lymphopoiesis. Importantly, BCG educated HSCs generate epigenetically modified macrophages that provide significantly better protection against virulent M. tuberculosis infection than naive macrophages. By using parabiotic and chimeric mice, as well as adoptive transfer approaches, we demonstrate that training of the monocyte/macrophage lineage via BCG-induced HSC reprogramming is sustainable in vivo. Our results indicate that targeting the HSC compartment provides a novel approach for vaccine development. PMID- 29328914 TI - Rewiring of the Fruit Metabolome in Tomato Breeding. AB - Humans heavily rely on dozens of domesticated plant species that have been further improved through intensive breeding. To evaluate how breeding changed the tomato fruit metabolome, we have generated and analyzed a dataset encompassing genomes, transcriptomes, and metabolomes from hundreds of tomato genotypes. The combined results illustrate how breeding globally altered fruit metabolite content. Selection for alleles of genes associated with larger fruits altered metabolite profiles as a consequence of linkage with nearby genes. Selection of five major loci reduced the accumulation of anti-nutritional steroidal glycoalkaloids in ripened fruits, rendering the fruit more edible. Breeding for pink tomatoes modified the content of over 100 metabolites. The introgression of resistance genes from wild relatives in cultivars also resulted in major and unexpected metabolic changes. The study reveals a multi-omics view of the metabolic breeding history of tomato, as well as provides insights into metabolome-assisted breeding and plant biology. PMID- 29328915 TI - Retrovirus-like Gag Protein Arc1 Binds RNA and Traffics across Synaptic Boutons. AB - Arc/Arg3.1 is required for synaptic plasticity and cognition, and mutations in this gene are linked to autism and schizophrenia. Arc bears a domain resembling retroviral/retrotransposon Gag-like proteins, which multimerize into a capsid that packages viral RNA. The significance of such a domain in a plasticity molecule is uncertain. Here, we report that the Drosophila Arc1 protein forms capsid-like structures that bind darc1 mRNA in neurons and is loaded into extracellular vesicles that are transferred from motorneurons to muscles. This loading and transfer depends on the darc1-mRNA 3' untranslated region, which contains retrotransposon-like sequences. Disrupting transfer blocks synaptic plasticity, suggesting that transfer of dArc1 complexed with its mRNA is required for this function. Notably, cultured cells also release extracellular vesicles containing the Gag region of the Copia retrotransposon complexed with its own mRNA. Taken together, our results point to a trans-synaptic mRNA transport mechanism involving retrovirus-like capsids and extracellular vesicles. PMID- 29328917 TI - Immune Training Unlocks Innate Potential. AB - Trained immunity is a form of innate immune memory with distinct features from classical adaptive immune memory. In the current issues of Cell and Cell Host & Microbe, five studies from the International Trained Immunity Consortium shed light on mechanisms and functional consequences of this phenomenon on cellular and whole-organism levels. PMID- 29328916 TI - The Neuronal Gene Arc Encodes a Repurposed Retrotransposon Gag Protein that Mediates Intercellular RNA Transfer. AB - The neuronal gene Arc is essential for long-lasting information storage in the mammalian brain, mediates various forms of synaptic plasticity, and has been implicated in neurodevelopmental disorders. However, little is known about Arc's molecular function and evolutionary origins. Here, we show that Arc self assembles into virus-like capsids that encapsulate RNA. Endogenous Arc protein is released from neurons in extracellular vesicles that mediate the transfer of Arc mRNA into new target cells, where it can undergo activity-dependent translation. Purified Arc capsids are endocytosed and are able to transfer Arc mRNA into the cytoplasm of neurons. These results show that Arc exhibits similar molecular properties to retroviral Gag proteins. Evolutionary analysis indicates that Arc is derived from a vertebrate lineage of Ty3/gypsy retrotransposons, which are also ancestors to retroviruses. These findings suggest that Gag retroelements have been repurposed during evolution to mediate intercellular communication in the nervous system. PMID- 29328918 TI - Transmembrane Pickets Connect Cyto- and Pericellular Skeletons Forming Barriers to Receptor Engagement. AB - Phagocytic receptors must diffuse laterally to become activated upon clustering by multivalent targets. Receptor diffusion, however, can be obstructed by transmembrane proteins ("pickets") that are immobilized by interacting with the cortical cytoskeleton. The molecular identity of these pickets and their role in phagocytosis have not been defined. We used single-molecule tracking to study the interaction between Fcgamma receptors and CD44, an abundant transmembrane protein capable of indirect association with F-actin, hence likely to serve as a picket. CD44 tethers reversibly to formin-induced actin filaments, curtailing receptor diffusion. Such linear filaments predominate in the trailing end of polarized macrophages, where receptor mobility was minimal. Conversely, receptors were most mobile at the leading edge, where Arp2/3-driven actin branching predominates. CD44 binds hyaluronan, anchoring a pericellular coat that also limits receptor displacement and obstructs access to phagocytic targets. Force must be applied to traverse the pericellular barrier, enabling receptors to engage their targets. PMID- 29328920 TI - SnapShot: Mitochondrial Nucleoid. AB - Mitochondrial DNA is compacted into nucleoprotein complexes denoted mitochondrial nucleoids, the focus of this SnapShot. PMID- 29328919 TI - Color Processing in the Early Visual System of Drosophila. AB - Color vision extracts spectral information by comparing signals from photoreceptors with different visual pigments. Such comparisons are encoded by color-opponent neurons that are excited at one wavelength and inhibited at another. Here, we examine the circuit implementation of color-opponent processing in the Drosophila visual system by combining two-photon calcium imaging with genetic dissection of visual circuits. We report that color-opponent processing of UVshort/blue and UVlong/green is already implemented in R7/R8 inner photoreceptor terminals of "pale" and "yellow" ommatidia, respectively. R7 and R8 photoreceptors of the same type of ommatidia mutually inhibit each other directly via HisCl1 histamine receptors and receive additional feedback inhibition that requires the second histamine receptor Ort. Color-opponent processing at the first visual synapse represents an unexpected commonality between Drosophila and vertebrates; however, the differences in the molecular and cellular implementation suggest that the same principles evolved independently. PMID- 29328922 TI - A Viral (Arc)hive for Metazoan Memory. AB - Arc, a master regulator of synaptic plasticity, contains sequence elements that are evolutionarily related to retrotransposon Gag genes. Two related papers in this issue of Cell show that Arc retains retroviral-like capsid-forming ability and can transmit mRNA between cells in the nervous system, a process that may be important for synaptic function. PMID- 29328921 TI - Tomato Multiomics Reveals Consequences of Crop Domestication and Improvement. AB - Genome-scale analyses of variation, gene expression, and metabolite accumulation in ancestral, early domesticates, and modern tomatoes by Zhu et al. identify genes underlying fruit chemistry and demonstrate that alleles affecting metabolic quality have been bred into modern varieties as a result of linkage drag. Similar metabolic hitchhikers are likely ubiquitous in other domesticated species. PMID- 29328924 TI - Reply by Authors. PMID- 29328923 TI - Editorial Comment. PMID- 29328927 TI - Alzheimer's disease biomarker-guided diagnostic workflow using the added value of six combined cerebrospinal fluid candidates: Abeta1-42, total-tau, phosphorylated tau, NFL, neurogranin, and YKL-40. AB - INTRODUCTION: The diagnostic and classificatory performances of all combinations of three core (amyloid beta peptide [i.e., Abeta1-42], total tau [t-tau], and phosphorylated tau) and three novel (neurofilament light chain protein, neurogranin, and YKL-40) cerebrospinal fluid biomarkers of neurodegeneration were compared among individuals with mild cognitive impairment (n = 41), Alzheimer's disease dementia (ADD; n = 35), frontotemporal dementia (FTD; n = 9), and cognitively healthy controls (HC; n = 21), using 10-fold cross-validation. METHODS: The combinations ranking in the top 10 according to diagnostic accuracy in differentiating between distinct diagnostic categories were identified. RESULTS: The single biomarkers or biomarker combinations generating the best area under the receiver operating characteristics (AUROCs) were the following: the combination [amyloid beta peptide + phosphorylated tau + neurofilament light chain] for distinguishing between ADD patients and HC (AUROC = 0.86), t-tau for distinguishing between ADD and FTD patients (AUROC = 0.82), and t-tau for distinguishing between FTD patients and HC (AUROC = 0.78). CONCLUSIONS: Novel and established cerebrospinal fluid markers perform with at least fair accuracy in the discrimination between ADD and FTD. The classification of mild cognitive impairment individuals was poor. PMID- 29328926 TI - DNA damage-associated oligodendrocyte degeneration precedes amyloid pathology and contributes to Alzheimer's disease and dementia. AB - INTRODUCTION: In looking for novel non-amyloid-based etiologies for Alzheimer's disease, we explore the hypothesis that age-related myelin loss is an attractive explanation for age-associated cognitive decline and dementia. METHODS: We performed a meta-analysis of data in the National Alzheimer's Coordinating Center database accompanied by quantitative histopathology of myelin and oligodendrocytes (OLs) in frontal cortices of 24 clinically characterized individuals. Pathological findings were further validated in an Alzheimer's disease mouse model and in culture. RESULTS: Myelin lesions increased with cognitive impairment in an amyloid-independent fashion with signs of degeneration appearing before neuronal loss. Myelinating OLs in the gray matter showed greater vulnerability than those in white matter, and the degenerative changes correlated with evidence of DNA damage. Similar results were found in myelinating OL cultures where DNA damage caused aberrant OL cell cycle re-entry and death. DISCUSSION: We present the first comprehensive analysis of the cell biology of early myelin loss in sporadic Alzheimer's disease. PMID- 29328928 TI - Driving cessation over a 24-year period: Dementia severity and cerebrospinal fluid biomarkers. AB - INTRODUCTION: With 36 million older adult U.S. drivers, safety is a critical concern, particularly among those with dementia. It is unclear at what stage of Alzheimer's disease (AD) older adults stop driving and whether preclinical AD affects driving cessation. METHODS: Time to driving cessation was examined based on Clinical Dementia Rating (CDR) and AD cerebrospinal fluid biomarkers. 1795 older adults followed up to 24 years received CDR ratings. A subset (591) had cerebrospinal fluid biomarker measurements and was followed up to 17 years. Differences in CDR and biomarker groups as predictors of time to driving cessation were analyzed using Kaplan-Meier curves and Cox proportional models. RESULTS: Higher CDR scores and more abnormal biomarker measurements predicted a shorter time to driving cessation. DISCUSSION: Higher levels of AD biomarkers, including among individuals with preclinical AD, lead to earlier driving cessation. Negative functional outcomes of preclinical AD show a nonbenign phase of the disease. PMID- 29328929 TI - Eicosapentaenoic acid production from Nannochloropsis oceanica CY2 using deep sea water in outdoor plastic-bag type photobioreactors. AB - In this study, Nannochloropsis oceanica CY2 was grown in deep-sea water (DSW) based medium in 5-L plastic bag-type photobioreactors (PBRs) for the autotrophic production of Eicosapentaenoic acid (EPA, 20:5n-3). EPA production of N. oceanica CY2 was stimulated when it was grown in 100% DSW amended with 1.5 g L-1 NaNO3, achieving a EPA content of 3.1% and a biomass concentration of 3.3 g L-1. An outdoor-simulated microalgae cultivation system was also conducted to validate the feasibility of outdoor cultivation of the CY2 strain in plastic bag-type PBRs. Using an inoculum size of 0.6 g/L, the biomass concentration in the PBR culture was 3.5 g L-1, while the EPA content and productivity reached a maximal level of 4.12% and 7.49 mg L-1 d-1, respectively. When the PBRs were operated on semi-batch mode, the EPA productivity could further increase to 9.9 mg L-1 d-1 with a stable EPA content of 4.1%. PMID- 29328930 TI - Enhanced treatment of petroleum refinery wastewater by short-term applied voltage in single chamber microbial fuel cell. AB - Electrochemically active anodic biofilm that has adapted under mild applied potentials in the range 100-500 mV was evaluated for its improved bioelectrogenesis and bioelectrochemical treatment of petroleum refinery wastewater (PRW) in a single chamber air cathode microbial fuel cell (MFC). MFC operation with 500 mV as supplemental voltage has exhibited a maximum power density of 132 mW/m2, which was three times higher than control MFC (45 mW/m2). Similarly, highest substrate removal efficiency (48%) was also obtained with the MFC of 500 mV, followed by 300 mV (37%), 100 mV (32%) and control (27%). Adaptation under applied potential conditions also exhibited enhanced degradation efficiency of diesel range organics (DROs)/straight chain-alkanes. The strategy efficiently reduced DROs with the maximum efficiency of 89% (500 mV), which is almost 50% higher than that of the control system (59%), demonstrating the effectiveness of using supplemented voltage in treating PRW. PMID- 29328932 TI - Effective algal harvesting by using mesh membrane for enhanced energy recovery in an innovative integrated photobioelectrochemical system. AB - In this work, an innovative design of integrated photobioelectrochemcial system (IPB) and an algal harvesting method based on polyester-mesh membrane (MM) were investigated. The algal growth/harvesting period of 6 days led to the highest surface biomass productivity (SBP) of 0.88 g m-2 day-1 and the highest energy generation of 0.157 +/- 0.001 kJ day-1. The harvesting frequency of 3 times in an operational cycle (with three pieces of MM) enhanced the SBP to 1.14 g m-2 day-1. The catholyte recirculation for catholyte mixing resulted in a positive net energy production (NEP) of 0.227 +/- 0.025 kJ day-1. Those results have demonstrated the benefits of both using mesh membrane and the new reactor design for algal collection with positive effects on improving IPB performance. PMID- 29328931 TI - Biostimulation and bioaugmentation of native microbial community accelerated bioremediation of oil refinery sludge. AB - Scope for developing an engineered bioremediation strategy for the treatment of hydrocarbon-rich petroleum refinery waste was investigated through biostimulation and bioaugmentation approaches. Enhanced (46-55%) total petroleum hydrocarbon (TPH) attenuation was achieved through phosphate, nitrate or nitrate+phosphate amendment in the sludge with increased (upto 12%) abundance of fermentative, hydrocarbon degrading, sulfate-reducing, CO2-assimilating and methanogenic microorganisms (Bacillus, Coprothermobacter, Rhodobacter, Pseudomonas, Achromobacter, Desulfitobacter, Desulfosporosinus, T78, Methanobacterium, Methanosaeta, etc). Together with nutrients, bioaugmentation with biosurfactant producing and hydrocarbon utilizing indigenous Bacillus strains resulted in 57 75% TPH reduction. Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) analysis revealed enhanced gene allocation for transporters (0.45-3.07%), ABC transporters (0.38-2.07%), methane (0.16-1.06%), fatty acid (0.018-0.15%), nitrogen (0.07-0.17%), butanoate (0.06-0.35%), propanoate (0.004-0.26%) metabolism and some xenobiotics (0.007-0.13%) degradation. This study indicated that nutrient-induced community dynamics of native microorganisms and their metabolic interplay within oil refinery sludge could be a driving force behind accelerated bioremediation. PMID- 29328933 TI - Economic assessment of biodiesel production from wastewater sludge. AB - Currently, there are mainly two pathways of the biodiesel production from wastewater sludge including 1) directly extracting the lipid in sludge and then converting the lipid to biodiesel through trans-esterification, and 2) employing sludge as medium to cultivate oleaginous microorganism to accumulate lipid and then transferring the lipid to biodiesel. So far, the study was still in research stage and its cost feasibility was not yet investigated. In this study, biodiesel production from wastewater sludge was designed and the cost was estimated with SuperPro Designer. With consideration of converting the lipid in raw sludge to biodiesel, the unit production cost was 0.67 US $/kg biodiesel (0.59 US $/L biodiesel). When the sludge was used as medium to grow oleaginous microorganism to accumulate lipid for producing biodiesel, the unit production cost was 1.08 US $/kg biodiesel (0.94 US $/L biodiesel). The study showed that sludge has great potential in biodiesel production. PMID- 29328934 TI - Anaerobic co-digestion of coffee husks and microalgal biomass after thermal hydrolysis. AB - Residual coffee husks after seed processing may be better profited if bioconverted into energy through anaerobic digestion. This process may be improved by implementing a pretreatment step and by co-digesting the coffee husks with a more liquid biomass. In this context, this study aimed at evaluating the anaerobic co-digestion of coffee husks with microalgal biomass. For this, both substrates were pretreated separately and in a mixture for attaining 15% of total solids (TS), which was demonstrated to be the minimum solid content for pretreatment of coffee husks. The results showed that the anaerobic co-digestion presented a synergistic effect, leading to 17% higher methane yield compared to the theoretical value of both substrates biodegraded separately. Furthermore, thermal hydrolysis pretreatment increased coffee husks anaerobic biodegradability. For co-digestion trials, the highest values were reached for pretreatment at 120 degrees C for 60 min, which led to 196 mLCH4/gVS and maximum methane production rate of 0.38 d-1. PMID- 29328935 TI - Evaluation of robustness of activated sludge using calcium-induced enhancement of respiration. AB - Robustness of an activated sludge system, describing uncertainty and operational risk, was evaluated using the absence or presence of calcium-induced enhancement of respiration (CaER) effect. Generally, the fast-growing system was susceptible to external environmental variations, of which the sludge exhibited significant CaER effect under normal operational conditions, while the slow growing system showed less significant CaER effect. However, sludge in both systems exhibited CaER effect under stressed conditions of decreasing temperature or ammonia shocking. Therefore, the absence of CaER effect indicates a more robust system, while the presence of CaER effect indicates a susceptible system. Additionally, a method to identify safe and dangerous shocking was established by a hybrid usage of absence or presence of CaER effect and recovery index (RI) curve type. The evaluation of robustness could help determining when adjustment should be really taken to cope with the uncertainty, and thus holds a high promise for field application. PMID- 29328936 TI - Pyrolysis and reutilization of plant residues after phytoremediation of heavy metals contaminated sediments: For heavy metals stabilization and dye adsorption. AB - This study aimed to investigate the effect of pyrolysis on the stabilization of heavy metals in plant residues obtained after phytoremediation. Ramie residues, being collected after phytoremediation of metal contaminated sediments, were pyrolyzed at different temperatures (300-700 degrees C). Results indicated that pyrolysis was effective in the stabilization of Cd, Cr, Zn, Cu, and Pb in ramie residues by converting the acid-soluble fraction of metals into residual form and decreasing the TCLP-leachable metal contents. Meanwhile, the reutilization potential of using the pyrolysis products generated from ramie residues obtained after phytoremediation as sorbents was investigated. Adsorption experiments results revealed that the pyrolysis products presented excellent ability to adsorb methylene blue (MB) with a maximum adsorption capacity of 259.27 mg/g. This study demonstrated that pyrolysis could be used as an efficient alternative method for stabilizing heavy metals in plant residues obtained after phytoremediation, and their pyrolysis products could be reutilized for dye adsorption. PMID- 29328937 TI - Utilization of methanol in crude glycerol to assist lipid production in non sterilized fermentation from Trichosporon oleaginosus. AB - In this work, methanol in crude glycerol solution was used to assist the lipid production with oleaginous yeast Trichosporon oleaginosus cultivated under non sterilized conditions. The investigated methanol concentration was 0%, 1.4%, 2.2%, 3.3% and 4.4% (w/v). The results showed that methanol played a significant role in the non-sterilized fermentation for lipid production. The optimal methanol concentration was around 1.4% (w/v) in which the growth of T. oleaginosus was promoted and overcame that of the contaminants. The non sterilized fed-batch fermentation with initial methanol concentration of 1.4% (w/v) was then performed and high biomass production (43.39 g/L) and lipid production (20.42 g/L) were achieved. PMID- 29328938 TI - Time course of inhibition of return in a spatial cueing paradigm with distractors. AB - Studies of endogenous and exogenous attentional orienting in spatial cueing paradigms have been used to investigate inhibition of return, a behavioral phenomenon characterized by delayed reaction time in response to recently attended locations. When eye movements are suppressed, attention is covertly oriented to central or peripheral stimuli. Overt orienting, on the other hand, requires explicit eye movements to the stimuli. The present study examined the time course of slowed reaction times to previously attended locations when distractors are introduced into overt and covert orienting tasks. In a series of experiments, manual responses were required to targets following central and peripheral cues at three different cue-target intervals, with and without activated oculomotor systems. The results demonstrate that, when eye movements are suppressed, behavioral inhibition is reduced or delayed in magnitude by the presence of a distractor relative to conditions without distractors. However, the time course of behavioral inhibition when eye movements are required remains similar with or without distractors. PMID- 29328939 TI - Outcome of patients with uterine fibroids after 3-month ulipristal acetate therapy. AB - OBJECTIVES: To determine the proportion and the characteristics of patients who did or did not respond after 3 months of ulipristal acetate (UPA) therapy. STUDY DESIGN: In this retrospective cohort study conducted in the University Hospital of Bordeaux (France) and University Medical Center Ljubljana (Slovenia), symptomatic non-menopausal patients with fibroids that qualified for surgery were pretreated by 3 months of oral UPA 5 mg/day. Clinical success was defined by normalization of the bleeding score, and/or regression of pelvic pain, and/or abdominal distension. Imaging success was defined by reduction in fibroid volume >= 25%. RESULTS: The clinical and imaging success rates were 54/66 (82%) and 39/66 (59%) respectively. The absence of previous pregnancy (p = 0.004) and the size of the dominant fibroid >= 80 mm (p = 0.004) were independent factors associated with clinical failure. Age <35 years (p = 0.02) was the only independent factor associated with imaging failure. CONCLUSION: Young women developing fibroids and/or women with large fibroids may be resistant to ulipristal acetate therapy. PMID- 29328940 TI - First trimester serum biomarkers to predict gestational diabetes in a high-risk cohort: Striving for clinically useful thresholds. AB - OBJECTIVES: Screening and diagnosis of gestational diabetes (GDM) has been a source of controversy. The prevalence has increased in line with an obesity epidemic and a trend towards delayed child-bearing. Treatment of even modest glycaemic impairment in pregnancy has been shown to be beneficial in preventing its clinical sequalae. However the cumbersome nature and timing of the oral glucose tolerance test coupled with debate around universal versus risk factor based screening have been problematic. This group aimed to investigate a panel of biomarkers which have shown promise in the literature to predict GDM from the first trimester in a group of high risk women. METHODS: Serum samples were drawn on 248 women deemed at risk of GDM before 15 weeks' gestation to measure C reactive protein, sex hormone binding globulin, adiponectin and 1,5 anhydroglucitol. Patients underwent an oral glucose tolerance test as per IADPSG criteria at 28 weeks' gestation. Multiple logistic regression was used to examine the link between incidence of GDM and early pregnancy serum biomarkers. RESULTS: Adiponectin levels in the first trimester are independently linked to the risk of GDM. Serum adiponectin <8.9 MUg/ml gives an odds ratio of 3.3 for GDM.Mean 1,5 AG levels are significantly lower in those that go on to develop GDM. SHBG levels measured in the first trimester were linked to the risk of GDM. However, this was no longer statistically significant once BMI, ethnicity and family history were taken into consideration. First trimester measurement of CRP is not a useful indicator of GDM risk. CONCLUSIONS: First trimester measurement of Adiponectin and 1,5 Anhydroglucitol are potential early biomarkers for the later onset of GDM. Risk stratification using these biomarkers may facilitate early diagnosis and management of GDM to mitigate against its complications. PMID- 29328941 TI - Production of mono- to few-layer MoS2 nanosheets in isopropanol by a salt assisted direct liquid-phase exfoliation method. AB - Here, we report a facile salt-assisted direct liquid-phase exfoliation method for mass production of MoS2 nanosheets. We choose organic solvent isopropanol (IPA) as exfoliation media and potassium ferrocyanide, potassium sodium tartrate, or sodium tartrate as salt, the assistant. The selected salts show universal and efficient assistant effect for the exfoliation of MoS2 in IPA. Especially, potassium ferrocyanide (K4Fe(CN)6) can enhance the exfoliation efficiency up to 73 times and a dispersion of MoS2 nanosheets with concentration as high as 0.240 mg mL-1 can be easily obtained in IPA-K4Fe(CN)6 system. Transmission electron microscopy, atomic force microscopy (AFM), and Raman spectroscopy show that bulk MoS2 has been successfully exfoliated into mono- to few-layer MoS2 nanosheets. AFM analysis indicates that nearly 60% flakes are monolayer in MoS2 dispersion. PMID- 29328942 TI - Contact angle hysteresis effect on the thermocapillary migration of liquid droplets. AB - Thermocapillary migration describes a phenomenon where a liquid droplet spreads from warm to cold regions due to the interfacial tension gradients. Since the contact angle hysteresis effect is involved during the migration process, we consider the hysteresis effect and rectify the theoretical model to predict the migration velocity on solid surfaces. By conducting migration experiments on surfaces with different magnitudes of the hysteresis effect, we verify the validity of the theoretical derivation. This study advances the understanding of the interfacial phenomenon of thermocapillary migration, moreover, offers an insight into the migration capacity of different materials and guides the design of key components associated with the thermal gradients. PMID- 29328943 TI - Interval breast cancers in the 'screening with tomosynthesis or standard mammography' (STORM) population-based trial. AB - BACKGROUND & METHODS: The prospective 'screening with tomosynthesis or standard mammography' (STORM) trial recruited women participating in biennial breast screening in Italy (2011-2012), and compared sequential screen-readings based on 2D-mammography alone or based on tomosynthesis (integrated 2D/3D-mammography). The STORM trial showed that tomosynthesis screen-reading significantly increased breast cancer detection compared to 2D-mammography alone. The present study completes reporting of the trial by examining interval breast cancers ascertained at two year follow-up. RESULTS: 9 interval breast cancers were identified; the estimated interval cancer rate was 1.23/1000 screens [9/7292] (95%CI 0.56 to 2.34) or 1.24/1000 negative screens [9/7235] (95%CI 0.57 to 2.36). In concurrently screened women who attended the same screening services and received 2D-mammography, interval cancer rate was 1.60/1000 screens [40/25,058] (95% CI 1.14 to 2.17) or 1.61/1000 negative screens [40/24,922] (95% CI 1.15 to 2.18). Estimated screening sensitivity for the STORM trial was 85.5% [59/69] (95%CI 75.0%-92.8%), and that for 2D-mammography screening was 77.3% [136/176] (95%CI 70.4%-83.2%). CONCLUSION: Interval breast cancer rate amongst screening participants in the STORM trial was marginally lower (and screening sensitivity higher) than estimates amongst 2D-screened women; these findings should be interpreted with caution given the small number of interval cases and the sample size of the trial. Much larger screening studies, or pooled analyses, are required to examine interval cancer rates arising after breast tomosynthesis screening versus digital mammography screening. PMID- 29328944 TI - Analysis of the evolution of gross alpha and gross beta activities in airborne samples in Valencia (Spain). AB - Gross alpha (Aalpha) and gross beta activities (Abeta) were measured weekly in the airborne of the Universitat Politecnica de Valencia campus (in the east of Spain) during the period 2009-2015 (7 years). The geometric mean values of weekly Aalpha and Abeta were 0.53.10-4 Bq m-3 and 5.77.10-4 Bq m-3, respectively; with an average ratio Aalpha/Abeta of 0.097. This study highlights the heterogeneity of gross alpha and gross beta activities depending on the different periods of the year. Data show seasonal variations with the highest activity in summer months and the lowest one in winter months. Several atmospheric factors were considered in order to explain this intra-annual variation (wind speed, temperature, relative humidity, precipitations, dust content and prevailing wind directions). Multiple Linear Regression Analysis were performed in order to obtain information on significant atmospheric factors that affect gross alpha and gross beta variability, which could be useful in identifying meteorological or atmospheric changes that could cause deviations in gross alpha and gross beta activity depending on the seasons considered. Models obtained explain more than 60% of variability for global data, and also for winter and spring-autumn months. However, more research is needed to explain gross alpha and gross beta variability in summer months, because the atmospheric factors considered in the MLR explain less than 35% of variability. PMID- 29328945 TI - Astaxanthin ameliorates cerulein-induced acute pancreatitis in mice. AB - BACKGROUND: A various of pharmacological effects of astaxanthin has been confirmed. However, the mechanism underlying protective effect of astaxanthin on acute pancreatitis (AP) induced by cerulein still unclear. The present study is to investigate the mechanism underlying the effect of astaxanthin on autophagy and apoptosis via the JAK/STAT3 pathway. METHODS: Intraperitoneal injection of cerulein at hourly intervals followed by lipopolysaccharide injection were used in Balb/C mice. Vehicle or astaxanthin, which intraperitoneal injected in two doses (20 mg/kg and 40 mg/kg), were injected in mice 1 h before the first cerulein injection. At 3 h after the last injection, when the pathological changes were most severe, pancreatic tissue was analyzed by pathologically scored and hematoxylin and eosin (H&E) staining. The severity of AP was assessed by histological grading, proinflammatory cytokine levels, biochemistry, myeloperoxidase (MPO) activity, and analysis of JAK/STAT3 activity. RESULTS: Astaxanthin administration markedly reduced serum digestive enzyme activities, pancreatic histological scores, proinflammatory cytokine levels (tumor necrosis factor-alpha (TNF-alpha), Interleukin-1beta (IL-1beta), and Interleukin-6 (IL 6)), MPO and JAK/STAT3 activity. CONCLUSION: Collectively, these results indicate that astaxanthin inhibits pancreatic injury in AP by targeting JAK/STAT3-mediated apoptosis and autophagy. PMID- 29328946 TI - Kaempferol alleviates LPS-induced neuroinflammation and BBB dysfunction in mice via inhibiting HMGB1 release and down-regulating TLR4/MyD88 pathway. AB - Kaempferol is a natural flavonoid with many biological activities including anti oxidation and anti-inflammation. Nevertheless, its anti-neuroinflammation role and the relevant mechanism remain unclear. The present study was to investigate effects of kaempferol against LPS-induced neuroinflammation and blood-brain barrier dysfunction as well as the mechanism in mice. BALB/c mice were treated with LPS 5mg/kg to induce inflammation after pre-treatment with kaempferol 25, 50, or 100mg/kg for 7days. The results showed that kaempferol reduced the production of various pro-inflammatory factors and inflammatory proteins including IL-1beta, IL-6, TNF-alpha, MCP-1, COX-2 and iNOS in brain tissues. In addition, kaempferol also protected BBB integrity and increased BBB related proteins including occludin-1, claudin-1 and CX43 in brain of LPS-induced mice. Furthermore, kaempferol significantly reduced HMGB1 level and suppressed TLR4/MyD88 inflammatory pathway in both transcription level and translation level. These results collectively suggested that kaempferol might be a promising neuroprotective agent for alleviating inflammatory responses and BBB dysfunction by inhibiting HMGB1 release and down-regulating TLR4/MyD88 inflammatory pathway. PMID- 29328947 TI - Evaluating the role of repetitive negative thinking in the maintenance of social appearance anxiety: An experimental manipulation. AB - Social appearance anxiety (SAA), or fear of having one's appearance negatively evaluated by others, is a risk factor for eating pathology and social anxiety, but maintenance processes for SAA remain unclear. The current study evaluated repetitive negative thinking (RNT) as a process through which SAA is maintained over time. Undergraduates (N = 126) completed self-report measurements, made an impromptu speech task to induce SAA, and were randomized to either engage in RNT or distraction following the speech task. Participants then attended a second appointment one day later and were asked to make a second speech. Results indicated positive associations between self-reported trait SAA and RNT. Individuals asked to engage in RNT following the appointment 1 speech task reported significantly higher state SAA than those who engaged in distraction. Findings indicated no significant effect of group on appointment 2 SAA, but post hoc analyses suggested that naturally-occurring RNT may have accounted for increases in SAA across appointments. Overall, results provide support for the importance of RNT in maintaining various internalizing symptoms. PMID- 29328948 TI - Psychopathology and episodic future thinking: A systematic review and meta analysis of specificity and episodic detail. AB - Episodic future thinking (EFT) refers to the mental simulation of future events that might be personally-experienced; a crucial mental process in adaptation. Psychiatric disorders are associated with deficits in recalling episodic memory, however, no study has reviewed the empirical literature to assess for similar deficits in EFT. A systematic review comparing psychiatric groups with control groups on the specificity and episodic detail of EFT returned 19 eligible studies. An overall effect of g = -0.84 (95%CI = -1.06, - 0.62, p < .001) indicated individuals with a psychiatric diagnosis have significantly less specific and detailed EFT. Publication bias was not detected, but heterogeneity was. No methodological characteristics were significant moderators. Subgroup analyses showed significant effects for depression (g = -0.79, p < .001, k = 7), bipolar disorder (g = -1.00, p < .001, k = 2), and schizophrenia (g = -1.06, p < .001, k = 6), but not posttraumatic stress disorder (g = -1.04, p = .260, k = 2) or complicated grief (g = -0.41, p = .08, k = 2). Deficits in EFT are apparent in some psychiatric disorders. However, many clinical groups are understudied, and the causal mechanisms and remediation of these deficits require further research attention. PMID- 29328949 TI - Conditionals and inferential connections: A hypothetical inferential theory. AB - Intuition suggests that for a conditional to be evaluated as true, there must be some kind of connection between its component clauses. In this paper, we formulate and test a new psychological theory to account for this intuition. We combined previous semantic and psychological theorizing to propose that the key to the intuition is a relevance-driven, satisficing-bounded inferential connection between antecedent and consequent. To test our theory, we created a novel experimental paradigm in which participants were presented with a soritical series of objects, notably colored patches (Experiments 1 and 4) and spheres (Experiment 2), or both (Experiment 3), and were asked to evaluate related conditionals embodying non-causal inferential connections (such as "If patch number 5 is blue, then so is patch number 4"). All four experiments displayed a unique response pattern, in which (largely determinate) responses were sensitive to parameters determining inference strength, as well as to consequent position in the series, in a way analogous to belief bias. Experiment 3 showed that this guaranteed relevance can be suppressed, with participants reverting to the defective conditional. Experiment 4 showed that this pattern can be partly explained by a measure of inference strength. This pattern supports our theory's "principle of relevant inference" and "principle of bounded inference," highlighting the dual processing characteristics of the inferential connection. PMID- 29328950 TI - Ultrastructural damage in Streptococcus mutans incubated with saliva and histatin 5. AB - OBJECTIVE: To study the ultrastructural alterations induced in Streptococcus mutans (ATCC 25175) incubated with saliva, saliva plus histatin 5 and histatin 5. METHODS: S. mutans incubated with saliva histatin 5 or a combination of both were morphologically analyzed and counted. The results were expressed as (CFU)ml-1. Ultrastructural damage was evaluated by transmission electron microscopy. Ultrastructural localization of histatin 5 was examined using immunogold labeling. Apoptotic cell death was determined by flow cytometry (TUNEL). RESULTS: A decrease in the bacteria numbers was observed after incubation with saliva, saliva with histatin 5 or histatin 5 compared to the control group (p<0.0001). Ultrastructural damage in S. mutans incubated with saliva was found in the cell wall. Saliva plus histatin 5 induced a cytoplasmic granular pattern and decreased the distance between the plasma membrane bilayers, also found after incubation with histatin 5, together with pyknotic nucleoids. Histatin 5 was localized on the bacterial cell walls, plasma membranes, cytoplasm and nucleoids. Apoptosis was found in the bacteria incubated with saliva (63.9%), saliva plus histatin 5 (71.4%) and histatin 5 (29.3%). Apoptosis in the control bacteria was 0.2%. CONCLUSIONS: Antibacterial activity against S. mutans and the morphological description of damage induced by saliva and histatin 5 was demonstrated. Pyknotic nucleoids observed in S. mutans exposed to saliva, saliva plus histatin 5 and histatin 5 could be an apoptosis-like death mechanism. The knowledge of the damage generated by histatin 5 and its intracellular localization could favor the design of an ideal peptide as a therapeutic agent. PMID- 29328952 TI - Synthesis, structures and photophysical properties of two regioisomeric phenalenocarbazoles. AB - Two regioisomeric phenalenocarbazoles have been synthesized by direct reductive cyclization of 2'-Nitrophenyl-pyrene isomers respectively. Their photophysical properties and crystal structures as well as CV properties were investigated and compared with those of sulfur containing analogues. Although the fluorescence emission properties of 1N are very similar with those of 2N, the HOMO energy level of 1N is 0.16eV higher than that of 2N indicating that 1N has better electron donating ability. PMID- 29328951 TI - Epoxy matrix with triaromatic mesogenic unit in dielectric spectroscopy observation. PMID- 29328953 TI - The binding interaction of imazapyr with cucurbit[n]uril (n=6-8): Combined experimental and molecular modeling study. AB - The inclusion complexes of imazapyr (IMA) with cucurbit[n]uril, CB[n] (n=6-8), have been investigated. Fluorescence spectroscopy, MALDI-TOF, and 1HNMR were used to investigate and characterize the inclusion complexation of IMA and CB[n] in solutions. Whereas the solid state complexes have been characterized by Fourier transform infrared spectroscopy (FTIR), and powder X-ray diffraction (PXRD). IMA was found to form 1:1 complexes with CB[n] with association constants ranging from 5.80*102-2.65*103. The guest molecule IMA was found to encapsulate into the larger cavities of CB[7] and CB[8], whereas with CB[6] the molecule remains outside the cavity. Molecular dynamic (MD) simulations were used to follow the inclusion process at an atomistic level to study the mechanism and stability of inclusion. The results obtained showed that inclusion complexes of IMA with both CB[7] and CB[8] are highly stable in aqueous media, but the CB[6] smaller cavity size prohibited the formation of an inclusion complex with IMA. The results clearly show that in addition to hydrophobic effects the presence of hydrogen bonding has added greatly to the stability of these complexes. PMID- 29328955 TI - Investigation of carbonates in the Sutter's Mill meteorite grains with hyperspectral infrared imaging micro-spectroscopy. AB - Synchrotron-based high spatial resolution hyperspectral infrared imaging technique provides thousands of infrared spectra with high resolution, thus allowing us to acquire detailed spatial maps of chemical molecular structures for many grains in short times. Utilizing this technique, thousands of infrared spectra were analyzed at once instead of inspecting each spectrum separately. Sutter's Mill meteorite is a unique carbonaceous type meteorite with highly heterogeneous chemical composition. Multiple grains from the Sutter's Mill meteorite have been studied using this technique and the presence of both hydrous and anhydrous silicate minerals have been observed. It is observed that the carbonate mineralogy varies from simple to more complex carbonates even within a few microns in the meteorite grains. These variations, the type and distribution of calcite-like vs. dolomite-like carbonates are presented by means of hyperspectral FTIR imaging spectroscopy with high resolution. Various scenarios for the formation of different carbonate compositions in the Sutter's Mill parent body are discussed. PMID- 29328954 TI - Probing the stereoselective interaction of ofloxacin enantiomers with corresponding monoclonal antibodies by multiple spectrometry. AB - Although stereoselective antibody has immense potential in chiral compounds detection and separation, the interaction traits between stereoselective antibody and the corresponding antigenic enantiomers are not yet fully exploited. In this study, the stereospecific interactions between ofloxacin isomers and corresponding monoclonal antibodies (McAb-WR1 and McAb-MS1) were investigated using time-resolved fluorescence, steady-state fluorescence, and circular dichroism (CD) spectroscopic methods. The chiral recognition discrepancies of antibodies with ofloxacin isomers were reflected through binding constant, number of binding sites, driving forces and conformational changes. The major interacting forces of McAb-WR1 and McAb-MS1 chiral interaction systems were hydrophobic force and van der Waals forces joined up with hydrogen bonds, respectively. Synchronous fluorescence spectra and CD spectra results showed that the disturbing of tyrosine and tryptophan micro-environments were so slightly that no obvious secondary structure changes were found during the chiral hapten binding. Clarification of stereospecific interaction of antibody will facilitate the application of immunoassay to analyze chiral contaminants in food and other areas. PMID- 29328956 TI - Predicting post-breakup distress and growth in emerging adulthood: The roles of relationship satisfaction and emotion regulation. AB - With a sample of emerging adults (N = 110; 72% female) this brief report utilized self-report measures to examine the role of relationship satisfaction and emotion regulation strategies assessed at age 20 in predicting breakup distress and posttraumatic growth three years later. Results showed that higher relationship satisfaction is associated with less future breakup distress. Emotion regulation explained the ways individuals cope with distress; cognitive appraisal (in contrast to emotional suppression) predicted higher growth after experiencing a breakup. Findings highlight the ways emotion regulation strategies can help emerging adults cope with relational stressors such as breakups. PMID- 29328957 TI - Sphingolipids in host-microbial interactions. AB - Sphingolipids, a lipid class characterized by a long-chain amino alcohol backbone, serve vital structural and signaling roles in eukaryotes. Though eukaryotes produce sphingolipids, this capacity is phylogenetically highly restricted in Bacteria. Intriguingly, bacterial species commonly associated in high abundance with eukaryotic hosts include sphingolipid producers, such as the Bacteroidetes in the mammalian gut. To date, a role for bacterial sphingolipids in immune system maturation has been described, but their fate and impact in host physiology and metabolism remain to be elucidated. The structural conservation of bacterial sphingolipids with those produced by their mammalian hosts offer clues about which aspects of mammalian biology may be modulated by these intriguing lipids. PMID- 29328958 TI - STDP-based spiking deep convolutional neural networks for object recognition. AB - Previous studies have shown that spike-timing-dependent plasticity (STDP) can be used in spiking neural networks (SNN) to extract visual features of low or intermediate complexity in an unsupervised manner. These studies, however, used relatively shallow architectures, and only one layer was trainable. Another line of research has demonstrated - using rate-based neural networks trained with back propagation - that having many layers increases the recognition robustness, an approach known as deep learning. We thus designed a deep SNN, comprising several convolutional (trainable with STDP) and pooling layers. We used a temporal coding scheme where the most strongly activated neurons fire first, and less activated neurons fire later or not at all. The network was exposed to natural images. Thanks to STDP, neurons progressively learned features corresponding to prototypical patterns that were both salient and frequent. Only a few tens of examples per category were required and no label was needed. After learning, the complexity of the extracted features increased along the hierarchy, from edge detectors in the first layer to object prototypes in the last layer. Coding was very sparse, with only a few thousands spikes per image, and in some cases the object category could be reasonably well inferred from the activity of a single higher-order neuron. More generally, the activity of a few hundreds of such neurons contained robust category information, as demonstrated using a classifier on Caltech 101, ETH-80, and MNIST databases. We also demonstrate the superiority of STDP over other unsupervised techniques such as random crops (HMAX) or auto encoders. Taken together, our results suggest that the combination of STDP with latency coding may be a key to understanding the way that the primate visual system learns, its remarkable processing speed and its low energy consumption. These mechanisms are also interesting for artificial vision systems, particularly for hardware solutions. PMID- 29328959 TI - Impact of individual and neighborhood factors on disparities in prostate cancer survival. AB - BACKGROUND: We addressed the hypothesis that individual-level factors act jointly with social and built environment factors to influence overall survival for men with prostate cancer and contribute to racial/ethnic and socioeconomic (SES) survival disparities. METHODS: We analyzed multi-level data, combining (1) individual-level data from the California Collaborative Prostate Cancer Study, a population-based study of non-Hispanic White (NHW), Hispanic, and African American prostate cancer cases (N = 1800) diagnosed from 1997 to 2003, with (2) data on neighborhood SES (nSES) and social and built environment factors from the California Neighborhoods Data System, and (3) data on tumor characteristics, treatment and follow-up through 2009 from the California Cancer Registry. Multivariable, stage-stratified Cox proportional hazards regression models with cluster adjustments were used to assess education and nSES main and joint effects on overall survival, before and after adjustment for social and built environment factors. RESULTS: African American men had worse survival than NHW men, which was attenuated by nSES. Increased risk of death was associated with residence in lower SES neighborhoods (quintile 1 (lowest nSES) vs. 5: HR = 1.56, 95% CI: 1.11 2.19) and lower education ( 108.1 for deferasirox and m/z 430.1 -> 372.2 for the IS. The method exhibited good linearity over the concentration range of 0.04-40 MUg/mL for deferasirox. The method was successfully applied to a pharmacokinetic study in 10 Chinese healthy volunteers after oral administration of deferasirox. PMID- 29328982 TI - Systematic identification of suspected anthelmintic benzimidazole metabolites using LC-MS/MS. AB - Metabolite reference standards are often not available, which results in a lack of MS/MS spectra for library matching. Consequently, the identification of suspected metabolites proves to be challenging. The present study aims at structurally elucidating the MS/MS fragmentation behavior of selected benzimidazole anthelmintics to theoretically predict characteristic product ions for rapid and systematic tentative metabolite identification. A set of common characteristic product ions was identified from accurate mass MS/MS experiments for five parent compounds. It was hypothesized that the mass shift of any metabolic transformation at the parent molecule also is observable in the mass spectrum of the corresponding metabolite. This was tested and verified with six metabolite reference standards and subsequently, formulated as a general prediction scheme. The approach was integrated into a rapid MSe QTOF workflow and tested in mouse plasma for mebendazole and its metabolites. The presented scheme allows the prediction of characteristic product ions for suspected unknown metabolites. These can be matched with measured product ions of suspected metabolites for tentative identification. The theoretically predicted spectra can contribute to the tentative identification of unknown compounds in non-target and suspect screening approaches. PMID- 29328983 TI - Social and cognitive control skills in long-life occupation activities modulate the brain reserve in the behavioural variant of frontotemporal dementia. AB - BACKGROUND: Cognitive reserve may delay disease onset and mitigate symptoms presentation in neurodegenerative dementias. Although high occupation levels can be associated with higher cognitive reserve in the behavioural variant of frontotemporal dementia (bvFTD), it was never addressed how specific occupation profiles involving social interaction, executive and attention abilities can modulate neural reserve in bvFTD. MATERIALS AND METHODS: We retrospectively included thirty-seven bvFTD patients with clinical-neuropsychological and FDG-PET brain metabolic data. We considered occupation levels according to 1) a 5-point scale and 2) the specific cognitive dimensions from the O*Net network database. We used the Principal Component Analysis (PCA) with the O*Net variables most representative of "worker" and "occupation" socio-cognitive skills to merge the best components describing such occupation profiles. We then performed regression analyses with brain metabolism using either 5-level occupation scale or the PCA specific profiles as independent variables, controlling for education and disease severity. RESULTS: According to the brain reserve hypothesis, higher occupation levels were associated with a more severe hypometabolism in the dorsolateral prefrontal cortex. In addition, among the identified PCA profiles, social skills were associated with severe hypometabolism in medial and dorsolateral prefrontal regions, and cognitive control in the left fronto-insular cortex. DISCUSSION: This study contributes to define the role of specific occupation profiles as proxy of cognitive reserve in bvFTD, providing the first evidence for social interaction and cognitive control skills in life-occupation activities as influencing factors of neural reserve against neurodegeneration in bvFTD. Jobs placing high demand on such abilities seem to act as protective factors in bvFTD. PMID- 29328984 TI - Does college major matter for women's and men's health in midlife? Examining the horizontal dimensions of educational attainment. AB - Studies on how education shapes adult health have largely conceptualized education as the quantity of schooling attained, coined the "vertical dimension" of education. While this dimension is important, heterogeneity within levels of education (the "horizontal dimension") may also shape health. Using data from the 2010-2014 American Community Survey on adults aged 45-64 with a Bachelor's degree (N = 667,362), we investigate the association between a key indicator of adult health (physical functioning) and an understudied horizontal dimension of education (college major). We find that physical functioning in midlife varies significantly by college major. For instance, the odds of poor functioning for men who majored in Psychology/Social Work were 1.9 (95% CI: 1.7, 2.1) times greater than for men who majored in Business. However, all college graduates, regardless of major, report better functioning than non-graduates. We also find that inequalities in midlife functioning across majors largely reflect differences in human capital skills and financial returns in the labor market. Taken together our findings suggest that college major is an important component of health stratification and should be integrated into the literature on health inequalities. PMID- 29328986 TI - Post-anaerobic digestion thermal hydrolysis of sewage sludge and food waste: Effect on methane yields, dewaterability and solids reduction. AB - Post-anaerobic digestion (PAD) treatment technologies have been suggested for anaerobic digestion (AD) to improve process efficiency and assure hygenization of organic waste. Because AD reduces the amount of organic waste, PAD can be applied to a much smaller volume of waste compared to pre-digestion treatment, thereby improving efficiency. In this study, dewatered digestate cakes from two different AD plants were thermally hydrolyzed and dewatered, and the liquid fraction was recirculated to a semi-continuous AD reactor. The thermal hydrolysis was more efficient in relation to methane yields and extent of dewaterability for the cake from a plant treating waste activated sludge, than the cake from a plant treating source separated food waste (SSFW). Temperatures above 165 degrees C yielded the best results. Post-treatment improved volumetric methane yields by 7% and the COD reduction increased from 68% to 74% in a mesophilic (37 degrees C) semi continuous system despite lowering the solid retention time (from 17 to 14 days) compared to a conventional system with pre-treatment of feed substrates at 70 degrees C. Results from thermogravimetric analysis showed an expected increase in maximum TS content of dewatered digestate cake from 34% up to 46% for the SSFW digestate cake, and from 17% up to 43% in the sludge digestate cake, after the PAD thermal hydrolysis process (PAD-THP). The increased dewatering alone accounts for a reduction in wet mass of cake leaving the plant of 60% in the case of sludge digestate cake. Additionaly, the increased VS-reduction will contribute to further reduce the mass of wet cake. PMID- 29328985 TI - Standing on a sliding board affects generation of anticipatory and compensatory postural adjustments. AB - Postural control is compromised in the presence of body instability. We studied anticipatory and compensatory postural adjustments people use to maintain balance while standing on an unstable surface and performing voluntary arm movements. Nine healthy participants stood on a sliding board (that was either locked and as such motionless or unlocked and as such free to move in the anterior-posterior direction) and performed fast bilateral arms flexion. Arm acceleration, bilateral electromyographic activity (EMG) of the trunk and lower extremity muscles and center of pressure (COP) displacements were recorded and analyzed within the intervals typical for the anticipatory (APAs) and compensatory (CPAs) postural adjustments. Peaks of acceleration of the arm movements were not different between the locked and unlocked conditions. Larger EMG integrals were seen in the muscles of the lower extremity in both APAs and CPAs when standing on the unlocked sliding board. No significant difference was observed in the trunk muscles. Larger maximum COP displacement was seen when participants stood on the locked board. The results demonstrated that when standing on a free to move sliding board and performing bilateral arm flexion, the central nervous system (CNS) does not slow down the arm movements; instead it modifies activation of the lower extremity muscles. The observed differences in APAs and CPAs between the locked and unlocked conditions suggest that the CNS employs similar strategy while controlling the focal part of the task and adjusts the activity of muscles that are close to the source of instability to control postural task. PMID- 29328987 TI - Total mercury content in commercial swordfish (Xiphias gladius) from different FAO fishing areas. AB - Mercury (Hg) is a global pollutant that affect human and ecosystem health. It is transferred through trophic level and bio magnification in the food chain. In this study, total Hg was measured in the muscular tissue of samples of swordfish (Xiphias gladius) from different FAO fishing areas and imported in Italy between 2014 and 2017. Total mercury concentrations of muscular tissues were determined using cold vapour atomic absorption spectrometry. In order to assess the health risk associated with human consumption of this fish, the Hg intake values were calculated and compared with those of provisional tolerable daily intake (PTDI) (0.57 MUg/kg b.w.) as fixed by the Food and Agriculture Organization/World Health Organization (FAO/WHO). The estimated PTDI (provisional tolerable daily intake) were lower for adults (0.40 MUg/kg b.w./day) but not for children (0.97 MUg/kg b.w./day), and therefore is considered to pose an alert for children with the present fish consumption volume. PMID- 29328988 TI - Carboxymethyl cellulose stabilized ZnO/biochar nanocomposites: Enhanced adsorption and inhibited photocatalytic degradation of methylene blue. AB - Biochar(BC)-supported nanoscaled zinc oxide (nZO) was encapsulated either with (nZORc/BC) or with no (nZOR/BC) sodium carboxymethyl cellulose (CMC). The X-ray diffraction and ultraviolet (UV)-visible-near infrared spectrophotometry revealed that nZO of 16, 10, and 20 nm with energy band gaps of 2.79, 3.68 and 2.62 eV were synthesized for nZOR/BC, nZORc/BC and nZO/BC, respectively. The Langmuir isotherm predicted saturated sorption of methylene blue (MB) was 17.01 g kg-1 for nZORc/BC, over 19 times greater than nZOR/BC and nZO/BC. Under UV irradiation, 10.9, 61.6, 83.1, and 41.6% of MB were degraded for nZORc/BC, nZO/BC, nZOR/BC and BC. The scavenging experiment revealed hydroxyl radical dominated CMC degradation. Exogenous CMC (2 g L-1) increased MB sorption from 10.6% to 73.1%, but decreased MB degradation from 80.7% to 41.1%, relative to nZOR/BC. Thus, CMC could increase MB sorption by electrostatic attraction and other possible mechanisms. The compromised MB degradation may be ascribed to reduced availability of hydroxyl and superoxide radicals to degrade MB, and increased band gap energy of ZnO. PMID- 29328989 TI - Inhibition of UDP-glucuronosyltransferases (UGTs) by phthalate monoesters. AB - Phthalate monoesters are important metabolites of phthalate esters (PAEs) which have been extensively utilized in industry. This study aims to investigate the inhibition of phthalate monoesters on the activity of various isoforms of UDP glucuronosyltransferases (UGTs), trying to elucidate the toxicity mechanism of environmental endocrine disruptors from the new perspectives. In vitro recombinant UGTs-catalyzed glucuronidation of 4-methylumbelliferone (4-MU) was employed to evaluate 8 kinds of phthalate monoesters on 11 sorts of main human UGT isoforms. 100 MUM phthalate monoesters exhibited negligible inhibition towards the activity of UGT1A1, UGT1A3, UGT1A6, UGT1A8, UGT1A10, UGT2B4, UGT2B7, UGT2B15 and UGT2B17. The activity of UGT1A7 was strongly inhibited by monoethylhexyl phthalate (MEHP), but slightly inhibited by all the other phthalate monoesters. UGT1A9 was broadly inhibited by monobenzyl phthalate (MBZP), monocyclohexyl phthalate (MCHP), MEHP, monohexyl phthalate (MHP) and monooctyl phthalate (MOP), respectively. MEHP exhibited competitive inhibition towards UGT1A7, and MBZP, MCHP, MEHP, MHP and MOP showed competitive inhibition towards UGT1A9. The inhibition kinetic parameters (Ki) were calculated to be 11.25 MUM for MEHP-UGT1A7, and 2.13, 0.09, 1.17, 7.47, 0.16 MUM for MBZP-UGT1A9, MCHP-UGT1A9, MEHP-UGT1A9, MHP-UGT1A9, MOP-UGT1A9, respectively. Molecular docking indicated that both hydrogen bonds formation and hydrophobic interactions significantly contributed to the interaction between phthalate monoesters and UGT isoforms. All these information will be beneficial for understanding the adverse effects of PAEs. PMID- 29328991 TI - Comparison of effects of charge delocalization and pi-electron delocalization on the stability of monocyclic compounds. AB - Aromaticities and stabilities of ortho, meta, and para isomers of some derivatives of benzene, C5H5- and C7H7+ were studied and compared basis on the NICS index and their relative energies. For the benzene and C7H7+ derivatives, the ortho isomers with less stability were more aromatic. This discrepancy was also observed for the molecules with conjugated and non-conjugated pi-electrons. However, for the charged conjugated systems, the structures with delocalized charge were more stable. Effect of electron withdrawing (EWGs) and electron donating groups (EDGs) on the electron delocalization and stability of the neutral and charged molecules was investigated. It was observed that the EWDs and EDGs change the stability trend of the neutral systems, while in the case of charged molecules, the isomers with delocalized charge were more stable regardless of the type of substituents. Although both pi-electron delocalization and charge delocalization stabilize the aromatic and conjugated systems, effect of charge delocalization on the stability is more than that of pi-electron delocalization. PMID- 29328990 TI - The amyloidogenicity of the influenza virus PB1-derived peptide sheds light on its antiviral activity. AB - The influenza virus polymerase complex is a promising target for new antiviral drug development. It is known that, within the influenza virus polymerase complex, the PB1 subunit region from the 1st to the 25th amino acid residues has to be is in an alpha-helical conformation for proper interaction with the PA subunit. We have previously shown that PB1(6-13) peptide at low concentrations is able to interact with the PB1 subunit N-terminal region in a peptide model which shows aggregate formation and antiviral activity in cell cultures. In this paper, it was shown that PB1(6-13) peptide is prone to form the amyloid-like fibrillar aggregates. The peptide homo-oligomerization kinetics were examined, and the affinity and characteristic interaction time of PB1(6-13) peptide monomers and the influenza virus polymerase complex PB1 subunit N-terminal region were evaluated by the SPR and TR-SAXS methods. Based on the data obtained, a hypothesis about the PB1(6-13) peptide mechanism of action was proposed: the peptide in its monomeric form is capable of altering the conformation of the PB1 subunit N-terminal region, causing a change from an alpha helix to a beta structure. This conformational change disrupts PB1 and PA subunit interaction and, by that mechanism, the peptide displays antiviral activity. PMID- 29328992 TI - Transcriptome-wide identification and competitive disruption of sacum-binding partners in human colorectal cancer. AB - Human sacum is regulatory adaptor protein involved in cellular signaling network of colorectal cancer. Molecular evidences suggest that the protein is integrated into oncogenic signaling network by binding to SH3-containing proteins through its proline-rich motifs. In this study, we have performed a transcriptome-wide analysis and identification of sacum-binding partners in the genome profile of human colorectal cancer. The sacum-binding potency of SH3-containing proteins found in colorectal cancer was investigated by using bioinformatics modeling and intermolecular binding analysis. With the protocol we were able to predict those high-affinity domain binders of the proline-rich peptides of human sacum in a high-throughput manner, and to analyze sequence-specific interaction in the domain-peptide recognition at molecular level. Consequently, a number of putative domain binders with both high affinity and specificity were identified, from which the Src SH3 domain was selected as a case study and tested for its binding activity towards the sacum peptides. We also designed two peptide variants that may have potent capability to competitively disrupt sacum interaction with its partners. PMID- 29328993 TI - Activity-based classification circumvents affinity prediction problems for pyrrolidine carboxamide inhibitors of InhA. AB - Developing reliable structure-based activity prediction models for a particular ligand series can be challenging if the target is flexible and the affinity range of the training compounds is narrow. For a data set of 44 pyrrolidine carboxamide inhibitors of the mycobacterial enoyl-ACP-reductase InhA this proved to be case, as scoring methods of various origin and complexity did not succeed in providing practically useful correlations with experimental inhibition data. In contrast, logistic regression models for activity-based classification trained with combinations of scoring functions led to good separation of the more active inhibitors from the weakest compounds. The approach is suggested as an alternative in cases where classical scoring and ranking procedures fail. PMID- 29328994 TI - Does high pressure have any effect on the structure of alpha amylase and its ability to binding to the oligosaccharides having 3-7 residues? Molecular dynamics study. AB - Studies have shown that deletion of amino acids from the C-terminus of amylase do not alter its amylolytic activity. Although high pressure is used to modify the structure and function of this enzyme, the effects of high pressures on the structures of the wild-type and truncated amylases have not yet been understood at the molecular level. Using molecular dynamic simulations and docking, we studied the structures of wild-type and truncated Taka-amylases at high pressures (1000-4000 bar). To construct the truncated Taka-amylase, 50 and 100 C-terminal residues were removed in two separate steps. Results of simulation showed that, although the overall shape partly agglomerates with rise in pressure, high pressure fails to modify the structure of the barrel-like region of the beta sheet in the wild-type and truncated enzymes. A comparison of contact graphs revealed that the changes at the N-terminus were less extensive than those at the C-terminus. Further analysis showed that 10 regions of the secondary structures changed due to pressure change in wild-type amylase, of which 6 regions were associated with the loops and 4 with helix, while the structure of beta-sheets remained unchanged. The docking of maltotriose, maltotetraose, maltopentaose, maltohexaose, and maltoheptaose with the averaged structures obtained from different simulations was conducted to characterize the influence of pressure on the activities of the wild-type and truncated enzymes. The results showed that maltoheptaose made hydrophobic contacts with residues Tyr238-Asp117-Tyr82-Leu166 Leu232-Tyr155 and hydrogen contacts with residues Asp233-Gly234-Asp206-Arg204 His296-Glu230. Similar results were obtained for other malto-oligosaccharides. PMID- 29328995 TI - FilTer BaSe: A web accessible chemical database for small compound libraries. AB - Finding novel chemical agents for targeting disease associated drug targets often requires screening of large number of new chemical libraries. In silico methods are generally implemented at initial stages for virtual screening. Filtering of such compound libraries on physicochemical and substructure ground is done to ensure elimination of compounds with undesired chemical properties. Filtering procedure, is redundant, time consuming and requires efficient bioinformatics/computer manpower along with high end software involving huge capital investment that forms a major obstacle in drug discovery projects in academic setup. We present an open source resource, FilTer BaSe- a chemoinformatics platform (http://bioinfo.net.in/filterbase/) that host fully filtered, ready to use compound libraries with workable size. The resource also hosts a database that enables efficient searching the chemical space of around 348,000 compounds on the basis of physicochemical and substructure properties. Ready to use compound libraries and database presented here is expected to aid a helping hand for new drug developers and medicinal chemists. PMID- 29328996 TI - Acute and sub-acute neurological toxicity in children treated for acute lymphoblastic leukemia. AB - Eighty percent of children with acute lymphoblastic leukemia (ALL) survive with current treatments. Neurotoxicity is an infrequent adverse event. We describe clinical presentations of neurological toxicity, phases of treatment when these adverse events were more frequent and patients outcome. From January-1995 to December-2015, 1379 ALL cases were admitted. Neurotoxicity was diagnosed in 49 patients (3.6%) and classified according to neurological syndromes. Medical records, laboratory-tests and images were reviewed. The diagnosed syndromes were: a) Methotrexate-leukoencephalopathy (MLE) (35.4%); b) Cerebral-venous-sinus thrombosis following L-Asparaginase administration (26.5%); c) Vincristine induced-vocal-cord paralysis (VVCP) (14.2%); d) Stroke-associated vasospasm (14%), after high-dose methotrexate e) Severe polyneuropathy (6.1%); f) Methotrexate myelopathy (2%); and g) Pseudotumor-cerebri (2%) associated with corticosteroid therapy. Neurotoxicity was diagnosed during induction in 55% of cases. We conclude that MLE was the most frequent syndrome. VVCP was observed in infants and Down patients. Seizure was the most common symptom and toxicity occurred mainly during induction phase. PMID- 29328997 TI - Synthesis, biological evaluation and molecular modeling of novel thienopyrimidinone and triazolothienopyrimidinone derivatives as dual anti inflammatory antimicrobial agents. AB - New thienopyrimidinone and triazolothienopyrimidinone derivatives have been synthesized. These compounds were subjected to anti-inflammatory and antimicrobial activity screening aiming to identify new candidates that have dual anti-inflammatory and antimicrobial activities. Compounds 5, 7 and 10a showed minimal ulcerogenic effect and high selectivity towards human recombinant COX-2 over COX-1 enzyme. Their docking outcome correlated with their biological activity and assured the high selectivity binding towards COX-2. In addition, they could act safely up to 80 mg/kg orally or 40 mg/kg parentrally. The antimicrobial screening showed that compound 10a displayed distinctive inhibitory effect on the growth of Escherichia coli comparable to that of ampicillin. Moreover, compounds 5, 7, 9 and 12a possessed 50% of the inhibitory activity of ampicillin against E. coli. Thus, compounds 5, 7 and 10a represent promising dual acting anti-inflammatory and antimicrobial agents. This work provides rewarding template enriching the chemical space for dual anti-inflammatory anti-microbial activities. PMID- 29328998 TI - Immunization of mice with egG1Y162-1/2 provides protection against Echinococcus granulosus infection in BALB/c mice. AB - AIMS: This study is to predict and purify the T-B combined epitopes of egG1Y162 antigen in Echinococcus granulosus, and to evaluate their immunogenicity in mice. METHODS: The bioinformatics software was used to predict the T-B combined epitopes of egG1Y162 antigen. Recombinant egG1Y161/2 peptides were constructed, expressed and purified. Mice were immunized with egG1Y161/2 peptides. The serum and spleen cells were isolated. The isolated spleen cells were stimulated with egG1Y161/2 peptides in vitro and the culture supernatant was collected. The levels of IgG in serum and levels of IL-4 and IFN-gamma in the culture supernatant were measured by ELISA. The weight and number of the fresh hydatid cysts were evaluated. The serum ptotoscolicidal activity was measured by the complement dependent cytotoxicity assay. RESULTS: Peptides of 6-19aa, 64-82aa, 106-119aa were predicted as T-B combined epitopes of egG1Y162 antigen. And, recombinant protein egG1Y162-1 or egG1Y162-2, which contained T-B combined epitope(s) of the 6-19aa, or the 64-82aa and the 106-119aa in egG1Y162 antigen, respectively, was successfully expressed and purified. Serum IgG levels of mice immunized with egG1Y162-1/2 were significantly increased during the immune response to Echinococcus granulosus. The levels of IFN-gamma, IL-4 and the ratio of IFN-gamma/IL-4 after egG1Y162-1/2 immunization were significantly higher. Weight and number of the fresh hydatid cysts in egG1Y162-1/2 immunized mice was significantly decreased. And, the serum protoscolicidal activity after egG1Y162 1/2 immunization was enhanced. CONCLUSIONS: The egG1Y162-1/2 induces production of serum IgG levels and Th1 cell immune response, which enhances the protective immunity in Echinococcus granulosus challenged mice and thus may be used as a potential vaccine candidate. PMID- 29328999 TI - Discovery of novel piperonyl derivatives as diapophytoene desaturase inhibitors for the treatment of methicillin-, vancomycin- and linezolid-resistant Staphylococcus aureus infections. AB - Inhibition of S. aureus diapophytoene desaturase (CrtN) could serve as an alternative approach for addressing the tricky antibiotic resistance by blocking the biosynthesis of carotenoid pigment which shields the bacterium from host oxidant killing. In this study, we designed and synthesized 44 derivatives with piperonyl scaffold targeting CrtN and the structure-activity relationships (SARs) were examined extensively to bring out the discovery of 21b with potent efficacy and better hERG safety profile compared to the first class CrtN inhibitor benzocycloalkane derivative 2. Except the excellent pigment inhibitory activity against wild-type S. aureus, 21b also showed excellent pigment inhibition against four pigmented MRSA strains. In addition, H2O2 killing and human whole blood killing assays proved 21b could sensitize S. aureus to be killed under oxidative stress conditions. Notably, the murine study in vivo validated the efficacy of 21b against pigmented S. aureus Newman, vancomycin-intermediate S. aureus Mu50 and linezolid-resistant S. aureus NRS271. PMID- 29329000 TI - Synthesis of C3-Neoglycosides of digoxigenin and their anticancer activities. AB - Cardiac glycosides exhibit significant anticancer effects and the glycosyl substitution at C3 position of digoxigenin is pivotal for their biological activity. In order to study the structure-activity relationship (SAR) of cardiac glycosides toward cancers and explore more potent anticancer agents, a series of C3-O-neoglycosides and C3-MeON-neoglycosides of digoxigenin were synthesized by the Koenigs-Knorr and neoglycosylation method, respectively. In addition, digoxigenin bisdigitoxoside and monodigitoxoside were prepared from digoxin by sodium periodate (NaIO4) oxidation and 6-aminocaproic acid hydrolysis. The SAR analysis revealed that C3-O-neoglycosides of digoxigenin exhibited stronger cytotoxicity and induction of Nur77 expression of tumor cells than C3-MeON neoglycosides. Also, 3beta-O-glycosides exhibited stronger anticancer effects than 3alpha-O-glycosides. Among them, 3beta-O-(beta-l-fucopyranosyl)-digoxigenin (3i) showed the highest activity on induction of Nur77 expression and translocation from the nucleus to cytoplasm, leading to cancer cell apoptosis. PMID- 29329001 TI - Improved antibacterial activity of a marine peptide-N2 against intracellular Salmonella typhimurium by conjugating with cell-penetrating peptides bLFcin6/Tat11. AB - Salmonellae, gram-negative bacteria, are facultative intracellular pathogens that cause a number of diseases in animals and humans. The poor penetration ability of antimicrobial agents limits their use in the treatment of intracellular bacterial infections. In this study, the cell-penetrating peptides (CPPs) bLFcin6 and Tat11 were separately conjugated to the antimicrobial peptide N2, and the antibacterial activity and pharmacodynamics of the CPPs-N2 conjugates were first evaluated against Salmonellae typhimurium in vitro and in macrophage cells. The cytotoxicity, cellular uptake and mechanism of cellular internalization of the CPPs-N2 conjugates were also examined in RAW264.7 cells. Similar to N2, CPPs-N2 have two reverse beta-sheets and three loops. The minimal inhibitory concentration (MIC) of CPPs-N2 was approximately 2 MUM, which was higher than that of N2 (0.8 MUM). The dose-time curves and cytotoxicity assay showed that both peptide conjugates were more effective than N2 alone at concentrations ranging from 0.25 to 1 * MIC, and they exhibited low cytotoxicity (9.78%-13.54%) at 100 MUM. After 0.5 h incubation, the cell internalization ratio of B6N2 and T11N2 exceeded 28.3% and 93.5%, respectively, which was higher than that of N2. The uptake of B6N2 and T11N2 was reduced by low temperature (82.1%-91.7%), chlorpromazine (35.7%-75.1%), and amiloride (26.0%-52.1%), indicating that macropinocytosis and clathrin-mediated endocytosis may be involved. Approximately 98.85% and 91.35% of bacteria were killed within 3 h by T11N2 and B6N2, respectively, which was higher than the percentage killed by N2 (69.74%). Compared with the bactericidal activity of N2 alone, the bactericidal activity of T11N2 and B6N2 was increased by 53.7%-99.6% and 85.3-85.8%, respectively. Both CPPs-N2 conjugates may be excellent candidates for novel antimicrobial agents to treat infectious diseases caused by intracellular pathogens. PMID- 29329002 TI - Integration of multi-scale molecular modeling approaches with experiments for the in silico guided design and discovery of novel hERG-Neutral antihypertensive oxazalone and imidazolone derivatives and analysis of their potential restrictive effects on cell proliferation. AB - AT1 antagonists is the most recent drug class of molecules against hypertension and they mediate their actions through blocking detrimental effects of angiotensin II (A-II) when acts on type I (AT1) A-II receptor. The effects of AT1 antagonists are not limited to cardiovascular diseases. AT1 receptor blockers may be used as potential anti-cancer agents - due to the inhibition of cell proliferation stimulated by A-II. Therefore, AT1 receptors and the A-II biosynthesis mechanisms are targets for the development of new synthetic drugs and therapeutic treatment of various cardiovascular and other diseases. In this work, multi-scale molecular modeling approaches were performed and it is found that oxazolone and imidazolone derivatives reveal similar/better interaction energy profiles compared to the FDA approved sartan molecules at the binding site of the AT1 receptor. In silico-guided designed hit molecules were then synthesized and tested for their binding affinities to human AT1 receptor in radioligand binding studies, using [125I-Sar1-Ile8] AngII. Among the compounds tested, 19d and 9j molecules bound to receptor in a dose response manner and with relatively high affinities. Next, cytotoxicity and wound healing assays were performed for these hit molecules. Since hit molecule 19d led to deceleration of cell motility in all three cell lines (NIH3T3, A549, and H358) tested in this study, this molecule is investigated in further tests. In two cell lines (HUVEC and MCF-7) tested, 19d induced G2/M cell cycle arrest in a concentration dependent manner. Adherent cells detached from the plates and underwent cell death possibly due to apoptosis at 19d concentrations that induced cell cycle arrest. PMID- 29329003 TI - Modified forest rotation lengths: Long-term effects on landscape-scale habitat availability for specialized species. AB - We evaluated the long-term implications from modifying rotation lengths in production forests for four forest-reliant species with different habitat requirements. By combining simulations of forest development with habitat models, and accounting both for stand and landscape scale influences, we projected habitat availability over 150 years in a large Swedish landscape, using rotation lengths which are longer (+22% and +50%) and shorter (-22%) compared to current practices. In terms of mean habitat availability through time, species requiring older forest were affected positively by extended rotations, and negatively by shortened rotations. For example, the mean habitat area for the treecreeper Certhia familiaris (a bird preferring forest with larger trees) increased by 31% when rotations were increased by 22%, at a 5% cost to net present value (NPV) and a 7% decrease in harvested volume. Extending rotation lengths by 50% provided more habitat for this species compared to a 22% extension, but at a much higher marginal cost. In contrast, the beetle Hadreule elongatula, which is dependent on sun-exposed dead wood, benefited from shortened rather than prolonged rotations. Due to an uneven distribution of stand-ages within the landscape, the relative amounts of habitat provided by different rotation length scenarios for a given species were not always consistent through time during the simulation period. If implemented as a conservation measure, prolonging rotations will require long term strategic planning to avoid future bottlenecks in habitat availability, and will need to be accompanied by complementary measures accounting for the diversity of habitats necessary for the conservation of forest biodiversity. PMID- 29329004 TI - Contemporary enzyme based technologies for bioremediation: A review. AB - The persistent disposal of xenobiotic compounds like insecticides, pesticides, fertilizers, plastics and other hydrocarbon containing substances is the major source of environmental pollution which needs to be eliminated. Many contemporary remediation methods such as physical, chemical and biological are currently being used, but they are not sufficient to clean the environment. The enzyme based bioremediation is an easy, quick, eco-friendly and socially acceptable approach used for the bioremediation of these recalcitrant xenobiotic compounds from the natural environment. Several microbial enzymes with bioremediation capability have been isolated and characterized from different natural sources, but less production of such enzymes is a limiting their further exploitation. The genetic engineering approach has the potential to get large amount of recombinant enzymes. Along with this, enzyme immobilization techniques can boost the half life, stability and activity of enzymes at a significant level. Recently, nanozymes may offer the potential bioremediation ability towards a broad range of pollutants. In the present review, we have described a brief overview of the microbial enzymes, different enzymes techniques (genetic engineering and immobilization of enzymes) and nanozymes involved in bioremediation of toxic, carcinogenic and hazardous environmental pollutants. PMID- 29329005 TI - Costs and benefits of biogas recovery from communal anaerobic digesters treating domestic wastewater: Evidence from peri-urban Zambia. AB - Communal anaerobic digesters (ADs) have been promoted as a waste-to-energy strategy that can provide sanitation and clean energy co-benefits. However, little empirical evidence is available regarding the performance of such systems in field conditions. This study assesses the wastewater treatment efficiency, energy production, greenhouse gas (GHG) emissions, and financial costs and benefits of communal ADs used for domestic wastewater treatment in Zambia. Primary data on the technical performance of 15 ADs were collected over a 6-month period and in-person interviews were conducted with heads of 120 households. Findings from this study suggest that ADs offer comparable wastewater treatment efficiencies and greater GHG emission reduction benefits relative to conventional septic tanks (STs), with the greatest benefits in settings with reliable access to water, use of low efficiency solid fuels and with sufficient demand for biogas in proximity to supply. However, absent a mechanism to monetize additional benefits from biogas recovery, ADs in this context will not be a financially attractive investment relative to STs. Our financial analysis suggests that, under the conditions in this study, a carbon price of US$9 to $28 per tCO2e is necessary for positive investment in ADs relative to STs. Findings from this study contribute empirical evidence on ADs as a sanitation and clean energy strategy, identify conditions under which the greatest benefits are likely to accrue and inform international climate efforts on the carbon price required to attract investment in emissions reduction projects such as ADs. PMID- 29329006 TI - Ongoing unmet needs in treating estrogen receptor-positive/HER2-negative metastatic breast cancer. AB - Estrogen receptor-positive (ER+)/human epidermal growth factor receptor 2 negative (HER2-) advanced or metastatic breast cancer (MBC) is the most common MBC subtype and currently remains incurable, with a median overall survival of 24.8 months (95% confidence interval, 21.3-30.3). Common sites of metastases are bone, viscera, and brain, causing significant symptoms that negatively affect patient functioning, quality of life (QoL), and work productivity. Guidelines state that endocrine therapy (ET) is preferable to chemotherapy as first-line treatment for patients with ER+ MBC, regardless of limited visceral metastases, unless rapid tumor response is required or ET resistance is suspected. Although response rates up to 40% have been reported for first-line MBC treatment, the majority of initial responders eventually develop ET resistance. Notwithstanding the steep decline in efficacy between first and later lines of ET, some patients may receive chemotherapy earlier than necessary. Although new treatments have been approved for patients with ER+/HER2- advanced or MBC in the past decade, neither survival nor QoL appear to have improved significantly. Thus, there remain significant unmet needs for this patient population, including improved survival, maintaining or improving patient QoL, and emphasizing the importance of treatment selection to assist healthcare practitioners managing patient care. In this review, we identify current challenges and unmet needs in this patient population, review cutting-edge treatments, and provide clinically relevant suggestions for treatment selection that can optimize outcomes and patients' health-related QoL. PMID- 29329008 TI - Selective formation of copper nanoparticles from acid mine drainage using nanoscale zerovalent iron particles. AB - Nanoscale zerovalent iron (nZVI) has been investigated for the selective formation of Cu nanoparticles from acid mine drainage (AMD) taken from a legacy mine site in the UK. Batch experiments were conducted containing unbuffered (pH 2.67 at t = 0) and pH buffered (pH < 3.1) AMD which were exposed to nZVI at 0.1 2.0 g/L. Results demonstrate that nZVI is selective for Cu, Cd and Al removal (>99.9% removal of all metals within 1 h when nZVI >= 1.0 g/L) from unbuffered AMD despite the coexistent of numerous other metals in the AMD, namely: Na, Ca, Mg, K, Mn and Zn. An acidic pH buffer enabled similarly high Cu removal but maximum removal of only <1.5% and <0.5% Cd and Al respectively. HRTEM-EDS confirmed the formation of discrete spherical nanoparticles comprised of up to 68% wt. Cu, with a relatively narrow size distribution (typically 20-100 nm diameter). XPS confirmed such nanoparticles as containing Cu degrees , with the Cu removal mechanism therefore likely via cementation with Fe degrees . Overall the results demonstrate nZVI as effective for the one-pot and selective formation of Cu degrees -bearing nanoparticles from acidic wastewater, with the technique therefore potentially highly useful for the selective upcycling of dissolved Cu in wastewater into high value nanomaterials. PMID- 29329007 TI - The relative strength of attitudes versus perceived drinking norms as predictors of alcohol use. AB - Social cognitive factors such as perceived norms and personal attitudes toward alcohol consumption are reliable predictors of alcohol use and related problems. The current study aimed to evaluate the relative importance of one's attitude toward alcohol use as a unique and important predictor of drinking related outcomes when directly compared to perceived descriptive and injunctive norms. Participants were mandated students (n=568; 28% female) who violated a campus alcohol policy and received a Brief Motivational Intervention. Analyses included the use of linear regression for prospective predictions to evaluate the relative importance of predictors which included perceived descriptive norms and injunctive norms, and attitudes toward moderate and heavy alcohol use. Overall, the results indicate that one's attitude toward heavy alcohol use is a stronger predictor of drinks per week, binge frequency, as well as alcohol related problems when directly compared to norms. Thus, the findings of the current study provide a compelling rationale for incorporating attitudes in the development and refinement of intervention strategies. PMID- 29329009 TI - Well-controlled in-situ growth of 2D WO3 rectangular sheets on reduced graphene oxide with strong photocatalytic and antibacterial properties. AB - Finding the materials, which help to control the water pollution caused by organic and bacterial pollutants is one of the challenging tasks for the scientific community. 2D sheets of WO3 and composite of WO3 and reduced graphene oxide (rGO) have been synthesized in a well-controlled way using a hydrothermal method. The as synthesized 2D sheet of WO3 and rGO-WO3 composite were characterized by various techniques. The 2D sheets of WO3 and rGO-WO3 composite are efficiently utilized for the photocatalytic degradation of methylene blue (MB) and Rhodamine B (RhB) dyes under sunlight. The rGO-WO3 composite reveals excellent photocatalytic degradation of RhB dye by degrading it upto 85% under sunlight. However, the MB dye was degraded by 32%. The greater degradation of RhB dye was explained in terms of the molecular electrostatic potential. We found that RhB has a more positive potential compared to MB dye where O2- and OH radicals interact more strongly, resulting in a greater degradation of the RhB dye. The antibacterial activity of the 2D sheets of WO3 and rGO-WO3composite was also investigated on gram positive (B. subtilis) and gram negative (P. aeroginosa) microbes for the first time. PMID- 29329010 TI - UVA-UVB activation of hydrogen peroxide and persulfate for advanced oxidation processes: Efficiency, mechanism and effect of various water constituents. AB - In the present work we investigate the activation efficiency of H2O2 and S2O82- using UVA and UVB radiation. Bisphenol-A (BPA) is used as model pollutants to estimate the oxidative process efficiency in simulated and real sewage treatment plant waters. Particular attention is paid to the BPA removal efficiency and to the radical mechanism involvement considering the effect of typical inorganic water constituents (carbonates and chloride ions) and organic matter. Despite a detrimental effect observed when carbonate ions are in solution using both hydrogen peroxide and persulafate, the presence of high chloride ions concentration was found to improve BPA removal using S2O82- as radical precursor. This enhancement, investigated combining chemical kinetic model approach and laser flash photolysis experiments, is attributed to the formation of hydroxyl radical and chlorine radical species from sulfate radical. Different transformation products are identified by means of GC-MS and HPLC-MS analyses. Moreover, experiments using sewage treatment plant water (STPW) spiked with BPA are performed in order to assess the efficiency of oxidative processes in a simulated treatment systems activated using UVA + UVB radiations. PMID- 29329011 TI - Removal of ozonation products of pharmaceuticals in laboratory Moving Bed Biofilm Reactors (MBBRs). AB - The major pathway of pharmaceuticals from urban applications to urban surface waters is via wastewater treatment plants. Ozonation is able to remove pharmaceuticals from wastewater effluents. However, during that reaction, ozonation products are formed. Some ozonation products were found to be persistent and have adverse effect on the environment. Moving bed bio reactors (MBBRs) were tested for the removal of the ozonation products of macrolide antibiotics and diclofenac at two different concentration levels 1 MUg/L and 10 MUg/L in laboratory reactors. It was found that the MBBRs are capable of degrading these compounds without back-transformation into the parent compounds. However, reaction rate constants and the degradation kinetics varied for different compounds and different concentrations. Depending on compound and conditions, the degradation reaction kinetics was found to follow either i) zero order ii) first order or iii) lag phase succeeded by first order. The study has proven that MBBRs have the potential to be efficient in polishing post ozonation treatment. PMID- 29329012 TI - Oxidative transformation kinetics and pathways of albendazole from reactions with manganese dioxide. AB - Albendazole (ABZ) is a benzimidazole-based veterinary anthelmintic used extensively in the treatment of intestinal parasites. Due to its high hydrophobicity, ABZ tends to accumulate in soils and sediments in the environment. This study aims to investigate ABZ's possible degradation by manganese oxides. Minor effects from ionic strength and metal cations on ABZ degradation were observed. By contrast, decrease of pH greatly enhanced the reaction rate. Surface complexation between ABZ and MnO2 was indicated to be the dominant control in the reaction kinetics. Suppression by the presence of co solvents was negatively proportional to the solvent polarities (suppression from high to low: diethyl ether ~ n-butanol > ethanol > methanol > acetonitrile). Humic acid was found to cause significant inhibition due to the reductive dissolution of MnO2. Four hydrolysis and six oxidative products were identified. ABZ and its hydrolysis products containing the propylthio side chain underwent the same oxidative transformation to form their corresponding sulfoxide compounds. Dehydrogenative coupling reaction between sulfoxide products and hydrolysis products could occur to generate dimers. All hydrolysis and oxidative products were eluted faster than ABZ in liquid chromatogram, suggesting that the spreading out of ABZ will be significantly enhanced if reacting with MnO2. PMID- 29329013 TI - Antiobesity effect of Lactobacillus reuteri 263 associated with energy metabolism remodeling of white adipose tissue in high-energy-diet-fed rats. AB - Obesity is a serious and costly issue to the medical welfare worldwide. Probiotics have been suggested as one of the candidates to resolve the obesity associated problems, but how they combat obesity is not fully understood. Herein, we investigated the effects of Lactobacillus reuteri 263 (L. reuteri 263) on antiobesity using four groups of Sprague-Dawley rats (n=10/group), namely, C (normal diet with vehicle treatment), HE [high-energy diet (HED) with vehicle treatment], 1X (HED with 2.1*109 CFU/kg/day of L. reuteri 263) and 5X (HED with 1.05*1010 CFU/kg/day of L. reuteri 263), for 8 weeks. L. reuteri 263 improved the phenomenon of obesity, serum levels of proinflammatory factors and antioxidant enzymes. More importantly, L. reuteri 263 increased oxygen consumption in white adipose tissue (WAT). The mRNA expressions of thermogenesis genes uncoupling protein-1, uncoupling protein-3, carnitine palmitoyltransferase-1 and cell death inducing DFFA-like effector-a were up-regulated in WAT of the 5X group. Moreover, L. reuteri 263 might induce browning of WAT due to the higher mRNA levels of browning-related genes peroxisome proliferator-activated receptor-gamma, PR domain containing-16, Ppargamma coactivator-1alpha, bone morphogenetic protein-7 and fibroblast growth factor-21 in the 1X and 5X groups compared to the HE group. Finally, L. reuteri 263 altered the expressions of genes involved in glucose and lipid metabolisms in WAT, including increasing the levels of glucose transporter type 4 and carbohydrate-responsive element-binding protein and decreasing the expression of Acetyl-CoA carboxylase-1. The results suggest that L. reuteri 263 may treat obesity through energy metabolism remodeling of WAT in the high-energy diet-induced obese rats. PMID- 29329014 TI - Nanoadsorbents based on conducting polymer nanocomposites with main focus on polyaniline and its derivatives for removal of heavy metal ions/dyes: A review. AB - Water contamination by toxic heavy metal ions and dyes remains a serious public health problem for humans, so attention on specific methods and technologies to remove heavy metal ions and dyes from wastewaters/aqueous solutions are desired. Numerous adsorbents have been reported for the removal of heavy metal ions/dyes from wastewaters/aqueous solutions. Polyaniline (PANI) and its derivatives, as conducting polymers, are good adsorbents to remove various kinds of heavy metal ions and dyes from wastewaters/aqueous solutions. The nanoadsorbents based on PANI and its derivatives have received much consideration, and are extensively reported in literature. This review focuses on the PANI and its derivatives based on nanoadsorbents for water purification. Various types of these nanoadsorbents used for the removal of heavy metal ions/dyes from wastewaters/aqueous solutions are also briefly compared in this review. PMID- 29329015 TI - Modelling of road traffic fatalities in India. AB - Passenger modes in India include walking, cycling, buses, trains, intermediate public transport modes (IPT) such as three-wheeled auto rickshaws or tuk-tuks, motorised two-wheelers (2W) as well as cars. However, epidemiological studies of traffic crashes in India have been limited in their approach to account for the exposure of these road users. In 2011, for the first time, census in India reported travel distance and mode of travel for workers. A Poisson-lognormal mixture regression model is developed at the state level to explore the relationship of road deaths of all the road users with commute travel distance by different on-road modes. The model controlled for diesel consumption (proxy for freight traffic), length of national highways, proportion of population in urban areas, and built-up population density. The results show that walking, cycling and, interestingly, IPT are associated with lower risk of road deaths, while 2W, car and bus are associated with higher risk. Promotion of IPT has twofold benefits of increasing safety as well as providing a sustainable mode of transport. The mode shift scenarios show that, for similar mode shift across the states, the resulting trends in road deaths are highly dependent on the baseline mode shares. The most worrying trend is the steep growth of death burden resulting from mode shift of walking and cycling to 2W. While the paper illustrates a limited set of mode shift scenarios involving two modes at a time, the model can be applied to assess safety impacts resulting from a more complex set of scenarios. PMID- 29329016 TI - Non-linear effects of the built environment on automobile-involved pedestrian crash frequency: A machine learning approach. AB - Although a growing body of literature focuses on the relationship between the built environment and pedestrian crashes, limited evidence is provided about the relative importance of many built environment attributes by accounting for their mutual interaction effects and their non-linear effects on automobile-involved pedestrian crashes. This study adopts the approach of Multiple Additive Poisson Regression Trees (MAPRT) to fill such gaps using pedestrian collision data collected from Seattle, Washington. Traffic analysis zones are chosen as the analytical unit. The effects of various factors on pedestrian crash frequency investigated include characteristics the of road network, street elements, land use patterns, and traffic demand. Density and the degree of mixed land use have major effects on pedestrian crash frequency, accounting for approximately 66% of the effects in total. More importantly, some factors show clear non-linear relationships with pedestrian crash frequency, challenging the linearity assumption commonly used in existing studies which employ statistical models. With various accurately identified non-linear relationships between the built environment and pedestrian crashes, this study suggests local agencies to adopt geo-spatial differentiated policies to establish a safe walking environment. These findings, especially the effective ranges of the built environment, provide evidence to support for transport and land use planning, policy recommendations, and road safety programs. PMID- 29329017 TI - Amiodarone, a multi-channel blocker, enhances anticonvulsive effect of carbamazepine in the mouse maximal electroshock model. AB - Cardiac arrhythmia may occur in the course of epilepsy. Simultaneous therapy of the two diseases might be complicated by drug interactions since antiarrhythmic and antiepileptic agents share some molecular targets. The aim of this study was to evaluate the influence of amiodarone, an antiarrhythmic drug working as a multi-channel blocker, on the protective activity of four classical antiepileptic drugs in the maximal electroshock test in mice. Amiodarone at doses up to 75 mg/kg did not affect the electroconvulsive threshold in mice. Acute amiodarone at the dose of 75 mg/kg significantly potentiated the anticonvulsive effect of carbamazepine, but not that of valproate, phenytoin or phenobarbital in the maximal electroshock-induced seizures in mice. The antiarrhythmic agent and its combinations with antiepileptic drugs did not impair motor performance or long term memory in mice, except for the combination of amiodarone and phenobarbital. Brain concentrations of antiepileptic drugs were not changed. Despite favourable impact of amiodarone on the anticonvulsive action of carbamazepine in the maximal electroshock, co-administration of the two drugs should be carefully monitored in clinical conditions. Further studies are necessary to evaluate effects of chronic treatment with amiodarone on seizure activity and the action of antiepileptic drugs. PMID- 29329019 TI - Salidroside influences the cellular cross-talk of human fetal lung diploid fibroblasts: A proteomic approach. AB - Senescence is a complex multiple factor proces, which is still poorly understood. The purpose of this study was to find the proteome of cultured human fetal lung diploid fibroblasts (2BS) of different population doubling (PD), as well as the altered proteome induced by salidroside (SAL) in 2BS cells. Proteins were identified by two-dimensional electrophoresis (2-DE) combining matrix-assisted laser desorption/ionization-time and flight mass spectrometry (MAL DI-TOF/MS). As a result, we found 16 proteins with two-fold variations in senescent cells or after SAL treatment, some being reduced such as reticulocalbin-1, heat shock protein beta-6, elongation factor 1-delta, F-actin-capping protein subunit alpha 1, and chloride intracellular channel 1. In contrast, 40S ribosomal protein SA, proteasome subunit alpha type-5, and zinc finger BED domain-containing protein 5 increased with cell age. Furthermore, heat shock protein beta-6, Zinc finger BED domain-containing protein 5 was increased in PD30 cells after 10 MUM SAL treatment, whereas, elongation factor 1-delta, 6-phosphogluconolactonase, Nucleoside diphosphate kinase A, F-actin-capping protein subunit alpha-1, Probable ATP-dependent RNA helicase DDX41, Chloride intracellular channel 1, and Peroxiredoxin-6 were increased in PD50 cells after 10 MUM SAL treatment. Some of these proteins were involved in the protein synthetic and degradative pathways, which emphasizes the metabolic disorder or functional impairment of cell senescence. Moreover, these proteins could be candidate biomarkers for evaluating the SAL anti-senescence effect. PMID- 29329018 TI - Corrosion effect of Bacillus cereus on X80 pipeline steel in a Beijing soil environment. AB - The corrosion of X80 pipeline steel in the presence of Bacillus cereus (B. cereus) was studied through electrochemical and surface analyses and live/dead staining. Scanning electron microscopy and live/dead straining results showed that a number of B. cereus adhered to the X80 steel. Electrochemical impedance spectroscopy showed that B. cereus could accelerate the corrosion of X80 steel. In addition, surface morphology observations indicated that B. cereus could accelerate pitting corrosion in X80 steel. The depth of the largest pits due to B. cereus was approximately 11.23MUm. Many pits were found on the U-shaped bents and cracks formed under stress after 60days of immersion in the presence of B. cereus. These indicate that pitting corrosion can be accelerated by B. cereus. X ray photoelectron spectroscopy results revealed that NH4+ existed on the surface of X80 steel. B. cereus is a type of nitrate-reducing bacteria and hence the corrosion mechanism of B. cereus may involve nitrate reduction on the X80 steel. PMID- 29329020 TI - A novel mouse model of atopic dermatitis that is T helper 2 (Th2)-polarized by an epicutaneous allergen. AB - The pathogenesis of atopic dermatitis (AD) involves T helper 2 (Th2) cells, and effective therapies remain elusive due to the paucity of animal models. We aimed to develop a mouse model of an immune system aberration caused by allergen. Experiments were conducted in two phases. In experiment 1, BALB/c mice were sensitized with one of four chemical allergens - toluene diisocyanate (TDI), hexamethylene diisocyanate (HDI), trimellitic anhydride (TMA), or 2,4 dinitrochlorobenzene (DNCB) - for 3 weeks. Based on results of experiment 1, immunological features were compared between TMA-sensitized BALB/c mice and NC/Nga mice, after exposure to mite extracts, harmful chemicals and detergents in experiment 2. Sensitization by allergen caused a large number of pathological changes in the skin, and an increase in mast cell number. TMA-sensitized BALB/c mice models showed higher sensitivity to an environmental allergen than NC/Nga mice did. Overall, the initial sensitization with TMA leads to disturbances in Th2-mediated immunity. PMID- 29329021 TI - Genotoxicity analysis of five particle matter toxicants from cigarette smoke based on gammaH2AX assay combined with Hill/Two-component model. AB - To investigate the genotoxic characteristics of typical toxicants in particle phase of cigarette smoke, including B[a]P, nicotine, tar, NNN and NNK. The in vitro gammaH2AX assay was used to detect the DNA double-strand breaks (DSBs) in A549 cells using high content screening (HCS). The results showed all toxicants had a dose/time-dependent effects on induction of gammaH2AX except for NNN and NNK. Based on dose-response of gammaH2AX and Hill model, the ability to induce DSBs was evaluated: NNN-acetate > B[a]P > NNK-acetate > tar > nicotine. Based on time-course of gammaH2AX and two-component model, the complex DNA damage was the main subtypes of DNA damage induced by these toxicants. Overall, all toxicants were genotoxic in A549 cells in a dose- or time- dependent manner except for NNN and NNK based on the gammaH2AX HCS assay. NNN-acetate had more potential to induce DSBs, which was followed by B[a]P, NNK-acetate, tar and nicotine. PMID- 29329022 TI - Impact of non-anticoagulant therapy on patients with sepsis-induced disseminated intravascular coagulation: A multicenter, case-control study. AB - INTRODUCTION: Anticoagulant therapy for patients with sepsis is not recommended in the latest Surviving Sepsis Campaign guidelines, and non-anticoagulant therapy is the global standard treatment approach at present. We aimed at elucidating the effect of non-anticoagulant therapy on patients with sepsis-induced disseminated intravascular coagulation (DIC), as evidence on this topic has remained inconclusive. MATERIALS AND METHODS: Data from 3195 consecutive adult patients admitted to 42 intensive care units for the treatment of severe sepsis were retrospectively analyzed via propensity score analyses with and without multiple imputation. The primary outcome was in-hospital all-cause mortality. RESULTS: Among 1784 patients with sepsis-induced DIC, 745 (41.8%) were not treated with anticoagulants. The inverse probability of treatment-weighted (with and without multiple imputation) and quintile-stratified propensity score analyses (without multiple imputation) indicated a significant association between non anticoagulant therapy and higher in-hospital all-cause mortality (odds ratio [95% confidence interval]: 1.59 [1.19-2.12], 1.32 [1.02-1.81], and 1.32 [1.03-1.69], respectively). However, quintile-stratified propensity score analyses with multiple imputation and propensity score matching analysis with and without multiple imputation did not show this association. Survival duration was not significantly different between patients in the propensity score-matched non anticoagulant therapy group and those in the anticoagulant therapy group (Cox regression analysis with and without multiple imputation: hazard ratio [95% confidence interval]: 1.26 [1.00-1.60] and 1.22 [0.93-1.59], respectively). CONCLUSIONS: It remains controversial if non-anticoagulant therapy is harmful, equivalent, or beneficial compared with anticoagulant therapy in the treatment of patients with sepsis-induced DIC. PMID- 29329023 TI - Women's experiences with using a smartphone app (the Pregnant+ app) to manage gestational diabetes mellitus in a randomised controlled trial. AB - OBJECTIVE: The purpose of this study was to explore the experiences of women with gestational diabetes mellitus (GDM) with controlling their blood glucose values and receiving health and nutrition information using a smartphone app (the Pregnant+ app). DESIGN AND PARTICIPANTS: The study utilised the interpretative phenomenological analysis method. Semi-structured interviews were conducted with 17 participants among those participating to the randomised controlled trial. RESULTS: The women experienced sorrow and disappointment when they were diagnosed with GDM, but they all went through a process of learning to self-manage their condition that was strongly motivated by theirdesire to care for their unborn babies. The women found that the app increased their confidence in their self management of GDM and their motivation for behavioural change. For some women, the app contributed to feelings offrustration or obsession. In addition, some technological problems and a lack of support from health-care professionals limited several women from using the app. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTISE: The findings suggest that asmartphone app may have potential for supporting women with GDM, particularly in their blood glucose management. However, it also highlights some of the potential challenges of using mHealth technologies. The findings indicate that a closer collaboration between health care professionals and patients is of great importance in the implementation of apps for women with GDM. PMID- 29329024 TI - 'TeamUP': An approach to developing teamwork skills in undergraduate midwifery students. AB - OBJECTIVE: to develop an effective model to enable educators to teach, develop and assess the development of midwifery students' teamwork skills DESIGN: an action research project involving participant interviews and academic feedback. SETTING: a regional university PARTICIPANTS: midwifery students (n = 21) and new graduate midwives (n = 20) INTERVENTIONS: a whole of course program using a rubric, with five teamwork domains and behavioural descriptors, to provide a framework for teaching and assessment. Students self and peer assess. Lectures, tutorials and eight different groupwork assignments of increasing difficulty, spread over the three years of the undergraduate degree are incorporated into the TeamUP model. FINDINGS: the assignments provide students with the opportunity to practice and develop their teamwork skills in a safe, supported environment. KEY CONCLUSIONS: the social, emotional and practical behaviours required for effective teamwork can be taught and developed in undergraduate health students. IMPLICATIONS FOR PRACTICE: students require a clear overview of the TeamUP model at the beginning of the degree. They need to be informed of the skills and behaviours that the TeamUP model is designed to help develop and why they are important. The success of the model depends upon the educator's commitment to supporting students to learn teamwork skills. PMID- 29329025 TI - The Midwifery Services Framework: The process of implementation. AB - In 2015, the International Confederation of Midwives launched the Midwifery Services Framework: a new evidence-based tool to guide countries through the process of improving their sexual, reproductive, maternal and newborn health services through strengthening and developing the midwifery workforce. The Midwifery Services Framework is aligned with key global architecture for sexual, reproductive, maternal and newborn health and human resources for health, and with the recommendations of the 2014 Lancet Series on Midwifery. This second in a series of three papers describes the process of implementing the Midwifery Services Framework: the preparatory work, what happens at each stage of implementation and who should be involved at each stage. It gives an idea of the scale of the task, and the resources that will be required to implement the Midwifery Services Framework in a given country context. The paper will be of interest to health policy-makers, development partners and professional associations in countries considering different approaches to strengthening their sexual, reproductive, maternal and newborn health services, and it will help them to decide whether and when either full or partial/staged implementation of the Midwifery Services Framework will be an appropriate initiative to address identified deficits in their specific context, given the current and projected availability of resources. PMID- 29329026 TI - The interaction of pyridoxal isonicotinoyl hydrazone (PIH) and salicylaldehyde isonicotinoyl hydrazone (SIH) with iron. AB - The interaction of pyridoxal isonicotinoyl hydrazone (PIH) and salicylaldehyde isonicotinoyl hydrazone (SIH), two important biologically active chelators, with iron has been investigated by spectrophotometric methods. High iron(III) affinity constants were determined for PIH, logbeta2=37.0 and SIH, logbeta2=37.6. The associated redox potentials of the iron complexes were determined using cyclic voltammetry at pH7.4 as +130mV (vs normal hydrogen electrode, NHE) for PIH and +136mV(vs NHE) for SIH. These redox potentials are much higher than those corresponding to iron chelators in clinical use, namely deferiprone, -620mV; desferasirox, -600mV and desferrioxamine, -468mV. Although the positive redox potentials of SIH and PIH are similar to that of EDTA, namely +120mV, the iron complexes of these two hydrazone chelators, unlike the iron complex of EDTA, do not redox cycle in the presence of vitamin C. These properties render PIH and SIH as excellent scavengers of iron, under biological conditions. Both SIH and PIH scavenge mononuclear iron(II) and iron(III) rapidly. These fast kinetic properties of the hydrazone-based chelators provide a ready explanation for the adoption of SIH in fluorescence-based methods for the quantification of cytosolic iron(II). PMID- 29329027 TI - Cytotoxic and anticancer properties of new ruthenium polypyridyl complexes with different lipophilicities. AB - Three ruthenium complexes containing a bidentate piq ligand, [(piq)Ru(bpy)2]2+ (1), [(piq)Ru(phen)2]2+ (2), and [(piq)Ru(DIP)2]2+ (3) (piq = phenylisoquinolinate, bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, DIP = 4,7-diphenyl-1,10-phenanthroline), were prepared. The DNA binding properties of complexes 1-3 to double-stranded DNA were studied. The binding of 1-3 to calf thymus DNA (ct-DNA) yielded lower emission intensities than those observed with the corresponding Ru complexes alone. To explore potential interactions of complexes 1-3 with lipid-rich organs in live cells, the emission properties of the Ru probes were studied with liposomes. The emission intensities of complexes 1-3 were enhanced to similar extents upon interaction with liposomes. The cytotoxic activities of the complexes against MDA-MB-231 and HUVECs were evaluated in vitro. The effects of complexes 1-3 on the survival of MDA-MB-231 cells were examined and compared with that of cis-platin. Complexes 2 and 3 were more cytotoxic to cancer cells than cis-platin. Complexes 1-3 showed cellular uptakes of 1.1, 10.6, and 76.6%, respectively, indicating that the greatest amount of complex 3 entered the cancer cells. Inhibition of cell migration by complexes 1-3 was also evaluated by the wound healing assay. PMID- 29329028 TI - Equine allogeneic chondrogenic induced mesenchymal stem cells: A GCP target animal safety and biodistribution study. AB - The safety of the intra-articular use of mesenchymal stem cells (MSCs) is scarcely reported. Therefore, the goal of this study was to investigate the safety of a single intra-articular injection with allogeneic chondrogenic induced MSCs combined with equine plasma (=the investigational product: IVP) compared to a saline (0.9% NaCl) placebo control (=control product: CP). Sixteen healthy experimental horses were randomly assigned to receive a single intra-articular injection with either the IVP (n=8) or the CP (n=8) in the left metacarpophalangeal joint. All horses underwent a daily clinical assessment throughout the entire study period of 42days to assess adverse events. Additionally, a local joint assessment and a lameness examination were performed daily during the first two weeks, and weekly the following 4weeks. Blood samples were taken weekly for hematological and biochemical analysis. At the end of the study period, horses of the IVP group were euthanized for a thorough necropsy and to check for biodistribution. Tissue samples of the injected joint were collected for histological examination. In both CP and IVP treated horses a mild transient subjective increase in periarticular temperature and lameness was noted after the intra-articular injection with no significant differences between the treatment groups. No distribution of the cells was found using immunohistochemistry and no ectopic tissue formation or signs of inflammation were found on histology. A single intra-articular injection of allogeneic chondrogenic induced MSCs combined with allogeneic plasma in horses had the same clinical side effects as an intra articular injection with saline solution. PMID- 29329029 TI - Corrigendum to "Pharmacological profile of dexketoprofen in orofacial pain" [Pharmacol. Rep. 68 (6) (2016) 1111-1114]. PMID- 29329030 TI - pDok2, caspase 3 dependent glioma cell growth arrest by nitidine chloride. AB - BACKGROUND: Nitidine chloride (NC) is known to exert anticancer and anti metastatic effects on a variety of tumors. Recently, NC has also been shown to inhibit PIK3/AKT/mTOR axis in U87 human glioma cells. METHODS: The study shows NC employing pDok2, caspase 3 dependent cell death in C6 rat glioma and U87 human malignant glioblastoma cells. The effect of NC on glioblastoma cell lines was accessed by MTT, clonogenic and wound healing assays. Cell cycle analysis was performed by FACS. Moreover, the effect of NC on downstream target proteins, such as caspase3, pDok2, PARP, and Gsk3 beta, were measured by western blotting. RESULTS: Overexpressed pDok2 protein has recently been reported as a prognostic marker with poor outcomes for human glioblastoma multiformae. We found that NC inhibits pDok2 in U87 cells in a concentration-dependent way. We further showed that cleaved PARP and cleaved caspase 3 protein expressions were increased in C6 cells treated with NC in a dose-dependent way. NC effectively attenuated C6 cells growth and colony formation at 8MUM (micromoles) concentration. Cell cycle arrest in G2/M phase was further confirmed by flow cytometry. NC also exhibited its inhibitory effect on Gsk3 beta, which has been proven to be altered in glioma biology. CONCLUSIONS: Collectively, we predicted that NC could be employed as a potential anti-glioma mediator that needs attention to explore the mechanisms of its activity. PMID- 29329031 TI - Development of a new ex vivo model for evaluation of endoscopic submucosal injection materials performance. AB - BACKGROUND AND AIMS: Development of high-performance submucosal injection materials (SIMs) contribute to the advancement of endoscopic therapy for early stage gastrointestinal neoplasms. This study aimed to develop a new ex vivo model that mimics the human gastrointestinal tract to evaluate the performance (the height and duration of the submucosal elevation) of various SIMs in detail. METHODS: A new ex vivo model that applies a constant tension to the tested specimen (the porcine gastric specimen) was developed. SIMs were injected into the submucosa at the center or edge of the tested specimen, and submucosal elevation heights (SEHs) were measured over time. RESULTS: The average value and standard deviation of SEH determined using the conventional model (the tested specimen was fixed with pins) were higher than those obtained using the new model, which showed that the new model could precisely measure the SEH of a given SIM. In addition, the performance (SEH) of SIMs decreased with increasing tension applied to the specimen, suggesting that the performance of SIMs deteriorates with the over-expansion of the gastrointestinal tract. The submucosal elevation formed at the specimen edge disappeared faster than that formed at the specimen's center. CONCLUSIONS: The proposed new ex vivo model allows accurate SEH measurement under uniform conditions and detailed comparison of the performances of various types of SIMs and can contribute to the development of high performance materials. PMID- 29329032 TI - Targeting expression of adenosine receptors during hypoxia induced angiogenesis - A study using zebrafish model. AB - Hypoxia is known to be a major player during pathological angiogenesis and adenosine as a negative feedback signaling to maintain oxygen delivery in pathological ischemic condition. We mimicked hypoxic condition and studied angiogenesis by inducing adenosine receptors using forskolin, a plant compound and NECA analogue of adenosine using zebrafish model. Vascular endothelial growth factor (VEGF) is known to play a key role during pathological angiogenesis and regulated by the factors HIF1a under hypoxic condition and recently Notch is proposed to play a negative feedback loop mechanism along with VEGF signaling but the role of adenosine receptor during the process is not known. We evaluated the mRNA expression of adenosine receptors (A1, A2a.1, A2a.2, A2b), HIF1a, VEGF A, VEGF R2, NRP1a, NOTCH 1a and DLL4 and the phenotypic variations of zebrafish embryos when treated with DAPT, gamma-secretase inhibitor of Notch in addition to treating the embryos with SU5416, a VEGF receptor inhibitor. Upregulation of adenosine receptors (A1, A2a.1, A2a.2, A2b), HIF1a, VEGF A, VEGF R2, NRP1a, NOTCH1a and DLL4 was observed embryos were when treated with forskolin and NECA could possibly mimic hypoxic condition. Hatching and heart rate also increased with NECA and forskolin. SU5416 showed decreases in blood vessel formation and decreased adenosine receptors, VEGF, VEGFR2, HIF1a and NRP1a expression and DAPT, exhibited decreases in blood vessels and decreased NRP1a, NOTCH1a, DLL4 expression. These embryos developed with poor vasculature, tail bending, abnormal phenotypes and developmental delay. Forskolin treated with inhibitors showed increased blood vessel formation, normal phenotype, development and adenosine receptors (A1, A2a.1, A2a.2, A2b), HIF1a, VEGF A, VEGF R2, NRP1a, NOTCH 1a and DLL4 gene expression suggesting that adenosine mediated Notch and VEGF could play an important role during development and angiogenesis. Targeting VEGF and Notch signaling with adenosine receptors inhibitors which might have a therapeutic significance during hypoxia and abnormal angiogenesis. PMID- 29329033 TI - Onjisaponin B prevents cognitive impairment in a rat model of D-galactose-induced aging. AB - In this study, we investigated the potential effect of onjisaponin B (OB) on aging rats induced by D-gal (D-galactose). Sub-acute aging model was established in rats by the subcutaneous injection of D-gal (120 mg/kg) for 42 days, accompanied with OB (10, 20 mg/kg, p.o.) or normal saline intervention for 28 days since the 14th day after the beginning of D-gal stimulation. Morris water maze test and step-down passive avoidance test were conducted to evaluate the cognitive function of the rats. The superoxidase dismutase (SOD), malondialdehyde (MDA), glutathione (GSH) and glutathione peroxidase (GSH-px) contents in hippocampus were measured by according kits, respectively. And the hippocampus levels of inflammatory mediators including tumor necrosis factor-alpha (TNF alpha), interleukin-6 (IL-6) and interleukin-1beta (IL-1beta) were assayed by enzyme-linked immunosorbent assay (ELISA). Furthermore, the expressions of SOD1, MDA5, GSH, GSH-px, NF-kB pathway were present by western blot. It revealed that administration of OB was able to significantly attenuate the D-gal-induced changes in the hippocampus, ranging from cognitive capacity, oxidative stress to inflammation response. In a nutshell, our data provided evidence that OB could contribute to the restoration of cognitive ability by improving the antioxidant and anti-inflammatory capacity in D-gal induced aging rats. PMID- 29329034 TI - Long non-coding RNA CCAT2 promotes cholangiocarcinoma cells migration and invasion by induction of epithelial-to-mesenchymal transition. AB - Cholangiocarcinoma (CCA) is one of the most aggressive malignancies in humans. Emerging evidence has indicated that abnormally expressed long non-coding RNAs (lncRNAs) could conduce to tumorigenesis and progression. Specifically, colon cancer-associated transcript 2 (CCAT2) has been reported to be overexpressed in several carcinomas. However, its clinical significance and functional roles in CCA is still unknown. qRT-PCR experiments were conducted to assess the CCAT2 expression in CCA tissue samples and cell lines. In addition, the link between CCAT2 expression and clinicopathological characteristics was analyzed. The potential effects of CCAT2 in CCA cells was evaluated in vitro including cell proliferation, colony-forming ability, apoptosis, migration, invasion and epithelial-to-mesenchymal transition (EMT). As a result, CCAT2 was aberrantly overexpressed in CCA tissue samples and cells, and this upregulation was correlated with tumor size, lymph node invasion, TNM stage and postoperative recurrence in CCA patients. Overexpression of CCAT2 could serve as an independent prognostic indicator for CCA. Additionally, overexpression of CCAT2 was a dismal prognostic indicator for patients with CCA. Furthermore, CCAT2 silencing caused tumor suppressive effects via reducing cell proliferation, migration and invasion, inducing cell apoptosis and reversing the EMT process in HuCCT1 and CCLP1 cells. Collectively, our data illustrated that lncRNA CCAT2 played an oncogenic role in CCA and may offer a potential therapeutic target for treating this fatal disease. PMID- 29329035 TI - Esterification of trans-aconitic acid improves its anti-inflammatory activity in LPS-induced acute arthritis. AB - trans-Aconitic acid (TAA) is an abundant constituent in the leaves of Echinodorus grandiflorus, a medicinal plant used to treat rheumatoid arthritis in Brazil. Esterification was explored as a strategy to increase lipophilicity and biopharmaceutical properties of TAA, a highly polar tricarboxylic acid. We herein report the synthesis of TAA esters via Fischer esterification with ethanol, n butanol and n-octanol. The reaction kinetics was investigated to produce mono-, di- and tri- derivatives. Mono- and diesters of TAA were obtained as a mixture of positional isomers, whereas the triesters were recovered as pure compounds. The obtained esters were screened in a model of acute arthritis induced by the injection of LPS in the knee joint of Swiss mice. The diesters were the most active compounds, regardless of the alcohol employed in the reaction, whereas bioactivity of the derivatives improved by increasing the length of the aliphatic chain of the alcohol employed in esterification. In general, the esters showed higher potency than TAA. When administered orally to mice at doses of 0.017-172.3 MUmol/Kg, the diethyl, di-n-butyl and di-n-octyl esters of TAA reduced the cellular infiltration into the knee joint, especially of neutrophils. The study identified diesters of TAA as potential useful derivatives for the management of rheumatoid arthritis and other inflammatory diseases. PMID- 29329036 TI - Crocin improves the proliferation and cytotoxic function of T cells in children with acute lymphoblastic leukemia. AB - OBJECTIVE: Immunotherapy is important to improve the survival of children with acute lymphoblastic leukemia (ALL). This study aimed to assess the effects of crocin on the proliferation and function of T cells isolated from children with ALL. METHODS: The mononuclear cells were isolated from peripheral blood of children with ALL and then treated with different final concentrations of crocin. The levels of different cytokines secreted by T cells and the ratio of CD4 and CD8 were measured. Tail DNA% (TDNA), Tail moment (TM), Tail length (TL) and sister chromatid exchange (SCE) were detected to assess DNA damage of T cells. RESULTS: Crocin significantly promoted T cell proliferation and the secretion of IL-2 and IL-4 in a concentration dependent manner. In addition, crocin increased CD4/CD8 ratio of T subset. Crocin itself caused no significant damage to T cells but reduced DNA damage in T cells treated with Ara-C. CONCLUSIONS: Crocin could improve the proliferation and cytotoxic function of T cells, and reduce DNA damage caused by Ara-C. PMID- 29329037 TI - Phloem function: a key to understanding and manipulating plant responses to rising atmospheric [CO2]? AB - Increasing atmospheric carbon dioxide concentration ([CO2]) directly stimulates photosynthesis and reduces stomatal conductance in C3 plants. Both of these physiological effects have the potential to alter phloem function at elevated [CO2]. Recent research has clearly established that photosynthetic capacity is correlated to vascular traits associated with phloem loading and water transport, but the effects of elevated [CO2] on these relationships are largely unexplored. Plants also employ different strategies for loading sucrose and other sugars into the phloem, and there is potential for species with different phloem loading strategies to respond differently to elevated [CO2]. Recent research manipulating sucrose transporters and other key enzymes with roles in phloem loading show promise for maximizing crop performance in an elevated [CO2] world. PMID- 29329038 TI - Hallucinations as a presenting complaint in emergency departments: Prevalence, diagnosis, and costs. AB - Hallucinations occur in the context of many disorders. When experienced as distressing, they are a likely cause of presentation to emergency departments. Knowledge about the rates, diagnoses, and associated costs of hallucinations in emergency departments however is currently lacking. In this study, we analysed patients' presenting complaints in Western Australia's Emergency Department Data Collection dataset during a two year period (n = 1,798,754). Visits to emergency departments because of distressing hallucinations were more common than previously assumed. Hallucinations (auditory, visual, undifferentiated modality) accounted for 1.8% of all mental health-related presentations and 0.09% of all general health presentations (84.7 per 100,000 persons). Psychotic disorders accounted for a third of all presentations, and hallucinations without a clear medical or psychiatric cause represented 17% of the sample. Hallucination presentations had significantly prolonged lengths of stay compared to other mental health presentations (15 vs 7.5h, p < 0.001) and were linked to frequent re-admissions (average of 7.4 visits per year). Cost estimates revealed that hallucinations were in the top-10 most costly mental health complaint, and twice as costly to treat as delusions. Altogether, the service utilisation and care needs of people with distressing hallucinations outside of mental health services appear much larger than usually estimated. PMID- 29329039 TI - An investigation into the drivers of avolition in schizophrenia. AB - Over a century of research has documented that avolition is a core symptom in schizophrenia. However, the drivers of avolition remain unclear. Conceptually, there are at least two potential mutually compatible drivers that could cause avolition in schizophrenia. First, people with schizophrenia might have differences in preferences that result in less goal-directed behavior than non clinical populations (preference-differences). Second, people with schizophrenia might have difficulty translating their preferences into manifest behavior at rates similar to non-clinical populations (psychological-inertia). In the present work, we modified and validated a well-validated paradigm from the motivation/decision making literature to compare levels of preference-differences and psychological-inertia. To measure preference-differences, people with and without schizophrenia choose between a lower-valenced and higher-valenced image. We measured the rate at which the normatively lower-valenced image was preferred. To measure psychological-inertia, both groups were given the opportunity to volitionally switch from a lower-valenced image and view a higher-valenced image. Contrary to expectations, people with schizophrenia did not differ on either preference-differences or psychological-inertia. Statistical analysis revealed that the possibility of a Type II error for even a weak effect was small. The present data suggest new avenues for research investigating mechanisms underlying avolition and clinical interventions targeting avolition in schizophrenia. PMID- 29329041 TI - Thiol/disulphide homeostasis in bipolar disorder. AB - Bipolar disorder (BD) patients have increased oxidative stress, which can disturb thiol/disulphide homeostasis, causing disulphide formation. The aim of the study is to investigate dynamic thiol/disulphide (SH/SS) homeostasis in BD patients, which is a novel evaluation method of oxidative status. Ninety-four BD patients (50 in the manic episode and 44 in remission) and 44 healthy controls were included in the study. Blood serum native thiol (SH) and total thiol (ToSH) concentrations were measured in a paired test. The half value of the difference between native thiol and total thiol concentrations was calculated as the disulphide (SS) bond amount. Serum native thiol levels of the mania group were found to be lower than the remission and the control groups. There was a significant difference between the remission group and the control group in terms of native thiol. Serum total thiol level was lower in mania group than the control group. Detection of oxidative molecules for BD could be helpful, especially in treatment, follow-up periods and reducing morbidity. The results of our study besides the data available in the literature support that thiol and disulphide levels are useful markers for BD and promising therapeutic targets in terms of future pharmacological modulation. PMID- 29329040 TI - Do adverse life events at first onset of auditory verbal hallucinations influence subsequent voice characteristics? Results from an epidemiological study. AB - Understanding what happens at first onset of auditory verbal hallucinations (AVHs) is extremely important on a clinical and theoretical level. Previous studies have only focused on age with regard to first onset of AVHs. In the current epidemiological study, we examined a number of aspects relating to first onset of AVHs, such as the role of adverse life events at first onset of AVHs on symptom severity and general mental health. For this purpose, we compared participants who reported adverse life events at first onset of AHVs (adverse trigger group; N = 76) to those that did not report any specific events at first onset of AVHs (no-adverse-trigger group; N = 59) on a large array of variables. Results showed that AVHs in the adverse-trigger group were experienced as more emotional compared to the no-adverse-trigger group. In addition, the adverse trigger group more often reported hallucinations in other (non-auditory) sensory modalities (e.g. visual) compared to the no-adverse-trigger group. Furthermore, the adverse-trigger group reported poorer general mental health, reported having contact with mental health professionals more often, and also reported more frequently taking medication for psychological problems in general. The implications of these findings are discussed. PMID- 29329042 TI - Assessment of the efficacy of omega-3 fatty acids on metabolic and inflammatory parameters in patients with schizophrenia taking clozapine and sodium valproate. AB - Omega-3 fatty acid (FA) supplementation has been reported to improve several cardio-metabolic risk factors. We aimed to assess the efficacy of omega-3 fatty acids on metabolic and inflammatory indices in patients with schizophrenia who were taking clozapine and sodium valproate. All patients were on a stable dose of 300-400mg of clozapine for 3 months. Subjects were randomized to treatment with either omega-3 fatty acid (4gr/day) or a placebo for 8 weeks. Height, weight, abdominal circumference, serum lipid profile, fasting blood glucose (FBG), and serum high sensitivity-C-reactive protein (hs-CRP) were determined at baseline and after 8 weeks of treatment. Fifty six subjects were recruited into the study. Patients with schizophrenia who were in the group receiving omega-3 FA capsules had an improvement in some anthropometric indices including weight, BMI, wrist and waist circumference, compared to the placebo group. Only changes in waist circumferences remained significantly different after adjustment for serum fasted TG. Our results showed omega-3 FA supplementation can improve some anthropometric indices in patients with schizophrenia who are taking clozapine pharmacotherapy. PMID- 29329043 TI - Impact of synthetic cannabinoid use on hospital stay in patients with bipolar disorder versus schizophrenia, or other psychotic disorders. AB - Synthetic cannabinoid products have become popular and have led to an increased number of patients presenting to emergency departments and psychiatric hospitals. The purpose of this study was to evaluate the impact of synthetic cannabinoid use at admission on length of stay and doses of antipsychotics at discharge in individuals with bipolar disorder, schizophrenia and other psychotic disorders. We retrospectively examined medical records of 324 inpatients admitted from January 2014 to July 2015. We found that synthetic cannabinoid use predicted length of stay and antipsychotic dose using structural equation modeling. Further, the association of synthetic cannabinoid use with length of stay was partly mediated by antipsychotic dose. These associations were independent of specific diagnosis. In conclusion, patients with bipolar disorder, schizophrenia, or other psychotic disorders who reported synthetic cannabinoid use at admission had shorter length of stay and received lower doses of antipsychotics, irrespective of clinical diagnoses. PMID- 29329044 TI - Neurological soft signs in bipolar and unipolar disorder: A case-control study. AB - Neuropsychiatric disorders are associated with neurological soft signs (NSS), including motor, sensory, and inhibitory dysfunction. The present study aims at determining the prevalence of NSS and explore the association of sociodemographic characteristics with the occurrence of NSS in patients with bipolar disorder and unipolar depression compared to healthy controls. A case-control study included a sample of 50 bipolar and unipolar patients and 50 healthy controls. NSS subscales of the Neurological Evaluation Scale (NES) were administered to each participant. Significant differences were found in the total NES score, motor coordination, sensory integration, sequence of complex motor act and other subscales among the three groups. Compared with healthy controls, patients with bipolar disorder showed significantly more total NSS signs, motor coordination signs and sensory integration signs. When compared with patients with unipolar disorder, patients with bipolar disorder showed significantly more sensory integration signs and a trend of difference in the sequencing of complex motor acts and other subscales. Our findings suggest that NSS may be specifically associated with bipolar disorder but not unipolar depression. The specificity of NSS expression has the potential to help the discrimination of bipolar disorder from disorders less likely to have a neurodevelopmental component such as major depression. PMID- 29329045 TI - Increased depression symptom score in newly diagnosed type 2 diabetes patients. AB - The aim was to investigate the association between diabetes duration and depressive symptoms in type 2 diabetes. The DIAREG registry used data of a nationwide general medicine practice database (Disease Analyzer, Germany) augmented by prospective data from patient reported outcomes (PRO) including Center of Epidemiological Studies Depression Scale (CES-D: <16 vs. >=16) and the SF-36. Multiple logistic regression models were used to investigate the association of diabetes duration with PROs. Overall, 1807 type 2 diabetes patients were registered in 108 practices. From 270 (15%) patients complete PRO could be collected, which were similar with respect to age, sex, body mass index, HbA1c, diabetes duration and treatment to patients with incomplete data (p>=0.05). Patients with a longer diabetes duration (reference: <2 years) displayed a significantly increased odds of having no indication of depression (CES-D <16: 66%) (Odds Ratio, 95%CI: 2-<5 years: 5.9, 1.2-29.6; 5-<10 years: 6.2, 1.3-28.7; >=10 years: 5.6, 1.2-23.1), after adjusting for age, sex, BMI, diabetes complications, antidepressants and glucose-lowering treatment. Patients with <2 years diabetes duration also exhibited a significantly decreased mean mental component score (SF-36: <2 years: 50, 2-<5 years: 69). In type 2 diabetes with a short duration an increased depressive symptom score was observed. PMID- 29329046 TI - Social distance toward people with schizophrenia is associated with favorable understanding and negative stereotype. AB - Previous studies have suggested the consequence of mental health-related public stigma: the problem of knowledge may develop into problem of attitude and behaviour. However, this has not been directly explored in a longitudinal study. As the secondary analysis from our previous randomized controlled trial (RCT) for 219 participants who completed the survey at the 12-month follow-up, we aimed to investigate whether the knowledge and attitude components of stigma toward people with schizophrenia affect each other. At baseline and at 12 months, three types of stigma scales were measured: favorable understanding, negative stereotype, and social distance toward people with schizophrenia. A structured equation model was fitted to the trajectory of stigma scales taking into account the effect of the other stigma components and the interventions. The results showed that greater social distance toward people with schizophrenia at baseline was associated with less favorable understanding and more negative stereotype at the 12-month follow up. This was not in line with the existing consequences from the previous studies; however, in line with the recent RCTs showing that social contact is the most effective intervention to reduce stigma. Future observational studies with a larger sample size are needed to clarify this relationship further. PMID- 29329047 TI - The connection between subjective nearness-to-death and depressive symptoms: The mediating role of meaning in life. AB - Depression is characterized by a wide range of emotional, cognitive, and physical symptoms. Two prominent features of depressive symptoms are a sense that life has no meaning on the one hand, and that life is not worth living on the other hand. In recent years, the subjective perception of how close one feels to his/her death has gained importance as a significant factor associated with various aspects of physical and psychological well-being. Thus, the current study examined the connection between subjective nearness-to-death, meaning in life, and depressive symptoms, and assessed whether meaning in life mediates the connection between subjective nearness-to-death and depressive symptoms. Data was collected from 268 participants between the ages of 28 and 74 (mean age = 46.75), who completed measures of subjective nearness-to-death, meaning in life, and depressive symptoms. Results yielded a significant positive connection between subjective nearness-to-death and depressive symptoms, as well as a negative connection between meaning in life and depressive symptoms. Moreover, meaning in life was found to mediate the connection between subjective nearness-to-death and depressive symptoms. Findings are discussed in light of the Terror Management Theory, and potential clinical implications are suggested. PMID- 29329048 TI - Characterizing anger-related affect in individuals with posttraumatic stress disorder using ecological momentary assessment. AB - This study employed secondary analyses of existing ecological momentary assessment (EMA) data to characterize hostile and irritable affect in the day-to day experience of 52 smokers with, and 65 smokers without, posttraumatic stress disorder (PTSD). EMA monitoring occurred over a mean of 8.2 days, and participants responded to an average of 2.8 random prompts/day. Analyses included Wilcoxon rank sum tests of group differences, and path analyses of cross-lagged multilevel models. Participants with PTSD endorsed a significantly higher proportion of total EMA entries indicating hostile affect and irritable affect than did individuals without PTSD. Cross-lagged analyses indicated that over a period of hours, PTSD symptoms significantly predicted subsequent hostile and irritable affect, but hostile and irritable affect did not predict subsequent PTSD symptoms. Findings suggest that day-to-day exposure to PTSD-related trauma cues may contribute to chronically elevated levels of anger-related affect. Such heightened affective arousal may, in turn, underlie an increased risk for verbal or physical aggression, as well as other health and quality-of-life related impairments associated with PTSD. Clinical implications include conceptualizing anger treatment in the broader context of trauma history and symptoms, and specifically targeting physiological arousal and maladaptive hostile cognitions triggered by trauma reminders in patients with PTSD. PMID- 29329049 TI - The traumatized body: Long-term PTSD and its implications for the orientation towards bodily signals. AB - Orientation to bodily signals is defined as the way somatic sensations are attended, perceived and interpreted. Research suggests that trauma exposure, particularly the pathological reaction to trauma (i.e., PTSD), is associated with catastrophic and frightful orientation to bodily signals. However, little is known regarding the long-term ramifications of trauma exposure and PTSD for orientation to bodily signals. Less is known regarding which PTSD symptom cluster manifests in the 'somatic route' through which orientation to bodily signals is altered. The current study examined the long-term implications of trauma and PTSD trajectories on orientation to bodily signals. Fifty-nine ex-prisoners of war (ex POWs) and 44 controls were assessed for PTSD along three time-points (18, 30 and 35 years post-war). Orientation to bodily signals (pain catastrophizing and anxiety sensitivity-physical concerns) was assessed at T3. Participants with a chronic PTSD trajectory had higher pain catastrophizing compared to participants with no PTSD. PTSD symptom severity at T2 and T3 mediated the association between captivity and orientation. Among PTSD symptom clusters, hyperarousal at two time points and intrusion at three time-point mediated the association between captivity and orientation. These findings allude to the cardinal role of long term PTSD in the subjective experience of the body following trauma. PMID- 29329050 TI - Factors influencing the severity of behavioral phenotype in autism spectrum disorders: Implications for research. AB - The phenotypic heterogeneity of Autism Spectrum Disorders (ASD) presents particular research challenges in the assessment of symptom severity, while the standardized Autism Diagnostic Observation Schedule (ADOS) scores present a severity metric, namely calibrated severity scores (CSS) that are relatively impervious to individual characteristics. To date, no studies have examined the convergent validity of CSS in Chinese sample populations. The present study investigated the validity of the ADOS-CSS using a sample of 321 children aged 2 18 years with ASD, and developed upon existing literature examining the influence of non-ASD-specific characteristics on other types of measures including Autism Diagnostic Interview-Revised (ADI-R), Social Responsiveness Scale (SRS), and Vineland Adaptive Behavior Scales (VABS). As expected, the findings revealed that the CSS were less influenced than ADOS-RAW scores by the demographic and developmental-level variables. Moreover, compared to the ADOS-CSS, the ADI-R, SRS and VABS were still strongly correlated with confounding factors, such as chronological age, intelligence quotients, and language-level. The results of this study corroborate the utilization of CSS as a more valid indicator of ASD severity than raw scores from ADOS and other instruments. PMID- 29329052 TI - Efficient and cost-effective generation of hepatocyte-like cells through microparticle-mediated delivery of growth factors in a 3D culture of human pluripotent stem cells. AB - Biomedical application of human pluripotent stem cell-derived hepatocyte-like cells (hPSC-HLCs) relies on efficient large-scale differentiation, which is commonly performed by a suspension culture of three-dimensional (3D) multicellular spheroids in bioreactors. However, this approach requires large amounts of growth factors (GFs) and the need to overcome limited diffusional transport posed by the inherent 3D structure of hPSC spheroids. Here, we have hypothesized that localized delivery of GFs by incorporation of GF-laden degradable polymeric microparticles (MPs) within the hPSC spheroids would circumvent such limitations. In this study, GFs for hepatocytic differentiation were encapsulated in gelatin-coated poly (l-lactic acid)/poly (DL-lactic-co glycolic acid) (PLLA/PLGA) MPs which were subsequently incorporated into the hPSC spheroids. Gene expression analyses demonstrated that MP delivery of the GFs resulted in similar expression levels of hepatocytic markers despite the use of 10-fold less total GFs. The differentiated HLCs in the MP group exhibited ultrastructure and functional characteristics comparable with the conventional soluble GF group. The generated HLCs in the MP group were successfully engrafted in an acute liver injury mouse model and maintained hepatocytic function after implantation. These results suggested that sustained and localized delivery of GFs using MPs might offer a novel approach towards scalable technologies for hepatocytic differentiation and engineer a better 3D microenvironment for cells. PMID- 29329051 TI - Non-genetic engineering of cytotoxic T cells to target IL-4 receptor enhances tumor homing and therapeutic efficacy against melanoma. AB - Adoptive transfer of cytotoxic T lymphocytes (CTLs) has been used as an immunotherapy in melanoma. However, the tumor homing and therapeutic efficacy of transferred CTLs against melanoma remain unsatisfactory. Interleukin-4 receptor (IL-4R) is commonly up-regulated in tumors including melanoma. Here, we studied whether IL-4R-targeted CTLs exhibit enhanced tumor homing and therapeutic efficacy against melanoma. CTLs isolated from mice bearing melanomas were non genetically engineered with IL4RPep-1, an IL-4R-binding peptide, using a membrane anchor composed of dioleylphosphatidylethanolamine. Compared to control CTLs, IL 4R-targeted CTLs showed higher binding to melanoma cells and in vivo tumor homing. They also exerted a more rapid and robust effector response, including increased cytokine secretion and cytotoxicity against melanoma cells and enhanced reprogramming of M2-type macrophages to M1-type macrophages. Moreover, IL-4R targeted CTLs efficiently inhibited melanoma growth and reversed the immunosuppressive tumor microenvironment. These results suggest that non genetically engineered CTLs targeting IL-4R have potential as an adoptive T cell therapy against melanoma. PMID- 29329053 TI - Long Term Safety Area Tracking (LT-SAT) with online failure detection and recovery for robotic minimally invasive surgery. AB - Despite the benefits introduced by robotic systems in abdominal Minimally Invasive Surgery (MIS), major complications can still affect the outcome of the procedure, such as intra-operative bleeding. One of the causes is attributed to accidental damages to arteries or veins by the surgical tools, and some of the possible risk factors are related to the lack of sub-surface visibilty. Assistive tools guiding the surgical gestures to prevent these kind of injuries would represent a relevant step towards safer clinical procedures. However, it is still challenging to develop computer vision systems able to fulfill the main requirements: (i) long term robustness, (ii) adaptation to environment/object variation and (iii) real time processing. The purpose of this paper is to develop computer vision algorithms to robustly track soft tissue areas (Safety Area, SA), defined intra-operatively by the surgeon based on the real-time endoscopic images, or registered from a pre-operative surgical plan. We propose a framework to combine an optical flow algorithm with a tracking-by-detection approach in order to be robust against failures caused by: (i) partial occlusion, (ii) total occlusion, (iii) SA out of the field of view, (iv) deformation, (v) illumination changes, (vi) abrupt camera motion, (vii), blur and (viii) smoke. A Bayesian inference-based approach is used to detect the failure of the tracker, based on online context information. A Model Update Strategy (MUpS) is also proposed to improve the SA re-detection after failures, taking into account the changes of appearance of the SA model due to contact with instruments or image noise. The performance of the algorithm was assessed on two datasets, representing ex-vivo organs and in-vivo surgical scenarios. Results show that the proposed framework, enhanced with MUpS, is capable of maintain high tracking performance for extended periods of time ( ? 4 min - containing the aforementioned events) with high precision (0.7) and recall (0.8) values, and with a recovery time after a failure between 1 and 8 frames in the worst case. PMID- 29329054 TI - Relationship between sedentary behavior and depression: A mediation analysis of influential factors across the lifespan among 42,469 people in low- and middle income countries. AB - BACKGROUND: Sedentary behavior (SB) is associated with diabetes, cardiovascular disease and low mood. There is a paucity of multi-national research investigating SB and depression, particularly among low- and middle-income countries. This study investigated the association between SB and depression, and factors which influence this. METHODS: Cross-sectional data were analyzed from the World Health Organization's Study on Global Ageing and Adult Health. Depression was based on the Composite International Diagnostic Interview. The association between depression and SB (self-report) was estimated by multivariable linear and logistic regression analyses. Mediation analysis was used to identify influential factors. RESULTS: A total of 42,469 individuals (50.1% female, mean 43.8 years) were included. People with depression spent 25.6 (95%CI8.5-42.7) more daily minutes in SB than non-depressed participants. This discrepancy was most notable in adults aged >= 65y (35.6min more in those with depression). Overall, adjusting for socio-demographics and country, depression was associated with a 1.94 (95%CI1.31-2.85) times higher odds for high SB (i.e., >= 8h/day). The largest proportion of the SB-depression relationship was explained by mobility limitations (49.9%), followed by impairments in sleep/energy (43.4%), pain/discomfort (31.1%), anxiety (30.0%), disability (25.6%), cognition (16.1%), and problems with vision (11.0%). Other health behaviors (physical activity, alcohol consumption, smoking), body mass index, and social cohesion did not influence the SB-depression relationship. CONCLUSION: People with depression are at increased risk of engaging in high levels of SB. This first multi-national study offers potentially valuable insight for a number of hypotheses which may influence this relationship, although testing with longitudinal studies is needed. PMID- 29329055 TI - Altered brain structure in women with premenstrual syndrome. AB - BACKGROUND: Functional brain abnormalities have been noted in premenstrual syndrome (PMS). However, the brain structural alterations related to PMS remain unclear. This study aimed to identify possible abnormalities in gray matter (GM) volumes and structural covariance patterns among PMS patients. METHODS: Structural magnetic resonance imaging data were obtained from 20 PMS patients and 20 healthy controls. Voxel-based morphometry (VBM) analysis was applied to examine GM volumes changes between the two groups. Receiver operating characteristic (ROC) curve was used to investigate the most reliable biomarker for distinguishing PMS patients from health controls based on the intergroup differences. Correlation analysis was then performed to assess relationships between the daily rating of severity of problems (DRSP) and abnormal brain regions. Finally, the regions identified from VBM analysis were served as seeds to characterize the whole-brain structural covariance patterns. RESULTS: Compared with healthy controls, PMS patients showed increased GM volumes in the precuneus/posterior cingulate cortex (precuneus/PCC) and thalamus, and decreased GM volumes in the insula. The precuneus/PCC exhibited the highest classification power by ROC analysis and positively correlated with the DRSP. Moreover, different patterns of structural covariance in the two groups were mainly located in the dorsolateral prefrontal cortex, anterior cingulate cortex, angular gyrus and hippocampus. LIMITATIONS: This study is limited by a small sample and narrow age range of participants. CONCLUSIONS: Our findings may provide preliminary evidence for brain morphology alterations in PMS patients and contribute to a better understanding of the pathophysiology of PMS. PMID- 29329056 TI - Subjective and objective sleep discrepancy in symptomatic bipolar disorder compared to healthy controls. AB - BACKGROUND: Bipolar disorder (BD) is associated with sleep misperception. The objective of this study was to investigate the correlation between subjective and objective measures of sleep in persons with symptomatic bipolar disorder (BDS) compared to healthy controls (HC). METHODS: We studied 24 BDS and 30 HC subjects similar in age, race and sex. Subjective sleep was measured with Pittsburgh Sleep Quality Index (PSQI) and objective sleep with 7-days of actigraphy. Absolute discrepancy variables were calculated by subtracting objective sleep latency (SL) and total sleep time (TST) on actigraphy from their respective subjective estimates from PSQI. Mood symptoms were measured with Young Mania Rating Scale and Hamilton Depression Rating Scale. RESULTS: In the BDS group, subjective TST did not significantly correlate with objective TST, while it correlated in the HC group. The BDS group had significantly higher absolute discrepancy between subjective and objective SL and TST compared to the HC group. Multivariable regression analysis showed that severity of depression was associated with greater absolute discrepancy between subjective and objective TST within the BDS group. LIMITATIONS: Subjects are from a tertiary care center and were on medications for treatment of BD symptoms. CONCLUSION: There is low correlation between subjective and objective TST in BDS subjects and more severe depressive symptoms are associated with greater absolute discrepancy in TST. Objective rather than subjective measures of sleep, such as actigraphy, may be needed to evaluate sleep in BD subjects. Cognitive-behavioral interventions to address sleep misperception and associated depressed mood may be indicated in BD. PMID- 29329057 TI - Chronic corticosterone-induced depression mediates premature aging in rats. AB - BACKGROUND: Stress hormones such as corticosterone (CORT) play an essential role in the development of depression. Chronic CORT administration has been shown to induce dysfunction in the hypothalamic-pituitary-adrenal axis leading to depression, which was in turn associated with accelerated aging. However, the effect of CORT administration on aging remains unclear. METHODS: Rats were acclimatized for 1 week and then injected daily with CORT (40mg/kg) or vehicle (n = 10 each) for 21 consecutive days. Age-related indexes were then compared between CORT-treated rats and control rats. RESULTS: CORT induced affective behaviors indicative of depressive-like symptoms in rats, including reduced sucrose preference and increased immobility time in the forced swimming test. CORT-treated rats exhibited telomere shortening, possibly contributing to decreased telomerase activity and down-regulated expression of telomere-binding factor 2, correlated with enhanced oxidative damage. This was associated with inhibition of sirtuin 3 leading to reduced activities of superoxide dismutase 2 and glutathione reductase. CORT-treated rats showed degenerated mitochondrial functions represented by decreased adenosine triphosphate production, decreased nicotinamide adenine dinucleotide+ content, and decreased activity of nicotinamide phosphoribosyltransferase. LIMITATIONS: The group sample sizes were small, and only male rats and a single dose level of CORT were used. CONCLUSION: These findings demonstrate that CORT-induced depression may be involved in mediating the pathophysiology of premature aging in rats. PMID- 29329058 TI - Association of comorbid personality disorders with clinical characteristics and outcome in a randomized controlled trial comparing two psychotherapies for early onset persistent depressive disorder. AB - BACKGROUND: Persistent depressive disorder (PDD) is associated with high rates of comorbid personality disorders (PD). The association of comorbid PD and clinical characteristics has not been systematically studied in PDD. Results regarding effects on treatment outcome are heterogeneous. METHODS: We analyzed the association of comorbid personality disorders with clinical characteristics and outcome in a randomized controlled trial comparing the disorder-specific Cognitive Behavioral Analysis System of Psychotherapy (CBASP) with nonspecific supportive psychotherapy (SP) in patients with early-onset PDD. The main outcome measure was the Hamilton Rating Scale for Depression (HRSD-24). Further baseline measures were comorbid axis-I diagnoses (SCID-I), quality of life (QLDS), global functioning (GAF), interpersonal problems (IIP-64) and childhood maltreatment (CTQ). RESULTS: Out of the 268 patients, 103 (38.4%) met criteria for at least one PD. PD was associated with higher rates of axis I comorbidities (mainly anxiety disorders) and interpersonal problems (patients with PD were more vindictive, more self-sacrificing, less assertive and more inhibited socially than patients without PD). There was no significant main effect of PD on treatment outcome and no significant interaction between PD and treatment group. LIMITATIONS: The main limitation was the exclusion of patients with certain personality disorders (antisocial, schizotypal, and borderline personality disorders). Furthermore, the study was underpowered to find interaction effects of small size. CONCLUSION: Persistently depressed patients with and without comorbid PD primarily seemed to differ in the rate of axis I comorbidity and the severity of interpersonal problems. Treatment outcomes appear to be not significantly affected by the presence of PD. PMID- 29329059 TI - Amyloid burden and incident depressive symptoms in preclinical Alzheimer's disease. AB - BACKGROUND: Relationships between depression and Alzheimer's disease (AD) may become clearer if studied in preclinical AD where dementia is not present. METHOD: The aim of this study was to evaluate prospectively, relationships between brain amyloid-beta (Abeta), depressive symptoms and screen positive depression in cognitively normal (CN) older adults. Depressive symptoms were measured with the Geriatric Depression Inventory (GDS-15) in CN adults from the Australian Imaging Biomarkers and Lifestyle (AIBL) study without depression at baseline and classified as having abnormally high (Abeta+; n = 136) or low (Abeta ; n = 449) Abeta according to positron emission tomography at 18-month intervals over 72 months. RESULTS: Incident cases of screen positive depression were not increased in Abeta+ CN adults although small increases in overall depressive symptoms severity (d = - 0.25; 95% CI, - 0.45, - 0.05) and apathy-anxiety symptoms (d = - 0.28; 95% CI - 0.48, - 0.08) were. LIMITATIONS: As the AIBL sample is an experimental sample, no individuals had severe medical illnesses or significant psychiatric disorders. Additionally, individuals who had evidence of screen-positive depression at screening were excluded from enrolment in the AIBL study. Thus, the current data can be considered only as providing a foundation for understanding relationships between Abeta and depression in preclinical AD. CONCLUSIONS: These results suggest that the presence of a depressive disorder or even increased depressive symptoms are themselves unlikely to be a direct consequence of increasing Abeta. New depressive disorders presenting in CN older adults could therefore be investigated for aetiologies beyond AD. PMID- 29329060 TI - Affective and cognitive reactivity to mood induction in chronic depression. AB - BACKGROUND: Chronic depression (CD) is strongly associated with childhood maltreatment, which has been proposed to lead to inefficient coping styles that are characterized by abnormal affective responsiveness and dysfunctional cognitive attitudes. However, while this notion forms an important basis for psychotherapeutic strategies in the treatment of CD, there is still little direct empirical evidence for a role of altered affective and cognitive reactivity in CD. The present study therefore experimentally investigated affective and cognitive reactivity to two forms of negative mood induction in CD patients versus a healthy control sample (HC). METHODS: For the general mood induction procedure, a combination of sad pictures and sad music was used, while for individualized mood induction, negative mood was induced by individualized scripts with autobiographical content. Both experiments included n = 15 CD patients versus n = 15 HC, respectively. Interactions between affective or cognitive reactivity and group were analyzed by repeated measurements ANOVAs. RESULTS: General mood induction neither revealed affective nor cognitive reactivity in the patient group while the control group reported the expected decrease of positive affect [interaction (IA) affective reactivity x group: p = .011, cognitive reactivity x group: n.s.]. In contrast, individualized mood induction specifically increased affective reactivity (IA: p = .037) as well as the amount of dysfunctional cognitions in patients versus controls (IA: p = .014). LIMITATIONS: The experiments were not balanced in a crossover design, causal conclusions are thus limited. Additionally, the differences to non-chronic forms of depression are still outstanding. CONCLUSIONS: The results suggest that in patients with CD, specific emotional activation through autobiographical memories is a key factor in dysfunctional coping styles. Psychotherapeutic interventions aimed at modifying affective and cognitive reactivity are thus of high relevance in the treatment of CD. PMID- 29329061 TI - Experimental effects of acute exercise duration and exercise recovery on mood state. AB - OBJECTIVE: Accumulating evidence suggests that, in addition to various psychosocial parameters, affective responses to exercise play an important role in subserving future exercise behavior. This study comprehensively evaluated whether acute exercise duration and recovery period influenced the relationship between moderate-intensity walking exercise and mood profile. METHOD: We employed a randomized controlled cross-over trial. Participants completed two laboratory visits, separated by one-week. One of the visits involved a mood profile assessment with no exercise, while the other visit involved a mood profile assessment after an acute bout of exercise. Participants (N = 352; 22 per group; young [Mage = 21 yrs] healthy adults) were randomized into one of 16 experimental groups: 10, 20, 30, 45 or 60min bout of exercise coupled with either a 5, 15 or 30min recovery period. The exercise bout was of moderate-intensity (40-59% of HRR). Mood profile was assessed from the POMS survey, considering subscales of depression, anger and hostility. RESULTS: For all three mood profile parameters, there was no evidence of a group x time interaction effect. However, the main effect for time was statistically significant for each mood parameter. These significant results demonstrate that, generally, exercise had a favorable effect on each of the mood profile, regardless of exercise duration and recovery period. In addition to the significant main effects for time, we also observed a significant main effect for group for the mood parameter hostility. With the exception of the group 13 (60min of exercise with 5min recovery) and the 3 groups that employed a 10-min bout of exercise (groups 1-3), all other experimental groups had a lower (better) hostility score after the exercise visit. CONCLUSIONS: Generally, exercise had a favorable effect on various mood profiles, regardless of exercise duration (between 10 and 60min) and recovery period (between 5 and 30min). PMID- 29329062 TI - Amygdala response to emotional faces in seasonal affective disorder. AB - BACKGROUND: Seasonal affective disorder (SAD) is characterized by seasonally recurring depression. Heightened amygdala activation to aversive stimuli is associated with major depressive disorder but its relation to SAD is unclear. We evaluated seasonal variation in amygdala activation in SAD and healthy controls (HC) using a longitudinal design targeting the asymptomatic/symptomatic phases of SAD. We hypothesized increased amygdala activation to aversive stimuli in the winter in SAD individuals (season-by-group interaction). METHODS: Seventeen SAD individuals and 15 HCs completed an implicit emotional faces BOLD-fMRI paradigm during summer and winter. We computed amygdala activation (SPM5) to an aversive contrast (angry & fearful minus neutral) and angry, fearful and neutral faces, separately. Season-by-group and main effects were evaluated using Generalized Least Squares. In SAD individuals, we correlated change in symptom severity, assessed with The Hamilton Rating Scale for Depression - Seasonal Affective Disorder version (SIGH-SAD), with change in amygdala activation. RESULTS: We found no season-by-group, season or group effect on our aversive contrast. Independent of season, SAD individuals showed significantly lower amygdala activation to all faces compared to healthy controls, with no evidence for a season-by-group interaction. Seasonal change in amygdala activation was unrelated to change in SIGH-SAD. LIMITATIONS: Small sample size, lack of positive valence stimuli. CONCLUSIONS: Amygdala activation to aversive faces is not increased in symptomatic SAD individuals. Instead, we observed decreased amygdala activation across faces, independent of season. Our findings suggest that amygdala activation to angry, fearful and neutral faces is altered in SAD individuals, independent of the presence of depressive symptoms. PMID- 29329063 TI - Seasonality of depressive symptoms in women but not in men: A cross-sectional study in the UK Biobank cohort. AB - BACKGROUND: We examined whether seasonal variations in depressive symptoms occurred independently of demographic and lifestyle factors, and were related to change in day length and/or outdoor temperature. METHODS: In a cross-sectional analysis of >150,000 participants of the UK Biobank cohort, we used the cosinor method to assess evidence of seasonality of a total depressive symptoms score and of low mood, anhedonia, tenseness and tiredness scores in women and men. Associations of depressive symptoms with day length and mean outdoor temperature were then examined. RESULTS: Seasonality of total depressive symptom scores, anhedonia and tiredness scores was observed in women but not men, with peaks in winter. In women, increased day length was associated with reduced reporting of low mood and anhedonia, but with increased reporting of tiredness, independent of demographic and lifestyle factors. Associations with day length were not independent of the average outdoor temperature preceding assessment. LIMITATIONS: This was a cross-sectional investigation - longitudinal studies of within-subject seasonal variation in mood are necessary. Outcome measures relied on self-report and measured only a subset of depressive symptoms. CONCLUSION: This large, population-based study provides evidence of seasonal variation in depressive symptoms in women. Shorter days were associated with increased feelings of low mood and anhedonia in women. Clinicians should be aware of these population-level sex differences in seasonal mood variations in order to aid recognition and treatment of depression and subclinical depressive symptoms. PMID- 29329064 TI - User acceptability of the diagnosis of prolonged grief disorder: How do professionals think about inclusion in ICD-11? AB - BACKGROUND: For the next edition of the International Statistical Classification of Diseases (ICD-11) it is proposed to include prolonged grief disorder as a new diagnosis. The diagnosis describes persistent intensive and disabling grief reactions to bereavement (WHO, 2016b). The aim of the present survey was to determine the extent to which the diagnosis is accepted by practitioners in the healthcare and psychosocial field. METHODS: A total of 2088 German-speaking professionals in the fields of psychotherapy, psychology, counselling, medicine and palliative care completed the online survey. RESULTS: 42.4% of the participants felt that the advantages of including the diagnosis outweigh the disadvantages, 32.9% came to the conclusion that there are more disadvantages. The remaining 24.7% stated that advantages and disadvantages are balanced. The proposed classification as separate diagnosis was supported by 24.8%, while 60.0% preferred alternatives (e.g. as subtype of adjustment disorder). Furthermore, a time criterion of at least 12 months was voted for considerably more frequently (49.2%) than the proposed 6 months (11.3%). Objections were predominantly expressed with regard to pathologization of normal grief and to the difficulty of adequate crosscultural application of the diagnosis. LIMITATIONS: Results are limited to predominantly German health-care professionals. The items did not undergo psychometric analyses. CONCLUSIONS: The disagreement about the diagnosis found in specialist literature is also reflected in the responses by the participants. The present results provide stimulation for future questions and validation studies carried out as part of the ICD revision. PMID- 29329065 TI - Factors associated with depression among homeless mothers. Results of the ENFAMS survey. AB - PURPOSE: Women are disproportionately likely to suffer from depression. This is especially true for those who experience socioeconomic hardship, such as homelessness. In France, among homeless mothers many are migrant. However, it is not clear whether risk factors associated with depression are specific for this group or the same as in the general population. Our objective was to describe socio-demographic, relational, living and housing conditions and health factors associated with depression among homeless mothers. METHODS: The ENFAMS survey, conducted via face-to-face bilingual interviews with a representative sample of homeless families in the Paris region (January-May 2013, n = 733 mothers). Mothers reported their socio-demographic characteristics, housing conditions including residential mobility, as well as physical and mental health. Depression was ascertained using the Composite International Diagnostic Interview (CIDI). Factors associated with mother's depression were studied in weighted Poisson regression models with robust error variance. RESULTS: The prevalence of depression among participating mothers was 28.8%. In multivariate analyses, depression was associated with fluency in French (PR = 1.88 95% CI 1.40; 2.51), suicide risk (PR = 2.26, 95% CI 1.82; 2.82), post-traumatic stress disorder (PR = 1.97, 95% CI 1.50; 2.60), and unmet health needs (PR = 1.68, 95% CI 1.09; 2.57). CONCLUSIONS: Homeless mothers have high levels of depression and associated psychiatric comorbidities. Associated risk factors appear to be both specific for this group and shared with mothers in the general population. Improvements in the monitoring of mental health difficulties as well as access to appropriate medical care in this vulnerable population may help improve health and social outcomes. PMID- 29329068 TI - "Subcutaneous emphysema" is not always actually in the subcutaneous plane. A Case of subfascial emphysema after laparoscopy. PMID- 29329066 TI - Association of suicidal risk with ratings of affective temperaments. AB - BACKGROUND: Ratings of particular temperament-types with the TEMPS-A autoquestionnaire have been associated with suicidal risk, and combinations of such ratings may enhance the association. However, the predictive value of scores for individual temperaments and combinations remains to be quantified. METHOD: We evaluated associations of TEMPS-A ratings for anxious (anx), cyclothymic (cyc), dysthymic (dys), hyperthymic (hyp) and irritable (irr) temperaments, with a history of suicidal acts or reported suicidal ideation in 882 patients with bipolar (BD; n = 509), major depressive (MDD; n = 268) or anxiety (ANX; n = 105) disorders. RESULTS: With BD, scores for cyc and irr were highest and anx lowest; with MDD, dys scored highest, hyp lowest; anx was highest with ANX and MDD. Women (n = 497) had higher anx and cyc scores than men; scores for irr and hyp decreased with age. Scores for dys, anx, and cyc, were higher, and hyp lower, with greater HDRS21 depression ratings. Among 347 suicidal subjects (112 with attempts), cyc, dys, and irr scores were higher, hyp lower. Pooled score [cyc+ dys+ irr - hyp] best distinguished subjects with suicide attempts versus nonsuicidal subjects, including in Receiver-Operating Characteristic (ROC) analysis (AUC for acts = 70.1% [64.9- 75.3]). Multivariable modeling associated suicidal acts with TEMPS-A [cyc+ dys+ irr - hyp] composite-score, depression severity, BD or MDD diagnosis, and older at illness-onset. CONCLUSIONS: Subjects with suicidal acts or ideation were best distinguished by composite TEMPS-A score [cyc+ dys+ irr - hyp]. These factors should help to identify those at suicidal risk. PMID- 29329069 TI - Supraclavicular brachial plexus block is an alternative to pectoral nerve block 1 for contracture reconstruction post mastectomy. PMID- 29329067 TI - Case report: Iatrogenic brachial artery dissection with complete anterograde occlusion during elective arterial line placement. AB - INTRODUCTION: Brachial arterial catheters provide a more accurate reflection of central aortic arterial pressure compared to their radial counterparts. Although brachial arterial line complications are uncommon, we report a case of a rare iatrogenic brachial artery dissection with complete anterograde occlusion from elective arterial line placement. PRESENTATION OF CASE: A 41-year-old female presented for a right upper and middle lobe resection of a large neuroendocrine lung cancer. A brachial arterial line was inserted for continuous blood pressure monitoring using clinical landmarks. Six hours postoperatively the left hand was noted to be pale, cool and pulseless with complete paraesthesia. Thrombus was initially suspected on computed tomography angiography. Upon return to theatre, extensive dissection of the posterior brachial arterial wall was identified. CONCLUSION: We review our diagnostic pathway and treatment of this rare complication. Recommendations to minimise the risks of complications from brachial arterial line insertion are also overviewed. We recommend the routine utilization of ultrasound-guided technique and regular post-insertion neurovascular monitoring for the prevention and early recognition of complications from brachial artery catheter insertion. PMID- 29329070 TI - An alternative technique to use the Trachway(r) for nasotracheal intubation. PMID- 29329071 TI - Synthesis, anticancer activity and mechanism of action of new thiazole derivatives. AB - Thiazole derivatives are recognized to possess various biological activities as antiparasitic, antifungal, antimicrobial and antiproliferative. The present work reports the synthesis of 22 new substances belonging to two classes of compounds: thiosemicarbazones and thiazoles, with the purpose of developing new drugs that present high specificity for tumor cells and low toxicity to the organism. A cytotoxic screening was performed to evaluate the performance of the new derivatives in five tumor cell lines. Eight compounds were shown to be promising in at least three tumor cell lines. These compounds had their IC50 determined within 72 h and the activity structure ratio was assessed. The effect of the best compounds on PBMC and hemolytic activity assay was then evaluated. The compound 1d was considered the most promising among the samples tested and its influence on cell cycle, DNA fragmentation and mitochondrial depolarization was evaluated. PMID- 29329072 TI - Development of potent and proteolytically stable human neuromedin U receptor agonists. AB - Neuromedin U (NMU) is a highly conserved endogenous peptide that is involved in a wide range of physiological processes such as regulation of feeding behavior, the stress response and nociception. The major limitation to use NMU as a therapeutic is its short half-life. Here, we describe the development of a set of novel NMU analogs based on NMU-8, by introducing unnatural amino acids into the native sequence. This approach shows that it is possible to generate molecules with increased potency and improved plasma stability without major changes of the peptidic nature or the introduction of large conjugates. When compared to the native NMU-8 peptide, compounds 16, 18 and 20 have potent agonist activity and affinity for both NMU receptors. Selectivity towards NMUR1 was observed when the Phe residue in position 4 was modified, whereas higher potencies at NMUR2 were found when substitutions of the Pro residue in position 6 were executed. To study the effect of the modifications on the proteolytic stability of the molecules, an in vitro stability assay in human plasma at 37 degrees C was performed. All analyzed analogs possessed an increased resistance against enzymatic degradation in human plasma resulting in half-lifes from 4 min for NMU-8, up to more than 23 h for compound 42. PMID- 29329073 TI - Nanobiostructure of fibrous-like alumina functionalized with an analog of the BP100 peptide: Synthesis, characterization and biological applications. AB - The functionalization of alumina nanoparticles of specific morphology with antimicrobial peptides (AMP) can be a promising strategy for modeling medical devices and packaging materials for cosmetics, medicines or food, since the contamination by pathogens could be reduced. In this paper, we show the synthesis of a fibrous-like alumina nanobiostructure, as well as its functionalization with the peptide EAAA-BP100, an analog of the antimicrobial peptide BP100. The antibacterial activity of the obtained material against some bacterial strains is also investigated. The covalent binding of the peptide to the nanoparticles was promoted by a reaction between the carboxyl group of the glutamate side chain (E1) of the peptide and the amino groups of the alumina nanoparticles, previously modified by reaction with 3-aminopropyltrietoxysilane (APTES). The functionalized nanoparticles were characterized by zeta potential measurements, Fourier transform infrared spectroscopy, and other physicochemical techniques. Although the obtained alumina nanobiostructure shows a relatively low degree of substitution with EAAA-BP100, antibacterial activities against Escherichia coli and Salmonella typhimurium strains are appreciably higher than the activities of the free peptide. The obtained results can affect the design of new hybrid nanobiomaterials based on nanoparticles functionalized with AMP. PMID- 29329074 TI - Goat tendon collagen-human fibrin hydrogel for comprehensive parametric evaluation of HUVEC microtissue-based angiogenesis. AB - The cell and extracellular matrix (ECM) interactions play a very important role during angiogenesis. Remodeling of the extracellular matrix along with pro angiogenic/anti-angiogenic factors, and matrix-degrading proteases, accounts for endothelial cell growth, migration, and tube formation. However, for studying angiogenesis, only limited and expensive biomaterials are available. Despite being biocompatible, inexpensive, and easy availability; the potential of goat tendon collagen (GTC) has never been explored for vascular tissue engineering applications. Hence, the current investigation was focused on evaluating GTC as an alternative matrix for HUVEC microtissue-based angiogenesis. HUVEC microtissues (MTs), synthesized via hanging drop method, were subjected to angiogenesis in GTC-human fibrin (HF) hydrogels. Sprouting tip cells originated from the MTs within 24 h. Further, comprehensive in vitro study and in vivo validation revealed that, endothelial media with FBS and growth factors, 24 h old HUVEC MTs of 500 cells, seeded at 200 aggregates/cm3 in GTC-HF gel of 100 Pa elastic modulus, resulted in most optimal angiogenesis with intact lumen that was stable up to a week, without any supporting cells. Although early to predict, GTC HF matrix may serve as a potential ECM for engineering complex and functional tissues of clinical relevance. PMID- 29329075 TI - Anticoagulant polyurethane substrates modified with poly(2-methacryloyloxyethyl phosphorylcholine) via SI-RATRP. AB - A novel catalyst system of Reverse Atom Transfer Radical Polymerization (RATRP) to prepare Polyurethane (PU) films modified by poly(2-methacryloyloxyethyl phosphorylcholine) (pMPC) was studied in this article. In this system, PU film was pretreated by LaCl3/CA ethanol solution to obtain a hydrated surface allowing more initiators to be immobilized on it. Moreover, complexes composed of silane coupling agent 3-chloropropyltrimethoxysilane (CPTM), chlorhexidine acetate (CA) and lanthanum(III) worked as ligands of copper ions as a whole during RATRP process. PU films before and after modification were characterized by X-ray photoelectron spectroscopy (XPS) and static contact angle (SCA) to confirm that pMPC chains were successfully grafted from the substrates. Results of Plasma recalcification time assay, platelet adhesion test indicated excellent blood compatibility. Furthermore, the antibacterial activity of the material have been improved which proved by adhesion test of E.coil. PMID- 29329077 TI - Nano hydroxyapatite-blasted titanium surface creates a biointerface able to govern Src-dependent osteoblast metabolism as prerequisite to ECM remodeling. AB - Over the last several years, we have focused on the importance of intracellular signaling pathways in dynamically governing the biointerface between pre osteoblast and surface of biomaterial. Thus, this study investigates the molecular hallmarks involved in the pre-osteoblast relationship with different topography considering Machined (Mc), Dual Acid-Etching (DAE), and nano hydroxyapatite-blasted (nHA) groups. There was substantial differences in topography of titanium surface, considering Atomic Force Microscopy and water contact angle (Mc = 81.41 +/- 0.01; DAE = 97.18 +/- 0.01; nHA = 40.95 +/- 0.02). Later, to investigate their topography differences on biological responses, pre osteoblast was seeded on the different surfaces and biological samples were collected after 24 h (to consider adhesion signaling) and 10 days (to consider differentiation signaling). Preliminary results evidenced significant differences in morphological changes of pre-osteoblasts mainly resulting from the interaction with the DAE and nHA, distinguishing cellular adaptation. These results pushed us to analyze activation of specific genes by exploring qPCR technology. In sequence, we showed that Src performs crucial roles during cell adhesion and later differentiation of the pre-osteoblast in relationship with titanium-based biomaterials, as our results confirmed strong feedback of the Src activity on the integrin-based pathway, because integrin-beta1 (~5-fold changes), FAK (~12-fold changes), and Src (~3.5-fold changes) were significantly up-expressed when Src was chemically inhibited by PP1 (5 MUM). Moreover, ECM-related genes were rigorously reprogrammed in response to the different surfaces, resulting on Matrix Metalloproteinase (MMP) activities concomitant to a significant decrease of MMP inhibitors. In parallel, we showed PP1-based Src inhibition promotes a significant increase of MMP activity. Taking all our results into account, we showed for the first time nano hydroxyapatite-blasted titanium surface creates a biointerface able to govern Src-dependent osteoblast metabolism as pre-requisite to ECM remodeling. PMID- 29329076 TI - Attachment of nanoparticulate drug-release systems on poly(epsilon-caprolactone) nanofibers via a graftpolymer as interlayer. AB - Electrospun poly(epsilon-caprolactone) (PCL) fiber mats are modified using a chitosan grafted with PCL (CS-g-PCL), to improve the biological performance and to enable further modifications. The graft copolymer is immobilized by the crystallization of the PCL grafts on the PCL fiber surface as binding mechanism. In this way, the surface of the fibers is covered with chitosan bearing cationic amino groups, which allow adsorption of oppositely charged nanoparticulate drug delivery systems. The modification of the fiber mats and the attachment of the drug delivery systems are easy and scalable dip processes. The process is also versatile; it is possible to attach different polymeric and inorganic nanoparticulate drug-release systems of cationic or anionic nature. The modifications are verified using scanning electron microscopy (SEM) and confocal laser scanning microscopy (CLSM). As proof of principle, the release of ciprofloxacin from silica nanoparticles attached to the modified fiber mats is shown; however, the method is also suited for other biologically active substances including growth factors. The initial cellular attachment and proliferation as well as vitality of the cells is improved by the modification with CS-g-PCL and is further influenced by the type of the drug delivery system attached. Hence, this method can be used to transfer PCL fiber mats into bioactive implants for in-situ tissue engineering applications. PMID- 29329078 TI - Schmallenberg virus non-structural protein NSm: Intracellular distribution and role of non-hydrophobic domains. AB - Schmallenberg virus (SBV) induces fetal malformation, abortions and stillbirth in ruminants. While the non-structural protein NSs is a major virulence factor, the biological function of NSm, the second non-structural protein which consists of three hydrophobic transmembrane (I, III, V) and two non-hydrophobic regions (II, IV), is still unknown. Here, a series of NSm mutants displaying deletions of nearly the entire NSm or of the non-hydrophobic domains was generated and the intracellular distribution of NSm was assessed. SBV-NSm is dispensable for the generation of infectious virus and mutants lacking domains II - V showed growth properties similar to the wild-type virus. In addition, a comparable intracellular distribution of SBV-NSm was observed in mammalian cells infected with domain II mutants or wild-type virus. In both cases, NSm co-localized with the glycoprotein Gc in the Golgi compartment. However, domain IV-deletion mutants showed an altered distribution pattern and no co-localization of NSm and Gc. PMID- 29329080 TI - Intrauterine inflammatory activation, functional progesterone withdrawal, and the timing of term and preterm birth. AB - The central role of inflammatory processes in labour and delivery is now well recognised. However, the biomolecular, immunological and endocrine mechanisms involved in the labour process, and the clinical manifestations of inflammation in pregnancy, are complex, variable and modulated by factors such as aetiology, ethnicity and gestational age. In this review, evidence is presented of the pivotal relationship between progesterone and inflammation in pregnancy in terms of determining the timing of labour and delivery. The maternal inflammatory burden increases with advancing gestational age in response to endocrine, maturational, physical, metabolic and biochemical drivers, leading to functional progesterone withdrawal necessary for labour and delivery. Variability in the nature, timing and magnitude of these drivers influence the timing of delivery and the likelihood of preterm birth. Pathological inflammatory insults in pregnancy, such as infection, oxidative stress, senescence and maternal allograft rejection, can precipitate preterm birth, often involving common signalling pathways. Intrauterine infection is an important cause of early preterm birth, associated with delivery of the infants at greatest risk of death and disability; however, most preterm deliveries with intrauterine inflammatory activation are not infection-associated. This observation has important diagnostic and therapeutic implications and challenges. The key differences and similarities between infection-associated and sterile inflammation in this context are highlighted, and the clinical implications and significance of these processes and how they might be exploited are discussed. PMID- 29329081 TI - Presence of Fe-Al binary oxide adsorbent cake layer in ceramic membrane filtration and their impact for removal of HA and BSA. AB - To enhance the removal of natural organic matter (NOM) in ceramic (Ce) membrane filtration, an iron-aluminum binary oxide (FAO) was applied to the ceramic membrane surface as the adsorbent cake layer, and it was compared with heated aluminum oxide (HAO) for the evaluation of the control of NOM. Both the HAO and FAO adsorbent cake layers efficiently removed the NOM regardless of NOM's hydrophobic/hydrophilic characteristics, and the dissolved organic carbon (DOC) removal in NOM for FAO was 1-1.12 times greater than that for HAO, which means FAO was more efficient in the removal of DOC in NOM. FAO (0.03 MUm), which is smaller in size than HAO (0.4 MUm), had greater flux reduction than HAO. The flux reduction increased as the filtration proceeded because most of the organic foulants (colloid/particles and soluble NOM) were captured by the adsorbent cake layer, which caused fouling between the membrane surface and the adsorbent cake layer. However, no chemically irreversible fouling was observed on the Ce membrane at the end of the FAO adsorbent cake layer filtration. This means that a stable adsorbent cake layer by FAO formed on the Ce membrane, and that the reduced pure water flux of the Ce membrane, resulting from the NOM fouling, can easily be recovered through physicochemical cleaning. PMID- 29329079 TI - The interactome of EBV LMP1 evaluated by proximity-based BioID approach. AB - Epstein-Barr virus LMP1 is an oncoprotein required for immortalizing B lymphocytes and also plays important roles in transforming non-lymphoid tissue. The discovery of LMP1 protein interactions will likely generate targets to treat EBV-associated cancers. Here, we define the broader LMP1 interactome using the recently developed BioID method. Combined with mass spectrometry, we identified over 1000 proteins across seven independent experiments with direct or indirect relationships to LMP1. Pathway analysis suggests that a significant number of the proteins identified are involved in signal transduction and protein or vesicle trafficking. Interestingly, a large number of proteins thought to be important in the formation of exosomes and protein targeting were recognized as probable LMP1 interacting partners, including CD63, syntenin-1, ALIX, TSG101, HRS, CHMPs, and sorting nexins. Therefore, it is likely that LMP1 modifies protein trafficking and exosome biogenesis pathways. In support of this, knock-down of syntenin-1 and ALIX resulted in reduced exosomal LMP1. PMID- 29329082 TI - The domestic fowl (Gallus gallus domesticus) embryo as an alternative for mammalian experiments - Validation of a test method for the detection of endocrine disrupting chemicals. AB - In recent decades the embryo of Gallus g. domesticus has been widely used as a model for the study of early sexual development and the potential impact of substances affecting development, including endocrine disrupting chemicals (EDCs). Since there is no standardized procedure available for experiments with the chicken embryo, the objective of our project is to expedite the protocol to assess the potential effects of EDCs on early sexual differentiation. The main aim of the present study was to systematically investigate the natural variability of individual developmental and histological key parameters in untreated and solvent-treated control groups, since this has been insufficiently addressed so far. A further aim was to provide robust values for all parameters investigated in control and substance experiments, using two known estrogenic compounds, bisphenol A (75/150/300 MUg/g egg) and 17alpha-ethinylestradiol (20 ng/g egg). On embryonic day 1 eggs were injected with the estrogenic compounds. On embryonic day 19 histological gonadal data as well as morphological parameters were noted. In baseline experiments with control groups the selected endpoints showed reproducible results with low variabilities. Furthermore, gonadal endpoints responded sensitively to the treatment with the two model EDCs. Thus, these endpoints are recommended for the assessment of suspected EDCs in which the values provided for all parameters can serve as validity criteria in future experiments. The embryo of G. domesticus has shown to be a suitable alternative to currently accepted mammalian bioassays for the impact assessment of EDCs on reproductive tissues. PMID- 29329083 TI - A label-free electrochemical system for comprehensive monitoring of o chlorophenol. AB - o-Chlorophenol (OCP) is a priority pollutant that poses serious health threats to the public. The following study designs a simple electrochemical system to monitor the concentration and toxicity of OCP. This system was primarily characterized by the integration of both physicochemical and biological monitoring procedures that had a synergistic effect between the functionalized carbon nanotubes and rhodamine B. This resulted in excellent electrocatalytic activities toward OCP and cellular purine bases. The peak current of OCP was linear with concentrations ranging from 0.05-125.0 MUM and the detection limit was 0.028 MUM under optimal testing conditions. There was an enhanced voltammetric signal detected that was caused by the guanine/xanthine of human hepatoma (HepG2) cells. The cytotoxicity of OCP to HepG2 cells was assessed using the proposed system. The obtained IC50 value was 512.86 MUM. This study provided a fast, label-free, and low-cost platform for the comprehensive assessment of OCP. This is highly beneficial for simplifying the environmental monitoring process. PMID- 29329085 TI - An integrated approach to assess the impacts of zinc pyrithione at different levels of biological organization in marine mussels. AB - The mechanisms of sublethal toxicity of the antifouling biocide, zinc pyrithione (ZnPT), have not been well-studied. This investigation demonstrates that 14-d sublethal exposure to ZnPT (0.2 or 2 MUM, alongside inorganic Zn and sea water controls) is genotoxic to mussel haemocytes but suggests that this is not caused by oxidative DNA damage as no significant induction of oxidised purines was detected by Fpg-modified comet assay. More ecologically relevant endpoints, including decreased clearance rate (CR), cessation of attachment and decreased tolerance of stress on stress (SoS), also showed significant response to ZnPT exposure. Our integrated approach was underpinned by molecular analyses (qRT-PCR of stress-related genes, 2D gel electrophoresis of proteins) that indicated ZnPT causes a decrease in phosphoenolpyruvate carboxykinase (PEPCK) expression in mussel digestive glands, and that metallothionein genes are upregulated; PEPCK downregulation suggests that altered energy metabolism may also be related to the effects of ZnPT. Significant relationships were found between % tail DNA (comet assay) and all higher level responses (CR, attachment, SoS) in addition to PEPCK expression. Principal component analyses suggested that expression of selected genes described more variability within groups whereas % tail DNA reflected different ZnPT concentrations. PMID- 29329084 TI - Sources of polychlorinated dibenzo-p-dioxins and dibenzofurans, and biphenyls in Chinese mitten crabs. AB - Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in Chinese mitten crabs from several areas were determined. The toxic equivalents (TEQs) for the mean PCDD/F and total PCDD/F and dioxin-like PCBs were 2.9 +/- 2.7 and 5.7 +/- 4.0 pg TEQ g-1, respectively. The mean concentrations of PCBs and dl-PCBs were 282 and 59 times the concentrations of PCDD/Fs, respectively. PCDD/F and PCB sources in the crab food web were assessed. The total TEQ of PCDD/F and PCB supplied by crab compound feed was 2.1 times the TEQ in crab meat. Broken corn, aquatic biota, and water contributed around 12% of the total TEQ inputs for crab meat. The contribution from sediment was around 164 times that from crab meat, and sediment may be the most important source of PCDD/Fs and PCBs in cultured crabs. Principal component analysis (PCA) and stable isotope ratios for nitrogen (delta15N) and carbon (delta13C) supported the TEQ results. The mean total PCDD/F and dl-PCB TEQ exposure for humans consuming crabs was 3.4 pg TEQ per kilogram of body weight per day. The PCDD/Fs and PCBs in >80% of the crab samples would not cause the tolerable daily intake to be exceeded. PMID- 29329086 TI - Effect of exogenous phosphate on the lability and phytoavailability of arsenic in soils. AB - The effect of exogenous phosphate (P, 200 mg?kg-1 soil) on the lability and phytoavailability of arsenic (As) was studied using the diffusive gradients in thin films (DGT) technique. Lettuce were grown on the As-amended soils following the stabilization of soil labile As after 90 days incubation. Phosphate (P) application generally facilitated plant growth except one grown on P-sufficient soil. Soil labile As concentration increased in all the soils after P application due to a competition effect. Plant As concentration increased in red soils collected from Hunan Province, while decreases were observed in the other soils. Even though, an overall trend of decrease was obtained in As phytoavailability along with the increase of DGT-measured soil labile P/As molar ratio. The functional equation between P/As and As phytoavailability provided a critical value of 1.7, which could be used as a guidance for rational P fertilization, thus avoiding overfertilization. PMID- 29329087 TI - Occurrence of perfluoroalkyl substances (PFAS) in garden produce at homes with a history of PFAS-contaminated drinking water. AB - The decades-long disposal of manufacturing waste containing perfluoroalkyl substances (PFAS) in landfills resulted in contamination of groundwater serving as the drinking water supply for the eastern Twin Cities metropolitan region. While measures were taken to reduce the levels of PFAS in the drinking water, questions remained about possible non-drinking water pathways of exposure in these communities. The Minnesota Department of Health (MDH) investigated whether PFAS in water used for yard and garden irrigation results in elevated concentrations of PFAS in soil and home-grown produce. In 2010, samples of outdoor tap water, garden soil, and garden produce were collected at homes impacted by the contamination and analyzed for several PFAS. Perfluorobutanoic acid (PFBA) was the primary PFAS present in water, followed by perfluoropentanoic acid (PFPeA). Although PFBA, perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) were present in 100% of soil samples at higher concentrations compared to other PFAS, only PFBA was readily translocated to plants. Significant determinants of PFBA concentration in produce were the amount of PFBA applied to the garden via watering and the type of produce tested. Results from this real world study are consistent with experimental findings that short-chain PFAS have the highest potential to translocate to and bioaccumulate in edible plants. These findings are globally relevant, as short-chain PFAS serve as commercial substitutes for longer-chain compounds and are increasingly detected in water due to their relatively high solubility and mobility. PMID- 29329088 TI - Metal sorption to Spodosol Bs horizons: Organic matter complexes predominate. AB - While metal sorption mechanisms have been studied extensively for soil surface horizons, little information exists for subsoils, for example Spodosol Bs horizons. Here the sorption of cadmium(II), copper(II) and lead(II) to seven Bs horizons from five sites was studied. Extended X-ray absorption fine structure (EXAFS) spectroscopy showed that cadmium(II) and lead(II) were bound as inner sphere complexes to organic matter. Addition of o-phosphate (to 1 MUmol l-1) did not result in any significant enhancement of metal sorption, nor did it influence EXAFS speciation. An assemblage model using the SHM and CD-MUSIC models overestimated metal sorption for six out of seven soil samples. To agree with experimental results, substantial decreases (up to 8-fold) had to be made for the fraction 'active organic matter', fHS, while the point-of-zero charge (PZC) of ferrihydrite had to be increased. The largest decreases of fHS were found for the soils with the lowest ratio of pyrophosphate-to oxalate-extractable Al (Alpyp/Alox), suggesting that in these soils, humic and fulvic acids were to a large extent inaccessible for metal sorption. The low reactivity of ferrihydrite towards lead(II) can be explained by potential spillover effects from co-existing allophane, but other factors such as ferrihydrite crystallisation could not be ruled out. In conclusion, organic matter was the predominant sorbent for cadmium(II), copper(II) and lead(II). However, for lead(II) the optimised model suggests additional, but minor, contributions from Fe (hydr)oxide surface complexes. These results will be important to correctly model metal sorption in spodic materials. PMID- 29329089 TI - Neural circuit dysfunction in mouse models of neurodevelopmental disorders. AB - Neuropsychiatric disorders arise from the alteration of normal brain developmental trajectories disrupting the function of specific neuronal circuits. Recent advances in human genetics have greatly accelerated the identification of genes whose variation increases the susceptibility for neurodevelopmental disorders, most notably for autism spectrum disorder (ASD) and schizophrenia. In parallel, experimental studies in animal models-most typically in mice-are beginning to shed light on the role of these genes in the development and function of specific brain circuits. In spite of their limitations, understanding the impact of pathological gene variation in animal models at the level of specific neuronal populations and circuits will likely contribute to orienting human clinical studies in the search for precise disease mechanisms and novel treatments. PMID- 29329090 TI - Simultaneous accelerated solvent extraction and hydrolysis of 11-nor-Delta9 tetrahydrocannabinol-9-carboxylic acid glucuronide in meconium samples for gas chromatography-mass spectrometry analysis. AB - Cannabis misuse during pregnancy is associated with severe impacts on the mother and baby health, such as newborn low birth weight, growth restriction, pre-term birth, neurobehavioral and developmental deficits. In most of the cases, drug abuse is omitted or denied by the mothers. Thus, toxicological analyzes using maternal-fetal matrices takes place as a suitable tool to assess drug use. Herein, meconium was the chosen matrix to evaluate cannabis exposure through identification and quantification of 11-nor-Delta9-tetrahydrocannabinol-9 carboxylic (THCCOOH). Accelerated solvent extraction (ASE) was applied for sample preparation technique to simultaneously extract and hydrolyze conjugated THCCOOH from meconium, followed by a solid-phase extraction (SPE) procedure. The method was developed and validated for gas chromatography-mass spectrometry (GC-MS), reaching hydrolysis efficiency of 98%. Limits of detection (LOD) and quantification (LOQ) were, respectively, 5 and 10 ng/g. The range of linearity was LOQ to 500 ng/g. Inter and intra-batch coefficients of variation were <8.4% for all concentration levels. Accuracy was in 101.7-108.9% range. Recovery was on average 60.3%. Carryover effect was not observed. The procedure was applied in six meconium samples from babies whose mothers were drug users and showed satisfactory performance to confirm fetal cannabis exposure. PMID- 29329091 TI - Determination of IMM-H004 and its active glucuronide metabolite in rat plasma and Ringer's solution by ultra-performance liquid chromatography-tandem mass spectrometry. AB - IMM-H004 is a novel neuroprotective agent and its glucuronide metabolite IMM H004G has similar protective effects against cerebral ischemic injury in vivo and in vitro. A specific and sensitive ultra-performance liquid chromatography-tandem mass spectrometry method was established and validated for determination of IMM H004 and IMM-H004G simultaneously in rat plasma and Ringer's solution. Plasma samples containing IMM-H004, IMM-H004G and internal standard propranolol were prepared by direct protein precipitation in a sample-to-solvent ratio of 1:2:6 (plasma: water: acetonitrile), whereas no protein precipitation was required for Ringer's solution samples. Separation was performed with a gradient mobile phase of methanol/water with 0.5% formic acid (v/v) on Eclipse Plus C18 column (2.1*50mm, 3.5MUm) at a flow rate of 0.3mL/min. The detection was operated on a triple quadrupole mass spectrometer in positive ion multiple reaction monitoring (MRM) mode. The monitored transitions were 305.1->248.1 for IMM-H004, 481.3 >305.1 for IMM-H004G and 260.1->183.1 for propranolol. The linear ranges of IMM H004 and IMM-H004G were 5 to 3000ng/mL and 10 to 3000ng/mL for plasma method and 0.5 to 500ng/mL for Ringer's solution method. All the intra-day and inter-day precision and accuracy for the two analytes in rat plasma were below 7.5% and the intra-day precision and accuracy for analytes in Ringer's solution were within +/ 14.7%. There was no obvious matrix effect and the recoveries of the analytes were higher than 94.2%. IMM-H004 and IMM-H004G were stable during one analytic process. The established method was applied successfully to plasma pharmacokinetic and brain microdialysis studies of IMM-H004 and IMM-H004G in rats after a single intravenous administration of IMM-H004. PMID- 29329092 TI - Effect of aspirin on the pharmacokinetics and absorption of panax notoginseng saponins. AB - BACKGROUND: Panax notoginseng saponins, a traditional Chinese medicine extraction, and aspirin are both widely used to treat cerebral infarction in China. Good results in clinical practice have been achieved, when Panax notoginseng saponins was taken together with aspirin. METHODS: To investigate the interaction of the two drugs in vivo, the concentration of notoginsenoside R1, ginsenoside Rg1, Rb1, Re and Rd. in blood were simultaneously measured by UPLC/MS/MS. Sample preparation was carried out by the protein precipitation technique with an internal standard saikosaponin A standard. The separation of six components was achieved by using an ACQUITY UPLC (r)BEH C18 column (1.7MUm 2.1*100mm) by gradient elution using water (containing 0.2% formic acid) and acetonitrile (containing 0.2% formic acid) as the mobile phase at a flow rate of 0.2mL/min. The pharmacokinetic parameters were determined using non-compartmental analysis. The transport of notoginsenoside R1, ginsenoside Rg1, Rb1, Re and Rd. in MDCK -MDR1 cell monolayer was also used to verify the conclusion of pharmacokinetic drug-drug interaction and study the mechanism of drug interaction. RESULTS: The concentrations of the five components increased in a certain extent when the two drugs administered together in rats. The values of apparent permeability coefficients were significantly increased when the two drugs were used together. Aspirin and salicylic acid could destroy the tight junction protein and open the intercellular space to increase the absorption of Panax notoginseng saponins. CONCLUSION: Pharmacokinetic drug-drug interaction in vivo existed between Panax notoginseng saponins and aspirin. The drug-drug interaction mainly occurred in the process of absorption. PMID- 29329093 TI - Size exclusion chromatography (SEC-HPLC) as an alternative to study thrombin inhibition. AB - In vitro analysis of anticoagulant compounds with a potential use as antithrombotic drugs, has been traditionally performed using techniques like spectrophotometry, turbidimetry, as well as electrochemical and clinical assays. Although, these techniques have some disadvantages such as: the inability to measure the total biological activity of thrombin, interferences and, sometimes, the quantitative determination of the inhibition ratio is not accurate. In the present work, the conversion of fibrinogen to fibrin was monitored by molecular exclusion chromatography (SEC-HPLC) in three different reaction systems. An inhibition percentage of 43.19+/-2.02% was obtained using heparin as an anticoagulant, in addition to the determination of the percentage of heparin bonded to thrombin. This methodology has not been previously described and has high potential for the determination of anticoagulant capacity with higher precision, the determination of thrombin's total biological activity and the quantitative determination of the inhibition ratio. PMID- 29329094 TI - Hydrophilic interaction liquid chromatography in the speciation analysis of selenium. AB - The hydrophilic interaction liquid chromatography (HILIC) coupled to mass spectrometry was employed to study retention behavior of selected selenium compounds using two different HILIC stationary phases: silica and zwitterionic. Two organic solvents - acetonitrile and methanol - were compared as a component of mobile phase. Separation parameters such as a content of organic modifier, the eluent pH and inorganic buffer concentration were investigated. Based on all observations, methanol seems to be beneficial for the separation of studied compounds. The optimal HILIC separation method involved silica column and eluent composed of 85% MeOH and CH3COONH4 (8 mM, pH 7) was compared to RP method in terms of time of the single run, the separation efficiency and limit of detection. PMID- 29329095 TI - Investigation of silver (Ag) deposition in tissues from stranded cetaceans by autometallography (AMG). AB - Silver, such as silver nanoparticles (AgNPs), has been widely used in commercial products and may be released into the environment. The interaction between Ag deposition and biological systems is raising serious concerns because of one health consideration. Cetaceans, as the top predators of the oceans, may be exposed to Ag/Ag compounds and suffer negative health impacts from the deposition of these compounds in their bodies. In the present study, we utilized autometallography (AMG) to localize the Ag in the liver and kidney tissues of cetaceans and developed a model called the cetacean histological Ag assay (CHAA) to estimate the Ag concentrations in the liver and kidney tissues of cetaceans. Our results revealed that Ag was mainly located in hepatocytes, Kupffer cells and the epithelial cells of some proximal renal tubules. The tissue pattern of Ag/Ag compounds deposition in cetaceans was different from those in previous studies conducted on laboratory rats. This difference may suggest that cetaceans have a different metabolic profile of Ag, so a presumptive metabolic pathway of Ag in cetaceans is advanced. Furthermore, our results suggest that the Ag contamination in cetaceans living in the North-western Pacific Ocean is more severe than that in cetaceans living in other marine regions of the world. The level of Ag deposition in cetaceans living in the former area may have caused negative impacts on their health condition. Further investigations are warranted to study the systemic Ag distribution, the cause of death/stranding, and the infectious diseases in stranded cetaceans with different Ag concentrations for comprehensively evaluating the negative health effects caused by Ag in cetaceans. PMID- 29329096 TI - Water contamination by endocrine disruptors: Impacts, microbiological aspects and trends for environmental protection. AB - Hormone active agents constitute a dangerous class of pollutants. Among them, those agents that mimic the action of estrogens on target cells and are part of the group of endocrine-disruptor compounds (EDCs) are termed estrogenic EDCs, the main focus of this review. Exposure to these compounds causes a number of negative effects, including breast cancer, infertility and animal hermaphroditism. However, especially in underdeveloped countries, limited efforts have been made to warn people about this serious issue, explain the methods of minimizing exposure, and develop feasible and efficient mitigation strategies at different levels and in various environments. For instance, the use of bioremediation processes capable of transforming EDCs into environmentally friendly compounds has been little explored. A wide diversity of estrogen degrading microorganisms could be used to develop such technologies, which include bioremediation processes for EDCs that could be implemented in biological filters for the post-treatment of wastewater effluent. This review describes problems associated with EDCs, primarily estrogenic EDCs, including exposure as well as the present status of understanding and the effects of natural and synthetic hormones and estrogenic EDCs on living organisms. We also describe potential biotechnological strategies for EDC biodegradation, and suggest novel treatment approaches for minimizing the persistence of EDCs in the environment. PMID- 29329097 TI - Sources and transformation pathways for dichlorodiphenyltrichloroethane (DDT) and metabolites in soils from Northwest Fujian, China. AB - Dicofol (2,2,2-trichloro-1,1-bis-(p-chlorophenyl)ethanol) found in the environment is not only a miticide originated from commercial use, but also a metabolite of dichlorodiphenyltrichloroethane (DDT), which is often overlooked. To verify the sources and transformation pathways of DDT and related metabolites in soils, we measured p,p'-(dicofol + DBP) (sum of p,p'-dicofol and 4,4' dichlorobenzophenone), DDT and six metabolites in soils from Northwest Fujian, China. The ratios of 1,1,1-trichloro-2-(o-chlorophenyl)-2-(p-chlorophenyl)ethane (o,p'-DDT)/1,1,1-trichloro-2,2-bis-(p-chlorophenyl)ethane (p,p'-DDT) and the mass balance demonstrated that p,p'-(dicofol + DBP) predominantly originated from p,p' DDT transformation rather than from actual dicofol application. p,p'-(dicofol + DBP) accounted for 45.0% as the primary metabolites of DDT in this study, more than 1,1-dichloro-2,2-bis-(p-chlorophenyl)ethylene (p,p'-DDE) and 1,1-dichloro 2,2-bis-(p-chlorophenyl)ethane (p,p'-DDD), which might lead to large overestimations of the fresh DDT input by using the traditional ratio of (?2DDD + ?2DDE)/?2DDT (with all o,p'- and p,p'- isomers included). In paddy fields where the conditions alternate between aerobic (dry period) and anaerobic (wet period), both p,p'-DDD and p,p'-DDE were likely to degrade to 1-chloro-2,2-bis-(p chlorophenyl)ethylene (p,p'-DDMU), which further transformed to 2,2-bis(p chlorophenyl)ethylene (p,p'-DDNU). Degradation of p,p'-DDMU to p,p'-DDNU mainly occurred in waterlogged paddy soils. However, p,p'-DDNU might not transform to other higher-order metabolites in aerobic surface soils. Overall, our study confirmed p,p'-(dicofol + DBP) as metabolites of p,p'-DDT, suggested DDE and DDD were parallel precursors of DDMU, and further verified the transformation pathways of DDT in surface soils. PMID- 29329098 TI - Effect of organic amendments on cadmium stress to pea: A multivariate comparison of germinating vs young seedlings and younger vs older leaves. AB - Despite significant recent advancement in research, biogeochemical behavior of heavy metals with respect to their applied form is still topical. Moreover, metal toxicity to plants may vary with their stage of development/maturity. Therefore, this study for the first time evaluated the influence of ethylenediaminetetraacetic acid (EDTA) and citric acid (CA) on cadmium (Cd) accumulation and toxicity to germinating and young pea seedlings as well as in younger and older leaves. The experimental setup of current study consisted of two separate studies. The first study was performed on germinating seedlings grown in a Cd-contaminated sand media. Pea seeds were treated with two levels of Cd (Cd-25 and Cd-100) alone and combined with different levels of EDTA and CA. The second study was carried out in hydroponic solution. The influence of organic amendments on Cd accumulation and toxicity to pea plants was evaluated by determining Cd contents in pea seedlings, H2O2 contents, chlorophyll contents and lipid peroxidation in younger and older leaves. Cadmium stress caused overproduction of H2O2 in roots and leaves of pea seedlings. Cadmium-induced overproduction of H2O2 caused a decrease in the pigment contents and increased lipid peroxidation. Application of EDTA at higher levels (81 and 200uM) increased Cd accumulation by pea plants. However, CA did not affect Cd accumulation by pea. Both EDTA and CA increased Cd-induced H2O2 production and lipid peroxidation. Younger pea leaves showed more sensitivity to Cd stress compared to older leaves. Similarly, Cd toxicity was more pronounced in germinating seedlings than young seedlings. Moreover, Pearson correlation and principal component analysis (PCA) showed very interesting correlations between treatments and stress responses of germination and young seedlings as well as younger and older leaves. Based on multivariate analysis, it is proposed that the Cd toxicity to pea plants greatly vary with its growth stage and the maturity of organs (younger or older leaves). PMID- 29329099 TI - Accumulation patterns and risk assessment of metals and metalloid in muscle and offal of free-range chickens, cattle and goat in Benin City, Nigeria. AB - The use of free range animals for monitoring environmental health offers opportunities to detect exposure and assess the toxicological effects of pollutants in terrestrial ecosystems. Potential human health risk of dietary intake of metals and metalloid via consumption of offal and muscle of free range chicken, cattle and goats by the urban population in Benin City was evaluated. Muscle, gizzard, liver and kidney samples were analyzed for Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, and Pb concentrations using inductively coupled plasma mass spectrometer (ICP-MS) while Hg was determined using Hg analyzer. Mean concentrations of metals (mg/kg ww) varied significantly depending upon the tissues and animal species. Human health risk estimations for children and adults showed estimated daily intake (EDI) values of tissues below oral reference dose (RfD) threshold for non essential metals Cd, As, Pb and Hg thus strongly indicating no possible health risk via consumption of animal based food. Calculated Hazard quotient (THQ) was less than 1 (< 1) for all the metals analyzed for both adult and children. However, Cd and As had the highest value of THQ suggestive of possible health risk associated with continuous consumption of Cd and As contaminated animal based foods. Hazard Index (HI) for additive effect of metals was higher in chicken liver and gizzard for children and chicken liver for adults. Thus, HI indicated that chicken liver and gizzard may contribute significantly to adult and children dietary exposure to heavy metals. Principal component analysis (PCA) showed a clear species difference in metal accumulation between chickens and the ruminants. This study provides baseline data for future studies and also valuable evidence of anthropogenic impacts necessary to initiate national and international policies for control of heavy metal and metalloid content in food items. PMID- 29329100 TI - A Web-Based System for Bayesian Benchmark Dose Estimation. AB - BACKGROUND: Benchmark dose (BMD) modeling is an important step in human health risk assessment and is used as the default approach to identify the point of departure for risk assessment. A probabilistic framework for dose-response assessment has been proposed and advocated by various institutions and organizations; therefore, a reliable tool is needed to provide distributional estimates for BMD and other important quantities in dose-response assessment. OBJECTIVES: We developed an online system for Bayesian BMD (BBMD) estimation and compared results from this software with U.S. Environmental Protection Agency's (EPA's) Benchmark Dose Software (BMDS). METHODS: The system is built on a Bayesian framework featuring the application of Markov chain Monte Carlo (MCMC) sampling for model parameter estimation and BMD calculation, which makes the BBMD system fundamentally different from the currently prevailing BMD software packages. In addition to estimating the traditional BMDs for dichotomous and continuous data, the developed system is also capable of computing model-averaged BMD estimates. RESULTS: A total of 518 dichotomous and 108 continuous data sets extracted from the U.S. EPA's Integrated Risk Information System (IRIS) database (and similar databases) were used as testing data to compare the estimates from the BBMD and BMDS programs. The results suggest that the BBMD system may outperform the BMDS program in a number of aspects, including fewer failed BMD and BMDL calculations and estimates. CONCLUSIONS: The BBMD system is a useful alternative tool for estimating BMD with additional functionalities for BMD analysis based on most recent research. Most importantly, the BBMD has the potential to incorporate prior information to make dose-response modeling more reliable and can provide distributional estimates for important quantities in dose-response assessment, which greatly facilitates the current trend for probabilistic risk assessment. https://doi.org/10.1289/EHP1289. PMID- 29329101 TI - Spatial Variation of Endotoxin Concentrations Measured in Ambient PM10 in a Livestock-Dense Area: Implementation of a Land-Use Regression Approach. AB - BACKGROUND: Results from studies on residential health effects of livestock farming are inconsistent, potentially due to simple exposure proxies used (e.g., livestock density). Accuracy of these proxies compared with measured exposure concentrations is unknown. OBJECTIVES: We aimed to assess spatial variation of endotoxin in PM10 (particulate matter <=10MUm) at residential level in a livestock-dense area, compare simple livestock exposure proxies to measured endotoxin concentrations, and evaluate whether land-use regression (LUR) can be used to explain spatial variation of endotoxin. METHODS: The study area (3,000 km2) was located in Netherlands. Ambient PM10 was collected at 61 residential sites representing a variety of surrounding livestock-related characteristics. Three to four 2-wk averaged samples were collected at each site. A local reference site was used for temporal variation adjustment. Samples were analyzed for PM10 mass by weighing and for endotoxin by using the limulus amebocyte lysate assay. Three LUR models were developed, first a model based on general livestock related GIS predictors only, followed by models that also considered species specific predictors and farm type-specific predictors. RESULTS: Variation in concentrations measured between sites was substantial for endotoxin and more limited for PM10 (coefficient of variation: 43%, 8%, respectively); spatial patterns differed considerably. Simple exposure proxies were associated with endotoxin concentrations although spatial variation explained was modest (R2<26%). LUR models using a combination of animal-specific livestock-related characteristics performed markedly better, with up to 64% explained spatial variation. CONCLUSION: The considerable spatial variation of ambient endotoxin concentrations measured in a livestock-dense area can largely be explained by LUR modeling based on livestock-related characteristics. Application of endotoxin LUR models seems promising for residential exposure estimation within health studies. https://doi.org/10.1289/EHP2252. PMID- 29329103 TI - Analysis of anti-ganglioside antibodies by a line immunoassay in patients with chronic-inflammatory demyelinating polyneuropathies (CIDP). AB - BACKGROUND: Unlike for acute immune-mediated neuropathies (IN), anti-ganglioside autoantibody (aGAAb) testing has been recommended for only a minority of chronic IN yet. Thus, we used a multiplex semi-quantitative line immunoassay (LIA) to search for aGAAb in chronic-inflammatory demyelinating polyneuropathy (CIDP) and its clinical variants. METHODS: Anti-GAAb to 11 gangliosides and sulfatide (SF) were investigated by LIA in 61 patients with IN (27 typical CIDP, 12 distal acquired demyelinating polyneuropathy, 6 multifocal-acquired demyelinating sensory/motor polyneuropathy, 10 sensory CIDP, 1 focal CIDP and 5 multifocal motoric neuropathy), 40 with other neuromuscular disorders (OND) (15 non-immune polyneuropathies, 25 myasthenia gravis), 29 with multiple sclerosis (MS) and 54 healthy controls (HC). RESULTS: In contrast to IgG, positive anti-GAAB IgM against at least one ganglioside/SF was found in 17/61 (27.9%) IN compared to 2/40 (5%) in OND, 2/29 MS (6.9%) and 4/54 (7.4%) in HC (p=0.001). There was a statistically higher prevalence of anti-sulfatide (aSF) IgM in IN compared to OND (p=0.008). Further, aGM1 IgM was more prevalent in IN compared to OND and HC (p=0.009) as well as GD1b in IN compared to HC (p<0.04). The prevalence of aGM1 IgM in CIDP was lower compared to in multifocal motor neuropathy (MMN) (12% vs. 60%, p=0.027). Patients showing aSF, aGM1 and aGM2 IgM were younger compared to aGAAb negatives (p<0.05). Patients with aSF IgM positivity presented more frequently typical CIDP and MMN phenotypes (p<0.05, respectively). CONCLUSIONS: The aGAAb LIA revealed an elevated frequency of at least one aGAAb IgM in CIDP/MMN patients. Anti-SF, aGM1 and aGM2 IgM were associated with younger age and anti-SF with IN phenotypes. PMID- 29329104 TI - Contraception usage among young adult men of a Nigerian university. AB - Background Family planning services recognize reproductive health as the joint responsibility of both men and women. Efforts need to be shifted to men's own sexual health in order to achieve the Millennium Development Goals (MDGs) for reduction of maternal mortality and HIV transmission. Aims To determine the methods of contraception used by young adult men and factors that influence their choice of contraceptive. Methodology A cross-sectional descriptive study was done using structured questionnaires to extract relevant information from consented young male adult between ages of 16 and 24 years of Ladoke Akintola University of Technology (LAUTECH), Ogbomoso, Nigeria. Data was coded using Microsoft Excel and was analyzed using the SPSS version 17. Results The majority of the respondents 212 (71.6%) had had sexual intercourse. Mean age at first sexual debut was 17.8 +/- 2.5 years. The majority of the respondents 124 (58.5%) did not use any contraceptives during their first sexual experience and over 1/5th (21.2%) of respondents had impregnated a partner in the past with the majority, 39 (86.7%) of such pregnancies resulting in an induced abortion. Frequency of religious services attendance showed a statistically significant difference with respondents that were sexually active or had previous sex (p < 0.001). Conclusion Male involvement and education about contraceptive methods, use and consistency of contraception could have a drastic reduction in unwanted pregnancies and also a reduction in abortion complications. PMID- 29329102 TI - Arsenic Exposure from Drinking Water and Urinary Metabolomics: Associations and Long-Term Reproducibility in Bangladesh Adults. AB - BACKGROUND: Chronic exposure to inorganic arsenic from drinking water has been associated with a host of cancer and noncancer diseases. The application of metabolomics in epidemiologic studies may allow researchers to identify biomarkers associated with arsenic exposure and its health effects. OBJECTIVE: Our goal was to evaluate the long-term reproducibility of urinary metabolites and associations between reproducible metabolites and arsenic exposure. METHODS: We studied samples and data from 112 nonsmoking participants (58 men and 54 women) who were free of any major chronic diseases and who were enrolled in the Health Effects of Arsenic Longitudinal Study (HEALS), a large prospective cohort study in Bangladesh. Using a global gas chromatography-mass spectrometry platform, we measured metabolites in their urine samples, which were collected at baseline and again 2 y apart, and estimated intraclass correlation coefficients (ICCs). Linear regression was used to assess the association between arsenic exposure at baseline and metabolite levels in baseline urine samples. RESULTS: We identified 2,519 molecular features that were present in all 224 urine samples from the 112 participants, of which 301 had an ICC of >=0.60. Of the 301 molecular features, water arsenic was significantly related to 31 molecular features and urinary arsenic was significantly related to 74 molecular features after adjusting for multiple comparisons. Six metabolites with a confirmed identity were identified from the 82 molecular features that were significantly associated with either water arsenic or urinary arsenic after adjustment for multiple comparisons. CONCLUSIONS: Our study identified urinary metabolites with long-term reproducibility that were associated with arsenic exposure. The data established the feasibility of using metabolomics in future larger studies. https://doi.org/10.1289/EHP1992. PMID- 29329107 TI - Growth and growth hormone: recent papers on efficacy and adverse effects of growth hormone and World Health Organisation growth standards. PMID- 29329105 TI - Daily sitting time associated with the risk of metabolic syndrome in Korean adolescents. AB - BACKGROUND: This study aimed to investigate the relationship between daily sitting time and the risk of metabolic syndrome in Korean adolescents. METHODS: Data from 486 adolescents aged 12-18 years were obtained from national surveys. Daily sitting time was measured using questionnaires and divided into three intervals: <8 h; 8-12 h; and >=12 h. RESULTS: The mean daily sitting time and prevalence of positive metabolic components were 620.9+/-9.9 min/day and 45.5+/ 2.7%, respectively. In a multivariate logistic regression analysis, adolescents who sat longer were more likely to have metabolic components (p<0.05), independent of age, sex, area of residence, sleeping time and body mass index. CONCLUSIONS: Longer daily sitting time appears to be associated with an increased risk of metabolic syndrome in adolescents. These findings highlight the need to focus on reducing sitting time for all adolescents, not just for those at risk of obesity. PMID- 29329106 TI - Genetic mutations associated with neonatal diabetes mellitus in Omani patients. AB - BACKGROUND: Neonatal diabetes mellitus (NDM) is a rare disorder worldwide where diabetes is diagnosed in the first 6 months of life. However, Oman has a relatively high incidence of NDM. METHODS: In this study, we investigated the genetic etiologies underlying NDM and their prevalence in Oman. We collected a cohort of 24 NDM patients, with and without genetic diagnosis, referred to our center from 2007 to 2015. All patients without a genetic diagnosis were tested for mutations in 23 NDM-associated genes using a custom-targeted next-generation sequencing (NGS) panel and methylation analysis of the 6q24 locus. RESULTS: A genetic abnormality was detected in 15/24 (62.5%) of our Omani NDM patients. We report the detection of 6q24 methylation abnormalities and KCNJ11 mutations for the first time in Omani NDM patients. Unlike Western populations where NDM is predominantly due to mutations in the KCNJ11, ABCC8 and INS genes, NDM due to homozygous GCK gene mutations were most prevalent in Oman, having been observed in seven out of 15 NDM patients in whom we established the genetic etiology. This reflects the high degree of consanguinity which makes recessive conditions more likely. CONCLUSIONS: The results of this study are likely to impact any future strategy to introduce genetic testing for NDM disorders within the national healthcare system in Oman. PMID- 29329108 TI - Cracking novel shared targets between epilepsy and Alzheimer's disease: need of the hour. AB - Epilepsy and Alzheimer's disease (AD) are interconnected. It is well known that seizures are linked with cognitive impairment, and there are various shared etiologies between epilepsy and AD. The connection between hyperexcitability of neurons and cognitive dysfunction in the progression of AD or epileptogenesis plays a vital role for improving selection of treatment for both diseases. Traditionally, seizures occur less frequently and in later stages of age in patients with AD which in turn implies that neurodegeneration causes seizures. The role of seizures in early stages of pathogenesis of AD is still an issue to be resolved. So, it is well timed to analyze the common pathways involved in pathophysiology of AD and epilepsy. The present review focuses on similar potential underlying mechanisms which may be related to the causes of seizures in epilepsy and cognitive impairment in AD. The proposed review will focus on many possible newer targets like abnormal expression of various enzymes like GSK 3beta, PP2A, PKC, tau hyperphosphorylation, MMPs, caspases, neuroinflammation and oxidative stress associated with number of neurodegenerative diseases linked with epilepsy. The brief about the prospective line of treatment of both diseases will also be discussed in the present review. PMID- 29329109 TI - Cluster analysis and subgrouping to investigate inter-individual variability to non-invasive brain stimulation: a systematic review. AB - Cluster analysis and other subgrouping techniques have risen in popularity in recent years in non-invasive brain stimulation research in the attempt to investigate the issue of inter-individual variability - the issue of why some individuals respond, as traditionally expected, to non-invasive brain stimulation protocols and others do not. Cluster analysis and subgrouping techniques have been used to categorise individuals, based on their response patterns, as responder or non-responders. There is, however, a lack of consensus and consistency on the most appropriate technique to use. This systematic review aimed to provide a systematic summary of the cluster analysis and subgrouping techniques used to date and suggest recommendations moving forward. Twenty studies were included that utilised subgrouping techniques, while seven of these additionally utilised cluster analysis techniques. The results of this systematic review appear to indicate that statistical cluster analysis techniques are effective in identifying subgroups of individuals based on response patterns to non-invasive brain stimulation. This systematic review also reports a lack of consensus amongst researchers on the most effective subgrouping technique and the criteria used to determine whether an individual is categorised as a responder or a non-responder. This systematic review provides a step-by-step guide to carrying out statistical cluster analyses and subgrouping techniques to provide a framework for analysis when developing further insights into the contributing factors of inter-individual variability in response to non-invasive brain stimulation. PMID- 29329110 TI - Prediction of sustained harmonic walking in the free-living environment using raw accelerometry data. AB - OBJECTIVE: Using raw, sub-second-level accelerometry data, we propose and validate a method for identifying and characterizing walking in the free-living environment. We focus on sustained harmonic walking (SHW), which we define as walking for at least 10 s with low variability of step frequency. APPROACH: We utilize the harmonic nature of SHW and quantify the local periodicity of the tri axial raw accelerometry data. We also estimate the fundamental frequency of the observed signals and link it to the instantaneous walking (step-to-step) frequency (IWF). Next, we report the total time spent in SHW, number and durations of SHW bouts, time of the day when SHW occurred, and IWF for 49 healthy, elderly individuals. MAIN RESULTS: The sensitivity of the proposed classification method was found to be 97%, while specificity ranged between 87% and 97% and the prediction accuracy ranged between 94% and 97%. We report the total time in SHW between 140 and 10 min d-1 distributed between 340 and 50 bouts. We estimate the average IWF to be 1.7 steps-per-second. SIGNIFICANCE: We propose a simple approach for the detection of SHW and estimation of IWF, based on Fourier decomposition. PMID- 29329112 TI - Master protocols in lung cancer: experience from Lung Master Protocol. AB - PURPOSE OF REVIEW: Contemporary advances in the understanding of the molecular and immunologic basis of metastatic lung cancer have firmly changed its treatment paradigm to a personalized, biomarker-driven approach. However, the majority of lung-cancer patients [especially lung squamous cell carcinoma (LUSC)] still do not have effective targeted therapeutic options. Master protocols, such as Lung MAP, represent an innovative clinical trial approach designed to accelerate evaluation of novel biomarker-driven therapies. RECENT FINDINGS: Lung-MAP is an umbrella trial for advanced LUSC and has been active since 2014. Cumulative experience from this overarching, multi-institution master protocol has demonstrated that centralized, real-time biomarker screening is feasible and substudy modularity is essential for protocol adaptability in a rapidly changing treatment landscape. In addition, screening and efficacy results from Lung-MAP affirm that LUSC has several putative drivers but remains difficult to effectively treat with targeted therapy. SUMMARY: Master protocols are a feasible and efficient approach for evaluating biomarker-driven therapies in lung cancer. As we begin to target less common genomic and immunotherapy subtypes, centrally coordinated clinical trial designs such as Lung-MAP are necessary to rapidly deliver effective therapies to patients, whereas also maximizing the quality of research data obtained. PMID- 29329113 TI - Therapeutic HIV-1 vaccine: time for immunomodulation and combinatorial strategies. AB - PURPOSE OF REVIEW: The purpose is to recall some of the key immunological elements that are at the crossroad and need to be combined for developing a potent therapeutic HIV-1 vaccine. RECENT FINDINGS: Therapeutic vaccines and cytokines have been commonly used to enhance and/or recall preexisting HIV-1 specific cell-mediated immune responses aiming to suppress virus replication. While the vaccine is important to stimulate HIV-1 specific T-cell responses, the cytokine may support the expansion of the stimulated virus-specific T cells. Moreover, the current success of immune checkpoint blockers in cancer therapy render them very attractive to use in HIV-1 infected individuals, with the objective to preserve the function of HIV-specific T cells from exhaustion and target directly HIV-1 cell reservoir. More recently, the development of passive immunotherapy using broad neutralizing HIV antibodies (bNAbs) and their potential capacity to elicit innate or adaptive HIV-cellular responses, beyond their neutralizing activity, offers a new opportunity to improve the efficiency of therapeutic vaccine. These major advances provide the scientific basis for developing potent combinatorial interventions in HIV-1 infected patients. SUMMARY: Major advances in our immunological understanding resulting from basic science and clinical trials studies have paved the way and established a solid platform to jump over the stumbling blocks that prevent the field from developing a therapeutic HIV-1 vaccine. It is time for immuno-modulation and combinatorial strategies towards HIV-1 eradication. PMID- 29329111 TI - Severe peri-ictal respiratory dysfunction is common in Dravet syndrome. AB - Dravet syndrome (DS) is a severe childhood-onset epilepsy commonly due to mutations of the sodium channel gene SCN1A. Patients with DS have a high risk of sudden unexplained death in epilepsy (SUDEP), widely believed to be due to cardiac mechanisms. Here we show that patients with DS commonly have peri-ictal respiratory dysfunction. One patient had severe and prolonged postictal hypoventilation during video EEG monitoring and died later of SUDEP. Mice with an Scn1aR1407X/+ loss-of-function mutation were monitored and died after spontaneous and heat-induced seizures due to central apnea followed by progressive bradycardia. Death could be prevented with mechanical ventilation after seizures were induced by hyperthermia or maximal electroshock. Muscarinic receptor antagonists did not prevent bradycardia or death when given at doses selective for peripheral parasympathetic blockade, whereas apnea, bradycardia, and death were prevented by the same drugs given at doses high enough to cross the blood brain barrier. When given via intracerebroventricular infusion at a very low dose, a muscarinic receptor antagonist prevented apnea, bradycardia, and death. We conclude that SUDEP in patients with DS can result from primary central apnea, which can cause bradycardia, presumably via a direct effect of hypoxemia on cardiac muscle. PMID- 29329115 TI - Developing a mitral valve center of excellence. AB - PURPOSE OF REVIEW: Despite the proven superiority of mitral repair over replacement for degenerative mitral disease, mitral valve replacement remains common. Guidelines now recommend referral of patients, particularly those whom are asymptomatic, to valve centers of excellence, although criteria that define such centers remain to be established. The purpose of this review is to define the structure of a mitral center of excellence and to review current clinical outcomes which are possible in such a center. RECENT FINDINGS: Recently, American College of Cardiology/American Heart Association as well as the European Society of Cardiology/European Association of Cardiothoracic Surgery guidelines define mitral centers of excellence as either centers in which the likelihood of successful and durable repair exceeds 95% and with an operative mortality risk of less than 1% (American College of Cardiology/American Heart Association definition) or centers with high repair rates, low operative mortality, and a record of durable results (European Society of Cardiology/European Association of Cardiothoracic Surgery definition). There is however less clarity about the structure and function of a center that achieves these outcomes. SUMMARY: The importance of centers of excellence in mitral valve surgery are now well recognized, and this review will highlight the key components and outcomes of an established mitral valve reference center. PMID- 29329114 TI - Synovial sarcomas of the upper aero-digestive tract: is there a role for conservative surgery? AB - PURPOSE OF REVIEW: To present the current state of knowledge concerning the role of conservative surgery in the treatment of synovial sarcomas of the upper aero digestive tract (UADT). RECENT FINDINGS: The wider experience on synovial sarcomas involving the extremities and the results of retrospective reports focused on head and neck synovial sarcomas tend to justify a conservative surgical approach when dealing with tumors involving the UADT. SUMMARY: UADT synovial sarcomas is an extremely rare clinical entity (only around 50 cases reported in the literature, with four more herein presented from our own surgical series), with no clear guidelines concerning its treatment. Resection should be aimed to an en-bloc removal of the tumor within uninvolved surgical margins. In fit patients, a conservative surgical approach should be preferred if it does not interfere with a complete resection and reasonable functional outcomes. Adjuvant treatments (radiotherapy and/or chemotherapy) are frequently needed in view of the aggressive behavior of such tumor, but they should be balanced according to patient's characteristics and tumor risk factors (grade, size, and previous treatments). PMID- 29329116 TI - Concussion Symptom Underreporting Among Incoming National Collegiate Athletic Association Division I College Athletes. AB - OBJECTIVE: Accurate diagnosis of sport-related concussions relies heavily on truthful self-reporting of symptom severity. Previous studies have emphasized lack of knowledge as a factor in symptom nondisclosure. This study sought to examine concussion knowledge and the relationship of knowledge to reasons for symptom nondisclosure. DESIGN: Cross-sectional study. SETTING: Data were collected during preparticipation athletic evaluations via electronic survey. PARTICIPANTS: One hundred fifty-six incoming National Collegiate Athletic Association Division I student-athletes. MAIN OUTCOME MEASURES: Survey items included previous concussion diagnosis, concussion fact and symptom knowledge, reasons and situational contexts for nondisclosure, and stakeholder attitudes. RESULTS: Participants, on average, had substantial concussion symptom and fact knowledge. Unexpectedly, participants with higher concussion fact knowledge endorsed more reasons that athletes may hide symptoms. Concussion symptom knowledge was unrelated to reasons for nondisclosure. Athletes believed that symptom reporting was less likely in high-stakes versus low-stakes situations and consistently identified their teammates as holding attitudes that support underreporting and athletic trainers as engaging in behaviors that support player safety. CONCLUSIONS: Greater concussion knowledge did not reduce the number of reasons that participants viewed as drivers for concussion nondisclosure. In other words, participants understood why athletes choose to hide symptoms even when they also understood the symptoms, risks, sequelae, and consequences of concussion (and potential harm of nondisclosure). Situational contexts and important stakeholder attitudes also appeared to importantly influence symptom disclosure decisions. A multifaceted approach that goes beyond current educational strategies to addresses situational, social, and athletic pressures may be needed to initiate a widespread cultural shift away from concussion nondisclosure. PMID- 29329118 TI - CE: Managing Sepsis and Septic Shock: Current Guidelines and Definitions. AB - : Sepsis is a leading cause of critical illness and hospital mortality. Early recognition and intervention are essential for the survival of patients with this syndrome. In 2002, the Society of Critical Care Medicine (SCCM) and the European Society of Intensive Care Medicine (ESICM) launched the Surviving Sepsis Campaign (SSC) to reduce overall patient morbidity and mortality from sepsis and septic shock by driving practice initiatives based on current best evidence. The SSC guidelines have been updated every four years, with the most recent update completed in 2016. The new guidelines have increased the focus on early identification of infection, risks for sepsis and septic shock, rapid antibiotic administration, and aggressive fluid resuscitation to restore tissue perfusion.In 2014, the SCCM and the ESICM convened a task force of specialists to reexamine the definitions of terms used to identify patients along the sepsis continuum. In 2016, this task force published the Third International Consensus Definitions for Sepsis and Septic Shock (Sepsis-3). The new definitions and recommendations included tools, based on an updated understanding of the pathobiology of sepsis, that can be used to predict adverse outcomes in patients with infection.This article discusses the new SSC treatment guidelines, changes in the sepsis bundle interventions, and the Sepsis-3 definitions and tools, all of which enable nurses to improve patient outcomes through timely collaborative action. PMID- 29329119 TI - Effects of Valproic Acid on Morphology, Proliferation, and Differentiation of Mesenchymal Stem Cells Derived From Human Gingival Tissue. AB - PURPOSE: Valproic acid (VPA), a histone deacetylase inhibitor, has been shown to affect cell growth and differentiation in various in vitro and in vivo models. The aim of this study is to evaluate the effects of VPA on viability and osteogenic differentiation of mesenchymal stem cells derived from the human gingival tissue. MATERIALS AND METHODS: Stem cells derived from the gingiva were grown in the presence of VPA at concentrations ranging from 0.125 to 8 mM. Cell morphology was assessed on days 3, 5, and 7, and cell proliferation was analyzed on the same days using a Cell Counting Kit-8 (CCK-8). Alizarin Red-S staining was used to assess differentiation of the stem cells. RESULTS: The control group showed a normal fibroblast morphology when cultured in growth media. The shape of cells in the 8 mM group was more flat than cells in other groups, and fewer cells were present. A statistically significant decrease in cell proliferation was seen in the 8 mM group. Results of Alizarin Red-S staining showed a significant decrease in mineralization in the 8 mM group. CONCLUSIONS: Taken together, this study demonstrated that VPA, at the tested concentrations, decreases the viability of stem cells derived from the human gingiva. The decreases in osteogenic differentiation were achieved via the decrease of Rux2 expression. The concentration and application time of VPA treatment should be meticulously controlled to minimize any detrimental effects. PMID- 29329117 TI - CE: Original Research: Physical Activity Among Chinese American Immigrants with Prediabetes or Type 2 Diabetes. AB - : : Background: Although the benefits of aerobic exercise and strength training for patients with type 2 diabetes have been studied extensively, research on physical activity among Chinese American immigrants diagnosed with prediabetes or type 2 diabetes has been limited. PURPOSE: We sought to learn more about this population's knowledge of physical activity, the types and intensity levels performed, and the barriers to such activity. DESIGN AND METHODS: A concurrent mixed-methods design was used. The short version of the International Physical Activity Questionnaire-Chinese was used to quantitatively measure participants' levels of exercise intensity. Semistructured face-to-face interviews were conducted to obtain qualitative information regarding participants' knowledge about physical activity, the types performed, and the barriers to such activity. RESULTS: A total of 100 Chinese American immigrants were recruited for the study from January to July 2012 in New York City. On average, participants had lived with a diagnosis of prediabetes or type 2 diabetes for 3.3 years and had lived in the United States for 21.5 years. Energy expenditure was measured in metabolic equivalent of task (MET) units; intensity was measured in cumulative MET-minutes per week. The mean total intensity score was 2,744 MET-minutes per week. This was achieved mainly through walking. The mean intensity score for walking was 1,454 MET-minutes per week; the mean duration was 79 minutes per day. Vigorous physical activity was least common. The mean intensity score for vigorous physical activity was 399 MET-minutes per week, and the mean duration was 17 minutes per week. Regarding types of physical activity, the most common were housekeeping, walking up stairs, and taking walking or stretching breaks every hour during the workday. Based on the interviews, three themes emerged regarding barriers to moderate or vigorous physical activity: insufficient education about physical activity, health concerns about physical activity, and work-related barriers to physical activity. CONCLUSIONS: The majority of Chinese American immigrants with prediabetes or type 2 diabetes do not engage in sufficient physical activity, performing at a rate significantly below that of the general U.S. POPULATION: Increases in the intensity and duration of physical activity should be promoted as part of diabetes management for Chinese American immigrants. PMID- 29329120 TI - Re-osseointegration of Dental Implants After Periimplantitis Treatments: A Systematic Review. AB - PURPOSE: This review considers possible surgical treatment modalities for induced periimplantitis to regain re-osseointegration as reported in the recent literature. MATERIALS AND METHODS: Electronic searches in MEDLINE/PubMed and Google Scholar databases were performed on experimental studies considering induced periimplantitis and attempts to achieve re-osseointegration from 2003 up to December 2016. Conflicts about articles were solved by authors' discussion. RESULTS: A total of 15 studies of 159 were finally included in the review. DISCUSSION: Various implant surface decontamination techniques chemical and/or mechanical have been used either alone or simultaneously with/without guided bone regeneration. Despite the access-flap surgery, it was observed that application of single decontamination measure either chemical or mechanical was not adequate to provide a better treatment outcome. Laser application such as CO2, diode, and Er: YAG has been a new treatment approach used for periimplantitis treatment. Er: YAG laser had showed no implant surface alteration and provided favorable environment for re-osseointegration. CONCLUSION: Promising results were observed in the studies that used combination of bone substitutes together with guided bone regeneration for the regenerative therapy. Regarding implant surfaces, better re-osseointegration was observed with rough implant surfaces rather than smooth ones. PMID- 29329121 TI - Technique for Preparing Ultrathin and Nanothin Descemet Stripping Automated Endothelial Keratoplasty Tissue. AB - PURPOSE: To describe and report outcomes of our single-pass microkeratome technique for preparation of ultrathin (UT, <=100 MUm) and nanothin (NT, <=50 MUm) Descemet stripping automated endothelial keratoplasty (DSAEK) grafts. METHODS: To prepare NT-DSAEK grafts, a pachymetry nomogram specific to each technician and individual microkeratome head was developed based on accumulated precut and postcut pachymetry data from previous DSAEK grafts. Mean graft thickness as well as precut and postcut endothelial cell counts (ECCs) of NT DSAEK, UT-DSAEK, and Descemet membrane endothelial keratoplasty (DMEK) grafts between July 2015 and July 2017 were calculated and compared statistically. Endothelial cell loss was evaluated using calcein AM stains and ImageJ analysis. Postcut graft thickness and rates of perforation/tissue loss for NT-DSAEK grafts between May and July 2017 were calculated to determine overall graft preparation success rates. RESULTS: Mean postcut graft thickness for all grafts within the NT range was 41.0 +/- 6.4 MUm (range 26-50 MUm). Mean ECC did not differ between NT DSAEK, UT-DSAEK, and DMEK grafts (P = 0.759 and 0.633, respectively). The overall tissue loss rate from attempted NT-DSAEK was 4.8%. Excluding cases of perforation, the chance of achieving NT thickness was 60% and within the traditional UT range was 100%. CONCLUSIONS: We propose the term "NT-DSAEK" for grafts <=50 MUm. The described nomogram allows for standardized creation of NT grafts with a low tissue loss rate. This technique is safe and does not result in significant ECC loss compared with UT-DSAEK and DMEK grafts. Further studies are necessary to corroborate the postsurgical results of NT grafts. PMID- 29329122 TI - Some of Us Stay. PMID- 29329123 TI - Golf Injuries: Epidemiology, Pathophysiology, and Treatment. AB - Increasing numbers of people are playing golf. Golf is a unique sport in that the ability to participate at a high level is not limited by age. In addition, participants tend to play more rather than less as they grow older. Injuries can occur at any point during the golf swing, from takeaway through follow-through. Upper extremity injuries can affect the hands, elbow, and shoulder and are usually a result of the golf swing at impact. Injuries are also common in the lower back as well as the lower extremities. Most injuries are the result of overuse and poor swing mechanics. When treating golfers, it is important to have a good understanding of the biomechanics and forces of the golf swing to diagnose and manage the vast spectrum of injuries incurred in this sport. PMID- 29329124 TI - Septic Arthritis of the Wrist. AB - Septic arthritis of the wrist is an uncommon condition, but one that can result in substantial morbidity. Timely identification and treatment is critical to patient care. No serum laboratory values have been shown to consistently confirm wrist joint infection. Thus, diagnosis is made based mainly on a thorough patient history, physical examination, and joint aspiration. When infection is suspected, aspiration of the wrist should be performed to confirm the diagnosis. Broad spectrum antibiotics and joint aspiration or surgery are required to manage the infection and prevent sequelae. PMID- 29329125 TI - On the Horizon From the ORS. PMID- 29329126 TI - Case of Congenital Self-Healing Reticulohistiocytosis Expanding the Spectrum of Blueberry Muffin Baby. AB - Congenital self-healing reticulohistiocytosis (CSHRH) is a benign, rare variant of histiocytosis. This condition can present phenotypically as blueberry muffin baby. This is the case of a male neonate with skin involvement of papulonodular violaceous lesions, which resolved spontaneously. The diagnosis of CSHRH is confirmed using histopathology and immunohistochemistry. PMID- 29329127 TI - Cutis Laxa Acquisita After Urticarial Vasculitis in SLE Patients. AB - Cutis laxa is a rare connective tissue disease involving damage to dermal elastic fibers creating a clinical appearance of loose, sagging skin. The condition can be either acquired or genetic. Autoimmune diseases, neoplasms, infections, and medications have been proposed as the cause of, or in association with, the acquired form. In nearly 50% of cases, erythematous plaques present before the onset of cutis laxa. Separately, urticarial vasculitis and systemic lupus erythematosus have been linked to cutis laxa acquisita. Our case is the first in the literature documenting a coexistence of cutis laxa acquisita, hypocomplementemic urticarial vasculitis, and systemic lupus erythematosus. PMID- 29329128 TI - Expanding the Morphologic Heterogeneity of Stromal Changes in Molluscum Contagiosum Infection. PMID- 29329129 TI - Primary Cutaneous Spindle Cell Squamous Carcinoma Expressing Smooth Muscle Actin: Diagnostic Pitfalls. AB - Alpha smooth muscle actin (SMA) belongs to the actin proteins. It is a known immunohistochemical marker for tumors of mesenchymal origin. There have been reports of expression of SMA in certain epithelial malignancies in the head and neck and genital regions. In this study, the authors report a primary cutaneous spindle cell squamous carcinoma expressing SMA. Both high- and low-molecular weight keratins and p63 were positive, and S100 protein, SOX10, MART-1/Melan-A, and muscle-specific actin stains were negative. This case highlights that an epithelial tumor could express a mesenchymal marker, thereby making the diagnosis problematic. PMID- 29329130 TI - Disseminated Warty Papules and Plaques: Question. PMID- 29329131 TI - ALK Gene Fusions in Epithelioid Fibrous Histiocytoma: A Study of 14 Cases, With New Histopathological Findings. AB - Previous studies showed that ALK is often positive in epithelioid fibrous histiocytoma (EFH). Two cases of EFH with ALK gene fusions have been recorded. Our objective was to study a series of EFH to present histopathological variations of EFH, identify novel ALK gene fusions, and determine whether there is a correlation between histopathological features and particular gene. We investigated 14 cases of EFH, all ALK immunopositive. The cases were assessed histopathologically as well as for ALK and TFE-3 rearrangements using FISH and ALK gene fusions using next-generation sequencing. The analysis of the sequencing results was performed using the Archer Analysis software (v5; ArcherDX Inc). The study group consisted of 8 female and 6 male patients, ranging in age from 18 to 79 years (mean 42 years; median 37.5 years). All presented with a solitary lesion. Microscopically, most lesions were polypoid and composed of epithelioid cells with ample cytoplasm. In addition, a variable number of bi-, tri-, or multinucleated, spindled, multilobated, cells with eccentric nuclei, cells with nuclear pseudoinclusions, mucinous, and grooved cells were admixed. In 5 cases, the predominant epithelioid cell component consisted of rather small cells, whereas spindled cells dominated in 3 cases. Of these, 2 lesions were composed rather of pale eosinophilic to clear cells, occasioning a resemblance to PEComa or leiomyoma. Immunohistochemically, all cases expressed ALK and 11 were positive for TFE-3. The break apart test for ALK was positive in 11 cases, whereas specimens from the remaining 3 cases were not analyzable. ALK genes fusions were found in all but 3 cases and included SQSTM1-ALK (3), VCL-ALK (3), TMP3-ALK (2), PRKAR2A-ALK (1), MLPH-ALK (1), and EML4-ALK (1). No correlation between histological features and type of ALK fusion was found. TFE-3 break apart test was negative. It is concluded that ALK-immunopositive EFH shows ALK gene fusions that involve various protein-coding genes, implicated in a variety of biological processes. Rare variants of EFH rather consist of spindled "non-epithelioid" cells. PMID- 29329132 TI - Cutaneous Nodules and Violaceous Patches on the Legs. PMID- 29329133 TI - Cutaneous Angiosarcoma of the Eyelid Mimicking Morbihan Disease. AB - BACKGROUND: Cutaneous angiosarcoma presents clinically in numerous ways, and can be mistaken for a different clinical entity, particularly when arising at unusual anatomic locations such as the eyelid. CASE PRESENTATION: A 57-year-old woman presented with a 1-year history of eyelid swelling. Concurrent imaging was also suggestive of an edematous process. Multiple superficial biopsies showed nonspecific dermal inflammation and interstitial edema. A diagnosis of Morbihan disease (chronic and idiopathic lymphedema of the eyelid) was rendered, and the patient was treated with compression and local therapy without clinical improvement. Three years after initial presentation, a diagnostic blepharoplasty was performed revealing a deep dermal vascular proliferation composed of anastomosing vascular channels with an atypical endothelial lining. A diagnosis of cutaneous angiosarcoma was ultimately made. CONCLUSIONS: This case illustrates a unique presentation of cutaneous angiosarcoma and the implications of different biopsy techniques in acquiring the correct diagnosis. PMID- 29329134 TI - Asymptomatic Acquired Facial Hyperpigmentation. PMID- 29329135 TI - Clinician Perceptions of the Importance of Hospital Discharge Components for Children. AB - BACKGROUND: Discharging hospitalized children involves several different components, but their relative value is unknown. We assessed which discharge components are perceived as most and least important by clinicians. METHODS: March and June of 2014, we conducted an online discrete choice experiment (DCE) among national societies representing 704 nursing, physician, case management, and social work professionals from 46 states. The DCE consisted of 14 discharge care components randomly presented two at a time for a total of 28 choice tasks. Best-worst scaling of participants' choices generated mean relative importance (RI) scores for each component, which allowed for ranking from least to most important. RESULTS: Participants, regardless of field or practice setting, perceived "Discharge Education/Teach-Back" (RI 11.1 [95% confidence interval, CI: 11.0-11.3]) and "Involve the Child's Care Team" (RI 10.6 [95% CI: 10.4-10.8]) as the most important discharge components, and "Information Reconciliation" (RI 4.1 [95% CI: 3.9-4.4]) and "Assigning Roles/Responsibilities of Discharge Care" (RI 2.8 [95% CI: 2.6-3.0]) as least important. CONCLUSIONS: A diverse group of pediatric clinicians value certain components of the pediatric discharge care process much more than others. Efforts to optimize the quality of hospital discharge for children should consider these findings. PMID- 29329136 TI - Glaucoma Implant Tube Lumen Obstruction Visualized Using Anterior Segment Optical Coherence Tomography. AB - We report a case of glaucoma implant tube lumen obstruction visualized with anterior segment optical coherence tomography (ASOCT) and present its surgical management. The patient was a 66-year-old man with refractory glaucoma associated with traumatic aphakia in the right eye after trabeculectomy, several bleb needling procedures, and scleral fixation of the intraocular lens with pars plana vitrectomy. Finally, we performed Baerveldt implantation at the pars plana of the temporal inferior quadrant with a several Sherwood slit. However, his intraocular pressure (IOP) was >30 mm Hg despite maximum medication for several weeks. We attempted second vitrectomy and completely removed vitreous around the tube tip; however, his IOP remained around 40 mm Hg for several days after the surgery. Therefore, we suspected tube obstruction at the extraocular point of the tube lumen and used ASOCT for assessment. ASOCT revealed material in the tube lumen. We pulled out the tube and then crushed and extruded the obstructing material from the tube tip. We then refixed the tube at the same place and achieved good IOP control after the surgery. Our findings indicate that ASOCT is useful for diagnosing glaucoma implant tube lumen obstruction and surgical decision-making. PMID- 29329137 TI - Macular and Multifocal PERG and FD-OCT in Preperimetric and Hemifield Loss Glaucoma. AB - PURPOSE: To evaluate the ability of macular and multifocal (mf) pattern electroretinogram (PERG) to differentiate preperimetric glaucoma (PG) and glaucoma with hemifield loss (GHL) from controls, to compare the discrimination ability of PERG and fourier-domain optical coherence tomography (FD-OCT), and to assess the relationship between measurements. PATIENTS AND METHODS: Standard automated perimetry, steady-state and transient PERG and mfPERG measurements were obtained from PG (n=14, 24 eyes), GHL (n=5, 7 eyes), and controls (n=19, 22 eyes). Circumpapillary retinal nerve fiber layer (cpRNFL), full-thickness macula, and segmented macular layer thicknesses on FD-OCT were investigated. Measurements were compared using mixed effects linear models. The relationships between measurements and the diagnostic performance of each technology were assessed. RESULTS: Compared with controls, average P50 peak time transient PERG responses were reduced in PG and GHL, whereas average latency and amplitude steady-state and mfPERG responses were abnormal only in GHL. cpRNFL and macular thickness measurements in PG and GHL differed significantly from controls. A significant relationship was found between PERG and most FD-OCT or SAP parameters. Partial least squares discriminant analysis revealed that OCT parameters, along with mfPERG and transient PERG parameters had similar ability to discriminate PG and GHL from healthy controls. CONCLUSIONS: PERG and OCT parameters may be abnormal, with significant correlations between measurements, in PG eyes. Both technologies may be useful for detection of early glaucoma. PMID- 29329138 TI - Relationship of Macular Thickness and Function to Optical Microangiography Measurements in Glaucoma. AB - PURPOSE: The purpose of this article was to evaluate the relationship between macular optical microangiography (OMAG), ganglion cell-inner plexiform layer (GCIPL) thickness, and visual sensitivity measurements of different macular sectors in primary open-angle glaucoma. METHODS: In a cross-sectional study, 39 eyes of 26 primary open-angle glaucoma patients underwent optical coherence tomography imaging and 10-2 visual field examination of the macula in the same session. Linear regression models were used to evaluate the relationships between OMAG, GCIPL thickness, and visual sensitivity measurements in different macular sectors. Strength of relationship was reported as coefficient of determination (R). RESULTS: R values for the associations between OMAG and GCIPL thickness measurements ranged from 0.37 in the temporal sector to 0.56 in the inferior macular sector. R values for the association between OMAG and visual sensitivity measurements ranged from 0.23 in the superior to 0.53 in the inferior macular sector. R values for the association between GCIPL thickness and visual sensitivity measurements ranged from 0.15 in the superior to 0.62 in the temporal sector. CONCLUSIONS: The strongest associations between OMAG, GCIPL thickness, and visual sensitivity measurements were found in the inferior macular sector. The association of OMAG with GCIPL thickness measurements was as strong as the association between OMAG and visual sensitivity measurements in the inferior macular sector. PMID- 29329139 TI - Diagnostic Ability and Structure-function Relationship of Peripapillary Optical Microangiography Measurements in Glaucoma. AB - PURPOSE: The aim of this study was to evaluate the diagnostic abilities of peripapillary optical microangiography (OMAG) measurements in eyes with primary open-angle glaucoma (POAG) and to evaluate the relationship of these measurements with retinal nerve fiber layer (RNFL) thickness and visual sensitivities in different peripapillary sectors. METHODS: In a cross-sectional study, 97 eyes of 57 control subjects and 101 eyes of 66 POAG patients underwent OMAG and RNFL imaging with optical coherence tomography. POAG was diagnosed on the basis of the masked evaluation of optic disc stereo photographs. Area under receiver operating characteristic curves and sensitivities at 90% specificity of the OMAG and RNFL thickness measurements in different peripapillary sectors were evaluated. Association between OMAG, RNFL thickness, and visual sensitivity measurements were evaluated using fractional polynomial regression models. RESULTS: All OMAG and RNFL measurements were significantly less in the POAG compared with the control eyes. Diagnostic abilities of the best OMAG measurement (inferior sector vessel length density, area under receiver operating characteristic curves: 0.84, sensitivity at 90%, specificity: 65%) were significantly less (P<0.05) than that of the best RNFL measurement (inferior sector RNFL thickness, 0.94 and 81%). Inferior sector vessel length density showed the strongest association with inferior sector RNFL thickness (R=0.66, P<0.001) and the superior sector visual sensitivity loss (R=0.21, P=0.006). CONCLUSIONS: The inferior sector OMAG measurements had the best diagnostic ability in glaucoma and the strongest association with RNFL and the visual sensitivity measurements. Diagnostic ability of OMAG measurements, however, were significantly less than the RNFL thickness measurements. PMID- 29329140 TI - Slit-lamp Needling of the Anterior Capsule for Aqueous Misdirection After Hyaloido-zonulectomy and Iridectomy. AB - INTRODUCTION: We present a case of persistent aqueous misdirection, after Ahmed glaucoma valve surgery, despite undergoing an anterior vitrectomy with hyaloido zonulectomy and iridectomy. CASE REPORT: A 73-year-old female patient, 4 months after phacotrabeculectomy, was referred with persistent high intraocular pressure (IOP). Postoperatively, she developed aqueous misdirection with a flat anterior chamber (AC) but with an IOP of 15 mm Hg. On presentation, her AC was shallow with peripheral iris-cornea touch, and her IOP was 39 mm Hg. Posterior Nd:Yag capsulotomy with disruption of anterior hyaloid face partially deepened the AC. With failure of the trabeculectomy and high IOP, an Ahmed valve was placed. On the first operative day the AC was deep with an IOP of 10 mm Hg. On day 6 the patient presented with pain, flat AC, and an IOP of 10 mm Hg. Fundus examination revealed no choroidal effusion. Despite repeated reformation with viscoelastic, the AC failed to deepen. An anterior vitrectomy with hyaloido-zonulectomy was performed. Initially, the AC was deep, but, a few days later, it was flat. Multiple reformations and vitreous tap failed to keep the AC deep. A 30-G needle was passed at the slit lamp across the temporal cornea, iris, and anterior capsule into the anterior vitreous cavity. The needle was then partially withdrawn and used to create a space between the intraocular lens and anterior capsule. This immediately deepened the AC and remained so for the duration of follow-up (4 mo). CONCLUSION: Slit-lamp needling of the anterior lens capsule can be successfully performed to help resolve a persistent case of aqueous misdirection after anterior vitrectomy. PMID- 29329141 TI - Precision of Optic Nerve Head and Retinal Nerve Fiber Layer Parameter Measurements by Spectral-domain Optical Coherence Tomography. AB - PURPOSE: The aim of this study was to assess the repeatability and reproducibility (R&R) of Bruch membrane opening based on minimum rim width (BMO MRW), minimum rim area (BMO-MRA) and peripapillary retinal nerve fiber layer thickness (RNFLT) with the Spectralis optical coherence tomography (Heidelberg Engineering) for normal and glaucoma subjects. Precise measurement of these parameters can support detection of structural glaucomatous damage and progression. METHODS: This cross-sectional study included 16 healthy controls and 16 patients with glaucoma. One eye was randomly selected and included in this study. Subjects underwent 1 baseline and 3 follow-up measurements, using 3 different Spectralis optical coherence tomography devices in randomized order, each operated by a single operator. Outcome measures were global and sectorial averages of BMO-MRW and BMO-MRA, and of peripapillary RNFLT obtained from 12/14/16-degree circle scans. Coefficients of variation (COV) were calculated and a mixed-effects analysis of variance was performed to compare R&R between devices. RESULTS: COVs of global and sectorial BMO-MRW measurement under repeatability conditions ranged from 0.51% to 1.7% (normal, 0.62% to 1.3%; glaucoma, 0.64% to 2.3%). Respective COVs under reproducibility conditions ranged from 0.89% to 1.9% (normal, 0.77% to 2.8%; glaucoma, 1.1% to 2.6%). COVs of global and sectorial RNFLT measurements under repeatability conditions ranged from 0.5% to 2.8%. Respective COVs under reproducibility conditions ranged from 1.6% to 3.5%. CONCLUSIONS: For R&R, the COVs of measured parameters were by trend higher for glaucoma eyes compared with normal controls. The BMO-MRW measurement system has an excellent precision taking into account that major and minor corrections of segmentation have to be done by the examiner before evaluation. PMID- 29329142 TI - Whole-genome methylation profiling of peripheral blood mononuclear cell for acute exacerbations of chronic obstructive pulmonary disease treated with corticosteroid. AB - OBJECTIVE: Although association studies in the general population may be relevant for determining susceptibility to chronic obstructive pulmonary disease (COPD), they may be less applicable for pharmacogenetics research in participants who have already acquired the disease. PATIENTS AND METHODS: A genome-wide methylation profiling (generated by HumanMethylation450 BeadChips study was performed on peripheral blood mononuclear cells of 24 patients with AECOPD (acute exacerbation COPD), with good and poor responsiveness to standard corticosteroid treatment. Pyrosequencing was used to replicate the selected CpG sites in 50 patients with AECOPD with standard corticosteroid treatment. RESULTS: The results showed the patients with AECOPD with good and poor response to standard corticosteroid treatment have a distinct DNA methylation pattern. A total of 23 CpG loci located in 19 known gene regions, including gene-body and promoter, appeared to be significantly differentially methylated. Replication by pyrosequencing revealed that one CpG site in PSMD8 showed the same trend of differential methylation and reached to statistical significance as the microarray result. CONCLUSION: Our preliminary findings provide evidence for molecular heterogeneity in patients with AECOPD, which may contribute to significant differences in their response to COPD treatment. PMID- 29329143 TI - Wellness, stress, balance...and resilience. PMID- 29329144 TI - Cybersecurity matters. AB - How to safeguard patient and other sensitive data. PMID- 29329145 TI - Orthopaedic Management of Leg-length Discrepancy in Proteus Syndrome: A Case Series. AB - INTRODUCTION: Proteus syndrome (PS) is a rare mosaic disorder comprising asymmetric bony and soft tissue overgrowth leading to significant morbidity. Placement of growth inhibition hardware with subsequent epiphyseal arrest improves leg-length and angular deformities in pediatric patients without PS. The purpose of this study was to review the surgical approach and present outcomes, complications, and recommendations in 8 patients with PS and leg-length discrepancy (LLD). METHODS: We conducted a retrospective chart review of 8 patients with PS whose primary reason for surgery was LLD. Patients were eligible if they met clinical diagnostic criteria for PS and if the National Institutes of Health team performed at least 1 of their surgical interventions between 2005 and 2015. Surgical techniques included growth inhibition, with tension band plates, applied >=1 times, and epiphyseal arrest. RESULTS: Eight patients, followed for an average of 4.6 years (range, 1.0 to 7.1 y) after the index procedure, were included in this analysis. Average age at first LLD surgery was 9.4 years (range, 6.1 to 13.6 y); the average LLD was 3.4 cm (range, 0.4 to 7.0 cm) at presentation, and 5.0 cm (range, 1.8 to 10.0 cm) at the time of the first LLD surgery. Participants underwent 23 total surgeries (range, 1 to 5 per patient) and 7 patients have completed surgical intervention. For the 7 patients who did not require overcorrection the average LLD at the last clinical encounter was 2.6 cm (range, 0.6 to 7.2 cm). We encountered 2 complications: 2 patients developed mild knee valgus, which responded to standard guided growth techniques. CONCLUSIONS: This case series suggests that growth inhibition and epiphyseal arrest in children with PS can reduce LLD with few complications. Careful monitoring, rapid mobilization, deep venous thrombosis prophylaxis, and sequential compression devices were also integral elements of our surgical protocol. LEVEL OF EVIDENCE: Level IV. PMID- 29329146 TI - National Prevalence and Effects of Multiple Chemical Sensitivities. AB - OBJECTIVE: The aim of this study was to assess the prevalence of multiple chemical sensitivities (MCS), its co-occurrence with asthma and fragrance sensitivity, and effects from exposure to fragranced consumer products. METHODS: A nationally representative cross-sectional population-based sample of adult Americans (n = 1137) was surveyed in June 2016. RESULTS: Among the population, 12.8% report medically diagnosed MCS and 25.9% report chemical sensitivity. Of those with MCS, 86.2% experience health problems, such as migraine headaches, when exposed to fragranced consumer products; 71.0% are asthmatic; 70.3% cannot access places that use fragranced products such as air fresheners; and 60.7% lost workdays or a job in the past year due to fragranced products in the workplace. CONCLUSION: Prevalence of diagnosed MCS has increased over 300%, and self reported chemical sensitivity over 200%, in the past decade. Reducing exposure to fragranced products could help reduce adverse health and societal effects. PMID- 29329147 TI - Multisource Feedback and Narrative Comments: Polarity, Specificity, Actionability, and CanMEDS Roles. AB - INTRODUCTION: Multisource feedback is a questionnaire-based assessment tool that provides physicians with data about workplace behaviors and may combine numeric and narrative (free-text) comments. Little attention has been paid to wording of requests for comments, potentially limiting its utility to support physician performance. This study tested the phrasing of two different sets of questions. METHODS: Two sets of questions were tested with family physicians, medical and surgical specialists, and their medical colleague and coworker respondents. One set asked respondents to identify one thing the participant physician does well and one thing the physician could target for action. Set 2 questions asked what does the physician do well and what might the physician do to enhance practice. Resulting free-text comments provided by respondents were coded for polarity (positive, neutral, or negative), specificity (precision and detail), actionability (ability to use the feedback to direct future activity), and CanMEDS roles (competencies) and analyzed descriptively. RESULTS: Data for 222 physicians (111 physicians per set) were analyzed. A total of 1824 comments (8.2/physician) were submitted, with more comments from coworkers than medical colleagues. Set 1 yielded more comments and were more likely to be positive, semi specific, and very actionable than set 2. However, set 2 generated more very specific comments. Comments covered all CanMEDS roles with more comments for collaborator and leader roles. DISCUSSION: The wording of questions inviting free text responses influences the volume and nature of the comments provided. Individuals designing multisource feedback tools should carefully consider wording of items soliciting narrative responses. PMID- 29329148 TI - Self-reported Health Status Differs for Amazon's Mechanical Turk Respondents Compared With Nationally Representative Surveys. AB - BACKGROUND: Amazon's Mechanical Turk (MTurk) platform has become a data source for peer-reviewed academic research publications, with over 24,000 Google Scholar search results. Although well-developed and supportive in other disciplines, the literature in health and medicine comparing results from samples generated on MTurk to gold standard, nationally representative health and medical surveys is beginning to emerge. OBJECTIVE: To compare the demographic, socioeconomic, and self-reported health status variables in an MTurk sample to those from 2 prominent national probability surveys, including the Medical Expenditure Panel Survey (MEPS) and the Behavioral Risk Factor Surveillance System (BRFSS). RESEARCH DESIGN: We analyze weighted and unweighted tabulations of the MTurk, MEPS, and BRFSS. Wald tests identify statistical significance. MEASURES: Demographic, socioeconomic, and health status variables in an adult MTurk sample collected in 2016 (n=1916), the 2015 MEPS household survey component (n=21,210), and the 2015 BRFSS (n=283,502). RESULTS: Our findings indicate statistically significant differences in the demographic, socioeconomic, and self-perceived health status tabulations in the MTurk sample relative to the unweighted and weighted MEPS and BRFSS. The MTurk sample is more likely to be female (65.8% in MTurk, 50.9% in MEPS, 50.2% in BRFSS), white (80.1% in MTurk, 76.9% in MEPS, and 73.9% in BRFSS), non-Hispanic (91.1%, 82.4%, and 81.4%, respectively), younger, and less likely to report excellent health status (6.8% in MTurk, 28.3% in MEPS, and 20.2% in BRFSS). CONCLUSIONS: We find significant differences across variables that warrant hesitation in using MTurk data as a replacement for the gold standard datasets in health services research. PMID- 29329149 TI - Author Response for An Electronic Health Record-based Intervention to Promote Hepatitis C Virus Testing Among Adults Born Between 1945 and 1965: A Cluster randomized Trial. PMID- 29329150 TI - Comparison of Iodine Density Measurement Among Dual-Energy Computed Tomography Scanners From 3 Vendors. AB - OBJECTIVES: The aims of this study were to analyze the effect of dual-energy computed tomography (DECT) scanners and fluid characteristics on iodine quantification and to calculate the measurement variability range induced by those variables. METHODS: We performed an experimental phantom study with 4 mediastinal iodine phantoms. Each phantom contained 6 tubes of different iodine concentrations (0, 1.0, 2.5, 5.0, 10.0, and 20.0 mg/mL) diluted in a specific solvent, which was water, 10% amino acid solution, 20% lipid emulsion, or 18% calcium solution, respectively. Mediastinal phantoms were inserted into an anthropomorphic chest phantom and were scanned with 3 different DECT scanners from 3 vendors using 2 radiation dosage settings. Iodine density (IoD) and computed tomography (CT) attenuation at virtual monoenergetic 70-keV images and virtual nonenhanced images were measured for the iodine phantoms. The effects of DECT scanners, solvents, and radiation dosage on the absolute measurement error of IoD and on the CT attenuation profiles were investigated using linear mixed effects models. Measurement variability range of IoD was also determined. RESULTS: Absolute error of IoD was not significantly affected by the DECT systems, kind of solvents, and radiation dosage settings. However, CT attenuation profiles were significantly different among the DECT vendors and simulated body fluids. Measurement variability range of IoD was from -0.6 to 0.4 mg/mL for the true iodine concentration 0 mg/mL. CONCLUSIONS: Dual-energy CT systems and fluid characteristics did not have a significant effect on the IoD measurement accuracy. A cutoff of IoD for the determination of a truly enhancing lesion on DECT would be 0.4 mg/mL. PMID- 29329152 TI - Remotely Supervised Transcranial Direct Current Stimulation After ECT Improves Mood and Cognition in a Patient With Multiple Sclerosis: A Case Study. PMID- 29329153 TI - Limiting Legal Intrusions in ECT Practice, a Commentary on "Regulation of Electroconvulsive Therapy: A Systematic Review of US State Laws". PMID- 29329151 TI - Gadolinium Retention, Brain T1 Hyperintensity, and Endogenous Metals: A Comparative Study of Macrocyclic Versus Linear Gadolinium Chelates in Renally Sensitized Rats. AB - OBJECTIVES: This preclinical study was designed to compare gadolinium (Gd) brain uptake after repeated injections of a macrocyclic Gd-based contrast agent (GBCA) (gadoterate meglumine) or 2 linear GBCAs (L-GBCAs) (gadobenate dimeglumine or gadodiamide) on a translational model of moderate renal impairment in rats. METHODS: The study was carried out in subtotally nephrectomized rats. Animals received 4 intravenous injections per week of GBCA (gadoterate meglumine, gadobenate dimeglumine, or gadodiamide) for 5 weeks, resulting in a cumulative dose of 12 mmol/kg, followed by a 1-month injection-free period. T1 hyperintensity in the deep cerebellar nuclei (DCNs) was investigated, and brain structures were carefully dissected to determine elemental Gd, iron (Fe), copper (Cu), and zinc (Zn) distribution by mass spectrometry. Urinary excretion of endogenous metals was also investigated soon after GBCA administration and several days later in order to assess a potential transmetalation phenomenon. RESULTS: Unlike gadoterate, repeated injections of L-GBCAs gadobenate and gadodiamide both induced T1 hyperintensity in the DCNs. Fine dissection of cerebral and cerebellar structures demonstrated very low levels or absence of Gd after repeated injections of gadoterate, in contrast to the two L-GBCAs, for which the highest total Gd concentration was demonstrated in the DCNs (Gd concentration in DCNs after 4.5 weeks of injection-free period: 27.1 +/- 6.5 nmol/g for gadodiamide [P < 0.01 vs saline and P < 0.05 vs gadoterate]; 12.0 +/- 2.6 nmol/g for gadobenate [P < 0.09 vs saline]; compared with 1.4 +/- 0.2 nmol/g for gadoterate [ns vs saline]). The distribution of Gd concentration among the various brain structures dissected was also well correlated with the Fe distribution in these structures. No difference in endogenous metal levels in brain structures was observed. However, injection of gadobenate or gadodiamide resulted in an increase in urinary Zn excretion (urinary Zn concentrations: 57.9 +/- 20.5 nmol/mL with gadobenate [P < 0.01 vs gadoterate and saline] and 221.6 +/ 83.3 nmol/L with gadodiamide [P < 0.0001 vs all other treatments] vs 8.1 +/- 2.3 nmol/L with saline and 10.6 +/- 4.8 nmol/L with gadoterate]). CONCLUSIONS: In a model of renally impaired rats, only traces of gadoterate meglumine were detected in the brain with no T1 hyperintensity of the DCNs, whereas marked Gd retention was observed in almost all brain areas after injections of the L-GBCAs, gadobenate dimeglumine and gadodiamide. Brain structures with higher Gd uptake corresponded to those structures containing more Fe. Urinary Zn excretion was significantly increased after a single injection of L-GBCAs. PMID- 29329154 TI - Effects on Volume Load and Ratings of Perceived Exertion in Individuals Advanced Weight-Training After Transcranial Direct Current Stimulation. AB - The aim of this study was investigate the effects of transcranial direct current stimulation (tDCS) on volume-load and ratings of perceived exertion. Fifteen young healthy individuals, aged between 20 and 30 years in advanced strength training were recruited. Test and retest of the 10 maximum repetitions (10RM) were performed to determine the reliability of load utilized. Subjects performed three experimental conditions in a randomized, double-blinded crossover design: anodic stimulation (a-tDCS), cathodic stimulation (c-tDCS) and sham (2 mA for 20 minutes targeting the dorsolateral prefrontal cortex cortex left). Immediately after the experimental conditions, subjects completed one set of maximum repetitions with 10RM load (volume-load) and answered to OMNI-RES (Post stimulation) (level of significance p <= 0.05). The volume-load showed main effect for condition (F(2, 28)= 164.801; p<0.001). In post-stimulation, a-tDCS was greater than c-tDCS (p <= 0.001), and sham (p <= 0.001). For ratings of perceived exertion (OMNI-RES), the results showed main effect for condition (F(2, 28)=9.768; p <= 0.05). In post-stimulation, c-tDCS was greater than a-tDCS (p <= 0.05), and sham (p <= 0.05). We conclude that the use of a-tDCS may promote increased in volume-load for the LP45 exercise. Moreover, higher-volume loads are necessary to maximize muscle strength and anabolism. PMID- 29329155 TI - Ecological validity and reliability of an age-adapted endurance field test in young male soccer players. AB - The purpose of this study was to examine the reliability and the association with relevant match activities (ecological validity) of an age-adapted field test for intermittent high-intensity endurance known as Yo-Yo intermittent recovery level 1 children test (YYIR1C) in young male soccer players. Twenty-eight young male outfield soccer players (age 11.1+/-0.9 years, height 142+/-4.4 cm, body mass 37.0+/-5.9 kg) with at least 2 years of experience in soccer competitions were tested twice using YYIR1C and an age-adapted competitive small-sided game (i.e., 9v9), 7 days apart in a random order. The YYIR1C performance showed an excellent relative (ICC=0.94) and a good absolute reliability (TEM as %CV=5.1%). Very large and significant associations were found between YYIR1C performance and match high intensity activity (r=0.53). Large correlations were found between YYIR1C and match sprinting (r=0.42) and high-intensity metabolic power (r=0.46) distances. Match total distance was largely associated with YYIR1C (r=0.30). The results of this study showed that YYIR1C may be considered a valid and reliable field test for assessing intermittent high-intensity endurance in young male soccer players. Due to the relevance of aerobic fitness in youth soccer, future studies testing the sensitiveness of YYIR1C are necessary. PMID- 29329156 TI - Impact of Integrated Health Care Delivery on Racial and Ethnic Disparities in Pancreatic Cancer. AB - OBJECTIVES: The objective of this study was to evaluate whether disparities in pancreatic cancer diagnosis, treatment, and survival are reduced in an integrated health system. METHODS: We conducted a retrospective study (2006-2014) among patients with pancreatic cancer from Kaiser Permanente Southern California. Racial ethnic groups included non-Hispanic whites (NHW), non-Hispanic blacks (NHB), Hispanics, and Asians. We used multivariable and Cox regression analyses to evaluate disparities in diagnosis and treatment utilization (oncology care, surgery, time to surgery, chemotherapy) and overall survival, respectively. RESULTS: Among 2103 patients, 54% were diagnosed with stage IV disease, 80% received oncology consultation, 20% received surgery with mean time to surgery 27 days (standard deviation, 36.8), 50.4% received chemotherapy. Mean overall survival was 8.6 months (standard deviation, 11.5). There were no differences in odds of stage IV diagnosis, oncology consultation, surgery, or time to surgery by racial ethnic group. Asians were more likely to receive chemotherapy (odds ratio, 1.59; 95% confidence interval [CI], 1.09-2.32) compared to NHW. NHB (hazard ratio, 0.78; 95% CI, 0.67-0.91) and Asians (hazard ratio, 0.81; 95% CI, 0.66 1.00) had improved survival compared to NHW. CONCLUSIONS: Minorities were not disadvantaged in pancreatic cancer care. Improved health care coordination may improve current disparities. PMID- 29329157 TI - Smad4 Loss Correlates With Higher Rates of Local and Distant Failure in Pancreatic Adenocarcinoma Patients Receiving Adjuvant Chemoradiation. AB - OBJECTIVES: The tumor suppressor gene SMAD4 (DPC4) is genetically inactivated in approximately half of pancreatic ductal adenocarcinomas (PDAs). We examined whether Smad4 tumor status was associated with outcomes after adjuvant chemoradiation (CRT) for resected PDAs. METHODS: Patients treated with adjuvant CRT were identified (N = 145). Smad4 status was determined by immunolabeling and graded as intact or lost. Kaplan-Meier method and multivariable competing risk analyses were performed. RESULTS: On multivariate competing risk analysis, Smad4 loss was associated with increased risk of local recurrence (LR) (hazard ratio, 2.37; 95% confidence interval, 1.10-5.11; P = 0.027), distant failure (DF) (hazard ratio, 1.71; 95% confidence interval, 1.03-2.83; P = 0.037), and synchronous LR and DF at first recurrence (14.9 % vs 5.3%, P = 0.07) compared with Smad4 intact cancers. Smad4 loss was not associated with median overall survival (22 vs 22 months; P = 0.63) or disease-free survival (lost [13.6 months] vs intact [13.5 months], P = 0.79). CONCLUSIONS: After PDA resection and adjuvant CRT, Smad4 loss correlated with higher risk of LR and DF, but not with survival. Smad4 loss may help predict which surgical patients are at higher risk for failure after definitive management and may benefit from intensified adjuvant therapy. PMID- 29329158 TI - Expression of Gastrin Family Peptides in Pancreatic Islets and Their Role in beta Cell Function and Survival. AB - OBJECTIVES: Modulation of cholecystokinin (CCK) receptors has been shown to influence pancreatic endocrine function. METHODS: We assessed the impact of the CCKA and CCKB receptor modulators, (pGlu-Gln)-CCK-8 and gastrin-17, respectively, on beta-cell secretory function, proliferation and apoptosis and glucose tolerance, and investigating alterations of CCK and gastrin islet expression in diabetes. RESULTS: Initially, the presence of CCK and gastrin, and expression of their receptors were evidenced in beta-cell lines and mouse islets. (pGlu-Gln) CCK-8 and gastrin-17 stimulated insulin secretion from BRIN-BD11 and 1.1B4 beta cells, associated with no effect on membrane potential or [Ca]i. Only (pGlu-Gln) CCK-8 possessed insulin secretory actions in isolated islets. In agreement, (pGlu Gln)-CCK-8 improved glucose disposal and glucose-induced insulin release in mice. In addition, (pGlu-Gln)-CCK-8 evoked clear satiety effects. Interestingly, islet colocalization of CCK with glucagon was elevated in streptozotocin- and hydrocortisone-induced diabetic mice, whereas gastrin coexpression in alpha cells was reduced. In contrast, gastrin colocalization within beta-cells was higher in diabetic mice, while CCK coexpression with insulin was decreased in insulin deficient mice. (pGlu-Gln)-CCK-8 and gastrin-17 also augmented human and rodent beta-cell proliferation and offered protection against streptozotocin-induced beta-cell cytotoxicity. CONCLUSIONS: We highlight the direct involvement of CCKA and CCKB receptors in pancreatic beta-cell function and survival. PMID- 29329159 TI - Overexpression of the Long Noncoding RNA HomeoboxA Transcript at the Distal Tip Predicts Poor Prognosis in a KRAS-Independent Manner in Periampullary Region Tumors. AB - OBJECTIVES: Periampullary region tumors (PRTs) are the fifth highest cause of cancer-related deaths worldwide. Although recent studies have highlighted the prognostic value of the long noncoding RNA HomeoboxA transcript at the distal tip (HOTTIP) in patients with pancreatic ductal adenocarcinoma, the relationship between HOTTIP and clinical outcome of all PRTs remains obscure. The aim of this study was to clarify the prognostic significance of HOTTIP in patients with all PRTs related to KRAS mutational status. METHODS: HomeoboxA transcript at the distal tip expression was detected in 100 PRT samples using quantitative real time polymerase chain reaction. The associations between HOTTIP levels, clinicopathological factors, and patient prognosis were also analyzed. RESULTS: The expression of HOTTIP was found to be significantly upregulated by 32-fold (P = 0.031) in tumor tissues compared with normal tissues. The over expression of HOTTIP was related with presence of invasion and metastasis (P = 0.0467, P = 0.0256). In addition, increased HOTTIP expression was associated with poor prognosis independent of KRAS mutation (P < 0.001; n = 72). Moreover, multivariate analysis showed that high HOTTIP expression was an unfavorable prognostic factor for overall survival. CONCLUSIONS: Our findings indicate that high levels of HOTTIP expression have the potential to be an independent, unfavorable prognostic factor for patients with PRT. PMID- 29329160 TI - Predictive Effect of the Total Number of Examined Lymph Nodes on N Staging and Survival in Pancreatic Neuroendocrine Neoplasms. AB - OBJECTIVES: We aim to examine the predictive effect of the total number of examined lymph nodes on N stage and survival in pancreatic neuroendocrine neoplasms (pNENs) and to determine the optimal threshold. METHODS: A pNENs data set from 2004 to 2013 was extracted from the Surveillance, Epidemiology, and End Result database. Multivariate logistic regression and Cox proportional hazards model were used to identify predictive factors associated with N stage and survival, respectively. RESULTS: Totally, 1280 pNENs were analyzed. The 11 to 15 lymph nodes examined showed a strong association with the N1 stage (6-10 vs 11 15: odds ratio, 0.672; P = 0.042; 11-15 vs 16-20: odds ratio, 1.049; P = 0.840). However, it failed to show any survival benefit in pNENs with or without lymph node metastasis. CONCLUSIONS: Examining at least 11 lymph nodes may be useful to accurately classify the N stage for pNENs. PMID- 29329161 TI - Utility of Endoscopic Ultrasonography Screening for Small Pancreatic Cancer and Proposal for a New Scoring System for Screening. AB - OBJECTIVES: This study aimed to evaluate the utility of endoscopic ultrasonography screening for small pancreatic cancer (PC) and propose a new simple scoring system for selecting individuals who should be screened. METHODS: Risk factors or symptoms related to PC were tentatively divided into high- and low-grade risk groups based mainly on reported relative risk values. Numbers of risk factors were designated as risk scores. Endoscopic ultrasonography screening was performed for 632 individuals. We analyzed scores for PC detection prospectively, and risk factors and scores of PC patients retrospectively. RESULTS: We detected 10 small malignant pancreatic neoplasms (size <=20 mm; 8 PCs; 9 Tis or T1) and 14 advanced PCs. All small PCs and 95.5% of PCs were found in individuals with low-grade risk scores of at least 3 points (P) or high-grade risk scores of at least 1P. Both average risk scores were significantly higher in patients with small PCs (P <= 0.04). Cutoffs for low- and high-grade risk scores implying the presence of small PC and all PC were 3P and 1P, respectively. When subjects having one or both cutoff scores were screened, sensitivity and specificity were 100% and 64.4% for small PCs and 95.5% and 64.4% for all PCs. CONCLUSION: Endoscopic ultrasonography screening combining new scoring is effective for detecting small PC. PMID- 29329162 TI - Reorganizing Care With the Implementation of Electronic Medical Records: A Time Motion Study in the PICU. AB - OBJECTIVES: To assess caregivers' patient care time before and after the implementation of a reorganization of care plan with electronic medical records. DESIGN: A prospective, observational, time-motion study. SETTING: A level 3 PICU. PARTICIPANTS: Nurses and orderlies caring for intubated patients during an 8-hour work shift before (2008-2009) and after (2016) implementation of reorganization of care in 2013. INTERVENTIONS: The reorganization plan included improved telecommunication for healthcare workers, increased tasks delegated to orderlies, and an ICU-specific electronic medical record (Intellispace Critical Care and Anesthesia information system, Philips Healthcare). MEASUREMENTS AND MAIN RESULTS: Time spent completing various work tasks was recorded by direct observation, and proportion of time in tasks was compared for each study period. A total of 153.7 hours was observed from 22 nurses and 14 orderlies. There was no significant difference in the proportion of nursing patient care time before (68.8% [interquartile range, 48-72%]) and after (55% [interquartile range, 51 57%]) (p = 0.11) the reorganization with electronic medical record. Direct patient care task time for nurses was increased from 27.0% (interquartile range, 30-37%) before to 34.7% (interquartile range, 33-75%) (p = 0.336) after, and indirect patient care tasks decreased from 33.6% (interquartile range, 23-41%) to 18.6% (interquartile range, 16-22%) (p = 0.036). Documentation time significantly increased from 14.5% (interquartile range, 12-22%) to 26.2% (interquartile range, 23-28%) (p = 0.032). Nursing productivity ratio improved from 28.3 to 26.0. A survey revealed that nursing staff was satisfied with the electronic medical record, although there was a concern for the maintenance of oral communication in the unit. CONCLUSIONS: The reorganization of care with the implementation of an ICU-specific electronic medical record in the PICU did not change total patient care provided but improved nursing productivity, resulting in improved efficiency. Documentation time was significantly increased, and concern over reduced oral communication arose, which should be a focus for future electronic improvement strategies. PMID- 29329163 TI - The Importance of Parental Connectedness and Relationships With Healthcare Professionals in End-of-Life Care in the PICU. AB - OBJECTIVES: Support from healthcare professionals in a PICU is highly valuable for parents of dying children. The way they care for the patients and their families affects the parents' initial mourning process. This study explores what interaction with hospital staff is meaningful to parents in existential distress when their child is dying in the PICU. DESIGN: Qualitative interview study. SETTING: Level 3 PICU in the Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, and the Netherlands. SUBJECTS: Thirty-six parents of 20 children who had died in this unit 5 years previously. INTERVENTIONS: Parents participated in audio-recorded interviews in their own homes. The interviews were transcribed and analyzed using qualitative methods. MEASUREMENTS AND MAIN RESULTS: Parents' narratives of their child's end-of-life stage in the PICU bespeak experiences of estrangement, emotional distancing, and loneliness. Significant moments shared with hospital staff that remained valuable even after 5 years primarily involved personal connectedness, reflected in frequent informational updates, personal commitment of professionals, and interpersonal contact with doctors and nurses. CONCLUSIONS: Parents whose children died in the PICU value personal connectedness to doctors and nurses when coping with existential distress. Medical and nursing training programs should raise awareness of parents' need for contact in all interactions but especially in times of crisis and apprehension. PMID- 29329164 TI - A Systematic Review of Risk Factors Associated With Cognitive Impairment After Pediatric Critical Illness. AB - OBJECTIVES: To identify risk factors associated with cognitive impairment as assessed by neuropsychologic tests in neurotypical children after critical illness. DATA SOURCES: For this systematic review, we searched the Cochrane Library, Scopus, PubMed, Ovid, Embase, and CINAHL databases from January 1960 to March 2017. STUDY SELECTION: Included were studies with subjects 3-18 years old at the time of post PICU follow-up evaluation and use of an objective standardized neuropsychologic test with at least one cognitive functioning dimension. Excluded were studies featuring patients with a history of cardiac arrest, traumatic brain injury, or genetic anomalies associated with neurocognitive impairment. DATA EXTRACTION: Twelve studies met the sampling criteria and were rated using the Newcastle-Ottawa Quality Assessment Scale. DATA SYNTHESIS: Ten studies reported significantly lower scores in at least one cognitive domain as compared to healthy controls or normed population data; seven of these-four case-control and three prospective cohort studies-reported significant lower scores in more than one cognitive domain. Risk factors associated with post critical illness cognitive impairment included younger age at critical illness and/or older age at follow-up, low socioeconomic status, high oxygen requirements, and use of mechanical ventilation, sedation, and pain medications. CONCLUSIONS: Identifying risk factors for poor cognitive outcomes post critical illness may help healthcare teams modify patient risk and/or provide follow-up services to improve long-term cognitive outcomes in high-risk children. PMID- 29329165 TI - Repeat Rapid Response Events in Children: Characteristics and Outcomes. AB - OBJECTIVE: We describe the characteristics and outcomes of pediatric repeat rapid response events within a single hospitalization. We hypothesized that triggers for repeat rapid response and initial rapid response events are similar, and repeat rapid response events are associated with high prevalence of medical complexity and worse outcomes. DESIGN: A 3-year retrospective study. SETTING: High-volume tertiary academic pediatric hospital. PATIENTS: All rapid response events were reviewed to identify repeat rapid response events. INTERVENTION: None. MEASUREMENTS AND MAIN RESULTS: Patient demographics, rapid response triggers, primary clinical diagnoses, illness acuity scores, medical interventions, transfers to ICU, occurrence of critical deterioration, and mortality were reviewed. We reviewed 146 patients with 309 rapid response events (146 initial rapid response and 163 repeat rapid response: 36% < 24 hr, 38% 24 hr to 7 d, and 26% > 7 d after initial rapid response). Median age was 3 years, and 60% were males. Eighty-five percentage of repeat rapid response occurred in medical complexity patients. The triggers for 71% of all repeat rapid response matched with those of initial rapid response. Transfer to ICU occurred in 69 (47%) of initial rapid response and 124 (76%) of repeat rapid response (p < 0.01). The median hospital stay was 11 and 30 days for previously healthy and medical complexity patients, respectively (p = 0.16). ICU readmission at repeat rapid response was associated with longer hospital stay (p < 0.01). Mortality during hospitalization occurred in 14% (all medically complex) of patients after repeat rapid response. Hospital mortality after rapid response is 4.4% per our center's administrative data and 6.7% according to published multicenter data. CONCLUSIONS: Prevalence of medical complexity was high in patients with repeat rapid response compared with that reported for pediatric hospitalizations. Triggers between initial and repeat rapid response events correlated. Transfer to ICU was more likely after repeat rapid response and among repeat rapid response, events with ICU readmissions had a longer length of ICU and hospital stay. Mortality for the repeat rapid response cohort was higher than that for overall rapid responses in our center and per published reports from other centers. PMID- 29329166 TI - Hematologic Manifestations of Brucellosis in Children. AB - BACKGROUND: Brucellosis is a common zoonosis in the Bedouin population of southern Israel. Limited data exist for the rate and risk factors of hematologic complication of brucellosis in children. We assessed anemia, leukopenia, thrombocytopenia and pancytopenia in childhood brucellosis in southern Israel. METHODS: Our medical center is the sole hospital in southern Israel. All medical files of brucellosis, 2005-2014, identified through positive blood cultures or International Classification of Diseases 9th revision coding with positive serology, were reviewed retrospectively. RESULTS: Overall, 511 brucellosis episodes were identified; 42% (N = 214) with >=1 cytopenia, including 13% (N = 68) anemia, 28% (N = 144) leukopenia, 14% (N = 74) thrombocytopenia and 2% (N = 9) pancytopenia. Overall, 99.8% of episodes were in Bedouin children and 70% in males. In 79% of episodes, blood culture was positive for Brucella melitensis. Acute infections comprised 84% of all episodes. In univariate analysis, older age (10.49 +/- 4.81 vs. 9.25 +/- 4.89 years), fever (92% vs. 78%), positive blood culture (84% vs. 75%) and IgM >=1:640 levels (50% vs. 39%) were associated with cytopenia. In contrast, arthralgia was associated with noncytopenic episodes. In multivariate analyses, older age (odds ratio = 1.063) and fever (odds ratio = 3.127) were associated with cytopenia. CONCLUSIONS: Brucellosis is commonly presented with cytopenia, especially in bacteremic episodes with fever. However, pancytopenia is uncommon and its finding should alert the physician to look for other possible etiologies. PMID- 29329167 TI - A Physician's Recommendation for Human Papillomavirus Vaccination: What Makes African-American Mothers Compliant? AB - BACKGROUND: Improving human papillomavirus (HPV) vaccination among African American (AA) female adolescents to reduce the cervical cancer burden is important and cost-effective. The study objective is to identify factors most influential to AA mothers' likelihood to comply with a physician's recommendation to get their daughters the HPV vaccine. METHODS: We conducted a cross-sectional survey. Participants were recruited through online and community sites (ie, schools, community centers, etc.) in Alabama. A total of 280 AA mothers and their adolescent daughters completed the survey. A binary logistic regression was used to determine factors influencing mother's likelihood to adhere with a physician's recommendation to get their daughters the HPV vaccine. RESULTS: The most significant factors influencing mother's likelihood to comply with physician's recommendation were culture: future-time orientation (P = 0.001), perceived barriers of HPV vaccination (P = 0.007), perceived susceptibility to HPV (P = 0.047) and perceived benefits of HPV vaccination (P = 0.002). Further exploration of perceived barriers and perceived benefits found mother's perception that the HPV vaccine is a good way to protect my daughter's health as the only significant benefit. No measures of perceived barriers were significant. CONCLUSIONS: A physician's recommendation should advise AA mothers on the risk of HPV and the importance of HPV vaccination at an early age to reduce cervical cancer risk. It should further address mothers' perceived disadvantages of HPV vaccination (eg, side effects). Incorporating this information in physician recommendation practices could increase HPV vaccination rates with implications in reducing the cervical cancer burden among this high-risk population. PMID- 29329168 TI - Immune Responses to Booster Vaccination With Meningococcal ABCWY Vaccine After Primary Vaccination With Either Investigational or Licensed Vaccines: A Phase 2 Randomized Study. AB - BACKGROUND: Current meningococcal prime-boost vaccination schedules include separate vaccines for serogroups ACWY and B. An investigational combined serogroups ABCWY vaccine (MenABCWY) was developed to protect against clinically important Neisseria meningitidis serogroups. METHODS: In this phase 2, randomized, observer-blind, extension study (NCT01272180), participants 10-25 years of age received 1 booster dose of MenABCWY vaccine at 24 months (M) postprimary series of MenABCWY (2 doses), 4CMenB (2 doses) or MenACWY-CRM vaccine (1 dose). Immune responses to booster dose (1M postbooster) and antibody persistence (24M, 36M postprimary series) were assessed using bactericidal assay with human complement (hSBA). Reactogenicity and safety were evaluated. RESULTS: One hundred ninety participants were vaccinated. At 1M after the MenABCWY booster dose, seroresponse rates against serogroups ACWY ranged between 85% and 96%, 73% and 100% and 83% and 95% for participants previously receiving MenABCWY, 4CMenB and MenACWY-CRM, respectively. At 12M postbooster dose, >=67% of participants across all groups had hSBA titers >=8 for serogroups ACWY, except in 4CMenB primed individuals for serogroup Y (45%). Across MenABCWY and 4CMenB-primed groups, hSBA titers >=5 across serogroup B test strains were observed in 82%-100% and 29%-100% of participants at 1M and 12M postbooster, respectively. Geometric mean titers against serogroups ACWY increased from pre- to 1M postboosting with MenABCWY and persisted at 12M. The reactogenicity and safety profile of MenABCWY was similar to that of 4CMenB. CONCLUSIONS: MenABCWY may be suitable for prime boost schedules against meningococcal disease, including regimens involving a primary series of either 4CMenB or MenACWY-CRM licensed vaccines. PMID- 29329169 TI - Differences in Immunization Site Pain in Toddlers Vaccinated With Either the 10- or the 13-Valent Pneumococcal Conjugate Vaccine. AB - BACKGROUND: Immunization site pain is a common and unpleasant experience for both children and adults. It is a source of anxiety and distress and may ultimately result in nonadherence to vaccination schedules. There is limited information on how different brands of vaccines affect the intensity of immediate pain at the time of vaccine injection. METHODS: Children in the United Kingdom (n = 178) were randomized to receive a booster dose of either the 10- or the 13-valent pneumococcal conjugate vaccine (PCV-10 or PCV-13). Immediate immunization site pain was assessed using validated pain assessment tools and crying time to investigate factors that may interfere with parental compliance to vaccination. RESULTS: Pain measurements were available for n >= 74 and n >= 78 PCV-10 and PCV 13 recipients, respectively. PCV-13 recipients had significantly higher scores on the observer-rated modified behavioral pain scale than did those receiving PCV 10. No significant differences in the induction of pain between the 2 vaccines were found when a parent-rated pain assessment tool or crying time was used. CONCLUSIONS: PCV-10 administration was associated with slightly less acute pain compared with the injection of PCV-13, but the size of the difference was small and is of unknown clinical significance. PMID- 29329170 TI - What's New in Shock, February 2018? PMID- 29329171 TI - Nonhuman Primate (Rhesus Macaque) Models of Severe Pressure-Targeted Hemorrhagic and Polytraumatic Hemorrhagic Shock. AB - BACKGROUND: We endeavored to develop clinically translatable nonhuman primate (NHP) models of severe polytraumatic hemorrhagic shock. METHODS: NHPs were randomized into five severe pressure-targeted hemorrhagic shock (PTHS) +/- additional injuries scenarios: 30-min PTHS (PTHS-30), 60-min PTHS (PTHS-60), PTHS 60 + soft tissue injury (PTHS-60+ST), PTHS-60+ST + femur fracture (PTHS 60+ST+FF), and decompensated PTHS+ST+FF (PTHS-D). Physiologic parameters were recorded and blood samples collected at five time points with animal observation through T = 24 h. Results presented as mean +/- SEM; statistics: log transformation followed by two-way ANOVA with Bonferroni multiple comparisons, Wilcoxon nonparametric test for comparisons, and the Friedmans' one-way ANOVA; significance: P < 0.05. RESULTS: Percent blood loss was 40% +/- 2, 59% +/- 3, 52% +/- 3, 49% +/- 2, and 54% +/- 2 for PTHS-30, PTHS-60, PTHS-60+ST, PTHS-60+ST+FF, and PTHS-D, respectively. All animals survived to T = 24 h except one in each of the PTHS-60 and PTHS-60+ST+FF groups and seven in the PTHS-D group. Physiologic, coagulation, and inflammatory parameters demonstrated increasing derangements with increasing model severity. CONCLUSION: NHPs exhibit a high degree of resilience to hemorrhagic shock and polytrauma as evidenced by moderate perturbations in metabolic, coagulation, and immunologic outcomes with up to 60 min of profound hypotension regardless of injury pattern. Extending the duration of PTHS to the point of decompensation in combination with polytraumatic injury, evoked derangements consistent with those observed in severely injured trauma patients which would require ICU care. Thus, we have successfully established a clinically translatable NHP trauma model for use in testing therapeutic interventions to trauma. PMID- 29329172 TI - Clinical Features and Outcomes of Post-Traumatic Silent Sinus Syndrome. AB - PURPOSE: To identify demographic features and clinical outcomes associated with post-traumatic silent sinus syndrome. METHODS: A retrospective review was carried out at 3 academic medical centers to identify all cases of post-traumatic silent sinus syndrome. Clinical features and management strategies were recorded. Postoperative outcomes were assessed, and statistical analyses were performed via a dedicated computerized software package. RESULTS: Twenty cases were identified (14 men and 6 women, mean age = 44.2 years). Seven patients underwent sinus surgery as the sole means of treatment, and the mean pre- and postoperative enophthalmos measurements were 2.86 and 1.93 mm. Alternatively, 13 patients underwent combined orbital reconstruction and sinus surgery, respectively; the mean pre- and postoperative enophthalmos measurements were 3.42 and 0.39 mm, respectively. The change in enophthalmos was statistically significantly greater in patients who underwent sinus surgery and orbital reconstruction (p = 0.00028). Among patients who underwent sinus surgery alone, one patients (14.2%) experienced complete resolution of enophthalmos, as compared with 10 patients (76.9%) who underwent combined procedures. CONCLUSIONS: This study represents the largest published cohort of patients with post-traumatic silent sinus syndrome. Combined orbital reconstruction and sinus surgery results in greater reductions of enophthalmos and a markedly improved chance of postoperative symmetry of globe position. PMID- 29329173 TI - Continuous Positive Airway Pressure Thresholds for Nasolacrimal Air Regurgitation in a Cadaveric Model. AB - PURPOSE: To elucidate the mechanisms underlying nasolacrimal air regurgitation (AR) in the setting of continuous positive airway pressure therapy. METHODS: Twelve nasolacrimal systems of 6 fresh female human cadavers were evaluated individually for AR using continuous positive airway pressure therapy before any nasolacrimal procedure. Cadavers were then randomly assigned to undergo nasolacrimal duct probing or endoscopic dacryocystorhinostomy and then each hemisystem was again evaluated for AR. The pressure where AR was first observed (discovery pressure) or maximum possible pressure in systems without AR was recorded. In systems that demonstrated AR, the pressure was then gradually decreased to the lowest pressure where regurgitation persisted. This pressure was recorded as the secondary threshold pressure. RESULTS: None of the 12 unoperated nasolacrimal systems or the 6 systems that underwent nasolacrimal duct probing demonstrated AR through the maximum continuous positive airway pressure therapy (30 cm H2O). After endoscopic dacryocystorhinostomy, all 6 nasolacrimal systems demonstrated AR. The mean discovery pressure was 16.0 cm H2O (range, 14.0-18.0 cm H2O) and mean secondary threshold pressure was 7.25 cm H2O (range, 6.5-8.0 cm H2O). CONCLUSIONS: Air regurgitation during continuous positive airway pressure therapy in the setting of prior endoscopic dacryocystorhinostomy can be replicated in a cadaver model. The secondary threshold pressures required for AR in this model were similar to AR pressures reported clinically. Prior to dacryocystorhinostomy, patients using continuous positive airway pressure therapy should be counseled on AR, and physicians should consider this phenomenon when evaluating ophthalmic complaints in postoperative patients on positive airway pressure therapy. PMID- 29329174 TI - Symmetry of Upper Eyelid Contour After Unilateral Blepharoptosis Repair With a Single-strip Frontalis Suspension Technique. AB - PURPOSE: To analyze the upper eyelid contour of patients with unilateral congenital ptosis who underwent single-strip frontalis suspension. METHODS: The authors compared the upper eyelid shape of the right and left eyes of 10 patients who underwent unilateral frontalis suspension with a single strip of autogenous fascia. At a mean postoperative time of 10.1 +/- 4.01 months, the image J software was used to measure the ratio between the nasal and temporal areas of the upper half of the palpebral fissure. The midpupil upper eyelid distance (MRD1) was also measured on the photos with the same software. The nonparametric Wilcoxon signed-rank test was used to compare the data. RESULTS: Postoperative MRD1 ranged from 2.5 to 4.7 mm (median = 3.8) on the affected side. The MRD1 for nonoperated eyelid ranged from 1.8 to 5.0 mm (median = 3.5). On the operated side, the temporal areas ranged from 50.3 to 85.7 mm (median 65.2) and nasal areas ranged from 41.5 to 72.3 (the median was 60.1). In the contralateral, nonoperated palpebral fissures, the temporal areas ranged from 42.7 to 94.3 mm (median = 54.5) and the nasal areas ranged from 36.8 to 86.1 mm (median 52.3). The T/N ratio distributions were almost identical between groups, ranging from 0.9 to 1.2 (median = 1.1) in the operated eyes and from 0.9 to 1.3 (median = 1.1) in the fellow eyes. CONCLUSIONS: In autogenous fascia frontalis suspension procedures, the upper eyelid contour of the ptotic eyelids can be adequately normalized with a single area of traction on the tarsal plate. PMID- 29329176 TI - A Cost Analysis of Gyrase A Testing and Targeted Ciprofloxacin Therapy Versus Recommended 2-Drug Therapy for Neisseria gonorrhoeae Infection. AB - BACKGROUND: Novel approaches to combating drug-resistant Neisseria gonorrhoeae infections are urgently needed. Targeted therapy with ciprofloxacin has been made possible by a rapid assay for genotyping the gyrase A (gyrA) gene; a nonmutated gene reliably predicts susceptibility to ciprofloxacin. METHODS: We determined the costs of running the gyrA assay, 500 mg of ciprofloxacin, 250 mg of ceftriaxone injection, and 1000 mg of azithromycin. Cost estimates for gyrA testing included assay reagents and labor. Cost estimates for ceftriaxone included medication, injection, administration, supplies, and equipment. We measured the cost of using the gyrA assay and treatment based on genotype using previously collected data over a 13-month period between November 2015 and November 2016 for all N. gonorrhoeae cases diagnosed at UCLA. We subsequently developed 3 cost models, varying the frequency of testing and prevalence of N. gonorrhoeae infections with ciprofloxacin-resistant or genotype-indeterminate results. We compared those estimates with the cost of recommended 2-drug therapy (ceftriaxone and azithromycin). RESULTS: Based on a 65.3% prevalence of cases with ciprofloxacin-resistant or genotype indeterminate N. gonorrhoeae infections when running an average of 1.7 tests per day, the per-case cost of gyrA genotyping and targeted therapy was US $197.19. The per-case cost was US $155.16 assuming a 52.6% prevalence of ciprofloxacin-resistant or genotype-indeterminate infections when running an average of 17 tests per day. The per-case cost of 2 drug therapy was US $142.75. CONCLUSIONS: Direct costs of gyrA genotyping and targeted ciprofloxacin therapy depend on the prevalence of ciprofloxacin resistant or genotype-indeterminate infections and testing frequency. PMID- 29329177 TI - A Comparison of Real-Time Polymerase Chain Reaction Assays for the Detection of Antimicrobial Resistance Markers and Sequence Typing From Clinical Nucleic Acid Amplification Test Samples and Matched Neisseria gonorrhoeae Culture. AB - Real-time polymerase chain reaction (PCR) assays to detect antimicrobial resistance-associated mutations were tested on Neisseria gonorrhoeae-positive clinical samples with matched isolates. Of the nucleic acid amplification tests/cultures, 87.7% (64/73), 98.6% (72/73), and 98.4% (62/63) predicted cephalosporin, ciprofloxacin, and azithromycin susceptibilities, respectively. N. gonorrhoeae multiantigen sequence type was correctly predicted for 98.7% (79/80), and 13 of 58 N. gonorrhoeae-negative specimens showed false-positive results. PMID- 29329178 TI - Chlamydia and Gonorrhea Acquisition Among Adolescents and Young Adults in Pennsylvania: A Rural and Urban Comparison. AB - Adolescent and young adult chlamydia and gonorrhea rates in rural versus urban communities of Pennsylvania were analyzed from 2004 to 2014. Higher rates of chlamydia and gonorrhea have been documented in rural youth, making them more likely to acquire to suffer adverse outcomes than youth in urban populations. PMID- 29329175 TI - Clinical Description, Molecular Analysis of TWIST2 Gene, and Surgical Treatment in a Patient With Barber-Say Syndrome. AB - Barber-Say syndrome is a rare autosomal dominant disease characterized by dysmorphic features, mainly of the eyelids and skin. It is caused by heterozygous mutations in gene TWIST2, localized in chromosome 2q37.3. The authors present the case of a pediatric patient with a clinical diagnosis of Barber-Say syndrome with ocular symptoms related to exposure keratitis. Molecular analysis of her DNA revealed a mutation on TWIST2 gene confirming the diagnosis of Barber-Say syndrome. Surgical treatment of the patient's eyelids resolved her signs and symptoms. PMID- 29329179 TI - Should Asymptomatic Men Who Have Sex With Men Be Screened for Oropharyngeal Chlamydia? Clinical Outcomes From a Cross-Sectional Study. AB - OBJECTIVE: To help inform screening guidelines, we estimated the proportion of asymptomatic men who have sex with men (MSM) with oropharyngeal chlamydia. STUDY DESIGN: An audit of asymptomatic MSM attending a sexual health service from March 2015 to April 2016 was conducted. They each had an oropharyngeal swab that was tested for Chlamydia trachomatis by transcription-mediated nucleic acid amplification. In addition, a random sample of 17 swabs that initially tested positive had confirmatory testing to determine the likelihood of true positivity. RESULTS: We collected 4877 oropharyngeal swabs: 72 (1.5%; 95% confidence interval [CI], 1.2-1.9) were diagnosed positive for chlamydia. Most (n = 56 [78%]; 95% CI, 67-86) only had oropharyngeal chlamydia detected (i.e., no concurrent extraoropharyngeal chlamydia and/or gonorrhea). Of the 17 samples that underwent confirmation, all confirmed positive (100%; 95% CI, 82-100). CONCLUSIONS: Although oropharyngeal chlamydia prevalence was low among asymptomatic MSM, most oropharyngeal chlamydia cases had no chlamydia at other sites, and these cases would have been missed and not treated if routine oropharyngeal chlamydia testing was not done. PMID- 29329180 TI - Diplopia: An Overlooked Feature in Patients With Neurosyphilis. Report of 2 Cases and Literature Review. AB - Both neurosyphilis and diplopia are widely known medical terms. Nevertheless, low clinical awareness by the physician and the often-overlooked presentation of diplopia, make the combination of neurosyphilis and diplopia rarely observed. In this article, we report 2 neurosyphilitic patients presenting with diplopia and review 8 additional case reports of neurosyphilis with diplopia, with a total of 10 cases to be analyzed. PMID- 29329181 TI - What Is the Optimal Time to Retest Patients With a Urogenital Chlamydia Infection? A Randomized Controlled Trial. AB - BACKGROUND: Chlamydia trachomatis is a common, often recurring sexually transmitted infection, with serious adverse outcomes in women. Current guidelines recommend retesting after a chlamydia infection, but the optimum timing is unknown. We assessed the optimal retest interval after urogenital chlamydia treatment. METHODS: A randomized controlled trial among urogenital chlamydia nucleic acid amplification test positive heterosexual clients of the Amsterdam sexually transmitted infection clinic. After treatment, patients were randomly assigned for retesting 8, 16, or 26 weeks later. Patients could choose to do this at home (and send a self-collected sample by mail) or at the clinic. Retest uptake and chlamydia positivity at follow-up were calculated. RESULTS: Between May 2012 and March 2013, 2253 patients were included (45% men; median age, 23 years; interquartile range, 21-26). The overall uptake proportion within 35 weeks after the initial visit was significantly higher in the 8-week group (77%) compared with the 16- and 26-week groups (67% and 64%, respectively, P < 0.001), and the positivity proportions among those retested were comparable (P = 0.169). The proportion of people with a diagnosed recurrent chlamydia infection among all randomized was similar between the groups (n = 69 [8.6%], n = 52 [7.4%], and n = 69 [9.3%]; P = 0.4). CONCLUSIONS: Patients with a recent urogenital chlamydia are at high risk of recurrence of chlamydia and retesting them is an effective way of detecting chlamydia cases. We recommend inviting patients for a re-test 8 weeks after the initial diagnosis and treatment. PMID- 29329182 TI - Rapid Increase in Gonorrhea Cases With Reduced Susceptibility to Azithromycin in Columbus, Ohio. PMID- 29329183 TI - Hepatitis E Virus Infection in Kidney Transplant Patients: A Single-Center Study. PMID- 29329184 TI - Listening to Living Donors. PMID- 29329186 TI - High-Sensitivity Troponins in Liver Transplantation: How Will They Change Our Practice? PMID- 29329185 TI - Vasodilation During Normothermic Machine Perfusion; Preventing the No-Reflow Phenomena. PMID- 29329187 TI - Deceased Donor Organ Transplantation Performed in the United States for Noncitizens and Nonresidents. AB - Since 2012, the Organ Procurement and Transplantation Network (OPTN)/United Network for Organ Sharing (UNOS) has required transplant centers to record the citizenship residency status of patients undergoing transplantation in the United States. This policy replaced the 5% threshold of the non-US citizen/nonresidents (NC/NR) undergoing organ transplantation that could result in an audit of transplant center activity. Since April 1, 2015, the country of residence for the NC/NR on the waitlist has also been recorded. We analyzed the frequency of NC/NR deceased donor organ transplants and waitlist registrations at all US transplant centers by data provided by UNOS for that purpose to the UNOS Ad Hoc International Relations Committee. During the period of 2013 to 2016, 1176 deceased donor transplants (of all organs) were performed in non-US citizen/non US resident (NC/NR) candidates (0.54% of the total number of transplants). We focused on high-volume NC/NR transplant centers that performed more than 5% of the deceased donor kidney or liver transplants in NC/NR or whose waitlist registrants exceeded 5% NC/NR. This report was prepared to fulfill the transparency policy of UNOS to assure a public trust in the distribution of organs. When viewed with a public awareness of deceased donor organ shortages, it suggests the need for a more comprehensive understanding of current NC/NR activity in the United States. Patterns of organ specific NC/NR registrations and transplantations at high-volume centers should prompt a review of transplant center practices to determine whether the deceased donor and center resources may be compromised for their US patients. PMID- 29329188 TI - The Impact of Combined Warm Ischemia Time on Development of Acute Kidney Injury in Donation After Circulatory Death Liver Transplantation: Stay Within the Golden Hour. AB - BACKGROUND: Acute kidney injury (AKI) is a common complication after liver transplantation and more frequently observed when high-risk grafts, such as donation after circulatory death (DCD) grafts are used. Our aim was to investigate the impact of the ischemia periods on development of AKI in DCD liver transplantation. METHODS: We performed a 2-center retrospective study with 368 DCD graft-recipients. Donor warm ischemia time (DWIT) was divided into agonal phase (withdrawal of life support-cardiac arrest) and asystolic phase (cardiac arrest-start cold perfusion). We introduced a new period of warm ischemia: the combined warm ischemia time (combined WIT), which was defined as the sum of DWIT and recipient WIT. RESULTS: AKI was observed in 65% of the recipients and severe AKI in 41% (KDIGO stage 2/3). The length of combined WIT increased significantly with AKI severity: 61 minutes in recipients without AKI up to 69 minutes in recipients with the most severe form of AKI (P < 0.001). On multivariable analysis, increasing duration of the combined WIT was associated with an increased risk of developing severe AKI (odds ratio, 1.032 per every extra minute; 95% confidence interval, 1.014-1.051; P < 0.001). No relation was observed between length of cold ischemia time and severe AKI. CONCLUSIONS: Combined WIT is a newly defined period of warm ischemia in DCD liver transplantation. Length of combined WIT is associated with severity of postoperative AKI and should ideally not exceed 60 minutes. PMID- 29329189 TI - Beta Cell Death by Cell-free DNA and Outcome After Clinical Islet Transplantation. AB - BACKGROUND: Optimizing engraftment and early survival after clinical islet transplantation is critical to long-term function, but there are no reliable, quantifiable measures to assess beta cell death. Circulating cell-free DNA (cfDNA) derived from beta cells has been identified as a novel biomarker to detect cell loss and was recently validated in new-onset type 1 diabetes and in islet transplant patients. METHODS: Herein we report beta cell cfDNA measurements after allotransplantation in 37 subjects and the correlation with clinical outcomes. RESULTS: A distinctive peak of cfDNA was observed 1 hour after transplantation in 31 (83.8%) of 37 subjects. The presence and magnitude of this signal did not correlate with transplant outcome. The 1-hour signal represents dead beta cells carried over into the recipient after islet isolation and culture, combined with acute cell death post infusion. Beta cell cfDNA was also detected 24 hours posttransplant (8/37 subjects, 21.6%). This signal was associated with higher 1-month insulin requirements (P = 0.04), lower 1-month stimulated C-peptide levels (P = 0.01), and overall worse 3-month engraftment, by insulin independence (receiver operating characteristic-area under the curve = 0.70, P = 0.03) and beta 2 score (receiver operating characteristic-area under the curve = 0.77, P = 0.006). CONCLUSIONS: cfDNA-based estimation of beta cell death 24 hours after islet allotransplantation correlates with clinical outcome and could predict early engraftment. PMID- 29329191 TI - Income Disparities in the Prevalence, Severity, and Costs of Co-occurring Chronic and Behavioral Health Conditions. AB - BACKGROUND: Behavioral health problems usually co-occur along with physical health problems, resulting in higher health care costs. These co-occurring conditions are likely to be more prevalent and serious among low income patients, affecting both the quality and costs of care. OBJECTIVE: To examine the prevalence, severity, and health care costs of co-occurring chronic and behavioral health conditions among low income people compared with higher income people. METHODS: Analysis of the 2011-2014 Medical Expenditure Panel Survey. Sample includes 146,000 persons aged 18-64 years. Regression analysis was used to examine how the combination of behavioral health conditions and chronic health conditions is associated with health care expenditures, and how this association differs by family income. RESULTS: (1) Comorbid behavioral health problems are more prevalent and serious among low income people with chronic conditions compared with higher income people; (2) among patients with co-occurring chronic and behavioral problems, average annual spending is greater among the low income patients ($9472) compared with high income patients ($7457); (3) higher costs among low income patients with co-occurring conditions reflects their poorer mental and physical health, relative to higher income patients. CONCLUSIONS: For many low income people, comorbid behavioral problems need to be understood in the social context in which they live. Simply screening low income people for behavioral health problems may not be sufficient unless there is greater understanding of the mechanisms that both cause and exacerbate chronic and behavioral health problems in the low income population. PMID- 29329193 TI - Mustn1: A Developmentally Regulated Pan-Musculoskeletal Cell Marker and Regulatory Gene. AB - The Mustn1 gene encodes a small nuclear protein (~9.6 kDa) that does not belong to any known family. Its genomic organization consists of three exons interspersed by two introns and it is highly homologous across vertebrate species. Promoter analyses revealed that its expression is regulated by the AP family of transcription factors, especially c-Fos, Fra-2 and JunD. Mustn1 is predominantly expressed in the major tissues of the musculoskeletal system: bone, cartilage, skeletal muscle and tendon. Its expression has been associated with normal embryonic development, postnatal growth, exercise, and regeneration of bone and skeletal muscle. Moreover, its expression has also been detected in various musculoskeletal pathologies, including arthritis, Duchenne muscular dystrophy, other skeletal muscle myopathies, clubfoot and diabetes associated muscle pathology. In vitro and in vivo functional perturbation revealed that Mustn1 is a key regulatory molecule in myogenic and chondrogenic lineages. This comprehensive review summarizes our current knowledge of Mustn1 and proposes that it is a new developmentally regulated pan-musculoskeletal marker as well as a key regulatory protein for cell differentiation and tissue growth. PMID- 29329195 TI - Dietary Antioxidants and Health Promotion. AB - Accumulating scientific evidence suggests that over-production of reactive oxygen species (ROS) may be the root cause of chronic diseases such as cancer, cardiovascular diseases, neurodegeneration, and ageing per se [1,2].[...]. PMID- 29329196 TI - Is the Skin Absorption of Hydrocortisone Modified by the Variability in Dosing Topical Products? AB - Fingertip units have been proposed as a tool to standardize topical therapy with semisolid formulations. However, no studies to date have characterized the variability in dosing by patients using this concept and whether this variability ultimately affects the topical absorption of drugs. This work aimed to answer these two questions. A first study determined the dose measured, the area of spread and the area-normalized dose for a 1% hydrocortisone cream and ointment applied by members of the public using this dosing approach before and after brief counselling. Then, in vivo tape-stripping and in vitro permeation studies investigated whether the variability in the area-normalized dose altered the skin absorption of hydrocortisone. Participants applied greater doses and spread them over larger areas after a short counselling intervention leading to smaller area normalized doses. In vivo hydrocortisone uptake by the stratum corneum was significantly greater for the higher normalized dose and the differences were further supported by the in vitro permeation studies. However, these differences were relatively small and not proportional to the increase in normalized dose. This work shows that, following brief advice, patients and carers can apply consistent and sufficient doses of corticosteroids whilst minimizing risks and variability in hydrocortisone absorption. PMID- 29329197 TI - Long-Term Functional Outcome of Surgical Treatment for Thoracic Outlet Syndrome. AB - First rib resection for thoracic outlet syndrome (TOS) is clinically successful and safe in most patients. However, long-term functional outcomes are still insufficiently known. Long-term functional outcome was assessed using a validated questionnaire. A multicenter retrospective cohort study including all patients who underwent operations for TOS from January 2005 until December 2016. Clinical records were reviewed and the long-term functional outcome was assessed by the 11 item version of the Disability of the Arm, Shoulder, and Hand (QuickDASH) questionnaire. Sixty-two cases of TOS in 56 patients were analyzed: 36 neurogenic TOS, 13 arterial TOS, 7 venous TOS, and 6 combined TOS. There was no 30-day mortality. One reoperation because of bleeding was performed and five patients developed a pneumothorax. Survey response was 73% (n = 41) with a follow-up ranging from 1 to 11 years. Complete relief of symptoms was reported postoperatively in 27 patients (54%), symptoms improved in 90%, and the mean QuickDASH score was 22 (range, 0-86). Long-term functional outcome of surgical treatment of TOS was satisfactory, and surgery was beneficial in 90% of patients, with a low risk of severe morbidity. However, the mean QuickDASH scores remain higher compared with the general population, suggesting some sustained functional impairment despite clinical improvement of symptoms. PMID- 29329199 TI - Pressure Induced Densification and Compression in a Reprocessed Borosilicate Glass. AB - Pressure induced densification and compression of a reprocessed sample of borosilicate glass has been studied by X-ray radiography and energy dispersive X ray diffraction using a Paris-Edinburgh (PE) press at a synchrotron X-ray source. The reprocessing of a commercial borosilicate glass was carried out by cyclical melting and cooling. Gold foil pressure markers were used to obtain the sample pressure by X-ray diffraction using its known equation of state, while X-ray radiography provided a direct measure of the sample volume at high pressure. The X-ray radiography method for volume measurements at high pressures was validated for a known sample of pure alpha-Iron to 6.3 GPa. A sample of reprocessed borosilicate glass was compressed to 11.4 GPa using the PE cell, and the flotation density of pressure recovered sample was measured to be 2.755 gm/cc, showing an increase in density of 24%, as compared to the starting sample. The initial compression of the reprocessed borosilicate glass measured by X-ray radiography resulted in a bulk modulus of 30.3 GPa in good agreement with the 32.9 GPa value derived from the known elastic constants. This method can be applied to variety of amorphous materials under high pressures. PMID- 29329201 TI - Population Reference Values for Serum Methylmalonic Acid Concentrations and Its Relationship with Age, Sex, Race-Ethnicity, Supplement Use, Kidney Function and Serum Vitamin B12 in the Post-Folic Acid Fortification Period. AB - Serum methylmalonic acid (MMA) is elevated in vitamin B-12 deficiency and in kidney dysfunction. Population reference values for serum MMA concentrations in post-folic acid fortification period are lacking. Aims of this study were to report the population reference values for serum MMA and to evaluate the relation between serum MMA and sex, age, race-ethnicity, kidney dysfunction and vitamin B 12. We used data from three National Health and Nutrition Examination Surveys, 1999-2000, 2001-2002 and 2003-2004 conducted after folic acid fortification commenced (n = 18,569). Geometric mean MMA was ~22.3% higher in non-Hispanic white compared to non-Hispanic black (141.2 vs. 115.5 nmol/L) and was ~62.7% higher in >70 years old persons compared to 21-30 years old persons (196.9 vs. 121.0 nmol/L). Median serum MMA was ~28.5% higher in the 1st the quartile of serum vitamin B-12 than in the 4th quartile of serum vitamin B-12 and was ~35.8% higher in the 4th quartile of serum creatinine than in the 1st quartile of serum creatinine. Multivariate-adjusted serum MMA concentration was significantly associated with race-ethnicity (p < 0.001) and age (p < 0.001) but not with sex (p = 0.057). In this large US population based study, serum MMA concentrations presented here reflect the post-folic acid fortification scenario. Serum MMA concentrations begin to rise at the age of 18-20 years and continue to rise afterwards. Age-related increase in serum MMA concentration is likely to be due to a concomitant decline in kidney function and vitamin B-12 status. PMID- 29329203 TI - Thermoelectric Mixed Thick-/Thin Film Microgenerators Based on Constantan/Silver. AB - This paper describes the design, manufacturing and characterization of newly developed mixed thick-/thin film thermoelectric microgenerators based on magnetron sputtered constantan (copper-nickel alloy) and screen-printed silver layers. The thermoelectric microgenerator consists of sixteen thermocouples made on a 34.2 * 27.5 * 0.25 mm3 alumina substrate. One of thermocouple arms was made of magnetron-sputtered constantan (Cu-Ni alloy), the second was a Ag-based screen printed film. The length of each thermocouple arm was equal to 27 mm, and their width 0.3 mm. The distance between the arms was equal to 0.3 mm. In the first step, a pattern mask with thermocouples was designed and fabricated. Then, a constantan layer was magnetron sputtered over the whole substrate, and a photolithography process was used to prepare the first thermocouple arms. The second arms were screen-printed onto the substrate using a low-temperature silver paste (Heraeus C8829A or ElectroScience Laboratories ESL 599-E). To avoid oxidation of constantan, they were fired in a belt furnace in a nitrogen atmosphere at 550/450 degrees C peak firing temperature. Thermoelectric and electrical measurements were performed using the self-made measuring system. Two pyrometers included into the system were used for temperature measurement of hot and cold junctions. The estimated Seebeck coefficient, alpha was from the range 35 - 41 uV/K, whereas the total internal resistances R were between 250 and 3200 ohms, depending on magnetron sputtering time and kind of silver ink (the resistance of a single thermocouple was between 15.5 and 200 ohms). PMID- 29329205 TI - Improving Odometric Accuracy for an Autonomous Electric Cart. AB - In this paper, a study of the odometric system for the autonomous cart Verdino, which is an electric vehicle based on a golf cart, is presented. A mathematical model of the odometric system is derived from cart movement equations, and is used to compute the vehicle position and orientation. The inputs of the system are the odometry encoders, and the model uses the wheels diameter and distance between wheels as parameters. With this model, a least square minimization is made in order to get the nominal best parameters. This model is updated, including a real time wheel diameter measurement improving the accuracy of the results. A neural network model is used in order to learn the odometric model from data. Tests are made using this neural network in several configurations and the results are compared to the mathematical model, showing that the neural network can outperform the first proposed model. PMID- 29329202 TI - EpCAM Immunotherapy versus Specific Targeted Delivery of Drugs. AB - The epithelial cell adhesion molecule (EpCAM), or CD326, was one of the first cancer associated biomarkers to be discovered. In the last forty years, this biomarker has been investigated for use in personalized cancer therapy, with the first monoclonal antibody, edrecolomab, being trialled in humans more than thirty years ago. Since then, several other monoclonal antibodies have been raised to EpCAM and tested in clinical trials. However, while monoclonal antibody therapy has been investigated against EpCAM for almost 40 years as primary or adjuvant therapy, it has not shown as much promise as initially heralded. In this review, we look at the reasons why and consider alternative targeting options, such as aptamers, to turn this almost ubiquitously expressed epithelial cancer biomarker into a viable target for future personalized therapy. PMID- 29329204 TI - Lipid-Lowering Polyketides from the Fungus Penicillium Steckii HDN13-279. AB - Seven new polyketides, named tanzawaic acids R-X (1-6, 11), along with seven known analogues (7-10 and 12-14), were isolated from Penicillium steckii HDN13 279. Their structures, including the absolute configurations, were elucidated by NMR, MS, X-ray diffraction, circular dichroism (CD) analyses and chemical derivatization. Five compounds (2, 3, 6, 10 and 12) significantly decreased the oleic acid (OA)-elicited lipid accumulation in HepG2 liver cells at the concentration of 10 MUM, among which, four compounds (3, 6, 10 and 12) significantly decreased intracellular total cholesterol (TC) levels and three Compounds (3, 6, and 10) significantly decreased intracellular triglyceride (TG) levels. Moreover, the TG-lowering capacities of compounds 6 and 10 were comparable with those of simvastatin, with the TG levels being nearly equal to blank control. This is the first report on the lipid-lowering activity of tanzawaic acid derivatives. PMID- 29329206 TI - Preparation of Cu2O-Reduced Graphene Nanocomposite Modified Electrodes towards Ultrasensitive Dopamine Detection. AB - Cu2O-reduced graphene oxide nanocomposite (Cu2O-RGO) was used to modify glassy carbon electrodes (GCE), and applied for the determination of dopamine (DA). The microstructure of Cu2O-RGO nanocomposite material was characterized by scanning electron microscope. Then the electrochemical reduction condition for preparing Cu2O-RGO/GCE and experimental conditions for determining DA were further optimized. The electrochemical behaviors of DA on the bare electrode, RGO- and Cu2O-RGO-modified electrodes were also investigated using cyclic voltammetry in phosphate-buffered saline solution (PBS, pH 3.5). The results show that the oxidation peaks of ascorbic acid (AA), dopamine (DA), and uric acid (UA) could be well separated and the peak-to-peak separations are 204 mV (AA-DA) and 144 mV (DA UA), respectively. Moreover, the linear response ranges for the determination of 1 * 10-8 mol/L~1 * 10-6 mol/L and 1 * 10-6 mol/L~8 * 10-5 mol/L with the detection limit 6.0 * 10-9 mol/L (S/N = 3). The proposed Cu2O-RGO/GCE was further applied to the determination of DA in dopamine hydrochloride injections with satisfactory results. PMID- 29329207 TI - Arnica Tincture Cures Cutaneous Leishmaniasis in Golden Hamsters. AB - In search for potential therapeutic alternatives to existing treatments for cutaneous Leishmaniasis, we have investigated the effect of Arnica tincture Ph. Eur. (a 70% hydroethanolic tincture prepared from flowerheads of Arnica montana L.) on the lesions caused by infection with Leishmania braziliensis in a model with golden hamsters. The animals were treated topically with a daily single dose of the preparation for 28 days. Subsequently, the healing process was monitored by recording the lesion size in intervals of 15 days up to day 90. As a result, Arnica tincture fully cured three out of five hamsters while one animal showed an improvement and another one suffered from a relapse. This result was slightly better than that obtained with the positive control, meglumine antimonate, which cured two of five hamsters while the other three showed a relapse after 90 days. This result encourages us to further investigate the potential of Arnica tincture in the treatment of cutaneous Leishmaniasis. PMID- 29329208 TI - Advances in Molecular Profiling and Categorisation of Pancreatic Adenocarcinoma and the Implications for Therapy. AB - Pancreatic ductal adenocarcinoma (PDAC) continues to be a disease with poor outcomes and short-lived treatment responses. New information is emerging from genome sequencing identifying potential subgroups based on somatic and germline mutations. A variety of different mutations and mutational signatures have been identified; the driver mutation in around 93% of PDAC is KRAS, with other recorded alterations being SMAD4 and CDKN2A. Mutations in the deoxyribonucleic acid (DNA) damage repair pathway have also been investigated in PDAC and multiple clinical trials are ongoing with DNA-damaging agents. Rare mutations in BRAF and microsatellite instability (MSI) have been reported in about 1-3% of patients with PDAC, and agents used in other cancers to target these have also shown some promise. Immunotherapy is a developing field, but has failed to demonstrate benefits in PDAC to date. While many trials have failed to improve outcomes in this deadly disease, there is optimism that by developing a better understanding of the translational aspects of this cancer, future informed therapeutic strategies may prove more successful. PMID- 29329210 TI - An Over 90 dB Intra-Scene Single-Exposure Dynamic Range CMOS Image Sensor Using a 3.0 MUm Triple-Gain Pixel Fabricated in a Standard BSI Process. AB - To respond to the high demand for high dynamic range imaging suitable for moving objects with few artifacts, we have developed a single-exposure dynamic range image sensor by introducing a triple-gain pixel and a low noise dual-gain readout circuit. The developed 3 MUm pixel is capable of having three conversion gains. Introducing a new split-pinned photodiode structure, linear full well reaches 40 ke-. Readout noise under the highest pixel gain condition is 1 e- with a low noise readout circuit. Merging two signals, one with high pixel gain and high analog gain, and the other with low pixel gain and low analog gain, a single exposure dynamic rage (SEHDR) signal is obtained. Using this technology, a 1/2.7", 2M-pixel CMOS image sensor has been developed and characterized. The image sensor also employs an on-chip linearization function, yielding a 16-bit linear signal at 60 fps, and an intra-scene dynamic range of higher than 90 dB was successfully demonstrated. This SEHDR approach inherently mitigates the artifacts from moving objects or time-varying light sources that can appear in the multiple exposure high dynamic range (MEHDR) approach. PMID- 29329209 TI - Gentamicin Sulfate PEG-PLGA/PLGA-H Nanoparticles: Screening Design and Antimicrobial Effect Evaluation toward Clinic Bacterial Isolates. AB - Nanotechnology is a promising approach both for restoring or enhancing activity of old and conventional antimicrobial agents and for treating intracellular infections by providing intracellular targeting and sustained release of drug inside infected cells. The present paper introduces a formulation study of gentamicin loaded biodegradable nanoparticles (Nps). Solid-oil-in water technique was studied for gentamicin sulfate nanoencapsulation using uncapped Polylactide co-glycolide (PLGA-H) and Polylactide-co-glycolide-co-Polyethylenglycol (PLGA PEG) blends. Screening design was applied to optimize: drug payload, Nps size and size distribution, stability and resuspendability after freeze-drying. PLGA-PEG concentration resulted most significant factor influencing particles size and drug content (DC): 8 w/w% DC and 200 nm Nps were obtained. Stirring rate resulted most influencing factor for size distribution (PDI): 700 rpm permitted to obtain homogeneous Nps dispersion (PDI = 1). Further experimental parameters investigated, by 23 screening design, were: polymer blend composition (PLGA-PEG and PLGA-H), Polyvinylalcohol (PVA) and methanol concentrations into aqueous phase. Drug content was increased to 10.5 w/w%. Nanoparticle lyophilization was studied adding cryoprotectants, polyvinypirrolidone K17 and K32, and sodiumcarboxymetylcellulose. Freeze-drying protocol was optimized by a mixture design. A freeze-dried Nps powder free resuspendable with stable Nps size and payload, was developed. The powder was tested on clinic bacterial isolates demonstrating that after encapsulation, gentamicin sulfate kept its activity. PMID- 29329211 TI - Causation of Acute Flaccid Paralysis by Myelitis and Myositis in Enterovirus-D68 Infected Mice Deficient in Interferon alphabeta/gamma Receptor Deficient Mice. AB - Enterovirus D68 (EV-D68) caused a large outbreak in the summer and fall of 2014 in the United States. It causes serious respiratory disease, but causation of associated paralysis is controversial, because the virus is not routinely identified in cerebrospinal fluid. To establish clinical correlates with human disease, we evaluated EV-D68 infection in non-lethal paralysis mouse models. Ten day-old mice lacking interferon responses were injected intraperitoneally with the virus. Paralysis developed in hindlimbs. After six weeks of paralysis, the motor neurons were depleted due to viral infection. Hindlimb muscles were also infected and degenerating. Even at the earliest stage of paralysis, muscles were still infected and were degenerating, in addition to presence of virus in the spinal cord. To model natural respiratory infection, five-day-old mice were infected intranasally with EV-D68. Two of the four infected mice developed forelimb paralysis. The affected limbs had muscle disease, but no spinal cord infection was detected. The unique contributions of this study are that EV-D68 causes paralysis in mice, and that causation by muscle disease, with or without spinal cord disease, may help to resolve the controversy that the virus can cause paralysis, even if it cannot be identified in cerebrospinal fluid. PMID- 29329212 TI - Study of the Thermal Properties and the Fire Performance of Flame Retardant Organic PCM in Bulk Form. AB - The implementation of organic phase change materials (PCMs) in several applications such as heating and cooling or building comfort is an important target in thermal energy storage (TES). However, one of the major drawbacks of organic PCMs implementation is flammability. The addition of flame retardants to PCMs or shape-stabilized PCMs is one of the approaches to address this problem and improve their final deployment in the building material sector. In this study, the most common organic PCM, Paraffin RT-21, and fatty acids mixtures of capric acid (CA), myristic acid (MA), and palmitic acid (PA) in bulk, were tested to improve their fire reaction. Several flame retardants, such as ammonium phosphate, melamine phosphate, hydromagnesite, magnesium hydroxide, and aluminum hydroxide, were tested. The properties of the improved PCM with flame retardants were characterized by thermogravimetric analyses (TGA), the dripping test, and differential scanning calorimetry (DSC). The results for the dripping test show that fire retardancy was considerably enhanced by the addition of hydromagnesite (50 wt %) and magnesium hydroxide (50 wt %) in fatty acids mixtures. This will help the final implementation of these enhanced PCMs in building sector. The influence of the addition of flame retardants on the melting enthalpy and temperatures of PCMs has been evaluated. PMID- 29329213 TI - A Cross-Sectional Study of the Association between Infant Hepatitis B Vaccine Exposure in Boys and the Risk of Adverse Effects as Measured by Receipt of Special Education Services. AB - The National Center for Education Statistics reported that between 1990-2005 the number of children receiving special education services (SES) rose significantly, and then, from 2004-2012, the number declined significantly. This coincided with the introduction of Thimerosal-containing hepatitis B vaccine in 1991, and the subsequent introduction of Thimerosal-reduced hepatitis B vaccine in the early 2000s. This study examined the potential relationship between infant exposure to mercury from three doses of Thimerosal-containing hepatitis B vaccine and the risk of boys being adversely affected (as measured by receipt of SES). This cross sectional study examined 1192 boys (weighted n = 24,537,123) 7-8 years of age (born: 1994-2007) from the combined 2001-2014 National Health and Nutritional Examination Survey (NHANES). Survey logistic regression modeling revealed that an exposed population receiving three doses of infant Thimerosal-containing hepatitis B vaccine (weighted n = 11,186,579), in comparison to an unexposed population (weighted n = 704,254), were at an increased risk of receipt of SES. This association was robust (crude odds ratio = 10.143, p = 0.0232), even when considering covariates, such as race and socioeconomic status (adjusted odds ratio = 9.234, p = 0.0259). Survey frequency modeling revealed that receipt of SES for the population that was exposed to three doses of Thimerosal-containing hepatitis B vaccine in infancy (12.91%) was significantly higher than the unexposed population (1.44%) (prevalence ratio = 8.96, p = 0.006, prevalence attributable rate = 0.1147). Despite the limitation of this cross-sectional study not being able to ascribe a direct cause-and-effect relationship between exposure and outcome, it is estimated that an additional 1.2 million boys received SES with excess education costs of about United States (US) $180 billion associated with exposure to Thimerosal-containing hepatitis B vaccine. By contrast, exposure to Thimerosal-reduced hepatitis B vaccine was not associated with an increased risk of receiving SES. Therefore, routine childhood vaccination is important to reduce the morbidity and mortality of infectious diseases, but every effort should be made to eliminate Thimerosal from all vaccines. PMID- 29329214 TI - Analysis of Emission Effects Related to Drivers' Compliance Rates for Cooperative Vehicle-Infrastructure System at Signalized Intersections. AB - Unknown remaining time of signal phase at a signalized intersection generally results in extra accelerations and decelerations that increase variations of operating conditions and thus emissions. A cooperative vehicle-infrastructure system can reduce unnecessary speed changes by establishing communications between vehicles and the signal infrastructure. However, the environmental benefits largely depend on drivers' compliance behaviors. To quantify the effects of drivers' compliance rates on emissions, this study applied VISSIM 5.20 (Planung Transport Verkehr AG, Karlsruhe, Germany) to develop a simulation model for a signalized intersection, in which light duty vehicles were equipped with a cooperative vehicle-infrastructure system. A vehicle-specific power (VSP)-based model was used to estimate emissions. Based on simulation data, the effects of different compliance rates on VSP distributions, emission factors, and total emissions were analyzed. The results show the higher compliance rate decreases the proportion of VSP bin = 0, which means that the frequencies of braking and idling were lower and light duty vehicles ran more smoothly at the intersection if more light duty vehicles complied with the cooperative vehicle-infrastructure system, and emission factors for light duty vehicles decreased significantly as the compliance rate increased. The case study shows higher total emission reductions were observed with higher compliance rate for all of CO2, NOx, HC, and CO emissions. CO2 was reduced most significantly, decreased by 16% and 22% with compliance rates of 0.3 and 0.7, respectively. PMID- 29329216 TI - An Introduction to Integrative Genomics and Systems Medicine in Cancer. AB - In this Special Issue (SI), with a theme of "Integrative Genomics and Systems Medicine in Cancer", we have collected a total of 12 research and review articles from researchers in the field of genomics and systems medicine[...]. PMID- 29329217 TI - Prey Acceptability and Preference of Oenopia conglobata (Coleoptera: Coccinellidae), a Candidate for Biological Control in Urban Green Areas. AB - Oenopia conglobata is one of the most common ladybird species in urban green areas of the Mediterranean region. We have obtained data about its prey acceptability and prey preferences. In a laboratory experiment, we investigated the acceptability of seven aphid and one psyllid species as prey for this coccinellid: the aphids Chaitophorus populeti, Aphis gossypii, Aphis craccivoraMonelliopsis caryae, Eucallipterus tiliae, Aphis nerii (on white poplar, pomegranate, false acacia, black walnut, lime, and oleander, respectively), and the psyllid Acizziajamatonica on Persian silk tree. These species are abundant in urban green areas in the Mediterranean region. In addition, we tested the acceptability of Rhopalosiphum padi on barley, an aphid species easily reared in the laboratory. We also tested preferences of the predator in cafeteria experiments with three aphid species and one aphid and the psyllid. Adults and larvae of the coccinellid accepted all of the preys offered, except A. nerii, with a clear preference for M. caryae. The predator also showed preference for M. caryae when it was offered in a cafeteria experiment with other aphid species or with the psyllid. The aphid R. padi obtained a good acceptability and could be used for rearing O. conglobata in the laboratory. PMID- 29329215 TI - Dietary Supplement of Large Yellow Tea Ameliorates Metabolic Syndrome and Attenuates Hepatic Steatosis in db/db Mice. AB - Yellow tea has been widely recognized for its health benefits. However, its effects and mechanism are largely unknown. The current study investigated the mechanism of dietary supplements of large yellow tea and its effects on metabolic syndrome and the hepatic steatosis in male db/db mice. Our data showed that dietary supplements of large yellow tea and water extract significantly reduced water intake and food consumption, lowered the serum total and low-density lipoprotein cholesterol and triglyceride levels, and significantly reduced blood glucose level and increased glucose tolerance in db/db mice when compared to untreated db/db mice. In addition, the dietary supplement of large yellow tea prevented the fatty liver formation and restored the normal hepatic structure of db/db mice. Furthermore, the dietary supplement of large yellow tea obviously reduced the lipid synthesis related to gene fatty acid synthase, the sterol regulatory element-binding transcription factor 1 and acetyl-CoA carboxylase alpha, as well as fatty acid synthase and sterol response element-binding protein 1 expression, while the lipid catabolic genes were not altered in the liver of db/db mice. This study substantiated that the dietary supplement of large yellow tea has potential as a food additive for ameliorating type 2 diabetes-associated symptoms. PMID- 29329218 TI - Molecular and Physiological Effects on the Small Intestine of Weaner Pigs Following Feeding with Deoxynivalenol-Contaminated Feed. AB - We intended to assess how exposure of piglets to deoxynivalenol (DON) contaminated feed impacted their growth, immune response and gut development. Piglets were fed traditional Phase I, Phase II and Phase III diets with the control group receiving 0.20-0.40 ppm DON (referred to as the Control group) and treatment group receiving much higher level of DON-contaminated wheat (3.30-3.80 ppm; referred to as DON-contaminated group). Feeding a DON-contaminated diet had no impact on average daily feed intake (ADFI) (p < 0.08) or average daily gain (ADG) (p > 0.10) but it did significantly reduce body weight over time relative to the control piglets (p < 0.05). Cytokine analysis after initial exposure to the DON-contaminated feed did not result in significant differences in serum interleukin (IL) IL1beta, IL-8, IL-13, tumor necrosis factor (TNF)-alpha or interferon (IFN)-gamma. After day 24, no obvious changes in jejunum or ileum gut morphology, histology or changes in gene expression for IL-1beta, IL-6, IL-10, TNFalpha, or Toll-like receptor (TLR)-4 genes. IL-8 showed a trend towards increased expression in the ileum in DON-fed piglets. A significant increase in gene expression for claudin (CLDN) 7 gene expression and a trend towards increased CLDN 2-expression was observed in the ileum in piglets fed the highly DON-contaminated wheat. Because CLDN localization was not negatively affected, we believe that it is unlikely that gut permeability was affected. Exposure to DON contaminated feed did not significantly impact weaner piglet performance or gut physiology. PMID- 29329219 TI - Modification of Boc-Protected CAN508 via Acylation and Suzuki-Miyaura Coupling. AB - The cyclin-dependent kinase inhibitor, CAN508, was protected with di-tert-butyl dicarbonate to access the amino-benzoylated pyrazoles. The bromo derivatives were further arylated by Suzuki-Miyaura coupling using the XPhos Pd G2 pre-catalyst. The coupling reaction provided generally the para-substituted benzoylpyrazoles in the higher yields than the meta-substituted ones. The Boc groups were only utilized as directing functionalities for the benzoylation step and were hydrolyzed under conditions of Suzuki-Miyaura coupling, which allowed for elimination of the additional deprotection step. PMID- 29329220 TI - Electrostatic Deposition of Large-Surface Graphene. AB - This work describes a method for electrostatic deposition of graphene over a large area using controlled electrostatic exfoliation from a Highly Ordered Pyrolytic Graphite (HOPG) block. Deposition over 130 * 130 um2 with 96% coverage is achieved, which contrasts with sporadic micro-scale depositions of graphene with little control from previous works on electrostatic deposition. The deposition results are studied by Raman micro-spectroscopy and hyperspectral analysis using large fields of view to allow for the characterization of the whole deposition area. Results confirm that laser pre-patterning of the HOPG block prior to cleaving generates anchor points favoring a more homogeneous and defect-free HOPG surface, yielding larger and more uniform graphene depositions. We also demonstrate that a second patterning of the HOPG block just before exfoliation can yield features with precisely controlled geometries. PMID- 29329221 TI - High-Temperature Sensor Based on Fabry-Perot Interferometer in Microfiber Tip. AB - A miniaturized tip Fabry-Perot interferometer (tip-FPI) is proposed for high temperature sensing. It is simply fabricated for the first time by splicing a short length of microfiber (MF) to the cleaved end of a standard single mode fiber (SMF) with precise control of the relative cross section position. Such a MF acts as a Fabry-Perot (FP) cavity and serves as a tip sensor. A change in temperature modifies the length and refractive index of the FP cavity, and then a corresponding change in the reflected interference spectrum can be observed. High temperatures of up to 1000 degrees C are measured in the experiments, and a high sensitivity of 13.6 pm/ degrees C is achieved. This compact sensor, with tip diameter and length both of tens of microns, is suitable for localized detection, especially in harsh environments. PMID- 29329222 TI - The Influence of EGFR Inactivation on the Radiation Response in High Grade Glioma. AB - Lack of effectiveness of radiation therapy may arise from different factors such as radiation induced receptor tyrosine kinase activation and cell repopulation; cell capability to repair radiation induced DNA damage; high grade glioma (HGG) tumous heterogeneity, etc. In this study, we analyzed the potential of targeting epidermal growth factor receptor (EGFR) in inducing radiosensitivity in two human HGG cell lines (11 and 15) that displayed similar growth patterns and expressed the receptor protein at the cell surface. We found that 15 HGG cells that express more EGFR at the cell surface were more sensitive to AG556 (an EGFR inhibitor), compared to 11 HGG cells. Although in line 15 the effect of the inhibitor was greater than in line 11, it should be noted that the efficacy of this small molecule EGFR inhibitor as monotherapy in both cell lines has been modest, at best. Our data showed a slight difference in the response to radiation of the HGG cell lines, three days after the treatment, with line 15 responding better than line 11. However, both cell lines responded to ionizing radiation in the same way, seven days after irradiation. EGFR inhibition induced radiosensitivity in 11 HGG cells, while, in 15 HGG cells, the effect of AG556 treatment on radiation response was almost nonexistent. PMID- 29329224 TI - Melanin-Based Functional Materials. AB - Melanin biopolymers are currently the focus of growing interest for a broad range of applications at the cutting edge of biomedical research and technology. This Special Issue presents a collection of papers dealing with melanin-type materials, e.g., polydopamine, for classic and innovative applications, offering a stimulating perspective of current trends in the field. Besides basic scientists, the Special Issue is directed to researchers from industries and companies that are willing to invest in melanin research for innovative and inspiring solutions. PMID- 29329225 TI - Optical Fiber Demodulation System with High Performance for Assessing Fretting Damage of Steam Generator Tubes. AB - In order to access the fretting damage of the steam generator tube (SGT), a fast fiber Fabry-Perot (F-P) non-scanning correlation demodulation system based on a super luminescent light emitting diode (SLED) was performed. By demodulating the light signal coming out from the F-P force sensor, the radial collision force between the SGT and the tube support plate (TSP) was interrogated. For higher demodulation accuracy, the effects of the center wavelength, bandwidth, and spectrum noise of SLED were discussed in detail. Specially, a piezoelectric ceramic transducer (PZT) modulation method was developed to get rid of the interference of mode coupling induced by different types of fiber optics in the demodulation system. The reflectivity of optical wedge and F-P sensor was optimized. Finally, the demodulation system worked well in a 1:1 steam generator test loop and successfully demodulated a force signal of 32 N with a collision time of 2 ms. PMID- 29329226 TI - Plils: A Practical Indoor Localization System through Less Expensive Wireless Chips via Subregion Clustering. AB - Reducing costs is a pragmatic method for promoting the widespread usage of indoor localization technology. Conventional indoor localization systems (ILSs) exploit relatively expensive wireless chips to measure received signal strength for positioning. Our work is based on a cheap and widely-used commercial off-the shelf (COTS) wireless chip, i.e., the Nordic Semiconductor nRF24LE1, which has only several output power levels, and proposes a new power level based-ILS, called Plils. The localization procedure incorporates two phases: an offline training phase and an online localization phase. In the offline training phase, a self-organizing map (SOM) is utilized for dividing a target area into k subregions, wherein their grids in the same subregion have similar fingerprints. In the online localization phase, the support vector machine (SVM) and back propagation (BP) neural network methods are adopted to identify which subregion a tagged object is located in, and calculate its exact location, respectively. The reasonable value for k has been discussed as well. Our experiments show that Plils achieves 75 cm accuracy on average, and is robust to indoor obstacles. PMID- 29329223 TI - Mast Cells: Key Contributors to Cardiac Fibrosis. AB - Historically, increased numbers of mast cells have been associated with fibrosis in numerous cardiac pathologies, implicating mast cells in the development of cardiac fibrosis. Subsequently, several approaches have been utilised to demonstrate a causal role for mast cells in animal models of cardiac fibrosis including mast cell stabilising compounds, rodents deficient in mast cells, and inhibition of the actions of mast cell-specific proteases such as chymase and tryptase. Whilst most evidence supports a pro-fibrotic role for mast cells, there is evidence that in some settings these cells can oppose fibrosis. A major gap in our current understanding of cardiac mast cell function is identification of the stimuli that activate these cells causing them to promote a pro-fibrotic environment. This review will present the evidence linking mast cells to cardiac fibrosis, as well as discuss the major questions that remain in understanding how mast cells contribute to cardiac fibrosis. PMID- 29329227 TI - Fermentation-Guided Natural Products Isolation of a Grape Berry Triacylglyceride that Enhances Ethyl Ester Production. AB - A full understanding of the origin, formation and degradation of volatile compounds that contribute to wine aroma is required before wine style can be effectively managed. Fractionation of grapes represents a convenient and robust method to simplify the grape matrix to enhance our understanding of the grape contribution to volatile compound production during yeast fermentation. In this study, acetone extracts of both Riesling and Cabernet Sauvignon grape berries were fractionated and model wines produced by spiking aliquots of these grape fractions into model grape juice must and fermented. Non-targeted SPME-GCMS analyses of the wines showed that several medium chain fatty acid ethyl esters were more abundant in wines made by fermenting model musts spiked with certain fractions. Further fractionation of the non-polar fractions and fermentation of model must after addition of these fractions led to the identification of a mixture of polyunsaturated triacylglycerides that, when added to fermenting model must, increase the concentration of medium chain fatty acid ethyl esters in wines. Dosage-response fermentation studies with commercially-available trilinolein revealed that the concentration of medium chain fatty acid ethyl esters can be increased by the addition of this triacylglyceride to model musts. This work suggests that grape triacylglycerides can enhance the production of fermentation-derived ethyl esters and show that this fractionation method is effective in segregating precursors or factors involved in altering the concentration of fermentation volatiles. PMID- 29329229 TI - Chemical Composition and Evaluation of the Biological Properties of the Essential Oil of the Dietary Phytochemical Lippia citriodora. AB - The aim of the study was to characterize the chemical composition and biological properties of the essential oil from the plant Lippia citriodora grown in Greece. The essential oil volatiles were analyzed by gas chromatography-mass spectrometry GC-MS indicating citral as the major component. Tauhe antimicrobial properties were assayed using the disk diffusion method and the minimum inhibitory and non inhibitory concentration values were determined. Listeria monocytogenes, Staphylococcus epidermidis, Staphylococcus aureus, Saccharomyces cerevisiae, and Aspergillus niger were sensitive to Lippia citriodora oil, but not Escherichia coli, Salmonella Enteritidis, Salmonella typhimurium, and Pseudomonas fragi. Adversely, all microbes tested were sensitive to citral. 2,2-Diphenyl-1 picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assays were used to assess direct antioxidant activity, which proved to be weak for both agents, while comet assay was utilized to study the cytoprotective effects against H2O2-induced oxidative damage in Jurkat cells. Interestingly, the oil showed a more profound cytoprotective effect compared to citral. The antiproliferative activity was evaluated in a panel of cancer cell lines using the sulforhodamine B (SRB) and 2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-S (phenylamino) carbonyl-2-tetrazolium hydroxide (XTT) assays and both agents demonstrated potent antiproliferative activity with citral being more cytotoxic than the oil. Taken together, the essential oil of Lippia citriodora and its major component, citral, exert diverse biological properties worthy of further investigation. PMID- 29329228 TI - Current NMR Techniques for Structure-Based Drug Discovery. AB - A variety of nuclear magnetic resonance (NMR) applications have been developed for structure-based drug discovery (SBDD). NMR provides many advantages over other methods, such as the ability to directly observe chemical compounds and target biomolecules, and to be used for ligand-based and protein-based approaches. NMR can also provide important information about the interactions in a protein-ligand complex, such as structure, dynamics, and affinity, even when the interaction is too weak to be detected by ELISA or fluorescence resonance energy transfer (FRET)-based high-throughput screening (HTS) or to be crystalized. In this study, we reviewed current NMR techniques. We focused on recent progress in NMR measurement and sample preparation techniques that have expanded the potential of NMR-based SBDD, such as fluorine NMR (19F-NMR) screening, structure modeling of weak complexes, and site-specific isotope labeling of challenging targets. PMID- 29329230 TI - Metagenomic Virome Analysis of Culex Mosquitoes from Kenya and China. AB - Many blood-feeding arthropods are known vectors of viruses that are a source of unprecedented global health concern. Mosquitoes are an integral part of these arthropod vectors. Advancements in next-generation sequencing and bioinformatics has expanded our knowledge on the richness of viruses harbored by arthropods. In the present study, we applied a metagenomic approach to determine the intercontinental virome diversity of Culex quinquefasciatus and Culex tritaeniorhynchus in Kwale, Kenya and provinces of Hubei and Yunnan in China. Our results showed that viromes from the three locations were strikingly diverse and comprised 30 virus families specific to vertebrates, invertebrates, plants, and protozoa as well as unclassified group of viruses. Though sampled at different times, both Kwale and Hubei mosquito viromes were dominated by vertebrate viruses, in contrast to the Yunnan mosquito virome, which was dominated by insect specific viruses. However, each virome was unique in terms of virus proportions partly influenced by type of ingested meals (blood, nectar, plant sap, environment substrates). The dominant vertebrate virus family in the Kwale virome was Papillomaviridae (57%) while in Hubei it was Herpesviridae (30%) and the Yunnan virome was dominated by an unclassified viruses group (27%). Given that insect-specific viruses occur naturally in their hosts, they should be the basis for defining the viromes. Hence, the dominant insect-specific viruses in Kwale, Hubei, and Yunnan were Baculoviridae, Nimaviridae and Iflaviridae, respectively. Our study is preliminary but contributes to growing and much needed knowledge, as mosquito viromes could be manipulated to prevent and control pathogenic arboviruses. PMID- 29329231 TI - Development of a Cytocompatible Scaffold from Pig Immature Testicular Tissue Allowing Human Sertoli Cell Attachment, Proliferation and Functionality. AB - Cryopreservation of immature testicular tissue before chemo/radiotherapy is the only option to preserve fertility of cancer-affected prepubertal boys. To avoid reintroduction of malignant cells, development of a transplantable scaffold by decellularization of pig immature testicular tissue (ITT) able to support decontaminated testicular cells could be an option for fertility restoration in these patients. We, therefore, compared decellularization protocols to produce a cytocompatible scaffold. Fragments of ITT from 15 piglets were decellularized using three protocols: sodium dodecyl sulfate (SDS)-Triton (ST), Triton-SDS Triton (TST) and trypsin 0.05%/ethylenediaminetetraacetic acid (EDTA) 0.02% Triton (TET) with varying detergent concentrations. All protocols were able to lower DNA levels. Collagen retention was demonstrated in all groups except ST 1%, and a significant decrease in glycosaminoglycans was observed in the TST 1% and TET 1% groups. When Sertoli cells (SCs) were cultured with decellularized tissue, no signs of cytotoxicity were detected. A higher SC proliferation rate and greater stem cell factor secretion were observed than with SCs cultured without scaffold. ST 0.01% and TET 3% conditions offered the best compromise in terms of DNA elimination and extracellular matrix (ECM) preservation, while ensuring good attachment, proliferation and functionality of human SCs. This study demonstrates the potential of using decellularized pig ITT for human testicular tissue engineering purposes. PMID- 29329232 TI - Novel 6- and 7-Substituted Coumarins with Inhibitory Action against Lipoxygenase and Tumor-Associated Carbonic Anhydrase IX. AB - A series of carboxamide derivatives of 6- and 7-substituted coumarins have been prepared by an original procedure starting from the corresponding 6- or 7 hydroxycoumarins which were alkylated with ethyl iodoacetate, and the obtained ester was converted to the corresponding carboxylic acids which were thereafter reacted with a series of aromatic/aliphatic/heterocyclic amines leading to the desired amides. The new derivatives were investigated as inhibitors of two enzymes, human carbonic anhydrases (hCAs) and soy bean lipoxygenase (LOX). Compounds 4a and 4b were potent LOX inhibitors, whereas many effective hCA IX inhibitors (KIs in the range of 30.2-30.5 nM) were detected in this study. Two compounds, 4b and 5b, showed the phenomenon of dual inhibition. Furthermore, these coumarins did not significantly inhibit the widespread cytosolic isoforms hCA I and II, whereas they were weak hCA IV inhibitors, making them hCA IX selective inhibitors. As hCA IX and LOX are validated antitumor targets, these results are promising for the investigation of novel drug targets involved in tumorigenesis. PMID- 29329234 TI - Poor People Are Hospitalized Three Times More for Mental Health Services than the Non-Poor in Central Valley California. AB - Introduction: Providing health insurance to the poor has become a standard policy response to health disparities between the poor and the non-poor. It is often assumed that if the poor people are given health insurance, they will use preventative care, which will prevent more expensive emergency visits and inpatient hospitalization, and in turn, it will save healthcare cost in the long run. This paper presents the findings from our study in California about what happens to the poor when they are given health insurance. The purpose of the study was to understand how the healthcare system in California treats the poor patients differently than the non-poor. Method: Using multivariate logistic regressions, this study analyzed a large patient discharge data (PDD) from the California Office of Statewide Planning and Development (OSHPD) for eight counties in the Central Valley California (N = 423,640). First, utilizing International Classification of Diseases (ICD 10) as diagnostic criteria, mental health vs. non-mental health hospitalization rates were estimated. Second, health insurance status was used as a proxy measure of poverty of the patients. Using chi-Square, the probability of hospitalization for mental health services was estimated based on their insurance types. Finally, using step-wise logistic regression, the odds of mental health hospitalization was estimated conditional on individual characteristics, health insurance types, and geographic characteristics. Findings: When the poor people were given health insurance, they were three times more likely to be hospitalized for mental health services than the non-poor. The more than three-fold variation in mental health hospitalization was not driven by demographic or geographic characteristics. The findings are new and have important implications for the healthcare policies for the poor. Further studies are needed to understand the extent to which the disproportionately high rate of mental health hospitalizations of the poor are driven by the provider induced needs. PMID- 29329233 TI - Dose-Dependent Effects of Randomized Intraduodenal Whey-Protein Loads on Glucose, Gut Hormone, and Amino Acid Concentrations in Healthy Older and Younger Men. AB - Protein-rich supplements are used widely for the prevention and management of malnutrition in older people. We have reported that healthy older, compared to younger, adults have less suppression of energy intake by whey-protein-effects on appetite-related hormones are unknown. The objective was to determine the effects of intraduodenally administered whey-protein on glucose, gut hormone, and amino acid concentrations, and their relation to subsequent ad libitum energy intake at a buffet meal, in healthy older and younger men. Hydrolyzed whey-protein (30 kcal, 90 kcal, and 180 kcal) and a saline control (~0 kcal) were infused intraduodenally for 60 min in 10 younger (19-29 years, 73 +/- 2 kg, 22 +/- 1 kg/m2) and 10 older (68-81 years, 79 +/- 2 kg, 26 +/- 1 kg/m2) healthy men in a randomized, double-blind fashion. Plasma insulin, glucagon, gastric inhibitory peptide (GIP), glucagon-like peptide-1 (GLP-1), peptide tyrosine-tyrosine (PYY), and amino acid concentrations, but not blood glucose, increased, while ghrelin decreased during the whey-protein infusions. Plasma GIP concentrations were greater in older than younger men. Energy intake correlated positively with plasma ghrelin and negatively with insulin, glucagon, GIP, GLP-1, PYY, and amino acids concentrations (p < 0.05). In conclusion, intraduodenal whey-protein infusions resulted in increased GIP and comparable ghrelin, insulin, glucagon, GIP, GLP-1, PYY, and amino acid responses in healthy older and younger men, which correlated to subsequent energy intake. PMID- 29329236 TI - Gender-Associated Impact of Early Leucine Supplementation on Adult Predisposition to Obesity in Rats. AB - Early nutrition plays an important role in development and may constitute a relevant contributor to the onset of obesity in adulthood. The aim of this study was to evaluate the long-term impact of maternal leucine (Leu) supplementation during lactation on progeny in rats. A chow diet, supplemented with 2% Leu, was supplied during lactation (21 days) and, from weaning onwards, was replaced by a standard chow diet. Then, at adulthood (6 months of age), this was replaced with hypercaloric diets (either with high-fat (HF) or high-carbohydrate (HC) content), for two months, to induce obesity. Female offspring from Leu-supplemented dams showed higher increases in body weight and in body fat (62%) than their respective controls; whereas males were somehow protected (15% less fat than the corresponding controls). This profile in Leu-females was associated with altered neuronal architecture at the paraventricular nucleus (PVN), involving neuropeptide Y (NPY) fibers and impaired expression of neuropeptides and factors of the mTOR signaling pathway in the hypothalamus. Interestingly, leptin and adiponectin expression in adipose tissue at weaning and at the time before the onset of obesity could be defined as early biomarkers of metabolic disturbance, predisposing towards adult obesity under the appropriate environment. PMID- 29329235 TI - A Review of the Biological Activities of Microalgal Carotenoids and Their Potential Use in Healthcare and Cosmetic Industries. AB - Carotenoids are natural pigments that play pivotal roles in many physiological functions. The characteristics of carotenoids, their effects on health, and the cosmetic benefits of their usage have been under investigation for a long time; however, most reviews on this subject focus on carotenoids obtained from several microalgae, vegetables, fruits, and higher plants. Recently, microalgae have received much attention due to their abilities in producing novel bioactive metabolites, including a wide range of different carotenoids that can provide for health and cosmetic benefits. The main objectives of this review are to provide an updated view of recent work on the health and cosmetic benefits associated with carotenoid use, as well as to provide a list of microalgae that produce different types of carotenoids. This review could provide new insights to researchers on the potential role of carotenoids in improving human health. PMID- 29329237 TI - mTOR Pathways in Cancer and Autophagy. AB - TOR (target of rapamycin), an evolutionarily-conserved serine/threonine kinase, acts as a central regulator of cell growth, proliferation and survival in response to nutritional status, growth factor, and stress signals. It plays a crucial role in coordinating the balance between cell growth and cell death, depending on cellular conditions and needs. As such, TOR has been identified as a key modulator of autophagy for more than a decade, and several deregulations of this pathway have been implicated in a variety of pathological disorders, including cancer. At the molecular level, autophagy regulates several survival or death signaling pathways that may decide the fate of cancer cells; however, the relationship between autophagy pathways and cancer are still nascent. In this review, we discuss the recent cellular signaling pathways regulated by TOR, their interconnections to autophagy, and the clinical implications of TOR inhibitors in cancer. PMID- 29329239 TI - Fine Regulation of Neutrophil Oxidative Status and Apoptosis by Ceruloplasmin and Its Derivatives. AB - Timely neutrophil apoptosis is an essential part of the resolution phase of acute inflammation. Ceruloplasmin, an acute-phase protein, which is the predominant copper-carrying protein in the blood, has been suggested to have a marked effect on neutrophil life span. The present work is a comparative study on the effects of intact holo-ceruloplasmin, its copper-free (apo-) and partially proteolyzed forms, and synthetic free peptides RPYLKVFNPR (883-892) and RRPYLKVFNPRR (882 893) on polymorphonuclear leukocyte (PMNL, neutrophil) oxidant status and apoptosis. The most pronounced effect on both investigated parameters was found with copper-containing samples, namely, intact and proteolyzed proteins. Both effectively reduced spontaneous and tumor necrosis factor-alpha (TNF-alpha) induced extracellular and intracellular accumulation of superoxide radicals, but induced a sharp increase in the oxidation of intracellular 2',7' dichlorofluorescein upon short exposure. Therefore, intact and proteolyzed ceruloplasmin have both anti- and pro-oxidant effects on PMNLs wherein the latter effect is diminished by TNF-alpha and lactoferrin. Additionally, all compounds investigated were determined to be inhibitors of delayed spontaneous apoptosis. Intact enzyme retained its pro-survival activity, whereas proteolytic degradation converts ceruloplasmin from a mild inhibitor to a potent activator of TNF-alpha induced neutrophil apoptosis. PMID- 29329240 TI - Effective Data-Driven Calibration for a Galvanometric Laser Scanning System Using Binocular Stereo Vision. AB - A new solution to the problem of galvanometric laser scanning (GLS) system calibration is presented. Under the machine learning framework, we build a single hidden layer feedforward neural network (SLFN)to represent the GLS system, which takes the digital control signal at the drives of the GLS system as input and the space vector of the corresponding outgoing laser beam as output. The training data set is obtained with the aid of a moving mechanism and a binocular stereo system. The parameters of the SLFN are efficiently solved in a closed form by using extreme learning machine (ELM). By quantitatively analyzing the regression precision with respective to the number of hidden neurons in the SLFN, we demonstrate that the proper number of hidden neurons can be safely chosen from a broad interval to guarantee good generalization performance. Compared to the traditional model-driven calibration, the proposed calibration method does not need a complex modeling process and is more accurate and stable. As the output of the network is the space vectors of the outgoing laser beams, it costs much less training time and can provide a uniform solution to both laser projection and 3D reconstruction, in contrast with the existing data-driven calibration method which only works for the laser triangulation problem. Calibration experiment, projection experiment and 3D reconstruction experiment are respectively conducted to test the proposed method, and good results are obtained. PMID- 29329241 TI - Sino-Austrian High-Tech Acupuncture Network: Annual Report 2017. AB - The Sino-Austrian High-Tech Acupuncture Research Network was founded in 2005 and has been growing ever since. The network comprises many partners from China and is highly involved in research and education activities. This report introduces the network's activities in the year 2017. PMID- 29329238 TI - Long-Chain Metabolites of Vitamin E: Metabolic Activation as a General Concept for Lipid-Soluble Vitamins? AB - Vitamins E, A, D and K comprise the class of lipid-soluble vitamins. For vitamins A and D, a metabolic conversion of precursors to active metabolites has already been described. During the metabolism of vitamin E, the long-chain metabolites (LCMs) 13'-hydroxychromanol (13'-OH) and 13'-carboxychromanol (13'-COOH) are formed by oxidative modification of the side-chain. The occurrence of these metabolites in human serum indicates a physiological relevance. Indeed, effects of the LCMs on lipid metabolism, apoptosis, proliferation and inflammatory actions as well as tocopherol and xenobiotic metabolism have been shown. Interestingly, there are several parallels between the actions of the LCMs of vitamin E and the active metabolites of vitamin A and D. The recent findings that the LCMs exert effects different from that of their precursors support their putative role as regulatory metabolites. Hence, it could be proposed that the mode of action of the LCMs might be mediated by a mechanism similar to vitamin A and D metabolites. If the physiological relevance and this concept of action of the LCMs can be confirmed, a general concept of activation of lipid-soluble vitamins via their metabolites might be deduced. PMID- 29329242 TI - Absorption and Metabolism of Phenolics from Digests of Polyphenol-Rich Potato Extracts Using the Caco-2/HepG2 Co-Culture System. AB - The bioactivity of dietary polyphenols depends upon gastrointestinal and hepatic metabolism of secondary microbial phenolic metabolites generated via colonic microbiota-mediated biotransformation. A polyphenol-rich potato extract (PRPE) containing chlorogenic, caffeic, and ferulic acids and rutin was digested in a dynamic multi-reactor gastrointestinal simulator of the human intestinal microbial ecosystem (GI model). Simulated digestion showed extensive degradation of the parent compounds and the generation of microbial phenolic metabolites. To characterize the transport and metabolism of microbial phenolic metabolites following digestion, a co-culture of intestinal Caco-2 and hepatic HepG2 cells was exposed to the PRPE-derived digests obtained from the colonic vessels. Following a 2 h incubation of the digesta with the Caco-2/HepG2 co-cultures, approximately 10-15% of ferulic, dihydrocaffeic, and dihydroferulic acids and 3 5% of 3-hydroxybenzoic, 3-hydroxyphenylpropionic, and coumaric acids were observed in the basolateral side, whereas 3-hydroxyphenylacetic acid, phenylpropanoic acid, and cinnamic acid were not detected. Subsequent HepG2 cellular metabolism led to major increases in ferulic, dihydrocaffeic, 3 hydroxyphenylpropionic, and coumaric acids ranging from 160-370%. These findings highlight the importance of hepatic metabolism towards the generation of secondary metabolites of polyphenols despite low selective Caco-2 cellular uptake of microbial phenolic metabolites. PMID- 29329243 TI - Characteristics of BeiDou Navigation Satellite System Multipath and Its Mitigation Method Based on Kalman Filter and Rauch-Tung-Striebel Smoother. AB - Global Navigation Satellite System (GNSS) carrier phase measurement for short baseline meets the requirements of deformation monitoring of large structures. However, the carrier phase multipath effect is the main error source with double difference (DD) processing. There are lots of methods to deal with the multipath errors of Global Position System (GPS) carrier phase data. The BeiDou navigation satellite System (BDS) multipath mitigation is still a research hotspot because the unique constellation design of BDS makes it different to mitigate multipath effects compared to GPS. Multipath error periodically repeats for its strong correlation to geometry of satellites, reflective surface and antenna which is also repetitive. We analyzed the characteristics of orbital periods of BDS satellites which are consistent with multipath repeat periods of corresponding satellites. The results show that the orbital periods and multipath periods for BDS geostationary earth orbit (GEO) and inclined geosynchronous orbit (IGSO) satellites are about one day but the periods of MEO satellites are about seven days. The Kalman filter (KF) and Rauch-Tung-Striebel Smoother (RTSS) was introduced to extract the multipath models from single difference (SD) residuals with traditional sidereal filter (SF). Wavelet filter and Empirical mode decomposition (EMD) were also used to mitigate multipath effects. The experimental results show that the three filters methods all have obvious effect on improvement of baseline accuracy and the performance of KT-RTSS method is slightly better than that of wavelet filter and EMD filter. The baseline vector accuracy on east, north and up (E, N, U) components with KF-RTSS method were improved by 62.8%, 63.6%, 62.5% on day of year 280 and 57.3%, 53.4%, 55.9% on day of year 281, respectively. PMID- 29329245 TI - Underwater Object Segmentation Based on Optical Features. AB - Underwater optical environments are seriously affected by various optical inputs, such as artificial light, sky light, and ambient scattered light. The latter two can block underwater object segmentation tasks, since they inhibit the emergence of objects of interest and distort image information, while artificial light can contribute to segmentation. Artificial light often focuses on the object of interest, and, therefore, we can initially identify the region of target objects if the collimation of artificial light is recognized. Based on this concept, we propose an optical feature extraction, calculation, and decision method to identify the collimated region of artificial light as a candidate object region. Then, the second phase employs a level set method to segment the objects of interest within the candidate region. This two-phase structure largely removes background noise and highlights the outline of underwater objects. We test the performance of the method with diverse underwater datasets, demonstrating that it outperforms previous methods. PMID- 29329244 TI - Infant Development at the Age of 6 Months in Relation to Feeding Practices, Iron Status, and Growth in a Peri-Urban Community of South Africa. AB - BACKGROUND: Evidence on the association between feeding practices, iron deficiency, anaemia, stunting, and impaired psychomotor development during infancy is limited. This study assessed the association between psychomotor development with early feeding practices, growth, iron status, and anaemia. METHODS: This was cross-sectional baseline data of a randomised controlled trial which included 6-month-old infants and their mothers or primary caregivers (n = 750) in a peri-urban community in the North West province of South Africa. The Kilifi Developmental Inventory and a parent rating scale were used to assess psychomotor development. Feeding practices and anthropometric measurements were based on the World Health Organisation (WHO) guidelines. Anaemia and iron status were determined by blood sample analysis. RESULTS: Prevalence of anaemia and stunting for the infants were 36.4% and 28.5%, respectively. Multiple regression analysis showed that birth weight was related to combined psychomotor scores (beta = -3.427 (-4.603, 1.891), p < 0.001), as well as parent rating scores (beta = -0.843 (-1.507, -0.180), p = 0.013). Length-for-age z-scores were associated with combined psychomotor scores (beta = -1.419 (-2.466, 0.373), p = 0.008), as well as parent rating scores (beta = -0.747 (-1.483, -0.010), p = 0.047). CONCLUSIONS: In this setting, with high prevalence of anaemia and stunting, important associations between lower psychomotor development scores and birthweight as well as length-for-age z-scores in 6-month-old infants were found. These findings warrant further investigation to develop a greater understanding of factors influencing the association between child growth and psychomotor development within the first 1000 days of life. PMID- 29329246 TI - Socioeconomic Inequalities in the Use of Healthcare Services: Comparison between the Roma and General Populations in Spain. AB - This paper explores whether the principles of horizontal and vertical equity in healthcare are met by the Spanish national health system in the case of the Roma and general populations. The 2011/2012 Spanish National Health Survey (n = 21,650) and the 2014 National Health Survey of the Spanish Roma Population (n = 1167) were analyzed. Use of healthcare services was measured in terms of visits to a general practitioner (GP), visits to an emergency department, and hospitalizations. Healthcare need was measured using (a) self-rated health and (b) the reported number of chronic diseases. The Roma reported worse self-rated health and a higher prevalence of chronic diseases. A redistributive effect (increased healthcare service use among Roma and those in lower socio-economic classes) was found for hospitalizations and emergency visits. This effect was also observed in GP visits for women, but not for men. Vertical inequity was observed in the general population but not in the Roma population for GP visits. The results suggest the existence of horizontal inequity in the use of GP services (Roma women), emergency department visits (Roma and general population), and hospitalizations (Roma population) and of vertical inequity in the use of GP services among the general population. PMID- 29329248 TI - Performance Analysis of Millimeter-Wave Multi-hop Machine-to-Machine Networks Based on Hop Distance Statistics. AB - As an intrinsic part of the Internet of Things (IoT) ecosystem, machine-to machine (M2M) communications are expected to provide ubiquitous connectivity between machines. Millimeter-wave (mmWave) communication is another promising technology for the future communication systems to alleviate the pressure of scarce spectrum resources. For this reason, in this paper, we consider multi-hop M2M communications, where a machine-type communication (MTC) device with the limited transmit power relays to help other devices using mmWave. To be specific, we focus on hop distance statistics and their impacts on system performances in multi-hop wireless networks (MWNs) with directional antenna arrays in mmWave for M2M communications. Different from microwave systems, in mmWave communications, wireless channel suffers from blockage by obstacles that heavily attenuate line of-sight signals, which may result in limited per-hop progress in MWNs. We consider two routing strategies aiming at different types of applications and derive the probability distributions of their hop distances. Moreover, we provide their baseline statistics assuming the blockage-free scenario to quantify the impact of blockages. Based on the hop distance analysis, we propose a method to estimate the end-to-end performances (e.g., outage probability, hop count, and transmit energy) of the mmWave MWNs, which provides important insights into mmWave MWN design without time-consuming and repetitive end-to-end simulation. PMID- 29329247 TI - A Simple Method to Measure Renal Function in Swine by the Plasma Clearance of Iohexol. AB - There is no simple method to measure glomerular filtration rate (GFR) in swine, an established model for studying renal disease. We developed a protocol to measure GFR in conscious swine by using the plasma clearance of iohexol. We used two groups, test and validation, with eight animals each. Ten milliliters of iohexol (6.47 g) was injected into the marginal auricular vein and blood samples (3 mL) were collected from the orbital sinus at different points after injection. GFR was determined using two models: two-compartment (CL2: all samples) and one compartment (CL1: the last six samples). In the test group, CL1 overestimated CL2 by ~30%: CL2 = 245 +/- 93 and CL1 = 308 +/- 123 mL/min. This error was corrected by a first-order polynomial quadratic equation to CL1, which was considered the simplified method: SM = -47.909 + (1.176xCL1) - (0.00063968xCL12). The SM showed narrow limits of agreement with CL2, a concordance correlation of 0.97, and a total deviation index of 14.73%. Similar results were obtained for the validation group. This protocol is reliable, reproducible, can be performed in conscious animals, uses a single dose of the marker, and requires a reduced number of samples, and avoids urine collection. Finally, it presents a significant improvement in animal welfare conditions and handling necessities in experimental trials. PMID- 29329250 TI - Blood Flow and Continuous EEG Changes during Symptomatic Plateau Waves. AB - Benign meningiomas uncommonly lead to significant cerebral edema, with only a few cases previously reported in the medical literature. The present study describes the case of a 49-year-old female who had a meningioma resection. She subsequently developed malignant cerebral edema and had episodes that were initially concerning for seizure activity. However, transient blood flow changes concerning for intracranial pressure (ICP) crises, were demonstrated on electroencephalogram (EEG) as well as noninvasive cerebral blood flow monitoring. The present case highlights the importance of close monitoring in patients with post meningioma resection cerebral edema because of the possibility of ICP crises. PMID- 29329249 TI - Scaffolding for Repair: Understanding Molecular Functions of the SMC5/6 Complex. AB - Chromosome organization, dynamics and stability are required for successful passage through cellular generations and transmission of genetic information to offspring. The key components involved are Structural maintenance of chromosomes (SMC) complexes. Cohesin complex ensures proper chromatid alignment, condensin complex chromosome condensation and the SMC5/6 complex is specialized in the maintenance of genome stability. Here we summarize recent knowledge on the composition and molecular functions of SMC5/6 complex. SMC5/6 complex was originally identified based on the sensitivity of its mutants to genotoxic stress but there is increasing number of studies demonstrating its roles in the control of DNA replication, sister chromatid resolution and genomic location-dependent promotion or suppression of homologous recombination. Some of these functions appear to be due to a very dynamic interaction with cohesin or other repair complexes. Studies in Arabidopsis indicate that, besides its canonical function in repair of damaged DNA, the SMC5/6 complex plays important roles in regulating plant development, abiotic stress responses, suppression of autoimmune responses and sexual reproduction. PMID- 29329251 TI - Pharmacological Investigation of the Anti-Inflammation and Anti-Oxidation Activities of Diallyl Disulfide in a Rat Emphysema Model Induced by Cigarette Smoke Extract. AB - Diallyl disulfide (DADS) is the main organosulfur ingredient in garlic, with known antioxidant and anti-inflammatory activities. The aim of the present study was to investigate the effect of DADS on reducing the inflammation and redox imbalance in a rat emphysema model that was induced by intraperitoneal injection of cigarette smoke extract (CSE). Briefly, DADS exerted an anti-inflammation effect on emphysema rats through decreasing cell influx in the bronchoalveolar lavage fluid (BALF) and suppressing pro-inflammation cytokine production including tumor necrosis factor alpha (TNF-alpha), interleukin-1beta (IL-1beta), interleukin-6 (IL-6) via inhibiting the NF-kappaB pathway. In addition, levels of oxidative stress markers including malondialdehyde (MDA) and myeloperoxidase (MPO) were reduced, while the activities of glutathione (GSH), glutathione peroxidase (GSH-PX), superoxide dismutase (SOD) and total antioxidant capacity (T AOC) were markedly enhanced by DADS. Moreover, MMP-9 and TIMP-1 expression were down-regulated by DADS. Furthermore, the regulation effects of DADS on CD4+ and CD8+ T cells were observed. In conclusion, these encouraging findings suggest that DADS could be considered as a promising anti-inflammation and antioxidative agent for the treatment of emphysema. PMID- 29329255 TI - Peri-Implant Behavior of Sloped Shoulder Dental Implants Used for All-On-Four Protocols: An Histomorphometric Analysis in Dogs. AB - The aim of this study was to evaluate the soft tissue thickness and marginal bone loss around dental implants with sloped micro-threaded shoulder (35 degrees angle) in comparing with conventional design, inserted 35 degrees degrees angulated in post extraction sockets and immediate loaded with temporary prosthesis simulating the all-on-four protocol. Materials and Methods: Six fox hound dogs received forty-eight post extraction dental implants with the same diameter and length (Medentika, Germany), but with different neck configurations. Two group of implants were inserted 1mm subcrestal. Control group has a micro threaded neck and the Test group has a sloped microthreaded neck. Immediate loading was applied using a constructed metallic structure. After three months, soft and hard tissue levels were assessed by histomorphometric analysis. Results: The mean soft tissue thickness (STT) was 2.5 +/- 0.2 mm for the Control group and 3.3 +/- 0.3 mm for Test group (p = 0.036), meanwhile the mean marginal bone loss (MBL) was 1.53 +/- 0.34 mm for Control group and, 1.62 +/- 0.22 mm for Test group (p > 0.05). Conclusions: Within the limitations of this experimental model in dogs, the findings showed that dental implants with microthreaded and microthreaded sloped necks installed in immediate post extraction sites with immediate load, presented a comparable perimplant tissue behavior. PMID- 29329254 TI - Low-Carbohydrate, High-Protein, High-Fat Diets Rich in Livestock, Poultry and Their Products Predict Impending Risk of Type 2 Diabetes in Chinese Individuals that Exceed Their Calculated Caloric Requirement. AB - The evidence on the association between long-term low-carbohydrate, high-fat and high-protein diets and type 2 diabetes (T2D) is controversial. Until now, data is limited for Chinese populations, especially in considering the influence of extra energy intake. In this paper, we aimed to investigate the association of low carbohydrate, high-fat and high-protein diets with type 2 diabetes (T2D) risk in populations consuming extra calories and those with normal caloric intake, We also determined whether the association is mediated by insulin resistance (IR) or beta-cell dysfunction. A total of 3644 subjects in the Harbin People's Health Study (Cohort 1, 2008-2012) and 7111 subjects in the Harbin Cohort Study on Diet, Nutrition and Chronic Non-Communicable Diseases (Cohort 2, 2010-2015) were analyzed, with a median follow-up of 4.2 and 5.3 years, respectively. Multivariate relative risks (RRs) and their 95% confidence intervals (95% CIs) were calculated to estimate the association between low-carbohydrate, high-fat and high-protein diet and T2D in logistic regression models. The multivariate RRs (95% CIs) were 1.00, 2.24 (1.07, 4.72) and 2.29 (1.07, 4.88) (Ptrend = 0.04), and 1.00, 1.45 (0.91, 2.31) and 1.64 (1.03, 2.61) (Ptrend = 0.04) across tertiles of low-carbohydrate, high-fat and high-protein diet scores in the population consuming extra calories in Cohort 1 and Cohort 2, respectively. The association was no longer significant after adjustment for livestock and its products, or poultry and its products. The mediation analysis discovered that this association in the population consuming extra calories was insulin resistance mediated, in both Cohort 1 and Cohort 2. However, the association was not significant among participants overall and participants with normal caloric intake. Our results indicated that long-term low-carbohydrate, high-fat and high-protein diets were associated with increased T2D risk among the population consuming extra calories, which may be caused by higher intake of animal-origin fat and protein as well as lower intake of vegetables, fruit and fiber. Additionally, the association was mediated by IR. In the population consuming extra calories, reducing the intake of livestock, poultry and their products and increasing the intake of vegetables, fruit and fiber might protect this population from developing T2D. PMID- 29329256 TI - Personalized Antidepressant Selection and Pathway to Novel Treatments: Clinical Utility of Targeting Inflammation. AB - Major depressive disorder (MDD) is a chronic condition that affects one in six adults in the US during their lifetime. The current practice of antidepressant medication prescription is a trial-and-error process. Additionally, over a third of patients with MDD fail to respond to two or more antidepressant treatments. There are no valid clinical markers to personalize currently available antidepressant medications, all of which have similar mechanisms targeting monoamine neurotransmission. The goal of this review is to summarize the recent findings of immune dysfunction in patients with MDD, the utility of inflammatory markers to personalize treatment selection, and the potential of targeting inflammation to develop novel antidepressant treatments. To personalize antidepressant prescription, a c-reactive protein (CRP)-matched treatment assignment can be rapidly implemented in clinical practice with point-of-care fingerstick tests. With this approach, 4.5 patients need to be treated for 1 additional remission as compared to a CRP-mismatched treatment assignment. Anti cytokine treatments may be effective as novel antidepressants. Monoclonal antibodies against proinflammatory cytokines, such as interleukin 6, interleukin 17, and tumor necrosis factor alpha, have demonstrated antidepressant effects in patients with chronic inflammatory conditions who report significant depressive symptoms. Additional novel antidepressant strategies targeting inflammation include pharmaceutical agents that block the effect of systemic inflammation on the central nervous system. In conclusion, inflammatory markers offer the potential not only to personalize antidepressant prescription but also to guide the development of novel mechanistically-guided antidepressant treatments. PMID- 29329259 TI - Extreme Overvalued Beliefs: How Violent Extremist Beliefs Become "Normalized". AB - Extreme overvalued beliefs (EOB) are rigidly held, non-deusional beliefs that are the motive behind most acts of terrorism and mass shootings. EOBs are differentiated from delusions and obsessions. The concept of an overvalued idea was first described by Wernicke and later applied to terrorism by McHugh. Our group of forensic psychiatrists (Rahman, Resnick, Harry) refined the definition as an aid in the differential diagnosis seen in acts of violence. The form and content of EOBs is discussed as well as group effects, conformity, and obedience to authority. Religious cults such as The People's Temple, Heaven's Gate, Aum Shinrikyo, and Islamic State (ISIS) and conspiracy beliefs such as assassinations, moon-hoax, and vaccine-induced autism beliefs are discussed using this construct. Finally, some concluding thoughts on countering violent extremism, including its online presence is discussed utilizing information learned from online eating disorders and consumer experience. PMID- 29329258 TI - Association between Haem and Non-Haem Iron Intake and Serum Ferritin in Healthy Young Women. AB - Iron is an essential micronutrient for human health and inadequate intake may result in iron deficiency (ID) or iron deficiency anaemia (IDA). Unlike other recent studies investigating iron status in young women, this cross-sectional study analysed dietary intake and biochemical data from healthy young (18-35 years) women (n = 299) to determine the association between both haem iron (HI) and non-haem iron (NHI) intakes and serum ferritin (SF). Dietary restraint and possible inflammation secondary to obesity were also measured and accounted for, and energy intake was adjusted for using the residuals method. Independent samples t-tests and chi-squared tests were performed, and factors found to be significantly different between iron replete (IR) and ID/IDA participants were analysed using general linear modelling. ID/IDA participants consumed significantly lower total energy than iron replete (IR) (p = 0.003). Lower energy intake was also associated with higher levels of dietary restraint (p = 0.001). Both HI and NHI were positively associated with SF with HI was found to be a stronger predictor (beta = 0.128, p = 0.009) than NHI (beta = 0.037, p = 0.028). The study demonstrates that intake of both HI and NHI, as well as adequate dietary energy, are associated with normal iron status levels in young women, and that restrained eaters may be at greater risk of low iron status. PMID- 29329260 TI - Effects of Zr Addition on Strengthening Mechanisms of Al-Alloyed High-Cr ODS Steels. AB - Oxide dispersion strengthened (ODS) steels with different contents of zirconium (denoted as 16Cr ODS, 16Cr-0.3Zr ODS and 16Cr-0.6Zr ODS) were fabricated to investigate the effects of Zr on strengthening mechanism of Al-alloyed 16Cr ODS steel. Electron backscatter diffraction (EBSD) results show that the mean grain size of ODS steels could be decreased by Zr addition. Transmission electron microscope (TEM) results indicate that Zr addition could increase the number density but decrease the mean diameter and inter-particle spacing of oxide particles. Furthermore, it is also found that in addition to Y-Al-O nanoparticles, Y-Zr-O oxides with finer size were observed in 16Cr-0.3Zr ODS and 16Cr-0.6Zr ODS steels. These changes in microstructure significantly increase the yield strength (YS) and ultimate tensile strength (UTS) of ODS steels through mechanisms of grain boundary strengthening and dispersion strengthening. PMID- 29329261 TI - Sitting Posture Monitoring System Based on a Low-Cost Load Cell Using Machine Learning. AB - Sitting posture monitoring systems (SPMSs) help assess the posture of a seated person in real-time and improve sitting posture. To date, SPMS studies reported have required many sensors mounted on the backrest plate and seat plate of a chair. The present study, therefore, developed a system that measures a total of six sitting postures including the posture that applied a load to the backrest plate, with four load cells mounted only on the seat plate. Various machine learning algorithms were applied to the body weight ratio measured by the developed SPMS to identify the method that most accurately classified the actual sitting posture of the seated person. After classifying the sitting postures using several classifiers, average and maximum classification rates of 97.20% and 97.94%, respectively, were obtained from nine subjects with a support vector machine using the radial basis function kernel; the results obtained by this classifier showed a statistically significant difference from the results of multiple classifications using other classifiers. The proposed SPMS was able to classify six sitting postures including the posture with loading on the backrest and showed the possibility of classifying the sitting posture even though the number of sensors is reduced. PMID- 29329257 TI - Synthesis and Pharmacological Activities of Pyrazole Derivatives: A Review. AB - Pyrazole and its derivatives are considered a pharmacologically important active scaffold that possesses almost all types of pharmacological activities. The presence of this nucleus in pharmacological agents of diverse therapeutic categories such as celecoxib, a potent anti-inflammatory, the antipsychotic CDPPB, the anti-obesity drug rimonabant, difenamizole, an analgesic, betazole, a H2-receptor agonist and the antidepressant agent fezolamide have proved the pharmacological potential of the pyrazole moiety. Owing to this diversity in the biological field, this nucleus has attracted the attention of many researchers to study its skeleton chemically and biologically. This review highlights the different synthesis methods and the pharmacological properties of pyrazole derivatives. Studies on the synthesis and biological activity of pyrazole derivatives developed by many scientists around the globe are reported. PMID- 29329262 TI - Contamination and Risk Assessment of Estrogens in Livestock Manure: A Case Study in Jiangsu Province, China. AB - This study investigated the occurrence and contamination risk of estrogens in livestock manure in Jiangsu Province, China. Four estrogens-estriol (E3), 17beta estradiol (17beta-E2), bisphenol A (BPA), and 17alpha-ethinyloestradiol (EE2) were detected in livestock manure from hens, ducks, swine, and cows. The respective mean concentrations of each estrogen found in these manures were 289.8, 334.1, 330.3, and 33.7 MUg/kg for E3; 38.6, 10.9, 52.9, and 38.8 MUg/kg for 17beta-E2; 63.6, 48.7, 51.9, and 11.7 MUg/kg for BPA; and 14.3, 11.3, 25.1, and 21.8 MUg/kg for EE2. Estrogens were most frequently detected at high concentrations in the manure of finishing pigs, followed by the manure of growing pigs and piglets. Estrogens can be partially degraded after banking up for seven days; yet, great quantities of estrogens remain in livestock manure. The total estradiol equivalent quantity (EEQt) estimated to be present in aquatic environments but originating from livestock waste was 10.5 ng/L, which was greater than the hazard baseline value (1 ng/L) and also higher than the proposed lowest observable effect concentration (10 ng/L) of E2 in aquatic environments. The results of our study demonstrate that livestock waste is an important source of estrogens, which may potentially affect the hormonal metabolism of aquatic organisms. PMID- 29329263 TI - Effect of Radiological Countermeasures on Subjective Well-Being and Radiation Anxiety after the 2011 Disaster: The Fukushima Health Management Survey. AB - After the Fukushima Daiichi Nuclear Power Station accident in 2011, concerns about radiation exposure and decline in subjective well-being have been reported. To tackle these problems, various countermeasures in relation to radiation have been implemented. In this study, we comprehensively evaluated the effects of radiological countermeasures on subjective well-being (e.g., satisfaction with life (SWL) and emotional well-being) and radiation anxiety, through a questionnaire survey targeting Fukushima residents (N = 1023). Propensity scores matching was applied to evaluate significant effects of radiological countermeasures on subjective well-being and radiation anxiety. Among the radiological countermeasures, thyroid examination, whole body counter, and air dose monitoring showed the highest proportions of participation, utilization, and useful evaluation, suggesting a high degree of public attention focused on these countermeasures. The basic survey was associated with significant increases in SWL and self-rated health (SH). Thyroid examination was significantly associated with not only a reduction in radiation anxiety but also an increase of emotional stress, suggesting the importance of careful design of system and detailed communication. Food inspection was associated with deterioration in SH. Those who utilized explanatory meetings showed increases in sadness, worry, and radiation anxiety, indicating that additional attention is required of the experts and authorities involved in explanatory meetings. PMID- 29329264 TI - Engineering Ru@Pt Core-Shell Catalysts for Enhanced Electrochemical Oxygen Reduction Mass Activity and Stability. AB - Improving the performance of oxygen reduction reaction (ORR) electrocatalysts is essential for the commercial efficacy of many renewable energy technologies, including low temperature polymer electrolyte fuel cells (PEFCs). Herein, we report highly active and stable carbon-supported Ru@Pt core-shell nanoparticles (Ru@Pt/C) prepared by a wet chemical synthesis technique. Through rotating disc electrode testing, the Ru@Pt/C achieves an ORR Pt mass-based activity of 0.50 A mgPt-1 at 0.9 V versus the reversible hydrogen electrode (RHE), which exceeds the activity of the state-of-the-art commercial Pt/C catalyst as well as the Department of Energy 2020 PEFC electrocatalyst activity targets for transportation applications. The impact of various synthetic parameters, including Pt to Ru ratios and catalyst pretreatments (i.e., annealing) are thoroughly explored. Pt-based mass activity of all prepared Ru@Pt/C catalysts was found to exceed 0.4 mgPt-1 across the range of compositions investigated, with the maximum activity catalyst having a Ru:Pt ratio of 1:1. This optimized composition of Ru@Pt/C catalyst demonstrated remarkable stability after 30,000 accelerated durability cycles (0.6 to 1.0 V vs. RHE at 125 mV s-1), maintaining 85% of its initial mass activity. Scanning transmission electron microscopy energy dispersive spectroscopy (STEM-EDS) analysis at various stages of electrochemical testing demonstrated that the Pt shell can provide sufficient protection against the dissolution of the otherwise unstable Ru core. PMID- 29329265 TI - Multiple-Octave-Spanning Vibration Sensing Based on Simultaneous Vector Demodulation of 499 Fizeau Interference Signals from Identical Ultra-Weak Fiber Bragg Gratings Over 2.5 km. AB - Multi-point vibration sensing at the low frequency range of 0.5-100 Hz is of vital importance for applications such as seismic monitoring and underwater acoustic imaging. Location-resolved multi-point sensing using a single fiber and a single demodulation system can greatly reduce system deployment and maintenance costs. We propose and demonstrate the demodulation of a fiber-optic system consisting of 500 identical ultra-weak Fiber Bragg gratings (uwFBGs), capable of measuring the amplitude, frequency and phase of acoustic signals from 499 sensing fibers covering a total range of 2.5 km. For demonstration purposes, we arbitrarily chose six consecutive sensors and studied their performance in detail. Using a passive demodulation method, we interrogated the six sensors simultaneously, and achieved a high signal-to-noise ratio of 22.1 dB, excellent linearity, phase sensitivity of around 0.024 rad/Pa, and a dynamic range of about 38 dB. We demonstrated a frequency response flatness of <1.2 dB in the range of 0.5-100 Hz. Compared to the prior state-of-the-art demonstration using a similar method, we have increased the sensing range from 1 km to 2.5 km, and increased the frequency range from 0.4 octaves to 7.6 octaves, in addition to achieving sensing in the very challenging low-frequency range of 0.5-100 Hz. PMID- 29329266 TI - Relative Validity of a 24-h Recall in Assessing Intake of Key Nutrients in a Cohort of Australian Toddlers. AB - There is limited information concerning the dietary intake of toddlers in Australia. Consequently, there is a need for studies investigating toddler intake that use dietary assessment measures that are valid and place a low participant burden on caregivers. The aim of this study was to determine the relative validity of a single 24-h dietary recall (24HR) in measuring the intake of five nutrients in a cohort of Australian toddlers compared to a combined 24HR and 2 day estimated food record (2DFR). A single 24HR and a 2DFR were collected from a cohort of Australian toddlers (n = 699) at approximately 12 months of age as part of the Study of Mothers' and Infants' Life Events affecting oral health (SMILE) project. Relative validity of one day of dietary data (24HR) in assessing intake of energy, protein, calcium, iron, and added sugars was tested against three days of dietary data (24HR + 2DFR) using paired t-tests, Bland-Altman analysis, cross classification, and weighted Kappa statistic. Classification analysis found good agreement between the 24HR and 24HR + 2DFR for all nutrients with the percentage classified in the same tertile at 57.9% and above. The weighted Kappa statistic found acceptable agreement for all nutrients. This study suggests that a 24HR is a valid assessment tool for estimating the relative intake of energy, protein, calcium, iron, and added sugars among Australian toddlers at the individual level. PMID- 29329267 TI - A Mild Aqueous Sonogashira Reaction as a Fluorescent Labeling Strategy for 5 Bromide-2'-Deoxyuridine. AB - C5-modified uridines are a valuable class of nucleoside analogues, both as potent chemotherapy agents and through their use as the conjunction site in DNA labeling strategies. As an important C5-modified uridine, BrdU has been used in cell proliferation assays since the 1980s. Currently, the detection of BrdU relies on traditional immunostaining; however, this approach has its limitations. Thus, it is desirable, albeit difficult, to develop chemistry methods to fluorescently label BrdU in a cellular context. In the present study, we report our efforts toward developing a robust chemistry methodology for BrdU fluorescent labeling. The Sonogashira reaction was chosen as the key reaction, and various alkynyl groups (aliphatic or aryl) containing fluorescent dyes were synthesized to cross couple with BrdU. Various bases and catalyst systems were screened to evaluate the optimum conditions. A mild aqueous Sonogashira reaction (K2PdCl4, S-Phos, n Bu4N+OH-, Sodium d-isoascorbate, EtOH/H2O = 1:1, 37 degrees C, Ar) was obtained to enable high-yielding BrdU fluorescent labeling. PMID- 29329268 TI - Anomaly Detection in Nanofibrous Materials by CNN-Based Self-Similarity. AB - Automatic detection and localization of anomalies in nanofibrous materials help to reduce the cost of the production process and the time of the post-production visual inspection process. Amongst all the monitoring methods, those exploiting Scanning Electron Microscope (SEM) imaging are the most effective. In this paper, we propose a region-based method for the detection and localization of anomalies in SEM images, based on Convolutional Neural Networks (CNNs) and self-similarity. The method evaluates the degree of abnormality of each subregion of an image under consideration by computing a CNN-based visual similarity with respect to a dictionary of anomaly-free subregions belonging to a training set. The proposed method outperforms the state of the art. PMID- 29329269 TI - Design, Synthesis, and Safener Activity of Novel Methyl (R)-N Benzoyl/Dichloroacetyl-Thiazolidine-4-Carboxylates. AB - A series of novel methyl (R)-N-benzoyl/dichloroacetyl-thiazolidine-4-carboxylates were designed by active substructure combination. The title compounds were synthesized using a one-pot route from l-cysteine methyl ester hydrochloride, acyl chloride, and ketones. All compounds were characterized by IR, 1H NMR, 13C NMR, and HRMS. The structure of 4q was determined by X-ray crystallography. The biological tests showed that the title compounds protected maize from chlorimuron ethyl injury to some extent. The ALS activity assay showed that the title compounds increased the ALS activity of maize inhibited by chlorimuron-ethyl. Molecular docking modeling demonstrated that Compound 4e competed against chlorimuron-ethyl to combine with the herbicide target enzyme active site, causing the herbicide to be ineffective. PMID- 29329270 TI - Toxicity Evaluation of Individual and Mixtures of Nanoparticles Based on Algal Chlorophyll Content and Cell Count. AB - The toxic effects of individual and binary mixtures of five metal oxide nanoparticles (NPs) were evaluated based on changes in two endpoints of algal growth: the cell count and chlorophyll content. Various effects were observed according to the concentration tested and type of NPs, and there were no significant differences in findings for the two endpoints. In general, ZnO NPs caused the greatest inhibition of algal growth, and Fe2O3 NPs the least. The EC50 for ZnO was 2.0 mg/L for the cell count and 2.6 mg/L for the chlorophyll content, and it was 76 and 90 mg/L, respectively, for Fe2O3. The EC50 values were in the order ZnO > NiO > CuO > TiO2 > Fe2O3. Subsequently, the effects of 30 binary mixture combinations on the chlorophyll content were evaluated. Comparisons were made between the observed and the expected toxicities calculated based on the individual NP toxicities. Overall, additive action (67%) was mainly observed, followed by antagonistic (16.5%) and synergistic (16.5%) actions. These results suggest that environmental exposure to NP mixtures may cause toxicity levels similar to the sum of those of the constituent NPs. PMID- 29329271 TI - Transketolase Is Identified as a Target of Herbicidal Substance alpha-Terthienyl by Proteomics. AB - alpha-terthienyl is a natural phytotoxin isolated originally from Flaveria bidentis (L.) Kuntze. The bioassay presented here shows the strong herbicidal activity of alpha-terthienyl on Digitaria sanguinalis, Arabidopsis thaliana and Chlamydomonas reinhardtii. The alpha-terthienyl-induced response of A. thaliana at the protein level was analyzed at different times. Changes in the protein expression profiles were analyzed by two-dimensional gel electrophoresis and liquid chromatography tandem mass spectrometry (LC-MS/MS) mass spectrometry. Sixteen protein spots were identified that showed reproducible changes in the expression of at least 2-fold when compared to the control. Among these 16 spots, three were up-regulated and 13 were down-regulated. The decreased expression of several proteins associated with energy production and carbon metabolism suggested that these processes were affected by alpha-terthienyl. To search for the candidate proteins in this screen, A. thaliana T-DNA mutants of the candidate proteins were used to test their susceptibility to alpha-terthienyl. Amongst the others, attkl1, a mutant of transketolase, exhibited a significantly lower sensitivity to alpha-terthienyl when hit compared with Col-0. Based on the identification of the proteins associated with the response to alpha-terthienyl by proteomics, a candidate target protein transketolase was identified. PMID- 29329272 TI - Rapid Screening and Identification of Daidzein Metabolites in Rats Based on UHPLC LTQ-Orbitrap Mass Spectrometry Coupled with Data-Mining Technologies. AB - Daidzein, the main bioactive soy isoflavone in Nature, has been found to possess many biological functions. It has been investigated in particular as a phytoestrogen owing to the similarity of its structure with that of the human hormone estrogen. Due to the lack of comprehensive studies on daidzein metabolism, further research is still required to clarify its in vivo metabolic fate and intermediate processes. In this study, an efficient strategy was established using UHPLC-LTQ-Orbitrap mass spectrometry to profile the metabolism of daidzein in rats. Meanwhile, multiple data-mining methods including high resolution extracted ion chromatogram (HREIC), multiple mass defect filtering (MMDF), neutral loss fragment (NLF), and diagnostic product ion (DPI) were utilized to investigate daidzein metabolites from the HR-ESI-MS1 to ESI-MSn stage in both positive and negative ion modes. Consequently, 59 metabolites, including prototype compounds, were positively or tentatively elucidated based on reference standards, accurate mass measurements, mass fragmentation behaviors, chromatographic retention times, and corresponding calculated ClogP values. As a result, dehydration, hydrogenation, methylation, dimethylation, glucuronidation, glucosylation, sulfonation, ring-cleavage, and their composite reactions were ascertained to interpret its in vivo biotransformation. Overall, our results not only revealed the potential pharmacodynamics forms of daidzein, but also aid in establishing a practical strategy for rapid screening and identifying metabolites of natural compounds. PMID- 29329273 TI - Transcriptomics Evidence for Common Pathways in Human Major Depressive Disorder and Glioblastoma. AB - Depression as a common complication of brain tumors. Is there a possible common pathogenesis for depression and glioma? The most serious major depressive disorder (MDD) and glioblastoma (GBM) in both diseases are studied, to explore the common pathogenesis between the two diseases. In this article, we first rely on transcriptome data to obtain reliable and useful differentially expressed genes (DEGs) by differential expression analysis. Then, we used the transcriptomics of DEGs to find out and analyze the common pathway of MDD and GBM from three directions. Finally, we determine the important biological pathways that are common to MDD and GBM by statistical knowledge. Our findings provide the first direct transcriptomic evidence that common pathway in two diseases for the common pathogenesis of the human MDD and GBM. Our results provide a new reference methods and values for the study of the pathogenesis of depression and glioblastoma. PMID- 29329275 TI - Chitosan-Starch Films with Natural Extracts: Physical, Chemical, Morphological and Thermal Properties. AB - The aim of this study is to analyze the properties of a series of polysaccharide composite films, such as apparent density, color, the presence of functional groups, morphology, and thermal stability, as well as the correlation between them and their antimicrobial and optical properties. Natural antioxidants such as anthocyanins (from cranberry; blueberry and pomegranate); betalains (from beetroot and pitaya); resveratrol (from grape); and thymol and carvacrol (from oregano) were added to the films. Few changes in the position and intensity of the FTIR spectra bands were observed despite the low content of extract added to the films. Due to this fact, the antioxidants were extracted and identified by spectroscopic analysis; and they were also quantified using the Folin-Denis method and a gallic acid calibration curve, which confirmed the presence of natural antioxidants in the films. According to the SEM analysis, the presence of natural antioxidants has no influence on the film morphology because the stretch marks and white points that were observed were related to starch presence. On the other hand, the TGA analysis showed that the type of extract influences the total weight loss. The overall interpretation of the results suggests that the use of natural antioxidants as additives for chitosan-starch film preparation has a prominent impact on most of the critical properties that are decisive in making them suitable for food-packing applications. PMID- 29329274 TI - Current Technologies of Electrochemical Immunosensors: Perspective on Signal Amplification. AB - An electrochemical immunosensor employs antibodies as capture and detection means to produce electrical charges for the quantitative analysis of target molecules. This sensor type can be utilized as a miniaturized device for the detection of point-of-care testing (POCT). Achieving high-performance analysis regarding sensitivity has been one of the key issues with developing this type of biosensor system. Many modern nanotechnology efforts allowed for the development of innovative electrochemical biosensors with high sensitivity by employing various nanomaterials that facilitate the electron transfer and carrying capacity of signal tracers in combination with surface modification and bioconjugation techniques. In this review, we introduce novel nanomaterials (e.g., carbon nanotube, graphene, indium tin oxide, nanowire and metallic nanoparticles) in order to construct a high-performance electrode. Also, we describe how to increase the number of signal tracers by employing nanomaterials as carriers and making the polymeric enzyme complex associated with redox cycling for signal amplification. The pros and cons of each method are considered throughout this review. We expect that these reviewed strategies for signal enhancement will be applied to the next versions of lateral-flow paper chromatography and microfluidic immunosensor, which are considered the most practical POCT biosensor platforms. PMID- 29329277 TI - Synthesis, Structural Characterization, Antimicrobial Activity, and In Vitro Biocompatibility of New Unsaturated Carboxylate Complexes with 2,2'-Bipyridine. AB - The synthesis, structural characterization, cytotoxicity, and antimicrobial properties of four new complexes formed by employing acrylate anion and 2,2' bipyridine are reported herein. X-ray crystallography revealed the trinuclear nature of [Mn3(2,2'-bipy)2(C3H3O2)6] (1), meanwhile complexes with general formula [M(2,2'-bipy)(C3H3O2)2(H2O)x]?yH2O ((2) M: Ni, x = 1, y = 0; (3) M: Cu, x = 1, y = 0; (4) M: Zn, x = 0, y = 1; 2,2'-bipy: 2,2'-bipyridine; C3H3O2: acrylate anion) were shown to be mononuclear. The lowest minimum inhibitory concentration (MIC) of 128 MUg mL-1 was recorded for all four tested complexes against Candida albicans, for complex (3) against Escherichia coli, and for complex (4) against Staphylocococcus aureus. Compounds (3) and (4) were also potent efflux pumps activity inhibitors (EPI), proving their potential for use in synergistic combinations with antibiotics. Complexes (1)-(4) revealed that they were not cytotoxic to HCT-8 cells. They also proved to interfere with the cellular cycle of tumour HCT-8 cells by increasing the number of cells found in the S and G2/M phases. Taken together, these results demonstrate the potential of zinc and copper complexes for use in the development of novel antimicrobial and anti proliferative agents. PMID- 29329276 TI - The Safety of the Neighborhood Environment and Physical Activity in Czech and Polish Adolescents. AB - (1) Background: An increase in or at least the sustainment of walking activities across a wide section of the population is a crucial health-related task for Central and East European countries. The aim of this study was to assess the associations between adolescents' walking activities and various levels of perceived safety of the built environment in differing socio-demographic backgrounds of Poland and the Czech Republic. Furthermore, we aimed to determine major moderators affecting the walking habits of adolescents in areas with different levels of walkability. (2) Methods: The surveys were conducted during the 2008-2009 and 2013-2014 school years in 24 Polish and 35 Czech secondary schools, with a sample of 2001 adolescents. All participants completed the International Physical Activity Questionnaire-Long Form and the NEWS-Abbreviated. Selected students took part in objective weekly monitoring of physical activity (PA). (3) Results: Boys and girls who perceived their neighborhood environment as the safest were significantly more likely to meet the recommendations for leisure time walking. Adolescents from the safest environment achieved 11,024 steps/day on average, while those from the least safe environment achieved 9686 steps/day. (4) Conclusions: A safe neighborhood environment significantly predicts walking activities among girls. Environmental safety improvement can support the active transport and better use of leisure time PA. PMID- 29329278 TI - T-DNA Tagging-Based Gain-of-Function of OsHKT1;4 Reinforces Na Exclusion from Leaves and Stems but Triggers Na Toxicity in Roots of Rice Under Salt Stress. AB - The high affinity K+ transporter 1;4 (HKT1;4) in rice (Oryza sativa), which shows Na+ selective transport with little K+ transport activity, has been suggested to be involved in reducing Na in leaves and stems under salt stress. However, detailed physiological roles of OsHKT1;4 remain unknown. Here, we have characterized a transfer DNA (T-DNA) insertion mutant line of rice, which overexpresses OsHKT1;4, owing to enhancer elements in the T-DNA, to gain an insight into the impact of OsHKT1;4 on salt tolerance of rice. The homozygous mutant (the O/E line) accumulated significantly lower concentrations of Na in young leaves, stems, and seeds than the sibling WT line under salt stress. Interestingly, however, the mutation rendered the O/E plants more salt sensitive than WT plants. Together with the evaluation of biomass of rice lines, rhizosphere acidification assays using a pH indicator bromocresol purple and 22NaCl tracer experiments have led to an assumption that roots of O/E plants suffered heavier damages from Na which excessively accumulated in the root due to increased activity of Na+ uptake and Na+ exclusion in the vasculature. Implications toward the application of the HKT1-mediated Na+ exclusion system to the breeding of salt tolerant crop cultivars will be discussed. PMID- 29329279 TI - Diosgenin Protects Rats from Myocardial Inflammatory Injury Induced by Ischemia Reperfusion. AB - BACKGROUND Diosgenin, a phytosteroid sapogenin, has anti-inflammatory properties shown to reduce myocardial ischemia-reperfusion injury (MIRI). However, the specific mechanism by which this is achieved is not clear. This study investigated the protective effects of diosgenin on myocardial ischemia/reperfusion (I/R) and the potential anti-inflammatory mechanisms. MATERIAL AND METHODS Healthy adult male SD rats, body weight (b.w.) 250-280 g, were used to model ischemia-reperfusion injury (IRI) and were administered diosgenin (50 mg/kg and 100 mg/kg b.w.) intragastrically for 4 consecutive weeks before surgery. The left anterior descending artery (LAD) was ligated to induce myocardial ischemia for 30 min and reperfusion for 30 min, 60 min, and 120 min while relevant indicators were detected. RESULTS Both 50 mg and 100 mg diosgenin oral administration increased left ventricular developed pressure (LVDP) and maximum changing rate of ventricular pressure (+/-dp/dtmax), decreased left ventricular end-diastolic pressure (LVEDP), and myocardial enzyme markers. TTC staining suggested that diosgenin reduced myocardial infarct size in the rat model. Pathological results showed that myocardial ischemia and inflammation were alleviated by diosgenin. In addition, the increased expression of tumor necrosis factor-alpha (TNF-alpha), interleukin-1 beta (IL-1beta) in serum, and myeloperoxidase (MPO) in myocardium were significantly suppressed by diosgenin administration. Diosgenin further inhibited the phosphorylation of transcription factor NF-kappaB and modulated the expression of downstream inflammatory cytokines by regulating the activation of p38-MAPK and JNK pathways. CONCLUSIONS Results demonstrate diosgenin plays an anti-inflammatory role in the protection of MIRI through regulation of p38-MAPK and JNK pathways and phosphorylation of NF kappaB. PMID- 29329281 TI - Early career investigator highlight: April. PMID- 29329280 TI - Status of HIV Epidemic Control Among Adolescent Girls and Young Women Aged 15-24 Years - Seven African Countries, 2015-2017. AB - In 2016, an estimated 1.5 million females aged 15-24 years were living with human immunodeficiency virus (HIV) infection in Eastern and Southern Africa, where the prevalence of HIV infection among adolescent girls and young women (3.4%) is more than double that for males in the same age range (1.6%) (1). Progress was assessed toward the Joint United Nations Programme on HIV/AIDS (UNAIDS) 2020 targets for adolescent girls and young women in sub-Saharan Africa (90% of those with HIV infection aware of their status, 90% of HIV-infected persons aware of their status on antiretroviral treatment [ART], and 90% of those on treatment virally suppressed [HIV viral load <1,000 HIV RNA copies/mL]) (2) using data from recent Population-based HIV Impact Assessment (PHIA) surveys in seven countries. The national prevalence of HIV infection in adolescent girls and young women aged 15-24 years, the percentage who were aware of their status, and among those persons who were aware, the percentage who had achieved viral suppression were calculated. The target for viral suppression among all persons with HIV infection is 73% (the product of 90% x 90% x 90%). Among all seven countries, the prevalence of HIV infection among adolescent girls and young women was 3.6%; among those in this group, 46.3% reported being aware of their HIV-positive status, and 45.0% were virally suppressed. Sustained efforts by national HIV and public health programs to diagnose HIV infection in adolescent girls and young women as early as possible to ensure rapid initiation of ART should help achieve epidemic control among adolescent girls and young women. PMID- 29329282 TI - Induction of high-mobility group Box-1 in vitro and in vivo by respiratory syncytial virus. AB - BackgroundDespite decades that have passed since its discovery, accurate biomarkers of respiratory syncytial virus (RSV) disease activity and effective therapeutic strategies are still lacking. The high-mobility group box type 1 (HMGB1) protein has been proposed as a possible link between RSV and immune system, but only limited information is currently available to support this hypothesis.MethodsExpression of HMGB1 gene and protein was analyzed by quantitative PCR, enzyme-linked immunosorbent assay (ELISA), western blot, immunocytochemistry, and confocal microscopy in immortalized and primary human bronchial epithelial cells, as well as in rat pup lungs. The role of HMGB1 in RSV infection was explored using glycyrrhizin, a selective HMGB1 inhibitor.ResultsRSV infection strongly induced HMGB1 expression both in vitro and in vivo. Glycyrrhizin dose-dependently inhibited HMGB1 upregulation in both RSV-infected immortalized and primary human bronchial epithelial cells, and this effect was associated with significant reduction of viral replication.ConclusionOur data suggest that HMGB1 expression increases during RSV replication. This seems to have a critical pathogenic role as its selective inhibition virtually modified the infection. These observations provide further insight into the pathophysiology of RSV infection and uncover a potential biomarker and therapeutic target for the most common respiratory infection of infancy. PMID- 29329283 TI - Modeling the assembly order of multimeric heteroprotein complexes. AB - Protein-protein interactions are the cornerstone of numerous biological processes. Although an increasing number of protein complex structures have been determined using experimental methods, relatively fewer studies have been performed to determine the assembly order of complexes. In addition to the insights into the molecular mechanisms of biological function provided by the structure of a complex, knowing the assembly order is important for understanding the process of complex formation. Assembly order is also practically useful for constructing subcomplexes as a step toward solving the entire complex experimentally, designing artificial protein complexes, and developing drugs that interrupt a critical step in the complex assembly. There are several experimental methods for determining the assembly order of complexes; however, these techniques are resource-intensive. Here, we present a computational method that predicts the assembly order of protein complexes by building the complex structure. The method, named Path-LzerD, uses a multimeric protein docking algorithm that assembles a protein complex structure from individual subunit structures and predicts assembly order by observing the simulated assembly process of the complex. Benchmarked on a dataset of complexes with experimental evidence of assembly order, Path-LZerD was successful in predicting the assembly pathway for the majority of the cases. Moreover, when compared with a simple approach that infers the assembly path from the buried surface area of subunits in the native complex, Path-LZerD has the strong advantage that it can be used for cases where the complex structure is not known. The path prediction accuracy decreased when starting from unbound monomers, particularly for larger complexes of five or more subunits, for which only a part of the assembly path was correctly identified. As the first method of its kind, Path-LZerD opens a new area of computational protein structure modeling and will be an indispensable approach for studying protein complexes. PMID- 29329284 TI - Identification of an elaborate NK-specific system regulating HLA-C expression. AB - The HLA-C gene appears to have evolved in higher primates to serve as a dominant source of ligands for the KIR2D family of inhibitory MHC class I receptors. The expression of NK cell-intrinsic MHC class I has been shown to regulate the murine Ly49 family of MHC class I receptors due to the interaction of these receptors with NK cell MHC in cis. However, cis interactions have not been demonstrated for the human KIR and HLA proteins. We report the discovery of an elaborate NK cell specific system regulating HLA-C expression, indicating an important role for HLA C in the development and function of NK cells. A large array of alternative transcripts with differences in intron/exon content are generated from an upstream NK-specific HLA-C promoter, and exon content varies between HLA-C alleles due to SNPs in splice donor/acceptor sites. Skipping of the first coding exon of HLA-C generates a subset of untranslatable mRNAs, and the proportion of untranslatable HLA-C mRNA decreases as NK cells mature, correlating with increased protein expression by mature NK cells. Polymorphism in a key Ets binding site of the NK promoter has generated HLA-C alleles that lack significant promoter activity, resulting in reduced HLA-C expression and increased functional activity. The NK-intrinsic regulation of HLA-C thus represents a novel mechanism controlling the lytic activity of NK cells during development. PMID- 29329285 TI - A direct interaction of cholesterol with the dopamine transporter prevents its out-to-inward transition. AB - Monoamine transporters (MATs) carry out neurotransmitter reuptake from the synaptic cleft, a key step in neurotransmission, which is targeted in the treatment of neurological disorders. Cholesterol (CHOL), a major component of the synaptic plasma membrane, has been shown to exhibit a modulatory effect on MATs. Recent crystal structures of the dopamine transporter (DAT) revealed the presence of two conserved CHOL-like molecules, suggesting a functional protein-CHOL direct interaction. Here, we present extensive atomistic molecular dynamics (MD) simulations of DAT in an outward-facing conformation. In the absence of bound CHOL, DAT undergoes structural changes reflecting early events of dopamine transport: transition to an inward-facing conformation. In contrast, in the presence of bound CHOL, these conformational changes are inhibited, seemingly by an immobilization of the intracellular interface of transmembrane helix 1a and 5 by CHOL. We also provide evidence, from coarse grain MD simulations that the CHOL sites observed in the DAT crystal structures are preserved in all human monoamine transporters (dopamine, serotonin and norepinephrine), suggesting that our findings might extend to the entire family. PMID- 29329286 TI - Is the proportional recovery rule applicable to the lower limb after a first-ever ischemic stroke? AB - OBJECTIVE: To investigate (a) the applicability of the proportional recovery rule of spontaneous neurobiological recovery to motor function of the paretic lower extremity (LE); and (b) the presence of fitters and non-fitters of this prognostic rule poststroke. When present, the clinical threshold for fitting nor non-fitting would be determined, as well as within-subject generalizability to the paretic upper extremity (UE). METHODS: Prospective cohort study in which the Fugl-Meyer Assessment (FMA)-LE and FMA-UE were measured <72 hours and 6 months poststroke. Predicted maximum potential recovery was defined as [FMA-LEmax-FMA LEinitial = 34 -FMA-LEinitial]. Hierarchical clustering in 202 first-ever ischemic stroke patients distinguished between fitting and not fitting the rule. Descriptive statistics determined whether fitters and non-fitters for LE were the same persons as for UE. RESULTS: 175 (87%) patients fitted the FMA-LE recovery rule. The observed average improvement of the fitters was ~64% of the predicted maximum potential recovery. In the non-fitter group, the maximum initial FMA-LE score was 13 points. Fifty-one out of 78 patients (~65%) who scored below the identified 14-point threshold at baseline fitted the FMA-LE rule. Non-fitters were more severely affected than fitters. All non-fitters of the FMA-LE rule did also not fit the proportional recovery rule for FMA-UE. CONCLUSIONS: Proportional recovery seems to be consistent within subjects across LE and UE motor impairment at the hemiplegic side in first-ever ischemic hemispheric stroke subjects. Future studies should investigate prospectively distinguishing between fitters and not fitters within the subgroup of patients who have initial low FMA-LE scores. Subsequently, patients could be stratified based on fitting or not fitting the recovery rule as this would impact rehabilitation management and trial design. PMID- 29329287 TI - Isolation and complete genome analysis of neurotropic dengue virus serotype 3 from the cerebrospinal fluid of an encephalitis patient. AB - Although neurological manifestations associated with dengue viruses (DENV) infection have been reported, there is very limited information on the genetic characteristics of neurotropic DENV. Here we describe the isolation and complete genome analysis of DENV serotype 3 (DENV-3) from cerebrospinal fluid of an encephalitis paediatric patient in Jakarta, Indonesia. Next-generation sequencing was employed to deduce the complete genome of the neurotropic DENV-3 isolate. Based on complete genome analysis, two unique and nine uncommon amino acid changes in the protein coding region were observed in the virus. A phylogenetic tree and molecular clock analysis revealed that the neurotropic virus was a member of Sumatran-Javan clade of DENV-3 genotype I and shared a common ancestor with other isolates from Jakarta around 1998. This is the first report of neurotropic DENV-3 complete genome analysis, providing detailed information on the genetic characteristics of this virus. PMID- 29329288 TI - Soil-transmitted helminth infection, loss of education and cognitive impairment in school-aged children: A systematic review and meta-analysis. AB - BACKGROUND: Evidence of an adverse influence of soil transmitted helminth (STH) infections on cognitive function and educational loss is equivocal. Prior meta analyses have focused on randomized controlled trials only and have not sufficiently explored the potential for disparate influence of STH infection by cognitive domain. We re-examine the hypothesis that STH infection is associated with cognitive deficit and educational loss using data from all primary epidemiologic studies published between 1992 and 2016. METHODS: Medline, Biosis and Web of Science were searched for original studies published in the English language. Cognitive function was defined in four domains (learning, memory, reaction time and innate intelligence) and educational loss in two domains (attendance and scholastic achievement). Pooled effect across studies were calculated as standardized mean differences (SMD) to compare cognitive and educational measures for STH infected/non-dewormed children versus STH uninfected /dewormed children using Review Manager 5.3. Sub-group analyses were implemented by study design, risk of bias (ROB) and co-prevalence of Schistosoma species infection. Influential studies were excluded in sensitivity analysis to examine stability of pooled estimates. FINDINGS: We included 36 studies of 12,920 children. STH infected/non-dewormed children had small to moderate deficits in three domains-learning, memory and intelligence (SMD: -0.44 to -0.27, P<0.01 0.03) compared to STH-uninfected/dewormed children. There were no differences by infection/treatment status for reaction time, school attendance and scholastic achievement (SMD: -0.26 to -0.16, P = 0.06-0.19). Heterogeneity of the pooled effects in all six domains was high (P<0.01; I2 = 66-99%). Application of outlier treatment reduced heterogeneity in learning domain (P = 0.12; I2 = 33%) and strengthened STH-related associations in all domains but intelligence (SMD: 0.20, P = 0.09). Results varied by study design and ROB. Among experimental intervention studies, there was no association between STH treatment and educational loss/performance in tests of memory, reaction time and innate intelligence (SMD: -0.27 to 0.17, P = 0.18-0.69). Infection-related deficits in learning persisted within design/ROB levels (SMD: -0.37 to -52, P<0.01) except for pre-vs post intervention design (n = 3 studies, SMD = -0.43, P = 0.47). Deficits in memory, reaction time and innate intelligence persisted within observational studies (SMD: -0.23 to -0.38, all P<0.01) and high ROB strata (SMD: 0.37 to -0.83, P = 0.07 to <0.01). Further, in Schistosoma infection co-prevalent settings, associations were generally stronger and statistically robust for STH related deficits in learning, memory and reaction time tests(SMD:-0.36 to -0.55, P = 0.003-0.02). STH-related deficits in school attendance and scholastic achievement was noted in low (SMD:-0.57, P = 0.05) and high ROB strata respectively. INTERPRETATION: We provide evidence of superior performance in five of six educational and cognitive domains assessed for STH uninfected/dewormed versus STH infected/not-dewormed school-aged children from helminth endemic regions. Cautious interpretation is warranted due to high ROB in some of the primary literature and high between study variability in most domains. Notwithstanding, this synthesis provides empirical support for a cognitive and educational benefit of deworming. The benefit of deworming will be enhanced by strategically employing, integrated interventions. Thus, multi-pronged inter sectoral strategies that holistically address the environmental and structural roots of child cognitive impairment and educational loss in the developing world may be needed to fully realize the benefit of mass deworming programs. PMID- 29329289 TI - Burkholderia pseudomallei modulates host iron homeostasis to facilitate iron availability and intracellular survival. AB - BACKGROUND: The control over iron homeostasis is critical in host-pathogen interaction. Iron plays not only multiple roles for bacterial growth and pathogenicity, but also for modulation of innate immune responses. Hepcidin is a key regulator of host iron metabolism triggering degradation of the iron exporter ferroportin. Although iron overload in humans is known to increase susceptibility to Burkholderia pseudomallei, it is unclear how the pathogen competes with the host for the metal during infection. This study aimed to investigate whether B. pseudomallei, the causative agent of melioidosis, modulates iron balance and how regulation of host cell iron content affects intracellular bacterial proliferation. PRINCIPAL FINDINGS: Upon infection of primary macrophages with B. pseudomallei, expression of ferroportin was downregulated resulting in higher iron availability within macrophages. Exogenous modification of iron export function by hepcidin or iron supplementation by ferric ammonium citrate led to increased intracellular iron pool stimulating B. pseudomallei growth, whereas the iron chelator deferoxamine reduced bacterial survival. Iron-loaded macrophages exhibited a lower expression of NADPH oxidase, iNOS, lipocalin 2, cytokines and activation of caspase-1. Infection of mice with the pathogen caused a diminished hepatic ferroportin expression, higher iron retention in the liver and lower iron levels in the serum (hypoferremia). In vivo administration of ferric ammonium citrate tended to promote the bacterial growth and inflammatory response, whereas limitation of iron availability significantly ameliorated bacterial clearance, attenuated serum cytokine levels and improved survival of infected mice. CONCLUSIONS: Our data indicate that modulation of the cellular iron balance is likely to be a strategy of B. pseudomallei to improve iron acquisition and to restrict antibacterial immune effector mechanisms and thereby to promote its intracellular growth. Moreover, we provide evidence that changes in host iron homeostasis can influence susceptibility to melioidosis, and suggest that iron chelating drugs might be an additional therapeutic option. PMID- 29329290 TI - MORC2B is essential for meiotic progression and fertility. AB - The microrchidia (MORC) family proteins are chromatin-remodelling factors and function in diverse biological processes such as DNA damage response and transposon silencing. Here, we report that mouse Morc2b encodes a functional germ cell-specific member of the MORC protein family. Morc2b arose specifically in the rodent lineage through retrotransposition of Morc2a during evolution. Inactivation of Morc2b leads to meiotic arrest and sterility in both sexes. Morc2b-deficient spermatocytes and oocytes exhibit failures in chromosomal synapsis, blockades in meiotic recombination, and increased apoptosis. Loss of MORC2B causes mis-regulated expression of meiosis-specific genes. Furthermore, we find that MORC2B interacts with MORC2A, its sequence paralogue. Our results demonstrate that Morc2b, a relatively recent gene, has evolved an essential role in meiosis and fertility. PMID- 29329294 TI - A two-stage flow-based intrusion detection model for next-generation networks. AB - The next-generation network provides state-of-the-art access-independent services over converged mobile and fixed networks. Security in the converged network environment is a major challenge. Traditional packet and protocol-based intrusion detection techniques cannot be used in next-generation networks due to slow throughput, low accuracy and their inability to inspect encrypted payload. An alternative solution for protection of next-generation networks is to use network flow records for detection of malicious activity in the network traffic. The network flow records are independent of access networks and user applications. In this paper, we propose a two-stage flow-based intrusion detection system for next generation networks. The first stage uses an enhanced unsupervised one-class support vector machine which separates malicious flows from normal network traffic. The second stage uses a self-organizing map which automatically groups malicious flows into different alert clusters. We validated the proposed approach on two flow-based datasets and obtained promising results. PMID- 29329291 TI - Ovule identity mediated by pre-mRNA processing in Arabidopsis. AB - Ovules are fundamental for plant reproduction and crop yield as they are the precursors of seeds. Therefore, ovule specification is a critical developmental program. In Arabidopsis thaliana, ovule identity is redundantly conferred by the homeotic D-class genes SHATTERPROOF1 (SHP1), SHP2 and SEEDSTICK (STK), phylogenetically related to the MADS-domain regulatory gene AGAMOUS (AG), essential in floral organ specification. Previous studies have shown that the HUA PEP activity, comprised of a suite of RNA-binding protein (RBP) encoding genes, regulates AG pre-mRNA processing and thus flower patterning and organ identity. Here, we report that the HUA-PEP activity additionally governs ovule morphogenesis. Accordingly, in severe hua-pep backgrounds ovules transform into flower organ-like structures. These homeotic transformations are most likely due to the dramatic reduction in SHP1, SHP2 and STK activity. Our molecular and genome-wide profiling strategies revealed the accumulation of prematurely terminated transcripts of D-class genes in hua-pep mutants and reduced amounts of their respective functional messengers, which points to pre-mRNA processing misregulation as the origin of the ovule developmental defects in such backgrounds. RNA processing and transcription are coordinated by the RNA polymerase II (RNAPII) carboxyl-terminal domain (CTD). Our results show that HUA PEP activity members can interact with the CTD regulator C-TERMINAL DOMAIN PHOSPHATASE-LIKE1 (CPL1), supporting a co-transcriptional mode of action for the HUA-PEP activity. Our findings expand the portfolio of reproductive developmental programs in which HUA-PEP activity participates, and further substantiates the importance of RNA regulatory mechanisms (pre-mRNA co-transcriptional regulation) for correct gene expression during plant morphogenesis. PMID- 29329292 TI - Transcriptome profiling with focus on potential key genes for wing development and evolution in Megaloprepus caerulatus, the damselfly species with the world's largest wings. AB - The evolution, development and coloration of insect wings remains a puzzling subject in evolutionary research. In basal flying insects such as Odonata, genomic research regarding bauplan evolution is still rare. Here we focus on the world's largest odonate species-the "forest giant" Megaloprepus caerulatus, to explore its potential for looking deeper into the development and evolution of wings. A recently discovered cryptic species complex in this genus previously considered monotypic is characterized by morphological differences in wing shape and color patterns. As a first step toward understanding wing pattern divergence and pathways involved in adaptation and speciation at the genomic level, we present a transcriptome profiling of M. caerulatus using RNA-Seq and compare these data with two other odonate species. The de novo transcriptome assembly consists of 61,560 high quality transcripts and is approximately 93% complete. For almost 75% of the identified transcripts a possible function could be assigned: 48,104 transcripts had a hit to an InterPro protein family or domain, and 28,653 were mapped to a Gene Ontology term. In particular, we focused on genes related to wing development and coloration. The comparison with two other species revealed larva-specific genes and a conserved 'core' set of over 8,000 genes forming orthologous clusters with Ischnura elegans and Ladona fulva. This transcriptome may provide a first point of reference for future research in odonates addressing questions surrounding the evolution of wing development, wing coloration and their role in speciation. PMID- 29329293 TI - Cognitive deficits and educational loss in children with schistosome infection-A systematic review and meta-analysis. AB - BACKGROUND: By means of meta-analysis of information from all relevant epidemiologic studies, we examined the hypothesis that Schistosoma infection in school-aged children (SAC) is associated with educational loss and cognitive deficits. METHODOLOGY/PRINCIPAL FINDINGS: This review was prospectively registered in the PROSPERO database (CRD42016040052). Medline, Biosis, and Web of Science were searched for studies published before August 2016 that evaluated associations between Schistosoma infection and cognitive or educational outcomes. Cognitive function was defined in four domains-learning, memory, reaction time, and innate intelligence. Educational outcome measures were defined as attendance and scholastic achievement. Risk of bias (ROB) was evaluated using the Newcastle Ottawa quality assessment scale. Standardized mean differences (SMD) and 95% confidence intervals (CI) were calculated to compare cognitive and educational measures for Schistosoma infected /not dewormed vs. uninfected/dewormed children. Sensitivity analyses by study design, ROB, and sequential exclusion of individual studies were implemented. Thirty studies from 14 countries, including 38,992 SAC between 5-19 years old, were identified. Compared to uninfected children and children dewormed with praziquantel, the presence of Schistosoma infection and/or non-dewormed status was associated with deficits in school attendance (SMD = 0.36, 95%CI: -0.60, -0.12), scholastic achievement (SMD = -0.58, 95%CI: -0.96, 0.20), learning (SMD = -0.39, 95%CI: -0.70, -0.09) and memory (SMD = -0.28, 95%CI: -0.52, -0.04) tests. By contrast, Schistosoma-infected/non-dewormed and uninfected/dewormed children were similar with respect to performance in tests of reaction time (SMD = -0.06, 95%CI: -0.42, 0.30) and intelligence (SMD = -0.25, 95%CI: -0.57, 0.06). Schistosoma infection-associated deficits in educational measures were robust among observational studies, but not among interventional studies. The significance of infection-associated deficits in scholastic achievement was sensitive to ROB. Schistosoma infection-related deficits in learning and memory tests were invariant by ROB and study design. CONCLUSION/SIGNIFICANCE: Schistosoma infection/non-treatment was significantly associated with educational, learning, and memory deficits in SAC. Early treatment of children in Schistosoma-endemic regions could potentially mitigate these deficits. TRIAL REGISTRATION: ClinicalTrials.gov CRD42016040052. PMID- 29329295 TI - Novel signature fatty acid profile of the giant manta ray suggests reliance on an uncharacterised mesopelagic food source low in polyunsaturated fatty acids. AB - Traditionally, large planktivorous elasmobranchs have been thought to predominantly feed on surface zooplankton during daytime hours. However, the recent application of molecular methods to examine long-term assimilated diets, has revealed that these species likely gain the majority from deeper or demersal sources. Signature fatty acid analysis (FA) of muscle tissue was used to examine the assimilated diet of the giant manta ray Mobula birostris, and then compared with surface zooplankton that was collected during feeding and non-feeding events at two aggregation sites off mainland Ecuador. The FA profiles of M. birostris and surface zooplankton were markedly different apart from similar proportions of arachidonic acid, which suggests daytime surface zooplankton may comprise a small amount of dietary intake for M. birostris. The FA profile of M. birostris muscle was found to be depleted in polyunsaturated fatty acids, and instead comprised high proportions of 18:1omega9 isomers. While 18:1omega9 isomers are not explicitly considered dietary FAs, they are commonly found in high proportions in deep-sea organisms, including elasmobranch species. Overall, the FA profile of M. birostris suggests a diet that is mesopelagic in origin, but many mesopelagic zooplankton species also vertically migrate, staying deep during the day and moving to shallower waters at night. Here, signature FA analysis is unable to resolve the depth at which these putative dietary items were consumed and how availability of this prey may drive distribution and movements of this large filter-feeder. PMID- 29329297 TI - Automated multivariate analysis of multi-sensor data submitted online: Real-time environmental monitoring. AB - A pilot study demonstrating real-time environmental monitoring with automated multivariate analysis of multi-sensor data submitted online has been performed at the cabled LoVe Ocean Observatory located at 258 m depth 20 km off the coast of Lofoten-Vesteralen, Norway. The major purpose was efficient monitoring of many variables simultaneously and early detection of changes and time-trends in the overall response pattern before changes were evident in individual variables. The pilot study was performed with 12 sensors from May 16 to August 31, 2015. The sensors provided data for chlorophyll, turbidity, conductivity, temperature (three sensors), salinity (calculated from temperature and conductivity), biomass at three different depth intervals (5-50, 50-120, 120-250 m), and current speed measured in two directions (east and north) using two sensors covering different depths with overlap. A total of 88 variables were monitored, 78 from the two current speed sensors. The time-resolution varied, thus the data had to be aligned to a common time resolution. After alignment, the data were interpreted using principal component analysis (PCA). Initially, a calibration model was established using data from May 16 to July 31. The data on current speed from two sensors were subject to two separate PCA models and the score vectors from these two models were combined with the other 10 variables in a multi-block PCA model. The observations from August were projected on the calibration model consecutively one at a time and the result was visualized in a score plot. Automated PCA of multi-sensor data submitted online is illustrated with an attached time-lapse video covering the relative short time period used in the pilot study. Methods for statistical validation, and warning and alarm limits are described. Redundant sensors enable sensor diagnostics and quality assurance. In a future perspective, the concept may be used in integrated environmental monitoring. PMID- 29329296 TI - Identification and in silico analysis of functional SNPs of human TAGAP protein: A comprehensive study. AB - Genetic polymorphisms in TAGAP gene have been associated with many diseases including rheumatoid arthritis, multiple sclerosis and other autoimmune disorders. Identifying functional SNPs in such disease associated genes is an uphill task hence before planning larger population study, it is better to scrutinize putative functional SNPs. In this study we used various computational approaches to identify nsSNPs which are deleterious to the structure and/or function of TAGAP protein that might be causing these diseases. Computational analysis was performed by five different in silico tools including SIFT, PROVEAN, PolyPhen-2, PhD-SNP and SNPs&GO. The study concludes that mutations of Glycine -> Glutamic Acid at position 120, Glycine -> Tryptophan at position 141 and Valine > Methionine at position 151 are major mutations in native TAGAP protein which might contribute to its malfunction and ultimately causing disease. The study also proposed 3D structures of native TAGAP protein and its three mutants. Future studies should consider these nsSNPs as main target mutations in various diseases involving TAGAP malfunction. This is the first comprehensive study, where TAGAP gene variants were analyzed using in silico tools hence will be of great help while considering large scale studies and also in developing precision medicines for cure of diseases related to these polymorphisms. Furthermore, animal models of various autoimmune diseases and having these mutations might be of help in exploring their precise roles. PMID- 29329298 TI - Single image super-resolution based on approximated Heaviside functions and iterative refinement. AB - One method of solving the single-image super-resolution problem is to use Heaviside functions. This has been done previously by making a binary classification of image components as "smooth" and "non-smooth", describing these with approximated Heaviside functions (AHFs), and iteration including l1 regularization. We now introduce a new method in which the binary classification of image components is extended to different degrees of smoothness and non smoothness, these components being represented by various classes of AHFs. Taking into account the sparsity of the non-smooth components, their coefficients are l1 regularized. In addition, to pick up more image details, the new method uses an iterative refinement for the residuals between the original low-resolution input and the downsampled resulting image. Experimental results showed that the new method is superior to the original AHF method and to four other published methods. PMID- 29329299 TI - Multi-drug resistant non-typhoidal Salmonella associated with invasive disease in western Kenya. AB - Non-typhoidal Salmonella (NTS) is a leading cause of bloodstream infections in Africa, but the various contributions of host susceptibility versus unique pathogen virulence factors are unclear. We used data from a population-based surveillance platform (population ~25,000) between 2007-2014 and NTS genome sequencing to compare host and pathogen-specific factors between individuals presenting with NTS bacteremia and those presenting with NTS diarrhea. Salmonella Typhimurium ST313 and Salmonella Enteritidis ST11 were the most common isolates. Multi-drug resistant strains of NTS were more commonly isolated from patients presenting with NTS bacteremia compared to NTS diarrhea. This relationship was observed in patients under age five [aOR = 15.16, 95% CI (2.84-81.05), P = 0.001], in patients five years and older, [aOR = 6.70 95% CI (2.25-19.89), P = 0.001], in HIV-uninfected patients, [aOR = 21.61, 95% CI (2.53-185.0), P = 0.005], and in patients infected with Salmonella serogroup B [aOR = 5.96, 95% CI (2.28-15.56), P < 0.001] and serogroup D [aOR = 14.15, 95% CI (1.10-182.7), P = 0.042]. Thus, multi-drug-resistant NTS was strongly associated with bacteremia compared to diarrhea among children and adults. This association was seen in HIV uninfected individuals infected with either S. Typhimurium or S. Enteritidis. Risk of developing bacteremia from NTS infection may be driven by virulence properties of the Salmonella pathogen. PMID- 29329300 TI - Symmetric dimeric bisbenzimidazoles DBP(n) reduce methylation of RARB and PTEN while significantly increase methylation of rRNA genes in MCF-7 cancer cells. AB - BACKGROUND: Hypermethylation is observed in the promoter regions of suppressor genes in the tumor cancer cells. Reactivation of these genes by demethylation of their promoters is a prospective strategy of the anticancer therapy. Previous experiments have shown that symmetric dimeric bisbenzimidazoles DBP(n) are able to block DNA methyltransferase activities. It was also found that DBP(n) produces a moderate effect on the activation of total gene expression in HeLa-TI population containing epigenetically repressed avian sarcoma genome. PRINCIPAL FINDINGS: It is shown that DBP(n) are able to penetrate the cellular membranes and accumulate in breast carcinoma cell MCF-7, mainly in the mitochondria and in the nucleus, excluding the nucleolus. The DBP(n) are non-toxic to the cells and have a weak overall demethylation effect on genomic DNA. DBP(n) demethylate the promoter regions of the tumor suppressor genes PTEN and RARB. DBP(n) promotes expression of the genes RARB, PTEN, CDKN2A, RUNX3, Apaf-1 and APC "silent" in the MCF-7 because of the hypermethylation of their promoter regions. Simultaneously with the demethylation of the DNA in the nucleus a significant increase in the methylation level of rRNA genes in the nucleolus was detected. Increased rDNA methylation correlated with a reduction of the rRNA amount in the cells by 20 30%. It is assumed that during DNA methyltransferase activity inhibition by the DBP(n) in the nucleus, the enzyme is sequestered in the nucleolus and provides additional methylation of the rDNA that are not shielded by DBP(n). CONCLUSIONS/SIGNIFICANCE: It is concluded that DBP (n) are able to accumulate in the nucleus (excluding the nucleolus area) and in the mitochondria of cancer cells, reducing mitochondrial potential. The DBP (n) induce the demethylation of a cancer cell's genome, including the demethylation of the promoters of tumor suppressor genes. DBP (n) significantly increase the methylation of ribosomal RNA genes in the nucleoli. Therefore the further study of these compounds is needed; it could lead to the creation of new anticancer agents. PMID- 29329301 TI - Estimated mortality on HIV treatment among active patients and patients lost to follow-up in 4 provinces of Zambia: Findings from a multistage sampling-based survey. AB - BACKGROUND: Survival represents the single most important indicator of successful HIV treatment. Routine monitoring fails to capture most deaths. As a result, both regional assessments of the impact of HIV services and identification of hotspots for improvement efforts are limited. We sought to assess true mortality on treatment, characterize the extent under-reporting of mortality in routine health information systems in Zambia, and identify drivers of mortality across sites and over time using a multistage, regionally representative sampling approach. METHODS AND FINDINGS: We enumerated all HIV infected adults on antiretroviral therapy (ART) who visited any one of 64 facilities across 4 provinces in Zambia during the 24-month period from 1 August 2013 to 31 July 2015. We identified a probability sample of patients who were lost to follow-up through selecting facilities probability proportional to size and then a simple random sample of lost patients. Outcomes among patients lost to follow-up were incorporated into survival analysis and multivariate regression through probability weights. Of 165,464 individuals (64% female, median age 39 years (IQR 33-46), median CD4 201 cells/mm3 (IQR 111-312), the 2-year cumulative incidence of mortality increased from 1.9% (95% CI 1.7%-2.0%) to a corrected rate of 7.0% (95% CI 5.7%-8.4%) (all ART users) and from 2.1% (95% CI 1.8%-2.4%) to 8.3% (95% CI 6.1%-10.7%) (new ART users). Revised provincial mortality rates ranged from 3-9 times higher than naive rates for new ART users and were lowest in Lusaka Province (4.6 per 100 person-years) and highest in Western Province (8.7 per 100 person-years) after correction. Corrected mortality rates varied markedly by clinic, with an IQR of 3.5 to 7.5 deaths per 100 person-years and a high of 13.4 deaths per 100 person years among new ART users, even after adjustment for clinical (e.g., pretherapy CD4) and contextual (e.g., province and clinic size) factors. Mortality rates (all ART users) were highest year 1 after treatment at 4.6/100 person-years (95% CI 3.9-5.5), 2.9/100 person-years (95% CI 2.1-3.9) in year 2, and approximately 1.6% per year through 8 years on treatment. In multivariate analysis, patient level factors including male sex and pretherapy CD4 levels and WHO stage were associated with higher mortality among new ART users, while male sex and HIV disclosure were associated with mortality among all ART users. In both cases, being late (>14 days late for appointment) or lost (>90 days late for an appointment) was associated with deaths. We were unable to ascertain the vital status of about one-quarter of those lost and selected for tracing and did not adjudicate causes of death. CONCLUSIONS: HIV treatment in Zambia is not optimally effective. The high and sustained mortality rates and marked under-reporting of mortality at the provincial-level and unexplained heterogeneity between regions and sites suggest opportunities for the use of corrected mortality rates for quality improvement. A regionally representative sampling-based approach can bring gaps and opportunities for programs into clear epidemiological focus for local and global decision makers. PMID- 29329302 TI - Phylogeography and conservation genetics of the rare and relict Bretschneidera sinensis (Akaniaceae). AB - Bretschneidera sinensis, a class-I protected wild plant in China, is a relic of the ancient Tertiary tropical flora endemic to Asia. However, little is known about its genetics and phylogeography. To elucidate the current phylogeographic patterns and infer the historical population dynamics of B. sinensis, and to make recommendations for its conservation, three non-coding regions of chloroplast DNA (trnQ-rps16, rps8-rps11, and trnT-trnL) were amplified and sequenced across 256 individuals from 23 populations of B. sinensis, spanning 10 provinces of China. We recognized 13 haplotypes, demonstrating relatively high total haplotype diversity (hT = 0.739). Almost all of the variation existed among populations (98.09%, P < 0.001), but that within populations was low (1.91%, P < 0.001). Strong genetic differentiation was detected among populations (GST = 0.855, P < 0.001) with limited estimations of seed flow (Nm = 0.09), indicating that populations were strongly isolated from one another. According to SAMOVA analysis, populations of B. sinensis in China could be divided into five geographic groups: (1) eastern Yunnan to western Guangxi; (2) Guizhou-Hunan Hubei; (3) central Guangdong; (4) northwestern Guangdong; and (5) the Luoxiao Nanling-Wuyi -Yangming Mountain. Network analysis showed that the most ancestral haplotypes were located in the first group, i.e., the eastern Yungui Plateau and in eastern Yunnan, which is regarded as a putative glacial refugia for B. sinensis in China. B. sinensis may have expanded its range eastward from these refugia and experienced bottleneck or founder effects in southeastern China. Populations in Liping (Guizhou Province), Longsheng (Guangxi Province), Huizhou (Guangdong Province), Chongyi (Jiangxi Province), Dong-an (Hunan Province), Pingbian (Yunnan Province) and Xinning (Hunan Province) are proposed as the priority protection units. PMID- 29329303 TI - Efficacy of lateral- versus medial-approach hip joint capsule denervation as surgical treatments of the hip joint pain; a neuronal tract tracing study in the sheep. AB - OBJECTIVE: To evaluate efficacy of denervation of the of the hip joint capsule (HJC), as a treatment of hip joint pain. Specifically, we tested the hypothesis that HJC denervation will significantly reduce the number of sensory neurons innervating the capsule. STUDY DESIGN: Denervation of the HJC from a medial or lateral approach was followed by retrograde tracing of sensory neurons innervating the capsule. ANIMALS: Twenty adult male sheep (30-40 kg of body weight; Polish merino breed) were used in the study. METHODS: The hip joint was denervated from medial (n = 5) or lateral (n = 5) surgical approaches. Immediately after denervation, the retrograde neural tract tracer Fast Blue (FB) was injected into the HJC. An additional ten animals (n = 5 for medial and n = 5 for lateral approach) received the same treatment without HJC denervation to provide the appropriate controls. RESULTS: Results of the study revealed that the vast majority of retrogradely labelled sensory neurons innervating the HJC originate from fifth lumbar to second sacral dorsal root ganglia. Both the medial and the lateral denervations significantly reduced the number of sensory neurons innervating the HJC (39.2% and 69.0% reduction respectively). CONCLUSIONS: These results show that denervation of the HJC is an effective surgical procedure for reduction of the sensory neuronal input to the HJC. Moreover, the lateral approach was found to be significantly more effective for reducing sensory innervation as compared to the medial one. PMID- 29329304 TI - A novel method to test associations between a weighted combination of phenotypes and genetic variants. AB - Many complex diseases like diabetes, hypertension, metabolic syndrome, et cetera, are measured by multiple correlated phenotypes. However, most genome-wide association studies (GWAS) focus on one phenotype of interest or study multiple phenotypes separately for identifying genetic variants associated with complex diseases. Analyzing one phenotype or the related phenotypes separately may lose power due to ignoring the information obtained by combining phenotypes, such as the correlation between phenotypes. In order to increase statistical power to detect genetic variants associated with complex diseases, we develop a novel method to test a weighted combination of multiple phenotypes (WCmulP). We perform extensive simulation studies as well as real data (COPDGene) analysis to evaluate the performance of the proposed method. Our simulation results show that WCmulP has correct type I error rates and is either the most powerful test or comparable to the most powerful test among the methods we compared. WCmulP also has an outstanding performance for identifying single-nucleotide polymorphisms (SNPs) associated with COPD-related phenotypes. PMID- 29329305 TI - Evaluating the efficacy of switching from lamivudine plus adefovir to tenofovir disoproxil fumarate monotherapy in lamivudine-resistant stable hepatitis B patients. AB - BACKGROUND: The efficacy of switching to tenofovir disoproxil fumarate (TDF) monotherapy from lamivudine (LAM) plus adefovir dipivoxil (ADV) combination therapy (stable switching) in patients with LAM-resistant chronic hepatitis B (CHB) and undetectable hepatitis B virus (HBV) DNA is not clear. METHODS: In this non-inferiority trial, patients with LAM-resistant CHB and undetectable serum HBV DNA (<20 IU/mL) for >6 months after initiating LAM+ADV combination therapy were randomized (1:2) either to continue the combination therapy (LAM+ADV group, n = 58) or switched to TDF monotherapy (TDF group, n = 111). They were followed-up with serum biochemistry tests and HBV DNA measurement at 12-week intervals for 96 weeks. The primary endpoint of this study was the proportion of patients with viral reactivation at week 96. RESULTS: Patients with CHB enrolled in this study (n = 169) included 74 patients with compensated liver cirrhosis. In total, 9 patients (4 in the LAM+ADV group and 5 in the TDF group) dropped-out from the study. After a mean follow-up period of 96 weeks, the proportion of HBV reactivation observed was 6.8% (4/58) in the LAM+ADV group and 4.5% (5/111) in the TDF group by using intention-to-treat analysis (difference, -2.3%; 95% CI, 9.84-5.24%). None of the subjects in either group experienced viral reactivation based on per protocol analysis. No serious adverse reactions were observed. In the subgroup analysis for estimated glomerular filtration rate (eGFR) before and after treatment, decreased eGFR was observed only in the TDF group with cirrhosis (85.22 vs. 79.83 mL/min/1.73 m2, p = 0.000). CONCLUSIONS: Stable switching to TDF monotherapy yielded non-inferior results at 96 weeks compared to the results obtained with LAM+ADV combination therapy in patients with LAM-resistant CHB and undetectable HBV DNA. However, TDF monotherapy in patients with cirrhosis requires close attention with respect to renal function. TRIAL REGISTRATION: ClinicalTrials.gov NCT01732367. PMID- 29329306 TI - Lifespan extension without fertility reduction following dietary addition of the autophagy activator Torin1 in Drosophila melanogaster. AB - Autophagy is a highly conserved mechanism for cellular repair that becomes progressively down-regulated during normal ageing. Hence, manipulations that activate autophagy could increase lifespan. Previous reports show that manipulations to the autophagy pathway can result in longevity extension in yeast, flies, worms and mammals. Under standard nutrition, autophagy is inhibited by the nutrient sensing kinase Target of Rapamycin (TOR). Therefore, manipulations of TOR that increase autophagy may offer a mechanism for extending lifespan. Ideally, such manipulations should be specific and minimise off-target effects, and it is important to discover additional methods for 'clean' lifespan manipulation. Here we report an initial study into the effect of up-regulating autophagy on lifespan and fertility in Drosophila melanogaster by dietary addition of Torin1. Activation of autophagy using this selective TOR inhibitor was associated with significantly increased lifespan in both sexes. Torin1 induced a dose-dependent increase in lifespan in once-mated females. There was no evidence of a trade-off between longevity and fecundity or fertility. Torin1-fed females exhibited significantly elevated fecundity, but also elevated egg infertility, resulting in no net change in overall fertility. This supports the idea that lifespan can be extended without trade-offs in fertility and suggest that Torin1 may be a useful tool with which to pursue anti-ageing research. PMID- 29329307 TI - Response time scores on a reflexive attention task predict a child's inattention score from a parent report. AB - Compared to sustained attention, only a small proportion of studies examine reflexive attention as a component of everyday attention. Understanding the significance of reflexive attention to everyday attention may inform better treatments for attentional disorders. Children from a general population (recruited when they were from 9-16 years old) completed an exogenously-cued task measuring the extent to which attention is captured by peripheral cue-target conditions. Parents completed a questionnaire reporting their child's day-to-day attention. A general linear model indicated that parent-rated inattention predicted the increase in response time over baseline when a bright cue preceded the target (whether it was valid or invalid) but not when a dim cue preceded the target. More attentive children had more pronounced response time increases from baseline. Our findings suggest a link between a basic measure of cognition (response time difference scores) and parent observations. The findings have implications for increased understanding of the role of reflexive attention in the everyday attention of children. PMID- 29329309 TI - Time series sightability modeling of animal populations. AB - Logistic regression models-or "sightability models"-fit to detection/non detection data from marked individuals are often used to adjust for visibility bias in later detection-only surveys, with population abundance estimated using a modified Horvitz-Thompson (mHT) estimator. More recently, a model-based alternative for analyzing combined detection/non-detection and detection-only data was developed. This approach seemed promising, since it resulted in similar estimates as the mHT when applied to data from moose (Alces alces) surveys in Minnesota. More importantly, it provided a framework for developing flexible models for analyzing multiyear detection-only survey data in combination with detection/non-detection data. During initial attempts to extend the model-based approach to multiple years of detection-only data, we found that estimates of detection probabilities and population abundance were sensitive to the amount of detection-only data included in the combined (detection/non-detection and detection-only) analysis. Subsequently, we developed a robust hierarchical modeling approach where sightability model parameters are informed only by the detection/non-detection data, and we used this approach to fit a fixed-effects model (FE model) with year-specific parameters and a temporally-smoothed model (TS model) that shares information across years via random effects and a temporal spline. The abundance estimates from the TS model were more precise, with decreased interannual variability relative to the FE model and mHT abundance estimates, illustrating the potential benefits from model-based approaches that allow information to be shared across years. PMID- 29329308 TI - Modeling the effect of boost timing in murine irradiated sporozoite prime-boost vaccines. AB - Vaccination with radiation-attenuated sporozoites has been shown to induce CD8+ T cell-mediated protection against pre-erythrocytic stages of malaria. Empirical evidence suggests that successive inoculations often improve the efficacy of this type of vaccines. An initial dose (prime) triggers a specific cellular response, and subsequent inoculations (boost) amplify this response to create a robust CD8+ T cell memory. In this work we propose a model to analyze the effect of T cell dynamics on the performance of prime-boost vaccines. This model suggests that boost doses and timings should be selected according to the T cell response elicited by priming. Specifically, boosting during late stages of clonal contraction would maximize T cell memory production for vaccines using lower doses of irradiated sporozoites. In contrast, single-dose inoculations would be indicated for higher vaccine doses. Experimental data have been obtained that support theoretical predictions of the model. PMID- 29329310 TI - Medication discrepancies across multiple care transitions: A retrospective longitudinal cohort study in Italy. AB - PURPOSE: Medication discrepancies are defined as unexplained differences among regimens across different sites of care. The problem of medication discrepancies that occur during the entire care pathway from hospital admission to a local care setting discharge (namely all types of settings dedicated to formal care other than hospitals) has received little attention in the medical literature. The present study aims to (1) determine the prevalence of medication discrepancies that occur during the entire care pathway from hospital admission to local care setting discharge, (2) describe the discrepancy and medication type, and (3) identify potential risk factors for experiencing medication discrepancies in patient care transitions. Evidence from an integrated health care system, such as the Italian one, may explain results from other studies in different healthcare systems. METHODS: A retrospective longitudinal cohort study of patients admitted from July 2015 to July 2016 to the Giovanni Bosco Hospital serving Turin, Italy and its surrounding territory was performed. Discrepancies were recorded at the following four care transitions: T1: Hospital admission; T2: Hospital discharge; T3: Admission into local care settings; T4: Discharge from local care settings. All evaluations were based on documented regimens and were performed by a team (doctor, nurse and pharmacists). RESULTS: Of 366 included patients, 25.68% had at least one discrepancy. The most frequent type of discrepancy was from medication omission (N = 74; 71.15%). Only discharge from a long-stay care setting (T4) was significantly associated with the onset of discrepancies (p = 0.045). When considering a lack of adequate documentation, not as missing data but as a discrepancy, 43.72% of patients had at least one discrepancy. CONCLUSIONS: This study suggests that an integrated health care system, such as Italian system, may influence the prevalence of discrepancies, thus highlighting the need for structured multidisciplinary and, if possible, computerized medication reconciliation to prevent medication discrepancies and improve the quality of medical documentation. PMID- 29329311 TI - Harmonized clinical trial methodologies for localized cutaneous leishmaniasis and potential for extensive network with capacities for clinical evaluation. AB - INTRODUCTION: Progress with the treatment of cutaneous leishmaniasis (CL) has been hampered by inconsistent methodologies used to assess treatment effects. A sizable number of trials conducted over the years has generated only weak evidence backing current treatment recommendations, as shown by systematic reviews on old-world and new-world CL (OWCL and NWCL). MATERIALS AND METHODS: Using a previously published guidance paper on CL treatment trial methodology as the reference, consensus was sought on key parameters including core eligibility and outcome measures, among OWCL (7 countries, 10 trial sites) and NWCL (7 countries, 11 trial sites) during two separate meetings. RESULTS: Findings and level of consensus within and between OWCL and NWCL sites are presented and discussed. In addition, CL trial site characteristics and capacities are summarized. CONCLUSIONS: The consensus reached allows standardization of future clinical research across OWCL and NWCL sites. We encourage CL researchers to adopt and adapt as required the proposed parameters and outcomes in their future trials and provide feedback on their experience. The expertise afforded between the two sets of clinical sites provides the basis for a powerful consortium with potential for extensive, standardized assessment of interventions for CL and faster approval of candidate treatments. PMID- 29329312 TI - A computational study of the impact of inhomogeneous internodal lengths on conduction velocity in myelinated neurons. AB - Age-related decreases in the conduction velocity (CV) of action potentials along myelinated axons have been linked to morphological changes in the myelin sheath. In particular, evidence suggests the presence of segmental demyelination and remyelination of axons. In remyelinated segments, the distance between adjacent nodes of Ranvier is typically shorter, and myelin sheaths are thinner. Both experimental and computational evidence indicates that shortened internodes slows CV. In this computational study, we determine the impact of progressive segmental demyelination and remyelination, modeled by shorter internodes with thinner myelin sheaths interspersed with normal ones, upon the CV. We find that CV progressively decreases as the number of remyelinated segments increases, but this decrease is greater than one would expect from an estimate of the CV based merely upon the number of short and long internodes. We trace the additional suppression of the CV to transitions between long and short internodes. Our study presents an important consideration for the precise modeling of neural circuits with remyelinated neurons. PMID- 29329313 TI - Development of a field testing protocol for identifying Deepwater Horizon oil spill residues trapped near Gulf of Mexico beaches. AB - The Deepwater Horizon (DWH) accident, one of the largest oil spills in U.S. history, contaminated several beaches located along the Gulf of Mexico (GOM) shoreline. The residues from the spill still continue to be deposited on some of these beaches. Methods to track and monitor the fate of these residues require approaches that can differentiate the DWH residues from other types of petroleum residues. This is because, historically, the crude oil released from sources such as natural seeps and anthropogenic discharges have also deposited other types of petroleum residues on GOM beaches. Therefore, identifying the origin of these residues is critical for developing effective management strategies for monitoring the long-term environmental impacts of the DWH oil spill. Advanced fingerprinting methods that are currently used for identifying the source of oil spill residues require detailed laboratory studies, which can be cost prohibitive. Also, most agencies typically use untrained workers or volunteers to conduct shoreline monitoring surveys and these worker will not have access to advanced laboratory facilities. Furthermore, it is impractical to routinely fingerprint large volumes of samples that are collected after a major oil spill event, such as the DWH spill. In this study, we propose a simple field testing protocol that can identify DWH oil spill residues based on their unique physical characteristics. The robustness of the method is demonstrated by testing a variety of oil spill samples, and the results are verified by characterizing the samples using advanced chemical fingerprinting methods. The verification data show that the method yields results that are consistent with the results derived from advanced fingerprinting methods. The proposed protocol is a reliable, cost effective, practical field approach for differentiating DWH residues from other types of petroleum residues. PMID- 29329314 TI - Influence of monsoonal winds on chlorophyll-alpha distribution in the Beibu Gulf. AB - The influence of seasonal, monsoonal winds on the temporal and spatial variability of chlorophyll-a (chl-a) in the Beibu Gulf is studied based on long term satellite data of sea surface winds, chl-a concentration and sea surface temperature (SST) and in-situ observations for the years from 2002 to 2014. The analysis results indicated that under northeasterly monsoonal winds, chl-a concentrations were substantially elevated in most area of the Beibu Gulf, with a high chl-a concentration (>2 mg m-3) patch extending southwestward from the coastal water of the northeastern Gulf, consistent with the winter wind pattern. Meanwhile, the spatial distribution of high chl-a concentration is correlated with low SST in the northeastern Gulf. In the southern Gulf, there was generally low chl-a, except in the coastal waters southwest of Hainan Island. Here, the upwelling cold water prevails outside the mouth of the Beibu Gulf, driven by the southwesterly monsoonal winds and the runoff from the Changhua River, as implied by low observed SST. Correlation analysis indicated the chl-a concentration was strongly modulated by wind speed (r = 0.63, p<0.001), particularly in the middle of the northern Gulf and southern Hainan Island (r>0.7, p<0.001). Integrated analysis also showed that stratification is weak and mixing is strong in winter as affected by the high wind speed, which suggests that the wind-induced mixing is a dominant mechanism for entrainment of nutrients and the spatial distribution of chl-a in winter. PMID- 29329315 TI - Role of N-glycosylation in activation of proMMP-9. A molecular dynamics simulations study. AB - Human matrix metalloproteinase proMMP-9 is secreted as latent zymogen, which requires two-steps proteolytic activation. The secreted proMMP-9 is glycosylated at two positions: Asn38 and Asn120 located in the prodomain and catalytic domain, respectively. It has been demonstrated that glycosylation at Asn120 is required for secretion of the enzyme, while the role of Asn38 glycosylation is not well understood, but is usually linked to the activation process. One hypothesis stated that the Asn38 glycosylation might protect against proteolytic activation. However, the activation process occurs with or without the presence of this glycosylation. We conducted molecular dynamics (MD) simulations on the glycosylated and non-glycosylated proMMP-9 to elucidate the effect of Asn38 glycosylation on this two-step activation process. The simulation results suggest that Asn38 glycosylation does not hinder the activation process directly, but induces conformational changes in the vicinity of the first proteolytic region in such a way that E59-M60 cleavage is processed before R106-F107. These results correlate with analysis provided by Boon et al. and experimental data from Ogata et al. who attempted to determine the order of events in activation of proMMP-9. Results from additional MD simulations for the model of glycosylated proMMP-9 bound to galectin-8 N-domain suggest that Gal-8 by interacting with Asn38 glycan might further facilitate processing of the first cleavage between E59-M60. Thus, our simulation results suggest that both Asn38 glycosylation and interaction with Gal-8N may be involved in facilitating and the temporal order of the activation process of pro-MMP9. The aim of this report is to provide an inspiration for future detailed experiments aimed at explaining the role of N-glycosylation in the activation process of prodomain of MMP-9. PMID- 29329316 TI - Electroencephalography power and coherence changes with age and motor skill development across the first half year of life. AB - Existing research in infants has correlated electroencephalography (EEG) measures of power and coherence to cognitive development and to locomotor experience, but only in infants older than 5 months of age. Our goal was to explore the relationship between EEG measures of power and coherence and motor skill development in younger infants who are developing reaching skill. Twenty-one infants with typical development between 38 and 203 days of age participated. Longitudinal EEG recording sessions were recorded in monthly increments, with 3-5 sessions acquired for 19 participants and 1 session for 2 participants, resulting in 71 sessions in total. EEG variables of interest were relative power in the 6-9 Hz range and coherence between selected electrode pairs. We describe the development of the peak in relative power in the 6-9 Hz frequency band of EEG; it is not present around 1 month of age and starts to appear across the following months. Coherence generally increased in the bilateral frontal-parietal networks, while the interhemispheric connectivity in motor cortices generally decreased. The results of this relatively small pilot study provide a foundational description of neural function changes observed as motor skills are changing across the first half year of life. This is a first step in understanding experience-dependent plasticity of the infant brain and has the potential to aid in the early detection of atypical brain development. PMID- 29329317 TI - Oxidative stress caused by activation of NADPH oxidase 4 promotes contrast induced acute kidney injury. AB - Contrast-induced acute kidney injury (CIAKI) is a leading cause of acute kidney injury following radiographic procedures. Intrarenal oxidative stress plays a critical role in CIAKI. Nicotinamide adenine dinucleotide 3-phosphate (NADPH) oxidases (Noxs) are important sources of reactive oxygen species (ROS). Among the various types of Noxs, Nox4 is expressed predominantly in the kidney in rodents. Here, we evaluated the role of Nox4 and benefit of Nox4 inhibition on CIAKI using in vivo and in vitro models. HK-2 cells were treated with iohexol, with or without Nox4 knockdown, or the most specific Nox1/4 inhibitor (GKT137831). Effects of Nox4 inhibition on CIAKI mice were examined. Expression of Nox4 in HK 2 cells was significantly increased following iohexol exposure. Silencing of Nox4 rescued the production of ROS, downregulated pro-inflammatory markers (particularly phospho-p38) implicated in CIAKI, and reduced Bax and caspase 3/7 activity, which resulted in increased cellular survival in iohexol-treated HK-2 cells. Pretreatment with GKT137831 replicated these effects by decreasing levels of phospho-p38. In a CIAKI mouse model, even though the improvement of plasma blood urea nitrogen was unclear, pretreatment with GKT137831 resulted in preserved structure, reduced expression of 8-hydroxy-2'-deoxyguanosine (8OHdG) and kidney injury molecule-1 (KIM-1), and reduced number of TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling)-positive cells. These results suggest Nox4 as a key source of reactive oxygen species responsible for CIAKI and provide a novel potential option for prevention of CIAKI. PMID- 29329318 TI - Erythrocyte Inosine triphosphatase activity: A potential biomarker for adverse events during combination antiretroviral therapy for HIV. AB - The purine analogues tenofovir and abacavir are precursors of potential substrates for the enzyme Inosine 5'-triphosphate pyrophosphohydrolase (ITPase). Here, we investigated the association of ITPase activity and ITPA genotype with the occurrence of adverse events (AEs) during combination antiretroviral therapy (cART) for human immunodeficiency virus (HIV) infection. In 393 adult HIV seropositive patients, AEs were defined as events that led to stop of cART regimen. ITPase activity >=4 mmol IMP/mmol Hb/hour was considered as normal. ITPA genotype was determined by testing two ITPA polymorphisms: c.94C>A (p.Pro32Thr, rs1127354) and c.124+21A>C (rs7270101). Logistic regression analysis determined odds ratios for developing AEs. In tenofovir-containing regimens decreased ITPase activity was associated with less AEs (p = 0.01) and longer regimen duration (p = 0.001). In contrast, in abacavir-containing regimens decreased ITPase activity was associated with more AEs (crude p = 0.02) and increased switching of medication due to AEs (p = 0.03). ITPA genotype wt/wt was significantly associated with an increase in the occurrence of AEs in tenofovir-containing regimens. Decreased ITPase activity seems to be protective against occurrence of AEs in tenofovir-containing cART, while it is associated with an increase in AEs in abacavir-containing regimens. PMID- 29329319 TI - Comparative analysis of uranium bioassociation with halophilic bacteria and archaea. AB - Rock salt represents a potential host rock formation for the final disposal of radioactive waste. The interactions between indigenous microorganisms and radionuclides, e.g. uranium, need to be investigated to better predict the influence of microorganisms on the safety assessment of the repository. Hence, the association process of uranium with two microorganisms isolated from rock salt was comparatively studied. Brachybacterium sp. G1, which was isolated from the German salt dome Gorleben, and Halobacterium noricense DSM15987T, were selected as examples of a moderately halophilic bacterium and an extremely halophilic archaeon, respectively. The microorganisms exhibited completely different association behaviors with uranium. While a pure biosorption process took place with Brachybacterium sp. G1 cells, a multistage association process occurred with the archaeon. In addition to batch experiments, in situ attenuated total reflection Fourier-transform infrared spectroscopy was applied to characterize the U(VI) interaction process. Biosorption was identified as the dominating process for Brachybacterium sp. G1 with this method. Carboxylic functionalities are the dominant interacting groups for the bacterium, whereas phosphoryl groups are also involved in U(VI) association by the archaeon H. noricense. PMID- 29329320 TI - Atypical E2f functions are critical for pancreas polyploidization. AB - The presence of polyploid cells in the endocrine and exocrine pancreas has been reported for four decades. In rodents, pancreatic polyploidization is initiated after weaning and the number of polyploid cells increases with age. Surprisingly the molecular regulators and biological functions of polyploidization in the pancreas are still unknown. We discovered that atypical E2f activity is essential for polyploidization in the pancreas, using an inducible Cre/LoxP approach in new born mice to delete ubiquitously the atypical E2f transcription factors, E2f7 and E2f8. In contrast to its critical role in embryonic survival, conditional deletion of both of both atypical E2fs in newborn mice had no impact on postnatal survival and mice lived until old age. However, deficiency of E2f7 or E2f8 alone was sufficient to suppress polyploidization in the pancreas and associated with only a minor decrease in blood serum levels of glucose, insulin, amylase and lipase under 4 hours starvation condition compared to wildtype littermates. In mice with fewer pancreatic polyploid cells that were fed ad libitum, no major impact on hormones or enzymes levels was observed. In summary, we identified atypical E2fs to be essential for polyploidization in the pancreas and discovered that postnatal induced loss of both atypical E2fs in many organs is compatible with life until old age. PMID- 29329321 TI - Impact of lipopolysaccharide-induced acute inflammation on baroreflex-controlled sympathetic arterial pressure regulation. AB - BACKGROUND: Lipopolysaccharide (LPS) induces acute inflammation, activates sympathetic nerve activity (SNA) and alters hemodynamics. Since the arterial baroreflex is a negative feedback system to stabilize arterial pressure (AP), examining the arterial baroreflex function is a prerequisite to understanding complex hemodynamics under LPS challenge. We investigated the impact of LPS induced acute inflammation on SNA and AP regulation by performing baroreflex open loop analysis. METHODS: Ten anesthetized Sprague-Dawley rats were used. Acute inflammation was induced by an intravenous injection of LPS (60 MUg/kg). We isolated the carotid sinuses from the systemic circulation and controlled carotid sinus pressure (CSP) by a servo-controlled piston pump. We matched CSP to AP to establish the baroreflex closed-loop condition, whereas we decoupled CSP from AP to establish the baroreflex open-loop condition and changed CSP stepwise to evaluate the baroreflex open-loop function. We recorded splanchnic SNA and hemodynamic parameters under baroreflex open- and closed-loop conditions at baseline and at 60 and 120 min after LPS injection. RESULTS: In the baroreflex closed-loop condition, SNA continued to increase after LPS injection, reaching three-fold the baseline value at 120 min (baseline: 94.7 +/- 3.6 vs. 120 min: 283.9 +/- 31.9 a.u.). In contrast, AP increased initially (until 75 min), then declined to the baseline level. In the baroreflex open-loop condition, LPS reset the neural arc (CSP-SNA relationship) upward to higher SNA, while shifted the peripheral arc (SNA-AP relationship) downward at 120 min after the injection. As a result, the operating point determined by the intersection between function curves of neural arc and peripheral arc showed marked sympatho-excitation without substantial changes in AP. CONCLUSIONS: LPS-induced acute inflammation markedly increased SNA via resetting of the baroreflex neural arc, and suppressed the peripheral arc. The balance between the augmented neural arc and suppressed peripheral arc determines SNA and hemodynamics in LPS-induced acute inflammation. PMID- 29329322 TI - Methylene-tetrahydrofolate reductase contributes to allergic airway disease. AB - RATIONALE: Environmental exposures strongly influence the development and progression of asthma. We have previously demonstrated that mice exposed to a diet enriched with methyl donors during vulnerable periods of fetal development can enhance the heritable risk of allergic airway disease through epigenetic changes. There is conflicting evidence on the role of folate (one of the primary methyl donors) in modifying allergic airway disease. OBJECTIVES: We hypothesized that blocking folate metabolism through the loss of methylene-tetrahydrofolate reductase (Mthfr) activity would reduce the allergic airway disease phenotype through epigenetic mechanisms. METHODS: Allergic airway disease was induced in C57BL/6 and C57BL/6Mthfr-/- mice through house dust mite (HDM) exposure. Airway inflammation and airway hyperresponsiveness (AHR) were measured between the two groups. Gene expression and methylation profiles were generated for whole lung tissue. Disease and molecular outcomes were evaluated in C57BL/6 and C57BL/6Mthfr /- mice supplemented with betaine. MEASUREMENTS AND MAIN RESULTS: Loss of Mthfr alters single carbon metabolite levels in the lung and serum including elevated homocysteine and cystathionine and reduced methionine. HDM-treated C57BL/6Mthfr-/ mice demonstrated significantly less airway hyperreactivity (AHR) compared to HDM-treated C57BL/6 mice. Furthermore, HDM-treated C57BL/6Mthfr-/- mice compared to HDM-treated C57BL/6 mice have reduced whole lung lavage (WLL) cellularity, eosinophilia, and Il-4/Il-5 cytokine concentrations. Betaine supplementation reversed parts of the HDM-induced allergic airway disease that are modified by Mthfr loss. 737 genes are differentially expressed and 146 regions are differentially methylated in lung tissue from HDM-treated C57BL/6Mthfr-/- mice and HDM-treated C57BL/6 mice. Additionally, analysis of methylation/expression relationships identified 503 significant correlations. CONCLUSION: Collectively, these findings indicate that the loss of folate as a methyl donor is a modifier of allergic airway disease, and that epigenetic and expression changes correlate with this modification. Further investigation into the mechanisms that drive this observation is warranted. PMID- 29329323 TI - Stroke risk and outcomes in patients with chronic kidney disease or end-stage renal disease: Two nationwide studies. AB - BACKGROUND AND AIMS: Because the risk and outcomes of stroke in patients with chronic kidney disease (CKD) or end-stage renal disease (ESRD) were unclear, we evaluated these risks using a retrospective cohort study and a nested cohort study. METHODS: We used Taiwan's National Health Insurance Research Database to identify 1378 patients aged >=20 years who had ESRD in 2000-2004. An age- and sex matched CKD cohort (n = 5512) and a control cohort (n = 11,024) were selected for comparison. Events of incident stroke were considered as outcome during the follow-up period in 2000-2013, and we calculated adjusted hazard ratios (HR) and 95% CIs of stroke associated with CKD or ESRD. We further used matching procedure with propensity score to estimate the risk of stroke for control group, CKD patients, and EDRD patients. A nested cohort study of 318,638 hospitalized stroke patients between 2000 and 2010 also was conducted to analyze the impact of CKD and ESRD on post-stroke mortality. RESULTS: Before propensity-score matching, the incidences of stroke for controls, CKD patients and ESRD patients were 6.57, 13.3, and 21.7 per 1000 person-years, respectively. Compared with control group, the adjusted HRs of stroke were 1.49 (95% CI, 1.32-1.68) and 2.39 (95% CI, 1.39 2.87) for people with CKD or ESRD respectively, and were significantly higher in both sexes and every age group. After propensity-score matching, the HRs of stroke for patients with CKD and ESRD were 1.51 (95% CI 1.24-1.85) and 2.08 (95% CI 1.32-3.26), respectively, during the follow-up period. Among hospitalized stroke patients, adjusted rate ratio (RR) of post-stroke mortality in CKD and ESRD cohorts were 1.44 (95% CI, 1.33-1.56) and 2.62 (95% CI, 2.43-2.82) respectively compared with control. CONCLUSIONS: CKD and ESRD patient groups thus faced significantly higher risk of stroke and post-stroke mortality. Risk factor identification and preventive strategies are needed to minimize stroke risk and post-stroke mortality in these vulnerable patient groups. PMID- 29329325 TI - Classification of patients with knee osteoarthritis in clinical phenotypes: Data from the osteoarthritis initiative. AB - OBJECTIVES: The existence of phenotypes has been hypothesized to explain the large heterogeneity characterizing the knee osteoarthritis. In a previous systematic review of the literature, six main phenotypes were identified: Minimal Joint Disease (MJD), Malaligned Biomechanical (MB), Chronic Pain (CP), Inflammatory (I), Metabolic Syndrome (MS) and Bone and Cartilage Metabolism (BCM). The purpose of this study was to classify a sample of individuals with knee osteoarthritis (KOA) into pre-defined groups characterized by specific variables that can be linked to different disease mechanisms, and compare these phenotypes for demographic and health outcomes. METHODS: 599 patients were selected from the OAI database FNIH at 24 months' time to conduct the study. For each phenotype, cut offs of key variables were identified matching the results from previous studies in the field and the data available for the sample. The selection process consisted of 3 steps. At the end of each step, the subjects classified were excluded from the further classification stages. Patients meeting the criteria for more than one phenotype were classified separately into a 'complex KOA' group. RESULTS: Phenotype allocation (including complex KOA) was successful for 84% of cases with an overlap of 20%. Disease duration was shorter in the MJD while the CP phenotype included a larger number of Women (81%). A significant effect of phenotypes on WOMAC pain (F = 16.736 p <0.001) and WOMAC physical function (F = 14.676, p < 0.001) was identified after controlling for disease duration. CONCLUSION: This study signifies the feasibility of a classification of KOA subjects in distinct phenotypes based on subgroup-specific characteristics. PMID- 29329324 TI - Variability and cost implications of three generations of the Roche LightCycler(r) 480. AB - Real time PCR has become a dominant method for the highly sensitive detection of pathogens in clinical material. Real time PCR can generate a fluorescence signal by using fluorescence labelled probes, allowing us to detect and semi quantify the amount of amplified DNA. Here we test the variability of the detection system and cost implications of three different versions of the LightCycler(r) 480 (LC480), focusing on the intensity of fluorescence and Cq in monoplex and multiplex rtPCRs. For gastro-intestinal pathogens there was no correlation between the intensity of fluorescence and the Cq value in the different LC480 types. For probes with the dyes FAMTM, HEXTM, Cy5 and Red610 a higher fluorescence intensity was seen in LC480 type II and III compared to LC480 type I. After lowering the probe concentration for the Cy5 dye three-fold (from 0.3MUM to 0.1MUM) the Cq value remains the same and the intensity of fluorescence decreases. For the LC480 type II and III the difference in fluorescence intensity was much more extreme. The concentration of the different labelled probes can be lowered at least six-fold in LC480 type II and III cyclers while maintaining a fluorescence intensity as high as achieved in the LC480 type I with undiluted probe. In conclusion, the strength of the fluorescence signal of the LightCycler(r) 480 type III is superior to that of LightCycler(r) 480 types I and II, allowing the use of lower probe concentrations for all dyes, particularly for the dyes Red610 and Cy5. This results in a two thirds reduction in PCR probe costs. Switching to these newer machines for real-time PCR can reduce dye labelled probe consumption and thus reduce costs significantly. PMID- 29329326 TI - Utilization of peptide phage display to investigate hotspots on IL-17A and what it means for drug discovery. AB - To date, IL-17A antibodies remain the only therapeutic approach to correct the abnormal activation of the IL-17A/IL-17R signaling complex. Why is it that despite the remarkable success of IL-17 antibodies, there is no small molecule antagonist of IL-17A in the clinic? Here we offer a unique approach to address this question. In order to understand the interaction of IL-17A with its receptor, we combined peptide discovery using phage display with HDX, crystallography, and functional assays to map and characterize hot regions that contribute to most of the energetics of the IL-17A/IL-17R interaction. These functional maps are proposed to serve as a guide to aid in the development of small molecules that bind to IL-17A and block its interaction with IL-17RA. PMID- 29329327 TI - Selection of housekeeping genes and demonstration of RNAi in cotton leafhopper, Amrasca biguttula biguttula (Ishida). AB - Amrasca biguttula biguttula (Ishida) commonly known as cotton leafhopper is a severe pest of cotton and okra. Not much is known on this insect at molecular level due to lack of genomic and transcriptomic data. To prepare for functional genomic studies in this insect, we evaluated 15 common housekeeping genes (Tub, B Tub, EF alpha, GADPH, UbiCF, RP13, Ubiq, G3PD, VATPase, Actin, 18s, 28s, TATA, ETF, SOD and Cytolytic actin) during different developmental stages and under starvation stress. We selected early (1st and 2nd), late (3rd and 4th) stage nymphs and adults for identification of stable housekeeping genes using geNorm, NormFinder, BestKeeper and RefFinder software. Based on the different algorithms, RP13 and VATPase are identified as the most suitable reference genes for quantification of gene expression by reverse transcriptase quantitative PCR (RT qPCR). Based on RefFinder which comprehended the results of three algorithms, RP13 in adults, Tubulin (Tub) in late nymphs, 28S in early nymph and UbiCF under starvation stress were identified as the most stable genes. We also developed methods for feeding double-stranded RNA (dsRNA) incorporated in the diet. Feeding dsRNA targeting Snf7, IAP, AQP1, and VATPase caused 56.17-77.12% knockdown of targeted genes compared to control and 16 to 48% mortality of treated insects when compared to control. PMID- 29329328 TI - Early occurrence of inspiratory muscle weakness in Parkinson's disease. AB - INTRODUCTION: In Parkinson's disease (PD), respiratory insufficiency (including functional and muscle disorders) can impact dysarthria and swallowing. Most studies of this topic have been performed retrospectively in populations of patients with advanced PD. The objective of the present study was to characterize lung function (under off-drug conditions) in early-stage PD patients at baseline and then again two years later. METHODS: Forty-one early-stage PD patients (mean +/- SD age: 61.7 +/- 7.7; mean +/- SD disease duration: 1.9 +/- 1.7 years) were prospectively enrolled and compared with 36 age-matched healthy controls. Neurological evaluations and pulmonary function testing were performed in the off drug condition at the inclusion visit and then two years later. RESULTS: Pulmonary function testing did not reveal any restrictive or obstructive disorders; at baseline, inspiratory muscle weakness was the only abnormality observed in the PD group (in 53.7% of the patients, vs. 25% in controls; p = 0.0105). The PD patients had a lower mean maximal inspiratory mouth pressure than controls and a lower sniff nasal inspiratory pressure. Two years after the initiation of chronic treatment with antiparkinsonian medications, the maximal inspiratory mouth pressure and the sniff nasal inspiratory pressure tended to be higher. Lastly, overall motor outcomes were not significantly worse in patients with inspiratory muscle weakness than in patients without inspiratory muscle weakness. CONCLUSION: Inspiratory muscle weakness seems to be common in patients with early-stage PD, and was seen to be stable over a two-year period. Additional long-term follow-up studies are required to specify the impact of this new feature of PD. PMID- 29329329 TI - Prevalence, risk factors and molecular evaluation of hepatitis E virus infection among pregnant women resident in the northern shores of Persian Gulf, Iran. AB - BACKGROUND: Although Iran is reported to be an endemic country for hepatitis E virus (HEV), data on the prevalence of HEV infection among pregnant women are scarce and the epidemiology of HEV is unknown in most parts of the country. Therefore, this study was conducted to elucidate the prevalence, risk factors and genotypic pattern of HEV infection among pregnant women resident in the northern shores of Persian Gulf. This is the first report on the epidemiology of HEV infection among pregnant women in this territory. METHODS: From October 2016 to May 2017, 1331 pregnant women participated in this study. The mean age +/- SD of participants was 27.93+/-5.7 years with a range of 14-45 years. Serum samples of pregnant women were screened for the presence of anti-HEV total antibodies, anti HEV IgG and anti-HEV IgM using commercially available ELISA kits (DIA.PRO, Milan, Italy). All anti-HEV IgG and anti-HEV IgM positive samples were tested for HEV RNA using two independent reverse transcriptase polymerase chain reaction (RT PCR) assays, targeting ORF2 and ORF3 of HEV genome. In addition, 92 anti-HEV seronegative samples as well as 50 pooled seronegative samples were evaluated by two independent RT-PCR assays for validation of results. RESULTS: Of the 1331 pregnant women, 84 women (6.3%, 95% CI: 5.1%-7.7%) were positive for anti-HEV antibodies, of which 83 women had anti-HEV IgG, and 11 women (0.83%, 95% CI: 0.47%-1.47%) had anti-HEV IgM. The highest rate of HEV seroprevalence was observed among Afghan immigrants (68.0%), uneducated pregnant women (46.51%) and those residents in Bushehr city (8.75%). All anti-HEV IgG and/or IgM positive samples were found to be negative for HEV RNA. In addition, all of the evaluated anti-HEV seronegative samples were negative for HEV RNA. HEV seropositivity among pregnant women was statistically associated with age, ethnicity, place of residence, number of pregnancies, and level of education. So that, low education levels, Afghan, residence in Bushehr city, age group >34 years, and more parities were risk factors for exposure to HEV. In contrast, HEV seropositivity was not associated with stage of gestation, history of abortion, and time of sampling. CONCLUSION: The northern shores of Persian Gulf in Iran, with HEV seroprevalence of 6.3%, can be classified as an endemic geographical region for hepatitis E, and residents of Bushehr city, Afghan immigrants and uneducated women are the main at risk populations in this territory. PMID- 29329330 TI - Obesity and abnormal glucose tolerance in offspring of diabetic mothers: A systematic review and meta-analysis. AB - BACKGROUND: Rising prevalence of childhood obesity and type 2 diabetes mellitus (T2DM) is an emerging public health issue. OBJECTIVES: To investigate the association of maternal hyperglycemia exposure during pregnancy with obesity and abnormal glucose tolerance in offspring, and the age at occurrence. METHODS: We searched MEDLINE and EMBASE for observational studies on obesity and diabetes in offspring of diabetic mothers (gestational diabetes mellitus (GDM), type 1 diabetes mellitus (T1DM) and T2DM), and those on non-diabetic mothers. We performed fixed effect meta-analysis for all studies except when heterogeneity was detected. The quality of studies was evaluated using the Risk of Bias Assessment Tool for Nonrandomized Studies (RoBANS). RESULTS: Twenty observational studies were included involving a total of 26,509 children. Offspring of GDM mother had higher BMI z-score in childhood (pooled MD: 0.14, 95%CI: 0.04-0.24, seven studies, 21,691children, low quality of evidence). Offspring of T1DM mothers had higher BMI z-score from prepubertal to adolescent (pooled MD: 0.35, 95% CI: 0.13-0.58, three studies, 844 children, low quality of evidence) compared with control. After adjustment for maternal pre-pregnancy BMI, this association remained in offspring of T1DM, but disappeared in those of GDM mothers. Offspring of GDM mother had higher 2-hour plasma glucose from prepubertal to early adulthood (pooled MD: 0.43 mmol/L, 95% CI: 0.18-0.69, five studies, 890 children), while those of T1DM mothers had higher rate of T2DM in 2-5 years old to early adulthood (pooled odds ratio [OR], 6.10: 95% CI: 1.23-30.37, two studies, 448 children, very low quality of evidence) compared with control. As there was only one study with offspring of T2DM mothers, evidence is sparse. LIMITATIONS: Only observational studies were included, with a few adequately adjusted for covariables. CONCLUSIONS: Exposure to maternal hyperglycemia was associated with offspring obesity and abnormal glucose tolerance especially in offspring of T1DM mothers, but the evidence relies on observational studies with low quality of evidence only. PMID- 29329331 TI - Performance similarities predict collective benefits in dyadic and triadic joint visual search. AB - When humans perform tasks together, they may reach a higher performance in comparison to the best member of a group (i.e., a collective benefit). Earlier research showed that interindividual performance similarities predict collective benefits for several joint tasks. Yet, researchers did not test whether this is the case for joint visuospatial tasks. Also, researchers did not investigate whether dyads and triads reach a collective benefit when they are forbidden to exchange any information while performing a visuospatial task. In this study, participants performed a joint visual search task either alone, in dyads, or in triads, and were not allowed to exchange any information while doing the task. We found that dyads reached a collective benefit. Triads did outperform their best individual member and dyads-yet, they did not outperform the best dyad pairing within the triad. In addition, similarities in performance significantly predicted the collective benefit for dyads and triads. Furthermore, we find that the dyads' and triads' search performances closely match a simulated performance based on the individual search performances, which assumed that members of a group act independently. Overall, the present study supports the view that performance similarities predict collective benefits in joint tasks. Moreover, it provides a basis for future studies to investigate the benefits of exchanging information between co-actors in joint visual search tasks. PMID- 29329332 TI - Co-delivery of a laminin-111 supplemented hyaluronic acid based hydrogel with minced muscle graft in the treatment of volumetric muscle loss injury. AB - Minced muscle autografting mediates de novo myofiber regeneration and promotes partial recovery of neuromuscular strength after volumetric muscle loss injury (VML). A major limitation of this approach is the availability of sufficient donor tissue for the treatment of relatively large VMLs without inducing donor site morbidity. This study evaluated a laminin-111 supplemented hyaluronic acid based hydrogel (HA+LMN) as a putative myoconductive scaffolding to be co delivered with minced muscle grafts. In a rat tibialis anterior muscle VML model, delivery of a reduced dose of minced muscle graft (50% of VML defect) within HA+LMN resulted in a 42% improvement of peak tetanic torque production over unrepaired VML affected limbs. However, the improvement in strength was not improved compared to a 50% minced graft-only control group. Moreover, histological analysis revealed that the improvement in in vivo functional capacity mediated by minced grafts in HA+LMN was not accompanied by a particularly robust graft mediated regenerative response as determined through donor cell tracking of the GFP+ grafting material. Characterization of the spatial distribution and density of macrophage and satellite cell populations indicated that the combination therapy damps the heightened macrophage response while re-establishing satellite content 14 days after VML to a level consistent with an endogenously healing ischemia-reperfusion induced muscle injury. Moreover, regional analysis revealed that the combination therapy increased satellite cell density mostly in the remaining musculature, as opposed to the defect area. Based on the results, the following salient conclusions were drawn: 1) functional recovery mediated by the combination therapy is likely due to a superposition of de novo muscle fiber regeneration and augmented repair of muscle fibers within the remaining musculature, and 2) The capacity for VML therapies to augment regeneration and repair within the remaining musculature may have significant clinical impact and warrants further exploration. PMID- 29329334 TI - Ensemble learning method for the prediction of new bioactive molecules. AB - Pharmacologically active molecules can provide remedies for a range of different illnesses and infections. Therefore, the search for such bioactive molecules has been an enduring mission. As such, there is a need to employ a more suitable, reliable, and robust classification method for enhancing the prediction of the existence of new bioactive molecules. In this paper, we adopt a recently developed combination of different boosting methods (Adaboost) for the prediction of new bioactive molecules. We conducted the research experiments utilizing the widely used MDL Drug Data Report (MDDR) database. The proposed boosting method generated better results than other machine learning methods. This finding suggests that the method is suitable for inclusion among the in silico tools for use in cheminformatics, computational chemistry and molecular biology. PMID- 29329333 TI - Wide-range screening of anti-inflammatory compounds in tomato using LC-MS and elucidating the mechanism of their functions. AB - Obesity-induced chronic inflammation is a key factor in type 2 diabetes. A vicious cycle involving pro-inflammatory mediators between adipocytes and macrophages is a common cause of chronic inflammation in the adipose tissue. Tomato is one of the most popular vegetables and is associated with a reduced risk of diabetes. However, the molecular mechanism underlying the effect of tomato on diabetes is unclear. In this study, we focused on anti-inflammatory compounds in tomato. We found that the extract of tomato reduced plasma glucose and inflammatory markers in mice. We screened anti-inflammatory fractions in tomato using lipopolysaccharide-stimulated RAW264.7 macrophages, and active compounds were estimated by liquid chromatography-mass spectrometry over a wide range. Surprisingly, a large number of compounds including oxylipin and coumarin derivatives were estimated as anti-inflammatory compounds. Especially, 9-oxo octadecadienoic acid and daphnetin suppressed pro-inflammatory cytokines in RAW264.7 macrophages inhibiting mitogen-activated protein kinase phosphorylation and inhibitor of kappa B alpha protein degradation. These findings suggest that tomato containing diverse anti-inflammatory compounds ameliorates chronic inflammation in obese adipose tissue. PMID- 29329336 TI - Effective dispersal and density-dependence in mesophotic macroalgal forests: Insights from the Mediterranean species Cystoseira zosteroides. AB - Dispersal and recruitment are fundamental processes for population recovery following disturbances in sessile species. While both processes are well understood for many terrestrial species, they still remain poorly resolved for some macroalgal species. Here we experimentally investigated the effective dispersal and recruit survival of a mesophotic Mediterranean fucoid, Cystoseira zosteroides. In three isolated populations, four sets of settlement collectors were placed at increasing distances (from 0 to 10 m) and different orientations (North, South, East and West). We observed that effective dispersal was restricted to populations' vicinity, with an average of 6.43 m and not further than 13.33 m, following a Weibull distribution. During their first year of life, survival was up to 50%, but it was lower underneath the adult canopy, suggesting a negative density-dependence. To put our results in a broader context we compared the effective dispersal of other fucoid and kelp species reported in the literature, which confirmed the low dispersal ability of brown algae, in particular for fucoids, with an effective dispersal of few meters. Given the importance of recruitment for the persistence and recovery of populations after disturbances, these results underline the vulnerability of C. zosteroides and other fucoid species to escalating threats. PMID- 29329335 TI - Immunization with gingipain A hemagglutinin domain of Porphyromonas gingivalis induces IgM antibodies binding to malondialdehyde-acetaldehyde modified low density lipoprotein. AB - Treatment of periodontitis has beneficial effects on systemic inflammation markers that relate to progression of atherosclerosis. We aimed to investigate whether immunization with A hemagglutinin domain (Rgp44) of Porphyromonas gingivalis (Pg), a major etiologic agent of periodontitis, would lead to an antibody response cross-reacting with oxidized low-density lipoprotein (OxLDL) and how it would affect the progression of atherosclerosis in low-density lipoprotein receptor-deficient (LDLR-/-) mice. The data revealed a prominent IgM but not IgG response to malondialdehyde-acetaldehyde modified LDL (MAA-LDL) after Rgp44 and Pg immunizations, implying that Rgp44/Pg and MAA adducts may share cross-reactive epitopes that prompt IgM antibody production and consequently confer atheroprotection. A significant negative association was observed between atherosclerotic lesion and plasma IgA to Rgp44 in Rgp44 immunized mice, supporting further the anti-atherogenic effect of Rgp44 immunization. Plasma IgA levels to Rgp44 and to Pg in both Rgp44- and Pg-immunized mice were significantly higher than those in saline control, suggesting that IgA to Rgp44 could be a surrogate marker of immunization in Pg-immunized mice. Distinct antibody responses in plasma IgA levels to MAA-LDL, to Pg lipopolysaccharides (Pg-LPS), and to phosphocholine (PCho) were observed after Rgp44 and Pg immunizations, indicating that different immunogenic components between Rpg44 and Pg may behave differently in regard of their roles in the development of atherosclerosis. Immunization with Rgp44 also displayed atheroprotective features in modulation of plaque size through association with plasma levels of IL-1alpha whereas whole Pg bacteria achieved through regulation of anti-inflammatory cytokine levels of IL-5 and IL-10. The present study may contribute to refining therapeutic approaches aiming to modulate immune responses and inflammatory/anti-inflammatory processes in atherosclerosis. PMID- 29329337 TI - Mitochondrial DNA ancestry, HPV infection and the risk of cervical cancer in a multiethnic population of northeastern Argentina. AB - BACKGROUND: Misiones Province in northeastern Argentina is considered to be a region with a high prevalence of HPV infection and a high mortality rate due to cervical cancer. The reasons for this epidemiological trend are not completely understood. To gain insight into this problem, we explored the relationship between mitochondrial DNA (mtDNA) ancestry, HPV infection, and development of cervical lesions/cancer in women from the city of Posadas in Misiones Province. METHODS: Two hundred and sixty-one women, including 92 cases of patients diagnosed with cervical lesions and 169 controls, were analyzed. mtDNA ancestry was assessed through HVS1 sequencing, while the detection and typing of HPV infection was conducted through nested multiplex PCR analysis. Multivariate logistic regression was conducted with the resulting data to estimate the odds ratios (ORs) adjusted by socio-demographic variables. RESULTS: The study participants showed 68.6% Amerindian, 26.1% European and 5.3% African mtDNA ancestry, respectively. Multiple regression analysis showed that women with African mtDNAs were three times more likely to develop a cervical lesion than those with Native American or European mtDNAs [OR of 3.8 (1.2-11.5) for ancestry and OR of 3.5 (1.0-12.0) for L haplogroups], although the associated p values were not significant when tested under more complex multivariate models. HPV infection and the development of cervical lesions/cancer were significant for all tested models, with the highest OR values for HPV16 [OR of 24.2 (9.3-62.7)] and HPV-58 [OR of 19.0 (2.4-147.7)]. CONCLUSION: HPV infection remains a central risk factor for cervical cancer in the Posadas population. The potential role of African mtDNA ancestry opens a new avenue for future medical association studies in multiethnic populations, and will require further confirmation in large-scale studies. PMID- 29329338 TI - Pharmacoepidemiological assessment of adherence and influencing co-factors among primary open-angle glaucoma patients-An observational cohort study. AB - The goal of this study was to assess the adherence of primary open-angle glaucoma (POAG) patients to medication, and to determine co-factors influencing adherence, using a representative sample of members of the largest German public health insurer. The observational cohort study was based on a longitudinal data set from 2010-2013 and included 250,000 insured persons aged 50 and older with 10,120 diagnosed POAG patients. Uni- and multivariate analysis was performed to investigate several aspects of glaucoma, such as prevalence, adherence, and co factors influencing adherence. The main outcome measured adherence with prescriptions filled within a year. Multivariate panel regression analysis was used to determine the co-factors influencing this adherence. Prevalence of POAG was 3.36% [CI: 3.28-3.43%], with 2.91% [CI: 2.81-3.01%] for males and 3.71% [CI: 3.61-3.81%] for females, increasing with age. The mean level of adherence in terms of prescriptions filled was 66.5% [CI: 65.50-67.60%]. The results of this analysis revealed a significant influence of age, duration of the disease, care need, distance to death, and multimorbidity as co-factors of non-adherence, whereas gender had no influence. The analysis provided detailed information about POAG health care aspects concerning prevalence and adherence. The most endangered risk groups for non-adherence were patients aged 50-59, patients older than 80 years, patients with a longer duration of POAG, patients with care needs, and patients with three or more severe diseases in addition to glaucoma. To know the predictors responsible for an increased risk to develop POAG is of importance for all persons involved in health care management. Therefore effective strategies to increase awareness of patients and medical care personnel about non-adherence and the importance of a regular and continuous medication to avoid further nerve fiber damage and possible blindness have to be developed. PMID- 29329341 TI - Correction: A century of changing flows: Forest management changed flow magnitudes and warming advanced the timing of flow in a southwestern US river. AB - [This corrects the article DOI: 10.1371/journal.pone.0187875.]. PMID- 29329340 TI - Cognitive control moderates parenting stress effects on children's diurnal cortisol. AB - This study investigated associations between parenting stress in parents and self reported stress in children with children's diurnal cortisol secretion and whether these associations are moderated by known stress-regulating capacities, namely child cognitive control. Salivary cortisol concentrations were assessed from awakening to evening on two weekend days from 53 6-to-7-year-old children. Children completed a cognitive control task and a self-report stress questionnaire with an experimenter, while parents completed a parenting stress inventory. Hierarchical, linear mixed effects models revealed that higher parenting stress was associated with overall reduced cortisol secretion in children, and this effect was moderated by cognitive control. Specifically, parenting stress was associated with reduced diurnal cortisol levels in children with lower cognitive control ability and not in children with higher cognitive control ability. There were no effects of self-reported stress in children on their cortisol secretion, presumably because 6-to-7-year-old children cannot yet self-report on stress experiences. Our results suggest that higher cognitive control skills may buffer the effects of parenting stress in parents on their children's stress regulation in middle childhood. This could indicate that training cognitive control skills in early life could be a target to prevent stress-related disorders. PMID- 29329339 TI - Accessibility and contribution to glucan masking of natural and genetically tagged versions of yeast wall protein 1 of Candida albicans. AB - Yeast wall protein 1 (Ywp1) is an abundant glycoprotein of the cell wall of the yeast form of Candida albicans, the most prevalent fungal pathogen of humans. Antibodies that bind to the polypeptide backbone of isolated Ywp1 show little binding to intact yeast cells, presumably because the Ywp1 epitopes are masked by the polysaccharides of the mannoproteins that form the outer layer of the cell wall. Rare cells do exhibit much greater anti-Ywp1 binding, however, and one of these was isolated and characterized. No differences were seen in its Ywp1, but it exhibited greater adhesiveness, sensitivity to wall perturbing agents, and exposure of its underlying beta-1,3-glucan layer to external antibodies. The molecular basis for this greater epitope accessibility has not been determined, but has facilitated exploration of how these properties change as a function of cell growth and morphology. In addition, previously engineered strains with reduced quantities of Ywp1 in their cell walls were also found to have greater beta-1,3-glucan exposure, indicating that Ywp1 itself contributes to the masking of wall epitopes, which may be important for understanding the anti-adhesive effect of Ywp1. Ectopic production of Ywp1 by hyphae, which reduces the adhesivity of these filamentous forms of C. albicans, was similarly found to reduce exposure of the beta-1,3-glucan in their walls. To monitor Ywp1 in the cell wall irrespective of its accessibility, green fluorescent protein (Gfp) was genetically inserted into wall-anchored Ywp1 using a bifunctional cassette that also allowed production from a single transfection of a soluble, anchor-free version. The wall-anchored Ywp1-Gfp-Ywp1 accumulated in the wall of the yeast forms but not hyphae, and appeared to have properties similar to native Ywp1, including its adhesion-inhibiting effect. Some pseudohyphal walls also detectably accumulated this probe. Strains of C. albicans with tandem hemagglutinin (HA) epitopes inserted into wall-anchored Ywp1 were previously created by others, and were further explored here. As above, rare cells with much greater accessibility of the HA epitopes were isolated, and also found to exhibit greater exposure of Ywp1 and beta-1,3-glucan. The placement of the HA cassette inhibited the normal N glycosylation and propeptide cleavage of Ywp1, but the wall-anchored Ywp1-HA-Ywp1 still accumulated in the cell wall of yeast forms. Bifunctional transformation cassettes were used to additionally tag these molecules with Gfp, generating soluble Ywp1-HA-Gfp and wall-anchored Ywp1-HA-Gfp-Ywp1 molecules. The former revealed unexpected electrophoretic properties caused by the HA insertion, while the latter further highlighted differences between the presence of a tagged Ywp1 molecule (as revealed by Gfp fluorescence) and its accessibility in the cell wall to externally applied antibodies specific for HA, Gfp and Ywp1, with accessibility being greatest in the rapidly expanding walls of budding daughter cells. These strains and results increase our understanding of cell wall properties and how C. albicans masks itself from recognition by the human immune system. PMID- 29329342 TI - Ternary copper(II) complex: NCI60 screening, toxicity studies, and evaluation of efficacy in xenograft models of nasopharyngeal carcinoma. AB - Copper(II) ternary complex, [Cu(phen)(C-dmg)(H2O)]NO3 was evaluated against a panel of cell lines, tested for in vivo efficacy in nasopharyngeal carcinoma xenograft models as well as for toxicity in NOD scid gamma mice. The Cu(II) complex displayed broad spectrum cytotoxicity against multiple cancer types, including lung, colon, central nervous system, melanoma, ovarian, and prostate cancer cell lines in the NCI-60 panel. The Cu(II) complex did not cause significant induction of cytochrome P450 (CYP) 3A and 1A enzymes but moderately inhibited CYP isoforms 1A2, 2C9, 2C19, 2D6, 2B6, 2C8 and 3A4. The complex significantly inhibited tumor growth in nasopharyngeal carcinoma xenograft bearing mice models at doses which were well tolerated without causing significant or permanent toxic side effects. However, higher doses which resulted in better inhibition of tumor growth also resulted in toxicity. PMID- 29329343 TI - Effect of freeze-thaw cycling on grain size of biochar. AB - Biochar may improve soil hydrology by altering soil porosity, density, hydraulic conductivity, and water-holding capacity. These properties are associated with the grain size distributions of both soil and biochar, and therefore may change as biochar weathers. Here we report how freeze-thaw (F-T) cycling impacts the grain size of pine, mesquite, miscanthus, and sewage waste biochars under two drainage conditions: undrained (all biochars) and a gravity-drained experiment (mesquite biochar only). In the undrained experiment plant biochars showed a decrease in median grain size and a change in grain-size distribution consistent with the flaking off of thin layers from the biochar surface. Biochar grain size distribution changed from unimodal to bimodal, with lower peaks and wider distributions. For plant biochars the median grain size decreased by up to 45.8% and the grain aspect ratio increased by up to 22.4% after 20 F-T cycles. F-T cycling did not change the grain size or aspect ratio of sewage waste biochar. We also observed changes in the skeletal density of biochars (maximum increase of 1.3%), envelope density (maximum decrease of 12.2%), and intraporosity (porosity inside particles, maximum increase of 3.2%). In the drained experiment, mesquite biochar exhibited a decrease of median grain size (up to 4.2%) and no change of aspect ratio after 10 F-T cycles. We also document a positive relationship between grain size decrease and initial water content, suggesting that, biochar properties that increase water content, like high intraporosity and pore connectivity large intrapores, and hydrophilicity, combined with undrained conditions and frequent F-T cycles may increase biochar breakdown. The observed changes in biochar particle size and shape can be expected to alter hydrologic properties, and thus may impact both plant growth and the hydrologic cycle. PMID- 29329344 TI - Maintenance of muscle strength retains a normal metabolic cost in simulated walking after transtibial limb loss. AB - Recent studies on relatively young and fit individuals with limb loss suggest that maintaining muscle strength after limb loss may mitigate the high metabolic cost of walking typically seen in the larger general limb loss population. However, these data are cross-sectional and the muscle strength prior to limb loss is unknown, and it is therefore difficult to draw causal inferences on changes in strength and gait energetics. Here we used musculoskeletal modeling and optimal control simulations to perform a longitudinal study (25 virtual "subjects") of the metabolic cost of walking pre- and post-limb loss (unilateral transtibial). Simulations of walking were first performed pre-limb loss on a model with two intact biological legs, then post-limb loss on a model with a unilateral transtibial prosthesis, with a cost function that minimized the weighted sum of gait deviations plus metabolic cost. Metabolic costs were compared pre- vs. post-limb loss, with systematic modifications to the muscle strength and prosthesis type (passive, powered) in the post-limb loss model. The metabolic cost prior to limb loss was 3.44+/-0.13 J/m/kg. After limb loss, with a passive prosthesis the metabolic cost did not increase above the pre-limb loss cost if pre-limb loss muscle strength was maintained (mean -0.6%, p = 0.17, d = 0.17). With 10% strength loss the metabolic cost with the passive prosthesis increased (mean +5.9%, p < 0.001, d = 1.61). With a powered prosthesis, the metabolic cost was at or below the pre-limb loss cost for all subjects with strength losses of 10% and 20%, but increased for all subjects with strength loss of 30% (mean +5.9%, p < 0.001, d = 1.59). The results suggest that maintaining muscle strength may prevent an increase in the metabolic cost of walking following unilateral transtibial limb loss, and that a gait with minimal deviations can be achieved when muscle strength is sufficiently high, even when using a passive prosthesis. PMID- 29329345 TI - Survival benefit associated with metformin use in inoperable non-small cell lung cancer patients with diabetes: A population-based retrospective cohort study. AB - OBJECTIVE: To evaluate the effects of metformin use on the survival of inoperable non-small cell lung cancer (NSCLC) patients with diabetes using the Taiwanese National Health Insurance Research Database. RESEARCH DESIGN AND METHODS: In total, 7,620 patients were eligible in this study, among them, 3,578 patients were metformin users and 4,042 were non-users. Propensity score matching was used to reduce possible confounding factors. In total, 4,182 patients (2,091 matched pairs) were included in the matched cohort. Cox proportional hazard model with time-dependent covariate were also applied to evaluate the association between metformin use and overall survival (OS). RESULTS: A total of 3,578 patients were metformin users at the time of diagnosis of NSCLC. Cox proportional hazard model with time-dependent covariate revealed that metformin use was associated with a significantly longer OS (HR: 0.85, 95.0% CI: 0.80-0.90). The survival benefit of metformin use was maintained after propensity score matching at a ratio of 1:1 (HR: 0.90, 95.0% CI: 0.84-0.97). CONCLUSIONS: Metformin use is associated with longer OS in inoperable NSCLC patients with diabetes, suggesting a potential anti tumorigenic effect for metformin. Further research is needed to investigate the actual role of metformin in the treatment of NSCLC patients with diabetes. PMID- 29329346 TI - Evaluation of bloodstream infections, Clostridium difficile infections, and gut microbiota in pediatric oncology patients. AB - Bloodstream infections (BSI) and Clostridium difficile infections (CDI) in pediatric oncology/hematology/bone marrow transplant (BMT) populations are associated with significant morbidity and mortality. The objective of this study was to explore possible associations between altered microbiome composition and the occurrence of BSI and CDI in a cohort of pediatric oncology patients. Stool samples were collected from all patients admitted to the pediatric oncology floor from Oct.-Dec. 2012. Bacterial profiles from patient stools were determined by bacterial 16S rRNA gene profiling. Differences in overall microbiome composition were assessed by a permutation-based multivariate analysis of variance test, while differences in the relative abundances of specific taxa were assessed by Kruskal-Wallis tests. At admission, 9 of 42 patients (21%) were colonized with C. difficile, while 6 of 42 (14%) subsequently developed a CDI. Furthermore, 3 patients (7%) previously had a BSI and 6 patients (14%) subsequently developed a BSI. Differences in overall microbiome composition were significantly associated with disease type (p = 0.0086), chemotherapy treatment (p = 0.018), BSI following admission from any cause (p < 0.0001) or suspected gastrointestinal organisms (p = 0.00043). No differences in baseline microbiota were observed between individuals who did or did not subsequently develop C. difficile infection. Additionally, multiple bacterial groups varied significantly between subjects with post-admission BSI compared with no BSI. Our results suggest that differences in gut microbiota not only are associated with type of cancer and chemotherapy, but may also be predictive of subsequent bloodstream infection. PMID- 29329348 TI - Correction: Risk of thromboembolism in cisplatin versus carboplatin-treated patients with lung cancer. AB - [This corrects the article DOI: 10.1371/journal.pone.0189410.]. PMID- 29329347 TI - Salivary proteomics of healthy dogs: An in depth catalog. AB - OBJECTIVE: To provide an in-depth catalog of the salivary proteome and endogenous peptidome of healthy dogs, evaluate proteins and peptides with antimicrobial properties, and compare the most common salivary proteins and peptides between different breed phylogeny groups. METHODS: 36 healthy dogs without evidence of periodontal disease representing four breed phylogeny groups, based upon single nucleotide polymorphism haplotypes (ancient, herding/sighthound, and two miscellaneous groups). Saliva collected from dogs was pooled by phylogeny group and analyzed using nanoscale liquid chromatography-tandem mass spectrometry. Resulting tandem mass spectra were compared to databases for identification of endogenous peptides and inferred proteins. RESULTS: 2,491 proteins and endogenous peptides were found in the saliva of healthy dogs with no periodontal disease. All dog phylogeny groups' saliva was rich in proteins and peptides with antimicrobial functions. The ancient breeds group was distinct in that it contained unique proteins and was missing many proteins and peptides present in the other groups. CONCLUSIONS AND CLINICAL RELEVANCE: Using a sophisticated nanoscale liquid chromatography-tandem mass spectrometry, we were able to identify 10-fold more salivary proteins than previously reported in dogs. Seven of the top 10 most abundant proteins or peptides serve immune functions and many more with various antimicrobial mechanisms were found. This is the most comprehensive analysis of healthy canine saliva to date, and will provide the groundwork for future studies analyzing salivary proteins and endogenous peptides in disease states. PMID- 29329349 TI - Natural wind variability triggered drop in German redispatch volume and costs from 2015 to 2016. AB - Avoiding dangerous climate change necessitates the decarbonization of electricity systems within the next few decades. In Germany, this decarbonization is based on an increased exploitation of variable renewable electricity sources such as wind and solar power. While system security has remained constantly high, the integration of renewables causes additional costs. In 2015, the costs of grid management saw an all time high of about ? 1 billion. Despite the addition of renewable capacity, these costs dropped substantially in 2016. We thus investigate the effect of natural climate variability on grid management costs in this study. We show that the decline is triggered by natural wind variability focusing on redispatch as a main cost driver. In particular, we find that 2016 was a weak year in terms of wind generation averages and the occurrence of westerly circulation weather types. Moreover, we show that a simple model based on the wind generation time series is skillful in detecting redispatch events on timescales of weeks and beyond. As a consequence, alterations in annual redispatch costs in the order of hundreds of millions of euros need to be understood and communicated as a normal feature of the current system due to natural wind variability. PMID- 29329350 TI - Incidence and risk factors for postoperative lingual neuropraxia following airway instrumentation: A retrospective matched case-control study. AB - BACKGROUND: Lingual nerve injury or neuropraxia is a rare but potentially serious perioperative complication following airway instrumentation during general anesthesia. This study explored the the incidence and perioperative risk factors for lingual nerve injury in patients receiving laryngeal mask (LMA) or endotracheal (ETGA) general anesthesia in a single center experience. METHODS AND RESULTS: All surgical patients in our hospital who received LMA or ETGA from 2009 to 2013 were included, and potential perioperative risk factors were compared. Matched controls were randomly selected (in 1:5 ratio) from the same database in non-case patients. A total of 36 patients in the records had reported experiencing tongue numbness after anesthesia in this study. Compared with the non-case surgical population (n = 54314), patients with tongue numbness were significantly younger (52.2+/-19.5 vs 42.0+/-14.5; P = 0.002) and reported lower ASA physical statuses (2.3+/-0.7 vs 1.6+/-0.6; P<0.001). Patient gender, anesthesia technique used, and airway device type (LMA or ETGA) did not differ significantly across the two groups. A significantly higher proportion of patients underwent operations of the head-and-neck region (38.9 vs 15.6%; P = 0.002) developed tongue numbness after anesthesia. Multivariate logistic regression analysis indicated that head-and-neck operations remained the most significant independent risk factor for postoperative lingual nerve injury (AOR 7.63; 95% CI 2.03-28.70). CONCLUSION: The overall incidence rate of postoperative lingual neuropraxy was 0.066% in patients receiving general anesthesia with airway device in place. Young and generally healthy patients receiving head-and neck operation are at higher risk in developing postoperative lingual neuropraxy. Attention should be particularly exercised to reduce the pressure of endotracheal tube or laryngeal mask on the tongue during head-and-neck operation to avert the occurrence of postoperative lingual neuropraxy. PMID- 29329351 TI - Educational gradients in the use of electronic cigarettes and heat-not-burn tobacco products in Japan. AB - OBJECTIVES: In addition to electronic cigarettes (e-cigarettes), tobacco companies have recently begun to sell heat-not-burn tobacco products, Ploom and iQOS in Japan. Previous research has reported an inverse association between combustible cigarette smoking and educational attainment, but little is known about the association for e-cigarettes, especially heat-not-burn tobacco products. Our objective was to analyze the relationship between educational attainment and e-cigarette and heat-not-burn tobacco use. SETTING: An internet survey (randomly sampled research agency panelists) in Japan. PARTICIPANTS: A total of 7338 respondents aged 18-69 years in 2015 (3632 men and 3706women). PRIMARY MEASURES: Adjusted odds ratios (ORs) of educational attainment for current smoking (combustible cigarettes), e-cigarette ever-use, and heat-not-burn ever-use were calculated by multivariable logistic regression models using covariates including socio-demographic factors. Stratified analyses according to smoking status (combustible cigarettes) were additionally performed for e cigarette ever-use and heat-not-burn tobacco product ever-use. RESULTS: Associations between educational attainment and e-cigarette ever-use or heat-not burn tobacco ever-use are not straightforward, although these associations are not statistically significant except for one cell. For example, using "graduate school" education as a reference category, adjusted ORs for "high school" were 1.44 (95% confidence interval [CI]: 0.85-2.44) for e-cigarettes ever-use and 0.75 (95% CI:0.19-2.97) for heat-not-burn tobacco product ever-use. Among current smokers, compared with "graduate school" (reference), those with lower educational attainment showed 0.6 to 0.7 ORs for e-cigarette ever-use: e.g.,"4 year university"(OR = 0.54, 95% CI:0.24-1.24) and "high school" (OR = 0.69, 95% CI: 0.30-1.60). Among former smokers, lower education indicated higher ORs for both e-cigarettes and heat-not-burn tobacco ever-use. CONCLUSIONS: This study provides baseline information on educational gradients of e-cigarette and heat not-burn tobacco products, ever-use. As heat-not-burn tobacco products are increasing their market share in Japan, continuous monitoring of these products will be necessary. PMID- 29329353 TI - Estimating the responses of winter wheat yields to moisture variations in the past 35 years in Jiangsu Province of China. AB - Jiangsu is an important agricultural province in China. Winter wheat, as the second major grain crop in the province, is greatly affected by moisture variations. The objective of this study was to investigate whether there were significant trends in changes in the moisture conditions during wheat growing seasons over the past decades and how the wheat yields responded to different moisture levels by means of a popular drought index, the Standardized Precipitation Evapotranspiration Index (SPEI). The study started with a trend analysis and quantification of the moisture conditions with the Mann-Kendall test and Sen's Slope method, respectively. Then, correlation analysis was carried out to determine the relationship between de-trended wheat yields and multi-scalar SPEI. Finally, a multivariate panel regression model was established to reveal the quantitative yield responses to moisture variations. The results showed that the moisture conditions in Jiangsu were generally at a normal level, but this century appeared slightly drier in because of the relatively high temperatures. There was a significant correlation between short time scale SPEI values and wheat yields. Among the three critical stages of wheat development, the SPEI values in the late growth stage (April-June) had a closer linkage to the yields than in the seedling stage (October-November) and the over-wintering stage (December-February). Moreover, the yield responses displayed an asymmetric characteristic, namely, moisture excess led to higher yield losses compared to moisture deficit in this region. The maximum yield increment could be obtained under the moisture level of slight drought according to the 3-month SPEI at the late growth stage, while extreme wetting resulted in the most severe yield losses. The moisture conditions in the first 15 years of the 21st century were more favorable than in the last 20 years of the 20th century for wheat production in Jiangsu. PMID- 29329352 TI - Interpersonal trauma moderates the relationship between personality factors and suicidality of individuals with posttraumatic stress disorder. AB - Individuals with posttraumatic stress disorder (PTSD) are more prone to suicidal ideation and behavior. While those who have experienced interpersonal trauma exhibit more suicidality than those who have experienced non-interpersonal trauma, it is unclear how the traumatic effects are related to an individual's personality characteristics. This study examined the association between interpersonal trauma and personality factors with suicidality, and elucidated the moderating role of interpersonal trauma in individuals with PTSD. The study included 6,022 participants from the Korean Epidemiologic Catchment Area Study 2011. The Korean Version of Composite International Diagnostic Interview was used for the survey, including the participants' history of suicidality, the traumas they have experienced, and their PTSD symptoms. The 11-item version of the Big Five Inventory (BFI-11) was used to assess the participants' personality factors. 76 individuals were diagnosed with PTSD, while 810 had been exposed to trauma but were not diagnosed with any DSM-IV mental disorder. Among the individuals with PTSD, those who had experienced interpersonal trauma were more likely to have suicidal ideation than those who had experienced non-interpersonal trauma (p = .020; odds ratio [OR] = 3.643; 95% confidence interval of OR = [1.226, 10.825]). High agreeableness and conscientiousness predicted less suicidality in those exposed to non-interpersonal trauma, while predicting more suicidality in those exposed to interpersonal trauma. Clinicians examining individuals with PTSD should pay closer attention to the trauma that they have experienced, as well as their personality factors, to provide appropriate treatment. PMID- 29329354 TI - Palmitate-induced ER stress and inhibition of protein synthesis in cultured myotubes does not require Toll-like receptor 4. AB - Saturated fatty acids, such as palmitate, are elevated in metabolically dysfunctional conditions like type 2 diabetes mellitus. Palmitate has been shown to impair insulin sensitivity and suppress protein synthesis while upregulating proteolytic systems in skeletal muscle. Increased sarco/endoplasmic reticulum (ER) stress and subsequent activation of the unfolded protein response may contribute to the palmitate-induced impairment of muscle protein synthesis. In some cell types, ER stress occurs through activation of the Toll-like receptor 4 (TLR4). Given the link between ER stress and suppression of protein synthesis, we investigated whether palmitate induces markers of ER stress and protein synthesis by activating TLR4 in cultured mouse C2C12 myotubes. Myotubes were treated with vehicle, a TLR4-specific ligand (lipopolysaccharides), palmitate, or a combination of palmitate plus a TLR4-specific inhibitor (TAK-242). Inflammatory indicators of TLR4 activation (IL-6 and TNFalpha) and markers of ER stress were measured, and protein synthesis was assessed using puromycin incorporation. Palmitate substantially increased the levels of IL-6, TNF-alpha, CHOP, XBP1s, and ATF 4 mRNAs and augmented the levels of CHOP, XBP1s, phospho-PERK and phospho eIF2alpha proteins. The TLR4 antagonist attenuated both acute palmitate and LPS induced increases in IL-6 and TNFalpha, but did not reduce ER stress signaling with either 6 h or 24 h palmitate treatment. Similarly, treating myotubes with palmitate for 6 h caused a 43% decline in protein synthesis consistent with an increase in phospho-eIF2alpha, and the TLR4 antagonist did not alter these responses. These results suggest that palmitate does not induce ER stress through TLR4 in muscle, and that palmitate impairs protein synthesis in skeletal muscle in part by induction of ER stress. PMID- 29329357 TI - Mineralocorticoid Receptor Antagonists Treatment in Resistant Hypertension and HFpEF: Evidence and Courage. PMID- 29329356 TI - Prognostic factors of noninvasive mechanical ventilation in lung cancer patients with acute respiratory failure. AB - INTRODUCTION: Few studies have reported outcomes of lung cancer patients with acute respiratory failure (RF) using noninvasive positive pressure ventilation (NIPPV). The aim of this study was to investigate the prognostic factors in these patients. MATERIALS AND METHODS: This retrospective observational study included all hospitalized lung cancer patients who received NIPPV for acute RF. It was conducted at a tertiary medical center in Taiwan from 2005 to 2010. The primary outcome was all cause mortality at 28 days after the initiation of NIPPV. Secondary outcomes included all-cause in-hospital mortality, weaning from NIPPV, intubation rate, tracheostomy rate, duration of NIPPV, hospital stay and intensive care unit stay. RESULTS: The all-cause mortality rate at day 28 of the enrolled 58 patients was 39.66%. The 90-day and 1-year mortality rates were 63.79% and 86.21%, respectively. NIPPV as the first line therapy for RF had higher 28-day mortality rate than it used for post-extubation RF (57.6% versus 16.0%, p<0.05). Independent predictors of mortality at 28 days were progressive disease or newly diagnosed lung cancer (OR 14.02 95% CI 1.03-191.59, p = 0.048), combined with other organ failure (OR 18.07 95% CI 1.87-172.7, p = 0.012), and NIPPV as the first line therapy for RF (OR 35.37 95% CI 3.30-378.68, p = 0.003). CONCLUSION: Lung cancer patients using NIPPV with progressive or newly diagnosed cancer disease, combined with other organ failure, or NIPPV as the first line therapy for respiratory failure have a poor outcome. PMID- 29329355 TI - When the brain changes its mind: Oscillatory dynamics of conflict processing and response switching in a flanker task during alcohol challenge. AB - Despite the subjective experience of being in full and deliberate control of our actions, our daily routines rely on a continuous and interactive engagement of sensory evaluation and response preparation streams. They unfold automatically and unconsciously and are seamlessly integrated with cognitive control which is mobilized by stimuli that evoke ambiguity or response conflict. Methods with high spatio-temporal sensitivity are needed to provide insight into the interplay between automatic and controlled processing. This study used anatomically constrained MEG to examine the underlying neural dynamics in a flanker task that manipulated S-R incongruity at the stimulus (SI) and response levels (RI). Though irrelevant, flankers evoked automatic preparation of motor plans which had to be suppressed and reversed following the target presentation on RI trials. Event related source power estimates in beta (15-25 Hz) frequency band in the sensorimotor cortex tracked motor preparation and response in real time and revealed switching from the incorrectly-primed to the correctly-responding hemisphere. In contrast, theta oscillations (4-7 Hz) were sensitive to the levels of incongruity as the medial and ventrolateral frontal cortices were especially activated by response conflict. These two areas are key to cognitive control and their integrated contributions to response inhibition and switching were revealed by phase-locked co-oscillations. These processes were pharmacologically manipulated with a moderate alcohol beverage or a placebo administered to healthy social drinkers. Alcohol selectively decreased accuracy to response conflict. It strongly attenuated theta oscillations during decision making and partly re sculpted relative contributions of the frontal network without affecting the motor switching process subserved by beta band. Our results indicate that motor preparation is initiated automatically even when counterproductive but that it is monitored and regulated by the prefrontal cognitive control processes under conflict. They further confirm that the regulative top-down functions are particularly vulnerable to alcohol intoxication. PMID- 29329358 TI - Modulating Role of Ang1-7 in Control of Blood Pressure and Renal Function in AngII-infused Hypertensive Rats. AB - BACKGROUND: Indirect evidence suggests that angiotensin 1-7 (Ang1-7) may counterbalance prohypertensive actions of angiotensin II (AngII), via activation of vascular and/or renal tubular receptors to cause vasodilation and natriuresis/diuresis. We examined if Ang1-7 would attenuate the development of hypertension, renal vasoconstriction, and decreased natriuresis in AngII-infused rats and evaluated the mechanisms involved. METHODS: AngII, alone or with Ang1-7, was infused to conscious Sprague-Dawley rats for 13 days and systolic blood pressure (SBP) and renal excretion were repeatedly determined. In anesthetized rats, acute actions of Ang1-7 and effects of blockade of angiotensin AT1 or Mas receptors (candesartan or A-779) were studied. RESULTS: Chronic AngII infusion increased SBP from 143 +/- 4 to 195 +/- 6 mm Hg. With Ang1-7 co-infused, SBP increased from 133 +/- 5 to 161 +/- 5 mm Hg (increase reduced, P < 0.002); concurrent increases in urine flow (V) and sodium excretion (UNaV) were greater. In anesthetized normotensive or AngII-induced hypertensive rats, Ang1-7 infusion transiently increased mean arterial pressure (MABP), transiently decreased renal blood flow (RBF), and caused increases in UNaV and V. In normotensive rats, candesartan prevented the Ang1-7-induced increases in MABP and UNaV and the decrease in RBF. In anesthetized normotensive, rats intravenous A-779 increased MABP (114 +/- 5 to 120 +/- 5 mm Hg, P < 0.03) and urine flow. Surprisingly, these changes were not observed with A-779 applied during background Ang1-7 infusion. CONCLUSIONS: The results suggest that in AngII-dependent hypertension, Ang1-7 deficit contributes to sodium and fluid retention and thereby to BP elevation; a correction by Ang1-7 infusion seems mediated by AT1 and not Mas receptors. PMID- 29329360 TI - Tumor suppressor miR-128-3p inhibits metastasis and epithelial-mesenchymal transition by targeting ZEB1 in esophageal squamous-cell cancer. AB - MicroRNAs (miRNAs) are some short RNAs that regulate multiple biological functions at post-transcriptional levels, such as tumorigenic processes, inflammatory lesions and cell apoptosis. Zinc finger E-box binding homeobox factor 1 (ZEB1) is a crucial mediator of epithelial-mesenchymal transition (EMT). It induces malignant progression of various cancers including human esophageal squamous-cell carcinoma (ESCC). In this study, we found that miR-128-3p was downregulated in ESCC tissues and cells by using PCR. Moreover, down-regulated expression of miR-128-3p was testified to be associated with poor prognosis of ESCC patients and might be regarded as an independent prognostic factor. Then, we examined the role of miR-128-3p in ESCC cells, and found that miR-128-3p could suppress the cell migration and invasion in vitro. Furthermore, ZEB1 was confirmed to be a direct target of miR-128-3p by luciferase reporter assay. Rescue experiments proved that EMT was regulated by miR-128-3p via suppression of ZEB1. Taken all together, we conclude that miR-128-3p suppresses EMT and metastasis via ZEB1, and miR-128-3p may be a critical mediator in ESCC. PMID- 29329359 TI - Effectiveness of Mass Media Campaigns to Reduce Alcohol Consumption and Harm: A Systematic Review. AB - Aims: To assess the effectiveness of mass media messages to reduce alcohol consumption and related harms using a systematic literature review. Methods: Eight databases were searched along with reference lists of eligible studies. Studies of any design in any country were included, provided that they evaluated a mass media intervention targeting alcohol consumption or related behavioural, social cognitive or clinical outcomes. Drink driving interventions and college campus campaigns were ineligible. Studies quality were assessed, data were extracted and a narrative synthesis conducted. Results: Searches produced 10,212 results and 24 studies were included in the review. Most campaigns used TV or radio in combination with other media channels were conducted in developed countries and were of weak quality. There was little evidence of reductions in alcohol consumption associated with exposure to campaigns based on 13 studies which measured consumption, although most did not state this as a specific aim of the campaign. There were some increases in treatment seeking and information seeking and mixed evidence of changes in intentions, motivation, beliefs and attitudes about alcohol. Campaigns were associated with increases in knowledge about alcohol consumption, especially where levels had initially been low. Recall of campaigns was high. Conclusion: Mass media health campaigns about alcohol are often recalled by individuals, have achieved changes in knowledge, attitudes and beliefs about alcohol but there is little evidence of reductions in alcohol consumption. Short summary: There is little evidence that mass media campaigns have reduced alcohol consumption although most did not state that they aimed to do so. Studies show recall of campaigns is high and that they can have an impact on knowledge, attitudes and beliefs about alcohol consumption. PMID- 29329361 TI - pyHVis3D: visualising molecular simulation deduced H-bond networks in 3D: application to T-cell receptor interactions. AB - Motivation: Hydrogen bonds (H-bonds) play an essential role for many molecular interactions but are also often transient, making visualising them in a flexible system challenging. Results: We provide pyHVis3D which allows for an easy to interpret 3D visualisation of H-bonds resulting from molecular simulations. We demonstrate the power of pyHVis3D by using it to explain the changes in experimentally measured binding affinities for three T-cell receptor/peptide/MHC complexes and mutants of each of these complexes. Availability and implementation: pyHVis3D can be downloaded for free from http://opig.stats.ox.ac.uk/resources. Contact: science.bernhard.knapp@gmail.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29329362 TI - Clostridium butyricum regulates visceral hypersensitivity of irritable bowel syndrome by inhibiting colonic mucous low grade inflammation through its action on NLRP6. AB - Visceral hypersensitivity induced by stress is quite common in irritable bowel syndrome (IBS) patients. Probiotics play an important role in reducing visceral hypersensitivity in IBS patients. However, the mechanism has not been clearly elucidated. In this study, we investigated the role of nod-like receptor pyrin domain-containing protein 6 (NLRP6) in Clostridium butyricum-regulated IBS induced by stress. Our results showed that NLRP6 was down-regulated in IBS group colon tissues. In addition, IL-18, IL-1beta, myeloperoxidase (MPO), d-lactic acid (D-LA), and CD172a were up-regulated in the IBS group of colonic mucous. IL-18 and IL-1beta were also increased after the NLRP6 gene was silenced. Pathological score suggested low inflammation of colonic mucous rather than terminal ileum. Water-avoidance stress (WAS) showed visceral hypersensitivity to colonic distension. However, treatment with Clostridium butyricum reversed these results, exerting a beneficial effect. In conclusion, Clostridium butyricum may exert a beneficial action on visceral hypersensitivity of IBS by inhibiting low grade inflammation of colonic mucous through its action on NLRP6. PMID- 29329363 TI - Validity of Teleneuropsychological Assessment in Older Patients with Cognitive Disorders. AB - Objective: The feasibility and reliability of neuropsychological assessment at a distance have been demonstrated, but the validity of this testing medium has not been adequately demonstrated. The purpose of this study was to determine the ability of video teleconferencing administration of neuropsychological measures (teleneuropsychology) in discriminating cognitively impaired from non-impaired groups of older adults. It was predicted that measures administered via video teleconference would distinguish groups and that the magnitude of differences between impaired and non-impaired groups would be similar to group differences achieved in traditional administration. Methods: The sample consisted of 197 older subjects, separated into two groups, with and without cognitive impairment. The cognitive impairment group included 78 individuals with clinical diagnoses of mild cognitive impairment or Alzheimer's disease. All participants completed counterbalanced neuropsychological testing using alternate test forms in both a teleneuropsychology and a traditional face-to-face (FTF) administration condition. Tests were selected based upon their common use in dementia evaluations, brevity, and assessment of multiple cognitive domains. Results from FTF and teleneuropsychology test conditions were compared using individual repeated measures ANCOVA, controlling for age, education, gender, and depression scores. Results: All ANCOVA models revealed significant main effects of group and a non-significant interaction between group and administration condition. All ANCOVA models revealed non-significant main effects for administration condition, except category fluency. Conclusions: Results derived from teleneuropsychologically administered tests can distinguish between cognitively impaired and non-impaired individuals similar to traditional FTF assessment. This adds to the growing teleneuropsychology literature by supporting the validity of remote assessments in aging populations. PMID- 29329365 TI - A Formative Evaluation of Two FASD Prevention Communication Strategies. AB - Aims: To evaluate the feasibility, acceptability and effectiveness of placing FASD prevention messages in the women's restrooms of establishments serving alcohol in Alaska and the Yukon, regions with high rates of FASD. Methods: Our team placed an FASD educational poster, and posters affixed to a pregnancy test dispenser, in women's restrooms of bars and restaurants. We compared drinking behaviors and knowledge and beliefs about FASD among participants at baseline and at follow-up. Results: Respondents consisted of 2132 women who completed a baseline survey and 1182 women who completed both a baseline and a follow-up survey. Women in both groups showed improvement in knowledge of FASD; the dispenser group scored higher than participants in the poster group on the FASD Health Belief questions at both baseline and follow-up. Forty-three women learned they were pregnant from our pregnancy tests and alcohol consumption among pregnant women was lower at follow-up than at baseline. Conclusions: FASD prevention messages, particularly paired with pregnancy test dispensers, in the women's restrooms of establishments that serve alcohol can effectively promote informed alcohol consumption decisions among women who are, or may become, pregnant. Short Summary: In this FASD prevention feasibility study, we found that FASD prevention messages, particularly paired with pregnancy test dispensers, placed in the women's restrooms of establishments that serve alcohol can effectively promote informed alcohol consumption decisions among women who are, or may become, pregnant. PMID- 29329366 TI - Delineating differential regulatory signatures of the human transcriptome in the choriodecidua and myometrium at term labor. AB - Preterm deliveries remain the leading cause of neonatal morbidity and mortality. Current therapies target only myometrial contractions and are largely ineffective. As labor involves multiple coordinated events across maternal and fetal tissues, identifying fundamental regulatory pathways of normal term labor is vital to understanding successful parturition and consequently labor pathologies. We aimed to identify transcriptomic signatures of human normal term labor of two tissues: in the fetal-facing choriodecidua and the maternal myometrium. Microarray transcriptomic data from choriodecidua and myometrium following term labor were analyzed for functional hierarchical networks, using Cytoscape 2.8.3. Hierarchically high candidates were analyzed for their regulatory casual relationships using Ingenuity Pathway Analysis. Selected master regulators were then chemically inhibited and effects on downstream targets were assessed using real-time quantitative PCR (RT-qPCR). Unbiased network analysis identified upstream molecular components in choriodecidua including vimentin, TLR4, and TNFSF13B. In the myometrium, candidates included metallothionein 2 (MT2A), TLR2, and RELB. These master regulators had significant differential gene expression during labor, hierarchically high centrality in community cluster networks, interactions amongst the labor gene set, and strong causal relationships with multiple downstream effects. In vitro experiments highlighted MT2A as an effective regulator of labor-associated genes. We have identified unique potential regulators of the term labor transcriptome in uterine tissues using a robust sequence of unbiased mathematical and literature-based in silico analyses. These findings encourage further investigation into the efficacy of predicted master regulators in blocking multiple pathways of labor processes across maternal and fetal tissues, and their potential as therapeutic approaches. PMID- 29329364 TI - Downregulation of Drp1, a fission regulator, is associated with human lung and colon cancers. AB - Dynamin-related protein 1 (Drp1), a dynamin-related GTPase, is a key regulator of mitochondrial fission. Although recent studies have shown that Drp1 plays important roles in various important cellular processes, such as maintaining proper mitochondrial function, apoptosis and necrosis, the potential involvement of Drp1 in cancer development has not been fully addressed. To explore the role of Drp1 in cancer, we examined Drp1 levels in various human cancer tissues. Tissue array analysis showed that the level of Drp1 was decreased significantly in malignant colon and lung cancer tissues, whereas no change in Drp1 was observed in breast and prostate tumors. Pairwise comparisons of cancer tissue and adjacent normal tissue from colon and lung cancer patients further confirmed decreases in Drp1 expression of 75% in colon cancer patients and 78% in lung cancer patients. Moreover, Drp1 levels were decreased further with advanced grade in both colon and lung cancers, suggesting that loss of Drp1 is associated with the progression of human lung and colon cancer. Consistent with this observation, knockdown of Drp1 increased cellular migration activity in human lung cancer cells and tumor formation in a xenograft tumor model. Taken together, these results suggest that the loss of Drp1 expression could contribute to the development of human lung and colon cancers. PMID- 29329367 TI - Effects of Anodal Transcranial Direct Current Stimulation Over the Ventrolateral Prefrontal Cortex on Episodic Memory Formation and Retrieval. AB - In the past decade, several studies have investigated the effects of transcranial direct current stimulation (tDCS) on episodic memory abilities. However, the specific conditions under which tDCS affects memory remain largely unclear. Here, we report data from 4 experiments aimed at investigating the effects of anodal tDCS over the left ventrolateral prefrontal cortex (VLPFC) on verbal episodic memory. We evaluated tDCS-induced effects as a function of time of administration, nature of the memory encoding task, and age of the participants. A robust enhancement of memory performance was only found when anodal tDCS was delivered during intentional memorization. This enhancement was evident in young and older adults. tDCS applied during incidental memorization or during retrieval did not induce any modulation of memory performance, and memory was unaffected by offline administration before encoding or retrieval. These results show that the modulation of episodic memory functions by anodal tDCS over the left VLPFC is dependent upon the time of administration and the nature of the memory task. The findings may help profile the optimal stimulation protocols for neurorehabilitation interventions on individuals with memory decline. PMID- 29329368 TI - Discovering personalized driver mutation profiles of single samples in cancer by network control strategy. AB - Motivation: It is a challenging task to discover personalized driver genes that provide crucial information on disease risk and drug sensitivity for individual patients. However, few methods have been proposed to identify the personalized sample driver genes from the cancer omics data due to the lack of samples for each individual. To circumvent this problem, here we present a novel single sample controller strategy (SCS) to identify personalized driver mutation profiles from network controllability perspective. Results: SCS integrates mutation data and expression data into a reference molecular network for each patient to obtain the driver mutation profiles in a personalized-sample manner. This is the first such a computational framework, to bridge the personalized driver mutation discovery problem and the structural network controllability problem. The key idea of SCS is to detect those mutated genes which can achieve the transition from the normal state to the disease state based on each individual omics data from network controllability perspective. We widely validate the driver mutation profiles of our SCS from three aspects: (i) the improved precision for the predicted driver genes in the population compared with other driver-focus methods; (ii) the effectiveness for discovering the personalized driver genes and (iii) the application to the risk assessment through the integration of the driver mutation signature and expression data, respectively, across the five distinct benchmarks from The Cancer Genome Atlas. In conclusion, our SCS makes efficient and robust personalized driver mutation profiles predictions, opening new avenues in personalized medicine and targeted cancer therapy. Availability and implementation: The MATLAB-package for our SCS is freely available from http://sysbio.sibcb.ac.cn/cb/chenlab/software.htm. Contact: zhangsw@nwpu.edu.cn or zengtao@sibs.ac.cn or lnchen@sibs.ac.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29329369 TI - A network approach to exploring the functional basis of gene-gene epistatic interactions in disease susceptibility. AB - Motivation: Individual genetic variants explain only a small fraction of heritability in some diseases. Some variants have weak marginal effects on disease risk, but their joint effects are significantly stronger when occurring together. Most studies on such epistatic interactions have focused on methods for identifying the interactions and interpreting individual cases, but few have explored their general functional basis. This was due to the lack of a comprehensive list of epistatic interactions and uncertainties in associating variants to genes. Results: We conducted a large-scale survey of published research articles to compile the first comprehensive list of epistatic interactions in human diseases with detailed annotations. We used various methods to associate these variants to genes to ensure robustness. We found that these genes are significantly more connected in protein interaction networks, are more co-expressed and participate more often in the same pathways. We demonstrate using the list to discover novel disease pathways. Contact: kevinyip@cse.cuhk.edu.hk. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29329370 TI - Defining Normal Parameters for the Male Nipple-Areola Complex: A Prospective Observational Study and Recommendations for Placement on the Chest Wall. AB - Background: The nipple-areola complex (NAC) is important aesthetically and functionally for both sexes. Methods for positioning the NAC in males are less well established in the literature compared to females but are just as important. Objectives: This study aims to determine the normal parameters for the male NAC, to review literature, and to present a reliable method for preoperative placement. Methods: Normal male patients, with no prior chest wall conditions, were prospectively recruited to participate. General demographics and chest wall dimensions were recorded-sternal notch to nipple (SNND), internipple (IND), anterior axillary folds distances (AFD), NAC, and chest circumference were measured. Comparisons were made using t test and ANOVA. Results: One hundred and fifty-eight patients were recruited (age range, 18-90 years); mostly (86.7%) with normal or overweight BMI. The IND averaged 249.4 mm, the SNND averaged 204.2 mm, and the AFD averaged 383.8 mm. Areola diameter averaged 26.6 mm and for the nipple, 6.9 mm. The IND:AFD ratio was 0.65. There was no statistical difference in the IND:AFD ratio, SNND, or NAC parameters comparing different ethnic groups. The SNND increased with greater BMI (P <= 0.001). Using these data, we suggest ideal NAC dimensions and devised a simple method for positioning of the NAC on the male chest wall. Conclusions: This is the largest study, with the widest range in age and BMI, to date on this topic. Although fewer men than women undergo surgery to the breast, there is a growing awareness for enhancing the appearance of the male chest wall. Level of Evidence 4: PMID- 29329372 TI - Enrichment analysis with EpiAnnotator. AB - Motivation: Deciphering relevant biological insights from epigenomic data can be a challenging task. One commonly used approach is to perform enrichment analysis. However, finding, downloading and using the publicly available functional annotations require time, programming skills and IT infrastructure. Here we describe the online tool EpiAnnotator for performing enrichment analyses on epigenomic data in a fast and user-friendly way. Results: EpiAnnotator is an R Package accompanied by a web interface. It contains regularly updated annotations from 4 public databases: Blueprint, RoadMap, GENCODE and the UCSC Genome Browser. Annotations are hosted locally or in a server environment and automatically updated by scripts of our own design. Thousands of tracks are available, reflecting data on a variety of tissues, cell types and cell lines from the human and mouse genomes. Users need to upload sets of selected and background regions. Results are displayed in customizable and easily interpretable figures. Availability and implementation: The R package and Shiny app are open source and available under the GPL v3 license. EpiAnnotator's web interface is accessible at http://computational-epigenomics.com/en/epiannotator. Contact: epiannotator@computational-epigenomics.com. PMID- 29329371 TI - Alcohol Use in Adolescence and Later Working Memory: Findings From a Large Population-Based Birth Cohort. AB - Aims: The study aimed to examine the association between adolescent alcohol use and working memory (WM) using a large population sample. Methods: Data from the Avon Longitudinal Study of Parents and Children were used to investigate the association between alcohol use at age 15 years and WM 3 years later, assessed using the N-back task (N ~ 3300). A three-category ordinal variable captured mutually exclusive alcohol groupings ranging in order of severity (i.e. low alcohol users, frequent drinkers and frequent/binge drinkers). Differential dropout was accounted for using multiple imputation and inverse probability weighting. Adjustment was made for potential confounders. Results: There was evidence of an association between frequent/binge drinking (compared to the low alcohol group) and poorer performance on the 3-back task after adjusting for sociodemographic confounding variables, WM at age 11 years, and experience of a head injury/unconsciousness before age 11 years (beta = -0.23, 95% CI = -0.37 to 0.09, P = 0.001). However, this association was attenuated (beta = -0.12, 95% CI = -0.27 to 0.03, P = 0.11) when further adjusted for baseline measures of weekly cigarette tobacco and cannabis use. Weaker associations were found for the less demanding 2-back task. We found no evidence to suggest frequent drinking was associated with performance on either task. Conclusions: We found weak evidence of an association between sustained heavy alcohol use in mid-adolescence and impaired WM 3 years later. Although we cannot fully rule out the possibility of reverse causation, several potential confounding variables were included to address the directionality of the relationship between WM and alcohol use problems. PMID- 29329374 TI - SimulaTE: simulating complex landscapes of transposable elements of populations. PMID- 29329373 TI - Co-existing Hepatitis C and Alcoholic Liver Disease: A Diminishing Indication for Liver Transplantation? AB - Aims: To provide an overview of published literature on the interaction of alcohol and hepatitis C virus (HCV) in the accelerated progression of liver disease to cirrhosis as relates to decision-making for the management of the liver transplant candidate and recipient. Methods: General PubMed search was employed along with expert input to identify the relevant articles on the topic. The authors also utilized both backward and forward citation review of the relevant articles and reviews to identify articles on identified topic. Results: In HCV cases, heavy alcohol use has been associated with more severe fibrosis, but even low rates of use may have deleterious effects. Patients with chronic hepatitis C and alcoholic liver disease can be cured of the HCV-theoretically positively impacting outcome and reducing the need for liver transplantation. Current antiviral therapy achieves virologic cure or sustained viral response (SVR) in over 90% of cases. Antiviral therapy is so effective that most liver transplant candidates or recipients can be cured of HCV either prior to or after transplantation. However, despite successful antiviral therapy, liver disease may progress after SVR due to the effects of ongoing alcohol use. Conclusion: Antiviral therapy in patients with HCV plus alcohol should improve pre- and post transplant outcomes, but providers must remain firm in limiting use of alcohol to avoid progression of liver disease post HCV cure. Short Summary: Abusive alcohol use and chronic hepatitis C virus (HCV) commonly co-exist and both need to be addressed in liver disease. With high rates of HCV cure with new therapies, attention needs to turn toward ongoing abusive alcohol patterns that may determinately impact liver health both before and after liver transplant. PMID- 29329375 TI - Heterogeneous Redistribution of Facial Subcategory Information Within and Outside the Face-Selective Domain in Primate Inferior Temporal Cortex. AB - The inferior temporal cortex (ITC) contains neurons selective to multiple levels of visual categories. However, the mechanisms by which these neurons collectively construct hierarchical category percepts remain unclear. By comparing decoding accuracy with simultaneously acquired electrocorticogram (ECoG), local field potentials (LFPs), and multi-unit activity in the macaque ITC, we show that low frequency LFPs/ECoG in the early evoked visual response phase contain sufficient coarse category (e.g., face) information, which is homogeneous and enhanced by spatial summation of up to several millimeters. Late-induced high-frequency LFPs additionally carry spike-coupled finer category (e.g., species, view, and identity of the face) information, which is heterogeneous and reduced by spatial summation. Face-encoding neural activity forms a cluster in similar cortical locations regardless of whether it is defined by early evoked low-frequency signals or late-induced high-gamma signals. By contrast, facial subcategory encoding activity is distributed, not confined to the face cluster, and dynamically increases its heterogeneity from the early evoked to late-induced phases. These findings support a view that, in contrast to the homogeneous and static coarse category-encoding neural cluster, finer category-encoding clusters are heterogeneously distributed even outside their parent category cluster and dynamically increase heterogeneity along with the local cortical processing in the ITC. PMID- 29329377 TI - Endometrial stem cell-derived granulocyte-colony stimulating factor attenuates endometrial fibrosis via sonic hedgehog transcriptional activator Gli2. AB - Intrauterine adhesion (IUA) is characterized by endometrial fibrosis, which ultimately leads to menstrual abnormalities, infertility, and recurrent miscarriages. The Shh/Gli2 pathway plays a critical role in tissue fibrogenesis and regeneration; Gli2 activation induces profibrogenic effects in various tissues, such as the liver and kidney. However, the role of Gli2 in endometrial fibrosis remains unknown. The purpose of this study was to test the hypothesis that activated Gli2 promotes endometrial fibrosis. Endometrial samples from moderate and severe IUA patients exhibited significantly enhanced expression of Gli2 compared with normal endometrial samples and mild IUA samples. Transfection with overactive Gli2 plasmids induced higher fibrosis-related protein expression, while blocking Gli2 signaling with cyclopamine caused the opposite effect in endometriotic stromal cells (ESCs), including inducing cell-cycle arrest. Menstrual-derived stem cell conditioned medium (MenSCs-CM) reduced endometrial fibrosis by reducing Gli2 protein levels and causing cell-cycle arrest in ESCs through granulocyte-colony stimulating factor (G-CSF). The effect was weakened after neutralization with a G-CSF antibody. Gli2 overexpression reduced the effects of MenSC-CM and G-CSF on fibrosis and cell-cycle progression in vitro. The antifibrotic effect of G-CSF was also observed in murine model. These findings demonstrate that Gli2 signaling promotes endometrial fibrosis, and the inhibition of Gli2 through MenSCs-secreted G-CSF may be of therapeutic value for managing endometrial fibrosis. PMID- 29329376 TI - Soil microbial species loss affects plant biomass and survival of an introduced bacterial strain, but not inducible plant defences. AB - Background and Aims: Plant growth-promoting rhizobacteria (PGPR) strains can influence plant-insect interactions. However, little is known about the effect of changes in the soil bacterial community in general and especially the loss of rare soil microbes on these interactions. Here, the influence of rare soil microbe reduction on induced systemic resistance (ISR) in a wild ecotype of Arabidopsis thaliana against the aphid Myzus persicae was investigated. Methods: To create a gradient of microbial abundances, soil was inoculated with a serial dilution of a microbial community and responses of Arabidopsis plants that originated from the same site as the soil microbes were tested. Plant biomass, transcription of genes involved in plant defences, and insect performance were measured. In addition, the effects of the PGPR strain Pseudomonas fluorescens SS101 on plant and insect performance were tested under the influence of the various soil dilution treatments. Key Results: Plant biomass showed a hump-shaped relationship with soil microbial community dilution, independent of aphid or Pseudomonas treatments. Both aphid infestation and inoculation with Pseudomonas reduced plant biomass, and led to downregulation of PR1 (salicylic acid responsive gene) and CYP79B3 (involved in synthesis of glucosinolates). Aphid performance and gene transcription were unaffected by soil dilution. Conclusions: Neither the loss of rare microbial species, as caused by soil dilution, nor Pseudomonas affect the resistance of A. thaliana against M. persicae. However, both Pseudomonas survival and plant biomass respond to rare species loss. Thus, loss of rare soil microbial species can have a significant impact on both above- and below-ground organisms. PMID- 29329378 TI - Historical crossroads in the conceptual delineation of apathy in Parkinson's disease. PMID- 29329379 TI - Asymptomatic Bacteriuria. PMID- 29329381 TI - The winding path towards rationale anti-thrombotic therapy to prevent stroke in patients with atrial fibrillation. PMID- 29329380 TI - Circulating microRNAs as potential biomarkers of disease activity and structural damage in ankylosing spondylitis patients. AB - Ankylosing spondylitis (AS) remains difficult to diagnose before irreversible damage to sacroiliac joint is noticeable. Circulating microRNAs have demonstrated to serve as diagnostic tools for several human diseases. Here, we analysed plasma microRNAs to identify potential AS biomarkers. Higher expression levels of microRNA (miR)-146a-5p, miR-125a-5p, miR-151a-3p and miR-22-3p, and lower expression of miR-150-5p, and miR-451a were found in AS versus healthy donors. Interestingly, higher miR-146a-5p, miR-125a-5p, miR-151a-3p, miR-22-3p and miR 451a expression was also observed in AS than psoriatic arthritis patients. The areas under the curve, generated to assess the accuracy of microRNAs as diagnostic biomarkers for AS, ranged from 0.614 to 0.781; the six-microRNA signature reached 0.957. Bioinformatics analysis revealed that microRNAs targeted inflammatory and bone remodeling genes, underlying their potential role in this pathology. Indeed, additional studies revealed an association between these six microRNAs and potential target proteins related to AS pathophysiology. Furthermore, miR-146a-5p, miR-125a-5p and miR-22-3p expression was increased in active versus non-active patients. Moreover, miR-125a-5p, miR-151a-3p, miR-150-5p and miR-451a expression was related to the presence of syndesmophytes in AS patients. Overall, this study identified a six-plasma microRNA signature that could be attractive candidates as non-invasive biomarkers for the AS diagnosis, and may help to elucidate the disease pathogenesis. PMID- 29329383 TI - Reply to Johnson. PMID- 29329382 TI - Adolescent Synthetic Cannabinoid Exposure Produces Enduring Changes in Dopamine Neuron Activity in a Rodent Model of Schizophrenia Susceptibility. AB - Background: Epidemiological studies recognize cannabis intake as a risk factor for schizophrenia, yet the majority of adolescents who use marijuana do not develop psychosis. Similarly, the abuse of synthetic cannabinoids poses a risk for psychosis. For these reasons, it is imperative to understand the effects of adolescent cannabinoid exposure in susceptible individuals. Methods: We recently developed a novel rodent model of schizophrenia susceptibility, the F2 methylazoxymethanol acetate rat, where only a proportion (~40%) of rats display a schizophrenia-like phenotype. Using this model, we examined the effects of adolescent synthetic cannabinoid exposure (0.2 mg/kg WIN55, 212-2, i.p.) or adolescent endocannabinoid upregulation (0.3 mg/kg URB597, i.p.) on dopamine neuron activity and amphetamine sensitivity in adulthood. Results: Adolescent synthetic cannabinoid exposure significantly increased the proportion of susceptible rats displaying a schizophrenia-like hyperdopaminergic phenotype after puberty without producing any observable alterations in control rats. Furthermore, this acquired phenotype appears to correspond with alterations in parvalbumin interneuron function within the hippocampus. Endocannabinoid upregulation during adolescence also increased the proportion of susceptible rats developing an increase in dopamine neuron activity; however, it did not alter the behavioral response to amphetamine, further emphasizing differences between exogenous and endogenous cannabinoids. Conclusions: Taken together, these studies provide experimental evidence that adolescent synthetic cannabinoid exposure may contribute to psychosis in susceptible individuals. PMID- 29329384 TI - Plaque erosion: a new in vivo diagnosis and a potential major shift in the management of patients with acute coronary syndromes. AB - Pathology and in vivo imaging studies have identified superficial plaque erosion as a frequent and important mechanism underlying acute coronary syndromes (ACS). In contrast with plaque rupture, the pathophysiological mechanisms leading to plaque erosion remain poorly understood. The advent of intravascular imaging techniques, particularly optical coherence tomography, has aided understanding of this mode of ACS in vivo by complementing previous insights from pathology studies. Appreciation of the distinct biological and clinical mechanisms of plaque erosion points to the possibility of tailored management strategies for patients presenting with ACS. PMID- 29329385 TI - Reassessing the Evidence for Capacity Limits in Neural Signals Related to Working Memory. AB - In 2004, two landmark studies described the discovery of brain imaging (functional magnetic resonance imaging and electroencephalography) signals that increase with the number of items held in visual working memory (WM). These studies claimed that the signals leveled off (plateaued) once the number of memoranda reached the capacity of WM, as estimated by the prevailing model of the time. However, alternative models were not considered, and changing concepts of WM in the more than a decade since these studies were published necessitate a re evaluation of their findings; newer models that provide the most accurate account of behavioral data do not incorporate a fixed limit on the number of items stored. Furthermore, an important claim made about the original studies, that signals plateau at each individual's estimated capacity, has never been tested. Here, we pit the plateau model of signal strength against an alternative, saturation model, a biophysically plausible account in which signals increase continuously without plateau. We show that the saturation model provides a better description of the original data, challenging the assumption that imaging results provide evidence for a fixed item limit in WM. PMID- 29329386 TI - The role of service readiness and health care facility factors in attrition from Option B+ in Haiti: a joint examination of electronic medical records and service provision assessment survey data. AB - Background: Option B+ is a strategy wherein pregnant or breastfeeding women with HIV are enrolled in lifelong antiretroviral therapy (ART) for prevention of mother-to-child transmission (PMTCT) of HIV. In Haiti, attrition from Option B+ is problematic and variable across health care facilities. This study explores service readiness and other facility factors as predictors of Option B+ attrition in Haiti. Methods: This analysis used longitudinal data from 2012 to 2014 from the iSante electronic medical record system and cross-sectional data from Haiti's 2013 Service Provision Assessment. Predictors included Service Availability and Readiness Assessment (SARA) measures for antenatal care (ANC), PMTCT, HIV care services and ART services; general facility characteristics and patient-level factors. Multivariable Cox proportional hazards models modelled the time to first attrition. Results: Analysis of data from 3147 women at 63 health care facilities showed no significant relationships between SARA measures and attrition. Having integrated ANC/PMTCT care and HIV-related training were significant protective factors. Being a public-sector facility, having a greater number of quality improvement activities and training in ANC were significant risk factors. Conclusion: Several facility-level factors were associated with Option B+ attrition. Future research is needed to explore unmeasured facility factors, clarify causal relationships, and incorporate community-level factors into the analysis of Option B+ attrition. PMID- 29329387 TI - Patients with acephalic spermatozoa syndrome linked to SUN5 mutations have a favorable pregnancy outcome from ICSI. AB - STUDY QUESTION: Are Sad1 and UNC84 domain containing 5 (SUN5) mutations associated with the outcomes of ICSI in patients with acephalic spermatozoa syndrome (ASS)? SUMMARY ANSWER: Despite highly abnormal sperm morphology, ASS patients with SUN5 mutations have a favorable pregnancy outcome following ICSI. WHAT IS KNOWN ALREADY: ASS is a rare cause of infertility characterized by the production of a majority of headless spermatozoa, along with a small proportion of intact spermatozoa with an abnormal head-tail junction. Previous studies have demonstrated that SUN5 mutations may cause ASS. Several studies showed that ICSI could help patients with ASS father children. STUDY DESIGN, SIZE, DURATION: This retrospective cohort study included 11 infertile ASS males with SUN5 mutations. Five of them underwent five ICSI cycles. Their ICSI results were compared to men with ASS without SUN5 mutations (n = 3) and to men with multiple morphological abnormalities of the sperm flagella (MMAF) (n = 9). All ICSI treatments were completed between Jan 2011 and May 2017. PARTICIPANTS/MATERIALS, SETTING, METHODS: Sanger DNA sequencing was used to detect mutations in SUN5. Clinical and biological data were collected from patients at the fertility center. MAIN RESULTS AND THE ROLE OF CHANCE: Sanger sequencing validated 11 patients with SUN5 mutations. Three novel mutations in SUN5 (c.829C>T [p.Q277*]; c.1067G>A [p.R356H]; c.211+1 insGT [p.S71Cfs11*]) were identified in three patients. The rates of fertilization, good-quality embryos and pregnancy for five patients with SUN5 mutations following ICSI were 81.5%, 81.8% and 100%, respectively. The rates of fertilization and good-quality embryos in patients with MMAF were significantly lower compared with ASS patients (65.6 versus 82.4%, P = 0.039 and 53.6 versus 85.2%, P = 0.031, respectively). There were no differences in ICSI results between ASS patients with and without SUN5 mutations. LIMITATIONS, REASONS FOR CAUTION: Only a small number patients with SUN5 mutations was available because of its rare incidence. WIDER IMPLICATIONS OF THE FINDINGS: Patients with ASS can be effectively treated with ICSI. SUN5 mutations may be one of the genetic causes of ASS. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by the National Natural Science Foundation of China (81401251, 81370754, and 81170559), the Jiangsu Province Special Program of Medical Science (BL2012009, ZX201110, FXK201221) and a project funded by PAPD of the Priority Academic Program Development of Jiangsu High Education Institutions (JX10231802). None of the authors have any competing interests. PMID- 29329388 TI - A Series of Deaths Involving Carfentanil in the UK and Associated Post-mortem Blood Concentrations. AB - The potent opioid and veterinary drug, carfentanil has recently entered the illicit drug market, especially in relation to heroin and cocaine. Recent publications have reported carfentanil concentrations found in fatalities occurring in the USA. This article presents the toxicological findings in seven heroin/cocaine cases occurring in the UK within a short period of time where carfentanil was detected and measured. Carfentanil was detected along with other drugs in all cases with no alcohol detected in the post-mortem blood in any of the cases. Of the other drugs detected, of particular note, cannabinoids were detected in three, cocaine in four, other opioids (methadone, dihydrocodeine and tramadol) in four and benzodiazepines were detected in four of the seven fatalities. A high concentration of ketamine and norketamine was found in one case. Morphine and its glucuronide metabolites were also measured where detected in six of the seven cases. The carfentanil concentrations were found to be between 0.22 and 3.3 ng/mL (mean 0.93, median 0.66 ng/mL) in post-mortem femoral blood. In one case where aortic and ventricular post-mortem blood was submitted for analysis in addition to femoral blood, comparative concentrations of 1.05 (aortic), 0.57 (ventricular) and 0.50 (femoral) ng/mL were found. The concentrations support the necessity to ensure laboratory detection methods for carfentanil and subsequent measurement are appropriate as concentrations below 0.3 ng/mL may be present in post-mortem blood. The concentrations also support the notion that there is no particular "toxic" or "fatal" post-mortem blood carfentanil concentration associated with its use. PMID- 29329389 TI - In vivo daptomycin efficacy against experimental vancomycin-resistant Enterococcus faecium endocarditis. AB - Objectives: Daptomycin has become a first-line therapeutic option for vancomycin resistant Enterococcus faecium infective endocarditis (IE). Although high doses (>=8 mg/kg) are often recommended, optimal doses, particularly for strains with MICs close to the susceptibility breakpoint (4 mg/L), are still debated. Methods: Daptomycin efficacy at doses equivalent to 8 mg/kg daptomycin (DAP8) and 12 mg/kg daptomycin (DAP12) in humans was evaluated in a rabbit model of aortic valve IE induced by 108 cfu of E. faecium reference strain Aus0004 (daptomycin MIC = 2 mg/L) or its in vitro mutant strain Mut4 (daptomycin MIC = 4 mg/L). Treatment began 48 h post-inoculation and lasted 5 days. Results: With Aus0004, the median log10 cfu/g of vegetations was significantly lower after DAP8 and DAP12 versus controls [6.05 (n = 12) and 2.15 (n = 10) versus 9.14 (n = 11), respectively; P < 0.001], with DAP12 being more effective than DAP8 concerning vegetation bacterial load (P < 0.001) and percentages of sterile vegetations (100% versus 0%, respectively; P < 0.001). Daptomycin-resistant Aus0004 mutants were detected in 8.3% of DAP8-treated vegetations. With Mut4, the median log10 cfu/g of vegetations was significantly lower after DAP8 and DAP12 versus controls [7.7 (n = 11) and 6.95 (n = 10) versus 9.59 (n = 11), respectively; P = 0.001 and P = 0.002], without any between-dose difference, but no vegetation was sterile. Moreover, 7 of 11 (63.6%) and 7 of 9 (77.8%) vegetations contained resistant mutants after DAP8 and DAP12, respectively. Conclusions: DAP12 was the most successful strategy against IE due to a WT E. faecium strain (daptomycin MIC = 2 mg/L). To treat IE strains with MIC = 4 mg/L, DAP8 or DAP12 monotherapy was poorly effective with the risk of resistant mutant emergence. Reassessment of the daptomycin susceptibility breakpoint for enterococci seems necessary. PMID- 29329390 TI - Human oocyte calcium analysis predicts the response to assisted oocyte activation in patients experiencing fertilization failure after ICSI. AB - STUDY QUESTION: Can human oocyte calcium analysis predict fertilization success after assisted oocyte activation (AOA) in patients experiencing fertilization failure after ICSI? SUMMARY ANSWER: ICSI-AOA restores the fertilization rate only in patients displaying abnormal Ca2+ oscillations during human oocyte activation. WHAT IS KNOWN ALREADY: Patients capable of activating mouse oocytes and who showed abnormal Ca2+ profiles after mouse oocyte Ca2+ analysis (M-OCA), have variable responses to ICSI-AOA. It remains unsettled whether human oocyte Ca2+ analysis (H-OCA) would yield an improved accuracy to predict fertilization success after ICSI-AOA. STUDY DESIGN, SIZE, DURATION: Sperm activation potential was first evaluated by MOAT. Subsequently, Ca2+ oscillatory patterns were determined with sperm from patients showing moderate to normal activation potential based on the capacity of human sperm to generate Ca2+ responses upon microinjection in mouse and human oocytes. Altogether, this study includes a total of 255 mouse and 122 human oocytes. M-OCA was performed with 16 different sperm samples before undergoing ICSI-AOA treatment. H-OCA was performed for 11 patients who finally underwent ICSI-AOA treatment. The diagnostic accuracy to predict fertilization success was calculated based on the response to ICSI-AOA. PARTICIPANTS/MATERIALS, SETTING, METHODS: Patients experiencing low or total failed fertilization after conventional ICSI were included in the study. All participants showed moderate to high rates of activation after MOAT. Metaphase II (MII) oocytes from B6D2F1 mice were used for M-OCA. Control fertile sperm samples were used to obtain a reference Ca2+ oscillation profile elicited in human oocytes. Donated human oocytes, non-suitable for IVF treatments, were collected and vitrified at MII stage for further analysis by H-OCA. MAIN RESULTS AND THE ROLE OF CHANCE: M-OCA and H-OCA predicted the response to ICSI-AOA in 8 out of 11 (73%) patients. Compared to M-OCA, H-OCA detected the presence of sperm activation deficiencies with greater sensitivity (75 vs 100%, respectively). ICSI AOA never showed benefit to overcome fertilization failure in patients showing normal capacity to generate Ca2+ oscillations in H-OCA and was likely to be beneficial in cases displaying abnormal H-OCA Ca2+ oscillations patterns. LIMITATIONS, REASONS FOR CAUTION: The scarce availability of human oocytes donated for research purposes is a limiting factor to perform H-OCA. Ca2+ imaging requires specific equipment to monitor fluorescence changes over time. WIDER IMPLICATIONS OF THE FINDINGS: H-OCA is a sensitive test to diagnose gamete-linked fertilization failure. H-OCA allows treatment counseling for couples experiencing ICSI failures to either undergo ICSI-AOA or to participate in gamete donation programs. The present data provide an important template of the Ca2+ signature observed during human fertilization in cases with normal, low and failed fertilization after conventional ICSI. STUDY FUNDING/COMPETING INTEREST(S): This work was supported by the Flemish fund for scientific research (FWO-Vlaanderen, G060615N). The authors have no conflict of interest to declare. PMID- 29329391 TI - Oxidative burst and Dectin-1-triggered phagocytosis affected by norepinephrine and endocannabinoids: implications for fungal clearance under stress. AB - A prolonged stress burden is known to hamper the efficiency of both the innate and the adaptive immune systems and to attenuate the stress responses by the catecholaminergic and endocannabinoid (EC) systems. Key mechanisms of innate immunity are the eradication of pathogens through phagocytosis and the respiratory burst. We tested the concentration-dependent, spontaneous and stimulated (via TNFalpha and N-formylmethionine-leucyl-phenylalanine) release of reactive oxygen species (ROS) by human polymorphonuclear leukocytes (PMNs) in vitro in response to norepinephrine (NE) and AM1241, a pharmacological ligand for the EC receptor CB2. We evaluated phagocytosis of Dectin-1 ligating zymosan particles and tested the cytokine response against Candida antigen in an in vitro cytokine release assay. Increasing concentrations of NE did not affect phagocytosis, yet stimulated ROS release was attenuated gradually reaching maximum suppression at 500 nM. Adrenergic receptor (AR) mechanisms using non-AR selective (labetalol) as well as specific alpha-(prazosin) and beta-(propranolol) receptor antagonists were tested. Results show that only labetalol and propranolol were able to recuperate cytotoxicity in the presence of NE, evidencing a beta-receptor-mediated effect. The CB2 agonist, AM1241, inhibited phagocytosis at 10 uM and spontaneous peroxide release by PMNs. Use of the inverse CB2 receptor agonist SR144528 led to partial recuperation of ROS production, confirming the functional role of CB2. Additionally, AM1241 delayed early activation of monocytes and induced suppression of IL-2 and IL-6 levels in response to Candida via lower activity of mammalian target of rapamycin (mTOR). These findings provide new insights into key mechanisms of innate immunity under stressful conditions where ligands to the sympatho-adrenergic and EC system are released. PMID- 29329393 TI - TGF-beta-mediated NADPH oxidase 4-dependent oxidative stress promotes colistin induced acute kidney injury. AB - Background: Colistin (polymyxin E) is an important constituent of the polymyxin class of cationic polypeptide antibiotics. Intrarenal oxidative stress can contribute to colistin-induced nephrotoxicity. Nicotinamide adenine dinucleotide 3-phosphate oxidases (Noxs) are important sources of reactive oxygen species. Among the various types of Noxs, Nox4 is predominantly expressed in the kidney. Objectives: We investigated the role of Nox4 and benefit of Nox4 inhibition in colistin-induced acute kidney injury using in vivo and in vitro models. Methods: Human proximal tubular epithelial (HK-2) cells were treated with colistin with or without NOX4 knockdown, or GKT137831 (most specific Nox1/4 inhibitor). Effects of Nox4 inhibition on colistin-induced acute kidney injury model in Sprague-Dawley rats were examined. Results: Nox4 expression in HK-2 cells significantly increased following colistin exposure. SB4315432 (transforming growth factor beta1 receptor I inhibitor) significantly inhibited Nox4 expression in HK-2 cells. Knockdown of NOX4 transcription reduced reactive oxygen species production, lowered the levels of pro-inflammatory markers (notably mitogen activated protein kinases) implicated in colistin-induced nephrotoxicity and attenuated apoptosis by altering Bax and caspase 3/7 activity. Pretreatment with GKT137831 replicated these effects mediated by downregulation of mitogen activated protein kinase activities. In a rat colistin-induced acute kidney injury model, administration of GKT137831 resulted in attenuated colistin-induced acute kidney injury as indicated by attenuated impairment of glomerulus function, preserved renal structures, reduced expression of 8-hydroxyguanosine and fewer apoptotic cells. Conclusions: Collectively, these findings identify Nox4 as a key source of reactive oxygen species responsible for kidney injury in colistin induced nephrotoxicity and highlight a novel potential way to treat drug-related nephrotoxicity. PMID- 29329392 TI - Risk of pancreatic cancer associated with family history of cancer and other medical conditions by accounting for smoking among relatives. AB - Background: Family history (FH) of pancreatic cancer (PC) has been associated with an increased risk of PC, but little is known regarding the role of inherited/environmental factors or that of FH of other comorbidities in PC risk. We aimed to address these issues using multiple methodological approaches. Methods: Case-control study including 1431 PC cases and 1090 controls and a reconstructed-cohort study (N = 16 747) made up of their first-degree relatives (FDR). Logistic regression was used to evaluate PC risk associated with FH of cancer, diabetes, allergies, asthma, cystic fibrosis and chronic pancreatitis by relative type and number of affected relatives, by smoking status and other potential effect modifiers, and by tumour stage and location. Familial aggregation of cancer was assessed within the cohort using Cox proportional hazard regression. Results: FH of PC was associated with an increased PC risk [odds ratio (OR) = 2.68; 95% confidence interval (CI): 2.27-4.06] when compared with cancer-free FH, the risk being greater when >= 2 FDRs suffered PC (OR = 3.88; 95% CI: 2.96-9.73) and among current smokers (OR = 3.16; 95% CI: 2.56-5.78, interaction FHPC*smoking P-value = 0.04). PC cumulative risk by age 75 was 2.2% among FDRs of cases and 0.7% in those of controls [hazard ratio (HR) = 2.42; 95% CI: 2.16-2.71]. PC risk was significantly associated with FH of cancer (OR = 1.30; 95% CI: 1.13-1.54) and diabetes (OR = 1.24; 95% CI: 1.01-1.52), but not with FH of other diseases. Conclusions: The concordant findings using both approaches strengthen the notion that FH of cancer, PC or diabetes confers a higher PC risk. Smoking notably increases PC risk associated with FH of PC. Further evaluation of these associations should be undertaken to guide PC prevention strategies. PMID- 29329395 TI - Open-Access Physical Activity Programs for Older Adults: A Pragmatic and Systematic Review. AB - Background and Objectives: Open-access, community-based programs are recommended to assist older adults in meeting physical activity guidelines, but the characteristics, impact, and scalability of these programs is less understood. The Land-Grant University Cooperative Extension System, an organization providing education through county-based educators, functions as a delivery system for these programs. A systematic review was conducted to determine characteristics of effective older adult physical activity programs and the extent to which programs delivered in Extension employ these characteristics. Research Design and Methods: A systematic review of peer-reviewed and grey literature was conducted from August 2016 to February 2017. The review was limited to open-access (available to all), community-based physical activity interventions for older adults (>=65 years of age). The peer-reviewed literature search was conducted in PubMed and EBSCOhost; the grey literature search for Extension interventions was conducted through Extension websites, Land-Grant Impacts, and the Journal of Extension. Results: Sixteen peer-reviewed studies and 17 grey literature sources met inclusion criteria and were analyzed. Peer-reviewed and Extension programs were similar in their limited use of behavioral theories and group-based strategies. Compared to Extension programs, those in the peer-reviewed literature were more likely to use a combination of physical activity components and be delivered by trained professionals. Discussion and Implications: The results indicate notable differences between peer-reviewed literature and Extension programs and present an opportunity for Extension programs to more effectively use evidence-based program characteristics, including behavioral theories and group dynamics, a combination of physical activity components, and educator/agent-trained delivery agents. PMID- 29329394 TI - Analysis of the Aedes albopictus C6/36 genome provides insight into cell line utility for viral propagation. AB - Background: The 50-year-old Aedes albopictus C6/36 cell line is a resource for the detection, amplification, and analysis of mosquito-borne viruses including Zika, dengue, and chikungunya. The cell line is derived from an unknown number of larvae from an unspecified strain of Aedes albopictus mosquitoes. Toward improved utility of the cell line for research in virus transmission, we present an annotated assembly of the C6/36 genome. Results: The C6/36 genome assembly has the largest contig N50 (3.3 Mbp) of any mosquito assembly, presents the sequences of both haplotypes for most of the diploid genome, reveals independent null mutations in both alleles of the Dicer locus, and indicates a male-specific genome. Gene annotation was computed with publicly available mosquito transcript sequences. Gene expression data from cell line RNA sequence identified enrichment of growth-related pathways and conspicuous deficiency in aquaporins and inward rectifier K+ channels. As a test of utility, RNA sequence data from Zika-infected cells were mapped to the C6/36 genome and transcriptome assemblies. Host subtraction reduced the data set by 89%, enabling faster characterization of nonhost reads. Conclusions: The C6/36 genome sequence and annotation should enable additional uses of the cell line to study arbovirus vector interactions and interventions aimed at restricting the spread of human disease. PMID- 29329396 TI - Patient-level benefits associated with decentralization of antiretroviral therapy services to primary health facilities in Malawi and Uganda. AB - Background: The Lablite project captured information on access to antiretroviral therapy (ART) at larger health facilities ('hubs') and lower-level health facilities ('spokes') in Phalombe district, Malawi and in Kalungu district, Uganda. Methods: We conducted a cross-sectional survey among patients who had transferred to a spoke after treatment initiation (Malawi, n=54; Uganda, n=33), patients who initiated treatment at a spoke (Malawi, n=50; Uganda, n=44) and patients receiving treatment at a hub (Malawi, n=44; Uganda, n=46). Results: In Malawi, 47% of patients mapped to the two lowest wealth quintiles (Q1-Q2); patients at spokes were poorer than at a hub (57% vs 23% in Q1-Q2; p<0.001). In Uganda, 7% of patients mapped to Q1-Q2; patients at the rural spoke were poorer than at the two peri-urban facilities (15% vs 4% in Q1-Q2; p<0.001). The median travel time one way to a current ART facility was 60 min (IQR 30-120) in Malawi and 30 min (IQR 20-60) in Uganda. Patients who had transferred to the spokes reported a median reduction in travel time of 90 min in Malawi and 30 min in Uganda, with reductions in distance and food costs. Conclusions: Decentralizing ART improves access to treatment. Community-level access to treatment should be considered to further minimize costs and time. PMID- 29329397 TI - MINAR1 is a Notch2-binding protein that inhibits angiogenesis and breast cancer growth. AB - Intrinsically disordered proteins (IDPs)/intrinsically unstructured proteins are characterized by the lack of fixed or stable tertiary structure, and are increasingly recognized as an important class of proteins with major roles in signal transduction and transcriptional regulation. In this study, we report the identification and functional characterization of a previously uncharacterized protein (UPF0258/KIAA1024), major intrinsically disordered Notch2-associated receptor 1 (MINAR1). While MINAR1 carries a single transmembrane domain and a short cytoplasmic domain, it has a large extracellular domain that shares no similarity with known protein sequences. Uncharacteristically, MINAR1 is a highly IDP with nearly 70% of its amino acids sequences unstructured. We demonstrate that MINAR1 physically interacts with Notch2 and its binding to Notch2 increases its stability and function. MINAR1 is widely expressed in various tissues including the epithelial cells of the breast and endothelial cells of blood vessels. MINAR1 plays a negative role in angiogenesis as it inhibits angiogenesis in cell culture and in mouse matrigel plug and zebrafish angiogenesis models. Furthermore, while MINAR1 is highly expressed in the normal human breast, its expression is significantly downregulated in advanced human breast cancer and its re-expression in breast cancer cells inhibited tumor growth. Our study demonstrates that MINAR1 is an IDP that negatively regulates angiogenesis and growth of breast cancer cells. PMID- 29329398 TI - LeNup: learning nucleosome positioning from DNA sequences with improved convolutional neural networks. AB - Motivation: Nucleosome positioning plays significant roles in proper genome packing and its accessibility to execute transcription regulation. Despite a multitude of nucleosome positioning resources available on line including experimental datasets of genome-wide nucleosome occupancy profiles and computational tools to the analysis on these data, the complex language of eukaryotic Nucleosome positioning remains incompletely understood. Results: Here, we address this challenge using an approach based on a state-of-the-art machine learning method. We present a novel convolutional neural network (CNN) to understand nucleosome positioning. We combined Inception-like networks with a gating mechanism for the response of multiple patterns and long term association in DNA sequences. We developed the open-source package LeNup based on the CNN to predict nucleosome positioning in Homo sapiens, Caenorhabditis elegans, Drosophila melanogaster as well as Saccharomyces cerevisiae genomes. We trained LeNup on four benchmark datasets. LeNup achieved greater predictive accuracy than previously published methods. Availability and implementation: LeNup is freely available as Python and Lua script source code under a BSD style license from https://github.com/biomedBit/LeNup. Contact: jhzhang@bit.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29329399 TI - Yield Losses in Transgenic Cry1Ab and Non-Bt Corn as Assessed Using a Crop-Life Table Approach. AB - In this study, we constructed crop life tables for Bacillus thuringiensis Berliner (Bt) Cry1Ab and non-Bt corn hybrids, in which yield-loss factors and abundance of predaceous arthropods were recorded during 2 yr at two locations. Corn kernel/grain was the yield component that had the heaviest losses and that determined the overall yield loss in the corn hybrids across years and locations. Yield losses in both corn hybrids were primarily caused by kernel-destroying insects. Helicoverpa zea (Boddie) and Spodoptera frugiperda (Smith) (Lepidoptera: Noctuidae) were the key loss factors at one location, while at the other, the key loss factor was the silk fly larvae, Euxesta spp. (Diptera: Ulidiidae). Although the realized yield of corn grains was not different (P > 0.05) between Cry1Ab and non-Bt corn hybrids, the Bt corn hybrid reduced (P < 0.05) the damage by H. zea and S. frugiperda in three of the four field trials, particularly at the location where Lepidoptera were the key loss factors. As expected, no reduction in the abundance of predaceous arthropods was observed in Cry1Ab corn fields. Various species of natural enemies were recorded, particularly the earwig Doru luteipes (Scudder) (Dermaptera: Forficulidae), which was the most abundant and frequent predaceous insect. These results indicate that integration of pest management practices should be pursued to effectively minimize losses by kernel-destroying insects during corn reproductive stages when growing non-Bt or certain low-dose Bt corn cultivars for fall armyworm and corn earworm, such as those producing Cry1Ab or other Cry toxins. PMID- 29329400 TI - The decision to work after state pension age and how it affects quality of life: evidence from a 6-year English panel study. AB - Background: despite an increasing proportion of older people working beyond State Pension Age (SPA), little is known about neither the motivations for this decision nor whether, and to what extent, working beyond SPA affects quality of life (QoL). Methods: QoL was measured using the CASP-19 scale. Respondents in paid work beyond SPA were distinguished based on whether they reported financial constraints as the main reason for continuing in work. Linear regression models were used to assess the associations between paid work beyond SPA and CASP-19 scores among men aged 65-74 and women aged 60-69 (n = 2,502) cross-sectionally and over time using Wave 4 and Wave 7 of the English Longitudinal Study of Ageing. Results: approximately, one in five respondents were in paid work beyond SPA, one-third of whom reported financial issues as the main reason. These individuals reported significantly lower CASP-19 scores (beta = -1.21) compared with those who retired at the expected/usual age. Respondents who declared being in paid work beyond SPA because they enjoyed their work or wanted to remain active, reported significantly higher QoL (beta = 1.62). Longitudinal analyses suggest that those who were working post-SPA by choice, but who had stopped working at follow-up, also reported marginally (P < 0.10) higher CASP-19 scores. Conclusions: potential QoL benefits of working beyond SPA need to be considered in light of individual motivations for extending working life. Given the trend towards working longer and the abolishment of mandatory retirement ages, it is important that older people maintain control over their decision to work in later life. PMID- 29329402 TI - Discovering foodborne illness in online restaurant reviews. AB - Objective: We developed a system for the discovery of foodborne illness mentioned in online Yelp restaurant reviews using text classification. The system is used by the New York City Department of Health and Mental Hygiene (DOHMH) to monitor Yelp for foodborne illness complaints. Materials and Methods: We built classifiers for 2 tasks: (1) determining if a review indicated a person experiencing foodborne illness and (2) determining if a review indicated multiple people experiencing foodborne illness. We first developed a prototype classifier in 2012 for both tasks using a small labeled dataset. Over years of system deployment, DOHMH epidemiologists labeled 13 526 reviews selected by this classifier. We used these biased data and a sample of complementary reviews in a principled bias-adjusted training scheme to develop significantly improved classifiers. Finally, we performed an error analysis of the best resulting classifiers. Results: We found that logistic regression trained with bias adjusted augmented data performed best for both classification tasks, with F1 scores of 87% and 66% for tasks 1 and 2, respectively. Discussion: Our error analysis revealed that the inability of our models to account for long phrases caused the most errors. Our bias-adjusted training scheme illustrates how to improve a classification system iteratively by exploiting available biased labeled data. Conclusions: Our system has been instrumental in the identification of 10 outbreaks and 8523 complaints of foodborne illness associated with New York City restaurants since July 2012. Our evaluation has identified strong classifiers for both tasks, whose deployment will allow DOHMH epidemiologists to more effectively monitor Yelp for foodborne illness investigations. PMID- 29329403 TI - Host-Tree Selection by the Invasive Argentine Ant (Hymenoptera: Formicidae) in Relation to Honeydew-Producing Insects. AB - The Argentine ant, Linepithema humile (Mayr; Hymenoptera: Formicidae), is one of the world's most hazardous invasive species, and thus its eradication from Japan is important. Physical and chemical controls can be expensive and cause strong adverse effects on local terrestrial ecosystems regardless of their high efficacy. Here, presence/absence of host-tree selection by Argentine ants was investigated to understand the ant-honeydew-producing insects interactions in order to develop new cultural controls compatible with biodiversity conservation. Abundance of Argentine ants and their tree utilization ratio was measured among dominant roadside trees (Cinnamomum camphora, Myrica rubra, Nerium indicum, Rhaphiolepis indica var. umbellata, Juniperus chinensis var. kaizuka) in two areas around Kobe, Japan. Almost all ants collected were Argentine ants suggesting that native ants would have been competitively excluded. Tree utilization of Argentine ants clearly differed among host trees. Abundance of both Argentine ants and honeydew-producing insects and tree utilization rate of the ants were significantly lower in especially C. camphora and J. chinensis. Few Argentine ants were observed trailing on C. camphora, J. Chinensis, and N. indicum, most probably due to low abundance of honeydew-producing insects on these trees with the toxic and repellent chemical components. On the other hand, high abundance of both Argentine ants and homopterans were found in M. rubra and especially R. indica. We suggest that reductions of R. indica and M. rubra would lead to a decrease in abundance of honeydew-producing insects, and thus effectively control populations of Argentine ants. At the same time, planting of C. camphora, J. Chinensis, and N. indicum may also play a role in restraint efficacy against invasion of the invasive ants. PMID- 29329404 TI - Response. PMID- 29329401 TI - Morphological and Functional Characterization of Non-fast-Spiking GABAergic Interneurons in Layer 4 Microcircuitry of Rat Barrel Cortex. AB - GABAergic interneurons are notorious for their heterogeneity, despite constituting a small fraction of the neuronal population in the neocortex. Classification of interneurons is crucial for understanding their widespread cortical functions as they provide a complex and dynamic network, balancing excitation and inhibition. Here, we investigated different types of non-fast spiking (nFS) interneurons in Layer 4 (L4) of rat barrel cortex using whole-cell patch-clamp recordings with biocytin-filling. Based on a quantitative analysis on a combination of morphological and electrophysiological parameters, we identified 5 distinct types of L4 nFS interneurons: 1) trans-columnar projecting interneurons, 2) locally projecting non-Martinotti-like interneurons, 3) supra granular projecting Martinotti-like interneurons, 4) intra-columnar projecting VIP-like interneurons, and 5) locally projecting neurogliaform-like interneurons. Trans-columnar projecting interneurons are one of the most striking interneuron types, which have not been described so far in Layer 4. They feature extensive axonal collateralization not only in their home barrel but also in adjacent barrels. Furthermore, we identified that most of the L4 nFS interneurons express somatostatin, while few are positive for the transcription factor Prox1. The morphological and electrophysiological characterization of different L4 nFS interneuron types presented here provides insights into their synaptic connectivity and functional role in cortical information processing. PMID- 29329405 TI - Solanaceous exocyst subunits are involved in immunity to diverse plant pathogens. AB - The exocyst, a multiprotein complex consisting of eight subunits, plays an essential role in many biological processes by mediating secretion of post-Golgi derived vesicles towards the plasma membrane. In recent years, roles for plant exocyst subunits in pathogen defence have been uncovered, largely based on studies in the model plant Arabidopsis. Only a few studies have been undertaken to assign the role of exocyst subunits in plant defence in other plants species, including crops. In this study, predicted protein sequences from exocyst subunits were retrieved by mining databases from the Solanaceous plants Nicotiana benthamiana, tomato, and potato. Subsequently, their evolutionary relationship with Arabidopsis exocyst subunits was analysed. Gene silencing in N. benthamiana showed that several exocyst subunits are required for proper plant defence against the (hemi-)biotrophic plant pathogens Phytophthora infestans and Pseudomonas syringae. In contrast, some exocyst subunits seem to act as susceptibility factors for the necrotrophic pathogen Botrytis cinerea. Furthermore, the majority of the exocyst subunits were found to be involved in callose deposition, suggesting that they play a role in basal plant defence. This study provides insight into the evolution of exocyst subunits in Solanaceous plants and is the first to show their role in immunity against multiple unrelated pathogens. PMID- 29329406 TI - Judgement of Breath Alcohol Concentration Levels Among Pedestrians in the Night Time Economy-A Street-Intercept Field Study. AB - Aims: To evaluate how well people in the night-time economy can assess their own breath alcohol concentration (BrAC), in the context of a change in breath alcohol limits for driving. Methods: We conducted a field study of 242 participants over 5 nights in the central business district of a university town in New Zealand. Participants completed a short survey, which included questions on their self reported level of intoxication and the self-estimated BrAC. At the conclusion of the interview each participant was breath-tested. We compared actual and self estimated BrAC using a scatter plot and multiple regression methods. Results: The average BrAC error was 61.7 MUg/l, meaning that on average participants overestimate their BrAC. Participants with a BrAC below 487 MUg/l tended to overestimate their BrAC on average, and those with a BrAC above 487 MUg/l tended to underestimate their BrAC on average. Regression results supported this observation, but also found that men who are not 'out on a typical night' overestimate their BrAC by more. Conclusions: Drinkers in this naturalistic setting have little idea of their level of intoxication, as measured by BrAC. However, this uncertainty may be advantageous to public health outcomes, since if drinkers are uncertain about their level of intoxication relative to the legal limit, this may lead them to avoid drunk driving. Short Summary: A field study of drinkers in the night-time economy of a New Zealand university town was conducted to evaluate how well drinkers can assess their breath alcohol concentration (BrAC). Drinkers in this setting inaccurately estimate their intoxication, and those with higher BrAC tended to underestimate their BrAC on average. PMID- 29329407 TI - Transplant Buccaneers: P.K. Sen and India's First Heart Transplant, February 1968. AB - On 17 February 1968, Bombay surgeon Prafulla Kumar Sen transplanted a human heart, becoming the fourth surgeon in the world to attempt the feat. Even though the patient survived just three hours, the feat won Sen worldwide acclaim. The ability of Sen's team to join the ranks of the world's surgical pioneers raises interesting questions. How was Sen able to transplant so quickly? He had to train a team of collaborators, import or reverse engineer technologies and techniques that had been developed largely in the United States, and begin conversations with Indian political authorities about the contested concept of brain death. The effort that this required raises questions of why. Sen, who worked at a city hospital in Bombay that could not provide basic care for all its citizens, sought a technology that epitomized high-risk high-cost, health care. To accomplish his feat, Sen navigated Cold War tensions and opportunities, situating his interests into those of his hospital, municipal authorities, Indian nationalism, Soviet and American authorities, the Rockefeller Foundation, and others. The many contexts and interests that made Sen's work possible created opportunities for many different judgments about the success or failure of medical innovation. PMID- 29329408 TI - An Orientation Map for Disparity-Defined Edges in Area V4. AB - Binocular disparity information is an important source of 3D perception. Neurons sensitive to binocular disparity are found in almost all major visual areas in nonhuman primates. In area V4, disparity processes are suggested for the purposes of 3D-shape representation and fine disparity perception. However, whether neurons in V4 are sensitive to disparity-defined edges used in shape representation is not clear. Additionally, a functional organization for disparity edges has not been demonstrated so far. With intrinsic signal optical imaging, we studied functional organization for disparity edges in the monkey visual areas V1, V2, and V4. We found that there is an orientation map in V4 activated by edges purely defined by binocular disparity. This map is consistent with the orientation map obtained with regular luminance-defined edges, indicating a cue-invariant edge representation in this area. In contrast, such a map is much weaker in V2 and totally absent in V1. These findings reveal a hierarchical processing of 3D shape along the ventral pathway and the important role that V4 plays in shape-from-disparity detection. PMID- 29329409 TI - Recent development of Ori-Finder system and DoriC database for microbial replication origins. AB - DNA replication begins at replication origins in all three domains of life. Identification and characterization of replication origins are important not only in providing insights into the structure and function of the replication origins but also in understanding the regulatory mechanisms of the initiation step in DNA replication. The Z-curve method has been used in the identification of replication origins in archaeal genomes successfully since 2002. Furthermore, the Web servers of Ori-Finder and Ori-Finder 2 have been developed to predict replication origins in both bacterial and archaeal genomes based on the Z-curve method, and the replication origins with manual curation have been collected into an online database, DoriC. Ori-Finder system and DoriC database are currently used in the research field of DNA replication origins in prokaryotes, including: (i) identification of oriC regions in bacterial and archaeal genomes; (ii) discovery and analysis of the conserved sequences within oriC regions; and (iii) strand-biased analysis of bacterial genomes.Up to now, more and more predicted results by Ori-Finder system were supported by subsequent experiments, and Ori Finder system has been used to identify the replication origins in > 100 newly sequenced prokaryotes in their genome reports. In addition, the data in DoriC database have been widely used in the large-scale analyses of replication origins and strand bias in prokaryotic genomes. Here, we review the development of Ori Finder system and DoriC database as well as their applications. Some future directions and aspects for extending the application of Ori-Finder and DoriC are also presented. PMID- 29329411 TI - RE: Long-term Safety of Pregnancy Following Breast Cancer According to Estrogen Receptor Status. PMID- 29329410 TI - 1918 H1N1 Influenza Virus Replicates and Induces Proinflammatory Cytokine Responses in Extrarespiratory Tissues of Ferrets. AB - Background: The 1918 Spanish H1N1 influenza pandemic was the most severe recorded influenza pandemic with an estimated 20-50 million deaths worldwide. Even though it is known that influenza viruses can cause extrarespiratory tract complications which are often severe or even fatal-the potential contribution of extrarespiratory tissues to the pathogenesis of 1918 H1N1 virus infection has not been studied comprehensively. Methods: Here, we performed a time-course study in ferrets inoculated intranasally with 1918 H1N1 influenza virus, with special emphasis on the involvement of extrarespiratory tissues. Respiratory and extrarespiratory tissues were collected after inoculation for virological, histological, and immunological analysis. Results: Infectious virus was detected at high titers in respiratory tissues and, at lower titers in most extrarespiratory tissues. Evidence for active virus replication, as indicated by the detection of nucleoprotein by immunohistochemistry, was observed in the respiratory tract, peripheral and central nervous system, and liver. Proinflammatory cytokines were up-regulated in respiratory tissues, olfactory bulb, spinal cord, liver, heart, and pancreas. Conclusions: 1918 H1N1 virus spread to and induced cytokine responses in tissues outside the respiratory tract, which likely contributed to the severity of infection. Moreover, our data support the suggested link between 1918 H1N1 infection and central nervous system disease. PMID- 29329413 TI - Mapping a Filoviral Serologic Footprint in the Democratic Republic of the Congo: Who Goes There? PMID- 29329412 TI - Lhx8 ablation leads to massive autophagy of mouse oocytes associated with DNA damage. AB - Following proliferation of oogonia in mammals, great numbers of germ cells are discarded, primarily by apoptosis, while the remainder form primordial follicles (the ovarian reserve) that determine fertility and reproductive lifespan. More massive, rapid, and essentially total loss of oocytes, however, occurs when the transcription factor Lhx8 is ablated-though the cause and mechanism of germ cell loss from the Lhx8-/- ovaries has been unknown. We found that Lhx8-/- ovaries maintain the same number of germ cells throughout embryonic development; rapid decrease in the pool of oocytes starts shortly before birth. The loss results from activation of autophagy, which becomes overwhelming within the first postnatal week, with extracellular matrix proteins filling the space previously occupied by follicles to produce a fibrotic ovary. Associated with this process, as early as a few days before birth, Lhx8-/- oocytes failed to repair DNA damage which normally occurs when meiosis is initiated during embryonic development; and DNA damage repair genes were downregulated throughout the oocyte short lifespan. Based on gene expression analyses and morphological changes, we propose a model in which lineage-restricted failure of DNA repair triggers germ cell autophagy, causing premature depletion of the ovarian reserve in Lhx8-/- mice. PMID- 29329414 TI - Is big bad or bearable? Long-term renal transplant outcomes in obese recipients. AB - Background: The global obesity epidemic has implications for kidney transplantation. There are conflicting reports regarding the impact of obesity on long-term post-transplant outcomes. Aim: To explore the impact of body mass index (BMI) on long-term outcomes after kidney transplantation. Design: The association between BMI and cardiovascular disease, cancer, post-transplant diabetes mellitus, graft and recipient survival was investigated in recipients who had been transplanted at least ten years previously. Methods: All consecutive adult renal transplant recipients who received first, deceased donor, transplants between 1986 and 2005 in Northern Ireland were followed-up until 2016. Results: A total of 328 patients were eligible. Of them, 96 were overweight with a BMI 25.0 29.9 kg/m2, and 56 were obese with a BMI exceeding 29.9 kg/m2. Median follow-up time was 16.7 years. In multivariate analysis recipient BMI was associated with the development of post-transplant diabetes mellitus (P=0.003), but not with new cardiovascular disease (P=0.78). Cancer was less common in recipients with a higher BMI (hazard ratio (HR) 0.58, P < 0.001). BMI at the time of transplantation did not significantly influence graft (P=0.28) or recipient survival (P=0.13). Conclusions: Increased BMI at time of transplantation is associated with an increased risk of post-transplant diabetes mellitus but not new cardiovascular disease or malignancy. Long-term graft and recipient survival is not impacted. Potential recipients should not be excluded from transplantation solely on the basis of obesity, rather it should be considered as one part of an individualized risk stratification, based on comorbidity and considering the risk of death on maintenance dialysis. PMID- 29329415 TI - Establishment of a three-dimensional model to study human uterine angiogenesis. AB - STUDY QUESTION: Can primary human uterine microvascular endothelial cells (UtMVECs) be used as a model to study uterine angiogenic responses in vitro that are relevant in pregnancy? SUMMARY ANSWER: UtMVECs demonstrated angiogenic responses when stimulated with proangiogenic factors, including sphingosine 1 phosphate (S1P), vascular endothelial growth factor (VEGF), basic fibroblast growth factor (bFGF), physiological levels of wall shear stress (WSS), human chorionic gonadotropin (hCG) and various combinations of estrogen and progesterone. WHAT IS KNOWN ALREADY: During sprouting angiogenesis, signaling from growth factors and cytokines induces a monolayer of quiescent endothelial cells (ECs) lining the vasculature to degrade the extracellular matrix and invade the surrounding tissue to form new capillaries. During pregnancy and the female reproductive cycle, the uterine endothelium becomes activated and undergoes sprouting angiogenesis to increase the size and number of blood vessels in the endometrium. STUDY DESIGN, SIZE, DURATION: The study was designed to examine the angiogenic potential of primary human UtMVECs using the well-characterized human umbilical vein EC (HUVEC) line as a control to compare angiogenic potential. ECs were seeded onto three-dimensional (3D) collagen matrices, supplemented with known proangiogenic stimuli relevant to pregnancy and allowed to invade for 24 h. Sprouting responses were analyzed using manual and automated methods for quantification. PARTICIPANTS/MATERIALS, SETTING, METHODS: RT-PCR, Western blot analysis and immunostaining were used to characterize UtMVECs. Angiogenic responses were examined using 3D invasion assays. Western blotting was used to confirm signaling responses after proangiogenic lipid, pharmacological inhibitor, and recombinant lentiviral treatments. All experiments were repeated at least three times. MAIN RESULTS AND THE ROLE OF CHANCE: After ensuring that UtMVECs expressed the proper endothelial markers, we found that UtMVECs invade 3D collagen matrices dose-dependently in response to known proangiogenic stimuli (e.g. S1P, VEGF, bFGF, hCG, estrogen, progesterone and WSS) present during early pregnancy. Invasion responses were positively correlated with phosphorylation of phosphatidylinositol 3-kinase (PI3K)/protein kinase B (Akt) and p42/p44 mitogen activated protein kinase (ERK). Inhibition of these second messengers significantly impaired sprouting (P < 0.01). Gene silencing of membrane type 1 matrix metalloproteinase using multiple approaches completely abrogated sprouting (P < 0.001). Finally, UtMVECs displayed a unique ability to undergo sprouting in response to hCG, and combined estrogen and progesterone treatment. LARGE SCALE DATA: Not applicable. LIMITATIONS, REASONS FOR CAUTION: The study of uterine angiogenesis in vitro has limitations and any findings many not fully represent the in vivo state. However, these experiments do provide evidence for the ability of UtMVECs to be used in functional sprouting assays in a 3D environment, stimulated by physiological factors that are produced locally within the uterus during early pregnancy. WIDER IMPLICATIONS OF THE FINDINGS: We show that UtMVECs can be used reliably to investigate how growth factors, hormones, lipids and other factors, such as flow, affect angiogenesis in the uterus. STUDY FUNDING/COMPETING INTERESTS: This work was supported by NIH award HL095786 to K.J.B. The authors have no conflicts of interest. PMID- 29329416 TI - Automatic, electrocardiographic-based detection of autonomic arousals and their association with cortical arousals, leg movements, and respiratory events in sleep. AB - Study Objectives: The current definition of sleep arousals neglects to address the diversity of arousals and their systemic cohesion. Autonomic arousals (AA) are autonomic activations often associated with cortical arousals (CA), but they may also occur in relation to a respiratory event, a leg movement event or spontaneously, without any other physiological associations. AA should be acknowledged as essential events to understand and explore the systemic implications of arousals. Methods: We developed an automatic AA detection algorithm based on intelligent feature selection and advanced machine learning using the electrocardiogram. The model was trained and tested with respect to CA systematically scored in 258 (181 training size/77 test size) polysomnographic recordings from the Wisconsin Sleep Cohort. Results: A precision value of 0.72 and a sensitivity of 0.63 were achieved when evaluated with respect to CA. Further analysis indicated that 81% of the non-CA-associated AAs were associated with leg movement (38%) or respiratory (43%) events. Conclusions: The presented algorithm shows good performance when considering that more than 80% of the false positives (FP) found by the detection algorithm appeared in relation to either leg movement or respiratory events. This indicates that most FP constitute autonomic activations that are indistinguishable from those with cortical cohesion. The proposed algorithm provides an automatic system trained in a clinical environment, which can be utilized to analyze the systemic and clinical impacts of arousals. PMID- 29329418 TI - Variability of Late-Night Salivary Cortisol in Cushing Disease: A Prospective Study. AB - Background: The frequency of variable hormonogenesis in patients with Cushing disease (CD) but without cyclical symptoms is unclear. Aim: To assess the frequency of variable hormonogenesis in patients presenting with CD. Methods: Over a 6-month period, patients with confirmed or suspected CD provided late night salivary samples for up to 42 consecutive nights. Results: Of 19 patients confirmed to have CD, 16 provided at least 7 consecutive salivary samples, and 13 provided at least 21; these 16 patients are the subjects of this report. Twelve patients had at least three peak and two trough levels of late-night salivary cortisol (LNSC) but in only two patients were strict criteria for cyclical hormonogenesis fulfilled; variation was assessed as random in the others. Eight patients had de novo CD, and eight had recurrent/persistent disease. All patients with recurrent/persistent CD had two or more normal results, and in four of these patients, >50% of LNSC were normal. In six patients with de novo disease with at least one normal LNSC level, the maximum levels ranged from 1.55 to 15.5 times the upper limit of normal. Conclusions: Extreme fluctuations of cortisol production, measured by sequential LNSC, are common in CD. In newly diagnosed disease, this may only occasionally impair diagnostic ability, whereas in most patients with recurrent/persistent disease after pituitary surgery, LNSC is frequently within the reference range, with potential to cause diagnostic problems. PMID- 29329417 TI - Effects of Alcohol Cues on MRS Glutamate Levels in the Anterior Cingulate. AB - Growing evidence suggests that glutamate neurotransmission plays a critical role in alcohol addiction. Cue-induced change of glutamate has been observed in animal studies but never been investigated in humans. This work investigates cue-induced change in forebrain glutamate in individuals with alcohol use disorder (AUD). A total of 35 subjects (17 individuals with AUD and 18 healthy controls) participated in this study. The glutamate concentration was measured with single voxel 1H-MR spectroscopy at the dorsal anterior cingulate. Two MRS sessions were performed in succession, the first to establish basal glutamate levels and the second to measure the change in response to alcohol cues. The changes in glutamate were quantified for both AUD subjects and controls. A mixed model ANOVA and t-tests were performed for statistical analysis. ANOVA revealed a main effect of cue-induced decrease of glutamate level in the anterior cingulate cortex (ACC). A significant interaction revealed that only AUD subjects showed significant decrease of glutamate in the ACC. There were no significant group differences in the level of basal glutamate. However, a negative correlation was found between the basal glutamate level and the number of drinking days in the past 2 weeks for the AUD subjects. Collectively, our results indicate that glutamate in key areas of the forebrain reward circuit is modulated by alcohol cues in early alcohol dependence. PMID- 29329419 TI - A Single Mutation Unlocks Cascading Exaptations in the Origin of a Potent Pitviper Neurotoxin. AB - Evolutionary innovations and complex phenotypes seemingly require an improbable amount of genetic change to evolve. Rattlesnakes display two dramatically different venom phenotypes. Type I venoms are hemorrhagic with low systemic toxicity and high expression of tissue-destroying snake venom metalloproteinases. Type II venoms are highly neurotoxic and lack snake venom metalloproteinase expression and associated hemorrhagic activity. This dichotomy hinges on Mojave toxin (MTx), a phospholipase A2 (PLA2) based beta-neurotoxin expressed in Type II venoms. MTx is comprised of a nontoxic acidic subunit that undergoes extensive proteolytic processing and allosterically regulates activity of a neurotoxic basic subunit. Evolution of the acidic subunit presents an evolutionary challenge because the need for high expression of a nontoxic venom component and the proteolytic machinery required for processing suggests genetic changes of seemingly little immediate benefit to fitness. We showed that MTx evolved through a cascading series of exaptations unlocked by a single nucleotide change. The evolution of one new cleavage site in the acidic subunit unmasked buried cleavage sites already present in ancestral PLA2s, enabling proteolytic processing. Snake venom serine proteases, already present in the venom to disrupt prey hemostasis, possess the requisite specificities for MTx acidic subunit proteolysis. The dimerization interface between MTx subunits evolved by exploiting a latent, but masked, hydrophobic interaction between ancestral PLA2s. The evolution of MTx through exaptation of existing functional and structural features suggests complex phenotypes that depend on evolutionary innovations can arise from minimal genetic change enabled by prior evolution. PMID- 29329421 TI - Beta-2 microglobulin clearance in high-flux dialysis and convective dialysis modalities: a meta-analysis of published studies. PMID- 29329420 TI - Pyrrolidine dithiocarbamate reverses Bcl-xL-mediated apoptotic resistance to doxorubicin by inducing paraptosis. AB - Elevated Bcl-xL expression in cancer cells contributes to doxorubicin (DOX) resistance, leading to failure in chemotherapy. In addition, the clinical use of high-dose doxorubicin (DOX) in cancer therapy has been limited by issues with cardiotoxicity and hepatotoxicity. Here, we show that co-treatment with pyrrolidine dithiocarbamate (PDTC) attenuates DOX-induced apoptosis in Chang-L liver cells and human hepatocytes, but overcomes DOX resistance in Bcl-xL overexpressing Chang-L cells and several hepatocellular carcinoma (HCC) cell lines with high Bcl-xL expression. Additionally, combined treatment with DOX and PDTC markedly retarded tumor growth in a Huh-7 HCC cell xenograft tumor model, compared to either mono-treatment. These results suggest that DOX/PDTC co treatment may provide a safe and effective therapeutic strategy against malignant hepatoma cells with Bcl-xL-mediated apoptotic defects. We also found that induction of paraptosis, a cell death mode that is accompanied by dilation of the endoplasmic reticulum and mitochondria, is involved in this anti-cancer effect of DOX/PDTC. The intracellular glutathione levels were reduced in Bcl-xL overexpressing Chang-L cells treated with DOX/PDTC, and DOX/PDTC-induced paraptosis was effectively blocked by pretreatment with thiol-antioxidants, but not by non-thiol antioxidants. Collectively, our results suggest that disruption of thiol homeostasis may critically contribute to DOX/PDTC-induced paraptosis in Bcl-xL-overexpressing cells. PMID- 29329422 TI - Proscriptive vs. Prescriptive Health Recommendations to Drink Alcohol Within Recommended Limits: Effects on Moral Norms, Reactance, Attitudes, Intentions and Behaviour Change. AB - Aims: Health advice can be framed in terms of prescriptive rules (what people should do, e.g. you should drink alcohol within recommended limits) or proscriptive rules (what people should not do, e.g. you should not drink alcohol above recommended limits). The current research examines the differing effect that these two types of injunction have on participants' moral norms, reactance, attitudes and intentions to consume alcohol within moderation, and their subsequent alcohol consumption. Methods: Participants (N = 529) completed an online questionnaire which asked them to report their previous 7 days' alcohol consumption. They then read either a proscriptive or a prescriptive health message and completed measures of moral norms, reactance, attitudes and intentions to drink alcohol only within recommended limits. Subsequent alcohol consumption was reported 7 days later. Results: The results showed that across all participants, the proscriptive message elicited stronger moral norms than did the prescriptive message, which in turn were associated with more positive attitudes and intentions to drink within recommended limits. For male participants who reported drinking more alcohol than recommended at baseline, the proscriptive message elicited more reported alcohol consumption over the subsequent 7 days. Conclusions: Proscriptive messages may be effective at eliciting stronger moral norms to drink within government recommended guidelines. However, reactance may occur for high relevance groups. Practical and theoretical implications are discussed. PMID- 29329423 TI - Development and early validation of a patient-reported outcome measure to assess sleep amongst people experiencing problems with alcohol or other drugs. AB - Study Objectives: To develop a patient-reported outcome measure to assess sleep amongst people experiencing problems with alcohol or other drugs. Methods: Item development included secondary analyses of qualitative interviews with drug or alcohol users in residential treatment, a review of validated sleep measures, focus groups with drug or alcohol users in residential treatment, and feedback from drug or alcohol users recruited from community and residential settings. An initial version of the measure was completed by 549 current and former drug or alcohol users (442 in person and 107 online). Analyses comprised classical test theory methods, exploratory and confirmatory factor analysis, measurement invariance assessment, and item response theory (IRT). Results: The initial measure (30 items) had good content and face validity and was named the Substance Use Sleep Scale (SUSS) by addiction service users. After seven items were removed due to low item-factor loadings, two factors were retained and labeled: "Mind and Body Sleep Problems" (14 items) and "Substance-Related Sleep Problems" (nine items). Measurement invariance was confirmed with respect to gender, age, and administration format. IRT (information) and classical test theory (internal consistency and stability) indicated measure reliability. Standard parametric and nonparametric techniques supported convergent and discriminant validity. Conclusions: SUSS is an easy-to-complete patient-reported outcome measure of sleep for people with drug or alcohol problems. It can be used by those concerned about their own sleep, and by treatment providers and researchers seeking to better understand, assess, and potentially treat sleep difficulties amongst this population. Further validity testing with larger and more diverse samples is now required. PMID- 29329424 TI - Brassinosteroids regulate pavement cell growth by mediating BIN2-induced microtubule stabilization. AB - Brassinosteroids (BRs), a group of plant steroid hormones, play important roles in regulating plant development. The cytoskeleton also affects key developmental processes and a deficiency in BR biosynthesis or signaling leads to abnormal phenotypes similar to those of microtubule-defective mutants. However, how BRs regulate microtubule and cell morphology remains unknown. Here, using liquid chromatography-tandem mass spectrometry, we identified tubulin proteins that interact with Arabidopsis BRASSINOSTEROID INSENSITIVE2 (BIN2), a negative regulator of BR responses in plants. In vitro and in vivo pull-down assays confirmed that BIN2 interacts with tubulin proteins. High-speed co-sedimentation assays demonstrated that BIN2 also binds microtubules. The Arabidopsis genome also encodes two BIN2 homologs, BIN2-LIKE 1 (BIL1) and BIL2, which function redundantly with BIN2. In the bin2-3 bil1 bil2 triple mutant, cortical microtubules were more sensitive to treatment with the microtubule-disrupting drug oryzalin than in wild-type, whereas in the BIN2 gain-of-function mutant bin2 1, cortical microtubules were insensitive to oryzalin treatment. These results provide important insight into how BR regulates plant pavement cell and leaf growth by mediating the stabilization of microtubules by BIN2. PMID- 29329426 TI - A Practical Guide to Estimating the Heritability of Pathogen Traits. AB - Pathogen traits, such as the virulence of an infection, can vary significantly between patients. A major challenge is to measure the extent to which genetic differences between infecting strains explain the observed variation of the trait. This is quantified by the trait's broad-sense heritability, H2. A recent discrepancy between estimates of the heritability of HIV-virulence has opened a debate on the estimators' accuracy. Here, we show that the discrepancy originates from model limitations and important lifecycle differences between sexually reproducing organisms and transmittable pathogens. In particular, current quantitative genetics methods, such as donor-recipient regression (DR) of surveyed serodiscordant couples and the phylogenetic mixed model (PMM), are prone to underestimate H2, because they neglect or do not fit to the loss of resemblance between transmission partners caused by within-host evolution. In a phylogenetic analysis of 8,483 HIV patients from the UK, we show that the phenotypic correlation between transmission partners decays with the amount of within-host evolution of the virus. We reproduce this pattern in toy-model simulations and show that a phylogenetic Ornstein-Uhlenbeck model (POUMM) outperforms the PMM in capturing this correlation pattern and in quantifying H2. In particular, we show that POUMM outperforms PMM even in simulations without selection - as it captures the mentioned correlation pattern - which has not been appreciated until now. By cross-validating the POUMM estimates with ANOVA on closest phylogenetic pairs (ANOVA-CPP), we obtain H2~0.2, meaning about 20% of the variation in HIV-virulence is explained by the virus genome both for European and African data. PMID- 29329425 TI - Comparison of Hepatic 2D Sandwich Cultures and 3D Spheroids for Long-term Toxicity Applications: A Multicenter Study. AB - Primary human hepatocytes (PHHs) are commonly used for in vitro studies of drug induced liver injury. However, when cultured as 2D monolayers, PHH lose crucial hepatic functions within hours. This dedifferentiation can be ameliorated when PHHs are cultured in sandwich configuration (2Dsw), particularly when cultures are regularly re-overlaid with extracellular matrix, or as 3D spheroids. In this study, the 6 participating laboratories evaluated the robustness of these 2 model systems made from cryopreserved PHH from the same donors considering both inter donor and inter-laboratory variability and compared their suitability for use in repeated-dose toxicity studies using 5 different hepatotoxins with different toxicity mechanisms. We found that expression levels of proteins involved in drug absorption, distribution, metabolism, and excretion, as well as catalytic activities of 5 different CYPs, were significantly higher in 3D spheroid cultures, potentially affecting the exposure of the cells to drugs and their metabolites. Furthermore, global proteomic analyses revealed that PHH in 3D spheroid configuration were temporally stable whereas proteomes from the same donors in 2Dsw cultures showed substantial alterations in protein expression patterns over the 14 days in culture. Overall, spheroid cultures were more sensitive to the hepatotoxic compounds investigated, particularly upon long-term exposures, across testing sites with little inter-laboratory or inter-donor variability. The data presented here suggest that repeated-dosing regimens improve the predictivity of in vitro toxicity assays, and that PHH spheroids provide a sensitive and robust system for long-term mechanistic studies of drug induced hepatotoxicity, whereas the 2Dsw system has a more dedifferentiated phenotype and lower sensitivity to detect hepatotoxicity. PMID- 29329427 TI - Ozone-Induced Vascular Contractility and Pulmonary Injury Are Differentially Impacted by Diets Enriched With Coconut Oil, Fish Oil, and Olive Oil. AB - Fish, olive, and coconut oil dietary supplementation have several cardioprotective benefits, but it is not established if they protect against air pollution-induced adverse effects. We hypothesized that these dietary supplements would attenuate ozone-induced systemic and pulmonary effects. Male Wistar Kyoto rats were fed either a normal diet, or a diet supplemented with fish, olive, or coconut oil for 8 weeks. Animals were then exposed to air or ozone (0.8 ppm), 4 h/day for 2 days. Ozone exposure increased phenylephrine-induced aortic vasocontraction, which was completely abolished in rats fed the fish oil diet. Despite this cardioprotective effect, the fish oil diet increased baseline levels of bronchoalveolar lavage fluid (BALF) markers of lung injury and inflammation. Ozone-induced pulmonary injury/inflammation were comparable in rats on normal, coconut oil, and olive oil diets with altered expression of markers in animals fed the fish oil diet. Fish oil, regardless of exposure, led to enlarged, foamy macrophages in the BALF that coincided with decreased pulmonary mRNA expression of cholesterol transporters, cholesterol receptors, and nuclear receptors. Serum microRNA profile was assessed and demonstrated marked depletion of a variety of microRNAs in animals fed the fish oil diet, several of which were of splenic origin. No ozone-specific changes were noted. Collectively, these data indicate that although fish oil offered vascular protection from ozone exposure, it increased pulmonary injury/inflammation and impaired lipid transport mechanisms resulting in foamy macrophage accumulation, demonstrating the need to be cognizant of potential off-target pulmonary effects that might offset the overall benefit of this vasoprotective supplement. PMID- 29329428 TI - Perceived environmental barriers to physical activity in young adults in Dhaka City, Bangladesh-does gender matter? AB - Background: Physical activity (PA) has demonstrated health benefits, but participation is low in many countries. Little is known about environmental barriers to PA among young Asian adults. The purpose of this study was to identify common perceived environmental barriers to PA in young adults in Dhaka, Bangladesh and to examine if these barriers differed by gender. Methods: This was a cross-sectional study with a self-administered survey and data collected from a convenience sample of 573 students aged 20.71+/-1.35 years (female 45%) in Dhaka. Binary logistic regression analysis was used to examine the association between environmental barriers and gender, adjusting for potential confounders. Results: Poor street lighting at night (62%) and a lack of convenient places to do PA (56%) were the most frequently reported environmental barriers to PA. Females were more likely than males to identify a lack of neighbourhood safety (OR 4.65 [95% CI 3.09-7.00]), poor street lighting (OR 2.82 [95% CI 1.95-4.11]), lack of convenient places (OR 2.04 [95% CI 1.39-3.00]), unclean and untidy neighbourhood (OR 1.84 [95% CI 1.25-2.72]) and poor weather (OR 1.61 [95% CI 1.11-2.33]) as barriers to PA, after adjusting for a set of confounders. Conclusions: Findings suggest that environmental barriers to PA are particularly salient to young females in urban Bangladesh. This study underscores the need for safe and convenient options for PA that are also female friendly. PMID- 29329429 TI - How to convene an international health or development commission: ten key steps. AB - The Commission on Investing in Health (CIH), an international group of 25 economists and global health experts, published its Global Health 2035 report in The Lancet in December 2013. The report laid out an ambitious investment framework for achieving a "grand convergence" in health-a universal reduction in deaths from infectious diseases and maternal and child health conditions-within a generation. This article captures ten key elements that the CIH found important to its process and successful outcomes. The elements are presented in chronological order, from inception to post-publication activities. The starting point is to identify the gap that a new commission could help to narrow. A critical early step is to choose a chair who can help to set the agenda, motivate the commissioners, frame the commission's analytic work, and run the commission meetings in an effective way. In selecting commissioners, important considerations are their technical expertise, ensuring diversity of people and viewpoints, and the connections that commissioners have with the intended policy audience. Financial and human resources need to be secured, typically from universities, foundations, and development agencies. It is important to set a clear end date, so that the commission's work program, the timing of its meetings and its interim deadlines can be established. In-person meetings are usually a more effective mechanism than conference calls for gaining commissioners' inputs, surfacing important debates, and 'reality testing' the commission's key findings and messages. To have policy impact, the commission report should ideally say something new and unexpected and should have simple messages. Generating new empirical data and including forward-looking recommendations can also help galvanize policy action. Finally, the lifespan of a commission can be extended if it lays the foundation for a research agenda that is then taken up after the commission report is published. PMID- 29329431 TI - A Validated Method for the Screening of 320 Forensically Significant Compounds in Blood by LC/QTOF, with Simultaneous Quantification of Selected Compounds. AB - A broad drug screening method for toxicologically significant drugs and metabolites in whole blood using liquid chromatography time-of-flight mass spectrometry (LC/QTOF) was developed and comprehensively validated. The method qualitatively screens for 320 compounds while simultaneously quantifying 39. Compounds were extracted from the blood using alkaline liquid/liquid extraction and chromatographic separation was achieved in 12 min. The QTOF was operated using positive mode electrospray ionization using data dependent acquisition. Qualitative validation was performed for all 320 compounds, and included selectivity, recovery, limit of detection, matrix effects, carryover and extract stability. The limits of detection were in the low to sub ng/mL range for the majority of compounds. Full quantitative validation was performed for 39 compounds and accuracy and precision were within 15 and 18%, respectively. The qualitative data processing method uses an in-house retention time, accurate mass and MSMS spectral database, which can be easily updated with new compounds of interest as they emerge onto the market, without affecting method performance. The use of a non-targeted data acquisition method coupled with targeted data processing has proven to be a highly versatile, efficient and robust approach to screening, well suited to meet the needs of the modern toxicology laboratory involved in systematic toxicological analysis. PMID- 29329432 TI - Cardiac surgical strategy for extremely low-birthweight infants with pulmonary overcirculation. AB - OBJECTIVES: This study aimed to review the clinical outcomes of staged cardiac surgery in extremely low-birthweight infants with congenital heart disease and pulmonary overcirculation. METHODS: Six extremely low-birthweight infants with congenital heart disease and pulmonary overcirculation underwent staged cardiac surgery between 2005 and 2017. The median birthweight was 895 g (range 620-990 g), and the median gestational age was 28 weeks (range 23-31 weeks). Clinical outcomes were evaluated, and we focused on pulmonary haemodynamics. RESULTS: Pulmonary artery banding or bilateral pulmonary artery banding was performed as the initial palliation at a median age of 23 days with a median body weight of 880 g. Corrective surgery was performed at a median age of 187 days with a median body weight of 3.9 kg. All of the patients successfully underwent corrective surgery and survived to date. Pulmonary hypertension regressed after corrective surgery in all of the patients, except for 1 patient with severe bronchopulmonary dysplasia. CONCLUSIONS: Acceptable outcomes can be obtained by staged cardiac surgery in extremely low-birthweight infants with congenital heart disease and pulmonary overcirculation. While early pulmonary artery banding can lead to regression of pulmonary hypertension after corrective surgery, close follow-up is required. PMID- 29329430 TI - Increases in IGF-1 After Anti-TNF-alpha Therapy Are Associated With Bone and Muscle Accrual in Pediatric Crohn Disease. AB - Context: Low levels of insulinlike growth factor 1 (IGF-1) in pediatric and adolescent Crohn disease (CD) likely contribute to bone and muscle deficits. Objective: Assess changes in IGF-1 levels and associations with bone and muscle accrual following initiation of anti-tumor necrosis factor alpha (TNF-alpha) therapy in pediatric and adolescent CD. Design and Participants: Participants (n = 75, age 5 to 21 years) with CD were enrolled in a prospective cohort study; 63 completed the 12-month visit. Main Outcome Measures: IGF-1 levels at baseline and 10 weeks, as well as dual-energy x-ray absorptiometry (DXA) and tibia peripheral quantitative computed tomography (pQCT) measures of bone and muscle at baseline and 12 months after initiation of anti-TNF-alpha therapy. Outcomes were expressed as sex-specific z scores. Results: IGF-1 z scores increased from a median (interquartile range) of -1.0 (-1.58 to -0.17) to -0.36 (-1.04 to 0.36) over 10 weeks (P < 0.001). Lesser disease severity and systemic inflammation, as well as greater estradiol z scores (in girls), was significantly associated with greater IGF-1 z scores over time. DXA whole-body bone mineral content, leg lean mass, and total hip and femoral neck bone mineral density (BMD) z scores were low at baseline (P < 0.0001 vs reference data) and increased significantly (P < 0.001) over 12 months. Greater increases in IGF-1 z scores over 10 weeks predicted improvement in DXA bone and muscle outcomes and pQCT trabecular BMD and cortical area. Adjustment for changes in muscle mass markedly attenuated the associations between IGF-1 levels and bone outcomes. Conclusions: Short-term improvements in IGF-1 z scores predicted recovery of bone and muscle outcomes following initiation of anti-TNF-alpha therapy in pediatric CD. These data suggest that disease effects on growth hormone metabolism contribute to musculoskeletal deficits in CD. PMID- 29329433 TI - RAGE mediates Abeta accumulation in a mouse model of Alzheimer's disease via modulation of beta- and gamma-secretase activity. AB - Receptor for Advanced Glycation End products (RAGE) has been implicated in amyloid beta-peptide (Abeta)-induced perturbation relevant to the pathogenesis of Alzheimer's disease (AD). However, whether and how RAGE regulates Abeta metabolism remains largely unknown. Abeta formation arises from aberrant cleavage of amyloid pre-cursor protein (APP) by beta- and gamma-secretase. To investigate whether RAGE modulates beta- and gamma-secretase activity potentiating Abeta formation, we generated mAPP mice with genetic deletion of RAGE (mAPP/RO). These mice displayed reduced cerebral amyloid pathology, inhibited aberrant APP-Abeta metabolism by reducing beta- and gamma-secretases activity, and attenuated impairment of learning and memory compared with mAPP mice. Similarly, RAGE signal transduction deficient mAPP mice (mAPP/DN-RAGE) exhibited the reduction in Abeta40 and Abeta42 production and decreased beta-and gamma-secretase activity compared with mAPP mice. Furthermore, RAGE-deficient mAPP brain revealed suppression of activation of p38 MAP kinase and glycogen synthase kinase 3beta (GSK3beta). Finally, RAGE siRNA-mediated gene silencing or DN-RAGE-mediated signaling deficiency in the enriched human APP neuronal cells demonstrated suppression of activation of GSK3beta, accompanied with reduction in Abeta levels and decrease in beta- and gamma-secretases activity. Our findings highlight that RAGE-dependent signaling pathway regulates beta- and gamma-secretase cleavage of APP to generate Abeta, at least in part through activation of GSK3beta and p38 MAP kinase. RAGE is a potential therapeutic target to limit aberrant APP-Abeta metabolism in halting progression of AD. PMID- 29329434 TI - Effect of mechanical stress on magnetic resonance imaging of the sacroiliac joints: assessment of military recruits by magnetic resonance imaging study. PMID- 29329435 TI - Expanding a radiology lexicon using contextual patterns in radiology reports. AB - Objective: Distributional semantics algorithms, which learn vector space representations of words and phrases from large corpora, identify related terms based on contextual usage patterns. We hypothesize that distributional semantics can speed up lexicon expansion in a clinical domain, radiology, by unearthing synonyms from the corpus. Materials and Methods: We apply word2vec, a distributional semantics software package, to the text of radiology notes to identify synonyms for RadLex, a structured lexicon of radiology terms. We stratify performance by term category, term frequency, number of tokens in the term, vector magnitude, and the context window used in vector building. Results: Ranking candidates based on distributional similarity to a target term results in high curation efficiency: on a ranked list of 775 249 terms, >50% of synonyms occurred within the first 25 terms. Synonyms are easier to find if the target term is a phrase rather than a single word, if it occurs at least 100* in the corpus, and if its vector magnitude is between 4 and 5. Some RadLex categories, such as anatomical substances, are easier to identify synonyms for than others. Discussion: The unstructured text of clinical notes contains a wealth of information about human diseases and treatment patterns. However, searching and retrieving information from clinical notes often suffer due to variations in how similar concepts are described in the text. Biomedical lexicons address this challenge, but are expensive to produce and maintain. Distributional semantics algorithms can assist lexicon curation, saving researchers time and money. PMID- 29329436 TI - Development of the place-based Adelante social marketing campaign for prevention of substance use, sexual risk and violence among Latino immigrant youth. AB - Immigrant Latino youth represent a high-risk subgroup that should be targeted with health promotion efforts. However, there are considerable barriers to engagement in health-related programming. Little is known about the engagement possibilities of social marketing campaigns and digital strategies for traditionally 'hard-to-reach' immigrants, underscoring the importance of testing these techniques with immigrant Latino adolescents. We developed and piloted a place-based social marketing campaign in coordination with the branded, Positive Youth Development-based (PYD) Adelante intervention targeting risk factors for co occurring youth substance abuse, sexual risk and violence. Building on prior research, we conducted a four-phase formative research process, and planned the Adelante social marketing campaign based on findings from one group interview and ongoing consultation with Adelante staff (n=8) and four focus groups with youth (n=35). Participants identified four overarching campaign themes, and suggested portrayal of resilient, proud youth who achieved goals despite adversity. Youth guided selection of campaign features and engagement strategies, including message/visual content, stylistic elements, and a mixed language approach. We developed a 12-month campaign to be delivered via print ads, multi-platform social media promotion, contests, youth-generated videos, blog posts, and text messaging. We describe the process and outcome of campaign development and make recommendations for future campaigns. PMID- 29329437 TI - Association of extracellular dNTP utilization with a GmPAP1-like protein identified in cell wall proteomic analysis of soybean roots. AB - Plant root cell walls are dynamic systems that serve as the first plant compartment responsive to soil conditions, such as phosphorus (P) deficiency. To date, evidence for the regulation of root cell wall proteins (CWPs) by P deficiency remains sparse. In order to gain a better understanding of the roles played by CWPs in the roots of soybean (Glycine max) in adaptation to P deficiency, we conducted an iTRAQ (isobaric tag for relative and absolute quantitation) proteomic analysis. A total of 53 CWPs with differential accumulation in response to P deficiency were identified. Subsequent qRT-PCR analysis correlated the accumulation of 21 of the 27 up-regulated proteins, and eight of the 26 down-regulated proteins with corresponding gene expression patterns in response to P deficiency. One up-regulated CWP, purple acid phosphatase 1-like (GmPAP1-like), was functionally characterized. Phaseolus vulgaris transgenic hairy roots overexpressing GmPAP1-like displayed an increase in root-associated acid phosphatase activity. In addition, relative growth and P content were significantly enhanced in GmPAP1-like overexpressing lines compared to control lines when deoxy-ribonucleotide triphosphate (dNTP) was applied as the sole external P source. Taken together, the results suggest that the modulation of CWPs may regulate complex changes in the root system in response to P deficiency, and that the cell wall-localized GmPAP1-like protein is involved in extracellular dNTP utilization in soybean. PMID- 29329438 TI - Patient perspectives on how physicians communicate diagnostic uncertainty: An experimental vignette study. AB - Objective: We evaluated the effects of three different strategies for communicating diagnostic uncertainty on patient perceptions of physician competence and visit satisfaction. Design/Setting: Experimental vignette-based study design involving pediatric cases presented to a convenience sample of parents living in a large US city. Participants/Intervention(s): Three vignettes were developed, each describing one of three different ways physicians communicated diagnostic uncertainty to parents-(i) explicit expression of uncertainty ('not sure' about diagnosis), (ii) implicit expression of uncertainty using broad differential diagnoses and (iii) implicit expression of uncertainty using 'most likely' diagnoses. Participants were randomly assigned to one of the three vignettes and then answered a 37-item web-based questionnaire. Main Outcome Measure(s): Outcome variables included parent-perceived technical competence of physician, trust and confidence, visit satisfaction and adherence to physician instructions. Differences between the three groups were compared using analysis of variance, followed by individual post hoc analyses with Bonferroni correction. Results: Seventy-one participants completed the vignette questions. Demographic characteristics and scores on activation (parent activation measure [PAM]) and intolerance to uncertainty were similar across the three groups. Explicit expression of uncertainty was associated with lower perceived technical competence, less trust and confidence, and lower patient adherence as compared to the two groups with implicit communication. These latter two groups had comparable outcomes. Conclusion: Parents may react less negatively in terms of perceived competence, physician confidence and trust, and intention to adhere when diagnostic uncertainty is communicated using implicit strategies, such as using broad differential diagnoses or most likely diagnoses. Evidence-based strategies to communicate diagnostic uncertainty to patients need further development. PMID- 29329440 TI - Executive Function and Internalizing Symptoms in Adolescents and Young Adults With Congenital Heart Disease: The Role of Coping. AB - Objective: Executive functioning deficits have been documented among congenital heart disease (CHD) survivors and may contribute to emotional distress. Little research has investigated the role of coping in this association. This study examined the role of coping in accounting for the association between self reported executive function problems and internalizing symptoms among adolescents and emerging adults (AEAs), as well as young adults (YAs) with CHD. Methods: Participants included 74 AEA (Mage = 19.32 +/- 3.47 years, range 15-25 years) and 98 YA CHD survivors (Mage = 32.00 +/- 3.69 years, range 26-39 years), recruited from pediatric and adult outpatient cardiology clinics. Participants completed self-report measures of executive function problems, coping (primary control, secondary control, and disengagement coping), and internalizing symptoms. Lesion severity classification and functional impairment due to symptoms of heart failure were determined from medical chart review. Results: Significant problems in executive function were reported by 5% of AEA and 13% of YA. Coping was not associated with executive function problems or internalizing symptoms for AEA. However, among YA, less use of adaptive coping strategies and more maladaptive coping responses was associated with both more executive function problems and internalizing symptoms. An indirect effect of executive function problems on internalizing symptoms via secondary control coping emerged for YA. Conclusions: Executive function problems may disrupt the ability to use important adaptive coping skills, such as cognitive reappraisal, positive thinking, and acceptance, thereby resulting in greater emotional distress among YA CHD survivors. PMID- 29329441 TI - Aging and the Social Ecology of Everyday Interpersonal Perception: What is Perceived, in Whom, and Where? AB - Objectives: Despite a proliferation of research in interpersonal perception and aging, no research has identified the nature of the social and emotional perceptions made by aging individuals in everyday life. In this study, we aimed to identify the social ecological features that characterize everyday interpersonal perception across the adult lifespan. Method: Three studies were conducted. Study 1 identified and compared the targets and locations of young, middle-age, and older adults' everyday interpersonal perceptions; these perceptions were categorized into types in Study 2. Study 3 applied these categorizations to identify and compare the social ecology surrounding aging individuals' interpersonal perceptions. Results: Everyday interpersonal perceptions were directed toward familiar others and occurred in familiar locations, although the specific familiar targets and locations sometimes varied significantly with age. However, the types of perceptions made in everyday life did not vary significantly between age groups. Discussion: Aging individuals make similar types of interpersonal judgments, but the targets and locations of these judgments may change with age. Future studies on interpersonal perception and aging will need to account for these features of the aging individual's social ecology to provide an accurate assessment of the aging process. PMID- 29329439 TI - Conserved Proteins of the RNA Interference System in the Arbuscular Mycorrhizal Fungus Rhizoglomus irregulare Provide New Insight into the Evolutionary History of Glomeromycota. AB - Horizontal gene transfer (HGT) is an important mechanism in the evolution of many living organisms particularly in Prokaryotes where genes are frequently dispersed between taxa. Although, HGT has been reported in Eukaryotes, its accumulative effect and its frequency has been questioned. Arbuscular mycorrhizal fungi (AMF) are an early diverged fungal lineage belonging to phylum Glomeromycota, whose phylogenetic position is still under debate. The history of AMF and land plant symbiosis dates back to at least 460 Ma. However, Glomeromycota are estimated to have emerged much earlier than land plants. In this study, we surveyed genomic and transcriptomic data of the model arbuscular mycorrhizal fungus Rhizoglomus irregulare (synonym Rhizophagus irregularis) and its relatives to search for evidence of HGT that occurred during AMF evolution. Surprisingly, we found a signature of putative HGT of class I ribonuclease III protein-coding genes that occurred from autotrophic cyanobacteria genomes to R. irregulare. At least one of two HGTs was conserved among AMF species with high levels of sequence similarity. Previously, an example of intimate symbiosis between AM fungus and cyanobacteria was reported in the literature. Ribonuclease III family enzymes are important in small RNA regulation in Fungi together with two additional core proteins (Argonaute/piwi and RdRP). The eukaryotic RNA interference system found in AMF was conserved and showed homology with high sequence similarity in Mucoromycotina, a group of fungi closely related to Glomeromycota. Prior to this analysis, class I ribonuclease III has not been identified in any eukaryotes. Our results indicate that a unique acquisition of class I ribonuclease III in AMF is due to a HGT event that occurred from cyanobacteria to Glomeromycota, at the latest before the divergence of the two Glomeromycota orders Diversisporales and Glomerales. PMID- 29329442 TI - Conventional Radiofrequency Thermocoagulation vs Pulsed Radiofrequency Neuromodulation of Ganglion Impar in Chronic Perineal Pain of Nononcological Origin. AB - Background: Chronic nononcological perineal pain has been effectively managed by ganglion Impar block. Chemical neurolysis, cryoablation, and radiofrequency ablation have been the accepted methods of blockade. Recently, pulsed radiofrequency, a novel variant of conventional radiofrequency, has been used for this purpose. Study Design: This was a prospective, randomized, double-blind study. Setting: Two different interventional pain management centers in India. Objective: To compare the efficacy of conventional radiofrequency and pulsed radiofrequency for gangliom Impar block. Methods: The patients were randomly allocated to one of two groups. In the conventional radiofrequency (CRF) group (N = 34), conventional radiofrequency ablation was done, and in the PRF pulsed radiofrequency (PRF) group (N = 31), pulsed radiofrequency ablation was done. After informed and written consent, fluoroscopy-guided ganglion Impar block was performed through the first intracoccygeal approach. The extent of pain relief was assessed by visual analog scale (VAS) at 24 hours, and at the first, third, and sixth weeks following the intervention. A questionnaire to evaluate subjective patient satisfaction was also used at each follow-up visit. Results: In the CRF group, the mean VAS score decreased significantly from the baseline value at each follow-up visit. But in the PRF group, this decrease was insignificant except at 24-hour follow-up. Intergroup comparison also showed significantly better pain relief in the CRF group as compared with the PRF group. At the end of follow-up, 28 patients (82%) in the CRF group and four patients (13%) in the PRF group had excellent results, as assessed by the subjective patient satisfaction questionnaire. There was no complication in any patient of either study group, except for short-lived infection at the site of skin puncture in a few. Conclusion: Ganglion Impar block by conventional radiofrequency provided a significantly better quality of pain relief with no major side effects in patients with chronic nononcological perineal pain as compared with pulsed radiofrequency. Limitations: The short-term follow-up period of only six weeks was a major drawback associated with this study. PMID- 29329444 TI - Prevention of IVR: a need for investigation. AB - Intravesical recurrence (IVR) after RNU for UTUC is a frequent event, occurring in 20-50% of patients, mostly in the first postoperative year. Several retrospective studies have shown that predictors of IVR include clinical characteristics, surgical features and as well pathological characteristics (previous history of bladder cancer, pathological stage, lymph node involvement, cis, endoscopic distal ureter, etc.) management. Two prospective studies provide level I evidence for the safety and efficacy of intravesical single postoperative chemotherapy for patients treated with radical nephroureterectomy (RNU) for UTUC in order to prevent IVR. However, some questions remain unanswered. Yamashita et al. in the current issue of the journal have shown that early ureteral ligation during RNU decreases the risk of IVR in patients with pelvycalyceal upper tract urothelial carcinoma. This study despite its limitations represent a step towards improved outcomes for our patients with UTUC, the relatively low morbidity of the procedure added to the potential benefit associated with this early ligation make it an easy implementation in daily practice. PMID- 29329445 TI - Author's reply to 'Prevention of IVR: a need for investigation'. PMID- 29329443 TI - Bone formation in ankylosing spondylitis during anti-tumour necrosis factor therapy imaged by 18F-fluoride positron emission tomography. AB - Objectives: Excessive bone formation is an important hallmark of AS. Recently it has been demonstrated that axial bony lesions in AS patients can be visualized using 18F-fluoride PET-CT. The aim of this study was to assess whether 18F fluoride uptake in clinically active AS patients is related to focal bone formation in spine biopsies and is sensitive to change during anti-TNF treatment. Methods: Twelve anti-TNF-naive AS patients [female 7/12; age 39 years (SD 11); BASDAI 5.5 +/- 1.1] were included. 18 F-fluoride PET-CT scans were performed at baseline and in two patients, biopsies were obtained from PET-positive and PET negative spine lesions. The remaining 10 patients underwent a second 18F-fluoride PET-CT scan after 12 weeks of anti-TNF treatment. PET scans were scored visually by two blinded expert readers. In addition, 18F-fluoride uptake was quantified using the standardized uptake value corrected for individual integrated whole blood activity concentration (SUVAUC). Clinical response to anti-TNF was defined according to a ? 20% improvement in Assessment of SpondyloArthritis international Society criteria at 24 weeks. Results: At baseline, all patients showed at least one axial PET-positive lesion. Histological analysis of PET-positive lesions in the spine confirmed local osteoid formation. PET-positive lesions were found in the costovertebral joints (43%), facet joints (23%), bridging syndesmophytes (20%) and non-bridging vertebral lesions (14%) and in SI joints (75%). After 12 weeks of anti-TNF treatment, 18F-fluoride uptake in clinical responders decreased significantly in the costovertebral (mean SUVAUC -1.0; P < 0.001) and SI joints (mean SUVAUC -1.2; P = 0.03) in contrast to non-responders. Conclusions: 18F fluoride PET-CT identified bone formation, confirmed by histology, in the spine and SI joints of AS patients and demonstrated alterations in bone formation during anti-TNF treatment. PMID- 29329446 TI - Standardisation of the in vitro comet assay: influence of lysis time and lysis solution composition on the detection of DNA damage induced by X-rays. AB - The alkaline comet assay, in vivo and in vitro, is currently used in several areas of research and in regulatory genotoxicity testing. Several efforts have been made in order to decrease the inter-experimental and inter-laboratory variability and increase the reliability of the assay. In this regard, lysis conditions are considered as one of the critical variables and need to be further studied. Here, we tested different times of lysis (from no lysis to 1 week) and two different lysis solutions in human lymphoblast (TK6) cells unexposed or exposed to X-rays. Similar % tail DNA values were obtained independently of the time of lysis employed for every X-ray dose tested and both lysis solutions. These results, taken together with our previous ones with methyl methanesulfonate and H2O2, which showed clear lysis-time dependence, support that the influence of the lysis time in the comet assay results depends on the type of lesion being detected; some DNA lesions may spontaneously give rise to apurinic or apyrimidinic (AP) sites during the lysis period, which can be converted into strand breaks detectable with the comet assay. Testing different times of lysis would be useful to increase the sensitivity of the comet assay and to ensure the detection of DNA lesions of an unknown compound, thereby providing some insight into the chemical nature of the lesions induced. However, the same lysis conditions (i.e. lysis time and lysis solution) should be used when comparing results between different experiments or laboratories. PMID- 29329447 TI - Congenital Hyperinsulinism and Hypopituitarism Attributable to a Mutation in FOXA2. AB - Context: Persistent hypoglycemia in the newborn period most commonly occurs as a result of hyperinsulinism. The phenotype of hypoketotic hypoglycemia can also result from pituitary hormone deficiencies, including growth hormone and adrenocorticotropic hormone deficiency. Forkhead box A2 (Foxa2) is a transcription factor shown in mouse models to influence insulin secretion by pancreatic beta cells. In addition, Foxa2 is involved in regulation of pituitary development, and deletions of FOXA2 have been linked to panhypopituitarism. Objective: To describe an infant with congenital hyperinsulinism and hypopituitarism as a result of a mutation in FOXA2 and to determine the functional impact of the identified mutation. Main Outcome Measure: Difference in wild-type (WT) vs mutant Foxa2 transactivation of target genes that are critical for beta cell function (ABCC8, KNCJ11, HADH) and pituitary development (GLI2, NKX2-2, SHH). Results: Transactivation by mutant Foxa2 of all genes studied was substantially decreased compared with WT. Conclusions: We report a mutation in FOXA2 leading to congenital hyperinsulinism and hypopituitarism and provide functional evidence of the molecular mechanism responsible for this phenotype. PMID- 29329449 TI - Lack of Receptor for Advanced Glycation End Products Leads to Less Severe Staphylococcal Skin Infection but More Skin Abscesses and Prolonged Wound Healing. AB - Background: Lack of receptor for advanced glycation end products (RAGE) ameliorates several infections including Staphylococcus aureus pneumonia. We sought to investigate the role of RAGE in staphylococcal skin infection in mice. Methods: Wild-type (WT) and RAGE deficient (RAGE-/-) mice were subcutaneously inoculated with S. aureus SH1000 strain in abscess-forming dose or necrotic dose. Clinical signs of dermatitis, along with histopathological changes, were compared between the groups. Results: The skin lesion size was smaller in RAGE-/- mice. Infected RAGE-/- mice expressed lower proinflammatory cytokines in local skins compared to control mice. Low dose of bacteria caused more abscess formation in RAGE-/- mice compared to skin necrosis that was more often observed in WT mice. As a result of more abscess formation, the wound healing was prolonged in RAGE-/- mice. Importantly, RAGE-/- mice had lower bacterial loads in the skin than controls, which is correlated with higher local levels of myeloperoxidase before skin infection. In vitro, enhanced phagocytic capacity of neutrophils and macrophages obtained from RAGE-/- mice compared to control mice was observed. Conclusions: RAGE deficiency up-regulates phagocytic capacity of phagocytes, resulting in lower bacterial burden in local skin and milder skin lesions in mice with staphylococcal skin infection. PMID- 29329448 TI - The Prevalence and Management of Dehydration amongst Neonatal Admissions to General Paediatric Wards in Kenya-A Clinical Audit. AB - An audit of randomly selected case records of 810 patients admitted to 13 hospitals between December 2015 and November 2016 was done. Prevalence of dehydration was 19.7% (2293 of 11 636) [95% CI: 17.1-22.6%], range across hospitals was 9.4% to 27.0%. Most cases with dehydration were clinically diagnosed (82 of 153; 53.6%), followed by excessive weight loss (54 of 153; 35.3%) and abnormal urea/electrolytes/creatinine (23 of 153; 15.0%). Documentation of fluids prescribed was poor but, where data were available, Ringers lactate (30 of 153; 19.6%) and 10% dextrose (18 of 153; 11.8%) were mostly used. Only 17 of 153 (11.1%) children had bolus fluid prescription, and Ringer's lactate was most commonly used for bolus at a median volume per kilogram body weight of 20 ml/kg (interquartile range, 12-30 ml/kg). Neonatal dehydration is common, but current documentation may underestimate the burden. Heterogeneity in practice likely reflects the absence of guidelines that in turn reflects a lack of research informing practical treatment guidelines. PMID- 29329450 TI - DEVELOPMENT OF HETEROGENEOUS PROPORTIONAL COUNTERS FOR NEUTRON DOSIMETRY. AB - The use of a custom-made cylindrical graphite proportional counter (Cy-GPC) along with a cylindrical tissue equivalent proportional counter (TEPC) for neutron gamma mixed-field dosimetry has been studied in the following steps: first, the consistency of the gamma dose measurement between the Cy-TEPC and the Cy-GPC was investigated over a range of 20 keV (X-ray) to 0.661 MeV (Cs-137 gamma ray). Then, with both the counters used simultaneously, the neutron and gamma ray doses produced by a P385 Neutron Generator (Thermo Fisher Scientific) together with a Cs-137 gamma source were determined. PMID- 29329452 TI - Comment on "Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology Committee". PMID- 29329453 TI - Response to Harreld re: "Response assessment in medulloblastoma and leptomeningeal seeding tumors: recommendations from the Response Assessment in Pediatric Neuro-Oncology Committee". PMID- 29329451 TI - Epidermal Growth Factor Receptor Signaling Disruption by Endocrine and Metabolic Disrupting Chemicals. AB - The purpose of this study is to identify an environmentally relevant shared receptor target for endocrine and metabolism disrupting chemical pollutants. A feature of the tested chemicals was that they induced Cyp2b10 in vivo implicating activation of the constitutive androstane receptor (CAR). Recent studies suggest that these compounds could be indirect CAR activators via epidermal growth factor receptor (EGFR) inhibition. Assays included a CAR activity reporter assay, EGF endocytosis assay, and EGFR phosphorylation assay. Docking simulations were used to identify putative binding sites for environmental chemicals on the EGFR. Whole weight and lipid-adjusted serum mean pollutant exposures were determined using data from the National Health and Examination Survey (NHANES) and compared with the IC50 values determined in vitro. Chlordane, trans-nonachlor, PCB-126, PCB 153, and atrazine were the most potent EGFR inhibitors tested. PCB-126, PCB-153, and trans-nonachlor appeared to be competitive EGFR antagonists as they displaced bound EGF from EGFR. However, atrazine acted through a different mechanism and could be an EGFR tyrosine kinase inhibitor. EGFR inhibition relative effect potencies were determined for these compounds. In NHANES, serum concentrations of trans-nonachlor, PCB-126, and PCB-153 greatly exceeded their calculated IC50 values. A common mechanism of action through EGFR inhibition for three diverse classes of metabolic disrupting chemicals was characterized by measuring inhibition of EGFR phosphorylation and EGF-EGFR endocytosis. Based on NHANES data, EGFR inhibition may be an environmentally relevant mode of action for some PCBs, pesticides, and herbicides. PMID- 29329454 TI - A change at the helm of Neuro-Oncology. PMID- 29329455 TI - Serologic Evidence of Ebolavirus Infection in a Population With No History of Outbreaks in the Democratic Republic of the Congo. AB - Background: Previous studies suggest that cases of Ebola virus disease (EVD) may go unreported because they are asymptomatic or unrecognized, but evidence is limited by study designs and sample size. Methods: A large population-based survey was conducted (n = 3415) to assess animal exposures and behaviors associated with Ebolavirus antibody prevalence in rural Kasai Oriental province of the Democratic Republic of Congo (DRC). Fourteen villages were randomly selected and all healthy individuals >=1 year of age were eligible. Results: Overall, 11% of subjects tested positive for Zaire Ebolavirus (EBOV) immunoglobulin G antibodies. Odds of seropositivity were higher for study participants older than 15 years of age and for males. Those residing in Kole (closer to the outbreak site) tested positive at a rate 1.6* higher than Lomela, with seropositivity peaking at a site located between Kole and Lomela. Multivariate analyses of behaviors and animal exposures showed that visits to the forest or hunting and exposure to rodents or duikers predicted a higher likelihood of EBOV seropositivity. Conclusions: These results provide serologic evidence of Ebolavirus exposure in a population residing in non-EBOV outbreak locations in the DRC and define statistically significant activities and animal exposures that associate with EBOV seropositivity. PMID- 29329456 TI - Designing and evaluating an automated system for real-time medication administration error detection in a neonatal intensive care unit. AB - Background: Timely identification of medication administration errors (MAEs) promises great benefits for mitigating medication errors and associated harm. Despite previous efforts utilizing computerized methods to monitor medication errors, sustaining effective and accurate detection of MAEs remains challenging. In this study, we developed a real-time MAE detection system and evaluated its performance prior to system integration into institutional workflows. Methods: Our prospective observational study included automated MAE detection of 10 high risk medications and fluids for patients admitted to the neonatal intensive care unit at Cincinnati Children's Hospital Medical Center during a 4-month period. The automated system extracted real-time medication use information from the institutional electronic health records and identified MAEs using logic-based rules and natural language processing techniques. The MAE summary was delivered via a real-time messaging platform to promote reduction of patient exposure to potential harm. System performance was validated using a physician-generated gold standard of MAE events, and results were compared with those of current practice (incident reporting and trigger tools). Results: Physicians identified 116 MAEs from 10 104 medication administrations during the study period. Compared to current practice, the sensitivity with automated MAE detection was improved significantly from 4.3% to 85.3% (P = .009), with a positive predictive value of 78.0%. Furthermore, the system showed potential to reduce patient exposure to harm, from 256 min to 35 min (P < .001). Conclusions: The automated system demonstrated improved capacity for identifying MAEs while guarding against alert fatigue. It also showed promise for reducing patient exposure to potential harm following MAE events. PMID- 29329457 TI - A novel application of RNase H2-dependent quantitative PCR for detection and quantification of Grosmannia clavigera, a mountain pine beetle fungal symbiont, in environmental samples. AB - Mountain pine beetle (Dendroctonus ponderosae Hopkins; MPB) is an economically and ecologically important pest of pine species in western North America. Mountain pine beetles form complex multipartite relationships with microbial partners, including the ophiostomoid fungi Grosmannia clavigera (Robinson-Jeffrey and Davidson) Zipfel, de Beer and Wingfield, Ophiostoma montium (Rumbold) von Arx, Grosmannia aurea (Robinson-Jeffrey and Davidson) Zipfel, de Beer and Wingfield, Leptographium longiclavatum (Lee, Kim, and Breuil) and Leptographium terebrantis (Barras and Perry). These fungi are vectored by MPB to new pine hosts, where the fungi overcome host defenses to grow into the sapwood. A tree's relative susceptibility to these fungi is conventionally assessed by measuring lesions that develop in response to fungal inoculation. However, these lesions represent a symptom of infection, representing both fungal growth and tree defense capacity. In order to more objectively assess fungal virulence and host tree susceptibility in studies of host-pathogen interactions, a reliable, consistent, sensitive method is required to accurately identify and quantify MPB associated fungal symbionts in planta. We have adapted RNase H2-dependent PCR, a technique originally designed for rare allele discrimination, to develop a novel RNase H2-dependent quantitative PCR (rh-qPCR) assay that shows greater specificity and sensitivity than previously published PCR-based methods to quantify MPB fungal symbionts in pine xylem and MPB whole beetles. Two sets of assay probes were designed: one that amplifies a broad range of ophiostomoid species, and a second that amplifies G. clavigera but not other MPB-associated ophiostomoid species. Using these primers to quantify G. clavigera in pine stems, we provide evidence that lesion length does not accurately reflect the extent of fungal colonization along the stem nor the quantity of fungal growth within this colonized portion of stem. The sensitivity, specificity, reproducibility, cost effectiveness and high-throughput potential of the rh-qPCR assay makes the technology suitable for identification and quantification of a wide array of pathogenic and beneficial microbes that form associations with plants and other organisms, even when the microbial partner is present in low abundance. PMID- 29329459 TI - Using Pool-seq to Search for Genomic Regions Affected by Hybrid Inviability in the copepod T. californicus. AB - The formation of reproductive barriers between allopatric populations involves the accumulation of incompatibilities that lead to intrinsic postzygotic isolation. The evolution of these incompatibilities is usually explained by the Dobzhansky-Muller model, where epistatic interactions that arise within the diverging populations, lead to deleterious interactions when they come together in a hybrid genome. These incompatibilities can lead to hybrid inviability, killing individuals with certain genotypic combinations, and causing the population's allele frequency to deviate from Mendelian expectations. Traditionally, hybrid inviability loci have been detected by genotyping individuals at different loci across the genome. However, this method becomes time consuming and expensive as the number of markers or individuals increases. Here, we test if a Pool-seq method can be used to scan the genome of F2 hybrids to detect genomic regions that are affected by hybrid inviability. We survey the genome of hybrids between 2 populations of the copepod Tigriopus californicus, and show that this method has enough power to detect even small changes in allele frequency caused by hybrid inviability. We show that allele frequency estimates in Pool-seq can be affected by the sampling of alleles from the pool of DNA during the library preparation and sequencing steps and that special considerations must be taken when aligning hybrid reads to a reference when the populations/species are divergent. PMID- 29329458 TI - Three Fatty Acyl-Coenzyme A Reductases, BdFAR1, BdFAR2 and BdFAR3, are Involved in Cuticular Wax Primary Alcohol Biosynthesis in Brachypodium distachyon. AB - Plant cuticular wax is a heterogeneous mixture of very long chain fatty acids (VLCFAs) and their derivatives. Primary alcohols are the dominant wax components throughout leaf development of Brachypodium distachyon (Brachypodium). However, the genes involved in primary alcohol biosynthesis have not been investigated and their exact biological function remains unclear in Brachypodium to date. Here, we monitored the leaf wax profile and crystal morphology during Brachypodium leaf morphogenesis, and isolated three Brachypodium fatty acyl-CoA reductase (FAR) genes, named BdFAR1, BdFAR2 and BdFAR3, then analyzed their biochemical activities, substrate specificities, expression patterns, subcellular localization and stress induction. Transgenic expression of BdFAR genes in yeast (Saccharomyces cerevisiae), tomato (Solanum lycopersicum), Arabidopsis (Arabidopsis thaliana) and Brachypodium increased the production of primary alcohols. The three BdFAR genes were preferentially expressed in Brachypodium aerial tissues, consistent with known sites of wax primary alcohol deposition, and localized in the endoplasmic reticulum (ER) in Arabidopsis protoplasts. Finally, expression of the BdFAR genes was induced by drought, cold and ABA treatments, and drought stress significantly increased cuticular wax accumulation in Brachypodium. Taken together, these results indicate that the three BdFAR genes encode active FARs involved in the biosynthesis of Brachypodium wax primary alcohols and respond to abiotic stresses. PMID- 29329460 TI - Survey of Parasitic Bacteria in Bat Bugs, Colorado. AB - Bat bugs (Cimex adjunctus Barber) (Hemiptera: Cimicidae) collected from big brown bats (Eptesicus fuscus Palisot de Beauvoir) in Colorado, United States were assessed for the presence of Bartonella, Brucella, and Yersinia spp. using molecular techniques. No evidence of Brucella or Yersinia infection was found in the 55 specimens collected; however, 4/55 (7.3%) of the specimens were positive for Bartonella DNA. Multi-locus characterization of Bartonella DNA shows that sequences in bat bugs are phylogenetically related to other Bartonella isolates and sequences from European bats. PMID- 29329461 TI - High heritability of adolescent sleep-wake behavior on free, but not school days: a long-term twin study. AB - Adolescence development is characterized by significant changes in sleep biology. Despite an overall decline in sleep duration and a delay in bedtime, significant interindividual variation in sleep has been reported. The aim of the current study was to examine genetic and environmental influences on sleep in adolescence using long-term (6 month) actigraphy measurements, differentiating between school and free days. Sixteen monozygotic (n = 32) and 10 dizygotic (n = 20) twin pairs (mean age 12.8 +/- 1.0 years; 25 females) participated in the study. Structural equation modeling was used to compute genetic, shared environmental and unique environmental contributors to sleep behavior. We found significantly more genetic influence on sleep timing (sleep midpoint; school: 14%, free: 90%) and duration (school: 15%; free: 68%) on free compared with school days. On the other hand, the genetic influence on measures of sleep quality (sleep efficiency and sleep onset latency) was high (>60%) and less dependent on the day of measurement. Only wake after sleep onset (WASO) exhibited a strong shared environmental influence (> 52%) on both school and free days, suggesting that behavioral/environmental interventions may help reduce WASO. In addition, self-reported chronotype was also highly genetically influenced (75%). Disrupted, ill-timed, and insufficient sleep in adolescence is associated with poor mental and physical health outcomes. Our findings of a strong genetic contribution to sleep in adolescence suggest that sleep may mark a genetic vulnerability to poor outcomes. PMID- 29329462 TI - Silibinin from Silybum marianum Stimulates Embryonic Stem Cell Vascular Differentiation via the STAT3/PI3-K/AKT Axis and Nitric Oxide. AB - Silibinin, the bioactive compound of milk thistle (Silybum marianum), exerts tissue protective and regenerative effects that may include stem cell differentiation toward vascular cells. The purpose of the present study was to investigate whether silibinin stimulates blood vessel formation from mouse embryonic stem (ES) cells and to unravel the underlying signaling cascade. Vascular branching points were assessed by confocal laser scanning microscopy and computer-assisted image analysis of CD31-positive cell structures. Protein expression of vascular markers and activation of protein kinases were determined by western blot. Nitric oxide (NO) generation was investigated by use of the fluorescent dye 4-amino-5-methylamino-2',7'-difluorofluorescein diacetate. Silibinin dose-dependently increased CD31-positive vascular branching points in embryoid bodies cultivated from ES cells. This was paralleled by increase of protein expression levels for the endothelial-specific markers vascular endothelial cadherin (VE-cadherin), vascular endothelial growth factor receptor 2, and hypoxia-inducible factor-1alpha. Moreover, silibinin increased activation of endothelial nitric oxide synthase (eNOS), which boosted generation of NO in embryoid bodies and enhanced phosphorylation of signal transducer and activator of transcription 3 (STAT3) as well as phosphoinositide 3-kinase (PI3-K) and AKT. Vasculogenesis, VE-cadherin expression, STAT3 and AKT phosphorylation, NO generation, and eNOS phosphorylation were inhibited by the small molecule STAT3 inhibitor Stattic, AKT inhibitor VIII, the PI3-K inhibitor LY294002, or the NOS inhibitor Nomega-Nitro-L-arginine methyl ester hydrochloride. In conclusion, our findings indicate that silibinin induces vasculogenesis of ES cells via activation of STAT3, PI3-K, and AKT, which regulate NO generation by eNOS. PMID- 29329464 TI - [The Use of Social Networks and Physical Activity Patterns of Adolescents in Obesity Therapy - A Sociodemographic Stratified Analysis]. AB - The improvement of existing obesity treatment for children and adolescents requires knowledge about social and personal conditions, individual needs, and life style. From particular importance are information about physical activity and media use, in order to target and adjust content and methods of therapy interventions. In 2013, 510 adolescents aged 11 to 17 years participated in a survey on above named factors. Physical activities were conducted with friends (64%) and in sport clubs (43%). Girls (OR 0.55) and children of unemployed parents (OR 0.28) had reduced chances to participate in sports clubs. Through social media social networks, primarily Facebook, were widely used. The use of the network functions differed among socio-demographic groups. Participants who completed obesity treatments expressed their desire to share their experience with other treatment participants (79%) and with the therapy team (37%). The results indicate the need for individualised treatment approaches. PMID- 29329463 TI - Ginsenoside Rh1: A Systematic Review of Its Pharmacological Properties. AB - Ginsenoside Rh1 is one of major bioactive compounds extracted from red ginseng, which has been increasingly used for enhancing cognition and physical health worldwide. The objective of this study was to review the pharmacological effects of ginsenoside Rh1 in a systematic manner. We performed searches on eight electronic databases including MEDLINE (Pubmed), Scopus, Google Scholar, POPLINE, Global Health Library, Virtual Health Library, the System for Information on Grey Literature in Europe, and the New York Academy of Medicine Grey Literature Report to select the original research publications reporting the biological and pharmacological effects of ginsenoside Rh1 from in vitro and in vivo studies regardless of publication language and study design. Upon applying the inclusion and exclusion criteria, we included a total of 57 studies for our systemic review. Ginsenoside Rh1 exhibited the potent characteristics of anti inflammatory, antioxidant, immunomodulatory effects, and positive effects on the nervous system. The cytotoxic effects of ginsenoside Rh1 were dependent on different types of cell lines. Other pharmacological effects including estrogenic, enzymatic, anti-microorganism activities, and cardiovascular effects have been mentioned, but the results were considerably diverged. A higher quality of evidence on clinical trial studies is highly recommended to confirm the consistent efficacy of ginsenoside Rh1. PMID- 29329466 TI - Association Between Body Weight Change Before and After Delivery and Development of Nonmetabolic Syndrome: A Prospective Study. AB - The aim of the work was to investigate the association between body weight change before and after delivery and development of nonmetabolic syndrome in Chinese females aged >=40 years. We selected 789 participants without metabolic syndrome randomly from a baseline survey performed in Luzhou, China in 2011. We took the group with decreasing or no increasing body mass index difference during a pregnancy as "R-Body Mass Index 1" (n=286) and divided the group with increasing body mass index difference during a pregnancy into "R-Body Mass Index 2" (n=254) and "R-Body Mass Index 3" (n=249) based upon P50. All study participants were followed up every year, and a questionnaire, physical examination, and biochemical detection were administered after 3 years. Of 789 participants, 82 nonmetabolic syndrome women developed metabolic syndrome during 3-year follow-up. The morbidity of metabolic syndrome in the R-BMI1, R-BMI2, and R-BMI3 groups was 5.2%, 11.8%, and 14.9%, respectively. Compared to the R-BMI1 group, the relative risk for R-BMI2 was 1.92 (95% confidence interval: 1.03-3.58, p=0.040) and for R BMI3 was 2.20 (95% confidence interval: 1.20-4.03, p=0.011). After adjusting for age, BMI, WHR, baseline blood glucose, HbA1c, TG, HDL-C, SBP, DBP, age of menarche and menopause, and delivery times, the relative risks were similar to the unadjusted relative risks. In conclusion, body weight change after delivery was associated with metabolic syndrome: the higher the weight gain, the higher the risk of metabolic syndrome. PMID- 29329468 TI - Closure of an Intraoperatively Enlarged Macular Hole by Revision Surgery with Free ILM Flaps. PMID- 29329467 TI - Low Aromatase Activity and Estradiol/Sex Hormone Binding Globulin Ratio are Associated with Total Hip Bone Mineral Density and the Presence of Osteoporosis: A Study in Chinese Postmenopausal Women. AB - Several groups have reported the important role of estradiol (E2) and testosterone (T) in postmenopausal osteoporosis (PMOP). Because aromatase catalyzes the conversion of T to E2, the purpose of this study was to determine the influence of aromatase activity on the bone mineral density (BMD) in postmenopausal women. A total of 344 postmenopausal women were selected for this study. Serum E2, T, sex hormone-binding globulin (SHBG), calcium (Ca), alkaline phosphatase (ALP), C-terminal telopeptide of type I collagen (CTX), and procollagen type I amino-terminal propeptide (PINP) were examined. The E2/T was positively associated with total hip BMD and PINP (p<0.05). When E2/T was divided into quartiles, participants in lower quartiles of E2/T were likely to have higher PINP and lower BMD (p<0.05). The prevalence of osteoporosis significantly increased as E2/T ratio decreased. The receiver operating characteristic (ROC) curves were constructed for serum E2, free E2 index (FEI), and E2/T, to assess their diagnostic accuracy in PMOP. The overall area under the curve (AUC) were 0.83 (95% CI=0.77-0.88) for E2, 0.87 (95% CI=0.82-0.92) for FEI, and 0.89 (95% CI=0.85-0.94), respectively. In conclusion, the study suggests that in postmenopausal women, aromatase activity could be an important determinant of skeletal health. The women with lower aromatase activity may have greater likelihood of PMOP and the E2/T was expected to be a valuable indicator for the prediction of PMOP and to monitor the process of osteoporosis. PMID- 29329469 TI - Pigment Dispersion Syndrome Mimicking Congenital Horner Syndrome. PMID- 29329470 TI - [The Epidemiology of Pressure Ulcer in Germany: Systematic Review]. AB - BACKROUND: Pressure ulcers are considered as indicators of the quality of care. The aim of this study was to provide a systematic review of the incidence and prevalence of pressure ulcers in Germany between 2010 and 2015. METHODS: The databases PubMed, CINAHL, DIMDI, Web of Science, LIVIVO, Google, Google Scholar, as well as the publishers Springer and the Thieme were searched until the end of February 2016. The extracted data were monitored by two reviewers. A risk of bias assessment was conducted. RESULTS: 219 epidemiologic figures were found in 67 studies and documents. Most data were identified for the hospital setting. The majority of figures in long-term care was based on primary research. Considering sources of high methodological quality, prevalence in long-term care varied between 2% and 5% and between 2% to 4% in hospitals (category 2 and above). Routine data collections showed heterogeneous results from the hospital settings with prevalence from 0.07% to 4.37%. No incidence figures and no routine data collections were identified for ambulatory settings. Prevalence varied between 2 and 4% (including category 1). CONCLUSION: Review results indicate that pressure ulcers are frequent within all health care settings in Germany. Disregarding methodological limitations, pressure ulcer prevalence is between 2% and 5% in long-term care patients. Due to the heterogeneity of the available data, generalizable statements are not possible for the hospital settings. Pressure ulcer prevalence is most likely at least 2%. Results indicate that pressure ulcer preventive measures need to be improved in Germany. PMID- 29329471 TI - Diagnosing Meniscal Pathology and Understanding How to Evaluate a Postoperative Meniscus Based on the Operative Procedure. AB - Magnetic resonance imaging (MRI) represents the preferred noninvasive imaging technique to diagnose meniscal pathology in the pre- and postoperative setting. Furthermore, characterization of meniscal tissue MR properties has been possible by the development of advanced MRI techniques. Suspected meniscal tears are a frequent indication for MRI and the International Society of Arthroscopy, Knee Surgery and Orthopaedic Sports Medicine (ISAKOS) classification system has been developed to facilitate accurate and uniform reporting of such meniscal tears. Partial meniscectomy and meniscal suture repair are among the commonly performed procedures and several signs have been described to detect postoperative recurrent tears on MRI. Other techniques that have proven useful for meniscal assessment are ultrasound (US) and computed tomography (CT) arthrography. In recent years, US is being increasingly used in the selective assessment of some meniscal pathology such as tears, parameniscal cysts and meniscal extrusion as it is a relatively inexpensive, accessible, and safe technique. CT arthrography has been advocated as an acceptable alternative in patients with contraindications for MRI, with comparable diagnostic performance. PMID- 29329473 TI - Intrabiliary argon plasma coagulation hemostasis by direct cholangioscopy for a tricky post-ERCP bleeding. PMID- 29329472 TI - Impact of Thrombus Sidedness on Presentation and Outcomes of Patients with Proximal Lower Extremity Deep Vein Thrombosis. AB - Small studies have suggested differences in demographics and outcomes between left- and right-sided deep vein thrombosis (DVT), and also unilateral versus bilateral DVT. We investigated the clinical presentation and outcomes of patients with DVT based on thrombus sidedness. The authors used the data from the Registro Informatizado Enfermedad TromboEmbolica (RIETE) database (2001-2016) to identify patients with symptomatic proximal lower-extremity DVT. Main outcomes included cumulative 90-day symptomatic pulmonary embolism (PE) and 1-year mortality. Overall, 30,445 patients were included. The majority of DVTs occurred in the left leg (16,421 left-sided, 12,643 right-sided, and 1,390 bilateral; p < 0.001 for chi-squared test comparing all three groups). Comorbidities were relatively similar in those with left-sided and right-sided DVT. Compared with those with left-sided DVT, patients with right-sided DVT had higher relative frequency of PE (26% versus 23%, p < 0.001) and 1-year mortality (odds ratio [OR]: 1.08; 95% confidence interval [CI]: 1.00-1.18). This difference in mortality did not persist after multivariable adjustment (OR: 1.01; 95% CI: 0.93-1.1). Patients with bilateral DVT had a greater burden of comorbidities such as heart failure, and recent surgery compared with those with unilateral DVT (p < 0.001), and higher relative frequency of PE (48%), and 1-year mortality (24.1%). Worse outcomes in patients with bilateral DVT were attenuated but persisted after multivariable adjustment for demographics and risk factors (OR: 1.64; 95% CI: 1.43-1.87). Patients with bilateral DVT had worse outcomes during and after discontinuation of anticoagulation. There is a left-sided preponderance for proximal lower-extremity DVT. Compared with those with left-sided DVT, patients with right-sided DVT have slightly higher rates of PE. Bilateral DVT is associated with markedly worse short-term and 1-year outcomes. PMID- 29329474 TI - Immediate retrieval of a maldeployed lumen-apposing metal stent from a walled-off cavity. PMID- 29329476 TI - Pay attention to a "window-blind" appearance of the distal rectal muscle layer during endoscopic submucosal dissection. PMID- 29329475 TI - Endoscopic ultrasound-guided sclerosant injection and coil embolization of bleeding gastric varices. PMID- 29329477 TI - Colorectal endoscopic submucosal dissection using the "dental floss with rubber band method". PMID- 29329478 TI - Migrated endoclip removal after cholecystectomy under digital single-operator cholangioscopy guidance. PMID- 29329479 TI - Individual endoscopic management of anastomotic insufficiency after esophagectomy for esophageal squamous cell carcinoma and creation of a neostomach. PMID- 29329480 TI - Direct endoscopy and diagnosis of adenocarcinoma following metal stent-based drainage of a pancreatic cyst. PMID- 29329481 TI - Antibiotics Development and the Emergence of Resistance: Clinical Pharmacology to the Rescue. PMID- 29329483 TI - Recognizing elevated blood pressure in pediatrics: the value of repeated measures. PMID- 29329482 TI - Pharmacokinetics of Rolapitant in Patients With Mild to Moderate Hepatic Impairment. AB - Rolapitant is a selective and long-acting neurokinin-1 receptor antagonist approved in an oral formulation in combination with other antiemetic agents for the prevention of delayed chemotherapy-induced nausea and vomiting in adults. This was a phase 1 open-label, parallel-group pharmacokinetic and safety study of a single oral dose of 180 mg of rolapitant and its major active metabolite, M19, in subjects with mild and moderate hepatic impairment compared with healthy matched controls. Pharmacokinetics were assessed by a mixed-model analysis of variance of log-transformed values for maximum observed plasma concentration (Cmax ), observed time at Cmax (tmax ), area under the plasma concentration-time curve (AUC) from time 0 to the time of the last quantifiable concentration (AUC0 t ), and AUC from time 0 to 120 hours (AUC0-120 ), with hepatic group as a fixed effect. Mean rolapitant Cmax , AUC0-t , and AUC0-120 were similar in the mild hepatic impairment and healthy control groups. In subjects with moderate hepatic impairment, AUC0-t was similar and Cmax was 25% lower than in healthy controls. Mean M19 Cmax and AUC0-t were similar in the mild hepatic impairment group and healthy controls, but <20% lower in those with moderate hepatic impairment versus healthy controls. Fraction of unbound rolapitant was comparable in all groups for rolapitant and M19. Rolapitant was well tolerated in all groups, without serious adverse events. Pharmacokinetic differences between healthy subjects and those with mild or moderate hepatic impairment are unlikely to pose a safety risk and do not warrant predefined dosage adjustment in the presence of hepatic impairment. PMID- 29329484 TI - Effects of Teriparatide Compared with Risedronate on the Risk of Fractures in Subgroups of Postmenopausal Women with Severe Osteoporosis: The VERO Trial. AB - The 2-year, randomized, double-blind, active-controlled fracture endpoint VERO study included postmenopausal women with established osteoporosis, who had at least 2 moderate or 1 severe baseline vertebral fractures (VFx), and bone mineral density (BMD) T-score <=-1.5. Patients were treated with either s.c. daily teriparatide 20 MUg or oral weekly risedronate 35 mg. As previously reported, the risk of new VFx and clinical fractures (a composite of clinical VFx and nonvertebral fragility fractures [NVFFx]) was statistically significantly reduced with teriparatide compared with risedronate. Here we present the prospectively planned subgroup analyses of fracture data across subgroups, which were predefined by the following baseline characteristics: age, number and severity of prevalent VFx, prevalent nonvertebral fractures (NVFx), glucocorticoid use, prior osteoporosis drugs, recent bisphosphonate use, clinical VFx in the year before study entry, and baseline BMD. Heterogeneity of the treatment effect on the primary endpoint (new VFx), and the four key secondary endpoints (including clinical fractures and NVFFx) were investigated by logistic and Cox proportional hazards regression models. A total of 1360 women were randomized and treated (680 per group). Mean age was 72.1 years, mean (SD) number of prevalent VFx was 2.7 (2.1), 55.4% had a BMD T-score <-2.5, 36.5% had a recent clinical VFx, 28.3% had a prior major NVFx, 43.2% were osteoporosis drug-naive, 39.3% were recent bisphosphonate users, and 9.3% were taking glucocorticoids at a prednisone equivalent dose of >5 mg/d. For most fracture endpoints, the risk reduction of teriparatide versus risedronate did not significantly differ in any of the subgroups analyzed (treatment-by-subgroup interaction p > 0.1), with most subgroups mirroring results from the total study population. In conclusion, in postmenopausal women with severe osteoporosis, the antifracture efficacy of teriparatide compared with risedronate was consistent in a wide range of patient settings, including treatment-naive and previously treated patients. (c) 2018 The Authors. Journal of Bone and Mineral Research Published by Wiley Periodicals Inc. PMID- 29329485 TI - Photo-Initiated Reduction of CO2 by H2 on Silica Surface. AB - The reduction of CO2 is a promising route to produce valuable chemicals or fuels and create C-neutral resource cycles. Many different approaches to CO2 reduction have been investigated, but the ability of vacuum UV (VUV) irradiation to cleave C-O bonds has remained largely unexplored for use in processes that convert CO2 into useful products. Compared with other photo-driven CO2 conversion processes, VUV-initiated CO2 reduction can achieve much greater conversion under common photochemical reaction conditions when H2 and non-reducible oxides are present. Infrared spectroscopy provides evidence for a chain reaction initiated by VUV induced CO2 splitting, which is enhanced in the presence of H2 and silica. When the reaction is carried out in the presence of silica or alumina surfaces, CO yields are increased and CH4 is formed as the only other detected product. CH4 production is not promoted by traditional photocatalysts such as TiO2 under these conditions. Assuming improvements in lamp and reactor efficiencies with scale up, or coupling with other available CO/CO2 hydrogenation techniques, these results reveal a potential, simple strategy by which CO2 could be valorized. PMID- 29329487 TI - A History of Pivotal Advances in Clinical Research into Bone and Mineral Diseases. PMID- 29329486 TI - Cost effectiveness of guided Internet-based interventions for depression in comparison with control conditions: An individual-participant data meta-analysis. AB - BACKGROUND: There is limited evidence on the cost effectiveness of Internet-based treatments for depression. The aim was to evaluate the cost effectiveness of guided Internet-based interventions for depression compared to controls. METHODS: Individual-participant data from five randomized controlled trials (RCT), including 1,426 participants, were combined. Cost-effectiveness analyses were conducted at 8 weeks, 6 months, and 12 months follow-up. RESULTS: The guided Internet-based interventions were more costly than the controls, but not statistically significant (12 months mean difference = ?406, 95% CI: - 611 to 1,444). The mean differences in clinical effects were not statistically significant (12 months mean difference = 1.75, 95% CI: - .09 to 3.60 in Center for Epidemiologic Studies Depression Scale [CES-D] score, .06, 95% CI: - .02 to .13 in response rate, and .00, 95% CI: - .03 to .03 in quality-adjusted life years [QALYs]). Cost-effectiveness acceptability curves indicated that high investments are needed to reach an acceptable probability that the intervention is cost effective compared to control for CES-D and response to treatment (e.g., at 12-month follow-up the probability of being cost effective was .95 at a ceiling ratio of 2,000 ?/point of improvement in CES-D score). For QALYs, the intervention's probability of being cost effective compared to control was low at the commonly accepted willingness-to-pay threshold (e.g., at 12-month follow-up the probability was .29 and. 31 at a ceiling ratio of 24,000 and 35,000 ?/QALY, respectively). CONCLUSIONS: Based on the present findings, guided Internet-based interventions for depression are not considered cost effective compared to controls. However, only a minority of RCTs investigating the clinical effectiveness of guided Internet-based interventions also assessed cost effectiveness and were included in this individual-participant data meta analysis. PMID- 29329488 TI - Genetic and Molecular Insights Into Genotype-Phenotype Relationships in Osteopathia Striata With Cranial Sclerosis (OSCS) Through the Analysis of Novel Mouse Wtx Mutant Alleles. AB - The X-linked WTX/AMER1 protein constitutes an important component of the beta catenin destruction complex that can both enhance and suppress canonical beta catenin signaling. Somatic mutations in WTX/AMER1 have been found in a proportion of the pediatric kidney cancer Wilms' tumor. By contrast, germline mutations cause the severe sclerosing bone dysplasia osteopathia striata congenita with cranial sclerosis (OSCS), a condition usually associated with fetal or perinatal lethality in male patients. Here we address the developmental and molecular function of WTX by generating two novel mouse alleles. We show that in addition to the previously reported skeletal abnormalities, loss of Wtx causes severe midline fusion defects including cleft palate and ectopic synostosis at the base of the skull. By contrast, deletion of the C-terminal part of the protein results in only mild developmental abnormalities permitting survival beyond birth. Adult analysis, however, revealed skeletal defects including changed skull morphology and an increased whole-body bone density, resembling a subgroup of male patients carrying a milder, survivable phenotype. Molecular analysis in vitro showed that while beta-catenin fails to co-immunoprecipitate with the truncated protein, partial recruitment appears to be achieved in an indirect manner using AXIN/AXIN2 as a molecular bridge. Taken together our analysis provides a novel model for WTX caused bone diseases and explains on the molecular level how truncation mutations in this gene may retain some of WTX-protein functions. (c) 2018 American Society for Bone and Mineral Research. PMID- 29329489 TI - Mycophenolic Acid and Its Metabolites in Kidney Transplant Recipients: A Semimechanistic Enterohepatic Circulation Model to Improve Estimating Exposure. AB - Mycophenolic acid (MPA) is an approved immunosuppressive agent widely prescribed to prevent rejection after kidney transplantation. Wide between-subject variability (BSV) in MPA exposure exists which in part may be due to variability in enterohepatic recirculation (EHC). Several modeling strategies were developed to evaluate EHC as part of MPA pharmacokinetics, however mechanistic representation of EHC is limited. These models have not provided a satisfactory representation of the physiology of EHC in their modeling assumptions. The aim of this study was i) to develop an integrated model of MPA (total and unbound) and its metabolites (MPAG and acyl-MPAG) in kidney recipients, where this model provides a more physiological representation of EHC process, and ii) to evaluate the effect of donor and recipient clinical covariates and genotypes on MPA disposition. A five-compartment model with first-order input into an unbound MPA compartment connected to the MPAG, acyl-MPAG, and gallbladder compartment best fit the data. To represent the EHC process, the model was built based on the physiological concepts related to the hepatobiliary system and the gallbladder filling and emptying processes. The effect of cyclosporine versus tacrolimus on clearance of unbound MPA was included in the base model. Covariate analysis showed creatinine clearance to be significant on oral clearance of unbound MPA. The hepatic nuclear factor 1 alpha (HNF1A) genetic single nucleotide polymorphism (SNP) (rs2393791) in the recipient significantly affected the fraction of enterohepatically-circulated drug. Oral clearance of MPAG was affected by recipient IMPDH1 SNP (rs2288553), diabetes at the time of transplant, and donor sex. PMID- 29329490 TI - Nematode eggs observed in cytology of cerebrospinal fluid diagnostic for intramedullary Spirocerca lupi spinal cord migration. AB - Spinal spirocercosis due to aberrant Spirocerca lupi nematode migration is an emerging etiology for acute myelitis in dogs in Israel, causing severe, mostly nonsymmetrical hind limb paresis or paralysis, and sometimes tetraparesis or tetraparalysis. So far, incidental identification of parasites during spinal surgery or at necropsy provides the only definite diagnosis, while antemortem diagnosis of this condition has been uncertain. Specifically, antemortem diagnosis is based on the typical clinical presentation of acute, progressive, asymmetrical hind limb paresis or paralysis, with moderate to severe eosinophilic to mixed cerebrospinal fluid (CSF) pleocytosis and increased CSF protein concentration. Exclusion of other differential diagnoses also requires using spinal cord imaging. In this novel report, we document a case of an intradural spinal spirocercosis in a dog, diagnosed antemortem, by detecting S lupi eggs in the CSF, and subsequent treatment, resulting in the resolution of the clinical signs. PMID- 29329492 TI - Failure to confirm high blood pressures in pediatric care-quantifying the risks of misclassification. AB - Pediatric practice guidelines call for repeating an elevated office blood pressure (BP) at the same visit, but there are few data available to support this recommendation. We compared the visit results in children aged 3 to 17 years with a BP reading >=95th percentile (n = 186 732) based on the initial BP and the mean of two BP readings, using electronic medical records from 2012-2015. Failure to repeat an initial BP reading >=95th percentile would lead to a false "hypertensive" visit result in 54.1% of children who would require follow-up visits. After an initial visit result indicating hypertension, hypertension stage I or stage II was sustained in 2.3% and 11.3% of youth during their next visits, respectively. In conclusion, only approximately half of the pediatric patients would be correctly classified based on their initial BP. The recommendation to repeat high BP during the same visit needs to be emphasized because it saves unnecessary follow-up visits. PMID- 29329493 TI - A Randomized Double-Blind Controlled Trial of Intravenous Meloxicam in the Treatment of Pain Following Dental Impaction Surgery. AB - : This randomized, controlled phase 2 study was conducted to evaluate the analgesic efficacy, safety, and tolerability of single intravenous (IV) doses of 15 mg, 30 mg, and 60 mg meloxicam compared with oral ibuprofen 400 mg and placebo after dental impaction surgery. The primary efficacy end point was the sum of time-weighted pain intensity differences for 0-24 hours postdose. Among 230 evaluable subjects, meloxicam IV 60 mg produced the greatest reduction in pain, followed by the 30-mg and 15-mg doses. Statistically significant differences in summed pain intensity differences over 24 hours were demonstrated for each active treatment group vs placebo (favoring active treatment) and for meloxicam IV 30 mg and 60 mg vs ibuprofen 400 mg (favoring meloxicam IV). Moreover, there was a statistically significant dose response for meloxicam IV 15 mg to 60 mg. The onset of action for meloxicam IV was rapid and sustained; significant differences in pain intensity differences were detected as early as 10 minutes postdose and lasted through the 24-hour postdose period. Subjects in the meloxicam IV groups were more likely than placebo recipients to achieve perceptible and meaningful pain relief and were less likely to use rescue medication. Patient-reported global evaluation showed that meloxicam IV 60 mg had the highest rating. There were no deaths, serious adverse events, or discontinuations due to adverse events. The incidence of subjects with >=1 treatment-emergent adverse event was greatest in the placebo group, followed by the groups that received ibuprofen, meloxicam IV 15 mg, 30 mg, and 60 mg. Nausea was the most commonly reported treatment-emergent adverse event. CLINICAL TRIAL REGISTRATION NUMBER: NCT00945763. PMID- 29329494 TI - Contraceptive Use over Five Years After Receipt Or Denial of Abortion Services. AB - CONTEXT: Nonuse and inconsistent use of contraceptives contribute to a high incidence of unintended pregnancy and abortion among U.S. women. Little is known, however, about how these outcomes shape women's subsequent contraceptive use and unintended pregnancy risk. METHODS: Contraceptive use was examined among 880 participants in the Turnaway Study, a five-year longitudinal study of women who sought abortions at 30 U.S. facilities in 2008-2010. Multivariable mixed-effects logistic and multinomial regression models assessed differences in use by whether women received the abortion; results were used to calculate predicted percentages of women using each method. The main groups of interest were 415 women who had an abortion at a gestation near their facility's limit and 160 who were denied abortion because they were beyond the limit, and who consequently gave birth. RESULTS: During each of the approximately five years of follow-up, the predicted percentage using any contraceptive method was 86% among women who had the abortion and 81% among those denied it. Over the entire period, the former women were more likely than the latter to use any method (odds ratio, 1.8). However, they were less likely to rely on female sterilization, rather than no method (risk ratio, 0.5), and more likely to use barrier methods (1.7) or short-acting reversible contraceptives (2.6). CONCLUSION: Women's elevated risk of unintended pregnancy after abortion is likely due at least partly to reliance on methods with relatively low effectiveness. Factors affecting contraceptive access postabortion, as well as individual characteristics such as fecundability, require research attention. PMID- 29329495 TI - Organometallic-Mediated Radical Polymerization of Vinylidene Fluoride. AB - An unprecedented level of control for the radical polymerization of vinylidene fluoride (VDF), yielding well-defined PVDF (at least up to 14 500 g mol-1 ) with low dispersity (<=1.32), was achieved using organometallic-mediated radical polymerization (OMRP) with an organocobalt compound as initiator. The high chain end fidelity was demonstrated by the synthesis of PVDF- and PVAc-containing di and triblock copolymers. DFT calculations rationalize the efficient reactivation of both head and tail chain end dormant species. PMID- 29329496 TI - Positive-Feedback Regulation of Subchondral H-Type Vessel Formation by Chondrocyte Promotes Osteoarthritis Development in Mice. AB - Vascular-invasion-mediated interactions between activated articular chondrocytes and subchondral bone are essential for osteoarthritis (OA) development. Here, we determined the role of nutrient sensing mechanistic target of rapamycin complex 1 (mTORC1) signaling in the crosstalk across the bone cartilage interface and its regulatory mechanisms. Then mice with chondrocyte-specific mTORC1 activation (Tsc1 CKO and Tsc1 CKOER ) or inhibition (Raptor CKOER ) and their littermate controls were subjected to OA induced by destabilization of the medial meniscus (DMM) or not. DMM or Tsc1 CKO mice were treated with bevacizumab, a vascular endothelial growth factor (VEGF)-A antibody that blocks angiogenesis. Articular cartilage degeneration was evaluated using the Osteoarthritis Research Society International score. Immunostaining and Western blotting were conducted to detect H-type vessels and protein levels in mice. Primary chondrocytes from mutant mice and ADTC5 cells were treated with interleukin-1beta to investigate the role of chondrocyte mTORC1 in VEGF-A secretion and in vitro vascular formation. Clearly, H-type vessels were increased in subchondral bone in DMM-induced OA and aged mice. Cartilage mTORC1 activation stimulated VEGF-A production in articular chondrocyte and H-type vessel formation in subchondral bone. Chondrocyte mTORC1 promoted OA partially through formation of VEGF-A-stimulated subchondral H-type vessels. In particular, vascular-derived nutrients activated chondrocyte mTORC1, and stimulated chondrocyte activation and production of VEGF, resulting in further angiogenesis in subchondral bone. Thus a positive-feedback regulation of H-type vessel formation in subchondral bone by articular chondrocyte nutrient sensing mTORC1 signaling is essential for the pathogenesis and progression of OA. (c) 2018 American Society for Bone and Mineral Research. PMID- 29329497 TI - Pharmacokinetic Interactions Between Elbasvir/Grazoprevir and Immunosuppressant Drugs in Healthy Volunteers. AB - Elbasvir (EBR)/grazoprevir (GZR) may be coadministered with immunosuppressant drugs in posttransplant people who are infected with hepatitis C virus. The aim of the present study was to assess the safety and pharmacokinetic interactions between EBR and GZR and single doses of cyclosporine, tacrolimus, mycophenolate mofetil (MMF), and prednisone. This was a 4-part, open-label study in 58 healthy volunteers. Participants received single doses of cyclosporine 400 mg, tacrolimus 2 mg, MMF 1 g, or prednisone 40 mg alone or in the presence of once-daily EBR 50 mg/GZR 200 mg. Multiple oral doses of EBR + GZR had no significant effect on cyclosporine. However, in the presence of cyclosporine, the 24-hour area under the concentration-time curve of GZR was increased by approximately 15-fold (geometric mean ratio [90%CI] 15.21 [12.83; 18.04]); the concentration of EBR was increased approximately 2-fold in the presence of cyclosporine. Coadministration of EBR/GZR and tacrolimus did not affect the pharmacokinetics of EBR or GZR, but resulted in an increase in tacrolimus AUC (geometric mean ratio [90%CI] 1.43 [1.24; 1.64]). There were no clinically relevant interactions between EBR/GZR and either MMF or prednisone. Data from the present study indicate that EBR/GZR may be coadministered in people receiving tacrolimus, MMF, and prednisolone. EBR/GZR is contraindicated in people receiving cyclosporine because the significantly higher concentrations of GZR may increase the risk of transaminase elevations. PMID- 29329498 TI - Treatment outcomes of acute bipolar depressive episode with psychosis. AB - BACKGROUND: The impact of psychosis on the treatment of bipolar depression is remarkably understudied. The primary aim of this study was to compare treatment outcomes of bipolar depressed individuals with and without psychosis. The secondary aim was to compare the effect of lithium and quetiapine, each with adjunctive personalized treatments (APTs), in the psychotic subgroup. METHODS: We assessed participants with DSM-IV bipolar depression included in a comparative effectiveness study of lithium and quetiapine with APTs (the Bipolar CHOICE study). Severity was assessed by the Bipolar Inventory of Symptoms Scale (BISS) and by the Clinical Global Impression Scale-Severity-Bipolar Version (CGI-S-BP). Mixed models were used to assess the course of symptom change, and Cox regression survival analysis was used to assess the time to remission. RESULTS: Psychotic features were present in 10.6% (n = 32) of the depressed participants (n = 303). Those with psychotic features had higher scores on the BISS before (75.2 +/- 17.6 vs. 54.9 +/- 16.3; P < .001) and after (37.2 +/- 19.7 vs. 26.3 +/- 18.0; P = .003) 6-month treatment. The CGI-S-BP yielded similar results. Participants with and without psychosis had similar course of symptom improvement and similar time to remission. There was no significant difference in the treatment outcomes of lithium (n = 11) and quetiapine (n = 21) among the psychotic subgroup. CONCLUSION: Bipolar depressive episodes with psychotic features are more severe, and compared to nonpsychotic depressions, present a similar course of improvement. Given the small number of participants presenting psychosis, the lack of statistically significant difference between lithium- and quetiapine based treatment of psychotic bipolar depressive episodes needs replication in a larger sample. PMID- 29329499 TI - A pilot study of the comparative efficacy of 100 Hz magnetic seizure therapy and electroconvulsive therapy in persistent depression. AB - BACKGROUND: Magnetic seizure therapy (MST) is a novel brain stimulation technique that uses a high-powered transcranial magnetic stimulation device to produce therapeutic seizures. Preliminary MST studies have found antidepressant effects in the absence of cognitive side effects but its efficacy compared to electroconvulsive therapy (ECT) remains unclear. The aim of this study was to investigate the therapeutic efficacy and cognitive profile of MST compared to standard right unilateral ECT treatment. METHODS: Thirty-seven patients completed a course of at least nine ECT or MST treatments in a randomized double-blind protocol. Assessments of depression severity and cognition were performed before and after treatment. RESULTS: No difference in the antidepressant effectiveness between the treatments was seen across any of the clinical outcome measures, although the overall response rates in both groups were quite low. In regards to cognition, following MST there were significant improvements in tests of psychomotor speed, verbal memory, and cognitive inhibition, with no reductions in cognitive performance. Following ECT there was significant improvement in only one of the cognitive inhibition tasks. With respect to the between-group comparisons, the MST group showed a significantly greater improvement on psychomotor speed than ECT. CONCLUSIONS: MST showed similar efficacy to right unilateral ECT in patients with treatment-resistant depression without cognitive side effects but in a sample that was only of sufficient size to demonstrate relatively large differences in response between the two groups. Future research should aim to optimize the methods of MST administration and compare its efficacy to ECT in large randomized controlled trials. PMID- 29329500 TI - A C=O???Isothiouronium Interaction Dictates Enantiodiscrimination in Acylative Kinetic Resolutions of Tertiary Heterocyclic Alcohols. AB - A combination of experimental and computational studies have identified a C=O???isothiouronium interaction as key to efficient enantiodiscrimination in the kinetic resolution of tertiary heterocyclic alcohols bearing up to three potential recognition motifs at the stereogenic tertiary carbinol center. This discrimination was exploited in the isothiourea-catalyzed acylative kinetic resolution of tertiary heterocyclic alcohols (38 examples, s factors up to >200). The reaction proceeds at low catalyst loadings (generally 1 mol %) with either isobutyric or acetic anhydride as the acylating agent under mild conditions. PMID- 29329502 TI - Energetic Costs, Precision, and Transport Efficiency of Molecular Motors. AB - An efficient molecular motor would deliver cargo to the target site at a high speed and in a punctual manner while consuming a minimal amount of energy. According to a recently formulated thermodynamic principle, referred to as the thermodynamic uncertainty relation, the travel distance of a motor and its variance are, however, constrained by the free energy being consumed. Here we use the principle underlying the uncertainty relation to quantify the transport efficiency of molecular motors for varying ATP concentration ([ATP]) and applied load (f). Our analyses of experimental data find that transport efficiencies of the motors studied here are semioptimized under the cellular condition. The efficiency is significantly deteriorated for a kinesin-1 mutant that has a longer neck-linker, which underscores the importance of molecular structure. It is remarkable to recognize that, among many possible directions for optimization, biological motors have evolved to optimize the transport efficiency in particular. PMID- 29329503 TI - Chemical imaging of aggressive basal cell carcinoma using time-of-flight secondary ion mass spectrometry. AB - A set of basal cell carcinoma samples, removed by Mohs micrographic surgery and pathologically identified as having an aggressive subtype, have been analyzed using time-of-flight secondary ion mass spectrometry (SIMS). The SIMS analysis employed a gas cluster ion beam (GCIB) to increase the sensitivity of the technique for the detection of intact lipid species. The GCIB also allowed these intact molecular signals to be maintained while surface contamination and delocalized chemicals were removed from the upper tissue surface. Distinct mass spectral signals were detected from different regions of the tissue (epidermis, dermis, hair follicles, sebaceous glands, scar tissue, and cancerous tissue) allowing mass spectral pathology to be performed. The cancerous regions of the tissue showed a particular increase in sphingomyelin signals that were detected in both positive and negative ion mode along with increased specific phosphatidylserine and phosphatidylinositol signals observed in negative ion mode. Samples containing mixed more and less aggressive tumor regions showed increased phosphatidylcholine lipid content in the less aggressive areas similar to a punch biopsy sample of a nonaggressive nodular lesion. PMID- 29329504 TI - Expression of vitamin D receptor in the subsynovial connective tissue in women with carpal tunnel syndrome. AB - : Studies suggest that low vitamin D levels are associated with carpal tunnel syndrome. We aimed to evaluate whether level of vitamin D receptor expression in the endothelial cells of the subsynovial connective tissue is associated with clinical features of carpal tunnel syndrome. We obtained the subsynovial connective tissue from 52 women with carpal tunnel syndrome during surgery and performed immunohistochemical analysis of vitamin D receptors in the endothelial cells of the subsynovial connective tissue. We explored correlation of vitamin D receptor expression with clinical features of carpal tunnel syndrome, such as age, symptom duration, symptom severity and electrophysiological severity. Diverse range of vitamin D receptor expression was observed. Vitamin D receptor expression was independently associated with distal motor latency. This suggests that vitamin D receptor expression may be associated with disease progression, as prolonged distal motor latency reflects severity of the disease. Further studies are necessary to explore the role of vitamin D and vitamin D receptors in patients with carpal tunnel syndrome. LEVEL OF EVIDENCE: IV. PMID- 29329501 TI - Sustained plasma hepcidin suppression and iron elevation by Anticalin-derived hepcidin antagonist in cynomolgus monkey. AB - BACKGROUND AND PURPOSE: Anaemia of chronic disease (ACD) has been linked to iron restricted erythropoiesis imposed by high circulating levels of hepcidin, a 25 amino acid hepatocyte-derived peptide that controls systemic iron homeostasis. Here, we report the engineering of the human lipocalin-derived, small protein based anticalin PRS-080 hepcidin antagonist with high affinity and selectivity. EXPERIMENTAL APPROACH: Anticalin- and hepcidin-specific pharmacokinetic (PK)/pharmacodynamic modelling (PD) was used to design and select the suitable drug candidate based on t1/2 extension and duration of hepcidin suppression. The development of a novel free hepcidin assay enabled accurate analysis of bioactive hepcidin suppression and elucidation of the observed plasma iron levels after PRS 080-PEG30 administration in vivo. KEY RESULTS: PRS-080 had a hepcidin-binding affinity of 0.07 nM and, after coupling to 30 kD PEG (PRS-080-PEG30), a t1/2 of 43 h in cynomolgus monkeys. Dose-dependent iron mobilization and hepcidin suppression were observed after a single i.v. dose of PRS-080-PEG30 in cynomolgus monkeys. Importantly, in these animals, suppression of free hepcidin and subsequent plasma iron elevation were sustained during repeated s.c. dosing. After repeated dosing and followed by a treatment-free interval, all iron parameters returned to pre-dose values. CONCLUSIONS AND IMPLICATIONS: In conclusion, we developed a dose-dependent and safe approach for the direct suppression of hepcidin, resulting in prolonged iron mobilization to alleviate iron-restricted erythropoiesis that can address the root cause of ACD. PRS-080 PEG30 is currently in early clinical development. PMID- 29329505 TI - Tips to avoid complications related to direct cannulation of the axillary artery. PMID- 29329506 TI - Response to 'Finding the perfect sclerosant - is it possible?' PMID- 29329507 TI - Differences in salaries of physician assistants in the USA by race, ethnicity and sex. AB - Objectives Data from the Academy of American Physician Assistants have suggested there are no differences in salaries by race and ethnic group. Our objective was to compare salaries of physician assistants for different racial and ethnic groups and sexes using another data source. Methods Data from the American Community Surveys (2010-2012) to examine pay differentials of physician assistants. Ordinary least squares regression analysis to compare the salaries of males and females, and those of racial and ethnic groups. Results The majority of physician assistants in recent decades have been women. Their salaries are substantially below those of their male counterparts. The number from racial and ethnic minorities remains low. American Community Surveys data show salaries to be lower than that reported by the American Academy of Physician Assistants. The salaries of Black and Hispanic physician assistants lag significantly behind the salaries of those who are White. Conclusions American Community Surveys data suggest that previously published Academy of American Physician Assistants survey data may have been biased with a low percentage of physician assistants from racial and ethnic minorities which suggests that the Academy of American Physician Assistants need to focus on recruiting greater numbers of minorities. PMID- 29329508 TI - Hospital readmissions and the day of the week. AB - Objectives Patients discharged from hospitals on a Friday (Friday discharges) are readmitted sooner (a shorter time-to-emergency-readmission) than those discharged on any other day of the week. To evaluate the cost-effectiveness of increasing weekend capacity, the effect estimate of Friday discharge on time-to-emergency readmission needs to be precise. However, precise effect estimation is complicated by the confounding effect of differing healthcare-seeking behaviour and admission practices, and therefore different admission probability, by day of the week. The objective of this research was to examine how differing admission probability by day of the week influences the effect of discharge day on time-to emergency-readmission. Methods We used a Markov model to determine how day of the week admission probability would theoretically affect the time-to-emergency readmission for Friday and Wednesday discharges. We tested this in a cohort of patients who have had a history of respiratory illness, using a Cox proportional hazards model to fit the time-to-emergency-readmission to any Quebec hospital as a function of the day of the week of discharge and admission. We fitted another Cox model with an additional time-varying covariate for the current day of the week, to model differing admission probabilities by day of the week. Results Our Markov model showed that if admission probability is lower on the weekends, Friday discharges will be readmitted later (longer time-to-emergency-readmission) than Wednesday discharges. Using hospital admission data, we found that Friday discharges were readmitted slightly earlier than Wednesday discharges (HR: 1.03, 95% CI: (1.02, 1.05)). After adding a time-varying covariate for the current day of the week, the length of time-to-emergency-readmission for a Friday discharge increased, but it was still earlier than a Wednesday discharge (HR: 1.04, 95% CI: (1.01, 1.07)). Conclusions The lower admission probabilities on the weekend confound the effect of Friday discharge on time-to-emergency-readmission by increasing the time-to-emergency-readmission. This confounding effect causes an underestimate of the effect of Friday discharge on time-to-emergency-readmission. PMID- 29329509 TI - Audit of submissions: July 2016-June 2017. PMID- 29329510 TI - The predictive value of hunger score on gastric evacuation after oral intake of carbohydrate solution. AB - BACKGROUND: Surgical patients are asked to fast for a sufficient duration to ensure that the amount of residual liquid in the stomach is within the safe range, thereby reducing the risk of gastric reflux perioperatively. The authors hypothesized that subjective hunger numerical rating scale (NRS) score could also help assess the process of gastric emptying and determine the amount of fluid remaining in the stomach. METHODS: The current study consisted of healthy volunteers recruited by advertisement and mutual introduction. Participants were asked to rate their subjective hunger feeling every 30 min after oral administration of 8 mL/kg carbohydrate nutrient solution that contained 10% maltodextrin and 2.5% sucrose. Consecutively, the gastric residual fluid was measured by magnetic resonance imagining (MRI). The Spearman's correlation coefficient, the ROC curves and the stepwise regression were used to analyze the predictive value of NRS for the gastric emptying process. RESULTS: The cohort consisted of 29 healthy volunteers enrolled in this study. The area under ROC curves estimated by the NRS score for the gastric residual volume of 2 mL/kg, 1 mL/kg, and 0.5 mL/kg were AUC2.0 = 0.78, AUC1.0 = 0.76, and AUC0.5 = 0.72, respectively. The correlation coefficient between the NRS score and the residual liquid in the stomach was -0.57 (P < 0.01). The correlation coefficient between the increase of the NRS score and the decrease of gastric liquid residual volume was 0.46 (P < 0.01). The standardized estimate of NRS score for the residual volume was -0.18 (P < 0.01) and the standardized estimate of fasting time was 0.73 (P < 0.01). CONCLUSIONS: The subjective hunger NRS score can not accurately predict the gastric residual volume, but it can provide a reference for clinicians to judge the gastric emptying process and it should be used as a second check after oral intake of clear fluids before surgery according to the new fasting protocol. PMID- 29329511 TI - Classifying and characterizing the development of adaptive behavior in a naturalistic longitudinal study of young children with autism. AB - BACKGROUND: Adaptive behavior, or the ability to function independently in ones' environment, is a key phenotypic construct in autism spectrum disorder (ASD). Few studies of the development of adaptive behavior during preschool to school-age are available, though existing data demonstrate that the degree of ability and impairment associated with ASD, and how it manifests over time, is heterogeneous. Growth mixture models are a statistical technique that can help parse this heterogeneity in trajectories. METHODS: Data from an accelerated longitudinal natural history study (n = 105 children with ASD) were subjected to growth mixture model analysis. Children were assessed up to four times between the ages of 3 to 7.99 years. RESULTS: The best fitting model comprised two classes of trajectory on the Adaptive Behavior Composite score of the Vineland Adaptive Behavior Scale, Second Edition-a low and decreasing trajectory (73% of the sample) and a moderate and stable class (27%). CONCLUSIONS: These results partially replicate the classes observed in a previous study of a similarly characterized sample, suggesting that developmental trajectory may indeed serve as a phenotype. Further, the ability to predict which trajectory a child is likely to follow will be useful in planning for clinical trials. PMID- 29329512 TI - Landscape and rodent community composition are associated with risk of hemorrhagic fever with renal syndrome in two cities in China, 2006-2013. AB - BACKGROUND: Hemorrhagic fever with renal syndrome (HFRS) is a rodent-borne disease caused by hantaviruses. Landscape can influence the risk of hantavirus infection for humans, mainly through its effect on rodent community composition and distribution. It is important to understand how landscapes influence population dynamics for different rodent species and the subsequent effect on HFRS risk. METHODS: To determine how rodent community composition influenced human hantavirus infection, we monitored rodent communities in the prefecture level cities of Loudi and Shaoyang, China, from 2006 to 2013. Land use data were extracted from satellite images and rodent community diversity was analyzed in 45 trapping sites, in different environments. Potential contact matrices, determining how rodent community composition influence HFRS infection among different land use types, were estimated based on rodent community composition and environment type for geo-located HFRS cases. RESULTS: Apodemus agrarius and Rattus norvegicus were the predominant species in Loudi and Shaoyang, respectively. The major risk of HFRS infection was concentrated in areas with cultivated land and was associated with A. agrarius, R. norvegicus, and Rattus flavipectus. In urban areas in Shaoyang, Mus musculus was related to risk of hantavirus infection. CONCLUSIONS: Landscape features and rodent community dynamics may affect the risk of human hantavirus infection. Results of this study may be useful for the development of HFRS prevention initiatives that are customized for regions with different geographical environments. PMID- 29329513 TI - The behavioural phenotype of Potocki-Lupski syndrome: a cross-syndrome comparison. AB - BACKGROUND: Potocki-Lupski syndrome (PTLS) and Smith-Magenis syndrome (SMS) are related genomic disorders, as duplication 17p11.2 (associated with PTLS) is the reciprocal recombination product of the SMS microdeletion. While SMS has a relatively well-delineated behavioural phenotype, the behavioural profile in PTLS is less well defined, despite purported associations with autism spectrum disorder (ASD) and the suggestion that some behaviours may be diametric to those seen in SMS. METHODS: Caregivers of individuals with PTLS (N = 34; M age = 12.43, SD = 6.78) completed online behavioural questionnaires, including the Challenging Behaviour Questionnaire (CBQ), the Activity Questionnaire (TAQ), the Repetitive Behaviour Questionnaire (RBQ), the Mood, Interest and Pleasure Questionnaire Short Form (MIPQ-S) and the Social Communication Questionnaire (SCQ), which assesses behaviours associated with ASD. Individuals with PTLS were matched on age and adaptive functioning to individuals with SMS (N = 31; M age = 13.61, SD = 6.85) and individuals with idiopathic ASD (N = 33; M age = 12.04, SD = 5.85) from an existing dataset. RESULTS: Individuals with PTLS and SMS were less impaired than those with idiopathic ASD on the communication and reciprocal social interaction subscales of the SCQ, but neither syndrome group differed from idiopathic ASD on the restricted, repetitive and stereotyped behaviours subscale. On the repetitive behaviour measure, individuals with PTLS and idiopathic ASD scored higher than individuals with SMS on the compulsive behaviour subscale. Rates of self-injury and property destruction were significantly lower in PTLS and idiopathic ASD than in SMS. No between-syndrome differences were found in relation to overactivity or mood; however, impulsivity was greater in SMS than in PTLS. CONCLUSIONS: Findings suggest some overlap in the behavioural phenotype of PTLS and features of ASD symptomatology; however, the overall profile of behaviours in PTLS appears to be divergent from both idiopathic ASD and SMS. Relative to idiopathic ASD, PTLS is not characterised by communication or social interaction deficits. However, restricted and repetitive behaviours were evident in PTLS, and these may be characterised specifically by compulsive behaviours. While several behavioural differences were identified between PTLS and SMS, there was little evidence of diametric behavioural phenotypes, particularly in relation to social behaviour. PMID- 29329514 TI - Correction to: Short- and long-term outcomes in infective endocarditis patients: a systematic review and meta-analysis. AB - CORRECTION: Unfortunately, after publication of this article [1], it was noticed that the name of the fifth author was incorrectly displayed as Akshaya Srikanth Bahagavathula. The correct name is Akshaya Srikanth Bhagavathula and can be seen in the corrected author list above. The original article has also been updated to correct this error. PMID- 29329516 TI - Bilateral giant retinal tears in Osteogenesis Imperfecta. AB - BACKGROUND: Osteogenesis imperfecta (OI) is a rare primarily autosomal dominant condition in which the connective tissues of bones, ligaments and sclerae do not form properly. Typically, mutations in COL1A1 and COL1A2 genes lead to the defective formation or quantity of type I collagen, the principle matrix in these tissues. Molecular genetic studies have now elucidated multiple genetic subtypes of the disorder but little literature exists on the risk of retinal tears and detachments in OI. CASE PRESENTATION: We report the first case of a child with a rare recessive type of OI, subtype VIII, resulting from a P3H1 (also known as LEPRE1) gene mutation presenting with bilateral giant retinal tears and the surgical challenges encountered in performing retinal detachment repair due to scleral thinning. The P3H1 gene encodes for prolyl 3-hydroxylase 1 which is involved in the post-translational modification of not only collagen type I but also types II and V which when mutated may result in pathological posterior vitreous detachment (PVD) and giant retinal tear detachments. CONCLUSIONS: Genetic analyses are increasingly important in such cases and may guide patient monitoring and potential prophylactic treatment, known to significantly reduce the probability of giant retinal tear detachments in other high-risk collagenopathies such as Stickler Syndrome Type I. PMID- 29329515 TI - Engaging clinicians and patients to assess and improve frailty measurement in adults with end stage renal disease. AB - BACKGROUND: The Fried frailty phenotype, a measure of physiologic reserve defined by 5 components (exhaustion, unintentional weight loss, low physical activity, slow walking speed, and poor grip strength), is associated with poor outcomes among ESRD patients. However, these 5 components may not fully capture physiologic reserve in this population. We aimed to ascertain opinions of ESRD clinicians and patients about the usefulness of the Fried frailty phenotype and interventions to improve frailty in ESRD patients, and to identify novel components to further characterize frailty in ESRD. METHODS: Clinicians who treat adults with ESRD completed a 2-round Delphi study (n = 41 and n = 36, respectively; response rate = 87%). ESRD patients completed a survey at transplant evaluation (n = 460; response rate = 81%). We compared clinician and patient opinions on the constituent components of frailty. RESULTS: Clinicians were more likely than patients to say that ESRD makes patients frail (97.6% vs. 60.2%). There was consensus among clinicians that exhaustion, low physical activity, slow walking speed, and poor grip strength characterize frailty in ESRD patients; however, 29% of clinicians thought weight loss was not relevant. Patients were less likely than clinicians to say that the 5 Fried frailty components were relevant. Clinicians identified 10 new ESRD-specific potential components including falls (64%), physical decline (61%), and cognitive impairment (39%). Clinicians (83%) and patients (80%) agreed that intradialytic foot-peddlers might make ESRD patients less frail. CONCLUSIONS: There was consensus among clinicians and moderate consensus among patients that frailty is more common in ESRD. Weight loss was not seen as relevant, but new components were identified. These findings are first steps in refining the frailty phenotype and identifying interventions to improve physiologic reserve specific to ESRD patients. PMID- 29329517 TI - Genome-wide analyses of direct target genes of four rice NAC-domain transcription factors involved in drought tolerance. AB - BACKGROUND: Plant stress responses and mechanisms determining tolerance are controlled by diverse sets of genes. Transcription factors (TFs) have been implicated in conferring drought tolerance under drought stress conditions, and the identification of their target genes can elucidate molecular regulatory networks that orchestrate tolerance mechanisms. RESULTS: We generated transgenic rice plants overexpressing the 4 rice TFs, OsNAC5, 6, 9, and 10, under the control of the root-specific RCc3 promoter. We showed that they were tolerant to drought stress with reduced loss of grain yield under drought conditions compared with wild type plants. To understand the molecular mechanisms underlying this tolerance, we here performed chromatin immunoprecipitation (ChIP)-Seq and RNA-Seq analyses to identify the direct target genes of the OsNAC proteins using the RCc3:6MYC-OsNAC expressing roots. A total of 475 binding loci for the 4 OsNAC proteins were identified by cross-referencing their binding to promoter regions and the expression levels of the corresponding genes. The binding loci were distributed among the promoter regions of 391 target genes that were directly up regulated by one of the OsNAC proteins in four RCc3:6MYC-OsNAC transgenic lines. Based on gene ontology (GO) analysis, the direct target genes were related to transmembrane/transporter activity, vesicle, plant hormones, carbohydrate metabolism, and TFs. The direct targets of each OsNAC range from 4.0-8.7% of the total number of up-regulated genes found in the RNA-Seq data sets. Thus, each OsNAC up-regulates a set of direct target genes that alter root system architecture in the RCc3:OsNAC plants to confer drought tolerance. Our results provide a valuable resource for functional dissection of the molecular mechanisms of drought tolerance. CONCLUSIONS: Many of the target genes, including transmembrane/transporter, vesicle related, auxin/hormone related, carbohydrate metabolic processes, and transcription factor genes, that are up-regulated by OsNACs act as the cellular components which would alter the root architectures of RCc3:OsNACs for drought tolerance. PMID- 29329518 TI - The use of eculizumab in gemcitabine induced thrombotic microangiopathy. AB - BACKGROUND: Thrombotic microangiopathy (TMA) secondary to gemcitabine therapy (GiTMA) is a very rare pathology that carries a poor prognosis, with nearly half of the cases progressing to end stage renal disease. GiTMA is most commonly associated with adenocarcinomas, most notably pancreatic cancers. The mainstay of management is withdrawal of the offending drug and supportive care. Plasmapheresis has a limited role and hemodialysis may help in the management of fluid overload secondary to renal failure. Furthermore, a C5 inhibitor, eculizumab, has been successfully used in the treatment of GiTMA. CASE PRESENTATION: A 64-year-old Caucasian female with history of pancreatic adenocarcinoma on gemcitabine chemotherapy presented with signs and symptoms of fluid overload and was found to have abnormal kidney function. Her BP was 195/110 mmHg, serum creatinine 4.48 mg/dl, hemoglobin 8.2 g/dl, platelets 53 * 103/cmm, lactate dehydrogenase 540 IU/L, and was found to have schistocytes on blood film. A diagnosis of TMA secondary to gemcitabine therapy was suspected. Hemodialysis for volume overload and daily plasmapheresis were initiated. After six days of plasmapheresis, renal function did not improve. Further work up revealed ADAMTS 13 activity >15%, low C3, and stool culture and Shiga-toxin PCR were negative. Renal biopsy was consistent with TMA. Gemcitabine was discontinued, but renal function failed to improve and eculizumab therapy was considered due to suspicion of aHUS. Serum creatinine >2.26 mg/dl and a platelet count of >/= 30 * 109/L is highly suggestive of aHUS, while TTP is more likely when creatinine is <2.26 mg/dl and platelet count of <30 * 109/L. She received intravenous eculizumab for eight months, which resulted in significant improvement of renal function. Other markers of hemolysis, namely LDH and bilirubin, also rapidly improved following eculizumab therapy. Plasmapheresis and hemodialysis were discontinued after two and eight weeks of initiation respectively. CONCLUSION: Chemotherapy induced TMA is very rare and requires a high index of clinical suspicion for timely diagnosis. Discontinuation of the offending drug and supportive care is the main stay of treatment; however, eculizumab has been shown to be beneficial in GiTMA. Further research is required to validate this approach. PMID- 29329519 TI - Eikenella corrodens endocarditis and liver abscess in a previously healthy male, a case report. AB - BACKGROUND: Eikenella corrodens is one of the HACEK bacteria constituting part of the normal flora of the oropharynx, however, still an uncommon pathogen. We report a case of a large Eikenella corrodens liver abscess with simultaneously endocarditis in a previously healthy male. CASE PRESENTATION: A 49-year-old Danish man was admitted because of one-month malaise, fever, cough and unintentional weight loss. On admission there was elevated white blood cell count and C-reactive protein, as well as affected liver function tests. Initially pneumonia was suspected, but due to lack of improvement on pneumonia treatment, a PET-CT scan was performed, which showed a large multiloculated abscess in the liver. The abscess was drained using ultrasound guidance. Culture demonstrated Eikenella corrodens. Transesophageal echocardiography revealed aortic endocarditis. The patient was treated with antibiotics and abscess drainage, on which he slowly improved. He was discharged after 1.5 months of hospitalisation. On follow-up 2 months later, the patient was asymptomatic with normalized biochemistry and ultrasound showed complete regression of the abscess. CONCLUSIONS: This is the first case of documented Eikenella corrodens concurrent liver abscess and endocarditis. The case report highlights that Eikenella corrodens should be considered as a cause of liver abscess. Empirical treatment of pyogenic liver abscess will most often cover Eikenella corrodens, but the recommended treatment is a third generation cephalosporin or a fluoroquinolon. A multiloculated liver abscess may require drainage several times during treatment. The finding of Eikenella corrodens should elicit an echocardiography to diagnose endocarditis even in patients without clinical signs of endocarditis. PMID- 29329520 TI - Effects of primary care clinician beliefs and perceived organizational facilitators on the delivery of preventive care to individuals with mental illnesses. AB - BACKGROUND: Although many studies have documented patient-, clinician-, and organizational barriers/facilitators of primary care among people with mental illnesses, few have examined whether these factors predict actual rates of preventive service use. We assessed whether clinician behaviors, beliefs, characteristics, and clinician-reported organizational characteristics, predicted delivery of preventive services in this population. METHODS: Primary care clinicians (n = 247) at Kaiser Permanente Northwest (KPNW) or community health centers and safety-net clinics (CHCs), in six states, completed clinician surveys in 2014. Using electronic health record data, we calculated preventive care-gap rates for patients with mental illnesses empaneled to survey respondents (n = 37,251). Using separate multi-level regression models for each setting, we tested whether survey responses predicted preventive service care-gap rates. RESULTS: After controlling for patient-level characteristics, patients of clinicians who reported a greater likelihood of providing preventive care to psychiatrically asymptomatic patients experienced lower care-gap rates (KPNW gamma= - .05, p = .041; CHCs gamma= - .05, p = .033). In KPNW, patients of female clinicians had fewer care gaps than patients of male clinicians (gamma= - .07, p = .011). In CHCs, patients of clinicians who had practiced longer had fewer care gaps (gamma= - .004, p = .010), as did patients whose clinicians believed that organizational quality goals facilitate preventive service provision (gamma= - .06, p = .006). Case manager availability in CHCs was associated with higher care-gap rates (gamma=.06, p = .028). CONCLUSIONS: Clinicians who report they are likely to address preventive concerns when their mentally ill patients present without apparent psychiatric symptoms had patients with fewer care gaps. In CHCs, care quality goals may facilitate preventive care whereas case managers may not. PMID- 29329521 TI - Treating C3 glomerulopathy with eculizumab. AB - BACKGROUND: C3 glomerulopathy (C3G) is a rare, but severe glomerular disease with grim prognosis. The complex pathogenesis is just unfolding, and involves acquired as well as inherited dysregulation of the alternative pathway of the complement cascade. Currently, there is no established therapy. Treatment with the C5 complement inhibitor eculizumab may be a therapeutic option. However, due to rarity of the disease, parameters predicting treatment response remain largely unknown. METHODS: Seven patients with C3G (five with C3 glomerulonephritis and two with dense deposit disease) were treated with eculizumab. Subjects underwent biopsy before enrollment. The histopathology, clinical data, and response to eculizumab treatment were analyzed. The key parameters to determine outcome were changes of serum creatinine and urinary protein over time. RESULTS: After treatment with eculizumab, four subjects showed significantly improved or stable renal function and urinary protein. A positive response occurred between 2 weeks and 6 months after therapy initiation. One subject (with allograft recurrent C3 glomerulonephritis) initially showed a positive response, but relapsed when eculizumab was discontinued, and did not respond after re-initiation of treatment. Two subjects showed impaired renal function and increasing urinary protein despite therapy with eculizumab. CONCLUSIONS: Eculizumab may be a therapeutic option for a subset of C3G patients. The response to eculizumab is heterogeneous, and early as well as continuous treatment may be necessary to prevent disease progression. These findings emphasize the need for studies identifying genetic and functional complement abnormalities that may help to guide eculizumab treatment and predict response. PMID- 29329522 TI - A-GAME: improving the assembly of pooled functional metagenomics sequence data. AB - BACKGROUND: Expression screening of environmental DNA (eDNA) libraries is a popular approach for the identification and characterization of novel microbial enzymes with promising biotechnological properties. In such "functional metagenomics" experiments, inserts, selected on the basis of activity assays, are sequenced with high throughput sequencing technologies. Assembly is followed by gene prediction, annotation and identification of candidate genes that are subsequently evaluated for biotechnological applications. RESULTS: Here we present A-GAME (A GAlaxy suite for functional MEtagenomics), a web service incorporating state of the art tools and workflows for the analysis of eDNA sequence data. We illustrate the potential of A-GAME workflows using real functional metagenomics data, showing that they outperform alternative metagenomics assemblers. Dedicated tools available in A-GAME allow efficient analysis of pooled libraries and rapid identification of candidate genes, reducing sequencing costs and saving the need for laborious manual annotation. CONCLUSION: In conclusion, we believe A-GAME will constitute a valuable resource for the functional metagenomics community. A-GAME is publicly available at http://beaconlab.it/agame. PMID- 29329523 TI - Early commitment of cardiovascular autonomic modulation in Brazilian patients with congenital generalized lipodystrophy. AB - BACKGROUND: Metabolic abnormalities in congenital generalized lipodystrophy (CGL) are associated with microvascular complications. However, the evaluation of different types of neuropathy in these patients, including the commitment of cardiovascular autonomic modulation, is scarce. The objective of the present study was to determine the prevalence of cardiovascular autonomic neuropathy (CAN) in patients with CGL compared with individuals with type 1 diabetes and healthy subjects. METHODS: Ten patients with CGL, 20 patients with type 1 diabetes and 20 healthy subjects were included in the study. Controls were paired 1:2 for age, gender, BMI and pubertal stage. Heart rate variability (HRV) was analyzed using cardiovascular autonomic reflex tests, including postural hypotension test, Valsalva (VAL), respiratory (E/I) and orthostatic (30/15) coefficients, and spectral analysis of the HRV, determining very low (VLF), low (LF) and high (HF) frequencies components. The diagnosis of CAN was defined as the presence of at least two altered tests. RESULTS: CAN was detected in 40% of the CGL patients, 5% in type 1 diabetes patients and was absent in healthy individuals (p < 0.05). We observed a significant reduction in the E/I, VLF, LF and HF in CGL cases vs. type 1 diabetes and healthy individuals and lower levels of 30/15 and VAL in CGL vs. healthy individuals. A significant positive correlation was observed between leptin and 30/15 coefficient (r = 0.396; p = 0.036) after adjusting for insulin resistance and triglycerides. Autonomic cardiovascular tests were associated with HbA1c, HOMA-IR, triglycerides and albumin/creatinine ratio in CGL cases. CONCLUSIONS: We observed a high prevalence of CAN in young patients with CGL, suggesting that insulin resistance, hypertriglyceridemia and hypoleptinemia, may have been involved in early CAN development. Additional studies are needed to evaluate the role of leptinemia in the physiopathogenesis of the condition. PMID- 29329524 TI - Uncovering the evolutionary history of neo-XY sex chromosomes in the grasshopper Ronderosia bergii (Orthoptera, Melanoplinae) through satellite DNA analysis. AB - BACKGROUND: Neo-sex chromosome systems arose independently multiple times in evolution, presenting the remarkable characteristic of repetitive DNAs accumulation. Among grasshoppers, occurrence of neo-XY was repeatedly noticed in Melanoplinae. Here we analyzed the most abundant tandem repeats of R. bergii (2n = 22, neo-XY?) using deep Illumina sequencing and graph-based clustering in order to address the neo-sex chromosomes evolution. RESULTS: The analyses revealed ten families of satDNAs comprising about ~1% of the male genome, which occupied mainly C-positive regions of autosomes. Regarding the sex chromosomes, satDNAs were recorded within centromeric or interstitial regions of the neo-X chromosome and four satDNAs occurred in the neo-Y, two of them being exclusive (Rber248 and Rber299). Using a combination of probes we uncovered five well-defined cytological variants for neo-Y, originated by multiple paracentric inversions and satDNA amplification, besides fragmented neo-Y. These neo-Y variants were distinct in frequency between embryos and adult males. CONCLUSIONS: The genomic data together with cytogenetic mapping enabled us to better understand the neo sex chromosome dynamics in grasshoppers, reinforcing differentiation of neo-X and neo-Y and revealing the occurrence of multiple additional rearrangements involved in the neo-Y evolution of R. bergii. We discussed the possible causes that led to differences in frequency for the neo-Y variants between embryos and adults. Finally we hypothesize about the role of DNA satellites in R. bergii as well as putative historical events involved in the evolution of the R. bergii neo-XY. PMID- 29329525 TI - Reporting of heterogeneity of treatment effect in cohort studies: a review of the literature. AB - BACKGROUND: This article corresponds to a literature review and analyze how heterogeneity of treatment (HTE) is reported and addressed in cohort studies and to evaluate the use of the different measures to HTE analysis. METHODS: prospective cohort studies, in English language, measuring the effect of a treatment (pharmacological, interventional, or other) published among 119 core clinical journals (defined by the National Library of Medicine) in the last 16 years were selected in the following data source: Medline. One reviewer randomly sampled journal articles with 1: 1 stratification by journal type: high impact journals (the New England Journal of Medicine, JAMA, LANCET, Annals of Internal Medicine, BMJ and Plos Medicine) and low impact journal (the remaining journals) to identify 150 eligible studies. Two reviewers independently and in duplicate used standardized piloted forms to screen study reports for eligibility and to extract data. They also used explicit criteria to determine whether a cohort study reported HTE analysis. Logistic regression was used to examine the association of prespecified study characteristics with reporting versus not reporting of heterogeneity of treatment effect. RESULTS: One hundred fifty cohort studies were included of which 88 (58%) reported HTE analysis. High impact journals (Odds Ratio: 3.5, 95% CI: 1.78-7.5; P < 0.001), pharmacological studies (Odds Ratio: 0.26, 95% CI: 0.13-0.51; P < 0.001) and studies published after 2014 (Odds Ratio: 0.5, 95% CI: 0.25-0.97; P = 0.004) were associated with more frequent reporting of HTE. 27 (31%) studies which reported HTE used an interaction test. CONCLUSION: More than half cohort studies report some measure of heterogeneity of treatment effect. Prospective cohort studies published in high impact journals, with large sample size, or studying a pharmacological treatment are associated with more frequent HTE reporting. The source of funding was not associated with HTE reporting. There is a need for guidelines on how to perform HTE analyses in cohort studies. PMID- 29329527 TI - Emotional and cognitive experiences during the time of diagnosis and decision making following a prenatal diagnosis: a qualitative study of males presented with congenital heart defect in the fetus carried by their pregnant partner. AB - BACKGROUND: Expectant fathers consider the second-trimester obstetric ultrasound examination as an important step towards parenthood, but are ill prepared for a detection of a fetal anomaly. Inductive research is scarce concerning their experiences and needs for support. Consequently, the aim of this study was to explore the emotional and cognitive experiences, during the time of diagnosis and decision-making, among males presented with congenital heart defect in the fetus carried by their pregnant partner. METHODS: Twelve expectant fathers were consecutively recruited through two tertiary referral centers for fetal cardiology in Sweden, after they had been presented with a prenatal diagnosis of congenital heart defect in the fetus carried by their pregnant partner. The respondents were interviewed via telephone, and the interviews were analyzed using inductive qualitative content analysis. RESULTS: The respondents experienced an intense emotional shock in connection with detection. However, they set their own needs aside to attend to the supportive needs of their pregnant partner, and stressed the importance of an informed joint decision regarding whether to continue or terminate the pregnancy. When terminating the pregnancy, they experienced a loss of a wanted child, an emotionally intense termination procedure, needs of support neglected by professionals, and worries about the risk of recurrence in future pregnancies. When continuing the pregnancy, they tried to keep a positive attitude about the coming birth, but were simultaneously worried about the postnatal situation. CONCLUSIONS: The findings illustrate the importance of inclusive care and adequate follow-up routines for both expectant parents following a prenatal diagnosis. This includes the initial emotional shock, the decisional process, and depending on decision reached, the termination or continuation of the pregnancy. Expectant fathers presented with a fetal anomaly need adequate follow-up routines to address worries about risk of recurrence in future pregnancies and worries about the postnatal situation. PMID- 29329526 TI - Definitions, measurements and prevalence of fear of childbirth: a systematic review. AB - BACKGROUND: Fear of Childbirth (FOC) is a common problem affecting women's health and wellbeing, and a common reason for requesting caesarean section. The aims of this review were to summarise published research on prevalence of FOC in childbearing women and how it is defined and measured during pregnancy and postpartum, and to search for useful measures of FOC, for research as well as for clinical settings. METHODS: Five bibliographic databases in March 2015 were searched for published research on FOC, using a protocol agreed a priori. The quality of selected studies was assessed independently by pairs of authors. Prevalence data, definitions and methods of measurement were extracted independently from each included study by pairs of authors. Finally, some of the country rates were combined and compared. RESULTS: In total, 12,188 citations were identified and screened by title and abstract; 11,698 were excluded and full text of 490 assessed for analysis. Of these, 466 were excluded leaving 24 papers included in the review, presenting prevalence of FOC from nine countries in Europe, Australia, Canada and the United States. Various definitions and measurements of FOC were used. The most frequently-used scale was the W-DEQ with various cut-off points describing moderate, severe/intense and extreme/phobic fear. Different 3-, 4-, and 5/6 point scales and visual analogue scales were also used. Country rates (as measured by seven studies using W-DEQ with >=85 cut-off point) varied from 6.3 to 14.8%, a significant difference (chi-square = 104.44, d.f. = 6, p < 0.0001). CONCLUSIONS: Rates of severe FOC, measured in the same way, varied in different countries. Reasons why FOC might differ are unknown, and further research is necessary. Future studies on FOC should use the W-DEQ tool with a cut-off point of >=85, or a more thoroughly tested version of the FOBS scale, or a three-point scale measurement of FOC using a single question as 'Are you afraid about the birth?' In this way, valid comparisons in research can be made. Moreover, validation of a clinical tool that is more focussed on FOC alone, and easier than the longer W-DEQ, for women to fill in and clinicians to administer, is required. PMID- 29329528 TI - Transmission of measles among healthcare Workers in Hospital W, Xinjiang Autonomous Region, China, 2016. AB - BACKGROUND: As China approaches the elimination of measles, outbreaks of measles continue to occur. Healthcare workers (HCWs) are known to be at high risk of infection and transmission of measles virus. A measles outbreak occurred in a hospital in Xinjiang Uighur Autonomous Region of the People's Republic of China. We report an investigation of this outbreak and its implications for measles elimination and outbreak preparedness. METHODS: We conducted a retrospective search for measles cases using hospital records. Information on cases was collected by interview, and was used to determine epidemiological linkages. We surveyed HCWs to determine their demographic characteristics, disease history and vaccination status, and knowledge about measles. RESULTS: We identified 19 cases, ages 18 to 45 years, in Hospital W between December 2015 and January 2016; 14 were laboratory-confirmed, and 5 were epidemiologically linked. The primary case was a 25-year-old neurology department nurse who developed a rash on 22 December 2015 that was reported on 11 January 2016. She continued working and living with her workmates in a dormitory during her measles transmission period. Among the 19 infected HCWs, 2 had received a dose of measles-containing vaccine (MCV) before the outbreak, and 16 had unknown vaccination status. Outbreak response immunization activities were started on 8 January in a non-selective manner by offering vaccine regardless of vaccination history; 605(68%) of 890 HCWs were vaccinated. The HCW survey had a 73% response rate (646/890); 41% of HCWs reported that they had received MCV before outbreak, and 56% exhibited good knowledge of measles symptoms, transmission, complications, and vaccination. CONCLUSIONS: Low MCV coverage, low measles knowledge among HCWs, delayed reporting of measles cases, and absence of proper case management were associated with this outbreak. Training and vaccinating HCWs against measles are essential activities to prevent measles virus transmission among HCWs. PMID- 29329529 TI - Resilience and well-being of university nursing students in Hong Kong: a cross sectional study. AB - BACKGROUND: University nursing students experience higher levels of academic stress than those of other disciplines. Academic stress leads to psychological distress and has detrimental effects on well-being. The ability to overcome such adversity and learn to be stronger from the experience is regarded as resilience. Resilience is found to have an impact on learning experience, academic performance, course completion and, in the longer term, professional practice. Resilience and positive coping strategies can resist stress and improve personal well-being. However, the relationship between resilience and well-being remains unexplored in nursing students, which are significant attributes to their academic success and future career persistence. METHODS: The study was a cross sectional descriptive correlational design. Inclusion criteria for recruitment was students studying pre-registration nursing programmes at both undergraduate and postgraduate levels. The 10-item Connor-Davidson Resilience Scale (CD-RISC 10) and World Health Organisation-5 Well-Being Index (WHO-5) were used to measure resilience and psychological well-being respectively. RESULTS: A convenience sample of 678 university nursing students was recruited from a university. The mean score of CD-RISC-10 was 24.0. When comparing the resilience levels of undergraduate and postgraduate students, the total scores were found to be 23.8 and 24.9 respectively. There was a statistically significant difference between the groups (p = .020). With regard to perceived well-being, the mean score of WHO 5 was 15.5. There was no significant difference between undergraduates and postgraduates (p = .131). Bivariate analysis showed that self-reported resilience had a medium, positive correlation with perceived well-being (r = .378, p = .000), and senior students had significantly higher level of perceived well-being than junior students (16.0 vs 15.1, p = .003). Multivariable regression analysis on perceived well-being indicated that self-reported resilience emerged as a significant predictor of perceived well-being (regression coefficient B = 0.259; p < .001). CONCLUSIONS: The results demonstrate that nursing students with a high level of resilience have better perceived well-being, and the level of resilience of postgraduates was significantly higher than that of undergraduates. Therefore, educational strategies should be developed in the nursing curriculum and a supportive learning environment should be created to foster resilience in the students. PMID- 29329530 TI - Design and evaluation of a mobile application to assist the self-monitoring of the chronic kidney disease in developing countries. AB - BACKGROUND: The chronic kidney disease (CKD) is a worldwide critical problem, especially in developing countries. CKD patients usually begin their treatment in advanced stages, which requires dialysis and kidney transplantation, and consequently, affects mortality rates. This issue is faced by a mobile health (mHealth) application (app) that aims to assist the early diagnosis and self monitoring of the disease progression. METHODS: A user-centered design (UCD) approach involving health professionals (nurse and nephrologists) and target users guided the development process of the app between 2012 and 2016. In-depth interviews and prototyping were conducted along with healthcare professionals throughout the requirements elicitation process. Elicited requirements were translated into a native mHealth app targeting the Android platform. Afterward, the Cohen's Kappa coefficient statistics was applied to evaluate the agreement between the app and three nephrologists who analyzed test results collected from 60 medical records. Finally, eight users tested the app and were interviewed about usability and user perceptions. RESULTS: A mHealth app was designed to assist the CKD early diagnosis and self-monitoring considering quality attributes such as safety, effectiveness, and usability. A global Kappa value of 0.7119 showed a substantial degree of agreement between the app and three nephrologists. Results of face-to-face interviews with target users indicated a good user satisfaction. However, the task of CKD self-monitoring proved difficult because most of the users did not fully understand the meaning of specific biomarkers (e.g., creatinine). CONCLUSION: The UCD approach provided mechanisms to develop the app based on the real needs of users. Even with no perfect Kappa degree of agreement, results are satisfactory because it aims to refer patients to nephrologists in early stages, where they may confirm the CKD diagnosis. PMID- 29329531 TI - Chemical genomic guided engineering of gamma-valerolactone tolerant yeast. AB - BACKGROUND: Gamma valerolactone (GVL) treatment of lignocellulosic bomass is a promising technology for degradation of biomass for biofuel production; however, GVL is toxic to fermentative microbes. Using a combination of chemical genomics with the yeast (Saccharomyces cerevisiae) deletion collection to identify sensitive and resistant mutants, and chemical proteomics to monitor protein abundance in the presence of GVL, we sought to understand the mechanism toxicity and resistance to GVL with the goal of engineering a GVL-tolerant, xylose fermenting yeast. RESULTS: Chemical genomic profiling of GVL predicted that this chemical affects membranes and membrane-bound processes. We show that GVL causes rapid, dose-dependent cell permeability, and is synergistic with ethanol. Chemical genomic profiling of GVL revealed that deletion of the functionally related enzymes Pad1p and Fdc1p, which act together to decarboxylate cinnamic acid and its derivatives to vinyl forms, increases yeast tolerance to GVL. Further, overexpression of Pad1p sensitizes cells to GVL toxicity. To improve GVL tolerance, we deleted PAD1 and FDC1 in a xylose-fermenting yeast strain. The modified strain exhibited increased anaerobic growth, sugar utilization, and ethanol production in synthetic hydrolysate with 1.5% GVL, and under other conditions. Chemical proteomic profiling of the engineered strain revealed that enzymes involved in ergosterol biosynthesis were more abundant in the presence of GVL compared to the background strain. The engineered GVL strain contained greater amounts of ergosterol than the background strain. CONCLUSIONS: We found that GVL exerts toxicity to yeast by compromising cellular membranes, and that this toxicity is synergistic with ethanol. Deletion of PAD1 and FDC1 conferred GVL resistance to a xylose-fermenting yeast strain by increasing ergosterol accumulation in aerobically grown cells. The GVL-tolerant strain fermented sugars in the presence of GVL levels that were inhibitory to the unmodified strain. This strain represents a xylose fermenting yeast specifically tailored to GVL produced hydrolysates. PMID- 29329532 TI - Functionality of hospital information systems: results from a survey of quality directors at Turkish hospitals. AB - BACKGROUND: We aimed to determine availability of core Hospital Information Systems (HIS) functions implemented in Turkish hospitals and the perceived importance of these functions on quality and patient safety. METHODS: We surveyed quality directors (QDs) at civilian hospitals in the nation of Turkey. Data were collected via web survey using an instrument with 50 items describing core functionality of HIS. We calculated mean availability of each function, mean and median values of perceived impact on quality, and we investigated the relationship between availability and perceived importance. RESULTS: We received responses from 31% of eligible institutions, representing all major geographic regions of Turkey. Mean availability of 50 HIS functions was 65.6%, ranging from 19.6% to 97.4%. Mean importance score was 7.87 (on a 9-point scale) ranging from 7.13 to 8.41. Functions related to result management (89.3%) and decision support systems (52.2%) had the highest and lowest reported availability respectively. Availability and perceived importance were moderately correlated (r = 0.52). CONCLUSION: QDs report high importance of the HIS functions surveyed as they relate to quality and patient safety. Availability and perceived importance of HIS functions are generally correlated, with some interesting exceptions. These findings may inform future investments and guide policy changes within the Turkish healthcare system. Financial incentives, regulations around certified HIS, revisions to accreditation manuals, and training interventions are all policies which will help integrate HIS functions to support quality and patient safety in Turkish hospitals. PMID- 29329533 TI - Nutritional status of in-school children and its associated factors in Denkyembour District, eastern region, Ghana: comparing schools with feeding and non-school feeding policies. AB - BACKGROUND: Childhood malnutrition still remains a major public health problem impacting negatively on the academic aptitude of school-aged children (SAC) particularly in limited resource countries. The Government of Ghana in collaboration with the Dutch Government introduced the school feeding programme (SFP) to boost the nutritional status of SAC in the country. This study sought to compare the nutritional status of SAC enrolled in schools with the SFP and SAC enrolled in schools without the SFP in place for the purpose of identifying which group has the higher rate of malnutrition. METHODS: A multi-stage sampling was used to select 359 SAC between 5 and 12 years who are enrolled in primary one to six. Twelve public schools were selected, of which 6 schools benefit from the SFP and the other six do not. Anthropometric measurements were conducted for the subjects and SPSS version 20.0 was used for data entry and analysis. Chi square test was carried out to determine the difference between the two groups of schools. RESULTS: Of the total of 359 subjects, 55.1% were from schools that do not implement the SFP and 44.9% were from schools that implement the SFP. The prevalence of stunting among children in schools on the SFP was 16.2% compared with 17.2% among children in schools that do not implement the SFP. The prevalence of thinness was two times higher (9.3%) among children in schools on the SFP than in children in schools that do not implement the SFP (4.6%) (p = 0.028). The prevalence of overweight among children in schools on the SFP was 1.9% and 0.0% for children in schools that do not implement the SFP. Sub district, sex, age of pupil, area of residence and community type were significantly associated with stunting (p = 0.002), (p = 0.008), (p = 0.008), (p < 0.001) and (p = 0.007) respectively. CONCLUSION: Overweight and thinness were higher among children in schools on SFP than in children in schools without SFP. An evaluation of the implementation of the school feeding programme is recommended for future studies. PMID- 29329534 TI - A large-scale study of a poultry trading network in Bangladesh: implications for control and surveillance of avian influenza viruses. AB - BACKGROUND: Since its first report in 2007, avian influenza (AI) has been endemic in Bangladesh. While live poultry marketing is widespread throughout the country and known to influence AI dissemination and persistence, trading patterns have not been described. The aim of this study is to assess poultry trading practices and features of the poultry trading networks which could promote AI spread, and their potential implications for disease control and surveillance. Data on poultry trading practices was collected from 849 poultry traders during a cross sectional survey in 138 live bird markets (LBMs) across 17 different districts of Bangladesh. The quantity and origins of traded poultry were assessed for each poultry type in surveyed LBMs. The network of contacts between farms and LBMs resulting from commercial movements of live poultry was constructed to assess its connectivity and to identify the key premises influencing it. RESULTS: Poultry trading practices varied according to the size of the LBMs and to the type of poultry traded. Industrial broiler chickens, the most commonly traded poultry, were generally sold in LBMs close to their production areas, whereas ducks and backyard chickens were moved over longer distances, and their transport involved several intermediates. The poultry trading network composed of 445 nodes (73.2% were LBMs) was highly connected and disassortative. However, the removal of only 5.6% of the nodes (25 LBMs with the highest betweenness scores), reduced the network's connectedness, and the maximum size of output and input domains by more than 50%. CONCLUSIONS: Poultry types need to be discriminated in order to understand the way in which poultry trading networks are shaped, and the level of risk of disease spread that these networks may promote. Knowledge of the network structure could be used to target control and surveillance interventions to a small number of LBMs. PMID- 29329535 TI - Measurement of the potential geographic accessibility from call to definitive care for patient with acute stroke. AB - BACKGROUND: The World Health Organization refers to stroke, the second most frequent cause of death in the world, in terms of pandemic. Present treatments are only effective within precise time windows. Only 10% of thrombolysis patients are eligible. Late assessment of the patient resulting from admission and lack of knowledge of the symptoms is the main explanation of lack of eligibility. METHODS: The aim is the measurement of the time of access to treatment facilities for stroke victims, using ambulances (firemen ambulances or EMS ambulances) and private car. The method proposed analyses the potential geographic accessibility of stroke care infrastructure in different scenarios. The study allows better considering of the issues inherent to an area: difficult weather conditions, traffic congestion and failure to respect the distance limits of emergency transport. RESULTS: Depending on the scenario, access times vary considerably within the same commune. For example, between the first and the second scenario for cities in the north of Rhone county, there is a 10 min difference to the nearest Primary Stroke Center (PSC). For the first scenario, 90% of the population is 20 min away of the PSC and 96% for the second scenario. Likewise, depending on the modal vector (fire brigade or emergency medical service), overall accessibility from the emergency call to admission to a Comprehensive Stroke Center (CSC) can vary by as much as 15 min. CONCLUSIONS: The setting up of the various scenarios and modal comparison based on the calculation of overall accessibility makes this a new method for calculating potential access to care facilities. It is important to take into account the specific pathological features and the availability of care facilities for modelling. This method is innovative and recommendable for measuring accessibility in the field of health care. This study makes possible to highlight the patients' extension of care delays. Thus, this can impact the improvement of patient care and rethink the healthcare organization. Stroke is addressed here but it is applicable to other pathologies. PMID- 29329536 TI - Dietary flavonoid intake in older adults: how many days of dietary assessment are required and what is the impact of seasonality? AB - BACKGROUND: Within- and between-person variation in nutrient intake is well established, but little is known about variability in dietary flavonoid intake, including the effect of seasonality. METHODS: Within- and between-individual variability of flavonoid intake, and intake of flavonoid subclasses was examined in older adults (n = 79; mean age 70.1 y (range: 60y-80y)), using three separate 4-day weighed food records (WFR) collected approximately 4 months apart. The effects of seasonality were also examined. Mixed-effects linear regression models were used to estimate within- and between-individual variance components for flavonoids and subclasses. The number of days of dietary assessment required for a high level of hypothetical accuracy was calculated from variance ratios. RESULTS: Within- and between-individual variability was high for flavonoid intake, and intake of flavonoid subclasses, with variance ratios > 1. It was calculated that six days of WFR data are required for total flavonoid intake, and between 6 and 10 days was required for flavonoid subclasses. There was no effect of seasonality for total flavonoid intake or intake of flavonoid subclasses, with the exception that flavan-3-ol and flavanone intakes which were relatively low in summer, and in summer and winter, respectively. CONCLUSION: While the effects of seasonality on total flavonoid intake may be small, within- and between individual variation associated with flavonoid intake assessment appears to be substantial across 12 days of WFR data in older adults. It is recommended that a minimum of 6 days of weighed food records are collected to minimise the impact of within- and between-individual variability on total flavonoid intake assessments in this population. PMID- 29329538 TI - Peripheral blood gene expression signatures which reflect smoking and aspirin exposure are associated with cardiovascular events. AB - BACKGROUND: Cardiovascular disease and its sequelae are major causes of global mortality, and better methods are needed to identify patients at risk for future cardiovascular events. Gene expression analysis can inform on the molecular underpinnings of risk factors for cardiovascular events. Smoking and aspirin have known opposing effects on platelet reactivity and MACE, however their effects on each other and on MACE are not well described. METHODS: We measured peripheral blood gene expression levels of ITGA2B, which is upregulated by aspirin and correlates with platelet reactivity on aspirin, and a 5 gene validated smoking gene expression score (sGES) where higher expression correlates with smoking status, in participants from the previously reported PREDICT trial (NCT 00500617). The primary outcome was a composite of death, myocardial infarction, and stroke/TIA (MACE). We tested whether selected genes were associated with MACE risk using logistic regression. RESULTS: Gene expression levels were determined in 1581 subjects (50.5% female, mean age 60.66 +/-11.46, 18% self-reported smokers); 3.5% of subjects experienced MACE over 12 months follow-up. Elevated sGES and ITGA2B expression were each associated with MACE (odds ratios [OR] =1.16 [95% CI 1.10-1.31] and 1.42 [95% CI 1.00-1.97], respectively; p < 0.05). ITGA2B expression was inversely associated with self-reported smoking status and the sGES (p < 0.001). A logistic regression model combining sGES and ITGA2B showed better performance (AIC = 474.9) in classifying MACE subjects than either alone (AIC = 479.1, 478.2 respectively). CONCLUSION: Gene expression levels associated with smoking and aspirin are independently predictive of an increased risk of cardiovascular events. PMID- 29329537 TI - The HIV-1 accessory proteins Nef and Vpu downregulate total and cell surface CD28 in CD4+ T cells. AB - BACKGROUND: The HIV-1 accessory proteins Nef and Vpu alter cell surface levels of multiple host proteins to modify the immune response and increase viral persistence. Nef and Vpu can downregulate cell surface levels of the co stimulatory molecule CD28, however the mechanism of this function has not been completely elucidated. RESULTS: Here, we provide evidence that Nef and Vpu decrease cell surface and total cellular levels of CD28. Moreover, using inhibitors we implicate the cellular degradation machinery in the downregulation of CD28. We shed light on the mechanisms of CD28 downregulation by implicating the Nef LL165 and DD175 motifs in decreasing cell surface CD28 and Nef DD175 in decreasing total cellular CD28. Moreover, the Vpu LV64 and S52/56 motifs were required for cell surface CD28 downregulation, while, unlike for CD4 downregulation, Vpu W22 was dispensable. The Vpu S52/56 motif was also critical for Vpu-mediated decreases in total CD28 protein level. Finally, the ability of Vpu to downregulate CD28 is conserved between multiple group M Vpu proteins and infection with viruses encoding or lacking Nef and Vpu have differential effects on activation upon stimulation. CONCLUSIONS: We report that Nef and Vpu downregulate cell surface and total cellular CD28 levels. We identified inhibitors and mutations within Nef and Vpu that disrupt downregulation, shedding light on the mechanisms utilized to downregulate CD28. The conservation and redundancy between the abilities of two HIV-1 proteins to downregulate CD28 highlight the importance of this function, which may contribute to the development of latently infected cells. PMID- 29329539 TI - State-dependent domicile leaving rates in Anopheles gambiae. AB - BACKGROUND: Transmission of Plasmodium greatly depends on the foraging behaviour of its mosquito vector (Anopheles spp.). The accessibility of blood hosts and availability of plant sugar (i.e., nectar) sources, together with mosquito energy state, have been shown to modulate blood feeding (and thus biting rates) of anopheline mosquitoes. In this study, the influence of mosquito starvation status and availability of nectar on the decision of female Anopheles gambiae mosquitoes to leave a bed net-protected blood host was examined. METHODS: Two small-scale mesocosm experiments were conducted using female mosquitoes starved for 0, 24 or 48 h, that were released inside a specially constructed hut with mesh-sealed exits and containing a bed net-protected human volunteer. Floral cues were positioned on one side of the hut or the other. Several biologically plausible exponential decay models were developed that characterized the emigration rates of mosquitoes from the huts. These varied from simple random loss to leaving rates dependent upon energy state and time. These model fits were evaluated by examining their fitted parameter estimates and comparing Akaike information criterion. RESULTS: Starved mosquitoes left domiciles at a higher rate than recently fed individuals however, there was no difference between 1- and 2-day starved mosquitoes. There was also no effect of floral cue placement. The best fitting emigration model was one based on both mosquito energy state and time whereas the worst fitting model was one based on the assumption of constant leaving rates, independent of time and energy state. CONCLUSIONS: The results confirm that mosquito-leaving behaviour is energy-state dependent, and provide some of the first evidence of state-dependent domicile emigration in An. gambiae, which may play a role in malarial transmission dynamics. Employment of simple, first-principle, mechanistic models can be very useful to our understanding of why and how mosquitoes leave domiciles. PMID- 29329540 TI - Children with albinism in African regions: their rights to 'being' and 'doing'. AB - BACKGROUND: Albinism is an inherited condition with a relatively high prevalence in populations throughout sub-Saharan Africa. People with oculocutaneous albinism have little or no pigment in their hair, skin and eyes; thus they are visually impaired and extremely sensitive to the damaging effect of the sun on their skin. Aside from the health implications of oculocutaneous albinism, there are also significant sociocultural risks. The impacts of albinism are particularly serious in areas that associate albinism with legend and folklore, leading to stigmatisation and discrimination. In regions of Africa those with albinism may be assaulted and sometimes killed for their body parts for use in witchcraft related rites or to make 'lucky' charms. There is a dearth of research on the psychosocial aspects of albinism and particularly on how albinism impacts on the everyday lives of people with albinism. DISCUSSION: There is a growing recognition and acceptance in Africa that people with albinism should be considered disabled. Thomas's social-relational model of disability proposes it is essential to understand both the socio-structural barriers and restrictions that exclude disabled people (barriers to doing); and the social processes and practices which can negatively affect their psycho-emotional wellbeing (barriers to being). In this article, we combine a social model of disability with discussion on human rights to address the lacuna surrounding the psychosocial and daily experiences of people with albinism. CONCLUSION: Through using this combined framework we conclude that the rights of people with albinism in some regions of Africa are not being enacted. Our debate highlights the need to develop a holistic concept of rights for children and young people with albinism which sees human rights as indivisible. We illuminate some of the specific ways in which the lives of children with albinism could be improved by addressing 'barriers to being' and 'barriers to doing', at the heart of which requires a shift in attitude and action to address discrimination. PMID- 29329541 TI - A role for endothelial nitric oxide synthase in intestinal stem cell proliferation and mesenchymal colorectal cancer. AB - BACKGROUND: Nitric oxide (NO) has been highlighted as an important agent in cancer-related events. Although the inducible nitric oxide synthase (iNOS) isoform has received most attention, recent studies in the literature indicate that the endothelial isoenzyme (eNOS) can also modulate different tumor processes including resistance, angiogenesis, invasion, and metastasis. However, the role of eNOS in cancer stem cell (CSC) biology and mesenchymal tumors is unknown. RESULTS: Here, we show that eNOS was significantly upregulated in VilCre ERT2 Apc fl/+ and VilCre ERT2 Apc fl/fl mouse intestinal tissue, with intense immunostaining in hyperproliferative crypts. Similarly, the more invasive VilCre ERT2 Apc fl/+ Pten fl/+ mouse model showed an overexpression of eNOS in intestinal tumors whereas this isoform was not expressed in normal tissue. However, none of the three models showed iNOS expression. Notably, when 40 human colorectal tumors were classified into different clinically relevant molecular subtypes, high eNOS expression was found in the poor relapse-free and overall survival mesenchymal subtype, whereas iNOS was absent. Furthermore, Apc fl/fl organoids overexpressed eNOS compared with wild-type organoids and NO depletion with the scavenger carboxy-PTIO (c-PTIO) decreased the proliferation and the expression of stem-cell markers, such as Lgr5, Troy, Vav3, and Slc14a1, in these intestinal organoids. Moreover, specific NO depletion also decreased the expression of CSC-related proteins in human colorectal cancer cells such as beta catenin and Bmi1, impairing the CSC phenotype. To rule out the contribution of iNOS in this effect, we established an iNOS-knockdown colorectal cancer cell line. NO-depleted cells showed a decreased capacity to form tumors and c-PTIO treatment in vivo showed an antitumoral effect in a xenograft mouse model. CONCLUSION: Our data support that eNOS upregulation occurs after Apc loss, emerging as an unexpected potential new target in poor-prognosis mesenchymal colorectal tumors, where NO scavenging could represent an interesting therapeutic alternative to targeting the CSC subpopulation. PMID- 29329542 TI - Relative validity of a web-based food frequency questionnaire for Danish adolescents. AB - BACKGROUND: With increased focus on dietary intake among youth and risk of diseases later in life, it is of importance, prior to assessing diet-disease relationships, to examine the validity of the dietary assessment tool. This study's objective was to evaluate the relative validity of a self-administered web-based FFQ among Danish children aged 12 to 15 years. METHODS: From a nested sub-cohort within the Danish National Birth Cohort, 124 adolescents participated. Four weeks after completion of the FFQ, adolescents were invited to complete three telephone-based 24HRs; administered 4 weeks apart. Mean or median intakes of nutrients and food groups estimated from the FFQ were compared with the mean of 3x24HRs. To assess the level of ranking we calculated the proportion of correctly classified into the same quartile, and the proportion of misclassified (into the opposite quartile). Spearman's correlation coefficients and de attenuated coefficients were calculated to assess agreement between the FFQ and 24HRs. RESULTS: The mean percentage of all food groups, for adolescents classified into the same and opposite quartile was 35 and 7.5%, respectively. Mean Spearman's correlation was 0.28 for food groups and 0.35 for nutrients, respectively. Adjustment for energy and within-person variation in the 24HRs had little effect on the magnitude of the correlations for food groups and nutrients. We found overestimation by the FFQ compared with the 24HRs for fish, fruits, vegetables, oils and dressing and underestimation by the FFQ for meat/poultry and sweets. Median intake of beverages, dairy, bread, cereals, the mean total energy and carbohydrate intake did not differ significantly between the two methods. CONCLUSION: The relative validity of the FFQ compared with the 3x24HRs showed that the ranking ability differed across food groups and nutrients with best ranking for estimated intake of dairy, fruits, and oils and dressing. Larger variation was observed for fish, sweets and vegetables. For nutrients, the ranking ability was acceptable for fatty acids and iron. When evaluating estimates from the FFQ among Danish adolescents these findings should be considered. PMID- 29329543 TI - STAT3-induced lncRNA HAGLROS overexpression contributes to the malignant progression of gastric cancer cells via mTOR signal-mediated inhibition of autophagy. AB - BACKGROUND: Long noncoding RNAs (lncRNAs) are an important class of functional regulators involved in human cancers development, including gastric cancer (GC). Studying aberrantly expressed lncRNAs may provide us with new insights into the occurrence and development of gastric cancer by acting as oncogenes or tumor suppressors. In this study, we aim to examine the expression pattern of lncRNA HAGLROS in GC and its clinical significance as well as its biological role in tumor progression. METHODS: Bioinformatics analysis and qRT-PCR were performed to detect the relative expression of HAGLROS in GC tissues and cell lines. Gain or loss of function approaches were used to investigate the biological functions of HAGLROS. The effect of HAGLROS on proliferation was evaluated by MTT, colony formation assay and nude mouse xenograft model. Wound healing and Transwell assays were used to study the invasion and migration of GC cells. FISH, RIP, RNA seq, Luciferase report assays, RNA pulldown and Western blot were fulfilled to measure molecular mechanisms. Results are shown as means +/- S.D. and differences were tested for significance using Student's t-test (two-tailed). RESULTS: We screened out HAGLROS, whose expression was significantly increased and correlated with outcomes of GC patients by publicly available lncRNAs expression profiling and integrating analyses. Exogenous down-regulation of HAGLROS expression significantly suppressed the cell proliferation, invasion and migration. Mechanistic investigations showed that HAGLROS was a direct target of transcriptional factor STAT3. Moreover, HAGLROS knockdown decreased mTOR expression and increased autophagy-related genes ATG9A and ATG9B expression. Further investigation showed that HAGLROS regulated mTOR signals in two manners. In the one hand, HAGLROS competitively sponged miR-100-5p to increase mTOR expression by antagonizing miR-100-5p-mediated mTOR mRNA inhibition. On the other hand, HAGLROS interacted with mTORC1 components to activate mTORC1 signaling pathway which was known to be an important negative signal of autophagy. Here activation of mTORC1 signaling pathway by HAGLROS inhibited autophagy, thereby promoted excessive proliferation and maintained the malignant phenotype of GC cells. CONCLUSION: The present study demonstrates that HAGLROS overexpression contributes to GC development and poor prognosis and will be a target for GC therapy and further develop as a potential prognostic biomarker. PMID- 29329544 TI - The importance of drug checking outside the context of nightlife in Slovenia. AB - BACKGROUND: The main purpose of the research was to evaluate the implementation of the drug checking service in Slovenia and to obtain the opinion of users included in harm reduction programmes for high-risk drug users and of drug users in nightlife settings on drug checking, the reasons for drug checking, and their attitude towards adulterants in the drugs that they use. METHODS: The two final unrepresentative research samples included 102 respondents from harm reduction programmes and 554 respondents from the online sample. The questionnaire was designed based on analysis of the interviews conducted with professionals from the programmes, who took part in the drug checking project, and based on previous research on drug use in nightlife. RESULTS: The main findings related to users' opinions on the drug checking service are that users from both samples perceive drug checking as a contribution to risk reduction and that they find providing information for them about the harmful adulterants and substances that they use very important. In addition, users from both samples considered accessibility of the drug checking service as very important and would be in favour of brief counselling at the collection of the drug sample. One of the salient differences between samples was that nightlife drug users found it more important to recognise substances in the drugs that they use. CONCLUSIONS: Drug users from two different samples attach a relatively high importance to the drug checking service, and they consider it to be a contribution to risk reduction. As well as drug users in nightlife settings, high-risk drug users also perceive the drug checking service to be important, which is relevant in the phase of planning drug checking services outside the context of nightlife and for the act of incorporating these services into contemporary harm reduction policy. PMID- 29329545 TI - Use of epidemiological and entomological tools in the control and elimination of malaria in Ethiopia. AB - Malaria is the leading public health problem in Ethiopia where over 75% of the land surface is at risk with varying intensities depending on altitude and season. Although the mortality because of malaria infection has declined much during the last 15-20 years, some researchers worry that this success story may not be sustainable. Past notable achievements in the reduction of malaria disease burden could be reversed in the future. To interrupt, or even to eliminate malaria transmission in Ethiopia, there is a need to implement a wide range of interventions that include insecticide-treated bed nets, indoor residual spraying, improved control of residual malaria transmission, and improved diagnostics, enhanced surveillance, and methods to deal with the emergence of resistance both to drugs and to insecticides. Developments during the past years with increasing awareness about the role of very low levels of malaria prevalence can sustain infections, may also demand that tools not used in the routine control efforts to reduce or eliminate malaria, should now be made available in places where malaria transmission occurs. PMID- 29329546 TI - Whole-genome sequencing of genotype VI Newcastle disease viruses from formalin fixed paraffin-embedded tissues from wild pigeons reveals continuous evolution and previously unrecognized genetic diversity in the U.S. AB - BACKGROUND: Newcastle disease viruses (NDV) are highly contagious and cause disease in both wild birds and poultry. A pigeon-adapted variant of genotype VI NDV, often termed pigeon paramyxovirus 1, is commonly isolated from columbids in the United States and worldwide. Complete genomic characterization of these genotype VI viruses circulating in wild columbids in the United States is limited, and due to the genetic variability of the virus, failure of rapid diagnostic detection has been reported. Therefore, in this study, formalin-fixed paraffin-embedded (FFPE) samples were subjected to next-generation sequencing (NGS) to identify and characterize these circulating viruses, providing valuable genetic information. NGS enables multiple samples to be deep-sequenced in parallel. When used on FFPE samples, this methodology allows for retrospective studies of infectious organisms. METHODS: FFPE wild pigeon tissue samples (kidney, liver and spleen) from 10 mortality events in the U.S. between 2010 and 2016 were analyzed using NGS to detect and sequence NDV genomes from randomly amplified total RNA. Results were compared to the previously published immunohistochemistry (IHC) results conducted on the same samples. Additionally, phylogenetic analyses were conducted on the complete and partial fusion gene and complete genome coding sequences. RESULTS: Twenty-three out of 29 IHC-positive FFPE pigeon samples were identified as positive for NDV by NGS. Positive samples produced an average genome coverage of 99.6% and an average median depth of 199. A previously described sub-genotype (VIa) and a novel sub-genotype (VIn) of NDV were identified as the causative agent of 10 pigeon mortality events in the U.S. from 2010 to 2016. The distribution of these viruses from the North American lineages match the distribution of the Eurasian collared-doves and rock pigeons in the U.S. CONCLUSIONS: This work reports the first successful evolutionary study using deep sequencing of complete NDV genomes from FFPE samples of wild bird origin. There are at least two distinct U.S. lineages of genotype VI NDV maintained in wild pigeons that are continuously evolving independently from each other and have no evident epidemiological connections to viruses circulating abroad. These findings support the hypothesis that columbids are serving as reservoirs of virulent NDV in the U.S. PMID- 29329547 TI - Microfluidic co-culture of pancreatic tumor spheroids with stellate cells as a novel 3D model for investigation of stroma-mediated cell motility and drug resistance. AB - BACKGROUND: Pancreatic stellate cells (PSCs), a major component of the tumor microenvironment in pancreatic cancer, play roles in cancer progression as well as drug resistance. Culturing various cells in microfluidic (microchannel) devices has proven to be a useful in studying cellular interactions and drug sensitivity. Here we present a microchannel plate-based co-culture model that integrates tumor spheroids with PSCs in a three-dimensional (3D) collagen matrix to mimic the tumor microenvironment in vivo by recapitulating epithelial mesenchymal transition and chemoresistance. METHODS: A 7-channel microchannel plate was prepared using poly-dimethylsiloxane (PDMS) via soft lithography. PANC 1, a human pancreatic cancer cell line, and PSCs, each within a designated channel of the microchannel plate, were cultured embedded in type I collagen. Expression of EMT-related markers and factors was analyzed using immunofluorescent staining or Proteome analysis. Changes in viability following exposure to gemcitabine and paclitaxel were measured using Live/Dead assay. RESULTS: PANC-1 cells formed 3D tumor spheroids within 5 days and the number of spheroids increased when co-cultured with PSCs. Culture conditions were optimized for PANC-1 cells and PSCs, and their appropriate interaction was confirmed by reciprocal activation shown as increased cell motility. PSCs under co-culture showed an increased expression of alpha-SMA. Expression of EMT-related markers, such as vimentin and TGF-beta, was higher in co-cultured PANC-1 spheroids compared to that in mono-cultured spheroids; as was the expression of many other EMT-related factors including TIMP1 and IL-8. Following gemcitabine exposure, no significant changes in survival were observed. When paclitaxel was combined with gemcitabine, a growth inhibitory advantage was prominent in tumor spheroids, which was accompanied by significant cytotoxicity in PSCs. CONCLUSIONS: We demonstrated that cancer cells grown as tumor spheroids in a 3D collagen matrix and PSCs co-cultured in sub-millimeter proximity participate in mutual interactions that induce EMT and drug resistance in a microchannel plate. Microfluidic co-culture of pancreatic tumor spheroids with PSCs may serve as a useful model for studying EMT and drug resistance in a clinically relevant manner. PMID- 29329548 TI - The cost of a pediatric neurocritical care program for traumatic brain injury: a retrospective cohort study. AB - BACKGROUND: Inpatient care for children with severe traumatic brain injury (sTBI) is expensive, with inpatient charges averaging over $70,000 per case (Hospital Inpatient, Children Only, National Statistics. Diagnoses- clinical classification software (CCS) principal diagnosis category 85 coma, stupor, and brain damage, and 233 intracranial injury. Diagnoses by Aggregate charges [ https://hcupnet.ahrq.gov/#setup ]). This ranks sTBI in the top quartile of pediatric conditions with the greatest inpatient costs (Hospital Inpatient, Children Only, National Statistics. Diagnoses- clinical classification software (CCS) principal diagnosis category 85 coma, stupor, and brain damage, and 233 intracranial injury. Diagnoses by Aggregate charges [ https://hcupnet.ahrq.gov/#setup ]). The Brain Trauma Foundation developed sTBI intensive care guidelines in 2003, with revisions in 2012 (Kochanek, Carney, et. al. PCCM 3:S1-S2, 2012). These guidelines have been widely disseminated, and are associated with improved health outcomes (Pineda, Leonard. et. al. LN 12:45-52, 2013), yet research on the cost of associated hospital care is limited. The objective of this study was to assess the costs of providing hospital care to sTBI patients through a guideline-based Pediatric Neurocritical Care Program (PNCP) implemented at St. Louis Children's Hospital, a pediatric academic medical center in the Midwest United States. METHODS: This is a retrospective cohort study. We used multi-level regression to estimate pre-/post-implementation effects of the PNCP program on inflation adjusted total cost of in-hospital sTBI care. The study population included 58 pediatric patient discharges in the pre PNCP implementation group (July 15, 1999 - September 17, 2005), and 59 post implementation patient discharges (September 18, 2005 - January 15, 2012). RESULTS: Implementation of the PNCP was associated with a non-significant difference in the cost of care between the pre- and post-implementation periods (ebeta = 1.028, p = 0.687). CONCLUSIONS: Implementation of the PNCP to support delivery of guideline-based care for children with sTBI did not change the total per-patient cost of in-hospital care. A key strength of this study was its use of hospital cost data rather than charges. Future research should consider the longitudinal post-hospitalization costs of this approach to sTBI care. PMID- 29329549 TI - Near-infrared dye marking for thoracoscopic resection of small-sized pulmonary nodules: comparison of percutaneous and bronchoscopic injection techniques. AB - BACKGROUND: Minimally invasive video-assisted thoracoscopic surgery for small sized pulmonary nodules is challenging, and image-guided preoperative localisation is required. Near-infrared indocyanine green fluorescence is capable of deep tissue penetration and can be distinguished regardless of the background colour of the lung; thus, indocyanine green has great potential for use as a near infrared fluorescent marker in video-assisted thoracoscopic surgery. METHODS: Thirty-seven patients with small-sized pulmonary nodules, who were scheduled to undergo video-assisted thoracoscopic wedge resection, were enrolled in this study. A mixture of diluted indocyanine green and iopamidol was injected into the lung parenchyma as a marker, using either computed tomography-guided percutaneous or bronchoscopic injection techniques. Indications and limitations of the percutaneous and bronchoscopic injection techniques for marking nodules with indocyanine green fluorescence were examined and compared. RESULTS: In the computed tomography-guided percutaneous injection group (n = 15), indocyanine green fluorescence was detected in 15/15 (100%) patients by near-infrared thoracoscopy. A small pneumothorax occurred in 3/15 (20.0%) patients, and subsequent marking was unsuccessful after a pneumothorax occurred. In the bronchoscopic injection group (n = 22), indocyanine green fluorescence was detected in 21/22 (95.5%) patients. In 6 patients who underwent injection marking at 2 different lesion sites, 5/6 (83.3%) markers were successfully detected. CONCLUSION: Either computed tomography-guided percutaneous or bronchoscopic injection techniques can be used to mark pulmonary nodules with indocyanine green fluorescence. Indocyanine green is a safe and easily detectable fluorescent marker for video-assisted thoracoscopic surgery. Furthermore, the bronchoscopic injection approach enables surgeons to mark multiple lesion areas with less risk of causing a pneumothorax. TRIAL REGISTRATION: UMIN-CTR R000027833 accepted by ICMJE. Registered 5 January 2013. PMID- 29329550 TI - Systematic quantitative analysis of H2A and H2B variants by targeted proteomics. AB - BACKGROUND: Histones organize DNA into chromatin through a variety of processes. Among them, a vast diversity of histone variants can be incorporated into chromatin and finely modulate its organization and functionality. Classically, the study of histone variants has largely relied on antibody-based assays. However, antibodies have a limited efficiency to discriminate between highly similar histone variants. RESULTS: In this study, we established a mass spectrometry-based analysis to address this challenge. We developed a targeted proteomics method, using selected reaction monitoring or parallel reaction monitoring, to quantify a maximum number of histone variants in a single multiplexed assay, even when histones are present in a crude extract. This strategy was developed on H2A and H2B variants, using 55 peptides corresponding to 25 different histone sequences, among which a few differ by a single amino acid. The methodology was then applied to mouse testis extracts in which almost all histone variants are expressed. It confirmed the abundance profiles of several testis-specific histones during successive stages of spermatogenesis and the existence of predicted H2A.L.1 isoforms. This methodology was also used to explore the over-expression pattern of H2A.L.1 isoforms in a mouse model of male infertility. CONCLUSIONS: Our results demonstrate that targeted proteomics is a powerful method to quantify highly similar histone variants and isoforms. The developed method can be easily transposed to the study of human histone variants, whose abundance can be deregulated in various diseases. PMID- 29329551 TI - Efficacy and safety of combined treatment of miniscalpel acupuncture and non steroidal anti-inflammatory drugs: an assessor-blinded randomized controlled pilot study. AB - BACKGROUND: Chronic neck pain is a common musculoskeletal disease during the lifespan of an individual. With an increase in dependence on computer technology, the prevalence of chronic neck pain is expected to rise and this can lead to socioeconomic problems. We have designed the current pilot study to evaluate the efficacy and safety of miniscalpel acupuncture treatment combined with non steroidal anti-inflammatory drugs (NSAIDs) in patients with chronic neck pain. METHODS: This seven-week clinical trial has been designed as an assessor-blinded, randomized controlled trial with three parallel arms. Thirty-six patients will be recruited and randomly allocated to three treatment groups: miniscalpel acupuncture treatment; NSAIDs; and miniscalpel acupuncture treatment combined with NSAIDs. Patients in the miniscalpel acupuncture and combined treatment groups will receive three sessions of miniscalpel acupuncture over a three-week period. Patients in the NSAIDs and combined treatment groups will receive zaltoprofen (one oral tablet, three times a day for three weeks). Primary and secondary outcomes will be measured at weeks 0 (baseline), 1, 2, 3 (primary end point), and 7 (four weeks after treatment completion) using the visual analogue scale and the Neck Disability Index, EuroQol 5-dimension questionnaire, and Patients' Global Impression of Change scale, respectively. Adverse events will also be recorded. DISCUSSION: This pilot study will provide a basic foundation for a future large-scale trial as well as information about the feasibility of miniscalpel acupuncture treatment combined with NSAIDs for chronic neck pain. TRIAL REGISTRATION: Korean Clinical Research Information Service registry, KCT0002258 . Registered on 9 March 2017. PMID- 29329552 TI - Correction to: Linkage, whole genome sequence, and biological data implicate variants in RAB10 in Alzheimer's disease resilience. AB - CORRECTION: The original version of this article [1] unfortunately contained a typographical error. The 'Alzheimer's Disease Neuroimaging Initiative' was erroneously included as 'Alzheimer's Disease Neuroimaging Initative' in the author list of the article. PMID- 29329554 TI - Correction to: Detection and full genome characterization of two beta CoV viruses related to Middle East respiratory syndrome from bats in Italy. AB - CORRECTION: After Publication of the article [1], it has been brought to our attention that an author's name has been spelt incorrectly. The correct spelling should be "Massimo Ciccozzi", but it was previously included as "Massimo Cicozzi". The original version has now been revised to reflect this. PMID- 29329553 TI - Inhibitors of the integrase-transportin-SR2 interaction block HIV nuclear import. AB - BACKGROUND: Combination antiretroviral therapy efficiently suppresses HIV replication in infected patients, transforming HIV/AIDS into a chronic disease. Viral resistance does develop however, especially under suboptimal treatment conditions such as poor adherence. As a consequence, continued exploration of novel targets is paramount to identify novel antivirals that do not suffer from cross-resistance with existing drugs. One new promising class of targets are HIV protein-cofactor interactions. Transportin-SR2 (TRN-SR2) is a beta-karyopherin that was recently identified as an HIV-1 cofactor. It has been implicated in nuclear import of the viral pre-integration complex and was confirmed as a direct binding partner of HIV-1 integrase (IN). Nevertheless, consensus on its mechanism of action is yet to be reached. RESULTS: Here we describe the development and use of an AlphaScreen-based high-throughput screening cascade for small molecule inhibitors of the HIV-1 IN-TRN-SR2 interaction. False positives and nonspecific protein-protein interaction inhibitors were eliminated through different counterscreens. We identified and confirmed 2 active compound series from an initial screen of 25,608 small molecules. These compounds significantly reduced nuclear import of fluorescently labeled HIV particles. CONCLUSIONS: Alphascreen based high-throughput screening can allow the identification of compounds representing a novel class of HIV inhibitors. These results corroborate the role of the IN-TRN-SR2 interaction in nuclear import. These compounds represent the first in class small molecule inhibitors of HIV-1 nuclear import. PMID- 29329555 TI - Exercise during and after neoadjuvant rectal cancer treatment (the EXERT trial): study protocol for a randomized controlled trial. AB - BACKGROUND: Standard treatment for locally advanced rectal cancer includes 5-6 weeks of neoadjuvant chemoradiotherapy (NACRT) followed by total mesorectal excision 6-8 weeks later. NACRT improves local disease control and surgical outcomes but also causes side effects including fatigue, diarrhea, hand-foot syndrome, and physical deconditioning that may impede quality of life (QoL), treatment completion, treatment response, and long-term prognosis. Interventions to improve treatment outcomes and manage side effects that are safe, tolerable and low-cost are highly desirable. Exercise has been shown to improve some of these outcomes in other cancer patient groups but no study to date has examined the potential benefits (and harms) of exercise training during and after NACRT for rectal cancer. METHODS/DESIGN: The Exercise During and After Neoadjuvant Rectal Cancer Treatment (EXERT) trial is a single-center, prospective, two-armed, phase II randomized controlled trial designed to test the preliminary efficacy of exercise training in this clinical setting and to further evaluate its feasibility and safety. Participants will be 60 rectal cancer patients scheduled to receive long-course NACRT followed by total mesorectal excision. Participants will be randomly assigned to exercise training or usual care. Participants in the exercise training group will be asked to complete three supervised, high intensity interval training sessions/week during NACRT and >= 150 min/week of unsupervised, moderate-to-vigorous-intensity, continuous exercise training after NACRT prior to surgery. Participants in the usual care group will be asked not to increase their exercise from baseline. Assessments will be completed pre NACRT, post NACRT, and pre surgery. The primary endpoint will be cardiorespiratory fitness (VO2 peak) at the post-NACRT time point assessed by a graded exercise test. Secondary endpoints will include functional fitness assessed by the Senior's Fitness Test, QoL assessed by the European Organisation of Research and Treatment of Cancer, and symptom management assessed by the M.D. Anderson Symptom Inventory. Exploratory clinical endpoints will include treatment toxicities, treatment completion, treatment response, and surgical complications. DISCUSSION: If the preliminary findings of EXERT are positive, additional research will be warranted to confirm whether exercise is an innovative treatment to maintain QoL, manage side effects, and/or improve treatment outcomes in rectal cancer patients. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03082495 . Registered on 9 February, 2017. PMID- 29329556 TI - Cancer immunotherapy beyond immune checkpoint inhibitors. AB - Malignant cells have the capacity to rapidly grow exponentially and spread in part by suppressing, evading, and exploiting the host immune system. Immunotherapy is a form of oncologic treatment directed towards enhancing the host immune system against cancer. In recent years, manipulation of immune checkpoints or pathways has emerged as an important and effective form of immunotherapy. Agents that target cytotoxic T lymphocyte-associated molecule-4 (CTLA-4), programmed cell death receptor-1 (PD-1), and programmed cell death ligand-1 (PD-L1) are the most widely studied and recognized. Immunotherapy, however, extends beyond immune checkpoint therapy by using new molecules such as chimeric monoclonal antibodies and antibody drug conjugates that target malignant cells and promote their destruction. Genetically modified T cells expressing chimeric antigen receptors are able to recognize specific antigens on cancer cells and subsequently activate the immune system. Native or genetically modified viruses with oncolytic activity are of great interest as, besides destroying malignant cells, they can increase anti-tumor activity in response to the release of new antigens and danger signals as a result of infection and tumor cell lysis. Vaccines are also being explored, either in the form of autologous or allogenic tumor peptide antigens, genetically modified dendritic cells that express tumor peptides, or even in the use of RNA, DNA, bacteria, or virus as vectors of specific tumor markers. Most of these agents are yet under development, but they promise to be important options to boost the host immune system to control and eliminate malignancy. In this review, we have provided detailed discussion of different forms of immunotherapy agents other than checkpoint-modifying drugs. The specific focus of this manuscript is to include first-in-human phase I and phase I/II clinical trials intended to allow the identification of those drugs that most likely will continue to develop and possibly join the immunotherapeutic arsenal in a near future. PMID- 29329557 TI - One-year risk of serious infection in patients treated with certolizumab pegol as compared with other TNF inhibitors in a real-world setting: data from a national U.S. rheumatoid arthritis registry. AB - BACKGROUND: Registry studies provide a valuable source of comparative safety data for tumor necrosis factor inhibitors (TNFi) used in rheumatoid arthritis (RA), but they are subject to channeling bias. Comparing safety outcomes without accounting for channeling bias can lead to inaccurate comparisons between TNFi prescribed at different stages of the disease. In the present study, we examined the incidence of serious infection and other adverse events during certolizumab pegol (CZP) use vs other TNFi in a U.S. RA cohort before and after using a methodological approach to minimize channeling bias. METHODS: Patients with RA enrolled in the Corrona registry, aged >= 18 years, initiating CZP or other TNFi (etanercept, adalimumab, golimumab, or infliximab) after May 1, 2009 (n = 6215 initiations), were followed for <= 12 months. A propensity score (PS) model was used to control for baseline characteristics associated with the probability of receiving CZP vs other TNFi. Incidence rate ratios (IRRs) of serious infectious events (SIEs), malignancies, and cardiovascular events (CVEs) in the CZP group vs other TNFi group were calculated with 95% CIs, before and after PS matching. RESULTS: Patients were more likely to initiate CZP later in the course of therapy than those initiating other TNFi. CZP initiators (n = 975) were older and had longer disease duration, more active disease, and greater disability than other TNFi initiators (n = 5240). After PS matching, there were no clinically important differences between CZP (n = 952) and other TNFi (n = 952). Before PS matching, CZP was associated with a greater incidence of SIEs (IRR 1.53 [95% CI 1.13, 2.05]). The risk of SIEs was not different between groups after PS matching (IRR 1.26 [95% CI 0.84, 1.90]). The 95% CI of the IRRs for malignancies or CVEs included unity, regardless of PS matching, suggesting no difference in risk between CZP and other TNFi. CONCLUSIONS: After using PS matching to minimize channeling bias and compare patients with a similar likelihood of receiving CZP or other TNFi, the 1-year risk of SIEs, malignancies, and CVEs was not distinguishable between the two groups. PMID- 29329558 TI - Quality of life and problems associated with obturators of patients with maxillectomies. AB - BACKGROUND: Maxillary defects predispose patients to different undesirable effects. The aim of this study was to assess the quality of life (QoL) of patients with maxillary defects (acquired/congenital) wearing obturators. METHODS: The study comprised 30 patients aged between 16 and 78 years. Interviews were conducted to collect information pertaining to patients; sociodemographic, self-reported function of obturator using Obturator Functioning Scale (OFS), self evaluation of general health using Visual Analogue Scale (VAS), radiotherapy treatment, salivary gland removal, reconstructive surgery, neck dissection and length of time obturators were worn. Clinical examination included type of maxillectomy, Aramany classification of the defect, and evaluation of obturator function using the Kapur retention and stability scoring system. RESULT: Quality of life was affected significantly by marital status (P = 0.026). Married patients had better quality of life 61.3%, followed by divorced patients 38.8%, widowed 37.3% and the least QoL was detected in single patients 36.5%. Significant association between the type of maxillectomy and QoL was detected (P = 0.002). Retention of obturator prosthesis had a highly significant association with QoL (P < 0.001). Type of maxillectomy had a significant relation with obturator retention (P = 0.005). Stability had a significant correlation with QoL (P = 0.022). Obturator wearers who were treated with radiotherapy had lower QoL than those who were not treated with radiotherapy. CONCLUSION: Rehabilitation of patients with maxillary defects using obturator prosthesis is an appropriate and not invasive treatment modality. Results support that good obturators contribute to a better life quality. PMID- 29329559 TI - SImplification of Medications Prescribed to Long-tErm care Residents (SIMPLER): study protocol for a cluster randomised controlled trial. AB - BACKGROUND: Complex medication regimens are highly prevalent in residential aged care facilities (RACFs). Strategies to reduce unnecessary complexity may be valuable because complex medication regimens can be burdensome for residents and are costly in terms of nursing time. The aim of this study is to investigate application of a structured process to simplify medication administration in RACFs. METHODS: SImplification of Medications Prescribed to Long-tErm care Residents (SIMPLER) is a non-blinded, matched-pair, cluster randomised controlled trial of a single multidisciplinary intervention to simplify medication regimens. Trained study nurses will recruit English-speaking, permanent residents from eight South Australian RACFs. Medications taken by residents in the intervention arm will be assessed once using a structured tool (the Medication Regimen Simplification Guide for Residential Aged CarE) to identify opportunities to reduce medication regimen complexity (e.g. by administering medications at the same time, or through the use of longer-acting or combination formulations). Residents in the comparison group will receive routine care. Participants will be followed for up to 36 months after study entry. The primary outcome measure will be the total number of charted medication administration times at 4 months after study entry. Secondary outcome measures will include time spent administering medications, medication incidents, resident satisfaction, quality of life, falls, hospitalisation and mortality. Individual-level analyses that account for clustering will be undertaken to determine the impact of the intervention on the study outcomes. DISCUSSION: Ethical approval has been obtained from the Monash University Human Research Ethics Committee and the aged care provider organisation. Research findings will be disseminated through conference presentations and peer-reviewed publications. SIMPLER will enable an improved understanding of the burden of medication use in RACFs and quantify the impact of regimen simplification on a range of outcomes important to residents and care providers. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry, ACTRN12617001060336 . Retrospectively registered on 20 July 2017. PMID- 29329562 TI - Granular cell tumors of the tongue: fibroma or schwannoma. AB - BACKGROUND: Granular cell tumors are benign lesions that typically occur in the oral cavity, but can also be found in other sites. However, the characteristics of these tumors are unclear. Thus, the present study aimed to investigate the immunohistological characteristics of these tumors of the tongue. METHODS: Seven patients were treated for granular cell tumors of the tongue at our institution during 2003-2017. Paraffin-embedded specimens were available for all cases; thus, retrospective immunohistochemical analyses were performed. RESULTS: All cases exhibited cytoplasmic acidophilic granules in the muscle layer of the tumor. Both the normal nerve cells and tumor cells also stained positive for PGP9.5, NSE, calretinin, and GFAP. A nucleus of tumor cells was typically present in the margin. The PAS-positive granules were also positive for CD68 (a lysozyme glycoprotein marker). Various sizes of nerve fibers were observed in each tumor, and granular cells were observed in the nerve fibers of a representative case. CONCLUSIONS: Based on our immunohistological findings, granular cell tumors may be derived from Schwann cells, and the presence of CD68 indicates that Wallerian degeneration after nerve injury may be a contributor to tumor formation. Thus, a safe surgical margin is needed to detect the infiltrative growth of granular cell tumors. PMID- 29329561 TI - Strongyloides stercoralis and hookworm co-infection: spatial distribution and determinants in Preah Vihear Province, Cambodia. AB - BACKGROUND: Strongyloides stercoralis and hookworm are two soil-transmitted helminths (STH) that are highly prevalent in Cambodia. Strongyloides stercoralis causes long-lasting infections and significant morbidity but is largely neglected, while hookworm causes the highest public health burden among STH. The two parasites have the same infection route, i.e. skin penetration. The extent of co-distribution, which could result in potential high co-morbidities, is unknown in highly endemic settings like Cambodia. The aim of this study was to predict the spatial distribution of S. stercoralis-hookworm co-infection risk and to investigate determinants of co-infection in Preah Vihear Province, North Cambodia. METHODS: A cross-sectional survey was conducted in 2010 in 60 villages of Preah Vihear Province. Diagnosis was performed on two stool samples, using combined Baermann technique and Koga agar culture plate for S. stercoralis and Kato-Katz technique for hookworm. Bayesian multinomial geostatistical models were used to assess demographic, socioeconomic, and behavioural determinants of S. stercoralis-hookworm co-infection and to predict co-infection risk at non surveyed locations. RESULTS: Of the 2576 participants included in the study, 48.6% and 49.0% were infected with S. stercoralis and hookworm, respectively; 43.8% of the cases were co-infections. Females, preschool aged children, adults aged 19-49 years, and participants who reported regularly defecating in toilets, systematically boiling drinking water and having been treated with anthelmintic drugs had lower odds of co-infection. While S. stercoralis infection risk did not appear to be spatially structured, hookworm mono-infection and co-infection exhibited spatial correlation at about 20 km. Co-infection risk was positively associated with longer walking distances to a health centre and exhibited a small clustering tendency. The association was only partly explained by climatic variables, suggesting a role for underlying factors, such as living conditions and remoteness. CONCLUSIONS: Both parasites were ubiquitous in the province, with co-infections accounting for almost half of all cases. The high prevalence of S. stercoralis calls for control measures. Despite several years of school-based de worming programmes, hookworm infection levels remain high. Mebendazole efficacy, as well as coverage of and compliance to STH control programmes should be investigated. PMID- 29329560 TI - Overexpression of the double homeodomain protein DUX4c interferes with myofibrillogenesis and induces clustering of myonuclei. AB - BACKGROUND: Facioscapulohumeral muscular dystrophy (FSHD) is associated with DNA hypomethylation at the 4q35 D4Z4 repeat array. Both the causal gene DUX4 and its homolog DUX4c are induced. DUX4c is immunodetected in every myonucleus of proliferative cells, while DUX4 is present in only 1/1000 of myonuclei where it initiates a gene deregulation cascade. FSHD primary myoblasts differentiate into either atrophic or disorganized myotubes. DUX4 expression induces atrophic myotubes and associated FSHD markers. Although DUX4 silencing normalizes the FSHD atrophic myotube phenotype, this is not the case for the disorganized phenotype. DUX4c overexpression increases the proliferation rate of human TE671 rhabdomyosarcoma cells and inhibits their differentiation, suggesting a normal role during muscle differentiation. METHODS: By gain- and loss-of-function experiments in primary human muscle cells, we studied the DUX4c impact on proliferation, differentiation, myotube morphology, and FSHD markers. RESULTS: In primary myoblasts, DUX4c overexpression increased the staining intensity of KI67 (a proliferation marker) in adjacent cells and delayed differentiation. In differentiating cells, DUX4c overexpression led to the expression of some FSHD markers including beta-catenin and to the formation of disorganized myotubes presenting large clusters of nuclei and cytoskeletal defects. These were more severe when DUX4c was expressed before the cytoskeleton reorganized and myofibrils assembled. In addition, endogenous DUX4c was detected at a higher level in FSHD myotubes presenting abnormal clusters of nuclei and cytoskeletal disorganization. We found that the disorganized FSHD myotube phenotype could be rescued by silencing of DUX4c, not DUX4. CONCLUSION: Excess DUX4c could disturb cytoskeletal organization and nuclear distribution in FSHD myotubes. We suggest that DUX4c up-regulation could contribute to DUX4 toxicity in the muscle fibers by favoring the clustering of myonuclei and therefore facilitating DUX4 diffusion among them. Defining DUX4c functions in the healthy skeletal muscle should help to design new targeted FSHD therapy by DUX4 or DUX4c inhibition without suppressing DUX4c normal function. PMID- 29329563 TI - PM2.5-induced oxidative stress increases intercellular adhesion molecule-1 expression in lung epithelial cells through the IL-6/AKT/STAT3/NF-kappaB dependent pathway. AB - BACKGROUND: Epidemiological studies have shown that ambient air pollution is closely associated with increased respiratory inflammation and decreased lung function. Particulate matters (PMs) are major components of air pollution that damages lung cells. However, the mechanisms remain to be elucidated. This study examines the effects of PMs on intercellular adhesion molecule-1 (ICAM-1) expression and the related mechanisms in vitro and in vivo. RESULT: The cytotoxicity, reactive oxygen species (ROS) generation, and monocyte adherence to A549 cells were more severely affected by treatment with O-PMs (organic solvent extractable fraction of SRM1649b) than with W-PMs (water-soluble fraction of SRM1649b). We observed a significant increase in ICAM-1 expression by O-PMs, but not W-PMs. O-PMs also induced the phosphorylation of AKT, p65, and STAT3. Pretreating A549 cells with N-acetyl cysteine (NAC), an antioxidant, attenuated O PMs-induced ROS generation, the phosphorylation of the mentioned kinases, and the expression of ICAM-1. Furthermore, an AKT inhibitor (LY294002), NF-kappaB inhibitor (BAY11-7082), and STAT3 inhibitor (Stattic) significantly down regulated O-PMs-induced ICAM-1 expression as well as the adhesion of U937 cells to epithelial cells. Interleukin-6 (IL-6) was the most significantly changed cytokine in O-PMs-treated A549 cells according to the analysis of the cytokine antibody array. The IL-6 receptor inhibitor tocilizumab (TCZ) and small interfering RNA for IL-6 significantly reduced ICAM-1 secretion and expression as well as the reduction of the AKT, p65, and STAT3 phosphorylation in O-PMs-treated A549 cells. In addition, the intratracheal instillation of PMs significantly increased the levels of the ICAM-1 and IL-6 in lung tissues and plasma in WT mice, but not in IL-6 knockout mice. Pre-administration of NAC attenuated those PMs-induced adverse effects in WT mice. Furthermore, patients with chronic obstructive pulmonary disease (COPD) had higher plasma levels of ICAM-1 and IL-6 compared to healthy subjects. CONCLUSION: These results suggest that PMs increase ICAM-1 expression in pulmonary epithelial cells in vitro and in vivo through the IL-6/AKT/STAT3/NF-kappaB signaling pathway. PMID- 29329564 TI - Phytochemical analysis, antioxidant and anti-inflammatory potential of FERETIA APODANTHERA root bark extracts. AB - BACKGROUND: Inflammation has been implicated in many disorders, including cancer and available therapies elicit adverse effects. Plants of the family Rubiaceae have shown potency against inflammation. The anti-inflammatory and anti-oxidant potential of Feretia apodanthera was investigated in this study to evaluate its effectiveness. METHODS: The phytochemical, antioxidant and anti-inflammatory potential of root bark (n-Hexane, diethyl ether, ethanol and aqueous) extracts of Feretia apodanthera was investigated in this study. The extracts were subjected to various chemical tests for phytochemical constituents; their antioxidant activity was determined using in-vitro DPPH radical scavenging activity assay and their anti-inflammatory activity was determined using carrageenan induced paw oedema model. FTIR and GCMS analysis was done to determine the compounds present. RESULTS: Phytochemical screening of extracts revealed the presence of unsaturated steroids, triterpenes, cardiac glycosides, tannins, saponin and alkaloids. Vitamin C had a median inhibitory concentration (IC50) of 0.038 mg/ml which was lower than IC50 of all the extracts. Of all the extracts, ethanol extract had the lowest IC50 (0.044 mg/ml) which is comparable to vitamin C. Anti-inflammatory studies showed that the inflammation inhibition potential of 400 mg/kg body weight of all the extracts was significantly lower (p < 0.05) than the standard ketoprofen (50 mg/kg) at the first three hours but significantly higher (p < 0.05) at the fourth hour. At the fifth hour, the inflammation inhibition potential of diethyl ether, ethanol and aqueous extracts were significantly higher (p < 0.05) than that of the standard. FTIR analysis showed the presence of ketones, amines, alkenes and carboxylic groups. GCMS analysis revealed compounds that are potential anti-inflammatory agents. CONCLUSION: This study revealed that extracts of Feretia apodanthera possess anti-inflammatory effects against right hind paw oedema of albino rats and can act as an effective antioxidant. PMID- 29329565 TI - Correction to: Current research into brain barriers and the delivery of therapeutics for neurological diseases: a report on CNS barrier congress London, UK, 2017. AB - After publication of the article [1], it has been brought to our attention that there are some errors in the formatting of names in the final version of the article. PMID- 29329566 TI - General and erosive tooth wear of 16-year-old adolescents in Kuantan, Malaysia: prevalence and association with dental caries. AB - BACKGROUND: The objective of this study was to determine the prevalence and severity of general tooth wear (GTW), i.e. tooth wear irrespective of etiology and erosive tooth wear (ETW), i.e. tooth wear predominantly due to erosion; and also to investigate the relationship between ETW and dental caries experience in 16-year-old adolescents in Kuantan, Malaysia. METHODS: A multi-staged cluster sampling method was employed. A total of 598 16-year-old adolescents participated in this study. Participants' demographic profile was assessed through a self administered questionnaire. Clinical examinations were carried out under standardized conditions by a single examiner. The level of GTW was recorded using the modified Smith and Knight's Tooth Wear Index (TWI) whilst ETW were recorded using the Basic Erosive Wear Examination (BEWE) index. This index was developed to record clinical findings and assist in the decision-making process for the management of erosive tooth wear. Dental caries was recorded using the D3MFT index whereby D3 denotes obvious dental decay into dentine detected visually. RESULTS: The prevalence of GTW, ETW and dental caries, i.e. percentage of individuals found to have at least one lesion, was 99.8%, 45.0% and 27.8% respectively. Two thirds of affected teeth with GTW were observed to have a TWI score of 1 whereas almost all of the affected teeth with ETW had a BEWE score of 2. The mean D3MFT was 0.62 (95% CI 0.50, 0.73) with Decayed (D) teeth being the largest component, mean D3T was 0.36 (95% CI 0.30, 0.43). There was no significant association between socio-demographic factors and prevalence of ETW. Logistic regression analysis also showed no significant relationship between the prevalence of ETW and D3MFT (p > 0.05). CONCLUSIONS: Almost all adolescents examined had GTW but they were mainly early lesions. However, nearly half were found to have ETW of moderate severity (BEWE score 2). No significant relationship between the occurrence of erosive tooth wear and caries was observed in this population. PMID- 29329567 TI - Modified Pilates as an adjunct to standard physiotherapy care for urinary incontinence: a mixed methods pilot for a randomised controlled trial. AB - BACKGROUND: Urinary incontinence (UI) is a distressing condition affecting at least 5 million women in England and Wales. Traditionally, physiotherapy for UI comprises pelvic floor muscle training, but although evidence suggests this can be effective it is also recognised that benefits are often compromised by patient motivation and commitment. In addition, there is increasing recognition that physical symptoms alone are poor indicators of the impact of incontinence on individuals' lives. Consequently, more holistic approaches to the treatment of UI, such as Modified Pilates (MP) have been recommended. This study aimed to provide preliminary findings about the effectiveness of a 6-week course of MP classes as an adjunct to standard physiotherapy care for UI, and to test the feasibility of a randomised controlled trial (RCT) design. METHODS: The study design was a single centre pilot RCT, plus qualitative interviews. 73 women referred to Women's Health Physiotherapy Services for UI at Colchester Hospital University NHS Foundation Trust were randomly assigned to two groups: a 6-week course of MP classes in addition to standard physiotherapy care (intervention) or standard physiotherapy care only (control). Main outcome measures were self reported UI, quality of life and self-esteem at baseline (T1), completion of treatment (T2), and 5 months after randomisation (T3). Qualitative interviews were conducted with a subgroup at T2 and T3. Due to the nature of the intervention blinding of participants, physiotherapists and researchers was not feasible. RESULTS: Post-intervention data revealed a range of benefits for women who attended MP classes and who had lower symptom severity at baseline: improved self-esteem (p = 0.032), decreased social embarrassment (p = 0.026) and lower impact on normal daily activities (p = 0.025). In contrast, women with higher symptom severity showed improvement in their personal relationships (p = 0.017). Qualitative analysis supported these findings and also indicated that MP classes could positively influence attitudes to exercise, diet and wellbeing. CONCLUSIONS: A definitive RCT is feasible but will require a large sample size to inform clinical practice. TRIAL REGISTRATION: ISRCTN74075972 Registered 12/12/12 (Retrospectively registered). PMID- 29329568 TI - Prospective longitudinal quality of life and survival outcomes in patients with advanced infiltrative hepatocellular carcinoma and portal vein thrombosis treated with Yttrium-90 radioembolization. AB - BACKGROUND: To determine the effect of Yttrium-90 (Y90) radioembolization on health-related quality of life (HRQOL) and its effect on overall survival advanced, unresectable infiltrative hepatocellular carcinoma (HCC) patients with concurrent portal vein thrombosis (PVT). METHODS: Consecutive patients with unresectable infiltrative HCC and PVT were recruited. The Short-Form 36 (SF-36) questionnaire was used to assess HRQOL for consecutive patients treated with glass-based Y90 based on a prospective phase II trial. MR imaging was used to determine tumor progression every 3 months post-treatment. Overall survival (OS) from treatment and time to progression (TTP) was analyzed using Kaplan-Meier estimation and log-rank test. RESULTS: Thirty patients were treated and followed for 17.4 months; physical and mental component summary scores (PCS & MCS) remained unchanged at one, three, and six months. While no difference was observed in baseline SF-36 scores for patients with prolonged TTP (>=4 months) and OS (>= 6 months), corresponding 1-month PCS were significantly higher than those with TTP < 4 months and OS < 6 months. At 1 month, patients with normalized Physical Function (PF), Role Physical (RP) and PCS within 2 standard deviations (SD) of US normalized baseline scores had a significantly prolonged median OS (15.7 vs. 3.7 months; p < 0.001) and TTP (12.4 vs. 1.8 mo; p < 0.001) compared those with physical component scores greater than 2SD below normalized US population values. CONCLUSION: Y90 radioembolization for HCC demonstrated long term preservation of HRQOL. Lower baseline HRQOL scores were predictive of poorer OS. Early (1 month post-treatment) significant decreases in PCS were independent predictors of poorer OS and TTP. TRIAL REGISTRATION: ClinicalTrials.gov identifier NCT01556282 , registered March 16, 2012. PMID- 29329569 TI - Effect of total number of harvested lymph nodes on survival outcomes after curative resection for gastric adenocarcinoma: findings from an eastern high volume gastric cancer center. AB - BACKGROUND: Greater lymph node retrieval in gastric cancer improves staging accuracy and may improve survival from increased clearance of nodal micrometastasis. This retrospective cohort study investigated if more lymph nodes removed in gastric cancer increases survival and if such effect is stage-specific due to differential risks of nodal micrometastasis and systemic disease. METHODS: The prospectively collected database of curatively resected gastric cancer patients in National Cancer Center, South Korea between 2000 and 2009 was reviewed. Disease-free survival (DFS) and overall survival (OS) for all patients and for each stage according to number of lymph nodes examined (1-30, 31-45, > 45) were analyzed. RESULTS: Of 4049 patients, 96.6% and 98.4% underwent D2 (perigastric and extragastric) lymphadenectomy and had >= 15 lymph nodes examined. Mean number of nodes examined was 43. Five-year OS & DFS rates were 83.3% and 80.7%. Patients with > 45 nodes examined had significantly lower DFS (p = 0.002) and OS (p = 0.007) compared to those with 1-30 and 31-45 nodes. However, proportion of patients with > 45 nodes examined increased with stage (p = 0.0005). Per stage, there was no significant difference in DFS and OS according to number of nodes examined except for stage IIIA favoring more nodes (p = 0.018 and p = 0.044, respectively). Similar trend was seen in stage IIB. Number of examined nodes positively correlated with number of pathologic nodes for all patients (r = 0.144, p < .001) but not for stage IIB and IIIA. Number of nodes examined was a significant survival predictor in stage IIIA. CONCLUSION: Greater lymph node harvest showed improved survival in intermediate-stage gastric cancer. PMID- 29329570 TI - Exophthalmos in a young woman with no graves' disease - a case report of IgG4 related orbitopathy. AB - BACKGROUND: Immunoglobulin G4-related disease (IgG4-rd) is characterized by lymphoplasmacytic infiltration and tissue fibrosis. Orbital manifestations of IgG4-rd may include unilateral or bilateral proptosis, cicatricial extraocular muscle myopathy, orbital inflammation and pain which may mimic ophthalmic Graves' disease. CASE PRESENTATION: A 25-year-old woman has been referred to the endocrinology clinic, 4 months after delivery, with suspected Graves' orbitopathy. She has had bronchial asthma and recurrent skin rashes of unknown aetiology for the last 10 years and was treated for dacryoadenitis with steroid containing eye drops 5 years ago. During pregnancy she developed eyelid swelling. After delivery, eyelid redness and retrobulbar pain evolved. Proptosis was demonstrated by Hertel's exophthalmometry. Orbital magnetic resonance imaging showed enlarged lateral and superior rectus muscles in both orbits. Thyroid function tests were in the normal range and no thyroid stimulating hormone (TSH) receptor autoantibodies were present. The eye muscle involvement pattern raised suspicion, and the high IgG4 level with positive histology of the lacrimal gland confirmed the diagnosis of immunoglobulin G4-related orbitopathy. Rapid improvement was observed following oral methylprednisolone. CONCLUSIONS: IgG4 related orbitopathy may mimic Graves' orbitopathy. Euthyroid patients with no TSH receptor autoantibodies should be evaluated for immunoglobulin G4-related orbitopathy. Once IgG4-related orbitopathy is proven, other manifestations of IgG4-related disease have to be searched for; lifelong follow-up is warranted. PMID- 29329571 TI - Environmental exposures and fetal growth: the Haifa pregnancy cohort study. AB - BACKGROUND: The developing fetus is susceptible to environmental insults. Studying the effects of environmental exposures on fetal growth is essential for understanding the causal pathway between prenatal exposures and pregnancy outcomes. Here we describe the Haifa Pregnancy Cohort Study (HPCS) and discuss challenges and opportunities in applying "big data" paradigm. METHODS: Maccabi Healthcare Services (MHS), is the second largest Israeli health maintenance organization (HMO) providing care services to two million beneficiaries. The HPCS cohort potentially includes ~750,000 newborns born between 1998 and 2017. We will estimate daily exposures to air pollutants, temperature and greenness, using satellite-based data and models. We hypothesize that residents of Haifa have higher exposures to environmental pollutants and that in pregnant women this higher exposure is associated with poorer fetal growth. We will evaluate outcomes such as birth-weight, head-circumference and gestational age at birth. We will adjust for pregnancy complications such as pre-eclampsia and gestational diabetes and parental variables, such as maternal weight, age and smoking habits as potential confounders. In addition, we will conduct a multi-tiered field study, nested within this population, among 150 pregnant women residing in two geographical regions-one in the polluted Haifa area, and one in a relatively unpolluted area in central Israel. Blood and urinary samples will be collected, as well as personal and indoor exposure to air pollution. DISCUSSION: Evaluating environmental exposures of pregnant women and assessing in utero growth over the course of the pregnancy during different exposure windows, is of great scientific and public health interest. Recent advances in data collection and analysis pose great promise to provide insights into contribution of environment to the health of the developing fetus, but also pose major challenges and pitfalls, such as data management, proper statistical framework and integration of data in the population-based study and selectiveness in the nested field study. Yet the continuing follow-up of the study cohort, integrating data from different services, health-promotion, and eventually, application later in real life of our main promises. Our study aims to meet these challenges and to provide evidence of the environmental exposures associated with fetal growth. PMID- 29329572 TI - Socio-demographic and lifestyle determinants of dietary patterns in French speaking Switzerland, 2009-2012. AB - BACKGROUND: Food intake is a complex behaviour which can be assessed using dietary patterns. Our aim was to characterize dietary patterns and associated factors in French-speaking Switzerland. METHODS: Cross-sectional study conducted between 2009 and 2012 in the city of Lausanne, Switzerland, including 4372 participants (54% women, 57.3 +/- 10.3 years). Food consumption was assessed using a validated food frequency questionnaire. Dietary patterns were assessed by principal components analysis. RESULTS: Three patterns were identified: "Meat & fries"; "Fruits & Vegetables" and "Fatty & sugary". The "Meat & fries" pattern showed the strongest correlations with total and animal protein and cholesterol carbohydrates, dietary fibre and calcium. The "Fruits & Vegetables" pattern showed the strongest correlations with dietary fibre, carotene and vitamin D. The "Fatty & sugary" pattern showed the strongest correlations with total energy and saturated fat. On multivariate analysis, male gender, low educational level and sedentary status were positively associated with the "Meat & fries" and the "Fatty & sugary" patterns, and negatively associated with the "Fruits & Vegetables" pattern. Increasing age was inversely associated with the "Meat & fries" pattern; smoking status was inversely associated with the "Fruits & Vegetables" pattern. Being born in Portugal or Spain was positively associated with the "Meat & fries" and the "Fruits & Vegetables" patterns. Increasing body mass index was positively associated with the "Meat & fries" pattern and inversely associated with the "Fatty & sugary" pattern. CONCLUSIONS: Three dietary patterns, one healthy and two unhealthy, were identified in the Swiss population. Several associated modifiable behaviours were identified; the information on socio- demographic determinants allows targeting of the most vulnerable groups in the context of public health interventions. PMID- 29329573 TI - Female genital mutilation/cutting in Italy: an enhanced estimation for first generation migrant women based on 2016 survey data. AB - BACKGROUND: Migration flows of women from Female Genital Mutilation/Cutting practicing countries have generated a need for data on women potentially affected by Female Genital Mutilation/Cutting. This paper presents enhanced estimates for foreign-born women and asylum seekers in Italy in 2016, with the aim of supporting resource planning and policy making, and advancing the methodological debate on estimation methods. METHODS: The estimates build on the most recent methodological development in Female Genital Mutilation/Cutting direct and indirect estimation for Female Genital Mutilation/Cutting non-practicing countries. Direct estimation of prevalence was performed for 9 communities using the results of the survey FGM-Prev, held in Italy in 2016. Prevalence for communities not involved in the FGM-Prev survey was estimated using to the 'extrapolation-of-FGM/C countries prevalence data method' with corrections according to the selection hypothesis. RESULTS: It is estimated that 60 to 80 thousand foreign-born women aged 15 and over with Female Genital Mutilation/Cutting are present in Italy in 2016. We also estimated the presence of around 11 to 13 thousand cut women aged 15 and over among asylum seekers to Italy in 2014-2016. Due to the long established presence of female migrants from some practicing communities Female Genital Mutilation/Cutting is emerging as an issue also among women aged 60 and over from selected communities. Female Genital Mutilation/Cutting is an additional source of concern for slightly more than 60% of women seeking asylum. CONCLUSIONS: Reliable estimates on Female Genital Mutilation/Cutting at country level are important for evidence-based policy making and service planning. This study suggests that indirect estimations cannot fully replace direct estimations, even if corrections for migrant socioeconomic selection can be implemented to reduce the bias. PMID- 29329574 TI - Microcephaly epidemic related to the Zika virus and living conditions in Recife, Northeast Brazil. AB - BACKGROUND: Starting in August 2015, there was an increase in the number of cases of neonatal microcephaly in Northeast Brazil. These findings were identified as being an epidemic of microcephaly related to Zika virus (ZIKV) infection. The present study aims to analyse the spatial distribution of microcephaly cases in Recife (2015-2016), which is in Northeast Brazil, and its association with the living conditions in this city. METHODS: This was an ecological study that used data from reported cases of microcephaly from the State Health Department of Pernambuco (August 2015 to July 2016). The basic spatial unit of analysis was the 94 districts of Recife. The case definition of microcephaly was: neonates with a head circumference of less than the cut-off point of -2 standard deviations below the mean value from the established Fenton growth curve. As an indicator of the living conditions of the 94 districts, the percentage of heads of households with an income of less than twice the minimum wage was calculated. The districts were classified into four homogeneous strata using the K-means clustering algorithm. We plotted the locations of each microcephaly case over a layer of living conditions. RESULTS: During the study period, 347 microcephaly cases were reported, of which 142 (40.9%) fulfilled the definition of a microcephaly case. Stratification of the 94 districts resulted in the identification of four strata. The highest stratum in relation to the living conditions presented the lowest prevalence rate of microcephaly, and the overall difference between this rate and the rates of the other strata was statistically significant. The results of the Kruskal-Wallis test demonstrated that there was a strong association between a higher prevalence of microcephaly and poor living conditions. After the first 6 months of the study period, there were no microcephaly cases recorded within the population living in the richest socio-economic strata. CONCLUSION: This study showed that those residing in areas with precarious living conditions had a higher prevalence of microcephaly compared with populations with better living conditions. PMID- 29329575 TI - MicroRNA-200a confers chemoresistance by antagonizing TP53INP1 and YAP1 in human breast cancer. AB - BACKGROUND: Emerging evidence suggests molecular and phenotypic association between treatment resistance and epithelial-mesenchymal transition (EMT) in cancer. Compared with the well-defined molecular events of miR-200a in EMT, the role of miR-200a in therapy resistance remains to be elucidated. METHODS: Breast cancer cells transfected with mimic or inhibitor for miR-200a was assayed for chemoresistance in vitro. miR-200a expression was assessed by quantitative real time PCR (qRT-PCR) in breast cancer patients treated with preoperative chemotherapy. Luciferase assays, cell proliferation assay were performed to identify the targets of miR-200a and the mechanism by which it promotes treatment resistance. Survival analysis was used to evaluate the prognosis value of miR 200a. RESULTS: In this study, our results showed ectopic expression of miR-200a promotes chemoresistance in breast cancer cell lines to several chemotherapeutic agents, whereas inhibition of miR-200a enhances gemcitabine chemosensitivity in resistance cancer cells. We found overexpression of miR-200a was closely associated with poor response to preoperative chemotherapy and poor prognosis in breast cancer patients. Furthermore, knockdown of YAP1 and TP53INP1 phenocopied the effects of miR-200a overexpression, and confirmed that TP53INP1 is a novel target of miR-200a. Remarkably, TP53INP1 expression is inversely correlated with miR-200a expression in Breast cancer cell lines. Taken together, these clinical and experimental results demonstrate that miR-200a is a determinant of chemoresistance of breast cancer. CONCLUSIONS: Upregulated miR-200a enhances treatment resistance via antagonizing TP53INP1 and YAP1 in breast cancer. PMID- 29329576 TI - Spontaneous prematurity in fetuses with congenital diaphragmatic hernia: a retrospective cohort study about prenatal predictive factors. AB - BACKGROUND: To evaluate possible predictive factors of spontaneous prematurity in fetuses with congenital diaphragmatic hernia (CDH). METHODS: A retrospective cohort study was performed. Inclusion criteria were presence of CDH; absence of fetoscopy; absence of karyotype abnormality; maximum of one major malformation associated with diaphragmatic hernia; ultrasound monitoring at the Obstetrics Clinic of Clinicas Hospital at the University of Sao Paulo School of Medicine, from January 2001 to October 2014. The data were obtained through the electronic records and ultrasound system of our fetal medicine service. The following variables were analyzed: maternal age, primiparity, associated maternal diseases, smoking, previous spontaneous preterm birth, fetal malformation associated with hernia, polyhydramnios, fetal growth restriction, presence of intrathoracic liver, invasive procedures performed, side of hernia and observed-to- expected lung to head ratio (o/e LHR). On individual analysis, variables were assessed using the Chi-square test and the Mann-Whitney test. A multiple logistic regression model was applied to select variables independently influencing the prediction of preterm delivery. A ROC curve was constructed with the significant variable, identifying the values with best sensitivity and specificity to be suggested for use in clinical practice. RESULTS: Eighty fetuses were evaluated, of which, 21 (26.25%) were premature. O/e LHR was the only factor associated with prematurity (p = 0.020). The ROC curve showed 93% sensitivity with 48.4% specificity for the cutoff of 40%. CONCLUSION: O/e LHR was the only predictor of prematurity in this sample. PMID- 29329577 TI - Respiratory explants as a model to investigate early events of contagious bovine pleuropneumonia infection. AB - Contagious bovine pleuropneumonia (CBPP) is a severe disease caused by Mycoplasma mycoides subsp. mycoides (Mmm). Knowledge on CBPP pathogenesis is fragmented and hampered by the limited availability of laboratory animal and in vitro models of investigation. The purpose of the present study is to assess respiratory explants as useful tools to study the early stages of CBPP. Explants were obtained from trachea, bronchi and lungs of slaughtered cattle, tested negative for Mycoplasma spp. and for the major bacterial and viral respiratory pathogens. The interaction of Mmm with explant cells was studied by immunohistochemistry (IHC), double labelling indirect immunofluorescence (DLIIF) and laser scanning confocal microscopy (LSCM). Mmm capability to survive and proliferate within the explants was evaluated by standard microbiological procedures. Finally, the putative cellular internalization of Mmm was further investigated by the gentamicin invasion assay. IHC and DLIIF indicated that Mmm can colonize explants, showing a marked tropism for lower airways. Specifically, Mmm was detected on/inside the bronchiolar and alveolar epithelial cells, the alveolar macrophages and the endothelial cells. The interaction between Mmm and explant cells was abolished by the pre-incubation of the pathogen with bovine anti-Mmm immune sera. Mmm was able to survive and proliferate in all tracheal, bronchial and lung explants, during the entire time course of the experiments. LSCM and gentamicin invasion assay both confirmed that Mmm can enter non-phagocytic host cells. Taken together, our data supports bovine respiratory explants as a promising tool to investigate CBPP, alternative to cattle experimental infection. PMID- 29329578 TI - Guideline-based quality indicators-a systematic comparison of German and international clinical practice guidelines: protocol for a systematic review. AB - BACKGROUND: Quality indicators (QIs) are used in assessing the quality of healthcare. Evidence-based clinical practice guidelines (CPGs) are relevant sources for generating QIs. In this context, QIs are important tools to assess the implementation of guideline recommendations. However, the methodological approaches to guideline-based QI development vary considerably. In Germany, the guideline classification scheme of the AWMF (German Association of the Scientific Medical Societies) differentiates between S1-, S2k-, S2e-, and S3-CPGs depending on the methodological approach. Thus, S3-CPGs are consensus- and evidence-based CPGs and have the highest methodological standard in Germany. An analysis of the status quo of reported QIs in S3-CPGs found 35 current S3-CPGs, which report 372 different QIs. Currently, there is no gold standard for the development of guideline-based QIs. To our knowledge, no studies have investigated to what extent guideline-based QIs from different CPGs that are related to the same topic are consistent. The objective of this study is to compare guideline-based QIs and their underlying methodological approaches of German S3-CPGs with those of topic related international CPGs. METHODS: Based on the previous identified German S3 CPGs (n = 35), which report quality indicators, we will conduct systematic searches in the guidelines databases of G-I-N (Guidelines International Network) and NGC (National Guideline Clearinghouse) to identify international CPGs matching the topics of the S3-CPGs. If necessary, we will search additionally the websites of the particular CPG providers for separate documents with regard to QIs. We will include evidence-based CPGs which report QIs. Reported QIs as well as methods of development and the rationale for QIs will be extracted and compared with those of the S3-CPGs. DISCUSSION: This study will be part of the project "Systematic analysis of the translation of guideline recommendations into quality indicators and development of an evidence- and consensus-based standard," supported by the German Research Association (DFG). The results of this analysis will feed into a subsequent qualitative study, which will consist of structured interviews with developers of international CPGs. Further, the results will be considered in a consensus study on standards of the translation of guideline recommendations into quality indicators in Germany. PMID- 29329579 TI - Prevalence and incidence of major depressive disorders among people living with HIV residing in Africa: a systematic review and meta-analysis protocol. AB - BACKGROUND: Depression represents one of the most frequent neuro-psychiatric diseases; it seems to be more prevalent in people living with HIV compared to the general population. However, summarized data in the African setting on the topic are scarce. This systematic review and meta-analysis aims at assessing the prevalence and incidence of major depressive disorders (MDD) in HIV-infected African populations residing in Africa. METHODS AND DESIGN: This review will include observational studies conducted among HIV-infected people residing in Africa, which have reported either the prevalence or incidence of MDD or enough data for its appraisal. Relevant records will be searched using PubMed/Medline, EMBASE, African Journals Online, and Africa Index Medicus. In addition, reference lists of eligible papers and relevant review articles will be screened. Published studies from inception Jan 1, 2000 to Dec 31, 2017 will be considered regardless of language of publication. Two review authors will independently screen, select studies, and extract data, with discrepancies resolved by consensus or arbitration by a third review author. Methodological quality of included studies will be assessed using the scale developed by Hoy and colleagues. Funnel-plots and Egger's test will be used to determine publication bias. The study-specific estimates will be pooled through a random-effects meta-analysis model to obtain an overall summary estimate. The heterogeneity will be evaluated by the chi2 test on Cochrane's Q statistic. Results will be presented by geographical region and antiretroviral therapy status. DISCUSSION: This study is based on published data; therefore, ethical approval is not a requirement. The final report of this study in the form of a scientific paper will be published in a peer-reviewed journal and presented at scientific conferences. This review will help to have an overview of the burden of MDD among HIV-infected people residing in Africa. SYSTEMATIC REVIEW REGISTRATION: PROSPERO, CRD42017058118 . PMID- 29329580 TI - Evidence for the activation of pyroptotic and apoptotic pathways in RPE cells associated with NLRP3 inflammasome in the rodent eye. AB - BACKGROUND: Age-related macular degeneration (AMD) is a devastating eye disease causing irreversible vision loss in the elderly. Retinal pigment epithelium (RPE), the primary cell type that is afflicted in AMD, undergoes programmed cell death in the late stages of the disease. However, the exact mechanisms for RPE degeneration in AMD are still unresolved. The prevailing theories consider that each cell death pathway works independently and without regulation of each other. Building upon our previous work in which we induced a short burst of inflammasome activity in vivo, we now investigate the effects of prolonged inflammasome activity on RPE cell death mechanisms in rats. METHODS: Long-Evans rats received three intravitreal injections of amyloid beta (Abeta), once every 4 days, and were sacrificed at day 14. The vitreous samples were collected to assess the levels of secreted cytokines. The inflammasome activity was evaluated by both immunohistochemistry and western blot. The types of RPE cell death mechanisms were determined using specific cell death markers and morphological characterizations. RESULTS: We found robust inflammasome activation evident by enhanced caspase-1 immunoreactivity, augmented NF-kappaB nuclear translocalization, increased IL-1beta vitreal secretion, and IL-18 protein levels. Moreover, we observed elevated proteolytic cleavage of caspase-3 and gasdermin D, markers for apoptosis and pyroptosis, respectively, in RPE-choroid tissues. There was also a significant reduction in the anti-apoptotic factor, X linked inhibitor of apoptosis protein, consistent with the overall changes of RPE cells. Morphological analysis showed phenotypic characteristics of pyroptosis including RPE cell swelling. CONCLUSIONS: Our data suggest that two cell death pathways, pyroptosis and apoptosis, were activated in RPE cells after exposure to prolonged inflammasome activation, induced by a drusen component, Abeta. The involvement of two distinct cell death pathways in RPE sheds light on the potential interplay between these pathways and provides insights on the future development of therapeutic strategies for AMD. PMID- 29329581 TI - MicroRNA-124 regulates the expression of MEKK3 in the inflammatory pathogenesis of Parkinson's disease. AB - BACKGROUND: Parkinson's disease (PD) is the most prevalent neurodegenerative disorder that is characterised by selective loss of midbrain dopaminergic (DA) neurons. Chronic inflammation of the central nervous system is mediated by microglial cells and plays a critical role in the pathological progression of PD. Brain-specific microRNA-124 (miR-124) expression is significantly downregulated in lipopolysaccharide (LPS)-treated BV2 cells and in the 1-methyl-4-phenyl 1,2,3,6-tetrahydropyridine (MPTP) model of PD. However, whether abnormal miR-124 expression could regulate the activation of microglia remains poorly understood. METHODS: BV2 cells were activated by exposure to LPS, and the expression levels of miR-124, mitogen-activated protein kinase kinase kinase 3 (MEKK3), and the nuclear factor of kappaB (NF-kappaB) p-p65 were analysed. Over-expression and knockdown studies of miR-124 were performed to observe the effects on MEKK3/NF kappaB signalling pathways, and the induction of pro-inflammatory and neurotoxic factors was assessed. In addition, a luciferase reporter assay was conducted to confirm whether MEKK3 is a direct target of miR-124. Meanwhile, production of miR 124, MEKK3, and p-p65; midbrain DA neuronal death; or activation of microglia were analysed when treated with or without miR-124 in the MPTP-induced model of PD. RESULTS: We found that the knockdown of MEKK3 could inhibit the activation of microglia by regulating NF-kappaB expression. Over-expression of miR-124 could effectively attenuate the LPS-induced expression of pro-inflammatory cytokines and promote the secretion of neuroprotective factors. We also first identified a unique role of miR-124 in mediating the microglial inflammatory response by targeting MEKK3/NF-kappaB signalling pathways. In the microglial culture supernatant (MCS) transfer model, over-expression of the miR-124 or knockdown of MEKK3 in BV2 cells prevented SH-SY5Y from apoptosis and death. Moreover, MEKK3 and p-p65 were abundantly expressed in the midbrain. Furthermore, their expression levels increased and microglial activation was observed in the MPTP induced model of PD. In addition, exogenous delivery of miR-124 could suppress MEKK3 and p-p65 expression and attenuate the activation of microglia in the substantia nigra pars compacta of MPTP-treated mice. miR-124 also could prevent MPTP-dependent apoptotic midbrain DA cell death in a MPTP-induced PD model. CONCLUSIONS: Taken together, our data suggest that miR-124 can inhibit neuroinflammation in the development of PD by regulating the MEKK3/NF-kappaB signalling pathways and implicate miR-124 as a potential therapeutic target for regulating the inflammatory response in PD. PMID- 29329582 TI - When do patient reported quality of life indicators become prognostic in breast cancer? AB - BACKGROUND: Various patient reported quality-of-life indicators are independently prognostic for survival in metastatic breast cancer and other cancers. The same measures recorded at first diagnosis of early breast cancer carry no corresponding prognostic information. The present study aims to assess at what time in the disease evolution the prognostic association appears. METHODS: Among 8024 patients enrolled in one of seven randomized controlled trials in early stage breast cancer 3247 had a breast cancer relapse after a median follow-up of 12.1 years. Of these 677 had completed QL indicator assessments within defined windows 1, 2 or 3 months prior to relapse. We performed Cox regression analyses using these assessments and using identical instruments after relapse. All analyses were stratified by trial and adjusted for baseline clinicopathologic factors. RESULTS: QL indicators in the months before relapse were not significantly prognostic for subsequent survival with the possibly chance exception of mood at the second month before relapse. After relapse, physical well-being was statistically significantly associated with survival (P < 0.001). This prognostic significance increased in later post-relapse assessments. Similar findings were observed using patient-reported indicators for nausea and vomiting, appetite, coping effort, and health perception. CONCLUSIONS: Before cancer relapse, QL indicators were not generally prognostic for subsequent survival. After relapse, QL indicators substantially predicted OS, with a stronger association later in the course of relapsed disease. Simple patient perception of disease burden seems unlikely to explain this sudden change: rather the patient's awareness of disease relapse must contribute. PMID- 29329583 TI - Correction to: Dendrimer-mediated delivery of N-acetyl cysteine to microglia in a mouse model of Rett syndrome. AB - After publication of the article [1], it has been brought to our attention that an author's name has been formatted incorrectly. PMID- 29329584 TI - Validity of the school setting interview for students with special educational needs in regular high school - a Rasch analysis. AB - BACKGROUND: Participation in education is a vital component of adolescents' everyday life and a determinant of health and future opportunities in adult life. The School Setting Interview (SSI) is an instrument which assesses student environment fit and reflects the potential needs for adjustments to enhance students' participation in school activities. The aim of the study was to investigate the psychometric properties of the SSI for students with special educational needs in regular high school. METHODS: A sample of 509 students with special educational needs was assessed with the SSI. The polytomous unrestricted Rasch model was used to analyze the psychometric properties of the SSI regarding targeting, model fit, differential item functioning (DIF), response category functioning and unidimensionality. RESULTS: The SSI generally confirmed fit to assumptions of the Rasch model. Reliability was acceptable (0.73) and the SSI scale was able to separate students into three different levels of student environment fit. DIF among gender was detected in item "Remember things" and in item "Homework" DIF was detected among students with or without diagnosis. All items had disordered thresholds. The SSI demonstrated unidimensionality and no response dependence was present among items. CONCLUSION: The results suggest that the SSI is valid for use among students with special educational needs in order to provide and evaluate environmental adjustments. However, the items with the detected DIF and the SSI rating scale with its disordered thresholds needs to be further scrutinized. PMID- 29329585 TI - Involvement of hedgehog pathway in early onset, aggressive molecular subtypes and metastatic potential of breast cancer. AB - BACKGROUND: Dysregulation of hedgehog pathway is observed in numerous cancers. Relevance of hedgehog pathway genes in cancer cohort and inhibition of its downstream effector (GLI1) towards metastasis in cell lines are explored in the study. METHOD: One hundred fifty fresh tumours of breast cancer patients were collected for the study. Based on differential expression, panel of 6 key regulators of the pathway (SHH, DHH, IHH, PTCH1, SMO and GLI1) in microarray datasets were identified. Expressional profiles of aforementioned genes were later correlated with clinico-pathological parameters in Pakistani breast cancer cohort at transcript and protein levels. In addition, GLI1 over expressing breast cancer cell lines (MDA-MB-231 and MCF-7) were treated with GANT61 to explore its probable effects on metastasis. RESULT: SHH, DHH, PTCH1 and GLI1 were significantly over-expressed in tumours as compared with respective normal mammary tissues. A significant correlation of SHH, DHH and GLI1 expression with advanced tumour size, stages, grades, nodal involvement and distant metastasis was observed (p < 0.05). Over-expression of SHH, DHH and GLI1 was significantly related with patients having early onset and pre-menopausal status. Of note, hedgehog pathway was frequently up regulated in luminal B and triple negative breast cancer affected women. In addition, positive correlations were observed among aforementioned members of pathway and Ki67 (r-value: 0.63-0.78) emphasizing their role towards disease progression. Exposure of GANT61 (inhibitor for GLI1) significantly restricted cell proliferation, reduced cell motility and invasion. CONCLUSION: Role of activated hedgehog pathway in breast cancer metastasis provides a novel target for cancer therapy against aggressive cancer subtypes. PMID- 29329586 TI - IL-33/ST2 signaling contributes to radicular pain by modulating MAPK and NF kappaB activation and inflammatory mediator expression in the spinal cord in rat models of noncompressive lumber disk herniation. AB - BACKGROUND: Immune and inflammatory responses occurring in the spinal cord play a pivotal role in the progression of radicular pain caused by intervertebral disk herniation. Interleukin-33 (IL-33) orchestrates inflammatory responses in a wide range of inflammatory and autoimmune disorders of the nervous system. Thus, the purpose of this study is to investigate the expression of IL-33 and its receptor ST2 in the dorsal spinal cord and to elucidate whether the inhibition of spinal IL-33 expression significantly attenuates pain-related behaviors in rat models of noncompressive lumbar disc herniation. METHODS: Lentiviral vectors encoding short hairpin RNAs that target IL-33 (LV-shIL-33) were constructed for gene silencing. Rat models of noncompressive lumber disk herniation were established, and the spines of rats were injected with LV-shIL-33 (5 or 10 MUl) on the first day after the operation. Mechanical thresholds were evaluated during an observation period of 21 days. Moreover, the expression levels of spinal tumor necrosis factor-alpha (TNF-alpha), interleukin-1beta (IL-1beta), interleukin-6 (IL-6), and cyclooxygenase 2 (COX-2) and the activation of the mitogen-activated protein kinases (MAPK) and nuclear factor-kappaB (NF-kappaB) pathways were evaluated to gain insight into the mechanisms related to the contribution of IL-33/ST2 signaling to radicular pain. RESULTS: The application of nucleus pulposus (NP) to the dorsal root ganglion (DRG) induced an increase in IL-33 and ST2 expression in the spinal cord, mainly in the dorsal horn neurons, astrocytes, and oligodendrocytes. Spinally delivered LV-shIL-33 knocked down the expression of IL 33 and markedly attenuated mechanical allodynia. In addition, spinal administration of LV-shIL-33 reduced the overexpression of spinal IL-1beta, TNF alpha, and COX-2 and attenuated the activation of C-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), and NF-kappaB/p65 but not p38. CONCLUSIONS: This study indicates that spinal IL-33/ST2 signaling plays an important role in the development and progression of radicular pain in rat models of noncompressive lumber disk herniation. Thus, the inhibition of spinal IL-33 expression may provide a potential treatment to manage radicular pain caused by intervertebral disk herniation. PMID- 29329587 TI - The effectiveness of a web 2.0 physical activity intervention in older adults - a randomised controlled trial. AB - BACKGROUND: Interactive web-based physical activity interventions using Web 2.0 features (e.g., social networking) have the potential to improve engagement and effectiveness compared to static Web 1.0 interventions. However, older adults may engage with Web 2.0 interventions differently than younger adults. The aims of this study were to determine whether an interaction between intervention (Web 2.0 and Web 1.0) and age group (<55y and >=55y) exists for website usage and to determine whether an interaction between intervention (Web 2.0, Web 1.0 and logbook) and age group (<55y and >=55y) exists for intervention effectiveness (changes in physical activity). METHODS: As part of the WALK 2.0 trial, 504 Australian adults were randomly assigned to receive either a paper logbook (n = 171), a Web 1.0 (n = 165) or a Web 2.0 (n = 168) physical activity intervention. Moderate to vigorous physical activity was measured using ActiGraph monitors at baseline 3, 12 and 18 months. Website usage statistics including time on site, number of log-ins and number of step entries were also recorded. Generalised linear and intention-to-treat linear mixed models were used to test interactions between intervention and age groups (<55y and >=55y) for website usage and moderate to vigorous physical activity changes. RESULTS: Time on site was higher for the Web 2.0 compared to the Web 1.0 intervention from baseline to 3 months, and this difference was significantly greater in the older group (OR = 1.47, 95%CI = 1.01-2.14, p = .047). Participants in the Web 2.0 group increased their activity more than the logbook group at 3 months, and this difference was significantly greater in the older group (moderate to vigorous physical activity adjusted mean difference = 13.74, 95%CI = 1.08-26.40 min per day, p = .03). No intervention by age interactions were observed for Web 1.0 and logbook groups. CONCLUSIONS: Results partially support the use of Web 2.0 features to improve adults over 55 s' engagement in and behaviour changes from web-based physical activity interventions. TRIAL REGISTRATION: ACTRN ACTRN12611000157976 , Registered 7 March 2011. PMID- 29329588 TI - Accuracy of four mononucleotide-repeat markers for the identification of DNA mismatch-repair deficiency in solid tumors. AB - BACKGROUND: To screen tumors with microsatellite instability (MSI) arising due to DNA mismatch repair deficiency (dMMR), a panel of five quasi-monomorphic mononucleotide-repeat markers amplified in a multiplex PCR (Pentaplex) are commonly used. In spite of its several strengths, the pentaplex assay is not robust at detecting the loss of MSH6-deficiency (dMSH6). In order to overcome this challenge, we designed this study to develop and optimize a panel of four quasi-monomorphic mononucleotide-repeat markers (Tetraplex) for identifying solid tumors with dMMR, especially dMSH6. METHODS: To improve the sensitivity for tumors with dMMR, we established a quasi-monomorphic variant range (QMVR) of 3-4 bp for the four Tetraplex markers. Thereafter, to confirm the accuracy of this assay, we examined 317 colorectal cancer (CRC) specimens, comprising of 105 dMMR [45 MutL homolog (MLH)1-deficient, 45 MutS protein homolog (MSH)2-deficient, and 15 MSH6-deficient tumors] and 212 MMR-proficient (pMMR) tumors as a test set. In addition, we analyzed a cohort of 138 endometrial cancers (EC) by immunohistochemistry to determine MMR protein expression and validation of our new MSI assay. RESULTS: Using the criteria of >= 1 unstable markers as MSI positive tumor, our assay resulted in a sensitivity of 97.1% [95% confidence interval (CI) = 91.9-99.0%] for dMMR, and a specificity of 95.3% (95% CI = 91.5 97.4%) for pMMR CRC specimens. Among the 138 EC specimens, 41 were dMMR according to immunohistochemistry. Herein, our Tetraplex assay detected dMMR tumors with a sensitivity of 92.7% (95% CI = 80.6-97.5%) and a specificity of 97.9% (95% CI = 92.8-99.4%) for pMMR tumors. With respect to tumors with dMSH6, in the CRC validation set, Tetraplex detected dMSH6 tumors with a sensitivity of 86.7% (13 of 15 dMSH6 CRCs), which was subsequently validated in the EC test set as well (sensitivity, 75.0%; 6 of 8 dMSH6 ECs). CONCLUSIONS: Our newly optimized Tetraplex system will help offer a robust and highly sensitive assay for the identification of dMMR in solid tumors. PMID- 29329589 TI - Enhanced metastatic capacity of breast cancer cells after interaction and hybrid formation with mesenchymal stroma/stem cells (MSC). AB - BACKGROUND: Fusion of breast cancer cells with tumor-associated populations of the microenvironment including mesenchymal stroma/stem-like cells (MSC) represents a rare event in cell communication whereby the metastatic capacity of those hybrid cells remains unclear. METHODS: Functional changes were investigated in vitro and in vivo following spontaneous fusion and hybrid cell formation between primary human MSC and human MDA-MB-231 breast cancer cells. Thus, lentiviral eGFP-labeled MSC and breast cancer cells labeled with mcherry resulted in dual-fluorescing hybrid cells after co-culture. RESULTS: Double FACS sorting and single cell cloning revealed two different aneuploid male hybrid populations (MDA-hyb1 and MDA-hyb2) with different STR profiles, pronounced telomerase activities, and enhanced proliferative capacities as compared to the parental cells. Microarray-based mRNA profiling demonstrated marked regulation of genes involved in epithelial-mesenchymal transition and increased expression of metastasis-associated genes including S100A4. In vivo studies following subcutaneous injection of the breast cancer and the two hybrid populations substantiated the in vitro findings by a significantly elevated tumor growth of the hybrid cells. Moreover, both hybrid populations developed various distant organ metastases in a much shorter period of time than the parental breast cancer cells. CONCLUSION: Together, these data demonstrate spontaneous development of new tumor cell populations exhibiting different parental properties after close interaction and subsequent fusion of MSC with breast cancer cells. This formation of tumor hybrids contributes to continuously increasing tumor heterogeneity and elevated metastatic capacities. PMID- 29329590 TI - Frequent overexpression of AMAP1, an Arf6 effector in cell invasion, is characteristic of the MMTV-PyMT rather than the MMTV-Neu human breast cancer model. AB - BACKGROUND: The small GTPase Arf6 and its downstream effector AMAP1 (also called ASAP1/DDEF1) constitute a signaling pathway promoting cell invasion, in which AMAP1 interacts with several different proteins, including PRKD2, EPB41L5, paxillin, and cortactin. Components of this pathway are often overexpressed in human breast cancer cells, to be correlated with poor prognosis of the patients, whereas overexpression of the Arf6 pathway did not correlate with the four main molecular classes of human breast tumors. In this pathway, receptor tyrosine kinases, including EGFR and Her2, activate Arf6 via GEP100. MMTV-PyMT mice and MMTV-Neu mice are well-established models of human breast cancer, and exhibit the early dissemination and the lung metastasis, by utilizing protein tyrosine phosphorylation for oncogenesis. PyMT-tumors and Neu-tumors are known to have overlapping gene expression profiles, which primarily correspond to the luminal B type of human mammary tumors, although they differ in the time necessary for tumor onset and metastasis. Given the common usage of protein tyrosine phosphorylation, as well as the frequent use of these animal models for studying breast cancer at the molecular level, we here investigated whether mammary tumors in these mouse models utilize the Arf6-based pathway for invasion. METHODS: Expression levels of Arf6, AMAP1, and GEP100 were analyzed in PyMT-tumors and Neu tumors by western blotting. Expression of Arf6 and AMAP1 was also analyzed by immunohistochemistry. The involvement of AMAP1 in invasion, and the possible correlation of its high expression levels with cancer mesenchymal properties were also investigated. RESULTS: We found that PyMT-tumors, but not Neu-tumors, frequently overexpress AMAP1 and use it for invasion, whereas both types of tumors expressed Arf6 and GEP100 at different levels. High levels of the AMAP1 expression among PyMT-tumor cells were frequently correlated with loss of the epithelial marker CK8 and also with expression of the mesenchymal marker vimentin both at the primary sites and at sites of the lung metastases. CONCLUSIONS: PyMT tumors appear to frequently utilize the Arf6-based invasive machinery, whereas Neu-tumors do not. Our results suggest that MMTV-PyMT mice, rather than MMTV-Neu mice, are useful to study the Arf6-based mammary tumor malignancies, as a representative model of human breast cancer. PMID- 29329592 TI - The eXtensible ontology development (XOD) principles and tool implementation to support ontology interoperability. AB - Ontologies are critical to data/metadata and knowledge standardization, sharing, and analysis. With hundreds of biological and biomedical ontologies developed, it has become critical to ensure ontology interoperability and the usage of interoperable ontologies for standardized data representation and integration. The suite of web-based Ontoanimal tools (e.g., Ontofox, Ontorat, and Ontobee) support different aspects of extensible ontology development. By summarizing the common features of Ontoanimal and other similar tools, we identified and proposed an "eXtensible Ontology Development" (XOD) strategy and its associated four principles. These XOD principles reuse existing terms and semantic relations from reliable ontologies, develop and apply well-established ontology design patterns (ODPs), and involve community efforts to support new ontology development, promoting standardized and interoperable data and knowledge representation and integration. The adoption of the XOD strategy, together with robust XOD tool development, will greatly support ontology interoperability and robust ontology applications to support data to be Findable, Accessible, Interoperable and Reusable (i.e., FAIR). PMID- 29329591 TI - Prospects for chimeric antigen receptor-modified T cell therapy for solid tumors. AB - The potential for adoptive cell immunotherapy as a treatment against cancers has been demonstrated by the remarkable response in some patients with hematological malignancies using autologous T cells endowed with chimeric antigen receptors (CARs) specific for CD19. Clinical efficacy of CAR-T cell therapy for the treatment of solid tumors, however, is rare due to physical and biochemical factors. This review focuses on different aspects of multiple mechanisms of immunosuppression in solid tumors. We characterize the current state of CAR modified T cell therapy and summarize the various strategies to combat the immunosuppressive microenvironment of solid tumors, with the aim of promoting T cell cytotoxicity and enhancing tumor cell eradication. PMID- 29329593 TI - Targeting ectodysplasin promotor by CRISPR/dCas9-effector effectively induces the reprogramming of human bone marrow-derived mesenchymal stem cells into sweat gland-like cells. AB - BACKGROUND: Patients with a deep burn injury are characterized by losing the function of perspiration and being unable to regenerate the sweat glands. Because of their easy accession, multipotency, and lower immunogenicity, bone marrow derived mesenchymal stem cells (BM-MSCs) represent as an ideal biological source for cell therapy. The aim of this study was to identify whether targeting the promotor of ectodysplasin (EDA) by CRISPR/dCas9-effector (dCas9-E) could induce the BM-MSCs to differentiate into sweat gland-like cells (SGCs). METHODS: Activation of EDA transcription in BM-MSCs was attained by transfection of naive BM-MSCs with the lenti-CRISPR/dCas9-effector and single-guide RNAs (sgRNAs). The impact of dCas9-E BM-MSCs on the formation of SGCs and repair of burn injury was identified and evaluated both in vitro and in a mouse model. RESULTS: After transfection with sgRNA-guided dCas9-E, the BM-MSCs acquired significantly higher transcription and expression of EDA by doxycycline (Dox) induction. Intriguingly, the specific markers (CEA, CK7, CK14, and CK19) of sweat glands were also positive in the transfected BM-MSCs, suggesting that EDA plays a critical role in promoting BM-MSC differentiation into sweat glands. Furthermore, when the dCas9-E BM-MSCs with Dox induction were implanted into a wound in a laboratory animal model, iodine-starch perspiration tests revealed that the treated paws were positive for perspiration, while the paws treated with saline showed a negative manifestation. For the regulatory mechanism, the expression of downstream genes of NF-kappaB (Shh and cyclin D1) was also enhanced accordingly. CONCLUSIONS: These results suggest that EDA is a pivotal factor for sweat gland regeneration from BM-MSCs and may also offer a new approach for destroyed sweat glands and extensive deep burns. PMID- 29329594 TI - Modelling the structure of a ceRNA-theoretical, bipartite microRNA-mRNA interaction network regulating intestinal epithelial cellular pathways using R programming. AB - OBJECTIVE: We report a method using functional-molecular databases and network modelling to identify hypothetical mRNA-miRNA interaction networks regulating intestinal epithelial barrier function. The model forms a data-analysis component of our cell culture experiments, which produce RNA expression data from Nanostring Technologies nCounter(r) system. The epithelial tight-junction (TJ) and actin cytoskeleton interact as molecular components of the intestinal epithelial barrier. Upstream regulation of TJ-cytoskeleton interaction is effected by the Rac/Rock/Rho signaling pathway and other associated pathways which may be activated or suppressed by extracellular signaling from growth factors, hormones, and immune receptors. Pathway activations affect epithelial homeostasis, contributing to degradation of the epithelial barrier associated with osmotic dysregulation, inflammation, and tumor development. The complexity underlying miRNA-mRNA interaction networks represents a roadblock for prediction and validation of competing-endogenous RNA network function. RESULTS: We developed a network model to identify hypothetical co-regulatory motifs in a miRNA-mRNA interaction network related to epithelial function. A mRNA-miRNA interaction list was generated using KEGG and miRWalk2.0 databases. R-code was developed to quantify and visualize inherent network structures. We identified a sub-network with a high number of shared, targeting miRNAs, of genes associated with cellular proliferation and cancer, including c-MYC and Cyclin D. PMID- 29329595 TI - Human umbilical cord mesenchymal stem cell conditioned medium attenuates renal fibrosis by reducing inflammation and epithelial-to-mesenchymal transition via the TLR4/NF-kappaB signaling pathway in vivo and in vitro. AB - BACKGROUND: Renal fibrosis is characterized by infiltration of interstitial inflammatory cells and release of inflammatory mediators, activation and proliferation of fibroblasts, and deposition of excessive extracellular matrix (ECM). The aim of this study was to evaluate the effect of human umbilical cord derived mesenchymal stem cell (hucMSC) conditioned medium (CM) on renal tubulointerstitial inflammation and fibrosis. METHODS: Renal interstitial fibrosis was prepared in vivo using the unilateral ureteral obstruction (UUO). Rats were divided randomly into Sham group, Sham group with CM, UUO group, and UUO group with CM. The effect of hucMSC-CM on kidney injury induced by UUO was assessed by detecting kidney histopathology, serum creatinine (SCr), and blood urea nitrogen (BUN). The levels of TNF-alpha, IL-6, and IL-1beta in serum and kidney tissues were detected by ELISA. The expression of proteins associated with fibrosis and renal inflammation was investigated using immunohistochemical staining and western blotting. The effects of hucMSC-CM on the TGF-beta1-induced epithelial-mesenchymal transition (EMT) process and on inflammation in NRK-52E cells were investigated by immunofluorescent staining, ELISA, and western blotting. RESULTS: hucMSC-CM reduced extracellular matrix deposition and inflammatory cell infiltration as well as release of inflammatory factors in UUO induced renal fibrosis. Furthermore, hucMSC-CM markedly attenuated the EMT process and proinflammatory cytokines in rats with UUO and TGF-beta1-induced NRK 52E cells. hucMSC-CM also inhibited the TLR4/NF-kappaB signaling pathway in vivo and in vitro. CONCLUSIONS: Our results suggest that hucMSC-CM has protective effects against UUO-induced renal fibrosis and that hucMSC-CM exhibits its anti inflammatory effects through inhibiting TLR4/NF-kappaB signaling pathway activation. PMID- 29329596 TI - The epidemiology of psoriatic arthritis in Israel - a population-based study. AB - BACKGROUND: There is limited information on the epidemiology of psoriatic arthritis (PsA) in general and in Middle Eastern populations in particular. The aims of this study were to estimate the prevalence and incidence rates of PsA and their temporal trends in the general population in Israel. METHODS: In this study, a cohort of adult patients with PsA was derived from the database of Clalit Health Services (CHS), Israel's largest health fund, with over 4.4 million members. The crude and age- and sex-standardized prevalence and incidence rates of PsA from 2006 to 2015 in the general population were calculated. The variation in PsA prevalence was assessed in relation to several demographic factors. RESULTS: Among the 2,931,199 individuals aged 18 years and older registered in the CHS database in 2015, 4490 patients had a diagnosis of PsA (322 incident cases), resulting in overall crude prevalence and incidence rates of 0.153% (95% CI 0.149%, 0.158%) and 10.9 (95% CI 9.8, 12.3) per 100,000 population, respectively. The reported prevalence of PsA in Israel has doubled between 2006 and 2015 (from 0.073% to 0.153%). In contrast, the global incidence rate remained stable, with a gradual increase in incidence among individuals aged 51 to 70 years. PsA is associated with Jewish ethnicity, high socioeconomic status, and higher body mass index. CONCLUSIONS: The prevalence and incidence of PsA in Israel are within the range of previous estimates from Southern European populations. An increase in the reported prevalence of PsA was observed over the past decade in the general population in Israel. PMID- 29329597 TI - Does cognitive behavioral therapy alter mental defeat and cognitive flexibility in patients with panic disorder? AB - OBJECTIVE: Mental defeat and cognitive flexibility have been studied as explanatory factors for depression and posttraumatic stress disorder. This study examined mental defeat and cognitive flexibility scores in patients with panic disorder (PD) before and after cognitive behavioral therapy (CBT), and compared them to those of a gender- and age-matched healthy control group. RESULTS: Patients with PD (n = 15) received 16 weekly individual CBT sessions, and the control group (n = 35) received no treatment. Patients completed the Mental Defeat Scale and the Cognitive Flexibility Scale before the intervention, following eight CBT sessions, and following 16 CBT sessions, while the control group did so only prior to receiving CBT (baseline). The patients' pre-CBT Mental Defeat and Cognitive Flexibility Scale scores were significantly higher on the Mental Defeat Scale and lower on the Cognitive Flexibility Scale than those of the control group participants were. In addition, the average Mental Defeat Scale scores of the patients decreased significantly, from 22.2 to 12.4, while their average Cognitive Flexibility Scale scores increased significantly, from 42.8 to 49.5. These results suggest that CBT can reduce mental defeat and increase cognitive flexibility in patients with PD Trial registration The study was registered retrospectively in the national UMIN Clinical Trials Registry on June 10, 2016 (registration ID: UMIN000022693). PMID- 29329598 TI - Treatment outcome of anti-angiogenesis through VEGF-pathway in the management of gastric cancer: a systematic review of phase II and III clinical trials. AB - OBJECTIVES: Advanced gastric cancer poses a therapeutic challenge worldwide. In randomised clinical trials, anti-VEGF has been reported as an essential agent for the treatment of advanced gastric cancer. This review aims at assessing the treatment outcome of anti-angiogenesis therapy through the VEGF pathway in the management of patients with advanced gastric cancer. RESULTS: During this review, 38 clinical trials were identified. Of these, 30 clinical trials were excluded, leaving eight trials of phase II and III. Ramucirumab, as a second line treatment of advanced gastric cancer, decreases the risk of disease progression (37-52%) and death (19-22%). Compare ramucirumab and bevacizumab in combination with traditional chemotherapy; ramucirumab has shown to improve progression-free survival and overall survival. Apatinib tyrosine kinase inhibitor combined with traditional chemotherapy has shown to improve overall response rate and progression-free survival with marginal improvements in overall survival. Chemotherapy, in combination with anti-VEGF drugs, in the management of advanced gastric cancer significantly improves the outcome of overall response rate, progression-free survival and overall survival when compared to chemotherapy alone. Therefore, we recommend that anti-VEGF drugs are the drugs of choice in the management of patients with advanced gastric cancer. PMID- 29329599 TI - Gallbladder ascariasis in Kosovo - focus on ultrasound and conservative therapy: a case series. AB - BACKGROUND: Ascaris lumbricoides is one of the most common intestinal infections in developing countries, including Kosovo. In contrast to migration to the bile duct, migration of the worm to the gallbladder, due to the narrow and tortuous nature of the cystic duct, is rare. When it does occur, it incites acalculous cholecystitis. CASE PRESENTATIONS: This case series describes a 16-month-old Albanian girl, a 22-month-old Albanian girl, a 4-year-old Albanian girl, and a 10 year-old Albanian boy. Here we report our experience with gallbladder ascariasis including clinical manifestations, diagnostic procedures, and treatment. Fever, diarrhea and vomiting, dehydration, pale appearance, and weakness were the manifestations of the primary disease. In all patients, a physical examination revealed reduced turgor and elasticity of the skin. Abdomen was at the level of the chest, soft, with minimal palpatory pain. The liver and spleen were not palpable. A laboratory examination was not specific except for eosinophilia. There were no pathogenic bacteria in coproculture but Ascaris was found in all patients. At an ultrasound examination in all cases we found single, long, linear echogenic structure without acoustic shadowing containing a central, longitudinal anechoic tube with characteristic movement within the gallbladder. Edema of the gallbladder wall was suggestive of associated inflammation. There were no other findings on adjacent structures and organs. All patients received mebendazole 100 mg twice a day for 3 days. They also received symptomatic therapy for gastroenteritis. Because of elevated markers of inflammation all patients were treated with antibiotics, assuming acute cholecystitis, although ultrasound was able to confirm cholecystitis in only two of our four patients. Since the length of stay was dependent on the primary pathology it was 7 to 10 days. At control ultrasounds on 14th day, third and sixth month, all patients were free of ascariasis. CONCLUSIONS: Gallbladder ascariasis should be considered in all patients presenting with abdominal pain, distension, colic, nausea, anorexia, and intermittent diarrhea associated with jaundice, nausea, vomiting, fever, and severe radiating pain. Eosinophilia, ova, and parasites on stool examination as well as an anechogenic tube with characteristic movement within the bile duct found on abdominal ultrasound are conclusive for diagnosis. Mebendazole is an effective drug for the treatment. Surgical treatment is rarely needed. PMID- 29329600 TI - Optimal waist circumference cut-off points for predicting metabolic syndrome among low-income black South African adults. AB - OBJECTIVE: Waist circumference has been identified as one of the strongest predictive tool for metabolic syndrome. This study determines the optimal cut-off point of waist circumference for metabolic syndrome among low-income earning South African black population, in Eastern Cape, South Africa. The optimal waist circumference cut-off point was determined through receiver operating characteristics analysis using the maximum Youden index. RESULTS: Among men, waist circumference at a cut-off value of 95.25 cm yielded the highest Youden index of 0.773 (sensitivity = 98%, specificity = 79%, area under curve 0.893). For women, waist circumference of 89.45 cm yielded the highest Youden index of 0.339 (sensitivity = 88%, specificity = 46%, area under curve 0.713). The prevalence of metabolic syndrome among men, women and both sexes using the new cut-off points were: 17.8, 20.8 and 17.7%, respectively, compared to; 15.6, 24.8 and 21.8%, using the traditional cut-off values of 94 and 80 cm for men and women, respectively. The traditional waist circumference value slightly under estimated the prevalence of metabolic syndrome among men and over-estimated among women and the overall population. A specific waist circumference cut-off point for South African blacks is needed for correct identification of the metabolic state of the populace in order to develop appropriate interventions. PMID- 29329601 TI - Nicotiana glauca whole-genome investigation for cT-DNA study. AB - OBJECTIVE: Nicotiana glauca (tree tobacco) is a naturally transgenic plant, containing sequences acquired from Agrobacterium rhizogenes by horizontal gene transfer. Besides, N. glauca contains a wide profile of alkaloids of medical interest. DATA DESCRIPTION: We report a high-depth sequencing and de novo assembly of N. glauca full genome and analysis of genome elements with bacterial origin. The draft genome assembly is 3.2 Gb, with N50 size of 31.1 kbp. Comparative analysis confirmed the presence of single, previously described gT insertion. No evidence was acquired to support idea of multiple T-DNA insertions in the N. glauca genome. Our data is the first comprehensive de novo assembly of tree tobacco and provide valuable information for researches in pharmacological and in phylogenetic fields. PMID- 29329602 TI - Abatacept used in combination with non-methotrexate disease-modifying antirheumatic drugs: a descriptive analysis of data from interventional trials and the real-world setting. AB - BACKGROUND: Methotrexate (MTX) remains the anchor drug in rheumatoid arthritis (RA) treatment, but is poorly tolerated or contraindicated in some patients. There is a wealth of data supporting the use of abatacept in combination with MTX, but data on alternative conventional synthetic disease-modifying antirheumatic drug (csDMARD) combinations with abatacept are scarce. METHODS: In this post-hoc exploratory analysis, efficacy and safety data were extracted from abatacept RA studies in which combination with csDMARDs other than MTX was permitted: three interventional trials (ATTAIN, ASSURE, and ARRIVE) and one real world study (ACTION). Patients with moderate-to-severe RA received abatacept in combination with MTX, hydroxychloroquine, sulfasalazine, azathioprine, or leflunomide for 6 months to 2 years according to the study design. Change from baseline in physical function (Health Assessment Questionnaire-Disability Index (HAQ-DI); all studies) and 28-joint Disease Activity Score (C-reactive protein) (DAS28 (CRP); ATTAIN, ARRIVE, and ACTION), American College of Rheumatology response rates (ATTAIN), and safety were assessed for individual and pooled csDMARD combinations for each trial. A meta-analysis was also performed on pooled data for HAQ-DI and DAS28 (CRP) across interventional trials. RESULTS: Across all four studies, 731 patients received abatacept plus one non-MTX csDMARD (hydroxychloroquine n = 152; sulfasalazine n = 123; azathioprine n = 59; and leflunomide n = 397) and 2382 patients received abatacept plus MTX. Mean changes from baseline in HAQ-DI scores for abatacept plus MTX (all csDMARDs pooled) vs abatacept plus a non-MTX csDMARD were -0.54 vs -0.44 (ATTAIN), -0.43 vs -0.43 (ASSURE), and -0.39 vs -0.36 (ARRIVE). Mean changes from baseline in DAS28 (CRP) and ACR response rates were also similar with abatacept plus MTX or non-MTX csDMARDs. Data for individual non-MTX csDMARDs (pooled across studies) and real world data were consistent with these findings. Rates of treatment-related adverse events and serious adverse events, respectively, for abatacept plus one non-MTX csDMARD vs abatacept plus MTX were 35.7% vs 41.7% and 2.4% vs 2.3% (ATTAIN), 58.0% vs 55.9% and 4.2% vs 1.7% (ASSURE), and 38.1% vs 44.3% and 0.6% vs 2.9% (ARRIVE). CONCLUSIONS: Abatacept in combination with non-MTX csDMARDs is clinically effective and well tolerated in patients with moderate-to-severe RA, providing similar benefits to those seen with abatacept plus MTX. TRIAL REGISTRATION: ClinicalTrials.gov NCT00048581 . Registered 2 November 2002. ClinicalTrials.gov NCT00048932 . Registered 11 November 2002. ClinicalTrials.gov NCT00124982 . Registered 30 June 2005. ClinicalTrials.gov NCT02109666 . Registered 8 April 2014. PMID- 29329603 TI - Green Tobacco Sickness among Brazilian farm workers and genetic polymorphisms. AB - OBJECTIVE: Green Tobacco Sickness (GTS) is an occupational illness caused by dermal absorption of nicotine from tobacco leaves. It affects thousands of farm workers worldwide. Brazil is the second tobacco producer in the world; despite this, there are few studies on GTS among Brazilian harvesters. This study aimed to determine the prevalence of GTS among a population of tobacco workers from a producing area in northeastern Brazil and investigate whether the occurrence of the disease was influenced by factors such age, gender and smoking status. In addition, it was investigated if there was association between the onset of GTS and genetic polymorphisms in genes that encode some detoxification enzymes. A semi-structured questionnaire was used to collect demographic, behavioral and occupational data from the referred workers. Polymorphisms were tested through the Polymerase Chain Reaction technique. RESULTS: The total prevalence of GTS found was 56.9%, with a significant difference between genders (71.7% for women and 35.3% for men, p < 0.0001). No association was identified between the investigated polymorphisms and GTS. This study confirms the occurrence of GTS among tobacco harvesters in Brazil with high prevalence. The investigation suggests the need to take preventive measures to protect tobacco workers against this disease. PMID- 29329607 TI - The genus Liriope: Phytochemistry and pharmacology. AB - Liriope (Liliaceae) species have been used as folk medicines in Asian countries since ancient times. From Liriope plants (8 species), a total of 132 compounds (except polysaccharides) have been isolated and identified, including steroidal saponins, flavonoids, phenols, and eudesmane sesquiterpenoids. The crude extracts or monomeric compounds from this genus have been shown to exhibit anti-tumor, anti-diabetic, anti-inflammatory, and neuroprotective activities. The present review summarizes the results on phytochemical and biological studies on Liriope plants. The chemotaxonomy of this genus is also discussed. PMID- 29329608 TI - Polyphenols isolated from Acacia mearnsii bark with anti-inflammatory and carbolytic enzyme inhibitory activities. AB - The present study was designed to characterize the polyphenols isolated from Acacia mearnsii bark crude extract (B) and fractions (B1-B7) obtained by high speed counter-current chromatography (HSCCC) and evaluate their anti-inflammatory and carbolytic enzymes (alpha-glucosidase and alpha-amylase) inhibitory activities. Fractions B4, B5, B6, B7 (total phenolics 850.3, 983.0, 843.9, and 572.5 mg.g-1, respectively; proanthocyanidins 75.7, 90.5, 95.0, and 44.8 mg.g-1, respectively) showed significant activities against reactive oxygen species (ROS), nitric oxide (NO) production, and expression of pro-inflammatory genes interleukin-1beta (IL-1beta) and inducible nitric oxide synthase (iNOS) in a lipopolysaccharide (LPS)-stimulated mouse macrophage cell line RAW 264.7. All the extracts suppressed alpha-glucosidase and alpha-amylase activities, two primary enzymes responsible for carbohydrate digestion. A. mearnsii bark samples possessed significantly stronger inhibitory effects against alpha-glucosidase enzyme (IC50 of 0.4-1.4 MUg.mL-1) than the pharmaceutical acarbose (IC50 141.8 MUg.mL-1). B6 and B7 (IC50 17.6 and 11.7 MUg.mL-1, respectively) exhibited alpha amylase inhibitory activity as efficacious as acarbose (IC50 15.4 MUg.mL-1). Moreover, B extract, at 25 ug.mL-1, significantly decreased the non-mitochondrial oxidative burst that is often associated with inflammatory response in human monocytic macrophages. PMID- 29329609 TI - Garcinia xanthochymus extract protects PC12 cells from H2O2-induced apoptosis through modulation of PI3K/AKT and NRF2/HO-1 pathways. AB - The aim of the present study was to investigate the protective effects and underlying mechanisms of Garcinia xanthochymus, a perennial medicinal plant native to Yunnan, China, against H2O2-induced oxidative damage in rat pheochromacytoma PC12 cells. Preincubation of PC12 cells with fruit EtOAc fraction (fruit-EFr., 12.5-50 umol.L-1) of G. xanthochymus for 24 h prior to H2O2 exposure markedly improved cell viability and increased the activities of antioxidant enzymes (superoxide dismutase, catalase, and heme oxygenase-1 [HO 1]), prevented lactate dehydrogenase release and lipid peroxidation malondialdehyde production, attenuated the decrease of matrix metalloproteinases (MMP), and scavenged reactive oxygen species (ROS). Fruit-EFr. also reduced BAX and cytochrome C expression and improved BCL-2 expression, thereby decreasing the ratio of BAX to BCL-2. Fruit-EFr. activated the nuclear translocation of NRF2 to increase HO-1 and induced the phosphorylation of AKT. Its cytoprotective effect was abolished by LY294002, a specific inhibitor of PI3K. Taken together, the above findings suggested that fruit-EFr.of G. xanthochymus could enhance cellular antioxidant defense capacity, at least in part, through upregulating HO-1 expression and activating the PI3K/AKT pathway and that it could suppress H2O2 induced oxidative damage via PI3K/AKT and NRF2/HO-1 signaling pathways. PMID- 29329610 TI - Bacopa monnieri extracts prevent hydrogen peroxide-induced oxidative damage in a cellular model of neuroblastoma IMR32 cells. AB - Neurodegenerative diseases are the consequences of imbalance between the production of oxidative stress and its nullification by cellular defense mechanisms. Hydrogen peroxide (H2O2), a precursor of deleterious reactive oxygen species, elicits oxidative stress, resulting in severe brain injuries. Bacopa monnieri is well known for its nerve relaxing and memory enhancing properties. The present study was designed to evaluate the protective effects of extracts from Bacopa monnieri against H2O2 induced oxidative stress using a cellular model, neuroblastoma IMR32 cell line. The protective potential of methanolic, ethanolic, and water extracts of B. monnieri (BM-MEx, BM-EEx, and BM-WEx) was evaluated using MTT assay. Although, all the B. monnieri extracts were found to protect cells against H2O2-mediated stress but BM-MEx showed significantly greater protection. UPLC analysis of BM-MEx revealed various polyphenols, including quercetin, catechin, umbelliferone, and caffeic acid predominance. Further, BM-MEx was found to possess considerable greater neuroprotective potential in comparison to the standard polyphenols such as quercetin, catechin, umbelliferone, and caffeic acid. The levels of antioxidant enzymes were significantly elevated after the pretreatment of BM-MEx and quercetin. The expression levels of oxidative stress markers, such as NF200, HSP70, and mortalin, were significantly alleviated after the pretreatment of BM-MEx as shown by immunofluorescence and RT-PCR. In conclusion, the present study demonstrated the protective effects of BM-MEx, suggesting that it could be a candidate for the development of neuropathological therapeutics. PMID- 29329611 TI - Early intervention with Didang decoction delays macrovascular lesions in diabetic rats through regulating AMP-activated protein kinase signaling pathway. AB - The study aimed to investigate the intervening role of Didang decoction (DDD) at different times in macrovascular endothelial defense function, focusing on its effects on the AMP-activated protein kinase (AMPK) signaling pathway. The effects of DDD on mitochondrial energy metabolism were also investigated in rat aortic endothelial cells (RAECs). Type 2 diabetes were induced in rats by streptozotocin (STZ) combined with high fat diet. Rats were randomly divided into non intervention group, metformin group, simvastatin group, and early-, middle-, late stage DDD groups. Normal rats were used as control. All the rats received 12 weeks of intervention or control treatment. Western blots were used to detect the expression of AMP-activated protein kinase alpha1 (AMPKalpha1) and peroxisome proliferator-activated receptor 1alpha (PGC-1alpha). Changes in the intracellular AMP and ATP levels were detected with ELISA. Real-time-PCR was used to detect the mRNA level of caspase-3, endothelial nitric oxide synthase (eNOS), and Bcl-2. Compared to the diabetic non-intervention group, a significant increase in the expression of AMPKalpha1 and PGC-1alpha were observed in the early-stage, middle stage DDD groups and simvastatin group (P < 0.05). The levels of Bcl-2, eNOS, and ATP were significantly increased (P < 0.05), while the level of AMP and caspase-3 were decreased (P < 0.05) in the early-stage DDD group and simvastatin group. Early intervention with DDD enhances mitochondrial energy metabolism by regulating the AMPK signaling pathway and therefore may play a role in strengthening the defense function of large vascular endothelial cells and postpone the development of macrovascular diseases in diabetes. PMID- 29329612 TI - Clavuridins A and B, two new trinor-guaiane sesquiterpenes isolated from the Xisha soft coral Clavularia viridis. AB - In the present study, two new trinor-guaiane sesquiterpenes, named clavuridins B (1), and A (2), along with three known sesquiterpenes (3-5), were isolated from the Xisha soft coral Clavularia viridis. Their structures and absolute configurations were determined on the basis of spectroscopic analysis, X-ray diffraction analysis with Cu Kalpha radiation and by comparison with related model compounds. Compounds 1 and 3-5 were evaluated for their cytotoxic activity. PMID- 29329613 TI - New diterpenoids isolated from Leonurus japonicus and their acetylcholinesterase inhibitory activity. AB - Three new labdane diterpenoids, leojaponicone A (1), isoleojaponicone A (2) and methylisoleojaponicone A (3), were isolated from the herb of Leonurus japonicus. The chemical structures of these secondary metabolites were elucidated on the basis of 1D and 2D NMR, including HMQC, and HMBC spectroscopic techniques. All the new compounds were tested in vitro for their acetylcholinesterase and alpha glucosidase inhibitory activity. Compounds 1-3 exhibited low inhibitory effects on alpha-glucosidase with respect to acarbose and exhibited high inhibitory effects on acetylcholinesterase with respect to huperzine A. PMID- 29329614 TI - Bioassay-guided isolation of novel and selective urease inhibitors from Diospyros lotus. AB - Two new dimeric naphthoquinones, 5',8'-dihydroxy-6,6'-dimethyl-7,3'-binaphthyl 1,4,1',4'-tetraone (1; Di-naphthodiospyrol D) and 5',8'-dihydroxy-5,8-dimethoxy 6,6'-dimethyl-7,3'-binaphthyl-1,4,1',4'-tetraone (2; Di-naphthodiospyrol E), along with known naphthoquinones diospyrin (3) and 8-hydroxy diospyrin (4) were isolated from the chloroform fraction of extract of Diospyros lotus roots. Their structures were elucidated by advanced spectroscopic analyses, including HSQC, HMBC, NOESY, and J-resolved NMR experiments. The fractions and compounds 1-4 were evaluated for urease activity and phosphodiesterase-I, carbonic anhydrase-II and alpha-chymotrypsin enzyme inhibitory activities. Compounds 1 and 2 and their corresponding fractions showed significant and selective inhibitory effects on urease activities. The IC50 values of 1 and 2 were 260.4 +/- 6.37 and 381.4 +/- 4.80 umol.L-1, respectively, using thiourea (IC50 = 21 +/- 0.11 umol.L-1) as the standard inhibitor. This was the first report demonstrating that the naphthoquinones class showed urease inhibition. PMID- 29329615 TI - Synthesis and cytotoxicity evaluation of 3-amino-2-hydroxypropoxygenistein derivatives. AB - Soy isoflavones exhibit various biological activities, such as antioxidant, anti tumor, anti-inflammatory, and cardiovascular protective effects. The present study was designed to investigate the effects of sixteen synthesized 3-amino-2 hydroxypropoxy genistein derivatives on cell proliferation and activation of Nrf2 (Nuclear factor erythroid 2-related factor 2)/ARE (antioxidant response elements) pathway in human cancer cell lines. Most of the tested compounds exerted greater cytotoxic activity than genistein, as measured by MTT assay. Moreover, compound 8c showed the highest ARE-luciferase reporter activity among the test compounds. It strongly promoted Nrf2 nuclear translocation and up-regulated the expression of total Nrf2 and downstream targets NQO-1 and HO-1 at protein level. The present study may provide a basis for the application of isoflavone derivatives as Nrf2/ARE pathway inducers for cancer therapy and cancer prevention. PMID- 29329616 TI - Scientific integrity includes the rigour of the methods. PMID- 29329617 TI - DNA detection of Trypanosoma evansi: Diagnostic validity of a new assay based on loop-mediated isothermal amplification (LAMP). AB - Trypanosoma evansi (T. evansi) is the most widely spread pathogenic trypanosome in the world. The control of trypanosomiasis depends on accurate diagnosis and effective treatment. Focusing on the presence of T. evansi in Asia, we developed a detection assay based on tracing phosphate ions (Pi) generated during LAMP targeting the variant surface glycoprotein (VSG) gene of Rode Trypanozoon antigenic type 1.2 (RoTat 1.2 VSG). The diagnostic potential as well as the use of the assay as a test-of-cure method after berenil treatment, was assessed in mice at different time points of infection. In addition, 67 buffalo blood collected from Tongling county, Anhui province, as well as 42 cattle sera from the Shanghai area, were used to evaluate the diagnostic validity of the test. The detection limit of the novel LAMP assay was determined to be as low as 1 fg of T. evansi DNA, while the reaction time for the test was only 30min. Hence it outperforms both microscopy and PCR. In the test-of-cure assessment, successful berenil mediated cure could be confirmed within 48h after treatment. This offers a tremendous advantage over conventional antibody-based diagnostic tools in which successful cure only can be confirmed after months. In the cattle and buffalo screening, the LAMP was able to detect a false-negative determined sample, wrongly classified in a conventional microscopy and PCR screening. Finally, no cross-reactivity was observed with other zoonotic parasites, such as T. evansi type B, T. congolense, T. brucei, Schistosoma japonicum, Plasmodium falciparum, Leishmania donovani, Toxoplasma gondii and Angiostrongylus cantonensis. We conclude that the novel LAMP assay is sensitive, specific and convenient for field use, particularly in areas where infection incidence has become extremely low. The LAMP assay could be used as a tool for trypanosomiasis control and elimination strategies in areas where T. evansi Type A infections are causing a threat to livestock farming. PMID- 29329618 TI - Vaccination against Fasciola hepatica using cathepsin L3 and B3 proteases delivered alone or in combination. AB - No licensed vaccine is currently available for prevention of Fasciola hepatica infections. However, considering the alarming increase in drug resistance, there is an urgent need for a safe and fully effective vaccine against fasciolosis. Here, we tested if cathepsins L (FhCL3-1, FhCL3-2) and B (FhCB3) secreted by juvenile liver flukes are viable vaccine targets when delivered alone or in combination in a rat model. Since control over the early immune response is crucial for parasite's establishment in its host, it was hypothesised that targeting fluke juvenile stages may prove beneficial. Moreover, it was assumed that selected antigens will act in a cumulative manner to interfere with liver fluke migration and thereby will reduce F. hepatica infection. Recombinant FhCL3 1 and FhCL3-2 delivered alone reduced liver fluke burdens by 47 % and 63 %, respectively. A trivalent vaccine containing rFhCL3-1/CL3-2/CB3 did not increase the protective vaccine efficacy compared to the rFhCL3-2 vaccinated group (53 %), although, reductions in liver fluke wet weight (statistically significant) and liver damage score were most pronounced. Further, the highest IgG1 and IgG2a levels were seen in rFhCL3-2 vaccinated rats, the group for which the highest reduction in worm burden was demonstrated. Moreover, IgG1 and IgG2a levels in vaccinated rats were significantly elevated compared to those reported for control groups up to 4 week post-infection. While the mechanism of protection remains unknown, it appears that it depends on vaccine-induced antibodies directed against cathepsins. The obtained results imply that F. hepatica juvenile specific cathepsins are promising vaccine candidates that induce responses that successfully target early migratory liver fluke stages. Now, the challenge is to evaluate these juvenile-specific cathepsins for use in livestock. PMID- 29329619 TI - Hepatic fibropoiesis in dogs naturally infected with Leishmania (Leishmania) infantum treated with liposome-encapsulated meglumine antimoniate and allopurinol. AB - Hepatic fibropoiesis in canine visceral leishmaniasis (CVL) were evaluated by histological (morphometrical collagen deposition) and immunohistochemical assays characterizing alpha-actin (alpha-SMA), vimentin, calprotectin (L1 antigen), and TGF-beta in 46 naturally infected dogs with Leishmania infantum treated with liposome-encapsulated meglumine antimoniate and allopurinol separately and in combination. Six treatment groups were defined: meglumine antimoniate encapsulated in nanometric liposomes (LMA), allopurinol (ALLOP); liposome encapsulated meglumine antomoniate combined with allopurinol (LMA+ALLOP); empty liposomes (LEMP); empty liposomes combined with allopurinol (LEMP+ALLOP) and saline. Relative liver weight was lower in LMA, LMA+ALLOP, and ALLOP groups compared to the LEMP control. Significantly lower granulomatous chronic inflammatory reaction was seen in the ALLOP group compared to a control group. Calprotectin was lowest in liver of those dogs showing lower numbers of intralobular hepatic granulomas. Collagen deposits were significantly higher in LMA compared to ALLOP, LEMP+ALLOP, and Saline groups. LMA+ALLOP group collagen deposition was higher than dogs treated only with allopurinol. Immunohistochemical analysis showed significant higher alpha-SMA in hepatic stellate cells (HSCs), hepatic perisinusoidal cells, in control groups than LMA+ALLOP and LEMP+ALLOP. Alpha-actin and Vimentin positive cells were diffusely distributed throughout the liver parenchyma in the hepatic lobule, mainly in HSCs. Vimentin expression was significantly higher in the saline group than in the ALLOP group. Our data suggest that allopurinol inhibits HSC and results in lower collagen deposits in liver during CVL progression, as supported by the significantly lower expression of TGF-beta in the ALLOP group compared to other groups. Results demonstrated that treatment with allopurinol inhibited chronic granulomatous inflammatory reaction and hepatic fibrosis in CVL. PMID- 29329621 TI - First parasitological, histopathological and molecular characterization of Echinococcus vogeli Rausch and Bernstein, 1972 from Cuniculus paca Linnaeus, 1766 in the Cerrado biome (Mato Grosso do Sul, Brazil). AB - Polycystic echinococcosis (PE) is caused by Echinococcus vogeli metacestodes (larval stage) in Neotropical countries. E. vogeli is trophically-transmitted between predators bush dogs (Speothos venaticus) and prey pacas (Cuniculus paca). In Brazil, reported PE cases are restricted to the Amazon biome. In this study, metacestodes from a paca hunted in Mato Grosso do Sul state (Cerrado biome) were identified morphological and histopathological techniques and further confirmed by molecular testing (sequencing of cytochrome C oxidase subunit I (cox1) gene) for the first time. Images of the whole liver showed superficial bubble-like hepatic masses. The parasitological analysis revealed large hooks (41.3 +/- 1.2 MUm length/12.8 +/- 0.8 MUm width) and small hooks (33.0 +/- 1.5 MUm length/11.1 +/- 1.2 MUm width), consistent with E. vogeli. Microscopically, the liver showed protoscoleces, a thick laminated layer, fibrosis, and inflammatory infiltrate in the adventitial layer. The DNA sequencing confirmed E. vogeli with 99% homology with sequences deposited in the GenBank. In addition, this finding greatly extends the geographic range of animal polycystic echinococcosis into the Cerrado. It is likely to occur in new biomes, where bush dogs and pacas share a given area in a trophic relationship. PMID- 29329620 TI - Determination and validation of discriminating concentration of ivermectin against Rhipicephalus microplus. AB - Rhipicephalus microplus, the major cattle tick species of India is prevalent all over the country and causes huge economic loss directly or indirectly to the dairy industries. Chemical acaricides are playing an important role in managing tick infestations on livestock for many years and consequently, resistance to commonly used organophosphate (OP) and synthetic pyrethroid (SP) compounds has been reported. Subsequently, ivermectin (IVM) has been emerged as an alternative to manage OP and SP resistant ticks. However, with the increase of use during the last 5-8 years, there is a possibility of development of resistance and thus there is an urgent need to develop a robust resistance monitoring tool to safeguard the drug. Lethal concentrations for 50 and 95% mortality of treated ticks were determined to work out discriminating concentration (DC) in order to diagnose resistance in the field situation. The DC (2 x LC95) was determined as 93.54 ppm using an established reference susceptible IVRI-1 line of R. microplus adopting adult immersion test. For validation of DC, the resistance status was checked in seven tick isolates of R. microplus collected from northern and eastern regions of India. The RR50 and RR95 values of the field isolates against ivermectin were determined and were in the range of 1.56-8.25 and 1.93-27.58, respectively. All the collected isolates were found to have higher lethal concentration and resistance ratio in comparison to reference susceptible IVRI-1 tick line (LC50 = 21.68, LC95 = 46.77 ppm, RR = 1.0). Amongst the field isolates, the isolate collected from Fatehgarh Sahib district (FTG) of Punjab state showed highest RR50 of 8.25 indicating high level of resistance to IVM. The generated DC will be used for IVM resistance characterization of ticks infesting cattle in different parts of the country. PMID- 29329622 TI - Prevalence and molecular characterization of Giardia duodenalis in cattle and sheep from the Qinghai-Tibetan Plateau Area (QTPA), northwestern China. AB - Giardia duodenalis is an important intestinal protozoan parasite with a wide range of hosts, including humans, livestock and wildlife. The purpose of this study was to determine the prevalence of G. duodenalis infections among cattle and sheep in the Qinghai-Tibetan Plateau Area (QTPA) and to assess the potential risk of the zoonotic transmission of this pathogen. A total of 454 stool specimens were collected and examined using the nested PCR method based on the G. duodenalis SSUrRNA gene fragment. Thirty-nine out of 389 cattle specimens examined were positive (10%) for the G. duodenalis infection. After the sequence analysis of the SSUrRNA gene, all detected G. duodenalis belong to assemblage E. No G. duodenalis infections were found in the 65 investigated samples from sheep. Our data therefore indicates that G. duodenalis is a common parasite in cattle in the QTPA, China and that cattle appear to be a reservoir of G. duodenalis for other animals and the environmental water supplies in the area. PMID- 29329623 TI - Parasite control strategies used by equine owners in the United States: A national survey. AB - The widespread occurrence of anthelmintic resistance in equine parasites across the world has led to recommendations of fecal egg count-based parasite programs to reduce treatment intensity and thereby delay further development of resistance as much as possible. The most recent study describing equine parasite control in the United States was conducted 20 years ago, and little is known about current strategies employed. This study was part of the National Animal Health Monitoring Systems (NAHMS) Equine 2015 Study, and aimed to describe equine parasite control strategies in the U.S. and evaluate to which extent respondents were in compliance with current guidelines. The study was carried out in 28 states, representing 70.9% of all equine operations with at least five equids present. Two questionnaires were administered, either by mail or delivered in person by veterinary medical officers. Participants provided specific details of their operation and were asked questions about strategies for anthelmintic therapy and diagnostic testing. A total of 380 operations provided data regarding their parasite control practices. Most respondents dewormed 2-3 times a year with ivermectin being the most commonly used anthelmintic. About 22% of respondents used fecal egg counts (FEC) in some form, with less than 10% using them on a regular basis. Less than 5% made use of fecal egg count reduction tests (FECRT). These results suggest little change since the last nationwide survey was conducted in 1998, as the majority of respondents did not report using FECs. This is in stark contrast to recent European surveys, where 50-60% of respondents were using FECs routinely. However, the anthelmintic treatment intensity appears to have been lowered compared to 1998. Taken together, these results suggest a continuing need for education and outreach regarding sustainable parasite control. PMID- 29329624 TI - Apparent prevalence of and risk factors for infection with Ostertagia ostertagi, Fasciola hepatica and Dictyocaulus viviparus in Swiss dairy herds. AB - Infections with helminth parasites can negatively affect performance of dairy cows. Knowledge on infection intensity, spatial distributions and risk factors are key to develop targeted treatment strategies. Canada and most EU countries have conducted large investigations, but respective data for Switzerland were missing. We now performed a bulk tank milk serosurvey for Ostertagia ostertagi, Fasciola hepatica, and Dictyocaulus viviparus on a total of 1036 voluntarily participating dairy herds that were sampled at confinement periods, i.e. in winter 2014/15 or 2015/16, respectively. All samples were analyzed with commercial ELISAs for antibodies (AB) against O. ostertagi and F. hepatica, and those of the first sampling period additionally with an in-house ELISA for AB against D. viviparus. Testing for the latter parasite was not done in the second year of the study, as the sampling period might have missed infections due to the short lived nature of specific antibodies. The possible influence of geographic, climatic, and farm management variables on AB levels were assessed for each parasite using scanning cluster and multiple regression analysis. Overall seroprevalence for O. ostertagi was 95.5% (95% C.I.: 94.0-96.6), with a mean optical density ratio (ODR) of 0.83, for F. hepatica 41.3% (95% C.I.: 38.3-44.4), and for D. viviparus 2.9% (95% C.I.: 1.6-4.7). There were no significant differences between the two sampling periods. For all parasites, significant geographic clusters of higher AB levels could be established. Furthermore, AB levels against all three parasites were positively correlated with each other, indicating either cross-reactions or co-infections. For O. ostertagi, herd size and percentage of pasture in the ration were positively correlated with AB levels. For F. hepatica, altitude above sea level (a.s.l.) positively, and milk production per cow and year was negatively correlated with AB levels. This work provides baseline data for further studies performing in-depth risk factor analysis and investigating management as well as targeted treatment options to control the parasites. PMID- 29329625 TI - Immune development and performance characteristics of Romney sheep selected for either resistance or resilience to gastrointestinal nematodes. AB - Immunological and performance characteristics were explored in Romney sheep from lines selected for either resistance or resilience to parasite infection. At a mean 78 days-of-age, twin lambs from a line selected for resistance (RT) and lambs from a line selected for resilience (RL) were infected with the intestinal nematode Trichostrongylus colubriformis for 100 days (I) while their twin remained as an uninfected control (C). Compared with RL, RT animals had lower levels of circulating CD4+ T-cells (P = 0.003) but a greater proportion of these were activated (CD4+CD25+) in response to infection (P = 0.007). Differences between the lines in humoral immune responses to nematode infection varied with higher levels of T. colubriformis specific immunoglobulin (Ig) E in RT-I than RL I (P = 0.002) but similar levels of both IgG (P = 0.926) and IgA (P = 0.321) responses. Temporal differences in the immune response also existed between the lines with RT-I animals displaying an earlier peak and more rapid reduction in FEC and an earlier peak in T. colubriformis specific IgA. In addition, compared with their RT-C and RL-C counterparts, infection caused a 22% reduction in feed intake from day 56 (P = 0.001) with total feed intake reduced by 15% and 9% for RT-I and RL-I, respectively. Cumulative liveweight gain was greatest for RL animals (P = 0.026) and relative to RT-C and RL-C was reduced by 5.8 kg and 4.9 kg for RT-I and RL-I, respectively. Overall, the selection lines appear to have differences in immunological characteristics that are both dependent on, and independent of parasite infection. Further, the difference in growth in the uninfected animals coupled with the similar cost of infection suggests the lower liveweight gain of RT-I compared with RL-I may be due to inherent differences between the lines in their growth potential, rather than a greater cost of infection in animals selected for resistance. PMID- 29329626 TI - Applicability of FLOTAC(r) technique in recovering equine strongyle larvae in the pasture: A comparison study. AB - The FLOTAC(r) technique represents a highly sensitive method for the isolation of oocysts, eggs, and larvae of parasites in faeces. This assay could be used for detecting free-living stages of nematodes in the pasture but no attempt has been assessed so far. Therefore, the performance of FLOTAC(r) technique for isolating infective larvae of nematodes in the environment was investigated and compared with the spontaneous sedimentation (SST) and centrifugal sedimentation (CST) techniques. The study was conducted in a horse farm located in northeastern Brazil, where the occurrence of strongyle larvae had been previously reported. Pasture samplings were collected monthly from January to May 2016 in a 376 m2 crop area harvested with the Guinea grass Panicum cultivar Massai. The recovery of third-stage larvae (L3) was performed using the FLOTAC(r), SST and CST techniques. Values of Cohen's kappa coefficient, sensitivity, specificity, positive and negative predictive values, and accuracy of each technique were assessed. Although strongyle larvae were evenly detected, with the FLOTAC(r) technique yielded the highest number of positive samples (i.e., 41%, 41/100, p < .0001). The main parasites isolated belonged to the Cyathostominae and Strongylinae subfamilies. Based on these results, the FLOTAC(r) technique should be considered as practical and safe method for the isolation of nematode larvae in the pasture, thus opening a new potential use for this tool in the field. PMID- 29329627 TI - Comparative efficacy of curcumin and paromomycin against Cryptosporidium parvum infection in a BALB/c model. AB - Cryptosporidium is a ubiquitous protozoan parasite causing gastrointestinal disorder in various hosts worldwide. The disease is self-limiting in the immunocompetent but life-threatening in immunodeficient individuals. Investigations to find an effective drug for the complete elimination of the Cryptosporidium infection are ongoing and urgently needed. The current study was undertaken to examine the anti-cryptosporidial efficacy of curcumin in experimentally infected mice compared with that of paromomycin. Oocysts were isolated from a pre-weaned dairy calf and identified as Cryptosporidium parvum using a nested- polymerase chain reaction (PCR) on Small subunit ribosomal ribonucleic acid (SSU rRNA) gene and sequencing analysis. One hundred and ten female BALB/c mice were divided into five groups. Group 1 was infected and treated with curcumin; Group 2 infected and treated with paromomycin; Group 3 infected without treatment; Group 4 included uninfected mice treated with curcumin, and Group 5 included uninfected mice treated with distilled water for 11 successive days, starting on the first day of oocyst shedding. The oocyst shedding was recorded daily. At days 0, 3, 7, and 11 of post treatments, five mice from each group were killed humanly; jejunum and ileum tissue samples were processed for histopathological evaluation and counting of oocyst on villi, simultaneously. Furthermore, total antioxidant capacity (TAC) and malondialdehyde (MDA) concentrations in affected tissues were also measured in different groups. By treatments, tissue lesions and the number of oocyst on villi of both jejunum and ileum were decreased with a time-dependent manner. In comparison with Group 3, oocyst shedding was stopped at the end of treatment period in both groups 1 and 2 without recurrence at 10days after drug withdrawal. Also, TAC was increased and the MDA concentrations were decreased in Group 1. Moreover, paromomycin showed acceptable treatment outcomes during experiment and its anti cryptosporidial activity was faster than curcumin. The results confirmed the anti cryptosporidial and antioxidant activity of curcumin against C. parvum and further evaluation of immunosuppressed animal models needs to be carried out. PMID- 29329628 TI - Spirocerca lupi induced oesophageal neoplasia: Predictors of surgical outcome. AB - Canine spirocercosis is caused by the nematode Spirocerca lupi. Migration results in oesophageal fibro-inflammatory nodules that may undergo neoplastic transformation. No studies have assessed pre- or post-surgical prognostic indicators in dogs that undergo intervention for S. lupi induced oesophageal neoplasia. This observational, multi-center study aimed to assess the outcome of dogs with Spirocerca induced sarcoma undergoing endoscopic-guided ablation (n = 12) or surgery (n = 18), and identify prognostic indicators. Parameters evaluated included: age, weight, gender, presenting complaints, duration of clinical signs, complete blood count, serum biochemistry, neoplasia size, placement of percutaneous endoscopically-placed gastrostomy tube, histopathological mitotic indices, days to discharge and chemotherapy administration. Kaplan-Meier survival curves showed no difference in survival between ablation and surgery {(median: 73.5 days (range: 0-1511) vs. 108 days (range: 0-1550), respectively (p = 0.982)}. Reduced survival was documented in patients presenting with weight loss (P = 0.027), hypochromasia (MCHC <33 g/dL, P = 0.023) or leucocytosis (>15 * 109/L, P = 0.017) with a hazard ratio of 2.51 (CI95% = 1.071-6.018, P = 0.034), 2.71 (CI95% = 1.10-6.65, P = 0.03) and 4.39 (CI95%: 1.21-15.97, P = 0.025) respectively. In the dogs surviving more than 21 days, Ht <36% and leucocytosis >15.0 * 109/L at presentation were associated with reduced survival (p = 0.016, p = 0.021 respectively) and hazard ratio of 3.29 (CI95% = 1.18-9.2, P = 0.023) and 3.81 (CI95% = 1.15-12.55, P = 0.028) respectively. Intra-intervention-group survival analysis identified increased survival time in dogs receiving chemotherapy, but only within the surgical group (P = 0.02).The hospitalisation time of dogs undergoing ablation (median: 0 days, range: 0-4) was significantly shorter than dogs undergoing surgery (9 days, 1-21) (P < 0.001). In this study, no clear benefit was identified for surgery, thus when ablation is technically possible it should be considered advantageous, as hospitalisation time is significantly shorter. Weight loss, hypochromasia and leucocytosis were identified as long-term prognostic indicators at presentation. PMID- 29329629 TI - Estimates of repeatability and correlations of hemoparasites infection levels for cattle reared in endemic areas for Rhipicephalus microplus. AB - Rhipicephalus microplus is a vector of cattle tick fever, a disease caused by the protozoans Babesia bovisand B. bigemina, and also anaplasmosis, produced by the Rickettsiales Anaplasma marginale. These tick-borne pathogens cause considerable losses to Brazilian livestock breeders and represent an obstacle to the expanded use of taurine breeds due to their higher sensitivity to ticks and hemoparasites compared to zebu breeds. Differences in the susceptibility to hemoparasites were also verified within breeds, suggesting that may be possible to select a most resistant phenotype. Therefore, repeatability of R. microplus counts and copy number of hemoparasites DNA were estimated, along with correlations between themselves, aiming to verify if those measures can be used as parameters to classify animals according to their parasite resistance degrees. Forty-two Canchim females kept on pastures naturally infested by ticks were evaluated for the level of infestation by R. microplus and infection by B. bovis, B. bigemina, and A. marginale. Twenty-four evaluations were performed once a month, for adult female ticks counts and blood samplings. The experimental period was divided into four phases, according to the animals age range: Phase 1: 8 to 13 months (collections 1 to 6); phase 2: 14 to 19 months (collections 7 to 12); phase 3: 20 to 25 months (collections 13 to 18), and phase 4: 26 to 31 months (collections 19 to 24). Blood samples were submitted to absolute quantification of hemoparasites DNA sequences using qPCR. The hemoparasite and tick counts data were transformed for normalization and were analyzed using mixed models. Among three species of hemoparasites studied, A. marginale presented the highest level of infection. During phase 3, B. bigemina presented higher infection levels (p < 0.05) compared to B. bovis, whereas no differences were observed in other phases. Estimated repeatabilities for parasite infection levels varied from low to moderate during our experiment. There were low correlations between tick counts and parasite infection levels, and between parasite infection levels from different species by themselves. Based on these results, under conditions of the present study, we suggest that it is possible to identify animals presenting a most resistant phenotype against infection by both hemoparasites and ticks. Moreover, the animal age may be an important factor related to resistance against these pathogens. The data obtained shed more light on the resistance to hemoparasites studied. PMID- 29329630 TI - Reply. PMID- 29329631 TI - Comments on: Walsh and Tobias, "Low-Pressure Pericardial Tamponade: Case Report and Review of the Literature". PMID- 29329633 TI - Pediatric Adnexal Torsion: Not Just a Postmenarchal Problem. PMID- 29329634 TI - Pediatric Adnexal Torsion. PMID- 29329635 TI - Converting the Easy Internal Jugular (IJ) to a Central Line. PMID- 29329636 TI - The Unique Environmental Influences of Acute Care Settings on Patient and Physician Well-Being: A Call to Action. PMID- 29329638 TI - Role of the IL-33/ST2L axis in colorectal cancer progression. AB - Interleukin-33 (IL-33) has been identified as a natural ligand of ST2L. IL-33 primarily acts as a key regulator of Th2 responses through binding to ST2L, which is antagonized by soluble ST2 (sST2). The IL-33/ST2L axis is involved in various inflammatory pathologies, including ulcerative colitis (UC). Several recent investigations have also suggested that the IL-33/ST2L axis plays a role in colorectal cancer (CRC) progression. In CRC, tumor- and stroma-derived IL-33 may activate ST2L on various cell types in an autocrine and paracrine manner. Although several findings support the hypothesis that the IL-33/ST2L axis positively regulates CRC progression, other reports do not; hence, this hypothesis remains controversial. At any rate, recent studies have provided overwhelming evidence that the IL-33/ST2L axis plays important roles in CRC progression. This review summarizes the role of the IL-33/ST2L axis in the UC and CRC microenvironments. PMID- 29329639 TI - Vestibular stimulation makes people more egocentric. PMID- 29329637 TI - Transcriptomic evidence of immune activation in macroscopically normal-appearing and scarred lung tissues in idiopathic pulmonary fibrosis. AB - Idiopathic pulmonary fibrosis (IPF) is a fatal lung disease manifested by overtly scarred peripheral and basilar regions and more normal-appearing central lung areas. Lung tissues from macroscopically normal-appearing (IPFn) and scarred (IPFs) areas of explanted IPF lungs were analyzed by RNASeq and compared with healthy control (HC) lung tissues. There were profound transcriptomic changes in IPFn compared with HC tissues, which included elevated expression of numerous immune-, inflammation-, and extracellular matrix-related mRNAs, and these changes were similar to those observed with IPFs compared to HC. Comparing IPFn directly to IPFs, elevated expression of epithelial mucociliary mRNAs was observed in the IPFs tissues. Thus, despite the known geographic tissue heterogeneity in IPF, the entire lung is actively involved in the disease process, and demonstrates pronounced elevated expression of numerous immune-related genes. Differences between normal-appearing and scarred tissues may thus be driven by deranged epithelial homeostasis or possibly non-transcriptomic factors. PMID- 29329640 TI - Capturing real-life forgetting in transient epileptic amnesia via an incidental memory test. AB - Transient epileptic amnesia (TEA) is an epileptic syndrome characterized by recurrent, brief episodes of amnesia. Patients with TEA often complain of interictal (between attacks) retention deficits, characterised by an 'evaporation' of memories for recent events over days to weeks. Clinical tests of anterograde memory often fail to corroborate these complaints as TEA patients commonly perform within the normal range after the standard 10-30-min delay period. Modified laboratory tests that include a 1-3 week delay period frequently reveal clear evidence of 'accelerated long-term forgetting' (ALF). However, they are not used routinely and lack ecological validity. In the present study we examined whether 'real-life' ALF can be captured via a controlled incidental memory test in TEA patients. To this end, the experimenter told 27 TEA patients and 32 controls a well-rehearsed amusing story, apparently as a way of making light conversation before starting a set of research experiments. Without prior warning, the experimenter subsequently probed the participants' memory of this story via tests of free recall and forced choice recognition after 30 min or 1 week. After 30 min retention was comparable in TEA patients and controls. After 1 week TEA patients retained significantly less story material than controls, and significant ALF was revealed in the TEA patients in the recognition test. Our data show that ALF in a 'real-life' situation can occur even when standard memory tests indicate normal memory function. Moreover, our data suggest that incidental memory tests can capture real-life ALF, and that forced-choice recognition tests might be more sensitive than free recall tests for the detection of real-life ALF. PMID- 29329641 TI - Discussion of "Nonatherosclerotic vascular causes of acute abdominal pain". PMID- 29329643 TI - IgA nephropathy and IgA vasculitis with nephritis have a shared feature involving galactose-deficient IgA1-oriented pathogenesis. AB - Galactose-deficient IgA1 has been proposed as an important effector molecule in IgA nephropathy (IgAN). We previously showed that the galactose-deficient IgA1 specific monoclonal antibody KM55 can detect circulating galactose-deficient IgA1 in patients with IgAN, enabling us to study the molecular roles of galactose deficient IgA1. Herein, we further examined the pathophysiological significance of galactose-deficient IgA1 in glomerular deposits of patients with IgAN by immunohistochemistry using KM55. Immunostaining of galactose-deficient IgA1 with KM55 was performed in paraffin-embedded sections of renal biopsy specimens from 48 patients with IgAN and 49 patients with other renal diseases such as lupus nephritis, HCV-related nephropathy, IgA vasculitis with nephritis (IgA-VN), and membranous nephropathy. Glomerular galactose-deficient IgA1 was specifically detected in IgAN and IgA-VN but not in the other renal diseases. Galactose deficient IgA1 was localized predominantly in the mesangial region as IgA deposition. However, galactose-deficient IgA1 was not detected in patients with lupus nephritis accompanied by glomerular IgA deposition. Thus, our study strongly suggests that IgAN and IgA-VN have a shared feature regarding galactose deficient IgA1-oriented pathogenesis. PMID- 29329644 TI - Anticancer carbazole alkaloids and coumarins from Clausena plants: A review. AB - Pharmaceutical research has focused on the discovery and development of anticancer drugs. Clinical application of chemotherapy drugs is limited due to their severe side effects. In this regard, new naturally occurring anticancer drugs have gained increasing attention because of their potential effectiveness and safety. Fruits and vegetables are promising sources of anticancer remedy. Clausena (family Rutaceae) is a genus of flowering plants and includes several kinds of edible fruits and vegetables. Phytochemical and pharmacological studies show that carbazole alkaloids and coumarins from Clausena plants exhibit anticancer activity. This review summarizes research progresses made in the anticancer properties of plants belonging to Clausena; in particular, compounds with direct cytotoxicity, cell cycle arrest, apoptosis induction, and immune potentiation effects are discussed. This review reveals the potential use of plants from Clausena in preventing and treating cancer and provides a basis for development of relevant therapeutic agents. PMID- 29329642 TI - Mesenchymal stem cell-macrophage crosstalk and bone healing. AB - Recent research has brought about a clear understanding that successful fracture healing is based on carefully coordinated cross-talk between inflammatory and bone forming cells. In particular, the key role that macrophages play in the recruitment and regulation of the differentiation of mesenchymal stem cells (MSCs) during bone regeneration has been brought to focus. Indeed, animal studies have comprehensively demonstrated that fractures do not heal without the direct involvement of macrophages. Yet the exact mechanisms by which macrophages contribute to bone regeneration remain to be elucidated. Macrophage-derived paracrine signaling molecules such as Oncostatin M, Prostaglandin E2 (PGE2), and Bone Morphogenetic Protein-2 (BMP2) have been shown to play critical roles; however the relative importance of inflammatory (M1) and tissue regenerative (M2) macrophages in guiding MSC differentiation along the osteogenic pathway remains poorly understood. In this review, we summarize the current understanding of the interaction of macrophages and MSCs during bone regeneration, with the emphasis on the role of macrophages in regulating bone formation. The potential implications of aging to this cellular cross-talk are reviewed. Emerging treatment options to improve facture healing by utilizing or targeting MSC macrophage crosstalk are also discussed. PMID- 29329645 TI - Polysaccharides extracted from the roots of Bupleurum chinense DC modulates macrophage functions. AB - The present study aimed to investigate the effects of polysaccharides extracted from Bupleurum chinense DC (BCPs) on macrophage functions. In the in vivo experiment, 1 mL of 5% sodium thioglycollate was injected into the abdomen of the mice on Day 0 and macrophages were harvested on Day 4. The macrophages were cultured in plates and treated with different concentrations of BCPs and stimulus. Effects of BCPs on macrophage functions were assessed by chemotaxis assay, phagocytosis assay and Enzyme-Linked Immunosorbent Assay (ELISA). Our results showed the enhanced chemotaxis, phagocytosis and secretion of nitric oxide (NO) and inflammatory cytokines by macrophages when treated with BCPs. However, when chemotaxis and phagocytosis were up-regulated by complement components or opsonized particles, BCPs inhibited these effects. Also, the NO production induced by lipopolysaccharides (LPS) was suppressed by BCPs mildly. Moreover, BCPs had an inhibitory effect on the [Ca2+]i elevation of macrophages. These results suggested that BCPs exerted modulatory effects on macrophage functions, which may contribute to developing novel approaches to treating inflammatory diseases. PMID- 29329646 TI - Effects of Gardenia jasminoides extracts on cognition and innate immune response in an adult Drosophila model of Alzheimer's disease. AB - Herbal extracts have been extensively used worldwide for their application on memory improvement, especially among aged and memory-deficit populations. In the present study, the memory loss induced by human Abeta protein over-expression in fruitfly Alzheimer's disease (AD) model was rescued by multiple extracts from Gardenia jasminoides. Three extracts that rich with gardenia yellow, geniposide, and gardenoside components showed distinct rescue effect on memory loss. Further investigation on adding gardenoside into a formula of Ganoderma lucidum, Panax notoginseng and Panax ginseng (GPP) also support its therapeutic effects on memory improvement. Interestingly, the application of GPP and gardenoside did not alter the accumulation of Abeta proteins but suppressed the expression of immune related genes in the brain. These results revealed the importance and relevancy of anti-inflammation process and the underlying mechanisms on rescuing memory deficits, suggesting the potential therapeutic use of the improved GPP formulation in improving cognition in defined population in the future. PMID- 29329647 TI - Atractylodes lancea rhizome water extract reduces triptolide-induced toxicity and enhances anti-inflammatory effects. AB - The present study was designed to explore the influence of water extracts of Atractylodes lancea rhizomes on the toxicity and anti-inflammatory effects of triptolide (TP). A water extract was prepared from A. lancea rhizomes and co administered with TP in C57BL/6 mice. The toxicity was assayed by determining serum biochemical parameters and visceral indexes and by liver histopathological analysis. The hepatic CYP3A expression levels were detected using Western blotting and RT-PCR methods. The data showed that the water extract of A. lancea rhizomes reduced triptolide-induced toxicity, probably by inducing the hepatic expression of CYP3A. The anti-inflammatory effects of TP were evaluated in mice using a xylene-induced ear edema test. By comparing ear edema inhibition rates, we found that the water extract could also increase the anti-inflammatory effects of TP. In conclusion, our results suggested that the water extract of A. lancea rhizomes, used in combination with TP, has a potential in reducing TP-induced toxicity and enhancing its anti-inflammatory effects. PMID- 29329648 TI - Preparation and physicochemical characterization of T-OA PLGA microspheres. AB - As the carrier of water-insoluble drugs, microspheres can play a role in increasing solubility and delaying releasing essence. The objective of this study was to improve the solubility and to delay the release of a newly discovered antitumor compound 3beta-hydroxyolea-12-en-28-oic acid-3, 5, 6-trimethylpyrazin-2 methyl ester (T-OA). Early-stage preparation discovery concept (EPDC) was employed in the present study. The preparation, physicochemical characterization, and drug release properties of PLGA microspheres were evaluated. T-OA-loaded PLGA microspheres were prepared by an oil-in-water (O/W) emulsification solvent evaporation method. Characterization and release behaviors of the T-OA PLGA microspheres were evaluated by X-ray diffract (XRD), differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and high performance liquid chromatography (HPLC). The results demonstrated that T-OA-loaded PLGA microspheres could be successfully obtained through solvent evaporation method with appropriate morphologic characteristics and high encapsulation efficiency. The XRD analysis showed that T OA would be either molecularly dispersed in the polymer or distributed in an amorphous form. The DSC and FTIR analysis proved that there were interactions between T-OA and PLGA polymer. SEM observations displayed the morphology of the microspheres was homogeneous and the majority of the spheres ranged between 50 and 150 MUm. The drug release behavior of the microspheres in the phosphate buffered saline medium exhibited a sustained release and the duration of the release lasted for more than 23 days, which was fit with zero-order release pattern with r2 = 0.9947. In conclusion, TOA-loaded PLGA microspheres might hold great promise for using as a drug-delivery system in biomedical applications. PMID- 29329649 TI - HPPR encodes the hydroxyphenylpyruvate reductase required for the biosynthesis of hydrophilic phenolic acids in Salvia miltiorrhiza. AB - Salvia miltiorrhiza is a medicinal plant widely used in the treatment of cardiovascular and cerebrovascular diseases. Hydrophilic phenolic acids, including rosmarinic acid (RA) and lithospermic acid B (LAB), are its primary medicinal ingredients. However, the biosynthetic pathway of RA and LAB in S. miltiorrhiza is still poorly understood. In the present study, we accomplished the isolation and characterization of a novel S. miltiorrhiza Hydroxyphenylpyruvate reductase (HPPR) gene, SmHPPR, which plays an important role in the biosynthesis of RA. SmHPPR contained a putative catalytic domain and a NAD(P)H-binding motif. The recombinant SmHPPR enzyme exhibited high HPPR activity, converting 4-hydroxyphenylpyruvic acid (pHPP) to 4-hydroxyphenyllactic acid (pHPL), and exhibited the highest affinity for substrate 4 hydroxyphenylpyruvate. SmHPPR expression could be induced by various treatments, including SA, GA3, MeJA and Ag+, and the changes in SmHPPR activity were correlated well with hydrophilic phenolic acid accumulation. SmHPPR was localized in cytoplasm, most likely close to the cytosolic NADPH-dependent hydroxypyruvate reductase active in photorespiration. In addition, the transgenic S. miltiorrhiza hairy roots overexpressing SmHPPR exhibited up to 10-fold increases in the products of hydrophilic phenolic acid pathway. In conclusion, our findings provide a new insight into the synthesis of active pharmaceutical compounds at molecular level. PMID- 29329650 TI - Synthesis and anti-hepatocellular carcinoma activity of novel O2-vinyl diazeniumdiolate-based nitric oxide-releasing derivatives of oleanolic acid. AB - Considering that high levels of nitric oxide (NO) exert anti-cancer effect and the derivatives of oleanolic acid (OA) have shown potent anti-cancer activity, new O2-vinyl diazeniumdiolate-based NO releasing derivatives (5a-l, 11a-l) of OA were designed, synthesized, and biologically evaluated in the present study. These derivatives could release different amounts of NO in liver cells. Among them, 5d, 5i, 5j, 11g, 11h, and 11j released more NO in SMMC-7721 cells and displayed stronger proliferative inhibition against SMMC-7721 and HepG2 cells than OA and other tested compounds. The most active compound 5j showed almost 20 fold better solubility than OA in aqueous solution, released larger amounts of NO in liver cancer cells than that in normal ones, and exhibited potent anti hepatocellular carcinoma activity but little effect on the normal liver cells. The inhibitory activity against the cancer cells was significantly diminished upon addition of an NO scavenger, suggesting that NO may contribute, at least in part, to the activity of 5j. PMID- 29329651 TI - Lignans and diterpenes isolated from Tirpitzia ovoidea and their biological activities. AB - A new lignan, tirpitzin A (17) together with 20 known compounds (1-16, and 18-21) were isolated from the ethyl acetate soluble fraction of ethanol extract of the aerial parts of Tirpitzia ovoidea. The structure of new compound was elucidated by means of spectroscopic analysis. Of the known compounds, 7-21 were isolated from Linaceae family for the first time. The pharmacological activity of the crude extracts was tested using a mouse inflammation model induced by dimethyl benzene. The results demonstrated that the ethyl acetate soluble fraction had anti-inflammatory activity. Moreover, the cytotoxic and anti-inflammatory activities of some compounds were studied. The new compound 17 showed moderate cytotoxic effect against BxPC-3 cell line (IC50 = 19.51MUmol.L-1) and Compound 10 showed significant cytotoxicity against HepG2, HL-60, U87 and BxPC-3 cell lines with IC50 values in the range 4.2-8.3MUmol.L-1. Additionally, Compounds 2, 10, 11, and 13 exhibited potent inhibitory effects on LPS-induced nitric oxide production in RAW 264.7 macrophages at the concentration of 50MUmol.L-1. PMID- 29329652 TI - Three new anthraquinone derivatives isolated from Symplocos racemosa and their antibiofilm activity. AB - Three new alkyl substituted anthraquinone derivatives, trivially named as symploquinones A-C (Compounds 1-3) were isolated from Symplocos racemosa. The structures of these compounds were determined on the basis of extensive spectroscopic analyses (UV, IR, Mass, 1H- and 13C-NMR, and two-dimensional (2D) NMR techniques). The resulting data were also compared with the reported literature. These compounds were then subjected to antibacterial or antibiofilm testing. Compounds 1 and 3 exhibited good antibacterial activity in the concentration range of 160-83 MUg.mL-1 against Streptococcus mutans, methicillin resistant Staphylococcus aureus and Proteus mirabilis. Both compounds were further screened for anti-biofilm activity, which revealed promising activities at sub-MIC concentrations. None of the compounds were found to be active against Klebsiella pneumoniae. PMID- 29329653 TI - Cycloartane triterpenoid and its glucoside isolated from Cassia occidentalis. AB - In the present study, one new cycloartane triterpenoid, named cycloccidentalic acid C (1) and its glucoside, cycloccidentaliside VI (2) were isolated from the whole plant of Cassia occidentalis. Their structures were elucidated by a combinational analyses of 1D and 2D NMR data and HRMS. Compound 2 showed modest anti-HIV-1 activity with EC50 value of 1.44 MUmol.L-1 and TI (Therapeutic Index) value of 15.59. PMID- 29329654 TI - UHPLC-LTQ-Orbitrap-based metabolomics coupled with metabolomics pathway analysis method for exploring the protection mechanism of Kudiezi injection in a rat anti ischemic cerebral reperfusion damage model. AB - Kudiezi injection has been used extensively in the treatment of cerebrovascular and cardiovascular diseases. However, its therapeutic effects and underlying mechanism of action are not fully understood. The aim of the present study was to clarify the protective mechanisms of Kudiezi injection on cerebral ischemic injury, using metabolomics methods. Middle cerebral artery occlusion (MCAO) was introduced in rats to build the cerebral ischemic damage. UHPLC-LTQ-Orbitrap based analytical method was established for analysis of the metabolites. The raw mass data of all samples were normalized with Sieve 2.2 software and then introduced to orthogonal partial least squares discriminant analysis (OPLS-DA) model. Finally, 23 metabolites in plasma (15 were tentatively identified) were chosen as potential biomarkers, according to accurate mass measurements (< 5 ppm), MS/MS fragmentation patterns, and diagnostic product ions. Furthermore, on the basis of metabolic pathway analysis via metabolomics pathway analysis (MetPA), we first discovered that the protection mechanism in anti-ischemic cerebral reperfusion damage of Kudiezi injection was possibly related to the biosynthesis of phenylalanine, tyrosine, and tryptophan. The present study provided a useful approach for exploring the mechanism of ischemic stroke and evaluating the efficacy of Kudiezi injection or other traditional medicines. PMID- 29329655 TI - [Erratum to "Cervical lift: An update" [Annales de chirurgie plastique esthetique 2017;62:461-73. DOI: 10.1016/j.anplas.2017.08.002]]. PMID- 29329656 TI - Techno-economic performance indicators of municipal solid waste collection strategies. AB - Several indicators for the evaluation of the MSW collection systems have been proposed in the literature. These evaluation tools consider only some of the aspects that influence the operational efficiency of the collection service. The aim of this paper is to suggest a set of (easy to calculate) indicators that overcomes this limitation, taking into account both the characteristics of collected waste and the operational - economic performance. The main components of the collection system (labour, vehicles and containers) are separately considered so that it is possible to quantify and compare their role within the whole process. As an example of application, the proposed approach was used for comparing the MSW collection strategies adopted in four towns in Northern Italy. Results are discussed and a comparison with alternative assessment methods available in the scientific literature is reported. PMID- 29329657 TI - The development and trial of an unmanned aerial system for the measurement of methane flux from landfill and greenhouse gas emission hotspots. AB - This paper describes the development of a new sampling and measurement method to infer methane flux using proxy measurements of CO2 concentration and wind data recorded by Unmanned Aerial Systems (UAS). The flux method described and trialed here is appropriate to the spatial scale of landfill sites and analogous greenhouse gas emission hotspots, making it an important new method for low-cost and rapid case study quantification of fluxes from currently uncertain (but highly important) greenhouse gas sources. We present a case study using these UAS based measurements to derive instantaneous methane fluxes from a test landfill site in the north of England using a mass balance model tailored for UAS sampling and co-emitted CO2 concentration as a methane-emission proxy. Methane flux (and flux uncertainty) during two trials on 27 November 2014 and 5 March 2015, were found to be 0.140 kg s-1 (+/-61% at 1sigma), and 0.050 kg s-1 (+/-54% at 1sigma), respectively. Uncertainty contributing to the flux was dominated by ambient variability in the background (inflow) concentration (>40%) and wind speed (>10%); with instrumental error contributing only ~1-2%. The approach described represents an important advance concerning the challenging problem of greenhouse gas hotspot flux calculation, and offers transferability to a wide range of analogous environments. This new measurement solution could add to a toolkit of approaches to better validate source-specific greenhouse emissions inventories - an important new requirement of the UNFCCC COP21 (Paris) climate change agreement. PMID- 29329659 TI - Discovery of Mcl-1 inhibitors based on a thiazolidine-2,4-dione scaffold. AB - Inspired by a rhodanine-based dual inhibitor of Bcl-xL and Mcl-1, a focused library of analogues was prepared wherein the rhodanine core was replaced with a less promiscuous thiazolidine-2,4-dione scaffold. Compounds were initially evaluated for their abilities to inhibit Mcl-1. The most potent compound 12b inhibited Mcl-1 with a Ki of 155 nM. Further investigation revealed comparable inhibition of Bcl-xL (Ki = 90 nM), indicating that the dual inhibitory profile of the initial rhodanine lead had been retained upon switching the heterocycle core. PMID- 29329658 TI - Novel compounds with potent CDK9 inhibitory activity for the treatment of myeloma. AB - Cyclin-dependent kinases (CDKs) and Polo-like kinases (PLKs) play key role in the regulation of the cell cycle. The aim of our study was originally the further development of our recently discovered polo-like kinase 1 (PLK1) inhibitors. A series of new 2,4-disubstituted pyrimidine derivatives were synthesized around the original hit, but their PLK1 inhibitory activity was very poor. However the novel compounds showed nanomolar CDK9 inhibitory activity and very good antiproliferative effect on multiple myeloma cell lines (RPMI-8226). PMID- 29329660 TI - Cochlea CT radiomics predicts chemoradiotherapy induced sensorineural hearing loss in head and neck cancer patients: A machine learning and multi-variable modelling study. AB - OBJECTIVES: Immediately or after head-and-neck (H&N) cancer chemoradiotherapy (CRT), patients may undergone significant sensorineural hearing loss (SNHL) which could affect their quality of life. Radiomic feature analysis is proposed to predict SNHL induced by CRT. MATERIAL AND METHODS: 490 image features of 94 cochlea from 47 patients treated with three dimensional conformal RT (3DCRT) for different H&N cancers were extracted from CT images. Different machine learning (ML) algorithms and also least absolute shrinkage and selection operator (LASSO) penalized logistic regression were implemented on radiomic features for feature selection, classification and prediction. Also, LASSO penalized logistic model was used for outcome modelling. RESULTS: The predictive power of ten ML methods was more than 70% (in accuracy, precision and area under the curve of receiver operating characteristic curve (AUC)). According to the LASSO penalized logistic modelling, 10 of the 490 radiomic features selected as the associated features with SNHL status. All of the 10 features were statistically associated with SNHL (all of adjusted P-values < .001). CONCLUSION: CT radiomic analysis proposed in this study, could help in the prediction of hearing loss induced by chemoradiation. Our study also, demonstrates that combination of radiomic features with clinical and dosimetric variables can model radiotherapy outcome such as SNHL. PMID- 29329661 TI - The Meshed Autologous Vein. PMID- 29329662 TI - A Summation Analysis of Compliance and Complications of Compression Hosiery for Patients with Chronic Venous Disease or Post-thrombotic Syndrome. AB - OBJECTIVES: Compression stockings are commonly prescribed for patients with a range of venous disorders, but are difficult to don and uncomfortable to wear. This study aimed to investigate compliance and complications of compression stockings in patients with chronic venous disease (CVD) and post-thrombotic syndrome (PTS). METHODS: A literature search of the following databases was carried out: MEDLINE (via PubMed), EMBASE (via OvidSP, 1974 to present), and CINAHL (via EBSCOhost). Studies evaluating the use of compression stockings in patients with CVD (CEAP C2-C5) or for the prevention or treatment of PTS were included. After scrutinising full text articles, compliance with compression and associated complications were assessed. Compliance rates were compared based on study type and degree of compression. Good compliance was defined as patients wearing compression stockings for >50% of the time. RESULTS: From an initial search result of 4303 articles, 58 clinical studies (37 randomised trials and 21 prospective studies) were selected. A total of 10,245 limbs were included, with compression ranging from 15 to 40 mmHg (not stated in 12 studies) and a median follow-up of 12 months (range 1-60 months). In 19 cohorts, compliance was not assessed and in a further nine, compliance was poorly specified. Overall, good compliance with compression was reported for 5371 out of 8104 (66.2%) patients. The mean compliance, weighted by study size, appeared to be greater for compression <=25 mmHg (77%) versus > 25 mmHg (65%) and greater in the randomised studies (74%) than in prospective observational studies (64%). Complications of stockings were not mentioned in 43 out of 62 cohorts reviewed. Where complications were considered, skin irritation was a common event. CONCLUSIONS: In published trials, good compliance with compression is reported in around two thirds of patients, with inferior compliance in those given higher degrees of compression. Further studies are required to identify predictors of non compliance, to help inform the clinical management of these patients. Complications of compression are not documented in many studies and should be given more consideration in the future. PMID- 29329663 TI - Reintroducing Pazopanib Reverses the Primary Resistance of Nivolumab in a Patient With Metastatic Clear-cell Renal Cell Carcinoma. PMID- 29329664 TI - The impact of mental health disorders on 30-day readmission after bariatric surgery. AB - BACKGROUND: Mental health disorders are common among bariatric surgery patients. Mental health disorders, particularly depression, have been associated with poorer surgical outcomes, indicating the bariatric surgery patient population warrants special clinical attention. OBJECTIVE: Our study sought to examine the effect of diagnosed mental health disorders on 30-day readmission for those undergoing bariatric surgery in hospitals across Pennsylvania from 2011 to 2014. METHODS: We used Pennsylvania Healthcare Cost Containment Council data to perform this analysis. Inclusion criteria encompassed patients aged>18 years who underwent bariatric surgery at any hospital or freestanding surgical facility in Pennsylvania between 2011 and 2014. Mental health disorders were identified using predetermined International Classification of Disease, Ninth Revision codes. Logistic regression was used to model the risk of 30-day readmission and estimate the effect of mental health disorders on 30-day readmission. RESULTS: Of the 19,259 patients who underwent bariatric surgery, 40.3% had a diagnosed mental health disorder; 6.51% of all patients were readmitted within 30 days. Patients with a diagnosed mental health disorder had 34% greater odds of readmission (odds ratio = 1.34, 95% confidence interval: 1.19-1.51) relative to patients with no diagnosed mental health disorder. Patients with major depressive disorder/bipolar disorder had 46% greater odds of being readmitted compared with patients with no major depressive disorder/bipolar disorder diagnosis. CONCLUSION: Study findings imply the need for risk assessment of patients before postoperative discharge. Given that patients with mental health diagnoses are at increased risk of 30-day readmission after bariatric surgery, they may benefit from additional discharge interventions designed to attenuate potential readmissions. PMID- 29329666 TI - Advances in self-healing materials based on vascular networks with mechanical self-repair characteristics. AB - Here, we review the state-of-the-art in the field of engineered self-healing materials. These materials mimic the functionalities of various natural materials found in the human body (e.g., the healing of skin and bones by the vascular system). The fabrication methods used to produce these "vascular-system-like" engineered self-healing materials, such as electrospinning (including co electrospinning and emulsion spinning) and solution blowing (including coaxial solution blowing and emulsion blowing) are discussed in detail. Further, a few other approaches involving the use of hollow fibers are also described. In addition, various currently used healing materials/agents, such as dicyclopentadiene and Grubbs' catalyst, poly(dimethyl siloxane), and bisphenol-A based epoxy, are described. We also review the characterization methods employed to verify the physical and chemical aspects of self-healing, that is, the methods used to confirm that the healing agent has been released and that it has resulted in healing, as well as the morphological changes induced in the damaged material by the healing agent. These characterization methods include different visualization and spectroscopy techniques and thermal analysis methods. Special attention is paid to the characterization of the mechanical consequences of self healing. The effects of self-healing on the mechanical properties such as stiffness and adhesion of the damaged material are evaluated using the tensile test, double cantilever beam test, plane strip test, bending test, and adhesion test (e.g., blister test). Finally, the future direction of the development of these systems is discussed. PMID- 29329665 TI - Bioactivation of 1-chloro-2-hydroxy-3-butene, an in vitro metabolite of 1,3 butadiene, by rat liver microsomes. AB - 1-Chloro-2-hydroxy-3-butene (CHB) is an in vitro metabolite of 1,3-butadiene, a rodent/human carcinogen. To search for an approach detecting CHB in vivo, it is vital to obtain a full understanding of CHB metabolism. Previously, we demonstrated that CHB was bioactivated to 1-chloro-3-buten-2-one (CBO) by alcohol dehydrogenase. However, CHB metabolism by cytochrome P450s has not been reported. Thus, in the present study, CHB metabolism by rat liver microsomes was investigated. The results showed that CHB was converted to 1-chloro-3,4-epoxy-2 butanol (CEB) and CBO. 4-Methylpyrazole, a cytochrome P450 2E1-specific inhibitor, inhibited the formation of both CEB and CBO, while 1-benzylimidazole, a generic cytochrome P450 inhibitor, completely abolished the formation of CEB and CBO, suggesting that CHB metabolism was mediated by cytochrome P450s. Because the molecules have two chiral centers, CEB was detected as two stereoisomers, which were designated D-CEB and M-CEB, and were characterized as (2S,3R)-/(2R,3S) CEB and (2R,3R)-/(2S,3S)-CEB, respectively. The amounts of M-CEB were more than those of D-CEB by 50-80%. The amounts of CEB and CBO increased linearly over time from 10 (or 20 min for CBO) to 50 min. CHB metabolism followed Michaelis-Menten kinetics; the Km and Vmax values were determined to be 6.4 +/- 0.7 mM and 0.10 +/ 0.01 nmol/min/mg protein for D-CEB, 4.2 +/- 0.5 mM and 0.16 +/- 0.01 nmol/min/mg protein for M-CEB, and 4.0 +/- 0.5 mM and 4.6 +/- 0.5 nmol/min/mg protein for CBO, respectively. Thus, CBO was the dominant product of CHB metabolism. Moreover, CEB was genotoxic at >= 50 MUM as evaluated by the comet assay. Collectively, the data showed that CHB could be bioactivated to CEB and CBO by cytochrome P450s with CBO being the predominant product. Thus, the formation of CEB and CBO can be used as evidence of CHB production. The products may also play a role in toxicity of CHB. PMID- 29329667 TI - Gel-forming mucin interactome drives mucus viscoelasticity. AB - Mucus is a hydrogel that constitutes the first innate defense in all mammals. The main organic component of mucus, gel-forming mucins, forms a complex network through both reversible and irreversible interactions that drive mucus gel formation. Significant advances in the understanding of irreversible gel-forming mucins assembly have been made using recombinant protein approaches. However, little is known about the reversible interactions that may finely modulate mucus viscoelasticity, which can be characterized using rheology. This approach can be used to investigate both the nature of gel-forming mucins interactions and factors that influence hydrogel formation. This knowledge is directly relevant to the development of new drugs to modulate mucus viscoelasticity and to restore normal mucus functions in diseases such as in cystic fibrosis. The aim of the present review is to summarize the current knowledge about the relationship between the mucus protein matrix and its functions, with emphasis on mucus viscoelasticity. PMID- 29329669 TI - Prevalence and Predictors of Symptom Resolution and Functional Restoration in the Index Knee After Knee Arthroplasty: A Longitudinal Study. AB - OBJECTIVES: To determine the prevalence of a 1- to 2-year postsurgical pain-free state and pain plus symptom-free state as well as functional restoration after knee arthroplasty (KA) and to identify predictors of these outcomes. DESIGN: Cohort study. SETTING: Communities of 4 sites. PARTICIPANTS: Consecutive participants (N=383) who underwent KA on at least 1 knee during the first 8 years of the study (mean age, 67.95+/-8.5y; 61.4% women; n=235). INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: A composite pain score included the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain scale and 2 generic pain rating scales. Composite pain plus other symptoms scores included 3 pain scales, a stiffness scale, and, in addition, the Knee injury and Osteoarthritis Outcome Score Symptoms scale. The WOMAC Function scale was used to quantify functional status. Prevalence estimates and predictors of a pain-free state, symptom-free state, and a fully functioning state were determined. RESULTS: A sample of 383 participants with KA was studied, and of these, 34.1% (95% confidence interval [CI], 29.3%-39.2%; n=131) had a composite score of 0 for pain. A total of 14.1% (95% CI, 10.8%-18.1%; n=54) had a composite score of 0, indicating a symptom-free state, whereas 29.0% (95% CI, 24.4%-34.0%; n=111) achieved a score of 0 on the WOMAC Function scale. CONCLUSIONS: The prevalence of complete pain relief was 34%, the prevalence of complete pain and symptom relief was 14%, and the prevalence of complete functional restoration was 29% after KA. Participants who are older and with lower (better) WOMAC Pain scores were more likely to be pain-free after surgery. These data collected from a community-based sample have the potential to inform clinicians screening patients for KA consultation in a shared decision-making discussion to better align patient expectations with the most likely outcome. PMID- 29329670 TI - Motor Skill Interventions in Children With Developmental Coordination Disorder: A Systematic Review and Meta-Analysis. AB - OBJECTIVES: To determine the characteristics and effectiveness of motor skill interventions in children with developmental coordination disorder (DCD) and to identify potential moderators of training effects using meta-analysis. DATA SOURCES: A search was conducted in 6 databases (CINAHL Plus, Cochrane Library, Embase, ERIC, PsycINFO, and PubMed) for articles published between 1995 and August 2017 using search items which were grouped into 3 components (motor skill interventions, DCD, and age group of interest). STUDY SELECTION: Studies were included if they recruited children 3 to 17 years of age with DCD, reported performance of motor-related skills as outcomes, were published in peer-reviewed journals, and were written in English. Qualitative synthesis was conducted for all included studies. Quantitative synthesis (meta-analysis) was only conducted for studies using a (quasi) randomized controlled trial design. DATA EXTRACTION: Methodology, participant characteristics, intervention components, outcomes, and statistically significant training effects of each included study were extracted. DATA SYNTHESIS: Sixty-six studies met the inclusion criteria with 18 of the studies eligible for meta-analysis. Motor performance and cognitive, emotional, and other psychological factors were the most common outcomes. Other 3 outcome categories included perceptions and/or satisfaction regarding the children's improvement from significant others, physical fitness, and physical activity and participation. Immediate and moderate training effects were found for motor performance (Hedges g=.63; 95% confidence interval [CI], .31-.94; P<.001) and cognitive, emotional, and other psychological factors (Hedges g=0.65; 95% CI, 0.25-1.04; P=.001). Additionally, dose (minutes in total) and frequency of the intervention were significant moderators of training effect on motor performance. CONCLUSIONS: Motor skill interventions are effective in improving motor competence and performance on cognitive, emotional, and other psychological aspects in children with DCD in the short term. These effects are more robust in interventions using a large training dose and a practicing schedule of high frequency. PMID- 29329668 TI - Helicobacter pylori induces direct activation of the lymphotoxin beta receptor and non-canonical nuclear factor-kappa B signaling. AB - The pathogen Helicobacter pylori, which infects half of the world's population, is a major risk factor for the development of gastric diseases including chronic gastritis and gastric cancer. Among H. pylori's virulence factors is the cytotoxin-associated gene pathogenicity island (cagPAI), which encodes for a type IV secretion system (T4SS). The T4SS induces fast canonical nuclear factor-kappa B (NF-kappaB) signaling, a major factor increasing inflammation, supressing apoptotic cell death and thereby promoting the development of neoplasia. However, H. pylori's capability to mediate fast non-canonical NF-kappaB signaling is unresolved, despite a contribution of non-canonical NF-kappaB signaling to gastric cancer has been suggested. We analyzed signaling elements within non canonical NF-kappaB in response to H. pylori in epithelial cell lines by immunoprecipitation, immunoblot, electrophoretic mobility shift assay and RNA interference knockdown. In addition, tissue samples of H. pylori-infected patients were investigated by immunohistochemistry. Here, we provide evidence for a T4SS-dependent direct activation of non-canonical NF-kappaB signaling. We identified the lymphotoxin beta receptor (LTbetaR) to elicit the fast release of NF-kappaB inducing kinase (NIK) from the receptor complex leading to non canonical NF-kappaB signaling. Further, NIK expression was increased in human biopsies of H. pylori-associated gastritis. Thus, NIK could represent a novel target to reduce Helicobacter pylori-induced gastric inflammation and pathology. PMID- 29329671 TI - Localizing two acoustic emission sources simultaneously using beamforming and singular value decomposition. AB - Aiming at the issue that the weak AE source is easy to be lost when localizing simultaneous two acoustic emission (AE) sources by the beamforming method (BFM), a novel method is developed based on beamforming and singular value decomposition (SVD). Firstly, the AE data and propagation characteristics of the two simultaneous AE sources with different frequency, different magnitude and different positions are obtained, and localization results by directly using the beamforming are investigated. Then SVD method is introduced to pre-process the signals from AE sources and solve the problem of missing location. Finally, the method is verified on a steel plate by AE experiment. The results show that the localization method based on SVD-beamforming method (SVD-BFM) can effectively locate the simultaneous double AE sources. PMID- 29329672 TI - There are probably no differences in arrest of white-spot lesions and plaque composition between remineralizing and nonfluoridated toothpastes. PMID- 29329673 TI - Use of naproxen before in-office tooth bleaching may result in a small decrease in tooth sensitivity during and immediately after the procedure. PMID- 29329674 TI - Long-term esthetic outcomes of patients with cleft lip and palate have improved over time. PMID- 29329675 TI - Root canal retreatment with Thermafil as an obturator seems to have acceptable survival after 5 years. PMID- 29329676 TI - A mixed linear model controlling for case underascertainment across multiple cancer registries estimated time trends in survival. AB - OBJECTIVES: Large temporal and geographical variation in survival rates estimated from epidemiological cancer registries coupled with heterogeneity in death certificate only (DCO) notifications makes it difficult to interpret trends in survival. The aim of our study is to introduce a method for estimating such trends while accounting for heterogeneity in DCO notifications in a cancer site specific manner. STUDY DESIGN AND SETTING: We used the data of 4.0 million cancer cases notified in 14 German epidemiological cancer registries. Annual 5-year relative survival rates from 2002 through 2013 were estimated, and proportions of DCO notifications were recorded. "DCO-excluded" survival rates were regressed on DCO proportions and calendar years using a mixed linear model with cancer registry as a random effect. Based on this model, trends in survival rates were estimated for Germany at 0% DCO. RESULTS: For most cancer sites and age groups, we estimated significant positive trends in survival. Age-standardized survival for all cancers combined increased by 7.1% units for women and 10.8% units for men. CONCLUSION: The described method could be used to estimate trends in cancer survival based on the data from epidemiological cancer registries with differing DCO proportions and with changing DCO proportions over time. PMID- 29329677 TI - Living systematic reviews, not only for clinical (placebo) research. PMID- 29329678 TI - Apelin-13 ameliorates cognitive impairments in 6-hydroxydopamine-induced substantia nigra lesion in rats. AB - Although Parkinson's disease (PD) is well known with its motor deficits, the patients often suffer from cognitive dysfunction. Apelin, as the endogenous ligand of the APJ receptor, is found in several brain regions such as substantia nigra and mesolimbic pathway. However, the role of apelin in cognition and cognitive disorders has not been fully clarified. In this study the effects of apelin-13 were investigated on cognitive disorders in rat Parkinsonism experimental model. 6-hydroxydopamine (6-OHDA) was administrated into the substantia nigra. Apelin-13 (1, 2 and 3MUg/rat) was administered into the substantia nigra one week after the 6-OHDA injection. Morris water maze (MWM), object location and novel object recognition tests were performed one month after the apelin injection. 6-OHDA-treated animals showed a significant impairment in cognitive functions which was revealed by the increased in the escape latency and traveled distance in MWM test and decreased in the exploration index in novel object recognition and object location tasks. Apelin-13 (3MUg/rat) significantly attenuates the mentioned cognitive impairments in 6-OHDA-treated animals. In conclusion, the data support the pro-cognitive property of apelin-13 in 6-OHDA induced cognitive deficit and provided a new pharmacological aspect of the neuropeptide apelin. PMID- 29329679 TI - Standardization of a fast and effective method for the generation and detection of platelet-derived microparticles by a flow cytometer. AB - The Flow Cytometry is the principal method used to measure platelet-derived microparticles (PDMPs), by fluorescent properties analysis. PDMPs (0.1-1.0 MUm) are abundant in circulation, accounting for approximately 90% of the microparticles and are associated with Cardiovascular Disease, the leading cause of death in the world. PMID- 29329680 TI - Correlation of severity of chronic obstructive pulmonary disease with potential biomarkers. AB - BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a non-specific inflammation, which involves the airways, lung parenchyma and pulmonary vessels. The inflammation causes the activation of inflammatory cells and the release of various inflammatory mediators such as interleukin-1 beta, interleukin-6 and tumor necrosis factor alpha (TNF-a). The present study was designed to assess the serum cytokines [Interleukin-1beta (IL-1beta), Interleukin-6 (IL-6), Tumor necrosis factor-alpha (TNF-alpha)] levels in chronic obstructive pulmonary disease (COPD) patients and they were correlated with severity of disease by spirometric measurements. MATERIALS AND METHODS: A total of 384 COPD patients and 50 healthy controls were enrolled in this study. The COPD patients were divided according to gold stages ie: mild, moderate, severe and very severe. 5 ml of venous blood samples were taken from all participants and it was collected in a test tube containing anticoagulant and then centrifuged at 3000 rpm for 10 min. Serum was separated and used to measure the amount of TNF-alpha, il-1beta, and IL 6. Spirometry was performed according to the criteria set by the Gold 2012 RESULTS: Tnf-alpha (pg/ml), IL-6 (pg/ml), IL-1beta (pg/ml) serum levels in COPD patients and healthy controls subjects were measured. Tnf-alpha and IL-6 serum levels were significantly (<0.001) higher in COPD patients compared to healthy control subjects. Likewise, IL-1 beta levels were also significantly (p-value = 0.022) higher in COPD patients compared to healthy control subjects. The distribution of Tnf-alpha, IL-6, IL-1beta (pg/ml) serum levels in COPD patients in relation to GOLD grading. There was a significant (p < 0.001) difference in the level of TNF-alpha, IL-6 and IL-1beta (pg/ml) among the severity of COPD. The posthoc analysis revealed that the TNF-alpha was significantly (p < 0.05) higher among the than mild, moderate, severe and very severe COPD patients. A similar observation was also found for IL-6. However, IL-6 was significantly (p < 0.05) higher among mild, moderate, severe and very severe COPD patients. There was significant (p = < 0.0001) difference in the level of IL-1beta in the different severity of COPD. The posthoc comparison test showed that IL-1beta levels were significantly (p < 0.05) higher among the mild, moderate, severe and very severe COPD patients. CONCLUSION: The present study signifies that the levels of TNF alpha, IL-1beta, and IL-6 are directly proportional to the post-bronchodilator FEV1 percentage. Results provide population-based evidence that COPD is independently associated with low-grade systemic inflammation, with a different inflammatory pattern than that observed in healthy subjects. Overall, these results identify a novel systemic inflammatory COPD phenotype that may be the target of specific research and treatment. PMID- 29329681 TI - Expanding the genetic profile of Hay-Wells syndrome. PMID- 29329682 TI - Feline coronavirus: Insights into viral pathogenesis based on the spike protein structure and function. AB - Feline coronavirus (FCoV) is an etiological agent that causes a benign enteric illness and the fatal systemic disease feline infectious peritonitis (FIP). The FCoV spike (S) protein is considered the viral regulator for binding and entry to the cell. This protein is also involved in FCoV tropism and virulence, as well as in the switch from enteric disease to FIP. This regulation is carried out by spike's major functions: receptor binding and virus-cell membrane fusion. In this review, we address important aspects in FCoV genetics, replication and pathogenesis, focusing on the role of S. To better understand this, FCoV S protein models were constructed, based on the human coronavirus NL63 (HCoV-NL63) S structure. We describe the specific structural characteristics of the FCoV S, in comparison with other coronavirus spikes. We also revise the biochemical events needed for FCoV S activation and its relation to the structural features of the protein. PMID- 29329683 TI - Respiratory disease in ball pythons (Python regius) experimentally infected with ball python nidovirus. AB - Circumstantial evidence has linked a new group of nidoviruses with respiratory disease in pythons, lizards, and cattle. We conducted experimental infections in ball pythons (Python regius) to test the hypothesis that ball python nidovirus (BPNV) infection results in respiratory disease. Three ball pythons were inoculated orally and intratracheally with cell culture isolated BPNV and two were sham inoculated. Antemortem choanal, oroesophageal, and cloacal swabs and postmortem tissues of infected snakes were positive for viral RNA, protein, and infectious virus by qRT-PCR, immunohistochemistry, western blot and virus isolation. Clinical signs included oral mucosal reddening, abundant mucus secretions, open-mouthed breathing, and anorexia. Histologic lesions included chronic-active mucinous rhinitis, stomatitis, tracheitis, esophagitis and proliferative interstitial pneumonia. Control snakes remained negative and free of clinical signs throughout the experiment. Our findings establish a causal relationship between nidovirus infection and respiratory disease in ball pythons and shed light on disease progression and transmission. PMID- 29329685 TI - Association of provider recommendation and offer and influenza vaccination among adults aged >=18 years - United States. AB - BACKGROUND: Influenza vaccination has been recommended for all persons aged >=6 months since 2010. METHODS: Data from the 2016 National Internet Flu Survey were analyzed to assess provider vaccination recommendations and early influenza vaccination during the 2016-17 season among adults aged >=18 years. Predictive marginals from a multivariable logistic regression model were used to identify factors independently associated with early vaccine uptake by provider vaccination recommendation status. RESULTS: Overall, 24.0% visited a provider who both recommended and offered influenza vaccination, 9.0% visited a provider who only recommended but did not offer, 25.1% visited a provider who neither recommended nor offered, and 41.9% did not visit a doctor from July 1 through date of interview. Adults who reported that a provider both recommended and offered vaccine had significantly higher vaccination coverage (66.6%) compared with those who reported that a provider only recommended but did not offer (48.4%), those who neither received recommendation nor offer (32.0%), and those who did not visit a doctor during the vaccination period (28.8%). Results of multivariable logistic regression indicated that having received a provider recommendation, with or without an offer for vaccination, was significantly associated with higher vaccination coverage after controlling for demographic and access-to-care factors. CONCLUSIONS: Provider recommendation was significantly associated with influenza vaccination. However, overall, 67.0% of adults did not visit a doctor during the vaccination period or did visit a doctor but did not receive a provider recommendation. Evidence-based strategies such as client reminder/recall, standing orders, provider reminders, or health systems interventions in combination should be undertaken to improve provider recommendation and influenza vaccination coverage. Other factors significantly associated with a higher level of influenza vaccination included age >=50 years, being Hispanic, having a college or higher education, having a usual place for medical care, and having public health insurance. PMID- 29329684 TI - Impact of seasonal influenza vaccination in the presence of vaccine interference. AB - BACKGROUND: Annual influenza vaccination is a key to preventing widespread influenza infections. Recent reports of influenza vaccine effectiveness (VE) indicate that vaccination in prior years may reduce VE in the current season, suggesting vaccine interference. The purpose of this study is to evaluate the potential effect of repeat influenza vaccinations in the presence of vaccine interference. METHODS: Using literature-based parameters, an age-structured influenza equation-based transmission model was used to determine the optimal vaccination strategy, while considering the effect of varying levels of interference. RESULTS: The model shows that, even in the presence of vaccine interference, revaccination reduces the influenza attack rate and provides individual benefits. Specifically, annual vaccination is a favored strategy over vaccination in alternate years, as long as the level of residual protection is less than 58% or vaccine interference effect is minimal. Furthermore, the negative impact of vaccine interference may be offset by increased vaccine coverage levels. CONCLUSIONS: Even in the presence of potential vaccine interference, our work provides a population-level perspective on the potential merits of repeated influenza vaccination. This is because repeat vaccination groups had lower attack rates than groups that omitted the second vaccination unless vaccine interference was at very high, perhaps implausible, levels. PMID- 29329686 TI - Highlighting priority areas for bovine viral diarrhea control in Italy: A phylogeographic approach. AB - The prevalence and genetic diversity of bovine viral diarrhea virus (BVDV) in a geographic area are largely influenced by live animal trade and management practices. Despite control and eradication programs currently underway in several European countries, the risk of BVDV spread within and among countries is still present. BVDV-1 is the predominant type circulating in European cattle population. In this study, a phylogeographic analysis was applied to the BVDV-1 highest prevalent subtypes in Italy to reconstruct the origin and spatial temporal distribution and to trace main viral flows between different locations to highlight priority areas for BVDV control. A comprehensive dataset of BVDV-1b (n = 173) and 1e (n = 172) 5' UTR sequences was analysed, including both novel and published sequences from Italy and from European countries bordering and/or with commercial cattle flows with Italy. A common phylogeographic pattern was observed for BVDV-1b and 1e subtypes: interspersion from multiple Italian areas and European countries was widespread until the end of the last century, whereas significant local clusters were observed starting from 2000. These findings support a continuous viral flow among different areas over long time scales with no evidence of significant geographical structure, while local transmission networks are limited to more recent years. Northern Italy has been confirmed as the area of origin of the main clades of both BVDV subtypes at national level, acting both as a crucial area for introduction and a maintenance source for other areas. Piedmont, Central and Southern Italian regions contributed to limited geographical distribution and local BVDV-1b and 1e persistence. On the whole, priority control measures for BVDV-1b and 1e in Italy should be focused on: i) implementation of BVDV systematic control in all Northern Italian regions to break the viral flow from larger to smaller animal populations; and ii) breaking the dynamics of infections in regions with self-maintenance of BVDV by voluntary control programs. PMID- 29329688 TI - Motorizing and Optimizing Ultrasound Strain Elastography for Detection of Intrauterine Growth Restriction Pregnancies. AB - Intrauterine growth restriction is a prevalent disease in pregnancy in which placental insufficiency leads to 5 to 10 times higher mortality and lifelong morbidities. The current detection rate is poor, and recently, ultrasound strain elastography (USEL) was proposed as a new diagnostic technique. Currently, placental USEL uses maternal subcutaneous fat as the reference layer, but this is not ideal as fat tissue stiffness can vary widely between subjects. Current USEL also uses manual palpation, and under different compression depths and rates, viscoelastic tissues such as placenta can yield different stiffness results. In the study described here, we strove to improve placental USEL by (i) using an external polymeric pad of known stiffness as the reference layer and (ii) adopting motorized control of the transducer during USEL to standardize palpation motion. Results indicated that motorized USEL reduced measurement variability by 67% compared with freehand USEL. Satisfactory and statistically significant correlations between USEL measurements and mechanical testing validation results were obtained for our new USEL protocol. Placental tissues were found to be non linear and viscoelastic in nature and, thus, differed in stiffness at different compression rates and depths. Our study also revealed that there was a specific compression depth and rate during USEL that provided better correlation to mechanical testing, and should be considered in clinical placental USEL. PMID- 29329690 TI - Author's Response. PMID- 29329689 TI - Pediatric obesity: Current concepts. AB - This discussion reflects on concepts of obesity in children and adolescents in the early 21st century. It includes reflections on its history, definition, epidemiology, diagnostic perspectives, psychosocial considerations, musculoskeletal complications, endocrine complications and principles of management. In addition to emphasis on diet and exercise, research and clinical applications in the second decade of the 21st century emphasize the increasing use of pharmacotherapy and bariatric surgery for adolescent and adult populations with critical problems of overweight and obesity. We conclude with a discussion of future directions in pediatric obesity management. PMID- 29329691 TI - Communication Disparity Between the Bereaved and Others: What Hurts Them and What Is Unhelpful? A Nationwide Study of the Cancer Bereaved. AB - CONTEXT: The importance of communication between the cancer bereaved and others has been emphasized, but little is known about the more problematic aspects of this communication such as "unhelpful communication." OBJECTIVES: The aim of this study was to establish which types of communication are perceived by the bereaved to be unhelpful. METHODS: We conducted a cross-sectional, anonymous, nationwide survey at 103 certified hospice facilities/palliative care units in Japan. RESULTS: A total of 630 (63%) bereaved responded. Over 60% of the bereaved experiencing such communication considered it to be unhelpful, with the most unhelpful communication being "They emphasized the positive aspects of death." Thirteen items related to communication were separated into two factors ("advice for recovery" and "comments on cancer") by factor analysis. "Comments on cancer" were more unhelpful to them and were more often provided by those around them. With regard to "advice for recovery," losing a spouse was a stronger predictor with a higher odds ratio for communication distress than losing a parent (odds ratio, 5.34; 95% CI, 1.63-17.57). CONCLUSION: A number of the bereaved have experienced unhelpful communication regarding advice on dealing with bereavement and cancer. To prevent putting an unnecessary burden on the bereaved with such unhelpful communication, it is essential to understand problematic aspects. Even when people have no intention of hurting the bereaved, some communication may do so. Communication with the bereaved is also a core clinical skill required by health professionals, and further efforts are required to support the grieving process. PMID- 29329692 TI - Potential psychological & neural mechanisms in binge eating disorder: Implications for treatment. AB - Binge Eating Disorder (BED) is a newly-established eating disorder diagnosis in the 5th edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM 5). Although systematic research on BED is in its infancy and many studies feature small samples, several observations emerge. First, we review diagnostic, developmental, and socio-demographic features of BED. Next, although BED and obesity are linked and frequently co-occur, we review data suggesting that BED is a distinct phenotype. Importantly, we take a mechanism-focused approach and propose four psychological processes with neurobiological bases that may uniquely differentiate BED from obesity: emotion reactivity, food-cue reactivity, food craving, and cognitive control. Further, we propose that interactions between impairments in cognitive control and increased emotional reactivity, food-cue reactivity, and craving may underlie emotion dysregulation and promote binge eating. Consistently, neuroimaging studies point towards neural alterations in the response to rewards and to food specifically, and suggest preliminary links between impaired cognitive-control-related neural activity and binge eating. However, additional systematic work is required in this area. We conclude with a detailed review of treatment approaches to BED; specifically, we suggest that psychological and pharmacological treatments that target core mechanisms - including cognitive control and emotion/craving dysregulation - may be particularly effective. PMID- 29329693 TI - BOLD fMRI signal in stroke patients and its importance for prognosis in the subacute disease period - Preliminary report. AB - : Functional magnetic resonance imaging (fMRI) allows for the assessment of neuronal activity through the blood-level-dependent signal. The purpose of study was to evaluate the pattern of brain activity in fMRI in patients with ischemic stroke and to assess the potential relationship between the activity pattern and the neurological/functional status. METHODS: The fMRI was performed in patients up to 4th day of stroke. All the patients were analyzed according to NIHSS on 1st day and mRankin scale on 14th day of stroke, followed by analyzing of fMRI signal. RESULTS: The study enrolled 13 patients at a mean age of 64.3years. Eight (61.5%) showed cerebellar activation and 2 (15.38%)- insular activation. In those who scored 0-2 on mRankin scale, the most frequently observed activity was located in the regions: the M1, SMA and PMC in the stroke hemisphere and the cerebellum. In those cases, the non-stroke hemisphere was more frequently involved in the areas: the M1 and PMC. There was a tendency for a better prognosis in relation to age <65years and activation of the SMA in the stroke hemisphere. CONCLUSION: There are differences observed in the activation areas of the cerebral cortex both in the stroke and non-stroke hemispheres. More than half of the patients with hemispheric stroke but all with good outcome showed cerebellar activation. There is probable positive correlation between the BOLD signal size, young age, activation of supplementary motor area in stroke hemisphere and good functional status of patients in the subacute period of stroke. PMID- 29329687 TI - Bubble-Induced Color Doppler Feedback Correlates with Histotripsy-Induced Destruction of Structural Components in Liver Tissue. AB - Bubble-induced color Doppler (BCD) is a histotripsy-therapy monitoring technique that uses Doppler ultrasound to track the motion of residual cavitation nuclei that persist after the collapse of the histotripsy bubble cloud. In this study, BCD is used to monitor tissue fractionation during histotripsy tissue therapy, and the BCD signal is correlated with the destruction of structural and non structural components identified histologically to further understand how BCD monitors the extent of treatment. A 500-kHz, 112-element phased histotripsy array is used to generate approximately 6- * 6- * 7-mm lesions within ex vivo bovine liver tissue by scanning more than 219 locations with 30-1000 pulses per location. A 128-element L7-4 imaging probe is used to acquire BCD signals during all treatments. The BCD signal is then quantitatively analyzed using the time-to peak rebound velocity (tprv) metric. Using the Pearson correlation coefficient, the tprv is compared with histologic analytics of lesions generated by various numbers of pulses using a significance level of 0.001. Histologic analytics in this study include viable cell count, reticulin-stained type III collagen area and trichrome-stained type I collagen area. It is found that the tprv metric has a statistically significant correlation with the change in reticulin-stained type III collagen area with a Pearson correlation coefficient of -0.94 (p <0.001), indicating that changes in BCD are more likely because of destruction of the structural components of tissue. PMID- 29329694 TI - Management of Refractory Vasodilatory Shock. AB - Refractory shock is a lethal manifestation of cardiovascular failure defined by an inadequate hemodynamic response to high doses of vasopressor medications. Approximately 7% of critically ill patients will develop refractory shock, with short-term mortality exceeding 50%. Refractory vasodilatory shock develops from uncontrolled vasodilation and vascular hyporesponsiveness to endogenous vasoconstrictors, causing failure of physiologic vasoregulatory mechanisms. Standard approaches to the initial management of shock include fluid resuscitation and initiation of norepinephrine. When these measures are inadequate to restore BP, vasopressin or epinephrine can be added. Few randomized studies exist to guide clinical management and hemodynamic stabilization in patients who do not respond to this standard approach. Adjunctive therapies, such as hydrocortisone, thiamine, and ascorbic acid, may increase BP in severe shock and should be considered when combination vasopressor therapy is needed. Novel vasopressor agents, such as synthetic human angiotensin II, can increase BP and reduce the need for high doses of catecholamine vasopressors in severe or refractory vasodilatory shock. Few effective rescue therapies exist for established refractory shock, which emphasizes the importance of aggressive intervention before refractory shock develops, including the earlier initiation of rational combination vasopressor therapy. The present review discusses the diagnosis and management of refractory shock to offer guidance for management of this important clinical problem and to provide a framework for future research. PMID- 29329695 TI - A patient with pembrolizumab-induced fatal polymyositis. PMID- 29329696 TI - Pharmacokinetics partly explains the relationship between carcinoembryonic antigen level and survival of colorectal cancer patients treated with ramucirumab. PMID- 29329698 TI - Effect of combined exercise training on serum brain-derived neurotrophic factor, suppressors of cytokine signaling 1 and 3 in patients with multiple sclerosis. AB - BACKGROUND: Suppressors of cytokine signaling (SOCS) and brain-derived neurotrophic factor (BDNF) are important immunologic, and neurotrophic factors for MS pathogenesis. The impact of exercise on these factors is yet to be fully elucidated in patients with MS. OBJECTIVE: The primary aim of this study is to investigate the effect of 8-week combined exercise training on serum concentrations of SOCS1, SOCS3, and BDNF. The secondary aim is to determine the effects of combined exercise training on balance, functional exercise capacity, and fatigue in patients with MS. METHODS: Serum SOCS1, SOCS3, and BDNF levels were assessed in 36 MS patients and 18 healthy individuals. In addition, balance, functional exercise capacity, and fatigue were assessed in the patients with MS. The patients were randomly divided into the combined exercise group (MS-EX, n:18) and the control group (MS-C, n:18). MS-EX received an 8-week combined exercise training. RESULTS: The serum SOCS1, SOCS3, and BDNF levels were similar in the MS patients and healthy control (HC). In MS-EX, the serum BDNF level, balance, functional exercise capacity, and fatigue improved after 8weeks (p<0.05), but the serum SOCS1, and SOCS3 levels did not change significantly (p>0.05). In MS-C, the serum SOCS1 level, and fatigue increased significantly after 8weeks (p<0.05), but serum SOCS3, BDNF, balance and functional exercise capacity did not change (p>0.05). CONCLUSIONS: In summary, the combined exercise training improved BDNF, and physical performance in patients with MS. But, future studies are needed to clarify the role of SOCS proteins in MS pathogenesis and the effect of exercise on SOCS. PMID- 29329697 TI - Ageing perceptions and non-adherence to aromatase inhibitors among breast cancer survivors. AB - PURPOSE: Aromatase inhibitors (AIs) are a potentially life-saving treatment for breast cancer survivors, yet poor adherence to treatment is a prevalent problem. A common adverse effect of AI treatment is arthralgia, which is identified by survivors as a major reason for treatment discontinuation. Women who experience arthralgia on AIs often report feeling they have aged rapidly while on the treatment. In the present study, we examined whether arthralgia-associated ageing perceptions predicted non-adherence. PATIENTS AND METHODS: We conducted a prospective cohort study among women with stage I-III breast cancer, who were on an AI and completed the Penn Arthralgia Aging Scale within 2 years of AI initiation. Adherence data were abstracted from medical charts by trained raters. Cox proportional hazard analysis was used to determine the relationship between ageing perceptions and time to non-adherence. All analyses included adjustments for joint pain severity. RESULTS: Among 509 participants, 144 (28.3%) were non adherent. As hypothesised, women with high levels of ageing perceptions were at greater risk of non-adherence than women with low levels of ageing perceptions (adjusted hazard ratio [HR], 1.71; 95% confidence interval [CI], 1.10-2.67; p = .02). High levels of depressive symptoms were also uniquely associated with increased risk of non-adherence (adjusted HR, 1.63; 95% CI, 1.03-2.59; p = .04). CONCLUSION: Perceptions of ageing related to arthralgia and depressive symptoms predicted non-adherence to AIs. These findings suggest that interventions that address negative beliefs about ageing due to AI-related arthralgia and depressive mood can potentially improve rates of adherence to AIs. PMID- 29329699 TI - Soluble CD40 ligand disrupts the blood-brain barrier and exacerbates inflammation in experimental autoimmune encephalomyelitis. AB - Serum soluble CD40 ligand (sCD40L) has been reported to positively correlate with the albumin quotient, a marker of blood-brain barrier (BBB) breakdown, in patients with multiple sclerosis (MS). To clarify the mechanisms of sCD40L in MS pathophysiology, sCD40L was administered to experimental autoimmune encephalomyelitis (EAE) mice and a human brain microvascular endothelial cell (HBMEC)-based BBB model. The high-dose sCD40L group showed a worse EAE score than the low-dose and control groups. BBB permeability was increased by administering sCD40L in a HBMEC-based BBB model. Thus, sCD40L induces more severe inflammation in the central nervous system by disrupting the BBB. PMID- 29329700 TI - [A Listeria breast abscess in a man]. AB - INTRODUCTION: Listeriosis is a food-borne illness leading to bacteriemia or central nervous system infection especially in pregnant women or high-risk patients. It is rarely a localized infection. Breast contamination has rarely been reported in lactating women. We report a breast abscess in man. CASE REPORT: A 80 year old man, hypertensive and arrhythmic, was explored for weakness and dehydration. Type 2 diabetes and chronic lymphocytic leukemia were diagnosed. Clinical examination disclosed a breast abcess related to L monocytogenes infection. Histopathological study also revealed a breast subcutaneous infiltration by chronic lymphocytic leukemia. CONCLUSION: Listeriosis sometimes uncover an unknown immunosuppression, especially in the elderly. Breast is a non sterile tissue containing a stable microbiome partly from digestive origin. It can thereby be contaminated by Listeria. The specific cutaneous infiltrate of chronic lymphocytic leukemia can create the conditions for a local infection. PMID- 29329701 TI - Automatic information extraction from unstructured mammography reports using distributed semantics. AB - To date, the methods developed for automated extraction of information from radiology reports are mainly rule-based or dictionary-based, and, therefore, require substantial manual effort to build these systems. Recent efforts to develop automated systems for entity detection have been undertaken, but little work has been done to automatically extract relations and their associated named entities in narrative radiology reports that have comparable accuracy to rule based methods. Our goal is to extract relations in a unsupervised way from radiology reports without specifying prior domain knowledge. We propose a hybrid approach for information extraction that combines dependency-based parse tree with distributed semantics for generating structured information frames about particular findings/abnormalities from the free-text mammography reports. The proposed IE system obtains a F1-score of 0.94 in terms of completeness of the content in the information frames, which outperforms a state-of-the-art rule based system in this domain by a significant margin. The proposed system can be leveraged in a variety of applications, such as decision support and information retrieval, and may also easily scale to other radiology domains, since there is no need to tune the system with hand-crafted information extraction rules. PMID- 29329702 TI - Ten factors to consider when developing usability scenarios and tasks for health information technology. AB - The quality of usability testing is highly dependent upon the associated usability scenarios. To promote usability testing as part of electronic health record (EHR) certification, the Office of the National Coordinator (ONC) for Health Information Technology requires that vendors test specific capabilities of EHRs with clinical end-users and report their usability testing process - including the test scenarios used - along with the results. The ONC outlines basic expectations for usability testing, but there is little guidance in usability texts or scientific literature on how to develop usability scenarios for healthcare applications. The objective of this article is to outline key factors to consider when developing usability scenarios and tasks to evaluate computer-interface based health information technologies. To achieve this goal, we draw upon a decade of our experience conducting usability tests with a variety of healthcare applications and a wide range of end-users, to include healthcare professionals as well as patients. We discuss 10 key factors that influence scenario development: objectives of usability testing; roles of end-user(s); target performance goals; evaluation time constraints; clinical focus; fidelity; scenario-related bias and confounders; embedded probes; minimize risks to end users; and healthcare related outcome measures. For each factor, we present an illustrative example. This article is intended to aid usability researchers and practitioners in their efforts to advance health information technologies. The article provides broad guidance on usability scenario development and can be applied to a wide range of clinical information systems and applications. PMID- 29329703 TI - Highly-sensitive microRNA detection based on bio-bar-code assay and catalytic hairpin assembly two-stage amplification. AB - Herein, a highly-sensitive microRNA (miRNA) detection strategy was developed by combining bio-bar-code assay (BBA) with catalytic hairpin assembly (CHA). In the proposed system, two nanoprobes of magnetic nanoparticles functionalized with DNA probes (MNPs-DNA) and gold nanoparticles with numerous barcode DNA (AuNPs-DNA) were designed. In the presence of target miRNA, the MNP-DNA and AuNP-DNA hybridized with target miRNA to form a "sandwich" structure. After "sandwich" structures were separated from the solution by the magnetic field and dehybridized by high temperature, the barcode DNA sequences were released by dissolving AuNPs. The released barcode DNA sequences triggered the toehold strand displacement assembly of two hairpin probes, leading to recycle of barcode DNA sequences and producing numerous fluorescent CHA products for miRNA detection. Under the optimal experimental conditions, the proposed two-stage amplification system could sensitively detect target miRNA ranging from 10 pM to 10 aM with a limit of detection (LOD) down to 97.9 zM. It displayed good capability to discriminate single base and three bases mismatch due to the unique sandwich structure. Notably, it presented good feasibility for selective multiplexed detection of various combinations of synthetic miRNA sequences and miRNAs extracted from different cell lysates, which were in agreement with the traditional polymerase chain reaction analysis. The two-stage amplification strategy may be significant implication in the biological detection and clinical diagnosis. PMID- 29329704 TI - A detailed electrochemical impedance spectroscopy study of a bismuth-film glassy carbon electrode for trace metal analysis. AB - A systematic electrochemical impedance spectroscopy (EIS) analysis at different potentials of an in situ-prepared bismuth-film glassy carbon electrode (BiFE) in 0.1 M acetate buffer solution is reported. This electrode is employed in the square-wave anodic stripping voltammetry (SWASV) technique for the determination of trace amounts of the heavy metals Zn, Cd, and Pb. The method was first validated for detection limit, linear range, sensitivity, precision and accuracy to clearly prove the superior action of BiFE compared with the bare glassy carbon electrode (GCE). Next, in order to investigate the characteristics of this sensor, EIS measurements were carried out at slightly more negative potentials than the potentials at which each individual stripping signal is detected, after the deposition step at different deposition potentials. For comparison, EIS measurements were also performed at open circuit potential. The studied trace metal concentration range (5-20 ppb) did not significantly influence the capacitive and resistive behaviour of the BiFE which explains why the performance of this sensor is superior compared with the bare GCE. The higher sensitivity of the SWASV method for BiFE compared with the bare GCE was explained by the lower polarisation resistance values of the former. Moreover, the potential of zero charge was also determined, and an explanation whether the system is under kinetic- and/or diffusion-controlled process is given. PMID- 29329706 TI - Unattended reaction monitoring using an automated microfluidic sampler and on line liquid chromatography. AB - In-process sampling and analysis is an important aspect of monitoring kinetic profiles and impurity formation or rejection, both in development and during commercial manufacturing. In pharmaceutical process development, the technology of choice for a substantial portion of this analysis is high-performance liquid chromatography (HPLC). Traditionally, the sample extraction and preparation for reaction characterization have been performed manually. This can be time consuming, laborious, and impractical for long processes. Depending on the complexity of the sample preparation, there can be variability introduced by different analysts, and in some cases, the integrity of the sample can be compromised during handling. While there are commercial instruments available for on-line monitoring with HPLC, they lack capabilities in many key areas. Some do not provide integration of the sampling and analysis, while others afford limited flexibility in sample preparation. The current offerings provide a limited number of unit operations available for sample processing and no option for workflow customizability. This work describes development of a microfluidic automated program (MAP) which fully automates the sample extraction, manipulation, and on line LC analysis. The flexible system is controlled using an intuitive Microsoft Excel based user interface. The autonomous system is capable of unattended reaction monitoring that allows flexible unit operations and workflow customization to enable complex operations and on-line sample preparation. The automated system is shown to offer advantages over manual approaches in key areas while providing consistent and reproducible in-process data. PMID- 29329705 TI - Low-cost and disposable sensors for the simultaneous determination of coenzyme Q10 and alpha-lipoic acid using manganese (IV) oxide-modified screen-printed graphene electrodes. AB - In this work, for the first time, manganese (IV) oxide-modified screen-printed graphene electrodes (MnO2/SPGEs) were developed for the simultaneous electrochemical detection of coenzyme Q10 (CoQ10) and alpha-lipoic acid (ALA). This sensor exhibits attractive benefits such as simplicity, low production costs, and disposability. Cyclic voltammetry (CV) was used to characterize the electrochemical behavior of the analyte and investigate the capacitance and electroactive surface area of the unmodified and modified electrode surfaces. The electrochemical behavior of CoQ10 and ALA on MnO2/SPGEs was also discussed. Additionally, square wave anodic stripping voltammetry (SWASV) was used for the quantitative determination of CoQ10 and ALA. Under optimal conditions, the obtained signals are linear in the concentration range from 2.0 to 75.0 MUg mL-1 for CoQ10 and 0.3-25.0 MUg mL-1 for ALA. The low limits of detection (LODs) were found to be 0.56 MUg mL-1 and 0.088 MUg mL-1 for CoQ10 and ALA, respectively. Moreover, we demonstrated the utility and applicability of the MnO2/SPGE sensor through simultaneous measurements of CoQ10 and ALA in dietary supplements. The sensor provides high accuracy measurements, exhibiting its high potential for practical applications. PMID- 29329707 TI - Simultaneous determination of 117 pesticides and 30 mycotoxins in raw coffee, without clean-up, by LC-ESI-MS/MS analysis. AB - This paper describes the optimization and validation of an acetonitrile based method for simultaneous extraction of multiple pesticides and mycotoxins from raw coffee beans followed by LC-ESI-MS/MS determination. Before extraction, the raw coffee samples were milled and then slurried with water. The slurried samples were spiked with two separate standard solutions, one containing 131 pesticides and a second with 35 mycotoxins, which were divided into 3 groups of different relative concentration levels. Optimization of the QuEChERS approach included performance tests with acetonitrile acidified with acetic acid or formic acid, with or without buffer and with or without clean-up of the extracts before LC-ESI MS/MS analysis. For the clean-up step, seven d-SPE sorbents and their various mixtures were evaluated. After method optimization a complete validation study was carried out to ensure adequate performance of the extraction and chromatographic methods. The samples were spiked at 3 concentrations levels with both mycotoxins and pesticides (with 6 replicates at each level, n = 6) and then submitted to the extraction procedure. Before LC-ESI-MS/MS analysis, the acetonitrile extracts were diluted 2-fold with methanol, in order to improve the chromatographic performance of the early-eluting polar analytes. Calibration standard solutions were prepared in organic solvent and in blank coffee extract at 7 concentration levels and analyzed 6 times each. The method was assessed for accuracy (recovery %), precision (RSD%), selectivity, linearity (r2), limit of quantification (LOQ) and matrix effects (%). PMID- 29329709 TI - Characterization of singly and multiply PEGylated insulin isomers by reversed phase ultra-performance liquid chromatography interfaced with ion mobility mass spectrometry. AB - Conjugation of poly(ethylene glycol) (PEG) to protein drugs (PEGylation) is increasingly utilized in the biotherapeutics field because it improves significantly the drugs' circulatory half-life, solubility, and shelf-life. The activity of a PEGylated drug depends on the number, size, and location of the attached PEG chain(s). This study introduces a 2D separation approach, including reversed-phase ultra-performance liquid chromatography (RP-UPLC) and ion mobility mass spectrometry (IM-MS), in order to determine the structural properties of the conjugates, as demonstrated for a PEGylated insulin sample that was prepared by random amine PEGylation. The UPLC dimension allowed separation based on polarity. Electrospray ionization (ESI) of the eluates followed by in-source dissociation (ISD) truncated the PEG chains and created insulin fragments that provided site specific information based on whether they contained a marker at the potential conjugation sites. Separation of the latter fragments by size and charge in the orthogonal IM dimension (pseudo-4D UPLC-ISD-IM-MS approach) enabled clear detection and identification of the positional isomers formed upon PEGylation. The results showed a highly heterogeneous mixture of singly and multiply conjugated isomers plus unconjugated material. PEGylation was observed on all three possible attachment sites (epsilon-NH2 of LysB29, A- and B-chain N termini). Each PEGylation site was validated by analysis of the same product after disulfide bond cleavage, so that the PEGylated A- and B- chain could be individually characterized with the same pseudo-4D UPLC-ISD-IM-MS method. PMID- 29329708 TI - Detection of native proteins using solid-substrate electrospray ionization mass spectrometry with nonpolar solvents. AB - Detection of native proteins, particularly directly from raw biological samples, has been a challenging task for mass spectrometry. In this study, we demonstrated that solid-substrate electrospray ionization mass spectrometry with nonpolar solvents such as n-hexane could allow detection of native proteins and protein complexes directly from raw biological samples. Mechanistic study revealed that the process involved rapid vaporization of the nonpolar solvent, temperature reduction of substrate surface, condensation of water from the ambient air, and spray ionization of the condensed water with analytes under the electric field. The fine spray with water at low temperature allowed the technique to detect native proteins, even directly from viscous samples (e.g., egg white) and solid samples (e.g., bone marrow). This study sheds new insight into the sampling and ionization process of mass spectrometry and provides a technique of great potential for characterization of proteins. PMID- 29329710 TI - Hydride generation coupled with thioglycolic acid coated gold nanoparticles as simple and sensitive headspace colorimetric assay for visual detection of Sb(III). AB - Antimony (Sb) is a toxic element which causes different health problems including cardiac problems and lung cancer in humans, and its levels in surface water can be noticeably increased to 100 MUg/L typically in the proximity of anthropogenic sources. Thus, besides instrumental techniques, it is of great significance to develop a simple, sensitive and selective analytical method for direct analysis of Sb(III) at trace level without the need of any expensive and/or complicated instrumentations and sample preparation processes. Herein, a simple and sensitive headspace colorimetric assay was developed for the detection of Sb(III) by hydride generation coupled with thioglycolic acid functionalized gold nanoparticles (TGA-AuNPs). Sb(III) in the 30 mL sample solution was converted into its volatile form (SbH3) through hydride generation reaction and headspace extracted into 100 MUL chromogenic reagent, which contains methanol as extractant and TGA-AuNPs as nanosensors, leading to aggregation of TGA-AuNPs and therefore a red-to-blue color change. Parameters influencing the chromogenic and hydride generation reactions were optimized. Addition of 300 MUM ethylenediamine tetraacetic acid (EDTA) as masking agent largely suppressed the inferences from mercury and arsenic. The proposed method can tolerate at least 10-fold As(III) and 100-fold other metal ions including Hg(II). The detection limits were 6.0 and 1.2 MUg/L Sb(III) by naked-eye and UV-Vis spectrometer, respectively, which meet the maximum admissible level in drinking water (6 MUg/L) set by the United States Environmental Protection Agency. The feasibility of the proposed method was demonstrated by rapid detection of Sb(III) in river water, lake water, ground water and sea water samples by naked-eye at a spiking level of 6 MUg/L Sb(III). PMID- 29329711 TI - Colorimetric logic gate for alkaline phosphatase based on copper (II)-based metal organic frameworks with peroxidase-like activity. AB - Nanozymes have been extensively exploited in the construction of colorimetric sensors in the past decade. However, as lack of specific recognition element, these sensors are mostly limited in the detection of hydrogen peroxide and its related agents. In this work, a colorimetric assay for the detection of alkaline phosphatase (ALP) activity was developed by employing copper (II)-based metal organic frameworks (Cu-MOFs) as peroxidase mimic and pyrophosphate (PPi) as recognition element. Benefiting from its intrinsic porosity, Cu-MOFs built from one-step self-assembly showed a superior catalytic activity over horseradish peroxidase. It was found that, in the presence of PPi, the catalytic activity of Cu-MOFs was greatly inhibited due to the ultrastrong binding ability of Cu2+ with PPi, and no colorimetric signal was recorded. However, after incubation with ALP, such negative behavior of PPi can be suppressed as the hydrolysis of PPi into orthophosphates (Pi) with low affinity to Cu2+, producing a colorimetric signal depending on ALP level. On this basis, a way for quantitative analysis of ALP activity was paved accordingly. Compared with previously reported ALP assays based on nanomaterials, this assay is simple, cost-effective and visualized, which not only allows highly sensitive analysis of ALP activity with a detection limit of 0.19 U/L, but also exhibits a good sensing performance in serum samples. Furthermore, based on the distinct colorimetric signals induced by PPi and ALP, an IMPLICATION logic gate was constructed. We hope that this study could provide a new insight for designing nanozyme-based highly specific colorimetric sensors. PMID- 29329712 TI - Risk Factors and Frequency of Ingrown Nails in Adult Diabetic Patients. AB - The present study evaluated the properties of nails, frequency of ingrown nails in patients with type 2 diabetes mellitus (DM), risk factors for developing ingrown nails, and effect of diabetic polyneuropathy and vasculopathy on the development and outcome of ingrown nails. Our 6-month epidemiologic prospective study included 300 patients with type 2 DM attending a DM outpatient clinic for routine examinations. The general characteristics and foot changes of the study population were investigated. Diabetic polyneuropathy and vasculopathy were evaluated using a biothesiometer, monofilament tests, and arterial Doppler ultrasonography. The frequency of ingrown nails was 13.6%. Multivariate analysis with logistic regression showed that body mass index (odds ratio [OR] 1.077, 95% confidence interval [CI] 1.007 to 1.15; p = .03), previous trauma (OR 2.828, 95% CI 1.017 to 7,867, p = .042), a weak dorsalis pedis pulse (OR 2.72, 95% CI 1.17 to 6.30, p = .02), trimming type (OR 2.3, 95 CI 1.06 to 4.98), p = .35), onychogryphosis (OR 9.036, 95% CI 2.34 to 34.87, p = .001), and subungual hyperkeratosis (OR 4.3, 95% CI 1.99 to 9.3, p = .001) were predictive variables for ingrown nails in our population. The incidence of onychomycosis was significantly greater in patients with ingrown nails (p = .032) than in patients without ingrown nails. The nail curvature ratio was greater in the patients with ingrown nails than in the group with normal nails. Arterial Doppler ultrasound examinations showed peripheral arterial disease in 19 patients (46.9%) with ingrown nails. The prevalence of ingrown nails was greater in the patients with DM than in the healthy population. Our results indicate that nail type, nail morphology, and diabetic vasculopathy affect the formation and evolution of ingrown nails. PMID- 29329713 TI - Baseline and pre-operative 1-year mortality risk factors in a cohort of 509 hip fracture patients consecutively admitted to a co-managed orthogeriatric unit (FONDA Cohort). AB - INTRODUCTION: The aim of this study was to determine the patient characteristics that predict 1-year mortality after a hip fracture (HF). METHODS: All patients admitted consecutively with fragility HF during 1 year in a co-managed orthogeriatric unit of a university hospital (FONDA cohort) were assesed. Baseline and admission demographic, clinical, functional, analytical and body composition variables were collected in the first 72 h after admission. A protocol designed to minimize the consequences of the HF was applied. One year after the fracture patients or their carers were contacted by telephone to ascertain their vital status. RESULTS: A total of 509 patients with a mean age of 85.6 years were included. One-year mortality was 23.2%. The final multivariate model included 8 independent mortality risk factors: age >85 years, baseline functional impairment in basic activities of daily living, low body mass index, cognitive impairment, heart disease, low hand-grip strength, anaemia at admission, and secondary hyperparathyroidism associated with vitamin D deficiency. The association of several of these factors greatly increased mortality risk, with an OR (95% confidence interval [CI]) of 5.372 (3.227-8.806) in patients with 4 to 5 factors, and an OR (95% CI) of 11.097 (6.432-19.144) in those with 6 or more factors. CONCLUSIONS: In addition to previously known factors (such as age, impairment in basic activities of daily living, cognitive impairment, malnutrition and anaemia at admission), other factors, such as muscle strength and hyperparathyroidism associated with vitamin D deficiency, are associated with greater 1-year mortality after a HF. PMID- 29329714 TI - Mutation burden profile in familial Alzheimer's disease cases from India. AB - This study attempts to identify coding risk variants in genes previously implicated in Alzheimer's disease (AD) pathways, through whole-exome sequencing of subjects (N = 17) with AD, with a positive family history of dementia (familial AD). We attempted to evaluate the mutation burden in genes encoding amyloid precursor protein metabolism and previously linked to risk of dementias. Novel variants were identified in genes involved in amyloid precursor protein metabolism such as PSEN1 (chr 14:73653575, W161C, tgg > tgT), PLAT (chr 8:42039530,G272R), and SORL1 (chr11:121414373,G601D). The mutation burden assessment of dementia-related genes for all 17 cases revealed 45 variants, which were either shared across subjects, or were present in just the 1 patient. The study shows that the clinical characteristics, and genetic correlates, obtained in this sample are broadly comparable to the other studies that have investigated familial forms of AD. Our study identifies rare deleterious genetic variations, in the coding region of genes involved in amyloid signaling, and other dementia associated pathways. PMID- 29329715 TI - Ten questions you should consider before submitting an article to a scientific journal. AB - Investigating involves not only knowing the research methods and designs; it involves knowing the strategies for disseminating and publishing the results in scientific journals. An investigation is considered complete when it is published and is disclosed to the scientific community. The publication of a manuscript is not simple, since it involves examination by a rigorous editorial process evaluator to ensure the scientific quality of the proposal. The objective of this article is to communicate to potential authors the main errors or deficiencies that typically and routinely explain the decision by the referees of scientific journals not to accept a scientific article. Based on the experience of the authors as referees of national and international journals in the field of nursing and health sciences, we have identified a total of 10 types or groups, which cover formulation errors, inconsistencies between different parts of the text, lack of structuring, imprecise language, information gaps, and the detection of relevant inaccuracies. The identification and analysis of these issues enables their prevention, and is of great use to future researchers in the dissemination of the results of their work to the scientific community. In short, the best publishing strategy is one that ensures the scientific quality of the work and spares no effort in avoiding the errors or deficiencies that referees routinely detect in the articles they evaluate. PMID- 29329716 TI - Gelatin- hydroxyapatite- calcium sulphate based biomaterial for long term sustained delivery of bone morphogenic protein-2 and zoledronic acid for increased bone formation: In-vitro and in-vivo carrier properties. AB - In this study, a novel macroporous composite biomaterial consisting of gelatin hydroxyapatite-calcium sulphate for delivery of bone morphogenic protein-2 (rhBMP 2) and zoledronic acid (ZA) has been developed. The biomaterial scaffold has a porous structure and functionalization of the scaffold with rhBMP-2 induces osteogenic differentiation of MC3T3-e1 cells seen by a significant increase in biochemical and genetic markers of osteoblastic differentiation. In-vivo muscle pouch experiments showed higher mineralization using scaffold+rhBMP-2 when compared to an approved absorbable collagen sponge (ACS)+rhBMP-2 as verified by micro-CT. Co-delivery of rhBMP-2+ZA via the novel scaffold enabled a reduction in the effective rhBMP-2 doses. The presence of tartrate resistant acid phosphatase staining in the rhBMP-2 group indicates osteoclastic resorption, which could be stalled by adding ZA, which by speculation could explain the net increase in mineralization. The new scaffold allowed for slow release of rhBMP-2 in-vitro (3.3+/-0.1%) after 4weeks. Using single photon emission computed tomography (SPECT), the release kinetics of 125I-rhBMP-2 in-vivo was followed for 4weeks and a total of 65.3+/-15.2% 125I-rhBMP-2 was released from the scaffolds. In-vitro 14C-ZA release curve shows an initial burst release on day 1 (8.8+/-0.7%) followed by a slow release during the following 4weeks (13+/-0.1%). In-vivo, an initial release of 43.2+/-7.6% of 14C-ZA was detected after 1day, after which the scaffold retained the remaining ZA during 4-weeks. Taken together, our results show that the developed biomaterial is an efficient carrier for spatio-temporal delivery of rhBMP-2 and ZA leading to increased bone formation compared to commercially available carrier for rhBMP-2. PMID- 29329717 TI - Erratum. PMID- 29329718 TI - Erratum. PMID- 29329719 TI - Regulatory Potential of the RNA Processing Machinery: Implications for Human Disease. AB - Splicing and nuclear export of mRNA are critical steps in the gene expression pathway. While RNA processing factors can perform general, essential functions for intron removal and bulk export of mRNA, emerging evidence highlights that the core RNA splicing and export machineries also display regulatory potential. Here, we discuss recent insights into how this regulatory potential can selectively alter gene expression and regulate important biological processes. We also highlight the participation of RNA processing pathways in the cellular response to DNA damage at multiple levels. These findings have important implications for the contribution of selective mRNA processing and export to the development of human cancers and neurodegenerative disorders. PMID- 29329721 TI - Quantifying fluctuation in glucose levels to identify early changes in glucose homeostasis in cystic fibrosis. AB - BACKGROUND: Cystic fibrosis related diabetes (CFRD) is associated with increased morbidity in CF. Variability in physiological systems is associated with dysfunctional homeostasis. We examined whether fluctuation in glucose is a marker of CFRD or "pre-diabetes". METHODS: Using a machine learning approach, we compared glucose IQR to current diagnostic criteria in a review of continuous glucose monitoring data. RESULTS: Analysis was performed on 248 studies from 142 children. Calculated IQR (cIQR) was increased between children with CFRD, normal glucose homeostasis and indeterminate status (p<0.0001) and impaired glucose tolerance (p<0.05, Kruskal-Wallis test). In subjects who developed CFRD (n=20), cIQR increased between baseline and diagnosis (1.4mmol/L versus 2.4mmol/L, p<0.0001, Wilcoxon test). Area under the curve for CFRD on the basis of cIQR was 0.865 (p<0.0001). Neither episodes of hypoglycaemia nor cIQR at baseline predicted CFRD. CONCLUSIONS: Glucose fluctuation on CGMS can be quantified by calculating the IQR. This information may improve early recognition of abnormal glucose homeostasis. PMID- 29329722 TI - Long-term Average Speech Spectra of Postlingual Cochlear Implant Users. PMID- 29329720 TI - Discoveries of Extrachromosomal Circles of DNA in Normal and Tumor Cells. AB - While the vast majority of cellular DNA in eukaryotes is contained in long linear strands in chromosomes, we have long recognized some exceptions like mitochondrial DNA, plasmids in yeasts, and double minutes (DMs) in cancer cells where the DNA is present in extrachromosomal circles. In addition, specialized extrachromosomal circles of DNA (eccDNA) have been noted to arise from repetitive genomic sequences like telomeric DNA or rDNA. Recently eccDNA arising from unique (nonrepetitive) DNA have been discovered in normal and malignant cells, raising interesting questions about their biogenesis, function and clinical utility. Here, we review recent results and future directions of inquiry on these new forms of eccDNA. PMID- 29329723 TI - Prolonged Grief and Cognitive Decline: A Prospective Population-Based Study in Middle-Aged and Older Persons. AB - OBJECTIVE: Bereavement can result in unresolved and prolonged grief, often termed prolonged grief disorder (PGD). The impact of PGD on cognitive functioning is poorly understood. The aim of the study was to compare the cognitive decline, assessed by repeated measures of different cognition domains, between persons with normal and PGD and a non-grieving reference population in a 7-year follow-up study. METHODS: The study sample comprised 3126 non-demented persons, mean age: 64 years, of the Rotterdam Study. Participants were classified into three groups: no grief (reference group, N = 2,582), normal grief (N = 418), and prolonged grief disorder (N = 126). Participants were assessed with the Complicated Grief Inventory and underwent cognitive testing (Mini-Mental State Examination [MMSE], Letter-Digit Substitution test, Stroop test, Word fluency task, Word learning test). Analyses were adjusted for baseline cognition and depressive symptoms; persons with major depressive disorders were excluded. RESULTS: Compared with the reference group, participants with PGD showed a decrease in global cognitive function, MMSE scores, and World learning test (immediate and delayed) over time. Participants with normal grief did not show a stronger cognitive decline in any of cognitive tests than the reference group. CONCLUSIONS: Participants with PGD showed a stronger cognitive decline than the reference group during 7 years of follow-up. This suggests that PGD is a risk factor for cognitive decline, but this study cannot detect the psychobiological mechanism underlying this longitudinal association. PMID- 29329724 TI - The Potential of Cold Plasma for Safe and Sustainable Food Production. AB - Cold plasma science and technology is increasingly investigated for translation to a plethora of issues in the agriculture and food sectors. The diversity of the mechanisms of action of cold plasma, and the flexibility as a standalone technology or one that can integrate with other technologies, provide a rich resource for driving innovative solutions. The emerging understanding of the longer-term role of cold plasma reactive species and follow-on effects across a range of systems will suggest how cold plasma may be optimally applied to biological systems in the agricultural and food sectors. Here we present the current status, emerging issues, regulatory context, and opportunities of cold plasma with respect to the broad stages of primary and secondary food production. PMID- 29329725 TI - Aquagenic urticaria: Severe extra-cutaneous symptoms following cold water exposure. PMID- 29329726 TI - Patient-centered communication of community treatment assistants in Tanzania predicts coverage of future mass drug administration for trachoma. AB - OBJECTIVE: Prevention of Trachoma, the leading cause of infectious blindness, requires community treatment assistants (CTAs) to perform mass drug administration (MDA) of azithromycin. Previous research has shown that female CTAs have higher MDA coverage, but no studies have focused on the content of conversation. We hypothesize that female CTAs had more patient-centered communication and higher MDA coverage. METHODS: In 2011, CTAs from 23 distribution sites undergoing MDA as part of the Partnership for Rapid Elimination of Trachoma were selected. CTA - villager interactions were audio recorded. Audio was analyzed using an adaptation of the Roter Interaction Analysis System. The outcome of interest was the proportion of adults receiving MDA in 2011 who returned in 2012. RESULTS: 58 CTAs and 3122 interactions were included. Sites with female CTAs had significantly higher patient-centeredness ratio (0.548 vs 0.400) when compared to sites with male CTAs. Sites with more patient-centered interactions had higher proportion of patients return (p = 0.009). CONCLUSION: Female CTAs had higher proportion of patient-centered communication. Patient centered communication was associated with higher rates of return for MDA. PRACTICE IMPLICATIONS: Greater patient-centered connection with health care providers affects participation in public health efforts, even when those providers are lay health workers. PMID- 29329727 TI - Parent activation in the pediatric emergency department: Theory vs. reality. AB - OBJECTIVE: To measure parent activation and test for its associations with sociodemographics, clinical factors, and short-term outcomes. METHODS: By convenience sampling, 246 parents of children treated in an emergency department (ED) of a children's hospital completed the Parent-Patient Activation Measure (P PAM) and answered sociodemographic questions. Clinical information was abstracted from medical records. Phone calls to parents and primary care physician offices were conducted within one-month post-ED visit for information about short-term outcomes. RESULTS: We discovered higher than expected activation among our sample (mean = 73), higher activation scores by Spanish language and child chronic illness status, and associations between activation scores and ED visit and discharge instruction comprehension and filling prescriptions (short-term outcomes). However, the theory of parent activation did not adequately fit the data. CONCLUSION: Before the P-PAM in pediatric clinical care becomes widespread, further research is necessary to better understand parent activation and its associations with pediatric outcomes. PRACTICE IMPLICATIONS: Although the PAM has shown promise in accurately measuring patient activation across various populations and disease processes, the same is not yet true of the P-PAM. To date, pediatric studies using the P-PAM have called its psychometric properties into question. Further research is needed to understand and measure parent activation. PMID- 29329728 TI - Gene expression patterns associated with human placental trophoblast differentiation. AB - Cell fusion is a hallmark of placental trophoblast cell differentiation and the mature syncytiotrophoblasts play essential roles for fetal-maternal exchange and production of pregnancy-related hormones. Using a well-established in vitro trophoblast differentiation model, we performed a microarray analysis on mRNA expression in trophoblast and syncytiotrophoblast cell cultures. Dramatic changes in gene expression patterns were detected during trophoblast differentiation. Real-time PCR analysis confirmed the reliability of the microarray data. As many as 3524 novel and known genes have been found to be up- or down-regulated for >2 fold. A number of cell cycle regulator including CDC6, CDC20, Cyclins B2, L1 and E2, were down-regulated in the syncytiotrophoblast, providing a mechanism for the loss of mitotic activity during trophoblast differentiation. Further characterization on the identified genes may lead to better understanding of placental patho-physiology in obstetric diseases such as preeclampsia. PMID- 29329729 TI - Elevated neuron-specific enolase and S100 calcium-binding protein B concentrations in cerebrospinal fluid of patients with anti-N-methyl-d-aspartate receptor encephalitis. AB - BACKGROUND: Anti-N-methyl-d-aspartate receptor (NMDAR) encephalitis is a relatively common autoimmune neurological disease of the central nervous system (CNS). Neuron-specific enolase (NSE) and S100 calcium-binding protein B (S100B) are structural proteins of the central nervous system (CNS). In patients with CNS injury accompanied by nervous tissue and cellular damage, these structural proteins are released from cells; their extracellular concentrations, including those in cerebrospinal fluid (CSF) and blood, subsequently increase. METHODS: Thirty-six patients with anti-NMDAR encephalitis were prospectively recruited. The CSF NSE and S100B concentrations were measured in 19 and 17 patients, respectively. The CSF NSE and S100B concentrations were measured in 21 patients with noninflammatory neurological disease as controls. All measurements were performed using enzyme-linked immunosorbent assays. RESULTS: The CSF NSE and S100B concentrations were remarkably higher in the patients with anti-NMDAR encephalitis than in the controls. The early NSE or S100B concentrations in CSF were associated with the mRS. CONCLUSION: CSF NSE and S100B concentration in patients with anti-NMDAR encephalitis is higher than in patients with non inflammatory neurological disease. The early NSE or S100B concentrations in CSF were associated with the mRS and we can use it to determine the prognosis of the disease. PMID- 29329730 TI - Mechanical thrombectomy in acute ischaemic stroke: a review of the different techniques. AB - Endovascular mechanical thrombectomy (MT) is reserved for acute ischaemic stroke secondary to large vessel occlusion. The various MT techniques employed in the treatment of hyperacute strokes are constantly evolving with new devices and improvisation of existing technology (Wahlgren, et al 2016). In this review, we describe a variety of MT techniques gained from our experience of performing over 350 procedures in 7 years of providing a 24/7 service within the national framework of a hyperacute stroke centre. We outline a number of endovascular techniques, procedure limitations, and potential complications. PMID- 29329731 TI - Multimodality imaging evaluation before transcatheter aortic valve implantation: incidence of contrast medium-induced acute kidney injury, risk factors and prognosis. AB - AIM: To evaluate the incidence, risk factors, and prognostic implications of contrast medium-induced acute kidney injury (CI-AKI) in patients undergoing transcatheter aortic valve implantation (TAVI) evaluation. MATERIALS AND METHODS: Datasets from 98 out of 207 consecutive patients referred for multidetector computed tomography (MDCT) for TAVI evaluation were eligible for evaluation and were analysed retrospectively. The incidence of CI-AKI was correlated to outcome and to potential risk factors: kidney function (estimated glomerular filtration rate [eGFR]), heart failure, diabetes, amount of contrast medium, and duration of examination period. RESULTS: CI-AKI occurred in 67 patients (68.4%) and mainly correlated with eGFR (p=0.01) and the amount of contrast medium as a function of eGFR (p=0.04). CI-AKI occurred before TAVI in 36 (53.7%) patients of which 13 (19.4%) did not undergo TAVI. In-hospital all-cause mortality was 21.4%, and of those 21 patients, 18 (85.7%) had CI-AKI and nine (42.9%) did not undergo TAVI. One-year all-cause mortality was 39.8%, and of those 39 patients who died within 1 year, 31 (79.5%) had CI-AKI. CONCLUSION: CI-AKI mostly occurs already before TAVI as a consequence of pre-procedural imaging, which therefore represents the main contributor for CI-AKI in relation to TAVI. Regarding the observation that some patients will ultimately have no benefit because TAVI is not performed and the poor prognosis linked to CI-AKI should encourage improvement in patient selection when referring to pre-procedural imaging. PMID- 29329732 TI - Changes in quantitative CT image features of ground-glass nodules in differentiating invasive pulmonary adenocarcinoma from benign and in situ lesions: histopathological comparisons. AB - AIM: To evaluate progressive changes in quantitative CT features of the non-solid component of ground-glass nodules (GGNs) from baseline to follow-up to differentiate invasive (minimally invasive adenocarcinoma [MIA] and invasive adenocarcinoma [IA]) GGNs from benign or pre-invasive (adenocarcinoma in situ [AIS]) lesions. MATERIALS AND METHODS: Patients with a GGN detected at baseline and follow-up computed tomography (CT), examined by tissue sampling were included in the study. The diameter and mean, maximum, minimum CT density and density deviation from the non-solid component of whole GGNs were measured. Progression of these features over time was analysed by linear regression analysis. Multivariate receiver operating characteristics analyses of combined measures created by a logistic regression model were performed to evaluate diagnostic performance for invasive GGNs. RESULTS: Sixty-one patients (24 males) with 70 GGNs were included. Fifteen GGNs were benign, six AIS, 38 MIA, and 11 IA. The mean diameter of all histological subtypes increased from baseline to follow-up, the largest increase was found in the MIA group (p<0.001). For MIA and IA, the mean, maximum, minimum density, and density deviation had a positive correlation over time, whilst benign and pre-invasive GGNs showed a negative correlation for these features. A diagnostic model based on three GGN features (increasing in diameter, mean density, and density deviation) identified invasive GGNs with a sensitivity, specificity and area under the receiver operating characteristic (ROC) curve (AUC) of 83.7%, 61.9%, and 0.786, respectively (p<0.001). CONCLUSION: In GGN follow-up, the diameter of benign and AIS, and invasive GGNs significantly increased. Additional analysis of mean density and density deviation in the non solid component may help to identify invasive GGNs. PMID- 29329733 TI - Association between leukoaraiosis and cerebral blood flow territory alteration in asymptomatic internal carotid artery stenosis. AB - AIM: To test the hypothesis that leukoaraiosis (also known as white matter lesion) is associated with cerebral blood flow territory change as revealed by territorial arterial spin-labeling (TASL) magnetic resonance imaging (MRI) in patients with asymptomatic internal carotid artery stenosis (aICAS). MATERIALS AND METHODS: The institutional review board approved this study. Thirty-three patients with aICAS were included prospectively and divided into high-grade (ultrasonographic stenosis >=70%, n=17) and low-grade (n=16) groups; 16 healthy subjects were also included. Cerebral flow territory was delineated for left ICA, right ICA, and vertebral arteries using TASL MRI and fuzzy clustering. Two licensed neuroradiologists independently and dichotomously rated the hemispherical asymmetry of flow territories. Flow territories were finalised by consensus, and when asymmetry was present, these were divided into normal and abnormal areas where the raters separately assessed leukoaraiosis based on fluid attenuated inversion recovery images and the Fazekas scale. RESULTS: The inter rater agreement in the evaluation of flow territory asymmetry with TASL imaging in conjunction with time-of-flight angiogram is substantial (Cohen's kappa=0.82). Multinomial logistic regression (reference group=healthy subjects) indicates that global leukoaraiosis is not a predictor of aICAS after controlling for age, whereas in high-grade patients, the deep white matter lesion is more severe in the area receiving collateral circulation than in the area with normal flow territory (Wilcoxon signed-rank test, p=0.03). CONCLUSION: TASL MRI is clinically feasible in aICAS and shows that more severe deep white matter lesions are associated with collateral circulation in high-grade patients. PMID- 29329734 TI - The morphological changes of bronchovascular bundles within subsolid nodules on HRCT correlate with the new IASLC classification of adenocarcinoma. AB - AIM: To observe the morphological changes of bronchovascular bundles within subsolid nodules on high-resolution (HR) computed tomography (CT) and analyse the correlation with the new adenocarcinoma classification. MATERIALS AND METHODS: Two hundred and sixteen lesions (absent consolidation on mediastinal window) were reviewed retrospectively. CT features including dimensions, contour, morphological changes of the blood vessels, and bronchi/bronchioles, vacuole signs, and their correlation with histopathology were evaluated. RESULTS: Excluding nine non-cancerous lesions, 34 pre-invasive lesions (PILs) including 15 atypical adenomatous hyperplasias (AAHs) and 19 adenocarcinomas in situ (AISs), 21 minimally invasive adenocarcinomas (MIAs), and 152 invasive adenocarcinomas (IACs) were analysed. Lepidic, acinar, and papillary patterns were identified in this cohort of adenocarcinomas. IACs were grouped into three types: type I (lepidic pattern >=80%, n=47), type II (lepidic pattern >=50%, <80%, n=67), and type III (lepidic pattern <50%, n=38). The contour of lesions, and morphological changes in vessels and bronchi/bronchioles significantly correlated with the classification of PIL, MIA, and IACs (p=0.000, p=0.000, and p=0.017, respectively). In IACs, the prevalence of vascular abnormalities on HRCT significantly correlated with (p=0.000) the proportion of non-lepidic pattern (23.40% in type I, 58.21% in type II, and 76.32% in type III); the prevalence of bronchial/bronchiolar abnormalities was higher (p=0.008) in type II/III (20.95%) compared with type I (6.38%). CONCLUSIONS: The morphological changes of vessels and bronchi/bronchioles within the subsolid nodules on HRCT help to differentiate IAC from PIL and MIA, and are more common in non-lepidic predominant adenocarcinomas. PMID- 29329736 TI - Research on Adolescent Sexuality Should Be Inclusive of Disability. PMID- 29329737 TI - The Authors reply. PMID- 29329735 TI - Diagnostic value of early postoperative MRI and diffusion-weighted imaging following trans-sphenoidal resection of non-functioning pituitary macroadenomas. AB - AIM: To establish the value of early contrast-enhanced magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) in differentiating residual pituitary adenoma from postoperative surgical changes. MATERIALS AND METHODS: Thirty patients with non-functioning pituitary macroadenomas, who were undergoing trans sphenoidal adenomectomy, were prospectively studied. Patients were imaged with both MRI and DWI in the early postoperative period, as well as 6-months post surgery. Patterns of postoperative contrast enhancement were described (non enhancement, peripheral enhancement, and nodular enhancement). Apparent diffusion coefficient (ADC) maps were utilised to select the region of interest (ROI) for ADC calculations. RESULTS: Seventeen patients had postoperative surgical granulation tissue and 13 had residual adenoma based on the 6 months follow-up imaging. Mean ADC values of postoperative granulation tissue and residual adenoma were 1.476+/-0.476*10-3 mm2/s and 0.855+/-0.190*10-3 mm2/s, respectively, in the early postoperative period, and 1.357+/-0.416*10-3 mm2/s and 0.829+/-0.201*10-3 mm2/s, respectively, at the 6-month follow-up. ADC values of granulation tissue were significantly different from that of residual adenoma at both time points (p<0.001). Sensitivity, specificity, positive and negative predictive values of early MRI were 84.6%, 94.1%, 91.7%, and 88.9% respectively, and of early DWI were 91%, 97%, 94.3%, and 93%, respectively. CONCLUSION: Early postoperative DWI after trans-sphenoidal resection of pituitary macroadenomas may be more helpful than early MRI in differentiating residual adenoma from post-surgical changes. PMID- 29329738 TI - Relationship Between Proprioception and Endurance Functionality of the Cervical Flexor Muscles in Chronic Neck Pain and Asymptomatic Participants. AB - OBJECTIVE: The purpose of this study was to compare the relationship between flexion endurance capacity and joint position error in participants with or without chronic neck pain (CNP). METHODS: Sixty-one CNP and 60 asymptomatic volunteers participated in this cross-sectional, case-control, and correlational analysis study. The measured variables included absolute and constant joint repositioning errors in the sagittal and horizontal directions, clinical flexor endurance test score, pain intensity, and neck disability index. RESULTS: The groups did not statistically differ in flexion endurance (P > .05). The CNP group had a smaller absolute error on the right (P < .01) and left (P = .01) rotation and an overshooting error pattern in the flexion direction (P < .05). But the asymptomatic group did not exhibit any over-/undershooting pattern tendency (P > .05). Although flexion endurance was not correlated with any of the joint repositioning error components in either group, pain and disability scores were significantly correlated with left rotation absolute error (r = -0.34 and rho = 0.37, respectively). CONCLUSION: The clinical cervical flexor endurance test, ignoring the relative contribution of the deep and superficial groups of muscles, may not efficiently characterize CNP patients. PMID- 29329739 TI - Association Between Symptoms of Central Sensitization and Cognitive Behavioral Factors in People With Chronic Nonspecific Low Back Pain: A Cross-sectional Study. AB - OBJECTIVE: The objective of this cross-sectional study was to analyze the relationship between symptoms of central sensitization (CS) and important cognitive behavioral and psychosocial factors in a sample of patients with chronic nonspecific low back pain. METHODS: Participants with chronic nonspecific low back pain for at least 3 months were included in the study. They completed several questionnaires and a functional test. Pearson's correlation was used to analyze associations between symptoms of CS and pain behavior, functioning, pain, pain catastrophizing, kinesiophobia, and illness perceptions. Additionally, a between-group analysis was performed to compare patients with and without clinically relevant symptoms of CS. RESULTS: Data from 38 participants were analyzed. Significant associations were found between symptoms of CS and all other outcomes, especially current pain (r = 0.510, P = .001), mean pain during the past 7 days (r = 0.505, P = .001), and pain catastrophizing (r = 0.518, P = .001). Patients with clinically relevant symptoms of CS scored significantly worse on all outcomes compared with persons without relevant symptoms of CS, except on functioning (P = .128). CONCLUSIONS: Symptoms of CS were significantly associated with psychosocial and cognitive behavioral factors. Patients exhibiting a clinically relevant degree of symptoms of CS scored significantly worse on most outcomes, compared with the subgroup of the sample with fewer symptoms of CS. PMID- 29329740 TI - Criteria to Screen for Traumatic Cervical Spine Instability: A Consensus of Chiropractic Radiologists. AB - OBJECTIVE: The purpose of this study was to establish consensus on a radiographic definition for cervical instability for routine use in chiropractic patients who sustain trauma to the cervical spine. METHOD: We conducted a modified Delphi study with a panel of chiropractic radiologists. Panelists were asked to rate potential screening criteria for traumatic cervical spine instability when assessing cervical spine radiographs. Items rated as important for inclusion by at least 60% of participants in round 1 were submitted for a second round of voting in round 2. Items rated for inclusion by at least 75% of the participants in round 2 were used to create the consensus-based list of screening criteria. Participants were asked to vote and reach agreement on the final screening criteria list in round 3. RESULTS: Twenty-nine chiropractic radiologists participated in round 1. After 3 rounds of survey, 85% of participants approved the final consensus-based list of criteria for traumatic cervical spine instability screening, including 6 clinical signs and symptoms and 5 radiographic criteria. Participants agreed that the presence of 1 or more of these clinical signs and symptoms and/or 1 or more of the 5 radiographic criteria on routine static radiographic studies suggests cervical instability. CONCLUSION: The consensus-based radiographic definition of traumatic cervical spine instability includes 6 clinical signs and symptoms and 5 radiographic criteria that doctors of chiropractic should apply to their patients who sustain trauma to the cervical spine. PMID- 29329741 TI - Sex differences of hippocampal structure in bipolar disorder. AB - Although differential patterns in clinical characteristics have been consistently noted between male and female patients with bipolar disorder (BD), the effect of sex on the hippocampal structure remains unclear. To address this, the present study investigated the effects of BD and sex on the hippocampal structure, and the relationship between the hippocampal structure and cognitive performance. Morphometric and neurocognitive analyses were performed in 91 subjects (patients with BD: male/female = 33/19; normal controls: male/female = 22/17). Patients had significantly decreased left parahippocampal gyrus area and left/right hippocampal volume compared to normal controls. Within the BD group only, female patients presented with smaller right hippocampal volume than males. In the Spatial Span (SS) test (used to assess working memory capacity) and the Maze test (used to evaluate the ability to anticipate), patients demonstrated decreased performance compared to normal controls, with a significant main effect of sex. Left parahippocampal gyrus area and right hippocampal volume were positively correlated with SS and Maze in patients; moreover, right hippocampal volume predicted 17.4% of SS performance variance. These results suggest that there may be a difference between male and female patients with regard to right hippocampal volume, and that female patients may need more attention than males. PMID- 29329742 TI - Frontal activity measured by near-infrared spectroscopy in patients taking different atypical antipsychotic drugs: A cross-sectional study. AB - Using near-infrared spectroscopy, we examined changes in the concentration of oxygenated hemoglobin ([oxy-Hb]) in the frontal lobe during a verbal fluency task in 20 patients with schizophrenia (10 patients each receiving olanzapine [OLZ] and risperidone [RIS]) and 10 healthy controls. We found that [oxy-Hb] levels in the prefrontal region were higher in the patients receiving OLZ than in those receiving RIS. These results suggest that antipsychotic drugs have different effects on cerebral hemodynamic patterns, which may reflect frontal lobe function. Further studies with a larger sample size are needed to verify our preliminary findings. PMID- 29329744 TI - Letter to the Editor regarding "Use of both anterograde and retrograde internal mammary vessels in the bipedicled deep inferior epigastric perforator flap for unilateral breast reconstruction". PMID- 29329743 TI - GABA and glutamate in children with Tourette syndrome: A 1H MR spectroscopy study at 7T. AB - Tourette syndrome (TS) is characterized by presence of chronic, fluctuating motor and phonic tics. The underlying neurobiological basis for these movements is hypothesized to involve cortical-striatal-thalamo-cortical (CSTC) pathways. Two major neurotransmitters within these circuits are gamma-aminobutyric acid (GABA) and glutamate. Seventy-five participants (32 with TS, 43 controls) ages 5-12 years completed 1H MRS at 7T. GABA and glutamate were measured in dorsolateral prefrontal cortex (DLPFC), ventromedial prefrontal cortex (VMPFC), premotor cortex (PMC), and striatum, and metabolites quantified using LCModel. Participants also completed neuropsychological assessment emphasizing inhibitory control. Scans were well tolerated by participants. Across ROIs combined, glutamate was significantly higher in the TS group, compared to controls, with no significant group differences in GABA observed. ROI analyses revealed significantly increased PMC glutamate in the TS group. Among children with TS, increased PMC glutamate was associated with improved selective motor inhibition; however, no significant associations were identified between levels of glutamate or GABA and tic severity. The dopaminergic system has long been considered to have a dominant role in TS. Accumulating evidence, however, suggests involvement of other neurotransmitter systems. Data obtained using 1H MRS at 7T supports alteration of glutamate within habitual behavior-related CSTC pathways of children with TS. PMID- 29329745 TI - Poly(methyl methacrylate) salt as film forming material to design orodispersible films. AB - This work aims to evaluate the possible use of a poly(sodium methacrylate, methyl methacrylate) (NaPMM2) plasticized by PEG400 in the design of orodispersible films (ODF). Placebo ODF prepared by solvent casting were intended to study the impact of the polymer/plasticizer ratio and residual moisture on disintegration time, stickiness and mechanical properties. The drug loading capacity was assessed using ketoprofen and paracetamol. Placebo ODF containing PEG400 in the 10-30% w/w range and 10-15% of residual moisture content were easy-to-handle, packed without failures and completely dissolved within 30 s. NaPMM2/PEG400 in 80/20 ratio allowed up to 70% of paracetamol loading, which appeared as the largest value described in literature. This ODF showed good mechanical properties and disintegration time. The same formulation loaded with 25% or 50% ketoprofen (pKa = 4.45) swelled without disintegrating, because of a partial protonation of NaPMM2, as verified by ATR-FTIR spectroscopy. However, the addition of 5% surfactants allowed the formulation of ODF containing 25% ketoprofen that disintegrated within one minute and guaranteed the complete drug dissolution within 5 min. All the presented data, discussed in the framework of information available on such copolymer, highlighted its versatility in the design of orodispersible dosage forms. PMID- 29329746 TI - Evaluation of a transtympanic delivery system in Mus musculus for extended release steroids. AB - OBJECTIVE: The current investigation evaluated a novel extended release delivery system for treating inner ear diseases. The platform technology consists of a film forming agent (FFA) and microsphere component to localize and extend drug delivery within the ear. STUDY DESIGN: Studies evaluated dissolution kinetics of microspheres with multiple encapsulates, testing of a variety of FFAs, and ability to localize to the round window membrane in mice in vivo. SETTING: Studies were completed at Orbis Biosciences and The University of Kansas Medical Center. SUBJECTS: In conjunction with in vitro characterization, an infrared dye containing microsphere formulation was evaluated for round window membrane (RWM) localization and general tolerability in C57/BL6 Mus musculus for 35 days. METHODS: In vitro characterization was performed using upright diffusion cells on cellulose acetate membranes, with drug content quantified by high performance liquid chromatography. Mus musculus dosing of infrared dye-containing microspheres was performed under anesthesia with a 27 GA needle and 2.0 MUL injection volume RESULTS: In vitro dissolution demonstrates the ability of the FFA with microsphere platform to release steroids, proteins, peptides, and nucleic acids for at least one month, while necroscopy shows the ability of the FFA with dye-loaded microspheres to remain localized to Mus musculus RWM for the same period of time, with favorable tolerability. CONCLUSIONS: Combining FFA and microsphere for localized drug delivery may enable cost-effective, extended release local delivery to the inner ear of new and existing small molecules, proteins, peptides, and nucleic acids. PMID- 29329747 TI - Antibacterial properties of Latarcin 1 derived cell-penetrating peptides. AB - Cell-penetrating peptides (CPPs) and antimicrobial peptides (AMPs) share certain physicochemical parameters such as amphipathicity, hydrophobicity, cationicity and pI, due to which these two groups of peptides also exhibit overlapping functional characteristics. In our current work, we have evaluated antimicrobial properties of cell-penetrating peptides derived from Latarcin1. Latarcin derived peptide (LDP) exhibited antimicrobial activity against representative microorganisms tested and bactericidal effect against methicillin resistant Staphylococcus aureus (MRSA), which was used as model organism of study in the present work. However, LDP exhibited cytotoxicity against HeLa cells. Further, nuclear localization sequence (NLS) was fused to LDP and interestingly, LDP-NLS showed antimicrobial effect against bacteria, showed bactericidal effect against MRSA and also did not exhibit cytotoxicity in HeLa cells till the highest concentrations tested. Thus, our results inferred that fusion of NLS to LDP significantly reduced cytotoxicity of LDP against HeLa cells (Ponnappan and Chugh, 2017) and exhibited significantly higher cell-penetrating activity in MRSA in comparison to LDP alone. Consolidated results of uptake assays, time-kill assays and PI membrane damage assays show that LDP killed MRSA mainly by membrane damage, where as LDP-NLS might have intracellular targets. Owing to its cell penetrating activity in HeLa cells and antimicrobial activity against MRSA, LDP NLS efficiently inhibited intracellular infection of MRSA in HeLa cells as observed in invasion assays. Hence, our results suggest that LDP-NLS is a dual action peptide with AMP and CPP activity and could be potential candidate as peptide antibiotic and drug delivery vector in both mammalian and bacterial cells. PMID- 29329748 TI - Oral Bifidobacterium longum expressing GLP-2 improves nutrient assimilation and nutritional homeostasis in mice. AB - Bifidobacterium has been developed for the oral delivery of peptides and has the added beneficial effect on our bodies through its probiotic properties. Here, we utilize Bifidobacterium as a delivery system to orally deliver Glucagon like peptide-2 (GLP-2). We constructed vector derived from pET-31b(+) to construct a Bifidobacterium longum expressing GLP-2. We then determined the bioactivity of recombinant Bifidobacterium in Caco-2 cells. Finally, we quantified newly synthesized ApoB48 and chylomicron production in mice infused with exogenous GLP 2 or Bifidobacterium expressing GLP-2. Results based on secretion of the triglyceride (TG)-rich lipoprotein (TRL)-ApoB48 and secretion of chylomicron revealed that recombinant Bifidobacterium was efficient in treating intestinal dysfunction,suggesting an alternative way to use Bifidobacterium as a delivery system to deliver GLP-2 for gastrointestinal nutrition coordination. PMID- 29329749 TI - Assessment of the diagnostic performance of four methods for the detection of Giardia duodenalis in fecal samples from human, canine and feline carriers. AB - Enteric parasitic diseases including giardiasis are of public health concern. Different methods are available for the diagnosis of this parasitic infection in fecal samples such as the identification of protozoan cysts and trophozoites by light microscopy, detection of specific antigens by ELISA, and amplification of DNA fragments by PCR. The present study aimed at assessing the performance of four laboratory tests for the detection of Giardia duodenalis in fecal specimens from three different host species with a previous diagnosis of giardiasis; canine, feline and human patients provided new stool samples to be retested for Giardia before initiating treatment with antiprotozoal drugs. For this purpose, triplicate fecal specimens from 54 humans, 24 dogs and 18 cats living in the city of Niteroi, RJ, southeast Brazil, were analysed by light microscopy, ELISA, immunochromatography, and nested PCR. The centrifugal-flotation method detected Giardia cysts in 89.6% (86/96) of the fecal samples. The protozoan parasite was detected via immunochromatography in 87.5% (84/96) of these samples. Giardia was detected by ELISA in 69.8% (67/96) of the stool specimens from carriers with a previous diagnosis of Giardia infection. Giardia was detected by PCR in only 39.6% (38/96) of the fecal specimens. Based on these findings, we suggest that, among the four assays that were used in this study, the zinc sulphate flotation technique (Faust et al., 1939) is the best diagnostic assay in terms of sensitivity and specificity to detect G. duodenalis on serially collected samples from dogs, cats and humans. PMID- 29329750 TI - Women and the Experience of Pain and Opioid Use Disorder: A Literature-based Commentary. AB - It is generally understood that pain experience and opioid abuse have relied on male-dominated models. However, sex and gender play a role in both pain experience and opioid use disorder. Using the previously validated Texas Tech University Health Sciences Center Sex and Gender Specific Health PubMed Advanced Search Tool, the authors used pertinent literature to develop this literature based commentary on sex and gender differences in pain experience and opioid use disorder. Women report their experience of pain more frequently, have increased rates of diagnoses related to pain, have increased pain sensitivity, and have a variable response to pain and analgesia. This variable response is due to anatomic, physiologic, hormonal, psychological, and social factors that differ by sex and gender. Women have been found to be at greater risk for opioid abuse in all age groups. This may be due to the differences in pain experience, as well as sex and gender differences in prescribing patterns, cultural norms, and the increased likelihood to experience dependency and withdrawal. Approaches to the treatment of opioid use disorder are also subject to sex and gender differences an area in need of further investigation. PMID- 29329751 TI - Progress in the neurosciences and the training of medical students. PMID- 29329752 TI - Role of frozen section in sentinel lymph node biopsy for breast cancer in the era of the ACOSOG Z0011 and IBCSG 23-10 trials. AB - BACKGROUND: Intraoperative frozen sections (FS) of sentinel lymph nodes (SLN) were evaluated to avoid the need for deferred axillary lymph node dissection (ALND) in patients with early breast cancer (EBC). However, FS has low sensitivity for detecting micro-metastases (<2 mm), resulting in patients who later undergo deferred ALND. The aim of the study was to determine the best clinical approach for selecting patients who would derive real benefit from ALND, as well as to minimize the functional and psychological damage caused by delayed surgery, and the risk of undertreating EBC patients. METHODS: This study evaluated 1453 patients with early breast cancer (EBC) who underwent SLN biopsy, FS and definitive evaluation. Causes of discrepancies between SLN biopsy and FS results and the need for further surgery were evaluated. RESULTS: A total of 1226 (86%) patients underwent FS; of these patients, 146 (11.9%) were false negatives. The global sensitivity of FS in detecting both macro and micrometastases was 53.7%. Although ACOSOG Z0011 criteria found that ALND could be avoided in 236 patients, 40 (17%) of these had >3 positive axillary lymph nodes. In contrast, application of the IBCSG 23-10 trial criteria, found that only three patients (3.1%) had >3 positive axillary lymph nodes. CONCLUSIONS: FS has a low sensitivity in detecting micrometastases (19%), but a reasonable sensitivity for macrometastases (75%). Most false negatives were smaller metastases (mean 2.1 mm) and more likely in patients with infiltrating lobular carcinoma. Retrospective modelling of the IBCSG 23-10 criteria reduced the percentage of patients requiring deferred surgery from 12% to 4%. Guidelines recommend irradiation of lymph node drainage stations in patients with >=4 axillary metastatic lymph nodes. Omission of ALND from 40% of patients who met Z0011 criteria would have resulted in their undertreatment. This risk decreases to 3% by omitting axillary clearing only in patients with micrometastases. PMID- 29329753 TI - Does social context matter? An ecological momentary assessment study of marijuana use among college students. AB - INTRODUCTION: Past research has shown that marijuana use occurs commonly in social situations for young adults, though few studies have examined the association between immediate social context and marijuana use patterns and associated problems. The current study examined the impact of demographics, marijuana use and problem use, alcohol use, craving, and social context on the likelihood of using marijuana with others via ecological momentary assessment (EMA). METHODS: College-student marijuana users (N=56) were recruited and completed a baseline assessment and training on the two-week signal-contingent EMA protocol. Participants were sent text messages three times per day randomly for two weeks. RESULTS: Of the 1131 EMA instances during which participants reported using marijuana, 862 (76.22%) were labeled as being with others. Forty five participants (80.36%) reported marijuana use with others present during at least half of the times they used marijuana. Findings from a multilevel logistic regression model showed a significant positive association between the probability of using with others and minutes spent using marijuana (b=0.047, p<0.001), social facilitation (b=0.138, p<0.001), and DSM-IV diagnosis (dependence versus no diagnosis, b=1.350, p=0.047). CONCLUSIONS: Cannabis dependence, more time using marijuana in the moment, and using for social facilitation purposes were positively associated with using marijuana in the context of being with others. Daily users had more variability in terms of the social context of their use. This study illustrates the complex relationship between social context and marijuana use. PMID- 29329754 TI - Comparison of Cepheid(r) Xpert Flu and Roche RealTime Ready Influenza A/H1N1 Detection Set for detection of influenza A/H1N1. AB - OBJECTIVE: To compare two influenza polymerase chain reaction (PCR) methods. METHODS: A total of 749 suspected MERS-CoV patients presenting at Johns Hopkins Aramco Healthcare, Saudi Arabia, each submitted a clinical sample for influenza A reflex testing using the on-site Cepheid(r) Xpert Flu assay and at the Ministry of Health laboratory by the Roche PCR assay. RESULTS: There was 92.12% overall agreement between the two methods. Specificity of the Cepheid(r) Xpert Flu was 95.8% for H1N1 and 94.4% for total influenza A. Cepheid(r) Xpert Flu sensitivity for influenza A was 100% for younger patients (0-19-year age group) but significantly lower both for older patients (68.2% for 60-79-year and 50% for >=80-year age groups) and overall for males compared to females (72.6% and 94.0%, respectively). CONCLUSIONS: Specificity of the Cepheid(r) Xpert Flu test was high; however, sensitivity for total influenza A was lower particularly in males and older patients. PMID- 29329755 TI - Detection of "Xisco" gene for identification of Streptococcus pneumoniae isolates. AB - We describe a PCR-assay differentiating Streptococcus pneumoniae from closely related species of the Mitis group of the genus Streptococcus and identification of pneumococcus clinical isolates, based on the "Xisco" gene discriminatory marker. The complete "Xisco" gene sequence was observed in all S. pneumoniae genomes analyzed and absent in all non-pneumococcus genomes. PMID- 29329756 TI - Phospholipid composition of the outer membrane of Escherichia coli influences its susceptibility against antimicrobial peptide apidaecin 1b. AB - Proline-rich antimicrobial peptides (PrAMPs) kill bacteria in a multimodal mechanism by inhibiting the 70S ribosome (i.e., protein translation) as dominant lethal mechanism besides inhibition of several other proteins, such as chaperone DnaK. PrAMPs pass the outer membrane of Gram-negative bacteria, probably by a self-promoted uptake followed by a transporter-mediated uptake from the periplasm. Mutation of transporter protein SbmA is a well-studied resistance mechanism observed in vitro by resistance induction with PrAMPs. Here, we compared the membrane compositions of Escherichia coli BL21AI and BL21AI Apir, which was obtained by resistance induction with PrAMP apidaecin 1b. Lipid A was partially modified by phosphatidylethanolamine, 4-aminoarabinose, or both groups, but the relative contents of these and further unidentified species did not differ much between wild-type and resistant strains, indicating that resistance was not related to lipid A modifications. The same was true for 20 glycerophospholipids identified, i.e., 11 phosphatidylethanolamines and 9 phosphatidylglycerols. However, glycerophospholipids in BL21AI Apir contained much lower levels of cyclopropane-modified acyl groups, which probably alter the biophysical properties of the inner membrane and the inner leaflet of the outer membrane. Indeed, when cyclopropane-fatty-acyl-phospholipid synthase was knocked out in E. coli BW25113, the resulting BW25113 Deltacfa was less susceptible against apidaecin 1b. PMID- 29329758 TI - Real-time RT-PCR, a necessary tool to support the diagnosis and surveillance of rotavirus in Mexico. AB - Rotavirus produces diarrhea in children under 5 years old. Most of those conventional methods such as polyacrylamide gel electrophoresis (PAGE) and reverse transcription-polymerase chain reaction (RT-PCR) have been used for rotavirus detection. However, these techniques need a multi-step process to get the results. In comparison with conventional methods, the real-time RT-PCR is a highly sensitive method, which allows getting the results in only one day. In this study a real-time RT-PCR assay was tested using a panel of 440 samples from patients with acute gastroenteritis, and characterized by PAGE and RT-PCR. The results show that the real-time RT-PCR detected rotavirus from 73% of rotavirus negative samples analyzed by PAGE and RT-PCR; thus, the percentage of rotavirus positive samples increased to 81%. The results indicate that this real-time RT PCR should be part of a routine analysis, and as a support of the diagnosis of rotavirus in Mexico. PMID- 29329759 TI - Treatment outcomes of macrolide-susceptible Mycobacterium abscessus lung disease. AB - Mycobacterium abscessus lung disease is difficult to treat due to inducible resistance to macrolides. However, 15%-20% of isolates are macrolide susceptible. In 14 patients with macrolide-susceptible M. abscessus lung disease, all isolates had nonfunctional erm(41) gene, and sputum culture conversion rate was achieved in 93% (13/14) following antibiotic therapy. PMID- 29329757 TI - Challenges of Francisella classification exemplified by an atypical clinical isolate. AB - The accumulation of sequenced Francisella strains has made it increasingly apparent that the 16S rRNA gene alone is not enough to stratify the Francisella genus into precise and clinically useful classifications. Continued whole-genome sequencing of isolates will provide a larger base of knowledge for targeted approaches with broad applicability. Additionally, examination of genomic information on a case-by-case basis will help resolve outstanding questions regarding strain stratification. We report the complete genome sequence of a clinical isolate, designated here as F. novicida-like strain TCH2015, acquired from the lymph node of a 6-year-old male. Two features were atypical for F. novicida: exhibition of functional oxidase activity and additional gene content, including proposed virulence determinants. These differences, which could potentially impact virulence and clinical diagnosis, emphasize the need for more comprehensive methods to profile Francisella isolates. This study highlights the value of whole-genome sequencing, which will lead to a more robust database of environmental and clinical genomes and inform strategies to improve detection and classification of Francisella strains. PMID- 29329760 TI - Sodium-glucose transporter as a novel therapeutic target in disease. AB - Glucose is the primary energy fuel of life. A glucose transporter, the sodium glucose transporter (SGLT), is receiving attention as a novel therapeutic target in disease. This review summarizes the physiological role of SGLT in cerebral ischemia, cancer, cardiac disease, and intestinal ischemia, which has encouraged analysis of SGLT function. In cerebral ischemia and cardiomyopathy, SGLT-1 is involved in worsening of the injury. In addition, SGLT-1 promotes the development of cancer. On the other hand, SGLT-1 has a protective effect against cardiac and intestinal ischemia. Interestingly, SGLT-1 expression levels are increased in some diseased tissue, such as in cerebral ischemia and cancer. This suggests that SGLT-1 may have an important role in many diseases. This review discusses the potential of SGLT as a target for novel therapeutic agents. PMID- 29329761 TI - N-terminal pro-B-type natriuretic peptide for monitoring after balloon pulmonary angioplasty for chronic thromboembolic pulmonary hypertension. AB - BACKGROUND: Balloon pulmonary angioplasty (BPA) is an emerging interventional treatment option for chronic thromboembolic pulmonary hypertension (CTEPH). The non-invasive monitoring of CTEPH patients is a clinical challenge. In this study we examined changes in N-terminal pro-B-type natriuretic peptide (NT-proBNP) in patients undergoing BPA for inoperable CTEPH and related them to peri-procedural success. METHODS: In this study we analyzed a total of 51 consecutive patients who underwent BPA treatment and completed a 6-month follow-up (6-MFU) between March 2014 and March 2017. Serum samples for NT-proBNP measurement were collected before every BPA and at 6-MFU. RESULTS: The 51 patients underwent 265 interventions involving angioplasty of a total of 410 vessels. The 6-month survival rate was 96.1%. The baseline (BL) mean pulmonary artery pressure (PAP) was 39.5 +/- 12.1 mm Hg, pulmonary vascular resistance (PVR) was 515.8 +/- 219.2 dynes/s/cm5 and the median NT-proBNP level was 820 (153 to 1,871.5) ng/liter. At BL, World Health Organization functional class (FC) was >=III in 96.1% of the patients, whereas, at 6-MFU, 11.8% were in WHO FC >=III. At 6-MFU, mean PAP (32.6 +/- 12.6 mm Hg; p < 0.001), PVR (396.9 +/- 182.6 dynes/s/cm5; p < 0.001) and NT proBNP (159.3 [84.4 to 464.3] ng/liter; p < 0.001) levels were reduced. The decrease in NT-proBNP levels correlated with the decrease in mean PAP (rrs = 0.43, p = 0.002) and PVR (rrs = 0.50, p = 0.001). A reduction in the NT-proBNP level of 46% indicated a decrease in mean PAP of >=25% (area under the curve [AUC] = 0.71) and a reduction of 61% indicated a decrease in PVR of >=35% (AUC 0.77). CONCLUSIONS: Our results demonstrate that NT-proBNP levels decrease after BPA, providing valuable evidence of procedural success. NT-proBNP measurement allows identification of patients who are BPA non-responders and may thus be a valuable adjunct in therapy monitoring. PMID- 29329762 TI - Smoking and HIV: confronting the epidemic. PMID- 29329764 TI - [Analysis of mortality and hospital stay in cardiac surgery in Mexico 2015: Data from the National Cardiology Institute]. AB - OBJECTIVE: To analyse hospital mortality in patients subjected to cardiac surgery in Mexico during the year 2015, and identify the mortality risks factors, and its correlation with days of hospital stay in the cardiovascular intensive care unit. METHOD: The database of Cardiovascular Intensive Care of the National Institute of Cardiology was examined for this cases and controls study that included only adult patients subjected to cardiac surgery during the year 2015. RESULTS: A total of 571 patients were subjected to a surgical procedure. The predominant indication was single or multiple valve replacement surgery, followed by coronary revascularisation surgery, and correction of adult congenital heart disease. Overall mortality was 9.2, and 8% died in intensive care. The main risk factors for death were preoperative organ failure or pulmonary hypertension, and prolonged time with extracorporeal circulation. The primary cause of death was secondary to cardiogenic shock. The hospital mortality observed in this population was higher for patients undergoing pulmonary thromboendarterectomy, complex aortic disease surgery, and valvular surgery. CONCLUSIONS: The mortality of patients undergoing cardiac surgery in Mexico differs slightly from that reported in the world literature, primarily because there were more multivalvular surgeries and mixed complex procedures performed. PMID- 29329765 TI - Usefulness of the Trabecular Bone Score for assessing the risk of osteoporotic fracture. AB - INTRODUCTION AND OBJECTIVES: The trabecular bone score (TBS) is an imaging technique that assesses the condition of the trabecular microarchitecture. Preliminary results suggest that TBS, along with the bone mineral density assessment, could improve the calculation of the osteoporotic fracture risk. The aim of this study was to analyse TBS values and their relationship with the clinical characteristics, bone mineral density and history of fractures of a cohort of posmenopausal women. MATERIAL AND METHODS: We analysed 2,257 posmenopausal women from the FRODOS cohort, which was created to determine the risk factors for osteoporotic fracture through a clinical survey and bone densitometry with vertebral morphometry. TBS was applied to the densitometry images. TBS values <=1230 were considered indicative of degraded microarchitecture. We performed a simple and multiple linear regression to determine the factors associated with this index. RESULTS: The mean TBS value in L1-L4 was 1.203+/-0.121. Some 55.3% of the women showed values indicating degraded microarchitecture. In the multiple linear regression analysis, the factors associated with low TBS values were age, weight, height, spinal T-score, glucocorticoid treatment, presence of type 2 diabetes and a history of fractures due to frailty. CONCLUSIONS: TBS showed microarchitecture degradation values in the participants of the FRODOS cohort and was associated with anthropometric factors, low bone mineral density values, the presence of fractures, a history of type 2 diabetes mellitus and the use of glucocorticoids. PMID- 29329766 TI - 77-year-old woman with pulse abnormalities. PMID- 29329763 TI - Efficacy and safety of varenicline for smoking cessation in people living with HIV in France (ANRS 144 Inter-ACTIV): a randomised controlled phase 3 clinical trial. AB - BACKGROUND: Tobacco smoking is common in people living with HIV, but high-quality evidence on interventions for smoking cessation is not available in this population. We aimed to assess the efficacy and safety of varenicline with counselling to aid smoking cessation in people living with HIV. METHODS: The ANRS 144 Inter-ACTIV randomised, parallel, double-blind, multicentre, placebo controlled phase 3 trial was done at 30 clinical hospital sites in France. People living with HIV who had smoked at least ten cigarettes per day for 1 year or longer, were motivated to stop smoking, were not dependent on another psychoactive substance, and had no history of depression or suicide attempt were eligible. Using a computer-generated randomisation sequence, we allocated (1:1) the patients to receive either varenicline titrated to two 0.5 mg doses twice daily or placebo twice daily for 12 weeks, plus face-to-face counselling. Patients and investigators were masked to treatment group allocation. Patients who were not abstinent at week 24 were offered open-label varenicline for 12 additional weeks. The primary outcome was the proportion of smokers continuously abstinent from week 9 to week 48. Smoking status was confirmed by carbon monoxide in exhaled air. Primary analyses were done in both the intention-to-treat (ITT) population and modified ITT (mITT) population, which comprised all patients who took at least one tablet of their assigned study treatment. The safety analyses were done in the mITT population. The trial is registered at ClinicalTrials.gov, number NCT00918307. The trial status is complete. FINDINGS: From Oct 26, 2009, to Dec 20, 2012, of 303 patients assessed for eligibility, 248 patients were randomly assigned to the varenicline group (n=123) or the placebo group (n=125). After randomisation, one participant initially assigned to the placebo group was excluded from the ITT analysis for a regulatory reason (no French health-care coverage). 102 patients in the varenicline group and 111 patients in the placebo group received at least one dose of their assigned treatment and were included in the mITT analysis. In the ITT analysis, varenicline was associated with a higher proportion of patients achieving continuous abstinence over the study period (week 9-48): 18 (15%, 95% CI 8-21) of 123 in the varenicline group versus eight (6%, 2-11) of 124 in the placebo group, adjusted odds ratio (OR) 2.5 (95% CI 1.0 6.1; p=0.041). In the mITT analysis, varenicline was also associated with higher continuous abstinence: 18 (18%, 95% CI 10-25) of 102 versus eight (7%, 2-12) of 111 in the placebo group (adjusted OR 2.7, 95% CI 1.1-6.5; p=0.029). The incidence of depression was 2.4 per 100 person-years (95% CI 0.6-9.5; two [2%] of 102) in the varenicline group and 12.4 per 100 person-years (95% CI 6.9-22.5; 11 [10%] of 111) in the placebo group. 14 (7%) of 213 participants had 18 cardiovascular events: six (6%) of 102 people in the varenicline group and eight (7%) of 111 people in the placebo group. INTERPRETATION: Varenicline is safe and efficacious for smoking cessation in people living with HIV and should be recommended as the standard of care. FUNDING: The French National Institute for Health and Medical Research (INSERM)-French National Agency for Research on AIDS and Viral Hepatitis (ANRS) and Pfizer. PMID- 29329767 TI - Discussion. PMID- 29329768 TI - Management of pediatric ovarian torsion: evidence of follicular development after ovarian preservation. AB - PURPOSE: This study reviews contemporary management and follow-up of pediatric ovarian torsion. METHODS: This is a retrospective series of patients from birth to 19 years undergoing operative management of ovarian torsion from 2012 to 2016. RESULTS: We studied 43 girls who underwent 51 operations for ovarian torsion. The median age was 8.3 years. Ultrasound was utilized for diagnosis in 24/29 patients (83%) evaluated in a children's hospital. In contrast, computed tomography was used initially in 7 cases (50%) in children imaged at non-children's hospitals before transfer. Initial operation for ovarian torsion was completed laparoscopically in 38 (88%). Overall, ovarian preservation was performed in 37 (86%) patients, while 6 (13%) underwent oophorectomy. Indications for oophorectomy included 5 infants with in utero torsion and an 18-year-old with a suspected malignancy. In girls with acute ovarian torsion, the oophorectomy rate was reduced to 2%. Postoperatively, 1 patient developed a small bowel obstruction requiring operation after laparoscopic ovarian detorsion. Recurrent torsion occurred in 3 patients (7%). In total, 34 patients underwent postoperative ovarian imaging. A total of 25 (74%) had follicles visualized in the previously torsed ovary. CONCLUSION: Ovarian-sparing operations for acute torsion are safe and result in ovarian salvage and preservation of follicular development in more than 70% of children and adolescents. PMID- 29329769 TI - Erratum to "Absorption, liver first-pass effect, pharmacokinetics and tissue distribution of calycosin-7-O-beta-d-glucopyranoside (C7G) and its major active metabolite, calycosin, following oral administration of C7G in rats by LC-MS/MS" [J. Pharm. Biomed. Anal. 148 (2018) 350-354]. PMID- 29329770 TI - Yield of family screening in patients with isolated bicuspid aortic valve in a general hospital. AB - AIM: To determine the prevalence of unidentified bicuspid aortic valve (BAV) or aortic dilatation (>40mm) in first degree relatives (FDR) of patients with isolated BAV in a general hospital. METHODS AND RESULTS: Patients with isolated BAV received information advising cardiac screening of their FDR. Referred and screened were 134 FDR of 54 adult index patients with isolated BAV (median 2 per index patient). FDR's mean age was 49years (range 16-83years) and 41% were male. They comprised 5 parents (3.7%), 52 siblings (39%) and 77 offspring (57%). Among these FDR, the prevalence of BAV was 6.0% (8 patients). In FDR without BAV, 10 (7.5%) had aortic dilatation. 'Familial BAV' was present in 9/54 families (17%). CONCLUSION: In a general hospital, screening of FDR of patients with isolated BAV resulted in a substantial yield of 13% new cases with BAV or aortic dilatation without BAV. PMID- 29329771 TI - Low rate of revascularization procedures and poor prognosis particularly in male patients with peripheral artery disease - A propensity score matched analysis. AB - BACKGROUND: Few data discuss the impact of sex on diagnostic and therapeutic procedures and outcome of patients with peripheral artery disease (PAD). METHODS: We obtained data on 41,873 PAD patients between 2009 and 2011 (including a 4-year follow-up) from the largest German public health insurance (BARMER GEK). Propensity Score Matching (PSM) was performed to evaluate the impact of sex on treatment, complications, in-hospital and long-term outcome. RESULTS: Of 41,873 PAD patients, there were 23,282 (55.6%) male and 18,591 (44.4%) female. Male patients were younger (69+/-11years vs. 75+/-12years in females; p<0.001) but had higher obesity (8.0% vs 6.5%), dyslipidemia (33.2% vs 28.1%), smoking (12.9% vs 9.2%), coronary artery disease (29.4% vs 19.5%), or diabetes rates (35.8% vs 28.1%; each p<0.001). Almost three in five revascularizations applied to minor clinical stages, revascularization rate in critical limb ischemia (CLI) was 49% at in-hospital and 58.8% inc. follow-up in both sexes (Rutherford 6). PSM accounting for risk factors and PAD stages showed lower use of endovascular and higher use of surgical revascularization in males compared to females. Male sex was associated with higher in-hospital amputation and was an independent risk factor during follow-up for both amputation (HR 1.284; p<0.001) and death (HR 1.155; p<0.001). CONCLUSIONS: Data show low rates of revascularization procedures particularly at advanced PAD stages (CLI). Male sex is associated with higher use of surgical, but lower use of endovascular and overall procedures, and higher amputation and mortality during follow-up. PMID- 29329772 TI - Robust decentralized controller for minimizing coupling effect in single inductor multiple output DC-DC converter operating in continuous conduction mode. AB - This paper describes a novel robust decentralized control design methodology for a single inductor multiple output (SIMO) DC-DC converter. Based on a nominal multiple input multiple output (MIMO) plant model and performance requirements, a pairing input-output analysis is performed to select the suitable input to control each output aiming to attenuate the loop coupling. Thus, the plant uncertainty limits are selected and expressed in interval form with parameter values of the plant model. A single inductor dual output (SIDO) DC-DC buck converter board is developed for experimental tests. The experimental results show that the proposed methodology can maintain a desirable performance even in the presence of parametric uncertainties. Furthermore, the performance indexes calculated from experimental data show that the proposed methodology outperforms classical MIMO control techniques. PMID- 29329774 TI - Enzymatic saccharification of lignocellulosic biorefinery: Research focuses. AB - To realize lignocellulosic biorefinery is of global interest, with enzymatic saccharification presenting an essential stage to convert polymeric sugars to mono-sugars for fermentation use. This mini-review summarizes qualitatively the research focuses discussed the review articles presented in the past 22 months and other relevant papers. The research focuses on pretreatment with improved efficiency, enhanced enzyme production with high yields and high extreme tolerance, feasible combined saccharification and fermentation processes, detailed mechanisms corresponding to the enzymatic saccharification in lignocellulosic biorefinery, and the costs are discussed. PMID- 29329773 TI - Total energy expenditure and body composition of children with developmental disabilities. AB - BACKGROUND: Obesity prevalence is increased in children with developmental disabilities, specifically in children with spina bifida and Down syndrome. Energy expenditure, a critical aspect of weight management, has been extensively studied in the typically developing population, but not adequately studied in children with developmental disabilities. OBJECTIVE: Determine energy expenditure, fat-free mass and body fat percentile and the impact of these findings on recommended caloric intake in children with spina bifida and Down syndrome. METHODS/MEASURES: This pilot study included 36 children, 18 with spina bifida, 9 with Down syndrome and 9 typically developing children. Half of the children with spina bifida were non-ambulatory. Doubly labeled water was used to measure energy expenditure and body composition. Descriptive statistics described the sample and MANOVA and ANOVA methods were used to evaluate differences between groups. RESULTS: Energy expenditure was significantly less for children with spina bifida who primarily used a wheelchair (p = .001) and children with Down syndrome (p = .041) when compared to children without a disability when adjusted for fat-free mass. However, no significant difference was detected in children with spina bifida who ambulated without assistance (p = .072). CONCLUSIONS: Children with spina bifida and Down syndrome have a significantly decreased energy expenditure which directly impacts recommended caloric intake. No significant difference was detected for children with spina bifida who ambulated, although the small sample size of this pilot study may have limited these findings. Validating these results in a larger study is integral to supporting successful weight management of these children. PMID- 29329775 TI - Recent advances and strategies in process and strain engineering for the production of butyric acid by microbial fermentation. AB - Butyric acid is an important platform chemical, which is widely used in the fields of food, pharmaceutical, energy, etc. Microbial fermentation as an alternative approach for butyric acid production is attracting great attention as it is an environmentally friendly bioprocessing. However, traditional fermentative butyric acid production is still not economically competitive compared to chemical synthesis route, due to the low titer, low productivity, and high production cost. Therefore, reduction of butyric acid production cost by utilization of alternative inexpensive feedstock, and improvement of butyric acid production and productivity has become an important target. Recently, several advanced strategies have been developed for enhanced butyric acid production, including bioprocess techniques and metabolic engineering methods. This review provides an overview of advances and strategies in process and strain engineering for butyric acid production by microbial fermentation. Additionally, future perspectives on improvement of butyric acid production are also proposed. PMID- 29329776 TI - Sequential dark and photo fermentation hydrogen production from hydrolyzed corn stover: A pilot test using 11 m3 reactor. AB - Pilot tests of sequential dark and photo fermentation H2 production were for the first time conducted in a 11 m3 reactor (3 m3 for dark and 8 m3 for photo compartments). A combined solar and light-emitting diode illumination system and a thermal controlling system was installed and tested. With dark fermentation unit maintained at pH 4.5 and 35 degrees C and photo fermentation unit at pH 7.0 and 30 degrees C, the overall biogas production rate using hydrolyzed corn stover as substrate reached 87.8 +/- 3.8 m3/d with 68% H2 content, contributed by dark unit at 7.5 m3-H2/m3-d and by photo unit at 4.7 m3/m3-d. Large variation was noted for H2 production rate in different compartments of the tested units, revealing the adverse effects of poor mixing, washout, and other inhomogeneity associated with large reactor operations. PMID- 29329777 TI - Dietary intake by food group of individuals with type 2 diabetes mellitus: A systematic review. AB - AIMS: To synthesize peer-reviewed literature that investigates the dietary intake by food group of individuals with type 2 diabetes mellitus (T2DM) and compare intakes to national and international dietary guidelines. METHODS: Four electronic databases (MEDLINE, EMBASE, CINAHL and Web of Sciences) were searched for studies that investigated the dietary intake of adults (>=18 years) with T2DM using the five main food groups (fruit, vegetables, dairy, grains and meat/meat alternatives). Food group intake in serves was compared against national guidelines and fruit and vegetable intake in grams was compared against the World Health Organization (WHO) guidelines. RESULTS: After screening 13,662 publications, 11 studies were included. All reported cross-sectional data. Majority of participants were consuming less than the recommended serves of fruit, vegetables, grains and dairy and were meeting or exceeding the recommended serves for meat/meat alternatives. Two of six studies reported fruit and vegetable recommendations were being met, two reported dairy recommendations were being met and two reported grain recommendations were being met. Of the five studies reporting intake in grams, four met the WHO minimum intake for fruit and vegetables. CONCLUSIONS: Individuals with T2DM do not comply with food group recommendations; particularly for fruit, vegetables, dairy and grains. Longitudinal research is required to better understand how food group intake changes over time after diagnosis. PMID- 29329778 TI - High-intensity interval training versus continuous training on physiological and metabolic variables in prediabetes and type 2 diabetes: A meta-analysis. AB - AIMS: To compare the effects of high-intensity interval training (HIIT) versus moderate-intensity continuous training (MICT) on functional capacity and cardiometabolic markers in individuals prediabetes and type 2 diabetes (T2D). METHODS: The search was performed in PubMed (MEDLINE), EMBASE, PEDro, CENTRAL, Scopus, LILACS database, and Clinical Trials from the inception to July 2017, included randomized clinical trials that compared the use of HIIT and MICT in prediabetes and T2D adults. The risk of bias was defined by Cochrane Handbook and quality of evidence by GRADE. RESULTS: From 818 relevant records, seven studies were included in systematic review (64 prediabetes and 120 T2D patients) and five with T2D were meta-analyzed. HIIT promoted significantly increased of 3.02 mL/kg/min (CI95% 1.42-4.61) of VO2max, measured for functional capacity, compared to MICT. No differences were found between two modalities of exercises considering the outcomes HbA1c, systolic and diastolic blood pressure, total cholesterol, HDL and LDL cholesterol, triglycerides, BMI, and waist-to-hip ratio. Most of the studies presented unclear risk of bias, and low and very low quality of evidence. CONCLUSION: HIIT induces cardiometabolic adaptations similar to those of MICT in prediabetes and T2D, and provides greater benefits to functional capacity in patients with T2D. PROSPERO: CRD42016047151. PMID- 29329779 TI - Receptor- and cellular compartment-specific activation of the cAMP/PKA pathway by alpha1-adrenergic and ETA endothelin receptors. AB - The signalling functions of many G protein-coupled receptors (GPCRs) expressed in the myocardium are incompletely understood. Among these are the endothelin receptor (ETR) family and alpha1-adrenergic receptor (alpha1-AR), which are thought to couple to the G protein Galphaq. In this study, we used transcriptome analysis to compare the signalling networks downstream of these receptors in primary neonatal rat cardiomyocytes. This analysis indicated increased expression of target genes of cAMP responsive element modulator (CREM) after 24 h treatment with the alpha1-AR agonist phenylephrine, but not the ETR agonist endothelin-1, suggesting a specific role for the alpha1-AR in promoting cAMP production in cardiomyocytes. To validate the difference observed between these two GPCRs, we used heterologous expression of the receptors and genetically encoded biosensors in HEK 293 cell lines. We validated that both alpha1A- and alpha1B-AR subtypes were able to lead to the accumulation of cAMP in response to phenylephrine in both the nucleus and cytoplasm in a Galphas-dependent manner. However, the ETR subtype ETA did not affect cAMP levels in either compartment. All three receptors were coupled to Galphaq signalling as expected. Further, we showed that activation of PKA in different compartments was alpha1-AR subtype specific, with alpha1B-AR able to activate PKA in the cytoplasm and nucleus and alpha1A-AR only able to in the nucleus. We provide evidence for a pathway downstream of the alpha1-AR, and show that distinct pools of a receptor lead to differential activation of downstream effector proteins dependent on their cellular compartment. PMID- 29329780 TI - Oncogenic RAC1 and NRAS drive resistance to endoplasmic reticulum stress through MEK/ERK signalling. AB - Cancer cells are able to survive under conditions that cause endoplasmic reticulum stress (ER-stress), and can adapt to this stress by upregulating cell survival signalling pathways and down-regulating apoptotic pathways. The cellular response to ER-stress is controlled by the unfolded protein response (UPR). Small Rho family GTPases are linked to many cell responses including cell growth and apoptosis. In this study, we investigate the function of small GTPases in cell survival under ER-stress. Using siRNA screening we identify that RAC1 promotes cell survival under ER-stress in cells with an oncogenic N92I RAC1 mutation. We uncover a novel connection between the UPR and N92I RAC1, whereby RAC1 attenuates phosphorylation of EIF2S1 under ER-stress and drives over-expression of ATF4 in basal conditions. Interestingly, the UPR connection does not drive resistance to ER-stress, as knockdown of ATF4 did not affect this. We further investigate cancer-associated kinase signalling pathways and show that RAC1 knockdown reduces the activity of AKT and ERK, and using a panel of clinically important kinase inhibitors, we uncover a role for MEK/ERK, but not AKT, in cell viability under ER-stress. A known major activator of ERK phosphorylation in cancer is oncogenic NRAS and we show that knockdown of NRAS in cells, which bear a Q61 NRAS mutation, sensitises to ER-stress. These findings highlight a novel mechanism for resistance to ER-stress through oncogenic activation of MEK/ERK signalling by small GTPases. PMID- 29329781 TI - Dopamine transporter trafficking is regulated by neutral sphingomyelinase 2/ceramide kinase. AB - Dopamine (DA) reuptake is the primary mechanism to terminate dopaminergic transmission in the synaptic cleft. The dopamine transporter (DAT) has an important role in the regulation of DA reuptake. This study provides anatomical and physiological evidence that DAT recycling is regulated by ceramide kinase via the sphingomyelin pathway. First, the results show that DAT and neutral sphingomyelinase 2 (nSMase2) were successfully co-precipitated from striatal samples and were colocalized in the mouse striatum or PC12 cells. We also identified a protein-protein interaction between nSMase2 and DAT through in situ proximity ligation assay experiments in the mouse striatum. Second, dopamine (DA) stimulated the formation of ceramide and increased nSMase activity in PC12 cells, while treatment with a cell-permeable ceramide-1-phosphate (C1P) increased DA uptake. Third, we used inhibitors and siRNA to inhibit nSMase2 and ceramide kinase and observed the effects on DAT recycling in PC12 cells. Treatment with ceramide kinase inhibitor K1, or nSMase inhibitor GW4869, decreased DA uptake in PC12 cells, although the application of FB1, a ceramide synthase inhibitor, did not affect DA uptake. Transfection of nSMase2 and CERK siRNA decreased DAT surface level in PC12 cells. These results suggested that SM-derived C1P affects cell surface levels of DAT. PMID- 29329782 TI - LPA-induced migration of ovarian cancer cells requires activation of ERM proteins via LPA1 and LPA2. AB - Lysophosphatidic acid (LPA) has been implicated in the pathology of human ovarian cancer. This phospholipid elicits a wide range of cancer cell responses, such as proliferation, trans-differentiation, migration, and invasion, via various G protein-coupled LPA receptors (LPARs). Here, we explored the cellular signaling pathway via which LPA induces migration of ovarian cancer cells. LPA induced robust phosphorylation of ezrin/radixin/moesin (ERM) proteins, which are membrane cytoskeleton linkers, in the ovarian cancer cell line OVCAR-3. Among the LPAR subtypes expressed in these cells, LPA1 and LPA2, but not LPA3, induced phosphorylation of ERM proteins at their C-termini. This phosphorylation was dependent on the Galpha12/13/RhoA pathway, but not on the Galphaq/Ca2+/PKC or Galphas/adenylate cyclase/PKA pathway. The activated ERM proteins mediated cytoskeletal reorganization and formation of membrane protrusions in OVCAR-3 cells. Importantly, LPA-induced migration of OVCAR-3 cells was completely abolished not only by gene silencing of LPA1 or LPA2, but also by overexpression of a dominant negative ezrin mutant (ezrin-T567A). Taken together, this study demonstrates that the LPA1/LPA2/ERM pathway mediates LPA-induced migration of ovarian cancer cells. These findings may provide a potential therapeutic target to prevent metastatic progression of ovarian cancer. PMID- 29329783 TI - Comparative genome based cis-elements analysis in the 5' upstream and 3' downstream region of cell wall invertase and Phenylalanine ammonia lyase in Nicotiana benthamiana. AB - Plant secondary metabolites are widely used in human disease treatment; though primary metabolism provides precursors for secondary metabolism, not much has been studied to unravel the link connecting both the processes. Most common form of gene regulation interconnecting diverse metabolism occurs at the transcriptional and/or posttranscriptional level mediated by regulatory cis elements. The present study aims at understanding the common cis-elements network connecting the major primary metabolic enzyme, cell wall invertase (CWIN) and secondary metabolism genes in Nicotiana benthamiana (N. benthamiana). The CWIN and thirty one other gene sequences were extracted from N. benthamiana genome, followed by cis-element analysis of their 5' upstream and 3' downstream region using different programs (Genomatix software suite; PLACE and PlantCARe). Comparative cis-element analysis of CWIN (N. benthamiana and other plant species) and other primary, secondary metabolism and transcription factor genes (N. benthamiana) revealed the occurrence of common stress associated cis-elements. Predominantly, AHBP, L1BX, MYBL, MADS, MYBS, GTBX, DOFF and CCAF were found in the 5' upstream region of all genes, whereas AHBP, MYBL, L1BX, HEAT, CCAF and KAN1 were largely occurring in the 3' downstream region of all genes; indicating common function of these elements in transcriptional and posttranscriptional gene regulation. Further, genomic analysis using FGENESH, GenScan and homology based methods (BlastX and BlastN) was performed on the N. benthamiana contigs harboring CWIN and PAL, in an attempt to identify genomic neighborhood genes. The 5' upstream and 3' downstream region of genes in the genomic neighborhood of CWIN and PAL were also subjected to similar cis-element analysis, and the results indicated cis-elements profile similar to CWIN, PAL and other primary, secondary metabolism and transcription factor genes. The results of evolutionary studies confirmed that the 5' upstream region of NbCWINs significantly showed more proximity to secondary metabolism genes 4CL and the redox gene SOD, followed by the phenylpropanoid pathway gene CHI. The 3' downstream regions of NbCWINs were more closely related to other plant CWINs, followed by the redox gene, SOD and primary metabolism gene FBA. Thus, the commonly found stress responsive cis elements in our study can play a vital role in modulating key pathways of both primary and secondary metabolism; thereby postulating their role in regulating plant growth and metabolisms under unfavourable growth conditions. PMID- 29329784 TI - Regulatory Science - An Underappreciated Component of Translational Research. AB - Translational science refers to translating basic scientific findings to practical application (i.e., 'bench-to-bedside'). An underappreciated aspect of translational science is regulatory science. Herein, we focus on the importance of regulatory science to facilitate development of innovative new drugs and optimize use of approved drugs, with a call for community participation. PMID- 29329785 TI - A relapsing fever group Borrelia sp. is widely distributed among wild deer in Japan. AB - A relapsing fever group Borrelia sp. was detected from the blood of wild deer (Cervus nippon) in Japan. The Borrelia sp. was distributed nationwide among deer with an overall prevalence of 26% in blood samples. The prevalence of infection was significantly higher in fawns (48.4%) compared to adult deer (23.6%). Sequencing analysis reveals that this Borrelia sp. belongs to the hard tick-borne relapsing fever borreliae, and that it forms a single lineage based on sequences of the flagellin and glycerophosphodiester phosphodiesterase genes. Borrelial genome copy number was estimated at 8.8 * 103 genome copies/MUl of blood. Other hard tick-borne relapsing fever borrelia (e.g. Borrelia miyamotoi) were not detected in deer blood in this study. These findings suggest that wild deer may act as reservoirs for this Borrelia sp. in Japan. PMID- 29329786 TI - Clinicopathological and prognostic significance of lymphocyte to monocyte ratio in patients with gastric cancer: A meta-analysis. AB - BACKGROUND: Recently, the lymphocyte-to-monocyte ratio (LMR) has been reported to be a prognostic factor in multiple malignancies. The current study was designed to assess the prognostic value of pretreatment LMR in gastric cancer (GC). METHODS: MEDLINE, EMBASE, Cochrane, and CNKI databases were searched until April 2017. Eligible articles were defined as studies assessing the prognostic role of pretreatment LMR in GC. Pooled hazard ratios (HRs) for overall survival (OS), disease-free survival (DFS), and recurrence-free survival (RFS) were calculated using fixed-effects or random-effects models. RESULTS: A total of six studies comprising 4908 patients were included in the study. Pooled results showed that low LMR was significantly associated with decreased OS (HR: 0.66, 95% confidence interval [CI]: 0.54-0.82, p < .001), but not with poor DFS/RFS (HR: 0.71, 95% CI: 0.38-1.32, p = .004). The unfavorable prognostic impact of low LMR on OS was observed in patients of different disease stages and cut-off values. Moreover, low LMR was significantly related to age (>median), gender (male), CEA (>5 ng/ml), tumor size (>3 cm), TNM stage (III-IV), lymph node metastasis, and distant metastasis. CONCLUSIONS: Low pretreatment LMR may be a significant prognostic biomarker for poor OS in patients with GC. PMID- 29329787 TI - Outcomes of multisegmental transforaminal enlarged decompression plus posterior pedicle screw fixation for multilevel lumbar spinal canal stenosis associated with lumbar instability. AB - PURPOSE: The aim of this study was to evaluate the clinical and radiologic results of multisegmental transforaminal enlarged decompression (TED) plus posterior pedicle screw fixation in the treatment of multilevel lumbar spinal canal stenosis (LSCS) with lumbar instability (MLSCSI). METHODS: 113 patients with MLSCSI underwent surgery were recruited in this study. All patients were suffering from symptoms typical of degenerative LSCS and treated with either TED plus fusion (TEDF group) or conventional laminectomy plus fusion (CLF group). Clinical and radiologic parameters were evaluated. The clinical data, including Visual Analog Scale (VAS) for back and leg pain, Oswestry Disability Index (ODI), operative time, intraoperative blood loss, postoperative drainage, hospital stay, and the rate of postoperative complications, were assessed. With respect to radiologic parameters, mean disc height (MDH) and lumbar lordotic angle (LLA) were measured using plain radiographs. Patient satisfaction was evaluated according to the North American Spine Society (NASS) Outcome Questionnaire. RESULTS: No serious complications occurred during the follow-up. The operative time was significantly shorter for TEDF group than for CLF group, and similar results were found with regard to the blood loss and postoperative drainage (p < .05). The improvements in ODI, leg and back VAS scores were observed in both groups after surgery and follow-up (P < .05). In the last follow-up, ODI and back VAS scores in TEDF group were significantly higher than those in CLF group (P < .05). Regarding radiologic variants, MDH and LLA were improved after operation for 3 months (P > .05) and were all well maintained in the final follow-up in both groups. Patients in TEDF group were more satisfied than patients in the CLF group (85.2% vs 76.9%, p = .092). CONCLUSIONS: Satisfactory clinical and radiological outcomes can be achieved with the use of multisegmental TED plus lumbar fusion for the treatment of MLSCSI. This technique can reduce surgically induced instability and obviously improve the symptoms and signs of the patients, suggesting a safe and effective therapeutic procedure for MLSCSI. PMID- 29329788 TI - Effect of individualized distal femoral valgus resection angle in primary total knee arthroplasty: A systematic review and meta-analysis involving 1300 subjects. AB - BACKGROUND: Proper limb alignment and implant positioning are important for successful total knee arthroplasty (TKA). Whether any differences exist in restoration of limb alignment for valgus knees between fixed and individual femoral valgus correction angle (VCA) for distal femoral resection remains unknown. METHODS: The PubMed, Medline, Embase, and Wangfang databases were searched to identify studies comparing individualized VCA and fixed VCA in the distal femoral valgus resection. The primary outcomes were the mechanical femorotibial angle (MFT angle) and the proportion of postoperative alignment deviation within +/-3 degrees . The secondary outcomes were femoral valgus correction angle (VCA), component angle (alpha angle and beta angle). RESULTS: Six studies with 1167 TKAs were analyzed quantitatively. The coronal limb alignments in individualized group were closer to neutral than fixed group with a mean 0.77 degrees difference (95% CI, -1.43 to -0.11; P = .022; I2 = 71.0%). Moreover, there were more patients' postoperative alignment deviation within neutral +/-3 degrees in the individualized group (RR, 1.23; 95% CI, 1.09 to 1.38; P = .00; I2 = 36.4%). The alpha angle were closer to neutral in the individualized group, and there's 1.2 degrees more deviation from neutral in the fixed group (95% CI, 0.99 to 1.41; P = .00; I2 = 0%). No difference was found in the beta angle between groups (WMD, 0.85; 95% CI, -0.09 to 1.78; P = .075; I2 = 88.3%). CONCLUSIONS: This systematic review and meta-analysis demonstrated that the individualized VCA for distal femoral resection could enhance the accuracy of postoperative limb alignment and femoral component alignment in the coronal plane. However, further high-quality RCTs and well-designed trials are still needed. PMID- 29329789 TI - Lateral lymph node metastasis in papillary thyroid carcinoma: A systematic review and meta-analysis for prevalence, risk factors, and location. AB - BACKGROUND: Lymph node metastasis (LNM) is frequent in papillary thyroid carcinoma (PTC) and is associated with a poor prognosis. Unlike central LNM (CLNM), there are few studies focusing on LLNM. We aimed to investigate the prevalence and the risk factors for LLNM, with its most prevalent sites. METHODS: We performed a comprehensive literature search using the PubMed and EMBASE databases for relevant studies published prior to November 2016 that examined the risk factors for LLNM. RESULTS: Twenty-three studies, including 18,741 patients, were included. The prevalence of LLNM was 20.9% in all patients. CLNM (pooled OR = 7.84, 95% CI = 6.13-10.02, p < .0001), extrathyroidal extension (pooled OR = 3.22, 95% CI = 2.21-4.70, p < .0001), tumor multifocality (pooled OR = 2.19, 95% CI = 1.67-2.89, p < .0001), male sex (pooled OR = 1.72, 95% CI = 1.50-1.98, p < .0001), upper pole location (pooled OR = 2.96, 95% CI = 1.93-4.53, p < .0001), tumor size >=1.0 cm (pooled OR = 2.49, 95% CI = 1.71-3.61, p < .0001), lymphovascular invasion (pooled OR = 3.96, 95% CI = 2.61-6.03, p < .0001) and tumor bilaterality (pooled OR = 1.31, 95% CI = 1.12-1.53, p = .0006) were significantly associated with LLNM. Most frequently affected areas were levels III and IV. CONCLUSIONS: The prevalence of LLNM was high although the prognostic impact is unknown. The significant risk factors for LLNM were not much different from known risk factors for CLNM. PMID- 29329790 TI - Plant-derived mPGES-1 inhibitors or suppressors: A new emerging trend in the search for small molecules to combat inflammation. AB - Inflammation comprises the reaction of the body to injury, in which a series of changes of the terminal vascular bed, blood, and connective tissue tends to eliminate the injurious agent and to repair the damaged tissue. It is a complex process, which involves the release of diverse regulatory mediators. The current anti-inflammatory agents are challenged by multiple side effects and thus, new effective therapies are highly needed. The aim of this review is to summarize the described microsomal prostaglandin E synthase-1 (mPGES-1) inhibitors or transcriptional suppressors from medicinal plants, which could be an ideal approach in the management of inflammatory disorders, but need further clinical trials in order to be ultimately validated. PMID- 29329791 TI - Corrigendum to "Bcl xL deamidation and cancer: Charting the fame trajectories of legitimate child and hidden siblings." [Biochim. Biophys. Acta 1864/10 (2017) 1734-1745]. PMID- 29329792 TI - [Implementation of a health promotion programme for women in social exclusion in the city of Seville (Spain)]. AB - Health promotion can contribute towards reducing inequality and ensuring equal opportunities, providing the means to enable the entire population to develop its maximum health possibilities. Women living in areas with social transformation needs (ASTN) are an especially vulnerable group due to the situation of material deprivation and social exclusion in which they live. Health promotion programmes for this group can bring about an improvement in their health. This paper describes the health promotion programme Socio-educational Groups of Primary Care for Women (SEGPC-W), and evaluates its implementation in ASTN in the city of Seville (Spain), as well as the benefits and difficulties of its development through a documentary analysis and interviews with participating professionals. PMID- 29329793 TI - Drug use, family support and related factors in university students. A cross sectional study based on the uniHcos Project data. AB - OBJECTIVE: To assess the prevalence of illegal drug use in college students on any previous occasion, during the previous year and the previous month, and to analyze the relationship between illegal drug use and family support and other factors. METHODS: A cross-sectional study using data from students participating in the uniHcos project (n = 3767) was conducted. The prevalence and age of onset of consumption of cannabis, non-prescription sedatives, stimulants and depressants was evaluated. Polyconsumption was also assessed. The independent variables were: family support, age, residence, and employment status. To determine the factors related to drug use multivariate logistic regression models stratified by gender were fitted. RESULTS: Differences between men and women in prevalence of illegal drug use except non-prescription sedatives were observed. In both genders, less family support was associated with higher consumption of all drugs, except depressants, and with polyconsumption. To be studying and looking for work was related to cannabis and stimulant use and to polyconsumption among women, but only to cannabis use among men. CONCLUSIONS: These results support the notion that the start of university studies is a particularly relevant stage in the onset of illegal drug use and its prevention, and that consumption may be especially associated with family support. PMID- 29329794 TI - Redox-signals and macrophage biology. AB - Macrophages are known for their versatile role in biology. They sense and clear structures that contain exogenous or endogenous pathogen-associated molecular patterns. This process is tightly linked to the production of a mixture of potentially harmful oxidants and cytokines. Their inherent destructive behavior is directed against foreign material or structures of 'altered self', which explains the role of macrophages during innate immune reactions and inflammation. However, there is also another side of macrophages when they turn into a tissue regenerative, pro-resolving, and healing phenotype. Phenotype changes of macrophages are termed macrophage polarization, representing a continuum between classical and alternative activation. Macrophages as the dominating producers of superoxide/hydrogen peroxide and nitric oxide are not only prone to oxidative modifications but also to more subtle signaling properties of redox-active molecules conveying redox regulation. We review basic concepts of the enzymatic nitric oxide and superoxide production within macrophages, refer to their unique chemical reactions and outline biological consequences not only for macrophage biology but also for their communication with cells in the microenvironment. These considerations link hypoxia to the NO system, addressing feedforward as well as feedback circuits. Moreover, we summarize the role of redox-signaling affecting epigenetics and reflect the central role of mitochondrial-derived oxygen species in inflammation. To better understand the diverse functions of macrophages during initiation as well as resolution of inflammation and to decode their versatile roles during innate and adaptive immunity with the entire spectrum of cell protective towards cell destructive activities we need to appreciate the signaling properties of redox-active species. Herein we discuss macrophage responses in terms of nitric oxide and superoxide formation with the modulating impact of hypoxia. PMID- 29329795 TI - Omega-3 fatty acids and adipose tissue biology. AB - This review provides evidence for the importance of white and brown adipose tissue (i.e. WAT and BAT) function for the maintenance of healthy metabolic phenotype and its preservation in response to omega-3 polyunsaturated fatty acids (omega-3 PUFA), namely in the context of diseased states linked to aberrant accumulation of body fat, systemic low-grade inflammation, dyslipidemia and insulin resistance. More specifically, the review deals with (i) the concept of immunometabolism, i.e. how adipose-resident immune cells and adipocytes affect each other and define the immune-metabolic interface; and (ii) the characteristic features of "healthy adipocytes" in WAT, which are relatively small fat cells endowed with a high capacity for mitochondrial oxidative phosphorylation, triacylglycerol/fatty acid (TAG/FA) cycling and de novo lipogenesis (DNL). The intrinsic metabolic features of WAT and their flexible regulations, reflecting the presence of "healthy adipocytes", provide beneficial local and systemic effects, including (i) protection against in situ endoplasmic reticulum stress and related inflammatory response during activation of adipocyte lipolysis; (ii) prevention of ectopic fat accumulation and dyslipidemia caused by increased hepatic VLDL synthesis, as well as prevention of lipotoxic damage of insulin signaling in extra-adipose tissues; and also (iii) increased synthesis of anti inflammatory and insulin-sensitizing lipid mediators with pro-resolving properties, including the branched fatty acid esters of hydroxy fatty acids (FAHFAs), also depending on the activity of DNL in WAT. The "healthy adipocytes" phenotype can be induced in WAT of obese mice in response to various stimuli including dietary omega-3 PUFA, especially when combined with moderate calorie restriction, and possibly also with other life style (e.g. physical activity) or pharmacological (e.g. thiazolidinediones) interventions. While omega-3 PUFA could exert beneficial systemic effects by improving immunometabolism of WAT without a concomitant induction of BAT, it is currently not clear whether the metabolic effects of the combined intervention using omega-3 PUFA and calorie restriction or thiazolidinediones depend also on the activation of BAT function and/or the induction of brite/beige adipocytes in WAT. It remains to be established why omega-3 PUFA intervention in type 2 diabetic subjects does not improve insulin sensitivity and glucose homeostasis despite inducing various anti-inflammatory mediators in WAT, including the recently discovered docosahexaenoyl esters of hydroxy linoleic acid, the lipokines from the FAHFA family, as well as several endocannabinoid-related anti-inflammatory lipids. To answer the question whether and to which extent omega-3 PUFA supplementation could promote the formation of "healthy adipocytes" in WAT of human subjects, namely in the obese insulin resistant patients, represents a challenging task that is of great importance for the treatment of some serious non-communicable diseases. PMID- 29329796 TI - The Evolving Face of Myocardial Reperfusion in Acute Coronary Syndromes: A Primer for the Internist. AB - Acute coronary syndromes (ACSs) account for a large proportion of disease burden in the United States and worldwide, and our understanding of ACS management continues to evolve. In this review we take a practical approach to evaluating and treating a patient with ACS, focusing on the optimal timing and methods of coronary reperfusion. Beginning with initial assessment and risk stratification, a provider managing the patient with ACS must be able to expeditiously decide on and implement the correct guideline-directed pathway to optimize outcomes. With an ever-growing body and weight of knowledge in this field, the clinician is tasked with several challenges. First, there are a variety of pathways of care to be considered; second, adjunctive medical therapies are expanding; and third, when coupled with the multiple combinations of adjunctive supportive therapies for revascularization, the variety of potential therapeutic options can be overwhelming and confusing. Herein, we carefully review all the relevant guidelines and the contributing literature, taking a 4-step approach: (1) review the importance of risk stratification before engaging in a particular strategy of care, (2) define the reperfusion strategies available, (3) review the specific agents (antiplatelet and anticoagulant) that support reperfusion strategies, and (4) apply the strategies of care in the context of the clinical presentation. PMID- 29329797 TI - Reducing Risk of Dementia in AF-Is Oral Anticoagulation the Key? PMID- 29329799 TI - Cardiac surgery combined with bypass from the ascending aorta to the bilateral femoral arteries for severe aorto-iliac occlusion: A case series. PMID- 29329800 TI - Surgery for extensive, chronic aortic dissection: What about the elephant (trunks) in the room? PMID- 29329798 TI - Efficacy of Warfarin Anticoagulation and Incident Dementia in a Community-Based Cohort of Atrial Fibrillation. AB - OBJECTIVE: To study the association between time in therapeutic range (TTR) during warfarin therapy and risk of dementia in a population-based cohort of incident atrial fibrillation (AF). PATIENTS AND METHODS: We conducted an observational population-based study of 2800 nondemented patients with incident AF from January 1, 2000, through December 31, 2010. The association of incident dementia with warfarin therapy and TTR was examined using Cox proportional hazards regression models. RESULTS: Mean patient age was 71.2 years; 53% were men (n=1495), and warfarin was prescribed to 50.5% (n=1414) within 90 days of AF diagnosis. Incident dementia diagnosis occurred in 357 patients (12.8%) over a mean +/- SD follow-up of 5.0+/-3.7 years. After adjusting for confounders, warfarin therapy was associated with a reduced incidence of dementia (hazard ratio [HR], 0.80; 95% CI, 0.64-0.99). However, only those in the 2 highest quartiles of TTR were associated with lower risk of dementia. A 10% increase in TTR with a 10% reduction in time spent in the subtherapeutic (HR, 0.71; 95% CI, 0.64-0.79) and supratherapeutic (HR, 0.67; 95% CI, 0.57-0.79) ranges were associated with decreased risk of dementia. CONCLUSION: In the community, warfarin therapy for AF is associated with a 20% reduction in risk of dementia. Increasing TTR on warfarin is associated with reduced risk of dementia. The risk of dementia was reduced with a reduction in time spent in subtherapeutic and supratherapeutic international normalized ratio range. Effective anticoagulation may prevent cognitive impairment in patients with AF. PMID- 29329801 TI - More than just numbers: Counting thoracic aortic disease just isn't that simple. PMID- 29329802 TI - Can use of an administrative database improve accuracy of hospital-reported readmission rates? AB - OBJECTIVES: Readmission rates after cardiac surgery are being used as a quality indicator; they are also being collected by Medicare and are tied to reimbursement. Accurate knowledge of readmission rates may be difficult to achieve because patients may be readmitted to different hospitals. In our area, 81 hospitals share administrative claims data; 28 of these hospitals (from 5 different hospital systems) do cardiac surgery and share Society of Thoracic Surgeons (STS) clinical data. We used these 2 sources to compare the readmissions data for accuracy. METHODS: A total of 45,539 STS records from January 2008 to December 2016 were matched with the hospital billing data records. Using the index visit as the start date, the billing records were queried for any subsequent in-patient visits for that patient. The billing records included date of readmission and hospital of readmission data and were compared with the data captured in the STS record. RESULTS: We found 1153 (2.5%) patients who had STS records that were marked "No" or "missing," but there were billing records that showed a readmission. The reported STS readmission rate of 4796 (10.5%) underreported the readmission rate by 2.5 actual percentage points. The true rate should have been 13.0%. Actual readmission rate was 23.8% higher than reported by the clinical database. Approximately 36% of readmissions were to a hospital that was a part of a different hospital system. CONCLUSIONS: It is important to know accurate readmission rates for quality improvement processes and institutional financial planning. Matching patient records to an administrative database showed that the clinical database may fail to capture many readmissions. Combining data with an administrative database can enhance accuracy of reporting. PMID- 29329803 TI - Explant of a ball and cage valve 42 years after initial implant. PMID- 29329804 TI - A rapid and sensitive fluorometric method for determination of aldehyde oxidase activity. AB - Previous research has characterized the important role of aldehyde oxidases (AOX) in biotransformation of N-heterocyclic therapeutic drugs and environmental contaminants in mammals. Research pertaining to AOX activity in non-mammalian vertebrates, however, is scarce, despite its biological role as a potentially important metabolic pathway for xenobiotics. One of the limiting factors of research on AOX is that available photometric methods are relatively insensitive, limited in throughput, and prone to cross-reactivity from other enzymes. Therefore, this study aimed to develop a novel and improved fluorometric AOX assay. This assay is based on the conversion of the exogenous aldehyde substrate 4-(dimethyl)amino cinnamaldehyde to its corresponding fluorescent acid by AOX, and was evaluated using partially purified hepatic cytosol from rat, human, and rainbow trout. Purification of native cytosol by heat treatment and ammonium sulfate precipitation resulted in increased specific activity of AOX. Michaelis Menten kinetic parameters (Kmand Vmax) were comparable to values previously generated by photometric methods. Furthermore, effects of the inhibitor hydralazine on AOX activity revealed half maximal inhibitory concentrations comparable to those generated using conventional methods. Product identity was confirmed by liquid chromatography and mass spectrometry. In summary, this study successfully developed a rapid and sensitive assay for determination of AOX activity in across different vertebrate species that is 4- to 10-fold more sensitive compared to conventional absorbance-based methods. It can be applied in environmental, toxicological, and pharmacological studies relating to identification of AOX substrates, as well as the induction of AOX expression through drugs and environmental contaminants. PMID- 29329805 TI - Preparative expression and purification of a nacreous protein N16 and testing its effect on osteoporosis rat model. AB - N16, a nacreous protein isolated from Pinctada martensii, is related to nacreous layer formation. Our previous study indicated that N16 showed dual regulatory effects by inducing osteoblast biomineralization as well as inhibiting osteoclast formation. In order to obtain large quantity of N16 for animal experiment and clinical trial, a fermentation and preparative purification method was established. The N16 cDNA was cloned to a BL21(DE3)plysE-pET32a vector and grown in a 20 L fermenter. The medium, temperature, pH and dissolved oxygen (DO) were optimized. N16 was expressed in inclusion bodies. It was denatured and refolded in 8 M urea buffer and purified to 97% purity by passing through a gel filtration column. The glucocorticoid induced osteoporosis (GIO) rat model was used to investigate the anti-osteoporosis activity of N16 in vivo. Results showed that the decrease of the bone mineral density (BMD) and the ultimate load was significantly relieved after N16 treatment. N16 displayed dual regulatory effects by promoting osteogenesis as well as inhibiting bone resorption in vivo. Our work will contribute to further clinical studies on N16 for osteoporosis treatment. PMID- 29329806 TI - Effect of different animal fat and plant oil additives on physicochemical, mechanical, antimicrobial and antioxidant properties of chitosan films. AB - Practical application of chitosan-essential oil blend films is limited due to the uneconomical extraction procedure of essential oils from plants. This study aimed to produce chitosan films blended with low cost and commercially available oils and fats consumed in daily human diet (olive, corn and sunflower oils, butter and animal fats). The study also focused on how physicochemical, biological and mechanical properties of chitosan blend films were influenced by the incorporation of oils and fats with varying unsaturation degrees. Possible interactions of chitosan film matrix with incorporated oils or fats were investigated. Chitosan-olive oil film showed better surface morphology and higher thermal stability than the films with other unsaturated oils. Tensile strength, Young's modulus and elongation at break were improved by 57.2%, 25.1% and 31.7% for chitosan-olive oil film, respectively. Chitosan-olive oil blend film had the highest antibacterial activity (almost equal to that of commercial antibiotic gentamicin). Edible films obtained from by incorporation of natural oils and fats into chitosan can help produce an environmentally friendly packaging material that is low cost and easily manufactured. PMID- 29329807 TI - Nasal adhesive patches - Approach for topical application for dry nasal syndrome. AB - This present study intended to provide nasal adhesive formulations for the topical treatment of dry nasal syndrome. Mucoadhesive films were prepared according to solvent evaporation method consisting of well-known polymers such as gellan and carboxymethyl cellulose. Mucoadhesive films (A-E) were evaluated in respect to their physicochemical properties, stability, disintegration behavior and tensile strength. Moreover, uptake capacity of adhesive films was investigated according to three assays vapor uptake/ permeability and water uptake. Mucoadhesive assessment was carried out on porcine nasal mucosa in terms of adhesion time, wash off resistance and spreadability. Obtained finings indicated 4.2 (B) > 2.55 (A) > 1.8 (D) > 1.3 (C) > 1(E) fold vapor uptake ranking. The bioadhesive results indicated a 60-fold (B) > 8.58-fold (C) > 7.42 fold (E) > 1.3-fold (D) improvement in comparison to formulation A. A variety of humectants such as urea, Aloe vera, allantoin and hyaluronic acid was incorporated in the formulations. Taken together, nasal adhesive films convinced with their proficiency of mucoadhesiveness and stability to be suitable in the management of dry nasal syndrome. PMID- 29329808 TI - Structural and energetic basis for the molecular recognition of dual synthetic vs. natural inhibitors of EGFR/HER2. AB - Activation of EGFR starts by ligand binding at the extracellular domain which results in homo and heterodimerization, leading to phosphorylation, activation of downstream signaling pathways which upregulate expression of genes, proliferation and angiogenesis. Abnormalities in the expression of EGFR play a critical role in the development of different types of cancer. HER2 is the preferred heterodimerization partner for EGFR; this biological characteristic together with the high percentage of structural homology has been exploited in the design of dual synthetic inhibitors against EGFR/HER2. Herein we combined structural data and molecular dynamics (MD) simulations coupled to an MMGBSA approach to provide insight into the binding mechanism between two dual synthetics (lapatinib and TAK 285) and one dual natural inhibitor (EGCG) which target EGFR/HER2. In addition, we proposed some EGCG derivatives which were filtered through in silico screening. Structural analysis demonstrated that the coupling of synthetic, natural or newly designed compounds impacts the conformational space of EGFR and HER2 differently. Energetic analysis points out that lapatinib and TAK-285 have better affinity for inactive EGFR than the active EGFR state or HER2, whereas some EGCG derivatives seem to form binding affinities similar to those observed for lapatinib or TAK-285. PMID- 29329809 TI - New N-guanidinium chitosan/silica ionic microhybrids as efficient adsorbent for dye removal from waste water. AB - N-guanidinium chitosan acetate, a new chitosan derivative, was prepared via direct guanylation reaction between chitosan and cyanamide in the presence of scandium (III) triflate. Treatment of N-guanidinium chitosan acetate with 3 (trihydroxysilyl)-1-propanesulphonic acid followed by sol-gel reaction allowed accessing N-guanidinium chitosan silica hybrid material. The new ionic microhybrid was characterized using 13C and 29Si solid state NMR, IR spectroscopy, scanning electron microscopy and thermogravimetry. Further studies in the area of separation indicated very high adsorption capacity for cationic dyes such as methylene blue (MB), with capacities up to 935 mg/g. The adsorption kinetics can accurately be described by pseudo second-order model. Equilibrium adsorption data showed a better fit with Langmuir adsorption isotherm model. Recycling test showed that the ionic microhybrid can be reused in at least five adsorption-desorption cycles. These results open new perspectives and possibilities for the design of novel hybrid adsorbents for industrial and environmental applications. PMID- 29329810 TI - Facile microencapsulation of olive oil in porous starch granules: Fabrication, characterization, and oxidative stability. AB - In this study, starch with porous structures derived from purple sweet potato was prepared and used as a food-grade polymer for the microencapsulation of olive oil. The optimal reaction conditions for preparing porous starch were determined to improve its adsorption capacity as effective microcapsule-wall materials. Olive oil was then impregnated in microspheres, and loading ratio was optimized by investigating the restrictive factors, including the mass ratio of olive oil to porous starch, as well as the embedding temperature and time. The presence of olive oil in the starch matrix was confirmed by SEM, FTIR, and TGA. Results demonstrated that the porous starch-based microencapsulation exhibit a stable olive oil loading ratio and a significant improvement in oxidative stability compared with free olive oil. The newly-proposed process used in this work was easy to scale up for developing a new and attractive method for oil protection in the food industry. PMID- 29329811 TI - Cardioprotection activity and mechanism of Astragalus polysaccharide in vivo and in vitro. AB - Astragalus polysaccharides (ASP) is extracted from Astragalus, and is the main active ingredient of Astragalus membranaceus. The purpose of this study was to investigate the protective effect of ASP on rat cardiomyocytes damage induced by myocardial ischemia and reperfusion injury (MVRI) and isoprenaline(ISO) in vivo and in vitro. The model of cardiomyocytes damage was induced using MVRI in a rat in vivo and also using ISO in cell. After ASP intervention, the protective effect of ASP on cardiomyocytes was evaluated by animal experimental and cell experimental. The results show that ASP can relieve the increase of cell volume in myocardium, reduce the apoptosis of cell in myocardial tissue caused by MVRI in vivo. At the cellular level, ASP can reverse the decrease of cell activity induced by ISO, inhibit the apoptosis, and decrease the levels of intracellular reactive oxygen species. Mechanistically at the molecular level, these effects are elicited via down-regulation of the protein levels of caspase-3 and bax and up-regulation of the protein levels of bcl-2 in both in vivo and in vitro. These results demonstrate that ASP has a protective efficacy in MVRI/ISO-treated cardiomyocytes by inhibiting the apoptosis. PMID- 29329812 TI - Synergistic effect of polysaccharides, betalain pigment and phenolic compounds of red prickly pear (Opuntia stricta) in the stabilization of salami. AB - The aim of this work is to try to substitute some synthetic additives by a natural extract from red prickly pear (Opuntia stricta) which known by its richness on bioactive polysaccharides mainly consisting of galactose, rhamnose and galacturonic acid. This natural fruit has a high content of carbohydrates above 18.81% FM. It contains also a high level of polyphenols 152.25 +/- 0.26 MUg QE/mg PPE and flavonoids about 370.60 +/- 0.12 MUg GAE/mg of PPE. In addition, prickly pear extract (PPE) displayed a strong antioxidant and antimicrobial activities. These activities are likely due to its phenolic, flavonoid and carbohydrate contents. Moreover, the addition of 2.5% of PPE, as a natural colorant and antimicrobial agent in salami formulation, causes a decrease in hardness and chewiness of the formulated salami. Interestingly, PPE inhibited bacterial growth in salami stored at 4 degrees C over 30 days. Sensorial analysis shows that the color, taste and texture of salami prepared with 2.5% of PPE are markedly more appreciated by panelists. Our results suggest that the betalain pigment, carbohydrate and phenolic compounds present in PPE could be used as a natural colorant, antioxidant and antimicrobial agent without change of the sensory characteristics. PMID- 29329814 TI - Interaction between structurally different heteroexopolysaccharides and beta lactoglobulin studied by solution scattering and analytical ultracentrifugation. AB - Despite a very large number of bacterial exopolysaccharides have been reported, detailed knowledge on their molecular structures and associative interactions with proteins is lacking. Small-angle X-ray scattering, dynamic light scattering and analytical ultracentrifugation (AUC) were used to characterize the interactions of six lactic acid bacterial heteroexopolysaccharides (HePS-1-HePS 6) with beta-lactoglobulin (BLG). Compared to free HePSs, a large increase in the X-ray radius of gyration RG, maximum length L and hydrodynamic diameter dH of HePS-1-HePS-4 mixed with BLG revealed strong aggregation, the extent of which depended on the compact conformation and degree of branching of these HePSs. No significant effects were observed with HePS-5 and HePS-6. Turbidity and AUC analyses showed that both soluble and insoluble BLG-HePS complexes were formed. The findings provide new insights into the role of molecular structures in associative interactions between HePSs and BLG which has relevance for various industrial applications. PMID- 29329813 TI - Effects of metal ions in tea polysaccharides on their in vitro antioxidant activity and hypoglycemic activity. AB - Total tea polysaccharides (TTPS) were extracted from two kinds of pruning leaves of tea plant and fractionated into neutral tea polysaccharides (TPSI) and acidic tea polysaccharides (TPSII) by anion exchange resin D315. Some physicochemical properties, including structure, monosaccharide composition, and molecular weight distribution, as well as the 4 in vitro antioxidant activities and inhibitory effects on alpha-glucosidase of above polysaccharides before and after removing metal ions were investigated. By comparing TTPS and TPSII, we found that they exhibited different antioxidant activities and inhibitory actions against alpha glucosidase after their metal ions were removed. However, the in vitro antioxidant activities and inhibitory effects on alpha-glucosidase of TPSI were substantially improved. The study can be a certain reference for tea and soil selection. At the same time, we suggested that pruning leaves of tea plant could be treated as a potential resource for the development of polysaccharide antioxidants and hypoglycemic products. PMID- 29329815 TI - Exploring molecular insights into the interaction mechanism of cholesterol derivatives with the Mce4A: A combined spectroscopic and molecular dynamic simulation studies. AB - Mammalian cell entry protein (Mce4A) is a member of MCE-family, and is being considered as a potential drug target of Mycobacterium tuberculosis infection because it is required for invasion and latent survival of pathogen by utilizing host's cholesterol. In the present study, we performed molecular docking followed by 100 ns MD simulation studies to understand the mechanism of interaction of Mce4A to the cholesterol derivatives and probucol. The selected ligands, cholesterol, 25-hydroxycholesterol, 5-cholesten-3beta-ol-7-one and probucol bind to the predicted active site cavity of Mce4A, and complexes remain stable during entire simulation of 100 ns. In silico studies were further validated by fluorescence-binding studies to calculate actual binding affinity and number of binding site(s). The non-toxicity of all ligands was confirmed on human monocytic cell (THP1) by MTT assay. This work provides a deeper insight into the mechanism of interaction of Mce4A to cholesterol derivatives, which may be further exploited to design potential and specific inhibitors to ameliorate the Mycobacterium pathogenesis. PMID- 29329816 TI - Structural polymorphism of a cytosine-rich DNA sequence forming i-motif structure: Exploring pH based biosensors. AB - Sequence recognition and conformational polymorphism enable DNA to emerge out as a substantial tool in fabricating the devices within nano-dimensions. These DNA associated nano devices work on the principle of conformational switches, which can be facilitated by many factors like sequence of DNA/RNA strand, change in pH or temperature, enzyme or ligand interactions etc. Thus, controlling these DNA conformational changes to acquire the desired function is significant for evolving DNA hybridization biosensor, used in genetic screening and molecular diagnosis. For exploring this conformational switching ability of cytosine-rich DNA oligonucleotides as a function of pH for their potential usage as biosensors, this study has been designed. A C-rich stretch of DNA sequence (5' TCCCCCAATTAATTCCCCCA-3'; SG20c) has been investigated using UV-Thermal denaturation, poly-acrylamide gel electrophoresis and CD spectroscopy. The SG20c sequence is shown to adopt various topologies of i-motif structure at low pH. This pH dependent transition of SG20c from unstructured single strand to unimolecular and bimolecular i-motif structures can further be exploited for its utilization as switching on/off pH-based biosensors. PMID- 29329817 TI - Isothermal chemical denaturation as a complementary tool to overcome limitations of thermal differential scanning fluorimetry in predicting physical stability of protein formulations. AB - Various stability indicating techniques find application in the early stage development of novel therapeutic protein candidates. Some of these techniques are used to select formulation conditions that provide high protein physical stability. Such approach is highly dependent on the reliability of the stability indicating technique used. In this work, we present a formulation case study in which we evaluate the ability of differential scanning fluorimetry (DSF) and isothermal chemical denaturation (ICD) to predict the physical stability of a model monoclonal antibody during accelerated stability studies. First, we show that a thermal denaturation technique like DSF can provide misleading physical stability rankings due to buffer specific pH shifts during heating. Next, we demonstrate how isothermal chemical denaturation can be used to tackle the above mentioned challenge. Subsequently, we show that the concentration dependence of the Gibbs free energy of unfolding determined by ICD provides better predictions for the protein physical stability in comparison to the often-used Tm (melting temperature of the protein determined with DSF) and Cm (concentration of denaturant needed to unfold 50% of the protein determined with ICD). Finally, we give a suggestion for a rational approach which includes a combination of DSF and ICD to obtain accurate and reliable protein physical stability ranking in different formulations. PMID- 29329818 TI - Hybrid Imaging in Ischemic Heart Disease. AB - Hybrid imaging for ischemic heart disease refers to the fusion of information from a single or usually from multiple cardiovascular imaging modalities enabling synergistic assessment of the presence, the extent, and the severity of coronary atherosclerotic disease along with the hemodynamic significance of lesions and/or with evaluation of the myocardial function. A combination of coronary computed tomography angiography with myocardial perfusion imaging, such as single-photon emission computed tomography and positron emission tomography, has been adopted in several centers and implemented in international coronary artery disease management guidelines. Interest has increased in novel hybrid methods including coronary computed tomography angiography-derived fractional flow reserve and computed tomography perfusion and these techniques hold promise for the imminent diagnostic and management approaches of patients with coronary artery disease. In this review, we discuss the currently available hybrid noninvasive imaging modalities used in clinical practice, research approaches, and exciting potential future technological developments. PMID- 29329819 TI - The effect of continuous positive airway pressure on spectral encephalogram characteristics in stroke patients with obstructive sleep apnea. AB - OBJECTIVES: To evaluate if treatment with continuous positive airway pressure (CPAP) compared to usual care in stroke patients with obstructive sleep apnea (OSA) over one month reduces delta and alpha oscillations on quantitative electroencephalography (EEG) in association with improvements in cognitive or functional outcomes. METHODS: Spectral EEG analysis was performed in patients with subacute stroke and OSA randomized to usual care or CPAP treatment from a previous study. RESULTS: A total of 23 subjects were included. Compared to CPAP (n = 14), those in the control (n = 9) group demonstrated a significant increase in alpha power (p = 0.042). There was no between group differences for delta, theta or beta power. No significant correlation was demonstrated between the change in alpha power and indices of OSA severity or sleepiness. The increase in alpha power did not correlate with improvements in outcomes. CONCLUSION: Contrary to expectations CPAP treatment of OSA did not significantly decrease alpha and delta oscillations in stroke subjects. PMID- 29329820 TI - Increased testicular estradiol during the neonatal interval reduces Sertoli cell numbers. AB - Previous studies have demonstrated that reducing endogenous testicular estradiol in neonatal boars would stimulate increased proliferation of Sertoli cells during the neonatal interval. The objective of this experiment was to determine if increasing testicular estradiol would have the opposite effect of reducing Sertoli cell numbers during the neonatal interval. Five littermate pairs of boars were evaluated with one littermate receiving a silastic implant containing estradiol and the second receiving only silastic at 1.5 weeks of age. Testes were recovered at 6.5 weeks of age and Sertoli cell numbers determined. Littermates treated with exogenous estradiol had approximately two-thirds as many Sertoli cells as their control littermates (P < 0.001). This is additional evidence for regulation of Sertoli cell numbers during the neonatal interval by intra testicular estradiol. PMID- 29329821 TI - Diminished activation of the right Inferior Parietal Lobule as a neural substrate of impaired cartoon-jokes comprehension in schizophrenia outpatients. PMID- 29329822 TI - Lymphoma following clozapine exposure: More information needed. PMID- 29329823 TI - Atypical presentation of CMV pneumonia in a heart transplant patient. PMID- 29329824 TI - Total hysterectomy as hematocolpos treatment following bone marrow transplant. A rare complication of chronic graft-versus-host disease. PMID- 29329825 TI - Effectiveness and Safety of Transcatheter Aortic Valve Implantation in Patients With Pure Aortic Regurgitation and Advanced Heart Failure. AB - Results of transcatheter aortic valve implantation (TAVI) for treatment of severe noncalcific isolated aortic regurgitation (AR) complicated by advanced heart failure or cardiogenic shock has been previously reported only in isolated case reports. Current self-expanding transcatheter aortic valves are designed to treat aortic valve stenosis, and have also been implanted in cases of severe AR due to degenerated bioprosthesis and in very few cases of native aortic valves. We report 13 consecutive inoperable patients with noncalcific, pure AR, and advanced heart failure treated with emergency percutaneous transfemoral implantation with self-expandable CoreValves at our institution between July 2012 and September 2017. The immediate and long-term clinical outcome was prospectively assessed according to the Valve Academic Research Consortium-2 criteria for device success and safety. All but 3 patients had previous surgery of the aortic root, including 2 implants of Heart Mate-II left ventricle assist device; none had surgical aortic bioprosthesis at the time of the TAVI. Valve implantation was successful in 12 of 13 patients (92%) and 1 patient required a second unplanned valve procedure within 18 hours. Oversizing the prosthesis by approximately 15% yielded better results with 1 valve. Two patients with left ventricle assist device died within 30 days of TAVI. All patients who survived to hospital discharge had none or just mild residual AR, improved their cardiac function, and survived at long term without recurrence of clinical events. In conclusion, implanting self expandable transcatheter valves in patients pure AR in this small study was safe and effective, and represented an important option for inoperable patients with noncalcific severe AR. PMID- 29329826 TI - Gender Differences in Presentation, Treatment, and In-Hospital Outcome of Patients Admitted With Heart Failure Complicated by Atrial Fibrillation (from the Get With the Guidelines-Heart Failure [GWTG-HF] Registry). AB - Almost 25% of patients with heart failure (HF) have coexisting atrial fibrillation (AF), the latter of which may increase morbidity and mortality. Despite the high prevalence of HF with concomitant AF, this subgroup of patients remains understudied. This study examines gender differences in presentation, treatment and in-hospital outcome of patients with HF and AF. The Get With the Guidelines-Heart Failure (GWTG-HF) database enrolled 6,496 patients with HF who presented to Cooper University Hospital from 2005 to 2012. Twenty-four percent (1,561 patients) had concomitant AF. Pearson chi-square tests and the Student T tests were used to compare patient characteristics by gender. Multivariate logistic regression was used to predict in-hospital mortality. Six hundred sixty nine (42.8%) patients with HF and AF were women. Women were older (p <0.001), had a higher ejection fraction (p <0.001), had systolic hypertension (p <0.001), and were more likely to have health insurance (p <0.001). Despite a higher CHADS2 score in women (p = 0.007), there was no gender difference in percent of anticoagulation medications prescribed before admission. Women were less likely to present with dizziness, lightheadedness, or syncope, and were more likely to be compliant with medications and diet recommendations before admission. Despite differences in presentation, co-morbidities, and therapy, in-hospital mortality was similar between men and women. Decreased appetite or early satiety predicted in-hospital mortality in women, whereas age, chest pain on admission, and decreased appetite or early satiety predicted in-hospital mortality in men. In conclusion, women presenting with HF complicated by AF clinically differ from men, but despite these differences, both groups shared similar symptom presentation and in-hospital mortality rates. PMID- 29329828 TI - Frequency and Prognostic Significance of Acute Kidney Recovery in Patients Who Underwent Transcatheter Aortic Valve Implantation. AB - Acute kidney injury (AKI) after transcatheter aortic valve implantation (TAVI) is associated with increased mortality. As significant hemodynamic improvement may occur with relief of aortic stenosis, we hypothesized that TAVI patients may demonstrate the opposite phenomena: acute kidney recovery (AKR). We studied the incidence and predictors of AKR in post-TAVI patients. A total of 366 consecutive patients underwent TAVI (January 2012 to January 2017) at a single center. We defined AKR as a 25% improvement in glomerular filtration rate (GFR) at 48 hours after TAVI. AKI-creatinine (Cr) was defined as an increase in Cr of >=0.3 mg/dl at 48 hours. Patients were categorized in 3 groups: AKR (>=25% increase in GFR), unchanged GFR, and AKI-GFR (inverse definition of AKR, >=25% decrease in GFR). Multivariable logistic regression defined independent predictors of AKR. AKR occurred in 1/3 of patients. AKI-Cr occurred in 13% of patients, whereas AKI-GFR occurred similarly in 15%. AKR and AKI occurred most frequently in patients with chronic kidney disease (CKD: GFR <= 60 ml/min/1.73 m2). Independent predictors of AKR-GFR by multivariable analysis were male gender, lack of chronic beta-blocker utilization, and presence of CKD. Notably, left ventricular dysfunction and contrast volume were not predictive of AKR. Transfusion occurred less frequently among patients with AKR compared with patients with AKI-GFR (11% vs 26%, p = 0.03). Death occurred in 0% of AKR patients versus 9.3% of AKI-GFR patients (p <0.01). In conclusion, this is the first report of AKR after TAVI. Patients with CKD, male gender, and lack of pre-TAVI beta blockade were more likely to demonstrate AKR. PMID- 29329827 TI - Effect of Serum Adiponectin Levels on the Association Between Childhood Body Mass Index and Adulthood Carotid Intima-Media Thickness. AB - Childhood obesity predicts adult cardiovascular risk. We hypothesized that the association between childhood body mass index (BMI) and adult carotid intima media thickness (CIMT) may be modified by levels of adiponectin, an adipocytokine that connects body fatness with cardiovascular risk. The study sample included 1,052 adults (71% white and 29% black, 57% female) aged 23.8 to 43.5 years who were previously examined as children in the Bogalusa Heart Study cohort, with an average follow-up period of 26.5 (range 14.1 to 29.6) years. Childhood BMI, low density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglycerides, and systolic blood pressure were standardized to age-specific z scores. General linear models were used for data analyses. Childhood BMI (p = 0.034), low-density lipoprotein cholesterol (p <0.001), and systolic blood pressure (p = 0.005), along with adult adiponectin levels (p = 0.002) were associated with adult CIMT, adjusted for race, sex, adult age, and cigarette smoking. Further, adult adiponectin levels significantly modified the association between childhood BMI and adult CIMT (P for interaction = 0.0003) such that a significant association between childhood BMI and adult CIMT (p <0.0001) was only observed in those with adiponectin levels below the median. In conclusion, these results suggest that serum adiponectin levels modify the association between childhood obesity and adult atherosclerosis, which has implications for risk stratification and targeted intervention for obese children with low levels of adiponectin. PMID- 29329829 TI - Effectiveness and safety of foam sclerotherapy with 5% ethanolamine oleate in the treatment of low-flow venous malformations in the head and neck region: a case series. AB - The aim of this study was to evaluate the effectiveness and safety of 5% ethanolamine oleate (EO) foam in the treatment of low-flow venous malformations in the head and neck region. Seventeen consecutive patients (six male, 11 female) and 34 low-flow venous malformations were enrolled. The vascular anomalies ranged between 20mm and 80mm in size. The typical clinical indication was a swelling (88.2%) with a purple colour (85.3%); the most frequent location was the tongue (23.5%). Ethanolamine oleate foam was produced via the Tessari method and applied at 10mg per 1cm to the vascular anomalies. This process resulted in the highest clinical healing score in 64.7% of cases, and half of the patients reported a high level of satisfaction (score >9). In the majority of cases (88.2%), the patients reported that the pain immediately postoperative was mild or moderate. There were direct relationships between vascular anomaly size and the volume of EO applied, the number of sessions, and healing (P<0.05). No recurrence was observed during 6 months of follow-up. This case series showed the effectiveness and safety of 5% EO foam for the treatment of venous malformations in the head and neck region. PMID- 29329830 TI - Theoretical research in structure characteristics of different inhibitors and differences of binding modes with CBP bromodomain. AB - The CBP (CREB (cAMP responsive element binding protein) binding protein) bromodomain (BRD) could recognize and bind with acetyl K382 of human tumor suppressor protein p53 which the mutation of encoding gene might cause human cancers. CBP-BRD serves as a promising drug target for several disease pathways and a series of effective drug have been discovered. In this study, molecular dynamics (MD) simulations and molecular mechanics generalized born surface area (MM-GB/SA) approaches were performed to investigate the different binding modes between five inhibitors with CBP-BRD. Based on the energy and conformation analyses, a potent core fragment is chosen to act as the starting point for new inhibitor design by means of LUDI and rational drug design approaches. Then, T.E.S.T and molinspirition were applied to evaluate oral bioavailability and drug promiscuity of the new molecules. These results shed light on the idea for further inhibitor design. PMID- 29329831 TI - Physicochemical properties, nutritional value and techno-functional properties of goldenberry (Physalis peruviana) waste powder concise title: Composition of goldenberry juice waste. AB - Goldenberry waste powder, contained 5.87% moisture, 15.89% protein, 13.72% fat, 3.52% ash, 16.74% dietary fiber and 61% carbohydrates. Potassium (560 mg/100 g) was the predominant element followed by sodium (170 mg/100 g) and phosphorus (130 mg/100 g). Amino acid analysis gave high levels of cystine/methionine, histidine and tyrosine/phenylalanine. Goldenberry waste powder had good levels of the techno-functional properties including water absorption index, swelling index, foaming capacity and stability (3.38 g/g, 5.24 ml/g, 4.09 and 72.0%, respectively). Fatty acids profile showed that linoleic acid was the predominant fatty acid followed by oleic, palmitic and stearic acids. Iodine value (109.5 g/100 g of oil), acid value (2.36 mg KOH/g of oil), saponification value (183.8 mg KOH/g of oil), peroxide value (8.2 meq/kg of oil) and refractive index (1.4735) were comparable to those of soybean and sunflower oils. Goldenberry waste oil exhibited absorbance in the UV range at 100-400 nm. PMID- 29329832 TI - Effects of cluster thinning on vine photosynthesis, berry ripeness and flavonoid composition of Cabernet Sauvignon. AB - Cluster thinning is a common practice for regulating vine yield and grape quality. The effects of cluster thinning on vine photosynthesis, berry ripeness and flavonoid composition of V. vinifera L. Cabernet Sauvignon were evaluated during two seasons. Half of the clusters were removed at pea-size and veraison relative to two controls, respectively. Both cluster thinning treatments significantly increased pruning weight and decreased yield. No effects of cluster thinning on berry growth, ripeness and flavonol composition were observed. Early cluster thinning decreased the photosynthetic rate at pea-size, but the effect diminished at post-veraison. Early cluster thinning significantly promoted the biosynthesis of anthocyanins but decreased the proportion of 3'5'-hydroxylated and acylated anthocyanins at veraison. Late cluster thinning decreased the proportions of 3'5'-hydroxylated and acylated anthocyanins. Additionally, Cluster thinning showed inconsistent effects on flavan-3-ol composition over the two seasons. PMID- 29329833 TI - Effect of brewing time and temperature on antioxidant capacity and phenols of white tea: Relationship with sensory properties. AB - White tea is highly consumed due to its sensory properties and health benefits, although most scientific reports don't include the analysis of both properties. Therefore, the objective of the present study was to unravel the best brewing conditions for optimal extraction of the bioactive compounds and antioxidant capacity, while realising the best sensory properties. Infusions of eighty commercial teas (sold in bags or leaves) were obtained at different time temperature ratios, studying bioactive compounds (caffeine and individual catechins), antioxidant capacity and sensory analysis. Brewing at 98 degrees C for 7 min was the best condition to obtain a high content of antioxidant polyphenols and pleasant sensory properties. Those teas sold in bags give rise to tea brews with almost double antioxidant capacity. In conclusion, it is very important to link sensory and chemical data to obtain optimal sensorial quality and the highest healthy properties in white tea infusions. PMID- 29329834 TI - Heterospectral two-dimensional correlation analysis with near-infrared hyperspectral imaging for monitoring oxidative damage of pork myofibrils during frozen storage. AB - Near-infrared (NIR) spectra contain abundant data, heterospectral two-dimensional correlation (H2D-CS) analysis offers a good way to interpret these data. For the first time, H2D-CS was used to correlate the NIR hyperspectral imaging (HSI) data with mid-infrared spectra and to identify feature-related wavebands for developing models for monitoring the oxidative damage of pork myofibrils during frozen storage. The HSI images were acquired at frozen state without thawing and the oxidative damage of myofibrils was assessed by carbonyl content. Results showed that the simplified PLSR model based on H2D-CS identified feature wavebands obtained determination coefficient in prediction (R2P) of 0.896 and root mean square error in prediction (RMSEP) of 0.177 nmol/mg protein, which was better than the partial least square regression (PLSR) model based on full wavebands (R2P = 0.856, RMSEP = 0.209 nmol/mg protein). Therefore, H2D-CS was effective in selecting feature-related wavebands of NIR HSI. PMID- 29329835 TI - In depth chemical investigation of Glycyrrhiza triphylla Fisch roots guided by a preliminary HPLC-ESIMSn profiling. AB - Chemical investigations on Glycyrrhiza spp. have mostly been focused on G. glabra (typically cultivated in Europe, henceforth called European licorice), G. uralensis and G. inflata (known as Chinese licorice) with little information on the constituents of other Glycyrrhiza species. According to the growing interest in further Glycyrrhiza spp. to be used as sweeteners, the roots of G. triphylla have been investigated. The LC-ESI/LTQOrbitrap/MS profile of the methanolic extract of G. triphylla roots guided the isolation of 21 compounds, of which the structures were elucidated by 1D- and 2D-NMR experiments. Based on this approach, 6 previously unreported compounds including two isoflavones 7,5'-dihydroxy-6,3' dimethoxy-isoflavone-7-O-beta-d-glucopyranoside (4) and 7,5'-dihydroxy-6,3' dimethoxy-isoflavone-7-O-(7,8-dihydro-p-hydroxycinnamoyl)-beta-d-glucopyranoside (7) and four saponins, named licoricesaponins M3 (13), N2 (14), O2 (16) and P2 (18), have been characterized. It is to be noted that the accurate masses of some compounds here reported for the first time corresponded to those of compounds previously described in Glycyrrhiza spp. Thus an approach based only on MS analysis could be misleading; only isolation followed by NMR analysis allowed us to unambiguously assign the structures of these previously unreported compounds. PMID- 29329836 TI - Fermented Apulian table olives: Effect of selected microbial starters on polyphenols composition, antioxidant activities and bioaccessibility. AB - The effects of fermentation by autochthonous microbial starters on phenolics composition of Apulian table olives, Bella di Cerignola (BDC), Termite di Bitetto (TDB) and Cellina di Nardo (CEL) were studied, highlighting also the cultivars influence. In BDC with starter, polyphenols amount doubled compared with commercial sample, while in TDB and CEL, phenolics remain almost unchanged. The main phenolics were hydroxytyrosol, tyrosol, verbascoside and luteolin, followed by hydroxytyrosol-acetate detected in BDC and cyanidine-3-glucoside and quercetin in CEL. Scavenger capacity in both DPPH and CAA assays, assessed the highest antioxidant effect for CEL with starters (21.7 mg Trolox eq/g FW; 8.5 MUmol hydroxytyrosol eq/100 g FW). The polyphenols were highly in vitro bioaccessible (>60%), although modifications in their profile, probably for combined effect of environment and microorganisms, were noted. Finally, fermented table olives are excellent source of health promoting compounds, since hydroxytyrosol and tyrosol are almost 8 times more than in olive oil. PMID- 29329837 TI - The fate and enantioselective behavior of zoxamide during wine-making process. AB - The fate of zoxamide and its enantiomers were evaluated in detail during wine making process. The enantiomers of zoxamide were separated and determined by ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) after each processing procedure including washing, peeling, fermentation and clarification. Significant enantioselectivity was observed in all three treatments with the half-lives of R-zoxamide and S-zoxamide estimated to be 45.6 and 52.9 h in Group A, 45.0 and 52.1 h in Group B, 56.8 and 70.7 h in Group C, respectively. The results indicated that R-zoxamide degraded faster than S-zoxamide during the fermentation process. The processing factors (PFs) of each procedure were generally less than 1, and the PF of the overall process ranged from 0.019 to 0.051, which indicated that the whole process can reduce the zoxamide residue in red and white wine obviously. The results could help facilitate more accurate risk assessments of zoxamide during wine-making process. PMID- 29329838 TI - Effect of extraction methods on the chemical components and taste quality of green tea extract. AB - The physicochemical properties of tea extracts are significantly affected by the extraction method. The aim of this study was to compare the effects of static and dynamic extractions on the concentrations of chemical components and taste quality of green tea extracts. Our results show that extraction of chemical components using static extraction follows a pseudo-second-order reaction, while that of dynamic extraction follows a first-order reaction. The concentrations of the solids, polyphenols, and free amino acids in green tea extract prepared by dynamic extraction were much higher, although the overall yields were not significantly different between the two extraction methods. Green tea extracts obtained via dynamic extraction were of lower bitterness and astringency, as well and higher intensities of umami and overall acceptability. These results suggest that dynamic extraction is more suitable for the processing of green tea concentrate because of the higher concentration of green tea extract. PMID- 29329839 TI - Bioaccessibility and potential bioavailability of phenolic compounds from achenes as a new target for strawberry breeding programs. AB - Strawberry is a major natural source of bioactive compounds. Botanically, strawberry is an aggregate fruit consisting of a fleshy floral receptacle that bears a cluster of real dry fruits (achenes). Existing knowledge on the phenolic composition of achenes and its contribution to that of the whole fruit is limited. Also, the gastric and intestinal bioavailability of phenols is poorly known. In this work, a combination of spectrophotometric and HPLC-DAD methods was used to analyse the phenolic composition of whole fruits and achenes before and after in vitro digestion. Five different phenol families were identified. Also, achenes were found to contribute a sizeable fraction of phenolic acids and hydrolysable tannins in the whole fruit. Because the mere presence of phenolic compounds in a food matrix does not ensure their ready absorption and bioavailability, polyphenol potential bioavailability could be an effective selection criterion for strawberry breeding programs aimed at improving dietary healthiness. PMID- 29329840 TI - Determination of colistin in animal tissues, egg, milk, and feed by ultra-high performance liquid chromatography-tandem mass spectrometry. AB - A confirmatory method for the determination of colistin in animal tissues, egg, milk, and feed was developed and validated. Colistin A and colistin B were extracted from samples with the mixture of 10% trichloroacetic acid-acetonitrile and isolated with mixed-mode weak cation exchange cartridge. Analytes were separated from matrix components using ultra-high performance liquid chromatography, and detected with electrospray ionization on a triple quadrupole mass spectrometer. Mean recoveries ranged from 78.0% to 115.6% with intra-day and inter-day relative standard deviation lower than 8.4% and 12.4%, respectively. The quantitation limits for different matrices were between 5 and 30 MUg/kg, which was satisfactory for surveillance monitoring. The developed method was applied to the analysis of real samples collected from different provinces of China, and 19 out of 348 samples were found to be contaminated, with the highest concentration of approximately 12,000 MUg/kg colistin A and 10,000 MUg/kg colistin B in feed. PMID- 29329841 TI - Effects of radio frequency assisted blanching on polyphenol oxidase, weight loss, texture, color and microstructure of potato. AB - This paper is focused on the effects of radio frequency (RF) heating on the relative activity of polyphenol oxidase (PPO), weight loss, texture, color, and microstructure of potatoes. The results showed that pure mushroom PPO was almost completely inactivated at 80 degrees C by RF heating. The relative activity of potato PPO reduced to less than 10% with increasing temperature (25-85 degrees C). Enzyme extract showed the lowest PPO relative activity at 85 degrees C after RF treatment, followed by the potato cuboids and mashed potato, about 0.19 +/- 0.017%, 3.24 +/- 0.19%, and 3.54 +/- 0.04%, respectively. Circular dichroism analysis indicated that RF heating changed the secondary structure of PPO, as alpha-helix content decreased. Both electrode gap and temperature had significant effect (P < .05) on weight loss, color, and texture of the potato cuboids. Microstructure analysis showed the changes of potato cell and starch during RF heating. PMID- 29329842 TI - Optimization of microwave assisted extraction of Morus nigra L. fruits maximizing tyrosinase inhibitory activity with isolation of bioactive constituents. AB - Morus nigra L. is a beneficial food due to rich phenolic components. While aiming higher yields for bioactive constituents, reduction in terms of raw material, solvent, time and energy gained more importance to provide a sustainable life for human and nature. Microwave assisted extraction (MAE) of Morus nigra fruits was optimized in order to elicit process parameters maximizing bioactive metabolites and tyrosinase inhibitory activity. Spectrophotometry and UPLC-DAD-ESI-MS/MS systems were utilized for quantitative analysis of total phenol, flavonoid and anthocyanin contents. Optimum conditions for MAE were determined as 500 W, 35% ethanol, 10 min yielding 12.63 mg/g cya-3-glu equiv. anthocyanin and IC50 value of 1.60 mg/ml for tyrosinase inhibitory activity. Microwave extracts prevailed better outcomes compared to conventional extraction methods (10.93 mg/g content with IC50 of 2.81 mg/ml). MAE could be considered as an advanced technique to obtain extracts from Morus nigra fruits with higher bioactive content and activity. PMID- 29329843 TI - Partial substitution of NaCl by KCl and addition of flavor enhancers on probiotic Prato cheese: A study covering manufacturing, ripening and storage time. AB - Cheese is a suitable matrix to deliver probiotic strains but it contains a high amount of sodium. The effect of partial substitution of NaCl by KCl and the addition of flavor enhancers (l-arginine, yeast and oregano extract) on probiotic Prato cheese was investigated after 1, 30, and 60 d of refrigerated storage (immediately after manufacturing, and during ripening and storage). Microbiological (lactic acid bacteria and probiotic Lactobacillus casei 01 counts and survival under gastrointestinal conditions), physicochemical (pH, proteolysis, fatty acids), bioactivity (antioxidant effect and angiotensin I converting enzyme inhibitory activity), rheological, and water mobility by means of time domain low-field nuclear magnetic resonance were investigated. Significant changes in probiotic survival were observed; however, the sodium reduction and the addition of flavor enhancers did not constitute an obstacle to L. casei 01 (>108 CFU/g) during storage. Slight changes were observed in proteolysis, bioactivity, water mobility, texture profile, and fatty acids of the cheeses as a function of the flavor enhancer added. The sodium reduction and the supplementation of Prato cheese with probiotic cultures may be an effective alternative to the production of a potentially functional cheese. PMID- 29329844 TI - Use of an isoelectric solubilization/precipitation process to modify the functional properties of PSE (pale, soft, exudative)-like chicken meat protein: A mechanistic approach. AB - The functionality of pale, soft, exudative (PSE)-like chicken protein was improved by isoelectric solubilization/precipitation (ISP) treatment. PSE-like chicken proteins were solubilized at an acidic pH 3.5 or an alkaline pH 11.0, followed by precipitating at pH 5.5 and 6.2. PSE-like meat paste was treated as control (CON). Precipitated at pH 6.2 led to a more elastic gel than at pH 5.5. Water distribution of ISP-isolated protein was affected by precipitation pH. More tryptophan residues exposed and -SH was partially oxidized to disulfide bond after ISP treatment, which led to large aggregates formation and higher viscosity of ISP isolated proteins than of CON. Absolute zeta potential of alkali-treated protein was higher than other counterparts, indicating stronger electric repulsion. ISP treatments could convert alpha-helix structure to relatively irregular structures. Overall, solubilizing at pH 11.0, combined with a precipitation pH 6.2 ISP treatment offers a potential for enhanced functionality of PSE-like chicken protein. PMID- 29329845 TI - Viscoelastic behaviour of masa from corn flours obtained by nixtamalization with different calcium sources. AB - The viscoelastic characteristics of nixtamalized corn masa were assessed by the dynamic oscillatory test. Masa samples were prepared with flours obtained by nixtamalization with different calcium sources: Ca(OH)2 (traditional), wood ashes (classic), CaCO3 (ecological), CaSO4 (ecological), CaCl2 (ecological), and Ca(C2H5COO)2 (ecological). A sample cooking without calcium source was used as control. Storage (G') and loss (G'') moduli were higher in masa from traditional and classic processes indicating a more elastic and viscous masa. Masa of flours from CaCl2 and Ca(C2H5COO)2 had the lowest values of G' and G''. Viscoelastic properties were explained in terms of the degree of starch gelatinization, the hydrolysis of pericarp and fibre content, the calcium-starch and calcium-zein interactions, as well as the presence of amylose-lipid complexes. Nixtamalization with Ca(OH)2 and wood ashes gave the best viscoelastic characteristics of masa. PMID- 29329846 TI - Nutritionally enriched 1,3-diacylglycerol-rich oil: Low calorie fat with hypolipidemic effects in rats. AB - An enzymatic process was developed for the preparation of a nutritionally enriched 1,3-diacylglycerol(DAG)-rich oil from a blend of refined sunflower and rice bran oils. The process involves hydrolysis of vegetable oil blend using Candida cylindracea followed by esterification with glycerol using Lipozyme RM1M. The resultant DAG-rich oil contains 84% of DAG (66% of 1,3-DAG, 18% of 1,2-DAG) and 16% of triacylglycerol (TAG) along with micro nutrients like gamma-oryzanol, tocotrienols, tocopherols and phytosterols. Nutritional studies of the DAG-rich oil were conducted in Wistar rats and compared with sunflower oil (SFO). The calorific value of the DAG-rich oil was estimated to be 6.45 Kcals/g as against 9.25 Kcals/g for SFO. The serum and liver cholesterol and TAG levels in rats fed with 1,3-DAG-rich oil were found to be significantly reduced as compared to rats fed diet containing SFO. We conclude that 1,3-DAG-rich oil is a low calorie fat and exhibits hypolipidemic effects. PMID- 29329847 TI - Encapsulation of anthocyanins from bilberries - Effects on bioavailability and intestinal accessibility in humans. AB - Anthocyanins are flavonoids that have been suggested to provide beneficial health effects. The biological activity of anthocyanins is influenced by their pharmacokinetic properties, but anthocyanins are associated with limited bioavailability in humans. In the presented study, we investigated how the encapsulation of bilberry extract (BE), a source of anthocyanins, with either whey protein or citrus pectin influences the bioavailability and intestinal accessibility of anthocyanins in humans. We performed an intervention study that analyzed anthocyanins and their degradation products in the urine, plasma, and ileal effluent of healthy volunteers and ileostomists (subjects without an intact colon). We were able to show, that whey protein encapsulation modulated short term bioavailability and that citrus pectin encapsulation increased intestinal accessibility during passage through the small intestine and modulated the formation of the degradation product phloroglucinol aldehyde (PGAL) in human plasma. PMID- 29329849 TI - Thermal degradation of chloramphenicol in model solutions, spiked tissues and incurred samples. AB - This study investigated the thermal degradation of a veterinary drug, chloramphenicol, in model solutions (water), as well as in spiked and incurred mussel tissues to understand its fate in the food supply chain. Thermal degradation kinetics followed a first-order model in water (e.g. degradation rate: 0.0018-0.0025 min-1 at 100 degrees C). After 1 h at 100 degrees C, the percentage degradation in spiked tissues (28.1 +/- 7.1%) was significantly different (p < .05) from the values in water (14.2 +/- 1.6%) and incurred mussel tissues (19.0 +/- 4.1%). Using liquid chromatography coupled to high-resolution accurate mass tandem mass spectrometry, the resulting degradation products of chloramphenicol were identified in water, spiked and incurred tissues, and were all different. Therefore, although the use of water models and spiking food samples may provide some information, our data confirm that "incurred models" should be systematically implemented to provide reliable information about veterinary drug residue stability for food safety risk assessments. PMID- 29329848 TI - Utilization of mixed adsorbents to extend frying oil life cycle in poultry processing. AB - The effects were studied of two different adsorbent combinations (com I; bentonite: activated carbon: celite = 3:4:1 and com II; bentonite: activated clay: celite = 3:4:1 + 1% citric acid) on the physico-chemical changes of oil used continuously for deep-fat frying of chicken drumsticks. The results showed that the % FFA was reduced by 44.3, PV by 50.2, and FOS reading by 40.1% in com I whereas reductions of 41.6, 44.9, and 32.8%, respectively, were found in com II. The oil treated with com II exhibited a lighter color than with com I. The changes of oil color in com I were L* 30.7, a* 1.7, and b* 31.9%; in com II they were 53.2, 19.1, and 39.5% respectively. The higher the L* observed, the better the oil quality obtained because of the bleaching ability of adsorbents. Therefore, the use of such adsorbents is recommended for poultry processing. PMID- 29329850 TI - GC-MS profiling, descriptive sensory analysis, and consumer acceptance of Costa Rican papaya (Carica papaya L.) fruit purees. AB - Volatiles of papaya purees from four Costa Rican cultivars were analysed by solid phase microextraction and gas chromatography-mass spectrometry. A total of 83 volatiles was assigned in the purees, of which 19 were detected for the first time as papaya constituents. As revealed by multivariate statistics, i.e., principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA), the purees may be allocated to terpene- and lactone-rich ('SH 5'), ester-containing ('Criolla'), and intermediate chemotypes ('Pococi' and 'Silvestre'). Descriptive sensory analysis and a consumer acceptance test were additionally performed. Floral, fruity, and honey-like notes were perceived at significantly higher intensities in 'SH-5' puree. The latter descriptors strongly correlated with volatiles discriminating 'SH-5' in the PCA and PLS-DA, respectively. Consumer acceptance of the papaya purees differed significantly. 'Pococi' and 'SH-5' purees appear to be suitable for improving the nutritional value of blended fruit juices without impairing their sensory quality. PMID- 29329851 TI - Chemical characterization of Myrciaria floribunda (H. West ex Willd) fruit. AB - M. floribunda fruit was studied to characterize its chemical composition. The chemical composition, bioactive compounds, antioxidant activity and volatiles of the fruit were determined. The chemical composition was determined according to AOAC and AOCS, the bioactive compounds by HPLC, the volatiles by GCMS and the antioxidant activity by ABTS+ and DPPH methods. The chemical composition of the freeze-dried fruit was 1.89 g.100 g-1, 2.43 g.100 g-1, 4.78 g.100 g-1 and 90.89 g.100 g-1 of ashes, lipids, proteins and total carbohydrates on a dry base, respectively. The concentration of the carotenoids was 52.22 mg.100 g-1 and for the flavonoid rutin was 78.56 mg.100 g-1. The gallic and ellagic acid contents were 5.45 mg.g-1 and 2.21 mg.g-1, respectively. The cis-beta-ocimene corresponded to 50.90% of the volatiles. The antioxidant activity by ABTS+ method was 550.14 umol Trolox.g-1 and by the DPPH method the EC50 was 85.68 g.g-1. The fruits presented relevant antioxidant activity, a high concentration of carotenoids and of rutin. PMID- 29329852 TI - An integrated in silico/in vitro approach to assess the xenoestrogenic potential of Alternaria mycotoxins and metabolites. AB - Xenoestrogenic mycotoxins may contaminate food and feed posing a public health issue. Besides the zearalenone group, the Alternaria toxin alternariol (AOH) has been described as a potential mycoestrogen. However, the estrogenicity of Alternaria toxins is still largely overlooked and further data are needed to better describe the group toxicity. In the frame of risk assessment, mixed in silico/in vitro approaches already proved to be effective first-line analytical tools. An integrated in silico/in vitro approach was used to investigate the effects of metabolic and chemical modifications on the estrogenicity of AOH. Among the considered modifications, methylation was found critical for enhancing estrogenicity (as seen for alternariol monomethyl ether (AME)) while hydroxylation and glucuronidation had the opposite effect (as seen for 4-hydroxy AOH and 4-hydroxy AME). The structure-activity relationship analysis provided the structural rationale. Our results provide insights to design more efficient risk assessment studies expanding knowledge over the group toxicity. PMID- 29329853 TI - pH-controlled fermentation in mild alkaline conditions enhances bioactive compounds and functional features of lentil to ameliorate metabolic disturbances. AB - Lentil fermentation has a promising potential as a strategy for development of multifunctional ingredients targeting metabolic syndrome (MetS). Response surface methodology was applied to optimize lentil fermentation and study its effects on generation of peptides, soluble phenolics and bioactivities. Fermentation using Lactobacillus plantarum and Savinase(r) 16 L was carried out at different pH (6.5 8.5) and times (5.5-30 h). Analysis of variance was performed to evaluate linear, quadratic and interaction effects between fermentation parameters. pH positively affected peptides, soluble phenolic compounds and antioxidant activity whereas a negative impact on lipase inhibitory activity was observed (p < .0001). Time showed positive effect on proteolysis and negatively affected angiotensin I converting enzyme inhibitory activity of fermented lentil (p < .0001). Multivariate optimization led to high levels of peptides, soluble phenolics and bioactivity of fermented lentil at pH 8.5 and 11.6 h. In conclusion, this study might contribute to the development of functional ingredients from lentil for MetS management. PMID- 29329854 TI - Enzymatic preparation of "functional oil" rich in feruloylated structured lipids with solvent-free ultrasound pretreatment. AB - In this study, a series of functional oils rich in feruloylated structured lipids (FSLs) was prepared by enzymatic transesterification of ethyl ferulate (EF) with triglycerides under ultrasound pretreatment. A conversion of more than 92.7% and controllable FSLs (3.1%-26.3%) can be obtained under the following conditions: 16% enzyme, substrate ratio 1:5 (oil/EF, mol/mol), 85 degrees C, ultrasound 1 h, pulse mode 3 s/3s (working/waiting), and 17.0 W/mL. Compared to conventional mechanical stirring, the activation energy decreased from 50.0 kJ/mol to 40.7 kJ/mol. The apparent kinetic constant increased by more than 13 times, and the time required for the maximum conversion reduced sharply from 20-60 h to 4-6h, which was the fastest rate for enzymatic synthesis of FSLs. The antioxidant activities of the functional oil significantly increased 1.0- to 8.1-fold more than that of the raw oil. The functional oil could be widely applied in various fields of functional foods. PMID- 29329855 TI - Production of three types of krill oils from krill meal by a three-step solvent extraction procedure. AB - In this study, a three-step extraction method (separately use acetone, hexane, and ethanol as extraction solvent in each step) was conducted to selectively extract three types of krill oils with different compositions. The lipid yields were 5.08% in step 1, 4.80% in step 2, and 9.11% in step 3, with a total of 18.99%. The krill oil extracted with acetone in step 1 (A-KO) contained the lowest contents of phospholipids (PL) (2.32%) and n-3 polyunsaturated fatty acids (PUFA) (16.63%), but the highest levels of minor components (505.00 mg/kg of astaxanthin, 29.39 mg/100 g of tocopherols, 34.32 mg/100 g of vitamin A and 27.95 mg/g of cholesterol). By contrast, despite having traces of minor components, the krill oil extracted using ethanol in step 3 (E-KO) was the most abundant in PL (59.52%) and n-3 PUFA (41.74%). The krill oil extracted using hexane in step 2 (H KO) expressed medium contents of all the testing indices. The oils showed significant differences in the antioxidant capacity (E-KO > H-KO > A-KO) which exhibited positive correlation with the PL content. These results could be used for further development of a wide range of krill oil products with tailor-made functions. PMID- 29329856 TI - Effect of tyrosinase-aided crosslinking on the IgE binding potential and conformational structure of shrimp (Metapenaeus ensis) tropomyosin. AB - The present study was performed to determine crosslinking and oxidative reactions catalyzed by tyrosinase (Tyr), caffeic acid (CA) and their combination with respect to IgE binding potential and conformational structure of shrimp tropomyosin (TM). Cross-links and IgE binding potentials were analyzed by SDS PAGE, western blot and indirect ELISA. While structural changes were characterized using surface hydrophobicity, ultraviolet (UV), fluorescence and circular dichroism (CD) spectroscopies. Maximum reduction in the IgG (37.19%) and IgE binding potentials (49.41%) were observed when treated with 2000 nkat/g Tyr + CA, as indicated by ELISA analyses. These findings correlated well with the denaturation of protein, as evident by slight blue shift and alterations in the ellipticities observed via structural analyses. The results demonstrated that addition of CA mediator with Tyr pronouncedly enhanced crosslinking, and altered the conformational structure, thereby mitigated allergenicity of TM, thus showing promise in developing novel food structures with reduced allergenic potential. PMID- 29329857 TI - Meat species identification using DNA-luminol interaction and their slow diffusion onto the biochip surface. AB - Recently, there has been a growing concern of consumers on the authenticity of food ingredients including adulteration with porcine and/or its derivatives. Therefore, this work reports on the development of a novel, simple, sensitive and rapid luminol-based electrochemiluminescence (ECL) technique for Sus scrofa (Porcine) DNA detection. Porcine DNA was firstly amplified using loop-mediated isothermal amplification (LAMP) method and subsequently added to luminol solution for further ECL analysis for quantification. The DNA-luminol complexes were formed causing the diffusion of luminol towards the electrode surface to be slowed down and hindered that resulted in low luminol intensity. The LAMP-ECL sensor is shown to be highly specific, sensitive (>=0.1 pg/MUL) and rapid (~5 min for detection). Hence, by employing this principle with carbon screen-printed electrode (SPE), this technique has a potential to be developed further into a compact biosensor for the verifying food authenticity. PMID- 29329858 TI - Mechanical wheat flour modification and its effect on protein network structure and dough rheology. AB - Mechanical flour modification is frequently associated with a reduced bread volume due to changed structural and functional properties of protein and starch. To clarify the effect of mechanical flour treatment on the protein network formation at the optimum kneading time (Peaktime), dough was produced with various mechanical starch modification (MSM) levels and visualized by confocal laser scanning microscope before being characterized by protein network analysis (PNA). Dough produced with high MSM showed a reduced branching rate (-14%), a high end-point rate (+25%) and an increased lacunarity (+139%), indicating a poor network connectivity with network interruptions. Alterations of the protein microstructure were closely related to the rheological dough properties. In this regard, reduced extensibility and resistance to extension of dough produced with high MSM levels were responsible for decreased dough height (Hm) during fermentation and thus might be the cause for lower baking volume of bread produced with high MSM. PMID- 29329859 TI - Effect of high pressure on structural modifications and enzymatic activity of a purified X-prolyl dipeptidyl aminopeptidase from Streptococcus thermophilus. AB - PepX aminopeptidase from Streptococcus thermophilus ACA DC 0022, used in Greek Feta cheese manufacturing, was purified. PepX comprises two subunits of equal molecular mass estimated, using SDS-PAGE and native-PAGE electrophoresis, to be 86 kDa. The effects of high pressure processing (100-450 MPa, combined with 20-40 degrees C) on purified PepX activity and structure were studied. Activation of the enzyme was observed after processing at 100-200 MPa and 20-30 degrees C. More intense processing conditions led to enzyme inactivation. PepX HP-induced conformational changes were also investigated through application of Circular Dichroism spectroscopy (CD). Pressures up to 200 MPa resulted in a structurally molten globule-like state where PepX maintained its secondary structure but the tertiary structure was substantially affected and enzyme activity increased. Both secondary and tertiary structures were affected severely by higher pressures (450 MPa), which reduced enzyme activity. PMID- 29329860 TI - Ethyl carbamate: An emerging food and environmental toxicant. AB - Ethyl carbamate (EC), a chemical substance widely present in fermented food products and alcoholic beverages, has been classified as a Group 2A carcinogen by the International Agency for Research on Cancer (IARC). New evidence indicates that long-term exposure to EC may cause neurological disorders. Formation of EC in food and its metabolism have therefore been studied extensively and analytical methods for EC in various food matrices have been established. Due to the potential threat of EC to human health, mitigation strategies for EC in food products by physical, chemical, enzymatic, and genetic engineering methods have been developed. Natural products are suggested to provide protection against EC induced toxicity through the modulation of oxidative stress. This review summarizes knowledge on the formation and metabolism of EC, detection of EC in food products, toxic effects of EC on various organs, and mitigation strategies including prevention of EC-induced tumorigenesis and genotoxicity by natural products. PMID- 29329861 TI - In situ characterization of acidic and thermal protein denaturation by infrared microspectroscopy. AB - Foods meet acid pH during gastric digestion after cooking. An in situ infrared microspectroscopy approach was developed to detect the effects of heat and acid treatments on protein structure separately. Infrared spectra were obtained from meat samples treated with heat and/or acid, and wavenumbers accounting independently for the treatments were extracted by principal component regression. Extreme-acid treatment (pHinitial 2.0) was well predicted (0.5% error) by a simple ratio of as-observed spectral intensities at 1211 and 1396 cm 1, reflecting a perturbation in the vibration of amino acid residues (phenylalanine, tyrosine and aspartic acid) by protein unfolding and protonation. Using the imaging mode of an IR microscope, meat protein acidification was evidenced with high spatial resolution. The heat effect was well discriminated from the acid effect by the ratio of as-observed intensities at 1666 and 1697 cm 1 (0.9% error), indicating content of aggregated beta-sheets relative to alpha helix structure. PMID- 29329862 TI - Active compounds, antioxidant activity and alpha-glucosidase inhibitory activity of different varieties of Chaenomeles fruits. AB - Chaenomeles is an important source for food industry in China, and its planting area is expanding year by year. This study was conducted to evaluate different varieties of Chaenomeles by comparing the chemical compositions, antioxidant activity and alpha-glucosidase inhibitory activity of peels and fleshes from twelve varieties of Chaenomeles. In the results, peels of Chaenomeles contain more phenolics, flavonoids and triterpenes, and show better antioxidant activity and alpha-glucosidase inhibitory activity than their fleshes. All varieties of Chaenomeles perform different depend on cultivar and climatic conditions. Oleanolic acid, ursolic acid, protocatechuic acid, rutin, catechin, caffeic acid, syringic acid, epicatechin, hyperin, quercetin, kaempferol and chlorogenic acid are main active compounds in Chaenomeles. Zheng'an, Liufu, Zimugua1, Qijiang and Changjun get Top five scores. This is the first study on the peels and fleshes of twelve varieties of Chaenomeles, and it gives insights into variety selection in the planting and production of Chaenomeles. PMID- 29329863 TI - Preparation of gentiooligosaccharides using Trichoderma viride beta-glucosidase. AB - The recombinant plasmid pPIC9K-bgl1 containing beta-glucosidase bgl1 from Trichoderma viride was constructed by overlapping PCR and integrated into Pichia pastoris KM71. In order to assist the formation of disulfide bonds and thus improve protein folding efficiency, protein disulfide isomerase pdi was co expressed in the P. pastoris KM71/pPIC9K-bgl1/pPICZ-A-pdi strain, and fermentation in flasks resulted in enzyme activity of 143 U/ml. The enzyme activity of beta-glucosidase reached 1402 U/ml following optimisation of fermentation conditions in a 3.6 l bioreactor. With 80% glucose as substrate, gentiooligosaccharides were synthesised by beta-glucosidase-based reverse hydrolysis. A yield of 130 g/l was achieved with a conversion rate of 16.25%. With 20% glucose and 40% cellobiose as substrates, gentiooligosaccharides were synthesised by transglycosylation with a yield of 116 g/l and a conversion rate of 19.4%. PMID- 29329864 TI - Antioxidant and anti-freezing peptides from salmon collagen hydrolysate prepared by bacterial extracellular protease. AB - Extracted salmon skin collagen was hydrolysed with the free or immobilized extracellular protease of Vibrio sp. SQS2-3. The hydrolysate exhibited anti freezing activity (>3 kDa) and antioxidant activity (<3000 Da) after ultrafiltration. The antioxidant peptide was further purified by size-exclusion chromatography and found to scavenge DPPH (73.29 +/- 1.03%), OH (72.73 +/- 3.34%,), and intracellular ROS in HUVECs; protect DNA against oxidation-induced damage; and have an ORAC of 2.78 +/- 0.28 mmol TE/g. The antioxidant peptide fraction was identified using mass spectrometry, and nineteen salmon collagen sourced peptides were obtained. Of these, the peptide Pro-Met-Arg-Gly-Gly-Gly-Gly Tyr-His-Tyr is a novel sequence and was the major component; this peptide was shown to have antioxidant activity via the ORAC assay (2.51 +/- 0.14 mmol TE/g). These results suggested that the protease from Vibrio sp. SQS2-3 is suitable for preparation of anti-freezing peptides and antioxidant peptides in a single step and represents a comprehensive use of fish skin collagen. PMID- 29329865 TI - In vitro evaluation of dietary compounds to reduce mercury bioavailability. AB - Mercury in foods, in inorganic form [Hg(II)] or as methylmercury (CH3Hg), can have adverse effects. Its elimination from foods is not technologically viable. To reduce human exposure, possible alternatives might be based on reducing its intestinal absorption. This study evaluates the ability of 23 dietary components to reduce the amount of mercury that is absorbed and reaches the bloodstream (bioavailability). We determined their effect on uptake of mercury in Caco-2 cells, a model of intestinal epithelium, exposed to Hg(II) and CH3Hg standards and to swordfish bioaccessible fractions. Cysteine, homocysteine, glutathione, quercetin, albumin and tannic reduce bioavailability of both mercury species. Fe(II), lipoic acid, pectin, epigallocatechin and thiamine are also effective for Hg(II). Some of these strategies also reduce Hg bioavailability in swordfish (glutathione, cysteine, homocysteine). Moreover, extracts and supplements rich in these compounds are also effective. This knowledge may help to define dietary strategies to reduce in vivo mercury bioavailability. PMID- 29329866 TI - Corrigendum to "Effects of chemical composition and baking on in vitro digestibility of proteins in breads made from selected gluten-containing and gluten-free flours" [Food Chem. 233 (2017) 514-524]. PMID- 29329867 TI - Corrigendum to "Characterization and screening of pyrrolizidine alkaloids and N oxides from botanicals and dietary supplements using UHPLC-high resolution mass spectrometry" [Food Chem. 178 (2015) 136-148]. PMID- 29329868 TI - A procedure for the measurement of Oxygen Consumption Rates (OCRs) in red wines and some observations about the influence of wine initial chemical composition. AB - The rates at which wine consumes oxygen are important technological parameters for whose measurement there are not accepted procedures. In this work, volumes of 8 wines are contacted with controlled volumes of air in air-tight tubes containing oxygen-sensors and are further agitated at 25 degrees C until O2 consumption is complete. Three exposure levels of O2 were used: low (10 mg/L) and medium or high (18 or 32 mg/L plus the required amount to oxidize all wine SO2). In each oxygen level, 2-4 independent segments following pseudo-first order kinetics were identified, plus an initial segment at which wine consumed O2 very fast. Overall, multivariate data techniques identify six different Oxygen Consumption-Rates (OCRs) as required to completely define wine O2 consumption. Except the last one, all could be modeled from the wine initial chemical composition. Total acetaldehyde, Mn, Cu/Fe, blue and red pigments and gallic acid seem to be essential to determine these OCRs. PMID- 29329869 TI - A new equation for converting the parameter EC50 into the total antioxidant capacity TEAC and vice versa. AB - A new equation for converting EC50 into TEAC values and TEAC into EC50 is presented in this paper. The model was fitted to 180 data points of electron paramagnetic resonance (EPR) spectroscopy measurements of various food products. The model was tested basing on 75 EPR spectroscopy measurements. Moreover, the equation was tested on literature data. The determination coefficient between EC50cal and EC50exp was found to be R2 = 0.9762, while the determination coefficient between TEACcal and TEACexp was found to be R2 = 0.9686. Based on obtained results it can be concluded that the proposed model for converting EC50 into TEAC values and TEAC into EC50 values works properly. This will enable a comparison of the antioxidant properties of products identified in literature through the use of different parameters (TEAC, EC50). PMID- 29329870 TI - 16-O-methylcafestol is present in ground roast Arabica coffees: Implications for authenticity testing. AB - High-field and low-field proton NMR spectroscopy were used to analyse lipophilic extracts from ground roast coffees. Using a sample preparation method that produced concentrated extracts, a small marker peak at 3.16 ppm was observed in 30 Arabica coffees of assured origin. This signal has previously been believed absent from Arabicas, and has been used as a marker for detecting adulteration with robusta. Via 2D 600 MHz NMR and LC-MS, 16-O-methylcafestol and 16-O methylkahweol were detected for the first time in Arabica roast coffee and shown to be responsible for the marker peak. Using low-field NMR, robusta in Arabica could be detected at levels of the order of 1-2% w/w. A surveillance study of retail purchased "100% Arabica" coffees found that 6 out of 60 samples displayed the 3.16 ppm marker signal to a degree commensurate with adulteration at levels of 3-30% w/w. PMID- 29329871 TI - Isolation of proanthocyanidins from red wine, and their inhibitory effects on melanin synthesis in vitro. AB - The red wines made from Vitis vinifera were identified as skin-whitening effectors by using in vitro assays. OPCs in the wine were evaluated for tyrosinase activity and melanogenesis. Strong tyrosinase inhibitory activity was observed in fractions with high oligomeric proanthocyanidin (OPC) content. Among OPC dimers, a strong inhibitory effect on tyrosinase was observed with OPCs which contain (+)-catechin as an upper unit. Melanogenesis inhibitory effect was observed with OPCs which have (-)-epicatechin as upper units. Also, OPC trimers, upper and middle units joined with 4 -> 8 bonds, showed stronger effects compared to trimers with 4 -> 6 linkages. Interestingly, (-)-epicatechin-(4beta -> 8)-(-) epicatechin 3-O-gallate, which is a unique component of grapes has potent inhibitory effects on both tyrosinase and melanogenesis. Our data provide structural information about such active compounds. These results suggest that red wines containing OPC, have high melanogenesis inhibitory effect and are supposed to have skin-whitening effect. PMID- 29329872 TI - Development and validation of a HILIC-UV method for the determination of nucleotides in fish samples. AB - The aim of this work was the development of a simple, novel and accurate method for the determination of adenosine triphosphate (ATP) and its first five catabolites: adenosine diphosphate (ADP), adenosine monophosphate (AMP), inosine monophosphate (IMP), inosine (Ino) and hypoxanthine (Hx), in fish tissue, based on hydrophilic interaction liquid chromatography (HILIC). For this purpose, a stationary phase for polar and hydrophilic compounds (ZIC-pHILIC) was used. The effect of different chromatographic parameters and the molecular mechanism based on the van't Hoff plot were examined. The t-test and Dixon's Q-test were applied in order to examine statistical differences and outlier values. The recovery of the method ranged between 82.7% and 127% and the %RSD values were lower than 10% for all analytes determined. The method was applied in frozen sea bream samples stored at 0-4 degrees C. The Ki-, G-, H- and F values were calculated for the estimation of the level of fish freshness. PMID- 29329873 TI - Preparation and characterization of citral-loaded solid lipid nanoparticles. AB - Citral-loaded solid lipid nanoparticles (citral-SLNs) were prepared via a high pressure homogenization method, using glyceryl monostearate (GMS) as the solid lipid and a mixture of Tween 80 (T-80) and Span 80 (S-80) at a weight ratio of 1:1 as the surfactant. The microstructure and properties of the citral-SLNs were characterized by dynamic light scattering (DLS), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and thermal gravimetric analysis (TGA). The chemical stability of citral in the citral-SLNs was analyzed by solid phase microextraction gas chromatography (SPME-GC). The GC results showed that 67.0% of the citral remained in the citral-SLN suspensions after 12 days, while only 8.22% remained in the control. Therefore, the encapsulation of citral in the solid lipid can enhance its stability in acidic surroundings. PMID- 29329874 TI - A survey of free glutamic acid in foods using a robust LC-MS/MS method. AB - An effective and simultaneous liquid chromatography-tandem mass spectrometry (LC MS/MS) method was used with the aim of quantifying monosodium glutamate (MSG) in foodstuffs, such as chips, taste cubes, sauces and soups. The results were linear (R2 = 1), with very low LOD and LOQ values, 1.0 ug/kg, 5.0 ug/kg, respectively. Excellent repeatability and reproducibility were also achieved. This highly sensitive and robust LC-MS/MS technique was applied successfully for the detection and quantification of MSG in a wide variety of foodstuffs. MSG contents ranged from 0.01 g/100 g to 15.39 g/100 g in food samples. Importantly, determination of free glutamic acid in the daily diet could also prevent various side effects associated with consumption of excess free glutamic acid. PMID- 29329875 TI - Hydrolysers of modified mycotoxins in maize: alpha-Amylase and cellulase induce an underestimation of the total aflatoxin content. AB - Aflatoxins are the most potent genotoxic and carcinogenic mycotoxins. To date, research has only focused on the presence of free aflatoxins in agricultural commodities. Therefore, the main objective of this study was to investigate the occurrence of possible modified aflatoxins in maize. Different hydrolysis methods were applied to convert modified mycotoxins into their free aflatoxins. Eighteen aflatoxin-contaminated maize samples were incubated with potassium hydroxide, trifluoromethanesulfonic acid and several enzymes to induce hydrolysis. Potassium hydroxide caused a total reduction of aflatoxins, while trifluoromethanesulfonic acid did not lead to an increase in free aflatoxins, neither did treatment with a protease. However, alpha-amylase and cellulase incubation caused significant increases in the total free aflatoxin content, 15 +/- 8% and 13 +/- 5%, respectively. These results show that a small proportion of aflatoxins could be associated to matrix substances in plants. Consequently, hydrolysis could occur during food processing and during mammalian digestion, leading to an underestimation of the total aflatoxin content. PMID- 29329876 TI - Discrimination of processing grades of olive oil and other vegetable oils by monochloropropanediol esters and glycidyl esters. AB - In this study, the processing derived contaminants 2- and 3-monochloropropanediol (2- and 3-MCPD) esters and glycidyl esters (GEs) were analysed in 84 oil samples by GC-MS/MS for the discrimination of processing grades of olive oils as a potential authentication tool. Concentrations of 2- and 3-MCPD esters and GEs varied in the ranges 0-6 mg/kg, 0-1.5 mg/kg, and 0-1 mg/kg oil, respectively. The concentrations of the three compounds in lower grade olive oils were significantly higher (P < .001) than that in EVOO. A similar difference was observed for other refined and cold-pressed vegetable oils. The limit of fraud detection of lower grade oils in EVOO was 2% when using 3-MCPD esters, 5% for 2 MCPD esters, and 13-14% for GEs based on calculations of virtual mixtures of the current sample set. Especially the MCPD esters appear very specific and promising for the detection of lower processing grade oils in EVOO. PMID- 29329877 TI - [Attitudes towards cow's milk protein allergy management by spanish gastroenterologist]. AB - INTRODUCTION: Food allergy is an increasing health problem in the developed world. Cow's milk protein is the main cause of food allergy in infants. Without an appropriate diagnostic workup, there is a high risk of both over- and underdiagnosis and therefore, over and undertreatment. The objective of our study was to analyze the variability in cow's milk protein allergy (CMPA) management by pediatric gastroenterologists in Spain. METHODS: A fifty item questionnaire, including open and closed items in a Likert's scale from 0 to 5, was drafted and distributed through the Spanish Society for Pediatric Gastroenterology, Hepatology and Nutrition (SEGHNP) e-mail list. RESULTS: Seventy-three questionnaires were received back out of 321. Only 3 of the items achieved concordance greater than 90%. Thirty-three percent considered oral challenge to be necessary for the diagnosis of CMPA under any circumstance. Twenty-five percent considered that symptom improvement after cow's milk removal was enough for the diagnosis. Oral challenge was performed at home by 83.5% in non-IgE mediated cases. Extensively hydrolyzed casein formulas were the treatment of choice for 69.9%. Soy formulas were the last option. Almost all respondents were aware of the existence of clinical guidelines on CMPA, being European Society of Pediatric Gastroenterology, Hepatology and Nutrition guidelines the most followed (64.4%). Twenty-three percent considered that their knowledge about allergy was inadequate. CONCLUSIONS: Although CMPA is a prevalent condition that pediatric gastroenterologists have been treating for decades, we found a huge variability on its management. There is potential for improvement in this field among pediatric gastroenterologist in the future. PMID- 29329878 TI - Course-, dose-, and stage-dependent toxic effects of prenatal dexamethasone exposure on fetal articular cartilage development. AB - Dexamethasone, a synthetic long-acting glucocorticoid, is routinely used for treating mothers at risk for preterm delivery. However, intrauterine overexposure to glucocorticoids induces low birth weight and cartilage dysplasia in offspring. Also, the "critical window" and safe dose of this treatment are largely unknown. This study investigated the course-, dose-, and stage-dependent toxic effects and the possible mechanisms of prenatal dexamethasone exposure (PDE) on fetal development and articular cartilage development. Pregnant mice (C57BL/6) received subcutaneous injection of dexamethasone (0.8 mg/kg d) once on gestational day (GD) 15 or once a day from GD 15 to 17, or received various doses of dexamethasone (0, 0.2, 0.8, and 1.2 mg/kg d) on GD 15-17, or received dexamethasone (0.8 mg/kg d) at early stage (GD 12-14) or late stage of pregnancy (GD 15-17). Offspring's knee joints were harvested at birth for morphological analyses and detection of gene expression. Repeated PDE significantly suppressed fetal and articular cartilage development, which were characterized by decreased body weight and body length, coarse articular cartilage surfaces, and reduced gene and protein expression of Col2a1 and aggrecan. For those newborns treated with repeated PDE at different doses, the toxic effects on fetal and articular cartilage development were observed at doses of 0.8 and 1.2 mg/kg d, whereas no obvious toxic effects were observed at the dose of 0.2 mg/kg d. Moreover, PDE at 0.8 mg/kg d during the early embryonic stage induced stronger toxic effects on fetal and articular cartilage development, compared with PDE during the late embryonic stage. Detection of gene expression showed that the TGFbeta signaling pathway in the articular cartilage was down-regulated after PDE. Taken together, PDE induces fetal developmental toxicity and articular cartilage developmental toxicity in a course-, dose-, and stage-dependent manner. PMID- 29329879 TI - MiR-134 modulates chronic stress-induced structural plasticity and depression like behaviors via downregulation of Limk1/cofilin signaling in rats. AB - Increasing evidence has suggested that depression is a neuropsychiatric condition associated with neuroplasticity within specific brain regions. However, the mechanisms by which neuroplasticity exerts its effects in depression remain largely uncharacterized. In the present study we show that chronic stress effectively induces depression-like behaviors in rats, an effect which was associated with structural changes in dendritic spines and synapse abnormalities within neurons of the ventromedial prefrontal cortex (vmPFC). Moreover, unpredictable chronic mild stress (UCMS) exposure significantly increased the expression of miR-134 within the vmPFC, an effect which was paralleled with a decrease in the levels of expression and phosphorylation of the synapse associated proteins, LIM-domain kinase 1 (Limk1) and cofilin. An intracerebral infusion of the adenovirus associated virus (AAV)-miR-134-sponge into the vmPFC of stressed rats, which blocks mir-134 function, significantly ameliorated neuronal structural abnormalities, biochemical changes and depression-like behaviors. Chronic administration of ginsenoside Rg1 (40 mg/kg, 5 weeks), a potential neuroprotective agent extracted from ginseng, significantly ameliorated the behavioral and biochemical changes induced by UCMS exposure. These results suggest that miR-134-mediated dysregulation of structural plasticity may be related to the display of depression-like behaviors in stressed rats. The neuroprotective effects of ginsenoside Rg1, which produces an antidepressant like effect in this model of depression, appears to result from modulation of the miR 134 signaling pathway within the vmPFC. PMID- 29329880 TI - Novel expression of CD11b in epithelial ovarian cancer: Potential therapeutic target. AB - OBJECTIVE: The objective of this study was to determine the expression, and effect of targeting CD11b with a monoclonal antibody in ovarian cancer cells. METHODS: CD11b expression was determined in epithelial ovarian cancer (EOC) cell lines and tissues by immunofluorescence and flow cytometry. Cytotoxicity of the CD11b antibody and synergism with chemothearapeutic drugs were determined by the MTT Cell Proliferation Assay in human macrophages, normal ovarian epithelial cells, and in both sensitive and chemoresistant EOC cell lines. Cell migration was assessed with a scratch assay and in vivo effects of the CD11b antibody was assessed with a nude mouse ovarian cancer xenograft model. Data was analyzed with either t-tests or one-way ANOVA. RESULTS: CD11b was unexpectedly expressed in several EOC lines and tissues, but not normal tissues. Targeting CD11b with its monoclonal antibody resulted in intriguing cytotoxic effects in sensitive and chemoresistant EOC lines, while surprisingly not affecting normal cells. More importantly, the cytotoxicity of the CD11b antibody when combined with chemotherapeutic drugs (cisplatin or docetaxel) was significantly synergistic, in both sensitive and chemoresistant EOC cells. The anti-tumorigenic effect of the CD11b antibody was confirmed in an ovarian cancer nude mouse xenograft model. CONCLUSION: Here we identify CD11b as a novel target, which selectively induces cytotoxicity in ovarian cancer cells. PMID- 29329881 TI - Defining and mitigating the challenges of an older and obese population in minimally invasive gynecologic cancer surgery. AB - The incidence of endometrial cancer (EC) is steadily increasing due in large part to an aging world population and rise in rates of obesity. Patients with obesity and advancing age can be seen as vulnerable populations, as they are both often subject to physician bias regarding surgical choices and assumptions regarding long-term outcomes. As we operate on an older and/or obese patient population, it is increasingly important that we adopt peri-operative management strategies and surgical techniques to best serve this complex patient population. Careful orchestration pre-, intra- and postoperatively is key to successful outcomes in robotic and laparoscopic surgery. Here, we review existing literature regarding EC in women with older age and/or obesity, outline recommendations for peri operative management and common intra-operative issues-specifically common anesthetic issues surrounding cardiovascular, respiratory and neuromuscular systems-that are of heightened importance in women with older age and/or obesity. The goal of this review is to help define and mitigate common complications for these vulnerable patients with an EC diagnosis who, in accordance with carefully assessed health risks, can and should be offered standard of care surgery and treatment. PMID- 29329882 TI - Prognostic significance of residual lymph node status after definitive chemoradiotherapy in patients with node-positive cervical cancer. AB - OBJECTIVE: Lymph node involvement is an important prognostic factor in patients with cervical cancer. However, the prognostic significance of lymph node response to chemoradiotherapy remains unclear. We retrospectively analyzed the relationship between residual lymph node status after definitive chemoradiotherapy and survival. METHODS: We enrolled 117 patients with node positive cervical cancer. All patients were treated with definitive chemoradiotherapy in our institution, from 2006 to 2016. The median follow-up period was 41months (range, 6-128months). The criterion for a positive lymph node was defined as a maximum short axis diameter of >=8mm on pretreatment magnetic resonance imaging (MRI)/computed tomography (CT) scans. Posttreatment pelvic MRI was obtained 3months after the completion of chemoradiotherapy. Residual primary tumor was defined as any residual lesion identified upon clinical examination and/or MRI. Residual lymph node was defined as any lymph node with a short axis diameter of >=8mm posttreatment, according to MRI/CT. RESULTS: At follow-up, 3months after chemoradiotherapy, we observed residual primary tumor in 30 patients (25.6%), and residual lymph node in 31 patients (26.5%). The presence of residual lymph node was associated with worse overall survival according to multivariate analysis (hazard ratio, 3.04; 95% confidence interval, 1.43-6.44; p=0.004). In the 5-year time-dependent ROC analysis of survival prediction, the presence of residual lymph node showed an AUC value of 0.72. CONCLUSIONS: The presence of residual lymph node after chemoradiotherapy was associated with worse survival in patients with node-positive cervical cancer. PMID- 29329883 TI - Oxidation, Damage Mechanisms, and Reasons for Revision of Sequentially Annealed Highly Crosslinked Polyethylene in Total Knee Arthroplasty. AB - BACKGROUND: Sequentially annealed, highly crosslinked polyethylene (HXLPE) has been used clinically in total knee arthroplasty (TKA) for over a decade. However, little is known about the revision reasons; its surface damage mechanisms; or its in vivo oxidative stability relative to conventional polyethylene. We asked whether retrieved HLXPE tibial inserts exhibited: (1) similar revision reasons; (2) improved resistance to surface damage; and (3) improved oxidative stability, when compared with conventional gamma inert sterilized polyethylene inserts. METHODS: A total of 456 revised tibial inserts were collected in a multicenter retrieval program between 2000 and 2016. The implantation time for the HXLPE components was 1.8 +/- 1.8 years, and for the control inserts it was 3.4 +/- 2.7 years. Revision reasons were assessed based on medical records, radiographs, and examinations of the retrieved components. Surface damage was assessed using a semi-quantitative scoring method. Oxidation was measured using Fourier transform infrared spectroscopy. RESULTS: The tibial inserts in both cohorts were revised most frequently for loosening, infection, and instability. The most commonly observed surface damage modes were burnishing, pitting, and scratching. Oxidation of the HXLPE inserts was, on average, low and similar to the control inserts at the bearing surface and the stabilizing post. CONCLUSIONS: We observed evidence of in vivo oxidation in both HXLPE and control tibial inserts. We found no association between the levels of oxidation and the clinical performance of the HXLPE tibial components. The findings of this study document the revision reasons, surface damage modes, and oxidative behavior of sequentially annealed HXLPE for TKA. PMID- 29329884 TI - Impurity profiling of drug candidates: Analytical strategies using reversed-phase and mixed-mode high-performance liquid chromatography methods. AB - The development of new active pharmaceutical ingredients (API) requires accurate impurity profiling. Nowadays, reversed-phase HPLC (RPLC) on C18 stationary phase is the method of first choice for this task and usually employed in generic screening methods. However, this method sometimes fails, especially when the target analyte is not sufficiently retained, making impurity analysis difficult or even impossible. In such cases, a second method must be available. In the present paper, we compare the merits of RPLC on C18 phase to those of previously optimized alternative methods, based on the analysis of a large and diverse set of small-molecule drug candidates. Various strategies are considered: RPLC on C18 phase but with different mobile phase composition (acidic or basic), RPLC with a pentafluorophenyl stationary phase, or mixed-mode HPLC with both bimodal and trimodal stationary phases. First, method performances were compared in terms of response rate (proportion of compounds eluted) and peak shapes for a large set of synthetic drugs (140) with structural diversity and their orthogonality was evaluated. Then a subset of compounds (25) containing varied impurity profiles was used to compare the methods based on the capability to detect impurities and evaluate the relative purity of the API. PMID- 29329885 TI - InnOscent system: Advancing flavor analysis using an original gas chromatographic analytical device. AB - Despite continuous advances in analytical and physiological knowledge, the comprehension of an aroma is still a challenge. Gas chromatography coupled to olfactometry (GC-O) is an efficient method to identify and estimate individual potential of odorants, but there is a gap between this individual characterization and the effective contribution of compounds in the mixture, which is due to complex chemical and perceptual interactions. Therefore, recombination and omission experiments are often performed to achieve an understanding of food aromas. In this study, a chromatographic device, developed to facilitate aroma analysis, is presented. It was configured to perform both (1) conventional analyses by GC coupled with a mass spectrometer, olfactometric port(s), and a flame ionization detector (FID), and (2) omission or recombination experiments. This dual capability is due to the singular configuration of the system using an ingenious combination of splitter and Deans switch microfluidics transfer modules, and the existence of multiple outlets. The operational status of the system was tested using a purposely simple mixture of compounds. The similarity of retention times (RT) and FID peak areas obtained for each outlet demonstrates that the multiple outlets of the system are equivalent. The reproducibility of retention times (RT) and FID peak areas obtained in switching and non-switching conditions, also demonstrates the efficiency of switching operations. The validation of the system enables multiple detectors to be connected to the outlets and complementary information can be obtained from the eluate. The connection of recovery disposals to the outlets provides fraction collection and recombination possibilities, which contribute much to the understanding of aroma-aroma interactions. As an illustration of the InnOscent system relevance for the comprehension of more complex aromas, the device was used to study the aroma of a wine made from Cabernet Franc grape variety. An olfactometric profile was efficiently produced with the device configured as a GC MS coupled to a dual olfactometric port. The main odorant active compounds were identified. The omission approach, carried out with the system on isopropyl- and isobutyl-methoxypyrazines, demonstrates the significant contribution of these compounds to the aroma of the wine studied, despite an individual perception among the weakest of the aromagram. A similar approach can be used to evaluate the contribution of any compound to any aroma. This approach overcomes constraints of current methodologies associated to reconstituted model solutions and paves the way for a better understanding of aroma construction. PMID- 29329886 TI - Solid-phase extraction of chlorophenols in seawater using a magnetic ionic liquid molecularly imprinted polymer with incorporated silicon dioxide as a sorbent. AB - A type of magnetic ionic liquid based molecularly imprinted polymer coated on SiO2 (Fe3O4@SiO2@IL-MIPs) was prepared with 1-vinyl-3-ethylimidazole ionic liquid as functional monomer, and 1,4-butane-3,3'-bis-1-ethylimidazole ionic liquid as cross linker, 4-Chlorophenol as template was successfully applied as a selective adsorbent for selective extraction of 5 chlorophenols in seawater samples by using the magnetic solid-phase extraction (MSPE) method. 11 types of Fe3O4@SiO2@IL-MIPs were synthesized and investigated for their different compositions of functional monomer (such as [C2min][Br], [C2min][BF4], [C2min][PF6], acrylamide, methacrylic acid and 4-vinyl pyridine) and cross-linker (such as [C4min2][Br], [C4min2][BF4], [C4min2][PF6], divinylbenzene, and ethylene glycol dimethacrylate), respectively. The [C2min][BF4] and [C4min2][PF6] based Fe3O4@SiO2@IL-MIP with the highest extraction efficiencies was applied to the optimization experiment of MSPE process (including extraction time, adsorbent mass and desorption solvents). Good linearity was obtained with correlation coefficients (R2) over 0.9990 and the relative standard deviations for the intra day and inter-day determination were less than 3.10% with the extraction recoveries ranged from 85.0% to 98.4%. The results indicated that the proposed Fe3O4@SiO2@IL-MIPs possesses great identification and adsorption properties, and could be used as a good sorbent for selective extraction of CPs in environment waters. PMID- 29329887 TI - Determination of N-glycans by high performance liquid chromatography using 6 aminoquinolyl-N-hydroxysuccinimidyl carbamate as the glycosylamine labeling reagent. AB - Robust, efficient identification and accurate quantification of N-glycans are of great significance in N-glycomics analysis. Here, a simple and rapid derivatization method, based on the combination of microwave-assisted deglycosylation and 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) labeling, was developed for the analysis of N-glycan by high performance liquid chromatography with fluorescence detection (HPLC-FLD). After optimizing various parameters affecting deglycosylation and derivatization by RNase B, the time for N-glycan labeling was shortened to 50 min with ~10-fold enhancement in detection sensitivity comparing to conventional 2-aminobenzoic acid (2-AA) labeling method. Additionally, the method showed good linearity (correlation coefficients > 0.991) and reproducibility (RSD < 8.7%). These advantages of the proposed method were further validated by the analysis of complex samples, including fetuin and human serum. Investigation of serum N-glycome for preliminary diagnosis of human lung cancer was conducted, where significant changes of several N-glycans corresponding to core-fucosylated, mono- and disialylated glycans have been evidenced by a series of statistical analysis. PMID- 29329888 TI - Associations between cartilage proteoglycan density and patient outcomes 12months following anterior cruciate ligament reconstruction. AB - BACKGROUND: Lower proteoglycan density (PGD) of the articular cartilage may be an early marker of osteoarthritis following anterior cruciate ligament (ACL) reconstruction (ACL-R). The purpose this study was to determine associations between the Knee Injury and Osteoarthritis Outcomes Score (KOOS) and PGD of the articular cartilage in the femur and tibia 12-months following ACL-R. METHODS: We evaluated KOOS pain, symptoms, function in activities of daily living (ADL), function in sport and recreation (Sport), and quality of life (QOL), as well as PGD using T1rho magnetic resonance imaging in 18 individuals 12.50+/-0.70months (these are all mean+/-standard deviation) following unilateral ACL-R (10 females, eight males; 22.39+/-4.19years; Marx Score=10.93+/-3.33). Medial and lateral load bearing portions of the femoral and tibial condyles were sectioned into three (anterior, central and posterior) regions of interest (ROIs). T1rho relaxation times in the ACL-R knee were normalized to the same regions of interest in the non-surgical knees. Alpha levels were set at P<=0.05. RESULTS: Worse KOOS outcomes were significantly associated with greater T1rho relaxation time ratios in the posterior-lateral femoral condyle [pain (r=-0.54), ADL (r=-0.56), Sport (r=-0.62) and QOL (r=-0.59)] central-lateral femoral condyle [Sport (r=-0.48) and QOL (r=-0.42)], and the anterior-medial femoral condyle [Sport (r=-0.46) and QOL (r=-0.40)]. There were no significant associations between the KOOS and T1rho outcomes for tibial ROI. CONCLUSIONS: Lower PGD of the femoral cartilage in the ACL-R knees was associated with worse patient-reported outcomes. PMID- 29329889 TI - Exploring individual adaptations to an anterior cruciate ligament injury prevention programme. AB - BACKGROUND: Individual responses to anterior cruciate ligament injury prevention programmes (ACL IPPs) have received little attention. This study examined the effects of an ACL IPP on neuromuscular control and lower limb biomechanics during landing at the group and individual levels. METHODS: Sixteen female athletes were randomly allocated to training (n=8) or control (n=8) groups. Electromyography, and three-dimensional kinematic and kinetic data were collected during landing at two testing sessions. Repeated measures ANOVA and effect sizes (Cohen's d) examined the effect of the IPP at the group and individual levels. A sub-group analysis comparing the effect of the IPP on 'high-' (i.e. large peak knee abduction moment at baseline) versus 'low-risk' individuals was also conducted. RESULTS: At the group level; the IPP increased activation of the medial hamstrings prior to landing (p<0.001; d=0.264) and the medial gastrocnemius at landing (p<0.001; d=0.426), and increased hip external rotation early after initial contact (p<0.001; d=0.476). Variable adaptations were seen across individuals within the training group for all variables (p<0.001). The IPP had a large effect in reducing frontal plane knee moments for 'high-risk' individuals (d>0.91), however these results did not reach statistical significance (p>0.05). CONCLUSIONS: The IPP induced adaptations during landing, however, individual data revealed dissimilar responses to the programme. Individuals displaying a pre existing high-risk strategy may incur greater benefits from IPPs, yet only if the programme targets the relevant high-risk strategy. PMID- 29329890 TI - Pain, motion and function comparison of two exercise protocols for the rotator cuff and scapular stabilizers in patients with subacromial syndrome. AB - STUDY DESIGN: Randomized clinical trial. INTRODUCTION: Eccentric exercise (EE) was shown to be an effective treatment in tendinopathies. However, the evidence of its effectiveness in subacromial syndrome (SS) is scarce. Moreover, consensus has not been reached on whether best results for SS are obtained by means of EE with or without pain. PURPOSE OF THE STUDY: The purpose of this is to compare the effect on pain, active range of motion (AROM), and shoulder function of an exercise protocol performed with pain <40 mm Visual Analog Scale (VAS) and without pain, in patients with SS. METHODS: Twenty-two subjects (mean age: 59 years [Q1 = 48.50-Q3 = 70], 54.5% women) were randomized into a not-painful EE group (NPEE; G0: n = 11) and a painful EE group (PEE; G1: n = 11). The intervention lasted 4 weeks. Pain was recorded using VAS; AROM was measured using a goniometer; and shoulder function using the modified Constant-Murley Score (CMS) before and after intervention. RESULTS: All dependent variables improved significantly in both groups (P < .05): NPEE VAS median: pretest = 55.0 posttest = 28.0; CMS median: pretest = 36.0 posttest = 65.0. PEE VAS median: pretest = 37.0 posttest = 12.0; CMS median: pretest = 35.0 posttest = 59.0. The comparison between groups showed no significant differences, with small effect size values (VAS = 0.09; CMS = 0.21; AROM = 0.12-0.43). DISCUSSION: In contrast to the previous findings, our results suggest that PEE do not add benefit in SS patients compared to NPEE. CONCLUSION: Our results suggest that both interventions are effective in terms of pain, function, and shoulder AROM. Furthermore, PEE does not provide greater benefits. Further studies are needed with long-term follow-up to reinforce these results. PMID- 29329891 TI - Medical use of cannabis and cannabinoids containing products - Regulations in Europe and North America. AB - In 1937, the United States of America criminalized the use of cannabis and as a result its use decreased rapidly. In recent decades, there is a growing interest in the wide range of medical uses of cannabis and its constituents; however, the laws and regulations are substantially different between countries. Laws differentiate between raw herbal cannabis, cannabis extracts, and cannabinoid based medicines. Both the European Medicines Agency (EMA) and the United States Food and Drug Administration (FDA) do not approve the use of herbal cannabis or its extracts. The FDA approved several cannabinoid-based medicines, so did 23 European countries and Canada. However, only four of the reviewed countries have fully authorized the medical use of herbal cannabis - Canada, Germany, Israel and the Netherlands, together with more than 50% of the states in the United States. Most of the regulators allow the physicians to decide what specific indications they will prescribe cannabis for, but some regulators dictate only specific indications. The aim of this article is to review the current (as of November 2017) regulations of medical cannabis use in Europe and North America. PMID- 29329892 TI - Pressure to publish in the biomedical scientific field: Ethical conflicts or a possible obsessive-compulsive disorder? PMID- 29329893 TI - Effect of short- and long-term diabetes control on in-hospital and one year mortality rates in hospitalized patients with diabetic foot. AB - INTRODUCTION: It remains unclear whether diabetic patients with diabetic foot complications benefit from strict glycemic control during hospitalization The present study investigates the effect of short- and long-term diabetes control on hospital outcomes including: in-hospital and one year mortality rates, length of hospital stay and the rate of repeated admissions. METHODS: Type 2 diabetic patients (n = 341) were hospitalized for diabetic foot complications at Wolfson Medical Center over a 5 year period (2008-2012). The adequate short-term glycemic control was defined as average glucose levels between 110 and 180 mg/dL. HbA1c values below 7% were defined as adequate long-term glycemic control. RESULTS: The average glucose levels during hospitalization were 179 +/- 45 mg/dL and 40% of the measurements were between 110 and 180 mg/dL. Mean admission HBA1c levels were 8.43% +/- 2.26%, and 31% of the values were below 7%. The mean length of hospital stay was 24.3 +/- 22.6 days, 15.0% of the patients needed surgical intervention during admission, the in-hospital mortality rate was 10.3%, and the rate of 1 year readmission was 25.1%. Adequate diabetes control during hospitalization was not significantly associated with reduced in-hospital mortality (hazard ratio, 0.454, 95% confidence interval 0.186-1.103, p = 0.081). However, adequate diabetes control during hospitalization lead to significantly decreased one year mortality (hazard ratio, 0.269, 95% confidence interval 0.707-0.101, p = 0.009). Adequate diabetes control during hospitalization did not affect the length of hospital stay or the rate of repeated admission. CONCLUSIONS: Improved glucose control during hospital admission (levels between 110 and 180 mg/dL) was associated with reduction of one year mortality. PMID- 29329894 TI - Neoadjuvant Dose Dense MVAC versus Gemcitabine and Cisplatin in Patients with cT3 4aN0M0 Bladder Cancer Treated with Radical Cystectomy. AB - PURPOSE: Level I evidence supports the usefulness of neoadjuvant cisplatin based chemotherapy for muscle invasive bladder cancer. Since dose dense MVAC (methotrexate, vinblastine, doxorubicin and cisplatin) has mostly replaced traditional MVAC, we compared pathological response and survival rates in patients with locally advanced bladder cancer who received neoadjuvant chemotherapy with dose dense MVAC vs gemcitabine and cisplatin. MATERIALS AND METHODS: We retrospectively reviewed the records of patients with urothelial cancer who received neoadjuvant chemotherapy and underwent cystectomy at a total of 20 contributing institutions from 2000 to 2015. Patients with cT3-4aN0M0 disease were selected for this analysis. The rates of ypT0N0 and ypT1N0 or less were compared between the gemcitabine and cisplatin, and dose dense MVAC regimens. Two multivariable Cox proportional hazards regression models of overall mortality were generated using preoperative and postoperative data. RESULTS: Of the patients who underwent neoadjuvant chemotherapy and radical cystectomy during the study period 319 met our inclusion criteria. A significantly lower rate of ypT0N0 was observed in the gemcitabine and cisplatin arm than in the dose dense MVAC arm (14.6% vs 28.0%, p = 0.005). The rate of ypT1N0 or less was 30.1% for gemcitabine and cisplatin compared to 41.0% for dose dense MVAC (p = 0.07). The mean Kaplan-Meier estimates of overall survival in the gemcitabine and cisplatin, and dose dense MVAC groups were 4.2 and 7.0 years, respectively (p = 0.001). On multivariable cox regression analysis based on preoperative data patients who received gemcitabine and cisplatin were at higher risk for death than patients who received dose dense MVAC (HR 2.07, 95% CI 1.25-3.42, p = 0.003). Lymph node invasion (HR 1.97, 95% CI 1.15-3.36, p = 0.01) and hydronephrosis (HR 2.18, 95% CI 1.43-3.30, p <0.001) were also associated with higher risk of death. CONCLUSIONS: In our retrospective cohort of patients with locally advanced bladder cancer dose dense MVAC was associated with higher complete pathological response and improved survival rates compared to gemcitabine and cisplatin. A clinical trial is warranted to validate these hypothesis generating results to test the superiority of neoadjuvant dose dense MVAC in patients with locally advanced bladder cancer. PMID- 29329895 TI - Long-Term Outcomes of Laser Prostatectomy for Storage Symptoms: Comparison of Serial 5-Year Followup Data between High Performance System Photoselective Vaporization and Holmium Laser Enucleation of the Prostate. AB - PURPOSE: We compared long-term storage symptom outcomes between photoselective laser vaporization of the prostate with a 120 W high performance system and holmium laser enucleation of the prostate. We also determined factors influencing postoperative improvement of storage symptoms in the long term. MATERIALS AND METHODS: Included in our study were 266 men, including 165 treated with prostate photoselective laser vaporization using a 120 W high performance system and 101 treated with holmium laser enucleation of the prostate, on whom 60-month followup data were available. Outcomes were assessed serially 6, 12, 24, 36, 48 and 60 months postoperatively using the International Prostate Symptom Score, uroflowmetry and the serum prostate specific antigen level. Postoperative improvement in storage symptoms was defined as a 50% or greater reduction in the subtotal storage symptom score at each followup visit after surgery compared to baseline. RESULTS: Improvements in frequency, urgency, nocturia, subtotal storage symptom scores and the quality of life index were maintained up to 60 months after photoselective laser vaporization or holmium laser enucleation of the prostate. There was no difference in the degree of improvement in storage symptoms or the percent of patients with postoperative improvement in storage symptoms between the 2 groups throughout the long-term followup. However, the holmium laser group showed greater improvement in voiding symptoms and quality of life than the laser vaporization group. On logistic regression analysis a higher baseline subtotal storage symptom score and a higher BOOI (Bladder Outlet Obstruction Index) were the factors influencing the improvement in storage symptoms 5 years after prostate photoselective laser vaporization or holmium laser enucleation. CONCLUSIONS: Our serial followup data suggest that storage symptom improvement was maintained throughout the long-term postoperative period for prostate photoselective laser vaporization with a 120 W high performance system and holmium laser enucleation without any difference between the 2 surgeries. Also, more severe storage symptoms at baseline and a more severe BOOI predicted improved storage symptoms in the long term after each surgery. PMID- 29329896 TI - Open prostatectomy versus 180-W XPS GreenLight laser vaporization: Long-term functional outcome for prostatic adenomas>80 g. AB - INTRODUCTION: GreenLight photoselective vaporisation of the prostate (PVP) offers an endoscopic alternative to open prostatectomy (OP) for treatment of large adenomas. This study compares long-term functional outcome of both techniques in patients with Benign prostatic obstruction (BPO)>80g. MATERIAL AND METHOD: Data from patients who underwent surgical treatment for BPO>80g from January 2010 to February 2015 at our institution were retrospectively collected and compared according to surgical technique. Patient's demographics, surgeon's experience, operative data and long-term functional results were analyzed, using IPSS and International continence society (ICS) male questionnaire associated with Quality of life scores (IPSS-QL and ICS-QL). Predictors of long-term outcome were also assessed. RESULTS: In total, 111 consecutive patients, 57 PVP and 54 OP, were included in the study with a mean follow-up of 24 and 33 month respectively. Patient's age, Charlson score, preoperative IPSS and urinary retention rates were similar. Mean prostatic volume was superior in the OP group (142 versus 103g, P<0.001). Transfusion rate was lower after PVP (P=0.02), despite a more frequent anticoagulant use. Length of hospital stay and urinary catheterization were shorter after PVP (P<0.001), with however a higher rate of recatheterization (RR=4.74) and rehospitalization (RR=10.42). Long-term scores were better after OP for IPSS (1 versus 5, P<0.001), IPSS-QL, ICS, ICS-QL. On multivariate analysis, prostatic residual volume was the only predictor of long-term IPSS but not ICS. CONCLUSION: Long-term functional outcome are better after OP compared to PVP. However, PVP offers good results, allowing to safely operate patients taking anticoagulants, regardless of prostatic volume. Endoscopic enucleation may the compromise between both techniques. LEVEL OF EVIDENCE: 4. PMID- 29329897 TI - [Botulinium toxin and idiopathic overactive bladder: Multicentric contempory management in Bourgogne]. AB - INTRODUCTION: Since 2014, OnabotulinumtoxinA Botox(r) (Allergan, Inc., Irvine, USA) represents a new therapeutic option for second-line treatment of idiopathic overactive bladder. The purpose of the current study was to evaluate practices of surgeons using onabotulinium toxin (BoNTA) in this indication. MATERIAL AND METHODS: All urogynecology centers of the country were asked in order to list all patients who were treated since marketing autorisation. Patient symptoms, previous treatments, paraclinic evaluations, data of surgery and the characteristics of the follow up were collected and analyzed. RESULTS: Six centers used BoNTA and five have accepted to participate. Ninety-seven patients have been identified. Sixty-eight first injections (70 %) were carried out with the strict frameworf of the marketing autorisation (urinary frequency, urinary urgency, urinary incontinence). All patients had at least two symptoms. In 69 %, Botulinum toxin was a second-line treatment after the failure of tibial neuromodulation or sacral neuromodulation. Urodynamic evaluation was carried out for 91 % of patients. The search for a post-void residual volume was observed for 59 % of patients during the follow up. CONCLUSION: In our country, BoNTA injections for idiopathic overactive bladder are mainly effected after tibial neuromodulation or sacral neuromodulation failure. Diagnostic, operating and outcome evaluation practices are still very heterogeneous pleading for a greater standardization of this new therapy in this indication. LEVEL OF EVIDENCE: 3. PMID- 29329898 TI - [Prognostic of older age for patients with invasive-muscle-bladder cancer and treated by radical cystectomy]. AB - INTRODUCTION: Bladder tumor is a disease of older persons, but can also occur in young adults, because certainly an influence of environmental factors and a change of lifestyle. The aim of our retrospective analysis is to assess and evaluate the extent of the prognostic impact of age on the carcinological prognosis of invasive-muscle-bladder cancer treated by total cystotomy. METHODS: To evaluate the association of patient age with pathological characteristics and recurrence-free and disease survival, we retrospectively reviewed 345 patients with invasive bladder cancer between January 2000 and January 2015. RESULTS: We divided our patients into two groups: patients under 65 years of age=150 cases (group 1), patients aged 65 years and over=195 cases (group 2). The 3-year survival rates for patients according to the age groups were 88% and 64% respectively, end the recurrence-free survival 66% and 28%. When age was analysed as a categorical variable, was associated with hydronephrosis (P=0.001), advanced pathological stage (P=0.034), high grade (P=0.026), nodal involvement (P=0.011) and lymphovascular invasion (P=0.008). The multivariate Cox model analysis showed that hydronephrosis and pathological stage was prognostic factors of survival (P=0.012 and P=0.035, respectively). Higher age is significantly associated with the risk of pathologically advanced disease and poorer global survival. CONCLUSION: This work allowed us to assert that advanced chronological age is significantly associated with an advanced pathological stage of the disease (volume, pT, grade, lymph nodes) and a low overall survival rate. This could be useful for selecting subjects who would require adjuvant therapy, as well as for planning early complementary therapies. LEVEL OF EVIDENCE: 3. PMID- 29329899 TI - Reply. PMID- 29329900 TI - The call for considering follicular helper T cells in IgG4-related disease. PMID- 29329901 TI - Effects of orthokeratology on axial length growth in myopic anisometropes. AB - PURPOSE: To investigate the effect of orthokeratology (ortho-k) lens wear on axial length (AL) growth in juvenile myopic anisometropes. METHODS: This retrospective study consisted of two parts. In Part One, 25 anisometropic participants (mean age, 11.2 +/- 1.9 years; 11 females and 14 males) were fitted with ortho-k lenses in the more myopic eye only, and the rate of AL growth was compared between the ortho-k lens wearing eye and the untreated contralateral eye over an average period of 23.1 +/- 8.3 months. In Part Two, 8 participants who developed myopia in the contralateral eye received ortho-k treatment in both eyes for an average of 12 months; the rate of AL growth before and after ortho-k treatment in the newly developed myopic eye was compared. RESULTS: In Part One, the rate of AL elongation in the ortho-k treated eye (0.08 +/- 0.15 mm/year) was significantly slower than in the contralateral eye (0.39 +/- 0.32 mm/year) (P < 0.001). At the completion of Part One, 16 out of 25 participants (64%) developed myopia in the initially non-myopic eye. In Part Two, the rate of AL elongation after ortho-k treatment in the newly developed myopic eye (0.20 mm/year) was significantly slower than that before ortho-k treatment in the same eye (0.49 mm/year) (P = 0.012). CONCLUSION: Ortho-k treatment slows AL growth in the more myopic eye of anisometropic patients; should the contralateral eye develop myopia in the future, ortho-k is capable of slowing down AL growth in that eye as well. PMID- 29329902 TI - Impact of vertical and horizontal malrotation on measurements of anteroposterior radiographs of the scapula: need for standardized images in modern omometry. AB - BACKGROUND: An increasing number of parameters measured on anteroposterior radiographs are used for the evaluation of the bony geometry of the scapula. Inhomogeneous acquisition of images is common because of the lack of standardization in radiographic positioning. Images with malrotation around the horizontal axis of the scapula are particularly frequent. We hypothesized that malrotated images would result in large variations in measured radiographic parameters and that image standardization using qualitative and semiquantitative "omometric" criteria would decrease these variations in measurements. "Omometry" is a newly introduced umbrella term that contains all standardized measurements on plain radiographs of the shoulder, analogous to the term "coxometry," which is widely used for the radiographic assessment of the osseous pelvis and hip. METHODS: In this experimental, cadaveric radiographic study, 7 dry-bone human scapula cadaveric specimens from anonymous donors were used to obtain 210 radiographs. We incrementally rotated (steps of 3 degrees ) every scapula around its horizontal and vertical axis, with a total range of 42 degrees per each axis. Then, we measured 5 radiographic parameters on every image and observed their change with malrotation. Furthermore, we introduced 4 omometric criteria defining an appropriate (presence of >=3 criteria) radiographic image to improve standardization of scapular image acquisition. RESULTS: Overall, measured values remained stable within a narrow range of +/-9 degrees of malrotation. Beyond this range, values of all parameters significantly deviated (>+/-2 degrees ) from the initial value. Measurements on appropriate images were significantly less prone to deviation. Within the appropriate images, those with 4 criteria showed a higher specificity than those with 3 criteria. CONCLUSION: There is significant variation in values of measured radiographic parameters on anteroposterior radiographs of the scapula with substantially malrotated images. With the use of the 4 newly introduced semiquantitative and qualitative omometric criteria, which define an appropriate image, reliability of the measured parameters can be significantly improved. PMID- 29329903 TI - Response to Laumonerie et al regarding: "Rare implant-specific complications of the MoPyC radial head prosthesis". PMID- 29329904 TI - Assembly, maturation, and degradation of the supraspinatus enthesis. AB - The development of the rotator cuff enthesis is still poorly understood. The processes in the early and late developmental steps are gradually elucidated, but it is still unclear how cell activities are coordinated during development and maturation of the structured enthesis. This review summarizes current knowledge about development and age-related degradation of the supraspinatus enthesis. Healing and repair of an injured and degenerated supraspinatus enthesis also remain a challenge, as the original graded transitional tissue of the fibrocartilaginous insertion is not re-created after the tendon is surgically reattached to bone. Instead, mechanically inferior and disorganized tissue forms at the healing site because of scar tissue formation. Consequently, the enthesis never reaches mechanical properties comparable to those of the native enthesis. So far, no novel biologic healing approach has been successful in enhancing healing of the injured enthesis. The results revealed in this review imply the need for further research to pave the way for better treatment of patients with rotator cuff disorder. PMID- 29329905 TI - Consensus Recommendations for Evaluation, Interpretation, and Utilization of Computed Tomography and Magnetic Resonance Enterography in Patients With Small Bowel Crohn's Disease. AB - Computed tomography and magnetic resonance enterography have become routine small bowel imaging tests to evaluate patients with established or suspected Crohn's disease, but the interpretation and use of these imaging modalities can vary widely. A shared understanding of imaging findings, nomenclature, and utilization will improve the utility of these imaging techniques to guide treatment options, as well as assess for treatment response and complications. Representatives from the Society of Abdominal Radiology Crohn's Disease-Focused Panel, the Society of Pediatric Radiology, the American Gastroenterological Association, and other experts, systematically evaluated evidence for imaging findings associated with small bowel Crohn's disease enteric inflammation and established recommendations for the evaluation, interpretation, and use of computed tomography and magnetic resonance enterography in small bowel Crohn's disease. This work makes recommendations for imaging findings that indicate small bowel Crohn's disease, how inflammatory small bowel Crohn's disease and its complications should be described, elucidates potential extra-enteric findings that may be seen at imaging, and recommends that cross-sectional enterography should be performed at diagnosis of Crohn's disease and considered for small bowel Crohn's disease monitoring paradigms. A useful morphologic construct describing how imaging findings evolve with disease progression and response is described, and standard impressions for radiologic reports that convey meaningful information to gastroenterologists and surgeons are presented. PMID- 29329906 TI - Development of a quick bioassay for the evaluation of transmission properties of acquired prion diseases. AB - Evaluation of transmission properties is important for the differential diagnosis of a subgroup of acquired Creutzfeldt-Jakob disease (CJD) with methionine homozygosity at polymorphic codon 129 of the PRNP gene, an intermediate type abnormal prion protein (PrP), and kuru plaques, denoted as acquired CJD-MMiK. The present study aimed to develop a quick evaluation system of the transmission properties of acquired CJD-MMiK. In the PrP-humanized mice intraperitoneally inoculated with brain homogenates from an acquired CJD-MMiK patient, accumulation of abnormal PrP was observed in follicular dendritic cells of the spleen at 75 days post-inoculation. The transmission properties of acquired CJD-MMiK were quite different from those of sporadic CJD with the same PRNP codon 129 genotype. Moreover, even at 14 days post-inoculation, the characteristic transmission properties of acquired CJD-MMiK could be detected. These findings suggest that the bioassay using follicular dendritic cells of the spleen, named as a FDC assay, can be an easy, time-saving, and useful method to distinguish acquired CJD MMiK from sporadic CJD. PMID- 29329907 TI - Influence of motor imagery on spinal reflex excitability of multiple muscles. AB - The effects of motor imagery on spinal reflexes such as the H-reflex are unclear. One reason for this is that the muscles that can be used to record spinal reflexes are limited to traditional evoking methods Recently, transcutaneous spinal cord stimulation has been used for inducing spinal reflexes from multiple muscles and we aimed to examine the effect of motor imagery on spinal reflexes from multiple muscles. Spinal reflexes evoked by transcutaneous spinal cord stimulation were recorded from six muscles from lower limbs during motor imagery of right wrist extension and ankle plantarflexion with maximum isometric contraction. During both imaginary tasks, facilitation of spinal reflexes was detected in the ankle ipsilateral plantarflexor and dorsiflexor muscles, but not in thigh, toe or contralateral lower limb muscles. These results suggest that motor imagery of isometric contraction facilitates spinal reflex excitability in muscles of the ipsilateral lower leg and the facilitation does not correspond to the imaginary involved muscles. PMID- 29329908 TI - Anatomical evidence for lateral hypothalamic innervation of the pontine A7 catecholamine cell group in rat. AB - Substantial behavioral evidence exists to support the idea that the lateral hypothalamus (LH) makes axonal connection with spinally-projecting noradrenergic neurons of the A7 catecholamine cell group in the pons. Through this putative projection, the LH modulates nociception via alpha1- and alpha2-adrenoceptors in the dorsal horn. We used double-label immunocytochemistry to demonstrate that axons from the LH labeled with the anterograde tracer biotinylated dextran amine (BDA) appose tyrosine hydroxylase-immunoreactive (TH-ir) neuron profiles in the A7 area. Other pontine areas labeled with BDA included the dorsomedial tegmental area, the pontine reticular nucleus, oral part, the caudal aspect of the dorsal raphe, the periaqueductal grey and the A6 area. To confirm the findings of the brightfield experiment, we used confocal microscopy to identify axons from the LH labeled with the anterograde tracer Fluoro-Ruby co-localized with TH-ir dendrites and cell bodies in the A7 cell group. These findings provide an anatomical substrate for behavioral studies in which stimulation of the LH modifies nociception in the spinal cord via norepinephrine. PMID- 29329911 TI - mRNA expression and metabolic regulation of npy and agrp1/2 in the zebrafish brain. AB - Neuropeptide Y (NPY) is an evolutionarily conserved neuropeptide implicated in feeding regulation in vertebrates. In mammals, NPY neurons coexpress Agouti related protein (AgRP) in the arcuate nucleus of the hypothalamus, and NPY/AgRP neurons activate orexigenic signaling to increase food intake. Zebrafish express npy and two agrp genes, agrp1 and agrp2, in the brain. Similar to mammals, NPY and AgRP1 act as orexigenic factors in zebrafish, but the exact distribution of NPY and AgRP neurons in the zebrafish brain and the regulation of these genes by metabolic states remain unclear. In this study, we analyzed the tissue distribution of npy, agrp1, and agrp2 mRNA in the brain of larval and adult zebrafish. We detected the expression of agrp1, but not npy, in the hypothalamus of larval zebrafish. In the adult zebrafish brain, npy mRNA expression was detected in the dorsal area of the periventricular and lateral hypothalamus, but fasting induced upregulation of npy only in the lateral hypothalamus, indicating that NPY neurons in this area are implicated in feeding regulation. However, consistent with the findings in larval zebrafish, NPY neurons in the hypothalamus did not coexpress AgRP1. In contrast, fasting resulted in a dramatic increase in AgRP1 neurons in the ventral periventricular hypothalamus, which do not coexpress NPY. In addition, we found for the first time that npy- and agrp1-expressing neurons function as GABAergic inhibitory neurons in zebrafish, as they do in mammals. Taken together, our results show that the zebrafish NPY/AgRP system is involved in appetite regulation. In addition, our data suggest that although npy and agrp1 were initially expressed in distinct neurons, evolution has resulted in their coexpression in mammalian hypothalamic neurons. PMID- 29329910 TI - The effects of exercise intensity and post-exercise recovery time on cortical activation as revealed by EEG alpha peak frequency. AB - Acute physical exercise (APE) induces an increase in the individual alpha peak frequency (iAPF), a cortical parameter associated with neural information processing speed. The aim of this study was to further scrutinize the influence of different APE intensities on post-exercise iAPF as well as its time course after exercise cessation. 95 healthy young (18-35 years) subjects participated in two randomized controlled experiments (EX1 and EX2). In EX1, all participants completed a graded exercise test (GXT) until exhaustion and were randomly allocated into different delay groups (immediately 0, 30, 60 and 90 min after GXT). The iAPF was determined before, immediately after as well as after the group-specific delay following the GXT. In EX2, participants exercised for 35 min at either 45-50%, 65-70% or 85-90% of their maximum heart rate (HRmax). The iAPF was determined before, immediately after as well as 20 min after exercise cessation. In EX1, the iAPF was significantly increased immediately after the GXT in all groups. This effect was not any more detectable after 30 min following exercise cessation. In EX2, a significant increase of the iAPF was found only after high-intensity (85-90% HRmax) exercise. The results indicate intense or exhaustive physical exercise is required to induce a transient increase in the iAPF that persists about 30 min following exercise cessation. Based on these findings, further research will have to scrutinize the behavioral implications associated with iAPF modulations following exercise. PMID- 29329913 TI - Predicting Extubation Outcomes-A Model Incorporating Heart Rate Characteristics Index. AB - OBJECTIVE: To test the hypothesis that in neonates on mechanical ventilation, heart rate characteristics index (HRCi) can be combined with a clinical model for predicting extubation outcomes in neonates. STUDY DESIGN: HRCi and clinical data for all intended intubation-extubation events (episodes) were retrospectively analyzed between June 2014 and January 2015. Each episode started 6 hours pre extubation or at the time of primary intubation if ventilation duration was shorter than 6 hours (baseline). The episodes ended at 72 hours postextubation for successful extubations or at reintubation for failed extubations. Mean of 6 hourly epoch HRCi-scores (baseline) or fold-changes (postextubation) were analyzed. Results are expressed as medians (IQR) for continuous data and proportions for categorical data. Multivariable logistic regression mixed model was used for statistical analysis. RESULTS: Sixty-six infants contributed to 96 episodes (18 failed extubations, 78 successful extubations) in the study. Failed extubations had significantly longer duration of ventilation (65.3 hours, 19.94 158.2 vs 38.4, 16.5-71.3) and more culture positive sepsis (33.3% vs 3.8%) than successful extubations. Baseline HRCi scores (1.68, 1.29-2.45 vs 0.95, 0.54-1.86) and postextubation epoch-1 fold changes (1.25, 0.94-1.55 vs 0.94, 0.82-1.11) were higher in failed extubations compared with successful extubations. Multivariable linear mixed-effects regression was used to create prediction models for success of extubation, using relevant variables. CONCLUSIONS: The baseline and postextubation HRCi were significantly higher in neonates with extubation failure compared with those who succeeded. Models using HRCi and clinical variables to predict extubation success may add to the confidence of clinicians considering extubation. PMID- 29329914 TI - Never Forget the Optic Fundi in Tuberculosis! PMID- 29329912 TI - Identification and fate mapping of the pancreatic mesenchyme. AB - The murine pancreas buds from the ventral embryonic endoderm at approximately 8.75 dpc and a second pancreas bud emerges from the dorsal endoderm by 9.0 dpc. Although it is clear that secreted signals from adjacent mesoderm-derived sources are required for both the appropriate emergence and further refinement of the pancreatic endoderm, neither the exact signals nor the requisite tissue sources have been defined in mammalian systems. Herein we use DiI fate mapping of cultured murine embryos to identify the embryonic sources of both the early inductive and later condensed pancreatic mesenchyme. Despite being capable of supporting pancreas induction from dorsal endoderm in co-culture experiments, we find that in the context of the developing embryo, the dorsal aortae as well as the paraxial, intermediate, and lateral mesoderm derivatives only transiently associate with the dorsal pancreas bud, producing descendants that are decidedly anterior to the pancreas bud. Unlike these other mesoderm derivatives, the axial (notochord) descendants maintain association with the dorsal pre-pancreatic endoderm and early pancreas bud. This fate mapping data points to the notochord as the likely inductive source in vivo while also revealing dynamic morphogenetic movements displayed by individual mesodermal subtypes. Because none of the mesoderm examined above produced the pancreatic mesenchyme that condenses around the induced bud to support exocrine and endocrine differentiation, we also sought to identify the mesodermal origins of this mesenchyme. We identify a portion of the coelomic mesoderm that contributes to the condensed pancreatic mesenchyme. In conclusion, we identify a portion of the notochord as a likely source of the signals required to induce and maintain the early dorsal pancreas bud, demonstrate that the coelomic mesothelium contributes to the dorsal and ventral pancreatic mesenchyme, and provide insight into the dynamic morphological rearrangements of mesoderm-derived tissues during early organogenesis stages of mammalian development. PMID- 29329909 TI - The signaling role for chloride in the bidirectional communication between neurons and astrocytes. AB - It is well known that the electrical signaling in neuronal networks is modulated by chloride (Cl-) fluxes via the inhibitory GABAA and glycine receptors. Here, we discuss the putative contribution of Cl- fluxes and intracellular Cl- to other forms of information transfer in the CNS, namely the bidirectional communication between neurons and astrocytes. The manuscript (i) summarizes the generic functions of Cl- in cellular physiology, (ii) recaps molecular identities and properties of Cl- transporters and channels in neurons and astrocytes, and (iii) analyzes emerging studies implicating Cl- in the modulation of neuroglial communication. The existing literature suggests that neurons can alter astrocytic Cl- levels in a number of ways; via (a) the release of neurotransmitters and activation of glial transporters that have intrinsic Cl- conductance, (b) the metabotropic receptor-driven changes in activity of the electroneutral cation-Cl- cotransporter NKCC1, and (c) the transient, activity-dependent changes in glial cell volume which open the volume-regulated Cl-/anion channel VRAC. Reciprocally, astrocytes are thought to alter neuronal [Cl-]i through either (a) VRAC-mediated release of the inhibitory gliotransmitters, GABA and taurine, which open neuronal GABAA and glycine receptor/Cl- channels, or (b) the gliotransmitter-driven stimulation of NKCC1. The most important recent developments in this area are the identification of the molecular composition and functional heterogeneity of brain VRAC channels, and the discovery of a new cytosolic [Cl-] sensor - the Wnk family protein kinases. With new work in the field, our understanding of the role of Cl- in information processing within the CNS is expected to be significantly updated. PMID- 29329915 TI - Observed variation in N95 respirator use by nurses demonstrating isolation care. AB - Video review and scoring was used to evaluate the behaviors of nurses wearing N95 filtering face piece respirators while providing isolation care in a simulated patient care environment. This study yielded a detailed description of behaviors related to N95 respirator use in a health care setting. Developing a more robust and systematic behavior analysis tool for use in demonstration, simulation, and clinical care would allow for improved respiratory protection of health care workers. PMID- 29329917 TI - Comments on incidence and risk factors for infection in spine surgery: A prospective multicenter study of 1,764 instrumented spine procedures. PMID- 29329916 TI - Impact of the International Nosocomial Infection Control Consortium's multidimensional approach on rates of ventilator-associated pneumonia in 14 intensive care units in 11 hospitals of 5 cities within Argentina. AB - BACKGROUND: To analyze the impact of the International Nosocomial Infection Control Consortium (INICC) multidimensional approach (IMA) on ventilator associated pneumonia (VAP) rates in 11 hospitals within 5 cities of Argentina from January 2014-April 2017. METHODS: A multicenter, prospective, before-after surveillance study was conducted through the use of International Nosocomial Infection Control Consortium Surveillance Online System. During baseline, we performed outcome surveillance of VAP applying the definitions of the Centers for Disease Control andPrevention's National Healthcare Safety Network. During intervention, we implemented the IMA, which included a bundle of infection prevention practice interventions, education, outcome surveillance, process surveillance, feedback on VAP rates and consequences, and performance feedback of process surveillance. Bivariate and multivariate regression analyses were performed using a logistic regression model to estimate the effect of the intervention. RESULTS: We recorded 3,940 patients admitted to 14 intensive care units. At baseline, there were 19.9 VAPs per 1,000 mechanical ventilator (MV) days-with 2,920 MV-days and 58 VAPs, which was reduced during intervention to 9.4 VAPs per 1,000 MV-days-with 9,261 MV-days and 103 VAPs. This accounted for a 52% rate reduction (incidence density rate, 0.48; 95% confidence interval, 0.3-0.7; P .001). CONCLUSIONS: Implementing the IMA was associated with significant reductions in VAP rates in intensive care units within Argentina. PMID- 29329918 TI - Trends in incidence of long-term-care facility onset Clostridium difficile infections in 10 US geographic locations during 2011-2015. AB - During 2011-2015, the adjusted long-term-care facility onset Clostridium difficile infection incidence rate in persons aged >=65 years decreased annually by 17.45% (95% confidence interval, 14.53%-20.43%) across 10 US sites. A concomitant decline in inpatient fluoroquinolone use and the C difficile epidemic strain NAP1/027 among persons aged >=65 years may have contributed to the decrease in long-term-care facility-onset C difficile infection incidence rate. PMID- 29329919 TI - Comments on risk factors for health care-associated infections: From better knowledge to better prevention. PMID- 29329920 TI - Comments on decreased mortality in patients prescribed vancomycin after implementation of an antimicrobial stewardship program. PMID- 29329921 TI - Assessment of test methods for evaluating effectiveness of cleaning flexible endoscopes. AB - BACKGROUND: Strict adherence to each step of reprocessing is imperative to removing potentially infectious agents. Multiple methods for verifying proper reprocessing exist; however, each presents challenges and limitations, and best practice within the industry has not been established. Our goal was to evaluate endoscope cleaning verification tests with particular interest in the evaluation of the manual cleaning step. The results of the cleaning verification tests were compared with microbial culturing to see if a positive cleaning verification test would be predictive of microbial growth. METHODS: This study was conducted at 2 high-volume endoscopy units within a multisite health care system. Each of the 90 endoscopes were tested for adenosine triphosphate, protein, microbial growth via agar plate, and rapid gram-negative culture via assay. The endoscopes were tested in 3 locations: the instrument channel, control knob, and elevator mechanism. RESULTS: This analysis showed substantial level of agreement between protein detection postmanual cleaning and protein detection post-high-level disinfection at the control head for scopes sampled sequentially. CONCLUSIONS: This study suggests that if protein is detected postmanual cleaning, there is a significant likelihood that protein will also be detected post-high-level disinfection. It also infers that a cleaning verification test is not predictive of microbial growth. PMID- 29329922 TI - A multistate investigation of health care-associated Burkholderia cepacia complex infections related to liquid docusate sodium contamination, January-October 2016. AB - BACKGROUND: Outbreaks of health care-associated infections (HAIs) caused by Burkholderia cepacia complex (Bcc) have been associated with medical devices and water-based products. Water is the most common raw ingredient in nonsterile liquid drugs, and the significance of organisms recovered from microbiologic testing during manufacturing is assessed using a risk-based approach. This incident demonstrates that lapses in manufacturing practices and quality control of nonsterile liquid drugs can have serious unintended consequences. METHODS: An epidemiologic and laboratory investigation of clusters of Bcc HAIs that occurred among critically ill, hospitalized, adult and pediatric patients was performed between January 1, 2016, and October 31, 2016. RESULTS: One hundred and eight case patients with Bcc infections at a variety of body sites were identified in 12 states. Two distinct strains of Bcc were obtained from patient clinical cultures. These strains were found to be indistinguishable or closely related to 2 strains of Bcc obtained from cultures of water used in the production of liquid docusate, and product that had been released to the market by manufacturer X. CONCLUSIONS: This investigation highlights the ability of bacteria present in nonsterile, liquid drugs to cause infections or colonization among susceptible patients. Prompt reporting and thorough investigation of potentially related infections may assist public health officials in identifying and removing contaminated products from the market when lapses in manufacturing occur. PMID- 29329923 TI - Different protein composition of low-calorie diet differently impacts adipokine profile irrespective of weight loss in overweight and obese women. AB - BACKGROUND AND AIMS: High-protein (HP) diets have shown benefits in cardiometabolic markers such as insulin or triglycerides but the responsible mechanisms are not known. We aimed to assess the effect of three energy restricted diets with different protein contents (20%, 27%, and 35%; ~80% coming from animal source) on plasma adipokine concentration and its association with changes in cardiometabolic markers. METHODS: Seventy-six women (BMI 32.8 +/- 2.93) were randomized to one of three calorie-reduced diets, with protein, 20%, 27%, or 35%; carbohydrates, 50%, 43%, or 35%; and fat, 30%, for 3 months. Plasma adipokine (leptin, resistin, adiponectin, and retinol-binding protein 4; RBP4) levels were assessed. RESULTS: After 3 months, leptin concentration decreased in all groups without differences among them, while resistin levels remained unchanged. Adiponectin concentration heterogeneously changed in all groups (P for trend = 0.165) and resistin concentration did not significantly change. RPB4 significantly decreased by -17.5% (-31.7, -3.22) in 35%-protein diet (P for trend = 0.024 among diets). Triglycerides improved in women following the 35%-protein diet regardless of weight loss; RBP4 variation significantly influenced triglyceride concentration change by 24.9% and 25.9% when comparing 27%- and 35%- with 20%-protein diet, respectively. CONCLUSIONS: A 35%-protein diet induced a decrease in RBP4 regardless of weight loss, which was directly associated with triglyceride concentration improvement. These findings suggest that HP diets improve the cardiometabolic profile, at least in part, through changes in adipokine secretion. Whether this beneficial effect of HP diet is due to improvements in hepatic or adipose tissue functionality should be elucidated. CLINICAL TRIAL REGISTRATION: The clinical trial has been registered in ClinicalTrials.gov (Identifier: NCT02160496). PMID- 29329924 TI - Effects of dark chocolate on endothelial function in patients with non-alcoholic steatohepatitis. AB - BACKGROUND AND AIM: Oxidative stress plays a pivotal role in inducing endothelial dysfunction and progression from simple fatty liver steatosis (FLD) to non alcoholic steatohepatitis (NASH). Polyphenols could reduce oxidative stress and restore endothelial function by inhibiting the nicotinamide-adenine-dinucleotide phosphate (NADPH) oxidase isoform Nox2. The aim of this study was to assess endothelial function and oxidative stress in a population affected by simple FLD and NASH. Furthermore, we analysed the effect of high vs low content of cocoa polyphenols on endothelial function and oxidative stress in patients with NASH. METHODS: In a cross-sectional study we analysed endothelial function, as assessed by flow-mediated dilation (FMD), and oxidative stress, as assessed by Nox2 activation, serum isoprostanes and nitric oxide bioavailability (NOx), in patients with NASH (n = 19), FLD (n = 19) and controls (n = 19). Then, we performed a randomized, cross-over study in 19 subjects with NASH comparing the effect of 14-days administration of 40 g of chocolate at high (dark chocolate, cocoa >85%) versus low content (milk chocolate, cocoa <35%) of polyphenols on FMD and oxidative stress. Compared to controls, NASH and FLD patients had higher Nox2 activity and isoprostanes levels and lower FMD and NOx, with a significant gradient between FLD and NASH. The interventional study showed that, compared to baseline, FMD and NOx increased (from 2.9 +/- 2.4 to 7.2 +/- 3.0% p < 0.001 and from 15.9 +/- 3.6 to 20.6 +/- 4.9 MUM, p < 0.001, respectively) in subjects given dark but not in those given milk chocolate. A simple linear regression analysis showed that Delta (expressed by difference of values between before and after 14 days of chocolate assumption) of FMD was associated with Delta of Nox2 activity (Rs = -0.323; p = 0.04), serum isoprostanes (Rs: -0.553; p < 0.001) and NOx (Rs: 0.557; p < 0.001). CONCLUSIONS: Cocoa polyphenols improve endothelial function via Nox2 down-regulation in NASH patients. PMID- 29329925 TI - Phenotypic and molecular characterization of a serum-free miniature erythroid differentiation system suitable for high-throughput screening and single-cell assays. AB - In vitro erythroid differentiation systems are used to study the mechanisms underlying normal and abnormal erythropoiesis and to test the effects of various extracellular factors on erythropoiesis. The use of serum or conditioned medium in liquid cultures and the seeding of cultures with heterogeneous peripheral blood mononuclear cells confound the reproducibility of these systems. Newer erythroid differentiation culture systems have overcome some of these limitations by using a fully defined, serum-free medium and initiating cultures using purified CD34+ cells. Although widely used in bulk cultures, these protocols have not been rigorously tested in high-throughput or single-cell assays. Here, we describe a serum-free erythroid differentiation system suitable for small-scale and single-cell experiments. This system generates large numbers of terminally differentiated erythroid cells of very high purity. Here we have adapted this culture system to a 96-well format and have developed a protocol to grow erythroid colonies from single erythroid progenitors in minute culture volumes. PMID- 29329926 TI - Characterization of Selenoprotein P cDNA of the Antarctic toothfish Dissostichus mawsoni and its role under cold pressure. AB - Our previous study using comparative genome analysis revealed a significant gene copy number gain of Dissostichus mawsoni selenoprotein P (Dm-SEPP) during the evolutionary radiation of Antarctic notothenioids, suggesting that Dm-SEPP contribute to this process, but the detailed structure and function of this gene product remain unclear. In the present study, the Dm-SEPP cDNA was cloned and characterized. The Dm-SEPP cDNA contains 17 selenocysteines (Sec) encoded by TGA codons and 2 typical SECIS elements located in the 3'-UTR. Evolutionary analysis of the Dm-SEPP gene revealed that it's closely related to the SEPP gene of zebrafish (Danio rerio), showing 51% amino acid similarity. Over-expression of Dm SEPP could protect mammalian cells under cold pressure, probably via eliminating ROS. Further study showed an increase of endogenous SEPP in zebrafish ZF4 cells under cold pressure, and knockdown of SEPP decreased cell viability, accompanied with increased ROS. Our results suggested a protective role of Dm-SEPP in cold adaptation in Antarctic notothenioids. PMID- 29329927 TI - Systems biomarkers in psoriasis: Integrative evaluation of computational and experimental data at transcript and protein levels. AB - Psoriasis is a complex autoimmune disease with multiple genes and proteins being involved in its pathogenesis. Despite the efforts performed to understand mechanisms of psoriasis pathogenesis and to identify diagnostic and prognostic targets, disease-specific and effective biomarkers were still not available. This study is compiled regarding clinical validation of computationally proposed biomarkers at gene and protein expression levels through qRT-PCR and ELISA techniques using skin biopsies and blood plasma. We identified several gene and protein clusters as systems biomarkers and presented the importance of gender difference in psoriasis. A gene cluster comprising of PI3, IRF9, IFIT1 and NMI were found as positively correlated and differentially co-expressed for women, whereas SUB1 gene was also included in this cluster for men. The differential expressions of IRF9 and NMI in women and SUB1 in men were validated at gene expression level via qRT-PCR. At protein level, PI3 was abundance in disease states of both genders, whereas PC4 protein and WIF1 protein were significantly higher in healthy states than disease states of male group and female group, respectively. Regarding abundancy of PI3 and WIF1 proteins in women, and PI3 and PC4 in men may be assumed as systems biomarkers at protein level. PMID- 29329928 TI - Cloning and characterization of ?6/?5 fatty acyl desaturase (Fad) gene promoter in the marine teleost Siganus canaliculatus. AB - The rabbitfish Siganus canaliculatus was the first marine teleost demonstrated to have the ability of biosynthesizing long-chain polyunsaturated fatty acids (LC PUFA) from C18 PUFA precursors, and all genes encoding the key enzymes for LC PUFA biosynthesis have been cloned and functionally characterized, which provides us a potential model to study the regulatory mechanisms of LC-PUFA biosynthesis in teleosts. As the primary step to clarify such mechanisms, present research focused on promoter analysis of gene encoding ?6/?5 fatty acyl desaturase (Fad), a rate-limiting enzyme catalyzing the first step in the conversion of C18 PUFA to LC-PUFA. First, 2044 bp promoter sequence was cloned by genome walking, and the sequence from -456 bp to +51 bp was determined as core promoter by progressive deletion mutation. Moreover, binding sites of transcription factors (TF) such as CCAAT enhancer binding protein (C/EBP), nuclear factor 1 (NF-1), stimulatory protein 1 (Sp1), nuclear factor Y (NF-Y), activated protein 1 (AP1), sterol regulatory element (SRE), hepatocyte nuclear factor 4alpha (HNF4alpha) and peroxisome proliferator activated receptor gamma (PPARgamma) were identified in the core promoter by site-directed mutation and functional assays. Moreover, NF-1 and HNF4alpha were confirmed to interact with the core promoter region by gel shift assay and mass spectrometry. This is the first report of the promoter structure of a ?6/?5 Fad in a marine teleost, and a novel discovery of NF-1 and HNF4alpha binding to the ?6/?5 Fad promoter. PMID- 29329929 TI - Detoxification genes polymorphisms in SIDS exposed to tobacco smoke. AB - The best hypothesis to explain Sudden Infant Death Syndrome (SIDS) pathogenesis is offered by the "triple risk model", which suggests that an interaction of different variables related to exogenous stressors and infant vulnerability may lead to the syndrome. Environmental factors are triggers that act during a particular sensible period, modulated by intrinsic genetic characteristics. Although literature data show that one of the major SIDS risk factors is smoking exposure, a specific involvement of molecular components has never been highlighted. Starting from these observations and considering the role of GSTT1 and GSTM1 genes functional polymorphisms in the detoxification process, we analyzed GSTM1 and GSTT1 null genotype frequencies in 47 SIDS exposed to tobacco smoke and 75 healthy individuals. A significant association (p < .0001) between the GSTM1 null genotype and SIDS exposed to smoke was found. On the contrary, no association between GSTT1 polymorphism and SIDS was determined. Results indicated the contribution of the GSTM1 -/- genotype resulting in null detoxification activity in SIDS cases, and led to a better comprehension of the triple risk model, highlighting smoking exposure as a real SIDS risk factor on a biochemical basis. PMID- 29329930 TI - Ketamine is a good first-line option for severely agitated patients in the prehospital environment. PMID- 29329931 TI - Red blood cell distribution width in sepsis. PMID- 29329933 TI - Combined Hepatic and Pulmonary Metastasectomies From Colorectal Carcinoma. Data From the Prospective Spanish Registry 2008-2010. AB - INTRODUCTION: Resection of both liver and lung metastases from colorectal carcinoma (CRC) is a standard of care in selected patients with oligometastatic disease. We present here the analysis of the subgroup of patients undergoing combined surgery from the Spanish Group of Surgery of Pulmonary Metastases (PM) from Colorectal Carcinoma (GECMP-CCR-SEPAR). METHODS: We analyze characteristics, survival and prognostic factors of patients undergoing combined resection from March-2008 to February-2010 and followed-up during at least 3 years, from the prospective multicenter Spanish Registry. RESULTS: A total of 138 patients from a whole series of 543 cases from 32 thoracic surgery units underwent both procedures. Seventy-seven (43.8%) resected liver metastases were synchronic with colorectal tumor. Median disease specific survival (DSS) from first pulmonary metastasectomy was 48.9 months, being three and 5-year DSS 65.1% and 41.7%, respectively. From CRC-surgery median DSS was 97.2 months, with 3 and 5-year DSS rates of 96.7% and 77%, respectively. Five-year DSS from pulmonary metastasectomy was 41.7% for patients with combined resection and 52.4% for those without hepatic involvement (P=.04). Differences disappeared when considering DSS from colorectal surgery. Carcinoembrionary antigen (CEA) before lung surgery over 10mg/dl and bilateral PM were independent prognostic factors for survival (hazard ratio 2.4 and 2.5, respectively). CONCLUSIONS: Patients with resection of PM of CRC with history of resected hepatic metastases presented significantly lower disease specific survival rates than those undergoing pulmonary metastasectomy alone. CEA before lung surgery and bilateral PM associated worse prognosis. PMID- 29329932 TI - Development of the Human Fetal Kidney from Mid to Late Gestation in Male and Female Infants. AB - BACKGROUND: During normal human kidney development, nephrogenesis (the formation of nephrons) is complete by term birth, with the majority of nephrons formed late in gestation. The aim of this study was to morphologically examine nephrogenesis in fetal human kidneys from 20 to 41weeks of gestation. METHODS: Kidney samples were obtained at autopsy from 71 infants that died acutely in utero or within 24h after birth. Using image analysis, nephrogenic zone width, the number of glomerular generations, renal corpuscle cross-sectional area and the cellular composition of glomeruli were examined. Kidneys from female and male infants were analysed separately. FINDINGS: The number of glomerular generations formed within the fetal kidneys was directly proportional to gestational age, body weight and kidney weight, with variability between individuals in the ultimate number of generations (8 to 12) and in the timing of the cessation of nephrogenesis (still ongoing at 37weeks gestation in one infant). There was a slight but significant (r2=0.30, P=0.001) increase in renal corpuscle cross-sectional area from mid gestation to term in females, but this was not evident in males. The proportions of podocytes, endothelial and non-epithelial cells within mature glomeruli were stable throughout gestation. INTERPRETATION: These findings highlight spatial and temporal variability in nephrogenesis in the developing human kidney, whereas the relative cellular composition of glomeruli does not appear to be influenced by gestational age. PMID- 29329935 TI - Tick-borne pathogen detection: what's new? AB - Ticks and the pathogens they transmit constitute a growing burden for human and animal health worldwide. Traditionally, tick-borne pathogen detection has been carried out using PCR-based methods that rely in known sequences for specific primers design. This approach matches with the view of a 'single-pathogen' epidemiology. Recent results, however, have stressed the importance of coinfections in pathogen ecology and evolution with impact in pathogen transmission and disease severity. New approaches, including high-throughput technologies, were then used to detect multiple pathogens, but they all need a priori information on the pathogens to search. Thus, those approaches are biased, limited and conceal the complexity of pathogen ecology. Currently, next generation sequencing (NGS) is applied to tick-borne pathogen detection as well as to study the interactions between pathogenic and non-pathogenic microorganisms associated to ticks, the pathobiome. The use of NGS technologies have surfaced two major points: (i) ticks are associated to complex microbial communities and (ii) the relation between pathogens and microbiota is bidirectional. Notably, a new challenge emerges from NGS experiments, data analysis. Discovering associations among a high number of microorganisms is not trivial and therefore most current NGS studies report lists of microorganisms without further insights. An alternative to this is the combination of NGS with analytical tools such as network analysis to unravel the structure of microbial communities associated to ticks in different ecosystems. PMID- 29329936 TI - Child-onset paroxysmal exercise-induced dystonia as the initial manifestation of hereditary Parkinson's disease. PMID- 29329934 TI - Application of our understanding of pathogenesis of herpetic stromal keratitis for novel therapy. AB - HSV-1 ocular infection can cause herpes stromal keratitis (SK), an immunopathological lesion. Frequent recurrences can lead to progressive corneal scaring which can result in vision impairment if left untreated. Currently, the acute and epithelial forms of SK are usually controlled using anti-viral drugs. However, chronic forms of SK which are inflammatory in nature, require the addition of a topical corticosteroid to the anti-viral treatment regimen. In this review, we highlight the essential events involved in SK pathogenesis which can be targeted for improved therapy. We also examine some approaches which can be combined with the current treatments to effectively control SK. PMID- 29329937 TI - Isolated hemifacial spasm presenting as unilateral, involuntary ear movements. PMID- 29329938 TI - Pipeline to gene discovery - Analysing familial Parkinsonism in the Queensland Parkinson's Project. AB - INTRODUCTION: Family based study designs provide an informative resource to identify disease-causing mutations. The Queensland Parkinson's Project (QPP) has been involved in numerous genetic screening studies; however, details of the families enrolled into the register have not been comprehensively reported. This article characterises the families enrolled in the QPP and summarises monogenic forms of hereditary Parkinsonism found in the register. METHOD: The presence of pathogenic point mutations and copy number variations (CNVs) were, generally, screened in a sample of over 1000 PD patients from the total of 1725. Whole exome sequencing (WES) was performed on eighteen probands from multiplex families. RESULTS: The QPP contains seventeen incidences of confirmed monogenic forms of PD, including LRRK2 p.G2019S, VPS35 p.D620N, SNCA duplications and PARK2 p.G430D (hom) & exon 4 deletion (hom). Of these seventeen, five belong to multi-incident families, while another eight have a family history of at least one other case of PD. In additional families, WES did not identify known forms of monogenic Parkinsonism; however, three heterozygous mutations in PARK2, p.R275W, p.Q34fs, and a 40bp deletion in exon 3 were identified. Of these three mutations, only the 40bp deletion segregated with disease in a dominant inheritance pattern. CONCLUSION: Eighteen probands have screened negative for known CNVs and mutations that cause clear monogenic forms of PD. Each family is a candidate for further genetic analysis to identify genetic variants segregating with disease. The families enrolled in the QPP provide a useful resource to aid in identifying novel forms of monogenic PD. PMID- 29329939 TI - Enhanced mobility of non aqueous phase liquid (NAPL) during drying of wet sand. AB - Enhanced upward mobility of a non aqueous phase liquid (NAPL) present in wet sand during natural drying, and in the absence of any external pressure gradients, is reported for the first time. This mobility was significantly higher than that expected from capillary rise. Experiments were performed in a glass column with a small layer of NAPL-saturated sand trapped between two layers of water-saturated sand. Drying of the wet sand was induced by flow of air across the top surface of the wet sand. The upward movement of the NAPL, in the direction of water transport, commenced when the drying effect reached the location of the NAPL and continued as long as there was significant water evaporation in the vicinity of NAPL, indicating a clear correlation between the NAPL rise and water evaporation. The magnitude and the rate of NAPL rise was measured at different water evaporation rates, different initial locations of the NAPL, different grain size of the sand and the type of NAPL (on the basis of different NAPL-glass contact angle, viscosity and density). A positive correlation was observed between average rate of NAPL rise and the water evaporation while a negative correlation was obtained between the average NAPL rise rate and the NAPL properties of contact angle, viscosity and density. There was no significant correlation of average NAPL rise rate with variation of sand grain size between 0.1 to 0.5mm. Based on these observations and on previous studies reported in the literature, two possible mechanisms are hypothesized -a) the effect of the spreading coefficient resulting in the wetting of NAPL on the water films created and b) a moving water film due to evaporation that "drags" the NAPL upwards. The NAPL rise reported in this paper has implications in fate and transport of chemicals in NAPL contaminated porous media such as soils and exposed dredged sediment material, which are subjected to varying water saturation levels due to drying and rewetting. PMID- 29329940 TI - Cardiovascular Risk Reduction in Persons Living With HIV: Treatment Development, Feasibility, and Preliminary Results. AB - Persons living with HIV (PLWH) have elevated risks for cardiovascular disease (CVD). Our goal was to develop and pilot test a tailored intervention to improve CVD risk perception and the adoption of heart-healthy behaviors. In-depth qualitative interviews were conducted with 30 PLWH participants to examine learning needs and preferences. An intervention manual was developed and tested in an open pilot with eight participants. Participants were stable on antiretroviral therapy and were recruited from two urban HIV clinics in the northeastern United States. Thematic analysis identified five major themes: (a) tailored structure and design for PLWH, (b) learning needs (specific to HIV), (c) desire for prompts/reminders (to exercise), (d) importance of participant resources, and (e) need for personal evaluation and goal setting. Feasibility and acceptability of the intervention were demonstrated with high session attendance and treatment satisfaction. Further testing is warranted. PMID- 29329941 TI - Analysis of refuse-to-file policy for generic drug application in Taiwan. AB - Generic drugs are accounted for majority of medicinal products. To reduce the unnecessary review for incomplete dossiers of generic drugs, Taiwanese government launched a refuse-to-file (RTF) process since 2017. The present study aimed to examine the outcome of RTF process by analyzing application characteristic, RTF rate and deficiencies found in the submitted dossiers. Descriptive analyses of administrative information, chemistry, manufacturing and controls, bioequivalence study, and comparative dissolution testing were presented during the first 6 months after the implementation of RTF policy. The results showed that the source of application was likely a determinant to the RTF outcome, i.e., foreign rather than domestic applications were more liable to be RTF. It is possibly that (i) RTF applications were mainly due to incomplete dossiers regarding bioequivalence study and comparative dissolution testing, and (ii) the studies (bioequivalence and dissolution) of domestic applications conducted locally are exempted from the RTF process because they are allowed to submit for review before generic drug applications. Finally, the dossier integrity appeared not improved during the period of analysis as the number of RTF did not reduce by month. Results of the present study may help pharmaceutical industry to improve the dossiers' quality by fixing the deficiencies of generic drug submission. PMID- 29329942 TI - Variational neuroethology: Answering further questions: Reply to comments on "Answering Schrodinger's question: A free-energy formulation". PMID- 29329943 TI - Experience versus diagnosis as the appropriate basis for assessment of depression: A reply to the commentary from Kirmayer et al. (2017). PMID- 29329944 TI - Use of SuperARMS EGFR Mutation Detection Kit to Detect EGFR in Plasma Cell-free DNA of Patients With Lung Adenocarcinoma. AB - BACKGROUND: The SuperARMS EGFR Mutation Detection Kit (SuperARMS) is highly selective and sensitive and able to detect 41 of the most common somatic mutations in exons 18 to 21 of the epidermal growth factor receptor gene (EGFR). It allows for the detection of 0.2% to 0.8% mutant DNA in a background of 99.8% to 99.2% normal DNA. The present study assessed the performance of SuperARMS in detecting EGFR mutations in cell-free DNA (cfDNA) samples derived from plasma in patients with advanced lung adenocarcinoma. MATERIALS AND METHODS: A total of 180 patients with advanced clinical stage lung adenocarcinoma were retrospectively registered. The concordance between the EGFR mutations detected by SuperARMS and ARMS (AmoyDx EGFR 29 Mutations Detection Kit) was analyzed. RESULTS: Of the 180 samples, 57 (31.7%) were positive for EGFR mutations using SuperARMS, with 38 (21.1%) positive using ARMS. For the entire cohort, the positive, negative, and overall concordance rates were 97.3% (95% confidence interval [CI], 86.2%-99.5%), 85.3% (95% CI, 78.6%-90.2%), and 87.8% (95% CI, 82.2%-91.8%), respectively. The kappa value was 0.69 (95% CI, 0.57-0.81). For the 61 treatment-naive patients and 119 previously treated patients, the kappa values were 0.59 (95% CI, 0.37-0.79) and 0.74 (95% CI, 0.60-0.87), respectively. SuperARMS identified 9 samples harboring the T790M mutation; of these, only 1 (11.1%) was detected using ARMS. CONCLUSION: SuperARMS is a promising plasma-based assay for EGFR mutations, including T790M. It might be useful in advanced-stage lung adenocarcinoma patients whose tissue biopsy samples are insufficient for a traditional diagnostic EGFR assay or for patients with a poor performance status. PMID- 29329945 TI - Model of acetic acid-affected growth and poly(3-hydroxybutyrate) production by Cupriavidus necator DSM 545. AB - Acetic acid, a potential growth inhibitor, commonly occurs in lignocellulosic hydrolysates. The growth of Cupriavidus necator DSM 545 and production of poly(3 hydroxybutyrate) (PHB) by this bacterium in a glucose-based medium supplemented with various initial concentrations of acetic acid are reported. The bacterium could use both glucose and acetic acid to grow and produce PHB, but acetic acid inhibited growth once its initial concentration exceeded 0.5 g/L. As acetic acid is an unavoidable contaminant in hydrolysates used as sugar sources in commercial fermentations, a mathematical model was developed to describe its impact on growth and the production of PHB. The model was shown to satisfactorily apply to growth and PHB production data obtained in media made with acetic-acid-containing hydrolysates of Napier grass and oil palm trunk as carbon substrates. PMID- 29329946 TI - A primer on caspase mechanisms. AB - Caspases belong to a diverse clan of proteolytic enzymes known as clan CD with highly disparate functions in cell signaling. The caspase members of this clan are only found in animals, and most of them orchestrate the demise of cells by the highly distinct regulated cell death phenotypes known as apoptosis and pyroptosis. This review looks at the mechanistic distinctions between the activity and activation mechanisms of mammalian caspases compared to other members of clan CD. We also compare and contrast the role of different caspase family members that program anti-inflammatory and pro-inflammatory cell death pathways. PMID- 29329947 TI - [Pseudoexfoliation syndrome and pseudoexfoliation glaucoma]. AB - Pseudoexfoliation syndrome is an age-related systemic disease that mainly affects the anterior structures of the eye. Despite a worldwide distribution, reported incidence and prevalence of this syndrome vary widely between ethnicities and geographical areas. The exfoliative material is composed mainly of abnormal cross linked fibrils that accumulate progressively in some organs such as the heart, blood vessels, lungs or meninges, and particularly in the anterior structures of the eye. The exact pathophysiological process still remains unclear but the association of genetic and environmental factors are thought to play a role in the development and progressive extracellular accumulation of exfoliative material. Hence, LOXL1 gene polymorphisms, responsible for metabolism of some components of elastic fibers and extracellular matrix, and increased natural exposure to ambient ultraviolet or caffeine consumption have been associated with pseudoexfoliation syndrome. Ophthalmological manifestations are commonly bilateral with an asymmetric presentation and can lead to severe visual impairment and blindness more frequently than in the general population, mainly related to glaucoma and cataract. Pseudoexfoliation glaucoma is a major complication of pseudoexfoliation syndrome and represents the main cause of identifiable glaucoma worldwide. Visual field progression is more rapid than that observed in primary open angle glaucoma, and filtering surgery is more frequently required. Nuclear cataract is more frequent and occurs earlier than in the general population. Owing to poorer pupil dilation and increased zonular instability, cataract surgery with pseudoexfoliation is associated with a 5- to 10-fold increase in surgical complications compared to cataract surgery without pseudoexfoliation. Some specific treatments targeting production, formation or accumulation of exfoliative material could improve the prognosis of this syndrome. PMID- 29329949 TI - Running Out of Success in HF Therapy ? PMID- 29329948 TI - NKp46 Receptor-Mediated Interferon-gamma Production by Natural Killer Cells Increases Fibronectin 1 to Alter Tumor Architecture and Control Metastasis. AB - Natural killer (NK) cells are innate lymphoid cells, and their presence within human tumors correlates with better prognosis. However, the mechanisms by which NK cells control tumors in vivo are unclear. Here, we used reflectance confocal microscopy (RCM) imaging in humans and in mice to visualize tumor architecture in vivo. We demonstrated that signaling via the NK cell receptor NKp46 (human) and Ncr1 (mouse) induced interferon-gamma (IFN-gamma) secretion from intratumoral NK cells. NKp46- and Ncr1-mediated IFN-gamma production led to the increased expression of the extracellular matrix protein fibronectin 1 (FN1) in the tumors, which altered primary tumor architecture and resulted in decreased metastases formation. Injection of IFN-gamma into tumor-bearing mice or transgenic overexpression of Ncr1 in NK cells in mice resulted in decreased metastasis formation. Thus, we have defined a mechanism of NK cell-mediated control of metastases in vivo that may help develop NK cell-dependent cancer therapies. PMID- 29329950 TI - Dual Vasopressin V1a/V2 Antagonism: The Next Step in Neurohormonal Modulation in Patients With Heart Failure? AB - Stimulation of the V1a receptor for arginine vasopressin produces myocardial and vascular effects similar to those of angiotensin II while stimulation of the V2 receptor causes fluid retention. There are no data with sustained blockade of the V1a receptor while single-dose experiments suggest benefit. Acute and chronic administration of selective V2 receptor antagonists reliably relieves dyspnea and produces diuresis without adverse effects on renal function or neurohormonal stimulation, either as adjunctive or alternative therapy to loop diuretics, but has not been shown to improve outcomes as adjunctive therapy. Combined antagonism has been tried only in single-dose studies in stable patients or over the short term in acute heart failure, with encouraging results. Based on the both the pathophysiologic rationale for additional neurohormonal blockade and these results, chronically blocking both receptors, particularly in more congested patients, may offer significant benefit either as adjunctive or alternative therapy to standard diuretics. PMID- 29329951 TI - Medical and health risks associated with communicable diseases of Rohingya refugees in Bangladesh 2017. AB - Complex emergencies remain major threats to human well-being in the 21st century. More than 300000 Rohingya people from Myanmar, one of the most forgotten minorities globally, have fled to neighboring countries over the past decades. In the recent crisis, the sudden influx of Rohingya people over a 3-month period almost tripled the accumulated displaced population in Bangladesh. Using the Rohingya people in Bangladesh as a case context, this perspective article synthesizes evidence in the published literature regarding the possible key health risks associated with the five main health and survival supporting domains, namely water and sanitation, food and nutrition, shelter and non-food items, access to health services, and information, for the displaced living in camp settlements in Asia. PMID- 29329952 TI - Molecular characterization and expression of complement factor I in Pelteobagrus vachellii during Aeromonas hydrophila infection. AB - Complement factor I (CFI) is a novel regulatory serine protease that plays an important role in resistance to pathogen infection. In this study, the CFI gene of Pelteobagrus vachellii (Pv-CFI) was sequenced and characterized. The full length cDNA of 2320 bp includes a 155 bp 5'-untranslated region (UTR), a 164 bp 3'-UTR, and a 2001 bp open reading frame (ORF) encoding a 667 amino acids. Multiple sequence alignment revealed five highly conserved domains with a typical modular architecture and identical active sites in vertebrates, indicating a conserved function. Pv-CFI mRNA was constitutively expressed in all examined tissues and most abundant in liver. During infection with Aeromonas hydrophila, Pv-CFI mRNA expression was significantly up-regulated in liver at 3-24 h, spleen at 3-48 h and head kidney at 3-48 h. The results suggest Pv-CFI plays an important role in resistance to pathogenic bacteria in P. vachellii. PMID- 29329953 TI - Canine macrophages can like human macrophages be in vitro activated toward the M2a subtype relevant in allergy. AB - The M2a subtype of macrophages plays an important role in human immunoglobulin E (IgE-mediated allergies) and other Th2 type immune reactions. In contrast, very little is known about these cells in the dog. Here we describe an in vitro method to activate canine histiocytic DH82 cells and primary canine monocyte-derived macrophages (MDMs) toward the M2a macrophages using human cytokines. For a side by-side comparison, we compared the canine cells to human MDMs, and the human monocytic cell line U937 activated towards M1 and M2a cells on the cellular and molecular level. In analogy to activated human M2a cells, canine M2a, differentiated from both DH82 and MDMs, showed an increase in CD206 surface receptor expression compared to M1. Interestingly, canine M2a, but not M1 derived from MDM, upregulated the high-affinity IgE receptor (FcepsilonRI). Transcription levels of M2a-associated genes (IL10, CCL22, TGFbeta, CD163) showed a diverse pattern between the human and dog species, whereas M1 genes (IDO1, CXCL11, IL6, TNF-alpha) were similarly upregulated in canine and human M1 cells (cell lines and MDMs). We suggest that our novel in vitro method will be suitable in comparative allergology studies focussing on macrophages. PMID- 29329954 TI - Comparative myology of the ankle of Leopardus wiedii and L. geoffroyi (Carnivora: Felidae): functional consistency with osteology, locomotor habits and hunting in captivity. AB - Leopardus wiedii (margay) is the only arboreal Neotropical felid able to climb head-first down trees, due to its ability to rotate its tarsal joint 180 degrees . A closely related, similar-sized species, L. geoffroyi (Geoffroy's cat) exhibits more typical terrestrial habits and lacks the arboreal capabilities of L. wiedii. There is osteological evidence that supports a mechanical specialization of L. wiedii's tarsal joint for inversion, but there have been no studies on the myology of this specialization. Based on comparative gross-anatomy dissections of zeugo- and autopodial muscles related to the ankle joint of one margay specimen and two Geoffroys cats, we identified myological specializations of L. wiedii that support its arboreal abilities. In addition, we documented both species hunting the same prey (domestic pigeon Columba livia, Aves: Columbidae) in captivity, to complement. We report differences in the origin, insertion and belly in 8 of the 10 dissected muscles. At least 3 of these interspecific variations can be associated with strengthening of the main muscles that command inversion/eversion movements of the tarsal joint and support the body weight in the head-down climbing position typical of L. wiedii. Frame-by-frame video reconstructions depict the sequence of movements in these species while hunting and highlight the advantages of the arboreal abilities of L. wiedii. PMID- 29329955 TI - Longitudinal predictors of early language in infants with Down syndrome: A preliminary study. AB - PURPOSE: Children with Down syndrome (DS) typically have marked delays in language development relative to their general cognitive development, with particular difficulties in expressive compared to receptive language. Although early social communication skills, including gestures and joint attention, have been shown to be related to later language outcomes in DS, knowledge is limited as to whether these factors exclusively predict outcomes, or whether other factors (e.g. perceptual and non-verbal skills) are involved. This study addressed this question. METHOD: Longitudinal data for a group of infants with DS (n = 14) and a group of typically-developing (TD) infants (n = 35) were collected on measures that have been shown to predict language in TD infants and/or those with developmental delays. These included: non-verbal mental ability, speech segmentation skills, and early social communication skills (initiating and responding to joint attention, initiating behavioural requests). RESULTS: Linear regression analyses showed that speech segmentation and initiating joint attention were the strongest predictors of later language in the TD group, whereas non-verbal mental ability and responding to joint attention were the strongest predictors of later language for infants with DS. CONCLUSIONS: Speech segmentation ability may not determine language outcomes in DS, and language acquisition may be more constrained by social communication and general cognitive skills. PMID- 29329956 TI - Herd immunity: hyperimmune globulins for the 21st century. PMID- 29329957 TI - Safety and tolerability of a novel, polyclonal human anti-MERS coronavirus antibody produced from transchromosomic cattle: a phase 1 randomised, double blind, single-dose-escalation study. AB - BACKGROUND: Middle East respiratory syndrome (MERS) is a severe respiratory illness with an overall mortality of 35%. There is no licensed or proven treatment. Passive immunotherapy approaches are being developed to prevent and treat several human medical conditions where alternative therapeutic options are absent. We report the safety of a fully human polyclonal IgG antibody (SAB-301) produced from the hyperimmune plasma of transchromosomic cattle immunised with a MERS coronavirus vaccine. METHODS: We did a phase 1 double-blind, placebo controlled, single-dose escalation trial at the National Institutes of Health Clinical Center. We recruited healthy participants aged 18-60 years who had normal laboratory parameters at enrolment, a body-mass index of 19-32 kg/m2, and a creatinine clearance of 70 mL/min or more, and who did not have any chronic medical problems that required daily oral medications, a positive rheumatoid factor (>=15 IU/mL), IgA deficiency (<7 mg/dL), or history of allergy to intravenous immunoglobulin or human blood products. Participants were randomly assigned by a computer-generated table, made by a masked pharmacist, to one of six cohorts (containing between three and ten participants each). Cohorts 1 and 2 had three participants, randomly assigned 2:1 to receive active drug SAB-301 versus normal saline placebo; cohorts 3 and 4 had six participants randomised 2:1; and cohorts 5 and 6 had ten participants, randomised 4:1. Participants received 1 mg/kg, 2.5 mg/kg, 5 mg/kg, 10 mg/kg, 20 mg/kg, or 50 mg/kg of SAB-301, or equivalent volume placebo (saline control), on day 0, and were followed up by clinical, laboratory, and pharmacokinetic assessments on days 1, 3, 7, 21, 42, and 90. The primary outcome was safety, and immunogenicity was a secondary outcome. We analysed the intention-to-treat population. This trial is registered with ClinicalTrials.gov, number NCT02788188. FINDINGS: Between June 2, 2016, and Jan 4, 2017, we screened 43 participants, of whom 38 were eligible and randomly assigned to receive SAB-301 (n=28) or placebo (n=10). 97 adverse events were reported: 64 adverse events occurred in 23 (82%) of 28 participants receiving SAB 301 (mean 2.3 adverse events per participant). 33 adverse events occurred in all ten participants receiving placebo (mean 3.3 adverse events per participant). The most common adverse events were headache (n=6 [21%] in participants who received SAB-301 and n=2 [20%] in those receiving placebo), albuminuria (n=5 [18%] vs n=2 [20%]), myalgia (n=3 [11%] vs n=1 [10%]), increased creatine kinase (n=3 [11%] vs 1 [10%]), and common cold (n=3 [11%] vs n=2 [20%]). There was one serious adverse event (hospital admission for suicide attempt) in one participant who received 50 mg/kg of SAB-301. The area under the concentration-time curve (AUC) in the 50 mg/kg dose (27 498 MUg * days per mL) is comparable to the AUC that was associated with efficacy in a preclinical model. INTERPRETATION: Single infusions of SAB-301 up to 50 mg/kg appear to be safe and well tolerated in healthy participants. Human immunoglobulin derived from transchromosomic cattle could offer a new platform technology to produce fully human polyclonal IgG antibodies for other medical conditions. FUNDING: National Institute of Allergy and Infectious Diseases, National Institutes of Health, and Biomedical Advanced Research and Development Authority. PMID- 29329958 TI - Contact tracing for the control of infectious disease epidemics: Chronic Wasting Disease in deer farms. AB - Contact tracing is a crucial component of the control of many infectious diseases, but is an arduous and time consuming process. Procedures that increase the efficiency of contact tracing increase the chance that effective controls can be implemented sooner and thus reduce the magnitude of the epidemic. We illustrate a procedure using Graph Theory in the context of infectious disease epidemics of farmed animals in which the epidemics are driven mainly by the shipment of animals between farms. Specifically, we created a directed graph of the recorded shipments of deer between deer farms in Pennsylvania over a timeframe and asked how the properties of the graph could be exploited to make contact tracing more efficient should Chronic Wasting Disease (a prion disease of deer) be discovered in one of the farms. We show that the presence of a large strongly connected component in the graph has a significant impact on the number of contacts that can arise. PMID- 29329959 TI - miR-21 suppression prevents cardiac alterations induced by d-galactose and doxorubicin. AB - d-galactose (d-gal)-induced cardiac alterations and Doxorubicin (Dox)-induced cardiomyocyte senescence are commonly used models to study cardiac aging. Accumulating evidence has suggested that microRNAs (miRNAs, miRs) are critically involved in the regulation of cellular and organismal aging and age-related diseases. However, little has been revealed about the roles of miRNAs in cardiac alterations induced by d-gal and Dox. In this study, we used miRNA arrays to investigate the dysregulated miRNAs in heart samples from 15month-old versus 2month-old male C57BL/6 mice and further validated them in d-gal-induced pseudo aging mouse model and Dox-induced cardiomyocyte senescence in vitro model. We confirmed a significant increase of miR-21 in all these models by quantitative reverse transcription polymerase chain reactions. We further demonstrated that miR-21 was able to promote Dox-induced cardiomyocyte senescence whereas suppression of miR-21 could prevent that, as determined by percentage of beta-gal positive cells and gene markers of aging. Phosphatase and tensin homolog (PTEN) was identified as a target gene of miR-21, mediating its effect in increasing cardiomyocyte senescence. Finally, we found that miR-21 knockout mice were resistant to d-gal-induced alterations in aging-markers and cardiac function. Collectively, this study provides direct evidence that inhibition of miR-21 is protective against d-gal-induced cardiac alterations and Dox-induced cardiomyocyte senescence via targeting PTEN. Inhibition of miR-21 might be a novel strategy to combat cardiac aging. PMID- 29329960 TI - The Future of LGBT Cancer Care: Practice and Research Implications. AB - OBJECTIVES: To synthesize state of the knowledge collected in this volume and propose future directions for lesbian, gay, bisexual and transgender (LGBT) cancer practice, education, research, and advocacy. DATA SOURCES: Current and extant literature. CONCLUSION: Health care disparities that are known but not yet fully elucidated in the LGBT population carry into the cancer arena. Substantially more effort is required in the domains of patient care, nursing practice, nursing and patient-facing services provider education, patient education, nursing and interprofessional research, governmental commitment, professional organization action, and patient advocacy. IMPLICATIONS FOR NURSING PRACTICE: Professional nurses are committed to the uniqueness of each individual and respect and value the health and well-being of each individual. To that commitment, oncology nurses are positioned to advance the research in the field, which will help to clarify the issues and concerns related to LGBT cancer, address the health care inequities in this important population, and lead to improved outcomes for all. PMID- 29329961 TI - [Personalised health services: Suggestions for their effective implementation]. AB - A strategy of customisation, and its subsequent practical implementation as part of personalised treatment pathways, is an appropriate approach to increase benefits for patients and to strengthen the competitive position of the provider of health services. This requires restructuring and/or reorganising measures to enable variants within the treatment pathway as a value creation process to be adapted to each individual patient and his illness, living conditions and preferences. This 'mass customisation' approach allows us to achieve the objective of a constructive interconnection of customisation and standardisation of health services. Major, rapid progress in information and communication technology plays a key part in this process. Focused design tools for mass customisation are the integration of patients into the service delivery process and the modularisation of processes and organisation. By taking into account the specificities of health services as a confidence good these design tools are featured and supported by operational and organisational tools in order to develop variants. This approach allows for high-quality health services that are perfectly tailored to individual patients' needs and, at the same time, delivered in an economic way. On this basis, customised approaches for personalised health diagnosis and therapy provide patient-focused health services that manage to apply the concept of value-based healthcare in a sophisticated and effective form. PMID- 29329962 TI - Reported contraceptive use in the month of becoming pregnant among U.S. abortion patients in 2000 and 2014. AB - OBJECTIVES: The objective was to determine whether types of contraceptive methods used by abortion patients in the month they became pregnant changed between 2000 and 2014. STUDY DESIGN: We used secondary data from the 2000 (n=10,015) and 2014 (8177) Abortion Patient Surveys. Patients were asked which contraceptive methods they had last used and when they had stopped or if they were still using them. The main outcome variable was type of contraceptive method used in the month the pregnancy began. We used bivariate logistic regressions to assess changes in the demographic and contraceptive use profiles of abortion patients. RESULTS: In both years, slightly more than half of patients reported that they had used a contraceptive method in the month they became pregnant, though the decline from 54% in 2000 to 51% in 2014 was statistically significant (p=.011). The methods most commonly reported to have been used in the month the pregnancy began were condoms (28% and 24% in 2000 and 2014, p<.001) followed by the pill (14% and 13%, p=.12). There was a statistically significant increase in the proportion of abortion patients who reported using long-acting reversible methods in the month they got pregnant (0.1% in 2000 vs. 1% in 2014, p<.001), and the estimated number of abortions attributed to these users was greater in 2014 than in 2000 (9500 vs. 1800). CONCLUSIONS: Contraceptive use patterns of abortion patients were similar in both time periods, and changes in method use mirrored changes in contraceptive use among the larger population of women. IMPLICATIONS: Postabortion contraception counseling has the potential to help nonusers find methods that meet their preferences and to help women better use their current methods. PMID- 29329963 TI - Switch to Ticagrelor in critical limb ischemia antiplatelet study (STT-CLIPS). AB - OBJECTIVE: To investigate platelet reactivity in patients with critical limb ischemia (CLI) after switching from clopidogrel to ticagrelor. BACKGROUND: High on-treatment platelet reactivity (HPR) is highly prevalent in patients with CLI treated with clopidogrel. The effect of ticagrelor in patients with CLI is not known, however. METHODS: We performed P2Y12 platelet receptor inhibition studies (VASP and VerifyNow) in 50 patients with CLI. Tests were performed before and 6+/ 1h after daily 75mg clopidogrel dose. Patients were then switched to ticagrelor 90mg twice daily for two weeks and platelet assays repeated. Patients were divided based on VerifyNow P2Y12 reaction units (PRU). Group 1: HPR defined as PRU >=208 and Group 2: Appropriate platelet inhibition (API), PRU <208. RESULTS: After two weeks of uninterrupted antiplatelet therapy, mean PRU results were 173 PRU and 71 PRU at baseline (p<0.0001) and 140 PRU and 63 PRU after 6h (p<0.0001) for clopidogrel and ticagrelor, respectively. Before daily clopidogrel dose, 36% of patients (n=18) demonstrated HPR and after 6h, 30% (n=15). One patient (2%) had HPR on ticagrelor. Ninety-four percent of patients with HPR on clopidogrel demonstrated appropriate platelet inhibition after switching to ticagrelor and all patients with API on clopidogrel remained with API after switching to ticagrelor. Six hours after daily dosing, VASP-PRI >50% was found in 42% of clopidogrel and 2% of ticagrelor treated patients. CONCLUSIONS: Among patients with CLI, ticagrelor achieved greater platelet inhibition than clopidogrel during maintenance treatment and at 6h after daily dosing. High on-treatment platelet reactivity to clopidogrel in patients with CLI can be overcome by switching to ticagrelor. PMID- 29329964 TI - Is quality of registry treatment data related to registrar experience and workload? A study of Taiwan cancer registry data. AB - BACKGROUND: Although cancer treatment information has been collected through the Cancer Registry system in Taiwan for more than 10 years, the accuracy of such data has never been evaluated. This study examined the accuracy rate between registrar experience and on-site chart review for the first course of cancer treatment. METHODS: In this retrospective chart review study, 392 randomly selected medical records from 14 hospitals were re-abstracted by experienced abstractors. The kappa coefficients of accuracy for the abstracting data were calculated against the gold standard. Correlations between registrar background and workload were then identified through regression analysis. RESULTS: Regarding surgery type, low accuracy rates were noted for gastric cancer (84.0%), oral cavity cancer (84.6%), and bladder cancer (88.9%). For chemotherapy, low accuracy rates were observed for hematopoietic diseases (81.3%) and esophageal cancer (88.0%). For radiotherapy, low accuracy rates were noted for esophageal cancer (80.0%), cervical cancer (81.8%), and lymphoma (85.7%). When stratifying by surgery type after adjustment for hospital caseload, a high accuracy rate was found for cancer registrars who had progressed from basic to advanced licenses within 5 years of graduating. CONCLUSION: The accuracy rate for the first course of cancer treatment was affected by the cancer type and the experience of cancer registrars, but it was not affected by the workload of cancer registrars. We recommend that cancer registrars with basic licenses upgrade to advanced licenses as soon as possible. Medical record collaboration should establish documentation for checklist of radiotherapy and surgical operation records. PMID- 29329965 TI - Migration of inferior vena cava filter during the surgery of tibial shaft fracture: A case report. PMID- 29329966 TI - [Overview of the knowledge and attitudes of physicians in Brazzaville on obstructive sleep apnea syndrome]. AB - INTRODUCTION: Obstructive sleep apnea syndrome (OSAS) is the leading sleep related breathing disorder. Its complications and its repercussions on the quality of life of patients make the OSAS a real public health problem. The objective of this study is to both asses physicians knowledge of OSAS and describe their attitudes towards suspect subjects in Brazzaville. MATERIAL AND METHOD: This was a cross-sectional study of 230 doctors practicing in various hospitals in the city of Brazzaville. The data collection was done by a self questionnaire developed after a bibliographic analysis on the OSAS. The questionnaire was completed without recourse to a source of information. RESULTS: Our sample consisted of 141 (70.50%) general practitioners and 59 (29.50%) specialist physicians. The average of the knowledge score was 9.34 points+/-3.03 points. The general level of physician knowledge about SAS was good in 2% of cases, average in 44% of cases and low in 54% of cases. The level of knowledge was related to the number of times the OSAS diagnosis was mentioned by the physician in his practice (P<0.001), to the doctor's grade (P=0.003); to his university of origin and to the quantity of sources of information. When faced with suspects OSAS subjects, the doctor, the doctor directed the patient in 62% of the cases in ENT and in 49% in the pulmonology. CONCLUSION: The knowledge of the doctors on the OSAS are weak; this results in poor management of this pathology in the Congo. PMID- 29329967 TI - [Prevalence of HIV-Tuberculosis co-infection and HIV impact on patients with tuberculosis in the Lubumbashi Health Zone from 2014 to 2015]. AB - BACKGROUND: Tuberculosis and HIV/AIDS are a dangerous couple in sub-Saharan Africa. The aim of this paper is to evaluate the prevalence of the co-infection tuberculosis/HIV/AIDS and its impact on issues of tuberculosis patients treated in Lubumbashi Heath Zone (LHZ). MATERIALS AND METHODS: A retrospective and transversal study was conducted through the analysis of tuberculosis patients' data admitted in the tuberculosis Health Centers for Diagnosis and treatment (HCDT) in the LHZ from January 2014 to December 2015. TB-HIV co-infection cases will be identified and the outcome will be analyzed. RESULTS: Data of 1368 patients were noted from three HCDT of the TB of the Lubumbashi ZS and among them 334 cases of co-infections were recorded. The most incriminated age range is 40 50 years. The mean of age of our patients is 32.84+/-15.32 years and the man/women sex ratio is 1.70. The most predominant clinical tuberculosis form is the extra pulmonary [EPT (52.70 %)]. Among co-infected patients, the predominant form is pulmonary (TPM-). Out of the 51 cases of deaths recorded, 23 (45.10 %) also had HIV while 28 (54.90 %) were HIV-negative. There was an increase of 11.6 % in TB-HIV/AIDS co-infection from 2014 to 2015. CONCLUSION: TB-HIV/AIDS co infection is a reality in the LHZ, especially in patients with negative bacterial TB (TPM-) and we have to pay a particular attention on the impact of HIV on the death of tuberculosis patients. PMID- 29329968 TI - Reexamining unconscious response priming: A liminal-prime paradigm. AB - Research on the limits of unconscious processing typically relies on the subliminal-prime paradigm. However, this paradigm is limited in the issues it can address. Here, we examined the implications of using the liminal-prime paradigm, which allows comparing unconscious and conscious priming with constant stimulation. We adapted an iconic demonstration of unconscious response priming to the liminal-prime paradigm. On the one hand, temporal attention allocated to the prime and its relevance to the task increased the magnitude of response priming. On the other hand, the longer RTs associated with the dual task inherent to the paradigm resulted in response priming being underestimated, because unconscious priming effects were shorter-lived than conscious-priming effects. Nevertheless, when the impact of long RTs was alleviated by considering the fastest trials or by imposing a response deadline, conscious response priming remained considerably larger than unconscious response priming. These findings suggest that conscious perception strongly modulates response priming. PMID- 29329969 TI - Inattentional blindness on the full-attention trial: Are we throwing out the baby with the bathwater? AB - When attention is otherwise engaged, observers may experience inattentional blindness, failing to notice objects or events that are presented in plain sight. In an inattentional blindness experiment, an unexpectedstimulus ispresented alongside primary-task stimuli, and its detection is probed. We evaluate a criterion that is commonly used to exclude observers from the data analysis. On the final experimental trial, observers do not perform the primary task, but instead look for anything new. Observers who fail to report the unexpected stimulus on thisfull-attention trialare excluded. On the basis of 4 hypothetical experiments and a review of 128 actual experiments from the literature, we demonstrate some potentially problematic consequences of implementing the full attention-trial exclusion criterion. Excluded observers may cluster in experimental conditions and the exclusion criterion may lead researchers to understate the pervasiveness of inattentional blindness. It may even render usblindto inattentional blindness on the full-attention trial. PMID- 29329970 TI - A prospective study on the association of sleep duration with grip strength among middle-aged and older Chinese. AB - BACKGROUND: Longitudinal studies on sleep duration and grip strength decline are limited. This study aimed to evaluate the associations of baseline sleep duration with follow-up grip strength and grip strength changeover time among a large sample of middle-aged and older Chinese. METHODS: Data from China Health and Retirement Longitudinal Study, CHARLS (2011-2015), were analyzed. Hand grip strength was measured by dynamometers twice with 4 years interval. Baseline self reported nighttime sleep duration was collected by questionnaire. Basic demographics, life habits and health status were considered as potential confounders. Multivariate linear regression models with quadratic function and mixed-effects regression models were fitted. RESULTS: Inverted U-shaped associations occurred between baseline sleep duration and follow-up grip strength for both males (betalinear = 1.011, plinear = 0.002; betaquadratic = -0.061, pquadratic = 0.014) and females (betalinear = 0.605, plinear = 0.005, betaquadratic = -0.041, pquadratic = 0.019). Compared to the sleep duration of 7 h, significant interactions of <5 hours-by-time (gamma= - 0.966 with SEE = 0.442, p = .029) in males as well as 5-7 hours-by-time (gamma= - 0.717 with SEE = 0.294, p = .015), 7-9 hours-by-time (gamma= - 0.632 with SEE = 0.311, p = .042) and >9 hours-by-time (gamma= - 1.567 with SEE = 0.560, p = .005) in females were found. CONCLUSION: For both males and females, compared to the intermediate sleep duration, shorter or longer sleep may predict the weaker follow-up grip strength and the faster rate of hand grip strength decline over time. PMID- 29329971 TI - Muscle quality is associated with dynamic balance, fear of falling, and falls in older women. PMID- 29329972 TI - Enhanced production of lactate-based polyesters in Escherichia coli from a mixture of glucose and xylose by Mlc-mediated catabolite derepression. AB - Lignocellulose-utilizing biorefinery is a promising strategy for the sustainable production of value-added products such as bio-based polymers. Simultaneous consumption of glucose and xylose in Escherichia coli was achieved by overexpression of the gene encoding Mlc, a multiple regulator of glucose and xylose uptake. This catabolite derepression gave the enhancement in the production of poly (15 mol% lactate-co-3-hydroxybutyrate), up to 65% from 50% (wild-type strain) in the cellular contents, of the Mlc-overexpressing strain of E. coli on a mixture of glucose and xylose as carbon sources. Microscopic analysis indicated that the Mlc-overexpressing strain showed the enlargement of cell volume in the presence and absence of polymer production, consequently making an expanded volumetric space available for enhanced polymer accumulation. The enhanced polymer production by the catabolite derepression was also reproducible using the biomass, Miscanthus*giganteus (hybrid Miscanthus), which was cultivated in the farm of Hokkaido University. PMID- 29329974 TI - Bariatric surgery: many benefits, but emerging risks. PMID- 29329973 TI - Altered gene expression in tree shrew retina and retinal pigment epithelium produced by short periods of minus-lens wear. AB - Hyperopic refractive error is detected by retinal neurons, which generate GO signals through a direct emmetropization signaling cascade: retinal pigment epithelium (RPE) into choroid and then into sclera, thereby increasing axial elongation. To examine signaling early in this cascade, we measured gene expression in the retina and RPE after short exposure to hyperopia produced by minus-lens wear. Gene expression in each tissue was compared with gene expression in combined retina + RPE. Starting 24 days after normal eye opening, three groups of juvenile tree shrews (n = 7 each) wore a monocular -5 D lens. The untreated fellow eye served as a control. The "6h" group wore the lens for 6 h; the "24h" group wore the lens for 24 h; each group provided separate retina and RPE tissues. Group "24hC" wore the lens for 24 h and provided combined retina + RPE tissue. Quantitative PCR was used to measure the relative differences (treated eye vs. control eye) in mRNA levels for 66 candidate genes. In the retina after 6 h, mRNA levels for seven genes were significantly regulated: EGR1 and FOS (early intermediate genes) were down-regulated in the treated eyes. Genes with secreted protein products, BMP2 and CTGF, were down-regulated, whilst FGF10, IL18, and SST were up-regulated. After 24 h the pattern changed; only one of the seven genes still showed differential expression; BMP2 was still down-regulated. Two new genes with secreted protein products, IGF2 and VIP, were up-regulated. In the RPE, consistent with its role in receiving, processing, and transmitting GO signaling, differential expression was found for genes whose protein products are at the cell surface, intracellular, in the nucleus, and are secreted. After 6 h, mRNA levels for 17 genes were down-regulated in the treated eyes, whilst four genes (GJA1, IGF2R, LRP2, and IL18) were up-regulated. After 24 h the pattern was similar; mRNA levels for 14 of the same genes were still down-regulated; only LRP2 remained up-regulated. mRNA levels for six genes no longer showed differential expression, whilst nine genes, not differentially expressed at 6 h, now showed differential expression. In the combined retina + RPE after 24 h, mRNA levels for only seven genes were differentially regulated despite the differential expression of many genes in the RPE. Four genes showed the same expression in combined tissue as in retina alone, including up-regulation of VIP despite significant VIP down-regulation in RPE. Thus, hyperopia-induced GO signaling, as measured by differential gene expression, differs in the retina and the RPE. Retinal gene expression changed between 6 h and 24 h of treatment, suggesting evolution of the retinal response. Gene expression in the RPE was similar at both time points, suggesting sustained signaling. The combined retina + RPE does not accurately represent gene expression in either retina or, especially, RPE. When gene expression signatures were compared with those in choroid and sclera, GO signaling, as encoded by differential gene expression, differs in each compartment of the direct emmetropization signaling cascade. PMID- 29329976 TI - Therapeutic potential of spinal GLP-1 receptor signaling. AB - GLP-1 signaling pathway has been well studied for its role in regulating glucose homeostasis, as well as its beneficial effects in energy and nutrient metabolism. A number of drugs based on GLP-1 have been used to treat type 2 diabetes mellitus. GLP-1R is expressed in multiple organs and numerous experimental studies have demonstrated that GLP-1 signaling pathway exhibits pro-survival functions in various disorders. In the central nervous system, stimulation of GLP 1R produces neuroprotective effects in specific neurodegenerative disorders, such as Alzheimer's disease and Parkinson's disease. The preproglucagon neurons located in the brainstem can also produce GLP-1. GLP-1 analogs have a long-acting effect and are able to pass the blood-brain barrier, which probably extends the therapeutic efficacy of GLP-1R activation. Neurodegenerative or traumatic conditions can damage the spinal cord and result in motor and sensory dysfunction. Evidence supports that GLP-1R activation in the spinal cord possesses beneficial effects and significant therapeutic potential. Herein, we review studies that have focused on GLP-1 and the spinal cord, and summarize the expression of GLP-1R and the innervation of PPG neurons in the spinal cord, as well as the potential therapeutic benefits of GLP-1R activation. PMID- 29329977 TI - Recent insights in the use of nanocarriers for the oral delivery of bioactive proteins and peptides. AB - Bioactive proteins and peptides have been used with either prophylactic or therapeutic purposes, presenting inherent advantages as high specificity and biocompatibility. Nanocarriers play an important role in the stabilization of proteins and peptides, offering enhanced buccal permeation and protection while crossing the gastrointestinal tract. Moreover, preparation of nanoparticles as oral delivery systems for proteins/peptides may include tailored formulation along with functionalization aiming bioavailability enhancement of carried proteins or peptides. Oral delivery systems, namely buccal delivery systems, represent an interesting alternative route to parenteric delivery systems to carry proteins and peptides, resulting in higher comfort of administration and, therefore, compliance to treatment. This paper outlines an extensive overview of the existing publications on proteins/peptides oral nanocarriers delivery systems, with special focus on buccal route. Manufacturing aspects of most commonly used nanoparticles for oral delivery (e.g. polymeric nanoparticles using synthetic or natural polymers and lipid nanoparticles) advantages and limitations and potential applications of nanoparticles as proteins/peptides delivery systems will also be thoroughly addressed. PMID- 29329975 TI - Risk of suicide and non-fatal self-harm after bariatric surgery: results from two matched cohort studies. AB - BACKGROUND: Bariatric surgery reduces mortality, but might have adverse effects on mental health. We assessed the risk of suicide and self-harm after bariatric surgery compared with non-surgical obesity treatment. METHODS: Suicide and non fatal self-harm events retrieved from nationwide Swedish registers were examined in two cohorts. The non-randomised, prospective Swedish Obese Subjects (SOS) study compared bariatric surgery (n=2010; 1369 vertical-banded gastroplasty, 376 gastric banding, and 265 gastric bypass) with usual care (n=2037; recruitment 1987-2001). The second cohort consisted of individuals from the Scandinavian Obesity Surgery Registry (SOReg; n=20 256 patients who had gastric bypass) matched to individuals treated with intensive lifestyle modification (n=16 162; intervention 2006-13) on baseline BMI, age, sex, education level, diabetes, cardiovascular disease, history of self-harm, substance misuse, antidepressant use, anxiolytics use, and psychiatric health-care contacts. FINDINGS: During 68 528 person-years (median 18; IQR 14-21) in the SOS study, suicides or non-fatal self-harm events were higher in the surgery group (n=87) than in the control group (n=49; adjusted hazard ratio [aHR] 1.78, 95% CI 1.23-2.57; p=0.0021); of these events, nine and three were suicides, respectively (3.06, 0.79-11.88; p=0.11). In analyses by primary procedure type, increased risk of suicide or non fatal self-harm was identified for gastric bypass (3.48, 1.65-7.31; p=0.0010), gastric banding (2.43, 1.23-4.82; p=0.011), and vertical-banded gastroplasty (2.25, 1.37-3.71; p=0.0015) compared with controls. Out of nine deaths by suicide in the SOS surgery group, five occurred after gastric bypass (two primary and three converted procedures). During 149 582 person-years (median 3.9; IQR 2.8 5.2), more suicides or non-fatal self-harm events were reported in the SOReg gastric bypass group (n=341) than in the intensive lifestyle group (n=84; aHR 3.16, 2.46-4.06; p<0.0001); of these events, 33 and five were suicides, respectively (5.17, 1.86-14.37; p=0.0017). In SOS, substance misuse during follow up was recorded in 48% (39/81) of patients treated with surgery and 28% (13/47) of controls with non-fatal self-harm events (p=0.023). Correspondingly, substance misuse during follow-up was recorded in 51% (162/316) of participants in the SOReg gastric bypass group and 29% (23/80) of participants in the intensive lifestyle group with non-fatal self-harm events (p=0.0003). The risk of suicide and self-harm was not associated with poor weight loss outcome. INTERPRETATION: Bariatric surgery was associated with suicide and non-fatal self-harm. However, the absolute risks were low and do not justify a general discouragement of bariatric surgery. The findings indicate a need for thorough preoperative psychiatric history assessment along with provision of information about increased risk of self-harm following surgery. Moreover, the findings call for postoperative surveillance with particular attention to mental health. FUNDING: US National Institutes of Health and Swedish Research Council. PMID- 29329978 TI - Data quality over data quantity in computational cognitive neuroscience. AB - We analyzed factors that may hamper the advancement of computational cognitive neuroscience (CCN). These factors include a particular statistical mindset, which paves the way for the dominance of statistical power theory and a preoccupation with statistical replicability in the behavioral and neural sciences. Exclusive statistical concerns about sampling error occur at the cost of an inadequate representation of the problem of measurement error. We contrasted the manipulation of data quantity (sampling error, by varying the number of subjects) against the manipulation of data quality (measurement error, by varying the number of data per subject) in a simulated Bayesian model identifiability study. The results were clear-cut in showing that - across all levels of signal-to-noise ratios - varying the number of subjects was completely inconsequential, whereas the number of data per subject exerted massive effects on model identifiability. These results emphasize data quality over data quantity, and they call for the integration of statistics and measurement theory. PMID- 29329979 TI - How acute stress may enhance subsequent memory for threat stimuli outside the focus of attention: DLPFC-amygdala decoupling. AB - Stress-related disorders, e.g., anxiety and depression, are characterized by decreased top-down control for distracting information, as well as a memory bias for threatening information. However, it is unclear how acute stress biases mnemonic encoding and leads to prioritized storage of threat-related information even if outside the focus of attention. In the current study, healthy adults (N = 53, all male) were randomly assigned to stress induction using the socially evaluated cold-pressor test (SECPT) or a control condition. Participants performed a task in which they were required to identify a target letter within a string of letters that were either identical to the target and thereby facilitating detection (low distractor load) or mixed with other letters to complicate the search (high load). Either a fearful or neutral face was presented on the background, outside the focus of attention. Twenty-four hours later, participants were asked to perform a surprise recognition memory test for those background faces. Stress induction resulted in increased cortisol and negative subjective mood ratings. Stress did not affect visual search performance, however, participants in the stress group showed stronger memory compared to the control group for fearful faces in the low attentional load condition. Critically, the stress induced memory bias was accompanied by decoupling between amygdala and DLFPC during encoding, which may represent a mechanism for decreased ability to filter task-irrelevant threatening background information. The current study provides a potential neural account for how stress can produce a negative memory bias for threatening information even if presented outside the focus of attention. Despite of an adaptive advantage for survival, such tendencies may ultimately also lead to generalized fear, a possibility requiring additional investigation. PMID- 29329980 TI - A mass spectrometry imaging approach for investigating how drug-drug interactions influence drug blood-brain barrier permeability. AB - There is a high need to develop quantitative imaging methods capable of providing detailed brain localization information of several molecular species simultaneously. In addition, extensive information on the effect of the blood brain barrier on the penetration, distribution and efficacy of neuroactive compounds is required. Thus, we have developed a mass spectrometry imaging method to visualize and quantify the brain distribution of drugs with varying blood brain barrier permeability. With this approach, we were able to determine blood brain barrier transport of different drugs and define the drug distribution in very small brain structures (e.g., choroid plexus) due to the high spatial resolution provided. Simultaneously, we investigated the effect of drug-drug interactions by inhibiting the membrane transporter multidrug resistance 1 protein. We propose that the described approach can serve as a valuable analytical tool during the development of neuroactive drugs, as it can provide physiologically relevant information often neglected by traditional imaging technologies. PMID- 29329981 TI - Molecular cloning and characterization of leucine aminopeptidase gene from Taenia pisiformis. AB - Leucine aminopeptidase (LAP, EC: 3.4.11.1) is an important metalloexopeptidase that catalyze the hydrolysis of amino-terminal leucine residues from polypeptides and proteins. In this study, a full length of cDNA encoding leucine aminopeptidase of Taenia pisiformis (TpLAP) was cloned by rapid amplification of cDNA-ends using the polymerase chain reaction (RACE-PCR) method. The full-length cDNA of the TpLAP gene is 1823 bp and contains a 1569 bp ORF encoding 533 amino acids with a putative mass of 56.4 kDa. TpLAP contains two characteristic motifs of the M17LAP family in the C-terminal sequence: the metal binding site 265 [VGKG]-271 and the catalytic domain motif 351-[NTDAEGRL]-357. The soluble GST TpLAP protein was expressed in Escherichia coli Transetta (DE3) and four specific anti-TpLAP monoclonal antibodies (mAbs) were prepared. In enzymatic assays, the optimal activity was observed at pH 9.5 at 45 degrees C. GST-TpLAP displayed a hydrolyzing activity for the Leu-pNA substrate with a maximum activity of 46 U/ml. The enzymatic activity was significantly enhanced by Mn2+ and completely inhibited by 20 nM bestatin and 0.15 mM EDTA. The native TpLAP was detected specifically in ES components of adult T. pisiformis by western blotting using anti-TpLAP mAb as a probe. Quantitative real-time PCR revealed that the TpLAP gene was expressed at a high level in adult worm tissues, especially in the gravid proglottids (50.71-fold). Immunolocalization analysis showed that TpLAP was located primarily in the subtegumental parenchyma zone and the uterine wall of adult worms. Our results indicate that TpLAP is a new member of the M17LAP family and can be considered as a stage-differentially expressed protein. These findings might provide new insights into the study of the mechanisms of growth, development and survival of T. pisiformis in the final host and have potential value as an attractive target for drug therapy or vaccine intervention. PMID- 29329982 TI - Gongylonema pulchrum infection in the human oral cavity: A case report and literature review. AB - Gongylonema infection is a zoonotic disease occurring throughout the world and is mainly caused by consumption of contaminated water and raw food. Adult Gongylonema worms can exist as parasites in the human body for up to 10 years and cause symptoms of local irritation in the oral cavity, esophagus, and pharynx. Herein, we report a rare case in which live Gongylonema pulchrum was detected and extracted from the oral cavity of a woman. The pathogen was confirmed as G. pulchrum on the basis of microscopic examination and morphologic analysis. The patient's symptoms resolved immediately after surgical removal of the parasite, and the patient has been advised not to drink water that has not been boiled and to avoid consuming unwashed raw vegetables. PMID- 29329984 TI - Infralimbic dopamine D2 receptors mediate glucocorticoid-induced facilitation of auditory fear memory extinction in rats. AB - The infralimbic (IL) cortex of the medial prefrontal cortex plays an important role in the extinction of fear memory. Also, it has been showed that both brain glucocorticoid and dopamine receptors are involved in many processes such as fear extinction that drive learning and memory; however, the interaction of these receptors in the IL cortex remains unclear. We examined a putative interaction between the effects of glucocorticoid and dopamine receptors stimulation in the IL cortex on fear memory extinction in an auditory fear conditioning paradigm in male rats. Corticosterone (the endogenous glucocorticoid receptor ligand), or RU38486 (the synthetic glucocorticoid receptor antagonist) microinfusion into the IL cortex 10 min before test 1 attenuated auditory fear expression at tests 1-3, suggesting as an enhancement of fear extinction. The effect of corticosterone, but not RU38486 was counteracted by the dopamine D2 receptor antagonist sulpiride pre-treatment administered into the IL (at a dose that failed to alter freezing behavior on its own). In contrast, intra-IL infusion of the dopamine D1 receptor antagonist SCH23390 pre-treatment failed to alter freezing behavior. These findings provide evidence for the involvement of the IL cortex D2 receptors in CORT-induced facilitation of fear memory extinction. PMID- 29329983 TI - Attenuation of noise-induced hyperactivity in the dorsal cochlear nucleus by pre treatment with MK-801. AB - It has previously been hypothesized that hyperactivity of central auditory neurons following exposure to intense noise is a consequence of synaptic alterations. Recent studies suggest the involvement of NMDA receptors in the induction of this hyperactive state. NMDA receptors can mediate long term changes in the excitability of neurons through their involvement in excitotoxic injury and long term potentiation and depression. In this study, we examined the effect of administering an NMDA receptor blocker on the induction of hyperactivity in the dorsal cochlear nucleus (DCN) following intense sound exposure. Our prediction was that if hyperactivity induced by intense sound exposure is dependent on NMDA receptors, then blocking these receptors by administering an NMDA receptor antagonist just before animals are exposed to intense sound should reduce the degree of hyperactivity that subsequently emerges. We compared the levels of hyperactivity that develop in the DCN after intense sound exposure to activity recorded in control animals that were not sound exposed. One group of animals to be sound exposed received intraperitoneal injection of MK-801 twenty minutes preceding the sound exposure, while the other group received injection of saline. Recordings performed in the DCN 26-28 days post-exposure revealed increased response thresholds and widespread increases in spontaneous activity in the saline-treated animals that had been sound exposed, consistent with earlier studies. The animals treated with MK-801 preceding sound exposure showed similarly elevated thresholds but an attenuation of hyperactivity in the DCN; the attenuation was most robust in the high frequency half of the DCN, but lower levels of hyperactivity were also found in the low frequency half. These findings suggest that NMDA receptors are an important component of the hyperactivity inducing mechanism following intense sound exposure. They further suggest that blockade of NMDA receptors may offer a useful therapeutic approach to preventing induction of noise-induced hyperactivity-related hearing disorders, such as tinnitus and hyperacusis. PMID- 29329985 TI - The scavenger activity of the human P2X7 receptor differs from P2X7 pore function by insensitivity to antagonists, genetic variation and sodium concentration: Relevance to inflammatory brain diseases. AB - Activation of P2X7 receptors is widely recognised to initiate proinflammatory responses. However P2X7 also has a dual function as a scavenger receptor which is active in the absence of ATP and plasma proteins and may be important in central nervous system (CNS) diseases. Here, we investigated both P2X7 pore formation and its phagocytic function in fresh human monocytes (as a model of microglia) by measuring ATP-induced ethidium dye uptake and fluorescent bead uptake respectively. This was studied in monocytes expressing various polymorphic variants as well as in the presence of different P2X7 antagonists and ionic media. P2X7-mediated phagocytosis was found to account for about half of Latrunculin (or Cytochalasin D)-sensitive bead engulfment by fresh human monocytes. Monocytes harbouring P2X7 Ala348Thr or Glu496Ala polymorphic variants showed increase or loss of ethidium uptake respectively, but these changes in pore formation did not always correspond to the changes in phagocytosis of YG beads. Unlike pore function, P2X7-mediated phagocytosis was not affected by three potent selective P2X7 antagonists and remained identical in Na+ and K+ media. Taken together, our results show that P2X7 is a scavenger receptor with important function in the CNS but its phagocytic function has features distinct from its pore function. Both P2X7 pore formation and P2X7-mediated phagocytosis should be considered in the design of new P2X7 antagonists for the treatment of CNS diseases. PMID- 29329986 TI - Prospects in non-invasive assessment of liver fibrosis: Liquid biopsy as the future gold standard? AB - Liver fibrosis is the result of persistent liver injury, and is characterized by sustained scar formation and disruption of the normal liver architecture. The extent of fibrosis is considered as an important prognostic factor for the patient outcome, as an absence of (early) treatment can lead to the development of liver cirrhosis and hepatocellular carcinoma. Till date, the most sensitive and specific way for the diagnosis and staging of liver fibrosis remains liver biopsy, an invasive diagnostic tool, which is associated with high costs and discomfort for the patient. Over time, non-invasive scoring systems have been developed, of which the measurements of serum markers and liver stiffness are validated for use in the clinic. These tools lack however the sensitivity and specificity to detect small changes in the progression or regression of both early and late stages of fibrosis. Novel non-invasive diagnostic markers with the potential to overcome these limitations have been developed, but often lack validation in large patient cohorts. In this review, we will summarize novel trends in non-invasive markers of liver fibrosis development and will discuss their (dis-)advantages for use in the clinic. PMID- 29329987 TI - Quantitative proteomics in Friedreich's ataxia B-lymphocytes: A valuable approach to decipher the biochemical events responsible for pathogenesis. AB - Friedreich's ataxia (FRDA) represents the most frequent type of autosomal recessively inherited ataxia and is caused by the deficiency of frataxin, a mitochondrial protein. It is known that frataxin-deficiency leads to alterations in cellular and mitochondrial iron metabolism and impacts in the cell physiology at several levels. Frataxin is thought to play a role in iron-sulfur cluster biogenesis and heme synthesis. Currently, cellular antioxidant defense is dysregulated when frataxin is deficient, which exacerbates oxidative damage in FRDA. Moreover, alterations in lipid metabolism have been observed in several models of the disease. To better understand the biochemical sequelae of frataxin reduction, global protein expression analysis was performed using quantitative proteomic experiments in Friedreich's ataxia patient-derived B-lymphocytes as compared to controls. We were able to confirm a subset of changes in these cells and importantly, we observed previously unreported signatures of protein expression. Among the novel protein signatures that we have identified, the decrease in CHCHD4 might partly explain some aspects of the molecular pathogenesis of FRDA. The identification of a core set of proteins changing in the FRDA pathogenesis is a useful tool in trying to decipher the function(s) of frataxin in order to clarify the mitochondrial metabolic disease process. PMID- 29329989 TI - Reassessment of Right Middle Lobe Lung Cancer: Comparison of Segments 4 and 5 Tumors. AB - BACKGROUND: The purpose of this study was to elucidate the clinical behavior of right middle lobe lung cancer, with focus on the tumor location. METHODS: We reviewed retrospectively 711 patients who underwent lobectomy or bilobectomy for clinical stage I non-small cell lung cancer (upper lobe, 346; middle lobe, 82; lower lobe, 283). Factors affecting survival were assessed by log rank tests and Cox regression analyses. RESULTS: The prognosis of patients with segment 5 tumors (n = 39) was significantly worse than that of patients with segment 4 tumors (n = 43; 5-year overall survival rates, 69.8% versus 87.6%, p = 0.040; and 5-year recurrence-free survival rates, 58.4% versus 73.0%, p = 0.029). Segment 5 tumors were an independent factor for poor prognosis in multivariable Cox regression analysis, and tended to cause more pathologic mediastinal lymph node metastases than segment 4 tumors (12.8% versus 2.3%, p = 0.097). Compared with tumors in the other lobes, patients with segment 4 tumors demonstrated no significant difference in prognosis; however, patients with segment 5 tumors demonstrated a significantly and outstandingly worse prognosis than patients with other lobe tumors (5-year overall survival rates, 69.8% versus 82.2%, p = 0.020; and 5-year recurrence-free survival rates, 58.4% versus 71.4%, p = 0.0071). CONCLUSIONS: Patients with segment 5 tumors had a worse prognosis than patients with segment 4 and other lobe tumors. We speculate that is because segment 5 tumors cause more metastases to the mediastinal lymph nodes. Tumor location was an important prognostic factor for patients with right middle lobe lung cancer. PMID- 29329988 TI - Rethinking Medicaid Coverage and Payment Policy to Promote High Value Care: The Case of Long-Acting Reversible Contraception. AB - CONTEXT: Long-acting reversible contraception (LARC) is the most effective reversible method to prevent unplanned pregnancies. Variability in state-level policies and the high cost of LARC could create substantial inconsistencies in Medicaid coverage, despite federal guidance aimed at enhancing broad access. This study surveyed state Medicaid payment policies and outreach activities related to LARC to explore the scope of services covered. METHODS: Using publicly available information, we performed a content analysis of state Medicaid family planning and LARC payment policies. Purposeful sampling led to a selection of nine states with diverse geographic locations, political climates, Medicaid expansion status, and the number of women covered by Medicaid. RESULTS: All nine states' Medicaid programs covered some aspects of LARC. However, only a single state's payment structure incorporated all core aspects of high-quality LARC service delivery, including counseling, device, insertion, removal, and follow-up care. Most states did not explicitly address counseling, device removal, or follow-up care. Some states had strategies to enhance access, including policies to increase device reimbursement, stocking and delivery programs to remove cost barriers, and covering devices and insertion after an abortion. CONCLUSIONS: Although Medicaid policy encourages LARC methods, state payment policies frequently fail to address key aspects of care, including counseling, follow-up care, and removal, resulting in highly variable state-level practices. Although some states include payment policy innovations to support LARC access, significant opportunities remain. PMID- 29329990 TI - Transcatheter Aortic Valve Implantation in Morphologically Complex Root Aneurysms. AB - Performing transcatheter aortic valve implantation in the presence of aneurysmatic aortopathy is widely contraindicated but needs to be taken into account as a bailout strategy in selected patients. Deliberate preoperative assessment of measurements becomes the crucial key element in this context. After meticulous valve selection, retrograde access is obtained through the right subclavian artery additionally serving as a backup arterial cannulation site in case of conversion. Transcatheter aortic valve implantation is then performed through the transapical route. Transcatheter aortic valve implantation in complex aneurysmatic aortic morphology is feasible in highly selected patients after comprehensive preoperative evaluation. The present article describes our initial experience, safeguards, and technical details. PMID- 29329991 TI - Dynamic contrast-enhanced EUS for quantification of tumor perfusion in colonic cancer: a prospective cohort study. AB - BACKGROUND AND AIMS: Dynamic contrast-enhanced EUS (CE-EUS) for quantification of perfusion in colonic tumors has not previously been reported in the literature. The aim of this study was to investigate correlations between perfusion parameters and vessel density assessed by immunohistochemical staining with antibodies toward CD31 and CD105. METHODS: We conducted a prospective clinical study of 28 patients with left-sided colonic adenocarcinoma who underwent CE-EUS and left-sided hemicolectomy within 2 weeks. CE-EUS recordings were analyzed in 2 regions of interest: the entire tumor and the most enhanced area. Immunohistochemical staining with CD31 and CD105 was performed on tumor tissue sections. The slides were manually scanned for highly vascularized areas, and counting of vessels was performed in hotspots within the tumor and invasive front. New vasculature was assessed by CD105. Associations between CE-EUS and CD31 and CD105 were investigated using Spearman correlation. RESULTS: We found significant P values for the correlation between CD31 and rise time (rho = .603 [95% confidence interval (95% CI), .238-.816]; P = .001) in tumor tissue and for the correlation between CD31 and rise time (rho = .50 [95% CI, .201-.695]; P = .008) and fall time (rho = .52 [95% CI, .204-.723]; P = .006) corresponding to the invasive front. We found no correlations between perfusion values evaluated by CE-EUS and CD105. CONCLUSIONS: Our results show a significant correlation for vessel density evaluated by CD31 and perfusion parameters evaluated by CE-EUS. This may be the first step toward using real-time CE-EUS for monitoring antiangiogenic therapies in colonic cancer. (Clinical trial registration number: NCT02324023.). PMID- 29329993 TI - Pulmonary arterial hypertension in four patients treated by leflunomide. AB - Pulmonary arterial hypertension (PAH) is a rare disorder that can be drug induced, mostly following treatment by appetite-suppressant drugs. We report four cases of patients who developed PAH following a treatment by leflunomide for rheumatoid arthritis, psoriatic arthritis or undetermined connective tissue disease. All patients described a progressive dyspnea from grade II to IV of NYHA classification; clinical examination found signs of heart failure. PAH was finally diagnosed and confirmed by right heart catheterisation. Haemodynamic explorations found pre-capillary pulmonary hypertension with mean pulmonary arterial pressure above 25mmHg, and pulmonary capillary wedge pressure under 15mmHg. Explorations of this pre-capillary pulmonary hypertension were conducted according to international guidelines: pulmonary or chronic thromboembolic aetiologies were excluded after ventilation/perfusion lung scan and high resolution computed tomography. All other etiologic explorations were negative. Imputability of leflunomide was finally retained. Leflunomide was stopped for all patients; three of them received specific PAH treatments. A favourable clinical and/or haemodynamic evolution was observed for all patients. The conclusions of the investigations conducted by our pharmacovigilance centre were communicated to the European Medicines Agency, leading to the addition of "pulmonary hypertension" in the paragraph "special warning and precautions of use" of the package leaflet of leflunomide. PMID- 29329992 TI - EUS elastography (strain ratio) and fractal-based quantitative analysis for the diagnosis of solid pancreatic lesions. AB - BACKGROUND AND AIMS: EUS elastography is useful in characterizing solid pancreatic lesions (SPLs), and fractal analysis-based technology has been used to evaluate geometric complexity in oncology. The aim of this study was to evaluate EUS elastography (strain ratio) and fractal analysis for the characterization of SPLs. METHODS: Consecutive patients with SPLs were prospectively enrolled between December 2015 and February 2017. Elastographic evaluation included parenchymal strain ratio (pSR) and wall strain ratio (wSR) and was performed with a new compact US processor. Elastographic images were analyzed using a computer program to determine the 3-dimensional histogram fractal dimension. A composite cytology/histology/clinical reference standard was used to assess sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating curve. RESULTS: Overall, 102 SPLs from 100 patients were studied. At final diagnosis, 69 (68%) were malignant and 33 benign. At elastography, both pSR and wSR appeared to be significantly higher in malignant as compared with benign SPLs (pSR, 24.5 vs 6.4 [P < .001]; wSR, 56.6 vs 15.3 [P < .001]). When the best cut-off levels of pSR and wSR at 9.10 and 16.2, respectively, were used, sensitivity, specificity, positive predictive value, negative predictive value, and area under the receiver operating curve were 88.4%, 78.8%, 89.7%, 76.9%, and 86.7% and 91.3%, 69.7%, 86.5%, 80%, and 85.7%, respectively. Fractal analysis showed a significant statistical difference (P = .0087) between the mean surface fractal dimension of malignant lesions (D = 2.66 +/- .01) versus neuroendocrine tumor (D = 2.73 +/- .03) and a statistical difference for all 3 channels red, green, and blue (P < .0001). CONCLUSIONS: EUS elastography with pSR and fractal-based analysis are useful in characterizing SPLs. (Clinical trial registration number: NCT02855151.). PMID- 29329994 TI - Authors' response to the comments to "Structured pharmacist-led intervention programme to improve medication adherence in COPD patients: A randomized controlled study". PMID- 29329995 TI - Multifunctional hybrid graphene oxide for circulating tumor cell isolation and analysis. AB - Even in 21st century, >90% cancer-associated deaths are caused by metastatic disease. Circulating tumor cells (CTCs), which circulate in the blood stream after release from primary tumors, extravasate and form fatal metastases in different organs. Several clinical trials indicate that CTCs can be used as a liquid biopsy of tumors for early diagnosis of cancers. Since CTCs are extremely rare and exhibit heterogeneous biology due to epithelial-mesenchymal transition (EMT), oncologists continue to face enormous challenges in using CTCs as a true "liquid biopsy" for cancer patients. Recent advancements in nanoscience allow us to design nano-architectures with the capability of targeted CTCs isolation and identification. In the current review, we discuss contribution from different groups on the development of graphene oxide based nanoarchitecture for effective isolation and accurate identification of CTCs from whole blood. In the last few years, using zero-dimensional (0D), two dimensional (2D) and three dimensional (3D) multifunctional hybrid graphene oxide (GO), different types of nanoarchitectures have been designed. These nanoarchitectures represent a highly powerful platform for CTC diagnosis. We discuss the major design criteria that have been used to develop hybrid GO nanoarchitectures for selective capture and accurate identification of heterogeneous CTCs from whole blood. At the end, we conclude with the promises, major challenges, and prospect to clinically translate the identification of CTCs using GO based nanotechnology. PMID- 29329996 TI - To prep or not to prep - that is the question: A randomized trial on the use of antiflatulent medication as part of bowel preparation for patients having image guided external beam radiation therapy to the prostate. AB - INTRODUCTION: Radiation therapy is a standard treatment option for prostate cancer. With growing use of escalated doses and tighter margins, procedures to limit rectal size variation are needed to reduce prostate motion, increase treatment accuracy, and minimize rectal toxicity. This prospective study was done to determine whether the introduction of an antiflatulent medication would decrease rectal distention at computed tomography (CT) simulation and throughout a course of radiation therapy. METHODS AND MATERIALS: Patients undergoing a radical course of radiation therapy to the prostate/prostate bed were eligible to participate. Participants were randomly assigned to the intervention arm (antiflatulent medication) or the control arm (no medication). For each participant, the number of CT simulation rescans was recorded. Rectal diameters were measured on CT simulation and treatment cone beam CT scans. Acute rectal toxicities were assessed at baseline and weekly using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE), version 4.0. A chi2 analysis was used to compare the number of participants requiring a rescan in each study arm. Change in rectal diameter over time was assessed using repeated measures analysis of variance. RESULTS: A total of 78 patients participated, with equal numbers assigned to each study arm. There was no significant difference between arms in the number of participants requiring a CT simulation rescan (P = .5551). There was no significant variation in rectal diameter between arms (P = .8999); however, there was a significant effect of time (P = .0017) and a significant interaction effect between study arm and time on rectal diameter (P = .0141). No acute rectal toxicities above grade 2 were reported. CONCLUSIONS: The addition of antiflatulent medication did not affect the frequency of CT simulation rescans. Both time and the interaction between study arm and time had a statistically significant effect on rectal diameter, although neither finding was clinically significant. Instead, standardized bowel preparation education developed for this study may have been sufficient to limit rectal size variation. PMID- 29329997 TI - Clinical log data analysis for assessing the accuracy of the CyberKnife fiducial free lung tumor tracking system. AB - PURPOSE: The CyberKnife Xsight Lung Tracking (XLT) and 1-View tracking systems can synchronize beam targeting to a visible lung tumor with respiratory motion during irradiation without requiring internal fiducial markers. The systems use a correlation model that relates external marker positions to tumor positions as well as a prediction model that predicts the target's future position. In this study, the correlation and prediction model uncertainties related to the CyberKnife fiducial-free tumor tracking system were evaluated using clinical log data. METHODS AND MATERIALS: Data from 211 fractions in 42 patients with lung tumors were analyzed. Log files produced by the CyberKnife Synchrony system were acquired after each treatment; the mean correlation and prediction errors for each patient were calculated. Additionally, we examined the tracking tumor related parameters and analyzed the relationships between the model errors and tracking tumor-related parameters. RESULTS: The overall means +/- standard deviations (SDs) of the correlation errors were 0.70 +/- 0.43 mm, 0.36 +/- 0.16 mm, 0.44 +/- 0.22 mm, and 0.95 +/- 0.43 mm for the superoinferior (SI), left right (LR), anteroposterior (AP), and radial directions, respectively. The overall means +/- SDs of the prediction errors were 0.13 +/- 0.11 mm, 0.03 +/- 0.02 mm, 0.03 +/- 0.02 mm, and 0.14 +/- 0.11 mm for the SI, LR, AP, and radial directions, respectively. There were no significant differences in these errors between the XLT and 1-View tracking methods. The tumor motion amplitude was moderately associated with the correlation error and strongly related to the prediction error in the SI and radial directions. CONCLUSIONS: Clinical log data analysis can be used to determine the necessary margin sizes in treatment plans to compensate for correlation and prediction errors in the CyberKnife fiducial free lung tumor tracking system. The tumor motion amplitude may facilitate margin determination. PMID- 29329998 TI - Common error pathways seen in the RO-ILS data that demonstrate opportunities for improving treatment safety. AB - PURPOSE: The Radiation Oncology Incident Learning System (RO-ILS) receives event reports from facilities across the country. This effort extracted common error pathways seen in the data. These pathways, expressed as fault trees, demonstrate the need for, and opportunities for, preventing these errors and/or limiting their propagation to treatment. METHODS AND MATERIALS: As of the third quarter of 2016, 2344 event reports had been submitted to RO-ILS and reviewed. A total of 396 of the reports judged highest priority were rereviewed and assigned up to 3 keywords to classify events. Based on patterns among the keyword assignments, the data were further aggregated into pathways leading to 3 general error types: "problematic plan approved for treatment," "wrong shift instructions given to therapists," and "wrong shift performed at treatment." Fault trees were created showing how different errors at different stages in the treatment process combine to flow into these general error types. RESULTS: A total of 173 of the 396 (44%) events were characterized as belonging to 1 of these 3 general error types. Ninety-nine events were defined as "problematic plan approved for treatment," 40 as "wrong shift instructions given to therapists," and 34 as "wrong shift performed at treatment." Seventy-six of these events (44%) resulted in incorrectly delivered treatment. Event discovery was by therapists (n = 76), physicists (n = 45), physicians (n = 23), dosimetrists (n = 15), or not identified (n = 9); 5 events were found as a result of the patient questioning the staff. For the event type "problematic plan approved for treatment," 64 of the 99 (65%) events were attributable to physician error: incorrect target or dosing pattern prescribed. CONCLUSIONS: Data extracted from RO-ILS event reports demonstrate common error pathways in radiation oncology that propagate all the way to treatment. Additional study and coordination of efforts is needed to develop and share best practices to address the sources of these errors and curtail their propagation. PMID- 29329999 TI - Understanding melanocortin-4 receptor control of neuronal circuits: Toward novel therapeutics for obesity syndrome. AB - It is well known that melanocortin-4 receptors (MC4Rs) and central melanocortin pathways regulate food intake, energy expenditure, and glucose homeostasis. Importantly, MC4R deficiency is the most common monogenic cause of human obesity. Interestingly, MC4Rs expressed by distinct central nuclei are responsible for the different physiological function of MC4R stimulation. In addition, MC4Rs activate multiple intracellular and/or synaptic signaling molecules for the regulation of neuronal circuits. Therefore, MC4Rs and the downstream signal molecules are plausible targets for development of novel therapeutics against obesity and obesity-related metabolic disorders. In this review, we discuss recent findings on the neuronal circuits and signaling molecules that are responsible for MC4R control energy balance and autonomic function. Further, we review status of MC4R agonists as novel therapeutics for obesity syndrome. We believe that comprehensive understanding of signaling molecules involved in MC4R control of neuronal circuits will help to design MC4R agonists as safe and effective anti obesity drugs. PMID- 29330000 TI - Histotripsy Treatment of Benign Prostatic Enlargement Using the Vortx Rx System: Initial Human Safety and Efficacy Outcomes. AB - OBJECTIVE: To assess clinical safety (primary) and efficacy (secondary) of histotripsy for treatment of symptomatic benign prostatic enlargement in a first in human study. METHODS: Twenty-five male subjects with moderate to severe lower urinary tract symptoms, prostate size between 30 and 80 g, and no evidence of prostate cancer were enrolled at 2 sites in a prospective, single-arm study. Treatment consisted of acoustic energy delivery through the perineum with integrated real-time transrectal ultrasound monitoring using the Vortx Rx system. Follow-up evaluations were performed on postoperative day 1 and 1, 3, and 6 months. RESULTS: Twenty-five men underwent histotripsy treatment with no serious intraoperative adverse events. Postoperatively, 3 cases of transient urinary retention (<3 days), 1 case of urinary retention (8 days in duration, defined as serious), a minor anal abrasion, and microscopic hematuria were considered device related adverse events. Debulking of targeted prostate tissue was not observed with transrectal ultrasound imaging or with endoscopic visualization, and clinically meaningful improvement in uroflow or postvoid residual urine (PVR) did not occur. However, International Prostate Symptom Score improvement at 1 month was 12.5 (52.4%) +/- 6.6 points (n = 25), at 3 months was 11.9 (50.8%) +/- 7.6 points (n = 24), and at 6 months was 10.4 (44.0%) +/- 7.6 points (n = 24) (P <.001). CONCLUSION: Prostate histotripsy was safe and well tolerated in this pilot human trial with improvement in lower urinary tract symptoms. PMID- 29330001 TI - In-bore 3.0-T Magnetic Resonance Imaging-guided Transrectal Targeted Prostate Biopsy in a Repeat Biopsy Population: Diagnostic Performance, Complications, and Learning Curve. AB - OBJECTIVE: To evaluate the diagnostic performance and complication rate of the in bore magnetic resonance imaging-guided transrectal targeted prostate biopsy (MRGB) in a repeat biopsy population on the basis of a nearly 4-year learning curve (2014-2017). MATERIALS AND METHODS: A total of 142 consecutive males with previous biopsies and persistent suspicion of prostate cancer (PCa) due to high prostate-specific antigen level initially underwent MRGB in the case of prostate imaging reporting and data system (PI-RADS) 3-5 lesions. Cancer detection rate (CDR), number and length of cores, biopsy time, operator experience, complications, and prediction of clinically significant (cs) PCa (Gleason score >=7) were investigated. RESULTS: PCa was found in 57% of patients. CDR in PI-RADS 3, 4, and 5 lesions were 46%, 52%, and 74%, respectively. csPCa was found in 9%, 25%, and 48% of patients. In univariate analysis the PI-RADS score (P = .0067) was a significant predictor of csPCa. In the multivariate logistic regression, age (P = .0007), number of previous biopsies (P = .0236), and prostate-specific antigen density (P = .0250) were significant predictors of csPCa. Location and size of the index lesion, number and length of cores obtained, and operator experience did not affect CDR. Concerning learning curve, biopsy time and number of cores obtained improved significantly after 10 procedures. Complications requiring medical intervention were seen in 6% (infections 2%). CONCLUSION: In a re-biopsy setting the MRGB showed sufficient diagnostic performance in detecting csPCa in PI-RADS 3-5 lesions, with low complication rate. The skill of performing biopsy is quickly acquired, and location of index lesion did not have an impact on CDR. PMID- 29330002 TI - Choosing a healthy and sustainable diet: A three-level approach for understanding the drivers of the Italians' dietary regime over time. AB - Dietary patterns play key roles in health promotion and in preserving the environment. A growing number of studies show the importance of individual factors on food consumption choices, such as socio-economic status, lifestyle variables and contextual and social factors that characterize the geographical area in which individuals reside. The Mediterranean Diet is a sustainable diet that respects the environment, thus reducing per capita emissions from food production in respect to less sustainable diet. The aim of this paper is to determine the Italians' prevailing food patterns using a composite indicator and to identify which factors determine a higher adherence to the Mediterranean Diet in Italy. By using 15 waves of the ISTAT "Aspect of Daily Life" survey, we constructed an original data set and referred to the multilevel approach which enabled us to distinguish between temporal and cross-sectional effects thus providing valuable insights to policy makers and stakeholders in order to promote the Mediterranean Diet and reap environmental and public health. The results show that education plays an important role in determining food consumption behavior while the tendency to practice sports on a regular basis and to have breakfast and lunch at home positively influence people's adherence to this diet. PMID- 29330003 TI - Effects of 5-HT5A receptor blockade on amnesia or forgetting. AB - Previously the effects (0.01-3.0 mg/kg) of post-training SB-699551 (a 5-HT5A receptor antagonist) were reported in the associative learning task of autoshaping, showing that SB-699551 (0.1 mg/kg) decreased lever-press conditioned responses (CR) during short-term (STM; 1.5-h) or (3.0 mg/kg) long-term memory (LTM; 24-h); relative to the vehicle animals. Moreover, as pro-cognitive efficacy of SB-699551 was reported in the ketamine-model of schizophrenia. Hence, firstly aiming improving performance (conditioned response, CR), in this work autoshaping lever-press vs. nose-poke response was compared; secondly, new set of animals were randomly assigned to SB-699551 plus forgetting or amnesia protocols. Results show that the nose-poke operandum reduced inter-individual variance, increased CR and produced a progressive CR until 48-h. After one week of no training/testing sessions (i.e., interruption of 216 h), the forgetting was observed; i.e., the CR% of control-saline group significantly decreased. In contrast, SB-699551 at 0.3 and 3.0 mg/kg prevents forgetting. Additionally, as previously reported the non-competitive NMDA receptor antagonist dizocilpine (0.2 mg/kg) or the non selective cholinergic antagonist scopolamine (0.3 mg/kg) decreased CR in STM. SB 699551 (0.3 mg/kg) alone also produced amnesia-like effect. Co-administration of SB-699551-dizocilpine or SB-699551-scopolamine reversed the SB-699551 induced amnesic effects in LTM (24-h). Nose-poke seems to be a reliable operandum. The anti-amnesic and anti-forgetting mechanisms of amnesic SB-699551-dose remain unclear. The present findings are consistent with the notion that low doses of 5 HT5A receptor antagonists might be useful for reversing memory deficits associated to forgetting and amnesia. Of course, further experiments are necessary. PMID- 29330005 TI - A Phase I Study of Irinotecan, Capecitabine (Xeloda), and Oxaliplatin in Patients With Advanced Colorectal Cancer. AB - BACKGROUND: The objective of the present phase I study was to define the dose limiting toxicities (DLTs) and maximum tolerated dose (MTD) of irinotecan, capecitabine, and oxaliplatin given in combination (IXO regimen) to patients with previously untreated, unresectable advanced or metastatic colorectal cancer (CRC). PATIENTS AND METHODS: Patients received oxaliplatin followed by irinotecan as intravenous infusions on day 1, with oral capecitabine taken twice daily (BID) on days 2 to 15 of a 3-week cycle. The dose ranges were explored as follows: oxaliplatin, 75 to 120 mg/m2; irinotecan, 160 to 230 mg/m2; capecitabine, 750 to 1000 mg/m2 BID. Dose escalation was performed individually for each drug at each dose level according to the type and severity of toxicity encountered in the previous cohort. RESULTS: A total of 39 patients were enrolled at 7 dose levels and the MTD. The recommended doses for phase II evaluation were oxaliplatin 100 mg/m2, irinotecan 160 mg/m2, and capecitabine 950 mg/m2 BID. Diarrhea and febrile neutropenia were DLTs. Of the 39 enrolled patients, 26 (67%) had confirmed objective responses. The median progression-free survival was 11 months, and the median overall survival was 25 months. The survival rate at 5 years was 23%. CONCLUSION: The IXO regimen has a manageable toxicity profile with promising antitumor activity as first-line treatment of advanced and metastatic CRC. PMID- 29330004 TI - Recovery of stress-impaired social behavior by an antagonist of the CRF binding protein, CRF6-33, in the bed nucleus of the stria terminalis of male rats. AB - Social stress is recognized to promote the development of neuropsychiatric and mood disorders. Corticotropin releasing factor (CRF) is an important neuropeptide activated by social stress, and it contributes to neural and behavioral adaptations, as indicated by impaired social interactions and anhedonic effects. Few studies have focused on the role of the CRF binding protein (CRFBP), a component of the CRF system, and its activity in the bed nucleus of stria terminalis (BNST), a limbic structure connecting amygdala and hypothalamus. In this study, animals' preference for sweet solutions was examined as an index of stress-induced anhedonic responses in Wistar rats subjected to four brief intermittent episodes of social defeat. Next, social approach was assessed after local infusions of the CRFBP antagonist, CRF fragment 6-33 (CRF6-33) into the BNST. The experience of brief episodes of social defeat impaired social approach behaviors in male rats. However, intra-BNST CRF6-33 infusions restored social approach in stressed animals to the levels of non-stressed rats. CRF6-33 acted selectively on social interaction and did not alter general exploration in nether stressed nor non-stressed rats. These findings suggest that BNST CRFBP is involved in the modulation of anxiety-like responses induced by social stress. PMID- 29330006 TI - Cue and context conditioning to respiratory threat: Effects of suffocation fear and implications for the etiology of panic disorder. AB - Interoceptive threats play a crucial role in the etiology of panic disorder (PD). While body sensations may become conditioned stimuli (CS) when paired with such interoceptive threats (cue conditioning), the environment in which such interoceptive threats occur may also be learned as a predictor of threat (context conditioning). Suffocation fear (SF) might facilitate these associative learning processes if threats of suffocation become relevant as unconditioned stimuli (US). To investigate whether SF affects associative learning during such respiratory threat, we used mild dyspnea as CS that predicted the occurrence of strong dyspnea (US) in one context (predictable), was not related to the occurrence of the US in another context (unpredictable) or was presented in a different context (safe) in which no US was delivered. Startle eyeblink responses and subjective reports were assessed in 34 participants during learning. Individuals reporting high SF showed a clear potentiation of the startle response during the interoceptive CS predicting the occurrence of interoceptive threat (US). Such startle potentiation was not observed when the CS remained unpaired (safe or unpredictable context). Moreover, high SF persons also showed a significant startle potentiation to the threatening context, when the CS did not predict the onset of the US. No such learning effects were observed for low SF individuals. The data support the view that defensive response mobilization can be triggered by cues but also by contexts that predict the occurrence of interoceptive threats if these threats are relevant for the individuals, supporting learning accounts for the development of PD. PMID- 29330008 TI - Electrophysiological brain indices of risk behavior modification induced by contingent feedback. AB - The main aim of this research was to study the effects of response feedback on risk behavior and the neural and cognitive mechanisms involved, as a function of the feedback contingency. Sixty drivers were randomly assigned to one of three feedback groups: contingent, non-contingent and no feedback. The participants' task consisted of braking or not when confronted with a set of risky driving situations, while their electroencephalographic activity was continuously recorded. We observed that contingent feedback, as opposed to non-contingent feedback, promoted changes in the response bias towards safer decisions. This behavioral modification implied a higher demand on cognitive control, reflected in a larger amplitude of the N400 component. Moreover, the contingent feedback, being predictable and entailing more informative value, gave rise to smaller SPN and larger FRN scores when compared with non-contingent feedback. Taken together, these findings provide a new and complex insight into the neurophysiological basis of the influence of feedback contingency on the processing of decision making under risk. We suggest that response feedback, when contingent upon the risky behavior, appears to improve the functionality of the brain mechanisms involved in decision-making and can be a powerful tool for reducing the tendency to choose risky options in risk-prone individuals. PMID- 29330009 TI - The ALMANACH Project: Preliminary results and potentiality from Afghanistan. AB - INTRODUCTION: ALMANACH (ALgorithms for the MANagement of Acute CHildhood illnesses) is an electronic version of IMCI (Integrated Management of Childhood Illness) running on tablets. ALMANACH enhances its concept, it integrates well into health staff's daily consultation work and facilitates diagnosis and treatment. ALMANACH informs when to refer a child or to perform a rapid diagnostic test (RDT), recommends the right treatment dosage and synchronizes collected data real time with a Health Management Information System (DHIS2) for epidemiological evaluation and decision making. OBJECTIVES: Since May 2016, ALMANACH is under investigational deployment in three primary health care facilities in Afghanistan with the goal to improve the quality of care provided to children between 2 months and 5 years old. METHODS: IMCI's algorithms were updated in considering latest scientific publications, national guidelines, innovations in RDTs, the target population's epidemiological profile and the local resources available. Before the implementation of the project, a direct observation of 599 consultations was carried out to assess the daily performance at three selected health facilities in Kabul. RESULTS: The baseline survey showed that nutritional screening, vitamin A supplementation and deworming were not systematically performed: few patients were diagnosed for malnutrition (1.8%), received vitamin A (2.7%) or deworming (7.5%). Physical examination was appropriate only for 23.8% of the diagnoses of respiratory or gastrointestinal diseases, ear infection and sore throat. Respiratory rate was checked only in 33.5% of the children with fever and cough, dehydration status was assessed in only 16.5% of the diarrhoea cases. Forty-seven percent of patients received incorrect treatment. Sixty-four percent of the children, before the introduction of ALMANACH, received at least one antibiotic, although for 87.1% antibiotic therapy was unnecessary. The review of 8'047 paediatric consultations between May 2016 and September 2017 showed that with ALMANACH, malnutrition detection, deworming and Vitamin A supplementation increased respectively to 4.4%, 50.2% and 27.5%. Antibiotic prescription decreased to 21.83% and all children were examined and treated in compliance with the protocols. CONCLUSION: A survey will be conducted one year after the implementation to validate these initial promising results. If the efficacy of the approach is confirmed, ALMANACH could establish as a powerful innovation for primary health care. PMID- 29330007 TI - Lost connections: Oxytocin and the neural, physiological, and behavioral consequences of disrupted relationships. AB - In humans and rodent animal models, the brain oxytocin system is paramount for facilitating social bonds, from the formation and consequences of early-life parent-infant bonds to adult pair bond relationships. In social species, oxytocin also mediates the positive effects of healthy social bonds on the partners' well being. However, new evidence suggests that the negative consequences of early neglect or partner loss may be mediated by disruptions in the oxytocin system as well. With a focus on oxytocin and its receptor, we review studies from humans and animal models, i.e. mainly from the biparental, socially monogamous prairie vole (Microtus ochrogaster), on the beneficial effects of positive social relationships both between offspring and parents and in adult partners. The abundance of social bonds and benevolent social relationships, in general, are associated with protective effects against psycho- and physiopathology not only in the developing infant, but also during adulthood. Furthermore, we discuss the negative effects on well-being, emotionality and behavior, when these bonds are diminished in quality or are disrupted, for example through parental neglect of the young or the loss of the partner in adulthood. Strikingly, in prairie voles, oxytocinergic signaling plays an important developmental role in the ability to form bonds later in life in the face of early-life neglect, while disruption of oxytocin signaling following partner loss results in the emergence of depressive like behavior and physiology. This review demonstrates the translational value of animal models for investigating the oxytocinergic mechanisms that underlie the detrimental effects of developmental parental neglect and pair bond disruption, encouraging future translationally relevant studies on this topic that is so central to our daily lives. PMID- 29330010 TI - Nasopharyngeal Lactobacillus is associated with a reduced risk of childhood wheezing illnesses following acute respiratory syncytial virus infection in infancy. AB - BACKGROUND: Early life acute respiratory infection (ARI) with respiratory syncytial virus (RSV) has been strongly associated with the development of childhood wheezing illnesses, but the pathways underlying this association are poorly understood. OBJECTIVE: To examine the role of the nasopharyngeal microbiome in the development of childhood wheezing illnesses following RSV ARI in infancy. METHODS: We conducted a nested cohort study of 118 previously healthy, term infants with confirmed RSV ARI by RT-PCR. We used next-generation sequencing of the V4 region of the 16S ribosomal RNA gene to characterize the nasopharyngeal microbiome during RSV ARI. Our main outcome of interest was 2-year subsequent wheeze. RESULTS: Of the 118 infants, 113 (95.8%) had 2-year outcome data. Of these, 46 (40.7%) had parental report of subsequent wheeze. There was no association between the overall taxonomic composition, diversity, and richness of the nasopharyngeal microbiome during RSV ARI with the development of subsequent wheeze. However, the nasopharyngeal detection and abundance of Lactobacillus was consistently higher in infants who did not develop this outcome. Lactobacillus also ranked first among the different genera in a model distinguishing infants with and without subsequent wheeze. CONCLUSIONS: The nasopharyngeal detection and increased abundance of Lactobacillus during RSV ARI in infancy are associated with a reduced risk of childhood wheezing illnesses at age 2 years. PMID- 29330012 TI - Basophil testing with CD63 in pollen-sensitized patients is independent of the circadian clock. PMID- 29330011 TI - Mutations in PI3K110delta cause impaired natural killer cell function partially rescued by rapamycin treatment. AB - BACKGROUND: Heterozygous gain-of-function mutations in PI3K110delta lead to lymphadenopathy, lymphoid hyperplasia, EBV and cytomegalovirus viremia, and sinopulmonary infections. OBJECTIVE: The known role of natural killer (NK) cell function in the control of EBV and cytomegalovirus prompted us to investigate the functional and phenotypic effects of PI3K110delta mutations on NK cell subsets and cytotoxic function. METHODS: Mutations in patients were identified by using whole-exome or targeted sequencing. We performed NK cell phenotyping and functional analysis of patients' cells using flow cytometry, standard Cr51 cytotoxicity assays, and quantitative confocal microscopy. RESULTS: PI3K110delta mutations led to an altered NK cell developmental phenotype and cytotoxic dysfunction. Impaired NK cell cytotoxicity was due to decreased conjugate formation with susceptible target cells and abrogated activation of cell machinery required for target cell killing. These defects were restored partially after initiation of treatment with rapamycin in 3 patients. CONCLUSION: We describe novel NK cell functional deficiency caused by PI3K110delta mutation, which is a likely contributor to the severe viremia observed in these patients. Rapamycin treatment partially restores NK cell function, providing a further rationale for its use in patients with this disease. PMID- 29330014 TI - Frequency of red blood cell genotypes in multi-transfused patients and blood donors from Minas Gerais, Southeast Brazil. AB - BACKGROUND AND OBJECTIVES: The frequency of red blood cell (RBC) antigens in Brazil varies due to differences in the ethnic groups in different regions; however, these studies have not been performed in Minas Gerais, where African admixture is more prevalent in comparison with other states. Due to these facts, this study aimed to determine the frequency of RBC genotypes on Rh, Kell, Duffy and Kidd systems in blood donors and multi-transfused patients from Minas Gerais, Southeast Brazil. METHODS: Blood samples were collected from 170 donors and 117 patients with different diagnosis and at least three RBC transfusions. DNA was extracted from leukocytes and genotyped by PCR-SSP, Multiplex or RFLP to alleles of the referred systems. The results were compared by the Chi-Square test, with a significance level of 5%. RESULTS: The most frequent genotypes were: RHD+, RHCE*ce/RHCE*ce, KEL*2/KEL*2, FY*B-67T/FY*B-67T and JK*A/JK*B. FY*B-67C/FY*B-67C, RHD*Psi and JK*A/JK*A genotypes were more prevalent in sickle cell disease (SCD) patients than in donors. Many differences in RBC genotype frequencies were observed in comparison with studies from other states and countries. CONCLUSION: The results reinforce the importance of determining RBC genotypes of blood donors and patients in different regions of Brazil and the world, improving the transfusion safety of individuals requiring chronic RBC transfusions, especially those with SCD, due to ethnic differences in relation to donors. PMID- 29330013 TI - A functional splice variant associated with decreased asthma risk abolishes the ability of gasdermin B to induce epithelial cell pyroptosis. AB - BACKGROUND: Genetic variants in the chromosomal region 17q21 are consistently associated with asthma. However, mechanistic studies have not yet linked any of the associated variants to a function that could influence asthma, and as a result, the identity of the asthma gene(s) remains elusive. OBJECTIVES: We sought to identify and characterize functional variants in the 17q21 locus. METHODS: We used the Exome Aggregation Consortium browser to identify coding (amino acid changing) variants in the 17q21 locus. We obtained asthma association measures for these variants in both the Genetic Epidemiology Research in Adult Health and Aging (GERA) cohort (16,274 cases and 38,269 matched controls) and the EVE Consortium study (5,303 asthma cases and 12,560 individuals). Gene expression and protein localization were determined by quantitative RT-PCR and fluorescence immunostaining, respectively. Molecular and cellular studies were performed to determine the functional effects of coding variants. RESULTS: Two coding variants (rs2305480 and rs11078928) of the gasdermin B (GSDMB) gene in the 17q21 locus were associated with lower asthma risk in both GERA (odds ratio, 0.92; P = 1.01 * 10-6) and EVE (odds ratio, 0.85; joint PEVE = 1.31 * 10-13). In GERA, rs11078928 had a minor allele frequency (MAF) of 0.45 in unaffected (nonasthmatic) controls and 0.43 in asthma cases. For European Americans in EVE, the MAF of rs2305480 was 0.45 for controls and 0.39 for cases; for all EVE subjects, the MAF was 0.32 for controls and 0.27 for cases. GSDMB is highly expressed in differentiated airway epithelial cells, including the ciliated cells. We found that, when the GSDMB protein is cleaved by inflammatory caspase-1 to release its N-terminal fragment, potent pyroptotic cell death is induced. The splice variant rs11078928 deletes the entire exon 6, which encodes 13 amino acids in the critical N-terminus, and abolishes the pyroptotic activity of the GSDMB protein. CONCLUSIONS: Our study identified a functional asthma variant in the GSDMB gene of the 17q21 locus and implicates GSDMB-mediated epithelial cell pyroptosis in pathogenesis. PMID- 29330015 TI - Mother-to-child transmission of extended-spectrum-beta-lactamase-producing Enterobacteriaceae. AB - BACKGROUND: Preterm infants are at high risk for extended-spectrum-beta-lactamase producing Enterobacteriaceae (ESBL-E) sepsis and neonatal intensive care unit (NICU) outbreaks. Maternal colonization with ESBL-E may be precursory to mother to-child transmission. However, there is no consensus regarding surveillance of pregnant women for ESBL-E colonization. AIM: To identify pairs of mothers and infants harbouring same-strain ESBL-E colonization and to determine whether maternal transmission may play a role in increasing ESBL-E carriage in preterm infants. METHODS: This was a one-year analysis from an ongoing, prospective ESBL E surveillance of mothers of premature infants and their offspring. Mother-infant pairs colonized with the same bacteria underwent strain analysis using pulsed field gel electrophoresis (PFGE). Clinical parameters were collected from the hospital computerized records. FINDINGS: Between January 2015 and January 2016, 313/409 (76.5%) mothers and all 478 (100%) infants were screened for ESBL-E colonization; carriage rates were 21.5% and 14.8%, respectively. Four (5.6%) colonized infants developed late-onset sepsis and two (2.8%) died. Twenty-five mother-infant pairs colonized with the same bacterial strain were identified; a subgroup of 10 pairs of isolates underwent PFGE, and 70% displayed an identical PFGE fingerprint. No similarities were found between isolates recovered from unrelated neonates and mothers. ESBL-E colonization was found significantly earlier in infants of mothers colonized at birth (P<0.001) compared with infants of non-colonized mothers. CONCLUSIONS: ESBL-E carriage rates in mothers and NICU infants with non-negligible maternal-neonatal ESBL-E transmission in the study region indicate that maternal colonization surveillance and/or further infection control interventions should be considered. PMID- 29330016 TI - Clinical impact of delayed catheter removal for patients with central-venous catheter-related Gram-negative bacteraemia. AB - BACKGROUND: Gram-negative bacteria are increasingly the cause of catheter-related bloodstream infection (CRBSI), and the prevalence of multi-drug-resistant strains is rising rapidly. This study evaluated the impact of delayed central venous catheter (CVC) removal on clinical outcomes in patients with Gram-negative CRBSI. METHODS: Between January 2007 and December 2016, patients with Gram-negative bacteraemia and CVC placement, from two tertiary care hospitals, were included retrospectively. Cases with CVC removal more than three days after onset of bacteraemia or without CVC removal were classified as having delayed CVC removal. RESULTS: In total, 112 patients were included. Of these, 78 had CRBSI (43 definite and 35 probable) and 34 had Gram-negative bacteraemia from another source (non-CRBSI). Enterobacteriaceae were less common pathogens in patients with CRBSI than in patients with non-CRBSI (11.5% vs 41.3%; P<0.001). Delayed CVC removal was associated with increased 30-day mortality (40.5% vs 11.8%; P=0.01) in patients with Gram-negative CRBSI; this was not seen in patients with non CRBSI (25.0% vs 14.3%; P>0.99). Delayed CVC removal [odds ratio (OR) 6.8], multi drug-resistant (MDR) Gram-negative bacteraemia (OR 6.3) and chronic renal failure (OR 11.1) were associated with 30-day mortality in patients with CRBSI. The protective effect of early CVC removal on mortality was evident in the MDR group (48.3% vs 18.2%; P=0.03), but not in the non-MDR group (11.1% vs 0%; P=0.43). CONCLUSION: CVCs should be removed early to improve clinical outcomes in patients with Gram-negative CRBSI, especially in settings where MDR isolates are prevalent. PMID- 29330017 TI - A wrapped multi-label classifier for the automatic diagnosis and prognosis of Alzheimer's disease. AB - BACKGROUND: AD is the most frequent neurodegenerative disease, severely impacting our society. Early diagnosis and prognosis are challenging tasks in the management of AD patients. NEW METHOD: We implemented a machine-learning classifier for the automatic early diagnosis and prognosis of AD by means of features extracted, selected and optimized from structural MRI brain images. The classifier was designed to perform multi-label automatic classification into the following four classes: HC, ncMCI, cMCI, and AD. RESULTS: From our analyses, it emerged that MMSE and hippocampus-related measures must be included as primary measures in automatic-classification systems for both the early diagnosis and the prognosis of AD. The voting scheme mainly based on the binary-classification performances on the different four groups is the best choice to model the multi label decision function for AD, when compared with a simple majority-vote scheme or with a scheme aimed at discriminating patients with high vs low risk of conversion to AD and therapy addressing. COMPARISON WITH EXISTING METHOD(S): The accuracies of our binary classifications were higher than or comparable to previously published methods. An improvement is needed on the approach we used to combine binary-classification outputs to obtain the final multi-label classification. CONCLUSIONS: The performance of multi-label automatic classification systems strongly depends on the choice of the voting scheme used for combining binary-classification labels. PMID- 29330018 TI - Testicular adrenal rest tumor screening and fertility counseling among males with congenital adrenal hyperplasia. AB - BACKGROUND: Reduced fertility is a common potential problem among males with congenital adrenal hyperplasia (CAH), with nearly half experiencing impaired sperm production. The major cause of oligo/azoospermia in CAH is testicular adrenal rest tumors (TARTs). Studies indicate that ultrasound screening for TARTs should begin during childhood, yet it remains unclear whether boys with CAH are routinely screened for TARTs and/or counseled about infertility risk and potential interventions such as fertility testing and/or preservation. OBJECTIVE: The purpose of this study was to examine TART screening and fertility counseling practices among boys with CAH. STUDY DESIGN: An IRB-approved retrospective chart review was conducted of all males with ICD-9/10 codes for CAH (2007-2016) at a large pediatric academic center to examine: age and indication for diagnosis; age at first and last documented pediatric endocrinology and urology visit; history of ultrasound examinations; and documentation of fertility counseling. RESULTS: Forty-six patients were included, of whom 38 had 21-hydroxylase deficiency. Median age at diagnosis was 2 weeks (range 7 days-10 years). Median age at the most recent pediatric endocrinology clinic visit was 14 years (range 2-42 years). Twenty-nine patients were >11 years old (63% of the sample) at the time of the study and 14 of these were >18 years old (30% of the sample). Seven patients (15%) had a screening ultrasound at some point in their care, of whom three had TARTs. Fertility was mentioned in the records of six subjects (13% of the sample). Six of the subjects (13%) had any mention of fertility in their records. None of the patients had biochemical testing or semen analysis to assess gonadal function, and none were offered fertility preservation. Only one patient was seen by a pediatric urologist. DISCUSSION: Despite the limitations of a single-center retrospective design, our findings highlight that TART screening and fertility counseling remain underutilized in boys with CAH. There is a need for increased awareness and development of practice guidelines within pediatric urology and endocrinology to address this common and understudied problem. CONCLUSION: In addition to a screening ultrasound in puberty and consideration of semen analysis after puberty, these boys may benefit from seeing a pediatric urologist independently or in an interdisciplinary program. Boys with CAH and their families should be educated about infertility risk and potential interventions, with the goal of improving reproductive outcomes in this population. PMID- 29330019 TI - Parental decisional regret and views about optimal timing of female genital restoration surgery in congenital adrenal hyperplasia. AB - PURPOSE: The role of female genital restoration surgery (FGRS) in girls with congenital adrenal hyperplasia (CAH) is controversial, with no long-term parent reported outcomes available. Decisional regret (DR) affects most parents after their children's treatment of pediatric conditions, including hypospadias. We aimed to assess parental DR after FGRS in infancy or toddlerhood and explore optimal timing for surgery. MATERIALS AND METHODS: One-hundred and six parents of females with CAH undergoing FGRS before 3 years old and followed at our institution (1999-2017) were invited to enroll online. Higher Decision Regret Scale (DRS) scores indicated greater DR (range 0-100). Participants also reported preferred FGRS timing relative to their surgery (earlier, same, later/delayed). Non-parametric statistical tests were used. RESULTS: Thirty-nine parents (median 4.4 years after FGRS) participated (36.8% response rate). Median age at FGRS was 9 months. Median DRS score was 0 (mean: 5.0). Overall, 20.5% of parents reported some regret (all mild-moderate) (Figure). Fewer parents reported DR after FGRS compared with published DR after hypospadias repair (50-92%, p <= 0.001) or adenotonsillectomy (41-45%, p <= 0.03). No parent preferred delayed FGRS. Seven parents (18.1%) preferred earlier surgery, especially when performed after birthday (80.0% vs. 8.8%, p = 0.004). DISCUSSION: We present the first report of validated long-term parent-reported outcomes after FGRS in infant and toddler girls with CAH. One limitation is that this is largely a single surgeon series. Reasons for the observed low levels of DR are likely multifactorial. Far from a definitive study, we aimed to provide parents willing to share about their experience an opportunity to do so. For that reason, selection bias may exist in our study. While parents with higher DR were potentially less likely to participate because of mistrust of the medical establishment, those with a negative experience may in fact be more likely to voice their opinions. A low participation rate was likely a result of the sensitive nature of FGRS, a desire for privacy, and inability to locate parents. A larger study will be required to assess how DR is affected by sexual function, genital appearance and complications, and DR among women with CAH. CONCLUSIONS: Parents of females with CAH report low levels of DR after FGRS in infancy and toddlerhood. This appears to be lower than after other genital and non-genital pediatric procedures. When present, parental DR is usually mild. No parents preferred delayed surgery, even among those with DR. Some preferred earlier surgery. PMID- 29330020 TI - Predictors of deep brain stimulation outcome in tremor patients. AB - BACKGROUND: Deep brain stimulation of the ventro-intermedius nucleus of the thalamus is an established treatment for tremor of differing etiologies but factors that may predict the short- and especially long-term outcome of surgery are still largely unknown. METHODS: We retrospectively investigated the clinical, pharmacological, electrophysiological and anatomical features that might predict the initial response and preservation of benefit in all patients who underwent deep brain stimulation for tremor. Data were collected at the following time points: baseline (preoperative), one-year post-surgery, and most recent visit. Tremor severity was recorded using the Fahn-Tolosa-Marin Tremor Rating Scale and/or the Unified Parkinson's Disease Rating Scale. RESULTS: A total of 52 patients were included in the final analysis: 31 with essential tremor, 15 with cerebellar tremor of different etiologies, and 6 with Parkinson's disease. Long term success (mean follow-up duration 34.7 months, range 1.7-121.1 months) was reported in 63.5%. Predictors of long-term benefit were: underlying tremor etiology (best outcome in Parkinson's disease, worst outcome in cerebellar tremor); age at surgery (the older the better); baseline tremor severity (the greater the better); lack of response to benzodiazepines; a more anterior electrode placement and single-unit beta power (the greater the better). CONCLUSIONS: Specific patients' features (including single unit beta activity) and electrode locations may predict the short- and long-term benefit of thalamic stimulation for tremor. Future prospective studies enrolling a much larger sample of patients are needed to substantiate the associations detected by this retrospective study. PMID- 29330022 TI - Extracellular matrix contribution to skin wound re-epithelialization. AB - The ability of skin to act as a barrier is primarily determined by cells that maintain the continuity and integrity of skin and restore it after injury. Cutaneous wound healing in adult mammals is a complex multi-step process that involves overlapping stages of blood clot formation, inflammation, re epithelialization, granulation tissue formation, neovascularization, and remodeling. Under favorable conditions, epidermal regeneration begins within hours after injury and takes several days until the epithelial surface is intact due to reorganization of the basement membrane. Regeneration relies on numerous signaling cues and on multiple cellular processes that take place both within the epidermis and in other participating tissues. A variety of modulators are involved, including growth factors, cytokines, matrix metalloproteinases, cellular receptors, and extracellular matrix components. Here we focus on the involvement of the extracellular matrix proteins that impact epidermal regeneration during wound healing. PMID- 29330021 TI - CCN4/WISP1 controls cutaneous wound healing by modulating proliferation, migration and ECM expression in dermal fibroblasts via alpha5beta1 and TNFalpha. AB - Understanding the mechanisms that control cutaneous wound healing is crucial to successfully manage repair of damaged skin. The goal of the current study was to uncover novel extracellular matrix (ECM) components that control the wound healing process. Full thickness skin defects were created in mice and used to show CCN4 up-regulation during wound-healing as early as 1 day after surgery, suggesting a role in inflammation and subsequent dermal migration and proliferation. To determine how CCN4 could regulate wound healing we used Ccn4-KO mice and showed they had delayed wound closure accompanied by reduced expression of Col1a1 and Fn mRNA. Boyden chamber assays using Ccn4-deficient dermal fibroblasts showed they have reduced migration and proliferation compared to WT counterparts. To confirm CCN4 has a role in proliferation and migration of dermal cells, siRNA knockdown and transduction of CCN4 adenoviral transduction were used and resulted in reduced or enhanced migration of human adult dermal fibroblast (hADF) cells respectively. The induced migration of the dermal fibroblasts by CCN4 appears to work via alpha5beta1 integrin receptors that further stimulates down-stream ERK/JNK signaling. The regulation of CCN4 by TNF-alpha prompted us look further at their potential relationship. Treatment of hADFs with CCN4 and TNF-alpha alone or together showed CCN4 counteracted the inhibition of TNF-alpha on COL1A1 and FN mRNA expression and the stimulation of TNF-alpha on MMP-1 and MMP3 mRNA expression. CCN4 appeared to counterbalance the effects of TNF-alpha by inhibiting downstream NF-kappaB/p-65 signaling. Taken together we show CCN4 stimulates dermal fibroblast cell migration, proliferation and inhibits TNF-alpha stimulation, all of which could regulate wound healing. PMID- 29330023 TI - Unraveling the differential structural stability and dynamics features of T7 endolysin partially folded conformations. AB - BACKGROUND: Characterization of partially collapsed protein conformations at atomic level is a daunting task due to their inherent flexibility and conformational heterogeneity. T7 bacteriophage endolysin (T7L) is a single-domain amidase that facilitates the lysis of Gram-negative bacteria. T7L exhibits a pH dependent structural transition from native state to partially folded (PF) conformation. In the pH range 5-3, T7L PF states display differential ANS binding characteristics. METHODS: CD, fluorescence, NMR spectroscopy and lysis assays were used to investigate the structure-stability- dynamics relationships of T7L PF conformations. RESULTS: Structural studies indicated a partial loss of secondary/tertiary structures compared to its native state. The loss in the tertiary structure and the hydrophobic core opening increases upon decrease of pH from 5 to 3. Thermal denaturation experiments delineated that the pH 5 conformation is thermally irreversible in contrast to pH 3, depicting that hydrophobic core opening is essential for thermal reversibility. Further, urea dependent unfolding features of PF state at pH 5 and 4 evidenced for a collapsed conformation at intermediate urea concentrations. Residue level studies revealed that alpha1-helix and beta3-beta4 segment of T7L are the major contributors for such a structural collapse and inherent dynamics. CONCLUSIONS: The results suggested that the low pH PF states of T7L are heterogeneous and exhibits differential structural, unfolding, thermal reversibility, and dynamic features. GENERAL SIGNIFICANCE: Unraveling the structure-stability characteristics of different endolysin conformations is essential for designing novel chimeric and engineered phage endolysins as broadband antimicrobial agents over a varied pH range. PMID- 29330025 TI - The role of extracellular and intracellular Nicotinamide phosphoribosyl transferase in cancer: Diagnostic and therapeutic perspectives and challenges. AB - Nicotinamide phosphoribosyl-transferase (Nampt) or pre-B cell colony-enhancing factor or visfatin represents a pleiotropic molecule acting as an enzyme, a cytokine and a growth factor. Intracellular Nampt plays an important role in cellular bioenergetics and metabolism, particularly NAD biosynthesis. NAD biosynthesis is critical in DNA repair, oncogenic signal transduction, transcription, genomic integrity and apoptosis. Although its insulin-mimetic function remains a controversial issue, extracellular Nampt presents proliferative, anti-apoptotic, pro-inflammatory, pro-angiogenic and metastatic properties. Nampt is upregulated in many malignancies, including obesity associated cancers, and is associated with worse prognosis. Serum Nampt may be a potential diagnostic and prognostic biomarker in cancer. Pharmacologic agents that neutralize Nampt or medications that decrease Nampt levels or downregulate signaling pathways downstream of Nampt may prove to be useful anti-cancer treatments. In particular, Nampt inhibitors as monotherapy or in combination therapy have displayed anti-cancer activity in vivo and in vitro. The aim of this review is to explore the role of Nampt in cancer pathophysiology as well as to synopsize the mechanisms underlying the association between extracellular and intracellular Nampt, and malignancy. Exploring the interplay of cellular bioenergetics, inflammation and adiposopathy is expected to be of importance in the development of preventive and therapeutic strategies against cancer. PMID- 29330024 TI - Nucleophosmin-1 regions associated with acute myeloid leukemia interact differently with lipid membranes. PMID- 29330026 TI - Sound shock response in larval zebrafish: A convenient and high-throughput assessment of auditory function. AB - Given that hearing ability can be challenged in diverse ways, it is necessary to develop an easily conducted, high-throughput method for assessing potential auditory risks. Measuring the acoustic startle response (ASR) has become a critical behavioral method in hearing research using zebrafish (Danio rerio). In this study, changes in the activity of zebrafish larvae (10 days post fertilization (dpf)) due to exposure to a sudden easily-generated broad-band noise were automatically and objectively recorded and analyzed without building sophisticated equipments. A significant increase in activity was induced by the noise stimulation and the alterations were impaired by gentamicin. In addition, a clear dose-response trend was observed between gentamicin exposure and the impaired activity, and a similar phenomenon was observed between gentamicin exposure and damage to hair cells. Our results suggested that alterations in the activity induced by a broad-band noise can potentially be used as an efficient assay for assessing hearing ability. PMID- 29330027 TI - Selective estrogen receptor modulator ormeloxifene suppresses embryo implantation via inducing miR-140 and targeting insulin-like growth factor 1 receptor in rat uterus. AB - Ormeloxifene, the non-steroidal SERM contraceptive, inhibits endometrial receptivity and embryo implantation via countering nidatory estrogen. However, the molecular mechanism of ormeloxifene action responsible for its contraceptive efficacy still remains unclear. Herein, we aimed to identify the miRNAs modulated under the influence of ormeloxifene and to explore their role in endometrial receptivity and embryo implantation. By doing microRNA sequencing analysis, a total of 168 miRNAs were found to be differentially expressed in uterine tissue of ormeloxifene-treated rats, on day 5 (10:00 h) of pregnancy i.e. peri implantation period. Out of differentially expressed miRNAs, miR-140 expression was found to be elevated in ormeloxifene administered groups and was selected for detailed investigation. In-vivo gain-of-function of miR-140 resulted in a significant reduction of implantation sites indicating its role in embryo implantation. The experiment on delayed implantation showed that estradiol caused down-regulation of miR-140. It also suppressed the attachment and outgrowth of BeWo spheroids to RL95-2 endometrial cells. In transwell migration assay, miR-140 was found to be involved in suppression of migration and invasion of endometrial epithelial cells. The ormeloxifene treatment caused up-regulation of miR-140 along with down-regulated expression of its target IGF1R in endometrial epithelial and stromal cells which also led to the suppression of downstream effectors integrin beta3 and FAK. In mimic miR-140 receiving horn, the reduced expression of IGF1R was observed along with suppressed downstream integrin beta3 and FAK similar to that observed in uteri of ormeloxifene- treated rats. Taken together, these findings suggest that ormeloxifene-induced inhibition of embryo implantation occurs via inducing miR-140 and altering its target IGF1R in rat uterus. PMID- 29330028 TI - Perceptions of the relative harmfulness of marijuana and alcohol among adults in Oregon. AB - This study documents perceptions of the relative harmfulness of marijuana and alcohol to a person's health among adults in Oregon just before the first legal sales of marijuana for recreational use. We surveyed 1941 adults in Oregon in September 2015. Respondents were recruited using an address-based sampling (ABS) frame (n = 1314) and social media advertising (n = 627). Respondents completed paper surveys (ABS-mail, n = 388) or online surveys (ABS-online, n = 926; social media, n = 627). We used descriptive statistics and logistic regression models to examine perceptions of the relative harmfulness of marijuana and alcohol by sample characteristics, including substance use. About half of adults in Oregon (52.5%) considered alcohol to be more harmful to a person's health than marijuana. A substantial proportion considered the substances equally harmful (40.0%). Few considered marijuana to be more harmful than alcohol (7.5%). In general, respondents who were younger, male, and not Republican were more likely than others to consider alcohol more harmful than marijuana. Respondents who were older, female, and Republican were more likely to consider marijuana and alcohol equally harmful. Most individuals who reported using both marijuana and alcohol (67.7%) and approximately half of those who used neither substance (48.2%) considered alcohol to be more harmful than marijuana. Perceptions about the relative harmfulness of marijuana and alcohol may have implications for public health. As state lawmakers develop policies to regulate marijuana, it may be helpful to consider the ways in which those policies may also affect use of alcohol and co-use of alcohol and marijuana. PMID- 29330029 TI - Association of 100% fruit juice consumption and 3-year weight change among postmenopausal women in the in the Women's Health Initiative. AB - The association between drinking 100% fruit juice and long-term weight gain is controversial and has been investigated in few studies. We examined whether 100% fruit juice consumption was associated with weight change in a large prospective cohort of postmenopausal women. We analyzed data from 49,106 postmenopausal women in the United States enrolled in the Women's Health Initiative between 1993 and 1998. Food frequency questionnaires at baseline and year 3 assessed food and beverage intake. Body weight was measured at in-person clinic visits. We used linear mixed effects modeling to determine the association between change in 100% fruit juice consumption and 3-year weight change over the same time period. Covariates of interest included age, demographic factors, smoking, body mass index, hormone replacement therapy, lifestyle factors, change in whole fruit intake, and change in sugar-sweetened beverage intake. The mean weight change was 3.2 lbs. over 3 years. In multivariable adjusted analyses, each 1 serving/day increase in 100% fruit juice intake was associated with a 3-year weight gain of 0.39 lbs. (95% confidence interval: 0.10, 0.69). In conclusion, an increase in 100% fruit juice consumption was associated with a small amount of long-term weight gain in postmenopausal women. PMID- 29330030 TI - Health impact assessment of cycling network expansions in European cities. AB - We conducted a health impact assessment (HIA) of cycling network expansions in seven European cities. We modeled the association between cycling network length and cycling mode share and estimated health impacts of the expansion of cycling networks. First, we performed a non-linear least square regression to assess the relationship between cycling network length and cycling mode share for 167 European cities. Second, we conducted a quantitative HIA for the seven cities of different scenarios (S) assessing how an expansion of the cycling network [i.e. 10% (S1); 50% (S2); 100% (S3), and all-streets (S4)] would lead to an increase in cycling mode share and estimated mortality impacts thereof. We quantified mortality impacts for changes in physical activity, air pollution and traffic incidents. Third, we conducted a cost-benefit analysis. The cycling network length was associated with a cycling mode share of up to 24.7% in European cities. The all-streets scenario (S4) produced greatest benefits through increases in cycling for London with 1,210 premature deaths (95% CI: 447-1,972) avoidable annually, followed by Rome (433; 95% CI: 170-695), Barcelona (248; 95% CI: 86-410), Vienna (146; 95% CI: 40-252), Zurich (58; 95% CI: 16-100) and Antwerp (7; 95% CI: 3-11). The largest cost-benefit ratios were found for the 10% increase in cycling networks (S1). If all 167 European cities achieved a cycling mode share of 24.7% over 10,000 premature deaths could be avoided annually. In European cities, expansions of cycling networks were associated with increases in cycling and estimated to provide health and economic benefits. PMID- 29330031 TI - Mental health disorders mediate association of sexual minority identity with cardiovascular disease. AB - BACKGROUND: Little is known about cardiovascular health disparities for lesbian, gay, or bisexual (LGB) persons and whether these disparities are mediated by mental health disorders due to sexual minority stress. We hypothesize LGB identity is associated with an increased risk of cardiovascular disease (CVD) and that major depressive disorder (MDD) and generalized anxiety disorders (GAD) may mediate this association. METHODS: The National Epidemiologic Survey on Alcohol and Related Conditions is a longitudinal, nationally-representative study of non institutionalized U.S. adults. We cross-sectionally analyzed the second wave data (2004-2005) comparing 577 self-identified LGB persons to 33,598 heterosexuals. Multiple logistic regression modeling and mediation analysis (the product of coefficients approach) were performed. RESULTS: LGB persons had significantly higher CVD prevalence [adjusted odds ratio (AOR): 1.5, 95% CI: 1.2-1.9], and were more likely to be diagnosed with MDD (AOR: 1.9, 1.8-2.1), GAD (AOR: 2.2, 1.9 2.4), or co-occurring MDD and GAD (AOR: 2.2, 2.0-2.5). MDD, GAD, and co occurrence of MDD and GAD significantly mediated 14.3%, 22.2%, and 33.3% of the association of LGB status with increased CVD prevalence, respectively. CONCLUSIONS: Our findings identified a 50% increased CVD prevalence among LGB persons and this increased risk was mediated in part by MDD and GAD, both being more prevalent in sexual minority adults. PMID- 29330032 TI - A free sugars daily value (DV) identifies more "less healthy" prepackaged foods and beverages than a total sugars DV. AB - Regulatory changes in Canada will require food labels to have a benchmark [% Daily Value, %DV] for total sugars, based on 100 g/day, while US labels will require a %DV for added sugars, based on 50 g/day. The objective of this study was to compare two labelling policies, a total sugars DV (100 g/day) and a free sugars DV (50 g/day) on food labels. This cross-sectional analysis of the Food Label Information Program database focussed on top sources of total sugars intake in Canada (n = 6924 foods). Products were categorized as "less healthy" using two sets of criteria: a) free sugars levels exceeding the WHO guidelines (>=10% energy from free sugars); and b) exceeding healthfulness cut-offs of the Food Standards Australia New Zealand Nutrient Profiling Scoring Criterion (FSANZ NPSC). The proportion of "less healthy" products with >=15%DV (defined as "a lot" of sugars i.e. high in sugars, based on Health Canada's %DV labelling footnote and educational message for dietary guidance) were compared for each sugar labelling scenario. The free sugars DV showed better alignment with both methods for assessing "healthfulness" than the total sugars DV. The free sugars DV identified a greater proportion of "less healthy" foods with >=15%DV, based on both the FSANZ-NPSC (70% vs. 45%, p < .0001) and WHO guidelines (82% vs. 55%, p < .0001); particularly in sweet baked goods, sugars and preserves, chocolate bars, confectionery, and frozen desserts categories. Compared to total sugars DV labelling, using a free sugars DV identified more "less healthy" foods. Findings support the adoption of free sugars labelling. PMID- 29330033 TI - Service quality and parents' willingness to get adolescents HPV vaccine from pharmacists. AB - We sought to examine whether pharmacy service quality was associated with parents' willingness to have immunizing pharmacists administer human papillomavirus (HPV) vaccine to their adolescent children. Participants were a national sample of 1504 US parents of adolescents ages 11 to 17 who completed an online survey in 2014. Analyses used structural equation modeling. Parents rated service quality and feelings of satisfaction with their pharmacies as moderate to high. Many (44%) were willing to get HPV vaccine from immunizing pharmacists for their adolescent children. Compared with parents who went to chain pharmacies, parents who went to independent pharmacies gave higher ratings of service quality (professionalism, confidentiality, milieu, all p < .001). Parents who went to clinic pharmacies, compared with parents who went to chain pharmacies gave lower ratings for milieu (p < .01). Parents who went to independent pharmacies had lower willingness to get HPV vaccine from pharmacists compared to parents who went to chain pharmacies (p = .001), but there was no difference in willingness for parents who went to clinic versus chain pharmacies. Service quality and satisfaction partially mediated the effect between independent pharmacies compared to chain pharmacies and willingness (p < .05). Parents who knew their pharmacists or expressed more confidence in HPV vaccine also had higher willingness to get their children HPV vaccine from pharmacist. Many parents were willing to go to immunizing pharmacists for their children's HPV vaccination. Pharmacies that are considering offering HPV vaccine may be able to improve vaccine uptake by increasing perception of service quality. PMID- 29330034 TI - Successful treatment of a penicillin-intermediate and ceftriaxone-resistant Granulicatella adiacens presumed prosthetic valve endocarditis with vancomycin. AB - Advancements in rapid diagnostics have helped to identify nutritionally variant streptococci (NVS) as an increasing cause of infective endocarditis (IE). This case report highlights the challenges in susceptibility testing and the importance of appropriate empiric treatment for Granulicatella adiacens, and provides considerations for future practice guideline recommendations. Guidelines for treatment of IE caused by NVS are currently limited to patients with native valve disease. We present a patient with presumed prosthetic valve endocarditis caused by G. adiacens, with clinically relevant resistance to recommended first line agents (penicillin and ceftriaxone), who was successfully treated with 8 weeks of intravenous (IV) vancomycin. Vancomycin is currently recommended as an alternate therapy for patients intolerant of penicillins, but we believe vancomycin should be considered a first-line empiric treatment option for IE when the identified organism is G. adiacens and susceptibility testing is not readily available. PMID- 29330036 TI - Regulation of fibrotic changes by the synergistic effects of cytokines, dimensionality and matrix: Towards the development of an in vitro human dermal hypertrophic scar model. AB - : Current therapeutic strategies to reduce scarring in full thickness skin defect offer limited success due to poor understanding of scar tissue formation and the underlying signaling pathways. There is an urgent need to develop human cell based in vitro scar tissue models as animal testing is associated with ethical and logistic complications and inter-species variations. Pro-inflammatory cytokines play critical role in regulating scar development through complex interplay and interaction with the ECM and corresponding signaling pathways. In this context, we assessed the responses of cultured fibroblasts with respect to their differentiation into myofibroblasts using optimised cytokines (TGF-beta1, IL-6 and IL-8) for scar formation in 2D (tissue culture plate, collagen type I coated plate) vs 3D collagen type I gel based constructs. We attempted to deduce the role of dimensionality of cell culture matrix in modulating differentiation, function and phenotype of cultured fibroblasts. Validation of the developed model showed similarity to etiology and pathophysiology of in vivo hypertrophic scar with respect to several features: 1) transition of fibroblasts to myofibroblasts with convincing expression of alpha-SMA stress fibers; 2) contraction; 3) excessive collagen and fibronectin secretion; 4) expression of fibrotic ECM proteins (SPARC and Tenascin); 5) low MMP secretion. Most importantly, we elucidated the involvement of TGF-beta/SMAD and Wnt/beta-catenin pathways in developing in vitro dermal scar. Hence, this relatively simple in vitro human scar tissue equivalent may serve as an alternative for testing and designing of novel therapeutics and help in extending our understanding of the complex interplay of cytokines and related dermal scar specific signaling. STATEMENT OF SIGNIFICANCE: Scarring of the skin affects almost millions of people per year in the developed world alone, nevertheless the complex pathophysiology and the precise signaling mechanisms responsible for this phenomenon of skin scarring are still unknown. A number of anti-scar drugs are being developed and being tested on animals and monolayer models. However, testing the efficacy of these drugs on lab based 3D in vitro models may prove extremely useful in recapitulating the 3D microenvironment of the native scar tissue. In that context in this study we have demonstrated the development of 3D in vitro dermal scar model, by optimizing a constellation of factors, such as combination of cytokines (TGF-beta1,IL-6,IL-8) and cellular dimensionality in inducing the differentiation of dermal fibroblasts to myofibroblasts. This in vitro scar model was successful in replicating hallmark features of hypertrophic scar such as excessive synthesis of fibrotic extracellular matrix, perturbed matrix homeostasis, contraction, diminished MMP synthesis. The study also highlighted significant involvement of TGF-beta/SMAD and Wnt/beta-catenin signaling pathways in in vitro scar formation. PMID- 29330035 TI - Harmine enhances GABAergic transmission onto basoamygdala projection neurons in mice. AB - Emerging evidence indicates that loss of inhibitory tone in amygdala with its subsequent overactivation contributes to the development of multiple mental disorders such as anxiety disorders and post-traumatic stress disorder (PTSD). Harmine is a member of natural beta-carboline alkaloids which can readily cross the blood brain barrier and displays significant antidepressant and anxiolytic effects in rodents. However, the underlying neurobiological mechanisms are largely unknown. Here, by using whole-cell patch clamp recordings in in vitro amygdala slices, we examined the effect of harmine on glutamatergic and GABAergic transmission onto basal amygdala (BA) projection neurons (PNs). Our results showed that harmine affected neither the amplitude nor the frequency of spontaneous and miniature excitatory postsynaptic currents (sEPSCs/mEPSCs) of PNs. By contrast, it markedly increased both the amplitude and frequency of the spontaneous inhibitory postsynaptic currents (sIPSCs). For mIPSCs, only an increase of their frequency but not amplitude was observed following harmine perfusion, suggesting that harmine might act through presynaptic mechanism. In parallel, a reduction of paired-pulse ratio of evoked IPSCs emerged in the presence of harmine. Furthermore, the intrinsic excitability of PNs was dramatically decreased upon harmine treatment. Together, our study suggests that harmine selectively potentiates the inhibitory but not excitatory transmission onto BA PNs, which may contribute to its antidepressant and anxiolytic influence. PMID- 29330037 TI - Sustained delivery of glial cell-derived neurotrophic factors in collagen conduits for facial nerve regeneration. AB - : Facial nerve injury caused by traffic accidents or operations may reduce the quality of life in patients, and recovery following the injury presents unique clinical challenges. Glial cell-derived neurotrophic factor (GDNF) is important in nerve regeneration; however, soluble GDNF rapidly diffuses into body fluids, making it difficult to achieve therapeutic efficacy. In this work, we developed a rat tail derived collagen conduit to connect nerve defects in a simple and safe manner. GDNF was immobilized in the collagen conduits via chemical conjugation to enable controlled release of GDNF. The GDNF delivery system prevented rapid diffusion from the site without impacting bioactivity of GDNF; degradation of the collagen conduit was inhibited owing to the chemical conjugation. The artificial nerve conduit was then used to examine facial nerve regeneration across a facial nerve defect. Following transplantation, the artificial nerve conduits degraded gradually without causing dislocations and serious inflammation, with good integration into the host tissue. Functional and histological tests indicated that the artificial nerve conduits were able to guide the axons to grow through the defect, reaching the distal stumps. The degree of nerve regeneration in the group that was treated with the artificial nerve conduit approached that of the autograft group, and exceeded that of the other conduit grafted groups. STATEMENT OF SIGNIFICANCE: In this study, we developed artificial nerve conduits consisting of GDNF immobilized on collagen, with the aim of providing an environment for nerve regeneration. Our results show that the artificial nerve conduits guided the regeneration of axons to the distal nerve segment. GDNF was immobilized stably in the artificial nerve conduits, and therefore retained a sufficient concentration at the target site to effectively promote the regeneration process. The artificial nerve conduits exhibited good biocompatibility and facilitated nerve regeneration and functional recovery with an efficacy that was close to that of an autograft, and better than that of the other conduit grafted groups. Our approach provides an effective delivery system that overcomes the rapid diffusion of GDNF in body fluids, promoting peripheral nerve regeneration. The artificial nerve conduit therefore qualifies as a putative candidate material for the fabrication of peripheral nerve reconstruction devices. PMID- 29330038 TI - Asthmatic/wheezing phenotypes in preschool children: Influential factors, health care and urban-rural differences. AB - BACKGROUND: Different wheezing and asthmatic phenotypes turned out to indicate differences in etiology, risk factors and health care. We examined influential factors and urban-rural differences for different phenotypes. METHODS: Parents of 4732 children filled out a questionnaire concerning children's health and environmental factors administered within the Health Monitoring Units (GME) in a cross-sectional study in Bavaria, Germany (2014/2015). To classify respiratory symptoms, five phenotype groups were built: episodic, unremitting and frequent wheeze, ISAAC (International Study of Asthma and Allergies in Children) - asthma and physician-diagnosed asthma (neither of the groups are mutually exclusive). For each phenotype, health care variables were presented and stratified for residence. Urban-rural differences were tested by Pearson's chi-squared tests. Multivariable logistic regression was performed to analyze associations between influential factors and belonging to a phenotype group, and to compare groups with regard to health care variables as outcome. RESULTS: Risk factors for wheezing phenotypes were male gender (OR = 2.02, 95%-CI = [1.65-2.48]), having older siblings (OR = 1.24, 95%-CI = [1.02-1.51]), and preterm delivery (OR = 1.61, 95%-CI = [1.13-2.29]) (ORs for unremitting wheeze). 57% of children with ISAAC asthma and 74% with physician-diagnosed asthma had performed allergy tests. Medication intake among all groups was more frequent in rural areas, and physician's asthma diagnoses were more frequent in urban areas. CONCLUSIONS: In accordance with previous research this study confirms that male gender, older siblings and preterm delivery are associated with several wheezing phenotypes. Overall, low numbers of allergy tests among children with physician's diagnoses highlight a discrepancy between common practice and current knowledge and guidelines. Residential differences in health care might encourage further research and interventions strategies. PMID- 29330039 TI - Age as a prognostic indicator for adjuvant therapy in patients who underwent pancreatic resections for cancer. AB - PURPOSE: In pancreatic cancer, the greatest increase in survival is attained by surgical resection followed by adjuvant chemotherapy. Although surgical complications and functional status are recognized as independent factors for halting adjuvant therapy in patients that undergo pancreatic resections, other elements may play a role in deciding which patients get treated postoperatively. Here we determined demographic and clinical characteristics of patients receiving adjuvant chemotherapy, with the primary intent to investigate if age alone affects rates of adjuvant therapy. METHODS/MATERIALS: National Cancer Database (NCDB) was queried for patients that underwent surgery for pancreatic cancer. Groups were divided into: adjuvant chemotherapy (n=17,924) and no adjuvant chemotherapy (n=12,947). Basic demographics and treatment characteristics were analyzed. Age was compared with an independent means test; other comparisons used Chi-square test of independence. RESULTS: There was a statistical difference in age (adjuvant therapy 64.86+/-9.89 vs. no therapy 67.78+/-11.22, p<0.001), insurance type, facility type, and cancer stage for patients that received adjuvant therapy and those that did not. Average age of patients not receiving chemotherapy was significantly older at each pathologic stage. Subset analysis of patients treated with chemotherapy showed that the majority of patients received single agent regimens (62%), at an average of 59days following surgery, and at academic cancer programs (52%). CONCLUSIONS: Regardless of postoperative complications and functional status, age alone appears to affect rates of adjuvant therapy in patients with resected pancreatic cancer. Older patients should be offered tailored regimens that would allow them to complete the intended extent of treatment. PMID- 29330040 TI - YOD1 attenuates neurogenic proteotoxicity through its deubiquitinating activity. AB - Ubiquitination, a fundamental post-translational modification of intracellular proteins, is enzymatically reversed by deubiquitinase enzymes (deubiquitinases). >90 deubiquitinases have been identified. One of these enzymes, YOD1, possesses deubiquitinase activity and is similar to ovarian tumor domain-containing protein 1, which is associated with regulation of the endoplasmic reticulum (ER) associated degradation pathway. Indeed, YOD1 is reported to be involved in the ER stress response induced by mislocalization of unfolded proteins in mammalian cells. However, it has remained unclear whether YOD1 is associated with pathophysiological conditions such as mitochondrial damage, impaired proteostasis, and neurodegeneration. We demonstrated that YOD1 possesses deubiquitinating activity and exhibits preference for K48- and K63-linked ubiquitin. Furthermore, YOD1 expression levels increased as a result of various stress conditions. We demonstrated that the neurogenic proteins that cause Huntington disease and Parkinson's disease induced upregulation of YOD1 level. We observed that YOD1 reduced disease cytotoxicity through efficient degradation of mutant proteins, whereas this activity was abolished by catalytically inactive YOD1. Additionally, YOD1 localized to Lewy bodies in Parkinson's disease patients. Collectively, these data suggest that the deubiquitinase YOD1 contributes to pathogenesis of neurodegenerative disease by decreasing ubiquitination of abnormal proteins and their subsequent degradation. PMID- 29330041 TI - Acute epileptiform activity induced by gabazine involves proteasomal rather than lysosomal degradation of KCa2.2 channels. AB - Voltage-independent, Ca2+-activated K+ channels (KCa2.2, previously named SK2) are typically activated during a train of action potentials, and hence, are powerful regulators of cellular excitability by generating an afterhyperpolarizing potential (AHP) following prolonged excitation. In the acute in vitro epilepsy model induced in hippocampal brain slice preparations by exposure to the GABAA receptor blocker gabazine (GZ), the AHP was previously shown to be significantly decreased. Here, we asked the question whether KCa2.2 protein degradation occurs in this model and which pathways are involved. To this end, we applied either gabazine alone or gabazine together with inhibitors of proteasomal and lysosomal protein degradation pathways, Z-Leu-Leu-Leu-CHO (MG132) and chloroquine (CQ), respectively. Western blot analysis showed a significant decrease of total KCa2.2 protein content in GZ-treated slices which could be rescued by concomitant incubation with MG132 and CQ. Using HEK293 cells transfected with a green fluorescent protein-tagged KCa2.2 construct, we demonstrated that proteasomal rather than lysosomal degradation was involved in KCa2.2 reduction. We then recorded epileptiform afterdischarges at hippocampal Schaffer collateral-CA1 synapses and confirmed that the GZ-induced increase was significantly attenuated by both MG132 and CQ, with MG132 being significantly more effective than CQ. Epileptiform afterdischarges were almost prevented by co application of protein degradation inhibitors. Furthermore, epileptiform afterdischarges could be re-established by using the KCa2.2 blocker UCL 1684 suggesting involvement of KCa2.2. We conclude that in GZ-induced acute epilepsy, KCa2.2 degradation by proteasomal rather than lysosomal pathways plays a major role in the generation of epileptiform afterdischarges. PMID- 29330043 TI - HALT - A pause for anticoagulation consideration after bioprosthetic valves. PMID- 29330042 TI - Differences in the CT findings between vulnerable plaque and culprit lesions in acute coronary syndrome. AB - BACKGROUND: The CT finding of "vulnerable plaque" is widely regarded as similar to that of a culprit lesion in an acute coronary syndrome (ACS). However, this hypothesis may not be accurate, since "vulnerable plaques" may substantially change their morphology when they rupture to cause an ACS. METHODS: We retrospectively evaluated coronary CT angiography data sets of 25 patients with ACS who had vulnerable (n = 10) or culprit plaques (n = 15). We analyzed CT features including positive remodeling (PR), low attenuation plaque (LAP), the napkin ring sign (NRS), degree of stenosis (normal, <50%, 50-99%, 100%), and myocardial hypoperfusion in the left ventricle. RESULTS: There was no difference in the prevalence of PR, NRS, or LAP between vulnerable and culprit plaques. In contrast, a majority (80%, 8/10) of vulnerable plaques were associated with <50% luminal stenosis while total occlusion was identified in 47% (7/15) of culprit plaques (p = .037). In all patients with occlusion, myocardial hypoperfusion was demonstrated in the corresponding arterial territory on CT. CONCLUSION: CT features of vulnerable and culprit plaques differ in cases with thrombotic occlusion reflecting dynamic plaque changes related to the episode of ACS. PMID- 29330044 TI - Effects of acupuncture on the heart rate variability, cortisol levels and behavioural response induced by thunder sound in beagles. AB - Sound stimuli such as fireworks, firearms, and claps of thunder have been used as a stress reactivity model for dogs. Acupuncture has been widely used to treat and prevent physiological and behavioural disorders induced by stress. Our study aims to evaluate the effects of acupuncture on cardiac autonomic modulation (heart rate variability - HRV), behavioural (reactivity) and endocrine (cortisol levels) responses in dogs exposed to sounds of thunder. Twenty-four laboratory beagles (12 males and 12 females, 1-6years old) with no history of phobia to thunder were subjected to a sound stimulus that consisted of a standardized recording of thunder over a 150s period with a maximum intensity of 103-104dB. Before the sound, the dogs underwent a 20-minute session of needle insertion at acupuncture points Yintang, GV20, HT7, PC6 and ST36 (ACUP), in non-points (NP) or left undisturbed (CTL). Cardiac intervals were recorded using a frequency meter (RS 800cx, Polar, Kempele, Finland) to evaluate the HRV, and the data were later analysed using CardioSeries v2.4.1 software. Acupuncture (ACUP) changed the sympathovagal balance with a shift towards parasympathetic modulation, reducing the prompt sound-induced increase in LF/HF (low frequency/high frequency) ratio and in the power of the LF band of the cardiac interval spectrum, and decreased the power of the HF band of the cardiac interval spectrum (p<0.05); however there was no change in the heart rate. Acupuncture reduced the behavioural response induced by sounds of thunder (when all behavioural parameters were considered together) and the behaviours hiding, restlessness, bolting and running around (when the parameters were analysed separately (p<0.05). There were no changes in cortisol levels due to the sound stimulus or acupuncture. Our results demonstrate that a session of acupuncture prior to sound stimulus can reduce cardiac autonomic and behavioural responses, without changing cortisol levels in beagles. PMID- 29330045 TI - Management of graves myopathy: Thyroid-associated orbitopathy: when should we operate? AB - Thyroid-associated orbitopathy (TAO) is an autoimmune disorder that affects multiple periocular tissues. In TAO, an active immunologic inflammatory phase is typically followed by a cicatrizing recovery phase. Management in the inflammatory phase is supportive, and surgical rehabilitation should generally be deferred until the patient is stable. We review current treatment concepts, with a focus on the timing and sequence of surgical procedures to address proptosis, motility restriction, and eyelid malposition in patients with TAO. A stepwise surgical approach maximizes the predictability of surgical outcomes and minimizes reoperations. PMID- 29330046 TI - Dermoid cysts: clinical predictors of complex lesions and surgical complications. PMID- 29330047 TI - An intrinsically disordered domain in Polaribacter irgensii KOPRI 22228 CspB confers extraordinary freeze-tolerance. AB - Organisms living in extremely cold environments possess mechanisms to survive low temperatures. Among the known cold-induced genes, cold-shock proteins (Csps) are the most prominent. A csp-homologous gene, cspBPi, has been cloned from the Arctic bacterium Polaribacter irgensii KOPRI 22228, and overexpression of this gene greatly increased the freezing tolerance of its host. This protein consists of a unique N-terminal domain and a well conserved C-terminal cold shock domain. To elucidate the detailed mechanisms involved in the extraordinary freeze tolerance conferred by CspBPi, we identified the responsible domain by mutational analysis. Changes of residues in the cold shock domain that are crucial for binding RNA or single-stranded DNA did not impair the ability of the host to survive freezing stress. All domain-shuffled CspBPi variants containing the N terminal domain retained the ability to confer superior freeze-tolerance. Slow electrophoretic mobility and far-UV circular dichroism spectra of the N-terminal domain suggested an intrinsically disordered structure for this region. The N terminal domain also bound to lipid vesicles in vitro. This lipid vesicle binding characteristic is shared with other intrinsically disordered proteins, such as alpha-synuclein and plant dehydrins, known to confer cold-tolerance when overexpressed, suggesting a mechanism for cold-survival through membrane binding. PMID- 29330048 TI - B cell activation in the cecal patches during the development of an experimental colitis model. AB - Although previous studies have suggested that appendix seems to be involved in the colitis, the role of this in the pathogenesis remains unclear. In this study, we assessed the importance of appendiceal lymphoid follicles, specifically the cecal patches (CP) in mice, using an experimental colitis model. Treatment with oxazolone resulted in ulcerations particularly at CP with follicular expansion as well as colitis. The colitis was attenuated by either appendectomy or the absence of mature B cells. We therefore established an intravital imaging system accompanied by the fluorescence resonance energy transfer technology to analyze the dynamic immune response of CP B cells. Our observation revealed frequent Ca2+ signaling in CP B cells during the early phase of colitis development. These findings suggested that the CP B cells may be involved in the pathogenesis of colitis including inflammatory bowel diseases in humans. PMID- 29330049 TI - The histone demethylase PHF8 promotes adult acute lymphoblastic leukemia through interaction with the MEK/ERK signaling pathway. AB - Adult acute lymphoblastic leukemia (ALL) is a malignant disorder of lymphoid progenitor cells that is associated with a high risk of relapse and poor prognosis. Thus, novel pathogenic mechanisms and therapeutic targets need to be explored. Histone methylation is one of the most significant chromatin post translational modifications. Here, we show that the histone demethylase PHF8 is highly expressed in a large number of ALL clinical specimens and that PHF8 expression is associated with ALL progression. PHF8 knockdown inhibits proliferation and promotes the apoptosis of ALL cells in vitro as well as attenuates tumor growth in vivo. PHF8 transcriptionally upregulates MEK1, a key molecule in the MEK/ERK pathway, at least partially by directly binding to its promoter, thereby activating the MEK/ERK pathway. In addition, we found that an inhibitor of the MEK/ERK pathway, PD184352, subsequently suppresses PHF8 expression. Thus, PHF8 forms a positive feedback loop with the MEK/ERK pathway, and PHF8 knockdown enhances the lethality of PD184352 in ALL cells. In conclusion, this study identifies oncogenic functions of PHF8 in adult ALL and suggests a novel epigenetic strategy for disease intervention. PMID- 29330050 TI - Production and characterization of a novel site-specific-modifiable anti-OX40 receptor single-chain variable fragment for targeted drug delivery. AB - OX40 receptor (tumor necrosis factor receptor superfamily, member 4; CD134) is a T-cell co-stimulatory molecule that plays an important role in T-cell activation and survival. OX40 receptor is activated by its ligand, OX40L; and modulation of the OX40-OX40L interaction is a promising target for the treatment of autoimmune diseases and cancers. Here, we generated a high-affinity anti-OX40 single-chain variable fragment carrying a C-terminal cysteine residue (scFvC). Physicochemical and functional analyses revealed that the scFvC bound to OX40-expressing cells and was internalized via OX40-mediated endocytosis without inducing phosphorylation of IkappaBalpha (nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha), an important complex in the classical NFkappaB (nuclear factor kappa-light-chain-enhancer of activated B cells) signaling pathway. In addition, mutation of the 36th cysteine residue in variable region of light chain enabled site-specific chemical modification to carboxy terminal cysteine and improved the thermal stability of the scFvC. These results suggest that this novel high-affinity anti-OX40 scFvC may be useful as a transporter for targeted delivery of small compounds, proteins, peptides, liposomes, and nanoparticles, into OX40-expressing cells for the treatment of autoimmune diseases and cancers. PMID- 29330051 TI - Anti-tumor effects of triptolide on angiogenesis and cell apoptosis in osteosarcoma cells by inducing autophagy via repressing Wnt/beta-Catenin signaling. AB - Osteosarcoma is a common malignant bone tumor occurring in adolescents and children. The poor prognosis and low 5-year survival rate of osteosarcoma partly due to high metastasis of osteosarcoma. Triptolide (TPL), an extract from Tripterygium wilfordii, is widely used in cancer treatment. In our present study, we aimed to study the effect of TPL in osteosarcoma treatment and explore the associated regulation mechanism. Our study revealed that TPL inhibited angiogenesis by suppressing the expression of hypoxia inducible factor-1alpha (HIF-1alpha) and vascular endothelial growth factor (VEGF) in dose dependent manner. Besides, cell apoptosis was induced by TPL obviously in dose dependent manner. Further study demonstrated that TPL induced obvious cell autophagy with increased concentration. The cooperation of autophagy inhibitor 3-MA abolished the effect of TPL on anti-angiogenesis and apoptosis promoting. Moreover, we found that Wnt/beta-Catenin signaling was inactivated by TPL and the adding of pathway inducer Licl neutralized the effect of TPL on autophagy induction, anti angiogenesis and apoptosis promoting. Taken together, we suggested that TPL inhibited angiogenesis and induced cell apoptosis in osteosarcoma cells by inducing autophagy via repressing Wnt/beta-Catenin signaling. PMID- 29330053 TI - Clinical challenges of antimicrobial photodynamic therapy for bovine mastitis. PMID- 29330052 TI - ESCO2 knockdown inhibits cell proliferation and induces apoptosis in human gastric cancer cells. AB - Establishment of cohesion 1 homolog 2 (ESCO2), an essential gene for cohesion regulation and genomic stability, has not been studied in human gastric cancer (GC). We found that ESCO2 knockdown in human GC cell lines dramatically inhibited cell proliferation and induced cell apoptosis in vitro and suppressed tumor xenograft development in vivo. Furthermore, adenosine monophosphate-activated protein kinase (AMPK) was activated following the suppression of its downstream targets, including mammalian target of rapamycin (mTOR) and p70 ribosomal S6 kinase 1 (p70S6K1), and this result was consistent with p53 activation. Significantly, co-immunoprecipitation (Co-IP) analyses indicated that ESCO2 can interact with p53 in GC cells. Taken together, our data demonstrate that ESCO2 is essential for the development of GC and might be a potential therapeutic target for treating GC. PMID- 29330054 TI - Deterministic stability regimes and noise-induced quasistable behavior in a pair of reciprocally inhibitory neurons. AB - Reciprocal inhibition is a common motif exploited by neuronal networks; an intuitive and tractable way to examine the behaviors produced by reciprocal inhibition is to consider a pair of neurons that synaptically inhibit each other and receive constant or noisy excitatory driving currents. In this work, we examine reciprocal inhibition using two models (a voltage-based and a current based integrate-and-fire model with instantaneous or temporally structured input), and we use analytic and computational tools to examine the bifurcations that occur and study the various possible monostable, bistable, and tristable regimes that can exist; we find that, depending on system parameters (and on choice of neuron model), there can exist up to 3 distinct monostable regimes (denoted M0, M1, M2), 3 distinct bistable regimes (denoted B, B1, B2), and a single tristable regime (denoted T). We also find that synaptic inhibition exerts independent control over the two neurons - inhibition from neuron 1 to neuron 2 governs the spiking behavior of neuron 2 but has no impact on the spiking behavior of neuron 1 (and vice versa). The excitatory driving current, however, does not exhibit this property - the excitatory current to neuron 1 affects the spiking behavior of both neurons 1 and 2 (as does the excitatory current to neuron 2). Furthermore, we develop a methodology to examine the behavior of the system when the excitatory driving currents are allowed to be noisy, and we investigate the relationship between the behavior of the noisy system with the stability regime of the corresponding deterministic system. PMID- 29330055 TI - Tissue geometry may govern lung branching mode selection. AB - Lung branching morphogenesis proceeds in three stereotyped modes (domain, planar, and orthogonal branching). Much is known about the molecular players, including growth factors such as fibroblast growth factor 10 but it is unknown how these signals could actuate the different branching patterns. With the aim of identifying mechanisms that may determine the different branching modes, we developed a computational model of the epithelial lung bud and its surrounding mesenchyme. We studied transport of morphogens and localization of morphogen flux at lobe surfaces and lobe edges. We find that a single simple mechanism is theoretically capable of directing an epithelial tubule to elongate, bend, flatten, or bifurcate, depending solely on geometric ratios of the tissues in the vicinity of a growing tubule tip. Furthermore, the same simple mechanism is capable of generating orthogonal or planar branching, depending only on the same geometric ratios. PMID- 29330056 TI - Growth scaling for the early dynamics of HIV/AIDS epidemics in Brazil and the influence of socio-demographic factors. AB - The early dynamics of an infectious disease outbreak can be affected by various factors including the transmission mode of the disease and host-specific factors. While recent works have highlighted the presence of sub-exponential growth patterns during the early phase of epidemics, empirical studies examining the contribution of different factors to early epidemic growth dynamics are lacking. Here we aim to characterize and explain the early incidence growth patterns of local HIV/AIDS epidemics in Brazil as a function of socio-demographic factors. For this purpose, we accessed annual AIDS incidence series and state-level socio demographic variables from publicly available databases. To characterize the early growth dynamics of the HIV/AIDS epidemic, we employed the generalized growth model to estimate with quantified uncertainty the scaling of growth parameter (p) which captures growth patterns ranging from constant incidence (p=0) to sub-exponential (0 < p < 1) and exponential growth dynamics (p=1) at three spatial scales: national, regional, and state levels. We evaluated the relationship between socio-demographic variables and epidemic growth patterns across 27 Brazilian states using mixed-effect regression analyses. We found wide variation in the early dynamics of the AIDS epidemic in Brazil, displaying sub exponential growth patterns with the p parameter estimated substantially below 1.0. The mean p was estimated to be 0.81 at the national level, with a range of 0.72-0.85 at the regional level, and a range of 0.28-0.96 at the state level. Our findings support the notion that socio-demographic factors contribute to shaping the early growth dynamics of the epidemic at the local level. Gini index and socio-demographic index were negatively associated with the parameter p, whereas urbanicity was positively associated with p. The results could have theoretical significance in understanding differences in growth scaling across different sexually transmitted disease systems, and have public health implications to guide control. PMID- 29330057 TI - Fixation and absorption in a fluctuating environment. AB - A fundamental problem in the fields of population genetics, evolution, and community ecology, is the fate of a single mutant, or invader, introduced in a finite population of wild types. For a fixed-size community of N individuals, with Markovian, zero-sum dynamics driven by stochastic birth-death events, the mutant population eventually reaches either fixation or extinction. The classical analysis, provided by Kimura and his coworkers, is focused on the neutral case, [where the dynamics is only due to demographic stochasticity (drift)], and on time-independent selective forces (deleterious/beneficial mutation). However, both theoretical arguments and empirical analyses suggest that in many cases the selective forces fluctuate in time (temporal environmental stochasticity). Here we consider a generic model for a system with demographic noise and fluctuating selection. Our system is characterized by the time-averaged (log)-fitness s0 and zero-mean fitness fluctuations. These fluctuations, in turn, are parameterized by their amplitude gamma and their correlation time delta. We provide asymptotic (large N) formulas for the chance of fixation, the mean time to fixation and the mean time to absorption. Our expressions interpolate correctly between the constant selection limit gamma -> 0 and the time-averaged neutral case s0=0. PMID- 29330058 TI - Haptoglobin and serum amyloid A as putative biomarker candidates of naturally occurring bovine respiratory disease in dairy calves. AB - Bovine respiratory disease (BRD) is one of the leading causes of morbidity and mortality in dairy calves. Identification of reliable biomarkers of naturally occurring BRD is essential for ensuring early diagnosis and treatment of calves and monitoring treatment efficacy. This need is punctuated, especially in mild to moderate cases that would greatly help to decrease recurrence and the overall prevalence of BRD. The present study was conducted to investigate the changes in serum concentrations of haptoglobin (Hpt) and serum amyloid A (SAA) and association between oxidative stress and acute phase proteins (APPs) in BRD. Hpt and SAA levels significantly increased (P < .01) in BRD stressed calves as compared to healthy subjects. There was a significant decrease (P < .01) in serum albumin (Alb) concentration of infected calves as compared to controls. The oxidative stress markers revealed a significant (P < .01) increase in lipid peroxidation (LPO) and a concurrent decrease in activities of superoxide dismutase (SOD), reduced glutathione (R-GSH) and catalase (CAT) in BRD. A significant correlation among APPs, extent of oxidative stress and clinical score (CS) of calves was depicted. A stepwise decrease in Hpt and SAA and increase in Alb was observed in infected calves post-treatment. These results suggest implication of oxidative stress in enhancing APPs and monitoring of APPs as a potential complement to clinical assessment of treatment in calves with naturally occurring BRD. Hpt may be useful as the most sensitive biomarker in BRD. However, the combined use of Hpt and oxidative stress biomarkers would greatly improve the diagnostic accuracy. PMID- 29330059 TI - Biosynthesis, characterization and antimicrobial activities of zinc oxide nanoparticles from leaf extract of Glycosmis pentaphylla (Retz.) DC. AB - Biosynthesized nanoparticles have an incredible application in biomedicine owing to its simplicity, eco-friendly properties and low cost. The present study aims to determine the green synthesized zinc oxide nanoparticles from methanolic leaf extract of Glycosmis pentaphylla. The synthesized nanoparticles were characterized using UV-VIS Spectroscopy, Fluorescence spectrometer, FT-IR, XRD, SEM with EDAX and TEM. The confirmations of synthesized nanoparticles were characterized by peak at 351 and 410 nm in the UV-VIS spectrum and photoluminescence spectrum respectively. FT-IR studies revealed the functional group of the nanoparticles. The XRD data showed the crystalline nature of the nanoparticles and EDAX measurements indicated the 20.70% of highly pure zinc oxide metal. The morphological characterization of synthesized zinc oxide nanoparticles was analyzed by SEM and TEM and size of the particles were ranging from 32 to 36 nm. The synthesized zinc oxide nanoparticles exhibited interesting antimicrobial activity against pathogenic organisms. In addition, this is the first report on leaf mediated synthesis of zinc oxide (ZnO) nanoparticles from Glycosmis pentaphylla. PMID- 29330060 TI - Induction of innate immune response following introduction of infectious bronchitis virus (IBV) in the trachea and renal tissues of chickens. AB - Infectious bronchitis (IB) is a highly contagious respiratory disease of chickens, which is caused by the infectious bronchitis virus (IBV). The innate immune response is crucial for antiviral infections and revealing the pathogenic mechanisms of IBV. In this study, we presents an evaluation of interferon (I, II and III IFNs) in renal and tracheal samples from chickens experimentally infected previously vaccinated or not. The results suggest differential expression of chicken interferon, among them type I IFN elaborate a major role in fighting off virus. And vaccine confers greater induction ability of innate immunity thereby vaccination prior infection occurs might be necessary. Above all, we found that IFN-lambda also have an effect on IBV infection in trachea besides many other respiratory virus. This study provides the first comprehensive analysis of host virus interactions of IBV with chicken innate immune response mediated by interferon in various groups. PMID- 29330061 TI - Forsythoside A inhibited S. aureus stimulated inflammatory response in primary bovine mammary epithelial cells. AB - Forsythoside A (FTA), the major bioactive component extracted from Forsythiae fructus, has multiple biological properties especially anti-inflammatory property. Staphylococcus aureus (S. aureus), a Gram-positive organism, is one of most common pathogens that cause bovine mastitis. This study evaluated the anti inflammatory effect of FTA in S. aureus-stimulated primary bovine mammary epithelial cells (bMEC). Primary bovine mammary epithelial cells were isolated from the mammary tissue of lactating cows and identified as bMEC. The cell viability of bMEC was analyzed by MTT. The bMEC were stimulated with S. aureus in the presence or absence of FTA. Subsequently, the expression level of pro inflammatory cytokines was determined by quantitative real-time polymerase chain reaction (qRT-PCR). Nuclear factor-kappaB (NF-kappaB), inhibitor protein of NF kappaB (IkappaBalpha), p38, extracellular signal-regulated protein kinase (ERK), and c-JunN-terminal kinase (JNK) were measured by western blotting. The results showed that the cell viability was not affected by the FTA. FTA markedly down regulated the expressions of TNF-alpha, IL-1beta and IL-6 in S. aureus-stimulated bMEC. In addition, FTA was found to suppress S. aureus-induced NF-kappaB and MAPKs activation in a dose-dependent manner. These results indicated that FTA exerted anti-inflammatory property in S. aureus-stimulated bMEC by interfering the activation of NF-kappaB and MAPKs signaling pathways. Thereby, FTA may be a potential therapeutic agent against inflammatory disease. PMID- 29330062 TI - Fundus Densitometry Findings Suggest Optic Disc Hemorrhages in Primary Open-Angle Glaucoma Have an Arterial Origin. AB - PURPOSE: To analyze optic disc hemorrhages (DH) associated with primary open angle glaucoma by quantifying their geometric profile and comparing their densitometry with hemorrhages from retinal vein occlusions (RVO) and retinal macroaneurysms (MA), which have venous and arterial sources of bleeding, respectively. DESIGN: Retrospective cross-sectional study. METHODS: Setting: Massachusetts Eye & Ear. POPULATION: Fundus images of DH (n = 40), MA (n = 14), and RVO (n = 25) were identified. Patient clinical backgrounds and demographics were obtained. MAIN OUTCOME MEASURES: Grayscale pixel intensity units of hemorrhages and adjacent arteriole and venule over the same background tissue were measured. Densitometry differentials (arteriole or venule minus hemorrhage [DeltaA and DeltaV, respectively]) were calculated. The ratios of length (radial) to midpoint width for DH were calculated. Mean DeltaA and DeltaV between groups were compared with t tests. Multiple linear regression assessed the relation of retinal hemorrhage diagnosis to DeltaA and DeltaV and of DH shape to DeltaA and DeltaV. RESULTS: Mean (+/- standard deviation) DeltaA and DeltaV for DH (6.9 +/- 7.1 and -4.7 +/- 8.0 pixel intensity units, respectively) and MA (5.3 +/- 5.9 and -6.0 +/- 4.6, respectively) were comparable (P >= .43). Mean DeltaA (14.6 +/- 7.7) and DeltaV (6.4 +/- 6.3) for RVO were significantly higher compared to DH and MA (P < .0001) and remained significant in multivariable analyses. A unit increase in DH length-to-width ratio was associated with 1.2 (0.5) and 1.3 (0.5) pixel intensity unit (standard error) decrease in DeltaA and DeltaV, respectively (P <= .014). CONCLUSIONS: DH have densitometry profiles comparable to MA and different from RVO, suggesting that DH in glaucoma have an arterial origin. PMID- 29330063 TI - Risk of Ischemic Kidney Injury in Patients With Nonarteritic Anterior Ischemic Optic Neuropathy: A Nationwide Population-based Study. AB - PURPOSE: To investigate the risk of acute tubular necrosis (ATN) in patients with nonarteritic anterior ischemic optic neuropathy (NAION). DESIGN: Population-based cohort study. METHODS: This is a nationwide, population-based, retrospective study using data from the Korean national health claims database from 2011 through 2015. Patients with NAION and randomly selected control subjects from the entire population of South Korea were enrolled. A log-rank analysis was used to evaluate a risk of ATN in the group of patients with NAION (study group) compared to an age-, sex-, and comorbidities-matched control group. Comorbidities included diabetes, chronic lung disease, congestive heart failure, ischemic stroke, anemia, septic shock, and antibiotic use. A Cox proportional hazards regression analysis with cluster effect was performed to calculate the adjusted hazard ratio (aHR) of ATN. RESULTS: A total of 22 498 patients were included in the study group and 31 475 in the control group. Twenty-six cases of ATN were observed in the NAION group and 11 in the control group. The study group was more likely to have ATN (aHR = 2.55, 95% confidence interval: 1.50-5.91, P = .029) than the control group. Among the 26 newly developed cases of ATN, 13 (50%) occurred in the 0-6 months before/after NAION. CONCLUSIONS: We demonstrated that subjects with NAION are at increased risk of ATN and suggested a possible common mechanistic link between the 2 diseases. These results provide significant evidence that proper patient education and further systemic evaluation of the possibility of ATN development are required in patients with NAION. PMID- 29330065 TI - Stargazin differentially modulates ampakine gating kinetics and pharmacology. AB - It was previously reported that Stargazin (STG) enhances the surface expression of AMPA receptors, controls receptor gating and slows channel desensitization as an auxiliary subunit of the receptors. Ampakines are a class of AMPA receptor positive allosteric modulators that modify rates of transmitter binding, channel activity and desensitization parameters. As such, they have shown efficacy in animal models of neurodegenerative diseases, where excitatory synaptic transmission is compromised. Given the functional similarities between STG and ampakines, the current study sought to probe interactions between STG and ampakine gating properties. The effects of the high impact ampakines, CX614 and cyclothiazide (CTZ), were compared with homomeric GluR1-flip (Glur1i) and GluR2 flop (Glur2o) receptors expressed in HEK293 cells by transient transfection with or without STG gene. STG dramatically enhanced the surface expression of AMPA receptors and increased glutamate-induced steady-state currents during desensitization. STG also increased ratios of 500 MUM kainate and 500 MUM glutamate activated steady-state currents. STG reduced association rates of ampakines and differentially affected the dissociation rates for both CX614 and CTZ on desensitized receptors. The estimated Kd value for CX614 was lowered from 340 MUM to 70 MUM, whereas that for CTZ was lowered from 170 MUM to 6 MUM by STG. The data suggest that Stargazin can dramatically alter the conformation of the receptor dimer interface where CX614 and CTZ are known to bind. This work also demonstrates the importance of considering STG interactions when developing ampakines to treat neurodegenerative diseases in which AMPAergic signaling is compromised. PMID- 29330064 TI - Antiplatelet and Anticoagulant Drugs Do Not Affect Visual Outcome in Neovascular Age-Related Macular Degeneration in the BRAMD Trial. AB - PURPOSE: To determine if use of antiplatelet or anticoagulant (AP/AC) medication influences visual acuity in patients with active neovascular age-related macular degeneration (N-AMD). DESIGN: Retrospective analysis of data from a randomized controlled trial. METHODS: Setting: Multicenter. STUDY POPULATION: Total of 330 patients with active N-AMD from the BRAMD study, a comparative trial between bevacizumab and ranibizumab in the Netherlands. OBSERVATION PROCEDURES: Patients underwent an extensive ophthalmic examination. Visual acuity was categorized into functional vision (best-corrected visual acuity [BCVA] >= 0.5), visual impairment (BCVA < 0.5), and severe visual impairment (BCVA < 0.3). Fundus photographs were graded for presence of retinal or subretinal hemorrhages. Information on AP/AC medication was obtained through interview. Logistic regression analysis was used to determine associations between AP/AC medication and outcomes. Frequency of hemorrhages in users and non-users stratified for visual acuity categories was analyzed with ANCOVA. MAIN OUTCOME MEASURES: BCVA and presence of hemorrhages. RESULTS: In total, 40.9% of the patients used AP/AC medication, of which 73.3% was aspirin. AP/AC use was not associated with visual impairment (adjusted odds ratio [OR] 0.79; 95% confidence interval [CI] 0.43-1.44) or severe visual impairment (adjusted OR 0.75; 95% CI 0.40-1.43). Patients on AP/AC presented with comparable frequencies of hemorrhages (27% vs 32%, P = .32, respectively). Similar results were found when analyses were restricted to aspirin users only. CONCLUSION: In our study, use of AP/AC medication was associated neither with visual decline nor with the occurrence of hemorrhages in patients with active N AMD. PMID- 29330067 TI - Protein complexes as psychiatric and neurological drug targets. AB - The need for improved medications for psychiatric and neurological disorders is clear. Difficulties in finding such drugs demands that all strategic means be utilized for their invention. The discovery of forebrain specific AMPA receptor antagonists, which selectively block the specific combinations of principal and auxiliary subunits present in forebrain regions but spare targets in the cerebellum, was recently disclosed. This discovery raised the possibility that other auxiliary protein systems could be utilized to help identify new medicines. Discussion of the TARP-dependent AMPA receptor antagonists has been presented elsewhere. Here we review the diversity of protein complexes of neurotransmitter receptors in the nervous system to highlight the broad range of protein/protein drug targets. We briefly outline the structural basis of protein complexes as drug targets for G-protein-coupled receptors, voltage-gated ion channels, and ligand-gated ion channels. This review highlights heterodimers, subunit-specific receptor constructions, multiple signaling pathways, and auxiliary proteins with an emphasis on the later. We conclude that the use of auxiliary proteins in chemical compound screening could enhance the detection of specific, targeted drug searches and lead to novel and improved medicines for psychiatric and neurological disorders. PMID- 29330068 TI - Engineering of hydroxymandelate synthases and the aromatic amino acid pathway enables de novo biosynthesis of mandelic and 4-hydroxymandelic acid with Saccharomyces cerevisiae. AB - Mandelic acid (MA) and 4-hydroxymandelic acid (HMA) are valuable specialty chemicals used as precursors for flavors as well as for cosmetic and pharmaceutical purposes. Today they are mainly synthesized chemically. Their synthesis through microbial fermentation would allow for environmentally sustainable production. In this work, we engineered the yeast Saccharomyces cerevisiae for high-level production of MA and HMA. Expressing the hydroxymandelate synthase from Amycolatopsis orientalis in a yeast wild type strain resulted in the production of 119mg/L HMA from glucose. As the enzyme also accepts phenylpyruvate as a substrate aside from its native substrate 4 hydroxyphenylpyruvate, 0.7mg/L MA was also produced. Preventing binding of 4 hydroxyphenylpyruvate to the hydroxymandelate synthase by introducing a S201V replacement in its substrate binding site nearly completely prevented HMA production but increased MA production only 3.5-fold. To further increase HMA and MA production, the aromatic amino acid pathway was engineered. We increased the precursor supply by introducing modifications in the shikimic acid pathway (ARO1?, ARO3K222L?, ARO4K220L?) and reducing flux into the Ehrlich pathway (aro10Delta), and thereby enhanced the HMA titer to 465mg/L and the MA titer to 2.9mg/L. A further increase in HMA and MA titers was achieved by replacing the hydroxymandelate synthase from A. orientalis with the corresponding enzyme from Nocardia uniformis. Subsequently, we introduced additional deletions to block the competing tryptophan branch (trp2Delta), to further decrease flux into the Ehrlich pathway (pdc5Delta) and to avoid transamination of phenylpyruvate and 4 hydroxyphenylpyruvate (aro8Delta, aro9Delta). We achieved more than 1g/L 4 hydroxymandelate when additionally preventing formation of phenylpyruvate by deleting PHA2. When deleting TYR1 to prevent formation of 4-hydroxyphenylpyruvate instead, an MA titer of 236mg/L was achieved. This is a more than 200-fold increase in MA production compared to the wild type strain expressing the hydroxymandelate synthase from A. orientalis. Finally, we showed that S. cerevisiae tolerates HMA and MA to concentrations as high as 3g/L and 7.5g/L, respectively. Our results demonstrate that S. cerevisiae is a promising host for sustainable MA and HMA production. PMID- 29330070 TI - Neutropenia as a Complication of Tumefactive Demyelinating Disease: A Case Report. AB - : Tumefactive demyelination is an aggressive, localized, generally solitary area of demyelination that often mimics a neoplasm. We present a case of a 13-year-old female patient who presented with sudden-onset progressive hemiplegia and hemianopsia. Magnetic resonance imaging of the brain showed tumefactive demyelination with partial rim of enhancement. During inpatient rehabilitation, she developed myalgias, rash, and abdominal and mouth pain with evidence for severe neutropenia. The neutropenia was determined to be a secondary complication of the tumefactive disease process. This scenario may be concerning in an inpatient rehabilitation setting, as patients share common areas, increasing the risk of acquired infection while neutropenic. LEVEL OF EVIDENCE: V. PMID- 29330069 TI - Conformation and Trimer Association of the Transmembrane Domain of the Parainfluenza Virus Fusion Protein in Lipid Bilayers from Solid-State NMR: Insights into the Sequence Determinants of Trimer Structure and Fusion Activity. AB - Enveloped viruses enter cells by using their fusion proteins to merge the virus lipid envelope and the cell membrane. While crystal structures of the water soluble ectodomains of many viral fusion proteins have been determined, the structure and assembly of the C-terminal transmembrane domain (TMD) remains poorly understood. Here we use solid-state NMR to determine the backbone conformation and oligomeric structure of the TMD of the parainfluenza virus 5 fusion protein. 13C chemical shifts indicate that the central leucine-rich segment of the TMD is alpha-helical in POPC/cholesterol membranes and POPE membranes, while the Ile- and Val-rich termini shift to the beta-strand conformation in the POPE membrane. Importantly, lipid mixing assays indicate that the TMD is more fusogenic in the POPE membrane than in the POPC/cholesterol membrane, indicating that the beta-strand conformation is important for fusion by inducing membrane curvature. Incorporation of para-fluorinated Phe at three positions of the alpha-helical core allowed us to measure interhelical distances using 19F spin diffusion NMR. The data indicate that, at peptide:lipid molar ratios of ~1:15, the TMD forms a trimeric helical bundle with inter-helical distances of 8.2-8.4A for L493F and L504F and 10.5A for L500F. These data provide high-resolution evidence of trimer formation of a viral fusion protein TMD in phospholipid bilayers, and indicate that the parainfluenza virus 5 fusion protein TMD harbors two functions: the central alpha-helical core is the trimerization unit of the protein, while the two termini are responsible for inducing membrane curvature by transitioning to a beta-sheet conformation. PMID- 29330071 TI - OnabotulinumtoxinA for the Treatment of Poststroke Distal Lower Limb Spasticity: A Randomized Trial. AB - BACKGROUND: Poststroke distal lower limb spasticity impairs mobility, limiting activities of daily living and requiring additional caregiver time. OBJECTIVE: To evaluate the efficacy, safety, and sustained benefit of onabotulinumtoxinA in adults with poststroke lower limb spasticity (PSLLS). DESIGN: A multicenter, randomized, double-blind, phase 3, placebo-controlled trial (NCT01575054). SETTING: Sixty study centers across North America, Europe, Russia, the United Kingdom, and South Korea. PATIENTS: Adult patients (18-65 years of age) with PSLLS (Modified Ashworth Scale [MAS] >=3) of the ankle plantar flexors and the most recent stroke >=3 months before study enrollment. INTERVENTIONS: During the open-label phase, patients received <=3 onabotulinumtoxinA treatments (<=400 U) or placebo at approximately 12-week intervals. Treatments were into the ankle plantar flexors (onabotulinumtoxinA 300 U into ankle plantar flexors; <=100 U, optional lower limb muscles). MAIN OUTCOME MEASUREMENTS: The double-blind primary endpoint was MAS change from baseline (average score at weeks 4 and 6). Secondary measures included physician-assessed Clinical Global Impression of Change (CGI), MAS change from baseline in optional muscles, Goal Attainment Scale (GAS), and pain scale. RESULTS: Of 468 patients enrolled, 450 (96%) completed the double blind phase and 413 (88%) completed the study. Small improvements in MAS observed with onabotulinumtoxinA during the double-blind phase (onabotulinumtoxinA, -0.8; placebo, -0.6, P = .01) were further enhanced with additional treatments through week 6 of the third open-label treatment cycle (onabotulinumtoxinA/onabotulinumtoxinA, -1.2; placebo/onabotulinumtoxinA, -1.4). Small improvements in CGI observed during the double-blind phase (onabotulinumtoxinA, 0.9; placebo, 0.7, P = .01) were also further enhanced through week 6 of the third open-label treatment cycle (onabotulinumtoxinA/onabotulinumtoxinA, 1.6; placebo/onabotulinumtoxinA, 1.6). Physician- and patient-assessed GAS scores improved with each subsequent treatment. No new safety signals emerged. CONCLUSIONS: OnabotulinumtoxinA significantly improved ankle MAS, CGI, and GAS scores compared with placebo; improvements were consistent and increased with repeated treatments of onabotulinumtoxinA over 1 year in patients with PSLLS. LEVEL OF EVIDENCE: I. PMID- 29330072 TI - Chronic Thigh Pain in a Young Adult Diagnosed as Synovial Sarcoma: A Case Report. AB - : Synovial sarcoma is a slow-growing, intermediate- to high-grade neoplasm with extensive metastatic potential. Accurate diagnosis of synovial sarcoma may pose a challenge to providers because of its indolent growth and variable presentation. The findings of a soft-tissue, periarticular mass with calcifications in a young patient are highly suggestive of synovial sarcoma. Although different imaging modalities can aid in the diagnosis of synovial sarcoma, diagnostic certainty is typically only confirmed by biopsy and histologic analysis. We present a case describing the diagnostic workup of synovial sarcoma with an emphasis on imaging findings in a patient with increasing symptomatology spanning more than a decade. LEVEL OF EVIDENCE: V. PMID- 29330074 TI - A nonlinear continuous-time model for a semelparous species. AB - Periodical semelparous insects such as cicadas and May beetles exhibit synchronization in age classes such that only one age class is present at any point of time. This leads to outbreaks of adults as they all reach maturity around the same time. Discrete-time models of semelparous species have shown that this type of synchronous cycling can occur as a result of greater between-class competition relative to within-class competition. However, relatively few studies have examined continuous-time models of semelparous species. Here we develop a continuous-time model for a semelparous species using a technique called the linear chain trick to convert a non-linear McKendrick partial differential equation into a finite system of ordinary differential equations. We represent semelparity by a birth function whose age distribution can be made arbitrarily narrow. We show that a Hopf bifurcation may occur in this model as a result of competition between reproducing and non-reproducing classes. This bifurcation leads to stable cycles in which the two classes are out of phase, thus providing a continuous-time counterpart to the synchronous cycles that occur in discrete time models. PMID- 29330073 TI - The Association of Clinic-Based Mobility Tasks and Measures of Community Performance and Risk. AB - INTRODUCTION: Gait speed is recognized as an important predictor of adverse outcomes in older people. However, it is unknown whether other more complex mobility tasks are better predictors of such outcomes. OBJECTIVE: To examine a range of clinic-based mobility tests and determine which were most strongly associated with measures of community performance and risk (CP&R). DESIGN: Cross sectional study. SETTING: Central Control Mobility and Aging Study, Westchester County, New York. PARTICIPANTS: Aged >=65 years (n = 424). METHODS: Clinic-based mobility measures included gait speed measured during normal and dual-task conditions, the Floor Maze Immediate and Delay tasks, and stair ascending and descending. CP&R measures were self-reported by the use of standardized questionnaires and classified into measures of performance (distance walked, travel outside one's home [life space], activities of daily living, and participation in cognitive leisure activities) or risk (balance confidence, fear of falling, and past falls). Linear and logistic regression were used to examine associations between the clinic-based mobility measures and CP&R measures adjusting for covariates. RESULTS: The mean age of the sample was 77.8 (SD 6.4) years, and 55.2% (n = 234) were female. In final models, faster normal walking speed was most strongly associated with 5 of the 7 community measures (greater distance walked, greater life space, better activities of daily living function, higher balance confidence, and less fear of falling; all P < .05). More complex tasks (walking while talking and maze immediate) were associated with cognitive leisure activity (P < .05), and ascending stairs was the only measure associated with a history of falls (P < .05). CONCLUSION: Normal walking speed is a simple and inexpensive clinic-based mobility test that is associated with a wide range of CP&R measures. In addition, poorer performance ascending stairs may assist in identifying those at risk of falls. Poorer performance in more complex mobility tasks (walking while talking and maze immediate) may suggest inability to participate in cognitive leisure activities. LEVEL OF EVIDENCE: III. PMID- 29330066 TI - Regulation of vascular tone homeostasis by NO and H2S: Implications in hypertension. AB - Nitric oxide (NO) and hydrogen sulfide (H2S) are two gasotransmitters that are produced in the vasculature and contribute to the regulation of vascular tone. NO and H2S are synthesized in both vascular smooth muscle and endothelial cells; NO functions primarily through the sGC/cGMP pathway, and H2S mainly through activation of the ATP-dependent potassium channels; both leading to relaxation of vascular smooth muscle cells. A deficit in the NO/H2S homeostasis is involved in the pathogenesis of various cardiovascular diseases, especially hypertension. It is now becoming increasingly clear that there are important interactions between NO and H2S and that have a profound impact on vascular tone and this may provide insights into the new therapeutic interventions. The aim of this review is to provide a better understanding of individual and interactive roles of NO and H2S in vascular biology. Overall, available data indicate that both NO and H2S contribute to vascular (patho)physiology and in regulating blood pressure. In addition, boosting NO and H2S using various dietary sources or donors could be a hopeful therapeutic strategy in the management of hypertension. PMID- 29330075 TI - The epidemic model based on the approximation for third-order motifs on networks. AB - The spread of an infectious disease may depend on the structure of the network. To study the influence of the structure parameters of the network on the spread of the epidemic, we need to put these parameters into the epidemic model. The method of moment closure introduces structure parameters into the epidemic model. In this paper, we present a new moment closure epidemic model based on the approximation of third-order motifs in networks. The order of a motif defined in this paper is determined by the number of the edges in the motif, rather than by the number of nodes in the motif as defined in the literature. We provide a general approach to deriving a set of ordinary differential equations that describes, to a high degree of accuracy, the spread of an infectious disease. Using this method, we establish a susceptible-infected-recovered (SIR) model. We then calculate the basic reproduction number of the SIR model, and find that it decreases as the clustering coefficient increases. Finally, we perform some simulations using the proposed model to study the influence of the clustering coefficient on the final epidemic size, the maximum number of infected, and the peak time of the disease. The numerical simulations based on the SIR model in this paper fit the stochastic simulations based on the Monte Carlo method well at different levels of clustering. Our results show that the clustering coefficient poses impediments to the spread of disease under an SIR model. PMID- 29330076 TI - Frontoethmoidal Schwannoma with Exertional Cerebrospinal Fluid Rhinorrhea: Case Report and Review of Literature. AB - BACKGROUND: Frontoethmoidal schwannomas are rare. No case manifesting exertional cerebrospinal fluid (CSF) rhinorrhea has ever been reported to the best of our knowledge. CASE DESCRIPTION: In this report, we describe an extremely rare case of frontoethmoidal schwannoma extending through the olfactory groove with exertional CSF rhinorrhea as the initial symptom. A 50-year-old woman was presented to our clinic for frequent nasal discharge on exertion. A postcontrast computed tomographic scan demonstrated heterogeneously enhanced tumor from the anterior cranial fossa to the anterior ethmoid sinus. A gadolinium-enhanced T1 weighted magnetic resonance image revealed a well-defined heterogeneously enhanced tumor situated in the midline anterior cranial fossa and anterior ethmoid sinus. After the resection, the defect of the right anterior skull base was reconstructed with a fascia graft and adipose tissue taken from the abdomen, as well as a pedicle periosteum flap. A histologic examination revealed the tumor as schwannoma. Her rhinorrhea completely resolved. She regained her sense of smell and taste 1 month after the operation. CONCLUSION: According to previous reports, olfactory groove, and paraolfactory groove/periolfactory groove schwannomas can be divided into 4 types: subfrontal, nasoethmoidal, frontoethmoidal, and ethmofrontal. Among them, a frontoethmoidal schwannoma can manifest exertional CSF rhinorrhea as an initial symptom. PMID- 29330078 TI - Intraoperative Flow Cytometry Enables the Differentiation of Primary Central Nervous System Lymphoma from Glioblastoma. AB - OBJECTIVE: Accurate preoperative and intraoperative differentiation between primary central nervous system lymphoma (PCNSL) and glioblastoma (GBM) is sometimes difficult. Distinguishing between these tumors during surgery is important because surgical treatment is different between the 2 tumors. In this study, we established a new method of intraoperative differentiation between PCNSL and GBM using intraoperative flow cytometry (iFC), and we retrospectively tested whether iFC was useful for the intraoperative diagnosis of PCNSL and GBM. METHODS: We analyzed the iFC data of 250 patients (28 with PCNSL and 222 with GBM) and then evaluated aneuploidy and S-phase population. RESULTS: Aneuploidy was detected in 54.5% of GBM cases but in only 7.14% of PCNSL cases. Aneuploidy indicated GBM, but it was difficult to distinguish PCNSL from GBM when a tumor had a diploid pattern. Thus, for tumors without aneuploidy, we evaluated the S phase population: S2, the ratio of the average height of the S-phase to the height of the diploid peak. S2 was significantly higher in PCNSL than in GBM. Based on these results, we established an algorithm for differentiating between PCNSL and GBM using DNA aneuploidy and S2. Comparing this new iFC algorithm and the permanent pathologic diagnosis, the sensitivity was 89.3%, the specificity was 93.7%, and the accuracy was 93.2%. CONCLUSIONS: iFC is useful for the intraoperative differentiation between PCNSL and GBM and it aids in intraoperative decision making within a short time. The accuracy of intraoperative diagnosis of these tumors seems to be higher with the combination of iFC and intraoperative rapid pathologic diagnosis. PMID- 29330077 TI - Blood Ethanol Levels Are Not Related to Coagulation Changes, as Measured by Thromboelastography, in Traumatic Brain Injury Patients. AB - BACKGROUND: Brain injury is a leading cause of death and disability in trauma patients. Ethanol (EtOH) use near the time of injury may contribute to worse outcomes in these patients by exacerbating coagulopathy. There are limited data regarding the effects of EtOH on coagulation and progression of traumatic intracranial hemorrhage (TICH). METHODS: We performed a retrospective analysis of a prospective observational study of 168 trauma patients with TBI at an urban level 1 trauma center. Thromboelastography (TEG) was performed on admission and over the subsequent 48 hours. Demographic, physiologic, and outcomes data were collected. Computed tomography imaging of the head performed within the first 48 hours of admission was analyzed for progression of TICH. RESULTS: Thirty-six percent of patients (n = 61) had positive blood EtOH on admission (median EtOH level = 198 mg/dL [range, 16-376 mg/dL]). EtOH-positive patients were less severely injured than EtOH-negative patients (P = 0.01). Other admission demographic and physiologic variables were similar between groups. There were no significant differences in TEG values between EtOH-positive and EtOH-negative patients on admission or during the subsequent 48 hours. There were no differences in radiographic progression of hemorrhage, the need for neurosurgical procedure, or mortality between EtOH-positive and EtOH-negative patients. CONCLUSIONS: EtOH use near the time of traumatic injury was not associated with alterations in coagulation, as measured by traditional coagulation tests or by TEG, in patients with TICH. Furthermore, a positive blood alcohol at admission was not associated with increased mortality or need for neurosurgical procedure these patients. PMID- 29330079 TI - Impact of Platelet Transfusion on Intracerebral Hemorrhage in Patients on Antiplatelet Therapy-An Analysis Based on Intracerebral Hemorrhage Score. AB - OBJECTIVE: Platelet transfusions for patients with intracerebral hemorrhage (ICH) on antiplatelet therapy (APT) remain controversial. Diverging past research and differences in platelet preparation warrant further investigation of this topic. In this study, the association between platelet transfusion and clinical outcomes of ICH is investigated in patients matched by ICH score, a validated predictor of mortality. METHODS: A consecutive review of all patients from 2012 to 2015 with nontraumatic ICH was performed. Risk factors including demographics, medical comorbidities, APT use, and ICH score were reviewed. Standardized differences were used to assess baseline characteristics; logistic regression models were performed to determine whether platelet transfusions were associated with adverse outcomes, both before and after matching for ICH score. RESULTS: A total of 538 patients with nontraumatic ICH were investigated. Of these, 168 were on APT; 71 were excluded. Thirty-nine patients (40%) received platelet transfusions and 58 (60%) did not. An overall mortality of 9.3% was measured, with 29.9% of patients enduring complications. In the unmatched cohort, patients who received platelet transfusions were more likely to deteriorate (odds ratio [OR], 4.7), undergo surgical intervention during their hospital stay (OR, 7.2), be discharged with a worse modified Rankin Scale score (OR, 3.6), or die (OR, 6.1). After matching by ICH score, platelet transfusion was not a significant predictor for any negative outcome. CONCLUSIONS: This is the first analysis of platelet transfusions in patients with ICH based on ICH score. For patients on APT, platelet transfusion is not associated with clinical outcomes in an ICH score-matched sample. PMID- 29330080 TI - Use of Pulsed Radiofrequency Energy Device (PEAK Plasmablade) in Neuromodulation Implant Revisions. AB - BACKGROUND: Battery replacement or revision surgery for neuromodulation implants is conventionally performed using sharp dissection. Meticulous dissection within thick scar tissue is vital to avoid damage to surrounding lead(s), which could result in more extensive revision surgery. Traditional electrosurgery devices are contraindicated as the emitted energy can be transferred to the hardware, resulting in implant or tissue damage with severe consequent complications. OBJECTIVE: We report our experience and potential applications of a novel, pulsed monopolar radiofrequency energy device (PEAK PlasmaBlade, Medtronic PLC, Minneapolis, Minnesota, USA), which facilitates dissection around implants without the risk of damaging or transmitting energy through the system. METHODS: We conducted a 2-center retrospective study to review the indications, safety, and efficacy of the PlasmaBlade in 57 cases requiring either neuromodulation system replacement or revision. Deep brain stimulator (DBS) battery replacements were undertaken in 45 cases, 8 vagal nerve stimulator battery revisions, 2 intrathecal baclofen system revision, 1 DBS extension revision, and 1 DBS scar revision around the cranial portion of the lead. RESULTS: All cases proceeded without adverse event or damage to lead/generator and with a subjective and objective impression of significant time savings. Average operating times for battery replacements were reduced from 37 to 26 minutes (P = 0.015). CONCLUSION: In our experience, the PlasmaBlade is safe to use in revising/replacing neuromodulation implants. We observed no damage or transmission of energy to the implants or leads; additional advantages of the system include reduced operating times, less damage to surrounding tissue, and the potential to facilitate revision procedures in awake patients under local anesthesia. PMID- 29330082 TI - Clinical trials recruitment planning: A proposed framework from the Clinical Trials Transformation Initiative. AB - Patient recruitment is widely recognized as a key determinant of success for clinical trials. Yet a substantial number of trials fail to reach recruitment goals-a situation that has important scientific, financial, ethical, and policy implications. Further, there are important effects on stakeholders who directly contribute to the trial including investigators, sponsors, and study participants. Despite efforts over multiple decades to identify and address barriers, recruitment challenges persist. To advance a more comprehensive approach to trial recruitment, the Clinical Trials Transformation Initiative (CTTI) convened a project team to examine the challenges and to issue actionable, evidence-based recommendations for improving recruitment planning that extend beyond common study-specific strategies. We describe our multi-stakeholder effort to develop a framework that delineates three areas essential to strategic recruitment planning efforts: (1) trial design and protocol development, (2) trial feasibility and site selection, and (3) communication. Our recommendations propose an upstream approach to recruitment planning that has the potential to produce greater impact and reduce downstream barriers. Additionally, we offer tools to help facilitate adoption of the recommendations. We hope that our framework and recommendations will serve as a guide for initial efforts in clinical trial recruitment planning irrespective of disease or intervention focus, provide a common basis for discussions in this area and generate targets for further analysis and continual improvement. PMID- 29330081 TI - Optimization of a technology-supported physical activity intervention for breast cancer survivors: Fit2Thrive study protocol. AB - Fit2Thrive is a theory-guided physical activity promotion trial using the Multiphase Optimization Strategy (MOST) to test efficacy for improving physical activity of five technology-supported physical activity promotion intervention components among breast cancer survivors. This trial will recruit 256 inactive breast cancer survivors nationwide. All participants will receive the core intervention which includes a Fitbit and standard self-monitoring Fit2Thrive smartphone application which will be downloaded to their personal phone. Women will be randomized to one of 32 conditions in a factorial design involving five factors with two levels: support calls (No vs. Yes), app type (standard vs. deluxe), text messaging (No vs. Yes), online gym (No vs. Yes) and Fitbit Buddy (No vs. Yes). The proposed trial examines the effects of the components on physical activity at 12 and 24weeks. Results will support the selection of a final package of intervention components that has been optimized to maximize physical activity and is subject to an upper limit of cost. The optimized intervention will be tested in a future trial. Fit2Thrive is the first trial to use the MOST framework to develop and test a physical activity promotion intervention in breast cancer survivors and will lead to an improved understanding of how to effectively change survivors' physical activity. These findings could result in more scalable, effective physical activity interventions for breast cancer survivors, and, ultimately, improve health and disease outcomes. PMID- 29330083 TI - Rationale and design of the Clinic and Community Approaches to Healthy Weight Randomized Trial. AB - BACKGROUND: Recent studies have demonstrated the effectiveness of family centered, pediatric weight management programs in reducing childhood obesity. Yet, programs to optimize the care of low-income children with obesity are needed. We sought to examine the comparative effectiveness of two, potentially scalable pediatric weight management programs delivered to low-income children in a clinical or community setting. MATERIALS AND METHODS: The Clinic and Community Approaches to Healthy Weight Trial is a randomized trial in two communities in Massachusetts that serve a large population of low-income children and families. The two-arm trial compares the effects of a pediatric weight management program delivered in the Healthy Weight Clinics of two federally qualified health centers (FQHC) to the Healthy Weight and Your Child programs delivered in two YMCAs. Eligible children are 6 to 12 years old with a body mass index (BMI) >= 85th percentile seen in primary care at the two FQHCs. Both programs are one-year in duration and have at least 30 contact hours throughout the year. Measures are collected at baseline, 6 months, and 1 year. The main outcome is 1-year change in BMI (kg/m2) and percent change of the 95th percentile (%BMIp95). CONCLUSION: The Clinic and Community Approaches to Healthy Weight Trial seeks to 1) examine the comparative effects of a clinical and community based intervention in improving childhood obesity, and 2) inform the care of >7 million children with obesity covered by the Children's Health Insurance Program or Medicaid. PMID- 29330084 TI - Real-time reverse transcription recombinase polymerase amplification assay for rapid detection of porcine epidemic diarrhea virus. AB - Porcine epidemic diarrhea (PED), which is caused by porcine epidemic diarrhea virus (PEDV), is an acute, highly contagious enteric disease characterized by severe watery diarrhea, vomiting, dehydration, and high mortality in suckling piglets. A real-time reverse-transcription recombinase polymerase amplification assay (RT-RPA) was developed based on the nucleocapsid gene of PEDV. RT-RPA assay was performed at 40 degrees C for 20 min. The assay could detect both the classical and variant PEDV strains, and there was no cross-reaction with other pathogens tested. Using the in vitro transcribed PEDV RNA as template, the analytical sensitivity was 23 copies per reaction. The assay performance was evaluated by testing 76 clinical samples. PEDV RNA positive rate was 55.3% (42/76) by RT-RPA and 59.2% (45/76) by real-time RT-PCR. The diagnostic agreement between the two assays was 96.1% (73/76), and the R2 value of the two assays was 0.903 by linear regression analysis. The developed RT-RPA assay provides a useful alternative tool for simple, rapid and reliable detection of PEDV in resource limited diagnostic laboratories and on-site facilities. PMID- 29330086 TI - Learning profitable habitat types by juvenile crayfish. AB - Habitat selection is fundamentally important to animal ecology, and animals that can learn about habitats can increase the probability of avoiding detection by predators or quickly finding food. Here, we tested whether juveniles of the red swamp crayfish, Procambarus clarkii, can learn preference for habitat types based on experience with food availability. Crayfish were housed in arenas with two habitat types, half leaf habitat and half rock habitat. Over several days, crayfish were fed consistently in one of the habitat types. Initial tests revealed that crayfish had an innate preference for the leaf habitat, but conditioning over 2-3 weeks was sufficient to shift this preference to the rock habitat based on habitat cues rather than other spatial cues in their environment. The ability to learn the relevance of habitat features may be an important trait for the colonization success, and subsequent impact, of introduced species. PMID- 29330087 TI - Comparing the antipredator behaviour of two sympatric, but not syntopic, Liolaemus lizards. AB - The microhabitat preferences of prey animals can modulate how they perceive predation risk, and therefore, their antipredator behaviour. We tested under standardized conditions how microhabitat preferences of two Liolaemus lizards affected their responses when confronted with two types of ambush predators (raptor vs. snake), under two levels of predation risk (low vs. high). These lizard species are sympatric, but not syntopic; L. chiliensis basks on bushes, a complex microhabitat that may provide protection against visual predators, while L. nitidus prefers open microhabitats, basking on the top of large bare rocks, highly exposed to visual predators. If microhabitat complexity modulates the antipredator response, L. chiliensis may perceive lower predation risk, exhibiting lower intensity of antipredator responses than L. nitidus. Both species reduced their activity after being exposed to both predators, but lizards differed in the assessment of predation risk; L. nitidus reduced its activity independently of the predation risk experienced, while L. chiliensis only reduced its activity in the high-risk condition. The microhabitat preferences shaped during the evolution of these species seem to modulate their perception of predation risk, which may cause interspecific differences in the associated costs of their antipredator responses. PMID- 29330088 TI - The flight of the locus of selection: Some intricate relationships between evolutionary elements. AB - Selection has enriched our understanding of the world since it was first applied to the evolution of species. Selection stands as an alternative to essentialist thinking, as a generalized and multiply applicable concept, and as a causal explanation for current forms within biology and behavior. Attempts to describe selection processes in a generalizable way have provided clarity about their minimal elements, such as replicators and interactors. This paper discusses the interconnectedness among different levels of selection using evidence garnered from evolutionary biology, development, epigenetics, neuroscience, and behavior analysis. Currently, it appears that replicators and interactors may be more fluid than previously supposed and that selection for particular traits may rely on both multiple levels of interaction and multiple levels of replication. Replicators, interactors, and environment share influence on one another, and different replicators may exchange critical control over similar interactor variation as evolution proceeds. Our current understanding of selection continues to undergo revision, and reference to a number of disparate fields can help to account for the complexity of these processes. An understanding of their interconnectedness may help resolve some mysteries that develop in fields that exclusively focus on one or a few, such as the focused study of behavior. PMID- 29330089 TI - Grouping promotes risk-taking in unfamiliar settings. AB - Acting collectively in a group provides risk-reducing benefits. Yet individuals differ in how they take risks, with some being more willing than others to approach dangerous or unfamiliar settings. Therefore, individuals may need to adjust their behaviour when in groups, either as a result of perceiving greater safety or to coordinate collective responses, the latter of which may rely on within-group dynamics biased by group composition. In zebrafish we explored how these aspects of grouping affect risk-taking behaviour by comparing solitary to group conditions and testing the ability of group-member solitary responses to predict collective responses. We focused on approach-latency towards a novel object and an unusual food to test this, for shoals of five fish. There was no indication that collective latencies are predicted by how each fish responded when alone in terms of the extremes, the variance or the mean of group-member latency towards the unusual food and the novel-object. However, fish were overall faster and less variable in their approach when shoaling. This indicates lower risk aversion by individuals in groups, presumably as a result of group safety. An interesting consequence of the overall low risk-aversion in shoals is that more risk-aversive fish adjust their behaviour more than less risk averse fish. PMID- 29330085 TI - Inflammation following acute myocardial infarction: Multiple players, dynamic roles, and novel therapeutic opportunities. AB - Acute myocardial infarction (AMI) and the heart failure that often follows, are major causes of death and disability worldwide. As such, new therapies are required to limit myocardial infarct (MI) size, prevent adverse left ventricular (LV) remodeling, and reduce the onset of heart failure following AMI. The inflammatory response to AMI, plays a critical role in determining MI size, and a persistent pro-inflammatory reaction can contribute to adverse post-MI LV remodeling, making inflammation an important therapeutic target for improving outcomes following AMI. In this article, we provide an overview of the multiple players (and their dynamic roles) involved in the complex inflammatory response to AMI and subsequent LV remodeling, and highlight future opportunities for targeting inflammation as a therapeutic strategy for limiting MI size, preventing adverse LV remodeling, and reducing heart failure in AMI patients. PMID- 29330090 TI - Evaluation of the confusion matrix method in the validation of an automated system for measuring feeding behaviour of cattle. AB - The aim of the present study was to evaluate empirically confusion matrices in device validation. We compared the confusion matrix method to linear regression and error indices in the validation of a device measuring feeding behaviour of dairy cattle. In addition, we studied how to extract additional information on classification errors with confusion probabilities. The data consisted of 12 h behaviour measurements from five dairy cows; feeding and other behaviour were detected simultaneously with a device and from video recordings. The resulting 216 000 pairs of classifications were used to construct confusion matrices and calculate performance measures. In addition, hourly durations of each behaviour were calculated and the accuracy of measurements was evaluated with linear regression and error indices. All three validation methods agreed when the behaviour was detected very accurately or inaccurately. Otherwise, in the intermediate cases, the confusion matrix method and error indices produced relatively concordant results, but the linear regression method often disagreed with them. Our study supports the use of confusion matrix analysis in validation since it is robust to any data distribution and type of relationship, it makes a stringent evaluation of validity, and it offers extra information on the type and sources of errors. PMID- 29330091 TI - CDC42EP4, a perisynaptic scaffold protein in Bergmann glia, is required for glutamatergic tripartite synapse configuration. AB - Configuration of tripartite synapses, comprising the pre-, post-, and peri synaptic components (axon terminal or bouton, dendritic spine, and astroglial terminal process), is a critical determinant of neurotransmitter kinetics and hence synaptic transmission. However, little is known about molecular basis for the regulation of tripartite synapse morphology. Previous studies showed that CDC42EP4, an effector protein of a cell morphogenesis regulator CDC42, is expressed exclusively in Bergmann glia in the cerebellar cortex, that it forms tight complex with the septin heterooligomer, and that it interacts indirectly with the glutamate transporter GLAST and MYH10/nonmuscle myosin IotaIotaB. Scrutiny of Cdc42ep4-/- mice had revealed that the CDC42EP4-septins-GLAST interaction facilitates glutamate clearance, while the role for CDC42EP4-septins MYH10 interaction has remained unsolved. Here, we find anomalous configuration of the tripartite synapses comprising the parallel fiber boutons, dendritic spines of Purkinje cells, and Bergmann glial processes in Cdc42ep4-/- mice. The complex anomalies include 1) recession of Bergmann glial membranes from the nearest active zones, and 2) extension of nonactive synaptic contact around active zone. In line with the recession of Bergmann glial membranes by the loss of CDC42EP4, overexpression of CDC42EP4 in heterologous cells promotes cell spreading and partitioning of MYH10 to insoluble (i.e., active) fraction. Paradoxically, however, Cdc42ep4-/- cerebellum contained significantly more MYH10 and N cadherin, which is attributed to secondary neuronal response mainly in Purkinje cells. Given cooperative actions of N-cadherin and MYH10 for adhesion between neurons, we speculate that their augmentation may reflect the extension of nonactive synaptic contacts in Cdc42ep4-/- cerebellum. Transcellular mechanism that links the absence of CDC42EP4 in Bergmann glia to the augmentation of N cadherin and MYH10 in neurons is currently unknown, but the phenotypic similarity to GLAST-null mice indicates involvement of the glutamate intolerance. Together, the unique phenotype of Cdc42ep4-/- mice provides a clue to novel molecular network underlying tripartite synapse configuration. PMID- 29330092 TI - A novel double-antigen sandwich ELISA for the species-independent detection of Crimean-Congo hemorrhagic fever virus-specific antibodies. AB - Crimean-Congo hemorrhagic fever (CCHF) is a tick-borne disease in humans caused by the CCHF virus (CCHFV). The detection of anti-CCHFV antibodies in animals is used to reveal infection risk areas. Therefore a simple, quick and reliable multispecies assay for the detection of CCHFV-specific antibodies is needed. This work presents the development and validation of a novel CCHF double-antigen ELISA for the detection of anti-CCHFV nucleoprotein antibodies. The test requires 30 MUl of serum, and results are obtained within 90 min. As the ELISA is based on recombinant N-protein of the IbAr10200 virus, it can be run under standard biosafety conditions. For assay validation, sera from 95 cattle and 176 small ruminants from CCHF-endemic regions (origin: Albania, Cameroon, Kosovo, Former Yugoslav Republic of Macedonia, Mauritania, Pakistan, Turkey) served as a positive reference serum panel. The CCHF antibody status of the positive reference samples had been previously confirmed by two serological assays (species-adapted VectorBest ELISA and Euroimmun IFA). CCHFV strains belonging to three different clades are known to circulate in the countries where the positive samples originated. Sera from 402 cattle and 804 small ruminants from Germany and France served as the negative serum panel, as both countries are considered outside of the CCHFV endemic zone. Sera from monkeys, camels, rats, ferrets, raccoon dogs, raccoons, foxes, hares, pigs and humans were also tested, to determine the suitability of this novel ELISA for these species. All negative reference sera were confirmed by the CCHF double-antigen ELISA, indicating a specificity of 100%. 268 of 271 positive reference sera tested positive for CCHFV specific antibodies, 8sensitivity of 99%9. Further analysis are needed to ensure a recognition of the IbAr10200 nucleoprotein by antibodies directed against all known CCHFV clades. This is planned to be realized with sera from other regions covering the three missing clades. PMID- 29330094 TI - P21 activated kinase signaling in cancer. AB - The p21 Activated Kinases (PAKs) are a family of serine threonine kinases, that consist of 6 members, PAKs 1-6, which are positioned at an intersection of multiple signaling pathways implicated in oncogenesis. The PAKs were originally identified as protein kinases that function downstream of the Ras related Rho GTPases Cdc42 and Rac. PAK1 and PAK4, which belong to Group I and Group II PAKs, respectively, are most often associated with tumorigenesis. On account of their well characterized roles in cancer, several small molecule inhibitors are being developed to inhibit the PAKs, and there is interest in investigating their efficacy as either first line or adjuvant treatments for cancer. Studies to delineate PAK regulated signaling pathways as well as the long term effects of PAK overexpression on gene expression are beginning to shed light on the mechanism by which PAK proteins may lead to cancer when they are overexpressed or activated. This review will describe the association between PAK expression in cancer, with a focus on PAK1 and PAK4, which are most often associated with the disease. The current understanding of the molecular mechanisms by which the PAKs operate in cancer will be discussed. We will also review some of the potential drug candidates, and discuss which of them are currently being tested for their efficacy in cancer treatments. PMID- 29330093 TI - Designing improved active peptides for therapeutic approaches against infectious diseases. AB - Infectious diseases are one of the main causes of human morbidity and mortality. In the last few decades, pathogenic microorganisms' resistance to conventional drugs has been increasing, and it is now pinpointed as a major worldwide health concern. The need to search for new therapeutic options, as well as improved treatment outcomes, has therefore increased significantly, with biologically active peptides representing a new alternative. A substantial research effort is being dedicated towards their development, especially due to improved biocompatibility and target selectivity. However, the inherent limitations of peptide drugs are restricting their application. In this review, we summarize the current status of peptide drug development, focusing on antiviral and antimicrobial peptide activities, highlighting the design improvements needed, and those already being used, to overcome the drawbacks of the therapeutic application of biologically active peptides. PMID- 29330095 TI - Crosstalk between Rac1-mediated actin regulation and ROS production. AB - The small RhoGTPase Rac1 is implicated in a variety of events related to actin cytoskeleton rearrangement. Remarkably, another event that is completely different from those related to actin regulation has the same relevance; the Rac1 mediated production of reactive oxygen species (ROS) through NADPH oxidases (NOX). Each outcome involves different Rac1 downstream effectors; on one hand, events related to the actin cytoskeleton require Rac1 to bind to WAVEs proteins and PAKs that ultimately promote actin branching and turnover, on the other, NOX derived ROS production demands active Rac1 to be bound to a cytosolic activator of NOX. How Rac1-mediated signaling ends up promoting actin-related events, NOX derived ROS, or both is poorly understood. Rac1 regulators, including scaffold proteins, are known to exert tight control over its functions. Hence, evidence of Rac1 regulatory events leading to both actin remodeling and NOX-mediated ROS generation are discussed. Moreover, cellular functions linked to physiological and pathological conditions that exhibit crosstalk between Rac1 outcomes are analyzed, while plausible roles in neuronal functions (and dysfunctions) are highlighted. Together, discussed evidence shed light on cellular mechanisms which requires Rac1 to direct either actin- and/or ROS-related events, helping to understand crucial roles of Rac1 dual functionality. PMID- 29330096 TI - Selenoprotein H controls cell cycle progression and proliferation of human colorectal cancer cells. AB - Selenoprotein H (SELENOH) is supposed to be involved in redox regulation as well as in tumorigenesis. However, its role in healthy and transformed cells of the gastrointestinal tract remains elusive. We analyzed SELENOH expression in cells depending on their selenium supply and differentiation status and found that SELENOH expression was increased in tumor tissue, in undifferentiated epithelial cells from mice and in colorectal cancer lines as compared to more differentiated ones. Knockdown studies in human colorectal cancer cells revealed that repression of SELENOH decreased cellular differentiation and increased proliferation and migration. In addition, SELENOH knockdown cells have a higher competence to form colonies or tumor xenografts. In parallel, they show a faster cell cycle transition. The high levels of SELENOH in tumors as well as in undifferentiated, proliferative cells together with its inhibitory effects on proliferation and G1/S phase transition suggest SELENOH as a key regulator for cell cycle progression and for prevention of uncontrolled proliferation. As SELENOH expression is highly dependent on the selenium status, effects of selenium supplementation on cancer initiation and progression appear to involve SELENOH. PMID- 29330098 TI - Missed Opportunities in Colorectal Cancer Prevention in Patients With Inadequate Bowel Preparations. PMID- 29330099 TI - Confusion for Fifteen Years: A Case of Abernethy Malformation. PMID- 29330097 TI - Learning situated emotions. AB - From the perspective of constructivist theories, emotion results from learning assemblies of relevant perceptual, cognitive, interoceptive, and motor processes in specific situations. Across emotional experiences over time, learned assemblies of processes accumulate in memory that later underlie emotional experiences in similar situations. A neuroimaging experiment guided participants to experience (and thus learn) situated forms of emotion, and then assessed whether participants tended to experience situated forms of the emotion later. During the initial learning phase, some participants immersed themselves in vividly imagined fear and anger experiences involving physical harm, whereas other participants immersed themselves in vividly imagined fear and anger experiences involving negative social evaluation. In the subsequent testing phase, both learning groups experienced fear and anger while their neural activity was assessed with functional magnetic resonance imaging (fMRI). A variety of results indicated that the physical and social learning groups incidentally learned different situated forms of a given emotion. Consistent with constructivist theories, these findings suggest that learning plays a central role in emotion, with emotion adapted to the situations in which it is experienced. PMID- 29330100 TI - Osteoarthritis year in review 2017: updates on imaging advancements. AB - OBJECTIVE: This narrative review covers original research publications related to imaging advancements in osteoarthritis (OA) published in the English language between 1st April 2016 and 30th April 2017. METHODS: Relevant human studies (excluding pre-clinical and in vitro studies), were searched and selected from PubMed database using the search terms of "osteoarthritis (OA)" in combination with "radiography", "magnetic resonance imaging (MRI)", "computed tomography (CT)", "ultrasound", "positron emission tomography (PET)," "single-photon emission computed tomography (SPECT)," and "scintigraphy". The included studies were sorted according to their relevance, novelty, and impact. Original research articles with both imaging advancements and novel clinical information were discussed in this review. RESULTS: A large portion of the published studies were focused on MRI-based semi-quantitative and quantitative (morphological and structural) metrics of the knee joint to assess OA-related structural damages. New imaging technologies, such as PET, have been investigated for OA diagnosis and characterization, the delineation of predictive factors for OA progression, and to monitor the treatment responses. CONCLUSION: Advanced imaging modalities play a pivotal role in OA research, and make a significant contribution to our understanding of OA diagnosis, pathogenesis, risk stratification, and prognosis. PMID- 29330101 TI - Telephone-based weight loss support for patients with knee osteoarthritis: a pragmatic randomised controlled trial. AB - OBJECTIVE: To determine the effectiveness of telephone-based weight loss support in reducing the intensity of knee pain in patients with knee osteoarthritis, who are overweight or obese, compared to usual care. DESIGN: We conducted a parallel randomised controlled trial (RCT), embedded within a cohort multiple RCT of patients on a waiting list for outpatient orthopaedic consultation at a tertiary referral hospital in NSW, Australia. Patients with knee osteoarthritis, classified as overweight or obese [body mass index (BMI) between >=27 kg/m2 and <40 kg/m2] were randomly allocated to receive referral to an existing non-disease specific government funded 6-month telephone-based weight management and healthy lifestyle service or usual care. The primary outcome was knee pain intensity measured using an 11-point numerical rating scale (NRS) over 6-month follow-up. A number of secondary outcomes, including self-reported weight were measured. Data analysis was by intention-to-treat according to a pre-published analysis plan. RESULTS: Between May 19 and June 30 2015, 120 patients were randomly assigned to the intervention (59 analysed, one post-randomisation exclusion) or usual care (60 analysed). We found no statistically significant between group differences in pain intensity [area under the curve (AUC), mean difference 5.4, 95%CI: -13.7 to 24.5, P = 0.58] or weight change at 6 months (self-reported; mean difference 0.4, 95%CI: -2.6 to 1.8, P = 0.74). CONCLUSIONS: Among patients with knee osteoarthritis who are overweight, telephone-based weight loss support, provided using an existing 6-month weight management and healthy lifestyle service did not reduce knee pain intensity or weight, compared with usual care. TRIAL REGISTRATION NUMBER: ACTRN12615000490572. PMID- 29330102 TI - Bisphosphonates intake and its association with changes of periarticular bone area and three-dimensional shape: data from the Osteoarthritis Initiative (OAI). AB - OBJECTIVE: To determine the association between bisphosphonate treatment with the change of periarticular bone area and three-dimensional (3D) shape in participants of the Osteoarthritis Initiative (OAI) study. DESIGN: Using propensity score (PS) matching method in females, 48 bisphosphonate users and 105 non-users, who were matched for osteoarthritis (OA) and osteoporosis (OP) related factors were included. Baseline and 24-month magnetic resonance imaging (MRI) based periarticular bone area and 3D shape measurements were used. The association between bisphosphonate intake and 24-month interval changes of the periarticular bone area and 3D shape were evaluated using paired Wilcoxon signed rank test. We used conditional logistic regression models for determining the association between bisphosphonate intake and periarticular bone change, defined using the standard deviation of difference (SDD) and reliable change index (RCI) methods. P-values have been adjusted for multiple comparisons using Benjamini & Hochberg procedure and false discovery rate (FDR)-adjusted P-values were reported. RESULTS: The 24-month interval increases in the periarticular bone area in medial side of tibia were significantly greater in non-users than users (FDR adjusted P-value: 0.002). There was an approaching significance trend for lower medial tibial periarticular bone area expansion in bisphosphonate users in comparison with non-users (For 1SDD change, odds ratio 95% confidence interval (OR (95% CI)): 0.514 (0.271-0.975), FDR-adjusted P-value: 0.085) (For 1.96RCI change, OR (95% CI): 0.552 (0.309-0.986), FDR-adjusted P-value: 0.085). CONCLUSIONS: Bisphosphonate intake was associated with a reduction in the odds (approaching but not achieving significance) of expansion periarticular bone area, specifically in the medial tibial sub-region. PMID- 29330103 TI - Osteoarthritis year in review 2017: rehabilitation and outcomes. AB - OBJECTIVE: The purpose of this systematic review was to describe studies examining rehabilitation for people with osteoarthritis (OA) and to summarize findings from selected key systematic reviews (SRs) and randomized controlled trials (RCTs). DESIGN: A systematic search was performed using Pubmed, Embase and Cochrane databases from April 1st 2016 to May 15th 2017 using the terms 'osteoarthritis', 'randomized controlled trial', and 'systematic review'. Inclusion criteria were: clinically or radiologically diagnosed patients with OA, rehabilitation treatment, RCT or SRs. A selection of the included studies is discussed based on study quality and perceived importance to the field; including those that are innovative, inform the direction of the field or generate controversy. Methodological quality of the included studies was assessed using the PEDro-scale for RCTs and the Amstar guideline for SRs. RESULTS: From 1211 articles, 80 articles met the eligibility criteria including 21 SRs and 61 RCTs. The median of the methodological quality of the SRs and RCTs was 7 (2-9) and 6 (3 10), respectively. The studies were grouped into several themes, covering the most important rehabilitation fields. CONCLUSIONS: Striking is the small number of studies investigating another joint (18%) than the knee (82%). Exercise is the most common treatment evaluated and should be accompanied with education to effectuate a behavioural change in physical activity of people with OA. No new insights in the field of braces (or orthoses) and in the field of acupuncture were found. PMID- 29330104 TI - Circular RNA: An emerging non-coding RNA as a regulator and biomarker in cancer. AB - Circular RNA (circRNA) is a type of covalently closed non-coding RNA that may regulate gene expression in eukaryotes. The recent application of high-throughput RNA sequencing and bioinformatics approaches has revealed a large number of circRNAs in human cells. Emerging evidence indicates that many circRNAs have cell type specific expression and are linked to physiological development and various diseases. Specially, circRNAs can either serve as oncogenic stimuli or tumor suppressors in cancer. circRNAs have also been shown to be enriched and stable in extracellular fluid, indicating the potential of circRNAs as cancer biomarkers. Here, we summarize the current knowledge of circRNAs, including their classification, biogenesis, properties, and databases, as well as their function and clinical implications in cancer. PMID- 29330105 TI - Redox regulation of microRNAs in cancer. AB - Dysregulation of microRNAs (miRNAs) has long been implicated in tumorigenesis, whereas the underlying mechanisms remain largely unknown. Oxidative stress is a hallmark of cancer that involved in multiple pathophysiological processes, including the aberrant regulation of miRNAs. Compelling evidences have implied complicated interplay between reactive oxygen species (ROS) and miRNAs. Indeed, ROS induces carcinogenesis through either reducing or increasing the miRNA level, leading to the activation of oncogenes or silence of tumor suppressors, respectively. In turn, miRNAs target ROS productive genes or antioxidant responsive elements to affect cellular redox balance, which contributes to establishing a microenvironment favoring cancer cell growth and metastasis. Both miRNAs and ROS have been identified as potential biomarkers and therapeutic targets in human malignancies, and comprehensive understanding of the molecular events herein will facilitate the development of novel cancer therapeutic strategies. PMID- 29330106 TI - Featuring the special issue Guest Editor. PMID- 29330107 TI - Prostate cancer-associated lncRNAs. AB - Long non-coding RNA (LncRNA) is defined as an RNA transcript that does not encode any protein, with a length longer than 200 nt. Based on the recent advances in high-throughput sequencing techniques, a large number of lncRNAs have been characterized as functional transcripts that play important roles in various biological processes as well as pathologic states. In a research field of prostate cancer, several key lncRNAs have been identified as new players that contribute to the pathophysiology of the disease, which is primarily regulated by androgen and its cognate receptor. This review sheds light on the history and future perspective of these prostate cancer-associated lncRNAs. PMID- 29330108 TI - Membrane-lipid associated lncRNA: A new regulator in cancer signaling. AB - Long noncoding RNAs (LncRNAs) are one of the emerging regulators which are involved in diverse biological processes. LncRNAs can participate in the regulation of gene expression via various ways in the cytoplasm and the nucleus. The function of the nuclear lncRNAs has been studied a lot. Recent studies have shown that the regulatory roles of cytoplasmic lncRNA, including membrane lipid associated lncRNA, which may open an unexplored mechanistic territory. LncRNA dysregulated expression represents a common event in pathogenesis of a variety of human genetic diseases including cancer. Lipid-associated lncRNA is capable of modulating critical cellular functions by directly interacting with phospholipids on the plasma membrane. Besides, it also could be a predictor for the poor prognosis of cancer. In this review, we sum up the roles of cytoplasmic lncRNA, especially lipid-associated lncRNA in cancer. PMID- 29330109 TI - Friend or Foe: MicroRNAs in the p53 network. AB - The critical tumor suppressor gene TP53 is either lost or mutated in more than half of human cancers. As an important transcriptional regulator, p53 modulates the expression of many microRNAs. While wild-type p53 uses microRNAs to suppress cancer development, microRNAs that are activated by gain-of-function mutant p53 confer oncogenic properties. On the other hand, the expression of p53 is tightly controlled by a fine-tune machinery including microRNAs. MicroRNAs can target the TP53 gene directly or other factors in the p53 network so that expression and function of either the wild-type or the mutant forms of p53 is downregulated. Therefore, depending on the wild-type or mutant p53 context, microRNAs contribute substantially to suppress or exacerbate tumor development. PMID- 29330110 TI - Epigenetics and pathogenesis of systemic sclerosis; the ins and outs. AB - The pathogenesis of many diseases is influenced by environmental factors which can affect human genome and be inherited from generation to generation. Adverse environmental stimuli are recognized through the epigenetic regulatory complex, leading to gene expression alteration, which in turn culminates in disease outcomes. Three epigenetic regulatory mechanisms modulate the manifestation of a gene, namely DNA methylation, histone changes, and microRNAs. Both epigenetics and genetics have been implicated in the pathogenesis of systemic sclerosis (SSc) disease. Genetic inheritance rate of SSc is low and the concordance rate in both monozygotic (MZ) and dizygotic (DZ) twins is little, implying other possible pathways in SSc pathogenesis scenario. Here, we provide an extensive overview of the studies regarding different epigenetic events which may offer insights into the pathology of SSc. Furthermore, epigenetic-based interventions to treat SSc patients were discussed. PMID- 29330111 TI - Soluble Major Histocompatibility Complex Class I related Chain A (sMICA) levels influence graft outcome following Renal Transplantation. AB - BACKGROUND: Since soluble isoforms of MICA play an important role in modulating the immune response, we evaluated a possible correlation between their levels and development of acute rejection following renal transplantation. METHODS: Serum samples collected at pre- and different time points post-transplant from 137 live related donor renal transplant recipients were evaluated retrospectively for sMICA levels and for the presence of MICA antibodies. Samples from 30 healthy volunteers were also tested as controls. RESULTS: Significantly higher levels of sMICA were observed in the pretransplant sera of allograft recipients as compared to healthy controls. Patients with acute cellular rejection experienced a significant fall in their levels at the time of diagnosis as compared to their pretransplant values and posttransplant follow up time points (p = .01, .003, .005 and .04 respectively at pre vs biopsy (Bx), POD7 vs Bx, POD 30 vs Bx, POD 90 vs Bx). However, no such difference was noted in patients undergoing antibody mediated rejection. Further the study did not reveal any correlation on the presence/absence of MICA antibodies with either an increase or decrease in sMICA levels. CONCLUSIONS: Estimating circulating levels of soluble MICA could provide useful information of prognostic importance in assessing graft outcome following renal transplantation. PMID- 29330113 TI - Runt-related transcription factor 1 (RUNX1) deficiency attenuates inflammation induced pro-inflammatory and pro-labour mediators in myometrium. AB - Identifying new targets that regulate myometrial activation are required to develop effective treatments to stop preterm labor. Inflammation, which can be induced by sterile or infective insults, plays a role in initiating and maintaining uterine contractions. Several high throughput transcription screening studies have identified an upregulation of runt-related transcription factor 1 (RUNX1) mRNA expression in myometrium with labor. The role of RUNX1 in labor, however, is not known. We report increased RUNX1 during late gestation which was further augmented in labor, suggesting that RUNX1 may be involved in the transition of the myometrium from a quiescent into a contractile state in preparation for labor. By inhibiting the expression of RUNX1, we have established that RUNX1 induces the expression of pro-inflammatory cytokines, chemokines, adhesion molecules, contraction-associated proteins OXR and PTGFR, the uterotonic PGF2alpha, and the ECM remodelling enzyme MMP9. Targeting RUNX1 may be a novel approach to prevent preterm labor. PMID- 29330112 TI - Macrochimerism and clinical transplant tolerance. AB - Current theory holds that macrochimerism is essential to the development of transplant tolerance. Hematopoietic cell transplantation from the solid organ donor is necessary to achieve macrochimerism. Over the last 10-20 years, trials of tolerance induction with combined kidney and hematopoietic cell transplantation have moved from the preclinical to the clinical arena. The achievement of macrochimerism in the clinical setting is challenging, and potentially toxic due to the conditioning regimen necessary to hematopoietic cell transplantation and due to the risk of graft-versus-host disease. There are differences in chimerism goals and methods of the three major clinical stage tolerance induction strategies in both HLA-matched and HLA-mismatched living donor kidney transplantation, with consequent differences in efficacy and safety. The Stanford protocol has proven efficacious in the induction of tolerance in HLA matched kidney transplantation, allowing cessation of immunosuppressive drug therapy in 80% of study participants, with the safety profile of conventional transplantation. In HLA-mismatched transplantation, multi-lineage macrochimerism of over a year's duration can now be consistently achieved with the Stanford protocol, with complete withdrawal of immunosuppressive drug therapy during the second post-transplant year as the next experimental step and test of tolerance. PMID- 29330114 TI - Human CD4+ CD25+ CD127hi cells and the Th1/Th2 phenotype. AB - CD4+ T cells that co-express CD25 and CD127 (CD25+CD127+) make up around 20% of all circulating CD4+ memory T cells in healthy people. The clinical significance of these cells is that in children with type 1 diabetes their relative frequency at diagnosis is significantly and directly correlated with rate of disease progression. The purpose of this study was to further characterize the CD25+CD127hi cells. We show that they are a mix of Th1 and Th2 cells however, they have a significantly higher relative frequency of pre-committed and committed Th2 cells, and secrete significantly higher levels of Th2-type cytokines than CD25- memory T cells. Further, these cells are neither exhausted nor senescent and proliferate to the same extent as CD25- memory cells. Thus, CD25+CD127hi cells are a highly active subset of memory T cells that might play a role in controlling inflammation via anti-inflammatory Th2-type deviation. PMID- 29330115 TI - Pediatric-onset Evans syndrome: Heterogeneous presentation and high frequency of monogenic disorders including LRBA and CTLA4 mutations. AB - Evans syndrome (ES) is defined by the combination of autoimmune hemolytic anemia and immune thrombocytopenia. Clinical presentation includes manifestations of immune dysregulation, found in primary immune deficiencies, autoimmune lymphoproliferative syndrome with FAS (ALPS-FAS), Cytotoxic T Lymphocyte Antigen 4 (CTLA-4) and Lipopolysaccharide-Responsive vesicle trafficking Beige-like and Anchor protein (LRBA) defects. We report the clinical history and genetic results of 18 children with ES after excluding ALPS-FAS. Thirteen had organomegaly, five lymphocytic infiltration of non-lymphoid organs, nine hypogammaglobulinemia and fifteen anomalies in lymphocyte phenotyping. Seven patients had genetic defects: three CTLA4 mutations (c.151C>T; c.109+1092_568-512del; c.110-2A>G) identified by Sanger sequencing and four revealed by Next Generation Sequencing: LRBA (c.2450+1C>T), STAT3 gain-of-function (c.2147C>T; c.2144C>T) and KRAS (c.37G>T). No feature emerged to distinguish patients with or without genetic diagnosis. Our data on pediatric-onset ES should prompt physicians to perform extensive screening for mutations in the growing pool of genes involved in primary immune deficiencies with autoimmunity. PMID- 29330116 TI - TNF-alpha increases Staphylococcus aureus-induced death of human alveolar epithelial cell line A549 associated with RIP3-mediated necroptosis. AB - AIM: To explore the role of tumor necrosis factor-alpha (TNF-alpha) on Staphylococcus aureus-induced necroptosis in alveolar epithelial cells. MAIN METHODS: The A549 alveolar epithelial cell line was pretreated with small interfering RNA (siRNA) against receptor interacting protein-3 (RIP3) and then stimulated by S. aureus, where some cells were pretreated with TNF-alpha or TNF alpha with anti-TNF-alpha antibody simultaneously. A549 cell death was assessed using lactate dehydrogenase (LDH) leakage and flow cytometry analyses. The protein expressions of RIP1, RIP3, cleaved caspase-1, and cleaved caspase-8 were analyzed by western blot. KEY FINDINGS: S. aureus-induced LDH release was increased significantly by TNF-alpha. In addition, flow cytometry showed that TNF alpha increased A549 cell apoptosis and necrosis in S. aureus-infected cell cultures. Levels of RIP3 and cleaved caspase-1 protein in A549 cells infected with S. aureus increased at 12 h post-infection, as shown by western blot. Significant additional increases in RIP3 expression were observed following the addition of TNF-alpha. Decreasing RIP3 levels by siRNA significantly suppressed the release of LDH induced by TNF-alpha and S. aureus. RIP3 siRNA also significantly suppressed A549 cell necrosis induced by S. aureus and TNF-alpha at 6 and 12 h post-infection as shown by flow cytometry analysis. SIGNIFICANCE: TNF alpha enhances the damage of S. aureus on lung epithelial cells, and its mechanism is associated with RIP3 mediated necroptosis. PMID- 29330118 TI - Using the Ribodeblur pipeline to recover A-sites from yeast ribosome profiling data. AB - Ribosome profiling has emerged as a powerful technique to study mRNA translation. Ribosome profiling has the potential to determine the relative quantities and locations of ribosomes on mRNA genome wide. Taking full advantage of this approach requires accurate measurement of ribosome locations. However, experimental inconsistencies often obscure the positional information encoded in ribosome profiling data. Here, we describe the Ribodeblur pipeline, a computational analysis tool that uses a maximum likelihood framework to infer ribosome positions from heterogeneous datasets. Ribodeblur is simple to install, and can be run on an average modern Mac or Linux-based laptop. We detail the process of applying the pipeline to high-coverage ribosome profiling data in yeast, and discuss important considerations for potential extension to other organisms. PMID- 29330117 TI - RIFM fragrance ingredient safety assessment phenethyl isovalerate, CAS Registry Number 140-26-1. PMID- 29330119 TI - Temporal changes of the bacterial community colonizing wheat straw in the cow rumen. AB - This study used Miseq pyrosequencing and scanning electron microscopy to investigate the temporal changes in the bacterial community tightly attached to wheat straw in the cow rumen. The wheat straw was incubated in the rumens and samples were recovered at various times. The wheat straw degradation exhibited three phases: the first degradation phase occurred within 0.5 h, and the second degradation phase occurred after 6 h, with a stalling phase occurring between 0.5 and 6 h. Scanning electron microscopy revealed the colonization of the microorganisms on the wheat straw over time. The bacterial communities at 0.5, 6, 24, and 72 h were determined, corresponding to the degradation phases. Firmicutes and Bacteroidetes were the two most dominant phyla in the bacterial communities at the four time points. Principal coordinate analysis (PCoA) showed that the bacterial communities at the four time points were distinct from each other. The wheat straw-associated bacteria stabilized at the phylum level after 0.5 h of rumen incubation, and only modest phylum-level and family-level changes were observed for most taxa between 0.5 h and 72 h. The relative abundance of the dominant genera, Butyrivibrio, Coprococcus, Ruminococcus, Succiniclasticum, Clostridium, Prevotella, YRC22, CF231, and Treponema, changed significantly over time (P < .05). However, at the genus level, unclassified taxa accounted for 70.3% +/- 6.1% of the relative abundance, indicating their probable importance in the degradation of wheat straw as well as in the temporal changes of the bacterial community. Thus, understanding the function of these unclassified taxa is of great importance for targeted improvement of forage use efficiency in ruminants. Collectively, our results revealed distinct degradation phases of wheat straw and corresponding changes in the colonized bacterial community. PMID- 29330120 TI - An update on the role of nanovehicles in nose-to-brain drug delivery. AB - A quantitative analysis has cast doubt over the limited advantages provided by particles for nose-to-brain (NTB) drug delivery. Thus, it is imperative to identify the role of nanovehicles in NTB drug delivery. If nanocarriers are used merely as an option to improve various properties of the drugs or the formulations, it is difficult for them to outperform conventional formulations, such as solutions or gels. However, nanovehicles bring about special features, such as maintenance of the solubilized state of drugs, sustained or delayed release, and enhanced penetration because of surface modifications, all of which lead to enhanced NTB delivery efficiency. PMID- 29330121 TI - Using network-based expert engagement to advance pharmaceutical research and development. PMID- 29330122 TI - Privileged portal metastasis of hepatocellular carcinoma in light of the coevolution of a visceral portal system and liver in the chordate lineage: a search for therapeutic targets. AB - Hepatocellular carcinoma (HCC) disseminates systemically, but metastases occur in distant organs only in minority of patients, whereas HCC routinely metastasizes to liver and its vessels. HCC cells disseminate via hepatic veins, but portal veins are affected by metastasis more frequently than are hepatic veins, and correlates with poor prognosis. In this review, I suggest that privileged HCC portal metastasis occurs because of high levels of pancreatic family hormones and growth factors (PHGFs) in the portal blood. The analysis suggests that the appearance of the portal system carrying PHGFs in the evolution of invertebrate chordate (Amphioxus) led to the evolution of the liver in vertebrate; given that the portal pattern of HCC metastasis and selection of more-aggressive clones are PHGF dependent, PHGFs and their ligands constitute therapeutic targets. PMID- 29330124 TI - Manipulating the epigenome for the treatment of disorders with thrombotic complications. AB - The haemostatic system is tightly regulated to maintain homeostasis to avoid unwanted bleeding or thrombotic complications. Recent research has highlighted the importance of epigenetic changes, such as DNA methylation, histone modifications, and miRNA-based mechanisms, that alter gene expression. This can give rise to dysregulated haemostatic or vascular expressed molecules contributing to the development of thrombotic complications. Targeting these epigenetic changes could provide a new avenue for the treatment of pathological blood clots. However, the lack of tissue specificity warrants high-resolution genomic studies of the transcriptome and methylome that will reveal explicit epigenetic targets for the design of superior drugs with minimum off-target effects. PMID- 29330125 TI - The hitchhiker's guide to the chemical-biological galaxy. AB - We are used to considering chemical and biological spaces as two different entities; although they represent a more-interconnected world, in fact they represent a Yin-Yang concept in drug discovery. Chemical-biological space is as vast as the universe and, as Douglas Adams famously said, 'Space is big. You just won't believe how vastly, hugely, mind-bogglingly big it is'. However, many researchers are convinced that it is not so infinite, and are designing computational and experimental tools to help identify and explore all possible chemical-biological space. Here, we provide an analysis of their approaches and discuss possible future research studies. PMID- 29330123 TI - A bibliometric review of drug repurposing. AB - We have conducted a bibliometric review of drug repurposing by scanning >25 million papers in PubMed and using text-mining methods to gather, count and analyze chemical-disease therapeutic relationships. We find that >60% of the ~35,000 drugs or drug candidates identified in our study have been tried in more than one disease, including 189 drugs that have been tried in >300 diseases each. Whereas in the majority of cases these drugs were applied in therapeutic areas close to their original use, there have been striking, and perhaps instructive, successful attempts of drug repurposing for unexpected, novel therapeutic areas. PMID- 29330126 TI - Recent progress in the discovery of myeloid differentiation 2 (MD2) modulators for inflammatory diseases. AB - Myeloid differentiation protein 2 (MD2), together with Toll-like receptor 4 (TLR4), binds lipopolysaccharide (LPS) with high affinity, inducing the formation of the activated homodimer LPS-MD2-TLR4. MD2 directly recognizes the Lipid A domain of LPS, leading to the activation of downstream signaling of cytokine and chemokine production, and initiation of inflammatory and immune responses. However, excessive activation and potent host responses generate severe inflammatory syndromes such as acute sepsis and septic shock. MD2 is increasingly being considered as an attractive pharmacological target for the development of potent anti-inflammatory agents. In this Keynote review, we provide a comprehensive overview of the recent advances in the structure and biology of MD2, and present MD2 modulators as promising agents for anti-inflammatory intervention. PMID- 29330127 TI - Present drug-likeness filters in medicinal chemistry during the hit and lead optimization process: how far can they be simplified? AB - During the past decade, decreasing the attrition rate of drug development candidates reaching the market has become one of the major challenges in pharmaceutical research and drug development (R&D). To facilitate the decision making process, and to increase the probability of rapidly finding and developing high-quality compounds, a variety of multiparametric guidelines, also known as rules and ligand efficiency (LE) metrics, have been developed. However, what are the 'best' descriptors and how far can we simplify these drug-likeness prediction tools in terms of the numerous, complex properties that they relate to? PMID- 29330128 TI - Exploiting ion channel structure to assess rare variant pathogenicity. AB - BACKGROUND: A 27-year-old woman was seen for long QT syndrome. She was found to be a carrier of 2 variants, KCNQ1 Val162Met and KCNH2 Ser55Leu, and both were classified as "pathogenic" by a diagnostic laboratory, in part because of sequence proximity to other known pathogenic variants. OBJECTIVE: The purpose of this study was to assess the relationship between both the KCNQ1 and KCNH2 variants and clinical significance using protein structure, in vitro functional assays, and familial segregation. METHODS: We used co-segregation analysis of family, patch clamp in vitro electrophysiology, and structural analysis using recently released cryo-electron microscopy structures of both channels. RESULTS: The structural analysis indicates that KCNQ1 Val162Met is oriented away from functionally important regions while Ser55Leu is positioned at domains critical for KCNH2 fast inactivation. Clinical phenotyping and electrophysiology study further support the conclusion that KCNH2 Ser55Leu is correctly classified as pathogenic but KCNQ1 Val162Met is benign. CONCLUSION: Proximity in sequence space does not always translate accurately to proximity in 3-dimensional space. Emerging structural methods will add value to pathogenicity prediction. PMID- 29330129 TI - Estradiol up-regulates L-type Ca2+ channels via membrane-bound estrogen receptor/phosphoinositide-3-kinase/Akt/cAMP response element-binding protein signaling pathway. AB - BACKGROUND: In long QT syndrome type 2, women are more prone than men to the lethal arrhythmia torsades de pointes. We previously reported that 17beta estradiol (E2) up-regulates L-type Ca2+ channels and current (ICa,L) (~30%) in rabbit ventricular myocytes by a classic genomic mechanism mediated by estrogen receptor-alpha (ERalpha). In long QT syndrome type 2 (IKr blockade or bradycardia), the higher Ca2+ influx via ICa,L causes Ca2+ overload, spontaneous sarcoplasmic reticulum Ca2+ release, and reactivation of ICa,L that triggers early afterdepolarizations and torsades de pointes. OBJECTIVE: The purpose of this study was to investigate the molecular mechanisms whereby E2 up-regulates ICa,L, which are poorly understood. METHODS: H9C2 and rat myocytes were incubated with E2 +/- ER antagonist, or inhibitors of downstream transcription factors, for 24 hours, followed by western blots of Cav1.2alpha1C and voltage-clamp measurements of ICa,L. RESULTS: Incubation of H9C2 cells with E2 (10-100 nM) increased ICa,L density and Cav1.2alpha1C expression, which were suppressed by the ER antagonist ICI182,780 (1 MUM). Enhanced ICa,L and Cav1.2alpha1C expression by E2 was suppressed by inhibitors of phosphoinositide-3-kinase (Pi3K) (30 MUM LY294002; P <.05) and Akt (5 MUM MK2206) but not of mitogen-activated protein kinase (5 MUM U0126) or protein kinase A (1 MUM KT5720). E2 incubation increased p-CREB via the Pi3K/Akt pathway, reached a peak in 20 minutes (3-fold), and leveled off to 1.5-fold 24 hours later. Furthermore, a CREB decoy oligonucleotide inhibited E2-induced Cav1.2alpha1C expression, whereas membrane-impermeable E2 (E2-bovine serum albumin) was equally effective at Cav1.2alpha1C up-regulation as E2. CONCLUSION: Estradiol up-regulates Cav1.2alpha1C and ICa,L via plasma membrane ER and by activating Pi3K, Akt, and CREB signaling. The promoter regions of the CACNA1C gene (human-rabbit-rat) contain adjacent/overlapping binding sites for p-CREB and ERalpha, which suggests a synergistic regulation by these pathways. PMID- 29330130 TI - Perioperative electrophysiology study in patients with tetralogy of Fallot undergoing pulmonary valve replacement will identify those at high risk of subsequent ventricular tachycardia. AB - BACKGROUND: Ventricular tachyarrhythmias are the most common cause of death in patients with repaired tetralogy of Fallot (TOF), but predicting those at risk remains a challenge. An electrophysiology study (EPS) has been proposed to risk stratify patients with TOF. OBJECTIVE: We sought to evaluate a perioperative EPS guided approach to risk stratify patients with TOF undergoing pulmonary valve replacement (PVR) and guide concomitant cryoablation. METHODS: A prospective cohort study of patients with TOF undergoing an EPS at the time of PVR from 2006 to 2017 was conducted at 2 centers. Patients inducible at the time of pre-PVR had undergone concomitant cryoablation in addition to PVR. A repeat post-PVR EPS was performed in those initially inducible to guide implantable cardioverter defibrillator (ICD) implantation. RESULTS: Of 70 patients who underwent a pre-PVR EPS, 34 (49%) had inducible sustained ventricular tachycardia (VT): 25 monomorphic VT and 9 polymorphic VT. Among patients undergoing cryoablation, 14 (45%) had inducible VT and underwent ICD implantation. During a mean follow-up period of 6.1 +/- 3.2 years, 3 patients (21%) had appropriate ICD shocks for symptomatic VT. There was an average of 2.3 shocks (range 1-4 shocks), and the mean time to first shock post-device implantation was 3.6 years (range 2.9-4.3 years). Among patients with negative pre- or post-PVR EPS results, 2 had VT requiring radiofrequency ablation and/or subsequent ICD implantation. There were no arrhythmic deaths. CONCLUSION: A pre-PVR EPS identified patients with higher risk TOF undergoing PVR. Despite empirical VT cryoablation at the time of PVR, a high percentage of patients remained inducible for VT. In this high-risk cohort, post-PVR EPS evaluation is important to identify patients at risk of VT despite cryoablation. PMID- 29330131 TI - Response of human induced pluripotent stem cell-derived cardiomyocytes to several pharmacological agents when intrinsic syncytial pacing is overcome by acute external stimulation. AB - We challenged human induced pluripotent stem cell-derived cardiomyocyte (hiPSC CM) syncytia, mainly, CDI iCells with several classes of well-characterized pharmacological agents (including hERG blocker, Nav1.5 blocker, Cav1.2 blocker and opener, beta-adrenergic agonist, and If blocker) under pacing conditions, utilizing the Cardio-ECR instrument, a non-invasive platform featuring simultaneous and continuous measurement of synchronized beating rate and contractility (both signals were acquired simultaneously and well aligned). We found that: 1) with increasing acute stimulation rates (no pacing; 1, 1.5, and 2Hz), beat interval was gradually shortened mainly in the relaxation phase of each beat cycle; 2) typical responses of iCells hiPSC-CMs to all tested pharmacological agents were either attenuated or even eliminated by pacing, in a concentration- and stimulation rate-dependent manner; and 3) when iCells were influenced by pharmacological agents and cannot follow pacing rates, they still beat regularly at exactly 1/2 or 1/3 of pacing rates. We concluded that when intrinsic syncytial pacing was overcome by faster, external stimulations, beat intervals of hiPSC-CMs were mainly shortened in the relaxation phase, instead of proportionally in each beat cycle, with increasing pacing rates. In addition, in response to pharmacological agents upon pacing, hiPSC-CMs exhibited distinct patterns of refractoriness, manifested by skipped beats in pacing-rate dependent manner, and attenuation (or even abolition) of the typical response evoked under spontaneous beating. PMID- 29330132 TI - An overview of the safety pharmacology society strategic plan. AB - Safety Pharmacology studies are conducted to characterize the confidence by which biologically active new chemical entities (NCE) may be anticipated as safe. Non clinical safety pharmacology studies aim to detect and characterize potentially undesirable pharmacodynamic activities using an array of in silico, in vitro and in vivo animal models. While a broad spectrum of methodological innovation and advancement of the science occurs within the Safety Pharmacology Society, the society also focuses on partnerships with health authorities and technology providers and facilitates interaction with organizations of common interest such as pharmacology, physiology, neuroscience, cardiology and toxicology. Education remains a primary emphasis for the society through content derived from regional and annual meetings, webinars and publication of its works it seeks to inform the general scientific and regulatory community. In considering the future of safety pharmacology the society has developed a strategy to successfully navigate forward and not be mired in stagnation of the discipline. Strategy can be defined in numerous ways but generally involves establishing and setting goals, determining what actions are needed to achieve those goals, and mobilizing resources within the society to accomplish the actions. The discipline remains in rapid evolution and its coverage is certain to expand to provide better guidance for more systems in the next few years. This overview from the Safety Pharmacology Society will outline the strategic plan from 2016 to 2018 and beyond and provide insight into the future of the discipline which builds upon a previous strategic plan established in 2009. PMID- 29330133 TI - The evaluation of drug-induced changes in left ventricular function in pentobarbital-anesthetized dogs. AB - INTRODUCTION: The goal of this study was to determine whether assessment of myocardial contractility and hemodynamics in an anesthetized dog model, could consistently detect drug-induced changes in the inotropic state of the heart using drugs known to have clinically relevant positive and negative effects on myocardial contractility. METHODS: Derived parameters included: diastolic, systolic and mean arterial BP, peak systolic LVP, HR, end-diastolic LVP, and LVdP/dtmax as the primary contractility index. RESULTS: These results demonstrate that statistically significant increases (amrinone and pimobendan) and decreases (atenolol and itraconazole) in left ventricular dP/dtmax were observed at clinically relevant exposures. DISCUSSION: The analysis from the current study supports the strategic use of the anesthetized dog model early in the drug Discovery process for a comprehensive cardiovascular evaluation that can include left ventricular dP/dtmax with good translation to human. PMID- 29330134 TI - A supplementary functional connectivity microstate attached to the default mode network in depression revealed by resting-state magnetoencephalography. AB - Default mode network (DMN) has discernable involvement in the representation of negative, self-referential information in depression. Both increased and decreased resting-state functional connectivity between the anterior and posterior DMN have been observed in depression. These conflicting connectivity differences necessitated further exploration of the resting-state DMN dysfunction in depression. Hence, we investigated the time-varying dynamic interactions within the DMN via functional connectivity microstates in a sub-second level. 25 patients with depression and 25 matched healthy controls were enrolled in the MEG analysis. Spherical K-means algorithms embedded within an iterative optimization frame were applied to sliding windowed correlation matrices, resulting in sub second alternations of two functional connectivity microstates for groups and highlighting the presence of functional variability. In the power dominant state, depressed patients showed a transient decreased pattern that reflected inter/intra-subnetwork deregulation. A supplementary negatively correlated state simultaneously presented with increased connectivity between the ventromedial prefrontal cortex (vmPFC) and the posterior cingulate cortex (PCC), two core nodes for the anterior and posterior DMN respectively. Additionally, depressed patients stayed longer in the supplementary microstate compared to healthy controls. During the time spent in the supplementary microstate, an attempt to compensate for the aberrant effect of vmPFC on PCC across DMN subnetworks was possibly made to balance the self-related processes disturbed by the dominant pattern. The functional compensation mechanism of the supplementary microstate attached to the dominant disrupted one provided a possible explanation to the existing inconsistent findings between the anterior and posterior DMN in depression. PMID- 29330135 TI - APBB2 is associated with amphetamine use and plasma beta-amyloids in patients receiving methadone maintenance treatment. AB - APBB2, amyloid beta (A4) precursor protein-binding family B member 2, has been reported to be associated with opioid dependence. In this study, we reported the first time that the genetic variants in the APBB2 gene were associated with use of amphetamine in opioid dependent patients undergoing methadone maintenance treatment (MMT). 344 heroin-dependent patients undergoing MMT were recruited and assessed for use of amphetamine and opioids by urine toxicology, withdrawal severity, and side effects. DNAs were genome-widely genotyped for all patients. Single nucleotide polymorphisms (SNPs) in APBB2 were selected for association analyses for methadone treatment responses. Gene expression levels of APBB2 were measured by real-time polymerase chain reaction (PCR) in the EBV-transformed lymphoblastoids from patients. MMT patients who used amphetamine showed a significantly higher percentage of positive results in the urine morphine test (P=0.005), and insomnia (P=0.018). In single locus association analyses, SNPs rs3935357 and rs4861075 located at intron 6 were significantly associated with amphetamine use in both genotype and allele type (general linear model (GLM), P=0.0003, and 0.0002 for genotype, and 0.0003, and 0.002 for allele type, respectively). The major allele type carriers had twice risk of amphetamine use compared to the minor allele type carriers. Subjects with the TT genotype of rs4861075 showed significantly higher levels of APBB2 gene expression in both total (P=0.02) and long-form (P=0.037) than those with CC genotype. Detailed mechanisms underlying the association of APBB2 with amphetamine use and level of plasma amyloid beta in MMT patients require further investigation. PMID- 29330136 TI - White matter volume loss in amyotrophic lateral sclerosis: A meta-analysis of voxel-based morphometry studies. AB - Structural neuroimaging studies of white matter (WM) volume in amyotrophic lateral sclerosis (ALS) using voxel-based morphometry (VBM) have yielded inconsistent findings. This study aimed to perform a quantitative voxel-based meta-analysis using effect-size signed differential mapping (ES-SDM) to establish a statistical consensus between published studies for WM volume alterations in ALS. The pooled meta-analysis revealed significant WM volume losses in the bilateral supplementary motor areas (SMAs), bilateral precentral gyri (PGs), left middle cerebellar peduncle and right cerebellum in patients with ALS, involving the corticospinal tract (CST), interhemispheric fibers, subcortical arcuate fibers, projection fibers to the striatum and cortico-ponto-cerebellar tract. The meta-regression showed that the ALS functional rating scale-revised (ALSFRS-R) was positively correlated with decreased WM volume in the bilateral SMAs, whereas illness duration was negatively correlated with WM volume reduction in the right SMA. This study provides a thorough profile of WM volume loss in ALS and robust evidence that ALS is a multisystem neurodegenerative disease that involves a variety of subcortical WM tracts extending beyond motor cortex involvement. PMID- 29330137 TI - The intersection of stress and reward: BNST modulation of aversive and appetitive states. AB - The bed nucleus of the stria terminalis (BNST) is widely acknowledged as a brain structure that regulates stress and anxiety states, as well as aversive and appetitive behaviours. The diverse roles of the BNST are afforded by its highly modular organisation, neurochemical heterogeneity, and complex intrinsic and extrinsic circuitry. There has been growing interest in the BNST in relation to psychopathologies such as anxiety and addiction. Although research on the human BNST is still in its infancy, there have been extensive preclinical studies examining the molecular signature and hodology of the BNST and their involvement in stress and reward seeking behaviour. This review examines the neurochemical phenotype and connectivity of the BNST, as well as electrophysiological correlates of plasticity in the BNST mediated by stress and/or drugs of abuse. PMID- 29330138 TI - A biogeographic and ecological perspective to the evolution of reproductive behaviour in the family Salamandridae. AB - Amphibians have a complex reproductive behaviour, which shows the highest diversity among tetrapodes. The family Salamandridae, distributed across the entire Holarctic, is one of the most diverse groups of extant salamanders comprising 114 species in 21 genera. The family has a remarkable diversity of courtship modes, amplexus and sperm transfer. It is often hypothesised that this diversity has evolved in adaptation to a specific mating and/or breeding habitat. We test this hypothesis based upon a phylogenetic reconstruction using the complete mitochondrial genome sequences of 45 Salamandridae species, representing all existing genera. We used ancestral character state reconstruction methods and geographic range models and applied relaxed Bayesian molecular clock models to discuss the results in a temporal framework of Salamandridae evolution. Our results show that the family Salamandridae started to diversify in the Late Cretaceous (ca. 87 mya) and is of Western Palearctic origin. Ancestral character state reconstruction predicts that its common ancestor was oviparous, mated on land without amplexus and probably showed a pin wheel spermatophore transfer, which is still found in the Italian endemic Salamandrina terdigidata. Our results suggest that several colonization of continents with subsequent radiations took place, once to the Nearctic and twice into Eastern Asian realms. However, these events were only in one case associated with a change in mating behaviour (dorsal amplexus in Nearctic newts). Around the Cretaceous-Paleogene boundary (K-Pg boundary) several Salamandridae lineages further diverged, again with no obvious changes in mating behaviour. Overall, there is no significant signal for mating character evolution being caused by changes in habitat type, with only a slight tendency that changes in mating habitat might have led to changes in the type of sperm transfer which in turn was associated with changes in the presence or absence of amplexus. PMID- 29330139 TI - Phylogenomics offers resolution of major tunicate relationships. AB - Tunicata, a diverse clade of approximately 3000 described species of marine, filter-feeding chordates, is of great interest to researchers because tunicates are the closest living relatives of vertebrates and they facilitate comparative studies of our own biology. The group also includes numerous invasive species that cause considerable economic damage and some species of tunicates are edible. Despite their diversity and importance, relationships among major lineages of Tunicata are not completely resolved. Here, we supplemented public data with transcriptomes from seven species spanning the diversity of Tunicata and conducted phylogenomic analyses on data sets of up to 798 genes. Sensitivity analyses were employed to examine the influences of reducing compositional heterogeneity and branch-length heterogeneity. All analyses maximally supported a monophyletic Tunicata within Olfactores (Vertebrata + Tunicata). Within Tunicata, all analyses recovered Appendicularia sister to the rest of Tunicata and confirmed (with maximal support) that Thaliacea is nested within Ascidiacea. Stolidobranchia is the sister taxon to all other tunicates except Appendicularia. In most analyses, phlebobranch tunicates were recovered paraphyletic with respect to Aplousobranchia. Support for this topology varied but was strong in some cases. However, when only the 50 best genes based on compositional heterogeneity were analysed, we recovered Phlebobranchia and Aplousobranchia reciprocally monophyletic with strong support, consistent with most traditional morphology based hypotheses. Examination of internode certainty also cast doubt on results of phlebobranch paraphyly, which may be due to limited taxon sampling. Taken together, these results provide a higher-level phylogenetic framework for our closest living invertebrate relatives. PMID- 29330140 TI - Exploring Entertainment Medicine and Professionalization of Self-Care: Interview Study Among Doctors on the Potential Effects of Digital Self-Tracking. AB - BACKGROUND: Nowadays, digital self-tracking devices offer a plethora of possibilities to both healthy and chronically ill users who want to closely examine their body. This study suggests that self-tracking in a private setting will lead to shifting understandings in professional care. To provide more insight into these shifts, this paper seeks to lay bare the promises and challenges of self-tracking while staying close to the everyday professional experience of the physician. OBJECTIVE: The aim of this study was to (1) offer an analysis of how medical doctors evaluate self-tracking methods in their practice and (2) explore the anticipated shifts that digital self-care will bring about in relation to our findings and those of other studies. METHODS: A total of 12 in depth semistructured interviews with general practitioners (GPs) and cardiologists were conducted in Flanders, Belgium, from November 2015 to November 2016. Thematic analysis was applied to examine the transcripts in an iterative process. RESULTS: Four major themes arose in our body of data: (1) the patient as health manager, (2) health obsession and medicalization, (3) information management, and (4) shifting roles of the doctors and impact on the health care organization. Our research findings show a nuanced understanding of the potentials and pitfalls of different forms of self-tracking. The necessity of contextualization of self-tracking data and a professionalization of self-care through digital devices come to the fore as important overarching concepts. CONCLUSIONS: This interview study with Belgian doctors examines the potentials and challenges of self-monitoring while focusing on the everyday professional experience of the physician. The dialogue between our dataset and the existing literature affords a fine-grained image of digital self-care and its current meaning in a medical-professional landscape. PMID- 29330141 TI - Novel Care Pathway for Patients Presenting to the Emergency Department With Atrial Fibrillation. PMID- 29330142 TI - Checklists and Circulation: Cardiovascular Quality and Outcomes. PMID- 29330143 TI - Breast Cancer Targeting through Inhibition of the Endoplasmic Reticulum-Based Apoptosis Regulator Nrh/BCL2L10. AB - Drug resistance and metastatic relapse remain a top challenge in breast cancer treatment. In this study, we present preclinical evidence for a strategy to eradicate advanced breast cancers by targeting the BCL-2 homolog Nrh/BCL2L10, which we discovered to be overexpressed in >45% of a large cohort of breast invasive carcinomas. Nrh expression in these tumors correlated with reduced metastasis-free survival, and we determined it to be an independent marker of poor prognosis. Nrh protein localized to the endoplasmic reticulum. Mechanistic investigations showed that Nrh made BH4 domain-dependent interactions with the ligand-binding domain of the inositol-1,4,5-triphosphate receptor (IP3R), a type 1/3 Ca2+ channel, allowing Nrh to negatively regulate ER-Ca2+ release and to mediate antiapoptosis. Notably, disrupting Nrh/IP3R complexes by BH4 mimetic peptides was sufficient to inhibit the growth of breast cancer cells in vitro and in vivo Taken together, our results highlighted Nrh as a novel prognostic marker and a candidate therapeutic target for late stage breast cancers that may be addicted to Nrh.Significance: These findings offer a comprehensive molecular model for the activity of Nrh/BCL2L10, a little studied antiapoptotic molecule, prognostic marker, and candidate drug target in breast cancer. Cancer Res; 78(6); 1404-17. (c)2018 AACR. PMID- 29330145 TI - MBD2 Ablation Impairs Lymphopoiesis and Impedes Progression and Maintenance of T ALL. AB - Aberrant DNA methylation patterns in leukemia might be exploited for therapeutic targeting. In this study, we employed a genetically deficient mouse model to explore the role of the methylated DNA binding protein MBD2 in normal and malignant hematopoiesis. MBD2 ablation led to diminished lymphocytes. Functional defects of the lymphoid compartment were also observed after in vivo reconstitution of MBD2-deficient hematopoietic stem cells (HSC). In an established model of Notch1-driven T-cell acute lymphoblastic leukemia (T-ALL), MBD2 ablation impeded malignant progression and maintenance by attenuating the Wnt signaling pathway. In clinical specimens of human T-ALL, Wnt signaling pathway signatures were significantly enhanced and positively correlated with the expression and function of MBD2. Furthermore, a number of typical Wnt signaling inhibitory genes were abnormally hypermethylated in primary human T-ALL. Abnormal activation of Wnt signaling in T-ALL was switched off by MBD2 deletion, partially by reactivating epigenetically silenced Wnt signaling inhibitors. Taken together, our results define essential roles for MBD2 in lymphopoiesis and T-ALL and suggest MBD2 as a candidate therapeutic target in T-ALL.Significance: This study highlights a methylated DNA binding protein as a candidate therapeutic target to improve the treatment of T-cell acute lymphoblastic leukemias, as a new starting point for developing epigenetic therapy in this and other lymphoid malignancies. Cancer Res; 78(7); 1632-42. (c)2018 AACR. PMID- 29330146 TI - Demethylation-Induced Overexpression of Shc3 Drives c-Raf-Independent Activation of MEK/ERK in HCC. AB - Invasion and intrahepatic metastasis are major factors of poor prognosis in patients with hepatocellular carcinoma (HCC). In this study, we show that increased Src homolog and collagen homolog 3 (Shc3) expression in malignant HCC cell lines associate with HCC invasion and metastasis. Shc3 (N-Shc) was significantly upregulated in tumors of 33 HCC patient samples as compared with adjacent normal tissues. Further analysis of 52 HCC patient samples showed that Shc3 expression correlated with microvascular invasion, cancer staging, and poor prognosis. Shc3 interacted with major vault protein, resulting in activation of MEK1/2 and ERK1/2 independently of Shc1 and c-Raf; this interaction consequently induced epithelial-mesenchymal transition and promoted HCC cell proliferation and metastasis. The observed increase in Shc3 levels was due to demethylation of its upstream promoter, which allowed c-Jun binding. In turn, Shc3 expression promoted c-Jun phosphorylation in a positive feedback loop. Analysis of metastasis using a tumor xenograft mouse model further confirmed the role of Shc3 in vivo Taken together, our results indicate the importance of Shc3 in HCC progression and identify Shc3 as a novel biomarker and potential therapeutic target in HCC.Significance: Ectopic expression of Shc3 forms a complex with MVP/MEK/ERK to potentiate ERK activation and plays an important role in sorafinib resistance in HCC. Cancer Res; 78(9); 2219-32. (c)2018 AACR. PMID- 29330144 TI - Kindlin-1 Promotes Pulmonary Breast Cancer Metastasis. AB - In breast cancer, increased expression of the cytoskeletal adaptor protein Kindlin-1 has been linked to increased risks of lung metastasis, but the functional basis is unknown. Here, we show that in a mouse model of polyomavirus middle T antigen-induced mammary tumorigenesis, loss of Kindlin-1 reduced early pulmonary arrest and later development of lung metastasis. This phenotype relied on the ability of Kindlin-1 to bind and activate beta integrin heterodimers. Kindlin-1 loss reduced alpha4 integrin-mediated adhesion of mammary tumor cells to the adhesion molecule VCAM-1 on endothelial cells. Treating mice with an anti VCAM-1 blocking antibody prevented early pulmonary arrest. Kindlin-1 loss also resulted in reduced secretion of several factors linked to metastatic spread, including the lung metastasis regulator tenascin-C, showing that Kindlin-1 regulated metastatic dissemination by an additional mechanism in the tumor microenvironment. Overall, our results show that Kindlin-1 contributes functionally to early pulmonary metastasis of breast cancer.Significance: These findings provide a mechanistic proof in mice that Kindin-1, an integrin-binding adaptor protein, is a critical mediator of early lung metastasis of breast cancer. Cancer Res; 78(6); 1484-96. (c)2018 AACR. PMID- 29330147 TI - Genetic Ablation of Rbm38 Promotes Lymphomagenesis in the Context of Mutant p53 by Downregulating PTEN. AB - Mutant p53 exerts gain-of-function effects that drive metastatic progression and therapeutic resistance, but the basis for these effects remain obscure. The RNA binding protein RBM38 limits translation of mutant p53 and is often altered in tumors harboring it. Here we show how loss of Rbm38 significantly alters cancer susceptibility in mutant p53 knock-in mice by shortening lifespan, altering tumor incidence, and promoting T-cell lymphomagenesis. Loss of Rbm38 enhanced mutant p53 expression and decreased expression of the tumor suppressor Pten, a key regulator of T-cell development. Furthermore, Rbm38 was required for Pten expression via stabilization of Pten mRNA through an AU-rich element in its 3'UTR. Our results suggest that Rbm38 controls T-cell lymphomagenesis by jointly modulating mutant p53 and Pten, with possible therapeutic implications for treating T-cell malignancies.Significance: An RNA-binding protein controls T-cell lymphomagenesis by jointly modulating mutant p53 and PTEN, with possible therapeutic implications for treating T-cell malignancies. Cancer Res; 78(6); 1511-21. (c)2018 AACR. PMID- 29330148 TI - Correction. PMID- 29330149 TI - Voluntary exercise and depression-like behavior in rodents: are we running in the right direction? AB - Acute or chronic exposure to stress can increase the risk to develop major depressive disorder, a severe, recurrent and common psychiatric condition. Depression places an enormous social and financial burden on modern society. Although many depressed patients are treated with antidepressants, their efficacy is only modest, underscoring the necessity to develop clinically effective pharmaceutical or behavioral treatments. Exercise training produces beneficial effects on stress-related mental disorders, indicative of clinical potential. The pro-resilient and antidepressant effects of exercise training have been documented for several decades. Nonetheless, the underlying molecular mechanisms and the brain circuitries involved remain poorly understood. Preclinical investigations using voluntary wheel running, a frequently used rodent model that mimics aspects of human exercise training, have started to shed light on the molecular adaptations, signaling pathways and brain nuclei underlying the beneficial effects of exercise training on stress-related behavior. In this review, I highlight several neurotransmitter systems that are putative mediators of the beneficial effects of exercise training on mental health, and review recent rodent studies that utilized voluntary wheel running to promote our understanding of exercise training-induced central adaptations. Advancements in our mechanistic understanding of how exercise training induces beneficial neuronal adaptations will provide a framework for the development of new strategies to treat stress-associated mental illnesses. PMID- 29330150 TI - Dysfunctional signaling underlying endometriosis: current state of knowledge. AB - Endometriosis is defined as the presence of endometrial tissue outside the uterine cavity. It affects approximately 5-10% of women of reproductive age. Endometriosis is associated with dysmenorrhea, dyspareunia and, often, severe pelvic pain. In addition to pain, women with endometriosis often experience infertility. Defining the molecular etiology of endometriosis is a significant challenge for improving the quality of women's lives. Unfortunately, the pathophysiology of endometriosis is not well understood. Here, we summarize the potential causative factors of endometriosis in the following three categories: (1) dysregulation of immune cells in the peritoneal fluid and endometriotic lesions; (2) alteration of apoptotic signaling in retrograde menstrual tissue and cytotoxic T cells involved in endometriosis progression and (3) dysregulation of oxidative stress. Determining the molecular etiology of these dysregulated cellular signaling pathways should provide crucial clues for understanding initiation and progression of endometriosis. Moreover, improved understanding should suggest new molecular therapeutic targets that could improve the specificity of endometriosis treatments and reduce the side effects associated with current approaches. PMID- 29330151 TI - Interleukin-22 reverses human islet dysfunction and apoptosis triggered by hyperglycemia and LIGHT. AB - Interleukin (IL)-22 has recently been suggested as an anti-inflammatory cytokine that could protect the islet cells from inflammation- and glucose-induced toxicity. We have previously shown that the tumor necrosis factor family member, LIGHT, can impair human islet function at least partly via pro-apoptotic effects. Herein, we aimed to investigate the protective role of IL-22 on human islets exposed to the combination of hyperglycemia and LIGHT. First, we found upregulation of LIGHT receptors (LTbetaR and HVEM) in engrafted human islets exposed to hyperglycemia (>11 mM) for 17 days post transplantation by using a double islet transplantation mouse model as well as in human islets cultured with high glucose (HG) (20 mM glucose) + LIGHT in vitro, and this latter effect was attenuated by IL-22. The effect of HG + LIGHT impairing glucose-stimulated insulin secretion was reversed by IL-22. The harmful effect of HG + LIGHT on human islet function seemed to involve enhanced endoplasmic reticulum stress evidenced by upregulation of p-IRE1alpha and BiP, elevated secretion of pro inflammatory cytokines (IL-6, IL-8, IP-10 and MCP-1) and the pro-coagulant mediator tissue factor (TF) release and apoptosis in human islets, whereas all these effects were at least partly reversed by IL-22. Our findings suggest that IL-22 could counteract the harmful effects of LIGHT/hyperglycemia on human islet cells and potentially support the strong protective effect of IL-22 on impaired islet function and survival. PMID- 29330152 TI - Risk of Infection in Type 1 and Type 2 Diabetes Compared With the General Population: A Matched Cohort Study. AB - OBJECTIVE: We describe in detail the burden of infections in adults with diabetes within a large national population cohort. We also compare infection rates between patients with type 1 and type 2 diabetes mellitus (T1DM and T2DM). RESEARCH DESIGN AND METHODS: A retrospective cohort study compared 102,493 English primary care patients aged 40-89 years with a diabetes diagnosis by 2008 (n = 5,863 T1DM and n = 96,630 T2DM) with 203,518 age-sex-practice-matched control subjects without diabetes. Infection rates during 2008-2015, compiled from primary care and linked hospital and mortality records, were compared across 19 individual infection categories. These were further summarized as any requiring a prescription or hospitalization or as cause of death. Poisson regression was used to estimate incidence rate ratios (IRRs) between 1) people with diabetes and control subjects and 2) T1DM and T2DM adjusted for age, sex, smoking, BMI, and deprivation. RESULTS: Compared with control subjects without diabetes, patients with diabetes had higher rates for all infections, with the highest IRRs seen for bone and joint infections, sepsis, and cellulitis. IRRs for infection-related hospitalizations were 3.71 (95% CI 3.27-4.21) for T1DM and 1.88 (95% CI 1.83-1.92) for T2DM. A direct comparison of types confirmed higher adjusted risks for T1DM versus T2DM (death from infection IRR 2.19 [95% CI 1.75 2.74]). We estimate that 6% of infection-related hospitalizations and 12% of infection-related deaths were attributable to diabetes. CONCLUSIONS: People with diabetes, particularly T1DM, are at increased risk of serious infection, representing an important population burden. Strategies that reduce the risk of developing severe infections and poor treatment outcomes are under-researched and should be explored. PMID- 29330153 TI - Heart Failure in Pregnant Women: A Concern Across the Pregnancy Continuum. AB - BACKGROUND: Heart failure (HF) is a leading cause of maternal morbidity and mortality in the United States, but prevalence, correlates, and outcomes of HF related hospitalization during antepartum, delivery, and postpartum periods remain unknown. The objective was to examine HF prevalence, correlates, and outcomes among pregnancy-related hospitalizations among women 13 to 49 years of age. METHODS AND RESULTS: We used the 2001 to 2011 Nationwide Inpatient Sample. Rates of HF were calculated by patient and hospital characteristics. Survey logistic regression was used to estimate adjusted odds ratios representing the association between HF and each outcome, stratified by antepartum, delivery, and postpartum periods. Joinpoint regression was used to describe temporal trends in HF and in-hospital mortality. Over 50 million pregnancy-related hospitalizations were analyzed. The overall rate of HF was 112 cases per 100 000 pregnancy-related hospitalizations. Although postpartum encounters represented only 1.5% of pregnancy-related hospitalizations, ~60% of HF cases occurred postpartum, followed by delivery (27.3%) and antepartum (13.2%). Among postpartum hospitalizations, there was a significant 7.1% (95% confidence interval, 4.4-9.8) annual increase in HF from 2001 to 2006, followed by a steady rate through 2011. HF rates among antepartum hospitalizations increased on average 4.9% (95% confidence interval, 3.0-6.8) annually from 2001 to 2011. Women with a diagnosis of HF were more likely to experience adverse maternal outcomes, as reflected by outcome-specific adjusted odds ratios during antepartum (2.7-25), delivery (6 195), and postpartum (1.5-6.6) periods. CONCLUSIONS: HF is associated with increased risk of maternal mortality and morbidities. During hospitalization, high-risk mothers need to be identified and surveillance programs developed before discharge. PMID- 29330154 TI - Novel Wearable Seismocardiography and Machine Learning Algorithms Can Assess Clinical Status of Heart Failure Patients. AB - BACKGROUND: Remote monitoring of patients with heart failure (HF) using wearable devices can allow patient-specific adjustments to treatments and thereby potentially reduce hospitalizations. We aimed to assess HF state using wearable measurements of electrical and mechanical aspects of cardiac function in the context of exercise. METHODS AND RESULTS: Patients with compensated (outpatient) and decompensated (hospitalized) HF were fitted with a wearable ECG and seismocardiogram sensing patch. Patients stood at rest for an initial recording, performed a 6-minute walk test, and then stood at rest for 5 minutes of recovery. The protocol was performed at the time of outpatient visit or at 2 time points (admission and discharge) during an HF hospitalization. To assess patient state, we devised a method based on comparing the similarity of the structure of seismocardiogram signals after exercise compared with rest using graph mining (graph similarity score). We found that graph similarity score can assess HF patient state and correlates to clinical improvement in 45 patients (13 decompensated, 32 compensated). A significant difference was found between the groups in the graph similarity score metric (44.4+/-4.9 [decompensated HF] versus 35.2+/-10.5 [compensated HF]; P<0.001). In the 6 decompensated patients with longitudinal data, we found a significant change in graph similarity score from admission (decompensated) to discharge (compensated; 44+/-4.1 [admitted] versus 35+/-3.9 [discharged]; P<0.05). CONCLUSIONS: Wearable technologies recording cardiac function and machine learning algorithms can assess compensated and decompensated HF states by analyzing cardiac response to submaximal exercise. These techniques can be tested in the future to track the clinical status of outpatients with HF and their response to pharmacological interventions. PMID- 29330155 TI - Amlexanox Inhibits Cerebral Ischemia-Induced Delayed Astrocytic High-Mobility Group Box 1 Release and Subsequent Brain Damage. AB - High-mobility group box 1 (HMGB1) is increased in the cerebrospinal fluid (CSF) and serum during the early and late phases of brain ischemia and is known to contribute to brain damage. However, detailed characterization underlying cell type-specific HMGB1 release and pathophysiological roles of extracellularly released HMGB1 in ischemic brain remain unclear. Here, we examined cell type specific HMGB1 release and the therapeutic potential of amlexanox, an inhibitor of nonclassical release, and of an anti-HMGB1 antibody against ischemic brain damage. HMGB1 depletion from neuronal nuclei was observed within 3 hours after transient middle cerebral artery occlusion (tMCAO), whereas the intracerebroventricular (i.c.v.) pretreatment with amlexanox blocked HMGB1 release from neurons, resulting in HMGB1 redistribution in the nuclei and cytoplasm. HMGB1 was selectively released from astrocytes 27 hours after tMCAO and this HMGB1 release was blocked by late treatment with amlexanox (i.c.v.) 24 hours after tMCAO. Proximity extension assay revealed that the HMGB1 level was elevated in the CSF at 3 and 27 hours after tMCAO. This late treatment with amlexanox significantly protected the brain from ischemic damage, but its pretreatment 30 minutes before tMCAO failed to show any protection. The late treatment (i.c.v.) with anti-HMGB1 antibody 24 hours after tMCAO also ameliorated ischemic brain damage 48 hours after tMCAO. Thus, the inhibition of brain damage by late treatment with amlexanox or anti-HMGB1 antibody indicates that late HMGB1 release plays a role in the maintenance of stroke-induced brain damage, and the inhibition of this release would be a novel therapeutic target for protection of ischemic brain damage. PMID- 29330157 TI - Measuring the prevention of harm due to minimum alcohol pricing. PMID- 29330156 TI - Application of Receptor Theory to the Design and Use of Fixed-Proportion Mu Opioid Agonist and Antagonist Mixtures in Rhesus Monkeys. AB - Receptor theory predicts that fixed-proportion mixtures of a competitive, reversible agonist (e.g., fentanyl) and antagonist (e.g., naltrexone) at a common receptor [e.g., mu-opioid receptors (MORs)] will result in antagonist proportion dependent decreases in apparent efficacy of the agonist/antagonist mixtures and downward shifts in mixture dose-effect functions. The present study tested this hypothesis by evaluating behavioral effects of fixed-proportion fentanyl/naltrexone mixtures in a warm-water tail-withdrawal procedure in rhesus monkeys (n = 4). Fentanyl (0.001-0.056 mg/kg) alone, naltrexone (0.032-1.0 mg/kg, i.m.) alone, and fixed-proportion mixtures of fentanyl/naltrexone (1:0.025, 1:0.074, and 1:0.22) were administered in a cumulative-dosing procedure, and the proportions were based on published fentanyl and naltrexone Kd values at MOR in monkey brain. Fentanyl alone produced dose-dependent antinociception at both 50 and 54 degrees C thermal intensities. Up to the largest dose tested, naltrexone alone did not alter nociception. Consistent with receptor theory predictions, naltrexone produced a proportion-dependent decrease in the effectiveness of fentanyl/naltrexone mixtures to produce antinociception. The maximum effects of fentanyl, naltrexone, and each mixture were also used to generate an efficacy effect scale for antinociception at each temperature, and this scale was evaluated for its utility in quantifying 1) efficacy requirements for antinociception at 50 and 54 degrees C and 2) relative efficacy of six MOR agonists that vary in their efficacies to produce agonist-stimuated GTPgammaS binding in vitro (from lowest to highest efficacy: 17-cyclopropylmethyl-3,14beta dihyroxy-4,5alpha-epoxy-6alpha-[(3'-isoquinolyl)acetamindo]morphine, nalbuphine, buprenorphine, oxycodone, morphine, and methadone). These results suggest that fixed-proportion agonist/antagonist mixtures may offer a useful strategy to manipulate apparent drug efficacy for basic research or therapeutic purposes. PMID- 29330159 TI - Commercial influence in control of non-communicable diseases. PMID- 29330160 TI - US is the most dangerous wealthy nation for a child to be born into, study concludes. PMID- 29330163 TI - Affective stimuli in behavioural interventions soliciting for health check-up services and the service users' socioeconomic statuses: a study at Japanese pachinko parlours. AB - : Editor's note The study reported in this article examines a health intervention that uses gendered stereotypes of the nursing profession and suggestive uniforms that play on women's sexuality to encourage people to engage in health checkups. The intervention was not under the control of the authors and the study was approved by an institutional research ethics board. The Journal of Epidemiology & Community Health condemns the use of sexism, gender and professional stereotypes and other forms of discriminatory or exploitative behaviour for any purpose, including health promotion programs. In light of concerns raised about this paper (see eLetters with this paper), we are conducting an audit of our review process and will put in place measures to ensure that the material we publish condemns sexism, racism and other forms of discrimination and embodies principles of inclusion and non-discrimination. BACKGROUND: Socioeconomically vulnerable people are likely to have more health risks because of inadequate behaviour choices related to chronic social stresses. Brain science suggests that stress causes cognitively biased automatic decision making, preferring instant stress relief and pleasure (eg, smoking, alcohol use and drug abuse) as opposed to reflectively seeking health-maintenance services (eg, health check-ups). As such, hedonic stimuli that nudge people towards preventive actions could reduce health behaviour disparities. The purpose of this intervention study was to test this hypothesis. METHODS: An instant health check-up service company had 320 health check-up sessions at pachinko (Japanese gambling) parlours; 1721 persons in intervention sessions and 6507 persons in control sessions received the service. The stimuli the company used in the intervention sessions were young women wearing mildly erotic nurse costumes, who solicited the pachinko players for health check-up services. We compared the prevalence of socioeconomically vulnerable individuals between the intervention and control sessions, adjusting for individual-level and parlour-level potential confounders. RESULTS: Even adjusting for health risks and within-parlour clustering, the intervention sessions gathered more socioeconomically vulnerable customers than the regular sessions. Compared with control sessions, in intervention sessions the adjusted prevalence ratios were 1.15 (95% CI 0.99 to 1.35) for not having a job (vs having a job) and 1.36 (95% CI 1.00 to 1.86) for holders of National Health Insurance (which includes more socially vulnerable people than other insurance programmes). CONCLUSION: The results supported our hypothesis. Offering health check-up opportunities equipped with 'tricks' that nudge people to act might be effective for anyone but is potentially more valuable for socially vulnerable people. Ethical discussions are needed to further consider the use of erotic stimuli and other essential drivers of human behaviour. PMID- 29330162 TI - Transcriptome Analyses of Mosaic (MSC) Mitochondrial Mutants of Cucumber in a Highly Inbred Nuclear Background. AB - Cucumber (Cucumis sativus L.) has a large, paternally transmitted mitochondrial genome. Cucumber plants regenerated from cell cultures occasionally show paternally transmitted mosaic (MSC) phenotypes, characterized by slower growth, chlorotic patterns on the leaves and fruit, lower fertility, and rearrangements in their mitochondrial DNAs (mtDNAs). MSC lines 3, 12, and 16 originated from different cell cultures all established using the highly inbred, wild-type line B. These MSC lines possess different rearrangements and under-represented regions in their mtDNAs. We completed RNA-seq on normalized and non-normalized cDNA libraries from MSC3, MSC12, and MSC16 to study their nuclear gene-expression profiles relative to inbred B. Results from both libraries indicated that gene expression in MSC12 and MSC16 were more similar to each other than MSC3. Forty one differentially expressed genes (DEGs) were upregulated and one downregulated in the MSC lines relative to B. Gene functional classifications revealed that more than half of these DEGs are associated with stress-response pathways. Consistent with this observation, we detected elevated levels of hydrogen peroxide throughout leaf tissue in all MSC lines compared to wild-type line B. These results demonstrate that independently produced MSC lines with different mitochondrial polymorphisms show unique and shared nuclear responses. This study revealed genes associated with stress response that could become selection targets to develop cucumber cultivars with increased stress tolerance, and further support of cucumber as a model plant to study nuclear-mitochondrial interactions. PMID- 29330161 TI - Production of BMP4 by endothelial cells is crucial for endogenous thymic regeneration. AB - The thymus is not only extremely sensitive to damage but also has a remarkable ability to repair itself. However, the mechanisms underlying this endogenous regeneration remain poorly understood, and this capacity diminishes considerably with age. We show that thymic endothelial cells (ECs) comprise a critical pathway of regeneration via their production of bone morphogenetic protein 4 (BMP4) ECs increased their production of BMP4 after thymic damage, and abrogating BMP4 signaling or production by either pharmacologic or genetic inhibition impaired thymic repair. EC-derived BMP4 acted on thymic epithelial cells (TECs) to increase their expression of Foxn1, a key transcription factor involved in TEC development, maintenance, and regeneration, and its downstream targets such as Dll4, a key mediator of thymocyte development and regeneration. These studies demonstrate the importance of the BMP4 pathway in endogenous tissue regeneration and offer a potential clinical approach to enhance T cell immunity. PMID- 29330164 TI - Public health guide to field developments linking ecosystems, environments and health in the Anthropocene. AB - The impacts of global environmental change have precipitated numerous approaches that connect the health of ecosystems, non-human organisms and humans. However, the proliferation of approaches can lead to confusion due to overlaps in terminology, ideas and foci. Recognising the need for clarity, this paper provides a guide to seven field developments in environmental public health research and practice: occupational and environmental health; political ecology of health; environmental justice; ecohealth; One Health; ecological public health; and planetary health. Field developments are defined in terms of their uniqueness from one another, are historically situated, and core texts or journals are highlighted. The paper ends by discussing some of the intersecting features across field developments, and considers opportunities created through such convergence. This field guide will be useful for those seeking to build a next generation of integrative research, policy, education and action that is equipped to respond to current health and sustainability challenges. PMID- 29330165 TI - Survival in relation to multimorbidity patterns in older adults in primary care in Barcelona, Spain (2010-2014): a longitudinal study based on electronic health records. AB - BACKGROUND: Several studies have analysed the characteristics of multimorbidity patterns but none have evaluated the relationship with survival. The purpose of this study was to compare survival across older adults with different chronic multimorbidity patterns (CMPs). METHODS: Prospective longitudinal observational study using electronic health records for 190 108 people aged >=65 years in Barcelona, Spain (2009-2014). CMPs were identified by cluster analysis. Mortality rates were estimated using the Catalan population structure and individual time at risk. Survival according to CMP (Cox regression) was analysed using hazard ratios (HRs) and 95% confidence intervals (CIs) with stratification by sex and age group (65-79, 80-94) and adjustment for age at onset, deprivation index, number of chronic conditions and invoiced drugs. RESULTS: The highest mortality rates were observed in men, adults aged 80-94 years, socially disadvantaged quintiles and people prescribed more drugs and with fewer conditions. Using the musculoskeletal pattern as the reference category, men with the digestive respiratory pattern had a higher risk of death, with adjusted HRs of 6.16 (95% CI 5.37 to 7.06) in the 65-79 age group and 2.62 (95% CI 2.31 to 2.97) in the 80-94 age group. In women, the cardiovascular pattern was associated with the highest risk, with adjusted HRs of 6.34 (95% CI 5.28 to 7.61) in the 65-79 age group and 3.05 (95% CI 2.73 to 3.41) in the 80-94 age group. These patterns were also associated with the highest mortality rates. CONCLUSIONS: Mortality and survival vary according to CMPs in older adults stratified by sex and age. Our findings are useful for guiding the design and implementation of clinical management strategies. PMID- 29330166 TI - Impact of free access to leisure facilities and community outreach on inequalities in physical activity: a quasi-experimental study. AB - BACKGROUND: There are large inequalities in levels of physical activity in the UK, and this is an important determinant of health inequalities. Little is known about the effectiveness of community-wide interventions to increase physical activity and whether effects differ by socioeconomic group. METHODS: We conducted interrupted time series and difference-in-differences analyses using local administrative data and a large national survey to investigate the impact of an intervention providing universal free access to leisure facilities alongside outreach and marketing activities in a deprived local authority area in the northwest of England. Outcomes included attendances at swimming and gym sessions, self-reported participation in gym and swim activity and any physical activity. RESULTS: The intervention was associated with a 64% increase in attendances at swimming and gym sessions (relative risk 1.64, 95% CI 1.43 to 1.89, P<0.001), an additional 3.9% of the population participating in at least 30 min of moderate intensity gym or swim sessions during the previous four weeks (95% CI 3.6 to 4.1) and an additional 1.9% of the population participating in any sport or active recreation of at least moderate intensity for at least 30 min on at least 12 days out of the last four weeks (95% CI 1.7 to 2.1). The effect on gym and swim activity and overall levels of participation in physical activity was significantly greater for the more disadvantaged socioeconomic group. CONCLUSIONS: The study suggests that removing user charges from leisure facilities in combination with outreach and marketing activities can increase overall population levels of physical activity while reducing inequalities. PMID- 29330167 TI - Differences in declining mortality rates due to coronary heart disease by neighbourhood deprivation. AB - BACKGROUND: Cardiovascular disease (CVD) is the main cause of death in most industrialised countries, including those in Europe. The mortality rates due to coronary heart disease (CHD), one of the most serious CVD conditions, have been decreasing in most European countries during the last decades. However, whether the trends over time in CHD mortality rates differ depending on neighbourhood deprivation has rarely been investigated. METHODS: For each year of the study period, 1988-2012, in Sweden, age-standardised mortality rates were calculated for three different types of neighbourhoods, characterised by a Neighbourhood Deprivation Index. Joinpoint regression was used to investigate potential changes in age-standardised mortality rates by neighbourhood deprivation and over time. RESULTS: Over the study period, age-standardised mortality rates due to CHD were consistently the highest in the deprived neighbourhoods and the lowest in the affluent neighbourhoods. We observed a statistically significant overall decline, ranging from 67% to 59%, in the age-standardised CHD mortality rates for each level of neighbourhood deprivation. Furthermore, the decline for the affluent neighbourhoods was significantly higher compared with the decline in the deprived neighbourhoods. CONCLUSION: Age-standardised CHD mortality rates decreased significantly in Sweden between 1988 and 2012. This decline was more pronounced in the affluent neighbourhoods, which indicates that the improvements in prevention and treatment of CHD have not benefited individuals residing in deprived neighbourhoods to an equal extent. Knowledge of time trends in CHD mortality by level of neighbourhood deprivation may help guide decision-makers in the development of appropriate healthcare policies for deprived neighbourhoods. PMID- 29330169 TI - Inter-rater reliability in the Paediatric Observation Priority Score (POPS). AB - OBJECTIVE: The primary objective of this study was to determine the level of inter-rater reliability between nursing staff for the Paediatric Observation Priority Score (POPS). DESIGN: Retrospective observational study. SETTING: Single centre paediatric emergency department. PARTICIPANTS: 12 participants from a convenience sample of 21 nursing staff. INTERVENTIONS: Participants were shown video footage of three pre-recorded paediatric assessments and asked to record their own POPS for each child. The participants were blinded to the original, in person POPS. Further data were gathered in the form of a questionnaire to determine the level of training and experience the candidate had using the POPS score prior to undertaking this study. MAIN OUTCOME MEASURES: Inter-rater reliability among participants scoring of the POPS. RESULTS: Overall kappa value for case 1 was 0.74 (95% CI 0.605 to 0.865), case 2 was 1 (perfect agreement) and case 3 was 0.66 (95% CI 0.58 to 0.744). CONCLUSION: This study suggests there is good inter-rater reliability between different nurses' use of POPS in assessing sick children in the emergency department. PMID- 29330170 TI - Retrospective review of Synacthen testing in infants. AB - BACKGROUND: A subnormal cortisol response (30 min level (C30min)<550 nmol/L) to synthetic adrenocorticotrophic hormone/Synacthen test (SDST) in all infants does not necessarily indicate underlying or persistent hypothalamic-pituitary-adrenal axis pathology. METHODS: We retrospectively evaluated the diagnoses and outcomes in 68 infants who had a SDST at age <6 months from 2011 to 2014. RESULTS: 29 (43%) infants had a subnormal SDST. Causative pathology was identified in 9/29 (31%). In 20/29 (69%) with no identified pathology, repeat SDST was normal in 18/20 (90%) at median age 0.6 (range 0.1-3.2) years but persistently subnormal in 2. Those with a transient abnormality were more likely to be small for gestational age (P=0.03) and had higher initial SDST C30min (390 nmol/L vs 181 nmol/L, P=0.01) than those with pathology. CONCLUSION: Specific aetiology can be identified in a third of infants with a subnormal SDST. When the aetiology remains elusive, adrenal function should be reassessed as the problem can be transient. PMID- 29330168 TI - MRB7260 is essential for productive protein-RNA interactions within the RNA editing substrate binding complex during trypanosome RNA editing. AB - The trypanosome RNA editing substrate binding complex (RESC) acts as the platform for mitochondrial uridine insertion/deletion RNA editing and facilitates the protein-protein and protein-RNA interactions required for the editing process. RESC is broadly comprised of two subcomplexes: GRBC (guide RNA binding complex) and REMC (RNA editing mediator complex). Here, we characterize the function and position in RESC organization of a previously unstudied RESC protein, MRB7260. We show that MRB7260 forms numerous RESC-related complexes, including a novel, small complex with the guide RNA binding protein, GAP1, which is a canonical GRBC component, and REMC components MRB8170 and TbRGG2. RNA immunoprecipitations in MRB7260-depleted cells show that MRB7260 is critical for normal RNA trafficking between REMC and GRBC. Analysis of protein-protein interactions also reveals an important role for MRB7260 in promoting stable association of the two subcomplexes. High-throughput sequencing analysis of RPS12 mRNAs from MRB7260 replete and depleted cells demonstrates that MRB7260 is critical for gRNA exchange and early gRNA utilization, with the exception of the initiating gRNA. Together, these data demonstrate that MRB7260 is essential for productive protein RNA interactions with RESC during RNA editing. PMID- 29330171 TI - Historic child sexual abuse: have we got it right? PMID- 29330172 TI - Origins of tobacco harm reduction in the UK: the 'Product Modification Programme' (1972-1991). AB - OBJECTIVE: To better understand the current embrace of long-term nicotine maintenance by British governmental agencies and tobacco harm reduction by several leading British public health organisations, describe the context and deliberations of the UK's first formal tobacco risk reduction programme: 'Product Modification'. METHODS: Analysis of previously secret tobacco industry documents, news archives and Parliamentary debate records. RESULTS: From 1972 to 1991, the British government sought to investigate safer smoking through the 'product modification programme'. The Independent Scientific Committee on Smoking and Health (ISCSH) advised the British government on these efforts and collaborated with the tobacco industry, with which government then negotiated to determine policy. The ISCSH operated from four industry-backed premises, which contributed to the ISCSH's support of safer smoking: (1) reduced toxicity indicates reduced risk; (2) collaboration with the tobacco industry will not undermine tobacco control; (3) nicotine addiction is unavoidable; (4) to curtail cigarette use, solutions must be consumer-approved (ie, profitable). These premises often undermined tobacco control efforts and placed the ISCSH at odds with broader currents in public health. The product modification programme was abandoned in 1991 as the European Community began requiring members to adopt upper tar limits, rendering the ISCSH redundant. POLICY IMPLICATIONS: Endorsements of reduced harm tobacco products share the same four premises that supported the product modification programme. Current tobacco harm reduction premises and policies supported by the British government and leading British public health organisations may reflect the historical influence of the tobacco industry. PMID- 29330173 TI - Seasonal variations in tuberculosis diagnosis among HIV-positive individuals in Southern Africa: analysis of cohort studies at antiretroviral treatment programmes. AB - OBJECTIVES: Seasonal variations in tuberculosis diagnoses have been attributed to seasonal climatic changes and indoor crowding during colder winter months. We investigated trends in pulmonary tuberculosis (PTB) diagnosis at antiretroviral therapy (ART) programmes in Southern Africa. SETTING: Five ART programmes participating in the International Epidemiology Database to Evaluate AIDS in South Africa, Zambia and Zimbabwe. PARTICIPANTS: We analysed data of 331 634 HIV positive adults (>15 years), who initiated ART between January 2004 and December 2014. PRIMARY OUTCOME MEASURE: We calculated aggregated averages in monthly counts of PTB diagnoses and ART initiations. To account for time trends, we compared deviations of monthly event counts to yearly averages, and calculated correlation coefficients. We used multivariable regressions to assess associations between deviations of monthly ART initiation and PTB diagnosis counts from yearly averages, adjusted for monthly air temperatures and geographical latitude. As controls, we used Kaposi sarcoma and extrapulmonary tuberculosis (EPTB) diagnoses. RESULTS: All programmes showed monthly variations in PTB diagnoses that paralleled fluctuations in ART initiations, with recurrent patterns across 2004-2014. The strongest drops in PTB diagnoses occurred in December, followed by April-May in Zimbabwe and South Africa. This corresponded to holiday seasons, when clinical activities are reduced. We observed little monthly variation in ART initiations and PTB diagnoses in Zambia. Correlation coefficients supported parallel trends in ART initiations and PTB diagnoses (correlation coefficient: 0.28, 95% CI 0.21 to 0.35, P<0.001). Monthly temperatures and latitude did not substantially change regression coefficients between ART initiations and PTB diagnoses. Trends in Kaposi sarcoma and EPTB diagnoses similarly followed changes in ART initiations throughout the year. CONCLUSIONS: Monthly variations in PTB diagnosis at ART programmes in Southern Africa likely occurred regardless of seasonal variations in temperatures or latitude and reflected fluctuations in clinical activities and changes in health seeking behaviour throughout the year, rather than climatic factors. PMID- 29330174 TI - Views and experiences of seeking information and help for vitiligo: a qualitative study of written accounts. AB - OBJECTIVES: Vitiligo is a relatively common autoimmune condition causing loss of skin pigment. Around 1 in 100 people in the UK develop vitiligo. It can have a significant impact on quality of life for many of those affected. How people access information and help for vitiligo may influence how they manage such impact. We aimed to explore people's views and experiences of seeking health information and help for vitiligo. DESIGN: Qualitative analysis of free-text responses to four open-ended questions in an online survey. SETTING: Online survey conducted in the UK between February and March 2016. PARTICIPANTS: A survey link was emailed to 675 members of The Vitiligo Society, a UK-based charity providing information and support for people with vitiligo. One hundred and sixty-one members responded to the survey (24%). RESULTS: Many participants wrote extensive free text, often reporting frustration with help-seeking. They perceived general practitioners (GP) as their primary source of advice but felt that GPs had low awareness of available treatments. Where GPs appeared sympathetic or signposted towards further information this was appreciated, even where people felt their GP had not seemed knowledgeable. Many felt that vitiligo was dismissed by health professionals including GPs and dermatologists as 'cosmetic', which upset those who experienced substantial impact. Participants expressed concerns about the credibility of online information on vitiligo and the need for reliable, detailed information, as well as a desire for support with managing its psychosocial impact. CONCLUSIONS: Information and help-seeking needs of people with vitiligo currently appear to be poorly met, even among members of The Vitiligo Society, who are likely to have received more information than others. People with vitiligo would welcome greater health professional awareness of available vitiligo treatments. Acknowledging the psychosocial impacts of vitiligo and signposting towards credible information are also welcomed. PMID- 29330175 TI - Development and validation of an instrument for measuring the burden of medicine on functioning and well-being: the Medication-Related Burden Quality of Life (MRB QoL) tool. AB - OBJECTIVE: Medication-related burden (MRB) is a negative experience with medicine, which may impact on psychological, social, physical and financial well being of an individual. This study describes the development and initial validation of an instrument specifically designed to measure MRB on functioning and well-being-the Medication-Related Burden Quality of Life (MRB-QoL) tool. METHODS: An initial pool of 76-items for MRB-QoL was generated. The link to MRB QoL survey was sent to a sample of consumers living with at least one chronic medical condition and taking >=3 prescription medicines on a regular basis. Exploratory factor analysis (EFA) was used to determine the underlining factor structure. Internal consistency (Cronbach's alpha) and construct validity were examined. The latter was examined through correlation with Medication Regimen Complexity Index (MRCI), Drug Burden Index (DBI) and Charlson's Comorbidity Index (CCI). RESULTS: 367 consumers completed the survey (51.2% male). EFA resulted in a 31-item, five-factor solution explaining 72% of the total variance. The five subscales were labelled as 'Routine and Regimen Complexity' (11 items), 'Psychological Burden' (six items), 'Functional and Role Limitation' (seven items), 'Therapeutic Relationship' (three items) and 'Social Burden' (four items). All subscales showed good internal consistency (Cronbach's alpha 0.87 to 0.95). Discriminant validity of MRB-QoL was demonstrated via its correlations with MRCI (Spearman's r -0.16 to 0.08), DBI (r 0.12 to 0.28) and CCI (r -0.23 to 0.15). Correlation between DBI and 'Functional and Role Limitation' subscale (r 0.36) indicated some evidence of convergent validity. Patients with polypharmacy, multiple morbidity and DBI >0 had higher median scores of MRB-QoL providing evidence for known group validity. CONCLUSIONS: The MRB-QoL V.1 has good construct validity and internal consistency. The MRB-QoL may be a useful humanistic measure for evaluating the impact of pharmaceutical care interventions on patients' quality of life. Future research is warranted to further examine additional psychometric properties of MRB-QoL V.1 and its utility in patient care. PMID- 29330176 TI - Therapists' experiences with a new treatment combining physical exercise and dietary therapy (the PED-t) for eating disorders: an interview study in a randomised controlled trial at the Norwegian School of Sport Sciences. AB - OBJECTIVES: The aim of the current study is to explore how therapists running a guided physical exercise and dietary therapy programme (PED-t) experience their contribution to the treatment of patients with bulimia nervosa and binge eating disorder. METHODS: Ten therapists running the PED-t were semistructurally interviewed and the transcribed interviews were analysed using a systematic text condensation approach. SETTING: The study was run within the context of a randomised controlled trial at the Norwegian School of Sport Sciences. RESULTS: The therapists experienced their knowledge about physical exercise and nutrition as important and useful, and that they could share their knowledge with the patients in different ways and with confidence in their own role. They also believed that their knowledge could serve as tools for the patients' post treatment recovery and management of their daily lives. Moreover, the therapists put much effort in adjusting their teaching to fit each individual participant. Finally, they reported their personal qualities as important to build trust and therapeutic alliance. CONCLUSIONS: The terms 'clinical confidence' and 'alliance' may stand out as the overarching 'metacategories' covering the experiences revealed in this study. The clinical implication is that new groups of professionals may have an important role in the treatment of eating disorders. TRIAL REGISTRATION NUMBER: NCTO2079935; Results. PMID- 29330177 TI - Incidence of Facultative Bacterial Endosymbionts in Spider Mites Associated with Local Environments and Host Plants. AB - Spider mites are frequently associated with multiple endosymbionts whose infection patterns often exhibit spatial and temporal variation. However, the association between endosymbiont prevalence and environmental factors remains unclear. Here, we surveyed endosymbionts in natural populations of the spider mite, Tetranychus truncatus, in China, screening 935 spider mites from 21 localities and 12 host plant species. Three facultative endosymbiont lineages, Wolbachia, Cardinium, and Spiroplasma, were detected at different infection frequencies (52.5%, 26.3%, and 8.6%, respectively). Multiple endosymbiont infections were observed in most local populations, and the incidence of individuals with the Wolbachia-Spiroplasma coinfection was higher than expected from the frequency of each infection within a population. Endosymbiont infection frequencies exhibited associations with environmental factors: Wolbachia infection rates increased at localities with higher annual mean temperatures, while Cardinium and Spiroplasma infection rates increased at localities from higher altitudes. Wolbachia was more common in mites from Lycopersicon esculentum and Glycine max compared to those from Zea mays This study highlights that host endosymbiont interactions may be associated with environmental factors, including climate and other geographically linked factors, as well as the host's food plant.IMPORTANCE The aim of this study was to examine the incidence of endosymbiont distribution and the infection patterns in spider mites. The main findings are that multiple endosymbiont infections were more common than expected and that endosymbiont infection frequencies were associated with environmental factors. This work highlights that host-endosymbiont interactions need to be studied within an environmental and geographic context. PMID- 29330178 TI - Development of an Efficient Genome Editing Tool in Bacillus licheniformis Using CRISPR-Cas9 Nickase. AB - Bacillus strains are important industrial bacteria that can produce various biochemical products. However, low transformation efficiencies and a lack of effective genome editing tools have hindered its widespread application. Recently, clustered regularly interspaced short palindromic repeat (CRISPR)-Cas9 techniques have been utilized in many organisms as genome editing tools because of their high efficiency and easy manipulation. In this study, an efficient genome editing method was developed for Bacillus licheniformis using a CRISPR Cas9 nickase integrated into the genome of B. licheniformis DW2 with overexpression driven by the P43 promoter. The yvmC gene was deleted using the CRISPR-Cas9n technique with homology arms of 1.0 kb as a representative example, and an efficiency of 100% was achieved. In addition, two genes were simultaneously disrupted with an efficiency of 11.6%, and the large DNA fragment bacABC (42.7 kb) was deleted with an efficiency of 79.0%. Furthermore, the heterologous reporter gene aprN, which codes for nattokinase in Bacillus subtilis, was inserted into the chromosome of B. licheniformis with an efficiency of 76.5%. The activity of nattokinase in the DWc9nDelta7/pP43SNT-SsacC strain reached 59.7 fibrinolytic units (FU)/ml, which was 25.7% higher than that of DWc9n/pP43SNT-SsacC Finally, the engineered strain DWc9nDelta7 (Deltaepr DeltawprA Deltampr DeltaaprE Deltavpr DeltabprA DeltabacABC), with multiple disrupted genes, was constructed using the CRISPR-Cas9n technique. Taken together, we have developed an efficient genome editing tool based on CRISPR Cas9n in B. licheniformis This tool could be applied to strain improvement for future research.IMPORTANCE As important industrial bacteria, Bacillus strains have attracted significant attention due to their production of biological products. However, genetic manipulation of these bacteria is difficult. The CRISPR-Cas9 system has been applied to genome editing in some bacteria, and CRISPR-Cas9n was proven to be an efficient and precise tool in previous reports. The significance of our research is the development of an efficient, more precise, and systematic genome editing method for single-gene deletion, multiple gene disruption, large DNA fragment deletion, and single-gene integration in Bacillus licheniformis via Cas9 nickase. We also applied this method to the genetic engineering of the host strain for protein expression. PMID- 29330179 TI - Influence of type-I fimbriae and fluid shear stress on bacterial behavior and multicellular architecture of early Escherichia coli biofilms at single-cell resolution. AB - Biofilm formation on abiotic surfaces in food and medical industry can cause severe contamination and infection, yet how biological and physical factors determine cellular architecture of early biofilms and bacterial behavior of the constituent cells remains largely unknown. In this study we examine the specific role of type-I fimbriae in nascent stages of biofilm formation and the response of micro-colonies to environmental flow shear at single-cell resolution. The results show that type-I fimbriae are not required for reversible adhesion from plankton, but critical for irreversible adhesion of Escherichia coli (E.coli) MG1655 forming biofilms on polyethylene terephthalate (PET) surfaces. Besides establishing a firm cell-surface contact, the irreversible adhesion seems necessary to initiate the proliferation of E.coli on the surface. After application of shear stress, bacterial retention is dominated by the 3D architecture of colonies independent of the population and the multi-layered structure could protect the embedded cells from being insulted by fluid shear, while cell membrane permeability mainly depends on the biofilm population and the duration time of the shear stress.ImportanceBacterial biofilms could lead to severe contamination problems in medical devices and food processing equipment. However, biofilms are usually studied at a rough macroscopic level, thus little is known about how individual bacterial behavior within biofilms and multicellular architecture are influenced by bacterial appendages (e.g. pili/fimbriae) and environmental factors during early biofilm formation. We apply Confocal Laser Scanning Microscopy (CLSM) to visualize E.coli micro-colonies at single-cell resolution. Our findings suggest that type-I fimbriae are vital to the initiation of bacterial proliferation on surfaces and that the responses of biofilm architecture and cell membrane permeability of constituent bacteria to fluid shear stress are different, which are respectively regulated by the 3D morphology and the population of micro-colonies. PMID- 29330180 TI - Intraclade Variability in Toxin Production and Cytotoxicity of Bacillus cereus Group Type Strains and Dairy-Associated Isolates. AB - While some species in the Bacillus cereus group are well-characterized human pathogens (e.g., B. anthracis and B. cereus sensu stricto), the pathogenicity of other species (e.g., B. pseudomycoides) either has not been characterized or is presently not well understood. To provide an updated characterization of the pathogenic potential of species in the B. cereus group, we classified a set of 52 isolates, including 8 type strains and 44 isolates from dairy-associated sources, into 7 phylogenetic clades and characterized them for (i) the presence of toxin genes, (ii) phenotypic characteristics used for identification, and (iii) cytotoxicity to human epithelial cells. Overall, we found that B. cereus toxin genes are broadly distributed but are not consistently present within individual species and/or clades. After growth at 37 degrees C, isolates within a clade did not typically show a consistent cytotoxicity phenotype, except for isolates in clade VI (B. weihenstephanensis/B. mycoides), where none of the isolates were cytotoxic, and isolates in clade I (B. pseudomycoides), which consistently displayed cytotoxic activity. Importantly, our study highlights that B. pseudomycoides is cytotoxic toward human cells. Our results indicate that the detection of toxin genes does not provide a reliable approach to predict the pathogenic potential of B. cereus group isolates, as the presence of toxin genes is not always consistent with cytotoxicity phenotype. Overall, our results suggest that isolates from multiple B. cereus group clades have the potential to cause foodborne illness, although cytotoxicity is not always consistently found among isolates within each clade.IMPORTANCE Despite the importance of the Bacillus cereus group as a foodborne pathogen, characterizations of the pathogenic potential of all B. cereus group species were lacking. We show here that B. pseudomycoides (clade I), which has been considered a harmless environmental microorganism, produces toxins and exhibits a phenotype consistent with the production of pore-forming toxins. Furthermore, B. mycoides/B. weihenstephanensis isolates (clade VI) did not show cytotoxicity when grown at 37 degrees C, despite carrying multiple toxin genes. Overall, we show that the current standard methods to characterize B. cereus group isolates and to detect the presence of toxin genes are not reliable indicators of species, phylogenetic clades, or an isolate's cytotoxic capacity, suggesting that novel methods are still needed for differentiating pathogenic from nonpathogenic species within the B. cereus group. Our results also contribute data that are necessary to facilitate risk assessments and a better understanding as to which B. cereus group species are likely to cause foodborne illness. PMID- 29330181 TI - A Novel Corynebacterium glutamicum l-Glutamate Exporter. AB - Besides metabolic pathways and regulatory networks, transport systems are also pivotal for cellular metabolism and hyperproduction of biochemicals using microbial cell factories. The identification and characterization of transporters are therefore of great significance for the understanding and engineering of transport reactions. Herein, a novel l-glutamate exporter, MscCG2, which exists extensively in Corynebacterium glutamicum strains but is distinct from the only known l-glutamate exporter, MscCG, was discovered in an industrial l-glutamate producing C. glutamicum strain. MscCG2 was predicted to possess three transmembrane helices in the N-terminal region and located in the cytoplasmic membrane, which are typical structural characteristics of the mechanosensitive channel of small conductance. MscCG2 has a low amino acid sequence identity (23%) to MscCG and evolved separately from MscCG with four transmembrane helices. Despite the considerable differences between MscCG2 and MscCG in sequence and structure, gene deletion and complementation confirmed that MscCG2 also functioned as an l-glutamate exporter and an osmotic safety valve in C. glutamicum Besides, transcriptional analysis showed that MscCG2 and MscCG genes were transcribed in similar patterns and not induced by l-glutamate-producing conditions. It was also demonstrated that MscCG2-mediated l-glutamate excretion was activated by biotin limitation or penicillin treatment and that constitutive l-glutamate excretion was triggered by a gain-of-function mutation of MscCG2 (A151V). Discovery of MscCG2 will enrich the understanding of bacterial amino acid transport and provide additional targets for exporter engineering.IMPORTANCE The exchange of matter, energy, and information with surroundings is fundamental for cellular metabolism. Therefore, studying transport systems that are essential for these processes is of great significance. Besides, transport systems of bacterial cells are usually related to product excretion as well as product reuptake, making transporter engineering a useful strategy for strain improvement. The significance of our research is in identifying and characterizing a novel l-glutamate exporter from the industrial workhorse Corynebacterium glutamicum, which will enrich the understanding of l-glutamate excretion and provide a new target for studying bacterial amino acid transport and engineering transport reactions. PMID- 29330182 TI - Fluorescence Recovery Allows the Implementation of a Fluorescence Reporter Gene Platform Applicable for the Detection and Quantification of Horizontal Gene Transfer in Anoxic Environments. AB - The study of horizontal gene transfer (HGT) in microbial communities has been revolutionized by significant advances in cultivation-independent methods based on fluorescence reporter gene technologies. Recently, the combination of these novel approaches with flow cytometry has presented itself as one of the most powerful tools to study the spread of mobile genetic elements (MGEs) in the environment. However, the use of fluorescent markers, like green fluorescent protein (GFP) and mCherry, is limited by environmental constraints, such as oxygen availability and pH levels, that affect the correct maturation of their fluorophores. Few studies have characterized the effects of such environmental conditions in a systematic way, and the sheer amount of distinct protein variants requires each system to be examined in an individual fashion. The lack of efficient and reliable markers to monitor HGT in anaerobic environments, coupled to the abundance of ecologically and clinically relevant oxygen-deprived niches in which bacteria thrive, calls for the urgent development of suitable tools that permit its study. In an attempt to devise a process that allows the implementation of the mentioned dual-labeling system to anoxic milieus, the aerobic fluorescence recovery of mCherry and GFPmut3, as well as the effect of pH on their fluorescence intensities, was studied. The findings present a solution to an intrinsic problem that has long hampered the utilization of this system, highlight its pH limitations, and provide experimental tools that will help broaden its horizon of application to other fields.IMPORTANCE Many anaerobic environments, like the gastrointestinal tract, anaerobic digesters, and the interiors of dense biofilms, have been shown to be hotspots for horizontal gene transfer (HGT). Despite the increasing wealth of reports warning about the alarming spread of antibiotic resistance determinants, to date, HGT studies mainly rely on cultivation-based methods. Unfortunately, the relevance of these studies is often questionable, as only a minor fraction of bacteria can be cultivated. A recently developed approach to monitoring the fate of plasmids in microbial communities is based on a fluorescence dual-labeling system and allows the bypassing of cultivation. However, the fluorescent proteins on which it is founded are constrained by pH levels and by their strict dependence on oxygen for the maturation of their fluorophores. This study focused on the development and validation of an appropriate aerobic fluorescence recovery (AFR) method for this platform, as this embodies the missing technical link impeding its implementation in anoxic environments. PMID- 29330183 TI - Campylobacter jejuni Colonization in the Crow Gut Involves Many Deletions within the Cytolethal Distending Toxin Gene Cluster. AB - Campylobacter spp. are major causes of gastroenteritis worldwide. The virulence potential of Campylobacter shed in crow feces obtained from a roost area in Bothell, Washington, was studied and compared with that from isolates from other parts of Washington and from a different crow species 7,000 miles away in Kolkata, India. Campylobacter organisms were isolated from 61% and 69% of the fecal samples obtained from Washington and Kolkata, respectively, and were confirmed to be C. jejuni The cytolethal distending toxin (CDT) gene cluster from these isolates revealed a truncated sequence of approximately 1,350 bp. Sequencing of the gene cluster revealed two types of mutations: a 668-bp deletion across cdtA and cdtB and a 51-bp deletion within cdtB Some strains had additional 20-bp deletions in cdtB In either case, a functional toxin is not expected; a functional toxin is produced by the expression of three tandem genes, cdtA, cdtB, and cdtC Reverse transcriptase PCR with total RNA extracted from the isolates showed no expression of cdtB A toxin assay performed with these isolates on HeLa cells failed to show cytotoxic effects on the cells. However, the isolates were able to colonize the chicken ceca for a period of at least 4 weeks, similar to that of a clinical isolate. Other virulence gene markers, flagellin A and CadF, were present in 100% of the isolates. Our study suggests that crows carry the bacterium C. jejuni but with a dysfunctional toxin protein that is expected to drastically reduce its potential to cause diarrhea.IMPORTANCE Campylobacters are a major cause of gastroenteritis in humans. Since outbreaks have most often been correlated with poultry or unpasteurized dairy products, contact with farm animals, or contaminated water, historically, the majority of the studies have been with campylobacter isolates from poultry, domestic animals, and human patients. However, the bacterium has a broad host range that includes birds. These reservoirs need to be investigated, because the identification of the source and a determination of the transmission routes for a pathogen are important for the development of evidence-based disease control programs. In this study, two species of the human-commensal crow, from two different geographical regions separated by 7,000 miles of land and water, have been examined for their ability to cause disease by shedding campylobacters. Our results show that the crow may not play a significant role in campylobacteriosis, because the campylobacter organisms they shed produce a nonfunctional toxin. PMID- 29330184 TI - Microbiomes in Dishwashers: Analysis of the microbial diversity and putative opportunistic pathogens in dishwasher biofilm communities. AB - Extreme habitats are not only limited to natural environments, but also apply to man-made systems, for instance household appliances such as dishwashers. Limiting factors, such as high temperatures, high and low pH, high NaCl concentrations, presence of detergents and shear force from water during washing cycles define the microbial survival in this extreme system. Fungal and bacterial diversity in biofilms isolated from rubber seals of 24 different household dishwashers were investigated using next generation sequencing. Bacterial genera such as Pseudomonas, Escherichia and Acinetobacter, known to include opportunistic pathogens, were represented in most samples. The most frequently encountered fungal genera in these samples belonged to Candida, Cryptococcus and Rhodotorula, also known to include opportunistic pathogenic representatives. This study showed how specific conditions of the dishwashers impact the abundance of microbial groups, and investigated on the inter- and intra-kingdom interactions that shape these biofilms. The age, the usage frequency and hardness of incoming tap water of dishwashers had significant impact on bacterial and fungal composition. Representatives of Candida spp. were found at highest prevalence (100%) in all dishwashers and are assumingly one of the first colonizers in recent dishwashers. Pairwise correlations in tested microbiome showed that certain bacterial groups co-occur and so did the fungal groups. In mixed bacterial-fungal biofilms, early adhesion, contact and interactions were vital in the process of biofilm formation, where mixed complexes of the two, bacteria and fungi, could provide a preliminary biogenic structure for the establishment of these biofilms.IMPORTANCE Worldwide demand for household appliances, such as dishwashers and washing machines, is increasing, as well as the number of immune-compromised individuals. The harsh conditions in household dishwashers should prevent growth of most microorganisms. However, our research shows that persisting poly-extremotolerant groups of microorganisms in household appliances are well established under these unfavourable conditions, supported by the biofilm mode of growth. The significance of our research is in identifying the microbial composition of biofilms formed on dishwasher rubber seals, how diverse abiotic conditions affects microbiota and which key members were represented in early colonisation and contamination of dishwashers, as these appliances can present a source of domestic cross-contamination leading to broader medical impacts. PMID- 29330185 TI - MgtE Homolog FicI Acts as a Secondary Ferrous Iron Importer in Shewanella oneidensis Strain MR-1. AB - The transport of metals into and out of cells is necessary for the maintenance of appropriate intracellular concentrations. Metals are needed for incorporation into metalloproteins but become toxic at higher concentrations. Many metal transport proteins have been discovered in bacteria, including the Mg2+ transporter E (MgtE) family of passive Mg2+/Co2+ cation-selective channels. Low sequence identity exists between members of the MgtE family, indicating that substrate specificity may differ among MgtE transporters. Under anoxic conditions, dissimilatory metal-reducing bacteria, such as Shewanella and Geobacter species, are exposed to high levels of soluble metals, including Fe2+ and Mn2+ Here we characterize SO_3966, which encodes an MgtE homolog in Shewanella oneidensis that we name FicI (ferrous iron and cobalt importer) based on its role in maintaining metal homeostasis. A SO_3966 deletion mutant exhibits enhanced growth over that of the wild type under conditions with high Fe2+ or Co2+ concentrations but exhibits wild-type Mg2+ transport and retention phenotypes. Conversely, deletion of feoB, which encodes an energy-dependent Fe2+ importer, causes a growth defect under conditions of low Fe2+ concentrations but not high Fe2+ concentrations. We propose that FicI represents a secondary, less energy-dependent mechanism for iron uptake by S. oneidensis under high Fe2+ concentrations.IMPORTANCEShewanella oneidensis MR-1 is a target of microbial engineering for potential uses in biotechnology and the bioremediation of heavy metal-contaminated environments. A full understanding of the ways in which S. oneidensis interacts with metals, including the means by which it transports metal ions, is important for optimal genetic engineering of this and other organisms for biotechnology purposes such as biosorption. The MgtE family of metal importers has been described previously as Mg2+ and Co2+ transporters. This work broadens that designation with the discovery of an MgtE homolog in S. oneidensis that imports Fe2+ but not Mg2+ The research presented here also expands our knowledge of the means by which microorganisms have adapted to take up essential nutrients such as iron under various conditions. PMID- 29330186 TI - Effect of Plasmid Design and Type of Integration Event on Recombinant Protein Expression in Pichia pastoris. AB - Pichia pastoris (syn. Komagataella phaffii) is one of the most common eukaryotic expression systems for heterologous protein production. Expression cassettes are typically integrated in the genome to obtain stable expression strains. In contrast to Saccharomyces cerevisiae, where short overhangs are sufficient to target highly specific integration, long overhangs are more efficient in P. pastoris and ectopic integration of foreign DNA can occur. Here, we aimed to elucidate the influence of ectopic integration by high-throughput screening of >700 transformants and whole-genome sequencing of 27 transformants. Different vector designs and linearization approaches were used to mimic the most common integration events targeted in P. pastoris Fluorescence of an enhanced green fluorescent protein (eGFP) reporter protein was highly uniform among transformants when the expression cassettes were correctly integrated in the targeted locus. Surprisingly, most nonspecifically integrated transformants showed highly uniform expression that was comparable to specific integration, suggesting that nonspecific integration does not necessarily influence expression. However, a few clones (<10%) harboring ectopically integrated cassettes showed a greater variation spanning a 25-fold range, surpassing specifically integrated reference strains up to 6-fold. High-expression strains showed a correlation between increased gene copy numbers and high reporter protein fluorescence levels. Our results suggest that for comparing expression levels between strains, the integration locus can be neglected as long as a sufficient numbers of transformed strains are compared. For expression optimization of highly expressible proteins, increasing copy number appears to be the dominant positive influence rather than the integration locus, genomic rearrangements, deletions, or single-nucleotide polymorphisms (SNPs).IMPORTANCE Yeasts are commonly used as biotechnological production hosts for proteins and metabolites. In the yeast Saccharomyces cerevisiae, expression cassettes carrying foreign genes integrate highly specifically at the targeted sites in the genome. In contrast, cassettes often integrate at random genomic positions in nonconventional yeasts, such as Pichia pastoris (syn. Komagataella phaffii). Hence, cells from the same transformation event often behave differently, with significant clonal variation necessitating the screening of large numbers of strains. The importance of this study is that we systematically investigated the influence of integration events in more than 700 strains. Our findings provide novel insight into clonal variation in P. pastoris and, thus, how to avoid pitfalls and obtain reliable results. The underlying mechanisms may also play a role in other yeasts and hence could be generally relevant for recombinant yeast protein production strains. PMID- 29330187 TI - Acquisition of a Novel Sulfur-Oxidizing Symbiont in the Gutless Marine Worm Inanidrilus exumae. AB - Gutless phallodrilines are marine annelid worms without a mouth or gut, which live in an obligate association with multiple bacterial endosymbionts that supply them with nutrition. In this study, we discovered an unusual symbiont community in the gutless phallodriline Inanidrilus exumae that differs markedly from the microbiomes of all 22 of the other host species examined. Comparative 16S rRNA gene sequence analysis and fluorescence in situ hybridization revealed that I. exumae harbors cooccurring gamma-, alpha-, and deltaproteobacterial symbionts, while all other known host species harbor gamma- and either alpha- or deltaproteobacterial symbionts. Surprisingly, the primary chemoautotrophic sulfur oxidizer "Candidatus Thiosymbion" that occurs in all other gutless phallodriline hosts does not appear to be present in I. exumae Instead, I. exumae harbors a bacterial endosymbiont that resembles "Ca Thiosymbion" morphologically and metabolically but originates from a novel lineage within the class Gammaproteobacteria This endosymbiont, named Gamma 4 symbiont here, had a 16S rRNA gene sequence that differed by at least 7% from those of other free-living and symbiotic bacteria and by 10% from that of "Ca Thiosymbion." Sulfur globules in the Gamma 4 symbiont cells, as well as the presence of genes characteristic for autotrophy (cbbL) and sulfur oxidation (aprA), indicate that this symbiont is a chemoautotrophic sulfur oxidizer. Our results suggest that a novel lineage of free-living bacteria was able to establish a stable and specific association with I. exumae and appears to have displaced the "Ca Thiosymbion" symbionts originally associated with these hosts.IMPORTANCE All 22 gutless marine phallodriline species examined to date live in a highly specific association with endosymbiotic, chemoautotrophic sulfur oxidizers called "Ca Thiosymbion." These symbionts evolved from a single common ancestor and represent the ancestral trait for this host group. They are transmitted vertically and assumed to be in transition to becoming obligate endosymbionts. It is therefore surprising that despite this ancient, evolutionary relationship between phallodriline hosts and "Ca Thiosymbion," these symbionts are apparently no longer present in Inanidrilus exumae They appear to have been displaced by a novel lineage of sulfur-oxidizing bacteria only very distantly related to "Ca Thiosymbion." Thus, this study highlights the remarkable plasticity of both animals and bacteria in establishing beneficial associations: the phallodriline hosts were able to acquire and maintain symbionts from two very different lineages of bacteria, while sulfur oxidizing bacteria from two very distantly related lineages were able to independently establish symbiotic relationships with phallodriline hosts. PMID- 29330188 TI - Germination, Outgrowth, and Vegetative-Growth Kinetics of Dry-Heat-Treated Individual Spores of Bacillus Species. AB - DNA damage kills dry-heated spores of Bacillus subtilis, but dry-heat-treatment effects on spore germination and outgrowth have not been studied. This is important, since if dry-heat-killed spores germinate and undergo outgrowth, toxic proteins could be synthesized. Here, Raman spectroscopy and differential interference contrast microscopy were used to study germination and outgrowth of individual dry-heat-treated B. subtilis and Bacillus megaterium spores. The major findings in this work were as follows: (i) spores dry-heat-treated at 140 degrees C for 20 min lost nearly all viability but retained their Ca2+-dipicolinic acid (CaDPA) depot; (ii) in most cases, dry-heat treatment increased the average times and variability of all major germination events in B. subtilis spore germination with nutrient germinants or CaDPA, and in one nutrient germination event with B. megaterium spores; (iii) B. subtilis spore germination with dodecylamine, which activates the spore CaDPA release channel, was unaffected by dry-heat treatment; (iv) these results indicate that dry-heat treatment likely damages spore proteins important in nutrient germinant recognition and cortex peptidoglycan hydrolysis, but not CaDPA release itself; and (v) analysis of single spores incubated on nutrient-rich agar showed that while dry-heat-treated spores that are dead can complete germination, they cannot proceed into outgrowth and thus not to vegetative growth. The results of this study provide new information on the effects of dry heat on bacterial spores and indicate that dry-heat sterilization regimens should produce spores that cannot outgrow and thus cannot synthesize potentially dangerous proteins.IMPORTANCE Much research has shown that high temperature dry heat is a promising means for the inactivation of spores on medical devices and spacecraft decontamination. Dry heat is known to kill Bacillus subtilis spores by DNA damage. However, knowledge about the effects of dry-heat treatment on spore germination and outgrowth is limited, especially at the single spore level. In the current work, Raman spectroscopy and differential interference contrast microscopy were used to analyze CaDPA levels in and kinetics of nutrient- and non-nutrient germination of multiple individual dry heat-treated B. subtilis and Bacillus megaterium spores that were largely dead. The outgrowth and subsequent cell division of these germinated but dead dry-heat treated spores were also examined. The knowledge obtained in this study will help understand the effects of dry heat on spores both on Earth and in space, and indicates that dry heat can be safely used for sterilization purposes. PMID- 29330189 TI - Targeted Synthesis and Characterization of a Gene Cluster Encoding NAD(P)H Dependent 3alpha-, 3beta-, and 12alpha-Hydroxysteroid Dehydrogenases from Eggerthella CAG:298, a Gut Metagenomic Sequence. AB - Gut metagenomic sequences provide a rich source of microbial genes, the majority of which are annotated by homology or unknown. Genes and gene pathways that encode enzymes catalyzing biotransformation of host bile acids are important to identify in gut metagenomic sequences due to the importance of bile acids in gut microbiome structure and host physiology. Hydroxysteroid dehydrogenases (HSDHs) are pyridine nucleotide-dependent enzymes with stereospecificity and regiospecificity for bile acid and steroid hydroxyl groups. HSDHs have been identified in several protein families, including medium-chain and short-chain dehydrogenase/reductase families as well as the aldo-keto reductase family. These protein families are large and contain diverse functionalities, making prediction of HSDH-encoding genes difficult and necessitating biochemical characterization. We located a gene cluster in Eggerthella sp. CAG:298 predicted to encode three HSDHs (CDD59473, CDD59474, and CDD59475) and synthesized the genes for heterologous expression in Escherichia coli We then screened bile acid substrates against the purified recombinant enzymes. CDD59475 is a novel 12alpha-HSDH, and we determined that CDD59474 (3alpha-HSDH) and CDD59473 (3beta-HSDH) constitute novel enzymes in an iso-bile acid pathway. Phylogenetic analysis of these HSDHs with other gut bacterial HSDHs and closest homologues in the database revealed predictable clustering of HSDHs by function and identified several likely HSDH sequences from bacteria isolated or sequenced from diverse mammalian and avian gut samples.IMPORTANCE Bacterial HSDHs have the potential to significantly alter the physicochemical properties of bile acids, with implications for increased/decreased toxicity for gut bacteria and the host. The generation of oxo bile acids is known to inhibit host enzymes involved in glucocorticoid metabolism and may alter signaling through nuclear receptors such as farnesoid X receptor and G-protein-coupled receptor TGR5. Biochemical or similar approaches are required to fill in many gaps in our ability to link a particular enzymatic function with a nucleic acid or amino acid sequence. In this regard, we have identified a novel 12alpha-HSDH and a novel set of genes encoding an iso-bile acid pathway (3alpha-HSDH and 3beta-HSDH) involved in epimerization and detoxification of harmful secondary bile acids. PMID- 29330190 TI - Influence of pig farming on the human's nasal microbiota: The key role of the airborne microbial communities. AB - It has been hypothesized that the environment can influence the composition of the nasal microbiota. However, the direct influence of pig farming on the anterior and posterior nasal microbiota is unknown. Using a cross-sectional design, pig farms (n=28) were visited in 2014-2015 and nasal swabs from 43 pig farmers and 56 pigs as well as 27 air samples taken in the vicinity of pig enclosure were collected. As controls, nasal swabs from 17 cow farmers and 26 non animal exposed individuals were also included. Analyses of the microbiota were performed based on 16S rRNA amplicon sequencing and the DADA2 pipeline to define sequence variants (SVs). We found that pig farming is strongly associated with specific microbial signatures (including alpha- and beta-diversity), which are reflected in the microbiota of the human nose. Furthermore, the microbial communities were more similar within the same farm as compared to between the different farms, indicating a specific microbiota pattern for each pig farm. In total, there were 82 SVs that occurred significantly more abundantly in samples from pig farms than from cow farmers and non-exposed (i.e. the core pig farm microbiota). Of those, nine SVs were significantly associated with the posterior part of the humans' nose. The results strongly indicate that pig farming is associated with a distinct human nose microbiota. Finally, the community structures derived by the DADA2 pipeline showed an excellent agreement with the outputs of the mothur pipeline which was revealed by procrustes analyses.Importance The knowledge about the influence of animal keeping on the human microbiome is important. Previous research shows that pets are significantly affecting the microbial communities of humans. However, the effect of animal farming on the human microbiome is less clear although it is known that the air in farms, and in particular pig farms, is charged with high amounts of dust, bacteria and fungi. In this study we have simultaneously investigated the nasal microbiota of pigs, humans and the environment in pig farms. We reveal an enormous impact of pig farming on the human nasal microbiota which is far more pronounced as compared to cow farming. In addition, we have analyzed the airborne microbiota and found significant associations suggesting an animal-human transmission of the microbiota within pig farms. We also reveal that microbial patterns are farm-specific suggesting that the environment influences animals and humans in a similar manner. PMID- 29330192 TI - NHS data show A&E patients waiting longer and big rise in GP flu consultations. PMID- 29330191 TI - Thermophilic Alkaline Fermentation Followed by Mesophilic Anaerobic Digestion for Efficient Hydrogen and Methane Production from Waste-Activated Sludge: Dynamics of Bacterial Pathogens as Revealed by the Combination of Metagenomic and Quantitative PCR Analyses. AB - Thermophilic alkaline fermentation followed by mesophilic anaerobic digestion (TM) for hydrogen and methane production from waste-activated sludge (WAS) was investigated. The TM process was also compared to a process with mesophilic alkaline fermentation followed by a mesophilic anaerobic digestion (MM) and one stage mesophilic anaerobic digestion (M) process. The results showed that both hydrogen yield (74.5 ml H2/g volatile solids [VS]) and methane yield (150.7 ml CH4/g VS) in the TM process were higher than those (6.7 ml H2/g VS and 127.8 ml CH4/g VS, respectively) in the MM process. The lowest methane yield (101.2 ml CH4/g VS) was obtained with the M process. Taxonomic results obtained from metagenomic analysis showed that different microbial community compositions were established in the hydrogen reactors of the TM and MM processes, which also significantly changed the microbial community compositions in the following methane reactors compared to that with the M process. The dynamics of bacterial pathogens were also evaluated. For the TM process, the reduced diversity and total abundance of bacterial pathogens in WAS were observed in the hydrogen reactor and were further reduced in the methane reactor, as revealed by metagenomic analysis. The results also showed not all bacterial pathogens were reduced in the reactors. For example, Collinsella aerofaciens was enriched in the hydrogen reactor, which was also confirmed by quantitative PCR (qPCR) analysis. The study further showed that qPCR was more sensitive for detecting bacterial pathogens than metagenomic analysis. Although there were some differences in the relative abundances of bacterial pathogens calculated by metagenomic and qPCR approaches, both approaches demonstrated that the TM process was more efficient for the removal of bacterial pathogens than the MM and M processes.IMPORTANCE This study developed an efficient process for bioenergy (H2 and CH4) production from WAS and elucidates the dynamics of bacterial pathogens in the process, which is important for the utilization and safe application of WAS. The study also made an attempt to combine metagenomic and qPCR analyses to reveal the dynamics of bacterial pathogens in anaerobic processes, which could overcome the limitations of each method and provide new insights regarding bacterial pathogens in environmental samples. PMID- 29330193 TI - Structure of the human myostatin precursor and determinants of growth factor latency. AB - Myostatin, a key regulator of muscle mass in vertebrates, is biosynthesised as a latent precursor in muscle and is activated by sequential proteolysis of the pro domain. To investigate the molecular mechanism by which pro-myostatin remains latent, we have determined the structure of unprocessed pro-myostatin and analysed the properties of the protein in its different forms. Crystal structures and SAXS analyses show that pro-myostatin adopts an open, V-shaped structure with a domain-swapped arrangement. The pro-mature complex, after cleavage of the furin site, has significantly reduced activity compared with the mature growth factor and persists as a stable complex that is resistant to the natural antagonist follistatin. The latency appears to be conferred by a number of distinct features that collectively stabilise the interaction of the pro-domains with the mature growth factor, enabling a regulated stepwise activation process, distinct from the prototypical pro-TGF-beta1. These results provide a basis for understanding the effect of missense mutations in pro-myostatin and pave the way for the design of novel myostatin inhibitors. PMID- 29330194 TI - Telotristat ethyl in carcinoid syndrome: safety and efficacy in the TELECAST phase 3 trial. AB - Telotristat ethyl, a tryptophan hydroxylase inhibitor, was efficacious and well tolerated in the phase 3 TELESTAR study in patients with carcinoid syndrome (CS) experiencing >=4 bowel movements per day (BMs/day) while on somatostatin analogs (SSAs). TELECAST, a phase 3 companion study, assessed the safety and efficacy of telotristat ethyl in patients with CS (diarrhea, flushing, abdominal pain, nausea or elevated urinary 5-hydroxyindoleacetic acid (u5-HIAA)) with <4 BMs/day on SSAs (or >=1 symptom or >=4 BMs/day if not on SSAs) during a 12-week double-blind treatment period followed by a 36-week open-label extension (OLE). The primary safety and efficacy endpoints were incidence of treatment-emergent adverse events (TEAEs) and percent change from baseline in 24-h u5-HIAA at week 12. Patients (N = 76) were randomly assigned (1:1:1) to receive placebo or telotristat ethyl 250 mg or 500 mg 3 times per day (tid); 67 continued receiving telotristat ethyl 500 mg tid during the OLE. Through week 12, TEAEs were generally mild to moderate in severity; 5 (placebo), 1 (telotristat ethyl 250 mg) and 3 (telotristat ethyl 500 mg) patients experienced serious events, and the rate of TEAEs in the OLE was comparable. At week 12, significant reductions in u5-HIAA from baseline were observed, with Hodges-Lehmann estimators of median treatment differences from placebo of -54.0% (95% confidence limits, -85.0%, -25.1%, P < 0.001) and -89.7% (95% confidence limits, -113.1%, -63.9%, P < 0.001) for telotristat ethyl 250 mg and 500 mg. These results support the safety and efficacy of telotristat ethyl when added to SSAs in patients with CS diarrhea (ClinicalTrials.gov identifier: Nbib2063659). PMID- 29330195 TI - DICER1 gene mutations in endocrine tumors. AB - In this review, the importance of the DICER1 gene in the function of endocrine cells is discussed. There is conclusive evidence that DICER1 mutations play a crucial role in the development, progression, cell proliferation, therapeutic responsiveness and behavior of several endocrine tumors. We review the literature of DICER1 gene mutations in thyroid, parathyroid, pituitary, pineal gland, endocrine pancreas, paragangliomas, medullary, adrenocortical, ovarian and testicular tumors. Although significant progress has been made during the last few years, much more work is needed to fully understand the significance of DICER1 mutations. PMID- 29330197 TI - Diplomatic impasse prevents cardiologists from attending conference in Qatar. PMID- 29330196 TI - Higher prevalence of lymph node metastasis in prostate cancer in patients with diabetes. PMID- 29330198 TI - Systematic review of drowning in India: assessment of burden and risk. AB - AIM: To examine the burden and risk factors for fatal and non-fatal drowning in India. METHODS: Relevant literature was identified through a systematic search of 19 electronic databases and 19 national and global, institutional, organisational and government sources of injury data. Search terms used pertained to drowning, injury, trauma, morbidity and mortality in India. RESULTS: A total of 16 research articles and five data sources were included in the review. Three national data sources provided counts of drowning deaths, reporting a range of 1348-62 569 drowning deaths per year. A further three national data sources provided information on drowning-related morbidity; however, each source presented different outcome measures making comparison difficult. Ten research studies investigated risk factors associated with drowning in India. Key risk factors reported were male gender, young age (0-5 years) and individuals residing in the North-Eastern part of the country who have high exposure to water sources within community settings. CONCLUSION: Drowning-related morbidity and mortality have a significant impact on India, with risk factors identified for this setting similar to those within other low-income and middle-income countries. Regional data which look beyond routinely collected data are required to accurately investigate the burden and impact of drowning, to inform targeted, context specific approaches for drowning reduction initiatives. PMID- 29330199 TI - Association between community socioeconomic characteristics and access to youth flag football. AB - BACKGROUND: The American Academy of Pediatrics has recommended that opportunities for non-tackling American football (e.g., flag football) be expanded, given concerns about the risks of brain trauma from tackle football. This study tested the hypothesis that flag football would be more accessible in communities characterised by higher socioeconomic status residents. METHODS: In July 2017, the locations of community-based organisations offering youth flag and tackle football for youth between the ages of 6 and 13 in two US states (Georgia and Washington) were aggregated (n=440). Organisations were coded in terms of the availability of tackle and/or flag football teams for youth at each year of age between 6 and 13. Multivariate logistic regression analyses were used to assess the odds of a community-based football organisation offering flag football, by community socioeconomic and demographic characteristics. RESULTS: In both states, communities with more educated residents were more likely to offer flag football for youth aged 6-12. For example, among 6 year-olds every 10% increase in the number of adult residents with a college education was associated with 1.51 times the odds of flag football availability (95% CI 1.22 to 1.86, P<0.001). CONCLUSION: These results suggest that youth living in communities characterised by low educational attainment are less likely than other youth to have the option of a lower contact alternative to tackle football. Relying on voluntary community level adoption of lower contact alternatives to tackle football may result in inequitable access to such sport options. This may contribute to an inequitable burden of brain trauma from youth sport. PMID- 29330201 TI - CORRECTION. PMID- 29330200 TI - PWWP-DOMAIN INTERACTOR OF POLYCOMBS1 Interacts with Polycomb-Group Proteins and Histones and Regulates Arabidopsis Flowering and Development. AB - Polycomb-group (PcG) proteins mediate epigenetic gene regulation by setting H3K27me3 via Polycomb Repressive Complex 2 (PRC2). In plants, it is largely unclear how PcG proteins are recruited to their target genes. Here, we identified the PWWP-DOMAIN INTERACTOR OF POLYCOMBS1 (PWO1) protein, which interacts with all three Arabidopsis thaliana PRC2 histone methyltransferases and is required for maintaining full H3 occupancy at several Arabidopsis genes. PWO1 localizes and recruits CURLY LEAF to nuclear speckles in Nicotiana benthamiana nuclei, suggesting a role in spatial organization of PcG regulation. PWO1 belongs to a gene family with three members having overlapping activities: pwo1 pwo2 pwo3 triple mutants are seedling lethal and show shoot and root meristem arrest, while pwo1 single mutants are early flowering. Interestingly, the PWWP domain of PWO1 confers binding to histones, which is reduced by a point mutation in a highly conserved residue of this domain and blocked by phosphorylation of H3S28. PWO1 carrying this mutation is not able to fully complement the pwo1 pwo2 pwo3 triple mutant, indicating the requirement of this domain for PWO1 in vivo activity. Thus, the PWO family may present a novel class of histone readers that are involved in recruiting PcG proteins to subnuclear domains and in promoting Arabidopsis development. PMID- 29330202 TI - High-Risk TP53 Mutations Are Associated with Extranodal Extension in Oral Cavity Squamous Cell Carcinoma. AB - Purpose: Development of extranodal extension (ENE) has been associated with poor survival in patients with oral cavity squamous cell carcinoma (OSCC). Here, we sought to confirm the role of ENE as a poor prognostic factor, and identify genomic and epigenetic markers of ENE in order to develop a predictive model and improve treatment selection.Experimental Design: An institutional cohort (The University of Texas MD Anderson Cancer Center) was utilized to confirm the impact of ENE on clinical outcomes and evaluate the genomic signature of primary and ENE containing tissue. OSCC data from The Cancer Genome Atlas (TCGA) were analyzed for the presence of molecular events associated with nodal and ENE status.Results: ENE was associated with decreased overall and disease-free survival. Mutation of the TP53 gene was the most common event in ENE+ OSCC. The frequency of TP53 mutation in ENE+ tumors was higher compared with ENE- tumors and wild-type (WT) TP53 was highly represented in pN0 tumors. pN+ENE+ patients had the highest proportion of high-risk TP53 mutations. Both primary tumors (PT) and lymph nodes with ENE (LN) exhibited a high rate of TP53 mutations (58.8% and 58.8%, respectively) with no significant change in allele frequency between the two tissue sites.Conclusions: ENE is one of the most significant markers of OSCC OS and DFS. There is a shift toward a more aggressive biological phenotype associated with high-risk mutations of the TP53 gene. Prospective clinical trials are required to determine whether TP53 mutational status can be used for personalized treatment decisions. Clin Cancer Res; 24(7); 1727-33. (c)2018 AACR. PMID- 29330203 TI - Personalized RNA Medicine for Pancreatic Cancer. AB - Purpose: Since drug responses vary between patients, it is crucial to develop pre clinical or co-clinical strategies that forecast patient response. In this study, we tested whether RNA-based therapeutics were suitable for personalized medicine by using patient-derived-organoid (PDO) and patient-derived-xenograft (PDX) models.Experimental Design: We performed microRNA (miRNA) profiling of PDX samples to determine the status of miRNA deregulation in individual pancreatic ductal adenocarcinoma (PDAC) patients. To deliver personalized RNA-based-therapy targeting oncogenic miRNAs that form part of this common PDAC miRNA over expression signature, we packaged antimiR oligonucleotides against one of these miRNAs in tumor-penetrating nanocomplexes (TPN) targeting cell surface proteins on PDAC tumors.Results: As a validation for our pre-clinical strategy, the therapeutic potential of one of our nano-drugs, TPN-21, was first shown to decrease tumor cell growth and survival in PDO avatars for individual patients, then in their PDX avatars.Conclusions: This general approach appears suitable for co-clinical validation of personalized RNA medicine and paves the way to prospectively identify patients with eligible miRNA profiles for personalized RNA based therapy. Clin Cancer Res; 24(7); 1734-47. (c)2018 AACR. PMID- 29330204 TI - Pazopanib Exposure Relationship with Clinical Efficacy and Safety in the Adjuvant Treatment of Advanced Renal Cell Carcinoma. AB - Purpose: PROTECT, a phase III, randomized, placebo-controlled study, evaluated pazopanib efficacy and safety in the adjuvant renal cell carcinoma setting. The relationship between pazopanib exposure (Ctrough) and efficacy and safety was evaluated.Patients and Methods: Evaluable steady-state blood trough concentrations were collected from 311 patients at week 3 or 5 (early Ctrough) and 250 patients at week 16 or 20 (late Ctrough). Pazopanib pharmacokinetic (PK) data were analyzed via a population model approach. Relationship between Ctrough or dose intensity and disease-free survival (DFS) was explored via Kaplan-Meier and multivariate analysis. Adverse events (AE) and AE-related treatment discontinuation proportions were summarized by Ctrough quartiles.Results: Most (>90%) patients with early or late Ctrough data started on 600 mg. Mean early and late Ctrough overlapped across dose levels. Patients with higher early Ctrough quartiles achieved longer DFS (adjusted HR, 0.58; 95% confidence interval, 0.42 0.82; P = 0.002). Patients achieving early or late Ctrough >20.5 MUg/mL had significantly longer DFS: not estimable (NE) versus 29.5 months, P = 0.006, and NE versus 29.9 months, P = 0.008, respectively. Dose intensity up to week 8 did not correlate with DFS, consistent with population PK model-based simulations showing overlapping pazopanib exposure with 600 and 800 mg doses. The proportion of AE-related treatment discontinuation and grade 3/4 AEs, with the exception of hypertension, was not correlated to CtroughConclusions: In the adjuvant setting, higher pazopanib Ctrough was associated with improved DFS and did not increase treatment discontinuations or grade 3/4 AEs, with the exception of hypertension. Clin Cancer Res; 24(13); 3005-13. (c)2018 AACRSee related commentary by Rini, p. 2979. PMID- 29330205 TI - Clinical Utility of a STAT3-Regulated miRNA-200 Family Signature with Prognostic Potential in Early Gastric Cancer. AB - Purpose: The majority of gastric cancer patients are diagnosed with late-stage disease, for which distinct molecular subtypes have been identified that are potentially amenable to targeted therapies. However, there exists no molecular classification system with prognostic power for early-stage gastric cancer (EGC) because the molecular events promoting gastric cancer initiation remain ill defined.Experimental Design: miRNA microarrays were performed on gastric tissue from the gp130F/F preclinical EGC mouse model, prior to tumor initiation. Computation prediction algorithms were performed on multiple data sets and independent gastric cancer patient cohorts. Quantitative real-time PCR expression profiling was undertaken in gp130F/F-based mouse strains and human gastric cancer cells genetically engineered for suppressed activation of the oncogenic latent transcription factor STAT3. Human gastric cancer cells with modulated expression of the miR-200 family member miR-429 were also assessed for their proliferative response.Results: Increased expression of miR-200 family members is associated with both tumor initiation in a STAT3-dependent manner in gp130F/F mice and EGC (i.e., stage IA) in patient cohorts. Overexpression of miR-429 also elicited contrasting pro- and antiproliferative responses in human gastric cancer cells depending on their cellular histologic subtype. We also identified a miR-200 family-regulated 15-gene signature that integrates multiple key current indicators of EGC, namely tumor invasion depth, differentiation, histology, and stage, and provides superior predictive power for overall survival compared with each EGC indicator alone.Conclusions: Collectively, our discovery of a STAT3 regulated, miR-200 family-associated gene signature specific for EGC, with predictive power, provides a molecular rationale to classify and stratify EGC patients for endoscopic treatment. Clin Cancer Res; 24(6); 1459-72. (c)2018 AACR. PMID- 29330206 TI - Evolution of Cytogenetically Normal Acute Myeloid Leukemia During Therapy and Relapse: An Exome Sequencing Study of 50 Patients. AB - Purpose: To study mechanisms of therapy resistance and disease progression, we analyzed the evolution of cytogenetically normal acute myeloid leukemia (CN-AML) based on somatic alterations.Experimental Design: We performed exome sequencing of matched diagnosis, remission, and relapse samples from 50 CN-AML patients treated with intensive chemotherapy. Mutation patterns were correlated with clinical parameters.Results: Evolutionary patterns correlated with clinical outcome. Gain of mutations was associated with late relapse. Alterations of epigenetic regulators were frequently gained at relapse with recurring alterations of KDM6A constituting a mechanism of cytarabine resistance. Low KDM6A expression correlated with adverse clinical outcome, particularly in male patients. At complete remission, persistent mutations representing preleukemic lesions were observed in 48% of patients. The persistence of DNMT3A mutations correlated with shorter time to relapse.Conclusions: Chemotherapy resistance might be acquired through gain of mutations. Insights into the evolution during therapy and disease progression lay the foundation for tailored approaches to treat or prevent relapse of CN-AML. Clin Cancer Res; 24(7); 1716-26. (c)2018 AACR. PMID- 29330207 TI - Early Assessment of Lung Cancer Immunotherapy Response via Circulating Tumor DNA. AB - Purpose: Decisions to continue or suspend therapy with immune checkpoint inhibitors are commonly guided by tumor dynamics seen on serial imaging. However, immunotherapy responses are uniquely challenging to interpret because tumors often shrink slowly or can appear transiently enlarged due to inflammation. We hypothesized that monitoring tumor cell death in real time by quantifying changes in circulating tumor DNA (ctDNA) levels could enable early assessment of immunotherapy efficacy.Experimental Design: We compared longitudinal changes in ctDNA levels with changes in radiographic tumor size and with survival outcomes in 28 patients with metastatic non-small cell lung cancer (NSCLC) receiving immune checkpoint inhibitor therapy. CtDNA was quantified by determining the allele fraction of cancer-associated somatic mutations in plasma using a multigene next-generation sequencing assay. We defined a ctDNA response as a >50% decrease in mutant allele fraction from baseline, with a second confirmatory measurement.Results: Strong agreement was observed between ctDNA response and radiographic response (Cohen's kappa, 0.753). Median time to initial response among patients who achieved responses in both categories was 24.5 days by ctDNA versus 72.5 days by imaging. Time on treatment was significantly longer for ctDNA responders versus nonresponders (median, 205.5 vs. 69 days; P < 0.001). A ctDNA response was associated with superior progression-free survival [hazard ratio (HR), 0.29; 95% CI, 0.09-0.89; P = 0.03], and superior overall survival (HR, 0.17; 95% CI, 0.05-0.62; P = 0.007).Conclusions: A drop in ctDNA level is an early marker of therapeutic efficacy and predicts prolonged survival in patients treated with immune checkpoint inhibitors for NSCLC. Clin Cancer Res; 24(8); 1872 80. (c)2018 AACR. PMID- 29330209 TI - Cognitive Computing to Guide Molecular-Based Therapy Selection: Steps Forward amid Abundant Need. PMID- 29330208 TI - Neuroendocrine Tumor Heterogeneity Adds Uncertainty to the World Health Organization 2010 Classification: Real-World Data from the Spanish Tumor Registry (R-GETNE). AB - BACKGROUND: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are a complex family of tumors of widely variable clinical behavior. The World Health Organization (WHO) 2010 classification provided a valuable tool to stratify neuroendocrine neoplasms (NENs) in three prognostic subgroups based on the proliferation index. However, substantial heterogeneity remains within these subgroups, and simplicity sometimes entails an ambiguous and imprecise prognostic stratification. The purpose of our study was to evaluate the prognostic impact of histological differentiation within the WHO 2010 grade (G) 1/G2/G3 categories, and explore additional Ki-67 cutoff values in GEP-NENs. SUBJECTS, MATERIALS, AND METHODS: A total of 2,813 patients from the Spanish National Tumor Registry (RGETNE) were analyzed. Cases were classified by histological differentiation as NETs (neuroendocrine tumors [well differentiated]) or NECs (neuroendocrine carcinomas [poorly differentiated]), and by Ki-67 index as G1 (Ki-67 <2%), G2 (Ki 67 3%-20%), or G3 (Ki-67 >20%). Patients were stratified into five cohorts: NET G1, NET-G2, NET-G3, NEC-G2, and NEC-G3. RESULTS: Five-year survival was 72%. Age, gender, tumor site, grade, differentiation, and stage were all independent prognostic factors for survival. Further subdivision of the WHO 2010 grading improved prognostic stratification, both within G2 (5-year survival: 81% [Ki-67 3%-5%], 72% [Ki-67 6%-10%], 52% [Ki-67 11%-20%]) and G3 NENs (5-year survival: 35% [Ki-67 21%-50%], 22% [Ki-67 51%-100%]). Five-year survival was significantly greater for NET-G2 versus NEC-G2 (75.5% vs. 58.2%) and NET-G3 versus NEC-G3 (43.7% vs. 25.4%). CONCLUSION: Substantial clinical heterogeneity is observed within G2 and G3 GEP-NENs. The WHO 2010 classification can be improved by including the additive effect of histological differentiation and the proliferation index. IMPLICATIONS FOR PRACTICE: Gastroenteropancreatic neuroendocrine neoplasms are tumors of widely variable clinical behavior, roughly stratified by the World Health Organization (WHO) 2010 classification into three subgroups based on proliferation index. Real-world data from 2,813 patients of the Spanish Registry RGETNE demonstrated substantial clinical heterogeneity within grade (G) 2 and G3 neuroendocrine neoplasms. Tumor morphology and further subdivision of grading substantially improves prognostic stratification of these patients and may help individualize therapy. This combined, additive effect shall be considered in future classifications of neuroendocrine tumors and incorporated for stratification purposes in clinical trials. PMID- 29330210 TI - Trastuzumab Plus Pertuzumab Resistance Does Not Preclude Response to Lapatinib Plus Trastuzumab in HER2-Amplified Colorectal Cancer. AB - Human epidermal growth factor 2 (HER2) amplification represents a distinct molecular subgroup of colorectal cancers that is associated with anti-epidermal growth factor receptor resistance and sensitivity to dual HER2 targeting. Although clinical trials have reported activity for trastuzumab/pertuzumab and trastuzumab/lapatinib combinations, there are no reports on lapatinib plus trastuzumab activity after resistance to trastuzumab plus pertuzumab. Presented are three cases of HER2 amplified colorectal cancer that developed acquired refractoriness to trastuzumab pertuzumab with subsequent clinical benefit to lapatinib plus trastuzumab, highlighting the potential for HER2 tyrosine kinase inhibition plus trastuzumab in overcoming trastuzumab/pertuzumab resistance. PMID- 29330211 TI - Olanzapine-Based Triple Regimens Versus Neurokinin-1 Receptor Antagonist-Based Triple Regimens in Preventing Chemotherapy-Induced Nausea and Vomiting Associated with Highly Emetogenic Chemotherapy: A Network Meta-Analysis. AB - BACKGROUND: The current antiemetic prophylaxis for patients treated with highly emetogenic chemotherapy (HEC) included the olanzapine-based triplet and neurokinin-1 receptor antagonists (NK-1RAs)-based triplet. However, which one shows better antiemetic effect remained unclear. MATERIALS AND METHODS: We systematically reviewed 43 trials, involving 16,609 patients with HEC, which compared the following antiemetics at therapeutic dose range for the treatment of chemotherapy-induced nausea and vomiting: olanzapine, aprepitant, casopitant, fosaprepitant, netupitant, and rolapitant. The main outcomes were the proportion of patients who achieved no nausea, complete response (CR), and drug-related adverse events. A Bayesian network meta-analysis was performed. RESULTS: Olanzapine-based triple regimens showed significantly better no-nausea rate in overall phase and delayed phase than aprepitant-based triplet (odds ratios 3.18, 3.00, respectively), casopitant-based triplet (3.78, 4.12, respectively), fosaprepitant-based triplet (3.08, 4.10, respectively), rolapitant-based triplet (3.45, 3.20, respectively), and conventional duplex regimens (4.66, 4.38, respectively). CRs of olanzapine-based triplet were roughly equal to different NK 1RAs-based triplet but better than the conventional duplet. Moreover, no significant drug-related adverse events were observed in olanzapine-based triple regimens when compared with NK-1RAs-based triple regimens and duplex regimens. Additionally, the costs of olanzapine-based regimens were obviously much lower than the NK-1RA-based regimens. CONCLUSION: Olanzapine-based triplet stood out in terms of nausea control and drug price but represented no significant difference of CRs in comparison with NK-1RAs-based triplet. Olanzapine-based triple regimens should be an optional antiemetic choice for patients with HEC, especially those suffering from delayed phase nausea. IMPLICATIONS FOR PRACTICE: According to the results of this study, olanzapine-based triple antiemetic regimens were superior in both overall and delayed-phase nausea control when compared with various neurokinin-1 receptor antagonists-based triple regimens in patients with highly emetogenic chemotherapy (HEC). Olanzapine-based triplet was outstanding in terms of nausea control and drug price. For cancer patients with HEC, especially those suffering from delayed-phase nausea, olanzapine-based triple regimens should be an optional antiemetic choice. PMID- 29330212 TI - Early and Locally Advanced Metaplastic Breast Cancer: Presentation and Survival by Receptor Status in Surveillance, Epidemiology, and End Results (SEER) 2010 2014. AB - BACKGROUND: Metaplastic breast cancer (MBC) is a rare disease subtype characterized by an aggressive clinical course. MBC is commonly triple negative (TN), although hormone receptor (HR) positive and human epidermal growth receptor 2 (HER2) positive cases do occur. Previous studies have reported similar outcomes for MBC with regard to HR status. Less is known about outcomes for HER2 positive MBC. MATERIALS AND METHODS: Surveillance, Epidemiology, and End Results Program data were used to identify women diagnosed 2010-2014 with MBC or invasive ductal carcinoma (IDC). Kaplan-Meier curves estimated overall survival (OS) and multivariate Cox models were fitted. For survival analyses, only first cancers were included, and 2014 diagnoses were excluded to allow for sufficient follow up. RESULTS: Our MBC sample included 1,516 women. Relative to women with IDC, women with MBC were more likely to be older (63 vs. 61 years), black (16.0% vs. 11.1%), and present with stage III disease (15.6% vs. 10.8%). HER2 positive and HER2 negative/HR positive MBC tumors represented 5.2% and 23.0% of cases. For MBC overall, 3-year OS was greatest for women with HER2 positive MBC (91.8%), relative to women with TN (75.4%) and HER2 negative/HR positive MBC (77.1%). This difference was more pronounced for stage III MBC, for which 3-year OS was 92.9%, 47.1%, and 42.2% for women with HER2 positive, TN, and HER2 negative/HR positive MBC, respectively. A multivariate Cox model of MBC demonstrated that HER2 positive tumors (relative to TN) were associated with improved survival (hazard ratio = 0.32, 95% confidence interval [CI] 0.13-0.79). In a second Cox model of exclusively HER2 positive tumors, OS did not differ between MBC and IDC disease subtypes (hazard ratio = 1.16, 95% CI 0.48-2.81). CONCLUSION: In this contemporary, population-based study of women with MBC, HER2 but not HR status was associated with improved survival. Survival was similar between HER2 positive MBC and HER2 positive IDC. This suggests HER2 positive MBC is responsive to HER2 directed therapy, a finding that may offer insights for additional therapeutic approaches to MBC. IMPLICATIONS FOR PRACTICE: This population-based study reports recent outcomes, by receptor status, for women with metaplastic breast cancer. Survival in metaplastic breast cancer is not impacted by hormone receptor status. To the authors' knowledge, this is the first report indicating that women with human epidermal growth receptor 2 (HER2) positive metaplastic breast cancer have survival superior to women with HER2 negative metaplastic breast cancer and survival similar to women with HER2 positive invasive ductal carcinoma. This information can be used for counseling patients diagnosed with metaplastic breast cancer. Further understanding of HER2 positive metaplastic breast cancer could offer insights for the development of therapeutic approaches to metaplastic breast cancer more broadly. PMID- 29330214 TI - Association of Statin Dose With Amputation and Survival in Patients With Peripheral Artery Disease. AB - BACKGROUND: Statin dose guidelines for patients with peripheral artery disease (PAD) are largely based on coronary artery disease and stroke data. The aim of this study is to determine the effect of statin intensity on PAD outcomes of amputation and mortality. METHODS: Using an observational cohort study design and a validated algorithm, we identified patients with incident PAD (2003-2014) in the national Veterans Affairs data. Highest statin intensity exposure (high intensity versus low-to-moderate-intensity versus antiplatelet therapy but no statin use) was determined within 1 year of diagnosis of PAD. Outcomes of interest were lower extremity amputations and death. The association of statin intensity with incident amputation and mortality was assessed with Kaplan-Meier plots, Cox proportional hazards modeling, propensity score-matched analysis, and sensitivity and subgroup analyses, as well, to reduce confounding. RESULTS: In 155 647 patients with incident PAD, more than a quarter (28%) were not on statins. Use of high-intensity statins was lowest in patients with PAD only (6.4%) in comparison with comorbid coronary/carotid disease (18.4%). Incident amputation and mortality risk declined significantly with any statin use in comparison with the antiplatelet therapy-only group. In adjusted Cox models, the high-intensity statin users were associated with lower amputation risk and mortality in comparison with antiplatelet therapy-only users (hazard ratio, 0.67; 95% confidence interval, 0.61-0.74 and hazard ratio, 0.74; 95% confidence interval, 0.70-0.77, respectively). Low-to-moderate-intensity statins also had significant reductions in the risk of amputation and mortality (hazard ratio amputation, 0.81; 95% confidence interval, 0.75- 0.86; hazard ratio death, 0.83; 95% confidence interval, 0.81-0.86) in comparison with no statins (antiplatelet therapy only), but effect size was significantly weaker than the high-intensity statins (P<0.001). The association of high-intensity statins with lower amputation and death risk remained significant and robust in propensity score matched, sensitivity, and subgroup analyses. CONCLUSIONS: Statins, especially high-intensity formulations, are underused in patients with PAD. This is the first population-based study to show that high-intensity statin use at the time of PAD diagnosis is associated with a significant reduction in limb loss and mortality in comparison with low-to-moderate-intensity statin users, and patients treated only with antiplatelet medications but not with statins, as well. PMID- 29330215 TI - MicroRNA-195 Regulates Metabolism in Failing Myocardium Via Alterations in Sirtuin 3 Expression and Mitochondrial Protein Acetylation. AB - BACKGROUND: Heart failure leads to mitochondrial dysfunction and metabolic abnormalities of the failing myocardium coupled with an energy-depleted state and cardiac remodeling. The mitochondrial deacetylase sirtuin 3 (SIRT3) plays a pivotal role in the maintenance of mitochondrial function through regulating the mitochondrial acetylome. It is interesting to note that unique cardiac and systemic microRNAs have been shown to play an important role in cardiac remodeling by modulating key signaling elements in the myocardium. METHODS: Cellular signaling was analyzed in human cardiomyocyte-like AC16 cells, and acetylation levels in rodent models of SIRT3-/-and transgenic microRNA-195 (miR 195) overexpression were compared with wild type. Luciferase assays, Western blotting, immunoprecipitation assays, and echocardiographic analysis were performed. Enzymatic activities of pyruvate dehydrogenase (PDH) and ATP synthase were measured. RESULTS: In failing human myocardium, we observed induction of miR 195 along with decreased expression of the mitochondrial deacetylase SIRT3 that was associated with increased global protein acetylation. We further investigated the role of miR-195 in SIRT3-mediated metabolic processes and its impact on regulating enzymes involved in deacetylation. Proteomic analysis of the total acetylome showed increased overall acetylation, and specific lysine acetylation of 2 central mitochondrial metabolic enzymes, PDH and ATP synthase, as well. miR 195 downregulates SIRT3 expression through direct 3'-untranslated region targeting. Treatments with either sirtuin inhibitor nicotinamide, small interfering RNA-mediated SIRT3 knockdown or miR-195 overexpression enhanced acetylation of PDH complex and ATP synthase. This effect diminished PDH and ATP synthase activity and impaired mitochondrial respiration.SIRT3-/- and miR-195 transgenic mice consistently showed enhanced global protein acetylation, including PDH complex and ATP synthase, associated with decreased enzymatic activity. CONCLUSIONS: Altogether, these data suggest that increased levels of miR-195 in failing myocardium regulate a novel pathway that involves direct SIRT3 suppression and enzymatic inhibition via increased acetylation of PDH and ATP synthase that are essential for cardiac energy metabolism. PMID- 29330216 TI - Is placebo response in antidepressant trials rising or not? A reanalysis of datasets to conclude this long-lasting controversy. AB - It had long been believed that placebo response rates in antidepressant trials have been increasing and that they were responsible for rising numbers of so called failed antidepressant trials. Two recent systematic reviews examined this issue and reached completely opposite findings. Furukawa and colleagues in a paper published in 2016 found that the placebo response rates are stable since 1991 and the apparent increase up to 2000 was confounded by changes in trial design features. By contrast, Khan and colleagues more recently concluded that placebo response rates had grown steadily in the past 30 years. The two reviews differed in the datasets they used, definitions of placebo response and statistical analyses. In this perspective article, we examined if such differences were responsible for the two reviews' contrasting conclusions. Our reanalyses confirmed our previous results. We found that in any dataset and for any placebo response definition, there was no increase in placebo response over the years when the analysis was adjusted for the confounders related to study design features or when it was limited to studies published after 1990s. We conclude that placebo response in antidepressant trials has remained stable for the past 25 years, during which time the large majority of the studies have come to share similar design features. PMID- 29330217 TI - A systematic review of network meta-analyses for pharmacological treatment of common mental disorders. AB - QUESTION: Network meta-analyses (NMAs) of treatment efficacy across different pharmacological treatments help inform clinical decision-making, but their methodological quality may vary a lot depending also on the quality of the included primary studies. We therefore conducted a systematic review of NMAs of pharmacological treatment for common mental disorders in order to assess the methodological quality of these NMAs, and to relate study characteristics to the rankings of efficacy and tolerability. STUDY SELECTION AND ANALYSIS: We searched three databases for NMAs of pharmacological treatment used in major depression, generalised anxiety disorder (GAD), social anxiety disorder (SAD), post-traumatic stress disorder (PTSD), obsessive-compulsive disorder (OCD) and specific phobia.Studies were appraised using the International Society for Pharmacoeconomics and Outcomes Research checklist of good research practices for indirect-treatment-comparison and network-meta-analysis studies. FINDINGS: Twenty NMAs were eligible for inclusion. The number of randomised controlled trials per NMA ranged from 11 to 234, and included between 801 to more than 26 000 participants. Overall, antidepressants were found to be efficacious and tolerable agents for several disorders based on rankings (45%) or statistical significance (55%). The majority of NMAs in this review adhered to guidelines by including a network diagram (70%), assessing consistency (75%), making use of a random effects model (75%), providing information on the model used to fit the data (75%) and adjusting for covariates (75%). CONCLUSIONS: The 20 NMAs of depression and anxiety disorders, PTSD and/or OCD included in this review demonstrate some methodological strengths in comparison with the larger body of published NMAs for medical disorders, support current treatment guidelines and help inform clinical decision-making. PMID- 29330218 TI - A Study on Pharmacokinetics of Bosentan with Systems Modeling, Part 1: Translating Systemic Plasma Concentration to Liver Exposure in Healthy Subjects. AB - Understanding liver exposure of hepatic transporter substrates in clinical studies is often critical, as it typically governs pharmacodynamics, drug-drug interactions, and toxicity for certain drugs. However, this is a challenging task since there is currently no easy method to directly measure drug concentration in the human liver. Using bosentan as an example, we demonstrate a new approach to estimate liver exposure based on observed systemic pharmacokinetics from clinical studies using physiologically based pharmacokinetic modeling. The prediction was verified to be both accurate and precise using sensitivity analysis. For bosentan, the predicted pseudo steady-state unbound liver-to-unbound systemic plasma concentration ratio was 34.9 (95% confidence interval: 4.2, 50). Drug-drug interaction (i.e., CYP3A and CYP2B6 induction) and inhibition of hepatic transporters (i.e., bile salt export pump, multidrug resistance-associated proteins, and sodium-taurocholate cotransporting polypeptide) were predicted based on the estimated unbound liver tissue or plasma concentrations. With further validation and refinement, we conclude that this approach may serve to predict human liver exposure and complement other methods involving tissue biopsy and imaging. PMID- 29330219 TI - A Study on Pharmacokinetics of Bosentan with Systems Modeling, Part 2: Prospectively Predicting Systemic and Liver Exposure in Healthy Subjects. AB - Predicting human pharmacokinetics of novel compounds is a critical step in drug discovery and clinical study design but continues to be a challenging task for hepatic transporter substrates, particularly in predicting their liver exposures. In this study, using bosentan as an example, we prospectively predicted systemic exposure and the (pseudo) steady-state unbound liver-to-unbound plasma ratio (Kpuu) in healthy subjects using 1) a mechanistic approach solely based on in vitro hepatocyte assays and 2) an approach based on hepatic process rates from monkey in vivo data but Michaelis-Menten constants from in vitro data. Both methods reasonably match the observed human systemic time course data, but the second method leads to better prediction accuracy. In addition, the second method can predict a human Kpuu value that is close to the value deduced using clinical data. We also generated rat and monkey liver Kpuu values in terminal studies. However, these directly measured animal values are different from the deduced human value. PMID- 29330220 TI - Regulation of Drug Metabolism by the Interplay of Inflammatory Signaling, Steatosis, and Xeno-Sensing Receptors in HepaRG Cells. AB - Nonalcoholic fatty liver disease (NAFLD), which is characterized by triglyceride deposition in hepatocytes resulting from imbalanced lipid homeostasis, is of increasing concern in Western countries, along with progression to nonalcoholic steatohepatitis (NASH), liver fibrosis, and cirrhosis. Previous studies suggest a complex, mutual influence of hepatic fat accumulation, NASH-related inflammatory mediators, and drug-sensing receptors regulating xenobiotic metabolism. Here, we investigated the suitability of human HepaRG hepatocarcinoma cells as a model for NAFLD and NASH. Cells were incubated for up to 14 days with an oleate/palmitate mixture (125 uM each) and/or with 10 ng/ml of the inflammatory mediator interleukin-6 (IL-6). Effects of these conditions on the regulation of drug metabolism were studied using xenobiotic agonists of the aryl hydrocarbon receptor (AHR), pregnane X receptor (PXR), constitutive androstane receptor (CAR), nuclear factor (erythroid-derived 2)-like 2, and peroxisome proliferator activated receptor alpha (PPARalpha). Results underpin the suitability of HepaRG cells for NAFLD- and NASH-related research and constitute a broad-based analysis of the impact of hepatic fatty acid accumulation and inflammation on drug metabolism and its inducibility by xenobiotics. IL-6 exerted pronounced negative regulatory effects on basal as well as on PXR-, CAR-, and PPARalpha-, but not AHR dependent induction of drug-metabolizing enzymes. This inhibition was related to diminished transactivation potential of the respective receptors rather than to reduced transcription of nuclear receptor-encoding mRNAs. The most striking effects of IL-6 and/or fatty acid treatment were observed in HepaRG cells after 14 days of treatment, making these cultures appear a suitable model for studying the relationship of fatty acid accumulation, inflammation, and xenobiotic-induced drug metabolism. PMID- 29330221 TI - Minimal/measurable residual disease in AML: a consensus document from the European LeukemiaNet MRD Working Party. AB - Measurable residual disease (MRD; previously termed minimal residual disease) is an independent, postdiagnosis, prognostic indicator in acute myeloid leukemia (AML) that is important for risk stratification and treatment planning, in conjunction with other well-established clinical, cytogenetic, and molecular data assessed at diagnosis. MRD can be evaluated using a variety of multiparameter flow cytometry and molecular protocols, but, to date, these approaches have not been qualitatively or quantitatively standardized, making their use in clinical practice challenging. The objective of this work was to identify key clinical and scientific issues in the measurement and application of MRD in AML, to achieve consensus on these issues, and to provide guidelines for the current and future use of MRD in clinical practice. The work was accomplished over 2 years, during 4 meetings by a specially designated MRD Working Party of the European LeukemiaNet. The group included 24 faculty with expertise in AML hematopathology, molecular diagnostics, clinical trials, and clinical medicine, from 19 institutions in Europe and the United States. PMID- 29330222 TI - Increased sympathovagal imbalance evaluated by heart rate variability is associated with decreased T2* MRI and left ventricular function in transfusion dependent thalassemia patients. AB - Early detection of iron overload cardiomyopathy is an important strategy for decreasing the mortality rate of patients with transfusion-dependent thalassemia (TDT). Although cardiac magnetic resonance (CMR) T2* is effective in detecting cardiac iron deposition, it is costly and not generally available. We investigated whether heart rate variability (HRV) can be used as a screening method of iron overload cardiomyopathy in TDT patients. HRV, evaluated by 24-h Holter monitoring, non-transferrin bound iron (NTBI), serum ferritin, left ventricular (LV) ejection fraction (LVEF), and CMR-T2* were determined. Patients with a cardiac iron overload condition had a significantly higher low frequency/high frequency (LF/HF) ratio than patients without a cardiac iron overload condition. Log-serum ferritin (r = -0.41, P=0.008), serum NTBI (r = 0.313, P=0.029), and LF/HF ratio (r = -0.286, P=0.043) showed a significant correlation with CMR-T2*, however only the LF/HF ratio was significantly correlated with LVEF (r = -0.264, P=0.043). These significant correlations between HRV and CMR-T2* and LVEF in TDT confirmed the beneficial role of HRV as a potential early screening tool of cardiac iron overload in thalassemia patients, especially in a medical center in which CMR T2* is not available. A larger number of TDT patients with cardiac iron overload are needed to confirm this finding. PMID- 29330223 TI - The antioxidant xanthorrhizol prevents amyloid-beta-induced oxidative modification and inactivation of neprilysin. AB - Activity of neprilysin (NEP), the major protease which cleaves amyloid-beta peptide (Abeta), is reportedly reduced in the brains of patients with Alzheimer's disease (AD). Accumulation of Abeta generates reactive oxygen species (ROS) such as 4-hydroxynonenal (HNE), and then reduces activities of Abeta-degrading enzymes including NEP. Xanthorrhizol (Xan), a natural sesquiterpenoid, has been reported to possess antioxidant and anti-inflammatory properties. The present study examined the effects of Xan on HNE- or oligomeric Abeta42-induced oxidative modification of NEP protein. Xan was added to the HNE- or oligomeric Abeta42 treated SK-N-SH human neuroblastoma cells and then levels, oxidative modification and enzymatic activities of NEP protein were measured. Increased HNE levels on NEP proteins and reduced enzymatic activities of NEP were observed in the HNE- or oligomeric Abeta42-treated cells. Xan reduced HNE levels on NEP proteins and preserved enzymatic activities of NEP in HNE- or oligomeric Abeta42-treated cells. Xan reduced Abeta42 accumulation and protected neurones against oligomeric Abeta42-induced neurotoxicity through preservation of NEP activities. These findings indicate that Xan possesses therapeutic potential for the treatment of neurodegenerative diseases, including AD, and suggest a potential mechanism for the neuroprotective effects of antioxidants for the prevention of AD. PMID- 29330224 TI - Vitamin D ameliorates impaired wound healing in streptozotocin-induced diabetic mice by suppressing NF-kappaB-mediated inflammatory genes. AB - Diabetic wounds are characterized by delayed wound healing due to persistent inflammation and excessive production of reactive oxygen species. Vitamin D, which is well acknowledged to enhance intestinal calcium absorption and increase in plasma calcium level, has recently been shown to display beneficial effects in various vascular diseases by promoting angiogenesis and inhibiting inflammatory responses. However, the role of Vitamin D in diabetic wound healing is still unclear. In the present study, we investigated the role of Vitamin D in cutaneous wound healing in streptozotocin (STZ)-induced diabetic mice. Four weeks after injection of STZ, a full thickness excisional wound was created with a 6-mm diameter sterile biopsy punch on the dorsum of the mice. Vitamin D was given consecutively for 14 days by intraperitoneal injection. Vitamin D supplementation significantly accelerated wound healing in diabetic mice and improved the healing quality as assessed by measuring the wound closure rate and histomorphometric analyses. By monitoring the level of pro-inflammatory cytokines tumor necrosis factor-alpha (TNF-alpha), interleukin (IL) 6 (IL-6), IL-1beta) in the wounds, reduced inflammatory response was found in VD treatment group. Furthermore, nuclear factor kappaB (NF-kappaB) pathway was found to be involved in the process of diabetic wound healing by assessing the relative proteins in diabetic wounds. Vitamin D supplementation obviously suppressed NF-kappaB pathway activation. These results demonstrated that Vitamin D improves impaired wound healing in STZ induced diabetic mice through suppressing NF-kappaB-mediated inflammatory gene expression. PMID- 29330225 TI - GENETICS IN ENDOCRINOLOGY: Genetic counseling for congenital hypogonadotropic hypogonadism and Kallmann syndrome: new challenges in the era of oligogenism and next-generation sequencing. AB - Congenital hypogonadotropic hypogonadism (CHH) and Kallmann syndrome (KS) are rare, related diseases that prevent normal pubertal development and cause infertility in affected men and women. However, the infertility carries a good prognosis as increasing numbers of patients with CHH/KS are now able to have children through medically assisted procreation. These are genetic diseases that can be transmitted to patients' offspring. Importantly, patients and their families should be informed of this risk and given genetic counseling. CHH and KS are phenotypically and genetically heterogeneous diseases in which the risk of transmission largely depends on the gene(s) responsible(s). Inheritance may be classically Mendelian yet more complex; oligogenic modes of transmission have also been described. The prevalence of oligogenicity has risen dramatically since the advent of massively parallel next-generation sequencing (NGS) in which tens, hundreds or thousands of genes are sequenced at the same time. NGS is medically and economically more efficient and more rapid than traditional Sanger sequencing and is increasingly being used in medical practice. Thus, it seems plausible that oligogenic forms of CHH/KS will be increasingly identified making genetic counseling even more complex. In this context, the main challenge will be to differentiate true oligogenism from situations when several rare variants that do not have a clear phenotypic effect are identified by chance. This review aims to summarize the genetics of CHH/KS and to discuss the challenges of oligogenic transmission and also its role in incomplete penetrance and variable expressivity in a perspective of genetic counseling. PMID- 29330226 TI - Mitotane treatment in patients with metastatic testicular Leydig cell tumor associated with severe androgen excess. AB - Mitotane (o,p'DDD) is established in the adjuvant and advanced-stage treatment of adrenocortical carcinoma and counteracts both tumor growth and tumor-related steroid production. Both the adrenal glands and the gonads are steroidogenically active organs and share a common embryogenic origin. Here, we describe the effects of mitotane in two patients with metastatic Leydig cell tumor (LCT) of the testes and associated severe androgen excess (serum testosterone 93 and 88 nmol/L, respectively; male reference range 7-27 nmol/L). Both men suffered from severe restlessness, insomnia and irritability, which they described as intolerable and disrupting normal life activities. Urinary steroid profiling by gas chromatography-mass spectrometry (GC-MS) confirmed excess androgen production and revealed concurrent overproduction of glucocorticoids and glucocorticoid precursors, which under physiological conditions are produced only by the adrenal glands but not by the gonads. In a palliative approach, they were commenced on mitotane, which achieved swift control of the hormone excess and the debilitating clinical symptoms, restoring normal quality of life. GC-MS demonstrated normalization of steroid production and decreased 5alpha-reductase activity, resulting in decreased androgen activation, and imaging demonstrated disease stabilization for 4-10 months. In conclusion, mitotane can be highly effective in controlling steroid excess in metastatic LCTs, with anti-tumor activity in some cases. PMID- 29330227 TI - Earlier post-operative hypocortisolemia may predict durable remission from Cushing's disease. AB - CONTEXT: Achievement of hypocortisolemia following transsphenoidal surgery (TSS) for Cushing's disease (CD) is associated with successful adenoma resection. However, up to one-third of these patients recur. OBJECTIVE: We assessed whether delay in reaching post-operative cortisol nadir may delineate patients at risk of recurrence for CD following TSS. METHODS: A retrospective review of 257 patients who received 291 TSS procedures for CD at NIH, between 2003 and 2016. Early biochemical remission (serum cortisol nadir <5 MUg/dL) was confirmed with endocrinological and clinical follow-up. Recurrence was detected by laboratory testing, clinical stigmata or medication dependence during a median follow-up of 11 months. RESULTS: Of the 268 unique admissions, remission was recorded in 241 instances. Recurrence was observed in 9% of these cases with cortisol nadir <=5 MUg/dL and 6% of cases with cortisol nadir <=2 MUg/dL. The timing of hypocortisolemia was critical in detecting late recurrences. Morning POD-1 cortisol <3.3 MUg/dL was 100% sensitive in predicting durable remission and morning POD-3 cortisol >=18.5 MUg/dL was 98.6% specific in predicting remote recurrence. AUROC analysis revealed that hypocortisolemia <=5 ug/dL before 15 h (post-operative) had 95% sensitivity and an NPV of 0.98 for durable remission. Serum cortisol level <=2 ug/dL, when achieved before 21 h, improved sensitivity to 100%. CONCLUSIONS: In our cohort, early, profound hypocortisolemia could be used as a clinical prediction tool for durable remission. Achievement of hypocortisolemia <=2 ug/dL before 21 post-operative hours appeared to accurately predict durable remission in the intermediate term. PMID- 29330229 TI - Determining the educational impact of the introduction of practice-based small group learning within an intraprofessional group of doctors. AB - INTRODUCTION: Practice-Based Small Group Learning (PBSGL) is a system for continuing professional development introduced into Wessex Region Defence Primary Healthcare (DPHC) as the Salisbury Plain PBSGL group in 2012. This is a mixed intraprofessional group comprising general practitioners (GPs), GP trainers, general practice specialist registrars (GPSTs) and general duties medical officers (GDMOs). METHODS: An anonymised online questionnaire and thematic analysis was undertaken to assess the educational impact of PBSGL in such a mixed role group reflecting military general practice. RESULTS: A positive effect of PBSGL was demonstrated and further enhanced by the intraprofessional composition. Positive peer support effects were demonstrated for all members of the cohort regardless of role. CONCLUSION: PBSGL is an essential pillar for supporting all doctors working within DPHC. Further qualitative evaluation of cohorts of GDMOs, GPSTs and mixed-role groups as well as the development of standardised questionnaires is recommended. PMID- 29330230 TI - Reducing sedentary behaviour to decrease chronic low back pain: the stand back randomised trial. AB - OBJECTIVE: The Stand Back study evaluated the feasibility and effects of a multicomponent intervention targeting reduced prolonged sitting and pain self management in desk workers with chronic low back pain (LBP). METHODS: This randomised controlled trial recruited 27 individuals with chronic LBP, Oswestry Disability Index (ODI) >10% and desk jobs (sitting >=20 hours/week). Participants were randomised within strata of ODI (>10%-<20%, >=20%) to receive bimonthly behavioural counselling (in-person and telephone), a sit-stand desk attachment, a wrist-worn activity-prompting device and cognitive behavioural therapy for LBP self-management or control. Self-reported work sitting time, visual analogue scales (VAS) for LBP and the ODI were assessed by monthly, online questionnaires and compared across intervention groups using linear mixed models. RESULTS: Baseline mean (SD) age was 52 (11) years, 78% were women, and ODI was 24.1 (10.5)%. Across the 6-month follow-up in models adjusted for baseline value, work sitting time was 1.5 hour/day (P<0.001) lower comparing intervention to controls. Also across follow-up, ODI was on average 8 points lower in intervention versus control (P=0.001). At 6 months, the relative decrease in ODI from baseline was 50% in intervention and 14% in control (P=0.042). LBP from VAS was not significantly reduced in intervention versus control, though small-to-moderate effect sizes favouring the intervention were observed (Cohen's d ranged from 0.22 to 0.42). CONCLUSION: An intervention coupling behavioural counselling targeting reduced sedentary behaviour and pain self-management is a translatable treatment strategy that shows promise for treating chronic LBP in desk-bound employees. TRIAL REGISTRATION NUMBER: NCT0224687; Pre-results. PMID- 29330231 TI - Some clues for studying long-term health effects of oil spills. PMID- 29330228 TI - Treatment of aggressive pituitary tumours and carcinomas: results of a European Society of Endocrinology (ESE) survey 2016. AB - OBJECTIVE: To collect outcome data in a large cohort of patients with aggressive pituitary tumours (APT)/carcinomas (PC) and specifically report effects of temozolomide (TMZ) treatment. DESIGN: Electronic survey to ESE members Dec 2015 Nov 2016. RESULTS: Reports on 166 patients (40 PC, 125 APT, 1 unclassified) were obtained. Median age at diagnosis was 43 (range 4-79) years. 69% of the tumours were clinically functioning, and the most frequent immunohistochemical subtype were corticotroph tumours (45%). Ki-67 index did not distinguish APT from PC, median 7% and 10% respectively. TMZ was first-line chemotherapy in 157 patients. At the end of the treatment (median 9 cycles), radiological evaluation showed complete response (CR) in 6%, partial response (PR) in 31%, stable disease (SD) in 33% and progressive disease in 30%. Response was more frequent in patients receiving concomitant radiotherapy and TMZ. CR was seen only in patients with low MGMT expression. Clinically functioning tumours were more likely to respond than non-functioning tumours, independent of MGMT status. Of patients with CR, PR and SD, 25, 40 and 48% respectively progressed after a median of 12-month follow-up. Other oncological drugs given as primary treatment and to TMZ failures resulted in PR in 20%. CONCLUSION: This survey confirms that TMZ is established as first line chemotherapeutic treatment of APT/PC. Clinically functioning tumours, low MGMT and concurrent radiotherapy were associated with a better response. The limited long-term effect of TMZ and the poor efficacy of other drugs highlight the need to identify additional effective therapies. PMID- 29330232 TI - Interventions Must Be Realistic to Be Useful and Completed in Family Medicine. AB - Being realistic while helping our patients is this issue's theme. Given the volume of tasks required in family medicine, recommendations for improvements in direct care or care measurement cannot just be evidence-based but must also be realistic. On the list of realistic: ordering antipsychotics for symptoms of dementia in the elderly, despite recommendations to not do so; ordering antidepressants without fear that the patient could develop hypertension; mental health care providers in primary care offices; forced choice for opioid management; plus agenda setting for visit efficiency. Not yet realistic: trigger tools to identify adverse events, and pharmacist recommendations related to pain management before opioid visits. Pneumococcal vaccine compliance is only realistic if recommendations are not recurrently changed, are paid for, and if prior immunizations are known. Increasing task delegation to prevent clinician burnout is not realistic if it burns out the nurses, or if the helpful scribes cannot be afforded. Helpful, yet questionably realistic: Primary care clinician involvement for patients in intensive care units and their families, and problem solving therapy by family physicians. And, let us add 'frightening': few international medical school graduates to serve the underserved. The most frequent diagnoses and most critical diagnoses in family medicine are elucidated. PMID- 29330233 TI - A State Chapter Perspective on Burnout and Resiliency. PMID- 29330234 TI - Burnout in Young Family Physicians: Variation Across States. AB - Family physicians 3 years out of training report high rates of emotional exhaustion and depersonalization, symptoms of burnout, with considerable variation between states. High rates of burnout among new family physicians is concerning and significant state-level variation suggests that state-related factors may contribute to or reduce burnout. PMID- 29330235 TI - Primary Care Physician Perspectives about Antipsychotics and Other Medications for Symptoms of Dementia. AB - BACKGROUND: Guidelines, policies, and warnings have been applied to reduce the use of medications for behavioral and psychological symptoms of dementia (BPSD). Because of rare dangerous side effects, antipsychotics have been singled out in these efforts. However, antipsychotics are still prescribed "off label" to hundreds of thousands of seniors residing in nursing homes and communities. Our objective was to evaluate how and why primary-care physicians (PCPs) employ nonpharmacologic strategies and drugs for BPSD. METHODS: Semi-structured interviews analyzed via template, immersion and crystallization, and thematic development of 26 PCPs (16 family practice, 10 general internal medicine) in full time primary-care practice for at least 3 years in Northwestern Virginia. RESULTS: PCPs described 4 major themes regarding BPSD management: (1) nonpharmacologic methods have substantial barriers; (2) medication use is not constrained by those barriers and is perceived as easy, efficacious, reasonably safe, and appropriate; (3) pharmacologic policies decrease the use of targeted medications, including antipsychotics, but also have unintended consequences such as increased use of alternative risky medications; and (4) PCPs need practical evidence-based guidelines for all aspects of BPSD management. CONCLUSIONS: PCPs continue to prescribe medications because they meet patient-oriented goals and because PCPs perceive drugs, including antipsychotics and their alternatives, to be more effective and less dangerous than evidence suggests. To optimally treat BPSD, PCPs need supportive verified prescribing guidelines and access to nonpharmacologic modalities that are as affordable, available, and efficacious as drugs; these require and deserve significant additional research and payer support. Community PCPs should be included in BPSD policy and guideline development. PMID- 29330236 TI - Antidepressants and Incident Hypertension in Primary Care Patients. AB - OBJECTIVE: Many ADMs can alter blood pressure (BP), but the research on the effect of antidepressant medication (ADMs) on incident hypertension is mixed. We investigated whether the use of ADMs was associated with the subsequent development of hypertension. METHODS: A retrospective cohort study was conducted using electronic medical record data from 6224 patients with primary care visits from 2008 to 2015. Prescription orders were used to identify ADM use, and hypertension was defined by medical record diagnosis. Using package insert warnings, a 3-level ADM exposure variable was created: ADMs that increase BP (ADM BP+), ADMs that do not increase BP, and no ADM. Unadjusted and adjusted Cox proportional hazard models were computed to estimate the association between the ADM exposure and incident hypertension. RESULTS: Unadjusted results revealed that ADM BP+ use compared with the no ADM group was significantly associated with incident hypertension (hazard ratio, 1.30; 95% confidence interval, 1.08-1.57). After adjusting for covariates, ADM BP+ use was no longer significantly associated with incident hypertension (hazard ratio, 1.20; 95% confidence interval, 0.97-1.49). CONCLUSIONS: Commonly used ADMs were not associated with incident hypertension after controlling for other factors associated with ADM use and hypertension. Research on potential dose and duration effects is warranted. PMID- 29330237 TI - 'The Hand on the Doorknob': Visit Agenda Setting by Complex Patients and Their Primary Care Physicians. AB - BACKGROUND: Choosing which issues to discuss in the limited time available during primary care visits is an important task for complex patients with chronic conditions. DESIGN, SETTING, AND PARTICIPANTS: We conducted sequential interviews with complex patients (n = 40) and their primary care physicians (n = 17) from 3 different health systems to investigate how patients and physicians prepare for visits, how visit agendas are determined, and how discussion priorities are established during time-limited visits. KEY RESULTS: Visit flow and alignment were enhanced when both patients and physicians were effectively prepared before the visit, when the patient brought up highest-priority items first, the physician and patient worked together at the beginning of the visit to establish the visit agenda, and other team members contributed to agenda setting. A range of factors were identified that undermined the ability of patient and physicians to establish an efficient working agenda: the most prominent were time pressure and short visit lengths, but also included differing visit expectations, patient hesitancy to bring up embarrassing concerns, electronic medical record/documentation requirements, differences balancing current symptoms versus future medical risk, nonactionable items, differing philosophies about medications and lifestyle interventions, and difficulty by patients in prioritizing their top concerns. CONCLUSIONS: Primary care patients and their physicians adopt a range of different strategies to address the time constraints during visits. The primary factor that supported well-aligned visits was the ability for patients and physicians to proactively negotiate the visit agenda at the beginning of the visit. Efforts to optimize care within time-constrained systems should focus on helping patients more effectively prepare for visits. Physicians should ask for the patient's agenda early, explain visit parameters, establish a reasonable number of concerns that can be discussed, and collaborate on a plan to deal with concerns that cannot be addressed during the visit. PMID- 29330238 TI - Changing Patterns of Mental Health Care Use: The Role of Integrated Mental Health Services in Veteran Affairs Primary Care. AB - OBJECTIVE: Aiming to foster timely, high-quality mental health care for Veterans, VA's Primary Care-Mental Health Integration (PC-MHI) embeds mental health specialists in primary care and promotes care management for depression. PC-MHI and patient-centered medical home providers work together to provide the bulk of mental health care for primary care patients with low-to-moderate-complexity mental health conditions. This study examines whether increasing primary care clinic engagement in PC-MHI services is associated with changes in patient health care utilization and costs. METHODS: We performed a retrospective longitudinal cohort study of primary care patients with identified mental health needs in 29 Southern California VA clinics from October 1, 2008 to September 30, 2013, using electronic administrative data (n = 66,638). We calculated clinic PC-MHI engagement as the proportion of patients receiving PC-MHI services among all primary care clinic patients in each year. Capitalizing on variation in PC-MHI engagement across clinics, our multivariable regression models predicted annual patient use of 1) non-primary care based mental health specialty (MHS) visits, 2) total mental health visits (ie, the sum of MHS and PC-MHI visits), and 3) health care utilization and costs. We controlled for year- and clinic-fixed effects, other clinic interventions, and patient characteristics. RESULTS: Median clinic PC-MHI engagement increased by 8.2 percentage points over 5 years. At any given year, patients treated at a clinic with 1 percentage-point higher PC-MHI engagement was associated with 0.5% more total mental health visits (CI, 0.18% to 0.90%; P = .003) and 1.0% fewer MHS visits (CI, -1.6% to -0.3%; P = .002); this is a substitution rate, at the mean, of 1.5 PC-MHI visits for each MHS visit. There was no PC-MHI effect on other health care utilization and costs. CONCLUSIONS: As intended, greater clinic engagement in PC-MHI services seems to increase realized accessibility to mental health care for primary care patients, substituting PC-MHI for MHS visits, without increasing acute care use or total costs. Thus, PC-MHI services within primary care clinics may improve mental health care value at the patient population level. More research is needed to understand the relationship between clinic PC-MHI engagement and clinical quality of mental health care. PMID- 29330239 TI - One Year of Family Physicians' Observations on Working with Medical Scribes. AB - PURPOSE: The immense clerical burden felt by physicians is one of the leading causes of burnout. Scribes are increasingly being used to help alleviate this burden, yet few published studies investigate how scribes affect physicians' daily work, attitudes and behaviors, and relationships with patients and the workplace. METHODS: Using a longitudinal observational design, data were collected, over 1 year, from 4 physicians working with 2 scribes at a single academic family medicine practice. Physician experience was measured by open ended written reflections requested after each 4-hour clinic session. A data driven codebook was generated using a constant comparative method with grounded theory approach. RESULTS: A total of 361 physician reflections were completed, yielding 150 distinct excerpts; 289 codes were assigned. The 11 themes that emerged were further categorized under 4 domains. The most frequently recurring domain was clinic operations, which comprised 51.6% of the codes. Joy of practice, quality of care, and patient experience comprised 22.1%, 16.3%, and 10.0% of the codes, respectively. CONCLUSIONS: Our study suggests that integrating scribes into a primary care clinic can produce positive outcomes that go beyond reducing clerical burden for physicians. Scribes may benefit patient experience, quality of care, clinic operations, and joy of practice. PMID- 29330240 TI - Structured Management of Chronic Nonmalignant Pain with Opioids in a Rural Primary Care Office. AB - INTRODUCTION: The use of opioid medication for nonmalignant chronic pain (NMCP) increased dramatically during the last 20 years. There have been regulatory changes implemented to reduce the risk of harm to both patients and society. Much of the burden of monitoring these patients is falling on primary care physicians (PCPs), who do not have the time or resources to handle what is entailed in a best-practice approach to NMCP. METHODS: A retrospective study was conducted with all patients on opioid medication for NMCP who were enrolled onto an individual PCP's practice. All were required to engage with a new care system. Patients had the option to remain on opioids, to wean opioids, or to transfer care. Patients who remained in the practice on opioids were required to have an office visit on a day dedicated solely to NMCP every 3 months. Each visit involved verifying the controlled substance contract, a urine drug screen, board of pharmacy monitoring, pain-targeted history and physical, calculation of the average morphine equivalents used, and evaluations of pain, functional status, and mood. Characteristics more likely to lead to weaning from opioids were monitored, as was the program effect on the patients remaining on opioids. RESULTS: With this practice model, 32 patients treated with opioids for NMCP were enrolled. Of these, 38% (n = 12) elected to wean opioids, 53% (n = 17) continued opioid medication, and 9% (n = 3) transferred care. Mean morphine equivalent mg/day was the prime determinant for ability to wean (17.01 mg/day) compared with maintaining (30.61 mg/day) (P = .0397; CI, 0.68 to 26.51). Patients maintaining opioid treatment showed no statistically significant change in any measured data point from beginning until end of the evaluation period. CONCLUSION: Given the choice of following a specific structured care system of opioid medication management or leaving the practice, most patients agreed to the structured system. This approach provided a high degree of compliance with controlled substance regulations and is associated with a reduced number of opioid prescriptions. Patients who were on lower doses of opioid medication are more likely to wean their use with this model. PMID- 29330241 TI - Primary Care Physician Involvement in Shared Decision Making for Critically Ill Patients and Family Satisfaction with Care. AB - PURPOSE: An intensive care unit (ICU) patient's primary care physician (PCP) may be able to assist family with certain ICU shared medical decisions. We explored whether families of patients in nonopen ICUs who nevertheless report involvement of a patient's PCP in medical decision making are more satisfied with ICU shared decision making than families who do not. METHODS: Between March 2013 and December 2015, we administered the Family Satisfaction in the ICU 24 survey to family members of adult neuroscience ICU patients. We compared the mean score for the survey subsection regarding shared decision making (graded on a 100-point scale), as well as individual survey items, between those who reported the patient's PCP involvement in any medical decision making versus those who did not. RESULTS: Among 263 respondents, there was no difference in mean overall decision-making satisfaction scores for those who reported involvement (81.1; SD = 15.2) versus those who did not (80.1; SD = 12.8; P = .16). However, a higher proportion reporting involvement felt completely satisfied with their 1) inclusion in the ICU decision making process (75.9% vs 61.4%; P = .055), and 2) control over the care of the patient (73.6% vs 55.6%; P = .02), with no difference regarding consistency of clinical information provided by the medical team (64.8% vs 63.5%; P = 1.00). CONCLUSIONS: Families who report involvement of a patient's PCP in medical decision making for critically ill patients may be more satisfied than those who do not with regard to specific aspects of ICU decision making. Further research would help understand how best to engage PCPs in shared decisions. PMID- 29330242 TI - Patient Perspectives on Discussions of Electronic Cigarettes in Primary Care. AB - PURPOSE: Patient preferences regarding the role of the primary care provider (PCP) in discussing electronic cigarette (e-cigarette) use are unknown. METHODS: We administered a cross-sectional survey to 568 adult patients in a family medicine clinic to explore e-cigarette use, sources of information on e cigarettes, perceived knowledge about e-cigarette health effects, views regarding PCP knowledge of e-cigarettes, interest in discussing e-cigarettes with PCPs and preferred format for e-cigarette information. We performed chi2 testing with a 2 tailed P < .05 to assess associations between e-cigarette use and these measures. RESULTS: The prevalence of e-cigarette use was 10% for recent (<=30 days) use and 29% for nonrecent (>30 days) use. Prevalence was significantly higher among those who were younger, less educated, or smoked cigarettes, but did not vary by sex or self-reported health status. Roughly one quarter of participants believed they were knowledgeable about the health effects of e-cigarettes, secondhand smoke, and quitting cigarettes. Sources of e-cigarette information included television advertisements (56.6%), friends and family (49.9%), or e-cigarette shops (25.5%), but included physician offices much less frequently (6.0%). Although 30.2% disagreed that their PCP knew a lot about e-cigarettes, 62.0% were comfortable discussing e-cigarettes with their PCP. However, only 25% of all patients wanted their PCP to discuss e-cigarettes with them, but 62.0% of recent e-cigarette users wanted such a discussion. Most preferred a brief discussion or handout to a lengthy discussion. CONCLUSION: PCPs were infrequent sources of information for patients regarding e-cigarette use. PCPs need evidence-based strategies to help them address e-cigarettes in primary care. PMID- 29330243 TI - Task Delegation and Burnout Trade-offs Among Primary Care Providers and Nurses in Veterans Affairs Patient Aligned Care Teams (VA PACTs). AB - PURPOSE: Appropriate delegation of clinical tasks from primary care providers (PCPs) to other team members may reduce employee burnout in primary care. However, (1) the extent to which delegation occurs within multidisciplinary teams, (2) factors associated with greater delegation, and (3) whether delegation is associated with burnout are all unknown. METHODS: We performed a national cross-sectional survey of Veterans Affairs (VA) PCP-nurse dyads in Department of VA primary care clinics, 4 years into the VA's patient-centered medical home initiative. PCPs reported the extent to which they relied on other team members to complete 15 common primary care tasks; paired nurses reported how much they were relied on to complete the same tasks. A composite score of task delegation/reliance was developed by taking the average of the responses to the 15 questions. We performed multivariable regression to explore predictors of task delegation and burnout. RESULTS: Among 777 PCP-nurse dyads, PCPs reported delegating tasks less than nurses reported being relied on (PCP mean +/- standard deviation composite delegation score, 2.97+/- 0.64 [range, 1-4]; nurse composite reliance score, 3.26 +/- 0.50 [range, 1-4]). Approximately 48% of PCPs and 35% of nurses reported burnout. PCPs who reported more task delegation reported less burnout (odds ratio [OR], 0.62 per unit of delegation; 95% confidence interval [CI], 0.49-0.78), whereas nurses who reported being relied on more reported more burnout (OR, 1.83 per unit of reliance; 95% CI, 1.33-2.5). CONCLUSIONS: Task delegation was associated with less burnout for PCPs, whereas task reliance was associated with greater burnout for nurses. Strategies to improve work life in primary care by increasing PCP task delegation must consider the impact on nurses. PMID- 29330245 TI - Impact of Pharmacist Previsit Input to Providers on Chronic Opioid Prescribing Safety. AB - INTRODUCTION: Primary care providers (PCPs) account for half of opioid prescriptions, often feel chronic pain patients are challenging to manage, and there is wide variability in practice patterns. The purpose of this pilot study was to evaluate the impact of a previsit pharmacist review of high-risk patients treated with opioids for chronic pain on compliance to guideline recommendations at a family medicine residency clinic. METHODS: All adult patients with an appointment for chronic pain who were prescribed >50 morphine milligram equivalents (MMEs)/day had charts reviewed by a pharmacist before each appointment; recommendations were sent electronically to the provider before the appointment. After 4 months of implementation, each patient's chart was manually reviewed to gather outcome variables. The primary outcomes were the mean MMEs/day and pain scores. RESULTS: Pharmacist previsit recommendations were provided for 45 patients. When comparing outcomes before and after intervention, the mean MMEs/day decreased by 14% (P < .001), with no change in pain scores (P = .783). Statistically significant improvements were noted in multiple other secondary opioid safety outcomes. CONCLUSION: Clinical pharmacists providing previsit recommendations was associated with decreased opioid utilization with no corresponding increase in pain scores and increased compliance to guideline recommendations. PMID- 29330244 TI - Primary Care Physicians' Struggle with Current Adult Pneumococcal Vaccine Recommendations. AB - INTRODUCTION: In 2012, the Advisory Committee on Immunization Practices recommended 13-valent pneumococcal conjugate vaccine (PCV13) in series with 23 valent pneumococcal polysaccharide vaccine (PPSV23) for at-risk adults >=19; in 2014, it expanded this recommendation to adults >=65. Primary care physicians' practice, knowledge, attitudes, and beliefs regarding these recommendations are unknown. METHODS: Primary care physicians throughout the U.S. were surveyed by E mail and post from December 2015 to January 2016. RESULTS: Response rate was 66% (617 of 935). Over 95% of respondents reported routinely assessing adults' vaccination status and recommending both vaccines. A majority found the current recommendations to be clear (50% "very clear," 38% "somewhat clear"). Twenty percent found the upfront cost of purchasing PCV13, lack of insurance coverage, inadequate reimbursement, and difficulty determining vaccination history to be "major barriers" to giving these vaccines. Knowledge of recommendations varied, with 83% identifying the PCV13 recommendation for adults >=65 and only 21% identifying the recommended interval between PCV13 and PPSV23 in an individual <65 at increased risk. CONCLUSIONS: Almost all surveyed physicians reported recommending both pneumococcal vaccines, but a disconnect seems to exist between perceived clarity and knowledge of the recommendations. Optimal implementation of these recommendations will require addressing knowledge gaps and reported barriers. PMID- 29330246 TI - The Accuracy of Trigger Tools to Detect Preventable Adverse Events in Primary Care: A Systematic Review. AB - PURPOSE: To understand the ability of trigger tools to detect preventable adverse events (pAEs) in the primary care outpatient setting using the Institute for Healthcare Improvement's (IHI) Outpatient Adverse Event Trigger Tool (IHI Tool). METHODS: The OVID MEDLINE and OVID MEDLINE In-process and non-Indexed citations databases were queried using controlled vocabulary and Medical Subject Headings related to the concepts "primary care" and "adverse events." Included articles were conducted in the outpatient setting, used at least 1 of the triggers identified in the IHI Tool, and identified pAEs of any type. Articles were selected for inclusion based first on assessment of titles then abstracts by 2 trained reviewers independently, followed by full text review by 2 authors. RESULTS: Our search identified 6435 unique articles, and we included 15 in our review. The most common studied trigger was laboratory abnormalities. The most common pAEs were medication errors followed by unplanned hospitalizations. The effectiveness of triggers in identifying AEs varied widely. CONCLUSION: There is insufficient data on the IHI Tool and its use to identify pAEs in the general real-world outpatient setting. Health care providers of the primary care setting may benefit from better trigger tools and other methods to help them detect pAEs. More research is needed to further evaluate the effectiveness of trigger tools to reduce barriers of cost and time and improve patient safety. PMID- 29330247 TI - Frequency and Criticality of Diagnoses in Family Medicine Practices: From the National Ambulatory Medical Care Survey (NAMCS). AB - BACKGROUND: Family medicine is a specialty of breadth, providing comprehensive health care for the individual and the family that integrates the broad scope of clinical, social, and behavioral sciences. As such, the scope of practice (SOP) for family medicine is extensive; however, over time many family physicians narrow their SOP. We sought to provide a nationally representative description of the most common and the most critical diagnoses that family physicians see in their practice. METHODS: Data were extracted from the 2012 National Ambulatory Medical Care Survey (NAMCS) to select all ICD-9 codes reported by family physicians. A panel of family physicians then reviewed 1893 ICD-9 codes to place each code into an American Board of Family Medicine Family Medicine Certification Examination test plan specifications (TPS) category and provide a rating for an Index of Harm (IoH). RESULTS: An analysis of all 1893 ICD-9 codes seen by family physicians in the 2012 NAMCS found that 198 ICD-9 codes could not be assigned a TPS category, leaving 1695 ICD-9 codes in the dataset. Top 10 lists of ICD-9 codes by TPS category were created for both frequency and IoH. CONCLUSIONS: This study provides a nationally representative description of the most common diagnoses that family physicians are seeing in their practice and the criticality of these diagnoses. These results provide insight into the domain of the specialty of family medicine. Medical educators may use these results to better tailor education and training to practice. PMID- 29330248 TI - The Effectiveness of Problem-Solving Therapy for Primary Care Patients' Depressive and/or Anxiety Disorders: A Systematic Review and Meta-Analysis. AB - BACKGROUND: There is increasing demand for managing depressive and/or anxiety disorders among primary care patients. Problem-solving therapy (PST) is a brief evidence- and strength-based psychotherapy that has received increasing support for its effectiveness in managing depression and anxiety among primary care patients. METHODS: We conducted a systematic review and meta-analysis of clinical trials examining PST for patients with depression and/or anxiety in primary care as identified by searches for published literature across 6 databases and manual searching. A weighted average of treatment effect size estimates per study was used for meta-analysis and moderator analysis. RESULTS: From an initial pool of 153 primary studies, 11 studies (with 2072 participants) met inclusion criteria for synthesis. PST reported an overall significant treatment effect for primary care depression and/or anxiety (d = 0.673; P < .001). Participants' age and sex moderated treatment effects. Physician-involved PST in primary care, despite a significantly smaller treatment effect size than mental health provider only PST, reported an overall statistically significant effect (d = 0.35; P = .029). CONCLUSIONS: Results from the study supported PST's effectiveness for primary care depression and/or anxiety. Our preliminary results also indicated that physician-involved PST offers meaningful improvements for primary care patients' depression and/or anxiety. PMID- 29330249 TI - Is It Idiopathic Pulmonary Fibrosis or Not? AB - Pulmonary fibrosis is not uncommon. Usual interstitial pneumonitis (UIP)/idiopathic pulmonary fibrosis (IPF) is the most common of the idiopathic pulmonary fibrotic diseases and has the worst prognosis with a mean life expectancy of 3.8 years. The American Thoracic Society has provided guidelines for the accurate diagnosis of IPF.In 2014, 2 antifibrotic medications were approved in the United States that target the multiple fibrotic pathways of UIP, which increased the need for early and accurate diagnosis of IPF. The early and correct diagnosis is hampered by mimickers that include nonspecific interstitial pneumonitis, chronic hypersensitivity pneumonitis, and fibrotic sarcoidosis. Careful history taking, serologic testing, and Computer Tomography (CT) inspection can frequently make the correct diagnosis without need of invasive procedure. The purpose of this article is to share the most important aspects of the clinical and radiology presentation of IPF and its mimickers to enhance primary care clinician's ability to correctly and noninvasively diagnose UIP/IPF. PMID- 29330250 TI - The Intersection of National Immigration and Healthcare Policy. AB - Immigration policy and health care policy remain principal undertakings of the federal government. The two have recently been pursued independently in the judicial and legislative arenas. Unbeknownst to many policymakers, however, national immigration policy and health care policy are linked in ways that, if unattended, could undermine the well-being of a significant portion of the US population, specifically medically underserved rural and urban populations. Using current data from a workforce report of the Association of American Colleges and the published literature, we demonstrate the significant impact that contemporary immigration policy directives may have on the number and distribution of international medical graduates who currently provide-and by the year 2025 will provide-a significant portion of primary health care in the United States, especially in underserved small urban and rural communities. PMID- 29330251 TI - Diplomate Status: A Matter of Distinction. PMID- 29330252 TI - The Numbers Quandary in Family Medicine Obstetrics. PMID- 29330253 TI - Re: The Numbers Quandary in Family Medicine Obstetrics. PMID- 29330254 TI - Increased Levels of Lectin-Like Oxidized Low-Density Lipoprotein Receptor-1 in Ischemic Stroke and Transient Ischemic Attack. AB - BACKGROUND: Soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX 1) has been shown to be increased in patients with acute ischemic stroke. Here, we evaluated plasma sLOX-1 levels and vascular carotid plaque LOX-1 (ie, OLR1) gene expression in patients with ischemic stroke and transient ischemic attack (TIA) with particular focus on their relation to time since symptom onset. METHODS AND RESULTS: Plasma sLOX-1 (n=232) and carotid plaque OLR1 gene expression (n=146) were evaluated in patients who were referred to evaluation for carotid endarterectomy, as well as in healthy control plasma (n=81). Patients were categorized according to presence of acute ischemic stroke or transient ischemic attack (n=35) <=7 days, >7 days <=3 months (n=90), >3 months (n=40), or no reported symptoms before study inclusion (n=67). Our major findings were the following: (1) Patients with carotid atherosclerosis had increased plasma sLOX-1 levels as compared with controls. (2) Plaque OLR1 mRNA levels were increased in carotid plaques (n=146) compared with nonatherosclerotic vessels (ie, common iliac arteries of organ donors, n=10). (3) There were no differences in sLOX plasma levels or OLR1 gene expression when analyzed according to the time since relevant cerebral ischemic symptoms. (4) Also patients with severe carotid atherosclerosis without any previous ischemic events had raised sLOX-1 levels. (5) Immunostaining showed colocalization between LOX-1 and macrophages within the carotid plaques. (6) Also patients with acute stroke (within 7 days) caused by atrial fibrillation (n=22) had comparable raised sLOX-1 levels. CONCLUSIONS: sLOX 1 levels are elevated in patients with ischemic stroke and transient ischemic attack independent of cause and time since the ischemic event. PMID- 29330255 TI - High-Intensity Cigarette Smoking Is Associated With Incident Diabetes Mellitus In Black Adults: The Jackson Heart Study. AB - BACKGROUND: Previous reports on whether smoking is associated with insulin resistance and diabetes mellitus have yielded inconsistent findings. We aimed to evaluate the relationship between cigarette smoking and incident diabetes mellitus in the Jackson Heart Study. METHODS AND RESULTS: Jackson Heart Study participants enrolled at baseline without prevalent diabetes mellitus (n=2991) were classified by self-report as current smokers, past smokers (smoked >=400 cigarettes/life and no longer smoking), or never smokers. We quantified smoking intensity by number of cigarettes smoked daily; we considered >=20 cigarettes per day (1 pack) "high-intensity." We defined diabetes mellitus as fasting glucose >=126 mg/dL, hemoglobin A1c >=6.5% or International Federation of Clinical Chemistry units HbA1c 48 mmol/mol, or use of diabetes mellitus medication. We estimated the adjusted associations of smoking status, intensity, and dose (pack years) with incident diabetes mellitus using Poisson regression models. At baseline there were 361 baseline current (1-10 cigarettes per day [n=242]; >=20 [n=119]), 502 past, and 2128 never smokers. From Visit 1 to Visit 3 (mean 8.0+/ 0.9 years), 479 participants developed incident diabetes mellitus. After adjustment for covariates, baseline current smokers who smoked less than a pack/d and past smokers had similar rates of incident diabetes mellitus compared with never smokers (incidence rate ratios 1.04, 95% confidence interval, 0.69-1.58 and 1.08, 95% confidence interval, 0.82-1.42, respectively). Baseline current high intensity smokers had a 79% (95% confidence interval, 1.14-2.81) higher incidence of diabetes mellitus compared with never smokers. Smoking dose (per 10 pack years) was also associated with a higher incidence of diabetes mellitus (incidence rate ratios 1.10, 95% confidence interval, 1.03-1.19) in adjusted models. CONCLUSIONS: High-intensity cigarette smoking and smoking pack-years are associated with an increased risk of developing diabetes mellitus in blacks. PMID- 29330256 TI - Osteoprotegerin Is Associated With Major Bleeding But Not With Cardiovascular Outcomes in Patients With Acute Coronary Syndromes: Insights From the PLATO (Platelet Inhibition and Patient Outcomes) Trial. AB - BACKGROUND: Elevated levels of osteoprotegerin, a secreted tumor necrosis factor related molecule, might be associated with adverse outcomes in patients with coronary artery disease. We measured plasma osteoprotegerin concentrations on hospital admission, at discharge, and at 1 and 6 months after discharge in a predefined subset (n=5135) of patients with acute coronary syndromes in the PLATO (Platelet Inhibition and Patient Outcomes) trial. METHODS AND RESULTS: The associations between osteoprotegerin and the composite end point of cardiovascular death, nonprocedural spontaneous myocardial infarction or stroke, and non-coronary artery bypass grafting major bleeding during 1 year of follow-up were assessed by Cox proportional hazards models. Event rates of the composite end point per increasing quartile groups at baseline were 5.2%, 7.5%, 9.2%, and 11.9%. A 50% increase in osteoprotegerin level was associated with a hazard ratio (HR) of 1.31 (95% confidence interval [CI], 1.21-1.42) for the composite end point but was not significant in adjusted analysis (ie, clinical characteristics and levels of C-reactive protein, troponin T, NT-proBNP [N-terminal pro-B-type natriuretic peptide], and growth differentiation factor-15). The corresponding rates of non-coronary artery bypass grafting major bleeding were 2.4%, 2.2%, 3.8%, and 7.2%, with an unadjusted HR of 1.52 (95% CI, 1.36-1.69), and a fully adjusted HR of 1.26 (95% CI, 1.09-1.46). The multivariable association between the osteoprotegerin concentrations and the primary end point after 1 month resulted in an HR of 1.09 (95% CI, 0.89-1.33); for major bleeding after 1 month, the HR was 1.33 (95% CI, 0.91-1.96). CONCLUSIONS: In patients with acute coronary syndrome treated with dual antiplatelet therapy, osteoprotegerin was an independent marker of major bleeding but not of ischemic cardiovascular events. Thus, high osteoprotegerin levels may be useful in increasing awareness of increased bleeding risk in patients with acute coronary syndrome receiving antithrombotic therapy. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00391872. PMID- 29330257 TI - Hemoglobin, Albuminuria, and Kidney Function in Cardiovascular Risk: The ARIC (Atherosclerosis Risk in Communities) Study. AB - BACKGROUND: Reduced estimated glomerular filtration rate (eGFR) and elevated urinary albumin-to-creatinine ratio (ACR) individually increase risk of cardiovascular disease (CVD). We hypothesized that these associations are stronger among people with abnormal (both low and high) hemoglobin levels. METHODS AND RESULTS: Using 5801 participants with available hemoglobin measures of the ARIC (Atherosclerosis Risk in Community) study in 1996-1998, we explored the cross-sectional association of eGFR and ACR with hemoglobin levels and their longitudinal associations with CVD (heart failure, coronary heart disease, and stroke) risk through 2013. At baseline, 8.8% had anemia (<13 g/dL in men and <12 g/dL in women) and 7.2% had high hemoglobin (>=16 g/dL in men and >=15 g/dL in women). The adjusted prevalence ratio of anemia was 2.12 (95% confidence interval, 1.59-2.82) for eGFR 30 to 59 compared with >=90 mL/min per 1.73 m2 and 1.45 (1.07-1.95) for ACR >=30 compared with <10 mg/g. ACR >=30 mg/g was also associated with high hemoglobin (prevalence ratio, 1.57 [1.12-2.19] compared with <10 mg/g). During follow-up, there were 1069 incident CVDs among 5098 CVD-free participants at baseline. In multivariable Cox models, lower eGFR, higher ACR, and anemia were each independently associated with CVD risk, with the association of low eGFR being slightly stronger in anemia (P-for-interaction, 0.072). There was no hemoglobin-ACR interaction; however, when CVD subtypes were analyzed separately, risk of coronary heart disease and stroke associated with high ACR was slightly stronger in high hemoglobin (P-for-interaction, 0.074). CONCLUSIONS: Kidney function, albuminuria, and anemia were correlated and independently associated with CVD risk. Correlation and potential interaction for atherosclerotic CVD between albuminuria and high hemoglobin deserve further investigation. PMID- 29330259 TI - Limited Accuracy of Administrative Data for the Identification and Classification of Adult Congenital Heart Disease. AB - BACKGROUND: Administrative data sets utilize billing codes for research and quality assessment. Previous data suggest that such codes can accurately identify adults with congenital heart disease (CHD) in the cardiology clinic, but their use has yet to be validated in a larger population. METHODS AND RESULTS: All administrative codes from an entire health system were queried for a single year. Adults with a CHD diagnosis code (International Classification of Diseases, Ninth Revision, (ICD-9) codes 745-747) defined the cohort. A previously validated hierarchical algorithm was used to identify diagnoses and classify patients. All charts were reviewed to determine a gold standard diagnosis, and comparisons were made to determine accuracy. Of 2399 individuals identified, 206 had no CHD by the algorithm or were deemed to have an uncertain diagnosis after provider review. Of the remaining 2193, only 1069 had a confirmed CHD diagnosis, yielding overall accuracy of 48.7% (95% confidence interval, 47-51%). When limited to those with moderate or complex disease (n=484), accuracy was 77% (95% confidence interval, 74-81%). Among those with CHD, misclassification occurred in 23%. The discriminative ability of the hierarchical algorithm (C statistic: 0.79; 95% confidence interval, 0.77-0.80) improved further with the addition of age, encounter type, and provider (C statistic: 0.89; 95% confidence interval, 0.88 0.90). CONCLUSIONS: ICD codes from an entire healthcare system were frequently erroneous in detecting and classifying CHD patients. Accuracy was higher for those with moderate or complex disease or when coupled with other data. These findings should be taken into account in future studies utilizing administrative data sets in CHD. PMID- 29330258 TI - Chronic Total Occlusion Percutaneous Coronary Intervention: Evidence and Controversies. PMID- 29330261 TI - Conscientious objection in abortion care. PMID- 29330260 TI - Race and Socioeconomic Status Independently Affect Risk of Major Amputation in Peripheral Artery Disease. AB - BACKGROUND: Black race has been shown to be a risk factor for amputation in peripheral artery disease (PAD); however, race has been argued to be a marker for socioeconomic status (SES) rather than true disparity. The aim of this study is to study the impact of race and SES on amputation risk in PAD patients. METHODS AND RESULTS: Patients with incident PAD in the national Veterans Affairs Corporate Data Warehouse were identified from 2003 to 2014 (N=155 647). The exposures were race and SES (measured by median income in residential ZIP codes). The outcome was incident major amputation. Black veterans were significantly more likely to live in low-SES neighborhoods and to present with advanced PAD. Black patients had a higher amputation risk in each SES stratum compared with white patients. In Cox models (adjusting for covariates), black race was associated with a 37% higher amputation risk compared with white race (hazard ratio: 1.37; 95% confidence interval, 1.30-1.45), whereas low SES was independently predictive of increased risk of amputation (hazard ratio: 1.12; 95% confidence interval, 1.06-1.17) and showed no evidence of interaction with race. In predicted amputation risk analysis, black race and low SES continued to be significant risk factors for amputation regardless of PAD presentation. CONCLUSIONS: Black race significantly increases the risk of amputation within the same SES stratum compared with white race and has an independent effect on limb loss after controlling for comorbidities, severity of PAD at presentation, and use of medications. PMID- 29330263 TI - Senescence-Associated Chromatin Remodeling Promotes Cancer Stemness. AB - Treatment-induced senescence is associated with stem-cell reprogramming of non stem cancer cells. PMID- 29330262 TI - Coffee consumption and health: umbrella review of meta-analyses of multiple health outcomes. PMID- 29330264 TI - Ependymoma Superenhancer Profiling Reveals Potential Therapeutic Targets. AB - Ependymoma superenhancer landscapes delineate molecular subgroups and define transcriptional circuitries. PMID- 29330265 TI - FGFR3-TACC3 Activates Mitochondrial Respiration via PIN4 Phosphorylation. AB - PIN4 is a FGFR3-TACC3 substrate required for ROS-mediated induction of PGCIalpha and tumor growth. PMID- 29330266 TI - HIF2alpha Antagonism Has Antitumor Activity in Advanced ccRCC. AB - The HIF2alpha antagonist PT2385 achieved responses in 14% of patients with heavily pretreated ccRCC. PMID- 29330267 TI - Case of acute severe postpartum urinary incontinence: an extravesical subsphincteric prolapsed ureterocoele. AB - A 32-year-old woman presents to outpatients 10 days postpartum, with symptoms of an intermittent vaginal lump and urinary incontinence. Vaginal examination revealed no demonstrable prolapse or stress incontinence. A swelling in the bladder was noted during an antenatal scan suggesting a ureterocoele. She was referred for pelvic floor physiotherapy in the first instance. Forty-eight hours later, she represented to casualty with discomforting vaginal lump symptoms and continuous urinary incontinence. At this stage on vaginal inspection, there was an evident dusky lump emerging from the urethra with continuous incontinence. An extravesical subsphincteric prolapsed ureterocoele was evident, 5 cm beyond the external urethral meatus. The diagnosis was confirmed with an MRI scan which demonstrated the prolapsed obstructing ureterocoele causing significant left sided hydroureteronephrosis. The ureterocoele was managed with a cystoscopy and transurethral incision of the ureterocoele under anaesthesia, which facilitated drainage and resolution. At 3-month postoperatively, the patient remains continent and satisfied. PMID- 29330268 TI - Pelvic and buttock hypoplasia reconstructed with anatomical breast implants. AB - Radiation therapy is used in the management of a number of childhood cancers and can have significant effects on skeletal growth. We present the case of a 35-year old woman who developed a hypoplastic pelvis and buttocks following radiotherapy for rhabdomyosarcoma of the vagina at the age of 2. At the age of 25, the patient underwent bilateral buttock augmentation with a two-stage reconstruction using tissue expansion followed by definitive augmentation with anatomical breast implant insertion. The patient continues to have a satisfactory outcome 10 years following reconstruction, having undergone a single uplift procedure and exchange of implants through the original incision 9 years postoperatively. This case represents a unique reconstructive challenge to plastic surgeons and was successfully managed with a novel approach. PMID- 29330269 TI - Central nervous system graft-versus-host disease (CNS-GvHD) after allogeneic haematopoietic stem cell transplantation. AB - A 60-year-old man presented with impaired consciousness and psychomotor agitation after a second allogeneic haematopoietic stem cell transplantation (HSCT) from a matched unrelated donor for acute myeloid leukaemia. Clinical, biological and radiological evidence suggested a diagnosis of central nervous system graft versus-host disease (CNS-GvHD). After intrathecal infusion of methylprednisolone, the clinical symptoms as well as the radiological abnormalities disappeared. The present report illustrates the difficulties in the diagnosis and the management of CNS-GvHD, a very rare and still challenging neurological complication that can occur after allogeneic HSCT. PMID- 29330270 TI - Cutis marmorata telangiectatica congenita and major lower limb asymmetry. AB - A 39-week-old male newborn presented at birth with atrophic erythematous and purpuric skin lesions, in a typical right-sided segmental distribution. Lesions were persistent and unaffected by rewarming in the postpartum period. Postnatal echocardiogram showed a predominance of the right cavities and an upper atrial septal defect. Cerebral and abdominal ultrasound were normal along with ophthalmological examination. On follow-up, lower limbs asymmetry was noted. The right lower limb was shorter in length and had a smaller diameter. At 6 months, the right lower limb was 1.5 cm shorter than the left, most likely related to nutritive vessels malformations. The discrepancy was even more pronounced at the age of 9 months. This leg-length asymmetry can lead to severe functional limitations in the future. PMID- 29330271 TI - Vitamin B12 deficiency: unusual cause of jaundice in an adolescent. AB - Vitamin B12 deficiency in vegans is a known cause of megaloblastic anaemia. We report an adolescent girl who presented with jaundice and weight loss for 6 months secondary to vitamin B12 deficiency, leading to megaloblastic anaemia. Replacement with vitamin B12 reversed her symptoms, resulting in weight gain, and normalised her haemoglobin, red blood cell morphology, bilirubin levels and serum vitamin B12 levels. PMID- 29330272 TI - Spontaneous splenic rupture as a rare complication of G-CSF injection. AB - Splenic rupture is an infrequent and underdiagnosed side effect of granylocyte colony-stimulating factor (G-CSF). We report the case of a 54-year-old woman with brain and bone metastasis in a lung adenocarcinoma who was admitted for faintness 28 days after a G-CSF injection. Abdominal CT scan confirmed the diagnosis of splenic rupture. A conservative treatment was chosen using a peritoneal cleansing during laparoscopic surgery. Clinicians should be aware of this rare toxicity as it could be severe, but easily reversible using appropriate surgical treatment. Even if prognosis remains poor for patients with lung cancer, invasive procedures could be considered in this rapidly evolving setting, especially in case of reversible adverse event. PMID- 29330273 TI - Rheumatoid disease: an unusual cause of relapsing meningoencephalitis. AB - A 73-year-old man presented with three episodes of dysphasia and disinhibited behaviour, a single seizure and transient ischaemic attack-like events characterised by right arm and/or leg weakness. These episodes were separated by month-long asymptomatic intervals. Medical history included rheumatoid arthritis, which was clinically quiescent on leflunomide.Repeated cerebrospinal fluid examination showed a persistent lymphocytosis with mildly reduced glucose and elevated protein; oligoclonal bands and viral PCR were negative. MRI of the brain was initially normal, but 7 months after initial presentation revealed meningeal enhancement with bifrontal cortical hyperintensities on T2/fluid-attenuated inversion recovery. Brain biopsy demonstrated necrotising granulomatous meningitis with mixed T cell and B cell infiltrates and without evidence of vasculitis or infection. Serum anticyclic citrullinated peptide antibodies were strongly positive.The diagnosis of rheumatoid meningoencephalitis was made on the basis of brain biopsy findings and serological evidence of active rheumatoid disease. Steroids and rituximab therapy were started leading to clinical stabilisation. PMID- 29330274 TI - Cerebrofacial arteriovenous metameric syndrome with hypopituitarism: a rare association. AB - Case of cerebrofacial arteriovenous metameric syndrome (CAMS) in a 9-year-old boy is described with arteriovenous malformation simultaneously involving the brain and face, with characteristic CAMS type 1 and 2 involvement. This patient demonstrates the wide spectrum of clinical manifestations of CAMS, and in this particular case, the patient exhibits features of hypopituitarism-an association that was not previously described in the literature to our knowledge. Awareness of the underlying embryological abnormality and recognition of resultant clinical and radiological presentations are paramount for diagnosis and treatment. PMID- 29330275 TI - Case of chest pain in a young man. AB - A young man with a history of smoking presented with acute-onset chest pain after lifting weights. He also noticed a change in his voice, tightness in his neck and difficulty breathing. A chest radiograph showed soft tissue emphysema in the neck. A CT scan of the chest revealed moderate amount of pneumomediastinum tracking into the neck and down to the diaphragm. He was haemodynamically stable and had no hypoxia or dysphagia. He was monitored for 48 hours and discharged home after resolution of his symptoms. A chest radiograph repeated after 6 weeks was normal. PMID- 29330276 TI - Cutaneous Mycobacterium massiliense infection from tattooing: a common yet under reported and persistent epidemic hazard for dermatologists. AB - Tattoo popularity continues to rise, with 3 in 10 Americans bearing at least one. Among tattoo complications, non-tuberculous mycobacteria (NTM) has emerged as a global public health concern. NTM infections associated with tattooing of immunocompetent individuals have occurred as sporadic cases and community outbreaks. Water sources are considered the major pathogenic reservoirs. Tattoo related inoculation has been linked to contamination of ink, either during the manufacturing process or during dilution of black ink using non-sterile water. NTM infections have also been documented in a number of cosmetic and surgical procedures, including cutaneous surgery, Mohs micrographic surgery, mesotherapy, liposuction and laser resurfacing. NTM inoculation through exposure to contaminated water or non-sterile instruments remains a challenge for dermatologists and risk to patients. We reported a case of cutaneous Mycobacterium massiliense infection following tattoo placement. This report underscores the importance of clinicians to consider NTM infections in the differential diagnosis of procedure-related reactions. PMID- 29330277 TI - Bancroftian filariasis associated with male sterility. PMID- 29330278 TI - Multiple cranial nerve palsies secondary to a recurrence of Hansen's disease. PMID- 29330279 TI - Rare cause of isolated severe coagulation failure in cirrhosis: traditional healing with fenugreek. AB - Patients with cirrhosis develop decompensation events during the natural history of the disease that encompass ascites, variceal bleeding, hepatic encephalopathy and jaundice. Coagulation failure, defined using the international normalised ratio, even though not a decompensation event, is important in patients with stratifying cirrhosis into those who require liver transplantation for long-term survival. Isolated coagulation failure in cirrhosis is rare and usually occurs with use of anticoagulants in the setting of vascular diseases. We reported the case of a patient with compensated cirrhosis in whom, isolated severe coagulation failure was found to be due to excessive use of fenugreek milk porridge as part of traditional healing. The coagulation failure was promptly reversed with avoidance of fenugreek and supplementation with vitamin K. PMID- 29330280 TI - Cutaneous larva migrans with pulmonary involvement. PMID- 29330281 TI - Hepatic portal venous gas after diving. PMID- 29330282 TI - Population-dependent Intron Retention and DNA Methylation in Breast Cancer. AB - Regulation of gene expression by DNA methylation in gene promoter regions is well studied; however, the effects of methylation in the gene body (exons and introns) on gene expression are comparatively understudied. Recently, hypermethylation has been implicated in the inclusion of alternatively spliced exons; moreover, exon recognition can be enhanced by recruiting the methyl-CpG-binding protein (MeCP2) to hypermethylated sites. This study examines whether the methylation status of an intron is correlated with how frequently the intron is retained during splicing using DNA methylation and RNA sequencing data from breast cancer tissue specimens in The Cancer Genome Atlas. Interestingly, hypomethylation of introns is correlated with higher levels of intron expression in mRNA and the methylation level of an intron is inversely correlated with its retention in mRNA from the gene in which it is located. Furthermore, significant population differences were observed in the methylation level of retained introns. In African-American donors, retained introns were not only less methylated compared to European American donors, but also were more highly expressed. This underscores the need for understanding epigenetic differences in populations and their correlation with breast cancer is an important step toward achieving personalized cancer care.Implications: This research contributes to the understanding of how epigenetic markers in the gene body communicate with the transcriptional machinery to control transcript diversity and differential biological response to changes in methylation status could underlie some of the known, yet unexplained, disparities in certain breast cancer patient populations. Mol Cancer Res; 16(3); 461-9. (c)2018 AACR. PMID- 29330284 TI - Novel Intergenically Spliced Chimera, NFATC3-PLA2G15, Is Associated with Aggressive T-ALL Biology and Outcome. AB - Leukemias are frequently characterized by the expression of oncogenic fusion chimeras that normally arise due to chromosomal rearrangements. Intergenically spliced chimeric RNAs (ISC) are transcribed in the absence of structural genomic changes, and aberrant ISC expression is now recognized as a potential driver of cancer. To better understand these potential oncogenic drivers, high-throughput RNA sequencing was performed on T-acute lymphoblastic leukemia (T-ALL) patient specimens (n = 24), and candidate T-ALL-related ISCs were identified (n = 55; a median of 4/patient). In-depth characterization of the NFATC3-PLA2G15 chimera, which was variably expressed in primary T-ALL, was performed. Functional assessment revealed that the fusion had lower activity than wild-type NFATC3 in vitro, and T-ALLs with elevated NFATC3-PLA2G15 levels had reduced transcription of canonical NFAT pathway genes in vivo Strikingly, high expression of the NFATC3 PLA2G15 chimera correlated with aggressive disease biology in murine patient derived T-ALL xenografts, and poor prognosis in human T-ALL patients. Mol Cancer Res; 16(3); 470-5. (c)2018 AACR. PMID- 29330283 TI - Centriole Overduplication is the Predominant Mechanism Leading to Centrosome Amplification in Melanoma. AB - Centrosome amplification (CA) is common in cancer and can arise by centriole overduplication or by cell doubling events, including the failure of cell division and cell-cell fusion. To assess the relative contributions of these two mechanisms, the number of centrosomes with mature/mother centrioles was examined by immunofluorescence in a tissue microarray of human melanomas and benign nevi (n = 79 and 17, respectively). The centrosomal protein 170 (CEP170) was used to identify centrosomes with mature centrioles; this is expected to be present in most centrosomes with cell doubling, but on fewer centrosomes with overduplication. Using this method, it was determined that the majority of CA in melanoma can be attributed to centriole overduplication rather than cell doubling events. As Polo-like kinase 4 (PLK4) is the master regulator of centriole duplication, the hypothesis that PLK4 overexpression contributes to centriole overduplication was evaluated. PLK4 is significantly overexpressed in melanoma compared with benign nevi and in a panel of human melanoma cell lines (A375, Hs294T, G361, WM35, WM115, 451Lu, and SK-MEL-28) compared with normal human melanocytes. Interestingly, although PLK4 expression did not correlate with CA in most cases, treatment of melanoma cells with a selective small-molecule PLK4 inhibitor (centrinone B) significantly decreased cell proliferation. The antiproliferative effects of centrinone B were also accompanied by induction of apoptosis.Implications: This study demonstrates that centriole overduplication is the predominant mechanism leading to centrosome amplification in melanoma and that PLK4 should be further evaluated as a potential therapeutic target for melanoma treatment. Mol Cancer Res; 16(3); 517-27. (c)2018 AACR. PMID- 29330285 TI - Foxo-dependent Par-4 Upregulation Prevents Long-term Survival of Residual Cells Following PI3K-Akt Inhibition. AB - Tumor recurrence is a leading cause of death and is thought to arise from a population of residual cells that survive treatment. These residual cancer cells can persist, locally or at distant sites, for years or decades. Therefore, understanding the pathways that regulate residual cancer cell survival may suggest opportunities for targeting these cells to prevent recurrence. Previously, it was observed that the proapoptotic protein (PAWR/Par-4) negatively regulates residual cell survival and recurrence in mice and humans. However, the mechanistic underpinnings on how Par-4 expression is regulated are unclear. Here, it is demonstrated that Par-4 is transcriptionally upregulated following treatment with multiple drugs targeting the PI3K-Akt-mTOR signaling pathway, and identify the Forkhead family of transcription factors as mediators of this upregulation. Mechanistically, Foxo3a directly binds to the Par-4 promoter and activates its transcription following inhibition of the PI3K-Akt pathway. This Foxo-dependent Par-4 upregulation limits the long-term survival of residual cells following treatment with therapeutics that target the PI3K-Akt pathway. Taken together, these results indicate that residual breast cancer tumor cell survival and recurrence requires circumventing Foxo-driven Par-4 upregulation and suggest that approaches to enforce Par-4 expression may prevent residual cell survival and recurrence. Mol Cancer Res; 16(4); 599-609. (c)2018 AACR. PMID- 29330287 TI - Targeted AKT Inhibition in Prostate Cancer Cells and Spheroids Reduces Aerobic Glycolysis and Generation of Hyperpolarized [1-13C] Lactate. AB - The PI3K/AKT/mTOR (PAM) signaling pathway is frequently mutated in prostate cancer. Specific AKT inhibitors are now in advanced clinical trials, and this study investigates the effect of MK2206, a non-ATP-competitive inhibitor, on the cellular metabolism of prostate cancer cells. We observed a reduction in cell motility and aerobic glycolysis in prostate cancer cells with treatment. These changes were not accompanied by a reduction in the ratio of high-energy phosphates or a change in total protein levels of enzymes and transporters involved in glycolysis. However, a decreased ratio of NAD+/NADH was observed, motivating the use of hyperpolarized magnetic resonance spectroscopy (HP-MRS) to detect treatment response. Spectroscopic experiments were performed on tumor spheroids, 3D structures that self-organize in the presence of an extracellular matrix. Treated spheroids showed decreased lactate production with on-target inhibition confirmed using IHC, demonstrating that HP-MRS can be used to probe treatment response in prostate cancer spheroids and can provide a biomarker for treatment response. Mol Cancer Res; 16(3); 453-60. (c)2018 AACR. PMID- 29330286 TI - Agonist-induced CXCR4 and CB2 Heterodimerization Inhibits Galpha13/RhoA-mediated Migration. AB - G-protein-coupled receptor (GPCR) heterodimerization has emerged as a means by which alternative signaling entities can be created; yet, how receptor heterodimers affect receptor pharmacology remains unknown. Previous observations suggested a biochemical antagonism between GPCRs, CXCR4 and CB2 (CNR2), where agonist-bound CXCR4 and agonist-bound CB2 formed a physiologically nonfunctional heterodimer on the membrane of cancer cells, inhibiting their metastatic potential in vitro However, the reduced signaling entities responsible for the observed functional outputs remain elusive. This study now delineates the signaling mechanism whereby heterodimeric association between CXCR4 and CB2, induced by simultaneous agonist treatment, results in decreased CXCR4-mediated cell migration, invasion, and adhesion through inhibition of the Galpha13/RhoA signaling axis. Activation of CXCR4 by its cognate ligand, CXCL12, stimulates Galpha13 (GNA13), and subsequently, the small GTPase RhoA, which is required for directional cell migration and the metastatic potential of cancer cells. These studies in prostate cancer cells demonstrate decreased protein expression levels of Galpha13 and RhoA upon simultaneous CXCR4/CB2 agonist stimulation. Furthermore, the agonist-induced heterodimer abrogated RhoA-mediated cytoskeletal rearrangement resulting in the attenuation of cell migration and invasion of an endothelial cell barrier. Finally, a reduction was observed in the expression of integrin alpha5 (ITGA5) upon heterodimerization, supported by decreased cell adhesion to extracellular matrices in vitro Taken together, the data identify a novel pharmacologic mechanism for the modulation of tumor cell migration and invasion in the context of metastatic disease.Implications: This study investigates a signaling mechanism by which GPCR heterodimerization inhibits cancer cell migration. Mol Cancer Res; 16(4); 728-39. (c)2018 AACR. PMID- 29330288 TI - Epigenetically Regulated Chromosome 14q32 miRNA Cluster Induces Metastasis and Predicts Poor Prognosis in Lung Adenocarcinoma Patients. AB - Most lung cancer deaths are related to metastases, which indicates the necessity of detecting and inhibiting tumor cell dissemination. Here, we aimed to identify miRNAs involved in metastasis of lung adenocarcinoma as prognostic biomarkers and therapeutic targets. To that end, lymph node metastasis-associated miRNAs were identified in The Cancer Genome Atlas lung adenocarcinoma patient cohort (sequencing data; n = 449) and subsequently validated by qRT-PCR in an independent clinical cohort (n = 108). Overexpression of miRNAs located on chromosome 14q32 was associated with metastasis in lung adenocarcinoma patients. Importantly, Kaplan-Meier analysis and log-rank test revealed that higher expression levels of individual 14q32 miRNAs (mir-539, mir-323b, and mir-487a) associated with worse disease-free survival of never-smoker patients. Epigenetic analysis including DNA methylation microarray data and bisulfite sequencing validation demonstrated that the induction of 14q32 cluster correlated with genomic hypomethylation of the 14q32 locus. CRISPR activation technology, applied for the first time to functionally study the increase of clustered miRNA levels in a coordinated manner, showed that simultaneous overexpression of 14q32 miRNAs promoted tumor cell migratory and invasive properties. Analysis of individual miRNAs by mimic transfection further illustrated that miR-323b-3p, miR-487a-3p, and miR-539-5p significantly contributed to the invasive phenotype through the indirect regulation of different target genes. In conclusion, overexpression of 14q32 miRNAs, associated with the respective genomic hypomethylation, promotes metastasis and correlates with poor patient prognosis in lung adenocarcinoma.Implications: This study points to chromosome 14q32 miRNAs as promising targets to inhibit tumor cell dissemination and to predict patient prognosis in lung adenocarcinoma. Mol Cancer Res; 16(3); 390-402. (c)2018 AACR. PMID- 29330289 TI - BRCA1 through Its E3 Ligase Activity Regulates the Transcription Factor Oct1 and Carbohydrate Metabolism. AB - The tumor suppressor BRCA1 regulates the DNA damage response (DDR) and other processes that remain incompletely defined. Among these, BRCA1 heterodimerizes with BARD1 to ubiquitylate targets via its N-terminal E3 ligase activity. Here, it is demonstrated that BRCA1 promotes oxidative metabolism by degrading Oct1 (POU2F1), a transcription factor with proglycolytic and tumorigenic effects. BRCA1 E3 ubiquitin ligase mutation skews cells toward a glycolytic metabolic profile while elevating Oct1 protein. CRISPR-mediated Oct1 deletion reverts the glycolytic phenotype. RNA sequencing (RNAseq) confirms deregulation of metabolic genes downstream of Oct1. BRCA1 mediates Oct1 ubiquitylation and degradation, and mutation of two ubiquitylated Oct1 lysines insulates the protein against BRCA1 mediated destabilization. Oct1 deletion in MCF-7 breast cancer cells does not perturb growth in standard culture, but inhibits growth in soft agar and xenograft assays. In primary breast cancer clinical specimens, Oct1 protein levels correlate positively with tumor aggressiveness and inversely with BRCA1. These results identify BRCA1 as an Oct1 ubiquitin ligase that catalyzes Oct1 degradation to promote oxidative metabolism and restrict tumorigenicity. Mol Cancer Res; 16(3); 439-52. (c)2018 AACR. PMID- 29330290 TI - Dual Inhibition of CDK4 and CDK2 via Targeting p27 Tyrosine Phosphorylation Induces a Potent and Durable Response in Breast Cancer Cells. AB - Cyclin-dependent kinase 4/6 (CDK4/6)-specific inhibitors, such as palbociclib, have shown clinical efficacy, but primary or secondary resistance has emerged as a problem. To develop more effective therapeutic approaches, investigation is needed into the mechanisms of resistance or adaption. Here, it is demonstrated that CDK2 compensates for loss of CDK4 activity to rescue palbociclib-arrested breast cancer cells, suggesting that inhibition of both kinases is required to achieve durable response. In addition, a novel strategy is described to inhibit tyrosine phosphorylation of p27Kip1 (CDKN1B) and simultaneously inhibit both CDK2 and CDK4. p27Kip1 is a required assembly factor for cyclin-CDK4 complexes, but it must be phosphorylated on residue Y88 to open or activate the complex. The Brk SH3 peptide, ALT, blocks p27 Y88 phosphorylation, inhibiting CDK4. Nonphosphorylated p27 is no longer a target for ubiquitin-mediated degradation and this stabilized p27 now also inhibits CDK2 activity. Thus, ALT induction inhibits both the kinase that drives proliferation (CDK4) and the kinase that mediates resistance (CDK2), causing a potent and long-lasting cell-cycle arrest. ALT arrests growth of all breast cancer subgroups and synergizes with palbociclib to increase cellular senescence and to cause tumor regression in breast cancer xenograft models. The use of ALT demonstrates that both CDK4 and CDK2 need to be inhibited if long-term efficacy is to be achieved and represents a novel modality to inhibit breast cancer cells.Implications: Modulating tyrosine phosphorylation of p27 impacts both proliferative (CDK4) and resistance (CDK2) mechanisms in breast cancer and suggests that phospho-p27 status may serve as a biomarker for patients that are responsive to CDK4/6 inhibition. Mol Cancer Res; 16(3); 361-77. (c)2018 AACR. PMID- 29330291 TI - Keap1 Inhibits Metastatic Properties of NSCLC Cells by Stabilizing Architectures of F-Actin and Focal Adhesions. AB - Low expression of the tumor suppressor Kelch-like ECH-associated protein 1 (KEAP1) in non-small cell lung cancer (NSCLC) often results in higher malignant biological behavior and poor prognosis; however, the underlying mechanism remains unclear. The present study demonstrates that overexpression of Keap1 significantly suppresses migration and invasion of three different lung cancer cells (A549, H460, and H1299). Highly expressed Keap1, compared with the control, promotes formation of multiple stress fibers with larger mature focal adhesion complexes in the cytoplasm where only fine focal adhesions were observed in the membrane under control conditions. RhoA activity significantly increased when Keap1 was overexpressed, whereas Myosin 9b expression was reduced but could be rescued by proteasome inhibition. Noticeably, mouse tumor xenografts with Keap1 overexpression were smaller in size and less metastatic relative to the control group. Taken together, these results demonstrate that Keap1 stabilizes F-actin cytoskeleton structures and inhibits focal adhesion turnover, thereby restraining the migration and invasion of NSCLC. Therefore, increasing Keap1 or targeting its downstream molecules might provide potential therapeutic benefits for the treatment of patients with NSCLC.Implications: This study provides mechanistic insight on the metastatic process in NSCLC and suggests that Keap1 and its downstream molecules may be valuable drug targets for NSCLC patients. Mol Cancer Res; 16(3); 508-16. (c)2018 AACR. PMID- 29330292 TI - Microenvironment-Derived Regulation of HIF Signaling Drives Transcriptional Heterogeneity in Glioblastoma Multiforme. AB - The evolving and highly heterogeneous nature of malignant brain tumors underlies their limited response to therapy and poor prognosis. In addition to genetic alterations, highly dynamic processes, such as transcriptional and metabolic reprogramming, play an important role in the development of tumor heterogeneity. The current study reports an adaptive mechanism in which the metabolic environment of malignant glioma drives transcriptional reprogramming. Multiregional analysis of a glioblastoma patient biopsy revealed a metabolic landscape marked by varying stages of hypoxia and creatine enrichment. Creatine treatment and metabolism was further shown to promote a synergistic effect through upregulation of the glycine cleavage system and chemical regulation of prolyl-hydroxylase domain. Consequently, creatine maintained a reduction of reactive oxygen species and change of the alpha-ketoglutarate/succinate ratio, leading to an inhibition of HIF signaling in primary tumor cell lines. These effects shifted the transcriptional pattern toward a proneural subtype and reduced the rate of cell migration and invasion in vitroImplications: Transcriptional subclasses of glioblastoma multiforme are heterogeneously distributed within the same tumor. This study uncovered a regulatory function of the tumor microenvironment by metabolism-driven transcriptional reprogramming in infiltrating glioma cells. Mol Cancer Res; 16(4); 655-68. (c)2018 AACR. PMID- 29330294 TI - Establishment of the First Well-differentiated Human Pancreatic Neuroendocrine Tumor Model. AB - Clinical options for systemic therapy of neuroendocrine tumors (NET) are limited. Development of new drugs requires suitable representative in vitro and in vivo model systems. So far, the unavailability of a human model with a well differentiated phenotype and typical growth characteristics has impaired preclinical research in NET. Herein, we establish and characterize a lymph node derived cell line (NT-3) from a male patient with well-differentiated pancreatic NET. Neuroendocrine differentiation and tumor biology was compared with existing NET cell lines BON and QGP-1. In vivo growth was assessed in a xenograft mouse model. The neuroendocrine identity of NT-3 was verified by expression of multiple NET-specific markers, which were highly expressed in NT-3 compared with BON and QGP-1. In addition, NT-3 expressed and secreted insulin. Until now, this well differentiated phenotype is stable since 58 passages. The proliferative labeling index, measured by Ki-67, of 14.6% +/- 1.0% in NT-3 is akin to the original tumor (15%-20%), and was lower than in BON (80.6% +/- 3.3%) and QGP-1 (82.6% +/- 1.0%). NT-3 highly expressed somatostatin receptors (SSTRs: 1, 2, 3, and 5). Upon subcutaneous transplantation of NT-3 cells, recipient mice developed tumors with an efficient tumor take rate (94%) and growth rate (139% +/- 13%) by 4 weeks. Importantly, morphology and neuroendocrine marker expression of xenograft tumors resembled the original human tumor.Implications: High expression of somatostatin receptors and a well-differentiated phenotype as well as a slow growth rate qualify the new cell line as a relevant model to study neuroendocrine tumor biology and to develop new tumor treatments. Mol Cancer Res; 16(3); 496-507. (c)2018 AACR. PMID- 29330295 TI - Epigenetic Reprogramming of Pericentromeric Satellite DNA in Premalignant and Malignant Lesions. AB - Repression of repetitive DNA is important for maintaining genomic stability, but is often perturbed in cancer. For instance, the megabase satellite domain at chromosome 1q12 is a common site of genetic rearrangements, such as translocations and deletions. Polycomb-group proteins can be observed as large subnuclear domains called polycomb bodies, the composition and cellular function of which has remained elusive. This study demonstrates that polycomb bodies are canonical subunits of the multiprotein polycomb repressive complex 1 deposited on 1q12 pericentromeric satellite DNA, which are normally maintained as constitutive heterochromatin by other mechanisms. Furthermore, the data reveal that polycomb bodies are exclusive to premalignant and malignant cells, being absent in normal cells. For instance, polycomb bodies are present in melanocytic cells of nevi and conserved in primary and metastatic melanomas. Deposition of polycomb on the 1q12 satellite DNA in melanoma development correlated with reduced DNA methylation levels. In agreement with this, inhibition of DNA methyltransferases, with the hypomethylating agent guadecitabine (SGI-110), was sufficient for polycomb body formation on pericentromeric satellites in primary melanocytes. This suggests that polycomb bodies form in cancer cells with global DNA demethylation to control the stability of pericentromeric satellite DNA. These results reveal a novel epigenetic perturbation specific to premalignant and malignant cells that may be used as an early diagnostic marker for detection of precancerous changes and a new therapeutic entry point.Implications: Pericentromeric satellite DNA is epigenetically reprogrammed into polycomb bodies as a premalignant event with implications for transcriptional activity and genomic stability. Mol Cancer Res; 16(3); 417-27. (c)2018 AACR. PMID- 29330293 TI - Differential Regulation of LET-7 by LIN28B Isoform-Specific Functions. AB - The RNA-binding protein LIN28B plays an important role in development, stem cell biology, and tumorigenesis. LIN28B has two isoforms: the LIN28B-long and -short isoforms. Although studies have revealed the functions of the LIN28B-long isoform in tumorigenesis, the role of the LIN28B-short isoform remains unclear and represents a major gap in the field. The LIN28B-long and -short isoforms are expressed in a subset of human colorectal cancers and adjacent normal colonic mucosa, respectively. To elucidate the functional and mechanistic aspects of these isoforms, colorectal cancer cells (Caco-2 and LoVo) were generated to either express no LIN28B or the -short or -long isoform. Interestingly, the long isoform suppressed LET-7 expression and activated canonical RAS/ERK signaling, whereas the short isoform did not. The LIN28B-long isoform-expressing cells demonstrated increased drug resistance to 5-fluorouracil and cisplatin through the upregulation of ERCC1, a DNA repair gene, in a LET-7-dependent manner. The LIN28B-short isoform preserved its ability to bind pre-let-7, without inhibiting the maturation of LET-7, and competed with the LIN28B-long isoform for binding to pre-let-7 Coexpression of the short isoform in the LIN28B-long isoform-expressing cells rescued the phenotypes induced by the LIN28B-long isoform.Implications: This study demonstrates the differential antagonistic functions of the LIN28B short isoform against the LIN28B-long isoform through an inability to degrade LET 7, which leads to the novel premise that the short isoform may serve to counterbalance the long isoform during normal colonic epithelial homeostasis, but its downregulation during colonic carcinogenesis may reveal the protumorigenic effects of the long isoform. Mol Cancer Res; 16(3); 403-16. (c)2018 AACR. PMID- 29330296 TI - Tumor Progression Is Mediated by Thymosin-beta4 through a TGFbeta/MRTF Signaling Axis. AB - Although enhanced thymosin beta4 (TMSB4X/Tbeta4) expression is associated with tumor progression and metastasis, its tumor-promoting functions remain largely unknown. Here, it is demonstrated that TGFbeta facilitates Tbeta4 expression and leads to the activation of myocardin-related transcription factors (MRTF), which are coactivators of serum response factor (SRF) and regulate the expression of genes critical for the epithelial-mesenchymal transition (EMT) and tumor metastasis. In murine mammary gland cells (NMuMG), Tbeta4 upregulation is required for full induction of a MRTF-regulated EMT gene expression program after TGFbeta stimulation. Tbeta4 levels are transcriptionally regulated via the novel cis-acting element AGACAAAG, which interacts with Smad and T-cell factor/lymphoid enhancer factor (TCF/LEF) to synergistically activate the Tbeta4 promoter downstream of TGFbeta. Murine skin melanoma cells (B16F0 and B16F1) also show the expression regulation of Tbeta4 by Smad and TCF/LEF. Tbeta4-knockout B16F1 (Tbeta4 KO) clones show significantly diminished expression level of tumor associated genes, which is regulated by the TGFbeta/MRTFs pathway. In multiple human cancers, Tbeta4 levels correlate positively with TGFbeta1 and the tumor associated gene expression levels through processes that respectively depend on TGFbeta receptor 1 (TGFBR1) and MRTF expression. Kaplan-Meier survival analyses demonstrate that high Tbeta4 expression associates with poor prognosis in an SRF expression-dependent manner in several cancers. In mice, Tbeta4 KO clones show significantly decreased experimental metastatic potential; furthermore, ectopic expression of constitutively active MRTF-A fully restores the diminished metastatic activity. In conclusion, the TGFbeta/Tbeta4/MRTF/SRF pathway is critical for metastasis and tumor progression.Implications: These findings define a molecular mechanism underlying a tumor-promoting function of thymosin beta4 through activation of MRTF/SRF signaling. Mol Cancer Res; 16(5); 880-93. (c)2018 AACR. PMID- 29330298 TI - Stemness Is Enhanced in Gastric Cancer by a SET/PP2A/E2F1 Axis. AB - Gastric cancer is the fifth most common malignancy and the third leading cause of cancer-related deaths worldwide. Chemotherapies against gastric cancer often fail, with cancer recurrence due potentially to the persistence of cancer stem cells. This unique subpopulation of cells in tumors possesses the ability to self renew and dedifferentiate. These cancer stem cells are critical for initiation, maintenance, metastasis, and relapse of cancers; however, the molecular mechanisms supporting cancer stemness remain largely unknown. Increased kinase and decreased phosphatase activity are hallmarks of oncogenic signaling. Protein phosphatase 2A (PP2A) functions as a tumor-suppressor enzyme, and elevated levels of SET/I2PP2A, an endogenous PP2A protein inhibitor, are correlated with poor prognosis of several human cancers. Here, it was determined that SET expression was elevated in tumor tissue in a gastric cancer mouse model system, and SET expression was positively correlated with poor survival of human gastric cancer patients. Mechanistically, SET knockdown decreased E2F1 levels and suppressed the stemness of cancer cell lines. Immunoprecipitations show SET associated with the PP2A-B56 complex, and the B56 subunit interacted with the E2F1 transcription factor. Treatment of gastric cancer cells with the SET-targeting drug OP449 increased PP2A activity, decreased E2F1 protein levels, and suppressed stemness of cancer cells. These data indicate that a SET/PP2A/E2F1 axis regulates cancer cell stemness and is a potential target for gastric cancer therapy.Implications: This study highlights the oncogenic role of SET/I2PP2A in gastric cancer and suggests that SET maintains cancer cell stemness by suppressing PP2A activity and stabilizing E2F1. Mol Cancer Res; 16(3); 554-63. (c)2018 AACR. PMID- 29330297 TI - Characterization and Evidence of the miR-888 Cluster as a Novel Cancer Network in Prostate. AB - Prostate cancer afflicts 1 in 7 men and is the second leading cause of male cancer-related deaths in the United States. MicroRNAs (miRNAs), an extensive class of approximately 22 nucleotide noncoding RNAs, are often aberrantly expressed in tissues and fluids from prostate cancer patients, but the mechanisms of how specific miRNAs regulate prostate tumorigenesis and metastasis are poorly understood. Here, miR-888 was identified as a novel prostate factor that promotes proliferation and migration. miR-888 resides within a genomic cluster of 7 miRNA genes (mir-892c, mir-890, mir-888, mir-892a, mir-892b, mir-891b, mir-891a) on human chromosome Xq27.3. Moreover, as miR-888 maps within HPCX1, a locus associated with susceptibility and/or hereditary prostate cancer, it was hypothesized that additional miRNA cluster members also play functional roles in the prostate. Expression analysis determined that cluster members were similarly elevated in metastatic PC3-ML prostate cells and their secreted exosomes, as well as enriched in expressed prostatic secretions urine-derived exosomes obtained from clinical patients with high-grade prostate cancer. In vitro assays revealed that miR-888 cluster members selectively modulated PC3-derived and LNCaP cell proliferation, migration, invasion, and colony formation. Mouse xenograft studies verified miR-888 and miR-891a as pro-oncogenic factors that increased prostate tumor growth in vivo Further analysis validated RBL1, KLF5, SMAD4, and TIMP2 as direct miR-888 targets and that TIMP2 is also coregulated by miR-891a. This study provides the first comprehensive analysis of the entire miR-888 cluster and reveals biological insight.Implications: This work reveals a complex noncoding RNA network in the prostate that could be developed as effective diagnostic and therapeutic tools for advanced prostate cancer. Mol Cancer Res; 16(4); 669-81. (c)2018 AACR. PMID- 29330299 TI - Effects of allelic variations in the human myxovirus resistance protein A on its antiviral activity. AB - Only a minority of patients infected with seasonal influenza A viruses exhibit a severe or fatal outcome of infection, but the reasons for this inter-individual variability in influenza susceptibility are unclear. To gain further insights into the molecular mechanisms underlying this variability, we investigated naturally occurring allelic variations of the myxovirus resistance 1 (MX1) gene coding for the influenza restriction factor MxA. The interferon-induced dynamin like GTPase consists of an N-terminal GTPase domain, a bundle signaling element, and a C-terminal stalk responsible for oligomerization and viral target recognition. We used online databases to search for variations in the MX1 gene. Deploying in vitro approaches, we found that non-synonymous variations in the GTPase domain cause the loss of antiviral and enzymatic activities. Furthermore, we showed that these amino acid substitutions disrupt the interface for GTPase domain dimerization required for the stimulation of GTP hydrolysis. Variations in the stalk were neutral or slightly enhanced or abolished MxA antiviral function. Remarkably, two other stalk variants altered MxA's antiviral specificity. Variations causing the loss of antiviral activity were found only in heterozygous carriers. Interestingly, the inactive stalk variants blocked the antiviral activity of WT MxA in a dominant-negative way, suggesting that heterozygotes are phenotypically MxA-negative. In contrast, the GTPase-deficient variants showed no dominant-negative effect, indicating that heterozygous carriers should remain unaffected. Our results demonstrate that naturally occurring mutations in the human MX1 gene can influence MxA function, which may explain individual variations in influenza virus susceptibility in the human population. PMID- 29330300 TI - Real-time imaging of yeast cells reveals several distinct mechanisms of curing of the [URE3] prion. AB - The [URE3] yeast prion is the self-propagating amyloid form of the Ure2 protein. [URE3] is cured by overexpression of several yeast proteins, including Ydj1, Btn2, Cur1, Hsp42, and human DnaJB6. To better understand [URE3] curing, we used real-time imaging with a yeast strain expressing a GFP-labeled full-length Ure2 construct to monitor the curing of [URE3] over time. [URE3] yeast cells exhibited numerous fluorescent foci, and expression of the GFP-labeled Ure2 affected neither mitotic stability of [URE3] nor the rate of [URE3] curing by the curing proteins. Using guanidine to cure [URE3] via Hsp104 inactivation, we found that the fluorescent foci are progressively lost as the cells divide until they are cured; the fraction of cells that retained the foci was equivalent to the [URE3] cell fraction measured by a plating assay, indicating that the foci were the prion seeds. During the curing of [URE3] by Btn2, Cur1, Hsp42, or Ydj1 overexpression, the foci formed aggregates, many of which were 0.5 MUm or greater in size, and [URE3] was cured by asymmetric segregation of the aggregated seeds. In contrast, DnaJB6 overexpression first caused a loss of detectable foci in cells that were still [URE3] before there was complete dissolution of the seeds, and the cells were cured. We conclude that GFP labeling of full-length Ure2 enables differentiation among the different [URE3]-curing mechanisms, including inhibition of severing followed by seed dilution, seed clumping followed by asymmetric segregation between mother and daughter cells, and seed dissolution. PMID- 29330301 TI - Genetic control of predominantly error-free replication through an acrolein derived minor-groove DNA adduct. AB - Acrolein, an alpha,beta-unsaturated aldehyde, is generated in vivo as the end product of lipid peroxidation and from metabolic oxidation of polyamines, and it is a ubiquitous environmental pollutant. The reaction of acrolein with the N2 of guanine in DNA leads to the formation of gamma-hydroxy-1-N2-propano-2' deoxyguanosine (gamma-HOPdG), which can exist in DNA in a ring-closed or a ring opened form. Here, we identified the translesion synthesis (TLS) DNA polymerases (Pols) that conduct replication through the permanently ring-opened reduced form of gamma-HOPdG ((r) gamma-HOPdG) and show that replication through this adduct is mediated via Rev1/Poleta-, Poliota/Polkappa-, and Poltheta-dependent pathways, respectively. Based on biochemical and structural studies, we propose a role for Rev1 and Poliota in inserting a nucleotide (nt) opposite the adduct and for Pols eta and kappa in extending synthesis from the inserted nt in the respective TLS pathway. Based on genetic analyses and biochemical studies with Poltheta, we infer a role for Poltheta at both the nt insertion and extension steps of TLS. Whereas purified Rev1 and Poltheta primarily incorporate a C opposite (r) gamma HOPdG, Poliota incorporates a C or a T opposite the adduct; nevertheless, TLS mediated by the Poliota-dependent pathway as well as by other pathways occurs in a predominantly error-free manner in human cells. We discuss the implications of these observations for the mechanisms that could affect the efficiency and fidelity of TLS Pols. PMID- 29330302 TI - Controlled dimerization of insulin-like growth factor-1 and insulin receptors reveals shared and distinct activities of holo and hybrid receptors. AB - Breast cancer development and progression are influenced by insulin-like growth factor receptor 1 (IGF1R) and insulin receptor (InsR) signaling, which drive cancer phenotypes such as cell growth, proliferation, and migration. IGF1R and InsR form IGF1R/InsR hybrid receptors (HybRs) consisting of one molecule of IGF1R and one molecule of InsR. The specific signaling and functions of HybR are largely unknown, as HybR is activated by both IGF1 and insulin, and no cellular system expresses HybR in the absence of holo-IGF1R or holo-InsR. Here we studied the role of HybR by constructing inducible chimeric receptors and compared HybR signaling with that of holo-IGF1R and holo-InsR. We cloned chemically inducible chimeric IGF1R and InsR constructs consisting of the extracellular domains of the p75 nerve growth factor receptor fused to the intracellular beta subunit of IGF1R or InsR and a dimerization domain. Dimerization with the drugs AP20187 or AP21967 allowed specific and independent activation of holo-IGF1R, holo-InsR, or HybR, resulting in activation of the PI3K pathway. Holo-IGF1R and HybR both promoted cell proliferation and glucose uptake, whereas holo-InsR only promoted glucose uptake, and only holo-IGF1R showed anti-apoptotic effects. We also found that the three receptors differentially regulated gene expression: holo-IGF1R and HybR up regulated EGR3; holo-InsR specifically down-regulated JUN and BCL2L1; holo-InsR down-regulated but HybR up-regulated HK2; and HybR specifically up-regulated FHL2, ITGA6, and PCK2. Our findings suggest that, when expressed and activated in mammary epithelial cells, HybR acts in a manner similar to IGF1R and support further investigation of the role of HybR in breast cancer. PMID- 29330303 TI - Mammalian amyloidogenic proteins promote prion nucleation in yeast. AB - Fibrous cross-beta aggregates (amyloids) and their transmissible forms (prions) cause diseases in mammals (including humans) and control heritable traits in yeast. Initial nucleation of a yeast prion by transiently overproduced prion forming protein or its (typically, QN-rich) prion domain is efficient only in the presence of another aggregated (in most cases, QN-rich) protein. Here, we demonstrate that a fusion of the prion domain of yeast protein Sup35 to some non QN-rich mammalian proteins, associated with amyloid diseases, promotes nucleation of Sup35 prions in the absence of pre-existing aggregates. In contrast, both a fusion of the Sup35 prion domain to a multimeric non-amyloidogenic protein and the expression of a mammalian amyloidogenic protein that is not fused to the Sup35 prion domain failed to promote prion nucleation, further indicating that physical linkage of a mammalian amyloidogenic protein to the prion domain of a yeast protein is required for the nucleation of a yeast prion. Biochemical and cytological approaches confirmed the nucleation of protein aggregates in the yeast cell. Sequence alterations antagonizing or enhancing amyloidogenicity of human amyloid-beta (associated with Alzheimer's disease) and mouse prion protein (associated with prion diseases), respectively, antagonized or enhanced nucleation of a yeast prion by these proteins. The yeast-based prion nucleation assay, developed in our work, can be employed for mutational dissection of amyloidogenic proteins. We anticipate that it will aid in the identification of chemicals that influence initial amyloid nucleation and in searching for new amyloidogenic proteins in a variety of proteomes. PMID- 29330304 TI - Efficient prion disease transmission through common environmental materials. AB - Prion diseases are a group of fatal neurodegenerative diseases associated with a protein-based infectious agent, termed prion. Compelling evidence suggests that natural transmission of prion diseases is mediated by environmental contamination with infectious prions. We hypothesized that several natural and man-made materials, commonly found in the environments of wild and captive animals, can bind prions and may act as vectors for disease transmission. To test our hypothesis, we exposed surfaces composed of various common environmental materials (i.e. wood, rocks, plastic, glass, cement, stainless steel, aluminum, and brass) to hamster-adapted 263K scrapie prions and studied their attachment and retention of infectivity in vitro and in vivo Our results indicated that these surfaces, with the sole exception of brass, efficiently bind, retain, and release prions. Prion replication was studied in vitro using the protein misfolding cyclic amplification technology, and infectivity of surface-bound prions was analyzed by intracerebrally challenging hamsters with contaminated implants. Our results revealed that virtually all prion-contaminated materials transmitted the disease at high rates. To investigate a more natural form of exposure to environmental contamination, we simply housed animals with large contaminated spheres made of the different materials under study. Strikingly, most of the hamsters developed classical clinical signs of prion disease and typical disease-associated brain changes. Our findings suggest that prion contamination of surfaces commonly present in the environment can be a source of disease transmission, thus expanding our understanding of the mechanisms for prion spreading in nature. PMID- 29330305 TI - Restricted processing of CD16a/Fc gamma receptor IIIa N-glycans from primary human NK cells impacts structure and function. AB - CD16a/Fc gamma receptor IIIa is the most abundant antibody Fc receptor expressed on human natural killer (NK) cells and activates a protective cytotoxic response following engagement with antibody clustered on the surface of a pathogen or diseased tissue. Therapeutic monoclonal antibodies (mAbs) with greater Fc mediated affinity for CD16a show superior therapeutic outcome; however, one significant factor that promotes antibody-CD16a interactions, the asparagine linked carbohydrates (N-glycans), remains undefined. Here, we purified CD16a from the primary NK cells of three donors and identified a large proportion of hybrid (22%) and oligomannose N-glycans (23%). These proportions indicated restricted N glycan processing and were unlike those of the recombinant CD16a forms, which have predominantly complex-type N-glycans (82%). Tethering recombinant CD16a to the membrane by including the transmembrane and intracellular domains and via coexpression with the Fc epsilon receptor gamma-chain in HEK293F cells was expected to produce N-glycoforms similar to NK cell-derived CD16a but yielded N glycoforms different from NK cell-derived CD16a and recombinant soluble CD16a. Of note, these differences in CD16a N-glycan composition affected antibody binding: CD16a with oligomannose N-glycans bound IgG1 Fc with 12-fold greater affinity than did CD16a having primarily complex-type and highly branched N-glycans. The changes in binding activity mirrored changes in NMR spectra of the two CD16a glycoforms, indicating that CD16a glycan composition also affects the glycoprotein's structure. These results indicated that CD16a from primary human NK cells is compositionally, and likely also functionally, distinct from commonly used recombinant forms. Furthermore, our study provides critical evidence that cell lineage determines CD16a N-glycan composition and antibody-binding affinity. PMID- 29330306 TI - An Rb family-independent E2F3 transcription factor variant impairs STAT5 signaling and mammary gland remodeling during pregnancy in mice. AB - E2F transcription factors are regulated by binding to the retinoblastoma (Rb) tumor suppressor family of proteins. Previously, we reported an E2FLQ mutation that disrupts the binding with Rb proteins without affecting the transcriptional activity of E2F. We also showed that mouse embryonic fibroblasts with an E2F3LQ mutation exhibit increased E2F activity and more rapid cell proliferation. In this report, we analyzed E2F3LQ mice to further characterize the in vivo consequences of Rb family-independent E2F3 activity. We found that homozygous E2F3LQ mice were viable and had no obvious developmental defects or tumor growth. Our results also indicated that E2F3LQ cells largely retain normal control of cell proliferation in vivo However, female E2F3LQ mice had partial nursing defects. Examination of the E2F3LQ mammary glands revealed increased caveolin-1 (CAV1) expression, reduced prolactin receptor/Stat5 signaling, and impaired pregnancy-induced cell proliferation and differentiation. Of note, ChIP experiments disclosed that E2F3 binds the CAV1 promoter. Furthermore, E2F3 overexpression induced CAV1 expression, and CRISPR/CAS9-mediated E2F3 knockout reduced CAV1 levels and also increased prolactin receptor-induced Stat5 signaling in mammary epithelial cells. Our results suggest that the Rb family-independent E2F3 LQ variant inhibits pregnancy-induced mammary gland cell proliferation and differentiation by up-regulating CAV1 expression and inhibiting Stat5 signaling. PMID- 29330307 TI - Evidence suggests that germline RNF43 mutations are a rare cause of serrated polyposis. PMID- 29330308 TI - Survival outcomes of primary cutaneous T-cell lymphoma in HIV-infected patients: a national population-based study. AB - This study aimed to investigate clinical characteristics and survival outcomes of primary cutaneous T-cell lymphoma (CTCL) in HIV-infected and non-HIV-infected patients. All data were from the Surveillance, Epidemiology, and End Results program, 1973-2013, of the U.S. National Cancer Institute. Data of 318 HIV infected patients and 1272 non-HIV-infected patients with primary CTCL were analyzed. Endpoints were overall survival and cancer-specific mortality. Independent variables included demographics, pre-existing malignancy, treatments, and environmental factors. Among 8823 patients with CTCL, 318 (3.60 per cent) were HIV-infected and 8505 (96.40 per cent) were not. 318 HIV-infected patients and 1272 non-HIV-infected patients selected by matching diagnosis dates were analyzed, including 941 (59.2 per cent) males and 649 (40.8 per cent) females with mean age 58.8 years. HIV-infected patients with CTCL had higher survival and significantly lower risk of overall mortality than non-HIV-infected patients (adjusted HR 0.37, 95 per cent CI 0.24 to 0.59, P<0.001). Non-HIV-infected, age and black race were significant risk factors for overall mortality. Age and race are independent risk factors for overall mortality in primary CTCL individuals, and HIV-infected status is an independent protective factor, suggesting that advanced antiretroviral therapy restores immunity and prolongs survival in HIV infected patients with CTCL. PMID- 29330309 TI - Poverty, a risk factor overlooked: a cross-sectional cohort study comparing poverty rate and cardiovascular disease outcomes in the state of Florida. AB - The purpose of this study is to examine the relationship between poverty rate and heart disease in our state. A cross-sectional data analysis was performed using figures provided by the Center for Disease Control's Interactive Atlas of Heart Disease and Stroke Tables. Spearman's correlations and simple regressions were used to determine if there was a relationship between poverty and cardiovascular hospitalization rate and cardiovascular death rate. There was a positive monotonic correlation between poverty rate and cardiovascular hospitalization rate (Rho=0.384, P=0.001). There was a positive monotonic correlation between poverty rate and cardiovascular death rate (Rho=0.646, P<0.0001). County poverty rate had a statistically significant positive relationship with cardiovascular hospitalization and cardiovascular mortality in the state of Florida. PMID- 29330310 TI - Social determinants of community-level human papillomavirus vaccination coverage in aschool-based vaccination programme. AB - OBJECTIVE: To assess social patterns in human papillomavirus (HPV) vaccine coverage in a school-based, government-funded vaccination programme located within a single-payer universal healthcare system. DESIGN: We conducted a cross sectional analysis of HPV vaccine uptake data for the 2013-2014 school year for 131 local authorities in England, and then evaluated the association between vaccine uptake and socioeconomic status at the aggregate level. DATA SOURCES: HPV vaccination coverage data from Public Health England's vaccine uptake guidance and the UK's March 2011 Census. MAIN OUTCOME MEASURES: We measured three-dose local authority-level vaccine series initiation to completion. RESULTS: We found that in local authorities where there are more high-income families, the vaccination rate is lower than in local authorities with more low-income families. Local authorities with a higher percentage of whites, compared with non whites, had higher HPV vaccination rates. Additionally, local authorities with more non-migrants had higher rates of vaccination. Local authorities with more education deprivation had higher rates of vaccination. Local authorities' higher proportions of high-status occupations had worse vaccination coverage. In bivariate analyses across all the socioeconomic indicators, a 1 SD change in the indicators was associated with about a 2.25 percentage point decrease (for income, education and occupation) or increase (for race and migrant composition) in HPV dose coverage in the local authority. In multivariable analyses, only race remained as a significant predictor of HPV coverage at the local authority level. CONCLUSIONS: Across all three doses, there are notable variations by socioeconomic status, with steep reverse gradients in three socioeconomic indicators. More quantitative and qualitative research needs to be conducted to determine the effects of the 2014 transition from a three-dose regimen to two dose regimen on vaccination coverage, especially in groups that experience lower rates of vaccination. PMID- 29330311 TI - Necrosis in anti-SRP+ and anti-HMGCR+myopathies: Role of autoantibodies and complement. AB - OBJECTIVE: To characterize muscle fiber necrosis in immune-mediated necrotizing myopathies (IMNM) with anti-signal recognition particle (SRP) or anti-3-hydroxy-3 methylglutarylcoenzyme A reductase (HMGCR) antibodies and to explore its underlying molecular immune mechanisms. METHODS: Muscle biopsies from patients with IMNM were analyzed and compared to biopsies from control patients with myositis. In addition to immunostaining and reverse transcription PCR on muscle samples, in vitro immunostaining on primary muscle cells was performed. RESULTS: Creatine kinase levels and muscle regeneration correlated with the proportion of necrotic fibers (r = 0.6, p < 0.001). CD68+iNOS+ macrophages and a Th-1 immune environment were chiefly involved in ongoing myophagocytosis of necrotic fibers. T-cell densities correlated with necrosis but no signs of cytotoxicity were detected. Activation of the classical pathway of the complement cascade, accompanied by deposition of sarcolemmal immunoglobulins, featured involvement of humoral immunity. Presence of SRP and HMGCR proteins on altered myofibers was reproduced on myotubes exposed to purified patient-derived autoantibodies. Finally, a correlation between sarcolemmal complement deposits and fiber necrosis was observed (r = 0.4 and p = 0.004). Based on these observations, we propose to update the pathologic criteria of IMNM. CONCLUSION: These data further corroborate the pathogenic role of anti-SRP and anti-HMGCR autoantibodies in IMNM, highlighting humoral mechanisms as key players in immunity and myofiber necrosis. PMID- 29330313 TI - C-reactive protein and efficacy of antiplatelet therapy in (intracranial) atherosclerosis. PMID- 29330314 TI - Developmental Disability at School Age and Difficulty Obtaining Follow-up Data. AB - BACKGROUND: The relationship of developmental disability rates with difficulty obtaining follow-up data is unclear. With this study, we aimed to determine if children who attended research follow-up assessments with more difficulty had more disability at school age, compared with those who attended with less difficulty, and to establish the relationship between follow-up and disability rates. METHODS: Two groups, comprising 219 consecutive survivors born at <28 weeks' gestation or at <1000 g birth weight in the state of Victoria, Australia, in 2005, and 218 term-born, normal birth weight controls were assessed at 8 years of age for neurodevelopmental disability (any of IQ <-1 SD, cerebral palsy, blindness, or deafness). Children were classified as either more or less difficult to get to attend by research nurses involved in the study. RESULTS: The follow-up rate was 87% for both groups. Overall, children who attended with more difficulty had higher rates of neurodevelopmental disability (42%; 19 of 45) than those who attended with less difficulty (20%; 66 of 328) (odds ratio: 3.09, 95% confidence interval: 1.58 to 6.01; P = .001). As the follow-up rate rose among the 3 individual hospitals involved in the assessments, so did the rate of neurodevelopmental disability (P = .025). CONCLUSIONS: Children who attend with more difficulty have higher rates of neurodevelopmental disability at school age than those who attend with less difficulty, and disability rates rise with higher follow-up rates. Rates of neurodevelopmental disability will be underestimated if researchers are not persistent enough to obtain high follow-up rates. PMID- 29330312 TI - High-sensitive C-reactive protein and dual antiplatelet in intracranial arterial stenosis. AB - OBJECTIVE: To determine the relationship of high-sensitive C-reactive protein (hsCRP) and the efficacy and safety of dual antiplatelet therapy in patients with and without intracranial arterial stenosis (ICAS) in the Clopidogrel in High-Risk Patients with Acute Non-disabling Cerebrovascular Events (CHANCE) trial. METHODS: A subgroup of 807 patients with both magnetic resonance angiography images and hsCRP measurement was analyzed. Cox proportional hazards models were used to assess the interaction of hsCRP levels with the effects of dual and single antiplatelet therapy. RESULTS: A total of 358 (44.4%) patients had ICAS and 449 (55.6%) did not. The proportion of patients with elevated hsCRP levels was higher in the ICAS group than in the non-ICAS group (40.2% vs 30.1%, p = 0.003). There was significant interaction between hsCRP and the 2 antiplatelet therapy groups in their effects on recurrent stroke after adjustment for confounding factors in the patients with ICAS (p = 0.012), but not in those without (p = 0.256). Compared with aspirin alone, clopidogrel plus aspirin significantly reduced the risk of recurrent stroke only in the patients with ICAS and nonelevated hsCRP levels (adjusted hazard ratio 0.27; 95% confidence interval 0.11 to 0.69; p = 0.006). Similar results were observed for composite vascular events. No significant difference in bleeding was found. CONCLUSIONS: Presence of both ICAS and nonelevated hsCRP levels may predict better response to dual antiplatelet therapy in reducing new stroke and composite vascular events in minor stroke or high-risk TIA patients. Further large-scale randomized and controlled clinical trials are needed to confirm this finding. PMID- 29330315 TI - Outcome of Preterm Infants With Postnatal Cytomegalovirus Infection. AB - OBJECTIVES: To assess whether preterm infants with postnatal cytomegalovirus infection develop neurologic sequelae in early childhood. METHODS: Infants <32 weeks' gestation were prospectively screened for cytomegalovirus (CMV) at term equivalent age. Neurodevelopment was compared between CMV-positive and CMV negative infants by using the Griffiths Mental Development Scales (GMDS) at 16 months' corrected age (CA); the Bayley Scales of Infant and Toddler Development, Third Edition or the GMDS at 24 to 30 months' CA; and the Wechsler Preschool and Primary Scale of Intelligence, Third Edition and Movement Assessment Battery for Children, Second Edition at 6 years of age. At 6 years old, hearing was assessed in CMV-positive children. RESULTS: Neurodevelopment was assessed in 356 infants at 16 months' CA, of whom 49 (14%) were infected and 307 (86%) were noninfected. Infected infants performed significantly better on the GMDS locomotor scale. There were no differences at 24 to 30 months' CA on the Bayley Scales of Infant and Toddler Development, Third Edition or GMDS. At 6 years of age, infected children scored lower on the Wechsler Preschool and Primary Scale of Intelligence, Third Edition, but mean scores were within normal range, reaching significance only in verbal IQ (96 [SD 17] vs 103 [SD 15] points; P = .046). Multiple regression indicated no impact of CMV status but significant influence of maternal education and ethnicity on verbal IQ. No significant differences in motor development were found and none of the infected children developed sensorineural hearing loss. CONCLUSIONS: In this cohort study, postnatal cytomegalovirus infection in preterm children did not have an adverse effect on neurodevelopment within the first 6 years of life. PMID- 29330316 TI - Myosin-1C uses a novel phosphoinositide-dependent pathway for nuclear localization. AB - Accurate control of macromolecule transport between nucleus and cytoplasm underlines several essential biological processes, including gene expression. According to the canonical model, nuclear import of soluble proteins is based on nuclear localization signals and transport factors. We challenge this view by showing that nuclear localization of the actin-dependent motor protein Myosin-1C (Myo1C) resembles the diffusion-retention mechanism utilized by inner nuclear membrane proteins. We show that Myo1C constantly shuttles in and out of the nucleus and that its nuclear localization does not require soluble factors, but is dependent on phosphoinositide binding. Nuclear import of Myo1C is preceded by its interaction with the endoplasmic reticulum, and phosphoinositide binding is specifically required for nuclear import, but not nuclear retention, of Myo1C. Our results therefore demonstrate, for the first time, that membrane association and binding to nuclear partners is sufficient to drive nuclear localization of also soluble proteins, opening new perspectives to evolution of cellular protein sorting mechanisms. PMID- 29330317 TI - tRNA production links nutrient conditions to the onset of sexual differentiation through the TORC1 pathway. AB - Target of rapamycin (TOR) kinase controls cell growth and metabolism in response to nutrient availability. In the fission yeast Schizosaccharomyces pombe, TOR complex 1 (TORC1) promotes vegetative growth and inhibits sexual differentiation in the presence of ample nutrients. Here, we report the isolation and characterization of mutants with similar phenotypes as TORC1 mutants, in that they initiate sexual differentiation even in nutrient-rich conditions. In most mutants identified, TORC1 activity is downregulated and the mutated genes are involved in tRNA expression or modification. Expression of tRNA precursors decreases when cells undergo sexual differentiation. Furthermore, overexpression of tRNA precursors prevents TORC1 downregulation upon nitrogen starvation and represses the initiation of sexual differentiation. Based on these observations, we propose that tRNA precursors operate in the S. pombe TORC1 pathway to switch growth mode from vegetative to reproductive. PMID- 29330318 TI - Shifting meiotic to mitotic spindle assembly in oocytes disrupts chromosome alignment. AB - Mitotic spindles assemble from two centrosomes, which are major microtubule organizing centers (MTOCs) that contain centrioles. Meiotic spindles in oocytes, however, lack centrioles. In mouse oocytes, spindle microtubules are nucleated from multiple acentriolar MTOCs that are sorted and clustered prior to completion of spindle assembly in an "inside-out" mechanism, ending with establishment of the poles. We used HSET (kinesin-14) as a tool to shift meiotic spindle assembly toward a mitotic "outside-in" mode and analyzed the consequences on the fidelity of the division. We show that HSET levels must be tightly gated in meiosis I and that even slight overexpression of HSET forces spindle morphogenesis to become more mitotic-like: rapid spindle bipolarization and pole assembly coupled with focused poles. The unusual length of meiosis I is not sufficient to correct these early spindle morphogenesis defects, resulting in severe chromosome alignment abnormalities. Thus, the unique "inside-out" mechanism of meiotic spindle assembly is essential to prevent chromosomal misalignment and production of aneuploidy gametes. PMID- 29330319 TI - Correction: A Plant-Derived Nucleic Acid Reconciles Type I IFN and a Pyroptotic like Event in Immunity against Respiratory Viruses. PMID- 29330320 TI - Cutting Edge: Homeostasis of Innate Lymphoid Cells Is Imbalanced in Psoriatic Arthritis. AB - Innate lymphoid cells (ILC) have a high potency for cytokine production independent of specific Ag stimulation. Imbalance of ILC subsets may influence cytokine production in humans and hence be associated with the development of inflammatory disease. Evidence for an imbalance of ILC homeostasis in human disease, however, is very limited to date. In this study we show that psoriatic arthritis (PsA), a severe disease of the joints depending on the activation of the IL-23/IL-17 pathway, is characterized by a skewed ILC homeostasis. Circulating ILC3s as potent source of IL-17/IL-22 were elevated in active PsA, whereas ILC2s, which produce proresolving cytokines, were decreased. The ILC2/ILC3 ratio was significantly correlated with clinical disease activity scores and the presence of imaging signs of joint inflammation and bone damage. Multivariable analysis showed that a high ILC2/ILC3 ratio is associated with remission in PsA, suggesting that specific alterations of ILC homeostasis control disease activity in PsA. PMID- 29330321 TI - Osteopontin Promotes Protective Antigenic Tolerance against Experimental Allergic Airway Disease. AB - In the context of inflammation, osteopontin (Opn) is known to promote effector responses, facilitating a proinflammatory environment; however, its role during antigenic tolerance induction is unknown. Using a mouse model of asthma, we investigated the role of Opn during antigenic tolerance induction and its effects on associated regulatory cellular populations prior to disease initiation. Our experiments demonstrate that Opn drives protective antigenic tolerance by inducing accumulation of IFN-beta-producing plasmacytoid dendritic cells, as well as regulatory T cells, in mediastinal lymph nodes. We also show that, in the absence of TLR triggers, recombinant Opn, and particularly its SLAYGLR motif, directly induces IFN-beta expression in Ag-primed plasmacytoid dendritic cells, which renders them extra protective against induction of allergic airway disease upon transfer into recipient mice. Lastly, we show that blockade of type I IFNR prevents antigenic tolerance induction against experimental allergic asthma. Overall, we unveil a new role for Opn in setting up a tolerogenic milieu boosting antigenic tolerance induction, thus leading to prevention of allergic airway inflammation. Our results provide insight for the future design of immunotherapies against allergic asthma. PMID- 29330322 TI - Cutting Edge: Piezo1 Mechanosensors Optimize Human T Cell Activation. AB - TCRs recognize peptides on MHC molecules and induce downstream signaling, leading to activation and clonal expansion. In addition to the strength of the interaction of TCRs with peptides on MHC molecules, mechanical forces contribute to optimal T cell activation, as reflected by the superior efficiency of immobilized TCR-cross-linking Abs compared with soluble Abs in TCR triggering, although a dedicated mechanotransduction module is not identified. We found that the professional mechanosensor protein Piezo1 is critically involved in human T cell activation. Although a deficiency in Piezo1 attenuates downstream events on ex vivo TCR triggering, a Piezo1 agonist can obviate the need to immobilize TCR cross-linking Abs. Piezo1-driven Ca2+ influx, leading to calpain activation and organization of cortical actin scaffold, links this mechanosensor to optimal TCR signaling. Thus, we discovered a hitherto unknown regulatory mechanism for human T cell activation and provide the first evidence, to our knowledge, for the involvement of Piezo1 mechanosensors in immune regulation. PMID- 29330324 TI - Betaine Ameliorates Experimental Autoimmune Encephalomyelitis by Inhibiting Dendritic Cell-Derived IL-6 Production and Th17 Differentiation. AB - IL-17-secreting T cells (Th17 cells) play a pathogenic role in multiple autoimmune diseases, including multiple sclerosis (MS), and dendritic cell (DC) derived cytokines play pivotal roles in promoting the differentiation of naive CD4+ T cells into Th cell subsets (Th1 and Th17). Therefore, small molecules blocking the key cytokines produced by DCs will be beneficial in MS. In this article, we report that betaine treatment ameliorates MS pathogenesis by inhibiting DC-derived IL-6 production and Th17 differentiation. Using experimental autoimmune encephalomyelitis, a widely used mouse model of MS, we found that, compared with the vehicle-treated group, betaine-treated mice exhibited less severe experimental autoimmune encephalomyelitis symptoms, including lower clinical scores, reduced leukocyte infiltration, and less extensive demyelination in the CNS. Moreover, a significantly lower percentage of Th17 cells, one of the major pathogenic effector cells in MS progression, was observed in the peripheral immune system and in the CNS. Interestingly, in the in vitro Th17-differentiation assay, no significant change in Th17 cells was observed between the vehicle- and betaine-treated groups, whereas in the in vitro DC culture experiment, betaine treatment significantly decreased DC-derived IL-6 production. In the DC-T cell coculture experiment, a significantly decreased Th17 differentiation was observed upon betaine treatment. All of these data demonstrated that betaine inhibited Th17 differentiation indirectly by reducing IL-6 production by DCs. In brief, our findings demonstrated the pivotal roles of betaine in modulating MS pathogenesis and suggested that it may serve as a potential novel drug candidate for the treatment of MS. PMID- 29330323 TI - IL-10 Deficiency Reveals a Role for TLR2-Dependent Bystander Activation of T Cells in Lyme Arthritis. AB - T cells predominate the immune responses in the synovial fluid of patients with persistent Lyme arthritis; however, their role in Lyme disease remains poorly defined. Using a murine model of persistent Lyme arthritis, we observed that bystander activation of CD4+ and CD8+ T cells leads to arthritis-promoting IFN gamma, similar to the inflammatory environment seen in the synovial tissue of patients with posttreatment Lyme disease. TCR transgenic mice containing monoclonal specificity toward non-Borrelia epitopes confirmed that bystander T cell activation was responsible for disease development. The microbial pattern recognition receptor TLR2 was upregulated on T cells following infection, implicating it as marker of bystander T cell activation. In fact, T cell intrinsic expression of TLR2 contributed to IFN-gamma production and arthritis, providing a mechanism for microbial-induced bystander T cell activation during infection. The IL-10-deficient mouse reveals a novel TLR2-intrinsic role for T cells in Lyme arthritis, with potentially broad application to immune pathogenesis. PMID- 29330325 TI - Cutting Edge: Plasmodium falciparum Induces Trained Innate Immunity. AB - Malarial infection in naive individuals induces a robust innate immune response. In the recently described model of innate immune memory, an initial stimulus primes the innate immune system to either hyperrespond (termed training) or hyporespond (tolerance) to subsequent immune challenge. Previous work in both mice and humans demonstrated that infection with malaria can both serve as a priming stimulus and promote tolerance to subsequent infection. In this study, we demonstrate that initial stimulation with Plasmodium falciparum-infected RBCs or the malaria crystal hemozoin induced human adherent PBMCs to hyperrespond to subsequent ligation of TLR2. This hyperresponsiveness correlated with increased H3K4me3 at important immunometabolic promoters, and these epigenetic modifications were also seen in Kenyan children naturally infected with malaria. However, the use of epigenetic and metabolic inhibitors indicated that the induction of trained immunity by malaria and its ligands may occur via a previously unrecognized mechanism(s). PMID- 29330326 TI - Loss of Balance between Striatal Feedforward Inhibition and Corticostriatal Excitation Leads to Tremor. AB - Fast-spiking interneurons (FSIs) exert powerful inhibitory control over the striatum and are hypothesized to balance the massive excitatory cortical and thalamic input to this structure. We recorded neuronal activity in the dorsolateral striatum and globus pallidus (GP) concurrently with the detailed movement kinematics of freely behaving female rats before and after selective inhibition of FSI activity using IEM-1460 microinjections. The inhibition led to the appearance of episodic rest tremor in the body part that depended on the somatotopic location of the injection within the striatum. The tremor was accompanied by coherent oscillations in the local field potential (LFP). Individual neuron activity patterns became oscillatory and coherent in the tremor frequency. Striatal neurons, but not GP neurons, displayed additional temporal, nonoscillatory correlations. The subsequent reduction in the corticostriatal input following muscimol injection to the corresponding somatotopic location in the primary motor cortex led to disruption of the tremor and a reduction of the LFP oscillations and individual neuron's phase-locked activity. The breakdown of the normal balance of excitation and inhibition in the striatum has been shown previously to be related to different motor abnormalities. Our results further indicate that the balance between excitatory corticostriatal input and feedforward FSI inhibition is sufficient to break down the striatal decorrelation process and generate oscillations resulting in rest tremor typical of multiple basal ganglia disorders.SIGNIFICANCE STATEMENT Fast-spiking interneurons (FSIs) play a key role in normal striatal processing by exerting powerful inhibitory control over the network. FSI malfunctions have been associated with abnormal processing of information within the striatum that leads to multiple movement disorders. Here, we study the changes in neuronal activity and movement kinematics following selective inhibition of these neurons. The injections led to the appearance of episodic rest tremor, accompanied by coherent oscillations in neuronal activity, which was reversed following corticostriatal inhibition. These results suggest that the balance between corticostriatal excitation and feedforward FSI inhibition is crucial for maintaining the striatal decorrelation process, and that its breakdown leads to the formation of oscillations resulting in rest tremor typical of multiple basal ganglia disorders. PMID- 29330327 TI - Signal Complexity of Human Intracranial EEG Tracks Successful Associative-Memory Formation across Individuals. AB - Memory performance is highly variable among individuals. Most studies examining human memory, however, have largely focused on the neural correlates of successful memory formation within individuals, rather than the differences among them. As such, what gives rise to this variability is poorly understood. Here, we examined intracranial EEG (iEEG) recordings captured from 43 participants (23 male) implanted with subdural electrodes for seizure monitoring as they performed a paired-associates verbal memory task. We identified three separate but related signatures of neural activity that tracked differences in successful memory formation across individuals. High-performing individuals consistently exhibited less broadband power, flatter power spectral density slopes, and greater complexity in their iEEG signals. Furthermore, within individuals across three separate time scales ranging from seconds to days, successful recall was positively associated with these same metrics. Our data therefore suggest that memory ability across individuals can be indexed by increased neural signal complexity.SIGNIFICANCE STATEMENT We show that participants whose intracranial EEG exhibits less low-frequency power, flatter power spectrums, and greater sample entropy overall are better able to memorize associations, and that the same metrics track fluctuations in memory performance across time within individuals. These metrics together signify greater neural signal complexity, which may index the brain's ability to flexibly engage with information and generate separable memory representations. Critically, the current set of results provides a unique window into the neural markers of individual differences in memory performance, which have hitherto been underexplored. PMID- 29330328 TI - Assembling a Cellular User Manual for the Brain. AB - For many years, efforts to decipher the various cellular components that comprise the CNS were stymied by a lack of technical strategies for isolating and profiling the brain's resident cell types. The advent of transcriptional profiling, combined with powerful new purification schemes, changed this reality and transformed our understanding of the macroglial populations within the brain. Here, we chronicle the historical context and scientific setting for our efforts to transcriptionally profile neurons, astrocytes, and oligodendrocytes, and highlight some of the profound discoveries that were cultivated by these data.Following a lengthy battle with pancreatic cancer, Ben Barres passed away during the writing of this Progression piece. Among Ben's innumerable contributions to the greater scientific community, his addition of publicly available transcriptome databases of CNS cell types will forever remain a relic of his generous spirit and boundless scientific curiosity. Although he had impressively committed a majority of these enormous gene lists to memory, Ben could oftentimes be spotted at meetings buried in his cell phone on the Barres RNAseq database. Perhaps the only thing he enjoyed more than exploring these data himself, was knowing how useful these contributions had been (and will hopefully continue to be) to his scientific peers. PMID- 29330329 TI - Large genomic insertion at the Shh locus results in hammer toes through enhancer adoption. PMID- 29330330 TI - Greening up the mountain. PMID- 29330331 TI - Molecular pathways to nonbiting mosquitoes. PMID- 29330332 TI - Identification and Characterization of Sites Where Persistent Atrial Fibrillation Is Terminated by Localized Ablation. AB - BACKGROUND: The mechanisms by which persistent atrial fibrillation (AF) terminates via localized ablation are not well understood. To address the hypothesis that sites where localized ablation terminates persistent AF have characteristics identifiable with activation mapping during AF, we systematically examined activation patterns acquired only in cases of unequivocal termination by ablation. METHODS AND RESULTS: We recruited 57 patients with persistent AF undergoing ablation, in whom localized ablation terminated AF to sinus rhythm or organized tachycardia. For each site, we performed an offline analysis of unprocessed unipolar electrograms collected during AF from multipolar basket catheters using the maximum -dV/dt assignment to construct isochronal activation maps for multiple cycles. Additional computational modeling and phase analysis were used to study mechanisms of map variability. At all sites of AF termination, localized repetitive activation patterns were observed. Partial rotational circuits were observed in 26 of 57 (46%) cases, focal patterns in 19 of 57 (33%), and complete rotational activity in 12 of 57 (21%) cases. In computer simulations, incomplete segments of partial rotations coincided with areas of slow conduction characterized by complex, multicomponent electrograms, and variations in assigning activation times at such sites substantially altered mapped mechanisms. CONCLUSIONS: Local activation mapping at sites of termination of persistent AF showed repetitive patterns of rotational or focal activity. In computer simulations, complete rotational activation sequence was observed but was sensitive to assignment of activation timing particularly in segments of slow conduction. The observed phenomena of repetitive localized activation and the mechanism by which local ablation terminates putative AF drivers require further investigation. PMID- 29330333 TI - Standard Ablation Versus Magnetic Resonance Imaging-Guided Ablation in the Treatment of Ventricular Tachycardia. PMID- 29330334 TI - Detection of heterozygous mutation in hook microtubule-tethering protein 1 in three patients with decapitated and decaudated spermatozoa syndrome. AB - BACKGROUND: The mechanism of intramanchette transport is crucial to the transformation of sperm tail and the nuclear condensation during spermiogenesis. Although few dysfunctional proteins could result in abnormal junction between the head and tail of spermatozoon, little is known about the genetic cues in this process. OBJECTIVE: Based on patients with severe decapitated and decaudated spermatozoa (DDS) syndrome, the study aimed to validate whether new mutation exists on their Hook microtubule-tethering protein 1 (HOOK1) genes and follow their results of assisted reproduction treatment (ART). METHODS: 7 severe teratozoospermia patients with DDS (proportion >95%) and three relative members in one pedigree were collected to sequence the whole genomic DNA. The fertilisation rates (FRs) of these patients were followed. Morphological observation and interspecies intracytoplasmic sperm injection (ICSI) assays were applied. RESULTS: A novel missense mutation of A to G (p.Q286R) in patients with DDS (n=3/7) was found in the HOOK1 gene, which was inherited from the mother in one patient. This variant was absent in 160 fertile population-matched control individuals. Morphological observation showed that almost all the DDS broke into decaudated heads and headless tails at the implantation fossa or the basal plate. The clinical studies indicated that the mutation might cause reduced FRs on both ART (FR=18.07%) and interspecies ICSI (FR=16.98%). CONCLUSIONS: An unreported mutation in HOOK1 gene was identified, which might be responsible to some patients with DDS. Further studies need to uncover the molecular mechanism of spermiogenesis for genomic therapy. PMID- 29330335 TI - Fabry Disease: prevalence of affected males and heterozygotes with pathogenic GLA mutations identified by screening renal, cardiac and stroke clinics, 1995-2017. AB - BACKGROUND: Fabry Disease (FD), an X linked lysosomal storage disease due to pathogenic alpha-galactosidase A (GLA) mutations, results in two major subtypes, the early-onset Type 1 'Classic' and the Type 2 'Later-Onset' phenotypes. To identify previously unrecognised patients, investigators screened cardiac, renal and stroke clinics by enzyme assays. However, some screening studies did not perform confirmatory GLA mutation analyses, and many included recently recognised 'benign/likely-benign' variants, thereby inflating prevalence estimates. METHODS: Online databases were searched for all FD screening studies in high-risk clinics (1995-2017). Studies reporting GLA mutations were re-analysed for pathogenic mutations, sex and phenotype. Phenotype-specific and sex-specific prevalence rates were determined. RESULTS: Of 67 studies, 63 that screened 51363patients (33943M and 17420F) and provided GLA mutations were reanalysed for disease causing mutations. Of reported GLA mutations, benign variants occurred in 47.9% of males and 74.1% of females. The following were the revised prevalence estimates: among 36820 (23954M and 12866F) haemodialysis screenees, 0.21% males and 0.15% females; among 3074 (2031M and 1043F) renal transplant screenees, 0.25% males and no females; among 5491 (4054M and 1437F) cardiac screenees, 0.94% males and 0.90% females; and among 5978 (3904M and 2074F) stroke screenees, 0.13% males and 0.14% females. Among male and female screenees with pathogenic mutations, the type 1 Classic phenotype was predominant (~60%), except more male cardiac patients (75%) had type 2 Later-Onset phenotype. CONCLUSIONS: Compared with previous findings, reanalysis of 63 studies increased the screenee numbers (~3.4 fold), eliminated 20 benign/likely benign variants, and provided more accurate sex-specific and phenotype-specific prevalence estimates, ranging from ~0.13% of stroke to ~0.9% of cardiac male or female screenees. PMID- 29330336 TI - Risk factors for survival in patients with von Hippel-Lindau disease. AB - BACKGROUND: Historically, von Hippel-Lindau (VHL) disease is characterised by a poor survival. Although genotype-phenotype correlation has been described in many studies, the risk factors for VHL survival remain unclear. This study aims to evaluate the median survival of Chinese patients with VHL disease and explore whether VHL survival is influenced by genetic and clinical factors. METHODS: In this retrospective study, we recruited 340 patients from 127 VHL families. Kaplan Meier plot and Cox regression model were used to evaluate the median survival and assess how survival was influenced by birth year, birth order, sex, family history, mutation type, onset age and first presenting symptom. RESULTS: The estimated median life expectancy for Chinese patients with VHL disease was 62 years. Patients with early-onset age, positive family history and truncating mutation types had poorer overall and VHL-related survival. Patients with haemangioblastoma as their first presenting symptom were related to a higher risk of death from central nervous system haemangioblastoma than those with abdominal lesions (HR 8.84, 95% CI 2.04 to 38.37, P=0.004). CONCLUSIONS: This largest VHL survival analysis indicates that onset age, family history, mutation type and first presenting symptom have an effect on the survival of patients with VHL disease, which is helpful to genetic counselling and clinical decision-making. PMID- 29330337 TI - Role of germline aberrations affecting CTNNA1, MAP3K6 and MYD88 in gastric cancer susceptibility. AB - BACKGROUND: In approximately 10% of all gastric cancer (GC) cases, a heritable cause is suspected. A subset of these cases have a causative germline CDH1 mutation; however, in most cases the cause remains unknown. Our objective was to assess to what extent these remaining cases may be explained by germline mutations in the novel candidate GC predisposing genes CTNNA1, MAP3K6 or MYD88. METHODS: We sequenced a large cohort of unexplained young and/or familial patients with GC (n=286) without a CDH1germline mutation for germline variants affecting CTNNA1, MAP3K6 and MYD88 using a targeted next-generation sequencing approach based on single-molecule molecular inversion probes. RESULTS: Predicted deleterious germline variants were not encountered in MYD88, but recurrently observed in CTNNA1 (n=2) and MAP3K6 (n=3) in our cohort of patients with GC. In contrast to deleterious variants in CTNNA1, deleterious variants in MAP3K6 also occur frequently in the general population. CONCLUSIONS: Based on our results MAP3K6 should no longer be considered a GC predisposition gene, whereas deleterious CTNNA1 variants are confirmed as an infrequent cause of GC susceptibility. Biallelic MYD88 germline mutations are at most a very rare cause of GC susceptibility as no additional cases were identified. PMID- 29330339 TI - HIV-Positive Kidney Donor Selection for HIV-Positive Transplant Recipients. AB - The risks associated with transplanting HIV-positive kidneys into HIV-positive recipients have not been well studied. Since 2008, 43 kidneys from 25 HIV positive deceased donors have been transplanted into patients who are HIV positive in Cape Town, South Africa. Among the donors, 19 (76%) died secondary to trauma. The average age for donors was 34 (interquartile range, 19-52) years old. In some donors, only one kidney was used because of a limited number of suitable recipients on the waiting list. Only two donors had been previously exposed to antiretroviral triple therapy. In 23 of the deceased organ donors, the HIV status was not known before the time of death. Initial concerns about transplanting HIV positive allografts into HIV-positive recipients in this clinic revolved around the possibility of HIV superinfection. However, all recipients remained virally suppressed several years after the transplant. Only one recipient experienced an increased viral load after the transplant, which was related to a period of noncompliance on her medication. After counseling and improved compliance, the viral load decreased and became suppressed again. Herein, we discuss the findings of this study and review the literature available on this crucial topic. PMID- 29330338 TI - Diagnosis, management, histology and genetics of sporadic primary hyperparathyroidism: old knowledge with new tricks. AB - Primary hyperparathyroidism (pHPT) is a common endocrinopathy resulting from inappropriately high PTH secretion. It usually results from the presence of a single gland adenoma, multiple gland hyperplasia or rarely parathyroid carcinoma. All these conditions require different management, and it is important to be able to differentiate the underlined pathology, in order for the clinicians to provide the best therapeutic approach. Elucidation of the genetic background of each of these clinical entities would be of great interest. However, the molecular factors that control parathyroid tumorigenesis are poorly understood. There are data implicating the existence of specific genetic pathways involved in the emergence of parathyroid tumorigenesis. The main focus of the present study is to present the current optimal diagnostic and management protocols for pHPT as well as to review the literature regarding all molecular and genetic pathways that are to be involved in the pathophysiology of sporadic pHPT. PMID- 29330340 TI - The Adiponectin Receptor Agonist AdipoRon Ameliorates Diabetic Nephropathy in a Model of Type 2 Diabetes. AB - Adiponectin exerts renoprotective effects against diabetic nephropathy (DN) by activating the AMP-activated protein kinase (AMPK)/peroxisome proliferative activated receptor-alpha (PPARalpha) pathway through adiponectin receptors (AdipoRs). AdipoRon is an orally active synthetic adiponectin receptor agonist. We investigated the expression of AdipoRs and the associated intracellular pathways in 27 patients with type 2 diabetes and examined the effects of AdipoRon on DN development in male C57BLKS/J db/db mice, glomerular endothelial cells (GECs), and podocytes. The extent of glomerulosclerosis and tubulointerstitial fibrosis correlated with renal function deterioration in human kidneys. Expression of AdipoR1, AdipoR2, and Ca2+/calmodulin-dependent protein kinase kinase-beta (CaMKKbeta) and numbers of phosphorylated liver kinase B1 (LKB1)- and AMPK-positive cells significantly decreased in the glomeruli of early stage human DN. AdipoRon treatment restored diabetes-induced renal alterations in db/db mice. AdipoRon exerted renoprotective effects by directly activating intrarenal AdipoR1 and AdipoR2, which increased CaMKKbeta, phosphorylated Ser431LKB1, phosphorylated Thr172AMPK, and PPARalpha expression independently of the systemic effects of adiponectin. AdipoRon-induced improvement in diabetes-induced oxidative stress and inhibition of apoptosis in the kidneys ameliorated relevant intracellular pathways associated with lipid accumulation and endothelial dysfunction. In high glucose-treated human GECs and murine podocytes, AdipoRon increased intracellular Ca2+ levels that activated a CaMKKbeta/phosphorylated Ser431LKB1/phosphorylated Thr172AMPK/PPARalpha pathway and downstream signaling, thus decreasing high glucose-induced oxidative stress and apoptosis and improving endothelial dysfunction. AdipoRon further produced cardioprotective effects through the same pathway demonstrated in the kidney. Our results show that AdipoRon ameliorates GEC and podocyte injury by activating the intracellular Ca2+/LKB1-AMPK/PPARalpha pathway, suggesting its efficacy for treating type 2 diabetes-associated DN. PMID- 29330341 TI - Biomechanics of coupled motion in the cervical spine during simulated whiplash in patients with pre-existing cervical or lumbar spinal fusion: A Finite Element Study. AB - OBJECTIVES: Loss of motion following spine segment fusion results in increased strain in the adjacent motion segments. However, to date, studies on the biomechanics of the cervical spine have not assessed the role of coupled motions in the lumbar spine. Accordingly, we investigated the biomechanics of the cervical spine following cervical fusion and lumbar fusion during simulated whiplash using a whole-human finite element (FE) model to simulate coupled motions of the spine. METHODS: A previously validated FE model of the human body in the driver-occupant position was used to investigate cervical hyperextension injury. The cervical spine was subjected to simulated whiplash exposure in accordance with Euro NCAP (the European New Car Assessment Programme) testing using the whole human FE model. The coupled motions between the cervical spine and lumbar spine were assessed by evaluating the biomechanical effects of simulated cervical fusion and lumbar fusion. RESULTS: Peak anterior longitudinal ligament (ALL) strain ranged from 0.106 to 0.382 in a normal spine, and from 0.116 to 0.399 in a fused cervical spine. Strain increased from cranial to caudal levels. The mean strain increase in the motion segment immediately adjacent to the site of fusion from C2-C3 through C5-C6 was 26.1% and 50.8% following single- and two-level cervical fusion, respectively (p = 0.03, unpaired two-way t-test). Peak cervical strains following various lumbar-fusion procedures were 1.0% less than those seen in a healthy spine (p = 0.61, two-way ANOVA). CONCLUSION: Cervical arthrodesis increases peak ALL strain in the adjacent motion segments. C3-4 experiences greater changes in strain than C6-7. Lumbar fusion did not have a significant effect on cervical spine strain.Cite this article: H. Huang, R. W. Nightingale, A. B. C. Dang. Biomechanics of coupled motion in the cervical spine during simulated whiplash in patients with pre-existing cervical or lumbar spinal fusion: A Finite Element Study. Bone Joint Res 2018;7:28-35. DOI: 10.1302/2046 3758.71.BJR-2017-0100.R1. PMID- 29330342 TI - Are the patient-rated wrist evaluation (PRWE) and the disabilities of the arm, shoulder and hand (DASH) questionnaire used in distal radial fractures truly valid and reliable? AB - OBJECTIVES: The patient-rated wrist evaluation (PRWE) and the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire are patient-reported outcome measures (PROMs) used for clinical and research purposes. Methodological high-quality clinimetric studies that determine the measurement properties of these PROMs when used in patients with a distal radial fracture are lacking. This study aimed to validate the PRWE and DASH in Dutch patients with a displaced distal radial fracture (DRF). METHODS: The intraclass correlation coefficient (ICC) was used for test-retest reliability, between PROMs completed twice with a two-week interval at six to eight months after DRF. Internal consistency was determined using Cronbach's alpha for the dimensions found in the factor analysis. The measurement error was expressed by the smallest detectable change (SDC). A semi structured interview was conducted between eight and 12 weeks after DRF to assess the content validity. RESULTS: A total of 119 patients (mean age 58 years (sd 15)), 74% female, completed PROMs at a mean time of six months (sd 1) post fracture. One overall meaningful dimension was found for the PRWE and the DASH. Internal consistency was excellent for both PROMs (Cronbach's alpha 0.96 (PRWE) and 0.97 (DASH)). Test-retest reliability was good for the PRWE (ICC 0.87) and excellent for the DASH (ICC 0.91). The SDC was 20 for the PRWE and 14 for the DASH. No floor or ceiling effects were found. The content validity was good for both questionnaires. CONCLUSION: The PRWE and DASH are valid and reliable PROMs in assessing function and disability in Dutch patients with a displaced DRF. However, due to the high SDC, the PRWE and DASH are less useful for individual patients with a distal radial fracture in clinical practice.Cite this article: Y. V. Kleinlugtenbelt, R. G. Krol, M. Bhandari, J. C. Goslings, R. W. Poolman, V. A. B. Scholtes. Are the patient-rated wrist evaluation (PRWE) and the disabilities of the arm, shoulder and hand (DASH) questionnaire used in distal radial fractures truly valid and reliable? Bone Joint Res 2018;7:36-45. DOI: 10.1302/2046-3758.71.BJR-2017-0081.R1. PMID- 29330343 TI - Treatment of osteomyelitis defects by a vancomycin-loaded gelatin/beta-tricalcium phosphate composite scaffold. AB - OBJECTIVE: In the present study, we aimed to assess whether gelatin/beta tricalcium phosphate (beta-TCP) composite porous scaffolds could be used as a local controlled release system for vancomycin. We also investigated the efficiency of the scaffolds in eliminating infections and repairing osteomyelitis defects in rabbits. METHODS: The gelatin scaffolds containing differing amounts of of beta-TCP (0%, 10%, 30% and 50%) were prepared for controlled release of vancomycin and were labelled G-TCP0, G-TCP1, G-TCP3 and G-TCP5, respectively. The Kirby-Bauer method was used to examine the release profile. Chronic osteomyelitis models of rabbits were established. After thorough debridement, the osteomyelitis defects were implanted with the scaffolds. Radiographs and histological examinations were carried out to investigate the efficiency of eliminating infections and repairing bone defects. RESULTS: The prepared gelatin/beta-TCP scaffolds exhibited a homogeneously interconnected 3D porous structure. The G TCP0 scaffold exhibited the longest duration of vancomycin release with a release duration of eight weeks. With the increase of beta-TCP contents, the release duration of the beta-TCP-containing composite scaffolds was decreased. The complete release of vancomycin from the G-TCP5 scaffold was achieved within three weeks. In the treatment of osteomyelitis defects in rabbits, the G-TCP3 scaffold showed the most efficacious performance in eliminating infections and repairing bone defects. CONCLUSIONS: The composite scaffolds could achieve local therapeutic drug levels over an extended duration. The G-TCP3 scaffold possessed the optimal porosity, interconnection and controlled release performance. Therefore, this scaffold could potentially be used in the treatment of chronic osteomyelitis defects.Cite this article: J. Zhou, X. G. Zhou, J. W. Wang, H. Zhou, J. Dong. Treatment of osteomyelitis defects by a vancomycin-loaded gelatin/beta-tricalcium phosphate composite scaffold. Bone Joint Res 2018;7:46 57. DOI: 10.1302/2046-3758.71.BJR-2017-0129.R2. PMID- 29330344 TI - Parathyroid hormone-related protein exhibits antioxidant features in osteoblastic cells through its N-terminal and osteostatin domains. AB - OBJECTIVES: Oxidative stress plays a major role in the onset and progression of involutional osteoporosis. However, classical antioxidants fail to restore osteoblast function. Interestingly, the bone anabolism of parathyroid hormone (PTH) has been shown to be associated with its ability to counteract oxidative stress in osteoblasts. The PTH counterpart in bone, which is the PTH-related protein (PTHrP), displays osteogenic actions through both its N-terminal PTH-like region and the C-terminal domain. METHODS: We examined and compared the antioxidant capacity of PTHrP (1-37) with the C-terminal PTHrP domain comprising the 107-111 epitope (osteostatin) in both murine osteoblastic MC3T3-E1 cells and primary human osteoblastic cells. RESULTS: We showed that both N- and C-terminal PTHrP peptides at 100 nM decreased reactive oxygen species production and forkhead box protein O activation following hydrogen peroxide (H2O2)-induced oxidation, which was related to decreased lipid oxidative damage and caspase-3 activation in these cells. This was associated with their ability to restore the deleterious effects of H2O2 on cell growth and alkaline phosphatase activity, as well as on the expression of various osteoblast differentiation genes. The addition of Rp-cyclic 3',5'-hydrogen phosphorothioate adenosine triethylammonium salt (a cyclic 3',5'-adenosine monophosphate antagonist) and calphostin C (a protein kinase C inhibitor), or a PTH type 1 receptor antagonist, abrogated the effects of N-terminal PTHrP, whereas protein phosphatase 1 (an Src kinase activity inhibitor), SU1498 (a vascular endothelial growth factor receptor 2 inhibitor), or an anti osteostatin antiserum, inhibited the effects of C-terminal PTHrP. CONCLUSION: These findings indicate that the antioxidant properties of PTHrP act through its N- and C-terminal domains and provide novel insights into the osteogenic action of PTHrP.Cite this article: S. Portal-Nunez, J. A. Ardura, D. Lozano, I. Martinez de Toda, M. De la Fuente, G. Herrero-Beaumont, R. Largo, P. Esbrit. Parathyroid hormone-related protein exhibits antioxidant features in osteoblastic cells through its N-terminal and osteostatin domains. Bone Joint Res 2018;7:58-68. DOI: 10.1302/2046-3758.71.BJR-2016-0242.R2. PMID- 29330345 TI - A computational simulation study to determine the biomechanical influence of posterior condylar offset and tibial slope in cruciate retaining total knee arthroplasty. AB - OBJECTIVES: Posterior condylar offset (PCO) and posterior tibial slope (PTS) are critical factors in total knee arthroplasty (TKA). A computational simulation was performed to evaluate the biomechanical effect of PCO and PTS on cruciate retaining TKA. METHODS: We generated a subject-specific computational model followed by the development of +/- 1 mm, +/- 2 mm and +/- 3 mm PCO models in the posterior direction, and -3 degrees , 0 degrees , 3 degrees and 6 degrees PTS models with each of the PCO models. Using a validated finite element (FE) model, we investigated the influence of the changes in PCO and PTS on the contact stress in the patellar button and the forces on the posterior cruciate ligament (PCL), patellar tendon and quadriceps muscles under the deep knee-bend loading conditions. RESULTS: Contact stress on the patellar button increased and decreased as PCO translated to the anterior and posterior directions, respectively. In addition, contact stress on the patellar button decreased as PTS increased. These trends were consistent in the FE models with altered PCO. Higher quadriceps muscle and patellar tendon force are required as PCO translated in the anterior direction with an equivalent flexion angle. However, as PTS increased, quadriceps muscle and patellar tendon force reduced in each PCO condition. The forces exerted on the PCL increased as PCO translated to the posterior direction and decreased as PTS increased. CONCLUSION: The change in PCO alternatively provided positive and negative biomechanical effects, but it led to a reduction in a negative biomechanical effect as PTS increased.Cite this article: K-T. Kang, Y-G. Koh, J. Son, O-R. Kwon, J-S. Lee, S. K. Kwon. A computational simulation study to determine the biomechanical influence of posterior condylar offset and tibial slope in cruciate retaining total knee arthroplasty. Bone Joint Res 2018;7:69-78. DOI: 10.1302/2046-3758.71.BJR-2017-0143.R1. PMID- 29330346 TI - Underestimation of Staphylococcus aureus (MRSA and MSSA) carriage associated with standard culturing techniques: One third of carriers missed. AB - OBJECTIVES: Nasal carriers of Staphylococcus (S.) aureus (MRSA and MSSA) have an increased risk for healthcare-associated infections. There are currently limited national screening policies for the detection of S. aureus despite the World Health Organization's recommendations. This study aimed to evaluate the diagnostic performance of molecular and culture techniques in S. aureus screening, determine the cause of any discrepancy between the diagnostic techniques, and model the potential effect of different diagnostic techniques on S. aureus detection in orthopaedic patients. METHODS: Paired nasal swabs for polymerase chain reaction (PCR) assay and culture of S. aureus were collected from a study population of 273 orthopaedic outpatients due to undergo joint arthroplasty surgery. RESULTS: The prevalence of MSSA nasal colonization was found to be between 22.4% to 35.6%. The current standard direct culturing methods for detecting S. aureus significantly underestimated the prevalence (p = 0.005), failing to identify its presence in approximately one-third of patients undergoing joint arthroplasty surgery. CONCLUSION: Modelling these results to national surveillance data, it was estimated that approximately 5000 to 8000 S. aureus surgical site infections could be prevented, and approximately $140 million to $950 million (approximately L110 million to L760 million) saved in treatment costs annually in the United States and United Kingdom combined, by using alternative diagnostic methods to direct culture in preoperative S. aureus screening and eradication programmes.Cite this article: S. T. J. Tsang, M. P. McHugh, D. Guerendiain, P. J. Gwynne, J. Boyd, A. H. R. W. Simpson, T. S. Walsh, I. F. Laurenson, K. E. Templeton. Underestimation of Staphylococcus aureus (MRSA and MSSA) carriage associated with standard culturing techniques: One third of carriers missed. Bone Joint Res 2018;7:79-84. DOI: 10.1302/2046-3758.71.BJR-2017 0175.R1. PMID- 29330347 TI - Performance of candidates disclosing dyslexia with other candidates in a UK medical licensing examination: cross-sectional study. AB - PURPOSE OF THE STUDY: The aim of this study was to compare performance of candidates who declared an expert-confirmed diagnosis of dyslexia with all other candidates in the Applied Knowledge Test (AKT) of the Membership of the Royal College of General Practitioners licensing examination. STUDY DESIGN: We used routinely collected data from candidates who took the AKT on one or more occasions between 2010 and 2015. Multivariate logistic regression was used to analyse performance of candidates who declared dyslexia with all other candidates, adjusting for candidate characteristics known to be associated with examination success including age, sex, ethnicity, country of primary medical qualification, stage of training, number of attempts and time spent completing the test. RESULTS: The analysis included data from 14 examinations involving 14 801 candidates of which 2.6% (379/14 801) declared dyslexia. The pass rate for candidates who declared dyslexia was 83.6% compared with 95.0% for other candidates. After adjusting for covariates linked to examination success including age, sex, ethnicity, country of primary medical qualification, stage of training, number of attempts and time spent completing the test dyslexia was not significantly associated with pass rates in the AKT. Candidates declaring dyslexia after initially failing the AKT were more likely to have a primary medical qualification outside the UK. CONCLUSIONS: Performance was similar in AKT candidates disclosing dyslexia with other candidates once covariates associated with examination success were adjusted for. Candidates declaring dyslexia after initially failing the AKT were more likely to have a primary medical qualification outside the UK. PMID- 29330348 TI - Weak Epistasis May Drive Adaptation in Recombining Bacteria. AB - The impact of epistasis on the evolution of multi-locus traits depends on recombination. While sexually reproducing eukaryotes recombine so frequently that epistasis between polymorphisms is not considered to play a large role in short term adaptation, many bacteria also recombine, some to the degree that their populations are described as "panmictic" or "freely recombining." However, whether this recombination is sufficient to limit the ability of selection to act on epistatic contributions to fitness is unknown. We quantify homologous recombination in five bacterial pathogens and use these parameter estimates in a multilocus model of bacterial evolution with additive and epistatic effects. We find that even for highly recombining species (e.g., Streptococcus pneumoniae or Helicobacter pylori), selection on weak interactions between distant mutations is nearly as efficient as for an asexual species, likely because homologous recombination typically transfers only short segments. However, for strong epistasis, bacterial recombination accelerates selection, with the dynamics dependent on the amount of recombination and the number of loci. Epistasis may thus play an important role in both the short- and long-term adaptive evolution of bacteria, and, unlike in eukaryotes, is not limited to strong effect sizes, closely linked loci, or other conditions that limit the impact of recombination. PMID- 29330349 TI - Pharmacologic inhibition of phospholipase C in the brain attenuates early memory formation in the honeybee (Apis mellifera L.). AB - Although the molecular mechanisms involved in learning and memory in insects have been studied intensively, the intracellular signaling mechanisms involved in early memory formation are not fully understood. We previously demonstrated that phospholipase C epsilon (PLCe), whose product is involved in calcium signaling, is almost selectively expressed in the mushroom bodies, a brain structure important for learning and memory in the honeybee. Here, we pharmacologically examined the role of phospholipase C (PLC) in learning and memory in the honeybee. First, we identified four genes for PLC subtypes in the honeybee genome database. Quantitative reverse transcription-polymerase chain reaction revealed that, among these four genes, three, including PLCe, were expressed higher in the brain than in sensory organs in worker honeybees, suggesting their main roles in the brain. Edelfosine and neomycin, pan-PLC inhibitors, significantly decreased PLC activities in homogenates of the brain tissues. These drugs injected into the head of foragers significantly attenuated memory acquisition in comparison with the control groups, whereas memory retention was not affected. These findings suggest that PLC in the brain is involved in early memory formation in the honeybee. To our knowledge, this is the first report of a role for PLC in learning and memory in an insect. PMID- 29330350 TI - Selection against BALB/c strain cells in mouse chimaeras. AB - It has been shown previously that BALB/c strain embryos tend to contribute poorly to mouse aggregation chimaeras. In the present study we showed that BALB/c cells were not preferentially allocated to any extraembryonic lineages of mouse aggregation chimaeras, but their contribution decreased during the early postimplantation period and they were significantly depleted by E8.5. The development of BALB/c strain preimplantation embryos lagged behind embryos from some other strains and the contribution that BALB/c and other embryos made to chimaeras correlated with their developmental stage at E2.5. This relationship suggests that the poor contribution of BALB/c embryos to aggregation chimaeras is at least partly a consequence of generalised selection related to slow or delayed preimplantation development. The suitability of BALB/c embryos for maximising the ES cell contribution to mouse ES cell chimaeras is also discussed. PMID- 29330351 TI - The VEGFA156b isoform is dysregulated in senescent endothelial cells and may be associated with prevalent and incident coronary heart disease. AB - Coronary heart disease (CHD) is a leading cause of morbidity in people over 65 years of age; >40% of all deaths are due to this condition. The association between increasing age and CHD is well documented; the accumulation of senescent cells in cardiac and vascular tissues may represent one factor underpinning this observation. We aimed to identify senescence-related expression changes in primary human senescent cardiomyocytes and endothelial cells and to relate transcript expression in peripheral blood leucocytes to prevalent and incident CHD in the InCHIANTI study of aging. We quantified splicing factor expression and splicing patterns of candidate transcripts in proliferative and senescent later passage endothelial cells and cardiomyocytes using qRTPCR. Senescence-associated isoforms also expressed in peripheral blood leucocytes were then examined for associations with CHD status in 134 pairs of age, sex and BMI-matched CHD cases and controls. Splicing factor expression was dysregulated in senescent cardiomyocytes, as previously reported for endothelial cells, as was the expression of alternatively expressed cardiac and vascular candidate genes in both cell types. We found nominal associations between the expression of VEGFA156b and FNI-EIIIIA isoforms in peripheral blood mRNA and CHD status. Dysregulated splicing factor expression is a key feature of senescent cardiomyocytes and endothelial cells. Altered splicing of key cardiac or endothelial genes may contribute to the risk of CHD in the human population. PMID- 29330352 TI - Dbf4 recruitment by forkhead transcription factors defines an upstream rate limiting step in determining origin firing timing. AB - Initiation of eukaryotic chromosome replication follows a spatiotemporal program. The current model suggests that replication origins compete for a limited pool of initiation factors. However, it remains to be answered how these limiting factors are preferentially recruited to early origins. Here, we report that Dbf4 is enriched at early origins through its interaction with forkhead transcription factors Fkh1 and Fkh2. This interaction is mediated by the Dbf4 C terminus and was successfully reconstituted in vitro. An interaction-defective mutant, dbf4DeltaC, phenocopies fkh alleles in terms of origin firing. Remarkably, genome wide replication profiles reveal that the direct fusion of the DNA-binding domain (DBD) of Fkh1 to Dbf4 restores the Fkh-dependent origin firing but interferes specifically with the pericentromeric origin activation. Furthermore, Dbf4 interacts directly with Sld3 and promotes the recruitment of downstream limiting factors. These data suggest that Fkh1 targets Dbf4 to a subset of noncentromeric origins to promote early replication in a manner that is reminiscent of the recruitment of Dbf4 to pericentromeric origins by Ctf19. PMID- 29330353 TI - Afadin and RhoA control pancreatic endocrine mass via lumen morphogenesis. AB - Proper lumen morphogenesis during pancreas development is critical to endocrine and exocrine cell fate. Recent studies showed that a central network of lumens (termed core), but not the surrounding terminal branches (termed periphery), produces most islet endocrine cells. To date, it remains unclear how pancreatic lumens form and remodel and which aspects of lumen morphogenesis influence cell fate. Importantly, models testing the function of the central lumen network as an endocrine niche are lacking. Here, we identify mechanisms underlying lumen formation and remodeling and show that central lumen network morphogenesis impacts pancreatic endocrine mass. We show that loss of the scaffolding protein Afadin disrupts de novo lumenogenesis and lumen continuity in the tip epithelium. Codepletion of the actomyosin regulator RhoA and Afadin results in defects in the central lumens and arrests lumen remodeling. This arrest leads to prolonged perdurance of the central lumen network over developmental time and expansion of the endocrine progenitor population and, eventually, endocrine mass. Our study uncovers essential roles of Afadin and RhoA in pancreatic central lumen morphogenesis, which subsequently determines endocrine cell mass. PMID- 29330354 TI - The RES complex is required for efficient transformation of the precatalytic B spliceosome into an activated Bact complex. AB - The precise function of the trimeric retention and splicing (RES) complex in pre mRNA splicing remains unclear. Here we dissected the role of RES during the assembly and activation of yeast spliceosomes. The efficiency of pre-mRNA splicing was significantly lower in the absence of the RES protein Snu17, and the recruitment of its binding partners, Pml1 (pre-mRNA leakage protein 1) and Bud13 (bud site selection protein 13), to the spliceosome was either abolished or substantially reduced. RES was not required for the assembly of spliceosomal B complexes, but its absence hindered efficient Bact complex formation. DeltaRES spliceosomes were no longer strictly dependent on Prp2 activity for their catalytic activation, suggesting that they are structurally compromised. Addition of Prp2, Spp2, and UTP to affinity-purified DeltaRES B or a mixture of B/Bact complexes formed on wild-type pre-mRNA led to their disassembly. However, no substantial disassembly was observed with DeltaRES spliceosomes formed on a truncated pre-mRNA that allows Prp2 binding but blocks its activity. Thus, in the absence of RES, Prp2 appears to bind prematurely, leading to the disassembly of the DeltaRES B complexes to which it binds. Our data suggest that Prp2 can dismantle B complexes with an aberrant protein composition, suggesting that it may proofread the spliceosome's RNP structure prior to activation. PMID- 29330356 TI - Metabolic and molecular changes associated with the increased skeletal muscle insulin action 24-48 h after exercise in young and old humans. AB - The molecular and metabolic mechanisms underlying the increase in insulin sensitivity (i.e. increased insulin-stimulated skeletal muscle glucose uptake, phosphorylation and storage as glycogen) observed from 12 to 48 h following a single bout of exercise in humans remain unresolved. Moreover, whether these mechanisms differ with age is unclear. It is well established that a single bout of exercise increases the translocation of the glucose transporter, GLUT4, to the plasma membrane. Previous research using unilateral limb muscle contraction models in combination with hyperinsulinaemia has demonstrated that the increase in insulin sensitivity and glycogen synthesis 24 h after exercise is also associated with an increase in hexokinase II (HKII) mRNA and protein content, suggesting an increase in the capacity of the muscle to phosphorylate glucose and divert it towards glycogen synthesis. Interestingly, this response is altered in older individuals for up to 48 h post exercise and is associated with molecular changes in skeletal muscle tissue that are indicative of reduced lipid oxidation, increased lipogenesis, increased inflammation and a relative inflexibility of changes in intramyocellular lipid (IMCL) content. Reduced insulin sensitivity (insulin resistance) is generally related to IMCL content, particularly in the subsarcolemmal (SSL) region, and both are associated with increasing age. Recent research has demonstrated that ageing per se appears to cause an exacerbated lipolytic response to exercise that may result in SSL IMCL accumulation. Further research is required to determine if increased IMCL content affects HKII expression in the days after exercise in older individuals, and the effect of this on skeletal muscle insulin action. PMID- 29330355 TI - Fatty acids and related lipid mediators in the regulation of cutaneous inflammation. AB - Human skin has a distinct profile of fatty acids and related bioactive lipid mediators that regulate many aspects of epidermal and dermal homeostasis, including immune and inflammatory reactions. Sebum lipids act as effective antimicrobial agents, shape immune cell communications and contribute to the epidermal lipidome. The essential fatty acid linoleic acid is crucial for the structure of the epidermal barrier, while polyunsaturated fatty acids act as precursors to eicosanoids, octadecanoids and docosanoids through cyclooxygenase, lipoxygenase and cytochrome P450 monooxygenase-mediated reactions, and endocannabinoids and N-acyl ethanolamines. Cross-communication between these families of bioactive lipids suggests that their cutaneous activities should be considered as part of a wider metabolic network that can be targeted to maintain skin health, control inflammation and improve skin pathologies. PMID- 29330357 TI - Knockdown of Phospholipase Cepsilon (PLCepsilon) Inhibits Cell Proliferation via Phosphatase and Tensin Homolog Deleted on Chromosome 10 (PTEN)/AKT Signaling Pathway in Human Prostate Cancer. AB - BACKGROUND Phospholipase Cepsilon (PLCepsilon), a member of the plc family, has been extensively studied to reveal its role in the regulation of different cell functions, but understanding of the underlying mechanisms remains limited. In the present study, we explored the effects of PLCepsilon on PTEN (phosphatase and tensin homolog deleted on chromosome 10) in cell proliferation in prostate cancer cells. MATERIAL AND METHODS We assessed PLCepsilon and PTEN expression in human benign prostate tissues compared to prostate cancer tissues by immunohistochemistry. Lentivirus-shPLCepsilon (LV-shPLCepsilon) was designed to silence PLCepsilon expression in DU145 and PC3 cell lines, and the effectiveness was tested by qRT-PCR and Western blotting. MTT assay and colony formation assay were conducted to observe cell proliferation. Western blotting and immunofluorescence assays were used to detect changed PTEN expression in DU145. RESULTS We observed that PLCepsilon expression was reduced in human benign prostate tissues compared to prostate cancer tissues, while PTEN expression showed the opposite trend. Silencing of the PLCepsilon gene significantly inhibited cell proliferation in DU145 and PC3 cell lines. DU145 is a PTEN expressing cell, while PC3 is PTEN-deficient. After infection by LV-shPLCepsilon, we noticed that PTEN expression was up-regulated in DU145 cells but not in PC3 cells. Furthermore, we found that PLCepsilon gene knockdown decreased P-AKT protein levels, but AKT protein levels were not affected. Immunofluorescence assays showed that PTEN expression had an intracellular distribution change in the DU145 cell line, and Western blot analysis showed that PTEN was obviously up regulated in cell nucleus and cytoplasm. CONCLUSIONS PLCepsilon is an oncogene, and knockdown of expression of PLCe inhibits PCa cells proliferation via the PTEN/AKT signaling pathway. PMID- 29330358 TI - Pathogenesis of bone disease in multiple myeloma: from bench to bedside. AB - Osteolytic bone disease is the hallmark of multiple myeloma, which deteriorates the quality of life of myeloma patients, and it affects dramatically their morbidity and mortality. The basis of the pathogenesis of myeloma-related bone disease is the uncoupling of the bone-remodeling process. The interaction between myeloma cells and the bone microenvironment ultimately leads to the activation of osteoclasts and suppression of osteoblasts, resulting in bone loss. Several intracellular and intercellular signaling cascades, including RANK/RANKL/OPG, Notch, Wnt, and numerous chemokines and interleukins are implicated in this complex process. During the last years, osteocytes have emerged as key regulators of bone loss in myeloma through direct interactions with the myeloma cells. The myeloma-induced crosstalk among the molecular pathways establishes a positive feedback that sustains myeloma cell survival and continuous bone destruction, even when a plateau phase of the disease has been achieved. Targeted therapies, based on the better knowledge of the biology, constitute a promising approach in the management of myeloma-related bone disease and several novel agents are currently under investigation. Herein, we provide an insight into the underlying pathogenesis of bone disease and discuss possible directions for future studies. PMID- 29330359 TI - Strong grain neighbour effects in polycrystals. AB - Anisotropy in single-crystal properties of polycrystals controls both the overall response of the aggregates and patterning of local stress/strain distributions, the extremes of which govern failure processes. Improving the understanding of grain-grain interactions has important consequences for in-service performance limits. Three-dimensional synchrotron X-ray diffraction was used to study the evolution of grain-resolved stresses over many contiguous grains in Zr and Ti polycrystals deformed in situ. In a significant fraction of grains, the stress along the loading axis was found to decrease during tensile plastic flow just beyond the macroscopic yield point; this is in the absence of deformation twinning and is a surprising behaviour. It is shown that this phenomenon is controlled by the crystallographic orientation of the grain and its immediate neighbours, particularly those adjacent along the loading axis. PMID- 29330360 TI - Fibre-optic metadevice for all-optical signal modulation based on coherent absorption. AB - Recently, coherent control of the optical response of thin films in standing waves has attracted considerable attention, ranging from applications in excitation-selective spectroscopy and nonlinear optics to all-optical image processing. Here, we show that integration of metamaterial and optical fibre technologies allows the use of coherently controlled absorption in a fully fiberized and packaged switching metadevice. With this metadevice, which controls light with light in a nanoscale plasmonic metamaterial film on an optical fibre tip, we provide proof-of-principle demonstrations of logical functions XOR, NOT and AND that are performed within a coherent fibre network at wavelengths between 1530 and 1565 nm. The metadevice has been tested at up to 40 gigabits per second and sub-milliwatt power levels. Since coherent absorption can operate at the single-photon level and with 100 THz bandwidth, we argue that the demonstrated all-optical switch concept has potential applications in coherent and quantum information networks. PMID- 29330361 TI - Discovery of microRNA-target modules of African rice (Oryza glaberrima) under salinity stress. AB - Oryza glaberrima is the second edible rice in the genus Oryza. It is grown in the African countries. miRNAs are regulatory molecules that are involved in every domains of gene expression including salinity stress response. Although several miRNAs have been reported from various species of Oryza, yet none of them are from this species. Salt treated (200 mM NaCl for 48 h) and control smallRNA libraries of RAM-100, a salt tolerant genotype, each with 2 replications generated 150 conserve and 348 novel miRNAs. We also used smallRNAseq data of NCBI of O. glaberrima to discover additional 246 known miRNAs. Totally, 29 known and 32 novel miRNAs were differentially regulated under salinity stress. Gene ontology and KEGG analysis indicated several targets were involved in vital biological pathways of salinity stress tolerance. Expression of selected miRNAs as indicated by Illumina data were found to be coherent with real time-PCR analysis. However, target gene expression was inversely correlated with their corresponding miRNAs. Finally based upon present results as well as existing knowledge of literature, we proposed the miRNA-target modules that were induced by salinity stress. Therefore, the present findings provide valuable information about miRNA-target networks in salinity adaption of O. glaberrima. PMID- 29330362 TI - Dynamic modelling of the mTOR signalling network reveals complex emergent behaviours conferred by DEPTOR. AB - The mechanistic Target of Rapamycin (mTOR) signalling network is an evolutionarily conserved network that controls key cellular processes, including cell growth and metabolism. Consisting of the major kinase complexes mTOR Complex 1 and 2 (mTORC1/2), the mTOR network harbours complex interactions and feedback loops. The DEP domain-containing mTOR-interacting protein (DEPTOR) was recently identified as an endogenous inhibitor of both mTORC1 and 2 through direct interactions, and is in turn degraded by mTORC1/2, adding an extra layer of complexity to the mTOR network. Yet, the dynamic properties of the DEPTOR-mTOR network and the roles of DEPTOR in coordinating mTORC1/2 activation dynamics have not been characterised. Using computational modelling, systems analysis and dynamic simulations we show that DEPTOR confers remarkably rich and complex dynamic behaviours to mTOR signalling, including abrupt, bistable switches, oscillations and co-existing bistable/oscillatory responses. Transitions between these distinct modes of behaviour are enabled by modulating DEPTOR expression alone. We characterise the governing conditions for the observed dynamics by elucidating the network in its vast multi-dimensional parameter space, and develop strategies to identify core network design motifs underlying these dynamics. Our findings provide new systems-level insights into the complexity of mTOR signalling contributed by DEPTOR. PMID- 29330363 TI - Disulfide isomerization reactions in titin immunoglobulin domains enable a mode of protein elasticity. AB - The response of titin to mechanical forces is a major determinant of the function of the heart. When placed under a pulling force, the unstructured regions of titin uncoil while its immunoglobulin (Ig) domains unfold and extend. Using single-molecule atomic force microscopy, we show that disulfide isomerization reactions within Ig domains enable a third mechanism of titin elasticity. Oxidation of Ig domains leads to non-canonical disulfide bonds that stiffen titin while enabling force-triggered isomerization reactions to more extended states of the domains. Using sequence and structural analyses, we show that 21% of titin's I-band Ig domains contain a conserved cysteine triad that can engage in disulfide isomerization reactions. We propose that imbalance of the redox status of myocytes can have immediate consequences for the mechanical properties of the sarcomere via alterations of the oxidation state of titin domains. PMID- 29330364 TI - Polypharmacy through Phage Display: Selection of Glucagon and GLP-1 Receptor Co agonists from a Phage-Displayed Peptide Library. AB - A promising emerging area for the treatment of obesity and diabetes is combinatorial hormone therapy, where single-molecule peptides are rationally designed to integrate the complementary actions of multiple endogenous metabolically-related hormones. We describe here a proof-of-concept study on developing unimolecular polypharmacy agents through the use of selection methods based on phage-displayed peptide libraries (PDL). Co-agonists of the glucagon (GCG) and GLP-1 receptors were identified from a PDL sequentially selected on GCGR- and GLP1R-overexpressing cells. After two or three rounds of selection, 7.5% of randomly picked clones were GLP1R/GCGR co-agonists, and a further 1.53% were agonists of a single receptor. The phages were sequenced and 35 corresponding peptides were synthesized. 18 peptides were potent co-agonists, 8 of whom showed EC50 <= 30 pM on each receptor, comparable to the best rationally designed co-agonists reported in the literature. Based on literature examples, two sequences were engineered to stabilize against dipeptidyl peptidase IV cleavage and prolong the in vivo half-life: the engineered peptides were comparably potent to the parent peptides on both receptors, highlighting the potential use of phage-derived peptides as therapeutic agents. The strategy described here appears of general value for the discovery of optimized polypharmacology paradigms across several metabolically-related hormones. PMID- 29330365 TI - Engineered nanointerfaces for microfluidic isolation and molecular profiling of tumor-specific extracellular vesicles. AB - Extracellular vesicles (EVs) carry RNA, DNA, proteins, and lipids. Specifically, tumor-derived EVs have the potential to be utilized as disease-specific biomarkers. However, a lack of methods to isolate tumor-specific EVs has limited their use in clinical settings. Here we report a sensitive analytical microfluidic platform (EVHB-Chip) that enables tumor-specific EV-RNA isolation within 3 h. Using the EVHB-Chip, we achieve 94% tumor-EV specificity, a limit of detection of 100 EVs per MUL, and a 10-fold increase in tumor RNA enrichment in comparison to other methods. Our approach allows for the subsequent release of captured tumor EVs, enabling downstream characterization and functional studies. Processing serum and plasma samples from glioblastoma multiforme (GBM) patients, we can detect the mutant EGFRvIII mRNA. Moreover, using next-generation RNA sequencing, we identify genes specific to GBM as well as transcripts that are hallmarks for the four genetic subtypes of the disease. PMID- 29330366 TI - Each protomer of a dimeric YidC functions as a single membrane insertase. AB - The membrane insertase YidC catalyzes the entrance of newly synthesized proteins into the lipid bilayer. As an integral membrane protein itself, YidC can be found as a monomer, a dimer or also as a member of the holotranslocase SecYEGDF-YajC YidC. To investigate whether the dimeric YidC is functional and whether two copies cooperate to insert a single substrate, we constructed a fusion protein where two copies of YidC are connected by a short linker peptide. The 120 kDa protein is stable and functional as it supports the membrane insertion of the M13 procoat protein, the C-tailed protein SciP and the fusion protein Pf3-Lep. Mutations that inhibit either protomer do not inactivate the insertase and rather keep it functional. When both protomers are defective, the substrate proteins accumulate in the cytoplasm. This suggests that the dimeric YidC operates as two insertases. Consistent with this, we show that the dimeric YidC can bind two substrate proteins simultaneously, suggesting that YidC indeed functions as a monomer. PMID- 29330367 TI - Characterization of human small heat shock protein HSPB1 alpha-crystallin domain localized mutants associated with hereditary motor neuron diseases. AB - Congenital mutations in human small heat shock protein HSPB1 (HSP27) have been linked to Charcot-Marie-Tooth disease, a commonly occurring peripheral neuropathy. Understanding the molecular mechanism of such mutations is indispensable towards developing future therapies for this currently incurable disorder. Here we describe the physico-chemical properties of the autosomal dominant HSPB1 mutants R127W, S135F and R136W. Despite having a nominal effect on thermal stability, the three mutations induce dramatic changes to quaternary structure. At high concentrations or under crowding conditions, the mutants form assemblies that are approximately two times larger than those formed by the wild type protein. At low concentrations, the mutants have a higher propensity to dissociate into small oligomers, while the dissociation of R127W and R135F mutants is enhanced by MAPKAP kinase-2 mediated phosphorylation. Specific differences are observed in the ability to form hetero-oligomers with the homologue HSPB6 (HSP20). For wild-type HSPB1 this only occurs at or above physiological temperature, whereas the R127W and S135F mutants form hetero oligomers with HSPB6 at 4 degrees C, and the R136W mutant fails to form hetero oligomers. Combined, the results suggest that the disease-related mutations of HSPB1 modify its self-assembly and interaction with partner proteins thus affecting normal functioning of HSPB1 in the cell. PMID- 29330368 TI - Evidence of subtle genetic structure in the sympatric species Mullus barbatus and Mullus surmuletus (Linnaeus, 1758) in the Mediterranean Sea. AB - Using thirteen microsatellite loci for Mullus barbatus and Mullus surmuletus collected in the Mediterranean Sea, the biogeographic boundaries, genetic distribution among and within basins and the impact of prolonged exploitation in both species were investigated as a basis for understanding their population dynamics and for improving Mullus spp. stock management. Different level of diversity indices among these co-occurring species were obtained, with M. barbatus showing higher allele richness and higher mean observed and expected heterozygosity than M. surmuletus. Reduced contemporary effective population size (Ne) and M-ratio values found in both species likely reflects recent demographic changes, due to a combination of high fishing pressures, habitat fragmentation and naturally occurring fluctuations in population size. Different patterns of genetic connectivity among populations sampled within the Mediterranean were observed for both species. Higher genetic structure was found for M. barbatus as opposed to a more homogenous pattern observed in M. surmuletus samples. Adriatic populations, previously considered panmictic and isolated from other Mediterranean regions, showed geographical partitioning within the basin but also population connectivity with the northern Ionian and Tyrrhenian Seas. Our results highlight the need for temporal sampling in understanding the complex pattern of population connectivity in the Mediterranean, particularly for management purposes. PMID- 29330369 TI - Bio-templated fabrication of three-dimensional network activated carbons derived from mycelium pellets for supercapacitor applications. AB - In this work, a three-dimensional porous mycelium-derived activated carbon (3D MAC) was fabricated via a facile bio-templating method using mycelium pellets as both the carbon source and the bio-template. After ZnCl2 activation and high temperature carbonization, the specific thread-like chain structure of mycelium in the pellets can be maintained effectively. The hyphae and junctions of the cross-linking hyphae form nanowires and carbon nanoparticles that link with the neighboring nanoparticles to form a network structure. By adding NH4Cl, foreign nitrogen element doped (N-doped) 3D-MAC was obtained, which has a hierarchical porous structure composed of micropores and macropores. And the multiple pore size distribution benefits from ZnCl2 activation, the specific 3D structure and gas blowing. Meanwhile, the introduction of some hydrophilic groups and abundant N-containing functional groups in extrinsic N-doped 3D-MAC contributes to improving the Faradaic pseudocapacitance, respectively. A specific capacitance of 237.2 F g-1 at 10 mV s-1 was displayed, which is more than 1.5 times that of 3D MAC. Even at the large scan rate of 500 mV s-1, N-doped 3D-MAC still reveals a nearly symmetric rectangular shape, demonstrating great potential as a high performance supercapacitor electrode material due to the synergistic effects of its 3D hierarchical porous structure and various functional groups. PMID- 29330370 TI - A RNA-Sequencing approach for the identification of novel long non-coding RNA biomarkers in colorectal cancer. AB - Long non-coding RNAs (lncRNAs) have been implicated in human pathology, however, their role in colorectal carcinogenesis have not been fully elucidated. In the current study, whole-transcriptome analysis was performed in 3 pairs of colorectal cancer (CRC) and matched normal mucosa (NM) by RNA sequencing (RNA seq). Followed by confirmation using the Cancer Genome Atlas (TCGA) dataset, we identified 27 up-regulated and 22 down-regulated lncRNAs in CRC. Up-regulation of four lncRNAs, hereby named colorectal cancer associated lncRNA (CRCAL)-1 [AC021218.2], CRCAL-2 [LINC00858], CRCAL-3 [RP11-138J23.1] and CRCAL-4 [RP11 435O5.2], was further validated by real-time RT-PCR in 139 colorectal neoplasms and matched NM tissues. Knockdown of CRCAL-3 and CRCAL-4 in colon cancer cells reduced cell viability and colony formation ability, and induced cell cycle arrest. TCGA dataset supported the associations of CRCAL-3 and CRCAL-4 with cell cycle and revealed a co-expression network comprising dysregulated lncRNAs associated with protein-coding genes. In conclusion, RNA-seq identified numbers of novel lncRNAs dysregulated in CRC. In vitro experiments and GO term enrichment analysis indicated the functional relevance of CRCAL-3 and CRCAL-4 in association with cell cycle. Our data highlight the capability of RNA-seq to discover novel lncRNAs involved in human carcinogenesis, which may serve as alternative biomarkers and/or molecular treatment targets. PMID- 29330371 TI - Transcriptional inaccuracy threshold attenuates differences in RNA-dependent DNA synthesis fidelity between retroviral reverse transcriptases. AB - In M13mp2 lacZalpha forward mutation assays measuring intrinsic fidelity of DNA dependent DNA synthesis, wild-type human immunodeficiency virus type 1 (HIV-1) RTs of group M/subtype B previously showed >10-fold higher error rates than murine leukaemia virus (MLV) and avian myeloblastosis virus (AMV) RTs. An adapted version of the assay was used to obtain error rates of RNA-dependent DNA synthesis for several RTs, including wild-type HIV-1BH10, HIV-1ESP49, AMV and MLV RTs, and the high-fidelity mutants of HIV-1ESP49 RT K65R and K65R/V75I. Our results showed that there were less than two-fold differences in fidelity between the studied RTs with error rates ranging within 2.5 * 10-5 and 3.5 * 10-5. These results were consistent with the existence of a transcriptional inaccuracy threshold, generated by the RNA polymerase while synthesizing the RNA template used in the assay. A modest but consistent reduction of the inaccuracy threshold was achieved by lowering the pH and Mg2+ concentration of the transcription reaction. Despite assay limitations, we conclude that HIV-1BH10 and HIV-1ESP49 RTs are less accurate when copying DNA templates than RNA templates. Analysis of the RNA-dependent mutational spectra revealed a higher tendency to introduce large deletions at the initiation of reverse transcription by all HIV-1 RTs except the double-mutant K65R/V75I. PMID- 29330373 TI - The Association of Fit-Fat Index with Incident Diabetes in Japanese Men: A Prospective Cohort Study. AB - Type 2 diabetes is increasing globally and in Asia. The purpose of this study was to examine the association of a fit-fat index (FFI) with diabetes incidence among Japanese men. In total 5,014 men aged 18-64 years old, who had an annual health check up with no history of major chronic disease at baseline from 2002 to 2009 were observed. CRF was estimated via cycle ergometry. Overall, 7.6% of the men developed diabetes. The mean follow-up period was 5.3 years. Hazard ratios, 95% confidence intervals and P trend for diabetes incidence were obtained using the Cox proportional hazards model while adjusting for confounding variables. High FFI demonstrated lower risk 0.54 (0.36-0.82) compared to low BMI 0.63 (0.44 0.90), low WHtR 0.64 (0.41-1.02), and High CRF 0.72 (0.51-1.03). FFI showed a marginally stronger dose response relationship across quartiles (P (trend) =0.001) compared to BMI (P (trend) =0.002), WHtR (P (trend) =0.055), and CRF (P (trend) =0.005). Overall, both fitness and fatness play independent roles in determining diabetes incidence in Japanese men. FFI may be a more advantageous physical fitness measure because it can account for changes in fitness and/or fatness. PMID- 29330374 TI - Predicting Fibrosis Progression in Renal Transplant Recipients Using Laser-Based Infrared Spectroscopic Imaging. AB - Renal transplants have not seen a significant improvement in their 10-year graft life. Chronic damage accumulation often leads to interstitial fibrosis and tubular atrophy (IF/TA) and thus graft function loss over time. For this reason, IF/TA has been the chief suspect for a potential prognostic marker for long term outcomes. In this study, we have used infrared spectroscopic (IR) imaging to interrogate the biochemistry of regions of fibrosis from renal transplant biopsies to identify a biochemical signature that can predict rapid progression of fibrosis. IR imaging represents an approach that permits label-free biochemical imaging of human tissues towards identifying novel biomarkers for disease diagnosis or prognosis. Two cohorts were identified as progressors (n = 5, > 50% fibrosis increase between time points) and non-progressors (n = 5, < 5% increase between time points). Each patient had an early time point and late time point biopsy. Collagen associated carbohydrate moieties (nu(C-O), 1035 cm-1 and nu(C-O-C),1079 cm-1) spectral ratios demonstrated good separation between the two cohorts (p = 0.001). This was true for late and early time point biopsies suggesting the regions of fibrosis are biochemically altered in cases undergoing progressive fibrosis. Thus, IR imaging can potentially predict rapid progression of fibrosis using histologically normal early time point biopsies. PMID- 29330372 TI - Non-estrogenic Xanthohumol Derivatives Mitigate Insulin Resistance and Cognitive Impairment in High-Fat Diet-induced Obese Mice. AB - Xanthohumol (XN), a prenylated flavonoid from hops, improves dysfunctional glucose and lipid metabolism in animal models of metabolic syndrome (MetS). However, its metabolic transformation into the estrogenic metabolite, 8 prenylnaringenin (8-PN), poses a potential health concern for its use in humans. To address this concern, we evaluated two hydrogenated derivatives, alpha,beta dihydro-XN (DXN) and tetrahydro-XN (TXN), which showed negligible affinity for estrogen receptors alpha and beta, and which cannot be metabolically converted into 8-PN. We compared their effects to those of XN by feeding C57BL/6J mice a high-fat diet (HFD) containing XN, DXN, or TXN for 13 weeks. DXN and TXN were present at higher concentrations than XN in plasma, liver and muscle. Mice administered XN, DXN or TXN showed improvements of impaired glucose tolerance compared to the controls. DXN and TXN treatment resulted in a decrease of HOMA-IR and plasma leptin. C2C12 embryonic muscle cells treated with DXN or TXN exhibited higher rates of uncoupled mitochondrial respiration compared to XN and the control. Finally, XN, DXN, or TXN treatment ameliorated HFD-induced deficits in spatial learning and memory. Taken together, DXN and TXN could ameliorate the neurocognitive-metabolic impairments associated with HFD-induced obesity without risk of liver injury and adverse estrogenic effects. PMID- 29330375 TI - Intra-Specific Latitudinal Clines in Leaf Carbon, Nitrogen, and Phosphorus and their Underlying Abiotic Correlates in Ruellia Nudiflora. AB - While plant intra-specific variation in the stoichiometry of nutrients and carbon is well documented, clines for such traits have been less studied, despite their potential to reveal the mechanisms underlying such variation. Here we analyze latitudinal variation in the concentration of leaf nitrogen (N), phosphorus (P), carbon (C) and their ratios across 30 populations of the perennial herb Ruellia nudiflora. In addition, we further determined whether climatic and soil variables underlie any such latitudinal clines in leaf traits. The sampled transect spanned 5 degrees latitude (ca. 900 km) and exhibited a four-fold precipitation gradient and 2 degrees C variation in mean annual temperature. We found that leaf P concentration increased with precipitation towards lower latitudes, whereas N and C did not exhibit latitudinal clines. In addition, N:P and C:P decreased towards lower latitudes and latitudinal variation in the former was weakly associated with soil conditions (clay content and cation exchange capacity); C:N did not exhibit a latitudinal gradient. Overall, these results emphasize the importance of addressing and disentangling the simultaneous effects of abiotic factors associated with intra-specific clines in plant stoichiometric traits, and highlight the previously underappreciated influence of abiotic factors on plant nutrients operating under sharp abiotic gradients over smaller spatial scales. PMID- 29330376 TI - Layer number identification of CVD-grown multilayer graphene using Si peak analysis. AB - Since the successful exfoliation of graphene, various methodologies have been developed to identify the number of layers of exfoliated graphene. The optical contrast, Raman G-peak intensity, and 2D-peak line-shape are currently widely used as the first level of inspection for graphene samples. Although the combination analysis of G- and 2D-peaks is powerful for exfoliated graphene samples, its use is limited in chemical vapor deposition (CVD)-grown graphene because CVD-grown graphene consists of various domains with randomly rotated crystallographic axes between layers, which makes the G- and 2D-peaks analysis difficult for use in number identification. We report herein that the Raman Si peak intensity can be a universal measure for the number identification of multilayered graphene. We synthesized a few-layered graphene via the CVD method and performed Raman spectroscopy. Moreover, we measured the Si-peak intensities from various individual graphene domains and correlated them with the corresponding layer numbers. We then compared the normalized Si-peak intensity of the CVD-grown multilayer graphene with the exfoliated multilayer graphene as a reference and successfully identified the layer number of the CVD-grown graphene. We believe that this Si-peak analysis can be further applied to various 2 dimensional (2D) materials prepared by both exfoliation and chemical growth. PMID- 29330378 TI - Mechanisms controlling the impact of multi-year drought on mountain hydrology. AB - Mountain runoff ultimately reflects the difference between precipitation (P) and evapotranspiration (ET), as modulated by biogeophysical mechanisms that intensify or alleviate drought impacts. These modulating mechanisms are seldom measured and not fully understood. The impact of the warm 2012-15 California drought on the heavily instrumented Kings River basin provides an extraordinary opportunity to enumerate four mechanisms that controlled the impact of drought on mountain hydrology. Two mechanisms intensified the impact: (i) evaporative processes have first access to local precipitation, which decreased the fractional allocation of P to runoff in 2012-15 and reduced P-ET by 30% relative to previous years, and (ii) 2012-15 was 1 degrees C warmer than the previous decade, which increased ET relative to previous years and reduced P-ET by 5%. The other two mechanisms alleviated the impact: (iii) spatial heterogeneity and the continuing supply of runoff from higher elevations increased 2012-15 P-ET by 10% relative to that expected for a homogenous basin, and iv) drought-associated dieback and wildfire thinned the forest and decreased ET, which increased 2016 P-ET by 15%. These mechanisms are all important and may offset each other; analyses that neglect one or more will over or underestimate the impact of drought and warming on mountain runoff. PMID- 29330377 TI - Phenotypic and Functional Characterization of Peripheral Sensory Neurons derived from Human Embryonic Stem Cells. AB - The dorsal root ganglia (DRG) consist of a multitude of sensory neuronal subtypes that function to relay sensory stimuli, including temperature, pressure, pain and position to the central nervous system. Our knowledge of DRG sensory neurons have been predominantly driven by animal studies and considerably less is known about the human DRG. Human embryonic stem cells (hESC) are valuable resource to help close this gap. Our previous studies reported an efficient system for deriving neural crest and DRG sensory neurons from hESC. Here we show that this differentiation system gives rise to heterogeneous populations of sensory neuronal subtypes as demonstrated by phenotypic and functional analyses. Furthermore, using microelectrode arrays the maturation rate of the hESC-derived sensory neuronal cultures was monitored over 8 weeks in culture, showing their spontaneous firing activities starting at about 12 days post-differentiation and reaching maximum firing at about 6 weeks. These studies are highly valuable for developing an in vitro platform to study the diversity of sensory neuronal subtypes found within the human DRG. PMID- 29330380 TI - Automatic segmentation of the solid core and enclosed vessels in subsolid pulmonary nodules. AB - Subsolid pulmonary nodules are commonly encountered in lung cancer screening and clinical routine. Compared to other nodule types, subsolid nodules are associated with a higher malignancy probability for which the size and mass of the nodule and solid core are important indicators. However, reliably measuring these characteristics on computed tomography (CT) can be hampered by the presence of vessels encompassed by the nodule, since vessels have similar CT attenuation as solid cores. This can affect treatment decisions and patient management. We present a method based on voxel classification to automatically identify vessels and solid cores in given subsolid nodules on CT. Three experts validated our method on 170 screen-detected subsolid nodules from the Multicentric Italian Lung Disease trial. The agreement between the proposed method and the observers was substantial for vessel detection and moderate for solid core detection, which was similar to the inter-observer agreement. We found a relatively high variability in the inter-observer agreement and low method-observer agreements for delineating the borders of vessels and solid cores, illustrating the difficulty of this task. However, 92.4% of the proposed vessel and 80.6% of the proposed solid core segmentations were labeled as usable in clinical practice by the majority of experts. PMID- 29330379 TI - Identification of shared genetic variants between schizophrenia and lung cancer. AB - Epidemiology studies suggest associations between schizophrenia and cancer. However, the underlying genetic mechanisms are not well understood, and difficult to identify from epidemiological data. We investigated if there is a shared genetic architecture between schizophrenia and cancer, with the aim to identify specific overlapping genetic loci. First, we performed genome-wide enrichment analysis and second, we analyzed specific loci jointly associated with schizophrenia and cancer by the conjunction false discovery rate. We analyzed the largest genome-wide association studies of schizophrenia and lung, breast, prostate, ovary, and colon-rectum cancer including more than 220,000 subjects, and included genetic association with smoking behavior. Polygenic enrichment of associations with lung cancer was observed in schizophrenia, and weak enrichment for the remaining cancer sites. After excluding the major histocompatibility complex region, we identified three independent loci jointly associated with schizophrenia and lung cancer. The strongest association included nicotinic acetylcholine receptors and is an established pleiotropic locus shared between lung cancer and smoking. The two other loci were independent of genetic association with smoking. Functional analysis identified downstream pleiotropic effects on epigenetics and gene-expression in lung and brain tissue. These findings suggest that genetic factors may explain partly the observed epidemiological association of lung cancer and schizophrenia. PMID- 29330381 TI - Paper-based inkjet bioprinting to detect fluorescence resonance energy transfer for the assessment of anti-inflammatory activity. AB - For the first time, a paper-based fluorescence resonance energy transfer (FRET) determination with cyclic AMP (cAMP)-specific phosphodiesterase 4B (PDE4B) inhibitory assay using an inkjet-printing technique is proposed. Non-fabricated parchment paper is found to constitute a unique substrate to measure fluorescent energy transfer, due to its insignificant self-absorption, and enables efficient sample interaction. Here, we report the responsive FRET signals generated on paper, upon sequentially printing reaction components on parchment paper using a conventional inkjet printer equipped with four cartridges. After printing, the energy emitted by Eu chelate was transferred by FRET to ULight molecule on paper, detected at 665 nm. In the absence of free cAMP, a maximum FRET signal was achieved on paper, while a decrease in FRET signals was recorded when free cAMP produced by PDE4B inhibitors compete with Eu-cAMP, binding with ULight-mAb. The IM50 value was determined as 2.46 * 10-13 mole for roliparm and 1.86 * 10-13 mole for roflumilast, to effectively inhibit PDE4B activity. Inkjet printing-based FRET signal determination utilizes components that are less than the femtomole range, which was four-orders less than the standard assay method. The methodology reported here constitutes an innovative approach towards the determination of FRET signals generated on paper. PMID- 29330382 TI - SESN2 facilitates mitophagy by helping Parkin translocation through ULK1 mediated Beclin1 phosphorylation. AB - Mitophagy, the selective degradation of mitochondria by autophagy, is crucial for the maintenance of healthy mitochondrial pool in cells. The critical event in mitophagy is the translocation of cytosolic Parkin, a ubiquitin ligase, to the surface of defective mitochondria. This study elucidates a novel role of SESN2/Sestrin2, a stress inducible protein, in mitochondrial translocation of PARK2/Parkin during mitophagy. The data demonstrates that SESN2 downregulation inhibits BECN1/Beclin1 and Parkin interaction, thereby preventing optimum mitochondrial accumulation of Parkin. SESN2 interacts with ULK1 (unc-51 like kinase 1) and assists ULK1 mediated phosphorylation of Beclin1 at serine-14 position required for binding with Parkin prior to mitochondrial translocation. The trigger for SESN2 activation and regulation of Parkin translocation is the generation of mitochondrial superoxide. Scavenging of mitochondrial superoxide lower the levels of SESN2, resulting in retardation of Parkin translocation. Importantly, we observe that SESN2 mediated cytosolic interaction of Parkin and Beclin1 is PINK1 independent but mitochondrial translocation of Parkin is PINK1 dependent. Together, these findings suggest the role of SESN2 as a positive regulator of Parkin mediated mitophagy. PMID- 29330384 TI - Detection of Apparent Cell-free M. tuberculosis DNA from Plasma. AB - New diagnostics are needed to improve clinicians' ability to detect tuberculosis (TB) disease in key populations such as children and persons living with HIV and to rapidly detect drug resistance. Circulating cell-free DNA (ccfDNA) in plasma is a diagnostic target in new obstetric and oncologic applications, but its utility for diagnosing TB is not known. Here we show that Mycobacterium tuberculosis complex DNA can be detected in plasma of persons with sputum smear positive TB, even in the absence of mycobacteremia. Among 40 participants with bacteriologically-confirmed smear-positive TB disease who had plasma tested by quantitative PCR (qPCR), 18/40 (45%) had a positive result on at least one triplicate reaction. Our results suggest that plasma DNA may be a useful target for improving clinicians' ability to diagnose TB. We anticipate these findings to be the starting point for optimized methods of TB ccfDNA testing and sequence based diagnostic applications such as molecular detection of drug resistance. PMID- 29330385 TI - Docking, thermodynamics and molecular dynamics (MD) studies of a non-canonical protease inhibitor, MP-4, from Mucuna pruriens. AB - Sequence and structural homology suggests that MP-4 protein from Mucuna pruriens belongs to Kunitz-type protease inhibitor family. However, biochemical assays showed that this protein is a poor inhibitor of trypsin. To understand the basis of observed poor inhibition, thermodynamics and molecular dynamics (MD) simulation studies on binding of MP-4 to trypsin were carried out. Molecular dynamics simulations revealed that temperature influences the spectrum of conformations adopted by the loop regions in the MP-4 structure. At an optimal temperature, MP-4 achieves maximal binding while above and below the optimum temperature, its functional activity is hampered due to unfavourable flexibility and relative rigidity, respectively. The low activity at normal temperature is due to the widening of the conformational spectrum of the Reactive Site Loop (RSL) that reduces the probability of formation of stabilizing contacts with trypsin. The unique sequence of the RSL enhances flexibility at ambient temperature and thus reduces its ability to inhibit trypsin. This study shows that temperature influences the function of a protein through modulation in the structure of functional domain of the protein. Modulation of function through appearance of new sequences that are more sensitive to temperature may be a general strategy for evolution of new proteins. PMID- 29330387 TI - Intravesical cidofovir application in BK virus cystitis after allogeneic hematopoetic stem cell transplantation (HSCT) is safe and highly effective. PMID- 29330383 TI - Development of a PET radioligand for potassium channels to image CNS demyelination. AB - Central nervous system (CNS) demyelination represents the pathological hallmark of multiple sclerosis (MS) and contributes to other neurological conditions. Quantitative and specific imaging of demyelination would thus provide critical clinical insight. Here, we investigated the possibility of targeting axonal potassium channels to image demyelination by positron emission tomography (PET). These channels, which normally reside beneath the myelin sheath, become exposed upon demyelination and are the target of the MS drug, 4-aminopyridine (4-AP). We demonstrate using autoradiography that 4-AP has higher binding in non-myelinated and demyelinated versus well-myelinated CNS regions, and describe a fluorine containing derivative, 3-F-4-AP, that has similar pharmacological properties and can be labeled with 18F for PET imaging. Additionally, we demonstrate that [18F]3 F-4-AP can be used to detect demyelination in rodents by PET. Further evaluation in Rhesus macaques shows higher binding in non-myelinated versus myelinated areas and excellent properties for brain imaging. Together, these data indicate that [18F]3-F-4-AP may be a valuable PET tracer for detecting CNS demyelination noninvasively. PMID- 29330388 TI - Donor HSCs with a preexisting ASXL1-mutation led to the development of FLT3-ITD positive AML in the donor and FLT3-ITD negative AML in the recipient after unrelated transplant. PMID- 29330389 TI - Accuracy and usability of the eGVHD app in assessing the severity of graft-versus host disease at the 2017 EBMT annual congress. PMID- 29330386 TI - On the detection of cerebral metabolic depression in experimental traumatic brain injury using Chemical Exchange Saturation Transfer (CEST)-weighted MRI. AB - Metabolic abnormalities are commonly observed in traumatic brain injury (TBI) patients exhibiting long-term neurological deficits. This study investigated the feasibility and reproducibility of using chemical exchange saturation transfer (CEST) MRI to detect cerebral metabolic depression in experimental TBI. Phantom and in vivo CEST experiments were conducted at 9.4 Tesla to optimize the selective saturation for enhancing the endogenous contrast-weighting of the proton exchanges over the range of glucose proton chemical shifts (glucoCEST) in the resting rat brain. The optimized glucoCEST-weighted imaging was performed on a closed-head model of diffuse TBI in rats with 2-deoxy-D-[14C]-glucose (2DG) autoradiography validation. The results demonstrated that saturation duration of 1-2 seconds at pulse powers 1.5-2uT resulted in an improved contrast-to-noise ratio between the gray and white matter comparable to 2DG autoradiographs. The intrasubject (n = 4) and intersubject (n = 3) coefficient of variations for repeated glucoCEST acquisitions (n = 4) ranged between 8-16%. Optimization for the TBI study revealed that glucoCEST-weighted images with 1.5MUT power and 1 s saturation duration revealed the greatest changes in contrast before and after TBI, and positively correlated with 2DG autoradiograph (r = 0.78, p < 0.01, n = 6) observations. These results demonstrate that glucoCEST-weighted imaging may be useful in detecting metabolic abnormalities following TBI. PMID- 29330390 TI - Freezing the graft is not necessary for autotransplants for plasma cell myeloma and lymphomas. AB - We studied rates of granulocyte and platelets recovery in 359 consecutive subjects receiving blood cell infusions in the context of autotransplants for plasma cell myeloma (N = 216) and lymphomas (N = 143). Blood cells were mobilised with filgrastim given for 4-5 days and collected after a median of 2 (range, 1-2) apheresis. Apheresis products were stored at 4 degrees C for a median of 3 days (range, 2-6 days). Most subjects received carmustine, etoposide, cytarabine and melphalan (BEAM), cyclophosphamide, carmustine and etoposide (CBV) or high-dose melphalan. Filgrastim was given post transplant to 319 subjects. Median numbers of mononuclear cells collected was 31 * 10E + 6/kg (interquartile range (IQR) 37 * 10E + 6 cells/kg). Median numbers of CD34-positive cells collected was 3.6 * 10E + 6/kg (IQR 3.8 * 10E + 6/Kg). Median viability after collection was 90% (IQR 7%) after storage, 88% (IQR 12%). A total of 255 of 256 evaluable subjects recovered bone marrow function and there was no late bone marrow failure. Median interval to neutrophils >0.5 * E + 9/L was 13 days (range, 9-39 days) and to platelets >20 * 10E + 9/L, 16 days (range, 7-83 days). These rates and ranges seem comparable to those reported after autotransplants of frozen blood cells. There was no correlation between numbers of storage days at 4 degrees C and viability afte storage (r = -0.018, p = 0.14)) nor rates of recovery of neutrophils (r = -0.054, p = 0.52) or platelets (r = 0.116, p = 0.14). Blood cells collected for autotransplant can be stored at 4 degrees C for 6 d. This method is simple, inexpensive and widely applicable. PMID- 29330391 TI - Impact of antithymocyte globulin doses in reduced intensity conditioning before allogeneic transplantation from matched sibling donor for patients with acute myeloid leukemia: a report from the acute leukemia working party of European group of Bone Marrow Transplantation. AB - Antithymocyte globulin (ATG) is commonly used for graft-vs.-host disease (GVHD) prophylaxis in unrelated donor allogeneic transplantation (Allo-HSCT). However, its use is still controversial in matched sibling donor (MSD) Allo-HSCT, notably after reduced intensity conditioning (RIC). ATG dose may influence the outcome, explaining in part the discordant conclusions in MSD Allo-HSCT. We, therefore, analyzed the impact of ATG doses in patients with acute myeloid leukemia in first complete remission undergoing RIC Allo-HSCT from a MSD. We analyzed 234 patients from the EBMT registry and compared outcome according to given ATG dose (high dose: >= 6 mg/kg, n = 39 or low dose: < 6 mg/kg, n = 195). No difference was found in the cumulative incidence of acute (grade 2-4: high dose vs. low dose: 21% vs. 13%, p = 0.334; adjusted hazard ratio (HR): 1.20, p = 0.712) and chronic GVHD (extensive: high dose vs. low dose: 19% vs. 18%, p = 0.897; adjusted HR: 1.01, p = 0.980). In contrast, high dose of ATG significantly increased the incidence of relapse (52% vs. 26%, p = 0.011; adjusted HR: 1.31, p = 0.001) leading to impaired outcome (HR progression-free survival (PFS): 1.23, p = 0.002; HR overall survival (OS): 1.17, p = 0.029; HR GVHD and relapse-free survival (GRFS): 1.20, p = 0.005). We conclude that an ATG dose <6 mg/kg is sufficient for GVHD prophylaxis, while higher doses impair disease control and outcome. PMID- 29330392 TI - Haploidentical hematopoietic SCT using helical tomotherapy for total-body irradiation and targeted dose boost in patients with high-risk/refractory acute lymphoblastic leukemia. AB - A novel conditioning regimen using helical tomotherapy (HT) was developed to deliver 10 Gy for total body irradiation (TBI) and simultaneously augment dose to 12 Gy for targeted dose boost to total marrow, central nervous system leukemia, and extramedullary disease sites in patients with high-risk or relapsed/refractory acute lymphoblastic leukemia (ALL) receiving haploidentical allogeneic hematopoietic stem cell transplantation (allo-HSCT). Fourteen patients were included, eight of these patients were in first complete remission (CR1), one was in CR2, one had a partial response and four patients had refractory disease at transplantation. The median delivered average dose was 11.395 Gy (range 10.06-12.17). The median planning target volume D95 was 8.2 Gy (range 7.52 9.01). The median delivered dose to skeleton bone with active bone marrow sites was 12.685 Gy (range 11.12-13.52). The results of this trial suggest that using HT TBI confers satisfactory immunosuppression and excellent eradication of malignant cells in patients with high-risk ALL undergoing allo-HSCT, especially in those with refractory ALL. After a median follow-up of 14.6 months (range 4 28), four patients experienced non-relapse mortality, ten patients are alive in durable CR including remission of extramedullary leukemic infiltration. One-year overall survival and disease-free survival rates post-transplantation were both 70.7%. PMID- 29330393 TI - Haploidentical bone marrow transplantation with post transplant cyclophosphamide for patients with X-linked adrenoleukodystrophy: a suitable choice in an urgent situation. AB - Allogeneic hematopoietic stem cell transplantation (HSCT) is the only treatment that enhances survival and stabilizes neurologic symptoms in X-linked adrenoleukodystrophy (X-ALD) with cerebral involvement, a severe demyelinating disease of childhood. Patients with X-ALD who lack a well-matched HLA donor need a rapid alternative. Haploidentical HSCT using post transplant cyclophosphamide (PT/Cy) has been performed in patients with malignant and nonmalignant diseases showing similar outcomes compared to other alternative sources. We describe the outcomes of transplants performed for nine X-ALD patients using haploidentical donors and PT/Cy. Patients received conditioning regimen with fludarabine 150 mg/m2, cyclophosphamide 29 mg/kg and 2 Gy total body irradiation (TBI) with or without antithymocyte globulin. Graft-vs.-host disease prophylaxis consisted of cyclophosphamide 50 mg/kg/day on days +3 and +4, tacrolimus or cyclosporine A and mycophenolate mofetil. One patient had a primary graft failure and was not eligible for a second transplant. Three patients had secondary graft failure and were successfully rescued with second haploidentical transplants. Trying to improve engraftment, conditioning regimen was changed, substituting 2 Gy TBI for 4 Gy total lymphoid irradiation. Eight patients are alive and engrafted (17-37 months after transplant). Haploidentical HSCT with PT/Cy is a feasible alternative for X-ALD patients lacking a suitable matched donor. Graft failure has to be addressed in further studies. PMID- 29330394 TI - Impact of pretransplant leukemic blast% in bone marrow and peripheral blood on transplantation outcomes of patients with acute myeloid leukemia undergoing allogeneic stem cell transplantation in non-CR. PMID- 29330395 TI - Predicting failure of hematopoietic stem cell mobilization before it starts: the predicted poor mobilizer (pPM) score. AB - Predicting mobilization failure before it starts may enable patient-tailored strategies. Although consensus criteria for predicted PM (pPM) are available, their predictive performance has never been measured on real data. We retrospectively collected and analyzed 1318 mobilization procedures performed for MM and lymphoma patients in the plerixafor era. In our sample, 180/1318 (13.7%) were PM. The score resulting from published pPM criteria had sufficient performance for predicting PM, as measured by AUC (0.67, 95%CI: 0.63-0.72). We developed a new prediction model from multivariate analysis whose score (pPM score) resulted in better AUC (0.80, 95%CI: 0.76-0.84, p < 0001). pPM-score included as risk factors: increasing age, diagnosis of NHL, positive bone marrow biopsy or cytopenias before mobilization, previous mobilization failure, priming strategy with G-CSF alone, or without upfront plerixafor. A simplified version of pPM-score was categorized using a cut-off to maximize positive likelihood ratio (15.7, 95%CI: 9.9-24.8); specificity was 98% (95%CI: 97-98.7%), sensitivity 31.7% (95%CI: 24.9-39%); positive predictive value in our sample was 71.3% (95%CI: 60 80.8%). Simplified pPM-score can "rule in" patients at very high risk for PM before starting mobilization, allowing changes in clinical management, such as choice of alternative priming strategies, to avoid highly likely mobilization failure. PMID- 29330396 TI - Comparable survival using a CMV-matched or a mismatched donor for CMV+ patients undergoing T-replete haplo-HSCT with PT-Cy for acute leukemia: a study of behalf of the infectious diseases and acute leukemia working parties of the EBMT. AB - The role of donor CMV serostatus in the setting of non T-cell depleted haplo-HSCT with post-transplant cyclophosphamide (PT-Cy) has not been specifically addressed so far. Here we analyzed the impact of the donor CMV serological status on the outcome of 983 CMV seropositive (CMV+), acute leukemia patients receiving a first, non T-cell depleted haplo-HSCT registered in the EBMT database. The 1-year NRM was 21.3% (95% CI: 18.4-24.8) and 18.8% (95% CI: 13.8-25.5) in the CMV D+/R+ and D-/R+ pairs, respectively (p = 0.40). Similarly, 1-year OS was 55.1% (95% CI: 50.1-58.0) and 55.7% (95% CI: 48.0-62.8) in the same groups (p = 0.50). The other main outcomes were comparable. No difference in NRM nor OS was observed after stratification for the intensity of conditioning and multivariate anaysis confirmed the lack of significant association with NRM or OS. In conclusion, the choice of a CMV-seronegative donor did not impair early survival of CMV seropositive patients with acute leukemia after a first, non T-cell depleted haploidentical HSCT and PT-Cy among this series of 983 consecutive patients. Future research may focus on the assessment of the hierarchy of all the donor variables. PMID- 29330397 TI - Safety and efficacy of haploidentical stem cell transplantation for multiple myeloma. PMID- 29330398 TI - Management of important adverse events associated with inotuzumab ozogamicin: expert panel review. PMID- 29330399 TI - Geriatric assessment and quality of life in older patients considered for allogeneic hematopoietic cell transplantation: a prospective risk factor and serial assessment analysis. AB - Allogeneic hematopoietic cell transplantation (alloHCT) in older patients requires the weighing of risks and benefits for this potentially curative treatment while facing age-related limitations. Comprehensive geriatric and quality of life (EORTC QLQ C-30) assessements (CGA/QOL) in addition to disease specific data were obtained in 108 consecutive patients (>=60 years) pre-HCT, at day +30, +100, and +180. Median follow-up of 106 patients alive at alloHCT was 43.5 months, median age 66 years (range 60-78). Eighty-six (81.2%) had advanced disease risk at HCT and 99 (91.7%) patients received reduced intensity conditioning (RIC). Median PFS was 13.4 months with 38.3% (95% CI: 28.6-47.4) alive and in remission at 2 years; median OS was 15.6 months with 43.9% (95% CI: 34.3-53.4) alive at 2 years. Prognostic factors for PFS were: age: HR 1.084 (95% CI: 1.032-1.137, p = 0.0011); HCT-CI: HR 1.13 (95% CI: 1.001-1.274, p = 0.048); for OS: age: HR 1.08 (95% CI: 1.031-1.139, p = 0.0017), Karnofsky Index: HR 0.97 (95% CI: 0.954-0.996, p = 0.02); EORTC QLQ C-30 fatigue: HR 1.09 (95% CI: 1.004 1.185, p = 0.039); Up-and-Go: HR 3.26 (95% CI: 1.001-10.6, p = 0.049). Follow-up assessments as time-dependent covariates were highly prognostic for OS and PFS. CGA/QOL confer additional prognostic utility in older alloHCT recipients. PMID- 29330400 TI - Acute kidney injury following haplo stem cell transplantation: incidence, risk factors and outcome. PMID- 29330401 TI - Successful management of concurrent acquired hemophilia A and a lupus anticoagulant in a pediatric hematopoietic stem cell transplant patient. PMID- 29330402 TI - Chronic graft-versus-host disease features in double unit cord blood transplantation according to National Institutes of Health 2005 cGVHD Consensus criteria. PMID- 29330403 TI - Ruxolitinib in steroid-refractory chronic graft-versus-host disease: experience of a single center. PMID- 29330404 TI - Association analysis between SUFU polymorphism rs17114808 and acute graft versus host disease after hematopoietic stem cell transplantation. PMID- 29330405 TI - Better outcome with haploidentical over HLA-matched related donors in patients with Hodgkin's lymphoma undergoing allogeneic haematopoietic cell transplantation a study by the Francophone Society of Bone Marrow Transplantation and Cellular Therapy. AB - The question of the best donor type between haploidentical (HAPLO) and matched related donors (MRD) for patients with advanced HL receiving an allogeneic hematopoietic cell transplantation (allo-HCT) is still debated. Given the lack of data comparing these two types of donor in the setting of non-myeloablative (NMA) or reduced-intensity (RIC) allo-HCT, we performed a multicentre retrospective study using graft-vs.-host disease-free relapse-free survival (GRFS) as our primary endpoint. We analysed the data of 151 consecutive HL patients who underwent NMA or RIC allo-HCT from a HAPLO (N = 61) or MRD (N = 90) between January 2011 and January 2016. GRFS was defined as the probability of being alive without evidence of relapse, grade 3-4 acute GVHD or chronic GVHD. In multivariable analysis, MRD donors were independently associated with lower GRFS compared to HAPLO donors (HR = 2.95, P < 0.001). Disease status at transplant other than CR was also associated with lower GRFS in multivariable analysis (HR = 1.74, P = 0.01). In addition, the administration of ATG was independently linked to higher GRFS (HR = 0.52, P = 0.009). In summary, we observed significantly higher GRFS in HL patients receiving an allo-HCT using the HAPLO PT Cy platform compared to MRD. PMID- 29330406 TI - Adjuvant role of SeptiFast to improve the diagnosis of sepsis in a large cohort of hematological patients. AB - Febrile neutropenia and sepsis are common and life-threatening complications in hematological diseases. This study was performed retrospectively in 514 patients treated for febrile neutropenia at our institute, to investigate the clinical usefulness of a molecular tool, LightCycler(r) SeptiFast test (SF), to promptly recognize pathogens causing sepsis in hematological patients. We collected 1837 blood samples of 514 consecutive hematological patients. The time of processing is short. Overall, 757 microorganisms in 663 episodes were detected by molecular test and standard blood cultures (BC): 73.6% Gram-positive bacteria, 23.9% Gram negative bacteria, and 2.5% fungal species. This large analysis demonstrated a significant episode-to episode agreement (71.9%) between the two methods, higher in negative samples (89.14%), and a specificity of 75.89%. Clinical variables that gave a statistically significant contribution to their concordance were absolute neutrophil count, ongoing antimicrobial therapy, timing of test execution, and organ localization of infection. The large analysis highlights the potential of molecular-based assays directly performed on blood samples, especially if implementing the detection of antibiotic resistance genes, which was lacking in the used study. PMID- 29330407 TI - Multiscale and luminescent, hollow microspheres for gas phase thermometry. AB - Recently developed laser-based measurement techniques are used to image the temperatures and velocities in gas flows. They require new phosphor materials with an unprecedented combination of properties. A novel synthesis procedure is described here; it results in hierarchically structured, hollow microspheres of Eu3+-doped Y2O3, with unusual particle sizes and very good characteristics compared to full particles. Solution-based precipitation on polymer microballoons produces very stable and luminescent, ceramic materials of extremely low density. As a result of the - compared to established template-directed syntheses - reduced mass of polymer that is lost upon calcination, micron-sized particles are obtained with mesoporous walls, low defect concentrations, and nanoscale wall thicknesses. They can be produced with larger diameters (~25 um) compared to known hollow spheres and exhibit an optimized flow behavior. Their temperature sensing properties and excellent fluidic follow-up behavior are shown by determining emission intensity ratios in a specially designed heating chamber. Emission spectroscopy and imaging, electron microscopy and X-ray diffraction results are presented for aerosolizable Y2O3 with an optimized dopant concentration (8%). Challenges in the field of thermofluids can be addressed by combined application of thermometry and particle image velocimetry with such hollow microparticles. PMID- 29330408 TI - Collagen Type 1 Accelerates Healing of Ruptured Fetal Membranes. AB - Preterm premature rupture of membranes (pPROM) is a major cause of preterm birth. Recently, extracellular matrix-directed treatment is applied for wound healing. Here, we used a pregnant mouse model to test the efficacy of collagen type 1 gel for healing of the prematurely ruptured fetal membranes. Although injection of PBS into the ruptured fetal membranes resulted in 40% closure, injection of collagen type 1 improved closure rates to 90% within 72 h. Macrophages of the M2 wound healing phenotype were entrapped in the collagen layer. In primary human amnion mesenchymal cells, collagen type 1 gels activated collagen receptor discoidin domain receptor 2 (DDR2) to induce myosin light chain phosphorylation and migration of injured amnion mesenchymal cells. These findings define the mechanisms for matrix-directed therapeutics for pPROM. PMID- 29330409 TI - Induction of ferroptosis and mitochondrial dysfunction by oxidative stress in PC12 cells. AB - Neurodegenerative diseases (NDD) are typically associated with neuron loss in nervous system areas. Interventions with related death mechanisms may ameliorate NDD progression. Oxidative stress plays an important role in NDD cell death routines. However, tert-butylhydroperoxide (t-BHP), a widely used oxidative stress stimulus, induces neural cell death through a mechanism that remains elusive. In our study, the ferroptosis marker events occurred after co-treatment with 100 MUM t-BHP for 1 h, all of which were reversed in the presence of the ferroptosis inhibitor ferrostatin-1 (Fer-1) and the iron chelator deferoxamine, implying the occurrence of ferroptosis. Moreover, mitochondrial dysfunction accompanied by a decreased in membrane potential and ATP production, increased mitochondrial ROS generation. Furthermore, this mitochondrial dysfunction could be reversed by Fer-1. In addition, JNK1/2 and ERK1/2 were activated upstream of the ferroptosis and mitochondrial dysfunction. In summary, these data suggest that ferroptosis, coupled with mitochondrial dysfunction, was involved in t-BHP induced PC12 death. JNK1/2 and ERK1/2 played important roles in t-BHP-induced cell death. Overall, this study might provide clues to the oxidative stress-based strategies for cell protection in NDD. PMID- 29330411 TI - X-ray-induced Scintillation Governed by Energy Transfer Process in Glasses. AB - The efficiency of X-ray-induced scintillation in glasses roughly depends on both the effective atomic number Zeff and the photoluminescence quantum efficiency Qeff of glass, which are useful tools for searching high-performance phosphors. Here, we demonstrate that the energy transfer from host to activators is also an important factor for attaining high scintillation efficiency in Ce-doped oxide glasses. The scintillation intensity of glasses with coexisting fractions of Ce3+ and Ce4+ species is found to be higher than that of a pure-Ce3+-containing glass with a lower Zeff value. Values of total attenuation of each sample indicate that there is a non-linear correlation between the scintillation intensity and the product of total attenuation and Qeff. The obtained results illustrate the difficulty in understanding the luminescence induced by ionizing radiation, including the energy absorption and subsequent energy transfer. Our findings may provide a new approach for synthesizing novel scintillators by tailoring the local structure. PMID- 29330410 TI - The Impact of COMT and Childhood Maltreatment on Suicidal Behaviour in Affective Disorders. AB - The inconsistent findings on the association between COMT (catecholamine-O-methyl transferase) and suicidal behaviour gave reason to choose a clear phenotype description of suicidal behaviour and take childhood maltreatment as environmental factor into account. The aim of this candidate-gene-association study was to eliminate heterogeneity within the sample by only recruiting affective disorder patients and find associations between COMT polymorphisms and defined suicidal phenotypes. In a sample of 258 affective disorder patients a detailed clinical assessment (e.g. CTQ, SCAN, HAMD, SBQ-R, VI-SURIAS, LPC) was performed. DNA of peripheral blood samples was genotyped using TaqMan(r) SNP Genotyping Assays. We observed that the haplotype GAT of rs737865, rs6269, rs4633 is significantly associated with suicide attempt (p = 0.003 [pcorr = 0.021]), and that there is a tendency towards self-harming behaviour (p = 0.02 [pcorr = 0.08]) and also NSSI (p = 0.03 [pcorr = 0.08]), though the p values did not resist multiple testing correction. The same effect we observed with the 4-marker slide window haplotype, GATA of rs737865, rs6269, rs4633, rs4680 (p = 0.009 [pcorr = 0.045]). The findings support an association between the COMT gene and suicidal behaviour phenotypes with and without childhood maltreatment as environmental factor. PMID- 29330412 TI - High expression of Endogenous Retroviruses from intrauterine life to adulthood in two mouse models of Autism Spectrum Disorders. AB - Retroelements, such as Human Endogenous Retroviruses (HERVs), have been implicated in many complex diseases, including neurological and neuropsychiatric disorders. Previously, we demonstrated a distinctive expression profile of specific HERV families in peripheral blood mononuclear cells from Autistic Spectrum Disorders (ASD) patients, suggesting their involvement in ASD. Here we used two distinct ASD mouse models: inbred BTBR T+tf/J mice and CD-1 outbred mice prenatally exposed to valproic acid. Whole embryos, blood and brain samples from the offspring were collected at different ages and the expression of several ERV families (ETnI, ETnII-alpha, ETnII-beta, ETnII-gamma, MusD and IAP), proinflammatory cytokines (IL-1beta, IL-6 and TNF-alpha) and Toll-like receptors (TLR3 and TLR4) was assessed. In the two distinct mouse models analysed, the transcriptional activity of the ERV families was significant higher in comparison with corresponding controls, in whole embryos, blood and brain samples. Also the expression levels of the proinflammatory cytokines and TLRs were significantly higher than controls. Current results are in agreement with our previous findings in ASD children, supporting the hypothesis that ERVs may serve as biomarkers of atypical brain development. Moreover, the changes in ERVs and proinflammatory cytokines expression could be related with the autistic-like traits acquisition in the two mouse models. PMID- 29330413 TI - Nerve wrap after end-to-end and tension-free neurorrhaphy attenuates neuropathic pain: A prospective study based on cohorts of digit replantation. AB - The repair of injured peripheral nerve is still challenging for surgeons. The end to-end and tension-free neurorrhaphy is the current gold standard for reconstruction after complete nerve transection without significant defect. The main objective of this study neurorrhaphy in digit replantation affects the sensory recovery and neuropathic pain in replanted digit. Total 101 patients who received replantation of single completely amputated digit were included for analysis in this study. In group I (n = 49), the digital nerves were repaired with end-to-end and tension-free neurorrhaphy and then wrapped into a tendon derived collagen nerve conduit. In group II (n = 52), the digital nerves were repaired with end-to-end and tension-free neurorrhaphy only. The static two-point discrimination (s2PD) was performed to evaluate sensory recovery. Visual analog scale (VAS) scores of pain at rest and with exertion were measured respectively. The s2PD tests at three and six months after surgery did not show any significant difference between the two groups. The VAS scores at rest and with exertion of group I were significantly reduced compared with those of group II at three and six months after surgery. Thus, we concluded that nerve wrap into a collagen conduit after end-to-end and tension-free neurorrhaphy could attenuate neuropathic pain after digit replantation but have no benefit for sensory recovery. PMID- 29330414 TI - Partially oxidized polyvinyl alcohol conduitfor peripheral nerve regeneration. AB - Surgical reconstruction of peripheral nerves injuries with wide substance-loss is still a challenge. Many studies focused on the development of artificial nerve conduits made of synthetic or biological materials but the ideal device has not yet been identified. Here, we manufactured a conduit for peripheral nerve regeneration using a novel biodegradable hydrogel we patented that is oxidized polyvinyl alcohol (OxPVA). Thus, its characteristics were compared with neat polyvinyl alcohol (PVA) and silk-fibroin (SF) conduits, through in vitro and in vivo analysis. Unlike SF, OxPVA and neat PVA scaffolds did not support SH-SY5Y adhesion and proliferation in vitro. After implantation in rat model of sciatic nerve transection, the three conduits sustained the regeneration of the injured nerve filling a gap of 5 mm in 12 weeks. Implanted animals showed a good gait recovery. Morphometric data related to the central portion of the explanted conduit interestingly highlighted a significantly better outcome for OxPVA scaffolds compared to PVA conduits in terms of axon density, also with respect to the autograft group. This study suggests the potential of our novel biomaterial for the development of conduits for clinical use in case of peripheral nerve lesions with substance loss. PMID- 29330415 TI - Unusual multiscale mechanics of biomimetic nanoparticle hydrogels. AB - Viscoelastic properties are central for gels and other materials. Simultaneously, high storage and loss moduli are difficult to attain due to their contrarian requirements to chemical structure. Biomimetic inorganic nanoparticles offer a promising toolbox for multiscale engineering of gel mechanics, but a conceptual framework for their molecular, nanoscale, mesoscale, and microscale engineering as viscoelastic materials is absent. Here we show nanoparticle gels with simultaneously high storage and loss moduli from CdTe nanoparticles. Viscoelastic figure of merit reaches 1.83 MPa exceeding that of comparable gels by 100-1000 times for glutathione-stabilized nanoparticles. The gels made from the smallest nanoparticles display the highest stiffness, which was attributed to the drastic change of GSH configurations when nanoparticles decrease in size. A computational model accounting for the difference in nanoparticle interactions for variable GSH configurations describes the unusual trends of nanoparticle gel viscoelasticity. These observations are generalizable to other NP gels interconnected by supramolecular interactions and lead to materials with high-load bearing abilities and energy dissipation needed for multiple technologies. PMID- 29330416 TI - Virtual Genome Walking across the 32 Gb Ambystoma mexicanum genome; assembling gene models and intronic sequence. AB - Large repeat rich genomes present challenges for assembly using short read technologies. The 32 Gb axolotl genome is estimated to contain ~19 Gb of repetitive DNA making an assembly from short reads alone effectively impossible. Indeed, this model species has been sequenced to 20* coverage but the reads could not be conventionally assembled. Using an alternative strategy, we have assembled subsets of these reads into scaffolds describing over 19,000 gene models. We call this method Virtual Genome Walking as it locally assembles whole genome reads based on a reference transcriptome, identifying exons and iteratively extending them into surrounding genomic sequence. These assemblies are then linked and refined to generate gene models including upstream and downstream genomic, and intronic, sequence. Our assemblies are validated by comparison with previously published axolotl bacterial artificial chromosome (BAC) sequences. Our analyses of axolotl intron length, intron-exon structure, repeat content and synteny provide novel insights into the genic structure of this model species. This resource will enable new experimental approaches in axolotl, such as ChIP-Seq and CRISPR and aid in future whole genome sequencing efforts. The assembled sequences and annotations presented here are freely available for download from https://tinyurl.com/y8gydc6n . The software pipeline is available from https://github.com/LooseLab/iterassemble . PMID- 29330417 TI - High STAP1 expression in DUX4-rearranged cases is not suitable as therapeutic target in pediatric B-cell precursor acute lymphoblastic leukemia. AB - Approximately 25% of the pediatric B-cell precursor acute lymphoblastic leukemia (BCP-ALL) cases are genetically unclassified. More thorough elucidation of the pathobiology of these genetically unclassified ('B-other') cases may identify novel treatment options. We analyzed gene expression profiles of 572 pediatric BCP-ALL cases, representing all major ALL subtypes. High expression of STAP1, an adaptor protein downstream of the B-cell receptor (BCR), was identified in BCR ABL1-like and non-BCR-ABL1-like B-other cases. Limma analysis revealed an association between high expression of STAP1 and BCR signaling genes. However, STAP1 expression and pre-BCR signaling were not causally related: cytoplasmic IgMU levels were not abnormal in cases with high levels of STAP1 and stimulation of pre-BCR signaling did not induce STAP1 expression. To elucidate the role of STAP1 in BCP-ALL survival, expression was silenced in two human BCP-ALL cell lines. Knockdown of STAP1 did not reduce the proliferation rate or viability of these cells, suggesting that STAP1 is not a likely candidate for precision medicines. Moreover, high expression of STAP1 was not predictive for an unfavorable prognosis of BCR-ABL1-like and non-BCR-ABL1-like B-other cases. Remarkably, DUX4-rearrangements and intragenic ERG deletions, were enriched in cases harboring high expression of STAP1. PMID- 29330418 TI - HLA-B, HLA-C and KIR improve the predictive value of IFNL3 for Hepatitis C spontaneous clearance. AB - IFNL3 is the strongest predictor of spontaneous resolution (SR) of hepatitis C virus (HCV), however, consideration of IFNL3 genotype alone is of limited clinical value for the prediction of SR or chronic HCV infection. The objective of this study was to analyze the impact of HLA-B, HLA-C and KIRs on SR, as well as their additive effects on the predictive value of the IFNL3 genotype. We conducted a retrospective study of HIV patients that included both SR and chronic HCV patients. In our study, 61.6% of patients with IFNL3 CC achieved SR, and 81.5% with non-CC genotypes did not achieve SR. HLA-B*44, HLA-C*12, and KIR3DS1 were identified as predictive factors for SR, with percentages of 77.4%, 85.7% and 86.2%, respectively, for patients who did not experience SR. The presence of at least one of these three markers, defined as a genetically unfavorable profile (GUP), combined with the IFNL3 non-CC genotype showed a value of 100% for non-SR. The absence of the three markers, defined as a genetically favorable profile (GFP), in addition to the IFNL3 CC genotype showed a percentage of 74.1% for SR. The combination of these markers in addition to the IFNL3 genotype improves the predictive value of IFNL3 for SR of acute HCV infection in HIV patients, which would be clinically valuable. PMID- 29330419 TI - Parkinson disease with constipation: clinical features and relevant factors. AB - Constipation is one of the most frequent non-motor symptoms of Parkinson disease (PD) and it may be ignored by PD patients, leading to this problem not to be reported in time. The relationships between constipation and demographic variables, motor symptoms and other non-motor symptoms of PD are still unknown. PD patients were evaluated by diagnostic criteria of functional constipation in Rome III and divided into PD with constipation (PD-C) and PD with no constipation (PD-NC) groups. PD patients were assessed by rating scales of motor symptoms and other non-motor symptoms, activity of daily living and quality of life. The frequency of constipation in PD patients was 61.4%, and 24.5% of PD patients had constipation before the onset of motor symptoms. PD-C group had older age and age of onset, longer disease duration, more advanced disease stage, and more severe motor symptoms and non-motor symptoms, including worse cognition and emotion, poorer sleep quality, severer autonomic symptoms, fatigue and apathy. Binary Logistic regression analysis showed that the age, H-Y stage, depression, anxiety and autonomic dysfunction increased the risk of constipation in PD patients. Constipation exerted serious impact on the activity of daily living and quality of life in PD patients. PMID- 29330420 TI - Left ventricular hypertrophy and cognitive function: a systematic review. AB - Cognitive impairment is common in patients with hypertension. Left ventricular hypertrophy (LVH) is recognised as a marker of hypertension-related organ damage and is a strong predictor of coronary artery disease, heart failure and stroke. There is evidence that LVH is independently associated with cognitive impairment, even after adjustment for the presence of hypertension. We conducted a systematic review that examined cognitive impairment in adults with LVH. Independent searches were performed in Ovid MEDLINE, Ovid psycInfo and PubMed with the terms left ventricular hypertrophy and cognition. Seventy-three studies were identified when both searches were combined. After limiting the search to studies that were: (1) reported in English; (2) conducted in humans; (3) in adults aged 50 years and older; and (4) investigated the relationship between LVH and cognitive performance, nine papers were included in this systematic review. The majority of studies found an association between LVH and cognitive performance. Inspection of results indicated that individuals with LVH exhibited a lower performance in cognitive tests, when compared to individuals without LVH. Memory and executive functions were the cognitive domains that showed a specific vulnerability to the presence of LVH. A possible mechanism for the relationship between LVH and cognition is the presence of cerebral white matter damage. White matter lesions occur frequently in patients with LVH and may contribute to cognitive dysfunction. Together, the results of this review suggest that memory impairment and executive dysfunction are the cognitive domains that showed a particular association with the presence of LVH. PMID- 29330421 TI - Premature recruitment of oocyte pool and increased mTOR activity in Fmr1 knockout mice and reversal of phenotype with rapamycin. AB - While mutations in the fragile X mental retardation-1 (FMR1) gene are associated with varying reproductive outcomes in females, the effects of a complete lack of FMR1 expression are not known. Here, we studied the ovarian and reproductive phenotypes in an Fmr1 knockout (KO) mouse model and the role of mammalian target of rapamycin (mTOR) signaling. Breeding, histologic and mTOR signaling data were obtained at multiple time points in KO and wild type (WT) mice fed a control or rapamycin (mTOR inhibitor) diet. KO mice showed an earlier decline in ovarian reserve than WT mice with an increased proportion of activated follicles. mTOR and phosphorylated S6 kinase (p-S6K) levels, a measure of downstream mTOR signaling, were elevated in the KO ovaries. Rapamycin blocked these effects in KO mice, and increased the primordial follicle pool and age of last litter in WT mice. Our data demonstrates an early decline in reproductive capacity in Fmr1 KO mice and proposes that premature recruitment of the primordial pool via altered mTOR signaling may be the mechanism. Reversal of phenotypes and protein levels in rapamycin-treated KO mice, as well as increased reproductive lifespan of rapamycin-fed WT mice, suggest the mTOR pathway as a potential therapeutic target. PMID- 29330422 TI - Seabirds fighting for land: phenotypic consequences of breeding area constraints at a small remote archipelago. AB - Identifying associations between phenotypes and environmental parameters is crucial for understanding how natural selection acts at the individual level. In this context, genetically isolated populations can be useful models for identifying the forces selecting fitness-related traits. Here, we use a comprehensive dataset on a genetically and ecologically isolated population of the strictly marine bird, the brown booby Sula leucogaster, at the tropical and remote Saint Peter and Saint Paul Archipelago, mid-Atlantic Ocean, in order to detect phenotypic adjustments from interindividual differences in diet, foraging behaviour, and nest quality. For this, we took biometrics of all individuals of the colony breeding in 2014 and 2015 and tested their associations with nest quality, diet parameters, and foraging behaviour. While body size was not related to the foraging parameters, the body size of the females (responsible for nest acquisition and defence) was significantly associated with the nest quality, as larger females occupied high-quality nests. Our findings suggest that the small breeding area, rather than prey availability, is a limiting factor, emphasizing the role of on-land features in shaping phenotypic characteristics and fitness in land-dependent marine vertebrates. PMID- 29330425 TI - Formation and dynamics of a solar eruptive flux tube. AB - Solar eruptions are well-known drivers of extreme space weather, which can greatly disturb the Earth's magnetosphere and ionosphere. The triggering process and initial dynamics of these eruptions are still an area of intense study. Here we perform a magnetohydrodynamic simulation taking into account the observed photospheric magnetic field to reveal the dynamics of a solar eruption in a real magnetic environment. In our simulation, we confirmed that tether-cutting reconnection occurring locally above the polarity inversion line creates a twisted flux tube, which is lifted into a toroidal unstable area where it loses equilibrium, destroying the force-free state, and driving the eruption. Consequently, a more highly twisted flux tube is built up during this initial phase, which can be further accelerated even when it returns to a stable area. We suggest that a nonlinear positive feedback process between the flux tube evolution and reconnection is the key to ensure this extra acceleration. PMID- 29330424 TI - Metagenomic and metabolomic analyses unveil dysbiosis of gut microbiota in chronic heart failure patients. AB - Previous studies suggested a possible gut microbiota dysbiosis in chronic heart failure (CHF). However, direct evidence was lacking. In this study, we investigated the composition and metabolic patterns of gut microbiota in CHF patients to provide direct evidence and comprehensive understanding of gut microbiota dysbiosis in CHF. We enrolled 53 CHF patients and 41 controls. Metagenomic analyses of faecal samples and metabolomic analyses of faecal and plasma samples were then performed. We found that the composition of gut microbiota in CHF was significantly different from controls. Faecalibacterium prausnitzii decrease and Ruminococcus gnavus increase were the essential characteristics in CHF patients' gut microbiota. We also observed an imbalance of gut microbes involved in the metabolism of protective metabolites such as butyrate and harmful metabolites such as trimethylamine N-oxide in CHF patients. Metabolic features of both faecal and plasma samples from CHF patients also significantly changed. Moreover, alterations in faecal and plasma metabolic patterns correlated with gut microbiota dysbiosis in CHF. Taken together, we found that CHF was associated with distinct gut microbiota dysbiosis and pinpointed the specific core bacteria imbalance in CHF, along with correlations between changes in certain metabolites and gut microbes. PMID- 29330423 TI - T cell immunity to Zika virus targets immunodominant epitopes that show cross reactivity with other Flaviviruses. AB - Zika virus (ZIKV) Infection has several outcomes from asymptomatic exposure to rash, conjunctivitis, Guillain-Barre syndrome or congenital Zika syndrome. Analysis of ZIKV immunity is confounded by the fact that several related Flaviviruses infect humans, including Dengue virus 1-4, West Nile virus and Yellow Fever virus. HLA class II restricted T cell cross-reactivity between ZIKV and other Flaviviruses infection(s) or vaccination may contribute to protection or to enhanced immunopathology. We mapped immunodominant, HLA class II restricted, CD4 epitopes from ZIKV Envelope (Env), and Non-structural (NS) NS1, NS3 and NS5 antigens in HLA class II transgenic mice. In several cases, ZIKV primed CD4 cells responded to homologous sequences from other viruses, including DENV1-4, WNV or YFV. However, cross-reactive responses could confer immune deviation - the response to the Env DENV4 p1 epitope in HLA-DR1 resulted in IL 17A immunity, often associated with exacerbated immunopathogenesis. This conservation of recognition across Flaviviruses, may encompass protective and/or pathogenic components and poses challenges to characterization of ZIKV protective immunity. PMID- 29330427 TI - Three-Dimensional Speckle Light Self-Healing-Based Imaging System. AB - Recently new methodologies for imaging have been achieved making use of multiple light scattering. Here we present the self-healing effect using a speckled light field. We present an experiment that constitutes a useful application for a three dimensional light sheet-based imaging system through an inhomogeneous medium. Each layer can be imaged independently of the others. The axial resolution basically depends on the coherence length, which can be sub-wavelength and controllable. This allows for a simple and direct technique for imaging through scattering layers with axial resolution improvement. Our results may find applications not only in bio-microscopy systems but also in data transmission. PMID- 29330426 TI - Glucose-independent segmental phase angles from multi-frequency bioimpedance analysis to discriminate diabetes mellitus. AB - We investigated segmental phase angles (PAs) in the four limbs using a multi frequency bioimpedance analysis (MF-BIA) technique for noninvasively diagnosing diabetes mellitus. We conducted a meal tolerance test (MTT) for 45 diabetic and 45 control subjects stratified by age, sex and body mass index (BMI). HbA1c and the waist-to-hip-circumference ratio (WHR) were measured before meal intake, and we measured the glucose levels and MF-BIA PAs 5 times for 2 hours after meal intake. We employed a t-test to examine the statistical significance and the area under the curve (AUC) of the receiver operating characteristics (ROC) to test the classification accuracy using segmental PAs at 5, 50, and 250 kHz. Segmental PAs were independent of the HbA1c or glucose levels, or their changes caused by the MTT. However, the segmental PAs were good indicators for noninvasively screening diabetes In particular, leg PAs in females and arm PAs in males showed best classification accuracy (AUC = 0.827 for males, AUC = 0.845 for females). Lastly, we introduced the PA at maximum reactance (PAmax), which is independent of measurement frequencies and can be obtained from any MF-BIA device using a Cole Cole model, thus showing potential as a useful biomarker for diabetes. PMID- 29330428 TI - Structural insights into two distinct binding modules for Lys63-linked polyubiquitin chains in RNF168. AB - The E3 ubiquitin (Ub) ligase RNF168 plays a critical role in the initiation of the DNA damage response to double-strand breaks (DSBs). The recruitment of RNF168 by ubiquitylated targets involves two distinct regions, Ub-dependent DSB recruitment module (UDM) 1 and UDM2. Here we report the crystal structures of the complex between UDM1 and Lys63-linked diUb (K63-Ub2) and that between the C terminally truncated UDM2 (UDM2DeltaC) and K63-Ub2. In both structures, UDM1 and UDM2DeltaC fold as a single alpha-helix. Their simultaneous bindings to the distal and proximal Ub moieties provide specificity for Lys63-linked Ub chains. Structural and biochemical analyses of UDM1 elucidate an Ub-binding mechanism between UDM1 and polyubiquitylated targets. Mutations of Ub-interacting residues in UDM2 prevent the accumulation of RNF168 to DSB sites in U2OS cells, whereas those in UDM1 have little effect, suggesting that the interaction of UDM2 with ubiquitylated and polyubiquitylated targets mainly contributes to the RNF168 recruitment. PMID- 29330429 TI - Tissue and serum microRNA profile of oral squamous cell carcinoma patients. AB - Head and neck cancer is characterized by malignant tumors arising from the epithelium covering the upper aerodigestive tract, and the majority of these epithelial malignancies are squamous cell carcinomas (SCCs) of the oral cavity (OSCCs). The aim of the current work was to identify miRNAs regulated in OSCC cancerous tissue when compared to a healthy adjacent tissue and to verify the presence of the same miRNAs in the circulation of these patients. For that serum samples and biopsies of healthy and tumor tissues were collected from five patients diagnosed with OSCC of the oral cavity, RNA was extracted from these samples and microRNAs libraries were prepared and sequenced. A total 255 miRNAs were identified in tissue and 381 different miRNAs were identified in serum samples. When comparing the miRNA expression between tumor and healthy tissue we identified 48 miRNAs (25 down- and 23 up-regulated) that were differentially expressed (FDR < 0.05). From these 48 differentially expressed miRNAs in tissue, 30 miRNAs were also found in the serum of the same patients. hsa-miR-32-5p was up regulated in tumor compared to healthy tissue in our study, and was previously shown to be up-regulated in the serum of OSCC patients. Therefore, this suggests that miRNAs can be used as potential non-invasive biomarkers of OSCC. PMID- 29330430 TI - Carbon-doped SnS2 nanostructure as a high-efficiency solar fuel catalyst under visible light. AB - Photocatalytic formation of hydrocarbons using solar energy via artificial photosynthesis is a highly desirable renewable-energy source for replacing conventional fossil fuels. Using an L-cysteine-based hydrothermal process, here we synthesize a carbon-doped SnS2 (SnS2-C) metal dichalcogenide nanostructure, which exhibits a highly active and selective photocatalytic conversion of CO2 to hydrocarbons under visible-light. The interstitial carbon doping induced microstrain in the SnS2 lattice, resulting in different photophysical properties as compared with undoped SnS2. This SnS2-C photocatalyst significantly enhances the CO2 reduction activity under visible light, attaining a photochemical quantum efficiency of above 0.7%. The SnS2-C photocatalyst represents an important contribution towards high quantum efficiency artificial photosynthesis based on gas phase photocatalytic CO2 reduction under visible light, where the in situ carbon-doped SnS2 nanostructure improves the stability and the light harvesting and charge separation efficiency, and significantly enhances the photocatalytic activity. PMID- 29330431 TI - Gyrotropic Zener tunneling and nonlinear IV curves in the zero-energy Landau level of graphene in a strong magnetic field. AB - We have investigated tunneling current through a suspended graphene Corbino disk in high magnetic fields at the Dirac point, i.e. at filling factor nu = 0. At the onset of the dielectric breakdown the current through the disk grows exponentially before ohmic behaviour, but in a manner distinct from thermal activation. We find that Zener tunneling between Landau sublevels dominates, facilitated by tilting of the source-drain bias potential. According to our analytic modelling, the Zener tunneling is strongly affected by the gyrotropic force (Lorentz force) due to the high magnetic field. PMID- 29330432 TI - Developing genome-wide SNPs and constructing an ultrahigh-density linkage map in oil palm. AB - Oil palm (Elaeis guineensis Jacq.) is the leading oil-producing crops and the most important edible oil resource worldwide. DNA markers and genetic linkage maps are essential resources for marker-assisted selection to accelerate genetic improvement. We conducted RAD-seq on an Illumina NextSeq500 to discover genome wide SNPs, and used the SNPs to construct a linkage map for an oil palm (Tenera) population derived from a cross between a Deli Dura and an AVROS Pisifera. The RAD-seq produced 1,076 million single-end reads across the breeding population containing 155 trees. Mining this dataset detected 510,251 loci. After filtering out loci with low accuracy and more than 20% missing data, 11,394 SNPs were retained. Using these SNPs, in combination with 188 anchor SNPs and 123 microsatellites, we constructed a linkage map containing 10,023 markers covering 16 chromosomes. The map length is 2,938.2 cM with an average marker space of 0.29 cM. The large number of SNPs will supply ample choices of DNA markers in analysing the genetic diversity, population structure and evolution of oil palm. This high-density linkage map will contribute to mapping quantitative trait loci (QTL) for important traits, thus accelerating oil palm genetic improvement. PMID- 29330434 TI - Targeting melanoma stem cells with the Vitamin E derivative delta-tocotrienol. AB - The prognosis of metastatic melanoma is very poor, due to the development of drug resistance. Cancer stem cells (CSCs) may play a crucial role in this mechanism, contributing to disease relapse. We first characterized CSCs in melanoma cell lines. We observed that A375 (but not BLM) cells are able to form melanospheres and show CSCs traits: expression of the pluripotency markers SOX2 and KLF4, higher invasiveness and tumor formation capability in vivo with respect to parental adherent cells. We also showed that a subpopulation of autofluorescent cells expressing the ABCG2 stem cell marker is present in the A375 spheroid culture. Based on these data, we investigated whether delta-TT might target melanoma CSCs. We demonstrated that melanoma cells escaping the antitumor activity of delta-TT are completely devoid of the ability to form melanospheres. In contrast, cells that escaped vemurafenib treatment show a higher ability to form melanospheres than control cells. delta-TT also induced disaggregation of A375 melanospheres and reduced the spheroidogenic ability of sphere-derived cells, reducing the expression of the ABCG2 marker. These data demonstrate that delta-TT exerts its antitumor activity by targeting the CSC subpopulation of A375 melanoma cells and might represent a novel chemopreventive/therapeutic strategy against melanoma. PMID- 29330436 TI - Blood transcriptomics of captive forest musk deer (Moschus berezovskii) and possible associations with the immune response to abscesses. AB - Forest musk deer (Moschus berezovskii; FMD) are both economically valuable and highly endangered. A problem for FMD captive breeding programs has been the susceptibility of FMD to abscesses. To investigate the mechanisms of abscess development in FMD, the blood transcriptomes of three purulent and three healthy individuals were generated. A total of ~39.68 Gb bases were generated using Illumina HiSeq 4000 sequencing technology and 77,752 unigenes were identified after assembling. All the unigenes were annotated, with 63,531 (81.71%) mapping to at least one database. Based on these functional annotations, 45,798 coding sequences (CDS) were detected, along with 12,697 simple sequence repeats (SSRs) and 65,536 single nucleotide polymorphisms (SNPs). A total of 113 unigenes were found to be differentially expressed between healthy and purulent individuals. Functional annotation indicated that most of these differentially expressed genes were involved in the regulation of immune system processes, particularly those associated with parasitic and bacterial infection pathways. PMID- 29330433 TI - Effect of atorvastatin on the gut microbiota of high fat diet-induced hypercholesterolemic rats. AB - The aim of the present study was to investigate alterations in gut microbiota associated with hypercholesterolemia and treatment with atorvastatin, a commonly prescribed cholesterol-lowering drug. In this study, seven experimental groups of rats were developed based on diets [high-fat diet (HFD) and normal chow diet (NCD)] and various doses of atorvastatin in HFD and NCD groups. 16S rRNA amplicon sequencing was used to analyze the gut microbiota. Atorvastatin significantly reduced the cholesterol level in treated rats. Bacterial diversity was decreased in the drug-treated NCD group compared to the NCD control, but atorvastatin treated HFD groups showed a relative increase in biodiversity compared to HFD control group. Atorvastatin promoted the relative abundance of Proteobacteria and reduced the abundance of Firmicutes in drug-treated HFD groups. Among the dominant taxa in the drug-treated HFD groups, Oscillospira, Parabacteroides, Ruminococcus, unclassified CF231, YRC22 (Paraprevotellaceae), and SMB53 (Clostridiaceae) showed reversion in population distribution toward NCD group relative to HFD group. Drug-treated HFD and NCD groups both showed an increased relative abundance of Helicobacter. Overall, bacterial community composition was altered, and diversity of gut microbiota increased with atorvastatin treatment in HFD group. Reversion in relative abundance of specific dominant taxa was observed with drug treatment to HFD rats. PMID- 29330435 TI - Beta-catenin cleavage enhances transcriptional activation. AB - Nuclear activation of Wnt/beta-catenin signaling is required for cell proliferation in inflammation and cancer. Studies from our group indicate that beta-catenin activation in colitis and colorectal cancer (CRC) correlates with increased nuclear levels of beta-catenin phosphorylated at serine 552 (pbeta Cat552). Biochemical analysis of nuclear extracts from cancer biopsies revealed the existence of low molecular weight (LMW) pbeta-Cat552, increased to the exclusion of full size (FS) forms of beta-catenin. LMW beta-catenin lacks both termini, leaving residues in the armadillo repeat intact. Further experiments showed that TCF4 predominantly binds LMW pbeta-Cat552 in the nucleus of inflamed and cancerous cells. Nuclear chromatin bound localization of LMW pbeta-Cat552 was blocked in cells by inhibition of proteasomal chymotrypsin-like activity but not by other protease inhibitors. K48 polyubiquitinated FS and LMW beta-catenin were increased by treatment with bortezomib. Overexpressed in vitro double truncated beta-catenin increased transcriptional activity, cell proliferation and growth of tumor xenografts compared to FS beta-catenin. Serine 552-> alanin substitution abrogated K48 polyubiquitination, beta-catenin nuclear translocation and tumor xenograft growth. These data suggest that a novel proteasome-dependent posttranslational modification of beta-catenin enhances transcriptional activation. Discovery of this pathway may be helpful in the development of diagnostic and therapeutic tools in colitis and cancer. PMID- 29330437 TI - A Computational Assay of Estrogen Receptor alpha Antagonists Reveals the Key Common Structural Traits of Drugs Effectively Fighting Refractory Breast Cancers. AB - Somatic mutations of the Estrogen Receptor alpha (ERalpha) occur with an up to 40% incidence in ER sensitive breast cancer (BC) patients undergoing prolonged endocrine treatments. These polymorphisms are implicated in acquired resistance, disease relapse, and increased mortality rates, hence representing a current major clinical challenge. Here, multi-microseconds (12.5 us) molecular dynamics simulations revealed that recurrent ERalpha polymorphisms (i. e. L536Q, Y537S, Y537N, D538G) (mERalpha) are constitutively active in their apo form and that they prompt the selection of an agonist (active)-like conformation even upon antagonists binding. Interestingly, our simulations rationalize, for the first time, the efficacy profile of (pre)clinically used Selective Estrogen Receptor Modulators/Downregulators (SERMs/SERDs) against these variants, enlightening, at atomistic level of detail, the key common structural traits needed by drugs able to effectively fight refractory BC types. This knowledge represents a key advancement for mechanism-based therapeutics targeting resistant ERalpha isoforms, potentially allowing the community to move a step closer to 'precision medicine' calibrated on patients' genetic profiles and disease progression. PMID- 29330438 TI - Improved Resolution Optical Time Stretch Imaging Based on High Efficiency In Fiber Diffraction. AB - Most overlooked challenges in ultrafast optical time stretch imaging (OTSI) are sacrificed spatial resolution and higher optical loss. These challenges are originated from optical diffraction devices used in OTSI, which encode image into spectra of ultrashort optical pulses. Conventional free-space diffraction gratings, as widely used in existing OTSI systems, suffer from several inherent drawbacks: limited diffraction efficiency in a non-Littrow configuration due to inherent zeroth-order reflection, high coupling loss between free-space gratings and optical fibers, bulky footprint, and more importantly, sacrificed imaging resolution due to non-full-aperture illumination for individual wavelengths. Here we report resolution-improved and diffraction-efficient OTSI using in-fiber diffraction for the first time to our knowledge. The key to overcome the existing challenges is a 45 degrees tilted fiber grating (TFG), which serves as a compact in-fiber diffraction device offering improved diffraction efficiency (up to 97%), inherent compatibility with optical fibers, and improved imaging resolution owning to almost full-aperture illumination for all illumination wavelengths. 50 million frames per second imaging of fast moving object at 46 m/s with improved imaging resolution has been demonstrated. This conceptually new in-fiber diffraction design opens the way towards cost-effective, compact and high resolution OTSI systems for image-based high-throughput detection and measurement. PMID- 29330440 TI - Evidence of s-wave superconductivity in the noncentrosymmetric La7Ir3. AB - Superconductivity in noncentrosymmetric compounds has attracted sustained interest in the last decades. Here we present a detailed study on the transport, thermodynamic properties and the band structure of the noncentrosymmetric superconductor La 7 Ir 3 (T c ~ 2.3 K) that was recently proposed to break the time-reversal symmetry. It is found that La7Ir3 displays a moderately large electronic heat capacity (Sommerfeld coefficient gamma n ~ 53.1 mJ/mol K2) and a significantly enhanced Kadowaki-Woods ratio (KWR ~32 MUOmega cm mol2 K2 J-2) that is greater than the typical value (~10 MUOmega cm mol2 K2 J-2) for strongly correlated electron systems. The upper critical field Hc2 was seen to be nicely described by the single-band Werthamer-Helfand-Hohenberg model down to very low temperatures. The hydrostatic pressure effects on the superconductivity were also investigated. The heat capacity below T c reveals a dominant s-wave gap with the magnitude close to the BCS value. The first-principles calculations yield the electron-phonon coupling constant lambda = 0.81 and the logarithmically averaged frequency omega ln = 78.5 K, resulting in a theoretical T c = 2.5 K, close to the experimental value. Our calculations suggest that the enhanced electronic heat capacity is more likely due to electron-phonon coupling, rather than the electron-electron correlation effects. Collectively, these results place severe constraints on any theory of exotic superconductivity in this system. PMID- 29330439 TI - Induction of protein citrullination and auto-antibodies production in murine exposed to nickel nanomaterials. AB - Citrullination, or the post-translational deimination of polypeptide-bound arginine, is involved in several pathological processes in the body, including autoimmunity and tumorigenesis. Recent studies have shown that nanomaterials can trigger protein citrullination, which might constitute a common pathogenic link to disease development. Here we demonstrated auto-antibody production in serum of nanomaterials-treated mice. Citrullination-associated phenomena and PAD levels were found to be elevated in nanomaterials -treated cell lines as well as in the spleen, kidneys and lymph nodes of mice, suggesting a systemic response to nanomaterials injection, and validated in human pleural and pericardial malignant mesothelioma (MM) samples. The observed systemic responses in mice exposed to nanomaterials support the evidence linking exposure to environmental factors with the development of autoimmunity responses and reinforces the need for comprehensive safety screening of nanomaterials. Furthermore, these nanomaterials induce pathological processes that mimic those observed in Pleural MM, and therefore require further investigations into their carcinogenicity. PMID- 29330441 TI - Pathway design using de novo steps through uncharted biochemical spaces. AB - Existing retrosynthesis tools generally traverse production routes from a source to a sink metabolite using known enzymes or de novo steps. Generally, important considerations such as blending known transformations with putative steps, complexity of pathway topology, mass conservation, cofactor balance, thermodynamic feasibility, microbial chassis selection, and cost are largely dealt with in a posteriori fashion. The computational procedure we present here designs bioconversion routes while simultaneously considering any combination of the aforementioned design criteria. First, we track and codify as rules all reaction centers using a prime factorization-based encoding technique (rePrime). Reaction rules and known biotransformations are then simultaneously used by the pathway design algorithm (novoStoic) to trace both metabolites and molecular moieties through balanced bio-conversion strategies. We demonstrate the use of novoStoic in bypassing steps in existing pathways through putative transformations, assembling complex pathways blending both known and putative steps toward pharmaceuticals, and postulating ways to biodegrade xenobiotics. PMID- 29330442 TI - Competition among the attentional networks due to resource reduction in Tibetan indigenous residents: evidence from event-related potentials. AB - This study used the attention network test (ANT) to evaluate the alerting, orienting, and executive network efficiencies of attention related to indigenous residents who were born and raised until early adulthood in different high altitude areas (2900-m, 3700-m, and 4200-m) at the same location (3700-m) where these residents had been living for approximately 2 years in Tibet. We further applied the event-related potential (ERP) method to identify the underlying neurophysiological basis. Based on the ANT, we found that, in the 4200-m residents, executive function was increased but the orienting function was decreased, and the executive and orienting network scores were oppositely correlated. The behavioral findings were supported by the ERP data, showing that the P3 amplitude changes indicated that the executive function was over-active under conflict conditions and that the N1 amplitude change indicated a decreased orienting function in the 4200-m residents. In addition, the changed P3 amplitudes were significantly correlated with intelligence performance across the residents only in the 4200-m group. The present study provided evidence for competition among the attentional networks due to high-altitude exposure in indigenous residents, and showed the existence of a threshold of the influence of high altitudes on attentional function in the brain. PMID- 29330443 TI - An insight into intestinal mucosal microbiota disruption after stroke. AB - Recent work from our laboratory has provided evidence that indicates selective bacterial translocation from the host gut microbiota to peripheral tissues (i.e. lung) plays a key role in the development of post-stroke infections. Despite this, it is currently unknown whether mucosal bacteria that live on and interact closely with the host intestinal epithelium contribute in regulating bacterial translocation after stroke. Here, we found that the microbial communities within the mucosa of gastrointestinal tract (GIT) were significantly different between sham-operated and post-stroke mice at 24 h following surgery. The differences in microbiota composition were substantial in all sections of the GIT and were significant, even at the phylum level. The main characteristics of the stroke induced shift in mucosal microbiota composition were an increased abundance of Akkermansia muciniphila and an excessive abundance of clostridial species. Furthermore, we analysed the predicted functional potential of the altered mucosal microbiota induced by stroke using PICRUSt and revealed significant increases in functions associated with infectious diseases, membrane transport and xenobiotic degradation. Our findings revealed stroke induces far-reaching and robust changes to the intestinal mucosal microbiota. A better understanding of the precise molecular events leading up to stroke-induced mucosal microbiota changes may represent novel therapy targets to improve patient outcomes. PMID- 29330444 TI - Lidocaine enhances the effects of chemotherapeutic drugs against bladder cancer. AB - This study aimed to investigate whether lidocaine, alone or in combination with other chemotherapeutic agents, inhibits the growth of human bladder cancer cells in vitro and orthotopically transplanted bladder tumors in vivo. The effects of lidocaine (1.25, 2.5 or 5 mg/mL), mitomycin C (MMC, 0.66 mg/mL), pirarubicin (0.75 mg/mL) and Su Fu'ning lotion (SFN, 0.0625 mg/mL) on the proliferation of human bladder cancer (BIU-87) cells were studied using the MTT assay. A Balb/c nude mouse model of bladder cancer was developed by orthotopic transplantation of BIU-87 cells, and the effects of intravesical instillation of lidocaine and MMC on bladder wet weight (a measure of tumor size) and survival (over 60 days) were studied. Lidocaine inhibited proliferation of BIU-87 cells in a concentration dependent manner and (when given in combination) enhanced the actions of each of the other antiproliferative agents. In tumor-bearing mice, MMC alone had no effect on mean survival or bladder wet weight. However, the combination of 0.66 mg/mL MMC and 5 mg/mL lidocaine prolonged survival (from 34.62 +/- 6.49 to 49.30 +/- 6.72 days; n = 8, P < 0.05) and reduced bladder wet weight (from 68.94 +/- 53.61 to 20.26 +/- 6.07; n = 8, P < 0.05). Intravesical instillation of lidocaine combined with other chemotherapeutic agents potentially could be an effective therapy for bladder cancer. PMID- 29330445 TI - A novel approach for correction of crosstalk effects in pathway analysis and its application in osteoporosis research. AB - Osteoporosis is a prevalent bone metabolic disease and peripheral blood monocytes represent a major systemic cell type for bone metabolism. To identify the key dysfunctional pathways in osteoporosis, we performed pathway analyses on microarray data of monocytes from subjects with extremely high/low hip bone mineral density. We first performed a traditional pathway analysis for which different pathways were treated as independent. However, genes overlap among pathways will lead to "crosstalk" phenomenon, which may lead to false positive/negative results. Therefore, we applied correction techniques including a novel approach that considers the correlation among genes to adjust the crosstalk effects in the analysis. In traditional analysis, 10 pathways were found to be significantly associated with BMD variation. After correction for crosstalk effects, three of them remained significant. Moreover, the MAPK signaling pathway, which has been shown to be important for osteoclastogenesis, became significant only after the correction for crosstalk effects. We also identified a new module mainly consisting of genes present in mitochondria to be significant. In summary, we describe a novel method to correct the crosstalk effect in pathway analysis and found five key independent pathways involved in BMD regulation, which may provide a better understanding of biological functional networks in osteoporosis. PMID- 29330446 TI - Effect of puerarin in promoting fatty acid oxidation by increasing mitochondrial oxidative capacity and biogenesis in skeletal muscle in diabetic rats. AB - BACKGROUND: Type 2 diabetes is characterized by dyslipidemia and the accumulation of lipids in non-adipose tissue, including skeletal muscle. Puerarin, which is a natural isoflavonoid isolated from the root of the plant Pueraria lobata, has been shown to have antidiabetic activity. However, the lipid-reducing effect of puerarin, in particular in skeletal muscle, has not yet been addressed. METHODS: We examined the effect of puerarin on mitochondrial function and the oxidation of fatty acids in the skeletal muscle of high-fat diet/streptozotocin-induced diabetic rats. RESULTS: Puerarin effectively alleviated dyslipidemia and decreased the accumulation of intramyocellular lipids by upregulating the expression of a range of genes involved in mitochondrial biogenesis, oxidative phosphorylation, the detoxification of reactive oxygen species, and the oxidation of fatty acids in the muscle of diabetic rats. Also, the effect of puerarin on mitochondrial biogenesis might partially involve the function of the MU-opioid receptor. In addition, puerarin decreased the trafficking of fatty acid translocase/CD36 to the plasma membrane to reduce the uptake of fatty acids by myocytes. In vitro studies confirmed that puerarin acted directly on muscle cells to promote the oxidation of fatty acids in insulin-resistant myotubes treated with palmitate. CONCLUSIONS: Puerarin improved the performance of mitochondria in muscle and promoted the oxidation of fatty acids, which thus prevented the accumulation of intramyocellular lipids in diabetic rats. Our findings will be beneficial both for elucidating the mechanism of the antidiabetic activity of puerarin and for promoting the therapeutic potential of puerarin in the treatment of diabetes. PMID- 29330447 TI - Human Placental-Derived Adherent Stromal Cells Co-Induced with TNF-alpha and IFN gamma Inhibit Triple-Negative Breast Cancer in Nude Mouse Xenograft Models. AB - Culturing 3D-expanded human placental-derived adherent stromal cells (ASCs) in the presence of tumor necrosis factor-alpha (TNF-alpha) and interferon-gamma (IFN gamma) transiently upregulated the secretion of numerous anti-proliferative, anti angiogenic and pro-inflammatory cytokines. In a 3D-spheroid screening assay, conditioned medium from these induced-ASCs inhibited proliferation of cancer cell lines, including triple-negative breast cancer (TNBC) lines. In vitro co-culture studies of induced-ASCs with MDA-MB-231 human breast carcinoma cells, a model representing TNBC, supports a mechanism involving immunomodulation and angiogenesis inhibition. In vivo studies in nude mice showed that intramuscular administration of induced-ASCs halted MDA-MB-231 cell proliferation, and inhibited tumor progression and vascularization. Thirty percent of treated mice experienced complete tumor remission. Murine serum concentrations of the tumor supporting cytokines Interleukin-6 (IL-6), Vascular endothelial growth factor (VEGF) and Granulocyte-colony stimulating factor (G-CSF) were lowered to naive levels. A somatic mutation analysis identified numerous genes which could be screened in patients to increase a positive therapeutic outcome. Taken together, these results show that targeted changes in the secretion profile of ASCs may improve their therapeutic potential. PMID- 29330449 TI - Lithium chloride effectively kills the honey bee parasite Varroa destructor by a systemic mode of action. AB - Honey bees are increasingly important in the pollination of crops and wild plants. Recent reports of the weakening and periodical high losses of managed honey bee colonies have alarmed beekeeper, farmers and scientists. Infestations with the ectoparasitic mite Varroa destructor in combination with its associated viruses have been identified as a crucial driver of these health problems. Although yearly treatments are required to prevent collapses of honey bee colonies, the number of effective acaricides is small and no new active compounds have been registered in the past 25 years. RNAi-based methods were proposed recently as a promising new tool. However, the application of these methods according to published protocols has led to a surprising discovery. Here, we show that the lithium chloride that was used to precipitate RNA and other lithium compounds is highly effective at killing Varroa mites when fed to host bees at low millimolar concentrations. Experiments with caged bees and brood-free artificial swarms consisting of a queen and several thousand bees clearly demonstrate the potential of lithium as miticidal agent with good tolerability in worker bees providing a promising basis for the development of an effective and easy-to-apply control method for mite treatment. PMID- 29330452 TI - Assessment of the responses of soil pore properties to combined soil structure amendments using X-ray computed tomography. AB - Soil amendments, such as straw mulch, organic fertilizers and superabsorbent polymer (SAP), are extensively applied to improve soil structure and porosity, and we reported the functional consequences of the individual application of these amendments in our previous study. However, whether combined amendments are more effective than their individual applications for improving soil pore structure is unknown. Here, we conducted X-ray computed tomography (CT) scanning on undisturbed soil columns to investigate the efficiency of two-amendment application, including straw mulch and organic manure, SAP and organic manure, or SAP and straw mulch, for improving soil pore properties and pore distribution. The X-ray CT technique allows us to accurately determine the number, morphology, and location of macropores (>1 mm in diameter) and smaller pores (0.13-1.0 mm). Compared to the control treatment, which showed the lowest increase in soil porosity, all the combined treatments led to an increase in the numbers of both macropores and smaller soil pores, causing a significant improvement in soil structure and porosity. Among these treatments, the application of both straw mulch and organic manure was the most effective for improving soil porosity and soil physical structure. PMID- 29330450 TI - C-terminal short arginine/serine repeat sequence-dependent regulation of Y14 (RBM8A) localization. AB - Y14 (RBM8A) is an RNA recognition motif-containing protein that forms heterodimers with MAGOH and serves as a core factor of the RNA surveillance machinery for the exon junction complex (EJC). The role of the Y14 C-terminal serine/arginine (RS) repeat-containing region, which has been reported to undergo modifications such as phosphorylation and methylation, has not been sufficiently investigated. Thus, we aimed to explore the functional significance of the Y14 C terminal region. Deletion or dephosphorylation mimic mutants of the C-terminal region showed a shift in localization from the nucleoplasmic region; in addition, the C-terminal RS repeat-containing sequence itself exhibited the potential for nucleolar localization. Additionally, the regulation of Y14 localization by the C terminal region was further found to be exquisitely controlled by MAGOH binding. Cumulatively, our findings, which demonstrated that Y14 localization is regulated not only by the previously reported N-terminal localization signal but also by the C-terminal RS repeat-containing region through phosphorylation and MAGOH binding to Y14, provide new insights for the mechanism of localization of short RS repeat-containing proteins. PMID- 29330448 TI - Visual field loss and vision-related quality of life in the Italian Primary Open Angle Glaucoma Study. AB - The aim of this study was to examine the relationship between visual field (VF) loss, vision-related quality of life (QoL) and glaucoma-related symptoms in a large cohort of primary open angle glaucoma (POAG) patients. POAG patients with or without VF defects or "glaucoma suspect" patients were considered eligible. QoL was assessed using the validated versions of the 25-item National Eye Institute Visual Function Questionnaire (NEI-VFQ-25) and glaucoma-related symptoms were assessed using the Glaucoma Symptom Scale (GSS). Patients were classified as having VF damage in one eye (VFD-1), both eyes (VFD-2), or neither eye (VFD-0). 3227 patients were enrolled and 2940 were eligible for the analysis. 13.4% of patients were classified in the VFD-0, 23.7% in the VFD-1, and 62.9% in the VFD-2 group. GSS visual symptoms domain (Func-4) and GSS non-visual symptoms domain (Symp-6) scores were similar for the VFD-0 and VFD-1 groups (p = 0.133 and p = 0.834 for Func-4 and Symp-6, respectively). VFD-0 group had higher scores than VFD-2 both in Func-4 (p < 0.001) and Symp-6 domains (p = 0.035). Regarding the NEI-VFQ-25, our data demonstrated that bilateral VF defects are associated with vision-related QoL deterioration, irrespective of visual acuity. PMID- 29330451 TI - Tracheophyte genomes keep track of the deep evolution of the Caulimoviridae. AB - Endogenous viral elements (EVEs) are viral sequences that are integrated in the nuclear genomes of their hosts and are signatures of viral infections that may have occurred millions of years ago. The study of EVEs, coined paleovirology, provides important insights into virus evolution. The Caulimoviridae is the most common group of EVEs in plants, although their presence has often been overlooked in plant genome studies. We have refined methods for the identification of caulimovirid EVEs and interrogated the genomes of a broad diversity of plant taxa, from algae to advanced flowering plants. Evidence is provided that almost every vascular plant (tracheophyte), including the most primitive taxa (clubmosses, ferns and gymnosperms) contains caulimovirid EVEs, many of which represent previously unrecognized evolutionary branches. In angiosperms, EVEs from at least one and as many as five different caulimovirid genera were frequently detected, and florendoviruses were the most widely distributed, followed by petuviruses. From the analysis of the distribution of different caulimovirid genera within different plant species, we propose a working evolutionary scenario in which this family of viruses emerged at latest during Devonian era (approx. 320 million years ago) followed by vertical transmission and by several cross-division host swaps. PMID- 29330453 TI - Calcium sulfate induced versus PMMA-induced membrane in a critical-sized femoral defect in a rat model. AB - Aimed to investigate the characteristics of CS-induced membrane in comparison with the PMMA-induced membrane. Cellular components, histological changes, growth factor expressions of IL-6, VEGF, BMP-2, and TGF-beta1 in the two induced membranes were compared at 2, 4, 6 and 8 weeks, respectively. We also compared the histological changes at the bone defects between CS and PMMA groups. The structural characteristics of induced membrane were similar between CS and PMMA. Endochondral ossification took place in the CS-induced membrane at 8 week. Levels of VEGF, BMP-2 and TGF-beta1 in CS-induced membrane were insignificantly higher than those in PMMA-induced membrane at different time points. The expression of IL-6 was significantly higher in PMMA-induced membranes at 2nd week. In addition, osteogenic and neovascular activities of induced membranes increased with time and peaked at 6 weeks. CS promoted endochondral ossification at the broken ends of the bone defect than PMMA did. CS-induced membrane has a better capacity of generating VEGF, BMP-2 and TGF-beta1.osteogenic and neovascular activities achieve highest level at 6 week. CS may have the potential to replace PMMA as a novel spacer in Masquelet technique. PMID- 29330454 TI - Dynamic malaria hotspots in an open cohort in western Kenya. AB - Malaria hotspots, defined as areas where transmission intensity exceeds the average level, become more pronounced as transmission declines. Targeting hotspots may accelerate reductions in transmission and could be pivotal for malaria elimination. Determinants of hotspot location, particularly of their movement, are poorly understood. We used spatial statistical methods to identify foci of incidence of self-reported malaria in a large census population of 64,000 people, in 8,290 compounds over a 2.5-year study period. Regression models examine stability of hotspots and identify static and dynamic correlates with their location. Hotspot location changed over short time-periods, rarely recurring in the same area. Hotspots identified in spring versus fall season differed in their stability. Households located in a hotspot in the fall were more likely to be located in a hotspot the following fall (RR = 1.77, 95% CI: 1.66-1.89), but the opposite was true for compounds in spring hotspots (RR = 0.15, 95% CI: 0.08-0.28). Location within a hotspot was related to environmental and static household characteristics such as distance to roads or rivers. Human migration into a household was correlated with risk of hotspot membership, but the direction of the association differed based on the origin of the migration event. PMID- 29330455 TI - Towards Electrotuneable Nanoplasmonic Fabry-Perot Interferometer. AB - Directed voltage-controlled assembly and disassembly of plasmonic nanoparticles (NPs) at electrified solid-electrolyte interfaces (SEI) offer novel opportunities for the creation of tuneable optical devices. We apply this concept to propose a fast electrotuneable, NP-based Fabry-Perot (FP) interferometer, comprising two parallel transparent electrodes in aqueous electrolyte, which form the polarizable SEI for directed assembly-disassembly of negatively charged NPs. An FP cavity between two reflective NP-monolayers assembled at such interfaces can be formed or deconstructed under positive or negative polarization of the electrodes, respectively. The inter-NP spacing may be tuned via applied potential. Since the intensity, wavelength, and linewidth of the reflectivity peak depend on the NP packing density, the transmission spectrum of the system can thus be varied. A detailed theoretical model of the system's optical response is presented, which shows excellent agreement with full-wave simulations. The tuning of the peak transmission wavelength and linewidth is investigated in detail. Design guidelines for such NP-based FP systems are established, where transmission characteristics can be electrotuned in-situ, without mechanically altering the cavity length. PMID- 29330456 TI - 20-HETE promotes glucose-stimulated insulin secretion in an autocrine manner through FFAR1. AB - The long-chain fatty acid receptor FFAR1 is highly expressed in pancreatic beta cells. Synthetic FFAR1 agonists can be used as antidiabetic drugs to promote glucose-stimulated insulin secretion (GSIS). However, the physiological role of FFAR1 in beta-cells remains poorly understood. Here we show that 20-HETE activates FFAR1 and promotes GSIS via FFAR1 with higher potency and efficacy than dietary fatty acids such as palmitic, linoleic, and alpha-linolenic acid. Murine and human beta-cells produce 20-HETE, and the omega-hydroxylase-mediated formation and release of 20-HETE is strongly stimulated by glucose. Pharmacological inhibition of 20-HETE formation and blockade of FFAR1 in islets inhibits GSIS. In islets from type-2 diabetic humans and mice, glucose-stimulated 20-HETE formation and 20-HETE-dependent stimulation of GSIS are strongly reduced. We show that 20-HETE is an FFAR1 agonist, which functions as an autocrine positive feed-forward regulator of GSIS, and that a reduced glucose-induced 20 HETE formation contributes to inefficient GSIS in type-2 diabetes. PMID- 29330457 TI - Spatially selective responses to Kanizsa and occlusion stimuli in human visual cortex. AB - Early visual cortex responds to illusory contours in which abutting lines or collinear edges imply the presence of an occluding surface, as well as to occluded parts of an object. Here we used functional magnetic resonance imaging (fMRI) and population receptive field (pRF) analysis to map retinotopic responses in early visual cortex using bar stimuli defined by illusory contours, occluded parts of a bar, or subtle luminance contrast. All conditions produced retinotopic responses in early visual field maps even though signal-to-noise ratios were very low. We found that signal-to-noise ratios and coherence with independent high contrast mapping data increased from V1 to V2 to V3. Moreover, we found no differences of signal-to-noise ratios or pRF sizes between the low-contrast luminance and illusion conditions. We propose that all three conditions mapped spatial attention to the bar location rather than activations specifically related to illusory contours or occlusion. PMID- 29330458 TI - Architecture of a mammalian glomerular domain revealed by novel volume electroporation using nanoengineered microelectrodes. AB - Dense microcircuit reconstruction techniques have begun to provide ultrafine insight into the architecture of small-scale networks. However, identifying the totality of cells belonging to such neuronal modules, the "inputs" and "outputs," remains a major challenge. Here, we present the development of nanoengineered electroporation microelectrodes (NEMs) for comprehensive manipulation of a substantial volume of neuronal tissue. Combining finite element modeling and focused ion beam milling, NEMs permit substantially higher stimulation intensities compared to conventional glass capillaries, allowing for larger volumes configurable to the geometry of the target circuit. We apply NEMs to achieve near-complete labeling of the neuronal network associated with a genetically identified olfactory glomerulus. This allows us to detect sparse higher-order features of the wiring architecture that are inaccessible to statistical labeling approaches. Thus, NEM labeling provides crucial complementary information to dense circuit reconstruction techniques. Relying solely on targeting an electrode to the region of interest and passive biophysical properties largely common across cell types, this can easily be employed anywhere in the CNS. PMID- 29330459 TI - A Novel Ultra-Stable, Monomeric Green Fluorescent Protein For Direct Volumetric Imaging of Whole Organs Using CLARITY. AB - Recent advances in thick tissue clearing are enabling high resolution, volumetric fluorescence imaging of complex cellular networks. Fluorescent proteins (FPs) such as GFP, however, can be inactivated by the denaturing chemicals used to remove lipids in some tissue clearing methods. Here, we solved the crystal structure of a recently engineered ultra-stable GFP (usGFP) and propose that the two stabilising mutations, Q69L and N164Y, act to improve hydrophobic packing in the core of the protein and facilitate hydrogen bonding networks at the surface, respectively. usGFP was found to dimerise strongly, which is not desirable for some applications. A point mutation at the dimer interface, F223D, generated monomeric usGFP (muGFP). Neurons in whole mouse brains were virally transduced with either EGFP or muGFP and subjected to Clear Lipid-exchanged Acrylamide hybridized Rigid Imaging/Immunostaining/In situ hybridization-compatible Tissue hYdrogel (CLARITY) clearing. muGFP fluorescence was retained after CLARITY whereas EGFP fluorescence was highly attenuated, thus demonstrating muGFP is a novel FP suitable for applications where high fluorescence stability and minimal self-association are required. PMID- 29330461 TI - Comparing olive oil and C4-dietary oil, a prodrug for the GPR119 agonist, 2 oleoyl glycerol, less energy intake of the latter is needed to stimulate incretin hormone secretion in overweight subjects with type 2 diabetes. AB - BACKGROUND/OBJECTIVE: After digestion, dietary triacylglycerol stimulates incretin release in humans, mainly through generation of 2-monoacylglycerol, an agonist for the intestinal G protein-coupled receptor 119 (GPR119). Enhanced incretin release may have beneficial metabolic effects. However, dietary fat may promote weight gain and should therefore be restricted in obesity. We designed C4 dietary oil (1,3-di-butyryl-2-oleoyl glycerol) as a 2-oleoyl glycerol (2-OG) generating fat type, which would stimulate incretin release to the same extent while providing less calories than equimolar amounts of common triglycerides, e.g., olive oil. SUBJECTS AND METHODS: We studied the effect over 180 min of (a) 19 g olive oil plus 200 g carrot, (b) 10.7 g C4 dietary oil plus 200 g carrot and (c) 200 g carrot, respectively, on plasma responses of gut and pancreatic hormones in 13 overweight patients with type 2 diabetes (T2D). Theoretically, both oil meals result in formation of 7.7 g 2-OG during digestion. RESULTS: Both olive oil and C4-dietary oil resulted in greater postprandial (P <= 0.01) glucagon-like peptide 1 (GLP-1) and glucose-dependent insulinotropic polypeptide (GIP) responses (incremental area under curve (iAUC)): iAUCGLP-1: 645 +/- 194 and 702 +/- 97 pM * min; iAUCGIP: 4,338 +/- 764 and 2,894 +/- 601 pM * min) compared to the carrot meal (iAUCGLP-1: 7 +/- 103 pM * min; iAUCGIP: 266 +/- 234 pM * min). iAUC for GLP-1 and GIP were similar for C4-dietary oil and olive oil, although olive oil resulted in a higher peak value for GIP than C4-dietary oil. CONCLUSION: C4-dietary oil enhanced secretion of GLP-1 and GIP to almost the same extent as olive oil, in spite of liberation of both 2-OG and oleic acid, which also may stimulate incretin secretion, from olive oil. Thus, C4-dietary oil is more effective as incretin releaser than olive oil per unit of energy and may be useful for dietary intervention. PMID- 29330460 TI - Enhanced skeletal muscle ribosome biogenesis, yet attenuated mTORC1 and ribosome biogenesis-related signalling, following short-term concurrent versus single-mode resistance training. AB - Combining endurance training with resistance training (RT) may attenuate skeletal muscle hypertrophic adaptation versus RT alone; however, the underlying mechanisms are unclear. We investigated changes in markers of ribosome biogenesis, a process linked with skeletal muscle hypertrophy, following concurrent training versus RT alone. Twenty-three males underwent eight weeks of RT, either performed alone (RT group, n = 8), or combined with either high intensity interval training (HIT+RT group, n = 8), or moderate-intensity continuous training (MICT+RT group, n = 7). Muscle samples (vastus lateralis) were obtained before training, and immediately before, 1 h and 3 h after the final training session. Training-induced changes in basal expression of the 45S ribosomal RNA (rRNA) precursor (45S pre-rRNA), and 5.8S and 28S mature rRNAs, were greater with concurrent training versus RT. However, during the final training session, RT further increased both mTORC1 (p70S6K1 and rps6 phosphorylation) and 45S pre-rRNA transcription-related signalling (TIF-1A and UBF phosphorylation) versus concurrent training. These data suggest that when performed in a training-accustomed state, RT induces further increases mTORC1 and ribosome biogenesis-related signalling in human skeletal muscle versus concurrent training; however, changes in ribosome biogenesis markers were more favourable following a period of short-term concurrent training versus RT performed alone. PMID- 29330462 TI - miR-143-3p inhibits the proliferation, migration and invasion in osteosarcoma by targeting FOSL2. AB - Osteosarcoma (OS) is the most common type of primary malignant bone tumor and mainly occurs in children and adolescent. Because of its early migration and invasion, OS has a poor prognosis. It has been reported that mircoRNAs (miRNAs) play a crucial role in the occurrence and development of multiple tumors. In this study, we identified the aberrant-expression of miR-143-3p in osteosarcoma and examined the role of miR-143-3p in OS development. Further, we searched the miR 143-3p target gene and verified its accuracy by luciferase experiments. Finally, we explored the relationship between miR-143-3p and FOS-Like antigen 2 (FOSL2). Our data indicated that miR-143-3p expression was substantially lower in OS tissues and cell-line compared with normal tissues, and was lower in patients with poor prognosis. In addition miR-143-3p inhibited OS cell proliferation and metastasis while promoting apoptosis. We next showed that FOSL2 was directly targeted by miR-143-3p and could reverse the inhibition caused by miR-143-3p. Finally, we found FOSL2 expression in OS cells was significantly higher compared with normal cells and negatively correlated with miR-143-3p. Thus, miR-143-3p directly and negatively targets FOSL2 to affect OS characteristics. This provides a new target for the treatment of OS and deserves further study. PMID- 29330463 TI - Effective photo-enhancement of cellular activity of fluorophore-octaarginine antisense PNA conjugates correlates with singlet oxygen formation, endosomal escape and chromophore lipophilicity. AB - Photochemical internalization (PCI) is a cellular drug delivery method based on the generation of light-induced reactive oxygen species (ROS) causing damage to the endosomal membrane and thereby resulting in drug release to the cytoplasm. In our study a series of antisense fluorophore octaarginine peptide nucleic acid (PNA) conjugates were investigated in terms of PCI assisted cellular activity. It is found that tetramethylrhodamine and Alexa Fluor 555 conjugated octaarginine PNA upon irradiation exhibit more than ten-fold increase in antisense activity in the HeLa pLuc705 luciferase splice correction assay. An analogous fluorescein conjugate did not show any significant enhancement due to photobleaching, and neither did an Alexa Fluor 488 conjugate. Using fluorescence microscopy a correlation between endosomal escape and antisense activity was demonstrated, and in parallel a correlation to localized formation of ROS assigned primarily to singlet oxygen was also observed. The results show that tetramethylrhodamine (and to lesser extent Alexa Fluor 555) conjugated octaarginine PNAs are as effectively delivered to the cytosol compartment by PCI as by chloroquine assisted delivery and also indicate that efficient photodynamic endosomal escape is strongly dependent on the quantum yield for photochemical singlet oxygen formation, photostability as well as the lipophilicity of the chromophore. PMID- 29330465 TI - Insulin Resistance is Associated with Cognitive Decline Among Older Koreans with Normal Baseline Cognitive Function: A Prospective Community-Based Cohort Study. AB - We evaluated whether metabolic factors were associated with cognitive decline, compared to baseline cognitive function, among geriatric population. The present study evaluated data from an ongoing prospective community-based Korean cohort study. Among 1,387 participants who were >65 years old, 422 participants were evaluated using the Korean mini-mental status examination (K-MMSE) at the baseline and follow-up examinations. The mean age at the baseline was 69.3 +/- 2.9 years, and 222 participants (52.6%) were men. The mean duration of education was 7.1 +/- 3.6 years. During a mean follow-up of 5.9 +/- 0.1 years, the K-MMSE score significantly decreased (-1.1 +/- 2.7 scores), although no significant change was observed in the homeostasis model assessment of insulin resistance (HOMA-IR) value. Participants with more decreased percent changes in K-MMSE scores had a shorter duration of education (p = 0.001), older age (p = 0.022), higher baseline K-MMSE score (p < 0.001), and increased insulin resistance (?HOMA IR, p = 0.002). The correlation between the percent changes in K-MMSE and ?HOMA IR values remained significant after multivariable adjustment (B = -0.201, p = 0.002). During a 6-year follow-up of older Koreans with normal baseline cognitive function, increased insulin resistance was significantly correlated with decreased cognitive function. PMID- 29330464 TI - Eltrombopag versus romiplostim in treatment of children with persistent or chronic immune thrombocytopenia: a systematic review incorporating an indirect comparison meta-analysis. AB - In absence of direct comparison, we conducted an indirect-comparison meta analysis to evaluate the efficacy and safety of thrombopoietin-receptor agonists(TPO-RAs) in treatment of pediatric persistent or chronic immune thrombocytopenia(ITP). PubMed, Embase, Cochrane Library, Clinical Trials.gov, China National Knowledge Infrastructure, and Chinese Biomedical Literature Database were searched from their earliest records to May 2017. Randomized controlled trials comparing the TPO-RAs with placebo in pediatric ITP were included. Outcomes included overall response rate(primary), durable response, overall or clinically significant bleeding, the proportion of patients receiving rescue medication, and safety. Five randomized placebo-controlled studies(N = 261) were analyzed. The overall response[Risk Ratio(RR) 0.57, 95% confidence interval(CI) 0.21-1.56], the incidence of adverse events (RR 0.96, 95%CI 0.66 1.39), durable response(RR 2.48, 95%CI 0.31-19.97), and the proportion of patients receiving rescue treatment(RR 0.73, 95%CI 0.20-2.73) were similar between eltrombopag and romiplostim group. Nevertheless, eltrombopag might have lower risk of overall bleeding(RR 0.43, 95%CI 0.23-0.80) and clinically significant bleeding(RR 0.33, 95%CI 0.12-0.89) than romiplostim. This meta analysis suggests that eltrombopag might be similar to romiplostim in efficacy and safety, but seems to reduce the risk of bleeding compared to romiplostim. Furthermore, cost of the treatment, comorbidity of patients and drug compliance should also be considered in clinical decision making. PMID- 29330466 TI - Target engagement imaging of PARP inhibitors in small-cell lung cancer. AB - Insufficient chemotherapy response and rapid disease progression remain concerns for small-cell lung cancer (SCLC). Oncologists rely on serial CT scanning to guide treatment decisions, but this cannot assess in vivo target engagement of therapeutic agents. Biomarker assessments in biopsy material do not assess contemporaneous target expression, intratumoral drug exposure, or drug-target engagement. Here, we report the use of PARP1/2-targeted imaging to measure target engagement of PARP inhibitors in vivo. Using a panel of clinical PARP inhibitors, we show that PARP imaging can quantify target engagement of chemically diverse small molecule inhibitors in vitro and in vivo. We measure PARP1/2 inhibition over time to calculate effective doses for individual drugs. Using patient derived xenografts, we demonstrate that different therapeutics achieve similar integrated inhibition efficiencies under different dosing regimens. This imaging approach to non-invasive, quantitative assessment of dynamic intratumoral target inhibition may improve patient care through real-time monitoring of drug delivery. PMID- 29330467 TI - Evidence for sparse synergies in grasping actions. AB - Converging evidence shows that hand-actions are controlled at the level of synergies and not single muscles. One intriguing aspect of synergy-based action representation is that it may be intrinsically sparse and the same synergies can be shared across several distinct types of hand-actions. Here, adopting a normative angle, we consider three hypotheses for hand-action optimal-control: sparse-combination hypothesis (SC) - sparsity in the mapping between synergies and actions - i.e., actions implemented using a sparse combination of synergies; sparse-elements hypothesis (SE) - sparsity in synergy representation - i.e., the mapping between degrees-of-freedom (DoF) and synergies is sparse; double-sparsity hypothesis (DS) - a novel view combining both SC and SE - i.e., both the mapping between DoF and synergies and between synergies and actions are sparse, each action implementing a sparse combination of synergies (as in SC), each using a limited set of DoFs (as in SE). We evaluate these hypotheses using hand kinematic data from six human subjects performing nine different types of reach-to-grasp actions. Our results support DS, suggesting that the best action representation is based on a relatively large set of synergies, each involving a reduced number of degrees-of-freedom, and that distinct sets of synergies may be involved in distinct tasks. PMID- 29330468 TI - Alteration in yield and oil quality traits of winter rapeseed by lodging at different planting density and nitrogen rates. AB - Lodging is a factor that negatively affects yield, seed quality, and harvest ability in winter rapeseed (Brassica napus L.). In this study, we quantified the lodging-induced yield losses, changes in fatty acid composition, and oil quality in rapeseed under different nitrogen application rates and planting densities. Field experiments were conducted in 2014-2017 for studying the effect of manually induced lodging angles (0 degrees , 30 degrees , 60 degrees , and 90 degrees ), 10, 20 and 30 d post-flowering at different densities and nitrogen application rates. The fertilization/planting density combination N270D45 produced the maximum observed yield and seed quality. Timing and angle of lodging had significant effects on yield. Lodging at 90 degrees induced at 10 d post flowering caused the maximum reduction in yield, biomass, and silique photosynthesis. Seed yield losses were higher at high N application rates, the maximum being at N360D45. Lodging decreased seed oil content and altered its fatty acid composition by increasing stearic and palmitic acid content, while decreasing linoleic and linolenic acid content, and deteriorating oil quality by increasing erucic acid and glucosinolate content. Therefore, lodging-induced yield loss and reduction in oil content might be reduced by selecting optimum N level and planting density. PMID- 29330470 TI - beta-Ecdysterone protects SH-SY5Y cells against beta-amyloid-induced apoptosis via c-Jun N-terminal kinase- and Akt-associated complementary pathways. AB - Recently, the significantly higher incidence of Alzheimer's disease (AD) in women than in men has been attributed to the loss of neuroprotective estrogen after menopause. Does phytoestrogen have the ability to protect against amyloid-beta (Abeta) toxicity? The aim of this study was to evaluate hypothesis that beta ecdysterone (beta-Ecd) protects SH-SY5Y cells from Abeta-induced apoptosis by separate signaling pathways involving protein kinase B (Akt) and c-Jun N-terminal kinase (JNK). Here, we demonstrate that phytoestrogen beta-Ecd inhibits Abeta triggered mitochondrial apoptotic pathway, as indicated by Bcl-2/Bax ratio elevation, cytochrome c (cyt c) release reduction, and caspase-9 inactivation. Interestingly, beta-Ecd upregulates Bcl-2 expression in SH-SY5Y cells under both basal and Abeta-challenged conditions, but downregulates Bax expression only in Abeta-challenged conditions. Subsequently, Akt-dependent NF-kappaB activation is required for Bcl-2 upregulation, but not Bax downregulation, in response to beta Ecd, which was validated by the use of LY294002 and Bay11-7082. Notably, beta-Ecd attenuates the Abeta-evoked reactive oxygen species (ROS) production, apoptosis signal-regulating kinase 1 (ASK1) phosphorylation and JNK activation without altering the basal ASK1 phosphorylation and JNK activation. ROS-scavenging by diphenyleneiodonium (DPI) abrogated the ability of beta-Ecd to alter the activation of ASK1. Simultaneously, inhibition of JNK by SP600125 abolished beta Ecd-induced Bax downregulation in Abeta-challenged SH-SY5Y cells, whereas LY294002 failed to do so. Consequently, beta-Ecd possesses neuroprotection by different and complementary pathways, which together promote a Bcl-2/Bax ratio. These data support our hypothesis and suggest that beta-Ecd is a promising candidate for the treatment of AD. PMID- 29330469 TI - Mycobacterium tuberculosis Exploits a Molecular Off Switch of the Immune System for Intracellular Survival. AB - Mycobacterium tuberculosis (M. tuberculosis) survives and multiplies inside human macrophages by subversion of immune mechanisms. Although these immune evasion strategies are well characterised functionally, the underlying molecular mechanisms are poorly understood. Here we show that during infection of human whole blood with M. tuberculosis, host gene transcriptional suppression, rather than activation, is the predominant response. Spatial, temporal and functional characterisation of repressed genes revealed their involvement in pathogen sensing and phagocytosis, degradation within the phagolysosome and antigen processing and presentation. To identify mechanisms underlying suppression of multiple immune genes we undertook epigenetic analyses. We identified significantly differentially expressed microRNAs with known targets in suppressed genes. In addition, after searching regions upstream of the start of transcription of suppressed genes for common sequence motifs, we discovered novel enriched composite sequence patterns, which corresponded to Alu repeat elements, transposable elements known to have wide ranging influences on gene expression. Our findings suggest that to survive within infected cells, mycobacteria exploit a complex immune "molecular off switch" controlled by both microRNAs and Alu regulatory elements. PMID- 29330471 TI - SLC26A3 (DRA) prevents TNF-alpha-induced barrier dysfunction and dextran sulfate sodium-induced acute colitis. AB - SLC26A3 encodes a Cl-/HCO3- ion transporter that is also known as downregulated in adenoma (DRA) and is involved in HCO3-/mucus formation. The role of DRA in the epithelial barrier has not been previously established. In this study, we investigated the in vivo and in vitro mechanisms of DRA in the colon epithelial barrier. Immunofluorescence (IF) and co-immunoprecipitation (co-IP) studies reveal that DRA binds directly to tight junction (TJ) proteins and affects the expression of TJ proteins in polarized Caco-2BBe cells. Similarly, DRA colocalizes with ZO-1 in the intestinal epithelium. Knockdown or overexpression of DRA leads to alterations in TJ proteins and epithelial permeability. In addition, TNF-alpha treatment downregulates DRA by activating NF-kB and subsequently affecting intestinal epithelial barrier integrity. Furthermore, overexpression of DRA partly reverses the TNF-alpha-induced damage by stabilizing TJ proteins. Neutralization of TNF-alpha in dextran sulfate sodium (DSS)-induced colitis mice demonstrates improved the outcomes, and the therapeutic effect of the TNF-alpha neutralizing mAb is mediated in part by the preservation of DRA expression. These data suggest that DRA may be one of the therapeutic targets of TNF-alpha. Moreover, DRA delivered by adenovirus vector significantly prevents the exacerbation of colitis and improves epithelial barrier function by promoting the recovery of TJ proteins in DSS-treated mice. In conclusion, DRA plays a role in protecting the epithelial barrier and may be a therapeutic target in gut homeostasis. PMID- 29330472 TI - Amyloid deposition in a mouse model humanized at the transthyretin and retinol binding protein 4 loci. AB - Familial amyloidotic polyneuropathy is an autosomal dominant disorder caused by a point mutation in the transthyretin (TTR) gene. The process of TTR amyloidogenesis begins with rate-limiting dissociation of the TTR tetramer. Thus, the TTR stabilizers, such as Tafamidis and Diflunisal, are now in clinical trials. Mouse models will be useful to testing the efficacy of these drugs. Although several mouse models have been generated, they all express mouse Rbp4. Thus, human TTR associates with mouse RBP4, resulting in different kinetic and thermodynamic stability profiles of TTR tetramers. To overcome this problem, we previously produced humanized mouse strains at both the TTR and Rbp4 loci (Ttr hTTRVal30 , Ttr hTTRMet30 , and Rbp4 hRBP4 ). By mating these mice, we produced double-humanized mouse strains, Ttr hTTRVal30/hTTRVal30 :Rbp4 hRBP4/hRBP4 and Ttr hTTRVal30/Met30 :Rbp4 hRBP4/hRBP4 . We used conventional transgenic mouse strains on a wild-type (Ttr +/+ :Tg[6.0hTTRMet30]) or knockout Ttr background (Ttr-/ :Tg[6.0hTTRMet30]) as reference strains. The double-humanized mouse showed 1/25 of serum hTTR and 1/40 of serum hRBP4 levels. However, amyloid deposition was more pronounced in Ttr hTTRVal30/Met30 :Rbp4 hRBP4/hRBP4 than in conventional transgenic mouse strains. In addition, a similar amount of amyloid deposition was also observed in Ttr hTTRVal30/ hTTRVal30 :Rbp4 hRBP4/ hRBP4 mice that carried the wild-type human TTR gene. Furthermore, amyloid deposition was first observed in the sciatic nerve without any additional genetic change. In all strains, anti TTR antibody-positive deposits were found in earlier age and at higher percentage than amyloid fibril deposition. In double-humanized mice, gel filtration analysis of serum revealed that most hTTR was free of hRBP4, suggesting importance of free TTR for amyloid deposition. PMID- 29330473 TI - Endothelial heparan sulfate deficiency reduces inflammation and fibrosis in murine diabetic nephropathy. AB - Inflammation plays a vital role in the development of diabetic nephropathy, but the underlying regulatory mechanisms are only partially understood. Our previous studies demonstrated that, during acute inflammation, endothelial heparan sulfate (HS) contributes to the adhesion and transendothelial migration of leukocytes into perivascular tissues by direct interaction with L-selectin and the presentation of bound chemokines. In the current study, we aimed to assess the role of endothelial HS on chronic renal inflammation and fibrosis in a diabetic nephropathy mouse model. To reduce sulfation of HS specifically in the endothelium, we generated Ndst1 f/f Tie2Cre + mice in which N-deacetylase/N sulfotransferase-1 (Ndst1), the gene that initiates HS sulfation modifications in HS biosynthesis, was expressly ablated in endothelium. To induce diabetes, age matched male Ndst1 f/f Tie2Cre - (wild type) and Ndst1 f/f Tie2Cre + mice on a C57Bl/6J background were injected intraperitoneally with streptozotocin (STZ) (50 mg/kg) on five consecutive days (N = 10-11/group). Urine and plasma were collected. Four weeks after diabetes induction the animals were sacrificed and kidneys were analyzed by immunohistochemistry and qRT-PCR. Compared to healthy controls, diabetic Ndst1 f/f Tie2Cre - mice showed increased glomerular macrophage infiltration, mannose binding lectin complement deposition and glomerulosclerosis, whereas these pathological reactions were prevented significantly in the diabetic Ndst1 f/f Tie2Cre + animals (all three p < 0.01). In addition, the expression of the podocyte damage marker desmin was significantly higher in the Ndst1 f/f Tie2Cre - group compared to the Ndst1 f/f Tie2Cre + animals (p < 0.001), although both groups had comparable numbers of podocytes. In the cortical tubulo-interstitium, similar analyses show decreased interstitial macrophage accumulation in the diabetic Ndst1 f/f Tie2Cre + animals compared to the diabetic Ndst1 f/f Tie2Cre - mice (p < 0.05). Diabetic Ndst1 f/f Tie2Cre + animals also showed reduced interstitial fibrosis as evidenced by reduced density of alphaSMA-positive myofibroblasts (p < 0.01), diminished collagen III deposition (p < 0.001) and reduced mRNA expression of collagen I (p < 0.001) and fibronectin (p < 0.001). Our studies indicate a pivotal role of endothelial HS in the development of renal inflammation and fibrosis in diabetic nephropathy in mice. These results suggest that HS is a possible target for therapy in diabetic nephropathy. PMID- 29330475 TI - Recent enhanced high-summer North Atlantic Jet variability emerges from three century context. AB - A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the northeastern Mediterranean to reconstruct variability in the latitudinal position of the high summer North Atlantic Jet (NAJ) back to 1725 CE. We find that northward NAJ anomalies have resulted in heatwaves and droughts in northwestern Europe and southward anomalies have promoted wildfires in southeastern Europe. We further find an unprecedented increase in NAJ variance since the 1960s, which co-occurs with enhanced late twentieth century variance in the Central and North Pacific Basin. Our results suggest increased late twentieth century interannual meridional jet stream variability and support more sinuous jet stream patterns and quasi-resonant amplification as potential dynamic pathways for Arctic warming to influence mid-latitude weather. PMID- 29330474 TI - A De Novo FOXP1 Truncating Mutation in a Patient Originally Diagnosed as C Syndrome. AB - De novo FOXP1 mutations have been associated with intellectual disability (ID), motor delay, autistic features and a wide spectrum of speech difficulties. C syndrome (Opitz C trigonocephaly syndrome) is a rare and genetically heterogeneous condition, characterized by trigonocephaly, craniofacial anomalies and ID. Several different chromosome deletions and and point mutations in distinct genes have been associated with the disease in patients originally diagnosed as Opitz C. By whole exome sequencing we identified a de novo splicing mutation in FOXP1 in a patient, initially diagnosed as C syndrome, who suffers from syndromic intellectual disability with trigonocephaly. The mutation (c.1428 + 1 G > A) promotes the skipping of exon 16, a frameshift and a premature STOP codon (p.Ala450GLyfs*13), as assessed by a minigene strategy. The patient reported here shares speech difficulties, intellectual disability and autistic features with other FOXP1 syndrome patients, and thus the diagnosis for this patient should be changed. Finally, since trigonocephaly has not been previously reported in FOXP1 syndrome, it remains to be proved whether it may be associated with the FOXP1 mutation. PMID- 29330476 TI - High-performance flexible supercapacitors based on electrochemically tailored three-dimensional reduced graphene oxide networks. AB - A simple approach for growing porous electrochemically reduced graphene oxide (pErGO) networks on copper wire, modified with galvanostatically deposited copper foam is demonstrated. The as-prepared pErGO networks on the copper wire are directly used to fabricate solid-state supercapacitor. The pErGO-based supercapacitor can deliver a specific capacitance (Csp) as high as 81+/-3 F g-1 at 0.5 A g-1 with polyvinyl alcohol/H3PO4 gel electrolyte. The Csp per unit length and area are calculated as 40.5 mF cm-1 and 283.5 mF cm-2, respectively. The shape of the voltammogram retained up to high scan rate of 100 V s-1. The pErGO-based supercapacitor device exhibits noticeably high charge-discharge cycling stability, with 94.5% Csp retained even after 5000 cycles at 5 A g-1. Nominal change in the specific capacitance, as well as the shape of the voltammogram, is observed at different bending angles of the device even after 5000 cycles. The highest energy density of 11.25 W h kg-1 and the highest power density of 5 kW kg-1 are also achieved with this device. The wire-based supercapacitor is scalable and highly flexible, which can be assembled with/without a flexible substrate in different geometries and bending angles for illustrating promising use in smart textile and wearable device. PMID- 29330477 TI - Labile organic carbon pools and enzyme activities of Pinus massoniana plantation soil as affected by understory vegetation removal and thinning. AB - The effects of forest management on carbon (C) sequestration are poorly understood, particularly in the Three Gorges Reservoir area. We aimed to identify the effects of forest management on C sequestration in Pinus massoniana plantations. An intact control forest (CK), a site undergoing regular shrub cutting with the simultaneous removal of residues (SC), a site under low intensity thinning (LIT), and a site under high-intensity thinning (HIT) were compared for soil labile organic carbon (LOC), related enzyme activities, and soil characteristics. Soil organic carbon (SOC) significantly decreased in the HIT treatment as compared with that in the CK treatment. Soil EOC, DOC, MBC contents in treated plots were higher than those in the CK treatment; particularly, the HIT treatment significantly increased those values in 0-10 cm layer. Thinning resulted in a decrease in cellulase and amylase activities, but an increase in invertase activity. In addition, the SOC content was significantly correlated with four enzymes activities and LOC components, which suggested that the soil LOC components and enzymes activities were sensitive to the changes of SOC. Our results suggest that high-intensity thinning treatment in Pinus massoniana plantation could significantly decrease the SOC content and lead to an increase of LOC components. PMID- 29330479 TI - Titania (TiO2) nanoparticles enhance the performance of growth-promoting rhizobacteria. AB - A novel use of nanotitania (TNs) as agents in the nanointerface interaction between plants and colonization of growth promoting rhizobacteria (PGPR) is presented. The effectiveness of PGPRs is related to the effectiveness of the technology used for their formulation. TNs produced by the Captigel patented SolGel approach, characterized by the transmission and scanning electron microscopy were used for formulation of the harsh environment PGPR strains. Changes in the biomass of wheat seedlings and in the density of single and double inoculants with and without TNs were monitored during two weeks of stress induced by drought salt and by the pathogen Fusarium culmorum. We show that double inoculants with TNs can attach stably to plant roots. Regression analysis indicates that there is a positive interaction between seedling biomass and TN treated second inoculant colonization. We conclude that TN treatment provides an effectual platform for PGPR rational application via design of root microbial community. Our studies illustrate the importance of considering natural soil nanoparticles for PGPR application and thereby may explain the generally observed inconsistent behavior of PGPRs in the field. These new advancements importantly contribute towards solving food security issues in changing climates. The model systems established here provide a basis for new PGPR nanomaterials research. PMID- 29330478 TI - Interaction of suppressor of cytokine signalling 3 with cavin-1 links SOCS3 function and cavin-1 stability. AB - Effective suppression of JAK-STAT signalling by the inducible inhibitor "suppressor of cytokine signalling 3" (SOCS3) is essential for limiting signalling from cytokine receptors. Here we show that cavin-1, a component of caveolae, is a functionally significant SOCS3-interacting protein. Biochemical and confocal imaging demonstrate that SOCS3 localisation to the plasma membrane requires cavin-1. SOCS3 is also critical for cavin-1 stabilisation, such that deletion of SOCS3 reduces the expression of cavin-1 and caveolin-1 proteins, thereby reducing caveola abundance in endothelial cells. Moreover, the interaction of cavin-1 and SOCS3 is essential for SOCS3 function, as loss of cavin-1 enhances cytokine-stimulated STAT3 phosphorylation and abolishes SOCS3 dependent inhibition of IL-6 signalling by cyclic AMP. Together, these findings reveal a new functionally important mechanism linking SOCS3-mediated inhibition of cytokine signalling to localisation at the plasma membrane via interaction with and stabilisation of cavin-1. PMID- 29330480 TI - Anti-correlated cortical networks arise from spontaneous neuronal dynamics at slow timescales. AB - In the highly interconnected architectures of the cerebral cortex, recurrent intracortical loops disproportionately outnumber thalamo-cortical inputs. These networks are also capable of generating neuronal activity without feedforward sensory drive. It is unknown, however, what spatiotemporal patterns may be solely attributed to intrinsic connections of the local cortical network. Using high density microelectrode arrays, here we show that in the isolated, primary somatosensory cortex of mice, neuronal firing fluctuates on timescales from milliseconds to tens of seconds. Slower firing fluctuations reveal two spatially distinct neuronal ensembles, which correspond to superficial and deeper layers. These ensembles are anti-correlated: when one fires more, the other fires less and vice versa. This interplay is clearest at timescales of several seconds and is therefore consistent with shifts between active sensing and anticipatory behavioral states in mice. PMID- 29330482 TI - Normal karyotype in myelofibrosis: is prognostic integrity affected by the number of metaphases analyzed? PMID- 29330481 TI - FDXR is a biomarker of radiation exposure in vivo. AB - Previous investigations in gene expression changes in blood after radiation exposure have highlighted its potential to provide biomarkers of exposure. Here, FDXR transcriptional changes in blood were investigated in humans undergoing a range of external radiation exposure procedures covering several orders of magnitude (cardiac fluoroscopy, diagnostic computed tomography (CT)) and treatments (total body and local radiotherapy). Moreover, a method was developed to assess the dose to the blood using physical exposure parameters. FDXR expression was significantly up-regulated 24 hr after radiotherapy in most patients and continuously during the fractionated treatment. Significance was reached even after diagnostic CT 2 hours post-exposure. We further showed that no significant differences in expression were found between ex vivo and in vivo samples from the same patients. Moreover, potential confounding factors such as gender, infection status and anti-oxidants only affect moderately FDXR transcription. Finally, we provided a first in vivo dose-response showing dose dependency even for very low doses or partial body exposure showing good correlation between physically and biologically assessed doses. In conclusion, we report the remarkable responsiveness of FDXR to ionising radiation at the transcriptional level which, when measured in the right time window, provides accurate in vivo dose estimates. PMID- 29330483 TI - Neural Correlates of Sexual Orientation in Heterosexual, Bisexual, and Homosexual Women. AB - We used fMRI to investigate neural correlates of responses to erotic pictures and videos in heterosexual (N = 26), bisexual (N = 26), and homosexual (N = 24) women, ages 25-50. We focused on the ventral striatum, an area of the brain associated with desire, extending previous findings from the sexual psychophysiology literature in which homosexual women had greater category specificity (relative to heterosexual and bisexual women) in their responses to male and female erotic stimuli. We found that homosexual women's subjective and neural responses reflected greater bias towards female stimuli, compared with bisexual and heterosexual women, whose responses did not significantly differ. These patterns were also suggested by whole brain analyses, with homosexual women showing category-specific activations of greater extents in visual and auditory processing areas. Bisexual women tended to show more mixed patterns, with activations more responsive to female stimuli in sensory processing areas, and activations more responsive to male stimuli in areas associated with social cognition. PMID- 29330484 TI - Single-cell RNA-sequencing resolves self-antigen expression during mTEC development. AB - The crucial capability of T cells for discrimination between self and non-self peptides is based on negative selection of developing thymocytes by medullary thymic epithelial cells (mTECs). The mTECs purge autoreactive T cells by expression of cell-type specific genes referred to as tissue-restricted antigens (TRAs). Although the autoimmune regulator (AIRE) protein is known to promote the expression of a subset of TRAs, its mechanism of action is still not fully understood. The expression of TRAs that are not under the control of AIRE also needs further characterization. Furthermore, expression patterns of TRA genes have been suggested to change over the course of mTEC development. Herein we have used single-cell RNA-sequencing to resolve patterns of TRA expression during mTEC development. Our data indicated that mTEC development consists of three distinct stages, correlating with previously described jTEC, mTEChi and mTEClo phenotypes. For each subpopulation, we have identified marker genes useful in future studies. Aire-induced TRAs were switched on during jTEC-mTEC transition and were expressed in genomic clusters, while otherwise the subsets expressed largely overlapping sets of TRAs. Moreover, population-level analysis of TRA expression frequencies suggested that such differences might not be necessary to achieve efficient thymocyte selection. PMID- 29330485 TI - The Structure of Metal Binding Domain 1 of the Copper Transporter ATP7B Reveals Mechanism of a Singular Wilson Disease Mutation. AB - Copper-transporter ATP7B maintains copper homeostasis in the human cells and delivers copper to the biosynthetic pathways for incorporation into the newly synthesized copper-containing proteins. ATP7B is a target of several hundred mutations that lead to Wilson disease, a chronic copper toxicosis. ATP7B contains a chain of six cytosolic metal-binding domains (MBDs), the first four of which (MBD1-4) are believed to be regulatory, and the last two (MBD5-6) are required for enzyme activity. We report the NMR structure of MBD1, the last unsolved metal binding domain of ATP7B. The structure reveals the disruptive mechanism of G85V mutation, one of the very few disease causing missense mutations in the MBD1-4 region of ATP7B. PMID- 29330486 TI - New generation of drug delivery systems based on ginsenoside Rh2-, Lysine- and Arginine-treated highly porous graphene for improving anticancer activity. AB - In this study, Rh2-treated graphene oxide (GO-Rh2), lysine-treated highly porous graphene (Gr-Lys), arginine-treated Gr (Gr-Arg), Rh2-treated Gr-Lys (Gr-Lys-Rh2) and Rh2-treated Gr-Arg (Gr-Arg-Rh2) were synthesized. MTT assay was used for evaluation of cytotoxicity of samples on ovarian cancer (OVCAR3), breast cancer (MDA-MB), Human melanoma (A375) and human mesenchymal stem cells (MSCs) cell lines. The percentage of apoptotic cells was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL) assay. The hemolysis and blood coagulation activity of nanostructures were performed. Interestingly, Gr-Arg, Gr-Lys, Gr-Arg-Rh2, and Gr-Lys-Rh2 were more active against cancer cell lines in comparison with their cytotoxic activity against normal cell lines (MSCs) with IC50 values higher than 100 MUg/ml. The results of TUNEL assay indicates a significant increase in the rates of TUNEL positive cells by increasing the concentrations of nanomaterials. Results were also shown that aggregation and changes of RBCs morphology were occurred in the presence of GO, GO-Rh2, Gr-Arg, Gr-Lys, Gr-Arg-Rh2, and Gr-Lys-Rh2. Note that all the samples had effect on blood coagulation system, especially on PTT. All nanostrucure act as antitumor drug so that binding of drugs to a nostructures is irresolvable and the whole structure enter to the cell as a drug. PMID- 29330487 TI - A Biomarker Characterizing Neurodevelopment with applications in Autism. AB - Despite great advances in neuroscience and genetic studies, our understanding of neurodevelopmental disorders is still quite limited. An important reason is not having objective psychiatric clinical tests. Here we propose a quantitative neurodevelopment assessment by studying natural movement outputs. Movement is central to behaviors: It involves complex coordination, temporal alterations, and precise dynamic controls. We carefully analyzed the continuous movement output data, collected with high definition electromagnetic sensors at millisecond time scales. We unraveled new metrics containing striking physiological information that was unseen neither by using traditional motion assessments nor by naked eye observations. Our putative biomarker leads to precise individualized classifications. It illustrates clear differences between Autism Spectrum Disorder (ASD) subjects from mature typical developing (TD) individuals. It provides an ASD complementary quantitative classification, which closely agrees with the clinicaly assessed functioning levels in the spectrum. It also illustrates TD potential age-related neurodevelopmental trajectories. Applying our movement biomarker to the parents of the ASD individuals studied in the cohort also shows a novel potential familial signature ASD tie. This paper proposes a putative behavioral biomarker to characterize the level of neurodevelopment with high predicting power, as illustrated in ASD subjects as an example. PMID- 29330488 TI - Motor skill learning and reward consumption differentially affect VTA activation. AB - Dopamine release from the ventral tegmental area (VTA) terminals in the primary motor cortex (M1) enables motor skill acquisition. Here, we test the hypothesis that dopaminergic VTA neurons projecting to M1 are activated when rewards are obtained during motor skill acquisition, but not during task execution at plateau performance, or by rewards obtained without performing skilled movements. Rats were trained to perform a skilled reaching task for 3 days (acquisition) or 7 days (plateau). In combination with retrograde labelling of VTA-to-M1 projection neurons, double immunofluorescence for c-fos and tyrosine hydroxylase (TH) was used to assess activation of dopaminergic and non-dopaminergic VTA neurons. Dopaminergic VTA-to-M1 projection neurons were indeed activated during successful motor skill acquisition, but not when rats failed to learn or had reached plateau performance, nor by food rewards alone. By contrast, dopaminergic VTA neurons that did not project to M1 were activated by both skilled reaching and food rewards. Non-dopaminergic neurons were found to be activated by motor task performance at plateau, but not during skill acquisition. These results indicate that distinct populations of VTA neurons are activated by motor skill acquisition and task performance. Moreover, this activation is not merely related to consumption of food rewards. PMID- 29330489 TI - Decoding hind limb kinematics from neuronal activity of the dorsal horn neurons using multiple level learning algorithm. AB - Decoding continuous hind limb joint angles from sensory recordings of neural system provides a feedback for closed-loop control of hind limb movement using functional electrical stimulation. So far, many attempts have been done to extract sensory information from dorsal root ganglia and sensory nerves. In this work, we examine decoding joint angles trajectories from the single-electrode extracellular recording of dorsal horn gray matter of the spinal cord during passive limb movement in anesthetized cats. In this study, a processing framework based on ensemble learning approach is propose to combine firing rate (FR) and interspike interval (ISI) information of the neuronal activity. For this purpose, a stacked generalization approach based on recurrent neural network is proposed to enhance decoding accuracy of the movement kinematics. The results show that the high precision neural decoding of limb movement can be achieved even with a single electrode implanted in the spinal cord gray matter. PMID- 29330491 TI - Application of Hydrazine-Embedded Heterocyclic Compounds to High Voltage Rechargeable Lithium Organic Batteries. AB - Hydrazine-embedded heterocyclic compounds with dimeric dimethylacridine (1b), carbazole (2b), and phenothiazine (3b) skeletons were applied to cathode active materials of rechargeable lithium organic batteries, and the performance of the batteries was evaluated. The charge/discharge curves exhibited clear plateaus in the high voltage range of 3.3-3.7 V. The capacities of the plateau regions were comparable to the calculated capacities corresponding to the one-electron redox of the molecules. The amount of the active compound 3b could be increased up to 30 wt% in the electrode composite, and fast charge/discharge performance was also observed. PMID- 29330490 TI - Differentially expressed microRNAs between cattleyak and yak testis. AB - Cattleyak are interspecific hybrids between cattle and yak, exhibiting the same prominent adaptability as yak and much higher performances than yak. However, male infertility of cattleyak resulted from spermatogenic arrest has greatly restricted their effective utilization in yak breeding. In past decades, much work has been done to investigate the mechanisms of spermatogenic arrest, but little is known about the differences of the post-transcriptional regulators between cattleyak and yak, which may contribute to the impaired spermatogenesis. MiRNAs, a class of endogenous non-coding small RNA, were revealed to play crucial roles in regulating gene expression at post-transcriptional level. In the present study, we identified 50 differentially expressed (DE) known miRNAs and 11 novel miRNAs by using Illumina HISeq and bioinformatic analysis. A total of 50 putative target sites for the 13 DE known miRNAs and 30 for the 6 DE novel miRNAs were identified, respectively. GO and KEGG analyses were performed to reveal the functions of target genes for DE miRNAs. In addition, RT-qPCR was performed to validate the expression of the DE miRNAs and its targets. The identification of these miRNAs may provide valuable information for a better understanding of spermatogenic arrest in cattleyak. PMID- 29330492 TI - Turning a normal microscope into a super-resolution instrument using a scanning microlens array. AB - We report dielectric microsphere array-based optical super-resolution microscopy. A dielectric microsphere that is placed on a sample is known to generate a virtual image with resolution better than the optical diffraction limit. However, a limitation of such type of super-resolution microscopy is the restricted field of-view, essentially limited to the central area of the microsphere-generated image. We overcame this limitation by scanning a micro-fabricated array of ordered microspheres over the sample using a customized algorithm that moved step by-step a motorized stage, meanwhile the microscope-mounted camera was taking pictures at every step. Finally, we stitched together the extracted central parts of the virtual images that showed super-resolution into a mosaic image. We demonstrated 130 nm lateral resolution (~lambda/4) and 5 * 105 um2 scanned surface area using a two by one array of barium titanate glass microspheres in oil-immersion environment. Our findings may serve as a basis for widespread applications of affordable optical super-resolution microscopy. PMID- 29330493 TI - Development of versatile non-homologous end joining-based knock-in module for genome editing. AB - CRISPR/Cas9-based genome editing has dramatically accelerated genome engineering. An important aspect of genome engineering is efficient knock-in technology. For improved knock-in efficiency, the non-homologous end joining (NHEJ) repair pathway has been used over the homology-dependent repair pathway, but there remains a need to reduce the complexity of the preparation of donor vectors. We developed the versatile NHEJ-based knock-in module for genome editing (VIKING). Using the consensus sequence of the time-honored pUC vector to cut donor vectors, any vector with a pUC backbone could be used as the donor vector without customization. Conditions required to minimize random integration rates of the donor vector were also investigated. We attempted to isolate null lines of the VDR gene in human HaCaT keratinocytes using knock-in/knock-out with a selection marker cassette, and found 75% of clones isolated were successfully knocked-in. Although HaCaT cells have hypotetraploid genome composition, the results suggest multiple clones have VDR null phenotypes. VIKING modules enabled highly efficient knock-in of any vectors harboring pUC vectors. Users now can insert various existing vectors into an arbitrary locus in the genome. VIKING will contribute to low-cost genome engineering. PMID- 29330495 TI - Large unexplained suite of chemically reactive compounds present in ambient air due to biomass fires. AB - Biomass fires impact global atmospheric chemistry. The reactive compounds emitted and formed due to biomass fires drive ozone and organic aerosol formation, affecting both air quality and climate. Direct hydroxyl (OH) Reactivity measurements quantify total gaseous reactive pollutant loadings and comparison with measured compounds yields the fraction of unmeasured compounds. Here, we quantified the magnitude and composition of total OH reactivity in the north-west Indo-Gangetic Plain. More than 120% increase occurred in total OH reactivity (28 s-1 to 64 s-1) and from no missing OH reactivity in the normal summertime air, the missing OH reactivity fraction increased to ~40 % in the post-harvest summertime period influenced by large scale biomass fires highlighting presence of unmeasured compounds. Increased missing OH reactivity between the two summertime periods was associated with increased concentrations of compounds with strong photochemical source such as acetaldehyde, acetone, hydroxyacetone, nitromethane, amides, isocyanic acid and primary emissions of acetonitrile and aromatic compounds. Currently even the most detailed state-of-the art atmospheric chemistry models exclude formamide, acetamide, nitromethane and isocyanic acid and their highly reactive precursor alkylamines (e.g. methylamine, ethylamine, dimethylamine, trimethylamine). For improved understanding of atmospheric chemistry-air quality-climate feedbacks in biomass-fire impacted atmospheric environments, future studies should include these compounds. PMID- 29330494 TI - Characterizing the bacterial microbiota in different gastrointestinal tract segments of the Bactrian camel. AB - The bacterial community plays important roles in the gastrointestinal tracts (GITs) of animals. However, our understanding of the microbial communities in the GIT of Bactrian camels remains limited. Here, we describe the bacterial communities from eight different GIT segments (rumen, reticulum, abomasum, duodenum, ileum, jejunum, caecum, colon) and faeces determined from 11 Bactrian camels using 16S rRNA gene amplicon sequencing. Twenty-seven bacterial phyla were found in the GIT, with Firmicutes, Verrucomicrobia and Bacteroidetes predominating. However, there were significant differences in microbial community composition between segments of the GIT. In particular, a greater proportion of Akkermansia and Unclassified Ruminococcaceae were found in the large intestine and faecal samples, while more Unclassified Clostridiales and Unclassified Bacteroidales were present in the in forestomach and small intestine. Comparative analysis of the microbiota from different GIT segments revealed that the microbial profile in the large intestine was like that in faeces. We also predicted the metagenomic profiles for the different GIT regions. In forestomach, there was enrichment associated with replication and repair and amino acid metabolism, while carbohydrate metabolism was enriched in the large intestine and faeces. These results provide profound insights into the GIT microbiota of Bactrian camels. PMID- 29330496 TI - Framing Continental Shelf Waves in the southern Adriatic Sea, a further flushing factor beyond dense water cascading. AB - Continental Shelf Waves (CSWs) are oscillatory phenomena migrating along the continental margins, controlled by the interplay of rotation and bathymetric gradients. Here we combine observational data from five moored current meters and high-resolution hydrodynamic model fields for describing the generation and propagation of CSWs along the Southern Adriatic Margin (SAM, eastern Mediterranean Sea), where the possibility of their occurrence has been theoretically hypothesised but not experimentally observed up to now. Results show that in spring 2012 a train of CSWs with 35-87 km wavelength and 2-4 day period was generated on the northern sectors of the SAM and propagated southwards along its western slope. Along their path, CSWs modify their apparent frequency and oscillation mode as an effect of the background current and scattering caused by changes in the continental margin morphology. This signal appears as a persistent feature triggered by the inflow of a dense water vein formed in the northern Adriatic Sea, propagating upwelling and downwelling patterns along broad sectors of the continental slope. CSWs thus appear as an additional remote controlled mechanism for cross-shelf exchange of water, sediment and nutrients in the SAM, besides the well-acknowledged dense water downflow along preferential pathways driven by local topographic constraints. PMID- 29330498 TI - Replication of biocompatible, nanotopographic surfaces. AB - The ability of cells to sense and respond to nanotopography is being implicated as a key element in many physiological processes such as cell differentiation, immune response, and wound healing, as well as in pathologies such as cancer metastasis. To understand how nanotopography affects cellular behaviors, new techniques are required for the mass production of biocompatible, rigid nanotopographic surfaces. Here we introduce a method for the rapid and reproducible production of biocompatible, rigid, acrylic nanotopographic surfaces, and for the functionalization of the surfaces with adhesion-promoting molecules for cell experiments. The replica surfaces exhibit high optical transparency, which is advantageous for high-resolution, live-cell imaging. As a representative application, we demonstrate that epithelial cells form focal adhesions on surfaces composed of nanoscale ridges and grooves, and that the focal adhesions prefer to localize on the nanoridges. We further demonstrate that both F-actin and microtubules align along the nanoridges, but only F-actin aligns along the nanogrooves. The mass production of nanotopographic surfaces opens the door to the investigation of the effect of physical cues on the spatial distribution and the dynamics of intracellular proteins, and to the study of the mechanism of mechanosensing in processes such as cell migration, phagocytosis, division, and differentiation. PMID- 29330497 TI - Visual learning with reduced adaptation is eccentricity-specific. AB - Visual learning is known to be specific to the trained target location, showing little transfer to untrained locations. Recently, learning was shown to transfer across equal-eccentricity retinal-locations when sensory adaptation due to repetitive stimulation was minimized. It was suggested that learning transfers to previously untrained locations when the learned representation is location invariant, with sensory adaptation introducing location-dependent representations, thus preventing transfer. Spatial invariance may also fail when the trained and tested locations are at different distance from the center of gaze (different retinal eccentricities), due to differences in the corresponding low-level cortical representations (e.g. allocated cortical area decreases with eccentricity). Thus, if learning improves performance by better classifying target-dependent early visual representations, generalization is predicted to fail when locations of different retinal eccentricities are trained and tested in the absence sensory adaptation. Here, using the texture discrimination task, we show specificity of learning across different retinal eccentricities (4-8 degrees ) using reduced adaptation training. The existence of generalization across equal eccentricity locations but not across different eccentricities demonstrates that learning accesses visual representations preceding location independent representations, with specificity of learning explained by inhomogeneous sensory representation. PMID- 29330499 TI - Three-Dimensional Physical Model-Assisted Planning and Navigation for Laparoscopic Partial Nephrectomy in Patients with Endophytic Renal Tumors. AB - Resection of completely endophytic renal tumors is a huge challenge for surgeons due to a lack of definite visual clues, especially in the laparoscopic approach. Three-dimensional (3D) kidney models, which can illustrate the clear relationship between renal masses and surrounding health tissues, were considered as reliable tools for understanding renal tumor characteristics in previous studies. We hypothesized that 3D kidney models can be used not only for planning but also for navigating laparoscopic partial nephrectomy (LPN) in patients with completely endophytic renal tumors. In this study, we successfully constructed five cases of 3D kidney models for assisted planning and navigation for LPN in endophytic renal tumors. The renal masses and surrounding normal parenchyma of the patient specific 3D models were dyed by different colorants for clear illustration. All patients experienced acceptable perioperative outcomes, and no patient suffered serious relative complications. The 3D kidney models were considered as a reliable tool based on clinical outcome and postoperative questionnaire results. This study is the first report of 3D kidney models for patients with completely endophytic tumors. 3D kidney models can aid surgeons in understanding the characteristics of renal tumors and potentially support assisted planning and performance of LPN in endophytic tumor cases. PMID- 29330501 TI - Novel endogenous simian retroviral integrations in Vero cells: implications for quality control of a human vaccine cell substrate. AB - African green monkey (AGM)-derived Vero cells have been utilized to produce various human vaccines. The Vero cell genome harbors a variety of simian endogenous type D retrovirus (SERV) sequences. In this study, a transcriptome analysis showed that DNA hypomethylation released the epigenetic repression of SERVs in Vero cells. Moreover, comparative genomic analysis of three Vero cell sublines and an AGM reference revealed that the genomes of the sublines have ~80 SERV integrations. Among them, ~60 integrations are present within all three cell sublines and absent from the reference sequence. At least several of these integrations consist of complete SERV proviruses. These results strongly suggest that SERVs integrated in the genome of Vero cells did not retrotranspose after the establishment of the cell lineage as far as cells were maintained under standard culture and passage conditions, providing a scientific basis for controlling the quality of pharmaceutical cell substrates and their derived biologics. PMID- 29330500 TI - Integration of GWAS, pathway and network analyses reveals novel mechanistic insights into the synthesis of milk proteins in dairy cows. AB - The quantities and proportions of protein fractions have notable effects on the nutritional and technological value of milk. Although much is known about the effects of genetic variants on milk proteins, the complex relationships among the set of genes and pathways regulating the different protein fractions synthesis and secretion into milk in dairy cows are still not completely understood. We conducted genome-wide association studies (GWAS) for milk nitrogen fractions in a cohort of 1,011 Brown Swiss cows, which uncovered 170 significant single nucleotide polymorphism (SNPs), mostly located on BTA6 and BTA11. Gene-set analysis and the network-based Associated Weight Matrix approach revealed that the milk proteins associated genes were involved in several biological functions, particularly ion and cation transmembrane transporter activity and neuronal and hormone signalling, according to the structure and function of casein micelles. Deeper analysis of the transcription factors and their predicted target genes within the network revealed that GFI1B, ZNF407 and NR5A1 might act as master regulators of milk protein synthesis and secretion. The information acquired provides novel insight into the regulatory mechanisms controlling milk protein synthesis and secretion in bovine mammary gland and may be useful in breeding programmes aimed at improving milk nutritional and/or technological properties. PMID- 29330503 TI - Effects of larvae density and food concentration on Crown-of-Thorns seastar (Acanthaster cf. solaris) development in an automated flow-through system. AB - Coral-eating Crown-of-Thorns Sea stars (Acanthaster spp.) are major contributors to coral reef loss in the Indo-Pacific region. A release from food limitation of their planktotrophic larvae through enhanced pelagic productivity is one of the main hypothesis explaining population outbreaks ('nutrient limitation hypothesis'). To improve the understanding of these outbreaks we developed an automated flow- through larvae rearing system that maintained food (microalgae) at set levels over the course of four 15d experiments. This resulted in stable food concentrations in experimental tanks. Increased algae concentrations had a significant positive effect on larval development and size at 10 and 15 days post fertilization (dpf). Larvae densities had no effect at 10 dpf. At 15 dpf greater larvae densities were associated with declines in larvae size. Larval development was slowed under higher larvae densities. Thus, the effects of algae concentration and larvae density were additive at 15 dpf, with larvae under low densities at a given algae concentration being further developed than those under higher densities. The development of a flow-through system gives greater insight into the effect of algae and larvae concentrations on Acanthaster development, and the system can be applied to further test the nutrient-limitation hypothesis for present and future outbreaks. PMID- 29330502 TI - Targeting Insulin-Like Growth Factor-I and Extracellular Matrix Interactions in Melanoma Progression. AB - Insulin-like growth factor (IGF)-I binds to the ECM protein vitronectin (VN) through IGF binding proteins (IGFBPs) to enhance proliferation and migration of skin keratinocytes and fibroblasts. Although evidence exists for the role of individual components of the complex (IGF-I, IGFBP-3 and VN), the cellular functions stimulated by these proteins together as a complex remains un investigated in melanoma cells. We report here that the IGF-I:IGFBP-3:VN trimeric complex stimulates a dose-dependent increase in the proliferation and migration of WM35 and Sk-MEL28 melanoma cells. In 3D MatrigelTM and hydrogel cultures, both cell lines formed primary tumor-like spheroids, which increased in size in a dose dependent manner in response to the trimeric complex. Furthermore, we reveal IGFBP-3:VN protein complexes in malignant melanoma and squamous cell carcinoma patient tissues, where the IGFBP-3:VN complex was seen to be predominantly tumor cell-associated. Peptide antagonists designed to target the binding of IGF I:IGFBP-3 to VN were demonstrated to inhibit IGF-I:IGFBP-3:VN-stimulated cell migration, invasion and 3D tumor cell growth of melanoma cells. Overall, this study provides new data on IGF:ECM interactions in skin malignancies and demonstrates the potential usefulness of a growth factor:ECM-disrupting strategy for abrogating tumor progression. PMID- 29330504 TI - Unique Roles of beta-Arrestin in GPCR Trafficking Revealed by Photoinducible Dimerizers. AB - Intracellular trafficking of G protein-coupled receptors (GPCRs) controls their localization and degradation, which affects a cell's ability to adapt to extracellular stimuli. Although the perturbation of trafficking induces important diseases, these trafficking mechanisms are poorly understood. Herein, we demonstrate an optogenetic method using an optical dimerizer, cryptochrome (CRY) and its partner protein (CIB), to analyze the trafficking mechanisms of GPCRs and their regulatory proteins. Temporally controlling the interaction between beta arrestin and beta2-adrenergic receptor (ADRB2) reveals that the duration of the beta-arrestin-ADRB2 interaction determines the trafficking pathway of ADRB2. Remarkably, the phosphorylation of ADRB2 by G protein-coupled receptor kinases is unnecessary to trigger clathrin-mediated endocytosis, and beta-arrestin interacting with unphosphorylated ADRB2 fails to activate mitogen-activated protein kinase (MAPK) signaling, in contrast to the ADRB2 agonist isoproterenol. Temporal control of beta-arrestin-GPCR interactions will enable the investigation of the unique roles of beta-arrestin and the mechanism by which it regulates beta arrestin-specific trafficking pathways of different GPCRs. PMID- 29330505 TI - Over-expression of a retinol dehydrogenase (SRP35/DHRS7C) in skeletal muscle activates mTORC2, enhances glucose metabolism and muscle performance. AB - SRP-35 is a short-chain dehydrogenase/reductase belonging to the DHRS7C dehydrogenase/ reductase family 7. Here we show that its over-expression in mouse skeletal muscles induces enhanced muscle performance in vivo, which is not related to alterations in excitation-contraction coupling but rather linked to enhanced glucose metabolism. Over-expression of SRP-35 causes increased phosphorylation of AktS473, triggering plasmalemmal targeting of GLUT4 and higher glucose uptake into muscles. SRP-35 signaling involves RARalpha and RARgamma (non genomic effect), PI3K and mTORC2. We also demonstrate that all-trans retinoic acid, a downstream product of the enzymatic activity of SRP-35, mimics the effect of SRP-35 in skeletal muscle, inducing a synergistic effect with insulin on AKTS473 phosphorylation. These results indicate that SRP-35 affects skeletal muscle metabolism and may represent an important target for the treatment of metabolic diseases. PMID- 29330506 TI - Impact of wave whitecapping on land falling tropical cyclones. AB - Predicting tropical cyclone structure and evolution remains challenging. Particularly, the surface wave interactions with the continental shelf and their impact on tropical cyclones have received very little attention. Through a series of state-of-the-art high-resolution, fully-coupled ocean-wave and atmosphere ocean-wave experiments, we show here, for the first time, that in presence of continental shelf waves can cause substantial cooling of the sea surface. Through whitecapping there is a transfer of momentum from the surface which drives deeper vertical mixing. It is the waves and not just the wind which become the major driver of stratified coastal ocean ahead-of-cyclone cooling. In the fully-coupled atmosphere-ocean-wave model a negative feedback is found. The maximum wind speed is weaker and the damaging footprint area of hurricane-force winds is reduced by up to 50% due to the strong wave induced ocean cooling ahead. Including wave ocean coupling is important to improve land falling tropical cyclone intensity predictions for the highly populated and vulnerable coasts. PMID- 29330508 TI - Picometer polar atomic displacements in strontium titanate determined by resonant X-ray diffraction. AB - Physical properties of crystalline materials often manifest themselves as atomic displacements either away from symmetry positions or driven by external fields. Especially the origin of multiferroic or magnetoelectric effects may be hard to ascertain as the related displacements can reach the detection limit. Here we present a resonant X-ray crystal structure analysis technique that shows enhanced sensitivity to minute atomic displacements. It is applied to a recently found crystalline modification of strontium titanate that forms in single crystals under electric field due to oxygen vacancy migration. The phase has demonstrated unexpected properties, including piezoelectricity and pyroelectricity, which can only exist in non-centrosymmetric crystals. Apart from that, the atomic structure has remained elusive and could not be obtained by standard methods. Using resonant X-ray diffraction, we determine atomic displacements with sub-picometer precision and show that the modified structure of strontium titanate corresponds to that of well-known ferroelectrics such as lead titanate. PMID- 29330507 TI - Uncovering the anticancer mechanism of Compound Kushen Injection against HCC by integrating quantitative analysis, network analysis and experimental validation. AB - Compound Kushen Injection (CKI) is a Traditional Chinese Medicine (TCM) preparation that has been clinically used in China to treat various types of solid tumours. Although several studies have revealed that CKI can inhibit the proliferation of hepatocellular carcinoma (HCC) cell lines, the active compounds, potential targets and pathways involved in these effects have not been systematically investigated. Here, we proposed a novel idea of "main active compound-based network pharmacology" to explore the anti-cancer mechanism of CKI. Our results showed that CKI significantly suppressed the proliferation and migration of SMMC-7721 cells. Four main active compounds of CKI (matrine, oxymatrine, sophoridine and N-methylcytisine) were confirmed by the integration of ultra-performance liquid chromatography/mass spectrometry (UPLC-MS) with cell proliferation assays. The potential targets and pathways involved in the anti-HCC effects of CKI were predicted by a network pharmacology approach, and some of the crucial proteins and pathways were further validated by western blotting and metabolomics approaches. Our results indicated that CKI exerted anti-HCC effects via the key targets MMP2, MYC, CASP3, and REG1A and the key pathways of glycometabolism and amino acid metabolism. These results provide insights into the mechanism of CKI by combining quantitative analysis of components, network pharmacology and experimental validation. PMID- 29330509 TI - Transcriptome analysis reveals carbohydrate-mediated liver immune responses in Epinephelus akaara. AB - As the cheapest energy source, carbohydrates are used in fish feeds to improve physical quality and reduce catabolism of proteins and lipids. The liver is the primary organ for metabolism and is also an important site of immune regulation. Here, we investigated the effect of different dietary carbohydrate levels on growth and health by evaluating the liver transcriptome of Epinephelus akaara. In this study, E. akaara juveniles were fed diets containing few (0% corn starch), moderate (18% corn starch), and high (30% corn starch) levels of dietary carbohydrate. After an 8-week feeding trial, E. akaara fed 30% dietary carbohydrates exhibited poor growth performance compared with those fed 0% and 18% dietary carbohydrates (P > 0.05). Genes related to the immune system, including IL8, TLR9, CXCR4, CCL4, and NFkappaB inhibitor alpha, were over expressed in E. akaara fed the highest level of carbohydrate (30%). This general over-expression could indicate activation of inflammatory processes in the liver. The liver transcriptome data of E. akaara reported here indicate that high carbohydrate level of diet can lead to poor growth and inflammatory immune response in E. akaara. PMID- 29330510 TI - Shaping and Controlled Fragmentation of Liquid Metal Droplets through Cavitation. AB - Targeting micrometer sized metal droplets with near-infrared sub-picosecond laser pulses generates intense stress-confined acoustic waves within the droplet. Spherical focusing amplifies their pressures. The rarefaction wave nucleates cavitation at the center of the droplet, which explosively expands with a repeatable fragmentation scenario resulting into high-speed jetting. We predict the number of jets as a function of the laser energy by coupling the cavitation bubble dynamics with Rayleigh-Taylor instabilities. This provides a path to control cavitation and droplet shaping of liquid metals in particular for their use as targets in extreme-UV light sources. PMID- 29330511 TI - Testing density-functional approximations on a lattice and the applicability of the related Hohenberg-Kohn-like theorem. AB - We present a metric-space approach to quantify the performance of approximations in lattice density-functional theory for interacting many-body systems and to explore the regimes where the Hohenberg-Kohn-type theorem on fermionic lattices is applicable. This theorem demonstrates the existence of one-to-one mappings between particle densities, wave functions and external potentials. We then focus on these quantities, and quantify how far apart in metric space the approximated and exact ones are. We apply our method to the one-dimensional Hubbard model for different types of external potentials, and assess the regimes where it is applicable to one of the most used approximations in density-functional theory, the local density approximation (LDA). We find that the potential distance may have a very different behaviour from the density and wave function distances, in some cases even providing the wrong assessments of the LDA performance trends. We attribute this to the systems reaching behaviours which are borderline for the applicability of the one-to-one correspondence between density and external potential. On the contrary the wave function and density distances behave similarly and are always sensitive to system variations. Our metric-based method correctly predicts the regimes where the LDA performs fairly well and the regimes where it fails. This suggests that our method could be a practical tool for testing the efficiency of density-functional approximations. PMID- 29330512 TI - Inactivated rotavirus vaccine by parenteral administration induces mucosal immunity in mice. AB - To improve the safety and efficacy of oral rotavirus vaccines, we developed an inactivated rotavirus vaccine (IRV) for parenteral administration. Since it remains unknown whether parenteral vaccination can induce mucosal immunity, we performed a comprehensive assessment of immune responses to IRV in mice with an adjuvant-free dissolving polymer MN patch or by alum-adjuvanted IM injection. We demonstrated that IRV induced the expression of the gut homing receptor LPAM-1 on T and B cells in spleen and mLN of vaccinated mice. MN patch IRV vaccination induced a slight Th1 phenotype while IM vaccination induced a balanced Th1/Th2 phenotype. In addition, a dose-sparing effect was seen for rotavirus-specific serum IgG and neutralizing activity for both vaccination routes. Our study is the first to show that parenterally administered IRV can induce mucosal immunity in the gut, in addition to strong serum antibody response, and is a promising candidate vaccine in achieving global immunization against rotavirus. PMID- 29330513 TI - Magnetic and structural properties of glass-coated Heusler-type microwires exhibiting martensitic transformation. AB - We have studied magnetic and structural properties of the Heusler-type Ni-Mn-Ga glass-coated microwires prepared by Tailor-Ulitovsky technique. As-prepared sample presents magnetoresistance effect and considerable dependence of magnetization curves (particularly magnetization values) on magnetic field attributed to the magnetic and atomic disorder. Annealing strongly affects the temperature dependence of magnetization and Curie temperature of microwires. After annealing of the microwires at 973 K, the Curie temperature was enhanced to about 280 K which is beneficial for the magnetic solid state refrigeration. The observed hysteretic anomalies on the temperature dependences of resistance and magnetization in the as-prepared and annealed samples are produced by the martensitic transformation. The magnetoresistance and magnetocaloric effects have been investigated to illustrate a potential technological capability of studied microwires. PMID- 29330514 TI - A comparison of static and dynamic cerebral autoregulation during mild whole-body cold stress in individuals with and without cervical spinal cord injury: a pilot study. AB - STUDY DESIGN: Experimental study. OBJECTIVES: To characterize static and dynamic cerebral autoregulation (CA) of individuals with cervical spinal cord injury (SCI) compared to able-bodied controls in response to moderate increases in mean arterial pressure (MAP) caused by mild whole-body cold stress. SETTING: Japan METHODS: Five men with complete autonomic cervical SCI (sustained > 5 y) and six age-matched able-bodied men participated in hemodynamic, temperature, catecholamine and respiratory measurements for 60 min during three consecutive stages: baseline (10 min; 33 degrees C water through a thin-tubed whole-body suit), mild cold stress (20 min; 25 degrees C water), and post-cold recovery (30 min; 33 degrees C water). Static CA was determined as the ratio between mean changes in middle cerebral artery blood velocity and MAP, dynamic CA as transfer function coherence, gain, and phase between spontaneous changes in MAP to middle cerebral artery blood velocity. RESULTS: MAP increased in both groups during cold and post-cold recovery (mean differences: 5-10 mm Hg; main effect of time: p = 0.001). Static CA was not different between the able-bodied vs. the cervical SCI group (mean (95% confidence interval (CI)) of between-group difference: -4 (-11 to 3) and -2 (-5 to 1) cm/s/mm Hg for cold (p = 0.22) and post-cold (p = 0.24), respectively). At baseline, transfer function phase was shorter in the cervical SCI group (mean (95% CI) of between-group difference: 0.6 (0.2 to 1.0) rad; p = 0.006), while between-group differences in changes in phase were not different in response to the cold stress (interaction term: p = 0.06). CONCLUSIONS: This pilot study suggests that static CA is similar between individuals with cervical SCI and able-bodied controls in response to moderate increases in MAP, while dynamic CA may be impaired in cervical SCI because of disturbed sympathetic control. PMID- 29330515 TI - HyphaTracker: An ImageJ toolbox for time-resolved analysis of spore germination in filamentous fungi. AB - The dynamics of early fungal development and its interference with physiological signals and environmental factors is yet poorly understood. Especially computational analysis tools for the evaluation of the process of early spore germination and germ tube formation are still lacking. For the time-resolved analysis of conidia germination of the filamentous ascomycete Fusarium fujikuroi we developed a straightforward toolbox implemented in ImageJ. It allows for processing of microscopic acquisitions (movies) of conidial germination starting with drift correction and data reduction prior to germling analysis. From the image time series germling related region of interests (ROIs) are extracted, which are analysed for their area, circularity, and timing. ROIs originating from germlings crossing other hyphae or the image boundaries are omitted during analysis. Each conidium/hypha is identified and related to its origin, thus allowing subsequent categorization. The efficiency of HyphaTracker was proofed and the accuracy was tested on simulated germlings at different signal-to-noise ratios. Bright-field microscopic images of conidial germination of rhodopsin deficient F. fujikuroi mutants and their respective control strains were analysed with HyphaTracker. Consistent with our observation in earlier studies the CarO deficient mutant germinated earlier and grew faster than other, CarO expressing strains. PMID- 29330516 TI - Drinking by amphibious fish: convergent evolution of thirst mechanisms during vertebrate terrestrialization. AB - Thirst aroused in the forebrain by angiotensin II (AngII) or buccal drying motivates terrestrial vertebrates to search for water, whereas aquatic fish can drink surrounding water only by reflex swallowing generated in the hindbrain. Indeed, AngII induces drinking through the hindbrain even after removal of the whole forebrain in aquatic fish. Here we show that AngII induces thirst also in the amphibious mudskipper goby without direct action on the forebrain, but through buccal drying. Intracerebroventricular injection of AngII motivated mudskippers to move into water and drink as with tetrapods. However, AngII primarily increased immunoreactive c-Fos at the hindbrain swallowing center where AngII receptors were expressed, as in other ray-finned fish, and such direct action on the forebrain was not found. Behavioural analyses showed that loss of buccal water on land by AngII-induced swallowing, by piercing holes in the opercula, or by water-absorptive gel placed in the cavity motivated mudskippers to move to water for refilling. Since sensory detection of water at the bucco pharyngeal cavity like 'dry mouth' has recently been noted to regulate thirst in mammals, similar mechanisms seem to have evolved in distantly related species in order to solve osmoregulatory problems during terrestrialization. PMID- 29330517 TI - Iron-induced calcification in human aortic vascular smooth muscle cells through interleukin-24 (IL-24), with/without TNF-alpha. AB - In CKD patients, arteriosclerotic lesions, including calcification, can occur in vascular smooth muscle cells in a process called Moenckeberg's medial arteriosclerosis. Iron overload induces several complications, including the acceleration of arteriosclerosis. However, the relationship between Moenckeberg's arteriosclerosis in vascular smooth muscle cells and iron accumulation has remained unknown. We tested the accelerated effect of iron on calcification in cultured human aortic vascular smooth muscle cells (HASMCs). After establishment of this model, we performed a microarray analysis using mRNA from early stage culture HASMCs after iron stimulation with or without TNF-alpha stimulation. The role of interleukin-24 (IL-24) was confirmed from candidate genes that might contribute to calcification. HASMCs demonstrated calcification induced by iron and TNF-alpha. Calcification of HASMCs was synergistically enhanced by stimulation with both iron and TNF-alpha. In the early phase of calcification, microarray analysis revealed up-regulation of IL-24. Stimulation of HASMCs by IL 24 instead of iron induced calcification. The anti-IL-24 antibody reversed the effect of IL-24, supporting the important role of IL-24 in HASMCs calcification. In conclusion, iron-induced calcification in vascular smooth muscle cells occurred via IL-24, IL-24 was increased during the calcification process induced by iron, and IL-24 itself caused calcification in the absence of iron. PMID- 29330518 TI - Spartina alterniflora invasion affects soil carbon in a C3 plant-dominated tidal marsh. AB - The carbon cycle is significantly affected by Spartina alterniflora invasion through its impact on blue carbon in many salt marshes. To determine the impacts on soil organic carbon (SOC), we studied the vertical and horizontal distribution of SOC. And stable carbon isotopes were used to explore the impact of the age of S. alterniflora invasion on SOC in Chongming Dongtan wetland located in the Yangtze River estuary, China. The results showed that the SOC concentration was higher in the S. alterniflora community than that in the native Phragmites australis community. The age of invasion and the SOC concentration increased with increasing elevation, while the SOC concentration decreased with increasing soil depth. The delta13C value became less negative at greater depth, which was related to the contribution from 13C- enriched carbon sources after 3 years of invasion. After 7 and 10 years, the delta13C value became more negative at greater depth in both communities. S. alterniflora had a positive effect on the soil carbon pool, and its contribution was related to soil depth. In the low tidal marshes, the contribution of S. alterniflora was negatively correlated with soil depth, while it was positively correlated with soil depth in the high tidal marshes. The results from this study will contribute to improved understanding of future ecological consequences. PMID- 29330519 TI - Large-scale aggregation analysis of eukaryotic proteins reveals an involvement of intrinsically disordered regions in protein folding. AB - A subset of the proteome is prone to aggregate formation, which is prevented by chaperones in the cell. To investigate whether the basic principle underlying the aggregation process is common in prokaryotes and eukaryotes, we conducted a large scale aggregation analysis of ~500 cytosolic budding yeast proteins using a chaperone-free reconstituted translation system, and compared the obtained data with that of ~3,000 Escherichia coli proteins reported previously. Although the physicochemical properties affecting the aggregation propensity were generally similar in yeast and E. coli proteins, the susceptibility of aggregation in yeast proteins were positively correlated with the presence of intrinsically disordered regions (IDRs). Notably, the aggregation propensity was not significantly changed by a removal of IDRs in model IDR-containing proteins, suggesting that the properties of ordered regions in these proteins are the dominant factors for aggregate formation. We also found that the proteins with longer IDRs were disfavored by E. coli chaperonin GroEL/ES, whereas both bacterial and yeast Hsp70/40 chaperones have a strong aggregation-prevention effect even for proteins possessing IDRs. These results imply that a key determinant to discriminate the eukaryotic proteomes from the prokaryotic proteomes in terms of protein folding would be the attachment of IDRs. PMID- 29330520 TI - Association of Homocysteine with Aysmptomatic Intracranial and Extracranial Arterial Stenosis in Hypertension Patients. AB - Elevated plasma homocysteine (Hcy) is suggested as an independent risk factor for stroke. We aimed to investigate the association of Hcy concentration with intracranial atherosclerosis (ICAS) and extracranial AS (ECAS) in hypertensive patients without stroke in Chinese population and to explore modified effect of methylenetetrahydrofolate reductase (MTHFR) C677T on their relationship. The stenosis of intracranial and extracranial arteries were evaluated in a total of 929 subjects through computerized tomographic angiography (CTA) from aortic arch to the skull base. Hcy concentration showed significantly association with both ICAS (OR: 1.105; 95% CI: 1.057-1.155) and ECAS (OR: 1.096; 95% CI: 1.047-1.146) for 1 umol/L increment in Hcy. Meanwhile, hyperhomocysteinemia (>=15 umol/L) was also displayed association with ICAS (OR: 1.587; 95% CI: 1.029-2.446) and ECAS (OR: 2.164; 95% CI: 1.392-3.364) after fully adjustment. Furthermore, in the subgroup analysis, such association remained significant only in the subjects that were younger, with normal renal function and with MTHFR 677 C allele. Our study showed the significant association of Hcy with ECAS and ICAS in asymptomatic hypertension patients. Hcy played a universal effect on the cervico cerebral atherosclerosis. Such association was modified by the MTHFR C677T genotype. PMID- 29330521 TI - RGS7 is recurrently mutated in melanoma and promotes migration and invasion of human cancer cells. AB - Analysis of 501 melanoma exomes revealed RGS7, which encodes a GTPase accelerating protein (GAP), to be a tumor-suppressor gene. RGS7 was mutated in 11% of melanomas and was found to harbor three recurrent mutations (p.R44C, p.E383K and p.R416Q). Structural modeling of the most common recurrent mutation of the three (p.R44C) predicted that it destabilizes the protein due to the loss of an H-bond and salt bridge network between the mutated position and the serine and aspartic acid residues at positions 58 as 61, respectively. We experimentally confirmed this prediction showing that the p.R44C mutant protein is indeed destabilized. We further show RGS7 p.R44C has weaker catalytic activity for its substrate Galphao, thus providing a dual mechanism for its loss of function. Both of these effects are expected to contribute to loss of function of RGS7 resulting in increased anchorage-independent growth, migration and invasion of melanoma cells. By mutating position 56 in the R44C mutant from valine to cysteine, thereby enabling the formation of a disulfide bridge between the two mutated positions, we slightly increased the catalytic activity and reinstated protein stability, leading to the rescue of RGS7's function as a tumor suppressor. Our findings identify RGS7 as a novel melanoma driver and point to the clinical relevance of using strategies to stabilize the protein and, thereby, restore its function. PMID- 29330522 TI - The RacGAP beta-Chimaerin is essential for cerebellar granule cell migration. AB - During mammalian cerebellar development, postnatal granule cell progenitors proliferate in the outer part of the External Granule Layer (EGL). Postmitotic granule progenitors migrate tangentially in the inner EGL before switching to migrate radially inward, past the Purkinje cell layer, to achieve their final position in the mature Granule Cell Layer (GCL). Here, we show that the RacGAP beta-chimaerin is expressed by a small population of late-born, premigratory granule cells. beta-chimaerin deficiency causes a subset of granule cells to become arrested in the EGL, where they differentiate and form ectopic neuronal clusters. These clusters of granule cells are able to recruit aberrantly projecting mossy fibers. Collectively, these data suggest a role for beta chimaerin as an intracellular mediator of Cerebellar Granule Cell radial migration. PMID- 29330523 TI - Closed-loop control of zebrafish behaviour in three dimensions using a robotic stimulus. AB - Robotics is continuously being integrated in animal behaviour studies to create customizable, controllable, and repeatable stimuli. However, few systems have capitalized on recent breakthroughs in computer vision and real-time control to enable a two-way interaction between the animal and the robot. Here, we present a "closed-loop control" system to investigate the behaviour of zebrafish, a popular animal model in preclinical studies. The system allows for actuating a biologically-inspired 3D-printed replica in a 3D workspace, in response to the behaviour of a zebrafish. We demonstrate the role of closed-loop control in modulating the response of zebrafish, across a range of behavioural and information-theoretic measures. Our results suggest that closed-loop control could enhance the degree of biomimicry of the replica, by increasing the attraction of live subjects and their interaction with the stimulus. Interactive experiments hold promise to advance our understanding of zebrafish, offering new means for high throughput behavioural phenotyping. PMID- 29330526 TI - Relationship among land surface temperature and LUCC, NDVI in typical karst area. AB - Land surface temperature (LST) can reflect the land surface water-heat exchange process comprehensively, which is considerably significant to the study of environmental change. However, research about LST in karst mountain areas with complex topography is scarce. Therefore, we retrieved the LST in a karst mountain area from Landsat 8 data and explored its relationships with LUCC and NDVI. The results showed that LST of the study area was noticeably affected by altitude and underlying surface type. In summer, abnormal high-temperature zones were observed in the study area, perhaps due to karst rocky desertification. LSTs among different land use types significantly differed with the highest in construction land and the lowest in woodland. The spatial distributions of NDVI and LST exhibited opposite patterns. Under the spatial combination of different land use types, the LST-NDVI feature space showed an obtuse-angled triangle shape and showed a negative linear correlation after removing water body data. In summary, the LST can be retrieved well by the atmospheric correction model from Landsat 8 data. Moreover, the LST of the karst mountain area is controlled by altitude, underlying surface type and aspect. This study provides a reference for land use planning, ecological environment restoration in karst areas. PMID- 29330524 TI - NF-kappaB inducing kinase is a therapeutic target for systemic lupus erythematosus. AB - NF-kappaB-inducing kinase (NIK) mediates non-canonical NF-kappaB signaling downstream of multiple TNF family members, including BAFF, TWEAK, CD40, and OX40, which are implicated in the pathogenesis of systemic lupus erythematosus (SLE). Here, we show that experimental lupus in NZB/W F1 mice can be treated with a highly selective and potent NIK small molecule inhibitor. Both in vitro as well as in vivo, NIK inhibition recapitulates the pharmacological effects of BAFF blockade, which is clinically efficacious in SLE. Furthermore, NIK inhibition also affects T cell parameters in the spleen and proinflammatory gene expression in the kidney, which may be attributable to inhibition of OX40 and TWEAK signaling, respectively. As a consequence, NIK inhibition results in improved survival, reduced renal pathology, and lower proteinuria scores. Collectively, our data suggest that NIK inhibition is a potential therapeutic approach for SLE. PMID- 29330525 TI - Distinct modulation of inactivation by a residue in the pore domain of voltage gated Na+ channels: mechanistic insights from recent crystal structures. AB - Inactivation of voltage-gated Na+ channels (VGSC) is essential for the regulation of cellular excitability. The molecular rearrangement underlying inactivation is thought to involve the intracellular linker between domains III and IV serving as inactivation lid, the receptor for the lid (domain III S4-S5 linker) and the pore lining S6 segements. To better understand the role of the domain IV S6 segment in inactivation we performed a cysteine scanning mutagenesis of this region in rNav 1.4 channels and screened the constructs for perturbations in the voltage dependence of steady state inactivation. This screen was performed in the background of wild-type channels and in channels carrying the mutation K1237E, which profoundly alters both permeation and gating-properties. Of all tested constructs the mutation I1581C was unique in that the mutation-induced gating changes were strongly influenced by the mutational background. This suggests that I1581 is involved in specific short-range interactions during inactivation. In recently published crystal structures VGSCs the respective amino acids homologous to I1581 appear to control a bend of the S6 segment which is critical to the gating process. Furthermore, I1581 may be involved in the transmission of the movement of the DIII voltage-sensor to the domain IV S6 segment. PMID- 29330527 TI - Aquaglyceroporin PbAQP is required for efficient progression through the liver stage of Plasmodium infection. AB - The discovery of aquaglyceroporins (AQP) has highlighted a new mechanism of membrane solute transport that may hold therapeutic potential for controlling parasitic infections, including malaria. Plasmodium parasites express a single AQP at the plasma membrane that functions as a channel for water, nutrients and waste into and out cells. We previously demonstrated that Plasmodium berghei targeted for PbAQP deletion are deficient in glycerol import and less virulent than wild-type parasites during the blood developmental stage. Here, we have examined the contribution of PbAQP to the infectivity of P. berghei in the liver. PbAQP is expressed in the sporozoite mosquito stage and is detected at low levels in intrahepatic parasites at the onset of hepatocyte infection. As the parasites progress to late hepatic stages, PbAQP transcription increases and PbAQP localizes to the plasma membrane of hepatic merozoites. Compared to wild-type parasites, PbAQP-null sporozoites exhibit a delay in blood stage infection due to slower replication in hepatocytes, resulting in retardation of merosome production. Furthermore, PbAQP disruption results in a significant reduction in erythrocyte infectivity by hepatocyte-derived merozoites. Hepatic merozoites incorporate exogenous glycerol into glycerophospholipids and PbAQP-null merozoites contain less phosphatidylcholine than wild-type merozoites, underlining the contribution of Plasmodium AQP to phospholipid syntheses. PMID- 29330528 TI - Application of Weighted Gene Co-expression Network Analysis for Data from Paired Design. AB - Investigating how genes jointly affect complex human diseases is important, yet challenging. The network approach (e.g., weighted gene co-expression network analysis (WGCNA)) is a powerful tool. However, genomic data usually contain substantial batch effects, which could mask true genomic signals. Paired design is a powerful tool that can reduce batch effects. However, it is currently unclear how to appropriately apply WGCNA to genomic data from paired design. In this paper, we modified the current WGCNA pipeline to analyse high-throughput genomic data from paired design. We illustrated the modified WGCNA pipeline by analysing the miRNA dataset provided by Shiah et al. (2014), which contains forty oral squamous cell carcinoma (OSCC) specimens and their matched non-tumourous epithelial counterparts. OSCC is the sixth most common cancer worldwide. The modified WGCNA pipeline identified two sets of novel miRNAs associated with OSCC, in addition to the existing miRNAs reported by Shiah et al. (2014). Thus, this work will be of great interest to readers of various scientific disciplines, in particular, genetic and genomic scientists as well as medical scientists working on cancer. PMID- 29330530 TI - Estimation of lean body mass by creatinine kinetics increases the prevalence of muscle wasting in peritoneal dialysis patients compared to bioimpedance. AB - Dialysis patients are at increased risk for muscle wasting, and time efficient screening tests are required for to allow for early detection. Creatinine kinetics have been advocated to estimate lean body mass (LBM) in peritoneal dialysis (PD) patients, and can be readily calculated in clinical practice from peritoneal dialysate effluent and urine collections. Bioimpedance is increasingly available, and we compared methods in 434 PD patients (55% men, 33.3% diabetics), mean age 55.2 +/- 16.2 years. LBM was lower by creatinine kinetics (47.8 +/- 16.6 kg men, 37.8 +/- 11.2 kg women) vs. bioimpedance (53.2 +/- 11.5 kg men, 39.2 +/- 7.2 kg women), p < 0.01. The prevalence of muscle wasting was much greater using creatinine kinetics (72.4% men, 52.4% women) vs. bioimpedance (55.2% men, 37.3%), p < 0.05. Estimates of LBM were much lower using creatinine kinetics compared to bioimpedance. Studies reporting the prevalence of muscle loss in PD patients will differ depending upon the method used to estimate muscle mass. PMID- 29330529 TI - The interaction network of the YidC insertase with the SecYEG translocon, SRP and the SRP receptor FtsY. AB - YidC/Oxa1/Alb3 are essential proteins that operate independently or cooperatively with the Sec machinery during membrane protein insertion in bacteria, archaea and eukaryotic organelles. Although the interaction between the bacterial SecYEG translocon and YidC has been observed in multiple studies, it is still unknown which domains of YidC are in contact with the SecYEG translocon. By in vivo and in vitro site-directed and para-formaldehyde cross-linking we identified the auxiliary transmembrane domain 1 of E. coli YidC as a major contact site for SecY and SecG. Additional SecY contacts were observed for the tightly packed globular domain and the C1 loop of YidC, which reveals that the hydrophilic cavity of YidC faces the lateral gate of SecY. Surprisingly, YidC-SecYEG contacts were only observed when YidC and SecYEG were present at about stoichiometric concentrations, suggesting that the YidC-SecYEG contact in vivo is either very transient or only observed for a very small SecYEG sub-population. This is different for the YidC-SRP and YidC-FtsY interaction, which involves the C1 loop of YidC and is efficiently observed even at sub-stoichiometric concentrations of SRP/FtsY. In summary, our data provide a first detailed view on how YidC interacts with the SecYEG translocon and the SRP-targeting machinery. PMID- 29330531 TI - Low density neutrophils (LDN) in postoperative abdominal cavity assist the peritoneal recurrence through the production of neutrophil extracellular traps (NETs). AB - Many types of immune cells appear in peritoneal cavity after abdominal surgery. In patients who underwent laparotomy due to gastric cancer, peritoneal lavages were obtained before and after surgical procedure. Cells were recovered from intermediate layer after Ficoll-Hypaque centrifugation and analyzed for phenotypes and functions, especially focused on low density neutrophils (LDN). The number of CD66b (+) LDN with mature phenotype was markedly elevated in postoperative as compared with preoperative lavages. Short term culture of the purified LDN produced many threadlike structures positive for SYTOX, nucleic acid staining, as well as histone and myeloperoxidase, suggesting the NETs formation. Human gastric cancer cells, MKN45, OCUM-1 and NUGC-4, were selectively attached on the NETs, which was totally abolished by the pretreatment of DNAse I. Intraperitoneal (IP) co-transfer of the LDN with MKN45 in nude mice strongly augments the metastasis formation on peritoneum, which was strongly suppressed by the following IP administration of DNAse I. Many NETs-like structures were detected on the surface of human omental tissue resected by gastrectomy. NETs on peritoneal surface can assist the clustering and growth of free tumor cells disseminated in abdomen. Disruption of the NETs by DNAse might be useful to prevent the peritoneal recurrence after abdominal surgery. PMID- 29330532 TI - Methanobactin from Methylosinus trichosporium OB3b inhibits N2O reduction in denitrifiers. AB - Methanotrophs synthesize methanobactin, a secondary metabolite that binds copper with an unprecedentedly high affinity. Such a strategy may provide methanotrophs a "copper monopoly" that can inhibit the activity of copper-containing enzymes of other microbes, e.g., copper-dependent N2O reductases. Here, we show that methanobactin from Methylosinus trichosporium OB3b inhibited N2O reduction in denitrifiers. When Pseudomonas stutzeri DCP-Ps1 was incubated in cocultures with M. trichosporium OB3b or with purified methanobactin from M. trichosporium OB3b, stoichiometric N2O production was observed from NO3- reduction, whereas no significant N2O accumulation was observed in cocultures with a mutant defective in methanobactin production. Copper uptake by P. stutzeri DCP-Ps1 was inhibited by the presence of purified methanobactin, leading to a significant downregulation of nosZ transcription. Similar findings were observed with three other denitrifier strains. These results suggest that in situ stimulation of methanotrophs can inadvertently increase N2O emissions, with the potential for increasing net greenhouse gas emissions. PMID- 29330533 TI - Soil contamination alters the willow root and rhizosphere metatranscriptome and the root-rhizosphere interactome. AB - Phytoremediation using willows is thought to be a sustainable alternative to traditional remediation techniques involving excavation, transport, and landfilling. However, the complexity of the interaction between the willow and its associated highly diverse microbial communities makes the optimization of phytoremediation very difficult. Here, we have sequenced the rhizosphere metatranscriptome of four willow species and the plant root metatranscriptome for two willow species growing in petroleum hydrocarbon-contaminated and non contaminated soils on a former petroleum refinery site. Significant differences in the abundance of transcripts related to different bacterial and fungal taxa were observed between willow species, mostly in contaminated soils. When comparing transcript abundance in contaminated vs. non-contaminated soil for each willow species individually, transcripts for many microbial taxa and functions were significantly more abundant in contaminated rhizosphere soil for Salix eriocephala, S. miyabeana and S. purpurea, in contrast to what was observed in the rhizosphere of S. caprea. This agrees with the previously reported sensitivity of S. caprea to contamination, and the superior tolerance of S. miyabeana and S. purpurea to soil contamination at that site. The root metatranscriptomes of two species were compared and revealed that plants transcripts are mainly influenced by willow species, while microbial transcripts mainly responded to contamination. A comparison of the rhizosphere and root metatranscriptomes in the S. purpurea species revealed a complete reorganization of the linkages between root and rhizosphere pathways when comparing willows growing in contaminated and non-contaminated soils, mainly because of large shifts in the rhizosphere metatranscriptome. PMID- 29330534 TI - When increasing population density can promote the evolution of metabolic cooperation. AB - Microbial cooperation drives ecological and epidemiological processes and is affected by the ecology and demography of populations. Population density influences the selection for cooperation, with spatial structure and the type of social dilemma, namely public-goods production or self-restraint, shaping the outcome. While existing theories predict that in spatially structured environments increasing population density can select either for or against cooperation, experimental studies with both public-goods production and self restraint systems have only ever shown that increasing population density favours cheats. We suggest that the disparity between theory and empirical studies results from experimental procedures not capturing environmental conditions predicted by existing theories to influence the outcome. Our study resolves this issue and provides the first experimental evidence that high population density can favour cooperation in spatially structured environments for both self restraint and public-goods production systems. Moreover, using a multi-trait mathematical model supported by laboratory experiments we extend this result to systems where the self-restraint and public-goods social dilemmas interact. We thus provide a systematic understanding of how the strength of interaction between the two social dilemmas and the degree of spatial structure within an environment affect selection for cooperation. These findings help to close the current gap between theory and experiments. PMID- 29330535 TI - The stoichiometry of coral-dinoflagellate symbiosis: carbon and nitrogen cycles are balanced in the recycling and double translocation system. AB - Symbioses between microalgae and animal hosts have the advantage of acquiring and sharing autotrophically produced organic carbon (C) as their energy source. However, the stoichiometry and turnover rates of biological elements in symbioses are not fully understood because of complicated metabolic interactions. We report the first comprehensive and simultaneous measurement of C and nitrogen (N) flows through coral-dinoflagellate symbiosis by using the unique approach of dual isotope labeling with 13C and 15N, in situ chasing, and isotope-mixing models. The coral autotrophy occurred with much lower C:N ratios than previously thought, and the autotrophically produced N-rich organic matter was efficiently transferred to the animal host through two different pathways. In contrast to the dynamic N cycles within the symbiosis, the N uptake from the ambient seawater was extremely limited, which enabled the coral symbiosis to sustain N with a long turnover time (1 year). These findings suggest that coral endosymbionts are not under N limitation but are actively producing organic N and driving microscale N cycles in the reef ecosystem. The present techniques could be applied to further quantify the C and N cycles in other symbiotic interactions and reveal their ecological advantages. PMID- 29330537 TI - Tracing the role of human civilization in the globalization of plant pathogens. PMID- 29330536 TI - Carbon limitation drives GC content evolution of a marine bacterium in an individual-based genome-scale model. AB - An important unanswered question in evolutionary genomics is the source of considerable variation of genomic base composition (GC content) even among organisms that share one habitat. Evolution toward GC-poor genomes has been considered a major adaptive pathway in the oligotrophic ocean, but GC-rich bacteria are also prevalent and highly successful in this environment. We quantify the contribution of multiple factors to the change of genomic GC content of Ruegeria pomeroyi DSS-3, a representative and GC-rich member in the globally abundant Roseobacter clade, using an agent-based model. The model simulates 2 * 108 cells, which allows random genetic drift to act in a realistic manner. Each cell has a whole genome subject to base-substitution mutation and recombination, which affect the carbon and nitrogen requirements of DNA and protein pools. Nonsynonymous changes can be functionally deleterious. Together, these factors affect the growth and fitness. Simulations show that experimentally determined mutation bias toward GC is not sufficient to build the GC-rich genome of DSS-3. While nitrogen availability has been repeatedly hypothesized to drive the evolution of GC content in marine bacterioplankton, our model instead predicts that DSS-3 and its ancestors have been evolving in environments primarily limited by carbon. PMID- 29330538 TI - Flux of the biogenic volatiles isoprene and dimethyl sulfide from an oligotrophic lake. AB - Biogenic volatile organic compounds (BVOCs) affect atmospheric chemistry, climate and regional air quality in terrestrial and marine atmospheres. Although isoprene is a major BVOC produced in vascular plants, and marine phototrophs release dimethyl sulfide (DMS), lakes have been widely ignored for their production. Here we demonstrate that oligotrophic Lake Constance, a model for north temperate deep lakes, emits both volatiles to the atmosphere. Depth profiles indicated that highest concentrations of isoprene and DMS were associated with the chlorophyll maximum, suggesting that their production is closely linked to phototrophic processes. Significant correlations of the concentration patterns with taxon specific fluorescence data, and measurements from algal cultures confirmed the phototrophic production of isoprene and DMS. Diurnal fluctuations in lake isoprene suggested an unrecognised physiological role in environmental acclimation similar to the antioxidant function of isoprene that has been suggested for marine biota. Flux estimations demonstrated that lakes are a currently undocumented source of DMS and isoprene to the atmosphere. Lakes may be of increasing importance for their contribution of isoprene and DMS to the atmosphere in the arctic zone where lake area coverage is high but terrestrial sources of BVOCs are small. PMID- 29330540 TI - Author Correction: REST regulates the cell cycle for cardiac development and regeneration. AB - The original version of this Article contained an error in the spelling of the author Jianyun Yan, which was incorrectly given as Jiangyun Yan. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29330539 TI - Missing Value Imputation Approach for Mass Spectrometry-based Metabolomics Data. AB - Missing values exist widely in mass-spectrometry (MS) based metabolomics data. Various methods have been applied for handling missing values, but the selection can significantly affect following data analyses. Typically, there are three types of missing values, missing not at random (MNAR), missing at random (MAR), and missing completely at random (MCAR). Our study comprehensively compared eight imputation methods (zero, half minimum (HM), mean, median, random forest (RF), singular value decomposition (SVD), k-nearest neighbors (kNN), and quantile regression imputation of left-censored data (QRILC)) for different types of missing values using four metabolomics datasets. Normalized root mean squared error (NRMSE) and NRMSE-based sum of ranks (SOR) were applied to evaluate imputation accuracy. Principal component analysis (PCA)/partial least squares (PLS)-Procrustes analysis were used to evaluate the overall sample distribution. Student's t-test followed by correlation analysis was conducted to evaluate the effects on univariate statistics. Our findings demonstrated that RF performed the best for MCAR/MAR and QRILC was the favored one for left-censored MNAR. Finally, we proposed a comprehensive strategy and developed a public-accessible web-tool for the application of missing value imputation in metabolomics ( https://metabolomics.cc.hawaii.edu/software/MetImp/ ). PMID- 29330541 TI - 19F-perfluorocarbon-labeled human peripheral blood mononuclear cells can be detected in vivo using clinical MRI parameters in a therapeutic cell setting. AB - A 19Fluorine (19F) perfluorocarbon cell labeling agent, when employed with an appropriate cellular MRI protocol, allows for in vivo cell tracking. 19F cellular MRI can be used to non-invasively assess the location and persistence of cell based cancer vaccines and other cell-based therapies. This study was designed to determine the feasibility of labeling and tracking peripheral blood mononuclear cells (PBMC), a heterogeneous cell population. Under GMP-compliant conditions human PBMC were labeled with a 19F-based MRI cell-labeling agent in a manner safe for autologous re-injection. Greater than 99% of PBMC labeled with the 19F cell labeling agent without affecting functionality or affecting viability. The 19F labeled PBMC were detected in vivo in a mouse model at the injection site and in a draining lymph node. A clinical cellular MR protocol was optimized for the detection of PBMC injected both at the surface of a porcine shank and at a depth of 1.2 cm, equivalent to depth of a human lymph node, using a dual 1H/19F dual switchable surface radio frequency coil. This study demonstrates it is feasible to label and track 19F-labeled PBMC using clinical MRI protocols. Thus, 19F cellular MRI represents a non-invasive imaging technique suitable to assess the effectiveness of cell-based cancer vaccines. PMID- 29330542 TI - Regulation of metabolism in Escherichia coli during growth on mixtures of the non glucose sugars: arabinose, lactose, and xylose. AB - Catabolite repression refers to the process where the metabolism of one sugar represses the genes involved in metabolizing another sugar. While glucose provides the canonical example, many other sugars are also known to induce catabolite repression. However, less is known about the mechanism for catabolite repression by these non-glucose sugars. In this work, we investigated the mechanism of catabolite repression in the bacterium Escherichia coli during growth on lactose, L-arabinose, and D-xylose. The metabolism of these sugars is regulated in a hierarchical manner, where lactose is the preferred sugar, followed by L-arabinose, and then D-xylose. Previously, the preferential utilization of L-arabinose over D-xylose was found to result from transcriptional crosstalk. However, others have proposed that cAMP governs the hierarchical regulation of many non-glucose sugars. We investigated whether lactose-induced repression of L-arabinose and D-xylose gene expression is due to transcriptional crosstalk or cAMP. Our results demonstrate that it is due to cAMP and not transcriptional crosstalk. In addition, we found that repression is reciprocal, where both L-arabinose and D-xylose also repress the lactose gene expression, albeit to a lesser extent and also through a mechanism involving cAMP. Collectively, the results further our understanding of metabolism during growth on multiple sugars. PMID- 29330544 TI - Perceptions of legislation relating to the sharing of genomic biobank results with donors-a survey of BBMRI-ERIC biobanks. AB - Biobanks accumulate huge amounts of research findings, including participants' genomic data. Increasingly this leads to biobanks receiving research results that could be of clinical significance to biobank participants. The EU Horizon 2020 Project 'Genetics Clinic of the Future' surveyed European biobanks' perceptions of the legal and regulatory requirements for communicating individual research results to donors. The goal was to gain background knowledge for possible future guidelines, especially relating to the consent process. The Survey was implemented using a web-based Webropol tool. The questionnaire was sent at the end of 2015 to 351 European biobanks in 13 countries that are members of BBMRI ERIC (Biobanking and Biomolecular Resources Research Infrastructure-European Research Infrastructure Consortium). Seventy-two biobanks responded to the survey, representing each of the 13 BBMRI Member States. Respondents were mainly individuals responsible for the governance of biobanks. The replies indicate that the majority of the respondents thought that their national legislation allowed them to contact participants to communicate results, and that research participants had the right to request their results. However, respondents' understanding of their national legislation varied even within member states. Our results indicate that legislation applied to biobanks in many countries may be scattered and difficult to interpret. In BBMRI-ERIC, there is an ongoing discussion about the need for European recommendations on sharing genomic biobank results with donors, which may pave the way for more coherent global guidelines. Our results form a basis for this work. PMID- 29330543 TI - CUGC for Duchenne muscular dystrophy (DMD). PMID- 29330545 TI - De novo BK channel variant causes epilepsy by affecting voltage gating but not Ca2+ sensitivity. AB - Epilepsy is one of the most common neurological diseases and it causes profound morbidity and mortality. We identified the first de novo variant in KCNMA1 (c.2984 A > G (p.(N995S)))-encoding the BK channel-that causes epilepsy, but not paroxysmal dyskinesia, in two independent families. The c.2984 A > G (p.(N995S)) variant markedly increased the macroscopic potassium current by increasing both the channel open probability and channel open dwell time. The c.2984 A > G (p.(N995S)) variant did not affect the calcium sensitivity of the channel. We also identified three other variants of unknown significance (c.1554 G > T (p.(K518N)), c.1967A > C (p.(E656A)), and c.3476 A > G (p.(N1159S))) in three separate patients with divergent epileptic phenotypes. However, these variants did not affect the BK potassium current, and are therefore unlikely to be disease causing. These results demonstrate that BK channel variants can cause epilepsy without paroxysmal dyskinesia. The underlying molecular mechanism can be increased activation of the BK channel by increased sensitivity to the voltage dependent activation without affecting the sensitivity to the calcium-dependent activation. Our data suggest that the BK channel may represent a drug target for the treatment of epilepsy. Our data highlight the importance of functional electrophysiological studies of BK channel variants in distinguishing whether a genomic variant of unknown significance is a disease-causing variant or a benign variant. PMID- 29330546 TI - Older mothers and increased impact of prenatal screening: stable livebirth prevalence of trisomy 21 in the Netherlands for the period 2000-2013. AB - In the Netherlands, there is no registry system regarding the livebirth prevalence of trisomy 21 (T21). In 2007, a national screening programme was introduced for all pregnant women, which may have changed the livebirth prevalence of T21. The aim of this study is to analyse trends in factors that influence livebirth prevalence of T21 and to estimate the livebirth prevalence of T21 for the period of 2000-2013. National data sets were used on the following: (1) livebirths according to maternal age and (2) prenatal testing and termination of pregnancy (ToP) following diagnosis of T21. These data are combined in a model that uses maternal age-specific risk on T21 and correction factors for natural foetal loss to assess livebirth prevalence of T21. The proportion of mothers aged >= 36 years has increased from 12.2% in 2000 to 16.6% in 2009, to gradually decrease afterwards to 15.2% in 2013. The number of invasive tests performed adjusted for total livebirths decreased (5.9% in 2000 vs. 3.2% in 2013) with 0.18% a year (95% CI: -0.21 to -0.15; p < 0.001). Following invasive testing, a higher proportion of foetuses was diagnosed with T21 (1.6% in 2000 vs. 4.8% in 2013) with a significant increase of 0.22% a year (95% CI: 0.18-0.26; p < 0.001). The proportion of ToP subsequent to T21 diagnosis was on average 85.7%, with no clear time trend. This resulted in a stable T21 livebirth prevalence of 13.6 per 10,000 livebirths (regression coefficient -0.025 (95% CI: -0.126 to 0.77; p = 0.60). PMID- 29330547 TI - Recessive loss of function PIGN alleles, including an intragenic deletion with founder effect in La Reunion Island, in patients with Fryns syndrome. AB - Fryns syndrome (FS) is a multiple malformations syndrome with major features of congenital diaphragmatic hernia, pulmonary hypoplasia, craniofacial dysmorphic features, distal digit hypoplasia, and a range of other lower frequency malformations. FS is typically lethal in the fetal or neonatal period. Inheritance is presumed autosomal recessive. Although no major genetic cause has been identified for FS, biallelic truncating variants in PIGN, encoding a component of the glycosylphosphatidylinositol (GPI)-anchor biosynthesis pathway, have been identified in a limited number of cases with a phenotype compatible with FS. Biallelic variants in PIGN, typically missense or compound missense with truncating, also cause multiple congenital anomalies-hypotonia-seizures syndrome 1 (MCAHS1). Here we report six further patients with FS with or without congenital diaphragmatic hernia and recessive loss of function PIGN alleles, including an intragenic deletion with a likely founder effect in La Reunion and other Indian Ocean islands. Our results support the hypothesis that a spectrum of phenotypic severity is associated with recessive PIGN variants, ranging from FS at the extreme end, caused by complete loss of function, to MCAHS1, in which some residual PIGN function may remain. Our data add FS resulting from PIGN variants to the catalog of inherited GPI deficiencies caused by the disruption of the GPI anchor biosynthesis pathway. PMID- 29330549 TI - Excellent room temperature deformability in high strain rate regimes of magnesium alloy. AB - Magnesium and its alloys have the lowest density among structural metallic materials; thus, this light-weight metal has great potential for reducing the weight, for example, of vehicles and trains. However, due to its crystal structure, deformability is poor; in particular, under compressive stress. In this study, we modified magnesium with bismuth as an alloying element, which has the characteristics of being likely to form precipitates instead of grain boundary segregation. The Mg-Bi binary alloy showed excellent deformability and high absorption of energy in high-strain rate regimes at room temperature via contribution of grain boundary sliding. These properties, which are closely comparable to those of conventional middle-strength aluminum alloys (Al-Mg and Al Mg-Si series alloys), have never been observed before in magnesium alloys. The development of such properties opens the door for not only academic but also industrial research in magnesium. PMID- 29330548 TI - SHOX haploinsufficiency presenting with isolated short long bones in the second and third trimester. AB - Haploinsufficiency of the transcription factor short stature homeobox (SHOX) manifests as a spectrum of clinical phenotypes, ranging from disproportionate short stature and Madelung deformity to isolated short stature. Here, we describe five infants with molecularly confirmed diagnoses of SHOX haploinsufficiency who presented in utero with short long bones during routine antenatal scanning from as early as 19 weeks gestation. Other foetal growth parameters were normal. The molecular basis of SHOX haploinsufficiency was distinct in each case. In four cases, SHOX haploinsufficiency was inherited from a previously undiagnosed parent. In our de novo case, SHOX haploinsufficiency reflected the formation of a derivative sex chromosome during paternal meiosis. Final adult height in the SHOX deficient parents ranged from -1.9 to -1.2 SDS. All affected parents had disproportionately short limbs and two affected mothers had bilateral Madelung deformity. To our knowledge, SHOX haploinsufficiency has not previously been reported to present in utero. Our experience illustrates that SHOX deficiency should form part of the differential diagnosis of foetal short long bones and suggests a low threshold for genetic testing. This should be particularly targeted at, but not limited to, families with a history of features suggestive of SHOX deficiency. Data on the postnatal growth of our index cases is presented which demonstrates that antenatal presentation of SHOX haploinsufficiency is not indicative of severe postnatal growth restriction. Early identification of SHOX deficiency will enable accurate genetic counselling reflecting a good postnatal outcome and facilitate optimal initiation of growth hormone therapy. PMID- 29330553 TI - Remote Microphone System Use at Home: Impact on Caregiver Talk. AB - Purpose: The purpose of this study was to investigate the effects of home use of a remote microphone system (RMS) on the spoken language production of caregivers with young children who have hearing loss. Method: Language Environment Analysis recorders were used with 10 families during 2 consecutive weekends (RMS weekend and No-RMS weekend). The amount of talk from a single caregiver that could be made accessible to children with hearing loss when using an RMS was estimated using Language Environment Analysis software. The total amount of caregiver talk (close and far talk) was also compared across both weekends. In addition, caregivers' perceptions of RMS use were gathered. Results: Children, with the use of RMSs, could potentially have access to approximately 42% more words per day. In addition, although caregivers produced an equivalent number of words on both weekends, they tended to talk more from a distance when using the RMS than when not. Finally, caregivers reported positive perceived communication benefits of RMS use. Conclusions: Findings from this investigation suggest that children with hearing loss have increased access to caregiver talk when using an RMS in the home environment. Clinical implications and future directions for research are discussed. PMID- 29330551 TI - Autapses promote synchronization in neuronal networks. AB - Neurological disorders such as epileptic seizures are believed to be caused by neuronal synchrony. However, to ascertain the causal role of neuronal synchronization in such diseases through the traditional approach of electrophysiological data analysis remains a controversial, challenging, and outstanding problem. We offer an alternative principle to assess the physiological role of neuronal synchrony based on identifying structural anomalies in the underlying network and studying their impacts on the collective dynamics. In particular, we focus on autapses - time delayed self-feedback links that exist on a small fraction of neurons in the network, and investigate their impacts on network synchronization through a detailed stability analysis. Our main finding is that the proper placement of a small number of autapses in the network can promote synchronization significantly, providing the computational and theoretical bases for hypothesizing a high degree of synchrony in real neuronal networks with autapses. Our result that autapses, the shortest possible links in any network, can effectively modulate the collective dynamics provides also a viable strategy for optimal control of complex network dynamics at minimal cost. PMID- 29330552 TI - Dosimetry Prediction for Clinical Translation of 64Cu-Pembrolizumab ImmunoPET Targeting Human PD-1 Expression. AB - The immune checkpoint programmed death 1 receptor (PD-1) expressed on some tumor infiltrating lymphocytes, and its ligand (PD-L1) expressed on tumor cells, enable cancers to evade the immune system. Blocking PD-1 with the monoclonal antibody pembrolizumab is a promising immunotherapy strategy. Thus, noninvasively quantifying the presence of PD-1 expression in the tumor microenvironment prior to initiation of immune checkpoint blockade may identify the patients likely to respond to therapy. We have developed a 64Cu-pembrolizumab radiotracer and evaluated human dosimetry. The tracer was utilized to image hPD-1 levels in two subcutaneous mouse models: (a) 293 T/hPD-1 cells xenografted into NOD-scid IL 2Rgammanull mice (NSG/293 T/hPD-1) and (b) human peripheral blood mononuclear cells engrafted into NSG bearing A375 human melanoma tumors (hNSG/A375). In each mouse model two cohorts were evaluated (hPD-1 blockade with pembrolizumab [blk] and non-blocked [nblk]), for a total of four groups (n = 3-5/group). The xenograft-to-muscle ratio in the NSG/293 T/hPD-1 model at 24 h was significantly increased in the nblk group (7.0 +/- 0.5) compared to the blk group (3.4 +/- 0.9), p = 0.01. The radiotracer dosimetry evaluation (PET/CT ROI-based and ex vivo) in the hNSG/A375 model revealed the highest radiation burden to the liver. In summary, we validated the 64Cu-pembrolizumab tracer's specific hPD-1 receptor targeting and predicted human dosimetry. PMID- 29330550 TI - A Metabolomics Pilot Study on Desmoid Tumors and Novel Drug Candidates. AB - Desmoid tumors (aggressive fibromatosis) are locally invasive soft tissue tumors that lack the ability to metastasize. There are no directed therapies or standard treatment plan, and chemotherapeutics, radiation, and surgery often have temporary effects. The majority of desmoid tumors are related to T41A and S45F mutations of the beta-catenin encoding gene (CTNNB1). Using broad spectrum metabolomics, differences were investigated between paired normal fibroblast and desmoid tumor cells from affected patients. There were differences identified, also, in the metabolomics profiles associated with the two beta-catenin mutations, T41A and S45F. Ongoing drug screening has identified currently available compounds which inhibited desmoid tumor cellular growth by more than 50% but did not affect normal fibroblast proliferation. Two drugs were investigated in this study, and Dasatinib and FAK Inhibitor 14 treatments resulted in unique metabolomics profiles for the normal fibroblast and desmoid tumor cells, in addition to the T41A and S45F. The biochemical pathways that differentiated the cell lines were aminoacyl-tRNA biosynthesis in mitochondria and cytoplasm and signal transduction amino acid-dependent mTORC1 activation. This study provides preliminary understanding of the metabolic differences of paired normal and desmoid tumors cells, their response to desmoid tumor therapeutics, and new pathways to target for therapy. PMID- 29330554 TI - Accuracy of a Screening Tool for Early Identification of Language Impairment. AB - Purpose: A screening tool called the VTO Language Screening Instrument (VTO-LSI) was developed to enable more uniform and earlier detection of language impairment. This report, consisting of 2 retrospective studies, focuses on the effects of using the VTO-LSI compared to regular detection procedures. Method: Study 1 retrospectively compared VTO-LSI with regular detection procedures. Outcome measure was the detection rate of language impairment among 24-month-old children. Data were retrieved from medical records of children attending a youth health care center. Study 2 retrospectively compared the effects of VTO-LSI and regular detection procedures on the age at referral for diagnostic investigations and the influence of sex. Data were retrieved from medical records from the speech and hearing center and analyzed with multivariate analysis of variance. Results: With the VTO-LSI, significantly more cases with language impairment were identified compared with the regular detection procedure (2.4% vs. 0.4%). In regions where the VTO-LSI was used, girls were almost 2 years younger, and boys were 1 year younger when referred to diagnostic investigations than in regions with regular detection procedures. Conclusion: The VTO-LSI was more effective than regular detection procedures. PMID- 29330555 TI - Performance of Low-Income Dual Language Learners Attending English-Only Schools on the Clinical Evaluation of Language Fundamentals-Fourth Edition, Spanish. AB - Purpose: The aim of this study was to examine the performance of a group of Spanish-speaking, dual language learners (DLLs) who were attending English-only schools and came from low-income and low-parental education backgrounds on the Clinical Evaluation of Language Fundamentals-Fourth Edition, Spanish (CELF-4S; Semel, Wiig, & Secord, 2006). Method: Spanish-speaking DLLs (N = 656), ages 5;0 (years;months) to 7;11, were tested for language impairment (LI) using the core language score of the CELF-4S and the English Structured Photographic Expressive Language Test (Dawson, Stout, & Eyer, 2003). A subsample (n = 299) was additionally tested using a Spanish language sample analysis and a newly developed Spanish morphosyntactic measure, for identification of children with LI and to conduct a receiver operating characteristics curve analysis. Results: Over 50% of the sample scored more than 1 SD below the mean on the core language score. In our subsample, the sensitivity of the CELF-4S was 94%, and specificity was 65%, using a cutoff score of 85 as suggested in the manual. Using an empirically derived cutoff score of 78, the sensitivity was 86%, and the specificity was 80%. Conclusions: Results suggest that the CELF-4S overidentifies low-income Spanish-English DLLs attending English-only schools as presenting with LI. For this sample, 1 in every 3 Latino children from low socioeconomic status was incorrectly identified with LI. Clinicians should be cautious when using the CELF-4S to evaluate low-income Spanish-English DLLs and ensure that they have converging evidence before making diagnostic decisions. PMID- 29330556 TI - Evolution of the Phosphatidylcholine Biosynthesis Pathways in Green Algae: Combinatorial Diversity of Methyltransferases. AB - Phosphatidylcholine (PC) is one of the most common phospholipids in eukaryotes, although some green algae such as Chlamydomonas reinhardtii are known to lack PC. Recently, we detected PC in four species in the genus Chlamydomonas: C. applanata NIES-2202, C. asymmetrica NIES-2207, C. debaryana NIES-2212, and C. sphaeroides NIES-2242. To reveal the PC biosynthesis pathways in green algae and the evolutionary scenario involved in their diversity, we analyzed the PC biosynthesis genes in these four algae using draft genome sequences. Homology searches suggested that PC in these species is synthesized by phosphoethanolamine N-methyltransferase (PEAMT) and/or phosphatidylethanolamine-N-methyltransferase (PEMT), both of which are absent in C. reinhardtii. Recombinant PEAMTs from these algae showed methyltransferase activity for phosphoethanolamine but not for monomethyl phosphoethanolamine in vitro, in contrast to land plant PEAMT, which catalyzes the three methylations from phosphoethanolamine to phosphocholine. This suggested an involvement of other methyltransferases in PC biosynthesis. Here, we characterized the putative phospholipid-N-methyltransferase (PLMT) genes of these species by genetic and phylogenetic analysis. Complementation assays using a PC biosynthesis-deficient yeast suggested that the PLMTs of these algae can synthesize PC from phosphatidylethanolamine. These results indicated that the PC biosynthesis pathways in green algae differ from those of land plants, although the enzymes involved are homologous. Phylogenetic analysis suggested that the PEAMTs and PLMTs in these algae were inherited from the common ancestor of green algae. The absence of PC biosynthesis in many Chlamydomonas species is likely a result of parallel losses of PEAMT and PLMT in this genus. PMID- 29330557 TI - Linear doggybone DNA vaccine induces similar immunological responses to conventional plasmid DNA independently of immune recognition by TLR9 in a pre clinical model. AB - Vaccination with DNA that encodes cancer antigens is a simple and convenient way to raise immunity against cancer and has already shown promise in the clinical setting. Conventional plasmid DNA is commonly used which together with the encoded antigen also includes bacterial immunostimulatory CpG motifs to target the DNA sensor Toll-like receptor 9. Recently DNA vaccines using doggybone DNA (dbDNATM), have been developed without the use of bacteria. The cell-free process relies on the use of Phi29 DNA polymerase to amplify the template followed by protelomerase TelN to complete individual closed linear DNA. The resulting DNA contains the required antigenic sequence, a promoter and a poly A tail but lacks bacterial sequences such as an antibiotic resistance gene, prompting the question of immunogenicity. Here we compared the ability of doggybone DNA vaccine with plasmid DNA vaccine to induce adaptive immunity using clinically relevant oncotargets E6 and E7 from HPV. We demonstrate that despite the inability to trigger TLR9, doggybone DNA was able to induce similar levels of cellular and humoral immunity as plasmid DNA, with suppression of established TC-1 tumours. PMID- 29330558 TI - Variant of a persistent hypoglossal artery supplying only the posterior inferior cerebellar artery diagnosed by magnetic resonance angiography: a case report. AB - Very rarely, a persistent hypoglossal artery supplies only the posterior inferior cerebellar artery without connection to the basilar artery. Few cases diagnosed by catheter angiography have been reported. We diagnosed a case using magnetic resonance angiography. PMID- 29330559 TI - A post-translational balancing act: the good and the bad of SUMOylation in pancreatic islets. AB - Post-translational modification of proteins contributes to the control of cell function and survival. The balance of these in insulin-producing pancreatic beta cells is important for the maintenance of glucose homeostasis. Protection from the damaging effects of reactive oxygen species is required for beta cell survival, but if this happens at the expense of insulin secretory function then the ability of islets to respond to changing metabolic conditions may be compromised. In this issue of Diabetologia, He et al ( https://doi.org/10.1007/s00125-017-4523-9 ) show that post-translational attachment of small ubiquitin-like modifier (SUMO) to target lysine residues (SUMOylation) strikes an important balance between the protection of beta cells from oxidative stress and the maintenance of insulin secretory function. They show that SUMOylation is required to stabilise nuclear factor erythroid 2-related factor 2 (NRF2) and increase antioxidant gene expression. Decreasing SUMOylation in beta cells impairs their antioxidant capacity, causes cell death, hyperglycaemia, and increased sensitivity to streptozotocin-induced diabetes, while increasing SUMOylation is protective. However, this protection from overt diabetes occurs in concert with glucose intolerance due to impaired beta cell function. A possible role for SUMOylation as a key factor balancing beta cell protection vs beta cell responsiveness to metabolic cues is discussed in this Commentary. PMID- 29330562 TI - Influence of genetic polymorphisms of IL23R, STAT3, IL12B, and STAT4 on the risk of aplastic anemia and the effect of immunosuppressive therapy. AB - Studies have suggested that IL-23/STAT3 and IL-12/STAT4 signaling pathways associate with aplastic anemia (AA) occurrence. Polymorphisms in pathway-related genes may contribute to AA risk. In the current study, we investigated the association between polymorphisms in genes of IL23R, STAT3, IL12B, and STAT4 and occurrence, severity, and immunosuppressive outcome of AA in the Han population in southwest China. In the current 164 AA cases and 211 controls study, we found T allele and TT genotype of rs7574865 were more frequent in the cases than that in the controls. In the additive model, individual carrying rs7574865 T allele demonstrated a 37% (OR (95% CI) = 1.37 (1.02-1.85), Pper = 0.036) increased AA risk. In the recessive model, carrier with rs7574865 TT genotype showed a 2.08 fold increased AA risk (OR (95% CI) = 2.08 (1.14-3.70), Pper = 0.017). Additionally, we showed that G allele and GG genotype of rs11209032 were more frequent in the 88 non-severe AA cases than that in the 76 severe AA ones. Our study also found G allele and GG genotype of rs11209032, and GG-genotype of rs744166 associated with the immunosuppressive therapy outcome in AA patients. Current study results support that functional STAT4 (rs7574865), IL23R (rs11209032), and STAT3 (rs744166) variants may associate with occurrence, severity, and immunosuppressive outcome of AA in the Han population in southwest China. PMID- 29330563 TI - Serious concerns on the inability of FDG-PET in excluding residual viable lymphoma. PMID- 29330560 TI - Altered Bone Remodeling in Psoriatic Disease: New Insights and Future Directions. AB - Psoriatic arthritis (PsA) is an inflammatory rheumatic disorder that occurs in patients with psoriasis and predominantly affects musculoskeletal structures, skin, and nails. The etiology of PsA is not well understood but evidence supports an interplay of genetic, immunologic, and environmental factors which promote pathological bone remodeling and joint damage in PsA. Localized and systemic bone loss due to increased activity of osteoclasts is well established in PsA based on animal models and translational studies. In contrast, the mechanisms responsible for pathological bone remodeling in PsA remain enigmatic although new candidate molecules and pathways have been identified. Recent reports have revealed novel findings related to bone erosion and pathologic bone formation in PsA. Many associated risk factors and contributing molecular mechanisms have also been identified. In this review, we discuss new developments in the field, point out unresolved questions regarding the pathogenetic origins of the wide array of bone phenotypes in PsA, and discuss new directions for investigation. PMID- 29330561 TI - Salvage therapy post pomalidomide-based regimen in relapsed/refractory myeloma. AB - The combination of pomalidomide and low-dose dexamethasone (Pom-Dex) has proved effective and safe in patients with end-stage relapsed/refractory multiple myeloma (RRMM), otherwise characterized by a very poor outcome. MM remains an incurable disease with unavoidable relapses, and the outcome after pomalidomide is still dismal. However, some patients demonstrate prolonged survival even beyond pomalidomide therapy.We sought to analyze the treatment of RRMM patients following Pom-Dex therapy and the response and survival after this next treatment line.We studied 134 patients treated with Pom-Dex until progression across two IFM studies. Seventy percent of these patients received further therapy after Pom Dex. Among the treated patients, one third responded and one third maintained stable disease. The median OS for treated patients was 12 months (6.5;17), with 22 and 12.5% of patients surviving beyond 2 and 3 years, respectively. The factors associated with a better outcome were exposure to a triplet-based regimen containing a novel agent, response to therapy, absence of adverse cytogenetic, and a longer time from diagnosis to post pomalidomide therapy.This study suggests that patients relapsing after Pom-Dex therapy can still benefit from a further line of treatment. A subset of these treated patients even displayed a prolonged OS, while the prognosis remained very poor without treatment. An active approach could therefore be recommended even in this adverse situation, however guided by the patients' prognosis factors. PMID- 29330571 TI - Impact of motor task execution on an individual's ability to mirror forearm positions. AB - This work is motivated by our goal of determining why individuals with stroke are impaired when locating their arms in space. We assessed the ability of individuals without neurological impairments to mirror their forearms during various motor tasks so that we could identify baseline performance in an unimpaired population. Nine right-hand dominant participants without neurological impairments mirrored forearm positions bi-directionally (i.e., right forearm mirrors left forearm, vice versa) for three motor tasks (i.e., passive, passive/active, and active) and two position identification modes (i.e., mirroring to a position stored in working memory versus concurrently felt by the opposite arm). During each trial, the participant's reference forearm moved to a flexion ([Formula: see text]) or extension ([Formula: see text]) position, and then, their opposite forearm mirrored the position of their reference forearm. The main finding across all tested conditions is that participants mirrored forearm positions with an average magnitude of error [Formula: see text]. When controlling their forearms' movements (active motor task), participants mirrored forearm positions more accurately by up to, on average, [Formula: see text] at the flexion location than at the extension location. Moreover, participants mirrored forearm positions more accurately by up to, on average, [Formula: see text] when their forearms were moved for them rather than when they controlled their forearms' movements. Task directionality and position identification mode did not significantly affect participant arm mirroring accuracy. These findings are relevant for interpreting in future work the reason why impairments occur, on similar tasks, in individuals with altered motor commands, working memory, and arm impedance, e.g., post-stroke hemiparesis. PMID- 29330570 TI - Open-door laminoplasty : What can the unilateral approach offer? AB - OBJECTIVE: Multilevel posterior decompression of subaxial cervical spinal canal stenosis through a less-invasive unilateral approach. INDICATIONS: Degenerative cervical myelopathy due to multilevel subaxial spinal canal stenosis. CONTRAINDICATIONS: Cervical kyphosis or instability, bilateral radiculopathy due to foraminal stenosis, involvement of C2 or C7. SURGICAL TECHNIQUE: Unilateral subaxial approach with detachment of muscles only on one side. The ipsilateral laminae C6 to C3 are cut at the laminofacet junction and opened up. The loss of resistance is usually due to a greenstick fracture in the proximity of the contralateral laminofacet junction. The opened laminae are fixed with Z-shaped thin titanium plates. If necessary, the laminoplasty can be combined with a unilateral fixation and fusion by the same approach. POSTOPERATIVE MANAGEMENT: Early mobilization 4-6 h postoperatively. No orthosis necessary. RESULTS: A total of 131 patients (77 men, mean age 67 years) with a multilevel cervical spondylotic myelopathy (CSM) underwent surgery using a posterior approach. In 52 patients (40%), a unilateral approach was performed (laminoplasty: n = 30; laminoplasty/fusion: n = 22). In this group, the mean operation time was less compared with two other techniques (unilateral approach: 110 min; laminectomy/fusion: 150 min; 360 degrees approach: 210 min). The postoperative European myelopathy score (EMS) improved from 12.8 to 15.2. The overall complication rate was 17% (unilateral approach: 9%; laminectomy/fusion: 18%; 360 degrees approach: 27%). PMID- 29330572 TI - Effects of whole-body vibration on muscle strength, bone mineral content and density, and balance and body composition of children and adolescents with Down syndrome: a systematic review. AB - The aim of this study is to verify the effects of whole-body vibration (WBV) training on the muscle strength of children and adolescents with Down syndrome. We searched MEDLINE, Cochrane, SciELO, Lilacs and PUBMED databases and included manual searches to identify randomised controlled trials to investigate the effects of WBV on the structure and body function of children and adolescents with Down syndrome. Two reviewers independently selected the studies and performed statistical analysis. In total, five studies with 171 patients that compared WBV with exercise and/or control were included. Two studies demonstrated a significant difference between the muscle strength of children and adolescents with Down syndrome who received WBV training and that of those who did not receive the intervention. The studies included in this systematic review showed that WBV training has positive effects on bone mineral density (BMD), body composition and balance. Results of this study showed that WBV training improves muscle strength, BMD, body composition and balance of children and adolescents with Down syndrome, and a more in-depth analysis of its effects on other variables in this population is required, as well as of parameters to be used. PMID- 29330573 TI - Tocotrienol supplementation suppressed bone resorption and oxidative stress in postmenopausal osteopenic women: a 12-week randomized double-blinded placebo controlled trial. AB - : Tocotrienols have shown bone-protective effect in animals. This study showed that a 12-week tocotrienol supplementation decreased concentrations of bone resorption biomarker and bone remodeling regulators via suppressing oxidative stress in postmenopausal osteopenic women. INTRODUCTION: Tocotrienols (TT) have been shown to benefit bone health in ovariectomized animals, a model of postmenopausal women. The purpose of this study was to evaluate the effect of 12 week TT supplementation on bone markers (serum bone-specific alkaline phosphatase (BALP), urine N-terminal telopeptide (NTX), serum soluble receptor activator of nuclear factor-kappaB ligand (sRANKL), and serum osteoprotegerin (OPG)), urine calcium, and an oxidative stress biomarker (8-hydroxy-2'-deoxyguanosine (8-OHdG)) in postmenopausal women with osteopenia. METHODS: Eighty-nine postmenopausal osteopenic women (59.7 +/- 6.8 year, BMI 28.7 +/- 5.7 kg/m2) were randomly assigned to three groups: (1) placebo (430 mg olive oil/day), (2) low TT (430 mg TT/day, 70% purity), and (3) high TT (860 mg TT/day, 70% purity). TT, an extract from annatto seed with 70% purity, consisted of 90% delta-TT and 10% gamma-TT. Overnight fasting blood and urine samples were collected at baseline, 6, and 12 weeks for biomarker analyses. Eighty-seven subjects completed the 12-week study. RESULTS: Relative to the placebo group, there were marginal decreases in serum BALP level in the TT-supplemented groups over the 12-week study period. Significant decreases in urine NTX levels, serum sRANKL, sRANKL/OPG ratio, and urine 8-OHdG concentrations and a significant increase in BALP/NTX ratio due to TT supplementation were observed. TT supplementation did not affect serum OPG concentrations or urine calcium levels throughout the study period. There were no significant differences in NTX level, BALP/NTX ratio, sRANKL level, and sRANKL/OPG ratio between low TT and high TT groups. CONCLUSIONS: Twelve-week annatto-extracted TT supplementation decreased bone resorption and improved bone turnover rate via suppressing bone remodeling regulators in postmenopausal women with osteopenia. Such osteoprotective TT's effects may be, in part, mediated by an inhibition of oxidative stress. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02058420. TITLE: Tocotrienols and bone health of postmenopausal women. PMID- 29330574 TI - Ectomycorrhizal fungal communities in alpine relict forests of Pinus pumila on Mt. Norikura, Japan. AB - Ectomycorrhizal (ECM) symbioses are indispensable for the establishment of host trees, yet available information of ECM symbiosis in alpine forests is scarce. Pinus pumila is a typical ice age relict tree species in Japan and often forms monodominant dwarf vegetation above the tree line in mountains. We studied ECM fungi colonizing P. pumila on Mt. Norikura, Japan, with reference to host developmental stages, i.e., from current-year seedlings to mature trees. ECM fungal species were identified based on rDNA ITS sequences. Ninety-two ECM fungal species were confirmed from a total of 2480 root tips examined. Species in /suillus-rhizopogon and /wilcoxina were dominant in seedling roots. ECM fungal diversity increased with host development, due to the addition of species-rich fungal lineages (/cenococcum, /cortinarius, and /russula-lactarius) in late successional stages. Such successional pattern of ECM fungi is similar to those in temperate pine systems, suggesting the predominant role of /suillus-rhizopogon in seedling establishment, even in relict alpine habitats fragmented and isolated for a geological time period. Most of the ECM fungi detected were also recorded in Europe or North America, indicating their potential Holarctic distribution and the possibility of their comigration with P. pumila through land bridges during ice ages. In addition, we found significant effects of soil properties on ECM fungal communities, which explained 34.1% of the total variation of the fungal communities. While alpine vegetation is regarded as vulnerable to the ongoing global warming, ECM fungal communities associated with P. pumila could be altered by the edaphic change induced by the warming. PMID- 29330575 TI - A new technique for minimal invasive complete spinal cord injury in minipigs. AB - BACKGROUND: The aim of this study was to develop a minimal invasive complete spinal cord injury (SCI) minipig model for future research applications. The minipig is considered a translationally relevant model for SCI research. However, a standardized minimal invasive complete SCI model for pigs has not yet been established. METHODS: Adult Gottingen minipigs were anesthetized and placed in extended prone position. After initial computed tomography (CT) scan, the skin was incised, a needle placed in the epidural fatty tissue. Using the Seldinger technique, a guidewire and dilators were introduced to insert the balloon catheter to Th12. After confirmation of the level Th11/Th12, the balloon was inflated to 2 atm for 30 min. The severity of the lesion was followed by CT and by MRI, and by immunohistochemistry. Function was assessed at the motor and sensory level. RESULTS: Duration of procedure was about 60 min including the 30 min compression time. The balloon pressure of 2 atm was maintained without losses. The lesion site was clearly discernible and no intradural bleeding was observed by CT. Neurological assessments during the 4-month follow-up time showed consistent, predictable, and stable neurological deficits. Magnetic resonance imaging analyses at 6 h and 4 weeks post SCI with final immunohistochemical analyses of spinal cord tissue underlined the neurological outcomes and proved SCI completeness. CONCLUSIONS: We have established a new, minimal invasive, highly standardized, CT-guided spinal cord injury procedure for minipigs. All risks of the open surgery can be excluded using this technique. This CT-guided SC compression is an excellent technique as it avoids long surgery and extensive trauma and allows a feasible inter-animal comparison. PMID- 29330576 TI - Xipho-pubic angle (XPA) correlates with patient's reported outcomes in a population of adult spinal deformity: results from a multi-center cohort study. AB - STUDY DESIGN: Retrospective multi-center cohort study. PURPOSE: Sagittal misalignment causes changes in the abdominal shape. Xipho-pubic angle (XPA) has been previously described to radiographically evaluate the shape of the abdominal cavity in patients with spine deformity. The aims of this study are to evaluate the correlation of XPA-to-spinopelvic sagittal parameters and to patients' health related quality-of-life (HRQoL) scores. METHODS: 278 patients from a multi-center database with diagnosis adult spinal deformity (ASD) (one or more of: coronal Cobb angle > 20 degrees , sagittal vertical axis (SVA) > 50 mm, pelvic tilt (PT) > 25 degrees , and thoracic kyphosis > 60 degrees ) were included. Cut-off values for moderate and severe disability (ODI-Oswestry Disability Index-20 and 40%) were calculated. Pearson's correlation was tested between XPA and spinopelvic parameters and between XPA and HRQoL scores. RESULTS: The cut-off value of XPA to identify ODI severe disability (40/100) was identified with XPA smaller than 103 degrees ; minimal (20/100) disability was identified by XPA greater than 113 degrees . XPA showed strong correlation to sagittal spinopelvic parameters-PT, SVA, lumbar lordosis (LL), pelvic incidence (PI) minus LL-and to HRQoL scores ODI, SF-36 PCS and SRS-22 activity and pain. XPA was the parameter with the strongest correlation to HRQoL scores. CONCLUSIONS: Xipho-pubic angle reflects changes in spinal changes and has strong correlation to HRQoL and spinopelvic parameters. It can discriminate between patients with minimal, moderate, and severe disability as measured by ODI scores. These slides can be retrieved under Electronic Supplementary Material. PMID- 29330578 TI - [Lichenoid diseases]. PMID- 29330577 TI - Asymptomatic population reference values for three knee patient-reported outcomes measures: evaluation of an electronic data collection system and implications for future international, multi-centre cohort studies. AB - OBJECTIVES: The aim was to assess whether the Knee Society Score, Oxford Knee Score (OKS) and Knee Injury and Osteoarthritis Outcome Score (KOOS) were comparable in asymptomatic, healthy, individuals of different age, gender and ethnicity, across two remote continents. The purpose of this study was to establish normal population values for these scores using an electronic data collection system. HYPOTHESIS: There is no difference in clinical knee scores in an asymptomatic population when comparing age, gender and ethnicity, across two remote continents. METHODS: 312 Australian and 314 Canadian citizens, aged 18-94 years, with no active knee pain, injury or pathology in the ipsilateral knee corresponding to their dominant arm, were evaluated. A knee examination was performed and participants completed an electronically administered questionnaire covering the subjective components of the knee scores. The cohorts were age- and gender-matched. Chi-square tests, Fisher's exact test and Poisson regression models were used where appropriate, to investigate the association between knee scores, age, gender, ethnicity and nationality. RESULTS: There was a significant inverse relationship between age and all assessment tools. OKS recorded a significant difference between gender with females scoring on average 1% lower score. There was no significant difference between international cohorts when comparing all assessment tools. CONCLUSIONS: An electronic, multi-centre data collection system can be effectively utilized to assess remote international cohorts. Differences in gender, age, ethnicity and nationality should be taken into consideration when using knee scores to compare to pathological patient scores. This study has established an electronic, normal control group for future studies using the Knee society, Oxford, and KOOS knee scores. LEVEL OF EVIDENCE: Diagnostic Level II. PMID- 29330579 TI - [Initially undetected de novo psoriasis triggered by nivolumab for metastatic base of the tongue carcinoma]. AB - Nivolumab is a monoclonal antibody that binds to the PD-1 receptor on T cells and inhibits the interaction with the PD-L1 and PD-L2 ligands on cancer cells. Thus, nivolumab has immunostimulatory properties. The known side effects of this therapy include fatigue, skin rash, dysfunction of the thyroid gland and colitis, which are explained by the immunoregulatory mechanisms of the drug. Here we report on the case of a 58-year-old man with metastatic base of tongue carcinoma who developed de novo psoriasis triggered by nivolumab. The patient was treated for months with the diagnosis of a generalized mycosis. This case highlights the importance of vigilance for unexpected cutaneous side effects during immune stimulating therapy with checkpoint inhibitors. PMID- 29330580 TI - [Lichen ruber planus : Better understanding, better treatment!] AB - Lichen ruber, also called lichen ruber planus or lichen planus (LP), is a noncontagious inflammatory skin disease. LP is the main representative and namesake of the group of lichenoid diseases, which are characterized by small papules often accompanied by severe itching. With 65% of cases, LP is primarily a disease of the mucous membranes. In 20% of the cases, the disease is found on the skin and mucous membranes; skin involvement alone is seen in only about 10% of cases. Cutaneous LP has a very favorable 1-year prognosis of almost 80% healing as opposed to the mucosa and the adnexal organs. Histologically, keratinocytes with vacuolar degeneration, leaving behind apoptotic Kamino bodies and the characteristic band-shaped lymphocytic infiltrate at the dermatoepithelial junction, are common to lichenoid diseases. The horny layer is firm and compact and the stratum granulosum is thickened as a correlate of the Wickham stripes. The molecular pathogenesis, still partially hypothetical, assumes trigger factors leading to the presentation of intrinsic or foreign antigens. The triggered inflammation becomes independent in the sense of a classical cell-mediated autoimmune disease. Other autoimmune diseases are often associated with LP. Classical anti-inflammatory-immunosuppressive therapeutic concepts dominate with systemic retinoids ranking first in the highest evidence class for cutaneous LP with limitations in treatment of both mucosal and adnexal LP. More recently, interesting and new complementary phototherapeutics have been identified. PMID- 29330581 TI - [Liposuction]. AB - Liposuction began in the 1920s when the Parisian surgeon Charles Dujarier became interested in body shaping and fat removal. Today, it is estimated that 1,453,000 liposuctions are annually performed worldwide. In Germany, 45,000 liposuctions are performed annually. The majority of liposuctions are performed as self-pay services. The aim of this article is to outline the development of liposuction, to explain the various liposuction procedures and methods, to clarify the indications for treatment, and point out the complications and pitfalls described in the literature. PMID- 29330583 TI - Utilization of Active Surveillance and Watchful Waiting for localized prostate cancer in the daily practice. AB - PURPOSE: To analyze the utilization of Active Surveillance (AS) and Watchful Waiting (WW) in the daily routine setting, since both are non-invasive treatment options for localized prostate cancer (PCa), which are used in a curative (AS) or palliative (WW) setting. Since differentiation of both strategies is not always clear, patients were compared with respect to the inclusion criteria, frequency of follow-up examinations (Prostate Specific Antigen = PSA tests, rebiopsies), and initiation of a deferred treatment. METHODS: HAROW is a non-interventional, health-service research study on the management of localized PCa in the community setting. Of 3169 patients, prospectively enrolled from 2008 to 2013 with a mean follow-up of 28.2 months, 468 chose AS and 126 WW. Treating urologists reported clinical variables, information on therapy and clinical course of disease. RESULTS: AS patients were significantly younger and had more low-risk tumors. No differences were seen in the number of PSA tests during follow-up: mean number of PSA tests was 6.08 for AS- and 5.18 for WW patients, more than four PSA tests were reported in 63.9% AS- and 59.5% WW patients (p = 0.136). At least one re biopsy was performed in 39.7% AS- and 9.5% WW patients (p < 0.001). Discontinuation rates were 23.9% (n = 112) for AS and 11.9% (n = 15) for WW. Most of the AS patients opted for a curative treatment (prostatectomy = 65, radiotherapy = 30), whereas 12 WW patients received a palliative hormone therapy and three patients received radiotherapy. CONCLUSIONS: Physicians seem to distinguish clearly between AS and WW in terms of inclusion criteria and deferred therapy, whereas this differentiation tends to become indistinct in terms of follow-up examinations. PMID- 29330582 TI - Nano-silicon alters antioxidant activities of soybean seedlings under salt toxicity. AB - Materials with a particle size less than 100 nm are classified as nano-materials. The physical and chemical properties of nano-materials can vary considerably from those of bulk materials of the same composition. Silicon (Si) still fails to get recognized as an essential nutrient for plant growth and development, however the beneficial effects in terms of growth, biotic and abiotic stress resistance have been indicated in a variety of plant species for their growth. The aim of this study was to investigate the effects of different nano-silicon rates on the growth and antioxidant activities of soybean (Glycine max L. cv. M7) under salt stress. The results showed that salinity decreased shoot and root dry weight, potassium (K+) concentration in the root and leaf; however, increased sodium (Na+) concentration, catalase, peroxidase, ascorbate peroxidase and superoxide dismutase activities, phenolic components, ascorbic acid and alpha-tocopherol contents, lipid peroxidation, hydrogen peroxide, and oxygen radical's concentration. Between the treatments, 0.5 and 1 mM of nanosilicon oxide (nano SiO2) improved shoot and root growth of seedlings. In contrast, a foliar application of SiO2 at 2 mM reduced the soybean growth. Overall, exogenous nano silicon alleviated the salt stress by increase in K+ concentration, antioxidant activities, non-enzymatic compounds and decreasing of Na+ concentration, lipid peroxidation, and reactive oxygen species production. PMID- 29330584 TI - A dedicated neurologist at the emergency department during out-of-office hours decreases patients' length of stay and admission percentages. AB - BACKGROUND: Emergency departments (EDs) worldwide face crowding, which hampers patient flow. In this study, the impact of a dedicated neurologist present at the ED on patient flow during out-of-office hours was assessed. METHODS: A cross sectional, mixed methods study was undertaken at a Dutch ED, including a pre-post analysis of data of patients who had a primary neurological disease (n = 458) and staff surveys (n = 152). Descriptive statistics and content analysis were used for analyses. RESULTS: Despite a 36% increase in the number of neurological patients (control period: n = 194, intervention period n = 264), a 30 min per patient decrease in ED median length of stay (LOS) was reached during the intervention period. Furthermore, the admission percentage decreased significantly (57.7% in the control period vs. 47.7% in the intervention period, p = 0.03). During half of the shifts neurologists stated that their presence had been valuable. Perceived reasons for this added value mentioned were improved quality of care, enhanced throughput of patients, and quicker consultations with other medical specialists. CONCLUSIONS: In our hypothesis-generating study, a dedicated neurologist present at the ED during out-of-office hours was associated with decreased patients' LOS and a decreased admission percentage, indicating increased decisiveness when the neurologist is present at the ED. PMID- 29330586 TI - Hydrocephalus recurrence and intestinal obstruction due to giant CSF pseudocyst. PMID- 29330585 TI - Potentially inappropriate medications in community-dwelling older adults undertaken as a comprehensive geriatric risk assessment. AB - PURPOSE: The prescription of potentially inappropriate medications (PIMs) is associated with an increase in adverse events, prescribing cascades, high health care costs, morbidity, and mortality in the elderly. The overarching objective of this study is to examine the prevalence of PIMs in the elderly, applying the 2012 American Geriatrics Society Beers criteria for the study period 2012-2014, and the updated 2015 Beers criteria for 2015. METHODS: The study population (N = 70,479) included a continuously recruited national cohort of community-dwelling older (aged >= 65 years) New Zealanders who had undertaken the International Resident Assessment Instrument-Home Care (interRAI-HC) assessments between September 2012 and October 2015. Exposure of PIMs 90 days before and after assessment, and 90-180 days after assessment are reported. RESULTS: Exposure to PIMs was highest in individuals aged over 95 years and in males. The average number of PIMs prescribed 90 days before assessment during the period 2015 was marginally higher compared to 2012-2014 (0.19 versus 0.04), and a greater number of individuals were exposed to one or more PIMs in 2015 compared to 2012-2014 (7.13 versus 2.17%). The prevalence of PIMs 90 days before and after assessment was 2.17 and 6.92% for 2012-2014, and 7.13 and 24.7% for 2015, respectively. The percent change in PIMs in 2012-2014 and 2015 after 90 days of assessment were 4.70% (confidence interval (CI) 4.50%, 5.00%, p < 0.001) and 17.60% (95% CI 16.80%, 18.30%, p < 0.001), respectively. The majority of PIMs prescribed belonged to the therapeutic class of medications acting on the central nervous system and the gastrointestinal system. CONCLUSION: Geriatric risk assessments may provide a vital opportunity to review medication lists by multidisciplinary teams with a view to reducing PIMs and unnecessary polypharmacy in older adults. Comprehensive geriatric risk assessment has the potential to reduce adverse medication outcomes and costs associated with inappropriate prescribing in a vulnerable population of older adults. PMID- 29330587 TI - Posterior reversible encephalopathy syndrome with spinal cord involvement (PRES SCI) as a rare complication of severe diabetic ketoacidosis: a case report and review of the literature. AB - INTRODUCTION: In addition to diffuse brain oedema, diabetic ketoacidosis (DKA) can lead to ischaemic or haemorrhagic stroke, extrapontine myelinolysis, and sinovenous thrombosis. However, posterior reversible encephalopathy syndrome (PRES) and spinal cord oedema are rarely reported in patients with DKA. METHODS: We present a case of a 17-year-old-girl who developed headache, blurred vision, and paraplegia after her DKA was controlled. Sequential magnetic resonance (MR) scans of the brain and spinal cord were performed. RESULTS: Brain MR showed large patchy lesions in the bilateral white matter of the parieto-occipital lobes, which had high T2 signal intensity and low T1 signal intensity. MR scanning of the spinal cord showed longitudinal confluent central spinal cord T2 hyperintensity spanning seven thoracic spinal segments. With symptomatic treatment, the patient's headache and vision disturbance subsided within 1 week. Subsequent MR scans demonstrated that the lesion in the spinal cord had decreased significantly in 10 days, and the large patchy lesions in the brain disappeared completely in 2 months. Her paraplegia improved gradually without obvious sequela 3 months later. The evolution of the disease and radiological findings supported the diagnosis of PRES with spinal cord involvement. CONCLUSION: To the best of our knowledge, this is the first case report describing PRES with spinal cord involvement as a complication of DKA. PRES is a rare complication that should be considered along with other neurological complications of DKA when focal deficits appear. PMID- 29330588 TI - Whole-body 3D kinematics of bird take-off: key role of the legs to propel the trunk. AB - Previous studies showed that birds primarily use their hindlimbs to propel themselves into the air in order to take-off. Yet, it remains unclear how the different parts of their musculoskeletal system move to produce the necessary acceleration. To quantify the relative motions of the bones during the terrestrial phase of take-off, we used biplanar fluoroscopy in two species of birds, diamond dove (Geopelia cuneata) and zebra finch (Taeniopygia guttata). We obtained a detailed 3D kinematics analysis of the head, the trunk and the three long bones of the left leg. We found that the entire body assisted the production of the needed forces to take-off, during two distinct but complementary phases. The first one, a relatively slow preparatory phase, started with a movement of the head and an alignment of the different groups of bones with the future take off direction. It was associated with a pitch down of the trunk and a flexion of the ankle, of the hip and, to a lesser extent, of the knee. This crouching movement could contribute to the loading of the leg muscles and store elastic energy that could be released in the propulsive phase of take-off, during the extension of the leg joints. Combined with the fact that the head, together with the trunk, produced a forward momentum, the entire body assisted the production of the needed forces to take-off. The second phase was faster with mostly horizontal forward and vertical upward translation motions, synchronous to an extension of the entire lower articulated musculoskeletal system. It led to the propulsion of the bird in the air with a fundamental role of the hip and ankle joints to move the trunk upward and forward. Take-off kinematics were similar in both studied species, with a more pronounced crouching movement in diamond dove, which can be related to a large body mass compared to zebra finch. PMID- 29330589 TI - Impact of valve-less vs. standard insufflation on pneumoperitoneum volume, inflammation, and peritoneal physiology in a laparoscopic sigmoid resection experimental model. AB - BACKGROUND: Standard insufflators compensate for intra-abdominal pressure variations with pressure spikes. Our aim was to evaluate the impact of a stable, low-pressure pneumoperitoneum induced by a valve-less insufflator, on working space, hemodynamics, inflammation, and peritoneal physiology, in a model of laparoscopic sigmoid resection. MATERIALS AND METHODS: Twelve pigs (47 +/- 3.3 kg) were equipped for invasive hemodynamic monitoring and randomly assigned to Standard (n = 6) vs. valve-less (n = 6) insufflation. Animals were positioned in a 30 degrees Trendelenburg on a CT scan bed. A low-pressure pneumoperitoneum (8 mmHg) was started and duration was set for 180 min. Abdominal CT scans were performed, under neuromuscular blockade, before, immediately after, and 1 and 3 h after insufflation. Pneumoperitoneum volumes were calculated on 3D reconstructed CT scans. After creation of a mesenteric window, capillary blood was obtained by puncturing the sigmoid serosa and local lactatemia (mmol/L) was measured using a handheld analyzer. Surgical resection was performed according to the level of lactates, in order to standardize bowel stump perfusion. IL-1 and IL-6 (ng/mL) were measured repeatedly. The peritoneum was sampled close to the surgical site and distantly for the oxygraphic assessment of mitochondrial respiration. A pathologist applied a semi-quantitative score to evaluate the anastomosis. RESULTS: Mean arterial pressure, pulse, body temperature, oximetry, systemic lactatemia, and local lactates were similar. IL-6 was lower in the valve-less group, reaching a statistically significant difference after 3 h of insufflation (64.85 +/- 32.5 vs. 133.95 +/- 59.73; p = 0.038) and 48 h (77.53 +/- 68.4 vs. 190.74 +/- 140.79; p = 0.029). Peritoneal mitochondrial respiration was significantly increased after the survival period, with no difference among the groups. The anastomoses in the valve-less group demonstrated a lower acute (p = 0.04) inflammatory infiltration. The mean anterior posterior thickness was slightly, yet significantly higher in the valve-less group, on all post insufflation CT scans. CONCLUSIONS: Valve-less insufflation achieved a slightly higher working space and a lower systemic and localized inflammatory response in this experimental setting. PMID- 29330590 TI - A meta-analysis of pesticide loss in runoff under conventional tillage and no till management. AB - Global agricultural intensification has led to increased pesticide use (37-fold from 1960 to 2005) and soil erosion (14% since 2000). Conservation tillage, including no-till (NT), has been proposed as an alternative to conventional plow till (PT) to mitigate soil erosion, but past studies have reported mixed results on the effect of conservation tillage on pesticide loss. To explore the underlying factors of these differences, a meta-analysis was conducted using published data on pesticide concentration and load in agricultural runoff from NT and PT fields. Peer-reviewed articles (1985-2016) were compiled to build a database for analysis. Contrary to expectations, results showed greater concentration of atrazine, cyanazine, dicamba, and simazine in runoff from NT than PT fields. Further, we observed greater load of dicamba and metribuzin, but reduced load of alachlor from NT fields. Overall, the concentration and the load of pesticides were greater in runoff from NT fields, especially pesticides with high solubility and low affinity for solids. Thus, NT farming affects soil properties that control pesticide retention and interactions with soils, and ultimately their mobility in the environment. Future research is needed for a more complete understanding of pesticide-soil interactions in NT systems. This research could inform the selection of pesticides by farmers and improve the predictive power of pesticide transport models. PMID- 29330592 TI - Genomic characterization of key bacteriophages to formulate the potential biocontrol agent to combat enteric pathogenic bacteria. AB - Combating bacterial pathogens has become a global concern especially when the antibiotics and chemical agents are failing to control the spread due to its resistance. Bacteriophages act as a safe biocontrol agent by selectively lysing the bacterial pathogens without affecting the natural beneficial microflora. The present study describes the screening of prominent enteric pathogens NDK1, NDK2, NDK3, and NDK4 (Escherichia, Klebsiella, Enterobacter, and Serratia) mostly observed in domestic wastewater; against which KNP1, KNP2, KNP3, and KNP4 phages were isolated. To analyze their potential role in eradicating enteric pathogens and toxicity issue, these bacteriophages were sequenced using next-generation sequencing and characterized based on its genomic content. The isolated bacteriophages were homologous to Escherichia phage (KNP1), Klebsiella phage (KNP2), Enterobacter phage (KNP3), Serratia phage (KNP4), and belonged to Myoviridae family of Caudovirales except for the unclassified KNP4 phage. Draft genome analysis revealed the presence of lytic enzymes such as holing and lysozyme in KNP1 phage, endolysin in KNP2 phage, and endopeptidase with holin in KNP3 phage. The absence of any lysogenic and virulent genes makes this bacteriophage suitable candidate for preparation of phage cocktail to combat the pathogens present in wastewater. However, KNP4 contained a virulent gene rendering it unsuitable to be used as a biocontrol agent. These findings make the phages (KNP1-KNP3) as a promising alternative for the biocontrol of pathogens in wastewater which is the main culprit to spread these dominated pathogens in different natural water bodies. This study also necessitates for genomic screening of bacteriophages for lysogenic and virulence genes prior to its use as a biocontrol agent. PMID- 29330593 TI - The Pathophysiological Basis and Surgical Management of Ranula are Established: Reply. PMID- 29330591 TI - Changes in the lipopolysaccharide of Proteus mirabilis 9B-m (O11a) clinical strain in response to planktonic or biofilm type of growth. AB - The impact of planktonic and biofilm lifestyles of the clinical isolate Proteus mirabilis 9B-m on its lipopolysaccharide (O-polysaccharide, core region, and lipid A) was evaluated. Proteus mirabilis bacteria are able to form biofilm and lipopolysaccharide is one of the factors involved in the biofilm formation. Lipopolysaccharide was isolated from planktonic and biofilm cells of the investigated strain and analyzed by SDS-PAGE with silver staining, Western blotting and ELISA, as well as NMR and matrix-assisted laser desorption ionization time-of-flight mass spectrometry techniques. Chemical and NMR spectroscopic analyses revealed that the structure of the O-polysaccharide of P. mirabilis 9B-m strain did not depend on the form of cell growth, but the full length chains of the O-antigen were reduced when bacteria grew in biofilm. The study also revealed structural modifications of the core region in the lipopolysaccharide of biofilm-associated cells-peaks assigned to compounds absent in cells from the planktonic culture and not previously detected in any of the known Proteus core oligosaccharides. No differences in the lipid A structure were observed. In summary, our study demonstrated for the first time that changes in the lifestyle of P. mirabilis bacteria leads to the modifications of their important virulence factor-lipopolysaccharide. PMID- 29330594 TI - Coding valence in touchscreen interactions: hand dominance and lateral movement influence valence appraisals of emotional pictures. AB - The Body-Specificity Hypothesis postulates that the space surrounding the dominant hand is perceived as positive due to the motor fluency of this hand, whereas the space surrounding the non-dominant hand is perceived as negative. Experimental studies based on this theoretical framework also revealed associations between affective valence and hand dominance (i.e., dominant hand positive; non-dominant hand-negative), or lateral movements of the hands (i.e., right hand toward the right space-positive; left hand toward the left space positive). Interestingly, these associations have not been examined with regard to how lateral actions of the hands may influence affective experiences as, for example, in valence appraisals of affective objects that have been manipulated. The study presented here has considered this question in light of the emerging interest of embodied cognition approaches to interactive technologies, particularly in affective experiences with touchscreen interfaces. Accordingly, right-handed participants evaluated the valence of positive and negative emotional pictures after interacting with them either with the dominant right or with the non-dominant left hand. Specifically, they moved the pictures either from left to right or from right to left sides of a touchscreen monitor. The results indicated that a valence matching between the hand used for the interactions, the picture's valence category, and the movement's starting side reinforced the valence appraisals of the pictures (i.e., positive/negative pictures were more positively/negatively evaluated). The findings are discussed against the background of the Theory of Event Coding, which accounts for both the affective properties of the stimuli and the affective connotation of the related action. PMID- 29330595 TI - Consistency, not speed: temporal regularity as a metacognitive cue. AB - We examined the hypothesis that skilled performance is monitored on the basis of fluency, where fluency is operationally defined as temporal regularity or rhythmicity rather than speed. Since error is often associated with variable timing, we tested the possibility that people use varied timing as a metacognitive cue. Using a sequential counting task, which may be representative of the broader class of skilled, multi-step tasks, we found that shifting between irregular and regular timing led to greater confidence ratings when the timing associated with the task was regular. We argue that regular, consistent timing, when compared directly to irregular timing, produced feelings of fluent task performance, leading to increased confidence. In the first experiment, we demonstrated that both accuracy and confidence were higher when participants completed a task presented with regular timing. In the second experiment, we found a dissociation between accuracy and confidence, strengthening the argument that individuals relied on monitoring of fluency to support their metacognitive judgments. In Study 3 and an assessment of naive beliefs, we ruled out alternative explanations for these findings. PMID- 29330596 TI - Cognitive functioning: is it all or none? AB - Under various circumstances, the cognitive system operates in a global manner that is not very precise and barely discriminatory. This form of operating has been described via a general principal that Diamond (Developmental Psychology 45:130-138, 2009) has denominated the All or None Hypothesis. This author has described a set of corollaries derived from this hypothesis that make it possible to verify it in each one of these domains. Although there is evidence of the global and non-discriminate way in which the cognitive system operates in populations of children, to date, there are no studies that have examined whether this mode of operation is also present in populations of adults. Researchers have yet to determine whether these corollaries apply to middle-aged adults. For this reason, this is the current study's principal objective. A sample of 73 participants with ages ranging from 18 to 57 of both genders was evaluated. A modified version of the arrows test in Davidson et al. (Neuropsychologia 44:2037 2078, 2006) was used to analyze the three corollaries. The results obtained in this study can be interpreted as evidence in favor of the corollaries analyzed herein. Furthermore, they indicate that adult populations have a global response mode that is barely differentiated and that is activated by default in the face of problems and situations that demand behaviors and/or thoughts that are not very analytical and differentiated. However, in contexts that demand greater discrimination, this global mode is substituted by a controlled mode that requires greater cognitive effort and more differentiated processing. PMID- 29330597 TI - Inpatient treatment of patients with idiopathic sudden sensorineural hearing loss: a population-based healthcare research study. AB - PURPOSE: The aim was to determine inpatient treatment rates of idiopathic sudden sensorineural hearing loss (ISSNHL) with focus on diagnostics, treatment, and outcome. METHODS: A retrospective population-based study in the federal state Thuringia in 2011 and 2012 was performed on all 490 inpatients (51% females, median age: 60 years) treated for ISSNHL (Median duration: 7 days). The association between analyzed parameters and the probability of recovery was tested using univariable and multivariable statistics. RESULTS: The inpatient treatment rate for ISSNHL was 11.23 per 100,000. 172 patients (35%) had an outpatient treatment prior to inpatient treatment. For pure-tone audiometry of the three most affected frequencies (3PTAmax), the initial median hearing loss was 66.67 dB, the median absolute hearing gain DeltaPTAabs was 10.0 dB, and the median relative hearing gain in relation with the contralateral side DeltaPTArel contral was 30.86%. 51% of the patients reached a DeltaPTAabs of >= 10 dB. About 2 of 5 patients recovered to a DeltaPTArel contral >= 50% or reached <= 10 dB of contralateral ear. The multivariate analysis revealed that an ISSNHL on the left side [Hazard ratio (HR) = 1.6.88; confidence interval (CI) = 1.161-2.454], no down-sloping audiogram type (HR = 2.016; CI = 1.391-2.921), and no prior outpatient prednisolone treatment (HR = 2.374; CI = 1.505-3.745) were independent factors associated with better recovery (DeltaPTAabs >= 10 dB). CONCLUSION: Inpatient treatment of ISSNHL is variable in daily practice. The population-based recovery rate was worse than reported in clinical trials. More standardization and clearer criteria for outpatient, inpatient, and salvage therapy are needed. PMID- 29330598 TI - Satisfaction in rhinoplasty: the possible impact of anxiety and functional outcome. AB - BACKGROUND: Rhinoplasty is a complex but commonly applied surgical procedure. Patient satisfaction is the least discussed but one of the most important determinants of surgical success. OBJECTIVES: Evaluation of the patient satisfaction together with surgeon satisfaction were the main goals of this study. The roles of anxiety, gender, age and follow-up period were also studied. PATIENTS AND METHODS: 53 eligible patients operated by the first two authors within the previous 2 years were enrolled in the study. The medical records were reviewed for demographic data as well as the details of the surgical procedure. Functional and esthetic satisfactions of the patients were evaluated by VAS and ROE respectively. Surgeon satisfaction was evaluated by VAS in crosswise manner. Anxiety was measured by STAI_s and STAI_t scales. RESULTS: The analysis concerning esthetic results as well as functional results did not reveal any significant difference between the two surgeons (p = 0.132, p = 0.43 respectively). ROE scores were significantly different among patients with "good" and "very good" functional results. The difference between surgeon satisfaction and patient satisfaction was found to be insignificant (p = 0.273). Correlation analysis yielded a positive correlation between STAI_I and STAI_II (Pearson r = 0.335, p = 0.014) but not between STAI scores and ROE scores. Moreover, there was no relation between anxiety scores and the functional results. Likely, gender as well as age, follow-up, and surgical technique were not found to have any effect on patient satisfaction either. CONCLUSION: Patient satisfaction is preferential in rhinoplasty. In our patient series, patient satisfaction was shown to be correlated with functional outcome but not with surgeon satisfaction. Anxiety was not found to have a significant impact on results of rhinoplasty. Our results should be interpreted cautiously keeping in mind that our patients' primary drive for rhinoplasty was functional. PMID- 29330599 TI - Infraorbital foramen localization in orbitozygomatic fractures: a CT study with intraoperative finding. AB - OBJECTIVE: The aim of this study was to assess the infraorbital foramen (IOF) using CT in patients with Zygomaticomaxillary complex (ZMC) fractures (midface fracture). PATIENTS AND METHODS: This prospective study was carried out on 49 patients had ZMC fractures (98 sides) and 27 patients (54 sides) with craniomaxillofacial fractures rather than fractured ZMC as a control. Using CT, position of IOF was documented on 3D view in relation to inferior orbital rim, tooth root relation and finally with a novel imaginary line passing between anterior nasal spine and whitnall tubercle. RESULTS: Position of IOF had fixed anatomical landmark: just lateral to a line drawn between the anterior nasal spine to whitnall tubercle (clinically between nasal tip-lateral canthal ligament) and lateral to vertical plane to root of maxillary canine also with variable distance from inferior orbital rim ranged from 4.56 to 18.03 mm with a mean of 7.9 +/- 2.447 mm. CONCLUSION: Even though ZMC fractures disturb the anatomical location of the ZMC bones, there are still preserved reliable fixed landmarks maxillofacial surgeons can depend on to identify and preserve ION. PMID- 29330600 TI - The impact of acoustic neuroma on long-term quality-of-life outcomes in the United Kingdom. AB - OBJECTIVE: To quantify the impact of acoustic neuroma on the quality-of-life (QOL) patients in the United Kingdom. STUDY DESIGN: Online questionnaire survey. PATIENTS: Members of the British Acoustic Neuroma Association received PANQOL questionnaires. RESULTS: Of the 880 BANA members contacted, 397 (45.1%) responded, although only 359 had complete datasets for analysis. Composite QOL scores were as follows: for microsurgery 58 (SD 35), for radiotherapy 56 (SD18), for combination of surgery and radiotherapy 49 (SD 14), and for the observation group 54 (SD 20). No statistical significance with ANOVA (p = 0.532). Mean (SD) composite QOL scores were as follows: for follow-up < 6 52 (SD 18), for follow-up 6-10 55 (SD 20) and follow-up > 10 years 65 (SD 45). Overall, these values were significantly different compared by ANOVA (p < 0.001). Patients with facial paralysis showed no statistical significant differences between the different treatment groups. CONCLUSIONS: Short- (< 6 years) and long-term (> 10 years) QOL outcomes show no significant differences between the different treatment groups. PMID- 29330602 TI - Ecosystem carbon emissions from 2015 forest fires in interior Alaska. AB - BACKGROUND: In the summer of 2015, hundreds of wildfires burned across the state of Alaska, and consumed more than 1.6 million ha of boreal forest and wetlands in the Yukon-Koyukuk region. Mapping of 113 large wildfires using Landsat satellite images from before and after 2015 indicated that nearly 60% of this area was burned at moderate-to-high severity levels. Field measurements near the town of Tanana on the Yukon River were carried out in July of 2017 in both unburned and 2015 burned forested areas (nearly adjacent to one-another) to visually verify locations of different Landsat burn severity classes (low, moderate, or high; LBS, MBS, HBS). RESULTS: Field measurements indicated that the loss of surface organic layers in boreal ecosystem fires is a major factor determining post-fire soil temperature changes, depth of thawing, and carbon losses from the mineral topsoil layer. Measurements in forest sites showed that soil temperature profiles to 30 cm depth at burned forest sites were higher by an average of 8-10 degrees C compared to unburned forest sites. Sampling and laboratory analysis indicated a 65% reduction in soil carbon content and a 58% reduction in soil nitrogen content in severely burned sample sites compared to soil mineral samples from nearby unburned spruce forests. CONCLUSIONS: Combined with nearly unprecedented forest areas severely burned in the Interior region of Alaska in 2015, total ecosystem fire-related losses of carbon to the atmosphere exceeded most previous estimates for the state, owing mainly to inclusion of potential "mass wasting" and decomposition in the mineral soil carbon layer in the 2 years following these forest fires. PMID- 29330601 TI - Assessment of vestibular-evoked myogenic potentials and video head impulse test in type 2 diabetes mellitus patients with or without polyneuropathy. AB - This study aimed to compare cervical vestibular-evoked myogenic potentials (cVEMP), ocular vestibular-evoked myogenic potentials (oVEMP) and video head impulse test (vHIT) results between patients with type 2 diabetes mellitus (DM) or diabetic polyneuropathy (DPN) and healthy controls to determine vestibular end organ pathologies. The participants in the present study consisted of three groups: the type 2 DM group (n = 33 patients), the DPN group (n = 33 patients), and the age- and sex-matched control group (n = 35). Cervical VEMP, oVEMP and vHIT were performed for each participant in the study and test results were compared between the groups. Peak-to-peak amplitudes of cVEMP (p13-n21) and oVEMP (n10-p15) were significantly lower in the DM and DPN groups than the control group. The values of vHIT were not statistically different between the groups. To our knowledge, the present study is the first report investigating oVEMP and cVEMP responses combined with vHIT findings in patients with DM and DPN. Vestibular end-organ pathologies can be determined via clinical vestibular diagnostic tools in spite of prominent vestibular symptoms in patients with type 2 DM as well as patients with DPN. PMID- 29330603 TI - Magnetic covalent triazine-based frameworks as magnetic solid-phase extraction adsorbents for sensitive determination of perfluorinated compounds in environmental water samples. AB - Covalent organic frameworks (COFs), which are a new type of carbonaceous polymeric material, have attracted great interest because of their large surface area and high chemical and thermal stability. However, to the best of our knowledge, no work has reported the use of magnetic COFs as adsorbents for magnetic solid-phase extraction (MSPE) to enrich and determine environmental pollutants. This work aims to investigate the feasibility of using covalent triazine-based framework (CTF)/Fe2O3 composites as MSPE adsorbents to enrich and analyze perfluorinated compounds (PFCs) at trace levels in water samples. Under the optimal conditions, the method developed exhibited low limits of detection (0.62-1.39 ng.L-1), a wide linear range (5-4000 ng L-1), good repeatability (1.12 9.71%), and good reproducibility (2.45-7.74%). The new method was successfully used to determine PFCs in actual environmental water samples. MSPE based on CTF/Fe2O3 composites exhibits potential for analysis of PFCs at trace levels in environmental water samples. Graphical abstract Magnetic covalent triazine-based frameworks (CTFs) were used as magnetic solid-phase extraction adsorbents for the sensitive determination of perfluorinated compounds in environmental water samples. PFBA perfluorobutyric acid, PFBS perfluorobutane sulfonate, PFDA perfluorodecanoic acid, PFDoA perfluorododecanoic acid, PFHpA perfluoroheptanoic acid, PFHxA perfluorohexanoic acid, PFHxS perfluorohexane sulfonate, PFNA perfluorononanoic acid, PFOA perfluorooctanoic acid, PFPeA perfluoropentanoic acid, PFUdA Perfluoroundecanoic acid. PMID- 29330605 TI - Membrane-Ion Interactions. AB - Biomembranes assemble and operate at the interface with electrolyte solutions. Interactions between ions in solutions and the lipid affect the membrane structure, dynamics and electrostatic potential. In this article, I review some of the experimental and computational methods that are used to study membrane ions interactions. Experimental methods that account for membrane-ion interactions directly and indirectly are presented first. Then, studies in which molecular dynamics simulations were used to gain an understanding of membrane-ion interactions are surveyed. Finally, the current view on membrane-ion interactions and their significance is briefly discussed. PMID- 29330604 TI - Driving Forces of Translocation Through Bacterial Translocon SecYEG. AB - This review focusses on the energetics of protein translocation via the Sec translocation machinery. First we complement structural data about SecYEG's conformational rearrangements by insight obtained from functional assays. These include measurements of SecYEG permeability that allow assessment of channel gating by ligand binding and membrane voltage. Second we will discuss the power stroke and Brownian ratcheting models of substrate translocation and the role that the two models assign to the putative driving forces: (i) ATP (SecA) and GTP (ribosome) hydrolysis, (ii) interaction with accessory proteins, (iii) membrane partitioning and folding, (iv) proton motive force (PMF), and (v) entropic contributions. Our analysis underlines how important energized membranes are for unravelling the translocation mechanism in future experiments. PMID- 29330606 TI - The associations of poor psychiatric well-being among incarcerated men with injecting drug use histories in Victoria, Australia. AB - BACKGROUND: Dual substance dependence and psychiatric and psychological morbidities are overrepresented in prison populations and associated with reoffending. In the context of an increasing prison population in Australia, investigating the needs of vulnerable people in prison with a dual diagnosis can help inform in-prison screening and treatment and improve prison and community service integration and continuation of care. In this study we quantified psychiatric well-being in a sample of people in prison with a history of injecting drug use in Victoria, Australia, and identified factors associated with this outcome. METHODS AND RESULTS: Data for this paper come from baseline interviews undertaken in the weeks prior to release as part of a prospective cohort study of incarcerated men who reported regular injecting drug use prior to their current sentence. Eligible participants completed a researcher-administered structured questionnaire that canvassed a range of issues. Psychiatric well-being was assessed using the 12-item General Health Questionnaire (GHQ-12) and potential correlates were included based on a review of the literature. Of the 317 men included for analyses, 139 were classified as experiencing current poor psychiatric well-being. In the multivariate model using modified logistic regression, history of suicide attempt (aOR = 1.36, 95%CI 1.03-1.78), two or more medical conditions (aOR = 1.87, 95%CI 1.30-2.67) and use of crystal methamphetamine in the week prior to their current sentence (aOR = 1.52, 95%CI 1.05-2.22) were statistically significantly associated with current poor psychiatric well-being. CONCLUSIONS: Comprehensively addressing the health related needs for this vulnerable population will require a multidisciplinary approach and enhancing opportunities to screen and triage people in prison for mental health and other potential co-occurring health issues will provide opportunities to better address individual health needs and reoffending risk. PMID- 29330607 TI - River Continuity Restoration and Diadromous Fishes: Much More than an Ecological Issue. AB - Ecosystem fragmentation is a serious threat to biodiversity and one of the main challenges in ecosystem restoration. River continuity restoration (RCR) has often targeted diadromous fishes, a group of species supporting strong cultural and economic values and especially sensitive to river fragmentation. Yet it has frequently produced mixed results and diadromous fishes remain at very low levels of abundance. Against this background, this paper presents the main challenges for defining, evaluating and achieving effective RCR. We first identify challenges specific to disciplines. In ecology, there is a need to develop quantitative and mechanistic models to support decision making, accounting for both direct and indirect impacts of river obstacles and working at the river catchment scale. In a context of dwindling abundances and reduced market value, cultural services provided by diadromous fishes are becoming increasingly prominent. Methods for carrying out economic quantification of non-market values of diadromous fishes become ever more urgent. Given current challenges for rivers to meet all needs sustainably, conflicts arise over the legitimate use of water resources for human purposes. Concepts and methods from political science and geography are needed to develop understandings on how the political work of public authorities and stakeholders can influence the legitimacy of restoration projects. Finally, the most exciting challenge is to combine disciplinary outcomes to achieve a multidisciplinary approach to RCR. Accordingly, the co construction of intermediary objects and diagrams of flows of knowledge among disciplines can be first steps towards new frameworks supporting restoration design and planning. PMID- 29330608 TI - Environmental Performance Information Use by Conservation Agency Staff. AB - Performance-based conservation has long been recognized as crucial to improving program effectiveness, particularly when environmental conditions are dynamic. Yet few studies have investigated the use of environmental performance information by staff of conservation organizations. This article identifies attitudinal, policy and organizational factors influencing the use of a type of performance information-water quality information-by Soil and Water Conservation District staff in the Upper Mississippi River Basin region. An online survey (n = 277) revealed a number of important variables associated with greater information use. Variables included employees' prosocial motivation, or the belief that they helped people and natural resources through their job, the perceived trustworthiness of data, the presence of a U.S. Clean Water Act Total Maximum Daily Load standard designation, and staff discretion to prioritize programs locally. Conservation programs that retain motivated staff and provide them the resources and flexibility to plan and evaluate their work with environmental data may increase conservation effectiveness under changing conditions. PMID- 29330609 TI - Determination of Appropriate Service Delivery Level for Quantitative Attributes of Household Toilets in Rural Settlements of India from Users' Perspective. AB - Improvement of quality of sanitation services in rural settlements is an important development goal in developing countries including India and accordingly several strategies are adopted which promote the demand and use of household toilets through creating awareness and providing subsidies to poor people for construction of household toilets with service-level standards specified from experts' perspective. In many cases, users are unsatisfied with the quality of toilets constructed using subsidies and the same remain unused. Users' satisfaction depends on their perceptions of service quality of individual attributes and overall service quality of the household toilets, which is an important determinant of sustainability and sustained use of toilets. This study aims to assess and benchmark the appropriate service delivery level for quantitative attributes of rural household toilets based on user perception. The service quality is determined with the help of level of service (LOS) scales developed using successive interval scaling technique, the zone of tolerance (ZOT), and users satisfaction level (USL) which relates service delivery levels with user satisfaction directly. The study finds that the service quality of most of the attributes of household toilets constructed using subsidies is perceived as poor. The results also suggest that most of the users expect to have a toilet with the service level of attributes ranging between LOS A and LOS B. PMID- 29330610 TI - Nutrition delivery of a model-based ICU glycaemic control system. AB - BACKGROUND: Hyperglycaemia is commonplace in the adult intensive care unit (ICU), associated with increased morbidity and mortality. Effective glycaemic control (GC) can reduce morbidity and mortality, but has proven difficult. STAR is a proven, effective model-based ICU GC protocol that uniquely maintains normo glycaemia by changing both insulin and nutrition interventions to maximise nutrition in the context of GC in the 4.4-8.0 mmol/L range. Hence, the level of nutrition it provides is a time-varying estimate of the patient-specific ability to take up glucose. METHODS: First, the clinical provision of nutrition by STAR in Christchurch Hospital, New Zealand (N = 221 Patients) is evaluated versus other ICUs, based on the Cahill et al. survey of 158 ICUs. Second, the inter- and intra- patient variation of nutrition delivery with STAR is analysed. Nutrition rates are in terms of percentage of caloric goal achieved. RESULTS: Mean nutrition rates clinically achieved by STAR were significantly higher than the mean and best ICU surveyed, for the first 3 days of ICU stay. There was large inter-patient variation in nutrition rates achieved per day, which reduced overtime as patient-specific metabolic state stabilised. Median intra-patient variation was 12.9%; however, the interquartile range of the mean per-patient nutrition rates achieved was 74.3-98.2%, suggesting patients do not deviate much from their mean patient-specific nutrition rate. Thus, the ability to tolerate glucose intake varies significantly between, rather than within, patients. CONCLUSIONS: Overall, STAR's protocol-driven changes in nutrition rate provide higher nutrition rates to hyperglycaemic patients than those of 158 ICUs from 20 countries. There is significant inter-patient variability between patients to tolerate and uptake glucose, where intra-patient variability over stay is much lower. Thus, a best nutrition rate is likely patient specific for patients requiring GC. More importantly, these overall outcomes show high nutrition delivery and safe, effective GC are not exclusive and that restricting nutrition for GC does not limit overall nutritional intake compared to other ICUs. PMID- 29330611 TI - A comparison of different sealants preventing demineralization around brackets. AB - AIM: Aim of the study was to compare how six different sealants resisted thermal, mechanical, and chemical loading in vitro. MATERIALS AND METHODS: In all, 120 extracted human, nondecayed molars were divided into six groups (20 samples each) and embedded in resin blocks. The buccal surfaces of the tooth samples were polished and divided into three areas. Area A contained the product to be analyzed, area B was covered with colorless nail varnish (negative control), and area C remained untreated (positive control). The samples were stored in 0.1% thymol solution. To simulate a 3-month thermomechanical load, the samples were subjected to thermal cycling and a cleaning device. After 7 days incubation in a ten Cate demineralization solution (pH value: 4.6), the samples were dissected using a band saw and the lesion depths and demineralization areas were evaluated and compared microscopically. RESULTS: The tooth surfaces treated with PRO SEAL(r) showed no demineralization. Mean lesion depths of 108.1, 119.9, 154.9, 149.2, and 184.5 MUm were found with Alpha-Glaze(r), Seal&Protect(r), Tiefenfluorid(r), Protecto(r), and Fluor Protector, respectively. There was a significant difference between PRO SEAL(r) and the other products (p > 0.0001). There was no significant difference between the other products. CONCLUSION: PRO SEAL(r) resisted thermal, mechanical, and chemical loading in vitro, providing protection against white spot lesions. PMID- 29330613 TI - [Bone replacement materials and antibiotics in revision surgery]. PMID- 29330612 TI - Analysis of the stomatognathic system of children according orthodontic treatment needs. AB - PURPOSE: The present study evaluated electromyographic activity (EMG), masticatory performance, and tongue strength in children without and with orthodontic treatment needs. PATIENTS AND METHODS: A total of 90 children were screened and divided into the following groups: Group I (no treatment needed; mean age: 8.00 +/- 0.43 years; n = 26), Group II (few malocclusions, treatment needed; mean age: 8.89 +/- 0.43 years; n = 28), and Group III (slight-to borderline treatment needed; mean age: 8.44 +/- 0.22 years; n = 36). Orthodontic treatment need was classified on the basis of IOTN-DHC (Index of Orthodontic Treatment Need - Dental Health Component). The electromyographic Trigno EMG Systems was used for muscle analysis and the Iowa Oral Pressure Instrument (IOPI) was used to measure tongue strength. Data were analyzed using normality tests and one-way analysis of variance with a Bonferroni post hoc test (p <= 0.05). RESULTS: EMG in almost all mandibular movements was higher in Group III with statistically significant differences compared to position at rest: right masseter (p = 0.03); protrusion: left temporal (p = 0.02); saliva swallowing: left temporal (p = 0.05) and water swallowing: orbicularis oris mouth, right upper segment (p = 0.05). Lower masticatory performance was found in Group III, but the difference compared to Group I and II was not significant. There were no significant differences between the groups in terms of tongue strength. CONCLUSIONS: Children with borderline orthodontic treatment needs show functional disorders of the stomatognathic system. PMID- 29330615 TI - The parameter identification problem for SIR epidemic models: identifying unreported cases. AB - A SIR epidemic model is analyzed with respect to identification of its parameters, based upon reported case data from public health sources. The objective of the analysis is to understand the relation of unreported cases to reported cases. In many epidemic diseases the ratio of unreported to reported cases is very high, and of major importance in implementing measures for controlling the epidemic. This ratio can be estimated by the identification of parameters for the model from reported case data. The analysis is applied to three examples: (1) the Hong Kong seasonal influenza epidemic in New York City in 1968-1969, (2) the bubonic plague epidemic in Bombay, India in 1906, and (3) the seasonal influenza epidemic in Puerto Rico in 2016-2017. PMID- 29330616 TI - [Magnetic resonance cisternography]. AB - CLINICAL/METHODICAL ISSUE: Conventional MRI can be insufficient to depict certain pathologies of the cerebrospinal fluid (CSF)-filled spaces. STANDARD RADIOLOGICAL METHODS: 3-D T2-weighted sequences and phase-contrast imaging have a high sensitivity for pathologies of the CSF-filled spaces, but are susceptible to artifacts in some cases. METHODICAL INNOVATIONS/PERFORMANCE: Magnetic resonance (MR) cisternography directly depicts the connection between CSF-filled spaces. PMID- 29330614 TI - Effect of ancymidol on cell wall metabolism in growing maize cells. AB - MAIN CONCLUSION: Ancymidol inhibits the incorporation of cellulose into cell walls of maize cell cultures in a gibberellin-independent manner, impairing cell growth; the reduction in the cellulose content is compensated with xylans. Ancymidol is a plant growth retardant which impairs gibberellin biosynthesis. It has been reported to inhibit cellulose synthesis by tobacco cells, based on its cell-malforming effects. To ascertain the putative role of ancymidol as a cellulose biosynthesis inhibitor, we conducted a biochemical study of its effect on cell growth and cell wall metabolism in maize cultured cells. Ancymidol concentrations <= 500 uM progressively reduced cell growth and induced globular cell shape without affecting cell viability. However, cell growth and viability were strongly reduced by ancymidol concentrations >= 1.5 mM. The I50 value for the effect of ancymidol on FW gain was 658 uM. A reversal of the inhibitory effects on cell growth was observed when 500 uM ancymidol-treated cultures were supplemented with 100 uM GA3. Ancymidol impaired the accumulation of cellulose in cell walls, as monitored by FTIR spectroscopy. Cells treated with 500 uM ancymidol showed a ~ 60% reduction in cellulose content, with no further change as the ancymidol concentration increased. Cellulose content was partially restored by 100 uM GA3. Radiolabeling experiments confirmed that ancymidol reduced the incorporation of [14C]glucose into alpha-cellulose and this reduction was not reverted by the simultaneous application of GA3. RT-PCR analysis indicated that the cellulose biosynthesis inhibition caused by ancymidol is not related to a downregulation of ZmCesA gene expression. Additionally, ancymidol treatment increased the incorporation of [3H]arabinose into a hemicellulose enriched fraction, and up-regulated ZmIRX9 and ZmIRX10L gene expression, indicating an enhancement in the biosynthesis of arabinoxylans as a compensatory response to cellulose reduction. PMID- 29330617 TI - Characterizing genomic differences of human cancer stratified by the TP53 mutation status. AB - The key roles of the TP53 mutation in cancer have been well established. TP53 is the most frequently mutated gene, and its inactivation is widespread among human cancer types. However, the landscape of genomic alterations in human cancers stratified by the TP53 mutation has not yet been described. We obtained somatic mutation and copy number change data of 6551 regular-mutated samples from the Cancer Genome Atlas (TCGA) and compared significantly mutated genes (SMGs), copy number alterations, mutational signatures and mutational strand asymmetries between cancer samples with and without the TP53 mutation. We identified 126 SMGs, 30 of which were statistically significant in both the TP53 mutant and wild type groups. Several SMGs, such as VHL, SMAD4 and PTEN, showed a mutation bias towards the TP53 wild-type group, whereas ATRX, IDH1 and RB1 were more prevalent in the TP53 mutant group. Five mutational signatures were extracted from the combined TCGA dataset on which mutational asymmetry analysis was performed, revealing that the TP53 mutant group exhibited substantially greater replication and transcription biases. Furthermore, we found that alterations of multiple genes in a merged mutually exclusive network composed of BRAF, EGFR, PAK1, PIK3CA, PTEN, APC and TERT were related to shortened survival in the TP53 wild type group. In summary, we characterized the genomic differences and similarities underlying human cancers stratified by the TP53 mutation and identified multi gene alterations of a merged mutually exclusive network to be a poor prognostic factor for the TP53 wild-type group. PMID- 29330618 TI - Oleic acid chlorohydrin, a new early biomarker for the prediction of acute pancreatitis severity in humans. AB - BACKGROUND: The early prediction of the severity of acute pancreatitis still represents a challenge for clinicians. Experimental studies have revealed the generation of specific halogenated lipids, in particular oleic acid chlorohydrin, in the early stages of acute pancreatitis. We hypothesized that the levels of circulating oleic acid chlorohydrin might be a useful early prognostic biomarker in acute pancreatitis in humans. METHODS: In a prospective, multicenter cohort study, plasma samples collected within 24 h after presentation in the emergency room from 59 patients with acute pancreatitis and from 9 healthy subjects were assessed for oleic acid chlorohydrin levels. RESULTS: Pancreatitis was mild in 30 patients, moderately severe in 16 and severe in 13. Oleic acid chlorohydrin levels within 24 h after presentation were significantly higher in patients that later progressed to moderate and severe acute pancreatitis. Using 7.49 nM as the cutoff point, oleic acid chlorohydrin distinguished mild from moderately severe to-severe pancreatitis with high sensitivity/specificity (96.6/90.0%) and positive/negative predictive values (90.3/96.4%). Using 32.40 nM as the cutoff value sensitivity, specificity, positive and negative predictive values were all 100% for severe acute pancreatitis. It was found to be a better prognostic marker than BISAP score, hematocrit at 48 h, SIRS at admission, persistent SIRS or C reactive protein at 48 h. CONCLUSIONS: Oleic acid chlorohydrin concentration in plasma is elevated in patients with acute pancreatitis on admission and correlates with a high degree with the final severity of the disease, indicating that it has potential to serve as an early prognostic marker for acute pancreatitis severity. PMID- 29330619 TI - MR arthrography of the hip: diagnostic performance and image quality of 3D-steady state free precession versus 2D turbo spin echo sequences. AB - OBJECTIVE: To retrospectively compare the diagnostic performance of isotropic 3D steady-state free precession (3D-SSFP) sequences with 2D turbo spin-echo proton density-weighted fat-saturated (2D-TSE-PD fs) images in hip magnetic resonance arthrography; arthroscopy was a standard of reference. METHODS: Eighty-one patients with suspected labral tears who underwent hip MR arthrography (3-T scanner) were included. 2D-TSE-PD fs sequences were acquired in three planes and a singular sagittal 3D-SSFP. Labral tears, cartilage pathology and bone marrow were independently assessed by two blinded radiologists using a 5-point Likert scale. Accuracy was determined in 39 patients using invasive arthroscopy. RESULTS: Diagnostic confidence of labral and cartilaginous pathologies based on image quality was rated higher for 3D-SSFP (4.5 +/- 0.8; 4.35 +/- 0.7; p < 0.0001), but inferior for bone marrow pathology (3.9 +/- 0.7; 4.0 +/- 0.7; p < 0.0001). In the arthroscopy patients, similar sensitivity (85.9%) but higher specificity (74.4vs.42.9%) and higher positive and negative predictive values were found in 3D-SSFP of labral and cartilage pathologies. CONCLUSIONS: 3D-SSFP in hip magnetic resonance arthrography offers increased accuracy in detecting labral and cartilage pathologies compared with 2D-TSE-PD, while reducing the acquisition time. A drawback of 3D-SSFP was the inferior diagnostic confidence for bone marrow evaluation; thus, 3D-SSFP should be combined with conventional 2D TSE sequences. PMID- 29330621 TI - Nonuniversal behaviour of helical two-dimensional three-component turbulence. AB - The dynamics of two-dimensional three-component (2D3C) flows is relevant to describe the long-time evolution of strongly rotating flows and/or of conducting fluids with a strong mean magnetic field. We show that in the presence of a strong helical forcing, the out-of-plane component ceases to behave as a passive advected quantity and develops a nontrivial dynamics which deeply changes its large-scale properties. We show that a small-scale helicity injection correlates the input on the 2D component with the one on the out-of-plane component. As a result, the third component develops a nontrivial energy transfer. The latter is mediated by homochiral triads, confirming the strong 3D nature of the leading dynamical interactions. In conclusion, we show that the out-of-plane component in a 2D3C flow enjoys strong nonuniversal properties as a function of the degree of mirror symmetry of the small-scale forcing. PMID- 29330620 TI - Impact of sirtuin-1 expression on H3K56 acetylation and oxidative stress: a double-blind randomized controlled trial with resveratrol supplementation. AB - AIMS: Sirtuin-1 (SIRT-1) down-regulation in type 2 diabetes mellitus (T2DM) has been associated with epigenetic markers of oxidative stress. We herein aim to evaluate whether an increase in SIRT-1 expression affects histone 3 acetylation at the 56 lysine residue (H3K56ac) in T2DM patients randomly selected to receive either resveratrol (40 mg or 500 mg) or a placebo for 6 months. The primary outcome is changes in the H3K56ac level by variation in SIRT-1 expression and the secondary outcome is the evidence of association between SIRT-1 level, antioxidant markers (TAS), and metabolic variables. METHODS AND RESULTS: At baseline, peripheral blood mononuclear cell H3K56ac values among the SIRT-1 tertiles did not differ. At trial end, SIRT-1 levels were significantly higher in patients receiving 500 mg resveratrol. At follow-up, patients were divided into tertiles of delta (trial end minus baseline) SIRT-1 value. Significant reductions in H3K56ac and body fat percentage were found in the highest tertile as were increased TAS levels. A multiple logistic regression model showed that the highest delta SIRT-1 tertile was inversely associated with variations in H3K56ac (OR = 0.66; 95% CI 0.44-0.99), TAS (OR = 1.01; 95% CI 1.00-1.02), and body fat percentage (OR = 0.75; 95% CI 0.58-0.96). CONCLUSIONS: We provide new knowledge on H3K56ac and SIRT-1 association in T2DM. These data suggest that boosting SIRT 1 expression/activation may impact redox homeostasis in these patients. ClinicalTrials.gov Identifier NCT02244879. PMID- 29330622 TI - Association of soil potassium and sodium concentrations with spatial disparities of prevalence and mortality rates of hypertensive diseases in the USA. AB - Crop available soil potassium is generally low and on the decline in the southeastern states of the USA because of the increasing crop and runoff removal and decreasing application of potassium fertilizer. Hypertension-related mortality rates are also high in the southeastern states and are on the rise. Among 41 elements analyzed from 4856 sites across all 48 states, potassium is identified as the only independent element whose soil concentration has significant association with spatial disparities of essential hypertension and hypertension-related mortality rates in the 48 states between 1999 and 2014. Essential hypertension and hypertension-related mortality rates of the 6 states with the lowest soil potassium concentration are about 50-26% higher than that of the 6 states with the highest soil potassium concentration in the 48 states (RR: 1.50, 1.26, low CI 95% 1.47, 1.25 and upper CI 95% 1.53, 1.27, respectively). Though sodium was not identified as an independent factor, an apparent significant inverse correlation exists between hypertension prevalence rates and soil sodium concentration in the 48 states (r = - 0.66, p = 0.00). There likely has been a decline of potassium in USA produces per unit weight over time and a likely association between this decline and increasing hypertension rate, particularly in the southeastern states. Hence, results of this study suggest the need of increasing potassium intakes for reducing hypertension-related mortality rates in the southeastern states. Results of this study also support further examination of potential benefits of sodium from mixture of non-chloride salts in natural produces. PMID- 29330623 TI - Comment on a meta-analysis evaluating the cardiac toxicity of lapatinib in patients with breast cancer and other HER2-positive cancers. PMID- 29330624 TI - Functional transcriptomic annotation and protein-protein interaction network analysis identify NEK2, BIRC5, and TOP2A as potential targets in obese patients with luminal A breast cancer. AB - PURPOSE: Although obesity is a risk factor for breast cancer, little effort has been made in the identification of druggable molecular alterations in obese breast cancer patients. Tumors are controlled by their surrounding microenvironment, in which the adipose tissue is a main component. In this work, we intended to describe molecular alterations at a transcriptomic and protein protein interaction (PPI) level between obese and non-obese patients. METHODS AND RESULTS: Gene expression data of 269 primary breast tumors were compared between normal-weight (BMI < 25, n = 130) and obese (IMC > 30, n = 139) patients. No significant differences were found for the global breast cancer population. However, within the luminal A subtype, upregulation of 81 genes was observed in the obese group (FC >= 1.4). Next, we explored the association of these genes with patient outcome, observing that 39 were linked with detrimental outcome. Their PPI map formed highly compact cluster and functional annotation analyses showed that cell cycle, cell proliferation, cell differentiation, and cellular response to extracellular stimuli were the more altered functions. Combined analyses of genes within the described functions are correlated with poor outcome. PPI network analyses for each function were to search for druggable opportunities. We identified 16 potentially druggable candidates. Among them, NEK2, BIRC5, and TOP2A were also found to be amplified in breast cancer, suggesting that they could act as strategic players in the obese-deregulated transcriptome. CONCLUSION: In summary, our in silico analysis describes molecular alterations of luminal A tumors and proposes a druggable PPI network in obese patients with potential for translation to the clinical practice. PMID- 29330625 TI - Facilitating adherence to endocrine therapy in breast cancer: stability and predictive power of treatment expectations in a 2-year prospective study. AB - PURPOSE: To identify modifiable factors predictive of long-term adherence to adjuvant endocrine therapy (AET). METHODS: As part of a 2-year cohort study in primary care (n = 116), we investigated whether initial treatment expectations predict adherence at 24 months after controlling for demographic, medical, and psychosocial variables. Treatment expectations were measured as necessity-concern beliefs, expected side-effect severity, and expected coping with side effects. Their stability over time and differences of trajectories between the adherent and nonadherent group were examined. RESULTS: Nonadherence at 24 months was 14.7% (n = 17). Side-effect severity at 3 months [OR 0.25, 95% CI (0.08, 0.81), p = 0.02] and necessity-concern beliefs [OR 2.03, 95% CI (1.11, 3.72), p = 0.02] were the sole predictors of adherence. Necessity-concern beliefs remained stable over 2 years, whereas expected side-effect severity (p = 0.01, eta p2 = 0.07) and expected coping with side effects became less optimistic over time (p < 0.001, eta p2 = 0.19), the latter particularly among nonadherers (p < 0.01, eta p2 = 0.10). CONCLUSIONS: Patients' initial necessity-concern beliefs about the AET and early severity of side effects affect long-term adherence. Expecting poor management of side effects may also facilitate nonadherence. We suggest that discussing benefits, addressing concerns of AET, and providing side-effect coping strategies could constitute a feasible and promising option to improve adherence in clinical practice. PMID- 29330626 TI - Low-frequency rTMS in the superior parietal cortex affects the working memory in horizontal axis during the spatial task performance. AB - Spatial working memory has been extensively investigated with different tasks, treatments, and analysis tools. Several studies suggest that low frequency of the repetitive transcranial magnetic stimulation (rTMS) applied to the parietal cortex may influence spatial working memory (SWM). However, it is not yet known if after low-frequency rTMS applied to the superior parietal cortex, according to Pz electroencephalography (EEG) electrode, would change the orientation interpretation about the vertical and horizontal axes coordinates in an SWM task. The current study aims at filling this gap and obtains a better understanding of the low-frequency rTMS effect in SWM. In this crossover study, we select 20 healthy subjects in two conditions (control and 1-Hz rTMS). The subjects performed an SWM task with two random coordinates. Our results presented that low frequency rTMS applied over the superior parietal cortex may influence the SWM to lead to a larger distance of axes interception point (p < 0.05). We conclude that low-frequency rTMS over the superior parietal cortex (SPC) changes the SWM performance, and it has more predominance in horizontal axis. PMID- 29330628 TI - Clinical and CN-SFEMG evaluation of neostigmine test in myasthenia gravis. AB - Neostigmine test (NT) is a pharmacological test, demonstrating a clinical improvement in patients affected by myasthenia gravis (MG). We aim to compare clinical evaluation and neurophysiological recordings by concentric-needle single fiber electromyography (CN-SFEMG) in response to acute administration of neostigmine in ocular and generalized MG patients. Twenty-three MG patients (10 with ocular MG and 13 with generalized MG) were evaluated before and after 90 min neostigmine 0.5-mg administration. Clinical responsiveness was assessed by MG composite (MGC) scale. Neurophysiological evaluation by CN-SFEMG considered analysis of mean value of consecutive differences (MCD), single-pair jitter, and blocks. MGC scores significantly improved after NT in generalized MG patients (MGC 11.1 +/- 7.6 vs 9.1 +/- 6.7, p = 0.02), whereas the improvement was not significant in the ocular group. CN-SFEMG recordings significantly improved after NT in generalized MG patients (MCD 58.9 +/- 18.8 vs 45.9 +/- 23.2 MUs, p = 0.003; single-pair jitter 49.8 +/- 26.9 vs 24.1 +/- 26.7%, p = 0.0001; blocks 6.2 +/- 9.5 vs 2.6 +/- 7.4%, p = 0.03) as well as in ocular MG patients (MCD 50.8 +/- 22.7 vs 40.1 +/- 22.9 MUs, p = 0.01; single-pair jitter 35.9 +/- 23.7 vs 20.0 +/- 25.1%, p = 0.001). CN-SFEMG is a reliable tool to evaluate responsiveness to acute administration of neostigmine in MG. Moreover, neurophysiological modifications to NT could show subclinical improvement in ocular MG better than that of the clinical scale. PMID- 29330629 TI - Giant left atrial myxoma causing acute ischemic stroke in a child. AB - Ischemic stroke is uncommon in pediatric populations and is sometimes caused by cardiac myxoma. In such cases, neurological deficits initially present in ischemic stroke due to emboli or thrombi of the myxoma. Echocardiography is helpful to diagnose myxoma in a timely manner and allows urgent surgical resection of the myxoma. We report a successful case of myxoma in a 7-year-old boy who initially presented with left-sided hemiparesis. PMID- 29330630 TI - Evaluation of pain during high-intensity focused ultrasound ablation of benign thyroid nodules. AB - OBJECTIVE: To assess severity and factors of pain during high-intensity focused ultrasound (HIFU) ablation of benign thyroid nodules. METHODS: 128 patients who underwent a HIFU ablation for a benign thyroid nodule were analysed. All patients received a bolus of intravenous pethidine and diazepam before treatment. After treatment, patients were asked to rate their overall pain experience on a visual analogue scale (0-100) (0 = no pain; 100 = worse possible pain) during treatment, 2 h after treatment and the following morning. Binary logistic regression was performed to evaluate associated factors for pain including patient demographics, nodule size, body mass index (BMI) and treatment parameters. RESULTS: At T1, median (range) pain score was 65.0 (0.00-100.00). Only 16 (12.5 %) patients had a pain score of zero. In multivariate analysis, only lower BMI (OR 1.265, 95 % CI 1.102-1.452, p=0.001) and longer nodule diameter (OR 1.462, 95 % CI 1.071-1.996, p=0.017) were independent factors for pain score at T1 <= 65.0. CONCLUSIONS: A moderate to severe amount of pain was reported during ablation of benign thyroid nodules in over 50 % of patients. Patients' BMI and length of nodule diameter were independent variables for pain during HIFU ablation. KEY POINTS: * Pain was moderate to severe during HIFU ablation of thyroid nodules. * Only one in eight patients reported no pain during ablation. * Level of energy per pulse did not affect pain. * Patients with lower BMI and larger nodules had less pain. PMID- 29330632 TI - Inate immunity in rosacea. Langerhans cells, plasmacytoid dentritic cells, Toll like receptors and inducible oxide nitric synthase (iNOS) expression in skin specimens: case-control study. AB - Rosacea is a chronic inflammatory condition with predominant facial involvement. Because of that, many patients sense that rosacea affects quality of life. The etiology of rosacea remains unknown. Recent studies have suggested that aberrant innate immunity is central to this disease. The aim of this study was to examine the presence of Langerhans cells, plasmacytoid dentritic cells (PDC), the expression of Toll-like receptors (TLR) and inducible oxide nitric synthase (iNOS) in skin of patients with rosacea, to highlight the participation of innate immunity in its pathogenesis. 28 biopsy specimens were taken from patients with clinical and histopathological findings of rosacea. Immunohistochemical demonstration of Langerhans cells (anti-CD1a antibody), PDC (anti-CD 123 antibody), TLR2, TLR4 and iNOS was performed in skin samples and compared with normal skin controls. The expression of Langerhans cells was lower in rosacea group than in control group. PDC were found in skin samples of rosacea as isolated cells and forming small clusters. Expression of TLR2, TLR4 and iNOS was higher in rosacea samples than in normal skin controls. This research demonstrates early and late stage components of innate immunity in specimens of rosacea ratifying the existence of an altered innate immunity in its pathogenesis. PMID- 29330631 TI - Apparent diffusion coefficient mapping using diffusion-weighted MRI: impact of background parenchymal enhancement, amount of fibroglandular tissue and menopausal status on breast cancer diagnosis. AB - OBJECTIVES: To investigate the impact of background parenchymal enhancement (BPE), amount of fibroglandular tissue (FGT) and menopausal status on apparent diffusion coefficient (ADC) values in differentiation between malignant and benign lesions. METHODS: In this HIPAA-compliant study, mean ADC values of 218 malignant and 130 benign lesions from 288 patients were retrospectively evaluated. The differences in mean ADC values between benign and malignant lesions were calculated within groups stratified by BPE level (high/low), amount of FGT (dense/non-dense) and menopausal status (premenopausal/postmenopausal). Sensitivities and specificities for distinguishing malignant from benign lesions within different groups were compared for statistical significance. RESULTS: The mean ADC value for malignant lesions was significantly lower compared to that for benign lesions (1.07+/-0.21 x 10-3 mm2/s vs. 1.53+/-0.26 x 10-3 mm2/s) (p<0.0001). Using the optimal cut-off point of 1.30 x 10-3 mm2/s, an area under the curve of 0.918 was obtained, with sensitivity and specificity both of 87 %. There was no statistically significant difference in sensitivities and specificities of ADC values between different groups stratified by BPE level, amount of FGT or menopausal status. CONCLUSIONS: Differentiation between benign and malignant lesions on ADC values is not significantly affected by BPE level, amount of FGT or menopausal status. KEY POINTS: * ADC allows differentiation between benign and malignant lesions. * ADC is useful for breast cancer diagnosis despite different patient characteristics. * BPE, FGT or menopause do not significantly affect sensitivity and specificity. PMID- 29330633 TI - A seven-center examination of the relationship between monthly volume and mortality in trauma: a hypothesis-generating study. AB - INTRODUCTION: The relationship between trauma volumes and patient outcomes continues to be controversial, with limited data available regarding the effect of month-to-month trauma volume variability on clinical results. This study examines the relationship between monthly trauma volume variations and patient mortality at seven Level I Trauma Centers located in the Eastern United States. We hypothesized that higher monthly trauma volumes may be associated with lower corresponding mortality. METHODS: Monthly patient volume data were collected from seven Level I Trauma Centers. Additional information retrieved included monthly mortality, demographics, mean monthly injury severity (ISS), and trauma mechanism (blunt versus penetrating). Mortality was utilized as the primary study outcome. Statistical corrections for mean age, gender distribution, ISS, and mechanism of injury were made using analysis of co-variance (ANCOVA). Center-specific, annually-adjusted median monthly volumes (CSAA-MMV) were calculated to standardize patient volume differences across participating institutions. Statistical significance was set at alpha < 0.05. RESULTS: A total of 604 months of trauma admissions, encompassing 122,197 patients, were analyzed. Controlling for patient age, gender, ISS, and mechanism of injury, aggregate data suggested that monthly trauma volumes < 100 were associated with significantly greater mortality (3.9%) than months with volumes > 400 (mortality 2.9%, p < 0.01). To account for differences in monthly volumes between centers, as well as for temporal bias associated with potential differences over the entire study duration period, data were normalized using CSAA-MMV as a standardized reference point. Monthly volumes <= 33% of the CSAA-MMV were associated with adjusted mortality of 5.0% whereas monthly volumes >= 134% CSAA-MMV were associated with adjusted mortality of 2.7% (p < 0.01). CONCLUSIONS: This hypothesis-generating study suggests that greater monthly trauma volumes appear to be associated with lower mortality. In addition, our data also suggest that across all participating centers mortality may be a function of relative month-to-month volume variation. When normalized to institution-specific, annually-adjusted "median" monthly trauma contacts, we show that months with patient volumes <= 33% median may be associated with subtly but not negligibly (1.4-2.3%) higher mortality than months with patient volumes >= 134% median. PMID- 29330634 TI - Corrective osteotomies using patient-specific 3D-printed guides: a critical appraisal. AB - INTRODUCTION: Over the last decade, the technique of 3D planning has found its way into trauma surgery. The use of this technique in corrective osteotomies for treatment of malunions provides the trauma surgeon with a powerful tool. However, this technique is not entirely straightforward. We aimed to define potential pitfalls of this technique and possible solutions to overcome these shortcomings. MATERIALS AND METHODS: Ten patients with either a uni-, bi- or triplanar malunion of the long bones were included in this study. These patients were divided into three groups: a weight-bearing group and a non-weight-bearing group, the latter was divided into the humerus group and the forearm group, subsequently. 2D correction parameters were defined and compared within every group, as well as the interpretations of 3D visualization. RESULTS: The weight-bearing group revealed an undercorrection for almost all clinical measurements of the femur and tibia, while there was adequate matching of the osteotomies and of screw entry points in all cases. In the humerus group, coronal correction angles were nearly perfect in all cases, while axial and sagittal correction rates, however, differed substantially. Screw entry points and osteotomies were all at the level as planned. The forearm group showed undercorrection in multiple planes while there were good matching entry points for the screw trajectories. DISCUSSION: Four major pitfalls were encountered using the 3D printing technique: (1) careful examination of the planned guide positioning is mandatory, since suboptimal intra operative guide positioning is most likely the main cause of the incomplete correction; (2) the use of pre-drilled screw holes do not guarantee adequate screw positioning; (3) translation of bone fragments over the osteotomy planes in case of an oblique osteotomy is a potential hazard; (4) the depth of the osteotomy is hard to estimate, potentially leading to extensive cartilage damage. PMID- 29330635 TI - Hypotension due to spinal anesthesia influences fetal circulation in primary caesarean sections. AB - PURPOSE: Hypotension due to spinal anesthesia is a well-known side effect in pregnant women receiving caesarean section. Little is known about its impact on fetal blood circulation. METHODS: 40 women with uncomplicated singleton term pregnancies prepared for caesarean section were prospectively evaluated by Doppler sonography before and immediately after spinal anesthesia. RESULTS: In 90% of the women, blood pressure significantly decreased after spinal anesthesia and 42.5% of the patients suffered from severe hypotension. We found a significant negative correlation between maternal blood pressure change and the resistant index (RI) of the umbilical artery (rs = - 0.376, p = 0.017) and a significant positive correlation between maternal blood pressure and fetal middle cerebral artery. CONCLUSION: Healthy fetuses seem to compensate well in situations with decreased uteroplacental blood flow due to maternal hypotension measured by means of RI changes in the fetal umbilical and middle cerebral artery. This raises the question if growth-restricted and/or preterm fetuses are able to compensate similarly or if general anesthesia would be a method of choice. PMID- 29330636 TI - A randomised trial comparing the pharmacokinetics and safety of the biosimilar CT P6 with reference trastuzumab. AB - PURPOSE: Access to trastuzumab, a valuable anti-cancer treatment, can be limited by cost. The primary aim of this study was to evaluate and compare the PK profiles of CT-P6, a biosimilar of trastuzumab, and US-licensed reference trastuzumab (Herceptin(r)) in healthy subjects. Secondary study aims included comparison of the safety and immunogenicity of CT-P6 and reference trastuzumab in these subjects. METHODS: We performed a single-dose, randomised, double-blind, parallel group study (NCT02665637) comparing CT-P6 with reference trastuzumab (6 mg/kg, 90 min intravenous infusion) in 70 healthy adult males. Pharmacokinetics, safety and immunogenicity were evaluated up to 10 weeks post-dose. Primary endpoints were area under the serum concentration-time curve (AUC) from time 0 to infinity (AUCinf); AUC from time 0 to last quantifiable concentration (AUClast); and observed maximum serum concentration (Cmax). The pre-determined equivalence criterion was a 90% confidence interval of 80-125% for ratios of geometric least squares (LS) means. RESULTS: Equivalence of CT-P6 and reference trastuzumab was demonstrated. Ratios (CT-P6/reference trastuzumab) of geometric LS means (90% confidence interval) were: AUCinf 99.05 (93.00, 105.51); AUClast 99.30 (92.85, 106.20); Cmax 96.58 (90.93, 102.59). Safety profiles were similar; treatment emergent adverse events occurred in ten subjects (28.6%) in the CT-P6 group and 11 (31.4%) in the reference trastuzumab group. No serious adverse events or deaths occurred. No subjects tested positive for anti-drug antibodies. CONCLUSIONS: These data add to the totality of evidence required to demonstrate biosimilarity. A phase III study of CT-P6-in which equivalent neoadjuvant efficacy to reference trastuzumab has been demonstrated-is ongoing. PMID- 29330637 TI - Assessment of the permeability properties of cryopreservation outer bags used in NHSBT. AB - This study was carried out to investigate leakage/transport across the bag material of six outer cryopreservation bags in common use within NHS Blood and Transplant. In order to do this two different leak testing procedures; coloured dye and hydrogen tracer gas, were used. The data obtained show that a coloured dye cannot permeate through the materials both at room temperature and following storage at liquid nitrogen temperature (- 196 degrees C). In addition, when filled with the smallest elemental molecule, hydrogen, in the form of a tracer gas, all of the bags only allowed trace amounts of hydrogen to escape, either through the seal or the bag material. The data indicated that each of the bag materials tested would be capable of preventing bacterial or viral cross contamination as long as the material remained intact. PMID- 29330638 TI - Predictors of severe postoperative hyperglycemia after cardiac surgery in infants: a single-center, retrospective, observational study. AB - PURPOSE: Hyperglycemia is a common issue in infants after cardiac surgery for congenital heart disease. Poor glycemic control is suspected to be associated with adverse postoperative outcomes. This study was performed to investigate clinical factors contributing to hyperglycemia in the perioperative period in infats. METHODS: A total of 69 infants (aged 1-12 months) who were admitted to Yokohama City University Hospital Intensive Care Unit (ICU) after surgical repair of congenital heart diseases with cardiopulmonary bypass (CPB) were retrospectively analysed. Hyperglycemia was defined as blood glucose >= 250 mg/dL on ICU admission. Clinical background, operative factors, and postoperative factors were compared between the hyperglycemic and non-hyperglycemic groups. Additionally, multivariate analysis was performed to identify factors contributing to hyperglycemia. RESULTS: Nineteen (27.5%) and 50 (72.5%) infants were classified into the hyperglycemic and non-hyperglycemic groups, respectively. Hyperglycemic infants were significantly younger, shorter, and weighed less, with a higher rate of chromosomal abnormalities. Intraoperatively, they also experienced longer CPB and surgery times and had higher peak lactate levels and higher inotropic requirements. Hyperglycemia was related to longer mechanical ventilation and longer ICU stays. Multivariate analysis detected intraoperative hyperglycemia, longer CPB time, younger age and chromosomal abnormality as significant factors. CONCLUSION: Adding to hyperglycemia during the operation, longer CPB time younger age and chromosomal abnormality were identified as predictors of high blood glucose levels at ICU admission. PMID- 29330639 TI - Changes in tissue and cerebral oxygenation following spinal anesthesia in infants: a prospective study. AB - Use of spinal anesthesia (SA) in children may address concerns about potential neurocognitive effects of general anesthesia. We used near-infrared spectroscopy (NIRS) to assess the effects of SA on cerebral and tissue oxygenation in 19 patients aged 7 +/- 3 months. Prior to SA placement, NIRS monitors were placed on the forehead (cerebral) and the thigh (tissue). Intraoperative cerebral and tissue saturation were 73 +/- 7 and 80 +/- 11%, respectively, before SA placement. NIRS measurements were monitored every minute for 30 min after SA placement and modeled using mixed-effects linear regression. Regression estimates showed that cerebral saturation remained stable from 67% [95% confidence interval (CI) 63, 71%] after SA placement to 68% (95% CI 65, 72%) at the conclusion of monitoring. After SA placement, tissue saturation was elevated compared to baseline values; but further change [from 91% (95% CI 89, 93%) to 93% (95% CI 91, 95%) at the end of monitoring] was clinically non-significant. All patients breathed spontaneously on room air without changes in oxygen saturation. Blood pressure and heart rate decreased after SA placement, but no changes in hemodynamic parameters required treatment. These data provide further evidence of the neutral effect of SA on cerebral oxygenation 30 min after block placement. PMID- 29330640 TI - Is Contact with Children Related to Legitimizing Beliefs Toward Sex with Children Among Men with Pedophilia? AB - Among pedophilic men, social contact with children has been discussed as creating a risk situation for sexual abuse. Also, pedophilic men searching for such contact are seen as harboring more beliefs legitimizing sexual contact with children. However, social contact may also decrease false beliefs. We tested these competing views in an anonymous Internet survey with a non-forensic, non clinical sample of 104 self-classified pedophilic men. Results showed that both increased social and physical contact were significantly linked to fewer legitimizing beliefs toward sex with children, even when controlling for past psychotherapy, educational level, social desirability, and age. Controlling for previous conviction for child sexual offenses reduced the effect for physical contact, but not for social contact. Exploratory analyses showed that either type of contact had no significant effect on total self-perceived risk of offending. However, pedophilic men with physical contact with children perceived a higher risk of more direct (i.e., child abuse) than indirect offenses (i.e., child pornography offenses) compared to pedophilic men without physical contact. Despite limitations of the correlational design and the only small to moderate effects, the results challenge the assumption that complete avoidance of contact with children is necessary for persons with pedophilia to reduce the risk of abusive behavior. PMID- 29330641 TI - Characteristics of MUTYH variants in Japanese colorectal polyposis patients. AB - BACKGROUND: The base excision repair gene MUTYH is the causative gene of colorectal polyposis syndrome, which is an autosomal recessive disorder associated with a high risk of colorectal cancer. Since few studies have investigated the genotype-phenotype association in Japanese patients with MUTYH variants, the aim of this study was to clarify the clinicopathological findings in Japanese patients with MUTYH gene variants who were detected by screening causative genes associated with hereditary colorectal polyposis. METHODS: After obtaining informed consent, genetic testing was performed using target enrichment sequencing of 26 genes, including MUTYH. RESULTS: Of the 31 Japanese patients with suspected hereditary colorectal polyposis, eight MUTYH variants were detected in five patients. MUTYH hotspot variants known for Caucasians, namely p.G396D and p.Y179D, were not among the detected variants.Of five patients, two with biallelic MUTYH variants were diagnosed with MUTYH-associated polyposis, while two others had monoallelic MUTYH variants. One patient had the p.P18L and p.G25D variants on the same allele; however, supportive data for considering these two variants 'pathogenic' were lacking. CONCLUSIONS: Two patients with biallelic MUTYH variants and two others with monoallelic MUTYH variants were identified among Japanese colorectal polyposis patients. Hotspot variants of the MUTYH gene for Caucasians were not hotspots for Japanese patients. PMID- 29330642 TI - Meta-analysis of randomized clinical trials in the era of individual patient data sharing. AB - BACKGROUND: Individual patient data (IPD) meta-analysis is considered to be a gold standard when the results of several randomized trials are combined. Recent initiatives on sharing IPD from clinical trials offer unprecedented opportunities for using such data in IPD meta-analyses. METHODS: First, we discuss the evidence generated and the benefits obtained by a long-established prospective IPD meta analysis in early breast cancer. Next, we discuss a data-sharing system that has been adopted by several pharmaceutical sponsors. We review a number of retrospective IPD meta-analyses that have already been proposed using this data sharing system. Finally, we discuss the role of data sharing in IPD meta-analysis in the future. RESULTS: Treatment effects can be more reliably estimated in both types of IPD meta-analyses than with summary statistics extracted from published papers. Specifically, with rich covariate information available on each patient, prognostic and predictive factors can be identified or confirmed. Also, when several endpoints are available, surrogate endpoints can be assessed statistically. CONCLUSIONS: Although there are difficulties in conducting, analyzing, and interpreting retrospective IPD meta-analysis utilizing the currently available data-sharing systems, data sharing will play an important role in IPD meta-analysis in the future. PMID- 29330643 TI - Antihypertensive Medication and Dementia Risk in Older Adult African Americans with Hypertension: A Prospective Cohort Study. AB - BACKGROUND: African Americans are especially at risk of hypertension and dementia. Antihypertensive medications reduce the risk of cardiovascular events, but may also reduce the risk of dementia. OBJECTIVE: To assess the longitudinal effects of antihypertensive medications and blood pressure on the onset of incident dementia in a cohort of African Americans. DESIGN: Prospective cohort. PARTICIPANTS: 1236 community-dwelling patients from an inner-city public health care system, aged 65 years and older, with a history of hypertension but no history of dementia, and who had at least three primary care visits and a prescription filled for any medication. MAIN MEASURES: Blood pressure was the average of three seated measurements. Dementia was diagnosed using a two-stage design, with a screening evaluation every 2 to 3 years followed by a comprehensive in-home clinical evaluation for those with a positive screen. Laboratory, inpatient and outpatient encounter data, coded diagnoses and procedures, and medication records were derived from a health information exchange. KEY RESULTS: Of the 1236 hypertensive participants without dementia at baseline, 114 (9%) developed incident dementia during follow-up. Individuals prescribed any antihypertensive medication (n = 816) were found to have a significantly reduced risk of dementia (HR = 0.57, 95% CI 0.37-0.88, p = 0.0114) compared to untreated hypertensive participants (n = 420). When this analysis was repeated including a variable indicating suboptimally treated blood pressure (> 140 mmHg systolic or >90 mmHg diastolic), the effect of antihypertensive medication was no longer statistically significant (HR = 0.65, 95% CI 0.32-1.30, p = 0.2217). CONCLUSIONS: Control of blood pressure in older adult African American patients with hypertension is a key intervention for preventing dementia, with similar benefits from most of the commonly available antihypertensive medications. PMID- 29330644 TI - Hydrocarbon Stapled Antimicrobial Peptides. AB - Antimicrobial peptides are promising candidates for anti-infective pharmaceuticals. Unfortunately, because of their low proteolytic and chemical stability, their usage is generally narrowed down to topical formulations. Until now, numerous approaches to increase peptide stability have been proposed. One of them, peptide hydrocarbon stapling, a modification based on stabilizing peptide secondary structure with a side-chain covalent hydrocarbon bridge, have been successfully applied to many peptides. Moreover, constraining secondary structure of peptides have also been proven to increase their biological activity. This review article describes studies on hydrocarbon stapled antimicrobial peptides with respect to improved drug-like properties. PMID- 29330645 TI - Delayed leptomeningeal metastasis of an adult anaplastic pilocytic astrocytoma. PMID- 29330646 TI - Potential impact of SGLT2 inhibitors on left ventricular diastolic function in patients with diabetes mellitus. AB - The pathogenesis of diabetes mellitus (DM)-related cardiac dysfunction is thought to be multifactorial, and possibly a key factor for the development of heart failure with preserved ejection fraction (HFpEF) in patients with DM and preserved left ventricular (LV) ejection fraction. Currently, there is no effective treatment for HFpEF, which is presented as LV diastolic dysfunction. Furthermore, it is well known that, in addition to DM, hypertension and overweight/obesity are also important factors associated with HFpEF. Sodium glucose cotransporter 2 (SGLT2) inhibitors are a new class of diabetic medications indicated only for the treatment of type 2 DM, and a recent clinical trial showed that patients with this disease and at high risk for cardiovascular events attained cardiovascular benefits from SGLT2 inhibitor in comparison with placebo efficacy. In addition to reduction of glycated hemoglobin levels in patients with type 2 DM, SGLT2 inhibitors are associated with weight loss and reductions in blood pressure. However, despite such intriguing results, it remains uncertain whether SGLT2 inhibitors are beneficial for LV diastolic function in patients with DM. This review deals with the impact of SGLT2 inhibitors on LV diastolic function in patients with DM and their current potential for prevention of the future development of HFpEF in such patients. PMID- 29330647 TI - Absence of the Nitrous Oxide Reductase Gene Cluster in Commercial Alfalfa Inoculants Is Probably Due to the Extensive Loss of Genes During Rhizobial Domestication. AB - As other legume crops, alfalfa cultivation increases the emission of the greenhouse gas nitrous oxide (N2O). Since legume-symbiotic nitrogen-fixing bacteria play a crucial role in this emission, it is important to understand the possible impacts of rhizobial domestication on the evolution of denitrification genes. In comparison with the genomes of non-commercial strains, those of commercial alfalfa inoculants exhibit low total genome size, low number of ORFs and high numbers of both frameshifted genes and pseudogenes, suggesting a dramatic loss of genes during bacterial domestication. Genomic analysis focused on denitrification genes revealed that commercial strains have perfectly conserved the nitrate (NAP), nitrite (NIR) and nitric (NOR) reductase clusters related to the production of N2O from nitrate but completely lost the nitrous oxide (NOS) reductase cluster (nosRZDFYLX genes) associated with the reduction of N2O to gas nitrogen. Based on these results, we propose future screenings for alfalfa-nodulating isolates containing both nitrogen fixation and N2O reductase genes for environmental sustainability of alfalfa production. PMID- 29330648 TI - Cloning, expression and characterization of the esterase estUT1 from Ureibacillus thermosphaericus which belongs to a new lipase family XVIII. AB - A new esterase gene from thermophilic bacteria Ureibacillus thermosphaericus was cloned into the pET32b vector and expressed in Escherichia coli BL21(DE3). Alignment of the estUT1 amino acid sequence revealed the presence of a novel canonical pentapeptide (GVSLG) and 41-47% identity to the closest family of the bacterial lipases XIII. Thus the esterase estUT1 from U. thermosphaericus was assigned as a member of the novel family XVIII. It also showed a strong activity toward short-chain esters (C2-C8), with the highest activity for C2. When p nitrophenyl butyrate is used as a substrate, the temperature and pH optimum of the enzyme were 70-80 degrees C and 8.0, respectively. EstUT1 showed high thermostability and 68.9 +/- 2.5% residual activity after incubation at 70 degrees C for 6 h. Homology modeling of the enzyme structure showed the presence of a putative catalytic triad Ser93, Asp192, and His222. The activity of estUT1 was inhibited by PMSF, suggesting that the serine residue is involved in the catalytic activity of the enzyme. The purified enzyme exhibited high stability in organic solvents. EstUT1 retained 85.8 +/- 2.4% residual activity in 30% methanol at 50 degrees C for 6 h. Stability at high temperature and tolerance to organic solvents make estUT1 a promising enzyme for biotechnology application. PMID- 29330649 TI - Growth of Leptospirillum ferriphilum in sulfur medium in co-culture with Acidithiobacillus caldus. AB - Leptospirillum ferriphilum and Acidithiobacillus caldus are both thermotolerant acidophilic bacteria that frequently co-exist in natural and man-made environments, such as biomining sites. Both are aerobic chemolithotrophs; L. ferriphilum is known only to use ferrous iron as electron donor, while A. caldus can use zero-valent and reduced sulfur, and also hydrogen, as electron donors. It has recently been demonstrated that A. caldus reduces ferric iron to ferrous when grown aerobically on sulfur. Experiments were carried out which demonstrated that this allowed L. ferriphilum to be sustained for protracted periods in media containing very little soluble iron, implying that dynamic cycling of iron occurred in aerobic mixed cultures of these two bacteria. In contrast, numbers of viable L. ferriphilum rapidly declined in mixed cultures that did not contain sulfur. Data also indicated that growth of A. caldus was partially inhibited in the presence of L. ferriphilum. This was shown to be due to greater sensitivity of the sulfur-oxidizer to ferric than to ferrous iron, and to highly positive redox potentials, which are characteristic of cultures containing Leptospirillum spp. The implications of these results in the microbial ecology of extremely acidic environments and in commercial bioprocessing applications are discussed. PMID- 29330650 TI - A cold-adapted endoglucanase from camel rumen with high catalytic activity at moderate and low temperatures: an anomaly of truly cold-adapted evolution in a mesophilic environment. AB - Endoglucanases are important enzymes in plant biomass degradation. They have current and potential applications in various industrial sectors including human and animal food processing, textile, paper, and renewable biofuel production. It is assumed that the cold-active endoglucanases, with high catalytic rates in moderate and cold temperatures, can improve the cost-effectiveness of industrial processes by lowering the need for heating and, thus, energy consumption. In this study, the endoglucanase CelCM3 was procured from a camel rumen metagenome via gene cloning and expression in Escherichia coli BL21 (DE3). The maximum activity of the enzyme on carboxymethyl cellulose (CMC) was obtained at pH 5 and 30 degrees C with a Vmax and Km of 339 U/mg and 2.57 mg/ml, respectively. The enzyme with an estimated low melting temperature of 45 degrees C and about 50% activity at 4 degrees C was identified to be cold-adapted. A thermodynamic analysis corroborated that CelCM3 with an activation energy (Ea), enthalpy of activation (DeltaH), and Gibb's free energy (DeltaG) of, respectively, 18.47 kJ mol-1, 16.12 kJ mol-1, and 56.09 kJ mol-1 is a cold-active endoglucanase. In addition, CelCM3 was tolerant of metal ions, non-ionic detergents, urea, and organic solvents. Given these interesting characteristics, CelCM3 shows promise to meet the requirements of industrial applications. PMID- 29330651 TI - 3D-computed tomography to compare the dimensions of the left atrial appendage in patients with normal sinus rhythm and those with paroxysmal atrial fibrillation. AB - Although paroxysmal atrial fibrillation (PAF) is an important cause of cardioembolic stroke, in contrast to chronic AF patients, the anatomical features of the left atrial appendage (LAA) in PAF patients remain unknown. Here, we investigated differences in LAA structures in patients with PAF and those with normal sinus rhythms (NSR) using 3D-computed tomography (3D-CT), which allows us to visualize complicated LAA structures at high spatial resolution. Study subjects were 30 consecutive PAF and 30 NSR patients with complete enhanced cardiac 3D-CT images available. After reconstruction of 3D LAA images, anatomical parameters of the LAA were measured and compared according to three proposed definitions of the LAA orifice plane determined by the following anatomical landmarks: DEF#1, center of warfarin ridge and centerline of proximal left circumflex artery; DEF#2, slope of warfarin ridge and mitral valve annulus; DEF#3, observers' discretion by progressive rotation using the observers' best estimate without the use of landmarks. The LAA volumes of the PAF groups were significantly greater than the NSR group according to all 3 definitions (DEF#1: 1.43 times, DEF#2: 1.44 times, and DEF#3: 1.36 times greater). The LAA orifice area was significantly larger in PAF than in NSR according to DEF#2, but was similar by DEF#1 and DEF#3. Intra-observer and inter-observer variations for any LAA measurements were very low. In conclusion, 3D-CT-based quantitative assessment of the LAA provides highly reproducible and detailed measurements, which can successfully discriminate differences of LAA volume between patients with NSR and those with PAF, suggesting significantly greater volumes in the latter. PMID- 29330653 TI - Aurora D. Pryor, M.D. PMID- 29330652 TI - Dietary Management in the Immediate Preoperative Period of Bariatric Surgery: a National Overview : Bariatric Preoperative Diets. AB - BACKGROUND: Although widely applied, there is no consensus about the characteristics of the diets prescribed in the immediate preoperative period of bariatric surgery (BS). The objective of this study was to perform a survey on preoperative dietary management in BS centers. METHODS: This was a cross sectional study with BS Brazilian centers. Only BS centers with certificate of excellence by Surgical Review Corporation were included. An electronic questionnaire was applied to assess details about the dietary management in the immediate preoperative period of BS. RESULTS: Of the 15 centers invited, 80% (n = 12) answered the questionnaire. Preoperative weight loss was required to patients in all 12 centers. For 8.3% (n = 1), this request was applied to all patients; 91.7% (n = 11) of the centers requested weight loss in specific cases. Ten (83.3%) centers prescribed restrictive diets; none of these adopted a standard dietary protocol. The caloric value of the diets ranged from 800 to 2000 kcal/day. The duration of the diet ranged from 10 to 20 days in 40% (n = 4) of the centers and from 20 to 90 days in 60% (n = 6) of the centers. Dietary prescription was based on team consensus in 100% (n = 12) of the centers. In 33.3% (n = 4) of the centers, scientific evidence supporting dietary prescription was cited. CONCLUSION: This study identified the frequent practice of requesting preoperative weight loss and the diversity of diets used in the immediate preoperative period by Brazilian BS centers. Future guideline proposal is needed on preoperative BS diets. PMID- 29330654 TI - Risk Prediction Model for Severe Postoperative Complication in Bariatric Surgery. AB - BACKGROUND: Factors associated with risk for adverse outcome are important considerations in the preoperative assessment of patients for bariatric surgery. As yet, prediction models based on preoperative risk factors have not been able to predict adverse outcome sufficiently. OBJECTIVE: This study aimed to identify preoperative risk factors and to construct a risk prediction model based on these. METHODS: Patients who underwent a bariatric surgical procedure in Sweden between 2010 and 2014 were identified from the Scandinavian Obesity Surgery Registry (SOReg). Associations between preoperative potential risk factors and severe postoperative complications were analysed using a logistic regression model. A multivariate model for risk prediction was created and validated in the SOReg for patients who underwent bariatric surgery in Sweden, 2015. RESULTS: Revision surgery (standardized OR 1.19, 95% confidence interval (CI) 1.14-0.24, p < 0.001), age (standardized OR 1.10, 95%CI 1.03-1.17, p = 0.007), low body mass index (standardized OR 0.89, 95%CI 0.82-0.98, p = 0.012), operation year (standardized OR 0.91, 95%CI 0.85-0.97, p = 0.003), waist circumference (standardized OR 1.09, 95%CI 1.00-1.19, p = 0.059), and dyspepsia/GERD (standardized OR 1.08, 95%CI 1.02-1.15, p = 0.007) were all associated with risk for severe postoperative complication and were included in the risk prediction model. Despite high specificity, the sensitivity of the model was low. CONCLUSION: Revision surgery, high age, low BMI, large waist circumference, and dyspepsia/GERD were associated with an increased risk for severe postoperative complication. The prediction model based on these factors, however, had a sensitivity that was too low to predict risk in the individual patient case. PMID- 29330655 TI - Effectiveness for dentin hypersensitivity treatment of non-carious cervical lesions: a meta-analysis. AB - OBJECTIVE: The aim of this review is to conduct a systematic review and meta analysis comparing the effectiveness of in-home or in-office treatments for dentin hypersensitivity. MATERIALS AND METHODS: An electronic search without restriction on dates or languages was performed in four electronic databases until March 2017. In addition, hand-searches in regular journals and in the gray literature were also conducted. To develop the search strategy, clinical questions were formulated using the PICOS method. Eligibility criteria included randomized clinical trials (RCTs) that compared the effectiveness of different agents for the treatment of dentin hypersensitivity through chemical occlusion, physical occlusion, nerve desensitization, or photobiomodulation (low-level light therapy). This systematic review was registered in PROSPERO under number CRD42016039394. RESULTS: Twenty-five RCTs (16 parallel; 9 split-mouth), published from 1992 to 2016, were included. The results of the meta-analysis showed that in office subgroups treated with chemical or physical occlusion of dentin tubules and nerve desensitization had a statistically significant difference from placebo, with P < 0.00001, P < 0.00001, and P = 0.02, respectively. For in-home treatments, the results of the meta-analysis showed that only those subgroups treated with chemical occlusion of dentin tubules and nerve desensitization exhibited a statistically significant difference from placebo, with P < 0.00001 and P = 0.03, respectively. CONCLUSIONS: The results of pairwise meta-analysis suggest that among in-office treatments, dentinal tubule occlusion (whether chemical or physical) and nerve desensitization provide the best outcomes for treatment of dentin hypersensitivity. For in-home treatments, only chemical occlusion of dentin tubules and nerve desensitization showed a greater treatment efficacy than placebo and the difference was statistically significant. PMID- 29330657 TI - The T1 shine through effect on susceptibility weighted imaging: an under recognized phenomenon. PMID- 29330656 TI - 3D imaging, 3D printing and 3D virtual planning in endodontics. AB - The adoption and adaptation of recent advances in digital technology, such as three-dimensional (3D) printed objects and haptic simulators, in dentistry have influenced teaching and/or management of cases involving implant, craniofacial, maxillofacial, orthognathic and periodontal treatments. 3D printed models and guides may help operators plan and tackle complicated non-surgical and surgical endodontic treatment and may aid skill acquisition. Haptic simulators may assist in the development of competency in endodontic procedures through the acquisition of psycho-motor skills. This review explores and discusses the potential applications of 3D printed models and guides, and haptic simulators in the teaching and management of endodontic procedures. An understanding of the pertinent technology related to the production of 3D printed objects and the operation of haptic simulators are also presented. PMID- 29330658 TI - Patient-specific model-based segmentation of brain tumors in 3D intraoperative ultrasound images. AB - PURPOSE: Intraoperative ultrasound (iUS) imaging is commonly used to support brain tumor operation. The tumor segmentation in the iUS images is a difficult task and still under improvement because of the low signal-to-noise ratio. The success of automatic methods is also limited due to the high noise sensibility. Therefore, an alternative brain tumor segmentation method in 3D-iUS data using a tumor model obtained from magnetic resonance (MR) data for local MR-iUS registration is presented in this paper. The aim is to enhance the visualization of the brain tumor contours in iUS. METHODS: A multistep approach is proposed. First, a region of interest (ROI) based on the specific patient tumor model is defined. Second, hyperechogenic structures, mainly tumor tissues, are extracted from the ROI of both modalities by using automatic thresholding techniques. Third, the registration is performed over the extracted binary sub-volumes using a similarity measure based on gradient values, and rigid and affine transformations. Finally, the tumor model is aligned with the 3D-iUS data, and its contours are represented. RESULTS: Experiments were successfully conducted on a dataset of 33 patients. The method was evaluated by comparing the tumor segmentation with expert manual delineations using two binary metrics: contour mean distance and Dice index. The proposed segmentation method using local and binary registration was compared with two grayscale-based approaches. The outcomes showed that our approach reached better results in terms of computational time and accuracy than the comparative methods. CONCLUSION: The proposed approach requires limited interaction and reduced computation time, making it relevant for intraoperative use. Experimental results and evaluations were performed offline. The developed tool could be useful for brain tumor resection supporting neurosurgeons to improve tumor border visualization in the iUS volumes. PMID- 29330659 TI - Coffee with a high content of chlorogenic acids and low content of hydroxyhydroquinone improves postprandial endothelial dysfunction in patients with borderline and stage 1 hypertension. AB - PURPOSE: The purpose of this study was to evaluate acute effects of coffee with a high content of chlorogenic acids and different hydroxyhydroquinone contents on postprandial endothelial dysfunction. METHODS: This was a single-blind, randomized, placebo-controlled, crossover-within-subject clinical trial. A total of 37 patients with borderline or stage 1 hypertension were randomized to two study groups. The participants consumed a test meal with a single intake of the test coffee. Subjects in the Study 1 group were randomized to single intake of coffee with a high content of chlorogenic acids and low content of hydroxyhydroquinone or coffee with a high content of chlorogenic acids and a high content of hydroxyhydroquinone with crossover. Subjects in the Study 2 group were randomized to single intake of coffee with a high content of chlorogenic acids and low content of hydroxyhydroquinone or placebo coffee with crossover. Endothelial function assessed by flow-mediated vasodilation and plasma concentration of 8-isoprostanes were measured at baseline and at 1 and 2 h after coffee intake. RESULTS: Compared with baseline values, single intake of coffee with a high content of chlorogenic acids and low content of hydroxyhydroquinone, but not coffee with a high content of chlorogenic acids and high content of hydroxyhydroquinone or placebo coffee, significantly improved postprandial flow mediated vasodilation and decreased circulating 8-isoprostane levels. CONCLUSIONS: These findings suggest that a single intake of coffee with a high content of chlorogenic acids and low content of hydroxyhydroquinone is effective for improving postprandial endothelial dysfunction. CLINICAL TRIAL REGISTRATION: URL for Clinical Trial: https://upload.umin.ac.jp ; Registration Number for Clinical Trial: UMIN000013283. PMID- 29330660 TI - Theobromine consumption does not improve fasting and postprandial vascular function in overweight and obese subjects. AB - BACKGOUND: Theobromine, a component of cocoa, may favorably affect conventional lipid-related cardiovascular risk markers, but effects on flow-mediated dilation (FMD) and other vascular function markers are not known. OBJECTIVE: To evaluate the effects of 4-week theobromine consumption (500 mg/day) on fasting and postprandial vascular function markers. DESIGN: In a randomized, double-blind crossover study, 44 apparently healthy overweight (N = 30) and obese (N = 14) men and women with low HDL-C concentrations, consumed daily 500 mg theobromine or placebo for 4 weeks. After 4 weeks, FMD, peripheral arterial tonometry (PAT), augmentation index (AIx), pulse wave velocity (PWV), blood pressure (BP) and retinal microvasculature measurements were performed. These measurements were carried out under fasting conditions and 2.5 h after a high-fat mixed meal challenge. RESULTS: 4-week theobromine consumption did not change fasting vascular function markers, except for a decrease in central AIx (cAIx, - 1.7 pp, P = 0.037) and a trend towards smaller venular calibers (- 2 um, P = 0.074). Consuming a high-fat mixed meal decreased FMD (0.89 pp, P = 0.002), reactive hyperemia index (RHI, - 0.30, P < 0.001), peripheral systolic BP (SBP, - 3 mmHg, P <= 0.001), peripheral diastolic BP (DBP, - 2 mmHg, P <= 0.001), central SBP (- 6 mmHg, P <= 0.001) and central DBP (- 2 mmHg, P <= 0.001), but increased heart rate (HR, 2 bpm, P < 0.001). Theobromine did not modify these postprandial effects, but increased postprandially the brachial artery diameter (0.03 cm, P = 0.015), and decreased the cAIx corrected for a HR of 75 (cAIx75, - 5.0 pp, P = 0.004) and peripheral AIx (pAIx, - 6.3 pp, P = 0.017). CONCLUSION: Theobromine consumption did not improve fasting and postprandial endothelial function, but increased postprandial peripheral arterial diameters and decreased the AIx. These findings do not suggest that theobromine alone contributes to the proposed cardioprotective effects of cocoa. This trial was registered on clinicaltrials.gov under study number NCT02209025. PMID- 29330661 TI - Adipose tissue fatty acids present in dairy fat and risk of stroke: the Danish Diet, Cancer and Health cohort. AB - PURPOSE: The role of dairy fat for the risk of stroke is not yet clear. Adipose tissue reflects long-term fatty acid intake and metabolism. We, therefore, investigated associations for percentages of adipose tissue fatty acids, for which dairy products are a major source (12:0, 14:0, 14:1 cis-9, 15:0, 17:0, 18:1 trans-11 and 18:2 cis-9, trans-11), with incident total stroke and stroke subtypes. METHODS: We conducted a case-cohort study within the Danish Diet, Cancer and Health cohort, including all incident stroke cases (n = 2108) and a random sample of the total cohort (n = 3186). The fatty acid composition of adipose tissue biopsies was determined by gas chromatography and specific fatty acids were expressed as percentage of total fatty acids. Stroke cases were identified in the Danish National Patient Registry and the diagnoses were individually verified. RESULTS: We recorded 2108 stroke cases of which 1745 were ischemic, 249 were intracerebral hemorrhages and 102 were subarachnoid hemorrhages. We observed a lower rate of ischemic stroke for a higher adipose tissue percentage of 12:0, 14:0, 15:0, 17:0, 18:1 trans-11 and 18:2 cis-9, trans 11. Adipose tissue percentages of 15:0 and 18:1 trans-11 were also inversely associated with intracerebral hemorrhage, whereas no associations between the adipose tissue fatty acids and subarachnoid hemorrhage were observed. No associations between 14:1 cis-9 and ischemic or hemorrhagic stroke were found. CONCLUSIONS: Our results suggest that a larger percentage in adipose tissue of fatty acids for which dairy products are a major source is associated with a lower rate of ischemic stroke. PMID- 29330662 TI - Yogurt consumption is associated with higher nutrient intake, diet quality and favourable metabolic profile in children: a cross-sectional analysis using data from years 1-4 of the National diet and Nutrition Survey, UK. AB - PURPOSE: Yogurt consumption has been associated with higher nutrient intakes, better diet quality and improved metabolic profiles in adults. Few studies have investigated these associations in children. This study investigated the association of yogurt consumption with nutrient intakes, diet quality and metabolic profile in British children. METHODS: Data from 1687 children aged 4 10 and 11-18 years of the National Diet and Nutrition Survey (NDNS) years 1-4 were analysed. Yogurt consumption was determined using a 4-day diet diary. Diet quality was assessed by the Healthy Eating Index 2010 (HEI-2010). Anthropometric measures, blood pressure, pulse pressure, plasma glucose, HbA1c, C-reactive protein, triacylglycerol, total cholesterol, high-and low-density cholesterol from NDNS were used. RESULTS: The highest tertile of yogurt consumption (T3) was associated with higher nutrient intakes, particularly for calcium (children 4-10 years: P < 0.0001; children 11-18 years P = 0.001), iodine (both age groups P < 0.0001) and riboflavin (both age groups P < 0.0001), and HEI-2010 score (both age groups P < 0.0001) in children aged 4-10 years (mean +/- SD: 98.4 +/- 35.7 g yogurt/day) and 11-18 years (mean +/- SD: 105.4 +/- 37.5 g yogurt/day) compared with non-consumers (0 g yogurt/d). Yogurt consumption was associated with significantly lower pulse pressure in children aged 4-10 years and lower HbA1c concentration, being shorter and having a larger hip circumference in children aged 11-18 years, compared with non-yogurt consumers. CONCLUSION: This study suggests that British children who are yogurt consumers (> 60 g/day) have higher overall diet quality, nutrient intakes and adequacy, lower pulse pressure (children aged 4-10 years) and HbA1c concentrations (children aged 11-18 years), were shorter and had a smaller hip circumference (children aged 11-18 years). PMID- 29330663 TI - Human cytomegalovirus-encoded miR-UL112 contributes to HCMV-mediated vascular diseases by inducing vascular endothelial cell dysfunction. AB - Human cytomegalovirus (HCMV) infection has been linked to the pathogenesis of vasculopathy by inducing dysfunction of vascular cells such as endothelial cells. Hcmv-miR-UL112 is the most well-characterized HCMV-encoded microRNA occurring in the plasma of patients with cardiovascular diseases such as hypertension, while the specific underlying pathophysiological mechanisms are yet to be defined. The current study investigated the effect of hcmv-miR-UL112 on the growth and proliferation of human umbilical vascular endothelial cells (HUVECs); it might also be associated with signaling pathways. An adenovirus vector was designed and synthesized to stably express hcmv-miR-UL112 in HUVECs. Cell Counting Kit-8 results showed that ectopically expressed hcmv-miR-UL112 can significantly increase the proliferation of HUVECs (p < 0.05). Flow cytometry revealed that the S-phase fraction in the cell cycle analysis was raised significantly after overexpression of hcmv-miR-UL112 (p < 0.05). Gene expression profile analysis, using the microarray technology, revealed 303 up-regulated and 62 down-regulated genes in HUVECs by comparing the AD-hcmv-miR-UL112-infected and control groups (p < 0.05 and > 2 fold change). Kyoto Encyclopedia of Genes and Genomes and Reactome Pathway, chosen as the functional annotation categories, were affected by hcmv miR-UL112 adenovirus vector. The significantly altered pathways mainly include the mitogen-activated protein kinase signaling pathway, cell adhesion molecules, chemokine signaling pathway, cytokine-cytokine receptor interaction, circadian rhythm-mammal, mineral absorption, protein processing in the endoplasmic reticulum, proximal tubule bicarbonate reclamation, vasopressin-regulated water reabsorption, and arachidonic acid metabolism. In conclusion, hcmv-miR-UL112 could serve as a potential biomarker, and the miRNA-mediated regulation of signaling pathways might play significant roles in the physiological effects of hcmv-associated diseases. PMID- 29330664 TI - An Iranian genomic sequence of Beet mosaic virus provides insights into diversity and evolution of the world population. AB - Beet mosaic virus (BtMV), the only Potyvirus known to infect sugar beet, occurs worldwide in beet crops. The full genome sequencing of a BtMV isolate from Iran (Ir-VRU), enabled us to better understand the evolutionary history of this virus. Selection analysis suggested that BtMV evolution is mainly under negative selection but its strength varies in different proteins with the multifunctional proteins under strongest selection. Recombination has played a major role in the evolution of the BtMVs; only the Ir-VRU and USA isolates show no evidence of recombination. The ML phylogenies of BtMVs from coat protein and full sequences were completely congruent. The primary divergence of the BtMV phylogeny is into USA and Eurasian lineages, and the latter then divides to form a cluster only found in Iran, and a sister cluster that includes all the European and Chinese isolates. A simple patristic dating method estimated that the primary divergence of the BtMV population was only 360 (range 260-490) years ago, suggesting an emergence during the development of sugar beet as a crop over the past three centuries rather than with the use of leaf beet as a vegetable for at least 2000 years. PMID- 29330665 TI - A synthetic pathway for the production of 2-hydroxyisovaleric acid in Escherichia coli. AB - Synthetic biology, encompassing the design and construction of novel artificial biological pathways and organisms and the redesign of existing natural biological systems, is rapidly expanding the number of applications for which biological systems can play an integral role. In the context of chemical production, the combination of synthetic biology and metabolic engineering approaches continues to unlock the ability to biologically produce novel and complex molecules from a variety of feedstocks. Here, we utilize a synthetic approach to design and build a pathway to produce 2-hydroxyisovaleric acid in Escherichia coli and demonstrate how pathway design can be supplemented with metabolic engineering approaches to improve pathway performance from various carbon sources. Drawing inspiration from the native pathway for the synthesis of the 5-carbon amino acid L-valine, we exploit the decarboxylative condensation of two molecules of pyruvate, with subsequent reduction and dehydration reactions enabling the synthesis of 2 hydroxyisovaleric acid. Key to our approach was the utilization of an acetolactate synthase which minimized kinetic and regulatory constraints to ensure sufficient flux entering the pathway. Critical host modifications enabling maximum product synthesis from either glycerol or glucose were then examined, with the varying degree of reduction of these carbons sources playing a major role in the required host background. Through these engineering efforts, the designed pathway produced 6.2 g/L 2-hydroxyisovaleric acid from glycerol at 58% of maximum theoretical yield and 7.8 g/L 2-hydroxyisovaleric acid from glucose at 73% of maximum theoretical yield. These results demonstrate how the combination of synthetic biology and metabolic engineering approaches can facilitate bio based chemical production. PMID- 29330666 TI - Heidegger, communication, and healthcare. AB - Communication between medical professionals and patients is an important aspect of therapy and patient satisfaction. Common barriers that get in the way of effective communication in this sphere include: (1) gender, age, and cultural differences; (2) physical or psychological discomfort or pain; (3) medical literacy; and (4) distraction due to technological factors or simply being overworked. The author examines these communicative barriers from a philosophical lens and then utilizes Martin Heidegger's phenomenology and hermeneutics to provide guidance for medical professional-patient interactions. The phenomenological approach espoused emphasizes the particular, contextual nature of such interactions, and thus is opposed to abstract, theoretical principles. Heidegger's hermeneutics provides a philosophical approach to communication that may guide the back-and-forth interpretation that should happen between medical professionals and patients to achieve effective communication. PMID- 29330667 TI - Diversity and Phenology of Wild Bees in a Highly Disturbed Tropical Dry Forest "Desierto de la Tatacoa", Huila-Colombia. AB - Colombian tropical dry forest is considered the most endangered tropical biome due to anthropic activities. Desierto de la Tatacoa (DsT) is an example of high disturbed tropical dry forest which still maintains a high biodiversity. The objective of the study was to record the diversity and phenology of wild bees in this place by monthly sampling between December 2014 and December 2016 in a 9-km2 area. During the study, there was a prolonged El Nino-Southern Oscillation period. Bees were collected by entomological nets, malaise traps, eugenol scent trapping, and nest traps. Shannon index was calculated to estimate diversity and Simpson index to determine dominance of a species. The effect of environmental conditions (wet and dry season) in richness and abundance was analyzed by paired T tests. A total of 3004 bee specimens were collected, belonging to 80 species from Apidae, Megachilidae, Halictidae, and Colletidae. Apidae was the most diverse. Shannon index value was 2.973 (discarding Apis mellifera Linnaeus 1758 data); thus, DsT can be considered as a zone of high wild bee diversity. Dry and rainy season showed differences in diversity (p < 0.05). Rainy season showed larger blooming periods and higher bee diversity than dry season. In both seasons, social species were dominant (e.g., A. mellifera or Trigona fulviventris Guerin 1844). Although DsT is a highly disturbed ecosystem, this study found it has the second highest number of genera and the fourth highest number of species reported in Colombia. PMID- 29330669 TI - Hip and Groin Injuries in Baseball Players. AB - PURPOSE OF REVIEW: To discuss the clinical significance of the most common hip and groin injuries in baseball players, as well as an algorithmic approach to diagnosis and treatment of these injuries. RECENT FINDINGS: (a) Limitations in throwing velocity, pitch control, and bat swing speed may be secondary to decreased mobility and strength within the proximal kinetic chain, which must harness power from the lower extremities and core. (b) Approximately 5.5% of all baseball injuries per year involve the hip/groin and may lead to a significant amount of time spent on the disabled list. Injuries involving the hip and groin are relatively common in baseball players. Our knowledge of the mechanics of overhead throwing continues to evolve, as does our understanding of the contribution of power from the lower extremities and core. It is paramount that the team physician be able to accurately diagnose and treat injuries involving the hip/groin, as they may lead to significant disability and inability to return to elite levels of play. This review focuses on hip- and groin-related injuries in the baseball player, including femoroacetabular impingement, core muscle injury, and osteitis pubis. PMID- 29330668 TI - Impact of duplicate CT scan rate after implementation of transfer image repository system at a level 1 trauma center. AB - PURPOSE: The regionalization of trauma in the USA results in frequent transfers of patients from a primary hospital ED to a higher level trauma facility. While many hospitals have a Picture Archive Communication System (PACS) which captures digital radiological images, these are often not available to the receiving institution resulting in duplicate imaging. The state of Arkansas instituted a trauma image repository (TIR) in July 2013. We examined whether implementation of this repository would impact CT scan duplication in the trauma system. METHODS: This was a retrospective analysis of trauma patients transferred from outlying hospitals in Arkansas and Missouri to a single level 1 trauma hospital in Missouri between July 2012 and June 2015. We compared the duplicate CT rate for patients transferred from Arkansas and Missouri hospitals before and after the repository was implemented for Arkansas. RESULTS: Prior to implementation (July 2012-June 2013) of Arkansas TIR, duplicate CT rates were similar for patients transferred from Arkansas (11.5% +/- 2.8) or Missouri (16.3% +/- 7.5). Following implementation (July 2013-June 2014), the duplicate CT rate for patients transferred from Arkansas was significantly lower (Arkansas = 10.1% vs. Missouri 16.2%; CI 95%, p = 0.02), and significance continued (Arkansas = 9.0% vs. Missouri = 17.8%; CI 95%, p = 0.02) during follow-up (July 2014-June 2015). CONCLUSION: Fewer patients received duplicated scans within the Arkansas as compared with the Missouri-based trauma referral systems regardless of Injury Severity Scores (ISS). Our findings suggest that TIR adoption coupled with PACS improved transferability of radiographic studies and could improve patient care while reducing costs in trauma transfers. PMID- 29330670 TI - Treatment of Partial Thickness Rotator Cuff Tears in Overhead Athletes. AB - PURPOSE OF REVIEW: To review the etiology, classification, presentation, evaluation, treatment strategy, and outcomes in overhead athletes with partial thickness rotator cuff tears. RECENT FINDINGS: Despite advances in surgical repair techniques, return to play following surgical repair of partial rotator cuff tears remains modest at best. Overhead athletes may be particularly prone to rotator cuff pathology due to the supraphysiological strains within the tendon during the throwing motion, as well as mechanical stress with contact between the undersurface of the rotator cuff and the glenoid. The true prevalence of partial tears may be underestimated given the high incidence of asymptomatic tears. Both dynamic ultrasound and enhanced contrast MRI have improved our understanding of this pathology. For most overhead athletes, nonoperative management is the most common course. Despite advances in imaging, diagnosis, and surgical techniques, our ability to return these patients to their elite level is modest at best when nonoperative management fails and surgical treatment is performed. If a surgical route is needed, debridement alone is the most frequent procedure given concerns of over constraint and poor return to play with surgical repair of the partial thickness rotator cuff tear. PMID- 29330672 TI - [Obituary for Prof. Dr. med. D. Sc. h.c. Robert F. Schmidt, Ph.D.] PMID- 29330671 TI - Internalizing and Externalizing Behaviors Share a Common Predictor: the Effects of Early Maladaptive Schemas Are Mediated by Coping Responses and Schema Modes. AB - We investigated the relationships of adolescents' internalizing and externalizing behaviors with their early maladaptive schemas (EMS), coping responses, and schema modes. We focused on EMS related to experiences of disconnection and rejection that comprise vulnerable emotions, such as shame, mistrust, deprivation, abandonment, and isolation/alienation. This cross-sectional study included a total of 699 adolescents (combined clinical and non-referred sample) who were 11 to 18 years old (M = 14.6; SD = 1.6), and of which 45% was male. All participants completed self-report questionnaires on EMS, coping responses, schema modes, and behavior problems. We aimed to clarify the relationships between these variables by testing mediation, moderation, and moderated mediation models. In general, coping responses functioned as mediators rather than moderators in the relationships between EMS and schema modes. Furthermore, EMS regarding experiences of disconnection and rejection were related to both internalizing and externalizing behavior problems, and coping responses and schema modes mediated these effects. In conclusion, although adolescent internalizing and externalizing behavior problems manifest quite differently, they seem related to the same EMS. PMID- 29330673 TI - Vacuum-assisted closure therapy of paradoxical reaction in tuberculous lymphadenopathy caused by Mycobacterium africanum. AB - A 26-year-old HIV-negative male from Ghana was treated for cervical, intrathoracic and abdominal lymph node tuberculosis (TB) and tuberculous hepatitis. Penetration of the thoracic trachea by a mediastinal lymph node had caused bronchomucosal TB. Sputum culture grew M. africanum, sensitive to all first-line antituberculous drugs. Four weeks after the beginning of directly observed treatment with isoniazid, rifampin, pyrazinamide and ethambutol, the right cervical lymph node increased in size, liquefied and caused a spontaneous fistula. A biopsy of the necrotized lymph node revealed rare acid-fast bacilli with a positive PCR for Mycobacterium tuberculosis complex. After debridement, vacuum-assisted closure therapy was performed for 6 weeks. Five months after the beginning of antituberculous therapy, a second paradoxical reaction occurred, with painful swelling of two contralateral supraclavicular lymph nodes. Extirpation of one node yielded a positive PCR for M. tuberculosis complex; the culture was negative. Antituberculous treatment was continued, and additional treatment with oral prednisolone 20 mg daily for 1 month tapering over 10 weeks was introduced, resulting in a decrease in lymphadenopathy. Antituberculous treatment was continued for a total of 9 months. The outcome was favorable, no further lymphadenopathy occurred over the following 6 months. PMID- 29330675 TI - Recognizing conserved non-canonical localization patterns of toll-like receptors in tissues and across species. AB - Toll-like receptors (TLR) 1, 2, 4, 5 and 6 were originally characterized as exclusively expressed on the cell surface and TLR 3, 7, 8 and 9 were said to be localized to the endosomes. However, continued research in this area shows that TLR localization may be altered across cell-types, and in response to stimulation, age or disease. Mucosal surfaces must remain tolerant to the commensal flora and thus intracellular or basal lateral localization of TLRs at mucosal surfaces may be necessary to prevent induction of an inflammatory response to commensal flora while still allowing the possibility for the receptors to prime an immune response when a pathogen has crossed the epithelial barrier. Here, we highlight the research specifying 'non-canonical' localization of TLRs in human and animal mucosal tissues and blood-derived cells, while excluding cultured polarized immortalized cells. Reports that only indicate TLR gene/protein expression and/or responsiveness to agonists have been excluded unless the report also indicates surface/intracellular distribution in the cell. Understanding the tissue- and species-specific localization of these specific pattern recognition receptors will lead to a greater appreciation of the way in which TLR ligands promote innate immunity and influence the adaptive immune response. A more comprehensive understanding of this information will potentially aid in the exploitation of the therapeutic or adjuvant potential of selectively localized TLRs and in opening new perspectives in understanding the basis of immunity. PMID- 29330674 TI - Advances in serological, imaging techniques and molecular diagnosis of Toxoplasma gondii infection. AB - BACKGROUND: Toxoplasmosis is worldwide distributed zoonotic infection disease with medical importance in immunocompromised patients, pregnant women and congenitally infected newborns. Having basic information on the traditional and new developed methods is essential for general physicians and infectious disease specialists for choosing a suitable diagnostic approach for rapid and accurate diagnosis of the disease and, consequently, timely and effective treatment. METHODS: We conducted English literature searches in PubMed from 1989 to 2016 using relevant keywords and summarized the recent advances in diagnosis of toxoplasmosis. RESULTS: Enzyme-linked immunosorbent assay (ELISA) was most used method in past century. Recently advanced ELISA-based methods including chemiluminescence assays (CLIA), enzyme-linked fluorescence assay (ELFA), immunochromatographic test (ICT), serum IgG avidity test and immunosorbent agglutination assays (ISAGA) have shown high sensitivity and specificity. Recent studies using recombinant or chimeric antigens and multiepitope peptides method demonstrated very promising results to development of new strategies capable of discriminating recently acquired infections from chronic infection. Real-time PCR and loop-mediated isothermal amplification (LAMP) are two recently developed PCR based methods with high sensitivity and specificity and could be useful to early diagnosis of infection. Computed tomography, magnetic resonance imaging, nuclear imaging and ultrasonography could be useful, although their results might be not specific alone. CONCLUSION: This review provides a summary of recent developed methods and also attempts to improve their sensitivity for diagnosis of toxoplasmosis. Serology, molecular and imaging technologies each has their own advantages and limitations which can certainly achieve definitive diagnosis of toxoplasmosis by combining these diagnostic techniques. PMID- 29330677 TI - Evaluating Efficacy of Landsat-Derived Environmental Covariates for Predicting Malaria Distribution in Rural Villages of Vhembe District, South Africa. AB - Malaria in South Africa is still a problem despite existing efforts to eradicate the disease. In the Vhembe District Municipality, malaria prevalence is still high, with a mean incidence rate of 328.2 per 100,0000 persons/year. This study aimed at evaluating environmental covariates, such as vegetation moisture and vegetation greenness, associated with malaria vector distribution for better predictability towards rapid and efficient disease management and control. The 2005 malaria incidence data combined with Landsat 5 ETM were used in this study. A total of nine remotely sensed covariates were derived, while pseudo-absences in the ratio of 1:2 (presence/absence) were generated at buffer distances of 0.5-20 km from known presence locations. A stepwise logistic regression model was applied to analyse the spatial distribution of malaria in the area. A buffer distance of 10 km yielded the highest classification accuracy of 82% at a threshold of 0.9. This model was significant (rho < 0.05) and yielded a deviance (D2) of 36%. The significantly positive relationship (rho < 0.05) between the soil-adjusted vegetation index and malaria distribution at all buffer distances suggests that malaria vector (Anopheles arabiensis) prefer productive and greener vegetation. The significant negative relationship between water/moisture index (a1 index) and malaria distribution in buffer distances of 0.5, 10, and 20 km suggest that malaria distribution increases with a decrease in shortwave reflectance signal. The study has shown that suitable habitats of malaria vectors are generally found within a radius of 10 km in semi-arid environments, and this insight can be useful to aid efforts aimed at putting in place evidence-based preventative measures against malaria infections. Furthermore, this result is important in understanding malaria dynamics under the current climate and environmental changes. The study has also demonstrated the use of Landsat data and the ability to extract environmental conditions which favour the distribution of malaria vector (An. arabiensis) such as the canopy moisture content in vegetation, which serves as a surrogate for rainfall. PMID- 29330679 TI - ? PMID- 29330676 TI - Quantitative Outcomes of a One Health approach to Study Global Health Challenges. AB - Having gained momentum in the last decade, the One Health initiative promotes a holistic approach to address complex global health issues. Before recommending its adoption to stakeholders, however, it is paramount to first compile quantitative evidence of the benefit of such an approach. The aim of this scoping review was to identify and summarize primary research that describes monetary and non-monetary outcomes following adoption of a One Health approach. An extensive literature search yielded a total of 42,167 references, of which 85 were included in the final analysis. The top two biotic health issues addressed in these studies were rabies and malaria; the top abiotic health issue was air pollution. Most studies described collaborations between human and animal (n = 42), or human and environmental disciplines (n = 41); commonly reported interventions included vector control and animal vaccination. Monetary outcomes were commonly expressed as cost-benefit or cost-utility ratios; non-monetary outcomes were described using disease frequency or disease burden measurements. The majority of the studies reported positive or partially positive outcomes. This paper illustrates the variety of health challenges that can be addressed using a One Health approach, and provides tangible quantitative measures that can be used to evaluate future implementations of the One Health approach. PMID- 29330678 TI - [Quality indicators with reference values and threshold limits in general and visceral surgery : For obesity and metabolic, pancreatic, colon carcinoma and rectal carcinoma surgery]. PMID- 29330680 TI - The illusion of control: Sequential dependencies underlie contingent attentional capture. AB - The degree to which humans have top-down control over which information they process remains a central debate within the attention literature. Most of the evidence supporting the top-down control of visuospatial attention has come from cueing paradigms in which target stimuli are preceded by cues that are similar or dissimilar from the target. These studies find that the cues similar to targets capture attention, but dissimilar cues do not, suggesting the top-down control of attention. Here, we used a modified cueing paradigm to investigate an alternative possibility that the cue type differences are due to sequential dependency effects occurring between cue and target processing rather than the top-down control of attention. When individuals searched for color targets, we replicated contingent capture effects in RTs, which are susceptible to sequential dependencies, but memory performance was always best at the cued locations, regardless of the cue's identity. When individuals searched for onset targets, we observed contingent capture in both tasks. These results demonstrate the utility of the memory probe paradigm and suggest an asymmetry between how strongly onsets and color defined cues capture attention. PMID- 29330681 TI - Verification of nonwords: The baseword frequency effect in children's pseudohomophone reading. AB - In this study, we investigated the baseword frequency effect in children and its implications for models of visual word recognition. The baseword frequency effect reflects the finding that response latencies in the lexical decision task to nonwords derived from high-frequency basewords (e.g., GREAN derived from GREEN) are shorter than for those derived from low-frequency basewords (e.g., SLEAT derived from SLEET). Importantly, the baseword frequency effect presents a challenge to current activation-based models of visual word recognition. One explanation for this effect is that the orthographic representations of high frequency basewords are easier to access. This allows a quick progression to a verification stage in which the exact spelling of a stimulus is checked, upon which the lexicality decision is then based. The main goal of this study was to investigate whether such a verification mechanism is specifically modulated by the quality of the orthographic lexicon. We tested whether the baseword frequency effect was evident in children's lexical decisions to pseudohomophones (PsH) and whether verification accuracy varied as a function of children's orthographic knowledge. The baseword frequency effect in response latency was observed in both German-speaking adults and children. Children's spelling skills significantly influenced the accuracy of the verification stage in their responses to PsH. These findings imply that verification is an integral part of word reading and thus should be included in computational models of visual word recognition. PMID- 29330682 TI - Life-Threatening Reaction with Topical 5-Fluorouracil. AB - A 67-year-old man developed a suspected adverse drug reaction during treatment with topical 5-fluorouracil (5-FU) for multiple actinic keratosis of the face, neck, and forearms. The man received topical 5-FU at a dosage of 0.5% for the actinic keratoses. After 1 week, he developed extreme lethargy, fatigue, fever, and mouth erosions. Several days later, and after discontinuation of 5-FU, painful mucositis and systemic side effects occurred, meeting criteria for hospitalization because of dehydration and a 6.8 kg weight loss. Hematology/oncology was consulted, and a possible systemic 5-FU reaction, similar to reactions to intravenous chemotherapy seen with a dihydropyrimidine dehydrogenase deficiency was suggested. The patient was not taking any concurrent medications, and he refused dihydropyrimidine dehydrogenase deficiency testing. PMID- 29330683 TI - Cardiac function during weaning failure: the role of diastolic dysfunction. AB - BACKGROUND: Cardiac dysfunction is a common cause of weaning failure. Weaning shares some similarities with a cardiac stress test and may challenge active phases of the cardiac cycle-like ventricular contractility and relaxation. This study aimed at assessing systolic and diastolic function during the weaning process and scrutinizing their dynamics during weaning trials. METHODS: Echocardiography was performed during baseline ventilator settings to assess cardiac function at the initiation of the weaning process and at the start and the end of consecutive weaning trials (performed at day-1, day-2, and before extubation if applicable) to explore the evolution of left ventricle contractility and relaxation in a subset of patients. RESULTS: Among 67 patients included, weaning was prolonged (>= 7 days) in 18 (27%) patients and short (< 7 days) in 49 (73%). Prevalence of systolic dysfunction and isolated diastolic dysfunction before the initiation of weaning process were 37 and 17%, respectively. Isolated diastolic dysfunction was more frequent in patients with prolonged weaning as compared to their counterparts. Thirty-one patients were explored by echocardiography during consecutive weaning trials. An increase in filling pressures with an alteration of ventricular relaxation (as assessed by a decrease in tissue Doppler early mitral diastolic wave velocity) was found during failed weaning trials. CONCLUSIONS: Isolated diastolic dysfunction was associated with a prolongation of weaning. Increased filling pressures with left ventricle relaxation impairment may be a key mechanism of weaning trial failure. PMID- 29330684 TI - Investigation of Mature BDNF and proBDNF Signaling in a Rat Photothrombotic Ischemic Model. AB - Treatment with mature brain-derived neurotrophic factor (mBDNF) promotes functional recovery after ischemia in animal trials but the possible role of its precursor protein proBDNF and its receptors or the factors responsible for the conversion of proBDNF to mBDNF in ischemic stroke are not known. The main aim of this study was to characterize the time-dependent expression of genes and/or proteins related to BDNF processing and signaling after ischemia as well as the sensorimotor behavioral dysfunction in a photothrombotic ischemic model in rats. Characterization of different genes and proteins related to BDNF processing and signaling was performed using qPCR, immunoblotting and enzyme-linked immunosorbent assays. We showed in this study that some sensory and motor functional deficiencies appeared in the ischemic group at day 1 and persisted until day 14. Most changes in gene expression of BDNF and its processing enzymes occurred within the first 24 h in the ipsilateral cortex, but not in the contralateral cortex. At the protein level, proBDNF expression was increased at 6 h, mBDNF expression was increased between 15 h and 1 day while p75 receptor protein expression was increased between 6 h and 3 days in the ipsilateral cortex, but not in the contralateral cortex. Therefore, cerebral ischemia in rats led to the up-regulation of genes and/or proteins of BDNF, proBDNF and their processing enzymes and receptors in a time-dependent manner. We propose that the balance between BDNF and proBDNF and their associated proteins may play an important role in the pathogenesis and recovery from ischemia. PMID- 29330685 TI - Do we understand the rationale behind driving restrictions in patients with an implantable cardioverter defibrillator? PMID- 29330686 TI - Attentional influences on memory formation: A tale of a not-so-simple story. AB - Is there a learning mechanism triggered by mere expectation violation? Is there some form of memory enhancement inherent to an event mismatching our predictions? Across seven experiments, we explore this issue by means of a validity paradigm. Although our manipulation clearly succeeded in generating an expectation and breaking it, the memory consequences of that expectation mismatch are not so obvious. We report here evidence of a null effect of expectation on memory formation. Our results (1) show that enhanced memory for unexpected events is not easily achieved and (2) call for a reevaluation of previous accounts of memory enhancements based on prediction error or difficulty of processing. Limitations of this study and possible implications for the field are discussed in detail. PMID- 29330687 TI - Evaluation of the Mitochondria-Related Redox and Bioenergetics Effects of Gastrodin in SH-SY5Y Cells Exposed to Hydrogen Peroxide. AB - Mitochondrion is the main site of ATP production in animal cells and also orchestrates signaling pathways associated with cell survival and death. Mitochondrial dysfunction has been linked to bioenergetics and redox impairment in human diseases, such as neurodegeneration and cardiovascular disease. Protective agents able to attenuate mitochondrial impairment are of pharmacological interest. Gastrodin (GAS; 4-hydroxybenzyl alcohol 4-O-beta-D glucoside) is a phenolic glucoside obtained from the Chinese herbal medicine Gastrodia elata Blume and exhibits antioxidant, anti-inflammatory, and antiapoptotic effects in several cell types. GAS is able to cross the blood-brain barrier, reducing the impact of different stressors on the cognition of experimental animals. In the present work, we investigated whether GAS would protect mitochondria of human SH-SY5Y neuroblastoma cells against an exposure to a pro-oxidant agent. The cells were treated with GAS at 25 MUM for 30 min before the administration of hydrogen peroxide (H2O2) at 300 MUM for an additional 3 or 24 h, depending on the assay. We evaluated both mitochondrial redox state and function parameters and analyzed the mechanism by which GAS protected mitochondria in this experimental model. Silencing of the nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factor suppressed the GAS induced mitochondrial protection seen here. Moreover, Nrf2 knockdown abrogated the effects of GAS on cell viability, indicating a potential role for Nrf2 in both mitochondrial and cellular protection promoted by GAS. Further research would be necessary to investigate whether GAS would be able to induce similar effects in in vivo experimental models. PMID- 29330688 TI - Hepatocyte nuclear factors as possible C-reactive protein transcriptional inducer in the liver and white adipose tissue of rats with experimental chronic renal failure. AB - Inflammation related to chronic kidney disease (CKD) is an important clinical problem. We recently determined that hepatocyte nuclear factor 1alpha (HNF1alpha) was upregulated in the livers of chronic renal failure (CRF) rats-experimental model of CKD. Considering that the promoter region of gene encoding C-reactive protein (CRP) contains binding sites for HNF1alpha and that the loss-of-function mutation in the Hnfs1alpha leads to significant reduction in circulating CRP levels, we hypothesized that HNF1alpha can activate the Crp in CRF rats. Here, we found coordinated upregulation of genes encoding CRP, interleukin-6 (IL-6), HNF1alpha, and HNF4alpha in the livers and white adipose tissue (WAT) of CRF rats, as compared to the pair-fed and control animals. This was accompanied by elevated serum levels of CRP and IL-6. CRP and HNFs' mRNA levels correlated positively with CRP and HNFs' protein levels in the liver and WAT. Similar upregulation of the Crp, Il-6, and Hnfs in the liver and WAT and increased serum CRP and IL-6 concentrations were found in lipopolysaccharide (LPS)-induced systemic inflammation in rats. Moreover, silencing HNF1alpha in HepG2 cells by small interfering RNA led to decrease in CRP mRNA levels. Our results suggests that (a) HNFs act in concert with IL-6 in the upregulation of CRP production by the liver and WAT, leading to an increase in circulating CRP concentration in CRF rats and (b) CRF-related inflammation plays an important role in the upregulation of genes that encode HNFs and CRP in the liver and WAT of CRF rats. PMID- 29330689 TI - The efficiency of acoustic radiation force impulse (ARFI) elastography in the diagnosis and staging of carpal tunnel syndrome. AB - OBJECTIVES: The aim of the present study was to quantify the stiffness of the median nerve (MN) at the carpal tunnel inlet by acoustic radiation force impulse (ARFI) elastography and to evaluate whether ARFI can be used in diagnosis and staging of carpal tunnel syndrome (CTS). METHODS: Sonographic examinations of 96 wrists in 50 patients were included in the study. The cross-sectional area and stiffness of the MN were quantitatively measured by B-mode ultrasonography (USG) and ARFI. The findings of CTS were assigned to four groups: (I) normal (n = 21), (II) mild (n = 39), (III) moderate (n = 38), and (IV) severe (n = 19). The differences between CTS patients and controls and the differences in electrodiagnostic tests among subgroups were statistically compared. ROC analysis was performed to determine the cut-off values between subgroups. RESULTS: Bilateral CTS was present in 46 patients (92 wrists) and unilateral CTS in four patients. Of the 96 nerves in the 50 symptomatic "idiopathic CTS" patients (48 women, 2 men; mean age 45.9 years, range 23-73 years), 39 (40.4%) were mild, 38 (39.8%) were moderate, and 19 (19.8%) were severely affected. When compared to controls, MN stiffness was significantly higher in the CTS group (P < 0.001); furthermore, it was higher in the severe or extreme severity group than the mild or moderate severity group (P < 0.001). A 3.250 m/s cut-off value on ARFI revealed sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of 81, 82, 95.1, 50, and 82%, respectively. CONCLUSION: The MN stiffness measured by ARFI elastography is significantly higher in patients with CTS then in controls. ARFI elastography appears to be a highly efficient imaging modality for the diagnosis and staging of these patients. PMID- 29330690 TI - Extracorporeal membrane oxygenation for severe Middle East respiratory syndrome coronavirus. AB - BACKGROUND: Middle East respiratory syndrome (MERS) is caused by a coronavirus (MERS-CoV) and is characterized by hypoxemic respiratory failure. The objective of this study is to compare the outcomes of MERS-CoV patients before and after the availability of extracorporeal membrane oxygenation (ECMO) as a rescue therapy in severely hypoxemic patients who failed conventional strategies. METHODS: We collected data retrospectively on MERS-CoV patients with refractory respiratory failure from April 2014 to December 2015 in 5 intensive care units (ICUs) in Saudi Arabia. Patients were classified into two groups: ECMO versus conventional therapy. Our primary outcome was in-hospital mortality; secondary outcomes included ICU and hospital length of stay. RESULTS: Thirty-five patients were included; 17 received ECMO and 18 received conventional therapy. Both groups had similar baseline characteristics. The ECMO group had lower in-hospital mortality (65 vs. 100%, P = 0.02), longer ICU stay (median 25 vs. 8 days, respectively, P < 0.01), and similar hospital stay (median 41 vs. 31 days, P = 0.421). In addition, patients in the ECMO group had better PaO2/FiO2 at days 7 and 14 of admission to the ICU (124 vs. 63, and 138 vs. 36, P < 0.05), and less use of norepinephrine at days 1 and 14 (29 vs. 80%; and 36 vs. 93%, P < 0.05). CONCLUSIONS: ECMO use, as a rescue therapy, was associated with lower mortality in MERS patients with refractory hypoxemia. The results of this, largest to date, support the use of ECMO as a rescue therapy in patients with severe MERS-CoV. PMID- 29330691 TI - Bis-guanylhydrazones as efficient anti-Candida compounds through DNA interaction. AB - Candida spp. are leading causes of opportunistic mycoses, including life threatening hospital-borne infections, and novel antifungals, preferably aiming targets that have not been used before, are constantly needed. Hydrazone- and guanidine-containing molecules have shown a wide range of biological activities, including recently described excellent antifungal properties. In this study, four bis-guanylhydrazone derivatives (BG1-4) were generated following a previously developed synthetic route. Anti-Candida (two C. albicans, C. glabrata, and C. parapsilosis) minimal inhibitory concentrations (MICs) of bis-guanylhydrazones were between 2 and 15.6 MUg/mL. They were also effective against preformed 48-h old C. albicans biofilms. In vitro DNA interaction, circular dichroism, and molecular docking analysis showed the great ability of these compounds to bind fungal DNA. Competition with DNA-binding stain, exposure of phosphatidylserine at the outer layer of the cytoplasmic membrane, and activation of metacaspases were shown for BG3. This pro-apoptotic effect of BG3 was only partially due to the accumulation of reactive oxygen species in C. albicans, as only twofold MIC and higher concentrations of BG3 caused depolarization of mitochondrial membrane which was accompanied by the decrease of the activity of fungal mitochondrial dehydrogenases, while the activity of oxidative stress response enzymes glutathione reductase and catalase was not significantly affected. BG3 showed synergistic activity with amphotericin B with a fractional inhibitory concentration index of 0.5. It also exerted low cytotoxicity and the ability to inhibit epithelial cell (TR146) invasion and damage by virulent C. albicans SC5314. With further developments, BG3 may further progress in the antifungal pipeline as a DNA-targeting agent. PMID- 29330692 TI - A new method for the in vitro determination of the bile tolerance of potentially probiotic lactobacilli. AB - A new in vitro method was developed to determine the bile tolerance of potentially probiotic lactobacilli. The overnight culture of various lactobacilli strains was inoculated into sterile, half-strength MRS broth supplemented with and without 0.3% (wt/vol) oxgall, buffered with 0.1 M sodium phosphate buffer at a final pH of 7.3, and incubated at 37 degrees C for 12 h under anaerobic conditions. The bile tolerance ability of the lactobacilli strains was expressed as the percentage of the propagation generations of the bacterial cells in the presence of oxgall to those in the absence of oxgall. The bile tolerance ability of 11 strains of 8 Lactobacillus species, including 3 bile salt hydrolase (BSH) negative strains and 8 BSH-positive strains, was analyzed using the newly developed method and two traditional methods. The results showed that bile tolerance ability of the strains was considerably different depending on the analysis method used. The newly developed method mimics the physiological environment of the human small intestine, and avoids changes in pH and bile salt composition during the incubation period, which are drawbacks of the traditional bile tolerance test methods. Therefore, the analysis method developed in this study is more suitable to screen or compare the bile tolerance ability of lactobacilli strains. PMID- 29330693 TI - The enhanced biomass and lipid accumulation in Coccomyxa subellipsoidea with an integrated treatment strategy initiated by brewery effluent and phytohormones. AB - Brewery effluent (BE) as an appreciable and sustainable resource presented new possibilities in low-cost algal biomass production, whereas the relatively low essential macronutrients hindered extensive applications as growth medium for microalgae cultivation. The objective of this study was to investigate the feasibility of an integrated treatment strategy initiated by BE coupling phytohormones in augmenting biomass and lipid accumulation in Coccomyxa subellipsoidea. Results revealed that BE coupling synthetic 1-naphthaleneacetic acid (NAA) accomplished the favorable lipid productivity of 481.76 mg/L/days, representing 6.80- to 9.71-fold more than that of single BE as well as standard Basal media. BE coupling NAA feeding also heightened the proportions of C16-C18 fatty acids (over 96%) and mono-unsaturated C18:1 (approximate 45%) which were prone to high-quality biofuels-making. Such profound lipids accumulation might be attributable to that BE coupling NAA treatment drove most of metabolic flux (i.e. acetyl-CoA) derived from TCA cycle and glycolysis flowing into lipid accumulation pathway. Concurrently, the complete removal of total nitrogen and total phosphorus by C. subellipsoidea with assistance of NAA were easily complied with the permissible dischargeable limits for BE. These present results strongly demonstrated that BE coupling NAA was a potential feeding strategy in boosting algal lipid productivity and further provided great possibilities in linking affordable algal biomass production with high-efficient biological contaminants removal. PMID- 29330694 TI - Volatile compounds from beneficial or pathogenic bacteria differentially regulate root exudation, transcription of iron transporters, and defense signaling pathways in Sorghum bicolor. AB - KEY MESSAGE: Our results show that Sorghum bicolor is able to recognize bacteria through its volatile compounds and differentially respond to beneficial or pathogens via eliciting nutritional or defense adaptive traits. Plants establish beneficial, harmful, or neutral relationships with bacteria. Plant growth promoting rhizobacteria (PGPR) emit volatile compounds (VCs), which may act as molecular cues influencing plant development, nutrition, and/or defense. In this study, we compared the effects of VCs produced by bacteria with different lifestyles, including Arthrobacter agilis UMCV2, Bacillus methylotrophicus M4-96, Sinorhizobium meliloti 1021, the plant pathogen Pseudomonas aeruginosa PAO1, and the commensal rhizobacterium Bacillus sp. L2-64, on S. bicolor. We show that VCs from all tested bacteria, except Bacillus sp. L2-64, increased biomass and chlorophyll content, and improved root architecture, but notheworthy A. agilis induced the release of attractant molecules, whereas P. aeruginosa activated the exudation of growth inhibitory compounds by roots. An analysis of the expression of iron-transporters SbIRT1, SbIRT2, SbYS1, and SbYS2 and genes related to plant defense pathways COI1 and PR-1 indicated that beneficial, pathogenic, and commensal bacteria could up-regulate iron transporters, whereas only beneficial and pathogenic species could induce a defense response. These results show how S. bicolor could recognize bacteria through their volatiles profiles and highlight that PGPR or pathogens can elicit nutritional or defensive traits in plants. PMID- 29330695 TI - Glucosuria and all-cause mortality among general screening participants. AB - BACKGROUND: Dipstick urine tests are used for general health screening in Japan, but how the test results (e.g., glucosuria) relate to mortality is unknown. METHODS: Subjects participated in a nationwide screening in 2008 in six districts in Japan. We identified those who might have died using the national database of death certificates from 2008 to 2012 (total registered ~ 6 million) and verified candidates with the regional National Health Insurance Agency and public health nurses. Diabetes mellitus (DM) was defined as HbA1c >= 6.5%, fasting blood glucose >= 126 mg/dl, or medicated for DM. Hazard ratio (HR) and 95% confidence interval (CI) were calculated by Cox proportional hazard analysis. Glucosuria was defined as dipstick >= 1 +. RESULTS: Among 209,060 subjects, we identified 2714 fatalities (median follow-up 3.57 years). Crude mortality rates were 1.2% for those without glucosuria and 3.4% for those with glucosuria. After adjusting for sex, age, body mass index, comorbidity (DM, hypertension, and dyslipidemia), history (stroke, heart disease, and kidney disease), and lifestyle (smoking, drinking, walking, and exercise), the HR (95% CI) for dipstick glucosuria was 1.475 (1.166-1.849, P < 0.001). DM subjects with glucosuria (N = 4655) had a higher HR [1.302 (1.044-1.613, P = 0.020)] than DM subjects without glucosuria (N = 20,245), and non-DM subjects with glucosuria (N = 470) had a higher HR [2.511 (1.539-3.833, P < 0.001)] than non-DM subjects without glucosuria (N = 183,690). CONCLUSION: Dipstick glucosuria significantly affected mortality in Japanese community-based screening participants. PMID- 29330696 TI - Migrant Live-in Caregivers Mental Health in Canada. AB - Empirical evidence suggests rapid health decline among temporary migrant workers but there is limited knowledge about their mental health. This study explored live-in care givers' (LCs) mental health and its determinants. Using a mixed methods design, a purposeful sample of 30 LCs was recruited. Data were collected through a selfcompleted questionnaire. A third of participants reported their mental health as poor or fair. Almost half experienced major depression. The poor mental health was associated with the average working hours and living accommodation. The average resiliency scores was moderately high and appeared to function as a protective factor against mental illness. Our findings suggest LCs are at risk of compromised mental health associated to their substandard working and living conditions. These conditions originates from violation of employment contracts, unfair employment practices, and the lack of enforcement of LCs' legal and human rights. PMID- 29330697 TI - Implementation of Dialectical Behavior Therapy in Residential Treatment Programs: A Process Evaluation Model for a Community-Based Agency. AB - Dialectical behavior therapy (DBT) can be challenging to implement in community based settings. Little guidance is available on models to evaluate the effectiveness or sustainability of training and implementation efforts. Residential programs have much to gain from introduction of evidence-based practices, but present their own challenges in implementation. This paper presents a low-cost process evaluation model to assess DBT training piloted in residential programs. The model targets staff and organizational factors associated with successful implementation of evidence-based practices and matches data collection to the four stages of the DBT training model. The strengths and limitations of the evaluation model are discussed. PMID- 29330699 TI - Accounting of GHG emissions and removals from forest management: a long road from Kyoto to Paris. AB - BACKGROUND: Forests have always played an important role in agreeing on accounting rules during the past two decades of international climate policy development. Starting from activity-based gross-net accounting of selected forestry activities to mandatory accounting against a baseline-rules have changed quite rapidly and with significant consequences for accounted credits and debits. Such changes have direct consequences on incentives for climate-investments in forestry. There have also been strong arguments not to include forests into the accounting system by considering large uncertainties, procedural challenges and a fear of unearned credits corrupting the overall accounting system, among others. This paper reflects the development of respective accounting approaches and reviews the progress made on core challenges and resulting incentives. MAIN TEXT: The historic development of forest management accounting rules is analysed in the light of the Paris Agreement. Pros and cons of different approaches are discussed with specific focus on the challenge to maintain integrity of the accounting approach and on resulting incentives for additional human induced investments to increase growth for future substitution and increased C storage by forest management. The review is solely based on scientific publications and official IPCC and UNFCC documents. Some rather political statements of non-scientific stakeholders are considered to reflect criticism. Such sources are indicated accordingly. Remaining and emerging requirements for an accounting system for post 2030 are highlighted. CONCLUSIONS: The Paris Agreement is interpreted as a "game changer" for the role of forests in climate change mitigation. Many countries rely on forests in their NDCs to achieve their self-set targets. In fact, the agreement "to achieve a balance between anthropogenic emissions by sources and removals by sinks of greenhouse gases in the second half of this century" puts pressure on the entire land sector to contribute to overall GHG emission reductions. This also concerns forests as a resource for the bio-based economy and wood products, and for increasing carbon reservoirs. By discussing the existing elements of forest accounting rules and conditions for establishing an accounting system post 2030, it is concluded that core requirements like factoring out direct human-induced from indirect human-induced and natural impacts on managed lands, a facilitation of incentives for management changes and providing safeguards for the integrity of the accounting system are not sufficiently secured by currently discussed accounting rules. A responsibility to fulfil these basic requirements is transferred to Nationally Determined Contributions. Increased incentives for additional human induced investments are not stipulated by the accounting approach but rather by the political decision to make use of the substitution effect and potential net removals from LULUCF to contribute to self-set targets. PMID- 29330698 TI - Circulating Hormones and Mammographic Density in Premenopausal Women. AB - Prior research suggests that several endogenous hormones in premenopausal women are associated with breast cancer risk; however, few studies have evaluated associations of endogenous hormones with mammographic density (MD) in premenopausal women. We conducted a cross-sectional study of plasma hormone levels in relation to MD among 634 cancer-free premenopausal women in the Nurses' Health Study II. We measured percent MD from screening mammograms using a computer-assisted method. We assayed estradiol, estrone, and estrone sulfate in blood samples timed in early follicular and mid-luteal phases of the menstrual cycle as well as testosterone, androstenedione, progesterone, dehydroepiandrosterone (DHEA), DHEA sulfate, sex hormone-binding globulin (SHBG), and anti-Mullerian hormone in luteal or untimed samples. We used multivariable linear regression to quantify the association of %MD with quartiles of each hormone, adjusting for age, body mass index, and breast cancer risk factors. Women in the highest quartile of follicular estradiol levels had significantly greater %MD compared to those in the lowest quartile [difference, 6.7 percentage points; 95% confidence interval (CI) 2.2, 11.3; p-trend < 0.001]. Similar associations were observed for follicular free estradiol but not luteal-phase estradiol. Also, women in the top (vs. bottom) quartile of free testosterone had significantly lower %MD (difference, - 4.7; 95% CI - 8.7, - 0.8; p-trend = 0.04). Higher SHBG was significantly associated with higher percent MD (difference, 4.8; 95% CI 1.1, 8.6; p-trend = 0.002). Percent MD was not strongly associated with other measured hormones. Results were similar in analyses that excluded women with anovulatory cycles. Our findings suggest that follicular estradiol and SHBG may play an important role in premenopausal percent MD. PMID- 29330700 TI - Relation between internalizing behaviors, externalizing behaviors, and peer victimization among children with and without ADHD. AB - The current study explored the concurrent and longitudinal association between internalizing behaviors, externalizing behaviors, and peer victimization among children with and without ADHD. Eighty children (42 ADHD, 38 non-ADHD) ages 8-12 participated in the present study conducted over a 6-month period. During the baseline session, parents completed a structured diagnostic interview and the Vanderbilt ADHD Parent Rating Scale to determine whether their child met criteria for ADHD, and the Child Behavior Checklist (CBCL) to assess their child's internalizing and externalizing behaviors; children completed the Perception of Peer Support Scale (PPSS) to assess experiences of peer victimization. At the 6 month follow-up session, parents completed the CBCL and children completed the PPSS. Concurrently, internalizing behaviors were associated with peer victimization among children with and without ADHD; ADHD moderated this relation, such that internalizing behaviors were more strongly related to peer victimization among children with ADHD. Longitudinally, internalizing behaviors at baseline predicted peer victimization at 6-month follow-up; however, further analyses demonstrated there was a covarying change in internalizing behaviors and peer victimization. These findings suggest internalizing behaviors are related to peer victimization concurrently, and over time, and are associated with increased risk for peer victimization in the presence of ADHD. Additionally, internalizing behaviors and peer victimization appear to share a dynamic relationship; that is, decreases in internalizing behaviors predict similar decreases in peer victimization. No significant relations were observed between externalizing behaviors and peer victimization. Implications and limitations are discussed. PMID- 29330701 TI - ? PMID- 29330702 TI - pTAC10, an S1-domain-containing component of the transcriptionally active chromosome complex, is essential for plastid gene expression in Arabidopsis thaliana and is phosphorylated by chloroplast-targeted casein kinase II. AB - In higher plant chloroplasts, the plastid-encoded RNA polymerase (PEP) consists of four catalytic subunits and numerous nuclear-encoded accessory proteins, including pTAC10, an S1-domain-containing protein. In this study, pTAC10 knockout lines were characterized. Two ptac10 mutants had an albino phenotype and severely impaired chloroplast development. The pTAC10 genomic sequence fused to a four tandem MYC tag driven by its own promoter functionally complemented the ptac10-1 mutant phenotype. pTAC10 was present in both the chloroplast stroma and thylakoids. Two-dimensional blue native polyacrylamide gel electrophoresis (BN PAGE), and immunoblotting assays showed that pTAC10:MYC co-migrates with one of the PEP core subunits, RpoB. A comprehensive investigation of the plastid gene expression profiles by quantitative RT-PCR revealed that, compared with wild-type plants, the abundance of PEP-dependent plastid transcripts is severely decreased in the ptac10-1 mutant, while the amount of plastid transcripts exclusively transcribed by NEP either barely changes or even increases. RNA blot analysis confirmed that PEP-dependent chloroplast transcripts, including psaB, psbA and rbcL, substantially decrease in the ptac10-1 mutant. Immunoblotting showed reduced accumulation of most chloroplast proteins in the ptac10 mutants. These data indicate the essential role of pTAC10 in plastid gene expression and plastid development. pTAC10 interacts with chloroplast-targeted casein kinase 2 (cpCK2) in vitro and in vivo and can be phosphorylated by Arabidopsis cpCK2 in vitro at sites Ser95, Ser396 and Ser434. RNA-EMSA assays showed that pTAC10 is able to bind to the psbA, atpE and accD transcripts, suggesting a non-specific RNA binding activity of pTAC10. The RNA affinity of pTAC10 was enhanced by phosphorylation and decreased by the amino acid substitution Ser434-Ala of pTAC10. These data show that pTAC10 is essential for plastid gene expression in Arabidopsis and that it can be phosphorylated by cpCK2. PMID- 29330703 TI - Association Between Atrial, Ventricular and Vascular Morphofunctional Alterations in Rheumatoid Arthritis. AB - INTRODUCTION: Rheumatoid arthritis (RA) represents a risk of non-fatal and cardiovascular events. The aim of the present study was to evaluate simultaneously left and right atrial and ventricular function, as well as arterial stiffness, in RA patients. METHODS: This cross-sectional study included 55 consecutive RA patients and 55 healthy age and gender-matched controls. Blood pressure and arterial stiffness were assessed in all participants, who also underwent a complete echocardiographic examination. RESULTS: RA patients were treated with steroid therapy (52.7%), methotrexate (66.6%) and biological therapy (54.5%). Disease activity score revealed low average RA activity. Augmentation index was significantly higher in RA patients (32.2 +/- 8.6 vs. 28.4 +/- 8.9%, P = 0.02). Left atrial volume was also higher among RA patients (23.1 +/- 8.2 vs. 20.1 +/- 7.1 ml/m2, P = 0.04), whereas mitral and tricuspid E/A ratios were significantly lower in RA individuals (0.90 +/- 0.24 vs. 1.03 +/- 0.35, P = 0.02; 1.07 +/- 0.31 vs. 1.27 +/- 0.35, P = 0.003, respectively). Tissue Doppler systolic and diastolic velocities were similar between the observed groups. Arterial stiffness index showed significant correlation with disease duration (r = 0.29; P = 0.03). Tissue Doppler-derived transmitral late diastolic velocity (A') showed significant correlation with index of disease activity in the RA patients. CONCLUSIONS: Our results showed that left and right ventricular diastolic function and arterial stiffness were significantly deteriorated in the RA patients comparing with controls. The assessment of left and right ventricular diastolic function, as well as vascular function, should be an essential part of clinical evaluation in the RA patients. PMID- 29330704 TI - The Effects of Coenzyme Q10 Supplementation on Blood Pressures Among Patients with Metabolic Diseases: A Systematic Review and Meta-analysis of Randomized Controlled Trials. AB - INTRODUCTION: Although several trials have assessed the effect of coenzyme Q10 (CoQ10) supplementation on blood pressures among patients with metabolic diseases, findings are controversial. AIM: This review of randomized controlled trials (RCTs) was performed to summarize the evidence on the effects of CoQ10 supplementation on blood pressures among patients with metabolic diseases. METHODS: Randomized-controlled trials (RCTs) published in PubMed, EMBASE, Web of Science and Cochrane Library databases up to 10 August 2017 were searched. Two review authors independently assessed study eligibility, extracted data, and evaluated risk of bias of included studies. Heterogeneity was measured with a Q test and with I2 statistics. Data were pooled by using the fix or random-effect model based on the heterogeneity test results and expressed as standardized mean difference (SMD) with 95% confidence interval (CI). RESULTS: A total of seventeen randomized controlled trials (684 participants) were included. Results showed that CoQ10 supplementation significantly decreased systolic blood pressure (SBP) (SMD - 0.30; 95% CI - 0.52, - 0.08). However, CoQ10 supplementation decreased diastolic blood pressure (DBP), but this was not statistically significant (SMD - 0.08; 95% CI - 0.46, 0.29). CONCLUSIONS: CoQ10 supplementation may result in reduction in SBP levels, but did not affect DBP levels among patients with metabolic diseases. Additional prospective studies regarding the effect of CoQ10 supplementation on blood pressure in patients with metabolic diseases are necessary. PMID- 29330705 TI - Association between skeletal morphology and agenesis of all four third molars in Japanese orthodontic patients. AB - The purpose of this study was to clarify differences in skeletal morphologies between male and female orthodontic patients with and without agenesis of all four third molars. A total of 64 patients (32 males and 32 females) with agenesis of all four third molars without agenesis of other teeth were selected as the third molars agenesis group (group 1). In addition, 64 patients (32 males and 32 females) with all these teeth were selected as controls (group 2). Lateral cephalograms taken between the ages of 14 and 30 years were used to compare skeletal morphology between groups 1 and 2 and between sexes. Maxillary length (P < 0.001), lower facial height (P < 0.05), gonial angle (P < 0.001) and mandibular plane angle (P < 0.001) were significantly smaller in group 1 than in group 2. Irrespective of the presence or absence of all four third molars, males had significantly smaller lower facial height (P < 0.01) and mandibular plane angle (P < 0.001) and significantly greater total mandibular length (P < 0.001), mandibular body length (P < 0.001) and mandibular ramus height (P < 0.001) than females. Japanese orthodontic patients with agenesis of all four third molars had significantly small maxillary length, lower facial height, gonial angle and mandibular plane angle. PMID- 29330706 TI - Color stability of different composite resins after polishing. AB - The goals of the present study were to evaluate, in vitro, the staining of different composite resins submitted to different common beverages, and to compare the staining effect of each of these solutions. A total of 288 specimens were randomly divided into six groups and immersed for 4 weeks in five staining solutions represented by red wine, orange juice, coke, tea and coffee or in artificial saliva as a control group. When analyzed over a black background, mean DeltaE00 values varied from 0.8 for Venus Diamond, Saremco Microhybrid and ELS in saliva and Estelite Posterior in coke to 37.6 for Filtek Supreme in red wine. When analyzed over a white background, mean DeltaE00 values varied from 0.5 for Saremco Microhybrid in saliva to 51.1 for Filtek Supreme in red wine. All materials showed significant changes in color after 4 weeks of immersion in staining solutions. Significant differences were found between the tested composite resins and also between the staining solutions. PMID- 29330707 TI - Effects of periodontal treatment on carotid intima-media thickness in patients with lifestyle-related diseases: Japanese prospective multicentre observational study. AB - Atherosclerosis, a chronic inflammatory disease in arterial blood vessels, is one of the major causes of death in worldwide. Meanwhile, periodontal disease is a chronic inflammatory disease caused by infection with periodontal pathogens such as P. gingivalis (Porphyromonas gingivalis). Several studies have reported association between periodontal infection and atherosclerosis, but direct investigation about the effects of periodontal treatment on atherosclerosis has not been reported. We have planned Japanese local clinics to determine the relationship between periodontal disease and atherosclerosis under collaborative with medical and dental care. A prospective, multicentre, observational study was conducted including 38 medical patients with lifestyle-related diseases in the stable period under consultation at participating medical clinics and 92 periodontal patients not undergoing medical treatment but who were consulting at participating dental clinics. Systemic and periodontal examinations were performed before and after periodontal treatment. At baseline, LDL-C (low-density lipoprotein cholesterol) levels and percentage (%) of mobile teeth were positively related to plasma IgG (immunoglobulin) antibody titer against P. gingivalis with multivariate analysis. Corresponding to improvements in periodontal clinical parameters after treatment, right and left max IMT (maximum intima-media thickness) levels were decreased significantly after treatment (SPT S: start of supportive periodontal therapy, SPT-1y: at 1 year under SPT, and SPT 3y: at 3 years under SPT). The present study has clarified our previous univariate analysis results, wherein P. gingivalis infection was positively associated with progression of atherosclerosis. Thus, routine screening using plasma IgG antibody titer against P. gingivalis and periodontal treatment under collaborative with medical and dental care may prevent cardiovascular accidents caused by atherosclerosis. PMID- 29330708 TI - Living with lymphoedema-the perspective of cancer patients: a qualitative study. AB - PURPOSE: The aim of this study was to describe the lived experience of lymphoedema and the barriers faced by cancer sufferers receiving physiotherapy outpatient treatment. METHODS: A qualitative, phenomenological study was performed. Purposeful sampling method was used. Data collection methods included unstructured and semi-structured interviews and researcher field notes. A thematic analysis was used. The study was conducted following the Consolidated Criteria for Reporting Qualitative Research guidelines. RESULTS: Eleven patients (62.18 +/- 10.14 years) (90.91% women) participated. One theme was identified with different subgroups. The main theme 'Living a life with multiple barriers' formed by the subthemes 'Discovering physical and psychological barriers', 'Searching information', 'Building relationships' and 'Controlling expenses' displays the daily difficulties they must face in areas such as work. The patients reported that lymphoedema is a constant emotional and physical challenge. They need to adapt their lives to their new situation, learning how to manage the lymphoedema. CONCLUSIONS: Patients considered lymphoedema as a clinical situation with multiple barriers and they found that it does alter their quality of life. These results can be applied in onco-haematology units to develop specific protocols for customers. PMID- 29330710 TI - Glycogen Production in Marine Cyanobacterial Strain Synechococcus sp. NKBG 15041c. AB - An important feature offered by marine cyanobacterial strains over freshwater strains is the capacity to grow in seawater, replacing the need for often-limited freshwater. However, there are only limited numbers of marine cyanobacteria that are available for genetic manipulation and bioprocess applications. The marine unicellular cyanobacteria Synechococcus sp. strain NKBG 15041c (NKBG15041c) has been extensively studied. Recombinant DNA technologies are available for this strain, and its genomic information has been elucidated. However, an investigation of carbohydrate production, such as glycogen production, would provide information for inevitable biofuel-related compound production, but it has not been conducted. In this study, glycogen production by marine cyanobacterium NKBG15041c was investigated under different cultivation conditions. NKBG15041c yielded up to 399 MUg/ml/OD730 when cells were cultivated for 168 h in nitrogen-depleted medium (marine BG11DeltaN) after medium replacement (336 h after inoculation). Cultivation under nitrogen-limited conditions also yielded an accumulation of glycogen in NKBG15041c cells (1 mM NaNO3, 301 MUg/ml/OD730; 3 mM NaNO3, 393 MUg/ml/OD730; and 5 mM NaNO3, 328 MUg/ml/OD730) under ambient conditions. Transcriptional analyses were carried out for 13 putative genes responsible for glycogen synthesis and catabolism that were predicted based on homology analyses with Synechocystis sp. PCC 6803 (PCC6803) and Synechococcus sp. PCC7002 (PCC7002). The transcriptional analyses revealed that glycogen production in NKBG15041c under nitrogen-depleted conditions can be explained by the contribution of both increased carbon flux towards glycogen synthesis, similar to PCC6803 and PCC7002, and increased transcriptional levels of genes responsible for glycogen synthesis, which is different from the conventionally reported phenomenon, resulting in a relatively high amount of glycogen under ambient conditions compared to PCC6803 and PCC7002. PMID- 29330712 TI - Correction to: Pre-existing Small Vessel Disease in Patients with Acute Stroke from the Middle East, Southeast Asia, and Philippines. AB - The author names "Dr. Pablo Garcia Bermejo" and "Dr. Muhammad Faisal Wadiwala" needed to be added as the 6th and 7th authors, respectively. The authors regret this error. PMID- 29330709 TI - In vitro and in vivo activity of iclaprim, a diaminopyrimidine compound and potential therapeutic alternative against Pneumocystis pneumonia. AB - Pneumocystis pneumonia is a serious complication that may affect immunosuppressed patients. The absence of reliable and safe therapeutic alternatives to trimethoprim-sulfamethoxazole (TMP/SMX) justifies the search for more effective and less toxic agents. In this study, the in vitro and in vivo anti-Pneumocystis jirovecii activity of iclaprim, a diaminopyrimidine compound that exerts its antimicrobial activity through the inhibition of dihydrofolate reductase (DHFR), as does TMP, was evaluated alone or in combination with SMX. The antimicrobial activity of iclaprim was tested in vitro using an efficient axenic culture system, and in vivo using P. carinii endotracheally inoculated corticosteroid treated rats. Animals were orally administered iclaprim (5, 25, 50 mg/kg/day), iclaprim/SMX (5/25, 25/125, 50/250 mg/kg/day), TMP (50 mg/kg/day), or TMP/SMX (50/250 mg/kg/day) once a day for ten consecutive days. The in vitro maximum effect (Emax) and the drug concentrations needed to reach 50% of Emax (EC50) were determined, and the slope of the dose-response curve was estimated by the Hill equation (Emax sigmoid model). The iclaprim EC50 value was 20.3 MUg/mL. This effect was enhanced when iclaprim was combined with SMX (EC50: 13.2/66 MUg/mL) (p = 0.002). The TMP/SMX EC50 value was 51.4/257 MUg/mL. In vivo, the iclaprim/SMX combination resulted in 98.1% of inhibition compared to TMP/SMX, which resulted in 86.6% of inhibition (p = 0.048). Thus, overall, the iclaprim/SMX combination was more effective than TMP/SMX both in vitro and in vivo, suggesting that it could be an alternative therapy to the TMP/SMX combination for the treatment of Pneumocystis pneumonia. PMID- 29330713 TI - Low-field magnetic resonance imaging offers potential for measuring tibial component migration. AB - BACKGROUND: Roentgen stereophotogrammetric analysis (RSA) is used to measure early prosthetic migration and to predict future implant failure. RSA has several disadvantages, such as the need for perioperatively inserted tantalum markers. Therefore, this study evaluates low-field MRI as an alternative to RSA. The use of traditional MRI with prostheses induces disturbing metal artifacts which are reduced by low-field MRI. The purpose of this study is to assess the feasibility to use low-field (0.25 Tesla) MRI for measuring the precision of zero motion. This was assessed by calculating the virtual prosthetic motion of a zero-motion prosthetic reconstruction in multiple scanning sessions. Furthermore, the effects of different registration methods on these virtual motions were tested. RESULTS: The precision of zero motion for low-field MRI was between 0.584 mm and 1.974 mm for translation and 0.884 degrees and 3.774 degrees for rotation. The manual registration method seemed most accurate, with MU <= 0.13 mm (sigma <= 0.931 mm) for translation and MU <= 0.15 degrees (sigma <= 1.63 degrees ) for rotation. CONCLUSION: Low-field MRI is not yet as precise as today's golden standard (marker based RSA) as reported in the literature. However, low-field MRI is feasible of measuring the relative position of bone and implant with comparable precision as obtained with marker-free RSA techniques. Of the three registration methods tested, manual registration was most accurate. Before starting clinical validation further research is necessary and should focus on improving scan sequences and registration algorithms. PMID- 29330711 TI - Boosting tendon repair: interplay of cells, growth factors and scaffold-free and gel-based carriers. AB - BACKGROUND: Tendons are dense connective tissues and critical components for the integrity and function of the musculoskeletal system. Tendons connect bone to muscle and transmit forces on which locomotion entirely depends. Due to trauma, overuse and age-related degeneration, many people suffer from acute or chronic tendon injuries. Owing to their hypovascularity and hypocellularity, tendinopathies remain a substantial challenge for both clinicians and researchers. Surgical treatment includes suture or transplantation of autograft, allograft or xenograft, and these serve as the most common technique for rescuing tendon injuries. However, the therapeutic efficacies are limited by drawbacks including inevitable donor site morbidity, poor graft integration, adhesion formations and high rates of recurrent tearing. This review summarizes the literature of the past 10 y concerning scaffold-free and gel-based approaches for treating tendon injuries, with emphasis on specific advantages of such modes of application, as well as the obtained results regarding in vitro and in vivo tenogenesis. RESULTS: The search was focused on publications released after 2006 and 83 articles have been analysed. The main results are summarizing and discussing the clear advantages of scaffold-free and hydrogels carriers that can be functionalized with cells alone or in combination with growth factors. CONCLUSION: The improved understanding of tissue resident adult stem cells has made a significant progress in recent years as well as strategies to steer their fate toward tendon lineage, with the help of growth factors, have been identified. The field of tendon tissue engineering is exploring diverse models spanning from hard scaffolds to gel-based and scaffold-free approaches seeking easier cell delivery and integration in the site of injury. Still, the field needs to consider a multifactorial approach that is based on the combination and fine-tuning of chemical and biomechanical stimuli. Taken together, tendon tissue engineering has now excellent foundations and enters the period of precision and translation to models with clinical relevance on which better treatment options of tendon injuries can be shaped up. PMID- 29330714 TI - Evidence-Based Recommendations to Improve the Safe Use of Drugs in Patients with Liver Cirrhosis. AB - INTRODUCTION: The presence of liver cirrhosis can have a major impact on pharmacodynamics and pharmacokinetics, but guidance for prescribing is lacking. OBJECTIVE: The aim of this study is to provide an overview of evidence-based recommendations developed for the safe use of drugs in liver cirrhosis. METHODS: Recommendations were based on a systematic literature search combined with expert opinion from a panel of 10 experts. The safety of each drug was classified as safe, no additional risks known, additional risks known, unsafe, unknown or the safety class was dependent on the severity of liver cirrhosis (Child-Pugh classification). If applicable, drug-specific dosing advice was provided. All recommendations were implemented in clinical decision support systems and on a website. RESULTS: We formulated 218 recommendations for a total of 209 drugs. For nine drugs, two recommendations were formulated for different administration routes or indications. Drugs were classified as 'safe' in 29 recommendations (13.3%), 'no additional risks known' in 60 (27.5%), 'additional risks known' in 3 (1.4%), and 'unsafe' in 30 (13.8%). In 57 (26.1%) of the recommendations, safety depended on the severity of liver cirrhosis and was 'unknown' in 39 (17.9%) recommendations. Large alterations in pharmacodynamics were the main reason for classifying a drug as 'unsafe'. For 67 drugs (31%), a dose adjustment was needed. CONCLUSIONS: Over 200 recommendations were developed for the safe use of drugs in patients with liver cirrhosis. Implementing these recommendations into clinical practice can possibly enhance medication safety in this vulnerable patient group. PMID- 29330715 TI - Case Series Analysis of New Zealand Reports of Rapid Intense Potentiation of Warfarin by Roxithromycin. AB - INTRODUCTION: We undertook an analysis of all the reports to the New Zealand Centre for Adverse Reactions Monitoring of a roxithromycin/warfarin interaction after two recent reports described intense rapid warfarin potentiation. The interaction was first published in 1995. Cytochrome P450 3A4 inhibition has been the proposed mechanism but has limited biologic plausibility. There are suggestions that the clinical significance of the interaction may be increased by severe illness, polypharmacy, renal dysfunction, older age and increased warfarin sensitivity. METHODS: To investigate the potentiating effect of warfarin on roxithromycin in this New Zealand case series, the reports were reviewed to identify patients at risk, compare the reporting pattern with published Australian data and evaluate the appropriateness of current prescribing advice. RESULTS: Thirty patient reports were identified. The age range was 23-88 years, mean 66.8, median 73.0 (standard deviation 17.7) and the international normalised ratios after roxithromycin commencement ranged from 3.6 to 16.7 (mean 7.6, median 7.6, standard deviation 3.6). For eight patients with measurements on day 3, international normalised ratios were 4.3-16.7 (mean 10.4, median 8.8, standard deviation 4.4). Four patients had serious haemorrhage. Indications for roxithromycin were a range of respiratory tract infections. Anticoagulation was stable for most patients prior to acute infection. Serious infection occurred in 54.5% (12 of 22 patients with information). Polypharmacy (five or more medicines daily) was used by 36.7% of patients long term, increasing acutely to 83.3%, including additional potentially interacting medicines. Warfarin daily dose (1.5 13.0 mg, mean 4.4, median 4.0, standard deviation 2.2) was moderate to low. Pre roxithromycin international normalised ratio values ranged from 1.4 to 3.7, mean and median 2.5, standard deviation 0.5. A high proportion of interactions were observed between warfarin and roxithromycin compared with other macrolides and compared with cytochrome P450 3A4-related macrolide interactions. The pattern was similar to published Australian data. CONCLUSION: In this case series, the high prevalence of acute polypharmacy, including potentially interacting medicines, and serious infection suggests that they may have contributed to warfarin potentiation and increased the clinical significance of a roxithromycin/warfarin interaction. PMID- 29330716 TI - Long-Term Survival of Patients with Thin (T1) Cutaneous Melanomas: A Breslow Thickness Cut Point of 0.8 mm Separates Higher-Risk and Lower-Risk Tumors. AB - BACKGROUND: Counterintuitively, more deaths from melanoma occur among patients with thin (T1) primary melanomas (<= 1 mm) than among those with thick primary melanoma because the great majority present with T1 tumors. Therefore, it is important to stratify their risk as accurately as possible to guide their management and follow-up. This study sought to explore the relationship between tumor thickness and prognosis for patients with thin primary melanomas. METHODS: A retrospective, single-institution study investigated 6263 patients with cutaneous melanoma (including 2117 T1 cases) who had a minimum follow-up period of 10 years. RESULTS: For the entire patient cohort, the 10-year melanoma specific survival (MSS) rate ranged between 92% for the patients with primary melanomas up to 0.3 mm thick and 32% for those with melanomas thicker than 8 mm. When divided into 25-quantile-thickness groups there was a significant difference in 10-year MSS between the two consecutive groups 0.8 and 0.9 mm; the differences in survival were not significantly different for any other consecutive cut points within the less than or equal to 1 mm thickness range, indicating a biologically relevant difference in outcome above and below 0.8 mm. For the patients treated initially at the authors' institution, the 10- and 20-year MSS rates for those with tumors up to 0.8 mm thick were respectively 93.4 and 85.7%, and for tumors 0.9 to 1.0 mm, the rates were respectively 81.1 and 71.4%. Only 29.3% of the T1 patients who died of melanoma were deceased within 5 years. CONCLUSIONS: A naturally occurring thickness cut point of 0.8 mm predicts higher or lower risk for patients with thin primary cutaneous melanomas. Long-term follow-up assessment of patients with T1 melanoma is important because late mortality due to melanoma is more common than early mortality. PMID- 29330717 TI - Posterior Retroperitoneoscopic Resection of Extra-adrenal Paraganglioma Located in the Aorto-caval Space. AB - BACKGROUND: The posterior retroperitoneoscopic adrenalec tomy has several advantages compared with the transperitoneal approach such as a shorter and more direct route to the target organ, no breach of the intraperitoneal space, and no required retraction of the adjacent organs. It also is a safe procedure with a short learning curve.1-5 This report presents a challenging case of an extra adrenal paraganglioma located in the aorto-caval space and managed using the retroperitoneal approach. METHODS: A 39-year-old man was placed in the prone jackknife position, and three incisions were made in the right posterior abdominal wall for placement of the laparoscopic ports. The retroperitoneal space was entered with diathermy and blunt finger dissection, and retropneumoperitoneum was achieved with carbon dioxide insufflation pressure up to 18 mmHg. After identification of the right kidney and vessels, the tumor was meticulously dissected and excised with an energy device. The specimen was removed using a laparoscopic specimen retrieval bag, and the port sites were closed in layers. RESULTS: The operative time was 130 min, and the total blood loss was 30 ml. The tumor was diagnosed as a moderately differentiated extra-adrenal paraganglioma. The Von Hippel-Lindau gene mutation was detected using next-generation sequencing. CONCLUSIONS: The posterior retroperitoneoscopic approach is a safe, feasible, and effective method for excising an extra-adrenal paraganglioma even in the aorto-caval space. The authors suggest that this procedure is a useful surgical option for treatment of an aorto-caval paraganglioma for selected patients and by experienced surgeons. PMID- 29330718 TI - SPECT/CT Adds Distinct Lymph Node Basins and Influences Radiologic Findings and Surgical Approach for Sentinel Lymph Node Biopsy in Head and Neck Melanoma. AB - BACKGROUND: Planar lymphoscintigraphy (PL) has a lower detection rate of sentinel lymph nodes (SLNs) in head and neck melanoma compared with other sites. We assessed situations when single-photon emission computed tomography/computed tomography (SPECT/CT) identified nodes not seen by PL. We also evaluated the impact of SPECT/CT on surgical approach and oncologic outcomes. METHODS: Patients who underwent SLN biopsy (SLNB) for head and neck melanoma with PL and SPECT/CT between November 2011 and December 2016 were included. Surgeons and radiologists completed a real-time survey inquiring about the utility of SPECT/CT. Patients were divided into two groups: patients with nodal basins identified by both PL and SPECT/CT ('PL + SPECT/CT'), and patients in whom SPECT/CT identified additional nodal basins not seen on PL ('SPECT/CT only'). Patient demographics and long-term outcomes including follow-up duration, recurrence, and survival are described. RESULTS: In the PL + SPECT/CT group, 73 (61.9%) patients were included and 45 (38.1%) patients were included in the SPECT/CT-only group. SPECT/CT added 51 basins to those seen on PL, primarily in the supraclavicular region (43.1%). Eighteen patients had positive node(s) in the PL + SPECT/CT group compared with two patients in the SPECT/CT-only group. Surgeons reported that 81% of the time, SPECT/CT influenced the location of incision for SLNB. CONCLUSIONS: SPECT/CT influences the location of incision and contributes most to identification of nodes in the supraclavicular region. It also detects additional SLN basins when compared with PL. Further studies are necessary to determine when these additional basins require sampling. PMID- 29330719 TI - Prognostic Value of Tumor-Infiltrating Lymphocyte Density Assessed Using a Standardized Method Based on Molecular Subtypes and Adjuvant Chemotherapy in Invasive Breast Cancer. AB - BACKGROUND: This study investigated the prognostic value of tumor-infiltrating lymphocyte (TIL) density as determined by molecular subtype and receipt of adjuvant chemotherapy in invasive breast cancer (IBC). METHODS: Stromal TIL densities were evaluated in 1489 IBC samples using recommendations proposed by the International TILs Working Group. Cases were allocated to high- and low-TIL density groups using a cutoff of 10%. RESULTS: Of the 1489 IBC patients, 427 (28.7%) were assigned to the high-TIL group and 1062 (71.3%) to the low-TIL group. High TIL density was found to be significantly associated with large tumor size (p = 0.001), high histologic grade (p < 0.001), and high Ki-67 labeling index (p < 0.001). Triple-negative and human epidermal growth factor receptor 2 (HER2)-positive subtypes had significantly higher TIL densities than luminal A or B (HER2-negative) subtypes (p < 0.001). High TIL density was significantly associated with prolonged disease-free survival (DFS) by univariate (p < 0.001) and multivariate (p < 0.001) analyses. In the low-TIL-density group, the patients who did not receive adjuvant chemotherapy showed better DFS (p < 0.001), but no such survival difference was observed in the high-TIL group (p = 0.222). For the patients who received adjuvant anthracycline, high-TIL density was found to be an independent prognostic factor of favorable DFS in the luminal B (HER2-negative; p = 0.003), HER2-positive (p = 0.019), and triple-negative (p = 0.017) subtypes. CONCLUSION: Measurements of TIL density in routine clinical practice could give useful prognostic information for the triple-negative, HER2-positive, and luminal B (HER2-negative) IBC subtypes, especially for patients administered adjuvant anthracycline. PMID- 29330720 TI - Dialysis Increases the Risk of Bladder Recurrence in Patients with Upper Tract Urothelial Cancer: A Population-Based Study. AB - BACKGROUND: The relation of dialysis to tumor recurrence in patients with upper tract urothelial cancer (UTUC) is unknown; however, a limited number of small scale studies suggest that patients with renal diseases prior to UTUC are more likely to exhibit bladder recurrence. We performed a population-based analysis to determine the effect of dialysis on bladder recurrence for patients with UTUC. METHODS: This retrospective cohort study included patients diagnosed with UTUC (2002-2007) from the Taiwan National Cancer Registry and divided them into two groups-dialysis and non-dialysis groups. These patients were followed up until bladder recurrence, death, or the end of 2010. Competing risk analyses adjusting covariates and death were applied to determine the relation of dialysis and bladder recurrence. RESULTS: Of the 5141 eligible patients, 548 (10.7%) were undergoing dialysis. The cumulative bladder recurrence was significantly higher in the dialysis group than in the non-dialysis group (29% vs. 21%, modified log rank p < 0.001). In the multivariable analysis, the dialysis group exhibited a 64% increased bladder recurrence risk (cause-specific hazard ratio 1.64, 95% confidence interval 1.34-2.01, p < 0.001), which was confirmed using stratification and propensity score weighting methods. The other prognostic factors for bladder recurrence were sex, diabetes, cardiac disorder, Charlson Comorbidity Index, and tumor grade. CONCLUSIONS: Despite unknown reasons, approximately one-tenth of patients with UTUC have experienced dialysis treatment. Patients undergoing dialysis have a higher risk of bladder recurrence. Various treatment and screening strategies should be developed for dialysis and non-dialysis patients. PMID- 29330721 TI - Transcriptomic analysis and discovery of genes in the response of Arachis hypogaea to drought stress. AB - The peanut (Arachis hypogaea) is an important crop species that is threatened by drought stress. The genome sequences of peanut, which was officially released in 2016, may help explain the molecular mechanisms that underlie drought tolerance in this species. We report here a gene expression profiling of A. hypogaea to gain a global view of its drought resistance. Using whole-transcriptome sequencing, we analysed differential gene expression in response to drought stress in the drought-resistant peanut cultivar J11. Pooled samples obtained at 6, 12, 18, 24, and 48 h were compared with control samples at 0 h. In total, 51,554 genes were found, including 49,289 known genes and 2265 unknown genes. We identified 224 differentially expressed transcription factors, 296,335 SNPs and 28,391 InDELs. In addition, we detected significant differences in the gene expression profiles of the treatment and control groups. After comparing the two groups, 4648 genes were identified. An in-depth analysis of the data revealed that a large number of genes were associated with drought stress, including transcription factors and genes involved in photosynthesis-antenna proteins, carbon metabolism and the citrate cycle. The results of this study provide insights into the diverse mechanisms that underlie the successful establishment of drought resistance in the peanut, thereby facilitating the identification of important genes in the peanut related to drought management. Transcriptome analysis based on RNA-Seq is a powerful approach for gene discovery and molecular marker development for this species. PMID- 29330722 TI - Location of low copy genes in chromosomes of Brachiaria spp. AB - Repetitive DNA sequences have been widely used in cytogenetic analyses. The use of gene sequences with a low-copy-number, however, is little explored especially in plants. To date, the karyotype details in Brachiaria spp. are limited to the location of rDNA sites. The challenge lies in developing new probes based on incomplete sequencing data for the genus or complete sequencing of related species, since there are no model species with a sequenced genome in Brachiaria spp. The present study aimed at the physical location of conserved genes in chromosomes of Brachiaria ruziziensis, Brachiaria brizantha, and Brachiaria decumbens using RNAseq data, as well as sequences of Setaria italica and Sorghum bicolor through the fluorescent in situ hybridization technique. Five out of approximately 90 selected sequences generated clusters in the chromosomes of the species of Brachiaria studied. We identified genes in synteny with 5S and 45S rDNA sites, which contributed to the identification of chromosome pairs carrying these genes. In some cases, the species of Brachiaria evaluated had syntenic segments conserved across the chromosomes. The use of genomic sequencing data is essential for the enhancement of cytogenetic analyses. PMID- 29330723 TI - Association Between the Incidence of Pancreatic Fistula After Pancreaticoduodenectomy and the Degree of Pancreatic Fibrosis. AB - OBJECTIVE: The objective of this study is to investigate the association between the incidence of pancreatic fistula after pancreaticoduodenectomy (PD) and the degree of pancreatic fibrosis. METHOD: Between January 2013 and December 2016, the analysis of the clinical data of 529 cases of pancreaticoduodenectomy patients of our hospital was performed in a retrospective fashion. The univariate analysis and multivariate analysis were done using the Pearson chi-squared test and binary logistic regression analysis model; correlations were analyzed by Spearman rank correlation analysis. The value of the degree of pancreatic fibrosis to predict the incidence of pancreatic fistula after pancreaticoduodenectomy was evaluated by the area under the receiver operating characteristic (ROC) curve. RESULTS: The total incidence of pancreatic fistula after pancreaticoduodenectomy was 28.5% (151/529). Univariate analysis and multivariate analysis showed that BMI >= 25 kg/m2, pancreatic duct size <= 3 mm, pancreatic CT value< 30, the soft texture of the pancreas (judged during the operation), and the percent of fibrosis of pancreatic lobule <= 25% are prognostic factors of pancreatic fistula after pancreaticoduodenectomy (P < 0.05); the pancreatic CT value and the percent of fibrosis of pancreatic lobule in pancreatic fistula group were both lower than those in non-pancreatic fistula group (P < 0.05). Results indicated that there is a negative correlation between the severity of pancreatic fistula and the pancreatic CT value or the percent of fibrosis of pancreatic lobule (r = - 0.297, - 0.342, respectively). The areas under the ROC curve of the percent of fibrosis of pancreatic lobule and the pancreatic CT value were 0.756 and 0.728, respectively. CONCLUSION: The degree of pancreatic fibrosis is a prognostic factor which can influence the pancreatic texture and the incidence of pancreatic fistula after pancreaticoduodenectomy. The pancreatic CT value can be used as a quantitative index of the degree of pancreatic fibrosis to predict the incidence of pancreatic fistula after pancreaticoduodenectomy. PMID- 29330725 TI - Cytologic Diagnosis of Biliary Strictures: FISH or Cut the Sensitivity Rate? PMID- 29330724 TI - A Novel Nomogram for Predicting Postsurgical Intra-abdominal Infection in Gastric Cancer Patients: a Prospective Study. AB - BACKGROUND: This study aimed to determine the relationship between intra abdominal infection (IAI) and sarcopenia prospectively and to construct a nomogram to identify patients at a high risk of IAI. METHODS: We conducted a prospective study of 682 consecutive patients with gastric cancer who underwent radical gastrectomy. The sarcopenia elements, including lumbar skeletal muscle index, handgrip strength, and gait speed, were measured before surgery. Factors contributing to IAI were determined through univariate and multivariate analysis. A nomogram consisting of the independent risk factors was constructed to quantify the individual risk of IAI. RESULTS: Of the 682 patients enrolled in this study, 132 patients were diagnosed with sarcopenia and 61 were diagnosed with IAI. Logistic analysis revealed that sarcopenia, tumor size, pathological type, and multivisceral resection were independent prognostic factors for IAI. The nomogram model for IAI was able to reliably quantify the risk of IAI with a strong optimism-adjusted discrimination (concordance index, 0.736). CONCLUSIONS: Sarcopenia is an independent predictor of IAI. Our nomogram was a simple and practical instrument to quantify the individual risk of IAI and could be used to identify patients at a high risk. PMID- 29330727 TI - Gastroenterology Fellowship Match: An Inside Look. PMID- 29330726 TI - Ultra-Deep Genomic Sequencing of HCV NS5A Resistance-Associated Substitutions in HCV/HIV Coinfected Patients. AB - BACKGROUND AND AIMS: The prevalence of naturally occurring HCV-NS5A resistance associated substitutions (RAS) to DAA drugs might affect the response to treatment in HCV/HIV coinfected subjects. There are limited data on the frequency of HCV-NS5A naturally occurring drug-RAS at baseline in HCV/HIV coinfected patients when ultra-deep sequencing methodologies are applied. METHODS: HCV-NS5A RAS were evaluated among 25 subjects in each group. Patients were matched by age, gender, and hepatic fibrosis stage category to control for selection bias. RESULTS: Within subtype 1a, RAS were observed in 28% of HCV monoinfected and 48% of HCV/HIV coinfected subjects. More patients in the HCV/HIV coinfected group had clinically relevant mutations to DAA directed at NS5A. CONCLUSION: While the clinical significance of this observation may be limited in highly drug adherent populations, some HCV/HIV coinfected persons may be at greater risk of viral resistance if suboptimal dosing occurs. PMID- 29330729 TI - Revenge of the NERDs: Cadherin Fragments Differentiate Functional Heartburn from Non-erosive Reflux Disease. PMID- 29330728 TI - Analysis of Plasma Tenascin-C in Post-HCV Cirrhosis: A Prospective Study. AB - BACKGROUND AND AIM: Hepatitis C virus (HCV)-related cirrhosis, one of the most common etiologies of liver cirrhosis in the Western world, is a risk factor for hepatocellular carcinoma. To confirm and improve current effectiveness of screening and prognosis of patients with established cirrhosis, a credible, simple plasma biomarker is needed. Hepatic stellate cell activation, a pivotal event in cirrhosis development, results in increased secretion of extracellular matrix proteins, including tenascin-C (TnC). Herein, we tested TnC as a simple biomarker to identify cirrhotic patients with active HCV infection from those with HCV eradication. METHODS: A prospective study of subjects with HCV-related cirrhosis, stratified into two groups, HCV or virologic cure, was conducted. Plasma TnC expression was measured by ELISA and Western blots. TnC values were correlated with markers of liver injury and ROC analyses performed between groups. RESULTS: The HCV cirrhotic cohort, consisting mostly of men (56%), Caucasians (76%), and genotype 1a or 1b (84%), was compared to healthy controls (HCs). Plasma TnC was significantly higher in HCV cirrhotic patients with active infection compared to HCs (P < 0.0001) and virologic cure (P < 0.0001). TnC concentrations in virologic cure subjects were not statistically different from HCs. TnC levels correlated with AST, platelets, MELD, APRI, FIB-4, and Child-Pugh score. TnC and AST together were significantly better indicators of cirrhosis in patients with active HCV infection than other markers tested. CONCLUSIONS: TnC and AST provided the best model for discriminating HCV cirrhotics with active infection from HC and virologic cure cohorts over current liver injury markers, suggesting TnC as a potential indicator of ongoing hepatic injury and inflammation. PMID- 29330730 TI - Scaffold-free tissue engineering for injured joint surface restoration. AB - Articular cartilage does not heal spontaneously due to its limited healing capacity, and thus effective treatments for cartilage injuries has remained challenging. Since the first report by Brittberg et al. in 1994, autologous chondrocyte implantation (ACI) has been introduced into the clinic. Recently, as an alternative for chondrocyte-based therapy, mesenchymal stem cell (MSC)-based therapy has received considerable research attention because of the relative ease in handling for tissue harvest, and subsequent cell expansion and differentiation. In this review, we discuss the latest developments regarding stem cell-based therapies for cartilage repair, with special focus on recent scaffold-free approaches. PMID- 29330731 TI - Human Plant Exposures Reported to a Regional (Southwestern) Poison Control Center Over 8 Years. AB - BACKGROUND: There is little published data about human plant exposures reported to US poison control centers (PCCs). METHODS: A retrospective chart review of all reported plant exposures to a single regional PCC between January 1, 2003 and December 31, 2010 was done to understand better the characteristics of plant exposure cases. Specific generic plant codes were used to identify cases. Recorded variables included patient demographics, plant involved, exposure variables, symptoms, management site, treatments, and outcome. Univariate and multivariate regression was used to identify outcome predictors. RESULTS: A total of 6492 charts met inclusion criteria. The average age was 16.6 years (2 months 94 years); 52.4% were male. The most common exposure reason was unintentional (98%), and the majority (92.4%) occurred at the patient's home. Ingestions (58.3%) and dermal exposures (34.3%) accounted for most cases. Cactus (27.5%), oleander (12.5%), Lantana (5.7%), and Bougainvillea (3.8%) were most commonly involved. Symptoms developed in 47.1% of patients, and were more likely to occur following Datura (66.7%), and Morning Glory or Milkweed (25% each) exposures. Almost 94% of patients were managed onsite (home) and only 5.2% involved evaluation in a health care facility (HCF). Only 37 (0.6%) patients required hospital admission, and 2.9% of cases resulted in more than minimal effects. Exposures resulting in more than minimal clinical effects were predicted by several variables: abnormal vital signs (OR = 35.62), abnormal labs (OR = 14.87), and management at a HCF (OR = 7.37). Hospital admissions were increased for patients already at a HCF (OR = 54.01), abnormal vital signs (OR = 23.28), and intentional exposures (OR = 14.7). CONCLUSION: Plant exposures reported to our poison control center were typically unintentional ingestions occurring at home. Most patients were managed onsite and few developed significant symptoms. PMID- 29330732 TI - Touching the Spirit: Re-enchanting the Person in the Body. AB - In this essay, we argue that touch constitutes a sacred connection between the patient and practitioner. When touch is avoided or overlooked, the enigmatic inner workings of the body are ignored as those aspects of the body that can be quantified and ultimately controlled are emphasized. In utilizing touch as a fundamental way of opening up space for the sacred, the practitioner affirms the humanity for both the patient and herself. Only by returning to the senses can practitioners resist the dehumanizing effects of machinery and re-enchant the health-care profession in caring for persons they have sworn to serve. PMID- 29330734 TI - How does School Experience Relate to Adolescent Identity Formation Over Time? Cross-Lagged Associations between School Engagement, School Burnout and Identity Processing Styles. AB - The existing research findings still do not provide a clear understanding of the links between adolescent school experience and their identity formation. To address this gap, we analyzed the dynamic links between adolescent school experiences and identity formation by exploring the cross-lagged associations between school engagement, school burnout and identity processing styles (information-oriented, normative and diffuse-avoidant) over a 2-year period during middle-to-late adolescence. The sample of this school-based study included 916 adolescents (51.4% females) in the 9th to 12th grades from diverse socio economic and family backgrounds. The results from the cross-lagged analyses with three time points revealed that (a) school engagement positively predicted information-oriented identity processing over a 2-year period; (b) school burnout positively predicted the reliance on normative and diffuse-avoidant identity styles across the three measurements; (c) the effects were stable over the three time points and across different gender, grade, and socio-economic status groups. The unidirectional effects identified in our study support the general prediction that active engagement in learning at school can serve as a resource for adolescent identity formation, while school burnout, in contrast, can hinder the formation of adolescent identity. This points to the importance of taking developmental identity-related needs of adolescents into account when planning the school curriculum. PMID- 29330736 TI - Study on the Multi-level Resistance-Switching Memory and Memory-State-Dependent Photovoltage in Pt/Nd:SrTiO3 Junctions. AB - Pt/Nd:SrTiO3 (STO)/In devices were fabricated by depositing Schottky-contact Pt and Ohmic-contact In electrodes on a single crystal STO with Nd doping. The Pt/Nd:STO/In devices show multi-level resistance-switching (RS) memory and memory state-dependent photovoltage (PV) effects, which can be controlled by the applied pulse width or magnitude. Both the RS and PV are related to the bias-induced modulation of the interface barrier, both in height and width, at the Pt/Nd:STO interface. The results establish a strong connection between the RS/PV effects and the modulation of the Nd:STO interface triggered by applied electric field and provide a new route by using an open-circuit voltage for non-destructively sensing multiple non-volatile memory states. PMID- 29330733 TI - Intergenerational Continuity in Depression: The Importance of Time-Varying Effects, Maternal Co-morbid Health Risk Behaviors and Child's Gender. AB - Intergenerational continuity in depressive symptoms is well established between mother and child, but there are still important facets of this relationship that are underexplored. We examine intergenerational continuity in depressive symptoms between mother-child dyads as a flexible function of child age and account for the potential moderating role of maternal co-morbid health risk behaviors. Using prospective, self-report data collected yearly from 413 mother-child dyads (210 mother-son dyads and 203 mother-daughter dyads) between child ages 12-17, the results indicate that the effect of maternal depressive symptoms on daughters' depressive symptoms steadily increases throughout adolescence whereas the effect of maternal depressive symptoms on sons' depressive symptoms is relatively small, stable, and non-significant during mid-adolescence before increasing in effect in later adolescence. A positive interactive effect between maternal depressive symptoms and intimate partner violence is observed for sons and maternal depressive symptoms and substance use for daughters. A negative interactive effect of maternal depressive symptoms and substance use is observed among sons. Overall, this study identifies particular subgroups for whom intervention programming is most beneficial and suggests targeting health risk behaviors of mothers to lessen the impact of maternal depressive symptoms on offspring. PMID- 29330737 TI - Letter to the editor. PMID- 29330738 TI - A video review of multiple concussion signs in National Rugby League match play. AB - BACKGROUND: Video review has been introduced in many professional sports worldwide to help recognize concussions. However, to date, there has been very little research on the accuracy of using video analysis to identify signs of concussion and the various combinations of observed signs. METHODS: The objective of the study is to determine the accuracy of combinations of clinical signs of concussion identified using video analysis to identify concussions in the National Rugby League (NRL). Incidences of players using of the concussion interchange rule (CIR) (n = 156), including those where athletes were diagnosed with a concussion (n = 60), were used to calculate sensitivity and specificity of various combinations of concussion signs (unresponsiveness, slow to get up, clutching/shaking head, gait ataxia, vacant stare, and apparent seizure) and their independent association with an eventual diagnosis of concussion. RESULTS: Using video analysis, players who were diagnosed with a concussion showed a significantly greater total number of signs at the time of injury (mean = 3.4, SD = 1.3) than those who were removed from play but not diagnosed with a concussion (mean = 3.0, SD = 0.9 signs; p = .046). Players who did not return to play during the same game demonstrated a significantly greater number of total signs than those who did return to play in the same game following CIR activation (mean = 3.4, SD = 1.2 versus mean = 2.9, SD = 0.9; p = 0.002). The most common combination of signs that was observed was clutching/shaking the head and slowness in getting up (17.3%). The sensitivity of the total number of signs observed decreased as the number of signs increased (range = 0.13-0.62), while the specificity increased as more signs were observed (range = 0.29-0.90). Most of the combinations of different observed signs at the time of potential injury were highly specific (> 0.80), but not sensitive to an eventual diagnosis of concussion. When considering all potential predictor variables in a logistic regression model, anticipating the oncoming collision (OR = 3.92, 95% CI = 1.28 12.03), fewer number of defenders involved in the tackle (OR = 0.58, 95% CI = 0.36-0.92), and the presence of a blank or vacant stare (OR = 2.97, 95% CI = 1.26 7.01) were each significantly associated with concussion diagnoses. CONCLUSIONS: The use of video review in the NRL is challenging, but being aware of the combinations of possible concussion signs and the likelihood that various presentations result in a concussion diagnosis can provide a useful addition to sideline concussion identification and removal from play decisions. PMID- 29330739 TI - Patterns and outcomes of prescribing venous thromboembolism prophylaxis in hospitalized older adults: a retrospective cohort study. AB - Venous thromboembolism (VTE) is a major cause of morbidity and mortality in the United States. Hospitalized, medically ill older adults have increased risk; despite guidelines, data suggest suboptimal pharmacologic prophylaxis rates. Factors influencing provider prescribing non-compliance are unclear. We aimed to describe VTE prophylaxis practices and identify risk factors for, and outcomes of, prescribing non-compliance. A retrospective study was conducted of hospitalized adults aged >= 75 years, admitted to the medicine service of a large academic tertiary center from May 1, 2014 to June 30, 2015. The primary outcome was non-compliance, defined as the absence of an order for VTE prophylaxis for the duration of hospitalization or an interruption of prophylaxis exceeding 24 h. Secondary measures included in-hospital mortality, length of stay (LOS), and 30 day readmissions. Of 3751 patients (mean age 84.7 years), 97.6% of charts had prophylaxis orders; 11.0% showed non-compliance. Pharmacologic prophylaxis was prescribed in 83.3% of patients and mechanical prophylaxis alone in 14.3%. Factors associated with non-compliance included: higher body mass index (BMI) (p = 0.04), myocardial infarction (p = 0.01), congestive heart failure (p = 0.001), metastatic tumor (p = 0.01). Low mobility was not significantly associated with compliance. Subcutaneous unfractionated heparin was associated with compliance (p < 0.0001); warfarin (p < 0.0001), heparin infusion (p < 0.0001) and low-molecular weight heparin (p < 0.0001) with non-compliance. Non-compliance was associated with increased mortality (p = 0.01), LOS (p < 0.0001), readmissions (p = 0.0004). Known VTE risk factors (mobility, BMI, comorbidities) were not associated with prescriber compliance patterns. Integrating risk assessment models into provider practice may improve compliance. PMID- 29330740 TI - 3D reconstruction of dynamic liquid film shape by optical grid deflection method. AB - In this paper, we describe the optical grid deflection method used to reconstruct the 3D profile of liquid films deposited by a receding liquid meniscus. This technique uses the refractive properties of the film surface and is suitable for liquid thickness from several microns to millimeter. This method works well for strong interface slopes and changing in time film shape; it applies when the substrate and fluid media are transparent. The refraction is assumed to be locally unidirectional. The method is particularly appropriate to follow the evolution of parameters such as dynamic contact angle, triple liquid-gas-solid contact line velocity or dewetting ridge thickness. PMID- 29330741 TI - Coronary artery aneurysm regression after Kawasaki disease and associated risk factors: a 3-year follow-up study in East China. AB - Kawasaki disease (KD) is the leading cause of acquired heart disease due to its complicated coronary artery lesions. Up to now, few studies were focused on the status of persistent coronary artery aneurysms (CAA) in KD patients. The present study was designed to identify the coronary artery outcomes and seek the risk factors associated with the regression of CAA in KD patients. One hundred and twenty KD patients with CAA hospitalized in Children's Hospital of Soochow University from Jan 2008 to Dec 2013 were prospectively studied by a 3-year follow-up. Data regarding demographic, clinical, laboratory, and echocardiographic characteristics were documented and further analyzed. It was estimated that 39.2% of the patients had complete regression of CAA within 4 weeks, 59.2% within 8 weeks, and 70.0% within 16 weeks. No fatal cardiac events occurred. We found patients who aged <= 1 year, received initial intravenous immunoglobulin (IVIG) treatment after the 10th day of illness, and IVIG non responders were associated with the regression of persistent CAA. The relative risks were 1.55, 1.87, and 1.88, respectively. Age, initial IVIG treatment, and IVIG response were risk factors of persistent CAA, and more attention should be paid on these patients. PMID- 29330742 TI - Henoch-Schonlein purpura nephritis: initial risk factors and outcomes in a Latin American tertiary center. AB - The objective of this study was to evaluate prevalence, initial risk factors, and outcomes in Henoch-Schonlein purpura nephritis (HSPN) patients in Latin America. Two hundred ninety-six patients (validated EULAR/PRINTO/PRES HSP criteria) were assessed by demographic data, clinical/laboratorial involvements, and treatments in the first 3 months after diagnosis. They were followed-up in a Latin American tertiary center and were divided in two groups: with and without nephritis. Persistent non-nephrotic proteinuria, nephrotic proteinuria, and acute/chronic kidney injury were also systematically evaluated at 1, 5, 10, and 15 years after diagnosis. HSPN was evidenced in 139/296 (47%) in the first 3 months. The median age at diagnosis was significantly higher in HSPN patients compared without renal involvement [6.6 (1.5-17.7) vs. 5.7 (0.9-13.5) years, p = 0.022]. The frequencies of persistent purpura (31 vs. 10%, p < 0.0001), recurrent abdominal pain (16 vs. 7%, p = 0.011), gastrointestinal bleeding (25 vs. 10%, p < 0.0001), and corticosteroid use (54 vs. 41%, p = 0.023) were significantly higher in the former group. Logistic regression demonstrated that the independent variables associated with HSNP were persistent purpura (OR = 3.601; 95% CI (1.605-8.079); p = 0.002) and gastrointestinal bleeding (OR = 2.991; 95% CI (1.245-7.183); p = 0.014). Further analysis of patients without HSPN in the first 3 months revealed that 29/118 (25%) had persistent non-nephrotic proteinuria and/or hematuria in 1 year, 19/61 (31%) in 5 years, 6/17 (35%) in 10 years and 4/6 (67%) in 15 years after diagnosis. None of them had chronic kidney injury or were submitted to renal replacement therapy. The present study observed HSPN in almost one half of patients in the first months of disease, and HSPN was associated with persistent purpura and gastrointestinal bleeding. One fourth of patients had nephritis only evidenced during follow-up without severe renal manifestations. PMID- 29330743 TI - Acute downregulation of miR-155 leads to a reduced collagen synthesis through attenuating macrophages inflammatory factor secretion by targeting SHIP1. AB - Fibrosis, tightly associated with fibroblasts collagen synthesis, is related closely with inflammatory response. Our previously study found that acute downregulation of miR-155 at wound sites leads to a reduced fibrosis, however its particular mechanism is unclear. Herein, we aimed to explore the mechanism of miR 155 in reducing fibrosis. We first found that down-regulation of miR-155 inhibited macrophages transforming growth factor-beta1 (TGF-beta1) and IL-1beta secretion. Next, we found that co-cultured with macrophages increased the proliferation and collagen synthesis of fibroblasts, and downregulation of miR 155 in macrophages could effectively attenuate the accelerative effects. We further identified SH2 domain containing inositol-5-phosphatase 1 (SHIP1) as a direct target of miR-155 in macrophages, and the expression of SHIP1 was negatively correlated with the level of miR-155. We further confirmed that PI3K/Akt pathway was involved in this process. Last, we found that downregulation of miR-155 leads to a reduced fibrosis in sever burn rat. Taken together, these results indicate that down-regulation of miR-155 leads to a reduced fibroblasts proliferation and collagen synthesis through attenuating macrophages TGF-beta1 and IL-1beta secretion by targeting SHIP1 via PI3K/Akt pathway, suggesting its potential therapeutic effects on the treatment of skin fibrosis. PMID- 29330744 TI - c-Fos downregulation positively regulates EphA5 expression in a congenital hypothyroidism rat model. AB - The EphA5 receptor is well established as an axon guidance molecule during neural system development and plays an important role in dendritic spine formation and synaptogenesis. Our previous study has showed that EphA5 is decreased in the developing brain of congenital hypothyroidism (CH) and the EphA5 promoter methylation modification participates in its decrease. c-Fos, a well-kown transcription factor, has been considered in association with brain development. Bioinformatics analysis showed that the EphA5 promoter region contained five putative c-fos binding sites. The chromatin immunoprecipitation (ChIP) assays were used to assess the direct binding of c-fos to the EphA5 promoter. Furthermore, dual-luciferase assays showed that these three c-fos protein binding sites were positive regulatory elements for EphA5 expression in PC12 cells. Moreover, We verified c-fos positively regulation for EphA5 expression in CH model. Q-PCR and Western blot showed that c-fos overexpression could upregulate EphA5 expression in hippocampal neurons of rats with CH. Our results suggest that c-fos positively regulates EphA5 expression in CH rat model. PMID- 29330745 TI - [Treatment of rotational malalignment of the lower leg]. AB - BACKGROUND: Rotational malalignment after intramedullary nailing of tibial shaft fractures is not uncommon. In-toeing and out-toeing conditions in children are often the reason for orthopedic and traumatological medical consultation. OBJECTIVE: Evaluation of diagnostic modalities and therapeutic options for rotational malalignment in relationship to the patient's age. Surgical indications and efficacy of specific surgical techniques. MATERIAL AND METHODS: Systematic literature search in the German Institute for Medical Documentation and Information (DIMDI) and MEDLINE and evaluation of the currently published articles. RESULTS: In adults computed tomography (CT) scanning is the gold standard for measuring the rotational alignment of the lower leg. To avoid exposure to ionizing radiation, magnetic resonance imaging (MRI) is currently the preferred modality in children and adolescents. The indications for corrective osteotomy are dependent on the functional complaints as well as the rotation angle measured by CT or MRI. Presently, there is no published study which demonstrates a correlation between rotation of the lower leg and the development of arthrosis in the knee or ankle joint. When a rotational osteotomy above the tibial tubercle is performed, correction of the rotation and the distance between the tibial tuberosity and the trochlear groove (TT-TG) and therefore patellofemoral imbalance can be effectively treated. Treatment of rotational malalignment after tibial shaft fractures is performed by diaphyseal osteotomy with intramedullary nail stabilization. In children, supramalleolar rotational osteotomy with subsequent locking plate osteosynthesis or stabilization using external fixation is performed for torsion correction. CONCLUSION: If there is a suspicion of rotational malalignment in the lower leg, a CT scan can be performed in adults and MRI in children and adolescents. Surgical indications for corrective osteotomy are dependent on functional complaints as well as the CT and MRI measurements. The CT and MRI reference values are only published according to the method of Waidelich et al. and Jend et al. PMID- 29330747 TI - Recent Advances in Screening for Barrett's Esophagus. AB - OPINION STATEMENT: PURPOSE OF REVIEW: There is a pressing need for effective strategies to halt the increase in both the incidence and mortality of esophageal adenocarcinoma (EAC). Screening for Barrett's esophagus, which is the only known precursor of EAC, remains a ripe area for research, particularly with regard to identifying the target population, screening tools, and management of screen detected populations. This review aims to explore in depth the rationale for screening for Barrett's esophagus, recent biotechnological advances which may have the potential of making screening feasible, and also highlight the challenges which will have to be overcome in order make screening for BE a realistic prospect. RECENT FINDINGS: Imaging techniques such as portable transnasal endoscopy have the advantage of providing an immediate diagnosis of Barrett's esophagus as well as other significant pathologies such as reflux esophagitis and cancer; however, larger studies in non-enriched community screening populations are required to evaluate their feasibility. The capsule sponge is a cell-sampling device coupled with a biomarker, which has been most extensively evaluated with very promising results as regards feasibility, acceptability, accuracy, and cost-effectiveness. Its effectiveness in increasing the detection of Barrett's esophagus in primary care is currently being evaluated. Several Barrett's esophagus risk prediction scores have been developed with variable degrees of accuracy. Several minimally and non-invasive screening techniques have been studied including imaging and cell-sampling devices. Barrett's risk assessment models need to be further validated in independent, relevant screening populations with clear cut-offs for recommending screening to be defined. PMID- 29330748 TI - Surgery in elderly patients with intracranial meningioma: neuropsychological functioning during a long term follow-up. AB - Surgical treatment of elderly patients with meningioma is has proved to be safe, especially when patients are selected using dedicated surgical scores. These scores take into account tumor size, edema, location and patient's co morbidities. Neuropsychological functioning (NPF) of this kind of patients has been poorly studied in literature and it is not taken into account by these scores. Aim of our study was to describe the long-term outcome in terms of NPF of elderly patients undergoing surgery. Patients older than 70 years of age affected by intracranial meningioma and selected with the Clinical-Radiological Grading Score were included in our study. Neuropsychological testing was performed using a dedicated battery of tests before surgery, 3 and 12 months after surgery. Clinical, neurological and radiological outcomes were studied as well. Forty-one patients with a median age of 74 years were included in this study. Preoperatively only 1/41 patients showed a normal NPF with all tests scoring normally. Four out of 39 patients showed a complete neuropsychological recovery after 3 months; while 10/37 patients had a complete recovery after 12 months. NPF showed a trend of progressive improvement after surgery. Our study is the first experience reported in literature describing a long term follow-up in elderly patients after surgery for intracranial meningioma. In our series, surgery determined an improvement of NPF over time; especially with a low complication rate related to the selection of patients obtained through the CRGS. Further studies need to be performed in order to understand how brain edema, tumor size, volume and tumor location affect NPF in both short and long term. PMID- 29330749 TI - Toxicity and efficacy of lomustine and bevacizumab in recurrent glioblastoma patients. AB - The combination of lomustine and bevacizumab is a commonly used salvage treatment for recurrent glioblastoma (GBM). We investigated the toxicity and efficacy of lomustine plus bevacizumab (lom-bev) in a community-based patient cohort and made a comparison to another frequently used combination therapy consisting of irinotecan plus bevacizumab (iri-bev). Seventy patients with recurrent GBM were treated with lomustine 90 mg/m2 every 6 weeks and bevacizumab 10 mg/kg every 2 weeks. Toxicity was registered and compared to the toxicity observed in 219 recurrent GBM patients who had previously been treated with irinotecan 125 mg/m2 and bevacizumab 10 mg/kg every 2 weeks. The response rate was 37.1% for lom-bev and 30.1% for iri-bev. Median progression-free survival (PFS) was 23 weeks for lom-bev and 21 weeks for iri-bev (p = 0.9). Overall survival (OS) was 37 weeks for lom-bev and 32 weeks for iri-bev (p = 0.5). Lom-bev caused a significantly higher frequency of thrombocytopenia (11.4% grade 3-4) compared to iri-bev (3.5% grade 3-4). Iri-bev patients had more gastrointestinal toxicity with regard to nausea, vomiting, diarrhea, constipation and stomatitis. Within the limitations of the study lom-bev is a well-tolerated treatment for recurrent GBM, although hematological toxicity may be a dose limiting factor. No significant differences between lom-bev and iri-bev were observed with regard to PFS or OS. The differences in toxicity profiles between lom-bev and iri-bev could guide treatment decision in recurrent GBM therapy as efficacy is equal and no predictive factors for efficacy exist. PMID- 29330746 TI - Risk-stratified therapy for children with FLT3-ITD-positive acute myeloid leukemia: results from the JPLSG AML-05 study. AB - Acute myeloid leukemia harboring internal tandem duplication of FMS-like tyrosine kinase 3 (AMLFLT3-ITD) is associated with poor prognosis. We evaluated the results of the AML-05 study, in which all AMLFLT3-ITD patients were assigned to receive hematopoietic stem cell transplantation (HSCT) in the first remission (1CR). We also investigated the effects of additional genetic alterations on FLT3 ITD. The 5-year overall survival (OS) and event-free survival (EFS) rates among the 47 AMLFLT3-ITD patients were 42.2 and 36.8%, respectively. The 5-year disease free survival rate among 29 patients without induction failure was 58.4%. We defined the allelic ratio (AR) of FLT3-ITD to WT > 0.7 as high. Significant differences were found in OS (AR-high, 20% vs. AR-low, 66%, p < 0.001) and EFS (13 vs. 50%, p = 0.004). All five patients with concurrent NPM1 mutations survived, while seven of eight patients who expressed the NUP98-NSD1 chimera failed to achieve 1CR and died. Multivariate analysis revealed that AR > 0.7 and expression of the NUP98-NSD1 chimera strongly impacted OS and EFS. Although all the AMLFLT3-ITD patients received HSCT at 1CR, the treatment outcome of AMLFLT3 ITD patients did not improve compared with those in a previous study. Heterogeneity was observed among AMLFLT3-ITD patients. PMID- 29330750 TI - Immunologic and gene expression profiles of spontaneous canine oligodendrogliomas. AB - Malignant glioma (MG), the most common primary brain tumor in adults, is extremely aggressive and uniformly fatal. Several treatment strategies have shown significant preclinical promise in murine models of glioma; however, none have produced meaningful clinical responses in human patients. We hypothesize that introduction of an additional preclinical animal model better approximating the complexity of human MG, particularly in interactions with host immune responses, will bridge the existing gap between these two stages of testing. Here, we characterize the immunologic landscape and gene expression profiles of spontaneous canine glioma and evaluate its potential for serving as such a translational model. RNA in situ hybridization, flowcytometry, and RNA sequencing were used to evaluate immune cell presence and gene expression in healthy and glioma-bearing canines. Similar to human MGs, canine gliomas demonstrated increased intratumoral immune cell infiltration (CD4+, CD8+ and CD4+Foxp3+ T cells). The peripheral blood of glioma-bearing dogs also contained a relatively greater proportion of CD4+Foxp3+ regulatory T cells and plasmacytoid dendritic cells. Tumors were strongly positive for PD-L1 expression and glioma-bearing animals also possessed a greater proportion of immune cells expressing the immune checkpoint receptors CTLA-4 and PD-1. Analysis of differentially expressed genes in our canine populations revealed several genetic changes paralleling those known to occur in human disease. Naturally occurring canine glioma has many characteristics closely resembling human disease, particularly with respect to genetic dysregulation and host immune responses to tumors, supporting its use as a translational model in the preclinical testing of prospective anti-glioma therapies proven successful in murine studies. PMID- 29330751 TI - Prospective trial evaluating the sensitivity and specificity of 3,4-dihydroxy-6 [18F]-fluoro-L-phenylalanine (18F-DOPA) PET and MRI in patients with recurrent gliomas. AB - Treatment-related changes can be difficult to differentiate from progressive glioma using MRI with contrast (CE). The purpose of this study is to compare the sensitivity and specificity of 18F-DOPA-PET and MRI in patients with recurrent glioma. Thirteen patients with MRI findings suspicious for recurrent glioma were prospectively enrolled and underwent 18F-DOPA-PET and MRI for neurosurgical planning. Stereotactic biopsies were obtained from regions of concordant and discordant PET and MRI CE, all within regions of T2/FLAIR signal hyperintensity. The sensitivity and specificity of 18F-DOPA-PET and CE were calculated based on histopathologic analysis. Receiver operating characteristic curve analysis revealed optimal tumor to normal (T/N) and SUVmax thresholds. In the 37 specimens obtained, 51% exhibited MRI contrast enhancement (M+) and 78% demonstrated 18F DOPA-PET avidity (P+). Imaging characteristics included M-P- in 16%, M-P+ in 32%, M+P+ in 46% and M+P- in 5%. Histopathologic review of biopsies revealed grade II components in 16%, grade III in 43%, grade IV in 30% and no tumor in 11%. MRI CE sensitivity for recurrent tumor was 52% and specificity was 50%. PET sensitivity for tumor was 82% and specificity was 50%. A T/N threshold > 2.0 altered sensitivity to 76% and specificity to 100% and SUVmax > 1.36 improved sensitivity and specificity to 94 and 75%, respectively. 18F-DOPA-PET can provide increased sensitivity and specificity compared with MRI CE for visualizing the spatial distribution of recurrent gliomas. Future studies will incorporate 18F-DOPA-PET into re-irradiation target volume delineation for RT planning. PMID- 29330752 TI - Evaluation of the iron regulatory protein-1 interactome. AB - The interactions of iron regulatory proteins (IRPs) with mRNAs containing an iron responsive element (IRE) is a major means through which intracellular iron homeostasis is maintained and integrated with cellular function. Although IRE-IRP interactions have been proposed to modulate the expression of a diverse number of mRNAs, a transcriptome analysis of the interactions that form within the native mRNA structure and cellular environment has not previously been described. An RNA CLIP study is described here that identified IRP-1 interactions occurring within a primary cell line expressing physiologically relevant amounts of mRNA and protein. The study suggests that only a small subset of the previously proposed IREs interact with IRP-1 in situ. Identifying authentic IRP interactions is not only important to a greater understanding of iron homeostasis and its integration with cell biology but also to the development of novel therapeutics that can compensate for iron imbalances. PMID- 29330753 TI - Transfer of critically ill adults-assessing the need for training. AB - BACKGROUND: Transfer of critically ill patients within the hospital is commonly associated with adverse incidents, but, despite this, no standardised training exists on how to carry out this task. Very little information is published in the literature on the learning needs of staff undertaking these transfers, and this limits our ability to provide a focused and appropriate educational intervention. AIMS: This study aimed to explore the organisational, environmental and individual issues that increase risk to patients during intrahospital transport (IHT) and to explore the potential educational solutions to these issues as articulated by these practitioners. METHODS: This qualitative descriptive study was conducted in an Irish tertiary hospital critical care unit. Semi-structured interviews were conducted on critical care practitioners until data saturation was achieved. After manual transcription of the data, they were then analysed to identify themes. RESULTS: Two themes emerged: challenges related to intrahospital transport and plans to improve intrahospital transport. CONCLUSIONS: Organisational, communication and individual issues need to be considered when addressing problems associated with IHT. A multifaceted approach is needed, with a focus on organisational solutions in the form of checklists as well as educational interventions such as interprofessional education initiatives. Further studies on implementation of educational initiatives will add to the findings we report here. PMID- 29330754 TI - Systematic Review of Mammography Screening Educational Interventions for Hispanic Women in the United States. AB - In the United States (U.S.), Hispanics experience breast cancer disparities. Breast cancer is the leading cause of cancer-related death among Hispanic women, and Hispanic women receive mammography screening at lower rates than some other ethnic groups. This low rate of screening mammography is associated with increased risk for possible late-stage diagnosis and lower survival rates. Educational interventions could play a role in increasing screening mammography rates among Hispanic women. This systematic review synthesized the current literature on educational interventions to increase mammography screening among Hispanic women. The review included studies published between May 2003 and September 2017 with experimental and quasi-experimental interventions to increase mammography screening among Hispanics in the U.S. Five studies out of an initial 269 studies met inclusion criteria for the review. All studies employed an interpersonal intervention strategy with community health workers, or promotoras, to deliver the mammography screening intervention. For each study, odds ratios (OR) were calculated to estimate intervention effectiveness based on similar follow-up time periods. The study ORs resulted in a narrow range between 1.02 and 2.18, indicating a low to moderate intervention effect for these types of interpersonal cancer education interventions. The summary OR for the random effects model was 1.67 (CI 1.24-2.26). Hispanics exhibit lower levels of adherence to screening mammography than non-Hispanic whites. Interpersonal cancer education interventions such as the use of promotoras may help to mediate the impact of barriers to receiving a mammogram such as low health literacy, deficits in knowledge about the benefits of screening, and low awareness of the availability of screening services. PMID- 29330755 TI - [Lymphoma in rheumatic diseases]. AB - Various systemic inflammatory diseases, such as rheumatoid arthritis (RA), Sjogren's syndrome and systemic lupus erythematosus (SLE) are associated with an increased risk for the development of lymphomas. Studies on patients with RA and Sjogren's syndrome have shown that there is a clear association of the incidence of lymphoma with the severity and activity of the disease and lymphomas in particular are diseases which preferentially occur in immunosuppressed patients; therefore, knowledge of the different lymphoma subtypes, their prognosis and treatment options are important for rheumatologists. Currently, there is no evidence for an increased risk of lymphoma with the available conventional basis therapies or biologic disease-modifying antirheumatic drugs (DMARDs). The decision on how to treat a patient with previous lymphoma who requires antirheumatic treatment is more difficult as patients with previous malignancies are not included in clinical studies and in registries a bias with respect to patient selection must be taken into consideration. Decisions on the treatment approach, therefore need to be individualized and interdisciplinary management together with the treating hematologist is warranted. PMID- 29330756 TI - [Rheumatoid symptoms in patients with hematologic neoplasms]. AB - Paraneoplastic syndromes in lymphatic or myeloid neoplasms can present with musculoskeletal symptoms, vasculitis-like or febrile symptoms. Hematologic diseases are also associated with rheumatic diseases whereas inflammatory rheumatic diseases are often associated with an increased risk for lymphoproliferative disease. Atypical disease characteristics, lack of disease specific antibodies or therapeutic response are red flags for diagnosing paraneoplastic or coexistent malignant diseases. New onset of systemic symptoms, worsening of general condition, night sweats or weight loss need to be considered during follow-up and differential diagnostics. This article focuses on musculoskeletal, vasculitis-like and systemic signs of lymphatic or myeloid neoplasms either because of coexistency, tumor association or paraneoplastic disease. PMID- 29330757 TI - [Myelodysplastic syndrome, acute leukemia and stem cell transplantation]. AB - Myelodysplastic syndromes (MDS) represent a heterogeneous group of clonal hematopoietic stem cell disorders. They are characterized by inefficient hematopoiesis leading to peripheral cytopenia of one or more lineages and a variable risk of transformation into acute myeloid leukemia. They may either arise de novo as well as following exposition to environmental toxins, previous radiotherapy or chemotherapy or in the context of autoinflammatory diseases and related therapy. Characteristic cytogenetic abnormalities, along with the numbers of hematopoietic lineages affected and bone marrow blasts, enable an assessment of the risk of leukemic transformation. Acute leukemias are characterized by an accumulation of immature myeloid or lymphatic progenitor cells with limited differentiation capacity in the bone marrow. Proliferation of blast cells leads to suppression of normal hematopoiesis resulting in peripheral pancytopenia or leukocytosis associated with anemia and thrombocytopenia. Acute leukemias following MDS are defined as high-risk diseases. Intensive induction therapy followed by allogeneic stem cell transplantation is currently regarded as the only potentially curative treatment strategy. In this article the basic aspects of current diagnostics and treatment strategies for MDS and acute leukemia are outlined. Because of similarities with rheumatic inflammatory diseases, manifestations and treatment of graft versus host disease (GvHD) are also included. PMID- 29330758 TI - [Monoclonal gammopathy of undetermined significance and multiple myeloma]. AB - In rheumatological practice monoclonal gammopathy of undetermined significance (MGUS) is a common incidental finding. Several rheumatic inflammatory diseases are known to have an elevated risk of MGUS, which can evolve into multiple myeloma or other lymphatic malignancies. The relevant definitions of disease entities are described, as well as algorithms for further diagnostic work-up and follow-up for monoclonal gammopathy, depending on the risk of progression. Therapeutic strategies against multiple myeloma are presented. Some of these therapeutic modalities could play a future role in treating plasma cell-dominated autoimmune diseases. PMID- 29330759 TI - [Autoimmune reactions to immune checkpoint inhibitors]. AB - Immune checkpoint inhibitors (ICI) have dramatically changed the face of cancer treatment and are gaining in importance. The ICIs have now been approved for the treatment of advanced cancers, including melanoma, non-small-cell and small cell lung cancers, renal cell carcinoma, Hodgkin's lymphoma, head and neck cancers and urothelial carcinoma and further indications are to be expected. The organs most affected by an autoimmune reaction are the intestines, the musculoskeletal system, skin, endocrine organs, the liver and the lungs. As the indications for immune checkpoint blockade expand and ICIs are used in combination, it becomes increasingly more important for rheumatologists to recognize immune-related adverse events (irAEs), their connection to cancer immunotherapy and how to treat these events appropriately. The role of rheumatologists will take on growing importance as immunotherapies become more common as standard treatment of cancer and when used earlier in the course of the disease. Previously controlled autoimmune diseases can deteriorate when using ICIs, so this is a consideration when evaluating patients. Increased awareness of inflammatory arthritis, as well as other rheumatic manifestations as an adverse association with cancer immunotherapies, is imperative for making the diagnosis. Treatment algorithms are based on the severity of symptoms but in the case of rheumatic disease, treatment often needs to be tailored to the individual. The general strategy for evaluation and management of irAEs includes a thorough evaluation for infections. Mild irAE may be self-limiting, while more severe reactions are generally steroid responsive, albeit with potentially high dosage requirements. PMID- 29330761 TI - Correction to: Scientific white paper on concentration-QTc modeling. AB - The original version of this article unfortunately contained an error in Equation 1 under the section "Pre-specified linear mixed effects model". The correct equation has given below. PMID- 29330760 TI - Oxidized phospholipids stimulate production of stem cell factor via NRF2 dependent mechanisms. AB - Receptor tyrosine kinase c-Kit and its ligand stem cell factor (SCF) regulate resident vascular wall cells and recruit circulating progenitors. We tested whether SCF may be induced by oxidized palmitoyl-arachidonoyl-phosphatidylcholine (OxPAPC) known to accumulate in atherosclerotic vessels. Gene expression analysis demonstrated OxPAPC-induced upregulation of SCF mRNA and protein in different types of endothelial cells (ECs). Elevated levels of SCF mRNA were observed in aortas of ApoE-/- knockout mice. ECs produced biologically active SCF because conditioned medium from OxPAPC-treated cells stimulated activation (phosphorylation) of c-Kit in naive ECs. Induction of SCF by OxPAPC was inhibited by knocking down transcription factor NRF2. Inhibition or stimulation of NRF2 by pharmacological or molecular tools induced corresponding changes in SCF expression. Finally, we observed decreased levels of SCF mRNA in aortas of NRF2 knockout mice. We characterize OxPLs as a novel pathology-associated stimulus inducing expression of SCF in endothelial cells. Furthermore, our data point to transcription factor NRF2 as a major mediator of OxPL-induced upregulation of SCF. This mechanism may represent one of the facets of pleiotropic action of NRF2 in vascular wall. PMID- 29330762 TI - How honest are the signals? A protocol for validating wearable sensors. AB - There is growing interest among organizational researchers in tapping into alternative sources of data beyond self-reports to provide a new avenue for measuring behavioral constructs. Use of alternative data sources such as wearable sensors is necessary for developing theory and enhancing organizational practice. Although wearable sensors are now commercially available, the veracity of the data they capture is largely unknown and mostly based on manufacturers' claims. The goal of this research is to test the validity and reliability of data captured by one such wearable badge (by Humanyze) in the context of structured meetings where all individuals wear a badge for the duration of the encounter. We developed a series of studies, each targeting a specific sensor of this badge that is relevant for structured meetings, and we make specific recommendations for badge data usage based on our validation results. We have incorporated the insights from our studies on a website that researchers can use to conduct validation tests for their badges, upload their data, and assess the validity of the data. We discuss this website in the corresponding studies. PMID- 29330764 TI - The failing measurement of attitudes: How semantic determinants of individual survey responses come to replace measures of attitude strength. AB - The traditional understanding of data from Likert scales is that the quantifications involved result from measures of attitude strength. Applying a recently proposed semantic theory of survey response, we claim that survey responses tap two different sources: a mixture of attitudes plus the semantic structure of the survey. Exploring the degree to which individual responses are influenced by semantics, we hypothesized that in many cases, information about attitude strength is actually filtered out as noise in the commonly used correlation matrix. We developed a procedure to separate the semantic influence from attitude strength in individual response patterns, and compared these results to, respectively, the observed sample correlation matrices and the semantic similarity structures arising from text analysis algorithms. This was done with four datasets, comprising a total of 7,787 subjects and 27,461,502 observed item pair responses. As we argued, attitude strength seemed to account for much information about the individual respondents. However, this information did not seem to carry over into the observed sample correlation matrices, which instead converged around the semantic structures offered by the survey items. This is potentially disturbing for the traditional understanding of what survey data represent. We argue that this approach contributes to a better understanding of the cognitive processes involved in survey responses. In turn, this could help us make better use of the data that such methods provide. PMID- 29330763 TI - Safe and sensible preprocessing and baseline correction of pupil-size data. AB - Measurement of pupil size (pupillometry) has recently gained renewed interest from psychologists, but there is little agreement on how pupil-size data is best analyzed. Here we focus on one aspect of pupillometric analyses: baseline correction, i.e., analyzing changes in pupil size relative to a baseline period. Baseline correction is useful in experiments that investigate the effect of some experimental manipulation on pupil size. In such experiments, baseline correction improves statistical power by taking into account random fluctuations in pupil size over time. However, we show that baseline correction can also distort data if unrealistically small pupil sizes are recorded during the baseline period, which can easily occur due to eye blinks, data loss, or other distortions. Divisive baseline correction (corrected pupil size = pupil size/baseline) is affected more strongly by such distortions than subtractive baseline correction (corrected pupil size = pupil size - baseline). We discuss the role of baseline correction as a part of preprocessing of pupillometric data, and make five recommendations: (1) before baseline correction, perform data preprocessing to mark missing and invalid data, but assume that some distortions will remain in the data; (2) use subtractive baseline correction; (3) visually compare your corrected and uncorrected data; (4) be wary of pupil-size effects that emerge faster than the latency of the pupillary response allows (within +/-220 ms after the manipulation that induces the effect); and (5) remove trials on which baseline pupil size is unrealistically small (indicative of blinks and other distortions). PMID- 29330766 TI - Simulaaneous ethanol and cellobiose inhibition of cellulose hydrolysis studied with integrated equations assuming constant or variable substrate concentration. AB - The integrated forms of the Michaelis-Menten equation assuming variable substrate (depletion) or constant substrate concentration were used to study the effect of the simultaneous presence of two exoglucanase Cel7A inhibitors (cellobiose and ethanol) on the kinetics of cellulose hydrolysis. The kinetic parameters obtained, assuming constant substrate (K m =21 mM, K ic =0.035 mM; K icl =1.5*1015mM; kcat=12 h-1) or assuming variable substrate (K m =16 mM, K ic =0.037 mM; K icl =5.8*1014 mM; kcat=9 h-1), showed a good similarity between these two alternative methodologies and pointed out that bothethanol and cellobiose are competitive inhibitors. Nevertheless, ethanol is a very weak inhibitor, as shown by the large value estimated for the kinetic constant K icl . In addition, assuming different concentrations of initial accessible substrate present in the reaction, both inhibition and velocity constants are at the same order of magnitude, which is consistent with the obtained values. The possibility of using this kind of methodology to determine kinetic constants in general kinetic studies is discussed, and several integrated equations of different Michaelis Menten kinetic models are presented. Also examined is the possibility of determining inhibition constants without knowledge of the true accessible substrate concentration. PMID- 29330765 TI - Pudendal nerve terminal motor latency testing does not provide useful information in guiding therapy for fecal incontinence. AB - PURPOSE: Pudendal nerve terminal motor latency (PNTML) testing is a standard recommendation for the evaluation of fecal incontinence. Its role in guiding therapy for fecal incontinence has been previously questioned. The aim of this study was to evaluate the relationship between PNTML testing and anorectal dysfunction. METHODS: This was a retrospective analysis of data collected prospectively from patients who presented to a pelvic floor disorder center from 2007 to 2015. The relationship between PNTML (normal versus delayed) and anorectal manometry, fecal incontinence severity, and fecal incontinence-related quality of life scores was assessed using the Wilcoxon-Mann-Whitney test. RESULTS: Two hundred sixty-nine patients underwent PNTML testing, and 91.1% were female (N = 245) (median age 62.2 years). Normal PNTML was seen in 234 (87.0%) patients. Among 268 patients who underwent anorectal manometry, delayed PNTML was only significantly associated with median maximum anal squeeze pressure (P = 0.04). Delayed PNTML was not associated with a decrease in median fecal incontinence severity or fecal incontinence-related quality of life scores (N = 99). CONCLUSIONS: PNTML was only associated with median maximum anal squeeze pressure, and it was not associated with patient-reported severity of symptoms of fecal incontinence, changes in quality of life attributable to fecal incontinence, median mean resting anal pressure, or median maximum resting anal pressure. PNTML testing may not be relevant to current therapeutic algorithms for fecal incontinence and its routine use should be questioned. PMID- 29330767 TI - Ivabradine for the Treatment of Postural Orthostatic Tachycardia Syndrome: A Systematic Review. AB - INTRODUCTION: Postural orthostatic tachycardia syndrome (POTS) impacts millions of patients, but there is currently no gold standard treatment for this condition. Ivabradine is a novel heart rate (HR) lowering agent that acts on the sinoatrial node cells by selectively inhibiting the If-current. OBJECTIVE: The objective of this systematic review is to evaluate the evidence for the efficacy and safety of ivabradine for the treatment of POTS. METHODS: MEDLINE (from 1956 to August 2017) and EMBASE (from 1957 to August 2017) were queried with the following search term: "postural orthostatic tachycardia syndrome" OR "postural tachycardia syndrome" OR "chronic orthostatic intolerance" AND "ivabradine." Articles in English with clinical outcomes of human patient(s) treated with ivabradine for POTS were included. RESULTS: The initial search identified 73 articles. After screening, 13 articles were included. Two prospective open-label trials, three retrospective cohort studies, and eight case reports evaluated the safety and efficacy of ivabradine in a total of 132 patients with postural tachycardia. Overall, ivabradine lowered HR and provided symptomatic relief of POTS without blood pressure lowering. Dizziness, nausea, headache, and fatigue were the most common side effects and often did not lead to discontinuation of treatment. CONCLUSION: Based on this small sample, ivabradine appears to be a reasonable option for patients with POTS who have failed or are unable to tolerate other treatment options, however, but a randomized controlled trial in this population is needed. PMID- 29330768 TI - Comorbid insomnia symptoms predict lower 6-month adherence to CPAP in US veterans with obstructive sleep apnea. AB - PURPOSE: There is limited information on the association between pre-treatment insomnia symptoms and dysfunctional sleep beliefs with continuous positive airway pressure (CPAP) adherence in veterans with obstructive sleep apnea (OSA). Our aims were to describe demographic and sleep characteristics of veterans with and without comorbid insomnia and determine whether pre-treatment insomnia symptoms and dysfunctional sleep beliefs predict CPAP use after 6 months of therapy. METHODS: Hispanic veterans attending the Miami VA sleep clinic were recruited and completed the insomnia severity index, the dysfunctional sleep belief and attitude scale (DBAS), and other questionnaires. Participants were asked to return after 7 days and 1 and 6 months to repeat questionnaires and for objective CPAP adherence download. Hierarchical regression models were performed to determine adjusted associations of pre-treatment insomnia symptoms and DBAS sub scores on 6-month mean daily CPAP use. RESULTS: Fifty-three participants completed the 6-month follow-up visit with a mean CPAP use of 3.4 +/- 1.9 h. Veterans with comorbid insomnia had lower mean daily CPAP use (168 +/- 125 vs 237 +/- 108 min, p = 0.04) and lower percent daily CPAP use >= 4 h (32 +/- 32 vs 51 +/- 32%, p = 0.05) compared to participants without insomnia. In adjusted analyses, pre-treatment insomnia symptoms (early, late, and aggregated nocturnal symptoms) and sleep dissatisfaction were predictive of lower CPAP use at 6 months. Pre-treatment dysfunctional sleep beliefs were not associated with CPAP adherence. CONCLUSIONS: Pre-treatment nocturnal insomnia symptoms and sleep dissatisfaction predicted poorer 6- month CPAP use. Insomnia treatment preceding or concurrent with CPAP initiation may eliminate a barrier to regular use. PMID- 29330769 TI - Comorbid insomnia and sleep apnea in Veterans with post-traumatic stress disorder. AB - PURPOSE: The purpose of this study was to determine the impact of insomnia in Veterans with post-traumatic stress disorder (PTSD) and obstructive sleep apnea (OSA) on health-related outcomes before and after 12 weeks of continuous positive airway pressure (CPAP) treatment. METHODS: We conducted a prospective cohort study of Veterans with PTSD and documented apnea hypopnea index (AHI) >= 5 with and without clinically significant insomnia as determined by the Insomnia Severity Index (ISI). Health-related outcomes including PTSD checklist (PCL-M), SF-36, and Pittsburgh Sleep Quality Index (PSQI) were assessed at baseline and 12 weeks after initiation of OSA treatment. CPAP adherence was retrieved at each visit. RESULTS: Seventy-two Veterans including 36 with comorbid insomnia and OSA (COMISA) and 36 OSA-only were enrolled. Veterans with COMISA were younger (p = 0.03), had lower BMI (p < 0.001), and were more likely to report depression than those with OSA-only (p = 0.004). Although AHI was higher in the COMISA (p = 0.01), both groups expressed comparable daytime sleepiness (p = 0.16). The COMISA group had no significant change in SF-36 and PSQI after 12 weeks of treatment and used CPAP much less frequently than OSA-only group (p = 0.001). CONCLUSIONS: COMISA in Veterans with PTSD is associated with worse quality of life than those with OSA-only. Insomnia should be assessed in Veterans with PTSD who are not adherent to CPAP treatment. PMID- 29330770 TI - Decoding Selection Bias Imparted by Unpaired Cysteines: a Tug of War Between Expression and Affinity. AB - In a recombinant antibody scFv format, the presence of an unpaired cysteine (Cys) is implicated in reduced soluble expression and inefficient presentation in phage display. Compared to other species, antibodies derived from rabbits are more likely to contain this unpaired Cys residue at position 80 (Cys80), when generated in a scFv format. In a screening campaign to isolate rabbit scFv against cardiac troponin I (cTnI), it was found that, a large proportion of isolated cTnI-specific clones contained unpaired Cys80. To analyze the factors that led to the selection of anti-cTnI Cys80 scFv, after five rounds of biopanning, the biopanning experiments were repeated with a Cys80 scFv (MG4Cys), its alanine variant (MG4Ala), and an irrelevant high expressing scFv control. It was found that the selection and subsequent enrichment of MG4Cys scFv was ousted by the superior expressing variant MG4Ala, indicating that the Cys80 scFv was selected primarily due to its affinity. It is evident that phage-based selection is influenced by specific sequence characteristics affecting the expression as well as the binding specificity and this needs to be taken into account for selection of optimal antibody derivatives. PMID- 29330771 TI - Inhibition of Human Immunodeficiency Type 1 Virus (HIV-1) Life Cycle by Different Egg White Lysozymes. AB - Lysozyme is a relatively small enzyme with different biological activities, which is found in tears, saliva, egg white, and human milk. In the study, the anti-HIV 1 activity of lysozymes purified from quail, Meleagris, and hen egg white has been determined. For this end, a time-of-drug-addition assay was performed to identify the target of anti-HIV-1 agents and for determination of probable anti HIV-1 mechanism of the studied lysozyme, the binding affinity of the lysozymes to the human CD4 receptor was studied by molecular docking method. To define structural differences between studied lysozymes, structural motifs of them were predicted by MEME tool. Quail, hen, and Meleagris lysozymes showed potent anti HIV-1 activity with EC50 of 7.5, 10, and 55 nM, respectively. The time-of-drug addition study demonstrated that the inhibitory effect of all purified lysozymes is before HIV-1 infection. The frequency and intensity of CD4 expression in PBMCs decreased in the presence of all mentioned lysozymes. Also, the expression level of C-C chemokine receptor type 5 (CCR5) and chemokine receptor type 4 (CXCR4) on CD4+ T cells was not changed in cells treated with these lysozymes. The results of in silico study confirmed that the binding energy of quail lysozyme with CD4 was more than that of other studied lysozymes. The results revealed that these lysozymes restrict HIV-1 attachment to host cell CD4. PMID- 29330772 TI - Rice WRKY11 Plays a Role in Pathogen Defense and Drought Tolerance. AB - BACKGROUND: Plants are frequently subjected to abiotic and biotic stresses, and WRKY proteins play a pivotal role in the response to such stress. OsWRKY11 is induced by pathogens, drought, and heat, suggesting a function in biotic and abiotic stress responses. RESULTS: This study identified OsWRKY11, a member of WRKY group IIc. It is a transcriptional activator that localized to the nucleus. Ectopic expression of OsWRKY11 resulted in enhanced resistance to a bacterial pathogen, Xanthomonas oryzae pv. oryzae; resistance was compromised in transgenic lines under-expressing OsWRKY11. Ectopic expression of OsWRKY11 resulted in constitutive expression of defense-associated genes, whereas knock-down (kd) of OsWRKY11 reduced expression of defense-associated genes during pathogen attack, suggesting that OsWRKY11 activates defense responses. OsWRKY11 bound directly to the promoter of CHITINASE 2, a gene associated with defense, and activated its transcription. In addition, ectopic expression of OsWRKY11 enhanced tolerance to drought stress and induced constitutive expression of drought-responsive genes. Induction of drought-responsive genes was compromised in OsWRKY11-kd plants. OsWRKY11 also bound directly to the promoter of a drought-responsive gene, RAB21, activating its transcription. In addition, OsWRKY11 protein levels were controlled by the ubiquitin-proteasome system. CONCLUSION: OsWRKY11 integrates plant responses to pathogens and abiotic stresses by positively modulating the expression of biotic and abiotic stress-related genes. PMID- 29330774 TI - A collection of XY female cell lines. AB - Discordance between sexual phenotype and the 46,XY sex chromosome complement may be found in certain disorders of sexual development (DSD). Many of these DSD patients with female external genitalia and secondary sex characteristics have undescended testes and male internal genitalia. Causative mutations involving genes of the sex determining pathway, including the androgen receptor, SRY and the 5-alpha-reductase genes, are well-known, but the origin of other cases remain unresolved. In this report, we introduce our collection of lymphoblastoid lines derived from female patients with a 46,XY karyotype. These cell lines have been deposited and registered with the JCRB Cell Bank. They are available for comparison with other DSD cases and for further characterization of genetic loci involved in the mammalian sex determining pathway. PMID- 29330773 TI - Mechanistic regulation of epithelial-to-mesenchymal transition through RAS signaling pathway and therapeutic implications in human cancer. AB - RAS effector signaling instead of being simple, unidirectional and linear cascade, is actually recognized as highly complex and dynamic signaling network. RAF-MEK-ERK cascade, being at the center of complex signaling network, links to multiple scaffold proteins through feed forward and feedback mechanisms and dynamically regulate tumor initiation and progression. Three isoforms of Ras harbor mutations in a cell and tissue specific manner. Besides mutations, their epigenetic silencing also attributes them to exhibit oncogenic activities. Recent evidences support the functions of RAS oncoproteins in the acquisition of tumor cells with Epithelial-to-mesenchymal transition (EMT) features/ epithelial plasticity, enhanced metastatic potential and poor patient survival. Google Scholar electronic databases and PubMed were searched for original papers and reviews available till date to collect information on stimulation of EMT core inducers in a Ras driven cancer and their regulation in metastatic spread. Improved understanding of the mechanistic basis of regulatory interactions of microRNAs (miRs) and EMT by reprogramming the expression of targets in Ras activated cancer, may help in designing effective anticancer therapies. Apparent lack of adverse events associated with the delivery of miRs and tissue response make 'drug target miRNA' an ideal therapeutic tool to achieve progression free clinical response. PMID- 29330777 TI - Focus on Novel Instrumentation in Mass Spectrometry and Ion Mobility Spectrometry. PMID- 29330775 TI - A PEG-based method for the isolation of urinary exosomes and its application in renal fibrosis diagnostics using cargo miR-29c and miR-21 analysis. AB - PURPOSE: To assess a new and highly specific, but low-cost, easily performed and suitable for large-scale applications method for renal fibrosis (RF) diagnostics. METHODS: Thirty-five RF and twenty non-RF patients were enrolled in the study. An appropriate polyethylene glycol (PEG) was used to isolate urinary exosomes. The efficiency of isolation process was evaluated by the morphology and size observation, as well as the detection of specific markers (CD63, CD9). The expression level of exosomal miR-29c, miR-21 and the endogenous control snRNA-U6 were detected by qRT-PCR. The diagnostic potency of urinary exosomal miR-29c and miR-21 was estimated by the ROC method. Spearman's rank-order correlations analysis was used to assess the correlation between the miRNAs and clinical parameters, including pathological index. RESULTS: PEG-based method for isolation urinary exosome was effective and could be completed with a relatively low-speed centrifugal machine. Exosomal miR-29c and miR-21 were detected in all samples. The analysis of miRNAs in urinary exosomes revealed significant dys-regulation of miR-29c and miR-21 associated with RF. Exosomal miR-29c and miR-21 could predict degree of RF with AUC of 0.8333 and 0.7639 (P < 0.05). Correlation analysis showed that the level of miR-29c had a significant negative relationship with eGFR and the interstitial relative area. CONCLUSIONS: The PEG-based method for isolation urinary exosome is an inexpensive and easily performed approach. The application for cargo miRNA analysis is feasible. Urinary exosomal miR-29c may present a promising diagnostic approach. PMID- 29330776 TI - Second-Hand Exposure of Staff Administering Vaporised Cannabinoid Products to Patients in a Hospital Setting. AB - BACKGROUND: In many health settings, administration of medicinal cannabis poses significant implementation barriers including drug storage and safety for administering staff and surrounding patients. Different modes of administration also provide different yet potentially significant issues. One route that has become of clinical interest owing to the rapid onset of action and patient control of the inhaled amount (via breath timing and depth) is that of vaporisation of cannabinoid products. Although requiring a registered therapeutic device for administration, this is a relatively safe method of intrapulmonary administration that may be particularly useful for patients with difficulty swallowing, and for those in whom higher concentrations of cannabinoids are needed quickly. A particular concern expressed to researchers undertaking clinical trials in the hospital is that other patients, nurses, and clinical or research staff may be exposed to second-hand vapours in the course of administering vaporised products to patients. OBJECTIVE: The objective of this study was to take samples from two research staff involved in administering vaporised Delta9-tetrahydrocannabinol to participants in a clinical trial, to examine and quantitate cannabinoid presence. METHODS: Blood samples from two research staff were taken during the exposure period for three participants (cannabis users) over the course of approximately 2.5 h and analysed using tandem mass spectrometry. RESULTS: Blood samples taken over a vaporised period revealed exposure below the limit of detection for Delta9-tetrahydrocannabinol and two metabolites, using tandem mass spectrometry analytical methods. CONCLUSIONS: These results are reassuring for hospital and clinical trial practices with staff administering vaporised cannabinoid products, and helpful to ethics committees wishing to quantify risk. PMID- 29330778 TI - Isotopic Exchange HPLC-HRMS/MS Applied to Cyclic Proanthocyanidins in Wine and Cranberries. AB - Cyclic B-type proanthocyanidins in red wines and grapes have been discovered recently. However, proanthocyanidins of a different chemical structure (non cyclic A-type proanthocyanidins) already known to be present in cranberries and wine possess an identical theoretical mass. As a matter of fact, the retention times and the MS/MS fragmentations found for the proposed novel cyclic B-type tetrameric proanthocyanidin in red wine and the known tetrameric proanthocyanidin in a cranberry extract are herein shown to be identical. Thus, hydrogen/deuterium (H/D) exchange was applied to HPLC-HRMS/MS to confirm the actual chemical structure of the new oligomeric proanthocyanidins. The comparison of the results in water and deuterium oxide and between wine and cranberry extract indicates that the cyclic B-type tetrameric proanthocyanidin is the actual constituent of the recently proposed novel tetrameric species ([C60H49O24]+, m/z 1153.2608). Surprisingly, the same compound was also identified as the main tetrameric proanthocyanidin in cranberries. Finally, a totally new cyclic B-type hexameric proanthocyanidin ([C90H73O36]+, m/z 1729.3876) belonging to this novel class was identified for the first time in red wine. Graphical Abstract ?. PMID- 29330779 TI - Correction to: Age at disease onset and peak ammonium level rather than interventional variables predict the neurological outcome in urea cycle disorders. AB - Due to an unfortunate error during the typesetting process, the collaborators were presented incorrectly. PMID- 29330780 TI - Safety in Mixed Martial Arts: a 7-Year Review of Cancelled MMA Bouts in Calgary, Alberta, During the Pre-bout Medical Examination Period. AB - BACKGROUND: Presently, there is no literature that examines the reasons for the cancellation of amateur or professional mixed martial arts (MMA) bouts. The purpose of this study was to review the circumstances that lead to the cancellation of MMA bouts by Calgary ringside physicians during the pre-bout examination period and to identify any emerging patterns that may guide the regulatoin of this sport. METHODS: The case-series was constructed from the Calgary Combative Sports Commission pre-bout examination records and the medical records submitted by each athlete from January 2010 to December 2016. RESULTS: Cancelled bouts in the pre-bout examination periods represented 5.4% of all MMA bouts in Calgary. A total of 25 reasons lead to bout cancellation and included the following: failure to obtain required neuroimaging (28.0%), neuroimaging abnormalities (24.0%), incomplete routine screening investigations (16.0%), exceeding maximum weight differential between the two athletes (16.0%), injury in the pre-competition period (8.0%), dehydration (4.0%), and ECG abnormalities (4.0%). The abnormalities on neuroimaging (n of 6) included the following: post traumatic gliosis on MRI (n = 1, 16.7%), flares diffusely and findings consistent with microhemorrhage on MRI (n = 1, 16.7%), chronic orbital fracture with fat pad extrusion on CT (n = 2, 33.3%), lacunar infarct on MRI (1), and unspecified MRI abnormality (n = 1, 16.7%). Twenty-two athletes had bouts cancelled and of these three athletes had their bouts stopped for two reasons. CONCLUSIONS: The following recommendations are presented and include: the creation of guidelines regarding pre- and post-bout neuroimaging, the implementation of industry-wide minimum medical screening standards, the adoption of a longitudinal approach to weight monitoring, the development of competent ringside physician groups, and active oversight by the Combative Sports Commission during the matchmaking process. PMID- 29330781 TI - A Review of the Methods and Associated Mathematical Models Used in the Measurement of Fat-Free Mass. AB - Fat-free mass (FFM) represents the lean component of the body devoid of fat. It has been shown to be a useful predictor of drug dose requirements, particularly in obesity where the excess fat mass does not contribute to drug clearance. However, measuring FFM involves complex and/or expensive experimental methodologies that preclude their use in routine clinical practice. Thus, models to predict FFM from readily measurable variables, such as body weight and height, have been developed and are used in both population pharmacokinetic modelling and clinical practice. In this review, methods used to measure FFM are explained and compared in terms of their assumptions, precision, and limitations. These methods are broadly classified into six different principles: densitometry, hydrometry, bioimpedance, whole-body counting, dual energy X-ray absorptiometry, and medical imaging. They vary in their processes and key biological assumptions that are often not applicable in certain populations (e.g. children, elderly, and certain disease states). This review provides a summary of the various methods of FFM measurement and estimation, and links these methods to a scientific framework to help clinicians and researchers understand the usefulness and potential limitations of these methods. PMID- 29330782 TI - Characterization of the Pharmacokinetics of Vilaprisan: Bioavailability, Excretion, Biotransformation, and Drug-Drug Interaction Potential. AB - BACKGROUND AND OBJECTIVES: In-vitro data suggest that clearance of vilaprisan is mediated by cytochrome P450 3A4 (oxidation) and aldoketoreductases (reduction). To fully understand the elimination and biotransformation pathways of vilaprisan, a selective progesterone receptor modulator, and to quantify the impact of cytochrome P450 3A4 inhibition on the pharmacokinetics of vilaprisan, two clinical studies in healthy postmenopausal women were conducted. METHODS: In study 1, pharmacokinetics, mass balance, and metabolite patterns were determined after single oral administration of 5 mg of [14C]-labeled vilaprisan in six subjects. In study 2, pharmacokinetics were determined after single oral administration of 4 mg of vilaprisan without and with concomitant administration of the strong cytochrome P450 3A4 inhibitor itraconazole (200 mg/day) in 14 subjects. In addition, a microtracer dose of vilaprisan was given intravenously to determine absolute bioavailability, clearance, and volume of distribution. RESULTS: The dominant single compound in plasma was vilaprisan. No plasma metabolites exceeding 10% of total drug-related area under the concentration-time curve were detected. The absolute oral bioavailability of vilaprisan was ~ 60%. The mean clearance was ~ 7 L/h and the volume of distribution at steady state was ~ 360 L. Excretion occurred primarily via feces (73.5 +/- 3.70% of dose; urine: 13.1 +/- 1.71%; total recovery: 86.6 +/- 2.81%), mostly in a metabolized form. Only small amounts of the parent drug were found in excreta. When vilaprisan was administered together with itraconazole, exposure to vilaprisan was increased 6.2 fold (90% confidence interval 5.4-7.2). CONCLUSIONS: Vilaprisan is predominantly metabolized in the liver to a complex variety of metabolites, which are mainly excreted with feces. The pivotal role of cytochrome P450 3A4 in the metabolism of vilaprisan was confirmed. CLINICAL TRIAL REGISTRATION: EudraCT numbers 2013 000707-16 (mass balance study) and 2014-004929-41 (drug-drug interaction/microtracer study); NCT02456129 (drug-drug interaction/microtracer study). PMID- 29330783 TI - Clinical Pharmacokinetics and Pharmacodynamics of Infliximab in the Treatment of Inflammatory Bowel Disease. AB - Infliximab was the first monoclonal antibody to be approved for the treatment of pediatric and adult patients with moderately to severely active Crohn's disease (CD) and ulcerative colitis (UC). It has been shown to induce and maintain both clinical remission and mucosal healing in pediatric and adult patients with inflammatory bowel disease (IBD) who are unresponsive or refractory to conventional therapies. The administration of infliximab is weight-based and the drug is administered intravenously. The volume of distribution of infliximab is low and at steady state ranges from 4.5 to 6 L. Therapeutic monoclonal antibodies, such as immunoglobulins, are cleared from the circulation primarily by catabolism. Median infliximab half-life is approximately 14 days. Infliximab concentration-time data in patients with CD and UC have been shown to be highly variable within an individual patient over time and between individuals by multiple population pharmacokinetic models. Covariates that have been identified to account for a part of the observed inter- and intra-individual variability in clearance are the presence of antidrug antibodies, use of concomitant immunomodulators, degree of systemic inflammation, serum albumin concentration, and body weight, which can affect the pharmacodynamic response. This article provides a comprehensive review of the clinical pharmacokinetics and pharmacodynamics of infliximab, as well as the role of therapeutic drug monitoring in the treatment of IBD. PMID- 29330784 TI - Tacrolimus Concentration in Saliva of Kidney Transplant Recipients: Factors Influencing the Relationship with Whole Blood Concentrations. AB - OBJECTIVE: The objective of this study was to examine the association between tacrolimus concentration in oral fluids and in whole blood and to investigate the various factors that influence this relationship. PATIENTS AND METHODS: Forty-six adult kidney transplant recipients were included in the study. Study A (ten patients) included the collection of several paired oral fluid samples by passive drool over a 12-h post-dose period. Study B (36 patients) included the collection of oral fluids pre-dose and at 2 h after the tacrolimus dose under three conditions: un-stimulated, after stimulation with a tart candy, and after mouth rinsing. The tacrolimus concentration in oral fluids was measured by a specially developed sensitive and specific liquid chromatography mass spectrometry method. A salivary transferrin concentration of >1 mg/dL was used as a cut-off value for oral fluid blood contamination. RESULTS: Rinsing the oral cavity before sampling proved to provide the most suitable sampling strategy giving a correlation coefficient value of 0.71 (p = 0.001) between the tacrolimus concentration in oral fluids and the tacrolimus concentration in whole blood at trough. Mean and 95% confidence interval of tacrolimus concentration in oral fluids at the pre dose concentration for samples collected after mouth rinsing was 584 (436, 782) pg/mL. The ratio of the tacrolimus concentration in oral fluids to the tacrolimus concentration in whole blood (*100) was 11% (95% confidence interval 9-13) for all sampling times. Oral fluid pH or weight of a saliva sample did not influence the tacrolimus concentration in oral fluids. Tacrolimus distribution into oral fluids exhibited a delay with a pronounced counter-clockwise hysteresis with respect to the time after dose. A multivariate analysis of variance revealed that the tacrolimus concentration in oral fluids is related to the tacrolimus concentration in whole blood and tacrolimus plasma-binding proteins including albumin and cholesterol. CONCLUSION: An optimal sampling strategy for the determination of the tacrolimus concentration in oral fluids was established. Measuring the tacrolimus concentration in oral fluids appears to be a feasible and non-invasive method for predicting the concentration of tacrolimus in whole blood. PMID- 29330785 TI - Genetic Knockdown and Pharmacologic Inhibition of Hypoxia-Inducible Factor (HIF) Hydroxylases. AB - Reduced oxygen supply that does not satisfy tissue and cellular demand (hypoxia) regularly occurs both in health and disease. Hence, the capacity for cellular oxygen sensing is of vital importance for each cell to be able to alter its energy metabolism and promote adaptation to hypoxia. The hypoxia-inducible factor (HIF) prolyl hydroxylases 1-3 (PHD1-3) and the asparagine hydroxylase factor inhibiting HIF (FIH) are the primary cellular oxygen sensors, which confer cellular oxygen-dependent sensitivity upon HIF as well as other hypoxia-sensitive pathways, such as nuclear factor kappaB (NF-kappaB). Studying these enzymes allows us to understand the oxygen-dependent regulation of cellular processes and has led to the development of several putative novel therapeutics, which are currently in clinical trials for the treatment of anemia associated with kidney disease. Pharmacologic inhibition and genetic knockdown are commonly established techniques in protein biochemistry and are used to investigate the activity and function of proteins. Here, we describe specific protocols for the knockdown and inhibition of the HIF prolyl hydroxylases 1-3 (PHD1-3) and the asparagine hydroxylase factor-inhibiting HIF (FIH) using RNA interference (RNAi) and hydroxylase inhibitors, respectively. These techniques are essential tools for the analysis of the function of the HIF hydroxylases, allowing the investigation and discovery of novel functions and substrates of these enzymes. PMID- 29330786 TI - Kinetic Analysis of HIF Prolyl Hydroxylases. AB - Kinetic analyses of HIF prolyl 4-hydroxylases (HIF-P4Hs) allow determination of substrate, cosubstrate and cofactor requirements, analysis of the reaction rate, and inhibitory properties of the isoenzymes in vitro. Here we describe an assay measuring the substrate hydroxylation-coupled decarboxylation of radioactive 2 oxoglutarate to radioactive carbon dioxide as a fast, efficient, and diverse method to analyze the enzyme kinetics of HIF-P4Hs. PMID- 29330787 TI - Mass Spectrometry and Bioinformatic Analysis of Hydroxylation-Dependent Protein Protein Interactions. AB - Characterization of how a stimulus regulates the dynamics of protein-protein interaction is critical for understanding how a particular protein is regulated in an intracellular signaling network. Protein hydroxylation, which is a posttranslational modification catalyzed by oxygen-dependent enzymes, is a crucial regulator of protein-protein interactions. Under low oxygen conditions, the activity of many hydroxylases is inhibited, which results in a reduction of substrate hydroxylation. These changes alter the interactome of the substrate, and this dynamic rewiring of signaling networks explains crucial aspects of the adaptive response to hypoxia. In order to fully understand the systemic role of hydroxylation, it is necessary to identify a comprehensive set of substrates, as well as to determine which residues are hydroxylated. In addition, hydroxylation dependent changes in the interactome of the substrates are indicative of the molecular function of the modification. To identify new substrates of hydroxylases, we have developed an approach involving the use of a pharmacological substrate-trap strategy followed by label-free quantitative mass spectrometry. An overview is provided for the sample preparation, mass spectrometry techniques, and statistical analysis used for detection of new substrates, hydroxylated residue, and hydroxylation-dependent protein-protein interaction changes. PMID- 29330788 TI - Acquisition of Temporal HIF Transcriptional Activity Using a Secreted Luciferase Assay. AB - Here we describe a simple method based on secreted luciferase driven by a hypoxia inducible factor (HIF) response element (HRE) that allows the acquisition of dynamic and high-throughput data on HIF transcriptional activity during hypoxia and pharmacological activation of HIF. The sensitivity of the assay allows for the secreted luciferase to be consecutively sampled (as little as 1% of the total supernatant) over an extended time period, thus allowing the acquisition of time resolved HIF transcriptional activity. PMID- 29330790 TI - Transcriptional Profiling Using RNA-Seq to Study Hypoxia-Mediated Gene Regulation. AB - Exposing cells to a hypoxic environment leads to significant physiological and molecular alterations. Most of the hypoxic responses are regulated by the transcription factors known as hypoxia-inducible factors (HIFs). HIF1, a heterodimer of hypoxia-stabilized subunit HIF-1alpha and a constitutively expressed subunit HIF-1beta, serves as a key transcription factor that regulates gene expressions which are involved in cell growth, metabolism, and proliferation. The global expression patterns can be analyzed by utilizing RNA Seq to understand the cellular alterations in hypoxia. This technique enables us to understand the comprehensive regulation of gene expression by specific factors or environmental stimuli. Here, we describe the complete process of studying hypoxia-mediated gene expression by using RNA-Seq, including the hypoxic treatment of cells, RNA isolation, RNA quality check, cDNA library preparation, and library quality check. PMID- 29330789 TI - Fluorescence Lifetime Imaging Microscopy (FLIM) as a Tool to Investigate Hypoxia Induced Protein-Protein Interaction in Living Cells. AB - Fluorescence resonance energy transfer (FRET) is widely used as a method to investigate protein-protein interactions in living cells. A FRET pair donor fluorophore in close proximity to an appropriate acceptor fluorophore transfers emission energy to the acceptor, resulting in a shorter lifetime of the donor fluorescence. When the respective FRET donor and acceptor are fused with two proteins of interest, a reduction in donor lifetime, as detected by fluorescence lifetime imaging microscopy (FLIM), can be taken as proof of close proximity between the fluorophores and therefore interaction between the proteins of interest. Here, we describe the usage of time-domain FLIM-FRET in hypoxia-related research when we record the interaction of the hypoxia-inducible factor-1 (HIF-1) subunits HIF-1alpha and HIF-1beta in living cells in a temperature- and CO2 controlled environment under the microscope. PMID- 29330791 TI - Chromatin Immunoprecipitation of HIF-alpha in Breast Tumor Cells Using Wild Type and Loss of Function Models. AB - Chromatin immunoprecipitation (ChIP) is a powerful method to determine whether a protein of interest binds to specific regulatory elements of the genome. Herein, we outline protocols optimized to detect binding of Hypoxia-Inducible Factor (HIF)-1alpha or HIF-2alpha to putative hypoxia response elements (HREs) within HIF target genes expressed in breast tumor epithelial cells. PMID- 29330792 TI - Evaluating the Metabolic Impact of Hypoxia on Pancreatic Cancer Cells. AB - Hypoxia is frequently observed in human cancers and induces global metabolic reprogramming that includes an increase in glucose uptake and glycolysis, alterations in NAD(P)H/NAD(P)+ and intracellular ATP levels, and increased utilization of glutamine as the major precursor for fatty acid synthesis. In this chapter, we describe in detail various physiological assays that have been adopted to study the metabolic shift propagated by exposure to hypoxic conditions in pancreatic cell culture model that includes glucose uptake, glutamine uptake, and lactate release by pancreatic cancer cell lines. We have also elaborated the assays to evaluate the ratio of NAD(P)H/NAD(P)+ and intracellular ATP estimation using the commercially available kit to assess the metabolic state of cancer cells. PMID- 29330793 TI - Hypoxia-Induced Metabolomic Alterations in Pancreatic Cancer Cells. AB - Hypoxic conditions in the pancreatic tumor microenvironment lead to the stabilization of hypoxia-inducible factor-1 alpha (HIF-1alpha), which acts as the master regulator of cancer cell metabolism. HIF-1alpha-mediated metabolic reprogramming results in large-scale metabolite perturbations. Characterization of the metabolic intermediates and the corresponding metabolic pathways altered by HIF-1alpha would facilitate the identification of therapeutic targets for hypoxic microenvironments prevalent in pancreatic ductal adenocarcinoma and other solid tumors. Targeted metabolomic approaches are versatile in quantifying multiple metabolite levels in a single platform and, thus, enable the characterization of multiple metabolite alterations regulated by HIF-1alpha. In this chapter, we describe a detailed metabolomic approach for characterizing the hypoxia-induced metabolomic alterations using pancreatic cancer cell lines cultured in normoxic and hypoxic conditions. We elaborate the methodology of cell culture, hypoxic exposure, metabolite extraction, and relative quantification of polar metabolites from normoxia- and hypoxia-exposed cell extracts, using a liquid chromatography-coupled tandem mass spectrometry approach. Herein, using our metabolomic data, we also present the methods for metabolomic data representation. PMID- 29330794 TI - Hypoxia-Mediated In Vivo Tumor Glucose Uptake Measurement and Analysis. AB - Most solid tumors are hypoxic in nature due to the limited supply of oxygen to internal tissues. Hypoxia plays an important role in metabolic adaptations of tumors that contribute significantly to cancer pathogenesis. Among the several metabolic alterations induced by hypoxia, hypoxia-mediated increased glucose uptake serves as the hallmark of metabolic reprogramming. Hypoxia-mediated stabilization of hypoxia-inducible factor-1 alpha (HIF-1alpha) transcription factor leads to altered expression of several glycolytic genes and glucose transporters, which results in increased glucose uptake by tumor cells. Here we describe an easy and simple way of measuring the hypoxia-mediated tumor glucose uptake in vivo. The method is based on fluorescent imaging probe, RediJect 2-DG, which is a nonradioactive fluorescent-tagged glucose molecule. We have discussed orthotopic tumor implantation of HIF-1alpha knockdown and control pancreatic cancer cells and glucose uptake measurement in vivo by using IVIS imaging system along with reagent preparations. PMID- 29330795 TI - Measurement of Sensory Nerve Activity from the Carotid Body. AB - Carotid bodies are sensory organs for monitoring chemical composition of the arterial blood, especially the O2 levels. Carotid bodies are located bilaterally at the bifurcation of the common carotid artery. Hypoxia increases sensory nerve activity of the carotid body, which is transmitted to the brainstem neurons triggering reflex stimulation of breathing and blood pressure. Measurement of action potentials from the carotid sinus nerve is a widely used approach for understanding the mechanisms of hypoxic sensing by the carotid body. Here, we describe the detailed methodology for recording action potential signals from the carotid sinus nerve from in vivo and ex vivo carotid bodies from rats. PMID- 29330796 TI - Monitoring Functional Responses to Hypoxia in Single Carotid Body Cells. AB - The carotid body is the main arterial chemoreceptor in mammals that mediates the cardiorespiratory reflexes activated by acute hypoxia. Here we describe the protocols followed in our laboratory to study responsiveness to hypoxia of single, enzymatically dispersed, glomus cells monitored by microfluorimetry and the patch-clamp technique. PMID- 29330797 TI - Testing Acute Oxygen Sensing in Genetically Modified Mice: Plethysmography and Amperometry. AB - Monitoring responsiveness to acute hypoxia of whole animals and single cells is essential to investigate the nature of the mechanisms underlying oxygen (O2) sensing. Here we describe the protocols followed in our laboratory to evaluate the ventilatory response to hypoxia in normal and genetically modified animals. We also describe the amperometric technique used to monitor single-cell catecholamine release from chemoreceptor cells in carotid body and adrenal medulla slices. PMID- 29330798 TI - Immunohistochemistry of the Carotid Body. AB - Immunohistochemistry (IHC) enables the detection and distribution of proteins in cells of tissues. IHC has become an indispensable approach for studying oxygen sensing by the carotid body (CB). This chapter provides a detailed description of IHC of CB tissue and isolated CB cells. PMID- 29330799 TI - Hypoxia Signaling and Placental Adaptations. AB - Oxygen is an essential nutrient for cells. Oxygen is delivered to tissues via red blood cells through the vasculature. Molecular mechanisms mediating cellular responses to low oxygen tension have been identified. Hypoxia-inducible factors (HIFs) are activated by low oxygen and promote transcriptional regulation of downstream effector genes, which lead to cellular adaptations. Controlled hypoxia exposure is utilized as an experimental tool to investigate biological processes, regulating cellular adaptations. Here we describe detailed protocols for hypoxia exposure of pregnant rodent models and low oxygen exposure of trophoblast stem cells, utilizing gas-regulated chamber systems. The presentation also includes phenotypic analyses of the manipulated animal models and cells. PMID- 29330800 TI - Evaluation of Erythrocyte Changes After Normoxic Return from Hypoxia. AB - Hypoxia increases erythropoiesis by hypoxia-inducible factors (HIF), principally by HIF-2, which upregulates erythropoietin transcription. This results in an increase of red blood cell (RBC) production and delivery of more oxygen to tissues. Upon rapid return to normoxia, hypoxia-induced polycythemia is overcorrected by neocytolysis, a transient destruction of preferentially young RBCs bearing low catalase (downregulated by hypoxia-stimulated microRNA(miR)-21) caused by reactive oxygen species (ROS) from expanded mitochondria. In order to study molecular mechanism of neocytolysis, it is critical to differentiate life span of young and old RBCs and to measure the hematological changes before and after hypoxia treatment. Here we describe the methodological aspects of these measurements. PMID- 29330801 TI - Hypoxic Treatment of Zebrafish Embryos and Larvae. AB - Zebrafish has emerged as an informative animal model to study the biological impact and molecular mechanisms of hypoxia. Here we describe a simple method to induce hypoxia in zebrafish embryos and larvae. This protocol is easy and reproducible and does not require expensive equipment or specialized devices. It can be adapted in large, medium, and small scales. This protocol is also well suited for experiments requiring chemical drug treatment and can be applied to other fish and amphibian species. PMID- 29330802 TI - Microinjection of Antisense Morpholinos, CRISPR/Cas9 RNP, and RNA/DNA into Zebrafish Embryos. AB - In this chapter, we describe a stepwise protocol of microinjection. Using this method, antisense morpholinos, CRISPR-Cas9 ribonucleoprotein complexes, capped mRNA, and DNA can be delivered into fertilized zebrafish eggs to manipulate gene expression during development. This protocol can also be adapted for microinjection in other fish and amphibian species. PMID- 29330803 TI - Western Blot Analysis of C. elegans Proteins. AB - C. elegans has been widely used as a model organism for basic biological research and is particularly amenable for molecular genetic studies using a broad repertoire of techniques. Biochemical approaches, including Western blot analysis, have emerged as a powerful tool in C. elegans biology for understanding molecular mechanisms that link genotypes to phenotypes. Here, we provide a protocol for Western blot analysis using protein extracts obtained from C. elegans samples. PMID- 29330804 TI - In Vivo Manipulation of HIF-1alpha Expression During Glioma Genesis. AB - Hypoxia has long been recognized as a driving force of tumor progression and therapeutic resistance, and the transcription factor HIF-1alpha is believed to play a crucial role in these processes. Here we describe an efficient RCAS/Nes TVA system that allows for in vivo manipulation of HIF-1alpha expression in the mouse neural progenitor cells. Simple production of the recombinant avian virus RCAS enables quick delivery of gene of interest through injection into the neural progenitors of transgenic mice expressing the viral cognate receptor TVA under the nestin promoter. By crossing with various commercially available genetically engineered mouse strains, a repertoire of mouse models can be created to study gene-specific effects on glioma genesis. This chapter provides details of plasmid construction, viral production, and intracranial delivery of transgenes, a methodology that can be easily adapted to a specific purpose. PMID- 29330805 TI - In Vitro Assays of Breast Cancer Stem Cells. AB - Aldehyde dehydrogenase and mammosphere assays enable the cost-effective quantification and characterization of cancer stem cells (CSCs) from cancer cell lines as well as cancer tissue. Here we describe the quantification of CSCs in breast cancer cell lines using aldehyde dehydrogenase and mammosphere assays under hypoxic (1% O2) and non-hypoxic (20% O2) culture conditions. Using this method, a significant enrichment of CSCs compared to bulk populations is observed when breast cancer cells are exposed to 1% O2 for 72 h. PMID- 29330806 TI - Fluorescence-Activated Cell Sorting of Murine Mammary Cancer Stem-Like Cell Subpopulations with HIF Activity. AB - Fluorescence-activated cell sorting (FACS) is a common method to identify and to isolate subpopulations within a complex mixture of cells based on their light scatter and fluorescent staining profiles. FACS is widely used to enrich for normal tissue and tumor cells that have stem cell potential. Whereas FACS protocols using conventional breast cancer cell lines are relatively routine, additional technical challenges are encountered when sorting for cell populations from freshly digested solid tumors, particularly for use in downstream cancer stem cell (CSC) assays. First, it is more difficult to isolate live, single cells from whole tumors, and second, single tumor cells prepared from enzymatically digested tumors are typically more sensitive to cell death following the physical stresses of digestion, pipetting, and sorting. Herein methods are described that have been optimized to harvest and to FACS profile viable tumor epithelial cells digested from late-stage mammary tumors originating in the mouse mammary tumor virus (MMTV)-polyomavirus middle T antigen (PyMT) transgenic mouse. Protocols were designed to enrich for single, viable, MMTV-PyMT tumor cell populations sorted by FACS and to facilitate the collection of sorted cell subpopulations suitable for head-to-head comparison of CSC activity by tumorsphere assays in vitro or limiting dilution transplantation in vivo. PMID- 29330807 TI - Evaluation of Macrophage Polarization in Pancreatic Cancer Microenvironment Under Hypoxia. AB - Hypoxic microenvironment found in pancreatic ductal adenocarcinoma and other solid tumors is central to physiological and metabolic alterations of immune cells that significantly impact tumor growth dynamics. Hypoxic adaptations in the immune cells are primarily mediated by the stabilization of hypoxia-inducible factor-1 alpha (HIF-1alpha), which regulates cellular metabolism by modulating glycolysis and other interconnected metabolic pathways. HIF-1alpha plays distinct roles in M1 and M2 macrophage polarization, which, in turn, regulates tumor cell immune escape and growth. In this chapter, we describe a real-time PCR-based assay to monitor the transcript levels of Arg1 and Nos2 to assess the status of tumor-induced macrophage polarization under hypoxic conditions. This method can be effectively utilized to delineate the genes critical for M1/M2 polarization in the hypoxic tumor microenvironment and would provide opportunities to develop immunomodulating therapies to regulate the tumor growth, progression, and metastatic dissemination. PMID- 29330808 TI - Detection of Hypoxia and HIF in Paraffin-Embedded Tumor Tissues. AB - Hypoxia (insufficient O2 availability) is involved in various biological processes, such as tumorigenesis and inflammation. Hypoxia results in stabilization of hypoxia-inducible factors (HIFs) including HIF1alpha and HIF2alpha. Here we describe a protocol to detect mouse and human tissue hypoxia by using Hypoxyprobe and immunohistochemical staining for HIF1alpha and HIF2alpha. PMID- 29330809 TI - Analysis of Hypoxia and the Hypoxic Response in Tumor Xenografts. AB - Solid tumors are often characterized by insufficient oxygen supply (hypoxia), as a result of inadequate vascularization, which cannot keep up with the rapid growth rate of the tumor. Tumor hypoxia is a negative prognostic and predictive factor and is associated with a more aggressive phenotype in various tumor entities. Activation of the hypoxic response in tumors, which is centered around the hypoxia-inducible transcription factors (HIFs), has been causally linked to neovascularization, increased radio- and chemoresistance, altered cell metabolism, genomic instability, increased metastatic potential, and tumor stem cell characteristics. Thus, the hypoxic tumor microenvironment represents a main driving force for tumor progression and a potential target for therapeutic interventions. Here, we describe several methods for the analysis of tumor hypoxia and the hypoxic response in vivo in tumor xenograft models. These methods can be applied to various tumor models, including brain tumor xenotransplants, and allow simultaneously determining the extent and distribution of hypoxia within the tumor, analyzing HIF levels by immunohistochemistry and immunoblot, and quantifying the expression of HIF target genes in tumor tissue. The combination of these approaches provides an important tool to assess the role of the hypoxic tumor microenvironment in vivo. PMID- 29330810 TI - Correlation of Glioma Proliferation and Hypoxia by Luciferase, Magnetic Resonance, and Positron Emission Tomography Imaging. AB - Gliomas are the most common type of primary, malignant brain tumor and significantly impact patients, who have a median survival of ~1 year depending on mutational background. Novel imaging modalities such as luciferase bioluminescence, micro-magnetic resonance imaging (micro-MRI), micro-computerized tomography (micro-CT), and micro-positron emission tomography (micro-PET) have expanded the portfolio of tools available to study this disease. Hypoxia, a key oncogenic driver of glioma and mechanism of resistance, can be studied in vivo by the concomitant use of noninvasive MRI and PET imaging. We present a protocol involving stereotactic injection of syngenic F98 luciferase-expressing glioma cells generated by our laboratory into Fischer 344 rat brains and imaging using luciferase. In addition, 18-F-fludeoxyglucose, 18F-fluoromisonidazole, and 18F fluorothymidine PET imaging are compared with quantified luciferase flux. These tools can potentially be used for assessing tumor growth characteristics, hypoxia, mutational effects, and treatment effects. PMID- 29330811 TI - A nationwide survey of factors influencing adherence to ocular hypotensive eyedrops in Japan. AB - INTRODUCTION: Few reports have investigated the status of adherence in Japan on a large scale. We aimed to investigate the status of adherence to topical glaucoma treatment and its associated factors. METHODS: A nationwide survey was conducted as a prospective fashion. Participants in this survey were subjects with primary open-angle glaucoma, normal-tension glaucoma, or ocular hypertension or pseudoexfoliation glaucoma who had been prescribed anti-glaucoma ophthalmic eyedrops and whose ophthalmologist considered prescribing any fixed combination of ocular hypotensive eyedrops for the first time between 2011 and 2012. Subjects and their attending ophthalmologists independently completed a questionnaire by utilizing a fixed combination of ocular hypotensive eyedrops. RESULTS: A total of 1358 ophthalmologists from 1071 medical institutions participated in this survey. We registered 4430 subjects (2049 males and 2381 females). In total, data from 3853 subjects (87.6%) were analyzed after inclusion of subjects based on inclusion and exclusion criteria. Good adherence was defined as not forgetting instillation during the past week. Rates of good adherence reported by subjects and ophthalmologists were 72.4 and 78.5%, respectively (P < 0.0001). The consistency of adherence evaluation between subjects and ophthalmologists was moderate [kappa score 0.5025 (95% confidence interval 0.4740-0.5309)]. Significant factors associated with adherence were size of clinic, age, gender, number of types of ocular hypotensive eyedrops, ease of instillation, preferred number of eyedrops, preferred frequency of instillation of eyedrops, and knowledge of glaucoma. CONCLUSION: Adherence to ocular hypotensive eyedrops among Japanese subjects was relatively good. Concordance of adherence between subjects' reports and ophthalmologists' responses was moderate. Size of clinic, number of types of ocular hypotensive eyedrops, ease of instillation, preferred number of eyedrops, preferred frequency of instillation of eyedrops, and knowledge of glaucoma were associated with adherence among Japanese glaucoma subjects. PMID- 29330813 TI - Characteristics of Elderly Patients Initiating Sitagliptin or Non-DPP-4-Inhibitor Oral Antihyperglycemic Agents: Analysis of a Cross-Sectional US Claims Database. AB - INTRODUCTION: Previous analyses concluded that patients initiating treatment with sitagliptin are older and have more comorbidities than patients initiating treatment with other oral antihyperglycemic agents (OAHAs). However, these studies focused on the general population or subjects <= 65 years of age. We sought to compare differences in baseline characteristics of elderly patients (>= 65 years of age) with T2DM initiating sitagliptin vs. non-DPP-4 inhibitor (non DPP-4i) OAHA in the MarketScan(r) Medicare Supplemental Database. METHODS: Relevant patients were identified in the MarketScan(r) Medicare Supplemental Database and categorized according to the complexity of their antihyperglycemic treatment: initiating monotherapy, escalating to dual combination therapy, or escalating to triple combination therapy. Within each category, the comparison between patients initiating use of sitagliptin or non-DPP-4i OAHA was made within three age groups: 65-74, 75-84, and >= 85 years. Gender and comorbidity recorded within the 12 months prior to the index date (date of initiation/escalation of treatment) were assessed as baseline characteristics in each group. Between treatment group differences in each covariate were compared using standardized differences. RESULTS: Patients with T2DM who initiated treatment with sitagliptin tended to be older and were more likely to have a pre-treatment history of arrhythmia, congestive heart failure, peripheral vascular disease, renal failure, and stroke than those initiating non-DPP-4i OAHAs, with the most pronounced differences observed between patients initiating monotherapy in all three age groups. As treatment complexity advanced to dual combination therapy, the differences were attenuated and mostly observed in the 75-84 and >= 85 age groups. In patients aged 65-74 years initiating triple therapy, no differences were observed between groups. CONCLUSION: Patients >= 65 years with T2DM initiating sitagliptin tend to be older and have more comorbidities than those prescribed other classes of OAHA. Appropriate adjustment is required to minimize the impact of potential confounding and channeling bias in any comparative analyses including users of sitagliptin. FUNDING: Merck & Co., Inc., Kenilworth, NJ, USA. PMID- 29330812 TI - Evaluation of the Effect of Alogliptin on Tissue Characteristics of the Carotid Wall: Subanalysis of the SPEAD-A Trial. AB - INTRODUCTION: Ultrasonic tissue characterization of the carotid wall using gray scale median (GSM) reflects its composition and low-GSM plaque is considered to be unstable. The present study evaluated the effect of alogliptin, a dipeptidyl peptidase-4 inhibitor, on the longitudinal change in GSM, an index of the tissue characteristics of the carotid wall, in patients with type 2 diabetes (T2DM). METHODS: This is a post hoc subanalysis using data obtained from the SPEAD-A trial, a randomized controlled trial that demonstrated the beneficial effect of alogliptin treatment on the progression of carotid intima-media thickness in patients with T2DM with no past history of apparent cardiovascular disease. A total of 322 subjects (161 in the alogliptin treatment group and 161 in the conventional treatment group) were enrolled. The primary outcome was the change from baseline in mean GSM-CCA (common carotid artery) during the 104-week observation period. RESULTS: Both alogliptin treatment and conventional treatment significantly increased the mean GSM-CCA (from 60.7 +/- 12.3 to 65.9 +/- 10.1, p < 0.001 and 58.8 +/- 14.4-65.2 +/- 12.2, p < 0.001, respectively) and there was no significant difference in changes in mean GSM-CCA between the treatment groups (p = 0.95). Additionally, there were no differences in the changes in the left and right GSM-CCA between the groups. CONCLUSIONS: A post hoc subanalysis revealed an improvement of tissue characteristics in the carotid arterial wall in both the alogliptin treatment group and the conventional treatment group during the 104-week treatment period and that there was no significant difference between the treatment groups. CLINICAL TRIAL REGISTRATION: UMIN000019951. PMID- 29330814 TI - Contrasting effects of alkaline amendments on the bioavailability and uptake of Cd in rice plants in a Cd-contaminated acid paddy soil. AB - Reducing cadmium (Cd) concentrations in rice grains is important for food safety, particularly in acid paddy fields in South China where the soils have been previously contaminated with Cd. A field experiment was conducted to evaluate the effects of four alkaline amendments, i.e., lime, compost, biochar, and carbide slag on soil bioavailability and uptake of Cd in plants of two rice cultivars (Oryza sativa L.) in a Cd-contaminated acid paddy soil. The addition of these amendments significantly decreased the concentrations of CaCl2-extractable Cd by 13-41%. Cd in the acid-soluble fraction was decreased in these amended soils while it increased in the residual fraction. The amendments also decreased the uptake of Cd in the plants at the tillering and mature growth stages. The concentrations of Cd in plant tissues at maturity were in the order: root > shoot > bran > polished rice > husk. The amendment of carbide slag decreased Cd concentration in rice grains the most, followed by lime, biochar, and compost. The increases in soil pH and the decreases in the acid-soluble fraction of Cd (F1 Cd) indicated that these amendments can directly transform the highly availability fraction of Cd to a more stable fraction (residual Cd fraction) in soils. Furthermore, the Cd concentrations in polished rice grains of the two rice cultivars used were reduced by 66-67% by treatment with carbide slag. Our study suggests that carbide slag has a great potential to reduce the bioavailability and uptake of Cd in rice plants in Cd-contaminated acid paddy field soils. PMID- 29330815 TI - Supplementing dietary rosemary (Rosmarinus officinalis L.) powder and vitamin E in broiler chickens: evaluation of humoral immune response, lymphoid organs, and blood proteins. AB - The aim of the present study was to evaluate the effect rosemary (Rosmarinus officinalis L.) powder (RP) and vitamin E (VE) at different levels on humoral immunity of broilers during a 42-day production cycle. A total of 270 1-day-old male chicks were assigned to nine groups with three replicates of ten birds each, and diets were supplemented with 0, 0.5, or 1.0% RP and 0, 100, or 200 mg/kg VE, respectively. Commercial-inactivated vaccines against avian influenza (AI) and Newcastle disease (ND) viruses, and living infectious bronchitis virus (IBV) vaccine were administered by spray method. Sheep red blood cells (SRBC) were administered subcutaneously. Blood samples were collected from birds 1 week after each vaccination to determine antibody titers. At the 42nd day, blood samples were also assessed for globulin level, and lymphoid tissues (thymus, spleen, and bursa) were weighed. Neither antibody titers against viruses nor lymphoid tissues weight were affected by RP and/or VE (P > 0.05) treatments. However, broilers supplemented with 0 mg/kg of VE had lower antibody titers against SRBC than those fed 100 mg/kg of VE (P < 0.05) at the 24th day. A significant RP * VE interaction effect (P < 0.05) on plasma globulin level was observed. The findings of our study suggest that dietary RP and VE additives can interact and modulate the humoral immunity of broilers, but not sufficiently to improve antibody titers against specific virus during a 42-day production cycle. PMID- 29330816 TI - Testing the role of external debt in environmental degradation: empirical evidence from Turkey. AB - This study investigates the role of external debt stock in Turkey, which has suffered from heavy (external and domestic) debt stock for many years. Annual data from 1960 to 2013 was analyzed using time series analysis in order to study this. The results confirm the validity of the conventional environmental Kuznets curve (EKC) in the case of Turkey. However, this study also found that Turkey's external debt stock did not influence the Turkish economy's long-term EKC behavior. Fortunately, the results suggest that there are important interactions among external debt stock, CO2 emissions, energy consumption, and real income; that is, changes in external debt volume precede changes in these aggregates' volumes. PMID- 29330817 TI - Effect of levofloxacin, pazufloxacin, enrofloxacin, and meloxicam on the immunolocalization of ABCG-2 transporter protein in rabbit retina. AB - Adenosine triphosphate-binding cassette (ABC) sub-family G member-2 (ABCG-2) is a transporter protein, implicated for multi-drug efflux from tissues. This study evaluated the effect of fluoroquinolones; levofloxacin, pazufloxacin and enrofloxacin, and non-steroidal anti-inflammatory drug, meloxicam; on the immunolocalization of ABCG-2 transporter protein of rabbit retinas. Thirty-two male rabbits were randomly divided in to eight groups. Control group was gavaged, 2% benzyl alcohol in 5% dextrose since these chemicals are excipients of the drug preparations used in the treatment groups of this study. Four groups were exclusively gavaged, levofloxacin hemihydrate (10 mg/kg body weight b.i.d 12 h), pazufloxacin mesylate (10 mg/kg body weight b.i.d 12 h), enrofloxacin (20 mg/kg body weight o.d.), and meloxicam (0.2 mg/kg body weight o.d.), respectively. Three other groups were co-gavaged meloxicam with above fluoroquinolones, respectively. These drugs were administered for 21 days. ABCG-2 immunolocalization was mild in the retinas of control and levofloxacin-alone treated groups. The immunolocalization intensity was significantly higher in meloxicam-alone-treated group when compared to control and levofloxacin-alone treated groups. Immunolocalization of this transporter increased in the levofloxacin-meloxicam co-treated group when compared to the levofloxacin-alone treated group. Highest immunolocalization was observed in the enrofloxacin meloxicam co-treated group although the immunolocalization of all treatment groups, except the levofloxacin-alone-treated group, was significantly higher than the control and levofloxacin-alone-treated groups. PMID- 29330818 TI - Trace elements in four freshwater fish from a mine-impacted river: spatial distribution, species-specific accumulation, and risk assessment. AB - The concentrations of 16 elements (Mg, Al, Ca, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Sr, Cd, Ba, and Pb) were determined in four fish species (Carassius auratus, Squaliobarbus curriculus, Pelteobagrus fulvidraco, and Silurus asotus) collected in the Xiang River, a mine-impacted river in Southern China. The mean values of the elements analyzed in fish muscles were in the decreasing order of Mg > Ca > Zn > Fe > Sr > Al > Cu > Mn > Ba > As > Cr > Pb > Ni > V > Co > Cd. The concentrations of Mg, Ca, Sr, Ba, and Cu in omnivorous species were found to be significantly higher (p < 0.05) than those in carnivorous species. Negative correlations observed between most element concentrations and fish sizes indicated the younger individuals accumulated more elements than the older ones. Principle component analysis and orthogonal partial least squares discriminant analysis were employed to characterize the effects on element bioaccumulation using the element concentration matrix. The elemental profiles preferred to cluster according to differences in fish species rather than in sampling sites. The potential health risk evaluated through Monte Carlo simulation showed no appreciable adverse impact on human health from exposure to trace elements in fish muscles through consumption. PMID- 29330819 TI - Preparation of a synthetic seed for the common reed harboring an endophytic bacterium promoting seedling growth under cadmium stress. AB - Bacterial seed endophytes can facilitate germination and early plant development. Therefore, the introduction of seed-borne endophytes may improve selected plant characteristics across generations. In this study, regenerated plantlets of common reed (Phragmites australis) were inoculated with activated sludge to obtain a specific functional endophytic bacterium. Denaturing gradient gel electrophoresis demonstrated that abundant endophytic bacteria could be enriched in the roots. A siderophore-producing endophytic bacterium was isolated from the roots and identified as Herbaspirillum frisingense RE3-3 based on 16S rRNA sequences. This endophyte secrets indole-3-acetic acid to promote plant growth and cadmium-binding siderophores. The strain was successfully colonized into synthetic seeds using bacterium-propagule co-cultivation and transmitted to regenerated seedlings. These seedlings exhibited improved growth under cadmium stress. This study identifies Herbaspirillum colonization and transmission as a potentially valuable strategy to improve the phytotoxin resistance of reeds for constructed wetlands. PMID- 29330820 TI - Effect of ion exchange on the rate of aerobic microbial oxidation of ammonium in hyporheic zone sediments. AB - Microbially mediated ammonium oxidation is a major process affecting nitrogen transformation and cycling in natural environments. This study investigated whether ion exchange process can affect microbially mediated aerobic oxidation of ammonium in a hyporheic zone (HZ) sediments from the Columbia River at US Department of Energy's Hanford site, Washington State. Experiments were conducted using synthetic groundwater and river water to investigate their effect on ammonium oxidation. Results indicated that ammonium sorption through ion exchange reactions decreased the rate of ammonium oxidation, apparently resulting from the influence of the ion exchange on dissolved ammonium concentration, thus decreasing the bioavailability of ammonium for microbial oxidation. However, with the decrease in dissolved ammonium concentration, the sorbed ammonium released back to aqueous phase, and became bioavailable so that all the ammonium in the suspensions were oxidized. Our results implied a dynamic change in ammonium oxidation rates in an environment such as at HZ where river water and groundwater with different chemical compositions exchange frequently that can affect ammonium sorption and desorption through ion exchange reactions. PMID- 29330821 TI - Effects of ferrous sulfate amendment and water management on rice growth and metal(loid) accumulation in arsenic and lead co-contaminated soil. AB - Arsenic (As) and lead (Pb) commonly co-exist with high concentrations in paddy soil mainly due to human activities in south of China. This study investigates the effect of ferrous sulfate (FeSO4) amendment and water management on rice growth and arsenic (As) and lead (Pb) accumulation in rice plants. A paddy soil co-contaminated with As and Pb was chosen for the pot experiment with three FeSO4 levels (0, 0.25, and 1%, on a dry weight basis) and two water managements (flooded, non-flooded). The concentrations of As and Pb in iron plaques and rice plants were determined. Application of FeSO4 and non-flooded conditions significantly accelerated the growth of rice plants. With the addition of FeSO4, iron plaques were significantly promoted and most of the As and Pb were sequestered in the iron plaques. The addition of 0.25% FeSO4 and non-flooded conditions did not significantly change the accumulation of As and Pb in rice grains. The practice also significantly decreased the translocation factor (TF) of As and Pb from roots to above-ground parts which might have been aided by the reduction of As and Pb availability in soil, the preventing effect of rice roots, and the formation of more reduced glutathione (GSH). Flooded conditions decreased the Pb concentration in rice plants, but increased As accumulation. Moreover, rice grew thin and weak and even died under flooded conditions. Overall, an appropriate FeSO4 dose and non-flooded conditions might be feasible for rice cultivation, especially addressing the As issue in the co-contaminated soil. However, further detailed studies to decrease the accumulation of Pb in edible parts and the field application in As and Pb co-contaminated soil are recommended. PMID- 29330822 TI - Biochemical changes in mussels submitted to different time periods of air exposure. AB - Intertidal species face multiple stressors on a daily basis due to their particular habitat. The submergence at high tide in the aquatic environment and emergence at low tide to the aerial environment, associated with a wide variation of abiotic parameters, along with anthropogenic contamination are some of the daily stresses that these organisms are exposed to. With such a dynamic environment, organisms developed strategies that allow them to avoid or tolerate these stressors. Among these species, bivalves are some of the most hypoxia tolerant, being commonly used as a biomonitoring tool due to their capacity to accumulate pollutants from the environment and reflect the imposed toxic impacts. However, when evaluating the response ability of organisms to different stressors under laboratory conditions, it is not common to consider the fact that exposure to tides can act as a confounding factor. The present study assessed the effects of air exposure on the biochemical (metabolic capacity, energy reserves, and oxidative stress related biomarkers) performance of intertidal Mytilus galloprovincialis mussels. Specimens of M. galloprovincialis were submitted once every 24 h to different periods of air exposure (3 and 6 h) for 14 days, under constant air and seawater temperature (19 +/- 1 degrees C). Results obtained revealed that air exposure can cause biochemical changes in mussels. The present findings demonstrated that individuals exposed to air induced superoxide dismutase (SOD) and catalase (CAT) activity as mechanisms to withstand the abiotic changes while mobilizing lipid content as the principal source of energy, and increasing protein content possibly as a result of an increase in the number of antioxidant defense enzymes. Moreover, individuals under air exposure suffered higher oxidative damage while showing higher metabolic rate. Results demonstrated that longer periods of air exposure induced more injuries, since individuals emerged during 6 h presented higher oxidative stress than individuals under 3 h of air exposure. PMID- 29330824 TI - Colonic fistula caused by remaining inflow cannula 14 years after left ventricular assist device explantation. AB - Intestinal complication associated with left ventricular assist device (LVAD) implantation is not rare, and sometimes results in serious condition of patients, if occurred. We report a rare case in which remaining foreign body after LVAD explantation resulted in colonic fistula 14 years after LVAD explantation. PMID- 29330823 TI - Metal Concentrations in Tissues of Gadwall and Common Teal from Miankaleh and Gomishan International Wetlands, Iran. AB - Miankaleh and Gomishan International Wetlands are important wintering areas for waterbirds in the Caspian Sea region. Previous studies revealed increased exposure to metals in some species of waterbirds using these wetlands. In this study, we examined concentrations of cadmium (Cd), chromium (Cr), iron (Fe), lead (Pb), and zinc (Zn) in kidneys, liver, and pectoral muscle of wintering Gadwall (Anas strepera) and Common Teal (Anas crecca) collected in 2012. In addition, we measured concentrations of these elements in water and sediments from the collection sites. The genders differed in only one element/tissue combination, i.e., concentrations of Fe were greater in the livers of males. Concentrations of elements observed in Gadwall were generally higher than in Common Teal; only renal Cr and muscle Zn did not differ between species. Mean Cd concentrations in Gadwall exceeded background levels, reaching 1.94 MUg/g ww in kidneys and 1.09 MUg/g ww in liver. Similarly, Pb concentrations in Gadwall were also elevated (4.14 MUg/g ww in kidneys, 3.22 MUg/g ww in liver). Concentrations of other metals were within ranges commonly found in waterfowl. Concentrations of elements in the environment were elevated above background and comparable with the data obtained for this region by other scientists. However, these levels were deemed to not be great enough to pose an acute health risk to waterfowl. Given increased concentrations of some metals in duck tissues, further inquiry into the source of the exposure is needed for this area. PMID- 29330825 TI - Poststimulation time interval-dependent effects of motor cortex anodal tDCS on reaction-time task performance. AB - Anodal transcranial direct current stimulation (tDCS) induces long-term potentiation-like plasticity, which is associated with long-lasting effects on different cognitive, emotional, and motor performances. Specifically, tDCS applied over the motor cortex is considered to improve reaction time in simple and complex tasks. The timing of tDCS relative to task performance could determine the efficacy of tDCS to modulate performance. The aim of this study was to compare the effects of a single session of anodal tDCS (1.5 mA, for 15 min) applied over the left primary motor cortex (M1) versus sham stimulation on performance of a go/no-go simple reaction-time task carried out at three different time points after tDCS-namely, 0, 30, or 60 min after stimulation. Performance zero min after anodal tDCS was improved during the whole course of the task. Performance 30 min after anodal tDCS was improved only in the last block of the reaction-time task. Performance 60 min after anodal tDCS was not significantly different throughout the entire task. These findings suggest that the motor cortex excitability changes induced by tDCS can improve motor responses, and these effects critically depend on the time interval between stimulation and task performance. PMID- 29330828 TI - Endorsement of the HerniaSurge guidelines by the Australasian Hernia Society. PMID- 29330829 TI - Endorsement of the HerniaSurge guidelines by the Americas Hernia Society. PMID- 29330826 TI - Antibody response to polyomavirus primary infection: high seroprevalence of Merkel cell polyomavirus and lymphoid tissue involvement. AB - Human polyomaviruses (HPyVs) asymptomatically infect the human population establishing latency in the host, and their seroprevalence can reach 90% in healthy adults. Few studies have focused on the pediatric population, and there are no reports regarding the seroprevalence of all the newly isolated HPyVs among Italian children. Therefore, we investigated the frequency of serum antibodies against 12 PyVs in 182 immunocompetent children from Northeast Italy, by means of a multiplex antibody detection system. Additionally, secondary lymphoid tissues were collected to analyze the presence of HPyV DNA sequences using a specific real-time PCRs or PCRs. Almost 100% of subjects were seropositive for at least one PyV. Seropositivity ranged from 3% for antibodies against simian virus 40 (SV40) in children from 0 to 3 years, to 91% for antibodies against WU polyomavirus (WUPyV) and HPyV10 in children from 8 to 17 years. The mean number of PyV for which children were seropositive increased with the increasing of age: 4 standard deviations (SD) 1.8 in the 0-3-year group, 5 (SD 1.9) in the 4-7-year group, and 6 (SD 2.2) in the 8-17-year group. JC polyomavirus (JCPyV) DNA was detected in 1% of the adenoids, WUPyV in 12% of the tonsils, and 28% of the adenoids, and Merkel cell polyomavirus (MCPyV) was present in 6 and 2% of the tonsils and adenoids, respectively. Our study gives new insights on the serological evidence of exposure to PyVs during childhood, and on their possible respiratory route of transmission. PMID- 29330830 TI - Endorsement of the HerniaSurge guidelines by the Afro Middle East Hernia Society. PMID- 29330827 TI - Profiling Online Poker Players: Are Executive Functions Correlated with Poker Ability and Problem Gambling? AB - Poker playing and responsible gambling both entail the use of the executive functions (EF), which are higher-level cognitive abilities. This study investigated if online poker players of different ability showed different performances in their EF and if so, which functions were the most discriminating for their playing ability. Furthermore, it assessed if the EF performance was correlated to the quality of gambling, according to self-reported questionnaires (PGSI, SOGS, GRCS). Three poker experts evaluated anonymized poker hand history files and, then, a trained professional administered an extensive neuropsychological test battery. Data analysis determined which variables of the tests correlated with poker ability and gambling quality scores. The highest correlations between EF test results and poker ability and between EF test results and gambling quality assessment showed that mostly different clusters of executive functions characterize the profile of the strong(er) poker player and those ones of the problem gamblers (PGSI and SOGS) and the one of the cognitions related to gambling (GRCS). Taking into consideration only the variables overlapping between PGSI and SOGS, we found some key predictive factors for a more risky and harmful online poker playing: a lower performance in the emotional intelligence competences (Emotional Quotient inventory Short) and, in particular, those grouped in the Intrapersonal scale (emotional self-awareness, assertiveness, self-regard, independence and self-actualization). PMID- 29330831 TI - Endorsement of the HerniaSurge guidelines by the International Endohernia Society. PMID- 29330832 TI - Endorsement of the HerniaSurge guidelines by the Asia Pacific Hernia Society. PMID- 29330833 TI - Endorsement of the HerniaSurge guidelines by the European Association of Endoscopic Surgery. PMID- 29330834 TI - Endorsement of the Herniasurge guidelines by the European Hernia Society. PMID- 29330837 TI - Computer simulated modeling of healthy and diseased right ventricular and pulmonary circulation. AB - We have previously developed a simulated cardiovascular physiology model for in silico testing and validation of novel closed-loop controllers. To date, a detailed model of the right heart and pulmonary circulation was not needed, as previous controllers were not intended for use in patients with cardiac or pulmonary pathology. With new development of controllers for vasopressors, and looking forward, for combined vasopressor-fluid controllers, modeling of right sided and pulmonary pathology is now relevant to further in-silico validation, so we aimed to expand our existing simulation platform to include these elements. Our hypothesis was that the completed platform could be tuned and stabilized such that the distributions of a randomized sample of simulated patients' baseline characteristics would be similar to reported population values. Our secondary outcomes were to further test the system in representing acute right heart failure and pulmonary artery hypertension. After development and tuning of the right-sided circulation, the model was validated against clinical data from multiple previously published articles. The model was considered 'tuned' when 100% of generated randomized patients converged to stability (steady, physiologically-plausible compartmental volumes, flows, and pressures) and 'valid' when the means for the model data in each health condition were contained within the standard deviations for the published data for the condition. A fully described right heart and pulmonary circulation model including non-linear pressure/volume relationships and pressure dependent flows was created over a 6 month span. The model was successfully tuned such that 100% of simulated patients converged into a steady state within 30 s. Simulation results in the healthy state for central venous volume (3350 +/- 132 ml) pulmonary blood volume (405 +/- 39 ml), pulmonary artery pressures (systolic 20.8 +/- 4.1 mmHg and diastolic 9.4 +/- 1.8 mmHg), left atrial pressure (4.6 +/- 0.8 mmHg), PVR (1.0 +/- 0.2 wood units), and CI (3.8 +/- 0.5 l/min/m2) all met criteria for acceptance of the model, though the standard deviations of LAP and CI were somewhat narrower than published comparators. The simulation results for right ventricular infarction also fell within the published ranges: pulmonary blood volume (727 +/- 102 ml), pulmonary arterial pressures (30 +/- 4 mmHg systolic, 12 +/- 2 mmHg diastolic), left atrial pressure (13 +/- 2 mmHg), PVR (1.6 +/- 0.3 wood units), and CI (2.0 +/- 0.4 l/min/m2) all fell within one standard deviation of the reported population values and vice-versa. In the pulmonary hypertension model, pulmonary blood volume of 615 +/- 90 ml, pulmonary arterial pressures of 80 +/- 14 mmHg systolic, 36 +/- 7 mmHg diastolic, and the left atrial pressure of 11 +/- 2 mmHg all met criteria for acceptance. For CI, the simulated value of 2.8 +/- 0.4 l/min/m2 once again had a narrower spread than most of the published data, but fell inside of the SD of all published data, and the PVR value of 7.5 +/- 1.6 wood units fell in the middle of the four published studies. The right ventricular and pulmonary circulation simulation appears to be a reasonable approximation of the right-sided circulation for healthy physiology as well as the pathologic conditions tested. PMID- 29330836 TI - Pathogenesis of non-alcoholic fatty liver disease mediated by YAP. AB - OBJECTIVE: This study aimed to investigate the mechanism of the interaction between Yes-associated protein (YAP) and transforming growth factor-beta (TGF beta)/Smad signaling pathways in the development of non-alcoholic fatty liver disease (NAFLD). METHODS: Serum samples of monkeys with biopsy-proven NAFLD and healthy normal monkeys were used to measure fasting plasma glucose (FPG), low density lipoprotein (LDL), high-density lipoprotein (HDL), triglyceride (TG) and albumin (ALB) with the BECKMAN CX5 PRO. Hematoxylin-eosin staining (H&E) was used for pathologic analysis, Masson trichrome staining was used to assess for fibrosis staging, and Oil Red O staining was used to detect lipid droplet deposition. According to an NAFLD activity score of < 4 points and > 4 points, the samples were divided into groups: the steatosis group and fibrosing NASH group. Furthermore, monkeys with a fibrosis stage < 2 were assigned to the mild fibrosis group, while monkeys with fibrosis stage >= 2 were assigned to the significant fibrosis group. Moreover, the fibrosis stage was subdivided as follows: stages 1a, 1c and 2-3. Immunohistochemistry and real-time quantitative PCR were used to quantify protein and gene expression, respectively. RESULTS: In the present study, 54 monkeys with NAFLD and 23 normal monkeys were recruited. Serum FPG and TG levels were higher in fibrosing NASH monkeys compared with simple steatosis and normal monkeys, and differences between simple steatosis and normal monkeys were not statistically significant (p > 0.05). YAP increased in NAFLD, which mainly localized in the nuclei of hepatocytes, perivascular cells and bile duct cells; the accumulation of YAP correlated with the severity of hepatocyte injury. Compared with normal monkeys, the expression of TGF-beta, alpha-smooth muscle actin (alpha-SMA), Drosophila mothers against decapentaplegic protein 3 (Smad3) and connective tissue growth factor (CTGF) in the liver of simple steatosis monkeys significantly increased (p < 0.01). Compared with simple steatosis monkeys, the expression of TGF-beta, alpha-SMA, Smad3 and CTGF in fibrosing NASH significantly increased (p < 0.01). However, the expression of Drosophila mothers against decapentaplegic protein 7 (Smad7) in the liver of fibrosing NASH monkeys significantly decreased (p < 0.01). With the severity of liver fibrosis, the expression of TGF-beta, alpha-SMA, Smad3 and CTGF gradually increased, and the difference was statistically significant (p < 0.01). However, there was no significant difference in the expression of Smad3 between fibrosis stage 1a and 1c. Compared with normal monkeys, the expression of Smad7 in the liver of monkeys with fibrosis significantly decreased (p < 0.01), but was significantly higher at fibrosis stage 1c than at fibrosis stage 1a and 2. CONCLUSION: The YAP and TGF-beta signaling pathways and the interaction between them promote the development and progression of NAFLD. PMID- 29330838 TI - The potential impact of multidimesional geriatric assessment in the social security system. AB - AIM: To evaluate the efficacy of multidimensional geriatric assessment (MGA/CGA) in patients over 65 years old in predicting the release of the accompaniment allowance (AA) indemnity by a Local Medico-Legal Committee (MLC-NHS) and by the National Institute of Social Security Committee (MLC-INPS). METHODS: In a longitudinal observational study, 200 Italian elder citizens requesting AA were first evaluated by MLC-NHS and later by MLC-INPS. Only MLC-INPS performed a MGA/CGA (including SPMSQ, Barthel Index, GDS-SF, and CIRS). This report was written according to the STROBE guidelines. RESULTS: The data analysis was performed on January 2016. The evaluation by the MLC-NHS and by the MLC-INPS was in agreement in 66% of cases. In the 28%, the AA benefit was recognized by the MLC-NHS, but not by the MLC-INPS. By the multivariate analysis, the best predictors of the AA release, by the MLC-NHS, were represented by gender and the Barthel Index score. The presence of carcinoma, the Barthel Index score, and the SPMQ score were the best predictors for the AA release by MLC-INPS. CONCLUSIONS: MGA/CGA could be useful in saving financial resources reducing the risk of incorrect indemnity release. It can improve the accuracy of the impairment assessment in social security system. PMID- 29330840 TI - Clinical assessment of class II resin-based composites versus preformed metal crowns performed on primary molars in patients at high risk of caries. AB - AIM: To compare class II resin composite with preformed metal crowns (PMC) in the treatment of proximal dentinal caries in high caries-risk patients. METHODS: The charts (270) of paediatric patients with proximal caries of their primary molars were reviewed. Success or failure of a procedure was assessed using the dental notes. Survival analysis was used to calculate the mean survival time (MST) for both procedures. The influence of variables on the mean survival time was investigated. RESULTS: A total of 593 class II resin composites and 243 PMCs were placed in patients ranging between 4-13 years of age. The failure percentage of class II resin composites was 22.6% with the majority having been due to recurrent caries, while the failure percentage of PMCs was 15.2% with the majority due to loss of the crown. There was no significant difference between the MST of class II resin composites and PMCs, 41.3 and 45.6 months respectively (p value = 0.06). In class II resin composites, mesial restorations were associated with lower MST compared to distal restorations (p-value < 0.001). CONCLUSIONS: The MST of resin composites and PMCs were comparable when performed on high caries-risk patients. PMID- 29330841 TI - Delayed replantation of an avulsed immature permanent incisor and apexification using a novel fast-setting calcium silicate cement containing fluoride: a 3-year follow-up case report. AB - BACKGROUND: Traumatic tooth avulsion requires an urgent intervention to replant the tooth. Prolonged post-injury dry extra-oral conditions worsen the prognosis and increase the risk of root resorption. Fluoride has the potential to delay replacement resorption. Calcium silicate cements (CSC) are used to seal the root canal system and to stimulate periapical regeneration in immature open apex teeth (apexification). This report suggests the application of a novel fast-setting CSC with fluoride for apexification in an attempt to hinder root resorption. CASE REPORT: A delayed replantation of an avulsed open apex permanent central incisor after 75 h of storage in a dry condition in a 6-year-old girl. Standard treatment guidelines for avulsed immature permanent teeth were followed. After tooth replantation a novel fast-setting, CSC containing fluoride was used for apexification. FOLLOW-UP: The radiographic and clinical evaluations over a period of 3 years demonstrated periodontal bone healing without root resorption, mobility, and ankylosis and an acceptable periapical tissue tolerance to the novel CSC. However, a longer follow-up period is needed. CONCLUSIONS: Delayed replantation of the avulsed open apex permanent incisor after 75 h of storage under dry conditions and apexification with a novel fast-setting CSC showed a successful outcome after 3 years. Novel CSC with fluoride demonstrated an acceptable biocompatibility and tissue tolerance. PMID- 29330843 TI - Clinical guideline and recommendations on pre-operative exercise training in patients awaiting major non-cardiac surgery. AB - Despite calls for the routine implementation of pre-operative exercise programmes to optimise patient fitness before elective major surgery, there is no practical guidance for providing safe and effective exercise in this specific context. The following clinical guideline was developed following a review of the evidence on the effects of pre-operative exercise interventions. We developed a series of best-practice and, where possible, evidence-based statements to advise on patient care with respect to exercise training in the peri-operative period. These statements cover: patient selection for exercise training in surgical patients; integration of exercise training into multi-modal prehabilitation programmes; and advice on exercise prescription factors and follow-up. Although we acknowledge that further research is needed to identify the optimal exercise prescription in different clinical scenarios, we urge peri-operative teams to make use of these recommendations. PMID- 29330842 TI - Self-perceived long-term transfer of learning after postpartum hemorrhage simulation training. AB - OBJECTIVE: To explore long-term transfer (application of acquired knowledge and skills on the job) after postpartum hemorrhage simulation training based on either instructional design (ID) principles or conventional best practice. METHODS: In this qualitative study, semi-structured interviews with obstetrics and gynecology healthcare practitioners were conducted between August 7 and September 26, 2015, in Recife, Brazil. The participants were randomly selected from each of two postpartum hemorrhage simulations attended 2 years earlier (one ID and one conventional best practice). Thematic analysis was used to explore (1) residents' perceptions of long-term transfer of learning, (2) ID elements influencing the perceived long-term transfer, and (3) differences in the participants' perceptions according to the type of simulation attended. RESULTS: There were 12 interview participants. After either simulation format, residents perceived long-term transfer effects. Training design factors influencing transfer were, in their opinion, related to trainees' characteristics, simulation design, and workplace environment. Trainees who participated in the ID-based simulation perceived better communication skills and better overall situational awareness: "I didn't do that before." CONCLUSION: All residents perceived long term transfer after simulation training for postpartum hemorrhage. Those who attended the ID format additionally perceived improvements in communication skills and situational awareness, which are fundamental factors in the management of postpartum hemorrhage. PMID- 29330839 TI - Peripheral Blood Brain-Derived Neurotrophic Factor as a Biomarker of Alzheimer's Disease: Are There Methodological Biases? AB - Mounting evidence that alterations in brain-derived neurotrophic factor (BDNF) levels and signaling may be involved in the etiopathogenesis of Alzheimer's disease (AD) has suggested that its blood levels could be used as a biomarker of the disease. However, higher, lower, or unchanged circulating BDNF levels have all been described in AD patients compared to healthy controls. Although the reasons for such different findings are unclear, methodological issues are likely to be involved. The heterogeneity of participant recruitment criteria and the lack of control of variables that influence circulating BDNF levels regardless of dementia (depressive symptoms, medications, lifestyle, lack of overlap between serum and plasma, and experimental aspects) are likely to bias result and prevent study comparability. The present work reviews a broad panel of factors, whose close control could help reduce the inconsistency of study findings, and offers practical advice on their management. Research directed at elucidating the weight of each of these variables and at standardizing analytical methodologies is urgently needed. PMID- 29330844 TI - Bradykinin mediates the association of collecting duct cells to form migratory colonies, through B2 receptor activation. AB - It is known that bradykinin (BK) B2 receptor (B2R) is expressed in the collecting duct (CD) cells of the newborn rat kidney, but little is known about its role during early postnatal life. Therefore, we hypothesize that BK could participate in the mechanisms that mediate CD formation during the postnatal renal development. Performing primary cultures, combined with biochemical, immunocytochemical, and time-lapse analysis, we studied the role of BK in CD cell behavior isolated from renal papilla of neonatal rats. A reverse relationship was observed between B2R expression and the degree of CD epithelial cell sheet maturation. BK stimulation induced CD cell association upon B2R activation. The lack of B2R expression in cells showing mature adherens junctions suggested that BK is mostly involved in early adhesive events, thus favoring the initial formation of CD during development. Time-lapse analysis revealed that BK induced a high protrusive activity of CD cells, denoted by ruffle formation and lamellipodia extension. PI3K was involved in the BK-induced CD cell-cell association and the acquisition of the migratory phenotype since, when inhibited, membrane ruffles, and filopodia between cells diminished. Results indicate that the actions of BK mediated by PI3K activation were due to the downstream Akt and Rac pathways. This study, performed with CD cells that were not genetically manipulated, provides new experimental evidence supporting a novel role of BK in rat renal CD organization. As B2R blockade results in abnormal tubular differentiation, our results contribute to better understanding the etiology of human congenital renal malformation and diseases. PMID- 29330846 TI - Oral propranolol for infantile haemangioma may be associated with transient gross motor delay. PMID- 29330847 TI - Interchangeability of Generic Drugs: A Nonparametric Pharmacokinetic Model of Gabapentin Generic Drugs. AB - Substitution by generic drugs is allowed when bioequivalence to the originator drug has been established. However, it is known that similarity in exposure may not be achieved at every occasion for all individual patients when switching between formulations. The ultimate aim of our research is to investigate if pharmacokinetic subpopulations exist when subjects are exposed to bioequivalent formulations. For that purpose, we developed a pharmacokinetic model for gabapentin, based on data from a previously conducted bioavailability study comparing gabapentin exposure following administration of the gabapentin originator and three generic gabapentin formulations in healthy subjects. Both internal and external validation confirmed that the optimal model for description of the gabapentin pharmacokinetics in this comparative bioavailability study was a two-compartment model with absorption constant, an absorption lag time, and clearance adjusted for renal function, in which each model parameter was separately estimated per administered formulation. PMID- 29330848 TI - Cultured allogeneic fibroblast injection vs. fibroblasts cultured on amniotic membrane scaffold for dystrophic epidermolysis bullosa treatment. AB - BACKGROUND: Different methods of fibroblast application have been examined to treat recessive dystrophic epidermolysis bullosa (RDEB). OBJECTIVES: To compare the effects of intradermal injection of cultured allogeneic fibroblasts in healing RDEB wounds with those of fibroblasts seeded on amniotic membrane scaffolds (FAMS) or standard wound care (SWC) with Vaseline(r) gauze as controls. METHODS: Seven patients were recruited, and seven wounds were assessed in each patient: three wounds were treated with injection of intradermal fibroblasts, three were treated with FAMS and one was dressed with SWC. Changes in wound size were assessed after 2 and 12 weeks of treatment. Qualitative wound scores (QWS) were used to assess wound severity. Additionally, biopsies and antigen mapping were performed to detect type VII collagen in the dermoepidermal junction. RESULTS: In both treated areas, the QWS and wound size were significantly decreased (P < 0.001), whereas there were no changes in the control group (P = 0.29). After 2 and 12 weeks of treatment, the wound size was significantly decreased in wounds that were treated with fibroblast injection compared with those treated with FAMS (P < 0.001); but no significant changes were found in the control group. CONCLUSIONS: Fibroblast injection has been shown to promote healing of RDEB wounds and is superior to FAMS or the control treatment. PMID- 29330849 TI - Expression of YAP and TAZ in molluscum contagiosum virus infected skin. PMID- 29330850 TI - How I Do It: Examining the value of an otology multidisciplinary team meeting. PMID- 29330845 TI - The association between smoking and cancer incidence in BRCA1 and BRCA2 mutation carriers. AB - Tobacco smoke is an established carcinogen, but the association between tobacco smoking and cancer risk in BRCA mutation carriers is not clear. The aim of this study was to evaluate prospectively the association between tobacco smoking and cancer incidence in a cohort of BRCA1 and BRCA2 mutation carriers. The study population consisted of unaffected BRCA mutation carriers. Information on lifestyle including smoking histories, reproductive factors, and past medical histories was obtained through questionnaires. Incident cancers were updated biennially via follow-up questionnaires. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using time-dependent Cox regression models. There were 700 incident cancers diagnosed over 26,711 person-years of follow-up. The most frequent cancers seen in BRCA mutation carriers were breast (n = 428; 61%) and ovarian (n = 109; 15%) cancer. Compared to nonsmokers, (ever) smoking was associated with a modest increased risk of all cancers combined (HR = 1.17; 95%CI 1.01-1.37). Women in the highest group of total pack-years (4.3-9.8) had an increased risk of developing any cancer (HR = 1.27; 95%CI 1.04-1.56), breast cancer (HR = 1.33, 95%CI 1.02-1.75), and ovarian cancer (HR = 1.68; 95%CI 1.06 2.67) compared to never smokers. The associations between tobacco smoking and cancer did not differ by BRCA mutation type or by age at diagnosis. This prospective study suggests that tobacco smoking is associated with a modest increase in the risks of breast and ovarian cancer among women with BRCA1 or BRCA2 mutation. PMID- 29330851 TI - A case of xeroderma pigmentosum complementation group C with diverse clinical features. PMID- 29330852 TI - Characteristics and intestinal immunomodulating activities of water-soluble pectic polysaccharides from Chenpi with different storage periods. AB - BACKGROUND: The traditional view considers that Chenpi (dried citrus peel) stored over the long-term has better health efficacies compared to fresh Chenpi, although the detailed mechanism responsible for this remains obscure. RESULTS: The three water-soluble pectic polysaccharides (CPP1, CPP5 and CPP10) were obtained from 1-, 5- and 10-year Chenpi, respectively, and their physicochemical characteristics and intestinal immunomodulating activities were investigated and compared. The results obtained showed that CPP5 and CPP10 demonstrated a lower dynamic viscosity and degree of methylesterification, as well as a higher molecular heterogeneity, compared to CPP1. Monosaccharide composition analysis indicated that CPP1 was composed of arabinose, galacturonic acid and galactose, and a small amount of rhamnose; however, CPP5 and CPP10 consisted of arabinose, galacturonic acid, galactose, glucose and xylose, and a small amount of rhamnose. With the extension of storage period of Chenpi, the content of soluble conjugate phenolic acids increased in the pectic polysaccharide. Furthermore, it was confirmed that the pectic polysaccharides extracted from the 5-year and 10-year Chenpi could significantly enhance the proliferation of bone marrow cells via activating the Peyer's patch cells in vitro. CONCLUSION: The present study demonstrates the differences in the pectic polysaccharides from Chenpi with different storage periods and also confirms that the pectic polysaccharides extracted from Chenpi stored over the long-term had more significant intestinal activities compared to that obtained from the fresh Chenpi. This phenomenon might partly explain why the Chenpi stored over the long-term has better healthcare effects. (c) 2018 Society of Chemical Industry. PMID- 29330853 TI - Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) vs. facemask breathing pre-oxygenation for rapid sequence induction in adults: a prospective randomised non-blinded clinical trial. AB - Transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) can prolong apnoea time in adults. Therefore, THRIVE used for pre-oxygenation in rapid sequence induction of anaesthesia could extend safe apnoea time during prolonged laryngoscopy and intubation. In this randomised controlled trial, we compared the lowest peripheral oxygen saturation (SpO2 ) during intubation when pre-oxygenating with either traditional facemask or THRIVE. Eighty adult patients, undergoing rapid sequence induction of anaesthesia for emergency surgery, were randomly allocated to pre-oxygenation with 100% oxygen with facemask or with THRIVE. Median (IQR [range]) lowest SpO2 until 1 min after intubation was 99% (97-100 [70-100]%) for the facemask group vs. 99% (99-100 [96 100]%) for the THRIVE group (p = 0.097). Five patients (12.5%) desaturated below 93% when pre-oxygenated with the facemask vs. none in the THRIVE group (p = 0.019). There were no differences in intubation time or apnoea time between the groups. Median intubation time was 51 (34-66 [22-261]) s in the facemask group vs. 48 (38-63 [10-146]) s in the THRIVE group (p = 0.99). Median apnoea time was 109 (86-142 [37-291]) s and 116 (92-146 [63-249]) s when using facemask and THRIVE, respectively (p = 0.49). No signs of regurgitation of gastric content were detected. The data on desaturation indicate potential benefits of oxygenation with THRIVE for rapid sequence induction compared with facemask pre oxygenation. PMID- 29330854 TI - Combined spinal-epidural vs. spinal anaesthesia for caesarean section: meta analysis and trial-sequential analysis. AB - Combined spinal-epidural and single-shot spinal anaesthesia are both used for caesarean section. It has been claimed in individual trials that combined spinal epidural is associated with higher sensory spread and greater cardiovascular stability. We set out to gather all available evidence. We performed: a systematic literature search to identify randomised controlled trials comparing combined spinal-epidural with spinal anaesthesia for caesarean section: conventional meta-analysis; trial-sequential analysis; and assessment of trial quality using the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system. Fifteen trials with high heterogeneity, including 1015 patients, were analysed. There was no significant difference between combined spinal-epidural and spinal anaesthesia for our primary outcomes maximum sensory height and vasopressor use (mg ephedrine equivalents). However, trial-sequential analysis suggested insufficient data and the GRADE scores showed 'very low' quality of evidence for these outcomes. The secondary outcomes hypotension, time for sensory block to recede to the level of T10, and the combined outcome of nausea and vomiting, did not differ significantly between the interventions. The block times were statistically significantly longer for combined spinal-epidural in individual trials, but only one trial showed a clinically meaningful difference (11 min). Based on this analysis, and taking into consideration all comparisons irrespective of whether drugs had been applied via the epidural route, there is not enough evidence to postulate any advantage compared with the spinal technique. Future analyses and studies need to examine the potential advantages of the combined spinal-epidural technique by using the epidural route intra- and/or postoperatively. PMID- 29330855 TI - Getting Innovative Therapies Faster to Patients at the Right Dose: Impact of Quantitative Pharmacology Towards First Registration and Expanding Therapeutic Use. AB - Quantitative pharmacology (QP) applications in translational medicine, drug development, and therapeutic use were crowd-sourced by the ASCPT Impact and Influence initiative. Highlighted QP case studies demonstrated faster access to innovative therapies for patients through 1) rational dose selection for pivotal trials; 2) reduced trial-burden for vulnerable populations; or 3) simplified posology. Critical success factors were proactive stakeholder engagement, alignment on the value of model-informed approaches, and utilizing foundational clinical pharmacology understanding of the therapy. PMID- 29330857 TI - Reduction of hyaluronan and increased expression of HYBID (alias CEMIP and KIAA1199) correlate with clinical symptoms in photoaged skin. AB - BACKGROUND: Hyaluronan (HA) metabolism in skin fibroblasts is mediated by HYBID (hyaluronan binding protein involved in hyaluronan depolymerization, alias CEMIP and KIAA1199) and the HA synthases HAS1 and HAS2. However, photoageing-dependent changes in HA and their molecular mechanisms, and the relationship between HA metabolism and clinical symptoms in photoaged skin remain elusive. OBJECTIVES: We examined the amount, size and tissue distribution of HA and expression levels of HYBID, HAS1 and HAS2 in photoaged skin, and analysed their relationship with the degree of photoageing. METHODS: Photoageing-dependent changes of HA were investigated by studying skin biopsies isolated from photoprotected and photoexposed areas of the same donors, and the relationships between HA and photoageing symptoms such as skin wrinkling and sagging were examined. RESULTS: Skin biopsy specimens showed that the amount and size of HA are decreased in photoexposed skin compared with photoprotected skin, and this was accompanied by increased expression of HYBID and decreased expression of HAS1 and HAS2. Histologically, HA staining in the papillary dermis was decreased in photoexposed skin, showing reverse correlation with HYBID expression. HYBID expression in the photoexposed skin directly correlated with skin roughness and sagging parameters, and the reduced HA staining in the papillary dermis in the photoexposed skin positively correlated with these symptoms. CONCLUSIONS: These data demonstrate that imbalance between HYBID-mediated HA degradation and HAS-mediated HA synthesis may contribute to enhanced HA catabolism in photoaged skin, and suggest that HYBID-mediated HA reduction in the papillary dermis is related to skin wrinkling and sagging of photoaged skin. PMID- 29330856 TI - Reproductive history, breast-feeding and risk of triple negative breast cancer: The Breast Cancer Etiology in Minorities (BEM) study. AB - Few risk factors have been identified for triple negative breast cancer (TNBC) which lacks expression of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2). This more aggressive subtype disproportionately affects some racial/ethnic minorities and is associated with lower survival. We pooled data from three population-based studies (558 TNBC and 5,111 controls) and examined associations of TNBC risk with reproductive history and breast-feeding. We estimated odds ratios (ORs) and 95% confidence intervals (CIs) using multivariable logistic regression. For younger women, aged <50 years, TNBC risk was increased two-fold for parous women who never breast-fed compared to nulliparous women (OR = 2.02, 95% CI = 1.12-3.63). For younger parous women, longer duration of lifetime breast-feeding was associated with a borderline reduced risk (>=24 vs. 0 months: OR = 0.52, 95% CI = 0.26-1.04, Ptrend = 0.06). Considering the joint effect of parity and breast-feeding, risk was increased two fold for women with >=3 full-term pregnancies (FTPs) and no or short-term (<12 months) breast-feeding compared to women with 1-2 FTPs and breast-feeding >=12 months (OR = 2.56, 95% CI = 1.22-5.35). None of these associations were observed among older women (>=50 years). Differences in reproductive patterns possibly contribute to the ethnic differences in TNBC incidence. Among controls aged <50 years, the prevalence of no or short-term breast-feeding and >=3 FTPs was highest for Hispanics (22%), followed by African Americans (18%), Asian Americans (15%) and non-Hispanic whites (6%). Breast-feeding is a modifiable behavioral factor that may lower TNBC risk and mitigate the effect of FTPs in women under age 50 years. PMID- 29330858 TI - Long-term outcomes of cochlear implantation in patients with high-frequency hearing loss. AB - OBJECTIVE: To demonstrate the long-term benefits of implantation in patients with high-frequency sensorineural hearing loss, this report provides 5-year follow-up on a group of implant recipients who were subjects of the CochlearTM Nucleus(r) HybridTM L24 Implant System pivotal clinical study. METHODS: The results of three related clinical studies were compiled to provide outcome data after 1, 3, and 5 years of implant use in a group of subjects who presented with preoperative high frequency hearing loss and were implanted with a Nucleus Hybrid L24 (Cochlear Ltd., Sydney, Australia) cochlear implant. A subset of the 50 adult subjects (N = 32) who participated in the Hybrid L24 pivotal Investigational Device Exemption (IDE) completed comprehensive evaluations at 12 months postactivation, 3 years postactivation, and then as part of a postapproval study at 5 years postactivation. Testing included audiometric, speech perception, and subjective satisfaction measures. RESULTS: Mean unilateral speech perception performance was significantly improved at all postoperative intervals compared to preoperative best-aided results and has remained stable to 5 years postactivation. Ninety-four percent of subjects had measurable hearing, and 72% continued to use electric acoustic stimulation in the implanted ear after 5 years of implant use. Subjective satisfaction results support objective performance improvements. CONCLUSION: Results demonstrate long-term success of patients with high-frequency hearing loss following Hybrid L24 (Cochlear) cochlear implantation. Benefits include speech perception abilities significantly better than those in the preoperative best-aided condition, with additional benefit in those using electric-acoustic stimulation in the implanted ear. LEVEL OF EVIDENCE: 2b. Laryngoscope, 1939-1945, 2018. PMID- 29330859 TI - Differential effects of phototherapy, adalimumab and betamethasone-calcipotriol on effector and regulatory T cells in psoriasis. AB - BACKGROUND: Psoriasis is a chronic T-cell-mediated skin disease with marked social and economic burdens. Current treatments are unsatisfactory, with unpredictable remission times and incompletely understood modes of action. Recent advances in our understanding of the pathogenesis of psoriasis have identified the imbalance between CD4+ T effector cells, particularly the T helper (Th)17 subset, and regulatory T cells (Tregs) as key to the development of psoriatic lesions, and therefore a novel therapeutic target. OBJECTIVES: To quantify in patients the effects of three commonly used psoriasis treatment modalities on the Th1, Th2, Th17 and Treg subsets, and to test whether any change correlates with clinical response. METHODS: Flow cytometry was used to enumerate Th1, Th2, Th17 and Treg subsets in blood and skin of patients with psoriasis before and after receiving any of the following treatments: narrowband ultraviolet B (NB-UVB), adalimumab and topical betamethasone-calcipotriol combination (Dovobet(r) ) RESULTS: All patients responded clinically to the treatments. NB-UVB significantly increased the numbers of circulating and skin Tregs, while, by contrast, adalimumab reduced Th17 cells in these compartments, and Dovobet had dual effects by both increasing Tregs and reducing Th17 cells. CONCLUSIONS: The differential effects reported here for the above-mentioned treatment modalities could be exploited to optimize or design therapeutic strategies to overcome the inflammatory drivers more effectively and restore the Th17-Treg balance in psoriasis. PMID- 29330860 TI - Sudden death in sport and riding horses during and immediately after exercise: A case series. AB - BACKGROUND: Sudden death affects the health of horses, the safety of riders and the public perception of animal welfare during equestrian events. OBJECTIVES: To describe the signalment, clinical history, sudden death episode, rider injuries and causes of sudden death during exercise or closely thereafter in sport and pleasure riding horses. STUDY DESIGN: Retrospective case series based on an online questionnaire. METHODS: An online questionnaire was distributed to the veterinary and equestrian community. Connections of animals reported in the press to have died suddenly were sent the survey. Responses were analysed to obtain information. RESULTS: Fifty-seven cases met inclusion criteria with enough information to be analysed. The most common discipline was eventing (n = 23, 40.4%), and the most common breed involved was Thoroughbred (n = 23, 40.4%). Forty-one (71.9%) horses collapsed during exercise, and 16 (28.1%) shortly thereafter. Twenty-four (42.1%) horses died during or near the time of competition and 33 (57.9%) during or near the time of training or a pleasure ride. In 16 (28.1%) horses, the cause of death was known or strongly suspected based on a post-mortem result, and a cardiovascular origin was reported in 13 of these 16 cases. Riders were injured in 13 (22.8%) cases, and injuries to their extremities were the most frequent. MAIN LIMITATIONS: There is potential for misdiagnosis and recall and selection bias, and in the absence of data on the total number of horses engaged in equestrian sports and riding, prevalence cannot be calculated. CONCLUSIONS: Sudden death occurred in many types of equestrian sports and in riding horses. Death outside competition was more common suggesting that registries based on reports from official veterinarians underestimate the magnitude of this problem. Rider injuries were not uncommon when ridden horses collapsed and died. A definitive diagnosis for the cause of death was not commonly achieved and cardiovascular origin was the most common where a diagnosis was proposed by survey respondents. PMID- 29330861 TI - Validity evidence as a key marker of quality of technical skill assessment in OTL HNS. AB - OBJECTIVE: Quality monitoring of assessment practices should be a priority in all residency programs. Validity evidence is one of the main hallmarks of assessment quality and should be collected to support the interpretation and use of assessment data. Our objective was to identify, synthesize, and present the validity evidence reported supporting different technical skill assessment tools in otolaryngology-head and neck surgery (OTL-HNS). METHODS: We performed a secondary analysis of data generated through a systematic review of all published tools for assessing technical skills in OTL-HNS (n = 16). For each tool, we coded validity evidence according to the five types of evidence described by the American Educational Research Association's interpretation of Messick's validity framework. Descriptive statistical analyses were conducted. RESULTS: All 16 tools included in our analysis were supported by internal structure and relationship to variables validity evidence. Eleven articles presented evidence supporting content. Response process was discussed only in one article, and no study reported on evidence exploring consequences. CONCLUSION: We present the validity evidence reported for 16 rater-based tools that could be used for work-based assessment of OTL-HNS residents in the operating room. The articles included in our review were consistently deficient in evidence for response process and consequences. Rater-based assessment tools that support high-stakes decisions that impact the learner and programs should include several sources of validity evidence. Thus, use of any assessment should be done with careful consideration of the context-specific validity evidence supporting score interpretation, and we encourage deliberate continual assessment quality-monitoring. LEVEL OF EVIDENCE: NA. Laryngoscope, 128:2296-2300, 2018. PMID- 29330862 TI - Dermatomyositis: Histopathologic findings of parakeratosis and dermal edema revisited. AB - The cutaneous manifestations of dermatomyositis range from classical in the case of heliotrope rash and Gottron papules to less common papulosquamous and edematous/vesiculobullous lesions; histopathologic descriptions are dominated by interface dermatitis. We present a case of dermatomyositis with a combination of common and rare skin findings, both clinically and histologically. Increased awareness of papulosquamous and edematous lesions of dermatomyositis can help direct patient care. Although uncommon, confluent parakeratosis and dermal edema can be manifestations of dermatomyositis. PMID- 29330864 TI - Allergy-Committed to progress in allergy and immunology. PMID- 29330863 TI - Hyoepiglottic ligament collagen and elastin fiber composition and changes associated with aging. AB - OBJECTIVE: The epiglottis may contribute to upper airway obstruction in approximately 10% of patients with obstructive sleep apnea. Clinical experience indicates that older patients may be more likely to have epiglottis-related obstruction. This study was designed to examine tissue characteristics of the hyoepiglottic ligament as a possible factor in epiglottis-related obstruction based on previous research suggesting that older adults have fewer collagen, elastin, and muscle fibers in the hyoepiglottic ligament. METHODS: This is a cross-sectional study of 25 human cadaver hyoepiglottic ligaments. Specimens were stained using Masson's trichrome and Picrosirius red for collagen fibers and with Verhoeff-Van Gieson for elastin fibers. Percentage of collagen and elastin fiber staining for each specimen was calculated and averaged over three regions of each ligament section. Regression analysis was used to determine the association between age, smoking history, and collagen and elastin composition of the hyoepiglottic ligament. RESULTS: The average age of the specimens was 68.4 +/- 15.1 years (range 30-90 years). Increasing age was associated with a lower percentage of collagen and elastin fibers. When accounting for tobacco use, each 1-year increase in age was associated with a 0.53% decrease in Masson's trichrome staining (P = 0.004), a 0.35% decrease in Picrosirius red staining (P = 0.023), and a 0.33% decrease in Verhoeff-Van Gieson staining (P = 0.008). CONCLUSION: Increasing age is associated with decreases in the collagen and elastin content of the hyoepiglottic ligament. LEVEL OF EVIDENCE: NA. Laryngoscope, 128:1245 1248, 2018. PMID- 29330865 TI - A case of radiation-induced osteosarcoma of the skull presenting as a cutaneous epidermotropic tumor with a short latent period. AB - Radiation-induced sarcoma (RIS) is an unusual but well documented tumor. The frequency of RIS of the head and neck region has been reported as 0.143%. In the literature the median interval between irradiation and development of sarcoma is 11 years. Cases of RIS with a short latent period, that is, less than 4 years are rare. We report a case of a 34-year-old female who developed an osteosarcoma of the scalp, over a previous craniotomy scar, 3 years after excision of a frontal anaplastic oligodendroglioma which had been followed by a course of 6 weeks radiotherapy (58 Gy) and 6 cycles of temozolomide. The histological features were those of a high-grade osteosarcoma with epidermotropism of tumor cells. Lymph nodes were partially replaced by high-grade metastatic osteosarcoma, with extra nodal lymphatic tumor thrombi. To our knowledge the only other case report of post-radiation osteosarcoma with a short latency period was a case of osteosarcoma in the craniofacial bone 3 years after radiotherapy for maxillary squamous cell carcinoma. The histological finding of prominent replacement of the epidermis by osteosarcoma has not been reported before. PMID- 29330866 TI - Enteric viruses' dissemination in a private reserve of natural heritage. AB - : This study aimed to assess anthropogenic impact of surrounding population in the Private Reserve of Natural Heritage at Pantanal, the world's largest freshwater wetland ecosystem located in the centre of South America. Viral aetiological agents of acute gastroenteritis as rotavirus A (RVA), noroviruses, human adenoviruses, klassevirus and of hepatitis, as hepatitis A virus, were investigated in different aquatic matrices. Annual collection campaigns were carried out from 2009 to 2012, alternating dry and rainy seasons. Viral particles present in the samples were concentrated by the adsorption-elution method, with negatively charged membranes, and detected by qualitative and quantitative PCR. From a total of 43 samples at least one virus was detected in 65% (28) of them. Viruses were detected in all matrices with concentrations ranging from 2 * 102 to 8.3 * 104 genome copies per litre. A significant higher RVA frequency was observed in the dry season. Our data revealing dissemination of human enteric viruses in water matrices both inside and outside the reserve could be useful to trace faecal contamination in the environment and to minimize the risk of infection by exposure of susceptible individuals. SIGNIFICANCE AND IMPACT OF THE STUDY: This study is part of a collaborative project designed to investigate the environmental and health conditions of the Private Reserve of Natural Heritage at Pantanal, the largest seasonally flooded wetland in the world. The project aimed to promote health and quality of human and wildlife extending technical scientific knowledge about pathogens present in the region. By assessing the occurrence of human enteric viruses in different water matrices we demonstrated the anthropogenic impact of surrounding population and pointed out the potential risk of infection by exposure of susceptible individuals. PMID- 29330868 TI - Insulin resistance and the increased risk for smell dysfunction in US adults. AB - OBJECTIVE: Over 24% of older American adults (approximately 14 million) are estimated to have reduced olfactory sensitivity. Previous studies have provided evidence that patients with diabetes mellitus (DM) or its complications are at increased risk of olfactory dysfunction. We therefore investigated whether smell dysfunction was associated with DM-related biomarkers, including fasting blood glucose, glycohemoglobin, serum insulin, and homeostasis model assessment of insulin sensitivity (HOMA-IR), in older US adults. METHODS: Data from 9,678 older adults who had participated in the 2013 to 2014 National Health and Nutrition Examination Survey were available for this study. We used the eight-item, self administered scratch-and-sniff smell test (Sensonics, Inc., Haddon Heights, NJ) for assessing smell. Smell dysfunction was defined as the condition with an odor identification score of <= 5. RESULTS: Of the 978 participants, 20% of older adults (n = 193) were defined as having smell dysfunction. After adjustment for potential confounding variables, participants in the highest HOMA-IR quintile had approximately two-fold increased odds (odds ratio = 2.25; 95% confidence interval: 1.25-4.05) of smell dysfunction compared with those in the lowest HOMA IR quintile. In contrast, the odds of smell dysfunction were not associated with the quintiles for fasting blood glucose, glycohemoglobin (HbA1c), or serum insulin levels. CONCLUSION: We found a significant association between smell dysfunction and severe insulin resistance in older US adults. Our data suggests that insulin resistance may be mechanistically linked to loss of smell function. LEVEL OF EVIDENCE: 4. Laryngoscope, 128:1992-1996, 2018. PMID- 29330867 TI - Preferential cholinergic excitation of corticopontine neurons. AB - KEY POINTS: Phasic activation of M1 muscarinic receptors generates transient inhibition followed by longer lasting excitation in neocortical pyramidal neurons. Corticopontine neurons in the mouse prefrontal cortex exhibit weaker cholinergic inhibition, but more robust and longer lasting excitation, than neighbouring callosal projection neurons. Optogenetic release of endogenous ACh in response to single flashes of light (5 ms) preferentially enhances the excitability of corticopontine neurons for many tens of seconds. Cholinergic excitation of corticopontine neurons involves at least three ionic mechanisms: suppression of KV 7 currents, activation of the calcium-dependent non-specific cation conductance underlying afterdepolarizations, and activation of what appears to be a calcium-sensitive but calcium-permeable non-specific cation conductance. Preferential cholinergic excitation of prefrontal corticopontine neurons may facilitate top-down attentional processes and behaviours. ABSTRACT: Pyramidal neurons in layer 5 of the neocortex comprise two broad classes of projection neurons: corticofugal neurons, including corticopontine (CPn) neurons, and intratelencephalic neurons, including commissural/callosal (COM) neurons. These non-overlapping neuron subpopulations represent discrete cortical output channels contributing to perception, decision making and behaviour. CPn and COM neurons have distinct morphological and physiological characteristics, and divergent responses to modulatory transmitters such as serotonin and acetylcholine (ACh). To better understand how ACh regulates cortical output, in slices of mouse prefrontal cortex (PFC) we compared the responsivity of CPn and COM neurons to transient exposure to exogenous or endogenous ACh. In both neuron subtypes, exogenous ACh generated qualitatively similar biphasic responses in which brief hyperpolarization was followed by longer lasting enhancement of excitability. However, cholinergic inhibition was more pronounced in COM neurons, while excitatory responses were larger and longer lasting in CPn neurons. Similarly, optically triggered release of endogenous ACh from cholinergic terminals preferentially and persistently (for ~40 s) enhanced the excitability of CPn neurons, but had little impact on COM neurons. Cholinergic excitation of CPn neurons involved at least three distinct ionic mechanisms: suppression of KV 7 channels (the 'M-current'), activation of the calcium-dependent non-specific cation conductance underlying afterdepolarizations, and activation of what appears to be a calcium-sensitive but calcium-permeable non-specific cation conductance. Our findings demonstrate projection-specific selectivity in cholinergic signalling in the PFC, and suggest that transient release of ACh during behaviour will preferentially promote corticofugal output. PMID- 29330835 TI - International guidelines for groin hernia management. AB - INTRODUCTION: Worldwide, more than 20 million patients undergo groin hernia repair annually. The many different approaches, treatment indications and a significant array of techniques for groin hernia repair warrant guidelines to standardize care, minimize complications, and improve results. The main goal of these guidelines is to improve patient outcomes, specifically to decrease recurrence rates and reduce chronic pain, the most frequent problems following groin hernia repair. They have been endorsed by all five continental hernia societies, the International Endo Hernia Society and the European Association for Endoscopic Surgery. METHODS: An expert group of international surgeons (the HerniaSurge Group) and one anesthesiologist pain expert was formed. The group consisted of members from all continents with specific experience in hernia related research. Care was taken to include surgeons who perform different types of repair and had preferably performed research on groin hernia surgery. During the Group's first meeting, evidence-based medicine (EBM) training occurred and 166 key questions (KQ) were formulated. EBM rules were followed in complete literature searches (including a complete search by The Dutch Cochrane database) to January 1, 2015 and to July 1, 2015 for level 1 publications. The articles were scored by teams of two or three according to Oxford, SIGN and Grade methodologies. During five 2-day meetings, results were discussed with the working group members leading to 136 statements and 88 recommendations. Recommendations were graded as "strong" (recommendations) or "weak" (suggestions) and by consensus in some cases upgraded. In the Results and summary section below, the term "should" refers to a recommendation. The AGREE II instrument was used to validate the guidelines. An external review was performed by three international experts. They recommended the guidelines with high scores. The risk factors for inguinal hernia (IH) include: family history, previous contra-lateral hernia, male gender, age, abnormal collagen metabolism, prostatectomy, and low body mass index. Peri-operative risk factors for recurrence include poor surgical techniques, low surgical volumes, surgical inexperience and local anesthesia. These should be considered when treating IH patients. IH diagnosis can be confirmed by physical examination alone in the vast majority of patients with appropriate signs and symptoms. Rarely, ultrasound is necessary. Less commonly still, a dynamic MRI or CT scan or herniography may be needed. The EHS classification system is suggested to stratify IH patients for tailored treatment, research and audit. Symptomatic groin hernias should be treated surgically. Asymptomatic or minimally symptomatic male IH patients may be managed with "watchful waiting" since their risk of hernia-related emergencies is low. The majority of these individuals will eventually require surgery; therefore, surgical risks and the watchful waiting strategy should be discussed with patients. Surgical treatment should be tailored to the surgeon's expertise, patient- and hernia-related characteristics and local/national resources. Furthermore, patient health-related, life style and social factors should all influence the shared decision-making process leading up to hernia management. Mesh repair is recommended as first choice, either by an open procedure or a laparo-endoscopic repair technique. One standard repair technique for all groin hernias does not exist. It is recommended that surgeons/surgical services provide both anterior and posterior approach options. Lichtenstein and laparo-endoscopic repair are best evaluated. Many other techniques need further evaluation. Provided that resources and expertise are available, laparo-endoscopic techniques have faster recovery times, lower chronic pain risk and are cost effective. There is discussion concerning laparo-endoscopic management of potential bilateral hernias (occult hernia issue). After patient consent, during TAPP, the contra lateral side should be inspected. This is not suggested during unilateral TEP repair. After appropriate discussions with patients concerning results tissue repair (first choice is the Shouldice technique) can be offered. Day surgery is recommended for the majority of groin hernia repair provided aftercare is organized. Surgeons should be aware of the intrinsic characteristics of the meshes they use. Use of so-called low-weight mesh may have slight short-term benefits like reduced postoperative pain and shorter convalescence, but are not associated with better longer-term outcomes like recurrence and chronic pain. Mesh selection on weight alone is not recommended. The incidence of erosion seems higher with plug versus flat mesh. It is suggested not to use plug repair techniques. The use of other implants to replace the standard flat mesh in the Lichtenstein technique is currently not recommended. In almost all cases, mesh fixation in TEP is unnecessary. In both TEP and TAPP it is recommended to fix mesh in M3 hernias (large medial) to reduce recurrence risk. Antibiotic prophylaxis in average-risk patients in low-risk environments is not recommended in open surgery. In laparo-endoscopic repair it is never recommended. Local anesthesia in open repair has many advantages, and its use is recommended provided the surgeon is experienced in this technique. General anesthesia is suggested over regional in patients aged 65 and older as it might be associated with fewer complications like myocardial infarction, pneumonia and thromboembolism. Perioperative field blocks and/or subfascial/subcutaneous infiltrations are recommended in all cases of open repair. Patients are recommended to resume normal activities without restrictions as soon as they feel comfortable. Provided expertise is available, it is suggested that women with groin hernias undergo laparo-endoscopic repair in order to decrease the risk of chronic pain and avoid missing a femoral hernia. Watchful waiting is suggested in pregnant women as groin swelling most often consists of self-limited round ligament varicosities. Timely mesh repair by a laparo-endoscopic approach is suggested for femoral hernias provided expertise is available. All complications of groin hernia management are discussed in an extensive chapter on the topic. Overall, the incidence of clinically significant chronic pain is in the 10-12% range, decreasing over time. Debilitating chronic pain affecting normal daily activities or work ranges from 0.5 to 6%. Chronic postoperative inguinal pain (CPIP) is defined as bothersome moderate pain impacting daily activities lasting at least 3 months postoperatively and decreasing over time. CPIP risk factors include: young age, female gender, high preoperative pain, early high postoperative pain, recurrent hernia and open repair. For CPIP the focus should be on nerve recognition in open surgery and, in selected cases, prophylactic pragmatic nerve resection (planned resection is not suggested). It is suggested that CPIP management be performed by multi-disciplinary teams. It is also suggested that CPIP be managed by a combination of pharmacological and interventional measures and, if this is unsuccessful, followed by, in selected cases (triple) neurectomy and (in selected cases) mesh removal. For recurrent hernia after anterior repair, posterior repair is recommended. If recurrence occurs after a posterior repair, an anterior repair is recommended. After a failed anterior and posterior approach, management by a specialist hernia surgeon is recommended. Risk factors for hernia incarceration/strangulation include: female gender, femoral hernia and a history of hospitalization related to groin hernia. It is suggested that treatment of emergencies be tailored according to patient- and hernia-related factors, local expertise and resources. Learning curves vary between different techniques. Probably about 100 supervised laparo endoscopic repairs are needed to achieve the same results as open mesh surgery like Lichtenstein. It is suggested that case load per surgeon is more important than center volume. It is recommended that minimum requirements be developed to certify individuals as expert hernia surgeon. The same is true for the designation "Hernia Center". From a cost-effectiveness perspective, day-case laparoscopic IH repair with minimal use of disposables is recommended. The development and implementation of national groin hernia registries in every country (or region, in the case of small country populations) is suggested. They should include patient follow-up data and account for local healthcare structures. A dissemination and implementation plan of the guidelines will be developed by global (HerniaSurge), regional (international societies) and local (national chapters) initiatives through internet websites, social media and smartphone apps. An overarching plan to improve access to safe IH surgery in low resource settings (LRSs) is needed. It is suggested that this plan contains simple guidelines and a sustainability strategy, independent of international aid. It is suggested that in LRSs the focus be on performing high-volume Lichtenstein repair under local anesthesia using low-cost mesh. Three chapters discuss future research, guidelines for general practitioners and guidelines for patients. CONCLUSIONS: The HerniaSurge Group has developed these extensive and inclusive guidelines for the management of adult groin hernia patients. It is hoped that they will lead to better outcomes for groin hernia patients wherever they live. More knowledge, better training, national audit and specialization in groin hernia management will standardize care for these patients, lead to more effective and efficient healthcare and provide direction for future research. PMID- 29330869 TI - Three-year analysis of zirconia implants used for single-tooth replacement and three-unit fixed dental prostheses: A prospective multicenter study. AB - AIM: The aim of the present investigation was to evaluate clinically and radiographically the outcome of zirconia oral implants after 3 years in function. MATERIALS AND METHODS: In 60 patients in need of either a single-tooth replacement or a three-unit fixed dental prosthesis (FDP), a total of 71 one piece zirconia implants were placed and immediately restored with temporary fixed prostheses. After a period of at least 2 months in the mandible and at least 4 months in the maxilla, zirconia-based reconstructions were cemented. The implants were clinically and radiologically examined at implant insertion, prosthetic delivery, at 6 months and then yearly up to 3 years. A linear mixed model was used to analyze statistically the influence of prognostic factors on changes in the marginal bone level. RESULTS: Seventy-one implants (48 in the mandible, 23 in the maxilla) inserted in 60 patients were restored with 49 crowns and 11 FDP. One patient lost his implant after 5 weeks. Five patients with one implant each could not be evaluated after 3 years. Based on 55 patients with a total of 66 implants, the mean survival rate was 98.5% after 3 years in function. A statistically significant mean marginal bone loss (0.70 mm +/- 0.72 mm) has been detected from implant insertion to the 3-year follow-up. The largest marginal bone loss occurred between implantation and prosthetic delivery (0.67 mm +/- 0.56 mm). After delivery, no statistically significant bone level change was observed (0.02 mm +/- 0.59 mm). None of the investigated prognostic factors had a significant influence on changes in the marginal bone level. CONCLUSIONS: After 3 years in function, the investigated one-piece zirconia implant showed a high survival rate and a low marginal bone loss. The implant system was successful for single-tooth replacement and three-unit FDPs. Further investigations with long-term data are needed to confirm these findings. PMID- 29330870 TI - Cell therapy for spinal cord injury with olfactory ensheathing glia cells (OECs). AB - The prospects of achieving regeneration in the central nervous system (CNS) have changed, as most recent findings indicate that several species, including humans, can produce neurons in adulthood. Studies targeting this property may be considered as potential therapeutic strategies to respond to injury or the effects of demyelinating diseases in the CNS. While CNS trauma may interrupt the axonal tracts that connect neurons with their targets, some neurons remain alive, as seen in optic nerve and spinal cord (SC) injuries (SCIs). The devastating consequences of SCIs are due to the immediate and significant disruption of the ascending and descending spinal pathways, which result in varying degrees of motor and sensory impairment. Recent therapeutic studies for SCI have focused on cell transplantation in animal models, using cells capable of inducing axon regeneration like Schwann cells (SchCs), astrocytes, genetically modified fibroblasts and olfactory ensheathing glia cells (OECs). Nevertheless, and despite the improvements in such cell-based therapeutic strategies, there is still little information regarding the mechanisms underlying the success of transplantation and regarding any secondary effects. Therefore, further studies are needed to clarify these issues. In this review, we highlight the properties of OECs that make them suitable to achieve neuroplasticity/neuroregeneration in SCI. OECs can interact with the glial scar, stimulate angiogenesis, axon outgrowth and remyelination, improving functional outcomes following lesion. Furthermore, we present evidence of the utility of cell therapy with OECs to treat SCI, both from animal models and clinical studies performed on SCI patients, providing promising results for future treatments. PMID- 29330872 TI - Repair of high-grade posterior glottic stenosis: A novel criocarytenoid joint release technique. PMID- 29330871 TI - Multi-site N-Glycan mapping study 2: UHPLC. AB - In the first part of this publication, the results from an international study evaluating the precision (i.e., repeatability and reproducibility) of N glycosylation analysis using capillary electrophoresis of APTS-labeled N-glycans were presented. The corresponding results from ultra-high performance liquid chromatography (UHPLC) with fluorescence detection are presented here from 12 participating sites. All participants used the same lot of samples, reagents, and columns to perform the assays. Elution time, peak area and peak area percent values were determined for all peaks >=0.1% peak area, and statistical analysis was performed following ISO 5725-2 guideline principles. The results demonstrated adequate reproducibility, within any given site as well across all sites, indicating that standard UHPLC-based N-glycan analysis platforms are appropriate for general use. PMID- 29330874 TI - Safety of high-current stimulation for intermittent intraoperative neural monitoring in thyroid surgery: A porcine model. AB - OBJECTIVES: During monitored thyroidectomy, displacement of the recurrent laryngeal nerve (RLN) or vagus nerve (VN) in some complicated cases can increase the risk of injury. Although increasing the stimulus current can facilitate nerve mapping and localization, the safety of a high-current stimulus remains unknown. Therefore, this study evaluated the safety of a high-current stimulus in a porcine model. METHODS: Short-duration (1 minute), high-current (3, 5, 10, 15, 20, 25, and 30 mA at 4Hz) stimulus pulses were repeatedly applied to the RLN or VN in six anesthetized piglets. The safety of the high-current stimulus pulses was assessed in terms of hemodynamic stability during VN stimulation and in terms of nerve function integrity after VN and RLN stimulation. RESULTS: During VN stimulation with a high-current stimulus pulse, sinus rhythms in all six piglets showed stable heart rates, and mean arterial pressure was unaffected. High current stimulation of the VN and the RLN did not affect electromyography amplitude or latency. CONCLUSION: This porcine study showed that applying a short duration, high-current stimulus pulse to the VN or RLN during monitored thyroidectomy has no harmful effects. In clinical practice, a short duration of high-current stimulus can be applied to facilitate neural mapping, especially in patients with disoriented nerve positions. LEVEL OF EVIDENCE: NA. Laryngoscope, 128:2206-2212, 2018. PMID- 29330875 TI - Performance of the Early Access AmpliSeqTM Mitochondrial Panel with degraded DNA samples using the Ion TorrentTM platform. AB - The Early Access AmpliSeqTM Mitochondrial Panel amplifies whole mitochondrial genomes for phylogenetic and kinship identifications, using Ion TorrentTM technology. There is currently limited information on its performance with degraded DNA, a common occurrence in forensic samples. This study evaluated the performance of the Panel with DNA samples degraded in vitro, to mimic conditions commonly found in forensic investigations. Purified DNA from five individuals was heat-treated at five time points each (125 degrees C for 0, 30, 60, 120, and 240 min; total n = 25). The quality of DNA was assessed via a real-time DNA assay of genomic DNA and prepared for massively parallel sequencing on the Ion TorrentTM platform. Mitochondrial sequences were obtained for all samples and had an amplicon coverage averaging between 66X to 2803X. Most amplicons (157/162) displayed high coverages (452 +/- 333X), while reads with less than 100X coverage were recorded in five amplicons only (90 +/- 5X). Amplicon coverage was decreased with prolonged heating. At 72% strand balance, reads were well balanced between forward and reverse strands. Using a coverage threshold of ten reads per SNP, complete sequences were recovered in all samples and resolved kinship and, haplogroup relations. Additionally, the HV1 and HV2 regions of the reference and 240-min heat-treated samples (n = 10) were Sanger-sequenced for concordance. Overall, this study demonstrates the efficacy of a novel forensic Panel that recovers high quality mitochondrial sequences from degraded DNA samples. PMID- 29330873 TI - Coupling colloidal forces with yield stress of charged inorganic particle suspension: A review. AB - This paper aims to summarize the series of investigations on coupling suspension yield stress and DLVO (Derjaguin-Landau-Verwey-Overbeek) forces, i.e. van der Waals and electrical double layer forces. This summary provides a better understanding of the basic phenomena associated, historical development and current status of this useful coupling, and also discusses the applicability and limitations/variations of such coupling applied to different types of concentrated aqueous particle suspensions. Aqueous suspensions discussed are composed of charged inorganic fine particles, including metal oxide colloidal particles, mineral fine particles, and clays. The research gaps are identified and specific future perspectives are discussed to further enhance the use of this unique and useful coupling, and to aim for the transition from the modelling of similar particle suspension systems to its dissimilar/mix particle suspension systems that fit more with the current and future industry needs in particle processing. PMID- 29330876 TI - A rare case of topical methazolamide ophthalmic solution causing death due to toxic epidermal necrolysis. PMID- 29330877 TI - Characterization of biologic response modifiers in the supernatant of conventional, refrigerated, and cryopreserved platelets. AB - BACKGROUND: Alternatives to room temperature storage of platelets (PLTs) are of interest to support blood banking logistics. The aim of this study was to compare the presence of biologic response modifiers (BRMs) in PLT concentrates stored under conventional room temperature conditions with refrigerated or cryopreserved PLTs. STUDY DESIGN AND METHODS: A three-arm pool-and-split study was carried out using buffy coat-derived PLTs stored in 30% plasma/70% SSP+. The three matched treatment arms were as follows: room temperature (20-24 degrees C), cold (2-6 degrees C), and cryopreserved (-80 degrees C with DMSO). Liquid-stored PLTs were tested over a 21-day period, while cryopreserved PLTs were tested immediately after thawing and reconstitution in 30% plasma/70% SSP+ and after storage at room temperature. RESULTS: Coagulation factor activity was comparable between room temperature and cold PLTs, with the exception of protein S, while cryopreserved PLTs had reduced Factor (F)V and FVIII activity. Cold-stored PLTs retained alpha granule proteins better than room temperature or cryopreserved PLTs. Cryopreservation resulted in 10-fold higher microparticle generation than cold stored PLTs, but both groups contained significantly more microparticles than those stored at room temperature. The supernatant from both cold and cryopreserved PLTs initiated faster clot formation and thrombin generation than room temperature PLTs. CONCLUSION: Cold storage and cryopreservation alter the composition of the soluble fraction of stored PLTs. These differences in coagulation proteins, cytokines, and microparticles likely influence both the hemostatic capacity of the components and the auxiliary functions. PMID- 29330878 TI - Identification of tentative marker in Corvina and Primitivo wines with CMC-se. AB - This paper introduces CMC-se-a program for computer-assisted structure elucidation. In the experimental part, the combination of modern analytical methods (LC-SPE-NMR/MS) and structure elucidation software is used for the identification of tentative markers in red wines. PMID- 29330879 TI - Biotechnological conversion of spent coffee grounds into lactic acid. AB - : This work investigates the potential bioconversion of spent coffee grounds (SCG) into lactic acid (LA). SCG were hydrolysed by a combination of dilute acid treatment and subsequent application of cellulase. The SCG hydrolysate contained a considerable amount of reducing sugars (9.02 +/- 0.03 g l-1 , glucose; 26.49 +/ 0.10 g l-1 galactose and 2.81 +/- 0.07 g l-1 arabinose) and it was used as a substrate for culturing several lactic acid bacteria (LAB) and LA-producing Bacillus coagulans. Among the screened micro-organisms, Lactobacillus rhamnosus CCM 1825 was identified as the most promising producer of LA on a SCG hydrolysate. Despite the inhibitory effect exerted by furfural and phenolic compounds in the medium, reasonably high LA concentrations (25.69 +/- 1.45 g l-1 ) and yields (98%) were gained. Therefore, it could be demonstrated that SCG is a promising raw material for the production of LA and could serve as a feedstock for the sustainable large-scale production of LA. SIGNIFICANCE AND IMPACT OF THE STUDY: Spent coffee grounds (SCG) represent solid waste generated in millions of tonnes by coffee-processing industries. Their disposal represents a serious environmental problem; however, SCG could be valorized within a biorefinery concept yielding various valuable products. Herein, we suggest that SCG can be used as a complex carbon source for the lactic acid production. PMID- 29330880 TI - Concise Review: Optimized Strategies for Stem Cell-Based Therapy in Myocardial Repair: Clinical Translatability and Potential Limitation. AB - Ischemic heart diseases (IHDs) remain major public health problems with high rates of morbidity and mortality worldwide. Despite significant advances, current therapeutic approaches are unable to rescue the extensive and irreversible loss of cardiomyocytes caused by severe ischemia. Over the past 16 years, stem cell based therapy has been recognized as an innovative strategy for cardiac repair/regeneration and functional recovery after IHDs. Although substantial preclinical animal studies using a variety of stem/progenitor cells have shown promising results, there is a tremendous degree of skepticism in the clinical community as many stem cell trials do not confer any beneficial effects. How to accelerate stem cell-based therapy toward successful clinical application attracts considerate attention. However, many important issues need to be fully addressed. In this Review, we have described and compared the effects of different types of stem cells with their dose, delivery routes, and timing that have been routinely tested in recent preclinical and clinical findings. We have also discussed the potential mechanisms of action of stem cells, and explored the role and underlying regulatory components of stem cell-derived secretomes/exosomes in myocardial repair. Furthermore, we have critically reviewed the different strategies for optimizing both donor stem cells and the target cardiac microenvironments to enhance the engraftment and efficacy of stem cells, highlighting their clinical translatability and potential limitation. Stem Cells 2018;36:482-500. PMID- 29330882 TI - Rate of Cough During Treatment With Angiotensin-Converting Enzyme Inhibitors: A Meta-Analysis of Randomized Placebo-Controlled Trials. AB - Use of protective angiotensin-converting enzyme inhibitors (ACE-I) in patients with cardiovascular disease (CVD) is sometimes limited by incident coughing. In clinical trials, cough occurred also on placebo. We performed a meta-analysis including randomized, placebo-controlled trials reporting cough on ACE-I in patients with CVD. We evaluated the attributable fraction of cough on ACE-I accounting rate on placebo: placebo-adjusted ACE-I (%) = (ACE-I (%) - Placebo (%)) / ACE-I (%). In total, 65,054 patients from 22 included studies were analyzed. Placebo-adjusted ACE-I cough was 37% of 13.5% reported cases on ACE-I, while 8.5% reported cases on placebo were equivalent to 63% of cases on ACE-I, indicating potential other factors for cough than ACE-I in a substantial number of cough cases on ACE-I. Placebo-adjusted ACE-I cough had the highest rates of arterial hypertension (85%) and the lowest of heart failure (29%). Therefore, other causes of cough, particularly in heart failure, should be excluded before ACE-I withdrawal. PMID- 29330881 TI - Cocaine and HIV-1 Tat disrupt cholesterol homeostasis in astrocytes: Implications for HIV-associated neurocognitive disorders in cocaine user patients. AB - Cholesterol synthesis and clearance by astrocytes are tightly regulated to maintain constant levels within the brain. In this context, liver X receptors (LXRs) are the master regulators of cholesterol homeostasis in the central nervous system (CNS). Increasing levels of cholesterol in astrocytes trigger LXR activation leading to the transcription of target genes involved in cholesterol trafficking and efflux, including apolipoprotein E, cytochrome P450 enzymes, sterol regulatory binding protein, and several ATP-binding cassette transporter proteins. The disturbance of LXR signaling in the brain can lead to significant dysfunctions in cholesterol homeostasis, and disruptions in this pathway have been implicated in numerous neurological diseases including Alzheimer's disease and Huntington's disease. HIV infection of the CNS in combination with cocaine use is associated with astrocyte and neuronal energy deficit and damage. We propose that dysregulation in CNS cholesterol metabolism may be involved in the progression of HIV-associated neurocognitive disorders (HAND) and in cocaine mediated neurocognitive impairments. We hypothesize that exposure of astrocytes to cocaine and the HIV protein Tat will disrupt LXR signaling. Alterations in these pathways will in turn, affect cholesterol bioavailability for neurons. Our data show that exposure of astrocytes to cocaine and HIV-Tat significantly decreases LXRbeta levels, downstream signaling and bioavailability of cholesterol. Taken together, these data uncover novel alterations in a bioenergetic pathway in astrocytes exposed to cocaine and the HIV protein Tat. Results from these studies point to a new pathway in the CNS that may contribute to HAND in HIV+ cocaine user individuals. PMID- 29330884 TI - Synapsin III is a key component of alpha-synuclein fibrils in Lewy bodies of PD brains. AB - Lewy bodies (LB) and Lewy neurites (LN), which are primarily composed of alpha synuclein (alpha-syn), are neuropathological hallmarks of Parkinson's disease (PD) and dementia with Lewy bodies (DLB). We recently found that the neuronal phosphoprotein synapsin III (syn III) controls dopamine release via cooperation with alpha-syn and modulates alpha-syn aggregation. Here, we observed that LB and LN, in the substantia nigra of PD patients and hippocampus of one subject with DLB, displayed a marked immunopositivity for syn III. The in situ proximity ligation assay revealed the accumulation of numerous proteinase K-resistant neuropathological inclusions that contained both alpha-syn and syn III in tight association in the brain of affected subjects. Most strikingly, syn III was identified as a component of alpha-syn-positive fibrils in LB-enriched protein extracts from PD brains. Finally, a positive correlation between syn III and alpha-syn levels was detected in the caudate putamen of PD subjects. Collectively, these findings indicate that syn III is a crucial alpha-syn interactant and a key component of LB fibrils in the brain of patients affected by PD. PMID- 29330883 TI - Genotype-phenotype correlations in individuals with pathogenic RERE variants. AB - Heterozygous variants in the arginine-glutamic acid dipeptide repeats gene (RERE) have been shown to cause neurodevelopmental disorder with or without anomalies of the brain, eye, or heart (NEDBEH). Here, we report nine individuals with NEDBEH who carry partial deletions or deleterious sequence variants in RERE. These variants were found to be de novo in all cases in which parental samples were available. An analysis of data from individuals with NEDBEH suggests that point mutations affecting the Atrophin-1 domain of RERE are associated with an increased risk of structural eye defects, congenital heart defects, renal anomalies, and sensorineural hearing loss when compared with loss-of-function variants that are likely to lead to haploinsufficiency. A high percentage of RERE pathogenic variants affect a histidine-rich region in the Atrophin-1 domain. We have also identified a recurrent two-amino-acid duplication in this region that is associated with the development of a CHARGE syndrome-like phenotype. We conclude that mutations affecting RERE result in a spectrum of clinical phenotypes. Genotype-phenotype correlations exist and can be used to guide medical decision making. Consideration should also be given to screening for RERE variants in individuals who fulfill diagnostic criteria for CHARGE syndrome but do not carry pathogenic variants in CHD7. PMID- 29330885 TI - Prolonged duration of persistent cell-free fetal DNA from vanishing twin. PMID- 29330886 TI - Surgery and magnetic resonance imaging increase the risk of hypothermia in infants. AB - AIM: Maintaining normothermia is a tenet of neonatal care. However, neonatal thermal care guidelines applicable to intra-hospital transport beyond the neonatal intensive care unit (NICU) and during surgery or magnetic resonance imaging (MRI) are lacking. The aim of this study is to determine the proportion of infants normothermic (36.5-37.5 degrees C) on return to NICU after management during surgery and MRI, and during standard clinical care in both environments. METHODS: Sixty-two newborns requiring either surgery in the operating theatre (OT) (n = 41) or an MRI scan (n = 21) at the Royal Children's Hospital (Melbourne) NICU were prospectively studied. Core temperature, along with cardiorespiratory parameters, was continuously measured from 15 min prior to leaving the NICU until 60 min after returning. Passive and active warming (intra operatively) was at clinician discretion. RESULTS: The study reported 90% of infants were normothermic before leaving NICU: 86% (MRI) and 93% (OT). Only 52% of infants were normothermic on return to NICU (relative risk (RR) 1.75; 95% confidence interval (CI) 1.39-2.31; number needed to harm (NNH) 2.6). Between departure from the NICU and commencement of surgery, core temperature decreased by mean 0.81 degrees C (95% CI 0.30-1.33; P = 0.0001, analysis of variance), with only 24% of infants normothermic when surgery began (P < 0.0001; RR 3.80 (95% CI 2.33-6.74); NNH 1.5). After an MRI, infants were a mean 0.41 degrees C (95% CI 0.16-0.67) colder than immediately before entering the scanner (P = 0.001, analysis of variance), with only 43% being normothermic (P = 0.003; RR 2.11 (95% CI 1.35-3.74); NNH 2.1). CONCLUSION: Unintentional hypothermia is a common occurrence during surgery in the OT and MRI in neonates, indicating that evidence based warming strategies to prevent hypothermia should be developed. PMID- 29330888 TI - McRoberts' maneuver increases fetal head angle of progression in second stage of labor. PMID- 29330887 TI - Loss of VAMP5 in mice results in duplication of the ureter and insufficient expansion of the lung. AB - BACKGROUND: Vesicle-associated membrane protein 5 (VAMP5) is a member of the SNARE protein family, which regulates the docking and fusion of membrane vesicles within cells. Previously, we reported ubiquitous expression of VAMP5 proteins in various organs except the brain and small intestine. However, the precise roles of VAMP5 in each organ remain unclear. To explore the roles of VAMP5 in vivo, we generated VAMP5 knockout (KO) mice. RESULTS: VAMP5 KO mice showed low birth rate and low body weight. KO embryos grew normally in the uterus, and tended to die around birth. Anatomical analysis revealed that viable KO mice often exhibited duplication of the ureter, and dead KO mice showed insufficient expansion of the lung. VAMP5 was localized in the epithelial cells of the ureter and terminal bronchiole. CONCLUSIONS: VAMP5 KO mice showed a low birth rate and abnormalities of the urinary and respiratory systems. VAMP5 KO mice died around birth, possibly due to defects in vesicoureteral flow and breathing. The results presented could provide a basis for future studies to understand the roles of VAMP5 protein. Developmental Dynamics 247:754-762, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330889 TI - Exercise desaturation and oxygen therapy in ILD and COPD: Similarities, differences and therapeutic relevance. PMID- 29330890 TI - Audit of referrals for concern regarding labial appearance at the Royal Children's Hospital: 2000-2012. AB - AIM: To audit the clinical features and outcomes for all patients referred to our centre with concerns regarding labial appearance. METHODS: Young females referred to a paediatric/adolescent gynaecology tertiary centre between 2000 and 2012 with concerns regarding their labial appearance were retrospectively identified. Adolescents presenting with anomalies were excluded. Retrospective chart review was undertaken to identify reasons for referral, patient characteristics, outcome of referral and concurrent health problems. RESULTS: In total, 46 females presenting with concerns about labial appearance were identified. Five were excluded. Median age of the study population was 14.5 years (range 5-21 years). Only four (9.8%) underwent surgery after a minimum of five consultations each, with mental health review in three of four cases prior to surgery. None of the 41 patients had documented abnormal labia; however, 6 patients had asymmetry, and 3 had a labial width of >5 cm. Of mothers, 24% (n = 10) raised the initial concern regarding labial appearance to a physician, of whom, 50% of patients had a comorbid condition. In total, 70.7% initially reported interference with daily activities, and 87.8% were reassured following discussion. CONCLUSIONS: With appropriate education and counselling, the majority of girls with concerns regarding labial appearance can be managed without surgery. Overall, our data support current international policy that female cosmetic genital surgery not be performed in mature minors unless there are specific indications. More research about characteristics of patients referred with labial concerns, definition of labial size and long-term satisfaction of conservative versus surgical methods is necessary to determine the best approach. PMID- 29330891 TI - Why do African Americans have a higher risk for cerebral disease? PMID- 29330892 TI - Ophthalmic artery Doppler for prediction of pre-eclampsia: systematic review and meta-analysis. AB - OBJECTIVE: To determine the accuracy of ophthalmic artery Doppler in pregnancy for the prediction of pre-eclampsia (PE). METHODS: MEDLINE, EMBASE, CINAHL and The Cochrane Library were searched for relevant citations without language restrictions. Two reviewers independently selected studies that evaluated the accuracy of ophthalmic artery Doppler to predict the development of PE and extracted data to construct 2 * 2 tables. Individual patient data were obtained from the authors if available. A bivariate random-effects model was used for the quantitative synthesis of data. Logistic regression analysis was employed to generate receiver-operating characteristics (ROC) curves and obtain optimal cut offs for each investigated parameter, and a bivariate analysis was employed using predetermined cut-offs to obtain sensitivity and specificity values and generate summary ROC curves. RESULTS: A total of 87 citations matched the search criteria of which three studies, involving 1119 pregnancies, were included in the analysis. All included studies had clear description of the index and reference tests, avoidance of verification bias and adequate follow-up. Individual patient data were obtained for all three included studies. First diastolic peak velocity of ophthalmic artery Doppler at a cut-off of 23.3 cm/s showed modest sensitivity (61.0%; 95% CI, 44.2-76.1%) and specificity (73.2%; 95% CI, 66.9-78.7%) for the prediction of early-onset PE (area under the ROC curve (AUC), 0.68; 95% CI, 0.61 0.76). The first diastolic peak velocity had a much lower sensitivity (39.0%; 95% CI, 20.6-61.0%), a similar specificity (73.2%; 95% CI, 66.9-78.7%) and a lower AUC (0.58; CI, 0.52-0.65) for the prediction of late-onset PE. The pulsatility index of the ophthalmic artery did not show a clinically useful sensitivity or specificity at any cut-off for early- or late-onset PE. Peak ratio above 0.65 showed a similar diagnostic accuracy to that of the first diastolic peak velocity with an AUC of 0.67 (95% CI, 0.58-0.77) for early-onset PE and 0.57 (95% CI, 0.51 0.63) for late-onset disease. CONCLUSIONS: Ophthalmic artery Doppler is a simple, accurate and objective technique with a standalone predictive value for the development of early-onset PE equivalent to that of uterine artery Doppler evaluation. The relationship between ophthalmic Doppler indices and PE cannot be a consequence of trophoblast invasion and may be related to maternal hemodynamic adaptation to pregnancy. The findings of this review justify efforts to elucidate the effectiveness and underlying mechanism whereby two seemingly unrelated maternal vessels can be used for the prediction of a disease considered a 'placental disorder'. Copyright (c) 2018 ISUOG. Published by John Wiley & Sons Ltd. PMID- 29330893 TI - Mitogenomic differences between the normal and tumor cells of colorectal cancer patients. AB - So far, a reliable spectrum of mitochondrial DNA mutations in colorectal cancer cells is still unknown, and neither is their significance in carcinogenesis. Indeed, it remains debatable whether mtDNA mutations are "drivers" or "passengers" of colorectal carcinogenesis. Thus, we analyzed 200 mitogenomes from normal and cancer tissues of 100 colorectal cancer patients. Minority variant mutations were detected at the 1% level. We showed that somatic mutations frequently occur in colorectal cancer cells (75%) and are randomly distributed across the mitochondrial genome. Mutational signatures of somatic mitogenome mutations suggest that they might arise through nucleotide deamination due to oxidative stress. The majority of somatic mutations localized within the coding region (in positions not known from the human phylogeny) and was potentially pathogenic to cell metabolism. Further analysis suggested that the relaxation of negative selection in the mitogenomes of colorectal cancer cells may allow accumulation of somatic mutations. Thus, a shift in glucose metabolism from oxidative phosphorylation to glycolysis may create advantageous conditions for accumulation of mtDNA mutations. Considering the fact that the presence of somatic mtDNA mutations was not associated with any clinicopathological features, we suggested that mtDNA somatic mutations are "passengers" rather than the cause of colorectal carcinogenesis. PMID- 29330894 TI - Structure, function and evolution of the hemerythrin-like domain superfamily. AB - Hemerythrin-like proteins have generally been studied for their ability to reversibly bind oxygen through their binuclear nonheme iron centers. However, in recent years, it has become increasingly evident that some members of the hemerythrin-like superfamily also participate in many other biological processes. For instance, the binuclear nonheme iron site of YtfE, a hemerythrin-like protein involved in the repair of iron centers in Escherichia coli, catalyzes the reduction of nitric oxide to nitrous oxide, and the human F-box/LRR-repeat protein 5, which contains a hemerythrin-like domain, is involved in intracellular iron homeostasis. Furthermore, structural data on hemerythrin-like domains from two proteins of unknown function, PF0695 from Pyrococcus furiosus and NMB1532 from Neisseria meningitidis, show that the cation-binding sites, typical of hemerythrin, can be absent or be occupied by metal ions other than iron. To systematically investigate this functional and structural diversity of the hemerythrin-like superfamily, we have collected hemerythrin-like sequences from a database comprising fully sequenced proteomes and generated a cluster map based on their all-against-all pairwise sequence similarity. Our results show that the hemerythrin-like superfamily comprises a large number of protein families which can be classified into three broad groups on the basis of their cation coordinating residues: (a) signal-transduction and oxygen-carrier hemerythrins (H HxxxE-HxxxH-HxxxxD); (b) hemerythrin-like (H-HxxxE-H-HxxxE); and, (c) metazoan F box proteins (H-HExxE-H-HxxxE). Interestingly, all but two hemerythrin-like families exhibit internal sequence and structural symmetry, suggesting that a duplication event may have led to the origin of the hemerythrin domain. PMID- 29330896 TI - Goodbye to neuromuscular images. PMID- 29330895 TI - Effect of local scrotal heating on the expression of tight junction-associated molecule Occludin in boar testes. AB - The aim of this study was to determine whether local scrotal heating (42 degrees C, for 1 hr) had an effect on the expression of tight junction (TJ)-associated molecule Occludin in boar testes. Adult boars (Landrace, n = 6) were used and randomly divided into two groups (n = 3 each). Three boars were given local scrotal exposure to 42 degrees C for approximately 1 h with a home-made electric blanket of controlled temperature as local scrotal heating group, the other three boars received no heat treatment and were left at standard room temperature as control group. After 6 hr, all boars were castrated and the testes were harvested. qRT-PCR, Western blotting and immunohistochemistry were used to explore the expression and localization of Occludin. qRT-PCR and Western blotting showed that the protein and mRNA levels of Occludin significantly decreased in local scrotal heating group as compared to the control. Furthermore, immunoreactivity staining of Occludin was localized at the sites of the blood testis barrier (BTB) and formed an almost consecutive and strong immunoreactivity strand in the control, while Occludin was limited to Sertoli cells (SCs) and no obvious immunoreactivity strand was present in local scrotal heating group. These data indicated that local scrotal heating decreased the expression of TJ associated molecule Occludin, which may be involved in heat-induced spermatogenesis damage. PMID- 29330897 TI - Cyclodextrin-assisted dispersive liquid-liquid microextraction for the preconcentration of carbamazepine and clobazam with subsequent sweeping micellar electrokinetic chromatography. AB - A new version of dispersive liquid-liquid microextraction, namely, cyclodextrin assisted dispersive liquid-liquid microextraction, with subsequent sweeping micellar electrokinetic chromatography has been developed for the preconcentration and sensitive detection of carbamazepine and clobazam. alpha Cyclodextrin and chloroform were used as the dispersive agent and extraction solvent, respectively. After the extraction, carbamazepine and clobazam were analyzed using micellar electrokinetic chromatography with ultraviolet detection. The detection sensitivity was further enhanced using the sweeping technique. Under optimal extraction and stacking conditions, the calibration curves of carbamazepine and clobazam were linear over a concentration range of 2.0-200.0 ng/mL. The method detection limits at a signal-to-noise ratio of 3 were 0.6 and 0.5 ng/mL with sensitivity enhancement factors of 3575 and 4675 for carbamazepine and clobazam, respectively. This developed method demonstrated high sensitivity enhancement factors and was successfully applied to the determination of carbamazepine and clobazam in human urine samples. The precision and accuracy for urine samples were less than 4.2 and 6.9%, respectively. PMID- 29330898 TI - Determination of phthalate esters in soil using a quick, easy, cheap, effective, rugged, and safe method followed by GC-MS. AB - A quick, easy, cheap, effective, rugged, and safe procedure was designed to extract pesticide residues from fruits and vegetables with a high percentage of water. It has not been used extensively for the extraction of phthalate esters from sediments, soils, and sludges. In this work, this procedure was combined with gas chromatography with mass spectrometry to determine 16 selected phthalate esters in soil. The extraction efficiency of the samples was improved by ultrasonic extraction and dissolution of the soil samples in ultra-pure water, which promoted the dispersion of the samples. Furthermore, we have simplified the extraction step and reduced the risk of organic solvent contamination by minimizing the use of organic solvents. Different extraction solvents and clean up adsorbents were compared to optimize the procedure. Dichloromethane/n-hexane (1:1, v/v) and n-hexane/acetone (1:1, v/v) were selected as the extractants from the six extraction solvents tested. C18/primary secondary amine (1:1, m/m) was selected as the sorbent from the five clean-up adsorbents tested. The recoveries from the spiked soils ranged from 70.00 to 117.90% with relative standard deviation values of 0.67-4.62%. The proposed approach was satisfactorily applied for the determination of phthalate esters in 12 contaminated soil samples. PMID- 29330899 TI - Retrograde transmitral paravalvular leak closure through an antegrade transseptal approach: A novel technique. AB - Mitral paravalvular leak (PVL) remains a well-known complication after mitral valve replacement. Since the first report over 25 years ago, several catheter based PVL closure techniques have been described. Most of these comprise of either an antegrade transseptal approach, or a retrograde transaortic or transapical approach. We herein report a novel percutaneous mitral PVL closure technique that was safely and successfully performed after failed attempt using a conventional antegrade approach. PMID- 29330900 TI - Overexpression of microRNA408 enhances photosynthesis, growth, and seed yield in diverse plants. AB - The ability of a plant to produce grain, fruit, or forage depends ultimately on photosynthesis. There have been few attempts, however, to study microRNAs, which are a class of endogenous small RNAs post-transcriptionally programming gene expression, in relation to photosynthetic traits. We focused on miR408, one of the most conserved plant miRNAs, and overexpressed it in parallel in Arabidopsis, tobacco, and rice. The transgenic plants all exhibited increased copper content in the chloroplast, elevated abundance of plastocyanin, and an induction of photosynthetic genes. By means of gas exchange and optical spectroscopy analyses, we showed that higher expression of miR408 leads to enhanced photosynthesis through improving efficiency of irradiation utilization and the capacity for carbon dioxide fixation. Consequently, miR408 hyper-accumulating plants exhibited higher rate of vegetative growth. An enlargement of seed size was also observed in all three species overproducing miR408. Moreover, we conducted a 2-year-two location field trial and observed miR408 overexpression in rice significantly increased yield, which was primarily attributed to an elevation in grain weight. Taken together, these results demonstrate that miR408 is a positive regulator of photosynthesis and that its genetic engineering is a promising route for enhancing photosynthetic performance and yield in diverse plants. PMID- 29330901 TI - Floral contrivances and specialised pollination mechanism strongly influence mixed mating in Wrightia tomentosa (Apocynaceae). AB - Reproductive success of a plant species is largely influenced by the outcome of mating pattern in a population. It is believed that a significantly larger proportion of animal-pollinated plants have evolved a mixed-mating strategy, the extent of which may vary among species. It is thus pertinent to investigate the key contributors to mating success, especially to identify the reproductive constraints in depauperate populations of threatened plant species. We examined the contribution of floral architecture, pollination mechanism and breeding system on the extent of outcrossing rate in a near-threatened tree species, Wrightia tomentosa. The breeding system was ascertained from controlled pollination experiments. In order to determine outcrossing rate, 60 open pollinated progeny were analysed using an AFLP markers. Although the trees are self-compatible, herkogamy and compartmentalisation of pollen and nectar in different chambers of the floral tube effectively prevent spontaneous autogamy. Pollination is achieved through specialised interaction with moths. Differential foraging behaviour of settling moths and hawkmoths leads to different proportions of geitonogamous and xenogamous pollen on the stigma. However, most open pollinated progeny were the result of xenogamy (outcrossing rate, tm = 0.68). The study shows that floral contrivances and pollination system have a strong influence on mating pattern. The differential foraging behaviour of the pollinators causes deposition of a mixture of self- and cross-pollen to produce a mixed brood. Inbreeding depression and geitonogamy appear to play a significant role in sustaining mixed mating in this species. PMID- 29330902 TI - Conformers, properties, and docking mechanism of the anticancer drug docetaxel: DFT and molecular dynamics studies. AB - The conformational structures and properties of the anticancer drug docetaxel (DTX) are studied theoretically. A total of 3888 trial structures were initially generated by all combinations of internal single-bond rotamers and screened with the B3LYP/3-21G* method. A total of 31 unique conformers were further optimized at the B3LYP/6-311G* method. Their relative energies, dipole moments, rotational constants, and harmonic vibrational frequencies were predicted. Single-point relative energies were then determined at the M06-L/6-311G(2df,p) level. The UV spectrum of the lowest-lying DTX conformer in methanol was investigated with the TD-CAM-B3LYP/6-311 + G(2df,p) method. The 31 unique DTX structures are mainly docked at three different sites within beta-tubulin. Based on the results of molecular docking and double-float MD simulations, the lowest-lying DTX conformer consistently exhibits good docking performance with beta-tubulin. We identified the residues LYS299, ARG215, GLN294, LEU275, THR216, GLU290, PRO274, and THR276 on beta-tubulin as active sites forming a binding pocket responsible for locking DTX within beta-tubulin to make the combination more stable. The RMSD values show that the predicted complexes are favorable, and the SASA analysis shows that the hydrophilic properties of DTX are better than paclitaxel. (c) 2018 Wiley Periodicals, Inc. PMID- 29330903 TI - Lack of correlation between pollen aperture number and environmental factors in pansies (Viola L., sect. Melanium Ging.) - pollen heteromorphism re-examined. AB - The development of different pollen morphs by one specimen - pollen heteromorphism - occurs in ca. one-third species of the genus Viola. Melanium section species (pansies) stand out in producing the widest range of apertures among Viola species. Aperture number decreases with elevation increase, and faster germination of five-aperturate pollen as compared with three-aperturate has previously been postulated. We re-examined pollen heteromorphism in the context of its viability, and made correlations with elevation (>1500 m a.s.l. versus <1500 m a.s.l.), soil type (metalliferous versus non-metalliferous; MET versus NMET) and chromosome number based on selected study criteria of ca. 20% karyologically and morphologically strongly differentiated but genetically closely related pansies. A total of 79% of analysed species were heteromorphic, forming three- to six-colp or ate pollen per individual flower. Mean aperture number and pollen viability were not affected by soil type (MET versus NMET). Mean aperture number was also not influenced by elevation or species chromosome number. Positive correlations were established between aperture number and pollen viability, negative between pollen viability and elevation (increasing altitude of 100 m decreased pollen viability by 0.4%) and lack of correlation between chromosome number and pollen viability. The varied frequencies of different pollen morphs among species are not under the general pressure of ecological conditions, as previously postulated for the species of Melanium section. Rather, this trait in pansies, similar to other floral characters (e.g. long, curved nectar spur, 'landing platform', posterior petals with nectar guides), is adaptive but dependent on the breeding system (inbreeding versus outbreeding) of the individual species. PMID- 29330905 TI - Evidence-based consensus on opportunistic infections in inflammatory bowel disease. PMID- 29330904 TI - Testing a chemical series inspired by plant stress oxylipin signalling agents for herbicide safening activity. AB - BACKGROUND: Herbicide safening in cereals is linked to a rapid xenobiotic response (XR), involving the induction of glutathione transferases (GSTs). The XR is also invoked by oxidized fatty acids (oxylipins) released during plant stress, suggesting a link between these signalling agents and safening. To examine this relationship, a series of compounds modelled on the oxylipins 12-oxophytodienoic acid and phytoprostane 1, varying in lipophilicity and electrophilicity, were synthesized. Compounds were then tested for their ability to invoke the XR in Arabidopsis and protect rice seedlings exposed to the herbicide pretilachlor, as compared with the safener fenclorim. RESULTS: Of the 21 compounds tested, three invoked the rapid GST induction associated with fenclorim. All compounds possessed two electrophilic carbon centres and a lipophilic group characteristic of both oxylipins and fenclorim. Minor effects observed in protecting rice seedlings from herbicide damage positively correlated with the XR, but did not provide functional safening. CONCLUSION: The design of safeners based on the characteristics of oxylipins proved successful in deriving compounds that invoke a rapid XR in Arabidopsis but not in providing classical safening in a cereal. The results further support a link between safener and oxylipin signalling, but also highlight species-dependent differences in the responses to these compounds. (c) 2018 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry. PMID- 29330907 TI - Tubular adenomas with clear cell change in the colorectum: A case with four lesions and a review of the literature. PMID- 29330909 TI - Catalytic and Atom-Economic Csp3 -Csp3 Bond Formation: Alkyl Tantalum Ureates for Hydroaminoalkylation. AB - Atom-economic and regioselective Csp3 -Csp3 bond formation has been achieved by rapid C-H alkylation of unprotected secondary arylamines with unactivated alkenes. The combination of Ta(CH2 SiMe3 )3 Cl2 , and a ureate N,O-chelating ligand salt gives catalytic systems prepared in situ that can realize high yields of beta-alkylated aniline derivatives from either terminal or internal alkene substrates. These new catalyst systems realize C-H alkylation in as little as one hour and for the first time a 1:1 stoichiometry of alkene and amine substrates results in high yielding syntheses of isolated amine products by simple filtration and concentration. PMID- 29330908 TI - Defining expanded areas in EBUS sampling: EBUS guided trans- and intra-pulmonary artery needle aspiration, with review of transvascular EBUS. AB - BACKGROUND: Endobronchial Ultrasound-guided Transbronchial Needle Aspiration (EBUS-TBNA) has revolutionized the diagnostic approach to mediastinal diseases. Lesions located lateral to the pulmonary artery (trans-PA, Station 5), or in the lumen of the PA (intra-PA) are in the 'blind-spot' of EBUS. OBJECTIVES: We describe a case series where EBUS guided trans-pulmonary or intra-pulmonary aspiration (EBUS-TIPNA) was used for diagnosis. METHODS: Retrospective analysis of 10 patients who had EBUS-TIPNA over 3 years in 2 centres. The inclusion criteria included patients with station 5 lesions, or intrapulmonary artery lesions, where no other option was possible. RESULTS: The study included 4 males and 6 females, mean age 52 years, with 7 trans-PA and 3 intra-PA lesions. Adequacy was seen in 10/10, and a definitive diagnosis was made in 9/10 patients. There were no procedure-related complications. CONCLUSION: EBUS-TIPNA can be done as a safe and successful procedure and adds to the armamentarium of Convex Probe EBUS (CP-EBUS), in carefully selected patients. PMID- 29330906 TI - Generating retinoic acid gradients by local degradation during craniofacial development: One cell's cue is another cell's poison. AB - Retinoic acid (RA) is a vital morphogen for early patterning and organogenesis in the developing embryo. RA is a diffusible, lipophilic molecule that signals via nuclear RA receptor heterodimeric units that regulate gene expression by interacting with RA response elements in promoters of a significant number of genes. For precise RA signaling, a robust gradient of the morphogen is required. The developing embryo contains regions that produce RA, and specific intracellular concentrations of RA are created through local degradation mediated by Cyp26 enzymes. In order to elucidate the mechanisms by which RA executes precise developmental programs, the kinetics of RA metabolism must be clearly understood. Recent advances in techniques for endogenous RA detection and quantification have paved the way for mechanistic studies to shed light on downstream gene expression regulation coordinated by RA. It is increasingly coming to light that RA signaling operates not only at precise concentrations but also employs mechanisms of degradation and feedback inhibition to self-regulate its levels. A global gradient of RA throughout the embryo is often found concurrently with several local gradients, created by juxtaposed domains of RA synthesis and degradation. The existence of such local gradients has been found especially critical for the proper development of craniofacial structures that arise from the neural crest and the cranial placode populations. In this review, we summarize the current understanding of how local gradients of RA are established in the embryo and their impact on craniofacial development. PMID- 29330911 TI - Prognostic significance of arterial stiffness and osteoprotegerin in patients with stable coronary artery disease. AB - BACKGROUND: Arterial stiffness and vascular calcification significantly contribute to coronary atherosclerosis progression. The prognostic value of increased arterial stiffness and vascular calcification in subjects with stable coronary artery disease (CAD) after percutaneous coronary intervention(PCI) is currently under question. MATERIALS AND METHODS: We randomly enrolled 262 patients with stable CAD 1 month after successful PCI. Carotid-femoral pulse wave velocity (PWV) was measured as a well-established index of central aortic stiffness. Osteoprotegerin (OPG) plasma levels were measured as a biomarker of vascular calcification. Patients were followed up prospectively up to 52 months. The primary endpoint was the composite of death from cardiovascular causes, myocardial infarction, stroke or hospitalization for cardiovascular causes. RESULTS: During the follow-up period, 48 patients presented the primary composite endpoint. Subjects who presented the primary endpoint, compared to subjects free of cardiovascular events, had significantly increased PWV (9.45 +/- 2.19 m/s vs 8.73 +/- 2.07 m/s, P = .04) and OPG levels (4.21 +/- 2.19 pmol/L vs 3.18 +/- 1.74 pmol/L, P = .003). Survival analysis indicated that PWV predicted adverse cardiac events MACE (Hazard ratio = 1.29 95%CI: 1.07-1.57, P = .008) independently from confounders such as age, sex, smoking habits, ejection fraction, extent of coronary artery disease, hypertension and diabetes mellitus. Interestingly, for every increase in pulse wave velocity by 1 m/s, there is an anticipated increase in the risk of major adverse cardiovascular event (MACE) by 29%. CONCLUSIONS: These findings extend the current knowledge concerning the role of arterial stiffness as powerful biomarkers in cardiovascular disease. Measurement of PWV might have a role in ascertaining prognosis and managing treatment in patients with stable CAD after PCI. PMID- 29330912 TI - High-capacity protein A affinity chromatography for the fast quantification of antibodies: Two-wavelength detection expands linear range. AB - The high-throughput analysis of antibodies from processes can be enhanced when the linear range is expanded and sample preparation is kept to a minimum. We developed a fast chromatography method based on a hexameric variant of staphylococcal protein A immobilized on Toyopearl matrix, TSK 5 PW using two wavelengths. A protocol with 5 min runtime and a single-wavelength detection at 280 nm yielded an upper limit of quantification of 2.10 mg/mL and a lower limit of quantification of 0.06 mg/mL. The optimized method with a runtime of 2 min and two-wavelength detection at 280 and 300 nm allowed us to span a valid concentration range of 0.01-5.20 mg/mL using two calibration curves. Sample selectivity was tested using mock supernatant mixed with antibody concentrations of 0.1-2.1 mg/mL, sample stability in the autosampler was shown for at least 24 h. We also tested the capabilities of the method to determine purity of an antibody sample by calculating the ratio of peak area of elution to peak area of flow-through, which correlated well with the expected purity. The method will be very useful for process development and in-process control, spanning concentrations from seed fermentation to harvest and purification. PMID- 29330913 TI - The mechanism of diflufenican resistance and its inheritance in oriental mustard (Sisymbrium orientale L.) from Australia. AB - BACKGROUND: An oriental mustard population (P3) collected near Quambatook, Victoria was identified as being resistant to diflufenican by screening with the field rate (200 g a.i. ha-1 ) of the herbicide. The mechanism(s) of diflufenican resistance and its inheritance in this population were therefore investigated. RESULTS: Dose-response experiments confirmed that population P3 was 140-fold more resistant to diflufenican than susceptible populations, as determined by the comparison of 50% lethal (LD50 ) values. The phytoene desaturase (PDS) gene from five individuals each of the S1 [susceptible (S)] and P3 [resistant (R)] populations was sequenced, and a substitution of valine for leucine at position 526 (Leu-526-Val) was detected in all five individuals of P3, but not in the S1 population. Inheritance studies showed that diflufenican resistance is encoded in the nuclear genome and is dominant, as the response to diflufenican at 200 g a.i. ha-1 of F1 families was equivalent to that of the resistant biotype. The segregation of F2 phenotypes fitted a 3:1 inheritance model. Segregation of 42 F2 individuals by genotype sequencing fitted a 1:2:1 (ss:Rs:RR) ratio. CONCLUSION: Resistance to diflufenican in oriental mustard is conferred by the Leu-526-Val mutation in the PDS gene. Inheritance of resistance is managed by a single gene with high levels of dominance. (c) 2018 Society of Chemical Industry. PMID- 29330914 TI - Stereodivergent Synthesis of Tetrahydrofuroindoles through Pd-Catalyzed Asymmetric Dearomative Formal [3+2] Cycloaddition. AB - A stereodivergent synthesis of tetrahydrofuroindoles through palladium-catalyzed asymmetric dearomative formal [3+2] cycloaddition of nitroindoles with epoxybutenes was developed. The polarity of the solvent was found to play a key role in the diastereoselectivity. In toluene, good to excellent yields (70-99 %), diastereoselectivity (87/13->95/5 d.r.), and enantioselectivity (85/15-94/6 e.r.) were obtained, regardless of the properties of the substituents on nitroindoles. In acetonitrile, tetrahydrofuroindoles of a different diastereoisomer were produced with good to excellent yields (75-98 %) and stereoselectivity (78/22 93/7 d.r., 93/7-99/1 e.r.). Mechanistic studies were conducted to illustrate the origin of the diastereodivergency. The kinetic experiments indicate that the rate determining step of this reaction is different in different solvents. ESI-MS experiments also support the existence of key palladium complex intermediates and the catalytic cycle of the reaction. PMID- 29330915 TI - Effects of seed mixture sowing with resistant and susceptible rice on population dynamics of target planthoppers and non-target stemborers and leaffolders. AB - BACKGROUND: The widespread planting of insect-resistant crops has caused a dramatic shift in agricultural landscapes, thus raising concerns about the potential impact on both target and non-target pests worldwide. In this study, we examined the potential effects of six seed mixture ratios of insect-resistance dominance [100% (R100), 95% (S05R95), 90% (S10R90), 80% (S20R80), 60% (S40R60), and 0% (S100)] on target and non-target pests in a 2-year field trial in southern China. RESULTS: The occurrence of the target pests Nilaparvata lugens and Sogatella furcifera decreased with an increase in the ratio of resistant rice, and mixture ratios with >=90% resistant rice significantly increased the pest suppression efficiency, with the lowest occurrences of the non-target pests Sesamia inferens, Chilo suppressalis and Cnaphalocrocis medinalis for S100 and S10R90 seed mixture ratios. Furthermore, there were no significant differences in the 1000-grain dry weight and grain yield between R100 and other treatments with >=80% resistant seeds in the mixture (S20R80, S10R90 and S05R95). CONCLUSION: S10R90 produced a good yield and provided the most effective control of both target and non-target pests, with the potential to significantly reduce the application of chemical pesticides for integrated pest management in paddy fields. It is further presumed that the strategy of seed mixture with resistant and susceptible rice would be advantageous for rice yield stability. (c) 2018 Society of Chemical Industry. PMID- 29330916 TI - Separation of three polar compounds from Rheum tanguticum by high-speed countercurrent chromatography with an ethyl acetate/glacial acetic acid/water system. AB - The separation of polar compounds by high-speed countercurrent chromatography is still regarded as a challenge. In this study, an efficient strategy for the separation of three polar compounds from Rheum tanguticum has been successfully conducted by using high-speed countercurrent chromatography. X-5 macroporous resin chromatography was used for the fast enrichment of the target compounds. Then, the target fraction was directly introduced into high-speed countercurrent chromatography for separation using ethyl acetate/glacial acetic acid/water (100:1:100, v/v/v) as the solvent system. Consequently, three polar compounds including gallic acid, catechin, and gallic acid 4-O-beta-d-(6'-O-galloyl) glucoside were obtained with purities higher than 98%. The results showed glacial acetic acid could be such an appropriate regulator for the ethyl acetate/water system. This study provides a reference for the separation of polar compounds from natural products by high-speed countercurrent chromatography. PMID- 29330917 TI - Mitochondrial respiratory capacity remains stable despite a comprehensive and sustained increase in insulin sensitivity in obese patients undergoing gastric bypass surgery. AB - AIM: It has been proposed, but not yet demonstrated by convincing evidence in published articles, that insulin resistance and mitochondrial respiratory function are causally related physiological phenomena. Here, we tested the prediction that weight loss-induced increase in insulin sensitivity will correlate with a corresponding change in mitochondrial respiratory capacity over the same time period. METHODS: Insulin sensitivity was evaluated using the hyperinsulinaemic-euglycaemic clamp technique, and skeletal muscle mitochondrial respiratory capacity was evaluated by high-resolution respirometry in 26 patients with obesity. Each experiment was performed ~2 months and 1-2 weeks before, and ~4 and ~19 months after Roux-en-Y gastric bypass (RYGB) surgery. RESULTS: A substantial weight loss was observed in all patients, and insulin sensitivity increased in all patients over the 21-months time period of the study. In contrast, skeletal muscle mitochondrial respiratory capacity, intrinsic mitochondrial respiratory capacity and mitochondrial content remained unchanged over the same time period. CONCLUSION: Among obese patients with and without type 2 diabetes undergoing RYGB surgery, intrinsic mitochondrial respiratory capacity in skeletal muscle is not correlated with insulin sensitivity before or after the surgical intervention. Mitochondrial respiratory function may not be germane to the pathophysiology and/or aetiology of obesity and/or type 2 diabetes. PMID- 29330918 TI - Leptosphaeria maculans AvrLm9: a new player in the game of hide and seek with AvrLm4-7. AB - Blackleg disease of Brassica napus caused by Leptosphaeria maculans (Lm) is largely controlled by the deployment of race-specific resistance (R) genes. However, selection pressure exerted by R genes causes Lm to adapt and give rise to new virulent strains through mutation and deletion of effector genes. Therefore, a knowledge of effector gene function is necessary for the effective management of the disease. Here, we report the cloning of Lm effector AvrLm9 which is recognized by the resistance gene Rlm9 in B. napus cultivar Goeland. AvrLm9 was mapped to scaffold 7 of the Lm genome, co-segregating with the previously reported AvrLm5 (previously known as AvrLmJ1). Comparison of AvrLm5 alleles amongst the 37 re-sequenced Lm isolates and transgenic complementation identified a single point mutation correlating with the AvrLm9 phenotype. Therefore, we renamed this gene as AvrLm5-9 to reflect the dual specificity of this locus. Avrlm5-9 transgenic isolates were avirulent when inoculated on the B. napus cultivar Goeland. The expression of AvrLm5-9 during infection was monitored by RNA sequencing. The recognition of AvrLm5-9 by Rlm9 is masked in the presence of AvrLm4-7, another Lm effector. AvrLm5-9 and AvrLm4-7 do not interact, and AvrLm5-9 is expressed in the presence of AvrLm4-7. AvrLm5-9 is the second Lm effector for which host recognition is masked by AvrLm4-7. An understanding of this complex interaction will provide new opportunities for the engineering of broad-spectrum recognition. PMID- 29330919 TI - Meta-analysis of laparoscopic versus open liver resection for hepatocellular carcinoma. AB - AIM: The aim of this study was to evaluate the surgical safety and effectiveness of laparoscopic hepatectomy (LH) in short- and long-term outcomes compared to open hepatectomy (OH) in patients treated for hepatocellular carcinoma (HCC). METHODS: An electronic search of reports published before August 2017 was carried out to identify comparative studies evaluating LH versus OH for HCC. RESULTS: A total of 5889 patients (2421 underwent LH; 3468 underwent OH) were included in our meta-analysis from 47 studies. Laparoscopic hepatectomies were associated with favorable outcomes in terms of operative blood loss (mean difference [MD], 147.27; 95% confidence interval [CI], -217.00, -77.55), blood transfusion requirement (odds ratio [OR], 0.51; 95% CI, 0.40, 0.65), pathologic resection margins (MD, 0.07; 95% CI, 0.02, 0.12; P = 0.01), R0 resection rate (OR, 1.34; 95% CI, 0.98, 1.84; P = 0.07), and length of hospital stay (MD, -5.13; 95% confidence interval, -6.23, -4.03). There were no differences between the groups in overall survival (OS) at 1 year (OR, 1.41; 95% CI, 1.00, 1.98), 3 years (OR, 1.12; 95% CI, 0.93, 1.36), or 5 years (OR, 1.18; 95% CI, 0.94, 1.46), in disease free survival (DFS) at 1 (OR, 1.19; 95% CI, 0.94, 1.51), 3 years (OR, 1.07; 95% CI, 0.86, 1.33), or 5 years (OR, 1.13; 95% CI, 0.92, 1.40), or in recurrence (OR, 0.90; 95% CI, 0.74, 1.08). CONCLUSION: Compared to OH, LH is superior in terms of lower intraoperative blood loss and the requirement for blood transfusion, larger pathologic resection margins, increased R0 resection rates, and shorter length of hospital stay. Laparoscopic hepatectomy and OH have similar OS, DFS, and recurrence. PMID- 29330920 TI - Macronutrient and fibre intake of young Spanish children with reference to their in utero growth status: Are they eating a healthy diet? AB - AIM: To compare macronutrient and fibre intake by pre-school children born with intra-uterine growth restriction (IUGR) or as appropriate for gestational age (AGA) and to compare their intake with paediatric nutritional recommendations for identification of potential areas of modification during early life. METHODS: A parental 3-day dietary record was obtained for children of age 1-6 years, born at Hospital Clinic, Barcelona, Spain (2002-2007) with IUGR (n = 37) or AGA (n = 53). Mean nutrient intake (adjusted for body mass index), nutrient adequacy ratios (NAR) and percentage of energy intake (EI%) were compared. RESULTS: Macronutrient and fibre intake of the two groups did not differ significantly. However, IUGR children showed significantly higher than the recommended levels of protein EI% (18 (95% confidence interval (CI) 16-19)), NAR for saturated fatty acids (SFAs) (1.2 (95% CI 1.1-1.5)) and NAR for carbohydrate (1.4 (95% CI 1.2-1.6)) and significantly lower than the recommended levels of NAR for unsaturated fatty acids (UFAs) (0.6 (95% CI 0.5-0.8)) and for fibre (0.6 (95% CI 0.5-0.8)). Likewise, children born with AGA showed similar pattern compared to the recommended levels for protein EI% (17 (95% CI 16-18)), NAR for SFAs (1.3 (95% CI 1.2-1.4)), NAR for UFAs (0.6 (95% CI 0.5-0.7)) and NAR for fibre (0.8 (95% CI 0.7 0.9)). CONCLUSION: Spanish pre-school children consume proteins and SFAs in abundance and UFAs and fibre in moderation. Reinforcement of healthy eating is recommended for long-term health benefits, especially for at-risk children born with IUGR, whose consumption of carbohydrate is additionally greater than that recommended. PMID- 29330921 TI - Four and a half domain 2 (FHL2) scaffolding protein is a marker of connective tissues of developing digits and regulates fibrogenic differentiation of limb mesodermal progenitors. AB - Four and a half LIM domain 2 (FHL2) is a multifunctional scaffolding protein of well-known function regulating cell signalling cascades and gene transcription in cancer tissues. However, its function in embryonic systems is poorly characterized. Here, we show that Fhl2 is involved in the differentiation of connective tissues of developing limb autopod. We show that Fhl2 exhibits spatially restricted and temporally dynamic expression around the tendons of developing digits, interphalangeal joint capsules, and fibrous peridigital tissue. Immunolabelling analysis of the skeletal progenitors identified a predominant, but not exclusive, cytoplasmic distribution of FHL2 being associated with focal adhesions and actin cytoskeleton. In the course of chondrogenic differentiation of cultures of limb skeletal progenitors, the expression of Fhl2 is down-regulated. Furthermore, cultures of skeletal progenitors overexpressing Fhl2 take on a predominant fibrogenic appearance. Both gain-of-function and loss of-function experiments in the micromass culture assays revealed a positive transcriptional influence of Fhl2 in the expression of fibrogenic markers including Scleraxis, Tenomodulin, Tenascin C, betaig-h3, and Tgif1. We further show that the expression of Fhl2 is positively regulated by profibrogenic signals including Tgfbeta2, all-trans-retinoic acid, and canonical Wnt signalling molecules and negatively regulated by prochondrogenic factors of the bone morphogenetic protein family. Expression of Fhl2 is also regulated negatively in immobilized limbs, but this influence appears to be mediated by other connective tissue markers, such as Tgfbetas and Scleraxis. PMID- 29330922 TI - 2018 message from the editor in chief-Movement Disorders journal at cruise speed. PMID- 29330923 TI - Mutant parkin-induced parkinsonism from an electrical point of view: Abnormal excitatory response to dopamine resolved after substitution. PMID- 29330924 TI - Erratum. PMID- 29330925 TI - In Situ Growth of MnO2 Nanosheets on N-Doped Carbon Nanotubes Derived from Polypyrrole Tubes for Supercapacitors. AB - Nitrogen-doped porous carbon nanotubes@MnO2 (N-CNTs@MnO2 ) nanocomposites are prepared through the in situ growth of MnO2 nanosheets on N-CNTs derived from polypyrrole nanotubes (PNTs). Benefiting from the synergistic effects between N CNTs (high conductivity and N doping level) and MnO2 nanosheets (high theoretical capacity), the as-prepared N-CNTs@MnO2 -800 nanocomposites show a specific capacitance of 219 F g-1 at a current density of 1.0 A g-1 , which is higher than that of pure MnO2 nanosheets (128 F g-1 ) and PNTs (42 F g-1 ) in 0.5 m Na2 SO4 solution. Meanwhile, the capacitance retention of 86.8 % (after 1000 cycles at 10 A g-1 ) indicates an excellent electrochemical performance of N-CNTs@MnO2 prepared in this work. PMID- 29330926 TI - Detection of bovine Deltapapillomavirus DNA in peripheral blood of healthy sheep (Ovis aries). AB - Blood samples from 65 sheep were tested for the presence of bovine Deltapapillomavirus (deltaPVs) DNA. The sheep were divided into three groups. Sheep in groups 1 and 2 were from Sardinia and Campania, respectively, and were in contact with cattle and grazed on lands contaminated with bracken fern. Sheep in Group 3 lived in closed pens and had no contact with cattle. These sheep were fed hay that did not contain bracken fern. Bovine deltaPV E5 DNA was detected in blood from 24 of 27 (89%) sheep in Group 1. A single bovine deltaPV type was detected in the blood from nine (33%) sheep, including the detection of bovine deltaPV-1 DNA in four sheep, bovine deltaPV-2 in four and deltaPV-13 in one sheep. Two deltaPV types were detected in 33% of the sheep, and three bovine deltaPV types were detected in 22% of the sheep. Bovine deltaPVs were detected in 17 of 20 (85%) sheep from Group 2. The detection rate by a single deltaPV type was 40% with just deltaPV-1 DNA amplified from two, just deltaPV-2 DNA from four, and just deltaPV-13 DNA from two sheep. Two and three deltaPVs were detected in 30% and 15%, respectively. All sequenced amplicons showed a 100% identity with papillomaviral E5 DNA deposited in GenBank. Bovine deltaPV-14 DNA sequences were not detected from any sheep. No bovine deltaPV DNA was revealed in blood samples from sheep in Group 3. The detection of bovine deltaPV DNA in the blood of sheep means that sheep may be able to be infected by these PVs. This suggests that bovine deltaPVs could potentially be a previously unrecognized cause of disease in sheep. Furthermore, it is possible that sheep could act as a reservoir for these viruses. PMID- 29330927 TI - Defined Serum-Free Medium for Bioreactor Culture of an Immortalized Human Erythroblast Cell Line. AB - Anticipated shortages in donated blood supply have prompted investigation of alternative approaches for in vitro production of red blood cells (RBCs), such as expansion of conditional immortalization erythroid progenitors. However, there is a bioprocessing challenge wherein factors promoting maximal cell expansion and growth-limiting inhibitory factors are yet to be investigated. The authors use an erythroblast cell line (ImEry) derived from immortalizing CD71+CD235a+ erythroblast from adult peripheral blood for optimization of expansion culture conditions. Design of experiments (DOE) is used in media formulation to explore relationships and interactive effects between factors which affect cell expansion. Our in-house optimized medium formulation produced significantly higher cell densities (3.62 +/- 0.055) * 106 cells mL-1 , n = 3) compared to commercial formulations (2.07 +/- 0.055) * 106 cells mL-1 , n = 3; at 209 h culture). Culture media costs per unit of blood is shown to have a 2.96-3.09 times cost reduction. As a proof of principle for scale up, ImEry are expanded in a half-liter stirred-bioreactor under controlled settings. Growth characteristics, metabolic, and molecular profile of the cells are evaluated. ImEry has identical O2 binding capacity to adult erythroblasts. Amino acid supplementation results in further yield improvements. The study serves as a first step for scaling up erythroblast expansion in controlled bioreactors. PMID- 29330928 TI - Specific labelling of myonuclei by an antibody against pericentriolar material 1 on skeletal muscle tissue sections. AB - AIM: Skeletal muscle is a heterogeneous tissue containing several different cell types, and only about 40%-50% of the cell nuclei within the tissue belong to myofibres. Existing technology, attempting to distinguish myonuclei from other nuclei at the light microscopy level, has led to controversies in our understanding of the basic cell biology of muscle plasticity. This study aims at demonstrating that an antibody against the protein pericentriolar material 1 (PCM1) can be used to reliably identify myonuclei on histological cross sections from humans, mice and rats. METHODS: Cryosections were labelled with a polyclonal antibody against PCM1. The specificity of the labelling for myonuclei was verified using 3D reconstructions of confocal z-stacks triple-labelled for DNA, dystrophin and PCM1, and by co-localization with nuclear mCherry driven by the muscle-specific Alpha-Actin-1 promoter after viral transduction. RESULTS: The PCM1 antibody specifically labelled all myonuclei, and myonuclei only, in cryosections of muscles from rats, mice and men. Nuclei in other cell types including satellite cells were not labelled. Both normal muscles and hypertrophic muscles after synergist ablation were investigated. CONCLUSION: Pericentriolar material 1 can be used as a specific histological marker for myonuclei in skeletal muscle tissue without relying on counterstaining of other structures or cumbersome and subjective analysis of nuclear positioning. PMID- 29330929 TI - Adipocytes affect castration-resistant prostate cancer cells to develop the resistance to cytotoxic action of NK cells with alterations of PD-L1/NKG2D ligand levels in tumor cells. AB - BACKGROUND: Obesity affects prostate cancer (PCa) progression, and the periprostatic adipose tissue adjacent to the prostate is considered a driving force of disease progression. Adipocytes are the main cell population in adipose tissues and their paracrine role contributes to PCa progression, however its implication in modulating immune reactions remains largely unknown. We investigated the adipocyte role in controlling the susceptibility of castration resistant PCa (CRPC) cells to the cytotoxic action of natural killer (NK) cells. METHODS: Using primary NK cells as the NK cell source, NK cell cytotoxicities to CRPC cells, either control media treated or adipocyte-conditioned media (CM) treated, were tested in lactate dehydrogenase (LDH) release-based assays. The levels of programmed death receptor ligand (PD-L1) and NK group 2D (NKG2D) ligands in adipocyte CM-treated CRPC cells were analyzed in qPCR analyses. Effects of blocking adipocyte action on altering PD-L1/NKG2D ligand levels and the susceptibility of CRPC cells to NK cell cytotoxicity were investigated. RESULTS: We found NK cell cytotoxicity to CRPC cells decreases when tumor cells are treated with adipocyte CM associated with PD-L1 and NKG2D ligand level alterations. Further, we discovered that the JAK/Stat3 signaling pathway was responsible for the adipocyte CM effect. Two adipokine molecules, IL-6 and leptin, were shown to be important in activation of the JAK/Stat3 signaling in CRPC cells to modulate the PD-L1/NKG2D ligand level alteration. Adding the inhibitors of JAK/Stat3 signaling or neutralizing antibodies of IL-6 or leptin increased the susceptibility of CRPC cells to NK cell action. CONCLUSIONS: Blocking the adipocyte effect by inhibiting the IL-6/leptin-JAK/Stat3 signaling axis may enhance NK cell mediated immunity to CRPC cells and this strategy may help to develop future therapeutics to treat obese PCa patients. PMID- 29330930 TI - Gender-specific risk factors for androgenetic alopecia in the Korean general population: Associations with medical comorbidities and general health behaviors. AB - BACKGROUND: The relationships between androgenetic alopecia (AGA) and various factors related to metabolic syndrome have been demonstrated in previous studies. However, it remains unclear because of inconsistent results. We investigated the associations between AGA and various risk factors related to metabolic syndrome according to gender. METHODS: We conducted a population-based cross-sectional survey of 2028 Koreans (1050 men, 978 women). The basic and specific (BASP) classification was used for diagnosis of AGA. We collected information on risk factors though questionnaires and medical records. RESULTS: AGA was significantly associated with age, family history of AGA, hypertension, diabetes mellitus, and waist circumference in both genders. Female subjects with AGA were more likely to have cerebrovascular disease, dyslipidemia, and obesity; however, these associations were not observed in the male subjects. When multiple regression analysis was applied, there was a significant relationship between hypertension and AGA in male subjects. However, there was no statistically significant association in female subjects. CONCLUSION: The different results according to gender might arise from different mechanisms of AGA. There was a significant relationship between hypertension and AGA in male subjects. Evaluation of blood pressure in male patients with AGA might facilitate interventions for hypertension. PMID- 29330931 TI - Teaching & Learning Tips 4: Motivation and emotion in learning. AB - Challenge: Trainees' motivational and emotional states can influence their learning and career decisions, but historically these "affective" learning factors have received little attention in medical education. In this "Tips" piece, we outline strategies to positively influence trainees' intrinsic motivation and emotion toward their training to ultimately enhance their overall learning experience. PMID- 29330932 TI - Influences for gender disparity in dermatology in North America. AB - BACKGROUND: Despite constituting half the population, women represent a minority of active physicians and hold a small proportion of faculty leadership positions in North America. However, dermatology is one of the few specialties where women comprise a substantial portion of the workforce. This study explores extent and contributors to gender disparity in academic dermatology faculty positions, leadership, and research. METHODS: We collected data on academic faculty including leadership from the websites of accredited U.S. and Canadian dermatology faculties. We used PubMed and SCOPUS to collect faculty research information including h-index, number of publications, citations, and years of active research. RESULTS: Although women constitute almost half of all dermatologists in the U.S. and Canada (47.9%), only one-fourth (26.1%) of all faculty heads are women. Furthermore, the proportion of women in higher faculty ranks (Assistant Professor, Associate Professors, and Professors) is much lower than males. Female dermatologists also have fewer publications, citations, and years of active research. Interestingly, having a female in a leadership position is associated with a higher proportion of female dermatologists in the faculty. CONCLUSIONS: Gender disparity exists in academic dermatology, and the current academics fail to account for the enormous social challenges that women face, which may put them at a disadvantage to career advancement. Among other factors, better representation of female leadership may encourage and inspire women joining academic faculties in the future. PMID- 29330933 TI - To avoid a misleading genetic diagnosis of epidermolysis bullosa. PMID- 29330934 TI - Melatonin inhibits the proliferation of breast cancer cells induced by bisphenol A via targeting estrogen receptor-related pathways. AB - BACKGROUND: Background: Bisphenol A (BPA) is an estrogen-like chemical widely contained in daily supplies. There is evidence that environmental exposure to BPA could contribute to the development of hormone-related cancers. As is reported in numerous studies, melatonin, an endogenous hormone secreted by the pineal gland, could markedly inhibit estrogen-induced proliferation of breast cancer (BC) cells. In this study, we intended to reveal the effects of melatonin on BPA induced proliferation of estrogen receptor-positive BC cells. METHODS: Methods: We used methyl thiazolyl tetrazolium, luciferase reporter gene and western blotting assays to testify the effect of melatonin on BPA-mediated proliferation of MCF-7 and T47D cells. RESULTS: Methyl thiazolyl tetrazolium and colony formation assays showed that melatonin could significantly abolish BPA-elevated cell proliferation. Meanwhile, BPA-upregulated phosphorylation of ERK and AKT was decreased by melatonin treatment. Mechanistically, we found that BPA was capable of upregulating the protein levels of steroid receptor coactivators (SRC-1, SRC 3), as well as promoting the estrogen response element activity. However, the addition of melatonin could remarkably block the elevation of steroid receptor coactivators expression and estrogen response element activity triggered by BPA. CONCLUSION: Conclusions: Therefore, these results demonstrated that melatonin could abrogate BPA-induced proliferation of BC cells. Therapeutically, melatonin could be regarded as a potential medication for BPA-associated BC. PMID- 29330935 TI - Takotsubo cardiomyopathy in a young adult with transplanted heart: what happened to denervation? AB - This manuscript describes the first report of takotsubo cardiomyopathy in a young heart transplant recipient following angry debate. Our patient is a 21-year-old woman with cardiac transplant performed owing to right ventricular failure in congenital heart disease. Positive echocardiography with typical asymmetry of regional function, positive enzymes, and negative biopsy and angiography met the criteria for the diagnosis of takotsubo cardiomyopathy. Patient was discharged after 1 week in good clinical conditions and fully recovered cardiac function. The development of takotsubo cardiomyopathy in transplanted heart suggests that re-innervation occurs, thus representing a target for catecholamine-induced cardiac dysfunction. PMID- 29330936 TI - Give me a sample of air and I will tell which species are found from your region: Molecular identification of fungi from airborne spore samples. AB - Fungi are a megadiverse group of organisms, they play major roles in ecosystem functioning and are important for human health, food production and nature conservation. Our knowledge on fungal diversity and fungal ecology is however still very limited, in part because surveying and identifying fungi is time demanding and requires expert knowledge. We present a method that allows anyone to generate a list of fungal species likely to occur in a region of interest, with minimal effort and without requiring taxonomical expertise. The method consists of using a cyclone sampler to acquire fungal spores directly from the air to an Eppendorf tube, and applying DNA barcoding with probabilistic species identification to generate a list of species from the sample. We tested the feasibility of the method by acquiring replicate air samples from different geographical regions within Finland. Our results show that air sampling is adequate for regional-level surveys, with samples collected >100 km apart varying but samples collected <10 km apart not varying in their species composition. The data show marked phenology, and thus obtaining a representative species list requires aerial sampling that covers the entire fruiting season. In sum, aerial sampling combined with probabilistic molecular species identification offers a highly effective method for generating a species list of air-dispersing fungi. The method presented here has the potential to revolutionize fungal surveys, as it provides a highly cost-efficient way to include fungi as a part of large-scale biodiversity assessments and monitoring programs. PMID- 29330937 TI - First-time detection of porcine reproductive and respiratory syndrome virus (PRRSV) infection in Uruguay. AB - Within the last two decades, several high-impact viruses have emerged in the global swine population, including porcine reproductive and respiratory syndrome virus (PRRSV). In Uruguay, the more recent serological survey for PRRSV and other notifiable diseases such as Aujeszky's disease virus (ADV) and classical swine fever virus (CSFV) dated from year 2000. The main purpose of this study was to update our information on the infection status of PRRSV, ADV and CSFV in Uruguayan pig herds, in order to keep informed about the epidemiological situation of these notifiable infections in the country. For serological testing, a total of 524 swine serum samples collected during the period 2014-2016 were assayed by commercial ELISAs. Our results revealed the (unexpected) presence of PRRSV antibodies in Uruguayan domestic swine herds and confirmed the absence of ADV and CSFV antibodies in all of the assessed samples. Following such initial finding, PRRSV antibodies were further investigated in 23 retrospective samples collected during 2010-2014. Thirteen of these 23 samples resulted seropositive. Subsequently, a molecular detection approach in frozen serum samples was implemented to confirm PRRSV infection, and viral RNA was identified by reverse transcription-nested polymerase chain reaction (RT-nPCR). Fourteen of 86 evaluated 2014-2016 samples resulted positive for viral RNA, while molecular analysis of four retrospective samples also revealed the presence of PRRSV type 2. Viral isolation of selected samples was carried out in porcine alveolar macrophages (PAM) and MARC 145 simian kidney cells, and the virus identity was confirmed by cytopathic effect (CPE) and immunofluorescence assay (IFA) using specific monoclonal antibodies for PRRSV nucleocapsid. Data reported here evidence for the first time the circulation of PRRSV type 2 in Uruguay, and retrospective serology results suggest that the virus has been infecting pigs in this country at least since 2011. PMID- 29330938 TI - Predictive value of neutrophil to lymphocyte ratio in long-term outcomes of left main and/or three-vessel disease in patients with acute myocardial infarction. AB - OBJECTIVES: We sought to evaluate the independent predictive value of left main disease (LMD) and/or three-vessel disease (LMD/3VD) in acute myocardial infarction (AMI) patients. BACKGROUND: Patients with acute coronary syndrome resulting from LMD and/or three-vessel disease (LMD/3VD) are at the highest risk of adverse cardiovascular events. Neutrophil to lymphocyte ratio (NLR) has been proposed as a marker of cardiovascular risk, but the prognostic value of NLR in patients with LMD/3VD who underwent percutaneous coronary intervention (PCI) is not clearly defined. METHODS: Patients (n = 806) admitted with LMD/3VD who underwent PCI between January 2013 and December 2013 were followed up for 2 years. Admission NLR was divided into two sub-groups based on an optimal cut off value predicting 2-year all-cause mortality. The primary end point was all-cause death. The secondary end point was long-term major adverse cardiovascular and cerebrovascular events (MACCE). RESULTS: During follow-up, the high NLR group was associated with a significantly higher rate of long-term all-cause mortality (6.7 vs. 0.9%, P < .001), and MACCE (24.7 vs. 15.8%, P = .002) compared to the low NLR group. In multivariate analysis, after adjusting for risk factors, NLR >= 3.39 was determined to be an independent predictor of 2-year all-cause mortality (hazard ratio[HR] 3.08, 95% confidence interval [CI] 1.06 to 8.97, P = .039) and MACCE (hazard ratio 1.44, 95% CI 1.01 to 2.05, P = .046) for LMD/3VD. CONCLUSIONS: The admission NLR as relatively inexpensive marker of inflammation may aid in the risk stratification and prognosis of patients diagnosed with LMD/3VD. PMID- 29330939 TI - Corrigendum. PMID- 29330940 TI - Extracorporeal shockwave therapy for treatment of keloid scars. AB - The purpose of this investigation was to study the effectiveness of extracorporeal shockwave therapy (ESWT) for the treatment of keloid scars, and compared the results with intralesional steroid injection. Thirty-nine patients were randomly divided into 22 in ESWT group and 17 in steroid group. The ESWT group received 3 ESWT treatments in 6 weeks. The steroid group received three intra-lesional triamcinolone injections in 6 weeks. The evaluations included gross morphology, functional outcome, local blood flow perfusion, biopsy for histopathological examination, and immunohistochemical analysis. Both groups showed significant improvements in appearance with less discoloration, flattening and softer consistency, and more elasticity of the lesions. There is a significant reduction in keloid height after treatment in both groups, and significant differences are noticed between two groups after treatment. The volume of keloid was decreased after treatment but there is no statistically significant difference between two groups. Both groups showed comparable functional scores, POSAS patient, and observer scales. The blood flow perfusion rates were statistically not significant between two groups before and after treatments. Histopathological findings revealed no significant difference in cell count, cell activity, and cell concentration between two groups. After ESWT, the significant decreases in collagen type I, type III, and Masson Trichrome stain were observed as compared with steroid group. However, very little changes were noticed in angiogenesis, inflammatory cytokines, proliferating and regeneration, and apoptosis, with no statistical significance noticed between two groups before and after treatment. This study revealed that ESWT showed comparable functional outcome and POSAS patient and observer scales as compared with steroid injection for keloid scars. Treatment of keloid scars with ESWT resulted in significant decreases in collagen fibers and increases in MMP-13 enzyme. PMID- 29330941 TI - Hydrophobic and hydrophilic effects on water structuring and adhesion in denture adhesives. AB - Denture adhesives are designed to be moisture-sensitive through the inclusion of a blend of polymer salts with varying degrees of water-sensitivity. This enables the adhesive to mix with saliva in vivo and activate its high tack, through the formation of a mucilaginous layer. We report for the first time, the use of differential scanning calorimetry to study a series of hydrophobic and hydrophilic polymeric systems in order to correlate water-structuring behavior with adhesion strength. Adhesive bonding of the more hydrophobic variants was higher than that of a commercial-based control and a more hydrophilic polymer system in both lap shear and tensile configurations. Water-binding data suggested that increasing the hydrophobicity of the maleic acid copolymer substituents led to decreased levels of freezing water. In comparison, increasing the hydrophilic nature of the polymer backbone gave higher levels of freezing water within the hydrated samples. The results of this study emphasize the importance of varying the levels of hydrophobic and hydrophilic components within denture adhesive formulations, alongside the types of water present within the adhesive systems. This phenomenon has shown the potential to fine-tune the adhesive properties and failure mode against poly(methyl methacrylate), surfaces. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1355-1362, 2018. PMID- 29330942 TI - Skeletal development in the heterocercal caudal fin of spotted gar (lepisosteus oculatus) and other lepisosteiformes. AB - BACKGROUND: The caudal fin of actinopterygians experienced substantial morphological changes during evolution. In basal actinopterygians, the caudal fin skeleton supports an asymmetrical heterocercal caudal fin, while most teleosts have a symmetrical homocercal caudal fin. The transition from the ancestral heterocercal form to the derived homocercal caudal fin remains poorly understood. Few developmental studies provide an understanding of derived and ancestral characters among basal actinopterygians. To fill this gap, we examined the development of the caudal fin of spotted gar Lepisosteus oculatus, one of only eight living species of Holostei, the sister group to the teleosts. RESULTS: Our observations of animals from fertilization to more than a year old provide the most detailed description of the development of caudal fin skeletal elements in any Holostean species. We observed two different types of distal caudal radials replacing two transient plates of connective tissue, identifying two hypaxial ensembles separated by a space between hypurals 2 and 3. These features have not been described in any gar species, but can be observed in other gar species, and thus represent anatomical structures common to lepisosteiformes. CONCLUSIONS: The present work highlights the power and importance of ontogenic studies and provides bases for future evolutionary and morphological investigations on actinopterygians fins. Developmental Dynamics 247:724-740, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330943 TI - Epigenetic markers in circulating cell-free DNA as prognostic markers for survival of castration-resistant prostate cancer patients. AB - BACKGROUND: Noninvasive biomarkers to guide personalized treatment for castration resistant prostate cancer (CRPC) are needed. In this study, we analyzed hypermethylation patterns of two genes (GSTP1 and APC) in plasma cell-free DNA (cfDNA) of CRPC patients. The aim of this study was to analyze the cfDNA concentrations and levels of the epigenetic markers and to assess the value of these biomarkers for prognosis. METHODS: In this prospective study, patients were included before starting new treatment after developing CRPC. The blood samples were collected prior to start of the treatment and at three time points thereafter. cfDNA was extracted from 1.5 mL of plasma and before performing a methylation-specific PCR, bisulfate modification was carried out. RESULTS: The median levels of cfDNA, GSTP1, and APC copies in the baseline samples of CRPC patients (n = 47) were higher than in controls (n = 30). In the survival analysis, the group with baseline marker levels below median had significant less PCa-related deaths (P-values <0.02) and did not reach the median survival point. The survival distributions for the groups were statistically significant for the cfDNA concentration, GSTP1 and APC copies, as well as PSA combined with GSTP1 + APC (P-values <0.03). Furthermore, there were strong positive correlations between PSA and marker response after starting treatment (P-values <0.04). CONCLUSIONS: In conclusion, this study showed the kinetics of methylated cfDNA (GSTP1 and APC) in plasma of CRPC patients after starting treatment. Furthermore, the value of the markers before treatment is prognostic for overall survival. These results are promising for developing a test to guide treatment-decision making for CRPC patients. PMID- 29330944 TI - Improvement of islet function and survival by integration of perfluorodecalin into microcapsules in vivo and in vitro. AB - Hypoxic injury of islets is a major obstacle for encapsulated islet transplantation into the peritoneal cavity. To improve oxygen delivery to encapsulated islets, we integrated 20% of the oxygen carrier material, perfluorodecalin (PFD), in alginate capsules mixed with islets (PFD-alginate). Integration of PFD clearly improved islet viability and decreased reactive oxygen species production compared to islets encapsulated with alginate only (alginate) and naked islets exposed to hypoxia in vitro. In PFD-alginate capsules, HIF 1alpha expression was minimal, and insulin expression was well maintained. Furthermore, the best islet function represented by glucose-stimulated insulin secretion was observed for the PFD-alginate capsules in hypoxic condition. For the in vivo study, the same number of naked islets and encapsulated islets (alginate and PFD-alginate) was transplanted into streptozotocin-induced diabetic mice. Nonfasting blood glucose levels and the area under the curve for glucose based on intraperitoneal glucose tolerance tests in the PFD-alginate group were lower than in the alginate group. The harvested islets stained positive for insulin in all groups, but the ratio of dead cell area was 4 times higher in the alginate group than in the PFD-alginate group. In conclusion, integration of PFD in alginate microcapsules improved islet function and survival by minimizing the hypoxic damage of islets after intraperitoneal transplantation. PMID- 29330945 TI - Cyclosporine A induces endothelin-converting enzyme-1: Studies in vivo and in vitro. AB - AIM: Cyclosporine A (CsA) induces renal vasoconstriction and hypoxia and enhances the expression of endothelin-1 (ET-1) pro-hormone (pre-pro-ET-1), plausibly leading to a feed-forward loop of renal vasoconstriction, hypoxia and enhanced synthesis of the potent vasoconstrictor ET-1. Endothelin-converting enzyme (ECE) 1 cleaves big endothelin to generate endothelin (ET)-1 and is upregulated by hypoxia via hypoxia-inducible factor (HIF). We hypothesized that in addition to the direct induction of ET-1 synthesis, CsA might also intensify renal ECE-1 expression, thus contributing to enhanced ET-1 synthesis following CsA. METHODS: CsA was administered to Sprague Dawley rats (120 mg/kg/SC) for 4 days, and renal HIF and ECE-1 expression were assessed with Western blots and immunostaining. Human umbilical vein endothelial cells (HUVEC) and proximal tubular cell line (HK 2) were subjected to CsA, and ECE-1 induction was evaluated using real-time mRNA PCR and Western blots. RESULTS: Cyclosporine A intensified renal parenchymal ECE 1 expression in the rat kidney, particularly in distal nephron segments, along with renal hypoxia (detected by pimonidazole adducts) and HIF expression, in line with our recent observations showing episodic hypoxia in mice subjected to CsA. Furthermore, in cultured normoxic HUVEC and HK-2 cells, CsA dose-dependently induced both pre-pro-ET-1 and ECE-1 mRNA and protein expression, with enhanced ET 1 generation. CONCLUSION: CsA induces ECE-1 via both hypoxic and non-hypoxic pathways. ECE-1 may contribute to increased renal ET-1 generation following CsA, participating in a feed-forward loop of renal parenchymal hypoxia and ET synthesis. PMID- 29330946 TI - Skull Size and Biomechanics are Good Estimators of In Vivo Bite Force in Murid Rodents. AB - Rodentia is a species-rich group with diversified modes of life and diets. Although rodent skull morphology has been the focus of a voluminous literature, the functional significance of its variations has yet to be explored in live animals. Myomorphous rodents, including murids, have been suggested to represent "high-performance generalists." We measured in vivo bite force in 14 species of wild and lab-reared murid rodents of various sizes and diets to investigate potential morphofunctional differences between them. We dissected their skulls and computed a biomechanical model to estimate bite force. We first tested if our model allowed good estimation of in vivo data. Then, using morphological, in vivo and estimated bite force data in a phylogenetic context, we aimed to find the drivers of bite force differences among species. Estimated and in vivo bite forces were strongly correlated, which indicates that (a) biomechanical models allow a good estimation of real performance, and that (b) size and muscular changes (increased mass, fiber length, and PCSA) are the main drivers of bite performance differences. Myomorphous rodents, therefore, may have evolved high bite force through a combination of changes in size and musculature, which gave them a great versatility in their ability to process food. We found mixed results at the intraspecific level, with only some species displaying a good fit between estimated and in vivo measurements. We suggest that limited variation in size and muscular organization, and increased behavioral variation might decrease the precision of bite force estimates within species. Anat Rec, 301:256-266, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330947 TI - Dietary Correlates of Primate Masticatory Muscle Fiber Architecture. AB - Analyses of masticatory muscle architecture-specifically fascicle length (FL; a correlate of muscle stretch and contraction speed) and physiological cross sectional area (PCSA; a correlate of force)-reveal soft-tissue dietary adaptations. For instance, consumers of large, soft foods are expected to have relatively long FL, while consumers of obdurate foods are expected to have relatively high PCSA. Unfortunately, only a few studies have analyzed these variables across large primate samples-an order of particular interest because it is our own. Previous studies found that, in strepsirrhines, force variables (PCSA and muscle masses; MM) scale with isometry or slight positive allometry, while the body size corrected FL residuals correlate with food sizes. However, a study of platyrrhines using different methods (in which the authors physically cut muscles between fascicles) found very different trends: negative allometry for both the stretch and force variables. Here, we apply the methods used in the strepsirrhine study (chemical dissection of fascicles to ensure full length measurements) to reevaluate these trends in platyrrhines and extend this research to include catarrhines. Our results conform to the previous strepsirrhine trends: there is no evidence of negative allometry in platyrrhines. Rather, in primates broadly and catarrhines specifically, MM and PCSA scale with isometry or positive allometry. When examining size-adjusted variables, it is clear that fascicle lengths (especially those of the temporalis muscle) correlate with diet: species that consume soft, larger, foods have longer masticatory fiber lengths which would allow them to open their jaws to wider gape angles. Anat Rec, 301:311-324, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330948 TI - Inferring the Diets of Extinct Giant Lemurs from Osteological Correlates of Muscle Dimensions. AB - The jaw adductor muscles of extinct mammals are often reconstructed to elucidate paleoecological relationships and to make broad comparisons among taxa. Muscle lever arms, bite load arms, muscle dimensions, and gape are often also reconstructed to better understand feeding. Several different approaches to these and related goals are discussed here. A protocol for reconstructing muscle dimensions and bite force using biomechanically informative skull measurements and osteological proxies of muscle dimensions is described and applied to a case study of subfossil Malagasy lemurs. The results of this case study show that most subfossil lemurs emphasized the masseter and medial pterygoid muscles over the temporalis. This supports the inference that these extinct lemurs depended heavily on tough food like leaves. Exceptions include signals of hard-object feeding in Archaeolemur that vary between A. majori and A. edwardsi. Reconstructions of soft-tissue and function are important for understanding past ecological relationships. Even those based on well-supported osteological proxies from extant analogues have limitations for making precise inferences. Anat Rec, 301:343-362, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330949 TI - Functional Morphology of Mimetic Musculature in Primates: How Social Variables and Body Size Stack up to Phylogeny. AB - Mammalian skeletal muscle is influenced by the functional demands placed upon it. Functional morphology of facial expression musculature, or mimetic musculature, is largely unknown. Recently, primate mimetic musculature has been shown to respond to demands associated with social factors. Body size has also been demonstrated to affect many aspects of primate functional morphology and evolutionary morphology. The present study was designed to further examine the role of social variables and body size in influencing the morphology of primate mimetic musculature using a broad phylogenetic range of primates, primates with varying body sizes, and those that exploit differing time of day activity cycles and social group sizes. Gross data on mimetic musculature morphology were gathered from tarsiers (Tarsius bancanus), slender lorises (Loris tardigradus), ring-tailed lemurs (Lemur catta), crowned lemurs (Eulemur coronatus), black lemurs (E. macaco), owl monkeys (Aotus trivirgatus), and howler monkeys (Alouatta caraya) and compared to previous results from chimpanzees (Pan troglodytes), gibbons and siamangs (hylobatids), rhesus macaques (Macaca mulatta), Sulawesi macaques (M. nigra), common marmosets (Callithrix jacchus), and greater bushbabies (Otolemur spp.). Mimetic muscle presence/absence was observed and recorded. Results revealed that phylogenetic position determines the overall mimetic muscle groundplan, with anthropoids having a high number of muscles in the superciliary and midface regions, strepsirrhines having a high number of muscles in the external ear region, and tarsiers displaying an intermediate condition. Within these broad taxonomic categories body size had an effect on mimetic musculature, while time of day activity and social group size had smaller effects. Anat Rec, 301:202-215, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330950 TI - Comparative Anatomy of Bat Jaw Musculature via Diffusible Iodine-Based Contrast Enhanced Computed Tomography. AB - Noctilionoid bats exhibit an extraordinary array of cranial specializations that match diverse diets, including variation in jaw musculature physiological cross sectional areas (PCSA), lever arms, and relative contribution to bite force. Although previous research in this group has linked variation in skull shape and muscle mechanics to biting performance, there are still important gaps about the anatomical underpinnings of noctilionoid dietary adaptations, including the degree of compartmentalization of the jaw musculature, and whether and how muscle attachment sites have evolved across noctilionoid species that specialize on derived diets. Here, we paired dissections with Diffusible Iodine-based Contrast Enhanced Computed Tomography (diceCT) scanning in a comparative anatomical study of the jaw musculature of 12 noctilionoid species that span all diets found within the clade. We evaluated changes in jaw muscle attachments across species, identified differences in muscle compartments, examined scaling relationships, and compared the power of diceCT and dissections to generate morphological data. We found that diceCT enables more detailed investigation of muscle compartments and generates greater PCSA values, but these are strongly correlated with estimates from dissections. Jaw muscle origin and insertion sites are relatively conserved across noctilionoids when compared to other species-rich and ecologically-diverse mammalian groups. However, we found interspecific differences in the degree of separation of the m. masseter, and in the scaling relationships of different jaw muscles with body mass, both of which might be associated with diet and feeding behavior specialization. Our study highlights an unexplored diversity in the compartmentalization and fiber architecture of bat jaw muscles. Anat Rec, 301:267-278, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330952 TI - Jaw-Muscle Fiber Architecture and Leverage in the Hard-Object Feeding Sooty Mangabey are not Structured to Facilitate Relatively Large Bite Forces Compared to Other Papionins. AB - Numerous studies have sought to link craniofacial morphology with behavioral ecology in primates. Extant hard-object feeders have been of particular interest because of their potential to inform our understanding about the diets of early fossil hominins. Sooty mangabeys (Cercocebus atys) are hard-object feeders that frequently generate what have been described as audibly powerful bites at wide jaw gapes to process materially stiff and hard seeds. We address the hypothesis that sooty mangabeys have features of the masticatory apparatus that facilitate this feeding behavior by comparing fiber architecture and leverage of the masseter and temporalis muscles between sooty mangabeys and three papionin primates that do not specialize on hard objects. Contrary to predictions, sooty mangabeys do not have relatively larger muscle physiologic cross-sectional areas or weights compared to other papionins, nor do they consistently display improved leverage. In this regard, sooty mangabeys differ in their morphology from other hard-object feeders such as tufted capuchins. However, males of all four papionin species converge on a shared pattern of relatively longer anterior superficial masseter fibers compared with female conspecifics, suggesting that males are likely prioritizing muscle stretch to improve gape performance as part of a behavioral repertoire that includes agonistic social interactions and intense male-male competition. These findings strengthen support for the hypothesis that gape display behaviors can exert a strong selective influence throughout the musculoskeletal masticatory apparatus. Results also raise questions about the morphological suitability of extant cercopithecines as models for interpreting feeding behavior and diet in fossil hominins with limited jaw gape capacity. Anat Rec, 301:325-342, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330953 TI - Jaw-Dropping: Functional Variation in the Digastric Muscle in Bats. AB - Diet and feeding behavior in mammals is strongly linked to the morphology of their feeding apparatus. Cranio-muscular morphology determines how wide, forcefully, and quickly the jaw can be opened or closed, which limits the size and material properties of the foods that a mammal can eat. Most studies of feeding performance in mammals have focused on skull form and jaw muscles involved in generating bite force, but few explore how jaw abduction is related to feeding performance. In this study, we explored how the morphology of the digastric muscle, the primary jaw abducting muscle in mammals, and its jaw lever mechanics are related to diet in morphologically diverse noctilionoid bats. Results showed that insectivorous bats have strong digastric muscles associated with proportionally long jaws, which suggests these species can open their jaws quickly and powerfully during prey capture and chewing. Short snouted frugivorous bats exhibit traits that would enable them to open their jaws proportionally wider to accommodate the large fruits that they commonly feed on. Our results support the hypothesis that digastric muscle and jaw morphology are correlated with diet in bats, and that our results may also apply to other groups of mammals. Anat Rec, 301:279-290, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330954 TI - Why Muscles Look and Act the Way They Do: Uncovering the Nexus Among Form, Function, Behavior, and Evolution. PMID- 29330955 TI - Intrinsic Constraints on the Diversification of Neotropical Cichlid Adductor Mandibulae Size. AB - The diversification of functional traits may be constrained by intrinsic factors, such as structural, mechanical, developmental, or physiological limitations. We explored the biomechanical and constructional constraints on the size of the major jaw closing muscles, the adductor mandibulae complex (AM), in a diverse clade of freshwater fish - the Neotropical cichlids. Using phylogenetic comparative methods, we contrasted patterns of size variation and diversification rates of three AM divisions with variables describing head size and biomechanical coefficients describing force and velocity transmission. We found that all three AM muscles examined were impacted by constructional constraints, namely, (1) the space available in the head (head length and width-all AMs), (2) competition with the eye (AM1 and AM2), (3) competition for space among the three major AM divisions (e.g., AM1 vs. AM3), and (4) potentially the shape of the lower jaw (AM2). Only AM2 size was significantly associated with lower jaw biomechanical coefficients, but opposite predictions based on force transmission (i.e., no compensation for low mechanical advantage). Diversification rates of the mass of the divisions of the AM were also not connected to the diversification rates of their biomechanical coefficients. Previously suggested compensation in AM mass for reduced force transmission among ram-feeding predators appears to be driven by overall body plan changes (lengthening of the head in elongate bodies) and only indirectly to biomechanical trade-offs. Strong constructional constraints on AM size likely limit potentially functional morphospace occupation, and highlight the highly integrated nature of ram-suction feeding functional adaptations in Neotropical cichlids. Anat Rec, 301:216-226, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330956 TI - Craniomandibular Variation in Phalangeriform Marsupials: Functional Comparisons with Primates. AB - Phalangeriform marsupials have often been compared with primates because of similarity in the range of external morphology, ecological niches, and body size between the two radiations. We explore morphological convergence in the masticatory anatomy of strepsirrhine primates and phalangeriforms, through osteological measurements of the mandible and facial skeleton, and through dissection of the masticatory musculature, presenting new data on the arrangement and proportions of jaw adductors in phalangeriforms. Phalangeriforms and primates have a large number of shape differences in mandibular morphology. Despite these differences in shape on phylogenetic lines, dietary groups used to pool species of phalangeriforms and strepsirrhines also differed from each other in a range of shape variables. Notably, the striped possum (Dactylopsila), previously described as convergent with the aye-aye (Daubentonia), shares a number of features of mandibular shape with Daubentonia, and the exudate-feeding sugar-glider, Petaurus, shares shape features with gummivorous strepsirrhines. Petaurus also has long-fibered jaw adductors for its body mass, as would be expected for a species with a requirement for large gape. Phalangeriform species on the frugivore-folivore continuum were less clearly comparable to strepsirrhine species with similar diets. There are a number of significant dietary contrasts in osteological measurements, but in the masticatory muscles phalangeriforms did not meet all expectations based on available dietary data, highlighting the possible complexity of dietary adaptation in phalangeriform folivores. Anat Rec, 301:227-255, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330951 TI - Dynamic Musculoskeletal Functional Morphology: Integrating diceCT and XROMM. AB - The tradeoff between force and velocity in skeletal muscle is a fundamental constraint on vertebrate musculoskeletal design (form:function relationships). Understanding how and why different lineages address this biomechanical problem is an important goal of vertebrate musculoskeletal functional morphology. Our ability to answer questions about the different solutions to this tradeoff has been significantly improved by recent advances in techniques for quantifying musculoskeletal morphology and movement. Herein, we have three objectives: (1) review the morphological and physiological parameters that affect muscle function and how these parameters interact; (2) discuss the necessity of integrating morphological and physiological lines of evidence to understand muscle function and the new, high resolution imaging technologies that do so; and (3) present a method that integrates high spatiotemporal resolution motion capture (XROMM, including its corollary fluoromicrometry), high resolution soft tissue imaging (diceCT), and electromyography to study musculoskeletal dynamics in vivo. The method is demonstrated using a case study of in vivo primate hyolingual biomechanics during chewing and swallowing. A sensitivity analysis demonstrates that small deviations in reconstructed hyoid muscle attachment site location introduce an average error of 13.2% to in vivo muscle kinematics. The observed hyoid and muscle kinematics suggest that hyoid elevation is produced by multiple muscles and that fascicle rotation and tendon strain decouple fascicle strain from hyoid movement and whole muscle length. Lastly, we highlight current limitations of these techniques, some of which will likely soon be overcome through methodological improvements, and some of which are inherent. Anat Rec, 301:378-406, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330957 TI - Behavioral Correlates of Cranial Muscle Functional Morphology. AB - This issue of the Anatomical Record is the first of a two-volume set that focuses on new investigations into behavioral correlates of muscle functional morphology. Much of the research on functional morphology and adaptation to specific functional niches focuses on the shapes of hard-tissues-bones and teeth. Investigations into soft-tissue anatomy tend to be predominantly descriptive with only brief allusion to ontogenetic or evolutionary origins of structures. When muscles are included in analyses of functional systems, their function tends to be oversimplified-usually considered a simple force vector connecting two osteological points, with the force treated as a constant derived from some simple calculation of muscle size. The goal of these special issues is to present a series of studies that take a more elaborate look at how muscles can be viewed from a functional perspective in studies searching for morphological correlates of behavior. This first volume focuses on the behavioral correlates of cranial muscles-starting with a paper about the mimetic musculature of primates and ending with a series of papers on the masticatory muscles of many lineages of vertebrates. The next issue of the Anatomical Record (March 2018) includes our papers on the behavioral correlates of postcranial muscles. Taken together, we hope you agree that this series presents valuable insights into these form/function relationships using both traditional approaches+ and cutting-edge techniques. Anat Rec, 301:197-201, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330958 TI - Do Muscles Constrain Skull Shape Evolution in Strepsirrhines? AB - Despite great interest and decades of research, the musculoskeletal relationships of the masticatory system in primates are still not fully understood. However, without a clear understanding of the interplay between muscles and bones it remains difficult to understand the functional significance of morphological traits of the skeleton. Here, we aim to study the impacts of the masticatory muscles on the shape of the cranium and the mandible as well as their co variation in strepsirrhine primates. To do so, we use 3D geometric morphometric approaches to assess the shape of each bone of the skull of 20 species for which muscle data are available in the literature. Impacts of the masticatory muscles on the skull shape were assessed using non-phylogenetic regressions and phylogenetic regressions whereas co-variations were assessed using two-blocks partial least square (2B-PLS) and phylogenetic 2B-PLS. Our results show that there is a phylogenetic signal for skull shape and masticatory muscles. They also show that there is a significant impact of the masticatory muscles on cranial shape but not as much as on the mandible. The co-variations are also stronger between the masticatory muscles and cranial shape even when taking into account phylogeny. Interestingly, the results of co-variation between the masticatory muscles and mandibular shape show a more complex pattern in two different directions to get strong muscles associated with mandibular shape: a folivore way (with the bamboo lemurs and sifakas) and a hard-object eater one (with the aye aye). Anat Rec, 301:291-310, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330959 TI - Non-Destructive Determination of Muscle Architectural Variables Through the Use of DiceCT. AB - The fascicular architecture of skeletal muscle dictates functional parameters such as force production and contractile velocity. Muscle microarchitecture is typically determined by means of manual dissection, a technique that is inherently destructive to specimens. Furthermore, fascicle lengths and pennation angles are commonly assessed at only a limited number of sampling sites per muscle. We present the results of a digital technique to non-destructively assess muscle architectural variables for three jaw-adductor muscles within a specimen of the cercopithecine primate Macaca fascicularis (crab-eating macaque). The specimen is first subjected to a contrast-enhanced staining protocol to increase the density of internal soft tissues. High-resolution uCT scans are then collected and segmented to isolate individual muscles. A textural orientation algorithm is then applied to each muscle volume to reconstruct constituent muscle fascicles in three dimensions. Using this technique, we report muscle volume, fascicle length, angle of pennation, and physiological cross-sectional area (PCSA) for each muscle. These data are compared to results collected using traditional dissection of the contralateral muscles. Reconstructions of muscle volume and pennation angle closely correspond to the dissection results. The degree of similarity between measurements of fascicle length and PCSA varies between muscles, with temporalis demonstrating the greatest disparity between techniques; likely reflecting the complex geometry and fascicular arrangement of this muscle. The described technique samples a much larger number of fascicles than had previously been possible and non-destructively investigates the internal architecture of preserved specimens. We conclude that this approach demonstrates great potential for quantifying muscle internal architecture. Anat Rec, 301:363 377, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29330960 TI - The Anatomical Record Flexes Its Muscle With a Special Issue Examining Behavioral Adaptations in Muscle Functional Morphology. PMID- 29330961 TI - Clinical value of 4-hour delayed gadolinium-Enhanced 3D FLAIR MR Images in Acute Vestibular Neuritis. AB - OBJECTIVE: To investigate the clinical significance of 4-hour delayed-enhanced 3.0 Tesla three-dimensional (3D) fluid-attenuated inversion recovery (FLAIR) magnetic resonance (MR) imaging in acute vestibular neuritis. STUDY DESIGN: A prospective observational study. METHODS: Twenty-nine vestibular neuritis patients were enrolled between January 2017 and June 2017. Vestibular function tests, comprising the caloric and video head impulse tests and vestibular-evoked myogenic potential measurements, were performed. Precontrast, 10-minute, and 4 hour delayed-enhanced 3D-FLAIR MR images using double-dose IV gadolinium were obtained. After laterality and extent of inner ear enhancement were defined, the patients were divided into groups based on the patterns of enhancement, and clinical parameters were analyzed according to the groups. RESULTS: Twenty patients (20 of 29, 69.0%) had obviously asymmetric enhancement of the affected inner ear structures on 4-hour delayed images, whereas only three patients (10.3%) had marked enhancement on 10-minute delayed images. The duration of spontaneous nystagmus (DurSN) was significantly longer in the patients with enhancement, especially with enhancement of the whole inner ear, including the vestibule and semicircular canals (P < 0.033). Spontaneous nystagmus resolved within 12 days in patients without laterality of enhancement, and within 16 days in ipsilesional enhancement confined to the inner auditory canal and fundus. Other results of vestibular function tests did not reveal any significant associations with MR enhancement. CONCLUSIONS: Contrast enhancement of the vestibular nerve and inner ear structures can be identified on 4-hour delayed enhanced 3T 3D-FLAIR MR images in acute vestibular neuritis. The extent of inner ear enhancement may be associated with the DurSN. LEVEL OF EVIDENCE: 4. Laryngoscope, 1946-1951, 2018. PMID- 29330962 TI - Skin Conformal Polymer Electrodes for Clinical ECG and EEG Recordings. AB - Preparation-free and skin compliant biopotential electrodes with high recording quality enable wearables for future healthcare and the Internet of Humans. Here, super-soft and self-adhesive electrodes are presented for use on dry and hairy skin without skin preparation or attachment pressure. The electrodes show a skin contact impedance of 50 kOmega cm2 at 10 Hz that is comparable to clinical standard gel electrodes and lower than existing dry electrodes. Microstructured electrodes inspired by grasshopper feet adhere repeatedly to the skin with a force of up to 0.1 N cm-2 without further attachment even during strong movement or deformation of the skin. Skin compliance and adhesive properties of the electrodes result in reduction of noise and motion artifacts superior to other dry electrodes reaching the performance of commercial gel electrodes. The signal quality is demonstrated by recording a high-fidelity electrocardiograms of a swimmer in water. Furthermore, an electrode with soft macropillars is used to detect alpha activity in the electroencephalograms from the back of the head through dense hair. Compared to gel electrodes, the soft biopotential electrodes are nearly imperceptible to the wearer and cause no skin irritations even after hours of application. The electrodes presented here could combine unobtrusive and long-term biopotential recordings with clinical-grade signal performance. PMID- 29330963 TI - Metal-organic framework based in-syringe solid-phase extraction for the on-site sampling of polycyclic aromatic hydrocarbons from environmental water samples. AB - In-syringe solid-phase extraction is a promising sample pretreatment method for the on-site sampling of water samples because of its outstanding advantages of portability, simple operation, short extraction time, and low cost. In this work, a novel in-syringe solid-phase extraction device using metal-organic frameworks as the adsorbent was fabricated for the on-site sampling of polycyclic aromatic hydrocarbons from environmental waters. Trace polycyclic aromatic hydrocarbons were effectively extracted through the self-made device followed by gas chromatography with mass spectrometry analysis. Owing to the excellent adsorption performance of metal-organic frameworks, the analytes could be completely adsorbed during one adsorption cycle, thus effectively shortening the extraction time. Moreover, the adsorbed analytes could remain stable on the device for at least 7 days, revealing the potential of the self-made device for on-site sampling of degradable compounds in remote regions. The limit of detection ranged from 0.20 to 1.9 ng/L under the optimum conditions. Satisfactory recoveries varying from 84.4 to 104.5% and relative standard deviations below 9.7% were obtained in real samples analysis. The results of this study promote the application of metal-organic frameworks in sample preparation and demonstrate the great potential of in-syringe solid-phase extraction for the on-site sampling of trace contaminants in environmental waters. PMID- 29330964 TI - Spectrum of bone marrow pathology and hematological abnormalities in methylmalonic acidemia. AB - Patients with isolated methylmalonic acidemia (MMA) may present with a wide range of hematological complications including anemia, leukopenia, thrombocytopenia, and pancytopenia. However, there are very limited data on the development of hemophagocytosis or myelodysplasia in these patients. We report three patients with isolated MUT related MMA who presented with severe refractory pancytopenia during acute illness. Their bone marrow examination revealed a wide spectrum of pathology varying from bone marrow hypoplasia, hemophagocytosis to myelodysplasia with ring sideroblasts. We discuss their management and outcome. This report emphasizes the need for bone marrow examination in these patients with refractory or unexplained severe cytopenia, to confirm bone marrow pathology, and to rule out other diseases with similar clinical presentation for a better clinical outcome. PMID- 29330965 TI - Intrahepatic bile duct primary cilia in biliary atresia. AB - AIM: The etiopathogenesis of non-syndromic biliary atresia (BA) is obscure. The primary aim was to investigate intrahepatic bile duct cilia (IHBC) in BA at diagnosis and its correlation with clinical outcome. The secondary aim was to analyze IHBC in routine paraffin-embedded liver biopsies using conventional scanning electron microscopy (SEM). METHODS: Surgical liver biopsies taken at diagnosis from 22 BA infants (age range, 39-116 days) and from eight children with non-BA chronic cholestasis (age range, 162 days -16.8 years) were evaluated for IHBC by immunofluorescence (IF) and SEM. A minimum 18-month follow-up after surgery was available for all patients. RESULTS: By IF, cilia were present in 6/8 (75%) non-BA but only in 3/22 (14%) BA cases, and cilia were reduced or absent in 19/22 (86%) BA and 2/8 (25%) non-BA livers (P < 0.01). In BA, cilia presence was found to be associated with clearance of jaundice at 6-month follow-up (P < 0.05). However, high overall survival rates with native liver, >90% at 12 months, and >70% at 24 months post-surgery, were recorded regardless of cilia presence/absence at diagnosis. Electron microscopy was able to detect bile ducts and cilia in routine liver biopsies, revealing significant abnormalities in 100% BA livers. CONCLUSIONS: The presence of IHBC in BA livers at the diagnosis was associated with resolution of cholestasis, although was not predictive of short term survival with native liver. Scanning electron microscopy represents a powerful new tool to study routine liver biopsies in biliary disorders. Cilia dysfunction in BA pathogenesis and/or disease progression warrants further investigation. PMID- 29330966 TI - Static hyperinflation is associated with ventilatory limitation and exercise tolerance in adult cystic fibrosis. AB - INTRODUCTION: Lung hyperinflation is a potential mechanism limiting exercise tolerance. However, available data on the impact of static hyperinflation on exercise performance in adult cystic fibrosis are lacking. Furthermore, the relative contribution of both static and dynamic hyperinflation to exercise performance is unknown. OBJECTIVES: The aim of this study was to determine the impact of static hyperinflation on exercise tolerance and lung dynamics in adult cystic fibrosis. METHODS: Clinical data of 107 adult patients with cystic fibrosis, including pulmonary function, lung volumes and cardiopulmonary exercise from the Toronto Cystic Fibrosis database, were collected and analyzed. Patients were classified as having static hyperinflation with a residual volume to total lung capacity (RV/TLC) ratio of 30% or greater. RESULTS: Patients with static hyperinflation demonstrated a significant reduction in exercise performance [peak oxygen uptake (% predicted) 70 +/- 17 vs 80 +/- 17; P = .006] and were more likely to experience ventilatory limitation when exercising (Fisher's exact test P < .001). Correlation analysis showed significant relationships between measures of static hyperinflation [RV/TLC ratio (%)] and exercise performance [peak oxygen uptake (% predicted); r = -.38, P < .001] and dynamic hyperinflation (r = -.35, P < .001). Multiple linear regression showed that the contribution of static hyperinflation to exercise performance [peak oxygen uptake (% predicted)] was greater than that of airway obstruction (forced expiratory volume in 1 second). CONCLUSION: Clinicians working with this patient group in a pulmonary rehabilitation or health care setting may wish to consider using measures of static hyperinflation as end points to determine program or treatment efficacy. PMID- 29330968 TI - Correlation of dynamic contrast-enhanced MRI derived volume transfer constant with histological angiogenic markers in high-grade gliomas. AB - INTRODUCTION: To ascertain if the volume transfer constant (Ktrans ) derived from T1 dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) correlates with the immunohistological markers of angiogenesis in high-grade gliomas. METHODS: Fifty-one image-guided biopsy specimens in 34 patients with newly presenting high grade gliomas (grade III = 16; grade IV = 18) underwent preoperative imaging (conventional imaging and T1 DCE-MRI). We correlated vascular endothelial growth factor (VEGF) expression and the microvessel density (MVD) of MRI-guided biopsy specimens with the corresponding DCE-derived Ktrans . Histological sections were stained with VEGF and CD34, and examined under light microscopy. These histological and molecular markers of angiogenesis were correlated with the Ktrans of the region of interest corresponding to the biopsy specimen. RESULTS: The Ktrans showed a significant positive correlation with VEGF expression (rho = 0.582, P = 0.001) but not with MVD stained with CD34 antibody (rho = 0.328, P = 0.072). CONCLUSION: The Ktrans derived from DCE-MRI can reflect the VEGF expression of high-grade gliomas but not the MVD. PMID- 29330967 TI - The impact of bisphenol S on bovine granulosa and theca cells. AB - Bisphenol S (BPS) is an endocrine-disrupting chemical with multiple potential mechanisms of action, including as an oestrogen receptor agonist. BPS is increasingly used in plastics and thermal receipts as a substitute for bisphenol A, which has been phased out due to concerns about human health implications. The ability of BPS to alter female reproductive function in mammals has not been widely studied, despite the importance of normal hormone signalling for female reproduction. The aim of this study was to investigate how BPS (in a wide range of doses, including very low doses) affects granulosa cell and theca cell steroid hormone production and cell viability in the bovine. Granulosa cell oestradiol production was stimulated when cells were exposed to 100 MUM BPS under basal conditions, but there was no effect of BPS when cells were stimulated with follicle-stimulating hormone (FSH). Additionally, there was no effect of BPS on granulosa cell progesterone production or cell viability under basal or FSH stimulated conditions. BPS did not affect theca cell androstenedione or progesterone production, or theca cell viability under basal or luteinizing hormone-stimulated conditions. This study suggests for the first time that BPS may alter oestradiol production by bovine granulosa cells, albeit at a concentration that is unlikely to be physiologically relevant. Further studies are needed to determine the effects of BPS on the bovine oocyte and on other functions of follicular cells. PMID- 29330969 TI - Is salinity an obstacle for biological invasions? AB - Invasions of freshwater habitats by marine and brackish species have become more frequent in recent years with many of those species originating from the Ponto Caspian region. Populations of Ponto-Caspian species have successfully established in the North and Baltic Seas and their adjoining rivers, as well as in the Great Lakes-St. Lawrence River region. To determine if Ponto-Caspian taxa more readily acclimatize to and colonize diverse salinity habitats than taxa from other regions, we conducted laboratory experiments on 22 populations of eight gammarid species native to the Ponto-Caspian, Northern European and Great Lakes St. Lawrence River regions. In addition, we conducted a literature search to survey salinity ranges of these species worldwide. Finally, to explore evolutionary relationships among examined species and their populations, we sequenced the mitochondrial cytochrome c oxidase subunit I gene (COI) from individuals used for our experiments. Our study revealed that all tested populations tolerate wide ranges of salinity, however, different patterns arose among species from different regions. Ponto-Caspian taxa showed lower mortality in fresh water, while Northern European taxa showed lower mortality in fully marine conditions. Genetic analyses showed evolutionary divergence among species from different regions. Due to the geological history of the two regions, as well as high tolerance of Ponto-Caspian species to fresh water, whereas Northern European species are more tolerant of fully marine conditions, we suggest that species originating from the Ponto-Caspian and Northern European regions may be adapted to freshwater and marine environments, respectively. Consequently, the perception that Ponto-Caspian species are more successful colonizers might be biased by the fact that areas with highest introduction frequency of NIS (i.e., shipping ports) are environmentally variable habitats which often include freshwater conditions that cannot be tolerated by euryhaline taxa of marine origin. PMID- 29330971 TI - Pakistan's March Towards Universal Health Coverage. PMID- 29330970 TI - Gamma-glutamyl transferase activity as a predictive marker for severity of obstructive sleep apnea syndrome and concomitant hypertension. AB - BACKGROUND: Chronic intermittent hypia, inflammation and oxidative stress are involved in resultant obstructive sleep apnea syndrome (OSAS), which may affect numerous regulatory mechanisms that play a role in the regulation of blood pressure. Gamma-glutamyl transferase (GGT) is a novel marker in the prediction of cardiovascular risk. OBJECTIVE: The objective of this study was to investigate the correlation of serum levels of GGT with hypertension and the degree of the upper airway obstruction in subjects with OSAS. METHODS: A total of 270 subjects that met the inclusion criteria were enrolled in the study. The subjects were divided into four separate groups according to the apnea-hypopnea index (AHI) scores as the control group (AHI < 5), mild OSAS group (AHI 5-15), moderate OSAS group (AHI 16-30) and severe OSAS group (AHI >30). A further classification of the OSAS subjects was made in two groups based on the presence of hypertension. RESULTS: The study included 43 control individuals and 59 subjects with mild, 54 subjects with moderate and 114 subjects with severe OSAS. The serum levels of GGT were found to be significantly correlated with OSAS severity (control group: 18 +/- 3.3, mild OSAS: 23.6 +/- 7.3, moderate OSAS: 26.4 +/- 7.5 and severe OSAS: 39.8 +/- 12). Serum levels of GGT were found to be significantly higher in OSAS subjects with concomitant hypertension than in the group without associated hypertension (P < .05). The results showed that the adjusted mean GGT under OSA without hypertension (Madj = 28.76, SE = 0.71) was significantly lower than in cases with OSA with hypertension (Madj = 42.79, SE = 1.19). CONCLUSION: The present study indicated a strong correlation between high serum levels of GGT and concomitant hypertension in subjects with obstructive sleep apnea. This biomarker may be helpful in grading the severity of obstructive sleep apnea and correlated with hypertension in this population. PMID- 29330972 TI - Immunohistochemical Evaluation Of Oestrogen Receptors In Adenoid Cystic Carcinoma Of Salivary Gland. AB - Background: Oestrogen has a physiological role throughout the body including oral cavity. The effects are mediated by binding to two receptors in nucleus alpha and beta, which are ligand-activated transcription factors. The alpha receptors have a prognostic significance in cancer of breast while in Adenoid cystic carcinoma of salivary glands the results are inconsistent. This study was conducted to determine the oestrogen receptor Alpha staining in adenoid cystic carcinoma of salivary gland. Methods: Paraffin blocks of thirty cases of adenoid cystic carcinoma of salivary gland were retrieved and evaluated through immunohistochemistry by anti-oestrogen antibody clone 1D5.The intensity and proportion of nuclear staining was scored using Allred scoring system. Results: From total of thirty cases, 5 cases expressed as mild staining of oestrogen receptors using Allred scoring system. Three cases of cribriform and two cases from tubular pattern expressed positivity. In the case series selection of our study cohort there was no association seen in age, gender, site and histological type of tumour with the expression of oestrogen receptor. Conclusions: Role of oestrogen is well established in breast cancers, some of salivary gland adenoid cystic carcinoma also express these receptors and could be involved in the pathogenesis. Further studies are recommended to seek possible explanation of variable staining pattern observed in many other studies, and also to determine the possible therapeutic use of tamoxifen in such tumours. PMID- 29330973 TI - The Effect Of Sex Education And Life Skills For Preventive Sexual Risk Behaviours Among University Of Students In Thailand. AB - BACKGROUND: Currently, the problem of sexual risk behaviour of adolescents has increased worldwide, including Thailand. This study compared the effectiveness of promoting life skills to prevent sexual risk behaviours among university students in the Phayao Province of Thailand. METHODS: A quasi-experimental design was employed with a pre- and post-test study for a sample of freshmen university students. The students were then split into an intervention group comprised of 300 students, with a second group of 250 students from the same faculty as the control group. The intervention group participated in the integrated life skills model for preventing sexual risk behaviours and participatory learning. The educational activities included; lectures, brainstorming, group discussion, roleplaying, game simulations and naming experiences through six weekly life skills training sessions of 90 minutes each. Data were collected by self questionnaires and analysed using descriptive statistics and independent sample t testing. Three different time periods were examined using ANOVA repeated measures analysis of variance. RESULTS: Compared between the intervention and control groups determined that implementation of increased knowledge and improved life skills was statistically significant (p<0.001) in the intervention group. The intervention group also showed significantly improved communication skills and behavioural preventive measures towards sexual risk than the control group (p<0.001). CONCLUSIONS: The life skills model also effectively reduced the sexual risk behaviours of students at the university. Therefore, this program was beneficial for the development of strategies to increase self-efficacy and it should be integrated into the universities' curriculum. In the long-term sexual risk behaviour changes must be monitored for programme sustainability. PMID- 29330974 TI - Nucleic Acid Amplification Test For Detection Of West Nile Virus Infection In Pakistani Blood Donors. AB - BACKGROUND: The study was planned to determine the presence of West Nile Virus (WNV) infection in Pakistani blood donors, using Nucleic Acid Amplification Test (NAT). METHODS: The blood donors for study were selected on the basis of the standard questionnaire and routine screening results. Six donors were pooled using an automated pipettor and NAT for WNV was performed on Roche Cobas s 201 NAT system. The reactive pools were resolved in Individual Donation-NAT (ID-NAT) format and a sample from FFP bags of reactive donations was retrieved. NAT was again performed on retrieved plasma bag (RPB) sample to confirm the reactive donations. The donors were also recalled and interviewed about history of illness related to recent WNV infection. RESULTS: After serological screening of 1929 donors during the study period, 1860 donors were selected for NAT test for WNV detection. The mean age of the donors was 28+/-8.77 (range: 18-57 years). 1847 (99.3%) donors were male and 13 (0.7%) were female. NAT for WNV identified six initially reactive pools (0.32%). On follow-up testing with RPB samples, 4 donors (0.21%) were found confirmed reactive for WNV RNA (NAT yield of 1 in 465 blood donors). CONCLUSIONS: WNV is a threat to safety of blood products in Pakistan. A screening strategy can be implemented after a large-scale study and financial considerations. One of the reduced cost screening strategies is seasonal screening of blood donors for WNV, with pooling of samples. PMID- 29330975 TI - Emergency Inguinal Hernia Repair: Comparison Of Desarda's Versus Darning Technique. AB - BACKGROUND: Emergency inguinal hernia repair remains the commonest operation performed by general surgeons all over the world. The aim of this study was to compare the mean operative time, post-operative pain, wound infection and early recurrence between Desarda's and Darning emergency inguinal hernia repair. METHODS: This is a randomized controlled trial conducted at Jinnah Postgraduate Medical Centre, Karachi. A total of 186 patients of male gender between ages 20 60 years with incarcerated, obstructed and strangulated inguinal hernia were enrolled in the study. Patients with primary and recurrent inguinal hernias were excluded. All patients were randomized to Desarda group (n=93) and Darning group (n=93). RESULTS: Mean operative time in Desarda group was 55.53+/-6.81 minutes and mean operative time in darning group was 53.06+/-5.51 minutes (p-value 0.007). Mild to moderate pain was found insignificantly higher in Desarda group 75 (80.6%) as compared to Darning group 66 (71%) (p-value 0.170). Wound infection was found higher in Desarda group 18 (19.4%) as compared to darning group 9 (9.7%) (p-value 0.061). Recurrence was found significantly higher 15 (55.5%) in Darning group as compared to Desarda group 2 (7.4%) (p-value <0.001). CONCLUSIONS: No significant difference was observed in the postoperative pain, wound infection however, significant differences were observed in the mean operative time and recurrence rates. PMID- 29330976 TI - Ranitidine Can Potentiate The Prokinetic Effect Of Itopride At Low Doses- An In Vitro Study. AB - BACKGROUND: Gastroparesis and GERD occur concomitantly in 40 percent of the cases. Prokinetic drugs and acid blockers are employed as the main treatment modality. Ranitidine is an acid blocker with additional prokinetic activity and Itopride is a known prokinetic drug. This study was designed to observe the synergistic potentiating prokinetic effect of Ranitidine on itopride on isolated duodenum of rabbits. METHODS: Ranitidine (10-5-10-3) and itopride (10-6-10-5) were added in increasing concentrations to isolated duodenum of rabbits and contractions were recorded on PowerLab Data acquisition unit AHK/214. Cumulative dose response curves were constructed. The potentiating prokinetic effect of Ranitidine on itopride was seen by using a fixed dose of ranitidine and cumulatively enhancing doses of itopride on iWorx. RESULTS: Ranitidine and itopride produced a dose dependent reversible contraction of the isolated tissue of rabbits with ranitidine showing a max response of 0.124mV and itopride showing a maximum response of 0.131mV. Ranitidine was able to potentiate the prokinetic effect of itopride at low doses but at high dose the effect began to wane off. CONCLUSIONS: Ranitidine and itopride produce a statistically significant synergistic potentiating prokinetic effect at low doses in vitro. PMID- 29330977 TI - Effectiveness Of Horizontal Peer-Assisted Learning In Physical Examination Performance. AB - BACKGROUND: All students cannot be individually trained in physical examination skills due to faculty and time limitations. Peer-assisted learning (PAL) can solve this dilemma if it is used in undergraduate curriculum. Empirical effectiveness of horizontal peer-assisted learning model has not been reported previously. The objective of this study was to compare horizontal peer-assisted learning (PAL) with expert-assisted learning (EAL) in teaching of physical examination skills. METHODS: This is a randomized controlled study (Solomon four group design) carried out at a medical school. A total of 120 undergraduate year 5 students were randomized into two groups to undergo training in four areas of physical examination. Stratified random sampling technique was used. Group 1 was trained by EAL while Group 2 by PAL. Half students from both groups were given a pre-test to assess the testing effect. Both groups were given a post-test in the form of an OSCE. Independent samples t-test and paired sample t-test were used as tests of significance. RESULTS: Group 2 scored significantly higher than Group 1. There was significant difference (p=.000) in mean post-test scores of Group-1 (69.98+/-5.6) and Group-2 (85.27+/-5.6). Difference in mean scores was not significant (p=.977) between students who had taken the pre-test and those who had not. CONCLUSIONS: This study has implications in curriculum development as it provides quantitative evidence indicating that horizontal PAL as a learning strategy can actually replace, rather than augment, expert-assisted learning in teaching clinical skills to undergraduate students. PMID- 29330978 TI - Intramuscular Diclofenac Vs Periprostatic Lidocaine Injection For Controlling Pain Undergoing Transrectal Ultrasound Guided Prostatic Biopsy. AB - BACKGROUND: Transrectal ultrasound (TRUS) technique for getting prostatic tissue for histopathology is now the standard procedure for malignant lesions of the prostate and imperative diagnostic investigation of patients with clinical specks of prostatic neoplasia. During TRUS guided biopsy, pain control has been important issue therefore, highly potent analgesia before this procedure should be considered on high priority according to current census. Therefore, we compared intramuscular diclofenac injection with sensory blockade of injection lidocaine to abolish pain undergoing prostatic biopsy with TRUS technique. METHODS: Total 200 patients were selected for this study having raised PSA values and suspicious nodule on Digital Rectal Examination. These patients were segregated into two groups by randomization. Group "A" received intramuscular diclofenac and group "B" were infiltrated with lidocaine injection for sensory blockade. RESULTS: Patients in group A was having mean age of 64.5+/-5.8 years while for group B patients was 65.6+/-4.9 years (p=0.16). Both groups have statistically insignificant difference in their mean PSA values (p=0.24) and mean prostatic volume (p=0.22). The mean pain scores on visual analogue scale in groups A was 3.5+/-0.8 and in group B it was 2.4+/-0.8 (p<0.001). 60% group A patients reported with mild or no pain compared to 90% in group B. (p<0.001).. CONCLUSIONS: Local blockade with lidocaine injection has better pain control as compared to patients experienced pain with intramuscular diclofenac used for prostatic biopsy through TRUS technique.. PMID- 29330979 TI - Early Versus Delayed Laparoscopic Cholecystectomy For Acute Cholecystitis. AB - BACKGROUND: Laparoscopic cholecystectomy is considered the gold standard for the management of acute cholecystitis but controversy surrounds the timings of the surgery. Studies are available favouring both early and delayed laparoscopic cholecystectomy. The objective of this study was to compare early versus delayed laparoscopic cholecystectomy for acute cholecystitis. METHODS: This quasi experimental study included 180 patients irrespective of their age and sex presented at department of Surgery, Lahore General Hospital between January to December 2014 with a diagnosis of acute cholecystitis were assigned randomly to early laparoscopic cholecystectomy within 24 h of admission or to initial conservative treatment followed by delayed laparoscopic cholecystectomy, 6-12 weeks later. RESULTS: The mean operating time was 64.32 min vs. 58.24 min in the delayed group, conversion rate (early 15.5% vs. delayed 14.4%). The mean postoperative hospital stay was 1.67 days in the earlier group and 4.38 days in the delayed group. Overall mortality was zero. CONCLUSIONS: Early laparoscopic cholecystectomy for acute cholecystitis is safe, offering economic benefit of much shorter hospital stay and quick recovery. PMID- 29330980 TI - Comparison Of Efficacy Of Chloroquine And Artemether/Lumafantrine In Treating Vivax Malaria In Thall And Surrounding Area. AB - BACKGROUND: Fever is the main complaint in patients reporting to our hospital and the most common cause of fever in our set up is malaria. The aim of this study was to know about the clinical response, efficacy and resistance of vivax malaria to chloroquine in patients reporting to Thall Scouts Hospital. METHODS: All the adult male patients reporting to Thall Scouts Hospital with fever and other symptoms of malaria having slide positive vivax malaria were included in the study. Both thick and thin slide were used for the diagnosis and species determination of malaria. Age group of the patients was from 18-40 years old. The study was conducted for the period of two years. RESULTS: Total number of patients included in the study was 518. Of the 518 patients, 374 (72.2%) responded to chloroquine and the remaining 144 (27.8%) were given Arthemether/Lumafantrine combination. Having positive symptoms of malaria total 374 patients treated with chloroquine 171 (45.72%) were asymptomatic after 24 hours, 98 (26.2%) after 48 hours, 78 (20.86%), after 72 hours of treatment while 27 (7.22%) were found to be resistant to chloroquine. Of the 144 patients having positive malaria treated with Artemether/Lumafantrine 62 (43.06%) were asymptomatic after 24 hours, 65 (45.14%) after 48 hours, 13 (9.03%) after 72 hours while 4 (2.78%) had still positive symptoms of malaria. CONCLUSIONS: Vivax malaria in our set up is sensitive to both Chloroquine and Arthemether/Lumafantrine. As Chloroquine is a cheap and easily available drug, so it can be safely given to patients with vivax malaria. It will also decrease the total cost of the disease. PMID- 29330981 TI - Comparison Of Ziehl-Neelsen Based Light Microscopy With Led Fluorescent Microscopy For Tuberculosis Diagnosis: An Insight From A Limited Resource-High Burden setting. AB - BACKGROUND: Microscopy is the most widely used tool for Tuberculosis screening. Conventionally, Ziehl-Neelsen (ZN) staining has been the widely used for staining Acid-Fast Bacilli (AFB) but with the advent of Fluorescent staining, Auramine O stain is now being adapted as the preferred method for setups with high workload as it has the advantage of being less laborious, since bacteria fluoresce in front of a dark background and are easier to count. This study was performed to compare the efficiency of the two methods in a high-burden, limited resource setting to see the magnitude of diagnostic accuracy between ZN and Fluorescent Microscopy, using culture as the standard.. METHODS: Altogether 987 culturally confirmed cases were considered from the period 36 months during January 2011 to December 2013 and data were compiled from the records maintained at the Provincial Tuberculosis Reference Laboratory at Ojha Institute of Chest Diseases, Dow University of Health Sciences, Karachi. The results from 523 cases examined using ZN and 464 cases using Fluorescent staining method were compared for diagnostic accuracy on the basis of Mycobacterial culture results. Smears are prepared from the clinical samples obtained from presumptive tuberculosis patients. RESULTS: The results of ZN method showed 94.23% [95% CI 91.32-96.39%] sensitivity and 84.91% [95% CI 78.38-90.08%] specificity. While FM showed a sensitivity of 97.15% [95% CI 94.82-98.63%] and specificity of 83.19% [95% CI 74.99-89.56%].. CONCLUSIONS: The results showed that Fluorescent microscopy was slightly more sensitive than ZN light Microscopy, while specificity of both the methods were comparable. PMID- 29330982 TI - Assessment Of Safety Levels In Operation Rooms At Two Major Tertiary Care Public Hospitals Of Karachi. "Safe Surgery Saves Life". AB - BACKGROUND: The objectives of this study are to determine the knowledge and attitude towards surgical safety among the health care professionals including surgeons, anaesthetist, hospital administrators, and operation room personnel and raise awareness towards the importance of safe surgery. METHODS: A pilot cross- sectional study of 543 healthcare providers working in the operating rooms and the surgical intensive care units was conducted in two tertiary care hospitals, within a study period of one month. A structured questionnaire was constructed and an informed verbal consent was taken. The questionnaire was then distributed; data collected and analysed on SPSS 20.0.. RESULTS: A total of 543 respondents participated in the study out of which there were 375 (69%) men and 168 (31%) women. The ages ranged between 23-58 years, mean 40.5+/-24.74. There were110 (20.25%) surgeons, 58 (10.68%) anaesthetist, 132 (24.30%) trainees, 125 (23.02%) technicians, and were 118 (21.73%) nurses. The question regarding briefing operation room personnel is important for patient safety was agreed by 532 (98%) respondents. Amongst the respondents, 239 (44%) did not feel safe to be operated in their own setup. Team communication improvement through the check list implementation was agreed by 483 (89%) respondents. 514 (94.7%) opted for the checklist to be used while they are being operated. That operation room personnel frequently disregard established protocols was agreed by 374 (69%) respondents. 193 (35.54%) of the respondents stated that it is difficult for them to speak up in the OR if they perceive a problem with patient care. CONCLUSIONS: Operation room personnel were not aware of several important areas related to briefing, communication, safety attitude, following standard protocols and use of WHO Surgical Safety check list. A pre-post intervention study should be conducted after formal introduction of the Checklist. Successful implementation will require taking all stake holders on board and rigorous training workshops, reinforcing and revisiting. PMID- 29330983 TI - Ultrasound And Supine Chest Radiograph In Road Traffic Accident Patients: A Reliable And Convenient Way To Diagnose Pleural Effusion. AB - BACKGROUND: Portable bed side ultrasound and supine chest radiograph of 80 traumatic patients excluding very clinically unstable patients who subsequently underwent CT scan chest was done for traumatic effusion showing that ultrasound had a higher sensitivity than CXR, 88.23% and 77.94%, respectively, and a similar specificity of 100% and 100%, respectively. Objective of the study is to compare the diagnostic accuracy of high resolution ultrasound and supine chest x-ray in detection of pleural effusion in road traffic accident patients keeping plain CT chest as gold standard. METHODS: This study was conducted in PIMS and PAEC General Hospital, Islamabad from 1st January to 15th December 2015. The current study examined total of 80 trauma (blunt and penetrating) patients coming to emergency departments of both hospitals specifically those who had road traffic accident history. Their portable bed side ultrasound and supine chest radiograph were performed for assessing pleural effusion and subsequently CT scan chest was done for confirmation as it's a gold standard. RESULTS: Using CT findings as gold standard the sensitivity, specificity, positive predictive value and negative predictive value was assessed for both ultrasonography and chest radiography and found to be 88.23%,100%, 100%, 40% and 77.94%, 100%, 100%, 55.55% respectively with diagnostic accuracy of ultrasound 90% as compared to 81.25% for supine chest x-rays when compared with gold standard. CONCLUSIONS: Ultrasound and chest x-ray can be used as a useful and suitable adjunct to CT in road traffic accident patients as these are easily available, non-invasive, no contrast required, can be performed on bed side and carries no or little radiation risk. PMID- 29330984 TI - Polydioxanone Versus Polypropylene Closure For Midline Abdominal Incisions. AB - BACKGROUND: Midline laparotomy is the most common technique of abdominal incisions because it is simple, provides adequate exposure to all four quadrants, and is rapid to open. A major problem after midline laparotomy remains the adequate technique of abdominal fascia closure. This study was conducted to see the role of Polydioxanone and Prolene for midline abdominal closure in terms of postoperative wound infection and wound pain. METHODS: This study was carried out at surgical unit II, Federal Government Services Hospital Islamabad. Patients were equally divided in two groups, i.e., A and B. Groups A and B patients undergone midline abdominal closure with Polydioxanone number 1 and Polypropylene number 1 sutures respectively. RESULTS: Total 620 patients were included in this study. Post-operative wound pain score according to Visual analogue scale (VAS) was compared in terms of no pain (0), mild pain (1-3), moderate pain (4-6), severe pain (7-9). In group A (Polydioxanone), the frequency and percentages of no, mild, moderate and severe pain were 101 (32.6%), 95 (30.6%), 81 (26.1%) and 33 (10.6%) respectively, where as in group B (polypropylene) it was 82 (26.5%), 43 (13.9%), 59 (19%) and 126 (40.6%) respectively. Similarly, the frequency and percentages of post-operative wound infection in group A (Polydioxanone) and group B (polypropylene) was 105 (33.9%) and 208 (67.1%) respectively. CONCLUSIONS: Polydioxanone results in less wound pain and wound infection when compared to Polypropylene. PMID- 29330985 TI - Medical Students' Perceptions Of Their Learning Environment At Lahore Medical And Dental College Lahore. AB - BACKGROUND: The present study was designed to assess medical students' perceptions of their learning environment at Lahore Medical and Dental College, Lahore. METHODS: It was a crosssectional descriptive study conducted at Lahore Medical and Dental College, Lahore. Five hundred and thirty-three students participated in this study. A questionnaire was used as a study tool, comprising of demographic information and the 'Dundee Ready Education Environment Measure' (DREEM) inventory. Data was entered and analyzed using SPSS 21 package. A comparison of scores between different MBBS classes was done by using ANOVA. Comparison of scores between gender and high school education was done by using Mann-Whitney U tests. RESULTS: Study population included 62% females and 32% males. About 58% of the participants were between 18-21 years and 42% were between 22-25 years of age. The mean total DREEM score was 120.27/200. The mean score of the domains: 'Students' perceptions of learning' was 28.31/48, 'Students' perceptions of teaching' was 26.92/44, 'Students' academic self- perceptions' was 21.37/32, 'Students' perceptions of atmosphere' was 27.72/48, and 'Students' social selfperceptions' was 16.40/28. Total DREEM and its subclasses score was significantly higher in F. Sc. students than the students with A level/American board (p-value <0.001). When DREEM scores were analyzed according to gender, perceptions of both male and female were positive. Age had no significant bearing on the total DREEM scores or scores in its subclasses. CONCLUSIONS: Overall perceptions or experiences of the MBBS students of their learning environment at Lahore medical and Dental College, Lahore were more positive. PMID- 29330986 TI - Use Of Psychoactive Drugs Among Medical Undergraduates In Abbottabad. AB - BACKGROUND: Psychoactive substance abuse is prevalent among medical undergraduates of Pakistan, India & Western countries which can adversely affect the physical & psychological grooming of a medical undergraduate thus threatening to compromise their role as future physicians & health-care providers in the society. The objective of the present cross-sectional study was to explore the prevalence and patterns of psychoactive substance/drug consumption among undergraduate students of a public sector medical college in Abbottabad. METHODS: Seven hundred and eighty participants after informed consent were requested to fill a questionnaire seeking information about their demographics, patterns & behaviours regarding ten common psychoactive substances of abuse including (Cigarettes, Benzodiazepines, naswar, cannabis, alcohol, amphetamine, opium, cocaine, heroin & organic solvents). RESULTS: Overall students who responded were 698 (89.48%). One hundred and fifty (21.49%) admitted to the use of a psychoactive substance in past or at present. Majority users (71.33%) were males. Overall (81.33%) users were living in hostel or a rented apartment. Substance abuse was more prevalent among senior students, i.e., 30.06% & 24.24% in 4th year & final year MBBS respectively. Majority of the consumers, i.e., 93 (62%) were falling in an age group between 15-20 years. Main reasons behind substance abuse were: psychological stress (49.33%) and pleasure seeking (42.67%). Substances/drugs used by students in order of preference were Cigarettes 115 (76.67%), Benzodiazepines 48 (32%), naswar 42 (28%), Cannabis 41 (27.33%), Alcohol 24 (16%), Amphetamine 22 (14.67%), Opium 15 (10%), Cocaine 14 (9.33%), Heroin 11 (7.33%) & Organic solvents 05 (3.33%). Use of more than one substance was observed in 70 (46.67%) students. CONCLUSIONS: It is concluded that prevalence of cigarette smoking, naswar, benzodiazepines, cannabis & alcohol is high among medical undergraduates in Abbottabad which is a matter of concern. Efforts are needed to create better awareness among them about the hazards of substance abuse on their health, upcoming professional career and ailing humanity under their care. PMID- 29330987 TI - Pattern Of Dyslipidaemia And Its Association With Hypovitaminosis D In Type 2 Diabetes Mellitus. AB - BACKGROUND: Macrovascular atherosclerosis is an important long-term complication of type 2 diabetes mellitus. Concurrent dyslipidaemia acts as an additional risk factor for these complications. Hypovitaminosis D has been associated with adverse cardiovascular events. These modifiable risk factors of cardiovascular disease are inter-related. In the presence of an increasing incidence of type 2 diabetes mellitus and its associated metabolic abnormalities and widespread vitamin D deficiency in Pakistan, this association needs to be investigated. The purpose of our study was to determine the pattern of dyslipidaemia and its association with low vitamin D levels in South Asian diabetics. METHODS: The study was designed as a quantitative cross-sectional study. It was conducted at the Department of Medicine, Sir Syed College of Medical Sciences and Hospital, Karachi from January to June 2014. A total of 168 adult consecutive patients with type 2 diabetes mellitus of both the genders were included. Data was collected and analysed using SPSS-20.0. The association of dyslipidaemia with vitamin D status was computed through Chi-square test. RESULTS: We found that dyslipidaemia is highly prevalent in patients with type 2 diabetes mellitus in Pakistan. High total cholesterol, LDL cholesterol and triglycerides show significant association with vitamin D deficiency. CONCLUSIONS: In order to decrease the development of diabetic complications aggressive management of hyperglycaemia and dyslipidaemia is required. Vitamin D supplementation may play a dual role in these situations. PMID- 29330988 TI - Microbiological Profile From Middle Ear And Nasopharynx In Patients Suffering From Chronic Active Mucosal Otitis Media. AB - BACKGROUND: Chronic otitis media is described as a tympanic membrane perforation and ear discharge for more than six weeks duration. Ascending infection from the nasopharynx into the middle ear cleft has been attributed to prevent resolution of chronic otitis media. This research aims to determine the association between the microbiological flora of the nasopharynx with that of the middle ear in patients suffering from chronic (active) mucosal otitis media.. METHODS: Our study is a hospital-based cross-sectional survey. It was conducted from December 2015 to February 2017 at the Department of ENT, Combined Military Hospital, Abbottabad. Ear and nasopharyngeal swabs were obtained from 65 patients of chronic active mucosal otitis media and sent for microbiological analysis. Microbiological culture and sensitivity test was performed to identify the microbial spectrum of each specimen. Performa bearing the result of otoscopy, aspirate and swabs were completed for middle ear and the nasopharyngeal culture with reference to each patient. Descriptive statistics and Pearson's chi square analysis were performed using SPSS-22. RESULTS: Staphylococcus aureus and Pseudomonas aeruginosa are foremost microorganisms found in otorrhea culture isolated from patients of chronic active mucosal otitis media. Majority of the cultures from nasopharynx of these patients did not reveal any growth after incubation for 48 hours. CONCLUSIONS: A statistically insignificant association exists between the microbiological spectrum of the middle ear and the nasopharynx of patients suffering from chronic active mucosal otitis media. Micro organisms' exposure from a perforated tympanic membrane remains leading cause of persistent otorrhea, rather than ascending infection through the Eustachian tube. PMID- 29330989 TI - Hepatitis B And Hepatitis C Virus In Women With First Pregnancy. AB - BACKGROUND: Hepatitis B and Hepatitis C are amongst the leading causes of morbidity and mortality in pregnant women throughout the globe. This study is aimed at determining the frequency of these infections among primigravid females and the common factors that make them prone to these infections. METHODS: This cross-sectional study was conducted at Ayub Teaching Hospital, Abbottabad from December 2015 to May 2016. A total of 174 jaundiced primigravida patients were included in the study through non-probability consecutive sampling. Blood samples were sent for HBsAg and anti-HCV ELISA. Samples were analysed by the pathologist with more than 5 years clinical experience. All data will be analysed using SPSS 16. RESULTS: The mean age of the subjects was 24+/-5.7 years. Six (3.4%) patients were HBsAg positive and 13 (7.5%) were anti-HCV positive. About 9% of patients had undergone surgery in their life and 1.7% reported having received blood transfusion during their life. Thirty-two of them had history of intravenous or intramuscular injections. History of piercing of body part mostly ear-piercing for ornaments was present in 170 (97.7%) respondents. However, the frequency of blood transfusion, surgery and body piercing was not statistically significantly between HBsAg positive, HBsAg negative, and anti-HCV positive and negative patients (p>0.05). CONCLUSIONS: The incidence of these viral infections in our community is on the rise. It emphasizes the need of routine antenatal screening in pregnant ladies for these viruses and to educate the public about preventive measures against these infections. PMID- 29330990 TI - Association Of Quality Of Sleep With Cognitive Decline Among The Patients Of Chronic Kidney Disease Undergoing Haemodialysis. AB - BACKGROUND: This study was conducted to determine the association between the subjective quality of sleep and cognitive decline among the patients of chronic kidney disease (CKD) undergoing haemodialysis. METHODS: In this cross-sectional study 106 patients of chronic kidney disease (CKD) undergoing haemodialysis at a tertiary care hospital in Rawalpindi, Pakistan were included in the final analysis. Cognitive decline was measured by British Columbia Cognitive Complaints Inventory (BC-CCI). Sleep quality was measured by using the Pittsburgh Sleep Quality Index (PSQI). Relationship of age, gender, marital status, education, occupation, BMI, duration of dialysis, dialysis count per week, family income, tobacco smoking and use of naswar was assessed with the cognitive decline.. RESULTS: Out of 106 patients screened through BC-CCI and PSQI, 13.1% had no cognitive decline while 86.9% had significant cognitive decline. Relationship between quality of sleep and cognitive decline was significant on binary logistic regression.. CONCLUSIONS: This study showed significant relationship between the sleep quality and cognitive decline among the patients of CKD undergoing haemodialysis. The findings of our study also call for a greater degree of understanding of the physical and psychological state of patients of CKD undergoing haemodialysis. PMID- 29330991 TI - Diaphyseal Nutrient Foramina In Dried Human Adult Long Bones Of Lower Limb In Pakistan. AB - BACKGROUND: osteogenesis needs circulation of blood in the bones. Bone growth, repair of fracture, maintenance of bone vitality and other injures also need blood circulation in proper way. Blood is allowed to flow via holes in the diaphysis, which are called as nutrient foramina. METHODS: The crosssectional study was done in the department of Anatomy, Ayub and Khyber Medical College (Osteology Sections). The aim was to observe diaphyseal nutrient foramina in the human long bones of the lower limb. The study was done on 90 long bones of lower limb consisting of 30 femora, 30 tibiae and 30 fibulae. Of all these bones, sex was not determined. All the bones were macroscopically observed. For the number of the foramina, simple counting was done. The foraminae 1 mm away from the borders were counted. All positions were seen macroscopically. For direction and obliquity, stiff wire was used. RESULTS: We studied 90 long bones of lower limb. About 80% of long bones of lower limb showed single nutrient foramina. About 18% of lower limb long bones showed two nutrient foraminae. In cases of femora nutrient foraminae were directed proximally. In cases of fibulae and tibiae most of the foramina were directed distally. CONCLUSIONS: the study has provided additional information on the foramina index, morphology and topography of the nutrient foramina. In the lower limb long bones, the anatomical data is important for the clinicians as the micro-vascular bone transfer is becoming popular. This morphological data can be used by the forensic experts in identification through different landmarks in bones development giving an aid in medicolegal work. PMID- 29330992 TI - Client Satisfaction And Decision Making Amongst Females Visiting Family Planning Clinics In Hyderabad, Pakistan. AB - BACKGROUND: Family Planning is the basic right of the human being. It involves decision regarding the number of children and desired space between children by the couple themselves. Quality services involving multiple dimensions build the confidence of the clients and lack of quality is one of the constraints behind incomplete coverage of family planning. Objectives of the current study were to determine the client satisfaction, decision-making process and various influences on clients in adopting family planning methods. METHODS: This cross-sectional study was conducted at Family Planning Centre of Liaquat University Hospital, Hyderabad in 2016. Quality of the family planning services and satisfaction with the services were assessed through responses obtained from women selected purposively and visiting family planning centre through exit interviews with structured pretested and reliable questionnaire after taking the written consent. RESULTS: Access to Family Planning Centre was not an issue in 92% cases but only 31% respondents were appropriately greeted, 77% faced blank expression and 13% received sufficient privacy. Health problems and socioeconomic conditions were inquired by 41% and18% providers respectively, while motivating force for service use was mother in law in most 35% cases. Health workers were successful in clarifying misinformation (86%) and explaining side effects (71%) but only 21% respondents were satisfied with services. Respondents are influenced by family and health care providers while making decision and type of influence was considered positive by 83% respondents. CONCLUSIONS: Training and monitoring system be strengthened at family planning centres to improve quality of services while important influencing relations be focused for family planning education to improve utilization of services. PMID- 29330993 TI - Chemical Composition Of Stones In Paediatric Urolithiasis. AB - BACKGROUND: Chemical composition of stones is one of the important diagnostic criteria for aetiology of stone formation and treatment to prevent recurrence. This paper reports composition of stones in children at a tertiary hospital by Fourier Transformation Infrared Spectroscopy (FTIR). METHODS: Between January June 2015, 412 urinary stones from children were analysed by FTIR. Chi-square tests were used for the comparison of categorical measurements between groups. All reported values were 2-sided and statistical significance was considered at p value <=0.05. RESULTS: Of the 412 stones, 263 (63.8%) were renal, 101(24.5%) bladder and 48 (11.7%) ureteric. The mean age of children was 7.15+/-4.13 years with a M:F ratio 2.4:1. Of the 412 stones, 144(34.9%) were pure stones composed of one compound and 268(65.1%) were mixtures. Frequency of compound in stones was Ammonium Acid Urate (AAU) (65%), Calcium Oxalate (CaOx) (76.9%), Uric Acid (5%), Calcium Phosphate Apatite (7%), Whitlockite (8.4%), Struvite (4%), Cystine (0.72%) and Xanthine (2.11%). Frequency of compounds analysed in three ages groups 0-5, 6-10 and 11-15 years showed high frequency of AAU (73%) in 0-5 years as compared to (60%) in 11-15 years (p<0.018). CaOx (90%) in 11-15 as compared to (62.5%) in 0-5 years (p<0.001). Bladder stones were more prevalent in children 0 5 years (32%) vs 19% in 11-15 years (p<0.004) while renal were 75% in 11-15 years and 54% in 0-5 years (p<0.04). CONCLUSIONS: AAU stones known to be associated with malnutrition and chronic diarrhoea are highly prevalent in paediatric stones formers in our population in the kidney, bladder and ureter. PMID- 29330994 TI - Pattern Of Causative Micro-Organisms In Catheter Related Blood Stream Infections In Dialysis Patients: Experience From Saudi Arabia. AB - BACKGROUND: Catheter related blood stream infections (CRBSI) are the leading cause of morbidity in HD patients. The majority of these infections relate to haemodialysis catheters. There is a paucity of local data on microbial agents responsible for CRBSI in our region. This prompted our study. METHODS: This Prospective observatory survey was conducted in Department of Nephrology, King Fahd Hospital, Hofuf KSA from Nov 2014 to Jan 2017 (26 months). It was performed on dialysis patients with HD catheters who developed features of CRBSI. Blood cultures were taken from the patient and cultured microorganisms were observed and stratified according to type and prevalence in relation to age gender and comorbidities. RESULTS: There were 210 distinct episodes of CRBSI. 61.5% (n=129) were due to gram negative microorganisms and 38.5% (n=81) were due to Gram positive microorganism. Fifty-three events were due to Coagulase Negative Staphylococcus aureus. Enterobacter cloachae accounted for 28 events. Pseudomonas 19 events, Enterococcus faecalis 13, Klebsiella 11, Acinitobacter accounted for 8 events. CRBSI was observed more frequently in males (n=136), diabetics (n=113) and in age 40 years+/-19 years(n=97). CONCLUSIONS: Gram negative microorganisms were more commonly responsible for CRBSI in our settings. Enterobacter cloachae was most common gram-negative microorganism responsible for CRBSI, a finding not observed in other studies. There was significant predisposition to diabetics, male gender and middle age group. We need further studies to observe antibiotics sensitivity of microorganisms so that we can standardize empirical antibiotics in cases of CRBSI. PMID- 29330995 TI - Depression In Myocardial Infarction Patients At Ayub Teaching Hospital Abbottabad. AB - BACKGROUND: There is a considerably high prevalence of depression in post myocardial infarction (MI) patients. This study was designed with an aim to detect depression in patients with acute MI admitted to the CCU at Ayub Teaching Hospital Abbottabad.. METHODS: This descriptive crosssectional study enrolled 246 male and female patients with acute MI. The patients were interviewed on the 3rd day of admission and their answers were marked according to the HADS-D scale. RESULTS: With a cut-off score of 11, the frequency of depression in study participants was 27.24% (n=67). No statistically significant association was found between the age and sex of patients and depression. CONCLUSIONS: Depression is fairly common following acute MI and the management plans should include a consultation with psychiatric for individualized management of depression in post myocardial infarction patients.. PMID- 29330996 TI - Missed Immunization Opportunities Among Children Under 5 Years Of Age Dwelling In Karachi City. AB - BACKGROUND: Immunization is the safest and effective measure for preventing and eradicating various communicable diseases. A glaring immunization gap exists between developing and industrialized countries towards immunization, because the developing countries including Pakistan are still striving to provide basic immunization to their children. The purpose of this study was to access the prevalence and factors of missing immunization among under 5-year children of Karachi.. METHODS: A cross sectional study was conducted from June 2015 to October 2015 among different outpatient clinics of Karachi. Parents who had child less than 5 year of age were approached by non-probability purposive sampling. Data was analysed by using Statistical Package of Social Sciences. RESULTS: There were around 59.09% (n=156) and 64.43% (n=165) parents who have correctly responded regarding the number of essential immunization visit during the first and second year of their child life respectively. About 28.12% (n=108) parents responded that they do not know about the name and number of missed doses of vaccines. 31.78% (n=122) parents responded that their children have missed either one or more than one doses of routine immunization vaccines. Of which 34.42% (n=42) children have missed more than one vaccine. Lack of knowledge regarding immunization schedule 28.68% (n=34), concern about vaccine side effects 21.31%, (n=26), child sickness 17.21% (n=21), and lack of trust about government 10.65%, (n=13) were the major barriers identified by parents for missed immunization opportunities. CONCLUSIONS: Parents have inadequate knowledge regarding routine immunization visits, immunization schedule and vaccine doses. The practices of parents for routine childhood immunization are also poor. Parents refuse to immunize their child because of lack of immunization visit knowledge and also because of their doubts regarding vaccine potency and side effects. A proper system of immunization promotion, advocacy and reminder systems with proper follow-up mechanism need to be developed by all healthcare centres. PMID- 29330997 TI - Comparison Of Different Formulations Of Vitamin D. AB - BACKGROUND: Vitamin D Deficiency (VDD) is responsible for a wide spectrum of clinical diseases and vitamin D deficiency prevalence is frightening in most parts of the world including Pakistan. Therefore, supplementations of vitamin D are used in the population at high risk for the prevention and the treatment of vitamin D deficiency. Vitamin D supplementation comes in various formulations both oral and intramuscular. Cholecalciferol is the most commonly used preparation which is given through these routes of administration. There is need to study the fact that how much vitamin D levels are raised after administration of these different formulations as this can be a pivotal factor in determining dosage and route of vitamin D3. METHODS: This cross-sectional study conducted on 320 cases and compared the efficacy of various Vitamin D3 preparations in raising Vitamin D levels conducted in Department of Endocrinology and Metabolism, Services Hospital, Lahore from February to July, 2016. Blood serum was drawn for vitamin D level in the cases at the time of presentation and after treatment. RESULTS: Three hundred & twenty patients were enrolled in study and divided into four groups (A, B, C, D). There was no significant difference between groups (A, B, C, D) in change in vitamin d levels after 3 months of treatment (p-Value 0.446). CONCLUSIONS: Different preparations of vitamin D are equally effective in raising vitamin D levels at 12 weeks. However, there is a need to conduct large scale studies to further validate these results. PMID- 29330998 TI - Histomorphological Effects Of Hunger Stress On Ovaries. AB - BACKGROUND: Incidence of stress is on the rise in our daily life involving various neurobiological, endocrinological and behavioral changes. Hunger stress has a potent influence on mental, physical, and reproductive health by affecting the hypothalamic-pituitary gonadal axis. METHODS: It was a laboratory based randomized control trial. Adult female mice (BALB-c strain) weighing 25-27 grams on first day of estrous cycle were taken in two groups (ten each). Group A was kept in normal environment of animal house for one month. Group B was given hunger stress by restricting the diet to about 50% per day for one month. Right ovaries of the animals were dissected out and observed for shape, color, and weight. Histological slides were prepared for the count of primary, secondary, and tertiary follicles. RESULTS: Statistically significant decrease in animal and ovary weight with significant fall in ovarian follicles was observed. CONCLUSIONS: Hunger stress affects the ovaries by reducing its weight and number of follicles. PMID- 29330999 TI - Reasons Of Self-Discharge From Nursery Of A Tertiary Care Hospital. AB - BACKGROUND: Patients who leave against medical advice (LAMA) from a health facility is a recognized problem. In neonatology practice this issue is particularly sensitive as repercussions can be severe. The purpose of this study was to evaluate the factors influencing the decision of parents to self-discharge their babies against medical advice. METHODS: This descriptive case series was conducted in the Department of Neonatology, of the Children's Hospital and the Institute of Child Health, Lahore from January to June 2015. A total of 240 patients who self-discharged/were included. RESULTS: There were (59.6%) males and (40.4%) females with a male to female ratio of 2:1.5. Term babies constituted (67.9%), spontaneous vaginal deliveries (59.1%) and (55.8%) were delivered at hospitals. Seventy seven new-borns (32.2%) had birth asphyxia followed by neonatal sepsis (27.9%). Sixty four (64.5%) self-discharged within first week of admission. More babies were signed LAMA at week end (32.1%). Likewise (53.1%) babies were self- discharged during the night shift. Highest rate of LAMA was seen in parents belonging to low socioeconomic class (72.1%). Ninety eight parents (40.8%) had no formal education while well-educated parents were found to be 35 (14.6%). The commonest reason for selfdischarge was "perceived poor clinical outcome" (36.7%) by parents. CONCLUSIONS: Multiple factors were implicated in self-discharges from neonatology unit. Commonest reasons cited by parents were perception of poor clinical outcome and family pressures. Other contributory factors were male gender; those delivered vaginally, diagnosis of birth asphyxia, first week of life, at weekends and night hours. Low socioeconomic class and education of parents was also a major causative factor. PMID- 29331000 TI - Evaluation Of Peer Assisted Learning In Evidence Based Medicine Course: A Pilot Study At University Of Glasgow. AB - BACKGROUND: Peer Assisted Learning (PAL) is a well-established approach in learning and is increasingly being utilized in the medical education system. It is a process where active help of peer group members is taken for learning. This study aimed to look at the impact of peer assisted learning on the students at the end of the session. METHODS: Sixteen Postgraduate students attending Evidence Based Medicine (EBM) course spanning over two semesters (6 months each) were recruited. It was a cross sectional study and non-probability convenience sampling technique was used for gathering data. All students enrolled in EBM course conducted an hour-long PAL session during the coursework. At the end of the semester a link to an online questionnaire was sent to all the participants. A set of both open and closed ended questions were included in the questionnaire. RESULTS: Response rate was 87.5%, 14 out of the 16 students completed the questionnaire. The results showed an affirmative change in the behaviour and attitude of the participants' after the workshops. Majority of the respondents were of the opinion that it was a valuable experience and they benefitted through involvement in the process. Most of the postgraduate students suggested that it should be implemented in post graduate studies especially medical education. CONCLUSIONS: PAL is more interactive and informal way of teaching and it helps in the professional development, if peers from different specialties are gathered. However, study with a larger sample size are suggested to prove the generalizability of this assertion. PMID- 29331001 TI - Depression And Associated Factors: A Cross-Sectional Study Using Beck Depression Inventory. AB - BACKGROUND: Mental health disorders are becoming an increasingly common occurrence worldwide and present a major public health concern. Depression has been recognized as a major contributor in mental health disability burden. This study aims to determine the frequency of depression among individuals presenting at a rural health facility in Lahore and to identify the risk factors associated with it.. METHODS: A cross sectional study was conducted at Rural Health Centre Kahna Nau, Lahore from January to April 2017. A sample of 384 consenting individuals presenting at the rural health facility were selected through consecutive sampling technique. Beck Depression Inventory (BDI), was used to assess the level of depression amongst the respondents. We categorized the BDI score for this study into BDI >=20 as "depressed" and BDI <20 as "non-depressed". Data was entered and analysed by using SPSS 16.0. Chi-square test was carried out to identify factors associated with depression, significant at a p-value of <=0.05. RESULTS: Out of total, 258 (69.5%) respondents were males with 197 (53%) in age category of 25-44 years. BDI scale showed 84 (23%) respondents to be suffering from depression. Age (p=0.002), income (p=0.003), marital status (p=0.023), educational status (0.011), family structure (p=0.041), history of hospitalization (p=0.003), smoking status (0.012) and co-morbidity (p=0.001) were significantly associated with depression. CONCLUSIONS: Our study found a substantial proportion of patients' who were suffering from depression. Age, income, marital status, educational qualification, family structure, co-morbidity and smoking status were significantly associated with depression. PMID- 29331002 TI - Genetics Of Human Hereditary Hearing Impairment. AB - Hereditary hearing impairment is heterogeneous type of disorder which can be caused due to environmental as well as genetical factors. Two distinct types of hereditary hearing loss are syndromic or non-syndromic. Non-syndromic hearing loss is further categorized as autosomal recessive, autosomal dominant, X-linked and mitochondrial deafness. Autosomal recessive occurs more frequently as compared to autosomal dominant. Mutations in various genes are responsible for hereditary hearing impairment. To date, about 99 autosomal recessives and 67 autosomal dominant genes for deafness have been discovered. Some of important genes include GJB2, JGB6, GJB3 which encodes gap junction proteins, MYO7A, MYO15A encodes myosine proteins, OTOF encodes otoferlin, and SLC26A4 encodes anion exchanger protein. Up till now, the mutation in GJB2 gene occurs more frequently in different population of the world and cause autosomal recessive hearing impairment. The purpose of this review article was to explore the mutation and function of those muted genes which encode different type of protein and responsible either for autosomal recessive or autosomal dominant hearing impairment. PMID- 29331003 TI - Oral Sildenafil Use In Neonates With Persistent Pulmonary Hypertension Of Newborn. AB - BACKGROUND: The prevalence of PPHN has been estimated at 1.9 per 1000 live births. After the discovery of iNO's, its efficacy and benefit in PPHN is well established. Even in the best of centers equipped with iNo and ECMO the mortality is around 20%. Also, iNO is expensive and difficult to administer and monitor which makes it difficult choice in our part of the world. Furthermore About 40% of patients do not respond or have rebound pulmonary hypertension after discontinuation. Owing to these reasons, other treatment modalities like phosphodiesterase inhibitors such as Sildenafil need to be evaluated. METHODS: We report a retrospective case series of eighteen patients with PPHN admitted in NICU and treated with oral sildenafil. RESULTS: Three (17%) babies had mild, 5 (28%) moderate and 10 (55%) severe PPHN based on echocardiography. Sildenafil was started on all patients on a mean of 1.67 days and stopped on mean 12.6 days. Initial fio2 was 100%, which after starting sildenafil decreased gradually to 40% on mean 10 days. Average length of stay in NICU was 13 days. Twelve (67%) patients survived whereas 6 (33%) expired (Figure 2). No improvement in oxygen Index after 36 hours (p<0.05) was the independent predicting risk factor for PPHN related mortality in the expired patients. CONCLUSIONS: Oral sildenafil can be a used in conjunction with other treatment modalities for PPHN especially in resource limited settings. However further studies regarding its comparative efficacy need to be done. PMID- 29331004 TI - Cholecystectomy For Gall Stones In 26 Months Old Child. AB - Cholelithiasis is a major cause of morbidity worldwide. The incidence of gall stone in children in Pakistan has not been sufficiently studied and is increasingly being detected: the reason may be a true rise in the incidence or an improvement in diagnosis due to liberal use of diagnostic facilities and thus the increased opportunity to detect disease. A healthy 2 years and 2 months old male child presented to outpatient with history of recurrent attacks of pain abdomen and anorexia. Ultrasonography showed a 0.6 mm stone, inflammation and pericholecystic fluid. Open cholecystectomy was performed under general anaesthesia. A distended gall bladder with multiple very small calculi was removed. Post-operative stay was uneventful and patient was allowed oral feeds after 24 hours. PMID- 29331005 TI - Pregnant Lady With Undiagnosed Hodgkin's Disease Presenting As Secondary Sclerosing Cholangitis. AB - Hodgkin's lymphoma. A 25 years old lady, 34 weeks primigravida was referred from the Emergency Department to the Medical Unit Khyber Teaching Hospital-MTI, Peshawar with four weeks of fever, progressive jaundice, pruritus, night sweats and weight loss. LFTs showed cholestatic picture, ERCP showed scanty intrahepatic giving beading and autumn tree appearance typical of sclerosing cholangitis. CBD was normal. Doppler U/S of hepatic and portal vein reported normal. She was started on steroids, ursodeoxycholic acid and antibiotics 3rd generation cephalosporins to which she did not respond well. This prompted a Liver biopsy which showed Hodgkin's disease having mixed cellularity. She was shifted to specialized oncology unit for further management where she died of irreversible liver damage. This is a rare case of secondary sclerosing cholangitis in Hodgkin's lymphoma of liver and the first case reported to our Hospital. PMID- 29331006 TI - Outbreak Of Extensively Drug Resistant Stenotrophomonas Maltophilia In Burn Unit. AB - Stenotrophomonas maltophiliais an emerging cause of nosocomial infections. We report an outbreak of XDR-Stenotrophomonas maltophilia infection from burn unit of a tertiary care hospital in July 2016. The strain isolated was resistant to all antimicrobials tested but colistin. Outbreak investigation was carried out which subsided after timely intervention. Patients were treated adequately by Colistin. PMID- 29331007 TI - Anaesthetic Management Of Nesidioblastosis In Two Infants. AB - Nesidioblastosis is the most common cause of non-transient, recurrent and persistent hypoglycaemia in neonates and infants. It is a disorder of diffuse proliferation of beta cells of the pancreas leading to hyperinsulinemia and hypoglycaemia. The main aim is to prevent the severe episodes of hypoglycaemia which can cause damage to the brain and/or mental retardation. In this case report we present two cases of nesidioblastosis and their perioperative anaesthetic course for near-total pancreatectomy. First case was a 7 months old female who had repeated episodes of convulsions since birth. Second case was a 4 month-old female child who again presented with seizures. The challenges faced in the perioperative period were the management of perioperative blood glucose levels and haemodynamic stability. PMID- 29331008 TI - Atypical Presentation Of Rickettsial Spotted Fever. AB - Acute febrile illness is a common entity in tropics and often is challenging due a host of pathogenic bacteria, viruses and fungi. Extensive work up is required for better management. Rickettsiosis is uncommon and hence comes lower down in the differentials of multiorgan failure being superseded by the more common diseases as malaria, enteric fever and Dengue. We document a case of young male presenting with high grade fever, multiorgan dysfunction (hepatic, renal, neurological and respiratory involvement), conjunctival suffusion, retiform rash and without lymphadenopathy. The diagnosis was further challenging because the rashes appeared late at 8th day in the course of illness, unlike the typical disease where rashes come on early in day 3-6 of the disease. Patient responded to timely treatment with doxycycline. Thus, a high index of suspicion is needed to diagnose Rickettsiosis in geographical areas apparently free of the disease. PMID- 29331009 TI - Cyanoacrylate Injury To The Ear Canal. AB - This is a case regarding a 35-year-old gentleman who presented to the Accident and Emergency department at Walsall Manor Hospital. He had mistakenly placed cyanoacrylate ('superglue') into his right ear canal in the early morning. In terms of its removal, an initial attempt was made in the Ear, Nose and throat (ENT) outpatient clinic which proved to be unsuccessful due to the amount of discomfort it caused the patient. Therefore, it had to be removed under general anaesthesia. PMID- 29331010 TI - Implants For Extracapsular Neck Of Femur Fracture Dynamic Hip Screw Versus Intramedullary Nailing. AB - Neck of femur fractures are the most prevalent type of injury in elderly trauma patients. Both intra and extra capsular type of fractures are equally distributed in the given population. Traditionally, Extra capsular fractures are fixed with Dynamic Hip screw or Intra medullary nailing based on the type of fracture. NICE (National Institute of Clinical Excellence) recommends fixing 31-A1 and 31-A2 fractures with DHS (Dynamic Hip Screw) whereas AO recommends fixing 31-A1 with DHS and 31-A2.1 subtype with DHS and 31-A2.2 and 31-A2.3with IMN (Intra medullary nail). In regional trauma centre 178 patients, 125 females and 53 males with extra capsular neck of femur fractures fixed were selected in a retrospective study. The data was spanning over a period of 1 year. Fractures were classified as per AO classification by two registrars. The implant selection was analysed in terms of the short term out come to find out the cost effectiveness of one over the other. The quality of reduction was assessed as per standard criteria and consideration of lateral femoral wall thickness was taken into account to assess the stability of fracture. The study found more risk of peri prosthetic fractures associated with Intra medullary nailing as compared to Dynamic Hip screw and more risk of Varus collapse was found to be associated with DHS as compared to IM Nail. Moreover, despite of Nail being costly as compared to DHS, the study did not reveal its superiority in terms of inpatient hospital stay. In appropriately selected patient DHS provides results in terms of hospital stay, revision rate and wound complications comparable to IM Nail in the short term justifying its use in the above-mentioned fracture patterns as per the standard National Institute of clinical Excellence guidelines. PMID- 29331011 TI - Transfusion-Related Acute Lung Injury In A Paediatric Intensive Care Unit Of Pakistan. AB - Background: Transfusion-Related Acute Lung Injury (TRALI) is a major cause of transfusionrelated morbidity and mortality in the intensive care unit setting. There is a paucity of such data from Pakistan. The purpose of this study is to assess the incidence and outcome of TRALI in critically ill children admitted in a pediatric intensive care unit (PICU) of Pakistan. Methods: This is a retrospective cohort study of all critically ill or injured children who developed TRALI or "possible" TRALI after blood transfusion based on Canadian Conference Consensus criteria in a closed multidisciplinary-cardiothoracic PICU from January 2012 to June 2016. The demographic, pertinent clinical data, transfusion-related variables and outcome of all cases of TRALI were recorded. Results: Of total 2975 admissions in the PICU during study period, 35.8% (1066) received 5124 blood components. Eleven cases developed TRALI in our cohort. The incidence of TRALI was 1.03% per patient transfused and 0.19% (19/100,000 per blood product transfused). Median age was 8 (range 1-14) yr., 70 % (n=8) were male. Mean PRISM-III score was 16.3+/-6.7. Mean time interval for onset of TRALI was 2.73+/-1.67 hr. The postoperative cardiac surgical and hematology-oncology patients were most common categories (63.6%). Plasma and platelets were the most commomly identified trigger of TRALI. The case-specific mortality was 63.6% and the overall mortality was 10.7% (p<0.0001). Conclusions: The incidence of TRALI in critically ill children is low, but is associated with high mortality. Critically ill children with high PRISM-III score, postoperative cardiac surgical and hematology-oncology patients are often affected by TRALI. PMID- 29331012 TI - Capillary Haemangioma Of Lower Lip In An African Patient. PMID- 29331013 TI - Epiploic Appendagitis. PMID- 29331014 TI - Biochemical Characterization of Recombinant Thermostable Cohnella sp. A01 beta Glucanase AB - Background: Typically, non-cellulytic glucanase, including fungi and yeast cell wall hydrolyzing enzymes, are released by some symbiotic fungi and plants during the mycoparasitic fungi attack on plants. These enzymes are known as the defense mechanisms of plants. This study intends to investigate the biochemical properties of beta-1,6-glucanase (bg16M) from native thermophilic bacteria, Cohnella A01. Methods: bg16M gene was cloned and expressed in E. coli BL21 (DE3). The enzyme was purified utilizing Ni-NTA nikcle sepharose column. Pustulan and laminarin were selected as substrates in enzyme assay. The purified bg16M enzyme was treated with different pH, temperature, metal ions, and detergents. Results: The expressed protein, including 639 amino acids, showed a high similarity with the hydrolytic glycosylated family 30. The molecular weight of enzyme was 64 kDa, and purification yield was 46%. The bg16M demonstrated activity as 4.83 U/ml on laminarin and 2.88 U/ml on pustulan. The optimum pH and temperature of the enzyme were 8 and 50 degrees C, respectively. The enzyme had an appropriate stability at high temperatures and in the pH range of 7 to 9, showing acceptable stability, while it did not lose enzymatic activity completely at acidic or basic pH. None of the studied metal ions and chemical compounds was the activator of bg16M, and urea, SDS, and copper acted as enzyme inhibitors. Conclusion: Biochemical characterization of this enzyme revealed that bg16M can be applied in beverage industries and medical sectors because of its high activity, as well as thermal and alkaline stability. PMID- 29331017 TI - Kv4 channels to kisspeptin neurons: 'Let's (not) go steady'. PMID- 29331016 TI - A candidate functional SNP rs7074440 in TCF7L2 alters gene expression through C FOS in hepatocytes. AB - The SNP rs7903146 at the transcription factor 7-like 2 (TCF7L2) locus is established as the strongest known genetic marker for type 2 diabetes via genome wide association studies. However, the functional SNPs regulating TCF7L2 expression remain unclear. Here, we show that the SNP rs7074440 is a candidate functional SNP highly linked with rs7903146. A reporter plasmid with rs7074440 normal allele sequence exhibited 15-fold higher luciferase activity compared with risk allele sequence in hepatocytes, demonstrating a strong enhancer activity at rs7074440. Additionally, we identified C-FOS as an activator binding to the rs7074440 enhancer using a TFEL genome-wide screen method. Consistently, knockdown of C-FOS significantly reduced TCF7L2 expression in hepatocytes. Collectively, a novel enhancer regulating TCF7L2 expression was revealed through searching for functional SNPs. PMID- 29331018 TI - Interplay of SpkG kinase and the Slr0151 protein in the phosphorylation of ferredoxin 5 in Synechocystis sp. strain PCC 6803. AB - In Synechocystis 6803, the ferredoxin 5 (Fd5) phosphoprotein and the S/T protein kinase SpkG are encoded by the slr0148 and slr0152 genes, respectively, which belong to the slr0144-slr0152 cluster. Using a targeted proteomic approach, we showed that SpkG is responsible for the phosphorylation of Fd5 on residues T18 and T72. Sequence alignments and Fd5 structure modelling suggest that these phosphorylation events modulate protein-protein interaction. Furthermore, Fd5 phosphorylation is affected by the Slr0151 protein encoded by the gene preceding spkG in the gene cluster. We propose that Slr0151 functions as an auxiliary protein in the regulation of the ratio between phosphorylated and nonphosphorylated forms of Fd5. PMID- 29331015 TI - Detection of human disease conditions by single-cell morpho-rheological phenotyping of blood. AB - Blood is arguably the most important bodily fluid and its analysis provides crucial health status information. A first routine measure to narrow down diagnosis in clinical practice is the differential blood count, determining the frequency of all major blood cells. What is lacking to advance initial blood diagnostics is an unbiased and quick functional assessment of blood that can narrow down the diagnosis and generate specific hypotheses. To address this need, we introduce the continuous, cell-by-cell morpho-rheological (MORE) analysis of diluted whole blood, without labeling, enrichment or separation, at rates of 1000 cells/sec. In a drop of blood we can identify all major blood cells and characterize their pathological changes in several disease conditions in vitro and in patient samples. This approach takes previous results of mechanical studies on specifically isolated blood cells to the level of application directly in blood and adds a functional dimension to conventional blood analysis. PMID- 29331019 TI - Cis-regulator runaway and divergence in asexuals. AB - With the advent of new sequencing technologies, the evolution of gene expression is becoming a subject of intensive genomic research, with sparking debates upon the role played by these kinds of changes in adaptive evolution and speciation. In this article, we model expression evolution in species differing by their reproductive systems. We consider different rates of sexual versus asexual reproduction and the different type of parthenogenesis (apomixis and the various modes of automixis). We show that competition for expression leads to two selective processes on cis-regulatory regions that act independently to organism level adaptation. Coevolution within regulatory networks allows these processes to occur without strongly modifying expression levels. First, cis-regulatory regions such as enhancers evolve in a runaway fashion because they automatically become associated to chromosomes purged from deleterious mutations ("Enhancer Runaway process"). Second, in clonal or nearly clonal species, homologous cis regulatory regions tend to diverge, which leads to haploidization of expression, when they are sufficiently isolated from one another ("Enhancer Divergence process"). We show how these two processes cooccur and vary depending on the level of outcrossing, gene conversion, mitotic recombination, or recombination in automictic species. This study offers thus a baseline to understand patterns of expression evolution across the diversity of eukaryotic species. PMID- 29331020 TI - Human phenotypes caused by PIEZO1 mutations; one gene, two overlapping phenotypes? AB - PIEZO1 is a large mechanosensitive ion channel protein. Diseases associated with PIEZO1 include autosomal recessive generalised lymphatic dysplasia of Fotiou (GLDF) and autosomal dominant dehydrated hereditary stomatocytosis with or without pseudohyperkalemia and/or perinatal oedema (DHS). The two disorders show overlapping features, fetal hydrops/perinatal oedema have been reported in both. Electrophysiological studies suggest opposite mechanisms of action: the mutations identified in GLDF patients cause a loss-of-function mechanism of disease and mutations in DHS patients cause gain of function. This raises the question: Is the pathogenic disease mechanism behind the fetal oedema the same in the two phenotypes? In this Symposium Review, we will discuss the two conditions and highlight key questions that remain to be answered. For instance, the perinatal oedema often resolves soon after birth and we are still at a loss to understand why. Are there any mechanisms which could compensate for the faulty PIEZO1 in these patients? Are there physiological changes at birth that are less reliant on the function of PIEZO1? Thus, there is a clear need for further studies into the two disorders, in order to fully understand the role of PIEZO1 in health and disease. PMID- 29331021 TI - Onset, progression and resolution of experimental peri-implant mucositis at different abutment surfaces: A randomized controlled two-centre study. AB - OBJECTIVES: To assess the onset, progression and resolution of experimentally induced peri-implant mucositis lesions at abutments with different microstructures in humans. MATERIAL & METHODS: In a randomized, controlled, interventional two-centre study, a total of 28 patients had received 28 target implants and were randomly allocated to either partially microgrooved (test) or machined (control) healing abutments. The study was accomplished in three phases, including a wound healing period (WH) following implant placement (12 weeks), a plaque exposure phase (EP-21 days) and a resolution phase (RP-16 weeks). Clinical (e.g. bleeding on probing-BOP), immunological (MMP-8) and microbiological (DNA counts for 11 species) parameters were evaluated. RESULTS: The incidence of peri implant mucositis at EPd21 was comparable in both test and control groups (60.0% versus 61.5%), but markedly lower at control abutments after a nonsurgical treatment and reconstitution of oral hygiene measures at RPw16 (46.7% versus 15.4%). At any follow-up visit (i.e. EP and RP), clinical parameters, MMP-8 levels and DNA counts of major bacterial species were not significantly different between both groups. CONCLUSION: The onset, progression and resolution of experimental peri-implant mucositis lesions were comparable in both groups. PMID- 29331022 TI - Open letter to journal editors on: International consensus radiochemistry nomenclature guidelines. PMID- 29331023 TI - Temozolomide analog PMX 465 downregulates MGMT expression in HCT116 colorectal carcinoma cells. AB - The efficacy of temozolomide (TMZ) treatment for cancers is currently limited by inherent or the development of resistance, particularly, but not exclusively, due to the expression of the DNA repair enzyme O6-methylguanine-DNA methyltransferase (MGMT) in a significant proportion of tumors. We have found that TMZ analog C8 methyl imidazole tetrazine (PMX 465) displayed good anticancer activity against the colorectal carcinoma HCT116 cells which are MGMT-overexpressing and mismatch repair (MMR)-deficient. In this study, we found that PMX 465 could downregulate the expression of MGMT in HCT116 cells at the protein and mRNA levels. We found that PMX 465 could reduce MGMT expression by increasing the binding of wild-type p53 to the MGMT promoter and reducing the binding of Sp1 to the MGMT promoter. PMID- 29331025 TI - Multidimensional endotypes of chronic rhinosinusitis and their association with treatment outcomes. AB - BACKGROUND: The expression of chronic rhinosinusitis (CRS) is multidimensional. Disease heterogeneity in patients with CRS remains poorly understood. This study aimed to identify endotypes of CRS using cluster analysis by integrating multidimensional characteristics and to explore their association with treatment outcomes. METHODS: A total of 28 clinical variables and 39 mucosal cellular and molecular variables were analyzed using principal component analysis. Cluster analysis was performed on 246 prospectively recruited Chinese CRS patients with at least 1-year postoperative follow-up. Difficult-to-treat CRS was characterized in each generated cluster. RESULTS: Seven subject clusters were identified. Cluster 1 (13.01%) was comparable to the classic well-defined eosinophilic CRS with polyps, having severe disease and the highest proportion of difficult-to treat CRS. Patients in cluster 2 (16.26%) and cluster 4 (13.82%) had relatively lower proportions of presence of polyps and presented mild inflammation with moderate proportions of difficult-to-treat cases. Subjects in cluster 2 were highly atopic. Cluster 3 (7.31%) and cluster 6 (21.14%) were characterized by severe or moderate neutrophilic inflammation, respectively, and with elevated levels of IL-8 and high proportions of difficult-to-treat CRS. Cluster 5 (4.07%) was a unique group characterized by the highest levels of IL-10 and lacked difficult-to-treat cases. Cluster 7 (24.39%) demonstrated the lowest symptom severity, a low proportion of difficult-to-treat CRS, and low inflammation load. Finally, we found that difficult-to-treat CRS was associated with distinct clinical features and biomarkers in the different clusters. CONCLUSIONS: Distinct clinicopathobiologic clusters of CRS display differences in clinical response to treatments and characteristics of difficult-to-treat CRS. PMID- 29331024 TI - Combination therapy of lovastatin and AMP-activated protein kinase activator improves mitochondrial and peroxisomal functions and clinical disease in experimental autoimmune encephalomyelitis model. AB - Recent studies report that loss and dysfunction of mitochondria and peroxisomes contribute to the myelin and axonal damage in multiple sclerosis (MS). In this study, we investigated the efficacy of a combination of lovastatin and AMP activated protein kinase (AMPK) activator (AICAR) on the loss and dysfunction of mitochondria and peroxisomes and myelin and axonal damage in spinal cords, relative to the clinical disease symptoms, using a mouse model of experimental autoimmune encephalomyelitis (EAE, a model for MS). We observed that lovastatin and AICAR treatments individually provided partial protection of mitochondria/peroxisomes and myelin/axons, and therefore partial attenuation of clinical disease in EAE mice. However, treatment of EAE mice with the lovastatin and AICAR combination provided greater protection of mitochondria/peroxisomes and myelin/axons, and greater improvement in clinical disease compared with individual drug treatments. In spinal cords of EAE mice, lovastatin-mediated inhibition of RhoA and AICAR-mediated activation of AMPK cooperatively enhanced the expression of the transcription factors and regulators (e.g. PPARalpha/beta, SIRT-1, NRF-1, and TFAM) required for biogenesis and the functions of mitochondria (e.g. OXPHOS, MnSOD) and peroxisomes (e.g. PMP70 and catalase). In summary, these studies document that oral medication with a combination of lovastatin and AICAR, which are individually known to have immunomodulatory effects, provides potent protection and repair of inflammation-induced loss and dysfunction of mitochondria and peroxisomes as well as myelin and axonal abnormalities in EAE. As statins are known to provide protection in progressive MS (Phase II study), these studies support that supplementation statin treatment with an AMPK activator may provide greater efficacy against MS. PMID- 29331027 TI - MiR-137 functions as a tumor suppressor in pancreatic cancer by targeting MRGBP. AB - miRNAs are small noncoding RNAs that act as critical epigenetic regulators in tumor carcinogenesis. In this study, our data showed that miR-137 was significantly downregulated in 58 pairs of human pancreatic cancer (PanCa) tissues and PanCa cell lines. Furthermore, the deregulated miR-137 was correlated with increased tumor size, higher TNM stage, and worse prognosis in pancreatic cancer. Functional studies demonstrated that overexpression of miR-137 dramatically suppressed cell proliferation and induced cell apoptosis in vitro. Meanwhile, upregulated miR-137 remarkably inhibited migration and invasion of pancreatic cancer cells. Further studies indicated that MRGBP was identified as the direct downstream target gene of miR-137. In addition, MRGBP expression is significantly downregulated in miR-137-transfected cells. Our previous study revealed that silencing of MRGBP suppressed the growth of PanCa cells in vitro and in vivo and also promoted apoptosis, and inhibited migration and invasion of PanCa cells, which are consistent with the effects of miR-137 overexpression. Taken together, our findings suggest that miR-137 may function as a novel tumor promoter through directly targeting MRGBP in PanCa. PMID- 29331026 TI - The asthma-rhinitis multimorbidity is associated with IgE polysensitization in adolescents and adults. AB - BACKGROUND: Children with multimorbid asthma and rhinitis show IgE polysensitization to several allergen sources. This association remains poorly studied in adolescents and adults using defined allergen molecules. We investigated IgE sensitization patterns towards a broad panel of aeroallergen components in adults and adolescents with a focus on individuals with asthma and rhinitis multimorbidity. METHODS: IgE reactivity to 64 micro-arrayed aeroallergen molecules was determined with the MeDALL-chip in samples from the French EGEA study (n = 840, age = 40.7 +/- 17.1) and the Swedish population-based birth cohort BAMSE (n = 786, age = 16 +/- 0.26). The age- and sex-adjusted associations between the number of IgE-reactive allergen molecules (>=0.3 ISU) and the asthma rhinitis phenotypes were assessed using a negative binomial model. RESULTS: Groups representing 4 phenotypes were identified: no asthma-no rhinitis (A-R-; 30% in EGEA and 54% in BAMSE), asthma alone (A+R-; 11% and 8%), rhinitis alone (A R+; 15% and 24%) and asthma-rhinitis (A+R+; 44% and 14%). The numbers of IgE reactive aeroallergen molecules significantly differed between phenotypes (median in A-R-, A+R-, A-R+ and A+R+: 0, 1, 2 and 7 in EGEA and 0, 0, 3 and 5 in BAMSE). As compared to A-R- subjects, the adjusted ratio of the mean number of IgE reactive molecules was higher in A+R+ than in A+R- or A-R+ (10.0, 5.4 and 5.0 in EGEA and 7.2, 0.7 and 4.8 in BAMSE). CONCLUSION: The A+R+ phenotype combined the sensitization pattern of both the A-R+ and A+R- phenotypes. This multimorbid polysensitized phenotype seems to be generalizable to various ages and allergenic environments and may be associated with specific mechanisms. PMID- 29331028 TI - Alteration in microRNA-17-92 dynamics accounts for differential nature of cellular proliferation. AB - MicroRNAs associated with the mir-17-92 cluster are crucial regulators of the mammalian cell cycle, as they inhibit transcription factors related to the E2F family that tightly control decision-making events for a cell to commit for active cellular proliferation. Intriguingly, in many solid cancers, these mir-17 92 cluster members are overexpressed, whereas in some hematopoietic cancers they are down-regulated. Our proposed model of the Myc/E2F/mir-17-92 network demonstrates that the differential expression pattern of mir-17-92 in different cell types can be conceived due to having a contrasting E2F dynamics induced by mir-17-92. The model predicts that by explicitly altering the mir-17-92-related part of the network, experimentally it is possible to control cellular proliferation in a cell type-dependent manner for therapeutic intervention. PMID- 29331029 TI - Characterization of CD34+ hematopoietic cells in systemic mastocytosis: Potential role in disease dissemination. AB - BACKGROUND: Recent studies show that most systemic mastocytosis (SM) patients, including indolent SM (ISM) with (ISMs+) and without skin lesions (ISMs-), carry the KIT D816V mutation in PB leukocytes. We investigated the potential association between the degree of involvement of BM hematopoiesis by the KIT D816V mutation and the distribution of different maturation-associated compartments of bone marrow (BM) and peripheral blood (PB) CD34+ hematopoietic precursors (HPC) in ISM and identified the specific PB cell compartments that carry this mutation. METHODS: The distribution of different maturation-associated subsets of BM and PB CD34+ HPC from 64 newly diagnosed (KIT-mutated) ISM patients and 14 healthy controls was analyzed by flow cytometry. In 18 patients, distinct FACS-purified PB cell compartments were also investigated for the KIT mutation. RESULTS: ISM patients showed higher percentages of both BM and PB MC-committed CD34+ HPC vs controls, particularly among ISM cases with MC-restricted KIT mutation (ISMMC ); this was associated with progressive blockade of maturation of CD34+ HPC to the neutrophil lineage from ISMMC to multilineage KIT-mutated cases (ISMML ). Regarding the frequency of KIT-mutated cases and cell populations in PB, variable patterns were observed, the percentage of KIT-mutated PB CD34+ HPC, eosinophils, neutrophils, monocytes and T cells increasing from ISMs-MC and ISMs+MC to ISMML patients. CONCLUSION: The presence of the KIT D816V mutation in PB of ISM patients is associated with (early) involvement of circulating CD34+ HPC and multiple myeloid cell subpopulations, KIT-mutated PB CD34+ HPC potentially contributing to early dissemination of the disease. PMID- 29331030 TI - Single-molecule nucleosome remodeling by INO80 and effects of histone tails. AB - Genome maintenance and integrity requires continuous alterations of the compaction state of the chromatin structure. Chromatin remodelers, among others the INO80 complex, help organize chromatin by repositioning, reshaping, or evicting nucleosomes. We report on INO80 nucleosome remodeling, assayed by single molecule Foerster resonance energy transfer on canonical nucleosomes as well as nucleosomes assembled from tailless histones. Nucleosome repositioning by INO80 is a processively catalyzed reaction. During the initiation of remodeling, probed by the INO80 bound state, the nucleosome reveals structurally heterogeneous states for tailless nucleosomes (in contrast to wild-type nucleosomes). We, therefore, propose an altered energy landscape for the INO80-mediated nucleosome sliding reaction in the absence of histone tails. PMID- 29331031 TI - Comparative study of efficacy and safety between bladder body and trigonal intravesical onabotulinumtoxina injection in the treatment of interstitial cystitis refractory to conventional treatment-A prospective, randomized, clinical trial. AB - PURPOSE: Intravesical onabotulinumtoxinA (BoNT-A) injection can relieve symptoms of interstitial cystitis/bladder pain syndrome (IC/BPS). However, the therapeutic efficacy of different injection sites is not well known. This study compared therapeutic efficacy and safety between bladder body and trigonal BoNT-A injection. MATERIALS AND METHODS: Patients were randomly treated with 100U of BoNT-A in 10 mL saline injected into 20 bladder body sites or 10 trigonal sites. The primary endpoint was changes of Visual Analog Scale (VAS) for Pain at 8th week after injection. Secondary endpoint included changes of Global Response Assessment (GRA), urinary frequency episodes, O'Leary-Sant score (OSS), and urodynamic study. RESULTS: Thirty-nine patients (bladder body, N = 20; trigone, N = 19) completed the study visits. Patients in both group had significant improvement in VAS, OSS, and functional bladder capacity after treatment. There was no significant difference in changes of urinary frequency, voided volume, post-void residual volume, and bladder capacity from baseline to 8 weeks between groups. Thirteen (65.0%) patients in bladder body group and 10 (52.6%) patients in trigone group had decrease of VAS more than 2 points after treatment (P = 0.43). Excellent symptom improvement (GRA >= 2) was noted in 9 (45%) patients with bladder body injection and 10 (52.6%) patients with trigonal injection (P = 0.63). Nine (45.0%) patients in bladder body group and 10 (52.6%) in trigonal group experienced dysuria after treatment (P = 0.52). CONCLUSION: No significant difference in the improvement of IC symptoms and urodynamic parameters after intravesical BoNT-A injection in the bladder body or trigone. The rate of adverse events was similar between groups. PMID- 29331032 TI - A split-body study evaluating the efficacy of a conformable surface cryolipolysis applicator for the treatment of male pseudogynecomastia. AB - BACKGROUND: Cryolipolysis is a non-invasive method of body shaping that has been used for male pseudogynecomastia. However, traditional vacuum suction cryolipolysis requires a minimum pinchable fat layer which may not always be present in this area. OBJECTIVE: To evaluate the efficacy and safety of a conformable surface cryolipolysis applicator for the reduction of male pseudogynecomastia. MATERIALS AND METHODS: Ten male subjects with pseudogynecomastia received two cycles of cryolipolysis to the breast 6 weeks apart. Ultrasound was used to measure the thickness of adipose tissue. RESULTS: Seven of 10 patients completed the study. Compared to baseline, the mean +/- SD change in adipose tissue thickness was 8.12 +/- 6.94 mm for the treated versus 1.03 +/- 6.03 mm for the control breast at week 6 (p = 0.014), and 8.71 +/- 7.04 mm for the treated vs. 2.66 +/- 7.04 mm for the control breast at week 12 (P = 0.16). Four (4) of seven (57%) patients were at least slightly satisfied with the treated breast, and although subject satisfaction was higher in the treated breast, this did not reach significance (0.085). Adverse events were mild and transient. CONCLUSION: A conformable surface cryolipolysis applicator was effective in reducing the mean adipose tissue thickness in subjects with male pseudogynecomastia. Lasers Surg. Med. (c) 2018 Wiley Periodicals, Inc. PMID- 29331034 TI - Effects of in situ selenium exposure and maternal transfer on survival and deformities of brown trout (Salmo trutta) fry. AB - Offspring of wild adult brown trout exposed to a range of Se concentrations were reared in a laboratory setting to primarily assess effects on survival and deformities. Maternal whole-body Se concentrations ranged from 4.7 to 22.6 mg/kg dry weight for wild fish. Corresponding Se concentrations in embryos ranged from 6.2 to 40.3 mg/kg dry weight. Significant relationships were found between embryo and whole-body tissue concentrations. Increasing egg Se concentrations were correlated with decreasing survival; however, hatch success was not significantly correlated with increasing embryo Se. The best fit effect concentration, 10% (EC10) for survival in the hatch to swim-up period was 20.6 mg/kg dry weight, and the EC10 for hatch to test termination at 88 d was 20.5 mg/kg dry weight egg Se. The best fit model for deformities was based on a baseline-adjusted severity index and resulted in an EC10 of 21.8 mg/kg dry weight egg Se. Both the best fit model EC10s represent more sensitive values than the published range of trout species EC10s. An egg to whole-body tissue conversion factor derived from the paired data resulted in a conversion factor for brown trout of 1.46, which resulted in a whole-body tissue EC10 of 14.04 mg/kg dry weight at an egg tissue EC10 of 20.5 mg/kg dry weight. Environ Toxicol Chem 2018;37:1396-1408. (c) 2018 SETAC. PMID- 29331033 TI - The efficacy and safety comparison of surgical treatments for stress urinary incontinence: A network meta-analysis. AB - AIMS: Stress urinary incontinence (SUI) is a common problem worldwide. Mainstream surgical procedures include tension-free vaginal tape (TVT), transobturator tape (TOT), tension-free vaginal tape-obturator (TVT-O), tension-free vaginal tape SECUR (TVT-S), and adjustable single-incision sling (Ajust). The aim of this study was to compare the efficacy and safety of these surgical procedures and assess which surgery is most optimal for SUI by adopting a network meta-analysis (NMA). METHODS: Electronic databases including PubMed, Cochrance Library, and Embase database were researched systematically, until March 21, 2017. The randomized controlled trials (RCTs) that compared the efficacy and safety of TVT, TOT, TVT-O, TVT-S, and Ajust were identified. The studies were included in the analysis when met the predefined inclusion criteria. After demographic and outcome data extraction, a network meta-analysis was conducted with software R 3.3.2 and STATA 14.0. Objective cure rate, subjective cure rate, postoperative complication rate, bladder perforation, tape erosion, urinary retention, and postoperative pain were considered as outcomes, and the outcomes were displayed as odds ratios (ORs) and 95% credible intervals (CrI). The consistency of direct and indirect evidence was assessed by node splitting. The ranks based on probabilities of intervention for the different endpoints were performed. RESULTS: Fourty-five RCTs with 7295 participants were analyzed. The NMA results revealed that, TVT, TOT, and Ajust had a higher objective cure rate than TVT-O and TVT-S (TVT-O: OR = 0.76, 95%CI [0.61, 0.94]; TVT-S: OR = 0.41, 95%CI [0.28, 0.60]). TVT, TOT, and TVT-O had a superior subjective cure rate than TVT-S and Ajust (Ajust: OR = 0.45, 95%CI [0.20, 0.91]; TVT-S: OR = 0.29, 95%CI [0.15, 0.56]). With TVT as the reference, TVT-S had a statistically lower postoperative complication rate (TVT-S: OR = 0.39, 95%CI [0.16, 0.89]). TVT-O, TVT-S, and TOT had a significantly lower bladder perforation rate (TOT: OR = 0.076, 95%CI [0.0060, 0.37]; TVT-O: OR = 4.1e-17, 95%CI [6.1e-48, 0.0032]; TVT-S: OR = 3.8e 17, 95%CI [1.8e-48, 0.0052]). There were no obvious differences between the five treatments for tape erosion. TVT-O exhibited a less postoperative retention (TVT O: OR = 0.35, 95%CI [0.16, 0.74]). Probabilities of ranking results indicated that TOT was the treatment with best ranking in efficacy and a relatively high safety. CONCLUSIONS: Our study recommend TOT as the optimal regimen for SUI with high efficacy and moderate safety when compared with TVT, TVT-O, TVT-S, and Ajust interventions. However, with the limitation of our study, additional high-quality studies are needed to further evaluate the outcomes. PMID- 29331035 TI - Noninvasive optical spectroscopy for identification of non-melanoma skin cancer: Pilot study. AB - OBJECTIVE: Optical spectroscopy offers a noninvasive alternative to biopsy as a first-line screening tool for suspicious skin lesions. This study sought to define several optical parameters across malignant and benign tissue types. STUDY DESIGN: Prospective pilot trial utilizing the Zenalux IM1 optical spectroscopy device from April 2016 to February 2017. For each skin lesion, provider pre biopsy probability of malignancy was compared to histolopathologic diagnosis. Optical data were characterized across basal cell carcinoma (BCC; n = 9), squamous cell carcinoma (SCC; n = 5), actinic keratosis (AK; n = 4), scar tissue (n = 6), nevus (n = 2), and neurofibroma (NF; n = 1). Across all patients, agreement was determined between control measurements collected adjacent to the lesion and from the upper extremity. METHODS: Prospective single center pilot study. The optical properties of 27 cutaneous lesions were collected from 18 adult patients presenting to Otolaryngology and Dermatology clinics with suspicious skin lesions warranting biopsy. Spectroscopy measurements were recorded for each lesion: two at the lesion site, two at an adjacent site (internal control), and one at the central medial upper extremity (arm control). Variables of interest included absolute oxygenated hemoglobin (Hb), Hb saturation, total Hb concentration, and Eumelanin concentration. For each lesion, internal control averages were subtracted from lesion averages to provide delta parameter values, and lesion averages were divided by internal control averages to provide ratio parameter values. RESULTS: Mean percent difference between pre biopsy probability of malignancy and histology was 29%, with a difference of 75% or greater seen in 5 of 25 lesions. Mean values for BCC, SCC, AK, and scar tissue varied most between extracted mean reduced scatter estimate (MUa'; cm- ) delta values (BCC: -2.2 +/- 3.8; SCC: -3.9 +/- 2.0; AK: -3.3 +/- 4.2, Scar: -1.7 +/- 1.2) and total Hb (uM) ratio (BCC: 2.0 +/- 3.3; SCC: 3.0 +/- 1.3; AK: 1.1 +/- 0.6; Scar: 1.4 +/- 1.1). Agreement between local and arm controls was poor. CONCLUSION: This pilot trial utilizes optical spectroscopy as a noninvasive method for determining cutaneous lesion histology. Effect sizes observed across optical parameters for benign and malignant tissue types will guide larger prospective studies that may ultimately lead to prediction of lesional histology without need for invasive biopsy. Lasers Surg. Med. 50:246-252, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29331036 TI - Prognostic significance of miR-21 and PDCD4 in patients with stage II esophageal carcinoma after surgical resection. AB - Many studies have shown that randomized clinical trial with long-term follow-up found no improvement in stage II esophageal carcinoma (EC) patients receiving preoperative neoadjuvant chemoradiotherapy or chemotherapy treatment, this limitation underscored the urgent need for novel and reliable biomarkers for prognosis and prediction in stage II EC. miR-21 is frequently over-expressed while programmed cell death 4 (PDCD4) is often down-regulated in solid tumors. This study aimed to investigate the clinicopathological and prognostic significance of miR-21 and PDCD4 expression and to elucidate any correlation between miR-21 and PDCD4 expression in stage II EC patients. The expression level of miR-21 was up-regulated while the PDCD4 protein was down-regulated in stage II EC tissues compared with the adjacent non-cancerous tissues. Analyses of the clinicopathological parameters indicated that miR-21 expression was associated with differentiation grade, T stage, and N stage. PDCD4 protein expression was associated with T stage, N stage, and tumor size. The univariate linear regression analysis suggested a significant negative correlation between miR-21 and PDCD4 expression. The Kaplan-Meier curve showed that high miR-21 expression or low PDCD4 expression predicted poor progression-free survival (PFS) and overall survival (OS) of patients with stag II EC. In conclusion, both up regulated miR-21 and down-regulated PDCD4 expression were associated with the aggressive progression and poor prognosis of stage II EC. miR-21 and PDCD4 might be potential biomarkers of tumor progression and indicators of prognosis of stag II EC. PMID- 29331037 TI - Pharmacist Intervention for Blood Pressure Control in Patients with Diabetes and/or Chronic Kidney Disease. AB - OBJECTIVES: The objectives of this study were to determine if hypertensive patients with comorbid diabetes mellitus (DM) and/or chronic kidney disease (CKD) receiving a pharmacist intervention had a greater reduction in mean blood pressure (BP) and improved BP control at 9 months compared with those receiving usual care; and compare Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC 7) guideline and 2014 guideline (JNC 8) BP control rates in patients with DM and/or CKD. METHODS: This cluster randomized trial included 32 medical offices in 15 states. Clinical pharmacists made treatment recommendations to physicians at intervention sites. This post hoc analysis evaluated mean BP and BP control rates in the intervention and control groups. MAIN RESULTS: The study included 335 patients (227 intervention, 108 control) when mean BP and control rates were evaluated by JNC 7 inclusion and control criteria. When JNC 8 inclusion and control criteria were applied, 241 patients (165 intervention, 76 control) remained and were included in the analysis. The pharmacist-intervention group had significantly greater mean systolic blood pressure reduction compared with usual care at 9 months (8.64 mm Hg; 95% confidence interval [CI] -12.8 to -4.49, p<0.001). The pharmacist-intervention group had significantly higher BP control at 9 months than usual care by either the JNC 7 or JNC 8 inclusion and control groups (adjusted odds ratio [OR] 1.97, 95% CI 1.01-3.86, p=0.0470 and OR 2.16, 95% CI 1.21-3.85, p=0.0102, respectively). PRINCIPAL CONCLUSIONS: This study demonstrated that a physician-pharmacist collaborative intervention was effective in reducing mean systolic BP and improving BP control in patients with uncontrolled hypertension with DM and/or CKD, regardless of which BP guidelines were used. PMID- 29331038 TI - Modeling strategic sperm allocation: Tailoring the predictions to the species. AB - Two major challenges exist when empirically testing the predictions of sperm allocation theory. First, the study species must adhere to the assumptions of the model being tested. Unfortunately, the common assumption of sperm allocation models that females mate a maximum of once or twice does not hold for many, if not most, multiply and sequentially mating animals. Second, a model's parameters, which dictate its predictions, must be measured in the study species. Common examples of such parameters, female mating frequency and sperm precedence patterns, are unknown for many species used in empirical tests. Here, we present a broadly applicable model, appropriate for multiply, sequentially mating animals, and test it in three species for which data on all the relevant parameter values are available. The model predicts that relative allocation to virgin females, compared to nonvirgins, depends on the interaction between female mating rate and the sperm precedence pattern: relative allocation to virgins increases with female mating rate under first-male precedence, while the opposite is true under later-male precedence. Our model is moderately successful in predicting actual allocation patterns in the three species, including a cricket in which we measured the parameter values and performed an empirical test of allocation. PMID- 29331039 TI - Expression of chemerin in the synovial fluid of patients with temporomandibular joint disorders. AB - The synovial membrane and fluid are significantly involved in the pathogenesis of temporomandibular joint (TMJ) disorders. This study aimed to investigate the relation between levels of chemerin in the synovial fluid (SF) of patients with TMJ disorder and their relationship. Sixty samples of SF were obtained from patients with an internal derangement (ID) or osteoarthritis (OA). Chemerin in the SF was examined by enzyme-linked immunosorbent assay (ELISA). The results showed greater levels of chemerin in the SF of patients with OA than ID. While chemerin levels were positively correlated with pain scores, they were inversely correlated with MMO. Chemerin levels increased progressively as the disorder stage became more severe. The findings of this study suggest that chemerin in SF may play role as a predisposing factor and may represent a novel potential prognostic biochemical marker in the pathogenesis of TMJ disorders. PMID- 29331040 TI - Jun, Gal, Cd74, and C1qb as potential indicator for neuropathic pain. AB - Neuropathic pain is a kind of pain caused by primary or secondary impairment or dysfunction of peripheral or central nervous system. Patients with neuropathic pain were often with poor clinical outcome. We screened the differentially expressed genes between sciatic nerve injury and dorsal root ganglion gene in the sham operation model. Microarray and the spared nerve injury module were used to explore the molecular mechanism of neuropathic pain by injuries and the differentially expressed genes (DEGs) were identified out. Besides, the bioinformatics methods were used to figure out the signaling pathways and expression regulation pattern these DEGs were enriched in, which may provide a basis for the molecular research and medicine target of therapy. Besides, protein protein interaction network analysis was performed on these selected intersection genes. A total of 40 DEGs were screened out and only pctp gene was down regulated, the left 39 genes were all up-regulated. Then, GO and KEGG enrichment analysis were performed on these intersection genes by DAVID software. Furthermore, protein-protein interaction network analysis was used to analyze the critical genes of neuropathic pain. Finally, four genes, that is, Jun, Gal, Cd74, and C1qb were identified to have strong interactions with other genes, which may function as the prognostic and predictive genes of neuropathic pain caused by peripheral injuries. Our results suggested that four differentially expressed genes, Jun, Gal, Cd74, and C1qb, had the potential to serve as prognostic or predictive markers for neuropathic pain, suggesting a potential application in the improvement of prognostic tools and treatments. PMID- 29331041 TI - Effect of low-level laser therapy on the healing of sites grafted with coagulum, deproteinized bovine bone, and biphasic ceramic made of hydroxyapatite and beta tricalcium phosphate. In vivo study in rats. AB - OBJECTIVE: The aim of this study was to evaluate the effect of low-level laser therapy (LLLT) on the healing of biomaterial graft areas (i.e., coagulum, deproteinized bovine bone, and biphasic ceramics comprising hydroxyapatite and beta-tricalcium phosphate). MATERIAL AND METHODS: Ninety rats were divided into two groups according to laser irradiation use (lambda 808 nm, 100 mW, phi ~600 MUm, seven sessions with 28 J of irradiation dose in total): a laser group and a control group. Each of these groups was divided into three subgroups of 15 animals each according to the type of biomaterial used: Coagulum (COA), deproteinized bovine bone (DBB), and hydroxyapatite/beta-tricalcium phosphate (HA/betaTCP). Biomaterials were inserted into Teflon domes, and these domes were grafted to the lateral aspect of the mandibular branch of the rats. The animals were sacrificed after 30, 60, and 90 days. Scarring patterns were evaluated by microtomography and histometry. The expression levels of BMP2, osteocalcin (OCN), and alkaline phosphatase (ALP) were evaluated by immunohistochemistry. The mRNA expression levels of ALP, BMP2, Jagged1, Osterix, Runx2, and TGFbeta1 were determined by RT-qPCR. RESULTS: The animals treated with LLLT exhibited increased mineralized tissues and bone, particularly after 90 days. These increases were associated with increased BMP2, OCN, and ALP protein expression and ALP, BMP2, and Jagged1 mRNA expression. CONCLUSION: LLLT improved the osteoconductive potential of DBB and HA/betaTCP grafts and bone formation in ungrafted areas. Lasers Surg. Med. (c) 2018 Wiley Periodicals, Inc. PMID- 29331042 TI - The effects of social context and food abundance on chimpanzee feeding competition. AB - Feeding competition is thought to play a role in primate social organization as well as cognitive evolution. For chimpanzees (Pan troglodytes), social and ecological factors can affect competition, yet how these factors interact to affect feeding behavior is not fully understood; they can be difficult to disentangle in wild settings. This experiment investigated the differential effects of food quantity, the presence of a co-feeding partner, and the contestability of a food patch on feeding rate. We presented tolerant pairs of chimpanzees from a semi-captive social group with an apparatus comprising a matrix of transparent tubes between two adjacent rooms, of which, either all (abundant condition) or only a small proportion (scarce condition) were baited with peanuts. Dyads were either grouped into the competitive treatment, in which peanuts were accessible from both sides of the apparatus simultaneously, or the non-competitive treatment, in which the peanuts were pre-divided; half of the tubes were accessible to one chimpanzee from one side, and the other half were accessible only from the opposite side of the apparatus. We compared dyadic tolerance levels with individual feeding rates across quantity conditions and between competitive treatments. While tolerance and food quantity had no effect on feeding rate, partner presence significantly increased feeding rate relative to individual feeding. This increase was much larger when the dyads directly competed over the peanuts than when they were co-feeding on a pre-divided set of peanuts. Thus, in a co-feeding situation, the presence of another individual and, to an even larger extent, the contestability of the food source play a larger role in chimpanzee feeding behavior than dyadic tolerance or food quantity. These findings highlight the relative impact of social facilitation and direct competition on co-feeding behavior between pairs of chimpanzees. PMID- 29331043 TI - Role of miR-203 in estrogen receptor-mediated signaling in the rat uterus and endometrial carcinoma. AB - The role of microRNAs (miRNA) in estrogen receptor (ER) signaling in the uterus and in endometrial cancer is not well understood. We therefore analyzed miRNA expression in uterine samples from a standard 3-day uterotrophic assay using young female adult rats to identify E2-regulated miRNAs. Microarray analysis identified 47 E2 down-regulated miRNAs including miR-30a, and 25 E2up-regulated miRNAs including miR-672, miR-203, and miR-146b. The strongly E2-upregulated miR 203 was selected for further analysis. miR-203 was deleted in the rat endometrial adenocarcinoma cell line, RUCA-I, using CRISPR/CAS9. Five clones devoid of miR 203 expression were generated. Proliferation was reduced and G2-arrest was observed in all miR-203 deficient RUCA-I clones. Transfection with a miR-203-3p mimic partially rescues this effect. Comparison of mRNA expression in three miR 203 knockout clones to wild type RUCA-I cells reveals 566 miR-203-upregulated and 592 miR-203-downregulated genes. 43 of the genes that are upregulated by miR-203 knockout in vitro are downregulated in the uterus by E2. Of these Acer2, Zbtb20, Ptn, Rcbtb2, Mum1l1, Hmgn3, and Nfat5 possess one or more seed sequence matches in their 3'-UTR that are predicted to be targets of miR-203. These data demonstrate the importance of E2 regulated miRNAs in general, and miR-203 in particular, for E2 regulated gene expression and physiological processes including proliferation and cell migration, in the uterus as well as in the etiology of endometrial carcinomas. PMID- 29331044 TI - Journey of oocyte from metaphase-I to metaphase-II stage in mammals. AB - In mammals, journey from metaphase-I (M-I) to metaphase-II (M-II) is important since oocyte extrude first polar body (PB-I) and gets converted into haploid gamete. The molecular and cellular changes associated with meiotic cell cycle progression from M-I to M-II stage and extrusion of PB-I remain ill understood. Several factors drive oocyte meiosis from M-I to M-II stage. The mitogen activated protein kinase3/1 (MAPK3/1), signal molecules and Rho family GTPases act through various pathways to drive cell cycle progression from M-I to M-II stage. The down regulation of MOS/MEK/MAPK3/1 pathway results in the activation of anaphase-promoting complex/cyclosome (APC/C). The active APC/C destabilizes maturation promoting factor (MPF) and induces meiotic resumption. Several signal molecules such as, c-Jun N-terminal kinase (JNK2), SENP3, mitotic kinesin-like protein 2 (MKlp2), regulator of G-protein signaling (RGS2), Epsin2, polo-like kinase 1 (Plk1) are directly or indirectly involved in chromosomal segregation. Rho family GTPase is another enzyme that along with cell division cycle (Cdc42) to form actomyosin contractile ring required for chromosomal segregation. In the presence of origin recognition complex (ORC4), eccentrically localized haploid set of chromosomes trigger cortex differentiation and determine the division site for polar body formation. The actomyosin contractile activity at the site of division plane helps to form cytokinetic furrow that results in the formation and extrusion of PB-I. Indeed, oocyte journey from M-I to M-II stage is coordinated by several factors and pathways that enable oocyte to extrude PB-I. Quality of oocyte directly impact fertilization rate, early embryonic development, and reproductive outcome in mammals. PMID- 29331045 TI - The urgent need for a harmonized severity scoring system for acute allergic reactions. AB - The accurate assessment and communication of the severity of acute allergic reactions are important to patients, clinicians, researchers, the food industry, and public health and regulatory authorities. Severity has different meanings to different stakeholders with patients and clinicians rating the significance of particular symptoms very differently. Many severity scoring systems have been generated, most focusing on the severity of reactions following exposure to a limited group of allergens. They are heterogeneous in format, none has used an accepted developmental approach, and none has been validated. Their wide range of outcome formats has led to difficulties with interpretation and application. Therefore, there is a persisting need for an appropriately developed and validated severity scoring system for allergic reactions that work across the range of allergenic triggers and address the needs of different stakeholder groups. We propose a novel approach to develop and then validate a harmonized scoring system for acute allergic reactions, based on a data-driven method that is informed by clinical and patient experience and other stakeholders' perspectives. We envisage two formats: (i) a numerical score giving a continuum from mild to severe reactions that are clinically meaningful and are useful for allergy healthcare professionals and researchers, and (ii) a three-grade-based ordinal format that is simple enough to be used and understood by other professionals and patients. Testing of reliability and validity of the new approach in a range of settings and populations will allow eventual implementation of a standardized scoring system in clinical studies and routine practice. PMID- 29331047 TI - The economic burden of overactive bladder in the United States: A systematic literature review. AB - AIMS: Overactive bladder (OAB) affects up to 17% of the United States (US) population. This study aimed to synthesize estimates of direct and indirect costs of OAB in the US and compare costs among those with and without OAB. METHODS: A systematic review was performed using MEDLINE/PubMed and Embase, from 2003 to 2016, following PRISMA guidelines. The target population was adults with idiopathic OAB or urge urinary incontinence from the US. Data were extracted on study and patient characteristics, all-cause and OAB-specific direct costs, resource use, and indirect costs. Costs were inflated to a common price year of 2016 USD. RESULTS: Eighteen studies were included. Mean insurer paid all-cause total direct healthcare costs ranged from 8168 to 15 569 USD, and OAB-specific costs ranged from 656 to 860 USD per-patient annually. Estimates of the incremental costs for OAB patients compared to non-OAB comparators ranged from 43% to 117%. One study estimated total annual indirect costs of OAB at 11 134 USD per-patient. CONCLUSIONS: The range of direct healthcare costs reported for managing patients with OAB varied, but was relatively small given the differing contributing data sources, study designs, and cost definitions. Direct costs were consistently higher among patients with OAB versus non-OAB comparisons, from a 1.4- to >2-fold increase annually. OAB-specific costs made up a small proportion of all-cause costs, highlighting the clinical and economic impact of OAB-related conditions such as falls, urinary tract infection, and depression. Few studies were identified that examined the indirect costs of OAB in the US. PMID- 29331046 TI - Prevalence, severity, and risk factors for acute exacerbations of nasal and sinus symptoms by chronic rhinosinusitis status. AB - BACKGROUND: Nasal and sinus symptoms (NSS) are common to many health conditions, including chronic rhinosinusitis (CRS). Few studies have investigated the occurrence and severity of, and risk factors for, acute exacerbations of NSS (AENSS) by CRS status (current, past, or never met European Position Paper on Rhinosinusitis [EPOS] criteria for CRS). METHODS: Four seasonal questionnaires were mailed to a stratified random sample of Geisinger primary care patients. Logistic regression was used to identify individual characteristics associated with AENSS occurrence and severity by CRS status (current long-term, current recent, past, never) using EPOS subjective symptoms-only (EPOSS ) CRS criteria. We operationalized 3 AENSS definitions based on prescribed antibiotics or oral corticosteroids, symptoms, and symptoms with purulence. RESULTS: Baseline and at least 1 follow-up questionnaires were available from 4736 subjects. Self-reported NSS severity with exacerbation was worst in the current long-term CRS group. AENSS was common in all subgroups examined and generally more common among those with current EPOSS CRS. Seasonal prevalence of AENSS differed by AENSS definition and CRS status. Associations of risk factors with AENSS differed by definition, but CRS status, body mass index, asthma, hay fever, sinus surgery history, and winter season consistently predicted AENSS. CONCLUSIONS: In this first longitudinal, population-based study of 3 AENSS definitions, NSS and AENSS were both common, sometimes severe, and differed by EPOSS CRS status. Contrasting associations of risk factors for AENSS by the different definitions suggest a need for a standardized approach to definition of AENSS. PMID- 29331048 TI - Dog bites in a U.S. county: age, body part and breed in paediatric dog bites. AB - AIM: To compare characteristics of gender, age, body part and breed in dog bites. METHODS: We reviewed 14 956 dog bites (4195 paediatric) reported to the Allegheny County Health Department, USA, between 2007 and 2015. Using predefined age groups, we performed linear regression to assess for subject age and bite frequency and used binary logistic regression to evaluate for differences in gender and body part. We used chi-squared test with Bonferroni correction to evaluate for differences in reported breeds with age. RESULTS: There was a negative correlation (-0.80, r2 = 0.64) between age and bite frequency. Children 0-3 years had a higher odds ratio (OR) of bites to the face [21.12, 95% confidence interval (CI): 17.61-25.33] and a lower OR of bites to the upper (OR: 0.14, 95% CI: 0.12-0.18) and lower (OR: 0.19, 95% CI: 0.14-0.27) extremities. 'Pit bulls' accounted for 27.2% of dog bites and were more common in children 13 18 years (p < 0.01). Shih-Tzu bites were more common in children three years of age and younger (p < 0.01). CONCLUSION: Dog bites occur with higher frequency at younger ages, and head and neck injuries are more common in younger children. Pit bull bites are more common in adolescents and Shih-Tzu bites more common in younger children. PMID- 29331049 TI - Prenatal maternal psychosocial stress and offspring's asthma and allergic disease: A systematic review and meta-analysis. AB - BACKGROUND: Prenatal maternal stress may influence offspring's atopic risk through sustained cortisol secretion resulting from activation of the hypothalamic-pituitary axis (HPA), leading to Th2-biased cell differentiation in the foetus. We undertook a systematic review and meta-analysis investigating the relationship between prenatal maternal psychosocial stress and risk of asthma and allergy in the offspring. METHODS: We searched 11 electronic databases from 1960 to 2016, searched the grey literature and contacted experts in the field. Type of stress indicator included mood disorders, anxiety, exposure to violence, bereavement and socio-economic problems occurring during pregnancy, both objectively and subjectively measured. We included all possible asthma and IgE mediated allergy outcomes. We conducted random-effects meta-analyses to synthesize the data. RESULTS: We identified 9779 papers of which 30 studies (enrolling >6 million participants) satisfied inclusion criteria. The quality of 25 studies was moderate, 4 were strong, and one was weak. Maternal exposure to any type of stressors was associated with an increased risk of offspring atopic eczema/dermatitis (OR 1.34, 95% CI 1.22-1.47), allergic rhinitis (OR 1.30, 95% CI 1.04-1.62), wheeze (OR 1.34, 95% CI 1.16-1.54) and asthma (OR 1.15, 95% CI 1.04 1.27). Exposure to anxiety and depression had strongest effect compared to other stressors. Exposure during the third trimester had the greatest impact compared to first and second trimesters. The increased risk was stronger for early-onset and persistent than for late-onset wheeze. Bereavement of a child (HR 1.28, 95% CI 1.10-1.48) or a spouse (HR 1.40, 95% CI 1.03-1.90) increased the risk of offspring asthma. CONCLUSIONS: Exposure to prenatal maternal psychosocial stress was associated with increased risk, albeit modestly, of asthma and allergy in the offspring. The pronounced risk during the third trimester may represent cumulative stress exposure throughout pregnancy rather than trimester-specific effect. Our findings may represent a causal effect or a result of inherent biases in studies, particularly residual confounding. PMID- 29331050 TI - Exercise counteracts lipotoxicity by improving lipid turnover and lipid droplet quality. AB - The incidence of obesity and metabolic disease, such as type 2 diabetes mellitus (T2D), is rising globally. Dietary lipid over supply leads to lipid accumulation at ectopic sites, such as skeletal muscle. Ectopic lipid storage is highly correlated with insulin resistance and T2D, likely due to a loss of metabolic flexibility - the capacity to switch between fat and glucose oxidation upon insulin stimulation - and cellular dysfunction because of lipotoxicity. However, muscle lipid levels are also elevated in endurance-trained athletes, presenting a paradoxical phenotype of increased intramuscular lipids along with high insulin sensitivity - the 'athletes' paradox'. This review focuses on recent human data to characterize intramuscular lipid species in order to elucidate some of the underlying mechanisms driving skeletal muscle lipotoxicity. There is evidence that lipotoxicity is characterized by an increase in bioactive lipid species, such as ceramide. The athletes' paradox supports the notion that regular physical exercise has health benefits that might originate from the alleviation of lipotoxicity. Indeed, exercise training alleviates intramuscular ceramide content in obese individuals without a necessary decrease in ectopic lipid storage. Furthermore, evidence shows that exercise training elevates markers of lipid droplet dynamics such as the PLIN proteins, and triglyceride lipases ATGL and HSL, as well as mitochondrial efficiency, potentially explaining the improved lipid turnover and a reduction in the accumulation of lipotoxic intermediates observed with the athelets' paradox. PMID- 29331051 TI - Fecal incontinence knowledge, attitudes, and help-seeking behaviors among community-dwelling adults in Korea. AB - OBJECTIVES: Fecal incontinence (FI) is a common debilitating disorder that tends to be underreported. Although low health literacy likely contributes to the underreporting, studies on FI knowledge among the general population remain scarce. We investigated how FI knowledge is associated with attitudes and help seeking behaviors. METHODS: We conducted a cross-sectional survey among community dwelling adults undergoing national health screening in Korea. A structured, self administered questionnaire was used to assess FI knowledge, attitudes, and help seeking behaviors. Odds ratios (ORs; 95% confidence intervals, CIs) were estimated using logistic regression with adjustment for covariables. RESULTS: Of the 601 participants completing the survey, only 29.8% were aware of the term FI, and their knowledge levels were insufficient. As for FI-related attitudes, 24.6% considered FI to be very rare, and 22.3% considered it to be moderately or less distressing. Individuals who knew the term FI tended to consider FI more common (OR: 2.45; 95%CI: 1.49-4.02) and distressing (OR: 1.68; 95%CI: 1.07-2.63) than those without knowledge. Assuming future FI occurrence, those considering FI to be distressing were less willing to ignore or self-manage the condition (OR: 0.25; 95%CI: 0.11-0.58). Among patients with FI (n = 83), only 30.1% had sought help and 8.4% had consulted doctors. Knowing the term FI was significantly associated with overall help-seeking behavior (OR: 9.23; 95%CI: 2.09-40.77). CONCLUSIONS: FI knowledge levels and help-seeking rates were low among community dwelling adults. FI knowledge was significantly associated with attitudes and help-seeking behaviors. Future public education programs are warranted to improve FI knowledge, attitudes, and help-seeking behaviors. PMID- 29331052 TI - Flow pattern analysis in type B aortic dissection patients after stent-grafting repair: Comparison between complete and incomplete false lumen thrombosis. AB - Endovascular stent graft repair has become a common treatment for complicated Stanford type B aortic dissection to restore true lumen flow and induce false lumen thrombosis. Using computational fluid dynamics, this study reports the differences in flow patterns and wall shear stress distribution in complicated Stanford type B aortic dissection patients after endovascular stent graft repair. Five patients were included in this study: 2 have more than 80% false lumen thrombosis (group 1), while 3 others had less than 80% false lumen thrombosis (group 2) within 1 year following endovascular repair. Group 1 patients had concentrated re-entry tears around the abdominal branches only, while group 2 patients had re-entry tears that spread along the dissection line. Blood flow inside the false lumen which affected thrombus formation increased with the number of re-entry tears and when only small amounts of blood that entered the false lumen exited through the branches. In those cases where dissection extended below the abdominal branches (group 2), patients with fewer re-entry tears and longer distance between the tears had low wall shear stress contributing to thrombosis. This work provides an insight into predicting the development of complete or incomplete false lumen thrombosis and has implications for patient selection for treatment. PMID- 29331054 TI - ARTIST: A fully automated artifact rejection algorithm for single-pulse TMS-EEG data. AB - Concurrent single-pulse TMS-EEG (spTMS-EEG) is an emerging noninvasive tool for probing causal brain dynamics in humans. However, in addition to the common artifacts in standard EEG data, spTMS-EEG data suffer from enormous stimulation induced artifacts, posing significant challenges to the extraction of neural information. Typically, neural signals are analyzed after a manual time-intensive and often subjective process of artifact rejection. Here we describe a fully automated algorithm for spTMS-EEG artifact rejection. A key step of this algorithm is to decompose the spTMS-EEG data into statistically independent components (ICs), and then train a pattern classifier to automatically identify artifact components based on knowledge of the spatio-temporal profile of both neural and artefactual activities. The autocleaned and hand-cleaned data yield qualitatively similar group evoked potential waveforms. The algorithm achieves a 95% IC classification accuracy referenced to expert artifact rejection performance, and does so across a large number of spTMS-EEG data sets (n = 90 stimulation sites), retains high accuracy across stimulation sites/subjects/populations/montages, and outperforms current automated algorithms. Moreover, the algorithm was superior to the artifact rejection performance of relatively novice individuals, who would be the likely users of spTMS-EEG as the technique becomes more broadly disseminated. In summary, our algorithm provides an automated, fast, objective, and accurate method for cleaning spTMS-EEG data, which can increase the utility of TMS-EEG in both clinical and basic neuroscience settings. PMID- 29331053 TI - REnal Flow and Microstructure AnisotroPy (REFMAP) MRI in Normal and Peritumoral Renal Tissue. AB - BACKGROUND: Diffusion-weighted imaging (DWI) provides insight into the pathophysiology underlying renal dysfunction. Variants of DWI include intravoxel incoherent motion (IVIM), which differentiates between microstructural diffusion and vascular or tubular flow, and diffusion tensor imaging (DTI), which quantifies diffusion directionality. PURPOSE: To investigate the reproducibility of joint IVIM-DTI and compare controls to presurgical renal mass patients. STUDY TYPE: Prospective cross-sectional. SUBJECTS: Thirteen healthy controls and ten presurgical renal mass patients were scanned. Ten controls were scanned twice to investigate reproducibility. FIELD STRENGTH/SEQUENCE: Subjects were scanned on a 3T system using 10 b-values and 20 diffusion directions for IVIM-DTI in a study approved by the local Institutional Review Board. ASSESSMENT: Retrospective coregistration and measurement of joint IVIM-DTI parameters were performed. STATISTICAL ANALYSIS: Parameter reproducibility was defined as intraclass correlation coefficient (ICC) >0.7 and coefficient of variation (CV) <30%. Patient data were stratified by lesion side (contralateral/ipsilateral) for comparison with controls. Corticomedullary differentiation was evaluated. RESULTS: In controls, the reproducible subset of REnal Flow and Microstructure AnisotroPy (REFMAP) parameters had average ICC = 0.82 and CV = 7.5%. In renal mass patients, medullary fractional anisotropy (FA) was significantly lower than in controls (0.227 +/- 0.072 vs. 0.291 +/- 0.044, P = 0.016 for the kidney contralateral to the mass and 0.228 +/- 0.070 vs. 0.291 +/- 0.044, P = 0.018 for the kidney ipsilateral). In the kidney ipsilateral to the mass, cortical Dp,radial was significantly higher than in controls (P = 0.012). Conversely, medullary Dp,axial was significantly lower in contralateral than ipsilateral kidneys (P = 0.027) and normal controls (P = 0.044). DATA CONCLUSION: REFMAP-MRI parameters provide unique information regarding renal dysfunction. In presurgical renal mass patients, directional flow changes were noted that were not identified with IVIM analysis alone. Both contralateral and ipsilateral kidneys in patients show reductions in structural diffusivities and anisotropy, while flow metrics showed opposing changes in contralateral vs. ipsilateral kidneys. LEVEL OF EVIDENCE: 2 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018. PMID- 29331055 TI - The challenges and possibilities of public access defibrillation. AB - Out-of-hospital cardiac arrest (OHCA) is a major health problem that affects approximately four hundred and thousand patients annually in the United States alone. It is a major challenge for the emergency medical system as decreased survival rates are directly proportional to the time delay from collapse to defibrillation. Historically, defibrillation has only been performed by physicians and in-hospital. With the development of automated external defibrillators (AEDs), rapid defibrillation by nonmedical professionals and subsequently by trained or untrained lay bystanders has become possible. Much hope has been put to the concept of Public Access Defibrillation with a massive dissemination of public available AEDs throughout most Western countries. Accordingly, current guidelines recommend that AEDs should be deployed in places with a high likelihood of OHCA. Despite these efforts, AED use is in most settings anecdotal with little effect on overall OHCA survival. The major reasons for low use of public AEDs are that most OHCAs take place outside high incidence sites of cardiac arrest and that most OHCAs take place in residential settings, currently defined as not suitable for Public Access Defibrillation. However, the use of new technology for identification and recruitment of lay bystanders and nearby AEDs to the scene of the cardiac arrest as well as new methods for strategic AED placement redefines and challenges the current concept and definitions of Public Access Defibrillation. Existing evidence of Public Access Defibrillation and knowledge gaps and future directions to improve outcomes for OHCA are discussed. In addition, a new definition of the different levels of Public Access Defibrillation is offered as well as new strategies for increasing AED use in the society. PMID- 29331056 TI - Exploring the advantages of multiband fMRI with simultaneous EEG to investigate coupling between gamma frequency neural activity and the BOLD response in humans. AB - We established an optimal combination of EEG recording during sparse multiband (MB) fMRI that preserves high-resolution, whole-brain fMRI coverage while enabling broad-band EEG recordings which are uncorrupted by MRI gradient artefacts (GAs). We first determined the safety of simultaneous EEG recording during MB fMRI. Application of MB factor = 4 produced <1 degrees C peak heating of electrode/hardware during 20 min of GE-EPI data acquisition. However, higher SAR sequences require specific safety testing, with greater heating observed using PCASL with MB factor = 4. Heating was greatest in the electrocardiogram channel, likely due to it possessing longest lead length. We investigated the effect of MB factor on the temporal signal-to-noise ratio for a range of GE-EPI sequences (varying MB factor and temporal interval between slice acquisitions). We found that, for our experimental purpose, the optimal acquisition was achieved with MB factor = 3, 3mm isotropic voxels, and 33 slices providing whole head coverage. This sequence afforded a 2.25 s duration quiet period (without GAs) in every 3 s TR. Using this sequence, we demonstrated the ability to record gamma frequency (55-80 Hz) EEG oscillations, in response to right index finger abduction, that are usually obscured by GAs during continuous fMRI data acquisition. In this novel application of EEG-MB fMRI to a motor task, we observed a positive correlation between gamma and BOLD responses in bilateral motor regions. These findings support and extend previous work regarding coupling between neural and hemodynamic measures of brain activity in humans and showcase the utility of EEG-MB fMRI for future investigations. PMID- 29331058 TI - Endoscopic band ligation for colonic diverticular bleeding. PMID- 29331059 TI - Neuroanatomical correlates of grit: Growth mindset mediates the association between gray matter structure and trait grit in late adolescence. AB - There is a long-standing interest in exploring the factors related to student achievement. As a newly explored personality trait, grit is defined as a person's tendency to pursue long-term goals with continual perseverance and passion, and grit plays a critical role in student achievement. Increasing evidence has shown that growth mindset, the belief that one's basic abilities are malleable and can be developed through effort, is a potential factor for cultivating grit. However, less is known about the association between grit and the brain and the role of growth mindset in this association. Here, we utilized voxel-based morphometry to examine the neuroanatomical correlates of grit in 231 healthy adolescent students by performing structural magnetic resonance imaging. The whole-brain regression analyses revealed that the regional gray matter volume (rGMV) in the left dorsolateral prefrontal cortex (DLPFC) negatively predicted grit. In contrast, the rGMV in the right putamen positively predicted grit. Furthermore, mediating analyses suggested that growth mindset served as a mediator in the association between left DLPFC volume and grit. Our results persisted even after controlling for the influences of self-control and delayed gratification. Overall, our study presents novel evidence for the neuroanatomical basis of grit and highlights that growth mindset might play an essential role in cultivating a student's grit level. PMID- 29331060 TI - Regional hippocampal vulnerability in early multiple sclerosis: Dynamic pathological spreading from dentate gyrus to CA1. AB - BACKGROUND: Whether hippocampal subfields are differentially vulnerable at the earliest stages of multiple sclerosis (MS) and how this impacts memory performance is a current topic of debate. METHOD: We prospectively included 56 persons with clinically isolated syndrome (CIS) suggestive of MS in a 1-year longitudinal study, together with 55 matched healthy controls at baseline. Participants were tested for memory performance and scanned with 3 T MRI to assess the volume of 5 distinct hippocampal subfields using automatic segmentation techniques. RESULTS: At baseline, CA4/dentate gyrus was the only hippocampal subfield with a volume significantly smaller than controls (p < .01). After one year, CA4/dentate gyrus atrophy worsened (-6.4%, p < .0001) and significant CA1 atrophy appeared (both in the stratum-pyramidale and the stratum radiatum-lacunosum-moleculare, -5.6%, p < .001 and -6.2%, p < .01, respectively). CA4/dentate gyrus volume at baseline predicted CA1 volume one year after CIS (R2 = 0.44 to 0.47, p < .001, with age, T2 lesion-load, and global brain atrophy as covariates). The volume of CA4/dentate gyrus at baseline was associated with MS diagnosis during follow-up, independently of T2-lesion load and demographic variables (p < .05). Whereas CA4/dentate gyrus volume was not correlated with memory scores at baseline, CA1 atrophy was an independent correlate of episodic verbal memory performance one year after CIS (beta = 0.87, p < .05). CONCLUSION: The hippocampal degenerative process spread from dentate gyrus to CA1 at the earliest stage of MS. This dynamic vulnerability is associated with MS diagnosis after CIS and will ultimately impact hippocampal-dependent memory performance. PMID- 29331061 TI - Lutolf R, Hughes FM, Jr., Inouye BM, Jin H, McMains JC, Pak ES, Hannan JL, Purves JT. NLRP3/IL-1beta mediates denervation during bladder outlet obstruction in rats. Neurourology and urodynamics 2017. PMID- 29331057 TI - Manifestations and mechanisms of myocardial lipotoxicity in obesity. AB - Environmental and socioeconomic changes over the past thirty years have contributed to a dramatic rise in the worldwide prevalence of obesity. Heart disease is amongst the most serious health risks of obesity, with increases in both atherosclerotic coronary heart disease and heart failure among obese individuals. In this review, we focus on primary myocardial alterations in obesity that include hypertrophic remodelling and diastolic dysfunction. Obesity associated perturbations in myocardial and systemic lipid metabolism are important contributors to cardiovascular complications of obesity. Accumulation of excess lipid in nonadipose cells of the cardiovascular system can cause cell dysfunction and cell death, a process known as lipotoxicity. Lipotoxicity has been modelled in mice using high-fat diet feeding, inbred lines with mutations in leptin receptor signalling, and in genetically engineered mice with enhanced myocardial fatty acid uptake, altered lipid droplet homoeostasis or decreased cardiac fatty acid oxidation. These studies, along with findings in cell culture model systems, indicate that the molecular pathophysiology of lipid overload involves endoplasmic reticulum stress, alterations in autophagy, de novo ceramide synthesis, oxidative stress, inflammation and changes in gene expression. We highlight recent advances that extend our understanding of the impact of obesity and altered lipid metabolism on cardiac function. PMID- 29331062 TI - Benefits of increasing transpiration efficiency in wheat under elevated CO2 for rainfed regions. AB - Higher transpiration efficiency (TE) has been proposed as a mechanism to increase crop yields in dry environments where water availability usually limits yield. The application of a coupled radiation and TE simulation model shows wheat yield advantage of a high-TE cultivar (cv. Drysdale) over its almost identical low-TE parent line (Hartog), from about -7 to 558 kg/ha (mean 187 kg/ha) over the rainfed cropping region in Australia (221-1,351 mm annual rainfall), under the present-day climate. The smallest absolute yield response occurred in the more extreme drier and wetter areas of the wheat belt. However, under elevated CO2 conditions, the response of Drysdale was much greater overall, ranging from 51 to 886 kg/ha (mean 284 kg/ha) with the greatest response in the higher rainfall areas. Changes in simulated TE under elevated CO2 conditions are seen across Australia with notable increased areas of higher TE under a drier climate in Western Australia, Queensland and parts of New South Wales and Victoria. This improved efficiency is subtly deceptive, with highest yields not necessarily directly correlated with highest TE. Nevertheless, the advantage of Drysdale over Hartog is clear with the benefit of the trait advantage attributed to TE ranging from 102% to 118% (mean 109%). The potential annual cost-benefits of this increased genetic TE trait across the wheat growing areas of Australia (5 year average of area planted to wheat) totaled AUD 631 MIL (5-year average wheat price of AUD/260 t) with an average of 187 kg/ha under the present climate. The benefit to an individual farmer will depend on location but elevated CO2 raises this nation-wide benefit to AUD 796 MIL in a 2 degrees C warmer climate, slightly lower (AUD 715 MIL) if rainfall is also reduced by 20%. PMID- 29331063 TI - Simultaneous pharmacokinetics and stability studies of physalins in rat plasma and intestinal bacteria culture media using liquid chromatography with mass spectrometry. AB - Physalins are the major steroidal constituent of Physalis plants and display a range of biological activities. For this study, a rapid and sensitive high performance liquid chromatography with triple quadrupole mass spectrometry method was developed for the simultaneous quantification of six physalins. Specifically, it was for the quantification of physalin A, physalin B, physalin D, physalin G, 4,7-didehydroneophysalin B, and isophysalin B in rat plasma and rat intestinal bacteria. After a solid-phase extraction, analytes and internal standards (prednisolone) were separated on a Shield reverse-phase C18 column (measuring 3 mm * 150 mm with an internal diameter of 3.5 MUm) and determined using multiple reactions in a monitoring mode with a positive-ion electrospray ionization source. The mobile phase was a mixture of 0.1% formic acid in water (A) and acetonitrile (B) and was used at a flow rate of 0.6 mL/min. The intra- and interday precisions were within 15% with accuracies ranging from 86.2 to 114%. The method was validated and successfully applied to pharmacokinetics and stability studies of six physalins in rat plasma and rat intestinal bacteria, respectively. The results showed that physalin B and isophysalin B could not be absorbed by rats, and rat intestinal bacteria could quickly transform physalins. PMID- 29331064 TI - Controlling the Temporal Structure of Brain Oscillations by Focused Attention Meditation. AB - Our focus of attention naturally fluctuates between different sources of information even when we desire to focus on a single object. Focused attention (FA) meditation is associated with greater control over this process, yet the neuronal mechanisms underlying this ability are not entirely understood. Here, we hypothesize that the capacity of attention to transiently focus and swiftly change relates to the critical dynamics emerging when neuronal systems balance at a point of instability between order and disorder. In FA meditation, however, the ability to stay focused is trained, which may be associated with a more homogeneous brain state. To test this hypothesis, we applied analytical tools from criticality theory to EEG in meditation practitioners and meditation-naive participants from two independent labs. We show that in practitioners-but not in controls-FA meditation strongly suppressed long-range temporal correlations (LRTC) of neuronal oscillations relative to eyes-closed rest with remarkable consistency across frequency bands and scalp locations. The ability to reduce LRTC during meditation increased after one year of additional training and was associated with the subjective experience of fully engaging one's attentional resources, also known as absorption. Sustained practice also affected normal waking brain dynamics as reflected in increased LRTC during an eyes-closed rest state, indicating that brain dynamics are altered beyond the meditative state. Taken together, our findings suggest that the framework of critical brain dynamics is promising for understanding neuronal mechanisms of meditative states and, specifically, we have identified a clear electrophysiological correlate of the FA meditation state. PMID- 29331065 TI - Component-resolved diagnostics to direct in venom immunotherapy: Important steps towards precision medicine. AB - Stings of Hymenoptera can induce IgE-mediated systemic and even fatal allergic reactions. Venom-specific immunotherapy (VIT) is the only disease-modifying and curative treatment of venom allergy. However, choosing the correct venom for VIT represents a necessary prerequisite for efficient protection against further anaphylactic sting reactions after VIT. In the past, therapeutic decisions based on the measurement of specific IgE (sIgE) levels to whole venom extracts were not always straightforward, especially when the patient was not able to identify the culprit insect. In the last years, the increasing knowledge about the molecular structure and relevance of important venom allergens and their availability as recombinant allergens, devoid of cross-reactive carbohydrate determinants, resulted in the development of an advanced component-resolved diagnostics (CRD) approach in venom allergy. Already to date, CRD has increased the sensitivity of sIgE detection and enabled the discrimination between primary sensitization and cross-reactivity, particularly in patients with sensitization to both honeybee and vespid venom. Hence, CRD in many patients improves the selection of the appropriate immunotherapeutic intervention. Moreover, the detailed knowledge about sensitization profiles on a molecular level might open new options to identify patients who are at increased risk of side-effects or not to respond to immunotherapy. Therefore, increasing potential of CRD becomes evident, to direct therapeutic decisions in a personalized and patient-tailored manner. Reviewed here are the state of the art options, recent developments and future perspectives of CRD of Hymenoptera venom allergy. PMID- 29331068 TI - A fixed partial epithelial-mesenchymal transition (EMT) triggers carcinogenesis, whereas asymmetrical division of hybrid EMT cells drives cancer progression. PMID- 29331066 TI - Strong evidence for changing fish reproductive phenology under climate warming on the Tibetan Plateau. AB - Phenological responses to climate change have been widely observed and have profound and lasting effects on ecosystems and biodiversity. However, compared to terrestrial ecosystems, the long-term effects of climate change on species' phenology are poorly understood in aquatic ecosystems. Understanding the long term changes in fish reproductive phenology is essential for predicting population dynamics and for informing management strategies, but is currently hampered by the requirement for intensive field observations and larval identification. In this study, a very low-frequency sampling of juveniles and adults combined with otolith measurements (long axis length of the first annulus; LAFA) of an endemic Tibetan Plateau fish (Gymnocypris selincuoensis) was used to examine changes in reproductive phenology associated with climate changes from the 1970s to 2000s. Assigning individual fish to their appropriate calendar year class was assisted by dendrochronological methods (crossdating). The results demonstrated that LAFA was significantly and positively associated with temperature and growing season length. To separate the effects of temperature and the growing season length on LAFA growth, measurements of larval otoliths from different sites were conducted and revealed that daily increment additions were the main contributor (46.3%), while temperature contributed less (12.0%). Using constructed water-air temperature relationships and historical air temperature records, we found that the reproductive phenology of G. selincuoensis was strongly advanced in the spring during the 1970s and 1990s, while the increased growing season length in the 2000s was mainly due to a delayed onset of winter. The reproductive phenology of G. selincuoensis advanced 2.9 days per decade on average from the 1970s to 2000s, and may have effects on recruitment success and population dynamics of this species and other biota in the ecosystem via the food web. The methods used in this study are applicable for studying reproductive phenological changes across a wide range of species and ecosystems. PMID- 29331069 TI - Cellular Membrane Trafficking Machineries Used by the Hepatitis Viruses. AB - While the life cycles of hepatitis viruses (A, B, C, D, and E) have been modestly characterized, recent intensive studies have provided new insights. Because these viruses "hijack" the membrane trafficking of the host cell machinery during replicative propagation, it is essential to determine and understand these specific cellular pathways. Hepatitis B virus (HBV) and hepatitis C virus are well known as leading causes of liver cirrhosis and hepatocellular carcinoma. While substantial inroads toward treating hepatitis C virus patients have recently been made, patients with HBV continue to require lifelong treatment, which makes a thorough understanding of the HBV life cycle essential. Importantly, these viruses have been observed to "hijack" the secretory and endocytic membrane trafficking machineries of the hepatocyte. These can include the canonical clathrin-mediated endocytic process that internalizes virus through cell surface receptors. While these receptors are encoded by the host genome for normal hepatocellular functions, they also exhibit virus-specific recognition. Further, functions provided by the multivesicular body, which include endosomal sorting complexes required for transport, are now known to envelope a variety of different hepatitis viruses. In this review, we summarize the recent findings regarding the cellular membrane trafficking machineries used by HBV in the context of other hepatitis viruses. (Hepatology 2018; 00:000-000). PMID- 29331070 TI - How does dose impact on the severity of food-induced allergic reactions, and can this improve risk assessment for allergenic foods?: Report from an ILSI Europe Food Allergy Task Force Expert Group and Workshop. AB - Quantitative risk assessment (QRA) for food allergens has made considerable progress in recent years, yet acceptability of its outcomes remains stymied because of the limited extent to which it has been possible to incorporate severity as a variable. Reaction severity, particularly following accidental exposure, depends on multiple factors, related to the allergen, the host and any treatments, which might be administered. Some of these factors are plausibly still unknown. Quantitative risk assessment shows that limiting exposure through control of dose reduces the rates of reactions in allergic populations, but its impact on the relative frequency of severe reactions at different doses is unclear. Food challenge studies suggest that the relationship between dose of allergenic food and reaction severity is complex even under relatively controlled conditions. Because of these complexities, epidemiological studies provide very limited insight into this aspect of the dose-response relationship. Emerging data from single-dose challenges suggest that graded food challenges may overestimate the rate of severe reactions. It may be necessary to generate new data (such as those from single-dose challenges) to reliably identify the effect of dose on severity for use in QRA. Success will reduce uncertainty in the susceptible population and improve consumer choice. PMID- 29331071 TI - Hepatic PPARalpha function is controlled by polyubiquitination and proteasome mediated degradation through the coordinated actions of PAQR3 and HUWE1. AB - : Peroxisome proliferator-activated receptor alpha (PPARalpha) is a key transcriptional factor that regulates hepatic lipid catabolism by stimulating fatty acid oxidation and ketogenesis in an adaptive response to nutrient starvation. However, how PPARalpha is regulated by posttranslational modification is poorly understood. In this study, we identified that progestin and adipoQ receptor 3 (PAQR3) promotes PPARalpha ubiquitination through the E3 ubiquitin ligase HUWE1, thereby negatively modulating PPARalpha functions both in vitro and in vivo. Adenovirus-mediated Paqr3 knockdown and liver-specific deletion of the Paqr3 gene reduced hepatic triglyceride levels while increasing fatty acid oxidation and ketogenesis upon fasting. PAQR3 deficiency enhanced the fasting induced expression of PPARalpha target genes, including those involved in fatty acid oxidation and fibroblast growth factor 21, a key molecule that mediates the metabolism-modulating effects of PPARalpha. PAQR3 directly interacted with PPARalpha and increased the polyubiquitination and proteasome-mediated degradation of PPARalpha. Furthermore, the E3 ubiquitin ligase HUWE1 was identified to mediate PPARalpha polyubiquitination. Additionally, PAQR3 enhanced the interaction between HUWE1 and PPARalpha. CONCLUSION: Ubiquitination modification through the coordinated action of PAQR3 with HUWE1 plays a crucial role in regulating the activity of PPARalpha in response to starvation. (Hepatology 2018;68:289-303). PMID- 29331072 TI - Transcranial Ultrasonographic Image Analysis System for Decision Support in Parkinson Disease. AB - OBJECTIVES: Transcranial ultrasonography (US) is a relatively new neuroimaging modality proposed for early diagnostics of Parkinson disease (PD). The main limitation of transcranial US image-based diagnostics is a high degree of subjectivity caused by low quality of the transcranial images. The article presents a developed image analysis system and evaluates the potential of automated image analysis on transcranial US. METHODS: The system consists of algorithms for the segmentation and assessment of informative brain regions (midbrain and substantia nigra) and a decision support subsystem, which is equipped with 64 classification algorithms. Transcranial US images of 191 participants (118 patients with a clinical PD diagnosis and 73 healthy control participants) were analyzed. RESULTS: The diagnostic sensitivity and specificity achieved by the proposed system were 85% and 75%, respectively. CONCLUSIONS: Digital transcranial US image analysis is challenging, and the application of a such system as the sole instrument for decisions in clinical practice remains inconclusive. However, the proposed system could be used as a supplementary tool for automated assessment of US parameters for decision support in PD diagnostics and to reduce observer variability. PMID- 29331073 TI - Cerebrospinal fluid macrophage biomarkers in amyotrophic lateral sclerosis. AB - OBJECTIVE: The neurodegenerative disease, amyotrophic lateral sclerosis (ALS), is a heterogeneous clinical syndrome involving multiple molecular pathways. The development of biomarkers for use in therapeutic trials is a priority. We sought to use a high-throughput proteomic method to identify novel biomarkers in individual cerebrospinal fluid (CSF) samples. METHODS: Liquid chromatography/tandem mass spectrometry with label-free quantification was used to identify CSF proteins using samples from a well-characterized longitudinal cohort comprising patients with ALS (n = 43), the upper motor neuron variant, primary lateral sclerosis (PLS; n = 6), and cross-sectional healthy (n = 20) and disease controls (Parkinsons' disease, n = 20; ALS mimic disorders, n = 12). RESULTS: Three macrophage-derived chitinases showed increased abundance in ALS: chitotriosidase (CHIT1), chitinase-3-like protein 1 (CHI3L1), and chitinase-3 like protein 2 (CHI3L2). Elevated CHI3L1 was common to ALS and PLS, whereas CHIT1 and CHI3L2 levels differed. Chitinase levels correlated with disease progression rate (CHIT1, r = 0.56, p < 0.001; CHI3L1, r = 0.31; p = 0.028; CHI3L2, r = 0.29, p = 0.044). CHIT1, CHI3L1, and CHI3L2 levels correlated with phosphorylated neurofilament heavy chain (pNFH; r = 0.62, p < 0.001; r = 0.49, p < 0.001; r = 0.41, p < 0.001). CHI3L1 levels, but not CHIT1 or CHI3L2, increased over time in those with low initial levels (gradient = 0.005 log abundance units/month, p = 0.001). High CHIT1 was associated with shortened survival (hazard ratio [HR] 2.84; p = 0.009). Inclusion of pNFH in survival models left only an association of pNFH and survival (HR 1.26; p = 0.019). INTERPRETATION: Neuroinflammatory mechanisms have been consistently implicated through various experimental paradigms. These results support a key role for macrophage activity in ALS pathogenesis, offering novel target engagement and pharmacodynamic biomarkers for neuroinflammation-focused ALS therapy. Ann Neurol 2018;83:258-268. PMID- 29331074 TI - Cryopyrin-associated periodic syndrome in early childhood can be successfully treated with interleukin-1 blockades. AB - : Cryopyrin-associated periodic syndrome (CAPS) is caused by a mutation in the NLRP3 gene encoding cryopyrin production. Overproduction of interleukin-1 (IL-1) leads to symptoms that are associated with elevated inflammatory markers, including periodic fever and a rash. We provide a clinical overview of CAPS in children, including three Finnish case studies. CONCLUSION: When CAPS has been diagnosed, an IL-1 blockade with biological should be introduced to lessen the symptoms and to prevent the progression of organ damage. PMID- 29331075 TI - An examination of the clinical outcomes of adolescents and young adults with broad autism spectrum traits and autism spectrum disorder and anorexia nervosa: A multi centre study. AB - OBJECTIVES: To compare the clinical outcomes of adolescents and young adults with anorexia nervosa (AN) comorbid with broad autism spectrum disorder (ASD) or ASD traits. METHOD: The developmental and well-being assessment and social aptitude scale were used to categorize adolescents and young adults with AN (N = 149) into those with ASD traits (N = 23), and those who also fulfilled diagnostic criteria for a possible/probable ASD (N = 6). We compared both eating disorders specific measures and broader outcome measures at intake and 12 months follow-up. RESULTS: Those with ASD traits had significantly more inpatient/day-patient service use (p = .015), as well as medication use (p < .001) at baseline. Both groups had high social difficulties and poorer global functioning (strengths and difficulties questionnaire) at baseline, which improved over time but remained higher at 12 months in the ASD traits group (p = .002). However, the improvement in eating disorder symptoms at 12 months was similar between groups with or without ASD traits. Treatment completion rates between AN only and ASD traits were similar (80.1 vs. 86.5%). DISCUSSION: Adolescents with AN and ASD traits show similar reductions in their eating disorder symptoms. Nevertheless, their social difficulties remain high suggesting that these are life-long difficulties rather than starvation effects. PMID- 29331076 TI - Submental artery island flap with simultaneous level I neck dissection. AB - BACKGROUND: The purpose of this study was to illustrate the submental island flap elevation technique with simultaneous level I neck dissection followed by the inset and reconstruction of an oropharyngeal defect. METHODS: A 63-year-old patient with a T2N1M0 human papillomavirus-positive squamous cell carcinoma of the tonsil was treated with concurrent chemoradiotherapy (cisplatin + 66 Gy). A local recurrence 2.5 years after treatment was treated surgically and reconstructed with a submental island flap. RESULTS: There were no complications and oral diet was initiated at 2 weeks and the gastrostomy tube was removed 1 month postoperatively. A video demonstration of the submental island flap elevation is included with a focus on how levels 1A and 1B can be dissected safely and this can be viewed online on Head & Neck's home page at http://onlinelibrary.wiley.com/. CONCLUSION: The submental island flap can be performed safely with a level I neck dissection for head and neck reconstruction. PMID- 29331078 TI - Primary biliary cholangitis, DNA, and beyond: The Relative contribution of genes. PMID- 29331077 TI - Optimized paired-sgRNA/Cas9 cloning and expression cassette triggers high efficiency multiplex genome editing in kiwifruit. AB - Kiwifruit is an important fruit crop; however, technologies for its functional genomic and molecular improvement are limited. The clustered regulatory interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein (Cas) system has been successfully applied to genetic improvement in many crops, but its editing capability is variable depending on the different combinations of the synthetic guide RNA (sgRNA) and Cas9 protein expression devices. Optimizing conditions for its use within a particular species is therefore needed to achieve highly efficient genome editing. In this study, we developed a new cloning strategy for generating paired-sgRNA/Cas9 vectors containing four sgRNAs targeting the kiwifruit phytoene desaturase gene (AcPDS). Comparing to the previous method of paired-sgRNA cloning, our strategy only requires the synthesis of two gRNA-containing primers which largely reduces the cost. We further compared efficiencies of paired-sgRNA/Cas9 vectors containing different sgRNA expression devices, including both the polycistronic tRNA-sgRNA cassette (PTG) and the traditional CRISPR expression cassette. We found the mutagenesis frequency of the PTG/Cas9 system was 10-fold higher than that of the CRISPR/Cas9 system, coinciding with the relative expressions of sgRNAs in two different expression cassettes. In particular, we identified large chromosomal fragment deletions induced by the paired-sgRNAs of the PTG/Cas9 system. Finally, as expected, we found both systems can successfully induce the albino phenotype of kiwifruit plantlets regenerated from the G418-resistance callus lines. We conclude that the PTG/Cas9 system is a more powerful system than the traditional CRISPR/Cas9 system for kiwifruit genome editing, which provides valuable clues for optimizing CRISPR/Cas9 editing system in other plants. PMID- 29331079 TI - LMOD3-Associated Nemaline Myopathy: Prenatal Ultrasonographic, Pathologic, and Molecular Findings. AB - To describe the prenatal presentation, including ultrasonographic, histologic, and molecular findings, in 2 fetuses affected with LMOD3-related nemaline myopathy. Prenatal ultrasonographic examinations and histopathologic studies were performed on 2 fetuses with evidence of nemaline myopathy. To establish a molecular diagnosis, whole-exome sequencing was pursued for the affected fetuses. Nemaline myopathy is a common form of congenital myopathy manifesting with nonprogressive generalized muscle weakness, hypotonia, and electron-dense protein inclusions in skeletal myofibers. Although clinically, nemaline myopathy can be viewed as a common pathway phenotype, its molecular basis is heterogeneous, with mutations in 11 identified genes implicated in its pathogenesis so far. Whole exome sequencing revealed that the affected fetuses were compound heterozygous for 2 newly reported pathogenic variants in the LMOD3 gene, which encodes leiomodin 3. To our knowledge, this article is the first report of LMOD3-related nemaline myopathy since the original reported cohort. We provide a detailed description of the prenatal imaging of these affected fetuses, which we hope, in combination with next-generation sequencing, may contribute to further diagnosis in additional families. PMID- 29331080 TI - Design, Synthesis and Evaluation of Oxazaborine Inhibitors of the NLRP3 Inflammasome. AB - The NLRP3 inflammasome is an important regulator of the sterile inflammatory response, and its activation by host-derived sterile molecules leads to the intracellular activation of caspase-1, processing of the pro-inflammatory cytokines interleukin-1beta (IL-1beta)/IL-18, and pyroptotic cell death. Inappropriate activation of NLRP3 drives a chronic inflammatory response and is implicated in several non-communicable diseases, including gout, atherosclerosis, type II diabetes and Alzheimer's disease. In this study, we report the design, synthesis and biological evaluation of novel boron compounds (NBCs) as NLRP3 inflammasome inhibitors. Structure-activity relationships (SAR) show that 4 fluoro substituents on the phenyl rings retain NLRP3 inhibitory activity, whereas more steric and lipophilic substituents diminish activity. Loss of inhibitory activity is also observed if the CCl3 group on the oxazaborine ring is replaced by a CF3 group. These findings provide additional understanding of the NBC series and will aid in the development of these NLRP3 inhibitors as tool compounds or therapeutic candidates for sterile inflammatory diseases. PMID- 29331081 TI - Quantitative [Fe]MRI determination of the dynamics of PSMA-targeted SPIONs discriminates among prostate tumor xenografts based on their PSMA expression. AB - BACKGROUND: There is a need for a quantitative MRI method for iron concentration magnetic resonance imaging suitable for measuring the delivery of targeted superparamagnetic iron oxide nanoparticles (SPIONs) to tumors. PURPOSE: To apply our newly developed [Fe]MRI method to the quantitative imaging in both space and time of the iron dynamics of anti-prostate specific membrane antigen (PSMA) conjugated SPIONs within human prostate tumor xenografts in nude mice. STUDY TYPE: Longitudinal. ANIMAL MODEL: 45 Harlan Sprague Dawley athymic nude mice bearing xenografts from PSMA-positive LNCaP, C4-2 and PSMA-negative DU145 tumors from human prostate tumor cell lines. FIELD STRENGTH/SEQUENCE: 1.0 Tesla/ T1 and T2 weighted spin echo. ASSESSMENT: Image intensity and contrast measurements. STATISTICAL TESTS: Student's t-test. RESULTS: The SPION diffusion coefficient within tumors was D = 44.8 +/- 2.4 * 10-6 mm2 /s. The iron taken up by PSMA positive LNCaP and C4-2 tumors was proportional to the tail-vein injected dose from 60 nmol to 1.6 MUmol; injection of 1 MUmol of iron in anti-PSMA conjugated SPIONs resulted in a tumor [Fe] of 76 MUM. Even at the highest iron dose of 1.6 MUmol, the PSMA-negative DU145 tumors took up no significant iron from the anti PSMA conjugated SPIONs. A similar lack of nonspecific uptake was observed when the antibodies against PSMA were omitted from the injected SPION preparation. The fraction of the initial iron dose that was taken up by PSMA-positive tumors was 2.32 +/- 0.75% (n = 10); uptake by the PSMA-negative DU145 tumors and for SPIONs without anti-PSMA antibodies was 0.16 +/- 0.34% (n = 7) giving a ratio of [Fe] in PSMA + versus PSMA- tumors greater than 15:1 (P = 0.01). DATA CONCLUSION: Quantitative [Fe]MRI of anti-PSMA conjugated SPIONs discriminated between PSMA positive LNCaP and C4-2 and PSMA-negative DU145 human prostate tumor xenografts in vivo. LEVEL OF EVIDENCE: 1 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2017. J. MAGN. RESON. IMAGING 2018;48:469-481. PMID- 29331083 TI - Variation in reproductive outcomes of women with histories of bulimia nervosa, anorexia nervosa, or eating disorder not otherwise specified relative to the general population and closest-aged sisters. AB - OBJECTIVE: This study seeks to examine the long-term reproductive consequences of eating disorders (ED), to assess variation in reproductive outcomes by ED type, and to examine reproductive differences between women with previous ED diagnosis and their discordant sisters. METHOD: Using a sample of women with previous ED diagnosis generated by the Utah Population Database, this study compares the fecundity (parity) and age at first birth of women by ED subtype (bulimia nervosa [BN], anorexia nervosa [AN], and ED not otherwise specified [EDNOS]) (n = 1,579). We also employed general population match case-control, and discordant sibling pair analyses, to estimate the magnitude of association between EDs and reproductive outcomes. RESULTS: Women previously diagnosed with AN or EDNOS experienced delayed first birth (HRR = 0.33, HRR = 0.34, respectively) and lower parity (IRR = 0.19, IRR = 0.22, respectively) relative to BN (p < .05), the general population (p < .05), and closest-aged sisters (p < .05). Women previously diagnosed with BN experienced more moderate reductions and delays to their reproduction, and had similar reproductive outcomes as their discordant sisters. DISCUSSION: Clinicians should consider ED type and family fertility histories when addressing the long-term reproductive health needs of women with prior AN, BN, or EDNOS diagnosis. Women previously diagnosed with AN or EDNOS likely experience the greatest reductions and delays in reproduction across their lifespan. Reproductive health screenings may be especially critical for the wellbeing of women with a history of AN or EDNOS. PMID- 29331082 TI - Mechanistic target of rapamycin complex 1 and 2 in human temporal lobe epilepsy. AB - OBJECTIVE: Temporal lobe epilepsy (TLE) is a chronic epilepsy syndrome defined by seizures and progressive neurological disabilities, including cognitive impairments, anxiety, and depression. Here, human TLE specimens were investigated focusing on the mechanistic target of rapamycin (mTOR) complex 1 (mTORC1) and complex 2 (mTORC2) activities in the brain, given that both pathways may represent unique targets for treatment. METHODS: Surgically resected hippocampal and temporal lobe samples from therapy-resistant TLE patients were analyzed by western blotting to quantify the expression of established mTORC1 and mTORC2 activity markers and upstream or downstream signaling pathways involving the two complexes. Histological and immunohistochemical techniques were used to assess hippocampal and neocortical structural abnormalities and cell-specific expression of individual biomarkers. Samples from patients with focal cortical dysplasia (FCD) type II served as positive controls. RESULTS: We found significantly increased expression of phospho-mTOR (Ser2448), phospho-S6 (Ser235/236), phospho S6 (Ser240/244), and phospho-Akt (Ser473) in TLE samples compared to controls, consistent with activation of both mTORC1 and mTORC2. Our work identified the phosphoinositide 3-kinase and Ras/extracellular signal-regulated kinase signaling pathways as potential mTORC1 and mTORC2 upstream activators. In addition, we found that overactive mTORC2 signaling was accompanied by induction of two protein kinase B-dependent prosurvival pathways, as evidenced by increased inhibitory phosphorylation of forkhead box class O3a (Ser253) and glycogen synthase kinase 3 beta (Ser9). INTERPRETATION: Our data demonstrate that mTOR signaling is significantly dysregulated in human TLE, offering new targets for pharmacological interventions. Specifically, clinically available drugs that suppress mTORC1 without compromising mTOR2 signaling, such as rapamycin and its analogs, may represent a new group of antiepileptogenic agents in TLE patients. Ann Neurol 2018;83:311-327. PMID- 29331084 TI - British Association of Urological Surgeons (BAUS) consensus document for the management of male genital emergencies - penile amputation. AB - Male genital emergencies relating to the penis and scrotum are rare and require prompt investigation and surgical intervention. Clinicians are often unfamiliar with the management of these conditions and may not work in a specialist centre with on-site expertise in genitourethral surgery. A series of consensus statements have been developed by an expert consensus committee comprising members of the British Association of Urological Surgeons (BAUS) Section of Andrology and Genitourethral Surgery together with experts from urology units throughout the UK. Penile amputation is a rare genital emergency, which requires prompt intervention and microsurgical reconstruction. The consensus statements will outline the management of these cases for non-specialist units, as well as recommendations for reconstruction for specialists. PMID- 29331085 TI - Verification of DNA motifs in Arabidopsis using CRISPR/Cas9-mediated mutagenesis. AB - Transcription factors (TFs) and chromatin-modifying factors (CMFs) access chromatin by recognizing specific DNA motifs in their target genes. Chromatin immunoprecipitation followed by next-generation sequencing (ChIP-seq) has been widely used to discover the potential DNA-binding motifs for both TFs and CMFs. Yet, an in vivo method for verifying DNA motifs captured by ChIP-seq is lacking in plants. Here, we describe the use of clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated 9 (Cas9) to verify DNA motifs in their native genomic context in Arabidopsis. Using a single-guide RNA (sgRNA) targeting the DNA motif bound by REF6, a DNA sequence-specific H3K27 demethylase in plants, we generated stable transgenic plants where the motif was disrupted in a REF6 target gene. We also deleted a cluster of multiple motifs from another REF6 target gene using a pair of sgRNAs, targeting upstream and downstream regions of the cluster, respectively. We demonstrated that endogenous genes with motifs disrupted and/or deleted become inaccessible to REF6. This strategy should be widely applicable for in vivo verification of DNA motifs identified by ChIP seq in plants. PMID- 29331086 TI - Current management of small bowel obstruction in the UK: results from the National Audit of Small Bowel Obstruction clinical practice survey. AB - AIM: Small bowel obstruction (SBO) is associated with high rates of morbidity and mortality. The National Audit of Small Bowel Obstruction (NASBO) is a collaboration between trainees and specialty associations to improve the care of patients with SBO through national clinical audit. The aim of this study was to define current consultant practice preferences in the management of SBO in the UK. METHOD: A survey was designed to assess practice preferences of consultant surgeons. The anonymous survey captured demographics, indications for surgery or conservative management, use of investigations including water-soluble contrast agents (WSCA), use of laparoscopy and nutritional support strategies. The questionnaire underwent two pilot rounds prior to dissemination via the NASBO network. RESULTS: A total of 384 responses were received from 131 NASBO participating units (overall response rate 29.2%). Abdominal CT and serum urea and electrolytes were considered essential initial investigations by more than 80% of consultants. Consensus was demonstrated on indications for early surgery and conservative management. Three hundred and thirty-eight (88%) respondents would consider use of WSCA; of these, 328 (97.1%) would use it in adhesive SBO. Two hundred (52.1%) consultants considered a laparoscopic approach when operating for SBO. Oral nutritional supplements were favoured in operatively managed patients by 259 (67.4%) respondents compared with conservatively managed patients (186 respondents, 48.4%). CONCLUSION: This survey demonstrates consensus on imaging requirements and indications for early surgery in the management of SBO. Significant variation exists around awareness of the need for nutritional support in patients with SBO, and on strategies to achieve this support. PMID- 29331087 TI - Outdoor pollen is a trigger of child and adolescent asthma emergency department presentations: A systematic review and meta-analysis. AB - BACKGROUND: In the context of increased asthma exacerbations associated with climatic changes such as thunderstorm asthma, interest in establishing the link between pollen exposure and asthma hospital admissions has intensified. Here, we systematically reviewed and performed a meta-analysis of studies on pollen and emergency department (ED) attendance. METHODS: A search for studies with appropriate search strategy in MEDLINE, EMBASE, Web of Science and CINAHL was conducted. Each study was assessed for quality and risk of bias. The available evidence was summarized both qualitatively and meta-analysed using random-effects models when moderate heterogeneity was observed. RESULTS: Fourteen studies were included. The pollen taxa investigated differed between studies, allowing meta analysis only of the effect of grass pollen. A statistically significant increase in the percentage change in the mean number of asthma ED presentations (MPC) (pooled results from 3 studies) was observed for an increase in 10 grass pollen grains per cubic metre of exposure 1.88% (95% CI = 0.94%, 2.82%). Time series studies showed positive correlations between pollen concentrations and ED presentations. Age-stratified studies found strongest associations in children aged 5-17 years old. CONCLUSION: Exposure to ambient grass pollen is an important trigger for childhood asthma exacerbations requiring ED attendance. As pollen exposure is increasingly a problem especially in relation to thunderstorm asthma, studies with uniform measures of pollen and similar analytical methods are necessary to fully understand its impact on human health. PMID- 29331088 TI - Significance of circulatory DPP4 activity in metabolic diseases. AB - Dipeptidyl peptidase 4 (DPP4), also known as CD26 is a type II transmembrane protein that is released from the cell membrane in a nonclassical secretory mechanism. This exopeptidase selectively degrades varieties of substrates including incretin hormones, growth factors, and cytokines. A significant detectable amount of DPP4 activity can be measured in plasma as well as in different tissues such as intestinal epithelium, vascular endothelium, lymphocytes, monocytes, kidney, liver, adipose, lung, thymus, spleen, prostate, etc. Enzymatically active circulatory DPP4 is shed from the plasma membrane via proteolytic cleavage, a process responsible for the enhanced plasma DPP4 levels and activity. Elevated circulatory DPP4 activity as well as levels has been found in wide spectrum of metabolic diseases including diabetes, obesity, cardiovascular diseases, and nonalcoholic fatty liver diseases. Moreover, recent preclinical studies have further expanded the repertoire for the usage of DPP4 inhibitors in the treatment of other metabolic diseases and in their consequent complications. In the present review we highlight the reason behind the elevated circulatory DPP4 levels in metabolic diseases with a focus on the tissue of origin. We also underscore the discrepancy of protein levels with enzyme activity of circulatory DPP4 in metabolic diseases. (c) 2018 IUBMB Life, 70(2):112-119, 2018. PMID- 29331090 TI - Enhanced chondrogenesis of mesenchymal stem cells over silk fibroin/chitosan chondroitin sulfate three dimensional scaffold in dynamic culture condition. AB - Chondroitin sulfate (Ch) is one of the main structural components of cartilage tissue, therefore, its presence in tissue engineered scaffold is expected to enhance cartilage regeneration. Previously, silk fibroin/chitosan (SF/CS) blend was proven to be a potential biomaterial for tissue development. In this study, the effect of Ch on physicochemical and biological properties of SF/CS blend was investigated and scaffolds with 0.8 wt% Ch was found to be favorable. The scaffolds possess pore size of 37-212 um, contact angle 46.2-50.3 degrees , showed controlled swelling and biodegradation. The biocompatibility of scaffold was confirmed by subcutaneous implantation in mouse. Human mesenchymal stem cells (hMSCs) seeded scaffolds cultured under spinner flask bioreactor promoted cell attachment, proliferation, distribution, and metabolic activity in vitro. The histology and immunofluorescence studies revealed that combined effect of Ch and dynamic condition resulted in higher glycosaminoglycan secretion and native cartilage type matrix synthesis in comparison to SF/CS scaffolds used as control. Higher expression of collagen-II, Sox9, aggrecan and decrease in collagen-I expression represented by quantitative polymerase chain reaction study confirmed the progression of chondrogenic differentiation. This study successfully demonstrates the potentiality of SF/CS-Ch scaffold for hMSCs recruitment and redirecting cartilage tissue regeneration with enhanced chondrogenesis. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2576 2587, 2018. PMID- 29331089 TI - Modification of chrysanthemum odour and taste with chrysanthemol synthase induces strong dual resistance against cotton aphids. AB - Aphids are pests of chrysanthemum that employ plant volatiles to select host plants and ingest cell contents to probe host quality before engaging in prolonged feeding and reproduction. Changes in volatile and nonvolatile metabolite profiles can disrupt aphid-plant interactions and provide new methods of pest control. Chrysanthemol synthase (CHS) from Tanacetum cinerariifolium represents the first committed step in the biosynthesis of pyrethrin ester insecticides, but no biological role for the chrysanthemol product alone has yet been documented. In this study, the TcCHS gene was over-expressed in Chrysanthemum morifolium and resulted in both the emission of volatile chrysanthemol (ca. 47 pmol/h/gFW) and accumulation of a chrysanthemol glycoside derivative, identified by NMR as chrysanthemyl-6-O-malonyl-beta-D-glucopyranoside (ca. 1.1 mM), with no detrimental phenotypic effects. Dual-choice assays separately assaying these compounds in pure form and as part of the headspace and extract demonstrated independent bioactivity of both components against the cotton aphid (Aphis gossypii). Performance assays showed that the TcCHS plants significantly reduced aphid reproduction, consistent with disturbance of aphid probing activities on these plants as revealed by electropenetrogram (EPG) studies. In open-field trials, aphid population development was very strongly impaired demonstrating the robustness and high impact of the trait. The results suggest that expression of the TcCHS gene induces a dual defence system, with both repellence by chrysanthemol odour and deterrence by its nonvolatile glycoside, introducing a promising new option for engineering aphid control into plants. PMID- 29331091 TI - Terminal spreading depolarization and electrical silence in death of human cerebral cortex. AB - OBJECTIVE: Restoring the circulation is the primary goal in emergency treatment of cerebral ischemia. However, better understanding of how the brain responds to energy depletion could help predict the time available for resuscitation until irreversible damage and advance development of interventions that prolong this span. Experimentally, injury to central neurons begins only with anoxic depolarization. This potentially reversible, spreading wave typically starts 2 to 5 minutes after the onset of severe ischemia, marking the onset of a toxic intraneuronal change that eventually results in irreversible injury. METHODS: To investigate this in the human brain, we performed recordings with either subdural electrode strips (n = 4) or intraparenchymal electrode arrays (n = 5) in patients with devastating brain injury that resulted in activation of a Do Not Resuscitate Comfort Care order followed by terminal extubation. RESULTS: Withdrawal of life sustaining therapies produced a decline in brain tissue partial pressure of oxygen (pti O2 ) and circulatory arrest. Silencing of spontaneous electrical activity developed simultaneously across regional electrode arrays in 8 patients. This silencing, termed "nonspreading depression," developed during the steep falling phase of pti O2 (intraparenchymal sensor, n = 6) at 11 (interquartile range [IQR] = 7-14) mmHg. Terminal spreading depolarizations started to propagate between electrodes 3.9 (IQR = 2.6-6.3) minutes after onset of the final drop in perfusion and 13 to 266 seconds after nonspreading depression. In 1 patient, terminal spreading depolarization induced the initial electrocerebral silence in a spreading depression pattern; circulatory arrest developed thereafter. INTERPRETATION: These results provide fundamental insight into the neurobiology of dying and have important implications for survivable cerebral ischemic insults. Ann Neurol 2018;83:295-310. PMID- 29331094 TI - Solvent Impedes CO2 Cycloaddition on Metal-Organic Frameworks. AB - The catalytic performance of metal-organic frameworks (MOFs) for the synthesis of cyclic carbonate from carbon dioxide and epoxides has been explored under solvent and solvent-free conditions, respectively. It was found that MOF catalysts have significantly improved catalytic activities in solvent-free CO2 cycloaddition reactions than those in solvent. The mechanism was discussed with regard to the competition of solvent with substrate to adhere MOF catalysts during the reaction process. PMID- 29331092 TI - Deep gray matter volume loss drives disability worsening in multiple sclerosis. AB - OBJECTIVE: Gray matter (GM) atrophy occurs in all multiple sclerosis (MS) phenotypes. We investigated whether there is a spatiotemporal pattern of GM atrophy that is associated with faster disability accumulation in MS. METHODS: We analyzed 3,604 brain high-resolution T1-weighted magnetic resonance imaging scans from 1,417 participants: 1,214 MS patients (253 clinically isolated syndrome [CIS], 708 relapsing-remitting [RRMS], 128 secondary-progressive [SPMS], and 125 primary-progressive [PPMS]), over an average follow-up of 2.41 years (standard deviation [SD] = 1.97), and 203 healthy controls (HCs; average follow-up = 1.83 year; SD = 1.77), attending seven European centers. Disability was assessed with the Expanded Disability Status Scale (EDSS). We obtained volumes of the deep GM (DGM), temporal, frontal, parietal, occipital and cerebellar GM, brainstem, and cerebral white matter. Hierarchical mixed models assessed annual percentage rate of regional tissue loss and identified regional volumes associated with time-to EDSS progression. RESULTS: SPMS showed the lowest baseline volumes of cortical GM and DGM. Of all baseline regional volumes, only that of the DGM predicted time-to EDSS progression (hazard ratio = 0.73; 95% confidence interval, 0.65, 0.82; p < 0.001): for every standard deviation decrease in baseline DGM volume, the risk of presenting a shorter time to EDSS worsening during follow-up increased by 27%. Of all longitudinal measures, DGM showed the fastest annual rate of atrophy, which was faster in SPMS (-1.45%), PPMS (-1.66%), and RRMS (-1.34%) than CIS (-0.88%) and HCs (-0.94%; p < 0.01). The rate of temporal GM atrophy in SPMS (-1.21%) was significantly faster than RRMS (-0.76%), CIS (-0.75%), and HCs (-0.51%). Similarly, the rate of parietal GM atrophy in SPMS (-1.24-%) was faster than CIS (-0.63%) and HCs (-0.23%; all p values <0.05). Only the atrophy rate in DGM in patients was significantly associated with disability accumulation (beta = 0.04; p < 0.001). INTERPRETATION: This large, multicenter and longitudinal study shows that DGM volume loss drives disability accumulation in MS, and that temporal cortical GM shows accelerated atrophy in SPMS than RRMS. The difference in regional GM atrophy development between phenotypes needs to be taken into account when evaluating treatment effect of therapeutic interventions. Ann Neurol 2018;83:210-222. PMID- 29331093 TI - Sensitivity to audio-visual synchrony and its relation to language abilities in children with and without ASD. AB - : Autism Spectrum Disorder (ASD) is often accompanied by deficits in speech and language processing. Speech processing relies heavily on the integration of auditory and visual information, and it has been suggested that the ability to detect correspondence between auditory and visual signals helps to lay the foundation for successful language development. The goal of the present study was to examine whether young children with ASD show reduced sensitivity to temporal asynchronies in a speech processing task when compared to typically developing controls, and to examine how this sensitivity might relate to language proficiency. Using automated eye tracking methods, we found that children with ASD failed to demonstrate sensitivity to asynchronies of 0.3s, 0.6s, or 1.0s between a video of a woman speaking and the corresponding audio track. In contrast, typically developing children who were language-matched to the ASD group, were sensitive to both 0.6s and 1.0s asynchronies. We also demonstrated that individual differences in sensitivity to audiovisual asynchronies and individual differences in orientation to relevant facial features were both correlated with scores on a standardized measure of language abilities. Results are discussed in the context of attention to visual language and audio-visual processing as potential precursors to language impairment in ASD. Autism Res 2018, 11: 645-653. (c) 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Speech processing relies heavily on the integration of auditory and visual information, and it has been suggested that the ability to detect correspondence between auditory and visual signals helps to lay the foundation for successful language development. The goal of the present study was to explore whether children with ASD process audio-visual synchrony in ways comparable to their typically developing peers, and the relationship between preference for synchrony and language ability. Results showed that there are differences in attention to audiovisual synchrony between typically developing children and children with ASD. Preference for synchrony was related to the language abilities of children across groups. PMID- 29331095 TI - Household food insecurity and its association with morbidity report among school adolescent in Jimma zone, Ethiopia. AB - Background Household food insecurity has a substantial contribution to poor health outcomes among young children and adolescents. Food insecurity also affects optimal cognitive development and physiological function of these vulnerable groups. There is a gap of documented data regarding the association of food insecurity and morbidity among school adolescents in Ethiopia. Objective The aim of this study is to assess the interrelationship of household food insecurity and morbidity report among school adolescent in Jimma zone, Ethiopia. Methods A community based cross-sectional study was done from October to November, 2013. Data were gathered using structured questionnaires through interview of students and their caregivers. A total of 1000 students were selected by using simple random sampling methods using their rosters as a frame. Data were also checked for missing values and outliers, and analyzed using SPSS version 16.0. Regression analyses were used to see the strength of association between independent and dependent variables using odds ratios and 95% of confidence intervals. Results Adolescents from food insecure households had more reported illness (39.3%) than adolescents from food secure households (24.7%) (p < 0.001). Adolescents from food insecure households were two times more exposed to morbidity [AOR = 2.04(1.32, 3.14)] than adolescents from food secure households. This study also showed that males had 48% less reported illness [AOR = 0.52(0.01, 0.23)] than females. Adolescents who had attended health education had less reported illness [AOR = 0.57(0.38, 0.86)] than those who did not ever attend. This study also showed that having a farmer [AOR = 0.46(0.28, 0.74)] and government employee [AOR = 0.33 (0.17, 0.64)] father were inversely associated with adolescent morbidity. Conclusion The findings of this study showed that household food insecurity, female gender and lack of attending health education had a significant contribution to adolescent morbidity. Therefore, there is a need to improve household income earning capacity and strengthen school based health and nutrition education to prevent adolescent morbidity. The findings of this study can also be used to lead the development of programs aimed at preventing adolescent morbidity by notifying policymakers and other stakeholders about the association of morbidity with household food insecurity. PMID- 29331096 TI - Promoting physical activity and improving dietary quality of Singaporean adolescents: effectiveness of a school-based fitness and wellness program. AB - Limited data are available on the effectiveness of the school-based structured fitness and wellness program to influence dietary quality and physical activity levels in Singaporean adolescents. The study examined if a 20-h (over 10 weeks) school-based structured fitness and wellness module affects the diet quality indices, energy intakes, physical activity levels and the associated energy expenditures in a group of healthy, male adolescents with low diet quality and physical activity levels. Participant demography, anthropometry, dietary intake and daily physical activity were obtained at the beginning, mid-point and end of the 10-week program. Physical activity levels were assessed accelerometrically over a 1-weekday period. Dietary intake were taken using a structured 7-day food diary, and diet quality assessed using the Diet Quality Index-International (DQI I). The 31 enrolled participants (age 19.8 +/- 0.6 years) with body mass index (BMI) (19.8 +/- 0.6 kg/m2) followed diets of low diet quality scores (48.3 +/- 9.6 out of 100) and engaged in 3.87 +/- 2.00 h of physical activity daily before the start of the intervention. Their dietary quality and physical activity levels did not change significantly throughout the intervention period. They scored poorly in the moderation and overall balance components of the diet quality assessment. The physical activity duration correlated inversely to the diet quality scores. Our results suggest that the prescribed school-based fitness and wellness module was ineffective in influencing the diet quality and physical activity levels of Singaporean male adolescents with low diet quality and physical activity levels. PMID- 29331097 TI - Vigorous physical activity, perceived stress, sleep and mental health among university students from 23 low- and middle-income countries. AB - Background Vigorous physical activity (VPA) may be beneficial for mental health. The aim of the study was to investigate cross-sectional associations between VPA, perceived stress, sleep quality and quantity and mental health among university students. Methods In a cross-sectional study, using anonymous questionnaires, data was collected from 15122 (42.1% male and 57.9% female) university students [mean age 20.6, standard deviation (SD) = 2.0] from 23 countries in the Americas, Africa and Asia. They were assessed using the International Physical Activity Questionnaire (short version), and measures of sociodemographic, health status, health behaviour and anthropometrics. Results Students who met VPA recommendations were less likely to report perceived stress, more likely to report subjective good health and depression than students without VPA. There was no association between VPA and sleep quality and quantity and PTSD symptoms. Conclusion This study only found partial benefits of VPA in relation to well being of university students. PMID- 29331098 TI - Blunted cortisol reactivity and risky driving in young offenders - a pilot study. AB - Adolescent risky driving is a significant burden on public health. Young offenders (i.e. under custody and supervision of the criminal justice system) may be particularly vulnerable, but research is scant. Previous work indicated that blunted cortisol reactivity to stress is a marker of risk-taking predisposition, including risky driving. In this study, we hypothesized that young offenders display higher levels of risky driving than a non-offender comparison group, and that cortisol reactivity contributes to the variance in risky driving independent of other associated characteristics (i.e. impulsivity, risk taking, alcohol and drug use). We found that young offenders (n = 20) showed riskier driving in simulation than comparison group (n = 9), and blunted cortisol reactivity was significantly associated with risky driving. The results suggest young offenders are prone to risky driving, and that individual differences in the cortisol stress response may be an explanatory factor. PMID- 29331099 TI - Adaptation and validation of the disruptive behaviour disorders teacher rating scale as a screening tool for early detection of disruptive behaviour disorders in schools in a lower-middle income setting. AB - Background Despite the need to curb the menace resulting from the negative trajectory of disruptive behaviour disorders (DBD) in societies of the world today, there is yet a dearth of locally standardised tools for the early detection of these disorders in Nigeria. This study was aimed at standardising the DBD teacher rating scale (DBD-TRS) to be culturally specific using teachers' ratings of their students. Objectives To establish norm scores for the three categories of DBD on the DBD-TRS, to evaluate the reliability, validity, predictive power, sensitivity and specificity of DBD-TRS items for identifying DBD symptoms amongst children/adolescents between the ages of 4 and 16 years. Methods A cross-sectional survey of the five divisions of Lagos was conducted using multi-stage sampling technique. A randomly selected sample of teachers from a selection of regular schools across the five divisions of Lagos retrospectively rated systematically selected samples of their students in absentia; by referring to the names in their class registers for the recently concluded school session. The DBD-TRS and the previously validated strengths and difficulties questionnaire (SDQ) were used for the ratings. Results Ratings were completed for 1508 children/adolescents by 197 teachers from 30 regular schools. The norm scores for the three categories of DBD were determined by gender, age, and grade/class. Satisfactory psychometric properties were established for the DBD rating scale. All DBD items had high negative predictive power and positive predictive power, high specificity, and low false positive rates. However, ADHD items had lower PPP (0.23-0.55). Conclusion The DBD rating scale demonstrated sufficient technical merits to be used as a preliminary tool for identifying children that may require further clinical evaluation by mental health experts for behavioural disorders. PMID- 29331100 TI - Prevalence, associated factors, and control level of asthma symptoms among adolescents in Northern Jordan. AB - Objective To investigate the prevalence, associated factors, and control level of asthma in Jordanian high school students. Methods A descriptive, comparative, cross sectional design was used and a cluster sample of 2691 students (mean age = 14.5 years, 51.0% girls), drawn from eight randomly selected public high schools in Northern Jordan, participated in the study. Each student had the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire completed in the classroom between February and May, 2015. Results The prevalence of recent wheezing in the last 12 months was 11.7% whereas the prevalence of diagnosed asthma was 6.2%. About 49% of students experienced cough all the time, and 33.5% experienced waking up at night due to wheezing some of the time. About 30.9% of students reported moderate to big exercise-induced asthma. The mean total Asthma Control Test (ACT) score was 5.85 (SD = 3.56) with all of students reporting uncontrolled asthma during the last month. Higher rates of asthma symptoms were reported by females, 10th graders, and students with negative family history. Importantly, students with diagnosed asthma or recent wheezing reported higher rates of ever smoking tobacco vs. non-asthmatics (p < 0.000); dual (18.6% vs. 9.8%), cigarettes only (11.2% vs. 7.3%), and waterpipe only (18.0% vs. 14.7%). Conclusion Overall, students with asthma or wheezing had increased rates of tobacco smoking. Policies need to be set and enforced to provide a better environment for these youth, especially making all schools smoke-free zones. A multifaceted, comprehensive awareness and management program is required in schools to control and manage asthma symptoms. PMID- 29331101 TI - Theory analysis for Pender's health promotion model (HPM) by Barnum's criteria: a critical perspective. AB - Background Analysis of nursing theoretical works and its role in knowledge development is presented as an essential process of critical reflection. Health promotion model (HPM) focuses on helping people achieve higher levels of well being and identifies background factors that influence health behaviors. Objectives This paper aims to evaluate, and critique HPM by Barnum's criteria. Methods The present study reviewed books and articles derived from Proquest, PubMed, Blackwell Databases. The method of evaluation for this model is based on Barnum's criteria for analysis, application and evaluation of nursing theories. The criteria selected by Barnum embrace both internal and external criticism. Internal criticism deals with how theory components fit with each other (internal construction of theory) and external criticism deals with the way in which theory relates to the extended world (which considers theory in its relationships to human beings, nursing, and health). Results The electronic database search yielded over 27,717 titles and abstracts. Following removal of duplicates, 18,963 titles and abstracts were screened using the inclusion criteria and 1278 manuscripts were retrieved. Of these, 80 were specific to HPM and 23 to analysis of any theory in nursing relating to the aim of this article. After final selection using the inclusion criteria for this review, 28 manuscripts were identified as examining the factors contributing to theory analysis. Evaluation of health promotion theory showed that the philosophical claims and their content are consistent and clear. HPM has a logical structure and was applied to diverse age groups from differing cultures with varying health concerns. Conclusion In conclusion, among the strategies for theory critique, the Barnum approach is structured and accurate, considers theory in its relationship to human beings, community psychiatric nursing, and health. While according to Pender, nursing assessment, diagnosis and interventions are utilized to operationalize the HPM through practical application and research. PMID- 29331102 TI - Opposite-sex relationship questionnaire for female adolescents: development and psychometric evaluation. AB - Aim The goal of the present study is to adopt state-of-the-art techniques and standards to develop and evaluate a measure, called the opposite-sex relationship questionnaire for female adolescents (OSRQFA), to assess the reasons why adolescent girls would or would not develop, a relationship with an adolescent boy. Methods A mixed-method, sequential, exploratory design was adopted. In the qualitative phase, an in-depth interview approach was used to identify the properties and dimensions to be included in the OSRQFA. In the quantitative phase, the psychometric properties of the OSRQFA were evaluated according to face, content and construct validity. Reliability and stability were assessed with Cronbach's alpha and test-retest analysis, respectively. Results A preliminary questionnaire including 86 items which emerged from the qualitative phase of the study was designed. Based on the impact scores for face validity and the cutoff points for the content validity ratio (CVR) and content validity index (CVI), the preliminary questionnaire was reduced to 57 items. The Kaiser criteria (eigenvalues >1) and scree plot tests demonstrated that 21 items forming six factors, which were labeled 'innate predilection', 'abstinence', 'peer pressure', 'fear of the relationship consequences', 'family atmosphere' and 'risk taking', that accounted for an estimated 66.19% of variance provided an optimal fit with the data. These scales had acceptable levels of internal consistency (alpha = 0.822) and stability (r = 0.871, p < 0.001). Conclusion The OSRQFA with 21 items and 6 factors demonstrated suitable validity and reliability in a sample of Iranian female adolescents. The OSRQFA's has good psychometric properties, and can be used by other researchers in future studies. PMID- 29331103 TI - Comparison of coronary risk factors and angiographic findings in younger and older patients with significant coronary artery disease. AB - BACKGROUND: Coronary artery disease (CAD) is uncommon among young adults and may have certain characteristics that are different from those in older patients. The aim of the current study was to determine the risk factors of CAD, important laboratory data and angiographic findings in young patients with CAD and to compare them with the old patients. METHODS: Patients with typical chest pain whose CAD was confirmed by coronary angiography were included in the study. These patients were divided into 2 groups: >= 45 and < 45 years old; the risk factors of CAD and angiographic findings were determined in each group and further compared. RESULTS: Finally, 231 patients with CAD were included in the study. Thirty-five (30.4%) of patients younger than 45 years and 58 (50.0%) aged >= 45 had diabetes mellitus (P = 0.002). Statistically remarkable differences were observed between the two groups regarding hypertension (P < 0.001), myocardial infarction (P < 0.001), Gensini score Median (P < 0.001), ejection fraction in echocardiography (P < 0.001) and fasting blood sugar in laboratory data (P = 0.006). The older group, compared with the younger one, had higher left anterior descending (LAD) artery (P < 0.001), right coronary artery (RCA) (P < 0.001), 3 vessel disease (P < 0.001) and 2-vessel disease (P = 0.044); on the other hand, 1 vessel disease was higher in patients aged < 45(P < 0.001). CONCLUSION: The risk profile and angiographic findings are different in young patients with CAD compared to older patients. Young patients with CAD tend to be male with a positive familial history, but with less diabetes or hypertension. The older patients had higher 3 vessel disease, 2-vessel disease and left anterior descending (LAD) artery and right coronary artery (RCA) involvements. In contrast, 1-vessel disease was higher in young patients aged <45. PMID- 29331105 TI - Dietary Factors Modulate Colonic Tumorigenesis Through the Interaction of Gut Microbiota and Host Chloride Channels. AB - SCOPE: In recent decades, the association among diet, gut microbiota, and the risk of colorectal cancer (CRC) has been established. Gut microbiota and associated metabolites, such as bile acids and butyrate, are now known to play a key role in CRC development. The aim of this study is to identify that the progression to CRC is influenced by cholic acid, sodium butyrate, a high-fat diet, or different dose of dihydromyricetin (DMY) interacted with gut microbiota. METHODS AND RESULTS: An AOM/DSS (azoxymethan/dextran sodium sulfate) model is established to study the gut microbiota compsition before and after tumor formation during colitis-induced tumorigenesis. All above dietary factors profoundly influence the composition of gut microbiota and host colonic tumorigenesis. In addition, mice with DMY-modified initial microbiota display different degrees of chemically induced tumorigenesis. Mechanism analysis reveals that gut microbiota-associated chloride channels participated in colon tumorigenesis. CONCLUSION: Gut microbiota changes occur in the hyperproliferative stage before tumor formation. Gut microbiota and host chloride channels, both of which are regulated by dietary factors, are associated with CRC development. PMID- 29331104 TI - Inhibition of mircoRNA-34a Enhances Survival of Human Bone Marrow Mesenchymal Stromal/Stem Cells Under Oxidative Stress. AB - BACKGROUND Mesenchymal stromal/stem cells (MSCs) are broadly used for many diseases, but the efficacy of MSC engraftment is very low due to low viability and high cell death rate under a stressful microenvironment. The present study aimed to investigate whether microRNA-34a (miR-34a), which is a downstream target of P53, is involved in H2O2-induced MSC cell death. MATERIAL AND METHODS Human bone marrow MSCs (hMSCs) were purchased from Lonza and were cultured as previously described. hMSCs were transfected with miR-34a inhibitor and exposed to H2O2. Cell proliferation assay was used to assess the survival rate of hMSCs. Real-time PCR and Western blot analysis were used to examine proliferation and survival ability of hMSCs. RESULTS H2O2 exposure significantly increased miR-34a expression in human bone marrow MSCs. H2O2 challenge induced massive MSC cell death along with reduction of expression of proliferation marker Ki67 and survival-related genes Bcl-2 and Survivin. Transfection of miR-34a inhibitor anti 34a led to a significant protective effect and rescued MSC cell death triggered by H2O2 exposure by 50%. Moreover, anti-34a dramatically increased Bcl-2 and Ki67 mRNA expression levels by over 10-fold compared to the mock control group under H2O2 exposure. The protein levels of Bcl-2 and Survivin were also rescued by anti 34a treatment by 50%. CONCLUSIONS Our results suggest that miR-34a plays a key role in oxidative stress-induced MSC cell death, and targeting miR-34a might be a promising strategy to enhance the survival rate of engrafted stem cells, which may improve therapeutic outcome. PMID- 29331106 TI - Kbtbd2 inhibits the cytotoxic activity of immortalized NK cells through down regulating mTOR signaling in a mouse hepatocellular carcinoma model. AB - Natural killer cell (NK cell)-based immunotherapy is a promising therapeutic strategy for hepatocellular carcinoma (HCC). However, the molecular mechanisms underlying the regulation of NK cell function in the tumor sites are not completely elucidated. In this study, we identified the enhanced expression of kelch repeat and BTB (POZ) domain containing 2 (Kbtbd2) in intratumoral NK cells in a mouse HCC implantation model as a negative regulator of NK cells. To investigate this interaction, we used a Tet-on inducible expression system to control Kbtbd2 expression in an immortalized mouse NK cell line KIL C.2. With this approach, we found that overexpression of Kbtbd2 reduced KIL C.2 cell proliferation, decreased expression certain of Ly49 receptor family members, and substantially impaired cytotoxic activity of KIL C.2 cells in vitro. Moreover, phosphorylation of mTOR and its target 4E-binding protein 1 was reduced in Kbtbd2 expressing KIL C.2 cells, along with down-regulated phosphorylation of Erk1/2. Adoptively transferred Kbtbd2-expressing KIL C.2 cells exhibited weaker tumoricidal effect on hepatocellular carcinoma cells in the HCC implantation model, in comparison with transferred control KIL C.2 cells. Taken together, our investigation indicates that Kbtbd2 is an inhibitory molecule for the tumoricidal activity of KIL C.2 cells and perhaps intratumoral NK cells. PMID- 29331107 TI - Endoscopic Full-Thickness Resection Combined with Laparoscopic Surgery. AB - Endoscopic full-thickness resection combined with laparoscopic surgery was recently developed. These procedures could be categorized as "Cut first and then suture" and "Suture first and then cut". "Cut first and then suture" includes laparoscopic and endoscopic cooperative surgery (LECS) and laparoscopy-assisted endoscopic full-thickness resection (LAEFR). Recent studies have demonstrated the safety and efficacy of LECS and LAEFR. However, these techniques are limited by the related exposure of the tumor and gastric mucosa to the peritoneal cavity and manipulation of these organs, which could lead to viable cancer cell seeding and the spillage of gastric juice into the peritoneal cavity. In the "Suture first and then cut" technique, the serosal side of the stomach is sutured to invert the stomach and subsequently endoscopic resection is performed. In this article, details of these techniques, including their advantages and limitations, are described. PMID- 29331108 TI - Classical molecular dynamics simulation of microwave heating of liquids: The case of water. AB - We perform a complete classical molecular dynamics study of the dielectric heating of water in the microwave (MW) region. MW frequencies ranging from 1.0 to 15.0 GHz are used together with a series of well-known empirical force fields. We show that the ability of an empirical force field to correctly predict the dielectric response of liquids to MW radiation should be evaluated on the basis of a joint comparison of the predicted and experimental static dielectric constant, frequency-dependent dielectric spectra, and heating profiles. We argue that this is essential when multicomponent liquids are studied. We find that both the three-site OPC3 and four-site TIP4P-epsilon empirical force fields of water are equally superior for reproducing dielectric properties at a range of MW frequencies. Despite its poor prediction of the static dielectric constant, the well-known SPCE force field can be used to accurately describe dielectric heating of water at low MW frequencies. PMID- 29331109 TI - Interaction of C2H with molecular hydrogen: Ab initio potential energy surface and scattering calculations. AB - The potential energy surface (PES) describing the interaction of the ethynyl (C2H) radical in its ground X2Sigma+ electronic state with molecular hydrogen has been computed through restricted coupled cluster calculations including single, double, and (perturbative) triple excitations [RCCSD(T)], with the assumption of fixed molecular geometries. The computed points were fit to an analytical form suitable for time-independent quantum scattering calculations of rotationally inelastic cross sections and rate constants. A representative set of energy dependent state-to-state cross sections is presented and discussed. The PES and cross sections for collisions of H2(j = 0) are compared with a previous study [F. Najar et al., Chem. Phys. Lett. 614, 251 (2014)] of collisions of C2H with H2 treated as a spherical collision partner. Good agreement is found between the two sets of calculations when the H2 molecule in the present calculation is spherically averaged. PMID- 29331110 TI - Random sequential adsorption of cubes. AB - Random packings built of cubes are studied numerically using a random sequential adsorption algorithm. To compare the obtained results with previous reports, three different models of cube orientation sampling were used. Also, three different cube-cube intersection algorithms were tested to find the most efficient one. The study focuses on the mean saturated packing fraction as well as kinetics of packing growth. Microstructural properties of packings were analyzed using density autocorrelation function. PMID- 29331111 TI - "Star" morphologies of charged nanodrops comprised of conformational isomers. AB - We study the spatial distribution of conformational isomers surrounding a central macroion in a charged droplet with linear dimensions in the nanometer range. Dimethyl carbonate and formic acid are selected as typical solvents that undergo isomerization and a charged buckyball (C60) is selected as a representative example of a macroion. The study is performed by atomistic molecular dynamics simulations. We find that when the charge of the buckyball is above a threshold value, it induces the formation of concentric shells of different conformational isomers surrounding the macroion. The presence of layers with different dielectric properties necessitates the use of different state equations for the solvent polarization in each layer. We find that at a high charge state of the buckyball, the nearest layer to the macroion comprises the conformers with the highest dipole moment. The interface of the outer layers of conformers is characterized by "ray"-forming structures of the higher dielectric constant isomers penetrating into the layer of the lowest dielectric constant isomers. For high values of the solvent dielectric constant, the charged droplet acquires a "star"-like global shape. We demonstrate that these distinct droplet structures are a manifestation of charge-induced instability. We describe this simulation based phenomenology by an analytical theory that supports this conclusion. The findings suggest new experimental research venues that may explore the reactivity and assembly of molecules within regions of different dielectric properties in droplets. PMID- 29331112 TI - Effects of dispersion interactions on the structure, polarity, and dynamics of liquid-vapor interface of an aqueous NaCl solution: Results of first principles simulations at room temperature. AB - The effects of dispersion interaction on the structure, polarity, and dynamics of liquid-vapor interface of a concentrated (5.3M) aqueous NaCl solution have been investigated through first-principles simulations. Among the structural properties, we have investigated the inhomogeneous density profiles of molecules, hydrogen bond distributions, and orientational profiles. On the dynamical side, we have calculated diffusion, orientational relaxation, hydrogen bond dynamics, and vibrational spectral diffusion of molecules. The polarity of water molecules across the interface is also calculated. Our simulation results are compared with those when no dispersion corrections are included. It is found that the inclusion of dispersion correction predicts an overall improvement of the structural properties of liquid water. The current study reveals a faster relaxation of hydrogen bonds, diffusion, and rotational motion for both interfacial and bulk molecules compared to the results when no such dispersion corrections are included. The dynamics of vibrational frequency fluctuations are also calculated which capture the relaxation of hydrogen bond fluctuations in the bulk and interfacial regions. Generally, the hydrogen bonds at the interfaces are found to have longer lifetimes due to reduced cooperative effects. PMID- 29331114 TI - Hartree-Fock symmetry breaking around conical intersections. AB - We study the behavior of Hartree-Fock (HF) solutions in the vicinity of conical intersections. These are here understood as regions of a molecular potential energy surface characterized by degenerate or nearly degenerate eigenfunctions with identical quantum numbers (point group, spin, and electron numbers). Accidental degeneracies between states with different quantum numbers are known to induce symmetry breaking in HF. The most common closed-shell restricted HF instability is related to singlet-triplet spin degeneracies that lead to collinear unrestricted HF solutions. Adding geometric frustration to the mix usually results in noncollinear generalized HF (GHF) solutions, identified by orbitals that are linear combinations of up and down spins. Near conical intersections, we observe the appearance of coplanar GHF solutions that break all symmetries, including complex conjugation and time-reversal, which do not carry good quantum numbers. We discuss several prototypical examples taken from the conical intersection literature. Additionally, we utilize a recently introduced magnetization diagnostic to characterize these solutions, as well as a solution of a Jahn-Teller active geometry of H8+2. PMID- 29331113 TI - Uniform magnetic fields in density-functional theory. AB - We construct a density-functional formalism adapted to uniform external magnetic fields that is intermediate between conventional density functional theory and Current-Density Functional Theory (CDFT). In the intermediate theory, which we term linear vector potential-DFT (LDFT), the basic variables are the density, the canonical momentum, and the paramagnetic contribution to the magnetic moment. Both a constrained-search formulation and a convex formulation in terms of Legendre-Fenchel transformations are constructed. Many theoretical issues in CDFT find simplified analogs in LDFT. We prove results concerning N-representability, Hohenberg-Kohn-like mappings, existence of minimizers in the constrained-search expression, and a restricted analog to gauge invariance. The issue of additivity of the energy over non-interacting subsystems, which is qualitatively different in LDFT and CDFT, is also discussed. PMID- 29331115 TI - Theoretical analysis of the domain-swapped dimerization of cytochrome c: An MD and 3D-RISM approach. AB - The structural stability of a cytochrome c domain-swapped dimer compared with that of the monomer was investigated by molecular dynamics (MD) simulations and by three-dimensional reference interaction site model (3D-RISM) theory. The structural fluctuation and structural energy of cytochrome c were treated by MD simulations, and the solvation thermodynamics was treated by 3D-RISM theory. The domain-swapped dimer state is slightly less stable than the monomer state, which is consistent with experimental observations; the total free energy difference is calculated as 25 kcal mol-1. The conformational change and translational/rotational entropy change contribute to the destabilization of the dimer, whereas the hydration and vibrational entropy contribute to the stabilization. Further analyses on the residues located at the hinge loop for swapping were conducted, and the results reveal details at the molecular level of the structural and interaction changes upon dimerization. PMID- 29331116 TI - Tensor-decomposed vibrational coupled-cluster theory: Enabling large-scale, highly accurate vibrational-structure calculations. AB - A new implementation of vibrational coupled-cluster (VCC) theory is presented, where all amplitude tensors are represented in the canonical polyadic (CP) format. The CP-VCC algorithm solves the non-linear VCC equations without ever constructing the amplitudes or error vectors in full dimension but still formally includes the full parameter space of the VCC[n] model in question resulting in the same vibrational energies as the conventional method. In a previous publication, we have described the non-linear-equation solver for CP-VCC calculations. In this work, we discuss the general algorithm for evaluating VCC error vectors in CP format including the rank-reduction methods used during the summation of the many terms in the VCC amplitude equations. Benchmark calculations for studying the computational scaling and memory usage of the CP VCC algorithm are performed on a set of molecules including thiadiazole and an array of polycyclic aromatic hydrocarbons. The results show that the reduced scaling and memory requirements of the CP-VCC algorithm allows for performing high-order VCC calculations on systems with up to 66 vibrational modes (anthracene), which indeed are not possible using the conventional VCC method. This paves the way for obtaining highly accurate vibrational spectra and properties of larger molecules. PMID- 29331117 TI - Accurate virial coefficients of gaseous krypton from state-of-the-art ab initio potential and polarizability of the krypton dimer. AB - We have developed a new krypton-krypton interaction-induced isotropic dipole polarizability curve based on high-level ab initio methods. The determination was carried out using the coupled-cluster singles and doubles plus perturbative triples method with very large basis sets up to augmented correlation-consistent sextuple zeta as well as the corrections for core-core and core-valence correlation and relativistic effects. The analytical function of polarizability and our recently constructed reference interatomic potential [J. M. Waldrop et al., J. Chem. Phys. 142, 204307 (2015)] were used to predict the thermophysical and electromagnetic properties of krypton gas. The second pressure, acoustic, and dielectric virial coefficients were computed for the temperature range of 116 K 5000 K using classical statistical mechanics supplemented with high-order quantum corrections. The virial coefficients calculated were compared with the generally less precise available experimental data as well as with values computed from other potentials in the literature {in particular, the recent highly accurate potential of Jager et al. [J. Chem. Phys. 144, 114304 (2016)]}. The detailed examination in this work suggests that the present theoretical prediction can be applied as reference values in disciplines involving thermophysical and electromagnetic properties of krypton gas. PMID- 29331118 TI - Exploration of near the origin and the asymptotic behaviors of the Kohn-Sham kinetic energy density for two-dimensional quantum dot systems with parabolic confinement. AB - The behaviors of the positive definite Kohn-Sham kinetic energy density near the origin and at the asymptotic region play a major role in designing meta generalized gradient approximations (meta-GGAs) for exchange in low-dimensional quantum systems. It is shown that near the origin of the parabolic quantum dot, the Kohn-Sham kinetic energy differs from its von Weizsacker counterpart due to the p orbital contributions, whereas in the asymptotic region, the difference between the above two kinetic energy densities goes as ~rho(r)r2. All these behaviors have been explored using the two-dimensional isotropic quantum harmonic oscillator as a test case. Several meta-GGA ingredients are then studied by making use of the above findings. Also, the asymptotic conditions for the exchange energy density and the potential at the meta-GGA level are proposed using the corresponding behaviors of the two kinetic energy densities. PMID- 29331119 TI - Molecular dynamics investigation of water-exchange reactions on lanthanide ions in water/1-ethyl-3-methylimidazolium trifluoromethylsufate ([EMIm][OTf]). AB - We report a kinetic study of the water exchange on lanthanide ions in water/[1 ethyl-3-methylimidazolium][trifluoromethylsufate] (water/[EMIm][OTf]). The results from 17O-NMR measurements show that the water-exchange rates in water/[EMIm][OTf] increase with decreasing size of the lanthanide ions. This trend for water-exchange is similar to the previously reported trend in water/1 ethyl-3-methylimidazolium ethyl sulfate (water/[EMIm][EtSO4]) but opposite to that in water. To gain atomic-level insight into these water-exchange reactions, molecular dynamics simulations for lanthanide ions in water/[EMIm][OTf] have been performed using the atomic-multipole-optimized-energetics-for-biomolecular application polarizable force field. Our molecular dynamics simulations reproduce the experimental water-exchange rates in terms of the trend and provide possible explanations for the observed experimental behavior. The smaller lanthanide ions in water/[EMIm][OTf] undergo faster water exchange because the smaller lanthanide ions coordinate to the first shell [OTf]- anions more tightly, resulting in a stronger screening effect for the second-shell water. The screening effect weakens the interaction of the lanthanide ions with the second-shell water molecules, facilitating the dissociation of water from the second-shell and subsequent association of water molecules from the outer solvation shells. PMID- 29331120 TI - On the mechanical stability of the body-centered cubic phase and the emergence of a metastable cI16 phase in classical hard sphere solids. AB - The stability of the body-centered cubic (bcc) solid phase of classical hard spheres is of intrinsic interest and is also relevant to the development of perturbation theories for bcc solids of other model systems. Using canonical ensemble Monte Carlo, we simulated systems initialized in a perfect bcc lattice at various densities in the solid region. We observed that the systems rapidly evolved into one of four structures that then persisted for the duration of the simulation. Remarkably, one of these structures was identified as cI16, a cubic crystalline structure with 16 particles in the unit cell, which has recently been observed experimentally in lithium and sodium solids at high pressures. The other three structures do not exhibit crystalline order but are characterized by common patterns in the radial distribution function and bond-orientational order parameter distribution; we refer to them as bcc-di, with i ranging from 1 to 3. We found similar outcomes when employing any of the three single occupancy cell (SOC) restrictions commonly used in the literature. We also ran long constant pressure simulations with box shape fluctuations initiated from bcc and cI16 initial configurations. At lower pressures, all the systems evolved to defective face-centered cubic (fcc) or hexagonal close-packed (hcp) structures. At higher pressures, most of the systems initiated as bcc evolved to cI16 with some evolving to defective fcc/hcp. High pressure systems initiated from cI16 remained in that structure. We computed the chemical potential of cI16 using the Einstein crystal reference method and found that it is higher than that of fcc by ~0.5kT 2.5kT over the pressure range studied, with the difference increasing with pressure. We find that the undistorted bcc solid, even with constant-volume and SOC restrictions applied, is so mechanically unstable that it is unsuitable for consideration as a metastable phase or as a reference system for studying bcc phases of other systems. On the other hand, cI16 is a mechanically stable structure that can spontaneously emerge from a bcc starting point but it is thermodynamically metastable relative to fcc or hcp. PMID- 29331121 TI - Diffusion of a particle in the spatially correlated exponential random energy landscape: Transition from normal to anomalous diffusion. AB - Diffusive transport of a particle in a spatially correlated random energy landscape having exponential density of states has been considered. We exactly calculate the diffusivity in the nondispersive quasi-equilibrium transport regime for the 1D transport model and found that for slow decaying correlation functions the diffusivity becomes singular at some particular temperature higher than the temperature of the transition to the true non-equilibrium dispersive transport regime. It means that the diffusion becomes anomalous and does not follow the usual ? t1/2 law. In such situation, the fully developed non-equilibrium regime emerges in two stages: first, at some temperature there is the transition from the normal to anomalous diffusion, and then at lower temperature the average velocity for the infinite medium goes to zero, thus indicating the development of the true dispersive regime. Validity of the Einstein relation is discussed for the situation where the diffusivity does exist. We provide also some arguments in favor of conservation of the major features of the new transition scenario in higher dimensions. PMID- 29331122 TI - Thermally induced charge current through long molecules. AB - In this work, we theoretically study steady state thermoelectric transport through a single-molecule junction with a long chain-like bridge. Electron transmission through the system is computed using a tight-binding model for the bridge. We analyze dependences of thermocurrent on the bridge length in unbiased and biased systems operating within and beyond the linear response regime. It is shown that the length-dependent thermocurrent is controlled by the lineshape of electron transmission in the interval corresponding to the HOMO/LUMO transport channel. Also, it is demonstrated that electron interactions with molecular vibrations may significantly affect the length-dependent thermocurrent. PMID- 29331123 TI - The influence of ion hydration on nucleation and growth of LiF crystals in aqueous solution. AB - Molecular dynamics (MD) simulations are employed to investigate crystal nucleation and growth in oversaturated aqueous LiF solutions. Results obtained for a range of temperatures provide evidence that the rate of crystal growth is determined by a substantial energy barrier (~49 kJ mol-1) related to the loss of water from the ion hydration shells. Employing direct MD simulations, we do not observe spontaneous nucleation of LiF crystals at 300 K, but nucleation is easily observable in NVT simulations at 500 K. This contrasts with the NaCl case, where crystal nucleation is directly observed in similar simulations at 300 K. Based on these observations, together with a detailed analysis of ion clustering in metastable LiF solutions, we argue that the ion dehydration barrier also plays a key role in crystal nucleation. The hydration of the relatively small Li+ and F- ions strongly influences the probability of forming large, crystal-like ion clusters, which are a necessary precursor to nucleation. This important factor is not accounted for in classical nucleation theory. PMID- 29331124 TI - Characterizing protein conformations by correlation analysis of coarse-grained contact matrices. AB - We have developed a method to capture the essential conformational dynamics of folded biopolymers using statistical analysis of coarse-grained segment-segment contacts. Previously, the residue-residue contact analysis of simulation trajectories was successfully applied to the detection of conformational switching motions in biomolecular complexes. However, the application to large protein systems (larger than 1000 amino acid residues) is challenging using the description of residue contacts. Also, the residue-based method cannot be used to compare proteins with different sequences. To expand the scope of the method, we have tested several coarse-graining schemes that group a collection of consecutive residues into a segment. The definition of these segments may be derived from structural and sequence information, while the interaction strength of the coarse-grained segment-segment contacts is a function of the residue residue contacts. We then perform covariance calculations on these coarse-grained contact matrices. We monitored how well the principal components of the contact matrices is preserved using various rendering functions. The new method was demonstrated to assist the reduction of the degrees of freedom for describing the conformation space, and it potentially allows for the analysis of a system that is approximately tenfold larger compared with the corresponding residue contact based method. This method can also render a family of similar proteins into the same conformational space, and thus can be used to compare the structures of proteins with different sequences. PMID- 29331125 TI - Diffusion-influenced reaction rates for active "sphere-prolate spheroid" pairs and Janus dimers. AB - The purpose of this paper is twofold. First, we provide a concise introduction to the generalized method of separation of variables for solving diffusion problems in canonical domains beyond conventional arrays of spheres. Second, as an important example of its application in the theory of diffusion-influenced reactions, we present an exact solution of the axially symmetric problem on diffusive competition in an array of two active particles (including Janus dumbbells) constructed of a prolate spheroid and a sphere. In particular, we investigate how the reaction rate depends on sizes of active particles, spheroid aspect ratio, particles' surface reactivity, and distance between their centers. PMID- 29331126 TI - Binding branched and linear DNA structures: From isolated clusters to fully bonded gels. AB - The proper design of DNA sequences allows for the formation of well-defined supramolecular units with controlled interactions via a consecution of self assembling processes. Here, we benefit from the controlled DNA self-assembly to experimentally realize particles with well-defined valence, namely, tetravalent nanostars (A) and bivalent chains (B). We specifically focus on the case in which A particles can only bind to B particles, via appropriately designed sticky-end sequences. Hence AA and BB bonds are not allowed. Such a binary mixture system reproduces with DNA-based particles the physics of poly-functional condensation, with an exquisite control over the bonding process, tuned by the ratio, r, between B and A units and by the temperature, T. We report dynamic light scattering experiments in a window of Ts ranging from 10 degrees C to 55 degrees C and an interval of r around the percolation transition to quantify the decay of the density correlation for the different cases. At low T, when all possible bonds are formed, the system behaves as a fully bonded network, as a percolating gel, and as a cluster fluid depending on the selected r. PMID- 29331127 TI - Molecular hydrodynamics: Vortex formation and sound wave propagation. AB - In the present study, quantitative feasibility tests of the hydrodynamic description of a two-dimensional fluid at the molecular level are performed, both with respect to length and time scales. Using high-resolution fluid velocity data obtained from extensive molecular dynamics simulations, we computed the transverse and longitudinal components of the velocity field by the Helmholtz decomposition and compared them with those obtained from the linearized Navier Stokes (LNS) equations with time-dependent transport coefficients. By investigating the vortex dynamics and the sound wave propagation in terms of these field components, we confirm the validity of the LNS description for times comparable to or larger than several mean collision times. The LNS description still reproduces the transverse velocity field accurately at smaller times, but it fails to predict characteristic patterns of molecular origin visible in the longitudinal velocity field. Based on these observations, we validate the main assumptions of the mode-coupling approach. The assumption that the velocity autocorrelation function can be expressed in terms of the fluid velocity field and the tagged particle distribution is found to be remarkably accurate even for times comparable to or smaller than the mean collision time. This suggests that the hydrodynamic-mode description remains valid down to the molecular scale. PMID- 29331128 TI - Two-component Gaussian core model: Strong-coupling limit, Bjerrum pairs, and gas liquid phase transition. AB - In the present work, we investigate a gas-liquid transition in a two-component Gaussian core model, where particles of the same species repel and those of different species attract. Unlike a similar transition in a one-component system with particles having attractive interactions at long separations and repulsive interactions at short separations, a transition in the two-component system is not driven solely by interactions but by a specific feature of the interactions, the correlations. This leads to extremely low critical temperature, as correlations are dominant in the strong-coupling limit. By carrying out various approximations based on standard liquid-state methods, we show that a gas-liquid transition of the two-component system poses a challenging theoretical problem. PMID- 29331129 TI - Perspective: Structural fluctuation of protein and Anfinsen's thermodynamic hypothesis. AB - The thermodynamics hypothesis, casually referred to as "Anfinsen's dogma," is described theoretically in terms of a concept of the structural fluctuation of protein or the first moment (average structure) and the second moment (variance and covariance) of the structural distribution. The new theoretical concept views the unfolding and refolding processes of protein as a shift of the structural distribution induced by a thermodynamic perturbation, with the variance covariance matrix varying. Based on the theoretical concept, a method to characterize the mechanism of folding (or unfolding) is proposed. The transition state, if any, between two stable states is interpreted as a gap in the distribution, which is created due to an extensive reorganization of hydrogen bonds among back-bone atoms of protein and with water molecules in the course of conformational change. Further perspective to applying the theory to the computer aided drug design, and to the material science, is briefly discussed. PMID- 29331130 TI - Femtosecond coherent nuclear dynamics of excited tetraphenylethylene: Ultrafast transient absorption and ultrafast Raman loss spectroscopic studies. AB - Ultrafast torsional dynamics plays an important role in the photoinduced excited state dynamics. Tetraphenylethylene (TPE), a model system for the molecular motor, executes interesting torsional dynamics upon photoexcitation. The photoreaction of TPE involves ultrafast internal conversion via a nearly planar intermediate state (relaxed state) that further leads to a twisted zwitterionic state. Here, we report the photoinduced structural dynamics of excited TPE during the course of photoisomerization in the condensed phase by ultrafast Raman loss (URLS) and femtosecond transient absorption (TA) spectroscopy. TA measurements on the S1 state reveal step-wise population relaxation from the Franck-Condon (FC) state -> relaxed state -> twisted state, while the URLS study provides insights on the vibrational dynamics during the course of the reaction. The TA spectral dynamics and vibrational Raman amplitudes within 1 ps reveal vibrational wave packet propagating from the FC state to the relaxed state. Fourier transformation of this oscillation leads to a ~130 cm-1 low-frequency phenyl torsional mode. Two vibrational marker bands, Cet=Cet stretching (~1512 cm-1) and Cph=Cph stretching (~1584 cm-1) modes, appear immediately after photoexcitation in the URLS spectra. The initial red-shift of the Cph=Cph stretching mode with a time constant of ~400 fs (in butyronitrile) is assigned to the rate of planarization of excited TPE. In addition, the Cet=Cet stretching mode shows initial blue-shift within 1 ps followed by frequency red-shift, suggesting that on the sub-picosecond time scale, structural relaxation is dominated by phenyl torsion rather than the central Cet=Cet twist. Furthermore, the effect of the solvent on the structural dynamics is discussed in the context of ultrafast nuclear dynamics and solute solvent coupling. PMID- 29331131 TI - Combining the ensemble and Franck-Condon approaches for calculating spectral shapes of molecules in solution. AB - The correct treatment of vibronic effects is vital for the modeling of absorption spectra of many solvated dyes. Vibronic spectra for small dyes in solution can be easily computed within the Franck-Condon approximation using an implicit solvent model. However, implicit solvent models neglect specific solute-solvent interactions on the electronic excited state. On the other hand, a straightforward way to account for solute-solvent interactions and temperature dependent broadening is by computing vertical excitation energies obtained from an ensemble of solute-solvent conformations. Ensemble approaches usually do not account for vibronic transitions and thus often produce spectral shapes in poor agreement with experiment. We address these shortcomings by combining zero temperature vibronic fine structure with vertical excitations computed for a room temperature ensemble of solute-solvent configurations. In this combined approach, all temperature-dependent broadening is treated classically through the sampling of configurations and quantum mechanical vibronic contributions are included as a zero-temperature correction to each vertical transition. In our calculation of the vertical excitations, significant regions of the solvent environment are treated fully quantum mechanically to account for solute-solvent polarization and charge-transfer. For the Franck-Condon calculations, a small amount of frozen explicit solvent is considered in order to capture solvent effects on the vibronic shape function. We test the proposed method by comparing calculated and experimental absorption spectra of Nile red and the green fluorescent protein chromophore in polar and non-polar solvents. For systems with strong solute solvent interactions, the combined approach yields significant improvements over the ensemble approach. For systems with weak to moderate solute-solvent interactions, both the high-energy vibronic tail and the width of the spectra are in excellent agreement with experiments. PMID- 29331132 TI - Detection and characterization of the tin dihydride (SnH2 and SnD2) molecule in the gas phase. AB - The SnH2 and SnD2 molecules have been detected for the first time in the gas phase by laser-induced fluorescence (LIF) and emission spectroscopic techniques through the A1B1-X1A1 electronic transition. These reactive species were prepared in a pulsed electric discharge jet using (CH3)4Sn or SnH4/SnD4 precursors diluted in high pressure argon. Transitions to the electronic excited state of the jet cooled molecules were probed with LIF, and the ground state energy levels were measured from single rovibronic level emission spectra. The LIF spectrum of SnD2 afforded sufficient rotational structure to determine the ground and excited state geometries: r0" = 1.768 A, theta0" = 91.0 degrees , r0' = 1.729 A, theta0' = 122.9 degrees . All of the observed LIF bands show evidence of a rotational level-dependent predissociation process which rapidly decreases the fluorescence yield and lifetime with increasing rotational angular momentum in each excited vibronic level. This behavior is analogous to that observed in SiH2 and GeH2 and is suggested to lead to the formation of ground state tin atoms and hydrogen molecules. PMID- 29331133 TI - The effect of Pd ensemble structure on the O2 dissociation and CO oxidation mechanisms on Au-Pd(100) surface alloys. AB - The reactivity of various Pd ensembles on the Au-Pd(100) alloy catalyst toward CO oxidation was investigated by using density functional theory (DFT). This study was prompted by the search for efficient catalysts operating at low temperature for the CO oxidation reaction that is of primary environmental importance. To this aim, we considered Pd modified Au(100) surfaces including Pd monomers, Pd dimers, second neighboring Pd atoms, and Pd chains in a comparative study of the minimum energy reaction pathways. The effect of dispersion interactions was included in the calculations of the O2 dissociation reaction pathway by using the DFT-D3 scheme. The addition of the dispersion interaction strongly improves the adsorption ability of O2 on the Au-Pd surface but does not affect the activation energy barriers of the Transitions States (TSs). As for O2 to dissociate, it is imperative that the TS has lower activation energy than the O2 desorption energy. DFT-D3 is found to favor, in some cases, O2 dissociation on configurations being identified from uncorrected DFT calculations as inactive. This is the case of the second neighboring Pd configuration for which uncorrected DFT predicts positive Gibbs free energy (DeltaG) of the O2 adsorption, therefore an endergonic reaction. With the addition of D3 correction, DeltaG becomes negative that reveals a spontaneous O2 adsorption. Among the investigated Au-Pd (100) ensembles, the Pd chain dissociates most easily O2 and highly stabilizes the dissociated O atoms; however, it has an inferior reactivity toward CO oxidation and CO2 formation. Indeed, CO strongly adsorbs on the palladium bridge sites and therefore poisoning the surface Pd chain. By contrast, the second neighboring Pd configuration that shows somewhat lower ability to dissociate O2 turns out to be more reactive in the CO2 formation step. These results evidence the complex effect of Pd ensembles on the CO oxidation reaction. Associative CO oxidation proceeds with high energy barriers on all the considered Pd ensembles and should be excluded, in agreement with experimental observations. PMID- 29331134 TI - Coarse-grained model of nanoscale segregation, water diffusion, and proton transport in Nafion membranes. AB - We present a coarse-grained model of the acid form of Nafion membrane that explicitly includes proton transport. This model is based on a soft-core bead representation of the polymer implemented into the dissipative particle dynamics (DPD) simulation framework. The proton is introduced as a separate charged bead that forms dissociable Morse bonds with water beads. Morse bond formation and breakup artificially mimics the Grotthuss hopping mechanism of proton transport. The proposed DPD model is parameterized to account for the specifics of the conformations and flexibility of the Nafion backbone and sidechains; it treats electrostatic interactions in the smeared charge approximation. The simulation results qualitatively, and in many respects quantitatively, predict the specifics of nanoscale segregation in the hydrated Nafion membrane into hydrophobic and hydrophilic subphases, water diffusion, and proton mobility. As the hydration level increases, the hydrophilic subphase exhibits a percolation transition from a collection of isolated water clusters to a 3D network of pores filled with water embedded in the hydrophobic matrix. The segregated morphology is characterized in terms of the pore size distribution with the average size growing with hydration from ~1 to ~4 nm. Comparison of the predicted water diffusivity with the experimental data taken from different sources shows good agreement at high and moderate hydration and substantial deviation at low hydration, around and below the percolation threshold. This discrepancy is attributed to the dynamic percolation effects of formation and rupture of merging bridges between the water clusters, which become progressively important at low hydration, when the coarse-grained model is unable to mimic the fine structure of water network that includes singe molecule bridges. Selected simulations of water diffusion are performed for the alkali metal substituted membrane which demonstrate the effects of the counter-ions on membrane self-assembly and transport. The hydration dependence of the proton diffusivity reproduces semi qualitatively the trend of the diverse experimental data, showing a sharp decrease around the percolation threshold. Overall, the proposed model opens up an opportunity to study self-assembly and water and proton transport in polyelectrolytes using computationally efficient DPD simulations, and, with further refinement, it may become a practical tool for theory informed design and optimization of perm-selective and ion-conducting membranes with improved properties. PMID- 29331135 TI - Erratum: "Communication: Molecular near-infrared transitions determined with sub kHz accuracy" [J. Chem. Phys. 147, 091103 (2017)]. PMID- 29331136 TI - Zwitterionization of glycine in water environment: Stabilization mechanism and NMR spectral signatures. AB - At physiological conditions, myriads of biomolecules (e.g., amino acids, peptides, and proteins) exist predominantly in the zwitterionic structural form and their biological functions will result in these conditions. However these geometrical structures are inaccessible energetically in the gas phase, and at this point, stabilization of amino-acids in physiological conditions is still under debate. In this paper, the electronic properties of a glycine molecule in the liquid environment were studied by performing a relaxation of the glycine geometry in liquid water using the free energy gradient method combined with a sequential quantum mechanics/molecular mechanics approach. A series of Monte Carlo Metropolis simulations of the glycine molecule embedded in liquid water, followed by only a quantum mechanical calculation in each of them were carried out. Both the local and global liquid environments were emphasized to obtain nuclear magnetic resonance (NMR) parameters for the glycine molecule in liquid water. The results of the equilibrium structure in solution and the systematic study of the hydrogen bonds were used to discard the direct proton transfer from the carboxyl group to the ammonium group of the glycine molecule in water solution. The calculations of the Density Functional Theory (DFT) were performed to study the polarization of the solvent in the parameters of nuclear magnetic resonance of the glycine molecule in liquid water. DFT calculations predicted isotropic chemical changes on the H, C, N, and O atoms of glycine in liquid water solution which agree with the available experimental data. PMID- 29331137 TI - Molecular dynamics based enhanced sampling of collective variables with very large time steps. AB - Enhanced sampling techniques that target a set of collective variables and that use molecular dynamics as the driving engine have seen widespread application in the computational molecular sciences as a means to explore the free-energy landscapes of complex systems. The use of molecular dynamics as the fundamental driver of the sampling requires the introduction of a time step whose magnitude is limited by the fastest motions in a system. While standard multiple time stepping methods allow larger time steps to be employed for the slower and computationally more expensive forces, the maximum achievable increase in time step is limited by resonance phenomena, which inextricably couple fast and slow motions. Recently, we introduced deterministic and stochastic resonance-free multiple time step algorithms for molecular dynamics that solve this resonance problem and allow ten- to twenty-fold gains in the large time step compared to standard multiple time step algorithms [P. Minary et al., Phys. Rev. Lett. 93, 150201 (2004); B. Leimkuhler et al., Mol. Phys. 111, 3579-3594 (2013)]. These methods are based on the imposition of isokinetic constraints that couple the physical system to Nose-Hoover chains or Nose-Hoover Langevin schemes. In this paper, we show how to adapt these methods for collective variable-based enhanced sampling techniques, specifically adiabatic free-energy dynamics/temperature accelerated molecular dynamics, unified free-energy dynamics, and by extension, metadynamics, thus allowing simulations employing these methods to employ similarly very large time steps. The combination of resonance-free multiple time step integrators with free-energy-based enhanced sampling significantly improves the efficiency of conformational exploration. PMID- 29331139 TI - Non-iterative triple excitations in equation-of-motion coupled-cluster theory for electron attachment with applications to bound and temporary anions. AB - The impact of residual electron correlation beyond the equation-of-motion coupled cluster singles and doubles (EOM-CCSD) approximation on positions and widths of electronic resonances is investigated. To establish a method that accomplishes this task in an economical manner, several approaches proposed for the approximate treatment of triple excitations are reviewed with respect to their performance in the electron attachment (EA) variant of EOM-CC theory. The recently introduced EOM-CCSD(T)(a)* method [D. A. Matthews and J. F. Stanton, J. Chem. Phys. 145, 124102 (2016)], which includes non-iterative corrections to the reference and the target states, reliably reproduces vertical attachment energies from EOM-EA-CC calculations with single, double, and full triple excitations in contrast to schemes in which non-iterative corrections are applied only to the target states. Applications of EOM-EA-CCSD(T)(a)* augmented by a complex absorbing potential (CAP) to several temporary anions illustrate that shape resonances are well described by EOM-EA-CCSD, but that residual electron correlation often makes a non-negligible impact on their positions and widths. The positions of Feshbach resonances, on the other hand, are significantly improved when going from CAP-EOM-EA-CCSD to CAP-EOM-EA-CCSD(T)(a)*, but the correct energetic order of the relevant electronic states is still not achieved. PMID- 29331138 TI - Role of non-equilibrium conformations on driven polymer translocation. AB - One of the major theoretical methods in understanding polymer translocation through a nanopore is the Fokker-Planck formalism based on the assumption of quasi-equilibrium of polymer conformations. The criterion for applicability of the quasi-equilibrium approximation for polymer translocation is that the average translocation time per Kuhn segment, ?tau?/NK, is longer than the relaxation time tau0 of the polymer. Toward an understanding of conditions that would satisfy this criterion, we have performed coarse-grained three dimensional Langevin dynamics and multi-particle collision dynamics simulations. We have studied the role of initial conformations of a polyelectrolyte chain (which were artificially generated with a flow field) on the kinetics of its translocation across a nanopore under the action of an externally applied transmembrane voltage V (in the absence of the initial flow field). Stretched (out-of-equilibrium) polyelectrolyte chain conformations are deliberately and systematically generated and used as initial conformations in translocation simulations. Independent simulations are performed to study the relaxation behavior of these stretched chains, and a comparison is made between the relaxation time scale and the mean translocation time (?tau?). For such artificially stretched initial states, ?tau?/NK < tau0, demonstrating the inapplicability of the quasi-equilibrium approximation. Nevertheless, we observe a scaling of ?tau? ~ 1/V over the entire range of chain stretching studied, in agreement with the predictions of the Fokker-Planck model. On the other hand, for realistic situations where the initial artificially imposed flow field is absent, a comparison of experimental data reported in the literature with the theory of polyelectrolyte dynamics reveals that the Zimm relaxation time (tauZimm) is shorter than the mean translocation time for several polymers including single stranded DNA (ssDNA), double stranded DNA (dsDNA), and synthetic polymers. Even when these data are rescaled assuming a constant effective velocity of translocation, it is found that for flexible (ssDNA and synthetic) polymers with NK Kuhn segments, the condition ?tau?/NK < tauZimm is satisfied. We predict that for flexible polymers such as ssDNA, a crossover from quasi-equilibrium to non-equilibrium behavior would occur at NK ~ O(1000). PMID- 29331140 TI - Erratum: "An automated nudged elastic band method" [J. Chem. Phys. 145, 094107 (2016)]. PMID- 29331141 TI - Effects of cross-linking on partitioning of nanoparticles into a polymer brush: Coarse-grained simulations test simple approximate theories. AB - The effect of cohesive contacts or, equivalently, dynamical cross-linking on the equilibrium morphology of a polymer brush infiltrated by nanoparticles that are attracted to the polymer strands is studied for plane-grafted brushes using coarse-grained molecular dynamics and approximate statistical mechanical models. In particular, the Alexander-de Gennes (AdG) and Strong Stretching Theory (SST) mean-field theory (MFT) models are considered. It is found that for values of the MFT cross-link strength interaction parameter beyond a certain threshold, both AdG and SST models predict that the polymer brush will be in a compact state of nearly uniform density packed next to the grafting surface over a wide range of solution phase nanoparticle concentrations. Coarse grained molecular dynamics simulations confirm this prediction, for both small nanoparticles (nanoparticle volume = monomer volume) and large nanoparticles (nanoparticle volume = 27 * monomer volume). Simulation results for these cross-linked systems are compared with analogous results for systems with no cross-linking. At the same solution phase nanoparticle concentration, strong cross-linking results in additional compression of the brush relative to the non-crosslinked analog and, at all but the lowest concentrations, to a lesser degree of infiltration by nanoparticles. For large nanoparticles, the monomer density profiles show clear oscillations moving outwards from the grafting surface, corresponding to a degree of layering of the absorbed nanoparticles in the brush as they pack against the grafting surface. PMID- 29331142 TI - Kinetic step-growth polymerization: A dissipative particle dynamics simulation study. AB - Kinetic step-growth polymerization is studied by dissipative particle dynamics coupled with our previously developed reaction algorithm on a coarse-grained level. The simulation result proves that this step-growth polymerization obeys the second-order reaction kinetics. We apply this algorithm to study the step growth polymerization using the subunits with different flexibilities or within confinement. Good agreement of the number fraction distributions with the Flory distribution is obtained, implying that this algorithm is reasonable to describe such a kind of step-growth polymerization. This algorithm can further supply a convenient platform for simulating typical step-growth polymerization in reactive polymer systems. PMID- 29331143 TI - Effects of system size and cooling rate on the structure and properties of sodium borosilicate glasses from molecular dynamics simulations. AB - Borosilicate glasses form an important glass forming system in both glass science and technologies. The structure and property changes of borosilicate glasses as a function of thermal history in terms of cooling rate during glass formation and simulation system sizes used in classical molecular dynamics (MD) simulation were investigated with recently developed composition dependent partial charge potentials. Short and medium range structural features such as boron coordination, Si and B Qn distributions, and ring size distributions were analyzed to elucidate the effects of cooling rate and simulation system size on these structure features and selected glass properties such as glass transition temperature, vibration density of states, and mechanical properties. Neutron structure factors, neutron broadened pair distribution functions, and vibrational density of states were calculated and compared with results from experiments as well as ab initio calculations to validate the structure models. The results clearly indicate that both cooling rate and system size play an important role on the structures of these glasses, mainly by affecting the 3B and 4B distributions and consequently properties of the glasses. It was also found that different structure features and properties converge at different sizes or cooling rates; thus convergence tests are needed in simulations of the borosilicate glasses depending on the targeted properties. The results also shed light on the complex thermal history dependence on structure and properties in borosilicate glasses and the protocols in MD simulations of these and other glass materials. PMID- 29331144 TI - Communication: Site-selective bond excision of adenine upon electron transfer. AB - This work demonstrates that selective excision of hydrogen atoms at a particular site of the DNA base adenine can be achieved in collisions with electronegative atoms by controlling the impact energy. The result is based on analysing the time of-flight mass spectra yields of potassium collisions with a series of labeled adenine derivatives. The production of dehydrogenated parent anions is consistent with neutral H loss either from selective breaking of C-H or N-H bonds. These unprecedented results open up a new methodology in charge transfer collisions that can initiate selective reactivity as a key process in chemical reactions that are dominant in different areas of science and technology. PMID- 29331145 TI - Modelling the effect of acoustic waves on the thermodynamics and kinetics of phase transformation in a solution: Including mass transportation. AB - Effects of acoustic waves on a phase transformation in a metastable phase were investigated in our previous work [S. R. Haqshenas, I. J. Ford, and N. Saffari, "Modelling the effect of acoustic waves on nucleation," J. Chem. Phys. 145, 024315 (2016)]. We developed a non-equimolar dividing surface cluster model and employed it to determine the thermodynamics and kinetics of crystallisation induced by an acoustic field in a mass-conserved system. In the present work, we developed a master equation based on a hybrid Szilard-Fokker-Planck model, which accounts for mass transportation due to acoustic waves. This model can determine the kinetics of nucleation and the early stage of growth of clusters including the Ostwald ripening phenomenon. It was solved numerically to calculate the kinetics of an isothermal sonocrystallisation process in a system with mass transportation. The simulation results show that the effect of mass transportation for different excitations depends on the waveform as well as the imposed boundary conditions and tends to be noticeable in the case of shock waves. The derivations are generic and can be used with any acoustic source and waveform. PMID- 29331146 TI - Publisher's Note: "The Landau-de Gennes approach revisited: A minimal self consistent microscopic theory for spatially inhomogeneous nematic liquid crystals" [J. Chem. Phys. 147, 244505 (2017)]. PMID- 29331147 TI - Direct variational determination of the two-electron reduced density matrix for doubly occupied-configuration-interaction wave functions: The influence of three index N-representability conditions. AB - This work proposes the variational determination of two-electron reduced density matrices corresponding to the ground state of N-electron systems within the doubly occupied-configuration-interaction methodology. The P, Q, and G two-index N-representability conditions have been extended to the T1 and T2 (T2') three index ones and the resulting optimization problem has been addressed using a standard semidefinite program. We report results obtained from the doubly occupied-configuration-interaction method, from the two-index constraint variational procedure and from the two- and three-index constraint variational treatment. The discussion of these results along with a study of the computational cost demanded shows the usefulness of our proposal. PMID- 29331148 TI - Isolation of anti-extra-cellular vesicle single-domain antibodies by direct panning on vesicle-enriched fractions. AB - BACKGROUND: The thorough understanding of the physiological and pathological processes mediated by extracellular vesicles (EVs) is challenged by purification methods which are cumbersome, not reproducible, or insufficient to yield homogeneous material. Chromatography based on both ion-exchange and immune capture can represent an effective method to improve EV purification and successive analysis. METHODS: Cell culture supernatant was used as a model sample for assessing the capacity of anion-exchange chromatography to separate distinct EV fractions and to isolate nanobodies by direct panning on whole EVs to recover binders specific for the native conformation of EV-surface epitopes and suitable to develop EV immune-capture reagents. RESULTS: Anion-exchange chromatography of cell culture supernatant separated distinct protein-containing fractions and all of them were positive for CD9, a biomarker associated to some EVs. This suggested the existence of several EV fractions but did not help in separating EVs from other contaminants. We further isolated several nanobodies instrumental for implementing immune-affinity protocols. These were able to immobilize EVs from both cell culture supernatant and biological samples, to be used in ELISA, flow cytometry, and immune-purification. CONCLUSIONS: Here we report the first successful isolation of anti-EV nanobodies for the use in immunoaffinity-based EV capture by panning a phage library directly on partially purified EVs. This achievement paves the way for the application of direct EV panning for the discovery of novel antibody-vesicle surface biomarker pairs and represents the preliminary requirement for the development of selective immune-capture that, in combination with anion-exchange chromatography, can simplify the systematic stratification of EV sub-populations and their individual characterization. PMID- 29331149 TI - Correction to: Entrapment of an EGFR inhibitor into nanostructured lipid carriers (NLC) improves its antitumor activity against human hepatocarcinoma cells. AB - Following publication of our article [1], we became aware that Roberto Di Gesu had been omitted from the list of authors. The corrected author list and authors' contribution statement appear below. We apologize for any inconvenience this may have caused. PMID- 29331150 TI - Production of eicosapentaenoic acid by application of a delta-6 desaturase with the highest ALA catalytic activity in algae. AB - : Dunaliella salina is a unicellular green alga with a high alpha-linolenic acid (ALA) level, but a low eicosapentaenoic acid (EPA) level. In a previous analysis of the catalytic activity of delta 6 fatty acid desaturase (FADS6) from various species, FADS6 from Thalassiosira pseudonana (TpFADS6), a marine diatom, showed the highest catalytic activity for ALA. In this study, to enhance EPA production in D. salina, FADS6 from D. salina (DsFADS6) was identified, and substrate specificities for DsFADS6 and TpFADS6 were characterized. Furthermore, a plasmid harboring the TpFADS6 gene was constructed and overexpressed in D. salina. Our results revealed that EPA production reached 21.3 +/- 1.5 mg/L in D. salina transformants. To further increase EPA production, myoinositol (MI) was used as a growth-promoting agent; it increased the dry cell weight of D. salina transformants, and EPA production reached 91.3 +/- 11.6 mg/L. The combination of 12% CO2 aeration with glucose/KNO3 in the medium improved EPA production to 192.9 +/- 25.7 mg/L in the Ds-TpFADS6 transformant. We confirmed that the increase in ALA was optimal at 8 degrees C; the EPA percentage reached 41.12 +/- 4.78%. The EPA yield was further increased to 554.3 +/- 95.6 mg/L by supplementation with 4 g/L perilla seed meal (PeSM), 500 mg/L MI, and 12% CO2 aeration with glucose/KNO3 at varying temperatures. EPA production and the percentage of EPA in D. salina were 343.8-fold and 25-fold higher than those in wild-type D. salina, respectively. IMPORTANCE: FADS6 from Thalassiosira pseudonana, which demonstrates high catalytic activity toward alpha-linolenic acid, was used to enhance EPA production by Dunaliella salina. Transformation of FADS6 from Thalassiosira pseudonana into Dunaliella salina with myoinositol, CO2, low temperatures, and perilla seed meal supplementation substantially increased EPA production in Dunaliella salina to 554.3 +/- 95.6 mg/L. Accordingly, D. salina could be a potential alternative source of EPA and is suitable for its large-scale production. PMID- 29331151 TI - The impact of parental mental illness across the full diagnostic spectrum on externalising and internalising vulnerabilities in young offspring. AB - BACKGROUND: The intergenerational risk for mental illness is well established within diagnostic categories, but the risk is unlikely to respect diagnostic boundaries and may be reflected more broadly in early life vulnerabilities. We aimed to establish patterns of association between externalising and internalising vulnerabilities in early childhood and parental mental disorder across the full spectrum of diagnoses. METHODS: A cohort of Australian children (n = 69 116) entering the first year of school in 2009 were assessed using the Australian Early Development Census, providing measures of externalising and internalising vulnerability. Parental psychiatric diagnostic status was determined utilising record-linkage to administrative health datasets. RESULTS: Parental mental illness, across diagnostic categories, was associated with all child externalising and internalising domains of vulnerability. There was little evidence to support interaction by parental or offspring sex. CONCLUSIONS: These findings have important implications for informing early identification and intervention strategies in high-risk offspring and for research into the causes of mental illness. There may be benefits to focusing less on diagnostic categories in both cases. PMID- 29331152 TI - Functioning before and after a major depressive episode: pre-existing vulnerability or scar? A prospective three-wave population-based study. AB - BACKGROUND: The vulnerability hypothesis suggests that impairments after remission of depressive episodes reflect a pre-existing vulnerability, while the scar hypothesis proposes that depression leaves residual impairments that confer risk of subsequent episodes. We prospectively examined vulnerability and scar effects in mental and physical functioning in a representative Dutch population sample. METHODS: Three waves were used from the Netherlands Mental Health Survey and Incidence Study-2, a population-based study with a 6-years follow-up. Mental and physical functioning were assessed with the Medical Outcomes Study Short Form (SF-36). Major depressive disorder (MDD) was assessed with the Composite International Diagnostic Interview 3.0. Vulnerability effects were examined by comparing healthy controls (n = 2826) with individuals who developed a first onset depressive episode during first follow-up but did not have a lifetime diagnosis of MDD at baseline (n = 181). Scarring effects were examined by comparing pre- and post-morbid functioning in individuals who developed a depressive episode after baseline that was remitted at the third wave (n = 108). RESULTS: Both mental (B = -5.4, s.e. = 0.9, p < 0.001) and physical functioning (B = -8.2, s.e. = 1.1, p < 0.001) at baseline were lower in individuals who developed a first depressive episode after baseline compared with healthy controls. This effect was most pronounced in people who developed a severe episode. No firm evidence of scarring in mental or physical functioning was found. In unadjusted analyses, physical functioning was still lowered post morbidly (B = -5.1, s.e. = 2.1, p = 0.014), but this effect disappeared in adjusted analyses. CONCLUSIONS: Functional impairments after remission of depression seem to reflect a pre-existing vulnerability rather than a scar. PMID- 29331153 TI - Is cognitive impairment associated with antipsychotic dose and anticholinergic equivalent loads in first-episode psychosis? AB - BACKGROUND: Cognitive deficits are a core feature of early stages in schizophrenia. However, the extent to which antipsychotic (AP) have a deleterious effect on cognitive performance remains under debate. We aim to investigate whether anticholinergic loadings and dose of AP drugs in first episode of psychosis (FEP) in advanced phase of remission are associated with cognitive impairment and the differences between premorbid intellectual quotient (IQ) subgroups. METHODS: Two hundred and sixty-six patients participated. The primary outcomes were cognitive dimensions, dopaminergic/anticholinergic load of AP [in chlorpromazine equivalents (Eq-CPZ) and the Anticholinergic Risk Scale (ARS), respectively]. RESULTS: Impairments in processing speed, verbal memory and global cognition were significantly associated with high Eq-CPZ and verbal impairment with high ARS score. Moreover, this effect was higher in the low IQ subgroup. CONCLUSIONS: Clinicians should be aware of the potential cognitive impairment associated with AP in advanced remission FEP, particularly in lower premorbid IQ patients. PMID- 29331154 TI - Predicting Multidrug-Resistant Gram-Negative Bacterial Colonization and Associated Infection on Hospital Admission: Methodological Issues. PMID- 29331155 TI - Performance of a Novel Antipseudomonal Antibiotic Consumption Metric Among Academic Medical Centers in the United States. AB - A metric was developed to identify hospital proportion of carbapenem consumption (PoCC) among antipseudomonal antibiotics. The PoCC varied significantly among academic medical centers by Census Bureau geographic division after adjusting for patient mix. This metric may be useful in identifying disproportionate carbapenem use and potential carbapenem overuse. Infect Control Hosp Epidemiol 2018;39:229 232. PMID- 29331156 TI - High Hand Contamination Rates During Norovirus Outbreaks in Long-Term Care Facilities. AB - We examined norovirus contamination on hands of ill patients during 12 norovirus outbreaks in 12 long-term care facilities (LTCFs). The higher frequency and norovirus titers on hands of residents compared to hands of heathcare workers highlights the importance of adhering to appropriate hand hygiene practices during norovirus outbreaks in LTCFs. Infect Control Hosp Epidemiol 2018;39:219 221. PMID- 29331157 TI - Eccentric placentae have reduced surface area and are associated with lower birth weight in babies small for gestational age. AB - Placental structure and function determine birth outcomes. Placental mass does not always correlate with fetal birth weight (BW) in uncomplicated pregnancies which raises the possibility of other variables such as placental shape and cord insertion being the determinants of placental efficiency. In total, 160 women with singleton pregnancy, recruited into a pregnancy cohort were studied. Placental weight (PW) was measured and other data were obtained from clinical records. Birth outcomes were classified as small for gestational age (SGA) and appropriate for gestational age (AGA) based on fetal gender, gestational age (GA) and BW. High-resolution images of the chorionic plate were recorded. The shape of the placenta and the insertion of the cord were measured using eccentricity index (EI) and cord centrality index (CCI). Only placentae with eccentrically inserted cords (n=136) were included. The mean BW and PW were 2942 (+/-435) g and 414 (+/ 82) g with average GA of 38.6 weeks. The mean CCI and EI was 0.483 (+/-0.17) and 0.482 (+/-0.16). Neither of these correlated with placental efficiency. However, EI showed negative correlation with placental surface area and breadth. Upon sub grouping the cohort into SGA (n=32) and AGA (n=104), the SGA babies with the highest EI (third tertile) had significantly lower BW than those with the least eccentric placentae (first tertile). Although eccentric-shaped placentae were present in both SGA and AGA groups, the effect on BW was observed only in the SGA group. PMID- 29331158 TI - Dietary sources of energy and nutrients in the contemporary diet of Inuit adults: results from the 2007-08 Inuit Health Survey. AB - OBJECTIVE: To characterize the major components of the contemporary Inuit diet and identify the primary sources of energy and essential nutrients. DESIGN: Dietary data were derived from the 24 h recall collected by the Inuit Health Survey (IHS) from 2007 to 2008. The population proportion method was used to determine the percentage contribution of each group. Unique food items/preparations (ninety-three country foods and 1591 market foods) were classified into eight country food groups and forty-one market food groups. Nutrient composition of each food item was obtained from the Canadian Nutrient File. SETTING: Thirty-six communities across three Inuit regions of northern Canada. SUBJECTS: A representative sample (n 2095) of non-pregnant Inuit adults (>=18 years), selected through stratified random sampling. RESULTS: Despite their modest contribution to total energy intake (6.4-19.6 %, by region) country foods represented a major source of protein (23-52 %), Fe (28-54 %), niacin (24-52 %) and vitamins D (up to 73 %), B6 (18-55 %) and B12 (50-82 %). By contrast, the three most popular energy-yielding market foods (i.e. sweetened beverages, added sugar and bread) collectively contributed approximately 20 % of total energy, while contributing minimally to most micronutrients. A notable exception was the contribution of these foods to Ca (13-21 %) and vitamins E (17-35 %) and C (as much as 50 %). Solid fruits were consumed by less than 25 % of participants while vegetables were reported by 38-59 % of respondents. CONCLUSIONS: Country foods remain a critical dimension of the contemporary Inuit diet. PMID- 29331159 TI - Diagnostic Stewardship for Healthcare-Associated Infections: Opportunities and Challenges to Safely Reduce Test Use. PMID- 29331160 TI - Reduction in Rate of Nosocomial Respiratory Virus Infections in a Children's Hospital Associated With Enhanced Isolation Precautions. AB - OBJECTIVE To determine whether the use of enhanced isolation precautions (droplet and contact precautions) for inpatients with respiratory tract viral infections is associated with a reduction in rate of nosocomial viral respiratory infections. DESIGN Quasi-experimental study with the rate of nosocomial respiratory virus infection as the primary dependent variable and rate of nosocomial Clostridium difficile infection as a nonequivalent dependent variable comparator. SETTING Cohen Children's Medical Center of NY, a tertiary-care children's hospital attached to a large general hospital. INTERVENTION During years 1 and 2 (July 2012 through June 2014), the Centers for Disease Control and Prevention/Healthcare Infection Control Practices Advisory Committee's recommended isolation precautions for inpatients with selected respiratory virus infections were in effect. Enhanced isolation precautions were in effect during years 3 and 4 (July, 2014 through June, 2016), except for influenza, for which enhanced precautions were in effect during year 4 only. RESULTS During the period of enhanced isolation precautions, the rate of nosocomial respiratory virus infections with any of 4 virus categories decreased 39% from 0.827 per 1,000 hospital days prior to enhanced precautions to 0.508 per 1,000 hospital days (P<.0013). Excluding rhinovirus/enterovirus infections, the rates decreased 58% from 0.317 per 1,000 hospital days to 0.134 per 1,000 hospital days during enhanced precautions (P<.0014). During these periods, no significant change was detected in the rate of nosocomial C. difficile infection. CONCLUSIONS Enhanced isolation precautions for inpatients with respiratory virus infections were associated with a reduction in the rate of nosocomial respiratory virus infections. Infect Control Hosp Epidemiol 2018;39:152-156. PMID- 29331161 TI - Hormone therapy, gender affirmation surgery, and their association with recent suicidal ideation and depression symptoms in transgender veterans. AB - BACKGROUND: Access to transition-related medical interventions (TRMIs) for transgender veterans has been the subject of substantial public interest and debate. To better inform these important conversations, the current study investigated whether undergoing hormone or surgical transition intervention(s) relates to the frequency of recent suicidal ideation (SI) and symptoms of depression in transgender veterans. METHODS: This study included a cross sectional, national sample of 206 self-identified transgender veterans. They self reported basic demographics, TRMI history, recent SI, and symptoms of depression through an online survey. RESULTS: Significantly lower levels of SI experienced in the past year and 2-weeks were seen in veterans with a history of both hormone intervention and surgery on both the chest and genitals in comparison with those who endorsed a history of no medical intervention, history of hormone therapy but no surgical intervention, and those with a history of hormone therapy and surgery on either (but not both) the chest or genitals when controlling for sample demographics (e.g., gender identity and annual income). Indirect effect analyses indicated that lower depressive symptoms experienced in the last 2-weeks mediated the relationship between the history of surgery on both chest and genitals and SI in the last 2-weeks. CONCLUSIONS: Results indicate the potential protective effect that TRMI may have on symptoms of depression and SI in transgender veterans, particularly when both genitals and chest are affirmed with one's gender identity. Implications for policymakers, providers, and researchers are discussed. PMID- 29331162 TI - Unnecessary Removal of Central Venous Catheters in Cancer Patients with Bloodstream Infections. AB - We evaluated the rate of central venous catheter (CVC) removal in 283 cancer patients with bloodstream infections (BSIs). Removal of CVCs occurred unnecessarily in 57% of patients with non-central-line-associated BSI (non CLABSI), which was equivalent to the rate of CVC removal in patients with CLABSIs. Physician education and safe interventions to salvage the vascular access are warranted. Infect Control Hosp Epidemiol 2018;39:222-225. PMID- 29331163 TI - Healthcare Personnel Relationships Related to Coordination of Catheter Care. PMID- 29331164 TI - Adherence to the Danish food-based dietary guidelines and risk of myocardial infarction: a cohort study. AB - OBJECTIVE: A direct way to evaluate food-based dietary guidelines is to assess if adherence is associated with development of non-communicable diseases. Thus, the objective was to develop an index to assess adherence to the 2013 Danish food based dietary guidelines and to investigate the association between adherence to the index and risk of myocardial infarction (MI). DESIGN: Population-based cohort study with recruitment of participants in 1993-1997. Information on dietary intake was collected at baseline using an FFQ and an index ranging from 0 to 6 points was created to assess adherence to the 2013 Danish food-based dietary guidelines. MI cases were identified by record linkage to the Danish National Patient Register and the Causes of Death Register. Cox proportional hazards models were used to estimate hazard ratios (HR) of MI. SETTING: Greater areas of Aarhus and Copenhagen, Denmark. SUBJECTS: Men and women aged 50-64 years (n 55 021) from the Diet, Cancer and Health study. RESULTS: A total of 3046 participants were diagnosed with first-time MI during a median follow-up of 16.9 years. A higher Danish Dietary Guidelines Index score was associated with a lower risk of MI. After adjustment for potential confounders, the hazard of MI was 13 % lower among men with a score of 3-<4 (HR=0.87; 95 % CI 0.78, 0.96) compared with men with a score of <3. The corresponding HR among women was 0.76 (95 % CI 0.63, 0.93). CONCLUSIONS: Adherence to the 2013 Danish food-based dietary guidelines was inversely associated with risk of MI. PMID- 29331165 TI - Investigating the population structure and genetic differentiation of livestock guard dog breeds. AB - Livestock guarding dogs are a valuable adjunct to the pastoral community. Having been traditionally selected for their working ability, they fulfil their function with minimal interaction or command from their human owners. In this study, the population structure and the genetic differentiation of three Italian livestock guardian breeds (Sila's Dog, Maremma and Abruzzese Sheepdog and Mannara's Dog) and three functionally and physically similar breeds (Cane Corso, Central Asian Shepherd Dog and Caucasian Shepherd Dog), totalling 179 dogs unrelated at the second generation, were investigated with 18 autosomal microsatellite markers. Values for the number of alleles per locus, observed and expected heterozygosity, Hardy-Weinberg Equilibrium, F stats, Nei's and Reynold's genetic distances, clustering and sub-population formation abilities and individual genetic structures were calculated. Our results show clear breed differentiation, whereby all the considered breeds show reasonable genetic variability despite small population sizes and variable selection schemes. These results provide meaningful data to stakeholders in specific breed and environmental conservation programmes. PMID- 29331166 TI - Institution-wide and Within-Patient Evolution of Daptomycin Susceptibility in Vancomycin-Resistant Enterococcus faecium Bloodstream Infections. AB - We report daptomycin minimum inhibitory concentrations (MICs) for vancomycin resistant Enterococcus faecium isolated from bloodstream infections over a 4-year period. The daptomycin MIC increased over time hospital-wide for initial isolates and increased over time within patients, culminating in 40% of patients having daptomycin-nonsusceptible isolates in the final year of the study. Infect Control Hosp Epidemiol 2018;39:226-228. PMID- 29331167 TI - The association between psychotic experiences and traumatic life events: the role of the intention to harm. AB - BACKGROUND: Previous work showed traumatic life events (TLE) with intention to harm, like bullying and abuse, to be more strongly associated with psychotic experiences (PE) than other types of trauma, like accidents. However, this association is subject to reporting bias and can be confounded by demographic characteristics and by differences in dose of exposure across different trauma categories. We studied the association between TLE with and without intention to harm and PE, taking into account potential confounders and biases. METHODS: A total of 2245 children and adolescents aged 6-14 years were interviewed by psychologists. The interview included the presence of 20 PE (both self-report and psychologist evaluation). In addition, parents provided information on child exposure to trauma, mental health and PE. RESULTS: Results showed no significant association between TLE without intention to harm only and PE for the three methods of assessment of PE (self-report, parent report and psychologist rating). On the other hand, there was a positive association between PE and TLE in groups exposed to traumatic experiences with intention to harm (with intention to harm only and with and without intention to harm). Results remained significant after controlling for demographic and clinical confounders, but this positive association was no longer significant after adjusting for the number of TLE. CONCLUSIONS: TLE with intention to harm display a stronger association with PE than TLE without intention to harm, and this difference is likely reducible to a greater level of traumatic exposure associated with TLE with intention to harm. PMID- 29331168 TI - Dietary patterns and their associations with home food availability among Finnish pre-school children: a cross-sectional study. AB - OBJECTIVE: To study the associations between home food availability and dietary patterns among pre-school children. DESIGN: Cross-sectional study in which parents of the participating children filled in an FFQ and reported how often they had certain foods in their homes. We derived dietary pattern scores using principal component analysis, and composite scores describing the availability of fruits and vegetables as well as sugar-enriched foods in the home were created for each participant. We used multilevel models to investigate the associations between availability and dietary pattern scores. SETTING: The DAGIS study, Finland. SUBJECTS: The participants were 864 Finnish 3-6-year-old children recruited from sixty-six pre-schools. The analyses included 711 children with sufficient data. RESULTS: We identified three dietary patterns explaining 16.7 % of the variance. The patterns were named 'sweets-and-treats' (high loadings of e.g. sweet biscuits, chocolate, ice cream), 'health-conscious' (high loadings of e.g. nuts, natural yoghurt, berries) and 'vegetables-and-processed meats' (high loadings of e.g. vegetables, cold cuts, fruit). In multivariate models, the availability of fruits and vegetables was inversely associated with the sweets and-treats pattern (beta=-0.05, P<0.01) and positively associated with the health conscious (beta=0.07, P<0.01) and vegetables-and-processed meats patterns (beta=0.06, P<0.01). The availability of sugar-enriched foods was positively associated with the sweets-and-treats pattern (beta=0.10, P<0.01) and inversely associated with the health-conscious pattern (beta=-0.03, P<0.01). CONCLUSIONS: Considering dietary patterns, the availability of sugar-enriched foods in the home seems to have a stronger role than that of fruits and vegetables. Parents should restrict the availability of unhealthy foods in the home. PMID- 29331169 TI - The introduction of simple cardiorespiratory fitness testing in overweight/obese type 2 diabetics: a pilot study. AB - BACKGROUND: Low level of cardiorespiratory fitness has been recognized as an important independent and modifiable risk factor of increased morbidity and mortality. However, in standard outpatient settings, patients are not routinely screened for fitness and advantages of such testing for the management of type 2 diabetes have not been defined.AimTo describe the toleration of a fast, simple and practicable fitness test (2-min step-in-place test) by overweight/obese type 2 diabetics and their performance indicated by 2-min step-in-place test score (STS). To study short-term anthropometric, functional and metabolic changes following the implementation of the test in the selected population. METHODS: A total of 33 overweight/obese type 2 diabetics underwent, besides routine examination at the outpatient clinic, the fitness test (group A). Patients were asked to increase their regular physical activity with focus on walking without change in diet and chronic medication. Three to four months later, the subjects were tested again. An identical number of age- and sex-matched obese diabetics followed in our outpatient clinic (without fitness testing), was randomly selected from the Hospital Information System (control group B).FindingsAll patients subjected to fitness testing completed the protocol successfully. STS score was found to have a considerable range with differences between males and females at the borderline of statistical significance. The data are compliant with lower aerobic endurance of obese diabetics compared with healthy population. Within study period, the tested group presented with improvements in STS (referring especially to the males) as well as in several laboratory parameters of glucose and lipid homeostasis, glomerular function and subclinical inflammation with no reflection in anthropometry. Group B demonstrated no significant change. In conclusion, 2-min step-in-place test is fast, undemanding and well-tolerated by patients and personnel. Following its validation based on cardiopulmonary exercise testing, the test may prove recommendable for screening or self-monitoring purposes. PMID- 29331170 TI - Implementation Lessons Learned From the Benefits of Enhanced Terminal Room (BETR) Disinfection Study: Process and Perceptions of Enhanced Disinfection with Ultraviolet Disinfection Devices. AB - OBJECTIVE To summarize and discuss logistic and administrative challenges we encountered during the Benefits of Enhanced Terminal Room (BETR) Disinfection Study and lessons learned that are pertinent to future utilization of ultraviolet (UV) disinfection devices in other hospitals DESIGN Multicenter cluster randomized trial SETTING AND PARTICIPANTS Nine hospitals in the southeastern United States METHODS All participating hospitals developed systems to implement 4 different strategies for terminal room disinfection. We measured compliance with disinfection strategy, barriers to implementation, and perceptions from nurse managers and environmental services (EVS) supervisors throughout the 28 month trial. RESULTS Implementation of enhanced terminal disinfection with UV disinfection devices provides unique challenges, including time pressures from bed control personnel, efficient room identification, negative perceptions from nurse managers, and discharge volume. In the course of the BETR Disinfection Study, we utilized several strategies to overcome these barriers: (1) establishing safety as the priority; (2) improving communication between EVS, bed control, and hospital administration; (3) ensuring availability of necessary resources; and (4) tracking and providing feedback on compliance. Using these strategies, we deployed ultraviolet (UV) disinfection devices in 16,220 (88%) of 18,411 eligible rooms during our trial (median per hospital, 89%; IQR, 86%-92%). CONCLUSIONS Implementation of enhanced terminal room disinfection strategies using UV devices requires recognition and mitigation of 2 key barriers: (1) timely and accurate identification of rooms that would benefit from enhanced terminal disinfection and (2) overcoming time constraints to allow EVS cleaning staff sufficient time to properly employ enhanced terminal disinfection methods. TRIAL REGISTRATION Clinical trials identifier: NCT01579370 Infect Control Hosp Epidemiol 2018;39:157-163. PMID- 29331173 TI - Editorial. PMID- 29331174 TI - Transcatheter tricuspid repair: The knifeless cutting edge. PMID- 29331171 TI - The genotypic and phenotypic spectrum of MTO1 deficiency. AB - BACKGROUND: Mitochondrial diseases, a group of multi-systemic disorders often characterized by tissue-specific phenotypes, are usually progressive and fatal disorders resulting from defects in oxidative phosphorylation. MTO1 (Mitochondrial tRNA Translation Optimization 1), an evolutionarily conserved protein expressed in high-energy demand tissues has been linked to human early onset combined oxidative phosphorylation deficiency associated with hypertrophic cardiomyopathy, often referred to as combined oxidative phosphorylation deficiency-10 (COXPD10). MATERIAL AND METHODS: Thirty five cases of MTO1 deficiency were identified and reviewed through international collaboration. The cases of two female siblings, who presented at 1 and 2years of life with seizures, global developmental delay, hypotonia, elevated lactate and complex I and IV deficiency on muscle biopsy but without cardiomyopathy, are presented in detail. RESULTS: For the description of phenotypic features, the denominator varies as the literature was insufficient to allow for complete ascertainment of all data for the 35 cases. An extensive review of all known MTO1 deficiency cases revealed the most common features at presentation to be lactic acidosis (LA) (21/34; 62% cases) and hypertrophic cardiomyopathy (15/34; 44% cases). Eventually lactic acidosis and hypertrophic cardiomyopathy are described in 35/35 (100%) and 27/34 (79%) of patients with MTO1 deficiency, respectively; with global developmental delay/intellectual disability present in 28/29 (97%), feeding difficulties in 17/35 (49%), failure to thrive in 12/35 (34%), seizures in 12/35 (34%), optic atrophy in 11/21 (52%) and ataxia in 7/34 (21%). There are 19 different pathogenic MTO1 variants identified in these 35 cases: one splice-site, 3 frameshift and 15 missense variants. None have bi-allelic variants that completely inactivate MTO1; however, patients where one variant is truncating (i.e. frameshift) while the second one is a missense appear to have a more severe, even fatal, phenotype. These data suggest that complete loss of MTO1 is not viable. A ketogenic diet may have exerted a favourable effect on seizures in 2/5 patients. CONCLUSION: MTO1 deficiency is lethal in some but not all cases, and a genotype-phenotype relation is suggested. Aside from lactic acidosis and cardiomyopathy, developmental delay and other phenotypic features affecting multiple organ systems are often present in these patients, suggesting a broader spectrum than hitherto reported. The diagnosis should be suspected on clinical features and the presence of markers of mitochondrial dysfunction in body fluids, especially low residual complex I, III and IV activity in muscle. Molecular confirmation is required and targeted genomic testing may be the most efficient approach. Although subjective clinical improvement was observed in a small number of patients on therapies such as ketogenic diet and dichloroacetate, no evidence based effective therapy exists. PMID- 29331172 TI - Blood phenylalanine reduction corrects CNS dopamine and serotonin deficiencies and partially improves behavioral performance in adult phenylketonuric mice. AB - Central nervous system (CNS) deficiencies of the monoamine neurotransmitters dopamine and serotonin have been implicated in the pathophysiology of neuropsychiatric dysfunction in human phenylketonuria (PKU). In this study, we confirmed the occurrence of brain dopamine and serotonin deficiencies in association with severe behavioral alterations and cognitive impairments in hyperphenylalaninemic C57BL/6-Pahenu2/enu2 mice, a model of human PKU. Phenylalanine-reducing treatments, including either dietary phenylalanine restriction or liver-directed gene therapy, initiated during adulthood were associated with increased brain monoamine content along with improvements in nesting behavior but without a change in the severe cognitive deficits exhibited by these mice. At euthanasia, there was in Pahenu2/enu2 brain a significant reduction in the protein abundance and maximally stimulated activities of tyrosine hydroxylase (TH) and tryptophan hydroxylase 2 (TPH2), the rate limiting enzymes catalyzing neuronal dopamine and serotonin synthesis respectively, in comparison to levels seen in wild type brain. Phenylalanine-reducing treatments initiated during adulthood did not affect brain TH or TPH2 content or maximal activity. Despite this apparent fixed deficit in striatal TH and TPH2 activities, initiation of phenylalanine-reducing treatments yielded substantial correction of brain monoamine neurotransmitter content, suggesting that phenylalanine-mediated competitive inhibition of already constitutively reduced TH and TPH2 activities is the primary cause of brain monoamine deficiency in Pahenu2 mouse brain. We propose that CNS monoamine deficiency may be the cause of the partially reversible adverse behavioral effects associated with chronic HPA in Pahenu2 mice, but that phenylalanine-reducing treatments initiated during adulthood are unable to correct the neuropathology and attendant cognitive deficits that develop during juvenile life in late-treated Pahenu2/enu2 mice. PMID- 29331175 TI - TRACERx: Tracking tumor evolution to impact the course of lung cancer. PMID- 29331176 TI - Fontan outcomes: Is being educated as good as being wealthy and healthy? PMID- 29331177 TI - Trans-diaphragmatic chest surgery: Bringing owls to Athens? PMID- 29331178 TI - Multiple mechanical support modalities and cardiac transplantation in a young child with corrected transposition. PMID- 29331179 TI - Surprises happen all the time. PMID- 29331180 TI - Oh, father, where art we? Left internal mammary artery with greater saphenous vein grafts still rules surgical coronary revascularization after 30 years. PMID- 29331181 TI - Play it again...Dr Gibbon. PMID- 29331182 TI - The long and winding route. PMID- 29331183 TI - ? PMID- 29331185 TI - [Patients and caregivers in the treatment of addictions]. AB - Since the 1980s, risk and harm reduction has been a public health issue in the area of addictions. A new approach has been adopted with drug users, who are considered as patients like any other and players in their own health care. The therapeutic alliance with the caregiver is therefore essential. PMID- 29331184 TI - ? PMID- 29331186 TI - [Addictology, promoting users' power to act]. AB - The notion of risk reduction applies to all uses, drinking of alcohol and smoking including, addictions without drugs likewise. With regard to drugs, mentalities change. We now talk more of risks than fault or deviance. Following, collaboration between health professionals and users, sharing and cooperation are the conditions necessary to develop a modern humanist and social addictology approach. PMID- 29331187 TI - [Nursing role and risk reduction for drug users]. AB - The Ithaque association is a drop-in and risk reduction centre for drug users. It caters for anyone 'overwhelmed' by an addiction with a view to supporting them in the treatment approach they wish to undertake. Nurses play a key role throughout the user's care pathway. PMID- 29331188 TI - [Care pathway and life course of drug-addicted patients]. AB - Placing drug addicts, notably heroin addicts, at the centre of their care project, itself part of a life project, is the objective of the Le Lac d'Argent association in Annecy. Caregivers have been able to reflect on their practices and help to fight against preconceived ideas. This article presents the experience of a global support approach. PMID- 29331189 TI - [Day clinic, a gateway towards risk reduction]. AB - The addictology day clinic at Fernand-Widal hospital in Paris caters mainly for patients suffering from alcohol dependence. The aim is to consolidate the withdrawal which has taken place, to help reduce risks and harm and to support people waiting for follow-up care. PMID- 29331190 TI - ? PMID- 29331191 TI - [An innovative teleconsultation project in liver transplantation]. AB - The Tours and Bourges hospital teams have developed innovative collaborative practices in the monitoring of patients having received a liver transplant. Teleconsultation helps the patient resume their normal life by enabling them to avoid tiring and time-consuming appointments. PMID- 29331192 TI - [Psychiatry and palliative care, collaboration for the benefit of the patient]. AB - As palliative care units continue to develop, the provision of end-of-life care for patients with a chronic mental illness needs to be addressed. Aside from the somatic comorbidities to which these patients are particularly exposed and in view of the specificity of psychiatric treatment, the forms of end-of-life support for a patient with schizophrenia are described here, based on the experience of a psychiatric unit in the Var region. PMID- 29331193 TI - [Using connected objects to favour patients' adherence to physical activity]. AB - A study explored the factors which can have an impact on the use of connected objects to improve patients' adherence to physical activity, when they suffer from chronic low back pain. The results can be used to adjust the development of an application aimed at patients with chronic low back pain. PMID- 29331194 TI - [Specificities of nursing care in neurological intensive care]. AB - In the acute phase of the treatment of patients with brain injuries, the management of secondary brain injuries of systemic origin is a priority. A neurosurgical intensive care paramedical team shares their experience of the care delivered and the constant monitoring carried out to optimise, with the medical team, the patient's outcome and to innovate practices. PMID- 29331195 TI - [Educational project for raising awareness of food hygiene in infant schools]. AB - Five students from a nursing training institute designed an educational initiative aimed at infant school pupils. The objective of this primary prevention intervention was to raise children's awareness of food hygiene. PMID- 29331196 TI - ? PMID- 29331197 TI - Talking about the Impact of Screen-viewing on Health. AB - Emilia is a young woman admitted to the hospital for pyelonephritis. Sophie finds out, from the morning reports about her, that she stays awake very late every night watching television or chatting on her mobile phone. PMID- 29331198 TI - ? PMID- 29331199 TI - ? PMID- 29331200 TI - Saliency modulates affective evaluations but not behavioral responses in the ultimatum game. AB - Although numerous studies have demonstrated that the saliency of perceptual information guides attention, the effect of perceptual saliency in high-level social situations remains unclear. Here, in a modified ultimatum game that included both gain and loss sharing, we highlighted either the fairness (fair or unfair) or the valence (gain or loss) aspect of a proposed offer using salient background colors with social meanings. The results showed that emotional responses to proposed offers were influenced by visual saliency. Specifically, individuals felt more dissatisfied about unfair (as opposed to fair) offers when fairness was emphasized than when valence was emphasized or no emphasis; and similarly, individuals felt more dissatisfied about loss situations compared to gain situations when valence was emphasized than when fairness was emphasized or no emphasis. However, this attentional modulation of social information led to changes only on affective responses but not on actual behavioral responses. Our findings indicate that attentional modulation of social information has a profound impact on affective evaluation by changing how information is weighed. PMID- 29331201 TI - Impact of polymer geometry on the interactions of protein-PEG conjugates. AB - The conjugation of high molecular weight polyethylene glycol (PEG) to an active pharmaceutical ingredient (API) is an attractive strategy for the modification of biophysical and biodistribution properties of the API. Indeed, several therapeutic proteins conjugated to PEG have been safely administered in the clinic. While there have been studies on the configuration of these conjugates in solution, investigations on the impact of PEG geometry on protein-PEG conjugate interactions is limited. In this study, we use dynamic light scattering (DLS), rheology, and small-angle neutron scattering (SANS) to investigate the biophysical solution and interaction behavior of a 50kDa Fab protein attached to either a linear or tetrameric (branched) 40kDa PEG molecule. The hydrodynamic radii, diffusivity, viscosity and pair distance distribution function (PDDF) were obtained for the protein-PEG conjugates in solution. An analysis revealed that interactions between unconjugated proteins were quite attractive, however linear PEG-protein conjugates exhibited net repulsive interactions, similar to that of the unconjugated polymer. Tetramer PEG-protein conjugates on the other hand, exhibited a net weak attractive interaction, indicating a more balanced distribution of repulsive and attractive interaction states. Further analysis of the SANS data using geometric models consistent with the PDDF elucidated the conjugates' equilibrium configuration in solution. Insights gained from measurements and analysis used here can also be useful in predicting how conjugate geometries affect viscosity and aggregation behavior, which are important in determining suitable protein-polymer drug formulations. PMID- 29331202 TI - New anesthetic considerations in thoracic surgery. PMID- 29331203 TI - Have we forgotten about forgetting? A critical review of 'accelerated long-term forgetting' in temporal lobe epilepsy. AB - Forgetting has been researched for over a century. This literature highlighted how forgetting rates can vary dependent on factors in the design and method. Recent interest in forgetting revived with evidence suggesting that seizures experienced almost immediately after matched learning could accelerate forgetting. This was followed by a growth in forgetting studies in patients with temporal lobe epilepsy (TLE), including a subset of those with transient epileptic amnesia (TEA). These patients have been described as expressing concerns about memory, yet often perform within 'normal' ranges on standard neuropsychological memory assessments. It was argued that such patients were experiencing a phenomenon termed 'accelerated long-term forgetting': apparently normal learning and initial retention with abnormal forgetting over days to weeks after learning. In this review, we critically evaluate aspects of this definition, namely whether learning and initial retention is, in fact, 'normal' at first, and further what this means in relation to 'when' abnormal forgetting starts. We propose a shift in the understanding of accelerated forgetting in TLE from an emphasis on late-onset forgetting to greater focus on early-onset, progressively greater forgetting. We argue that most evidence from studies to date could be conceptualized within the latter framework, with differences in forgetting patterns reflective of a continuum of severity and/or sensitivity. PMID- 29331204 TI - A cognitive model for multidigit number reading: Inferences from individuals with selective impairments. AB - We propose a detailed cognitive model of multi-digit number reading. The model postulates separate processes for visual analysis of the digit string and for oral production of the verbal number. Within visual analysis, separate sub processes encode the digit identities and the digit order, and additional sub processes encode the number's decimal structure: its length, the positions of 0, and the way it is parsed into triplets (e.g., 314987 -> 314,987). Verbal production consists of a process that generates the verbal structure of the number, and another process that retrieves the phonological forms of each number word. The verbal number structure is first encoded in a tree-like structure, similarly to syntactic trees of sentences, and then linearized to a sequence of number-word specifiers. This model is based on an investigation of the number processing abilities of seven individuals with different selective deficits in number reading. We report participants with impairment in specific sub-processes of the visual analysis of digit strings - in encoding the digit order, in encoding the number length, or in parsing the digit string to triplets. Other participants were impaired in verbal production, making errors in the number structure (shifts of digits to another decimal position, e.g., 3,040 -> 30,004). Their selective deficits yielded several dissociations: first, we found a double dissociation between visual analysis deficits and verbal production deficits. Second, several dissociations were found within visual analysis: a double dissociation between errors in digit order and errors in the number length; a dissociation between order/length errors and errors in parsing the digit string into triplets; and a dissociation between the processing of different digits - impaired order encoding of the digits 2-9, without errors in the 0 position. Third, within verbal production, a dissociation was found between digit shifts and substitutions of number words. A selective deficit in any of the processes described by the model would cause difficulties in number reading, which we propose to term "dysnumeria". PMID- 29331205 TI - Free thyroxine and TSH interact with secreted protein acidic and rich in cysteine like 1 in ischemic stroke. AB - The role of the thyroid gland in ischemic stroke pathology is not well understood. As thyroid hormones modulate the extracellular matrix, we explored the possible link between them and secreted protein acidic and rich in cysteine like 1 (SC1) - one of the extracellular matrix molecules. In the 81 patients with acute ischemic stroke, serum SC1 levels were much higher compared with 30 control subjects: 4.47 vs 2.43ng/mL (p<0.001). Serum levels of free thyroxine (fT4) were higher in stroke subjects compared to those of controls (p=0.03). In stroke patients, TSH concentration was lower than in the control group (p=0.03). SC1 levels positively correlated with fT4 levels (p=0.02) and negatively with TSH (p=0.03) in stroke patients. Our results confirmed the association between thyroid hormones and SC1 - extracellular matrix protein. PMID- 29331206 TI - Mechanical thrombectomy: Determining the proportion of eligible acute ischemic stroke patients in the cohort of single academic stroke center. AB - BACKGROUND AND PURPOSE: Mechanical thrombectomy (MT) is now well-established treatment method for selected patients with acute ischemic stroke (AIS) and efforts are being made to incorporate it into the systems of stroke care. Our objective is to assess the number of AIS individuals eligible for MT in the cohort of single academic stroke center. METHODS: We retrospectively reviewed initial non-invasive vascular imaging data of AIS patients presenting within 5h of symptom onset for the presence of large vessel occlusion (LVO) over 2-year period (2015-2016). Among subjects confirmed with LVO: time-to-presentation, premorbid functional and on-admission neurological state, site of occlusion and initial imaging data were further assessed. Two sets of criteria based on recent trials and recommendations were used to determine MT eligibility. The onset-to evaluation time limit was set to 5h allowing <=60min procedure initiation delay. RESULTS: 895 patients with the final diagnosis of AIS were admitted to our stroke center as the initial treatment facility. 246 (27.5%) presented within 5h of symptom onset and had non-invasive imaging performed. Among those 102 (41.5%) had causative LVO. The number of <=5h presenting patients eligible for MT was 51 (20.7%) when applying restrictive or 80 (32.5%) with more permissive criteria. CONCLUSION: Among AIS patients, in whom onset-to-arrival time allowed to initiate the endovascular procedure within 6h of symptom duration, 21% were eligible for MT treatment according to more and 33% to less restrictive criteria. It accounts for about 6% and 9% of all AIS cases, respectively. PMID- 29331207 TI - Cerebral amyloid angiopathy-related inflammation - A case report presenting diagnostic difficulties. AB - We describe an 86-year-old woman with a history of hypertension who presented sudden disturbances of consciousness and left hemiparesis. Brain magnetic resonance imaging (MRI) revealed diffused hyperintensive changes on T2-weighted images localized subcortically in the white matter of both cerebral hemispheres, corresponding to acute vasogenic edema, causing moderate mass effect. Posterior reversible encephalopathy syndrome was initially diagnosed. After implementation of anti-edema intravenous steroid treatment and hypotensive therapy the symptoms began to retire, till the total regression. The successive hospitalizations took place two and eight months later due to the occurrence of seizures, motor deficits and the development of mild cognitive impairment. Brain MRI revealed progression of the white matter changes and diffused subcortical microhemorrhages. Each time pulse steroid therapy was implemented and the symptoms improved significantly after several days. Chronic oral steroid treatment resulted in the stabilization of neurological status. The long-term observation of clinical symptoms, remission after immunosuppressive therapy and white matter changes with subcortical microhemorrhages in brain MRI leaded to the diagnosis of cerebral amyloid angiopathy-related inflammation. PMID- 29331209 TI - Ethical and end of life considerations for neonates requiring ECMO support. AB - ECMO has proven to be a life-saving intervention for a variety of disease entities with a high rate of survival in the neonatal population. However, ECMO requires clinical teams to engage in many ethical considerations. Even with ongoing improvements in technology and expertise, some patients will not survive a course of ECMO. An unsuccessful course of ECMO can be difficult to accept and cause a great deal of angst. These questions can result in real conflict both within the care team, and between the care team and the family. Herein we explore a range of ethical considerations that may be encountered when caring for a patient on ECMO, with a particular focus on those courses where it appears likely that the patient will not survive. We then consider how a palliative care approach may provide a tool set to help engage the team and family in confronting the difficult decision to discontinue ECMO. PMID- 29331210 TI - To roll the eyes and snap a bite - function, development and evolution of craniofacial muscles. AB - Craniofacial muscles, muscles that move the eyes, control facial expression and allow food uptake and speech, have long been regarded as a variation on the general body muscle scheme. However, evidence has accumulated that the function of head muscles, their developmental anatomy and the underlying regulatory cascades are distinct. This article reviews the key aspects of craniofacial muscle and muscle stem cell formation and discusses how this differs from the trunk programme of myogenesis; we show novel RNAseq data to support this notion. We also trace the origin of head muscle in the chordate ancestors of vertebrates and discuss links with smooth-type muscle in the primitive chordate pharynx. We look out as to how the special properties of head muscle precursor and stem cells, in particular their competence to contribute to the heart, could be exploited in regenerative medicine. PMID- 29331208 TI - WRIST: A WRist Image Segmentation Toolkit for carpal bone delineation from MRI. AB - Segmentation of the carpal bones from 3D imaging modalities, such as magnetic resonance imaging (MRI), is commonly performed for in vivo analysis of wrist morphology, kinematics, and biomechanics. This crucial task is typically carried out manually and is labor intensive, time consuming, subject to high inter- and intra-observer variability, and may result in topologically incorrect surfaces. We present a method, WRist Image Segmentation Toolkit (WRIST), for 3D semi automated, rapid segmentation of the carpal bones of the wrist from MRI. In our method, the boundary of the bones were iteratively found using prior known anatomical constraints and a shape-detection level set. The parameters of the method were optimized using a training dataset of 48 manually segmented carpal bones and evaluated on 112 carpal bones which included both healthy participants without known wrist conditions and participants with thumb basilar osteoarthritis (OA). Manual segmentation by two expert human observers was considered as a reference. On the healthy subject dataset we obtained a Dice overlap of 93.0 +/- 3.8, Jaccard Index of 87.3 +/- 6.2, and a Hausdorff distance of 2.7 +/- 3.4 mm, while on the OA dataset we obtained a Dice overlap of 90.7 +/- 8.6, Jaccard Index of 83.0 +/- 10.6, and a Hausdorff distance of 4.0 +/- 4.4 mm. The short computational time of 20.8 s per bone (or 5.1 s per bone in the parallelized version) and the high agreement with the expert observers gives WRIST the potential to be utilized in musculoskeletal research. PMID- 29331211 TI - Emerging Mechanisms in Alzheimer's Disease and Their Therapeutic Implications. PMID- 29331212 TI - Prion Protein as a Toxic Acceptor of Amyloid-beta Oligomers. AB - The initial report that cellular prion protein (PrPC) mediates toxicity of amyloid-beta species linked to Alzheimer's disease was initially treated with scepticism, but growing evidence supports this claim. That there is a high affinity interaction is now clear, and its molecular basis is being unraveled, while recent studies have identified possible downstream toxic mechanisms. Determination of the clinical significance of such interactions between PrPC and disease-associated amyloid-beta species will require experimental medicine studies in humans. Trials of compounds that inhibit PrP-dependent amyloid-beta toxicity are commencing in humans, and although it is clear that only a fraction of Alzheimer's disease toxicity could be governed by PrPC, a partial, but still therapeutically useful, role in human disease may soon be testable. PMID- 29331213 TI - [Methodology for the development of policy brief in public health]. AB - A policy brief is a document that summarizes research to inform policy. In a brief and succinct way, it defines a policy problem, presents a synthesis of relevant evidence, identifies possible courses of action and makes recommendations or key points. The objective of this note is to describe the methodology used to produce a policy brief for communicating public health research. This note is based on the model presented by Eugene Bardach in addition to the authors' own experiences. We describe six steps: 1) identifying the audience; 2) defining the problem; 3) gathering information and evidence; 4) consideration of policy alternatives; 5) projecting results and designing recommendations; and 6) telling the story. We make a case for the use of policy briefs as a part of an overall communications strategy for research that aims to bring together research teams and stakeholders. PMID- 29331214 TI - The Stockholm-3 Model for Prostate Cancer Detection: Algorithm Update, Biomarker Contribution, and Reflex Test Potential. AB - BACKGROUND: It has been shown that the Stockholm-3 model (S3M) outperforms prostate-specific antigen (PSA) as a screening tool for prostate cancer. OBJECTIVE: To update the S3M, to give a detailed account of the value of each predictor in the S3M, and to evaluate the S3M as a reflex test for men with PSA >=3ng/ml. DESIGN, SETTING, AND PARTICIPANTS: During 2012-2015, the Stockholm-3 study evaluated the S3M relative to PSA as tests for Gleason score >=7 prostate cancers among men aged 50-69 yr. The participants (n=59 159) underwent both tests, and biopsy was recommended if at least one was positive. A total of 5073 men had a biopsy because of elevated PSA (>=3ng/ml). OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Logistic regression was used to update the S3M: intact PSA was removed, HOXB13 was included, and the model was fitted to data from the Stockholm-3 training and validation cohorts. To compare S3M with PSA, we fixed the sensitivity for detection of high-grade cancer and evaluated the performance as the number of biopsies needed to achieve that sensitivity for each test. RESULTS AND LIMITATIONS: The updated S3M slightly improved the area under the receiver operating characteristic curve compared to previously published results (0.75 vs 0.74). When used as a reflex test for men with PSA >=3ng/ml, S3M reduced the number of biopsies needed by 34% compared to the use of PSA alone, with equal sensitivity. A limitation is the ethnically homogeneous population. CONCLUSIONS: A major problem with PSA screening-too many unnecessary biopsies-can be mitigated if S3M is used as a reflex test. PATIENT SUMMARY: To find aggressive prostate cancer with the minimum number of negative biopsies and detection of clinically insignificant cancers, we evaluated the use of a personalized diagnostic prediction model as a second test for men with a positive prostate-specific antigen (PSA) test. We found that this two-step approach could reduce prostate biopsies by a third compared to using PSA alone. PMID- 29331215 TI - Re: Zhangqun Ye, Guohua Zeng, Huan Yang, et al. Efficacy and Safety of Tamsulosin in Medical Expulsive Therapy for Distal Ureteral Stones with Renal Colic: A Multicenter, Randomized, Double-blind, Placebo-controlled Trial. Eur Urol 2018;73:385-91. PMID- 29331216 TI - Chemoimmunotherapy in Metastatic Urothelial Carcinoma. PMID- 29331217 TI - The cost of perioperative complications following pancreaticoduodenectomy: A systematic review. AB - BACKGROUND/OBJECTIVES: Pancreaticoduodenectomy (PD), also known as a Whipple procedure, is commonly performed for a variety of benign and malignant tumours, including of the pancreatic head and surrounding structures. PD is associated with low mortality but high morbidity and costs. Our objective was to describe the financial burden of complications following pancreaticoduodenectomy. METHODS: We searched for articles using the MEDLINE, EMBASE, Cochrane and EconLit databases from the year 2000. Additional studies were identified by searching bibliographies. We included studies reporting on hospital cost or charge of in hospital complications during the index PD admission. Studies including other surgeries but specifically reporting inpatient complication costs of PD were also included. Any type of PD was included. Data was collected using a data extraction table and a narrative synthesis was performed. RESULTS: We identified 15 eligible articles. All included articles were retrospective studies. Acceptable evidence for increased cost due to the presence and grade of complication was found. Strong evidence demonstrated the high rate of complications. Weak evidence linked complications with specific constituents of hospital cost. Complication grade was robustly linked with increased length of stay. Not enough evidence was found to demonstrate a link between PD complications and mortality or readmissions. LIMITATIONS: Included studies were heterogeneous in setting, methodology, costing data, and grading systems. CONCLUSIONS: The presence and grade of PD complications increase hospital cost across diverse settings. The costing methodology should be transparent and complication grading systems should be consistent in future studies. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO 2017:CRD42017058427. PMID- 29331218 TI - Knowing when to stop: Aberrant precision and evidence accumulation in schizophrenia. AB - Predictive coding and active inference formulations of the dysconnection hypothesis suggest that subjects with schizophrenia (SZ) hold unduly precise prior beliefs to compensate for a failure of sensory attenuation. This implies that SZ subjects should both initiate responses prematurely during evidence accumulation tasks and fail to inhibit their responses at long stop-signal delays. SZ and healthy control subjects were asked to report the timing of billiards-ball collisions and were occasionally required to withhold their responses. SZ subjects showed larger temporal estimation errors, which were associated with premature responses and decreased response inhibition. To account for these effects, we used hierarchical (Bayesian) drift-diffusion models (HDDM) and model selection procedures to adjudicate among four hypotheses. HDDM revealed that the precision of prior beliefs (i.e., starting point) rather than increased sensory precision (i.e., drift rate) drove premature responses and impaired response inhibition in patients with SZ. From the perspective of active inference, we suggest that premature predictions in SZ are responses that, heuristically, are traded off against accuracy to ensure action execution. On the basis of previous work, we suggest that the right insular cortex might mediate this trade-off. PMID- 29331219 TI - Polycyclic aromatic hydrocarbons in soils and lichen from the western Tibetan Plateau: Concentration profiles, distribution and its influencing factors. AB - The Tibetan Plateau (TP) is a huge area and rarely affected by human activity, and is regarded as one of the most remote regions on the earth. Many studies about the long-range atmospheric transport (LRAT) of semi-volatile organic compounds (SVOCs) were conducted in southern and central TP. However, there are very limited studies focused on PAHs in the western TP and the concentrations profiles, distribution and its controlling factors in this area remains unclear. Thus, to explore this knowledge gap, 37 surface soil samples and 23 lichen samples were collected and analyzed for PAHs. The total concentration of 16 US EPA's priority PAHs (?16PAHs) in western TP ranges 14.4-59.5ng/g and 38.0-133ng/g dry weight (dw) with a mean value of 30.8 and 84.6ng/g dw in soil and lichen, respectively, which is lower than the concentrations in most remote areas worldwide. In the western TP, low molecular weight PAHs (2-3 rings) are dominant (occupied 77.4% and 87.9% on average in soil and lichen, respectively), implying a significant contribution of LRAT in this area. The significant linear correlations (R2 = 0.372-0.627, p < 0.05) between longitude and soil concentration suggest a strong impact of the westerly wind on the distribution of PAHs in soil. In addition, the concentration ratio of lichen/soil (L/S) was found to linearly increase with the increasing log KOA of individual PAH, suggesting lichen has a strong ability in filtering more lipophilic airborne pollutants in western TP. PMID- 29331220 TI - [Impact of chronic illness on hospital nursing workloads]. AB - OBJECTIVES: To evaluate the short-term impact of chronic illness in hospital units and to establish a method that allows nursing workloads to be adapted according to the care needs of patients. METHODS: A descriptive study of the evolution of workloads of nursing staff associated with the care needs of patients between 1 July 2014 and 30 June 2016, in a county hospital. The care needs of the patients were assessed daily using an adaptation of the Montesinos scheme. The estimated times of nursing care and auxiliary nursing required by the patients, based on their level of dependence for time distribution, were based on the standards and recommendations of the Ministry of Health, Social Services and Equality. RESULTS: During the study period, there was a change in the patient care needs, with no increase in activity, which resulted in an increase in the nursing staffing needs of 1,396 theoretical hours per year. This increase implies an increase in the workforce of 5 nurses in the second period. CONCLUSIONS: In the study period, the needs for direct nursing care increased by 7%, this increase is not related to the increase in activity, but to the level of dependency of the patients with chronic diseases. This increase occurred in both medical and surgical units. PMID- 29331221 TI - Mechanisms of changes in functional mitral regurgitation by preload alterations. AB - BACKGROUND: This study aimed to investigate the mechanisms of acute changes in functional mitral regurgitation (FMR) by preload alterations. METHODS: Twenty-two consecutive patients with left ventricular ejection fraction <40% and at least mild FMR underwent transthoracic echocardiography. Passive leg lifting and sublingual administration of nitroglycerin were performed to alter preload. Mitral regurgitant volume (MRV) was assessed using the Doppler method. RESULTS: MRV changed in parallel with preload alterations. MRV correlated better with tenting height (TH) than with mitral annular area (MAA) at baseline, whereas the difference in the correlate coefficients was not statistically significant (R=0.69 and R=0.40, respectively; p=0.19). On the other hand, changes in MRV between each sequential stage correlated better with those in MAA than with those in TH (R=0.68 and R=0.44, respectively; p=0.043). Multiple regression analysis revealed that baseline TH was the independent determinant of baseline MRV (R=0.69, p=0.0004), whereas changes in MAA with preload alteration were the independent determinant of the changes in MRV (R=0.68, p<0.0001). Changes in left atrial (LA) volume were the independent determinant of the changes in MAA (R=0.30, p=0.0063). CONCLUSIONS: Acute changes in FMR with preload alterations resulted from the transverse changes in MAA rather than the longitudinal changes in tethering-tenting of mitral geometry, and mitral annular deformation was determined by changes in LA volume. Preload reduction might help heart failure treatment through the reduction in FMR resulting from the decrease in LA and mitral annular size. PMID- 29331222 TI - On-tubing fluorescence measurements of the band broadening of contemporary injectors in ultra-high performance liquid chromatography. AB - We report on a detailed study of the injection contribution to band broadening in contemporary UHPLC-instruments, using either flow-through needle or fixed loop injection (full loop). Using on-tubing fluorescence measurements at the outlet of the injector valve, very localized and undisturbed measurements were obtained. Varying both the flow rate and the injected volume allowed to split the injection variance (sigmaV2,inj) in a volumetric component (related to the amount injected) and a hydrodynamic component (related to the flow rate). For the flow-through needle injector and for the small injection volumes (<2 MUL) typically used in UHPLC, it was found that the volumetric contribution (i.e. the part of sigmaV2,inj, that increases with increasing injection volume) is given by a value of sigmaV2,inj,vol = 0.8 to 1.Vinj2 rather than by the value of 0.125 to 0.2.Vinj2 that is normally assumed in literature. For the hydrodynamic contribution to sigmaV2,inj, (i..e, the part which remains present even for very small injection volumes), a clear increase in dispersion with flow rate is found, reaching a plateau around 0.8ml/min of 0.6 MUL2 or 1.2 MUL2 for the 75 MUm and 120 MUm needle seat capillaries respectively. The difference between both shows the clear advantage of using a low dispersion 75 MUm injection needle seat capillary. For a loop-type injector operated in a full-loop mode, the increase in peak variance with the injection volume is much less pronounced, leading to a total injector variance given by sigmaV2,inj = 0.34 MUL2 + 0.12.Vinj2 over the entire range of investigated injection volumes of 1.1 MUL up to 4.5 MUL when using 120 MUm or narrower ID loops. This expression was nearly completely independent of the flow rate. For larger ID sample loops, a clear increase of peak variance with flow rate at fixed injection volume was observed (sigmaV2,inj increases with 20% for a 170 MUm ID loop and with 70% for a 220 MUm ID loop from 0.3 to 1 ml/min). PMID- 29331223 TI - Structure-based design and application of a nucleotide coenzyme mimetic ligand: Application to the affinity purification of nucleotide dependent enzymes. AB - In the present study, a structure-based approach was exploited for the in silico design of a nucleotide coenzyme mimetic ligand. The enzyme formate dehydrogenase (FDH) was employed as a model in our study. The biomimetic ligand was designed and synthesized based on a tryptamine/3-aminopropylphosphonic acid bi-substituted 1,3,5-triazine (Trz) scaffold (Tra-Trz-3APP), which potentially mimics the interactions of NAD+-FDH complex. Molecular docking studies of the biomimetic ligand predicted that it can occupy the same binding site as the natural coenzyme. Molecular modeling and dynamics simulations revealed that the ligand binds in an energetically more stable pose in the FDH binding site, as it adopts a more twisty conformation, compared to the natural coenzyme. Study of the FDH/Tra-Trz-3APP-Sepharose interaction, through adsorption equilibrium studies and site-directed mutagenesis of selected FDH coenzyme binding residues, provided additional experimental evidences of the specificity of the interaction. The Tra Trz-3APP-Sepharose biomimetic adsorbent was further evaluated towards a range of different dehydrogenases and was exploited for the development of a single-step purification protocol for FDH. The protocol afforded enzyme with high yield and purity, suitable for analytical and industrial purposes. PMID- 29331224 TI - Centrifugal partition chromatography enables selective enrichment of trimeric and tetrameric proanthocyanidins for biomaterial development. AB - Proanthocyanidins (PACs) find wide applications for human use including food, cosmetics, dietary supplements, and pharmaceuticals. The chemical complexity associated with PACs has triggered the development of various chromatographic techniques, with countercurrent separation (CCS) gaining in popularity. This study applied the recently developed DESIGNER (Depletion and Enrichment of Select Ingredients Generating Normalized Extract Resources) approach for the selective enrichment of trimeric and tetrameric PACs using centrifugal partition chromatography (CPC). This CPC method aims at developing PAC based biomaterials, particularly for their application in restoring and repairing dental hard tissue. A general separation scheme beginning with the depletion of polymeric PACs, followed by the removal of monomeric flavan-3-ols and a final enrichment step produced PAC trimer and tetramer enriched fractions. A successful application of this separation scheme is demonstrated for four polyphenol rich plant sources: grape seeds, pine bark, cinnamon bark, and cocoa seeds. Minor modifications to the generic DESIGNER CCS method were sufficient to accommodate the varying chemical complexities of the individual source materials. The step-wise enrichment of PAC trimers and tetramers was monitored using normal phase TLC and Diol-HPLC-UV analyses. CPC proved to be a reliable tool for the selective enrichment of medium size oligomeric PACs (OPACs). This method plays a key role in the development of dental biomaterials considering its reliability and reproducibility, as well as its scale-up capabilities for possible larger-scale manufacturing. PMID- 29331225 TI - Influence of pressure on the retention of resorcinarene-based cavitands. AB - The thermodynamics of the retention mechanism of resorcinarene-based cavitands in RPLC as well as the nature of the binding sites have been studied recently. In the present study, the influence of pressure on the retention of the cyclic tetramers on alkylsilyl and polar-embedded C8 and C18 stationary phases is investigated using aqueous methanol mobile phase. The pressure effect for cavity shaped molecules has been scarcely studied so far. We observed that the retention factors of the analytes increased with the increase of the average column pressure (1-400 bar) when using restricting capillary tubes. The calculated molar volume changes were negative, between -DeltaVm = 5-19 mL/mol on all types of stationary phases. Comparing the different stationary phases, we found that the molar volume changes for both the apolar and more polar analytes were twice larger on the Hypersil BDS (base deactivated silica) than on the XTerra columns and they were independent of the length of the alkyl chains of the stationary phases. PMID- 29331226 TI - A low complexity minimum variance beamformer for ultrasound imaging using dominant mode rejection. AB - In recent years, high resolution adaptive minimum variance-based beamformers have been successfully applied to medical ultrasound imaging to improve its resolution and contrast, simultaneously. However, these improvements come at the cost of much more computational complexity in comparison to the non-adaptive delay-and sum beamformer. The computational overhead mainly results from the L*L covariance matrix inversion needed for computation of the adaptive weights, the complexity of which is cubic with the subarray size, O(L3). In medical ultrasound imaging with focusing on the imaging point, we have a limited number of dominant modes and there is no need for the full matrix inversion. Based on this idea, we have investigated the application of the dominant mode rejection (DMR) adaptive beamformer for medical ultrasound imaging, which uses only some largest dominant modes to approximate the covariance matrix in dominant subspace. We show, using simulated and experimental data, that this subspace dimension can be selected as low as two resulting in significant computational complexity reduction while still achieving performance comparable to that of the minimum variance beamformer. PMID- 29331229 TI - Hominin raw material procurement in the Oldowan-Acheulean transition at Olduvai Gorge. AB - The lithic assemblages at the Oldowan-Acheulean transition in Bed II of Olduvai Gorge, Tanzania, represent a wide variety of raw materials reflecting both the diversity of volcanic, metamorphic, and sedimentary source materials available in the Olduvai basin and surroundings and the preferences of the tool-makers. A geochemical and petrographic systematic analysis of lava-derived archaeological stone tools, combined with textural and mineralogical characterization of quartzite, chert, and other metamorphic and sedimentary raw materials from two Middle and Upper Bed II sites, has enabled us to produce a comprehensive dataset and characterization of the rocks employed by Olduvai hominins, which is used here to establish a referential framework for future studies on Early Stone Age raw material provenancing. The use of rounded blanks for most lava-derived artifacts demonstrates that hominins were accessing lava in local stream channels. Most quartzite artifacts appear to derive from angular blocks, likely acquired at the source (predominantly Naibor Soit hill), though some do appear to be manufactured from stream-transported quartzite blanks. Raw material composition of the EF-HR assemblage indicates that Acheulean hominins selected high-quality lavas for the production of Large Cutting Tools. On the other hand, the HWK EE lithic assemblage suggests that raw material selectivity was not entirely based on rock texture, and other factors, such as blank shape and availability of natural angles suitable for flaking, played a major role in Oldowan reduction sequences. PMID- 29331230 TI - Lower limb articular scaling and body mass estimation in Pliocene and Pleistocene hominins. AB - Previous attempts to estimate body mass in pre-Holocene hominins have relied on prediction equations derived from relatively limited extant samples. Here we derive new equations to predict body mass from femoral head breadth and proximal tibial plateau breadth based on a large and diverse sample of modern humans (avoiding the problems associated with using diaphyseal dimensions and/or cadaveric reference samples). In addition, an adjustment for the relatively small femoral heads of non-Homo taxa is developed based on observed differences in hip to knee joint scaling. Body mass is then estimated for 214 terminal Miocene through Pleistocene hominin specimens. Mean body masses for non-Homo taxa range between 39 and 49 kg (39-45 kg if sex-specific means are averaged), with no consistent temporal trend (6-1.85 Ma). Mean body mass increases in early Homo (2.04-1.77 Ma) to 55-59 kg, and then again dramatically in Homo erectus and later archaic middle Pleistocene Homo, to about 70 kg. The same average body mass is maintained in late Pleistocene archaic Homo and early anatomically modern humans through the early/middle Upper Paleolithic (0.024 Ma), only declining in the late Upper Paleolithic, with regional variation. Sexual dimorphism in body mass is greatest in Australopithecus afarensis (log[male/female] = 1.54), declines in Australopithecus africanus and Paranthropus robustus (log ratio 1.36), and then again in early Homo and middle and late Pleistocene archaic Homo (log ratio 1.20 1.27), although it remains somewhat elevated above that of living and middle/late Pleistocene anatomically modern humans (log ratio about 1.15). PMID- 29331231 TI - Successful catheter ablation of atrioventricular reentrant tachycardia with left lateral bypass tract in a patient with unroofed coronary sinus atrial septal defect. PMID- 29331227 TI - The impact of technology on the changing practice of lung SBRT. AB - Stereotactic body radiotherapy (SBRT) for lung tumours has been gaining wide acceptance in lung cancer. Here, we review the technological evolution of SBRT delivery in lung cancer, from the first treatments using the stereotactic body frame in the 1990's to modern developments in image guidance and motion management. Finally, we discuss the impact of current technological approaches on the requirements for quality assurance as well as future technological developments. PMID- 29331232 TI - Incorporating behavioral and sensory context into spectro-temporal models of auditory encoding. AB - For several decades, auditory neuroscientists have used spectro-temporal encoding models to understand how neurons in the auditory system represent sound. Derived from early applications of systems identification tools to the auditory periphery, the spectro-temporal receptive field (STRF) and more sophisticated variants have emerged as an efficient means of characterizing representation throughout the auditory system. Most of these encoding models describe neurons as static sensory filters. However, auditory neural coding is not static. Sensory context, reflecting the acoustic environment, and behavioral context, reflecting the internal state of the listener, can both influence sound-evoked activity, particularly in central auditory areas. This review explores recent efforts to integrate context into spectro-temporal encoding models. It begins with a brief tutorial on the basics of estimating and interpreting STRFs. Then it describes three recent studies that have characterized contextual effects on STRFs, emerging over a range of timescales, from many minutes to tens of milliseconds. An important theme of this work is not simply that context influences auditory coding, but also that contextual effects span a large continuum of internal states. The added complexity of these context-dependent models introduces new experimental and theoretical challenges that must be addressed in order to be used effectively. Several new methodological advances promise to address these limitations and allow the development of more comprehensive context-dependent models in the future. PMID- 29331233 TI - A biophysical modelling platform of the cochlear nucleus and other auditory circuits: From channels to networks. AB - Models of the auditory brainstem have been an invaluable tool for testing hypotheses about auditory information processing and for highlighting the most important gaps in the experimental literature. Due to the complexity of the auditory brainstem, and indeed most brain circuits, the dynamic behavior of the system may be difficult to predict without a detailed, biologically realistic computational model. Despite the sensitivity of models to their exact construction and parameters, most prior models of the cochlear nucleus have incorporated only a small subset of the known biological properties. This confounds the interpretation of modelling results and also limits the potential future uses of these models, which require a large effort to develop. To address these issues, we have developed a general purpose, biophysically detailed model of the cochlear nucleus for use both in testing hypotheses about cochlear nucleus function and also as an input to models of downstream auditory nuclei. The model implements conductance-based Hodgkin-Huxley representations of cells using a Python-based interface to the NEURON simulator. Our model incorporates most of the quantitatively characterized intrinsic cell properties, synaptic properties, and connectivity available in the literature, and also aims to reproduce the known response properties of the canonical cochlear nucleus cell types. Although we currently lack the empirical data to completely constrain this model, our intent is for the model to continue to incorporate new experimental results as they become available. PMID- 29331235 TI - Antimullerian hormone as a predictor of live birth following assisted reproduction: an analysis of 85,062 fresh and thawed cycles from the Society for Assisted Reproductive Technology Clinic Outcome Reporting System database for 2012-2013. AB - OBJECTIVE: To determine if serum antimullerian hormone (AMH) is associated with and/or predictive of live birth assisted reproductive technology (ART) outcomes. DESIGN: Retrospective analysis of Society for Assisted Reproductive Technology Clinic Outcome Reporting System database from 2012 to 2013. SETTING: Not applicable. PATIENT(S): A total of 69,336 (81.8%) fresh and 15,458 (18.2%) frozen embryo transfer (FET) cycles with AMH values. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Live birth. RESULT(S): A total of 85,062 out of 259,499 (32.7%) fresh and frozen-thawed autologous non-preimplantation genetic diagnosis cycles had AMH reported for cycles over this 2-year period. Of those, 70,565 cycles which had embryo transfers were included in the analysis. Serum AMH was significantly associated with live birth outcome per transfer in both fresh and FET cycles. Multiple logistic regression demonstrated that AMH is an independent predictor of live birth in fresh transfer cycles and FET cycles when controlling for age, body mass index, race, day of transfer, and number of embryos transferred. Receiver operating characteristic (ROC) curves demonstrated that the areas under the curve (AUC) for AMH as predictors of live birth in fresh cycles and thawed cycles were 0.631 and 0.540, respectively, suggesting that AMH alone is a weak independent predictor of live birth after ART. Similar ROC curves were obtained also when elective single-embryo transfer (eSET) cycles were analyzed separately in either fresh (AUC 0.655) or FET (AUC 0.533) cycles, although AMH was not found to be an independent predictor in eSET cycles. CONCLUSION(S): AMH is a poor independent predictor of live birth outcome in either fresh or frozen embryo transfer for both eSET and non-SET transfers. PMID- 29331234 TI - Metabolic syndrome, hypertension, and hyperlipidemia in mothers, fathers, sisters, and brothers of women with polycystic ovary syndrome: a systematic review and meta-analysis. AB - OBJECTIVE: To provide an evidence-based assessment of metabolic syndrome, hypertension, and hyperlipidemia in first-degree relatives of women with polycystic ovary syndrome (PCOS). DESIGN: Systematic review and meta-analysis. SETTING: Not applicable. PATIENT(S): Mothers, fathers, sisters, and brothers of women with and without PCOS. INTERVENTION(S): An electronic-based search with the use of PubMed from 1960 to June 2015 and cross-checked references of relevant articles. MAIN OUTCOME MEASURE(S): Metabolic syndrome, hypertension and dyslipidemia, and surrogate markers, including systolic blood pressure (BP), diastolic BP, total cholesterol, low-density lipoprotein cholesterol, high density lipoprotein cholesterol, and triglycerides. RESULT(S): Fourteen of 3,346 studies were included in the meta-analysis. Prevalence of the following was significantly increased in relatives of women with PCOS: metabolic syndrome (risk ratio [RR] 1.78 [95% confidence interval 1.37, 2.30] in mothers, 1.43 [1.12, 1.81] in fathers, and 1.50 [1.12, 2.00] in sisters), hypertension (RR 1.93 [1.58, 2.35] in fathers, 2.92 [1.92, 4.45] in sisters), and dyslipidemia (RR 3.86 [2.54, 5.85] in brothers and 1.29 [1.11, 1.50] in fathers). Moreover, systolic BP (mothers, sisters, and brothers), total cholesterol (mothers and sisters), low density lipoprotein cholesterol (sisters), and triglycerides (mothers and sisters) were significantly higher in first-degree relatives of PCOS probands than in controls. CONCLUSION(S): Our results show evidence of clustering for metabolic syndrome, hypertension, and dyslipidemia in mothers, fathers, sisters, and brothers of women with PCOS. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO 2016 CRD42016048557. PMID- 29331236 TI - Pregnancy-related complications and perinatal outcomes resulting from transfer of cryopreserved versus fresh embryos in vitro fertilization: a meta-analysis. AB - OBJECTIVE: To provide an updated comparison of pregnancy-related complications and adverse perinatal outcomes of pregnancies conceived after frozen embryo transfer (FET) versus fresh embryo transfer (fresh ET). DESIGN: Meta-analysis. SETTING: University. PATIENT(S): Pregnancies resulting from FET versus fresh ET. INTERVENTIONS(S): Pubmed, Embase, Cochrane Library, Google Scholar, and Chinese databases, including the China National Knowledge Infrastructure Database, Wanfang, and Chinese Scientific Journals Full-Text Database were searched by two independent reviewers from January 1980 to September 2017. The results were expressed as risk ratios with 95% confidence intervals. MAIN OUTCOME MEASURE(S): Pregnancy-related complications and perinatal outcomes. RESULT(S): Our search retrieved 1,397 articles, of which 31 studies were included. Pregnancies resulting from FET were associated with lower relative risks of placenta previa, placental abruption, low birth weight, very low birth weight, very preterm birth, small for gestational age, and perinatal mortality compared with fresh ET. Pregnancies occurring from FET were associated with increased risks of pregnancy induced hypertension, postpartum hemorrhage, and large for gestational age compared with fresh ET. The risks of gestational diabetes mellitus, preterm premature rupture of the membranes, and preterm birth (PTB) showed no differences between the two groups. CONCLUSION(S): Our analysis demonstrated that FET results in lower risks of placenta previa, placental abruption, low birth weight, very low birth weight, very preterm birth, small for gestational age, and perinatal mortality than fresh ET, some differences that are attributed to the increased risks of pregnancy-induced hypertension, large for gestational age, and postpartum hemorrhage. Although cryotechnology keeps improving, for comprehensive consideration, individual approaches remain appropriate to balance the options of FET or fresh ET at present. PMID- 29331237 TI - Time-lapse algorithms and morphological selection of day-5 embryos for transfer: a preclinical validation study. AB - OBJECTIVE: To determine the agreement between published time-lapse algorithms in selecting the best day-5 embryo for transfer, as well as the agreement between these algorithms and embryologists. DESIGN: Prospective study. SETTING: Private in vitro fertilization center. PATIENT(S): Four hundred and twenty-eight embryos from 100 cycles cultured in the EmbryoScope. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Interalgorithm agreement as assessed by the Fleiss kappa coefficient. RESULT(S): Of seven published algorithms analyzed in this study, only one of the 18 possible pairs showed very good agreement (kappa = 0.867); one pair showed good agreement (kappa = 0.725), four pairs showed fair agreement (kappa = 0.226 0.334), and the remaining 12 pairs showed poor agreement (kappa = 0.008-0.149). Even in the best-case scenario, the majority of algorithms showed poor to moderate kappa scores (kappa = 0.337-0.722) for the assessment of agreement between the embryo(s) selected as "best" by the algorithms and the embryo that was chosen by the majority (>5) of embryologists, as well as with the embryo that was actually selected in the laboratory on the day of transfer (kappa = 0.315 0.802). CONCLUSION(S): The results of this study raise concerns as to whether the tested algorithms are applicable in different clinical settings, emphasizing the need for proper external validation before clinical use. PMID- 29331238 TI - In vitro fertilization twins: acceptable when desired, or iatrogenic complication preventable through elective single embryo transfer? PMID- 29331239 TI - Sperm donor anonymity: a concept rendered obsolete by modern technology. PMID- 29331240 TI - A new predictive parameter for embryo transfer success: a path forward is needed to implement it in technique training. PMID- 29331241 TI - Evaluation of MALDI-TOF mass spectrometry for the identification of bacteria growing as biofilms. AB - We evaluated MALDI-TOF mass spectrometry to identify bacteria from biofilms. We compared three sample preparation procedures on biofilms grown in vitro. The extended direct transfer method was able to identify 13 isolates out of 18 (72%) at the species level and 15 out of 18 (83%) at the genus level. PMID- 29331242 TI - Species-specific response to sulfide intrusion in native and exotic Mediterranean seagrasses under stress. AB - We explored the sulfur dynamics and the relationships between sediment sulfur and nutrient pools, seagrass structural and physiological variables and sulfide intrusion in native (Posidonia oceanica, Cymodocea nodosa) and exotic (Halophila stipulacea) Mediterranean seagrasses at six sites affected by cumulative anthropogenic pressures to understand the factors controlling sulfide intrusion in seagrass. Sensitive indicators of seagrass stress (leaf TN, delta15N, TS, Fsulfide) were increased at several sites, implying that seagrasses are under pressure. Sulfide intrusion was not related to sediment TOC but it was negatively related to shoot size and below-ground biomass. Sulfide intrusion in seagrass tissue was high in P. oceanica (12-17%) and considerably higher in C. nodosa (27 35%). Intrusion was particularly high in H. stipulacea (30-50%), suggesting that its possible biogeographical expansion due to warming of the Mediterranean may result in accumulation of sulfides in the sediments and hypoxia/anoxia with further implications in ecosystem function. PMID- 29331243 TI - Tolerance and potential for adaptation of a Baltic Sea rockweed under predicted climate change conditions. AB - Climate change is threating species' persistence worldwide. To predict species responses to climate change we need information not just on their environmental tolerance but also on its adaptive potential. We tested how the foundation species of rocky littoral habitats, Fucus vesiculosus, responds to combined hyposalinity and warming projected to the Baltic Sea by 2070-2099. We quantified responses of replicated populations originating from the entrance, central, and marginal Baltic regions. Using replicated individuals, we tested for the presence of within-population tolerance variation. Future conditions hampered growth and survival of the central and marginal populations whereas the entrance populations fared well. Further, both the among- and within-population variation in responses to climate change indicated existence of genetic variation in tolerance. Such standing genetic variation provides the raw material necessary for adaptation to a changing environment, which may eventually ensure the persistence of the species in the inner Baltic Sea. PMID- 29331244 TI - Perception of faunal circadian rhythms depends on sampling technique. AB - Ecologists aim at disentangling how species vary in abundance through spatial and temporal scales, using a range of sampling techniques. Here, we investigated the circadian rhythm of seagrass-associated decapod crustaceans through three sampling techniques. Specifically, we compared the abundance, biomass and structure of seagrass-associated decapod assemblages between the day and night using a hand net, an airlift pump and baited traps. At night, the hand-net consistently collected a larger total abundance and biomass of decapods, what resulted in significant diel differences, which were detected for the total biomass, but not for the total abundance, when decapods were sampled through an airlift pump. Traps, however, collected a larger total abundance, but not total biomass, of decapods during the night. In summary, our perception of faunal diel rhythms is notably influence by the way organisms are sampled. PMID- 29331245 TI - Outsmart HPV: Acceptability and short-term effects of a web-based HPV vaccination intervention for young adult gay and bisexual men. AB - BACKGROUND: Effective interventions to promote human papillomavirus (HPV) vaccination are needed, particularly among populations at increased risk of HPV related disease. We developed and pilot tested a web-based intervention, Outsmart HPV, to promote HPV vaccination among young gay and bisexual men (YGBM). METHODS: In 2016, we recruited a national sample (n = 150) of YGBM ages 18-25 in the United States who had not received any doses of HPV vaccine. Participants were randomized to receive either standard HPV vaccination information (control) or population-targeted, individually-tailored content (Outsmart HPV intervention). We assessed between group differences in HPV vaccination attitudes and beliefs immediately following the intervention using multiple linear regression. RESULTS: There were no differences in HPV vaccination attitudes, beliefs and intentions between groups at baseline. Compared to participants in the control group, intervention participants reported: greater perception that men who have sex with men are at higher risk for anal cancer relative to other men (b = 0.34); greater HPV vaccination self-efficacy (b = 0.15); and fewer perceived harms of HPV vaccine (b = -0.34) on posttest surveys (all p < .05). Overall, intervention participants reported high levels of acceptability and satisfaction with the Outsmart HPV intervention (all > 4.4 on a 5-point scale). CONCLUSIONS: Findings from this study provide preliminary support for a brief, tailored web-based intervention in improving HPV vaccination attitudes and beliefs among YGBM. An important next step is to determine the effects of Outsmart HPV on HPV vaccine uptake. CLINICAL TRIALS REGISTRATION: ClinicalTrials.gov identifier NCT02835755. PMID- 29331246 TI - Estimation of expected dengue seroprevalence from passive epidemiological surveillance systems in selected areas of Argentina: A proxy to evaluate the applicability of dengue vaccination. AB - BACKGROUND: Current recommendations about dengue vaccination by the World Health Organization depend on seroprevalence levels and serological status in populations and individuals. However, seroprevalence estimation may be difficult due to a diversity of factors. Thus, estimation through models using data from epidemiological surveillance systems could be an alternative procedure to achieve this goal. OBJECTIVE: To estimate the expected dengue seroprevalence in children of selected areas in Argentina, using a simple model based on data from passive epidemiological surveillance systems. METHODS: A Markov model using a simulated cohort of individuals from age 0 to 9 years was developed. Parameters regarding the reported annual incidence of dengue, proportion of inapparent cases, and expansion factors for outpatient and hospitalized cases were considered as transition probabilities. The proportion of immune population at 9 years of age was taken as a proxy of the expected seroprevalence, considering this age as targeted for vaccination. The model was used to evaluate the expected seroprevalence in Misiones and Salta provinces and in Buenos Aires city, three settings showing different climatic favorability for dengue. RESULTS: The estimates of the seroprevalence for the group of 9-year-old children for Misiones was 79% (95%CI:46-100%), and for Salta 22% (95%CI:14-30%), both located in northeastern and northwestern Argentina, respectively. Buenos Aires city, from central Argentina, showed a likely seroprevalence of 7% (95%CI: 3-11%). According to the deterministic sensitivity analyses, the parameter showing the highest influence on these results was the probability of inapparent cases. CONCLUSIONS: This model allowed the estimation of dengue seroprevalence in settings where this information is not available. Particularly for Misiones, the expected seroprevalence was higher than 70% in a wide range of scenarios, thus in this province a vaccination strategy directed to seropositive children of >9 years should be analyzed, including further considerations as safety, cost effectiveness, and budget impact. PMID- 29331247 TI - A biopsy of Breast Cancer mobile applications: state of the practice review. AB - BACKGROUND: Breast cancer is the most common cancer in women. The use of mobile software applications for health and wellbeing promotion has grown exponentially in recent years. We systematically reviewed the breast cancer apps available in today's leading smartphone application stores and characterized them based on their features, evidence base and target audiences. METHODS: A cross-sectional study was performed to characterize breast cancer apps from the two major smartphone app stores (iOS and Android). Apps that matched the keywords "breast cancer" were identified and data was extracted using a structured form. Reviewers independently evaluated the eligibility and independently classified the apps. RESULTS: A total of 1473 apps were a match. After removing duplicates and applying the selection criteria only 599 apps remained. Inter-rater reliability was determined using Fleiss-Cohen's Kappa. The majority of apps were free 471 (78.63%). The most common type of application was Disease and Treatment information apps (29.22%), Disease Management (19.03%) and Awareness Raising apps (15.03%). Close to 1 out of 10 apps dealt with alternative or homeopathic medicine. The majority of the apps were intended for patients (75.79%). Only one quarter of all apps (24.54%) had a disclaimer about usage and less than one fifth (19.70%) mentioned references or source material. Gamification specialists determined that 19.36% contained gamification elements. CONCLUSIONS: This study analyzed a large number of breast cancer-focused apps available to consumers. There has been a steady increase of breast cancer apps over the years. The breast cancer app ecosystem largely consists of start-ups and entrepreneurs. Evidence base seems to be lacking in these apps and it would seem essential that expert medical personnel be involved in the creation of medical apps. PMID- 29331249 TI - Digital health: A science at crossroads. PMID- 29331248 TI - Usability evaluation of a commercial inpatient portal. AB - OBJECTIVES: Patient portals designed for inpatients have potential to increase patient engagement. However, little is known about how patients use inpatient portals. To address this gap, we aimed to understand how users 1) interact with, 2) learn to use, and 3) communicate with their providers through an inpatient portal. MATERIALS AND METHODS: We conducted a usability evaluation using think aloud protocol to study user interactions with a commercially available inpatient portal - MyChart Bedside (MCB). Study participants (n=19) were given a tablet that had MCB installed. They explored MCB and completed eight assigned tasks. Each session's recordings were coded and analyzed. We analyzed task completion, errors, and user feedback. We categorized errors into operational errors, system errors, and tablet-related errors, and indicated their violations of Nielsen's ten heuristic principles. RESULTS: Participants frequently made operational errors with most in navigation and assuming non-existent functionalities. We also noted that participants' learning styles varied, with age as a potential factor that influenced how they learned MCB. Also, participants preferred to individually message providers and wanted feedback on status. CONCLUSION: The design of inpatient portals can greatly impact how patients navigate and comprehend information in inpatient portals; poor design can result in a frustrating user experience. For inpatient portals to be effective in promoting patient engagement, it remains critical for technology developers and hospital administrators to understand how users interact with this technology and the resources that may be necessary to support its use. PMID- 29331250 TI - Inferred joint multigram models for medical term normalization according to ICD. AB - BACKGROUND: Electronic Health Records (EHRs) are written using spontaneous natural language. Often, terms do not match standard terminology like the one available through the International Classification of Diseases (ICD). OBJECTIVE: Information retrieval and exchange can be improved using standard terminology. Our aim is to render diagnostic terms written in spontaneous language in EHRs into the standard framework provided by the ICD. METHODS: We tackle diagnostic term normalization employing Weighted Finite-State Transducers (WFSTs). These machines learn how to translate sequences, in the case of our concern, spontaneous representations into standard representations given a set of samples. They are highly flexible and easily adaptable to terminological singularities of each different hospital and practitioner. Besides, we implemented a similarity metric to enhance spontaneous-standard term matching. RESULTS: From the 2850 spontaneous DTs randomly selected we found that only 7.71% were written in their standard form matching the ICD. This WFST-based system enabled matching spontaneous ICDs with a Mean Reciprocal Rank of 0.68, which means that, on average, the right ICD code is found between the first and second position among the normalized set of candidates. This guarantees efficient document exchange and, furthermore, information retrieval. CONCLUSION: Medical term normalization was achieved with high performance. We found that direct matching of spontaneous terms using standard lexicons leads to unsatisfactory results while normalized hypothesis generation by means of WFST helped to overcome the gap between spontaneous and standard language. PMID- 29331251 TI - Bridging clinical researcher perceptions and health IT realities: A case study of stakeholder creep. AB - PURPOSE: We present a case report detailing a challenge in health information technology (HIT) project implementations we term "stakeholder creep": not thoroughly identifying which stakeholders need to be involved and why before starting a project, consequently not understanding the true effort, skill sets, social capital, and time required to complete the project. METHODS: A root cause analysis was performed post-implementation to understand what led to stakeholder creep. HIT project stakeholders were given a questionnaire to comment on these misconceptions and a proposed implementation tool to help mitigate stakeholder creep. FINDINGS: Stakeholder creep contributed to an unexpected increase in time (3-month delayed go-live) and effort (68% over expected HIT work hours). Four main clinician/researcher misconceptions were identified that contributed to the development of stakeholder creep: 1) that EHR IT is a single group; 2) that all EHR IT members know the entire EHR functionality; 3) that changes to an EHR need the input of just a single EHR IT member; and 4) that the technological complexity of a project mirrors the clinical complexity. HIT project stakeholders similarly perceived clinicians/researchers to hold these misconceptions. The proposed stakeholder planning tool was perceived to be feasible and helpful. CONCLUSIONS: Stakeholder creep can negatively affect HIT project implementations. Projects may be susceptible to stakeholder creep when clinicians/researchers hold misconceptions related to HIT organization and processes. Implementation tools, such as the proposed stakeholder checklist, could be helpful in preempting and mitigating the effect of stakeholder creep. PMID- 29331252 TI - Investigating the need for clinicians to use tablet computers with a newly envisioned electronic health record. AB - OBJECTIVE: The Veterans Health Administration (VHA) has deployed a large number of tablet computers in the last several years. However, little is known about how clinicians may use these devices with a newly planned Web-based electronic health record (EHR), as well as other clinical tools. The objective of this study was to understand the types of use that can be expected of tablet computers versus desktops. METHODS: Semi-structured interviews were conducted with 24 clinicians at a Veterans Health Administration (VHA) Medical Center. RESULTS: An inductive qualitative analysis resulted in findings organized around recurrent themes of: (1) Barriers, (2) Facilitators, (3) Current Use, (4) Anticipated Use, (5) Patient Interaction, and (6) Connection. CONCLUSIONS: Our study generated several recommendations for the use of tablet computers with new health information technology tools being developed. Continuous connectivity for the mobile device is essential to avoid interruptions and clinician frustration. Also, making a physical keyboard available as an option for the tablet was a clear desire from the clinicians. Larger tablets (e.g., regular size iPad as compared to an iPad mini) were preferred. Being able to use secure messaging tools with the tablet computer was another consistent finding. Finally, more simplicity is needed for accessing patient data on mobile devices, while balancing the important need for adequate security. PMID- 29331253 TI - Evaluation of three machine learning models for self-referral decision support on low back pain in primary care. AB - BACKGROUND: Most people experience low back pain (LBP) at least once in their life and for some patients this evolves into a chronic condition. One way to prevent acute LBP from transiting into chronic LBP, is to ensure that patients receive the right interventions at the right moment. We started research in the design of a clinical decision support system (CDSS) to support patients with LBP in their self-referral to primary care. For this, we explored the possibilities of using supervised machine learning. We compared the performances of the three classification models - i.e. 1. decision tree, 2. random forest, and 3. boosted tree - to get insight in which model performs best and whether it is already acceptable to use this model in real practice. METHODS: The three models were generated by means of supervised machine learning with 70% of a training dataset (1288 cases with 65% GP, 33% physio, 2% self-care cases). The cases in the training dataset were fictive cases on low back pain collected during a vignette study with primary healthcare professionals. We also wanted to know the performance of the models on real-life low back pain cases that were not used to train the models. Therefore we also collected real-life cases on low back pain as test dataset. These cases were collected with the help of patients and healthcare professionals in primary care. For each model, the performance was measured during model validation - with 30% of the training dataset -as well as during model testing - with the test dataset containing real-life cases. The total observed accuracy as well as the kappa, and the sensitivity, specificity, and precision were used as performance measures to compare the models. RESULTS: For the training dataset, the total observed accuracies of the decision tree, the random forest and boosted tree model were 70%, 69%, and 72% respectively. For the test dataset, the total observed accuracies were 71%, 53%, and 71% respectively. The boosted tree appeared to be the best for predicting a referral advice with a fair accuracy (Kappa between 0.2 and 0.4). Next to this, the measured evaluation measures show that all models provided a referral advice better than just a random guess. This means that all models learned some implicit knowledge of the provided referral advices in the training dataset. CONCLUSIONS: The study showed promising results on the possibility of using machine learning in the design of our CDSS. The boosted tree model performed best on the classification of low back pain cases, but still has to be improved. Therefore, new cases have to be collected, especially cases that are classified as self-care cases. This to be sure that also the self-care advice can be predicted well by the model. PMID- 29331254 TI - Technology alignment in the presence of regulatory changes: The case of meaningful use of information technology in healthcare. AB - OBJECTIVES: Using the context of the healthcare sector, this study examines the impact of regulatory change on technology implementation and use. Hospitals are now federally mandated to showcase meaningful use of information technology (IT). We theorize that IT plan scope structured prior to a regulatory change by means of a long-term planning horizon, top management involvement, and steering committee engagement impacts organizations' ability to fulfill meaningful use requirements three to five years later. Furthermore, we contend that this impact is contingent on the specific IT adoption strategy. METHODS: Data from the HIMSS and HITECH Act databases were combined to analyze 688 hospitals. Regression analyses were used to test the hypotheses. RESULTS: The results of this longitudinal study show that frequency of steering committee meetings and length of planning horizon broaden IT plan scope. Broader IT plan scope is positively associated with the ability of organizations to meaningfully use IT. CONCLUSIONS: The link between IT plan scope and meaningful use metric is particularly significant for organizations that adopt a more integrated approach towards IT adoption. Average reimbursement amount differences are provided and discussed between the different IT adoption strategies. PMID- 29331255 TI - An automated and robust image processing algorithm for glaucoma diagnosis from fundus images using novel blood vessel tracking and bend point detection. AB - Glaucoma is an ocular disease which can cause irreversible blindness. The disease is currently identified using specialized equipment operated by optometrists manually. The proposed work aims to provide an efficient imaging solution which can help in automating the process of Glaucoma diagnosis using computer vision techniques from digital fundus images. The proposed method segments the optic disc using a geometrical feature based strategic framework which improves the detection accuracy and makes the algorithm invariant to illumination and noise. Corner thresholding and point contour joining based novel methods are proposed to construct smooth contours of Optic Disc. Based on a clinical approach as used by ophthalmologist, the proposed algorithm tracks blood vessels inside the disc region and identifies the points at which first vessel bend from the optic disc boundary and connects them to obtain the contours of Optic Cup. The proposed method has been compared with the ground truth marked by the medical experts and the similarity parameters, used to determine the performance of the proposed method, have yield a high similarity of segmentation. The proposed method has achieved a macro-averaged f-score of 0.9485 and accuracy of 97.01% in correctly classifying fundus images. The proposed method is clinically significant and can be used for Glaucoma screening over a large population which will work in a real time. PMID- 29331256 TI - Measuring non-administration of ordered medications in the pediatric inpatient setting. AB - OBJECTIVE: Medication compliance in inpatient settings shows some significant gaps for adult patients. In pediatric settings prescribing and other administration errors have been studied but missed doses have not been specifically studied in the pediatric inpatient setting. We intended to apply health information technology and data processing methods to study the medication compliance for pediatric patients at our institution. STUDY DESIGN: We collected medication ordering, dispensing, and administration data spanning 42 months (7/1/2010 through 12/31/2013) for pediatric inpatients admitted to a major tertiary pediatric hospital. We analyzed the orders for which either the corresponding administration record was missing or the records indicated non administration. RESULTS: There were only 596 medication orders without corresponding administration records, accounting for less than 0.05% of 1.6 Million orders for 56,000 patients. There were 40,999 orders with corresponding administration records indicating non-administration (or less than 3% of all orders). Overall order compliance of the nursing staff was 97.35%, with another 2.6% of orders having a documented reason for non-administration The top two medication classes comprising the missed and non-administered orders were "Alimentary tract and metabolism drugs" and "Nervous system drugs". CONCLUSION: Measurement of medication compliance is an important quality measure of patient safety and quality of care. Our study found a small proportion of non administered medication orders and discovered corresponding reasons illustrating how health information technology can help to measure the quality of the medication process from ordering and dispensing to administration at a major healthcare institution. PMID- 29331257 TI - Service provision, pricing, and patient satisfaction in online health communities. AB - : Background The emergence of online health communities (OHCs) broadens and diversifies channels for patient-doctor interaction. In recent times, patient satisfaction has gained new attention within the context of OHCs where unique patterns are provided: a variety of services with unique attributes are available in OHCs for patients and doctors have the options of providing and pricing for different services. OHCs are given high hopes on improving medical efficiency and patient satisfaction. Knowing how these patterns in OHCs affect patient satisfaction is crucial for the development of OHCs and medical practices. METHODS: An empirical research is conducted to examine the effects of provision and pricing of online services on patient satisfaction by analyzing data from 2309 doctors in a Chinese OHC. RESULTS: The results from this study provided empirical support, suggesting that service quantity positively influenced patient satisfaction. A non-linear correlation between service price and satisfaction was explored and results suggested an inverted U-shaped relationship. At the low price level, service price led to an increase in patient satisfaction, whereas the high price level (over 330 CNY/US$49) could have just the opposite effect. Importantly, we found that price difference between a doctor's different services significantly decreased patient satisfaction. A mediating effect was tested in post-hoc analyses, and results revealed that the impact of price difference on patient satisfaction was partially mediated by flexibility of service selection, and the mediating effect accounted for 28.6% of the total effect. CONCLUSIONS: Our results indicate that patient satisfaction can be improved by effectively providing and pricing services in OHCs. Specifically, doctors can offer different type services and charge within a reasonable range. PMID- 29331258 TI - Clinician user involvement in the real world: Designing an electronic tool to improve interprofessional communication and collaboration in a hospital setting. AB - OBJECTIVES: User involvement is vital to the success of health information technology implementation. However, involving clinician users effectively and meaningfully in complex healthcare organizations remains challenging. The objective of this paper is to share our real-world experience of applying a variety of user involvement methods in the design and implementation of a clinical communication and collaboration platform aimed at facilitating care of complex hospitalized patients by an interprofessional team of clinicians. METHODS: We designed and implemented an electronic clinical communication and collaboration platform in a large community teaching hospital. The design team consisted of both technical and healthcare professionals. Agile software development methodology was used to facilitate rapid iterative design and user input. We involved clinician users at all stages of the development lifecycle using a variety of user-centered, user co-design, and participatory design methods. RESULTS: Thirty-six software releases were delivered over 24 months. User involvement has resulted in improvement in user interface design, identification of software defects, creation of new modules that facilitated workflow, and identification of necessary changes to the scope of the project early on. CONCLUSION: A variety of user involvement methods were complementary and benefited the design and implementation of a complex health IT solution. Combining these methods with agile software development methodology can turn designs into functioning clinical system to support iterative improvement. PMID- 29331259 TI - Public and physician's expectations and ethical concerns about electronic health record: Benefits outweigh risks except for information security. AB - INTRODUCTION: Electronic Health Record systems (EHRs) offer numerous benefits in health care but also pose certain risks. As we progress toward the implementation of EHRs, a more in-depth understanding of attitudes that influence overall levels of EHR support is required. OBJECTIVES: To record public and physicians' awareness, expectations for, and ethical concerns about the use of EHRs. METHODS: A convenience sample was surveyed for both the public and physicians. The Public's Questionnaire was distributed to the public in a printed and an online version. The Physicians' Questionnaire was distributed to physicians in an online version. The questionnaires requested demographic characteristics followed by close-ended questions enquiring about awareness, perceived impact, perceived risks, and ethical issues raised by EHR use. RESULTS: In total, 46% of the public and 91% of physicians were aware of EHRs. Physicians' and public opinions were comparable concerning the positive impact of EHRs on better, more effective, and faster decisions on the patients' health, on better coordination between hospitals/clinics and on quality and reduced cost of health care. However, physicians were concerned that an EHR system would be a burden for their finances, for their time concerning training on the system, for their everyday workload and workflow. The majority of the public generally agreed that they would worry about the possibility that a non-authorized, third party might gain access to their personal health information (48.8%), and that they would worry about future discriminations due to possible disclosure of their health information (48.8%). Most physicians disagreed that EHRs will disrupt the doctor patient relationship (58.1%) but they would worry about the safety of their patients' information (53.1%). Overall, both the public and physicians were in favor of the implementation of an EHR system, evaluating that possible benefits are more important than possible risks. The majority of the public believed that physicians should have full access to an EHR (90.9%), whereas nursing staff, pharmacists, laboratory staff, and other healthcare professional should have partial access. CONCLUSIONS: The factors identified in the present study present actionable insights that may increase awareness about EHRs. The survey illustrates that both the public and physicians acknowledge the benefits and support EHRs on the condition that sufficient guarantees are provided about privacy and security. PMID- 29331261 TI - Necrotizing Granulomatous Inflammation with Airway Tissue Destruction. PMID- 29331260 TI - Multifaceted behavior of Meckel's diverticulum in children. AB - PURPOSE/BACKGROUND: Meckel's diverticulum (MD) is one of the most common congenital malformations of gastrointestinal tract in children. However, the nonspecific clinical manifestations of MD often cause a diagnostic as well as therapeutic challenge to pediatric surgeon. This study aimed to review our experience in managing this disease while evaluating the management strategies. METHODS: We retrospectively analyzed the clinical data of all patients diagnosed with MD admitted to our center between January 2010 and December 2015. Factors documented including demographic criteria, clinical manifestations, preoperative examinations, surgical methods, histopathological characteristics, postoperative complications, and outcomes. RESULTS: The patients included 210 males and 76 females, aged from 1day to 15years. In fifty three patients, the MD was an incidental finding at laparotomy or laparoscopy. The remaining 233 patients were symptomatic and presented with various clinical features. Ninety nine patients presented with episodes of bleeding per rectum or melena. Fifty six patients demonstrated symptoms of diverticulitis or perforated MD. Forty patients were diagnosed as intestinal obstruction, and 35 patients with intussusception requiring surgical reduction. Two cases of Littre hernia and one case of foreign body trapped in MD were also observed in this group. Six patients misdiagnosed as appendicitis at another institution were reoperated in our department. Among the 99 patients with bleeding per rectum, 78 underwent a Tc-99m scan that showed a positive tracer in 55 patients and negative in 23. All patients underwent resection of the diverticulum, except for 2 cases of postponed resection. Histology revealed ectopic gastric mucosa or ectopic pancreatic tissue in 154 patients; significant differences were observed between the symptomatic group and the accidentally found group. One patient died of peritonitis and sepsis postoperatively; one case of anastomotic leak and one case of adhesive intestinal obstruction were reoperated. CONCLUSION: Meckel's diverticulum has various clinical presentations and it is difficult to make a precise diagnosis preoperatively. It is necessary to maintain a high suspicion of MD in the pediatric age group with symptoms of abdominal pain, gastrointestinal hemorrhage or intestinal obstruction. Heterotopic tissue is the main cause of complicated diverticulum, and it is safe and feasible to remove the incidentally found MD. Laparoscopy should become the first choice of methods in diagnosis and treatment of MD. TYPE OF STUDY: Treatment study. LEVEL OF EVIDENCE: Level IV. PMID- 29331262 TI - Can Interrogation of Tumour Characteristics Lead us to Safely Omit Adjuvant Radiotherapy in Patients with Early Breast Cancer? AB - Adjuvant radiotherapy after breast-conserving surgery has been an important component of the standard of care for early breast cancer. Improvements in breast cancer care have resulted in a substantial reduction in local relapse rates over recent decades. Although the proportional benefits of adjuvant radiotherapy are similar for different prognostic risk groups of patients, the absolute benefits depend on the risk of relapse and therefore vary considerably between prognostic groups. Radiotherapy is not without risk and for some patients at very low risk of relapse the risks of radiotherapy may outweigh the benefit, leading to potential overtreatment. Randomised controlled trial (RCT) evidence shows that omission of radiotherapy in low risk early breast cancer does not reduce overall survival or increase breast cancer mortality and local recurrences are salvageable. Despite this there has not been a change in practice regarding omission of radiotherapy. The reasons for this may include challenges in patient selection. Recent advances in immunohistochemistry and genomic profiling may improve risk stratification and the development of biomarkers to directed therapies. Several RCTs have quantified the benefit of radiotherapy in reducing local relapse. Where a treatment benefit is known but is considered to be so small not to be clinically relevant then alternatives to RCTs may be considered to answer the question of need. This is because we can assess risk against a fixed 'absolute' boundary rather than needing a randomised comparator. The prospective cohort study is an alternative to the RCT design to answer the question of need for radiotherapy. The feasibility of recruitment into biomarker directed de-escalation studies will become apparent as more studies open. The challenge is to determine if we are able to accurately risk stratify patients and avoid unnecessary toxicity, thereby tailoring the need for adjuvant breast radiotherapy on an individual patient basis. PMID- 29331263 TI - Glial scars are permeable to the neurotoxic environment of chronic stroke infarcts. AB - Following stroke, the damaged tissue undergoes liquefactive necrosis, a stage of infarct resolution that lasts for months although the exact length of time is currently unknown. One method of repair involves reactive astrocytes and microglia forming a glial scar to compartmentalize the area of liquefactive necrosis from the rest of the brain. The formation of the glial scar is a critical component of the healing response to stroke, as well as other central nervous system (CNS) injuries. The goal of this study was to evaluate the toxicity of the extracellular fluid present in areas of liquefactive necrosis and determine how effectively it is segregated from the remainder of the brain. To accomplish this goal, we used a mouse model of stroke in conjunction with an extracellular fluid toxicity assay, fluorescent and electron microscopy, immunostaining, tracer injections into the infarct, and multiplex immunoassays. We confirmed that the extracellular fluid present in areas of liquefactive necrosis following stroke is toxic to primary cortical and hippocampal neurons for at least 7 weeks following stroke, and discovered that although glial scars are robust physical and endocytic barriers, they are nevertheless permeable. We found that molecules present in the area of liquefactive necrosis can leak across the glial scar and are removed by a combination of paravascular clearance and microglial endocytosis in the adjacent tissue. Despite these mechanisms, there is delayed atrophy, cytotoxic edema, and neuron loss in regions adjacent to the infarct for weeks following stroke. These findings suggest that one mechanism of neurodegeneration following stroke is the failure of glial scars to impermeably segregate areas of liquefactive necrosis from surviving brain tissue. PMID- 29331264 TI - Altered levels of the splicing factor muscleblind modifies cerebral cortical function in mouse models of myotonic dystrophy. AB - Myotonic dystrophy (DM) is a progressive, multisystem disorder affecting skeletal muscle, heart, and central nervous system. In both DM1 and DM2, microsatellite expansions of CUG and CCUG RNA repeats, respectively, accumulate and disrupt functions of alternative splicing factors, including muscleblind (MBNL) proteins. Grey matter loss and white matter changes, including the corpus callosum, likely underlie cognitive and executive function deficits in DM patients. However, little is known how cerebral cortical circuitry changes in DM. Here, flavoprotein optical imaging was used to assess local and contralateral responses to intracortical motor cortex stimulation in DM-related mouse models. In control mice, brief train stimulation generated ipsilateral and contralateral homotopic fluorescence increases, the latter mediated by the corpus callosum. Single pulse stimulation produced an excitatory response with an inhibitory-like surround response mediated by GABAA receptors. In a mouse model of DM2 (Mbnl2 KO), we observed prolonged and increased responsiveness to train stimulation and loss of the inhibition from single pulse stimulation. Conversely, mice overexpressing human MBNL1 (MBNL1-OE) exhibited decreased contralateral response to train stimulation and reduction of inhibitory-like surround to single pulse stimulation. Therefore, altering levels of two key DM-associated splicing factors modifies functions of local cortical circuits and contralateral responses mediated through the corpus callosum. PMID- 29331266 TI - Human papilloma virus-specific T cells can be generated from naive T cells for use as an immunotherapeutic strategy for immunocompromised patients. AB - Human papilloma virus (HPV) is a known cause of cervical cancer, squamous cell carcinoma and laryngeal cancer. Although treatments exist for HPV-associated malignancies, patients unresponsive to these therapies have a poor prognosis. Recent findings from vaccine studies suggest that T-cell immunity is essential for disease control. Because Epstein-Barr Virus (EBV)-specific T cells have been highly successful in treating or preventing EBV-associated tumors, we hypothesized that the development of a manufacturing platform for HPV-specific T cells from healthy donors could be used in a third-party setting to treat patients with high-risk/relapsed HPV-associated cancers. Most protocols for generating virus-specific T cells require prior exposure of the donor to the targeted virus and, because the seroprevalence of high-risk HPV types varies greatly by age and ethnicity, manufacturing of donor-derived HPV-specific T cells has proven challenging. We, therefore, made systematic changes to our current Good Manufacturing Practice (GMP)-compliant protocols to improve antigen presentation, priming and expansion for the manufacture of high-efficacy HPV specific T cells. Like others, we found that current methodologies fail to expand HPV-specific T cells from most healthy donors. By optimizing dendritic cell maturation and function with lipopolysaccharide (LPS) and interferon (IFN)gamma, adding interleukin (IL)-21 during priming and depleting memory T cells, we achieved reliable expansion of T cells specific for oncoproteins E6 and E7 to clinically relevant amounts (mean, 578-fold expansion; n = 10), which were polyfunctional based on cytokine multiplex analysis. In the third-party setting, such HPV-specific T-cell products might serve as a potent salvage therapy for patients with HPV-associated diseases. PMID- 29331265 TI - Mechanisms of Memory Disruption in Depression. AB - Depressed individuals typically show poor memory for positive events, potentiated memory for negative events, and impaired recollection. These phenomena are clinically important but poorly understood. Compelling links between stress and depression suggest promising candidate mechanisms. Stress can suppress hippocampal neurogenesis, inhibit dopamine neurons, and sensitize the amygdala. We argue that these phenomena may impair pattern separation, disrupt the encoding of positive experiences, and bias retrieval toward negative events, respectively, thus recapitulating core aspects of memory disruption in depression. Encouragingly, optogenetic reactivation of cells engaged during the encoding of positive memories rapidly reduces depressive behavior in preclinical models. Thus, many memory deficits in depression appear to be downstream consequences of chronic stress, and addressing memory disruption can have therapeutic value. PMID- 29331267 TI - Identification and initial optimization of inhibitors of Clostridium difficile (C. difficile) toxin B (TcdB). AB - The discovery, synthesis and preliminary structure-activity relationship (SAR) of a novel class of inhibitors of Clostridium difficile (C. difficile) toxin B (TcdB) is described. A high throughput screening (HTS) campaign resulted in the identification of moderately active screening hits 1-5 the most potent of which was compound 1 (IC50 = 0.77 uM). In silico docking of an early analog offered suggestions for structural modification which resulted in the design and synthesis of highly potent analogs 13j(IC50 = 1 nM) and 13 l(IC50 = 7 nM) which were chosen as leads for further optimization. PMID- 29331268 TI - The Population Biology and Transmission Dynamics of Loa loa. AB - Endemic to Central Africa, loiasis - or African eye worm (caused by the filarial nematode Loa loa) - affects more than 10 million people. Despite causing ocular and systemic symptoms, it has typically been considered a benign condition, only of public health relevance because it impedes mass drug administration-based interventions against onchocerciasis and lymphatic filariasis in co-endemic areas. Recent research has challenged this conception, demonstrating excess mortality associated with high levels of infection, implying that loiasis warrants attention as an intrinsic public health problem. This review summarises available information on the key parasitological, entomological, and epidemiological characteristics of the infection and argues for the mobilisation of resources to control the disease, and the development of a mathematical transmission model to guide deployment of interventions. PMID- 29331269 TI - Clinical benefits of autologous haematopoietic stem cell transplantation in type 1 diabetes patients. AB - : Type 1 diabetes (T1D) is characterized by severe damage to pancreas islet function through immunological attack; therefore, it is also called 'insulin dependent diabetes'. The present study aimed to evaluate the safety and clinical efficacy of autologous haematopoietic stem cell transplantation (AHSCT) in adolescent patients with newly diagnosed T1D. A phase-II prospective, parallel assignment, non-randomized trial was conducted from March 2008 to December 2011 with 40 T1D patients, of whom 20 received AHSCT therapy and 20 were treated only with insulin injections. Of these patients, 14 (70%) in the AHSCT group became insulin-independent for 1.5 to 48 months compared with only one patient in the Insulin group. Of these 14 AHSCT patients, 11 relapsed within a median time of 19.5 (range 5.5-1) months and resumed insulin use. By the end of the 4-year follow-up, the difference in daily insulin dosages between the AHSCT and Insulin groups had become smaller (0.49+/-0.32IU/kg/day vs. 0.79+/-0.18IU/kg/day, respectively; P<0.01). C-peptide levels increased significantly at 3 months in both groups and later decreased, with the insulin group showing more rapid deterioration. Most of the adverse events in the AHSCT group were transplantation complications. Our data suggest that AHSCT treatment was well tolerated and slowed deterioration of islet beta-cell function while significantly decreasing daily insulin dosages. However, because of the high relapse rate, more information on longer-term outcomes is needed before AHSCT can be routinely considered for T1D patients. SIGNIFICANCE: although this was a non-randomized clinical study, this phase-II trial demonstrated the beneficial effects of AHSCT in patients with newly diagnosed T1D by increasing C-peptide levels and inducing insulin independence, while showing its safety and good tolerability compared with conventional intensive insulin therapy. Thus, these results are helpful for increasing our understanding of the use of haematopoietic stem cell therapy in the treatment of T1D and for evaluating whether it can become more widespread in future. PMID- 29331271 TI - The durability of operational improvements with rotational patient assignment. AB - INTRODUCTION: Previous work has suggested that Emergency Department rotational patient assignment (a system in which patients are algorithmically assigned to physicians) is associated with immediate (first-year) improvements in operational metrics. We sought to determine if these improvements persisted over a longer follow-up period. METHODS: Single-site, retrospective analysis focused on years 2 4 post-implementation (follow-up) of a rotational patient assignment system. We compared operational data for these years with previously published data from the last year of physician self-assignment and the first year of rotational patient assignment. We report data for patient characteristics, departmental characteristics and facility characteristics, as well as outcomes of length of stay (LOS), arrival to provider time (APT), and rate of patients who left before being seen (LBBS). RESULTS: There were 140,673 patient visits during the five year period; 138,501 (98.7%) were eligible for analysis. LOS, APT, and LBBS during follow-up remained improved vs. physician self-assignment, with improvements similar to those noted in the first year of implementation. Compared with the last year of physician self-assignment, approximate yearly average improvements during follow-up were a decrease in median LOS of 18min (8% improvement), a decrease in median APT of 21min (54% improvement), and a decrease in LBBS of 0.69% (72% improvement). CONCLUSION: In a single facility study, rotational patient assignment was associated with sustained operational improvements several years after implementation. These findings provide further evidence that rotational patient assignment is a viable strategy in front-end process redesign. PMID- 29331270 TI - Severe beta blocker and calcium channel blocker overdose: Role of high dose insulin. AB - A 54-year-old female presented after taking an overdose of an unknown amount of hydrochlorothiazide, doxazocin, atenolol and amlodipine. She was initially refractory to treatment with conventional therapy (intravenous fluids, activated charcoal, glucagon 5 mg followed with glucagon drip, calcium gluconate 10%, and atropine). Furthermore, insulin at 4 U/kg was not effective in improving her hemodynamics. Shortly after high dose insulin was achieved with 10 U/kg, there was dramatic improvement in hemodynamics resulting in three of five vasopressors being weaned off in 8 h. She was subsequently off all vasopressors after six additional hours. The role of high dose insulin has been documented in prior cases, however it is generally recommended after other conventional therapies have failed. However, there are other reports that suggest it as initial therapy. Our patient failed conventional therapies and responded well only with maximum dose of insulin. Physicians should consider high dose insulin early in severe beta blocker or calcium channel blocker overdose for improvement in hemodynamics. This leads to early discontinuation of vasopressors. It is important that emergency physicians be aware of the beneficial effects of high dose insulin when initiated early as opposed to waiting for conventional therapy to fail; as these patients often present first to the emergency department. Early initiation in the emergency department can be beneficial in these patients. PMID- 29331272 TI - High-Sensitivity Cardiac Troponin and New-Onset Heart Failure: A Systematic Review and Meta-Analysis of 67,063 Patients With 4,165 Incident Heart Failure Events. AB - OBJECTIVES: The aim of this study was to systematically collate and appraise the available evidence regarding the association between high-sensitivity cardiac troponin (hs-cTn) and incident heart failure (HF) and the added value of hs-cTn in HF prediction. BACKGROUND: Identification of subjects at high risk for HF and early risk factor modification with medications such as angiotensin-converting enzyme inhibitors may delay the onset of HF. Hs-cTn has been suggested as a prognostic marker for the incidence of first-ever HF in asymptomatic subjects. METHODS: PubMed, Embase, and Web of Science were systematically searched for prospective cohort studies published before January 2017 that reported associations between hs-cTn and incident HF in subjects without baseline HF. Study-specific multivariate-adjusted hazard ratios (HRs) were pooled using random effects meta-analysis. RESULTS: Data were collated from 16 studies with a total of 67,063 subjects and 4,165 incident HF events. The average age was 57 years, and 47% were women. Study quality was high (Newcastle-Ottawa score 8.2 of 9). In a comparison of participants in the top third with those in the bottom third of baseline values of hs-cTn, the pooled multivariate-adjusted HR for incident HF was 2.09 (95% confidence interval [CI]: 1.76 to 2.48; p < 0.001). Between-study heterogeneity was high, with an I2 value of 80%. HRs were similar in men and women (2.29 [95% CI: 1.64 to 3.21] vs. 2.18 [95% CI: 1.68 to 2.81]) and for hs cTnI and hs-cTnT (2.09 [95% CI: 1.53 to 2.85] vs. 2.11 [95% CI: 1.69 to 2.63]) and across other study-level characteristics. Further adjustment for B-type natriuretic peptide yielded a similar HR of 2.08 (95% CI: 1.64 to 2.65). Assay of hs-cTn in addition to conventional risk factors provided improvements in the C index of 1% to 3%. CONCLUSIONS: Available prospective studies indicate a strong association of hs-cTn with the risk of first-ever HF and significant improvements in HF prediction. PMID- 29331273 TI - Meta-Analyses and Interpretation of Troponin Values in Heart Failure. PMID- 29331274 TI - Clinical outcomes of endoscopic submucosal dissection for large colorectal laterally spreading tumors in older adults. AB - BACKGROUND AND AIMS: The colorectal endoscopic submucosal dissection (ESD) remains technically challenging, especially for older patients who frequently encounter complex chronic diseases and have a loose colon. However, only limited number of studies are available for the safety of ESD in older patients with especially large laterally spreading tumors. Therefore, in this retrospective study, we compared the outcomes of ESD for laterally spreading tumors (LST) >=3cm(cm) in older patients to that in younger patients. METHODS: Consecutive patients with LSTs 3cm or larger were enrolled for from May 2010-2016. These patients were divided into two groups: the younger group (<65years) and the older group (>=65years). The clinicopathologic findings and the outcomes of ESD procedures were compared between the two groups. RESULTS: A total of 70 patients in the younger group and 73 patients in the older group were treated by ESD for colorectal LSTs larger than 3cm. No significant differences were observed in the gender ratio, tumor morphological type, tumor location, and tumor size between the two groups. The en bloc resection rates were 85.7 and 89.0%, respectively, without a significant difference. The procedural time was similar between the younger and older patients (71.8+/-34.7min vs. 70.6+/-29.5min). The duration of hospital stay was not significantly different between the two groups (4.1+/ 2.2days vs. 4.4+/-2.5days). No significant differences were observed between the two groups with respect to ESD-related complications including delayed bleeding, perforation, and stricture. CONCLUSIONS: ESD appears to be an effective and safe method for LSTs larger than 3cm in older patients. PMID- 29331275 TI - Low-level cadmium exposure and cardiovascular outcomes in elderly Australian women: A cohort study. AB - BACKGROUND: Cadmium has been associated with increased risk of cardiovascular disease (CVD) in observational studies, however there has been a limited focus on this relationship in women. OBJECTIVES: This study investigated the association of urinary cadmium (UCd) concentrations with CVD outcomes and all-cause mortality in elderly Western Australian (WA) women. METHODS: UCd excretion was measured at baseline in 1359 women, mean age 75.2 +/- 2.7 years and 14.5 years of atherosclerotic vascular disease (ASVD) hospitalisations and deaths, including both the principle cause of death and all associated causes of death. Health outcome data were retrieved from the Western Australian Data Linkage System. Cox regression analysis was used to estimate hazard ratios of ASVD and all-cause mortality. UCd was ln-transformed and models were adjusted for demographic and CVD risk factors. RESULTS: Median (IQR) concentration of UCd was 0.18 (0.09-0.32) MUg/L. In multivariable-adjusted analyses per ln unit (equivalent to ~2.7 fold) increase in UCd, there was a 36% increase in the risk of death from heart failure and 17% increase in the risk of a heart failure event, respectively (HR = 1.36, 95% CI 1.11-1.67; HR = 1.17, 95% CI 1.01-1.35). When analyses were restricted to never smokers the relationship between UCd and death from heart failure remained (HR 1.29, 95% CI 1.01-1.63). CONCLUSIONS: This study suggests that even at low levels of exposure cadmium may be associated with heart failure hospitalisations and deaths in older women, however given the dilute nature of these urine samples, the results must be interpreted with caution. PMID- 29331276 TI - Analyzing recommender systems for health promotion using a multidisciplinary taxonomy: A scoping review. AB - BACKGROUND: Recommender systems are information retrieval systems that provide users with relevant items (e.g., through messages). Despite their extensive use in the e-commerce and leisure domains, their application in healthcare is still in its infancy. These systems may be used to create tailored health interventions, thus reducing the cost of healthcare and fostering a healthier lifestyle in the population. OBJECTIVE: This paper identifies, categorizes, and analyzes the existing knowledge in terms of the literature published over the past 10 years on the use of health recommender systems for patient interventions. The aim of this study is to understand the scientific evidence generated about health recommender systems, to identify any gaps in this field to achieve the United Nations Sustainable Development Goal 3 (SDG3) (namely, "Ensure healthy lives and promote well-being for all at all ages"), and to suggest possible reasons for these gaps as well as to propose some solutions. METHODS: We conducted a scoping review, which consisted of a keyword search of the literature related to health recommender systems for patients in the following databases: ScienceDirect, PsycInfo, Association for Computing Machinery, IEEExplore, and Pubmed. Further, we limited our search to consider only English-language journal articles published in the last 10 years. The reviewing process comprised three researchers who filtered the results simultaneously. The quantitative synthesis was conducted in parallel by two researchers, who classified each paper in terms of four aspects-the domain, the methodological and procedural aspects, the health promotion theoretical factors and behavior change theories, and the technical aspects-using a new multidisciplinary taxonomy. RESULTS: Nineteen papers met the inclusion criteria and were included in the data analysis, for which thirty-three features were assessed. The nine features associated with the health promotion theoretical factors and behavior change theories were not observed in any of the selected studies, did not use principles of tailoring, and did not assess (cost) effectiveness. DISCUSSION: Health recommender systems may be further improved by using relevant behavior change strategies and by implementing essential characteristics of tailored interventions. In addition, many of the features required to assess each of the domain aspects, the methodological and procedural aspects, and technical aspects were not reported in the studies. CONCLUSIONS: The studies analyzed presented few evidence in support of the positive effects of using health recommender systems in terms of cost-effectiveness and patient health outcomes. This is why future studies should ensure that all the proposed features are covered in our multidisciplinary taxonomy, including integration with electronic health records and the incorporation of health promotion theoretical factors and behavior change theories. This will render those studies more useful for policymakers since they will cover all aspects needed to determine their impact toward meeting SDG3. PMID- 29331277 TI - Unplanned reoperation after hepatectomy: an analysis of risk factors and outcomes. AB - BACKGROUND/PURPOSE: Reoperation is being increasingly utilized as a metric for surgical care quality. The aim of this study was to identify the incidence of and risk factors for unplanned reoperation following index hepatectomy. METHODS: Pre, intra- and post-operative information of patients who underwent partial hepatectomy in 435 hospitals participating in the American College of Surgeons National Surgical Quality Improvement Program from 2011 to 2013 were analyzed. RESULTS: 343 (4%) of 9195 patients required reoperation within 30 days of index hepatectomy. The index procedures with the highest incidence of reoperation (%) were trisectionectomy (7%) and right hepatectomy (5%). Patients who underwent reoperation had increased index operative duration (323 +/- 174 min versus 243 +/ 125 min, p < 0.001), postoperative transfusion (57% versus 23%, p < 0.001), wound complications, cardiorespiratory, renal, thromboembolic, and infectious events. Hemorrhage was the most common indication for reoperation (10%). Male gender, ASA class 4, and right hepatectomy or trisectionectomy were independent predictors of reoperation (OR 1.4 [1.1-1.7], p = 0.007; 2.0 [1.3-3.1], p = 0.003; 1.6 [1.2-2.0], p = 0.001 and 2.5 [1.8-3.4], p < 0.001, respectively). All reoperations occurred during index hospitalization and resulted in longer mean length of stay (19 +/- 17 days versus 7 +/- 7 days, p < 0.001). CONCLUSION: Reoperation is associated with several patient characteristics and procedural factors in this national sample. Knowledge of these factors can increase awareness of patients at risk for reoperation. PMID- 29331278 TI - Impact of treatment with a Protein Tyrosine Kinase Inhibitor (Genistein) on acute and chronic experimental Schistosoma mansoni infection. AB - Schistosomiasis mansoni is considered one of the most common fibrotic diseases resulting from inflammation and deposition of fibrous tissue around parasitic eggs trapped in the liver, causing morbidity and mortality. Chemotherapy against schistosomiasis is largely dependent on Praziquantel (PZQ). Yet, the huge administration of it in endemic areas and its incompetence towards the immature stages have raised serious alarms against the development of drug resistance. Few drugs are directed to reverse schistosomal liver fibrosis, particularly at the chronic and advanced stages of the disease. Recently, protein tyrosine kinase (PTK) inhibitors have been identified as potent anti-schistosomal and anti fibrotic drugs against schistosomes, that may suppress and reverse Schistosoma mansoni (S. mansoni) induced liver fibrosis. The present study was designed to assess the anti-schistosomal and antifibrotic activity of Genistein, a PTK inhibitor, in comparison to PZQ, on both acute and chronic S. mansoni-infected mice using different parasitological, histopathological and immunohistochemical studies. Genistein showed a significant reduction (P < .05) in total worm burden, tissue egg load, mean hepatic granulomas diameter and numbers, percentage of collagen and expression of transforming growth factor-beta 1 (TGF-beta 1) in the examined hepatocytes with elevation in percentage of degenerated ova, in comparison to the control groups, in both acute and chronic stages of infection. The best results were obtained when Genistein was combined with PZQ. Therefore, it was concluded that Genistein showed a promising anti-schistosomal and anti fibrotic properties which could make it one of the new potential targets in chemotherapy against schistosomiasis. PMID- 29331279 TI - Dynamics of spatiotemporal distribution of schistosomiasis in Hubei Province, China. AB - Schistosomiasis caused by parasitic flatworms of blood flukes, remains a major public health concern in China. The significant progress in controlling schistosomiasis in China over the past decades has resulted in the remarkable reduction in the prevalence and intensity of Schistosoma japonicum infection to an extremely low level. Therefore, the elimination of schistosomiasis has been promoted by the Chinese national government. Hubei Province is the major endemic area, that is, along the middle and low reaches of the Yangtze River in the lake and marshland regions of southern China. Eliminating the transmission of schistosomiasis in Hubei Province is challenging. The current issue is to determine the distributions and clusters of schistosomiasis transmission. In this study, we assessed the spatial distribution of schistosomiasis and the risk at the county level in Hubei Province from 2011 to 2015 to provide guidance on the elimination of schistosomiasis transmission in lake and marshland regions. Spatial database of human S.japonicum infection from 2011 to 2015 at the county level in the study area was built based on the annual schistosomias is surveillance data. Moran's I, the global spatial autocorrelation statistics, was utilized to describe the spatial autocorrelation of human S. japonicum infection. In addition, purely spatial scan statistics combined with space-time scan statistics were used to determine the epidemic clusters. Infection rates of S. japonicum decreased in each endemic county in Hubei from 2011 to 2015. Human S. japonicum infection rate showed statistical significance by global autocorrelation analysis during the study period (Moran's I > 0, P < 0.01). This result suggested that there were spatial clusters present in the distribution of S. japonicum infection for the five years. Purely spatial analysis of human S. japonicum infection showed one most likely cluster and one secondary cluster from 2011 to 2015, which covered four and one counties, respectively. Spatiotemporal clustering analysis determined one most likely cluster and one secondary cluster both in 2011-2012, which appeared in 4 and 5 counties, respectively. However, the number of clustering foci decreased with time, and no cluster was detected after 2013.The clustering foci were both located at the Jianghan Plain, along the middle reaches of the Yangtze River and its connecting branch Hanbei River. Spatial distribution of human S. japonicum infections did not change temporally at the county level in Hubei Province. A declining trend in spatiotemporal clustering was observed between 2011 and 2015. However, effective control strategies and integrated prevention should be continuously performed, especially at the Jianghan Plain area along the Yangtze and Hanbei River Basin. Multivariate statistical analysis was carried out to investigate the risk of missing examinations, missing treatment, and unstandardized treatment events. The results showed that age, education level and Sanitary latrines are risk factors for missing examinations (b > 0, OR >1), and treatment times in past and feeding cattle in village group are protective factors (b < 0, OR <1). We also found that age and education level are risk factors for missing treatment (b > 0, OR >1). Study of the risk for un-standardized treatment revealed that occupation is risk factors (b > 0, OR >1), though, education level is protective factors (b < 0, OR <1). Therefore, precise prevention and control should be mainly targeted at these special populations. PMID- 29331280 TI - [Jurisdictions on the reimbursement of new medical technologies by public health insurance: A systematic review]. AB - BACKGROUND: In Germany reimbursement for new medical technologies is often enforced before a social court. It is likely that these judicial decisions also affect the sickness funds' decisions on requests for reimbursement and thus patient access to new technologies in general. OBJECTIVES: The aim of this study was to identify the technologies that have repeatedly generated court actions and whether these actions have been successful. The focus was on differences between sectors, technology groups and indications. Based on this, we analysed in a case study whether judicial decisions on the reimbursement of the same technologies vary across the years. MATERIAL AND METHODS: Based on a systematic review, we identified judicial decisions of German social courts on new technologies for the years 2011 to 2016. The analysis included social court decisions on reimbursements for technologies used in the treatment of individual patients. RESULTS: 284 judicial decisions on new technologies were considered in the analysis. In one third of the cases, the sickness funds were required to reimburse the costs, with a higher percentage in inpatient than in outpatient care. Technologies used in treatment of diseases of the eyes and the ears were granted most frequently. In cases involving similar circumstances the social courts sometimes came to conflicting decisions; these decisions are, in part, contradictory to subsequent assessments by the Joint Federal Committee (G-BA). CONCLUSIONS: Decisions as to whether reimbursement for new technologies is granted or not do not appear to follow a systematic approach. In the context of the seemingly innovation-friendly policy in inpatient care, there is uncertainty with regard to the "generally accepted state of medical knowledge." It is problematic for both patients and their treating physicians that over a number of years legal proceedings are being initiated for technologies that have not been subjected to a systematic assessment of their benefit. PMID- 29331281 TI - [Do online ratings reflect structural differences in healthcare? The example of German physician-rating websites]. AB - BACKGROUND: Previous surveys have shown that patient satisfaction varies with the regional supply of physicians. Online ratings on physician-rating websites represent a relatively new instrument to display patient satisfaction results. The aim of this study was (1) to assess the current state of online ratings for two medical disciplines (dermatologists and ear, nose and throat (ENT) specialists), and (2) to analyze online derived patient satisfaction results according to the physician density in Germany. METHODS: We collected online ratings for 420 dermatologists and 450 ear, nose, and throat (ENT) specialists on twelve German physician-rating websites. We analyzed the online ratings according to the physician density (low, medium, high physician density). For this purpose, we collected secondary data from both physician-rating websites and the regional associations of statutory health insurance physicians. Data analysis was performed using Median tests and Chi-square tests. RESULTS: In total, 10,239 online ratings for dermatologists and 8,168 online ratings for ENT specialists were analyzed. Almost all dermatologists (99.3 %) and ENT specialists (98.9 %) were listed on one of the physician-rating websites. A total of 93.5 % of all listed dermatologists and 96.9 % of ENT-specialists were rated on at least one of the physician-rating websites. Significant differences were found in the distribution (i.e., percentage of listed or rated physicians) of the ratings according to the regional physician density on only one physician-rating website (p<0.001). Furthermore, online ratings were shown to be better in regions with a higher physician density on two physician-rating website. On jameda.de, for example, dermatologist ratings were better in regions with a higher physician density compared to regions with a lower number of physicians (average rating: 2.16 vs. 2.67; p<0.001). CONCLUSIONS: Online ratings of dermatologists and ENT specialists hardly differ in terms of regional physician density. Physician rating websites thus do not appear to be appropriate to mirror differences in the health service delivery structure. Our findings thus do not confirm the results from previously published studies. PMID- 29331283 TI - The influx of marine debris from the Great Japan Tsunami of 2011 to North American shorelines. AB - Marine debris is one of the leading threats to the ocean and the Great East Japan Earthquake and tsunami on March 11, 2011 washed away an estimated 5million tons of debris in a single, tragic event. Here we used shoreline surveys, disaster debris reports and ocean drift models to investigate the temporal and spatial trends in the arrival of tsunami marine debris. The increase in debris influx to surveyed North American and Hawaiian shorelines was substantial and significant, representing a 10 time increase over the baseline in northern Washington State where a long term dataset was available. The tsunami event brought different types of debris along the coast, with high-windage items dominant in Alaska and British Columbia and large, medium-windage items in Washington State and Oregon. Recorded cumulative debris landings to North America were close to 100,000 items in the four year study period. The temporal peaks in measured shoreline debris and debris reports match the ocean drift model solutions. Mitigation and monitoring activities, such as shoreline surveys, provide crucial data and monitoring for potential impacts should be continued in the future. PMID- 29331282 TI - Development, Testing, and Implementation of a Training Curriculum for Nonphysician Health Workers to Reduce Cardiovascular Disease. AB - BACKGROUND: Cardiovascular disease (CVD) is the leading cause of death worldwide. The need to address CVD is greatest in low- and middle-income countries where there is a shortage of trained health workers in CVD detection, prevention, and control. OBJECTIVES: Based on the growing evidence that many elements of chronic disease management can be shifted to nonphysician health care workers (NPHW), the HOPE-4 (Heart Outcomes Prevention and Evaluation Program) aimed to develop, test, and implement a training curriculum on CVD prevention and control in Colombia, Malaysia, and low-resource settings in Canada. METHODS: Curriculum development followed an iterative and phased approach where evidence-based guidelines, revised blood pressure treatment algorithms, and culturally relevant risk factor counseling were incorporated. Through a pilot-training process with high school students in Canada, the curriculum was further refined. Implementation of the curriculum in Colombia, Malaysia, and Canada occurred through partner organizations as the HOPE-4 team coordinated the program from Hamilton, Ontario, Canada. In addition to content on the burden of disease, cardiovascular system pathophysiology, and CVD risk factors, the curriculum also included evaluations such as module tests, in-class exercises, and observed structured clinical examinations, which were administered by the local partner organizations. These evaluations served as indicators of adequate uptake of curriculum content as well as readiness to work as an NPHW in the field. RESULTS: Overall, 51 NPHW successfully completed the training curriculum with an average score of 93.19% on module tests and 84.76% on the observed structured clinical examinations. Since implementation, the curriculum has also been adapted to the World Health Organization's HEARTS Technical Package, which was launched in 2016 to improve management of CVD in primary health care. CONCLUSIONS: The robust curriculum development, testing, and implementation process described affirm that NPHW in diverse settings can be trained in implementing measures for CVD prevention and control. PMID- 29331285 TI - Reply. PMID- 29331284 TI - Effects of an experimental heat wave on fatty acid composition in two Mediterranean seagrass species. AB - Global warming is emerging as one of the most critical threats to terrestrial and marine species worldwide. This study assessed the effects of simulated warming events in culture on two seagrass species, Posidonia oceanica and Cymodocea nodosa, which play a key role in coastal ecosystems of the Mediterranean Sea. Changes in fatty acids as key metabolic indicators were assessed in specimens from two geographical populations of each species adapted to different in situ temperature regimes. Total fatty acid (TFA) content and composition were compared in C. nodosa and P. oceanica from natural populations and following exposure to heat stress in culture. After heat exposure, individuals of C. nodosa and P. oceanica adapted to colder temperatures in situ accumulated significantly more TFA than controls. For both species, the proportion of polyunsaturated fatty acids (PUFA) decreased, and the percentage of saturated fatty acids (SFA) increased significantly after the heat treatment. These results highlight that populations of both species living at warmest temperatures in situ were more thermo-tolerant and exhibited a greater capacity to cope with heat stress by readjusting their lipid composition faster. Finally, exposure of seagrasses to warmer conditions may induce a decrease in PUFA/SFA ratio which could negatively affect their nutritional value and generate important consequences in the healthy state of next trophic levels. PMID- 29331286 TI - Re: Characteristics of a Mild Traumatic Brain Injury Sample Recruited Using Amazon's Mechanical Turk. PMID- 29331287 TI - Characterizing the effects of deep brain stimulation with magnetoencephalography: A review. AB - BACKGROUND: Deep brain stimulation (DBS) is an important form of neuromodulation that is being applied to patients with motor, mood, or cognitive circuit disorders. Despite the efficacy and widespread use of DBS, the precise mechanisms by which it works remain unknown. Over the last decade, magnetoencephalography (MEG) has become an important functional neuroimaging technique used to study DBS. OBJECTIVE: This review summarizes the literature related to the use of MEG to characterize the effects of DBS. METHODS: Peer reviewed literature on DBS-MEG was obtained by searching the publicly accessible literature databases available on PubMed. The abstracts of all reports were scanned and publications which combined DBS-MEG in human subjects were selected for review. RESULTS: A total of 32 publications met the selection criteria, and included studies which applied DBS for Parkinson's disease, dystonia, chronic pain, phantom limb pain, cluster headache, and epilepsy. DBS-MEG studies provided valuable insights into network connectivity, pathological coupling, and the modulatory effects of DBS. CONCLUSIONS: As DBS-MEG research continues to develop, we can expect to gain a better understanding of diverse pathophysiological networks and their response to DBS. This knowledge will improve treatment efficacy, reduce side-effects, reveal optimal surgical targets, and advance the development of closed-loop neuromodulation. PMID- 29331288 TI - Hallux Valgus Evaluation on MRI: Can Measurements Validated on Radiographs Be Used? AB - Hallux valgus (HV) is a common deformity of the great toe affecting >23% of adults in the United States. The severity of the deformity is traditionally analyzed using radiographs to determine measurements such as the HV and intermetatarsal angles. We sought to determine the relationship between the radiographic and magnetic resonance imaging (MRI) measurements because this is not yet known. Two of us analyzed a series of 56 consecutive patients who had had radiographs and MRI performed on the same foot between April 27, 2015 and March 9, 2016 and who satisfied all other inclusion and exclusion criteria (age 18 to 100 years, no history of recent foot trauma, and no metal hardware in the foot). We found excellent interreader reliability (intraclass correlation 0.89 to 0.96) and intermodality agreement (intraclass correlation 0.83 to 0.91). The HV angle measured 15.0 degrees +/- 8.8 degrees on the MRI scans and 13.8 degrees +/- 8.7 degrees on the radiographs (mean difference -1.15 degrees +/- 3.89 degrees ), and the intermetatarsal angle was 9.0 degrees +/- 3.1 degrees on the MRI scans and 8.8 degrees +/- 2.9 degrees on the radiographs (mean difference -0.22 degrees +/- 2.10 degrees ). The HV measurements were reliable on both radiographs and MRI for the range of values tested. Small intermodality statistically significant differences in HV angle measurements were found; however, these might not be enough to be clinically significant. PMID- 29331289 TI - Titanium Scaffolding: An Innovative Modality for Salvage of Failed First Ray Procedures. AB - Shortening of the first ray is a potential complication associated with first metatarsal procedures. Correction of this deformity conventionally has required the use of a tricortical bone graft to lengthen the bone. Graft complications, including donor site morbidity, poor graft stability, and graft resorption, have revealed a need for an alternative procedure. The present report shows that titanium cage scaffolding has lower extremity applications beyond its previous uses in the ankle and spine. Two patients underwent surgical correction for failed first ray procedures using a titanium cage apparatus with a calcaneal autograft and other biologic agents. The scaffolds were appropriately sized to fill the defect. Patients remained non-weightbearing until radiographic evidence of healing appeared. Success was determined by diminished pain, a return to activity, ambulation, and patient satisfaction. Patients exhibited faster-than anticipated healing, including a return to protected weightbearing activities and increased stability within 6 weeks. Titanium cage implants provide long-term stability and resistance to stress and strain in the forefoot. The implant we have described, newly applied to the first ray, is analogous to a system used in salvage of failed ankle replacements. In addition to reducing reliance on the iliac crest bone graft, the titanium cage apparatus is advantageous because it is customized to fill a defect using computed tomography scanning, thereby reducing graft failure secondary to an improper shape. These cases demonstrate the potential beneficial applications for titanium cages in failed first ray reconstruction. PMID- 29331290 TI - The Use of Ultrasonography to Identify the Intersection of the Dorsomedial Cutaneous Nerve of the Hallux and the Extensor Hallucis Longus Tendon: A Cadaveric Study. AB - Terminal branches of the superficial fibular nerve are at risk of iatrogenic damage during foot surgery, including hallux valgus rigidus correction, bunionectomy, cheilectomy, and extensor hallucis longus tendon transfer. One terminal branch, the dorsomedial cutaneous nerve of the hallux, is particularly at risk of injury at its intersection with the extensor hallucis longus tendon. Iatrogenic injuries of the dorsomedial cutaneous nerve of the hallux can result in sensory loss, neuroma formation, and/or debilitating causalgia. Therefore, preoperative identification of the nerve is of great clinical importance. The present study used ultrasonography to identify the intersection between the dorsomedial cutaneous nerve of the hallux and the extensor hallucis longus tendon in cadavers. On ultrasound identification of the intersection, dissection was performed to assess the accuracy of the ultrasound screening. The method successfully pinpointed the nerve in 21 of 28 feet (75%). The sensitivity, positive likelihood ratio, and positive and negative predictive values of ultrasound identification of the junction of the dorsomedial cutaneous nerve and the extensor hallucis longus tendon were 75%, 75%, 100%, and 0%, respectively. We have described an ultrasound protocol that allows for the preoperative identification of the dorsomedial cutaneous nerve of the hallux as it crosses the extensor hallucis longus tendon. The technique could potentially be used to prevent the debilitating iatrogenic injuries known to occur in association with many common foot surgeries. PMID- 29331292 TI - [Ocular melanocytosis]. PMID- 29331291 TI - Global MicroRNA Profiling in Human Bone Marrow Skeletal-Stromal or Mesenchymal Stem Cells Identified Candidates for Bone Regeneration. AB - Bone remodeling and regeneration are highly regulated multistep processes involving posttranscriptional regulation by microRNAs (miRNAs). Here, we performed a global profiling of differentially expressed miRNAs in bone-marrow derived skeletal cells (BMSCs; also known as stromal or mesenchymal stem cells) during in vitro osteoblast differentiation. We functionally validated the regulatory effects of several miRNAs on osteoblast differentiation and identified 15 miRNAs, most significantly miR-222 and miR-423, as regulators of osteoblastogenesis. In addition, we tested the possible targeting of miRNAs for enhancing bone tissue regeneration. Scaffolds functionalized with miRNA nano carriers enhanced osteoblastogenesis in 3D culture and retained this ability at least 2 weeks after storage. Additionally, anti-miR-222 enhanced in vivo ectopic bone formation through targeting the cell-cycle inhibitor CDKN1B (cyclin dependent kinase inhibitor 1B). A number of additional miRNAs exerted additive osteoinductive effects on BMSC differentiation, suggesting that pools of miRNAs delivered locally from an implanted scaffold can provide a promising approach for enhanced bone regeneration. PMID- 29331294 TI - [Study of the results scleral-fixated intraocular lenses in the absence of capsular support]. AB - INTRODUCTION: In the absence of sufficient capsular support, scleral fixation of the intraocular lens is an interesting alternative. The goal is to evaluate this implantation technique when traditional implantation is impossible. PATIENTS AND METHODS: This is an observational, retrospective, monocentric study at the Amiens university medical center between August 2013 and March 2016. Patients all underwent scleral fixation of a three-piece implant without suturing of the haptics, after posterior vitrectomy. All patients requiring implantation in the absence of stable capsular support were included. Patients with adequate iris or capsular support were excluded from our study. RESULTS: Eighteen patients were included, with an average age of 69.3+/-16.9 years. The surgical indications were: complicated surgery, trauma and endothelial decompensation. The preoperative mean corrected visual acuity was 1.2+/-0.4 LogMAR while the postoperative acuity was 0.7+/-0.5 LogMAR. The mean postoperative corneal astigmatism was 1.9+/-1.9 diopters. The main complications observed were ocular hypertension, macular edema, retinal detachment, iris incarceration and exteriorization of the haptic. DISCUSSION: There are two alternatives when faced with lack of a sufficient capsular support: scleral fixation or iris fixation. Our technique is the only one achievable in the presence of iris atrophy. Furthermore, it induces less astigmatism and enables the repositioning of a three piece implant dislocated into the vitreous. CONCLUSION: Scleral fixation is a technique allowing both a satisfactory and a lasting functional result and is to be considered when faced with a lack of sufficient capsular support. PMID- 29331293 TI - Toric lens implantation in cataract surgery: Automated versus manual horizontal axis marking, analysis of 50 cases. AB - SUBJECT: The main objective of our study was to evaluate the contribution of automated conjunctival registration in the alignment of toric intraocular lenses by comparing automated registration optimized with Callisto(r) to manual marking of the horizontal axis. MATERIALS AND METHODS: We performed a prospective, descriptive, monocentric study on patients undergoing cataract surgery with a toric intraocular lens (Asphina 709 Zeiss), performed by a surgeon with good experience in toric implants, between September 2016 and March 2017. We analyzed the agreement between the manual marking of the 0-180 degrees axis versus the one automatically generated by the CallistoTM, as well as the alignment of the IOL and the refractive results at 1 month. RESULTS: We included 50 eyes of 38 patients. The mean corrected astigmatism was 1,9 D. The mean difference between the 2 axes was 4,7 degrees [0-12.3 degrees ]. Only 50 % of the preoperative manual markings were consistent with the automated measurement (<5 degrees ). At one month, the mean rotation recorded was 4,3 degrees [0-29 degrees ]. The alignment was identical for 70 % (n=35) of the IOLs (<=5 degrees ). As for residual subjective astigmatism, the mean was 0.58 D. The mean visual acuity without correction was 8/10 and 55 % saw 10/10 without correction. DISCUSSION: Refractive performance depends on preoperative measurement, correct alignment of the IOL and its stability in the bag. Our study shows the value of automated conjunctival registration in the determination of the intraoperative axis of alignment, even with an experienced surgeon. This precision is essential for a good refractive result, especially since residual astigmatism in the case of misalignment will increase with the power of the implant. CONCLUSION: Our study shows excellent refractive results, regardless of the initial astigmatism, using automated alignment. Precision of toric implantation opens the way to toric multifocal implantation under the best conditions. PMID- 29331295 TI - Helicopter Mountain Rescue in Slovenia from 2011 to 2015. AB - INTRODUCTION: The popularity of adventure recreation in wilderness areas across the world continues to increase. Nevertheless, the risk of injury and illness remains significant. The purpose of this study is to analyze the mountain rescue operations performed in Slovenia between 2011 and 2015. METHODS: This retrospective study reports mountain rescue operations documented by the Slovenian National Mountain Rescue Association. The annual number of ground-based and helicopter-based rescues were identified and compared. For 2015, the indication for rescue and the severity of injury were also analyzed, specifically for interventions requiring the use of a helicopter. RESULTS: From 2011 through 2015, the number of rescues remained consistent with an annual average of 413 (SD +/-15; range, 393-434) rescues. However, the percentage of ground-based rescues varied significantly year by year (P=0.016), with highest rate in 2014 (68%) and the lowest in 2015 (56%). In 2015, 434 mountain rescue operations were reported in Slovenia. Injury accounted for 44%, illness for 10%, and fatality for 9% of the rescues. In 37%, no illness or injury was reported. Helicopter rescue was used in 190 (44%) of all interventions. Among the 190 helicopter rescues, 49% of patients had nonfatal injuries, 29% required no medical treatment, 15% had illness, and 7% had fatal injuries. CONCLUSIONS: A significant number of mountain rescue operations were conducted in Slovenia from 2011 through 2015. Most of these were needed for injured, ill, or deceased persons. A notable number of rescues in 2015 required a helicopter. PMID- 29331296 TI - A Case of Autosplenectomy in Sickle Cell Trait Following an Exposure to High Altitude. AB - A 24-year-old man presented with acute abdominal pain upon ascent to moderate altitude (3500 m). An immediate evaluation revealed a splenic infarct, and he was evacuated to sea level. Upon recovery, he was sent back to 3500 m without detailed etiological evaluation, whereupon he experienced recurrent episodes of left-side subcostal pain. Imaging suggested autosplenectomy, and workup revealed a negative thrombophilia profile but was positive for sickle cell trait (SCT). Individuals with SCT can be asymptomatic until exposure to severe hypoxia, upon which they can manifest clinically as sickle cell syndrome. We discuss the rare presentation of autosplenectomy in a patient with previously undiagnosed SCT on exposure to high altitude. PMID- 29331297 TI - Elevation 3 mm: A Case of a Cardiac Emergency and Rescue on Mount Monadnock. PMID- 29331298 TI - Spatiotemporal characterization of microdamage accumulation in rat ulnae in response to uniaxial compressive fatigue loading. AB - Repetitive fatigue loading can induce microdamage accumulation in bone matrix, which results in impaired mechanical properties and increased fracture susceptibility. However, the spatial distribution and time-variant process of microdamage accumulation in fatigue-loaded skeleton, especially for linear microcracks which are known to initiate bone remodeling, remain not fully understood. In this study, the time-varying process of the morphology and distribution of microcracks in rat ulnae subjected to uniaxial compressive fatigue loading was investigated. Right forelimbs of thirty four-month-old male Sprague-Dawley rats were subjected to one bout of cyclic ramp loading with 0.67 Hz at a normalized peak force of 0.055 N/g body weight for 6000 cycles, and the contralateral left ulnae were not loaded as the control samples. Ten rats were randomly euthanized on Days 3, 5, and 7 post fatigue loading. Our findings via two-dimensional histomorphometric measurements based on basic fuchsin staining and three-dimensional quantifications using contrast-enhanced micro-computed tomography (MicroCT) with precipitated BaSO4 staining demonstrated that the accumulation of linear microcracks (increase in the amount of linear microcracks) on Day 5 was significantly higher than that on Day 3 and Day 7 post fatigue loading. Our histological and histomorphometric results revealed that linear microcrack density (Cr.Dn) in the tensile cortex at Days 3, 5 and 7 post fatigue loading was significantly higher than that in the compressive side, whereas linear microcrack length (Cr.Le) in the tensile cortex at Day 3 was significantly lower than that in the compressive cortex. Our findings revealed that microcrack accumulation exhibited a non-linear time-varying process at 3, 5 and 7 days post axial compressive fatigue loading (with observable peak Cr.Dn at Day 5). Our findings also revealed distinct distribution of microcrack density and morphology in rat ulnae with tensile and compressive strains, as characterized by more microcracks accumulated in tensile cortices, and longer cracks shown in compressive cortices. PMID- 29331299 TI - The regulatory roles of Notch in osteocyte differentiation via the crosstalk with canonical Wnt pathways during the transition of osteoblasts to osteocytes. AB - Osteocytes comprise more than 90% of the cells in bone and are differentiated from osteoblasts via an unknown mechanism. Recently, it was shown that Notch signaling plays an important role in osteocyte functions. To gain insights into the mechanisms underlying the functions of Notch in regulating the transition of osteoblasts to osteocytes, we performed a luciferase assay by cloning the proximal E11 and dentin matrix acidic phosphoprotein 1 (DMP1) promotor regions into pGluc-Basic 2 vectors, which were subsequently transfected into the IDG-SW3 (osteocytes), MC3T3 (osteoblasts) and 293T (non-osteoblastic cells) cell lines. Two approaches were used to activate Notch signaling in vitro. One was a Notch1 extracellular antibody-coated cell culture plate, and the other was transfection of a Hairy/Enhancer of Split 1 (Hes1) overexpression vector. The interaction between the Notch and Wnt signaling pathways was probed by assessing the expression of a series of phosphorylated proteins involved in the cascade of both signaling pathways. Our data suggested that Notch signaling regulates E11 expression through Hes1 activity, while Hes1 solely did not initiate the expression of DMP1. The regulatory function of E11 by Hes1 was not observed in the 293T cell line, indicating a cell context-dependent manner of the Notch signaling pathway. Additionally, we found that Notch inhibited Wnt signaling at the late differentiation stage of osteocytes by both directly repressing phosphorylated Akt and preventing the nuclear aggregation of beta-catenin. These findings provide profound understandings of Notch's regulatory function in osteocyte differentiation. PMID- 29331300 TI - Cigarette smoking and hip volumetric bone mineral density and cortical volume loss in older adults: The AGES-Reykjavik study. AB - This study aimed to explore the relationships of several indicators of cigarette smoking habits (smoking status, pack-years, age at smoking initiation and smoking cessation) with quantitative computed tomographic (QCT)-derived proximal femur bone measures (trabecular vBMD, integral vBMD and the ratio of cortical to total tissue volume (cvol/ivol)) and with subsequent change in these measures over the next five years. A total of 2673 older adults (55.9% women), aged 66-92 years at baseline from the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study, who had two QCT scans of the hip were studied. In multivariable linear regression models, compared to never-smokers, current smokers had lower cvol/ivol at baseline and former-smokers had poorer measures on all outcomes (lower trabecular vBMD, integral vBMD and cvol/ivol), even when adjusted for several potential confounders. Further, among former smokers, those with higher pack-years had worse bone outcomes and those with longer duration since smoking cessation had better bone health at baseline. Analyses of change in bone measures revealed that compared to never-smokers, current smokers had significantly greater loss of trabecular vBMD, integral vBMD, and cvol/ivol. The regression models included adjustment for sex, age, education, and baseline body mass index, creatinine, % weight change from age 50, 25OHD, physical activity level, high-sensitive C Reactive protein levels, alcohol and coffee consumption, history of diabetes mellitus, arthritis, and respiratory diseases. In conclusion, both current and former smoking showed adverse associations with bone health assessed with QCT. Results suggest that current smoking in particular may aggravate the rate of bone loss at older age and highlight implications for targeting this risk factor in populations that present higher smoking prevalence and vulnerability to bone fragility. PMID- 29331302 TI - Bone matrix microdamage and vascular changes characterize bone marrow lesions in the subchondral bone of knee osteoarthritis. AB - INTRODUCTION: Bone marrow lesions (BMLs) in the subchondral bone in osteoarthritis (OA) are suggested to be multifactorial, although the pathogenic mechanisms are unknown. Bone metabolism and cardiovascular risk factors associate with BML in epidemiologic studies. However, there are no studies at the tissue level investigating the relationship between these processes and BML. The aim of this study was to investigate the relationship between BMLs in the tibial plateau (TP) of knee OA and bone matrix microdamage, osteocyte density and vascular changes. METHODS: TP were obtained from 73 patients at total knee replacement surgery and BMLs were identified ex vivo in TP tissue using MRI. Comparator 'No BML' tissue was from matched anatomical sites to the BMLs. Quantitative assessment was made of subchondral bone microdamage, bone resorption indices, osteocyte cellularity, and vascular features. RESULTS: Several key parameters were different between BML and No BML tissue. These included increased microcrack burden (p = .01, p = .0001), which associated positively with bone resorption and negatively with cartilage volume, and greater osteocyte numerical density (p = .02, p = .01), in the subchondral bone plate and subchondral trabeculae, respectively. The marrow tissue within BML zones contained increased arteriolar density (p = .04, p = .0006), and altered vascular characteristics, in particular increased wall thickness (p = .007) and wall:lumen ratio (wall thickness over internal lumen area) (p = .001), compared with No BML bone. CONCLUSIONS: Increased bone matrix microdamage and altered vasculature in the subchondral bone of BMLs is consistent with overloading and vascular contributions to the formation of these lesions. Given the important role of BMLs in knee OA, these contributing factors offer potential targets for the treatment and prevention of knee OA. PMID- 29331303 TI - Clear, professional and accurate communication is key to success in all activities. PMID- 29331301 TI - Marrow adipose tissue imaging in humans. AB - Bone strength is affected not only by bone mineral density (BMD) and bone microarchitecture but also its microenvironment. Recent studies have focused on the role of marrow adipose tissue (MAT) in the pathogenesis of bone loss. Osteoblasts and adipocytes arise from a common mesenchymal stem cell within bone marrow and many osteoporotic states, including aging, medication use, immobility, over - and undernutrition are associated with increased marrow adiposity. Advancements in imaging technology allow the non-invasive quantification of MAT. This article will review magnetic resonance imaging (MRI)- and computed tomography (CT)-based imaging technologies to assess the amount and composition of MAT. The techniques that will be discussed are anatomic T1-weighted MRI, water fat imaging, proton MR spectroscopy, single energy CT and dual energy CT. Clinical applications of MRI and CT techniques to determine the role of MAT in patients with obesity, anorexia nervosa, and type 2 diabetes will be reviewed. PMID- 29331304 TI - Gender Representation in Urologic Subspecialties. AB - OBJECTIVE: To examine associations between urologic subspecialization, surgeon gender and practice patterns among certifying urologists over the last 13 years. MATERIALS AND METHODS: Demographic data of certifying and recertifying urologists (2004 to 2015) were obtained from the American Board of Urology. We investigated gender-specific trends in self-reported practice type (academic practice, private practice), subspecialization, and employment as a full-time vs part-time physician, relative to certification year and cycle. RESULTS: Of 9140 urologists applying for certification or recertification over the study period, 815 (8.9%) were women. The largest proportion of female surgeon candidates (65.0%) was first time certifiers. Women represented 16.7% of first-time certifying urologists (P < .001) and reported practicing in academia more frequently (23.6%) compared with 13.7% of men (P < .001). Female surgeons identified as subspecialists in greater numbers (46.4%) than their male counterparts (23.4%) across all certification years and cycle cohorts (P < .001). Women reported subspecializing in female urology (24.2%) and pediatrics (10.2%) at higher frequencies than their male colleagues (4.6% and 3.1% respectively, both P < .001). Female and male surgeon candidates requested certification in equal proportion in andrology and infertility (P = .83) and endourology (3.6% female vs 5.8% male, P = .13), however differed in oncology (4.2% female vs 7.2% male, P = .001). CONCLUSION: A growing proportion of certifying urologists are women, with the greatest enrichment among those seeking first-time certification. Since 2004, female surgeons account for a disproportionate volume of urologists who practice in the academic setting and identify as subspecialists. PMID- 29331305 TI - TIGAR inhibits ischemia/reperfusion-induced inflammatory response of astrocytes. AB - The inflammatory response of glial cells contributes to neuronal damage or repair after brain ischemia/reperfusion insult. We previously demonstrated a protective role of TP53-induced glycolysis and apoptosis regulator (TIGAR) in ischemic neuronal injury through increasing the flow of pentose phosphate pathway (PPP). The present study investigated the possible role of TIGAR in ischemia/reperfusion induced inflammatory response of astrocytes. Male ICR mice were subjected to middle cerebral artery occlusion for 2 h followed by 24 h reperfusion and cultured primary astrocytes were subjected to oxygen glucose deprivation for 9 h followed by 24 h reoxygenation (OGD/R). Adenoviral vectors were used to alter the levels of TIGAR protein in brain and in culture primary astrocytes. We showed that during the OGD/R insult the protein levels of TIGAR were rapidly increased in astrocytes. Overexpression of TIGAR mediated increased the viability, levels of NADPH and rGSH, and reduced intracellular reactive oxygen species (ROS) in cultured primary astrocytes. Overexpression of TIGAR not only significantly reduced infarct volume after stroke insult but also markedly reduced long-term mortality and improved recovery of neurological functions. Overexpression of TIGAR tempered OGD/R- or ischemia/reperfusion-induced the upregulation of inducible nitric oxide synthase (iNOS), cyclooxygenases COX2 and the release of pro-inflammatory cytokines interleukin 1 beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha), while TIGAR knockdown produced opposite effects on these parameters. Moreover, Overexpression of TIGAR suppressed OGD/R-induced degradation of IkappaBalpha and NF-kappaB nuclear translocation in cultured primary astrocytes. The present study elucidates a novel mechanism by which TIGAR protects neurons against ischemia/reperfusion injury. PMID- 29331306 TI - Primary mucinous eccrine carcinoma of the buccal space: A case report and review of the literature. AB - IMPORTANCE: Mucinous eccrine carcinoma is a rare entity that most commonly affects the head and neck. Due to its low frequency of occurrence, review of its etiology, histopathology, and treatment strategies is beneficial to all clinicians who may encounter similar appearing masses. OBSERVATION: An 84-year old male presented with a blue mass on the left cheek. This mass started as a small bump and grew significantly over one year. His primary care physician monitored its growth and ultimately referred to an otolaryngologist. Imaging findings revealed a multi-lobular solid and cystic left buccal lesion. FNA was suggestive of low grade mucoepidermoid carcinoma. INTERVENTION: Patient underwent surgical excision with primary closure of the defect. Frozen section was consistent with low grade salivary malignancy. Final pathology revealed primary mucinous eccrine carcinoma of the skin. CONCLUSIONS AND RELEVANCE: Mucinous eccrine carcinoma is a rare entity commonly seen in the head and neck region. Mucinous deposits to the skin from primaries elsewhere in the body are much more common than primary lesions of the skin. Histology is a key component of the diagnosis but full oncologic workup is required. Treatment typically includes wide local excision with possible adjuvant chemotherapy or radiation for high risk features. PMID- 29331308 TI - A tribute in life to the world icon of the cardiology of heights: Dr. Dante Penaloza from Peru. PMID- 29331307 TI - Risk factors of sensorineural hearing loss in patients with unilateral safe chronic suppurative otitis media. AB - PURPOSE: Chronic suppurative otitis media (CSOM) is the major cause of hearing impairment, especially conductive hearing loss. Few patients also had sensorineural component, the sensorineural hearing loss (SNHL) in CSOM is controversial, especially for safe mucosal type. This study aims to assess the relationship between the frequency of SNHL development in patients with safe mucosal CSOM and its relation to patient's age, sex, duration of disease, size of perforation and different audiological findings. MATERIAL AND METHODS: This is a prospective study conducted from June 2016 to June 2017 in a tertiary referral hospital. 200 patients with unilateral mucosal type of CSOM with normal contralateral ear were included in the study. The diseased ears were taken as study ears and normal ears as control ears in all patients. Detailed otologic history, clinical and audiometric findings were recorded and analyzed. Results were statistically compared in all patients for both study and control ears using different parameters. RESULTS: Twenty patients had an average bone conduction threshold of all frequencies above 25dB, which implies SNHL (10%). The incidence of SNHL was statistically significant at higher speech frequencies. The incidence increased with the presence of Diabetes Mellitus, smoking, duration of disease, presence of active discharge and the increase in size of perforation. However, it is not age dependent and there was no difference between males and females. CONCLUSION: Safe mucosal CSOM can cause SNHL with multiple predisposing factors. PMID- 29331309 TI - What is the predictive value of ST segment depression in inferior leads in first acute anterior myocardial infarction? AB - BACKGROUND: Electrical phenomenon and remote myocardial ischemia are the main factors of ST segment depression in inferior leads in acute anterior myocardial infarction (AAMI). We investigated the prognostic value of the sum of ST segment depression amplitudes in inferior leads in patients with first AAMI treated with primary percutaneous coronary intervention. (PPCI). METHODS: In this prospective analysis, we evaluated the in-hospital prognostic impact of the sum of ST segment depression in inferior leads on 206 patients with first AAMI. Patients were stratified by tertiles of the sum of admission ST segment depression in inferior leads. Clinical outcomes were compared between those tertiles. RESULTS: Univariate analysis revealed higher rate of in-hospital death for patients with ST segment depression in inferior leads in tertile 3, as compared to patients in tertile 1 (OR 9.8, 95% CI 1.5-78.2, p<0.001). After adjustment for baseline variables, ST segment depression in inferior leads in tertile 3 was associated with 5.7-fold hazard of in-hospital death (OR: 5.7, 95% CI 1.2-35.1, p<0.001). Spearman rank correlation test revealed correlation between the sum of ST segment depression amplitude in inferior leads and the sum of ST segment elevation amplitude in V1-6, L1 and aVL. Multivessel disease and additional RCA stenosis were also detected more often in tertile 3. CONCLUSION: The sum of ST segment depression amplitude in inferior leads of admission ECG in patients with first AAMI treated with PPCI provide an independent prognostic marker of in-hospital outcomes. Our data suggest the sum of ST segment depression amplitude to be a simple, feasible and clinically applicable tool for rapid risk stratification in patients with first AAMI. PMID- 29331310 TI - Blood eosinophil counts as a guide for COPD treatment strategies. PMID- 29331311 TI - Prediction of mortality in patients with chronic obstructive pulmonary disease with the new Global Initiative for Chronic Obstructive Lung Disease 2017 classification: a cohort study. AB - BACKGROUND: The Global Initiative for Chronic Obstructive Lung Disease (GOLD) 2017 classification separates the spirometric 1-4 staging from the ABCD groups defined by symptoms and exacerbations. Little is known about how this new classification predicts mortality in patients with chronic obstructive pulmonary disease (COPD). We aimed to establish the predictive ability of the GOLD 2017 classification, compared with earlier classifications, for all-cause and respiratory mortality, both when using its main ABCD groups and when further subdividing according to spirometric 1-4 staging. METHODS: In this nationwide cohort study, we enrolled patients with COPD with data available in the Danish registry for COPD. To be included in this registry, individuals must have been outpatients in hospital-based pulmonary clinics in Denmark. Eligible patients were aged 30 years or older; had received a primary diagnosis of COPD (International Classification of Diseases [ICD]-10 J44.X) or acute respiratory failure (ICD-10 J96.X) in combination with COPD (ICD-10 J44.X) as a secondary diagnosis; and had complete data on FEV1, body-mass index, modified Medical Research Council dyspnoea scale score, and smoking status. We categorised eligible patients with complete data according to the 2007, 2011, and 2017 GOLD classifications at the first contact with an outpatient clinic. For the GOLD 2017 classification, we further subdivided the patients by spirometry into 16 subgroups (1A to 4D). We calculated adjusted hazard ratios (HRs) for all-cause and respiratory mortality and compared the predictive ability of the three GOLD classifications (2007, 2011, and 2017) using receiver operating curves. FINDINGS: We enrolled 33 765 patients with COPD, who were outpatients in Danish hospitals between Jan 1, 2008, and Nov 30, 2013, in the main cohort assessed for all-cause mortality. 22 621 of these patients had data available on cause-specific mortality (respiratory) and were included in a subcohort followed from Jan 1, 2008, to Dec 31, 2011. For the GOLD 2017 classification, 3 year mortality increased with increasing exacerbations and dyspnoea from group A (all-cause mortality 10.0%, respiratory mortality 3.0%) to group D (all-cause mortality 36.9%, respiratory mortality 18.0%). However, 3 year mortality was higher for group B patients (all-cause mortality 23.8%, respiratory mortality 9.7%) than for group C patients (all-cause mortality 17.4%, respiratory mortality 6.4%). Compared with group A, adjusted HRs for all-cause mortality ranged from 2.05 (95% CI 1.87-2.26) for group B, to 1.47 (1.31-1.65) for group C, and to 3.01 (2.75 3.30) for group D. Area under the curve for all-cause mortality was 0.61 (95% CI 0.60-0.61) for GOLD 2007, 0.61 (0.60-0.62) for GOLD 2011, and 0.63 (0.53-0.73) for GOLD 2017. Area under the curve for respiratory mortality was 0.64 (0.62 0.65) for GOLD 2007, 0.63 (0.62-0.64) for GOLD 2011, and 0.65 (0.53-0.78) for GOLD 2017. The GOLD 2017 classification based on ABCD groups only did not predict mortality better than the earlier 2007 and 2011 GOLD classifications. However, when 16 subgroups (1A to 4D) were defined, the new classification predicted mortality more accurately than the previous systems (p<0.0001). INTERPRETATION: We showed that the new GOLD 2017 ABCD classification does not predict all-cause and respiratory mortality more accurately than the previous GOLD systems from 2007 and 2011. FUNDING: Danish Lung Association, Program for Clinical Research Infrastructure. PMID- 29331312 TI - Brighter than GOLD. PMID- 29331313 TI - Predictors of exacerbation risk and response to budesonide in patients with chronic obstructive pulmonary disease: a post-hoc analysis of three randomised trials. AB - BACKGROUND: The peripheral blood eosinophil count might help identify those patients with chronic obstructive pulmonary disease (COPD) who will experience fewer exacerbations when taking inhaled corticosteroids (ICS). Previous post-hoc analyses have proposed eosinophil cutoffs that are both arbitrary and limited in evaluating complex interactions of treatment response. We modelled eosinophil count as a continuous variable to determine the characteristics that determine both exacerbation risk and clinical response to ICS in patients with COPD. METHODS: We analysed data from three AstraZeneca randomised controlled trials of budesonide-formoterol in patients with COPD with a history of exacerbations and available blood eosinophil counts. Patients with any history of asthma were excluded. Negative binomial regression analysis was done using splines for modelling of continuous variables to study the primary outcome of annual exacerbation rate adjusted for exposure time and study design. The trials are registered with ClinicalTrials.gov, NCT00206167, NCT00206154, and NCT00419744. FINDINGS: 4528 patients were studied. A non-linear increase in exacerbations occurred with increasing eosinophil count in patients who received formoterol alone. At eosinophil counts of 0.10 * 109 cells per L or more, a significant treatment effect was recorded for exacerbation reduction with budesonide formoterol compared with formoterol alone (rate ratio 0.75, 95% CI 0.57-0.99; pinteraction=0.015). Interactions were observed between eosinophil count and the treatment effects of budesonide-formoterol over formoterol on St George's Respiratory Questionnaire (pinteraction=0.0043) and pre-bronchodilator FEV1 (linear effect p<0.0001, pinteraction=0.067). Only eosinophil count and smoking history were independent predictors of response to budesonide-formoterol in reducing exacerbations (eosinophil count, pinteraction=0.013; smoking history, pinteraction=0.015). INTERPRETATION: In patients with COPD treated with formoterol, blood eosinophil count predicts exacerbation risk and the clinical response to ICS. FUNDING: AstraZeneca. PMID- 29331314 TI - Chloroquine inhibits autophagy and deteriorates the mitochondrial dysfunction and apoptosis in hypoxic rat neurons. AB - AIMS: Mitochondrial dysfunction (MD) and apoptosis in the neurons are associated with neonatal hypoxic-ischemic (HI) encephalopathy (HIE). The present study was to explore the influence of autophagy on the induction of MD and apoptosis in the neurons in a neonatal HIE rats and in hypoxia-treated neurons in vitro. MATERIALS AND METHODS: Ten-day-old HI rat pups were sacrificed for brain pathological examination and immunohistochemical analysis. The induction of autophagy, apoptosis and MD were also determined in the neurons under hypoxia, with or without autophagy inhibitor, chloroquine (CQ) treatment. KEY FINDINGS: HI treatment caused atrophy and apoptosis of neurons, with a significantly increased levels of apoptosis- and autophagy-associated proteins, such as cleaved caspase 3 and the B subunit of autophagy-related microtubule-associated protein 1 light chain 3 (LC3-B). in vitro experiments demonstrated that the hypoxia induced autophagy in neurons, as was inhibited by CQ. The hypoxia-induced cytochrome c release, cleaved caspase 3 and cleaved caspase 9 were aggravated by CQ. Moreover, there were higher levels of reactive oxygen species, more mitochondrial superoxide and less mitochondrial membrane potential in the CQ-treated neurons under hypoxia than in the neurons singularly under hypoxia. SIGNIFICANCE: Apoptosis and autophagy were induced in HI neonatal rat neurons, autophagy inhibition deteriorates the hypoxia-induced neuron MD and apoptosis. It implies a neuroprotection of autophagy in the hypoxic-ischemic encephalopathy. Administration of autophagy inducer agents might be promising in HIE treatment. PMID- 29331315 TI - Ethnobotany, phytochemistry and pharmacology of Arctotis arctotoides (L.f.) O. Hoffm.: A review. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Arctotis arctotoides (Asteraceae) is part of the genus Arctotis. Arctotis is an African genus of approximately 70 species that occur widely in the African continent with diverse medicinal values. This plant is used for the treatment of indigestion and catarrh of the stomach, epilepsy, topical wounds and skin disorders among the ethnic groups in South Africa and reported to have a wide spectrum of pharmacological properties. AIM OF THE REVIEW: The aim of the present review is to appraise the botany, traditional uses, phytochemistry, pharmacological potential, analytical methods and safety issues of A. arctotoides. Additionally, this review will help to fill the existing gaps in knowledge and highlight further research prospects in the field of phytochemistry and pharmacology. MATERIALS AND METHODS: Information on A. arctotoides was collected from various resources, including books on African medicinal herbs and Zulu medicinal plants, theses, reports and the internet databases such as SciFinder, Google Scholar, Pubmed, Scopus, Web of Science, and Mendeley by using a combination of various meaningful keywords. This review surveys the available literature of the species from 1962 to April 2017. RESULTS: In vitro and in vivo studies of the medicinal properties of A. arctotoides were reviewed. The main isolated and identified compounds were reported as sesquiterpenes, farnesol derivatives, germacranolide, guaianolides and some steroids, of which, nine were reported as antimicrobial. Monoterpenoids and sesquiterpenoids were the predominant essential oil compound classes of the leaves, flowers, stems and roots. The present review revealed potential pharmacological properties such as anti-oxidant, antibacterial, antifungal and anticancer activities of plant extracts as well as isolated compounds. Moreover, the review reports the safety profile (toxicity) of the crude extracts that had been screened on brine shrimps, rats and human cell lines. CONCLUSIONS: The present review has focused on the phytochemistry, botany, ethnopharmacology, biological activities and toxicological information of A. arctotoides. On the basis of reported data, A. arctotoides has emerged as a good source of natural medicine for the treatment of microbial infections, skin diseases, anti inflammatory and anticancer agents and also provides new insights for further isolation of new bioactive compounds, especially the discovery of antimicrobial, anti-inflammatory and anticancer novel therapeutic lead drug molecules. Additionally, intensive investigations regarding pharmacological properties, safety assessment and efficacy with their mechanism of action could be future research interests before starting clinical trials for medicinal practices. PMID- 29331317 TI - Resting-state quantitative EEG characteristics of insomniac patients with depression. AB - Insomnia is known to show hyperarousal in the central nervous system. However, depression that often coexists with insomnia exhibits hypo-activity in the frontal lobe, which is very different from insomnia. In the present study, we examined wake resting state EEG of insomniac patients with depression to investigate whether they could be conceptualized as spectrum of insomnia or significantly different from insomnia. We compared the absolute power values of EEG spectra of three groups: 15 insomniacs with comorbid depression (CD), age- and sex-matched 15 comorbid-free insomniacs (CFI), and 15 good sleep controls (GSC). As a result, CD and CFI showed no significant difference in the EEG power spectrum analysis. Compared with GSC, however, both CD and CFI groups showed increased high frequency EEG amplitude. From these results, we have confirmed that CD shows cortical hyperarousal similar to insomnia in the daytime resting state. In conclusion, it would be reasonable to understood insomniac patients experiencing depression as a continuum of insomnia patients. PMID- 29331316 TI - Pharmacological activities of the organic extracts and fatty acid composition of the petroleum ether extract from Haplophyllum tuberculatum leaves. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Haplophyllum tuberculatum is used in traditional medicine to treat many disorders including inflammation and pain. The aim of this study is to investigate the organic extracts from H. tuberculatum leaves against inflammation, gastric ulcer and pain. MATERIALS AND METHODS: Acute toxicity was studied in vivo to determine the toxic doses of the organic extracts. Anti inflammatory activity was also evaluated in vivo using carrageenan-induced paw edema in Wistar rats. Gastroprotective activity was tested using the HCl/ethanol induced gastric ulcer test in rats. Peripheral and central analgesic activities were assessed using the acetic acid-induced writhing test and the hot-plate method, respectively. The chemical composition of the fatty acids in the petroleum ether (PE) extract was determined with GC-MS. RESULTS: At 25, 50 and 100mg/kg PE extract was the most active against inflammation. Percentages inhibition 5h after carrageenan-injection were 51.12; 86.71% and 96.92%, respectively. The same extract at 100mg/kg showed good analgesic activities using the acetic acid-induced writhing test and the hot-plate method. The chloroform, ethyl acetate (EtOAc) and butanolic (n-BuOH) extracts exhibited strong anti inflammatory, gastroprotective and analgesic activities at 100mg/kg. The GC-FID analysis revealed that the PE extract was rich in gamma-linolenic acid (45.50%) followed by palmitic acid (18.48%), linoleic acid (10.73%), erucic acid (4.72), stearic acid (3.96%) and oleic acid (2.57%). CONCLUSION: The results of the present study support the traditional use of the leaves of H. tuberculatum and may possibly serve as prospective material for further development of safe new phytochemical anti-inflammatory, gastroprotective and/or analgesic agents. PMID- 29331319 TI - A histopathological and biochemical evaluation of oxidative injury in the sciatic nerves of male rats exposed to a continuous 900-megahertz electromagnetic field throughout all periods of adolescence. AB - The effects on human health of the electromagnetic field (EMF) emitted by mobile phones, used by approximately 7 billion people worldwide, have become an important subject for scientific research. Studies have suggested that the EMF emitted by mobile phones can cause oxidative stress in different tissues and age groups. Young people in adolescence, a time period when risky behaviors and dependences increase, use mobile phones more than adults. The EMF emitted by mobile phones, which are generally carried in the pocket or in bags when not in use, will very probably affect the sciatic nerve. No previous study has investigated the effect of mobile phone use in adolescence on peripheral nerve. This study was planned accordingly. Twenty-four male Sprague Dawley rats aged 21 days were divided equally into control (CGr), Sham (SGr) and EMF (EMFGr) groups. No procedure was performed on CGr rats. EMFGr were exposed to the effect of a 900 megahertz (MHz) EMF for 1 h at the same time every day between postnatal days 21 59 (the entire adolescent period) inside a cage in the EMF apparatus. SGr rats were placed inside the cage for 1 h every day without being exposed to EMF. All rats were sacrificed at the end of the study period, and 1 cm sections of sciatic nerve were extracted. Malondialdehyde (MDA), glutathione, catalase (CAT) superoxide dismutase (SOD) values were investigated biochemically in half of the right sciatic nerve tissues. The other halves of the nerve tissues were subjected to routine histopathological tissue procedures, sectioned and stained with hematoxylin and eosin (H&E) and Masson's trichrome. Histopathological evaluation of slides stained with Masson's trichrome and H&E revealed a normal appearance in Schwann cells and axons in all groups. However, there was marked thickening in the epineurium of sciatic nerves from EMFGr rats. MDA, SOD and CAT levels were higher in EMFGr than in CGr and SGr at biochemical analyses. Apoptotic index (AI) analysis revealed a significant increase in the number of TUNEL (+) cells when EMFGr was compared with CGr and SGr. In conclusion, our study results suggest that continuous exposure to a 900-MHz EMF for 1 h throughout adolescence can cause oxidative injury and thickening in the epineurium in the sciatic nerve in male rats. PMID- 29331318 TI - Developmental changes in the feedback related negativity from 8 to 14 years. AB - The study examined age related changes in the magnitude of the Feedback Related Negativity (FRN) in 8-14 year old children performing a variation of a Go/No-Go task. Participants were presented with four stimuli and tasked with mapping each of them either to a response or to a "no response" by trial and error guided by feedback. Feedback was valid for two stimuli (Go and No-Go) and invalid (.5 positive; .5 negative feedback) for the other two stimuli. The amplitude of the FRN was evaluated as a function of age separately for Go and No-Go trials. The results indicated that while performance on valid Go trials improved with age, accuracy on valid No-Go trials remained stable with age. FRN amplitude was found to be inversely related to age such that smaller FRN amplitudes were observed in older children even after controlling for variance in learning. Additionally, the FRN was found as a predictor of post-learning performance on Go trials but not on No-Go trials, regardless of age. These results do not provide support to the link between the FRN and inhibition control as measured by No-Go performance, but do suggest a link with other executive control abilities called for by the Go condition. PMID- 29331321 TI - This Month in AJP. AB - The following highlights summarize research articles that are published in the current issue of The American Journal of Pathology. PMID- 29331320 TI - Zika, dengue and yellow fever viruses induce differential anti-viral immune responses in human monocytic and first trimester trophoblast cells. AB - Zika virus (ZIKV) is a mosquito-borne flavivirus associated with severe neonatal birth defects, but the causative mechanism is incompletely understood. ZIKV shares sequence homology and early clinical manifestations with yellow fever virus (YFV) and dengue virus (DENV) and are all transmitted in urban cycles by the same species of mosquitoes. However, YFV and DENV have been rarely reported to cause congenital diseases. Here, we compared infection with a contemporary ZIKV strain (FSS13025) to YFV17D and DENV-4 in human monocytic cells (THP-1) and first-trimester trophoblasts (HTR-8). Our results suggest that all three viruses have similar tropisms for both cells. Nevertheless, ZIKV induced strong type 1 IFN and inflammatory cytokine and chemokine production in monocytes and peripheral blood mononuclear cells. Furthermore, ZIKV infection in trophoblasts induced lower IFN and higher inflammatory immune responses. Placental inflammation is known to contribute to the risk of brain damage in preterm newborns. Inhibition of toll-like receptor (TLR)3 and TLR8 each abrogated the inflammatory cytokine responses in ZIKV-infected trophoblasts. Our findings identify a potential link between maternal immune activation and ZIKV-induced congenital diseases, and a potential therapeutic strategy that targets TLR mediated inflammatory responses in the placenta. PMID- 29331322 TI - Expression level of risk genes of MHC class II is a susceptibility factor for autoimmunity: New insights. AB - To date, the study of the impact of major hystocompatibility complex on autoimmunity has been prevalently focused on structural diversity of MHC molecules in binding and presentation of (auto)antigens to cognate T cells. Recently, a number of experimental evidences suggested new points of view to investigate the complex relationships between MHC gene expression and the individual predisposition to autoimmune diseases. Irrespective of the nature of the antigen, a threshold of MHC-peptide complexes needs to be reached, as well as a threshold of T cell receptors engaged is required, for the activation and proliferation of autoantigen-reactive T cells. Moreover, it is well known that increased expression of MHC class II molecules may alter the T cell receptor repertoire during thymic development, and affect the survival and expansion of mature T cells. Many evidences confirmed that the level of both transcriptional and post-transcriptional regulation are involved in the modulation of the expression of MHC class II genes and that both contribute to the predisposition to autoimmune diseases. Here, we aim to focus some of these regulative aspects to better clarify the role of MHC class II genes in predisposition and development of autoimmunity. PMID- 29331323 TI - Regulation of inflammatory factors by double-stranded RNA receptors in breast cancer cells. AB - Malignant cells are not the only components of a tumor mass since other cells (e.g., fibroblasts, infiltrating leukocytes and endothelial cells) are also part of it. In combination with the extracellular matrix, all these cells constitute the tumor microenvironment. In the last decade the role of the tumor microenvironment in cancer progression has gained increased attention and prompted efforts directed to abrogate its deleterious effects on anti-cancer therapies. The immune system can detect and attack tumor cells, and tumor infiltrating lymphocytes (particularly CD8 T cells) have been associated with improved survival or better response to therapies in colorectal, melanoma, breast, prostate and ovarian cancer patients among others. Contrariwise, tumor associated myeloid cells (myeloid-derived suppressor cells [MDSCs], dendritic cells [DCs], macrophages) or lymphoid cells such as regulatory T cells can stimulate tumor growth via inhibition of immune responses against the tumor or by participating in tumor neoangiogenesis. Herewith we analyzed the chemokine profile of mouse breast tumors regarding their capacity to generate factors capable of attracting and sequestering DCs to their midst. Chemoattractants from tumors were investigated by molecular biology and immunological techniques and tumor infiltrating DCs were investigated for matched chemokine receptors. In addition, we investigated the inflammatory response of breast cancer cells, a major component of the tumor microenvironment, to double-stranded RNA stimulation. By using molecular biology techniques such as qualitative and quantitative PCR, PCR arrays, and immunological techniques (ELISA, cytokine immunoarrays) we examined the effects of dsRNA treatment on the cytokine secretion profiles of mouse and human breast cancer cells and non-transformed cells. We were able to determine that tumors generate chemokines that are able to interact with receptors present on the surface of tumor infiltrating DCs. We observed that PRR signaling is able to modify the production of chemokines by breast tumor cells and normal breast cells, thereby constituting a possible player in shaping the profile of the leukocyte population in the TME. PMID- 29331324 TI - Rectal culture-directed antibiotic prophylaxis before transrectal prostate biopsy: Reduced infectious complications and healthcare costs. AB - BACKGROUND: Transrectal ultrasound-guided prostate biopsy (TUPB) is associated with infectious complications (ICs), which are related to a greater prevalence of ciprofloxacin-resistant bacteria (CRB) in rectal flora. We examined the ICs that occurred in 2 groups: A guided antibiotic prophylaxis (GP) group and an empiric prophylaxis (EP) group. We assessed the financial impact of GP. MATERIAL AND METHODS: The GP group was studied prospectively (June 2013 to July 2014). We collected rectal cultures (RCs) before the TUPB, which were seeded on selective media with ciprofloxacin to determine the presence of CRB. The patients with sensitive bacteria were administered ciprofloxacin. Patients with resistant bacteria were administered GP according to the RC antibiogram. The EP group was studied retrospectively (January 2011 to June 2009). RCs were not performed, and all patients were treated with ciprofloxacin as prophylaxis. The ICs in both groups were recorded during a period no longer than 30 days following TUPB (electronic medical history). RESULTS: Three hundred patients underwent TUPB, 145 underwent GP, and 155 underwent EP. In the GP group, 23 patients (15.86%) presented CRB in the RCs. Only one patient (0.7%) experienced a UTI. In the EP group, 26 patients (16.8%) experienced multiple ICs (including 2 cases of sepsis) (P<.005). The estimated total cost, including the management of the ICs, was ?57,076 with EP versus ?4802.33 with GP. The average cost per patient with EP was ?368.23 versus ?33.11 with GP. GP achieved an estimated total savings of ?52,273.67. Six patients had to undergo GP to prevent an IC. CONCLUSIONS: GP is associated with a marked decrease in the incidence of ICs caused by CRB and reduced healthcare costs. PMID- 29331325 TI - E-Health Care: Promise or Peril for Chronic Illness. PMID- 29331326 TI - Cryptorchidism in Sweden: A Nationwide Study of Prevalence, Operative Management, and Complications. AB - OBJECTIVES: To review the cumulative prevalence, operative management, and complications of treatment for cryptorchidism in Sweden. STUDY DESIGN: A nationwide observational study from longitudinal register data of all Swedish born boys 0-18 years of age, diagnosed with cryptorchidism from 2001 to 2014. Primary outcomes were occurrence and age at primary surgery. Secondary outcomes included type of procedure and surgical site infection. RESULTS: Of 20 375 boys diagnosed with cryptorchidism in 2001-2014, 12 766 were surgically treated. The cumulative childhood prevalence was 1.8% (95% CI, 1.5-2.0), with a higher prevalence in boys born prematurely, small for gestational age, or with low birth weight. The median age at treatment decreased from 6.2 years in 2001 to 3.4 years in 2014 (P < .001). Still, 94.1% (95% CI, 92.7-95.6) had surgery after the recommended 1 year of age in 2014. Variations in age at surgery between Swedish counties were great (range, 2.9-5.9 years of age). There were no deaths within 30 days after surgery and the frequency of surgical site infection was low (1.4%; 95% CI, 1.1-1.6). CONCLUSIONS: The cumulative childhood prevalence of cryptorchidism was high, and complications were rare. Few boys underwent surgery in a timely manner according to clinical guidelines, and standards of care varied considerably across the country. Further research and collective actions are needed to improve the detection and management of congenital cryptorchidism. PMID- 29331328 TI - Pilot Clinical Trial of High-Flow Oxygen Therapy in Children with Asthma in the Emergency Service. AB - OBJECTIVES: To assess the efficacy of high-flow nasal cannula (HFNC) oxygen therapy and safety in children with asthma and moderate respiratory failure in the emergency department (ED). STUDY DESIGN: This was a prospective randomized pilot trial of children (aged 1-14 years) presenting to a tertiary academic pediatric ED with moderate-to-severe asthma exacerbations between September 2012 and December 2015. Patients with a pulmonary score (PS) >=6 or oxygen saturation <94% with a face mask despite initial treatment (salbutamol/ipratropium bromide and corticosteroids) were randomized to HFNC or to conventional oxygen therapy. Pharmacologic treatment was at the discretion of attending physicians. The primary outcome was a decrease in PS >=2 in the first 2 hours. Secondary outcomes included disposition, length of stay, and need for additional therapies. RESULTS: We randomly allocated 62 children to receive either HFNC (n = 30) or standard oxygen therapy (n = 32). Baseline patient characteristics were similar in the 2 groups. At 2 hours after the start of therapy, PS had decreased by >=2 points in 16 patients in the HFNC group (53%) compared with 9 controls (28%) (P = .01). Between-group differences in disposition, length of stay, and need for additional therapies were not significant. No side effects were reported. CONCLUSION: HFNC appears to be superior to conventional oxygen therapy for reducing respiratory distress within the first 2 hours of treatment in children with moderate-to severe asthma exacerbation refractory to first-line treatment. Further studies are needed to demonstrate its overall efficacy in the management of asthma and respiratory failure in the ED. TRIAL REGISTRATION: EudraCT: 2012-001771-36. PMID- 29331327 TI - A New Approach to Rare Diseases of Children: The Undiagnosed Diseases Network. PMID- 29331329 TI - Terra Firma-Forme Dermatosis. PMID- 29331330 TI - PC-FACS. AB - PC-FACS (Fast Article Critical Summaries for Clinicians in Palliative Care) provides hospice and palliative care clinicians with concise summaries of the most important findings from more than 100 medical and scientific journals. If you have colleagues who would benefit from receivingPC-FACS, please encourage them to join the AAHPM at aahpm.org. Comments from readers are welcomed at pc facs@aahpm.org. PMID- 29331332 TI - HIV infection and its effects on the development of autoimmune disorders. AB - More than 35 years have elapsed since the initial outbreak of the HIV/AIDS epidemic and the status of a considerable number of patients has changed from a fatal disorder to a chronic one where comorbidities including sarcoidosis and autoimmune diseases have become relevant and dominant. HIV targets the immune system leading to a state of immunodeficiency in a setting of immune activation in which CD4+ T cell depletion plays a critical role. The onset, natural history and course of HIV-associated autoimmune disease has dramatically changed according to the stage of HIV infection and since the introduction of combined anti-retroviral therapy. There are some issues that need further study regarding therapy, especially when immunosuppressive drugs and biologic agents are under consideration. Currently, biologic agents and others immunosuppressive agents are recommended when patients have CD4+ T cell counts above 200 cells/mm3 and the HIV viral activity is completely suppressed. PMID- 29331334 TI - The Future of Our Specialty: Elevating Gynecologic Surgery. PMID- 29331333 TI - Influences of conformations of peptides on stereoinversions and/or isomerizations of aspartic acid residues. AB - Recently, non-enzymatic stereoinversions of aspartic acid (Asp) residues in proteins and peptides have been reported. Here, we performed replica exchange molecular dynamics (REMD) simulations of model peptides (exon 6, 26A-1, and 26A 2) extracted from elastin to investigate their structural features, thereby revealing the factor that influences stereoinversions. For REMD trajectories, we calculated distances between carboxyl carbon in Asp and amide nitrogen in the (n + 1) residue (CN distances). Because bond formation between carbon and nitrogen is indispensable to the formation of a succinimide intermediate the distance between them seems to play an important role in stereoinversion. Moreover, we calculated polar surface areas (PSAs) for the trajectories, finding that CN distances and PSA were different for each peptide, with the longest CN distance and smallest PSA observed for exon 6 peptide, where stereoinversion of Asp is the slowest. Although the average CN distance was shorter for exon 26A-1 peptide than for exon 26A-2 peptide, the number of conformations with CN distances <3.0 A was greater for exon 26A-2 peptide than for exon 26A-1 peptide. Furthermore, PSA for amide nitrogen of the (n + 1) residue was larger for exon 26A-2 peptide than for exon 26A-1 peptide. These results indicated that the flexibility of Asp and (n + 1) residues and hydrophilicity of peptides, especially in the (n + 1) residue, play important roles in the stereoinversion of Asp. This article is part of a Special Issue entitled: D-Amino acids: biology in the mirror, edited by Dr. Loredano Pollegioni, Dr. Jean-Pierre Mothet and Dr. Molla Gianluca. PMID- 29331331 TI - Interaction of ceramides and tear lipocalin. AB - The distribution of lipids in tears is critical to their function. Lipids in human tears may retard evaporation by forming a surface barrier at the air interface. Lipids complexed with the major lipid binding protein in tears, tear lipocalin, reside in the bulk (aqueous) and may have functions unrelated to the surface. Many new lipids species have been revealed through recent mass spectrometric studies. Their association with lipid binding proteins has not been studied. Squalene, (O-acyl) omega-hydroxy fatty acids (OAHFA) and ceramides are examples. Even well-known lipids such as wax and cholesteryl esters are only presumed to be unbound because extracts of protein fractions of tears were devoid of these lipids. Our purpose was to determine by direct binding assays if the aforementioned lipids can bind tear lipocalin. Lipids were screened for ability to displace DAUDA from tear lipocalin in a fluorescence displacement assay. Di- and tri-glycerides, squalene, OAHFA, wax and cholesterol esters did not displace DAUDA from tear lipocalin. However, ceramides displaced DAUDA. Apparent dissociation constants for ceramide-tear lipocalin complexes using fluorescent analogs were measured consistently in the submicromolar range with 3 methods, linear spectral summation, high speed centrifugal precipitation and standard fluorescence assays. At the relatively small concentrations in tears, all ceramides were complexed to tear lipocalin. The lack of binding of di- and tri glycerides, squalene, OAHFA, as well as wax and cholesterol esters to tear lipocalin is consonant with residence of these lipids near the air interface. PMID- 29331335 TI - Corrigendum to "A review of postoperative pain assessment records of nurses?" [Applied Nursing Research 38C (2017) 1-4]. PMID- 29331336 TI - UDP-sugar accumulation drives hyaluronan synthesis in breast cancer. AB - Increased uptake of glucose, a general hallmark of malignant tumors, leads to an accumulation of intermediate metabolites of glycolysis. We investigated whether the high supply of these intermediates promotes their flow into UDP-sugars, and consequently into hyaluronan, a tumor-promoting matrix molecule. We quantified UDP-N-Acetylglucosamine (UDP-GlcNAc) and UDP-glucuronic acid (UDP-GlcUA) in human breast cancer biopsies, the levels of enzymes contributing to their synthesis, and their association with the hyaluronan accumulation in the tumor. The content of UDP-GlcUA was 4 times, and that of UDP-GlcNAc 12 times higher in the tumors as compared to normal glandular tissue obtained from breast reductions. The surge of UDP-GlcNAc correlated with an elevated mRNA expression of glutamine-fructose-6 phosphate aminotransferase 2 (GFAT2), one of the key enzymes in the biosynthesis of UDP-GlcNAc, and the expression of GFAT1 was also elevated. The contents of both UDP-sugars strongly correlated with tumor hyaluronan levels. Interestingly, hyaluronan content did not correlate with the mRNA levels of the hyaluronan synthases (HAS1-3), thus emphasizing the role of the UDP-sugar substrates of these enzymes. The UDP-sugars showed a trend to higher levels in ductal vs. lobular cancer subtypes. The results reveal for the first time a dramatic increase of UDP-sugars in breast cancer, and suggest that their high supply drives the accumulation of hyaluronan, a known promoter of breast cancer and other malignancies. In general, the study shows how the disturbed glucose metabolism typical for malignant tumors can influence cancer microenvironment through UDP-sugars and hyaluronan. PMID- 29331339 TI - Cardiopulmonary hemodynamics and C-reactive protein as prognostic indicators in compensated and decompensated cirrhosis. AB - BACKGROUND & AIMS: The main stages of cirrhosis (compensated and decompensated) have been sub-staged based on clinical, endoscopic, and portal pressure (determined by the hepatic venous pressure gradient [HVPG]) features. Vasodilation leading to a hyperdynamic circulatory state is central in the development of a late decompensated stage, with inflammation currently considered a key driver. We aimed to assess hepatic/systemic hemodynamics and inflammation (by C-reactive protein [CRP]) among the different sub-stages of cirrhosis and to investigate their interrelationship and prognostic relevance. METHODS: A single center, prospective cohort of patients with cirrhosis undergoing per protocol hepatic and right-heart catheterization and CRP measurement, were classified into recently defined prognostic stages (PS) of compensated (PS1: HVPG >=6 mmHg but <10 mmHg; PS2: HVPG >=10 mmHg without gastroesophageal varices; PS3: patients with gastroesophageal varices) and decompensated (PS4: diuretic-responsive ascites; PS5: refractory ascites) disease. Cardiodynamic states based on cardiac index (L/min/m2) were created: relatively hypodynamic (<3.2), normodynamic (3.2 4.2) and hyperdynamic (>4.2). RESULTS: Of 238 patients, 151 were compensated (PS1 = 25; PS2 = 36; PS3 = 90) and 87 were decompensated (PS4 = 48; PS5 = 39). Mean arterial pressure decreased progressively from PS1 to PS5, cardiac index increased progressively from PS1-to-PS4 but decreased in PS5. HVPG, model for end stage liver disease (MELD), and CRP increased progressively from PS1-to-PS5. Among compensated patients, age, HVPG, relatively hypodynamic/hyperdynamic state and CRP were predictive of decompensation. Among patients with ascites, MELD, relatively hypodynamic/hyperdynamic state, post-capillary pulmonary hypertension, and CRP were independent predictors of death/liver transplant. CONCLUSIONS: Our study demonstrates that, in addition to known parameters, cardiopulmonary hemodynamics and CRP are predictive of relevant outcomes, both in patients with compensated and decompensated cirrhosis. LAY SUMMARY: There are two main stages in cirrhosis, compensated and decompensated, each with a main relevant outcome. In compensated cirrhosis the main relevant outcome is the development of ascites, while in decompensated cirrhosis it is death. Major roles of cardiac dysfunction and systemic inflammation have been hypothesized in the evolution of the disease in decompensated patients. In this study, we have shown that these factors were also involved in the progression from compensated to decompensated stage. PMID- 29331338 TI - Adiponectin levels in Brazilian adolescents: Distribution and associated factors in ERICA survey. AB - BACKGROUND: The aim of this study was to evaluate the distribution of adiponectin and associated factors with low adiponectin levels in a large sample of adolescents from different Brazilian regions. METHODS: This is a national, school based, cross-sectional multicenter study of cardiovascular risk factors in Brazilian adolescents aged 12 to 17 years. Serum adiponectin levels (MUg/ml) were measured by enzyme-linked immunosorbent assay kit. Given the lack of reference values, sex-and age-specific median was adopted as the cutoff point, with the values below the median representing a higher-risk profile. Associated factors with low levels of adiponectin were investigated using Poisson regression. RESULTS: The sample consisted of 4546 adolescents, the majority female (61.2%). The prevalence of overweight/obesity and abdominal obesity was 30% and 13.4%, respectively. The medians of adiponectin were 13.4 MUg/ml (95%CI: 12.8-14.0) in males and 14.2 MUg/ml (95%CI: 13.3-15.0) in females. Lower adiponectin levels were associated with both overweight (Prevalence Ratios (PR) = 1.17; 95%CI 1.01 1.36) and obesity (PR = 1.36; 95%CI 1.16-1.56) in males, while, in females, adiponectin levels were associated only with obesity (PR = 1.45; 95% CI 1.26 1.66). Increased waist circumference in both males and females was inversely associated with adiponectin level. CONCLUSIONS: Adiponectin levels were lower among adolescents with weight excess and abdominal obesity. Male adolescents who live in rural areas and study at private schools also showed lower adiponectin concentrations. PMID- 29331340 TI - Hsp72 protects against liver injury via attenuation of hepatocellular death, oxidative stress, and JNK signaling. AB - BACKGROUND & AIMS: Heat shock protein (Hsp) 72 is a molecular chaperone that has broad cytoprotective functions and is upregulated in response to stress. To determine its hepatic functions, we studied its expression in human liver disorders and its biological significance in newly generated transgenic animals. METHODS: Double transgenic mice overexpressing Hsp72 (gene Hspa1a) under the control of a tissue-specific tetracycline-inducible system (Hsp72-LAP mice) were produced. Acute liver injury was induced by a single injection of acetaminophen (APAP). Feeding with either a methionine choline-deficient (MCD; 8 weeks) or a 3,5-diethoxycarbonyl-1,4-dihydrocollidine-supplemented diet (DDC; 12 weeks) was used to induce lipotoxic injury and Mallory-Denk body (MDB) formation, respectively. Primary hepatocytes were treated with palmitic acid. RESULTS: Patients with non-alcoholic steatohepatitis and chronic hepatitis C infection displayed elevated HSP72 levels. These levels increased with the extent of hepatic inflammation and HSP72 expression was induced after treatment with either interleukin (IL)-1beta or IL-6. Hsp72-LAP mice exhibited robust, hepatocyte specific Hsp72 overexpression. Primary hepatocytes from these animals were more resistant to isolation-induced stress and Hsp72-LAP mice displayed lower levels of hepatic injury in vivo. Mice overexpressing Hsp72 had fewer APAP protein adducts and were protected from oxidative stress and APAP-/MCD-induced cell death. Hsp72-LAP mice and/or hepatocytes displayed significantly attenuated Jnk activation. Overexpression of Hsp72 did not affect steatosis or the extent of MDB formation. CONCLUSIONS: Our results demonstrate that HSP72 induction occurs in human liver disease, thus, HSP72 represents an attractive therapeutic target owing to its broad hepatoprotective functions. LAY SUMMARY: HSP72 constitutes a stress-inducible, protective protein. Our data demonstrate that it is upregulated in patients with chronic hepatitis C and non-alcoholic steatohepatitis. Moreover, Hsp72-overexpressing mice are protected from various forms of liver stress. PMID- 29331337 TI - Elastin in lung development and disease pathogenesis. AB - Elastin is expressed in most tissues that require elastic recoil. The protein first appeared coincident with the closed circulatory system, and was critical for the evolutionary success of the vertebrate lineage. Elastin is expressed by multiple cell types in the lung, including mesothelial cells in the pleura, smooth muscle cells in airways and blood vessels, endothelial cells, and interstitial fibroblasts. This highly crosslinked protein associates with fibrillin-containing microfibrils to form the elastic fiber, which is the physiological structure that functions in the extracellular matrix. Elastic fibers can be woven into many different shapes depending on the mechanical needs of the tissue. In large pulmonary vessels, for example, elastin forms continuous sheets, or lamellae, that separate smooth muscle layers. Outside of the vasculature, elastic fibers form an extensive fiber network that originates in the central bronchi and inserts into the distal airspaces and visceral pleura. The fibrous cables form a looping system that encircle the alveolar ducts and terminal air spaces and ensures that applied force is transmitted equally to all parts of the lung. Normal lung function depends on proper secretion and assembly of elastin, and either inhibition of elastin fiber assembly or degradation of existing elastin results in lung dysfunction and disease. PMID- 29331341 TI - Effects of the gut-liver axis on ischaemia-mediated hepatocellular carcinoma recurrence in the mouse liver. AB - BACKGROUND & AIMS: There is growing evidence that liver graft ischemia reperfusion (I/R) is a risk factor for hepatocellular carcinoma (HCC) recurrence, but the mechanisms involved are unclear. Herein, we tested the hypothesis that mesenteric congestion resulting from portal blood flow interruption induces endotoxin-mediated Toll-like receptor 4 (Tlr4) engagement, resulting in elevated liver cancer burden. We also assessed the role of remote ischemic preconditioning (RIPC) in this context. METHODS: C57Bl/6j mice were exposed to standardized models of liver I/R injury and RIPC, induced by occluding the hepatic and femoral blood vessels. HCC was induced by injecting RIL-175 cells into the portal vein. We further evaluated the impact of the gut-liver axis (lipopolysaccharide (LPS) Tlr4 pathway) in this context by studying mice with enhanced (lipopolysaccharide infusion) or defective (Tlr4-/- mice, gut sterilization, and Tlr4 antagonist) Tlr4 responses. RESULTS: Portal triad clamping provoked upstream mesenteric venous engorgement and increased bacterial translocation, resulting in aggravated tumor burden. RIPC prevented this mechanism by preserving intestinal integrity and reducing bacterial translocation, thereby mitigating HCC recurrence. These observations were linked to the LPS-Tlr4 pathway, as supported by the high and low tumor burden displayed by mice with enhanced or defective Tlr4 responses, respectively. CONCLUSIONS: Modulation of the gut-liver axis and the LPS-Tlr4 response by RIPC, gut sterilization, and Tlr4 antagonism represents a potential therapeutic target to prevent I/R lesions, and to alleviate HCC recurrence after liver transplantation and resection. LAY SUMMARY: Cancer recurrence can occur after liver resection or liver transplantation for hepatocellular carcinoma (HCC). This study suggests that intestinal venous congestion, which often occurs during liver surgery, favors the translocation of gut-derived bacterial products in the portal vein, thereby facilitating cancer recurrence by enhancing the signaling of Toll-like receptor 4 in the liver. Using a mouse model of HCC recurrence, we show that strategies that (i) reduce bacterial translocation (by gut decontamination, or by protecting the intestine from venous ischemia damage) or (ii) inhibit Tlr4 signaling in the liver, could reduce cancer recurrence. PMID- 29331342 TI - Development of a prognostic score to predict response to Yttrium-90 radioembolization for hepatocellular carcinoma with portal vein invasion. AB - BACKGROUND & AIMS: Yttrium-90 transarterial radioembolization (TARE) has shown promising efficacy in the treatment of patients with hepatocellular carcinoma (HCC), associated with portal vein tumor thrombus (PVTT). The aim of this study is to identify prognostic factors for survival in patients with HCC and PVTT undergoing TARE, and build a prognostic classification for these patients. METHODS: This is a single center retrospective study conducted over six years (2010-2015), on consecutive patients undergoing TARE. Patients were included if they met the following criteria: presence of at least one measurable HCC, presence of PVTT not occluding the main portal trunk, absence of extrahepatic metastases, Child-Pugh score within B7, Eastern Cooperative Oncology Group performance status 0-1. Uni- and multivariable analysis was used to explore the variables that showed an independent relationship with survival. A prognostic score was then derived, and three prognostic categories were identified. RESULTS: A total of 120 patients were included in the study. Median overall survival (OS) was 14.1 months (95% CI 10.7-17.5) and median progression-free survival (PFS) was 6.5 months (95% CI 3.8-9.2). The only variables independently correlated with OS were bilirubin, extension of PVTT and tumor burden. Three prognostic categories were identified: favourable prognosis (0 points), intermediate prognosis (2-3 points) and dismal prognosis (>3 points). Median OS in the three categories was 32.2 months, 14.9 months and 7.8 months respectively (p <0.0001). PFS (p = 0.045) and the risk of liver decompensation (p <0.0001) also significantly differed along the same prognostic categories. CONCLUSIONS: Radioembolization with Yttrium 90 is an effective therapy for patients with HCC and PVTT. The proposed prognostic stratification may help to better identify good candidates for the treatment, and those for whom TARE may be futile. LAY SUMMARY: Yttrium-90 transarterial radioembolization (TARE) is a microembolic procedure that minimizes alterations to hepatic arterial flow, and thus can be safely performed in patients with hepatocellular carcinoma (HCC) and portal vein tumor thrombus (PVTT). In this study, we retrospectively evaluated the independent predictors of long-term outcomes in patients with HCC and PVTT treated with TARE. Bilirubin level, extension of PVTT and tumor burden were independently related to post treatment survival: the combination of these factors allowed us to build a prognostic stratification that may help to better identify good candidates for the treatment, and those for whom TARE may be futile. PMID- 29331344 TI - Feels Not Right Stabbing a Child. PMID- 29331343 TI - Irradiation stents vs. conventional metal stents for unresectable malignant biliary obstruction: A multicenter trial. AB - BACKGROUND & AIMS: Placement of an irradiation stent has been demonstrated to offer longer patency and survival than an uncovered self-expandable metallic stent (SEMS) in patients with unresectable malignant biliary obstruction (MBO). We aim to further assess the efficacy of an irradiation stent compared to an uncovered SEMS in those patients. METHODS: We performed a randomized, open-label trial of participants with unresectable MBO at 20 centers in China. A total of 328 participants were allocated in parallel to the irradiation stent group (ISG) or the uncovered SEMS group (USG). Endpoints included stent patency (primary), technical success, relief of jaundice, overall survival, and complications. RESULTS: The first quartile stent patency time (when 25% of the patients experienced stent restenosis) was 212 days for the ISG and 104 days for the USG. Irradiation stents were significantly associated with a decrease in the rate of stent restenosis (9% vs. 15% at 90 days; 16% vs. 27% at 180 days; 21% vs. 33% at 360 days; p = 0.010). Patients in the ISG obtained longer survival time (median 202 days vs. 140 days; p = 0.020). No significant results were observed in technical success rate (93% vs. 95%; p = 0.499), relief of jaundice (85% vs. 80%; p = 0.308), and the incidence of grade 3 and 4 complications (8.5% vs. 7.9%; p = 0.841). CONCLUSIONS: Insertion of irradiation stents instead of uncovered SEMS could improve patency and overall survival in patients with unresectable MBO. LAY SUMMARY: For patients with unresectable malignant biliary obstruction (MBO), placement of a self-expandable metallic stent (SEMS) is a recommended palliative modality to relieve pruritus, cholangitis, pain, and jaundice. However, restenosis is a main pitfall after stent placement. Data from this first multicenter randomized controlled trial showed that insertion of an irradiation stent provided longer patency and better survival than a conventional metal stent. ClinicalTrials.gov ID: NCT02001779. PMID- 29331345 TI - July 14, 2016, Terror Attack in Nice, France. AB - On July 14, 2016, a terrorist attack by truck occurred in Nice, France, during the traditional fireworks for Bastille Day. The authors present the point of view of the doctors from Lenval University Children's Hospital, which is located near the attack place and which had to manage 47 casualties, including 12 adults. PMID- 29331346 TI - Predicting Low-Resource-Intensity Emergency Department Visits in Children. AB - OBJECTIVES: Interventions to reduce frequent emergency department (ED) use in children are often limited by the inability to predict future risk. We sought to develop a population-based model for predicting Medicaid-insured children at risk for high frequency (HF) of low-resource-intensity (LRI) ED visits. METHODS: We conducted a retrospective cohort analysis of Medicaid-insured children (aged 1-18 years) included in the MarketScan Medicaid database with >=1 ED visit in 2013. LRI visits were defined as ED encounters with no laboratory testing, imaging, procedures, or hospitalization; and HF as >=3 LRI ED visits within 365 days of the initial encounter. A generalized linear regression model was derived and validated using a split-sample approach. Validity testing was conducted examining model performance using 3 alternative definitions of LRI. RESULTS: Among 743,016 children with >=1 ED visit in 2013, 5% experienced high-frequency LRI ED use, accounting for 21% of all LRI visits. Prior LRI ED use (2 visits: adjusted odds ratio = 3.5; 95% confidence interval, 3.3, 3.7; and >=3 visits: adjusted odds ratio = 7.7; 95% confidence interval, 7.3, 8.1) and presence of >=3 chronic conditions (adjusted odds ratio = 1.7; 95% confidence interval, 1.6, 1.8) were strongly associated with future HF-LRI ED use. A model incorporating patient characteristics and prior ED use predicted future HF-LRI ED utilization with an area under the curve of 0.74. CONCLUSIONS: Demographic characteristics and patterns of prior ED use can predict future risk of HF-LRI ED use in the following year. Interventions for reducing low-value ED use in these high-risk children should be considered. PMID- 29331347 TI - Empowering Post-Surgical Patients to Improve Opioid Disposal: A Before and After Quality Improvement Study. AB - BACKGROUND: Our country is in the midst of an opioid epidemic. Although the problem is multifactorial, one issue is the presence of excess prescription opioid medications circulating in our communities. Our objective was to determine whether dissemination of an educational brochure would improve the disposal of unused opioids after surgery. STUDY DESIGN: Eligible surgery patients from an upper extremity/peripheral nerve clinic were enrolled into this prospective before and after study between February 2017 and September 2017. Patients who reported opioid use preoperatively were excluded from this study. The same survey was administered to the group of patients who did not receive the intervention and to those who did receive the intervention. Our primary endpoint was the proportion of patients who disposed of unused opioid medications. RESULTS: A total of 334 patients were studied: 164 who did not receive the brochure and 170 who received the brochure. Seventy-six patients were excluded for preoperative opioid use. After dissemination of the brochure, there was a significant increase in the proportion of patients who disposed of their unused opioids (11% vs 22%, p = 0.02). Of those who disposed of their opioids, there was no significant difference in the proportion of patients from each group who disposed in a manner that was recommended by the brochure (43% vs 64%, p = 0.19). CONCLUSIONS: Dissemination of the educational brochure improved disposal of unused opioids after surgery. This low-cost, easily implemented intervention can improve disposal of unused opioids and ultimately, decrease the amount of excess opioids circulating in our communities. PMID- 29331348 TI - Effects of l-tryptophan on the growth, intestinal enzyme activities and non specific immune response of sea cucumber (Apostichopus japonicus Selenka) exposed to crowding stress. AB - In order to reveal the effects of l-tryptophan (Trp) on the physiology and immune response of sea cucumber (Apostichopus japonicus Selenka) exposed to crowding stress, four density groups of sea cucumbers (i.e. 4, 8, 16 and 32 individuals per 40 L water, represented as L, ML, MH and H) were fed with diets containing 0, 1, 3 and 5% l-tryptophan respectively for 75 days. The results showed that the specific growth rates (SGR) of the sea cucumber fed with diet with 3% Trp (L, 2.1; ML, 1.76; MH, 1.2; H, 0.7) were significantly higher than those fed with basal diet without Trp supplementation (P < .05). Peak amylase activity occurred at H stress density at 3% dietary Trp. Trypsin activity was higher in diet 3% in ML and MH densities than the controls, which increased by 66.4% and 53.8%. However, the lipase activity first increased and then decreased from the stocking density L to H, with highest values of 3% Trp group showed the highest value than other groups. Compared to those fed with the basal diet, sea cucumber fed diets with Trp (3%) had significantly higher phagocytic activities (0.28 OD540/106 cells, H) in coelomic fluid and respiratory burst activities (0.105 OD630/106 cells, MH) (P < .05). The results suggested that Trp cannot improve superoxide dismutase (SOD) activity at L, ML and MH densities. The alkaline phosphatase activity (AKP) significantly decreased at H stress density. Under the experimental conditions, the present results confirmed that a diet supplemented with 3% Trp was able to enhance intestinal enzyme activities, non-specific immune response and higher growth performance of A. japonicus. PMID- 29331349 TI - Effect of a LECT2 on the immune response of peritoneal lecukocytes against Vibrio anguillarum in roughskin sculpin. AB - Leukocyte cell-derived chemotaxin 2 (LECT2) is a multi-functional protein that is mainly synthesized by the liver. However, its role in roughskin scalping is less known. Here, we cloned a leukocyte cell-derived chemotaxin 2 (TfLECT2) genes in the liver of roughskin scalping, Trachidermus fasciatus, and studied its possible role involved in the immune response against Vibrio anguillarum (V. anguillarum) of peritoneal lecukocytes under in vivo conditions. The cDNA sequence of TfLECT2 is 566 bp in size. Its deduced amino acid (aa) sequence comprises 151 residues, of which the first 16 residues form a putative signal peptide and 101 residues compose a typical peptidase M23 domain in the C-terminal region. The domain structure is conserved in all LECT2 proteins, which suggests a close phylogenetic relationship between TfLECT2 and LECT2 in other fish species. Real-time quantitative PCR analysis revealed that TfLECT2 gene expression was dramatically increased in liver after V. anguillarum stimulation. Subsequently, TfLECT2 was prokaryotic expressed and purified to prepare anti-TfLECT2 antibody. After V. anguillarum challenge, leukocytes recruitment and LECT2 levels in peritoneal exudates were increased, and positively correlated with each other. Moreover, recombinant TfLECT2 administration significantly improved immune responses after infection, principally in stimulating the recruitment, phagocytosis and respiratory burst of leukocytes at the site of infection; however, anti-TfLECT2 treatment neutralized these abilities. Therefore, TfLECT2 may trigger the early immune events of peritoneal leukocytes and it will be useful to induce innate immune response of fish. PMID- 29331350 TI - Construction of pOGOduet - An inducible, bicistronic vector for synthesis of recombinant proteins in Corynebacterium glutamicum. AB - The Gram-positive Corynebacterium glutamicum is widely known for its application in the industrial production of amino acids and as a non-pathogenic model organism for cell wall biosynthesis in the group of CMN bacteria. For biotechnological and physiological studies often co-expression of recombinant genes is required, however for C. glutamicum no vector for the independent co expression of two genes was described. We here created the novel expression vector pOGOduet for C. glutamicum, which carries the ColE1 replicon of E. coli and the pBL1 replicon of C. glutamicum and two independently inducible promoters Ptac and Ptet each followed by unique multiple cloning sites. Functionality of pOGOduet is tested by coexpression of genes for the fluorescent proteins eCFP and mVenus; fluorescence of the reporters varies in dependence of the inducer concentrations present in the culture broth. These experiments demonstrate that the vector pOGOduet fulfills the task for individually inducible expression of two genes of interest in C. glutamicum. PMID- 29331351 TI - Endoscopic surgery of the frontoethmoidal osteomas. PMID- 29331352 TI - Factors associated with voice disorders among the elderly: a systematic review. AB - INTRODUCTION: During the aging process, natural modifications occur in the larynx and the structures involved in phonation which explain the specific characteristics found in the voices of elderly persons. When, at any moment, a voice fails and there is interference with communication, a voice disorder has occurred. This can generate disadvantages in communicative efficiency and have a negative impact on quality of life, compromising mechanisms of socialization, the maintenance of autonomy, and the sense of well-being. Nevertheless, there appears to be little clarity about which factors are associated with voice disorders in this population, especially from an epidemiological perspective. OBJECTIVE: The present study is a literature review to identify factors associated with voice disorders among the elderly described in population-based studies. METHODS: A systematic review of electronic databases was carried out. The methodological quality of the studies was analyzed with the Strengthening the Reporting of Observational Studies in Epidemiology guidelines. The research was conducted independently by two researchers. RESULTS: Although two articles met the eligibility criteria, none fulfilled all the criteria for the evaluation of methodological quality. According to the two studies selected for this review, factors associated with voice disorders among the elderly included both physical and psychosocial aspects. However, the methodological discrepancies between the studies, particularly in relation to sample selection and the instruments used indicate great variability and compromise the reliability of the results. CONCLUSION: Further prevalence studies and investigations of factors associated with voice disorders in the elderly from an epidemiological perspective, and which involve different cultures, should be carried out. PMID- 29331353 TI - Mechanisms of Sex Differences in Fear and Posttraumatic Stress Disorder. AB - Following sexual maturity, females disproportionately have higher rates of posttraumatic stress disorder (PTSD) and experience greater symptom severity and chronicity as compared with males. This observation has led many to examine sex differences in PTSD risk factors. Though relatively few, these studies reveal that the root causes of PTSD sex differences are complex, and partly represent interactions between sex-specific nonbiological and biological risk factors, which differentially shape PTSD vulnerability. Moreover, these studies suggest that sex-specific PTSD vulnerability is partly regulated by sex differences in fear systems. Fear, which represents a highly conserved adaptive response to threatening environmental stimuli, becomes pathological in trauma- and stress based psychiatric syndromes, such as PTSD. Over the last 30 years, considerable progress has been made in understanding normal and pathological molecular and behavioral fear processes in humans and animal models. Thus, fear mechanisms represent a tractable PTSD biomarker in the study of sex differences in fear. In this review, we discuss studies that examine nonbiological and biological sex differences that contribute to normal and pathological fear behaviors in humans and animal models. This, we hope, will shed greater light on the potential mechanisms that contribute to increased PTSD vulnerability in females. PMID- 29331354 TI - Specificity in Etiology of Subtypes of Bipolar Disorder: Evidence From a Swedish Population-Based Family Study. AB - BACKGROUND: Uncertainty remains whether bipolar I disorder (BDI) and bipolar II disorder (BDII) differ etiologically. We used a population-based family sample to examine the etiological boundaries between BDI and BDII by assessing their familial aggregation/coaggregation and by assessing the coaggregation between them and schizophrenia, depression, attention-deficit/hyperactivity disorder, eating disorders, autism spectrum disorder, substance use disorders, anxiety disorders, and personality disorders. METHODS: By linking Swedish national registers, we established a population-based cohort (N = 15,685,511) and identified relatives with different biological relationships. Odds ratios (ORs) were used to measure the relative risk of BDI and BDII in relatives of individuals diagnosed with BDI (n = 4309) and BDII (n = 4178). The heritability for BDI and BDII and the genetic correlation across psychiatric disorders were estimated by variance decomposition analysis. RESULTS: Compared with the general population, the OR of BDI was 17.0 (95% confidence interval [CI] 13.1-22.0) in first-degree relatives of BDI patients, higher than that of BDII patients (OR 9.8, 95% CI 7.7-12.5). The ORs of BDII were 13.6 (95% CI 10.2-18.2) in first degree relatives of BDII patients and 9.8 (95% CI 7.7-12.4) in relatives of BDI patients. The heritabilities for BDI and BDII were estimated at 57% (95% CI 32% 79%) and 46% (95% CI 21%-67%), respectively, with a genetic correlation estimated as 0.78 (95% CI 0.36-1.00). The familial coaggregation of other psychiatric disorders, in particular schizophrenia, showed different patterns for BDI and BDII. CONCLUSIONS: Our results suggest a distinction between BDI and BDII in etiology, partly due to genetic differences. PMID- 29331355 TI - Contemporary Procedural Complications, Hospitalizations, and Emergency Visits After Catheter Ablation for Atrial Fibrillation. AB - Contemporary data on complications and resource utilization after atrial fibrillation (AF) ablation are limited. We evaluated rates and risk factors for procedural complication, rehospitalization, and emergency department visits after AF ablation. We identified all adult patients who underwent isolated AF ablation between 2010 and June 2014 in 2 large integrated health-care delivery systems and evaluated rates of acute inpatient complication, 30-day, and 1-year readmission and emergency evaluation. We used multivariable logistic regression to identify predictors of procedural complications, 30-day readmission, or 30-day emergency department evaluation. In 811 AF ablation patients, procedural complications occurred in 2.5% of patients, 9.7% of patients were rehospitalized within 30 days, and 19.1% of patients had an emergency visit within 30 days. At 1 year after AF ablation, 28.9% of patients were readmitted, with 18% of patients readmitted for AF or atrial flutter. At 1 year, 44.5% of patients were seen in an emergency department, with 37.1% related to AF or atrial flutter. Vascular complications and perforation or tamponade were the most common complications, and Hispanic ethnicity, mitral or aortic valvular disease, and diabetes mellitus were the strongest risk factors for adverse outcomes at 30 days after AF ablation. Contemporary rates of acute complication and 1-year readmission after AF ablation have markedly decreased compared with previous community-based studies. PMID- 29331357 TI - Differentiation of Inflammatory From Fibrotic Ileal Strictures among Patients with Crohn's Disease Based on Visual Analysis: Feasibility Study Combining Conventional B-Mode Ultrasound, Contrast-Enhanced Ultrasound and Strain Elastography. AB - The aim of this pilot study was to assess prospectively the feasibility of conventional B-mode ultrasound (US) and contrast-enhanced ultrasound (CEUS) combined with real-time strain elastography (SE) in the differentiation of inflammatory from fibrotic ileal strictures among patients with Crohn's disease (CD) based on visual analysis. Twenty non-consecutive patients (15 male and 5 female; mean age +/- standard deviation, 40.2 +/- 10.22 y) with CD and stricture of the terminal ileal loop were scanned by conventional B-mode US and CEUS and, subsequently, by real-time SE. Two independent readers visually classified each bowel stricture as fibrotic or inflammatory based on conventional B-mode US, CEUS, SE, individually and then for all techniques combined. All techniques combined had a higher (p <0.05) sensitivity (reader 1, 9/20 [45%]; reader 2, 7/20 [35%]), specificity (reader 1, 5/20 [25%]; reader 2, 8/20 [40%]) and diagnostic accuracy (reader 1, 14/20 [70%]; reader 2, 15/20 [75%]) and higher (p <0.05) area under the receiver operating characteristic curve (reader 1, 0.953; reader 2, 0.921) than individual techniques. Inter-reader agreement was fair for conventional B-mode US (k = 0.46) and CEUS (k = 0.39), moderate for SE (k = 0.6) and fair for all techniques combined (k = 0.38). Conventional B-mode US and CEUS, in combination with SE, may improve differentiation of inflammatory from fibrotic ileal strictures among patients with CD based on visual analysis. PMID- 29331356 TI - Assessment of Diastolic Function Using Ultrasound Elastography. AB - Shear wave elasticity imaging (SWEI) is a novel ultrasound elastography technique for assessing tissue stiffness. In this study, we investigate the potential of SWEI for providing diastolic functional assessment. In 11 isolated rabbit hearts, pressure-volume (PV) measurements were recorded simultaneously with SWEI recordings from the left ventricle free wall before and after induction of global ischemia. PV-based end diastolic stiffness increased by 100% after ischemia (p <0.05), and SWEI stiffness showed an increase of 103% (p <0.05). The relaxation time constant (tau) before and after ischemia derived from pressure and SWEI curves showed increases of 79% and 76%, respectively (p <0.05). A linear regression between pressure-derived and SWEI-based (tau) showed a slope of 1.164 with R2 = 0.80, indicating the near equivalence of the two assessments. SWEI can be used to derive (tau) values and myocardial end diastolic stiffness. In global conditions, these measurements are consistent with PV measurements of diastolic function. PMID- 29331358 TI - Assessing Risk Category of Breast Cancer by Ultrasound Imaging Characteristics. AB - The purpose of our study was to assess the potential clinical value of ultrasound imaging in predicting risk category in patients with breast cancer. Three hundred thirty-six patients were enrolled and divided into a high-risk group (99, 29.5%) and mid- to low-risk group (237, 70.5%) according to the St. Gallen risk criteria. All data were retrospectively collected to analyze correlations between ultrasound features and risk category. The results revealed that the ultrasound features of irregular shape (p= 0.002), vertical growth orientation (p= 0.002), angular contour (p= 0.022) and high color Doppler flow imaging grade (p= 0.001) tended to be present in images of the high-risk group. Therefore, tumor ultrasound features should be recognized as an ideal option for determination of risk category in patients with breast cancer. PMID- 29331359 TI - Quantitative CT Evaluation of Small Pulmonary Vessels in Patients with Acute Pulmonary Embolism. AB - RATIONALE AND OBJECTIVES: The objective of this study was to investigate the correlation between the computed tomography (CT) cross-sectional area (CSA) of small pulmonary vessels and the CT obstruction index in patients with acute pulmonary embolism (PE) and the correlation between the changes in these measurements after anticoagulant therapy. MATERIALS AND METHODS: Fifty-two patients with acute PE were selected for this study. We measured the CSA less than 5 mm2 on coronal reconstructed images to obtain the percentage of the CSA (%CSA < 5). CT angiographic index was obtained based on the Qanadli method for the evaluation of the degree of pulmonary arterial obstruction. Spearman rank correlation analysis was used to evaluate the relationship between the initial and the follow-up values and changes in the %CSA < 5 and the CT obstruction index. RESULTS: There was no significant correlation between the %CSA < 5 and CT obstruction index on both initial (rho = -0.03, P = 0.84) and follow-up (rho = 0.03, P = 0.82) assessments. In contrast, there was a significant negative correlation between the changes in %CSA < 5 and the CT obstruction index (rho = 0.59, P < 0.0001). CONCLUSIONS: Although the absolute %CSA < 5 and CT obstruction index were not significantly correlated, the changes in the values of the two parameters had a significant correlation. Changes in %CSA < 5, which can be obtained easily, can be used as biomarker of therapeutic response in patients with acute PE. PMID- 29331360 TI - Fully Automated Segmentation of Polycystic Kidneys From Noncontrast Computed Tomography: A Feasibility Study and Preliminary Results. AB - RATIONALE AND OBJECTIVES: Total kidney volume is an important biomarker for the evaluation of autosomal dominant polycystic kidney disease progression. In this study, we present a novel approach for automated segmentation of polycystic kidneys from non-contrast-enhanced computed tomography (CT) images. MATERIALS AND METHODS: Non-contrast-enhanced CT images were acquired from 21 patients with a diagnosis of autosomal dominant polycystic kidney disease. Kidney volumes obtained from the fully automated method were compared to volumes obtained by manual segmentation and evaluated using linear regression and Bland-Altman analyses. Dice coefficient was used for performance evaluation. RESULTS: Kidney volumes from the automated method well correlated with the ones obtained by manual segmentation. Bland-Altman analysis showed a low percentage bias (-0.3%) and narrow limits of agreements (11.0%). The overlap between the three dimensional kidney surfaces obtained with our approach and by manual tracing, expressed in terms of Dice coefficient, showed good agreement (0.91 +/- 0.02). CONCLUSIONS: This preliminary study showed the proposed fully automated method for renal volume assessment is feasible, exhibiting how a correct use of biomedical image processing may allow polycystic kidney segmentation also in non contrast-enhanced CT. Further investigation on a larger dataset is needed to confirm the robustness of the presented approach. PMID- 29331361 TI - Uterine Artery Embolization: An Analysis of Online Patient Information Quality and Readability with Historical Comparison. AB - RATIONALE AND OBJECTIVES: Investigators aimed to assess online information describing uterine artery embolization (UAE) to examine the quality and readability of websites patients are accessing. MATERIALS AND METHODS: A list of applicable, commonly used searchable terms was generated, including "Uterine Artery Embolization," "Fibroid Embolization," "Uterine Fibroid Embolization," and "Uterine Artery Embolisation." Each possible term was assessed across the five most-used English language search engines to determine the most commonly used term. The most common term was then investigated across each search engine, with the first 25 pages returned by each engine included for analysis. Duplicate pages, nontext content such as video or audio, and pages behind paywalls were excluded. Pages were analyzed for quality and readability using validated tools including DISCERN score, JAMA Benchmark Criteria, HONcode Certification, Flesch Reading Ease Score, Flesch-Kincaid Grade Level, and Gunning-Fog Index. Secondary features such as age, rank, author, and publisher were recorded. RESULTS: The most common applicable term was "Uterine Artery Embolization" (492,900 results). Mean DISCERN quality of information provided by UAE websites is "fair"; however, it has declined since comparative 2012 studies. Adherence to JAMA Benchmark Criteria has reduced to 6.7%. UAE website readability remains more difficult than the World Health Organization-recommended 7-8th grade reading levels. HONcode certified websites (35.6%) demonstrated significantly higher quality than noncertified websites. CONCLUSIONS: Quality of online UAE information remains "fair." Adherence to JAMA benchmark criteria is poor. Readability is above recommended 7-8th grade levels. HONcode certification was predictive of higher website quality, a useful guide to patients requesting additional information. PMID- 29331362 TI - Multi-model Analysis of Diffusion-weighted Imaging of Normal Testes at 3.0 T: Preliminary Findings. AB - RATIONALE AND OBJECTIVES: This study aimed to establish diffusion quantitative parameters (apparent diffusion coefficient [ADC], DDC, alpha, Dapp, and Kapp) in normal testes at 3.0 T. MATERIALS AND METHODS: Sixty-four healthy volunteers in two age groups (A: 10-39 years; B: >= 40 years) underwent diffusion-weighted imaging scanning at 3.0 T. ADC1000, ADC2000, ADC3000, DDC, alpha, Dapp, and Kapp were calculated using the mono-exponential, stretched-exponential, and kurtosis models. The correlations between parameters and the age were analyzed. The parameters were compared between the age groups and between the right and the left testes. RESULTS: The average ADC1000, ADC2000, ADC3000, DDC, alpha, Dapp, and Kapp values did not significantly differ between the right and the left testes (P > .05 for all). The following significant correlations were found: positive correlations between age and testicular ADC1000, ADC2000, ADC3000, DDC, and Dapp (r = 0.516, 0.518, 0.518, 0.521, and 0.516, respectively; P < .01 for all) and negative correlations between age and testicular alpha and Kapp (r = 0.363, -0.427, respectively; P < .01 for both). Compared to group B, in group A, ADC1000, ADC2000, ADC3000, DDC, and Dapp were significantly lower (P < .05 for all), but alpha and Kapp were significantly higher (P < .05 for both). CONCLUSIONS: Our study demonstrated the applicability of the testicular mono exponential, stretched-exponential, and kurtosis models. Our results can help establish a baseline for the normal testicular parameters in these diffusion models. The contralateral normal testis can serve as a suitable reference for evaluating the abnormalities of the other side. The effect of age on these parameters requires further attention. PMID- 29331363 TI - Breast Imaging Match Highlights the Need to Unify the Approach to Fellowship. PMID- 29331364 TI - Picky eating, pressuring feeding, and growth in toddlers. AB - Several common theoretical frameworks have posited causal pathways between picky eating, pressuring feeding, and growth in early childhood. The evidence to support these pathways is limited. This observational cohort study sought to examine the cross-lagged associations between mother-reported pressuring feeding, mother-reported child picky eating, and measured weight-for-length z-score (WLZ) across child ages 21, 27, and 33 months (n = 244). Cross-lagged analysis was used to evaluate longitudinal associations between these three constructs. The sample was 50.5% white, 52.3% male and 37.8% of mothers had a high school education or less. Mean WLZ was 0.52, 0.41, and 0.38 at each age, respectively. Pressuring feeding, picky eating, and WLZ each tracked strongly from 21 to 33 months. There were concurrent associations between pressuring feeding and picky eating. However, there were no prospective associations between pressuring feeding and future WLZ; WLZ and future pressuring feeding; pressuring feeding and future picky eating; picky eating and future pressuring feeding; or picky eating and future WLZ. Our results do not support causal relationships between picky eating, pressuring feeding, and growth in toddlerhood. Future work that examines alternative mechanisms shaping growth in early childhood is needed. PMID- 29331365 TI - Assessment of test-retest reliability of a food choice task among healthy individuals. AB - Aberrations in eating patterns constitute a substantial public health burden. Computer-based paradigms that measure responses to images of foods are potentially useful tools for assessing food attitudes and characteristics of eating behavior. In particular, food choice tasks attempt to directly probe aspects of individuals' decisions about what to eat. In the Food Choice Task participants rate the healthiness and tastiness of a variety of food items presented one at a time. Next, participants choose for each food item whether they prefer to eat the item vs. a neutrally rated reference food item. The goal of the current study was to assess the stability and reliability of this Food Choice Task over time and with repeated testing. Secondary analyses were conducted using data from healthy volunteers in two separate studies that administered the task at two time points, separated either by several days or about a month. The overall reliability of the Food Choice Task across multiple administrations was assessed using intra-class correlation coefficients and the reliability of ratings of individual food items was assessed using kappa coefficients. The results indicated that test-retest reliability of the Food Choice Task in healthy volunteers was high at both shorter and longer test-retest intervals. In addition, the reliability of individual food item ratings was good for a majority of items. The proportion of healthy volunteers' high-fat food choices did not change over time in either of the two studies. Thus, the Food Choice Task is suitable for measuring food choices in studies with multiple assessment points. In particular, the task may be well suited to assess restrictive eating, a construct which it has been difficult to assess in experimental settings. PMID- 29331366 TI - Eating in the absence of hunger is related to loss-of-control eating, hedonic hunger, and short-term weight gain in normal-weight women. AB - Eating beyond physiological need contributes to obesity onset. Measuring this behavior could help identify those at risk for weight gain. This study measured eating in the absence of hunger (EAH) and its relationship with weight change and self-report measures related to appetite and eating behavior. EAH was assessed in 46 lean young women (69% pre-selected for weight gain proneness) after lunch and defined as the number of calories subsequently consumed from snacks. Participants also completed questionnaires, and their body weights were measured regularly over the next year. Participants consumed a mean 188 calories (+/-140) during the EAH test. Caloric intake during the EAH test was associated with hedonic hunger (p < .01, R2 = 0.18), loss of control eating (p < .001, R2 = 0.29), and weight gain over two months (p < .01, R2 = 0.19), controlling for baseline body mass index. All were large effect sizes. In contrast, EAH was unrelated to emotional eating, disinhibition, and longer-term weight change. Amount of the test meal eaten in a hungry state was unrelated to these variables. While EAH has mainly been examined in children, these results expand its utility to adults. EAH seems to reflect naturalistic eating behavior, as shown by its relationship with short term weight gain, drive to overconsume foods, and loss of control over eating. EAH may be a useful test to identify young adults at risk for weight gain and/or disordered eating, and may be a target for intervention. PMID- 29331367 TI - Molecular characterization and differential expression analysis of interleukin 1beta from Ovis aries. AB - The interleukin-1 family is an important component of the innate immune system and plays an important role in regulating immune responses on the invasion of intracellular parasites in the acquired immune system. Interleukin 1beta (IL 1beta) is one of the members of the IL-1 family that predominantly activates downstream signaling pathways to play immunological functions of stimulating T and B lymphocyte activation and promoting the various syntheses of inflammatory substances in conjunction with other cytokines. Here, a full-length IL-1beta cDNA (OaIL-1beta) of sheep (Ovis aries) was cloned using rapid amplification of cDNA ends (RACE), which consists of 1494 bp and contains a 5'-UTR region with a length of 83 bp, a complete ORF of 801 bp in length, and a 3'-UTR region with a length of 642 bp. Recombinant protein OaIL-1beta was expressed and purified, and the monoclonal antibody against IL-1beta of sheep is prepared. Western blotting results showed that the sheep IL-1beta protein was detected in the heart, liver, lung, kidney, stomach, intestine, muscle, lymph nodes and leukocytes with the highest expression in the muscle and the lowest expression in the lung. Different bacteria treating sheep white blood cells induced differential expression of OaIL 1beta. Compared with the normal sheep, OaIL-1beta in the buffy coat was differentially expressed in the Brucella melitensis-challenged group and the B. suis S2 strain-inoculated group. However, whether IL-1beta may be considered as a molecular biomarker for differing Brucella-infected animals from brucellosis vaccinated animals or not need to be further studied. PMID- 29331368 TI - In vitro and in vivo safety analysis of Enterococcus faecium 2C isolated from human breast milk. AB - INTRODUCTION: Safety analysis of probiotic bacteria is an obligatory characteristic to be evaluated prior to application in food or pharmacological products. This study was designed to evaluate in vitro and in vivo safety parameters of Enterococcus faecium 2C strain, a probiotic candidate isolated from human breast milk. MATERIAL AND METHODS: E.faecium 2C was studied for its hemolytic activity and phenotypic antibiotics resistance profile. In vivo safety of the mentioned Enterococcus strain was studied by determining acute oral toxicity in Wistar Male rats. The animals were randomly divided into two groups of 3 animals each. The test group animals were gavaged daily with bacterial dose of 1 * 1011 CFU/kg of animal body weight for 21 consecutive days. The animals in control group received normal basal diet without any supplementations. Hematological and biochemical parameters, organ weight, body weight and common health features of the animals were recorded. RESULTS: E.faecium 2C appeared non hemolytic and sensitive to the majority of the tested antibiotics. The Wistar male rats fed orally with the mentioned bacterial suspensions survived the test period, and showed normal growth and development. No adverse effects on the general health condition, behavior, and growth were seen in the treated animals compared to control group. Additionally, no significant changes in the hematological results, blood biochemistry, organ weights and histopathology of the rats in treatment groups were observed. None of the vital organs of the treated animals showed signs of bacteremia or infectivity. CONCLUSION: E.faecium 2C strain isolated from human breast milk might be considered safe for use in probiotic formulations intended for man and animals. PMID- 29331369 TI - Equisetum telmateia extracts: Chemical compositions, antioxidant activity and antimicrobial effect on the growth of some pathogenic strain causing poisoning and infection. AB - The aerial parts of Equisetum telmateia have been used as a source of biologically active compounds to treat inflammatory, diarrhea, stomach-ache, eczema and mouth infections in traditional medicine. The aim of this work is to evaluate the extraction yield, chemical compositions, antioxidant activity and antimicrobial activity of E. telmateia extracts on Staphylococcus aureus, Bacillus cereus, Escherichia coli, Salmonella typhi and Candida albicans. Chemical compositions E. telmateia was analyzed by high performance liquid chromatography (HPLC) using a C18 column. Analysis of E. telmateia extract by HPLC allowed the identification of Kaempferol 3-O-(6"-O-acetylglucoside) as major compound. The antioxidant activity of extracts was examined by measuring their ability to sequestrate 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals. The results showed that the DPPH (IC50 = 70.83 +/- 0.2 MUg/ml) were obtained in the case of supercritical fluid extraction (SFE) extract. MIC microdilution assay were used to determine the antimicrobial activities. Contrary to lower extraction yield (9.6 +/- 0.5), the SFE extract exhibited the highest antimicrobial potency with MIC and MBC values of 32 mg/ml against S. aureus compared to the other extracts. The results suggest that SFE method is more appropriate for extraction of E. telmateia biologically active substances with antimicrobial and antioxidant activity than conventional solvent extraction methods. PMID- 29331370 TI - Preparation and evaluation of antibacterial potential of Pithecellobium dulce root extract against Gram positive and Gram negative bacteria. AB - In the present study hexane, benzene, ethyl acetate and ethanol extracts of Pithecellobium dulce root were prepared using soxhlet extractor. The extracts were evaluated for antibacterial activity against one Gram positive (Staphylococcus aureus) and three Gram negative (Acetobacter aceti, Acetobacter aceti, Klebsiella pneumoniae) strains. Disc diffusion method revealed promising antibacterial activity of the extracts prepared in polar solvents (ethyl acetate and ethanol) compared to non-polar solvents (hexane and benzene). Ethanolic root extract was found to be most active against Acetobacter aceti, Staphylococcus aureus, Klebsiella pneumonia and Enterobacter aerogenes bacterial strains. The zone of inhibition of ethanolic root extract against Acetobacter aceti, Staphylococcus aureus, Klebsiella pneumonia and Enterobacter aerogenes bacterial strains was 15.4, 11.0, 19.0 and 13.0 mm, respectively at 100 mg concentration. Ethyl acetate extract also exhibited good antibacterial activity against Entrobacter aerogenes, Klebsiella pneumonia and Acetobacter aceti. The zone of inhibition of ethyl acetate root extracts against Entrobacter aerogenes, Acetobacter aceti and Klebsiella pneumonia was 10.5, 18.0 and 10.0 mm, respectively. The benzene extract showed some activity against Acetobacter aceti with the zone of inhibition 10.0 mm. The antibacterial activity of Pithecellobium dulce root hexane extract was found to be negligible against all the four tested strains of bacteria. These findings suggest that ethanolic and ethyl acetate root extracts of Pithecellobium dulce has potential as effective anti-bacterial agent. PMID- 29331372 TI - Cancer care delivery research in gynecologic oncology. PMID- 29331371 TI - Birth weight and the risk of histological subtypes of ovarian and endometrial cancers: Results from the Copenhagen School Health Records Register. AB - BACKGROUND: Studies of birth weight associations with ovarian and endometrial cancer risks are limited with inconsistent results, and none has evaluated associations by histologic subtype. We utilized prospectively collected birth weight information to investigate the association with risk of ovarian and endometrial cancers overall and by histologic subtype. METHODS: 162,559 girls, born from 1930 to 1989, from the Copenhagen School Health Records Register (CSHRR) were followed prospectively via linkage with the Danish health registers. Ovarian (n=666) and endometrial (n=694) cancers were identified from 1978 to 2014. Cox regression was used to estimate hazard ratios (HR) and 95% confidence intervals (CI). RESULTS: Women with lower (2.0-3.25 vs. 3.26-3.75kg) and higher (3.75-5.5 vs. 3.26-3.75kg) birth weights had increased risks of ovarian cancer overall [HR (95% CI): 1.27 (1.06-1.52); 1.51 (1.21-1.87), respectively] and serous ovarian cancers [1.54 (1.19-1.98); 1.98 (1.47-2.67), respectively]. A decreased risk of Type II endometrial tumors was suggested per kilogram increase in birth weight [HR (95% CI): 0.63 (0.40-1.00)]. CONCLUSIONS: Our results suggest that both lower and higher birth weights were associated with increased ovarian cancer risk and associations were particularly strong for serous ovarian cancer, the most common subtype. Birth weight was not associated with most types of endometrial cancer. PMID- 29331374 TI - Alternative pathway of H2S and polysulfides production from sulfurated catalytic cysteine of reaction intermediates of 3-mercaptopyruvate sulfurtransferase. AB - It has been known that hydrogen sulfide and/or polysulfides are produced from a (poly)sulfurated sulfur-acceptor substrate of 3-mercaptopyruvate sulfurtransferase (MST) via thioredoxin (Trx) reduction in vitro. In this study, we used thiosulfate as the donor substrate and the catalytic reaction was terminated on the formation of a persulfide or polysulfides. We can present alternative pathway of production of hydrogen sulfide and/or polysulfides from (poly)sulfurated catalytic-site cysteine of reaction intermediates of MST via Trx reduction. Matrix-assisted laser desorption ionization tandem time-of-flight mass spectrometric analysis revealed that after prolonged incubation of MST with thiosulfate, a trisulfide adduct becomes predominant at the sulfurated catalytic site cysteine. When these adducts were reduced by Trx with reducing system (MST:Escherichia coli Trx:E. coli Trx reductase:NADPH = 1:5:0.02:12.5 molar ratio), liquid chromatography with tandem mass spectrometric analysis for monobromobimane-derivatized H2Sn revealed that H2S2 first appeared, and then H2S and H2S3 did later. The results were confirmed by high-performance liquid chromatography-fluorescence analysis. PMID- 29331373 TI - Establishment and characterization of five immortalized human scalp dermal papilla cell lines. AB - Dermal papilla (DP) regulates the growth and cycling of hair follicles. Cultured DP cells are useful for the study of their role in relation to hair growth and regeneration. However, cultivation of human DP cells is tedious and difficult. In addition, cultured DP cells possess a relatively short replicative life span, requiring immortalized human DP cell lines. We previously established an immortalized human DP cell line, SV40T-hTERT-DPC, by introducing human telomerase reverse transcriptase (hTERT) gene into the transformed cell line, SV40T-DPC. In this study, we co-transfected the simian virus 40 large T antigen (SV40T-Ag) and hTERT into DP cells from scalp hair follicles from a male with androgenetic alopecia and established five immortalized DP cell lines and named KNU-101, KNU 102, KNU-103, KNU-201 and KNU-202. We then evaluated tumorigenicity, expression of DP markers, responses to androgen, Wnt3a and BMP4, and expression of DP signature genes. These cell lines displayed early passage morphology and maintained responses to androgen, Wnt and BMP. Furthermore, these cell lines expressed DP markers and DP signature genes. KNU cell lines established in this study are potentially useful sources for hair research. PMID- 29331375 TI - Xanthomonas TAL effectors hijack host basal transcription factor IIA alpha and gamma subunits for invasion. AB - The Xanthomonas genus includes Gram-negative plant-pathogenic bacteria, which infect a broad range of crops and wild plant species, cause symptoms with leaf blights, streaks, spots, stripes, necrosis, wilt, cankers and gummosis on leaves, stems and fruits in a wide variety of plants via injecting their effector proteins into the host cell during infection. Among these virulent effectors, transcription activator-like effectors (TALEs) interact with the gamma subunit of host transcription factor IIA (TFIIAgamma) to activate the transcription of host disease susceptibility genes. Functional TFIIA is a ternary complex comprising alpha, beta and gamma subunits. However, whether TALEs recruit TFIIAalpha, TFIIAbeta, or both remains unknown. The underlying molecular mechanisms by which TALEs mediate host susceptibility gene activation require full elucidation. Here, we show that TALEs interact with the alpha+gamma binary subcomplex but not the alpha+beta+gamma ternary complex of rice TFIIA (holo-OsTFIIA). The transcription factor binding (TFB) regions of TALEs, which are highly conserved in Xanthomonas species, have a dominant role in these interactions. Furthermore, the interaction between TALEs and the alpha+gamma complex exhibits robust DNA binding activity in vitro. These results collectively demonstrate that TALE-carrying pathogens hijack the host basal transcription factors TFIIAalpha and TFIIAgamma, but not TFIIAbeta, to enhance host susceptibility during pathogen infection. The uncovered mechanism widens new insights on host-microbe interaction and provide an applicable strategy to breed high-resistance crop varieties. PMID- 29331376 TI - MicroRNA-425 facilitates pathogenic Th17 cell differentiation by targeting forkhead box O1 (Foxo1) and is associated with inflammatory bowel disease. AB - Inflammatory bowel disease (IBD) is a chronic autoimmune disease, and its pathogenesis remains mostly unknown. MicroRNAs (miRs) has drawn much attention as a crucial regulator of autoimmune diseases. In this study, we demonstrated, for the first time, that miR-425 was significantly up-regulated in peripheral blood mononuclear cells (PBMC) and mucosa of patients with IBD. In note, T helper (Th) 17 cells were found to be the major source of miR-425 expression. Using gain-of function approaches, we demonstrated that miR-425 could facilitate the differentiation of CD4+ T cells into Th17 lineage. In addition, forkhead box O1 (Foxo1) was identified as a novel target gene of miR-425, which was able to inhibit Th17 cell differentiation, and it was observed to be markedly decreased in PBMC and mucosa of patients with IBD. Notably, in vivo inhibition of miR-425 significantly alleviated the disease severity of TNBS-induced colitis in mice, with down-regulated levels of IL-17A. Our data reveal a novel mechanism in which the elevated miR-425 in IBD mediates pathogenic Th17 cell generation through down regulation of Foxo1. In vivo blockade of miR-425 may serve as a novel therapeutic approach in the treatment of IBD. PMID- 29331377 TI - beta-cellulin promotes the proliferation of corneal epithelial stem cells through the phosphorylation of erk1/2. AB - The proliferation of corneal epithelial stem cells (CESCs) is a very important process in the recovery of corneal wounds. Recent studies have shown that beta cellulin (BC) is effective in the repair of other tissues. However, its mechanism of action in corneal wound healing is not yet clear. The purpose of this study was to investigate how BC accelerates wound healing of the cornea. Here, we confirmed that the proliferation of CESCs was induced at a specific concentration (0.2, 2 and 20 ng/mL) by treatment with BC. Markers associated with proliferation activity (DeltaNp63, bmi-1, abcg2) were also upregulated. In vivo experiments showed that the corneal wound healing rate was increased in mice. We found that BC stimulates the phosphorylation of the erk1/2 signaling pathway, which is triggered during the recovery of mouse corneal wounds. However, the inhibition of erk1/2 phosphorylation delayed the recovery of mouse corneal wounds in an organ culture assay. According to these results, BC may be a potential treatment factor for corneal wound healing. PMID- 29331379 TI - Effect of histidine on sorafenib-induced vascular damage: Analysis using novel medaka fish model. AB - BACKGROUND: Sorafenib (SFN) is an anti-angiogenic chemotherapeutic that prolongs survival of patients with hepatocellular carcinoma (HCC); its side effects, including vascular damages such as hand-foot syndrome (HFS), are a major cause of therapy discontinuation. We previously reported that maintenance of peripheral blood flow by intake of dried bonito broth (DBB) significantly prevented HFS and prolonged the administration period. The amino acids contained in DBB probably contribute to its effects, but the mechanism has not been clarified. We hypothesized that histidine, the largest component among the amino acids contained in DBB, has effects on SFN-induced vascular damage, and evaluated this possibility using a novel medaka fish model. METHODS: The fli::GFP transgenic medaka fish model has a fluorescently visible systemic vasculature. We fed the fish with SFN with and without histidine to compare blood flow and vascular structure among the differently fed models. The vascular cross-sectional area of each fish was measured to determine vascular diameter changes. RESULTS: Our results demonstrated that SFN-fed medaka developed a narrower vascular diameter. In addition, this narrowing was counteracted by addition of histidine to the medaka diet. We observed no positive effect of histidine on regeneration of cut vessels or on cell growth of endothelial cells and HCC cell lines. CONCLUSION: We proved the efficacy of the medaka model to assess vascular changes after administration of specific chemicals. And our results suggest that SFN causes vascular damage by narrowing peripheral vessel diameter, and that histidine effectively counteracts these changes to maintain blood flow. PMID- 29331380 TI - Eicosapentaenoic acid inhibits oxidation of high density lipoprotein particles in a manner distinct from docosahexaenoic acid. AB - The omega-3 fatty acid eicosapentaenoic acid (EPA) reduces oxidation of ApoB containing particles in vitro and in patients with hypertriglyceridemia. EPA may produce these effects through a potent antioxidant mechanism, which may facilitate LDL clearance and slow plaque progression. We hypothesize that EPA antioxidant effects may extend to ApoA-containing particles like HDL, potentially preserving certain atheroprotective functions. HDL was isolated from human plasma and incubated at 37 degrees C in the absence (vehicle) or presence of EPA and/or DHA; 5.0 or 10.0 MUM each. Samples were then subjected to copper-induced oxidation (10 MUM). HDL oxidation was inhibited similarly by EPA and DHA up to 1 h. EPA (10 MUM) maintained significant HDL oxidation inhibition of 89% (0.622 +/- 0.066 MUM MDA; p < .001) at 4 h, with continued inhibition of 64% at 14 h, vs. vehicle (5.65 +/- 0.06 to 2.01 +/- 0.10 MUM MDA; p < .001). Conversely, DHA (10 MUM) antioxidant benefit was lost by 4 h. At a lower concentration (5 MUM), EPA antioxidant activity remained at 81% (5.53 +/- 0.15 to 1.03 +/- 0.10 MUM MDA; p < .001) at 6 h, while DHA lost all antioxidant activity by 4 h. The antioxidant activity of EPA was preserved when combined with an equimolar concentration of DHA (5 MUM each). EPA pretreatment prevented HDL oxidation in a dose-dependent manner that was preserved over time. These results suggest unique lipophilic and electron stabilization properties for EPA as compared to DHA with respect to inhibition of HDL oxidation. These antioxidant effects of EPA may enhance certain atheroprotective functions for HDL. PMID- 29331378 TI - Loss of zebrafish Smyd1a interferes with myofibrillar integrity without triggering the misfolded myosin response. AB - Sarcomeric protein turnover needs to be tightly balanced to assure proper assembly and renewal of sarcomeric units within muscle tissues. The mechanisms regulating these fundamental processes are only poorly understood, but of great clinical importance since many cardiac and skeletal muscle diseases are associated with defective sarcomeric organization. The SET- and MYND domain containing protein 1b (Smyd1b) is known to play a crucial role in myofibrillogenesis by functionally interacting with the myosin chaperones Unc45b and Hsp90alpha1. In zebrafish, Smyd1b, Unc45b and Hsp90alpha1 are part of the misfolded myosin response (MMR), a regulatory transcriptional response that is activated by disturbed myosin homeostasis. Genome duplication in zebrafish led to a second smyd1 gene, termed smyd1a. Morpholino- and CRISPR/Cas9-mediated knockdown of smyd1a led to significant perturbations in sarcomere structure resulting in decreased cardiac as well as skeletal muscle function. Similar to Smyd1b, we found Smyd1a to localize to the sarcomeric M-band in skeletal and cardiac muscles. Overexpression of smyd1a efficiently compensated for the loss of Smyd1b in flatline (fla) mutant zebrafish embryos, rescued the myopathic phenotype and suppressed the MMR in Smyd1b-deficient embryos, suggesting overlapping functions of both Smyd1 paralogs. Interestingly, Smyd1a is not transcriptionally activated in Smyd1b-deficient fla mutants, demonstrating lack of genetic compensation despite the functional redundancy of both zebrafish Smyd1 paralogs. PMID- 29331381 TI - Clinical Outcomes of First-line Abiraterone Acetate or Enzalutamide for Metastatic Castration-resistant Prostate Cancer After Androgen Deprivation Therapy + Docetaxel or ADT Alone for Metastatic Hormone-sensitive Prostate Cancer. AB - BACKGROUND: The CHAARTED (ChemoHormonal Therapy Versus Androgen Ablation Randomized Trial for Extensive Disease in Prostate Cancer) and STAMPEDE (Systemic Therapy in Advancing or Metastatic Prostate Cancer: Evaluation of Drug Efficacy) trials showed that the addition of docetaxel (D) to androgen deprivation therapy (ADT) prolonged longevity of men with metastatic hormone-sensitive prostate cancer (mHSPC). However, the impact of upfront D on subsequent therapies is still unexplored. As abiraterone acetate (AA) and enzalutamide (E) are the most commonly used first-line treatment for metastatic castration-resistant prostate cancer (mCRPC), we aimed to assess whether they maintained their efficacy after ADT+D versus ADT alone. PATIENTS AND METHODS: A cohort of patients with mCRPC treated between 2014 and 2017 with first-line AA or E for mCRPC was identified from 3 hospitals' institutional review board-approved databases. Patients were classified by use of D for mHSPC. This time frame was chosen as ADT+D became a valid therapeutic option for mHSPC in 2014, and it inherently entailed a short follow-up time on AA/E. The endpoints included overall survival from ADT start, overall survival from AA/E start, and time to AA/E start from ADT start. Differences between groups were assessed using the log-rank test. RESULTS: Of the 102 patients with mCRPC identified, 50 (49%) had previously received ADT alone, while 52 (51%) had ADT+D. No statistically significant difference in any of the evaluated outcomes was observed between the 2 cohorts. Yet, deaths in the ADT+D group were 12 versus 21 in the ADT alone, after a median follow-up of 24.4 and 29.8 months, respectively. CONCLUSION: In a cohort of ADT/ADT+D-treated patients with mCRPC with short times to first-line AA/E and follow-up, the efficacy of AA/E is similar regardless of previous use of D. PMID- 29331382 TI - Improved Human Pharmacokinetic Prediction of Hepatically Metabolized Drugs With Species-Specific Systemic Clearance. AB - Accurate prediction of human pharmacokinetics (PK) is important for the choice of promising compounds in humans. As the predictability of human PK by an empirical approach is low for drugs with species-specific PK, the utility of a physiologically based pharmacokinetic (PBPK) model was verified using 16 hepatically metabolized reference drugs. After the prediction method for total clearance (CLtot) and distribution volume at steady state (Vdss) in the conventional PBPK model had been optimized, plasma concentrations following a single oral administration of each reference drug to healthy volunteers were simulated, and the prediction accuracy for human PK was compared between empirical approaches and the optimized PBPK model. In the drugs with low species specific CLtot, there was little difference in predictability for maximum concentration (Cmax), time to maximum plasma concentration (Tmax), and area under the curve (AUC) (absolute average fold error: 1.3-2.4). In contrast, the optimized PBPK model predicted Cmax and AUC of the drugs with high species specific CLtot with lower absolute average fold error (Cmax and AUC: 2.8 and 3.2, respectively) than those of the empirical approach (Cmax and AUC: 2.6-4.9 and 3.9 10.7, respectively). Therefore, the optimized PBPK model is useful for human PK prediction of drugs with species-specific CLtot. PMID- 29331383 TI - Population Pharmacokinetics of High-Dose Methotrexate in Patients With Primary Central Nervous System Lymphoma. AB - The intra- and inter-individual variances of methotrexate (MTX) pharmacokinetics are extremely large, and the pharmacokinetic property of MTX in patients with primary central nervous system lymphoma (PCNSL) is unestablished. A total of 701 MTX plasma concentrations from 98 patients with PCNSL under high-dose MTX therapy were used to develop the population pharmacokinetic (popPK) model of MTX by using the nonlinear mixed-effects modeling method. A 2-compartment model was employed to describe the pharmacokinetic property of MTX. In the final popPK model, inclusion of serum creatinine and body surface area significantly reduced objective function value for clearance over the base model (p <0.001), and inclusion of age significantly reduced objective function value for distribution volume of central compartment (Vc) over the base model (p <0.001). In the final popPK model, the inter-individual clearance = 6.67 * (SCR/68.1)-0.48 * (BSA/1.75)1.17; Vc = 24.46 * (age/57.16)0.81. The precision of all parameters was acceptable (relative standard error <28.61%). Bootstrap and visual predictive check results indicated that the final popPK model was stable with acceptable predictive ability. The popPK model may be useful for personalized medication in PCNSL patients under high-dose MTX therapy. Further studies are warranted to confirm the results. PMID- 29331384 TI - Evaluative feedback delivery and the factors that affect success. AB - This study examines the factors that can affect the credibility, influence, and utility of evaluative feedback. These factors include the delivery strategy, accuracy, and type (positive/negative) of feedback provided. In this study over 500 participants were asked to complete a task, and were then randomly assigned to different conditions with varied feedback delivery methods, feedback accuracy, and types of feedback (positive/negative). Then they were asked questions about the feedback's credibility, influence, and utility. PMID- 29331387 TI - Tumor associated macrophages and angiogenesis dual-recognizable nanoparticles for enhanced cancer chemotherapy. AB - Tumor-associated macrophages (TAMs) and angiogenesis are increasingly considered as the pivotal factors that affect tumor progress. Herein, we developed the paclitaxel (PTX)-loaded nanoparticles (NP/PTX) and decorated it with an innovative peptide YI (YINP/PTX) for simultaneously targeting delivery of drug to TAMs and angiogenesis. We demonstrated that the modification of YI peptide significantly enhanced the internalization of nanoparticles by cells and accumulation of nanoparticles in tumor tissues, but down regulated the distribution of them in normal tissues especially the liver. We also made a confirmation that the YI peptide decorated nanoparticles had an excellent co localization with TAMs and angiogenesis in vivo. Finally, in the HT-26 colorectal tumor-bearing mice, a pharmacodynamic evaluation was performed and results showed that the YINP/PTX was more effective than other PTX formulations in anti-tumor growth. These results together suggested that the prepared nanoparticles are promising in targeting delivery of chemotherapeutics to tumor microenvironment for enhancing tumor therapy effect. PMID- 29331385 TI - Guidelines of care for the management of basal cell carcinoma. AB - Basal cell carcinoma (BCC) is the most common form of human cancer, with a continually increasing annual incidence in the United States. When diagnosed early, the majority of BCCs are readily treated with office-based therapy, which is highly curative. In these evidence-based guidelines of care, we provide recommendations for the management of patients with BCC, as well as an in-depth review of the best available literature in support of these recommendations. We discuss biopsy techniques for a clinically suspicious lesion and offer recommendations for the histopathologic interpretation of BCC. In the absence of a formal staging system, the best available stratification based on risk for recurrence is reviewed. With regard to treatment, we provide recommendations on treatment modalities along a broad therapeutic spectrum, ranging from topical agents and superficially destructive modalities to surgical techniques and systemic therapy. Finally, we review the available literature and provide recommendations on prevention and the most appropriate follow-up for patients in whom BCC has been diagnosed. PMID- 29331386 TI - Guidelines of care for the management of cutaneous squamous cell carcinoma. AB - Cutaneous squamous cell carcinoma (cSCC) is the second most common form of human cancer and has an increasing annual incidence. Although most cSCC is cured with office-based therapy, advanced cSCC poses a significant risk for morbidity, impact on quality of life, and death. This document provides evidence-based recommendations for the management of patients with cSCC. Topics addressed include biopsy techniques and histopathologic assessment, tumor staging, surgical and nonsurgical management, follow-up and prevention of recurrence, and management of advanced disease. The primary focus of these recommendations is on evaluation and management of primary cSCC and localized disease, but where relevant, applicability to recurrent cSCC is noted, as is general information on the management of patients with metastatic disease. PMID- 29331388 TI - E4BP4 inhibits AngII-induced apoptosis in H9c2 cardiomyoblasts by activating the PI3K-Akt pathway and promoting calcium uptake. AB - The bZIP transcription factor E4BP4 is a survival factor that is known to be elevated in diseased heart and promote cell survival. In this study the role of E4BP4 on angiotensin-II (AngII)-induced apoptosis has been examined in in vitro cell model. H9c2 cardiomyoblast cells that overexpressed E4BP4 were exposed to AngII to observe the cardio-protective effects of E4BP4 on hypertension related apoptosis. The results from TUNEL assays revealed that E4BP4 significantly attenuated AngII-induced apoptosis. Further analysis by Western blot and RT-PCR showed that E4BP4 inhibited AngII-induced IGF-II mRNA expression and cleavage of caspase-3 through the PI3K-Akt pathway. In addition, E4BP4 enhanced calcium reuptake into the sacroplasmic reticulum by down-regulating PP2A and by up regulating the phosphorylation of PKA and PLB proteins. Our findings indicate that E4BP4 functions as a survival factor in cardiomyoblasts by inhibiting IGF-II transcription and by regulating calcium cycling. PMID- 29331389 TI - Capn4 promotes colorectal cancer cell proliferation by increasing MAPK7 through activation of the Wnt/beta-Catenin pathway. AB - Increasing evidence has suggested that Capn4 is upregulated and functions as a potential tumor promoter in several human cancer types. However, the potential biological roles and regulatory mechanisms of Capn4 in colorectal cancer (CRC) remains unclear. Here, we found that Capn4 expression was elevated in CRC tissues than adjacent noncancerous tissues. Additionally, we also found that overexpression of Capn4 is significantly correlated with tumor progression and poor survival in CRC patients. Furthermore, our experimental data revealed that increased expression of Capn4 was observed in CRC cell lines and ectopic expression of Capn4 significantly enhanced in vitro cell proliferation, whereas knockdown of Capn4 suppressed CRC cells growth in vitro and in vivo. Moreover, our results indicate that Capn4 promotes cell proliferation by increasing MAPK7 expression, which has been reported to control the proliferation of many cancers. Mechanistically, Capn4 upregulates MAPK7 expression through activation of the Wnt/beta-Catenin pathway in CRC cells. Therefore, we identified a tumorigenic role of Capn4 in CRC and suggested a potential therapeutic target for CRC patients. PMID- 29331390 TI - The TET2/E-cadherin/beta-catenin regulatory loop confers growth and invasion in hepatocellular carcinoma cells. AB - The poor outcome of hepatocellular carcinoma (HCC) is mainly due to the development of fast growth, invasion and metastasis. The role of TET2 has been implicated in some cancer types, but its role and mechanisms in HCC remains elusive. In this study, our findings indicated that TET2 expression frequently increased in HCC and that TET2 expressional upregulation correlated with HCC progression. TET2 knockdown inhibited HCC cells proliferation in vitro and growth in vivo, and inhibited the invasion potential of HCC cells. Mechanically, TET2 knockdown upregulated E-cadherin expression and then attenuated beta-catenin transactivation in HCC cells. TET2 repressed E-cadherin expression via recruited HDAC1 to E-cadherin promoter to reduce the H3K9Ac and H4K16Ac levels. Moreover, beta-catenin signaling transcriptionally regulated TET2 expression to form a positive feedback in HCC cells. These findings indicate that the dysregulation of TET2/E-cadherin/beta-catenin regulatory loop is a critical oncogenic event in HCC progression. PMID- 29331391 TI - microRNA-mediated regulation of splicing factors SRSF1, SRSF2 and hnRNP A1 in context of their alternatively spliced 3'UTRs. AB - SRSF1, SRSF2 and hnRNP A1 are splicing factors that regulate the expression of oncogenes and tumor suppressors. SRSF1 and SRSF2 contribute to the carcinogenesis in the kidney. Despite their importance, the mechanisms regulating their expression in cancer are not entirely understood. Here, we investigated the microRNA-mediated regulation of SRSF1, SRSF2 and hnRNP A1 in renal cancer. The expression of microRNAs predicted to target SRSF1, SRSF2 and hnRNP A1 was disturbed in renal tumors compared with controls. Using qPCR, Western blot/ICC and luciferase reporter system assays we identified microRNAs that contribute to the regulation of expression of SRSF1 (miR-10b-5p, miR-203a-3p), SRSF2 (miR-183 5p, miR-200c-3p), and hnRNP A1 (miR-135a-5p, miR-149-5p). Silencing of SRSF1 and SRSF2 enhanced the expression of their targeting microRNAs. miR-183-5p and miR 200c-3p affected the expression of SRSF2-target genes, TNFRSF1B, TNFRSF9, CRADD and TP53. 3'UTR variants of SRSF1 and SRSF2 differed by the presence of miRNA binding sites. In conclusion, we identified a group of microRNAs that contribute to the regulation of expression of SRSF1, SRSF2 and hnRNP A1. The microRNAs targeting SRSF1 and SRSF2 are involved in a regulatory feedback loop. microRNAs miR-183-5p and miR-200c-3p that target SRSF2, affect the expression of genes involved in apoptotic regulation. PMID- 29331392 TI - What gynaecologists need to master: Consensus on medical expertise outcome of pan European postgraduate training in obstetrics and gynecology. PMID- 29331395 TI - Tyrosine hydroxylase as a sentinel for central and peripheral tissue responses in Parkinson's progression: Evidence from clinical studies and neurotoxin models. AB - Parkinson's disease (PD) is a common neurodegenerative disease worldwide. While the typical motor symptoms of PD are well known, the lesser known non-motor symptoms can also greatly impact the patient's quality of life. These symptoms often appear before motor impairment, therefore identifying biomarkers that may predict PD risk or pathology has been a major and challenging endeavour. Given that the loss of dopamine, and its rate-limiting enzyme tyrosine hydroxylase (TH) occurs in PD, the expression and accompanying post-translational changes in TH during PD progression could yield insight into the disruption of cellular signalling occurring in the CNS, and also in peripheral tissues wherein catecholamine function plays a role. Furthermore, changes in expression and phosphorylation of TH in the brain and periphery can potentially reveal how TH stability and function are compromised in PD. As such, these changes can reveal how catecholamine synthesis capacity is gradually compromised and how changes in cellular signalling may govern the functional status of remaining catecholaminergic neurons. This review summarises the findings of clinical PD and neurotoxin models of PD that assessed TH expression or phosphorylation in catecholaminergic pathways in the brain and relevant peripheral tissues. We propose that establishing similar changes in TH expression and function in the CNS and periphery of established neurotoxin models can be a potential reference for comparison to changes in TH in human peripheral tissues. These changes in TH expression and phosphorylation may have predictive validity to estimate risk of PD progression before motor impairment is evident. PMID- 29331393 TI - Oral health considerations for pediatric patients with sickle cell disease. PMID- 29331396 TI - Autophagy in ischemic stroke. AB - Autophagy is a self-eating cellular catabolic pathway, through which long-lived proteins, damaged organelles and misfolded proteins are degraded and recycled for the maintenance of cellular homeostasis and normal cellular functions. Autophagy plays an important homeostatic role in the regulation of cell survival. Accumulating evidence shows that autophagy is activated in various cell types in the brain such as neurons, glia cells, and brain microvascular cells upon ischemic stroke. However, the exact role and molecular mechanisms of autophagy process that is implicated in ischemic stroke have yet to be elucidated. This review aims to provide a comprehensive view of the regulation of autophagy in neurons, glia cells, and brain microvascular cells in response to ischemia stress. We also review the recent advance on the understanding of the involvement of autophagy in the pathological process during cerebral ischemic preconditioning, perconditioning and postconditioning. We propose a crosstalk between autophagy, necroptosis, and apoptosis that contribute to ischemic stroke. In addition, we discuss the interactions between autophagy and oxidative stress, mitochondrial dysfunction and endoplasmic reticulum stress. PMID- 29331397 TI - Persistent hyperparathyroidism as a risk factor for long-term graft failure: the need to discuss indication for parathyroidectomy. AB - BACKGROUND: Although a successful kidney transplant (KTx) improves most of the mineral and bone disorders (MBD) produced by chronic kidney disease (CKD), hyperparathyroidism may persist (pHPT). Current guidelines recommend parathyroidectomy if serum parathormone is persistently elevated 1 year after KTx, because pHPT has been recently associated with poor graft outcomes. However, whether patients with pHPT and adequate renal function are at risk for long-term graft failure is unknown. METHODS: Longitudinal follow-up of 911 adults submitted to KTx between January 2005 and December 2014, with estimated glomerular filtration rate (eGFR) >= 30 mL/min 1 year after surgery. Clinical and laboratory data were collected from electronic database. Graft failure was defined as return to dialysis. RESULTS: Overall, 62% of the patients were classified as having pHPT 1 year after KTx. After a mean follow-up time of 47 months, there were 59 graft failures (49 in pHPT and 10 in non-pHPT group, P = .003). At last follow-up, death-censored graft survival was lower in the pHPT group (P = .009), even after adjustment for age at KTx, donor age, donor type, acute rejection, parathyroidectomy, and eGFR at 1 year after transplantation (odds ratio [OR] 1.99; 1.004-3.971; P = .049). A PTH of 150 pg/mL at 6 months was the best cutoff to predict pHPT at 1 year (specificity = 92.1%). CONCLUSION: Having pHPT after a successful KTx increases the long-term risk of death-censored graft failure. This result highlights the need for better recognition and management of CKD-MBD before and during the first year after KTx, and opens a discussion on the more appropriate timing to perform parathyroidectomy. PMID- 29331399 TI - Discussion. PMID- 29331398 TI - Critical differences between elective and emergency surgery: identifying domains for quality improvement in emergency general surgery. AB - OBJECTIVE: The objective of our study was to characterize providers' impressions of factors contributing to disproportionate rates of morbidity and mortality in emergency general surgery to identify targets for care quality improvement. BACKGROUND: Emergency general surgery is characterized by a high-cost burden and disproportionate morbidity and mortality. Factors contributing to these observed disparities are not comprehensively understood and targets for quality improvement have not been formally developed. METHODS: Using a grounded theory approach, emergency general surgery providers were recruited through purposive criterion-based sampling to participate in semi-structured interviews and focus groups. Participants were asked to identify contributors to emergency general surgery outcomes, to define effective care for EGS patients, and to describe operating room team structure. Interviews were performed to thematic saturation. Transcripts were iteratively coded and analyzed within and across cases to identify emergent themes. Member checking was performed to establish credibility of the findings. RESULTS: A total of 40 participants from 5 academic hospitals participated in either individual interviews (n = 25 [9 anesthesia, 12 surgery, 4 nursing]) or focus groups (n = 2 [15 nursing]). Emergency general surgery was characterized by an exceptionally high level of variability, which can be subcategorized as patient-variability (acute physiology and comorbidities) and system-variability (operating room resources and workforce). Multidisciplinary communication is identified as a modifier to variability in emergency general surgery; however, nursing is often left out of early communication exchanges. CONCLUSION: Critical variability in emergency general surgery may impact outcomes. Patient-variability and system-variability, with focus on multidisciplinary communication, represent potential domains for quality improvement in this field. PMID- 29331400 TI - Locally advanced pancreas cancer: Staging and goals of therapy. AB - BACKGROUND: Patients with locally advanced pancreatic cancer have historically been considered inoperable. The purpose of this report was to determine resectability rates for patients with locally advanced pancreatic cancer based on our recently described definitions of type A and type B locally advanced pancreatic cancer. METHODS: An institutional prospective pancreas cancer database was queried for consecutive patients with locally advanced pancreatic cancer treated between January 2009 and June 2017. All pretreatment imaging was re reviewed and patients were categorized as locally advanced pancreatic cancer type A or type B. Demographics, induction therapy, resection type, and outcomes were reviewed. RESULTS: We identified 108 consecutive patients; 12 were excluded from analysis due to the absence of available pretreatment imaging or they had not yet completed all intended neoadjuvant therapy. Of the remaining 96 patients (45 type A, 51 type B), disease progression occurred in 19 (20%) during induction therapy and 30 (31%) were deemed inoperable at final preoperative restaging. Therefore, 47 (49%) of 96 patients were taken to surgery and 40 (42%) underwent successful resection (28 [62%] of 45 type A and 12 [24%] of 51 type B); an RO resection was achieved in 32 (80%). Metastatic disease was found intraoperatively (6 at laparoscopy, 1 at laparotomy) in 7 (15%) of 47 patients. There were no mortalities; 6 (15%) patients experienced major postoperative complications. Resected patients had a median overall survival of 38.9 months. CONCLUSION: Locally advanced pancreatic cancer can be dichotomized into type A and B with distinctly different probabilities of completing all therapy to include surgery; thereby allowing goals of therapy to be established at the time of diagnosis. Multimodality therapy that includes surgery can be accomplished in selected patients with locally advanced pancreatic cancer and is associated with a median overall survival that approximates earlier stages of disease. (Surgery 2017;160:XXX-XXX.). PMID- 29331401 TI - Preoperative dipstick albuminuria and other urine abnormalities predict acute kidney injury and patient outcomes. AB - BACKGROUND: It is unclear whether pathologic findings on preoperative urinalysis are associated with the risk of postoperative acute kidney injury (AKI). Therefore, we performed a retrospective review to investigate this association. METHODS: We assessed the clinical significance of preoperative dipstick urinalysis in a 10-year surgery cohort from a tertiary hospital in Korea. Patients without available information on perioperative serum creatinine levels or kidney injury prior to surgery were excluded. Preoperative dipstick urinalysis parameters, including albuminuria, hematuria, pyuria, and others were studied. The primary outcome was postoperative acute kidney injury. Secondary outcomes were postoperative 1-year mortality and progression of poor kidney function parameters. RESULTS: We enrolled 40,090 patients. The presence of dipstick albuminuria was associated with an increased risk of postoperative AKI (adjusted odds ratio 1.47 [1.29-1.66], P < .001), and the association showed a dose response relationship. High specific gravity was significantly associated with increased risk of AKI (adjusted odds ratio 1.30 [1.04-1.63], P = .02). Furthermore, in patients with postoperative AKI, those with baseline albuminuria had a worse prognosis with regard to 1-year mortality (adjusted hazard ratio 2.81 [1.56-5.09], P < .001) and persistent renal function impairment (adjusted odds ratio 2.07 [1.21-3.46], P = .007), independent of estimated glomerular filtration rate values. Patients with baseline hematuria and pyuria also had an inferior postoperative AKI prognosis when compared to those without the urinalysis abnormalities. CONCLUSION: Baseline dipstick urinalysis may predict postoperative AKI and may be significantly associated with prognosis after surgery. (Surgery 2017;160:XXX-XXX.). PMID- 29331402 TI - Tailored surgical treatment of duodenal polyposis in familial adenomatous polyposis syndrome. AB - BACKGROUND: To review our experience in patients undergoing operative treatment for duodenal polypoisis associated with familial adenomatous polyposis with an emphasis on operative approach and long-term outcomes. METHODS: Duodenal polypoisis associated with familial adenomatous polyposis patients undergoing operative treatment were studied retrospectively excluding patients with preoperative duodenal cancer. RESULTS: Of 767 patients in the database, 63 (8.2%) patients underwent operative treatment: 42 (67%) pancreas-sparing duodenectomy, 15 (24%) pancreatoduodenectomy, and 6 (9.5%) segmental duodenal resection; the majority for Spigelman stages III and IV polyposis. Overall 9.6% had adenocarcinoma postoperatively (28.6% in the pancreatoduodenectomy group; P = .01). The proportion of Spigelman stages III and IV with cancer were 9.5% and 6.5%, respectively. Pathologic upgrade to cancer in patients with low grade dysplasia and high-grade dysplasia on preoperative biopsy was 5.7% and 6.7%, respectively (P = .13). At a median follow-up of 16 years, 7.7% needed a second duodenal polypoisis associated with familial adenomatous polyposis-related operation. Progression to high grade dysplasia or cancer in the stomach occurred in 15.4% of patients. Median overall survival and recurrence-free survival was at least 16 years and 15.6 years. No significant group-based differences were noted on follow-up. CONCLUSION: The majority of patients with duodenal polypoisis associated with familial adenomatous polyposis can achieve long-term, cancer-free survival with organ-preserving approaches (pancreas-sparing-duodenectomy and segmental-duodenal-resection) with survival not dependent on the type of resection. PMID- 29331403 TI - Anatomy of change: a Kodak moment. PMID- 29331404 TI - Reliability and validity of the adapted Resistance Training Skills Battery for Children. AB - OBJECTIVES: Resistance training (RT) is emerging as a training modality to improve motor function and facilitate physical activity participation in children across the motor proficiency spectrum. Although RT competency assessments have been established and validated among adolescent cohorts, the extent to which these methods are suitable for assessing children's RT skills is unknown. This project aimed to assess the psychometric properties of the adapted Resistance Training Skills Battery for Children (RTSBc), in children with varying motor proficiency. DESIGN: Repeated measures design with 40 participants (M age=8.2+/ 1.7years) displaying varying levels of motor proficiency. METHODS: Participants performed the adapted RTSBc on two occasions, receiving a score for their execution of each component, in addition to an overall RT skill quotient child (RTSQc). Cronbach's alpha, intra-class correlation (ICC), Bland-Altman analysis, and typical error were used to assess test-retest reliability. To examine construct validity, exploratory factor analysis was performed alongside computing correlations between participants' muscle strength, motor proficiency, age, lean muscle mass, and RTSQc. RESULTS: The RTSBc displayed an acceptable level of internal consistency (alpha=0.86) and test-retest reliability (ICC range=0.86 0.99). Exploratory factor analysis supported internal test structure, with all six RT skills loading strongly on a single factor (range 0.56-0.89). Analyses of structural validity revealed positive correlations for RTSQc in relation to motor proficiency (r=0.52, p<0.001) and strength scores (r=0.61, p<0.001). CONCLUSIONS: Analyses revealed support for the construct validity and test-retest reliability of the RTSBc, providing preliminary evidence that the RTSBc is appropriate for use in the assessment of children's RT competency. PMID- 29331405 TI - Reliability and Validity of the Turkish Version of the Consensus Auditory Perceptual Evaluation of Voice (CAPE-V). AB - OBJECTIVES: The main purpose of this study was to culturally adapt the Consensus Auditory-Perceptual Evaluation of Voice (CAPE-V) to Turkish and to evaluate its internal consistency, validity, and reliability. MATERIALS AND METHODS: The Turkish version of CAPE-V was developed, and with the use of a prospective case control design, the voice recordings of 130 participants were collected according to CAPE-V protocol. Auditory-perceptual evaluation was conducted according to CAPE-V and Grade, Roughness, Breathiness, Asthenia, and Strain (GRBAS) scale by two ear, nose, and throat specialists and two speech and language therapists. The different types of voice disorders, classified as organic and functional disorders, were compared in terms of their CAPE-V scores. RESULTS: The overall severity parameter had the highest intrarater and inter-reliability values for all the participants. For all four raters, the differences in the six CAPE-V parameters between the study and the control groups were found to be statistically significant. Among the correlations for the comparable parameters of the CAPE-V and the GRBAS scales, the highest correlation was found between the overall severity-grade parameters. There was no difference found between the organic and functional voice disorders in terms of the CAPE-V scores. CONCLUSIONS: The Turkish version of CAPE-V has been proven to be a reliable and valid instrument to use in the auditory-perceptual evaluation of voice. For the future application of this study, it would be important to investigate whether cepstral measures correlate with the auditory-perceptual judgments of dysphonia severity collected by a Turkish version of the CAPE-V. PMID- 29331406 TI - Effect of Auditory-Perceptual Training With Natural Voice Anchors on Vocal Quality Evaluation. AB - PURPOSE: To analyze the effects of auditory-perceptual training with anchor stimuli of natural voices on inter-rater agreement during the assessment of vocal quality. STUDY DESIGN: This is a quantitative nature study. METHODS: An auditory perceptual training site was developed consisting of Programming Interface A, an auditory training activity, and Programming Interface B, a control activity. Each interface had three stages: pre-training/pre-interval evaluation, training/interval, and post-training/post-interval evaluation. Two experienced evaluators classified 381 voices according to the GRBASI scale (G-grade, R roughness, B-breathiness, A-asthenia, S-strain, I-instability). Voices were selected that received the same evaluation by both evaluators: 57 voices for evaluation and 56 for training were selected, with varying degrees of deviation across parameters. Fifteen inexperienced evaluators were then selected. In the pre-, post-training, pre-, and postinterval stages, evaluators listened to the voices and classified them via the GRBASI scale. In the stage interval evaluators read a text. In the stage training each parameter was trained separately. Evaluators analyzed the degrees of deviation of the GRBASI parameters based on anchor stimuli, and could only advance after correctly classifying the voices. To quantify inter-rater agreement and provide statistical analyses, the AC1 coefficient, confidence intervals, and percentage variation of agreement were employed. RESULTS: Except for the asthenia parameter, decreased agreement was observed in the control condition. Improved agreement was observed with auditory training, but this improvement did not achieve statistical significance. CONCLUSION: Training with natural voice anchors suggest an increased inter-rater agreement during perceptual voice analysis, potentially indicating that new internal references were established. PMID- 29331407 TI - Decreased health-related quality of life in children and adolescents with autoimmune hepatitis. AB - OBJECTIVE: The objective of this study was to evaluate the health-related quality of life in children and adolescents with autoimmune hepatitis. METHODS: A cross sectional assessment with the Pediatric Quality of Life Inventory 4.0 (PedsQL 4.0) was completed for 80 patients with autoimmune hepatitis and 45 healthy controls. Demographic data, prednisone dose, disease remission state, disease severity, and abdominal pain were also evaluated. RESULTS: Based on the child self-reports, physical, emotional, school, and total scores were significantly lower in autoimmune hepatitis patients when compared with controls (p<0.05). Based on the parental reports, only the physical and total scores were significantly lower in autoimmune hepatitis patients versus controls (p<0.05). Further analysis in autoimmune hepatitis patients with abdominal pain in the last month revealed significantly lower physical, social, and total median scores (p<0.05). No differences were observed based on disease remission state or disease severity (p>0.05). Autoimmune hepatitis patients who received a prednisone dose below 0.16mg/kg/day at the time of the interview showed significantly higher physical scores than those who received a dose similar to or above 0.16mg/kg/day (87.5 [50-100] vs. 75 [15.63-100], p=0.006). CONCLUSIONS: Reduced scores in the physical, emotional, and school domains were observed in pediatric autoimmune hepatitis patients compared to control patients. Abdominal pain and corticosteroid dose negatively influenced the health-related quality of life in children and adolescents with autoimmune hepatitis. PMID- 29331408 TI - Long-term craniofacial morphology in young adults treated for a non-syndromal UCLP: A systematic review. AB - Minimizing mid-facial growth impairment is one of the treatment goals in cleft lip and palate surgery. As growth of the maxilla extends into young adulthood, long-term evaluation is essential to make a comprehensive assessment of a treatment protocol. There are numerous treatment approaches for cleft lip/palate surgery, and most have the characteristic distinction between either an early or a late cleft palate closure. PRISMA guidelines were applied to explore the quality of the current literature and to identify treatment factors influencing long-term cephalometric outcomes. The literature search was conducted in Pubmed, The Cochrane Library and Embase. We included studies evaluating cephalometric outcomes (SNA and ANB values on 2D cephalograms) in UCLP patients with a mean age of 16 years and older. Studies with an inadequate description of the timing of surgery were excluded. 17 studies comprising 906 patients were selected and included for critical appraisal. Treatment protocols differed considerably among the included studies and inconsistent methodology was common. Eight studies applied a one-stage procedure, 11 studies performed a two-stage reconstruction, and five studies made use of a vomer flap. Applying a multivariate model, we did not identify any treatment factors that significantly influenced growth (SNA/ANB values), except for the method of inclusion, suggesting the presence of significant selection bias within the studies. The current literature remains inadequate for evidence-based decision making and to advise parents if an early or late palate closure leads to a more favorable maxillary outgrowth. This manuscript will propose guidelines and recommended quality criteria for future studies. PMID- 29331409 TI - Spreader graft placement: Location, location, location. PMID- 29331410 TI - Implementing CRISPR-Cas technologies in conventional and non-conventional yeasts: Current state and future prospects. AB - Within five years, the CRISPR-Cas system has emerged as the dominating tool for genome engineering, while also changing the speed and efficiency of metabolic engineering in conventional (Saccharomyces cerevisiae and Schizosaccharomyces pombe) and non-conventional (Yarrowia lipolytica, Pichia pastoris syn. Komagataella phaffii, Kluyveromyces lactis, Candida albicans and C. glabrata) yeasts. Especially in S. cerevisiae, an extensive toolbox of advanced CRISPR related applications has been established, including crisprTFs and gene drives. The comparison of innovative CRISPR-Cas expression strategies in yeasts presented here may also serve as guideline to implement and refine CRISPR-Cas systems for highly efficient genome editing in other eukaryotic organisms. PMID- 29331411 TI - Tailoring cyanobacterial cell factory for improved industrial properties. AB - Photosynthetic biomanufacturing provides a promising solution for sustainable production of biofuels and biochemicals. Cyanobacteria are among the most promising microbial platforms for the construction of photosynthetic cell factories. Metabolic engineering of cyanobacteria has enabled effective photosynthetic synthesis of diverse natural or non-natural metabolites, while commercialization of photosynthetic biomanufacturing is usually restricted by process and economic feasibilities. In actual outdoor conditions, active cell growth and product synthesis is restricted to narrow light exposure windows of the day-night cycles and is threatened by diverse physical, chemical, and biological environmental stresses. For biomass harvesting and bioproduct recovery, energy and cost consuming processing and equipment is required, which further decreases the economic and environmental competitiveness of the entire process. To facilitate scaled photosynthetic biomanufacturing, lots of efforts have been made to engineer cyanobacterial cell properties required by robust & continual cultivation and convenient & efficient recovery. In this review, we specifically summarized recently reported engineering strategies on optimizing industrial properties of cyanobacterial cells. Through systematically re-editing the metabolism, morphology, mutualism interaction of cyanobacterial chassis cells, the adaptabilities and compatibilities of the cyanobacterial cell factories to the industrial process could be significantly improved. Cell growth and product synthesis of the tailored cyanobacterial cells could be expanded and maintained at night and in stressful environments, while convenient biomass harvesting could also be expected. For developing more feasible cyanobacterial photosynthetic biomanufacturing in large scale, we here propose the importance of tailoring industrial properties of cyanobacteria and outline the directions that should be exploited in the future. PMID- 29331412 TI - Anti-leukemic effects of PPARgamma ligands. AB - The peroxisome proliferator-activated receptor (PPAR) gamma, a subtype of PPARs, is a member of the nuclear receptor family. PPARgamma and its ligands contribute to various types of diseases including cancer. Given that currently developed therapies against leukemia are not very effective or safe, PPARgamma ligands have been shown to be a new class of compounds with the potential to treat hematologic malignancies, particularly leukemia. The capability of PPARgamma ligands to induce apoptosis, inhibit proliferation, and promote differentiation of leukemia cells suggests it has significant potential as a drug against leukemia. However, the specific mechanisms and molecules involved are not well-understood, although a number of PPARgamma ligands with anti-leukemic effects have been identified. This may explain why PPARgamma ligands have not been widely evaluated in clinical trials. To fill the gaps in the lack of understanding of specific anti-leukemic processes of PPARgamma ligands and further adapt these molecules as anti-leukemic agents, this review describes previous studies of the anti-leukemic effects of PPARgamma ligands. PMID- 29331413 TI - eEF-2 Kinase-targeted miR-449b confers radiation sensitivity to cancer cells. AB - The roles of microRNA in regulation of various biological processes and in modulation of therapeutic effects have been widely appreciated. In this study, we found a positive correlation between miR-449 b expression and radiation sensitivity in cancer cells and in tumor specimens from patients. We showed that eEF-2 kinase, a negative regulator of global protein synthesis, is a target of miR-449 b. Introducing a miR-449 b mimic into cancer cells led to suppression of eEF-2 kinase expression, leading to increases of protein synthesis and depletion of cellular ATP. Further, we demonstrated that the miR-449 b mimic rendered the cancer cells more sensitive to ionizing radiation both in vitro (cell culture) and in vivo (animal xenograft model). Moreover, the radiation sensitivity conferred by miR-449 b could be blunted by cycloheximide, an inhibitor of protein synthesis, or by direct delivery of ATP liposome, supporting eEF-2 kinase as a mediator of the radio-sensitizing effects of miR-449 b. These results indicate that miR-449 b, which is frequently down-regulated in radio-resistant cancers, may represent a new critical determinant of radio-sensitivity. PMID- 29331415 TI - Nogo-B receptor promotes epithelial-mesenchymal transition in non-small cell lung cancer cells through the Ras/ERK/Snail1 pathway. AB - Nogo-B receptor (NgBR) is a specific receptor of Nogo-B that regulates vascular remodeling and angiogenesis. Previously, we found that NgBR promotes the membrane translocation and activation of Ras in breast cancer cells and enhances the chemoresistance of hepatocellular carcinoma cells to 5-fluorouracil. However, the role of NgBR in lung cancer has not yet been elucidated. In the present study, we found that NgBR knockdown inhibited epithelial-mesenchymal transition (EMT) in non-small cell lung cancer (NSCLC) cells in vitro and metastasis of NSCLC cells in vivo. In contrast, NgBR overexpression promoted EMT in and lung metastasis of NSCLC cells. At the molecular level, NgBR modulated the expression of EMT-related proteins and enhanced the protein expression of Snail1, a crucial transcription factor that represses epithelial cell protein marker E-cadherin. Moreover, we found that NgBR overexpression promoted the membrane localization of Ras and activation of downstream MEK/ERK signaling pathway and that NgBR knockdown by using a specific shRNA inversely affected the expression of EMT-related proteins in NSCLC cells. Thus, our results provide novel insights on the regulatory role of NgBR in the metastasis of NSCLC that should be investigated further for developing a therapeutic strategy for treating patients with NSCLC. PMID- 29331414 TI - Inhibition of FASN and ERalpha signalling during hyperglycaemia-induced matrix specific EMT promotes breast cancer cell invasion via a caveolin-1-dependent mechanism. AB - Since disturbed metabolic conditions such as obesity and diabetes can be critical determinants of breast cancer progression and therapeutic failure, we aimed to determine the mechanism responsible for their pro-oncogenic effects. Using non invasive, epithelial-like ERalpha-positive MCF-7 and T47D human breast cancer cells we found that hyperglycaemia induced epithelial to mesenchymal transition (EMT), a key programme responsible for the development of metastatic disease. This was demonstrated by loss of the epithelial marker E-cadherin together with increases in mesenchymal markers such as vimentin, fibronectin and the transcription factor SLUG, together with an enhancement of cell growth and invasion. These phenotypic changes were only observed with cells grown on fibronectin and not with those plated on collagen. Analyzing metabolic parameters, we found that hyperglycaemia-induced, matrix-specific EMT promoted the Warburg effect by upregulating glucose uptake, lactate release and specific glycolytic enzymes and transporters. We showed that silencing of fatty acid synthase (FASN) and the downstream ERalpha, which we showed previously to mediate hyperglycaemia-induced chemoresistance in these cells, resulted in suppression of cell growth: however, this also resulted in a dramatic enhancement of cell invasion and SLUG mRNA levels via a novel caveolin-1-dependent mechanism. PMID- 29331416 TI - Deubiquitinating enzyme PSMD14 promotes tumor metastasis through stabilizing SNAIL in human esophageal squamous cell carcinoma. AB - The epithelial-mesenchymal transition (EMT) transcription factor SNAIL is associated with distant metastasis and poor prognosis of esophageal squamous cell carcinoma (ESCC) patients. The proteolysis of SNAIL is mediated by the ubiquitin proteasome system. Several E3 ligases have been characterized to promote SNAIL ubiquitination and degradation. However, the reverse process - deubiquitination of SNAIL remains largely unknown. In this study, we performed a mass spectrometry to examine the interaction between SNAIL and deubiquitinating enzyme(s). Subsequently, the deubiquitinating enzyme PSMD14 was identified to target SNAIL for deubiquitination and stabilization. Furthermore, knockdown of PSMD14 significantly blocks SNAIL-induced EMT and then suppresses tumor cell migration and invasion in vitro and tumor metastasis in vivo. In addition, the high expression level of PSMD14 predicts poor prognosis for esophageal cancer patients. These findings suggest PSMD14 as a bona fide deubiquitinating enzyme to regulate SNAIL at the post-translational level and provide a promising therapeutic strategy against tumor metastasis of esophageal cancer. PMID- 29331417 TI - Down-regulation of RIP3 potentiates cisplatin chemoresistance by triggering HSP90 ERK pathway mediated DNA repair in esophageal squamous cell carcinoma. AB - Receptor interacting protein kinase 3 (RIP3) is a critical regulator of programmed necrotic cell death. Here, we observed that RIP3 was significantly down-regulated in esophageal cancer. And its remaining expression was associated with better response to chemotherapy and prolonged survival. Notably, re expression of kinase-dead RIP3 also restored cisplatin sensitivity, suggesting that some roles of RIP3 beyond necroptosis may be involved in cisplatin-based chemosensitivity. To investigate the mechanisms, a large-scale quantitative proteomics study was performed after cisplatin treatment in RIP3-knockdown cells. In total, approximately 7000 protein groups were confidently identified, with a false discovery rate of 0.21% at the protein level. Of these proteins, 685 displayed RIP3-dependent changes in abundance. Bioinformatics analyses indicated that DNA repair pathway was stimulated after RIP3 depletion. Functional studies showed that deficient RIP3 upregulated FOSL1 and POLD1 through activation of the HSP90/CDC37 complex and ERK phosphorylation in multiple cell lines. Furthermore, via inhibition of the HSP90/CDC37 complex, ERK and FOSL1 reversed the cisplatin resistance phenotype. These results suggest that RIP3 regulates cisplatin sensitivity through both pronecrotic and non-necrotic functions. RIP3 may be a potential marker for predicting chemosensitivity. PMID- 29331418 TI - Non-coding RNAs in cancer stem cells. AB - Cancer stem cells (CSCs) have been shown to play a key role in tumor initiation, progression, metastasis, and therapy resistance. Despite their potential clinical importance, the mechanism of CSC regulation is not well understood. Recent evidence suggests that different types of non-coding RNAs (ncRNA), such as microRNA (miRNA) and long non-coding RNA (LncRNA), play a role in regulating CSC growth and replication by modulating transcription factors and downstream signaling pathways activated in CSCs. Here, we review the recent major findings about how they affect stem cell quality acquisition and maintenance in CSCs, as well as metastasis and therapy resistance. Drawing connections between such discoveries could be conducive to the development of novel ncRNA-based therapeutics that can selectively target CSCs and reduce rates of cancer recurrence. PMID- 29331419 TI - The therapeutic potential of human adipose-derived mesenchymal stem cells producing CXCL10 in a mouse melanoma lung metastasis model. AB - Interferon gamma-induced protein 10 kDa (IP-10) is a potent chemoattractant and has been suggested to enhance antitumor activity and mediate tumor regression through multiple mechanisms of action. Multiple lines of evidence have indicated that genetically-modified adult stem cells represent a potential source for cell based cancer therapy. In the current study, we assessed therapeutic potential of human adipose derived mesenchymal stem cells (hADSC) genetically-modified to express IP-10 for the treatment of lung metastasis in an immunocompetent mouse model of metastatic melanoma. A Piggybac vector encoding IP-10 was employed to transfect hADSC ex vivo. Expression and bioactivity of the transgenic protein from hADSCs expressing IP-10 were confirmed prior to in vivo studies. Our results indicated that hADSCs expressing IP-10 could inhibit the growth of B16F10 melanoma cells and significantly prolonged survival. Immunohistochemistry analysis, TUNEL assay and western blot analysis indicated that hADSCs expressing IP-10 inhibited tumor cell growth, hindered tumor infiltration of Tregs, restricted angiogenesis and significantly prolonged survival. In conclusion, our results demonstrated that targeting metastatic tumor sites by hADSC expressing IP 10 could reduce melanoma tumor growth and lung metastasis. PMID- 29331420 TI - Dacomitinib antagonizes multidrug resistance (MDR) in cancer cells by inhibiting the efflux activity of ABCB1 and ABCG2 transporters. AB - The development of multidrug resistance (MDR) to chemotherapy remains a major challenge in the treatment of cancer. Numerous mechanisms have been recognized that cause MDR, but one of the most important mechanisms is overexpression of adenosine triphosphate (ATP)-binding cassette (ABC) transporters, through which the efflux of various anticancer drugs against their concentration gradients is powered by ATP. In recent years, small molecular tyrosine kinase inhibitors (TKIs) have been developed for treatment in various human cancers overexpressing epidermal growth factor receptor (EGFR). At the same time, some TKIs have been shown to be capable of inhibiting ABC transporter-mediated MDR. Dacomitinib (PF 00299804) is a second generation, irreversible TKI, which has shown positive anticancer activities in some preclinical and clinical trials. As many TKIs are substrates or inhibitors of ABC transporters, this study investigates whether dacomitinib could interact with ABC subfamily members that mediate MDR, including ABCB1 (P-gp), ABCG2 (BCRP) and ABCC1 (MRP1). The results showed that dacomitinib at 1.0 MUM significantly reversed drug resistance mediated by ABCB1 and ABCG2, but not ABCC1, doing so by antagonizing the drug efflux function in ABCB1- and ABCG2-overexpressing cell lines. The reversal effect on ABCB1-overexpressing cells is more potent than that on ABCG2-overexpressing cells. In addition, dacomitinib at reversal concentration affected neither the protein expression level nor the localization of ABCB1 and ABCG2. Therefore, the mechanisms of this modulating effect are likely to be the following: first, as an inhibitor of ABCB1 or ABCG2 transporters, dacomitinib binds to drug-substrate site in transmembrane domains (TMD) stably in a noncompetitive manner; or second, dacomitinib inhibits ATPase activity and maintains the stability of TMD conformation in a concentration-dependent manner thereby inhibiting the drug efflux function of ABCB1 or ABCG2 transporter. This study provides a useful combinational therapeutic strategy with dacomitinib and substrates of ABCB1 and/or ABCG2 transporters in ABCB1- or ABCG2-overexpressing cancers. PMID- 29331421 TI - Hyperglycaemia-induced miR-301a promotes cell proliferation by repressing p21 and Smad4 in prostate cancer. AB - Hyperglycaemia promotes the development of Prostate cancer (PCa). However, the roles of miRNAs in this disease process and the underlying mechanisms are largely unknown. In this study, we recruited 391 PCa patients in China and found that PCa patients with high level blood glucose (>=100 mg/dL) trended to have high Gleason score (GS >= 7). miRNA-301a levels were significantly higher in prostate cancer than that in normal prostate tissues. Hyperglycaemia or high glucose treatment induced miR-301a expression in prostate tissues or PCa cell lines. miR-301a suppressed the expression of p21 and Smad4, and subsequently promoted G1/S cell cycle transition and cell proliferation in vitro and xenograft growth in nude mice in vivo. Furthermore, knockdown of p21 and Smad4 mimicked the effects of miR 301a overexpression. Restoration of p21 and smad4 could interrupt the effects of miR-301a overexpression. Importantly, inhibition of miR-301a severely blocked high glucose-induced PCa cell growth both in vitro and in vivo. These results revealed a novel molecular link between hyperglycaemia and PCa. The miR-301a plays an important role in the hyperglycaemia-associated cancer growth, and represents a novel therapeutic target for PCa. PMID- 29331422 TI - FePt-Cys nanoparticles induce ROS-dependent cell toxicity, and enhance chemo radiation sensitivity of NSCLC cells in vivo and in vitro. AB - FePt-Cys nanoparticles (FePt-Cys NPs) have been well used in many fields, despite their poor solubility and stability. We synthetized a cysteine surface modified FePt NPs, which exhibited good solubility, stability and biocompatibility. We explored the insight mechanisms of the antitumor effects of this new nanoparticle system in lung cancer cells. In the in vitro study, FePt-Cys NPs induced a reactive oxygen species (ROS) burst, which suppressed the antioxidant protein expression and induced cell apoptosis. Furthermore, FePt-Cys NPs prevented the migration and invasion of H1975 and A549 cells. These changes were correlated with a dramatic decrease in MMP-2/9 expression and enhanced the cellular attachment. We demonstrated that FePt-Cys NPs promoted the effects of chemo radiation through activation of the caspase system and impairment of DNA damage repair. In the in vivo study, no severe allergies or drug-related deaths were observed and FePt-Cys NPs showed a synergistic effect with cisplatin and radiation. In conclusion, with good safety and efficacy, FePt-Cys NPs could therefore be potential sensitizers for chemoradiotherapy. PMID- 29331423 TI - Thymidylate synthase prompts metastatic progression through the dTMP associated EMT process in pancreatic ductal adenocarcinoma. AB - As a fundamental metabolic enzyme, anti-Thymidylate synthase (TS) strategy has been shown to be an effective therapy for human cancers. However, the genuine effects of TS in pancreatic ductal adenocarcinoma (PDA) are still conflicting. We systemically assessed the prognostic value and whether TS associated with malignant progression in PDA. Protein and mRNA expression level of TS were evaluated in en bloc PDA samples, the prognostic effect of TS expressed in cytoplasm or cytonuclear was determined separately in the first time. The impact of TS on tumor cell behaviors was assessed in in vitro assays, and the TS associated metastatic potential was further determined in two different PDA metastatic models. The retrospective clinical analysis firstly demonstrated that tumor cytonuclear TS expression was positively correlated with lymphatic metastasis and negatively correlated with the overall survival (OS) in PDA patients. The subsequent experiments further confirmed that TS depletion can effectively abate EMT (epithelial to mesenchymal) process in in vitro and decline most of the metastatic lesions in two different PDA mice models, and the deoxythymidine monophosphate (dTMP) biosynthesis malfunction resulted imbalanced dNTP pools may be the fundamental causation. Collectively, the present study suggested the prospective strategy of combined anti-TS scheme for metastatic PDA, and we strongly suggest further clinical standardization research with a large cohort to verify the prognostic value and the therapeutic potential of TS in PDA. PMID- 29331424 TI - Ultra-narrow surface lattice resonances in plasmonic metamaterial arrays for biosensing applications. AB - When excited over a periodic metamaterial lattice of gold nanoparticles (~ 100nm), localized plasmon resonances (LPR) can be coupled by a diffraction wave propagating along the array plane, which leads to a drastic narrowing of plasmon resonance lineshapes (down to a few nm full-width-at-half-maximum) and the generation of singularities of phase of reflected light. These phenomena look very promising for the improvement of performance of plasmonic biosensors, but conditions of implementation of such diffractively coupled plasmonic resonances, also referred to as plasmonic surface lattice resonances (PSLR), are not always compatible with biosensing arrangement implying the placement of the nanoparticles between a glass substrate and a sample medium (air, water). Here, we consider conditions of excitation and properties of PSLR over arrays of glass substrate-supported single and double Au nanoparticles (~ 100-200nm), arranged in a periodic metamaterial lattice, in direct and Attenuated Total Reflection (ATR) geometries, and assess their sensitivities to variations of refractive index (RI) of the adjacent sample dielectric medium. First, we identify medium (PSLRair, PSLRwat for air and water, respectively) and substrate (PSLRsub) modes corresponding to the coupling of individual plasmon oscillations at medium- and substrate-related diffraction cut-off edges. We show that spectral sensitivity of medium modes to RI variations is determined by the lattice periodicity in both direct and ATR geometries (~ 320nm per RIU change in our case), while substrate mode demonstrates much lower sensitivity. We also show that phase sensitivity of PSLR can exceed 105 degrees of phase shift per RIU change and thus outperform the relevant parameter for all other plasmonic sensor counterparts. We finally demonstrate the applicability of surface lattice resonances in plasmonic metamaterial arrays to biosensing using standard streptavidin-biotin affinity model. Combining advantages of nanoscale architectures, including drastic concentration of electric field, possibility of manipulation at the nanoscale etc, and high phase and spectral sensitivities, PSLRs promise the advancement of current state-of-the-art plasmonic biosensing technology toward single molecule label-free detection. PMID- 29331425 TI - Low-picomolar, label-free procalcitonin analytical detection with an electrolyte gated organic field-effect transistor based electronic immunosensor. AB - Herein a label-free immunosensor based on electrolyte-gated organic field-effect transistor (EGOFET) was developed for the detection of procalcitonin (PCT), a sepsis marker. Antibodies specific to PCT were immobilized on the poly-3 hexylthiophene (P3HT) organic semiconductor surface through direct physical adsorption followed by a post-treatment with bovine serum albumin (BSA) which served as the blocking agent to prevent non-specific adsorption. Antibodies together with BSA (forming the whole biorecognition layer) served to selectively capture the procalcitonin target analyte. The entire immunosensor fabrication process was fast, requiring overall 45min to be completed before analyte sensing. The EGOFET immunosensor showed excellent electrical properties, comparable to those of bare P3HT based EGOFET confirming reliable biosensing with bio functional EGOFET immunosensor. The detection limit of the immunosensor was as low as 2.2pM and within a range of clinical relevance. The relative standard deviation of the individual calibration data points, measured on immunosensors fabricated on different chips (reproducibility error) was below 7%. The developed immunosensor showed high selectivity to the PCT analyte which was evident through control experiments. This report of PCT detection is first of its kind among the electronic sensors based on EGOFETs. The developed sensor is versatile and compatible with low-cost fabrication techniques. PMID- 29331426 TI - Hybrid porous thin films: Opportunities and challenges for sensing applications. AB - In this paper, the scientific progress in the field of thin film materials and their associated sensing technologies are described comprehensively to address the directions for future research and developments as per the need of modern-day technologies. To begin with, we briefly discussed the fundamental synthesis approaches for advanced thin films with an emphasis on the properties necessary for controlled fabrication (e.g., the elemental ratio and spatial arrangement). Subsequently, we explored the control, characterization, and optimization of hybrid porous thin films with respect to diverse sensing applications. The application of hybrid porous thin film materials has also been discussed in relation to the mechanisms used for biological, optical, electrical, acoustic, and other advanced sensing techniques (e.g., surface-enhanced Raman scattering (SERS)). Finally, conclusions are drawn to highlight the current status of thin film-based sensing technology along with its opportunities and challenges. PMID- 29331427 TI - Water-soluble mercury ion sensing based on the thymine-Hg2+-thymine base pair using retroreflective Janus particle as an optical signaling probe. AB - Herein, we report an optical sensing platform for mercury ions (Hg2+) in water based on the integration of Hg2+-mediated thymine-thymine (T-T) stabilization, a biotinylated stem-loop DNA probe, and a streptavidin-modified retroreflective Janus particle (SA-RJP). Two oligonucleotide probes, including a stem-loop DNA probe and an assistant DNA probe, were utilized. In the absence of Hg2+, the assistant DNA probe does not hybridize with the stem-loop probe due to their T-T mismatch, so the surface-immobilized stem-loop DNA probe remains a closed hairpin structure. In the presence of Hg2+, the DNA forms a double-stranded structure with the loop region via Hg2+-mediated T-T stabilization. This DNA hybridization induces stretching of the stem-loop DNA probe, exposing biotin. To translate these Hg2+-mediated structural changes in DNA probe into measurable signal, SA RJP, an optical signaling label, is applied to recognize the exposed biotin. The number of biospecifically bound SA-RJPs is proportional to the concentration of Hg2+, so that the concentration of Hg2+ can be quantitatively analyzed by counting the number of RJPs. Using the system, a highly selective and sensitive measurement of Hg2+ was accomplished with a limit of detection of 0.027nM. Considering the simplified optical instrumentation required for retroreflection based RJP counting, RJP-assisted Hg2+ measurement can be accomplished in a much easier and inexpensive manner. Moreover, the detection of Hg2+ in real drinking water samples including tap and commercial bottled water was successfully carried out. PMID- 29331428 TI - Heating enhanced sensitive and selective electrochemical detection of Hg2+ based on T-Hg2+-T structure and exonuclease III-assisted target recycling amplification strategy at heated gold disk electrode. AB - A sensitive and selective electrochemical Hg2+ sensor was developed based on T Hg2+-T structure and exonuclease (Exo) III -assisted target recycling amplification at heated gold disk electrode (HAuDE). First, a DNA signal probe P1 was for the first time designed and labeled with ferrocene (Fc) near the attached SH-5'-end, so as to shorten the distance between Fc and the electrode and enhance the initial current of Fc compared with that labeled at the 3'-end far from the electrode. Then the signal amplification was achieved by Exo III-assisted Hg2+ recycling. Briefly, the P1 was complementary to the assistant DNA P2 except the T T mismatches. In the presence of Hg2+, the P1 self-assembled on the HAuDE could hybridize with P2 and form DNA duplex with blunt end at the 3'- terminus, triggering Exo III to stepwise digest mononucleotides from the 3'-terminus of P1, ultimately liberating Hg2+ and P2, which could be "recycled", resulting in the digestion of a large amount of P1 and significantly decrease the amount of Fc. The electrochemical signal difference before and after digestion was proportional to the Hg2+ concentration. Furthermore, during the digestion period, the Exo III activity could be significantly increased by elevating the electrode temperature, great improving the sensitivity and efficiency for Hg2+ detection. A detection limit of 6.2 pM (S/N = 3) could be obtained with an electrode temperature of 40 degrees C during 60min digestion period, which was lower ca. two magnitudes than that at 0 degrees C and one magnitude than that at 25 degrees C. PMID- 29331429 TI - Paper-based fluorescent sensor via aggregation induced emission fluorogen for facile and sensitive visual detection of hydrogen peroxide and glucose. AB - Hydrogen peroxide (H2O2), an important reactive oxygen species (ROS), is related to the oxidative stress in organisms, and plays important roles in a variety of cellular activities as well. So it is of crucial importance to develop sensitive and accurate sensing strategies to detect H2O2 in biological systems. Herein, by taking advantage of the unique emission characteristics of aggregation induced emission (AIE) fluorogens, we proposed a non-enzymatic fluorescence platform for facile and sensitive detection of H2O2, both in solution state using fluorescence spectrometer and on paper-based sensor via visual inspection. Through the reaction between L-cysteine and H2O2, the fluorescence of TPE-M-L, an AIE fluorogen formed between maleimide-functionalized tetraphenylethene (TPE-M) and L cysteine, is quenched, and highly sensitive non-enzymatic H2O2 assay is readily carried out. The limit of detection (LOD) of 10nM in solution state and 2.5MUM on paper-based sensor were obtained for H2O2 detection, which were superior or comparable to those previously reported in literature. Moreover, by integrating glucose oxidase with the AIE fluorogen of TPE-M-L, highly sensitive and selective glucose detection was also conveniently achieved both in solution state and on paper-based sensor by the as-proposed strategy, with the LODs of 50nM in solution state and 10MUM via visual observation, much better than those obtained by other fluorescence methods. The as-proposed sensing strategy was also successfully applied to assay glucose in human serum samples. Therefore, the paper-based fluorescence sensor exhibits the advantages of simple fabrication, high sensitivity and portability, and has great potential to be applied in on-site assay of H2O2 and glucose in real samples. PMID- 29331431 TI - Robust synchronization of master-slave chaotic systems using approximate model: An experimental study. AB - Robust synchronization of master slave chaotic systems are considered in this work. First an approximate model of the error system is obtained using the ultra local model concept. Then a Continuous Singular Terminal Sliding-Mode (CSTSM) Controller is designed for the purpose of synchronization. The proposed approach is output feedback-based and uses fixed-time higher order sliding-mode (HOSM) differentiator for state estimation. Numerical simulation and experimental results are given to show the effectiveness of the proposed technique. PMID- 29331430 TI - Disposable inkjet-printed electrochemical platform for detection of clinically relevant HER-2 breast cancer biomarker. AB - Rapidly fabricated, disposable sensor platforms hold tremendous promise for point of-care detection. Here, we present an inexpensive (< $0.25) fully inkjet printed electrochemical sensor with integrated counter, reference, and working electrodes that is easily scalable for commercial fabrication. The electrochemical sensor platform featured an inkjet printed gold working 8-electrode array (WEA) and counter electrode (CE), along with an inkjet -printed silver electrode that was chlorinated with bleach to produce a Ag/AgCl quasi-reference electrode (RE). As proof of concept, the electrochemical sensor was successfully applied for detection of clinically relevant breast cancer biomarker Human Epidermal Growth Factor Receptor 2 (HER-2). Capture antibodies were bound to a chemically modified surface on the WEA and placed into a microfluidic device. A full sandwich immunoassay was constructed following a simultaneous injection of target protein, biotinylated antibody, and polymerized horseradish peroxide labels into the microfluidic device housing the WEA. With an ultra fast assay time, of only 15mins a clinically relevant limit of detection of 12pgmL-1 was achieved. Excellent reproducibility and sensitivity were observed through recovery assays preformed in human serum with recoveries ranging from 76% to 103%. These easily fabricated and scalable electrochemical sensor platforms can be readily adapted for multiplex detection following this rapid assay protocol for cancer diagnostics. PMID- 29331432 TI - Sliding mode control for a two-joint coupling nonlinear system based on extended state observer. AB - A two-joint coupling nonlinear system driven by pneumatic artificial muscles is introduced in this paper. A sliding mode controller with extended state observer is proposed to cope with nonlinearities and disturbances for the two-joint coupling nonlinear system. In addition, convergence of the extended state observer is presented and stability analysis of the closed-loop system is also demonstrated with the sliding mode controller. Lastly, some experiments are carried out to show the reality effectiveness of the proposed method. PMID- 29331433 TI - Receding horizon Hinfinity guaranteed cost tracking control for microwave heating medium with temperature-dependent permittivity. AB - This paper considers the temperature spectrum tracking control of microwave heating model, in the presence of asymmetrical input saturation, nonhomogeneous Neumann boundary condition and temperature-dependent permittivity. The sufficient condition for the existence of receding horizon Hinfinity guaranteed cost control is proposed based on the derived finite-dimensional ordinary differential equation (ODE) error model. Furthermore, by on-line updating and solving linear matrix inequalities (LMIs) optimization problem, the constrained tracking controller can be obtained in the sense of minimizing Hinfinity norm and satisfying the quadratic cost performance. The proposed control strategy is implemented on a one-dimensional cavity heating model and its performance is evaluated through the simulation. PMID- 29331434 TI - Fault diagnosis of rolling element bearing using a new optimal scale morphology analysis method. AB - Periodic transient impulses are key indicators of rolling element bearing defects. Efficient acquisition of impact impulses concerned with the defects is of much concern to the precise detection of bearing defects. However, transient features of rolling element bearing are generally immersed in stochastic noise and harmonic interference. Therefore, in this paper, a new optimal scale morphology analysis method, named adaptive multiscale combination morphological filter-hat transform (AMCMFH), is proposed for rolling element bearing fault diagnosis, which can both reduce stochastic noise and reserve signal details. In this method, firstly, an adaptive selection strategy based on the feature energy factor (FEF) is introduced to determine the optimal structuring element (SE) scale of multiscale combination morphological filter-hat transform (MCMFH). Subsequently, MCMFH containing the optimal SE scale is applied to obtain the impulse components from the bearing vibration signal. Finally, fault types of bearing are confirmed by extracting the defective frequency from envelope spectrum of the impulse components. The validity of the proposed method is verified through the simulated analysis and bearing vibration data derived from the laboratory bench. Results indicate that the proposed method has a good capability to recognize localized faults appeared on rolling element bearing from vibration signal. The study supplies a novel technique for the detection of faulty bearing. PMID- 29331435 TI - Complications of chronic total occlusion percutaneous coronary intervention: Subepicardial hematoma. AB - A 67-year-old man with coronary artery disease and previous coronary underwent successful Guideliner reverse CART percutaneous coronary intervention of a chronic total occlusion of the right coronary artery. He later developed evidence of myocardial ischemia, and imaging, including angiogram, echocardiogram, and cardiac computed tomography revealing active dye extravasation from the previously normal RV marginal branches, in addition to a large subepicardial hematoma. Despite these dramatic findings, the patient remained hemodynamically stable and pain-free, with resolving ECG changes. Thus, with close clinical observation, the patient did not undergo pericardiocentesis or other invasive procedures, and was discharged home safely. This review evaluates the complications of CTO-PCI, with a focus on subepicardial hematomas, discussing diagnosis and management of this highly morbid complication. PMID- 29331436 TI - Jetstream Atherectomy System treatment of femoropopliteal arteries: Results of the post-market JET Registry. AB - OBJECTIVES: To report on procedural, safety, and effectiveness outcomes of real world practice with the Jetstream rotational atherectomy system for treatment of femoropopliteal artery lesions. BACKGROUND: Safety and effectiveness of treatment with the Jetstream device has been demonstrated in clinical trials, but outcomes during real-world clinical practice have yet to be examined. METHODS: 241 patients (66% male, mean age 67years, 41% diabetes; Rutherford 1-3) with de novo or restenotic (non-stent) femoropopliteal lesions >=4cm in length were recruited. Major adverse events (MAE), defined as amputation, death, target lesion/vessel revascularization (TLR/TVR), myocardial infarction, or angiographic distal embolization that required a separate intervention; and binary restenosis were assessed at 30days and 12months. RESULTS: The mean (+/-SD) lesion length was 16.4+/-13.6cm; 35% of patients received adjunctive stents. Procedural success was achieved for 98.3% of lesions. The 30-day MAE rate was 2% (5/219; 2 TLR/TVR and 3 distal embolization); there were no deaths, index limb amputations, or myocardial infarctions. At 12months, the overall estimated freedom from TLR/TVR was 81.7% and 77.2% (44/57) of patients were free from duplex ultrasound-assessed restenosis. Efficacy and patency in a diabetic subset were similar to those of the overall cohort, while maintaining a similar safety profile. CONCLUSION: In a cohort reflecting real-world practice, the Jetstream Atherectomy System demonstrated a high procedural success rate with a low rate of complications and reinterventions, especially given the relatively long lesions studied. PMID- 29331437 TI - Influence of operator experience and PCI volume on transfemoral access techniques: A collaboration of international cardiovascular societies. AB - INTRODUCTION: Transfemoral access (TFA) is widely used for coronary angiography and percutaneous coronary intervention (PCI). The influence of operator age, gender, experience, and procedural volume on performance of femoral arterial access has not been studied. METHODS: A survey instrument was developed and distributed via e-mail from professional societies to interventional cardiologists worldwide from March to December 2016. RESULTS: A total of 988 physicians from 88 countries responded to the survey. TFA is the preferred approach for patients with cardiogenic shock, left main or bifurcation PCI, and procedures with mechanical circulatory support. Older (<50years: 56.4%; >=50years: 66.8%, p<0.0039) and high PCI volume operators (<100 PCI: 57.3%; 100 299 PCI: 58.7%; >=300 PCI: 64.3%, p<0.134) preferred palpation only without imaging (fluoroscopy or ultrasound (US)) for TFA. Most respondents preferred not to use micropuncture needle to puncture the femoral artery. Older (>=50years: 64.4%; <50years: 71.5%, p<0.04) and high PCI volume operators (>=300 PCI: 64.1%; 100-299 PCI: 72.6%; <100 PCI: 67.9%, p<0.072) tended not to perform femoral angiography (FA). Of those performing FA, the majority opted to do it at the end of the procedure. CONCLUSION: Despite best practice guideline recommendations, older and high PCI volume interventional cardiologists prefer not to use imaging for femoral access or perform femoral angiography during TF procedures. These data highlight opportunities to further reduce TFA complications. PMID- 29331438 TI - Characterization of surface properties of glass vials used as primary packaging material for parenterals. AB - The appropriate selection of adequate primary packaging, such as the glass vial, rubber stopper, and crimp cap for parenteral products is of high importance to ensure product stability, microbiological quality (integrity) during storage as well as patient safety. A number of issues can arise when inadequate vial material is chosen, and sole compliance to hydrolytic class I is sometimes not sufficient when choosing a glass vial. Using an appropriate pre-treatment, such as surface modification or coating of the inner vial surface after the vial forming process the glass container quality is often improved and interactions of the formulation with the surface of glass may be minimized. This study aimed to characterize the inner surface of different type I glass vials (Exp33, Exp51, Siliconized, TopLyoTM and Type I plus(r)) at the nanoscale level. All vials were investigated topographically by colorimetric staining and Scanning Electron Microscopy (SEM). Glass composition of the surface was studied by Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and X-ray Photoelectron Spectroscopy (XPS), and hydrophobicity/hydrophilicity of the inner surface was assessed by dye tests and surface energy measurements. All containers were studied unprocessed, as received from the vendor, i.e. in unwashed and non-depyrogenized condition. Clear differences were found between the different vial types studied. Especially glass vials without further surface modifications, like Exp33 and Exp51 vials, showed significant (I) vial-to-vial variations within one vial lot as well as (II) variations along the vertical axis of a single vial when studying topography and chemical composition. In addition, differences and heterogeneity in surface energy were found within a given tranche (circumferential direction) of Exp51 as well as Type I plus(r) vials. Most consistent quality was achieved with TopLyoTM vials. The present comprehensive characterization of surface properties of the different vial types may serve as basis to further guide the selection of adequate primary packaging based on the desired quality target product profile and to support studies of glass surface interactions with formulations. The proposed analytical method panel can be used for characterization of future glass vials either before delivery to the manufacturer or drug product manufacturing. PMID- 29331439 TI - Interactions of dimethylaminoethyl methacrylate copolymer with non-acidic drugs demonstrated high solubilization in vitro and pronounced sustained release in vivo. AB - Recent work demonstrated remarkable solubilization effects of methacrylate copolymer Eudragit EPO (EPO) not only with acidic drugs but interestingly also with poorly soluble basic compounds. The current work studied EPO-mediated solubilization effects first in vitro using felodipine (FLP) and tamoxifen (TMX) as model compounds. EPO-containing solutions were subsequently compared in a rat pharmacokinetic study against reference solutions and suspensions. Surprisingly, solution formulations with EPO did not result in an increased relative oral bioavailability. Exposure was reduced for both drugs and plasma-profiles of the EPO solutions showed a delayed and lower maximum plasma concentration compared to the reference formulations. This sustained in vivo release was likely due to combined effects of strong drug-polymer interactions and pH-dependent precipitation of the polymer in the rat intestine. Remarkable was that in vitro drug-polymer coprecipitates did not reveal crystalline drug by polarized light microscopy. Thus, such a formulation approach provides a rather simple opportunity to modify drug release in vivo. However, this may be rather an approach for preclinical formulations, if high peak-to-trough ratios of plasma levels are problematic regarding adverse effects related to Cmax or if plasma concentrations drop too fast below required pharmacological concentrations. PMID- 29331440 TI - The effect of bilateral eye-movements versus no eye-movements on sexual fantasies. AB - BACKGROUND AND OBJECTIVES: Bilateral eye-movements (EMs) and visual mental imagery both require working memory resources. When performed together, they compete for these resources, which can cause various forms of mental imagery to become impaired (e.g., less vivid). This study aimed to examine whether EMs impair sexual fantasies (a form of mental imagery) in the same manner. METHODS: Eighty undergraduates (40 males, 40 females) took part in four counterbalanced conditions: (1) EMs and an experience-based sexual fantasy; (2) EMs and an imagination-based sexual fantasy; (3) experience-based sexual fantasy only; and (4) imagination-based sexual fantasy only. In each condition, the vividness, emotionality, and arousability of the sexual fantasy were rated pre- and post task. All three variables were predicted to decrease in the EM conditions. RESULTS: Sexual fantasies were reported as less vivid, positive, and arousing after performing concurrent EMs relative to fantasising only, for both memory- and imagination-based sexual fantasies. There were no gender differences. Demand did not appear to account for the effects. LIMITATIONS: Self-report measures were used rather than objective measures. Working memory taxation and capacity were not directly assessed. Also, negatively appraised sexual fantasies were not targeted and a 'no intervention' control was not included. CONCLUSIONS: Bilateral EMs were effective at impairing the phenomenological properties of sexual mental imagery, extending the literature on EM effects. Given the potential clinical implications, future research should focus on validating and extending these results, for example, by targeting negatively appraised sexual fantasies (including problematic and offense-related) and incorporating a 'no intervention' condition. PMID- 29331441 TI - Poor oral intake in a late preterm twin - usual symptom with an unusual diagnosis. AB - BACKGROUND: At three weeks of age, a previous 34 weeks' gestation male infant (twin A) was transferred to our regional perinatal center (RPC) with complaints of poor oral feeding and intermittent tachypnea. Twin B was discharged at 37 weeks with an uneventful course. CASE: Twin A briefly required respiratory support but continued to have difficulty transitioning from gavage to oral feeding. Initially, his inability to feed orally was thought to be secondary to nasal congestion and prematurity, but with worsening respiratory distress he was transferred for further evaluation and management. DIAGNOSIS & CONCLUSION: On admission to RPC, the examination prompted a cardiac assessment which revealed a large aortic-pulmonary window type II. After surgery, the infant quickly improved and went home on-demand oral feeds. Cardiac lesions are more common in monochorionic twins but should be suspected in dichorionic twins especially if one twin has a normal course. PMID- 29331442 TI - Coffee consumption and risk of hypertension in the SUN Project. AB - BACKGROUND & AIMS: Evidence on coffee consumption and its association with the incidence of hypertension is still inconsistent. The aim of this study was to examine the association of regular or decaffeinated coffee consumption with the risk of developing hypertension in a middle-aged Mediterranean cohort. METHODS: The SUN Project is a prospective open cohort with more than 22,500 Spanish university graduates. For the present study, we analyzed data from 13,374 participants initially free of hypertension (mean follow-up 9.1 years). The consumption of regular and decaffeinated coffee was obtained at baseline using a previously validated semi-quantitative food frequency questionnaire. Validated, self-reported medical diagnoses of hypertension were collected biennially. We used Cox regression models to estimate hazard ratios (HR) and 95% confidence intervals (95% CI) for incident hypertension according to baseline coffee consumption. We assessed the interaction with sex and baseline adherence to the Mediterranean diet. RESULTS: Among 121,397 person-years of follow-up, a total of 1757 participants developed hypertension. Overall, coffee consumption -either caffeinated or decaffeinated- was not significantly associated with the risk of hypertension. Only among women, higher consumption of regular coffee was associated with a 26% lower risk of hypertension (>=2 cups/d vs. never/seldom, 95% CI 9%-39%; p for interaction: 0.0236). Women with a low baseline adherence to the Mediterranean diet showed the strongest risk reduction (HR >= 2 cups/d vs. never/seldom 0.58, 95% CI (0.41-0.82) p for interaction = 0.0452). CONCLUSION: In the SUN project we found an inverse association between regular coffee consumption and the risk of hypertension in women, which was strongest among women with a suboptimal food pattern (low adherence to the Mediterranean diet). PMID- 29331443 TI - Strengthen federal regulation of laboratory-developed and direct-to-consumer genetic testing. PMID- 29331444 TI - Call for action: Nurses must play a critical role to enhance health literacy. PMID- 29331445 TI - The vital role of school nurses in ensuring the health of our nation's youth. PMID- 29331446 TI - Intolerance of uncertainty: Neural and psychophysiological correlates of the perception of uncertainty as threatening. AB - Intolerance of uncertainty (IU) reflects the perception of uncertainty as threatening, regardless of the true probability of threat. IU is elevated in various forms of psychopathology, uniquely associated with anxiety and depression symptoms after controlling for related constructs, and prospectively predicts symptoms. Given the ubiquity of uncertainty in daily life and the clinical implications of IU, recent work has begun to investigate the neural and psychophysiological correlates of IU. This review summarizes the existing literature and integrates findings within a mechanistic neural model of responding to uncertainty. IU is associated with heightened reactivity to uncertainty reflected in greater activity of the anterior insula and amygdala, alterations in neural responses to rewards and errors evident in event-related potentials, a mixed pattern of startle responses to uncertain threat, and deficiencies in safety learning indexed by startle and skin conductance responding. These findings provide evidence of disruptions in several domains of responding to uncertainty, threat, and reward associated with IU that may confer risk for the development of psychopathology. Significant attention is devoted to recommendations for future research, including consideration of the complex interplay of IU with emotion regulation, cognitive control, and reward processing. PMID- 29331448 TI - Surveillance After Endovascular Treatment for Blunt Thoracic Aortic Injury. PMID- 29331451 TI - Sporotrichoid non-tuberculous mycobacterial infections following anti-TNF treatment. PMID- 29331447 TI - Sharp-wave ripples as a signature of hippocampal-prefrontal reactivation for memory during sleep and waking states. AB - It is widely believed that memories that are encoded and retrieved during waking behavior are consolidated during sleep. Recent studies on the interactions between the hippocampus and the prefrontal cortex have greatly advanced our understanding of the physiological bases of these memory processes. Although hippocampal-prefrontal network activity differs in many aspects during waking and sleep states, here we review evidence that hippocampal sharp-wave ripples (SWRs) emerge as a common neurophysiological pattern in both states, facilitating communication between these two regions via coordinated reactivation of stored memory information. We further consider whether sleep and awake reactivation mediate similar memory processes or have different mnemonic functions, and the mechanistic role of this cross-regional dialogue in learning and memory. Finally, we provide an integrated view of how these two forms of reactivation might work together to support spatial learning and memory. PMID- 29331450 TI - Mapping stimulus feature selectivity in macaque V1 by two-photon Ca2+ imaging: Encoding-model analysis of fluorescence responses to natural movies. AB - In vivo calcium (Ca2+) imaging using two-photon microscopy allows activity to be monitored simultaneously from hundreds of individual neurons within a local population. While this allows us to gain important insights into how cortical neurons represent sensory information, factors such as photo-bleaching of the Ca2+ indicator limit imaging duration (and thus the numbers of stimuli that can be tested), which in turn hampers the full characterization of neuronal response properties. Here, we demonstrate that using an encoding model combined with presentation of natural movies results in detailed characterization of receptive field (RF) properties despite the relatively short time for data collection. During presentation of natural movie clips to macaque monkeys, we recorded fluorescence signals from primary visual cortex (V1) neurons that had been loaded with a Ca2+ indicator. For each recorded neuron, we constructed an encoding model that comprised an array of motion-energy filters that tiled over the RFs. We optimized the weight of each filter's output so that the linear sum of the outputs across the filters mimicked the neuron's Ca2+-signal responses. These models were able to predict the neural responses to a different set of natural movies with a significant degree of accuracy. Moreover, the orientation tunings of neurons simulated by the model were highly correlated with those experimentally obtained when grating stimuli were presented to the monkeys. The model predictions were also consistent with what is known about spatial frequency tunings, the structure of excitatory subfields of RFs (i.e., classical RFs), and functional maps for these RF properties in V1. Further analysis revealed a new aspect of V1 functional architecture; the extent and distribution of suppressive RF subfields varied among nearby neurons, while those for excitatory subfields were shared. Thus, applying our encoding-model analysis to two-photon Ca2+ imaging of neuronal responses to natural movies provides a reliable and efficient means of analyzing a wide range of RF properties in multiple neurons imaged in a local region. PMID- 29331449 TI - Quantifying axonal responses in patient-specific models of subthalamic deep brain stimulation. AB - Medical imaging has played a major role in defining the general anatomical targets for deep brain stimulation (DBS) therapies. However, specifics on the underlying brain circuitry that is directly modulated by DBS electric fields remain relatively undefined. Detailed biophysical modeling of DBS provides an approach to quantify the theoretical responses to stimulation at the cellular level, and has established a key role for axonal activation in the therapeutic mechanisms of DBS. Estimates of DBS-induced axonal activation can then be coupled with advances in defining the structural connectome of the human brain to provide insight into the modulated brain circuitry and possible correlations with clinical outcomes. These pathway-activation models (PAMs) represent powerful tools for DBS research, but the theoretical predictions are highly dependent upon the underlying assumptions of the particular modeling strategy used to create the PAM. In general, three types of PAMs are used to estimate activation: 1) field cable (FC) models, 2) driving force (DF) models, and 3) volume of tissue activated (VTA) models. FC models represent the "gold standard" for analysis but at the cost of extreme technical demands and computational resources. Consequently, DF and VTA PAMs, derived from simplified FC models, are typically used in clinical research studies, but the relative accuracy of these implementations is unknown. Therefore, we performed a head-to-head comparison of the different PAMs, specifically evaluating DBS of three different axonal pathways in the subthalamic region. The DF PAM was markedly more accurate than the VTA PAMs, but none of these simplified models were able to match the results of the patient-specific FC PAM across all pathways and combinations of stimulus parameters. These results highlight the limitations of using simplified predictors to estimate axonal stimulation and emphasize the need for novel algorithms that are both biophysically realistic and computationally simple. PMID- 29331452 TI - Design, synthesis and evaluation of gamma-turn mimetics as LSD1-selective inhibitors. AB - Lysine-specific demethylase 1 (LSD1) is an attractive molecular target for cancer therapy. We have previously reported potent LSD1-selective inhibitors (i.e., NCD18, NCD38, and their analogs) consisting of trans-2-phenylcyclopropylamine (PCPA) or trans-2-arylcyclopropylamine (ACPA) and a lysine moiety that could form a gamma-turn structure in the active site of LSD1. Herein we report the design, synthesis and evaluation of gamma-turn mimetic compounds for further improvement of LSD1 inhibitory activity and anticancer activity. Among a series of gamma-turn mimetic compounds synthesized by a Mitsunobu-reaction-based amination strategy, we identified 1n as a potent and selective LSD1 inhibitor. Compound 1n induced cell cycle arrest and apoptosis through histone methylation in human lung cancer cells. The gamma-turn mimetics approach should offer new insights into drug design for LSD1-selective inhibitors. PMID- 29331454 TI - Reply. PMID- 29331453 TI - Are privacy-enhancing technologies for genomic data ready for the clinic? A survey of medical experts of the Swiss HIV Cohort Study. AB - PURPOSE: Protecting patient privacy is a major obstacle for the implementation of genomic-based medicine. Emerging privacy-enhancing technologies can become key enablers for managing sensitive genetic data. We studied physicians' attitude toward this kind of technology in order to derive insights that might foster their future adoption for clinical care. METHODS: We conducted a questionnaire based survey among 55 physicians of the Swiss HIV Cohort Study who tested the first implementation of a privacy-preserving model for delivering genomic test results. We evaluated their feedback on three different aspects of our model: clinical utility, ability to address privacy concerns and system usability. RESULTS: 38/55 (69%) physicians participated in the study. Two thirds of them acknowledged genetic privacy as a key aspect that needs to be protected to help building patient trust and deploy new-generation medical information systems. All of them successfully used the tool for evaluating their patients' pharmacogenomics risk and 90% were happy with the user experience and the efficiency of the tool. Only 8% of physicians were unsatisfied with the level of information and wanted to have access to the patient's actual DNA sequence. CONCLUSION: This survey, although limited in size, represents the first evaluation of privacy-preserving models for genomic-based medicine. It has allowed us to derive unique insights that will improve the design of these new systems in the future. In particular, we have observed that a clinical information system that uses homomorphic encryption to provide clinicians with risk information based on sensitive genetic test results can offer information that clinicians feel sufficient for their needs and appropriately respectful of patients' privacy. The ability of this kind of systems to ensure strong security and privacy guarantees and to provide some analytics on encrypted data has been assessed as a key enabler for the management of sensitive medical information in the near future. Providing clinically relevant information to physicians while protecting patients' privacy in order to comply with regulations is crucial for the widespread use of these new technologies. PMID- 29331455 TI - Femtosecond laser-assisted cataract surgery in pediatric patients. AB - Pediatric cataract surgery poses a significant challenge for the cataract surgeon, in part because an elastic anterior capsule can make capsulorhexis difficult. With the use of femtosecond laser-assisted cataract surgery (FLACS), however, the continuous curvilinear capsulorhexis can be made with predictable size, circular shape, centration, and accuracy. In addition, topical anesthesia can be used for the FLACS docking procedure in cooperative children above 6 years of age, using transparent adhesive polyurethane film segments. PMID- 29331456 TI - Vocalization as an indicator of estrus climax in Holstein heifers during natural estrus and superovulation. AB - The reliable detection of estrus is an important scientific and practical challenge in dairy cattle farming. Female vocalization may indicate reproductive status, and preliminary evidence suggests that this information can be used to detect estrus in dairy cattle. The aim of this study was to associate the changes in the vocalization rate of dairy heifers with behavioral estrus indicators as well as test the influence of the type of estrus (natural estrus vs. superovulation-induced estrus). We analyzed 6 predefined estrus-related behavior patterns (standing to be mounted, head-side mounting, active mounting, chin resting, being mounted while not standing, and active sniffing in the anogenital region) and vocalization rates in the peri-estrus period (day of estrus +/- 1 d) of 12 German Holstein heifers using audio-visual recordings. Each heifer was observed under natural estrus and a consecutive superovulation induced by FSH and cloprostenol. Estrus was determined by behavioral patterns and confirmed by clinical examination (vaginoscopy and ultrasound imaging of the ovaries) as well as by the concentration of peripheral progesterone. Estrus behavior and vocalization rates were analyzed in 3-h intervals (an average of 19 intervals for each heifer), and an estrus score was calculated based on the 6 behaviors. The interval with the highest estrus score (I0) was considered the estrus climax. We demonstrated similar time courses for the estrus score and vocalization rate independent of estrus type. However, in natural estrus, the maximum vocalization rate (+/-SE) occurred in the interval before estrus climax (I-1; 42.58 +/- 21.89) and was significantly higher than that in any other interval except estrus climax (I0; 27.58 +/- 9.76). During natural estrus, the vocalization rate was significantly higher within the interval before estrus climax (I-1; 42.58 +/- 21.89 vs. 11.58 +/- 5.51) than under superovulation. The results underscore the potential use of vocalization rate as a suitable indicator of estrus climax in automated estrus detection devices. Further studies and technical development are required to record and process individual vocalization rates. PMID- 29331457 TI - Effect of the concentration of circulating prolactin on dairy cows' responsiveness to domperidone injection. AB - The objective of this study was to determine whether the responsiveness of the mammary gland to prolactin (PRL) is affected by the concentration of the hormone. After 1 pre-experimental week (d -7 to -1), 18 Holstein cows in mid to late lactation were injected intramuscularly twice daily with either 0.5 mg of quinagolide (QN) or 2 mL of water (control) for 2 wk (d 1 to 14; treatment period). After the treatment period, all cows received daily subcutaneous injections of 300 mg of domperidone (DOMP) for 3 wk (d 15 to 35; DOMP period). The cows were monitored for an additional 2 wk as a posttreatment period (d 36 to 49). Blood and milk samples were collected 3 times per week. Additionally, blood samples were collected during the a.m. milking on d -4, 14, and 35. Milk production was not affected by QN during the treatment period but was increased during the DOMP and posttreatment periods in the QN cows. With respect to milk composition, the treatments affected only the protein content, which was greater in the QN cows during the treatment period. Blood PRL concentration declined during QN injections and was lower in the QN cows than in the control cows between d 5 and 14. The basal concentration of PRL was increased by DOMP injections during the DOMP and posttreatment periods but was not affected by previous QN injections. Prolactin concentration in milk was not affected by the QN treatments but was increased by DOMP injections during the DOMP and posttreatment periods. Milking-induced PRL release was decreased by QN on d 14. On d 35, milking did not induce a significant release of PRL above the baseline for both treatments. In conclusion, the results of this experiment support the contention that the mammary gland's responsiveness to PRL is modulated by the previous level of the hormone. PMID- 29331458 TI - Genetic correlations between methane production and fertility, health, and body type traits in Danish Holstein cows. AB - Our aim was to investigate the genetic correlations between CH4 production and body conformation, fertility, and health traits in dairy cows. Data were collected from 10 commercial Holstein herds in Denmark, including 5,758 cows with records for body conformation traits, 7,390 for fertility traits, 7,439 for health traits, and 1,397 with individual CH4 measurements. Methane production was measured during milking in automatic milking systems, using a sniffer approach. Correlations between CH4 and several different traits were estimated. These traits were interval between calving and first insemination, interval between first and last insemination, number of inseminations, udder diseases, other diseases, height, body depth, chest width, dairy character, top line, and body condition score. Bivariate linear models were used to estimate the genetic parameters within and between CH4 and the other traits. In general, the genetic correlations between CH4 and the traits investigated were low. The heritability of CH4 was 0.25, and ranged from 0.02 to 0.07 for fertility and health traits, and from 0.17 to 0.74 for body conformation traits. Further research with a larger data set should be performed to more accurately establish how CH4 relates to fertility, health, and body conformation traits in dairy cattle. This will be useful in the design of future breeding goals that consider the production of CH4. PMID- 29331459 TI - Garlic (Allium sativum L.) fed to dairy cows does not modify the cheese-making properties of milk but affects the color, texture, and flavor of ripened cheese. AB - Garlic and garlic components have recently been proposed as ruminal activity modulators to reduce the enteric methane emissions of ruminants, but little is known of their influence on milk coagulation properties, nutrient recovery, cheese yield, and sensorial and rheological characteristics of milk and cheese. The present study assessed the effects of garlic and diallyl sulfide supplements on dry matter intake (DMI), productive performance, milk coagulation properties, cheese yield, milk and cheese sensory profiles, and rheological characteristics. Four dairy cows were fed a total mixed ration either alone (control) or supplemented with 100 or 400 g/d of garlic cloves or 2 g/d of diallyl sulfide in 4 consecutive experimental periods in a 4 * 4 Latin square design. The diallyl sulfide dose was established to provide approximately the same amount of allyl thiosulfinate compounds as 100 g of fresh garlic cloves. The total mixed ration was composed of 0.29 corn silage, 0.23 corn-barley mixture, 0.17 sunflower soybean mixture, 0.12 alfalfa hay, 0.12 grass hay, 0.04 sugar beet pulp, and 0.02 other additives, and contained 0.253 starch, 0.130 crude protein, and 0.375 neutral detergent fiber, on a dry matter basis. Each experimental period consisted of 7 d of transition and 14 d of treatment. On d 18 and 21 of each period, milk samples (10 L) were collected from each cow for chemical analysis and cheese-making. The organoleptic properties of the milk and 63-d-ripened cheeses were assessed by a panel of 7 trained sensory evaluators. The experimental treatments had no effects on DMI, milk yield, feed efficiency (milk yield/DMI), milk coagulation properties, nutrient recovery, or cheese yield. Garlic-like aroma, taste, and flavor of milk and cheese were significantly influenced by the treatments, particularly the highest dose of garlic cloves, and we found close exponential relationships between milk and cheese for garlic-like aroma (R2 = 0.87) and garlic-like flavor (R2 = 0.79). Diallyl sulfide and 400 g/d of garlic cloves resulted in lower pH, shear force, and shear work of ripened cheeses compared with the other treatments. Garlic cloves and diallyl sulfide had opposite effects on cheese color indices. We conclude that adding 400 g/d of garlic to the feed of lactating dairy cows highly influences the sensory and rheological characteristics of cheese. PMID- 29331460 TI - Inhibition of Shigella sonnei-induced epithelial barrier disruption by surface layer associated proteins of lactobacilli from Chinese fermented food. AB - Surface-layer associated proteins (SLAP) of Lactobacillus paracasei ssp. paracasei M5-L and Lactobacillus casei Q8-L were examined to identify the functional basis for their protection within intestinal epithelial cells. The results showed that SLAP of M5-L and Q8-L remained active in a trypsin solution and retained a 45-kDa protein band, similar to that observed in controls. In contrast, under conditions of simulated gastric juice, the SLAP were partially degraded. Inhibitory effects of SLAP on adherence of Shigella sonnei to HT-29 cells were assessed with use of exclusion, competition, and replacement assays. In response to M5-L at 50 MUg/mL SLAP, an inhibition ratio of 33% was obtained, while for Q8-L at 400 MUg/mL SLAP, the inhibition ratio was 48%. Hoechst 33258 test results showed that cells infected with S. sonnei and co-incubated with SLAP of M5-L and Q8-L were only partially apoptotic, with apoptosis rates of 37.67 and 43.67%, respectively. These levels of apoptosis were substantially lower than that observed with cells infected with S. sonnei alone. In addition, the SLAP of Q8-L and M5-L reduced downstream caspase-1 activity and further modified apoptotic cell damage. Finally, SLAP of M5-L and Q8-L were also able to prevent S. sonnei-induced membrane damage by inhibiting delocalization of zonula occludens (ZO)-1 and reducing the amount of occludin produced by S. sonnei. PMID- 29331461 TI - Stabilizing vitamin D3 using the molten globule state of alpha-lactalbumin. AB - alpha-Lactalbumin (alpha-LA) is the second most abundant bovine whey protein. It has been intensively studied because of its readiness to populate the molten globular (MG) state, a partially folded state with native levels of secondary structure but loss of tertiary structure. The MG state of alpha-LA exposes a significant number of hydrophobic patches that could be used to bind and stabilize small hydrophobic molecules such as vitamin D3 (vitD). Accordingly, we tested the ability of alpha-LA to stabilize vitD in a pH interval from 7.4 to 2; over this pH interval, alpha-LA transitions from the folded state to the MG state. The MG state stabilized vitD better than the folded state and was superior to the major bovine whey protein beta-lactoglobulin (beta-LG), which is known to stabilize vitD. At pH 7.4, beta-LG and alpha-LA stabilized vitD to the same extent. Tryptophan fluorescence quenching measurements indicated that alpha-LA has one binding site at pH 7.4 but acquires an additional binding site when the pH is lowered to pH 2 to 4. Stability measurements of the vitD in the alpha-LA vitD complex at different temperatures suggest that UHT processing would lead to little loss of vitD. This study demonstrates the potential of alpha-LA as a component in vitD fortification, particularly for low pH applications. PMID- 29331462 TI - Genetic background of methane emission by Dutch Holstein Friesian cows measured with infrared sensors in automatic milking systems. AB - International environmental agreements have led to the need to reduce methane emission by dairy cows. Reduction could be achieved through selective breeding. The aim of this study was to quantify the genetic variation of methane emission by Dutch Holstein Friesian cows measured using infrared sensors installed in automatic milking systems (AMS). Measurements of CH4 and CO2 on 1,508 Dutch Holstein Friesian cows located on 11 commercial dairy farms were available. Phenotypes per AMS visit were the mean of CH4, mean of CO2, mean of CH4 divided by mean of CO2, and their log10-transformations. The repeatabilities of the log10 transformated methane phenotypes were 0.27 for CH4, 0.31 for CO2, and 0.14 for the ratio. The log10-transformated heritabilities of these phenotypes were 0.11 for CH4, 0.12 for CO2, and 0.03 for the ratio. These results indicate that measurements taken using infrared sensors in AMS are repeatable and heritable and, thus, could be used for selection for lower CH4 emission. Furthermore, it is important to account for farm, AMS, day of measurement, time of day, and lactation stage when estimating genetic parameters for methane phenotypes. Selection based on log10-transformated CH4 instead of the ratio would be expected to give a greater reduction of CH4 emission by dairy cows. PMID- 29331463 TI - Discriminating aging and protein-to-fat ratio in Cheddar cheese using sensory analysis and a potentiometric electronic tongue. AB - The objectives of this study were to evaluate the flavor and taste attributes of full-fat Cheddar cheeses with different protein-to-fat ratios (PFR) over aging time using a descriptive sensory analysis panel and a consumer panel, and to correlate these attributes with instrumental parameters obtained by the potentiometric electronic tongue. Three Cheddar cheese formulations (PFR of 0.74, 0.85, and 1.01) were produced in triplicate and composition was verified. Cheese was aged at 7.2 degrees C and evaluated at 2, 5, 8, 10, 11, and 12 mo by a trained panel (n = 10) for 8 flavor and 5 taste attributes and using an electronic tongue for 7 nonvolatile taste attributes. Cheese aged for 12 mo was also evaluated by a consumer sensory panel for liking and intensity attributes. Principal component analysis was performed to discriminate cheese based on aging time and PFR, whereas correlation between sensory and instrumental attributes was assessed using partial least squares regression. Descriptive sensory analysis of flavor and taste attributes differentiated Cheddar cheeses over aging time, but not among PFR formulations. The electronic tongue distinguished changes among cheese samples due to PFR formulation and aging time. The electronic tongue proved successful in characterizing the nonvolatile flavor components in Cheddar cheese and correlated with taste perceptions measured by descriptive sensory analysis. Consumer evaluations showed distinctive attribute profiles for the 3 PFR Cheddar cheese formulations. Overall, higher fat content was associated with increased flavor intensities in Cheddar cheese and drove consumer acceptability and purchase intent ratings. The electronic tongue detected smaller changes in tastes (bitter, metallic, salty, sour, spicy, sweet, and umami) of the 3 PFR formulations over time when compared with the trained panelists, who detected no differences, suggesting that the electronic tongue may be more sensitive to tastants than humans and may have the capability for early detection or identification of problems in a batch of cheese during aging. Results suggest taste quality of cheese may be monitored using the electronic tongue with greater sensitivity than a trained panel, and may be more objective, rapid, and cost effective than human panelists. PMID- 29331464 TI - Somatic cell count-based selection reduces susceptibility to energy shortage during early lactation in a sheep model. AB - During the transition from late gestation to early lactation ruminants experience a negative energy balance (NEB), which is considered to increase susceptibility to mammary infections. Our previous study in 2 divergent lines of sheep selected for high and low somatic cell score (SCS) suggested an association between the response to NEB and genetic susceptibility to mastitis. Forty-eight early lactation primiparous dairy ewes from the 2 SCS genetic lines were allocated to 2 homogeneous subgroups-an NEB group, which was energy restricted and received 60% of the energy requirements for 15 d, and a control-fed group-to obtain 4 balanced groups of 12 ewes: high-SCS positive energy balance, low-SCS positive energy balance, high-SCS NEB, and low-SCS NEB. High-SCS ewes showed greater weight loss and increased plasmatic concentrations of beta-hydroxybutyrate and nonesterified fatty acids than low-SCS ewes when confronted with an induced NEB. The aim of this study was to further characterize this interaction by combining transcriptomic and phenotypic data with a generalized partial least squares discriminant analysis using mixOmics package framework. A preliminary analysis using 3 blocks of phenotypes (fatty acids, weight and production, blood metabolites) revealed a high correlation between fat-to-protein ratio, beta hydroxybutyrate, and nonesterified fatty acids concentrations with milk long chain fatty acid yields. These phenotypes allowed good discrimination of the energy-restricted high-SCS ewes and confirmed a high level of adipose tissue mobilization in this group. A second analysis, which included RNA-seq data, revealed high correlations between the long-chain fatty acid yields in milk and PDK4, CPT1A, SLC25A20, KLF10, and KLF11 expression, highlighting the relationship between mobilization of body reserves and enhanced fatty acids utilization for energy production in blood cells. Finally, analysis of milk composition measured in 1,025 ewes from the 2 genetic lines over 10 yr confirmed significant higher fat-to-protein ratio in high-SCS ewes in early lactation. Altogether, our results strongly confirmed a genetic link between susceptibility to mastitis and metabolic adaptation to energy shortage. Improving genetic resistance to mastitis using SCS should be accompanied by a favorable effect on the response to metabolic stress, especially in highly stressful early lactation. Moreover, this study suggests that the fat-to-protein ratio could be used as a low-cost tool for monitoring energy balance and ketosis during this critical phase of lactation. PMID- 29331465 TI - Genome-wide association study for milk infrared wavenumbers. AB - Individual wavenumbers of the infrared (IR) spectra of bovine milk have been shown to be moderately to highly heritable. The objective of this study was to identify genomic regions associated with individual milk IR wavenumbers. This is expected to provide information about the genetic background of milk composition and give insight in the relation between IR wavenumbers and milk components. For this purpose, a genome-wide association study was performed for a selected set of 50 individual IR wavenumbers measured on 1,748 Dutch Holstein cows. Significant associations were detected for 28 of the 50 wavenumbers. In total, 24 genomic regions distributed over 16 bovine chromosomes were identified. Major genomic regions associated with milk IR wavenumbers were identified on chromosomes 1, 5, 6, 14, 19, and 20. Most of these regions also showed significant associations with fat, protein, or lactose percentage. However, we also identified some new regions that were not associated with any one of these routinely collected milk composition traits. On chromosome 1, we identified 2 new genomic regions and hypothesized that they are related to variation in milk phosphorus content and orotic acid, respectively. On chromosome 20, we identified a new genomic region that seems to be related to citric acid. Identification of genomic regions associated with milk phosphorus content, orotic acid, and citric acid suggest that the milk IR spectra contain direct information on these milk components. Consequently milk IR analyses probably can be used to predict these milk components, which have low concentrations in milk; this can lead to novel applications of milk IR spectroscopy for dairy cattle breeding and herd management. PMID- 29331466 TI - High-grain diets supplemented with phytogenic compounds or autolyzed yeast modulate ruminal bacterial community and fermentation in dry cows. AB - The feeding of concentrate-rich diets may lead to microbial imbalances and dysfermentation in the rumen. The main objective of this study was to determine the effects of supplementing phytogenic compounds (PHY) or autolyzed yeast (AY) on rumen fermentation and microbial abundance in cows intermittently fed concentrate-rich diets. The experiment was carried out as an incomplete 3 * 4 Latin square design, with 8 nonlactating rumen-fistulated Holstein-Friesian cows. The cows were randomly assigned to a concentrate diet that was either not supplemented (CON), or supplemented with PHY or AY. Each of the 4 consecutive experimental periods was composed of a 1-wk roughage-only diet (RD), 6-d gradual concentrate increase, followed by 1 wk of 65% concentrate (dry matter basis; Conc I), and 1 wk of RD and a final 2-wk 65% concentrate (dry matter basis; Conc II) phase. Digesta samples were collected from the rumen mat for bacterial 16S rRNA gene Illumina MiSeq (Illumina, Balgach, Switzerland) sequencing, and samples of particle-associated rumen liquid were obtained for measuring short-chain fatty acids, lactate, ammonia, and pH during RD (d 6), Conc I (d 19), and Conc II (d 39). The concentrate feeding caused a decrease of overall bacterial diversity indices, especially during Conc I. The genera Ruminococcus, Butyrivibrio, and Coprococcus were decreased, whereas Prevotella, Megasphaera, Lachnospira, and Bacteroides were increased in abundance. Supplementation of both feed additives increased the abundance of gram-positive and decreased that of gram-negative bacteria. Supplementation of AY enhanced cellulolytic bacteria such as Ruminococcus spp., whereas PHY decreased starch and sugar fermenters including Bacteroides spp., Shuttleworthia spp., and Syntrophococcus spp. Moreover, PHY supplementation increased butyrate percentage in the rumen in both concentrate phases. In conclusion, intermittent high-concentrate feeding altered the digesta associated rumen bacterial community and rumen fermentation with more significant alterations found in Conc I than in Conc II. The data also showed that both feed additives had the most significant modulatory effects on the bacterial community, and their subsequent fermentation, during periods of low pH. PMID- 29331468 TI - Symposium review: The influences of heat stress on bovine mammary gland function. AB - Heat stress reduces cow milk yield and results in a significant economic loss for the dairy industry. During lactation, heat stress lowers milk production by 25 to 40% with half of the decrease in milk synthesis resulting from the reduced feed intake. In vitro studies indicate that primary bovine mammary epithelial cells display greater rates of programmed cell death when exposed to high ambient temperatures, which may lead to a decrease in the total number of mammary epithelial cells in the mammary gland, partially explaining the lower milk production of lactating cows under heat stress. The function of mammary cells is also altered by heat stress. In response to heat stress, mammary cells display higher gene expression of heat shock proteins, indicating a need for cytoprotection from protein aggregation and degradation. Further, heat stress results in increased gene expression without altering protein expression of mammary epithelial cell junction proteins, and does not substantially influence the integrity of mammary epithelium. These data suggest that the mammary gland strives to maintain cell-to-cell junction integrity by synthesizing more proteins to compensate for protein losses induced by heat stress. During the dry period, heat stress negatively affects mammary gland development by reducing mammary cell proliferation before parturition, resulting in a dramatic decrease in milk production in the subsequent lactation. In addition to mammary growth, the mammary gland of the heat-stressed dry cow has reduced protein expression of autophagic proteins in the early dry period, suggesting heat stress influences mammary involution. Emerging evidence also indicates that heifers born to cows that experience late-gestation heat stress have lower milk yield during their first lactation, implying that the maternal environment may alter mammary gland development of the offspring. It is not clear if this is due to a direct epigenetic modification of prenatal mammary gland development by maternal heat stress. More research is needed to elucidate the effect of heat stress on mammary gland development and function. PMID- 29331467 TI - Canadian National Dairy Study: Herd-level milk quality. AB - The objective of this study was to estimate Canadian national milk quality parameters and estimate the bulk tank milk (BTM) prevalence of 4 mastitis pathogens, Staphylococcus aureus, Streptococcus agalactiae, Mycoplasma bovis, and Prototheca spp., on Canadian dairy farms. A questionnaire was sent to all Canadian dairy producers. Of the 1,062 producers who completed the questionnaire, 374 producers from across the country were visited and milking hygiene was assessed. Farm-level milk quality data for all Canadian dairy producers was collected from the provincial marketing boards and combined with the questionnaire and farm visit data. In addition, a BTM sample was collected either during the farm visit or by the marketing board in November of 2015 and was tested for 4 major mastitis pathogens using the PathoProof Mastitis Major 4 PCR Assay (Thermo Fisher Scientific Inc., Waltham, MA). Apparent herd-level prevalence was 46% for S. aureus, 6% for Prototheca spp., 0% for M. bovis, and 0% for Strep. agalactiae. Due to the low prevalence of M. bovis and Strep. agalactiae and a lack of significant factors associated with farms testing positive for Prototheca spp., an association analysis could only be carried out for Staph. aureus-positive farms. Factors associated with Staph. aureus-positive farms were not fore-stripping cows before milking (odds ratio = 1.87), milking with a pipeline system (odds ratio = 2.21), and stall bases made of a rubberized surface (mats and mattresses), whereas protective factors were using blanket dry cow therapy (odds ratio = 0.49) and applying a tag or visible mark on cows known to have chronic mastitis infections (odds ratio = 0.45). The Canadian national production-weighted geometric mean somatic cell count was determined to be 208,000 cells/mL. This is the first national dairy study conducted in Canada. Participating farms had higher milk yield; were more likely to have a loose housing system, parlor, or automated milking system; and had lower weighted mean BTM somatic cell count than the national level. Sampling larger farms with better milk quality means the apparent prevalence of the 4 mastitis pathogens likely underestimates the true levels. PMID- 29331470 TI - The effect of different precooling rates and cold storage on milk microbiological quality and composition. AB - The objective of this study was to measure the effect of different milk cooling rates, before entering the bulk tank, on the microbiological load and composition of the milk, as well as on energy usage. Three milk precooling treatments were applied before milk entered 3 identical bulk milk tanks: no plate cooler (NP), single-stage plate cooler (SP), and double-stage plate cooler (DP). These precooling treatments cooled the milk to 32.0 +/- 1.4 degrees C, 17.0 +/- 2.8 degrees C, and 6.0 +/- 1.1 degrees C, respectively. Milk was added to the bulk tank twice daily for 72 h, and the tank refrigeration temperature was set at 3 degrees C. The blend temperature within each bulk tank was reduced after each milking event as the volume of milk at 3 degrees C increased simultaneously. The bacterial counts of the milk volumes precooled at different rates did not differ significantly at 0 h of storage or at 24-h intervals thereafter. After 72 h of storage, the total bacterial count of the NP milk was 3.90 +/- 0.09 log10 cfu/mL, whereas that of the precooled milk volumes were 3.77 +/- 0.09 (SP) and 3.71 +/- 0.09 (DP) log10 cfu/mL. The constant storage temperature (3 degrees C) over 72 h helped to reduce bacterial growth rates in milk; consequently, milk composition was not affected and minimal, if any, proteolysis occurred. The DP treatment had the highest energy consumption (17.6 +/- 0.5 Wh/L), followed by the NP (16.8 +/- 2.7 Wh/L) and SP (10.6 +/- 1.3 Wh/L) treatments. This study suggests that bacterial count and composition of milk are minimally affected when milk is stored at 3 degrees C for 72 h, regardless of whether the milk is precooled; however, milk entering the tank should have good initial microbiological quality. Considering the numerical differences between bacterial counts, however, the use of the SP or DP precooling systems is recommended to maintain low levels of bacterial counts and reduce energy consumption. PMID- 29331469 TI - Peroxisome proliferator-activated receptor delta regulates lipid droplet formation and transport in goat mammary epithelial cells. AB - Even though recent evidence in goat mammary epithelial cells (GMEC) suggest a role of peroxisome proliferator-activated receptor delta (PPARD) in regulating lipid homeostasis, its role is not fully understood. Our hypothesis was that PPARD regulates lipid transport processes in GMEC and, thus, plays a crucial role in regulating fat formation. The PPARD was overexpressed using an adenovirus system (Ad-PPARD) with recombinant green fluorescent protein (Ad-GFP) as the control. Results revealed that overexpression of PPARD markedly upregulated the mRNA abundance of PPARD. Compared with the control (Ad-GFP+dimethyl sulfoxide), overexpression of PPARD alone had no effect on mRNA expression of CD36, SCD1, FABP4, ACSL1, and ADRP. The cultures overexpressing PPARD with the PPARD ligand GW0742 (GW) upregulated the expression of CD36, FABP3, FABP4, ACSL1, and ADRP. Overexpression of PPARD in GMEC plus GW increased the concentration of 16:1 and 18:1-trans and was associated with upregulation of SCD1. Compared with the control (Ad-GFP+dimethyl sulfoxide), the decrease of triacylglycerol concentration coupled with upregulation of genes related to lipid droplet secretion (e.g., ADRP and ACSL1) induced by PPARD overexpression suggests a role in lipid droplet (LD) secretion. Luciferase assay revealed that GW increased the ADRP promoter activity in a dose-dependent manner. Knockdown of PPARD impaired the increase of ADRP promoter activity induced by GW, whereas GW enhanced the activity of ADRP promoter in GMEC overexpressing PPARD. Data with the ADRP 5' flanking truncated luciferase reporter suggest a core region (-1,444 to -990 bp) response element for the induction of GW. This core region contains a known PPARG response element (PPRE) at -1,003 to -990 bp. When the PPRE was mutated, the overexpression of PPARD had no effect on ADRP promoter activity. Collectively, these results reveal a novel role for PPARD in lipid homeostasis via promoting fatty acid transport and LD formation through a mechanism of direct binding to the promoter of key genes. Hence, PPARD activity may contribute to fatty acid transport and LD formation during lactation. PMID- 29331471 TI - Symposium review: Novel strategies to genetically improve mastitis resistance in dairy cattle. AB - Mastitis is a disease of major economic importance to the dairy cattle sector because of the high incidence of clinical mastitis and prevalence of subclinical mastitis and, consequently, the costs associated with treatment, production losses, and reduced animal welfare. Disease-recording systems compiling data from a large number of farms are still not widely implemented around the world; thus, selection for mastitis resistance is often based on genetically correlated indicator traits such as somatic cell count (SCC), udder depth, and fore udder attachment. However, in the past years, several countries have initiated collection systems of clinical mastitis, based on producers recording data in most cases. The large data sets generated have enabled researchers to assess incidence of this disease and to investigate the genetic background of clinical mastitis itself, as well as its relationships with other traits of interest to the dairy industry. The genetic correlations between clinical mastitis and its previous proxies were estimated more accurately and confirmed the strong relationship of clinical mastitis with SCC and udder depth. New traits deriving from SCC were also studied, with the most relevant findings being associated with mean somatic cell score (SCS) in early lactation, standard deviation of SCS, and excessive test-day SCC pattern. Genetic correlations between clinical mastitis and other economically important traits indicated that selection for mastitis resistance would also improve resistance against other diseases and enhance both fertility and longevity. However, milk yield remains negatively correlated with clinical mastitis, emphasizing the importance of including health traits in the breeding objectives to achieve genetic progress for all important traits. These studies enabled the establishment of new genetic and genomic evaluation models, which are more efficient for selection to mastitis resistance. Further studies that are potential keys for future improvement of mastitis resistance are deep investigation of the bacteriology of mastitis, identification of novel indicator traits and tools for selection, and development of a larger female reference population to improve reliability of genomic evaluations. These cutting-edge studies will result in a better understanding of the genetic background of mastitis resistance and enable a more accurate phenotyping and genetic selection to improve mastitis resistance, and consequently, animal welfare and industry profitability. PMID- 29331472 TI - Influence of partially demineralized milk proteins on rheological properties and microstructure of acid gels. AB - Innovative clean label processes employed in the manufacture of acid gels are targeted to modify the structure of proteins that contribute to rheological properties. In the present study, CO2-treated milk protein concentrate powder with 80% protein in dry matter (TMPC80) was mixed with nonfat dry milk (NDM) in different ratios for the manufacture of acid gels. Dispersions of NDM and TMPC80 that provided 100, 90, 70, and 40% of protein from NDM were reconstituted to 4.0% (wt/wt) protein and 12.0% (wt/wt) total solids. Dispersions were adjusted to pH 6.5, followed by heat treatment at 90 degrees C for 10 min. Glucono-delta-lactone was added and samples were incubated at 30 degrees C, reaching pH 4.5 +/- 0.05 after 4 h of incubation. Glucono-delta-lactone levels were adjusted to compensate for the lower buffering capacity of samples with higher proportions of TMPC80, which is attributable to the depletion of buffering minerals from both the serum and micellar phase during preparation of TMPC80. Sodium dodecyl sulfate-PAGE analysis indicated a higher amount of caseins in the supernatant of unheated suspensions with increasing proportions of CO2-treated TMPC80, attributable to the partial disruption of casein micelles in TMPC80. Heat treatment reduced the level of whey proteins in the supernatant due to the heat-induced association of whey proteins with casein micelles, the extent of which was larger in samples containing more micellar casein (i.e., samples with a lower proportion of TMPC80). Particle size analysis showed only small differences between nonheated and heated dispersions. Gelation pH increased from ~5.1 to ~5.3, and the storage modulus of the gels at pH 4.5 increased from ~300 to ~420 Pa when the proportion of protein contributed by TMPC80 increased from 0 to 60%. Water-holding capacity also increased and gel porosity decreased with increasing proportion of protein contributed by TMPC80. The observed gel properties were in line with microstructural observations by confocal microscopy, wherein sample gels containing increasing levels of TMPC80 exhibited smaller, well-connected aggregates with uniform, homogeneous pore sizes. We concluded that TMPC80 can be used to partially replace NDM as a protein source to improve rheological and water-holding properties in acid gels. The resultant gels also exhibited decreased buffering, which can improve the productive capacity of yogurt manufacturing plants. Overall, the process can be leveraged to reduce the amount of hydrocolloids added to improve yogurt consistency and water-holding capacity, thus providing a path to meet consumer expectations of clean label products. PMID- 29331473 TI - A Randomized Trial of Itraconazole vs Prednisolone in Acute-Stage Allergic Bronchopulmonary Aspergillosis Complicating Asthma. AB - OBJECTIVE: Whether itraconazole monotherapy is effective in the acute stage of allergic bronchopulmonary aspergillosis (ABPA) remains unknown. The goal of this study was to compare the efficacy and safety of itraconazole and prednisolone monotherapy in ABPA. METHODS: Treatment-naive subjects with ABPA complicating asthma (January 2012 to December 2013) were randomized to receive either oral itraconazole or prednisolone for 4 months. The study was not blinded. The primary outcomes were proportion of subjects exhibiting a composite response after 6 weeks, percent decline in IgE after treatment, and numbers of subjects experiencing exacerbation. The secondary outcomes included the time to first exacerbation, change in lung function, and treatment-related adverse effects. RESULTS: A total of 131 subjects (prednisolone group, n = 63; itraconazole group, n = 68) were included in the study. The number of subjects exhibiting a composite response was significantly higher in the prednisolone group compared with the itraconazole group (100% vs 88%; P = .007). The percent decline in IgE after 6 weeks and 3 months and the number of subjects with exacerbations after 1 and 2 years of treatment were similar in the two groups. The time to first exacerbation (mean: 437 vs 442 days) and the improvement in lung function after 6 weeks was also similar in the two groups. The occurrence of side effects was significantly higher in the glucocorticoid arm (P < .001). CONCLUSIONS: Prednisolone was more effective in inducing response than itraconazole in acute-stage ABPA. However, itraconazole was also effective in a considerable number and, with fewer side effects compared with prednisolone, remains an attractive alternative in the initial treatment of ABPA. TRIAL REGISTRY: ClinicalTrials.gov; No.: NCT01321827; URL: www.clinicaltrials.gov). PMID- 29331474 TI - Clinical Databases for Chest Physicians. AB - A clinical database is a repository of patient medical and sociodemographic information focused on one or more specific health condition or exposure. Although clinical databases may be used for research purposes, their primary goal is to collect and track patient data for quality improvement, quality assurance, and/or actual clinical management. This article aims to provide an introduction and practical advice on the development of small-scale clinical databases for chest physicians and practice groups. Through example projects, we discuss the pros and cons of available technical platforms, including Microsoft Excel and Access, relational database management systems such as Oracle and PostgreSQL, and Research Electronic Data Capture. We consider approaches to deciding the base unit of data collection, creating consensus around variable definitions, and structuring routine clinical care to complement database aims. We conclude with an overview of regulatory and security considerations for clinical databases. PMID- 29331475 TI - End-of-Life Care for Patients With Advanced Kidney Disease in the US Veterans Affairs Health Care System, 2000-2011. AB - BACKGROUND: Little is known about patterns of end-of-life care for patients with advanced kidney disease not treated with maintenance dialysis. STUDY DESIGN: Case series. SETTING & PARTICIPANTS: A sample of 14,071 patients with sustained estimated glomerular filtration rates < 15mL/min/1.73m2 treated in the US Veterans Affairs health care system who died during 2000 to 2011. Before death, 12,756 of these patients had been treated with dialysis, 503 had been discussing and/or preparing for dialysis therapy, and for 812, there had been a decision not to pursue dialysis therapy. OUTCOMES: Hospitalization and receipt of an intensive procedure during the final month of life, in-hospital death, and palliative care consultation and hospice enrollment before death. RESULTS: Compared with decedents treated with dialysis, those for whom a decision not to pursue dialysis therapy had been made were less often hospitalized (57.3% vs 76.8%; OR, 0.40 [95% CI, 0.34-0.46]), less often the recipient of an intensive procedure (3.5% vs 24.6%; OR, 0.15 [95% CI, 0.10-0.22]), more often the recipient of a palliative care consultation (52.6% vs 21.6%; OR, 4.19 [95% CI, 3.58-4.90]), more often used hospice services (38.7% vs 18.2%; OR, 3.32 [95% CI, 2.83-3.89]), and died less frequently in a hospital (41.4% vs 57.3%; OR, 0.78 [95% CI, 0.74-0.82]). Hospitalization (55.5%; OR, 0.39 [95% CI, 0.32-0.46]), receipt of an intensive procedure (13.7%; OR, 0.60 [95% CI, 0.46-0.77]), and in-hospital death (39.0%; OR, 0.47 [95% CI, 0.39-0.56]) were also less common among decedents who had been discussing and/or preparing for dialysis therapy, but their use of palliative care and hospice services was similar. LIMITATIONS: Findings may not be generalizable to groups not well represented in the Veterans Affairs health care system. CONCLUSIONS: Among decedents, patients not treated with dialysis before death received less intensive patterns of end-of-life care than those treated with dialysis. Decedents for whom there had been a decision not to pursue dialysis therapy before death were more likely to receive palliative care and hospice. PMID- 29331476 TI - Factors Associated With Withdrawal From Maintenance Dialysis: A Case-Control Analysis. AB - BACKGROUND: Little is known about differences in the clinical course between patients receiving maintenance dialysis who do and do not withdraw from dialysis therapy. STUDY DESIGN: Case-control analysis. SETTING & PARTICIPANTS: US patients with Medicare coverage who received maintenance hemodialysis for 1 year or longer in 2008 through 2011. PREDICTORS: Comorbid conditions, hospitalizations, skilled nursing facility stays, and a morbidity score based on durable medical equipment claims. OUTCOME: Withdrawal from dialysis therapy. MEASUREMENTS: Rates of medical events, hospitalizations, skilled nursing facility stays, and a morbidity score. RESULTS: The analysis included 18,367 (7.7%) patients who withdrew and 220,443 (92.3%) who did not. Patients who withdrew were older (mean age, 75.3+/-11.5 [SD] vs 66.2+/-14.1 years) and more likely to be women and of white race, and had higher comorbid condition burdens. The odds of withdrawal among women were 7% (95% CI, 4%-11%) higher than among men. Compared to age 65 to 74 years, age 85 years or older was associated with higher adjusted odds of withdrawal (adjusted OR, 1.61; 95% CI, 1.54-1.68), and age 18 to 44 years with lower adjusted odds (adjusted OR, 0.36; 95% CI, 0.32-0.40). Blacks, Asians, and Hispanics were less likely to withdraw than whites (adjusted ORs of 0.36 [95% CI, 0.35-0.38], 0.47 [95% CI, 0.42-0.53], and 0.46 [95% CI, 0.44-0.49], respectively). A higher durable medical equipment claims-based morbidity score was associated with withdrawal, even after adjustment for traditional comorbid conditions and hospitalization; compared to a score of 0 (lowest presumed morbidity), adjusted ORs of withdrawal were 3.48 (95% CI, 3.29-3.67) for a score of 3 to 4 and 12.10 (95% CI, 11.37-12.87) for a score >=7. Rates of medical events and institutionalization tended to increase in the months preceding withdrawal, as did morbidity score. LIMITATIONS: Results may not be generalizable beyond US Medicare patients; people who withdrew less than 1 year after dialysis therapy initiation were not studied. CONCLUSIONS: Women, older patients, and those of white race were more likely to withdraw from dialysis therapy. The period before withdrawal was characterized by higher rates of medical events and higher levels of morbidity. PMID- 29331477 TI - Atypical Presentation of Pregnancy-Related Hemolytic Uremic Syndrome. AB - The cause of acute kidney injury during pregnancy and in the postpartum period can be particularly challenging to diagnose, especially when it is necessary to differentiate among preeclampsia; eclampsia; hemolysis, elevated liver enzymes and low platelets (HELLP) syndrome; and thrombotic microangiopathies (TMAs). All these disease entities can present with kidney failure, microangiopathic hemolytic anemia, and thrombocytopenia. We present a teaching case of atypical hemolytic uremic syndrome in the postpartum period in a young woman who was found to have mutations of uncertain clinical significance in the complement cascade, including in C3, CFH, and CFI. We use this as an opportunity to review the clinical presentation and pathophysiology of preeclampsia, eclampsia, and the TMAs. We focus on diagnostic challenges, especially because many patients with TMA do not present with thrombocytopenia, which can delay diagnosis. We additionally review the clinical settings in which administration of eculizumab, a C5 membrane attack complex inhibitor, is appropriate. PMID- 29331478 TI - Comprehensive analysis of lncRNAs and mRNAs with associated co-expression and ceRNA networks in C2C12 myoblasts and myotubes. AB - Long non-coding RNAs (lncRNAs) are emerging as important regulators in the modulation of muscle development and muscle-related diseases. To explore potential regulators of muscle differentiation, we determined the expression profiles of lncRNAs and mRNAs in C2C12 mouse myoblast cell line using microarray analysis. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed to explore their function. We also constructed co-expression, cis/trans-regulation, and competing endogenous RNA (ceRNA) networks with bioinformatics methods. We found that 3067 lncRNAs and 3235 mRNAs were differentially regulated (fold change >=2.0). Bioinformatics analysis indicated that the principal functions of the transcripts were related to muscle structure development and morphogenesis. Co-expression analysis showed 261 co expression relationships between 233 lncRNAs and 10 mRNAs, and nine lncRNAs interacted with myog and MEF2C collectively. Cis/trans-regulation prediction revealed that lncRNA Myh6 could be a valuable gene via cis-regulation, and lncRNAs such as 2310043L19Ris, V00821, and AK139352 may participate in particular pathways regulated by transcription factors, including myog, myod1, and foxo1. The myog-specific ceRNA network covered 10 lncRNAs, 378 miRNAs, and 1960 edges. The upregulated lncRNAs Filip1, Myl1, and 2310043L19Rik may promote myog expression by acting as ceRNAs. Our results offer a new perspective on the modulation of lncRNAs in muscle differentiation. PMID- 29331479 TI - Molecular characterization and expression of Piwil1 and Piwil2 during gonadal development and treatment with HCG and LHRH-A2 in Odontobutis potamophila. AB - Piwi proteins play an important regulatory role in germ cell division during gametogenesis and gonad development. In order to understand the function of Piwi genes in the reproductive process of the dark sleeper, we identified and characterized Piwil1 and Piwil2 from gonad tissue. The tissue distribution demonstrated that Piwils were highly expressed in the gonad of the dark sleeper. During gonad development, higher expression was observed in stage I of both the testes and ovaries than in subsequent stages at mRNA and protein levels. The results of immunohistochemistry demonstrated that Piwils were predominantly distributed in the spermatogonia, spermatocytes, and early oocytes. When treated with the HPG axis hormone (HCG and LHRH-A2), the expression of Piwils was significantly decreased in the testes and ovaries at mRNA and protein levels. All of these results indicated that Piwils play a vital role in gonad development and gametogenesis. Our findings provide valuable evidence to further clarify the underlying modulation mechanism of Piwils in teleosts. PMID- 29331480 TI - Human papillomavirus (HPV) 18 genetic variants and cervical cancer risk in Taizhou area, China. AB - Human papillomavirus (HPV) type 18 is predominantly associated with the development of cervical adenocarcinomas, whereas data on HPV18 genetic variability in China are limited. HPV18 genetic variants were formed phylogenetic tree, including lineages A, B, and C. We aimed to evaluate the diversity of HPV18 genetic variants by sequencing the entire E6, E7 and L1 genes. Between 2012 and 2015, a total of 138 (0.8%, 138/17669) women with single HPV18 infection were selected in this study. Finally, we observed 122 HPV18 isolates of the complete E6-E7-L1 sequences, and obtained 36 distinct variation patterns which the accession GenBank numbers as KY457805-KY457840. Except KY457805, KY457813, KY457819, KY457827, KY457829, the rest of HPV18 isolates (81.1%, 31/36) are novel variants. All of HPV18 variants belong to lineage A, while no lineage B, and C was found in our population of Taizhou region, Southeast China. Sublineage A1 was the most common variants (85.2%, 104/122), followed by sublineage A4, A3 and A5, while no sublineage A2 was obtained. Based on the tree topologies, there were three newly identified candidates' sublineages A6-A8. Out of 122 women, 67 (54.9%) had diagnosed by biopsy, including 49 women who diagnosed with cervicitis, 12 with cervical intraepithelial neoplasia (CIN)1, 4 with CIN2/3, and 2 with adenocarcinomas, respectively. Nevertheless, there was no association between HPV18 (sub) lineages and CIN1 or worse (CIN1+) lesions comparing with normal biopsies (P = .469). In conclusion, knowledge of the distribution of geographic/ethnical HPV18 genetic diversity provides critical information for developing diagnostic probes, epidemiologic correlate of cervical cancer risk and design of HPV vaccines for targeted populations. PMID- 29331481 TI - Genetic contribution of SUN5 mutations to acephalic spermatozoa in Fujian China. AB - Acephalic spermatozoa is an extremely rare disease associated with primary infertility. A recent study showed that genetic alterations in the SUN5 gene lead to this disease, and SUN5 mutations could explain the disease in about half of the patients. Therefore, in the present study, to re-visit the genetic contribution of SUN5 mutations to acephalic spermatozoa, we recruited 15 unrelated affected individuals and screened the SUN5 gene for mutations by whole exome sequencing (WES) and Sanger sequencing. Five of the 15 (33.33%) subjects were found to carry the same homozygous mutation in the SUN5 gene c.381delA (p.V128Sfs*7). Neither homozygous nor compound heterozygous mutations in SUN5 were found in the other 10 patients. The c.381delA mutation resulted in the truncation of the SUN5 protein and decreased the expression and altered the distribution of the outer dense fiber 1 (ODF1) protein. Thus, in our study SUN5 mutations accounted for only one-third of the patients in our cohort, which is lower than the percentage reported previously. Thus, our study suggests that the contribution of SUN5 mutations to acephalic spermatozoa might not be as high as described previously. These results will help in the genetic counseling of patients with acephalic spermatozoa. PMID- 29331483 TI - GATA4 is a transcriptional regulator of R-spondin1 in Japanese flounder (Paralichthys olivaceus). AB - GATA4 is a well-known transcription factor of the GATA family implicated in regulation of sex determination and gonadal development in mammals. In this study, we cloned the full-length cDNA of Paralichthys olivaceus gata4 (Po-gata4). Phylogenetic, gene structure, and synteny analysis showed that Po-GATA4 is homologous to GATA4 of teleost and tetrapod. Po-gata4 transcripts were detected in Sertoli cells, spermatogonia, oogonia and oocytes, with higher transcript levels overall in the testis than the ovary. The promoter region of P. olivaceus R-spondin1was found to contain a GATA4-binding motif. Results of CBA (cleaved amplified polymorphic sequence-based binding assay) indicated that GATA4 could indeed bind to the promoter sequence of R-spondin1. Moreover, human GATA4 recombinant protein could upregulate R-spondin1 in P. olivaceus ovary cells and FBCs (flounder brain cell line). In FBCs, overexpression of Po-gata4 resulted in elevated transcript levels of R-spondin1. Taken together, our results indicate that Po-GATA4 is involved in gonadal development by regulating R-spondin1 expression. PMID- 29331484 TI - Novel biomolecular information in rotenone-induced cellular model of Parkinson's disease. AB - In order to uncover the remarkable pathogenic genes or molecular pathological process in Parkinson's disease (PD), we employed a microarray analysis upon the cellular PD model induced by rotenone. Compared to the control group, 2174 genes were screened out to be expressed differently in the rotenone-induced group by certain criterion. GO analysis and the pathways analysis showed the significant enrichment of genes that were associated with the biological process of cell cycle, apoptotic process, organelle fusion, mitochondrial lesion, endoplasmic reticulum stress and so on. Among these significant DE genes, some were sorted out to be involved in cell cycle and protein processing in endoplasmic reticulum. As the PPI network analysis showed, the interaction relationship of the DEGs involved in the process of protein generation in endoplasmic reticulum(ER) was clearly showed up. As a prediction, we emphasized the genes EDEM1, ATF4, TRAF2 might play central roles in the protein misfolding process during the progression of Parkinson's disease and these new-found genes might be the future research focus and therapeutic targets in PD. PMID- 29331485 TI - Impact of 9p21.3 region and atherosclerosis-related genes' variants on long-term recurrent hard cardiac events after a myocardial infarction. AB - Atherosclerotic coronary artery disease (CAD) and myocardial infarction (MI) as its most severe clinical complication remain the leading causes of mortality in the majority of countries. Despite the progress in the treatment of MI, quite often the patients, after the first-time MI, develop subsequently a variety of adverse cardiovascular events. In this retrospective study we evaluated the contribution of allelic variations in 9p21.3 locus and in 21 atherogenesis related genes to the development of hard cardiac events in a cohort of patients of Russian ethnicity after the first acute MI during long-term follow-up (7-10 years). Death from cardiac causes and recurrent nonfatal MI were considered as key clinical outcomes. We have shown the association of rs1333049 and rs10757278 in 9p21.3 and MTHFR rs1801133 with recurrent unfavorable events, the latter was observed in time-dependent manner. Multilocus analysis additionally suggested the influence of carriage of the CRP and ENOS genes variants at the development of subsequent adverse events after MI. The composite model built for prediction of the individual genetic risk of postinfarction hard cardiac events included 9p21.3 rs1333049*GG and MTHFR*TT and was characterized by area under the curve (AUC) = 0.65. Our data show that 9p21.3 locus and MTHFR gene polymorphisms could influence long-term prognosis of recurrent hard cardiac events in patients who underwent the first MI. It is possible that addition of genotyping at such loci to existing clinical scores could improve their predictability. PMID- 29331482 TI - Genetic basis of hearing loss in Spanish, Hispanic and Latino populations. AB - Hearing loss (HL) is the most common neurosensory disorder affecting humans. The screening, prevention and treatment of HL require a better understanding of the underlying molecular mechanisms. Genetic predisposition is one of the most common factors that leads to HL. Most HL studies include few Spanish, Hispanic and Latino participants, leaving a critical gap in our understanding about the prevalence, impact, unmet health care needs, and genetic factors associated with hearing impairment among Spanish, Hispanic and Latino populations. The few studies which have been performed show that the gene variants commonly associated with HL in non-Spanish and non-Hispanic populations are infrequently responsible for hearing impairment in Spanish as well as Hispanic and Latino populations (hereafter referred to as Hispanic). To design effective screening tools to detect HL in Spanish and Hispanic populations, studies must be conducted to determine the gene variants that are most commonly associated with hearing impairment in this racial/ethnic group. In this review article, we summarize gene variants and loci associated with HL in Spanish and Hispanic populations. Identifying new genetic variants associated with HL in Spanish and Hispanic populations will pave the way to develop effective screening tools and therapeutic strategies for HL. PMID- 29331486 TI - Prenatal exposure to acetaminophen and children's language development at 30 months. AB - OBJECTIVE: To examine prenatal APAP exposure in relation to language development in offspring at 30 months of age. METHOD: A population-based pregnancy cohort study including 754 women who enrolled in the Swedish Environmental Longitudinal, Mother and child, Asthma and allergy (SELMA) study in pregnancy week 8-13. Two exposure measures were used: (1) maternally reported number of APAP tablets taken between conception and enrollment; (2) APAP urinary concentration at enrollment. Language development at 30 months was assessed by nurse's evaluation and parental questionnaire, including the number of words the child used (<25, 25-50 and >50). Main study outcome; parental report of use of fewer than 50 words, termed language delay (LD). RESULTS: 59.2% of women enrolled in weeks 8-13 reported taking APAP between conception and enrollment. APAP was measurable in all urine samples and urinary APAP was correlated with the number of APAP taken during pregnancy (P<0.01). Language delay was more prevalent in boys (12.6%) than girls (4.1%) (8.5% in total). Both the number of APAP tablets and urinary APAP concentration were associated with greater LD in girls but not in boys. The adjusted odds ratio (OR) for LD among girls whose mothers reported >6 vs. 0 APAP tablets was 5.92 (95% confidence interval (CI) 1.10-31.94). The OR for LD in girls whose mothers' urinary APAP was in the highest compared to the lowest quartile was 10.34 (95% CI 1.37-77.86). While it cannot be ruled out, our available data do not support confounding by indication. CONCLUSIONS: Given the prevalence of prenatal APAP use and the importance of language development, these findings, if replicated, would suggest that pregnant women should limit their use of this analgesic during pregnancy. PMID- 29331487 TI - CureCuma-cationic curcuminoids with improved properties and enhanced antimicrobial photodynamic activity. AB - The naturally occurring photosensitizer curcumin has excellent biocompatibility, but its antimicrobial photodynamic efficacy is limited by (i) weak adherence to Gram(-) bacteria cell walls, (ii) low (photo-)stability and (iii) limited solubility in water. In this study novel curcuminoids bearing cationic substituents were prepared by different synthetic routes. The derivatives exhibit excellent water solubility, improved photostability and low aggregation. All novel curcuminoids showed antibacterial photodynamic effects (>3 log10 reduction of CFU) against Escherichia coli and Staphylococcus aureus upon blue light illumination. In contrast to natural curcumin, effective photokilling of E. coli was possible without the addition of permeabilizing agents. Ten micromolar of the most active compound (8) achieved a 7 log10 decrease of E. coli after light activation with a fluence of 33.8 J/cm2, whereas S. aureus was inactivated by more than 4 log10 at a fluence of 5.3 J/cm2. Overall the reduction in bacterial count was at least 100-fold more effective with these new curcuminoids in comparison to natural curcumin. PMID- 29331488 TI - A potential utilization of end-of-life tyres as recycled carbon black in EPDM rubber. AB - End-of-life (EOL) tyres and their decomposition present severe environmental concern due to their resistance to moisture, oxygen, natural degradation, etc. Pyrolysis is considered to be the most effective and sustainable process for recycling, due to its eco-friendly process. The current work studied the effect of recycled carbon black (rCB), obtained from the pyrolysis of EOL tyres, on the properties of ethylene propylene diene rubber (EPDM). The rCB was characterized by scanning electron microscopy (SEM), thermogravimetric analysis (TGA) and chemical methods. rCB was incorporated solely, into a conventional EPDM formulation and also in combination with N550 carbon black. The physico mechanical properties of the EPDM vulcanizates, before and after aging, were succinctly studied by SEM, TGA, Differential Scanning Calorimetry (DSC), tensile tests and cross-link density. The average particle size of rCB was observed to be 8 um and the ash content was observed to be higher when compared to the conventional N550 carbon black, which was evident, by the TGA and SEM-EDX analyses. The reinforcing effect and the cross-link density of the rCB-filled vulcanizates were found to be marginally inferior in comparison to the conventional carbon black (N550). The morphology of the tensile- and tear fractured surfaces were studied by SEM and it was observed that the breaking mechanism follows the rubber chain detachment from the surface mode. PMID- 29331489 TI - Modulation of lower extremity joint stiffness, work and power at different walking and running speeds. AB - Locomotion task and speed changes affect dynamic joint function. Walking and running require different coordination patterns of lower extremity joint mechanics. These coordination differences can result in measurable changes in kinematic and kinetic patterns. When locomotion speed changes, the functional role and movement strategy of each joint is altered. A deeper understanding of joint level mechanics and functional interactions will benefit rehabilitation programs and assistive device development. In this study, joint stiffness, joint mechanical work and power were assessed, as they relate to dynamic function of joints during locomotion. Ten young healthy subjects (5 males, 5 females) participated in a treadmill walking (0.8-2.0 m/s) and running (1.8-3.8 m/s) study. When running speed increased, the stiffness of all three joints tended to increase. The ankle joint played a dominant role during the stance phase of running, generating more positive work than the knee (p = .003) and hip (p = .0001). The knee and hip joint were more dominant in walking and running swing phase energy absorption and generation, respectively. When locomotion speeds increased, stance phase ankle positive work, swing phase knee negative work, and hip joint positive work tended to increase. These findings suggest that change of locomotion speed or task results in definitive changes to lower extremity joint level mechanics patterns. PMID- 29331490 TI - Supervised Machine Learning for Population Genetics: A New Paradigm. AB - As population genomic datasets grow in size, researchers are faced with the daunting task of making sense of a flood of information. To keep pace with this explosion of data, computational methodologies for population genetic inference are rapidly being developed to best utilize genomic sequence data. In this review we discuss a new paradigm that has emerged in computational population genomics: that of supervised machine learning (ML). We review the fundamentals of ML, discuss recent applications of supervised ML to population genetics that outperform competing methods, and describe promising future directions in this area. Ultimately, we argue that supervised ML is an important and underutilized tool that has considerable potential for the world of evolutionary genomics. PMID- 29331491 TI - Investigating the relationship between cardiac interoception and autonomic cardiac control using a predictive coding framework. AB - Predictive coding models, such as the 'free-energy principle' (FEP), have recently been discussed in relation to how interoceptive (afferent visceral feedback) signals update predictions about the state of the body, thereby driving autonomic mediation of homeostasis. This study appealed to 'interoceptive inference', under the FEP, to seek new insights into autonomic (dys)function and brain-body integration by examining the relationship between cardiac interoception and autonomic cardiac control in healthy controls and patients with forms of orthostatic intolerance (OI); to (i) seek empirical support for interoceptive inference and (ii) delineate if this relationship was sensitive to increased interoceptive prediction error in OI patients during head-up tilt (HUT)/symptom provocation. Measures of interoception and heart rate variability (HRV) were recorded whilst supine and during HUT in healthy controls (N = 20), postural tachycardia syndrome (PoTS, N = 20) and vasovagal syncope (VVS, N = 20) patients. Compared to controls, interoceptive accuracy was reduced in both OI groups. Healthy controls' interoceptive sensibility positively correlated with HRV whilst supine. Conversely, both OI groups' interoceptive awareness negatively correlated with HRV during HUT. Our pilot study offers initial support for interoceptive inference and suggests OI cohorts share a central pathophysiology underlying interoceptive deficits expressed across distinct cardiovascular autonomic pathophysiology. From a predictive coding perspective, OI patients' data indicates a failure to attenuate/modulate ascending interoceptive prediction errors, reinforced by the concomitant failure to engage autonomic reflexes during HUT. Our findings offer a potential framework for conceptualising how the human nervous system maintains homeostasis and how both central and autonomic processes are ultimately implicated in dysautonomia. PMID- 29331492 TI - Prognostic Value of the Expression of DNA Repair-Related Biomarkers Mediated by Alcohol in Gastric Cancer Patients. AB - Alcohol consumption likely induces gastric carcinogenesis through deregulation of RNA polymerase (Pol) III genes and oxidative damage. Transcription factor IIB related factor 1 (BRF1) overexpression alleviates RNA Pol III transcription inhibition through breast cancer susceptibility gene 1 (BRCA1). Myeloperoxidase (MPO) involvement in cancer is induced by alcohol-mediated oxidative damage. BRCA1/2 and MPO play key roles in DNA repair. BRCA1 and BRCA2 exert different roles in homologous recombination repair. By using human gastric cancer (GC) biopsies, we investigated the prognostic value of these proteins upon alcohol induction. In total, high expression of BRF1 (P = 0.010) and positive cell infiltration of MPO (P = 0.004) in tumor tissues as well as positive expression of BRCA1 (P < 0.001) in para-tumor tissues were more frequent in GC patients with hazardous or harmful alcohol consumption habits. BRF1 (P = 0.021), BRCA2 (P < 0.001), and MPO (P = 0.039) were independent prognostic factors for disease-free survival. BRCA1 (P = 0.005) and BRCA2 (P < 0.001) also were identified as independent prognostic factors for overall survival. Furthermore, BRCA2 was an independent unfavorable prognostic factor for disease-free survival and overall survival (P < 0.001) in GC patients who underwent platinum-based adjuvant chemotherapy. BRF1, BRCA1/2, and MPO are DNA repair-related biomarkers, induced by alcohol with prognostic value in GC patients. PMID- 29331493 TI - Hip Dislocations in the Emergency Department: A Review of Reduction Techniques. AB - BACKGROUND: Hip dislocations are a common presentation in the Emergency Department (ED) and require urgent reduction to reduce the risk of avascular necrosis. Over 90% of all dislocations can successfully be reduced in the ED and there is evidence that cases awaiting operative reduction result in significant delays. DISCUSSION: While there is limited data comparing specific techniques, the individual success rates of most maneuvers range from 60-90%. Additionally, each technique has distinct advantages and limitations associated with its use. CONCLUSIONS: It is important for Emergency Physicians to be familiar with several different reduction techniques in case the initial reduction attempt is unsuccessful or patient characteristics limit the use of certain maneuvers. This article reviews a number of reduction techniques for hip dislocations, variations on these techniques, and advantages and disadvantages for each approach. PMID- 29331494 TI - A Novel Difficult-Airway Prediction Tool for Emergency Airway Management: Validation of the HEAVEN Criteria in a Large Air Medical Cohort. AB - BACKGROUND: Difficult-airway prediction tools help identify optimal airway techniques, but were derived in elective surgery patients and may not be applicable to emergency rapid sequence intubation (RSI). The HEAVEN criteria (Hypoxemia, Extremes of size, Anatomic abnormalities, Vomit/blood/fluid, Exsanguination, Neck mobility issues) may be more relevant to emergency RSI patients. OBJECTIVE: To validate the HEAVEN criteria for difficult-airway prediction in emergency RSI using a large air medical cohort. METHODS: This was a retrospective analysis using a large air medical airway registry using data from 160 bases over a 1-year period. Standard test characteristics (sensitivity, specificity, positive predictive value, negative predictive value [NPV]) for the HEAVEN criteria were calculated for overall intubation success, first-attempt success, and first-attempt success without desaturation. In addition, multivariable logistic regression was used to quantify the independent association between each of the HEAVEN criteria, as well as the total number of criteria present and intubation success after adjusting for age, gender, and clinical category (burn, medical, trauma, nontraumatic shock). RESULTS: A total of 2419 patients undergoing air medical RSI were included. Excellent NPV was observed (97% for each of the HEAVEN criteria except "Exsanguination," which had an NPV of 87% but specificity of 99%). First-attempt success was lower for each of the HEAVEN criteria, with an inverse relationship observed between total HEAVEN criteria and intubation success (first-attempt success with no criteria = 94% and with 5 + criteria = 43%). Multivariable logistic regression revealed independent associations between each of the HEAVEN criteria, as well as total number of criteria and intubation success. CONCLUSIONS: The HEAVEN criteria seem to be a useful tool to predict difficult airways in emergency RSI. PMID- 29331495 TI - Role of BCL2L10 in regulating buffalo (Bubalus bubalis) oocyte maturation. AB - It has been reported that BCL2L10 is abundantly and specifically expressed in adult human and mouse oocytes and played a very important role in oocytes maturation and early embryonic development. This study is to investigate the expression pattern of BCL2L10 in buffalo ovaries and its effect on the in vitro maturation of buffalo oocytes, so as to dissect mechanism of oocytes maturation and provide theoretical guidance for improvement of the in vitro maturation of buffalo oocytes. The results showed that BCL2L10 gene was enriched in ovary and the expression of BCL2L10 was oocyte specific and up-regulated during oocyte maturation. BCL2L10 protein and mRNA were detectable in buffalo early embryos, upregulated at 2-cell to 8-cell stages and down-regulated in the later stages. Knockdown of BCL2L10 by RNA interference resulted in a significant decrease in the maturation rate (33.5%) and cleavage rate (37.52%) of buffalo oocytes coupled with up-regulation of apoptosis-related gene Caspase-9. We concluded that BCL2L10 is a candidate associated with buffalo oocyte maturation. PMID- 29331496 TI - Maternal betaine supplementation attenuates glucocorticoid-induced hepatic lipid accumulation through epigenetic modification in adult offspring rats. AB - There are lots of reports about alleviation of NAFLD by dietary supplements of betaine. However, it remains unclear whether maternal betaine supplementation can also ameliorate NAFLD in offspring. Hence, twenty pregnant rats were fed with a basal diet with or without betaine (1%), and then the female offspring rats were raised at 3 months of age followed by 3 weeks of physiological saline or dexamethasone in a dose of 0.1 mg/kg body mass every day via intraperitoneal injection. In this study, maternal betaine supplementation significantly (P<.05) reduced the increase of hepatic triglycerides concentration in dexamethasone induced rats, which is associated with the expression of hepatic lipogenic genes (ACC1, FASN and SCD1). Moreover, the hypomethylation of lipogenic genes in dexamethasone-induced rats were reserved by prenatal betaine exposure. Furthermore, the increase of hepatic GR or SP1 content in dexamethasone-injected rats were significantly decreased (P<.05), which were in line with the binding of GR or SP1 to lipogenic genes, in betaine -exposed rats. Together, these results suggest that maternal betaine supplementation attenuates dexamethason-induced fatty liver in the female adult offspring rats, which may be attributed to DNA methylation and GR or SP1-mediated the regulation of lipogenic genes. PMID- 29331497 TI - Dietary antioxidant micronutrients alter mucosal inflammatory risk in a murine model of genetic and microbial susceptibility. AB - Inflammatory bowel diseases (IBD) are caused by the convergence of microbial, environmental, and genetic factors. Diet significantly alters these interactions by affecting both the host and microbiome. Using a mucosal inflammatory model that resembles the human condition of ileal pouchitis, we investigated the effects of Control (CONT) or Antioxidant (AOX) diet, containing pharmacologically relevant levels of 4 micronutrients, on disease risk in wild-type and IL-10-/- animals following surgical self-filling (SF) ileal blind loop placement. Although no differences were found in body weight change or survival, IL-10-/- CONT animals had significantly larger lymphoid organs compared with IL-10-/- AOX or with WT. SF loops from IL-10-/- CONT loop mucosa demonstrated histological inflammation, characterized by goblet cell depletion, increased mucosal myeloperoxidase (MPO), and elevated IFNgamma, TNFalpha, and IL-17alpha gene expression, which AOX attenuated. AOX elevated luminal IgA in IL-10-/- animals, but not significantly in WT. In IL-10-/- animals, AOX significantly decreased the percentage of CD4 + T-bet and CD4 + RORgamma T-cells compared with CONT, with no changes in CD4 + Foxp3+ Treg cells. 16S rRNA gene sequencing demonstrated AOX increased microbial alpha diversity compared with CONT in both genotypes. Notably, colonizing germ-free IL-10-/- hosts with CONT bacterial communities, but not AOX, recapitulated the inflammatory phenotype. Collectively, these findings highlight that common dietary antioxidant micronutrients reshape the gut microbial community to mitigate intestinal inflammatory profiles in genetically susceptible hosts. Insights into the dietary-immune-microbial nexus may improve understanding for recurrent inflammatory episodes in susceptible patient populations and opportunities for practical therapeutics to restore immune and microbial homeostasis. PMID- 29331498 TI - Identification of neural transcription factors required for the differentiation of three neuronal subtypes in the sea urchin embryo. AB - Correct patterning of the nervous system is essential for an organism's survival and complex behavior. Embryologists have used the sea urchin as a model for decades, but our understanding of sea urchin nervous system patterning is incomplete. Previous histochemical studies identified multiple neurotransmitters in the pluteus larvae of several sea urchin species. However, little is known about how, where and when neural subtypes are differentially specified during development. Here, we examine the molecular mechanisms of neuronal subtype specification in 3 distinct neural subtypes in the Lytechinus variegatus larva. We show that these subtypes are specified through Delta/Notch signaling and identify a different transcription factor required for the development of each neural subtype. Our results show achaete-scute and neurogenin are proneural for the serotonergic neurons of the apical organ and cholinergic neurons of the ciliary band, respectively. We also show that orthopedia is not proneural but is necessary for the differentiation of the cholinergic/catecholaminergic postoral neurons. Interestingly, these transcription factors are used similarly during vertebrate neurogenesis. We believe this study is a starting point for building a neural gene regulatory network in the sea urchin and for finding conserved deuterostome neurogenic mechanisms. PMID- 29331499 TI - Hspb7 is a cardioprotective chaperone facilitating sarcomeric proteostasis. AB - Small heat shock proteins are chaperones with variable mechanisms of action. The function of cardiac family member Hspb7 is unknown, despite being identified through GWAS as a potential cardiomyopathy risk gene. We discovered that zebrafish hspb7 mutants display mild focal cardiac fibrosis and sarcomeric abnormalities. Significant mortality was observed in adult hspb7 mutants subjected to exercise stress, demonstrating a genetic and environmental interaction that determines disease outcome. We identified large sarcomeric proteins FilaminC and Titin as Hspb7 binding partners in cardiac cells. Damaged FilaminC undergoes autophagic processing to maintain sarcomeric homeostasis. Loss of Hspb7 in zebrafish or human cardiomyocytes stimulated autophagic pathways and expression of the sister gene encoding Hspb5. Inhibiting autophagy caused FilaminC aggregation in HSPB7 mutant human cardiomyocytes and developmental cardiomyopathy in hspb7 mutant zebrafish embryos. These studies highlight the importance of damage-processing networks in cardiomyocytes, and a previously unrecognized role in this context for Hspb7. PMID- 29331500 TI - Peripheral modulation of the endocannabinoid system in metabolic disease. AB - Dysfunction of the endocannabinoid system (ECS) has been identified in metabolic disease. Cannabinoid receptor 1 (CB1) is abundantly expressed in the brain but also expressed in the periphery. Cannabinoid receptor 2 (CB2) is more abundant in the periphery, including the immune cells. In obesity, global antagonism of overexpressed CB1 reduces bodyweight but leads to centrally mediated adverse psychological outcomes. Emerging research in isolated cultured cells or tissues has demonstrated that targeting the endocannabinoid system in the periphery alleviates the pathologies associated with metabolic disease. Further, peripheral specific cannabinoid ligands can reverse aspects of the metabolic phenotype. This Keynote review will focus on current research on the functionality of peripheral modulation of the ECS for the treatment of obesity. PMID- 29331502 TI - Contrast-induced nephropathy - an entity to bear in mind and to prevent: A nephrological perspective. PMID- 29331501 TI - Incorporating upper motor neuron health in ALS drug discovery. AB - Amyotrophic lateral sclerosis (ALS) is a complex disease, that affects the motor neuron circuitry. After consecutive failures in clinical trials for the past 20 years, edaravone was recently approved as the second drug for ALS. This generated excitement in the field revealed the need to improve preclinical assays for continued success. Here, we focus on the importance and relevance of upper motor neuron (UMN) pathology in ALS, and discuss how incorporation of UMN survival in preclinical assays will improve inclusion criteria for clinical trials and expedite the drug discovery effort in ALS and related motor neuron diseases. PMID- 29331503 TI - Clinical scores in acute coronary syndrome: When and why should we use them? PMID- 29331504 TI - A Systematic Review of Health Care Provider-Perceived Barriers and Facilitators to Routine HIV Testing in Primary Care Settings in the Southeastern United States. AB - Despite efforts to improve HIV screening and testing, many primary care settings do not follow established guidelines. The purpose of our systematic review was to describe health care providers' perceived barriers and facilitators to testing for HIV at poorly used/novel testing sites in the southeastern United States. PubMed, CINAHL, and Embase databases were searched for peer-reviewed studies of providers' perceived barriers and facilitators to routine HIV testing from January 2016 to April 2017 according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Of 708 papers retrieved, 12 met inclusion criteria and were analyzed. Barriers to HIV testing in primary care existed at the societal, organizational, and individual levels. Providers need continuing sexual health education, including HIV and federal guideline updates, and students should have clinical experiences to supplement knowledge about sexual health. Clinic protocols should be updated to meet current policy guidelines. PMID- 29331505 TI - Successful Treatment of Anti-angiotensin II Type 1 Receptor Antibody-Associated Rejection in Kidney Transplantation: A Case Report. AB - Angiotensin II type 1 receptor (AT1R) antibody, a non-HLA antibody, has been found to have a detrimental effect on kidney allografts. Similarly to HLA antibodies, recipients who have AT1R antibodies are at risk for allograft rejection and poor long-term graft outcome. Besides mediating allograft rejections via direct effects on endothelial and vascular smooth muscle without complement activation, AT1R antibodies may lead to accelerated hypertension via the renin-angiotensin pathway. There has been no definite level of AT1R antibody that predicts allograft rejection. Because of a low incidence of AT1R antibody associated rejection, there are few reports on specific treatment. The results of conventional treatment, which aims to remove these pathologic antibodies similarly to the treatment of HLA antibody-associated rejection, have been unsatisfactory. Some studies recommend using angiotensin receptor blocker to attenuate the adverse effects of AT1R antibody on kidney allograft. Herein we present a kidney transplant recipient with AT1R antibody-associated refractory allograft rejection who was successfully treated with the use of steroid, plasmapheresis, intravenous immunoglobulin, and rituximab. PMID- 29331506 TI - Hepatocyte estrogen receptor alpha mediates estrogen action to promote reverse cholesterol transport during Western-type diet feeding. AB - OBJECTIVE: Hepatocyte deletion of estrogen receptor alpha (LKO-ERalpha) worsens fatty liver, dyslipidemia, and insulin resistance in high-fat diet fed female mice. However, whether or not hepatocyte ERalpha regulates reverse cholesterol transport (RCT) in mice has not yet been reported. METHODS AND RESULTS: Using LKO ERalpha mice and wild-type (WT) littermates fed a Western-type diet, we found that deletion of hepatocyte ERalpha impaired in vivo RCT measured by the removal of 3H-cholesterol from macrophages to the liver, and subsequently to feces, in female mice but not in male mice. Deletion of hepatocyte ERalpha decreased the capacity of isolated HDL to efflux cholesterol from macrophages and reduced the ability of isolated hepatocytes to accept cholesterol from HDL ex vivo in both sexes. However, only in female mice, LKO-ERalpha increased serum cholesterol levels and increased HDL particle sizes. Deletion of hepatocyte ERalpha increased adiposity and worsened insulin resistance to a greater degree in female than male mice. All of the changes lead to a 5.6-fold increase in the size of early atherosclerotic lesions in female LKO-ERalpha mice compared to WT controls. CONCLUSIONS: Estrogen signaling through hepatocyte ERalpha plays an important role in RCT and is protective against lipid retention in the artery wall during early stages of atherosclerosis in female mice fed a Western-type diet. PMID- 29331508 TI - Compartmentalized crosstalk of CFTR and TMEM16A (ANO1) through EPAC1 and ADCY1. AB - Airway epithelial cells express both Ca2+ activated TMEM16A/ANO1 and cAMP activated CFTR anion channels. Previous work suggested a significant crosstalk of intracellular Ca2+ and cAMP signaling pathways, leading to activation of both chloride channels. We demonstrate that in airway epithelial cells, stimulation of purinergic or muscarinic G-protein coupled receptors (GPCRs) activates TMEM16A and CFTR. Additional expression of Gq/11 and phospholipase C coupled GPCRs strongly enhanced the crosstalk between Ca2+- and cAMP-dependent signaling. Knockdown of endogenous GRCRs attenuated crosstalk and functional coupling between TMEM16A and CFTR. The number of receptors did not affect expression or membrane localization of TMEM16A or CFTR, but controlled assembly of the local signalosome. GPCRs translocate Ca2+-sensitive adenylate cyclase type 1 (ADCY1) and exchange protein directly activated by cAMP (EPAC1) to particular plasma membrane domains containing GPCRs, CFTR and TMEM16A, thereby producing compartmentalized Ca2+ and cAMP signals and significant crosstalk. While biosynthesis and membrane trafficking of CFTR requires a functional Golgi apparatus, maturation and membrane trafficking of TMEM16A may occur independent of the Golgi. Because Ca2+ activated TMEM16A currents are only transient, continuous Cl- secretion by airway epithelial cells requires CFTR. The present data also explain why receptor-dependent activation of TMEM16A is more efficient than direct stimulation by Ca2+. PMID- 29331509 TI - Selenolanthionine is the major water-soluble selenium compound in the selenium tolerant plant Cardamine violifolia. AB - BACKGROUND: Selenium hyperaccumulation in plants often involves the synthesis of non-proteinaceous methylated selenoamino acids serving for the elimination of excess selenium from plant metabolism to protect plant homeostasis. METHODS: Our study aimed at the identification of the main selenium species of the selenium hyperaccumulator plant Cardamine violifolia (Brassicaceae) that grows in the wild in the seleniferous region of Enshi, China. A sample of this plant (3.7 g Se kg-1 d.w.) was prepared with several extraction methods and the extracted selenium species were identified and quantified with liquid chromatography mass spectrometry set-ups. RESULTS: The Cardamine violifolia sample did not contain in considerable amount any of the organic selenium species that are often formed in hyperaccumulator plants; the inorganic selenium content (mostly as elemental selenium) accounted only for <20% of total Se. The most abundant selenium compound, accounting for about 40% of total Se was proved to be selenolanthionine, a selenium species that has never been unambiguously identified before from any selenium containing sample. The identification process was completed with chemical synthesis too. The molar ratio of lanthionine:selenolanthionine in the water extract was ca. 1:8. CONCLUSIONS: Finding selenolanthionine as the main organic selenium species in a plant possibly unearths a new way of selenium tolerance. This article is part of a Special Issue entitled Selenium research in biochemistry and biophysics - 200 year anniversary issue, edited by Dr. Elias Arner and Dr. Regina Brigelius-Flohe. PMID- 29331510 TI - Effects of sub-minimum inhibitory concentrations of lemon essential oil on the acid tolerance and biofilm formation of Streptococcus mutans. AB - OBJECTIVES: Lemon essential oil (LEO) is a kind of secondary metabolite from lemon peels and has been found to inhibit cariogenic bacteria for decades. However, its effects on main cariogenic virulence factors are rarely reported. The present study aimed to investigate the effects of sub-minimum inhibitory concentrations (sub-MICs) of LEO on the acid tolerance and biofilm formation of Streptococcus mutans (S. mutans) and preliminarily reveal the possible underlying mechanisms. DESIGNS: Effects of LEO on the acid tolerance and biofilm formation of S. mutans were investigated by the broth dilution method and crystal violet staining method respectively. The expression of luxS, srtA and spaP gene was also determined to explore the underlying mechanism. In addition, Tea polyphenols (TP), a major natural inhibitor of cariogenic virulence factors, and limonene (LIM), the major component of LEO, were selected as comparisons to evaluate the effects of LEO. RESULTS: Sub-MICs of LEO, LIM and TP exhibited a dose-dependent inhibition of growth of S. mutans at pH ranging from 4.0 to 7.0. The formation of S. mutans biofilm was remarkably inhibited and the inhibitory rates of LEO, LIM and TP were 97.87%, 94.88% and 96.01% respectively at 1/2 MIC. Similarly, a down regulation was observed in the expression of luxS, srtA and spaP gene at sub-MIC levels. CONCLUSIONS: Effects of LEO were similar or slightly stronger than LIM and TP, suggesting that LEO might represent a novel, natural anticarious agent that inhibited the specific genes associated with bacterial acid tolerance and biofilm formation without necessarily affecting the growth of oral bacteria. PMID- 29331507 TI - Adropin: An endocrine link between the biological clock and cholesterol homeostasis. AB - OBJECTIVE: Identify determinants of plasma adropin concentrations, a secreted peptide translated from the Energy Homeostasis Associated (ENHO) gene linked to metabolic control and vascular function. METHODS: Associations between plasma adropin concentrations, demographics (sex, age, BMI) and circulating biomarkers of lipid and glucose metabolism were assessed in plasma obtained after an overnight fast in humans. The regulation of adropin expression was then assessed in silico, in cultured human cells, and in animal models. RESULTS: In humans, plasma adropin concentrations are inversely related to atherogenic LDL cholesterol (LDL-C) levels in men (n = 349), but not in women (n = 401). Analysis of hepatic Enho expression in male mice suggests control by the biological clock. Expression is rhythmic, peaking during maximal food consumption in the dark correlating with transcriptional activation by RORalpha/gamma. The nadir in the light phase coincides with the rest phase and repression by Rev-erb. Plasma adropin concentrations in nonhuman primates (rhesus monkeys) also exhibit peaks coinciding with feeding times (07:00 h, 15:00 h). The ROR inverse agonists SR1001 and the 7-oxygenated sterols 7-beta-hydroxysterol and 7-ketocholesterol, or the Rev-erb agonist SR9009, suppress ENHO expression in cultured human HepG2 cells. Consumption of high-cholesterol diets suppress expression of the adropin transcript in mouse liver. However, adropin over expression does not prevent hypercholesterolemia resulting from a high cholesterol diet and/or LDL receptor mutations. CONCLUSIONS: In humans, associations between plasma adropin concentrations and LDL-C suggest a link with hepatic lipid metabolism. Mouse studies suggest that the relationship between adropin and cholesterol metabolism is unidirectional, and predominantly involves suppression of adropin expression by cholesterol and 7-oxygenated sterols. Sensing of fatty acids, cholesterol and oxysterols by the RORalpha/gamma ligand-binding domain suggests a plausible functional link between adropin expression and cellular lipid metabolism. Furthermore, the nuclear receptors RORalpha/gamma and Rev-erb may couple adropin synthesis with circadian rhythms in carbohydrate and lipid metabolism. PMID- 29331512 TI - A format for reviewing a research paper. PMID- 29331511 TI - Maresin 1 regulates autophagy and inflammation in human periodontal ligament cells through glycogen synthase kinase-3beta/beta-catenin pathway under inflammatory conditions. AB - OBJECTIVE: Accumulating lines of evidence suggest that maresin 1 (MaR-1) exerts anti-inflammatory effects in many cell types and plays beneficial roles in inflammatory disease, such as peritonitis and colitis. Moreover, it has been demonstrated that MaR-1 play protective roles against localized aggressive periodontitis. However, the function and mechanism of MaR-1 in human periodontal ligament cells (PDL) cells from periodontitis are poorly understood. The present study aimed to clarify the effects and molecular mechanism of MaR-1 in PDL cell survival and inflammation. METHODS: PDL cells were isolated from the middle third of the root surface of premolars from four healthy humans; MTT assay and cell death detection ELISA assay were used to detect cell survival and apoptosis; Inflammatory cytokines level was measured by ELISA assay; RT-PCR and western blot was used to measure the mRNA and protein expression in this study. RESULTS: Here we found that MaR-1 treatment markedly promotes survival and inhibits apoptosis in PDL cell treated by LPS. MaR-1 treatment strikingly suppressed the production of LPS-induced pro-inflammatory cytokines IL-6, IL-8, TNF-alpha and IL-1beta. MaR 1 also promotes autophagy by increasing the ratio of LC3II/LC3I, the level of beclin-1 and reduced the expression of p62 in LPS treated PDL cells, which is beneficial to cell survival. Moreover, the results showed that MaR-1-mediated autophagy is dependent on the glycogen synthase kinase-3beta(GSK-3beta)/beta catenin signal pathway. The inhibitor of autophagy 3-MA and the inhibitor of the GSK-3beta/beta-catenin signal pathway LiCL both reverse the effects of MaR-1 on LPS-treated PDL cell survival and inflammation. CONCLUSION: MaR-1 promotes cell survival and alleviates cell inflammation by activating GSK-3beta/beta-catenin dependent autophagy. These results provide new insights into the mechanism of chronic periodontitis. PMID- 29331513 TI - Multiple myeloma and a mischievous pacemaker: A teaching case involving irradiation of a cardiovascular implantable electronic device. PMID- 29331514 TI - Employment of proteomic and immunological based methods for the identification of catalase as novel allergen from banana. AB - : Diagnostic reagents based on food allergen extracts often lack sufficient sensitivity. The introduction of well characterized food allergens in molecular allergy diagnosis has been recognized as valid approach to circumvent unstandardized allergen extracts. Banana fruit (Musa acuminata) is a well established allergen source which besides six characterized allergens, contains unidentified IgE reactive proteins whose clinical relevance remains undefined. By employment of a combinatorial peptide ligand library (CPLL) methodology with 2-D PAGE, mass spectrometric and 2-D immunoblot analysis, a novel allergen from banana fruit was detected in banana as catalase. A recombinant homologue of natural catalase was produced, isolated and biochemically characterized. The recombinant protein showed IgE reactivity in 7 out of 13 tested patients with suspected allergy to banana in immunoblot. Novel banana fruit allergens should be added as components to allergen-microarrays for the diagnosis and the monitoring of banana allergy. SIGNIFICANCE: By employment of CPLL methodology with 2-D PAGE, mass spectrometric and 2-D immunoblot analysis catalase from banana fruit is identified as a novel allergen, with proposed designation as Mus a 7. IgE reactive recombinant Mus a 7 was produced and should be included in a component resolved allergy diagnosis. PMID- 29331516 TI - Simultaneous saccharification and aerobic fermentation of high titer cellulosic citric acid by filamentous fungus Aspergillus niger. AB - Simultaneous saccharification and fermentation (SSF) is the most efficient operation in biorefining conversion, but aerobic SSF under high solids loading significantly faces the serious oxygen transfer limitation. This study took the first insight into an aerobic SSF by high oxygen demanding filamentous fungi in highly viscous lignocellulose hydrolysate. The results show that oxygen requirement in the aerobic SSF by Aspergillus niger was well satisfied for production of cellulosic citric acid. The record high citric acid titer of 136.3 g/L and the overall conversion yield of 74.9% of cellulose were obtained by the aerobic SSF. The advantage of SSF to the separate hydrolysis and fermentation (SHF) on citric acid fermentation was compared based on the rigorous Aspen Plus modeling. The techno-economic analysis indicates that the minimum citric acid selling price (MCSP) of $0.603 per kilogram by SSF was highly competitive with the commercial citric acid from starch feedstock. PMID- 29331517 TI - Tofu whey wastewater is a promising basal medium for microalgae culture. AB - Tofu whey wastewater (TWW) is an abundant, nutrient riched and safety wastewater and is regarded as an excellent alternative medium in fermentation. In this study, the feasibility of algal cultivation using TWW as the basal medium was investigated. Results indicated that through simple pH adjustment, TWW presented a better culture performance at autotrophic, heterotrophic, and mixotrophic modes compared with that of regular green algae medium, BG-11. The biomass productivities of Chlorella pyrenoidosa at each trophic mode were 4.76, 1.97, and 2.08 times higher than that cultured in BG-11 medium, respectively. Although a comparative or even lower lipid and protein content was obtained, much higher lipid and protein productivities were obtained in TWW compared to that of BG-11. The algal biomass accumulated in TWW can be used to produce high-value products. Therefore, TWW is a better alternative medium for efficient algal culture. PMID- 29331518 TI - Microwave-assisted ionic liquid-mediated rapid catalytic conversion of non-edible lignocellulosic Sunn hemp fibres to biofuels. AB - Sunn hemp fibre - a cellulose-rich crystalline non-food energy crop, containing 75.6% cellulose, 10.05% hemicellulose, 10.32% lignin, with high crystallinity (80.17%) and degree of polymerization (650) - is identified as a new non-food substrate for lignocellulosic biofuel production. Microwave irradiation is employed to rapidly rupture the cellulose's glycosidic bonds and enhance glucose yield to 78.7% at 160 degrees C in only 46 min. The reactants - long-chain cellulose, ionic liquid, transition metal catalyst, and water - form a polar supramolecular complex that rotates under the microwave's alternating polarity and rapidly dissipates the electromagnetic energy through molecular collisions, thus accelerating glycosidic bond breakage. In 46 min, 1 kg of Sunn hemp fibres containing 756 g of cellulose produces 595 g of glucose at 160 degrees C, and 203 g of hydroxymethyl furfural (furanic biofuel precursor) at 180 degrees C. Yeast mediated glucose fermentation produces 75.6% bioethanol yield at 30 degrees C, and the ionic liquid is recycled for cost-effectiveness. PMID- 29331515 TI - MHC class I loaded ligands from breast cancer cell lines: A potential HLA-I-typed antigen collection. AB - : To build a catalog of peptides presented by breast cancer cells, we undertook systematic MHC class I immunoprecipitation followed by elution of MHC class I loaded peptides in breast cancer cells. We determined the sequence of 3196 MHC class I ligands representing 1921 proteins from a panel of 20 breast cancer cell lines. After removing duplicate peptides, i.e., the same peptide eluted from more than one cell line, the total number of unique peptides was 2740. Of the unique peptides eluted, more than 1750 had been previously identified, and of these, sixteen have been shown to be immunogenic. Importantly, half of these immunogenic peptides were shared between different breast cancer cell lines. MHC class I binding probability was used to plot the distribution of the eluted peptides in accordance with the binding score for each breast cancer cell line. We also determined that the tested breast cancer cells presented 89 mutation-containing peptides and peptides derived from aberrantly translated genes, 7 of which were shared between four or two different cell lines. Overall, the high throughput identification of MHC class I-loaded peptides is an effective strategy for systematic characterization of cancer peptides, and could be employed for design of multi-peptide anticancer vaccines. SIGNIFICANCE: By employing proteomic analyses of eluted peptides from breast cancer cells, the current study has built an initial HLA-I-typed antigen collection for breast cancer research. It was also determined that immunogenic epitopes can be identified using established cell lines and that shared immunogenic peptides can be found in different cancer types such as breast cancer and leukemia. Importantly, out of 3196 eluted peptides that included duplicate peptides in different cells 89 peptides either contained mutation in their sequence or were derived from aberrant translation suggesting that mutation-containing epitopes are on the order of 2-3% in breast cancer cells. Finally, our results suggest that interfering with MHC class I function is one of the mechanisms of how tumor cells escape immune system attack. PMID- 29331519 TI - Understanding and misunderstanding randomized controlled trials. AB - Randomized Controlled Trials (RCTs) are increasingly popular in the social sciences, not only in medicine. We argue that the lay public, and sometimes researchers, put too much trust in RCTs over other methods of investigation. Contrary to frequent claims in the applied literature, randomization does not equalize everything other than the treatment in the treatment and control groups, it does not automatically deliver a precise estimate of the average treatment effect (ATE), and it does not relieve us of the need to think about (observed or unobserved) covariates. Finding out whether an estimate was generated by chance is more difficult than commonly believed. At best, an RCT yields an unbiased estimate, but this property is of limited practical value. Even then, estimates apply only to the sample selected for the trial, often no more than a convenience sample, and justification is required to extend the results to other groups, including any population to which the trial sample belongs, or to any individual, including an individual in the trial. Demanding 'external validity' is unhelpful because it expects too much of an RCT while undervaluing its potential contribution. RCTs do indeed require minimal assumptions and can operate with little prior knowledge. This is an advantage when persuading distrustful audiences, but it is a disadvantage for cumulative scientific progress, where prior knowledge should be built upon, not discarded. RCTs can play a role in building scientific knowledge and useful predictions but they can only do so as part of a cumulative program, combining with other methods, including conceptual and theoretical development, to discover not 'what works', but 'why things work'. PMID- 29331520 TI - Vitamin C attenuates biochemical and genotoxic damage in common carp (Cyprinus carpio) upon joint exposure to combined toxic doses of fipronil and buprofezin insecticides. AB - In the present study, potential protective role of Vitamin C (l-ascorbic acid) was investigated in aquaria acclimated common carp (Cyprinus carpio) following exposure for 96 h to combined toxic doses of fipronil (FP) and buprofezin (BPFN) insecticides in combination (FP: 200 MUg/L; 4.57 * 10-7 mol/L and BPFN: 50 mg/L; 1.64 * 10-4 mol/L). At end of 96 h exposure, fish were supplemented with low (25 mg/L) and high (50 mg/L) doses of Vitamin C, added once daily to aquaria water for continuous three weeks. Appropriate control groups were run in parallel. Fish behavior was monitored throughout for signs of toxicity. At completion of experiments, liver, kidney, brain and gills were excised for toxicity assessment and possible remediation by the Vitamin C through biochemical determination of reactive oxygen species (ROS), thiobarbituric acid reactive substances or TBARS, reduced glutathione (GSH) and total protein content, levels of catalase (CAT), superoxide dismutase (SOD) and peroxidase (POD), and the Comet assay. Hepatosomatic index (HSI), condition factor (CF), survival rate (SR), and combination index (CI) were also determined. Data were compared statistically at p < 0.05. Results showed significant behavioral and biochemical alterations, and DNA damage in the fish group exposed to FP and BPFN in combination. In fish groups supplemented with Vitamin C following FP and BPFN treatment, significant alleviation in tissue damage and toxic effects was represented by substantial decreases in ROS and TBARS production (p < 0.001), along with a concomitant significant increase in the survival rate, GSH and total protein content, HSI, CF, and activities of SOD, CAT and POD enzymes (p < 0.001). Mean tail length of comet and percent tail DNA decreased significantly (p < 0.001), which indicated amelioration of DNA damage. The study concludes that Vitamin C is an effective remedial treatment against FP and BPFN-induced damage in exposed fish. PMID- 29331521 TI - Increased transcript levels and kinetic function of pyruvate kinase during severe dehydration in aestivating African clawed frogs, Xenopus laevis. AB - The African clawed frog, Xenopus laevis, can withstand extremely arid conditions through aestivation, resulting in dehydration and urea accumulation. Aestivating X. laevis reduce their metabolic rate, and rely on anaerobic glycolysis to meet reduced ATP demands. The present study investigated how severe dehydration affected the transcript levels, kinetic profile, and phosphorylation state of the key glycolytic enzyme pyruvate kinase (PK) in the liver and skeletal muscle of X. laevis. Compared to control frogs, severely dehydrated frogs showed an increase in the transcript abundance of both liver and muscle isoforms of PK. While the kinetics of muscle PK did not differ between dehydrated and control frogs, PK from the liver of dehydrated frogs had a lower Km for phosphoenolpyruvate (PEP) (38%), a lower Ka for fructose-1,6-bisphosphate (F1,6P2) (32%), and a greater activation of PK via F1,6P2 (1.56-fold). PK from dehydrated frogs also had a lower phosphorylation-state (25%) in comparison to the enzyme from control frogs in the liver. Experimental manipulation of the phosphorylation-state of liver PK taken from control frogs by endogenous protein phosphatases resulted in decreased phosphorylation, and a similar kinetic profile as seen in dehydrated frogs. The physiological consequence of dehydration-induced PK modification appears to adjust PK function to remain active during a metabolically depressed state. This study provides evidence for the maintenance of PK activity through elevated mRNA levels and a dephosphorylation event which activates frog liver PK in the dehydrated state in order to facilitate the production of ATP via anaerobic glycolysis. PMID- 29331523 TI - Negative Evidence of Direct Differentiation from Bone-Marrow Cells to Keratinocytes in Normal and Wounded Skin Using Keratin 5-Specific Reporter Mice. PMID- 29331522 TI - Nanos3 not nanos1 and nanos2 is a germ cell marker gene in large yellow croaker during embryogenesis. AB - In this study, three nanos gene subtypes (Lcnanos1, Lcnanos2 and Lcnanos3) from Larimichthys crocea, were cloned and characterized. We determined the spatio temporal expression patterns of each subtype in tissues as well as the cellular localization of mRNA in embryos. Results showed that deduced Nanos proteins have two main homology domains: N-terminal CCR4/NOT1 deadenylase interaction domain and highly conserved carboxy-terminal region bearing two conserved CCHC zinc finger motifs. The expression levels of Lcnanos1 in testis were significantly higher than other tissues, followed by heart, brain, eye, and ovary. Nevertheless, both Lcnanos2 and Lcnanos3 were restrictedly expressed in testis and ovary, respectively. No signals of Lcnanos1 and Lcnanos2 expression were detected at any developmental stages during embryogenesis. On the contrary, the signals of Lcnanos3 were detected in all stages examined. Lcnanos3 transcripts were firstly localized to the distal end of cleavage furrow at the 2-cell stage. Subsequently, mounting positive signals started to appear in a small number of cells as the embryo developed to blastula stage and early-gastrula stage. As development proceeded, positive signals were found in the primitive gonadal ridge. These cells of Lcnanos3 positive signals implied the specification of the future PGCs at this stage. It also suggested that PGCs of croaker originate from four clusters of cells which inherit maternal germ plasm at blastula stage. Furthermore, we preliminarily analyzed the migration route of PGCs in embryos of L. crocea. In short, this study laid the foundation for studies on specification and development of germ cell from L. crocea during embryogenesis. PMID- 29331524 TI - Strategies and technical challenges for imaging oligometastatic disease: Recommendations from the European Organisation for Research and Treatment of Cancer imaging group. AB - Patients with oligometastatic disease (OMD) often have controllable symptoms, and cures are possible. Technical improvements in surgery and radiotherapy have introduced the option of metastasis-directed ablative therapies as an adjunct or alternative to standard-of-care systemic therapies. Several clinical trials and registries are investigating the benefit of these therapeutic approaches across several cancer sites. This requires that patients are correctly included and followed with appropriate imaging. This article discusses the evidence and offers recommendations for the implementation of standard-of-care (Response Evaluation Criteria in Solid Tumours measurements on computed tomography [CT], magnetic resonance imaging [MRI] and bone scintigraphy) and advanced imaging modalities (functional, metabolic and radionuclide targeted) for identifying and following up patients with OMD. Imaging requirements for recognising OMD vary with tumour type, metastatic location, and timing of measurement in relation to previous treatment. At each point in the disease cycle (diagnosis, response assessment and follow-up), imaging must be tailored to the clinical question and the context of prior treatment. The differential use of whole-body approaches such as 18F-FDG positron emission tomography (PET)/CT, diffusion-weighted MRI, 18F-Choline-PET/CT and 68Ga-prostate specific membrane antigen-PET/CT require rationalisation depending on clinical risk assessment. Optimal standardised imaging approaches will enable OMD trials to document patterns of disease progression and outcomes of treatment. Quality assured and quality controlled imaging data included in databases such as the European Organisation for Research and Treatment of Cancer Imaging platform for the Oligocare trial (a prospective, large-scale observational basket study being set up to collect outcome data from patients with OMD treated with radiation therapy) will establish a large and high-quality imaging warehouse for future research. PMID- 29331525 TI - Production and characterization of ectoine using a moderately halophilic strain Halomonas salina BCRC17875. AB - This study attempted to utilize Halomonas salina BCRC17875 to produce ectoine by optimizing the agitation speed and medium composition. In addition, the chemical structure of ectoine produced by H. salina BCRC17875 was determined. The results indicate that ectoine production reached 3.65 g/L at 38 h of cultivation when the agitation rate and NaCl concentration were fixed at 200 rpm and 2.0 M, respectively. It reached 9.20 g/L at 44 h of cultivation when the major medium components were yeast extract (56 g/L), glutamate (74.40 g/L), and ammonium sulfate (14 g/L). After the nitrogen concentration had been evaluated, evaluation of the nitrogen concentration revealed that the ectoine production reached 11.80 g/L at 44 h of cultivation when 56 g/L of yeast extract and 28 g/L of ammonium sulfate were used. Ectoine production reached 13.96 g/L at 44 h of cultivation when the carbon/nitrogen ratio was fixed at 3/1 using 84 g/L of yeast extract and 28 g/L of ammonium sulfate. Furthermore, the identification of ectoine were identified and characterized by fast atom bombardment mass spectrometry (FAB-MS) and 1H NMR. The results demonstrated a fermentation strategy was successful in increasing ectoine production, and that the fermentation medium of ectoine had commercialization potential. PMID- 29331527 TI - Construction of sake yeast with low production of dimethyl trisulfide precursor by a self-cloning method. AB - Dimethyl trisulfide (DMTS) is the primary component responsible for "hineka", the stale aroma of Japanese sake. Deletion of the MRI1 or MDE1 gene of sake yeast, encoding 5'-methylthioribose-1-phosphate isomerase and 5'-methylthioribulose-1 phosphate dehydratase, respectively, has been reported to greatly reduce the amount of DMTS precursor (DMTS-P1) in sake and to suppress the formation of DMTS during storage. In this study, we constructed sake yeast strains lacking MRI1 gene function by a self-cloning method. Two methods were applied: in one, a stop codon was introduced in the MRI1 ORF by point mutation; in the other, the entire MRI1 ORF was deleted from the genome. In both methods, a plasmid vector containing drug-resistance and counter-selectable markers was used to introduce the mutation. We successfully obtained the strains, which did not contain the plasmid sequences, by both methods. Small-scale sake brewing tests using these SC strains (strains obtained by the self-cloning method) found that DMTS-P1 was hardly detected in sake brewed with SC strains, and DMTS production after sake storage was greatly reduced as compared with the parent strain. The components of brewed sake were almost the same between the SC and parent strains. These results suggest that SC strains can produce sake with higher flavor stability without changing the sake brewing properties. PMID- 29331526 TI - Valerate production by Megasphaera elsdenii isolated from pig feces. AB - Megasphaera elsdenii is able to produce several short-chain fatty acids (SCFAs), such as acetate, propionate, butyrate, and valerate. These SCFAs serve as an energy source for host animals and play an important role in gut health. In this study, M. elsdenii was isolated from pig feces that had been collected from two farms located in distinct areas of Japan. These M. elsdenii isolates were genotyped, and 7 representative strains were selected. When these 7 strains and M. elsdenii JCM 1772T were cultured with lactate for 24 h, all 7 strains produced valerate as a predominant SCFA. Therefore, the valerate-producing M. elsdenii inhabits a wide area of Japan. In contrast, M. elsdenii JCM 1772T produced acetate, propionate, butyrate, and valerate at similar levels. When the Y2 strain, one of the 7 representative strains, was cultured without lactate, low levels of valerate accumulated. In contrast, in a time course of lactate fermentation by the Y2 strain, lactate was rapidly consumed, and acetate and propionate were produced after 6 h of incubation. Thereafter, acetate and propionate were consumed from 6 to 12 h after the start of the incubation, and valerate and butyrate were produced. In most of the previously described M. elsdenii strains, valerate was not a predominant SCFA. Therefore, the M. elsdenii Y2 strain showed an unique metabolism in which valerate was produced as a primary end product of lactate fermentation. PMID- 29331528 TI - Expression of a thermotolerant laccase from Pycnoporus sanguineus in Trichoderma reesei and its application in the degradation of bisphenol A. AB - The laccase gene from Pycnoporus sanguineus was cloned and inserted between the strong Pcbh1 promoter and the Tcbh1 terminator from Trichoderma reesei to form the recombinant plasmid pCH-lac. Using Agrobacterium-mediated technique, the pCH lac was integrated into the chromosomes of T. reesei. Twenty positive transformants were obtained by employing hygromycin B as a selective agent. PCR was used to confirm that the laccase gene was integrated into the chromosomal DNA of T. reesei. Laccase production by recombinant transformants was performed in shaking flasks, and the activity of laccase reached 8.8 IU/mL after 96-h fermentation under a batch process, and 17.7 IU/mL after 144-h fermentation using a fed-batch process. SDS-PAGE analysis of the fermentation broth showed that the molecular mass of the protein was about 68 kDa, almost the same as that of the laccase produced by P. sanguineus, which indicated that laccase was successfully expressed in T. reesei and secreted out of the cells. The laccase produced by the recombinant T. reesei showed good thermal stability, and could degrade the toxic phenolic material bisphenol A efficiently, after 1-h reaction with 0.06 IU/mL laccase and 0.5 mmol/L ABTS as the mediator at 60 degrees C and pH 4.5, the degradation rate reached 95%, which demonstrated that it had great potential value in treating the household garbage and wastewater containing the bisphenol A. PMID- 29331529 TI - Effect of acids produced from carbohydrate metabolism in cryoprotectants on the viability of freeze-dried Lactobacillus and prediction of optimal initial cell concentration. AB - For the industrial production of probiotics powder, various sugars have been used as cryoprotectants to preserve probiotics during freeze-drying. Some of these sugars can be metabolized by Lactobacillus with the production of acids during the mix. In this study, we investigated the effect of acids on ATPase, beta galactosidase, lactate dehydrogenase (LDH), integrity and fluidity of cell membrane and the survival rate of Lactobacillus during freeze-drying. In the presence of Lactobacillus, acids were produced from cryoprotectants containing fermentable sugars before freezing, resulting in a decrease in the pH of the bacterial suspension to below 5.0. During freeze-drying, the acids caused a loss of viability of Lactobacillus due to aggravated damage to ATPase, beta galactosidase and cell membrane fluidity, but not LDH and cell membrane integrity. This finding implied that cryoprotectants that do not lead to the production of acids are effective in improving the survival rate of freeze-dried Lactobacillus. Here, a new formula was proposed for a protectant containing whey protein isolate (WPI) and rhamnose, which were not metabolized. In addition, linear-regression analyses were performed on the proportion of cryoprotectants (M) against cell paste (m), total cell count (N), total surface area (St) and total volume (Vt) of bacteria for 100% survival rate. The total surface areas of bacteria were found to be highly correlated with the amount of proposed cryoprotectant. The following prediction equation was established for the optimal initial cell concentration for a 100% survival rate of freeze-dried Lactobacillus: N (4pir2+2pil)=(0.66+/-0.03)M. PMID- 29331530 TI - A qualitative synthesis of pharmacist, other health professional and lay perspectives on the role of community pharmacy in facilitating care for people with long-term conditions. AB - BACKGROUND: There is increasing interest in an enhanced role for community pharmacy (CP) in facilitating care for people with long-term conditions (LTCs). It is important to understand the perspectives of stakeholders in order to identify key issues that may impact on future development of the role and related services. OBJECTIVES: Explore pharmacist, other health professional and lay perspectives on the role of CP in facilitating care for people with LTCs. METHODS: Synthesis of qualitative research from UK based studies published between 2007 and January 2017 using a meta-ethnographic interpretative approach. RESULTS: Variation in the conceptualisation of the role of CP in facilitating the care of people with LTCs was apparent across and within lay and health professional accounts. Despite evidence of positive attitudes and a culture amenable to change, there remains a lack of clarity about the existing and potential role of the pharmacist in this area. A theoretical framework is proposed that highlights the dynamic nature of the process involved in the development of lay and health professionals' understanding of the role and engagement with services. Influences on this process include experience and perceived need, service operationalisation, and ongoing developments within wider healthcare policy and commercial environments. Perceived integration with existing professional and peer support structures, views about traditional medical hierarchies and concerns about potential duplication are important influences on the value attributed to the role of CP and the services provided. CONCLUSIONS: There is acknowledged potential for an extended role in CP to support the care of people with LTCs. To ensure the likelihood of successful engagement with patients and positive health outcomes, developments should acknowledge influences within and beyond the CP setting. Potential overlap with other healthcare services should be explicitly addressed, ensuring this is framed and delivered as valued reinforcement with clearly defined boundaries of responsibility. PMID- 29331531 TI - Profiles of beta-Amyloid Peptides and Key Secretases in Brain Autopsy Samples Differ with Sex and APOE epsilon4 Status: Impact for Risk and Progression of Alzheimer Disease. AB - The APOE epsilon4 allele was originally reported to contribute to risk of Alzheimer's disease (AD) in women, yet male and female AD patient-derived data are routinely pooled. Histopathological hallmarks of AD include neurofibrillary tangles centered on hyperphosphorylated Tau and plaques composed of the beta amyloid (Abeta) peptide that is derived by sequential secretase-mediated cleavage of the Amyloid Protein Precursor (APP). We chose to examine profiles of Abeta(1 40), Abeta(1-42), and N-truncated (i.e., p3-related) fragments in the plaque associated fraction of autopsied cortical and corresponding hippocampal samples from donors with a diagnosis of early-onset (EOAD) and late-onset (LOAD) AD. Levels of Abeta(1-40), Abeta(1-42), and the p3 fragment-enriched pool were increased in EOAD and LOAD samples, and correlated well within -but not between- regions. Counterintuitively, these increases were similar regardless of the AD donor's APOE epsilon4 status. Focusing on the donor's sex and APOE epsilon4 status as nominal variables (i.e., omitting diagnosis from the stratification) revealed that increases in Abeta peptides were specific to female carriers of the epsilon4 allele and correlated with the proportional expression of BACE1/beta secretase and ADAM10/alpha-secretase in the cortex and with nicastrin (gamma secretase) expression in the hippocampus. These data preliminarily support the possibility that AD follows distinct amyloidogenic processes in males and females, and that the APOE epsilon4 allele exerts a major influence on the disease process, particularly in women. This knowledge could significantly impact the (re)interpretation of unsuccessful outcomes of clinical interventions targeting either Abeta peptides directly or the secretases implicated in APP processing. PMID- 29331532 TI - High-fat Diet Mediates Anxiolytic-like Behaviors in a Time-dependent Manner Through the Regulation of SIRT1 in the Brain. AB - The consumption of a high-fat diet (HFD) and obesity have been associated not only with metabolic diseases but also with neuropsychiatric diseases, such as depression and anxiety. However, results on the effects of an HFD on anxiety are controversial, since both anxiogenic and anxiolytic effects have been reported. In this study, we evaluated the effects of both short- and long-term intake of an HFD on anxiety-like behaviors. To explore the impact of time on the association between an HFD and anxiety, mice were fed with an HFD for 4 weeks or 12 weeks. Compared with control-diet mice, mice given an HFD for 4 weeks displayed anxiolytic-like behaviors. At the same time, we observed decreased SIRT1 expression in the mPFC and the amygdala of HFD-fed mice. Moreover, resveratrol, an activator of SIRT1, reversed the anxiolytic-like behaviors in HFD-fed mice. However, after 12 weeks of consuming a high-fat diet, mice did not exhibit any anti-anxiety behavior or further decreases in SIRT1 expression in the aforementioned brain regions compared with CD-fed mice. When EX-527, a SIRT1 inhibitor, was intraperitoneally injected, we observed anxiolytic effects in the CD-fed mice but not in the 12-week HFD-fed mice. Collectively, our data demonstrate that exposure to a short-term HFD can induce anxiolytic behaviors, which may be associated with decreased SIRT1 in the mPFC and the amygdala. However, this effect is abolished when the high-fat diet is extended to 12 weeks. Together, these results demonstrate that SIRT1 plays an essential role in regulating mood-related behaviors in HFD-fed mice. PMID- 29331533 TI - A woman's hand and a lion's heart: Skills and attributes for rural midwifery practice in New Zealand and Scotland. AB - OBJECTIVE: the complex and challenging nature of rural midwifery is a global issue. New Zealand and Scotland both face similar ongoing challenges in sustaining a rural midwifery workforce, and understanding the best preparation for rural midwifery practice. This study aimed to explore the range of skills, qualities and professional expertise needed for remote and rural midwifery practice. DESIGN: online mixed methods: An initial questionnaire via a confidential SurveyMonkey(r) was circulated to all midwives working with rural women and families in New Zealand and Scotland. A follow-up online discussion forum offered midwives a secure environment to share their views about the specific skills, qualities and challenges and how rural midwifery can be sustained. Data presented were analysed using qualitative descriptive thematic analysis. SETTING AND PARTICIPANTS: 222 midwives participated in this online study with 145 from New Zealand and 77 from Scotland. FINDINGS: underpinning rural midwifery practice is the essence of 'fortitude' which includes having the determination, resilience, and resourcefulness to deal with the many challenges faced in everyday practice and to safeguard midwifery care for women within their rural communities. KEY CONCLUSIONS: rural midwives in New Zealand and Scotland who work in rural practice specifically enhance skills such as preparedness, resourcefulness and developing meaningful relationships with women and other colleagues which enables them to safeguard rural birth. IMPLICATIONS FOR PRACTICE: findings will inform the preparation of midwives for rural midwifery practice. PMID- 29331534 TI - Perinatal palliative care: Integration in a United States nurse midwifery education program. AB - Midwifery students with perinatal palliative care education develop a skillset to provide holistic midwifery care to women and families who are experiencing stillbirth or life-limiting fetal diagnoses. This paper presents a model of perinatal palliative care in a United States midwifery education program. By utilizing evidence based practices and national programs, perinatal palliative care can be threaded through midwifery curricula to achieve international standards of practice and competencies. Most importantly, enhancing perinatal palliative care education will better prepare future midwives for when a birth outcome is not what was expected at the outset of a pregnancy. PMID- 29331535 TI - Estrogen deprivation aggravates cardiometabolic dysfunction in obese-insulin resistant rats through the impairment of cardiac mitochondrial dynamics. AB - The incidence of cardiovascular disease and metabolic syndrome increases after the onset of menopause, suggesting estrogen has a vital role in their prevention. Mitochondrial dynamics are known to play an important role in the maintenance of cardiac physiological function. However, the effects of estrogen deprivation on cardiometabolic status and cardiac mitochondrial dynamics under conditions of obese-insulin resistance have never been investigated. We hypothesized that estrogen deprivation aggravates cardiac dysfunction through increased cardiac mitochondrial fission in obese-insulin resistant rats. Female rats were fed on either a high fat (HFD, 57.60% fat) or normal (ND, 19.77% fat) diet for 13 weeks. The rats were then divided into 4 groups. Two sham groups (HFS and NDS) and 2 operated or ovariectomized (HFO and NDO) groups (n = 8/group). Six weeks after surgery, metabolic status, heart rate variability (HRV), left ventricular (LV) function, cardiac mitochondrial function and dynamics, and metabolic parameters were determined. Insulin resistance developed in NDO, HFS and HFO rats as indicated by increased plasma insulin and HOMA index. Although rats in both NDO and HFS groups had markedly impaired LV function indicated by reduced %LVFS and impaired cardiac mitochondrial function, rats in the HFO group had the most severe impairments. Moreover, the estrogen deprived rats (NDO and HFO) had increased cardiac mitochondrial fission through activation of phosphorylation of Drp-1 at serine 616. Our findings indicated that estrogen deprivation caused the worsening of LV dysfunction through increased cardiac mitochondrial fission in obese-insulin resistant rats. PMID- 29331536 TI - Chronic inflammation and sarcopenia: A regenerative cell therapy perspective. AB - Sarcopenia is characterized by reduced skeletal muscle mass and strength in older individuals. It is one of the leading cause of physical limitation in older adults, and associated with wide spectrum of adverse events including disability and mortality. The phenomenon of chronic-inflammation or inflamm-aging with aging is known to be a major contributor to myriad of geriatric conditions including sarcopenia. Recent advances in regenerative medicine, in particular cell therapy have opened up new possibilities to ameliorate broad range of inflammatory disorders. In this context, we will discuss on possibilities of modulation of the chronic-inflammatory activation in older adults using regenerative cell therapy strategies. This review is an effort toward reducing the growing burden of sarcopenia related disability and dependency in the aging population. PMID- 29331537 TI - Preparation of acetylated nanofibrillated cellulose from corn stalk microcrystalline cellulose and its reinforcing effect on starch films. AB - Acetylated nanofibrillated cellulose (ANFC) with different degrees of substitution (DS) was prepared from corn-stalk microcrystalline cellulose (MCC) using chemical-mechanical combined processes. The physicochemical properties of nanofibrillated cellulose (NFC) and ANFC were investigated together with the influence of added nanoparticles on the mechanical properties of starch films. The acetylation reaction was monitored by Fourier transform infrared (FT-IR) and titration. Particle size and morphological of NFC and ANFC were studied by atomic force microscope (AFM). The results suggested that NFC had nano-order-unit web like network with mean diameter of ~24 nm. The thermostability of all samples was found to decrease as the modification extent rose, and mechanical disposal revealed no significant influence on the DS and crystalline structure of cellulose. The ANFC with the DS value of 0.35 demonstrated the best enhancement effect on starch films, with increased tension strength (TS) by 201%. The tensile tests confirmed that the web-like network structure of NFC was more conducive to strength, and proper chemical modification could improve the uniform dispersion of nano-fillers in starch to result in higher strength performances. PMID- 29331538 TI - Differential lipid metabolism outcomes associated with ADRB2 gene polymorphisms in response to two dietary interventions in overweight/obese subjects. AB - BACKGROUND AND AIMS: A precise nutrigenetic management of hypercholesterolemia involves the understanding of the interactions between the individual's genotype and dietary intake. The aim of this study was to analyze the response to two dietary energy-restricted interventions on cholesterol changes in carriers of two ADRB2 polymorphisms. METHODS AND RESULTS: A 4-month nutritional intervention was conducted involving two different hypo-energetic diets based on low-fat (LF) and moderately high-protein (MHP) dietary patterns. A total of 107 unrelated overweight/obese individuals were genotyped for two ADRB2 non-synonymous polymorphisms: Arg16Gly (rs1042713) and Gln27Glu (rs1042714). Genotyping was performed by next-generation sequencing and haplotypes were phenotypically screened. Anthropometric measurements and the biochemical profile were assessed by conventional methods. Both diets induced cholesterol decreases at the end of both nutritional interventions. Interestingly, phenotypical differences were observed according to the Arg16Gly polymorphism. Within the MHP group, Gly16Gly homozygotes had lower reductions in total cholesterol (-6.5 mg/dL vs. -24.2 mg/dL, p = 0.009), LDL-c levels (-1.4 mg/dL vs. -16.5 mg/dL, p = 0.005), and non HDL-c (-4.5 mg/dL vs. -21.5 mg/dL, p = 0.008) than Arg16 allele carriers. Conversely, within the LF group, Gly16Gly homozygotes underwent similar falls in total cholesterol (-18.5 mg/dL vs. -18.7 mg/dL, ns), LDL-c levels (-9.7 mg/dL vs. -13.1 mg/dL, ns), and non-HDL-c (-15.3 mg/dL vs. -15.7 mg/dL, ns) than Arg16 allele carriers. The Gln27Glu polymorphism and the Gly16/Glu27 haplotype showed similar, but not greater effects. CONCLUSIONS: An energy-restricted LF diet could be more beneficial than a MHP diet to reduce serum cholesterol, LDL-c, and non HDL-c among Gly16Gly genotype carriers. CLINICALTRIALS.GOV: Identifier: NCT02737267. PMID- 29331540 TI - Plant Flowering: Imposing DNA Specificity on Histone-Fold Subunits. AB - CONSTANS (CO) is a master regulator of flowering time, although the mechanisms underlying its role as a transcriptional regulator are not well understood. The DNA-binding domain of CO shares homology with that of NUCLEAR FACTOR YA (NF-YA), a subunit of the CCAAT-binding trimer NF-Y. Recent publications indicate that CO and its rice homolog HEADING DATE 1 (Hd1) form heterotrimers with the histone fold subunits of NF-Y to efficiently bind promoter elements in the florigen genes. Differences in the DNA-binding specificities of NF-Y and NF-CO can be conceptualized based on our knowledge of the 3D structure of the NF-Y/CCAAT complex. Here we discuss the modes of assembly of NF-Y-like heterotrimers and possible models for their activity as flexible sequence-specific transcriptional regulators. PMID- 29331541 TI - Perilesional edema in brain cancer: Independent prognosticator or epiphenomenon of biomolecular signature? PMID- 29331542 TI - Concurrent chemoradiotherapy alone is feasible for esophageal squamous cell carcinoma patients not suitable for surgery. PMID- 29331539 TI - Serum vitamin D deficiency and risk of hospitalization for heart failure: Prospective results from the Moli-sani study. AB - BACKGROUND AND AIMS: Evidence indicates that Vitamin D deficiency may be associated with increased risk of cardiovascular disease, although findings on risk of heart failure (HF) are controversial. We investigated the relationship between serum Vitamin D and the incidence of hospitalization for HF in a large prospective cohort of Italian adults. METHODS AND RESULTS: 19,092 (49% men, age range 35-99 years) HF-free individuals from the Moli-sani study, with complete data on serum Vitamin D (25-hydroxyvitamin) levels and incident hospitalized HF, were analysed. The cohort was followed up for a median of 6.2 years. Baseline serum Vitamin D levels were categorized in deficient (<10 ng/mL), insufficient (10-29 ng/mL), and normal (>=30 ng/mL) Incident cases of hospitalization for HF were identified by linkage with the regional hospital discharge registry. Hazard ratios (HRs) were calculated using Cox-proportional hazard models. The prevalence of normal, insufficient or deficient levels of Vitamin D was 12.2%, 79.6% and 8.2%, respectively. During follow-up, 562 admissions to hospital for HF were identified. The incidence of HF was 1.6%, 2.9% and 5.3%, respectively in subjects with normal, insufficient and deficient levels of Vitamin D. After multivariable analysis, individuals with deficiency of Vitamin D had a higher risk of hospitalization for HF (HR: 1.61, 95%CI: 1.06-2.43) than those with normal levels. Further adjustment for subclinical inflammation did not substantially change the association between Vitamin D deficiency and HF. CONCLUSION: Deficiency of Vitamin D was associated, independently of known HF risk factors, with an increased risk of hospitalization for HF in an Italian adult population. PMID- 29331543 TI - Consolidation chemotherapy after definite concurrent chemoradiation in patients with non-operable esophageal cancer: Is it useful? PMID- 29331544 TI - Role of bronchoscopy in foreign body aspiration management in adults: A seven year retrospective study. PMID- 29331545 TI - Reply by Authors. PMID- 29331546 TI - Clinically Localized Prostate Cancer: AUA/ASTRO/SUO Guideline. Part II: Recommended Approaches and Details of Specific Care Options. AB - PURPOSE: This guideline is structured to provide a clinical framework stratified by cancer severity to facilitate care decisions and guide the specifics of implementing the selected management options. The summary presented herein represents Part II of the two-part series dedicated to Clinically Localized Prostate Cancer: AUA/ASTRO/SUO Guideline discussing risk stratification and care options by cancer severity. Please refer to Part I for discussion of specific care options and outcome expectations and management. MATERIALS AND METHODS: The systematic review utilized in the creation of this guideline was completed by the Agency for Healthcare Research and Quality and through additional supplementation by ECRI Institute. This review included articles published between January 2007 and March 2014 with an update search conducted through August 2016. When sufficient evidence existed, the body of evidence for a particular treatment was assigned a strength rating of A (high), B (moderate), or C (low) for support of Strong, Moderate, or Conditional Recommendations. Additional information is provided as Clinical Principles and Expert Opinions (table 2 in supplementary unabridged guideline, http://jurology.com/). RESULTS: The AUA (American Urological Association), ASTRO, and SUO (Society of Urologic Oncology) formulated an evidence-based guideline based on a risk stratified clinical framework for the management of localized prostate cancer. CONCLUSIONS: This guideline attempts to improve a clinician's ability to treat patients diagnosed with localized prostate cancer, but higher quality evidence in future trials will be essential to improve the level of care for these patients. In all cases, patient preferences should be considered when choosing a management strategy. PMID- 29331547 TI - Editorial Comment. PMID- 29331549 TI - Is sequence awareness mandatory for perceptual sequence learning: An assessment using a pure perceptual sequence learning design. AB - We examined the role of sequence awareness in a pure perceptual sequence learning design. Participants had to react to the target's colour that changed according to a perceptual sequence. By varying the mapping of the target's colour onto the response keys, motor responses changed randomly. The effect of sequence awareness on perceptual sequence learning was determined by manipulating the learning instructions (explicit versus implicit) and assessing the amount of sequence awareness after the experiment. In the explicit instruction condition (n = 15), participants were instructed to intentionally search for the colour sequence, whereas in the implicit instruction condition (n = 15), they were left uninformed about the sequenced nature of the task. Sequence awareness after the sequence learning task was tested by means of a questionnaire and the process-dissociation procedure. The results showed that the instruction manipulation had no effect on the amount of perceptual sequence learning. Based on their report to have actively applied their sequence knowledge during the experiment, participants were subsequently regrouped in a sequence strategy group (n = 14, of which 4 participants from the implicit instruction condition and 10 participants from the explicit instruction condition) and a no-sequence strategy group (n = 16, of which 11 participants from the implicit instruction condition and 5 participants from the explicit instruction condition). Only participants of the sequence strategy group showed reliable perceptual sequence learning and sequence awareness. These results indicate that perceptual sequence learning depends upon the continuous employment of strategic cognitive control processes on sequence knowledge. Sequence awareness is suggested to be a necessary but not sufficient condition for perceptual learning to take place. PMID- 29331548 TI - Effect of outpatient antibiotics for urinary tract infections on antimicrobial resistance among commensal Enterobacteriaceae: a multinational prospective cohort study. AB - OBJECTIVES: We quantified the impact of antibiotics prescribed in primary care for urinary tract infections (UTIs) on intestinal colonization by ciprofloxacin resistant (CIP-RE) and extended-spectrum beta-lactamase-producing Enterobacteriaceae (ESBL-PE), while accounting for household clustering. METHODS: Prospective cohort study from January 2011 to August 2013 at primary care sites in Belgium, Poland and Switzerland. We recruited outpatients requiring antibiotics for suspected UTIs or asymptomatic bacteriuria (exposed patients), outpatients not requiring antibiotics (non-exposed patients), and one to three household contacts for each patient. Faecal samples were tested for CIP-RE, ESBL PE, nitrofurantoin-resistant Enterobacteriaceae (NIT-RE) and any Enterobacteriaceae at baseline (S1), end of antibiotics (S2) and 28 days after S2 (S3). RESULTS: We included 300 households (205 exposed, 95 non-exposed) with 716 participants. Most exposed patients received nitrofurans (86; 42%) or fluoroquinolones (76; 37%). CIP-RE were identified in 16% (328/2033) of samples from 202 (28%) participants. Fluoroquinolone treatment caused transient suppression of Enterobacteriaceae (S2) and subsequent two-fold increase in CIP-RE prevalence at S3 (adjusted prevalence ratio (aPR) 2.0, 95% CI 1.2-3.4), with corresponding number-needed-to-harm of 12. Nitrofurans had no impact on CIP-RE (aPR 1.0, 95% CI 0.5-1.8) or NIT-RE. ESBL-PE were identified in 5% (107/2058) of samples from 71 (10%) participants, with colonization not associated with antibiotic exposure. Household exposure to CIP-RE or ESBL-PE was associated with increased individual risk of colonization: aPR 1.8 (95% CI 1.3-2.5) and 3.4 (95% CI 1.3-9.0), respectively. CONCLUSIONS: These findings support avoidance of fluoroquinolones for first-line UTI therapy in primary care, and suggest potential for interventions that interrupt household circulation of resistant Enterobacteriaceae. PMID- 29331551 TI - Difficult Removal of a Kinked Swan-Ganz Catheter. PMID- 29331550 TI - Double-Lumen Endotracheal Tube Placement: Knowing Depth of Insertion Firsthand May Make a Difference. PMID- 29331552 TI - Malperfusion During Hypothermic Antegrade Cerebral Perfusion: Cerebral Perfusion Index-An Early Indicator Compared to Cerebral Oximetry. PMID- 29331553 TI - Unexpected Findings in a Man with a Repaired Type A Aortic Dissection and a New Stroke. PMID- 29331554 TI - Potential Role of Transfontanelle Ultrasound for Infants Undergoing Modified Blalock-Taussig Shunt. AB - OBJECTIVE: Transfontanelle ultrasound is a noninvasive method for assessing cerebral blood flow in neonates and infants. The authors applied this technique as a point-of-care tool, before and after modified Blalock-Taussig shunt procedure, to evaluate cerebral perfusion. DESIGN: Retrospective, observational study. SETTING: Tertiary care children's hospital. PARTICIPANTS: Ten infants undergoing modified Blalock-Taussig shunt procedure. OBSERVATION: Transfontanelle ultrasound examinations with modified resistive index were analyzed before and after the modified Blalock-Taussig shunt procedure. MEASUREMENTS AND MAIN RESULTS: Two infants died and 2 patients required a revision procedure due to shunt thrombosis. Baseline-modified resistive index and regional cerebral oxygenation were comparable between the right and left hemisphere. However, after the procedure, the modified resistive index decreased at both sides of the internal carotid arteries compared with baseline values (p value right side = 0.012, left side = 0.036) and was greater at the ipsilateral internal carotid arteries with the shunt (p = 0.012, mean difference = 0.07, 95% confidence interval [CI] 0.02-0.12). Four infants with the large patent ductus arteriosus presented diastolic reverse flows at both internal carotid arteries at baseline. However, the diastolic reverse flow disappeared after the procedure. An infant who developed diastolic reverse flow after the procedure, died. CONCLUSIONS: Transfontanelle ultrasound is a feasible tool for assessing the pattern of shunt flow and cerebral perfusion before and after the modified Blalock-Taussig shunt procedure. The transfontanelle ultrasound examinations may have potential role in assessing "over-shunting," but it needs more studies. PMID- 29331555 TI - Preoperative Thromboelastographic Profile of Patients with Congenital Heart Disease: Association of Hypercoagulability and Decreased Heparin Response. AB - OBJECTIVE: To describe the demographic and thromboelastographic characteristics of patients with congenital heart disease presenting with decreased heparin response before cardiac surgery. DESIGN: Retrospective, observational study. SETTING: Single institution, tertiary, academic, university hospital. PARTICIPANTS: The study comprised 496 pediatric and adult patients undergoing cardiac surgery for congenital heart disease. INTERVENTIONS: Retrospective review of medical records. MEASUREMENTS AND MAIN RESULTS: Data on preoperative thromboelastography (TEG), demographics, and response to heparin were collected retrospectively. Logistic regression analysis was used to study the association between TEG and response to heparin. Decreased heparin response (defined as activated clotting time <480 s initial bolus of 300 U/kg heparin) was observed in 23.6% of patients presenting for surgery. Age distribution and preoperative coagulation profiles were similar for both nonresponders and responders to heparin. Preoperatively, nonresponders demonstrated all thromboelastrographic characteristics consistent with a hypercoagulable profile (shorter reaction time, K value, wider angle, and maximum amplitude). Univariate logistic regression identified all TEG variables significantly associated with decreased heparin response. After adjustment for age, procedure type, and the presence of cyanosis, a multivariate logistic regression model identified the TEG variable K (<=1.3 min) as being significantly associated with decreased heparin response (odds ratio 3.7; confidence interval 2.3-5.8; p < 0.0001). CONCLUSIONS: Decreased response to heparin before cardiac surgery in patients with congenital heart disease is associated with preoperative hypercoagulability identified using a viscoelastic test. Additional studies are needed to better understand the etiology of decreased heparin response and potential clinical strategies to improve anticoagulation management. PMID- 29331556 TI - Polypoidal Choroidal Vasculopathy: Definition, Pathogenesis, Diagnosis, and Management. AB - Polypoidal choroidal vasculopathy (PCV) is an age-related macular degeneration (AMD) subtype and is seen particularly in Asians. Previous studies have suggested disparity in response to intravitreal injections of anti-vascular endothelial growth factor (VEGF) agents between PCV and typical AMD, and thus, the preferred treatment for PCV has remained unclear. Recent research has provided novel insights into the pathogenesis of PCV, and imaging studies based on OCT suggest that PCV belongs to a spectrum of conditions characterized by pachychoroid, in which disturbance in the choroidal circulation seems to be central to its pathogenesis. Advances in imaging, including enhanced depth imaging, swept-source OCT, en face OCT, and OCT angiography, have facilitated the diagnosis of PCV. Importantly, 2 large, multicenter randomized clinical trials evaluating the safety and efficacy of anti-VEGF monotherapy and combination with photodynamic therapy (PDT) recently reported initial first-year outcomes, providing level I evidence to guide clinicians in choosing the most appropriate therapy for PCV. In this review, we summarize the latest updates in the epidemiologic features, pathogenesis, and advances in imaging and treatment trials, with a focus on the most recent key clinical trials. Finally, we propose current management guidelines and recommendations to help clinicians manage patients with PCV. Remaining gaps in current understanding of PCV, such as significance of polyp closure, high recurrence rate, and heterogeneity within PCV, are highlighted where further research is needed. PMID- 29331557 TI - Soil-to-plant transfer factors of natural radionuclides (226Ra and 40K) in selected Thai medicinal plants. AB - A soil-to-plant transfer factor (TF) is an important parameter that could be used to estimate radionuclides levels in medicinal plants. This work reports concentrations of natural radionuclides (226Ra and 40K) and TFs in six Thai medicinal plants grown in central Thailand using an HPGe gamma ray spectrometer. Either root, leaf, or flower parts of each medicinal plant were selected for use in the investigation according to their practical uses in traditional medicine. The results showed that due to K being essential in plants, 40K had higher arithmetic means of activity concentrations and geometric means of TFs (geometric standard deviations in parentheses) of 610 +/- 260 Bq kg-1 dry weight (DW) and 2.0 (1.4), respectively, than 226Ra, which had the activity concentrations and TFs of 4.8 +/- 2.6 Bq kg-1 DW and 0.17 (1.8), respectively. The results also showed that the leaves of medicinal plants had higher activity concentrations and TFs than root and flower parts, probably due to higher metabolic activities in leaves. Furthermore, there was good agreement between the results from the current work and other similar reports on medicinal plants. The information obtained from this work could strengthen knowledge of natural radionuclides in plants and particularly increase available TF data on Thai medicinal plants. PMID- 29331558 TI - High-resolution 129I bomb peak profile in an ice core from SE-Dome site, Greenland. AB - 129I in natural archives, such as ice cores, can be used as a proxy for human nuclear activities, age marker, and environmental tracer. Currently, there is only one published record of 129I in ice core (i.e., from Fiescherhorn Glacier, Swiss Alps) and its limited time resolution (1-2 years) prevents the full use of 129I for the mentioned applications. Here we show 129I concentrations in an ice core from SE-Dome, Greenland, covering years 1956-1976 at a time resolution of ~6 months, the most detailed record to date. Results revealed 129I bomb peaks in years 1959, 1962, and 1963, associated to tests performed by the former Soviet Union, one year prior, in its Novaya Zemlya test site. All 129I bomb peaks were observed in winter (1958.9, 1962.1, and 1963.0), while tritium bomb peaks, another prominent radionuclide associated with nuclear bomb testing, were observed in spring or summer (1959.3, and 1963.6; Iizuka et al., 2017). These results indicate that 129I bomb peaks can be used as annual and seasonal age markers for these years. Furthermore, we found that 129I recorded nuclear fuel reprocessing signals and that these can be potentially used to correct timing of estimated 129I releases during years 1964-1976. Comparisons with other published records of 129I in natural archives showed that 129I can be used as common age marker and tracer for different types of records. Most notably, the 1963 129I bomb peak can be used as common age marker for ice and coral cores, providing the means to reconcile age models and associated trends from the polar and tropical regions, respectively. PMID- 29331559 TI - Experience of on-site disposal of production uranium-graphite nuclear reactor. AB - The paper reported the experience gained in the course of decommissioning EI-2 Production Uranium-Graphite Nuclear Reactor. EI-2 was a production Uranium Graphite Nuclear Reactor located on the Production and Demonstration Center for Uranium-Graphite Reactors JSC (PDC UGR JSC) site of Seversk City, Tomsk Region, Russia. EI-2 commenced its operation in 1958, and was shut down on December 28, 1990, having operated for the period of 33 years all together. The extra pure grade graphite for the moderator, water for the coolant, and uranium metal for the fuel were used in the reactor. During the operation nitrogen gas was passed through the graphite stack of the reactor. In the process of decommissioning the PDC UGR JSC site the cavities in the reactor space were filled with clay-based materials. A specific composite barrier material based on clays and minerals of Siberian Region was developed for the purpose. Numerical modeling demonstrated the developed clay composite would make efficient geological barriers preventing release of radionuclides into the environment. PMID- 29331560 TI - The effects of sediment transport on temporal variation in radiocesium concentrations in very shallow water off the southern coast of Fukushima, Japan. AB - We studied the very shallow coastal water off Iwaki City, Fukushima Prefecture, and investigated: (1) temporal variation in 137Cs concentrations; (2) particle size distribution of sediments; and (3) the effect on variation by waves, component-fractionated concentration of radiocesium and mineral composition at three sampling stations (Yotsukura, Ena rocky reef and Ena sandy station). There was a decline in 137Cs concentrations in sediment samples at all sampling stations between 425 and 1173 days after the accident. All stations had fluctuations in 137Cs concentrations between 425 and 800 days. At Ena sandy station and Ena rocky reef stations the declines in 137Cs concentrations slowed from about 800 days after the accident. Fluctuations in particle median diameters were seen, as well as in 137Cs concentrations. At Yotsukura, where the fluctuation in median diameter was small, a constant decrease in 137Cs concentrations was observed. We considered that bioturbation may contribute the constant decrease. At Ena sandy station, where the fluctuation of the median diameter was large, the fluctuation in 137Cs concentrations was also large. The movement of sediments was evaluated by the Shields parameter, and results indicated that at any station where the sediment was moved more frequently, the fluctuation in 137Cs concentrations was also large. The highly contaminated small particles moved from our stations due to wave action between 425 and 800 days after the accident. The remaining relatively large particles might contribute to the slowing down in reduction of 137Cs concentrations from 800 days after the accident. However, the 137Cs concentrations in sediments in very shallow water off the southern coast of Fukushima may continue to decline over time. PMID- 29331561 TI - Long-term outcome of neurological Wilson's disease. AB - INTRODUCTION: Aim of the study was to characterize the clinical spectrum of long term treated patients with Wilson's disease (WD) and to identify risk factors influencing long-term outcome. METHODS: In a cross-sectional study 30 WD-patients being treated for at least 2.5 and up to 31 years underwent a detailed clinical investigation, scoring of clinical findings yielding 7 motor and 3 non-motor subscores as well as laboratory testing. A factor analysis of these subscores and laboratory parameters was performed to detect those items with the highest influence on outcome, an ANOVA and subgroup analysis tested the influence of age, age at onset of diagnosis and duration of treatment on outcome. A correlation analysis was performed between clinical subscores and laboratory findings. RESULTS: Three factors (F1-F3) characterized the clinical outcome (F1: tremor and pathological reflexes; F2: dystonia and dysarthria; F3: cerebellar abnormalities and gait), and three factors the laboratory findings (LF1: serum level of ceruloplasmin; LF2: liver enzymes; LF3: INR). Mildly affected patients had an elevated 24 h urinary copper excretion, more affected patients presented with elevated liver enzymes. Six of the 7 motor subscores did not change with duration of treatment, whereas tremor (p < .04), the total score (p < .02) and especially the non-motor items (p < .001) significantly increased with duration of treatment. The outcome of patients with neuropsychiatric abnormalities was significantly worse (p < .01) compared to the rest of the patients. CONCLUSIONS: Long-term outcome in WD is influenced by patient's compliance and neurological comorbidity. PMID- 29331562 TI - NADPH oxidases 2 activation in patients with Parkinson's disease. PMID- 29331563 TI - Trends in Premature Mortality Due to Heart Failure by Autonomous Community in Spain: 1999 to 2013. AB - INTRODUCTION AND OBJECTIVES: Heart failure (HF) is a major public health problem, and the prevalence increases with age. In Spain, there are considerable differences between autonomous communities. The aim of this study was to analyze trends in premature mortality due to HF between 1999 and 2013 in Spain by autonomous community. METHODS: We analyzed data on mortality due to HF in Spanish residents aged 0 to 75 years by autonomous community between 1999 and 2013. Data were collected from files provided by the Spanish Statistics Office. Age-adjusted mortality rates were analyzed and the average annual percentage rate was estimated by Poisson models. RESULTS: Mortality due to HF represented 10.9% of total mortality. In 2013, the national age-adjusted rate was 2.98 deaths in men and 1.29 deaths in women per 100 000 inhabitants, with an annual mean reduction of 2.27% and 4.53%, respectively. In men, average mortality showed the greatest reduction in Castile-La-Mancha (6.30%). In Cantabria, average mortality significantly increased (3.97%). In women, average mortality showed the greatest decrease in the Chartered Community of Navarre (15.17%). CONCLUSIONS: During the study period, mortality due to HF showed an overall average decrease, both nationally and by autonomous community. This decrease was more pronounced in women than in men. Premature mortality significantly decreased in most-but not all-autonomous communities. PMID- 29331564 TI - Direct renin inhibition is not enough to prevent reactive oxygen species generation and vascular dysfunction in renovascular hypertension. AB - Renin-angiotensin system activation promotes oxidative stress and endothelial dysfunction. However, no previous study has examined the effects of the renin inhibitor aliskiren, either alone or combined with angiotensin II type 1 antagonists on alterations induced by two-kidney, one-clip (2K1C) hypertension. We compared the vascular effects of aliskiren (50mg/kg/day), losartan (10mg/kg/day), or both by gavage for 4 weeks in 2K1C and control rats. Treatment with losartan, aliskiren, or both exerted similar antihypertensive effects. Aliskiren lowered plasma Ang I concentrations in sham rats and in hypertensive rats treated with aliskiren or with both drugs. Aliskiren alone or combined with losartan decreased plasma angiotensin II concentrations measured by high performance liquid chromatography, whereas losartan alone had no effects. In contrast, losartan alone or combined with aliskiren abolished hypertension induced increases in aortic angiotensin II concentrations, whereas aliskiren alone exerted no such effects. While hypertension enhanced aortic oxidative stress assessed by dihydroethidium fluorescence and by lucigenin chemiluminescence, losartan alone or combined with aliskiren, but not aliskiren alone, abolished this alteration. Hypertension impaired aortic relaxation induced by acetylcholine, and losartan alone or combined with aliskiren, but not aliskiren alone, reversed this alteration. Losartan alone or combined with aliskiren, but not aliskiren alone, increased plasma nitrite concentrations in 2K1C rats. These findings show that antihypertensive effects of aliskiren do not prevent hypertension-induced vascular oxidative stress and endothelial dysfunction. These findings contrast those found with losartan and suggest that renin inhibition is not enough to prevent hypertension-induced impaired redox biology and vascular dysfunction. PMID- 29331565 TI - Saroglitazar reduces obesity and associated inflammatory consequences in murine adipose tissue. AB - Prevailing knowledge links chronic low-grade inflammation in the adipose tissue to obesity and its associated metabolic complications. In this study, we evaluated immunometabolic effects of a recently launched dual peroxisome proliferator-activated receptor (PPAR) alpha & gamma agonist 'Saroglitazar' in a mouse model of diet-induced obesity (DIO). Body composition analysis revealed that saroglitazar treatment promoted hepatic weight gain, while attenuated epididymal white adipose tissue (eWAT) mass in DIO. In the eWAT of saroglitazar treated mice, histological analysis showed reduced adipocyte hypertrophy and matrix deposition (picrosirius red staining). Immunological profiling of stromal vascular fraction isolated from eWAT showed decreased pro-inflammatory cells (M1 macrophages, CD4 and CD8 T-cells) and increased anti-inflammatory M2 macrophages. Gene expression and western blot analysis suggested that saroglitazar promoted energy expenditure machinery and attenuated inflammatory as well as fibrotic markers in eWAT during DIO. In conclusion, for the first time we are reporting immunometabolic effects of dual PPARalpha & gamma agonist saroglitazar in DIO and insulin resistance (IR). Saroglitazar exerted its beneficial effects on adipose tissue by limiting, diet-induced adipose tissue dysfunction, adipocyte hypertrophy, adipocyte cell damage and extracellular matrix deposition in obesity. PMID- 29331566 TI - Editorial Comment. PMID- 29331567 TI - Author Reply. PMID- 29331569 TI - Salinivibrio kushneri sp. nov., a moderately halophilic bacterium isolated from salterns. AB - Ten Gram-strain-negative, facultatively anaerobic, moderately halophilic bacterial strains, designated AL184T, IB560, IB563, IC202, IC317, MA421, ML277, ML318, ML328A and ML331, were isolated from water ponds of five salterns located in Spain. The cells were motile, curved rods and oxidase and catalase positive. All of them grew optimally at 37 degrees C, at pH 7.2-7.4 and in the presence of 7.5% (w/v) NaCl. Based on phylogenetic analyses of the 16S rRNA, the isolates were most closely related to Salinivibrio sharmensis BAGT (99.6-98.2% 16S rRNA gene sequence similarity) and Salinivibrio costicola subsp. costicola ATCC 35508T (99.0-98.1%). According to the MLSA analyses based on four (gyrB, recA, rpoA and rpoD) and eight (ftsZ, gapA, gyrB, mreB, pyrH, recA, rpoA and topA) concatenated gene sequences, the most closely relatives were S. siamensis JCM 14472T (96.8 95.4% and 94.9-94.7%, respectively) and S. sharmensis DSM 18182T (94.0-92.6% and 92.9-92.7%, respectively). In silico DNA-DNA hybridization (GGDC) and average nucleotide identity (ANI) showed values of 23.3-44.8% and 80.2-91.8%, respectively with the related species demonstrating that the ten isolates constituted a single novel species of the genus Salinivibrio. Its pangenome and core genome consist of 6041 and 1230 genes, respectively. The phylogeny based on the concatenated orthologous core genes revealed that the ten strains form a coherent phylogroup well separated from the rest of the species of the genus Salinivibrio. The major cellular fatty acids of strain AL184T were C16:0 and C18:1. The DNA G+C content range was 51.9-52.5mol% (Tm) and 50.2-50.9mol% (genome). Based on the phylogenetic-phylogenomic, phenotypic and chemotaxonomic data, the ten isolates represent a novel species of the genus Salinivibrio, for which the name Salinivibrio kushneri sp. nov. is proposed. The type strain is AL184T (=CECT 9177T=LMG 29817T). PMID- 29331568 TI - Overall survival and oncological outcomes after partial nephrectomy and radical nephrectomy for cT2a renal tumors: A collaborative international study from the French kidney cancer research network UroCCR. AB - BACKGROUND: Partial nephrectomy (PN) is recommended as first-line treatment for cT1 stage kidney tumors because of a better renal function and probably a better overall survival than radical nephrectomy (RN). For larger tumors, PN has a controversial position due to lack of evidence showing good cancer control. The aim of this study was to compare the results of PN and RN in cT2a stage on overall survival and oncological results. METHOD: A retrospective international multicenter study was conducted in the frame of the French kidney cancer research network (UroCCR). We considered all patients aged>=18 years who underwent surgical treatment for localized renal cell carcinoma (RCC) stage cT2a (7.1-10cm) between 2000 and 2014. Cox and Fine-Gray models were performed to analyze overall survival (OS), cancer specific survival (CSS) and cancer-free survival (CFS). Comparison between PN and RN was realized after an adjustment by propensity score considering predefined confounding factors: age, sex, tumor size, pT stage of the TNM classification, histological type, ISUP grade, ASA score. RESULTS: A total of 267 patients were included. OS at 3 and 5 years was 93.6% and 78.7% after PN and 88.0% and 76.2% after RN, respectively. CSS at 3 and 5 years was 95.4% and 80.2% after PN and 91.0% and 85.0% after RN. No significant difference between groups was found after propensity score adjustment for OS (HR 0.87, 95% CI: 0.37-2.05, P=0.75), CSS (HR 0.52, 95% CI: 0.18-1.54, P=0.24) and CFS (HR 1.02, 95% CI: 0.50 2.09, P=0.96). CONCLUSION: PN seems equivalent to RN for OS, CSS and CFS in cT2a stage kidney tumors. The risk of recurrence is probably more related to prognostic factors than the surgical technique. The decision to perform a PN should depend on technical feasibility rather than tumor size, both to imperative and elective situation. LEVEL OF EVIDENCE: 4. PMID- 29331570 TI - Meningeal marginal zone B-cell lymphoma: The meningioma trap. AB - OBJECTIVE: To report a case of marginal zone MALT lymphoma of the temporal dura mater, initially mistaken for temporal meningioma. CASE REPORT: A 60-year-old immunocompetent woman, followed for more than 10 years for temporal meningioma causing vertigo and mixed hearing loss, presented with cervical lymphadenopathy, revealing marked progression of an intracranial lesion, leading to a diagnosis of marginal zone MALT lymphoma based on histological examination of a cervical lymph node. Treatment with 6 cycles of rituximab and bendamustine allowed complete remission of cervical lymph node and intracranial lesions, confirming the diagnosis of temporal dural mater lymphoma. CONCLUSION: Primary dural lymphoma must be part of the differential diagnosis of meningioma. Long-term follow-up allows correction of the diagnosis. PMID- 29331571 TI - Interdepartmental imaging protocol for clinically based three-dimensional computed tomography can provide accurate measurement of glenoid version. AB - BACKGROUND: Conventional computed tomography (CT) is not accurate for glenoid version measurement. This study sought to examine the feasibility of an interdepartmental protocol implemented between orthopedic surgery and radiology departments for acquisition of anatomic axial CT images and to validate the glenoid version measured through such a protocol. MATERIALS AND METHODS: Data of 30 conventional CT scans of 10 normal and 20 osteoarthritic glenoids were transferred to clinical 3-dimensional imaging software by a radiology technician trained for the study. The technician independently reoriented the scapulae to generate anatomic CT images. A separate team of orthopedic researchers used laboratory-based 3-dimensional reconstruction software (Mimics; Materialise, Leuven, Belgium) to generate anatomic axial images. Three independent examiners measured glenoid version on the conventional CT, reoriented anatomic CT, and Mimics images at the superior, middle, and inferior levels. Data were analyzed using the Mimics data as the "gold standard." RESULTS: Reoriented anatomic CT images generated by the technician resulted in almost identical version measurements to the Mimics images in both normal and arthritic glenoids. The conventional CT images had poor agreement with the Mimics images in normal glenoids but had good agreement in arthritic glenoids. Both normal and arthritic glenoids had increased retroversion superiorly (P < .05), and this phenomenon was significantly exaggerated on the conventional CT images (P < .05). CONCLUSIONS: This study demonstrated that an interdepartmental protocol can produce reoriented anatomic axial CT images on which true glenoid version can be accurately measured. Such an institutional protocol would help surgeons accurately evaluate glenoid version preoperatively with reduced workload and expense. PMID- 29331572 TI - Comments on "Low-dose-rate prostate brachytherapy: 4-8 week postimplant prostate specific antigen a novel predictor of biochemical failure-free survival". PMID- 29331573 TI - Deformable image registration-based contour propagation yields clinically acceptable plans for MRI-based cervical cancer brachytherapy planning. AB - PURPOSE: To study the dosimetric impact of deformable image registration-based contour propagation on MRI-based cervical cancer brachytherapy planning. METHODS AND MATERIALS: High-risk clinical target volume (HRCTV) and organ-at-risk (OAR) contours were delineated on MR images of 10 patients who underwent ring and tandem brachytherapy. A second set of contours were propagated using a commercially available deformable registration algorithm. "Manual-contour" and "propagated-contour" plans were optimized to achieve a maximum dose to the most minimally exposed 90% of the volume (D90) (%) of 6 Gy/fraction, respecting minimum dose to the most exposed 2cc of the volume (D2cc) OAR constraints of 5.25 Gy and 4.2 Gy/fraction for bladder and rectum/sigmoid (86.5 and 73.4 Gy equivalent dose in 2 Gy fractions [EQD2] for external beam radiotherapy [EBRT] + brachytherapy, respectively). Plans were compared using geometric and dosimetric (total dose [EQD2] EBRT + brachytherapy) parameters. RESULTS: The differences between the manual- and propagated-contour plans with respect to the HRCTV D90 and bladder, rectum, and sigmoid D2cc were not statistically significant (per fraction basis). For the EBRT + brachytherapy course, the D2cc delivered to the manually contoured OARs by the propagated-contour plans ranging 98-107%, 95-105%, and 92-108% of the dose delivered by the manual-contour plans (max 90.4, 70.3, and 75.4 Gy for the bladder, rectum, and sigmoid, respectively). The HRCTV dose in the propagated-contour plans was 97-103% of the dose in the manual-contour plans (maximum difference 2.92 Gy). Increased bladder filling resulted in increased bladder dose in manual- and propagated-contour plans. CONCLUSIONS: When deformable image registration-propagated contours are used for cervical brachytherapy planning, the HRCTV dose is similar to the dose delivered by manual contour plans and the doses delivered to the OARs are clinically acceptable, suggesting that our algorithm can replace manual contouring for appropriately selected cases that lack major interfractional anatomical changes. PMID- 29331574 TI - A Medicare cost analysis of MRI- versus CT-based high-dose-rate brachytherapy of the cervix: Can MRI-based planning be less costly? AB - PURPOSE: While some institutions deliver multiple fractions per implant for MRI based planning, it is common for only one fraction to be delivered per implant with CT-based cervical brachytherapy. The purpose of this study was to compare physician costs, hospital costs, and overall costs for cervical cancer patients treated with either CT-based or MRI-based high-dose-rate (HDR) cervical brachytherapy to determine if MRI-based brachytherapy as described can be financially feasible. METHODS AND MATERIALS: We identified 40 consecutive patients treated with curative intent cervical brachytherapy. Twenty patients underwent CT-based HDR brachytherapy with five fractions delivered in five implants on nonconsecutive days in an outpatient setting with the first implant placed with a Smit sleeve under general anesthesia. Twenty patients received MRI based HDR brachytherapy with four fractions delivered in two implants, each with MRI-based planning, performed 1-2 weeks apart with an overnight hospital admission for each implant. We used Medicare reimbursements to assess physician costs, hospital costs, and overall cost. RESULTS: The median cost of MRI-based brachytherapy was $14,248.75 (interquartile range [IQR]: $13,421.32-$15,539.74), making it less costly than CT-based brachytherapy with conscious sedation (i.e., $18,278.85; IQR: $17,323.13-$19,863.03, p < 0.0001) and CT-based brachytherapy with deep sedation induced by an anesthesiologist (i.e., $27,673.44; IQR: $26,935.14-$29,511.16, p < 0.0001). CT-based brachytherapy with conscious sedation was more costly than CT-based brachytherapy with deep sedation (p < 0.001). CONCLUSIONS: MRI-based brachytherapy using the described treatment course was less costly than both methods of CT-based brachytherapy. Cost does not need to be a barrier for MRI-based cervical brachytherapy, especially when delivering multiple fractions with the same application. PMID- 29331575 TI - Validation of MRI to TRUS registration for high-dose-rate prostate brachytherapy. AB - PURPOSE: The objective of this study was to develop and validate an open-source module for MRI to transrectal ultrasound (TRUS) registration to support tumor targeted prostate brachytherapy. METHODS AND MATERIALS: In this study, 15 patients with prostate cancer lesions visible on multiparametric MRI were selected for the validation. T2-weighted images with 1-mm isotropic voxel size and diffusion weighted images were acquired on a 1.5T Siemens imager. Three dimensional (3D) TRUS images with 0.5-mm slice thickness were acquired. The investigated registration module was incorporated in the open-source 3D Slicer platform, which can compute rigid and deformable transformations. An extension of 3D Slicer, SlicerRT, allows import of and export to DICOM-RT formats. For validation, similarity indices, prostate volumes, and centroid positions were determined in addition to registration errors for common 3D points identified by an experienced radiation oncologist. RESULTS: The average time to compute the registration was 35 +/- 3 s. For the rigid and deformable registration, respectively, Dice similarity coefficients were 0.87 +/- 0.05 and 0.93 +/- 0.01 while the 95% Hausdorff distances were 4.2 +/- 1.0 and 2.2 +/- 0.3 mm. MRI volumes obtained after the rigid and deformable registration were not statistically different (p > 0.05) from reference TRUS volumes. For the rigid and deformable registration, respectively, 3D distance errors between reference and registered centroid positions were 2.1 +/- 1.0 and 0.4 +/- 0.1 mm while registration errors between common points were 3.5 +/- 3.2 and 2.3 +/- 1.1 mm. Deformable registration was found significantly better (p < 0.05) than rigid registration for all parameters. CONCLUSIONS: An open-source MRI to TRUS registration platform was validated for integration in the brachytherapy workflow. PMID- 29331576 TI - Normative distribution of substance P and its tachykinin neurokinin-1 receptor in the medullary serotonergic network of the human infant during postnatal development. AB - Substance P (SP) and its tachykinin NK1 receptor (NK1R) function within key medullary nuclei to regulate cardiorespiratory and autonomic control. We examined the normative distribution of SP and NK1R in the serotonergic (5 Hydroxytryptamine, [5-HT]) network of the human infant medulla during postnatal development, to provide a baseline to facilitate future analysis of the SP/NK1R system and its interaction with 5-HT within pediatric brainstem disorders in early life. [125I] labelled Bolton Hunter SP (BH-SP) tissue receptor autoradiography (n = 15), single label immunohistochemistry (IHC) and double label immunofluorescence (IF) (n = 10) were used to characterize the normative distribution profile of SP and NK1R in the 5-HT network of the human infant medulla during postnatal development. Tissue receptor autoradiography revealed extensive distribution of SP and NK1R in nuclei intimately related to cardiorespiratory function and autonomic control, with significant co distribution and co-localization with 5-HT in the medullary network in the normal human infant during development. A trend for NK1R binding to decrease with age was observed with significantly higher binding in premature and male infants. We provide further evidence to suggest a significant role for SP/NK1R in the early postnatal period in the modulation of medullary cardiorespiratory and autonomic control in conjunction with medullary 5-HT mediated pathways and provide a baseline for future analysis of the potential consequences of abnormalities in these brainstem neurotransmitter networks during development. PMID- 29331577 TI - A novel encystation specific protein kinase regulates chitin synthesis in Entamoeba invadens. AB - Phosphorylation is an important post-translational modification of proteins and is involved in the regulation of a variety of cellular events. The proteome of Entamoeba invadens, the reptilian counterpart of Entamoeba histolytica consists of an overwhelming number of putative protein kinases, and some may have a role to play in Entamoeba encystation. In this study, we have identified a novel protein kinase named as EiCSpk (Entamoeba invadenscyst specific protein kinase) which expressed almost exclusively during encystation. It is an active Protein kinase C with a characteristic substrate phosphorylation and auto-phosphorylation property. Gene silencing study has unveiled its role as a regulator of chitin synthesis through transcriptional activation of the chitin synthesis pathway genes along with glycogen phosphorylases that are involved in the influx of glucose from glycogen breakdown for chitin synthesis. PMID- 29331579 TI - Corrections. PMID- 29331578 TI - Molecular detection and characterisation of Babesia and Theileria in Australian hard ticks. AB - Babesia and Theileria are intraerythrocytic protozoans of the phylum Apicomplexa. These species are capable of infecting wild and domestic animals and have historically caused great economic loss in the agricultural industry. In recent years human babesiosis has been deemed an emerging zoonosis in North America, Europe and Asia. The first locally acquired case of babesiosis in Australia, caused by Babesia microti, was reported in March 2012. A number of native Babesia and Theileria species have been identified in Australian marsupials, however their associated tick vectors and threat to human health is unknown. In the present study DNA was extracted from 1154 ticks collected from across Australia. PCR was used to amplify a Babesia and Theileria-specific partial region of the 18S ribosomal RNA gene. Positive samples were sequenced and phylogenetic analysis was performed. Twenty-nine sequences were obtained from ticks belonging to the genera Ixodes, Haemaphysalis and Bothriocroton. The sequences were closely related to Babesia macropus, and Theileria recently identified in marsupials and monotremes. Bayesian inference and maximum likelihood methods showed that Australian Babesia and Theileria species form monophyletic groups. PMID- 29331580 TI - Local delivery of mometasone furoate from an eluting endotracheal tube. AB - Laryngeal and tracheal morbidity is a common complication of endotracheal tube (ETT)-based airway management, and manifests as local irritation, inflammation, and edema. Systemic corticosteroids are commonly administered to manage these conditions; however, their efficacy is inadequate and limited by potential severe side effects. In the present study, a steroid delivery system for local therapy was developed to generate relatively high local drug concentrations and to improve drug efficacy. ETTs were coated with electrospun poly (lactic-co-glycolic acid) (PLGA) nanofibers loaded with mometasone furoate (MF), creating a microscale thick layer. MF exhibited sustained release from coated ETTs over 14days in vitro. An in vivo efficacy study in rats demonstrated the therapeutic benefit of MF-coated ETTs over bare ETTs, as measured by reduced laryngeal mucosal thickness and submucosal laryngeal edema. The fiber coating remained intact during tube intubation and extubation, demonstrating good adhesion to the tubes even after 24h in aqueous solution at 37 degrees C. These findings demonstrate the potential of drug-loaded ETTs to revolutionize the standard of care for endotracheal intubation. PMID- 29331581 TI - Identification and characterization of arginine finger-like motifs, and endosome lysosome basolateral sorting signals within the Coxiella burnetii type IV secreted effector protein CirA. AB - Coxiella burnetii is an obligate intracellular pathogen that replicates in an endolysosome-like compartment termed the Coxiella-containing vacuole (CCV). Formation of this unique replicative niche requires delivery of bacterial effector proteins into the host cytosol where they mediate crucial interactions with the host. We previously identified an essential Dot/Icm effector, CirA that is required for intracellular replication and CCV formation. Furthermore, CirA was shown to stimulate the GTPase activity of RhoA in vitro. In the current study, we used a bioinformatics-guided approach and identified three arginine finger-like motifs, often found in Rho GTPase-activating proteins (GAPs) and endosome-lysosome basolateral sorting signals associated with vesicle trafficking. When expressed in mammalian cells, mutation of either endosome lysosome-basolateral sorting signals or the arginine finger-like motifs rescued stress phenotypes and decreased plasma membrane localization of ectopically expressed CirA. We further demonstrate that endosome-lysosome sorting signals are required for co-localization with Rab5 and Rab7. Collectively our data indicate that arginine finger-like motifs and endosome-lysosome-basolateral sorting signals within CirA are essential for interaction with the host cytoskeleton. PMID- 29331582 TI - Inositol polyphosphates contribute to cellular circadian rhythms: Implications for understanding lithium's molecular mechanism. AB - Most living organisms maintain cell autonomous circadian clocks that synchronize critical biological functions with daily environmental cycles. In mammals, the circadian clock is regulated by inputs from signaling pathways including glycogen synthase kinase 3 (GSK3). The drug lithium has actions on GSK3, and also on inositol metabolism. While it is suspected that lithium's inhibition of GSK3 causes rhythm changes, it is not known if inositol polyphosphates can also affect the circadian clock. We examined whether the signaling molecule inositol hexaphosphate (IP6) has effects on circadian rhythms. Using a bioluminescent reporter (Per2::luc) to measure circadian rhythms, we determined that IP6 increased rhythm amplitude and shortened period in NIH3T3 cells. The IP6 effect on amplitude was attenuated by selective siRNA knockdown of GSK3B and pharmacological blockade of AKT kinase. However, unlike lithium, IP6 did not induce serine-9 phosphorylation of GSK3B. The synthesis of IP6 involves the enzymes inositol polyphosphate multikinase (IPMK) and inositol pentakisphosphate 2-kinase (IPPK). Knockdown of Ippk had effects opposite to those of IP6, decreasing rhythm amplitude and lengthening period. Ipmk knockdown had few effects on rhythm alone, but attenuated the effects of lithium on rhythms. However, lithium did not change the intracellular content of IP6 in NIH3T3 cells or neurons. Pharmacological inhibition of the IP6 kinases (IP6K) increased rhythm amplitude and shortened period, suggesting secondary effects of inositol pyrophosphates may underlie the period shortening effect, but not the amplitude increasing effect of IP6. Overall, we conclude that inositol phosphates, in particular IP6 have effects on circadian rhythms. Manipulations affecting IP6 and related inositol phosphates may offer a novel means through which circadian rhythms can be regulated. PMID- 29331583 TI - Importins alpha and beta signaling mediates endothelial cell inflammation and barrier disruption. AB - Nucleocytoplasmic shuttling via importins is central to the function of eukaryotic cells and an integral part of the processes that lead to many human diseases. In this study, we addressed the role of alpha and beta importins in the mechanism of endothelial cell (EC) inflammation and permeability, important pathogenic features of many inflammatory diseases such as acute lung injury and atherosclerosis. RNAi-mediated knockdown of importin alpha4 or alpha3 each inhibited NF-kappaB activation, proinflammatory gene (ICAM-1, VCAM-1, and IL-6) expression, and thereby endothelial adhesivity towards HL-60 cells, upon thrombin challenge. The inhibitory effect of alpha4 and alpha3 knockdown was associated with impaired nuclear import and consequently, DNA binding of RelA/p65 subunit of NF-kappaB and occurred independently of IkappaBalpha degradation. Intriguingly, knockdown of importins alpha4 and alpha3 also inhibited thrombin-induced RelA/p65 phosphorylation at Ser536, showing a novel role of alpha importins in regulating transcriptional activity of RelA/p65. Similarly, knockdown of importin beta1, but not beta2, blocked thrombin-induced activation of RelA/p65 and its target genes. In parallel studies, TNFalpha-mediated inflammatory responses in EC were refractory to knockdown of importins alpha4, alpha3 or beta1, indicating a stimulus-specific regulation of RelA/p65 and EC inflammation by these importins. Importantly, alpha4, alpha3, or beta1 knockdown also protected against thrombin induced EC barrier disruption by inhibiting the loss of VE-cadherin at adherens junctions and by regulating actin cytoskeletal rearrangement. These results identify alpha4, alpha3 and beta1 as critical mediators of EC inflammation and permeability associated with intravascular coagulation. PMID- 29331585 TI - Cathepsin L promotes ionizing radiation-induced U251 glioma cell migration and invasion through regulating the GSK-3beta/CUX1 pathway. AB - Cathepsin L (CTSL) is a lysosomal cysteine protease overexpressed and secreted by tumor cells. Our previous study found that CTSL was involved in ionizing radiation (IR)-induced epithelial-mesenchymal transition (EMT) and the increase of glioma invasion and migration. However, the mechanisms by which CTSL promoted this IR-induced glioma migration and invasion remained unclear. In this study, we demonstrated that IR reduced glycogen synthase kinase-3beta (GSK-3beta) activity, via the CTSL-mediated phosphorylation of its serine-9 residue, in U251 cells. Moreover, inhibition of p-GSK-3betaSer9 in overexpressing CTSL cells attenuated EMT and decreased the expression of snail, an EMT-related transcription factor. As a result, U251 cell migration and invasion was inhibited compared to over-CTSL cells. Alternatively, when CTSL was activated by IR or exogenously overexpressed, CTSL promoted EMT by processing homeobox protein cut-like1 (CUX1) to produce the physiologically active p110 isoform. In brief, this study revealed that IR induced EMT as well as migration and invasion of glioma cells are mediated by CTSL through the Akt/GSK-3beta/snail and CUX1 pathways. Consequently, this research also led to the identification of a potential novel target for therapeutic intervention of glioma. PMID- 29331586 TI - Positive effects of total recovery period on anti- and pro-inflammatory cytokines are not linked to performance re-establishment in overtrained mice. AB - The association between excessive training sessions (i.e., overtraining/OT) and periods of inadequate recovery is linked to the nonfunctional overreaching (NFOR) state, which is defined as an unexplained decrement or stagnation of performance. The cytokine hypothesis of OT considers that pro-inflammatory cytokines are responsible by the NFOR state-induced performance decrement. Investigations using rodent models of OT verified increased levels of pro-inflammatory cytokines in hypothalamus, liver, serum and skeletal muscle samples. Recently, our research group observed that a 2-week total recovery period was not able to re-establish the NFOR state-induced performance decrement. As the responses of anti- and pro inflammatory cytokines were not measured, we aimed to investigate the effects of 2-week total recovery period on the protein contents of IL-1beta, IL-6, IL-10, IL 15, TNF-alpha and SOCS-3 in serum and skeletal muscle samples of overtrained mice. Also, a bioinformatics analysis was performed to investigate the correlations of IL-1beta, IL-6, IL-10, IL-15, TNF-alpha and SOCS-3 in skeletal muscle with locomotor activity. In summary, the 2-week total recovery period upregulated the anti-inflammatory cytokines and normalized the pro-inflammatory cytokines without a concomitant re-establishment of performance. PMID- 29331587 TI - IL-23/IL-17 immune axis in Guillain Barre Syndrome: Exploring newer vistas for understanding pathobiology and therapeutic implications. AB - Guillain Barre Syndrome (GBS) is a severe disorder of the peripheral nervous system with an inadequately known etiopathology. It is a post infectious immune mediated disorder, characterized by autoantibody production, complement activation as well as T reactivity against gangliosides. However, the precise etiopathogenesis remains poorly understood in a majority of the patients. Th17 cells, a recently identified lineage of Th cells have emerged as a predominant inducer of autoimmunity and inflammation in various immunological disorders. Pathobiological role of Th17 pathway is also becoming increasingly apparent in the nervous system disorders. Two cytokines, such as IL-23, known to determine the pathogenic potential of Th17 cells and IL-17, a prototype effector cytokine of Th17 pathway can form IL-23/IL-17 immune axis. Aberrant functioning of this immune axis has been implicated in many autoimmune diseases. Therapeutic strategies that potentially target this immune axis have shown encouraging results in diseases with immunological underpinnings. Preliminary data obtained both from animal and clinical studies indicate a possible role of this immune axis in GBS. Herein, we explore and highlight the relevance and functional implications of IL-23/IL-17 immune axis in GBS. Understanding this immune axis may shed important insights into the etiology and treatment of GBS. PMID- 29331588 TI - Antagonism of cysteinyl leukotriene receptor 1 (cysLTR1) by montelukast suppresses cell senescence of chondrocytes. AB - Aging is closely associated with osteoarthritis (OA). Although its underlying mechanisms remain unknown, cellular senescence in chondrocytes has become an important therapeutic target for the treatment of OA. Cysteinyl leukotriene receptors (cysLTRs) mediate the pathobiological function of cysteinyl leukotrienes (cysLTs). However, the roles of cysLTRs in the pathogenesis of OA have not been reported before. In the current study, we found that cysLTR1 but not cysLTR2 is expressed in human primary chondrocytes. In addition, stimulation with tumor necrosis factor alpha (TNF-alpha) resulted in a significant increase in the expression of cysLTR1. Interestingly, montelukast, a specific cysLTR1 antagonist, attenuated TNF-alpha-induced up-regulation of the activity of senescence-associated beta-galactosidase (SA-beta-Gal). In addition, TNF-alpha led to cell cycle arrest at the G0/G1 phase, which was prevented by treatment with montelukast. Notably, montelukast reduced expression of the senescence markers p53, p21 and PAI-1. In addition, montelukast ameliorated TNF-alpha induced K382 acetylation of p53 by promoting the expression of SIRT1. Silencing of SIRT1 using SIRT1 siRNA broke the inhibitory effects of montelukast on K382 acetylation of p53. Importantly, silencing of cysLTR1 reversed the reduction of SIRT1 expression as well as the K382 acetylation of p53. Our findings strongly implicate that cysLTR1 has the capacity to regulate cellular senescence in chondrocytes. It is suggested that montelukast may be a potential therapeutic agent for chondro-protective therapy. PMID- 29331584 TI - Protein neddylation and its alterations in human cancers for targeted therapy. AB - Neddylation, a post-translational modification that conjugates an ubiquitin-like protein NEDD8 to substrate proteins, is an important biochemical process that regulates protein function. The best-characterized substrates of neddylation are the cullin subunits of Cullin-RING ligases (CRLs), which, as the largest family of E3 ubiquitin ligases, control many important biological processes, including tumorigenesis, through promoting ubiquitylation and subsequent degradation of a variety of key regulatory proteins. Recently, increasing pieces of experimental evidence strongly indicate that the process of protein neddylation modification is elevated in multiple human cancers, providing sound rationale for its targeting as an attractive anticancer therapeutic strategy. Indeed, neddylation inactivation by MLN4924 (also known as pevonedistat), a small molecule inhibitor of E1 NEDD8-activating enzyme currently in phase I/II clinical trials, exerts significant anticancer effects by inducing cell cycle arrest, apoptosis, senescence and autophagy in a cell-type and context dependent manner. Here, we summarize the latest progresses in the field with a major focus on preclinical studies in validation of neddylation modification as a promising anticancer target. PMID- 29331589 TI - The iridocorneal endothelial syndrome. AB - The iridocorneal endothelial syndrome represents a unique group of ocular pathologies (Chandler syndrome, progressive iris atrophy, and Cogan-Reese syndrome) characterized by the proliferation of corneal endothelial cells that migrate toward the iridocorneal angle and iris surface causing, to a degree varying according to the subtype, corneal edema and decompensation and secondary glaucoma, whether by obstructing the angle or producing peripheral anterior synechiae by contraction of the basement membrane of the migrating cells over the surface of the iris. A triggering factor, possibly viral, induces the corneal endothelial cells to proliferate and behave like epithelial cells. Diagnosis is made based on typical ocular findings on the cornea and iris. Iridocorneal endothelial syndrome is more frequent in young women, with unilateral involvement in most cases. In vivo confocal microscopy is an excellent diagnostic tool, especially in borderline presentations like early cases of Chandler syndrome, which affects the cornea predominantly. Typical clinical management consists of treating the corneal edema and decompensation, where endothelial keratoplasty techniques have replaced in many cases the need for a penetrating keratoplasty and treating the secondary glaucoma, which usually requires surgical intervention. PMID- 29331590 TI - Setting mechanism of a new injectable Dicalcium Phosphate Dihydrate (DCPD) forming cement. AB - We previously described the gelation mechanism of calcium polyphosphate (CPP) in the presence of water. In this study, we developed novel and injectable poly dicalcium phosphate dihydrate (P-DCPD) forming cement by the reaction of acidic CPP gel with alkali tetracalcium phosphate (TTCP). The setting reaction mechanism of P-DCPD is due to the intermolecular interaction between CPP gel and TTCP that was supported by XRD, AFM, Raman spectra analysis and SEM. The setting mechanism of P-DCPD is completely different from the classical calcium phosphate cement (CPC) that achieves crystallization by monophosphates reaction. P-DCPD represents a new type of poly-CPCs with significant advantages, including strong mechanical strength, excellent cohesion and easy of handling. More extensive experiments are currently underway to further evaluate the performance of P-DCPD cements, including biocompatibility, degradation behavior and bone defect hearing efficacy, among others. PMID- 29331593 TI - Latent class analysis of the health of the nation outcome scales: A comparison of Swiss and English profiles and exploration of their predictive utility. PMID- 29331592 TI - Combined creatinine-cystatin C CKD-EPI equation significantly underestimates measured glomerular filtration rate in people with type 2 diabetes mellitus. AB - AIM: To evaluate the accuracy of creatinine and cystatin C (cysC) equations to estimate glomerular filtration rate (GFR) in type 2 diabetes mellitus (DM) patients and healthy adults. METHODS: Case-control study including 84 patients with type 2 DM and 100 healthy adults with measured GFR (mGFR)>=60mL/min/1.73m2. GFR was measured by 51Cr-EDTA and estimated (eGFR) by the following equations using creatinine, cysC or both markers: Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI), Caucasian Asian Pediatrics and Adults (CAPA), CKD-EPI creatinine-cystatin C (CKDEPI-CC), and CKD-EPI cystatin C (CKDEPIcysC). Agreement was evaluated by Bland & Altman analysis. RESULTS: Healthy individuals were 66% females, aged 38+/-14years; they presented mGFR 112+/-19mL/min/1.73m2 and eGFR by CKD-EPI, CKDEPI-CC, CKDEPIcysC and CAPA equations, respectively, 108+/-17, 102+/ 15, 97+/-16 and 93+/-16mL/min/1.73m2. DM group were 50% females, aged 59+/ 19years and presented mGFR 104+/-27 and eGFR 87+/-19, 80+/-18, 74+/-20 and 73+/ 18mL/min/1.73m2, respectively. All equations significantly underestimated mGFR, excepting creatinine-based CKD-EPI in the healthy group. The performance was considerably worse for GFRs above 120mL/min/1.73m2. CONCLUSION: In both healthy and type 2 DM patients, cystatin C-based equations, including the combined CKD EPI creatinine-cystatin equation, failed to improve the accuracy of GFR estimation, especially for normal and high normal GFR values. PMID- 29331591 TI - Brochosomins and other novel proteins from brochosomes of leafhoppers (Insecta, Hemiptera, Cicadellidae). AB - Brochosomes (BS) are secretory granules resembling buckyballs, produced intracellularly in specialized glandular segments of the Malpighian tubules and forming superhydrophobic coatings on the integuments of leafhoppers (Hemiptera, Cicadellidae). Their composition is poorly known. Using a combination of SDS PAGE, LC-MS/MS, next-generation sequencing (RNAseq) and bioinformatics we demonstrate that the major structural component of BS of the leafhopper Graphocephala fennahi Young is a novel family of 21-40-kDa secretory proteins, referred to herein as brochosomins (BSM), apparently cross-linked by disulfide bonds. At least 28 paralogous BSM were identified in a transcriptome assembly of this species, most of which were detected in BS. Multiple additional BS associated proteins (BSAP), possibly loosely attached to the outer and inner surfaces of BS, were also identified; some of these were glycine-, tyrosine- and proline-rich. BSM and BSAP together accounted for half of the 100 most expressed transcripts in the Malpighian tubules of G. fennahi. Except for several minor BSAP possibly related to cyclases, BSM and BSAP had no homologs among known proteins, thus representing taxonomically restricted gene families (orphans). Searching in 50 whole-body transcriptome assemblies of Hemiptera found homologs of BSM in representatives of all five families of the superfamily Membracoidea (Cicadellidae, Myerslopiidae, Aetalionidae, Membracidae, and Melizoderidae), but not in other lineages. Among the identified proteins only BSM were shared in common between all 17 surveyed leafhoppers known to produce BS. Combined CHN elemental and aminoacid analyses estimated the total protein content of BS from the integument of G. fennahi to be 60-70%. PMID- 29331594 TI - Effects of physical activity on the symptoms of Tourette syndrome: A systematic review. AB - There is irrefutable evidence that routine physical activity or exercise can offer considerable health benefits to individuals living with various mental disorders. However, it is not clear what effect physical activity has on the symptoms of Tourette syndrome. Despite a paucity of evidence, physical activity or exercise has already been recommended by various health organizations for the management of tics. We provide a systematic review of the effects of physical activity or exercise on tic symptomology in individuals with Tourette syndrome. Major electronic databases were searched for all available publications before August 2017. Keywords and MeSH terms included "physical activity" or "exercise" or "exercise therapy" or "physical exertion" or "sports" and "tics" or "tic disorders" or "Tourette." Eight studies were included, the majority of which were case reports. Despite a number of methodological limitations of the included studies, the review points to a trend that the effects of acute physical activity are intensity-dependent, where light intensity may alleviate and vigorous intensity may exacerbate tics. Chronic physical activity, however, appears to reduce the severity of tics even at higher intensity. Several physiological mechanisms may explain the differential effects of acute and chronic physical activity in Tourette syndrome. Future randomized controlled studies should better characterize the effects of different intensities and types of physical activity in Tourette syndrome. PMID- 29331595 TI - The interaction between neurocognitive functioning, subthreshold psychotic symptoms and pharmacotherapy in 22q11.2 deletion syndrome: A longitudinal comparative study. AB - BACKGROUND: The 22q11.2 deletion syndrome (22q11DS) is the most common genetic syndrome associated with schizophrenia. The goal of this study was to evaluate longitudinally the interaction between neurocognitive functioning, the presence of subthreshold psychotic symptoms (SPS) and conversion to psychosis in individuals with 22q11DS. In addition, we attempted to identify the specific neurocognitive domains that predict the longitudinal evolution of positive and negative SPS, as well as the effect of psychiatric medications on 22q11DS psychiatric and cognitive developmental trajectories. METHODS: Forty-four participants with 22q11DS, 19 with Williams syndrome (WS) and 30 typically developing (TD) controls, age range 12-35years, were assessed at two time points (15.2+/-2.1months apart). Evaluation included the Structured Interview for Prodromal Symptoms (SIPS), structured psychiatric evaluation and the Penn Computerized Neurocognitive Battery (CNB). RESULTS: 22q11DS individuals with SPS had a yearly conversion rate to psychotic disorders of 8.8%, compared to none in both WS and TD controls. Baseline levels of negative SPS were associated with global neurocognitive performance (GNP), executive function and social cognition deficits, in individuals with 22q11DS, but not in WS. Deficits in GNP predicted negative SPS in 22q11DS and the emergence or persistence of negative SPS. 22q11DS individuals treated with psychiatric medications showed significant improvement in GNP score between baseline and follow-up assessments, an improvement that was not seen in untreated 22q11DS. CONCLUSIONS: Our results highlight the time dependent interplay among positive and negative SPS symptoms, neurocognition and pharmacotherapy in the prediction of the evolution of psychosis in 22q11DS. PMID- 29331596 TI - Problem-solving therapy for adult depression: An updated meta-analysis. AB - BACKGROUND: Problem-solving therapy (PST) is one of the best examined types of psychotherapy for adult depression. No recent meta-analysis has examined the effects of PST compared to control groups or to other treatments. We wanted to verify whether PST is effective, whether effects are comparable to those of other treatments, and whether we could identify the possible sources of high heterogeneity that was found in earlier meta-analyses. METHODS: We conducted systematic searches in bibliographical databases, including PubMed, PsycInfo, Embase and the Cochrane database of randomized trials. RESULTS: We included 30 randomized controlled trials on PST (with 3530 patients), in which PST was compared to control conditions, with other therapies, and with pharmacotherapy. We could compare these 30 trials on PST also with 259 trials on other psychotherapies for adult depression. The effect size of PST versus control groups was g=0.79 (0.57-1.01) with very high heterogeneity (I2=84; 95% CI: 77 88). The effect size from the 9 studies with low risk of bias was g=0.34 (95% CI: 0.22-0.46) with low heterogeneity (I2=32; 95% CI: 0-68), which is comparable to the effects of other psychotherapies. PST was a little more effective than other therapies in direct comparisons, but that may be explained by the considerable number of studies with researcher allegiance towards PST. In meta-regression analyses of all controlled studies, no significant difference between PST and other therapies was found. CONCLUSION: PST is probably an effective treatment for depression, with effect sizes that are small, but comparable to those found for other psychological treatments of depression. PMID- 29331597 TI - Variation of genes involved in oxidative and nitrosative stresses in depression. AB - The dominating hypothesis among numerous hypotheses explaining the pathogenesis of depressive disorders (DD) is the one involving oxidative and nitrosative stress. In this study, we examined the association between single-nucleotide polymorphisms of the genes encoding SOD2 (superoxide dismutase 2), CAT (catalase), GPx4 (glutathione peroxidase 4), NOS1 (nitric oxide synthase 1), NOS2 (nitric oxide synthase 2), and the development of depressive disorders. Our study was carried out on the DNA isolated from peripheral blood collected from 281 depressed patients and 229 controls. Using TaqMan probes, we genotyped the following six polymorphisms: c.47T>C (p.Val16Ala) (rs4880) in SOD2, c.-89A>T (rs7943316) in CAT, c.660T>C (rs713041) in GPx4, c.-420-34221G>A (rs1879417) in NOS1, c.1823C>T (p.Ser608Leu) (rs2297518), and c.-227G>C (rs10459953) in NOS2. We found that the T/T genotype of the c.47T>C polymorphism was linked with an increased risk of depression. Moreover, the T/T genotype and T allele of c.660T>C increased the risk of DD occurrence, while the heterozygote and C allele decreased this risk. On the other hand, we discovered that the A/A genotype of c. 89A>T SNP was associated with a reduced risk of DD, while the A/T genotype increased this risk. We did not find any correlation between the genotypes/alleles of c.-420-34221G>A, c.1823C>T, and c.-227G>C, and the occurrence of DD. In addition, gene-gene and haplotype analyses revealed that combined genotypes and haplotypes were connected with the disease. Moreover, we found that sex influenced the impact of some SNPs on the risk of depression. Concluding, the studied polymorphisms of SOD2, CAT and GPx4 may modulate the risk of depression. These results support the hypothesis that oxidative and nitrosative stresses are involved in the pathogenesis of depressive disorders. PMID- 29331598 TI - Commentary on "Motor system dysfunction in the schizophrenia diathesis: Neural systems to neurotransmitters". PMID- 29331599 TI - Long-term reduction of seclusion and forced medication on a hospital-wide level: Implementation of an open-door policy over 6 years. AB - BACKGROUND: Psychiatric inpatient treatment is increasingly performed in settings with locked doors. However, locked wards have well-known disadvantages and are ethically problematic. In addition, recent data challenges the hypothesis that locked wards provide improved safety over open-door settings regarding suicide, absconding and aggression. Furthermore, there is evidence that the introduction of an open-door policy may lead to short-term reductions in involuntary measures. The aim of this study was to assess if the introduction of an open-door policy is associated with a long-term reduction of the frequency of seclusion and forced medication. METHOD: In this 6-year, hospital-wide, longitudinal, observational study, we examined the frequency of seclusion and forced medication in 17,359 inpatient cases admitted to the Department of Adult Psychiatry, Universitare Psychiatrische Kliniken (UPK) Basel, University of Basel, Switzerland. In an approach to enable a less restrictive policy, six previously closed psychiatric wards were permanently opened beginning from August 2011. During this process, a systematic change towards a more patient-centered and recovery-oriented care was applied. Statistical analysis consisted of generalized estimating equations (GEE) models. RESULTS: In multivariate analyses controlling for potential confounders, the implementation of an open-door policy was associated with a continuous reduction of seclusion (from 8.2 to 3.5%; etap2=0.82; odds ratio: 0.88) and forced medication (from 2.4 to 1.2%; etap2=0.70; odds ratio: 0.90). CONCLUSION: This underlines the potential of the introduction of an open-door policy to attain a long-term reduction in involuntary measures. PMID- 29331600 TI - A real world study on the genetic, cognitive and psychopathological differences of obese patients clustered according to eating behaviours. AB - BACKGROUND: Considering that specific genetic profiles, psychopathological conditions and neurobiological systems underlie human behaviours, the phenotypic differentiation of obese patients according to eating behaviours should be investigated. The aim of this study was to classify obese patients according to their eating behaviours and to compare these clusters in regard to psychopathology, personality traits, neurocognitive patterns and genetic profiles. METHODS: A total of 201 obese outpatients seeking weight reduction treatment underwent a dietetic visit, psychological and psychiatric assessment and genotyping for SCL6A2 polymorphisms. Eating behaviours were clustered through two-step cluster analysis, and these clusters were subsequently compared. RESULTS: Two groups emerged: cluster 1 contained patients with predominantly prandial hyperphagia, social eating, an increased frequency of the long allele of the 5-HTTLPR and low scores in all tests; and cluster 2 included patients with more emotionally related eating behaviours (emotional eating, grazing, binge eating, night eating, post-dinner eating, craving for carbohydrates), dysfunctional personality traits, neurocognitive impairment, affective disorders and increased frequencies of the short (S) allele and the S/S genotype. CONCLUSIONS: Aside from binge eating, dysfunctional eating behaviours were useful symptoms to identify two different phenotypes of obese patients from a comprehensive set of parameters (genetic, clinical, personality and neuropsychology) in this sample. Grazing and emotional eating were the most important predictors for classifying obese patients, followed by binge eating. This clustering overcomes the idea that 'binging' is the predominant altered eating behaviour, and could help physicians other than psychiatrists to identify whether an obese patient has an eating disorder. Finally, recognising different types of obesity may not only allow a more comprehensive understanding of this illness, but also make it possible to tailor patient-specific treatment pathways. PMID- 29331601 TI - Predictors of length of stay in psychiatric inpatient units: Does their effect vary across countries? AB - BACKGROUND: Previous studies in individual countries have identified inconsistent predictors of length of stay (LoS) in psychiatric inpatient units. This may reflect methodological inconsistencies across studies or true differences of predictors. In this study we assessed predictors of LoS in five European countries and explored whether their effect varies across countries. METHODS: Prospective cohort study. All patients admitted over 14 months to 57 psychiatric inpatient units in Belgium, Germany, Italy, Poland and United Kingdom were screened. Putative predictors were collected from medical records and in face-to face interviews and tested for their association with LoS. RESULTS: Average LoS varied from 17.9days in Italy to 55.1days in Belgium. In the overall sample being homeless, receiving benefits, social isolation, diagnosis of psychosis, greater symptom severity, substance use, history of previous admission and being involuntarily admitted predicted longer LoS. Several predictors showed significant interaction effects with countries in predicting LoS. One variable, homelessness, predicted a different LoS even in opposite directions, whilst for other predictors the direction of the association was the same, but the strength of the association with LoS varied across countries. CONCLUSIONS: The same patient characteristics have a different impact on LoS in different contexts. Thus, although some predictor variables related to clinical severity and social dysfunction appear of generalisable relevance, national studies on LoS are required to understand the complex influence of different patient characteristics on clinical practice in the given contexts. PMID- 29331602 TI - A cross-continental analysis of weight gain, psychiatric diagnoses and medication use during inpatient psychiatric treatment. The international study on physical illness in mentally ill. AB - Weight gain among psychiatric inpatients is a widespread phenomenon. This change in body mass index (BMI) can be caused by several factors. Based on recent research, we assume the following factors are related to weight gain during psychiatric inpatient treatment: psychiatric medication, psychiatric diagnosis, sex, age, weight on admission and geographic region of treatment. 876 of originally recruited 2328 patients met the criteria for our analysis. Patients were recruited and examined in mental health care centres in Nigeria (N = 265), Japan (N = 145) and Western-Europe (Denmark, Germany and Switzerland; N = 466). There was a significant effect of psychiatric medication, psychiatric diagnoses and geographic region, but not age and sex, on BMI changes. Geographic region had a significant effect on BMI change, with Nigerian patients gaining significantly more weight than Japanese and Western European patients. Moreover, geographic region influenced the type of psychiatric medication prescribed and the psychiatric diagnoses. The diagnoses and psychiatric medication prescribed had a significant effect on BMI change. In conclusion, we consider weight gain as a multifactorial phenomenon that is influenced by several factors. One can discuss a number of explanations for our findings, such as different clinical practices in the geographical regions (prescribing or admission strategies and access-to care aspects), as well as socio-economic and cultural differences. PMID- 29331603 TI - Metabolic risk factors in schizophrenia and bipolar disorder: The effect of comedication with selective serotonin reuptake inhibitors and antipsychotics. AB - BACKGROUND: The aim of this observational study was to investigate the relationship between metabolic factors and use of selective serotonin reuptake inhibitors (SSRIs) combined with olanzapine, quetiapine or risperidone. METHODS: Data from the Norwegian Thematically Organized Psychosis study, a cross-sectional study on 1301 patients with schizophrenia (n=868) or bipolar disorder (n=433), were analyzed. As exposure variables in the linear regression model were included the dose or serum concentration of SSRIs (n=280) and of olanzapine (n=398), quetiapine (n=234) or risperidone (n=128). The main outcome variables were levels of total cholesterol, low and high density lipoprotein (LDL and HDL) cholesterol, triglycerides and glucose. RESULTS: One defined daily dose (DDD) per day of an SSRI in addition to olanzapine was associated with an increase in total cholesterol of 0.16 (CI 0.01 to 0.32) mmol/L (P=0.042) and an increase in LDL cholesterol of 0.17 (CI 0.02 to 0.31) mmol/L (P=0.022). An SSRI serum concentration in the middle of the reference interval in addition to quetiapine was associated with an increase in total cholesterol of 0.39 (CI 0.10 to 0.68) mmol/L (P=0.011) and an increase in LDL-cholesterol of 0.29 (0.02 to 0.56) mmol/L (P=0.037). There were no such effects when combined with risperidone. CONCLUSIONS: The findings indicate only minor deteriorations of metabolic variables associated with treatment with an SSRI in addition to olanzapine and quetiapine, and none when combined with risperidone. These results suggest that SSRIs can be used in combination with antipsychotics, and that the possible increase in cardiovascular risk is negligible. PMID- 29331606 TI - Editorial. PMID- 29331604 TI - Efficacy of intravenous lidocaine on pain relief in patients undergoing laparoscopic cholecystectomy: A meta-analysis from randomized controlled trials. AB - OBJECTIVE: Whether intravenous lidocaine has a beneficial role in controlling acute pain after a laparoscopic cholecystectomy (LC) in currently unknown. We performed a meta-analysis from randomized controlled trials (RCTs) to determine the efficacy and safety of intravenous lidocaine for the treatment of acute postoperative pain after LC. METHODS: In November 2017, a systematic search was performed in PubMed, EMBASE, Web of Science, ScienceDirect, and the Cochrane Library. RCTs comparing lidocaine and placebo in patients undergoing LC were retrieved. The primary endpoint was the visual analogue scale (VAS) score and opioid requirements at 12 h, 24 h and 48 h. The secondary endpoint was the length of hospital stay and opioid-related adverse effect. Stata 12.0 was used for the data analysis. RESULTS: Finally, six RCTs were included in the meta-analysis. Results indicated that intravenous lidocaine was associated with reduced pain scores and cumulative opioid consumption at 12 h, 24 h, and 48 h following a LC. Similarly, lidocaine was associated with a reduction in the incidence of nausea and vomiting, ileus and pruritus. CONCLUSION: Intravenous use of lidocaine was able to reduce acute postoperative pain, total opioid requirements and opioid related adverse effects following a LC. Further studies should determine whether lidocaine has a positive role in improving the postoperative function after a LC. PMID- 29331607 TI - Solid dispersions to enhance the delivery of a potential drug candidate LPSF/FZ4 for the treatment of schistosomiasis. AB - Drug candidate LPSF/FZ4 with promising schistosomicidal properties in vitro was previously synthesized. However, LPSF/FZ4 has limited aqueous solubility (<1 MUg/mL), leading to ineffective dissolution and, therefore, no meaningful in vivo comparative studies could be pursued. This study was aimed to develop a proper amorphous solid dispersion (SD) to enhance the solubility and dissolution rate of LPSF/FZ4 such that its biological activity could be investigated. To better understand its physiological behavior, the pKa of LPSF/FZ4, a monoprotic weak acid with NH group at the imidazolidine ring, was first determined to be 8.13 using an automated SiriusT3. The development of SD systems for LPSF/FZ4 involved the evaluation of various water-soluble polymer carriers such as PVP K-29/32, PVP K-90, HPMC K4M, PVPVA 64 and SOLUPLUS(r). The most promising SD systems were selected through in vitro dissolution studies under nonsink conditions, together with physicochemical characterization as well as accelerated stability study. It was shown that SD of 10% LPSF/FZ4 in SOLUPLUS(r) and PVP K-90 could significantly increase the area-under-the-curve value of the nonsink dissolution profile (AUC values of the SD in SOLUPLUS(r) and PVP K-90 were 1381.03 and 1342.34 MUL/mL.min, respectively, and that of the pure crystalline drug was 0.02 MUL/mL.min), a useful surrogate for the in vivo bioavailability. Cmax values for the SD in SOLUPLUS(r) (12.50 MUL/mL) and PVP K-90 (25.86 MUL/mL) were also higher than the one of the crystalline drug (0.02 MUL/mL). The SD system of LPSF/FZ4 in SOLUPLUS(r) showed a significant increase in schistosomicidal activity in an animal model as compared with the conventional treatment using crystalline drug, consistent with the AUC trend from the nonsink dissolution. Thus this SD system of LPSF/FZ4 could be useful as a potential formulation for treating schistosomiasis. PMID- 29331608 TI - Allosteric effects in bacteriophage HK97 procapsids revealed directly from covariance analysis of cryo EM data. AB - The information content of cryo EM data sets exceeds that of the electron scattering potential (cryo EM) density initially derived for structure determination. Previously we demonstrated the power of data variance analysis for characterizing regions of cryo EM density that displayed functionally important variance anomalies associated with maturation cleavage events in Nudaurelia Omega Capensis Virus and the presence or absence of a maturation protease in bacteriophage HK97 procapsids. Here we extend the analysis in two ways. First, instead of imposing icosahedral symmetry on every particle in the data set during the variance analysis, we only assume that the data set as a whole has icosahedral symmetry. This change removes artifacts of high variance along icosahedral symmetry axes, but retains all of the features previously reported in the HK97 data set. Second we present a covariance analysis that reveals correlations in structural dynamics (variance) between the interior of the HK97 procapsid with the protease and regions of the exterior (not seen in the absence of the protease). The latter analysis corresponds well with hydrogen deuterium exchange studies previously published that reveal the same correlation. PMID- 29331610 TI - Pseudomonas putida modulates the expression of miRNAs and their target genes in response to drought and salt stresses in chickpea (Cicer arietinum L.). AB - MicroRNAs are small non-coding regulatory RNA molecules that play an important role in the modulation of gene expression during various environmental stresses. Pseudomonas putida RA, a plant growth promoting rhizobacteria (PGPR) colonizes the root surface of plants improving their growth and development during abiotic stresses modulating the expression of stress-responsive genes; however, the impact of RA on stress responsive-miRNA remains elusive. The present study was an attempt to delineate the role of PGPR in modulating stress responsive-miRNAs in a tolerant desi chickpea genotype exposed to drought and salt stresses. The existence of variable expression patterns of individual miRNAs and their target genes under these stresses at different time points indicate a distinct miRNA mediated perception and response mechanisms operating under these stresses in the presence or absence of RA in chickpea. PMID- 29331609 TI - Structure of the Bacillus anthracis dTDP-l-rhamnose biosynthetic pathway enzyme: dTDP-alpha-d-glucose 4,6-dehydratase, RfbB. AB - Many bacteria require l-rhamnose as a key cell wall component. This sugar is transferred to the cell wall using an activated donor dTDP-l-rhamnose, which is produced by the dTDP-l-rhamnose biosynthetic pathway. We determined the crystal structure of the second enzyme of this pathway dTDP-alpha-d-glucose 4,6 dehydratase (RfbB) from Bacillus anthracis. Interestingly, RfbB only crystallized in the presence of the third enzyme of the pathway RfbC; however, RfbC was not present in the crystal. Our work represents the first complete structural characterization of the four proteins of this pathway in a single Gram-positive bacterium. PMID- 29331611 TI - Resistance to peer influence moderates the relationship between perceived (but not actual) peer norms and binge drinking in a college student social network. AB - INTRODUCTION: Adolescent and young adult binge drinking is strongly associated with perceived social norms and the drinking behavior that occurs within peer networks. The extent to which an individual is influenced by the behavior of others may depend upon that individual's resistance to peer influence (RPI). METHODS: Students in their first semester of college (N=1323; 54.7% female, 57% White, 15.1% Hispanic) reported on their own binge drinking, and the perceived binge drinking of up to 10 important peers in the first-year class. Using network autocorrelation models, we investigated cross-sectional relationships between participant's binge drinking frequency and the perceived and actual binge drinking frequency of important peers. We then tested the moderating role of RPI, expecting that greater RPI would weaken the relationship between perceived and actual peer binge drinking on participant binge drinking. RESULTS: Perceived and actual peer binge drinking were statistically significant predictors of participant binge drinking frequency in the past month, after controlling for covariates. RPI significantly moderated the association between perceptions of peer binge drinking and participant's own binge drinking; this association was weaker among participants with higher RPI compared to those with lower RPI. RPI did not interact with the actual binge drinking behavior of network peers. CONCLUSIONS: RPI may function to protect individuals from the effect of their perceptions about the binge drinking of peers, but not from the effect of the actual binge drinking of peers. PMID- 29331612 TI - Arterial Spin Labeling Cerebral Perfusion Magnetic Resonance Imaging in Migraine Aura: An Observational Study. AB - BACKGROUND: Changes in cerebral perfusion during migraine with aura (MA) have been assessed mainly using dynamic susceptibility contrast (DSC) magnetic resonance perfusion imaging. A contrast agent-free method to assess these changes would be desirable. We assessed changes in cerebral perfusion during MA using arterial spin labeling (ASL) perfusion magnetic resonance imaging. METHODS: We investigated 4 patients with a standardized protocol including ASL perfusion imaging during MA (n = 2) or early headache phase (n = 2) and asymptomatic follow up. Semiquantitative evaluation was done using a region of interest (ROI) within hypoperfused or hyperperfused areas and corresponding ROIs in the contralateral hemisphere. Relative ratios of mean perfusion in the corresponding ROIs were calculated. DSC imaging was done at initial time points and compared visually with ASL findings. RESULTS: In all patients, regional perfusion changes were detected in the acute phase. These abnormalities did not respect the boundaries of major cerebral vascular territories but overlapped onto adjoining regions. During MA, adjacent hypoperfused and hyperperfused areas were found, whereas during headache, regional hyperperfusion only was observed. Perfusion abnormalities normalized on follow-up. CONCLUSIONS: ASL perfusion imaging is a contrast agent-free method suitable for assessment of reversible perfusion changes during or immediately after MA. PMID- 29331613 TI - Internal Carotid Artery Web as the Cause of Recurrent Cryptogenic Ischemic Stroke. AB - Carotid artery web is considered an exceptional cause of recurrent ischemic strokes in the affected arterial territory. The underlying pathology proposed for this entity is an atypical fibromuscular dysplasia. We present the case of a 43 year-old woman with no cardiovascular risk factors who had experienced 2 cryptogenic ischemic strokes in the same arterial territory within an 11-month period. Although all diagnostic tests initially yielded normal results, detailed analysis of the computed tomography angiography images revealed a carotid web; catheter angiography subsequently confirmed the diagnosis. Carotid surgery was performed, since which time the patient has remained completely asymptomatic. The histological finding of intimal hyperplasia is consistent with previously reported cases of carotid artery web. Carotid artery web is an infrequent cause of stroke, and this diagnosis requires a high level of suspicion plus a detailed analysis of vascular imaging studies. PMID- 29331614 TI - The Burden of Stroke Mimics: Present and Future Projections. AB - BACKGROUND AND PURPOSE: An increasing proportion of patients presenting with suspected stroke prove to have other conditions, often referred to as stroke mimics. The aim of this study was to present a projection of the number of hospitalized strokes, transient ischemic attacks (TIAs), and stroke mimics in Norway up to the year 2050 based on expected demographic changes, to estimate the burden of stroke mimics in the coming decades. MATERIALS AND METHODS: This prospective study included all admissions to the stroke unit of Akershus University Hospital from March 1, 2012, to February 28, 2013. Relevant resource use was recorded. Based on the age- and sex-specific absolute incidences for the study period, the expected numbers of strokes, TIAs, and stroke mimics in the entire Norwegian population were computed for every fifth year for the period 2020-2050. RESULTS: We included 1881 admissions, of which 38.2% were stroke mimics. With constant age- and sex-dependent incidence rates, we estimated that the number of strokes and stroke mimics will respectively increase by 121.3% and 88.7% (men) and 97.6% and 71.7% (women). For hospital admission levels to stay constant at the 2013 level, an annual reduction of 2.1% and 1.7% (men) and 1.8% and 1.5% (women) must take place for strokes and mimics, respectively. CONCLUSIONS: A significant proportion of stroke unit admissions prove to have other conditions than stroke. With constant age- and sex-dependent incidence rates, the number of stroke mimics admissions will increase substantially over the next decades. PMID- 29331615 TI - Increased brain glucocorticoid actions following social defeat in rats facilitates the long-term establishment of social subordination. AB - Social rank is frequently established through aggressive encounters between new conspecifics. Despite increasing evidence suggesting that social rank is critical for the well-being of both humans and animals, knowledge about the factors influencing social rank remain scarce. Stress was previously shown to affect the establishment and maintenance of social hierarchies in rats. Likewise, increasing systemic corticosterone levels post-encounter in the emerging subordinate rat facilitates the long-term establishment of social subordination. Here, we investigated whether central corticosterone actions are sufficient to mediate this effect. Our data shows that, indeed, an intracerebroventricular corticosterone injection given to the emerging subordinate rat facilitates the long-term maintenance of the subordinate rank. Next, we attempted to identify a particular brain region in which enhancement of corticosterone actions could be sufficient to exert the facilitation of a long-term maintenance in the emerging subordinate brain. However, post-encounter administration of corticosterone into the basolateral amygdala, medial amygdala, lateral septum and the nucleus accumbens, brain regions selected for their implication in social rank establishment and emotional modulation of memory, did not affect long-term social subordination. Our study highlights the involvement of intracerebral corticosterone actions on the facilitation of long-lasting subordinate behavior, likely by having a modulatory role in the neurobehavioral plasticity engaged in the shaping of social subordination. PMID- 29331616 TI - Paediatric video laryngoscopy and airway management: What's the clinical evidence? AB - The major complications of paediatric airway management are uncommon, but the outcomes are often severe. Over the last decade, additions and advancements in the devices and technology have significantly improved our ability to manage difficult paediatric airways safely. Videolaryngoscopy involves the use of video and optical technology to facilitate indirect visualisation of the larynx during intubation and has been seen as an evolutionary step in intubation technology. Over the past few years, videolaryngoscopes have been receiving plenty of attention as new airway devices for use in paediatric patients. The objective of this narrative review is to specify the existing clinical evidence regarding the efficiency and safety of videolaryngoscopy in paediatric airway management. PMID- 29331617 TI - Asthma predictive index in relation to respiratory mechanics by impulse oscillometry in recurrent wheezers. AB - BACKGROUND: The identification of children who will have persistent asthma has become a focus of recent research. The aim of this study was to assess whether impulse oscillometry (IOS) has a diagnostic value to predict modified API (asthma predictive index) in pre-schoolers with recurrent wheezing. METHODS: Pre-school children aged 3-6 years with recurrent wheezing were enrolled. The study population was divided into two groups based on mAPI criteria. Lung function was assessed by IOS. RESULTS: 115 children were assessed; 75 (65.2%) of them were male. The median age was 39 months (min: 36, max: 68 months). 64 (55.6%) of the children were mAPI positive. The R5-R20% levels of children with positive mAPI were significantly higher compared to negative mAPI. Also, R5-R20% levels of children with parental asthma and R20% pred and resonant frequency (Fres) levels of children with inhalant sensitization were higher than those without. No significant differences were found in IOS indices between groups based on the presence of atopic dermatitis, food sensitization, eosinophilia, inhaled corticosteroid usage or wheezing without colds. R5-R20% and total IgE values were found to be significantly related to positive mAPI (aOR: 1.40, p=0.022 and aOR: 1.02, p=0.001, respectively). In the ROC analysis, R5-R20% levels >14.4 had a sensitivity of 75% and specificity of 53% for predicting a positive mAPI (p=0.003). CONCLUSION: IOS may help clinicians to identify the pre-school wheezers with a high risk of asthma. PMID- 29331618 TI - Efficacy and safety of sublingual immunotherapy with Dermatophagoides farinae drops in pre-school and school-age children with allergic rhinitis. AB - BACKGROUND: The safety and efficacy of sublingual immunotherapy (SLIT) have been confirmed by many studies. However, in China, the research on efficacy and safety in young and older children with allergic rhinitis (AR) is still rare. OBJECTIVE: The aim of this retrospective study is to evaluate the efficacy and safety of SLIT with Dermatophagoides farinae drops in pre-school and school-age children with AR. METHODS: A total of 282 subjects aged 2-13 years with AR received a two year course of sublingual immunotherapy along with pharmacotherapy. According to the age, patients were defined as the pre-school group (2-6 years old, n=116) and school-age group (7-13 years old, n=166). Total nasal rhinitis symptom scores (TNSS), visual analogue score (VAS) and total medication scores (TMS) were evaluated at four time points: baseline, after SLIT for half a year, one year and two years. The adverse events (AEs) were evaluated at each visit. RESULTS: After two-year SLIT, the four rhinitis symptom scores, TNSS, VAS and TMS scores were significantly lower than baseline (all P<0.05). The comparison of efficacy between one and two-year duration showed no significant difference in global clinical outcomes (all P>0.05). In addition, there were no significant differences between the pre-school and school-age group in TNSS (all P>0.05), VAS (all P>0.05) and TMS scores (P>0.05) after SLIT for half a year, one year and two years. No severe systemic AEs were reported. CONCLUSION: SLIT with D. farinae drops is clinically effective and safe in pre-school and school-age patients with house dust mites (HDMs)-induced AR. PMID- 29331619 TI - Mycoplasma pneumoniae and toll-like receptors: A mutual avenue. AB - Mycoplasma pneumoniae is an intracellular bacterium leading to several complications in humans. M. pneumoniae is cleared in some cases and induces complications in others. The main responsible mechanisms regarding the controversy are yet to be cleared. Toll-like receptors (TLRs) are the important cell membrane and intracellular receptors which recognize a wide range of microbial macromolecules. The roles of TLRs in the eradication of several pathogens and also induction of their related complications have been demonstrated. This review article presents recent data about the roles of TLRs in the induction of immune responses which lead to M. pneumoniae eradication and related complications. PMID- 29331620 TI - Antagonistic effect of nano-ZnO and cetyltrimethyl ammonium chloride on the growth of Chlorella vulgaris: Dissolution and accumulation of nano-ZnO. AB - The interaction of nanoparticles with coexisting chemicals affects the fate and transport of nanoparticles, as well as their combined effects on aquatic organisms. Here, we evaluated the joint effect of ZnO nanoparticle (nano-ZnO) and cetyltrimethyl ammonium chloride (CTAC) on the growth of Chlorella vulgaris and explored the possible mechanism. Results showed that an antagonistic effect of nano-ZnO and CTAC (0.1, 0.2 and 0.3 mg L-1) was found because CTAC stop nano-ZnO being broken down into solution zinc ions (Zn2+). In the presence of CTAC, the zinc (including nano-ZnO and released Zn2+) showed a higher adsorption on bound extracellular polymeric substances (B-EPS) but lower accumulation in the algal cells. Moreover, we directly demonstrated that nano-ZnO was adsorbed on the algal B-EPS and entered into the algal cells by transmission electron microscope coupled with energy dispersive X-ray (TEM-EDX). Hence, these results suggested that the combined system of nano-ZnO and CTAC exhibited an antagonistic effect due to the inhibition of CTAC on dissolution of nano-ZnO and accumulation of the zinc in the algal cells. PMID- 29331621 TI - Silver ion-enhanced particle-specific cytotoxicity of silver nanoparticles and effect on the production of extracellular secretions of Phanerochaete chrysosporium. AB - This study investigated the influence of silver ions (Ag+) on the cytotoxicity of silver nanoparticles (AgNPs) in Phanerochaete chrysosporium and noted the degree of extracellular secretions in response to the toxicant's stress. Oxalate production was elicited with moderate concentrations of 2,4-dichlorophenol (2,4 DCP) and AgNPs reaching a plateau at 10 mg/L and 10 MUM, respectively. Increased oxalate accumulation was accompanied by higher activities of manganese peroxidase (MnP) and lignin peroxidase (LiP). However, the secretion of oxalate, MnP and LiP was significantly inhibited owing to Ag+ incorporation into AgNP solution. Production of extracellular polymeric substances (EPS) significantly elevated with an increase in 2,4-DCP concentrations; however, after 24 h of exposure to 100 mg/L 2,4-DCP, an obvious decrease in EPS occurred, indicating that part of EPS could be consumed as carbon and energy sources to ameliorate biological tolerance to toxic stress. Furthermore, AgNP-induced "particle-specific" cytotoxicity was substantially enhanced with additional Ag+ as evidenced by its significant negative impact on cellular growth, plasma membrane integrity, and morphological preservation compared with AgNPs at equal Ag concentration. PMID- 29331622 TI - Value of Serial Multiparametric Magnetic Resonance Imaging and Magnetic Resonance Imaging-guided Biopsies in Men with Low-risk Prostate Cancer on Active Surveillance After 1 Yr Follow-up. AB - BACKGROUND: Active surveillance (AS) aims to reduce overtreatment of low-risk prostate cancer (PC). Incorporating multiparametric magnetic resonance imaging (mp-MRI) and MR-guided biopsy (MRGB) in an AS protocol might contribute to more accurate identification of AS candidates. OBJECTIVE: To evaluate the value of 3T mp-MRI and MRGB in PC patients on AS at inclusion and after 12-mo follow-up. DESIGN, SETTING, AND PARTICIPANTS: Patients with cT1c-cT2 PC, prostate-specific antigen (PSA) <=10ng/ml, PSA density <0.2ng/ml/ml, and Gleason scores (GSs) of <=6 and <=2 positive biopsy cores were included and followed in an AS protocol including mp-MRI and MRGB. The mp-MRI and MRGB were performed at <3 and 12 mo after diagnosis. Reclassification was defined as GS >6, >2 positive cores at repeat transrectal ultrasound-guided biopsy (TRUSGB), presence of PC in >3 separate cancer foci upon both MRGB and TRUSGB, or cT3 tumor on mp-MRI. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Reclassification rates, treatment after discontinuation, and outcome on radical prostatectomy after discontinuing AS were reported. Uni- and multivariate analyses were performed to identify predictors of reclassification after 1 yr. RESULTS AND LIMITATIONS: From 2009 to 2013, a total of 111 of 158 patients were consecutively and prospectively included. Around initial diagnosis, 36 patients were excluded from the study protocol; mp-MRI+MRGB reclassified 25/111 (23%) patients, and 11 patients were excluded at own request. Reasons for reclassification were as follows: GS upgrade (15/25, 60%); cT3 disease (3/25, 12%); suspicion of bone metastases (1/25, 4%); and multifocal disease upon MRGB (6/25, 24%). Repeat examinations after 1 yr showed reclassification in 33/75 patients (44%). Reasons were the following: GS upgrade upon TRUSGB (9/33, 27%); volume progression upon TRUSGB (9/33, 27%); cT3 disease upon mp-MRI (1/33, 3%); GS upgrade upon MRGB (1/33, 3%); volume progression upon MRGB (1/33, 3%); multifocal disease upon MRGB (2/33, 6%); and upgrade or upstage upon both TRUSGB and MRGB (10/33, 30%). On logistic regression analysis, the presence of cancer at initial mp-MRI and MRGB examinations was the only predictor of reclassification after 1 yr (odds ratio 5.9, 95% confidence interval 2.0 17.6). CONCLUSIONS: Although mp-MRI and MRGB are of additional value in the evaluation of PC patients on AS, the value of mp-MRI after 1 yr was limited. As a considerable percentage of GS >=7 PC after 1 yr was detected only by TRUSGB, TRUSGB cannot be omitted yet. PATIENT SUMMARY: More aggressive tumors are detected if low-risk prostate cancer patients are additionally monitored by magnetic resonance imaging. However, some high-grade tumors are detected only by transrectal ultrasound-guided biopsy. PMID- 29331623 TI - Male Sexual Dysfunction and Hypogonadism Guidelines for the Aging Male. AB - Cognitive and somatiform changes occur with ageing and are often attributed to late-onset hypogonadism. Testosterone replacement in older men remains controversial despite increasing evidence of symptomatic and clinical benefit in relation to improvements in sexual dysfunction, muscle mass, and diabetic control. The controversial areas related to cardiovascular safety and risk of prostate cancer need to be considered. PMID- 29331624 TI - Comprehensive Geriatric Assessment in the Older Adult with Cancer: A Review. AB - CONTEXT: The number of older adults with cancer is expected to increase rapidly in the upcoming decades. Aging is heterogeneous and chronological age is often not reflective of biological age. A comprehensive geriatric assessment (CGA) is an in-depth assessment of multiple domains of health that results in better assessment of a patient's overall health and fitness and allows directed intervention to improve patient outcomes. OBJECTIVE: To review the value of CGA for older adults with cancer, CGA composition and tools that can be utilized, and the feasibility of including CGA in oncologic practice. EVIDENCE ACQUISITION: The currently available evidence on CGA for older adults with cancer was reviewed. EVIDENCE SYNTHESIS: A CGA can highlight unidentified health problems and identify patients at higher risk of mortality, functional decline, surgical complications, chemotherapy intolerance, and chemotherapy toxicity. It has been shown that CGA is feasible in the oncology clinic, but geriatric screening tools may be useful to specifically identify patients who would benefit from a full CGA. CONCLUSIONS: CGA is feasible and can identify patients at higher risk of adverse events such as mortality, functional decline, surgical complications, and chemotherapy toxicity. Clinicians should consider incorporating CGA when assessing and caring for older adults with cancer. PATIENT SUMMARY: In this report, we review the benefits of a comprehensive geriatric assessment (CGA), a detailed in-depth assessment that identifies health problems not typically identified during routine assessments, for older adults with cancer. We describe the different domains of the CGA and suggest tools to utilize, as well as ways to incorporate CGA into the cancer care setting. PMID- 29331625 TI - Proposing priorities of intervention for the recovery of native fish populations using hierarchical ranking of environmental and exotic species impact. AB - The freshwater populations of native fish species (Ns) have reached critical levels in many parts of the world due to combined habitat deterioration by human interventions and exotic fish species (Es) invasions. These alarming conditions require combined and well-designed interventions for restoring environmental quality and restricting Es invasion. The aim of the study is to propose a method to design spatially explicit priorities of intervention for the recovery of Ns populations in highly impacted freshwater systems by exotic multi-species invasion and water quality (WQ) degradation. WQ and Es are used as Ns descriptors, which require intervention. The method uses gradient analysis (ordination method of Canonical Correspondence Analysis) for assessing the weights of Ns descriptors' effects, which are further used to develop weighted severity indices; the severity index of WQ (Swq) and Es invasion (Se), respectively. Swq and Se are further merged to one combined total severity index St. The proposed method provides a) a ranking of the sites, based on the values of St, which denotes the priority for combined intervention in space and can be visualized in maps, b) a ranking of the most important Ns descriptors for each site to perform site-specific interventions, and c) Es rankings based on their potential threat on Ns for species-specific interventions. WQ, Es and Ns data from 208 sampling sites located in the Emilia-Romagna Region (Northern Italy) were used as a case study for the presentation of the proposed method. The application of the method showed that the north and northwestern lowland areas of Emilia-Romagna region presented the higher priority for intervention since the Ns of these areas are the most impacted from combined Es invasions and WQ degradation. Specific Es belonging to cyprinids, which are mostly responsible for the decline of aquatic vegetation and the increase of water turbidity, and a top Es predator (Wels catfish) were mostly present in these areas. Additionally, the most important WQ stressors of Ns were found to be COD, BOD and temperature that are all connected to oxygen depletion. The aforementioned conditions in the areas described by high priority for intervention can be used as a basis for the development of specific Ns conservation practices targeting the containment of the most harmful Es, the restoration of aquatic vegetation and the improvement of oxygen conditions. PMID- 29331626 TI - Implicit individual discount rate in China: A contingent valuation study. AB - Two contingent valuation (CV) surveys were conducted in Kunming, China, to estimate households' willingness to pay (WTP) for the Panlong River rehabilitation project. The two surveys were conducted using the same procedures and questionnaires except for the payment schedule arrangements, which permitted a calculation of respondents' implicit discount rate. The surveys provided two estimates of WTP, one with a mean of 23 Yuan in monthly payment over 5 years and the other with a mean of 311 Yuan in a lump-sum payment that will cover all the expenses for a period of 5 years. The results produce an estimate of monthly discount rate of 7.6%-12.6% or annual discount rate of 141-315%. The estimates are higher than that reported from those studies conducted in the U.S., but are compatible with that of some other studies. This study also shows that both mean individual WTP and implicit individual discount rates are closely related to household demographic and economic characteristics and environment-related perceptions, as reported in the studies conducted in other countries. PMID- 29331627 TI - Use of interactive data visualization in multi-objective forest planning. AB - Common to multi-objective forest planning situations is that they all require comparisons, searches and evaluation among decision alternatives. Through these actions, the decision maker can learn from the information presented and thus make well-justified decisions. Interactive data visualization is an evolving approach that supports learning and decision making in multidimensional decision problems and planning processes. Data visualization contributes the formation of mental image data and this process is further boosted by allowing interaction with the data. In this study, we introduce a multi-objective forest planning decision problem framework and the corresponding characteristics of data. We utilize the framework with example planning data to illustrate and evaluate the potential of 14 interactive data visualization techniques to support multi objective forest planning decisions. Furthermore, broader utilization possibilities of these techniques to incorporate the provisioning of ecosystem services into forest management and planning are discussed. PMID- 29331628 TI - Getting into the Swing of things: An investigation into rhythmic unimanual coordination in typically developing children. AB - Unimanual coordination is a vital component of everyday life and underpins successful engagement of many activities of daily living and physical activity participation. The ability to coordinate with environmental stimuli has been extensively studied in adults in a variety of situations. However, we know little about these processes in children and even less about how these processes change as age increases. This paper examines children's performance in a rhythmic unimanual coordination task using a handheld pendulum. Participants (aged 6, 9 and 11 years) manipulated the pendulum at 3 frequencies (preferred frequency, +20% of preferred and -20% of preferred frequency) in coordination with 3 stimuli (Visual, Auditory and Visual-Auditory combined). Results showed that children's coordination levels and movement variability improved with age, however still fell below those observed in adults. In addition children demonstrated preferences for visual stimuli or multisensory stimuli compared to auditory stimuli on their own Interestingly, children were found to demonstrate different movement amplitudes for -20%, preferred and +20% frequency conditions. In conclusion, children's unimanual coordination levels were found to follow the typical maturation process and improve with age. Further to this, findings suggest the potential benefit of multisensory information for uni manual coordination in children. PMID- 29331629 TI - Growth and maturity: A quantitative systematic review and network analysis in anthropometric history. AB - This paper reviews the current wealth of anthropometric history since the early efforts of Robert Fogel in the 1970s. The survey is based on a quantitative systematic review of the literature and counts a total of 447 peer-reviewed articles being published in the main leading journals in economic history, economics and biology. Data are analysed using network analysis by journal and author and the main contributions of anthropometric history are highlighted, pointing to future areas of inquiry. The contributions of books and book chapters are also quantified and analysed. PMID- 29331630 TI - mRNA function after intracellular delivery and release. AB - Nanocarrier-mediated mRNA delivery and release into the cells with subsequent translation to protein is of interest in the context of the development of a new generation of drugs. In particular, this protein can play a role of a transcription factor and be used as a tool to regulate temporarily the genetic networks. The corresponding transient kinetics of gene expression are expected to depend on the mechanism and duration of mRNA release. Assuming the release to be rapid on the time scale of other steps, the author shows theoretically the mRNA related transient features of gene expression occurring in stable, bistable, and oscillatory regimes in a single cell. Qualitatively, the results obtained are found to be fairly similar to those reported earlier for the situation when the release is slow. Thus, the features of the transient kinetics under consideration appear to be less sensitive to the duration of mRNA release compared to what one might expect. PMID- 29331632 TI - CT scanning to diagnose CAA: back to the future? PMID- 29331631 TI - The Edinburgh CT and genetic diagnostic criteria for lobar intracerebral haemorrhage associated with cerebral amyloid angiopathy: model development and diagnostic test accuracy study. AB - BACKGROUND: Identification of lobar spontaneous intracerebral haemorrhage associated with cerebral amyloid angiopathy (CAA) is important because it is associated with a higher risk of recurrent intracerebral haemorrhage than arteriolosclerosis-associated intracerebral haemorrhage. We aimed to develop a prediction model for the identification of CAA-associated lobar intracerebral haemorrhage using CT features and genotype. METHODS: We identified adults with first-ever intracerebral haemorrhage diagnosed by CT, who died and underwent research autopsy as part of the Lothian IntraCerebral Haemorrhage, Pathology, Imaging and Neurological Outcome (LINCHPIN) study, a prospective, population based, inception cohort. We determined APOE genotype and radiologists rated CT imaging appearances. Radiologists were not aware of clinical, genetic, and histopathological features. A neuropathologist rated brain tissue for small vessel diseases, including CAA, and was masked to clinical, radiographic, and genetic features. We used CT and APOE genotype data in a logistic regression model, which we internally validated using bootstrapping, to predict the risk of CAA-associated lobar intracerebral haemorrhage, derive diagnostic criteria, and estimate diagnostic accuracy. FINDINGS: Among 110 adults (median age 83 years [IQR 76-87], 49 [45%] men) included in the LINCHPIN study between June 1, 2010 and Feb 10, 2016, intracerebral haemorrhage was lobar in 62 (56%) participants, deep in 41 (37%), and infratentorial in seven (6%). Of the 62 participants with lobar intracerebral haemorrhage, 36 (58%) were associated with moderate or severe CAA compared with 26 (42%) that were associated with absent or mild CAA, and were independently associated with subarachnoid haemorrhage (32 [89%] of 36 vs 11 [42%] of 26; p=0.014), intracerebral haemorrhage with finger-like projections (14 [39%] of 36 vs 0; p=0.043), and APOE E4 possession (18 [50%] of 36 vs 2 [8%] of 26; p=0.0020). A prediction model for CAA-associated lobar intracerebral haemorrhage using these three variables had excellent discrimination (c statistic 0.92, 95% CI 0.86-0.98), confirmed by internal validation. For the rule-out criteria, neither subarachnoid haemorrhage nor APOE E4 possession had 100% sensitivity (95% CI 88-100). For the rule-in criteria, subarachnoid haemorrhage and either APOE E4 possession or finger-like projections had 96% specificity (95% CI 78-100). INTERPRETATION: The CT and APOE genotype prediction model for CAA associated lobar intracerebral haemorrhage shows excellent discrimination in this cohort, but requires external validation. The Edinburgh rule-in and rule-out diagnostic criteria might inform prognostic and therapeutic decisions that depend on identification of CAA-associated lobar intracerebral haemorrhage. FUNDING: UK Medical Research Council, The Stroke Association, and The Wellcome Trust. PMID- 29331633 TI - Organ donation in the ICU: A document analysis of institutional policies, protocols, and order sets. AB - OBJECTIVE: To better understand how local policies influence organ donation rates. RESEARCH METHODOLOGY/DESIGN: We conducted a document analysis of our ICU organ donation policies, protocols and order sets. We used a systematic search of our institution's policy library to identify documents related to organ donation. We used Mindnode software to create a publication timeline, basic statistics to describe document characteristics, and qualitative content analysis to extract document themes. SETTING: Documents were retrieved from Hamilton Health Sciences, an academic hospital system with a high volume of organ donation, from database inception to October 2015. FINDINGS: We retrieved 12 active organ donation documents, including six protocols, two policies, two order sets, and two unclassified documents, a majority (75%) after the introduction of donation after circulatory death in 2006. Four major themes emerged: organ donation process, quality of care, patient and family-centred care, and the role of the institution. These themes indicate areas where documented institutional standards may be beneficial. CONCLUSION: Further research is necessary to determine the relationship of local policies, protocols, and order sets to actual organ donation practices, and to identify barriers and facilitators to improving donation rates. PMID- 29331634 TI - Of blood and bone: the sotatercept adventure. PMID- 29331636 TI - Cell wall damage and oxidative stress in Candida albicans ATCC10231 and Aspergillus niger caused by palladium nanoparticles. AB - In this work the toxic effect of Palladium nanoparticles (PdNPs) was investigated in two eukaryotic cell models, Candida albicans and Aspergillus niger. PdNPs were synthesized by chemical reduction method, obtaining spherical NPs with a primary size ranging from 3 to 15 nm. PdNPs showed a hydrodynamic size of 1548 nm in Lee's minimum media. Minimal inhibitory concentration was determined at 200 and 250 ppm for Candida albicans and Aspergillus niger respectively, revealing a significant cell growth inhibition (ANOVA and tukey analysis, alpha = 0.5). Reactive Oxygen Species levels were increased in both microorganisms. Confocal, scanning and transmission electron microscopy studies revealed cell wall damage and cellular morphology changes, induced by the interaction of PdNPs, in both microorganisms. PMID- 29331635 TI - Sotatercept with long-term extension for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes: a phase 2, dose-ranging trial. AB - BACKGROUND: Myelodysplastic syndromes are characterised by ineffective erythropoiesis leading to anaemia. Sotatercept (ACE-011) is a novel activin receptor type IIA fusion protein that acts as a ligand trap to neutralise negative regulators of late-stage erythropoiesis. The aim of the study was to establish a safe and effective dose of sotatercept for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes. METHODS: This open-label, multicentre, dose-ranging, phase 2 trial took place at 11 treatment centres in the USA and France. Eligible patients were aged 18 years or older, had International Prognostic Scoring System-defined low-risk or intermediate-1-risk myelodysplastic syndromes, had anaemia requiring red blood cell (RBC) transfusions, and were ineligible for, or refractory to, erythropoiesis stimulating agents (ESAs). Patients were not eligible if they had chromosome 5q deletion myelodysplastic syndromes without documented failure of lenalidomide. Patients were randomly assigned to receive either 0.1 or 0.3 mg/kg sotatercept subcutaneously, using a permuted-block method with stratification for serum erythropoietin concentration and transfusion burden. Patients were assigned to 0.5, 1.0, and 2.0 mg/kg groups in a non-randomised fashion. The primary efficacy endpoint was the proportion of patients who achieved haematological improvement erythroid (HI-E), according to International Working Group 2006 criteria. Efficacy and safety analyses were done in the intention-to-treat population. This trial is registered at ClinicalTrials.gov, number NCT01736683 and at EU Clinical Trials Register, number 2012-002601-22, and is ongoing. FINDINGS: Between Dec 5, 2012, and July 22, 2015, 74 patients were enrolled into the study (seven to receive 0.1 mg/kg sotatercept, six to 0.3 mg/kg, 21 to 0.5 mg/kg, 35 to 1.0 mg/kg, and five to 2.0 mg/kg). 36 (49%; 95% CI 38-60) of 74 patients achieved HI E; 29 (47%; 95% CI 35-59) of 62 patients with a high transfusion burden achieved HI-E (RBC-transfusion reduction from baseline of 4 or more units for at least 56 days), and seven (58%; 95% CI 32-81) of 12 patients with a low transfusion burden achieved HI-E (haemoglobin increase of 1.5 g/dL or more sustained for at least 56 days in the absence of transfusions). The most commonly reported adverse events were fatigue in 19 (26%) of 74 patients and peripheral oedema in 18 (24%) of 74 patients. Grade 3-4 treatment-emergent adverse events (TEAEs) were reported in 25 (34%) of 74 patients; four (5%) patients had grade 3-4 TEAEs that were considered to be treatment related. The most common grade 3-4 TEAEs were lipase increase and anaemia, which each occurred in three (4%) of 74 patients. 17 (23%) of 74 patients had at least one serious TEAE, and one patient died from a treatment emergent subdural haematoma due to a fall. INTERPRETATION: Sotatercept, a novel activin-receptor fusion protein, was well tolerated and effective for the treatment of anaemia in patients with lower-risk myelodysplastic syndromes in whom previous ESA treatment had failed. Treatment with sotatercept could be beneficial for these patients who have few available treatment options. FUNDING: Celgene Corporation. PMID- 29331637 TI - Development of a multi-dimensional scale to measure trauma associated with child sexual abuse (MSCSA) and its ramifying impacts on children: A pilot study. AB - BACKGROUND: With the rising incidence of CSA in India and absence of culturally competent tool to assess the impact of trauma, there is a dire need for development of a comprehensive scale to assess the impact of trauma on children. Thus, the present study aims to develop a multi-dimensional CSA tool for children aged between 7 and 13 years. METHOD: Qualitative research method of FGD/Key Interviews with 4 group participants (Parents, counsellors, mental health and medical professionals) and in-depth interview with children having history of CSA was conducted along with item pooling from existing scales. Scale domain and sub constructs were identified through thematic analysis of the qualitative data and statements extracted through item pooling. Face and content validity was obtained followed by the administration of the scale on pilot sample of 30 children meeting selection criteria of the study. RESULTS: 6 domains of the multi dimensional impact of trauma was identified (i.e. Behavioral, Emotional, Cognition, Biological, Psychopathology and Social Functioning) which was constructed in the form of 85 scale statements across 6 domains and 48 sub constructs on a 3-point Likert scale of response in both Hindi as well as English language. The scale was found to be having high reliability and average inter item and inter-domain correlation. Modification of scale items based on pilot study findings and expert feedback analysis done to obtain a final scale containing 78 items. DISCUSSION: Discussion done primarily in terms of scale's psychometric properties, its clinical & research implications, especially focusing on cultural competency of the scale. PMID- 29331638 TI - Comparative analysis of membrane protein structure databases. AB - BACKGROUND: Membrane proteins play important roles in cell survival and cell communication, as they function as transporters, receptors, anchors and enzymes. They are also potential targets for drugs that block receptors or inhibit enzymes related to diseases. Although the number of known structures of membrane proteins is still small relative to the size of the proteome as a whole, many new membrane protein structures have been determined recently. SCOPE OF THE ARTICLE: We compared and analyzed the widely used membrane protein databases, mpstruc, Orientations of Proteins in Membranes (OPM), and PDBTM, as well as the extended dataset of mpstruc based on sequence similarity, the PDB structures whose classification field indicates that they are "membrane proteins" and the proteins with Structural Classification of Proteins (SCOP) class-f domains. We evaluated the relationships between these databases or datasets based on the overlap in their contents and the degree of consistency in the structural, topological, and functional classifications and in the transmembrane domain assignment. MAJOR CONCLUSIONS: The membrane databases differ from each other in their coverage, and in the criteria that they use for annotation and classification. To ensure the efficient use of these databases, it is important to understand their differences and similarities. The establishment of more detailed and consistent annotations for the sequence, structure, membrane association, and function of membrane proteins is still required. GENERAL SIGNIFICANCE: Considering the recent growth of experimentally determined structures, a broad survey and cumulative analysis of the sum of knowledge as presented in the membrane protein structure databases can be helpful to elucidate structures and functions of membrane proteins. We also aim to provide a framework for future research and classification of membrane proteins. PMID- 29331639 TI - Identification of the disinfection byproducts of bisphenol S and the disrupting effect on peroxisome proliferator-activated receptor gamma (PPARgamma) induced by chlorination. AB - Bisphenol S (BPS), an alternative product to bisphenol A (BPA), has been the focus of increasing public concern due to its potential endocrine disrupting effect and its adverse effects related to metabolic disorders such as obesity. The detection of its residue in drinking water supply systems suggests that BPS can be chlorinated; however, whether its endocrine disrupting effect can be disrupted by this chlorination remains unclear. In the present study, we identified the byproducts of the reaction of BPS with chlorine and assessed the effect of the main byproducts on peroxisome proliferator-activated receptor gamma (PPARgamma). BPS was chlorinated in a simulation experiment. The chlorination reaction in this study was chlorine and pH dependent, and the pseudo-first-order reaction rate constant was controlled by the chlorine concentration and pH. The reaction rate at pH 8.5 was 7 times faster than that at pH 6.5. Twenty-two byproducts were putatively identified by liquid chromatography quadrupole time-of flight mass spectrometry (LC-ESI-Q-ToF-MS), and five main byproducts were purified and characterized by 1H and 13C nuclear magnetic resonance (NMR) spectroscopy. The PPARgamma effects of the byproducts were assayed, revealing a2 to4-fold enhancement in their activities in comparison with the parent compound. PMID- 29331640 TI - Recent advances in application of UV light-emitting diodes for degrading organic pollutants in water through advanced oxidation processes: A review. AB - Over the last decade, ultraviolet light-emitting diodes (UV LEDs) have attracted considerable attention as alternative mercury-free UV sources for water treatment purposes. This review is a comprehensive analysis of data reported in recent years (mostly, post 2014) on the application of UV LED-induced advanced oxidation processes (AOPs) to degrade organic pollutants, primarily dyes, phenols, pharmaceuticals, insecticides, estrogens and cyanotoxins, in aqueous media. Heterogeneous TiO2-based photocatalysis in lab grade water using UVA LEDs is the most frequently applied method for treating organic contaminants. The effects of controlled periodic illumination, different TiO2-based nanostructures and reactor types on degradation kinetics and mineralization are discussed. UVB and UVC LEDs have been used for photo-Fenton, photo-Fenton-like and UV/H2O2 treatment of pollutants, primarily, in model aqueous solutions. Notably, UV LED-activated persulfate/peroxymonosulfate processes were capable of providing degradation in DOC-containing waters. Wall-plug efficiency, energy-efficiency of UV LEDs and the energy requirements in terms of Electrical Energy per Order (EEO) are discussed and compared. Despite the overall high degradation efficiency of the UV LED-based AOPs, practical implementation is still limited and at lab scale. More research on real water matrices at more environmentally relevant concentrations, as well as an estimation of energy requirements providing fluence-based kinetic data are required. PMID- 29331641 TI - Enzymes from piezophiles. AB - The discovery of microbial communities in extreme conditions that would seem hostile to life leads to the question of how the molecules making up these microbes can maintain their structure and function. While microbes that live under extremes of temperature have been heavily studied, those that live under extremes of pressure, or "piezophiles", are now increasingly being studied because of advances in sample collection and high-pressure cells for biochemical and biophysical measurements. Here, adaptations of enzymes in piezophiles against the effects of pressure are discussed in light of recent experimental and computational studies. However, while concepts from studies of enzymes from temperature extremophiles can provide frameworks for understanding adaptations by piezophile enzymes, the effects of temperature and pressure on proteins differ in significant ways. Thus, the state of the knowledge of adaptation in piezophile enzymes is still in its infancy and many more experiments and computational studies on different enzymes from a variety of piezophiles are needed. PMID- 29331642 TI - Protein adaptations in extremophiles: An insight into extremophilic connection of mycobacterial proteome. AB - The biological paradox about how extremophiles persist at extreme ecological conditions throws a fascinating picture of the enormous potential of a single cell to adapt to homeostatic conditions in order to propagate. Unicellular organisms face challenges from both environmental factors and the ecological niche provided by the host tissue. Although the existence of extremophiles and their physiological properties were known for a long time, availability of whole genome sequence has catapulted the study on mechanisms of adaptation and the underlying principles that have enabled these unique organisms to withstand evolutionary and environmental pressures. Comparative genomics has shown that extremophiles possess the unique set of genes and proteins that empower them with biochemical machinery necessary to thrive in extreme environments. The presence of these proteins safeguards the cell against a wide array of extreme conditions such as temperature, pressure, radiations, chemicals, drugs etc. An insight into these adaptive mechanisms in extremophiles may help us to devise strategies to alter the genes and proteins that may have therapeutic potential and commercial value. Here we present an overview of the various adaptations in extremophiles. We also try to explain how mycobacterium channelizes its proteome to survive in stress conditions posed by host immune system. PMID- 29331643 TI - Glucagon-like peptide 1 signaling inhibits allergen-induced lung IL-33 release and reduces group 2 innate lymphoid cell cytokine production in vivo. AB - BACKGROUND: IL-33 is one of the most consistently associated gene candidates for asthma identified by using a genome-wide association study. Studies in mice and in human cells have confirmed the importance of IL-33 in inducing type 2 cytokine production from both group 2 innate lymphoid cells (ILC2s) and TH2 cells. However, there are no pharmacologic agents known to inhibit IL-33 release from airway cells. OBJECTIVE: We sought to determine the effect of glucagon-like peptide 1 receptor (GLP-1R) signaling on aeroallergen-induced airway IL-33 production and release and on innate type 2 airway inflammation. METHODS: BALB/c mice were challenged intranasally with Alternaria extract for 4 consecutive days. GLP-1R agonist or vehicle was administered starting either 2 days before the first Alternaria extract challenge or 1 day after the first Alternaria extract challenge. RESULTS: GLP-1R agonist treatment starting 2 days before the first Alternaria extract challenge decreased IL-33 release in the bronchoalveolar lavage fluid and dual oxidase 1 (Duox1) mRNA expression 1 hour after the first Alternaria extract challenge and IL-33 expression in lung epithelial cells 24 hours after the last Alternaria extract challenge. Furthermore, GLP-1R agonist significantly decreased the number of ILC2s expressing IL-5 and IL-13, lung protein expression of type 2 cytokines and chemokines, the number of perivascular eosinophils, mucus production, and airway responsiveness compared with vehicle treatment. GLP-1R agonist treatment starting 1 day after the first Alternaria extract challenge also significantly decreased eosinophilia and type 2 cytokine and chemokine expression in the airway after 4 days of Alternaria extract challenge. CONCLUSION: These results reveal that GLP-1R signaling might be a therapy to reduce IL-33 release and inhibit the ILC2 response to protease containing aeroallergens, such as Alternaria. PMID- 29331644 TI - Ozone exposure induces respiratory barrier biphasic injury and inflammation controlled by IL-33. AB - BACKGROUND: IL-33 plays a critical role in regulation of tissue homeostasis, injury, and repair. Whether IL-33 regulates neutrophil recruitment and functions independently of airways hyperresponsiveness (AHR) in the setting of ozone induced lung injury and inflammation is unclear. OBJECTIVE: We sought to examine the role of the IL-33/ST2 axis in lung inflammation on acute ozone exposure in mice. METHODS: ST2- and Il33-deficient, IL-33 citrine reporter, and C57BL/6 (wild type) mice underwent a single ozone exposure (1 ppm for 1 hour) in all studies. Cell recruitment in lung tissue and the bronchoalveolar space, inflammatory parameters, epithelial barrier damage, and airway hyperresponsiveness (AHR) were determined. RESULTS: We report that a single ozone exposure causes rapid disruption of the epithelial barrier within 1 hour, followed by a second phase of respiratory barrier injury with increased neutrophil recruitment, reactive oxygen species production, AHR, and IL-33 expression in epithelial and myeloid cells in wild-type mice. In the absence of IL-33 or IL-33 receptor/ST2, epithelial cell injury with protein leak and myeloid cell recruitment and inflammation are further increased, whereas the tight junction proteins E-cadherin and zonula occludens 1 and reactive oxygen species expression in neutrophils and AHR are diminished. ST2 neutralization recapitulated the enhanced ozone-induced neutrophilic inflammation. However, myeloid cell depletion using GR-1 antibody reduced ozone-induced lung inflammation, epithelial cell injury, and protein leak, whereas administration of recombinant mouse IL-33 reduced neutrophil recruitment in Il33-deficient mice. CONCLUSION: Data demonstrate that ozone causes an immediate barrier injury that precedes myeloid cell-mediated inflammatory injury under the control of the IL-33/ST2 axis. Thus IL-33/ST2 signaling is critical for maintenance of intact epithelial barrier and inflammation. PMID- 29331645 TI - Realising the potential of various inhaled airway challenge agents through improved delivery to the lungs. AB - Inhaled airway challenges provoke bronchoconstriction in susceptible subjects and are a pivotal tool in the diagnosis and monitoring of obstructive lung diseases, both in the clinic and in the development of new respiratory medicines. This article reviews the main challenge agents that are in use today (methacholine, mannitol, adenosine, allergens, endotoxin) and emphasises the importance of controlling how these agents are administered. There is a danger that the optimal value of these challenge agents may not be realised due to suboptimal inhaled delivery; thus considerations for effective and reproducible challenge delivery are provided. This article seeks to increase awareness of the importance of precise delivery of inhaled agents used to challenge the airways for diagnosis and research, and is intended as a stepping stone towards much-needed standardisation and harmonisation in the administration of inhaled airway challenge agents. PMID- 29331646 TI - Progress in the Management of Advanced Thoracic Malignancies in 2017. AB - The treatment paradigm of NSCLC underwent a major revolution during the course of 2017. Immune checkpoint inhibitors (ICIs) brought remarkable improvements in response and overall survival both in unselected pretreated patients and in untreated patients with programmed death ligand 1 expression of 50% or more. Furthermore, compelling preliminary results were reported for new combinations of anti-programmed cell death 1/programmed death ligand 1 agents with chemotherapy or anti-cytotoxic T-lymphocyte associated protein 4 inhibitors. The success of the ICIs appeared to extend to patients with SCLC, mesothelioma, or thymic tumors. Furthermore, in SCLC, encouraging activity was reported for an experimental target therapy (rovalpituzumab teserine) and a new chemotherapeutic agent (lurbinectedin). For oncogene-addicted NSCLC, next-generation tyrosine kinase inhibitors (TKIs) (such as osimertinib or alectinib) have demonstrated increased response rates and progression-free survival compared with first generation TKIs in patients with both EGFR-mutated and ALK receptor tyrosine kinase gene (ALK)-rearranged NSCLC. However, because of the lack of mature overall survival data and considering the high efficacy of these drugs in patients with NSCLC previously exposed to first- or second-generation TKIs, definitive conclusions concerning the best treatment sequence cannot yet be drawn. In addition, new oncogenes such as mutant BRAF, tyrosine-protein kinase met gene (MET) and erb-b2 receptor tyrosine kinase 2 gene (HER2), and ret proto oncogene (RET) rearrangements have joined the list of potential targetable drivers. In conclusion, the field of thoracic oncology is on the verge of a breakthrough that will open up many promising new therapeutic options for physicians and patients. The characterization of biomarkers predictive of sensitivity or resistance to immunotherapy and the identification of the optimal therapeutic combinations (for ICIs) and treatment sequence (for oncogene-addicted NSCLC) represent the toughest upcoming challenges in the domain of thoracic oncology. PMID- 29331647 TI - The implant effect after intracranial electrode placement: Is transient clinical improvement explained by post-implantation electrophysiological changes? PMID- 29331648 TI - Lung Ultrasound to Detect Residual Pneumothorax After Chest Drain Removal in Lung Resections. AB - BACKGROUND: Indication for postdrain removal imaging after lung resection is debated. Chest roentgenogram (CR) is widely used to confirm lung expansion but not evidence based. We propose to introduce lung ultrasound (LUS) as alternative to exclude significant pneumothorax (PTx) in this setting. METHODS: The study enrolled 50 patients undergoing lung resections. Inclusion criteria were complete expansion of the lung at postoperative CR, pleural effusion of less than 300 mL/24 h, air leak of 10 to 20 mL/min for 6 hours. Two hours after chest drain removal, LUS was performed at the second and third intercostal spaces to assess pleural sliding. Patients with no detected PTx or with apical PTx were considered for discharge. The same patients were blindly evaluated with CR by a second operator, and a comparison between the two methods was performed. Clinical decisions were taken based on CR results. RESULTS: LUS confirmed large PTxs in 7 patients, apical PTxs in 10 patients, and no PTx in 33 patients. CR confirmed 5 of 7 significant PTxs (1 chest drain reinserted, 4 patients observed), and 2 of 7 PTx were considered irrelevant. Apical PTxs were confirmed in 8 of 10 patients, and in 2 patients there was no PTx at CR. The 33 patients with no PTx at LUS had full lung expansion at CR. LUS has a negative predictive value of 100% in excluding large PTxs and a positive predictive value of 71%. CONCLUSIONS: In this subgroup of patients with air leak of 10 to 20 mL/min, performing an imaging study to verify the absence of PTx is desirable; however, when LUS confirms lung expansion or the presence of apical PTx, CR does not seem to be needed. PMID- 29331649 TI - Friend or foe? Reactive oxygen species production, scavenging and signaling in plant response to environmental stresses. AB - In the natural environment, plants are exposed to a variety of biotic and abiotic stress conditions that trigger rapid changes in the production and scavenging of reactive oxygen species (ROS). The production and scavenging of ROS is compartmentalized, which means that, depending on stimuli type, they can be generated and eliminated in different cellular compartments such as the apoplast, plasma membrane, chloroplasts, mitochondria, peroxisomes, and endoplasmic reticulum. Although the accumulation of ROS is generally harmful to cells, ROS play an important role in signaling pathways that regulate acclimatory and defense responses in plants, such as systemic acquired acclimation (SAA) and systemic acquired resistance (SAR). However, high accumulations of ROS can also trigger redox homeostasis disturbance which can lead to cell death, and in consequence, to a limitation in biomass and yield production. Different ROS have various half-lifetimes and degrees of reactivity toward molecular components such as lipids, proteins, and nucleic acids. Thus, they play different roles in intra- and extra-cellular signaling. Despite their possible damaging effect, ROS should mainly be considered as signaling molecules that regulate local and systemic acclimatory and defense responses. Over the past two decades it has been proven that ROS together with non-photochemical quenching (NPQ), hormones, Ca2+ waves, and electrical signals are the main players in SAA and SAR, two physiological processes essential for plant survival and productivity in unfavorable conditions. PMID- 29331650 TI - Echocardiographic patterns of postresuscitation myocardial dysfunction. AB - BACKGROUND: Postresuscitation myocardial dysfunction (PRMD) can develop after successful resuscitation from cardiac arrest. However, echocardiographic patterns of PRMD remain unknown. This study aimed to investigate PRMD manifestations with serial echocardiography during the post-cardiac arrest period. METHODS: We enrolled non-traumatic out-of-hospital cardiac arrest patients older than 19 years who underwent successful cardiopulmonary resuscitation (CPR). We excluded patients with myocardial infarction or pre-existing cardiac disease, including heart failure or myocardial disease. Transthoracic echocardiography (TTE) was performed within 24 h, between 24 and 48 h, and between 72 and 96 h after restoration of spontaneous circulation (ROSC). RESULTS: Of 280 patients, 138 (93 men) were analysed. PRMD was observed in 45 patients (33%), including global dysfunction in 28 patients (20%), regional wall motion abnormalities (RWMA) in 10 (7%), and Takotsubo pattern in 7 (5%). There were no differences in clinical characteristics, laboratory findings, or hospital mortality according to PRMD pattern. Global left ventricular (LV) systolic function gradually improved with time and had recovered to normal by Day 3 in all patients except one with the Takotsubo pattern, which remained on follow-up echocardiography two weeks after ROSC. CONCLUSIONS: PRMD occurs in about one-third of patients resuscitated from cardiac arrest. Echocardiographic patterns of post-cardiac arrest LV dysfunction include global hypokinesia, regional wall motion abnormalities, and Takotsubo pattern. PMID- 29331651 TI - Activation of p62-keap1-Nrf2 antioxidant pathway in the early stage of acetaminophen-induced acute liver injury in mice. AB - Acetaminophen (APAP) overdose can cause severe liver failure even death. Nearly half of drug-induced liver injury is attributed to APAP in the US and many European countries. Oxidative stress has been validated as a critical event involved in APAP-induced liver failure. p62/SQSTM1, a selective autophagy adaptor protein, is reported to regulate Nrf2-ARE antioxidant pathway in response to oxidative stress. However, the exact role of p62-keap1-Nrf2 antioxidant pathway in APAP-induced hepatotoxicity remains unknown. In the present study, the dose response and time-course model in C57/BL6 mice were established by intraperitoneal injection of APAP. The results of serum alanine/aspartate aminotransferases (ALT/AST) and histological examination demonstrated that APAP overdose resulted in the severe liver injury. In the meantime, the levels of p62, phospho-p62 and nuclear Nrf2 were significantly increased by APAP in mice liver, suggesting an activation of p62-keap1-Nrf2 pathway. In addition, the expression of GSTA1 mRNA was increased in a dose-dependent manner, while the mRNA levels of HO-1 and GCLC were decreased with the increase of APAP dose. Our further investigation found that expression of HO-1 and GCLC peaked at 3 h~6 h, and then were decreased gradually. Taken together, these results indicated that p62-keap1 Nrf2 antioxidant pathway was primarily activated in the early stage of APAP hepatotoxicity, which might play a protective role in the process of APAP-induced acute liver injury. PMID- 29331652 TI - Salinomycin induces primary chicken cardiomyocytes death via mitochondria mediated apoptosis. AB - Salinomycin, as a polyether ionophore antibiotic, is extensively used as a feed additive against coccidiosis in poultry and as a growth promoter of ruminants worldwide. Owing to its narrow therapeutic index, numerous intoxication have been reported in target/non-target animals by overdosage, misuse or drug interactions as well as human who consumed salinomycin accidently. Salinomycin-induced cardiotoxicity in chicken and non-target animals is considered as a major contributor to animal death. In the current study, we aim to elucidate the underlying mechanism of its myocardial toxicity using primary chicken myocardial cell as an in vitro model. The results showed that salinomycin altered cellular morphology and induced cell death in a concentration-dependent manner. Salinomycin treatment elevated the permeability of the cell membrane and leaded to the efflux of enzymes, including creatine kinase (CK) and lactate dehydrogenase (LDH). Flow cytometry analysis indicated the number of apoptotic cells increased significantly by salinomycin exposure. Furthermore, caspase-3 and caspase-9 were activated at gene and protein level rather than caspase-8, along with the up-regulation of apoptosis genes Bax, Cytochrome C, Apoptotic peptidase activating factor 1 (Apaf-1) and the down-regulation of Bcl-2. Salinomycin induced mitochondrial dysfunction was accompanied by the significant decrease of mitochondrial membrane potential (MMP) and the severe ultrastructure damage. In conclusion, these findings suggest that the toxic dose of salinomycin induces severe cardiomyocytes death through mitochondria mediated apoptosis pathway. PMID- 29331653 TI - Gallic acid attenuates type I diabetic nephropathy in rats. AB - Literature suggests that TGF-beta1 has a central role in the progression of diabetic nephropathy and its down regulation can improve the disease condition. Oxidative stress, generation of advanced glycation end products and activation of renin angiotensin system are the connecting links between hyperglycemia and TGF beta1 over expression. Gallic acid is a phytochemical having wide range of biological activities. Gallic acid is reported to have antioxidant and advanced glycation inhibitory activity. It has also shown inhibitory effects on angiotensin converting enzyme. Gallic acid qualifies as a drug candidate to be tested in the diabetic nephropathy, one of the important complication of diabetes. Streptozotocin (55 mg/kg body weight, i.p.) induced diabetic nephropathy was used as an experimental model. Gallic acid was evaluated for its possible effect at the dose of 20 and 40 mg/kg body weight. Gallic acid treatment significantly lowered plasma levels of the creatinine and blood urea nitrogen and elevated the levels of the protein and albumin. Gallic acid also improved creatinine clearance. Determination of oxidative stress parameters showed that the oxidative stress in kidney tissues was reduced significantly in gallic acid treated animals. Results of the plasma, urine and oxidative stress parameters were also reflected in the histopathological evaluation showing improvement in kidney pathophysiology. ELISA assay for circulating TGF-beta1 evaluation and immunohistochemical study for determination of kidney expression of TGF-beta1 revealed that gallic acid significantly lowered both the circulating and tissue levels of TGF-beta1. Results support the hypothesis that gallic acid can be effectively used in the treatment of diabetic nephropathy. PMID- 29331654 TI - In vitro and in vivo metabolic activation of rhein and characterization of glutathione conjugates derived from rhein. AB - Rhein (RH), 4,5-dihydroxyanthrauinone-2-carboxylic acid, is found in rhubarb (Dahuang), a traditional herbal medicine. RH has reportedly demonstrated multiple pharmacologic properties. Previous studies have also shown that RH induced hepatotoxicity, but the mechanisms of the adverse effect remain unknown. The major objective of the present study was to study the metabolic pathways of RH in order to identify potential reactive metabolites. One mono-hydroxylation metabolite (M1) was detected in urine and bile of rats given RH. M1 was also observed in rat and human liver microsomal incubations after exposure to RH. A total of three (GSH) conjugates (M2, M3 and M5) were detected in bile of rats treated with RH. We concluded that M2-M3 were directly derived from parent compound RH through spontaneous reaction with GSH. M5 was derived from M1 by reaction with GSH, which required cytoslic GSTs. M5 was further metabolized to the corresponding NAC conjugate (mercapturic acid) and was excreted in urine. P450 2C9 was mainly involved in the oxidation of RH. PMID- 29331655 TI - What makes it so difficult for nurses to coach patients in shared decision making? A process evaluation. AB - BACKGROUND: Primary care nurses play a crucial role in coaching patients in shared decision making about goals and actions. This presents a challenge to practice nurses, who are frequently used to protocol-based working routines. Therefore, an approach was developed to support nurses to coach patients in shared decision making. OBJECTIVES: To investigate how the approach was implemented and experienced by practice nurses and patients. DESIGN: A process evaluation was conducted using quantitative and qualitative methods. SETTINGS/PARTICIPANTS: Fifteen female practice nurses (aged between 28 and 55 years), working with people suffering from diabetes, COPD, asthma and/or cardiovascular diseases, participated. Nurses were asked to apply the approach to their chronically ill patients and to recruit patients (n = 10) willing to participate in an interview or an audio-recording of a consultation (n = 13); patients (13 women, 10 men) were aged between 41 and 88 years and suffered from diabetes, COPD or cardiovascular diseases. METHODS: The approach involved a framework for shared decision making about goals and actions, a tool to explore the patient perspective, a patient profiles model and a training course. Interviews (n = 15) with nurses, a focus group with nurses (n = 9) and interviews with patients (n = 10) were conducted. Nurses filled in a questionnaire about their work routine before, during and after the training course. They were asked to deliver audiotapes of their consultations (n = 13). RESULTS: Overall, nurses felt that the approach supported them to coach patients in shared decision making. Nurses had become more aware of their own attitudes and learning needs and reported to have had more in-depth discussions with patients. The on-the-job coaching was experienced as valuable. However, nurses struggled to integrate the approach in routine care. They experienced the approach as different to their protocol-based routines and expressed the importance of receiving support and the need for integration of the approach into the family physician practice. CONCLUSION: This study shows that changing practice nurses' role from medical experts to coaches in shared decision making is very complex and requires paying attention to skills and attitudes, as well as to contextual factors. Our results indicate that more time and training might be needed for this role transition. Moreover, it might be worthwhile to focus on organizational learning, in order to increase an organization's capacity to change work routines in a collaborative process. Future research into the development and evaluation of health coaching approaches, focusing on shared decision making, is necessary. PMID- 29331656 TI - Effect of a wearable patient sensor on care delivery for preventing pressure injuries in acutely ill adults: A pragmatic randomized clinical trial (LS-HAPI study). AB - IMPORTANCE: Though theoretically sound, studies have failed to demonstrate the benefit of routine repositioning of at-risk patients for the prevention of hospital acquired pressure injuries. OBJECTIVE: To assess the clinical effectiveness of a wearable patient sensor to improve care delivery and patient outcomes by increasing the total time with turning compliance and preventing pressure injuries in acutely ill patients. DESIGN: Pragmatic, investigator initiated, open label, single site, randomized clinical trial. SETTING: Two Intensive Care Units in a large Academic Medical Center in California. PARTICIPANTS: Consecutive adult patients admitted to one of two Intensive Care Units between September 2015 to January 2016 were included (n = 1564). Of the eligible patients, 1312 underwent randomization. INTERVENTION: Patients received either turning care relying on traditional turn reminders and standard practices (control group, n = 653), or optimal turning practices, influenced by real-time data derived from a wearable patient sensor (treatment group, n = 659). MAIN OUTCOME(S) AND MEASURE(S): The primary and secondary outcomes of interest were occurrence of hospital acquired pressure injury and turning compliance. Sensitivity analysis was performed to compare intention-to-treat and per-protocol effects. RESULTS: The mean age was 60 years (SD, 17 years); 55% were male. We analyzed 103,000 h of monitoring data. Overall the intervention group had significantly fewer Hospital Acquired Pressure Injuries during Intensive Care Unit admission than the control group (5 patients [0.7%] vs. 15 patients [2.3%] (OR = 0.33, 95%CI [0.12, 0.90], p = 0.031). The total time with turning compliance was significantly different in the intervention group vs. control group (67% vs 54%; difference 0.11, 95%CI [0.08, 0.13], p < 0.001). Turning magnitude (21 degrees , p = 0.923) and adequate depressurization time (39%, p = 0.145) were not statistically different between groups. CONCLUSIONS AND RELEVANCE: Among acutely ill adult patients requiring Intensive Care Unit admission, the provision of optimal turning was greater with a wearable patient sensor, increasing the total time with turning compliance and demonstrated a statistically significant protective effect against the development of hospital acquired pressure injuries. These are the first quantitative data on turn quality in the Intensive Care Unit and highlight the need to reinforce optimal turning practices. Additional clinical trials leveraging technologies like wearable sensors are needed to establish the appropriate frequency and dosing of individualized turning protocols to prevent pressure injuries in at-risk hospitalized patients. PMID- 29331657 TI - Views of teenage children about the effects of a Parent's mobility disability. AB - BACKGROUND: Few U.S. studies have explored how children experience a parent's mobility disability and its effects on their daily lives. OBJECTIVE: We aimed to engage youth ages 13-17 who had at least one parent with mobility disability in describing their perceptions of their parent's disability and its consequences for their daily and family life. METHODS: Participants videoed and photographed their experiences following general guidelines from the researchers about topics of interest. Participants made their own choices about what they submitted. We used conventional content analysis to identify broad themes. RESULTS: The mean (standard deviation) age of the 10 participants was 15.2 (1.9) years; 5 were male; 9 participants were white. All 5 girls submitted multiple self-focused (selfie) videos made in their bedrooms; the 5 boys submitted more diverse data files. Several broad themes or topics emerged including: the effects of timing and trajectory of the parent's disability; perceptions of early maturity and responsibility; fears and frustrations relating to the parent's disability; support and emerging resilience; and sense of social justice. Participants generally felt their parents' disability made them become - compared to their peers - more mature, responsible, capable of performing household tasks, and aware of disability civil rights. CONCLUSIONS: Participants raised many issues that health care providers should be aware of when youth have parents with mobility disability. A parent's mobility disability may be associated with resilience but also may pose challenges for youth. More research is needed to understand better adolescents' experiences and how clinicians might best assist these youth. PMID- 29331659 TI - Mindfulness-related differences in neural response to own infant negative versus positive emotion contexts. AB - Mindfulness is thought to promote well-being by shaping the way people respond to challenging social-emotional situations. Current understanding of how this occurs at the neural level is based on studies of response to decontextualized emotion stimuli that may not adequately represent lived experiences. In this study, we tested relations between mothers' dispositional mindfulness and neural responses to their own infant in different emotion-eliciting contexts. Mothers (n = 25) engaged with their 3-month-old infants in videorecorded tasks designed to elicit negative (arm restraint) or positive (peekaboo) emotion. During a functional MRI session, mothers were presented with 15-s clips from these recordings, and dispositional mindfulness scores were used to predict their neural responses to arm restraint > peekaboo videos. Mothers higher in nonreactivity showed relatively lower activation to their infants' arm restraint compared to peekaboo videos in hypothesized regions-insula and dorsal prefrontal cortex-as well as non hypothesized regions. Other mindfulness dimensions were associated with more limited areas of lower (nonjudgment) and higher (describing) activation in this contrast. Mothers who were higher in mindfulness generally activated more to the positive emotion context and less to the negative emotion context in perceptual and emotion processing areas, a pattern that may help to explain mindfulness related differences in well-being. PMID- 29331658 TI - Sulforaphene Enhances The Efficacy of Photodynamic Therapy In Anaplastic Thyroid Cancer Through Ras/RAF/MEK/ERK Pathway Suppression. AB - Sulforaphene (SFE), a natural isothiocyanate from cruciferous vegetables has shown a potential anticancer effect against cervical and lung cancer. Palliative treatments like photodynamic therapy (PDT) are being implemented for a long time however, the results are still not promising in case of aggressive cancers like anaplastic thyroid cancer. The objective of this work is to establish an alternative method with the combination of photofrin-PDT and sulforaphene, a natural isothiocyanate from cruciferous vegetables, against human anaplastic thyroid cancer to enhance the efficacy of PDT. In this study, cell viability of FRO cells due to combination treatment was analyzed by MTT assay, Cell cycle arrest, MMP depolarization and ROS generation, analyzed by flow cytometry. Western blot analysis of various proliferative proteins was performed to assess the activity of combination treatment against FRO cells. From the results, sulforaphene alone showed no cytotoxicity against normal cells, however, combination of sulforaphene and photofrin mediated PDT showed a noticeable decrease in cell proliferation against FRO cells. Combination treatment synergistically caused cell cycle arrest via ROS generation and MMP depolarization. The expressions of Ras, MEK, ERK, B-Raf proteins significantly modulated due to combination treatment. PDT and SFE can induce apoptosis in anaplastic thyroid cancer cells individually but while treated in combination, it enhanced the apoptotic and anti-proliferative effect, much higher than the individual doses. In summary, our work designates sulforaphene as a unique natural enhancer of efficacy with PDT against anaplastic thyroid cancer. PMID- 29331660 TI - Persistent contamination of heater-cooler units for extracorporeal circulation cured by chlorhexidine-alcohol in water tanks. AB - Recently, surgical site infections due to non-tuberculous mycobacteria (NTM) have been linked to heater-cooler unit contamination. The European Centre for Disease Prevention and Control and manufacturers now recommend the use of hydrogen peroxide in filtered water to fill heater-cooler unit tanks. After implementation of these measures in our hospital, heater-cooler units became heavily contaminated by opportunistic waterborne pathogens such as Pseudomonas aeruginosa and Stenotrophomonas maltophilia. No NTM were detected but fast-growing resistant bacteria could impair their detection. The efficiency of hydrogen peroxide and chlorhexidine-alcohol was compared in situ. Chlorhexidine-alcohol treatment stopped waterborne pathogen contamination and NTM were not cultured whereas their detection efficiency was probably improved. PMID- 29331661 TI - Effect of LaF3: Ag fluorescent nanoparticles on photodynamic efficiency and cytotoxicity of Protoporphyrin IX photosensitizer. AB - LaF3: Ag nanoparticles (NPs) were synthesized by the co-precipitation method. The produced NPs were characterized by X-ray diffraction (XRD) pattern, scanning electron microscope (SEM), dynamic light scattering (DLS) and Fourier transform infrared spectroscopy (FTIR). The emission spectrum of LaF3:Ag NPs is mostly overlapped with the absorption band of protoporphyrin IX (PpIX) and their conjugation was confirmed by studying fluorescence resonance energy transfer (FRET) from LaF3:Ag donor to protoporphyrin IX acceptor. The energy transfers from LaF3:Ag NPs to photosensitizer molecules is very efficient. So, the produced LaF3:Ag NPs can be recommended as light source for photodynamic therapy (PDT). The thiol group of cysteine was bound to LaF3:Ag NPs in order to conjugate LaF3:Ag NPs and protoporphyrin IX. UVC light source was used to excite fluorescent LaF3:Ag NPs. The reactive oxygen species (ROS) produced by photosensitizer was identified using special fluorescent probes (anthracene, methylene blue and methyl orange) as detectors. PMID- 29331662 TI - Exposure to natural environments, and photographs of natural environments, promotes more positive body image. AB - Five studies were conducted to understand the impact of nature exposure on body image. In three studies using different designs and outcome measures, British university students were exposed to photographs of natural or built environments. Results indicated that exposure to images of natural, but not built, environments resulted in improved state body image. In Study 4, British community participants went on a walk in a natural or built environment, with results indicating that the walk in a natural environment resulted in significantly higher state body appreciation, whereas the walk in a built environment resulted in significantly lower scores. In Study 5, British participants were recruited as they were entering a designed green space on their own volition. Results indicated that spending time in the green space led to improved state body appreciation. These results indicate that exposure to isomorphic or in-situ natural environments has positive effects on state body image. PMID- 29331663 TI - A Multicenter Randomized Trial to Evaluate Hematologic Toxicities after Hyperthermic Intraperitoneal Chemotherapy with Oxaliplatin or Mitomycin in Patients with Appendiceal Tumors. AB - BACKGROUND: Appendiceal cancer is a rare disease that has proven difficult to study in prospective trials. Cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (HIPEC) is an established therapy for peritoneal dissemination from appendiceal cancer. The optimal chemotherapeutic agent to use in the HIPEC is not clear. Mitomycin has long been used, however, our previous phase I experience and European retrospective studies suggest oxaliplatin as an alternative. Therefore, we initiated a multicenter randomized trial to compare mitomycin with oxaliplatin HIPEC for appendiceal cancer. STUDY DESIGN: Patients with mucinous appendiceal neoplasms with evidence of peritoneal dissemination underwent cytoreductive surgery and HIPEC using a closed technique for 120 minutes. Patients were randomized intraoperatively to HIPEC using mitomycin (40 mg) or oxaliplatin (200 mg/M2). Follow-up included daily blood counts and toxicity assessments. RESULTS: One hundred and twenty-one analytic patients were accrued to the trial during 6 years at 3 sites. The patients were 57% female, with a mean age of 55.3 years (range 22 to 82 years). The disease was low grade in 77% and high grade in 23%. There were no significant differences in hemoglobin or platelet counts. The WBC was significantly lower in the mitomycin group between postoperative days 5 and 10. Overall and disease-free survival rates at 3 years were similar at 83.7% and 66.8% for mitomycin and 86.9% and 64.8% for oxaliplatin. CONCLUSIONS: This represents the first completed prospective randomized trial for cancer of the appendix, and shows that multicenter trials for this disease are feasible. Both mitomycin and oxaliplatin are associated with minor hematologic toxicity. However, mitomycin has slightly higher hematologic toxicity and lower quality of life than oxaliplatin in HIPEC. Consequently, oxaliplatin might be preferred in patients with leukopenia and mitomycin preferred in patients with thrombocytopenia due to earlier chemotherapy. PMID- 29331664 TI - Children exhibit different performance patterns in explicit and implicit theory of mind tasks. AB - Three studies tested scope and limits of children's implicit and explicit theory of mind. In Studies 1 and 2, three- to six-year-olds (N = 84) were presented with closely matched explicit false belief tasks that differed in whether or not they required an understanding of aspectuality. Results revealed that children performed equally well in the different tasks, and performance was strongly correlated. Study 3 tested two-year-olds (N = 81) in implicit interactive versions of these tasks and found evidence for dis-unity: children performed competently only in those tasks that did not require an understanding of aspectuality. Taken together, the present findings suggest that early implicit and later explicit theory of mind tasks may tap different forms of cognitive capacities. PMID- 29331665 TI - Blocking LPA-dependent signaling increases ovarian cancer cell death in response to chemotherapy. AB - The paradoxical role of reactive oxygen species in cell death versus cell survival establishes a delicate balance between chemotherapy efficacy and management of detrimental side effects. Normal proliferative signaling requires that cells remain inside a redox range that allows reversible protein oxidation to occur. Shifting the redox environment toward highly reducing or oxidizing states leads to cellular stress and cell death. Reactive oxygen species produced in response to Taxol and cisplatin treatment are necessary for effective cancer cell killing but the same ROS leads to damaging side effects in normal tissues. Combining antioxidants with chemotherapeutics to alleviate the unwanted side effects produces variable and often undesirable effects on cancer treatment. Here, we describe a more targeted method to improve ovarian cancer cell killing without the need for antioxidants. In ovarian cancer cells, lysophosphatidic acid (LPA) is a prominent growth factor that contributes to tumor survival and proliferation. We find that blocking LPA-dependent signaling with a specific receptor antagonist consistently increases cell death in response to both Taxol and cisplatin. We propose that inhibiting the upregulated growth factor-dependent signaling in cancer cells will target chemo-insensitivity, potentially lowering the necessary dose of the drugs and preventing harmful side effects. PMID- 29331667 TI - Vitamin D suppresses macrophage infiltration by down-regulation of TREM-1 in diabetic nephropathy rats. AB - This study intends to investigate the effect of active vitamin D (VD) on the expression of triggering receptor expressed on myeloid cells-1 (TREM-1) in the renal tissues of diabetic nephropathy (DN) rats and to explore the impact of TREM 1 on macrophage adhesion and migration. We find that the expressions of TREM-1 and CD68 protein are higher in DN rats compared with rats in the normal control group and that these changes are decreased in the DN + VD group. In vitro, the capacity for macrophage adhesion and migration and the expression of TREM-1 are increased under high-glucose conditions, but VD inhibits this progress. TREM-1 siRNA decreases high-glucose-induced macrophage adhesion and migration, whereas over-expression of TREM-1 inhibits its action. However, VD cannot suppress high glucose-induced TREM-1 expression and macrophage adhesion and migration when TREM 1 is over-expressed. These results demonstrate that VD can suppress macrophage adhesion and migration by reducing the expression of TREM-1. PMID- 29331668 TI - Earlier and enhanced rehabilitation of mechanically ventilated patients in critical care: A feasibility randomised controlled trial. AB - BACKGROUND: Systematic reviews of early rehabilitation within intensive care units have highlighted the need for robust multi-centre randomised controlled trials with longer term follow up. This trial aims to explore the feasibility of earlier and enhanced rehabilitation for patients mechanically ventilated for >=5days and to assess the impact on possible long term outcome measures for use in a definitive trial. METHODS: Patients admitted to a large UK based intensive care unit and invasively ventilated for >=5days were randomised to the rehabilitation intervention or standard care on a 1:1 basis, stratified by age and SOFA score. The rehabilitation intervention involved a structured programme, with progression along a functionally based mobility protocol according to set safety criteria. RESULTS: 103 out of 128 eligible patients were recruited into the trial, achieving an initial recruitment rate of 80%. Patients in the intervention arm mobilized significantly earlier (8days vs 10 days, p=0.035), at a more acute phase of illness (SOFA 6 vs 4, p<0.05) and reached a higher level of mobility at the point of critical care discharge (MMS 7 vs 5, p<0.01). CONCLUSION: We have demonstrated the feasibility of introducing a structured programme of rehabilitation for patients admitted to critical care. PMID- 29331666 TI - Age-related oxidative changes in pancreatic islets are predominantly located in the vascular system. AB - Aged tissues usually show a decreased regenerative capacity accompanied by a decline in functionality. During aging pancreatic islets also undergo several morphological and metabolic changes. Besides proliferative and regenerative limitations, endocrine cells lose their secretory capacity, contributing to a decline in functional islet mass and a deregulated glucose homeostasis. This is linked to several features of aging, such as induction of cellular senescence or the formation of modified proteins, such as advanced glycation end products (AGEs) - the latter mainly examined in relation to hyperglycemia and in disease models. However, age-related changes of endocrine islets under normoglycemic and non-pathologic conditions are poorly investigated. Therefore, a characterization of pancreatic tissue sections as wells as plasma samples of wild-type mice (C57BL/6J) at various age groups (2.5, 5, 10, 15, 21 months) was performed. Our findings reveal that mice at older age are able to secret sufficient amounts of insulin to maintain normoglycemia. During aging the pancreatic islet area increased and the islet size doubled in 21 months old mice when compared to 2.5 months old mice, whereas the islet number was unchanged. This was accompanied by an age-dependent decrease in Ki-67 levels and pancreatic duodenal homeobox-1 (PDX 1), indicating a decline in proliferative and regenerative capacity of pancreatic islets with advancing age. In contrast, the number of p16Ink4a-positive nuclei within the islets was elevated starting from 10 months of age. Interestingly, AGEs accumulated exclusively in the islet blood vessels of old mice associated with increased amounts of inflammatory markers, such as the inducible nitric oxide synthase (iNOS) and 3-nitrotyrosine (3-NT). In summary, the age-related increase in islet size and area was associated with the induction of senescence, accompanied by an accumulation of non-enzymatically modified proteins in the islet vascular system. PMID- 29331669 TI - Acinetobacter baumannii ST317 can be identified with Martins' trilocus sequence based multiplex-PCR. PMID- 29331670 TI - Circulation of Alphacoronavirus, Betacoronavirus and Paramyxovirus in Hipposideros bat species in Zimbabwe. AB - Bats carry a great diversity of zoonotic viruses with a high-impact on human health and livestock. Since the emergence of new coronaviruses and paramyxoviruses in humans (e.g. Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV) and Nipah virus), numerous studies clearly established that bats can maintain some of these viruses. Improving our understanding on the role of bats in the epidemiology of the pathogens they harbour is necessary to prevent cross species spill over along the wild/domestic/human gradient. In this study, we screened bat faecal samples for the presence of Coronavirus and Paramyxovirus in two caves frequently visited by local people to collect manure and/or to hunt bats in Zimbabwe. We amplified partial RNA-dependent RNA polymerase genes of Alpha and Betacoronavirus together with the partial polymerase gene of Paramyxovirus. Identified coronaviruses were related to pathogenic human strains and the paramyxovirus belonged to the recently described Jeilongvirus genus. Our results highlighted the importance of monitoring virus circulation in wildlife, especially bats, in the context of intense human-wildlife interfaces in order to strengthen prevention measures among local populations and to implement sentinel surveillance in sites with high zoonotic diseases transmission potential. PMID- 29331671 TI - The molecular characteristics of avian influenza viruses (H9N2) derived from air samples in live poultry markets. AB - OBJECTIVE: To study the molecular characteristics of H9N2-subtype avian influenza viruses (AIVs) isolated from air samples collected in live poultry markets (LPMs) and explore their sequence identities with AIVs that caused human infection. METHODS: Weekly surveillance of H9N2-subtype AIVs in the air of LPMs was conducted from 2015 to 2016. H9-positive samples were isolated from chicken embryos. Whole genome sequences of the isolated AIVs were obtained through high throughput sequencing. Phylogenetic analysis and key loci variations of the sequences were further analyzed. RESULTS: A total of 327 aerosol samples were collected from LPMs. Nine samples were positive for H9-subtype AIVs based on quantitative real-time reverse transcription polymerase chain reaction (qRRT PCR). According to the whole genome sequence analysis and phylogenetic analysis, except for the A/Environment/Zhongshan/ZS201505/2015 (ZS201505) strain, 8 gene segments of 8 aerosol H9N2 isolates and 2 H9N2 human isolates in 2015 were located in the same clade. Among key loci variations, except for the ZS201505 strain, H9N2-subtype AIVs had no mutations in eight receptor binding sites of hemagglutinin (HA), and stalks of neuraminidase (NA) proteins exhibited a deletion site of three bases. The PA gene of ZS201503 and ZS201602 exhibited an L336M mutation. The N30D and T215A mutations in the M1 gene and amino acid residues L89V in PB2, P42S in NS1 and S31N in M2 were retained in these 9 strains of H9N2 isolates, which could enhance the virus's virulence. CONCLUSION: Live H9N2 AIVs survived in the aerosol of LPMs in Zhongshan City. The aerosol viruses had a close evolutionary relationship with human epidemic strains, indicating that there might be a risk of AIV transmission from polluted aerosols in LPMs to humans. Mutations in H9N2-subtype AIVs isolated from air samples collected from LPMs suggested their pathogenicity was enhanced to infect humans. PMID- 29331672 TI - Breast cancer screening: Where have we been and where are we going? A personal perspective based on history, data and experience. AB - It is important to understand the history of breast cancer screening to better understand the continuing effort to reduce access to screening. Since the randomized, controlled trials have shown a statistically significant mortality reduction for women ages 40-74, the appropriate threshold for initiating screening is age 40 with no data to support the use of the age of 50 as a threshold for screening. All women are at risk for developing breast cancer and all women should have access to screening. PMID- 29331673 TI - Diversity of Aspergillus section Nigri on the surface of Vitis labrusca and its hybrid grapes. AB - This study investigated the presence of Aspergillus species belonging to Aspergillus section Nigri on Vitis labrusca and its hybrid grapes grown in Brazil. The ability of the fungi isolates to produce ochratoxin A (OTA) and fumonisin B2 (FB2) as well as the presence of these mycotoxins in the grapes were also studied. Eighty-eight samples were collected from the main grape producing states in Brazil: Rio Grande do Sul (n=30), Pernambuco (n=21), Sao Paulo (n=21) and Parana (n=16). The highest average contamination level by A. section Nigri occurred on the grapes from Pernambuco (66.3%). A total of 2042 A. section Nigri isolates was analyzed and clustered in three groups according to morphology characterization: A. section Nigri uniseriate (79.3%), A. niger "aggregate" (18.3%) and A. carbonarius (2.4%). In order to precisely identify the Aspergillus species, two hundred and forty-eight strains were subjected to DNA sequencing. Among the A. section Nigri uniseriate group, the following species were found: A. japonicus, A. uvarum, A. brunneoviolaceus, A. aculeatus and A. labruscus. Within the A. niger "aggregate", the following species were found: A.niger sensu stricto, A. welwitschiae and A. vadensis. Regarding mycotoxin-production capacity, 3.2% of the total A. section Nigri isolates (2042) were positive for OTA production and from A. niger "aggregate" (373) tested, 42.1% were FB2 producers. However, none of the 88 grape samples were contaminated with these mycotoxins. PMID- 29331674 TI - HIV Activates the Tyrosine Kinase Hck to Secrete ADAM Protease-Containing Extracellular Vesicles. PMID- 29331676 TI - Identification of novel amino acid residues of influenza virus PA-X that are important for PA-X shutoff activity by using yeast. AB - The influenza A virus protein PA-X comprises an N-terminal PA region and a C terminal PA-X-specific region. PA-X suppresses host gene expression, termed shutoff, via mRNA cleavage. Although the endonuclease active site in the N terminal PA region of PA-X and basic amino acids in the C-terminal PA-X-specific region are known to be important for PA-X shutoff activity, other amino acids may also play a role. Here, we used yeast to identify novel amino acids of PA-X that are important for PA-X shutoff activity. Unlike wild-type PA-X, most PA-X mutants predominantly localized in the cytoplasm, indicating that these mutations decreased the shutoff activity of PA-X by affecting PA-X translocation to the nucleus. Mapping of the identified amino acids onto the N-terminal structure of PA revealed that some of them likely contribute to the formation of the endonuclease active site of PA. PMID- 29331675 TI - Module Analysis Captures Pancancer Genetically and Epigenetically Deregulated Cancer Driver Genes for Smoking and Antiviral Response. AB - : The availability of increasing volumes of multi-omics profiles across many cancers promises to improve our understanding of the regulatory mechanisms underlying cancer. The main challenge is to integrate these multiple levels of omics profiles and especially to analyze them across many cancers. Here we present AMARETTO, an algorithm that addresses both challenges in three steps. First, AMARETTO identifies potential cancer driver genes through integration of copy number, DNA methylation and gene expression data. Then AMARETTO connects these driver genes with co-expressed target genes that they control, defined as regulatory modules. Thirdly, we connect AMARETTO modules identified from different cancer sites into a pancancer network to identify cancer driver genes. Here we applied AMARETTO in a pancancer study comprising eleven cancer sites and confirmed that AMARETTO captures hallmarks of cancer. We also demonstrated that AMARETTO enables the identification of novel pancancer driver genes. In particular, our analysis led to the identification of pancancer driver genes of smoking-induced cancers and 'antiviral' interferon-modulated innate immune response. SOFTWARE AVAILABILITY: AMARETTO is available as an R package at https://bitbucket.org/gevaertlab/pancanceramaretto. PMID- 29331677 TI - Identification of Potential MR-Derived Biomarkers for Tumor Tissue Response to 177Lu-Octreotate Therapy in an Animal Model of Small Intestine Neuroendocrine Tumor. AB - Magnetic resonance (MR) methods enable noninvasive, regional tumor therapy response assessment, but associations between MR parameters, underlying biology, and therapeutic effects must be investigated. The aim of this study was to investigate response assessment efficacy and biological associations of MR parameters in a neuroendocrine tumor (NET) model subjected to radionuclide treatment. Twenty-one mice with NETs received 177Lu-octreotate at day 0. MR experiments (day -1, 1, 3, 8, and 13) included T2-weighted, dynamic contrast enhanced (DCE) and diffusion-weighted imaging (DWI) and relaxation measurements (T1/T2*). Tumor tissue was analyzed using proteomics. MR-derived parameters were evaluated for each examination day and for different radial distances from the tumor center. Response assessment efficacy and biological associations were evaluated using feature selection and protein expression correlations, respectively. Reduced tumor growth rate or shrinkage was observed until day 8, followed by reestablished growth in most tumors. The most important MR parameter for response prediction was DCE-MRI-derived pretreatment signal enhancement ratio (SER) at 40% to 60% radial distance, where it correlated significantly also with centrally sampled protein CCD89 (association: DNA damage and repair, proliferation, cell cycle arrest). The second most important was changed diffusion (D) between day -1 and day 3, at 60% to 80% radial distance, where it correlated significantly also with peripherally sampled protein CATA (association: oxidative stress, proliferation, cell cycle arrest, apoptotic cell death). Important information regarding tumor biology in response to radionuclide therapy is reflected in several MR parameters, SER and D in particular. The spatial and temporal information provided by MR methods increases the sensitivity for tumor therapy response. PMID- 29331678 TI - MicroRNA-320 Enhances Radiosensitivity of Glioma Through Down-Regulation of Sirtuin Type 1 by Directly Targeting Forkhead Box Protein M1. AB - Glioma is the most common cancer in human brain system and seriously threatens human health. miRNA-320 has been demonstrated to be closely correlated with the development of glioma. However, its effect and molecular mechanism underlying radioresistance have not been fully elucidated in glioma. Here, RT-qPCR assay was used to assess the expressions of miR-320 and forkhead box protein M1 (FoxM1) mRNA in glioma tumor tissues and cells. The effects of miR-320, FoxM1 and sirtuin type 1 (Sirt1) on radiosensitivity in glioma cells were evaluated by clone formation assay, apoptosis assay, histone H2AX phosphorylation level (gammaH2AX) detection and caspase 3 activity analysis, respectively. The direct interaction between miR-320 and FoxM1 was detected by luciferase assay. The protein levels of FoxM1, Sirt1 and gammaH2AX were measured by western blot assay. We found that miR 320 expression was down-regulated and FoxM1 expression was up-regulated in radioresistant glioma tissues and IR-treated glioma cells. miR-320 overexpression dramatically enhanced radiosensitivity, promoted apoptosis, and improved gammaH2AX expression and caspase 3 activity in glioma cells. Luciferase reporter assay and western blot assay further validated that miR-320 suppressed FoxM1 expression by directly targeting 3' UTR region of FoxM1. Moreover, miR-320 inhibited Sirt1 expression via targeting FoxM1 in glioma cells. Furthermore, overexpression of FoxM1 and Sirt1 strikingly attenuated miR-320-induced increase of radiosensitivity, apoptosis and gammaH2AX expression in glioma cells. In conclusion, miR-320 enhanced radiosensitivity of glioma cells through down regulation of Sirt1 by directly targeting FoxM1. PMID- 29331679 TI - Molecular identification of forensically important calliphoridae and sarcophagidae species using ITS2 nucleotide sequences. AB - The application of insect evidence to forensic investigations is mainly based on the estimation of postmortem interval and the identification of insect species from samples that are collected from the crime scene. Due to the limited number of expert taxonomists, species identification is one of the major barriers for crime scene investigators to utilize forensic entomology. Therefore, the molecular identification of species, using mitochondrial cytochrome c oxidase subunit I (COI) gene, has been suggested as an alternative strategy. However, in some cases, these maternally inherited markers cause confusion; hence, nuclear DNA markers such as ITS2 are also required as supporting tools. Eleven Calliphoridae and 5 Sarcophagidae fly species collected from Korea were utilized for PCR amplification and nucleotide sequencing of ITS2 locus. Species Identifier software was used for sequence analysis and comparison. The results demonstrated that 11 Korean Calliphoridae and 5 Korean Sarcophagidae fly species could be distinguished using ITS2 nucleotide sequences. In particular, the sister species, Lucilia illustris and Lucilia caesar were also distinguished, despite the very low level of interspecific diversity. However, when compared with previously reported ITS2 nucleotide sequences, several identification failures were noted. This is the first study that widely analyzed nucleotide sequences of the ITS2 locus from Calliphoridae and Sarcophagidae fly species collected in Korea. PMID- 29331681 TI - Endogenous cortisol in keratinized matrices: Systematic determination of baseline cortisol levels in hair and the influence of sex, age and hair color. AB - The measurement of hair cortisol is increasingly used to measure long-term cumulative cortisol levels and investigate its role as an important stress mediator. In this study a comparative statistical analysis of five independent studies (all analyzed in our laboratory) was performed to investigate baseline ranges of cortisol values in hair and evaluate potential influences of sex, age and hair color. Cortisol concentrations in hair of 554 subjects were measured and a comparative statistical analysis was performed. The analysis showed that cortisol levels significantly differ depending on age. The toddler group (7 months (0.6 years) to 3 years) showed significantly higher values (median 10pg/mg, p-value<0.0001, d=0.78) than the adolescent group. The adolescent groups showed significantly lower (p-value<0.0001, d=0.58 and p<0.0001, d=0.13) values (median 2.4pg/mg and 2.8pg/mg) than the adult group (median 5.8pg/mg). Furthermore, in the adult group men showed significantly higher cortisol values than women (p-value<0.05, d=0.17). This effect could not be seen in the adolescent group. Black hair showed higher cortisol concentrations than blond hair (p-value<0.0001, d=1.3). In addition, two rounds of interlaboratory comparisons for hair cortisol samples between four laboratories revealed very consistent results. Our results demonstrate that baseline cortisol levels are generally low in hair thus making a standardized and well-elaborated analytical method indispensable for accurate determination. Age-dependent normative baseline cortisol levels (toddlers, adolescents and adults) are highly recommended based on the comparative analysis comprising five independent studies. PMID- 29331680 TI - Estimating error rates for firearm evidence identifications in forensic science. AB - Estimating error rates for firearm evidence identification is a fundamental challenge in forensic science. This paper describes the recently developed congruent matching cells (CMC) method for image comparisons, its application to firearm evidence identification, and its usage and initial tests for error rate estimation. The CMC method divides compared topography images into correlation cells. Four identification parameters are defined for quantifying both the topography similarity of the correlated cell pairs and the pattern congruency of the registered cell locations. A declared match requires a significant number of CMCs, i.e., cell pairs that meet all similarity and congruency requirements. Initial testing on breech face impressions of a set of 40 cartridge cases fired with consecutively manufactured pistol slides showed wide separation between the distributions of CMC numbers observed for known matching and known non-matching image pairs. Another test on 95 cartridge cases from a different set of slides manufactured by the same process also yielded widely separated distributions. The test results were used to develop two statistical models for the probability mass function of CMC correlation scores. The models were applied to develop a framework for estimating cumulative false positive and false negative error rates and individual error rates of declared matches and non-matches for this population of breech face impressions. The prospect for applying the models to large populations and realistic case work is also discussed. The CMC method can provide a statistical foundation for estimating error rates in firearm evidence identifications, thus emulating methods used for forensic identification of DNA evidence. PMID- 29331682 TI - Post mortem tryptase cut-off level for anaphylactic death. AB - Serum mast cell tryptase is used to support the diagnosis of anaphylaxis. The recommended clinical cut-off for total tryptase (<11.4MUg/L) appears unsuitable in the post mortem setting due to largely unknown processes which result in significantly elevated levels in these samples. Consequently there is no widely accepted tryptase cut-off level for diagnosing an anaphylactic death. This 5-year retrospective study compared total tryptase levels in post mortem femoral blood in anaphylactic deaths and control. Univariate and multivariate analysis was used to assess the relative contribution of other factors (age, gender, post mortem interval, and presence of resuscitation) on post mortem tryptase levels. Nine anaphylactic deaths and 45 controls were identified. Receiver-operating characteristic (ROC) curve analysis identified an optimal cut-off of 53.8MUg/L, with sensitivity of 89%, and specificity of 93%, for total post mortem tryptase in femoral blood to diagnosis anaphylaxis. No other factors showed any statistical significant contribution to post mortem tryptase elevation. Femoral total post mortem tryptase level of 53.8MUg/L and above is a useful ancillary test in diagnosing an anaphylactic death. PMID- 29331683 TI - Appropriate fossil calibrations and tree constraints uphold the Mesozoic divergence of solenodons from other extant mammals. AB - The mammalian order Eulipotyphla includes four extant families of insectivorans: Solenodontidae (solenodons); Talpidae (moles); Soricidae (shrews); and Erinaceidae (hedgehogs). Of these, Solenodontidae includes only two extant species, which are endemic to the largest islands of the Greater Antilles: Cuba and Hispaniola. Most molecular studies suggest that eulipotyphlan families diverged from each other across several million years, with the basal split between Solenodontidae and other families occurring in the Late Cretaceous. By contrast, Sato et al. (2016) suggest that eulipotyphlan families diverged from each other in a polytomy ~58.6 million years ago (Mya). This more recent divergence estimate for Solenodontidae versus other extant eulipotyphlans suggests that solenodons must have arrived in the Greater Antilles via overwater dispersal rather than vicariance. Here, we show that the young timetree estimates for eulipotyphlan families and the polytomy are due to an inverted ingroup outgroup arrangement of the tree, the result of using Tracer rather than TreeAnnotator to compile interfamilial divergence times, and of not enforcing the monophly of well-established clades such as Laurasiatheria and Eulipotyphla. Finally, Sato et al.'s (2016) timetree includes several zombie lineages where estimated divergence times are much younger than minimum ages that are implied by the fossil record. We reanalyzed Sato et al.'s (2016) original data with enforced monophyly for well-established clades and updated fossil calibrations that eliminate the inference of zombie lineages. Our resulting timetrees, which were compiled with TreeAnnotator rather than Tracer, produce dates that are in good agreement with other recent studies and place the basal split between Solenodontidae and other eulipotyphlans in the Late Cretaceous. PMID- 29331684 TI - Reprogramming neurodegeneration in the big data era. AB - Recent genome-wide association studies (GWAS) have identified numerous genetic risk variants for late-onset Alzheimer's disease (AD) and Parkinson's disease (PD). However, deciphering the functional consequences of GWAS data is challenging due to a lack of reliable model systems to study the genetic variants that are often of low penetrance and non-coding identities. Pluripotent stem cell (PSC) technologies offer unprecedented opportunities for molecular phenotyping of GWAS variants in human neurons and microglia. Moreover, rapid technological advances in whole-genome RNA-sequencing and epigenome mapping fuel comprehensive and unbiased investigations of molecular alterations in PSC-derived disease models. Here, we review and discuss how integrated studies that utilize PSC technologies and genome-wide approaches may bring new mechanistic insight into the pathogenesis of AD and PD. PMID- 29331685 TI - Nucleic adaptability of heterokaryons to fungicides in a multinucleate fungus, Sclerotinia homoeocarpa. AB - Sclerotinia homoeocarpa is the causal organism of dollar spot in turfgrasses and is a multinucleate fungus with a history of resistance to multiple fungicide classes. Heterokaryosis gives rise to the coexistence of genetically distinct nuclei within a cell, which contributes to genotypic and phenotypic plasticity in multinucleate fungi. We demonstrate that field isolates, resistant to either a demethylation inhibitor or methyl benzimidazole carbamate fungicide, can form heterokaryons with resistance to each fungicide and adaptability to serial combinations of different fungicide concentrations. Field isolates and putative heterokaryons were assayed on fungicide-amended media for in vitro sensitivity. Shifts in fungicide sensitivity and microsatellite genotypes indicated that heterokaryons could adapt to changes in fungicide pressure. Presence of both nuclei in heterokaryons was confirmed by detection of a single nucleotide polymorphism in the beta-tubulin gene, the presence of microsatellite alleles of both field isolates, and the live-cell imaging of two different fluorescently tagged nuclei using laser scanning confocal microscopy. Nucleic adaptability of heterokaryons to fungicides was strongly supported by the visualization of changes in fluorescently labeled nuclei to fungicide pressure. Results from this study suggest that heterokaryosis is a mechanism by which the pathogen adapts to multiple fungicide pressures in the field. PMID- 29331686 TI - Quercetin decrease somatic cells count in mastitis of dairy cows. AB - Quercetin is a dietary flavonoid which has an effect on inflammation, angiogenesis and vascular inflammation. In several other flavonoids (e.g. kaempferol, astragalin, alpinetin, baicalein, indirubin), anti-inflammatory mechanism was proven by using mice mastitis model. The aim of the current study was pilot analysis of quercetin tolerability and its impact on somatic cells count (SCC) after multiple intramammary treatment on dairy cows with clinical mastitis. Based on SCC and clinical investigation, 9 dairy cows with clinical mastitis of one quarter were selected for the pilot study. Baseline analysis (hematology, TNFalpha, SCC) was performed every 24h among all cows three days before the first dose (B1-B3). After the baseline monitoring (B1-B3) eight days treatment (D1-D8) was performed with a high and low dose. Selected blood parameters were analyzed. Starting from D1 to D8, a decrease of SCC in relation to baseline was characterized by declining trend. The presented results allowed the confirmation of the significant influence of quercetin on the reduction of SCC in mastitis in dairy cows after 8days of therapy. PMID- 29331687 TI - Probiotics Bacillus toyonensis and Saccharomyces boulardii improve the vaccine immune response to Bovine herpesvirus type 5 in sheep. AB - There have been significant efforts toward the development of more efficient vaccines for animal health. A strategy that may be used to improve vaccine efficacy is the use of probiotics. Bovine herpesvirus 5 (BoHV-5) is an example of an important animal pathogen for which vaccines have provided only limited protection. In this study, we examined the use of the probiotics Bacillus toyonensis and Saccharomyces boulardii as a potential immune modulator to improve vaccine efficiency. Thirty, 5-month-old lambs were randomly grouped in three lots of 10 each and vaccinated at days 0, 21 and 42 of the experiment. They grazed on the same pasture and were fed ad libitum twice a day with commercial sheep feed supplemented with either B. toyonensis (1*106CFU/g of feed) or S. boulardii (1*107CFU/g of feed), or non-supplemented feed. The probiotic supplementation was suspended day 28; thereafter, the next 35days, they were fed with the same commercial feed as control group. Animals supplemented with probiotics showed a significant (p>0.001) increased seroconversions against BoHV-5, and higher neutralizing antibodies titres (p>0.05) to BoHV-5 than non-supplemented animals. At 63days of experiment, splenocytes from the supplemented sheep had higher mRNA transcription levels of cytokines IL-10 and IL-17A. These results suggest that these probiotics could provide a promising means of improving vaccine efficacy. PMID- 29331688 TI - Coproheme decarboxylases - Phylogenetic prediction versus biochemical experiments. AB - Coproheme decarboxylases (ChdCs) are enzymes responsible for the catalysis of the terminal step in the coproporphyrin-dependent heme biosynthesis pathway. Phylogenetic analyses confirm that the gene encoding for ChdCs is widespread throughout the bacterial world. It is found in monoderm bacteria (Firmicutes, Actinobacteria), diderm bacteria (e. g. Nitrospirae) and also in Archaea. In order to test phylogenetic prediction ChdC representatives from all clades were expressed and examined for their coproheme decarboxylase activity. Based on available biochemical data and phylogenetic analyses a sequence motif (-Y-P-M/F-X K/R-) is defined for ChdCs. We show for the first time that in diderm bacteria an active coproheme decarboxylase is present and that the archaeal ChdC homolog from Sulfolobus solfataricus is inactive and its physiological role remains elusive. This shows the limitation of phylogenetic prediction of an enzymatic activity, since the identified sequence motif is equally conserved across all previously defined clades. PMID- 29331689 TI - Baicalin inhibits pressure overload-induced cardiac fibrosis through regulating AMPK/TGF-beta/Smads signaling pathway. AB - AMP-activated protein kinase (AMPK) is a central regulator of multiple metabolic pathways. It has been shown that activation of AMPK could inhibit fibroblast proliferation and extracellular matrix (ECM) accumulation, thereby suppressing cardiac fibrosis. Baicalin, the major component found in skullcap, possesses multiple protective effects on the cardiovascular system. However, little is known about the effect of baicalin on cardiac fibrosis and the molecular mechanism by which baicalin exerts its anti-fibrotic effects has not been investigated. In this study, we revealed that baicalin could inhibit cell proliferation, collagen synthesis, fibronectin (FN) and Connective tissue growth factor (CTGF) protein expression in cardiac fibroblasts induced by angiotensin II (Ang II). It also ameliorated cardiac fibrosis in rats submitted to abdominal aortic constriction (AAC). Moreover, baicalin inhibited transforming growth factor-beta (TGF-beta)/Smads signaling pathway stimulated with Ang II through activating AMPK. Subsequently, we also demonstrated that baicalin attenuated Ang II-induced Smad3 nuclear translocation, and interaction with transcriptional coactivator p300, but promoted the interaction of p300 and AMPK. Taken together, these results provide the first evidence that the effect of baicalin against cardiac fibrosis may be attributed to its regulation on AMPK/TGF-beta/Smads signaling, suggesting the therapeutic potential of baicalin on the prevention of cardiac fibrosis and heart failure. PMID- 29331690 TI - Effect of depressive symptoms on the evolution of neuropsychological functions over the course of adolescence. AB - INTRODUCTION: Comprehensive understanding of the association between depression and neuropsychological functioning over the course of adolescence requires developmentally sensitive assessment through longitudinal data. The aim of current study is to examine the concurrent and subsequent effects of depressive symptoms on the initial level and evolution of four neuropsychological functioning domains (i.e., spatial working memory, delayed recall memory, perceptual reasoning, and inhibitory control). METHOD: Depressive symptoms and neuropsychological functioning were assessed over the course of four years in a sample of 3826 Canadian adolescents. A series of multilevel models estimated the between-person, within-person, and lagged within-person effects of depressive symptoms on each domain of neuropsychological functioning. RESULTS: Findings suggest that current year and past year depressive symptoms were associated with poorer performance in delayed recall memory and perceptual reasoning tasks. Likewise, past year depressive symptoms were associated with poorer spatial working memory performance. These detrimental effects were stronger in early adolescence. LIMITATIONS: The current study examined the presence of sub-clinical depressive symptoms but not clinical depression. Moreover, although depressive symptoms and neuropsychological functions were assessed using widely used, valid, and reliable computer-based instruments, the results may not match the accuracy of clinician-based assessments. CONCLUSIONS: Our results underline the necessity of early intervention for young adolescents to decrease the harms associated with depression. The effect of early-onset depression on the underlying neural substrates of neuropsychological functioning merits further investigation. PMID- 29331691 TI - Design limitations to bipolar II treatment efficacy studies: A challenge and a revisionist strategy. AB - BACKGROUND: Trials examining medication efficacy for bipolar II disorder commonly employ a set of standardized interval measures to assess outcomes. The key issue is whether such interval measures pick up changes in the severity, duration and frequency of depressive, hypomanic and euthymic episodes. METHOD: We examine the application of measures most commonly used to monitor progress in nine studies involving participants with a bipolar II disorder and published in journals with a moderate to high impact factor. RESULTS: Studies rarely provided interval details for assessing depressive and hypomanic symptoms. None specified whether ratings of depressive and hypomanic symptoms were based on severity, duration or number of symptoms, and none recorded any data on euthymic periods. LIMITATIONS: Our sample of reviewed studies was small and our analyses focused only on the three most commonly used outcome measures. We advocate for complementary subjective daily mood monitoring strategies but recognize that such strategies need to be validated in future studies. CONCLUSIONS: We argue that interval ratings undertaken weekly or over longer periods may compromise efficacy data. We recommend that userguides be developed to ensure standard outcome measures are employed consistently across trials, and that specific details be published in trial papers about how measures were employed and what mood episode characteristics were measured at each assessment. We also argue for daily ratings to be used as an outcome measure to provide data on severity, frequency and duration of depressive, hypomanic and euthymic periods in intervention studies of those with a bipolar II disorder. PMID- 29331693 TI - Disease management apps and technical assistance systems for bipolar disorder: Investigating the patients' point of view. AB - BACKGROUND: Smartphone-based disease management has become increasingly interesting for research in the field of bipolar disorders. This article investigates the attitudes of persons affected by this disorder towards the appropriation of mobile apps or assistance systems for the management of their disease. METHODS: We conducted two separate studies. Study 1 was an online survey with 88 participants. In study 2 we consulted 15 participants during a semi structured interview. All the participants had formerly been diagnosed with bipolar disorder. RESULTS: More than half of the participants of study 1 and most participants of study 2 agreed with the use of an app or assistance system for self-ratings, third party ratings and an objective symptom monitoring. Potential interventions that were popular in both groups included a regular feedback, the visualization of monitored data and advice in crises. LIMITATIONS: With study 1 we were not able to ensure correct diagnoses or to interact in a flexible way. In Study 2 those issues were resolved, but the small number of participants raises the question of a possible generalisability of the results. Furthermore, for both studies a selection bias could not be excluded. CONCLUSIONS: Our results indicate positive attitudes of bipolar patients towards disease management apps and assistance systems. Even new and innovative features such as partner apps or the analysis of facial expressions in video data were appreciated and daily interactions were favoured. However, the variety of answers calls for flexible systems which allow activating or deactivating certain features. PMID- 29331692 TI - Memory performance predicts response to psychotherapy for depression in bipolar disorder: A pilot randomized controlled trial with exploratory functional magnetic resonance imaging. AB - OBJECTIVE: This pilot randomized controlled trial compared Cognitive Behavior Therapy (CBT) and Supportive Psychotherapy (SP) for the treatment of depression in bipolar I disorder. We also examined whether exploratory verbal memory, executive functioning, and neural correlates of verbal memory during functional magnetic resonance imaging (fMRI) predicted change in depression severity. METHODS: Thirty-two adults (ages 18-65) with DSM-IV bipolar I disorder meeting current criteria for a major depressive episode were randomized to 18 weeks of CBT or SP. Symptom severity was assessed before, at the mid-point, and after the 18-week intervention. All participants completed a brief pre-treatment neuropsychological testing battery (including the California Verbal Learning Test 2nd Edition, Delis Kaplan Executive Functioning System [DKEFS] Trail-making Test, and DKEFS Sorting Test), and a sub-set of 17 participants provided usable fMRI data while completing a verbal learning paradigm that consisted of encoding word lists. RESULTS: CBT and SP yielded comparable improvement in depressive symptoms from pre- to post-treatment. Better retention of learned information (CVLT-II long delay free recall vs. Trial 5) and recognition (CVLT-II hits) were associated with greater improvement in depression in both treatments. Increased activation in the left dorsolateral prefrontal cortex and right hippocampus during encoding was also related to depressive symptom improvement. LIMITATIONS: Sample size precluded tests of clinical factors that may interact with cognitive/neural function to predict treatment outcome. CONCLUSION: Neuropsychological assessment and fMRI offer additive information regarding who is most likely to benefit from psychotherapy for bipolar depression. PMID- 29331694 TI - Distinctive use of newer and older antidepressants in major geographical areas: A nationally representative register-based study. AB - BACKGROUND: It is unknown whether newer, mainly selective serotonin reuptake inhibitors, and older tricyclic antidepressants are used similarly regardless of the geographical area of residence and education. METHODS: We included four randomly sampled cohorts of the Finnish working aged population (n = 998,540 1,033,135). The sampling (Dec 31st in 1995, 2000, 2004 and 2010) resulted in non overlapping time windows where each participant was followed up for four years for the first antidepressant use. Using Cox proportional hazards models, we examined whether the hazard of antidepressant use differed between the capital area and three other areas (Southern, Western and Northern/Eastern Finland). Educational differences were examined using four sub-groups: capital area/high education (reference category); other areas/high education; capital area/low education; and other areas/low education. RESULTS: Hazard ratios for the use of newer antidepressants were significantly lower in all other areas compared to the capital area after adjustment for age, sex, marital status, employment status, education, income, and area-level unemployment. Findings remained consistent in all time windows, differences increasing slightly. In the sub-group analysis those with low education had the lowest level of use in all areas, also within the capital area. The results were opposite for older antidepressants in all but the last time window. LIMITATIONS: Some degree of unmeasured confounding and exposure misclassification is likely to exist. CONCLUSIONS: Newer antidepressants were more commonly used in the capital than in the other areas, and among those with high versus low education. These differences in antidepressant use suggest socioeconomic inequalities in the mental health treatment quality. PMID- 29331695 TI - Depression and playfulness in fathers and young infants: A matched design comparison study. AB - BACKGROUND: Depression in fathers in the postnatal period is associated with an increased risk of some adverse child developmental outcomes. One possible mechanism for the familial transmission of risk is through the negative effects of depression on parenting and the parent-child relationship. So far, evidence indicates that depressed fathers tend to be more withdrawn in their early interactions. However, the interaction dimensions studied to date may not be able to detect and accurately classify unique features of father-infant play - including physically stimulating and highly rousing episodes of play. Hence, in this matched design comparison study, we set out to examine, for the first time, links between diagnosed paternal depression in the postnatal period and playfulness in father-infant interactions. METHODS: Fathers and their infants were assessed when the infants were 3 months old. Paternal depression was diagnosed using a structured psychiatric interview. Currently depressed (n = 19) and non-depressed (n = 19) fathers were individually matched on age and education. Fathers were filmed playing with their children. Four dimensions were coded for paternal playfulness during free-play: physicality, playful excitation, tactile stimulation and active engagement. RESULTS: Depressed fathers, compared to non-depressed fathers, engaged in fewer episodes of playful excitation (mean scores: 0.71 vs.2.53, p = 0.005), less gentle touch (mean time: 38.57 vs. 53.37, p = 0.015) and less active engagement (mean scores: 2.29 vs 3.24, p = 0.044). When controlling for infant fretfulness, the findings remained largely unchanged. LIMITATIONS: The sample size was small and the sample was limited to mostly white, well-educated fathers. CONCLUSIONS: Playful paternal behaviours as early as 3 months differ between fathers with and without depression. These changes may help in understanding children's risk in relation to paternal psychopathology and could be a target for future family interventions. PMID- 29331696 TI - Does early response predict subsequent remission in bipolar depression treated with repeated sleep deprivation combined with light therapy and lithium? AB - BACKGROUND: The combination of three cycles of sleep deprivation (SD), light therapy (LT), and lithium has recently been proposed as a possible first-line treatment for bipolar depression. However, it is unclear whether early improvement predicts final response/remission in bipolar depression treated with this regimen. METHOD: We studied 220 consecutively admitted inpatients with a major depressive episode in the course of bipolar disorder. The relation between response to first SD and response/remission at the end of the treatment (day 6) was analyzed using logistic regression analysis. Severity of depression was rated using the Hamilton Depression Rating Scale (HDRS). Clinical response was defined as a >=50% reduction in HDRS scores, and remission was defined as an HDRS score of <=7. RESULTS: Among the 217 completers, 67.7% showed response and 54.4% reached remission at the end of the treatment. Multiple logistic regression analysis revealed that response after first recovery sleep (day 2) predicted final response and remission at the end of the treatment with high odds ratios (10.9 for response and 8.2 for remission); however, response immediately after the first SD (day 1) did not predict final response or remission. LIMITATIONS: Whether our results can be generalized to unipolar depression remains uncertain. CONCLUSION: Clinical status after first recovery sleep is a strong predictor of successful final outcome in patients with bipolar depression treated with the combination of repeated SD, LT, and lithium. Recovery sleep may play a role in inducing the antidepressant effect associated with the success of treatment. PMID- 29331697 TI - Longitudinal trajectories of post-traumatic stress disorder (PTSD) after birth and associated risk factors. AB - BACKGROUND: Although longitudinal trajectories of post-traumatic stress disorder (PTSD) are well-established in general trauma populations, very little is known about the trajectories of birth-related PTSD. This study aimed to identify trajectories of birth-related PTSD; determine factors associated with each trajectory; and identify women more likely to develop birth-related PTSD. METHOD: 226 women who had traumatic childbirth according to DSM-IV criterion A were drawn from a community sample of 950 women. Measures were taken of PTSD, affective symptoms, fear of childbirth and social support in pregnancy, 4-6 weeks and 6 months postpartum. Information on some obstetric and psychosocial factors were also prospectively obtained. RESULTS: Four trajectories were identified: resilience (61.9%), recovery (18.5%), chronic-PTSD (13.7%) and delayed-PTSD (5.8%). Resilience was consistently distinguished from other PTSD trajectories by less affective symptoms at 4-6 weeks postpartum. Poor satisfaction with health professionals was associated with chronic-PTSD and delayed-PTSD. When affective symptoms at 4-6 weeks postpartum were removed from the model, less social support and higher fear of childbirth 4-6 weeks after birth predicted chronic and recovery trajectories; whereas experience of further trauma and low levels of satisfaction with health professionals were predictive of chronic-PTSD and delayed-PTSD, compared to resilience. Additional variables associated with different trajectories included antenatal affective symptoms, caesarean-section, preterm birth and receiving professional help. LIMITATIONS: Use of self-report measures, use of DSM-IV criteria for PTSD diagnosis, and no follow-up beyond six months are the main limitations of this study. CONCLUSION: Identified factors may inform preventive and treatment interventions for women with traumatic birth experiences. PMID- 29331698 TI - Exploring metabolic factors and health behaviors in relation to suicide attempts: A case-control study. AB - BACKGROUND: Suicide attempts are a serious public health concern with devastating global impact, thereby necessitating the development of an adequate prevention strategy. Few known risk factors of suicide attempts are directly modifiable. This study sought to investigate potential associations between health behaviors and suicide attempts, identifying novel opportunities for clinicians to help prevent suicidal behavior. METHODS: A case-control study was conducted to compare body weight, serum total cholesterol, physical activity, tobacco use, and dietary food groups among adults who had made a suicide attempt (n = 84) to psychiatric inpatients (n = 104) and community controls (n = 93) without history of suicide attempt. Multivariable binary logistic regression analyses were used to investigate the association between metabolic risk factors and attempted suicide. RESULTS: Psychiatric inpatients who had attempted suicide were less likely to be physically active [moderate/strenuous (OR 0.42, 95% CI 0.19-0.95) and mild (OR 0.35, 95% CI 0.16-0.76)] compared to controls. Psychiatric inpatients who attempted suicide were more likely to use tobacco (OR 2.25, 95% CI 1.07-4.73) compared to controls. Contrary to prior research, obesity, serum total cholesterol, and diet were not significantly associated with risk of attempted suicide. LIMITATIONS: Our study was limited by its cross-sectional design, which precludes the identification of causal or temporal relationships between the risk of attempted suicide and factors such as physical activity and tobacco use. CONCLUSIONS: Study results suggest that a history of attempted suicide is associated with a decreased likelihood of being physically active and an increased risk of tobacco use. Further investigation is warranted to understand the role of exercise and tobacco use in suicide intervention and prevention strategies. PMID- 29331699 TI - Simultaneous social causation and social drift: Longitudinal analysis of depression and poverty in South Africa. AB - BACKGROUND: Two theories have been proposed to explain the observed association between depression and poverty, namely social causation and social drift. Little is known regarding the relative importance of social causation and social drift in low and middle-income countries, where poverty is more severe and where most of the world's depressed individuals live. METHODS: We analysed nationally representative longitudinal data from the National Income Dynamics Study in South Africa and simultaneously tested social causation and social drift hypotheses using structural equation modelling across three waves. RESULTS: Worse individual economic status at time 1 and 2 was independently associated with worse depression two years later at time 2 (standardised linear regression coefficient beta = -0.110, Standard Error (SE): 0.024) and four years later at time 3 (beta = -0.113, SE: 0.025) respectively. Conversely worse depression at time 1 and time 2 was independently associated with worse economic status at time 2 (beta = -0.037, SE: 0.016) and time 3 (beta = -0.028, SE: 0.012) respectively. In addition, the "effect" of depression on future assets was stronger among people with less baseline assets. LIMITATIONS: The time span between data rounds is relatively short (four years); response rates are unequal across ethnic, age and sex groups; and the measure of depression is based on self-report. CONCLUSIONS: Social causation and social drift act simultaneously in this population, reinforcing poverty/depression cycles. Multi-sectoral policies are required that both prevent depression by addressing its economic determinants, and provide evidence-based treatment to mitigate the economic impact of depression. PMID- 29331700 TI - Effects of macrophage migration inhibitory factor on cardiac reperfusion injury in mice with depression induced by constant-darkness. AB - RATIONALE: Depression is associated with coronary artery disease and increases adverse outcomes and mortality in patients with acute myocardial infarction, but the underlying pathophysiological mechanisms remain unclear. OBJECTIVE: To evaluate the effect of macrophage migration inhibitory factor (MIF) on cardiac ischemia-reperfusion (I/R) injury in mice with constant darkness-induced depression. METHODS AND RESULTS: Twenty C57BL/6 mice (8 weeks old, male) were randomly divided into 2 groups: one group was housed in a 12h light/dark cycle environment (LD) and the other in a constant darkness environment (DD). After 3 weeks, constant darkness-exposed (DD) mice displayed depression-like behavior as indicated by increased immobility in the forced swim test (FST) and lower sucrose preference rate. Western blotting revealed cardiac MIF expression was significantly lower in the DD mice than that in the LD mice. Next, 84 mice were randomly divided into 4 groups: LD sham group, LD I/R group, DD sham group, and DD I/R group. Following ischemia and reperfusion, mice in the DD I/R group had a larger infarct area and lower heart function index than mice in the LD I/R group (P < 0.05 for both). The cardiac pAMPK and pACC expression levels of the DD I/R group were also lower in the DD I/R group (P < 0.05). CONCLUSION: DD-induced depression might cause decreased expression of MIF in the heart, resulting in downregulation of MIF-AMPK signaling and a subsequent adverse outcome after a cardiac I/R injury. PMID- 29331701 TI - The use of triiodothyronine (T3) in the treatment of bipolar depression: A review of the literature. AB - BACKGROUND: There is a paucity of treatment options for bipolar depression. The use of triiodothyronine (T3) has been suggested as adjunctive treatment. METHODS: A search on Medline, Limo and ScienceDirect was performed using the search terms bipolar disorder, bipolar depression, treatment resistant, treatment refractory, thyroid hormones, triiodothyronine, T3, acceleration and augmentation. RESULTS: We retrieved three open studies, one comparative study, two double blind and one retrospective chart review. The three open studies observed improvement in respectively 56%, 75% and 79% of patients, the retrospective chart review noted improvement in 89% of cases and the mirror design showed improvement in 66%. In the comparative study T3 performed significantly better than placebo. The only randomized double blind study could not prove any substantial difference between T3 and placebo. LIMITATIONS: Available studies are scarce and flawed. All have (very) low number of subjects: overall, only 353 subjects and only 194 of which in prospective trials. In only two of the prospective trials bipolar patients were analyzed separately. Comparing the studies is hampered by a high variability in assessment tools, baseline medication and degree of treatment-resistance. CONCLUSIONS: The few available studies are small and flawed. They do show promising results. We found many clues suggesting that T3 could augment and accelerate treatment response not only with antidepressants, but also with lithium and perhaps with other treatment options, that it might protect against rapid cycling bipolar disorder, as well as against relapse during the first few years of treatment. PMID- 29331702 TI - Is very low infant birth weight a predictor for a five-year course of depression in parents? A latent growth curve model. AB - BACKGROUND: A very low birth weight (VLBW) is considered as a significant risk factor for early-onset developmental problems in infants, but is also discussed as a potential risk factor for the development of depressive symptoms in affected parents. METHODS: In this study, the 5-year courses of maternal and paternal depression with VLBW and term born infants (n = 250 families) are modeled and predicted by factors existing at the time of birth. RESULTS: The dyadic trajectories of depression could be best described by five classes (I no depression, II minor maternal depression, III increasing dyadic depression, IV significant maternal depression, V highly depressed mothers). VLBW was a significant predictor for the course of parental depression - even under control of preexisting psychiatric disorders and other confounders. Interaction effects and a dose-response relationship were not existent. LIMITATIONS: Class IV and V had to be merged for the prediction analysis, a missing bias could not be ruled out, and families with a low birth weight (between 2500 and 1500g) were not included. CONCLUSIONS: The results are well in line with what is known from studies so far, suggesting that maternal and paternal trajectories of depression show distinctable patterns which are associated with a VLBW. An early screening of mothers and fathers of a VLBW infant seems reasonable to prevent the development of a depression in parents and further difficulties for the child. PMID- 29331703 TI - The effects of vortioxetine on cognitive performance in working patients with major depressive disorder: A short-term, randomized, double-blind, exploratory study. AB - BACKGROUND: Major Depressive Disorder (MDD) is a complex disease characterized by emotional, physical and cognitive symptoms. We explored the efficacy of vortioxetine versus placebo on outcomes of cognition, functioning and mood symptoms in working patients with depression, using paroxetine as an active reference. METHODS: Gainfully employed patients (18-65 years, N = 152) with MDD were randomized 1:1:1 to 8 weeks' double-blind, parallel treatment either with vortioxetine (10mg/day) or paroxetine (20mg/day), or with placebo. The primary efficacy measure was the Digit Symbol Substitution Test (DSST), analyzed using a mixed model for repeated measurements, and the key secondary efficacy measure was the University of San Diego Performance-based Skills Assessment - Brief (UPSA-B), analyzed using analysis of covariance (last observation carried forward). RESULTS: At week 8, DSST and UPSA-B performance had improved relative to baseline in all treatment groups, with no statistically significant differences between treatment groups. While improvements in mood were comparable for vortioxetine and paroxetine, numerical improvements in cognitive performance (DSST) were larger with vortioxetine. Vortioxetine significantly improved overall cognitive performance and clinician-rated functioning relative to placebo. The majority of adverse events were mild or moderate, with nausea being the most common adverse event for vortioxetine. LIMITATIONS: Small sample sizes implied limited statistical power. CONCLUSION: This explorative study showed no significant differences versus placebo in DSST or UPSA-B performance at week 8. However, secondary results support vortioxetine as an effective and well-tolerated antidepressant, supporting an added benefit for cognition and functioning, which could have particular therapeutic relevance for the working patient population. PMID- 29331704 TI - Mindfulness-based interventions for major depressive disorder: A comprehensive meta-analysis of randomized controlled trials. AB - BACKGROUND: This is a meta-analysis of randomized controlled trials (RCTs) of mindfulness-based interventions (MBIs) for a current episode of major depressive disorder. METHODS: Both English (PubMed, PsycINFO, Embase, and Cochrane Library databases) and Chinese (WanFang and CNKI) databases were systematically and independently searched. Standardized mean differences (SMDs) and risk ratio (RR) +/- their 95% confidence intervals (CIs) based on the random effects model were calculated. RESULTS: A total of 11 RCTs with 12 treatment arms (n = 764; MBIs = 363; and control group = 401) were identified and analyzed. Compared to the control group, MDD subjects receiving MBIs showed significant reduction in depressive symptoms (n =722; SMD: -0.59, 95% CI: -1.01 to -0.17, I2 = 85%, p = 0.006) at post-MBIs assessment, but the significance disappeared by the end of posttreatment follow-up. Subgroup analyses revealed that positive benefits of MBIs was associated with studies that had treatment as usual (TAU) control group, Chinese participants, open label design, no gender predominance, subjects younger than 44.4 years, and Jadad score >= 3, other illness phase and MBIs as augmentation group. CONCLUSION: This meta-analysis found that MBIs was associated with reduction of depression severity immediately after MBIs but not at follow up endpoint. Further, the positive effects of MBIs were mainly driven by outlying studies. Higher quality of RCTs with larger samples and longer study duration are needed to confirm the findings. PMID- 29331705 TI - Catechol O-methyltransferase (COMT) functional haplotype is associated with recurrence of affective symptoms: A prospective birth cohort study. AB - BACKGROUND: Catechol-O-methyltransferase (COMT) polymorphisms play an essential role in dopamine availability in the brain. However, there has been no study investigating whether a functional four-SNP (rs6269-rs4633-rs4818-rs4680) haplotype is associated with affective symptoms over the life course. METHODS: We tested this using 2093 members of the Medical Research Council National Survey of Health and Development (MRC NSHD), who had been followed up since birth in 1946, and had data for COMT genotypes, adolescent emotional problems (age 13-15) and at least one measure of adult affective symptoms at ages 36, 43, 53, or 60-64 years. First, differences in the levels of affective symptoms by the functional haplotype using SNPs rs6269, rs4818, and rs4680 were tested in a structural equation model framework. Second, interactions between affective symptoms by COMT haplotype were tested under an additive model. Finally, a quadratic regressor (haplotype2) was used in a curvilinear model, to test for a possible inverted-U trend in affective symptoms according to COMT-related dopamine availability. RESULTS: Women had a significant interaction between COMT haplotypes and adolescent emotional problem on affective symptoms at age 53. Post hoc analysis showed a significant positive association between adolescent emotional problems and affective symptoms at age 53 years in the middle dopamine availability group (valA/valB or met/met; beta = .11, p = .007). For men, no significant interactions were observed. CONCLUSIONS: Combination of the COMT functional haplotype model and inverted-U model may shed light on the effect of dopaminergic regulation on the trajectory of affective symptoms over the life course. PMID- 29331706 TI - The association between adherence and outcome in an Internet intervention for depression. AB - BACKGROUND: Adherence to Internet interventions is often reported to be rather low and this might adversely impact the effectiveness of these interventions. We investigated if patient characteristics are associated with adherence, and if adherence is associated with treatment outcome in a large RCT of an Internet intervention for depression, the EVIDENT trial. METHODS: Patients were randomized to either care as usual (CAU) or CAU plus the Internet intervention Deprexis. A total of 509 participants with mild to moderate depressive symptoms were included in the intervention group and of interest for the present study. We assessed depression symptoms pre and post intervention (12 weeks). Patient characteristics, a self-rating screening for mental disorders, attitudes towards online interventions, and quality of life were assessed before randomization. RESULTS: Adherence in this study was good with on average seven hours of usage time and eight number of sessions spent with the intervention. Some of the patient characteristics (age, sex, depressive symptoms, and confidence in the effectiveness of the program) predicted higher number of sessions in different models (explaining in total between 15 and 25% of variance). Older age (beta = .16) and higher depressive symptoms (beta = .15) were associated with higher usage duration. Higher adherence to the program predicted a greater symptom reduction in depressive symptoms over 12 weeks (number of sessions: beta = .13, usage duration: beta = .14), however, this prediction could mostly be explained by receiving guidance (beta = .27 and .26). LIMITATIONS: Receiving guidance and symptom severity at baseline were confounded since only participants with a moderate symptom severity at baseline received e-mail support. Therefore no firm conclusions can be drawn from the association we observed between baseline symptom severity and usage intensity. CONCLUSIONS: We conclude that older age was associated with adherence and adherence was positively associated with outcome. The effects we have found were small however suggesting that adherence might also be influenced by further variables. PMID- 29331707 TI - The mediation effect of PTSD, perceived job stress and resilience on the relationship between trauma exposure and the development of depression and alcohol use problems in Korean firefighters: A cross-sectional study. AB - BACKGROUND: Firefighters constitute a high-risk group for depression and alcohol use disorders (AUDs) due to frequent exposure to trauma. Perceived job stress and resilience are powerful factors affecting the occurrence of depression and AUDs; however, research on this subject is scarce. METHODS: We investigated the relationship of perceived job stress and resilience with depression or AUDs in firefighters. A total of 7151 Korean firefighters were included for analysis. Participants completed self-report scales, including a self-reported number of exposure to incident stressors, the Korean Occupational Stress Scale - Short Form, the Post-traumatic Stress Disorder (PTSD) Symptoms Checklist - Civilian version, the Patient Health Questionnaire 9, the Brief Resilience Scale, and the Alcohol Use Disorders Identification Test. Hierarchical multivariable linear regression analyses were performed to identify the relationship of perceived job stress and resilience with depression or AUDs. Path analyses were applied to investigate the mediation effects of PTSD, perceived job stress and resilience between trauma exposure and depression or AUDs. RESULTS: There were significant associations of perceived job stress and resilience with depression and AUDs, respectively, even after adjusting for demographic factors, number of traumatic events, and PTSD symptoms. The relationship between trauma exposure and depression/AUDs was mediated by PTSD symptoms, which had both direct and indirect effects on depression and AUDs; indirect effect was mediated by job stress and resilience. CONCLUSIONS: The findings in this study demonstrated that PTSD, perceived job stress and resilience can mediate the development of depression or AUDs following trauma exposure in firefighters. Efforts to prevent PTSD, reduce job stress and increase individual resilience could help prevent depression and AUDs. LIMITATIONS: The cross-sectional study design and self-report nature of the assessment tools limit the current findings. PMID- 29331708 TI - Depression increases subjective stigma of chronic pain. AB - BACKGROUND: Individuals suffering from mental as well as physical conditions often face stigma, which can adversely affect functioning, treatment seeking, and emotional health. We compared levels of stigma experienced by individuals with depression and/or chronic pain, to contrast the perception of stigma experienced by the sufferers with that of individuals who have never experienced these conditions, and to determine whether depression is related to greater experience of stigma for chronic pain. METHODS: Four groups of participants (N=236) took part in the study: depression only, chronic pain only, comorbid depression and chronic pain, and healthy controls. Participants underwent a clinical interview and completed a stigma measure that assessed general self-stigma, public stigma, treatment stigma, secrecy, and stigmatizing experiences. RESULTS: Healthy controls largely underestimated the stigma experienced by individuals with depression, but were not inaccurate in estimating stigma experienced by individuals with chronic pain. Further, individuals with chronic pain alone generally perceived less stigma for their condition than did those with depression alone. However, comorbid individuals perceived worse stigma of chronic pain compared to individuals with chronic pain alone, suggesting that depression may affect the stigma felt by sufferers of conditions other than depression. LIMITATIONS: Social desirability may have influenced stigma scores. Comparing several groups required adapting a standardized instrument. CONCLUSIONS: Results suggest that depression may play a role in the social experience of having a health condition, as well as indicate that the general public continues to fail to appreciate the negative social pressures experienced by individuals with mental health conditions. PMID- 29331709 TI - What do the genetic association data say about the high risk of suicide in people with depression? A novel network-based approach to find common molecular basis for depression and suicidal behavior and related therapeutic targets. AB - BACKGROUND: Available sources indicate that the risk of suicide in people with major depression is higher than other psychiatric disorders. Although it seems that these two conditions may have a shared cause in some cases, no studies have been conducted to identify a common basis for them. METHODS: In this study, following an extensive review of literature, we found almost all the genes that are involved in major depression and suicidal behavior, and we isolated genes shared between the two conditions. Then, we found all physical or functional interactions within three mentioned gene sets and reconstructed three genetic interactive networks. All networks were analyzed topologically and enriched functionally. Finally, using a drug repurposing approach, we found the main available drugs that interacted with the most central genes shared between suicidal behavior and depression. RESULTS: The results demonstrated that BDNF, SLC6A4, CREB1, and TNF are the most fundamental shared genes; and generally, disordered dopaminergic, serotonergic, and immunologic pathways in neuronal projections are the main shared deficient pathways. In addition, we found two genes, SLC6A4 and SLC6A2, to be the main therapeutic targets, and Serotonin Norepinephrine Reuptake Inhibitors (SNRI) and Tricyclic Antidepressants (TCA) to be the most effective drugs for individuals with depression at risk for suicide. CONCLUSIONS: Our results, in addition to shedding light on the integrated molecular basis of depression-suicide, offer new therapeutic targets for individuals with depression at high risk for suicide and could pave the way for future preclinical and clinical studies. However, integrative systems biology based studies highly depend on existing data and related databases, as well as the arrival of new experimental data sources in the future, possibly affecting the current results. PMID- 29331710 TI - Maternal depression and suicide at immediate prenatal and early postpartum periods and psychosocial risk factors. AB - Maternal depression has been intensively explored; however, less attention has been paid to maternal suicide. No studies to date have observed maternal depression and suicide at immediate prenatal and early postpartum stages. In total, 213 Chinese women were recruited in hospitals after they were admitted for childbirth. All completed a short-term longitudinal survey at perinatal stages. Women reported lower depression scores (6.65) and higher suicidal ideation incidence (11.74%) after childbirth. Prenatal depression raised the possibility of prenatal suicidal ideation, while prenatal depression and suicidal ideation increased postpartum depression and suicidal ideation. At immediate prenatal stage, marital satisfaction protected women from depression, while miscarriage experiences and self-esteem increased the risk. At early postpartum stage, in contrast, being first-time mother, marital satisfaction, and harmony with mother in-law prevented them from depression. Our study is among the first to confirm that women have decreased depression but increased suicidal ideation at early postpartum, and a causal relationship between them, which are worthy of public attention. Potential protective (marital satisfaction, being first-time mother, and harmony with mother-in-law) or risk factors (miscarriage experiences and self esteem) of maternal depression and suicidal ideation are identified at perinatal stages. This offers reliable guidance for clinical practice of health care. PMID- 29331711 TI - Omega-3 supplements reduce self-reported physical aggression in healthy adults. AB - There is emerging evidence that Omega-3 polyunsaturated fatty acids (PUFA) supplements can decrease aggression. However, experimental studies with adults from non-specific populations are scarce. We hypothesized that Omega-3 supplements would decrease self-reported aggression among non-clinical participants. In a double-blind randomized trial, two groups of participants (N = 194) aged 18-45 from the general population followed a 6-weeks treatment with 638mg docosahexaenoic acid (DHA) and 772mg eicosapentaenoic acid (EPA) per day or the equivalent quantity of copra oil (placebo). Self-reported aggressiveness was measured at baseline and after the 6-week treatment period. Findings showed that Omega-3 supplements significantly decreased self-reported aggressiveness at the end of the 6-week period (d = 0.31). In conclusion, this experiment indicates that Omega-3 administration has beneficial effects in reducing aggression among the general population. PMID- 29331712 TI - Genetic biomarkers for differential diagnosis of major depressive disorder and bipolar disorder: A systematic and critical review. AB - Depressive symptoms are present in the depressive mood state of bipolar disorder (BPD) and major depression disorder (MDD). Often, in clinical practice, BPD patients are misdiagnosed with MDD. Therefore, genetic biomarkers could contribute to the improvement of differential diagnosis between BPD and MDD. This systematic and critical review aimed to find in literature reliable genetic biomarkers that may show differences between BPD and MDD. This systematic review followed the PRISMA-P method. The terms used to search PubMed, Scopus, PsycINFO, and Web of Science were depress*, bipolar, diagnos*, genetic*, biomark*. After applying the selection criteria, N = 27 studies were selected, being n = 9 about biomarkers for BPD; n = 15, about MDD; and n = 3 for distinguishing MDD from BPD. A total of N = 3086 subjects were assessed in the selected studies (n = 486 in BPD group; n = 1212 in MDD group; and n = 1388, healthy control group). The articles were dated up to June 2017. Of the N = 27 studies, n = 16 assessed gene, n = 1 miRNA, n = 2 lcnRNA and n = 3 protein expressions, n = 4 methylation, and n = 4 polymorphisms. Some studies applied more than one of these genetic analyses. To find reliable genetic biomarkers we have taken into account the methodological care during the studies development and their validity. The genetic biomarkers selected are related to genes that play a fundamental role in synaptic plasticity, neurogenesis, mood control, brain ageing, immune-inflammatory processes and mitochondrial respiratory chain. BDNF gene expression was one of the genetic biomarkers that highlighted because of its capacity of distinguishing BPD and MDD groups, and being adequately reproduced by more than one selected study. PMID- 29331713 TI - Repeated attempted homicide by administration of drugs documented by hair analysis. AB - Attempted murder by repeated poisoning is quite rare. The authors describe the case of a 62-year-old man who was admitted to an intensive care unit (ICU) for neurological disturbances complicated by inhalation pneumopathy. He presented a loss of consciousness while his wife was visiting him at the ICU (H0). Forty eight hours later (H48), police officers apprehended the patient's wife pouring a liquid into his fruit salad at the hospital. Toxicological analyses of a blood sample and the infusion equipment (H0), as well as the fruit salad and its container (H48), confirmed the attempted poisoning with cyamemazine (H0) and hydrochloric acid (H48). In order to evaluate the anteriority of poisonings, hair analysis was requested and the medical records of the 6 previous months were also examined. Two 6-cm brown hair strands were sampled and the victim's medical record was seized in order to determine the treatments he had been given during the previous six months. Segmental hair testing on two 6-cm brown hair was conducted by GC-MS, LC-DAD and LC-MS/MS (0-2/2-4/4-6 cm; pg/mg). Haloperidol (9200/1391/227), amitriptyline (7450/1850/3260), venlafaxine (332/560/260), that had never been part of the victim's treatment were detected, as well as some benzodiazepines (alprazolam, bromazepam, nordazepam); cyamemazine was also detected in all the segments (9960/1610/2367) though only a single dose administration was reported in the medical records. The toxicological analyses performed at H0 and H48 confirmed the homicide attempts in the ICU. In addition, comparison of the results in hair analysis with the medical records confirmed repeated poisoning attempts over the previous six months, and thus explain the origin of the disorders presented by the victim. This case serves to remind us that repeated attempted murder can be difficult to diagnose and that hair analysis can be an effective way to detect such attempts. PMID- 29331714 TI - Stature estimation formulae for Mexican contemporary population: A sample based study of long bones. AB - Stature estimation is an important step to create a biological profile for human identification of unknown individuals in forensic anthropological practice, and it is well known that the long bone length is highly correlated with this feature. The purpose of the present study is to develop formulae for height estimation, based on simple linear regression model for humerus, femur and tibia in Mexican contemporary population. Stature was taken in 56 males and 30 female corpses as well as maximum length of three long bones of the limbs after autopsy following the Menendez et al. (2014) criteria, at the Facultad de Medicina (School of Medicine) of the Universidad Nacional Autonoma de Mexico. Based on this data, equations for each sex and for the three long bones were developed, obtaining a highly significant (p < .001) linear regression models with correlation coefficients of r = 0.820 for female femur and r = 0.855 for male tibia. In this manner, the new formulae provide better and reliable results of stature estimation for the contemporary population of Mexico. PMID- 29331715 TI - Toxicokinetics of Zn and Cd in the earthworm Eisenia andrei exposed to metal contaminated soils under different combinations of air temperature and soil moisture content. AB - This study evaluated how different combinations of air temperature (20 degrees C and 25 degrees C) and soil moisture content (50% and 30% of the soil water holding capacity, WHC), reflecting realistic climate change scenarios, affect the bioaccumulation kinetics of Zn and Cd in the earthworm Eisenia andrei. Earthworms were exposed for 21 d to two metal-contaminated soils (uptake phase), followed by 21 d incubation in non-contaminated soil (elimination phase). Body Zn and Cd concentrations were checked in time and metal uptake (k1) and elimination (k2) rate constants determined; metal bioaccumulation factor (BAF) was calculated as k1/k2. Earthworms showed extremely fast uptake and elimination of Zn, regardless of the exposure level. Climate conditions had no major impacts on the bioaccumulation kinetics of Zn, although a tendency towards lower k1 and k2 values was observed at 25 degrees C + 30% WHC. Earthworm Cd concentrations gradually increased with time upon exposure to metal-contaminated soils, especially at 50% WHC, and remained constant or slowly decreased following transfer to non-contaminated soil. Different combinations of air temperature and soil moisture content changed the bioaccumulation kinetics of Cd, leading to higher k1 and k2 values for earthworms incubated at 25 degrees C + 50% WHC and slower Cd kinetics at 25 degrees C + 30% WHC. This resulted in greater BAFs for Cd at warmer and drier environments which could imply higher toxicity risks but also of transfer of Cd within the food chain under the current global warming perspective. PMID- 29331716 TI - Bioremediation of cadmium- and zinc-contaminated soil using Rhodobacter sphaeroides. AB - Bioremediation using microorganisms is a promising technique to remediate soil contaminated with heavy metals. In this study, Rhodobacter sphaeroides was used to bioremediate soils contaminated with cadmium (Cd) and zinc (Zn). The study found that the treatment reduced the overall bioavailable fractions (e.g., exchangeable and carbonate bound phases) of Cd and Zn. More stable fractions (e.g., Fe-Mn oxide, organic bound, and residual phases (only for Zn)) increased after bioremediation. A wheat seedling experiment revealed that the phytoavailability of Cd was reduced after bioremediation using R. sphaeroides. After bioremediation, the exchangeable phases of Cd and Zn in soil were reduced by as much as 30.7% and 100.0%, respectively; the Cd levels in wheat leaf and root were reduced by as much as 62.3% and 47.2%, respectively. However, when the soils were contaminated with very high levels of Cd and Zn (Cd 54.97-65.33 mg kg 1; Zn 813.4-964.8 mg kg-1), bioremediation effects were not clear. The study also found that R. sphaeroides bioremediation in soil can enhance the Zn/Cd ratio in the harvested wheat leaf and root overall. This indicates potentially favorable application in agronomic practice and biofortification. Although remediation efficiency in highly contaminated soil was not significant, R. sphaeroides may be potentially and practically applied to the bioremediation of soils co contaminated by Cd and Zn. PMID- 29331717 TI - In vitro dermal bioaccessibility of selected metals in contaminated soil and mine tailings and human health risk characterization. AB - Dermal exposure to contaminated sites has generally received less attention than oral/inhalation exposure due to limited exposure scenarios and less perceived potential for toxicity, however, the risk can be significant for specific contaminants and scenarios. The present study aims to (1) measure Cr, Ni, Pb, and Zn contamination in soil and mine tailings samples (n = 7), (2) determine the dermal bioaccessibility of these metals via in vitro tests using two synthetic sweat formulations (EN 1811; NIHS 96-10), and (3) obtain dermal absorbed doses (DADs) for children's and adults' exposure scenarios and compare them to derived dermal reference values. The NIHS 96-10 formulation yielded higher bioaccessibility values for all metals than EN 1811, possibly due to its lower pH. Zn had the highest bioaccessibility for both formulations whereas Cr had the lowest. There was some evidence of adsorption of initially mobilized Pb and Zn to soil with longer test times, resulting in slightly lower bioaccessibility after 8 h of testing with respect to 2 h. The calculated DADs showed that the risk for exposure was acceptable (DAD < derived dermal reference value) for all metals except for Cr(VI) considering exposure to two of the samples. The risk in the case of children's exposure scenario (play on contaminated medium) was significantly higher than the case for the adults' exposure scenario (exposure in industrial context). Additional bioaccessibility research is recommended on additional samples with differing properties/contamination profiles, on additional contaminants with high dermal affinity (especially As), and on the development/validation of in vitro dermal bioaccessibility tests. PMID- 29331718 TI - Partition of Zn, Cd, and Pb during co-combustion of sedum plumbizincicola and sewage sludge. AB - Co-combustion of sedum plumbizincicola and sewage sludge was performed in a tubular furnace. The influence of experimental conditions on the partitioning of Zn, Cd, and Pb was investigated. The results showed that 30% sewage sludge was proposed as the optimal ratio for the co-combustion as a compromise between low calorific value and high amount of heavy metal remained in the bottom ash. High temperature increased the volatilization degree of heavy metals, among which the performance of Cd and Pb was obvious than Zn. Rising oxygen concentration was beneficial to the formation of heavy metal compounds, and the effect of oxygen on Zn was the most pronounced. Thermodynamic equilibrium calculation was carried out to forecast heavy metal compounds. The results demonstrated that Zn, Cd, and Pb mainly generated ZnAl2O4, CdSiO3 and PbSiO3 in solid phase, which are partly confirmed by X-ray diffraction (XRD). The promising results offered a great possibility of heavy metal immobilization, indicating the combustion of Sedum plumbizincicola with sewage sludge is an effective way for waste disposal. PMID- 29331719 TI - Regulated effects of Prorocentrum donghaiense Lu exudate on nickel bioavailability when cultured with different nitrogen sources. AB - Exudates by marine phytoplankton and metals coexist in the seawater, but little is known about their interaction. In this study, cultures of Prorocentrum donghaiense Lu were grown in urea and ammonium, and then exposed to different Ni ion levels in order to study the effects of Ni ions on algal growth. The regulatory mechanisms of P. donghaiense Lu for coping with different Ni ion levels was investigating by characterizing dissolved organic carbon (DOC), carbohydrate and protein content released per cell, hydropathy properties (hydrophilic and hydrophobic fractions) and thiol compounds (cysteine-like or glutathione-like). Lower levels of Ni ions (pNi>10.0) significantly promoted the growth of P. donghaiense Lu when incubated in urea; however, the same was not true for P. donghaiense Lu cultivated in ammonium. An increased presence of hydrophobic fractions and thiol compounds (cysteine-like or glutathione-like compounds) induced by low Ni ions (pNi>10.0) in urea cultures suggest that the activation of cellular mechanisms in response to insufficient Ni ion stress enhances Ni bioavailability. Furthermore, the abundance of carbohydrates and proteins released by cells when exposed to higher Ni ions levels (from pNi = 10.0 to pNi = 8.0) both in urea and ammonium cultures suggests that algal cells may utilize exudate to complex Ni cations and reduce their toxicity. Therefore, it can be speculated that phytoplankton can produce large amounts of specific exudate, which may accelerate the metal bioavailability (insufficient levels) and reduce metal toxicity (excess levels) to maintain an equilibrium with metals in the environment. PMID- 29331720 TI - Temporal-spatial gait parameter models of very slow walking. AB - This study assessed the relationship between walking speed and common temporal spatial stride-parameters to determine if a change in gait strategy occurs at extremely slow walking speeds. Stride-parameter models that represent slow walking can act as a reference for lower extremity exoskeleton and powered orthosis controls since these devices typically operate at walking speeds less than 0.4 m/s. Full-body motion capture data were collected from 30 health adults while walking on a self-paced treadmill, within a CAREN-Extended virtual reality environment. Kinematic data were collected for 0.2-0.8 m/s, and self-selected walking speed. Eight temporal stride-parameters were determined and their relationship to walking speed was assessed using linear and quadratic regression. Stride-length, step-length, and step-frequency were linearly related to walking speed, even at speeds below 0.4 m/s. An inflection point at 0.5 m/s was found for stride-time, step-time, stance-time, and double support time. Equations were defined for each stride-parameter, with equation outputs producing correlations greater than 0.91 with the test data. This inflection point suggests a change in gait strategy at very slow walking speeds favouring greater ground contact time. PMID- 29331721 TI - Understanding protein-drug interactions using ion mobility-mass spectrometry. AB - Ion mobility-mass spectrometry (IM-MS) is an important addition to the analytical toolbox for the structural evaluation of proteins, and is enhancing many areas of biophysical analysis. Disease-associated proteins, including enzymes such as protein kinases, transcription factors exemplified by p53, and intrinsically disordered proteins, including those prone to aggregation, are all amenable to structural analysis by IM-MS. In this review we discuss how this powerful technique can be used to understand protein conformational dynamics and aggregation pathways, and in particular, the effect that small molecules, including clinically-relevant drugs, play in these processes. We also present examples of how IM-MS can be used as a relatively rapid screening strategy to evaluate the mechanisms and conformation-driven aspects of protein:ligand interactions. PMID- 29331722 TI - Effect of vitamin D supplementation on serum sclerostin levels in chronic kidney disease. AB - Vitamin D deficiency, cardiovascular disease and abnormal bone mineral metabolism are common in chronic kidney disease (CKD). Abnormal bone mineral metabolism has been linked to vascular calcification in CKD. Sclerostin has emerged as an important messenger in cross talk between bone-vascular axis. We analyzed sclerostin in subjects who participated in the randomized, double blind, placebo controlled trial investigating the effect of cholecalciferol supplementation on vascular function in non-diabetic CKD stage G3-4 and vitamin D <= 20 ng/ml [CTRI/2013/05/003648]. Patients were randomized (1:1) to receive either two directly observed oral doses of 300,000 IU of cholecalciferol or matching placebo at baseline and 8 weeks. Of the 120 subjects enrolled, 58 in the cholecalciferol group and 59 in the placebo group completed the study. At baseline, serum levels of sclerostin were similar in both groups (cholecalciferol - median;190pg/ml, IQR;140-260 pg/ml and placebo - median;180 pg/ml, IQR; 140-240 pg/ml, p = 0.67). 16 weeks after cholecalciferol supplementation, there was no change in level of sclerostin (mean change;1.10 pg/ml, 95%CI; -27.34 to 29.34 pg/ml, p = 0.25). However, a significant decrease in sclerostin level was noted in the placebo group (mean change; -31.94 pg/ml, 95%CI; -54.76 to -9.13 pg/ml, p = 0.002). Change (Delta) in sclerostin level at 16 weeks correlated negatively with Delta eGFR (r = -0.20, p = 0.03) and positively with Deltauric acid (r = 0.37, p < 0.001) but not with Delta25(OH) D (r = 0.06, p = 0.54), Delta iPTH (r = - 0.03, p = 0.78) DeltaFGF23 (r = - 0.08, p = 0.38) and Delta125 (OH)2 D (r = - 0.04, p = 0.65). In conclusion, high dose cholecalciferol supplementation did not change sclerostin levels in non-diabetic stage 3-4 CKD subjects. PMID- 29331723 TI - Progesterone arrested cell cycle progression through progesterone receptor isoform A in pancreatic neuroendocrine neoplasm. AB - In pancreatic neuroendocrine neoplasms (Pan-NEN) progesterone signaling has been shown to have both inhibitory and stimulatory effects on cell proliferation. The ability of progesterone to inhibit tumor proliferation is of particular interest and is suggested to be mediated through the less abundantly expressed progesterone receptor (PR) isoform A (PRA). To date the mechanistic processes underlying this inhibition of proliferation remain unclear. To examine the mechanism of PRA actions, the human Pan-NEN cell line QGP-1, that endogenously expresses PR isoform B (PRB) without PRA, was transfected with PRA. PRA transfection suppressed the majority of cell cycle related genes increased by progesterone including cyclin A2 (CCNA2), cyclin B1 (CCNB1), cyclin-dependent kinase 1 (CDK1) and cyclin-dependent kinase 2 (CDK2). Importantly, following progesterone administration cell cycle distribution was shifted to S and G2/M phases in the naive cell line but in PRA-transfected cells, this effect was suppressed. To see if these mechanistic insights were confirmed in patient samples PRA, PRB, CCNA2, CCNB, CDK1 and CDK2 immunoreactivities were assessed in Pan-NEN cases. Higher levels of cell cycle markers were associated with higher WHO grade tumors and correlations between the markers suggested formation of cyclin/CDK activated complexes in S and G2/M phases. PRA expression was associated with inverse correlation of all cell cycle markers. Collectively, these results indicate that progesterone signals through PRA negatively regulates cell cycle progression through suppressing S and G2/M phases and downregulation of cell cycle phases specific cyclins/CDKs. PMID- 29331724 TI - Diminution of arsenic accumulation in rice seedlings co-cultured with Anabaena sp.: Modulation in the expression of lower silicon transporters, two nitrogen dependent genes and lowering of antioxidants activity. AB - The present study was intended to investigate the role of algae, Anabaena sp. in the amelioration of As toxicity, when co-cultured with rice seedlings. The reduction of growth in rice seedlings against As(III) and As(V) was recovered with Anabaena sp. The Anabaena sp. also reduced the accumulation of As, where it was more efficient against 60uM As(III) (49%) than As(V) (23%) in rice shoot. Similarly, with reduction of As accumulation, lower silicon transporters (Lsi-1 and Lsi-2) was found to be suppressed against As treatments. However, the expression of two nitrogen dependent genes i.e., NR and SAMT were found to be enhanced with the Anabaena sp. Likewise, the activity of antioxidant enzyme, GST, was enhanced, whereas, the activity of other enzymes such as SOD, APX, GPX, GR and DHAR were decreased with As+Algae combinations. Overall, the result suggested that the Anabaena sp. reduces As accumulation, modulates gene expressions and antioxidants to ameliorate the As toxicity in Oryza sativa L. PMID- 29331725 TI - BiVO4 /N-rGO nano composites as highly efficient visible active photocatalyst for the degradation of dyes and antibiotics in eco system. AB - Herein, we report the synthesis of novel nitrogen doped reduced graphene oxide/ BiVO4 photo catalyst by single step hydrothermal method. The physicochemical properties of the catalysts were characterized using XRD, N2 adsorption desorption, Raman, XPS, SEM TEM, DRS-UV and EIS techniques. The synthesized catalysts were tested for their catalytic activity in the photo degradation of some harmful textile dyes (methylene blue & congo red) and antibiotics (metronidazole and chloramphenicol) under visible light irradiation. Reduced charge recombination and enhanced photocatalytic activity were observed due to the concerted effect between BiVO4 and nitrogen-rGO. The degradation efficiency of BiVO4/N-rGO in the degradation of CR and MB was remarkably high i.e 95% and 98% under visible light irradiation. Similarly 95% of MTZ and 93% of CAP were degraded under visible light irradiation. HPLC studies implied that both the dyes and antibiotics were degraded to the maximum extent. The plausible photocatalytic mechanism on the basis of experimental results was suggested. PMID- 29331726 TI - Impact of the start-up process on the microbial communities in biocathodes for electrosynthesis. AB - This study seeks to understand how the bacterial communities that develop on biocathodes are influenced by inocula diversity and electrode potential during start-up. Two different inocula are used: one from a highly diverse environment (river mud) and the other from a low diverse milieu (anaerobic digestion). In addition, both inocula were subjected to two different polarising voltages: oxidative (+0.2 V vs. Ag/AgCl) and reductive (-0.8 V vs. Ag/AgCl). Bacterial communities were analysed by means of high throughput sequencing. Possible syntrophic interactions and competitions between archaea and eubacteria were described together with a discussion of their potential role in product formation and current production. The results confirmed that reductive potentials lead to an inconsistent start-up procedure regardless of the inoculum used. However, imposing oxidative potentials help to quickly develop an electroactive biofilm ready to withstand reductive potentials (i.e. biocathodic operation). The microbial structure that finally developed on them was highly dependent on the raw community present in the inoculum. Using a non-specialised inoculum resulted in a highly specialised biofilm, which was accompanied by an improved performance in terms of consumed current and product generation. Interestingly, a much more specialised inoculum promoted a rediversification in the biofilm, with a lower general cell performance. PMID- 29331728 TI - The effect of bioadhesive on the interfacial compatibility and pervaporation performance of composite membranes by MD and GCMC simulation. AB - Combing molecular dynamics (MD) and Grand Canonical Monte Carlo (GCMC) simulation, the effect of bioadhesive transition layer on the interfacial compatibility of the pervaporation composite membranes, and the pervaporation performance toward penetrant molecules were investigated. In our previous experimental study, the structural stability and permeability selectivity of the composite membranes were considerably enhanced by the introduction of bioadhesive carbopol (CP). In the present study, the interfacial compatibility and the interfacial energies between the chitosan (CS) separation layer, CP transition layer and the support layer were investigated, respectively. The mobility of polymer chains, free volume in bulk and interface regions were evaluated by the mean-square displacement (MSD) and free volume voids (FFV) analysis. The diffusion and sorption behavior of water/ethanol molecules in bulk and interface regions were characterized. The simulation results of membrane structure have good consistency, indicating that the introduction of CP transition layer improved the interfacial compatibility and interaction between the separation layer and the support layer. Comparing the bulk region of the separation layer, the mobility and free volume of the polymer chain in the interface region decreased and thus reduced the swelling of CS active layer, revealing the increased diffusion selectivity toward the permeated water and ethanol molecules. The strong hydrogen bonds interaction between the COOH of the CP transition layer and water molecules increased the adsorption of water molecules in the interface region. The simulation results were quite consistent with the experimental results. PMID- 29331729 TI - Strong CH/O interactions between polycyclic aromatic hydrocarbons and water: Influence of aromatic system size. AB - Energies of CH/O interactions between water molecule and polycyclic aromatic hydrocarbons with a different number of aromatic rings were calculated using ab initio calculations at MP2/cc-PVTZ level. Results show that an additional aromatic ring in structure of polycyclic aromatic hydrocarbons significantly strengthens CH/O interactions. Calculated interaction energies in optimized structures of the most stable tetracene/water complex is -2.27 kcal/mol, anthracene/water is -2.13 kcal/mol and naphthalene/water is -1.97 kcal/mol. These interactions are stronger than CH/O contacts in benzene/water complex (-1.44 kcal/mol) while CH/O contacts in tetracene/water complex are even stronger than CH/O contacts in pyridine/water complexes (-2.21 kcal/mol). Electrostatic potential maps for different polycyclic aromatic hydrocarbons were calculated and used to explain trends in the energies of interactions. PMID- 29331727 TI - Individual variation in working memory is associated with fear extinction performance. AB - PTSD has been associated consistently with abnormalities in fear acquisition and extinction learning and retention. Fear acquisition refers to learning to discriminate between threat and safety cues. Extinction learning reflects the formation of a new inhibitory-memory that competes with a previously learned threat-related memory. Adjudicating the competition between threat memory and the new inhibitory memory during extinction may rely, in part, on cognitive processes such as working memory (WM). Despite significant shared neural circuits and signaling pathways the relationship between WM, fear acquisition, and extinction is poorly understood. Here, we analyzed data from a large sample of healthy Marines who underwent an assessment battery including tests of fear acquisition, extinction learning, and WM (N-back). Fear potentiated startle (FPS), fear expectancy ratings, and self-reported anxiety served as the primary dependent variables. High WM ability (N = 192) was associated with greater CS + fear inhibition during the late block of extinction and greater US expectancy change during extinction learning compared to individuals with low WM ability (N = 204). WM ability was not associated with magnitude of fear conditioning/expression. Attention ability was unrelated to fear acquisition or extinction supporting specificity of WM associations with extinction. These results support the conclusion that individual differences in WM may contribute to regulating fear responses. PMID- 29331730 TI - Exenatide exerts cognitive effects by modulating the BDNF-TrkB neurotrophic axis in adult mice. AB - Modulation of insulin-dependent signaling is emerging as a valuable therapeutic tool to target neurodegeneration. In the brain, the activation of insulin receptors promotes cell growth, neuronal repair, and protection. Altered brain insulin signaling participates in the cognitive decline seen in Alzheimer's disease patients and the aging brain. Glucagon-like peptide-1 (GLP-1) regulates insulin secretion and, along with GLP-1 analogues, enhances neurotrophic signaling and counteracts cognitive deficits in preclinical models of neurodegeneration. Moreover, recent evidence indicates that GLP-1 modulates the activity of the brain-derived neurotrophic factor (BDNF). In this study, in adult wild-type mice, here employed as a model of mid-life brain aging, we evaluated the effects of a 2-month treatment with exenatide, a GLP-1 analogue. We found that exenatide promotes the enhancement of long-term memory performances. Biochemical and imaging analyses show that the drug promotes the activation of the BDNF-TrkB neurotrophic axis and inhibits apoptosis by decreasing p75NTR mediated signaling. The study provides preclinical evidence for the use of exenatide to delay age-dependent cognitive decline. PMID- 29331731 TI - Deoxynivalenol, gut microbiota and immunotoxicity: A potential approach? AB - Deoxynivalenol (DON, vomitoxin) is the most frequent mycotoxin in grains and grain products. DON contamination in fodder and food is a serious threat for health, since it impairs the immune and gastrointestinal systems of both human and animals. Gut microbiota seems to play a more and more important part in human and animals' health according to related researches. Previous studies implied some associations among gut microbiota, DON and immune system. For example, DON affects immune system as well as the composition and abundance of gut microbiota, and the latter influences immune system as well. In the present short review, we not only provide the available information about the toxic consequences of DON induced immunotoxicity on different animals and cell lines and discuss its main possible molecule mechanisms, but also summarize research results concerning the role of gut microbiota in DON-induced immunotoxicity and gender differences, with the aim to find some potential therapeutic strategies to tackle DON-induced immunotoxicity. PMID- 29331732 TI - Computational toxicology: From cheminformatics to nanoinformatics. PMID- 29331733 TI - Aronia melanocarpa fruit juice ameliorates the symptoms of inflammatory bowel disease in TNBS-induced colitis in rats. AB - Trinitrobenzensulfonic acid (TNBS) is commonly used to induce an experimental inflammatory bowel disease (IBD) model. Oxidative stress and inflammation have been proposed as mechanisms underlying the pathophysiology of IBD. Aronia melanocarpa fruit juice (AMFJ) is extremely rich in polyphenolic substances, mainly proanthocyanidins, flavonoids and phenolic acids. The aim of this study was to evaluate the effect of AMFJ in a rat TNBSinduced colitis model and to compare the effect of the juice with that of sulfasalazine. Colitis was induced by TNBS in male Wistar rats. After the induction of colitis, AMFJ at three doses (2.5, 5 and 10 mL/kg) and sulfasalazine (400 mg/kg) were administered orally till the 14th experimental day. Severity of colitis was assessed by macroscopic and histopathological criteria. Oxidative stress was evaluated by the concentration of thiobarbituric acid reactive substances (TBARS). TNBS caused severe colonic damage. AMFJ dose-dependently ameliorated TNBS-induced colitis. It improved the macroscopic and microscopic signs of colitis, and prevented the increase of colonic TBARS concentrations. Regarding different indices, the effect of AMFJ was comparable or even higher than that of sulfasalazine. In conclusion, the ameliorative effects of AMFJ in the experimental TNBSinduced colitis might be the result of its potent antioxidant and antiinflammatory properties. PMID- 29331734 TI - In vitro assessment of silver nanoparticles immunotoxicity. AB - This study aimed to characterize unwanted immune effects of nanoparticles (NP) using THP-1 cells, human whole blood and enriched peripheral blood monocytes. Commercially available silver NP (AgNP < 100 nm, also confirmed by Single Particle Extinction and Scattering) were used as prototypical NP. Cells were treated with AgNP alone or in combination with classical immune stimuli (i.e. LPS, PHA, PWM) and cytokine assessed; in addition, CD54 and CD86 expression was evaluated in THP-1 cells. AgNP alone induced dose-related IL-8 production in all models, with higher response observed in THP-1 cells, possibly connected to different protein corona formation in bovine versus human serum. AgNP potentiated LPS-induced IL-8 and TNF-alpha, but not LPS-induced IL-10. AgNP alone induced slight increase in IL-4, and no change in IFN-gamma production. While responses to PHA in term of IL-4 and IFN-gamma production were not affected, increased PWM induced IL-4 and IFN-gamma production were observed, suggesting potentiation of humoral response. Reduction in PHA-induced IL-10 was observed. Overall, results indicate immunostimulatory effects. THP-1 cells work as well as primary cells, representing a useful and practical alternative, with the awareness that from a physiological point of view the whole blood assay is the one that comes closest to reality. PMID- 29331735 TI - Internal exposure-based pharmacokinetic evaluation of potential for biopersistence of 6:2 fluorotelomer alcohol (FTOH) and its metabolites. AB - Polyfluorinated compounds (PFCs) are authorized for use as greaseproofing agents in food contact paper. As C8-PFCs (8-carbons) are known to accumulate in tissues, shorter-chain C6-PFCs (6-carbons) have replaced C8-PFCs in many food contact applications. However, the potential of C6-PFCs for human biopersistence has not been fully evaluated. For the first time, we provide internal exposure estimates to key metabolites of 6:2 fluorotelomer alcohol (6:2 FTOH), a monomeric component of C6-PFCs, to extend our understanding of exposure beyond estimates of external exposure. Pharmacokinetic data from published rat and human studies on 6:2 FTOH were used to estimate clearance and area under the curve (AUC) for its metabolites: 5:3 fluorotelomer carboxylic acid (5:3 A), perfluorohexanoic acid (PFHxA) and perfluoroheptanoic acid (PFHpA). Internal exposure to 5:3 A was the highest of evaluated metabolites across species and it had the slowest clearance. Additionally, 5:3 A clearance decreased with increasing 6:2 FTOH exposure. Our analysis provides insight into association of increased internal 5:3 A exposure with high biopersistence potential of 6:2 FTOH. Our results identify 5:3 A as an important biomarker of internal 6:2 FTOH exposure for use in biomonitoring studies, and are potentially useful for toxicological assessment of chronic dietary 6:2 FTOH exposure. PMID- 29331737 TI - Hematology reference intervals for neonatal Holstein calves. AB - Data regarding hematologic reference intervals (RI) for neonatal calves have not been published yet. The aims of this study were: a) to establish hematology RIs for neonatal Holstein calves, b) to compare them with the RIs for lactating cows, and c) to investigate the relationship of age and gender with the hematologic profile of calves. Two-hundred and fifty-four clinically healthy Holstein calves (1-9days old, from 30 farms) and 82 healthy Holstein cows (between 30 and 150days in milk, from 10 farms) were blood sampled once for a complete blood count evaluation, using the ADVIA 120 hematology analyzer. An additional blood sample was collected from each calf for serum total protein concentration measurement. RIs and age-related RIs were calculated with the Reference Value Advisor freeware. Comparisons between calves and cows and between male and female calves were performed with t-test or Mann-Whitney test. Red blood cell count (RBC), white blood cell count (WBC), neutrophil, lymphocyte and platelet counts in calves were higher, while mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH) and mean corpuscular hemoglobin concentration (MCHC) were lower than in cows. Lymphocyte and platelets showed a notable increase through age. Finally, female calves had higher RBC, hematocrit and hemoglobin concentration than males. Age-specific RIs should be used for the interpretation of the complete blood count in Holstein calves. PMID- 29331738 TI - Recent advances in neural dust: towards a neural interface platform. AB - The neural dust platform uses ultrasonic power and communication to enable a scalable, wireless, and batteryless system for interfacing with the nervous system. Ultrasound offers several advantages over alternative wireless approaches, including a safe method for powering and communicating with sub mm sized devices implanted deep in tissue. Early studies demonstrated that neural dust motes could wirelessly transmit high-fidelity electrophysiological data in vivo, and that theoretically, this system could be miniaturized well below the mm scale. Future developments are focused on further minimization of the platform, better encapsulation methods as a path towards truly chronic neural interfaces, improved delivery mechanisms, stimulation capabilities, and finally refinements to enable deployment of neural dust in the central nervous system. PMID- 29331739 TI - Determination of atomic-scale chemical composition at semiconductor heteroepitaxial interfaces by high-resolution transmission electron microscopy. AB - The determination of atomic structures and further quantitative information such as chemical compositions at atomic scale for semiconductor defects or heteroepitaxial interfaces can provide direct evidence to understand their formation, modification, and/or effects on the properties of semiconductor films. The commonly used method, high-resolution transmission electron microscopy (HRTEM), suffers from difficulty in acquiring images that correctly show the crystal structure at atomic resolution, because of the limitation in microscope resolution or deviation from the Scherzer-defocus conditions. In this study, an image processing method, image deconvolution, was used to achieve atomic resolution (~1.0 A) structure images of small lattice-mismatch (~1.0%) AlN/6H-SiC (0001) and large lattice-mismatch (~8.5%) AlSb/GaAs (001) heteroepitaxial interfaces using simulated HRTEM images of a conventional 300-kV field-emission gun transmission electron microscope under non-Scherzer-defocus conditions. Then, atomic-scale chemical compositions at the interface were determined for the atomic intermixing and Lomer dislocation with an atomic step by analyzing the deconvoluted image contrast. Furthermore, the effect of dynamical scattering on contrast analysis was also evaluated for differently weighted atomic columns in the compositions. PMID- 29331736 TI - Dysfunctional telomeres and hematological disorders. AB - Telomere biology disorders, which are characterized by telomerase activity haploinsufficiency and accelerated telomere shortening, most commonly manifest as degenerative diseases. Tissues with high rates of cell turnover, such as those in the hematopoietic system, are particularly vulnerable to defects in telomere maintenance genes that eventually culminate in bone marrow (BM) failure syndromes, in which the BM cannot produce sufficient new blood cells. Here, we review how telomere defects induce degenerative phenotypes across multiple organs, with particular focus on how they impact the hematopoietic stem and progenitor compartment and affect hematopoietic stem cell (HSC) self-renewal and differentiation. We also discuss how both the increased risk of myelodysplastic syndromes and other hematological malignancies that is associated with telomere disorders and the discovery of cancer-associated somatic mutations in the shelterin components challenge the conventional interpretation that telomere defects are cancer-protective rather than cancer-promoting. PMID- 29331740 TI - Development and validation of a new population-based simulation model of osteoarthritis in New Zealand. AB - OBJECTIVE: To describe the construction and preliminary validation of a new population-based microsimulation model developed to analyse the health and economic burden and cost-effectiveness of treatments for knee osteoarthritis (OA) in New Zealand (NZ). METHOD: We developed the New Zealand Management of Osteoarthritis (NZ-MOA) model, a discrete-time state-transition microsimulation model of the natural history of radiographic knee OA. In this article, we report on the model structure, derivation of input data, validation of baseline model parameters against external data sources, and validation of model outputs by comparison of the predicted population health loss with previous estimates. RESULTS: The NZ-MOA model simulates both the structural progression of radiographic knee OA and the stochastic development of multiple disease symptoms. Input parameters were sourced from NZ population-based data where possible, and from international sources where NZ-specific data were not available. The predicted distributions of structural OA severity and health utility detriments associated with OA were externally validated against other sources of evidence, and uncertainty resulting from key input parameters was quantified. The resulting lifetime and current population health-loss burden was consistent with estimates of previous studies. CONCLUSION: The new NZ-MOA model provides reliable estimates of the health loss associated with knee OA in the NZ population. The model structure is suitable for analysis of the effects of a range of potential treatments, and will be used in future work to evaluate the cost-effectiveness of recommended interventions within the NZ healthcare system. PMID- 29331742 TI - A sensitive and selective immunoaffinity column clean up coupled to UPLC-MS/MS for determination of trace methyl-3-quinoxaline-2-carboxylic acid in animal tissues. AB - This paper described a reliable and simple method for the selective determination of MQCA in animal tissues using ultra high performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS). A highly targeted immunoaffinity column was used for sample purification after enzymatic hydrolysis. The purified extracts were analyzed by reversed-phase HPLC-MS/MS in positive ESI and multiple reaction monitoring mode. The calibration curves showed good linearity with correlation coefficient (r2) larger than 0.995. The average recoveries at the spiked levels of 0.5, 2.0 and 20MUgkg-1 were 90.2% to 103.5% with intra-day and inter-day relatives standard deviations (RSD, n=6) ranging from 1.8% to 6.7% and 3.5% to 7.6% respectively. The limit of quantification (LOQ) was 0.5MUgkg-1, which can fulfil the maximum residue level (MRL) of 4.0MUgkg-1 stipulated by the Agricultural Minister of China and the requirement of the confirmatory criteria according to the European Commission Decision 2002/657/EC. The method is sensitive, accurate, convenient and rapid, and has been successfully applied in real samples. PMID- 29331743 TI - Preliminary investigation of human exhaled breath for tuberculosis diagnosis by multidimensional gas chromatography - Time of flight mass spectrometry and machine learning. AB - Tuberculosis (TB) remains a global public health malady that claims almost 1.8 million lives annually. Diagnosis of TB represents perhaps one of the most challenging aspects of tuberculosis control. Gold standards for diagnosis of active TB (culture and nucleic acid amplification) are sputum-dependent, however, in up to a third of TB cases, an adequate biological sputum sample is not readily available. The analysis of exhaled breath, as an alternative to sputum-dependent tests, has the potential to provide a simple, fast, and non-invasive, and ready available diagnostic service that could positively change TB detection. Human breath has been evaluated in the setting of active tuberculosis using thermal desorption-comprehensive two-dimensional gas chromatography-time of flight mass spectrometry methodology. From the entire spectrum of volatile metabolites in breath, three random forest machine learning models were applied leading to the generation of a panel of 46 breath features. The twenty-two common features within each random forest model used were selected as a set that could distinguish subjects with confirmed pulmonary M. tuberculosis infection and people with other pathologies than TB. PMID- 29331741 TI - Extracellular acidification induces ROS- and mPTP-mediated death in HEK293 cells. AB - The extracellular pH (pHe) is a key determinant of the cellular (micro)environment and needs to be maintained within strict boundaries to allow normal cell function. Here we used HEK293 cells to study the effects of pHe acidification (24h), induced by mitochondrial inhibitors (rotenone, antimycin A) and/or extracellular HCl addition. Lowering pHe from 7.2 to 5.8 reduced cell viability by 70% and was paralleled by a decrease in cytosolic pH (pHc), hyperpolarization of the mitochondrial membrane potential (Deltapsi), increased levels of hydroethidine-oxidizing ROS and stimulation of protein carbonylation. Co-treatment with the antioxidant alpha-tocopherol, the mitochondrial permeability transition pore (mPTP) desensitizer cyclosporin A and Necrostatin-1, a combined inhibitor of Receptor-interacting serine/threonine-protein kinase 1 (RIPK1) and Indoleamine 2,3-dioxygenase (IDO), prevented acidification-induced cell death. In contrast, the caspase inhibitor zVAD.fmk and the ferroptosis inhibitor Ferrostatin-1 were ineffective. We conclude that extracellular acidification induces necroptotic cell death in HEK293 cells and that the latter involves intracellular acidification, mitochondrial functional impairment, increased ROS levels, mPTP opening and protein carbonylation. These findings suggest that acidosis of the extracellular environment (as observed in mitochondrial disorders, ischemia, acute inflammation and cancer) can induce cell death via a ROS- and mPTP opening-mediated pathogenic mechanism. PMID- 29331744 TI - Urinary metabolomics study the mechanism of Taohong Siwu Decoction intervention in acute blood stasis model rats based on liquid chromatography coupled to quadrupole time-of-flight mass spectrometry. AB - Taohong Siwu Decoction (TSD) is a classic prescription in traditional Chinese medicine and is widely used to promote blood circulation to remove blood stasis. However, the effect mechanisms are not yet well understood. Here, a urinary metabolomic approach based on liquid chromatography coupled to quadrupole time-of flight mass spectrometry (LC/Q-TOF-MS) was conducted to explore the changes in the endogenous metabolites and to assess the integral efficacy of TSD on acute blood stasis model rats. Then, parameters for hemorheology and coagulation functions were detected. Principal component analysis (PCA) and orthogonal partial least squares discriminate analysis (OPLS-DA) was used to investigate the global metabolite alterations and to evaluate the preventive effects of TSD in rats. Potential metabolite markers were found using OPLS-DA and t-test. Furthermore, metabolic pathway analysis was performed to construct metabolic networks. The results showed that TSD could significantly decrease whole blood viscosity and plasma viscosity. It also significantly prolonged partial thromboplastin time (APPT) and prothrombin time (PT), increased thrombin time (TT) and lowered fibrinogen content (FIB). Moreover, 24 potential metabolite markers of acute blood stasis were screened, and the levels were all reversed to different degrees after TSD administration. In metabolic networks, amino acid metabolism (arginine and proline metabolism; histidine metabolism; alanine, aspartate, and glutamate metabolism; phenylalanine, tyrosine, and tryptophan biosynthesis; phenylalanine metabolism) and lipid metabolism (glycerophospholipid metabolism; linoleic acid metabolism; alpha-linolenic acid metabolism) were closely related with the intervention mechanism of TSD on acute blood stasis. The urinary metabolomic approach can be applied to clarify the mechanism of TSD in promoting blood circulation to remove acute blood stasis and to provide the theoretical basis for further research on the therapeutic mechanism of TSD in clinical practice. PMID- 29331745 TI - Tumefactive Multiple Sclerosis Masquerading as High Grade Glioma. AB - Tumefactive multiple sclerosis is a demyelinating lesion that can radiographically mimic high-grade gliomas during acute episodes, thus affecting clinical decision making. A delay in appropriate diagnoses can result in unnecessary invasive resections. The following case is a patient with unilateral weakness and radiologic findings that were concerning for a high-grade glioma. Peripheral studies were equivocal. The decision was made to proceed with a stereotactic biopsy, yielding a definitive diagnosis of tumefactive demyelinating lesion (TDL). The patient responded robustly to medical management and made a full clinical recovery. While TDLs and gliomas may look radiologically identical during acute demyelinating episodes, unlike gliomas, TDLs will demonstrate evolvement over serial imaging and robust clinical response to high dose steroids. Clinicians should proceed with caution when considering invasive procedures with such lesions. Conservative medical management is often sufficient as seen in this patient. This case highlights the importance of timely diagnosis and management of TDLs. PMID- 29331746 TI - Canadian Neurosurgery Educators' Views on Stereotactic Radiosurgery in Residency Training. AB - OBJECTIVE: Despite the increasing prominence of stereotactic radiosurgery (SRS) in treating intracranial and spinal pathologies, there is currently a dearth of exposure to this modality in the neurosurgical residency. To address this gap, the aim of this study is to assess neurosurgery educators' views regarding the current state of SRS exposure, and to identify potential approaches to improve residency education in this domain. METHODS: Qualitative thematic analysis and constructivist grounded theory methodology were employed. Semistructured telephone-based interviews were conducted with current or past residency program directors, as well as current departmental chairs across neurosurgical departments in Canada. Interviews were transcribed and subjected to thematic analysis using open and axial coding. RESULTS: Of the 34 eligible participants, the overall response rate was 41.1% (14/34), with a 35.3% participation rate (12/34). Participants represented 9 of the 12 Canadian institutions surveyed. The majority of participants were current program directors (n = 8), followed by past program directors (n = 2), and departmental chairs (n = 2). Most respondents 75% (9/12) view an increasing role for SRS in neurosurgery. Unanimously, respondents endorse greater exposure to SRS during residency through formal residency rotations and engagement in interdisciplinary tumor boards to facilitate involvement in clinical decision-making. CONCLUSIONS: This is the first study to systematically collate neurosurgery educators' views on SRS in residency in Canada and demonstrates recognition of the discordance between SRS in practice and residency training. Neurosurgery educators broadly endorse increased exposure to this modality. Future work is needed to delineate the requirements necessary to achieve adequate competency in SRS. PMID- 29331747 TI - Dural-Based Cavernous Malformation at the Cerebral Convexity: Report of Two Pediatric Patients. AB - BACKGROUND: Intracranial cavernous malformations (CMs) are usually located at the cerebral parenchyma; dural-based CMs outside the middle fossa are rarely reported. To our knowledge, dural-based CMs located at the cerebral convexity are even rarer in that only 2 pediatric cases have ever been reported. In this report, we present 2 extremely rare cases of dural-based CMs at the cerebral convexity in pediatric patients. The clinical course, radiologic and pathologic features, treatment, and follow-up are described. CASE DESCRIPTION: The first case is a 6-year-old boy who presented with headache and vomiting and was found to have an acute subdural hematoma and space-occupying lesion. Intraoperative findings and histologic examination were consistent with a CM. He experienced an uneventful postoperative recovery. The second case is a 43-day-old female neonate who presented with a progressively enlarging neoplasm at the right occipital region since birth. Computed tomography of the head performed at admission showed a slight hyperdense occupying lesion communicating between the intra- and extracranial cavity through a skull defect. The lesion was resected en bloc and histologic examination was in accord with a CM. CONCLUSIONS: The clinical manifestations and radiologic characteristics of dural-based CMs are nonspecific. Unlike that of their cerebral parenchymal counterparts, the radiologic appearance of dural-based CMs is confusing and misleading. Surgical resection is the primary treatment selection for dural-based CMs. In cases with no close relationship to dural sinuses, complete surgical resection with minimal blood loss and few neurologic deficits could be easily achieved. PMID- 29331748 TI - Safety and efficacy of anti-programmed death 1 antibodies in patients with cancer and pre-existing autoimmune or inflammatory disease. AB - OBJECTIVE: Patients with autoimmune or inflammatory disease (AID) are susceptible to immune-related adverse events (irAEs) when treated with immune check-point inhibitors (ICIs). We decided to analyse the safety and effectiveness of anti-PD 1 antibodies in AID patients and look for an association between the presence of pre-existing AID and the clinical outcome. METHODS: In a prospective study of the REISAMIC registry of grade >=2 irAEs occurring in ICI-treated patients, we studied the associations between pre-existing AID on one hand and irAE-free survival, overall survival and best objective response rate on the other. RESULTS: We identified 45 patients with 53 AIDs in REISAMIC. The cancer diagnoses included melanoma (n = 36), non-small-cell lung cancer (n = 6) and others (n = 3). The most frequent pre-existing AIDs were vitiligo (n = 17), psoriasis (n = 12), thyroiditis (n = 7), Sjogren syndrome (n = 4) and rheumatoid arthritis (n = 2). Twenty patients (44.4%) presented with at least one irAE: eleven of these were associated with a pre-existing AID ('AID flare'). Treatment with anti-PD-1 antibodies was maintained in 15 of the 20 patients with an irAE. The IrAE-free survival time was significantly shorter in AID patients (median: 5.4 months) than in AID-free patients (median: 13 months, p = 2.1 * 10-4). The AID and AID-free groups did not differ significantly with regard to the overall survival time and objective response rate (p = 0.38 and 0.098, respectively). CONCLUSION: In patients treated with anti-PD-1 antibody, pre-existing AID was associated with a significantly increased risk of irAEs. Our results indicate that cancer treatments with anti-PD-1 antibodies are just as effective in AID patients as they are in AID-free patients. PMID- 29331749 TI - Paediatric dysgerminoma: Results of three consecutive French germ cell tumours clinical studies (TGM-85/90/95) with late effects study. AB - METHODS: French patients (<=18years) treated for dysgerminoma between 1985 and 2005 in TGM-85, 90, 95 protocols were included. Treatment was based on primary unilateral oophorectomy followed by prophylactic lymph node irradiation (1985 1998) or a wait-and-see strategy (1998-2005) for localised completely resected tumours (pS1) or by platinum-based chemotherapy for advanced diseases. RESULTS: Forty-eight patients (median age 12.8 years) were included. Six patients had gonadal dysgenesis. Two had bilateral dysgerminoma. Twenty-eight patients had loco-regional dissemination, seven with para-aortic lymph nodes. None had distant metastases. Primary surgery was performed in 47/48 patients. Among the 15 patients with pS1 tumour: seven did not receive adjuvant treatment, six had lymph node irradiation and two received chemotherapy. Among the 32 patients with advanced tumour, 31 received cisplatinum-based (n = 25) or carboplatin-based (n = 8) regimen with lymph node irradiation for one of them and one did not receive adjuvant treatment. With a median follow-up of 14 years, all patients are alive in complete remission. Five events occurred: 2 contralateral dysgerminomas, 1 peritoneal relapse and 2 second neoplasms (teratoma and melanoma). Bilateral oophorectomy was necessary for 12 patients. Desire of pregnancy was expressed for 17/36 patients with unilateral oophorectomy, which succeeded in 13 cases (5 medically assisted). 2/17 had ovarian failure. The renal function was normal in 24/25 evaluated patients treated with platinum, ifosfamide or irradiation. The hearing function was evaluated on 17/36 patients treated with platinum: 12 Brock grade-0, 3 brock grade-1 and 2 grade-4. CONCLUSION: Dysgerminoma has an excellent prognosis even in advanced cases with conservative surgery and platinum-based chemotherapy. However the disease and/or treatment resulted in a high rate of bilateral oophorectomies and a significant impact on future fertility. PMID- 29331750 TI - Phosphoinositide 3-kinase inhibitors in advanced breast cancer: A systematic review and meta-analysis. AB - Phosphoinositide 3-kinase (PI3K) inhibitors may overcome drug resistance and improve advanced breast cancer (ABC) outcomes. We conducted a systematic review and meta-analysis to assess the efficacy and safety of adding a PI3K inhibitor to the standard of care (SOC) treatment in ABC. The electronic databases Ovid, PubMed, Cochrane Central Register of Controlled Trials and Embase, were searched for relevant randomised trials. Pooled hazard ratios (HRs) for progression-free survival (PFS) and pooled risk ratios (RRs) for objective response rates (ORRs), disease control rates (DCRs) and toxicity were meta-analysed using the Mantel Haenszel method and generic inverse variance. Five studies were included. In unselected patients, the addition of a PI3K inhibitor decreased the risk of progression by 21% (2329 participants, HR = 0.79; 95% confidence interval [CI], 0.71-0.88). A marginal improvement in ORR (2329 participants, RR = 1.26; 95% CI, 1.01-1.57) and no improvement in DCR (2146 participants, RR = 1.05; 95% CI, 0.94 1.18) were achieved with a significant increase in toxicity of any grade (2386 participants, RR = 1.05; 95% CI, 1.03-1.06) and of grade III and higher (2386 participants, RR = 1.91; 95% CI, 1.76-2.08). A PFS benefit was seen in patients with and without PI3K pathway activation assessed on tumour and only in patients with an activated PI3K pathway when it was assessed from the plasma using circulating tumour DNA (ct-DNA) analysis. The addition of a PI3K inhibitor decreases the risk of progression in unselected ABC patients and particularly in patients with an activated PI3K pathway detected on ct-DNA analysis. However, their significant dose-limiting toxicity is a limiting factor. Selective PI3K inhibitors are being tested to assess whether these better-tolerated agents have a role in ABC treatment. PMID- 29331752 TI - Synthesis of gold(I) phosphine complexes containing the 2-BrC6F4PPh2 ligand: Evaluation of anticancer activity in 2D and 3D spheroidal models of HeLa cancer cells. AB - Newly synthesised mononuclear gold complexes containing the 2-BrC6F4PPh2 ligand have been fully characterised and their anticancer activity towards five human tumor [prostate (PC3), glioblastoma (U87MG), cervical (HeLa), fibrosarcoma (HT1080), ovarian (SKOV-3)] and normal human embryonic kidney (Hek-293T) cell lines investigated. Some of the synthesised gold complexes displayed higher cytotoxicity than cisplatin towards PC-3, HeLa and U87MG cells and inhibited the thioredoxin reductase (TrxR) enzyme, which is considered a potential target for new compounds in cancer treatment. The more physiologically relevant tumor spheroid assay demonstrated the superior potency of these gold phosphine complexes in inhibiting the growth of cervical carcinoma cell line HeLa (3D) spheroidal models. The mechanism of cell death was shown to be apoptotic cell death through cell cycle arrest, mitochondrial membrane depolarisation and increased ROS production. PMID- 29331751 TI - Comprehensive genomic profiling of head and neck squamous cell carcinoma reveals FGFR1 amplifications and tumour genomic alterations burden as prognostic biomarkers of survival. AB - BACKGROUND: We aimed at identifying deleterious genomic alterations from untreated head and neck squamous cell carcinoma (HNSCC) patients, and assessing their prognostic value. PATIENTS AND METHODS: We retrieved 122 HNSCC patients who underwent primary surgery. Targeted NGS was used to analyse a panel of 100 genes selected among the most frequently altered genes in HNSCC and potential therapeutic targets. We selected only deleterious (activating or inactivating) single nucleotide variations, and copy number variations for analysis. Univariate and multivariate analyses were performed to assess the prognostic value of altered genes. RESULTS: A median of 2 (range: 0-10) genomic alterations per sample was observed. Most frequently altered genes involved the cell cycle pathway (TP53 [60%], CCND1 [30%], CDKN2A [25%]), the PI3K/AKT/MTOR pathway (PIK3CA [12%]), tyrosine kinase receptors (EGFR [9%], FGFR1 [5%]) and cell differentiation (FAT1 [7%], NOTCH1 [4%]). TP53 mutations (p = 0.003), CCND1 amplifications (p = 0.04), CDKN2A alterations (p = 0.02) and FGFR1 amplifications (p = 0.003), correlated with shorter overall survival (OS). The number of genomic alterations was significantly higher in the HPV-negative population (p = 0.029) and correlated with a shorter OS (p < 0.0001). Only TP53 mutation and FGFR1 amplification status remained statistically significant in the multivariate analysis. CONCLUSION: These results suggest that genomic alterations involving the cell cycle (TP53, CCND1, CDKN2A), as well as FGFR1 amplifications and tumour genomic alterations burden are prognostic biomarkers and might be therapeutic targets for patients with HNSCC. PMID- 29331753 TI - An iridium (III) complex as potent anticancer agent induces apoptosis and autophagy in B16 cells through inhibition of the AKT/mTOR pathway. AB - A new ligand THPDP (THPDP = 11-(6,7,8,9-tetrahydrophenazin-2-yl)dipyrido[3,2 a:2',3'-c]phenazine) and its iridium(III) complex [Ir(ppy)2(THPDP)]PF6 (Ir-1) was synthesized and characterized by elemental analysis, IR, ESI-MS, 1H NMR and 13C NMR. The cytotoxicity in vitro of the complex against cancer cells B16, A549, Eca 109, SGC-7901, BEL-7402 and normal NIH 3T3 cell lines was evaluated using MTT method. The IC50 values of the complex toward B16, A549 and Eca-109 cells are 1.0 +/- 0.02, 1.4 +/- 0.03 and 1.6 +/- 0.06 MUM, respectively. The apoptosis was investigated with AO/EB and DAPI staining methods. The complex shows strong ability to inhibit the cell growth in B16, A549 and Eca-109 cells. Ir-1 can induce apoptosis, increase the intracellular ROS level, and cause a decrease in the mitochondrial membrane potential. The intracellular Ca2+ level and the release of cytochrome c were studied under a fluorescent microscope. The cell invasion and autophagy were also performed, and the cell cycle arrest was assayed by flow cytometry. The expression of Bcl-2 family proteins, PI3K, AKT, mTOR, P mTOR was investigated by western blot. The results show that the complex induces apoptosis through ROS-mediated mitochondria dysfunction and inhibition of AKT/mTOR pathways. These findings are helpful for design and synthesis of iridium(III) complexes as potent anticancer drugs. PMID- 29331754 TI - Synthesis and bioevaluation and doking study of 1H-pyrrolo[2,3-b]pyridine derivatives bearing aromatic hydrazone moiety as c-Met inhibitors. AB - Two series of aromatic hydrazone derivatives bearing 1H-pyrrolo[2,3-b]pyridine moiety (7a-r, 8a-i, 12a-b, 13a-c, 16a-d and 17a-e) were designed, synthesized and evaluated for the IC50 values against four cancer cell lines (A549, HepG2, MCF 7and PC-3). Two selected compounds (7c and 17e) were further evaluated for the activity against c-Met, Flt-3, VEGFR-2 and EGFR kinases. The data indicated that targets compounds were selective for c-Met kinase. And the most promising compound 7c was further studied in terms of dose-dependent, time-dependent and cell apoptosis. Most of the compounds showed excellent cytotoxicity activity, especially the most promising compound 7c with the IC50 values of 0.82 +/- 0.08 MUM, 1.00 +/- 0.11 MUM, 0.93 +/- 0.28 MUM and 0.92 +/- 0.17 MUM against A549, HepG2, MCF-7 and PC-3 cell lines and 0.506 MUM against c-Met kinase. Structure activity relationships (SARs) and docking studies indicated that the activities of the phenyl hydrazone derivatives (7a-r and 8a-i) were superior to that of the heterocyclic hydrazone series (12a-b, 13a-c, 16a-d and 17a-e). What's more, the further studies indicated that the target compounds can induce apoptosis of A549 cells and arrest efficiently the cell cycle progression in G2/M phase of A549 cells. PMID- 29331756 TI - 'You're repulsive': Limits to acceptable drunken comportment for young adults. AB - BACKGROUND: Researchers have described a 'culture of intoxication' among young people. Yet drunkenness remains a socially risky practice with potential to evoke emotions of irritation and even disgust. We consider intoxicated practices that young adults in Melbourne, Australia, described as distasteful, to identify contemporary cultural forces that constrain intoxication and limit how it is enacted. METHOD: Interviews were conducted with 60 participants in Melbourne, Australia, each with recent drinking experience. Participants were asked to provide accounts of moments when they regarded their own or others' drunken comportment as unsociable or unpleasant. Transcripts were analysed to identify recurrent themes. RESULTS: Despite amusement when recounting drunken antics, almost everyone in the study identified some discomfort at their own or other's drunkenness. We describe four interacting domains where lines delineating acceptable comportment appear be drawn. The first concerns intoxicated practices. Unpleasant drunken comportment often entailed a sense that the drunk person had disturbed others through an overflow of the self - extruding intimacy, sexuality, violence or bodily fluids. The second domain was gendering, with women vulnerable to being regarded as sexually inappropriate, and men as threatening. Third, the settings where intoxicated behaviour occurred influenced whether intoxicated people risked censure. Finally, the relationships between the drunk person and others, including their respective social positions and drinking patterns, shaped how they were perceived. CONCLUSION: The capacity of alcohol to render people more open to the world is both sought and reviled. It is important to recognise that there remain limits on acceptable drunken comportment, although these are complex and contingent. These limits are enforced via people's affective responses to drunkenness. This is form of alcohol harm reduction that occurs outside of public health intervention. Thus, cultures that constrain drinking should be supported wherever it is possible to do so without reinforcing stigmatising identities. PMID- 29331757 TI - Hedging bets: Applying New Zealand's gambling machine regime to cannabis legalization. AB - Cannabis legalization is often falsely depicted as a binary choice between status quo prohibition and legalizing production and distribution by (regulated) for profit industry. There are, however, many more prudent architectures for legalization, such as restricting production and distribution licenses to not-for profit entities. Wilkins describes how New Zealand applied that concept to gambling machines and proposes a parallel for cannabis legalization. Greater investment in proposing good designs along these lines, including attending to governance structures, would be valuable. PMID- 29331755 TI - Sphingosine-1-phosphate protects human ovarian follicles from apoptosis in vitro. AB - OBJECTIVE(S): We aimed to analyze if anti-apoptotic agent sphingosine-1-phosphate offers protection against in vitro follicle atresia during culture of human ovarian cortical samples. STUDY DESIGN: A translational research study of ex-vivo and in-vitro models of human ovarian tissue. MATERIAL AND METHODS: Ovarian cortical tissue fragments (1 * 0.5 cm) were obtained from young patients (n = 15 mean age +/- SD: 29.4 +/- 2.5) undergoing laparoscopic excision of benign ovarian cysts. The samples were cultured for 4 days in 24-well format culture plate using conventional culture techniques. S1P was added to culture media at 200 and 400 MUM concentrations. At the end of culture period the samples were processed for both histomorphological assessment and detection of apoptosis with immunohistochemistry and western blot methods using apoptosis marker cleaved caspase-3. In vitro estradiol (E2) and AMH productions of the samples were measured with ELISA. Follicle counts were expressed as the mean number of follicles per mm2. RESULTS: The mean numbers of primordial and secondary follicles were 3.2 +/- 0.4 and 0.7 +/- 0.2 respectively, in the fresh fixed uncultured samples. After four days of culture their numbers were significantly decreased to 0.8 +/- 0.2 (p < 0.01) and 0.1 +/- 0.05 (p < 0.05) respectively, in the control samples cultured without S1P compared to fresh fixed samples. S1P treatment decreased follicle atresia and significantly higher number of primordials (2.3 +/- 0.3, p < 0.01) and secondary follicles (0.5 +/- 0.1, p < 0.05) survived in the samples after 4 day culture period compared to those cultured without S1P. In line with this there was dose-dependent decrease in the protein expression of cleaved caspase-3 on western blot and in the number of apoptotic follicles stained positive for cleaved caspase-3 on immunohistochemistry in the samples incubated with S1P at 200 and 400 MUM concentrations. Furthermore, those samples incubated with S1P produced significantly higher amounts of E2 (2339 +/- 321 vs. 1156 +/- 125 pg/mL respectively, p < 0.01) compared to control samples. CONCLUSIONS: These results suggest that S1P promotes follicle survival in human ovarian cortical samples in vitro. PMID- 29331758 TI - Caspase-3/MAPK pathways as main regulators of the apoptotic effect of the phyto mediated synthesized silver nanoparticle from dried stem of Eleutherococcus senticosus in human cancer cells. AB - Siberian ginseng (Eleutherococcus senticosus) was used for the synthesis of an ecofriendly silver nanoparticle (Sg-AgNP), which has exhibited antibacterial, antioxidant effect and lower cytotoxicity to normal cells in comparison to human cancer cells. Although, the potential anticancer activity of Sg-AgNP has not been determined. In this study, two cancer cell lines were used to evaluate the cytotoxicity and apoptotic effect of Sg-AgNP along with the determination of the role of the Caspase-3 / p38 MAPK pathways. Results shown that Sg-AgNP reduced the cell viability of colon cancer cells HT29 and lung cancer cells A549. The cytotoxic effect was higher than the effect exhibited by a commercial silver nanoparticle and Cisplatin. Reactive oxygen species were observed to be superior in both cell lines in the presence of Sg-AgNPs than c-AgNPs and Cisplatin. It was observed an activation of MAPK14 gene and phosphorylation of p38 MAPK protein in both cell lines induced by Sg-AgNPs treatment. Furthermore, induction of morphological changes in the nucleus was done by Sg-AgNPs at 10 MUg/mL in both cell lines. On the other hands, the activation of CASP3 gene and Caspase-3 protein was observed in HT29 cells but only at protein level in A549 cells. These results, suggest that Sg-AgNPs anticancer potential activity might be linked to the induction of apoptosis though the generation of ROS by activation of the Caspase-3/p38 MAPK pathway. PMID- 29331759 TI - Astragaloside IV inhibits cell migration and viability of hepatocellular carcinoma cells via suppressing long noncoding RNA ATB. AB - Astragaloside IV (AS-IV), the major active component of Astragalus membranaceus, has shown attractive anticancer effects in certain cancers. However, the roles and action mechanisms of AS-IV in hepatocellular carcinoma (HCC) are largely unclear. Long noncoding RNAs (lncRNAs) are recently revealed to have crucial roles in HCC initiation and progression, but whether lncRNAs participate in the anticancer roles of AS-IV are unknown. In this study, we demonstrated that AS-IV significantly downregulated lncRNA-ATB expression in a dose- and time-dependent manner in HCC cells. Through downregulating lncRNA-ATB, AS-IV repressed epithelial-mesenchymal transition (EMT) and migration of HCC cells. Furthermore, through downregulating lncRNA-ATB, AS-IV inactivated IL-11/STAT3 signaling, induced HCC cell apoptosis, and decreased HCC cell viability. Overexpression of lncRNA-ATB reversed the effects of AS-IV on HCC cell migration, EMT, cell apoptosis, cell viability, and IL-11/STAT3 signaling. Taken together, our results showed that AS-IV inhibited migration and cell viability of HCC cells via downregulating lncRNA-ATB. Thus, our data provided a novel molecular basis for the applications of AS-IV in the therapy of HCC. PMID- 29331760 TI - Inotodiol suppresses proliferation of breast cancer in rat model of type 2 diabetes mellitus via downregulation of beta-catenin signaling. AB - Breast cancer is amongst the most common cancers causing death of women worldwide. Breast cancer occurrence is more prominent in people with diabetes. A recent trend is management of diabetes and cancer has evolved to be natural remedy including single molecule therapy or combination. In this study, we investigated the effect of inotodiol on breast cancer growth in diabetic conditions. Inotodiol is a lanostane triterpenoid found in natural resources like edible mushroom Inonotus obliquus. We established a rat model of diabetic-breast cancer by treating female Sprague-Dawley rats with streptazotocin (STZ) at 35 mg/kg followed by induction of breast cancer by administration of 7,12 dimethylbenz(a)anthracene (DMBA) at 10 mg/kg. Diabetes development in experimental rats was confirmed by measuring fasting blood glucose levels and oral glucose tolerance test (OGTT), and other biochemical assays were performed. Histological evaluation of pancreas was performed. The proliferation of breast tumor was measured by immunohistochemical staining for PCNA, cleaved-caspase-3 and TUNEL staining for apoptosis, and beta-catenin. Results of the study demonstrate that inotodiol lowered the blood glucose levels in SD rats as well as reduced plasma levels of cholesterol, triglyceride, and high-density lipoprotein. The tumor proliferation marker PCNA was reduced by inotodiol. It downregulated the expression of beta-catenin and its downstream targets (c-Myc and Cyclin D1) followed by apoptosis induction. Conclusively, results suggest that inotodiol regulates blood glucose levels in diabetic rats and then controls proliferation of breast tumor progression by inducing apoptosis via downregulation of beta catenin signaling. It further suggests that inotodiol can be a preventive approach in managing dietary chronic conditions like diabetic-breast cancer. PMID- 29331761 TI - Prevention of articular cartilage degeneration in a rat model of monosodium iodoacetate induced osteoarthritis by oral treatment with Withaferin A. AB - Withaferin A (WFA), a highly oxygenated withanolide is used for anti osteoporotic, fracture healing, obesity control as medicine and dietary supplement in Ayurveda and Unani medicine but its potential remains to be investigate for the osteoarthritis studies. In the present study, chondro protective effects of WFA, under in vitro and in vivo conditions were evaluated. In-vitro pharmacological activity of WFA was tested on rat articular chondrocytes through MTT, DPPH, different staining, FACS and translation studies. In-vivo studies of WFA were evaluated through monosodium iodoacetate (MIA) induced osteoarthritis studies. DPPH assay, alcian blue and toluidine blue staining indicated the chondrogenic potential of WFA. Similarly, WFA enhance chondrogenesis through up-regulation of SOX9 protein. In addition, WFA reduced the ROS generation, mitochondrial depolarization and apoptosis induced by inflammatory cytokines IL-1beta and TNF-alpha. Furthermore, WFA treatment in MIA treated rats alleviated cartilage erosion and improvement in sub-chondral bone micro-architecture by decrease in Tissue volume (~32%), and trabecular bone pattern factor (~28%). Taken together, our study provides convincing evidence for the candidature of WFA (10 mg kg-1 day-1) as a potential agent for the treatment of cartilage degenerative diseases like osteoarthritis. PMID- 29331762 TI - Suppression of Capn4 by microRNA-1271 impedes the proliferation and invasion of colorectal cancer cells. AB - Accumulating evidence has suggested that calpain small subunit 1 (Capn4) plays an important role in the development and progression of malignant tumors. However, little is known about the role of Capn4 in colorectal cancer (CRC). In this study, we aimed to investigate the potential role of Capn4 in CRC and the regulation of Capn4 by microRNAs (miRNAs). Here, we found that Capn4 expression was highly up-regulated in CRC cell lines. Knockdown of Capn4 by siRNA significantly inhibited the proliferation and invasion of CRC cell lines. Furthermore, knockdown of Capn4 suppressed Wnt signaling in CRC cells. Interestingly, Capn4 was found to be a target gene of miR-1271, a tumor suppressive miRNA. The results showed that miR-1271 negatively regulated Capn4 expression in CRC cells. An inverse correlation between miR-1271 and Capn4 was also shown in CRC clinical tissues. Moreover, the overexpression of miR-1271 suppressed the proliferation, invasion and Wnt signaling of CRC cells. Importantly, we found that the restoration of Capn4 expression significantly reversed the antitumor effects of miR-1271 in CRC cells. Overall, these results suggest that miR-1271 inhibits the proliferation and invasion of CRC cells by down-regulating Capn4. Our study suggests that Capn4 and miR-1271 may serve as potential therapeutic targets for the treatment of CRC. PMID- 29331763 TI - Inhibition of isoprenylcysteine carboxylmethyltransferase sensitizes common chemotherapies in cervical cancer via Ras-dependent pathway. AB - Isoprenylcysteine carboxylmethyltransferase (Icmt) catalyzes the last step of post-translational protein prenylation, which is essential for the stability and proper functions of many oncogenic proteins, such as Ras. Despite extensive studies on the roles of Icmt in tumor transformation and progression, little is known on the involvement ofIcmt in the development of tumor resistance to chemotherapy. Here we show the upregulation of Icmt as a persistent response to chemotherapy in cervical cancer cells. In-depth functional analysis demonstrated that Icmt inhibition significantly inhibited growth, induced apoptosis and augmented the inhibitory effects of chemotherapy drugs in cervical cancer in cell culture system and xenograft mouse model. Importantly, combination of Icmt specific inhibitor cysmethynil with doxorubicin or paclitaxel at sublethal concentration achieved almost full inhibition of tumor cell growth and survival. The remarkable synergy between chemotherapy drugs and Icmt inhibition in cervical cancer cells is likely due to the additional suppression of Ras and its downstream signaling pathways. We are the first to demonstrate the contribution of Icmt in tumor cells in response to chemotherapy. Our work also highlights Icmt inhibition as a sensitizing strategy for the treatment of cervical cancer or other Ras-driven tumors. PMID- 29331764 TI - Synthesis: Small library of hybrid scaffolds of benzothiazole having hydrazone and evaluation of their beta-glucuronidase activity. AB - Due to the great biological importance of beta-glucuronidase inhibitors, here in this study, we have synthesized a library of novel benzothiazole derivatives (1 30), characterized by different spectroscopic methods and evaluated for beta glucuronidase inhibitory potential. Among the series sixteen compounds i.e.1-6, 8, 9, 11, 14, 15, 20-23 and 26 showed outstanding inhibitory potential with IC50 value ranging in between 16.50 +/- 0.26 and 59.45 +/- 1.12 when compared with standard d-Saccharic acid 1,4-lactone (48.4 +/- 1.25 uM). Except compound 8 and 23 all active analogs showed better potential than the standard. Structure activity relationship has been established. PMID- 29331765 TI - 5,6-Dihydropyrimidine-1(2H)-carbothioamides: Synthesis, in vitro GABA-AT screening, anticonvulsant activity and molecular modelling study. AB - Even after considerable advances in the field of epilepsy treatment, convulsions are inefficiently controlled by standard drug therapy. Herein, a series of pyrimidine-carbothioamide derivatives 4(a-t) was designed as anticonvulsant agents by doing some important structural modifications in well-known anticonvulsant drugs. Two classical animal models were used for the in vivo anticonvulsant screening, maximum electroshock seizure (MES) and subcutaneous pentylenetetrazole (scPTZ) models; followed by motor impairment study by rotarod method. The most active compound 4g effectively suppressed seizure effect in both the animal models with median doses of 15.6 mg/kg (MES ED50), 278.4 mg/kg (scPTZ ED50) and 534.4 mg/kg (TD50) with no sign of neurotoxicity. Furthermore, in vitro GABA-AT enzyme activity assay of 4g showed inhibitory potency (IC50) of 12.23 MUM. The docking study also favored the animal studies. PMID- 29331766 TI - Roflumilast, type 4 phosphodiesterase inhibitor, attenuates inflammation in rats with ulcerative colitis via down-regulation of iNOS and elevation of cAMP. AB - BACKGROUND: Roflumilast (Rof), a phosphodiesterase 4 (PDE4) inhibitor, has been shown to be an effective agent in inflammatory diseases and marketed for chronic obstructive pulmonary disease. OBJECTIVE: This study was conducted to examine the potential anti-inflammatory effects of Rof in dextran sulphate sodium (DSS) induced ulcerative colitis (UC) in rats and to investigate the molecular mechanisms underlying these effects. METHODS: Forty male Wistar rats were divided into four groups: normal control, colitis group (rats received 5% DSS in their drinking water continuously for 7 days), Rof group, and sulfasalazine (SLZ) group. The Rof (5 mg/kg) and SLZ (500 mg/kg) groups underwent pretreatment with DSS one week ahead of DSS challenge and parallel with DSS. Colitis was determined by assessing colon length, weight loss, histologic colon score, quantifying the concentration of tumor necrosis factor alpha (TNF-alpha), nitric oxide (NO), cyclic adenosine monophosphate (cAMP), myeloperoxidase (MPO) activity and inducible nitric oxide synthase (iNOS) gene expression in colon tissue. RESULTS: Rof attenuated the severity of colitis as evidenced by increased colon length, prevention of body weight loss, and improved colon histologic score compared to DSS group. Rof also suppressed the inflammatory response induced in DSS colitis group by decreasing colon concentration of TNF-alpha, NO and MPO activity and down- regulation of iNOS gene expression. The level of cAMP was increased by Rof compared to DSS group. The obtained results of Rof were comparable to those exerted by SLZ. CONCLUSION: These findings revealed the beneficial effects of Rof in alleviating inflammation in DSS colitis. PMID- 29331767 TI - Lessons from simple marine models on the bacterial regulation of eukaryotic development. AB - Molecular cues from environmental bacteria influence important developmental decisions in diverse marine eukaryotes. Yet, relatively little is understood about the mechanisms underlying these interactions, in part because marine ecosystems are dynamic and complex. With the help of simple model systems, including the choanoflagellate Salpingoeca rosetta, we have begun to uncover the bacterial cues that shape eukaryotic development in the ocean. Here, we review how diverse bacterial cues-from lipids to macromolecules-regulate development in marine eukaryotes. It is becoming clear that there are networks of chemical information circulating in the ocean, with both eukaryotes and bacteria acting as nodes; one eukaryote can precisely respond to cues from several diverse environmental bacteria, and a single environmental bacterium can regulate the development of different eukaryotes. PMID- 29331768 TI - The cholinergic anti-inflammatory pathway: an innovative treatment strategy for respiratory diseases and their comorbidities. AB - Over the past few decades, it has been clarified that the nervous system and immune system have overlapping distributions and their interactions are critical in the regulation of immunological and inflammatory responses. The cholinergic anti-inflammatory pathway, including the parasympathetic nerve systems and humoral factors orchestrate the immune responses to protect the body during infection and tissue injury. Recent investigations have attempted to clarify how the parasympathetic nerve systems attenuate the systemic inflammatory responses and identified the alpha7 nicotinic acetylcholine receptor (alpha7nAChR) as a crucial target for attenuating the release of inflammatory cytokines from inflammatory cells including macrophages and dendritic cells. This modulatory circuit pathway possibly exists in the lungs and might be involved in regulating inflammation and immunity during infection and other inflammatory lung diseases including asthma and COPD, which means that modulation of the cholinergic anti inflammatory pathway is a possible therapeutic target for lung diseases. PMID- 29331769 TI - Source identification of uranium-containing materials at mine legacy sites in Portugal. AB - Whilst prior nuclear forensic studies have focused on identifying signatures to distinguish between different uranium deposit types, this paper focuses on providing a scientific basis for source identification of materials from different uranium mine sites within a single region, which can then be potentially used within nuclear forensics. A number of different tools, including gamma spectrometry, alpha spectrometry, mineralogy and major and minor elemental analysis, have been utilised to determine the provenance of uranium mineral samples collected at eight mine sites, located within three different uranium provinces, in Portugal. A radiation survey was initially conducted by foot and/or unmanned aerial vehicle at each site to assist sample collection. The results from each mine site were then compared to determine if individual mine sites could be distinguished based on characteristic elemental and isotopic signatures. Gamma and alpha spectrometry were used to differentiate between samples from different sites and also give an indication of past milling and mining activities. Ore samples from the different mine sites were found to be very similar in terms of gangue and uranium mineralogy. However, rarer minerals or specific impurity elements, such as calcium and copper, did permit some separation of the sites examined. In addition, classification rates using linear discriminant analysis were comparable to those in the literature. PMID- 29331770 TI - Women's satisfaction with mammography and predictors of participation in an organized breast cancer screening program: Perspectives of a Local Health Unit in Rome. AB - OBJECTIVES: The aims of the study were to evaluate satisfaction with the mammography service of the Local Health Unit RMA (Rome, Lazio Region) among women who have attended the program and to identify the predictors of participation. STUDY DESIGN: Cross-sectional study. METHODS: A telephone-based questionnaire was administered to women eligible for mammography screening. The respondents were randomly selected and interviewed by the health center staff. RESULTS: A total of 502 women were interviewed, of which 264 (52.6%) have attended the screening program at least once. The attendees received the invitation letter more often than the non-attendees (88.3% vs 77.7%; P = 0.002), were more willing to participate (85.6% vs 69.3%; P = 0.001), they considered the letter very clear (15% vs 10.8%; P = 0.003), and information obtained through the hotline appropriate (64.7% vs 56.7%; P = 0.002). Overall satisfaction was high. Critical issues were lack of response from the hotline staff, medium-long waiting time for the results and further examinations. Age >61 years (odds ratio [OR] = 2.747; 95% confidence interval [CI] = 1.842-4.096), receiving the invitation letter (OR = 2.539; 95% CI = 1.519-4.242), and intention to participate (OR = 3.086; 95% CI = 1.938-4.915) were significantly associated with participation in the screening program. CONCLUSIONS: Women's satisfaction with mammography is an important aspect of service utilization. Implementation of strategies to reduce waiting time, increase operating hours, and improve the invitation procedure and the hotline service could enhance satisfaction and attendance rate. PMID- 29331771 TI - Quarantine and the U.S. military response to the Ebola crisis: soldier health and attitudes. PMID- 29331772 TI - Alcohol-induced risk behaviors among Brazilian nightclub patrons: a latent class analysis. AB - OBJECTIVE: The aim of this study is to identify risk behavior profiles associated with alcohol consumption among patrons during or just after departure from nightclubs in Sao Paulo, Brazil. STUDY DESIGN: Cross-sectional survey. METHODS: The study used a two-stage cluster sampling survey design. Data were collected on a probabilistic sample of nightclub patrons. Overall, 2422 patrons were interviewed at the entrance of 31 nightclubs. Latent class analysis (LCA) was used to identify risk behavior profiles with an emphasis on risky driving, fights, alcoholic blackouts, and harm and unsafe sex. RESULTS: A 3-class LCA model was selected, with classes consisting of low (43%), medium (33%), and high (24%) risk patrons. Compared to patrons in the low-risk class, patrons in the medium- and high-risk classes were more likely to be men (odds ratio [OR] = 2.2, 95% confidence interval {CI} [1.2-4.0] and OR = 3.2, 95% CI [1.8-5.8], respectively), to have engaged in binge drinking during the last year (OR = 15.0, 95% CI [7.2-31.3] and OR = 14.3, 95% CI [9.4-21.8]), to be in the highest socioeconomic stratum (OR = 2.6, 95% CI [1.3-5.1] and OR = 2.0, 95% CI [1.2-3.5]) and to have been interviewed at a hip-hop music nightclub (OR = 2.8, 95% CI [1.1 6.8] and OR = 3.7, 95% CI [1.5-9.1]). CONCLUSIONS: Risk behaviors were not equally distributed among nightclubs. Individual- and environmental-level characteristics are associated with higher risk. Alcohol harm reduction, such as the implementation of a responsible drinking service, should be implemented in Sao Paulo nightclubs. PMID- 29331773 TI - Impact of co-exposure of aldrin and titanium dioxide nanoparticles at biochemical and molecular levels in Zebrafish. AB - Aldrin (ALD), a persistent-organic-pollutant (POP), an organochlorine-cyclodiene pesticide is highly toxic in nature. Titanium dioxide nanoparticles (TNP) are widely used for various industrial applications. Despite the remarkable research on pesticide toxicity, the work with impact of nanoparticles on POP has been dealt with marginally. Chemicals co-exist in the environment and exhibit interactive effects. An investigation was carried out to evaluate the individual and combined effects of ALD (6 ppm) and TNP (60 ppm) exposure at sub-lethal concentration for 24 h in zebrafish. Significant reversal of lipid peroxidation level in liver and brain tissues and restoration in enhanced catalase activity in all examined tissues were observed in combined group. For other parameters, combined exposure of ALD and TNP does not show significant reversal action on ALD toxicity. Further studies are inline to understand combined effects of both to achieve significant reversal of ALD toxicity by TNP nanoparticles with threshold concentration of aldrin. PMID- 29331774 TI - The synergy of Vitamin C with decitabine activates TET2 in leukemic cells and significantly improves overall survival in elderly patients with acute myeloid leukemia. AB - BACKGROUND: Decitabine is widely used in the treatment of acute myeloid leukemia (AML) in elderly patients. Low-dose Vitamin C has also been indicated to induce DNA demethylation at the cellular level. However, little is known whether low dose Vitamin C has a synergistic effect with decitabine in clinic. METHODS: The effect of combined low-dose Vitamin C and decitabine on cell proliferation, the cell cycle, apoptosis and the expression level and activity of TET2 was investigated in HL60 and NB4 human leukemic cells. Additionally, we analyzed the clinical outcomes of 73 elderly AML patients who received A-DCAG (intravenous Vitamin C [IVC] plus DCAG [n = 39]) or DCAG (n = 34) treatment. RESULTS: We found that low-dose Vitamin C and decitabine has a synergistic efficacy on proliferation, apoptosis, TET2 expression and activity, compared to drug-alone treatment in HL60 and NB4 cell lines in vitro. In clinic, feasibility and safety evaluations revealed that patients who received A-DCAG regimen have a higher complete remission (CR) rate than those who received the DCAG regimen (79.92% vs. 44.11%; P = 0.004) after one cycle of chemotherapy. The median overall survival (OS) was better in the A-DCAG group compared with the DCAG group (15.3 months vs. 9.3 months, P = 0.039). Patients with adverse cytogenetics did benefit from CR. There was no clinically significant additional toxicity observed with the addition of IVC. CONCLUSION: On the basis of these results, the addition of IVC at low doses to DCAG appeared to improve CR and prolong OS, compared with DCAG, in elderly patients with AML. PMID- 29331775 TI - Experience of lecturers with simulation training in midwifery education in Slovakia. AB - The simulation training in midwifery has a long tradition. It is aimed at acquiring basic and advanced practical skills such as performing a certain number of births, episiotomy and subsequent suture, assisting during breech birth etc. Midwifery education is currently based on the requirements of the Directives of the European Union exactly specifying number of performed practical procedures and approaches (World Health Organisation (WHO) Europe, 2009). The aim of this paper is to draw attention to the experience with the simulation training from the teacher's point of view in the study program Midwifery in Slovakia. The authors describe the locations for training of midwifery skills, training of basic and advanced midwifery skills using simulation, the types of simulators available and used and training approaches. They outline the advantages and disadvantages of using obstetric simulators based on their own experience. PMID- 29331776 TI - Low-cost screen-printed electrodes based on electrochemically reduced graphene oxide-carbon black nanocomposites for dopamine, epinephrine and paracetamol detection. AB - A green approach for the preparation of carbon black (CB) and electrochemically reduced graphene oxide composite (ERGO) is described based on screen printed carbon electrodes (SPCEs) fabricated on poly(ethylene terephthalate) (PET) as electrochemical sensors. This approach leads to a heterogeneous hydrophilic surface with high concentration of defect sites according to scanning electron microscopy, contact angle and Raman spectroscopy measurements. The SPCE/CB-ERGO sensor was tested with dopamine (DA), epinephrine (EP) and paracetamol (PCM), exhibiting an enhanced electrocatalytic performance compared to the bare SPCE. It displayed a wider linear range, lower limit of detection and a remarkably higher analytical sensitivity, viz. 1.5, 0.13 and 0.028 A L mol-1 for DA, EP and PCM, respectively, being also capable of simultaneous determination of the three analytes. Such high performance is demonstration that SPCE/CB-ERGO may serve as generic platform for cost-effective flexible electrochemical sensors. PMID- 29331777 TI - Comparing the antifouling effects of activated carbon and TiO2 in ultrafiltration membrane development. AB - We use activated carbon (AC) and titanium oxide (TiO2) nanomaterials as the additives to prepare four polyvinylidene fluoride (PVDF) based ultrafiltration membranes by nonsolvent induced phase separation. The surface properties (pore size, porosity, hydrophilicity and roughness) of the membranes are characterized by scanning electron microscopy, water contact angle measurement, and atomic force microscopy. The chemical properties of the membranes are evaluated by Fourier transform infrared spectroscopy with attenuated total reflection and X ray diffraction. All these additives can improve the surface hydrophilicity and water permeation flux of the membrane. However, the addition of TiO2 nanoparticles (20-30 nm) results in larger surface porosities and pore sizes, which causes more severe membrane fouling compared with the neat PVDF membrane. The PVDF-AC membrane exhibits excellent fouling resistance. Particularly, the irreversible fouling after blending AC into PVDF reduces dramatically from 40% to 25%. The antifouling performance of the PVDF-AC membrane may result from the improved hydrophilicity and the favorable surface and structure properties of the membrane. To the best of our knowledge, this is the first demonstration of the antifouling function of AC in membrane preparation. This study suggests that AC could be a new type of nanomaterial for developing antifouling membranes. PMID- 29331778 TI - Synthesis of a novel narrow-band-gap iron(II,III) oxide/titania/silver silicate nanocomposite as a highly efficient and stable visible light-driven photocatalyst. AB - Ag6Si2O7, a visible light-driven photocatalyst, has attracted considerable attention owing to its enormous environmental remediation potential. In this work, a magnetic iron(II,III) oxide/titania/silver silicate (Fe3O4/TiO2/Ag6Si2O7) nanocomposite was synthesized by anchoring TiO2 and Ag6Si2O7 on the surface of Fe3O4 nanoparticles. The morphology, crystal structure, as well as the spectroscopic, magnetic, and photocurrent properties of the as-prepared Fe3O4/TiO2/Ag6Si2O7 nanocomposite were studied. Methylene blue (MB) was used for evaluating the photocatalytic performance under simulated visible light. The Brunauer-Emmett-Teller (BET) surface area, total pore volumes, and average pore diameter of the Fe3O4/TiO2/Ag6Si2O7 nanocomposite were calculated to be 33.077 m2/g, 0.099 cm3/g, and 15.45 nm, respectively. The Fe3O4/TiO2/Ag6Si2O7 photocatalyst showed a narrow-band-gap (1.38 eV) while exhibiting excellent photocatalytic performance with a photocurrent of 9.4 uA/cm2 under simulated visible light. Furthermore, the nanocomposites showed high resistance to degradation (i.e., more than 80%) after 5 reaction cycles and as a result of high saturation magnetization (25.51 emu/g), the spent material was easily separated upon application of a magnetic field. Meanwhile, the photogenerated holes (h+) and superoxide ions (O2-) were confirmed as the main active species. This novel photocatalyst is expected to provide a new insight into the design of photocatalysts with excellent recyclability, high performance, and good stability. PMID- 29331779 TI - Superior peroxidase mimetic activity of tungsten disulfide nanosheets/silver nanoclusters composite: Colorimetric, fluorometric and electrochemical studies. AB - Developing a novel peroxidase nano-mimetic is a challenging research topic in biosensing field. Herein, WS2 nanosheets (WS2 NS) decorated with silver nanoclusters (AgNCs) was introduced as a new nanocomposite with improved peroxidase mimetic behavior. WS2 NS/AgNCs nanocomposite was synthesized by simple chemical reduction of silver cations in the presence of WS2 NS. The enhanced catalytic activity of nanocomposite in chemical and electrochemical reduction of H2O2 was studied using colorimetry, fluorometry and electrochemical techniques. Attaching the AgNCs on the surface of WS2 NS effectively improved the catalytic activity of these nanosheets, which may be connected to the difference of the Fermi energy levels of coupled nanomaterial. The unequal Fermi levels cause charge separation between two phases creating highly active sites on the interface of coupled nanomaterial. Moreover, the new mimetic nanocomposite was applied for the analysis of glucose in blood, based on its enzymatic oxidation using glucose oxidase and then, on the measurement of produced H2O2 by sensitive fluorescence detection system. In optimum condition, a linear association was found between the generated fluorescence intensity and glucose logarithmic concentration in the range of 0.05-400 uM, and the limit of detection (3S/m) was 21 nM. PMID- 29331780 TI - Application of octanohydroxamic acid for liquid-liquid extraction of manganese oxides and fabrication of supercapacitor electrodes. AB - MnO2 and Mn3O4 particles were prepared by wet chemical methods and efficiently dispersed and mixed with multiwalled carbon nanotubes (MWCNT) for the fabrication of composite MnO2-MWCNT and Mn3O4-MWCNT electrodes for electrochemical supercapacitors (ES). The problem of particle agglomeration was addressed by particle extraction through a liquid-liquid interface (PELLI) using octanohydroxamic acid (OHA) as a new extractor. OHA exhibited remarkable adsorption on particles due to a bidentate bonding mechanism. The use of OHA broadened the application of PELLI technology, because it allowed good extraction of particles from an aqueous phase at high pH. Moreover, OHA allowed efficient extraction by strong adsorption on particles not only at the liquid-liquid interface, but also in the bulk of an aqueous phase. Building on the advantages offered by the PELLI method and OHA as an extractor we found that Mn3O4-MWCNT electrodes exhibited a remarkably high capacitance of 4.2F cm-2. Another major finding was that capacitance of Mn3O4-MWCNT electrodes was higher than that of MnO2-MWCNT electrodes at active mass of 33 mg cm-2. This finding showed processing advantages of PELLI and paved the way for applications of novel colloidal and surface modification strategies for the development of advanced ES. A conceptually new approach has been proposed based on the use of hydroxamic acids as capping agents for synthesis and extractor molecules for PELLI. PMID- 29331781 TI - A step-wise self-assembly approach in preparation of multi-responsive poly(styrene-co-methyl methacrylate) nanoparticles containing spiropyran. AB - HYPOTHESIS: Surfactant-free emulsion polymerization has become favorable due to circumventing instability issues reasonably. Incorporation of an appropriate hydrophilic macroRAFT, could provide controlled in-situ self-assembly via copolymerization with hydrophobic monomers into polymer particles. So far, this approach has mostly been studied in dispersion systems and further studies are needed in emulsions. Beside the corresponding mechanistic studies, the prepared latex particles would potentially exhibit smart behaviors by choosing stimuli responsive monomers. EXPERIMENTS: Poly(styrene-co-methyl methacrylate) latexes were prepared by utilizing pH-responsive polydimethylaminoethyl methacrylate as the hydrophilic segment through polymerization induced self-assembly (PISA). A systematic study on the effect of MMA amount, role of smart spiropyran ethylacrylate (SPEA) comonomer and the synthesized macroRAFT for inducing efficient assembly has been performed comparatively for the first time. FINDINGS: SEM and DLS analyses showed the effect of MMA content on the obtaining of spherical particles with bimodal or monodisperse size distributions in both series of samples. Kinetic studies through conversion measurements along with GPC analysis revealed that the incorporation of MMA and SPEA strongly affected the efficiency of in-situ self-assembly, particle formation and RAFT-controllability on molecular weights. Ultimately, acido/basochromism, pH-responsivity and UV responsivity of the prepared latexes were verified and the results showed their facile and fast multi-responsivity. PMID- 29331782 TI - Stratification during evaporative assembly of multicomponent nanoparticle films. AB - HYPOTHESIS: Multicomponent coatings with layers comprising different functionalities are of interest for a variety of applications, including electronic devices, energy storage, and biomaterials. Rather than creating such a film using multiple deposition steps, we explore a single-step method to create such films by varying the particle Peclet numbers, Pe. Our hypothesis, based on recent theoretical descriptions of the stratification process, is that by varying particle size and evaporation rate such that Pe of large and small particles are above and below unity, we can create stratified films of polymeric and inorganic particles. EXPERIMENTS: We present AFM on the surface composition of films comprising poly(styrene) nanoparticles (diameter 25-90 nm) and silica nanoparticles (diameter 8-14 nm). Previous studies on films containing both inorganic and polymeric particles correspond to large Pe values (e.g., 120-460), while we utilize Pe ~ 0.3-4, enabling us to test theories that have been developed for different regimes of Pe. FINDINGS: We demonstrate evidence of stratification and effect of the Pe ratio, although our results agree only qualitatively with theory. Our results also provide validation of recent theoretical descriptions of the film drying process that predict different regimes for large-on-top and small-on-top stratification. PMID- 29331783 TI - Comparative study of novel in situ decorated porous chitosan-selenium scaffolds and porous chitosan-silver scaffolds towards antimicrobial wound dressing application. AB - Dermal defects caused by trauma or disease are challenging to treat due to difficult-to-treat infections that impair wound healing. Due to the widespread emergence of drug-resistant bacteria and dwindling discoveries of new antibiotics, there is currently an urgent need to introduce novel antimicrobials effective against antibiotic-resistant bacteria without causing damage to host tissues. As selenium (Se) and silver (Ag) are known for their antimicrobial properties, we investigated the separate loading of these materials into porous chitosan/PVA (CS) scaffolds through a simple in situ deposition method to create two distinct wound dressing materials (CS-Se and CS-Ag). Scaffolds with Se nanostructures and scaffolds containing Ag nanostructures were characterized and their activities against S. aureus - (a Gram-positive bacterium), E. coli - (a Gram-negative bacterium) and Methicillin-Resistant S. aureus (MRSA) - (a multi drug resistant bacterium) were compared. The release of Ag and Se in vitro was shown to depend strongly on the release medium used (deionised water, mammalian or bacterial culture media). Ag-loaded scaffolds showed a significant reduction in CFUs and cytotoxicity towards fibroblasts while Se-loaded scaffolds showed abilities to damage bacterial cell membrane and non-toxicity to fibroblast. Overall, in this study we have demonstrated simple, in situ immobilization porous CS scaffolds with either Se or Ag nanostructures which could be used to suit different wound healing applications. PMID- 29331784 TI - Degradation of dyes by peroxymonosulfate activated by ternary CoFeNi-layered double hydroxide: Catalytic performance, mechanism and kinetic modeling. AB - Ternary CoFeNi-layered double hydroxide (CoFeNi-LDH) was synthesized and initially applied to activate peroxymonosulfate (PMS) for the degradation of Congo red (CR) and Rhodamine B (RhB). The results show that the CoFeNi-LDH/PMS system can efficiently degrade nearly 100% of 20 mg/L CR or 20 mg/L RhB within 6- and 10-min reaction times, respectively. And the catalyst exhibits higher degradation efficiency on CR than on RhB under identical conditions, which is confirmed by electron clouds of the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) performed by DFT calculations. Quenching tests reveal that SO4- is the dominant active species participating in the degradation process. Mechanism investigation demonstrates that Co(II)-Co(III) Co(II) cycle is responsible for activating PMS to generate radicals for dyes degradation. A dynamic kinetic model is successfully developed to simulate the concentration profiles of CR and RhB degradation in CoFeNi-LDH/PMS system. The empirical second order rate constants between SO4- and CR (kSO4-/CR), HO and CR (kOH/CR), SO4- and RhB (kSO4-/RhB), HO and RhB (kHO/RhB) are determined to be 2.47 * 107, 3.44 * 106, 8.39 * 106 and 2.62 * 107 M-1s-1, respectively. In addition, toxic assessment using ECOSAR program suggests that the overall toxicity of CR and RhB decreased after treatment with CoFeNi-LDH/PMS system. Repeating tests and application of CoFeNi-LDH in different water sources give us adequate confidence that the as-synthesized CoFeNi-LDH is favorable for the purification of dye-contaminanted waters in practical. PMID- 29331785 TI - Causal nature of neighborhood deprivation on individual risk of coronary heart disease or ischemic stroke: A prospective national Swedish co-relative control study in men and women. AB - We studied the association between neighborhood socioeconomic status (SES) and incidence of coronary heart disease (CHD) or ischemic stroke in the total population and in full- and half-siblings to determine whether these associations are causal or a result from familial confounding. Data were retrieved from nationwide Swedish registers containing individual clinical data linked to neighborhood of residence. After adjustment for individual SES, the association between neighborhood SES and CHD showed no decrease with increasing genetic resemblance, particularly in women. This indicates that the association between neighborhood SES and CHD incidence is partially causal among women, which represents a novel finding. PMID- 29331786 TI - The meaning of community in diverse neighborhoods: Stratification of influence and mental health. AB - As the United States diversifies, individuals are increasingly encountering and managing racial and ethnic difference in their neighboring relationships, thus challenging the "cultural" basis for consensus on the local meaning of community. This mixed-methods study considers the ways in which sense of community relates to mental health in two longstanding racially- and socioeconomically-diverse neighborhoods. I ask how social resources are distributed within diverse neighborhoods, integrating survey (N = 243) and interview (N = 60) data to make observations about both the existence and nature of relationships among the unique dimensions of sense of community and mental health. Findings indicate that the influence dimension of sense of community is particularly vital for mental health, and that whites and homeowners perceive and utilize influence more than other residents. I use residents' narratives about their experiences to interpret how influence may relate to mental health and elaborate the ways in which people of color, renters, and individuals with long tenure comprehend their lack of influence in diverse neighborhoods. PMID- 29331787 TI - Val66Met functional polymorphism and serum protein level of brain-derived neurotrophic factor (BDNF) in acute episode of schizophrenia and depression. AB - BACKGROUND: Brain-derived neurotrophic factor (BDNF) influences neuron differentiation during development as well as the synaptic plasticity and neuron survival in adulthood. BDNF has been implicated in the pathogenesis of schizophrenia and depression. Val66Met polymorphism and BDNF serum level are potential biomarkers in neuropsychiatric disorders. The aim of this study was to determine the effect of BDNF gene Val66Met functional polymorphism on serum BDNF concentration in patients with schizophrenia, during depression episode and in healthy control group. METHODS: 183 participants were recruited (61 patients with depressive episode, 56 females with schizophrenia, 66 healthy controls) from Polish population. Serum BDNF levels were measured using ELISA method. Val66Met polymorphism was genotyped using PCR- RFLP method. RESULTS: Serum BDNF levels were not associated with Val66Met polymorphism in either of the groups. A significant increase of BDNF level in schizophrenia (p = 0.0005) and depression (p = 0.026) comparing to the control group has been observed. CONCLUSIONS: Our results suggest that the functional Val66Met BDNF polymorphism is not associated with BDNF serum levels, which is in line with previous findings. Replication studies on larger groups are needed. PMID- 29331788 TI - Curcumin inhibits cardiac hypertrophy and improves cardiovascular function via enhanced Na+/Ca2+ exchanger expression after transverse abdominal aortic constriction in rats. AB - BACKGROUND: This study tested the hypothesis that inhibition of cardiac hypertrophy and preservation of cardiac/endothelial function by the natural yellow pigment curcumin are associated with upregulated expression of Na+/Ca2+ exchanger (NCX) after transverse aortic constriction (TAC). METHODS: Male Wistar rats were subjected to TAC for 10 weeks and curcumin (50 mg/kg/day) was fed by gastric gavage during TAC. Expression of NCX and endothelial nitric oxide synthase (eNOS) was analyzed by Western blot and immunohistochemistry. RESULTS: Compared with the animals in the TAC group, curcumin significantly increased the survival rate and reduced the ratio of heart or left ventricle (LV) to body weight and the cross sectional area of cardiomyocytes. In coincidence with improved LV systolic pressure and reduced LV end-diastolic pressure, curcumin significantly reduced LV end-systolic and diastolic diameter/dimension, and enhanced LV ejection fraction and LV fractional shortening as measured by echocardiography. Furthermore, endothelium-dependent relaxation of aortic rings in response to acetylcholine was significantly improved by curcumin. Along with these modifications, the expression and localization of NCX and eNOS in the myocardium and vascular endothelium were significantly upregulated by curcumin. The protective effect of curcumin on endothelium-dependent relaxation was partly blocked by pretreatment with the NCX inhibitor, KB-R7943. CONCLUSIONS: These results demonstrate that inhibition of cardiac hypertrophy, improvement of cardiac systolic/diastolic function and preservation of vascular endothelium by curcumin might be associated with upregulated NCX expression level in response to increased afterload. PMID- 29331789 TI - Anticonvulsant activities of alpha-asaronol ((E)-3'-hydroxyasarone), an active constituent derived from alpha-asarone. AB - BACKGROUND: Epilepsy is one of chronic neurological disorders that affects 0.5 1.0% of the world's population during their lifetime. There is a still significant need to develop novel anticonvulsant drugs that possess superior efficacy, broad spectrum of activities and good safety profile. METHODS: alpha Asaronol and two current antiseizure drugs (alpha-asarone and carbamazepine (CBZ)) were assessed by in vivo anticonvulsant screening with the three most employed standard animal seizure models, including maximal electroshock seizure (MES), subcutaneous injection-pentylenetetrazole (PTZ)-induced seizures and 3 mercaptopropionic acid (3-MP)-induced seizures in mice. Considering drug safety evaluation, acute neurotoxicity was assessed with minimal motor impairment screening determined in the rotarod test, and acute toxicity was also detected in mice. RESULTS: In our results, alpha-asaronol displayed a broad spectrum of anticonvulsant activity (ACA) and showed better protective indexes (PI = 11.11 in MES, PI = 8.68 in PTZ) and lower acute toxicity (LD50 = 2940 mg/kg) than its metabolic parent compound (alpha-asarone). Additionally, alpha-asaronol displayed a prominent anticonvulsant profile with ED50 values of 62.02 mg/kg in the MES and 79.45 mg/kg in the sc-PTZ screen as compared with stiripentol of ED50 of 240 mg/kg and 115 mg/kg in the relevant test, respectively. CONCLUSION: The results of the present study revealed alpha-asaronol can be developed as a novel molecular in the search for safer and efficient anticonvulsants having neuroprotective effects as well as low toxicity. Meanwhile, the results also suggested that alpha-asaronol has great potential to develop into another new aromatic allylic alcohols type anticonvulsant drug for add-on therapy of Dravet's syndrome. PMID- 29331790 TI - C-Phycocyanin: Cellular targets, mechanisms of action and multi drug resistance in cancer. AB - C-Phycocyanin (C-PC) has been shown to be promising in cancer treatment; however, although several articles detailing this have been published, its main mechanisms of action and its cellular targets have not yet been defined, nor has a detailed exploration been conducted of its role in the resistance of cancer cells to chemotherapy, rendering clinical use impossible. From our extensive examination of the literature, we have determined as our main hypothesis that C-PC has no one specific target, but rather acts on the membrane, cytoplasm, and nucleus with diverse mechanisms of action. We highlight the cell targets with which C-PC interacts (the MDR1 gene, cytoskeleton proteins, and COX-2 enzyme) that make it capable of killing cells resistant to chemotherapy. We also propose future analyses of the interaction between C-PC and drug extrusion proteins, such as ABCB1 and ABCC1, using in silico and in vitro studies. PMID- 29331791 TI - Magnesium sulfate reduces formalin-induced orofacial pain in rats with normal magnesium serum levels. AB - BACKGROUND: In humans, orofacial pain has a high prevalence and is often difficult to treat. Magnesium is an essential element in biological a system which controls the activity of many ion channels, neurotransmitters and enzymes. Magnesium produces an antinociceptive effect in neuropathic pain, while in inflammatory pain results are not consistent. We examined the effects of magnesium sulfate using the rat orofacial formalin test, a model of trigeminal pain. METHODS: Male Wistar rats were injected with 1.5% formalin into the perinasal area, and the total time spent in pain-related behavior (face rubbing) was quantified. We also spectrophotometrically determined the concentration of magnesium and creatine kinase activity in blood serum. RESULTS: Magnesium sulfate administered subcutaneously (0.005-45mg/kg) produced significant antinociception in the second phase of the orofacial formalin test in rats at physiological serum concentration of magnesium. The effect was not dose-dependent. The maximum antinociceptive effect of magnesium sulfate was about 50% and was achieved at doses of 15 and 45mg/kg. Magnesium did not affect increase the levels of serum creatine kinase activity. CONCLUSIONS: Preemptive systemic administration of magnesium sulfate as the only drug can be used to prevent inflammatory pain in the orofacial region. Its analgesic effect is not associated with magnesium deficiency. PMID- 29331792 TI - Candesartan, angiotensin II type 1 receptor blocker is able to relieve age related cognitive impairment. AB - BACKGROUND: Candesartan is one of the standard antihypertensive drug belonging to AT1R angiotensin receptor blockers (ARBs) group. Beneficial effects of this drug in the treatment of hypertension are well recognized. In this study we tested a hypothesis that candesartan could alleviate age-related memory decline. METHODS: Aged and young rats have been treated with candesartan (0.1mg kg-1) for 21days and then underwent a battery of behavioral tests: for assessment of long-term memory (Passive avoidance test - PA), recognition memory (Object recognition test - OR), locomotor functions (Open field - OF) and anxiety behavior (Elevated plus maze - EPM). RESULTS: Aged rats (2-years-old) displayed clear declining tendency in the retrieval of passive avoidance behavior showing thus increased forgetting. Prolonged administration of candesartan significantly (p<0.01) reversed this phenomenon causing recall measured as the avoidance latency, and surprisingly also showed the tendency to recall deterioration observed in the young rats. More optimistic results were achieved in the OR, where candesartan significantly improved recognition memory (p<0.001) of aged rats who performed even better than the young ones (p<0.05). CONCLUSIONS: It appears that candesartan potently abolishes some kinds of aging-induced memory impairments and cognitive declines in aged rats, but in some circumstances it may even could increase the damage of memory. It seems that the use of sartans in the treatment of hypertension for patients with associated cognitive impairment, or for people in risk groups for such disorders can be an interesting alternative. PMID- 29331793 TI - Moderate-dose simvastatin therapy potentiates the effect of vitamin D on thyroid autoimmunity in levothyroxine-treated women with Hashimoto's thyroiditis and vitamin D insufficiency. AB - BACKGROUND: Vitamin D preparations reduce titers of thyroid antibodies in women with autoimmune thyroiditis. The same effect was induced by high-dose, but not moderate-dose-, statin therapy. No previous study has investigated the impact of concomitant treatment with a statin and vitamin D on thyroid autoimmunity. METHODS: The study included three matched groups of women with Hashimoto's thyroiditis and low vitamin D status. Groups B (n=19) and C (n=20) were treated with vitamin D (2000 IU daily). Because of coexistent hypercholesterolemia, groups A (n=18) and B received simvastatin (40mg daily). Plasma lipids, serum levels of thyrotropin, free thyroid hormones and 25-hydroxyvitamin D, as well as titers of thyroid peroxidase and thyroglobulin antibodies were measured at the beginning of the study and 6 months later. RESULTS: At baseline, 25 hydroxyvitamin D levels inversely correlated with titers of thyroid antibodies. In groups A and B, simvastatin reduced plasma levels of total and LDL cholesterol. Simvastatin produced no effect on thyroid antibody titers. Vitamin D decreased titers of thyroid peroxidase antibodies, as well as tended to decrease titers of thyroglobulin antibodies. Simvastatin-vitamin D combination therapy reduced serum titers of thyroid peroxidase and thyroglobulin antibodies and this effect was stronger than the effect of simvastatin and vitamin D administered alone. Treatment-induced changes in thyroid antibody titers correlated with baseline antibody titers, baseline levels of 25-hydroxyvitamin and treatment induced changes in 25-hydroxyvitamin. CONCLUSIONS: The obtained results indicate that simvastatin may potentiate the impact of vitamin D on thyroid autoimmunity in vitamin D-deficient women with Hashimoto's thyroiditis. PMID- 29331794 TI - Melatonin suppresses eosinophils and Th17 cells in hamsters treated with a combination of human liver fluke infection and a chemical carcinogen. AB - BACKGROUND: The combination of Opisthorchis viverrini (OV) infection and chemical carcinogen induces cholangiocarcinoma (CCA) in hamsters via inflammation-mediated mechanisms. Thus, suppression of inflammatory cells at the initial stages of CCA development would be of benefit. We aimed to investigate whether IL-17-producing CD4+ T cells (Th17) and CD4+ Foxp3+ T cells (Treg) are involved in the early stages of CCA genesis and can be targeted for suppression by melatonin. METHODS: Inflammation, an initial stage of CCA development, was induced in hamsters by a combination of O. viverrini infection and N-nitrosodimethylamine (NDMA) administration. Melatonin (50mg/kg) was additionally administered to one group for the 30days of the experiment. Liver tissue-resident T cells were investigated using immunostaining, western blotting, and real-time PCR. RESULTS: OV+NDMA induced CCA tissues showed significantly higher numbers of inflammatory cells, especially eosinophils, bile duct proliferation and IL-17+ cell infiltration compared to normal livers. Expression of Foxp3 was localized in the bile duct epithelial cells, and especially in the bile duct hyperplasia. Accumulation of CD4+ and IL-17+ cells and intense staining of the Foxp3+ marker were consistent with their protein levels. Infiltration of IL-17+ inflammatory cells and Foxp3+ cells, as well as increases in their transcription expression levels, were significantly lower in the melatonin-treated group. In contrast, increased CD4+ cell infiltration and TNF-alpha expression were also observed through melatonin treatment. CONCLUSION: Melatonin exerts an immunomodulatory effect, suppressing eosinophils and Th17 cells and expression of Foxp3, but enhancing CD4+ cells and TNF-alpha. This suggests that melatonin may be used for CCA chemoprevention. PMID- 29331795 TI - Development and validation of an UHPLC-MS/MS approach for simultaneous quantification of five bioactive saponins in rat plasma: Application to a comparative pharmacokinetic study of aqueous extracts of raw and salt-processed Achyranthes bidentata. AB - A simple, accurate and sensitive ultra high-performance liquid chromatography tandem mass spectrometry approach was established for the simultaneous determination of beta-ecdysterone, 25S-inokosterone, ginsenoside Ro, chikusetsusaponin IV and chikusetsusaponin IVa in rat plasma after oral administration of raw and salt-processed Achyranthes bidentata extract. The saponins were completely separated on a Waters BEH C18 UHPLC column by using acetonitrile/0.1% formic acid-water as mobile phases. The mass analysis was performed in a triple quadrupole mass spectrometer using multiple reaction monitoring (MRM) with negative scan mode. The sample preparations for protein removal were accomplished using a simple acetonitrile precipitation method. The calibration curves displayed good linearity (r2 > 0.9998) with the concentration ranges of 24.4-6100 ng mL-1, 25.6-6400 ng mL-1, 20.4-8500 ng mL-1, 21.6-5400 ng mL-1, 21.6-6100 ng mL-1 for the five saponins, respectively. The intra-day and inter-day precisions (RSD) of the five saponins were less than 3.95% and the bias of the accuracies ranged from -4.50% to 4.84%. The extraction recoveries of the five saponins ranged from 95.2% to 104.8% and the matrix effects were satisfactory. In comparison with the raw group, the parameters of Cmax and AUC0-t of beta-ecdysterone, 25S-inokosterone, ginsenoside Ro, and chikusetsusaponin IVa elevated remarkably (p < 0.05) after oral delivery of the extract of salt processed Achyranthes bidentata, which revealed that salt-processing could increase bioavailability of beta-ecdysterone, 25S-inokosterone, ginsenoside Ro and chikusetsusaponin IVa. PMID- 29331796 TI - Determination of meropenem in endotracheal tubes by in-tube solid phase microextraction coupled to capillary liquid chromatography with diode array detection. AB - Meropenem is a widely used antimicrobial for the treatment of infections associated with the use of invasive medical devices in intensive care unit patients. These treatments are not always effective, in fact, in-vitro studies have demonstrated the difficulty of antimicrobials to penetrate into the biofilm, however in-vivo studies of the effect of these compounds is a trend, mostly because of the complexity of pulmonary samples extracted from ETTs. Therefore, the objective of this study was to evaluate in-tube solid phase microextraction (in-tube SPME) coupled to capillary liquid chromatography (CapLC) with DAD to determine meropenem in ETTs in order to estimate the penetration capability into the biofilm. Firstly, different parameter affecting in-tube SPME, such as processed sample volume, capillary length, flow and capillary coating were studied. The best analytical response was achieved by processing 500 MUL of standards/samples at 9 MUL/seg with a 60-cm capillary column coated with 35% diphenyl 65%-polydimethylsiloxane. Under these conditions, the analytical performance of in-tube SPME-CapLC-DAD, using acetonitrile-water in gradient mode as mobile phase, showed satisfactory results for estimation of meropenem in terms of sensitivity (LOD = 3 MUg/L) and precision (RSD < 10%). Once the experimental conditions were stablished for in-tube SPME, the extraction of meropenem from the ETTs was studied. Liquid extraction, vortex-assisted liquid extraction (VALE) and ultrasound-extraction (UAE) extraction were tested. The results indicated that meropenem could be quantitatively extracted (91 +/- 6%) from ETTs, for its subsequent determination by in-tube SPME-CapLC-DAD using water as extraction solvent and 1 min as extraction time. Finally, samples from ETTs used for critically ill patients with different antimicrobial treatments were analysed with successful results. PMID- 29331797 TI - Application of polyacrylamide gel as a new membrane in electromembrane extraction for the quantification of basic drugs in breast milk and wastewater samples. AB - Introducing new membranes with green chemistry approach seems to be a great challenge for the development of a practical method in separation science. In this regard, for the first time, polyacrylamide gel as a new membrane in electromembrane extraction (EME) was used for the extraction of three model basic drugs (pseudoephedrine (PSE), lidocaine (LID), and propranolol (PRO)), followed by HPLC-UV. In comparison with conventional EME, in this method neither organic solvent nor carrier agents were used for extraction of mentioned drugs. Different variables for fabrication of polyacrylamide gel and extraction process were evaluated. Polyacrylamide gel (containing 12% (w/v) acrylamide, and 3.0% (w/w) bisacrylamide) with 2 mm thickness at pH = 1.5 was fabricated as membrane. The drugs were extracted from aqueous samples, through a polyacrylamide gel membrane, to an aqueous acceptor phase on membrane. Under the optimized extraction conditions (Voltage: 85 V, extraction time: 28 min, acceptor phase's pH: 4.0, and donor phase's pH: 7.0) limits of quantification and detection were in the ranges of 1.0-20.0 ng mL-1 and 0.3-6.0 ng mL-1, respectively. Applying the proposed method to determine and quantify intended drugs in breast milk, and wastewater samples have revealed acceptable results. PMID- 29331798 TI - Engaging students in a community of learning: Renegotiating the learning environment. AB - Promoting student engagement in a student led environment can be challenging. This article reports on the process of design, implementation and evaluation of a student led learning approach in a small group tutorial environment in a three year Bachelor of Nursing program at an Australian university. The research employed three phases of data collection. The first phase explored student perceptions of learning and engagement in tutorials. The results informed the development of a web based learning resource. Phase two centred on implementation of a community of learning approach where students were supported to lead tutorial learning with peers. The final phase constituted an evaluation of the new approach. Findings suggest that students have the capacity to lead and engage in a community of learning and to assume greater ownership and responsibility where scaffolding is provided. Nonetheless, an ongoing whole of course approach to pedagogical change would better support this form of teaching and learning innovation. PMID- 29331799 TI - The deepwater horizon oil spill coast guard cohort study: A cross-sectional study of acute respiratory health symptoms. AB - INTRODUCTION: Over 8500 United States Coast Guard (USCG) personnel were deployed in response to the Deepwater Horizon (DWH) oil spill; however, human respiratory effects as a result of spill-related exposures are relatively unknown. METHODS: USCG personnel who responded to the DWH oil spill were queried via survey on exposures to crude oil and oil dispersant, and acute respiratory symptoms experienced during deployment. Adjusted log binomial regressions were used to calculate prevalence ratios (PRs) and 95% confidence intervals (CI), investigating the associations between oil spill exposures and respiratory symptoms. RESULTS: 4855 USCG personnel completed the survey. More than half (54.6%) and almost one-fourth (22.0%) of responders were exposed to crude oil and oil dispersants, respectively. Coughing was the most prevalent symptom (19.4%), followed by shortness of breath (5.5%), and wheezing (3.6%). Adjusted analyses showed an exposure-response relationship between increasing deployment duration and likelihood of coughing, shortness of breath, and wheezing in the pre-capping period. A similar pattern was observed in the post-capping period for coughing and wheezing. Adjusted analyses revealed increased PRs for coughing (PR=1.92), shortness of breath (PR=2.60), and wheezing (PR=2.68) for any oil exposure. Increasing frequency of inhalation of oil was associated with increased likelihood of all three respiratory symptoms. A similar pattern was observed for contact with oil dispersants for coughing and shortness of breath. The combination of both oil and oil dispersants presented associations that were much greater in magnitude than oil alone for coughing (PR=2.72), shortness of breath (PR=4.65), and wheezing (PR=5.06). CONCLUSIONS: Results from the present study suggested strong relationships between oil and oil dispersant exposures and acute respiratory symptoms among disaster responders. Future prospective studies will be needed to confirm these findings. PMID- 29331800 TI - Nucleus accumbens mu opioid receptors regulate context-specific social preferences in the juvenile rat. AB - The MU opioid receptor (MOR) in the nucleus accumbens (NAc) is involved in assigning pleasurable, or hedonic value to rewarding stimuli. Importantly, the hedonic value of a given rewarding stimulus likely depends on an individual's current motivational state. Here, we examined the involvement of MORs in the motivation to interact with a novel or a familiar (cage mate) conspecific in juvenile rats. First, we demonstrated that the selective MOR antagonist CTAP administered into the NAc reduces social novelty preference of juvenile males, by decreasing the interaction time with the novel conspecific and increasing the interaction time with the cage mate. Next, we found that a 3-h separation period from the cage mate reduces social novelty preference in both juvenile males and females, which was primarily driven by an increase in interaction time with the cage mate. Last, we showed that MOR agonism (intracerebroventricularly or in the NAc) restored social novelty preference in juvenile males that did not show social novelty preference following social isolation. Taken together, these data support a model in which endogenous MOR activation in the NAc facilitates the relative hedonic value of novel over familiar social stimuli. Our results may implicate the MOR in neuropsychiatric disorders characterized by altered social motivation, such as major depression and autism spectrum disorder. PMID- 29331802 TI - Hair cortisol and work stress: Importance of workload and stress model (JDCS or ERI). AB - Hair cortisol concentrations (HCCs) are a potential physiological indicator of work related stress. However, studies that tested the relationship between HCC and self-reported stress in a work setting show mixed findings. This may be because few studies used worker samples that experience prolonged stress. Therefore, we compared a high workload sample (n = 81) and a normal workload sample (n = 91) and studied whether HCC was related to: (i) high job demands, low control, and low social support (JDCS model), and (ii) high effort, low reward, and high overcommitment (ERI model). Results showed that self-reported stress related to HCC only in the high workload sample and only for the variables of the ERI model. We found that HCC was higher when effort was high, reward low, and overcommitment high. An implication of this study is that a certain stress threshold may need to be reached to detect a relationship between self-reported stress and physiological measures such as HCC. PMID- 29331801 TI - Stressful life events, relationship stressors, and cortisol reactivity: The moderating role of suppression. AB - Stressful life events (SLEs) are exceedingly common and have been associated with a range of psychological disorders, perhaps through dysregulation in the hypothalamic-pituitary-adrenal (HPA) axis. The use of certain emotion regulation strategies in response to stress, such as expressive suppression and cognitive reappraisal, has additionally been linked to heightened HPA axis reactivity to acute stress. However, it is unclear how emotion regulation may interact with SLEs to affect HPA axis reactivity, particularly concerning relationship stressors (RSs). Using cross-sectional data from 117 men and 85 women aged 18-55 years old (M = 39.9 +/- 10.7), we investigated whether trait use of suppression or reappraisal interacted with recent negatively perceived SLEs and relationship stressors to impact HPA axis response to an acute stressor. Separate area under the curve and linear mixed models revealed that trait suppression interacted with SLEs and RSs to predict cortisol response to stress, while reappraisal did not. Findings indicate higher trait expressive suppression may influence the cortisol response to acute stress after exposure to more recent stressful events, particularly when those stressful events include relationship stress. PMID- 29331803 TI - Caspases are key regulators of inflammatory and innate immune responses mediated by TLR3 in vivo. AB - Understanding the key regulators which impact the innate immune response during initial phases of tissue injury, can advance the use of therapeutic approaches which aim at attenuating inflammation and organ damage. Recognition of microbial components by TLRs, initiates the transcription of innate immune signal pathways, that induce the expression of key inflammatory mediators: cytokines, chemokines and adhesion molecules. Beside regulating apoptotic cell death, recent studies have revealed distinct roles for caspases in the optimal production of inflammatory cytokines and host defense against injurious infections. Whether caspases can play an immune regulatory role in vivo has not been sufficiently investigated. This study aims to explore whether the pan caspase inhibitor z-VAD fmk can control inflammation and cytokine production subsequent to challenging the innate immunity of the exocrine secretory tissues in vivo. Submandibular glands (SMGs) of the C57BL/6 mice were challenged with the TLR3 stimulant: polyinosinic-polycytidylic acid (poly (I:C)). Results obtained from the current study provide evidence that caspases can control immune responses downstream of TLR3 ligation. The present work proposes a novel mechanism that can prevent overactivation of the innate immunity, which typically leads to fatal immune disorders. PMID- 29331804 TI - Toll-like receptor 9 antagonist suppresses humoral immunity in experimental autoimmune myasthenia gravis. AB - Recent studies have demonstrated the important role of toll-like receptor 9 (TLR9) signalling in autoimmune diseases, but its role in myasthenia gravis (MG) has not been fully established. We show herein that blocking TLR9 signalling via the suppressive oligodeoxynucleotide (ODN) H154 alleviated the symptoms of experimental autoimmune myasthenia gravis (EAMG). With the downregulation of dendritic cells (DCs), TLR9 interruption reduced follicular helper T cells (Tfh) and germinal centre (GC) B cells, leading to decreased antibody production. In addition, TLR9+ B cells as well as total B cells in the spleen were inhibited by H154. These findings highlight the critical role of TLR9 in EAMG and suggest that the inhibition of the TLR9 pathway might be a potential pharmacological strategy for the treatment of myasthenia gravis. PMID- 29331805 TI - Synthesis, characterization and anticancer activity in vitro and in vivo evaluation of an iridium (III) polypyridyl complex. AB - An iridium (III) complex [Ir(ppy)2(BDPIP)]PF6 (Ir-1) was reported to show high anticancer activity and may be used as a potent anticancer drug. In the current study, we designed and synthesized a novel iridium (III) complex and evaluated its potential inhibitory effect on the cancer cell growth in vitro and in vivo. This complex was found to display high cytotoxic activity in vitro and in vivo against A549 cell with a low IC50 value of 3.6 +/- 0.3 MUM and inhibiting percentage of tumor growth is 63.84% compared with the control. The complex also exhibited potencies superior to that of cisplatin toward A549 cell in vitro and in vivo. Further studies revealed that the complex can induce apoptosis and autophagy, enhance the ROS level, cause a decrease in the mitochondrial membrane potential and inhibit the cell invasion. Our findings indicated that the complex induced apoptosis in A549 through mitochondria dysfunction and PI3K/AKT/mTOR signaling pathways. PMID- 29331806 TI - Unifying in vitro and in vivo IVT mRNA expression discrepancies in skeletal muscle via mechanotransduction. AB - The translational efficiency of an in vitro transcribed (IVT) mRNA was measured upon delivery to primary skeletal muscle cells and to a mouse model system, towards the development of a predictive in vitro assay for the screening and validation of intramuscular mRNA-based vaccines. When IVT mRNA was delivered either naked or complexed with novel aminoglycoside-based delivery vehicles, significant differences in protein expression in vitro and in vivo were observed. We hypothesized that this previously anticipated discrepancy was due to differences in the mechanism of IVT mRNA endosomal entry and release following delivery. To address this, IVT mRNA was fluorescently labeled prior to delivery, to visualize its distribution. Colocalization with endosomal markers indicated that different entry pathways were utilized in vivo and in vitro, depending on the delivery vehicle, resulting in variations in protein expression levels. Since extracellular matrix stiffness (ECM) influences mRNA entry, trafficking and release, the effect of mechanotransduction on mRNA expression was investigated in vitro upon delivery of IVT mRNA alone, and complexed with delivery vehicles to skeletal muscle cells grown on ~10 kPa hydrogels. This in vitro hydrogel model more accurately recapitulated the results obtained in vivo upon IM injection, indicating that this approach may assist in the characterization of mRNA based vaccines. PMID- 29331807 TI - Clay nanoparticles for regenerative medicine and biomaterial design: A review of clay bioactivity. AB - Clay nanoparticles, composites and hydrogels are emerging as a new class of biomaterial with exciting potential for tissue engineering and regenerative medicine applications. Clay particles have been extensively explored in polymeric nanocomposites for self-assembly and enhanced mechanical properties as well as for their potential as drug delivery modifiers. In recent years, a cluster of studies have explored cellular interactions with clay nanoparticles alone or in combination with polymeric matrices. These pioneering studies have suggested new and unforeseen utility for certain clays as bioactive additives able to enhance cellular functions including adhesion, proliferation and differentiation, most notably for osteogenesis. This review examines the recent literature describing the potential effects of clay-based nanomaterials on cell function and examines the potential role of key clay physicochemical properties in influencing such interactions and their exciting possibilities for regenerative medicine. PMID- 29331809 TI - Environmental behavior of coated NMs: Physicochemical aspects and plant interactions. AB - The application of nanomaterials (NMs) depends on several characteristics, including polydispersity, shape, surface charge, and composition, among others. However, the specific surface properties of bare NMs induce aggregation, reducing their utilization. Thus, different surface coverages have been developed to avoid or minimize NMs aggregation, making them more stable for the envisioned applications. Carbon-based NMs are usually coated with metals, while metal-based NMs are coated with natural organic compounds including chitosan, dextran, alginate, or citric acid. On the other hand, the coating process is expected to modify the surface properties of the NMs; several coating agents add negative or positive charges to the particles, changing their interaction with the environment. In this review, we analyze the most recent literature about coating processes and the behavior of coated NMs in soil, water, and plants. In particular, the behavior of the most commercialized metal-based NMs, such as TiO2, ZnO, CeO2, CuO, Ag, and Au, and carbon-based NMs are discussed in this review. The available articles about the effects of coated NMs in plants are discussed. Up to now, there is no uniformity in the information to ensure that the surface coverage increases or decreases the effects of NMs in plants. While some parameters are increased, others are decreased. Since the data is contradictory in some cases, the available literature does not allow researchers to determine what concentrations benefit the plants. This review highlights current results and future perspectives on the study of the effects of coated NMs in the environment. PMID- 29331810 TI - Behavior of Cylindrospermopsis raciborskii during coagulation and sludge storage higher potential risk of toxin release than Microcystis aeruginosa? AB - Owing to the global warming and its strong adaptability, Cylindrospermopsis raciborskii has spread world-wide. However, as one of toxic cyanobacteria in many drinking water sources, it has not been drawn proper consideration in drinking water treatment plants so far. The investigation aimed at unveiling the fate of C. raciborskii during polyaluminum ferric chloride (PAFC) coagulation and sludge storage, revealing its differences from Microcystis aeruginosa. Results showed that C. raciborskii cells were effectively removed intactly under optimum coagulation conditions, but PAFC at higher dosages (>10 mg/L) triggered additional cylindrospermopsins release. In sludge storage, coagulated C. raciborskii cells suffered severe oxidative damage, leading to significant cylindrospermopsins release after day 6. C. raciborskii manifested different behaviors from M. aeruginosa which cells didn't release much microcystins during coagulation and sludge storage. This was mostly due to their differences in physiology and morphology. In flocs, M. aeruginosa could be enveloped by coagulant which can protect cells against the nasty attack from outside, whereas C. raciborskii with long filaments was hard to be wrapped and prone to suffering oxidative damage. These results confirmed C. raciborskii had a higher risk of toxin release in water production process than M. aeruginosa, which should deserve more attention. PMID- 29331808 TI - Simultaneous inhibition of hedgehog signaling and tumor proliferation remodels stroma and enhances pancreatic cancer therapy. AB - Pancreatic ductal adenocarcinoma (PDAC) is one of the deadliest cancers. It has an excessive desmoplastic stroma that can limit the intratumoral delivery of chemotherapy drugs, and protect tumor cells against radiotherapy. Therefore, both stromal and tumor compartments need to be addressed in order to effectively treat PDAC. We hereby co-deliver a sonic hedgehog inhibitor, cyclopamine (CPA), and a cytotoxic chemotherapy drug paclitaxel (PTX) with a polymeric micelle formulation (M-CPA/PTX). CPA can deplete the stroma-producing cancer-associated fibroblasts (CAFs), while PTX can inhibit tumor proliferation. Here we show that in clinically relevant PDAC models, M-CPA effectively modulates stroma by increasing microvessel density, alleviating hypoxia, reducing matrix stiffness while maintaining the tumor-restraining function of extracellular matrix. M-CPA/PTX also significantly extends animal survival by suppressing tumor growth and lowering the percentages of poorly to moderately differentiated tumor phenotypes. Our study suggests that using multifunctional nanoparticles to simultaneously target stromal and tumor compartments is a promising strategy for PDAC therapy. PMID- 29331811 TI - Volatile organic compounds (VOCs) removal in non-thermal plasma double dielectric barrier discharge reactor. AB - Non-thermal plasma (NTP) an emerging technology to treat volatile organic compounds (VOCs) present in unhygienic point source air streams. In present study, double dielectric barrier discharge (DDBD) reactors were used for the first time to evaluate the removal efficiency of VOCs mixture of different nature at constant experimental conditions (input power 16-65.8 W, VOCs mixture feeding rate 1-6 L/min, 100-101 ppm inlet concentration of individual VOC). Reactor A and B with discharge gap at 6 mm and 3 mm respectively, were used in current study. When treated at an input power of 53.7 W with gas feeding rate of 1 L/min in DDBD reactor A, removal efficiency of the VOCs were: tetrachloroethylene (100%), toluene (100%), trichloroethylene (100%), benzene (100%), ethyl acetate (100%) and carbon disulfide (88.30%); whereas in reactor B, the removal efficiency of all VOCs were 100%. Plasma-catalyst (Pt-Sn/Al2O3, BaTiO3 and HZSM-5) synergistic effect on VOCs removal efficiency was also investigated. Highest removal efficiency i.e 100% was observed for each compound with BaTiO3 and HZSM-5 at an input power 65.8 W. However, integrating NTP with BaTiO3 and HZSM-5 leads to enhanced removal performance of VOCs mixture with high activity, increase in energy efficiency and suppression of unwanted byproducts. PMID- 29331812 TI - Evidence of C--F-P and aromatic pi--F-P weak interactions in imidazolium ionic liquids and its consequences. AB - A simple change from alkyl group to alkene in side chain of imidazolium cation with same anion resulted in a drastic impact on physical properties (e.g., melting point) from bmimPF6 IL to cmimPF6 IL. The underlying reasons have been elucidated by structural and interaction studies with the help of DSC, SCXRD, vibrational and multi-nuclear NMR spectroscopic techniques. Experiments reveal existence of new weak interactions involving the carbon and pi cloud of the imidazolium aromatic ring with fluoride of PF6 anion (i.e., C2--F-P and pi--F-P) in cmimPF6 but are absent in structurally similar prototype IL, bmimPF6. Though weak, these interactions helped to form ladder type supramolecular arrangement, resulting in quite high melting point for cmimPF6 IL compared to bmimPF6 IL. These findings emphasize that an IL system can behave uniquely because of the existence of uncommon weak interactions. PMID- 29331813 TI - Comparative study of the efficiency of computed univariate and multivariate methods for the estimation of the binary mixture of clotrimazole and dexamethasone using two different spectral regions. AB - Three methods of analysis are conducted that need computational procedures by the Matlab(r) software. The first is the univariate mean centering method which eliminates the interfering signal of the one component at a selected wave length leaving the amplitude measured to represent the component of interest only. The other two multivariate methods named PLS and PCR depend on a large number of variables that lead to extraction of the maximum amount of information required to determine the component of interest in the presence of the other. Good accurate and precise results are obtained from the three methods for determining clotrimazole in the linearity range 1-12 MUg/mL and 75-550 MUg/mL with dexamethasone acetate 2-20 MUg/mL in synthetic mixtures and pharmaceutical formulation using two different spectral regions 205-240 nm and 233-278 nm. The results obtained are compared statistically to each other and to the official methods. PMID- 29331814 TI - Characterization of sp3 bond content of carbon films deposited by high power gas injection magnetron sputtering method by UV and VIS Raman spectroscopy. AB - This paper presents the results of investigations of carbon films deposited by a modified version of the magnetron sputtering method - HiPGIMS (High Power Gas Injection Magnetron Sputtering). In this experiment, the magnetron system with inversely polarized electrodes (sputtered cathode at ground potential and positively biased, spatially separated anode) was used. This arrangement allowed us to conduct the experiment using voltages ranging from 1 to 2kV and a power supply system equipped with 25/50MUF capacitor battery. Carbon films were investigated by VIS/UV Raman spectroscopy. Sp3/sp2 bonding ratio was evaluated basing the elementary components of registered spectra. Our investigation showed that sp3 bond content increases with discharge power but up to specific value only. In extreme conditions of generating plasma impulses, we detected a reversed relation of the sp3/sp2 ratio. In our opinion, a energy of plasma pulse favors nucleation of a sp3 phase because of a relatively higher ionization state but in extreme cases the influence of energy is reversed. PMID- 29331815 TI - Chemometric simultaneous determination of Sofosbuvir and Ledipasvir in pharmaceutical dosage form. AB - Partial least squares (PLS), different families of continuous wavelet transform (CWT), and first derivative spectrophotometry (DS) techniques were studied for quantification of Sofosbuvir (SFB) and Ledipasvir (LDV) simultaneously without separation step. The components were dissolved in Acetonitrile and the spectral behaviors were evaluated in the range of 200 to 400nm. The ultraviolet (UV) absorbance of LDV exhibits no interferences between 300 and 400nm and it was decided to predict the LDV amount through the classic spectrophotometry (CS) method in this spectral region as well. Data matrix of concentrations and calibrated models were developed, and then by applying a validation set the accuracy and precision of each model were studied. Actual concentrations versus predicted concentrations plotted and good correlation coefficients by each method resulted. Pharmaceutical dosage form was quantified by developed methods and the results were compared with the High Performance Liquid Chromatography (HPLC) reference method. Analysis Of Variance (ANOVA) in 95% confidence level showed no significant differences among methods. PMID- 29331816 TI - New robust sensitive fluorescence spectroscopy coupled with PLSR for estimation of quercetin in Ziziphus mucronata and Ziziphus sativa. AB - Flavonoids are natural antioxidants derived from plants and commonly found in a variety of foods to sequester free radicals. Quercetin, belonging to flavonol subclass of flavonoids, has received considerable attention because of its wide uses as a nutritional supplement as well as a phytochemical remedy for a number of diseases. In the current study, quantification of quercetin was carried out in two medicinally important flavonoid rich plant Ziziphus mucronata and Ziziphus sativa. Emission spectroscopy was utilized as a new method coupled with Partial Least Squares Regression (PLSR) and the cross validation was done by UV-Visible spectroscopy. The results indicated the higher quercetin content in Z. mucronata (1.50+/-0.034%) than Z. sativa (1.21+/-0.052%), and were further verified through Folin-Ciocalteu Colorimetric method (Z. mucronata; 1.41+/-0.26% and Z. sativa; 1.13+/-0.136%). In this study the sensitivity was explained in term of slope i.e. Slope=0.9973. PMID- 29331817 TI - Vapochromic behavior of MOF for selective sensing of ethanol. AB - A MOF material, Co3[Co(CN)6]2 nanoparticles has been prepared for the effective detection of ethanol in vapor phase. When exposed to ethanol vapor, the material was changed from pink to purple, which is easily observed by naked eyes directly. We propose that the ethanol response is due to ethanol molecules entering the pores of the solid, where they alter the coordination geometry, leading to conversion of their Co centers from octahedral to tetrahedral coordination. Significantly, the change is reversible, which make the material reusable without subjecting to dynamic vacuum or slightly warming. PMID- 29331818 TI - The effect of CaO/SiO2 molar ratio of CaO-Al2O3-SiO2 glasses on their structure and reactivity in alkali activated system. AB - The influence of CaO/SiO2 molar ratio of calcium aluminosilicate glasses on resulting structure and reactivity was investigated. Chemical compositions of glasses were chosen to mimic the composition of the fly ash and slag amorphous phase. Understanding the reactivity of these materials is of high importance allowing further development of the composite cements to limit the environmental footprint of cement industry. Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy were employed to examine the structure of glasses. Reactivity of the glasses was analyzed on paste samples after 1, 2, 7, 28 and 90days of curing by means of thermogravimetry (TGA), X-ray diffraction (XRD) and FTIR. Spectroscopic results emphasize dependence of the structure on the chemical composition of the glasses. The higher CaO/SiO2 the more depolymerized the glass network is, though there is no direct correlation with the reactivity. Significant differences in reactivity is observed primarily between the glasses of peraluminous (CaO/Al2O3<1) and percalcic region (CaO/Al2O3>1). Amongst the pastes made of glasses of percalcic region a higher degree of reaction at later ages is observed for the paste containing glass of lower CaO/SiO2 molar ratio. This is due to both degree of depolimerization and the nature of these glasses (pozzolanic and hydraulic materials). No difference of degree of reaction has been observed within the glasses of CaO/SiO2 lower than 1. PMID- 29331819 TI - New strategy for determination of anthocyanins, polyphenols and antioxidant capacity of Brassica oleracea liquid extract using infrared spectroscopies and multivariate regression. AB - A new method was developed to determine the antioxidant properties of red cabbage extract (Brassica oleracea) by mid (MID) and near (NIR) infrared spectroscopies and partial least squares (PLS) regression. A 70% (v/v) ethanolic extract of red cabbage was concentrated to 9 degrees Brix and further diluted (12 to 100%) in water. The dilutions were used as external standards for the building of PLS models. For the first time, this strategy was applied for building multivariate regression models. Reference analyses and spectral data were obtained from diluted extracts. The determinate properties were total and monomeric anthocyanins, total polyphenols and antioxidant capacity by ABTS (2,2-azino-bis(3 ethyl-benzothiazoline-6-sulfonate)) and DPPH (2,2-diphenyl-1-picrylhydrazyl) methods. Ordered predictors selection (OPS) and genetic algorithm (GA) were used for feature selection before PLS regression (PLS-1). In addition, a PLS-2 regression was applied to all properties simultaneously. PLS-1 models provided more predictive models than did PLS-2 regression. PLS-OPS and PLS-GA models presented excellent prediction results with a correlation coefficient higher than 0.98. However, the best models were obtained using PLS and variable selection with the OPS algorithm and the models based on NIR spectra were considered more predictive for all properties. Then, these models provided a simple, rapid and accurate method for determination of red cabbage extract antioxidant properties and its suitability for use in the food industry. PMID- 29331820 TI - Using vibrational molecular spectroscopy to reveal association of steam-flaking induced carbohydrates molecular structural changes with grain fractionation, biodigestion and biodegradation. AB - Advanced vibrational molecular spectroscopy has been developed as a rapid and non destructive tool to reveal intrinsic molecular structure conformation of biological tissues. However, this technique has not been used to systematically study flaking induced structure changes at a molecular level. The objective of this study was to use vibrational molecular spectroscopy to reveal association between steam flaking induced CHO molecular structural changes in relation to grain CHO fractionation, predicted CHO biodegradation and biodigestion in ruminant system. The Attenuate Total Reflectance Fourier-transform Vibrational Molecular Spectroscopy (ATR-Ft/VMS) at SRP Key Lab of Molecular Structure and Molecular Nutrition, Ministry of Agriculture Strategic Research Chair Program (SRP, University of Saskatchewan) was applied in this study. The fractionation, predicted biodegradation and biodigestion were evaluated using the Cornell Net Carbohydrate Protein System. The results show that: (1) The steam flaking induced significant changes in CHO subfractions, CHO biodegradation and biodigestion in ruminant system. There were significant differences between non-processed (raw) and steam flaked grain corn (P<.01); (2) The ATR-Ft/VMS molecular technique was able to detect the processing induced CHO molecular structure changes; (3) Induced CHO molecular structure spectral features are significantly correlated (P<.05) to CHO subfractions, CHO biodegradation and biodigestion and could be applied to potentially predict CHO biodegradation (R2=0.87, RSD=0.74, P<.01) and intestinal digestible undegraded CHO (R2=0.87, RSD=0.24, P<.01). In summary, the processing induced molecular CHO structure changes in grain corn could be revealed by the ATR-Ft/VMS vibrational molecular spectroscopy. These molecular structure changes in grain were potentially associated with CHO biodegradation and biodigestion. PMID- 29331821 TI - Influences of CdSe NCs on the photovoltaic parameters of BHJ organic solar cells. AB - In this study, the high quality CdSe nanocrystals (NCs) capped with stearic acid were synthesized in a solvent and then purified four times by using the precipitation and redissolution process. The average size of the synthesized CdSe NCs was determined ~3.0nm via transmission electron microscopy (TEM) measurement and their corresponding optical band edge energy was also calculated as ~2.1eV using ultraviolet-visible (UV-Vis) absorption spectroscopy. The bulk heterojunction (BHJ) hybrid solar cells based on a ternary system including P3HT, PCBM and CdSe NCs at different weight concentrations (0wt%, 0.1wt%, 0.5wt%, 1wt% and 2wt%) were fabricated by spin-casting process. The effect of the concentration of CdSe NCs on the photovoltaic parameters of these BHJ organic solar cells was investigated. The surface morphology of the photoactive layer modified by the incorporation of CdSe NCs into P3HT:PCBM matrix was observed with scanning electron microscopy (SEM). It was shown that when the concentration of CdSe NCs increases above 0.1wt% in this ternary system, the photovoltaic performance of the devices significantly decreases. The power conversion efficiency of the organic photovoltaic (OPV) device was enhanced ~20% by incorporating CdSe NCs with 0.1wt% with respect to those without CdSe NCs. PMID- 29331822 TI - Synthesis of UiO-66-OH zirconium metal-organic framework and its application for selective extraction and trace determination of thorium in water samples by spectrophotometry. AB - In this study, a zirconium-based metal-organic framework (Zr-MOF), named UiO-66 OH, was synthesized by the solvo-thermal method and characterized by Fourier transform-infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), and scanning electron microscopy (SEM). This Zr-MOF was then employed as a sorbent for selective extraction and preconcentration of thorium ions after their complexation with 2-(2,4-dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one (morin) from environmental water samples prior to its spectrophotometrical determination. The experimental parameters affecting extraction, such as pH of sample solution, amount of Zr-MOF, type and volume of eluting solvent, adsorption and desorption time, and concentration of complexing agent were evaluated and optimized. Under the optimized conditions, an enrichment factor of 250 was achieved. The limit of detection was calculated to be 0.35MUg.L-1 with a linear range between 10 and 2000MUg.L-1of thorium. The maximum sorption capacity of MOF toward thorium was found to be 47.5mg.g-1. The proposed procedure was successfully applied to the analysis of real water samples. PMID- 29331823 TI - Pre-pregnancy maternal depressive symptoms and low birth weight and preterm birth outcomes: Assessment of adolescent background characteristics and birth outcomes in adulthood. AB - PURPOSE: In the United States and other countries of the world , high prevalence of pre-pregnancy depressive symptoms and depression during pregnancy is an important public health concern, as they are associated with low birth weight (LBW) and preterm birth (PTB) outcomes in adulthood. However, the relationships among pre-pregnancy depressive symptoms, low birth weight, preterm birth outcomes and household characteristics have not been well established. METHODS: The study used data from 7120 adolescent female participants in the National Longitudinal Study of Adolescent to Adult Health data from Waves I (1994-1995 in-school interview), II (1996 as in-home), III (2001-2002 as in-home interview), IV (2008 as in-home interview) and Wave V is currently underway. The main outcomes were LBW and PTB. Maternal depressive symptoms were assessed with the Center for Epidemiologic Studies Depression scale (CES-D) using a cut-off point of 24 to indicate higher depressive symptoms . Odds ratios were used as an estimate of the relative risk using generalized estimating equations (GEE). RESULTS: In Wave I, prevalence of depressive symptoms among age groups 11-15 (54.1%) was higher than older adolescents (45.9%) were. With the exception of depressive symptoms reported in Wave II, respondents reporting depressive symptoms in Waves I and III had similar unadjusted rates of LBW or PTB infants in adulthood. Mothers reporting higher depressive symptoms in older adolescence (15-19 years) had elevated odds of LBW infants (3.58 [95% CI=1.81, 7.09]) in Wave III compared with others reporting low depressive symptoms. CONCLUSIONS: Undeniably, childhood socioeconomic circumstances are important determinants of disease risks and improved health functioning and in particular birth outcomes in adulthood. Since poorer households have fewer resources to cope with stressful events that generate mood and other depressive symptoms over the life course, findings of research suggest treating depressive symptoms prior to pregnancy will yield significant dividends for mothers and society. Furthermore, without careful control of household contexts, the association between depressive symptoms and birth outcomes is likely to be confounded. PMID- 29331824 TI - Effects of subject-case marking on agreement processing: ERP evidence from Basque. AB - Previous cross-linguistic research has found that comprehenders are immediately sensitive to various kinds of agreement violations across languages. We focused on Basque, a verb-final ergative language with both subject-verb (SV) and object verb (OV) agreement. We compared the effects of SV agreement violations on comprehenders' event-related brain potentials (ERPs) in transitive sentences (where OV agreement is present, and the subject is ergative) and intransitive sentences (where OV agreement is absent, and the subject is absolutive). We observed a P600 effect in both cases, but only violations with intransitive subjects elicited an early posterior negativity. Such a qualitative difference suggests that distinct neurocognitive mechanisms are involved in processing agreement with transitive subjects (which are marked with ergative case) versus intransitive subjects (which bear absolutive case). Building on theoretical proposals that in languages such as Basque, true agreement occurs with absolutive subjects but not with ergative subjects, we submit that the early posterior negativity may be an electrophysiological signature for true agreement. PMID- 29331825 TI - A novel strategy for the efficient removal of toxic cyanate by the combinatorial use of recombinant enzymes immobilized on aminosilane modified magnetic nanoparticles. AB - Cyanase detoxifies cyanate by transforming it to ammonia and carbon dioxide in a bicarbonate-dependent reaction, however, dependence on bicarbonate limits its utilization in large-scale applications. A novel strategy was therefore developed for overcoming this bottleneck by the combined application of cyanase (rTl-Cyn) and carbonic anhydrase (rTl-CA). The synergistic effect of rTl-Cyn and rTl-CA could reduce the dependence of bicarbonate by 80%, compared to using rTl-Cyn alone. Complete degradation of cyanate (4 mM) was achieved with buffered conditions and 85 +/- 5% degradation with industrial wastewater sample, when 20 U of rTl-Cyn was applied. Furthermore, a similar percentage of degradation was achieved using 80% less bicarbonate, when rTl-Cyn and rTl-CA were used together under identical conditions. In addition, rTl-Cyn and rTl-CA were immobilized onto the magnetic nanoparticles and their catalytic activity, stability and reusability were also evaluated. This is the first report on the synergistic biocatalysis by rTl-Cyn and rTl-CA, for cyanate detoxification. PMID- 29331826 TI - Pathway and mechanism of nitrogen transformation during composting: Functional enzymes and genes under different concentrations of PVP-AgNPs. AB - Polyvinylpyrrolidone coated silver nanoparticles (PVP-AgNPs) were applied at different concentrations to reduce total nitrogen (TN) losses and the mechanisms of nitrogen bio-transformation were investigated in terms of the nitrogen functional enzymes and genes. Results showed that mineral N in pile 3 which was treated with AgNPs at a concentration of 10 mg/kg compost was the highest (6.58 g/kg dry weight (DW) compost) and the TN loss (47.07%) was the lowest at the end of composting. Correlation analysis indicated that TN loss was significantly correlated with amoA abundance. High throughput sequencing showed that the dominant family of ammonia-oxidizing bacteria (AOB) was Nitrosomonadaceae, and the number of Operational Taxonomic Units (OTUs) reduced after the beginning of composting when compared with day 1. In summary, treatment with AgNPs at a concentration of 10 mg/kg compost was considerable to reduce TN losses and reserve more mineral N during composting. PMID- 29331827 TI - Pilot-scale outdoor photobioreactor culture of the marine dinoflagellate Karlodinium veneficum: Production of a karlotoxins-rich extract. AB - A pilot-scale bioprocess was developed for the production of karlotoxin-enriched extracts of the marine algal dinoflagellate Karlodinium veneficum. A bubble column and a flat-panel photobioreactors (80-281 L) were used for comparative assessment of growth. Flow hydrodynamics and energy dissipation rates (EDR) in the bioreactors were characterized through robust computational fluid dynamic simulations. All cultures were conducted monoseptically outdoors. Bubble column (maximum cell productivity in semicontinuous operation of 58 * 103 cell mL-1 day 1) proved to be a better culture system for this alga. In both reactors, the local EDR near the headspace, and in the sparger zone, were more than one order of magnitude higher than the average value in the whole reactor (=4 * 10-3 W kg 1). Extraction of the culture and further purification resulted in the desired KTXs extracts. Apparently, the alga produced three congeners KTXs: KmTx-10 and its sulfated derivative (sulfo-KmTx-10) and KmTx-12. All congeners possessed hemolytic activity. PMID- 29331828 TI - A recovery time after warming restores mitochondrial function and improves developmental competence of vitrified ovine oocytes. AB - The aim of the present study was to assess the ability of vitrified/warmed oocyte to recover from vitrification-induced damages after warming. In vitro matured, vitrified/warmed ovine oocytes were assessed for developmental competence, mitochondrial activity and distribution, ATP, ROS and catalase levels during 6 h of in vitro culture using fresh oocytes as control. ATP content in vitrified oocytes was lower than control during 4 h of post warming culture (p < .01). Vitrified oocytes were able to fill this gap only after 6 h of post-warming incubation. Moreover, mitochondrial activity was significantly lower (p < 0.01) in vitrified oocytes compared to controls, and this difference was maintained up to 2 h of incubation. Then the activity increased and at 4 h it was higher compared to controls (p < 0.01). These oocytes showed an increasing rate of clustered distribution of mitochondria which was lower than controls during the first 4 h of post warming culture (p < 0.01). ROS level was significantly higher at 0 h in vitrified compared to control oocytes and this difference was maintained also at 2 h and 6 h of incubation (p < 0.01). Catalase level was higher in vitrified oocytes than controls (p < 0.01) during the entire culture period. Cleavage and blastocyst rates were lower in vitrified oocytes compared to control ones during the two first time point of incubation period (p < .01), indeed they increased significantly from 0 to 4 h of incubation post warming (p < 0.01). The study demonstrated that vitrified/warmed oocytes need an extra time to restore damage due to cryopreservation procedures and to increase their developmental potential. Thus, time of damage recovery after vitrification could be used to standardize the vitrification protocols and to improve the developmental competence of vitrified/warmed oocytes. PMID- 29331829 TI - Additional small dose of prostaglandin F2alpha at timed artificial insemination failed to improve pregnancy risk of lactating dairy cows. AB - Two experiments were performed to test the hypothesis that administering PGF2alpha concurrent with timed artificial insemination (AI) in lactating dairy cows would enhance pregnancy per AI (P/AI). In experiment 1, lactating Holstein cows (n = 289) in one herd were enrolled after a non-pregnancy diagnosis (30-36 d after AI) to synchronize subsequent ovulation before AI. Cows were assigned randomly to receive (im) 10 mg of PGF2alpha concurrent with timed AI (Day 0; treatment) or no injection (control). Blood samples were collected on Days -3, 0, and 13 to determine serum concentrations of progesterone. Ovaries were scanned via transrectal ultrasonography to determine follicle diameters (Day -3), subsequent ovulation risk (Day 13), and total volume of luteal tissue (Day 13). Diagnosis of pregnancy occurred on Days 32 and 80 after AI. Ovulation risk post AI exceeded 90% and did not differ between treatments. In addition, PGF2alpha treatment only numerically increased progesterone (5.7 +/- 0.3 vs. 6.2 +/- 0.3 ng/mL) or luteal tissue volume (8.9 +/- 0.4 vs. 9.8 +/- 0.5 ng/mL) on Day 13 by 8.8% (P = .206) or 10.1% (P = .134) in control and treated cows, respectively. Pregnancy per AI at Days 32 (P = .50) and 80 (P = .33) did not differ between treatments. Cows with progesterone >0.5 ng/mL at timed AI had reduced (P < .001) ovulation risk but risk was unaffected by treatment. In experiment 2, lactating dairy cows (n = 1828) in two commercial dairy herds were enrolled at time of insemination (Day 0), and assigned randomly to treatment or control as described in experiment 1. Initial (Days 32-35) and confirmed (Days 63-68) pregnancy diagnosis revealed no differences in P/AI or pregnancy loss. Pregnancy diagnosis on Days 32-35 produced percentage increases in P/AI for primiparous compared with multiparous cows (20.8%; P = .002), for first-service compared with repeat service cows (26%; P = .001), and cows in one herd compared with the second herd (36%; P < .001). Pregnancy loss was greater (P = .001) for cows inseminated at first (10.0%) vs. later services (5.3%) but was unaffected by treatment. Cows treated with PGF2alpha in one herd produced more twins than control cows (11.7 vs. 3.2%), whereas no treatment difference was detected in the second herd (5.6 vs. 5.6%), respectively. We conclude that im treatment of lactating dairy cows with 10 mg of PGF2alpha concurrent with timed AI did not improve P/AI or embryo survival, but increased twinning in one herd. PMID- 29331830 TI - Fetal development of the Poeppig's woolly monkey (Lagothrix poeppigii). AB - The intrauterine development is an evolutionary strategy that prepares the neonate for extra-uterine life, thus providing important information on the life history of species. In this study, we described the external and internal morphology of 25 fetuses of Poeppig's woolly monkeys (Lagothrix poeppigii) by taking advantage of a 10-year participatory collection of biological samples originated from animals hunted for subsistence purposes in the Peruvian Amazon. Logistic regressions estimated the probability of occurrence of each external morphological characteristic in relation to the crown-rump length (CRL). The presence of nails, closed eyelids, differentiated genitalia and formed limbs with separation of the digits were observed in all analyzed fetuses (>=4.2 cm CRL). The other characteristics appeared in the following order: skin with epidermal pigmentation, oral and nasal mucosal pigmentation, tactile pelage and covering pelage. Although advanced fetuses (>15.8 cm CRL) showed most fetal external characteristics, they were not fully developed and no specimen showed tooth eruption or opened eyelids. The growth formula used to determine fetal age was ?W = 0.042 (t - 45), with a high linear relationship between CRL and gestational age. All associations between the external biometry, absolute volume of internal organs and the CRL had a high coefficient of determination. Advanced fetuses and adults showed similar relative volume of thoracic and abdominal organs, except for thymus and the liver with a higher and lower relative volume, respectively. The relative volume of the tubular gastrointestinal tract and the thymus had a constant increase along fetal development, and the liver showed a significant decrease. This study describes important morphological events for understanding the gestational development in the Lagothrix genus. In addition, these results may be useful to improve imaging techniques, contributing to the in situ and ex situ reproductive management of this highly hunted species in the Amazon. PMID- 29331831 TI - Effect of bone morphogenetic proteins 2 and 4 on survival and development of bovine secondary follicles cultured in vitro. AB - This study evaluated the effect of bone morphogenetic proteins 2 (BMP2) and 4 (BMP2) on follicle development and mRNA expression for GDF9, Cyclin B1, BMPR1A, BMPR1B, BMPRII, FSHR and SMAD1 in bovine secondary follicles cultured in vitro. Isolated secondary follicles were cultured for 18 days in TCM199+ medium alone or supplemented with BMP2 (10 ng/mL), BMP4 (100 ng/mL) or combination of both BMP2 and 4. Real-time PCR was used to analyze mRNA levels in fresh and cultured follicles. After 18 days of culture, follicles cultured with BMP2 alone or with BMP4 alone had larger diameters when compared to control (P < .05). In addition, all treatments promoted antrum formation and maintained a high viability rate through the growing period. The presence of BMP2, BMP4 or both together did not influence mRNA expression for the tested genes. However, the in vitro culture induces down-regulation for mRNA expression of BMPR1A. In conclusion, the addition of BMP2 or BMP4 alone in cultured medium promotes follicular growth and antrum formation in bovine follicles after 18 days of in vitro culture. PMID- 29331832 TI - Investigations on a cryopreservation protocol for long-term storage of psittacine spermatozoa using cockatiel semen as an example. AB - The aim of the present study was the establishment of an effective protocol for cryopreservation of psittacine semen. Therefore, pooled semen samples of 30 cockatiels (Nymphicus hollandicus) were diluted with modified Lake diluent (1:4), partitioned into four equal parts. Three portions were mixed with three cryoprotectants (dimethylacetamide, dimethyl sulfoxide, glycerol) in 4%, 8% and 12% final concentration, respectively, whereas the 4rth part served as control. Altogether, 96 incremental diluted semen samples were obtained for investigation. Each cryoprotective agent (CPA) in each final concentration was evaluated regarding sperm motility immediately after dilution and another four times every 30 min. Sperm viability was evaluated 0 and 120 min after dilution using the fluorescence stain SYBR(r) Green/propidium iodide. Sperm morphology was evaluated 0 and 120 min after dilution using eosin B stains. Glycerol demonstrated a lethal effect on cockatiel spermatozoa in all concentrations, whereas dimethylacetamide (DMA) in 8% final concentration proved to have the least adverse effect on semen parameters. Comparison of quick and slow freezing methods using DMA 8% revealed significantly higher rates of viable and motile spermatozoa after computer controlled rate freezing. Two insemination experiments resulted in an egg fertility rate of 92.59% and 67.65% after artificial insemination with freshly collected semen samples, compared to 30.77% and 18.00% egg fertility rates using frozen/thawed semen. Altogether, 12 chicks hatched out of eggs inseminated with cryopreserved semen. To our knowledge, this is the first time for cockatiels to be successfully reproduced after artificial insemination using cryopreserved semen. PMID- 29331833 TI - Potential factors that impact the radon level and the prediction of ambient dose equivalent rates of indoor microenvironments. AB - This study aimed to measure the equilibrium equivalent radon (EECRn) concentration in an old building (Building-1) and a new building (Building-2) with mechanical ventilation and a natural ventilation system, respectively. Both buildings were located at the campus of University Kebangsaan Malaysia. The concentration of indoor radon was measured at 25 sampling stations using a radon detector model DOSEman PRO. The sampling was conducted for 8 h to represent daily working hours. A correlation of the radon concentration was made with the annual inhalation dose of the occupants at the indoor stations. The equilibrium factor and the annual effective dose on the lung cancer risks of each occupant were calculated at each sampling station. The average equilibrium equivalent radon measured in Building-1 and Building-2 was 2.33 +/- 0.99 and 3.17 +/- 1.74 Bqm-3, respectively. The equilibrium factor for Building 1 ranged from 0.1053 to 0.2273, and it ranged from 0.1031 to 0.16 for Building 2. The average annual inhalation doses recorded at Building-1 and Building-2 were 0.014 +/- 0.005 mSv y-1 and 0.020 +/- 0.013 mSv y-1, respectively. The annual effective dose for Building-1 was 0.034 +/- 0.012 mSv y-1, and it was 0.048 +/- 0.031 mSv y-1 for Building-2. The values of equilibrium equivalent radon concentration for both buildings were below the standard recommended by the International Commission on Radiological Protection (ICRP). However, people may have different radon tolerance levels. Therefore, the inhalation of the radon concentration can pose a deleterious health effect for people in an indoor environment. PMID- 29331834 TI - Land-Water-Food Nexus and indications of crop adjustment for water shortage solution. AB - While agriculture places the greatest demand on water resources, increasing agricultural production is worsening a global water shortage. Reducing the cultivation of water-consuming crops may be the most effective way to reduce agricultural water use. However, when also taking food demand into consideration, sustaining the balance between regional water and food securities is a growing challenge. This paper addresses this task for regions where water is unsustainable for food production (Beijing-Tianjin-Hebei Region for example) by: (i) assessing the different effects of wheat and maize on water use; (ii) analyzing virtual water and virtual land flows associated with food imports and exports between Beijing-Tianjin-Hebei and elsewhere in China; (iii) identifying sub-regions where grain is produced using scarce water resources but exported to other regions; and (iv) analyzing the potentiality for mitigating water shortage via Land-Water-Food Nexus. In the Beijing-Tianjin-Hebei Region, the study reveals that 29.76 bn m3 of virtual water (10.81 bn m3 of blue virtual water) are used by wheat and maize production and 8.77 bn m3 of virtual water used in nearly 2 million ha of cropland to overproduce 12 million ton of maize for external food consumption. As an importing-based sub-region with high population density, Beijing & Tianjin imported mostly grain (wheat and maize) from Shandong Province. Then, Hebei Province, as an exporting-based sub-region with severe water shortage, overproduced too much grain for other regions, which aggravated the water crisis. To achieve an integrated and sustainable development of the Beijing Tianjin-Hebei Region, Hebei Province should stop undertaking the breadbasket role for Beijing & Tianjin and pay more attention to groundwater depletion. The analysis of the Land-Water-Food Nexus indicates how shifts in cultivated crops can potentially solve the overuse of water resources without adverse effects on food supply. It also provides meaningful information to support policy decisions about regional cropping strategies. PMID- 29331835 TI - Integrating priority areas and ecological corridors into national network for conservation planning in China. AB - Considering that urban expansion and increase of human activities represent important threats to biodiversity and ecological processes in short and long term, developing protected area (PA) network with high connectivity is considered as a valuable conservation strategy. However, conservation planning associated with the large-scale network in China involves important information loopholes about the land cover and landscape connectivity. In this paper, we made an integrative analysis for the identification of conservation priority areas and least-cost ecological corridors (ECs) in order to promote a more representative, connected and efficient ecological PA network for this country. First, we used Zonation, a spatial prioritization software, to achieve a hierarchical mask and selected the top priority conservation areas. Second, we identified optimal linkages between two patches as corridors based on least-cost path algorithm. Finally, we proposed a new framework of China's PA network composed of conservation priority and ECs in consideration of high connectivity between areas. We observed that priority areas identified here cover 12.9% of the region, distributed mainly in mountainous and plateau areas, and only reflect a spatial mismatch of 19% with the current China's nature reserves locations. From the perspective of conservation, our result provide the need to consider new PA categories, specially located in the south (e.g., the middle-lower Yangtze River area, Nanling and Min-Zhe-Gan Mountains) and north regions (e.g., Changbai Mountains), in order to construct an optimal and connected national network in China. This information allows us better opportunities to identify the relative high-quality patches and draft the best conservation plan for the China's biodiversity in the long-term run. PMID- 29331836 TI - Effects of ZnO nanoparticles in the Caspian roach (Rutilus rutilus caspicus). AB - Most studies investigating the toxicity of zinc oxide nanoparticles (ZnO NPs) focused on the effect of size, whereas exposure concentration and duration remained poorly understood. In this study, the effect of acute and sub-acute exposures of ZnO NPs on Zn compartmentalization and biomarkers' expression were investigated in Rutilus rutilus caspicus (Caspian roach) considering various exposure scenarios: i) the assessment of the concentration-response curves and median lethal concentration (LC50); ii) the assessment of the effects of organisms exposed at LC50 value and one tenth of LC50 value of ZnO NPs suspensions for 4 d and 28 d, respectively; iii) the assessment of 14 d depuration period. The same concentrations of ZnSO4 were investigated. The highest Zn accumulation was detected in gill after sub-acute exposure (4.8 mg/L; 28 d) followed by liver, kidney and muscle. In gill, liver and muscle, Zn from Zn NPs accumulated higher concentrations. Depuration (14 d) decreased Zn content in each organ, but no complete removal occurred except for muscle. Biomarkers' activity was significantly over expressed after treatments, but depuration brought back their values to background levels and most effects were related to acute concentrations (48 mg/L; 4 d) and in presence of ZnSO4. Histopathological analyses showed that the exposure to ZnO NPs increased lesions in gill, liver and kidney, with a direct proportionality between alterations and Zn accumulated in the target organs. After depuration, lesions regressed for both ZnO NPs and ZnSO4, but not in a complete way. These data could contribute to increase the knowledge about ZnO NPs risk assessment in aquatic vertebrates, suggesting that the size of ZnO NPs can influence biomarker and histopathological effects. PMID- 29331837 TI - Spontaneous focusing on numerosity in preschool as a predictor of mathematical skills and knowledge in the fifth grade. AB - Previous studies in a variety of countries have shown that there are substantial individual differences in children's spontaneous focusing on numerosity (SFON), and these differences are positively related to the development of early numerical skills in preschool and primary school. A total of 74 5-year-olds participated in a 7-year follow-up study, in which we explored whether SFON measured with very small numerosities at 5 years of age predicts mathematical skills and knowledge, math motivation, and reading in fifth grade at 11 years of age. Results show that preschool SFON is a unique predictor of arithmetic fluency and number line estimation but not of rational number knowledge, mathematical achievement, math motivation, or reading. These results hold even after taking into account age, IQ, working memory, digit naming, and cardinality skills. The results of the current study further the understanding of how preschool SFON tendency plays a role in the development of different formal mathematical skills over an extended period of time. PMID- 29331838 TI - Association of CAST2, HSP90AA1, DNAJA1 and HSPB1 genes with meat tenderness in Nellore cattle. AB - The objective of this study was to evaluate the association of expression of CAPN1, CAPN2, CAST, HSP90AA1, DNAJA1 and HSPB1 genes with meat tenderness in Nellore cattle. Three experimental groups were selected by shear force (SF): moderately tender (SF=34.3+/-5.8N), moderately tough (SF=56.8+/-7.8N), and very tough meat (SF=80.4+/-15N). Gene expression was evaluated by real-time PCR. Expression of the CAPN1, CAPN2, CAST and CAST1 genes did not differ between groups. Expression of the CAST2 was up-regulated (P<0.05) in the moderately tough and very tough meat groups. Down-regulation of the HSP90AA1, DNAJA1 and HSPB1 genes (P<0.05) was observed in the moderately tender meat group. The present results suggest that meat tenderness in Nellore cattle does not directly depend on the expression of the CAPN1 and CAPN2 genes, but is associated with the expression of other genes such as CAST2, HSP90AA1, DNAJA1 and HSPB1. PMID- 29331839 TI - Functional characterization of a novel hERG variant in a family with recurrent sudden infant death syndrome: Retracting a genetic diagnosis. AB - Long QT syndrome (LQTS) is the most common cardiac ion channelopathy and has been found to be responsible for approximately 10% of sudden infant death syndrome (SIDS) cases. Despite increasing use of broad panels and now whole exome sequencing (WES) in the investigation of SIDS, the probability of identifying a pathogenic mutation in a SIDS victim is low. We report a family-based study who are afflicted by recurrent SIDS in which several members harbor a variant, p.Pro963Thr, in the C-terminal region of the human-ether-a-go-go (hERG) gene, published to be responsible for cases of LQTS type 2. Functional characterization was undertaken due to the variable phenotype in carriers, the discrepancy with published cases, and the importance of identifying a cause for recurrent deaths in a single family. Studies of the mutated ion channel in in vitro heterologous expression systems revealed that the mutation has no detectable impact on membrane surface expression, biophysical gating properties such as activation, deactivation and inactivation, or the amplitude of the protective current conducted by hERG channels during early repolarization. These observations suggest that the p.Pro963Thr mutation is not a monogenic disease-causing LQTS mutation despite evidence of co-segregation in two siblings affected by SIDS. Our findings demonstrate some of the potential pitfalls in post-mortem molecular testing and the importance of functional testing of gene variants in determining disease-causation, especially where the impacts of cascade screening can affect multiple generations. PMID- 29331840 TI - Post mortem vitreous magnesium in adult population. AB - BACKGROUND: The study of post mortem vitreous magnesium (Mg) is less common than sodium (Na), chloride (Cl) and potassium (K) in the forensic literature. There is no accepted normal range for post mortem vitreous Mg and the relationship between post mortem vitreous Mg levels and post mortem interval (PMI), other electrolyte levels, disease conditions, age and sex have not been fully established. AIM: To investigate the relationship of post mortem vitreous Mg with age, sex, PMI, vitreous electrolyte levels and diabetic status. METHODS: A retrospective study of 20 consecutive cases of diabetics and 20 non-diabetic adult deaths was performed. Spearman correlation and the permutation test were used to explore the relationship between post mortem vitreous Mg and continuous and categorical variables respectively. RESULTS: The mean post mortem vitreous Mg was 1.03mmol/L (95%CI: 0.98-1.08mmol/L). The absolute Spearman correlation coefficients (rho) between post mortem vitreous Mg with PMI, age, and other vitreous electrolytes (Na, Cl, and K) ranged between 0.04-0.21 (p>0.19). Post mortem vitreous Mg was statistically higher in diabetics (mean difference: 0.08mmol/L; area-under-the curve=0.65 on receiver-operator-characteristic curve). No statistical difference was demonstrated between sexes (p=0.92). CONCLUSIONS: In our adult population, post mortem vitreous Mg did not correlate with age, PMI, other vitreous electrolytes (sodium, chloride and potassium) or sex. It was higher in diabetics, however had limited utility as a surrogate marker. Overall, post mortem Mg is steady in the early post mortem period with a mean of 1.03mmol/L. PMID- 29331841 TI - Culture beats gender? The importance of controlling for identity- and parenting related risk factors in adolescent psychopathology. AB - This study analyzed the unique effects of gender and culture on psychopathology in adolescents from seven countries after controlling for factors which might have contributed to variations in psychopathology. In a sample 2259 adolescents (M = 15 years; 54% female) from France, Germany, Turkey, Greece, Peru, Pakistan, and Poland identity stress, coping with identity stress, maternal parenting (support, psychological control, anxious rearing) and psychopathology (internalizing, externalizing and total symptomatology) were assessed. Due to variations in stress perception, coping style and maternal behavior, these covariates were partialed out before the psychopathology scores were subjected to analyses of variance with gender and country as factors. These analyses leveled out the main effect of country and revealed country-specific gender effects. In four countries, males reported higher internalizing and total symptomatology than females. Partialing out the covariates resulted in a clearer picture of culture specific and gender-dependent effects on psychopathology, which is helpful in designing interventions. PMID- 29331842 TI - Predicting 1-year disability and mortality of injured older adults. AB - PURPOSE: The growing incidence of elderly patients injured from falls, combined with a growing understanding of the contribution of cognition and frailty to mortality, prompted this work. Our objective was to develop a clinical risk prediction model for prognosticating disability and mortality among injured older adults 1 year after hospitalization. METHODS: Secondary analysis of prospective longitudinal data from an urban Level 1 trauma center. A proportional odds regression model was used to model mortality and functional status as ordinal outcomes. Death was treated as the lowest functional status, and 3 ordered groups of the Barthel Index were treated as higher functional status. 188 patients aged 65 and older who were admitted through the emergency department from 2013 to 2014 with a primary injury diagnosis comprised the prospective cohort. Follow-up assessments were performed at 30-days, 90-days, 6-months, and 1-year. Predictors in the model included: baseline physical function, baseline cognition, two physical frailty measures, age, injury severity, a comorbidity index, gender, living location, mechanism of injury, and hospital admitting service. RESULTS: The full model yielded an R2 of 0.45, and Life Space Assessment, Vulnerable Elders Survey, and Injury Severity were the most influential predictors. Approximated models (to encourage clinical use) yielded an R2 of 0.86. Calibration assessment (i.e., accuracy) demonstrated a mean squared error <0.003 at all 3 intercepts. CONCLUSIONS: A moderate statistical signal was discovered that contributed to a highly accurate clinical prediction model. Approximated models and nomograms could be used by clinicians, patients, and families in shared decision making during hospitalization. PMID- 29331843 TI - Performance of genotypic algorithms for predicting tropism for HIV-1 CRF01_AE recombinant. AB - OBJECTIVES: There is no consensus about the performances of genotypic rules for predicting HIV-1 non-B subtype tropism. Three genotypic methods were compared for CRF01_AE HIV-1 tropism determination. METHODS: The V3 env region of 207 HIV-1 CRF01_AE and 178 B subtypes from 17 centers in France and 1 center in Switzerland was sequenced. Tropism was determined by Geno2Pheno algorithm with false positive rate (FPR) 5% or 10%, the 11/25 rule or the combined criteria of the 11/25, net charge rule and NXT/S mutations. RESULTS: Overall, 72.5%, 59.4%, 86.0%, 90.8% of the 207 HIV-1 CRF01_AE were R5-tropic viruses determined by Geno2pheno FPR5%, Geno2pheno FPR10%, the combined criteria and the 11/25 rule, respectively. A concordance of 82.6% was observed between Geno2pheno FPR5% and the combined criteria for CRF01_AE. The results were nearly similar for the comparison between Geno2pheno FPR5% and the 11/25 rule. More mismatches were observed when Geno2pheno was used with the FPR10%. Neither HIV viral load, nor current or nadir CD4 was associated with the discordance rate between the different algorithms. CONCLUSION: Geno2pheno predicted more X4-tropic viruses for this set of CRF01_AE sequences than the combined criteria or the 11/25 rule alone. For a conservative approach, Geno2pheno FPR5% seems to be a good compromise to predict CRF01_AE tropism. PMID- 29331844 TI - Assessing the risk of CMV reactivation and reconstitution of antiviral immune response post bone marrow transplantation by the QuantiFERON-CMV-assay and real time PCR. AB - BACKGROUND: CMV reactivation is a major cause of severe complications in allogeneic hematopoietic stem cell transplant (HSCT) recipients. The risk of CMV reactivation depends on the serostatus (+/-) of the donor (D) and recipient (R). The reconstitution of CMV-specific T-cell responses after transplantation is crucial for the control of CMV reactivation. OBJECTIVES: The study aimed to determine the cellular immune status correlating with protection from high-level CMV viremia (>5000 copies/ml) and disease. STUDY DESIGN: We monitored CMV specific cellular immune responses in 9 high-risk (D-/R+), 14 intermediate risk (D+/R+) and 3 low risk individuals (D+/R-), and 8 CMV negative controls (D-/R-). Interferon- gamma (IFN-gamma) levels as a marker for the CD8+ T-cell response were determined by the QuantiFERON-CMV-assay and compared to viral loads determined by PCR. RESULTS: Early CMV reactivation was detected in all high-risk and 13/14 intermediate risk individuals. High-level viremia was detected in 5/7 high and 7/14 intermediate risk patients. Reconstitution of the CMV-specific cellular immune response started from 3 months after transplantation and resulted in protection against CMV reactivation. Re-establishing of CMV-specific T-cell immune responses with IFN- gamma levels >8.9 IU/ml is crucial for protection from high-level CMV viremia. CONCLUSIONS: Monitoring of HSCT-recipients with the QuantiFERON-CMV-assay might be of great benefit to optimize antiviral treatment. PMID- 29331845 TI - Effect of levetiracetam on extracellular amino acid levels in the dorsal hippocampus of rats with temporal lobe epilepsy. AB - Levetiracetam (LEV) is an anticonvulsant drug with a unique mechanism of action that is not completely understood. However, its activity profile may involve effects on excitatory and/or inhibitory neurotransmission since the primary target of LEV, synaptic vesicle protein 2A, is ubiquitously expressed in all types of synaptic vesicles. Therefore, the objective of the present study was to explore the effect of LEV (300 mg/kg/day for one week, administered via osmotic mini-pumps) on neurotransmitter release and its probable selective effect on extracellular gamma-amino butyric acid (GABA), glutamate (Glu), aspartate (Asp), glutamine (Gln), taurine (Tau) and glycine (Gly) concentrations (using in vivo microdialysis under basal and high-K+ conditions) in the dorsal hippocampus (DH), a region that undergoes major synaptic changes during epilepsy. Epileptic rats developed clear signs of hyperexcitability, i.e., an elevated Glu/GABA ratio in the DH. The LEV concentration in blood after 7 days of treatment was within the therapeutic range. In contrast, LEV was not detected four days after mini-pump removal (washout period). Furthermore, LEV restored the Glu/GABA ratio to approximately the control level and significantly increased the GABA concentration after the initiation of high-K+ conditions. Based on these data, LEV treatment restored the lost balance between the excitatory and inhibitory systems under basal conditions. Moreover, LEV showed a selective effect by preferentially increasing vesicular release of GABA, a mechanism by which LEV could reduce epileptic seizures. PMID- 29331846 TI - Functional neuroimaging in Rasmussen syndrome. AB - PURPOSE: For a diagnosis of Rasmussen syndrome (RS), clinical course together with electroencephalography (EEG) and magnetic resonance imaging (MRI) findings are considered important, but there are few reports on functional neuroimaging. This study investigated cerebral blood flow (CBF)-single photon emission computed tomography (SPECT), central benzodiazepine receptor (BZR)-SPECT, and fluorine-18 fluorodeoxy glucose-positron emission tomography (FDG-PET) in RS patients, and correlated neuroimaging results with MRI and pathological findings. METHODS: Twenty-three patients diagnosed with RS according to Bien's (2005) diagnostic criteria (including 12 patients with a histological diagnosis) were studied. CBF SPECT, BZR-SPECT and FDG-PET images were visually evaluated, and the findings correlated with MRI and histological findings. RESULTS: Hypoperfusion areas were observed in 16 of 22 patients by interictal CBF-SPECT. Hyperperfusion areas were observed in 10 of 12 patients by ictal CBF-SPECT, which correlated with ictal onset area by ictal EEG (IOAE). In the limited data of BZR-SPECT in nine patients, lowered uptake was detected in all nine patients, including two with no MRI abnormalities. Lowered glucose metabolism was observed in affected areas in all five patients by FDG-PET. Histological examination revealed findings of chronic encephalitis in all 12 patients examined, concomitant with focal cortical dysplasia in five patients. CONCLUSION: In RS patients, functional neuroimaging reveals clear abnormal findings, even before the appearance of MRI abnormalities. BZR-SPECT and FDG-PET could detect the IOAE efficiently even in the absence of MRI abnormalities, while interictal CBF-SPECT occasionally failed to detect IOAE if MRI was normal. Based on BZR-SPECT, refractory epileptic seizures in RS may suggest possible impairment of inhibitory neurons. PMID- 29331847 TI - Longitudinal hippocampal and extra-hippocampal microstructural and macrostructural changes following temporal lobe epilepsy surgery. AB - OBJECTIVES: 1) Characterize the evolution of microstructural changes in the contralateral, non-operated hippocampus-using longitudinal diffusion tensor imaging (DTI)-following surgery for temporal lobe epilepsy (TLE). 2) Characterize the downstream extra-hippocampal volumetric changes of the fornix and mammillary bodies after TLE surgery. 3) Examine the relationship between these measures and seizure/cognitive outcome. METHODS: Serial structural and DTI brain MRI scans were collected in 25 TLE patients pre- and post-surgery (anterior temporal lobectomy, ATL - 13; selective amygdalohippocampectomy, SelAH - 12) and in 12 healthy controls. Contralateral hippocampal fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD) and radial diffusivity (RD) were computed with manual hippocampal tracings as volumes of interest following co registration to anatomical images. Fornix and mammillary body volumetry was performed by manual segmentation. RESULTS: After surgery, the non-resected hippocampus showed significant postoperative decline in FA (p = 0.0001), with increase of MD (p = 0.01) and RD (p = 0.0001). In contrast to the timing of our previously reported volume changes where atrophy is observed in the first week, diffusion changes occurred late, taking 1-3 years to develop and are not significant at one week after surgery. Diffusion changes are accompanied by delayed limbic circuit volume loss in the mammillary bodies (35%; p < 0.0001) and fornix (24%; p < 0.0001) compared to baseline. There was no correlation between postoperative diffusion or structural changes and memory score nor did the degree of postoperative change in hippocampal DTI parameters, mammillary body volume or fornix volume vary significantly based on seizure outcome. SIGNIFICANCE: Differences observed in the timing of postoperative volume (first week) and FA/MD (one year) changes would suggest that early contralateral hippocampal atrophy is not secondary to fluid shifts (dehydration) while the late DTI changes suggest ongoing microstructural changes extending beyond the early postoperative period. Postoperative hippocampal diffusion changes are accompanied by delayed mammillary body and fornix volume loss which did not differ when stratified by seizure outcome nor was correlated with degree of hippocampal diffusion change. Finally, we did not identify any significant correlation between postoperative diffusion parameter change and memory performance. PMID- 29331848 TI - Repetitive transcranial magnetic stimulation for apathy in mild cognitive impairment: A double-blind, randomized, sham-controlled, cross-over pilot study. AB - Apathy is a common and disabling behavioral concomitant of many neurodegenerative conditions. The presence of apathy with Mild Cognitive Impairment (MCI) is linked with heightened rates of conversion to Alzheimer's disease. Improving apathy may slow the neurodegenerative process. The objective was to establish the efficacy of repetitive transcranial magnetic stimulation (rTMS) in improving apathy in older adults with MCI. An 8-week, double-blind, randomized, sham-controlled cross over study was conducted in nine subjects (66 +/- 9 years) with apathy and MCI. Subjects were randomized to rTMS or sham treatment (5 days/week) for 2 weeks following which they underwent a 4-week treatment-free period. Subjects then crossed-over to receive the other treatment for 2 weeks. The primary (apathy (AES C)) and secondary (cognition (3MS & MMSE), executive function (TMT-A & TMT-B), and clinical global impression (CGI)) outcomes were assessed at baseline, 2, 6, and 8 weeks. After adjusting for baseline, there was a significantly greater improvement in the AES-C with rTMS compared to sham treatment at 2 weeks. There was significantly greater improvement in 3MS, MMSE, TMT-A, and CGI-I with rTMS compared to the sham treatment. This study establishes that rTMS is efficacious in improving apathy in subjects with MCI. PMID- 29331849 TI - Sociodemographic, lifestyle and health determinants of suicidal behaviour in Malaysia. AB - Suicide has become a serious matter in both developed and developing countries. The objective of the present study is to examine the factors affecting suicidal behaviour among adults in Malaysia. A nationally representative data which consists of 10,141 respondents is used for analysis. A trivariate probit model is utilised to identify the probability of having suicide ideation, suicide plan and suicide attempt. Results of the regression analysis show that to ensure unbiased estimates, a trivariate probit model should be used instead of three separate probit models. The determining factors of suicidal behaviour are income, age, gender, ethnicity, education, marital status, self-rated health and being diagnosed with diabetes and hypercholesterolemia. The likelihood of adopting suicidal behaviour is lower among higher income earners and older individuals. Being male and married significantly reduce the propensity to engage in suicidal behaviour. Of all the ethnic groups, Indian/others displays the highest likelihood of adopting suicidal behaviour. There is a positive relationship between poor health condition and suicide. Policies targeted at individuals who are likely to adopt suicidal behaviour may be effective in lowering the prevalence of suicide. PMID- 29331850 TI - Attentional biases in patients suffering from unipolar depression: results of a dot probe task investigation. AB - Cognitive models of depression emphasize the relevance of cognitive biases for development, onset and maintenance of major depressive disorder (MDD). Attentional biases consisting of increased attention to negative, mood congruent stimuli and reduced attention to positive, mood-incongruent stimuli are postulated but have rarely been tested for early attentional processing. Furthermore, the role of concurrent depressive mood as a moderating factor has not been studied to date. Participants comprised 30 patients suffering from MDD and 30 healthy control subjects. All participants performed a dot-probe task with pictorial stimuli displaying affective facial expressions, presented either for 100ms or for 500ms. Attentional biases towards faces displaying joy in both MDD patients and control subjects and towards faces displaying pain in MDD subjects were found at presentation times of 100ms. In the MDD sample, the bias indices at 100ms were correlated with concurrent depressive mood. In patients with pronounced depressive mood, significant biases towards happy and angry faces were observed that exceed the biases obtained in control subjects and patients with less depressive mood. The results provide first evidence that MDD patients with pronounced depressive mood show an increased early attentional engagement towards emotional salient stimuli, independent from valence. PMID- 29331851 TI - Rhizospheric microorganisms as a solution for the recovery of soils contaminated by petroleum: A review. AB - Petroleum is currently the world's main energy source, and its demand is expected to increase in coming years. Its intense exploitation can lead to an increase in the number of environmental accidents, such as spills and leaks, and an increase in the generation of environmental liabilities resulting from refining. Due to its hydrophobic characteristics and slow process of biodegradation, petroleum can remain in the environment for a long time and its toxicity can cause a negative impact on both terrestrial and aquatic ecosystems, with the main negative effects related to its carcinogenic potential for both animals and humans. The objective of the present review is to discuss environmental contamination by oil, conventional treatment techniques and bioremediation an alternative tool for recovery petroleum-contaminated soils, focusing on the rhizodegradation process, plant growth-promoting rhizobacteria (PGPR), a phytoremediation strategy in which the microorganisms that colonize the roots of phytoremediatior plants are responsible for the biodegradation of petroleum. These microorganisms can be selected and tested individually or in the form of consortia to evaluate their potential for oil degradation, or even to measure the use of biosurfactants produced by them to constitute tools for the development of environmental recovery strategies and biotechnological application. PMID- 29331852 TI - No time to waste organic waste: Nanosizing converts remains of food processing into refined materials. AB - Modern food processing results in considerable amounts of side-products, such as grape seeds, walnut shells, spent coffee grounds, and harvested tomato plants. These materials are still rich in valuable and biologically active substances and therefore of interest from the perspective of waste management and "up-cycling". In contrast to traditional, often time consuming and low-value uses, such as vermicomposting and anaerobic digestion, the complete conversion into nanosuspensions unlocks considerable potentials of and new applications for such already spent organic materials without the need of extraction and without producing any additional waste. In this study, nanosuspensions were produced using a sequence of milling and homogenization methods, including High Speed Stirring (HSS) and High Pressure Homogenization (HPH) which reduced the size of the particles to 200-400 nm. The resulting nanosuspensions demonstrated nematicidal and antimicrobial activity and their antioxidant activities exceeded the ones of the bulk materials. In the future, this simple nanosizing approach may fulfil several important objectives, such as reducing and turning readily available waste into new value and eventually closing a crucial cycle of agricultural products returning to their fields - with a resounding ecological impact in the fields of medicine, agriculture, cosmetics and fermentation. Moreover, up-cycling via nanosizing adds an economical promise of increased value to residue-free waste management. PMID- 29331853 TI - Mobility of heavy metals in sandy soil after application of composts produced from maize straw, sewage sludge and biochar. AB - Studies on the availability of heavy metals in composted organic materials and in soil amended with these materials are of practical significance. They are used in the assessment of the purity of the soil environment and of the biological value of plants intended for human and animal consumption. Composting of organic materials has a significant effect on changes in mobile forms of heavy metals. Therefore, the aim of this study was to determine the effect of the addition of biochar and sewage sludge on (i) the contents of water soluble forms of Cu, Cd, Pb, and Zn in composts; and (ii) the contents of mobile forms of these elements in sandy soil after the addition of composts. Addition of sewage sludge and biochar to maize straw did not increase the heavy metal forms extracted with water in total content of heavy metals. The content of Cd and Cu extracted with water in composts produced from maize straw and sewage sludge, and produced from maize straw, sewage sludge and biochar was higher than the one determined in compost produced from maize straw. The content of Pb and Zn extracted with water in compost produced from maize straw, sewage sludge and biochar was lower than in compost produced from maize straw. The addition of sewage sludge and biochar to maize straw had an immobilizing effect on mobile forms of the studied elements compared to compost produced from maize straw and sewage sludge. The addition of composts to soil decreased the contents of mobile forms of Cu, Cd, and Pb extracted with 1 M NH4NO3 compared to the contents in the control soil. However, the content of Zn extracted with NH4NO3 increased in treatments with 0.5% dose of compost produced from maize straw and sewage sludge and 0.5% dose of compost produced from maize straw, sewage sludge and biochar. In none of the analyzed cases, the application of the composts produced did not exceed the acceptable content of studied elements in the soil. PMID- 29331854 TI - Trade-offs between forest carbon stocks and harvests in a steady state - A multi criteria analysis. AB - This paper provides a perspective for comparing trade-offs between harvested wood flows and forest carbon stocks with different forest management regimes. A constant management regime applied to a forest area with an even age-class distribution leads to a steady state, in which the annual harvest and carbon stocks remain constant over time. As both are desirable - carbon stocks for mitigating climate change and harvests for the economic use of wood and displacing fossil fuels - an ideal strategy should be chosen from a set of management regimes that are Pareto-optimal in the sense of multi-criteria decision-making. When choosing between Pareto-optimal alternatives, the trade-off between carbon stock and harvests is unavoidable. This trade-off can be described e.g. in terms of carbon payback times or carbon returns. As numerical examples, we present steady-state harvest levels and carbon stocks in a Finnish boreal forest region for different rotation periods, thinning intensities and collection patterns for harvest residues. In the set of simulated management practices, harvest residue collection presents the most favorable trade-off with payback times around 30-40 years; while Pareto-optimal changes in rotation or thinnings exhibited payback times over 100 years, or alternatively carbon returns below 1%. By extending the rotation period and using less-intensive thinnings compared to current practices, the steady-state carbon stocks could be increased by half while maintaining current harvest levels. Additional cases with longer rotation periods should be also considered, but were here excluded due to the lack of reliable data on older forest stands. PMID- 29331855 TI - Retrievable Inferior vena cava filters in pregnancy: Risk versus benefit? AB - OBJECTIVE: Venous thromboembolism remains one of the leading causes of maternal mortality in the developed world. Retrievable inferior vena cava (IVC) filters have a role in the prevention of lethal pulmonary emboli when anticoagulation is contraindicated or has failed [1]. It is unclear whether or not the physiological changes in pregnancy influence efficacy and complications of these devices. The decision to place an IVC filter in pregnancy is complex and there is limited information in terms of benefit and risk to the mother. The objective of this study was to determine the efficacy and safety of these devices in pregnancy and to compare these with rates reported in the general population. STUDY DESIGN: The aim of this study was report three recent cases of retrievable IVC filter use in pregnant women in our department and to perform a systematic review of the literature to identify published cases of filters in pregnancy. The efficacy and complication rates of these devices in pregnancy were estimated and compared to rates reported in the general population in a recent review [2]. Fisher's exact test was used for statistical analysis. RESULTS: In addition to our three cases, 16 publications were identified with retrievable IVC filter use in 40 pregnant women resulting in a total of 43 cases. There was no pulmonary embolus in the pregnant group (0/43) compared to 57/6291 (0.9%) in the general population. Thrombosis of the filter (2.3% vs. 0.9%, p = 0.33) and perforation of the IVC (7.0% vs 4.4%, p = 0.44) were more common in pregnancy compared to the general population but the difference was not statistically significant. Failure to retrieve the filter is more likely to occur in pregnancy (26% vs. 11%, p = 0.006) but this did not correlate with the type of device (p = 0.61), duration of insertion (p = 0.58) or mode of delivery (p = 0.37). CONCLUSION: Data for retrievable IVC filters in pregnancy is limited and there may be a publication bias towards complicated cases. This study shows that the filter appears to protect against PE in pregnancy but the numbers are small. Complications such as filter thrombosis and IVC penetration appear to be higher in pregnancy but this difference is not statistically significant. It is not possible to retrieve the device in one out of every four pregnant women. This has implications in terms of long term risk of lower limb thrombosis and post thrombotic syndrome. The decision to use an IVC filter in pregnancy needs careful consideration by a multidisciplinary team. The benefit and risk assessment should be individualised and clearly outlined to the patient. PMID- 29331856 TI - Schizandrin A enhances chemosensitivity of colon carcinoma cells to 5 fluorouracil through up-regulation of miR-195. AB - Nowadays 5-fluorouracil (5-FU)-based adjuvant chemotherapy is widely used for treating colon carcinoma. However, 5-FU resistance in the treatment of colon carcinoma has become more common and thereby new therapeutic strategies and new adjuvant drugs still need to be explored. Two 5-FU-resistant colon cancer cell lines, HCT116 and SW480, were used to investigate the effects of Schizandrin A (SchA), 5-FU, or their combination on cell viability and apoptosis. Besides, the role of miR-195 was studied to further clarify the specific function of SchA. CCK 8 assay and flow cytometry analysis were conducted to determine cell viability and apoptosis, respectively. miR-195 expression was determined by quantitative real-time PCR. Cell apoptosis-related proteins and factors of PI3K/AKT and NF kappaB pathways were analyzed by Western blot. Cell viability assay showed that SchA treatment at non-toxic dosages caused a marked enhancement of 5-FU-induced cytotoxicity. Moreover, we explored that miR-195 was up-regulated by SchA; and overexpression of miR-195 reduced cell viability and sensitized 5-FU-resistant HCT116 and SW480 cells to 5-FU. The promoting effect of SchA on 5-FU susceptibility can be partly abolished by miR-195 knockdown. Thus it was speculated that SchA might enhance cell chemosensitivity to 5-FU by up-regulating miR-195. Finally, we found that PI3K/AKT and NF-kappaB pathways were inhibited by high expression of miR-195 reduced by SchA. Our results suggested that SchA sensitized 5-FU-resistant colon carcinoma cells to 5-FU by up-regulating miR-195. SchA combined with 5-FU could be a promising strategy for the adjuvant chemotherapy of colon cancer. PMID- 29331857 TI - Baicalin alleviates IL-1beta-induced inflammatory injury via down-regulating miR 126 in chondrocytes. AB - Baicalin is a flavonoid extracted from Scutellaria baicalensis Georgi, with anti inflammatory and anti-apoptotic activities. The objective of this study was to explore the effect and mechanism of baicalin on chondrocyte inflammatory response in OA. Different concentrations of IL-1beta (0, 0.1, 2, 5 and 10 ng/mL) were used to simulate inflammatory injury in CHON-001 cells. The expression of miR-126 was altered by transfection with miR-126 mimic. Thereafter, cells were treated with baicalin, and cell viability, apoptosis, the expressions of apoptosis-related protein and pro-inflammatory factors were respectively detected using CCK-8 assay, flow cytometry, qRT-PCR and western blot analysis. We found that IL-1beta induced a significantly inflammatory injury in CHON-001 cells. Baicalin alleviated IL-1beta-induced inflammatory injury, as it increased cell viability, decreased cell apoptosis and repressed the production of IL-6, IL-8 and TNF alpha. miR-126 was up-regulated by IL-1beta treatment while was down-regulated by baicalin. More interestingly, the protective actions of baicalin on IL-1beta injured CHON-001 cells were partially eliminated by miR-126 overexpression. Further, NF-kappaB signaling pathway was activated by IL-1beta, and deactivated by addition of baicalin. The deactivation of NF-kappaB signaling pathway induced by baicalin upon IL-1beta exposure was recovered by miR-126 overexpression. In conclusion, this study demonstrated that baicalin protected CHON-001 cells against IL-1beta-induced inflammatory injury possibly via down-regulation of miR 126 and thereby deactivation of NF-kappaB signaling pathway. PMID- 29331858 TI - Down-regulation of long non-coding RNA AFAP1-AS1 inhibits tumor growth, promotes apoptosis and decreases metastasis in thyroid cancer. AB - Long non-coding RNAs (lncRNAs), a new type of transcripts, play important roles in various cellular biological processes, involving tumorigenesis. Previous studies showed that lncRNA AFAP1-AS1 was aberrantly expressed in numerous cancers. Nevertheless, we know quite a little about the expression pattern and biological function of AFAP1-AS1 in thyroid cancer. In this study, we adopted the quantitative real-time PCR (qRT-PCR) to detect the expression of AFAP1-AS1 in thyroid cancer tissues. We discovered that expression of AFAP1-AS1 was increased in thyroid cancer tissues. MTT assays elucidated that down-regulation of AFAP1 AS1 could suppress growth of thyroid cancer cells. And the results of flow cytometry analysis indicated knockdown of AFAP1-AS1 induced apoptosis in thyroid cancer. Transwell assay was applied to show decreased cell migration in thyroid cancer as a result of down-regulation of AFAP1-AS1. Hence, our study provided evidence for our hypothesis that AFAP1-AS1 could be a therapeutic target for thyroid cancer. PMID- 29331859 TI - Development of a method to determine axitinib, lapatinib and afatinib in plasma by micellar liquid chromatography and validation by the European Medicines Agency guidelines. AB - A method based on micellar liquid chromatography to quantify the tyrosine kinase inhibitors axitinib, lapatinib and afatinib in plasma is reported. The sample pretreatment was a simple 1/5-dilution in a pure micellar solution, filtration and direct injection, without requiring extraction or purification steps. The three drugs were resolved from the matrix in 17min, using an aqueous solution of 0.07M sodium dodecyl sulfate - 6.0% 1-pentanol, buffered at pH7 with 0.01M phosphate salt as mobile phase, running under isocratic mode at 1mL/min through a C18 column. The detection was performed by absorbance at 260nm. An accurate mathematical relationship was established between the retention factor of each drug and the surfactant/organic solvent concentration in the mobile phase, achieved with a limited number of experiments, in order to optimize these factors. A binding behavior of the analytes face to the micelles was found out. The method was successfully validated by the guidelines of the European Medicines Agency in terms of: selectivity, linearity (r2>0.9995), calibration range (0.5 to 10mg/L), limit of detection (0.2mg/L), carry-over effect, accuracy (-8.1 to +6.9%), precision (<13.8%), dilution integrity, matrix effect, stability and robustness. The procedure was found reliable, practical, economic, accessible, short-time, easy-to-handle, inexpensive, environmental-friendly, safe, useful for the analysis of many samples per day. Finally, the method was applied to the analysis of incurred, using quality control samples in the same analytical run, with adequate results. Therefore, it can be implementable for routine analysis in clinical laboratories. PMID- 29331860 TI - C18 core-shell column with in-series absorbance and fluorescence detection for simultaneous monitoring of changes in stilbenoid and proanthocyanidin concentrations during grape cane storage. AB - Grape canes, the residues from the annual pruning of vines, contain high levels of inducible (E)-resveratrol and also oligomeric stilbenoids and proanthocyanidins. These two families of phenolic compounds are bioactive, but to quantify them in a single chromatographic run using only ultraviolet detection is a difficult task. To overcome this limitation, a chromatographic method was developed using a core shell column for separation, an ultraviolet-visible diode array detector (DAD) and a fluorescence (FL) detector connected in series for quantification, with an electrospray ionization interface (ESI) and a triple quadrupole mass spectrometric detector (MS/MS) added for identification of the analytes. The proanthocyanidins (+)-catechin, (-)-epicatechin, procyanidins B1, B2, and C1, an unknown dimer and trimer, two prodelphinidin dimers, and monogallate procyanidin dimers were detected in the tested grape cane samples. The stilbenoids detected were (E)-resveratrol, (E)-piceatannol, (E)-piceid, (E) epsilon-viniferin, vitisin B, a glycosylated monomer, three oxidized dimers, an unknown dimer and a tetramer, pallidol, hopeaphenol, (E)-delta-viniferin, and (E) omega-viniferin. However, this method required 60min for each analysis. A faster and more efficient method for quantitative analysis was developed based on HPLC DAD-FL, reducing the time required to 24min for the simultaneous quantification of proanthocyanidins and stilbenoids in Cabernet Sauvignon, Pinot Noir, and Tintorera grape canes stored at controlled temperatures and relativity humidities for 134days after pruning. To the best of our knowledge, this is the first time a prodelphinidin dimer has been quantified in grape canes. The incorporation of fluorescence detection in series with DAD not only allowed the quantification of proanthocyanidins, it also improved the detectability of some minor stilbenoids present in the canes, such as (E)-piceid. The (E)-resveratrol and (E)-piceatannol levels increased significantly during cane storage, while those of (E)-epsilon viniferin and ampelopsin A did not show significant increases. The relative humidity had a determining effect on the levels of (E)-resveratrol and (E) piceatannol in the canes of all varieties studied; their concentrations were higher at a relative humidity of 60% than at 70%. This is the first time that the proanthocyanidin profiles of canes stored after pruning were monitored under controlled conditions of temperature, time and relative humidity. The concentration of (-)-epicatechin decreased during storage under both relative humidities. Furthermore, the levels of proanthocyanidin B1 and the prodelphinidin dimer also decreased to a certain extent. PMID- 29331861 TI - Synthesis of colloidal silver nanoparticle clusters and their application in ascorbic acid detection by SERS. AB - Ascorbic acid (vitamin C) has an essential role in the human body mainly due to its antioxidant function. In this work, metallic silver nanoparticle (AgNP) colloids were used in SERS experiments to detect ascorbic acid in aqueous solution. The AgNPs were synthesized by a green method using potato starch as reducing and stabilizing agent, and water as the solvent. The optical properties of the yellowish as-synthesized silver colloids were characterized by UV-vis spectroscopy, in which besides a typical band at 410 nm related to the localized surface plasmon resonance of the silver nanoparticles, a shoulder band around 500 nm, due to silver nanoparticle cluster formation, is presented when relatively higher concentrations of starch are used in the synthesis. These starch-capped silver nanoparticles show an intrinsic Raman peak at 1386 cm-1 assigned to deformation modes of the starch structure. The increase of the intensity of the SERS peak at 1386 cm-1 with an increase in the concentration of the ascorbic acid is related to a decrease of the gap between dimers and trimers of the silver nanoparticle clusters produced by the presence of ascorbic acid in the colloid. The limit of detection of this technique for ascorbic acid is 0.02 mM with a measurement concentration range of 0.02-10 mM, which is relevant for the application of this method for detecting ascorbic acid in biological specimen. PMID- 29331862 TI - Preliminary investigation of the use of Raman spectroscopy to predict meat and eating quality traits of beef loins. AB - A preliminary investigation was conducted to determine the potential for a handheld Raman spectroscopic device to predict sensory traits determined by an untrained consumer panel. Measurement of 45 beef loins (M. longissimus lumborum) was conducted using a 671nm handheld Raman spectroscopic device. Samples were then held frozen until testing by an untrained sensory panel. Sections were also excised to determine shear force values and other indicators of meat quality. Derived models suggest that the Raman spectroscopic device can predict juiciness and tenderness, with correlations between predicted and observed values (rho) of 0.42 and 0.47, respectively. Spectra indicated that these predictions were characterised by the fatty acid concentration, the hydrophobicity of proteins and the orientation of collagen. However, future research is required to determine the repeatability and robustness of these models on a larger independent data set. PMID- 29331863 TI - Airborne volatile aromatic hydrocarbons at an urban monitoring station in Korea from 2013 to 2015. AB - The concentrations of C6-C10 volatile aromatic hydrocarbons (AHCs) in air were measured at an urban air quality monitoring station in Jong-Ro, Seoul, Korea, between 2013 and 2015. Their temporal patterns (e.g., diurnal, intraweek, daily) were assessed individually and collectively as groups of benzene, toluene, ethylbenzene, styrene, and xylene (BTESX); total aliphatic hydrocarbon (TALHC: C2 C12); total aromatic hydrocarbon (TARHC: C6-C10); and total hydrocarbon (THC: C2 C12). The highest mean AHC concentrations over the 3-year study (in ppb (v/v)) were observed for toluene (6.0 +/- 4.3), followed by the xylenes (1.5 +/- 1.3), ethylbenzene (0.85 +/- 0.93), benzene (0.73 +/- 0.77), and styrene (0.16 +/- 0.30) nL/L. The mean ppbC ((v/v), nL?atm?C/nL?atm) values for BTESX, TALHC, TARHC, and THC were 65.8, 113, 77.7, and 191 ppbC, respectively. For most AHC species (e.g., toluene, styrene, and BTESX), only weak seasonal trends were observed in contrast to temporally varying species like nitric oxide (NO) (e.g., 26.3 ppb (January-February) vs. 8.5 ppb (July-August) during weekdays in 2013). Furthermore, toluene and NO concentrations were much higher (up to a factor 3) on weekdays than on Sunday for most weeks. This might reflect reduced anthropogenic activities on Sunday. PMID- 29331864 TI - Taxonomic studies on Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Muller, 1786) Jankowski, 1967 (Ciliophora, Cyrtophoria) with phylogenetic analyses. AB - The morphology, including the ciliary pattern, of two cyrtophorid ciliates, namely Aegyria apoliva sp. nov. and Trithigmostoma cucullulus (Muller, 1786) Jankowski, 1967, were investigated. They were isolated from coastal water off Qingdao and from an estuarine habitat in south China, respectively. Aegyria apoliva sp. nov. is characterized as following: body size 100-120 * 50-70 MUm in vivo with dark pigment spot on anterior left part of cell; 48-69 somatic kineties; one preoral and four or five circumoral kineties; 9-13 transpodial segments; 26-40 nematodesmal rods; 6-10 contractile vacuoles. The Guangzhou population of Trithigmostoma cucullulus corresponds well with previously described populations, therefore only a brief morphological description is presented. Phylogenetic analysis based on small-subunit rRNA gene sequences data supports the establishment of the new species as well as the monophyly of both genera. PMID- 29331865 TI - Structure-based assessment of protein-protein interactions and accessibility of protein IX in adenoviruses with implications for antigen display. AB - The exterior minor protein IX of adenoviruses (AdVs) is a frequent target of attachment of antigens and the modified AdVs are being used as potent vaccine platforms. The organization of protein IX is disticntly different between human adenoviruses (HAdVs) and non-HAdVs. The analysis of solvent accessibility, based on the near atomic resolution structures, suggests that the C-terminal residues of IX are more accessible in non-HAdVs (e.g., bovine adenovirus) than in HAdVs. Although the C-terminal fusions of IX are displayed on the capsid surface, they could disrupt the formation of tetrameric coiled-coils (4-HLXB) in HAdVs due to steric hinderance, thereby potentially affecting the capsid stability. Importantly, the parallel-antiparallel arrangement of helices seen in the 4-HLXB is not condusive for IX C-terminal fusions in HAdVs. In contrast, the parallel trimeric C-terminal coiled-coils in non-HAdVs are unlikely to be affected by the attachment of antigens and more efficiently displayed on the AdV surface. PMID- 29331868 TI - Zinc supplementation alleviates the progression of diabetic nephropathy by inhibiting the overexpression of oxidative-stress-mediated molecular markers in streptozotocin-induced experimental rats. AB - Zinc deficiency during diabetes projects a role for zinc nutrition in the management of diabetic nephropathy. The current study explored whether zinc supplementation protects against diabetic nephropathy through modulation of kidney oxidative stress and stress-induced expression related to the inflammatory process in streptozotocin-induced diabetic rats. Groups of hyperglycemic rats were exposed to dietary interventions for 6 weeks with zinc supplementation (5 times and 10 times the normal level). Supplemental-zinc-fed diabetic groups showed a significant reversal of increased kidney weight and creatinine clearance. There was a significant reduction in hyperlipidemic condition along with improved PUFA:SFA ratio in the renal tissue. Expression of the lipid oxidative marker and expression of inflammatory markers, cytokines, fibrosis factors and apoptotic regulatory proteins observed in diabetic kidney were beneficially modulated by zinc supplementation, the ameliorative effect being concomitant with elevated antiapoptosis. There was a significant reduction in advanced glycation, expression of the receptor of the glycated products and oxidative stress markers. Zinc supplementation countered the higher activity and expression of polyol pathway enzymes in the kidney. Overexpression of the glucose transporters, as an adaptation to the increased need for glucose transport in diabetic condition, was minimized by zinc treatment. The pathological abnormalities in the renal architecture of diabetic animals were corrected by zinc intervention. Thus, dietary zinc supplementation has a significant beneficial effect in the control of diabetic nephropathy. This was exerted through a protective influence on oxidative-stress-induced cytokines, inflammatory proliferation and consequent renal injury. PMID- 29331866 TI - Development of a novel equine influenza virus live-attenuated vaccine. AB - H3N8 equine influenza virus (EIV) is an important and significant respiratory pathogen of horses. EIV is enzootic in Europe and North America, mainly due to the suboptimal efficacy of current vaccines. We describe, for the first time, the generation of a temperature sensitive (ts) H3N8 EIV live-attenuated influenza vaccine (LAIV) using reverse-genetics approaches. Our EIV LAIV was attenuated (att) in vivo and able to induce, upon a single intranasal administration, protection against H3N8 EIV wild-type (WT) challenge in both a mouse model and the natural host, the horse. Notably, since our EIV LAIV was generated using reverse genetics, the vaccine can be easily updated against drifting or emerging strains of EIV using the safety backbone of our EIV LAIV as master donor virus (MDV). These results demonstrate the feasibility of implementing a novel EIV LAIV approach for the prevention and control of currently circulating H3N8 EIVs in horse populations. PMID- 29331869 TI - Dietary naringenin supplementation attenuates experimental autoimmune encephalomyelitis by modulating autoimmune inflammatory responses in mice. AB - Autoimmune disease is highly prevalent in humans. Since conventional therapies have limited efficacy and often come with significant side effects, nutrition may provide an alternative and complementary approach to improving autoimmune disorders. Naringenin, a flavonoid found in citrus fruits, has been shown to have anti-inflammatory and antioxidant properties. Using the experimental autoimmune encephalomyelitis (EAE), a rodent model of human multiple sclerosis, we determined the effect of dietary naringenin (0.5%) on autoimmune disease. We found that naringenin reduced the incidence, delayed the onset, and attenuated the symptoms of EAE, which were accompanied by reduced immune cell infiltration and demyelination in the spinal cord. Additionally, the pro-inflammatory CD4+ T cell subsets Th1, Th9, and Th17 cells together with their respective transcription factors T-bet, PU.1, and RORgammat were reduced in both the central nervous system (CNS) and lymph nodes of EAE mice fed naringenin while no difference was found in Th2 and regulatory T cell (Treg) populations in either CNS or lymph nodes between the two groups. We further showed that pathologic T cell proliferation induced by ex vivo re-stimulation with MOG35-55 and proinflammatory cytokines IL-6 and TNF-alpha were lower in naringenin-fed mice than in the control mice. Additionally, we found that naringenin treatment inhibited mRNA expression of CXCL10 (Th1 recruiting chemokine), vascular cell adhesion molecule-1 (VCAM-1), and VLA-4 (VCAM-1 ligand) in the CNS of EAE mice. Altogether, these results indicate that naringenin may have a potential to ameliorate autoimmune disease by favorably modulating autoimmune response. PMID- 29331867 TI - Classification and evolution of human papillomavirus genome variants: Alpha-5 (HPV26, 51, 69, 82), Alpha-6 (HPV30, 53, 56, 66), Alpha-11 (HPV34, 73), Alpha-13 (HPV54) and Alpha-3 (HPV61). AB - HPV variants from the same type can be classified into lineages and sublineages based on the complete genome differences and the phylogenetic topologies. We examined nucleotide variations of twelve HPV types within the species Alpha-5 (HPV26, 51, 69, 82), Alpha-6 (HPV30, 53, 56, 66), Alpha-11 (HPV34, 73), Alpha-13 (HPV54) and Alpha-3 (HPV61) by analyzing 1432 partial sequences and 181 complete genomes from multiple geographic populations. The inter-lineage and inter sublineage mean differences of HPV variants ranged between 0.9-7.3% and 0.3-0.9%, respectively. The heterogeneity and phylogenies of HPV isolates indicate an independent evolutionary history for each type. The noncoding regions were the most variable regions whereas the capsid proteins were relatively conserved. Certain variant lineages and/or sublineages were geographically-associated. These data provide the basis to further classify HPV variants and should foster future studies on the evolution of HPV genomes and the associations of HPV variants with cancer risk. PMID- 29331870 TI - Postural instability differences between idiopathic normal pressure hydrocephalus and Parkinson's disease. AB - OBJECTIVES: We investigated the differences in postural control disability between idiopathic normal pressure hydrocephalus (iNPH) and Parkinson's disease (PD). PATIENTS AND METHODS: Twenty-seven iNPH patients, 20 PD patients, and 20 healthy controls (HCs) were examined using the Timed Up and Go test (TUG) and a force platform for recording the center of pressure (COP) trajectory during quiescent standing and voluntary multidirectional leaning (forward, backward, right, and left for 10 s each). RESULTS: In the leaning task, postural control in PD patients was impaired during forward and backward leaning, whereas postural control in iNPH patients was impaired in all directions. In particular, postural control during right and left leaning was significantly worse in iNPH patients than in PD patients. No significant difference was observed between iNPH and PD patients in TUG and postural sway during quiescent standing. CONCLUSION: Our results showed that the characteristics of impaired voluntary COP control in iNPH and PD patients might reflect pathophysiological differences in postural instability for each disease. In particular, postural instability during right and left leaning in iNPH patients may be responsible for wider steps and a higher risk of falling. PMID- 29331871 TI - Rupture during coiling of intracranial aneurysms: Predictors and clinical outcome. AB - INTRODUCTION: The intraprocedural aneurysm rupture (IPR) is one of the most feared adverse effect associated with the coil embolization therapy. The aim of the study was to identify predisposing factors for IPR, as well as to define patient groups with worse clinical outcome following IPR. PATIENTS AND METHODS: From February 2008 to March 2015, 273 consecutive patients were treated at our institution via endovascular coil embolization. Patient medical records were reviewed with emphasis on procedure description, potential risk factors and clinical outcomes related to IPR. The IPR occurred in 14 (5.13%) cases. Multivariate logistic regression models were used to determine independent predictors of IPR. Clinical outcome was analyzed using the Glasgow Outcome Scale (GOS). RESULTS: Multivariate analysis showed that aneurysm location at posterior communicating artery is an independent risk factor for IPR (p = 0.035; OR 3.5; 95%CI 1.09-11.26). The frequencies of favorable disability (GOS 4-5), severe disability (GOS 2-3), and mortality (GOS 1) between patients with IPR and without IPR were significantly different in the general study population (p < 0.001, p < 0.001 and p = 0.023, respectively) and in patients with previously unruptured aneurysms (p < 0.001, p = 0.006 and p = 0.003, respectively) but not in patients with previously ruptured aneurysms (p = 0.187, p = 0.089 and p = 1.0, respectively). CONCLUSION: Posterior communicating artery aneurysm location is an independent predictor for IPR. IPR is associated with a significant clinical deterioration in a subgroup of patients with previously unruptured aneurysms, but not in patients with ruptured aneurysms. PMID- 29331873 TI - Epilepsy and ovarian failure: Two cases of adolescent-onset ovarioleukodystrophy. AB - Vanishing white matter disease (VWM) was described by Van der Knaap in 1996. This association with premature ovarian failure is known as ovarioleukodystrophy. This is a rare entity caused by a mutation in one of the subunits of eukaryotic initiation factor 2B (EIF2B). The onset in adulthood or late in adolescence is very infrequent. A 41-years-old woman and her 37-years-old sister developed epilepsy in association with premature ovarian failure at the age of 13 and 18 respectively. The oldest-one started 17 years later progressive subcortical cognitive decline with predominant behavioural disorders and a progressive spastic paraparesis in association with symmetric cystic changes in the with matter of both hemispheres. In both patients we found the c.1117C>T (p.Arg373Cys) mutation in homozygosis in the EIF2B4 gen. PMID- 29331872 TI - Effect of physical activity on cognitive flexibility, depression and RBD in healthy elderly. AB - OBJECTIVE: The prevalence of Alzheimer's disease and Parkinson's disease increases with the raising number of elderly, which will be a challenging situation for the healthcare systems and society in the future. There is evidence that there are modifiable risk-factors e.g. physical activity for these diseases. Here, we study the interaction between sports inactivity with prodromal markers for neurodegeneration. PATIENTS AND METHODS: We investigated 667 neurologically healthy individuals cross-sectional and a subgroup longitudinal over six years. Participants were stratified by their weekly sports activity. Prodromal markers (depression and REM sleep behaviour disorder (RBD)) as well as single and dual tasking parameters and cognitive parameters were compared between the groups. RESULTS: At baseline, sports activity was associated with lower BDI scores, lower occurrence of depressive syndrome and RBD, compared to sports inactivity. Further, active participants were faster in cognitive tasks associated with working memory and attention (Trail Making test part-A; TMT-B, DeltaTMT-B-A) and better in gait and cognition parameters (single tasks and dual tasks) but not with overall cognition as measured with the MMSE. The association between physical inactivity and depression as well as TMT was present after six years. CONCLUSION: We found that sports activity has a positive effect on cognitive flexibility, depressive symptoms and sleep which are all signs for a possible ongoing neurodegenerative process. Therefore, our results strengthen the potential role of sports activity as a positive disease modifier. PMID- 29331874 TI - Thyroid hormone resuscitation after brain death in potential organ donors: A primer for neurocritical care providers and narrative review of the literature. AB - Solid organ transplantation has become a mainstay in the contemporary management of end-stage organ failures fueled by advances in immunosuppression, intensive care and surgical technology. Every year, a vast number of transplantable organs is lost on account of hemodynamic instability in potential brain-dead organ donors. Because of a growing organ shortage, measures that increase total donor supply pools are desperately needed. Thyroid hormone has been identified as an adjunctive therapy in donor management due to its potential for increasing organ supply and is currently endorsed by transplant organizations such as United Network for Organ Sharing (UNOS). Much of the evidence in support of thyroid hormone comes from level III studies showing greater donor survival and procurement rates. However, all prospective randomized studies to date have failed to corroborate any such benefit. Here, we describe the role of thyroid hormone in transplantation medicine and summarize data on its putative contributions to circulatory stability, organ yield and long-term graft function. At present, level I studies do not exist and many level II studies, which do not endorse its use, are of poor quality. Further research, particularly large-scale multi-center trials are therefore warranted to shed light on this matter. PMID- 29331875 TI - The association between vitamin D receptor polymorphisms and multiple sclerosis in a Turkish population. AB - BACKGROUND: Multiple sclerosis (MS) is a chronic, demyelinating disease of the central nervous system (CNS). Genetic and environmental factors are important in disease development. Many studies have investigated the relationship between MS and VDR polymorphisms. VDR gene polymorphism has not been previously studied in Turkish MS patients. We aimed to investigate the relationship between MS and VDR genotypes Taq I, Apa I and Fok I polymorphisms in a Turkish population. METHODS: 167 MS patients and 146 healthy control subjects were included in the present study. MS and the VDR TaqI (rs731236), ApaI (rs7975232), and FokI (rs2228570) polymorphisms were investigated. RESULTS: The study enrolled 167 patients (121 females, 46 males) with MS and 146 healthy individuals (88 females, 58 males). The frequency of only the Fok I polymorphism differed significantly between the two groups (p = 0.002). The TaqI (rs731236) and ApaI (rs7975232) genotype distributions were not significantly different between MS patients and healthy controls (p = 0.626 and p = 0.990, respectively). Also there were no significant gender difference between patients and controls for Taq I and Apa I. CONCLUSION: In conclusion, we found a significant association between MS and the FokI polymorphism in our region of Turkey. However, the results may be different in other populations. More epidemiological and genetic studies are needed to explain the association between genetic factors and MS. PMID- 29331876 TI - APP/Go protein Gbetagamma-complex signaling mediates Abeta degeneration and cognitive impairment in Alzheimer's disease models. AB - Deposition of amyloid-beta (Abeta), the proteolytic product of the amyloid precursor protein (APP), might cause neurodegeneration and cognitive decline in Alzheimer's disease (AD). However, the direct involvement of APP in the mechanism of Abeta-induced degeneration in AD remains on debate. Here, we analyzed the interaction of APP with heterotrimeric Go protein in primary hippocampal cultures and found that Abeta deposition dramatically enhanced APP-Go protein interaction in dystrophic neurites. APP overexpression rendered neurons vulnerable to Abeta toxicity by a mechanism that required Go-Gbetagamma complex signaling and p38 mitogen-activated protein kinase activation. Gallein, a selective pharmacological inhibitor of Gbetagamma complex, inhibited Abeta-induced dendritic and axonal dystrophy, abnormal tau phosphorylation, synaptic loss, and neuronal cell death in hippocampal neurons expressing endogenous protein levels. In the 3xTg-AD mice, intrahippocampal application of gallein reversed memory impairment associated with early Abeta pathology. Our data provide further evidence for the involvement of APP/Go protein in Abeta-induced degeneration and reveal that Gbetagamma complex is a signaling target potentially relevant for developing therapies for halting Abeta degeneration in AD. PMID- 29331878 TI - How shared reality is created in interpersonal communication. AB - Communication is a key arena and means for shared-reality creation. Most studies explicitly devoted to shared reality have focused on the opening part of a conversation, that is, a speaker's initial message to an audience. The aspect of communication examined by this research is the evaluative adaptation (tuning) of the messages to the audience's attitude or judgment. The speaker's shared-reality creation is typically assessed by the extent to which the speaker's evaluative representation of the topic matches the audience-tuned view expressed in the message. We first review research on such audience-tuning effects, with a focus on shared-reality goals and conditions facilitating the generalization of shared reality. We then review studies using other paradigms that illustrate factors of shared-reality creation in communication, including mere message production, grounding, validation responses, and communication about commonly known information (including stereotypes) in intragroup communication. The different lines of research reveal the potency, but also boundary conditions, of communication effects on shared reality. PMID- 29331877 TI - Cerebral changes and disrupted gray matter cortical networks in asymptomatic older adults at risk for Alzheimer's disease. AB - The diagnostic value of cerebrospinal fluid (CSF) biomarkers is well established in Alzheimer's disease, but our current knowledge about how abnormal CSF levels affect cerebral integrity, at local and network levels, is incomplete in asymptomatic older adults. Here, we have collected CSF samples and performed structural magnetic resonance imaging scans in cognitively normal elderly as part of a cross-sectional multicenter study (SIGNAL project). To identify group differences in cortical thickness, white matter volume, and properties of structural networks, participants were split into controls (N = 20), positive amyloid-beta (Abeta1-42+) (N = 19), and positive phosphorylated tau (N = 18). The Abeta1-42+ group exhibited thickening of middle temporal regions, while positive phosphorylated tau individuals showed thinning in the superior parietal and orbitofrontal cortices. Subjects with abnormal CSF biomarkers further showed regional white matter atrophy and more segregated cortical networks, the Abeta1 42+ group showing heightened isolation of cingulate and temporal cortices. Collectively, these findings highlight the relevance of combining structural brain imaging and connectomics for in vivo tracking of Alzheimer's disease lesions in asymptomatic stages. PMID- 29331879 TI - Structural and quantum mechanical computations to elucidate the altered binding mechanism of metal and drug with pyrazinamidase from Mycobacterium tuberculosis due to mutagenicity. AB - Pyrazinamide is known to be the most effective treatment against tuberculosis disease and is known to have bacteriostatic action. By targeting the bacterial spores, this drug reduces the chances for the progression of the infection in organisms. In recent years, increased instances of the drug resistance of bacterial strains are reported. Pyrazinamidase, activator for pyrazinamide, leads to resistance against the drug due to mutagenicity across the world. The present study aimed at the quantum mechanistic analysis of mutations in pyrazinamidase to gain insights into the mechanism of this enzyme. Quantum mechanical calculations were performed to analyse the effect of mutations at the metal coordination site using ORCA software program. Moreover, conformational changes in PZase binding cavity has also been analysed due to mutations of binding pocket residues using CASTp server. In order to elucidate the behaviour of the mutant pyrazinamidase, docking of PZA in the binding pocket of PZase was performed using AutoDock Vina. Analysis of results revealed that iron showed weak binding with the metal coordination site of the mutant proteins due to alteration in electron transfer mechanism. The binding cavity of the mutant PZase has undergone major conformational changes as the volume of pocket increased due to bulky R-chains of mutated amino acids. These conformational changes lead to weak binding of the drug at binding cavity of PZase and reduce the drug activation mechanism leading to increased drug resistance in the bacterial strains. PMID- 29331881 TI - Ameliorative role of genistein against age-dependent chronic arsenic toxicity in murine brains via the regulation of oxidative stress and inflammatory signaling cascades. AB - Brain is highly prone to oxidative damage due to its huge lipid content and extensive energy requirements. Exogenous insult in brain via oxidative injury can lead to severe pathophysiological conditions. Age-dependent deterioration of normal brain functions is also noteworthy. Genistein, a polyphenolic isoflavonoid, obtained from the soy plant, is well known to protect against several diseased conditions. Here, in this study chronic brain toxicity model was developed using oral administration of arsenic for 90 days in adult and aged murines. We observed that intraperitoneal administration of genistein improved the arsenic induced behavioral abnormalities in the rats. It was also evident from the histopathological studies that the extent of tissue damage due to arsenic exposure was more in aged rats compared to the adults. Evaluation of different stress markers, intracellular ROS level and mitochondrial membrane potential revealed the involvement of oxidative stress and mitochondrial dysfunction in inducing brain damage in arsenic exposed murines. It was observed that genistein can significantly ameliorate the stressed condition in both the animal groups but the protective effect of genistein was more significant in the adult animals. The underlying signalling mechanism behind the cytotoxicity of arsenic was investigated and revealed that genistein exhibited neuroprotection significantly by modulating the JNK3 mediated apoptosis, ERK1/2 mediated autophagy and TNFalpha associated inflammatory pathways. Overall study infers that genistein has significant ameliorative effect of against age-dependent cytotoxicity of arsenic in murine brains. PMID- 29331882 TI - Association analysis of SLC6A4 and HTR2A genes with obsessive-compulsive disorder: Influence of the STin2 polymorphism. AB - BACKGROUND: Obsessive-Compulsive Disorder (OCD) is a complex and chronic disorder characterized by recurrent thoughts and/or repetitive behaviors. Given the potent anti-obsessional effects of the so-called serotonin reuptake inhibitors, genes related to serotonergic system may be well implicated in the etiopathogenesis of OCD. The gene encoding the serotonin transporter (SLC6A4), which shows a variable number of tandem repeat (VNTR) polymorphism in intron 2 (STin2), have been previously associated with OCD. Additionally, the serotonin 2A receptor gene (HTR2A) has two polymorphisms (A-1438G - rs6311, and T102C - rs6313), which have also been overrepresented among OCD patients. Therefore, the aim of this study is to evaluate the association of these three polymorphisms with OCD, through the examination of potential sources of heterogeneity in previous studies including age of onset, sex and symptom dimensions. METHODS: Polymorphisms were genotyped by Polymerase Chain Reaction (PCR) in a sample of 203 OCD patients and 205 healthy controls from Brazil. RESULTS: Although we did not observe any statistically significant association between the HTR2A gene polymorphisms and OCD or its clinical features, SLC6A4 STin2 polymorphism was significantly more common among OCD patients as compared to health controls. Further, a significant association between the STin2.12 allele and OCD, as well as a dominant effect of the STin2.12 allele in OCD was seen. Of note, late-onset (>18years) OCD was significantly more often seen in association with homozygosis for STin2.12 allele. No significant associations were observed with different OCD symptom dimensions. CONCLUSION: Our results indicate an important influence of the STin2 polymorphism in OCD, but more studies are warranted to confirm these results. PMID- 29331880 TI - Preventive effects of indole-3-carbinol against alcohol-induced liver injury in mice via antioxidant, anti-inflammatory, and anti-apoptotic mechanisms: Role of gut-liver-adipose tissue axis. AB - Indole-3-carbinol (I3C), found in Brassica family vegetables, exhibits antioxidant, anti-inflammatory, and anti-cancerous properties. Here, we aimed to evaluate the preventive effects of I3C against ethanol (EtOH)-induced liver injury and study the protective mechanism(s) by using the well-established chronic-plus-binge alcohol exposure model. The preventive effects of I3C were evaluated by conducting various histological, biochemical, and real-time PCR analyses in mouse liver, adipose tissue, and colon, since functional alterations of adipose tissue and intestine can also participate in promoting EtOH-induced liver damage. Daily treatment with I3C alleviated EtOH-induced liver injury and hepatocyte apoptosis, but not steatosis, by attenuating elevated oxidative stress, as evidenced by the decreased levels of hepatic lipid peroxidation, hydrogen peroxide, CYP2E1, NADPH-oxidase, and protein acetylation with maintenance of mitochondrial complex I, II, and III protein levels and activities. I3C also restored the hepatic antioxidant capacity by preventing EtOH induced suppression of glutathione contents and mitochondrial aldehyde dehydrogenase-2 activity. I3C preventive effects were also achieved by attenuating the increased levels of hepatic proinflammatory cytokines, including IL1beta, and neutrophil infiltration. I3C also attenuated EtOH-induced gut leakiness with decreased serum endotoxin levels through preventing EtOH-induced oxidative stress, apoptosis of enterocytes, and alteration of tight junction protein claudin-1. Furthermore, I3C alleviated adipose tissue inflammation and decreased free fatty acid release. Collectively, I3C prevented EtOH-induced liver injury via attenuating the damaging effect of ethanol on the gut-liver-adipose tissue axis. Therefore, I3C may also have a high potential for translational research in treating or preventing other types of hepatic injury associated with oxidative stress and inflammation. PMID- 29331883 TI - Curative distal pancreatectomy in patients with acinar cell carcinoma of pancreas diagnosed by endoscopic aspiration via esophago-jejunostomy: A successful case report. AB - INTRODUCTION: This is a case report on the advances in preoperative endoscopic guided fine-needle-aspiration (FNA) diagnosis for pancreatic carcinoma to achieve a curative operation even in patients who have a history of total gastrectomy. CASE PRESENTATION: A 65-year-old man, who underwent total gastrectomy for gastric cancer 13 years ago, had discomfort in the left lateral abdomen. A 3-cm hypovascular mass accompanying a large distal pseudocyst in the pancreatic tail was observed on computed tomography. Endoscopic ultrasonography via elevation of the jejunal loop on esophago-jejunostomy also revealed similar lesions, and FNA for the proximal-side hypoechoic mass was successful. The cytological diagnosis with immunohistochemistry was acinar cell carcinoma of the pancreas. Distal pancreatectomy with splenectomy was successfully performed. Histology of the resected specimen also showed the acinar cell carcinoma, similar with preoperative cytology, which involved the splenic vein and had extra-pancreatic extension but no lymph node metastasis. The tumor stage was IIA by the 2009 UICC classification. He had no tumor relapse on imaging follow-up until 12 months after the operation. DISCUSSION: There have been marked technical advancements in endoscopic ultrasonography-guided diagnosis, including FNA, even in patients with prior digestive tract surgery. However, the risk of complication is still a concern. Accurate histological diagnosis is useful in the field of pancreatic surgery, especially in cases of rare or small malignant lesions. CONCLUSION: Curative pancreatectomy was possible in a case of acinar cell carcinoma, a rare pancreatic malignancy, which was diagnosed by preoperative endoscopic FNA diagnosis via esophago-jejunostomy after previous total gastrectomy. PMID- 29331884 TI - True left-sided gallbladder: A case report and comparison with the literature for the different techniques of laparoscopic cholecystectomy for such anomalies. AB - INTRODUCTION: True left-sided gallbladder (LSG) is a rare finding that may present with symptoms similar to those of a normally positioned gallbladder. Moreover, it may be missed by preoperative imaging studies such as ultrasound, computed tomography (CT), magnetic resonance imaging (MRI), or endoscopic ultrasound. True left-sided gallbladder is a surgical challenge and surgical technique may need to be modified for the completion of laparoscopic cholecystectomy. PRESENTATION OF CASE: In this case report, we present a case of true left-sided gallbladder that produced right-sided abdominal symptoms. Ultrasound of the abdomen failed to show the left-sided position of the gallbladder. MRI showed the gallbladder located to the left of the ligamentum teres underneath segment III of the liver. Intraoperatively, the gallbladder was grasped and retracted to the right under the falciform ligament and it was removed using classical right-sided ports with no modification to the technique. No complications were encountered intraoperatively or postoperatively. DISCUSSION: True LSG is a rare anomaly that may present with right-sided symptoms like normally positioned gallbladder. It may be missed in preoperative imaging studies and can be discovered only intraoperatively. Modification of laparoscopic ports, change in patient's position and/or surgeon's position, or conversion to open cholecystectomy may be needed for safe removal of the gallbladder. CONCLUSION: Classical technique of laparoscopic cholecystectomy is feasible for left-sided gallbladder. However, if the anatomy is not clear, modifications of the surgical technique may be necessary for the safe dissection of the gallbladder. PMID- 29331885 TI - Autonomously hyperfunctioning cystic nodule harbouring thyroid carcinoma - Case report and literature review. AB - INTRODUCTION: Hyperthyroidism is rarely associated with malignancy, but it cannot rule out thyroid cancer. Although there is published data describing this coexistence, thyroid carcinomas inside autonomously functioning nodules are uncommon. PRESENTATION OF CASE: A 49-year-old woman presented with a cervical mass, unexplained weight loss and anxiousness, sweating and insomnia. On physical examination, she had a palpable left thyroid nodule. Thyroid function tests showed suppressed TSH (<0,1 uUI/mL), thyroxine 1,44 ng/dL (normal range 0,70 1,48) and triiodothyronine 4,33 pg/mL (normal range 1,71-3,71). Ultrasound imaging revealed a left lobe, 4 cm partial cystic nodule. 99mTC thyroid scintigraphy showed a hyperfunctioning nodule with suppression of the remainder parenchyma. Fine-needle aspiration cytology was nondiagnostic (cystic fluid). The patient was started on thiamazole 5 mg daily with subsequent normalization of thyroid function, but she developed cervical foreign body sensation and a left hemithyroidectomy was performed. Histology showed a 4 cm cystic nodule with a follicular variant papillary carcinoma and the patient underwent completion thyroidectomy, followed by radio-iodine ablation. DISCUSSION: Published literature showed an increased prevalence of autonomously functioning nodules, harbouring thyroid carcinomas in adults. Papillary carcinoma is the most frequently described but the follicular variant is rare. CONCLUSION: Although rare, thyroid cancer is not definitively excluded in hyperthyroid patients and it should always be considered as differential diagnosis. PMID- 29331886 TI - Anti-cancer Effects of HNHA and Lenvatinib by the Suppression of EMT-Mediated Drug Resistance in Cancer Stem Cells. AB - Anaplastic thyroid cancer (ATC) constitutes less than 2% of total thyroid cancers but accounts for 20-40% of thyroid cancer-related deaths. Cancer stem cell drug resistance represents a primary factor hindering treatment. This study aimed to develop targeted agents against thyroid malignancy, focusing on individual and synergistic effects of HNHA (histone deacetylase), lenvatinib (FGFR), and sorafenib (tyrosine kinase) inhibitors. Patients with biochemically and histologically proven papillary thyroid cancer (PTC) and ATC were included. Cell samples were obtained from patients at the Thyroid Cancer Center, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea. PTC and ATC cells were treated with lenvatinib or sorafenib, alone or in combination with HNHA. Tumor-bearing mice (10/group) were administered 10 mg/kg lenvatinib (p.o.) or 40 mg/kg sorafenib (p.o.), alone or in combination with 25 mg/kg HNHA (i.p.) once every three days. Gene expression in patient-derived PTC and ATC cells was compared using a microarray approach. Cellular apoptosis and proliferation were examined by immunohistochemistry and MTT assays. Tumor volume and cell properties were examined in the mouse xenograft model. HNHA-lenvatinib combined treatment induced markers of cell cycle arrest and apoptosis and suppressed anti-apoptosis markers, epithelial-mesenchymal transition (EMT), and the FGFR signaling pathway. Combined treatment induced significant tumor shrinkage in the xenograft model. HNHA-lenvatinib combination treatment thus blocked the FGFR signaling pathway, which is important for EMT. Treatment with HNHA-lenvatinib combination was more effective than either agent alone or sorafenib-HNHA combination. These findings have implications for ATC treatment by preventing drug resistance in cancer stem cells. PMID- 29331888 TI - A Longitudinal Analysis of IDO and PDL1 Expression during Immune- or Targeted Therapy in Advanced Melanoma. AB - A deepened understanding of the cellular and molecular processes in the tumor microenvironment is necessary for the development of precision immunotherapy (IT). We simultaneously investigated CD3, PDL1, and IDO by immunohistochemistry in paired biopsies from various organs of 43 metastatic melanoma patients treated with IT and targeted therapy (TT). Intraindividual biopsies taken after a period of weeks to months demonstrate discordant results in 30% of the cases. Overlap of IDO and PDL1 increased after therapy. IT only marginally impacted PDL1 expression over time in contrast to TT. Standardized repeated assessments of multiple immune markers in repeated biopsies will generate detailed insights in melanoma's immune evolution and adaption during therapies and might be used to support treatment decisions. PMID- 29331889 TI - L-ascorbic acid metabolism in an ascorbate-rich kiwifruit (Actinidia. Eriantha Benth.) cv. 'White' during postharvest. AB - Kiwifruit (Actinidia eriantha Benth.) 'White', a novel cultivar with higher L ascorbic acid (AsA) level, is registered in China. Changes in AsA, related metabolites, enzymatic activity, and gene expression associated with AsA biosynthesis and recycling process were investigated in this paper. The results indicated that AsA biosynthesis through L-galactose pathway supplemented by D galacturonic acid pathway and AsA recycling collectively contributed to accumulating and remaining higher AsA level in kiwifruit cv. 'White' during postharvest. Moreover, L-galactose dehydrogenase (GalDH) activity and relative expressions of the genes encoding GDP-D-mannose pyrophosphorylase (GMP), L galactose-1-P phosphatase (GPP), GDP-L-galactose phosphorylase (GGP), GalDH and D galacturonate reductase (GalUR) were important for regulation of AsA biosynthesis, and the activity and expression of dehydroascorbate reductase (DHAR) were primarily responsible for regulation of AsA recycling in kiwifruit 'White' during postharvest. PMID- 29331887 TI - IDH1R132H Promotes Malignant Transformation of Benign Prostatic Epithelium by Dysregulating MicroRNAs: Involvement of IGF1R-AKT/STAT3 Signaling Pathway. AB - Risk stratification using molecular features could potentially help distinguish indolent from aggressive prostate cancer (PCa). Mutations in isocitrate dehydrogenase (IDH) acquire an abnormal enzymatic activity, resulting in the production of 2-hydroxyglutarate and alterations in cellular metabolism, histone modification, and DNA methylation. Mutant IDH1 has been identified in various human malignancies, and IDH1R132H constituted the vast majority of mutational events of IDH1. Most recent studies suggested that IDH1 mutations define a methylator subtype in PCa. However, the function of IDH1R132H in PCa development and progression is largely unknown. In this study, we showed that the prevalence of IDH1R132H in Chinese PCa patients is 0.6% (2/336). Of note, IDH1R132H-mutant PCa patients lacked other canonical genomic lesions (e.g., ERG rearrangement, PTEN deletion) that are common in most other PCa patients. The in vitro experiment suggested that IDH1R132H can promote proliferation of benign prostate epithelial cell RWPE-1 when under the situation of low cytokine. It could also promote migration capacity of RWPE-1 cells. Mechanistically, IDH1R132H was an important regulator of insulin-like growth factor 1receptor (IGF1R) by downregulating a set of microRNAs (miR-141-3p, miR-7-5p, miR-223-3p). These microRNAs were repressed by the alteration of epigenetic modification to decrease the enrichment of active marker H3K4me3 or to increase repressive marker H3K27me3 at their promoters. Collectively, we proposed a novel model for an IDH1R132H microRNAs-IGF1R regulatory axis, which might provide insight into the function of IDH1R132H in PCa development. PMID- 29331890 TI - Deep sequence analysis reveals the ovine rumen as a reservoir of antibiotic resistance genes. AB - Antibiotic resistance is an increasingly important environmental pollutant with direct consequences for human health. Identification of environmental sources of antibiotic resistance genes (ARGs) makes it possible to follow their evolution and prevent their entry into the clinical setting. ARGs have been found in environmental sources exogenous to the original source and previous studies have shown that these genes are capable of being transferred from livestock to humans. Due to the nature of farming and the slaughter of ruminants for food, humans interact with these animals in close proximity, and for this reason it is important to consider the risks to human health. In this study, we characterised the ARG populations in the ovine rumen, termed the resistome. This was done using the Comprehensive Antibiotic Resistance Database (CARD) to identify the presence of genes conferring resistance to antibiotics within the rumen. Genes were successfully mapped to those that confer resistance to a total of 30 different antibiotics. Daptomycin was identified as the most common antibiotic for which resistance is present, suggesting that ruminants may be a source of daptomycin ARGs. Colistin resistance, conferred by the gene pmrE, was also found to be present within all samples, with an average abundance of 800 counts. Due to the high abundance of some ARGs (against daptomycin) and the presence of rare ARGs (against colistin), we suggest further study and monitoring of the rumen resistome as a possible source of clinically relevant ARGs. PMID- 29331892 TI - Dynamic probabilistic material flow analysis of nano-SiO2, nano iron oxides, nano CeO2, nano-Al2O3, and quantum dots in seven European regions. AB - Static environmental exposure assessment models based on material flow analysis (MFA) have previously been used to estimate flows of engineered nanomaterials (ENMs) to the environment. However, such models do not account for changes in the system behavior over time. Dynamic MFA used in this study includes the time dependent development of the modelling system by considering accumulation of ENMs in stocks and the environment, and the dynamic release of ENMs from nano products. In addition, this study also included regional variations in population, waste management systems, and environmental compartments, which subsequently influence the environmental release and concentrations of ENMs. We have estimated the flows and release concentrations of nano-SiO2, nano-iron oxides, nano-CeO2, nano-Al2O3, and quantum dots in the EU and six geographical sub-regions in Europe (Central Europe, Northern Europe, Southern Europe, Eastern Europe, South-eastern Europe, and Switzerland). The model predicts that a large amount of ENMs are accumulated in stocks (not considering further transformation). For example, in the EU 2040 Mt of nano-SiO2 are stored in the in use stock, 80,400 tonnes have been accumulated in sediments and 65,600 tonnes in natural and urban soil from 1990 to 2014. The magnitude of flows in waste management processes in different regions varies because of differences in waste handling. For example, concentrations in landfilled waste are lowest in South eastern Europe due to dilution by the high amount of landfilled waste in the region. The flows predicted in this work can serve as improved input data for mechanistic environmental fate models and risk assessment studies compared to previous estimates using static models. PMID- 29331891 TI - Global association between ambient air pollution and blood pressure: A systematic review and meta-analysis. AB - Although numerous studies have investigated the association of ambient air pollution with hypertension and blood pressure (BP), the results were inconsistent. We performed a comprehensive systematic review and meta-analysis of these studies. Seven international and Chinese databases were searched for studies examining the associations of particulate (diameter<2.5 MUm (PM2.5), 2.5 10 MUm (PM2.5-10) or >10 MUm (PM10)) and gaseous (sulfur dioxide (SO2), nitrogen dioxide (NO2), nitrogen oxides (NOx), ozone (O3), carbon monoxide (CO)) air pollutants with hypertension or BP. Odds ratios (OR), regression coefficients (beta) and their 95% confidence intervals were calculated to evaluate the strength of the associations. Subgroup analysis, sensitivity analysis, and meta regression analysis were also conducted. The overall meta-analysis showed significant associations of long-term exposures to PM2.5 with hypertension (OR = 1.05), and of PM10, PM2.5, and NO2 with DBP (beta values: 0.47-0.86 mmHg). In addition, short-term exposures to four (PM10, PM2.5, SO2, NO2), two (PM2.5 and SO2), and four air pollutants (PM10, PM2.5, SO2, and NO2), were significantly associated with hypertension (ORs: 1.05-1.10), SBP (beta values: 0.53-0.75 mmHg) and DBP (beta values: 0.15-0.64 mmHg), respectively. Stratified analyses showed a generally stronger relationship among studies of men, Asians, North Americans, and areas with higher air pollutant levels. In conclusion, our study indicates a positive association between ambient air pollution and increased BP and hypertension. Geographical and socio-demographic factors may modify the pro hypertensive effects of air pollutants. PMID- 29331893 TI - Ambient volatile organic compounds (VOCs) in communities of the Athabasca oil sands region: Sources and screening health risk assessment. AB - An investigation of ambient levels and sources of volatile organic compounds (VOCs) and associated public health risks was carried out at two northern Alberta oil sands communities (Fort McKay and Fort McMurray located < 25 km and >30 km from oil sands development, respectively) for the period January 2010-March 2015. Levels of total detected VOCs were comparatively similar at both communities (Fort McKay: geometric mean = 22.8 MUg/m3, interquartile range, IQR = 13.8-41 MUg/m3); (Fort McMurray: geometric mean = 23.3 MUg/m3, IQR = 12.0-41 MUg/m3). In general, methanol (24%-50%), alkanes (26%-32%) and acetaldehyde (23%-30%) were the predominant VOCs followed by acetone (20%-24%) and aromatics (~9%). Mean and maximum ambient concentrations of selected hazardous VOCs were compared to health risk screening criteria used by United States regulatory agencies. The Positive matrix factorization (PMF) model was used to identify and apportion VOC sources at Fort McKay and Fort McMurray. Five sources were identified at Fort McKay, where four sources (oil sands fugitives, liquid/unburned fuel, ethylbenzene/xylene-rich and petroleum processing) were oil sands related emissions and contributed to 70% of total VOCs. At Fort McMurray six sources were identified, where local sources other than oil sands development were also observed. Contribution of aged air mass/regional transport including biomass burning emissions was ~30% of total VOCs at both communities. Source-specific carcinogenic and non-carcinogenic risk values were also calculated and were below acceptable and safe levels of risk, except for aged air mass/regional transport (at both communities), and ethylbenzene/xylene-rich (only at Fort McMurray). PMID- 29331894 TI - Pharmaceutical concentration variability at sewage treatment plant outlets dominated by hydrology and other factors. AB - A study was conducted in which the effluent at four small to medium sized sewage treatment plants (STP) in North Rhine-Westphalia, Germany was monitored for three pharmaceutical compounds (carbamazepine, diclofenac, metoprolol) over a period of four years. Grab sampling and auto sampling campaigns were accomplished with respect to various weather conditions in the catchment area. Flow volumes and hydraulic retention times (HRT) from various sampling dates which provide information on processes causing emission changes were additionally taken into account. Monitoring results showed that concentration scattering in the effluent is related to HRT in the sewage treatment plants. Dilution effects following rain events in the catchment area were analysed for the three investigated substances. Short-term emission changes explained by dilution only could be well determined by the mathematical relation between discharge and concentration, and for carbamazepine to be solely determined by the dilution effects at all HRTs. For metoprolol, a clear decrease in concentrations was observed at HRTs above 80 h, and a significant contribution of biodegradation was supported by independent biodegradation tests. For three out of the four STPs, a decrease in concentrations of diclofenac was observed at hydraulic retention times above 80 h, indicating removal, whereas the relationship between concentration and HRT of the other STP could be explained by dilution only. The study shows that emissions can vary with weather conditions, hampering the assessment of emissions and estimation of concentrations in surface waters from generic removal rates only. Furthermore, it illustrates the importance of HRT of rather stable substances in wastewater treatment. PMID- 29331895 TI - Reduction in soil N2O emissions by pH manipulation and enhanced nosZ gene transcription under different water regimes. AB - Several studies have been carried out to examine nitrous oxide (N2O) emissions from agricultural soils in the past. However, the emissions of N2O particularly during amelioration of acidic soils have been rarely studied. We carried out the present study using a rice-rapeseed rotation soil (pH 5.44) that was amended with dolomite (0, 1 and 2 g kg-1 soil) under 60% water filled pore space (WFPS) and flooding. N2O emissions and several soil properties (pH, NH4+N, NO3--N, and nosZ gene transcripts) were measured throughout the study. The increase in soil pH with dolomite application triggered soil N transformation and transcripts of nosZ gene controlling N2O emissions under both water regimes (60% WFPS and flooding). The 60% WFPS produced higher soil N2O emissions than that of flooding, and dolomite largely reduced N2O emissions at higher pH under both water regimes through enhanced transcription of nosZ gene. The results suggest that ameliorating soil acidity with dolomite can substantially mitigate N2O emissions through promoting nosZ gene transcription. PMID- 29331896 TI - Environmentally available hexavalent chromium in soils and sediments impacted by dispersed fly ash in Sarigkiol basin (Northern Greece). AB - Hexavalent chromium is one of the most toxic and carcinogenic species known and can be released into the environment from several sources. In Sarigkiol basin (N Greece) the presence of Cr(VI) in soil, sediments and groundwater may originate from both natural (ophiolitic rocks and their weathering products) and anthropogenic (dispersed fly ash produced from lignite power plants) sources. In this study, the distribution of contents and origin of environmentally available Cr(VI) in soils, sediments, regoliths and fly ash of Sarigkiol basin is presented. Detailed geochemical and mineralogical studies were performed on soil samples (up to 1 m) and regoliths, while leaching tests were also applied to fresh and old fly ash samples. Leachable chromium from soil and sediment samples generally increased with depth and the highest concentrations were observed near to the power plant of Agios Dimitrios. The speciation of chromium in leachates revealed that Cr(VI) concentrations accounted for more than 96% of total Cr. Leaching tests of regoliths established that the natural contribution of Cr(VI) is up to 14 MUg kg-1. Therefore, the measurement of higher concentrations (up to 80 MUg kg-1) of environmentally available Cr(VI) in soils and sediments can be attributed to the impact/presence of dispersed fly ash in the soils and sediments of the same area. This was also supported by the low correlation recorded between environmentally available chromium and Cr-bearing minerals (mainly serpentine and talc). The influenced zone is located in the eastern part of the basin near the local power plant and surrounds an open conveyor belt that transfers fly ash to an open temporary storage pit. This zone overlies an unconfined porous aquifer thus explaining the elevated concentrations of Cr(VI) in groundwater (up to 120 MUg L-1) previously reported in this area. PMID- 29331897 TI - A framework for delineating the regional boundaries of PM2.5 pollution: A case study of China. AB - Fine particulate matter (PM2.5) pollution has been a major issue in many countries. Considerable studies have demonstrated that PM2.5 pollution is a regional issue, but little research has been done to investigate the regional extent of PM2.5 pollution or to define areas in which PM2.5 pollutants interact. To allow for a better understanding of the regional nature and spatial patterns of PM2.5 pollution, This study proposes a novel framework for delineating regional boundaries of PM2.5 pollution. The framework consists of four steps, including cross-correlation analysis, time-series clustering, generation of Voronoi polygons, and polygon smoothing using polynomial approximation with exponential kernel method. Using the framework, the regional PM2.5 boundaries for China are produced and the boundaries define areas where the monthly PM2.5 time series of any two cities show, on average, more than 50% similarity with each other. These areas demonstrate straightforwardly that PM2.5 pollution is not limited to a single city or a single province. We also found that the PM2.5 areas in China tend to be larger in cold months, but more fragmented in warm months, suggesting that, in cold months, the interactions between PM2.5 concentrations in adjacent cities are stronger than in warmer months. The proposed framework provides a tool to delineate PM2.5 boundaries and identify areas where PM2.5 pollutants interact. It can help define air pollution management zones and assess impacts related to PM2.5 pollution. It can also be used in analyses of other air pollutants. PMID- 29331898 TI - Coadsorption and subsequent redox conversion behaviors of As(III) and Cr(VI) on Al-containing ferrihydrite. AB - Naturally occurring ferrihydrite often contains various impurities, and Al is one of the most prominent impurities. However, little is known about how these impurities impact the physical and chemical properties of ferrihydrite with respect to metal(loid) adsorption. In this study, a series of Al-containing ferrihydrites were synthesized and exposed to a mixed solution containing As(III) and Cr(VI). The results showed that the two contaminants can be quickly adsorbed onto the surface of Al-containing ferrihydrite under acidic and neutral conditions. With the increase of Al molar percentage in ferrihydrites from 0 to 30, the adsorption capacity of As(III) decreased, whereas it increased for Cr(VI). On the other hand, with the increase of pH value from 3.0 to 11.0, the decreasing rate of As(III) was accelerated first, then slowed down, whereas the Cr(VI) decreasing rate slowed down dramatically. X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) analysis method, transmission electron microscopy (TEM) analysis, energy dispersive spectroscopy (EDS) mapping, Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy (ATR-FTIR), and X-ray photoelectron spectroscopy (XPS) were employed to characterize Al-containing ferrihydrite. Interestingly, it was found that the redox transformation occurred between As(III) and Cr(VI) after the two contaminants were coadsorbed onto the surface of Al-containing ferrihydrite. The oxidation of As(III) to As(V) and reduction of Cr(VI) to Cr(III) would greatly lower the environmental hazard of the As(III) and Cr(VI). PMID- 29331899 TI - The speed of memory errors shows the influence of misleading information: Testing the diffusion model and discrete-state models. AB - In this report, we evaluate single-item and forced-choice recognition memory for the same items and use the resulting accuracy and reaction time data to test the predictions of discrete-state and continuous models. For the single-item trials, participants saw a word and indicated whether or not it was studied on a previous list. The forced-choice trials had one studied and one non-studied word that both appeared in the earlier single-item trials and both received the same response. Thus, forced-choice trials always had one word with a previous correct response and one with a previous error. Participants were asked to select the studied word regardless of whether they previously called both words "studied" or "not studied." The diffusion model predicts that forced-choice accuracy should be lower when the word with a previous error had a fast versus a slow single-item RT, because fast errors are associated with more compelling misleading memory retrieval. The two-high-threshold (2HT) model does not share this prediction because all errors are guesses, so error RT is not related to memory strength. A low-threshold version of the discrete state approach predicts an effect similar to the diffusion model, because errors are a mixture of responses based on misleading retrieval and guesses, and the guesses should tend to be slower. Results showed that faster single-trial errors were associated with lower forced choice accuracy, as predicted by the diffusion and low-threshold models. PMID- 29331900 TI - A catalytic and dual recycling amplification ATP sensor based on target-driven allosteric structure switching of aptamer beacons. AB - Abnormal concentrations of ATP are associated with many diseases and cancers, and quantitative detection of ATP is thus of great importance for disease diagnosis and prognosis. In the present work, we report a new dual recycling amplification sensor integrated with catalytic hairpin assembly (CHA) to achieve high sensitivity for fluorescent detection of ATP. The association of the target ATP with the aptamer beacons causes the allosteric structure switching of the aptamer beacons to expose the toehold regions, which hybridize with and unfold the fluorescently quenched hairpin signal probes (HP1) to recycle the target ATP and to trigger CHA between HP1 and the secondary hairpin probes (HP2) to form HP1/HP2 duplexes. Due to the recycling amplification, the presence of ATP leads to the formation of many HP1/HP2 duplexes, generating dramatically amplified fluorescent signals for sensitive detection of ATP. Under optimal experimental conditions, our sensor linearly responds to ATP in the range from 25 to 600nM with a calculated detection limit of 8.2nM. Furthermore, the sensor shows a high selectivity and can also be used to detect ATP in human serums to realize its application for real samples. With the distinct advantage of significant signal amplification without the involvement of any nanomaterial and enzyme, the developed sensor thus holds great potential for simple and sensitive detection of different small molecules and proteins. PMID- 29331901 TI - An ultrasensitive detection of miRNA-155 in breast cancer via direct hybridization assay using two-dimensional molybdenum disulfide field-effect transistor biosensor. AB - MicroRNAs (miRNAs), critical biomarkers of acute and chronic diseases, play key regulatory roles in many biological processes. As a result, robust assay platforms to enable an accurate and efficient detection of low-level miRNAs in complex biological samples are of great significance. In this work, a label-free and direct hybridization assay using molybdenum disulfide (MoS2) field-effect transistor (FET) biosensor has been developed for ultrasensitive detection of miRNA-155 as a breast cancer biomarker in human serum and cell-line samples. MoS2, the novel 2D layered material with excellent physical and chemical properties, was prepared through sequential solvent exchange method and was used as an active channel material. MoS2 was comprehensively characterized by spectroscopic and microscopic methods and it was applied for fabrication of FET device by drop-casting MoS2 flacks suspension onto the FET surface. MoS2 FET device showed a relatively low subthreshold swing of 48.10mV/decade and a high mobility of 1.98 * 103cm2V-1s-1. Subsequently, probe miRNA-155 strands were immobilized on the surface of the MoS2 FET device. Under optimized conditions detection limit of 0.03fM and concentration range 0.1fM to 10nM were achieved. The developed biosensor not only was capable to identification of fully matched versus one-base mismatch miRNA-155 sequence, but also it could detect target miRNA-155 in spiked real human serum and extracts from human breast cancer cell line samples. This approach paves a way for label-free, early detection of miRNA as a biomarker in cancer diagnostics with very high sensitivity and good specificity, thus offering a significant potential for clinical application. PMID- 29331902 TI - The use of interprofessional learning and simulation in undergraduate nursing programs to address interprofessional communication and collaboration: An integrative review of the literature. AB - OBJECTIVE: To identify how simulation and interprofessional learning are used together in undergraduate nursing programs and undertaken in schools of nursing to address interprofessional communication and collaboration. DESIGN: An integrative literature review. DATA SOURCES: The databases CINAHL, ProQuest, PubMed, Scopus, PsycInfo and Science Direct were searched to identify articles from 2006 to 2016 that reported on the use of IPL and simulation together in undergraduate nursing education. REVIEW METHOD: Whittemore and Knafl's five step process was used to guide the integrative review of quantitative and qualitative literature. Only peer reviewed articles written in English that addressed undergraduate nursing studies, were included in the review. Articles that did not aim to improve communication and collaboration were excluded. All articles selected were examined to determine their contribution to interprofessional learning and simulation in undergraduate nursing knowledge. RESULTS: The faculties of nursing used interprofessional learning and simulation in undergraduate nursing programs that in some cases were connected to a specific course. A total of nine articles, eight research papers and one narrative report, that focused on collaboration and communication were selected for this review. Studies predominantly used nursing and medical student participants. None of the included studies identified prior student experience with interprofessional learning and simulation. Four key themes were identified: communication, collaboration/teamwork, learning in practice and understanding of roles, and communication. CONCLUSION: This review highlights the identified research relating to the combined teaching strategy of interprofessional learning and simulation that addressed communication and collaboration in undergraduate nursing programs. Further research into the implementation of interprofessional learning and simulation may benefit the emergent challenges. Information drawn from this review can be used in informing education and educational development in the future. PMID- 29331903 TI - Rapid structure prediction by HPLC-ESI-MSn of twenty-five polyoxypregnane tetraglycosides from Dregea sinensis with NMR confirmation of eight structures. AB - Dregea sinensis Hemsl is an important herbal medicine in the Dai nationality of China. Its prominent clinical application has generated interest in the polyoxypregnane glycosides of the plant. This paper describes an extension of previous research on the polyoxypregnane di- and triglycosides of D. sinensis, aiming at identifying related tetraglycosides. On the basis of HPLC-ESI-MSn analysis in positive mode, twenty-five previously undescribed polyoxypregnane tetraglycosides were characterized (regarding molecular masses and fragmentation in MSn) from an ethyl acetate fraction that was not previously investigated. Guided by MSn fragmentation and known structures of related di- and triglycosides from D. sinensis, tentative structures were predicted from the MS data. In order to test the predictions, eight of the glycosides were isolated and their structures were elucidated by 1D and 2D NMR methods, confirming the tentative predictions. Finally, the cytotoxicity of the isolates was evaluated on several human cell lines with little effect in general, even though slight inhibitory effects of four polyoxypregnane glycosides were detected at 10 MUM against the human leukemia cell line HL-60. PMID- 29331904 TI - Anthocyanins in perilla plants and dried leaves. AB - High-quality perilla leaves are purple on upper and lower surfaces and have a good aroma. The Japanese Pharmacopoeia specifies the content of essential oils in perilla leaves but not that of anthocyanins. Several reports have described the chemical species of anthocyanins in red perilla, but a complete analysis of anthocyanins in perilla has not been reported. In this study, the anthocyanins in the leaves of cultivated and wild species of perilla and those in commercially available perilla herbs were studied. Red perilla and most P. citriodora strains accumulate cyanidin derivatives that differ in the acyl group on the glucose moiety at the 3-O- and 5-O-positions of the anthocyanins. Several strains of P. citriodora contain cyanidin derivatives that are different from those in red perilla and most P. citriodora species. Green perilla and wild species other than P. citriodora do not contain foliar anthocyanins. The anthocyanins in commercially available perilla herbs and natural dyes made from red perilla were in agreement with those in fresh red perilla leaves and most P. citriodora samples. The amounts and types of anthocyanins were not associated with place of cultivation, although some changes occurred due to degradation during storage. These results provide clues regarding the biosynthesis of anthocyanins in perilla and the evolution of red perilla. The characteristics and stability of anthocyanins are discussed. PMID- 29331905 TI - Macrophage phenotype switch by sequential action of immunomodulatory cytokines from hydrogel layers on titania nanotubes. AB - Inflammatory response occurring between tissues and implants after implantation has attracted increasing attention because it can cause local tissue necrosis and even implant failure. Macrophages play a key role in all stages of inflammation. Pro-inflammatory (M1) and anti-inflammatory (M2) macrophages comprise two main phenotypes and the switch from M1 to M2 at specific time points is important for wound healing and tissue regeneration. Therefore, we hypothesized that biomaterial systems capable of facilitating macrophage phenotype switching should attenuate inflammation and enhance healing. To this end, a system of double hydrogel layers on titania nanotubes (TNT) was prepared as reservoir to modulate the release of interleukin-4 (IL-4) and interferon-gamma (IFN-gamma). In this system, IL-4, an anti-inflammatory cytokine, was loaded in TNT and IFN-gamma, a pro-inflammatory cytokine, was located between two hydrogel layers of chitosan/beta-glycerophosphate disodium and carboxymethyl chitosan/genipin. IFN gamma released rapidly in 3 days, whereas IL-4 exhibited a sustained release profile. In culture with mesenchymal stem cells and macrophages, this system displayed good cytocompatibility and significantly promoted cell proliferation. Macrophage phenotype switch was determined by ELISA, FACS and PCR. The results manifested that IFN-gamma released from the system stimulated switching of macrophages to M1 in 3 days, whereas sustained release of IL-4 polarized macrophages to M2 after 4 days. This system can modulate macrophage phenotype switching from M1 to M2 by sequential action of the two cytokines, and might be used to research immune response between tissues and implants. The present study also provided a novel strategy for designing functional biomaterials. PMID- 29331906 TI - Strontium Hydroxyapatite scaffolds engineered with stem cells aid osteointegration and osteogenesis in osteoporotic sheep model. AB - Osteoporotic fracture healing is an orthopaedic challenge due to excessive bone resorption and impaired osteogenesis. Majority of current treatment strategies focus on regulating bone resorption and the potential application of Mesenchymal Stem Cells (MSCs) in promoting osteogenesis has not been explored much. Furthermore, the present study has put forth a novel approach, wherein the synergistic action of Strontium (Sr) and MSCs in a single implant may facilitate osteoporotic bone healing. Strontium Hydroxyapatite (SrHA) synthesized by wet precipitation was fabricated into tissue engineered Strontium incorporated Hydroxyapatite (cSrHA) using sheep adipose tissue derived MSCs (ADMSCs). Porosity, radiopacity and cytocompatibility of SrHA scaffolds were found appropriate for orthopaedic applications. cSrHA scaffolds exhibited an in vitro Alkaline Phosphatase activity of 20 MUmol pnp/30 min comparable to that of Hydroxyapatite (HA) - control scaffold, proving its osteogenic efficacy. Implantation studies in sheep osteoporotic model depicted enhanced osteogenic ability with mature lamellar bone formation in cSrHA implanted group, compared to bare HA, SrHA and tissue engineered HA implanted groups. Histomorphometry data substantiated improved osteogenesis on par with material resorption, as cSrHA implanted group exhibited highest regeneration ratio of 0.38 +/- 0.05. Density histograms from micro CT further signified the enhanced osteointegrative ability of cSrHA implants. Results of the study depicted the therapeutic potential of cSrHA in osteoporotic bone healing and proposes the use of allogenic ADMSCs for fabricating "Off the Shelf Tissue Engineered Products". PMID- 29331907 TI - Applying ultraviolet/persulfate (UV/PS) pre-oxidation for controlling ultrafiltration membrane fouling by natural organic matter (NOM) in surface water. AB - Membrane fouling is a recognized obstacle for the application of ultrafiltration (UF) for drinking water treatment. In this study, ultraviolet/persulfate (UV/PS) oxidation was employed as a pretreatment to control membrane fouling caused by natural organic matter (NOM) in surface water. The effects of UV/PS pretreatment on amounts and characteristics of NOM were investigated in terms of dissolved organic carbon, fluorescent spectrum, molecular weight distribution and hydrophobicity. UF membrane fouling during filtration of raw and pre-oxidized water was compared with transmembrane pressure development, and the fouled membranes were further characterized using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The results indicate that NOM was considerably degraded and partially mineralized (~58%) by UV/PS pretreatment at a PS dose not exceeding 0.6 mM and a UV irradiation time within 120 min, which was attributed to the generation of sulfate and hydroxyl radicals. The fluorescent compounds in NOM were almost completely degraded (>98%) by the UV/PS pretreatment at a PS dose of 0.4 mM, except for tyrosine-like proteins (~80%). Moreover, UV/PS pretreatment decreased the ratio of macromolecular compounds and increased the hydrophilic fractions, resulting in reduced NOM adhesion to the membrane. Hence, irreversible fouling by NOM was significantly retarded (~75%) by the UV/PS pretreatment due to reduction in NOM, and more importantly by preferential degradation of fluorescent, macromolecular and hydrophobic compounds. Fouling control performance was considerably improved at increased PS doses and extended UV irradiation time. PMID- 29331908 TI - Electricity production and phosphorous recovery as struvite from synthetic wastewater using magnesium-air fuel cell electrocoagulation. AB - This research was based on the investigation of a major principle, regarding the effects of NaCl and KH2PO4 concentrations on struvite recovery, with electricity production using magnesium-air fuel cell electrocoagulation, in accordance with the concentration of phosphorous and chloride. The weight ratio of N:P in the synthetic wastewater was in the range of 1.2-21. The concentration of NH4Cl was fixed at 0.277 M (approximately 3888 ppm as NH3-N and 5000 ppm as NH4), while PO4 P was in the range of 0.006-0.1 M. In addition, the concentrations of NaCl as electrolyte were 0, 0.01, and 0.1 M. Phosphate removal increased linearly with the Mg:P ratio, up to approximately 1.1 mol mol-1, irrespective of the initial concentrations of phosphate and NaCl. The one-to-one reaction as mole ratio between phosphate and the dissolved Mg ions resulted in phosphate removal, with the production of a one-to-one magnesium/phosphate mineral, such as struvite. The average removal rate of phosphorous in experiments without a dose of NaCl was 4.19 mg P cm-2 h-1, which was lower than the relative values of 5.35 and 4.77 mg P cm-2 h-1, in experiments with 0.01 and 0.1 M NaCl. The dissolution rate of Mg with electro-oxidation determined the rate of phosphorous removal with struvite recovery. The average removal rates of phosphorous with dose concentrations of 0.006, 0.01 and 0.02 M KH2PO4 were 4.02, 5.54, 6.9 mg P cm-2 h-1, respectively, which increased with the increase in KH2PO4 dose. However, in experiments with a dose of 0.05 and 0.1 M KH2PO4, the average removal rates of phosphorous decreased to 4.84 and 2.51, respectively. The maximum power densities in the electrolyte mixture of 0.05 M KH2PO4/0.277 M NH4Cl, 0.01 M NaCl/0.05 M KH2PO4/0.277 M NH4Cl, and 0.1 NaCl/0.05 KH2PO4/0.277 M NH4Cl were 25.1, 26.4, and 33.2 W/m2, respectively. The increase in the NaCl dose concentration resulted in an increase in the maximum power density and current density. A dose above 0.05 M KH2PO4 resulted in the decrease of the maximum power densities. However, when the dose was below 0.05 M KH2PO4, the maximum power density increased with the increase in KH2PO4 dose. PMID- 29331909 TI - Linking composition of extracellular polymeric substances (EPS) to the physical structure and hydraulic resistance of membrane biofilms. AB - The effect of extracellular polymeric substances (EPS) on the meso-scale physical structure and hydraulic resistance of membrane biofilms during gravity driven membrane (GDM) filtration was investigated. Biofilms were developed on the surface of ultrafiltration membranes during dead-end filtration at ultra-low pressure (70 mbar). Biofilm EPS composition (total protein, polysaccharide and eDNA) was manipulated by growing biofilms under contrasting nutrient conditions. Nutrient conditions consisted of (i) a nutrient enriched condition with a nutrient ratio of 100:30:10 (C: N: P), (ii) a phosphorus limitation (C: N: P ratio: 100:30:0), and (iii) a nitrogen limitation (C: N: P ratio: 100:0:10). The structure of the biofilm was characterised at meso-scale using Optical Coherence Tomography (OCT). Biofilm composition was analysed with respect to total organic carbon, total cellular mass and extracellular concentrations of proteins, polysaccharides, and eDNA. 2D-confocal Raman mapping was used to characterise the functional group composition and micro-scale distribution of the biofilms EPS. Our study reveals that the composition of the EPS matrix can determine the meso scale physical structure of membrane biofilms and in turn its hydraulic resistance. Biofilms grown under P limiting conditions were characterised by dense and homogeneous physical structures with high concentrations of polysaccharides and eDNA. Biofilm grown under nutrient enriched or N limiting conditions were characterised by heterogeneous physical structures with lower concentrations of polysaccharides and eDNA. For P limiting biofilms, 2D-confocal Raman microscopy revealed a homogeneous spatial distribution of anionic functional groups in homogeneous biofilm structures with higher polysaccharide and eDNA concentrations. This study links EPS composition, physical structure and hydraulic resistance of membrane biofilms, with practical relevance for the hydraulic performances of GDM ultrafiltration. PMID- 29331910 TI - Review of synthetic human faeces and faecal sludge for sanitation and wastewater research. AB - Investigations involving human faeces and faecal sludge are of great importance for urban sanitation, such as operation and maintenance of sewer systems, or implementation of faecal sludge management. However, working with real faecal matter is difficult as it not only involves working with a pathogenic, malodorous material but also individual faeces and faecal sludge samples are highly variable, making it difficult to execute repeatable experiments. Synthetic faeces and faecal sludge can provide consistently reproducible substrate and alleviate these challenges. A critical literature review of simulants developed for various wastewater and faecal sludge related research is provided. Most individual studies sought to develop a simulant representative of specific physical, chemical, or thermal properties depending on their research objectives. Based on the review, a suitable simulant can be chosen and used or further developed according to the research needs. As an example, the authors present such a modification for the development of a simulant that can be used for investigating the motion (movement, settling and sedimentation) of faeces and their physical and biological disintegration in sewers and in on-site sanitation systems. PMID- 29331911 TI - Enhanced photocatalytic degradation of sulfamethoxazole by zinc oxide photocatalyst in the presence of fluoride ions: Optimization of parameters and toxicological evaluation. AB - The presence of antibiotics in water bodies has received increasing attention since they are continuously introduced and detected in the environment and may cause unpredictable environmental hazards and risks. The photocatalytic degradation of sulfamethoxazole (SMX) by ZnO in the presence of fluoride ions (F ZnO) was evaluated. The effects of operating parameters on the efficiency of SMX removal were investigated by using response surface methodology (RSM). Under the optimum condition, i.e. photocatalyst dosage = 1.48 g/L, pH 4.7, airflow rate = 2.5 L/min and the concentration of fluoride ions = 2.505 mM, about 97% SMX removal was achieved by F-ZnO after 30 min of reaction. The mechanism of reactions, COD removal efficiency and reaction kinetics were also investigated under optimum operating conditions. In addition, about 85% COD reduction was obtained after 90 min photocatalytic reaction. The pseudo-first-order kinetics rate constants for the photodegradation of SMX were found to be 0.099, 0.058 and 0.048 min-1 by F-ZnO, ZnO and TiO2 (P25), respectively. The figure-of-merit electrical energy per order (EEO) was used for estimating the electrical energy efficiency, which was shown to be considerably lower than the energy consumption for the reported research on removal of SMX by photocatalytic degradation under UV irradiation. Toxicity assays were conducted by measuring the inhibition percentage (PI) towards E. coli bacteria strain and by agar well diffusion method. The results showed that after 30 min of reaction, the toxicity of the treated solutions by all photocatalysts fell within the non-toxic range; however, the reduction in toxicity by F-ZnO was faster than those by ZnO and P25. Despite the positive effects of surface fluorination of ZnO on the SMX and COD removal and reaction kinetics, its lower stability compared to ZnO and P25 in the repeated experiments gave rise to some doubts about its performance from a practical point of view. PMID- 29331912 TI - Elucidating the impacts of initial supersaturation and seed crystal loading on struvite precipitation kinetics, fines production, and crystal growth. AB - To reduce intra-plant nutrient cycling, and recover phosphorus (P) fertilizers from nutrient-rich sidestreams, wastewater utilities increasingly elect to employ struvite precipitation processes without a clear understanding of the inherent tradeoffs associated with specific design and operating decisions. Specifically, the impact of reactor conditions on struvite crystallization rate, and distribution between formation of fines particles and secondary growth onto large diameter seed crystals represent critical knowledge gaps limiting the predictive capabilities of existing process models. In this work, the relative impacts of initial supersaturation (Si), and seed loading, on P removal kinetics, and struvite solids distribution were investigated. In experiments conducted at different levels of initial supersaturation (1.7-2.4) and seed loading (0-25 g L 1), struvite fines represented the majority of phosphate solids formed in 10 of 12 conditions. While total P removal was dependent on Si, and primarily attributed to formation of fines, the concentration of struvite seed granules had a significant impact on the rate of P removal. Struvite seed granules increased the rate of precipitation by reducing induction time of primary nucleation of struvite fines. Secondary crystal growth represented the majority of struvite solids formed at high seed loading and low Si, but presented the tradeoff of low total removal and low rate of removal. To convey the significance of these findings on process modeling, we show how a prominent kinetic model with a first order dependency on solid struvite concentration over-predicts P removal rate when total mass is dominated by large diameter seeds (0.9 mm). This works reveals the critical role of struvite fines in P removal, and highlights the need to account for their production and kinetic importance in struvite process design and operation. PMID- 29331913 TI - Speciation evolution of zinc and copper during pyrolysis and hydrothermal carbonization treatments of sewage sludges. AB - Thermal and hydrothermal treatments are promising techniques for sewage sludge management that can potentially facilitate safe waste disposal, energy recovery, and nutrient recovery/recycling. Content and speciation of heavy metals in the treatment products affect the potential environmental risks upon sludge disposal and/or application of the treatment products. Therefore, it is important to study the speciation transformation of heavy metals and the effects of treatment conditions. By combining synchrotron X-ray spectroscopy/microscopy analysis and sequential chemical extraction, this study systematically characterized the speciation of Zn and Cu in municipal sewage sludges and their chars derived from pyrolysis (a representative thermal treatment technique) and hydrothermal carbonization (HTC; a representative hydrothermal treatment technique). Spectroscopy analysis revealed enhanced sulfidation of Zn and Cu by anaerobic digestion and HTC treatments, as compared to desulfidation by pyrolysis. Overall, changes in the chemical speciation and matrix properties led to reduced mobility of Zn and Cu in the treatment products. These results provide insights into the reaction mechanisms during pyrolysis and HTC treatments of sludges and can help evaluate the environmental/health risks associated with the metals in the treatment products. PMID- 29331914 TI - Pore diffusion limits removal of monochloramine in treatment of swimming pool water using granular activated carbon. AB - Overall apparent reaction rates for the removal of monochloramine (MCA) in granular activated carbon (GAC) beds were determined using a fixed-bed reactor system and under conditions typical for swimming pool water treatment. Reaction rates dropped and quasi-stationary conditions were reached quickly. Diffusional mass transport in the pores was shown to be limiting the overall reaction rate. This was reflected consistently in the Thiele modulus, in the effect of temperature, pore size distribution and of grain size on the reaction rates. Pores <2.5 times the diameter of the monochloramine molecule were shown to be barely accessible for the monochloramine conversion reaction. GACs with a significant proportion of large mesopores were found to have the highest overall reactivity for monochloramine removal. PMID- 29331915 TI - Theory of water treatment by capacitive deionization with redox active porous electrodes. AB - Capacitive deionization (CDI) for water treatment, which relies on the capture of charged species to sustain the electrical double layers (EDLs) established within porous electrodes under an applied electrical potential, can be enhanced by the chemical attachment of fixed charged groups to the porous electrode electrodes (ECDI). It has recently been demonstrated that further improvements in capacity and energy storage can be gained by functionalization of the electrode surfaces with redox polymers in which the charge on the electrodes can be modulated through Faradaic reactions under different cell voltages in a capacitive process that can be called "Faradaic CDI" (FaCDI). Here, we extend recent mathematical models developed for the characterization of CDI and ECDI systems to incorporate the redox mediated contributions by allowing for the variable chemical charges generated by reactions in FaCDI. The lumped model developed here assumes the spacer channel is well-mixed with uniform electrosorption in each electrode. We demonstrate that the salt adsorption performance characterization of the fixed chemical charge ECDI and variable chemical charge FaCDI materials can be unified within a common theoretical framework based on the point of zero charge (PZC) of the electrode material. In the latter case the PZC is determined by the equilibrium potentials of the redox couples immobilized on the porous electrodes. The new model is able to predict the experimentally observed enhanced and inverted performance of CDI cells, and illuminates the benefit of choosing redox active materials for water treatment applications. The deionization performance of FaCDI cells is shown to be superior to that of CDI and ECDI systems with equilibrium adsorption capacities 50-100% higher than attained with CDI systems, and at smaller cell voltages, depending on the redox potentials of the Faradaic moieties. PMID- 29331916 TI - Aerobic exercise is more effective than goal-based exercise for the treatment of cognition in Parkinson's disease. AB - BACKGROUND: Little is known about how different exercise modalities influence cognition in Parkinson's disease (PD). Moreover, the focus of previous investigations on examining the effects of exercise mainly on executive functions and the exclusion of individuals with cognitive impairment may limit the potential to define exercise as a treatment for cognitive decline in PD. OBJECTIVE: The aim of this study was to compare the effects of aerobic and goal based exercise on five cognitive domains in cognitively normal and impaired individuals with PD. METHODS: Seventy-six individuals with PD were randomly allocated into three groups: Aerobic, Goal-based, and Control. Participants in the exercise groups attended 1-h sessions 3x/week for 12 weeks, while those in the Control group carried on with their regular activities. Changes in cognitive domains were assessed using paper-based neuropsychological tests. RESULTS: Inhibitory control improved only in the Aerobic group (p = .04), irrespective of participants cognitive status at baseline. Moreover, participants with cognitive impairment in Aerobic group maintained their set-shifting ability, whereas those in the Control group were worse at post-test (p = .014). CONCLUSION: This is the first study to show that aerobic exercise is more effective than goal-based exercise for the treatment of cognition in PD with and without cognitive impairment. PMID- 29331917 TI - Comparision of photocatalysis and photolysis processes for arsenic oxidation in water. AB - The oxidation of As(III) to As(V) in aqueous solution was evaluated using heterogeneous photocatalysis and photolysis. The influence of TiO2 as catalyst in different crystalline (rutile, anatase) and commercial forms was evaluated in a batch reactor and an insignificant difference was observed between them. The process by photocatalysis reached up to 97% As(III) oxidation and no significant difference was observed comparing to results obtained by photolysis. The photolysis experiments (UV radiation only), also carried out in a batch system, showed a high oxidation rate of As(III) (90% in 20min). The influence of different matrices (well water, river water and public water supply) were evaluated. Additionally, the effect of As(V) concentration, generated during the oxidation process, was studied. Continuous photolysis experiments using only UV radiation were performed, resulting in a high As(III) oxidation rate. Using a flow rate of 5mLmin-1 and an initial concentration of As(III) 200ugL-1, gave an oxidation percentage of As(III) of up to 72%, showing a simple and economical alternative to the oxidation step of As(III) to As(V) in the treatment of water contaminated with arsenic. PMID- 29331918 TI - DNA damage in marine rock oyster (Saccostrea Cucullata) exposed to environmentally available PAHs and heavy metals along the Arabian Sea coast. AB - Molecular biomarkers are used world wide for quick assessment of the immediate effect of environmental pollution on marine ecosystems. Recently, we evaluated oxidative stress responses of marine rock oyster, Saccostrea cucullata impacted due to polycyclic aromatic hydrocarbons (PAHs) accumulated in their tissues at a few sampling sites along the coast of Goa around the region of the Arabian sea coast, India (Sarkar et al., 2017). Using a combination of partial alkaline unwinding and comet assays, we now report a comprehensive study on the impairment of DNA integrity (DI) in S. cucullata due to exposure to environmentally available PAHs and also heavy metals (Pb, Cd, Cu, Fe and Mn) along the Arabian Sea coast, Goa, India exclusively around the entire coast of Goa. First, we determined significant correlation between DI in S. cucullata and the extent of exposure to and bioaccumulation of different PAH compounds including 2-3 aromatic ring PAHs (R2, 0.95), 4-6 aromatic ring PAHs (R2, 0.85), oxygenated-PAHs (oxy PAHs, R2, 0.84) and total PAHs (t-PAHs, R2, 0.98). Second, we observed dose dependent decrease in DI in S. cucullata with increasing concentrations of different PAH components in oyster tissues. We substantiated our field observations with appropriate laboratory controls using benzo[a]pyrene (BaP). Third, we performed stepwise multiple regression analyses of different water quality parameters including pH, salinity, temperature, dissolved oxygen (DO), biochemical oxygen demand (BOD), nitrite (NO2), nitrate (NO3), phosphate (PO4), turbidity and also t-PAH-biota, t-PAH-water with DI as the dependent variable. Among all these parameters, only four parameters such as t-PAH-biota in combination with DO, BOD and NO2 showed significant correlation (R-2 = 0.95) with loss in DI in S. cucullata. Based on these results, we created a map indicating the percentage of DNA damage in S. cucullata exposed to PAHs and heavy metals at each sampling location along the west coast of India around Goa, India. PMID- 29331919 TI - Removal of pharmaceutical pollutants from synthetic wastewater using chemically modified biomass of green alga Scenedesmus obliquus. AB - Pharmaceutical compounds are considered emerging environmental pollutants that have a potential harmful impact on environment and human health. In this study, the biomass of alga (Scenedesmus obliquus) was modified using alkaline solution, and used for the biosorption of tramadol (TRAM) and other pharmaceuticals. The adsorption kinetics and isotherms were investigated. The obtained results reveal high adsorption capacity of tramadol over modified algal biomass (MAB) after 45min with removal percentage of 91%. Pseudo-second order model was well fitted with the experimental data with correlation coefficient (0.999). Biosorption of tramadol on modified algal biomass proceeds with Freundlich isotherm model with correlation coefficient (0.942) that emphasized uptake of TRAM by MAB is driven by chemisorption. FTIR spectra of MAB before and after the adsorption were analyzed; some IR bands were detected with slight shift and low intensity suggesting their involving in adsorption. The tramadol biosorption by MAB is a chemical process as confirmed by Dubinin-Radushkevich. The adsorption of pharmaceutical over MAB is mainly preceded by hydrophilic interactions between amino and carbonyl groups in pharmaceutical molecules and hydroxyl and carbonyl functional groups on surface of biosorbent. It was emphasized by disappearance O H and C-O from biomass IR spectra after adsorption. In matrix of pharmaceutical, the recorded adsorption capacities for CEFA, PARA, IBU, TRAM and CIP are 68, 58, 42, 42 and 39mg/g over MAB at natural pH and MAB dose of 0.5g/L. Furthermore, oxygen uptake by bacteria was applied for estimate the toxicity of pharmaceutical. The recorded result concluded the efficient reusability of modified algal biomass for biosorption of pharmaceuticals, as well only the adsorption efficiency decreased by 4.5% after three runs. Subsequently, the modified algal biomass is a promising reusable adsorbent for decontamination of wastewater from pharmaceuticals. PMID- 29331920 TI - Engineering yeast for utilization of alternative feedstocks. AB - Realizing the economic benefits of alternative substrates for commodity chemical bioproduction typically requires significant metabolic engineering of common model organisms, such as Saccharomyces cerevisiae. A growing toolkit is enabling engineering of non-conventional yeast that have robust native metabolism for xylose, acetate, aromatics, and waste lipids. Scheffersomyces stipitis was engineered to produce itaconic acid from xylose. Yarrowia lipolytica produced lipids from dilute acetate at over 100g/L. Cutaneotrichosporon oleaginosus was engineered to produce omega-3 fatty acids and recently was shown to accumulate nearly 70% lipids when grown on aromatics as a carbon source. Further improvement to toolkits for genetic engineering of non-conventional yeast will enable future development of alternative substrate conversion to biochemicals. PMID- 29331921 TI - Cyclotron production of 99mTc: Comparison of known separation technologies for isolation of 99mTc from molybdenum targets. AB - Intensive efforts were undertaken during the last few decades for the separation of cyclotron-produced 99mTc from 99Mo and new papers have been published on this topic since the last review [1]. In the future the cyclotron-based methods can replace reactor-based technology in producing this medical radioisotope and the nuclear reaction 100Mo(p,2n)99mTc appears to be the most worthwhile approach. New ways of producing of 99mTc require efficient separation methods. Several strategies for separation of 99mTc from 99Mo have been already developed. The advantages, disadvantages and technical challenges toward application potential of investigated methods to separate 99mTc from irradiated 100Mo target are discussed. These methods include column chromatography, solvent extraction, chemical precipitation and thermochromatography. PMID- 29331922 TI - Minimum alveolar concentration: Key concepts and a review of its pharmacological reduction in dogs. Part 1. AB - OBJECTIVE: To outline the major components of the minimum alveolar concentration (MAC) and review the literature in regard to pharmacological manipulation of the MAC of halothane, isoflurane, sevoflurane, enflurane, and desflurane in dogs. The pharmacologic agents included are alpha-2 agonists, benzodiazepines, propofol, maropitant, opioids, lidocaine, acepromazine, non-steroidal anti-inflammatory agents, and NMDA antagonists. Part 1 will focus on summarizing the relevance, measurement, and mechanisms of MAC and review the effects of alpha-2 agonists, benzodiazepines, and propofol on MAC. DATABASES USED: PubMed, Google Scholar, CAB Abstracts. Search terms used: minimum alveolar concentration, MAC, dog, canine, inhaled anesthetic potency, isoflurane, sevoflurane, desflurane, enflurane, and halothane. CONCLUSIONS: Many drugs reduce the MAC of inhaled anesthetics in dogs, and allow for a clinically important decrease in inhalant anesthetic use. A decrease in MAC may decrease the adverse cardiovascular and pulmonary effects associated with the use of high concentrations of inhaled anesthetics. PMID- 29331923 TI - Cold-regulated protein (SlCOR413IM1) confers chilling stress tolerance in tomato plants. AB - Chilling stress severely affects the growth, development and productivity of crops. Chloroplast, a photosynthesis site, is extremely sensitive to chilling stress. In this study, the functions of a gene encoding a cold-regulated protein (SlCOR413IM1) under chilling stress were investigated using sense and antisense transgenic tomatoes. Under chilling stress, SlCOR413IM1 expression was rapidly induced and the sense lines exhibited better growth state of seedlings and grown tomato plants. Overexpression of SlCOR413IM1 alleviated chilling-induced damage to the chloroplast membrane and structure, whereas suppression of SlCOR413IM1 aggravated the damage to chloroplast. Moreover, the net photosynthetic rate (Pn), maximum photochemical efficiency of photosystem II (PSII) (Fv/Fm), actual photochemical efficiency of PSII (PhiPSII) and the activities of glyceraldehyde-3 phosphate dehydrogenase (GAPDH) and stromal fructose-1, 6-bisphosphatase (sFBPase) were higher in the sense lines than those in the antisense lines. Hence, the inhibition of photosynthetic capacity was less severe in the sense lines but more severe in the antisense lines compared with that in wild-type (WT) plants. Taken together, overexpression of SlCOR413IM1 enhanced the chilling stress tolerance, whereas suppression of this gene increased the chilling sensitivity of tomato plants. PMID- 29331924 TI - Gene expression patterns regulating the seed metabolism in relation to deterioration/ageing of primed mung bean (Vigna radiata L.) seeds. AB - We are proposing mechanisms to account for the loss of viability (seed deterioration/ageing) and enhancement in seed quality (post-storage priming treatment). In order to understand the regulatory mechanism of these traits, we conducted controlled deterioration (CD) test for up to 8 d using primed mung bean seeds and examined how CD effects the expression of many genes, regulating the seed metabolism in relation to CD and priming. Germination declined progressively with increased duration of CD, and the priming treatment completely/partially reversed the inhibition depending on the duration of CD. The loss of germination capacity by CD was accompanied by a reduction in total RNA content and RNA integrity, indicating that RNA quantity and quality impacts seed longevity. Expression analysis revealed that biosynthesis genes of GA, ethylene, ABA and ROS scavenging enzymes were differentially affected in response to duration of CD and priming, suggesting coordinately regulated mechanisms for controlling the germination capacity of seeds by modifying the permeability characteristics of biological membranes and activities of different enzymes. ABA genes were highly expressed when germination was delayed and inhibited by CD. Whereas, GA and ethylene genes were more highly expressed when germination was enhanced and permitted by priming under similar conditions. GSTI, a well characterized enzyme family involved in stress tolerance, was expressed in primed seeds over the period of CD, suggesting an additional protection against deterioration. The results are discussed in light of understanding the mechanisms underlying longevity/priming which are important issues economically and ecologically. PMID- 29331925 TI - Overexpression of Chrysanthemum lavandulifolium ClCBF1 in Chrysanthemum morifolium 'White Snow' improves the level of salinity and drought tolerance. AB - This paper reports the first study on plant CBF transcription factors (TF) in salt and drought stress responses in Chrysanthemum lavandulifolium. A CBF homolog gene, named as ClCBF1, from C. lavandulifolium was isolated using rapid amplification of cDNA ends (RACE). The deduced peptide is comprised of 210 amino acids (AA) containing an AP2 structural domain characteristic of the AP2 gene family. Quantitative real-time PCR revealed that ClCBF1 gene exhibit differential expression patterns across root, leaf and stem tissues, and it was strongly induced under salt and drought treatments of C. lavandulifolium. Overexpression of ClCBF1 in C. morifolium 'White Snow' resulted in stronger tolerance to salt and drought stresses. The ClCBF1 expression level, enzymatic activities of superoxide dismutase and peroxidase, and contents of proline and soluble proteins were enhanced in these transgenic lines, they were repressed in the antisense transgenic lines under the same stress conditions. Results indicate that ClCBF1 represents a promising candidate gene in improving abiotic stress tolerance among ornamental plants. PMID- 29331926 TI - Two hump-shaped angular distributions of neutrons and soft X-rays in a small plasma focus device. AB - Angular distributions of soft X-rays (SXRs) and neutrons emitted by a small plasma focus device (PFD) were investigated simultaneously using TLD-100 dosimeters and Geiger-Muller activation counters, respectively. The distributions represented two humps with a small dip at the angular position 0 degrees and reduced from the angles of +/- 15 degrees and +/- 30 degrees for the neutrons and SXRs, respectively. The maximum yield of 2.98 * 108 neutrons per shot of the device was obtained at 13.5kV and 6.5mbar. A time of flight (TOF) of 75.2ns between the hard X-ray and the neutron peaks corresponds to neutrons with energy of 2.67MeV. A similar behavior was observed between the angular distributions of neutron and soft X-ray emissions. PMID- 29331927 TI - Honeycomb-like polysulphone/polyurethane nanofiber filter for the removal of organic/inorganic species from air streams. AB - Nanofiber nonwoven filters, especially those prepared by electrospinning, are of particular interest because of their high filtration efficiency. However, existing electrospun filters suffer from inherent limitations in that both strengths and filtration resistances of the filters leave much to be desired. Herein, we present a novel nonwoven filter that is composed of polysulphone and polyurethane nanofibers. By mimicking the honeycomb structure, a heterogeneous distribution of both fiber diameter and fiber density has been achieved. Compared with nanofiber nonwovens with plain architectures, the honeycomb-like nonwovens possess higher filtration efficiency (~99.939%), better mechanical strength (~105.24 N g-1) and improved quality factor (~0.04 Pa-1). The filtration efficiency against both inorganic and organic aerosols is guaranteed through the nanofiber surface geometry and the intrinsic charge-retention capacity of polysulphone. Since the production of this nanofiber filter does not need multistep procedures and can be easily scaled up on a needleless electrospinning device, we anticipate that the strategy of endowing nanofibers with honeycomb texture and charge-retention capacity may lead to the development of advanced fiber filters. PMID- 29331928 TI - Being in control? A thematic content analysis of 14 in-depth interviews with 2,4 dinitrophenol users. AB - BACKGROUND: 2,4-Dinitrophenol (2,4-DNP) is a compound with multiple industrial purposes. Currently unlicensed for human consumption, it is used by the gym-going population for drastic, short-term body fat loss. Nonetheless, physiological mechanisms can lead to potentially fatal hyperthermia. Reported fatal incidents have caused concern and highlighted the need for intervention. Understanding decision-making leading to 2,4-DNP use alongside the perceived outgroup attitudes is vital to forming effective harm minimisation policies targeting current and potential users. First-hand accounts from this elusive population are scarce. METHODS: Fourteen novel and experienced users (13 male, 1 female) were recruited via "snowballing" techniques. Semi-structured interviews were conducted, comprising 28 questions. Thematic content analysis was conducted using 37 codes. RESULTS: Four characteristic themes emerged: 1. Users considered the Internet to be a crucial multifunctional resource directly impacting their 2,4-DNP use. 2. Users "respected" 2,4-DNP, proactively taking harm reduction measures. 3. Attitudinal polarisation towards 2,4-DNP within the gym-going community was consistent in all accounts. 4. Users perceived outgroup populations to have inherently negative attitudes towards their use. These themes fell under the all encompassing theme of "being in control". CONCLUSION: For the first time, this study offers a rich detail of attitudes toward 2,4-DNP use by giving a collective voice to users. The element of control over every aspect of the users' life appears to be a significant contributor to the successful risk-management of 2,4 DNP use. In the absence of an established safe upper limit and effective regulatory control, education is critical to harm minimisation. PMID- 29331929 TI - Sex-related differential response to dexamethasone in endocrine and immune measures in depressed in-patients and healthy controls. AB - Although sex differences in major depression have been reported repeatedly, the underlying mechanisms are still disputed. The rapidly changing gonadal steroid concentrations of the postpartum period or during menopause have been shown to be associated with depressive symptoms and to modulate the hypothalamic-pituitary adrenal (HPA)-axis, which is implicated in depression. The sample comprised of 128 depressed in-patients (36.7% women) and 166 healthy controls (30.0% women). Blood was collected at baseline (at 6pm) and then 3 h as well as 21 h after ingestion of 1.5 mg dexamethasone for measurement of cortisol, ACTH and blood count. To further assess the function of the HPA-axis the dexamethasone/corticotrophin releasing hormone (Dex-CRH) test was performed in a subsample of 115 patients and 116 controls the following day. A significant interaction effect between sex, disease and ACTH concentrations over time after dexamethasone stimulation was observed, with men showing increased ACTH concentrations at baseline and after 21 h, while there was no difference after 3 h (p = .007). After separating for disease status this significant interaction effect was only observed in controls (p = .005). The cortisol response in the dex CRH test was enhanced in female compared to male controls (p = .002). Leucocytes showed a stronger increase upon dexamethasone administration only in female compared to male controls (p = .023). These findings suggest a higher glucocorticoid receptor sensitivity following in-vivo glucocorticoid stimulation in healthy women that was absent in depressed patients. The sex-related differences in HPA-axis regulation and immune system function may contribute to the vulnerability of female sex to the development of depression. PMID- 29331930 TI - Sleep quality, psychological symptoms, and psychotic-like experiences. AB - Poor sleep quality has been repeatedly linked to the entire psychosis continuum, including psychotic-like experiences (PLEs); however, sleep dysfunction is a component of several other psychopathologies that have also been linked to increased risk for PLEs, including depression, anxiety, and post-traumatic stress disorder (PTSD). It has yet to be examined if PLEs are a significant risk factor for poor sleep quality or if this sleep dysfunction is better accounted for by comorbid psychopathology. In 2687 undergraduates, PLEs were evaluated using the positive items of the Prodromal Questionnaire. Symptoms of anxiety, depression, and PTSD were also assessed, as was sleep quality. Mediation analysis using PROCESS was conducted to determine if poor sleep quality associated with PLEs was in fact more associated with symptoms of other psychopathologies. Symptoms of depression and PTSD mediated the relationship between PLEs and sleep quality, though anxiety symptoms did not. These findings suggest that treating symptoms of depression and PTSD may improve multiple domains of psychotic illness. PMID- 29331931 TI - Resting-state fMRI signals in offspring of parents with bipolar disorder at the high-risk and ultra-high-risk stages and their relations with cognitive function. AB - BACKGROUND: Bipolar disorder (BD) has been associated with dysfunctional resting state brain functioning. However, it is still not known whether the aberrant functioning occurs and predict cognitive functioning before illness onset. AIMS: We examined the resting-state regional and network dysfunctioning, and their correlates with neurocognitive performance, in the high-risk (HR) and ultra-high risk (UHR) stages of bipolar disorder. METHODS: Using amplitude of low-frequency fluctuations (ALFF), region homogeneity (ReHo) and hypothesis-driven region-of interest (ROI)-based connectivity, we examined resting-state fMRI data of 8- to 25-year-old healthy offspring (HR, n = 28) and offspring with subthreshold syndromes (UHR, n = 22) of a BD parent, and age-matched healthy controls without any personal or family psychopathology (HC, n = 46). Participants' neurocognitive profiles were assessed using the MATRICS Consensus Cognitive Battery (MCCB). RESULTS: ALFF signals in the left putamen and right rolandic operculum were lower in the HR group compared to the HC group. In contrast, ALFF signals were increased in the UHR group in the right middle pars orbitalis of the inferior frontal gyrus, right calcarine sulcus and right cerebellum. Connectivities between the right amygdala and left inferior temporal gyrus, between the left hippocampus and inferior occipital gyrus, and between the left hippocampus and middle pars orbitalis gyrus were decreased in the HR group compared to the HC group. In UHR versus HC group, connectivity between the right amygdala and the left hippocampus and left insula was increased, and connectivity between the left hippocampus and the left insula and the cerebellum was also increased. Among cognitive measures, processing speed was positively correlated with ALFF signals in the left putamen in the HR offspring. In the UHR offspring, processing speed, attention, and verbal learning/memory were positively correlated with the functional connectivity between the left hippocampus and cerebellum. CONCLUSIONS: Offspring of parents with BD in the HR and UHR stages show largely non overlapping patterns of atypical resting-state signals and functional connectivity that predicted cognitive functioning, possibly reflecting inherited abnormalities and/or complimentary reactions. PMID- 29331932 TI - CNV biology in neurodevelopmental disorders. AB - Copy number variants (CNVs), characterized in recent years by cutting-edge technology, add complexity to our knowledge of the human genome. CNVs contribute not only to human diversity but also to different kinds of diseases including neurodevelopmental delay, autism spectrum disorder and neuropsychiatric diseases. Interestingly, many pathogenic CNVs are shared among these diseases. Studies suggest that pathophysiology of disease may not be simply attributed to a single driver gene within a CNV but also that multifactorial effects may be important. Gene expression and the resulting phenotypes may also be affected by epigenetic alteration and chromosomal structural changes. Combined with human genetics and systems biology, integrative research by multi-dimensional approaches using animal and cell models of CNVs are expected to further understanding of pathophysiological mechanisms of neurodevelopmental disorders and neuropsychiatric disorders. PMID- 29331933 TI - Combined effects of Ag and UiO-66 for removal of elemental mercury from flue gas. AB - The zirconium metal-organic framework material UiO-66 was doped with Ag nanoparticles and investigated for the removal of elemental mercury (Hg0) in flue gas. Physical and chemical characterization of the adsorbents showed that adding Ag did not change the crystal structure and morphology of the UiO-66. Ag doping can improve the redox activity of UiO-66, and the adsorbent exhibited high thermal stability and surface area. Hg0 removal experiments indicated that UiO-66 exhibited the higher performance compared with P25 and activated carbon, and the addition of Ag exhibited a significant synergistic effect with the UiO-66, which had highest Hg0 adsorption capacity (3.7 mg/g) at 50 degrees C. Furthermore, the Hg0 removal mechanism was investigated, revealing that Hg0 is removed by the formation of an Ag amalgam and channel adsorption at low temperature, and through Ag-activated oxygen oxidation and channel capture at high temperature. PMID- 29331934 TI - Characterization and release profile of (Mn, Al)-bearing deposits in drinking water distribution systems. AB - Inorganic contaminants accumulation in drinking water distribution systems (DWDS) is a great threat to water quality and safety. This work assessed the main risk factors for different water pipes and discovered the release profile of accumulated materials in a full scale distribution system frequently suffered from water discoloration problem. Physicochemical characterization of pipe deposits were performed using X-ray fluorescence, scanning electron microscopy, X ray diffraction, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. The metal release profile was obtained through continuous monitoring of a full-scale DWDS area. The results showed that aluminum and manganese were the main metals of deposits in nonmetallic pipes, while iron was dominant in iron-based pipe corrosion scales. Manganese primarily existed as MnO2 without well crystalline form. The relative abundance of Mn and Fe in deposits changed with their distance from the water treatment plant. Compared with iron in corrosion scales, Mn and Al were more labile to be released back into bulk water during unidirectional flushing process. A main finding of this work is the co release behavior of Mn and Al in particulate form and significant correlation exists between these two metals. Dual control of manganese and aluminum in treated water is proposed to be essential to cope with discoloration and trace metal contamination in DWDS. PMID- 29331936 TI - Influence of custom foot orthoses on venous status: A quasi-experimental study. AB - BACKGROUND: Customized foot orthoses (CFO) have been widely accepted to reduce the frequency of foot problems and postural disorders. The purpose of the research was to compare the influence of CFO utilization on the venous status among healthy females and males. METHODS: This was a quasi-experimental study (NCT03329430), which included 20 healthy subjects that completed all the stages of the process. The subjects showed an age mean of 20.00 +/- 1.62 years and were recruited in a foot and ankle specialist center. Self-reported data were medical records and venous function which were evaluated by plethysmography with or without utilization of CFO. RESULTS: A sample of 40 feet was studied, showing statistically significant differences between venous filling time (P < 0.001) and in the ejection fraction (P < 0.001) with CFO utilization versus without use of CFO. CONCLUSIONS: Healthy people who utilize CFO evidenced an increased venous return in the feet. PMID- 29331935 TI - Disruption of thyroid hormone sulfotransferase activity by brominated flame retardant chemicals in the human choriocarcinoma placenta cell line, BeWo. AB - Brominated flame retardants (BFRs) have been shown to disrupt thyroid hormone (TH) homeostasis through multiple mechanisms, including inhibition of enzymes that regulate intracellular levels of THs, such as sulfotransferases (SULTs). The placenta plays a critical role in helping to maintain TH levels during fetal development and expresses SULTs. This is concerning given that disruption of TH regulation within the placenta could potentially harm the developing fetus. In this study, we investigated the effects of two polybrominated diphenyl ethers (PBDEs), two hydroxylated PBDEs, and 2,4,6-tribromophenol (2,4,6-TBP) on TH SULT activity in a choriocarcinoma placenta cell line (BeWo). BeWo cells were exposed to BFR concentrations up to 1 MUM for 1-24 h to investigate changes in basal SULT activity and in mRNA expression of several TH regulating genes. 2,4,6-TBP was the most potent inhibitor of basal 3,3'-T2 SULT activity at all exposure durations, decreasing activity by as much as 86% after 24 h of exposure. BDE-99, 3-OH BDE 47, and 6-OH BDE-47 also decreased 3,3'-T2 SULT activity by 23-42% at concentrations of 0.5 MUM and 1.0 MUM following 24 h exposures. BDE-47 had no effect on SULT activity, and there was no observed effect of any BFR exposure on expression of SULT1A1, or thyroid nuclear receptors alpha or beta. This research demonstrates that total TH SULT activity in placental cells are sensitive to BFR exposure; however, the mechanisms and consequences have yet to be fully elucidated. PMID- 29331937 TI - Quasi-static tensile properties of the Cranial Cruciate Ligament (CrCL) in adult cattle: towards the design of a prosthetic CrCL. AB - Mechanical properties of the Cranial Cruciate Ligament (CrCL) in adult cattle are not well documented and protocols used in the literature focus on testing a full femur-CrCL-tibia complex rather than an isolated CrCL. The aim of this study was to assess a wider range of tensile properties of the CrCL along its anatomic axis with experimental measurements of the global elongation, displacement and strain fields, in order to provide guidelines for the design of CrCL prosthetic surrogates. Fourteen bovine CrCL were harvested from seven mature cows (5.1 +/- 1.3 years) weighing 631 +/- 90kg. The mean CrCL length was 41.4 +/- 1.5mm and its mean cross-section was 103.9 +/- 23.8mm2. Pre-conditioning was achieved with 30 cycles of loading from 30 to 200N at a strain rate of 0.02s-1. Specimens were then loaded to failure at the same strain rate. The following results were obtained: the mean ultimate tensile load (UTL) 4372 +/- 1485N and the median [quartiles] maximal global elongation 19.3 [17.8; 21.4] %. At first physical signs of tearing, the mean load was 3315 +/- 1336N and mean elongation 13.5 +/- 4.9%. The mean absorbed energy at failure was 5.23 +/- 2.08 MJ.mm-3 and the mean stiffness at various levels of elongation was: 220 +/- 195N.%-1 (5%), 285 +/- 162N.%-1 (10%), 239 +/- 200N.%-1 (15%), 146 +/- 59N.%-1 (20%), 153 +/- 136N.%-1 (25%). None of these properties were related to the bovine weight, age and side of the body (p > 0.05). An ideal prosthetic surrogate should then follow these sets of properties and the experimental data suggest that the in-vivo maximal elongation is below 13.5%. PMID- 29331938 TI - Generation of a human induced pluripotent stem cell line (CSC-40) from a Parkinson's disease patient with a PINK1 p.Q456X mutation. AB - Parkinson's disease (PD) is a neurodegenerative disease with unknown etiology. Here we show the generation of an induced pluripotent stem cell (iPSC) line, named CSC-40, from dermal fibroblasts obtained from a 59-year-old male patient with a homozygous p.Q456X mutation in the PTEN-induced putative kinase 1 (PINK/PARK6) gene and a confirmed diagnosis of PD, which could be used to model familial PD. A non-integrating Sendai virus-based delivery of the reprogramming factors OCT3/4, SOX2, c-MYC and KLF4 was employed. The CSC-40 cell line showed normal karyotyping and fingerprinting following transduction as well as sustained expression of several pluripotency markers and the ability to differentiate into all three germ layers. PMID- 29331939 TI - Volumetric muscle loss injury repair using in situ fibrin gel cast seeded with muscle-derived stem cells (MDSCs). AB - Volumetric muscle defect, caused by trauma or combat injuries, is a major health concern leading to severe morbidity. It is characterized by partial or full thickness loss of muscle and its bio-scaffold, resulting in extensive fibrosis and scar formation. Therefore, the ideal therapeutic option is to use stem cells combined with bio-scaffolds to restore muscle. For this purpose, muscle-derived stem cells (MDSCs) are a great candidate due to their unique multi-lineage differentiation potential. In this study, we evaluated the regeneration potential of MDSCs for muscle loss repair using a novel in situ fibrin gel casting. Muscle defect was created by a partial thickness wedge resection in the tibialis anterior (TA) muscles of NSG mice which created an average of 25% mass loss. If untreated, this defect leads to severe muscle fibrosis. Next, MDSCs were delivered using a novel in situ fibrin gel casting method. Our results demonstrated MDSCs are able to engraft and form new myofibers in the defect when casted along with fibrin gel. LacZ labeled MDSCs were able to differentiate efficiently into new myofibers and significantly increase muscle mass. This was also accompanied by significant reduction of fibrotic tissue in the engrafted muscles. Furthermore, transplanted cells also contributed to new vessel formation and satellite cell seeding. These results confirmed the therapeutic potential of MDSCs and feasibility of direct in situ casting of fibrin/MDSC mixture to repair muscle mass defects. PMID- 29331940 TI - Screening and functional exploration of prothrombin Arg596 related mutations in Chinese venous thromboembolism patients. AB - AIMS: Dysfunctional prothrombin residue Arg596 associated mutation has been found to precipitate venous thromboembolism (VTE). In the current study we investigated the prevalence of Arg596 associated mutations in Chinese patients with VTE and explored the functional impact of Arg596Gln mutation on coagulation function in affected patients. METHODS: Prothrombin clotting activity was measured in 267 unrelated patients with unprovoked VTE. Patients with moderately decreased activities underwent further analysis of the F2 gene. Prothrombin amidolytic activity and antigen levels were detected in mutation carriers. Specific family members were investigated about their VTE histories and clinical phenotypes. The thrombin generation test (TGT) was used to evaluate thrombin function and antithrombin resistance assay was applied to assess the extent of impaired antithrombin inhibition of mutation carriers. RESULTS: Two heterozygous mutation carriers of prothrombin Arg596Gln were identified, both of whom had moderately decreased clotting activities but normal amidolytic activities and antigen levels. Among the families of the two probands, nine out of 13 mutation carriers experienced episodes of VTE. TGTs showed that patients had elevated endogenous thrombin potential and prolonged start tail time. Thrombin generation could be inhibited in the presence of thrombomodulin. The thrombin Arg596Gln variant in patients' plasma presented strong resistance to antithrombin inhibition. CONCLUSION: Prothrombin Arg596Gln mutation is a risk factor for Chinese patients with VTE due to its moderately decreased clotting activity but strong resistance to antithrombin inhibition. Prothrombin clotting activity screening and its encoding gene sequencing should be considered in patients with VTE when other established risk factors are absent. PMID- 29331941 TI - Early changes in the pharmacokinetic profile of vedolizumab-treated patients with IBD may predict response after dose optimisation. PMID- 29331942 TI - Sucrase-isomaltase 15Phe IBS risk variant in relation to dietary carbohydrates and faecal microbiota composition. PMID- 29331943 TI - Modern management of perianal fistulas in Crohn's disease: future directions. AB - Perianal fistulae in patients with Crohn's disease (CD) can be associated with significant morbidity resulting in negative impact on quality of life. The last two decades have seen significant advancements in the management of perianal fistulas in CD, which has evolved into a multidisciplinary approach that includes gastroenterologists, colorectal surgeons, endoscopists and radiologists. Despite the introduction of new medical therapies such as antitumour necrosis factor and novel models of care delivery, the best fistula healing rates reported with combined medical and surgical approaches are approximately 50%. More recently, newer biologics, cell-based therapies as well as novel endoscopic and surgical techniques have been introduced raising new hopes that outcomes can be improved upon. In this review, we describe the modern management and the most recent advances in the management of complex perianal fistulising CD, which will likely impact clinical practice. We will explore optimal use of both older and newer biological agents, as well as new data on cell-based therapies. In addition, new techniques in endoscopic and surgical approaches will be discussed. PMID- 29331945 TI - Risk factors for gastric cancer: is it time to discard PPIs? PMID- 29331944 TI - Liver sampling: a vital window into HBV pathogenesis on the path to functional cure. AB - In order to optimally refine the multiple emerging drug targets for hepatitis B virus (HBV), it is vital to evaluate virological and immunological changes at the site of infection. Traditionally liver biopsy has been the mainstay of HBV disease assessment, but with the emergence of non-invasive markers of liver fibrosis, there has been a move away from tissue sampling. Here we argue that liver biopsy remains an important tool, not only for the clinical assessment of HBV but also for research progress and evaluation of novel agents. The importance of liver sampling has been underscored by recent findings of specialised subsets of tissue-resident immune subsets capable of efficient pathogen surveillance, compartmentalised in the liver and not sampled in the blood. Importantly, the assessment of virological parameters, such as cccDNA quantitation, also requires access to liver tissue. We discuss strategies to maximise information obtained from the site of infection and disease pathology. Fine needle aspirates of the liver may allow longitudinal sampling of the local virus/host landscape. The careful utilisation of liver tissue and aspirates in conjunction with blood will provide critical information in the assessment of new therapeutics for the functional cure of HBV. PMID- 29331947 TI - Response to: 'Prognosis of immune-tolerant phase chronic hepatitis B' by Chu and Liaw. PMID- 29331948 TI - LVIS Blue as a low porosity stent and coil adjuvant. AB - INTRODUCTION: The LVIS Blue is an FDA-approved stent with 28% metallic coverage that is indicated for use in conjunction with coil embolization for the treatment of intracranial aneurysms. Given a porosity similar to approved flow diverters and higher than currently available intracranial stents, we sought to evaluate the effectiveness of this device for the treatment of intracranial aneurysms. METHODS: We performed an observational single-center study to evaluate initial occlusion and occlusion at 6-month follow-up for patients treated with the LVIS Blue in conjunction with coil embolization at our institution using the modified Raymond-Roy classification (mRRC), where mRRC 1 indicates complete embolization, mRRC 2 persistent opacification of the aneurysm neck, mRRC 3a filling of the aneurysm dome within coil interstices, and mRRC 3b filling of the aneurysm dome. RESULTS: Sixteen aneurysms were treated with the LVIS Blue device in conjunction with coil embolization with 6-month angiographic follow-up. Aneurysms were treated throughout the intracranial circulation: five proximal internal carotid artery (ICA) (ophthalmic or communicating segments), two superior cerebellar artery, two ICA terminus, two anterior communicating artery, two distal middle cerebral artery, one posterior inferior cerebellar artery, and two basilar tip aneurysms. Post-procedurally, there was one mRRC 1 closure, five mRRC 2 closures, and 10 mRRC 3a or 3b occlusion. At follow-up, all the mRRC 1 and mRRC 3a closures, 85% of the mRRC 3b closures and 75% of the mRRC 2 closures were stable or improved to an mRRC 1 or 2 at follow-up. CONCLUSIONS: The LVIS Blue represents a safe option as a coil adjunct for endovascular embolization within both the proximal and distal anterior and posterior circulation. PMID- 29331946 TI - Management of patients on antithrombotic agents undergoing emergency and elective endoscopy: joint Asian Pacific Association of Gastroenterology (APAGE) and Asian Pacific Society for Digestive Endoscopy (APSDE) practice guidelines. AB - This Guideline is a joint official statement of the Asian Pacific Association of Gastroenterology (APAGE) and the Asian Pacific Society for Digestive Endoscopy (APSDE). It was developed in response to the increasing use of antithrombotic agents (antiplatelet agents and anticoagulants) in patients undergoing gastrointestinal (GI) endoscopy in Asia. After reviewing current practice guidelines in Europe and the USA, the joint committee identified unmet needs, noticed inconsistencies, raised doubts about certain recommendations and recognised significant discrepancies in clinical practice between different regions. We developed this joint official statement based on a systematic review of the literature, critical appraisal of existing guidelines and expert consensus using a two-stage modified Delphi process. This joint APAGE-APSDE Practice Guideline is intended to be an educational tool that assists clinicians in improving care for patients on antithrombotics who require emergency or elective GI endoscopy in the Asian Pacific region. PMID- 29331950 TI - Construction of an evaluation index system for determining the academic impact of military medical scholars. AB - INTRODUCTION: Academic papers are an essential manner for describing new ideas and consolidating existing concepts in the field of military medicine. The academic impact of military medical publications reflects the extent and depth of recognition, acceptance and utilisation of the concepts transmitted in these publications. The aim of this research was to construct an evaluation index system suitable for evaluating the academic influence of scholars in the field of military medicine. METHODS: Using the Delphi consensus methodology, 30 experts from the field of military medicine, military medical information and library and information science were asked during three rounds of questioning to score the feasibility and importance of indicators that could be used to determine academic impact. An analytic hierarchy process method was used to calculate the relative weighting of each indicator in determining the final level of academic impact. RESULTS: Eight evaluation indicators were agreed on to potentially determine academic impact. These comprised: 'Web of Science documents', 'Citation impact', 'h-index', 'Percentage of international collaborations', 'Percentage of the top 10% of the cited frequency', 'Category normalised citation impact', 'Percentage of documents cited' and 'The number of F1000 Recommended papers'. CONCLUSIONS: The evaluation index system determined from this study combines the advantages of both qualitative and quantitative recognised evaluation indicators, which are subsequently weighted according to their importance in the field of military medicine. It is hoped that this framework will provide a manner in the future for comparing the potential academic impact of military medical scholars. PMID- 29331949 TI - Bibliometric analysis of military trauma publications: 2000-2016. AB - INTRODUCTION: Bibliometric tools can be used to identify the authors, topics and research institutions that have made the greatest impact in a field of medicine. The aim of this research was to analyse military trauma publications over the last 16 years of armed conflict in order to highlight the most important lessons that have translated into civilian practice and military doctrine as well as identify emerging areas of importance. METHODS: A systematic search of research published between January 2000 and December 2016 was conducted using the Thompson Reuters Web of Science database. Both primary evidence and review publications were included. Results were categorised according to relevance and topic and the 30 most cited publications were reviewed in full. The h-index, impact factors, citation counts and citation analysis were used to evaluate results. RESULTS: A plateau in the number of annual publications on military trauma was found, as was a shift away from publications on wound and mortality epidemiology to publications on traumatic brain injury (TBI), neurosurgery or blast injury to the head. Extensive collaboration networks exist between highly contributing authors and institutions, but less collaboration between authors from different countries. The USA produced the majority of recent publications, followed by the UK, Germany and Israel. CONCLUSIONS: In recent years, the number of publications on TBI, neurosurgery or blast injury to the head has increased. It is likely that the lessons of recent conflicts will continue to influence civilian medical practice, particularly regarding the long-term effects of blast-related TBI. PMID- 29331951 TI - SITA-Standard perimetry has better performance than FDT2 matrix perimetry for detecting glaucomatous progression. AB - PURPOSE: The Humphrey Matrix (FDT2) may be more sensitive in detecting glaucomatous visual field loss than SITA standard automated perimetry (SAP) performed on the Humphrey Field Analyzer (HFA). Therefore, FDT may be a good candidate to determine disease progression in patients with glaucoma. Our aim was to test the hypothesis that automated perimetry using the FDT2 would be equal to, or more effective than, HFA SITA-Standard, in identifying glaucomatous progression. METHODS: One hundred and twenty patients with glaucoma were tested twice at baseline and every 6 months for 4 years with HFA SITA-Standard and FDT2. FDT2 values were standardised to HFA SAP values. We used pointwise linear regression (PLR) over the full data series to identify glaucomatous progression and generated an array of results using three different criteria: (1) three or more clustered test locations progressing, (2) three or more non-clustered test locations progressing and (3) total number of progressing test locations. We compared HFA SAP and FDT2 for the number of locations signalled by the PLR detection algorithm. RESULTS: Regardless of the criteria, HFA SAP with SITA Standard testing detected visual field progression at a higher rate than the FDT2 overall (P<0.001). CONCLUSION: HFA SAP identifies glaucomatous visual field progression at a rate at least as high if not higher than FDT2. PMID- 29331952 TI - Inter-relationship between ocular perfusion pressure, blood pressure, intraocular pressure profiles and primary open-angle glaucoma: the Singapore Epidemiology of Eye Diseases study. AB - OBJECTIVE: To elucidate the inter-relationship between ocular perfusion pressure (OPP), blood pressure (BP), intraocular pressure (IOP) profiles and primary open angle glaucoma (POAG) in a multiethnic Asian population. METHODS: Participants were recruited from the Singapore Epidemiology of Eye Diseases Study and underwent standardised ocular and systemic examinations. POAG was defined according to the International Society for Geographical and Epidemiological Ophthalmology criteria. Logistic regression analyses with generalised estimating equation models were performed and used to account for correlation between eyes. RESULTS: A total of 9877 participants (19 587 eyes), including 213 POAG cases (293 eyes) were included. Eyes with lowest quartile levels of systolic OPP (SOPP <110 mm Hg) were 1.85 times (95% CI 1.16 to 2.95) likely to have POAG, compared with eyes with mid-range SOPP levels (123-137 mm Hg; third quartile), after adjusting for relevant covariates and IOP. Consistently, we found that lowest quartile of systolic BP (SBP <124 mm Hg) was 1.69 times (95% CI 1.08 to 2.66) likely to have POAG, compared with mid-range SBP levels (138-153 mm Hg; third quartile). Furthermore, the effect of lower SBP on POAG was more pronounced in eyes with IOP >=21 mm Hg (OR 3.90; 95% CI 1.24 to 12.30). Both the mean and diastolic profiles of OPP and BP were not significantly associated with POAG, after adjusting for relevant covariates and IOP. CONCLUSIONS: In this population based sample of nearly 10 000 Asian individuals, we showed that low SOPP was associated with POAG. This association was potentially in part secondary to low SBP and high IOP. Our findings provide further clarity on the roles of OPP surrogates and BP profiles in POAG. PMID- 29331953 TI - Efficacy, tolerability and acceptability of oxycodone for cancer-related pain in adults: an updated Cochrane systematic review. AB - OBJECTIVES: To assess the efficacy, tolerability and acceptability of oxycodone for cancer pain in adults METHODS: We searched CENTRAL, MEDLINE, MEDLINE In Process, Embase, SCI, Conference Proceedings Citation Index-Science, BIOSIS, PsycINFO and four trials registries to November 2016. RESULTS: We included 23 randomised controlled trials with 2144 patients analysed for efficacy and 2363 for safety. Meta-analyses showed no significant differences between controlled release (CR) and immediate-release oxycodone in pain intensity or adverse events but did show significantly better pain relief after treatment with CR morphine compared with CR oxycodone. However, sensitivity analysis did not corroborate this result. Meta-analyses of the adverse events showed a significantly lower risk of hallucinations after treatment with CR oxycodone compared with CR morphine, but no other differences. The remaining studies either compared oxycodone in various formulations or compared oxycodone to different alternative opioids. None found any clear superiority or inferiority of oxycodone in pain relief or adverse events. The quality of this evidence base was limited by the high/unclear risk of bias of the studies and the low event rates for many outcomes. CONCLUSIONS: Oxycodone offers similar levels of pain relief and adverse events to other strong opioids. However, hallucinations occurred less with CR oxycodone than with CR morphine, but the quality of this evidence was very low, so this finding should be treated with utmost caution. Our conclusions are consistent with other reviews and suggest that oxycodone can be used first line as an alternative to morphine. However, because it is cheaper, morphine generally remains the first-line opioid of choice. PMID- 29331954 TI - Dynamics of dignity and safety: a discussion. PMID- 29331955 TI - Low-value care: an intractable global problem with no quick fix. PMID- 29331957 TI - Mitral Valve Anatomic Predictors of Hemodynamic Success With Transcatheter Mitral Valve Repair. AB - BACKGROUND: Mitral regurgitation is a heterogeneous disease. Determining which patients derive optimal outcomes from transcatheter edge-to-edge mitral valve repair (TMVR) remains challenging. We sought to determine whether baseline mitral valve anatomic characteristics are predictive of left atrial pressure (LAP) changes during TMVR with MitraClip. METHODS AND RESULTS: Consecutive patients with severe mitral regurgitation undergoing TMVR (n=112) underwent continuous intraprocedural LAP monitoring and retrospective echocardiographic analysis for specific mitral anatomic characteristics. Procedural success (optimal LAP reduction) was defined as >=40% reduction in left atrial V-wave pressure compared with baseline. Echocardiographic predictors of optimal LAP reduction and increased postprocedure mean diastolic gradient were evaluated. Mean age was 79+/ 14 years, and 36 patients (32%) were women. Primary, mixed, and secondary mitral regurgitation were present in 78 patients (70%), 22 patients (20%), and 12 patients (10%), respectively. Baseline mean LAP and V-wave were 22+/-6 and 38+/ 13 mm Hg; after TMVR, these decreased to 19+/-5 and 27+/-10 mm Hg, respectively (P<0.0001 for both). Independent predictors of optimal LAP reduction were the presence of a flail scallop, mitral regurgitation localized to a single scallop, and high-quality 3-dimensional echocardiographic imaging. Independent predictors of elevated postprocedure mean diastolic gradient were elevated preprocedure mean diastolic gradient, mitral annular calcification, and implantation of multiple clips. CONCLUSIONS: Mitral valve pathoanatomic features, including a flail leaflet and single jet, are predictive of optimal LAP reduction with TMVR. High quality 3-dimensional imaging may help select patients with the highest likelihood of optimal hemodynamic results with TMVR. These data expand current knowledge about patient selection for TMVR and deserve further study in larger cohorts. PMID- 29331956 TI - Adenosine Production by Biomaterial-Supported Mesenchymal Stromal Cells Reduces the Innate Inflammatory Response in Myocardial Ischemia/Reperfusion Injury. AB - BACKGROUND: During myocardial ischemia/reperfusion (MI/R) injury, there is extensive release of immunogenic metabolites that activate cells of the innate immune system. These include ATP and AMP, which upregulate chemotaxis, migration, and effector function of early infiltrating inflammatory cells. These cells subsequently drive further tissue devitalization. Mesenchymal stromal cells (MSCs) are a potential treatment modality for MI/R because of their powerful anti inflammatory capabilities; however, the manner in which they regulate the acute inflammatory milieu requires further elucidation. CD73, an ecto-5'-nucleotidase, may be critical in regulating inflammation by converting pro-inflammatory AMP to anti-inflammatory adenosine. We hypothesized that MSC-mediated conversion of AMP into adenosine reduces inflammation in early MI/R, favoring a micro-environment that attenuates excessive innate immune cell activation and facilitates earlier cardiac recovery. METHODS AND RESULTS: Adult rats were subjected to 30 minutes of MI/R injury. MSCs were encapsulated within a hydrogel vehicle and implanted onto the myocardium. A subset of MSCs were pretreated with the CD73 inhibitor, alpha,beta-methylene adenosine diphosphate, before implantation. Using liquid chromatography/mass spectrometry, we found that MSCs increase myocardial adenosine availability following injury via CD73 activity. MSCs also reduce innate immune cell infiltration as measured by flow cytometry, and hydrogen peroxide formation as measured by Amplex Red assay. These effects were dependent on MSC-mediated CD73 activity. Finally, through echocardiography we found that CD73 activity on MSCs was critical to optimal protection of cardiac function following MI/R injury. CONCLUSIONS: MSC-mediated conversion of AMP to adenosine by CD73 exerts a powerful anti-inflammatory effect critical for cardiac recovery following MI/R injury. PMID- 29331958 TI - Platelet Secretion Defects and Acquired von Willebrand Syndrome in Patients With Ventricular Assist Devices. AB - BACKGROUND: The number of implanted ventricular assist devices (VADs) has increased significantly recently. Bleeding, the most frequent complication, cannot be solely attributed to anticoagulation therapy. Acquired von Willebrand syndrome (AVWS) caused by increased shear stress is frequent in VAD patients and can increase the bleeding risk. The HeartMate III (HM III) is a novel left VAD featuring potential improvements over the HeartMate II. METHODS AND RESULTS: In this study, we investigated the prevalence and onset of AVWS in 198 VAD patients. To our knowledge, this is the largest cohort of VAD patients whose longitudinal data on AVWS have been collected. We also analyzed whether AVWS is less severe in HM III patients than in HeartMate II patients. Because platelet dysfunction can raise the bleeding risk, we investigated platelet function in a subset of patients. In total, 198 VAD patients and 60 patients with heart transplants as controls were included in this study. The ratio of von Willebrand factor collagen binding capacity to von Willebrand factor:antigen, multimer analyses, and platelet function (especially secretion of alpha- and delta-granules) were investigated. All 198 VAD patients developed AVWS. As soon as the VAD was explanted, the AVWS disappeared within hours. AVWS was less severe in the HM III patients than in the HeartMate II patients. The HM III patients had fewer bleeding symptoms. In addition, VAD patients exhibited a platelet alpha- and delta-granule secretion defect. CONCLUSIONS: AVWS develops in VAD patients and may increase the bleeding risk. The HM III device causes less severe AVWS. Platelet secretion defects should be investigated in VAD patients because they also raise the bleeding risk. CLINICAL TRIAL REGISTRATION: https://www.drks.de/drks_web. Unique identifier: DRKS00000649. PMID- 29331959 TI - Probenecid Improves Cardiac Function in Patients With Heart Failure With Reduced Ejection Fraction In Vivo and Cardiomyocyte Calcium Sensitivity In Vitro. AB - BACKGROUND: Transient receptor potential vanilloid 2 is a calcium channel activated by probenecid. Probenecid is a Food and Drug Administration-approved uricosuric drug that has recently been shown to induce positive lusitropic and inotropic effects in animal models through cardiomyocyte transient receptor potential vanilloid 2 activation. The aim of this study was to test the hypothesis that oral probenecid can improve cardiac function and symptomatology in patients with heart failure with reduced ejection fraction and to further elucidate its calcium-dependent effects on myocyte contractility. METHODS AND RESULTS: The clinical trial recruited stable outpatients with heart failure with reduced ejection fraction randomized in a single-center, double-blind, crossover design. Clinical data were collected including a dyspnea assessment, physical examination, ECG, echocardiogram to assess systolic and diastolic function, a 6 minute walk test, and laboratory studies. In vitro force generation studies were performed on cardiomyocytes isolated from murine tissue exposed to probenecid or control treatments. The clinical trial recruited 20 subjects (mean age 57 years, mean baseline fractional shortening of 13.6+/-1.0%). Probenecid therapy increased fractional shortening by 2.1+/-1.0% compared with placebo -1.7+/-1.0% (P=0.007). Additionally, probenecid improved diastolic function compared with placebo by decreasing the E/E' by -2.95+/-1.21 versus 1.32+/-1.21 in comparison to placebo (P=0.03). In vitro probenecid increased myofilament force generation (92.36 versus 80.82 mN/mm2, P<0.05) and calcium sensitivity (pCa 5.67 versus 5.60, P<0.01) compared with control. CONCLUSIONS: Probenecid improves cardiac function with minimal effects on symptomatology and no significant adverse effects after 1 week in patients with heart failure with reduced ejection fraction and increases force development and calcium sensitivity at the cardiomyocyte level. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT01814319. PMID- 29331960 TI - Pregnancy Loss and Carotid Intima-Media Thickness in Mexican Women. AB - BACKGROUND: Cardiovascular disease in women often develops without conventional risk factors. Prenatal loss is a common pregnancy outcome that may result in physiological changes can increase the potential future risk of cardiovascular disease. Insufficient information exists regarding the impact of pregnancy loss on early markers of cardiovascular disease risk. METHODS AND RESULTS: Cross sectional analysis of 1767 disease-free women from the MTC (Mexican Teachers' Cohort) who had been pregnant was used to evaluate the relationship between pregnancy loss and carotid intima-media thickness (IMT). Participants responded to a questionnaire regarding their reproductive history, risk factors, and medical conditions. We defined pregnancy loss as history of miscarriage and/or stillbirth. Trained neurologists measured IMT using ultrasound. We log transformed IMT and defined subclinical carotid atherosclerosis (SCA) as IMT >=0.8 mm and/or plaque. We used multivariable linear and logistic regression models to assess the relation of pregnancy loss, IMT, and SCA. The mean age of participants was 49.8+/-5.1 years. The prevalence of pregnancy loss was 22%, and we observed SCA in 23% of participants. Comparing participants who reported a pregnancy loss and those who did not, the multivariable-adjusted odds ratio for SCA was 1.52 (95% confidence interval, 1.12-2.06). Women who experienced a stillbirth had 2.32 higher odds (95% confidence interval, 1.03-5.21) of SCA than those who did not. Mean IMT appeared to be higher in women who reported a pregnancy loss relative to those who did not; nevertheless, this was not statistically significant. CONCLUSIONS: Pregnancy loss could be linked to cardiovascular disease later in life. The key findings of our study await confirmation and further investigation of the potential underlying mechanisms for this association is required. PMID- 29331961 TI - Combining Intravenous Thrombolysis and Antithrombotic Agents in Stroke: An Update. PMID- 29331963 TI - Response to: 'Standard dose of ustekinumab for childhood-onset deficiency of interleukin-36 receptor antagonist' by Cherqaoui et al. PMID- 29331962 TI - Splicing variant of WDFY4 augments MDA5 signalling and the risk of clinically amyopathic dermatomyositis. AB - OBJECTIVES: Idiopathic inflammatory myopathies (IIMs) are a heterogeneous group of rare autoimmune diseases in which both genetic and environmental factors play important roles. To identify genetic factors of IIM including polymyositis, dermatomyositis (DM) and clinically amyopathic DM (CADM), we performed the first genome-wide association study for IIM in an Asian population. METHODS: We genotyped and tested 496 819 single nucleotide polymorphism for association using 576 patients with IIM and 6270 control subjects. We also examined the causal mechanism of disease-associated variants by in silico analyses using publicly available data sets as well as by in in vitro analyses using reporter assays and apoptosis assays. RESULTS: We identified a variant in WDFY4 that was significantly associated with CADM (rs7919656; OR=3.87; P=1.5*10-8). This variant had a cis-splicing quantitative trait locus (QTL) effect for a truncated WDFY4isoform (tr-WDFY4), with higher expression in the risk allele. Transexpression QTL analysis of this variant showed a positive correlation with the expression of NF-kappaB associated genes. Furthermore, we demonstrated that both WDFY4 and tr-WDFY4 interacted with pattern recognition receptors such as TLR3, TLR4, TLR9 and MDA5 and augmented the NF-kappaB activation by these receptors. WDFY4 isoforms also enhanced MDA5-induced apoptosis to a greater extent in the tr-WDFY4-transfected cells. CONCLUSIONS: As CADM is characterised by the appearance of anti-MDA5 autoantibodies and severe lung inflammation, the WDFY4 variant may play a critical role in the pathogenesis of CADM. PMID- 29331964 TI - What are the characteristics of vitamin D metabolism in opioid dependence? An exploratory longitudinal study in Australian primary care. AB - OBJECTIVE: Compare vitamin D levels in opioid dependence and control population and adjust for relevant confounding effects. Nuclear hormone receptors (including the vitamin D receptor) have been shown to be key transducers and regulators of intracellular metabolism and comprise an important site of pathophysiological immune and metabolic dysregulation potentially contributing towards pro-ageing changes observed in opioid-dependent patients (ODPs). DESIGN: Longitudinal prospective comparing ODPs with general medical controls (GMCs). SETTING: Primary care. PARTICIPANTS: Prospective review comparing 1168 ODP (72.5% men) and 415 GMC (51.6% men, p<0.0001). Mean ages were 33.92+/-0.31 (mean+/-SEM) and 41.22+/-1.32 years, respectively (p<0.0001). Opioid use in the ODP has been previously reported and shown to be typical. INTERVENTIONS: Nil. Observational study only. PRIMARY AND SECONDARY OUTCOMES: Serum vitamin D levels and relevant biochemical parameters. RESULTS: Vitamin D levels were higher in the ODP (70.35+/-1.16 and 57.06+/-1.81 nmol/L, p<0.0001). The difference in ages between the two groups was handled in an age-matched case-control subanalysis and also by multiple regression. Sexes were analysed separately. The age:status (or age:time:status) was significant in case-control, cross-sectional and longitudinal analyses in both sexes (p<0.05). Modelled vitamin D was 62.71 vs 57.81 nmol/L in the two groups. Time-dependent mixed-effects models quadratic in age outperformed linear only models (p=0.0377). ODP vitamin D was shown to vary with age and to correlate with alanine aminotransferase establishing it as a biomarker of age in this group. Hepatitis C seronegativity was significant in regression models (from p=0.0015). CONCLUSION: Vitamin D was higher in ODP in both sexes in bivariate, cross-sectional, case-control and longitudinal analyses and was robust to the inclusion of metabolic and immune biomarkers. That Hepatitis C seronegativity was significant suggests opioid dependence has an effect beyond simply that of its associated hepatitides. This finding may relate to the accelerated ageing process previously described in opioid dependence. PMID- 29331965 TI - Right Iliac Fossa Pain Treatment (RIFT) Study: protocol for an international, multicentre, prospective observational study. AB - INTRODUCTION: Patients presenting with right iliac fossa (RIF) pain are a common challenge for acute general surgical services. Given the range of potential pathologies, RIF pain creates diagnostic uncertainty and there is subsequent variation in investigation and management. Appendicitis is a diagnosis which must be considered in all patients with RIF pain; however, over a fifth of patients undergoing appendicectomy, in the UK, have been proven to have a histologically normal appendix (negative appendicectomy). The primary aim of this study is to determine the contemporary negative appendicectomy rate. The study's secondary aims are to determine the rate of laparoscopy for appendicitis and to validate the Appendicitis Inflammatory Response (AIR) and Alvarado prediction scores. METHODS AND ANALYSIS: This multicentre, international prospective observational study will include all patients referred to surgical specialists with either RIF pain or suspected appendicitis. Consecutive patients presenting within 2-week long data collection periods will be included. Centres will be invited to participate in up to four data collection periods between February and August 2017. Data will be captured using a secure online data management system. A centre survey will profile local policy and service delivery for management of RIF pain. ETHICS AND DISSEMINATION: Research ethics are not required for this study in the UK, as determined using the National Research Ethics Service decision tool. This study will be registered as a clinical audit in participating UK centres. National leads in countries outside the UK will oversee appropriate registration and study approval, which may include completing full ethical review. The study will be disseminated by trainee-led research collaboratives and through social media. Peer-reviewed publications will be published under corporate authorship including 'RIFT Study Group' and 'West Midlands Research Collaborative'. PMID- 29331966 TI - Effectiveness and safety of oral sedation in adult patients undergoing dental procedures: protocol for a systematic review. AB - INTRODUCTION: The management of anxious patients undergoing dental procedures is still a challenge in clinical practice. Despite a wide variety of drugs for oral sedation in adult patients, there are relatively few systematic reviews that compare the effectiveness and safety of different drugs administered via this route. Thus, this study will evaluate the effectiveness and safety of oral sedation with benzodiazepines and other agents to patients undergoing dental surgical procedures. METHOD/DESIGN: We will conduct a systematic review and, if appropriate, a meta-analysis of randomised controlled clinical trials that will evaluate the use of conscious sedation administered orally to adult patients undergoing oral surgery. The search will be conducted using electronic databases, such as the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE (via Ovid), EMBASE (via Ovid), CINAHL (via Ovid), Lilacs (SciELO) and Capes database, without restriction of languages or date of publication. Primary outcomes include anxiety, sedation, treatment satisfaction, pain and adverse effects. Secondary outcomes include vital parameters (heart rate, respiratory rate and blood pressure) and patient cooperation during intervention. A team of reviewers will independently assess each citation for eligibility and in duplicates. For eligible studies, the same reviewers will perform data extraction, risk of bias assessment and determination of the overall quality of evidence using the Grading of Recommendations Assessment, Development and Evaluation classification system. ETHICS AND DISSEMINATION: The evidence gathered from this study should provide dental surgeons with knowledge on the effectiveness and safety of oral sedation in adults requiring dental surgical procedures. This in turn should contribute towards the decision-making process in dental practice, minimising the risks of anxiety and ineffective pain control in clinical procedures, as well as possible side effects. Ethics approval is not required in protocols for systematic reviews. The systematic review will be published in a peer-reviewed journal and presented at conferences. PROSPERO REGISTRATION NUMBER: CRD42017057142. PMID- 29331967 TI - Understanding frailty: a qualitative study of European healthcare policy-makers' approaches to frailty screening and management. AB - OBJECTIVE: To elicit European healthcare policy-makers' views, understanding and attitudes about the implementation of frailty screening and management strategies and responses to stakeholders' views. DESIGN: Thematic analysis of semistructured qualitative interviews. SETTING: European healthcare policy departments. PARTICIPANTS: Seven European healthcare policy-makers representing the European Union (n=2), UK (n=2), Italy (n=1), Spain (n=1) and Poland (n=1). Participants were sourced through professional networks and the European Commission Authentication Service website and were required to be in an active healthcare policy or decision-making role. RESULTS: Seven themes were identified. Our findings reveal a 'knowledge gap', around frailty and awareness of the malleability of frailty, which has resulted in restricted ownership of frailty by specialists. Policy-makers emphasised the need to recognise frailty as a clinical syndrome but stressed that it should be managed via an integrated and interdisciplinary response to chronicity and ageing. That is, through social co production. This would require a culture shift in care with redeployment of existing resources to deliver frailty management and intervention services. Policy-makers proposed barriers to a culture shift, indicating a need to be innovative with solutions to empower older adults to optimise their health and well-being, while still fully engaging in the social environment. The cultural acceptance of an integrated care system theme described the complexities of institutional change management, as well as cultural issues relating to working democratically, while in signposting adult care, the need for a personal navigator to help older adults to access appropriate services was proposed. Policy-makers also believed that screening for frailty could be an effective tool for frailty management. CONCLUSIONS: There is potential for frailty to be managed in a more integrated and person-centred manner, overcoming the challenges associated with niche ownership within the healthcare system. There is also a need to raise its profile and develop a common understanding of its malleability among stakeholders, as well as consistency in how and when it is measured. PMID- 29331969 TI - Temporal trends in antithrombotic treatment of real-world UK patients with newly diagnosed atrial fibrillation: findings from the GARFIELD-AF registry. AB - OBJECTIVE: To investigate evolving patterns in antithrombotic treatment in UK patients with newly diagnosed non-valvular atrial fibrillation (AF). DESIGN: Prospective, multicentre, international registry. SETTING: 186 primary care practices in the UK. PARTICIPANTS: 3482 participants prospectively enrolled in four sequential cohorts (cohort 2 (C2) n=830, diagnosed September 2011 to April 2013; cohort 3 (C3) n=902, diagnosed April 2013 to June 2014; cohort 4 (C4) n=850, diagnosed July 2014 to June 2015; cohort 5 (C5) n=900, diagnosed June 2015 to July 2016). Participants had newly diagnosed non-valvular AF and at least one risk factor for stroke, were aged >=18, and provided informed consent. MAIN OUTCOME MEASURES: Antithrombotic treatment initiated at diagnosis, overall and according to stroke and bleeding risks. Stroke risk was retrospectively calculated using CHA2DS2-VASc (cardiac failure, hypertension, age >=75 (doubled), diabetes, stroke (doubled)-vascular disease, age 65-74 and sex category (female)) and bleeding risk using HAS-BLED (hypertension, abnormal renal/liver function (1 point each), stroke, bleeding history or predisposition, elderly (>65), drugs/alcohol concomitantly (1 point each)). RESULTS: 42.7% were women and the mean age was 74.5 years. The median CHA2DS2-VASc score was 3 in all cohorts and the median HAS-BLED score was 2 in all cohorts. There was a statistically significant increase in the use of anticoagulant therapy from C2 to C5 (C2 54.7%, C3 60.3%, C4 73.1%, C5 73.9%; P value for trend <0.0001). The increase in the use of anticoagulant was mainly in patients with CHA2DS2-VASc >=2. The use of vitamin K antagonists (VKAs)+/-antiplatelet (AP) drugs decreased from C2 to C5 (C2 53.3%, C3 52.1%, C4 50.3%, C5 30.6%), while the use of non-vitamin K antagonist oral anticoagulants (NOACs)+/-AP increased (C2 1.3%, C3 8.0%, C4 22.7%, C5 43.3%). The use of AP only decreased (C2 36.4%, C3 25.5%, C4 11.9%, C5 10.5%), as did the combination therapy of VKA+AP (C2 13.6%, C3 11.0%, C4 9.6%, C5 5.8%). CONCLUSION: There has been a progressive increase in the proportion of patients newly diagnosed with AF receiving guideline-recommended therapy in the UK, potentially driven by the availability of NOACs. TRIAL REGISTRATION NUMBER: NCT01090362; Pre results. PMID- 29331968 TI - Association between health service utilisation of internal migrant children and parents' acculturation in Guangdong, China: a cross-sectional study. AB - OBJECTIVES: To assess the health service utilisation of internal migrant children in Guangdong, China, and to explore the association between children's health service utilisation and their parents' acculturation. DESIGN: Cross-sectional survey between April and May 2016. SETTING: Six society-run schools of Tianhe and Baiyun districts in Guangzhou City of China. PARTICIPANTS: We recruited all students at grade 7 or 8 and one of their parents who resided in Guangzhou over 6 months without permanent registered residence (hukou) in Guangzhou (1161 pairs completed this survey). 258 children were ill within the past 2 weeks or during the last year. MAIN OUTCOME MEASURES: The main outcome was self-reported health service utilisation. Logistic regression analysis was conducted to explore the association between children's unmet needs for outpatient or inpatient service and their parents' acculturation (categorised into high, middle and low groups). RESULTS: In total, 216 children, or 18.6% of the total subjects, were ill within the past 2 weeks and were in need of outpatient service; 94 children, or 8.1% of the total subjects, were in need of inpatient service. Among them, 17.6% and 46.8% of the migrant children had unmet needs for outpatient and inpatient services, respectively. After controlling for enabling resources and predisposing characteristics, migrant children with parents in the middle-acculturation group (adjusted OR=3.17, 95% CIs 1.2 to 8.3, P<0.05) were more likely to have an unmet outpatient need than high-acculturation or low-acculturation groups, although only statistically significant when comparing with the high-acculturation group. Stratified analysis suggested that this association could be moderated by their family economic status. CONCLUSIONS: Our study suggested that the association between migrant children's health service utilisation and their parents' acculturation was complex and could be moderated by family economic status. Increasing the service utilisation among migrant children requires improving the acculturation and economic status of the parents of internal migrants. PMID- 29331970 TI - Is there a social gradient of sarcopenia? A meta-analysis and systematic review protocol. AB - INTRODUCTION: Sarcopenia (or loss of muscle mass and function) is a relatively new area within the field of musculoskeletal research and medicine. Investigating whether there is a social gradient, including occupation type and income level, of sarcopenia, as observed for other diseases, will contribute significantly to the limited evidence base for this disease. This new information may inform the prevention and management of sarcopenia and widen the evidence base to support existing and future health campaigns. METHODS AND ANALYSIS: We will conduct a systematic search of the databases PubMed, Ovid, CINAHL, Scopus and EMBASE to identify articles that investigate associations between social determinants of health and sarcopenia in adults aged 50 years and older. Eligibility of the selected studies will be determined by two independent reviewers. The methodological quality of eligible studies will be assessed according to predetermined criteria. Established statistical methods to identify and control for heterogeneity will be used, and where appropriate, we will conduct a meta analysis. In the event that heterogeneity prevents numerical synthesis, a best evidence analysis will be employed. This systematic review protocol adheres to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols reporting guidelines and will be registered with the International Prospective Register of Systematic Reviews (PROSPERO). ETHICS AND DISSEMINATION: This systematic review will use published data, thus ethical permissions will not be required. In addition to peer-reviewed publication, our results will be presented at (inter)national conferences relevant to the field of sarcopenia, ageing and/or musculoskeletal health and disseminated both electronically and in print. PROSPERO REGISTRATION NUMBER: CRD42017072253. PMID- 29331971 TI - A study protocol for a non-randomised comparison trial evaluating the feasibility and effectiveness of a mobile cognitive-behavioural programme with integrated coaching for anxious adults in primary care. AB - INTRODUCTION: Generalised anxiety disorder (GAD) and subclinical GAD are highly prevalent in primary care. Unmanaged anxiety worsens quality of life in patients seen in primary care practices and leads to increased medical utilisation and costs. Programmes that teach patients cognitive-behavioural therapy (CBT) techniques have been shown to improve anxiety and to prevent the evolution of anxiety symptoms to disorders, but access and engagement have hampered integration of CBT into medical settings. METHODS AND ANALYSIS: This pragmatic study takes place in University of Pittsburgh Medical Center primary care practices to evaluate a coach-supported mobile cognitive- behavioural programme (Lantern) on anxiety symptoms and quality of life. Clinics were non-randomly assigned to either enhanced treatment as usual or Lantern. All clinics provide electronic screening for anxiety and, within clinics assigned to Lantern, patients meeting a threshold level of mild anxiety (ie, >5 on Generalised Anxiety Disorder 7-Item Questionnaire (GAD-7)) are referred to Lantern. The first study phase is aimed at establishing feasibility, acceptability and effectiveness. The second phase focuses on long-term impact on psychosocial outcomes, healthcare utilisation and clinic/provider adoption/sustainable implementation using a propensity score matched parallel group study design. Primary outcomes are changes in anxiety symptoms (GAD-7) and quality of life (Short-Form Health Survey) between baseline and 6-month follow-ups, comparing control and intervention. Secondary outcomes include provider and patient satisfaction, patient engagement, durability of changes in anxiety symptoms and quality of life over 12 months and the impact of Lantern on healthcare utilisation over 12 months. Patients from control sites will be matched to the patients who use the mobile app. ETHICS AND DISSEMINATION: Ethics and human subject research approval were obtained. A data safety monitoring board is overseeing trial data and ethics. Results will be communicated to participating primary care practices, published and presented at clinical and scientific conferences. TRIAL REGISTRATION NUMBER: NCT03035019. PMID- 29331972 TI - Cohort profile: the Comparative Outcomes And Service Utilization Trends (COAST) Study among people living with and without HIV in British Columbia, Canada. AB - PURPOSE: The Comparative Outcomes And Service Utilization Trends (COAST) Study in British Columbia (BC), Canada, was designed to evaluate the determinants of health outcomes and health care services use among people living with HIV (PLHIV) as they age in the period following the introduction of combination antiretroviral therapy (cART). The study also assesses how age-associated comorbidities and health care use among PLHIV may differ from those observed in the general population. PARTICIPANTS: COAST was established through a data linkage between two provincial data sources: The BC Centre for Excellence in HIV/AIDS Drug Treatment Program, which centrally manages cART dispensation across BC and contains prospectively collected data on demographic, immunological, virological, cART use and other clinical information for all known PLHIV in BC; and Population Data BC, a provincial data repository that holds individual event level, longitudinal data for all 4.6 million BC residents. COAST participants include 13 907 HIV-positive adults (>=19 years of age) and a 10% random sample inclusive of 516 340 adults from the general population followed from 1996 to 2013. FINDINGS TO DATE: For all participants, linked individual-level data include information on demographics, health service use (eg, inpatient care, outpatient care and prescription medication dispensations), mortality, and HIV diagnostic and clinical data. Publications from COAST have demonstrated the significant mortality reductions and dramatic changes in the causes of death among PLHIV from 1996 to 2012, differences in the amount of time spent in a healthy state by HIV status, and high levels of injury and mood disorder diagnosis among PLHIV compared with the general population. FUTURE PLANS: To capture the dynamic nature of population health parameters, regular data updates and a refresh of the data linkage are planned to occur every 2 years, providing the basis for planned analysis to examine age-associated comorbidities and patterns of health service use over time. PMID- 29331973 TI - Family-focused practices in addictions: a scoping review protocol. AB - INTRODUCTION: Families are significantly impacted by addictions and family involvement in treatment can reduce the harms and can also improve treatment entry, treatment completion and treatment outcomes for the individual coping with an addiction. Although the benefits of family-focused practices in addictions have been documented, services continue to have an individual focus and research on this topic is also limited. The objective of this study is to map the extent, range and nature of evidence available examining family interventions in addictions and identify gaps to guide future research, policy and practice. METHODS AND ANALYSIS: This is a scoping review using the five-stage framework developed by Arksey and O'Malley. We will include published and unpublished empirical studies focusing on any type of family interventions in addiction treatment between 2000 and the present in English or French. A reviewer will search for literature that meets the inclusion criteria through the following electronic databases: MEDLINE, PsycINFO and Social Services Abstracts. For a comprehensive search, we will also hand-search reference lists, web sites and key journals. Data will be charted and sorted using a thematic analysis approach. ETHICS AND DISSEMINATION: This review will be the first to examine all forms of family-focused practices for both substance use and problem gambling treatment for adults. It will provide information about existing service provisions and gaps in practice. This review can be used to start moving towards the development of best practices for families in addiction treatment. The results will be disseminated through a peer-reviewed journal and at mental health and addiction conferences. PMID- 29331974 TI - What are the physical and psychological health effects of suicide bereavement on family members? An observational and interview mixed-methods study in Ireland. AB - OBJECTIVES: Research focussing on the impact of suicide bereavement on family members' physical and psychological health is scarce. The aim of this study was to examine how family members have been physically and psychologically affected following suicide bereavement. A secondary objective of the study was to describe the needs of family members bereaved by suicide. DESIGN: A mixed-methods study was conducted, using qualitative semistructured interviews and additional quantitative self-report measures of depression, anxiety and stress (DASS-21). SETTING: Consecutive suicide cases and next-of-kin were identified by examining coroner's records in Cork City and County, Ireland from October 2014 to May 2016. PARTICIPANTS: Eighteen family members bereaved by suicide took part in a qualitative interview. They were recruited from the Suicide Support and Information System: A Case-Control Study (SSIS-ACE), where family members bereaved by suicide (n=33) completed structured measures of their well-being. RESULTS: Qualitative findings indicated three superordinate themes in relation to experiences following suicide bereavement: (1) co-occurrence of grief and health reactions; (2) disparity in supports after suicide and (3) reconstructing life after deceased's suicide. Initial feelings of guilt, blame, shame and anger often manifested in enduring physical, psychological and psychosomatic difficulties. Support needs were diverse and were often related to the availability or absence of informal support by family or friends. Quantitative results indicated that the proportion of respondents above the DASS-21 cut-offs respectively were 24% for depression, 18% for anxiety and 27% for stress. CONCLUSIONS: Healthcare professionals' awareness of the adverse physical and psychosomatic health difficulties experienced by family members bereaved by suicide is essential. Proactively facilitating support for this group could help to reduce the negative health sequelae. The effects of suicide bereavement are wide-ranging, including high levels of stress, depression, anxiety and physical health difficulties. PMID- 29331975 TI - Is postoperative bracing after pedicle screw fixation of spine fractures necessary? Study protocol of the ORNOT study: a randomised controlled multicentre trial. AB - INTRODUCTION: The most common surgical treatment of traumatic spine fractures is through a posterior approach using pedicle screws and rods. Postoperative treatment protocols including the use of postoperative orthoses however differ between hospitals and surgeons. A three-point hyperextension orthosis is designed to support proper posture and unload the anterior column. Some motion remains when wearing an orthosis, and its main value in postoperative treatment is therefore believed to be pain relief and patient confidence. This could consequently shorten recovery time. On the other hand, an orthosis could also lead to muscle weakness and slow down recovery. Any orthosis-related complications might also be avoided. Additionally, recent studies on conservative fracture treatment show no difference in radiological outcomes with or without an orthosis. To date, no randomised studies have been performed on the use of postoperative orthoses. METHODS AND ANALYSIS: Patients undergoing posterior fixation with pedicle screws for a traumatic thoracolumbar fracture (T7-L4) will be included in this randomised controlled multicentre non-inferiority trial. Forty-six patients will be randomised 1:1 to one of the two parallel groups; one group will wear a postoperative orthosis for 6 weeks followed by 6 weeks of weaning and one group will not wear an orthosis. The primary outcome is pain at 6 weeks reported on the Numerical Rating Scale. Secondary outcomes consist of pain on other moments, analgesic use, complications and length of hospital stay, quality of life (EuroQuol 5 Dimensions), back pain-related function (Oswestry Disability Index) and radiological outcomes with a follow-up of 1 year. Orthosis compliance is monitored weekly in the orthosis group. ETHICS AND DISSEMINATION: The institutional review board (METc VUmc) approved this study on 11 October 2016 under case number 2016.389. After completion of the trial, the results will be offered to an international scientific journal for peer-reviewed publication. TRIAL REGISTRATION NUMBER: NCT03097081 and NTR6285; Pre-results. PMID- 29331976 TI - Concealment of type 1 diabetes at work in Finland: a mixed-method study. AB - OBJECTIVES: To explore the possible reasons for concealing type 1 diabetes (T1D) at work. METHODS: The main set of data came from a cross-sectional survey (response rate 49.3%), the participants of which were 688 wage earners with T1D. Concealment of T1D was measured by asking respondents have they ever during their working career hidden their diabetes from their (A) colleagues and (B) line manager. Furthermore, semistructured interviews (n=20) were conducted to obtain deeper understanding. Questionnaire data were analysed using logistic regression analyses and qualitative interviews with inductive thematic analysis. RESULTS: About 30% of wage earners with T1D had concealed their condition during their working career from their colleagues and almost 20% from their line manager. Individuals aged 18-44 years age were more likely to conceal their T1D from their colleagues than older workers during their working career. Not disclosing T1D to the extended family (OR 5.24 (95% CI 2.06 to 13.35)), feeling an outsider at work (OR 2.47 (95% CI 1.58 to 3.84)), being embarrassed by receiving special attention at work (OR 1.99 (95% CI 1.33 to 2.96)) and neglecting treatment at work (OR 1.59 (95% CI 1.01 to 2.48)) were all associated with concealment of T1D from colleagues. The youngest age group of 18-24 years were more likely to conceal their T1D from their line managers than the older age groups during their working career. Not disclosing T1D to the extended family (OR 4.41 (95% CI 1.72 to 11.32)), feeling like an outsider at work (OR 2.51 (1.52 to 4.14)) and being embarrassed by receiving special attention at work (OR 1.81 (95% CI 1.13 to 2.91)) were associated with concealment of T1D from line managers. From the interviews, five main themes related to concealment emerged, expressing fears related to the consequences of telling: (1) being perceived as weak, (2) job discrimination, (3) unwanted attention, (4) being seen as a person who uses their T1D for seeking advantages and (5) losing privacy. CONCLUSIONS: A considerable proportion of wage earners with T1D are concealing their diagnosis often because of feelings associated with stigma. Both overemphasis and underestimation of T1D at work by the colleagues or line manager may lead to concealing T1D and may thus be harmful to self-management of T1D. The obstacles in disclosing T1D might be diminished by giving adequate information at the workplace about the condition and its significance. PMID- 29331977 TI - Clinical outcomes and prognostic factors in patients with spinal dural arteriovenous fistulas : a prospective cohort study in two Chinese centres. AB - BACKGROUND: The short-term outcomes and prognostic factors of patients with spinal dural arteriovenous fistulas (SDAVFs) have not been defined in large cohorts. OBJECTIVE: To define the short-term clinical outcomes and prognostic factors in patients with SDAVFs. METHODS: A prospective cohort of 112 patients with SDAVFs were included consecutively in this study. The patients were serially evaluated with the modified Aminoff and Logue's Scale (mALS) one day before surgery and at 3 months, 6 months and 12 months after treatment. Univariate and multivariate analyses were performed to identify demographic, clinical and procedural factors related to favourable outcome. RESULTS: A total of 94 patients (mean age 53.5 years, 78 were men) met the criteria and are included in the final analyses. Duration of symptom ranged from 0.5 to 66 months (average time period of 12.7 months). The location of SDAVFs was as follows: 31.6% above T7 level, 48.4% between T7 and T12 level (including T7 and T12) and 20.0% below T12 level. A total of 81 patients (86.2%) underwent neurosurgical treatment, 10 patients (10.6%) underwent endovascular treatment, and 3 patients (3.2%) underwent neurosurgical treatment after unsuccessful embolisation. A total of 78 patients demonstrated an improvement in mALS score of one point or greater at 12 months. Preoperative mALS score was associated with clinical improvement after adjusting for age, gender, duration of symptoms, location of fistula and treatment modality using unconditional logistic regression analysis (p<0.05). CONCLUSION: Approximately four fifths of the patients experienced clinical improvement at 12 months and preoperative mALS was the strongest predictor of clinical improvement in the cohort. PMID- 29331978 TI - Postdischarge service utilisation and outcomes among Chinese and South Asian psychiatric inpatients in Ontario, Canada: a population-based cohort study. AB - OBJECTIVE: We sought to examine the short-term and long-term impacts of psychiatric hospitalisations among patients of Chinese and South Asian origin. DESIGN: Retrospective population-based cohort study using linked health administrative data. SETTING: We examined all adult psychiatric inpatients discharged between 1 April 2006 and 31 March 2014 in Ontario, Canada, who were classified as Chinese, South Asian and all other ethnicities (ie, 'general population') using a validated algorithm. We identified 2552 Chinese, 2439 South Asian and 127 142 general population patients. PRIMARY AND SECONDARY OUTCOME MEASURES: We examined psychiatric severity measures at admission and discharge and performed multivariable logistic regression analyses to examine 30-day, 180 day and 365-day postdischarge service utilisation and outcomes, comparing each of the ethnic groups with the reference population, after adjustment for age, sex, income, education, marital status, immigration status, community size and discharge diagnosis. RESULTS: Despite presenting to hospital with greater illness severity, Asian psychiatric inpatients had shorter lengths of hospital stay and greater absolute improvements in mental health and functional status at discharge compared with other inpatients. After hospitalisation, Chinese patients were more likely to visit psychiatrists and South Asian patients were more likely to seek mental healthcare from general practitioners. They were also less likely to have a psychiatric readmission or die 1 year following hospitalisation (adjusted ORChinese=0.87; 95% CI 0.79 to 0.97; adjusted ORSouth Asian=0.82, 95% CI 0.73 to 0.91). Findings were consistent across genders, psychiatric diagnoses and immigrant groups. CONCLUSION: Once hospitalised, patients of Chinese and South Asian origin fared as well as or better than general population patients at discharge and following discharge, and had a positive trajectory of psychiatric service utilisation. PMID- 29331979 TI - Now you see me: a pragmatic cohort study comparing first and final radiological diagnoses in the emergency department. AB - OBJECTIVES: To (1) compare timely but preliminary and definitive but delayed radiological reports in a large urban level 1 trauma centre, (2) assess the clinical significance of their differences and (3) identify clinical predictors of such differences. DESIGN, SETTING AND PARTICIPANTS: We performed a retrospective record review for all 2914 patients who presented to our university affiliated emergency department (ED) during a 6-week period. In those that underwent radiological imaging, we compared the patients' discharge letter from the ED to the definitive radiological report. All identified discrepancies were assessed regarding their clinical significance by trained raters, independent and in duplicate. A binary logistic regression was performed to calculate the likelihood of discrepancies based on readily available clinical data. RESULTS: 1522 patients had radiographic examinations performed. Rater agreement on the clinical significance of identified discrepancies was substantial (kappa=0.86). We found an overall discrepancy rate of 20.35% of which about one-third (7.48% overall) are clinically relevant. A logistic regression identified patients' age, the imaging modality and the anatomic region under investigation to be predictive of future discrepancies. CONCLUSIONS: Discrepancies between radiological diagnoses in the ED are frequent and readily available clinical factors predict their likelihood. Emergency physicians should reconsider their discharge diagnosis especially in older patients undergoing CT scans of more than one anatomic region. PMID- 29331980 TI - DMC1 mutation that causes human non-obstructive azoospermia and premature ovarian insufficiency identified by whole-exome sequencing. AB - BACKGROUND: The genetic causes of the majority of male and female infertility caused by human non-obstructive azoospermia (NOA) and premature ovarian insufficiency (POI) with meiotic arrest are unknown. OBJECTIVE: To identify the genetic cause of NOA and POI in two affected members from a consanguineous Chinese family. METHODS: We performed whole-exome sequencing of DNA from both affected patients. The identified candidate causative gene was further verified by Sanger sequencing for pedigree analysis in this family. In silico analysis was performed to functionally characterise the mutation, and histological analysis was performed using the biopsied testicle sample from the male patient with NOA. RESULTS: We identified a novel homozygous missense mutation (NM_007068.3: c.106G>A, p.Asp36Asn) in DMC1, which cosegregated with NOA and POI phenotypes in this family. The identified missense mutation resulted in the substitution of a conserved aspartic residue with asparaginate in the modified H3TH motif of DMC1. This substitution results in protein misfolding. Histological analysis demonstrated a lack of spermatozoa in the male patient's seminiferous tubules. Immunohistochemistry using a testis biopsy sample from the male patient showed that spermatogenesis was blocked at the zygotene stage during meiotic prophase I. CONCLUSIONS: To the best of our knowledge, this is the first report identifying DMC1 as the causative gene for human NOA and POI. Furthermore, our pedigree analysis shows an autosomal recessive mode of inheritance for NOA and POI caused by DMC1 in this family. PMID- 29331981 TI - Variant in C-terminal region of intestinal alkaline phosphatase associated with benign familial hyperphosphatasaemia. AB - BACKGROUND: A genetic diagnosis has been rarely performed in benign familial hyperphosphatasaemia, and molecular mechanism largely remains unclear. OBJECTIVES: We encountered a case with benign familial hyperphosphatasaemia of intestinal alkaline phosphatase (IAP). To elucidate the molecular mechanism, we performed ALPI gene sequencing and in vitro protein expression analysis. METHODS: ALPI gene was sequenced by long-range PCR and massively parallel sequencing. The soluble and membrane-bound ALP activities of the cultured cell line, transfected with the wild-type or variant-type ALPI gene were analysed by a glycosylphosphatidylinositol (GPI)-cleaving assay. RESULTS: We identified a deletion-insertion variant in the C-terminal end of the ALPI gene. This variant causes the attenuation of the hydrophobicity in GPI-anchor signal of IAP. An in vitro GPI-cleaving assay demonstrated that the membrane-bound IAP was greatly decreased, whereas the soluble IAP was increased, in the variant IAP. CONCLUSIONS: The C-terminal variant in ALPI causes the benign familial hyperphosphatasaemia of IAP by the attenuation of the membrane-binding capability. PMID- 29331982 TI - A false-carrier state for the c.579G>A mutation in the NCF1 gene in Ashkenazi Jews. AB - BACKGROUND: Mutations in the NCF1 gene that encodes p47phox, a subunit of the NADPH oxidase complex, cause chronic granulomatous disease (CGD). In Kavkazi Jews, a c.579G>A (p.Trp193Ter) mutation in NCF1 is frequently found, leading to CGD. The same mutation is found in about 1% of Ashkenazi Jews, although Ashkenazi CGD patients with this mutation have never been described. METHODS: We used Sanger sequencing, multiplex ligation-dependent probe amplification (MLPA), gene scan analysis and Ion Torrent Next Generation Sequencing for genetic analysis, and measured NADPH oxidase activity and p47phox expression. RESULTS: In an Ashkenazi couple expecting a baby, both parents were found to be heterozygotes for this mutation, as was the fetus. However, segregation analysis in the extended family was consistent with the fetus inheriting both carrier alleles from the parents. MLPA indicated four complete NCF1 genes in the fetus and three in each parent. Gene sequencing confirmed these results. Analysis of fetal leucocytes obtained by cordocentesis revealed substantial oxidase activity with three different assays, which was confirmed after birth. In six additional Ashkenazi carriers of the NCF1 c.579G>A mutation, we found five individuals with three complete NCF1 genes of which one was mutated (like the parents), and one individual with in addition a fusion gene of NCF1 with a pseudogene. CONCLUSION: These results point to the existence of a 'false-carrier' state in Ashkenazi Jews and have wide implications regarding pre-pregnancy screening in this and other population groups. PMID- 29331983 TI - Ophthalmoscopy skills in primary care: a cross-sectional practitioner survey. PMID- 29331984 TI - Response to: 'Psychosocial job stressors and suicidality: a meta-analysis and systematic review' by Milner et al. PMID- 29331985 TI - Repair for rheumatic mitral valve disease. The controversy goes on! PMID- 29331989 TI - Learning framework for implementing best evidence. PMID- 29331988 TI - Airflow limitation in people living with HIV and matched uninfected controls. AB - INTRODUCTION: Whether HIV influences pulmonary function remains controversial. We assessed dynamic pulmonary function in people living with HIV (PLWHIV) and uninfected controls. METHODS: A total of 1098 PLWHIV from the Copenhagen Co morbidity in HIV infection study and 12 161 age-matched and sex-matched controls from the Copenhagen General Population Study were included. Lung function was assessed using FEV1 and FVC, while airflow limitation was defined by the lower limit of normal (LLN) of FEV1/FVC and by FEV1/FVC<0.7 with FEV1predicted <80% (fixed). Logistic and linear regression models were used to determine the association between HIV and pulmonary function adjusting for potential confounders (including smoking and socioeconomic status). RESULTS: In predominantly white men with mean (SD) age of 50.6 (11.1) the prevalence of airflow limitation (LLN) was 10.6% (95% CI 8.9% to 12.6%) in PLWHIV and 10.6% (95% CI 10.0 to 11.1) in uninfected controls. The multivariable adjusted OR for airflow limitation defined by LLN for HIV was 0.97 (0.77-1.21, P<0.78) and 1.71 (1.34-2.16, P<0.0001) when defined by the fixed criteria. We found no evidence of interaction between HIV and cumulative smoking in these models (P interaction: 0.25 and 0.17 for LLN and fixed criteria, respectively). HIV was independently associated with 197 mL (152-242, P<0.0001) lower FEV1 and 395 mL (344-447, P<0.0001) lower FVC, and 100 cells/mm3 lower CD4 nadir was associated with 30 mL (7-52, P<0.01) lower FEV1 and 51 mL (24-78, P<0.001) lower FVC. CONCLUSION: HIV is a risk factor for concurrently decreased FEV1 and FVC. This excess risk is not explained by smoking or socioeconomic status and may be mediated by prior immunodeficiency. TRIAL REGISTRATION NUMBER: NCT02382822. PMID- 29331986 TI - Sex differences in impact of coronary artery calcification to predict coronary artery disease. AB - OBJECTIVE: To assess sex-specific differences regarding use of conventional risks and coronary artery calcification (CAC) to detect coronary artery disease (CAD) using coronary CT angiography (CCTA). METHODS: The Nationwide Gender-specific Atherosclerosis Determinants Estimation and Ischemic Cardiovascular Disease Prospective Cohort study is a prospective, multicentre, nationwide cohort study. Candidates with suspected CAD aged 50-74 years enrolled from 2008 to 2012. The outcome was obstructive CAD defined as any stenosis >=50% by CCTA. We constructed logistic regression models for obstructive CAD adjusted for conventional risks (clinical model) and CAC score. Improvement in discrimination beyond risks was assessed by C-statistic; net reclassification index (NRI) for CAD probability of low (<30%), intermediate (30%-60%) and high (>=60%); and risk stratification capacity. RESULTS: Among 991 patients (456 women, 535 men; 65.2 vs 64.4 years old), women had lower CAC scores (median, 4 vs 60) and lower CAD prevalence (21.7% vs 37.0%) than men. CAC significantly improved model discrimination compared with clinical model in both sexes (0.66-0.79 in women vs 0.61-0.83 in men). The NRI for women was 0.33, which was much lower than that for men (0.71). Adding CAC to clinical model had a larger benefit in terms of moving an additional 43.3% of men to the most determinant categories (high or low risk) compared with -1.4% of women. CONCLUSIONS: The addition of CAC to a prediction model based on conventional variables significantly improved the classification of risk in suspected patients with CAD, with sex differences influencing the predictive ability. TRIAL REGISTRATION NUMBER: UMIN-CTR Clinical Trial: UMIN000001577. PMID- 29331990 TI - Changes in the legal environment and enforcement of firearm transfer laws in Pennsylvania and Maryland. AB - The effectiveness of laws depends on circumstances affecting their enforcement. To assess such circumstances for comprehensive background check (CBC) and straw purchase laws for firearm sales, we examined prosecutions for CBC and straw purchase violations in Pennsylvania and CBC violations in Maryland. We generated pre-post variables and conducted t-tests to assess differences in the mean number of prosecutions filed following changes to the legal environments. The annual number of prosecutions for straw purchase violations increased significantly in Pennsylvania following the passage of a law that strengthened penalties for these violations (difference in means = +1310.86, P=0.003). The annual number of prosecutions for CBC violations decreased significantly in Maryland following a court decision that narrowed the definition of a firearm transfer making enforcement more difficult (difference in means = -20.52, P=0.026). Our findings suggest enforcement is likely influenced by the penalties associated with violating these laws and the interpretation of the language of the laws. PMID- 29331991 TI - Gauging the impact of gun background checks. PMID- 29331992 TI - Effectiveness of interventions for reducing non-occupational sedentary behaviour in adults and older adults: a systematic review and meta-analysis. AB - BACKGROUND: No systematic reviews of the effectiveness of interventions for reducing non-occupational sedentary behaviour are available. Therefore, the aim of this systematic review was to assess the effectiveness of interventions for reducing non-occupational sedentary behaviour in adults and older adults. METHODS: An electronic search of nine databases was performed. Randomised controlled trials (RCT) and cluster RCTs among adults testing the effectiveness of interventions aimed to reduce non-occupational sedentary behaviour were considered for inclusion. Two review authors independently screened studies for eligibility, completed data extraction and assessed the risk of bias. RESULTS: Nineteen studies that evaluated multicomponent lifestyle interventions, counselling or education, television (TV) control devices and workplace interventions were included. Evidence from the meta-analyses suggested that interventions can reduce leisure sitting time in adults in the medium term (-30 min/day; 95% CI -58 to -2), and TV viewing in the short term (-61 min/day; 95% CI -79 to -43) and medium term (-11 min/day; 95% CI -20 to -2). No significant pooled effects were found for transport sitting time, leisure-time computer use and longer term outcomes. No evidence was available on the effectiveness of interventions for reducing non-occupational sedentary time in older adults. CONCLUSIONS: The findings of this systematic review suggest the interventions may be effective in reducing non-occupational sedentary behaviour in the short to medium term in adults. However, no significant effect was found on longer term outcomes. The quality of evidence was, however, low to very low. No evidence was available on the effectiveness of non-occupational interventions on reducing sedentary time in older adults. Further high-quality research with larger samples is warranted. PMID- 29331993 TI - Increased leisure-time physical activity associated with lower onset of diabetes in 44 828 adults with impaired fasting glucose: a population-based prospective cohort study. AB - AIMS: To evaluate the effects of habitual leisure-time physical activity (LTPA) on incident type 2 diabetes in a prospective cohort of Chinese adults with impaired fasting glucose (IFG). METHODS: 44 828 Chinese adults aged 20-80 years with newly detected IFG but free from cardiovascular and cerebrovascular disease were recruited and followed up from 1996 to 2014. Incident type 2 diabetes was identified by fasting plasma glucose >=7 mmol/L. The participants were classified into four categories based on their self-reported weekly LTPA: inactive, low, moderate, or high. Hazard ratios (HRs) and population attributable fractions (PAFs) were estimated with adjustment for established diabetic risk factor. RESULTS: After 214 148 person-years of follow-up, we observed an inverse dose response relationship between LTPA and diabetes risk. Compared with inactive participants, diabetes risk in individuals reporting low, moderate and high volume LTPA were reduced by 12% (HR 0.88, 95% CI 0.80 to 0.99; P=0.015), 20% (HR 0.80, 95% CI 0.71 to 0.90; P<0.001), and 25% (HR 0.75, 95% CI 0.67 to 0.83; P<0.001), respectively. At least 19.2% (PAF 19.2%, 95% CI 5.9% to 30.6%) of incident diabetes cases could be avoided if the inactive participants had engaged in WHO recommendation levels of LTPA. This would correspond to a potential reduction of at least 7 million diabetic patients in the Greater China area. CONCLUSIONS: Our results show higher levels of LTPA are associated with a lower risk of diabetes in IFG subjects. These data emphasise the urgent need for promoting physical activity as a preventive strategy against diabetes to offset the impact of population ageing and the growing obesity epidemic. PMID- 29331994 TI - ACL and meniscal injuries increase the risk of primary total knee replacement for osteoarthritis: a matched case-control study using the Clinical Practice Research Datalink (CPRD). AB - OBJECTIVES: The aim of this study was to investigate whether ACL injury (ACLi) or meniscal injury increases the risk of end-stage osteoarthritis (OA) resulting in total knee replacement (TKR). METHODS: A matched case-control study of all TKRs performed in the UK between January 1990 and July 2011 and recorded in the Clinical Practice Research Datalink (CPRD) was undertaken. The CPRD contains longitudinal data on approximately 3.6 million patients. Two controls were selected for each case of TKR, matched on age, sex and general practitioner location as a proxy for socioeconomic status. Individuals with inflammatory arthritis were excluded. The odds of having TKR for individuals with a CPRD recorded ACLi were compared with those without ACLi using conditional logistic regression, after adjustment for body mass index, previous knee fracture and meniscal injury. The adjusted odds of TKR in individuals with a recorded meniscal injury compared with those without were calculated. RESULTS: After exclusion of individuals with inflammatory arthritis, there were 49 723 in the case group and 104 353 controls. 153 (0.31%) cases had a history of ACLi compared with 41 (0.04%) controls. The adjusted OR of TKR after ACLi was 6.96 (95% CI 4.73 to 10.31). 4217 (8.48%) individuals in the TKR group had a recorded meniscal injury compared with 669 (0.64%) controls. The adjusted OR of TKR after meniscal injury was 15.24 (95% CI 13.88 to 16.69). CONCLUSION: This study demonstrates that ACLi is associated with a sevenfold increased odds of TKR resulting from OA. Meniscal injury is associated with a 15-fold increase odds of TKR for OA. PMID- 29331995 TI - Infographic: Trends in paediatric and adolescent ACL injuries. PMID- 29331997 TI - Correction: A rare case of dual diagnosis in a 16-year-old girl with shortness of breath. PMID- 29331996 TI - Relevance of enlarged cardiophrenic lymph nodes in determining prognosis of patients with advanced ovarian cancer. AB - Ovarian cancer often presents at an advanced stage with widespread peritoneal and/or extra-abdominal metastases. Complete cytoreduction is the mainstay of treatment for disease confined to peritoneum. But in patients with distant metastases, the role and rationale is less obvious. One of the the most common sites of extra-abdominal disease is the cardiophrenic lymph node (CPLN). In this paper, we described the management of a patient with International Federation of Gynecology and Obstetrics (FIGO) stage IVB epithelial ovarian carcinoma and widespread peritoneal and extra-abdominal metastases to the CPLN, who underwent complete cytoreduction including excision of enlarged CPLN, following neoadjuvant chemotherapy. We examined the literature to determine the prognostic value of enlarged CPLN and their relevance in managing patients with advanced ovarian cancer and found it as an adverse prognostic factor. Transdiaphragmatic excision of CPLN is feasible without major complications. But as its correlation with overall or progression-free survival is not yet evident, large-scale prospective studies are warranted. PMID- 29331998 TI - Torsion and rupture of a non-communicating rudimentary horn in a 17-week gestation in a 16-year-old girl: lessons learnt. AB - A unicornuate uterus with non-communicating rudimentary horn has always been notorious and poses threat to continuation of pregnancy with dismal consequences. We are reporting an interesting case of uterine malformation with a 90 degrees rotation of uterine axis which ultimately ruptured during termination of pregnancy. The rarity in our case was not only conception in non-communicating horn but also the complete twisting of axis which made the pregnant horn come in front of the non-gravid unicornuate uterus, mimicking normal pregnancy. The most important lesson learnt is that if induction does not lead to cervical changes and uterine contractions, one must consider atypical presentations of an anomalous uterus as a possible differential before proceeding further. PMID- 29331999 TI - Eighty-five-year-old man with mosaic attenuation on chest imaging. PMID- 29332000 TI - How good are doctors at introducing themselves? #hellomynameis. AB - BACKGROUND: This explorative study was triggered by the '#hellomynameis' campaign initiated by Dr Kate Granger in the UK. Our objectives were twofold: first, to measure rates of introduction in an Irish hospital setting by both consultant and non-consultant hospital doctors. Second to establish whether such practices were associated with patient perceptions of the doctor/patient interaction. METHOD: A patient 'exit' survey was undertaken following doctor-patient consultations in both acute (surgical and medical assessment units) and elective settings (outpatient clinics). The survey was carried out over a 5-month period by three trained clinical observers. RESULTS: A total of 353 patients were surveyed. There were 253 outpatients and 100 inpatients surveyed. There were 121 outpatients (47.8%) who attended a surgeon, 73 were medical (28.8%), while 59 (23.3%) were divided between obstetrics, gynaecology and ophthalmology. One hundred acute presentations were surveyed: 52% in the emergency department, 20% to the acute medical assessment unit, 21% attended the acute surgical assessment unit and 7% attended other specialties/departments. CONCLUSION: According to the returned forms, 79% of doctors (n=279) introduced themselves to patients. Eleven per cent (39) of doctors did not introduce themselves, and 8.5% of patients (30) were unsure whether the doctor had introduced themselves. Five patients left their response blank.Consultants were significantly more likely (P=0.02) to introduce themselves or shake hands than non-consultant hospital doctors. Gender had no bearing (P=0.43) on introductions or handshakes regardless of grade of doctor.Three hundred and seventeen patients (89.7%) felt that an introduction had made a positive difference to their healthcare visit. Thirty patients (8.5%) felt it did not make a difference and 8 patients (2.2%) were unsure or failed to answer.This study has highlighted the importance of introductions to patients. Definite evidence of an introduction was documented in 79% of patients with 14.5% either not receiving or could not recall whether an introduction had been made on repeat visits. 6.5% stated that they did not receive an introduction. PMID- 29332001 TI - Problem-solving in clinical practice: a baby who won't stop bleeding. AB - Spontaneous bleeding in the neonatal period is an unusual presentation, and yet one that can pose a challenge of both diagnosis and management to the general paediatrician. This case chronicles the diagnostic journey of an 8-day-old baby who presented with unrelenting bleeding from the umbilical cord and explores the clinical approach to bleeding in a neonate. PMID- 29332003 TI - What do I need to know about metronidazole? PMID- 29332002 TI - The implementation of a cystic fibrosis annual review process in a tertiary paediatric hospital. AB - We evaluated the implementation of a cystic fibrosis annual review process in a tertiary paediatric hospital. After implementation, there was demonstrated improvement in an important outcome measure-the use of inhaled mucolytic agents. PMID- 29332004 TI - Host-agent-vector-environment measures for electronic cigarette research used in NIH grants. AB - OBJECTIVE: The purpose of this study is to describe the focus and comprehensiveness of domains measured in e-cigarette research. METHODS: A portfolio analysis of National Institutes of Health grants focusing on e cigarette research and funded between the fiscal years 2007 and 2015 was conducted. Grant proposals were retrieved using a government database and coded using the Host-Agent-Vector-Environment (HAVE) model as a framework to characterise the measures proposed. Eighty-one projects met the criteria for inclusion in the analysis. RESULTS: The primary HAVE focus most commonly found was Host (73%), followed by Agent (21%), Vector (6%) and Environment (0%). Intrapersonal measures and use trajectories were the most common measures in studies that include Host measures (n=59 and n=51, respectively). Product composition was the most common area of measurement in Agent studies (n=24), whereas Marketing (n=21) was the most common (n=21) area of Vector measurement. When Environment measures were examined as secondary measures in studies, they primarily focused on measuring Peer, Occupation and Social Networks (n=18). Although all studies mentioned research on e-cigarettes, most (n=52; 64%) did not specify the type of e-cigarette device or liquid solution under study. CONCLUSIONS: This analysis revealed a heavy focus on Host measures (73%) and a lack of focus on Environment measures. The predominant focus on Host measures may have the unintended effect of limiting the evidence base for tobacco control and regulatory science. Further, a lack of specificity about the e-cigarette product under study will make comparing results across studies and using the outcomes to inform tobacco policy difficult. PMID- 29332005 TI - Impact of a negative emotional antitobacco mass media campaign on French smokers: a longitudinal study. AB - BACKGROUND: Mass media campaigns to encourage smoking cessation have been shown to be effective in a context of comprehensive tobacco control programme. The effectiveness of antismoking ads that evoke negative emotions remains unclear, in particular in countries with high smoking prevalence and among smokers with low perceived susceptibility, low self-efficacy or who are not users of smoking cessation services. OBJECTIVE: To evaluate short-term and long-term effects of a 1-month French national highly emotional media campaign, with a focus on these specific targets. DESIGN: A 6-month longitudinal survey by Internet. A sample of 3000 smokers were interviewed before the media campaign (T0). They were contacted again just after (T1) and 6 months after the campaign (T2). OUTCOMES: Perceived susceptibility to the risks of smoking, self-efficacy to quit smoking, use of smoking cessation services (quitline and website) and 7-day quitting. METHODS: The analysis was carried out on 2241 individuals who answered at T1 and T2. Multiple logistic regressions were computed to test the association between the change in each outcome at T1 and T2 and the level of exposure based on self reported recall. RESULTS: Self-reported recall was associated with an increase in perceived susceptibility and with use of cessation services. Campaign recall was also associated with higher 7-day quitting immediately after the campaign (OR=1.8 (1.0 to 3.2), P<0.05). CONCLUSIONS: Fear-appeal mass media campaigns can be effective in encouraging cessation among smokers in a country with high smoking prevalence (France), but should be accompanied by convincing self-efficacy messages. PMID- 29332006 TI - Global evidence on the effect of point-of-sale display bans on smoking prevalence. AB - BACKGROUND: Since Iceland became the first country to impose a ban on point-of sale (POS) tobacco product displays in 2001, 20 countries have implemented POS display bans as of 2016. This study examined the effect that POS display bans have on smoking prevalence. METHODS: Data were sourced from Euromonitor International and the WHO MPOWER package for 2007-2014 from 77 countries worldwide. generalised linear models with country and year fixed effects were estimated to analyse the effect of POS display bans on smoking prevalence. RESULTS: Having a POS display ban reduced overall adult daily smoking, male smoking and female smoking by about 7%, 6% and 9%, respectively. CONCLUSIONS: Having a POS display ban is likely to reduce smoking prevalence and generate public health benefits. PMID- 29332007 TI - Impacts of Canada's minimum age for tobacco sales (MATS) laws on youth smoking behaviour, 2000-2014. AB - BACKGROUND: Recently, the US Institute of Medicine has proposed that raising the minimum age for tobacco purchasing/sales to 21 years would likely lead to reductions in smoking behavior among young people. Surprisingly few studies, however, have assessed the potential impacts of minimum-age tobacco restrictions on youth smoking. OBJECTIVE: To estimate the impacts of Canadian minimum age for tobacco sales (MATS) laws on youth smoking behaviour. DESIGN: A regression discontinuity design, using seven merged cycles of the Canadian Community Health Survey, 2000-2014. PARTICIPANTS: Survey respondents aged 14-22 years (n=98 320). EXPOSURE: Current Canadian MATS laws are 18 years in Alberta, Saskatchewan, Manitoba, Quebec, the Yukon and Northwest Territories, and 19 years of age in the rest of the country. MAIN OUTCOMES: Current, occasional and daily smoking status; smoking frequency and intensity; and average monthly cigarette consumption. RESULTS: In comparison to age groups slightly younger than the MATS, those just older had significant and abrupt increases immediately after the MATS in the prevalence of current smokers (absolute increase: 2.71%; 95% CI 0.70% to 4.80%; P=0.009) and daily smokers (absolute increase: 2.43%; 95% CI 0.74% to 4.12%; P=0.005). Average past-month cigarette consumption within age groups increased immediately following the MATS by 18% (95% CI 3% to 39%; P=0.02). There was no evidence of significant increases in smoking intensity for daily or occasional smokers after release from MATS restrictions. CONCLUSION: The study provides relevant evidence supporting the effectiveness of Canadian MATS laws for limiting smoking among tobacco-restricted youth. PMID- 29332008 TI - Leg stereotypy syndrome: phenomenology and prevalence. AB - OBJECTIVES: To describe the phenomenology and prevalence of leg stereotypy syndrome (LSS), characterised chiefly by repetitive, rhythmical, stereotypic leg movement, especially when sitting. METHODS: We sought to characterise LSS in two groups of subjects: (1) general population (GP) group, defined as individuals accompanying patients during their visits to Baylor College of Medicine Parkinson's Disease Center and Movement Disorders Clinic who are not genetically related to the patients; and (2) movement disorders (MD) group, composed of consecutive patients with diagnoses of restless legs syndrome, Parkinson's disease, Tourette syndrome and tardive dyskinesia. RESULTS: There were 92 participants enrolled in this study; 7% of 57 individuals in the GP group and 17% of those in the MD group met the diagnostic criteria for LSS. The mean age of individuals with LSS was 44.5 (+/-11.9) years and mean age at onset of LSS was 17.5 (+/-5.7) years. In half of the individuals, the 'shaking' involved predominantly one leg. All had a positive family history of similar disorder and none had diurnal variation. The seven-item Leg Stereotypy Syndrome Questionnaire was developed as a screening tool to aid in differentiating LSS from other movement disorders. CONCLUSIONS: LSS is a common condition, occurring in up to 7% of otherwise healthy individuals, and it is even more common in patients with hyperkinetic movement disorders. Although it phenomenologically may overlap with other stereotypic disorders, we argue that it is a distinct, familial, neurological syndrome. PMID- 29332009 TI - Poststroke psychosis: a systematic review. AB - A preregistered systematic review of poststroke psychosis examining clinical characteristics, prevalence, diagnostic procedures, lesion location, treatments, risk factors and outcome. Neuropsychiatric outcomes following stroke are common and severely impact quality of life. No previous reviews have focused on poststroke psychosis despite clear clinical need. CINAHL, MEDLINE and PsychINFO were searched for studies on poststroke psychosis published between 1975 and 2016. Reviewers independently selected studies for inclusion, extracted data and rated study quality. Out of 2442 references, 76 met inclusion criteria. Average age for poststroke psychosis was 66.6 years with slightly more males than females affected. Delayed onset was common. Neurological presentation was typical for stroke, but a significant minority had otherwise 'silent strokes'. The most common psychosis was delusional disorder, followed by schizophrenia-like psychosis and mood disorder with psychotic features. Estimated delusion prevalence was 4.67% (95% CI 2.30% to 7.79%) and hallucinations 5.05% (95% CI 1.84% to 9.65%). Twelve-year incidence was 6.7%. No systematic treatment studies were found. Case studies frequently report symptom remission after antipsychotics, but serious concerns about under-representation of poor outcome remain. Lesions were typically right hemisphere, particularly frontal, temporal and parietal regions, and the right caudate nucleus. In general, poststroke psychosis was associated with poor functional outcomes and high mortality. Poor methodological quality of studies was a significant limitation. Psychosis considerably adds to illness burden of stroke. Delayed onset suggests a window for early intervention. Studies on the safety and efficacy of antipsychotics in this population are urgently needed. PMID- 29332010 TI - Oligogenic genetic variation of neurodegenerative disease genes in 980 postmortem human brains. AB - BACKGROUND: Several studies suggest that multiple rare genetic variants in genes causing monogenic forms of neurodegenerative disorders interact synergistically to increase disease risk or reduce the age of onset, but these studies have not been validated in large sporadic case series. METHODS: We analysed 980 neuropathologically characterised human brains with Alzheimer's disease (AD), Parkinson's disease-dementia with Lewy bodies (PD-DLB), frontotemporal dementia amyotrophic lateral sclerosis (FTD-ALS) and age-matched controls. Genetic variants were assessed using the American College of Medical Genetics criteria for pathogenicity. Individuals with two or more variants within a relevant disease gene panel were defined as 'oligogenic'. RESULTS: The majority of oligogenic variant combinations consisted of a highly penetrant allele or known risk factor in combination with another rare but likely benign allele. The presence of oligogenic variants did not influence the age of onset or disease severity. After controlling for the single known major risk allele, the frequency of oligogenic variants was no different between cases and controls. CONCLUSIONS: A priori, individuals with AD, PD-DLB and FTD-ALS are more likely to harbour a known genetic risk factor, and it is the burden of these variants in combination with rare benign alleles that is likely to be responsible for some oligogenic associations. Controlling for this bias is essential in studies investigating a potential role for oligogenic variation in neurodegenerative diseases. PMID- 29332011 TI - Examining the utility of cystatin C as a confirmatory test of chronic kidney disease across the age range in middle-aged and older community-dwelling adults. AB - BACKGROUND: Cystatin C has been proposed as a confirmatory test of chronic kidney disease (CKD). This is most applicable to older individuals with CKD, the majority of whom have a creatinine-based estimated glomerular filtration rate (eGFR) of 45-59 mL/min/1.73 m2 (CKD stage 3a). We sought to examine the utility of cystatin C as a confirmatory test of CKD across the age range in the general population of older adults. METHODS: Cross-sectional analysis of 5386 participants from The Irish Longitudinal Study on Ageing, a cluster-sampled national cohort of community-dwelling adults aged >=50 years. Cystatin C and creatinine were measured simultaneously using standardised assays. Using generalised additive models, we modelled the distributions of creatinine and cystatin C per year of age from four distributional parameters: location, dispersion, skewness, kurtosis. Among participants with CKD stage 3a, we estimated the predicted probability of cystatin C eGFR <60 mL/min/1.73 m2 ('confirmed CKD') as a function of age. RESULTS: Median age was 62 years, 53% were female and median cystatin C eGFR was 80 mL/min/1.73 m2. We observed progressive variability in cystatin C with increasing age. Compared with creatinine, cystatin C levels rose sharply beyond the age of 65. Among participants with CKD stage 3a (n=463), the predicted probability of 'confirmed CKD' increased steadily with age, from 15% at age 50 to 80% at age 80. CONCLUSIONS: The clinical utility of cystatin C may be maximised in middle-aged individuals, in whom the distribution of cystatin C is less variable than older adults, and the pretest probability of confirming CKD is lower. PMID- 29332013 TI - Patterns and predictors of disclosure of HIV positive status among youth living with HIV in Ibadan, Nigeria. AB - Background Information on disclosure of HIV status among youth is sparse in spite of the fact that they bear a significant burden of the HIV epidemic. Our objective was to determine the predictors of HIV disclosure among youth aged 18 35 years in Ibadan, Nigeria. Methods A cross-sectional study was conducted among youth with HIV attending two HIV support groups and one ARV clinic in Ibadan, Nigeria. Information was obtained with the aid of an interviewer-administered questionnaire. Descriptive and analytic statistics were conducted. Results There were 170 clients with a mean age of 29.6 +/- 3.9 years; 140 (82.4%) were female and 139 (81.8%) had disclosed their status. Common people first informed included respondents' mother 49 (35.3%), spouse 39 (28.1%) or father, 38 (27.3%). Disclosure to an unmarried sexual partner was low as only six (12.0%) of the 50 single youth who had a current sexual partner had disclosed their status to him/her. Youth who were aware that their spouse/partner was HIV positive (OR = 9.87; CI = 1.09-88.83) or negative (OR = 9.98; CI = 1.18-84.70) were more likely to have disclosed their status than those unaware of their spouse/partners' status. Disclosure was also higher among members of an HIV support group (OR = 3.32; CI = 1.03-10.72). Conclusions Many respondents had disclosed their status although disclosure to an unmarried sexual partner was low. Interventions to improve HIV disclosure especially among unmarried sexually active youth could improve disclosure and overall management of HIV in our study area. PMID- 29332012 TI - Classical (adiponectin, leptin, resistin) and new (chemerin, vaspin, omentin) adipocytokines in patients with prediabetes. AB - Background In the last decade, there has been an increased interest toward fat tissue as an endocrine organ that secretes many cytokines and bioactive mediators that play a role in insulin sensitivity, inflammation, coagulation and the pathogenesis of atherosclerosis. The aim of this study was to investigate classical (adiponectin, leptin, resistin) and new (chemerin, vaspin, omentin) adipocytokine levels in subjects with prediabetes [impaired fasting glucose (IFG) and/or impaired glucose tolerance (IGT)] and obese subjects with normoglycemia. Methods In this study, 80 patients with a mean age of 50.4 +/- 10.6 years were recruited, divided into two groups with similar age and body mass index (BMI) - with obesity and normoglycemia (n = 41) and with obesity and prediabetes (n = 39). Results Serum adiponectin levels were significantly higher in subjects with normoglycemia compared to patients with prediabetes. Adiponectin has a good discriminating power to distinguish between patients with and without insulin resistance in our study population [area under the curve (AUC) = 0.728, p = 0.002]. Other adipocytokine levels were not significantly different between the two groups. The patients with metabolic syndrome (MetS) had significantly lower levels of leptin compared to those without MetS (33.03 +/- 14.94 vs. 40.24 +/- 12.23 ng/mL) and this difference persisted after adjustment for weight and BMI. Receiver operating characteristic (ROC) analysis showed that low serum leptin can predict the presence of MetS (p = 0.03), AUC = 0.645. Conclusion Serum adiponectin is statistically higher in patients with normoglycemia compared to those with prediabetes and has a predictive value for distinguishing between patients with and without insulin resistance in the studied population. Serum leptin has a good predictive value for distinguishing between patients with and without MetS in the studied population. PMID- 29332014 TI - Influence of waist circumference on blood pressure status in non-obese adolescents. AB - Objectives To check whether excess in abdominal adiposity and metabolic factors were associated with blood pressure abnormalities in non-obese adolescents. Methods We randomly selected 1100 adolescent students, aged 12-18 years, from schools and classrooms in the city of Constantine, Algeria. Among them 179 were overweight and 51 were obese (IOTF criteria). Waist circumference (WC) was considered high if >74 cm in boys and 75 cm in girls (mean of WC of all population studied). Hypertension (HBP) and prehypertension (preHBP) were defined by the NHBPEP's 2004 criteria. Results The prevalence of HBP/preHBP were 13.0%/12.4% with no difference between boys and girls. The percentages of HBP/preHBP patients were 15.6%/15.6% in overweight adolescents, 5.9%/31.4% in obese adolescents and 12.9%/10.6% in adolescents with normal body weight (p < 0.0001). In obese adolescents, the prevalence of HBP was higher among boys than girls (36% vs. 27%, p = 0.002). In normal and overweight adolescents, the prevalence of HBP and preHBP was similar in boys and girls (11.9% vs. 11.0% and 14.7% vs. 12.1%); the association of WC (high vs. not high) with HBP was found in boys (16.1% vs. 8.8%, p = 0.009) but not in girls (12.1% vs. 10.2%), and with preHBP in girls (15.5% vs. 8.0%, p = 0.029) but not in boys (16.2% vs. 13.6%). Waist circumference [OR: 1.04 (1.03-1.06); p < 0.0001] and HOMA index [OR: 1.65 (1.13-2.39); p = 0.009] were associated with an increased risk of HBP. Conclusion In non-obese adolescents, a high WC, defined by values over the mean WC observed in our population, is associated with a higher risk of HBP in boys. PMID- 29332015 TI - Post-traumatic stress and growth among CPR survivors in the southeast of Iran. AB - Background Almost 7.2%-10.6% of patients survive CPR in Iran. Most of them experience post-traumatic stress disorder (PTSD) and post-traumatic growth (PTG). There are limited studies to assessing the correlation between these two psychological outcomes among CPR survivors. Objective This study aimed to examine the correlation between PTSD and PTG among CPR survivors in South-East Iran. Subjects Using Quota sampling, 163 CPR survivors in two provinces in the South East of Iran were selected to participate in this study. Method A descriptive correlational study was used to fulfill the aim of the study. The impact of Event Scale-Revised (IES-R) for assessing PTSD and Post-traumatic growth questionnaires were used to assess PTG. Results The mean score of PTSD was 39.89 and according to the cutoff point, 87.1% of participants suffered from PTSD. The mean score of PTG was 78.6. PTSD and PTG had significant negative correlation. The result of multi-variate logistic regression showed that only the PTG score predicted PTSD (Odds ratio = 0.79, CI = 0.72-0.87; and p < 0.001). The result of multi-variate linear regression indicated that PTSD, time passed since CPR, and physical disability caused by CPR predicted PTG score significantly. Conclusion This study provides CPR survivors and health care personnel with some valuable insights about cultural aspects of PTSD and PTG among CPR survivors and that PTG is positively influenced by physical disability and time passed since CPR. CPR survivors may gain positive experience and valuable insight in group meetings and discussions with their counterparts. PMID- 29332016 TI - Tribute to a giant: Emanuel Chigier, MD, 1928-2017. PMID- 29332017 TI - Insulin resistance and lung function in obese asthmatic pre-pubertal children. AB - BACKGROUND: Recent findings have supposed that the underlying association between the increased prevalence of both asthma and obesity may be insulin resistance (IR). METHODS: Insulin and glucose serum levels were analyzed to calculate the homeostatic model assessment of insulin resistance (HOMA-IR) for IR in 98 pre pubertal children. Lung function and allergy status evaluation were performed. The study population was divided into four groups: (1) obese asthmatic children (ObA); (2) normal-weight asthmatic children (NwA); (3) normal-weight non asthmatic children (Nw) and (4) obese non-asthmatic children (Ob). RESULTS: Forced expiratory volume in 1 s (FEV1) was slightly lower in obese subjects compared with normal-weight subjects and forced vital capacity (FVC) appeared lower in asthmatics, whereas between non-asthmatics subjects, it was lower in the obese group than in the normal-weight one. The post hoc analysis revealed a statistically significant reduction in FEV1, peak expiratory flow (PEF), forced expiratory flows (FEF) between 50% and 25% of the FVC (FEF50 and FEF25) between ObA and Nw and in FEV1, FVC, PEF, FEF50 and FEF25 between NwA and Nw, but no statistically significant differences of lung function parameters were observed between ObA and NwA. We found an inverse relationship between HOMA-IR and all spirometric parameters, although without any statistical significance. We also observed a significantly lower FVC in insulin-resistant children (HOMA-IR>95th percentile) (p=0.03). CONCLUSIONS: This study suggests that lung function could be early altered in obese children, already in pre-pubertal age. Although IR should not manifest its effects on lungs in pre-pubertal obese children, the prevention or treatment of obesity in the pre-pubertal period may prevent definitive negative effects on lungs. PMID- 29332018 TI - The Epidemic of Obesity. AB - No Abstract Available. PMID- 29332019 TI - A Review of the Evolution of Ayurveda in the United States. AB - No Abstract Available. PMID- 29332021 TI - The Effects of Reflexology on Fatigue and Anxiety in Patients With Multiple Sclerosis. AB - Context * Multiple sclerosis (MS) is an inflammatory, demyelinating disease of the central nervous system. In addition to the progressive nature of the disease, devastating symptoms adversely affect the patient's daily life and future expectations. This situation leads patients to seek complementary and alternative treatments. Objectives * This study was conducted to determine the effects of reflexology on fatigue severity and anxiety in patients with MS. Design * The research was a quasi-experimental, pretest-posttest design. Setting * The research was conducted at the Mavi Isiklar Rehabilitation Center of the Metropolitan Municipality of Samsun (Samsun, Turkey), in cooperation with the Faculty of Medicine's Hospital Neurology Clinic and the Health Application and Research Center at Ondokuz Mayis University (Samsun, Turkey), and with the Black Sea MS Association. Participants * Participants were patients who participated in the MS Patient School program at the center and who had been diagnosed with MS at least 1 y prior to the start of the study. Inventions * Reflexology was applied for 60 min, 30 min for each leg. Reflexology was conducted in an ergonomic and positionable bed in a special physiotherapy room within the Mavi Isiklar resting facilities. Outcome Measures * Sociodemographic data forms, a fatigue severity scale (FSS), and a state-trait anxiety inventory (STAI) were used in the data collection. Results * Fifteen patients participated in the study. The average age of the participants was determined to be 39.20 +/- 11.89 y. Before the participants received reflexology, the average FSS score was 40.06 +/- 19.27; the mean (+/-SD) STAI-S score was 50.33 +/- 9.48; and the mean (+/-SD) STAI-T score was 43.33 +/- 9.48. The average FSS score after reflexology was 27.66 +/- 21.23; the mean (+/-SD) STAI-S score was 37.53 +/- 10.11; and the mean (+/-SD) STAI-T score was 31.86 +/- 10.27. Conclusions * The study indicates that reflexology can be an effective method for reducing fatigue severity and anxiety in patients with MS. PMID- 29332022 TI - Comparative Antitussive Effects of Medicinal Plants and Their Constituents. AB - Context * The cough is a protective reflex, with 2 types, one being more sensitive to mechanical stimulation and the other to chemical stimulation, such as sulfur dioxide, ammonia, citric acid, and capsaicin. Some evidence is available that suppressant therapy is most effective when used for the short-term reduction of coughing. Today, use of herbal drugs is increasing all over the world for various ailments, including to provide antitussive activity. Objective * The study intended to review the antitussive effects of various extracts, some fractions, and some constituents of the studied medicinal plants. Design * Various databases, including the Medline, Science Direct, Scopus, and Google Scholar, were searched for studies published between 1978 and 2015, using the keywords antitussive and cough and the names of various medicinal plants and their constituents. Setting * The study took place in the districts related to Mashhad University of Medical Sciences (Mashhad, Iran). Outcome Measures * The antitussive effects of medicinal plants and their constituents were normalized to 50 mg/kg and 1 mg/mL against various cough stimulants and compared. Results * The most potent antitussive effect was observed for Nigella sativa and Linum usitatissimum on coughs induced by sulfur dioxide. Artemisia absinthium showed a higher antitussive effect on cough induced by ammonia compared with the other studied medicinal plants. The antitussive effects of Cuminum cyminum and Glycyrrhiza glabra were more potent on cough induced by citric acid than other medicinal plants. Conclusions * These results suggest the therapeutic potential of the studied medicinal plants as antitussive therapies. However, only a few clinical studies have examined the antitussive effects of medicinal plants, and more clinical studies are needed. The underlying mechanisms of the antitussive effects of medicinal plants should be also examined in further studies. PMID- 29332020 TI - Predictors of Improvements in Mental Health From Mindfulness Meditation in Stressed Older Adults. AB - Context * The benefits of a mindfulness meditation (MM) intervention are most often evidenced by improvements in self-rated stress and mental health. Given the physiological complexity of the psychological stress system, it is likely that some people benefit significantly, whereas others do not. Clinicians and researchers could benefit from further exploration to determine which baseline factors can predict clinically significant improvements from MM. Objectives * The study intended to determine (1) whether the baseline measures for participants who significantly benefitted from MM training were different from the baseline measures of participants who did not, and (2) whether a classification analysis using a decision-tree, machine-learning approach could be useful in predicting which individuals would be most likely to improve. Design * The research team performed a secondary analysis of a previously completed randomized, controlled clinical trial. Setting * The study occurred at the Oregon Health & Science University (Portland, OR, USA) and in participants' homes. Participants * Participants were 134 stressed, generally healthy adults from the metropolitan area of Portland, Oregon, who were 50 to 85 y old. Intervention * Participants were randomly assigned either to a 6-wk MM intervention group or to a waitlist control group, who received the same MM intervention after the waitlist period. Outcome Measures * Outcome measures were assessed at baseline and at 2-mo follow up intervals. A responder was defined as someone who demonstrated a moderate, clinically significant improvement on the mental health component (MHC) of the short-form health-related quality of life (SF-36) (ie, a change >=4). The MHC had demonstrated the greatest effect size in the primary analysis of the previously mentioned randomized, controlled clinical trial. Potential predictors were demographic information and baseline measures related to stress and affect. Univariate statistical analyses were performed to compare the values of predictors in the responder and nonresponder groups. In addition, predictors were chosen for a classification analysis using a decision tree approach. Results * Of the 134 original participants, 121 completed the MM intervention. As defined previously, 61 were responders and 60 were nonresponders. Analyses of the baseline measures demonstrated significant differences between the 2 groups in several measures: (1) the positive and negative affect schedule negative subscale (PANAS-neg), (2) the SF-36-MHC, and (3) the SF-36 energy/fatigue, with clinically worse scores being associated with greater likelihood of being a responder. Disappointingly, the decision-tree analyses were unable to achieve a classification rate of better than 65%. Conclusions * The differences in predictor variables between responders and nonresponders to an MM intervention suggested that those with worse mental health at baseline were more likely to improve. Decision-tree analysis was unable to usefully predict who would respond to the intervention. PMID- 29332023 TI - Autonomic Response Testing Compared With Immunoglobulin E Allergy Panel Test Results: Preliminary Report. AB - Context * Chronically ill patients who have failed standard medical assessment and therapies are often assessed by integrative medical providers for atypical manifestations of allergies as the possible source or contributing factor(s) to their condition. Skin testing and immunoglobulin E (IgE) allergy panels increase the cost of care in these patients. Objective * The objective of this study was to determine the accuracy of autonomic response testing (ART) as compared with IgE allergy panel blood tests. Design * This study was a retrospective chart review of patients who had ART and blood drawn for an IgE allergy panel at the same office visit. Outcome Measures * Sensitivity, specificity, positive predictive value, negative predictive value, overall accuracy, phi coefficient, and Cohen's kappa were calculated. Results * A total of 14 charts were reviewed. All measures of accuracy were of either useful or excellent strength. The strength of association measures of the phi coefficient and Cohen's kappa were strong. Conclusion * This first and preliminary evaluation of the allergy assessment utility of ART is very promising and reveals the need for more vigorous follow-up studies. PMID- 29332024 TI - The Effects of Apotel and Remifentanil on Postoperative Pain. AB - Context * One of the most common complications of a Caesarean section (C-section) is postoperative inflammation as well as operative and postoperative pain associated with the surgery. The control and mitigation of pain after surgery is the main goal of anesthesiologists. Objectives * This study aimed to compare the effects of intravenous apotel and remifentanil on postoperative pain control in women undergoing an elective C-section. Design * The research team designed a single-blinded, randomized clinical trial. Setting * The study was performed at the Taleghani Hospital (Arak, Iran). Participants * Potential participants were 70 patients undergoing an elective C-section. Intervention * Participants were divided randomly into 2 groups, the apotel (A) and remifentanil (R) groups, with 35 participants in each group. The participants in the A group received an infusion of 1 g of apotel to 200 cc of normal saline for 20 min, after anesthesia, the removal of their fetuses, and the clamping of their umbilical cords. The same procedure was followed for the R group (ie, the participants received an infusion of 0.5 MUg of remifentanil per kg of body weight per minute after anesthesia), removal of their fetuses, and clamping of their umbilical cords. Outcome Measures * Pain scores were measured 3 times using a visual analogue scale during the recovery period (from anesthesia and pain scores) and at 4 and 12 h after surgery after surgery. Participants' use of narcotics during the 24 h after surgery was recorded. Data analysis was done using SPSS (version 16) statistical software. Results * The pain scores of the R group were lower than those of the A group during the recovery period and a statistically significant difference existed between the pain scores of the 2 groups during that period (P = .01). No statistically significant difference existed between the groups in participants' mean use of narcotic drugs during the 24 h of surgery. Moreover, no statistically significant differences were found between the groups in participants' blood pressures or heart rates during the recovery period or at 4 and 12 h after surgery (P >= .05). Conclusion * Remifentanil can provide better postoperative pain control than apotel immediately after surgery. PMID- 29332025 TI - Prolegomena to a True Integrative Medical Paradigm. AB - When a paradigm starts to show signs of failure to cope with significant questions in any basic/applied branch of human knowledge, there come on the scene those who have perused the related literature enough to either answer those major questions according to the established paradigm or proffer a (wholly) new way of looking at things. In the latter case, the history of science tells us, a paradigm shift takes place. Modern medicine cannot be proven to be totally disconnected from its traditional roots. Where traditional medicine came to give its place to present-day conventional medicine, a number of humanistic aspects of healing, in addition to some axioms of old wisdom, were actually lost. Employing a personalized strategy by considering the patient's specific conditions, integrative medicine endeavors to apply all appropriate interventions from a whole set of science branches to bring back health. However, this does not remain fully without its own challenges from almost all sides. Complementary and alternative medicine, on the one hand, and evidence-based medicine, on the other, have their own rightful say in the affair. Delving deep into the details of medical history's ups and downs, and examining-from the philosophy of medicine's and philosophy of science's standpoints-the pros and cons of integrative medicine, this present treatise makes a systemic, interdisciplinary effort to put forward the best possible paradigmatology in a methodical way as far as the demands of society are concerned. PMID- 29332026 TI - Medicinal Plant Materials in the Treatment of Anxiety Disorders: Neurobiological Aspects. AB - Context * Pathological anxiety, which affects approximately one-third of the world population, is an inadequate, irrational reaction of an organism to the environment and to a potential threat. Despite advancements in pharmacotherapy for anxiety disorders, further studies are still necessary to search for new substances possessing the desired anxiolytic effects, with as few unwanted effects as possible. Objective * This study intended to examine the characteristics of medicinal plant materials that exhibit anxiolytic properties, with a special emphasis on the mechanisms of action of their active ingredients on the systems involved in the pathophysiology of anxiety. Design * The research team performed a review of the literature, searching well-known online scientific databases, including PubMed, Google Scholar, Medline, ScienceDirect, and SpringerLink. The team searched for the newest research from various regions of the world. Setting * The study was done in the Medical University of Silesia (Katowice, Poland). Results * The medicinal plant materials presented in the current article undoubtedly influence the central nervous system. Our analysis showed that their mechanism of action is very complicated and appropriately still enigmatic. Among them, V officinalis represents the most thoroughly investigated medicinal plant material that produces anxiolytic, sedative effects. However, extracts of other medicinal plants may also emerge as helpful in the treatment of fear and anxiety and in the prophylaxis of those disorders. Conclusions * The current review discusses the most recent data on medicinal plant materials that are effective as anxiolytic treatments, with special emphasis on the neurobiological mechanisms of action of their active ingredients. The research team hopes that the information may open up new directions in the search for drugs capable of enhancing the existing therapy. PMID- 29332027 TI - Phyllodes tumors of the breast: clinicopathological analysis of 106 cases from a single institution. AB - BACKGROUND: Phyllodes tumors (PT) are uncommon biphasic tumors, accounting for less than 1% of all breast primary neoplasms. They form a wide variety of tumors ranging from benign to malignant. Several histological features are used to grade PT into 3 categories: benign (grade I), borderline (grade II) and malignant (grade III) tumors. The aim of our study was to analyse histolopathological, radiological and clinical features of PT from an experience of a single center. METHODS: It was a retrospective study including 106 patients diagnosed with phyllodes tumors on surgical specimens at the department of pathology, of Hassan II university hospital (Fez, Morocco), from 2009 to 2016. RESULTS: The mean age was 33.81 years (range of 13-66 years), and the mean age increases with the tumor grade (mean ages of 32.32, 32.87 and 33.65 years respectively for grade I, II and III PT) (p = 0.023); 78 patients (73.58%) had benign PT, 20 (18.86%) had borderline PT and 8 (7.54%) patients were diagnosed with malignant PT. Mostly, the tumor size was <5 cm (63.2%), with BI-RADS 3 (51 patients, 48.11%). The tumor size and the radiological suspicion (ACR/BI-RADS) increased with the tumor grade (p < 0.001). Mitosis count, cellular atypia and stromal cellularity increased with the tumor grade (p < 0.001). Also, the presence of necrosis is associated with malignant PT (p < 0.001). Before surgery, patients had undergone core needle biopsies (CNB) for diagnostic purpose, and the overral sensitivity of this diagnostic procedure was 71.83%. The sentivity of the CNB decreased from grade I PT to grade III PT (from 56.81% to 37.5%), however its specificity increased from grade I to grade III PT (from 59.25% to 100%). CONCLUSION: Phyllodes tumors of the breast are rare neoplasms with a wide range of clinicopathologic presentations. The core needle biopsy has a good diagnostic sensitivity compared to definitive diagnosis on surgical specimens. There was a statistically significant association between the histological grade of PT and tumor size, radiological suspicion, mitotic count, cellular atypia, stromal cellularity, and tumor necrosis. PMID- 29332028 TI - Possible erythrocyte contributions to and exacerbation of the post-thrombolytic no-reflow phenomenon. AB - BACKGROUND: Reperfusion injury often occurs with therapeutic intervention addressing the arterial occlusions causing acute myocardial infarction and stroke. The no-reflow phenomenon has been ascribed to leukocyte plugging and blood vessel constriction in the microcirculation. OBJECTIVE: To assess possible red cell contributions to post-thrombolytic no-reflow phenomenon. METHODS: Blood clots were formed by recalcifying 1 ml of citrated fresh human venous blood and then lysed by adding 1,000 units of streptokinase (SK) at several intervals within 1 hour. Red cell deformability was tested by both a microscopic photometric and a filtration technique, viscosity by a cone and plate viscometer, and erythrocyte aggregation by an optical aggregometer. RESULTS: Two sampling methods were devised for the microscopic photometric test, both of which indicated increases of erythrocyte stiffness after being lysed from the clot by SK. In accompanying experiments, the viscosity, aggregation and filterability of the post-lytic erythrocytes were assessed. Results indicated increased viscosity in Ringer's, decreased aggregation index and filterability through a 5 MUm pore size Nuclepore membrane. CONCLUSION: Findings demonstrated that post-lytic changes in red cell deformability do occur which could contribute to the no reflow phenomenon. PMID- 29332029 TI - Biomechanical effects of USS fixation with different screw insertion depths on the vertebrae stiffness and screw stress for the treatment of the L1 fracture. AB - OBJECTIVE: To evaluate the biomechanical effects of internal fixation with different screw insertion depths on vertebrae stiffness and screw stress for L1 fracture. METHODS: The established L1 fracture was fixed with 10 different depths of screw insertion: 10-100% screw-path length (SPL). Loading on the T12 endplate was simulated. RESULTS: Screws inserted to 60-100% depths has a higher axial displacement of screw against injured vertebrae and maximum stress of screws compared to those of screws inserted to 30-50% depths and 10-20% (P< 0.05). No significant difference was noted among 60-100% SPL groups. Under single loading condition, the incidence rate of maximum stress of each screw ranged from 16.7 50.0%. Chi-square test showed superior screw has a higher incidence rate of maximum stress than inferior screw (P< 0.05). CONCLUSIONS: Screws inserted to 60% depth or more can achieve effective strength to withstand the postoperative height correction loss of the L1 vertebrae fracture. However, continuous prolonged depth of screw insertion did not significantly increase the effective strength of the screw against injured vertebrae and maximum equivalent stress of screws. The incidence rate of the maximum stress of each screw in correlated with position of screw insertion but not associated with the screw insertion depth. PMID- 29332030 TI - What is a more effective method of cranio-cervical flexion exercises? AB - BACKGROUND: Cranio-cervical flexion exercise (CCFE) is a representative exercise that activates the deep muscles of neck pain patients. However, there is a lack of studies that propose specific exercise methods to examine the more effective activity level of the deep cervical flexor. OBJECTIVE: The objective of this study is to propose a more effective exercise method through effect comparison based on an optimal degree of mouth-opening, a mouth-open versus mouth-closed position, eye gaze, and body position change during CCFE. METHODS: As a result of examining the optimal degree of mouth-opening during CCFE using a pressure biofeedback unit with 50 subjects conforming to a selection standard, sternocleidomastoid muscle activity was examined. An optimal degree of mouth opening during CCFE was examined as well. In addition, muscle thickness and muscle activity were measured based on eye gaze. Then, the effect of the exercise based on body position was examined. RESULTS: The lowest sternocleidomastoid activity was presented at a mouth-opening of 20 mm. A significant difference was presented in sternocleidomastoid and longus colli muscle activity at a mouth opening of (p< 0.05). The eye gaze of 45? below presented the lowest sternocleidomastoid activity. CONCLUSIONS: The results suggest a new type of exercise method with the accompaniment of an optimal degree of mouth-opening of (20 mm), along with an eye gaze of 45? below, and an exercise method in the seated position without spatial restriction in order to increase the effect of CCFE, one of the conventional neck stabilization exercise methods. PMID- 29332031 TI - Difference of the thickness and activation of trunk muscles during static stoop lift at different loads between subjects with and without low back pain. AB - BACKGROUND: Patients suffering from low back pain (LBP) have been reported to alter muscle contraction strategies. OBJECTIVE: To compare activity and thickness of the trunk muscles (external oblique (EO), internal oblique (IO), transversus abdominis (TrA), and lumbar multifidus (LM)) during static stoop lift at different lifting loads between the subjects with and without LBP. METHODS: Twenty eight subjects with LBP and twenty eight healthy subjects were recruited. The stoop lifting was performed in three conditions in 0%, 10%, and 20% of body weight. RESULTS: The activity of EO (F= 9.513) and IO (F= 7.781) was significantly increased with increasing lifting loads in subjects with LBP (p< 0.05) but not significantly in subjects without LBP. The activity of the LM (F= 124.980) was significantly increased in response to lifting loads in both groups (p< 0.05). The percent change of TrA (F= 8.797) and LM (F= 48.170) muscles thickness was significantly increased with increasing lifting loads in both groups (p< 0.05). The percent change of TrA (F= 3.780) and LM (F= 16.314) muscles thickness in subjects without LBP was greater than those in subjects with LBP at all three lifting loads (p< 0.05). CONCLUSIONS: The results of this study suggest that more activation of EO in subjects with LBP may contribute to increase the compressive force on the lumbar spine during stoop lift. Also, less activation of TrA and LM in subjects with LBP may contribute to decrease the lumbar stabilization during stoop lift. PMID- 29332032 TI - Value of conventional MRI and diffusion tensor imaging parameters in predicting surgical outcome in patients with degenerative cervical myelopathy. AB - BACKGROUND: In addition to conventional magnetic resonance imaging (cMRI), diffusion tensor imaging (DTI) has been investigated as a potential diagnostic and prognostic tool for patients with degenerative cervical myelopathy (DCM). OBJECTIVE: To assess the efficacy of cMRI and DTI parameters in prediction of surgical outcome in DCM patients. METHODS: One hundred and forty-two patients with DCM who underwent presurgical cMRI and DTI of the cervical spine were included. Quantitative parameters obtained by cMRI included compression ratio (CR), transverse area (TA), and signal intensity ratio (SIR). DTI was evaluated for apparent diffusion coefficient (ADC) and fractional anisotropy (FA). The Japanese Orthopaedic Association (JOA) score and recovery rate were used to evaluate clinical outcomes. A JOA recovery rate < 50% was defined as a poor surgical outcome. The relationship of surgical outcome with various imaging parameters was examined. Receiver operating characteristic (ROC) curves were used to measure the predictive ability and determine the best cut-off values of the quantitative parameters. RESULTS: By ROC curve analyses of imaging parameters, the largest area under the ROC curve (AUC) was for FA (0.750), followed by ADC (0.719), TA (0.716), SIR (0.673), and CR (0.591). The cut-off values with the best compromise between sensitivity and specificity were set at 0.390 for FA, 1.344 * 10-3 mm2/s for ADC, 46.02 mm2 for TA, 1.556 for SIR, and 26.56% for CR. Multivariate logistic regression model revealed that JOA score ? 8 points, TA ? 46.02 mm2, and FA ? 0.390 were independently associated with poor surgical outcome. The AUC value for the three-predictor model was 0.871, indicating strong predictive discrimination, and was significantly higher than the AUC value for the model containing only the JOA score (0.763; P= 0.003). CONCLUSIONS: JOA score is a reasonable predictor of surgical outcome in DCM. However, a model inclusive of TA and FA provides superior predictive ability. Thus, quantitative analysis of cMRI and DTI is useful for predicting surgical outcome in DCM. PMID- 29332033 TI - Effect of dual tasking on anticipatory and compensatory postural adjustments in response to external perturbations in individuals with nonspecific chronic low back pain: Electromyographic analysis. AB - BACKGROUND: In patients with chronic low back pain (CLBP), postural control is a demanding task in terms of attention. Although the attentional demands of postural control have been investigated in these patients, the attentional demands of postural recovery during dual task performance have not been evaluated in patients with nonspecific CLBP. OBJECTIVE: To investigate the effect of dual tasking on anticipatory and compensatory postural adjustments in response to an external perturbation in patients with nonspecific CLBP. METHODS: Twenty-five patients with nonspecific CLBP of at least 3 months' duration and 25 healthy persons were exposed to predictable and unpredictable external perturbations. The attentional demands of postural adjustments were evaluated while participants simultaneously performed a cognitive task. Onset latency and integrated electromyographic activity of the trunk and leg muscles were compared between dual task (postural recovery and backward digit span memory) and single task conditions (postural recovery only). RESULTS: The results showed delayed activation of the tibialis anterior (agonist) and early activation of the gastrocnemius (antagonist) muscles during the dual task in patients with nonspecific CLBP compared to healthy participants. Integrated electromyographic activity was significantly greater in the dual task than the single task condition in the gastrocnemius (antagonist) muscle in patients with nonspecific CLBP compared to healthy persons during unpredictable perturbations. CONCLUSION: The impaired ankle muscle activities during a cognitive task suggest that postural control recovery following external perturbation requires attentional resources in patients with nonspecific CLBP. This may increase the risk of re injury in people with nonspecific CLBP while they perform an attentionally demanding task in more difficult circumstances. PMID- 29332034 TI - Microhemodynamic indices to evaluate the effectiveness of herbal medicine in diabetes: A comparison between alpha-mangostin and curcumin in the retina of type 2 diabetic rats. AB - OBJECTIVE: This study was aimed to develop microhemodynamic indices to evaluate the effectiveness of herbal medicine in diabetic tissues. METHODS: Male Sprague Dawley rats were divided into four groups: normal control rats (Control), type 2 diabetic rats without (DM2) and with supplementation of alpha mangostin (DM2-MG) or curcumin (DM2-CUR). Alpha-mangostin or curcumin (200 mg/kg BW) were fed followed by i.p. injection of streptozotocin (STZ). Mean arterial pressure (MAP) and retinal blood flow (RBF) were measured and retinal flow resistance (RFR) was calculated. Three indices were developed to evaluate the effectiveness of herbal medicines in RFR-MAP diagram based on experimental data of MAP and RFR in type 2 diabetic rats. These indices are alpha, beta, and gamma where alpha is a ratio of reduction in MAP, beta is a ratio of reduction in RFR increasing with MAP increase, and gamma indicates a ratio of reduction in RFR. RESULTS: The elevated MAP and RFR and decreased RBF were observed in DM2 rats.Interestingly, alpha mangostin or curcumin supplementation significantly increased RBF while decreased MAP and RFR. Using alpha, beta and gamma indices, it was found that alpha mangostin is more effective than curcumin in type 2 diabetic retina. CONCLUSIONS: These microhemodynamic indices may be useful to compare various herbal medicines in different tissues. PMID- 29332035 TI - An Aspartyl Cathepsin Targeted PET Agent: Application in an Alzheimer's Disease Mouse Model. AB - BACKGROUND: Early detection of Alzheimer's disease (AD) pathology is a serious challenge for both diagnosis and clinical trials. The aspartyl protease, Cathepsin D (CatD), is overexpressed in AD and could be a biomarker of disease. We have previously designed a unique contrast agent (CA) for dual-optical and magnetic resonance imaging of the activity of the CatD class of enzymes. OBJECTIVE: To compare the uptake and retention of a novel, more sensitive, and clinically-translatable 68Ga PET tracer targeting CatD activity in 5XFAD mice and non-Tg littermates. METHODS: The targeted CA consisted of an HIV-1 Tat cell penetrating peptide (CPP) conjugated to a specialized cleavage sequence targeting aspartyl cathepsins and a DOTA conjugate chelating 68Ga. PET images were acquired using a Siemens Inveon preclinical microPET in female Tg AD mice and non-Tg age matched female littermates (n = 5-8) following intravenous CA administration at 2, 6, and 9 months of age. Additionally, 18F fluorodeoxyglucose (FDG) PET imaging was performed at 10 months to measure glucose uptake. RESULTS: The Tg mice showed significantly higher relative uptake rate of the targeting CA in the forebrain relative to hindbrain at all ages compared to controls, consistent with histology. In contrast, no differences were seen in CA uptake in other organs. Additionally, the Tg mice did not show any differences in relative uptake of FDG at 10 months of age in the forebrain relative to the hindbrain compared to age matched non-Tg controls. CONCLUSIONS: Elevated aspartryl cathepsin activity was detected in vivo in the 5XFAD mouse model of AD using a novel targeted PET contrast agent. PMID- 29332036 TI - Relationships Between Lower Olfaction and Brain White Matter Lesions in Elderly Subjects with Mild Cognitive Impairment. AB - BACKGROUND: Olfactory impairment is reported in mild cognitive impairment (MCI) and Alzheimer's disease (AD) and is associated with hippocampal atrophy. In elderly people, dementia with AD neuropathology and white matter lesions (WML) is common. In this context, olfactory impairment could also depend on the presence of WML. OBJECTIVE: To assess the cross-sectional relationship between olfaction and WML in elderly subjects with MCI. METHODS: Consecutive subjects, >65 years old, diagnosed as MCI after a comprehensive neuropsychological assessment in an expert memory center, with a brain MRI performed within a year and without major depressive state, were included. Olfaction was assessed by the Brief Smell Identification Test (BSIT). Two trained neuroradiologists, blind to cognitive and olfaction status, visually assessed hippocampal atrophy according to Scheltens' scale and WML according to Fazekas criteria. RESULTS: Seventy-five MCI subjects (mean age (SD) = 77.1 (6.2) years, 74.7% of women) were included. After adjustment for age and sex, factors associated with low BSIT scores were older age (p = 0.007), lower BMI (p = 0.08), lower MMSE score (p = 0.05), lower FCRST (p = 0.008), hippocampal atrophy (p = 0.04), periventricular WML (p = 0.007), and deep WML burden (p = 0.005). In multivariate analysis, severe deep WML (OR (95% CI) = 6.29 (1.4-35.13), p = 0.02) remained associated with low BSIT score independently from hippocampal atrophy. CONCLUSION: In elderly MCI subjects, low olfactory performances are associated with WML, whose progression may be slowed by vascular treatments. A longitudinal study to evaluate whether the progression of WML, hippocampal atrophy and low olfactory function, can predict accurately conversion from MCI to dementia is ongoing. PMID- 29332038 TI - Sex Influences the Accuracy of Subjective Memory Complaint Reporting in Older Adults. AB - Subjective memory complaints (SMC) are required when diagnosing amnestic mild cognitive impairment (aMCI), although their relationship with objective memory performance and Alzheimer's disease (AD) pathology remains unclear. We investigated whether the sex of the patient/participant moderates these associations. Participants were 940 normal control (NC) and aMCI participants from the Alzheimer's Disease Neuroimaging Initiative. SMC were assessed via the memory scale of the Everyday Cognition questionnaire. Discrepancy scores were calculated between self- and informant-reports and categorized into "overestimates," "comparable estimates", and "underestimates" of SMC. We conducted linear and logistic regressions to examine the interaction of sex with self- and informant-reported SMC and discrepancy group on the Rey Auditory Verbal Learning Test (RAVLT) Immediate and Delayed Recall and on PET measures of amyloid beta (Abeta) positivity. Diagnosis-stratified analyses were also conducted. Overall, there were sex by self- and informant-reported SMC interactions for Immediate and Delayed Recall. Despite a higher proportion of "overestimates" in women, greater self- and informant-reported SMC showed a stronger relationship to poorer RAVLT scores in women versus men. Diagnosis-stratified analyses revealed that results were driven by aMCI participants. Conversely, overall, greater self- and informant-reported SMC related to greater odds of Abeta positivity regardless of sex. In diagnosis-stratified analyses, only informant-reported SMC related to Abeta positivity in aMCI. Relative to "comparable estimates," "underestimates" of SMC were associated with poorer RAVLT scores across sexes in the overall sample and in aMCI. The predictive utility of self-report SMC may be limited to women in aMCI. Sex differences should be considered when evaluating SMC. PMID- 29332037 TI - Increased Vulnerability of the Hippocampus in Transgenic Mice Overexpressing APP and Triple Repeat Tau. AB - Alzheimer's disease (AD) is the most common tauopathy, characterized by progressive accumulation of amyloid-beta (Abeta) and hyperphosphorylated tau. While pathology associated with the 4-repeat (4R) tau isoform is more abundant in corticobasal degeneration and progressive supranuclear palsy, both 3R and 4R tau isoforms accumulate in AD. Many studies have investigated interactions between Abeta and 4R tau in double transgenic mice, but few, if any, have examined the effects of Abeta with 3R tau. To examine this relationship, we crossed our APP751 mutant line with our recently characterized 3R tau mutant model to create a bigenic line (hAPP-3RTau) to model AD neuropathology. Mice were analyzed at 3 and 6 months of age for pathological and behavioral endpoints. While both the 3RTau and the hAPP-3RTau mice showed neuronal loss, increased tau aggregation, Abeta plaques and exhibited more behavioral deficits compared to the non-tg control, the bigenic mice often displaying relatively worsening levels. We found that even in young animals we found that the presence of APP/Abeta increased the accumulation of 3R tau in the neocortex and hippocampus. This observation was accompanied by activation of GSK3 and neurodegeneration in the neocortex and CA1 region. These results suggest that in addition to 4R tau, APP/Abeta may also enhance accumulation of 3R tau, a process which may be directly relevant to pathogenic pathways in AD. Our results demonstrate that this bigenic model closely parallels the pathological course of AD and may serve as a valuable model for testing new pharmacological interventions. PMID- 29332039 TI - Alzheimer's Disease rs11767557 Variant Regulates EPHA1 Gene Expression Specifically in Human Whole Blood. AB - Large-scale genome-wide association studies have reported EPHA1 rs11767557 variant to be associated with Alzheimer's disease (AD) risk in the European population. However, it is still unclear how this variant functionally contributes to the underlying disease pathogenesis. The rs11767557 variant is located approximately 3 kb upstream of EPHA1 gene. We think that rs11767557 may modify the expression of nearby genes such as EPHA1 and further cause AD risk. Until now, the potential association between rs11767557 and the expression of nearby genes has not been reported in previous studies. Here, we evaluate the potential expression association between rs11767557 and EPHA1 using multiple large-scale eQTLs datasets in human brain tissues and the whole blood. The results show that rs11767557 variant could significantly regulate EPHA1 gene expression specifically in human whole blood. These findings may further provide important supplementary information about the regulating mechanisms of rs11767557 variant in AD risk. PMID- 29332040 TI - Synthetic Fragment of Receptor for Advanced Glycation End Products Prevents Memory Loss and Protects Brain Neurons in Olfactory Bulbectomized Mice. AB - Activation of receptor for advanced glycation end products (RAGE) plays an essential role in the development of Alzheimer's disease (AD). It is known that the soluble isoform of the receptor binds to ligands and prevents negative effects of the receptor activation. We proposed that peptide fragments from RAGE prevent negative effects of the receptor activation during AD neurodegeneration. We have synthesized peptide fragments from surface-exposed regions of RAGE. Peptides were intranasally administrated into olfactory bulbectomized (OBX) mice, which developed some characteristics similar to AD neurodegeneration. We have found that only insertion of fragment (60-76) prevents the memory of OBX mice. Immunization of OBX mice with peptides showed that again only (60-76) peptide protected the memory of animals. Both intranasal insertion and immunization decreased the amyloid-beta (Abeta) level in the brain. Activity of shortened fragments of (60-76) peptide was tested and showed only the (60-70) peptide is responsible for manifestation of activity. Intranasal administration of (60-76) peptide shows most protective effect on morpho-functional characteristics of neurons in the cortex and hippocampal areas. Using Flu-(60-76) peptide, we revealed its penetration in the brain of OBX mice as well as colocalization of Flu-labeled peptide with Abeta in the brain regions in transgenic mice. Flu-(60 76) peptide complex with trimer of Abeta was detected by SDS-PAGE. These data indicate that Abeta can be one of the molecular target of (60-70) peptide. These findings provide a new peptide molecule for design of anti-AD drug and for investigation of RAGE activation ways in progression of AD neurodegeneration. PMID- 29332041 TI - In Vivo Visualization of Tau Accumulation, Microglial Activation, and Brain Atrophy in a Mouse Model of Tauopathy rTg4510. AB - BACKGROUND: Tau imaging using PET is a promising tool for the diagnosis and evaluation of tau-related neurodegenerative disorders, but the relationship among PET-detectable tau, neuroinflammation, and neurodegeneration is not yet fully understood. OBJECTIVE: We aimed to elucidate sequential changes in tau accumulation, neuroinflammation, and brain atrophy by PET and MRI in a tauopathy mouse model. METHODS: rTg4510 transgenic (tg) mice expressing P301L mutated tau and non-tg mice were examined with brain MRI and PET imaging (analyzed numbers: tg = 17, non-tg = 13; age 2.5~14 months). As PET probes, [11C]PBB3 (Pyridinyl Butadienyl-Benzothiazole 3) and [11C]AC-5216 were used to visualize tau pathology and 18-kDa translocator protein (TSPO) neuroinflammation. Tau pathology and microglia activation were subsequently analyzed by histochemistry. RESULTS: PET studies revealed age-dependent increases in [11C]PBB3 and [11C]AC-5216 signals, which were correlated with age-dependent volume reduction in the forebrain on MRI. However, the increase in [11C]PBB3 signals reached a plateau at age 7 months, and therefore its significant correlation with [11C]AC-5216 disappeared after age 7 months. In contrast, [11C]AC-5216 showed a strong correlation with both age and volume reduction until age 14 months. Histochemical analyses confirmed the relevance of pathological tau accumulation and elevated TSPO immunoreactivity in putative microglia. CONCLUSION: Our results showed that tau accumulation is associated with neuroinflammation and brain atrophy in a tauopathy mouse model. The time-course of the [11C]PBB3- and TSPO-PET finding suggests that tau deposition triggers progressive neuroinflammation, and the sequential changes can be evaluated in vivo in mouse brains. PMID- 29332043 TI - Serum Non-Ceruloplasmin Non-Albumin Copper Elevation in Mild Cognitive Impairment and Dementia due to Alzheimer's Disease: A Case Control Study. AB - Several studies showed high serum copper levels in Alzheimer's disease (AD). The present study applied a newly developed method to detect serum copper free from proteins (free-Cu). Forty-four patients affected by dementia due to AD, thirty six patients affected by mild cognitive impairment (MCI) due to AD, and twenty eight healthy controls underwent clinical, cognitive, and MRI assessment. The new method showed higher free-Cu concentrations in MCI and dementia due to AD compared to controls (p < 0.0001). No correlation between copper levels, cognitive or MRI measures were found. PMID- 29332044 TI - Does the Genetic Feature of the Chinese Tree Shrew (Tupaia belangeri chinensis) Support Its Potential as a Viable Model for Alzheimer's Disease Research? AB - Alzheimer's disease (AD) is a neurodegenerative disease with increasing incidence across the world and no cure at the present time. An ideal animal model would facilitate the understanding of the pathogenesis of AD and discovery of potential therapeutic targets. The Chinese tree shrew (Tupaia belangeri chinensis) has a closer genetic affinity to primates relative to rodents, and can attain ages of 8 years or older, which represents another advantage for the study of neurodegenerative diseases such as AD compared to primates. Here, we analyzed 131 AD-related genes in the Chinese tree shrew brain tissues based on protein sequence identity, positive selection, mRNA, and protein expression by comparing with those of human, rhesus monkey, and mouse. In particular, we focused on the Abeta and neurofibrillary tangles formation pathways, which are crucial to AD pathogenesis. The Chinese tree shrew had a generally higher sequence identity with human than that of mouse versus human for the AD pathway genes. There was no apparent selection on the tree shrew lineage for the AD-related genes. Moreover, expression pattern of the Abeta and neurofibrillary tangle formation pathway genes in tree shrew brain tissues resembled that of human brain tissues, with a similar aging-dependent effect. Our results provided an essential genetic basis for future AD research using the tree shrew as a viable model. PMID- 29332045 TI - The Uniform Data Set, Czech Version: Normative Data in Older Adults from an International Perspective. AB - BACKGROUND: Outside of the United States, international perspectives on normative data for neuropsychological test performance, within diverse populations, have been scarce. The neuropsychological test battery from the Uniform Data Set (UDS) of the Alzheimer's Disease Centers (ADC) program of the United States National Institute on Aging (NIA) is one of the most sensitive batteries for the evaluation of both normal cognitive aging and pathological cognitive decline. OBJECTIVE: This study aimed to determine the feasibility of the Czech Neuropsychological Test Battery from the Uniform Data Set (UDS-Cz 2.0), while also evaluating the results obtained from an international perspective. METHODS: This paper describes data from 520 cognitively normal participants. Regression analyses were used to describe the influence of demographic variables on UDS-Cz test performance. RESULTS: Cognitive performance on all measures declined with age, with patient education level serving as a protective factor. Therefore, the present study provides normative data for the UDS-Cz, adjusted for the demographic variables of age and education. CONCLUSION: The present study determines the psychometric properties of the UDS-Cz and establishes normative values in the aging Czech population, which can be used in clinical settings. PMID- 29332046 TI - A Novel Antibody Targeting Tau Phosphorylated at Serine 235 Detects Neurofibrillary Tangles. AB - Alzheimer's disease is characterized by two main pathological hallmarks in the human brain: the extracellular deposition of amyloid-beta as plaques and the intracellular accumulation of the hyperphosphorylated protein tau as neurofibrillary tangles (NFTs). Phosphorylated tau (p-tau) specific-antibodies and silver staining have been used to reveal three morphological stages of NFT formation: pre-NFTs, intraneuronal NFTs (iNFTs), and extraneuronal NFTs (eNFTs). Here we characterize a novel monoclonal antibody, RN235, which is specific for tau phosphorylated at serine 235, and detects iNFTs and eNFTs in brain tissue, suggesting that phosphorylation at this site is indicative of late stage changes in tau. PMID- 29332042 TI - Protective Effects of Indian Spice Curcumin Against Amyloid-beta in Alzheimer's Disease. AB - The purpose of our article is to assess the current understanding of Indian spice, curcumin, against amyloid-beta (Abeta)-induced toxicity in Alzheimer's disease (AD) pathogenesis. Natural products, such as ginger, curcumin, and gingko biloba have been used as diets and dietary supplements to treat human diseases, including cancer, cardiovascular, respiratory, infectious, diabetes, obesity, metabolic syndromes, and neurological disorders. Products derived from plants are known to have protective effects, including anti-inflammatory, antioxidant, anti arthritis, pro-healing, and boosting memory cognitive functions. In the last decade, several groups have designed and synthesized curcumin and its derivatives and extensively tested using cell and mouse models of AD. Recent research on Abeta and curcumin has revealed that curcumin prevents Abeta aggregation and crosses the blood-brain barrier, reach brain cells, and protect neurons from various toxic insults of aging and Abeta in humans. Recent research has also reported that curcumin ameliorates cognitive decline and improves synaptic functions in mouse models of AD. Further, recent groups have initiated studies on elderly individuals and patients with AD and the outcome of these studies is currently being assessed. This article highlights the beneficial effects of curcumin on AD. This article also critically assesses the current limitations of curcumin's bioavailability and urgent need for new formulations to increase its brain levels to treat patients with AD. PMID- 29332047 TI - Sally-Anne Test in Patients with Alzheimer's Disease Dementia. AB - Social cognition has recently been recognized as one of the essential cognitive domains. Some reports suggested that patients with Alzheimer's disease dementia (ADD) presented significant theory of mind deficits even in the mild condition. However, most previous studies included only small numbers of patients with ADD. The present study administered the first-order false belief (Sally-Anne) test to 116 consecutive patients with ADD from the outpatient units of the Memory Clinic and compared the characteristics of the two groups with correct and incorrect answers on the test. Then various clinical characteristics were evaluated. Only 37.1% of patients with ADD correctly answered the Sally-Anne test with the right explanation. Comparison between the two groups of correct and incorrect answers revealed a significant association between the frontal assessment battery score and the result of the Sally-Anne test in the multiple logistic regression analyses. Thus, patients with ADD presented a significant deficit in social cognition even in the mild condition. Frontal dysfunction was thought to be related to the deficits in mild ADD. PMID- 29332048 TI - Frequency of Cardiovascular Genetic Risk Factors in a Calabrian Population and Their Effects on Dementia. AB - BACKGROUND: Several genetic variants playing a key role in cholesterol levels, blood pressure, and vascular dysfunction influence the risk of Alzheimer's disease (AD) and vascular dementia (VaD). The many meta-analysis studies carried out on large numbers of samples in different populations have not provided clear results to date, because a trans-ethnic shift of risk genotypes in different populations is often observed. OBJECTIVES: To determine genotypes allele frequencies of the polymorphisms most frequently identified to be correlated with cardio-cerebrovascular disease and AD in a Southern Italy population and to investigate their possible association with dementia. METHODS: The genotype and allele frequencies of 13 cardio-cerebrovascular risk polymorphisms were assessed and their possible association with dementia was investigated in a case-control study, including 221 consecutive unrelated subjects diagnosed with dementia (120 subjects affected by AD, 55 by frontotemporal dementia, and 33 by vascular dementia) and 218 matched controls of Calabrian origin. RESULTS: Carriers of at least one APOEE4 allele resulted to be at higher risk of AD [OR(95% CI) = 2.721(1.477-5.011)] and VaD [OR(95% CI) = 6.205(2.356-16.342)] compared to non carriers. Individuals with the IV genotype of the CETP polymorphism were more likely to have AD [OR(95% CI) = 2.427(1.364-4.319)] and VaD [OR(95% CI) = 3.649(1.455-9.152)] compared to subjects with the II-VV genotypes. CONCLUSION: CETP I405V polymorphism is likely a risk factor for AD and VaD in our cohort, independent of APOEE4 status. Unmodifiable genetic risk factors should be taken into account to promote a healthy lifestyle to prevent dementia. PMID- 29332049 TI - Free Heme and Amyloid-beta: A Fatal Liaison in Alzheimer's Disease. AB - While the etiology of Alzheimer's disease (AD) is still unknown, an increased formation of amyloid-beta (Abeta) peptide and oxidative processes are major pathological mechanism of the disease. The interaction of Abeta with free heme leads to the formation of peroxidase-active Abeta-heme complexes. However, enzyme kinetic data and systematic mutational studies are still missing. These aspects were addressed in this study to evaluate the role of Abeta-heme complexes in AD. The enzyme-kinetic measurements showed peroxidase-specific pH- and H2O2 dependencies. In addition, the enzymatic activity of Abeta-heme complexes constantly increased at higher peptide excess. Moreover, the role of the Abeta sequence for the named enzymatic activity was tested, depicting human-specific R5, Y10, and H13 as essential amino acids. Also by studying Y10 as an endogenous peroxidase substrate for Abeta-heme complexes, ratio-specific effects were observed, showing an optimal dityrosine formation at an about 40-fold peptide excess. As dityrosine formation promotes Abeta fibrillation while free heme disturbs protein aggregation, we also investigated the effect of Abeta-heme complex-derived peroxidase activity on the formation of Abeta fibrils. The fluorescence measurements showed a different fibrillation behavior at strong peroxidase activity, leading also to altered fibril morphologies. The latter was detected by electron microscopy. As illustrated by selected in vivo measurements on a mouse model of AD, the disease is also characterized by Abeta-derived microvessel destructions and hemolytic processes. Thus, thrombo-hemorrhagic events are discussed as a source for free heme in brain tissue. In summary, we suggest the formation and enzymatic activity of Abeta-heme complexes as pathological key features of AD. PMID- 29332050 TI - Supplemental Retinal Carotenoids Enhance Memory in Healthy Individuals with Low Levels of Macular Pigment in A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. AB - BACKGROUND: There is a biologically plausible rationale whereby the dietary carotenoids lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ), which are collectively referred to as macular pigment (MP) in the central retina (macula), support the maintenance of cognition via their antioxidant and anti-inflammatory properties. OBJECTIVE: To investigate the impact of supplemental L, Z, and MZ on memory, executive function, and verbal fluency among healthy individuals with low MP levels. METHODS: In this double-blind, placebo-controlled, randomized clinical trial, subjects (n = 91; mean+/-SD age = 45.42+/-12.40; % male = 51.6) consumed a daily formulation of 10 mg L, 10 mg MZ, and 2 mg Z (n = 45) or placebo (n = 46) for 12 months. Cognitive domains assessed included verbal and visual learning, immediate and delayed memory, executive function, and verbal fluency. MP and serum carotenoid concentrations of L, Z, and MZ were also measured. RESULTS: Following 12-month supplementation, individuals in the active group exhibited statistically significant improvements in memory when compared to the placebo group (paired associated learning [PAL] memory score [rANOVA, p = 0.009]; PAL errors [rANOVA, p = 0.017]). Furthermore, the observed reduction in the number of errors made in the PAL task among those in the intervention group was positively and significantly related to observed increases in MP volume (p = 0.005) and observed increases in serum concentrations of L (p = 0.009). CONCLUSION: This randomized, double-blind, placebo-controlled clinical trial demonstrates a memory enhancing effect of daily supplementation with L, Z, and MZ in healthy subjects with low MP at baseline. The implications of these findings for intellectual performance throughout life, and for risk of cognitive decline in later life, warrant further study. PMID- 29332051 TI - The Impact of Music on the Self in Dementia. AB - In this review, we consider how the onset and progression of dementia can disrupt one's sense of self, and propose that music is an ideal tool for alleviating this distressing symptom. Various aspects of the self can be impaired in people with dementia, depending on how the self is defined. There are anecdotal reports that music can 'bring people back to themselves' in the face of dementia, but there have been scarce empirical investigations of this topic. Motivated by a consideration of the existing literature, we outline a novel theoretical framework that accounts for the relationship between music and the self in people with dementia. We propose that music has a number of 'design features' that make it uniquely equipped to engage multiple aspects of the self. We suggest that each design feature interacts with different aspects of the self to varying degrees, promoting overall wellbeing. We discuss how existing research on music and dementia fits within this framework, and describe two case studies in which music was an ideal stimulus for reaffirming their sense of self. Our framework may be useful for the diagnosis and treatment of impairments of self in people with dementia, and highlights how music, given its ability to engage all aspects of the self simultaneously, can result in an overall enhanced sense of self. PMID- 29332052 TI - When Art Meets Gardens: Does It Enhance the Benefits? The Nancy Hypothesis of Care for Persons with Alzheimer's Disease. AB - The creation of healing gardens for persons with Alzheimer's disease and related diseases (ADRD) offers vast potential. They can play a role in the scaffolding of cognitive disorders, emotional stress, sensory processing, sense of harmony, and appeasement. These effects are achieved through a distributed interplay of psychological functions with the immediate environment and local culture on the one hand, and dialogue on the other. The garden, a natural canvas created by man, shares with art the ability to foster an esthetic sense for which the perception can be measured by functional neurological imaging exploration. Art represents a mediator for the collaborative realization of distributed psychological functions between different individuals. Based on the hypothesis of an optimization of the therapeutic potential of a garden by a design adapted to the neuro-psycho-social and cultural specificities of its users combined with the thoughtful introduction of an artistic dimension, the "art, memory and life" healing garden was created at the University Hospital of Nancy as a prototype for persons with ADRD. The design concept was based on two hypotheses that we formulate herein, discuss their theoretical foundation, and suggest enhanced design for therapeutic gardens based upon our experience. PMID- 29332053 TI - Apparent Cognitive Decline as Revealed by an Executive Function Test within a Cohort of Elderly Individuals Self-Reporting Normal Cognitive Performance. AB - Alzheimer's disease (AD) can be preceded by subtle memory decline that can last a decade or more before progressing to what would be diagnosed as the mild cognitive impairment stage. During this early stage of decline, individuals and even their caregivers can fail to perceive any serious difficulty or need to consult a physician. Herein, we present evidence in support of these concerns, and demonstrate how this can interfere not only with clinical trials of AD but also those involving cognitive performance of elderly individuals without intentional reference to AD. PMID- 29332054 TI - Dementia and Atrial Fibrillation: A Dangerous Combination for Ischemic Stroke and Mortality. AB - The risk of developing dementia is increased in patients with atrial fibrillation (AF), with the incidence of both conditions increasing with aging. Patients with dementia frequently do not receiving adequate thrombo-prophylaxis, because of the inability to monitor INR and/or to achieve and maintain good compliance with anticoagulant treatment. Under-treatment is therefore an important contributor to the increased risk of ischemic stroke and mortality in this subgroup of AF patients. In newly-diagnosed patients with AF starting oral anticoagulation, the presence of cognitive impairment should be considered in addition to the calculation of the SAMe-TT2R2 score, as part of an integrated decision management pathway to choose the most appropriate oral anticoagulant [i.e., vitamin K antagonists (VKAs) or non-vitamin K oral anticoagulants (NOACs)]. Moreover, in patients with low or worsening time in therapeutic range during VKAs therapy, the assessment of cognitive impairment may help identify those patients who may benefit from switching to NOACs. In conclusion, patients with AF and dementia benefit from anticoagulation and should not be denied receiving adequate stroke prevention. Cognitive function assessment and social support are pivotal elements in the management of these AF patients. PMID- 29332055 TI - Operating room scheduling and surgeon assignment problem under surgery durations uncertainty. AB - BACKGROUND: Scientific management methods are urgently needed to balance the demand and supply of heath care services in Chinese hospitals. Operating theatre is the bottleneck and costliest department. Therefore, the surgery scheduling is crucial to hospital management. OBJECTIVE: To increase the utilization and reduce the cost of operating theatre, and to improve surgeons' satisfaction in the meantime, a practical surgery scheduling which could assign the operating room (OR) and surgeon for the surgery and sequence surgeries in each OR was provided for hospital managers. METHODS: Surgery durations were predicted by fitting the distributions. A two-step mixed integer programming model considering surgery duration uncertainty was proposed, and sample average approximation (SAA) method was applied to solve the model. RESULTS: Durations of various surgeries were log normal distributed respectively. Numerical experiments showed the model and method could get good solutions with different sample sizes. CONCLUSIONS: Real life constraints and duration uncertainty were considered in the study, and the model was also very applicable in practice. Average overtime of each OR was reducing and tending to be stable with the number of surgeons increasing, which is a discipline for OR management. PMID- 29332056 TI - Ozone injection with or without percutaneous microdiscectomy for treatment of cervical disc herniation. AB - OBJECTIVE: This retrospective study compared the efficacy of combined percutaneous ozone injection and percutaneous discectomyto percutaneous ozone injection alone for the treatment of cervical disc herniation. METHODS: Patients with cervical disc herniation who were enrolled in our hospital from October 2010 to June 2015 were divided into two groups: 1) treated with percutaneous ozone injection alone (control; n= 19); and 2) those treated with combined ozone injection and percutaneous microdiscectomy (combined treatment; n= 28). The efficacy of the combined treatment was evaluated relative to the control by visual analogue scale (VAS) and the modified Macnab standard. Effective treatment was defined as excellent or good, and ineffective as fair or poor. RESULTS: No major complications occurred in either group. For the control group, the VAS scores dropped from 6.75 +/- 2.34 before surgery to 2.78 +/- 1.85 immediately after surgery, and to 4.18 +/- 1.46 during the follow-ups. For patients who received the combined treatment, the VAS scores were 7.12 +/- 2.03 before surgery, 3.86 +/- 2.87 immediately after surgery, and 3.27 +/- 1.53 during the follow-ups. At the 6-month follow-up, 73.7% (14 from 19 patients) in the control group and 89.2% (25 from 28 patients) in the treatment group were judged to have received effective treatment. Difference in efficacy between two groups of treatment was statistically significant (P= 0.033). CONCLUSION: The rate of effective treatment in patients who received combined percutaneous microdiscectomy and ozone injection was higher than that of patients who received ozone injection alone. Combination of percutaneous microdiscectomy and ozone injection might be an effective method to treat patients with cervical disk hernia. PMID- 29332057 TI - Evaluation of thickness of CAD/CAM fabricated zirconia cores by digital microscope. AB - Despite several advantages of digitalized workflow, researchers have noted discrepancies in the precision and trueness. This study investigated the accuracy in the final thickness of Zirconia (Zr) cores fabricated by five CAD/CAM systems. Standardized manufacturing of the cores with 1 mm thickness were carried out. Cores were then sectioned into two halves and measurement made with Digital Microscope at 5 points in micrometers. Overall, mean thickness for the groups was 1048.81 +/- 94.01, which was 48 MUm higher than the thickness programmed in the software. Anova showed a statistically significant difference between the groups (p= 0.000). Presence of variations in the thickness and 5 measurement points for the CAD/CAM systems investigated was found. No significant difference was observed and the thickness of the cores were within acceptable level. PMID- 29332058 TI - 3D surface-imaging for volumetric measurement in people with obesity. AB - BACKGROUND: Current methods for tracking the progress of people with obesity towards a weight loss goal appear simple and potentially misleading. A technique to quantify change in body shape whilst visualising areas of the body where weight loss occurs would be advantageous, and has the potential to be used as a motivational tool. Three-dimensional (3D) surface-imaging would serve as a good basis for such a technique, however current systems are prohibitively expensive. OBJECTIVE: Highlight the use of a cheaper alternative 3D surface-imaging system for volumetric measurement in people with obesity. METHODS: A recently developed low-cost 3D surface-imaging system was used, having previously being validated in a healthy population. A total of 61 people with obesity, enrolled on a weight loss programme, were surface-imaged using the system. RESULTS: The findings suggest the low-cost system can obtain 3D surface-images of an obese human body, from which numerical parameters could be calculated and further analysis conducted. CONCLUSIONS: Further studies will focus on the validity and reliability of such analyses and the potential of the system to be considered as a long-term instalment in primary healthcare settings as a weight loss aid. PMID- 29332059 TI - Analysis of skeletal muscle performance using piezoelectric film sensors. AB - A flexible piezoelectric thin film sensor has been proposed recently in several studies for detection of muscle movements. The objective of this study was to investigate the ability of this sensor to assess skeletal muscle performance and fatigue under isokinetic contractions. Simultaneous noninvasive measurements of muscles activity were done using surface electromyography (EMG) electrodes and two thin film piezoelectric sensors. Measurements were taken from the biceps during slow and fast elbow flexion with and without strong grip, during different weight lifting and from the gastrocnemius during treadmill marching at speeds of 4 and of 10 kph. The results shows correlation between the onset of EMG and the piezoelectric sensors (Piezo) signals during muscle contraction. Increasing contraction intensity increase significantly both EMG and Piezo signals. Higher contractions velocity increased Piezo signal. Opposite linear relation was found between the average maximal EMG envelope amplitudes and the average maximal Piezo peaks with increasing loads. The significant decrease in the maximal Piezo peaks with time of all 3 subjects during elbow flexion while holding weight suggests the ability of piezoelectric thin film sensor to track muscle fatigue during isokinetic contractions. PMID- 29332060 TI - Information technology as a tool for the Italian Institute of Social Security (INPS) in the management of social security and civil disability: Pro and cons. AB - We examine, from a medical-legal perspective, the pro and cons of the information technology procedures that the Italian Institute of Social Security (INPS) has implemented to manage the provision of social disability assistance, meaning that separate from the payment of pension contributions, being welfare, anchored to an administrative requirement by way of the compulsory payment of a minimum social security contribution. PMID- 29332061 TI - Design and implementation of an advanced telemedicine model for the rural people of Bangladesh. AB - OBJECTIVES: Telemedicine based healthcare service faces different difficulties especially in the remote people of Bangladesh. The objective of this study was to implement an advanced telemedicine model in order to provide the healthcare services for the rural people of Bangladesh. METHODS: We developed the telemedicine model using an ardunio based low cost portable telemedicine tool kit by interfacing android application. Then we collected ECG, blood pressure, temperature, concentration of glucose in blood, SPO2, body position, airflow, height and weight through our developed model. Moreover, we designed a server for storing the recorded signal from the patients in order to treat them by health care professionals. Finally, this model is successfully tested with the patients of Marie Stopes Bangladesh Hospital Dhaka. RESULTS: We have removed noise from the recorded signal successfully through our developed hardware and software based techniques. Real time data were visualized to the expert doctor in order to prescribe them through our model. CONCLUSIONS: These results support that rural patient vital information can be collected in an automated way through the advanced model. Both rural and urban doctors can share and exchange patient information more effectively for the treatment of patient. The results of this research indicated that our developed telemedicine system can be used effectively in order to deliver healthcare services for the rural people of Bangladesh. PMID- 29332062 TI - Cytologic Features of Malignant Melanoma with Osteoclast-Like Giant Cells. AB - BACKGROUND: Malignant melanoma showing numerous osteoclast-like giant cells (OGCs) is an uncommon morphologic phenomenon, rarely mentioned in the cytologic literature. The few reported cases seem to have an aggressive clinical behavior. Although most findings support monocyte/macrophage differentiation, the exact nature of OGCs is not clear. CASE: A 57-year-old woman presented with an inguinal lymphadenopathy. Sixteen years before, cutaneous malignant melanoma of the lower limb had been excised. Needle aspiration revealed abundant neoplastic single cells as well as numerous multinucleated OGCs. Occasional neoplastic giant cells were also present. Nuclei of OGCs were monomorphic with oval morphology and were smaller than those of melanoma cells. The immunophenotype of OGCs (S100-, HMB45-, Melan-A-, SOX10-, Ki67-, CD163-, BRAF-, CD68+, MiTF+, p16+) was the expected for reactive OGCs of monocyte/macrophage origin. The tumor has shown an aggressive behavior with further metastases to the axillary lymph nodes and oral cavity. CONCLUSION: Numerous OGCs are a rare and relevant finding in malignant melanoma. Their presence should not induce confusion with other tumors rich in osteoclastic cells. Since a relevant number of OGCs in melanoma may mean a more aggressive behavior, and patients may benefit from specific treatments, their presence should be mentioned in the pathologic report. PMID- 29332063 TI - Diffusion Tensor Imaging Investigation of Uncinate Fasciculus Anatomy in Healthy Controls: Description of a Subgenual Stem. AB - The uncinate fasciculus is the largest white matter association tract connecting the prefrontal cortex and the anteromedial temporal lobe. The traditional anatomical description outlines a temporal stem that hooks around the posterior insula, a subinsular body, and 2 prefrontal stems extending to the lateral orbital gyri and the frontopolar cortex. Recent imaging studies of the white matter tracts deep to the subgenual cingulate gyrus (Brodmann area 25: BA25) suggest the presence of white matter fibers extending from BA25 to the amygdala, via a route that would run in close proximity to the uncinate fasciculus, that are of functional importance in mood disorders. We hypothesized that these fibers represent a third, medial prefrontal stem of the uncinate fasciculus. Using diffusion tensor imaging in 74 healthy volunteer humans, we seeded the uncinate fasciculus using 2 regions of interest centered over the temporal stem and the caudal body of the uncinate fasciculus in the coronal plane at the level of the anterior commissure. A medial prefrontal stem extending to the subgenual cingulate gyrus was demonstrated in 65/74 left and 70/74 right cerebral hemispheres, and had a mean fractional anisotropy value of 0.43 (95% CI 0.40 0.47). The medial subgenual stem fibers were inseparable from the caudal body and temporal stem of the main uncinate fasciculus and followed the same hook-shaped morphology. A probable medial subgenual prefrontal stem of the uncinate fasciculus was demonstrated in a cohort of healthy volunteers and is of potential significance in our understanding of neuropsychiatry and mood disorders. PMID- 29332064 TI - Recurrent Intragenic Duplication within the NR5A1 Gene and Severe Proximal Hypospadias. AB - A heterozygous intragenic duplication within the repeated area (CTGCAGCTG)*2 of the NR5A1 gene was found in a 15-year-old 46,XY DSD (disorders/differences of sex development) patient with micropenis and severe proximal hypospadias. This heterozygous duplication has already been described twice in boys with a similar phenotype, whereas a deletion of 3 amino acids at the same position in the protein SF-1 has been described in a 46,XX patient with primary ovarian failure and short stature. These data suggest that this region within the NR5A1 gene has an important role for SF-1 protein function in gonads and is a hotspot for intragenic rearrangements. PMID- 29332065 TI - A Novel Mutation of AMHR2 In Two Siblings with Persistent Mullerian Duct Syndrome. AB - Persistent mullerian duct syndrome (PMDS) is characterized by the presence of mullerian duct derivatives in otherwise phenotypically normal males. It is caused in approximately 85% of the cases by mutations in the AMH gene or its type II receptor (AMHR2). We report on 2 brothers with normal external genitalia but high serum AMH levels. Sequence analysis of the AMHR2 gene in the 2 siblings revealed a novel homozygous missense mutation in exon 10 (p.V458L, c.1372G>T). PMDS is a rare condition, but it has to be considered in differential diagnosis of cryptorchidism with normal male genitalia. PMID- 29332066 TI - Correlation between Serum Calcineurin Activity and Left Ventricular Hypertrophy in Hypertensive Patients and Its Clinical Significance. AB - OBJECTIVE: The aim of this study is to investigate the correlation between calcineurin (CaN) and hypertension with left ventricular hypertrophy (HLVH) and to evaluate its potential clinical significance. DESIGN: The study involved 160 patients diagnosed with hypertension and 42 controls. Based on the exclusion criteria, 42 were not eligible for this study. The remaining 118 hypertensive patients were categorized into 2 subgroups based on left ventricular mass index and relative ventricular wall thickness: a normal model subgroup with hypertension (HNM) and an HLVH subgroup. Serum CaN levels were determined by enzyme-linked immunosorbent assay, while serum CaN activity was determined by malachite green colorimetric assay. RESULTS: Among the HNM and HLVH subgroups, a positive correlation was demonstrated between serum CaN activity, but not serum CaN level, and HLVH. Moreover, the HLVH subgroup displayed a remarkable increase in the levels of brain natriuretic peptide, cystatin C, urinary albumin/creatinine ratio, and left atrium diameter compared to the HNM subgroup and controls. CONCLUSION: There was a positive correlation between serum CaN activity and LVH in hypertensive patients. Activated CaN could play an important role in the pathophysiologic mechanism of HLVH. Serum CaN activity could be a clinically useful diagnostic and prognostic biomarker for LVH. PMID- 29332067 TI - Incidence of and Risk Factors for Residual Anastomoses in Twin-Twin Transfusion Syndrome Treated with Laser Surgery: A 15-Year Single-Center Experience. AB - OBJECTIVES: To evaluate the incidence of residual anastomoses (RA) after laser therapy for twin-twin transfusion syndrome (TTS) and investigate risk factors for incomplete laser surgery. MATERIAL AND METHODS: All available TTS placentas treated with laser at our center between 2002 and 2016 were injected with color dye to assess the presence of RA. We evaluated the incidence of RA over the past 15 years by dividing the cohort into three time periods, and studied the association with risk factors and neonatal outcome. RESULTS: Overall, RA were detected in 21.0% (78/371) of placentas. The incidence of RA decreased from 38.8% (26/67) in the initial period to 11.7% (16/137) in the most recent period (p < 0.001). On multivariate analysis, several risk factors were independently associated with the risk of RA, including Solomon laser technique (odds ratio [OR] 0.17, 95% CI 0.09-0.33) and estimation of surgical success (OR 19.28, 95% CI 8.17-45.49). Premature delivery and neonatal morbidity occurred more often in TTS cases with RA. CONCLUSIONS: The incidence of RA after laser therapy for TTS decreased significantly in the past 15 years and is now below 15% due to the use of the Solomon technique. PMID- 29332068 TI - The Role of Preoperative Steroids for Hearing Preservation Cochlear Implantation: Results of a Randomized Controlled Trial. AB - OBJECTIVES: To determine whether preoperative steroids can improve hearing outcomes in cochlear implantation (CI). METHODS: This is a randomized controlled trial involving 30 postlingual deaf CI patients. Subjects had preoperative thresholds of better than or equal to 80 dB at 125 and 250 Hz, and better than or equal to 90 dB at 500 and 1,000 Hz. The subjects were randomized to a control group, an oral steroid group (receiving 1 mg/kg/day of prednisolone for 6 days prior to surgery), or a transtympanic steroid group (receiving a single dose of 0.5 mL of 10 mg/mL dexamethasone at 24 h prior to surgery). RESULTS: The subjects receiving transtympanic steroids had a significant decrease in the pure tone average over 3 months compared to the control and oral steroid group, which persisted over 12 months (p < 0.05). CONCLUSION: A single dose of preoperative transtympanic steroids prior to CI appears to have a beneficial effect, at least in the short term, with minimal effects seen in the longer term. PMID- 29332069 TI - The History of Movement Disorder Brain Surgery. AB - The first surgical procedures for abnormal movement disorders began in the 1930s, when surgeons first proposed ablative techniques of the caudate nucleus or transection of motor (pyramidal) pathways to reduce involuntary movements in patients with Parkinson's related tremor. During the 50-year interval between 1945 and 1995, the development of precise intracranial guiding devices, brain maps, and advanced imaging led to the refinement of appropriate deep brain targets affecting extrapyramidal pathways. Lesional surgery and subsequent neuroaugmentation using deep brain stimulation extended the role of deep brain surgery for a wider group of patients with tremor, rigidity, dyskinesia, and other involuntary movement disorders. Stereotactic radiosurgery has had wide application for tremor. The history of movement disorder surgery reads like a who's who of brilliant and resourceful surgeons who pushed the frontiers of neurosurgery. Even today, practitioners of functional brain surgery are among the most innovative practicing neurosurgeons. PMID- 29332070 TI - Pathophysiologic Basis of Movement Disorders. AB - Movement disorders are common and functionally disabling neurologic diseases. Studies over the last decades have investigated the pathophysiology of these diseases in considerable detail, leading to significant insights into their generation of motor disability. While genetically and clinically heterogeneous, most of them are accompanied by prominent and characteristic changes in firing rates and patterns in the basal ganglia, thalamus, and cortex. In recent years, researchers have placed increasing emphasis on the importance of oscillatory changes in firing in these structures, and have discovered that brain areas that were previously considered to be remote from the basal ganglia (such as the cerebellum and the pedunculopontine nucleus) are also highly significant in these disorders. The evolving pathophysiologic concepts have important implications for improving our understanding of the biology of these disorders, and for the development of more effective pharmacologic and surgical therapies with fewer side effects than seen with the currently available treatments. In this chapter, the known pathophysiology of three common movement disorders, Parkinson's disease, dystonia, and essential tremor, is reviewed. PMID- 29332071 TI - Clinical Presentation and Prognosis of Common Movement Disorders. AB - Great progress has been made in expanding our understanding of the natural history of movement disorders, leading to impressive advancements in their medical and surgical management. Movement disorders are a diverse group of diseases, varying widely in clinical characteristics and evolution. Some are monosymptomatic while others have associated motor and nonmotor features. Some are static while others follow a progressive course. This chapter will review common primary and secondary movement disorders: Parkinson disease and other forms of Parkinsonism, essential tremor and its differential diagnoses, dystonia and tic disorders. Herein, we will provide an overview of the clinical presentation and prognosis of the primary and secondary movement disorders most relevant to discussions of surgical candidacy. PMID- 29332072 TI - Medical Management of Movement Disorders. AB - Pharmacological treatment is the cornerstone in the management of movement disorders. Although most available treatment options have no impact on the underlying process of each movement disorder, symptomatic therapies can significantly improve patient's quality of life and level of disability. Here, we review the current knowledge on clinical symptomatic management of Parkinson's disease (both early and advanced stages), essential tremor, dystonia, and chorea. Ideally, treatment should be carried out by specialists with reasonable experience in movement disorders, as it needs to be tailored for each patient depending on several appraisals, including but not limited to patients' needs, compliance issues, potential side effects, caregiver support, and presence of comorbidities. When medications fail to improve patient's disability, stereotactic surgery is a well-established option for most of these disorders. PMID- 29332073 TI - Functional Anatomy of Basal Ganglia Circuits with the Cerebral Cortex and the Cerebellum. AB - The neural connections of the basal ganglia provide important insights into their function. Here, we discuss the current perspective on basal ganglia connections with the cerebral cortex and with the cerebellum. We review the evidence that the basal ganglia participate in functionally segregated circuits with motor and non motor areas of the cerebral cortex. We then discuss the data that the basal ganglia are interconnected with the cerebellum. These results provide the anatomical substrate for basal ganglia contributions not only to the control of movement, but also to a variety of cognitive and affective functions. Furthermore, these findings indicate that abnormal activity in basal ganglia circuits with the cerebral cortex and with the cerebellum may contribute to both motor and non-motor deficits associated with several neurologic and psychiatric conditions. PMID- 29332074 TI - Diffusion Tensor Imaging of the Basal Ganglia for Functional Neurosurgery Applications. AB - Since its introduction, diffusion tensor imaging (DTI) has become an important tool in neuroscience given its unprecedented ability to image brain white matter in vivo. The interest in understanding the mechanisms of action of Deep Brain Stimulation in different targets and indications, together with the constant drive towards the improvement in long-term clinical outcomes, has found a logical complement in the application of tractography in this field. Diffusion tensor imaging has been traditionally associated with an increased susceptibility to MRI artifacts, and expensive computational resources. Recent advances have however improved these restrictions, allowing for countless applications in Neurosurgery, as demonstrated by the large number of original research papers published in the last decade. In this chapter, we review the current status of the implementation of DTI during DBS of the basal ganglia, discussing the findings, potential challenges and the expected improvements in surgical outcomes deriving by the routine use of tractography in functional neurosurgery. PMID- 29332075 TI - Patient Evaluation and Selection for Movement Disorders Surgery: The Changing Spectrum of Indications. AB - This report summarizes the state-of-the-art and controversies around patient selection for deep brain stimulation (DBS) for various conditions. Parkinson's disease (PD): several class I studies have shown superiority of DBS over best medical treatment for advanced PD with fluctuations and further inclusion criteria. One class I study suggests that PD patients with early motor complications might gain more quality of life if operated within 3 years after the onset of fluctuations. The subthalamic nucleus (STN) is still the standard target. STN DBS has an impact on impulse control disorders though the exact mechanism is unclear. Tremor: essential tremor (ET) patients found to be eligible for DBS surgery should first be treated with primidone, propranolol, and with a combined therapy preoperatively. Second-line drugs (i.e., topiramate and gabapentin) may be useful. No class I studies exist for DBS treatment of ET. The optimal target of DBS in ET might be the posterior subthalamic area. Dystonia: there is class I evidence for primary generalized and segmental dystonia and for some botulinum-resistant focal dystonias. The impact of age, symptom duration, and DYT-mutation status in primary dystonia on the outcome of DBS surgery clearly demands more studies. DBS has a role in SCGE-mutation positive myoclonus dystonia and tardive dystonia. Finally, neurostimulation in secondary dystonia might be considered in selected patients based on an individual patient's approach. PMID- 29332077 TI - Stereotactic Radiofrequency Lesioning for Movement Disorders. AB - During the past 2 decades, deep brain stimulation (DBS) took over the position of radiofrequency (RF) lesioning of thalamic or pallidal targets for control of movement disorders. Superiority of DBS over RF lesioning is widely accepted, and most neurosurgeons even regard RF lesioning to be old-fashioned and dangerous. Such concepts emerged from the data of old stereotactic operations with ventriculography and without computerized planning. Hardware-related complications are not negligible in long-term DBS therapy, and DBS only controls the symptoms. Living with an implanted device is also a burden for patients. With modern stereotactic techniques, RF lesioning is safe and effective. Indication of RF lesioning includes various types of tremor, focal hand dystonia, and even generalized or segmental dystonias. Neurosurgeons armed with both the procedures can choose the best treatment modality for patients. PMID- 29332076 TI - Image-Guided, Asleep Deep Brain Stimulation. AB - Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders. Finally, the recent approval of MR-guided focused ultrasound for the treatment of essential tremor and potentially other movement disorders heralds a resurgence in lesion creation as a viable alternative to DBS for selected patients. PMID- 29332078 TI - Magnetic Resonance-Guided High Intensity Focused Ultrasound for Treating Movement Disorders. AB - Transcranial magnetic resonance-guided focused ultrasound (MRgFUS) surgery has recently gained favor as a novel, noninvasive alternative to conventional neurosurgery. In contrast to traditional ablative interventions, transcranial MRgFUS surgery is entirely imaging-guided and uses continuous temperature measurements at the target and surrounding tissue taken in real-time. Unlike Gamma Knife radiosurgery, MRgFUS surgery can make a lesion immediately and does not use ionizing radiation. Moreover, since no metallic device is implanted, MR imaging-based diagnosis is not restricted throughout life. An additional strength of transcranial MRgFUS surgery is its ability to focus acoustic energy through the intact skull onto deep-seated targets, while minimizing adjacent tissue damage. Even though the established indications of MRgFUS include bone metastases, uterine fibroids, and breast lesions, several promising preclinical and phase I clinical trials of neuropathic pain, essential tremor, Parkinson's disease (PD), and obsessive-compulsive disorder have demonstrated that the delivery of focused ultrasound energy promises to be a broadly applicable technique. For instance, this technique can be used to generate focal intracranial thermal ablative lesions of brain tumors, or to silence dysfunctional neural circuits and disrupt the blood-brain barrier for targeted drug delivery and the modulation of neural activity. Here we review the general principles of MRgFUS and its current applications, with a special focus on movement disorders such as essential tremor and PD, and discuss controversies and limitations of this technique. PMID- 29332079 TI - Radiosurgical Thalamotomy. AB - Tremor is a common movement disorder that can be disabling, and its initial treatment is in the form of medical therapies. Often patients are refractory and seek surgical intervention. Treatment options for these patients include surgical radiofrequency thalamotomy and deep brain stimulation. There are a subset of patients who, for various reasons, are not candidates for open surgical procedures, or who opt to avoid them. For these patients, radiosurgical thalamotomy is a safe and useful alternative. Herein, we provide a review of the use of radiosurgical thalamotomy for the treatment of medically refractory tremor by discussing its history, defining the technique and its indications, evaluating its efficacy, and exploring its complications and shortcomings. PMID- 29332080 TI - Radiosurgical Pallidotomy for Parkinson's Disease. AB - Deep brain stimulation (DBS) has been widely accepted as a tool for treating many symptoms of Parkinson's disease (PD); pallidotomy has been nearly abandoned. Concerns about both the safety and efficacy of pallidotomy are based on small series, isolated case reports, and techniques that would now be considered obsolete. The senior author recently reviewed long-term follow-up of a series of patients who had gamma knife pallidotomy (GKP) for advanced PD. GKP leads to durable, clinically significant benefit. Bilateral GKP adds incremental improvement. The complication rate was 4% when calculated on a per lesion basis. GKP is not quite as effective as DBS for tremor and bradykinesia; the results of GKP and DBS are equivalent for dyskinesia. GKP should be considered in patients who are not candidates for DBS. GKP is not as invasive as radiofrequency pallidotomy and avoids the problems and expenses associated with DBS. Patients on anticoagulants, with cognitive deficits or with other contraindications to DBS can be offered GKP to alleviate many of the motor symptoms of PD. PMID- 29332081 TI - Radiosurgical Subthalamic Nucleotomy. AB - Deep brain stimulation (DBS) of the subthalamic nucleus (STN) is the reference technique in Parkinson's disease (PD) at different stages of complications. Some patients cannot afford DBS due to anticoagulation or comorbidities or due to pecuniary reasons. Radiosurgery is a minimally invasive stereotactic technique, with no craniotomy and subsequently no risk of bleeding or infection. Its good safety efficacy profile has been established in the treatment of tremor, and the postoperative care issues are simple with a much shorter hospital stay (mean 48 h). The application of radiosurgery to STN target in PD as an alternative to DBS is being debated. The lesion of the STN is presumed to induce hemiballism. Experimental works suggest a potential lower risk of hemiballism in animal models of PD. However, radiofrequency ablation of the STN is associated with a significant rate of severe dyskinesia, sometimes permanent and severe enough to request salvage pallidotomies. The positive experience of VIM radiosurgery in tremor and its capacity to create precise, accurate and well-controlled lesions provides reasonable rationale for the evaluation of this technique when applied to STN in PD. Preliminary results till date have shown the absence of severe permanent dyskinesia. Prospective controlled trials are mandatory to evaluate the safety efficacy of this technique in PD. PMID- 29332082 TI - Frameless Functional Stereotactic Approaches. AB - The stereotactic frame has served as the gold standard apparatus for accurate and precise targeting of deep brain structures since 1947. Despite passing the test of time, the stereotactic frame has several limitations from the perspective of both neurosurgeons and patients. Therefore, there was a need to develop a frameless system that had equivalent accuracy and reliability to the frame. This need was met with 3 commercially available frameless stereotactic systems designed specifically for deep brain stimulation surgery: Nexframe, STarFix, and ClearPoint. Over the past decade, the frameless and frame-based systems have been extensively investigated by numerous studies and found to be equivalent in experimental and clinical accuracy as well as in clinical outcomes. This chapter summarizes the findings of those studies along with the discussion of sources of stereotactic errors. The procedural aspects, advantages, and disadvantages of each frameless system are reviewed. Frameless stereotaxy is a safe, accurate, and effective technique for functional stereotactic approaches and provides a viable alternative to the frame-based systems. PMID- 29332083 TI - Deep Brain Stimulation: Interventional and Intraoperative MRI Approaches. AB - Interventional and intraoperative MRI approaches to deep brain stimulator implantation are relatively new, and in their purest form represent a distinct departure from traditional stereotactic techniques. They employ a novel means of stereotaxis based on regions of interest in the MR space and simple geometric principles, which eliminate the need for a stereotactic frame. This approach is appropriate for targets that are MR visible, and for whom the local anatomy and function are well characterized. It may also be appropriate for targets that do not have a well-described physiologic signature and for which clinical response to macrostimulation does not play a critical role. We will discuss the rationale and principles of this new technique as well as its advantages and disadvantages relative to awake, physiologically guided deep brain stimulation surgery. PMID- 29332084 TI - Thalamic Deep Brain Stimulation. AB - The use of deep brain stimulation (DBS) of the thalamus has been proven to be a safe and efficacious treatment for the management of many diseases. The most common indication for thalamic DBS remains essential tremor (ET), one of the most common movement disorders in the world. ET patients should be considered for surgical intervention when their tremor has demonstrated to be refractory to medication, a characteristic estimated to be present in roughly 50% of ET cases. Advantages of DBS over thalamotomy include its reversibility, the ability to adjust stimulation settings to optimize efficacy and minimize side effects, the ability to perform bilateral procedures safely, and an association with a lower risk of postoperative cognitive problems. The most common target of DBS for ET is the ventralis intermedius (VIM) of the thalamus, and the optimal electrode location corresponds to the anterior margin of the VIM. Other indications for thalamic DBS include non-ET tremor, obsessive-compulsive disorder, neuropathic pain, traumatic brain injury, Tourette's syndrome, and drug-resistant epilepsy among others. PMID- 29332085 TI - Deep Brain Stimulation of the Subthalamic Nucleus and Globus Pallidus for Parkinson's Disease. AB - The concept of deep brain stimulation (DBS) for Parkinson's disease (PD) was introduced over 20 years ago, but our understanding of the nuances of this procedure continues to improve. The average motor outcomes of internal segment of the globus pallidus (GPi) and subthalamic nucleus (STN) DBS appear to be similar, although GPi DBS may allow greater recovery of verbal fluency and may provide greater relief of depression symptoms and improvement in the quality of life, and STN DBS appears more likely to result in decrease in levodopa equivalent doses. Despite the lack of consensus on whether STN or GPi DBS is most appropriate for a given clinical phenotype, the general expansion of patient selection criteria to include younger and older patients and the advent of real-time imaging-confirmed that DBS electrode placement are making life-changing treatment available to greater numbers of movement disorder patients. PMID- 29332086 TI - Current and Expected Advances in Deep Brain Stimulation for Movement Disorders. AB - Deep brain stimulation (DBS) has become an established treatment for medically refractory movement disorders including Parkinson's disease, essential tremor, and dystonia. The field of DBS continues to evolve with advances in patient selection, target identification, electrode and pulse generator technology, and the development of more effective stimulation paradigms such as closed-loop stimulation. Furthermore, as the safety and efficacy of DBS improves through better hardware design and deeper understanding of its mechanisms of action, the indications for DBS will continue to expand to cover a wider range of disorders. Finally, the recent approval of MR-guided focused ultrasound for the treatment of essential tremor and potentially other movement disorders heralds a resurgence in lesion creation as a viable alternative to DBS for selected patients. PMID- 29332087 TI - Adaptive Brain Stimulation for Movement Disorders. AB - Deep brain stimulation (DBS) has markedly changed how we treat movement disorders including Parkinson's disease (PD), dystonia, and essential tremor (ET). However, despite its demonstrable clinical benefit, DBS is often limited by side effects and partial efficacy. These limitations may be due in part to the fact that DBS interferes with both pathological and physiological neural activities. DBS could, therefore, be potentially improved were it applied selectively and only at times of enhanced pathological activity. This form of stimulation is known as closed loop or adaptive DBS (aDBS). An aDBS approach has been shown to be superior to conventional DBS in PD in primates using cortical neuronal spike triggering and in humans employing local field potential biomarkers. Likewise, aDBS studies for essential and Parkinsonian tremor are advancing and show great promise, using both peripheral or central sensing and stimulation. aDBS has not yet been trialed in dystonia and yet exciting and promising biomarkers suggest it could be beneficial here too. In this chapter, we will review the existing literature on aDBS in movement disorders and explore potential biomarkers and stimulation algorithms for applying aDBS in PD, ET, and dystonia. PMID- 29332088 TI - Drug Delivery for Movement Disorders. AB - There has been substantial research interest in delivering therapeutic neurotrophic factors directly to the brain for the treatment of Parkinson's Disease (PD) and other movement disorders. Direct infusion of glial cell-line derived neurotrophic factor has been investigated in both pre-clinical models and clinical trials. In this chapter we discuss past and present research investigating the potential of direct drug delivery to the brain for the treatment of PD and other movement disorders. PMID- 29332089 TI - Gene Therapy for Parkinson's Disease. AB - Gene therapy is a clinical tool that may eventually provide therapeutic benefit to patients suffering from movement disorders through a few potential mechanisms: direct correction of the pathogenic mechanism, neuroprotection, neurorestoration or symptom control. The therapeutic mechanism is therefore dependent on knowledge of disease pathogenesis and the required temporal and spatial specificities of gene expression. An additional critical challenge is achieving the most complete transduction of the target structure while avoiding leakage into neighboring regions or perivascular spaces. Although critical clinical work is ongoing to optimize the direct intracerebral delivery of transgenes to the brain, the field has recently entered a new technological era, where interventional-MRI-guided convection-enhanced delivery is the gold standard for verifying accurate vector delivery in real-time. PMID- 29332090 TI - Impaired Value of 99m Tc-GSA Scintigraphy as an Independent Risk Factor for Posthepatectomy Liver Failure in Patients with Hepatocellular Carcinoma. AB - BACKGROUND: Posthepatectomy liver failure (PHLF) was recently defined with the corresponding recommendations as follows: grade A, no change in clinical management; grade B, clinical management with noninvasive treatment; and grade C, clinical management with invasive treatment. In this study, we identified the risk factors for grade B and C PHLF in patients with hepatocellular carcinoma (HCC). METHODS: Of 339 HCC patients who underwent curative hepatic resection, 218 were included for analysis. The LHL15 index (uptake ratio of the liver to that of the liver and heart at 15 min) was measured by 99m Tc-GSA (99m technetium labelled galactosyl human serum albumin); remnant LHL15 was calculated as LHL15 * [1 - (resected liver weight - tumor volume)/whole liver volume without tumor]. RESULTS: A total of 163 patients were classified as having no PHLF, whereas 17, 37, and 1 patient had PHLF grade A, B, and C, respectively. There were significant differences in indocyanine green R15, serum albumin, prothrombin time, Child-Pugh classification, LHL15 and remnant LHL15 between patients with grades B/C PHLF and patients with grade A or no PHLF. Only remnant LHL15 was identified as an independent risk factor for grades B/C PHLF (p = 0.023), with a cut-off value of 0.755. CONCLUSIONS: Remnant LHL15 was an independent risk factor for grades B/C PHLF. Patients with impaired remnant LHL15 value of <0.755 should be carefully monitored for PHLF. PMID- 29332091 TI - The Association among Default Mode Network Functional Connectivity, Mentalization, and Psychopathology in a Nonclinical Sample: An eLORETA Study. AB - AIMS: We investigated default mode network (DMN) electroencephalography (EEG) functional connectivity differences between individuals with self-reported high mentalization capability and low psychopathological symptoms, versus participants with mentalization impairments and high psychopathological symptoms. METHODS: Forty-nine students (35 women) with a mean age of 22.92 +/- 2.53 years were administered the Mentalization Questionnaire (MZQ) and the Symptom Checklist-90 Revised. Five minutes of EEG during resting state were also recorded for each participant. DMN functional connectivity analyses were conducted by means of the exact Low Resolution Electric Tomography software (eLORETA). RESULTS: Compared to the individuals with high mentalization capability and lower self-reported psychopathological symptoms, participants with mentalization impairments and high psychopathological symptoms showed a decrease of EEG beta connectivity between: (i) the right and left medial frontal lobe, and (ii) the left medial frontal lobe and the right anterior cingulate cortex. Furthermore, while MZQ total score was positively associated with DMN network connections (i.e., right and left medial frontal lobes), several psychopathological symptoms (i.e., interpersonal sensitivity, depression, and psychoticism) were negatively associated with DMN connectivity. CONCLUSION: Our results may reflect a top-down emotion regulation deficit which is associated with both internalizing and externalizing behavior problems. PMID- 29332092 TI - Early Life Stress Activates Glial Cells in the Hippocampus but Attenuates Cytokine Secretion in Response to an Immune Challenge in Rat Pups. AB - OBJECTIVE: Early life stress (ELS) increases the vulnerability to developing psychopathological disorders in adulthood that are accompanied by brain inflammatory processes. However, it is not known how a combined double hit (stress and immune) at an early age affects the response of the neuroimmune system. Here we investigated the effect of periodic maternal separation (MS) followed by administration of lipopolysaccharide (LPS) on glial cells in the CA3 region and hilus of the hippocampus and on cytokine release on postnatal day (PN) 15. METHODS: Male rat pups were subjected to MS (3 h/day, PN1-14). MS and control pups received a single LPS injection (1 mg/kg of body weight) on PN14. They were subjected to an open field test 1 h later. The pups were sacrificed 90 min after LPS injection (PN14) or on PN15 for cytokine or immunohistological analyses, respectively. RESULTS: LPS reduced the locomotion and induced high corticosterone levels in treated pups. MS or LPS reduced microglial density and activated microglial cells in the hippocampal CA3 and hilus regions. Microglial activation was highest in MS-LPS pups. The astrocyte density was mildly reduced by MS or LPS in the CA3 region and hilus, but the reduction was maximal in MS-LPS pups. LPS increased the secretion of plasmatic interleukin (IL)-1beta, tumor necrosis factor-alpha, and IL-6, and of hippocampal IL-1beta protein, but these were attenuated in MS-LPS pups. CONCLUSION: Although MS and LPS activate neuroimmune cells, stress attenuates the hippocampal and peripheral cytokine response to LPS through an as-yet unidentified adaptive mechanism. These results provide information regarding the neurobiology of stress and inflammation. PMID- 29332093 TI - Structure-Function Correlation in Hemianopic Vision Loss in Children Aged 3-6 Years Using OCT and SVOP, and Comparison with Adult Eyes. AB - PURPOSE: To correlate visual field assessment with saccadic vector optokinetic perimetry (SVOP) in children with ganglion cell loss due to anterior pathway pathologies resulting in hemianopic visual field defects measured with optical coherence tomography (OCT). METHODS: 5 young (aged 3-6 years) and 5 adult patients with hemianopia, 10 healthy preschoolers (mean age 4.4 years), and 10 healthy adults (mean age 25.3 years) were tested with SVOP and OCT (focusing on the ganglion cell layer, GCL+). In adults, visual field testing was also performed with static and fundus-controlled perimetry. RESULTS: OCT allowed precise structure analysis and showed a vertical border with GCL+ loss on the hemianopic side in children and adults compared to controls. SVOP showed visual field defects on the hemianopic side in peripheral regions and inadequate results at the parafoveal positions in both groups. In contrast, static and fundus controlled perimetry showed a clear border in foveal and parafoveal regions. CONCLUSIONS: All children underwent SVOP with minimal restrictions, allowing functional evaluation of peripheral visual field positions. Parafoveal positions showed multiple false-positive results. The function-structure relationship is measurable even in young children by using the GCL+ analysis. This combination of novel child-friendly techniques allows collecting objectively measured values and simplifies diagnosis and follow-up in treatment. PMID- 29332094 TI - Low-Dose Oral Immunotherapy Using Low-Egg-Allergen Cookies for Severe Egg Allergic Children Reduces Allergy Severity and Affects Allergen-Specific Antibodies in Serum. AB - BACKGROUND: We evaluated the safety and efficacy of low-egg-allergen cookies (LAC) as low-dose oral immunotherapy (OIT) in children with severe egg allergy. We also examined the relationship between mild desensitization by low-dose OIT and serum biomarkers of allergy. METHODS: We enrolled 13 children with egg allergy who could not receive OIT with hard-boiled egg white (EW). For 11 participants, OIT was carried out using LAC for 3-4 months. Open food challenges with hard-boiled EW and blood samplings were performed before and after OIT. Participants were divided into 2 groups: high effect (H-E) and no/low effect (N/L E). Serum levels of total IgE and egg yolk-, EW-, and ovomucoid (OM)-specific IgE, ovalbumin (OVA)- and OM-specific IgG4, IgA1, and IgA2, and the percentage of CD 203c+ were measured. RESULTS: Allergic severity was reduced in 7 patients, who were assigned to the H-E group. Moreover, no study participants were taken off the intake of LAC during OIT. In the H-E group, OVA-specific IgA2 levels after OIT were significantly higher than before OIT. The ratios of OM-specific IgG4/OM specific IgE and OM-specific IgA2/OM-specific IgE in the H-E group after OIT were significantly higher than before OIT. CONCLUSION: Our findings suggest that low dose OIT using LAC is an effective and safe treatment for patients with severe egg allergy. PMID- 29332095 TI - Both Serum Brain-Derived Neurotrophic Factor and Interleukin-6 Levels Are Not Associated with Therapeutic Response to Lamotrigine Augmentation Therapy in Treatment-Resistant Depressive Disorder. AB - BACKGROUND/AIMS: Serum levels of brain-derived neurotrophic factor (BDNF) and interleukin-6 (IL-6) were prospectively monitored in relation with therapeutic response to lamotrigine augmentation therapy in 46 (15 males and 31 females) inpatients with treatment-resistant depressive disorder during an 8-week treatment with lamotrigine using an open-study design. METHODS: The subjects were 46 depressed patients who had already shown insufficient response to at least 3 psychotropics including antidepressants, mood stabilizers, and atypical antipsychotics. The diagnoses were major depressive disorder (n = 19), bipolar I disorder (n = 6), and bipolar II disorder (n = 22). The final doses of lamotrigine were 100 mg/day for 26 subjects who were not taking valproate and 75 mg/day for 20 subjects taking valproate, respectively. Depressive symptoms were evaluated by the Montgomery-Asberg Depression Rating Scale (MADRS) before and after the 8-week treatment. Blood sampling was performed before the start of lamotrigine treatment and at week 8. Serum BDNF and IL-6 levels were measured using quantitative sandwich enzyme immunoassays. RESULTS: No significant changes in serum BDNF or IL-6 levels during the 8-week lamotrigine treatment were observed in the total of subjects, responders or nonresponders. There was no significant correlation between the changes in serum BDNF or IL-6 levels and the percent improvement in MADRS scores in the overall subjects. CONCLUSION: The present study suggests that the acute effect of lamotrigine augmentation therapy for a major depressive episode is not related to either BDNF or IL-6, at least in patients with treatment-resistant depressive disorder. PMID- 29332096 TI - Higher Thrombin-Antithrombin III Complex Levels May Indicate Severe Acute Pancreatitis. AB - AIM: Coagulation disorders may develop in association with severe acute pancreatitis (AP). Plasma thrombin-antithrombin III complex (TAT) levels are one of the principal markers of coagulation disorder. The purpose of this study was to evaluate TAT and other hemostatic parameters in patients with AP and to examine whether or not these parameters indicate the severity of AP. METHOD: Forty-six patients with AP (14 severe, 32 non-severe) and a 30-member healthy control group were recruited. The severity of AP was determined using the revised Atlanta classification. ELISA was used to measure patients' plasma TAT levels. RESULTS: The TAT levels of AP patients at presentation were higher than those of the control group (p = 0.005). The plasma TAT levels of patients with severe AP were also significantly higher than those of patients with non-severe AP (p = 0.05) and of the control group (p < 0.001). The general accuracy, sensitivity and specificity of TAT levels in predicting the severity of AP were 77.4, 77.8, and 77.3% respectively. CONCLUSION: The coagulation cascade was activated in the AP patients in our study, and this was shown to become more pronounced as severity of the disease increased. Plasma TAT levels at the time of presentation in patients with AP can be used as a marker for predicting the severity of the disease. PMID- 29332098 TI - A Novel Mutation of the delta-Globin Gene in an Asymptomatic 30-Year-Old Female. PMID- 29332097 TI - Is the Atopy Patch Test Reliable in the Evaluation of Food Allergy-Related Atopic Dermatitis? AB - BACKGROUND: Aeroallergens and food allergens are found to be relevant in atopic dermatitis. The atopy patch test (APT) can help to detect food allergies in children with atopic dermatitis. This study evaluates if the APT is a valuable tool in the diagnostic workup of children with food allergy-related atopic dermatitis. METHODS: 42 children between 6 months and 12 years of age were selected at the Mofid Children Hospital. Atopic dermatitis was diagnosed, and the severity of the disease was determined. At the test visit, the patients underwent a skin prick test (SPT), APT, and serum IgE level measurement for cow's milk, egg yolk, egg white, wheat, and soy. RESULTS: We found a sensitivity of 91.7%, a specificity of 72.7%, a positive predictive value (PPV) of 88%, a negative predictive value (NPV) of 80%, and an accuracy of 85.7% for APT performed for cow's milk. APT performed for egg yolk had a sensitivity and a NPV of 100%, while the same parameters obtained with egg white were 84.2 and 75%, respectively. The sensitivity, specificity, and NPV of the APT for wheat were 100, 75, and 100%, respectively. The sensitivity, PPV, and NPV of the APT for soy were 87.5, 70, and 87.5%, respectively. CONCLUSIONS: Our data demonstrate that the APT is a reliable diagnostic tool to evaluate suspected food allergy-related skin symptoms in childhood and infancy. PMID- 29332099 TI - Association between the Intron 8 VNTR Polymorphism of the DAT1 Gene and Crack Cocaine Addiction. AB - BACKGROUND: This study aims to compare allele and genotype frequencies of a 30-bp variable number of tandem repeats (VNTR) polymorphism of the DAT1 gene, located at intron 8, between adult crack cocaine users and nonaddicted individuals. Due to its involvement in drug addiction, this gene is a good candidate for molecular studies. METHODS: A cross-sectional sample of 239 current adult crack abusers or dependents from in- and outpatient clinics and 211 control individuals was collected in Brazil. They were evaluated using ASRS, ASI-6, WAIS-III, and MINI assessments. DNA samples extracted from whole blood were genotyped for the intron 8 VNTR in DAT1. RESULTS: Logistic regression analysis was performed and controlled for gender, age, ethnicity, educational level, and comorbidities of clinical interest (generalized anxiety disorder, suicide risk, major depressive episode, and attention deficit/hyperactivity disorder). This analysis showed that the 6R6R genotype was associated with crack cocaine addiction (OR = 1.844; CI = 1.101-3.089; p = 0.020). CONCLUSIONS: Our results are consistent with the role of DAT1 in the neurobiology of drug addiction. Nevertheless, the study of other genes, environmental factors, and their interactions is also important to gain a broader understanding of this condition. PMID- 29332101 TI - Is Kinesio Taping to Generate Skin Convolutions Effective for Increasing Local Blood Circulation? AB - BACKGROUND It is unclear whether traditional application of Kinesio taping, which produces wrinkles in the skin, is effective for improving blood circulation. This study investigated local skin temperature changes after the application of an elastic therapeutic tape using convolution and non-convolution taping methods (CTM/NCTM). MATERIAL AND METHODS Twenty-eight pain-free men underwent CTM and NCTM randomly applied to the right and left sides of the lower back. Using infrared thermography, skin temperature was measured before, immediately after application, 5 min later, 15 min later, and after the removal of the tape. RESULTS Both CTM and NCTM showed a slight, but significant, decrease in skin temperature for up to 5 min. The skin temperature at 15 min and after the removal of the tape was not significantly different from the initial temperature for CTM and NCTM. There were also no significant differences in the skin temperatures between CTM and NCTM. CONCLUSIONS Our findings do not support a therapeutic effect of wrinkling the skin with elastic tape application as a technique to increase local blood flow. PMID- 29332102 TI - Saudi Medical Journal 2017. AB - [No Abstract Available]. PMID- 29332100 TI - Robot-Assisted Radical Prostatectomy Is More Beneficial for Prostate Cancer Patients: A System Review and Meta-Analysis. AB - BACKGROUND Robot-assisted radical prostatectomy (RARP) is increasingly used worldwide, but comparisons of perioperative, functional, and oncologic outcomes among RARP, laparoscopic radical prostatectomy (LRP), and open radical prostatectomy (ORP) remain inconsistent. MATERIAL AND METHODS Systematic literature searches were conducted using EMBASE, PubMed, the Cochrane Library, CNKI, and Science Direct/Elsevier up to April 2017. A meta-analysis was conducted using Review Manager and Stata software. RESULTS We included 33 studies. Meta analysis revealed that blood loss, transfusion rate, and positive surgical margin (PSM) rate were significantly lower following RARP compared with LRP (SMD (95% confidence interval [CI]) 0.31 [0.01, 0.61]; combined ORs (95% CI) 5.32 [1.29, 21.98]; 1.27 [1.10, 1.46]) and ORP (SMD (95% CI) 0.75 [0.30, 1.21]; and combined ORs (95% CI) 3.44 [1.21, 9.79]); positive surgical margin (PSM) rates were significantly lower following RARP compared with LRP (combined ORs (95% CI) 1.27 [1.10, 1.46]), but not ORP. Operation time was also shorter for RARP than for LRP. The rates of nerve-sparing, recovery of complete urinary continence, and recovery of erectile function were significantly higher following RARP compared with LRP (combined ORs (95% CI) 0.55 [0.31, 0.95]; 0.66 [0.55, 0.78]; 0.46 [0.30, 0.71]) and ORP (combined ORs (95% CI) 0.36 [0.21, 0.63]; 0.33 [0.15, 0.74]; 0.65 [0.37, 1.14]). CONCLUSIONS This meta-analysis demonstrates that RARP results in better overall outcomes than LRP and ORP in terms of blood loss, transfusion rate, nerve sparing, urinary continence and erectile dysfunction recovery, and suggests that RARP offers better results than LRP and ORP in treatment of prostate cancer. However, studies with larger sample sizes and long-term results are needed. PMID- 29332103 TI - Proteomic effects of wet cupping (Al-hijamah). AB - Wet cupping (Al-hijamah) is a therapeutic technique practiced worldwide as a part of the Unani system of medicine. It involves bloodletting from acupoints on a patient's skin to produce a therapeutic outcome. A thorough review of research articles on wet cupping with relevance to proteomics field that are indexed by Google Scholar, PubMed, and/or Science Direct databases was performed. Eight original research articles were summarized in this paper. Overall, wet cupping did not have a significant effect on C-reactive protein, Hsp-27, sister chromatid exchanges, and cell replication index. In contrast, wet cupping was found to produce higher oxygen saturation, eliminate lactate from subcutaneous tissues, remove blood containing higher levels of malondialdehyde and nitric oxide, and produce higher activity of myeloperoxidase. The proteomic effects of wet cupping therapy have not been adequately investigated. Thus, future studies on wet cupping that use systemic and sound protocols to avoid bias should be conducted. PMID- 29332104 TI - Assessment of the fit of removable partial denture fabricated by computer-aided designing/computer aided manufacturing technology. AB - OBJECTIVE: To assess the level of evidence that supports the quality of fit for removable partial denture (RPD) fabricated by computer-aided designing/computer aided manufacturing (CAD/CAM) and rapid prototyping (RP) technology. Methods: An electronic search was performed in Google Scholar, PubMed, and Cochrane library search engines, using Boolean operators. All articles published in English and published in the period from 1950 until April 2017 were eligible to be included in this review. The total number of articles contained the search terms in any part of the article (including titles, abstracts, or article texts) were screened, which resulted in 214 articles. After exclusion of irrelevant and duplicated articles, 12 papers were included in this systematic review. Results: All the included studies were case reports, except one study, which was a case series that recruited 10 study participants. The visual and tactile examination in the cast or clinically in the patient's mouth was the most-used method for assessment of the fit of RPDs. From all included studies, only one has assessed the internal fit between RPDs and oral tissues using silicone registration material. The vast majority of included studies found that the fit of RPDs ranged from satisfactory to excellent fit. Conclusion: Despite the lack of clinical trials that provide strong evidence, the available evidence supported the claim of good fit of RPDs fabricated by new technologies using CAD/CAM. PMID- 29332105 TI - The emergence of carbapenem-resistant Klebsiella pneumoniae isolates producing OXA-48 and NDM in the Southern (Asir) province, Saudi Arabia. AB - OBJECTIVES: To identify the prevalence of carbapenem-resistant Klebsiella pneumoniae (CRKP) and the most common types of cabapenemases among CRKP in the Southern (Asir) province hospitals, Saudi Arabia. Methods: The cross-sectional study was conducted between late April and September in 2015. A total of 54 Klebsiella pneumoniae (K. pneumoniae) isolates with reduced sensitivity to carbapenems were obtained from various clinical specimens of the 2 largest hospitals in the Southern province. Minimum inhibitory concentrations (MICs) of carbapenems were confirmed using E-test. Molecular detection of the most common carbapenemase genes (blaIMP, bla-carbapenem-hydrolyzing oxacillinase [OXA-48], blaVIM, bla-New Delhi metallo-beta-lactamas [NDM], and blaKPC) was performed using multiplex-polymerase chain reaction. Results: The current study found that increasing age and intensive care unit admission were associated with CRKP isolation. The major type of carbapenemases was OXA-48 with 81.5% (n=44) and it seems to reach an endemic level. New Delhi metallo-beta-lactamas (NDM) was the second most frequent carbapenemase by 7.4% (n=4) of isolates while Verona integron-encoded metallo-beta-lactamase (VIM) was reported only in one isolate. Conclusion: Saudi Arabia receives large numbers of visitors and migrant workers from OXA-48 and NDM endemic countries such as Turkey, India, and Pakistan every year. PMID- 29332106 TI - Single-center experience in the surgical treatment of combined lung Echinococcosis. AB - OBJECTIVES: To compare results of surgical treatment and complications of patients with unilateral or bilateral thoracic and combined pulmonary echinococcosis. METHODS: This cross-sectional analysis of a prospective study was conducted in the Department of Thoracic and Pediatric Surgery, Scientific Center of Surgery, Almaty, Kazakhstan among 598 patients with pulmonary echinococcosis, who had surgical treatment with various surgical methods, depending on the prevalence of echinococcosis, as follows: right lung in 357 (59.5%) patients, left lung in 243 (40.5%) patients, bilateral in 95 (15.8%) patients, and complicated echinococcosis in 317 (52.8%) patients. Length of stay per hospital stay has been decreased (p less than 0.0001) by video-thoracoscopic echinococcectomy with the high-energy laser (HEL) treatment of cyst, than after echinococcectomy by cyst treatment with povidone-iodine. Treatment with formalin presented the most longest hospital stay (p less than 0.0001). RESULTS: Comparative analysis of patients with uncomplicated and complicated pulmonary echinococcosis showed a high frequency of postoperative complications associated with complicated echinococcosis (OR = 2.2, p less than 0.0001). Conclusion: Despite the success of surgical treatment of pulmonary echinococcosis, issues of intraoperative dissemination and safety remain, and treatment success rates can be improved. These factors require further prospective multicenter studies. PMID- 29332107 TI - The sleep architecture of Saudi Arabian patients with Kleine-Levin syndrome. AB - OBJECTIVES: To establish baseline sleep architecture during an acute attack of Kleine-Levin syndrome (KLS) in a cohort of Saudi Arabian KLS patients and compare these characteristics with other published cohorts. Methods: This was a retrospective cohort study of the polysomnographic characteristics of 10 typical symptomatic Saudi Arabian KLS patients attending the University Sleep Disorders Center, King Saud University, Riyadh, Saudi Arabia between 2002 and 2015. Data were captured by nocturnal polysomnography during an acute attack of hypersomnia and compared with other published cohorts identified via a systematic literature search. Results: Self-reported time asleep during episodes (11.1+/-6.7 hours) and recorded total sleep time (TST) (322.5+/-108.7 minutes) were generally shorter than other published cohorts. Sleep efficiency was poor at 75.0%+/-25.1%, with low relative amounts of rapid eye movement (REM) sleep (16.5+/-5.9% of TST) and deep non-REM sleep (stage N3; 10.5+/-6.0% of TST) and high relative amounts of non-REM sleep (stage N1; 7.0+/-4.3% of TST). The sleep architecture of Saudi Arabian KLS patients was similar to other published cohorts. Conclusions: Sleep architecture of our cohort was relatively normal and broadly similar to other published studies, the main features being low sleep efficiency and low relative amounts of REM and stage N3 sleep. Time-course polysomnography studies with functional imaging may be useful to further establish the exact pathophysiology of this disease. PMID- 29332108 TI - Impact of body mass index on high blood pressure among obese children in the western region of Saudi Arabia. AB - OBJECTIVES: To evaluate the impact of body mass index (BMI) on high blood pressure among obese children and adolescents in western region, Saudi Arabia. Methods: Cross-sectional data were obtained from 306 (female: 140, male: 166) child, between August 2016 and March 2017. A questioner was filled by health professionals at ambulatory pediatric clinic followed by waist-hip circumference, height, weight, and blood pressure measurement. Diastolic blood pressure (DBP) and systolic blood pressure (SBP) were adjusted to gender, height, and age. World Health Organization growth standards were used to calculate BMI z-scores. Results: The mean age of subjects was 10.1 years. Body mass index increased SBP by 1.722 mmHg (p=0.001), and DBP by 0.901 mmHg (p=0.006) in boys, and 0.969 mmHg (p=0.036), and DBP by 0.704 mmHg (p=0.045) in girls. Waist hip ratio showed significant difference p=0.041, (p=0.0001) between male and female. Of the baseline characteristics, age greater than 11 years showed significant difference. Symptomatic manifestation of high blood pressure, family history of hypertension, level of activity, income level and post-secondary education in parents, did not show any significant results. Conclusion: Elevated BMI is associated with significantly increased diastolic and systolic blood pressure in obese children, especially in children older than 11 years. PMID- 29332109 TI - Prevalence of attention deficit hyperactivity disorder and comorbid psychiatric and behavioral problems among primary school students in western Saudi Arabia. AB - OBJECTIVES: To determine the prevalence of attention deficit hyperactivity disorder (ADHD), subtypes of ADHD, and psychiatric, academic, and behavioral comorbidity in public primary school students in Jeddah, Saudi Arabia. Methods: This is a cross-sectional study. A simple random sample of 6 primary government schools in Jeddah, Saudi Arabia, was identified (3 male, 3 female), and a random sample of classes in each of grades 1-6 were selected. Between July and November 2016, teachers in these classes were asked to complete the Vanderbilt ADHD scale on all students in their classes. Results: A total of 929 students were screened. The overall prevalence of ADHD was 5% (5.3% in girls, 4.7% in boys). The most prevalent subtype of ADHD was combined type (2.7%), followed by hyperactive type (1.2%), and inattentive type (1.1%). The highest prevalence of ADHD overall was in grade 3 (7.1%) and the lowest prevalence in grade 6 (3.4%). Among students with ADHD, prevalence of comorbid psychiatric, academic, and behavioral problems was widespread (56.5% oppositional defiant disorder/conduct disorder, 54.4% impaired academic performance, 44.4% classroom behavioral problems, 41.3% depression/anxiety). Comorbid problems were especially prevalent in combined ADHD subtype and in boys. Conclusions: Attention deficit hyperactivity disorder is common in primary school children in Jeddah, and is associated with widespread psychiatric, academic, and behavioral problems, especially in boys. These findings have implications for the diagnosis and treatment of this serious neurobehavioral disorder. PMID- 29332111 TI - Prevalence of menstrual problems and their association with psychological stress in young female students studying health sciences. AB - OBJECTIVES: To identify the prevalence of various menstrual problems in young females studying health sciences and to identify their association with academic stress. Methods: This was a cross-sectional study, conducted in the health colleges of Immam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia between February 2015 and February 2016. Seven hundred and thirty-eight female students aged 18-25 years anonymously completed menstrual problem identification and perceived stress scale questionnaire. The data was analyzed using the Statistical Package for Social Sciences version 16.0. Results: Ninety-one percent of the students were suffering from some kind of menstrual problem. The different menstrual problems reported, and their incidences included irregular menstruation (27%), abnormal vaginal bleeding (9.3%), amenorrhea (9.2%), menorrhagia (3.4%), dysmenorrhea (89.7%), and premenstrual symptoms (46.7%). High perceived stress (HPS) was identified in 39% of the students. A significant positive correlation was found between HPS and menstrual problems. Students with HPS had 4 times, 2 times, and 2.8 times increased odds ratio for experiencing amenorrhea, dysmenorrhea, and premenstrual syndrome (p less than 0.05). Conclusion: The most prevalent menstrual problems (dysmenorrhea and premenstrual symptoms) in the target population were strongly associated with stress. Therefore, it is recommended that health science students should be provided with early psychological and gynecological counselling to prevent future complications. PMID- 29332110 TI - Association of psychological stress with skin symptoms among medical students. AB - OBJECTIVES: To evaluate the association between psychological stress and skin symptoms among medical students. Methods: A cross-sectional study was carried out between January and June 2015. Electronic survey consists of Perceived Stress Questionnaire (PSQ) and Self-Reported Skin Complaints Questionnaire were distributed to all 1435 undergraduate students at College of Medicine, King Saud University (KSU), Riyadh, Saudi Arabia. Results: Final analysis was performed on data from 529 (36.9%) students. Students were divided into three groups: least stressed students, n=135, PSQ index less than 0.39; highly stressed students, n=136, PSQ index greater than 0.61; and moderately stressed students, n=258. Older age, female gender, during exam weeks, and fourth and fifth years of medical school (all p less than 0.01) were associated with the highest perceived stress levels. When compared to least stressed students, highly stressed students suffered from more oily, waxy patches or flakes on scalp (p<=0.0001), dry/sore rash (p<=0.0001), warts (p<=0.0001), pimples (p<=0.0001), itchy skin (p<=0.0001), hands itchy rash (p<=0.0001), hair loss (p<=0.0001), pull-out own hair (p=0.008), scaly skin (p=0.012), troublesome sweating (p=0.016), nails biting (p=0.028), and other rashes on face (p= 0.028). Conclusion: Various common skin conditions could appear in context of psychological stress among medical students. PMID- 29332112 TI - Evaluation of effectiveness of peer education on smoking behavior among high school students. AB - OBJECTIVES: To evaluate the effectiveness of peer education on changing the smoking behavior of high schoolage children's. Methods: In this interventional study; transtheoretical model, which is one of the cognitive-behavioral models was used for application of the peer education. Study was conducted in Izmir during 2011-2012 education period and included 338 students from 2 high schools The independent variable of the study is peer training. Descriptive variables for a student are age, gender, tendecy of friends to smoke inside and outside the school, the age they have first experienced the habit, reasons for nicotine consumption, levels of addiction, chatting about smoking and related harms. Family descriptive variables are education level of parents and whether their smoking tendency is present or not. Results: Approximately 18.3% of the students were current smoker. A positive behavioral change of smoking quitting among smoker students was observed after peer education. The number of students in precontemplation stage was reduced while the number of students in stages of preparation/determination action and maintenance was increased. Conclusion: Peer education was observed to be an effective method in the behavioral change of smoking teens. Authors strongly suggest peer education to be one of the preferred tools in changing the teen behavior in use of tobacco. PMID- 29332113 TI - Changes in the temporomandibular joint disc and temporal and masseter muscles secondary to bruxism in Turkish patients. AB - OBJECTIVES: To analyze the relationships between temporalis and masseter muscle hypertrophy and temporomandibular joint (TMJ) disc displacement in patients with severe bruxism using magnetic resonance imaging (MRI). Methods: This retrospective study included 100 patients with severe bruxism, referred to the Department of Oral and Maxillofacial Surgery, University of Marmara and Istanbul Medipol University, Istanbul, Turkey, between January 2015 and December 2016. Patients underwent TMJ MRI with a 1.5-T system in open and closed mouth positions. The masseter and temporalis muscles were measured in the axial plane when the patient's mouth was closed. Results: At its thinnest, the disc averaged was 1.11+/-0.24 mm. At their thickest, the masseter averaged was 13.65+/-2.19 mm and temporalis muscles was 12.98+/-2.4 mm. Of the discs, 24% were positioned normally, 74% were positioned anteriorly, and 2% were positioned posteriorly. The temporalis muscle was significantly thicker in patients with normally positioned discs than in those with anteriorly positioned discs (p=0.035). Conclusions: The temporalis muscle was significantly thicker in patients with normally positioned discs than in those with anteriorly positioned discs (p=0.035). Additional studies should be conducted to evaluate the relationships between all masticatory and surrounding muscles and disc movements in patients with bruxism. PMID- 29332114 TI - Dental arch dimensions, form and tooth size ratio among a Saudi sample. AB - OBJECTIVES: To determine the dental arch dimensions and arch forms in a sample of Saudi orthodontic patients, to investigate the prevalence of Bolton anterior and overall tooth size discrepancies, and to compare the effect of gender on the measured parameters. Methods: This study is a biometric analysis of dental casts of 149 young adults recruited from different orthodontic centers in Jeddah, Saudi Arabia. The dental arch dimensions were measured. The measured parameters were arch length, arch width, Bolton's ratio, and arch form. The data were analyzed using IBM SPSS software version 22.0 (IBM Corporation, New York, USA); this cross sectional study was conducted between April 2015 and May 2016. Results: Dental arch measurements, including inter-canine and inter-molar distance, were found to be significantly greater in males than females (p less than 0.05). The most prevalent dental arch forms were narrow tapered (50.3%) and narrow ovoid (34.2%), respectively. The prevalence of tooth size discrepancy in all cases was 43.6% for anterior ratio and 24.8% for overall ratio. The mean Bolton's anterior ratio in all malocclusion classes was 79.81%, whereas the mean Bolton's overall ratio was 92.21%. There was no significant difference between males and females regarding Bolton's ratio. Conclusion: The most prevalent arch form was narrow tapered, followed by narrow ovoid. Males generally had larger dental arch measurements than females, and the prevalence of tooth size discrepancy was more in Bolton's anterior teeth ratio than in overall ratio. PMID- 29332115 TI - Ultrasound guided transversus abdominis plane block. Postoperative analgesia in children with spinal dysraphism. AB - Pediatric regional anesthesia is widely used to relieve postoperative pain after abdominal surgery. Commonly used techniques of regional anesthesia include lumbar epidural and caudal block. However, the use of central neuraxial blockade has limitations. It is contraindicated in patients with clotting abnormalities, spinal dysraphism with tethered cord syndrome, meningomyelocele, and following spinal surgery with instrumentation. Ultrasound guided transversus abdominis plane block is a new method of regional anesthesia that can be used in settings where central neuraxial blockade is contraindicated. In this study, we present 5 pediatric cases in which major abdominal surgery was performed but central neuraxial blockade could not be carried out due to spinal abnormalities. PMID- 29332116 TI - Applying preventive measures leading to significant reduction of catheter associated urinary tract infections in adult intensive care unit. AB - OBJECTIVES: To determine the impact of applying the best available clinical evidence on the preventive measures to reduce the rate of catheter-associated urinary tract infections (CAUTI) in adult intensive care units (ICU). Methods: Data were collected from adult ICUs (28 beds) from 2008 to 2016. The proper use of silicon catheter, aseptic insertion technique, emptying bag three fourth via close circuit, the use of appropriate size catheter, securing the draining tube on the thigh to keep catheter bag below patient's bladder level and removal of the catheter as early as possible were ensured in all patients. Results: Rate of UTI and urinary catheter utilization ratios were reviewed during the study period. There was a mean of 6,175 catheter days/year for ICU. Despite the overall rise in the urinary catheterization ratio over these years; we observed a significant reduction in the UTI rate per 1000 Urinary catheter days; from 2.3 in 2010 to 0.3 in 2011 and it was sustained through 2016. Conclusion: The monthly rates of CAUTI significantly declined after the enforcement of agreed strategies and interventions to prevent CAUTI rates in adult ICU. PMID- 29332117 TI - Pseudocholinesterase levels in patients under electroconvulsive therapy. AB - OBJECTIVES: In this study, we aimed to retrospectively assess the correlation of pseudocholinesterase (PChE) levels with age, gender, body weight and diagnosed psychiatric diseases in electroconvulsive therapy (ECT) cases. Methods: This retrospective study was conducted at Bulent Ecevit University Hospital, Zonguldak, Turkey, between 2007 and 2011. In the study, 193 ECT case files were retrospectively scanned to evaluate PChE values before ECT and other file information. Results: There was no difference between gender in terms of PChE levels. Correlation analysis determined a weakly positive correlation between age (p=0.013; correlation coefficient [cc]: 0.178) and body weight (p less than 0.001; cc: 0.273) and PChE levels. No correlation was found between age, gender, weight or psychiatric diagnosis, and PChE levels. Conclusion: Neuromuscular blockage is a significant factor that increases patient safety, while increasing the efficacy of ECT. In choosing muscle relaxant agents, both patient factors and the pharmacological properties of the neuromuscular blocker should be considered. We think that in situations with delayed recovery of ECT cases without identified PChE levels, low PChE levels must be considered. PMID- 29332118 TI - Primary extraskeletal mesenchymal chondrosarcoma arising from the iliac vein. AB - [No Abstract Available]. PMID- 29332119 TI - Autofluorescence of Skin Advanced Glycation End Products as a Risk Factor for Open Angle Glaucoma: The ALIENOR Study. AB - Purpose: To analyze the association between skin autofluorescence (sAF), estimating tissue accumulation of advanced glycation end-products (AGEs), and open angle glaucoma (OAG) in an elderly population. Methods: The Antioxydants, Lipides Essentiels, Nutrition and maladies OculaiRes (ALIENOR) study is an on going epidemiologic population-based study on age-related eye diseases. In 2009 to 2010, 624 subjects, aged 74 years or older, were recruited. All subjects underwent a complete eye examination, including optic disc color photography and spectral-domain optical coherence tomography (SD-OCT) examination. Sociodemographic and medical history data were collected using standardized questionnaires. Glaucoma diagnosis was made using optic nerve head retinophotography and International Society for Epidemiologic and Geographical Ophthalmology criteria. sAF was measured with a noninvasive autofluorescence reader in 467 subjects. Results: Of subjects, 455 had complete data, 424 were classified as controls, and 31 classified as OAG. Mean age was 82.3 +/- 4.3 years, mean and median sAF were 2.8 +/- 0.7 and 2.7 arbitrary units (AU), respectively. In a multivariate analysis, higher sAF values (>=2.7 AU) were associated with OAG (odds ratio [OR] = 2.28, 95% Confidence Interval [CI]: 1.03; 5.04). Other variables significantly associated with OAG were age (OR = 1.10, 95%CI: 1.00; 1.21), glaucoma family history (OR = 2.83, 95%CI: 1.14; 7.01) and smoking (1-20 pack-years [OR = 3.31, 95%CI: 1.18; 9.26]; >=20 pack-years [OR = 3.85, 95%CI: 1.42; 10.46]). Conclusions: Higher level of sAF, which may act as a long-term biomarker of metabolic memory, and smoking are independently associated with an increased risk of glaucoma. Long-term accumulation of AGEs, a marker of oxidative stress, could play a role in the pathogenesis of glaucomatous chronic optic neuropathy. PMID- 29332121 TI - Pattern Onset ERGs and VEPs Produced by Patterns Arising From Light Increment and Decrement. AB - Purpose: Our aim was to elaborate how on and off signals contribute to pattern ERGs and pattern visual evoked potentials (VEPs) by using pedestal patterns arising from incremental and decremental onset stimulation. Methods: Pattern onset/offset ERGs and VEPs were produced by black and white checks of 60' side length and 88% spatial contrast appearing in a 16 degrees field for 200 ms from white (110 cd/m2), black (7 cd/m2), and gray (48 cd/m2) backgrounds and disappeared for 1000 ms. Twenty healthy subjects participated in the study (median age 19.5, range, 5-31 years), 10 of whom also underwent pattern onset/offset ERG recordings to the same stimuli (median age 25.7, range, 22-31 years). VEPs were recorded from an occipital array referred to Fz. Pattern electroretinograms (PERGs) were recorded from "Dawson-Trick-Litzkow" (DTL) plus corneal electrodes referred to ipsilateral outer canthi. Results: There was high correlation within subjects of the VEP waveform produced by patterns arising from light increment and decrement (group mean correlation coefficient of PVEPs to check appearance from black versus white: 87%). An average of increment and decrement PERGs simulated the onset PERG from a gray background. This waveform is akin to standard International Society for Clinical Electrophysiology of Vision (ISCEV) clinical PERGs to reversing checks. Conclusions: In healthy individuals, the early components of the pattern onset/offset VEP waveforms are comparable to light increment and decrement pedestal stimulation. Pattern onset/offset ERGs to pedestal stimulation may be used to probe simultaneous recording of ERGs with VEPs in order to obtain an assessment of retinal ganglion cell and optic pathway function in patients with less stable fixation. PMID- 29332120 TI - Severe Loss of Tritan Color Discrimination in RPE65 Associated Leber Congenital Amaurosis. AB - Purpose: RPE65-associated Leber congenital amaurosis (RPE65-LCA) is a progressive severe retinal dystrophy with early profound dysfunction of rod photoreceptors followed by progressive cone photoreceptor degeneration. We aim to provide detailed information about how cone dysfunction affects color discrimination. Methods: Seven adults (aged 16-21) with RPE65-LCA underwent monocular color discrimination assessment using the Trivector and Ellipse versions of three computerized tests: Cambridge Colour Test (CCT), low vision version of the Cambridge Colour Test (lvvCCT), and the Universal Colour Discrimination Test (UCDT). For comparison, subjects were also tested using the American Optical Hardy Rand Rittler (AO-HRR) plates. Each assessment was repeated three times. Results: The Trivector version of the tests demonstrated that color discrimination along the tritan axis was undetectable in four subjects, and severely reduced in three subjects. These findings were confirmed by the Ellipse version of the tests. Color discrimination along the protan and deutan axes was evident but reduced in six of seven subjects. Four of seven subjects were unable to read any of the HRR plates. Conclusions: The computerized color vision tests adopted in this study provide detailed information about color discrimination in adult RPE65-LCA patients. The condition is associated with severe impairment of color discrimination, particularly along the tritan axis indicating possible early involvement of S-cones, with additional protan and deutan loss to a lesser extent. This psychophysical assessment strategy is likely to be valuable in measuring the impact of therapeutic intervention on cone function. PMID- 29332122 TI - Quantitative Study of the Macular Microvasculature in Human Donor Eyes. AB - Purpose: To precisely quantify the macular microvasculature density using microperfusion and labeling techniques in human donor eyes. Such information may be useful in understanding the role of the macular microvasculature in coping with the metabolic requirements of the neurons in this densely packed region, and provide a reference point for clinical studies using recently developed optical imaging techniques. Methods: The macular microvasculature was perfusion-labeled in 18 human donor eyes and optical stacks collected from regions superior, temporal, inferior, and nasal to the foveola using confocal microscopy. The optical slices were separated into the deep macula vascular layer (DL), and the superficial layer (SL) in which all the vessels superficial to the deep macular vessel layer were included. The DL and SL images were analyzed and vessel density measured according to their orientation from the foveola and in foveal and parafoveal regions. Vessel densities were compared across regions and age groups. Results: Both the SL and DL showed an increase in vessel density with increasing eccentricity from the foveal to parafoveal regions. Vessel density was found to rank in the order of inferior > superior > temporal > nasal in both SL and DL layers. The SL vascular density was approximately 31%, whereas DL was approximately 17%. The DL was planar in nature and density not affected by age. Age-related increase in vessel density was observed in the SL. Conclusions: Microperfusion and labeling techniques in combination with confocal microscopy has enabled collection of reliable data on vascular density in the macula region. Regional differences may reflect well-matched vascular supply and neuronal demands. Age-related changes might indicate the importance of stable blood supply for the human macula. PMID- 29332123 TI - BRAF, NRAS, and GNAQ Mutations in Conjunctival Melanocytic Nevi. AB - Purpose: To evaluate BRAF, NRAS, and GNAQ mutations in surgical specimens of common and blue conjunctival melanocytic nevi. Methods: Surgical specimens from 25 conjunctival melanocytic nevi (23 common and 2 blue) of 25 patients were evaluated. All common nevi were analyzed immunohistochemically for the expression of BRAF V600E or NRAS Q61R. One lesion with negative immunoreactivity and for all blue nevi, a hybridization capture-based next-generation sequencing method was employed for mutation analysis. For common nevi, genetic features were compared with clinical and histopathologic findings. Continuous variables (age at excision and largest basal diameter) were compared with a Students's t-test and all categoric variables were compared with Fisher's Exact Test. Results: Of common melanocytic nevi, 9 (39.1%) were immunoreactive for NRASQ61R and 13 (56.5%) were immunoreactive for BRAFV600E. One common nevus, which was immunonegative for both BRAFV600E and NRASQ61R was found to harbor an NRASQ61K mutation by sequence analysis. Patients with NRAS-mutated nevi were more likely to report occurrence of the lesion prior to 18-years old and more likely to have intrinsic cysts. The mean largest basal diameter was 6.0 and 3.5 mm for NRAS- and BRAF-immunoreactive lesions, respectively (P = 0.003). GNAQ mutations were identified in each of the two blue nevi of this study. Conclusions: These findings document that common conjunctival melanocytic nevi have mutually exclusive mutations in BRAF and NRAS. The two conjunctival blue nevi harbored GNAQ mutations. This suggests the driver mutations of conjunctival nevi are similar to those of nevi of the skin. At the molecular level, conjunctival nevi appear more like cutaneous nevi than choroidal nevi. PMID- 29332124 TI - Optimal Audiovisual Integration in the Ventriloquism Effect But Pervasive Deficits in Unisensory Spatial Localization in Amblyopia. AB - Purpose: Classically understood as a deficit in spatial vision, amblyopia is increasingly recognized to also impair audiovisual multisensory processing. Studies to date, however, have not determined whether the audiovisual abnormalities reflect a failure of multisensory integration, or an optimal strategy in the face of unisensory impairment. We use the ventriloquism effect and the maximum-likelihood estimation (MLE) model of optimal integration to investigate integration of audiovisual spatial information in amblyopia. Methods: Participants with unilateral amblyopia (n = 14; mean age 28.8 years; 7 anisometropic, 3 strabismic, 4 mixed mechanism) and visually normal controls (n = 16, mean age 29.2 years) localized brief unimodal auditory, unimodal visual, and bimodal (audiovisual) stimuli during binocular viewing using a location discrimination task. A subset of bimodal trials involved the ventriloquism effect, an illusion in which auditory and visual stimuli originating from different locations are perceived as originating from a single location. Localization precision and bias were determined by psychometric curve fitting, and the observed parameters were compared with predictions from the MLE model. Results: Spatial localization precision was significantly reduced in the amblyopia group compared with the control group for unimodal visual, unimodal auditory, and bimodal stimuli. Analyses of localization precision and bias for bimodal stimuli showed no significant deviations from the MLE model in either the amblyopia group or the control group. Conclusions: Despite pervasive deficits in localization precision for visual, auditory, and audiovisual stimuli, audiovisual integration remains intact and optimal in unilateral amblyopia. PMID- 29332126 TI - Erratum. PMID- 29332127 TI - Proteome Profiling of Developing Murine Lens Through Mass Spectrometry. AB - Purpose: We previously completed a comprehensive profile of the mouse lens transcriptome. Here, we investigate the proteome of the mouse lens through mass spectrometry-based protein sequencing at the same embryonic and postnatal time points. Methods: We extracted mouse lenses at embryonic day 15 (E15) and 18 (E18) and postnatal day 0 (P0), 3 (P3), 6 (P6), and 9 (P9). The lenses from each time point were preserved in three distinct pools to serve as biological replicates for each developmental stage. The total cellular protein was extracted from the lens, digested with trypsin, and labeled with isobaric tandem mass tags (TMT) for three independent TMT experiments. Results: A total of 5404 proteins were identified in the mouse ocular lens in at least one TMT set, 4244 in two, and 3155 were present in all three TMT sets. The majority of the proteins exhibited steady expression at all six developmental time points; nevertheless, we identified 39 proteins that exhibited an 8-fold differential (higher or lower) expression during the developmental time course compared to their respective levels at E15. The lens proteome is composed of diverse proteins that have distinct biological properties and functional characteristics, including proteins associated with cataractogenesis and autophagy. Conclusions: We have established a comprehensive profile of the developing murine lens proteome. This repository will be helpful in identifying critical components of lens development and processes essential for the maintenance of its transparency. PMID- 29332128 TI - Pharmacologic Characterization of Omidenepag Isopropyl, a Novel Selective EP2 Receptor Agonist, as an Ocular Hypotensive Agent. AB - Purpose: The objective of this study was to investigate the pharmacologic characteristics of omidenepag isopropyl (OMDI), a compound developed as a novel intraocular pressure (IOP)-lowering agent, with better IOP control and fewer side effects than other prostanoid receptor agonists such as prostaglandin F receptor (FP) agonists. Methods: Binding activities of OMDI and its hydrolyzed form, omidenepag (OMD), to human recombinant prostanoid receptors (DP1-2, EP1-4, FP, and IP) were evaluated. Based on these binding assays, the agonistic activities of OMDI and OMD were further evaluated using cultured cells expressing selected prostanoid receptors. The pharmacokinetics of OMDI after topical administration was assessed in rabbits by measurement of the concentrations of both OMDI and OMD in aqueous humor. The ocular hypotensive effect of OMDI was evaluated in ocular normotensive rabbits, dogs, and both ocular normotensive and hypertensive monkeys. Results: OMD was determined to be a selective EP2 receptor agonist. OMDI weakly bound to EP1; however, the agonistic activity of OMDI to this receptor was not demonstrated in the functional assay. After topical administration of OMDI, OMD was detected in aqueous humor whereas OMDI was not detectable. OMDI significantly lowered IOP in both ocular normotensive and hypertensive animals. The significant ocular hypotensive effects of OMDI were demonstrated by both single and repeated dosing, and its effective duration suggests sufficient efficacy by once-daily dosing. Conclusions: These studies demonstrated that OMDI is hydrolyzed in the eye to OMD, an EP2 receptor agonist, with a significant ocular hypotensive effect in both ocular normotensive and hypertensive animal models. PMID- 29332125 TI - ICG-001 Exerts Potent Anticancer Activity Against Uveal Melanoma Cells. AB - Purpose: Uveal melanoma (UM) is uniformly refractory to all available systemic chemotherapies, thus creating an urgent need for novel therapeutics. In this study, we investigated the sensitivity of UM cells to ICG-001, a small molecule reported to suppress the Wnt/beta-catenin-mediated transcriptional program. Methods: We used a panel of UM cell lines to examine the effects of ICG-001 on cellular proliferation, migration, and gene expression. In vivo efficacy of ICG 001 was evaluated in a UM xenograft model. Results: ICG-001 exerted strong antiproliferative activity against UM cells, leading to cell cycle arrest, apoptosis, and inhibition of migration. Global gene expression profiling revealed strong suppression of genes associated with cell cycle proliferation, DNA replication, and G1/S transition. Gene set enrichment analysis revealed that ICG 001 suppressed Wnt, mTOR, and MAPK signaling. Strikingly, ICG-001 suppressed the expression of genes associated with UM aggressiveness, including CDH1, CITED1, EMP1, EMP3, SDCBP, and SPARC. Notably, the transcriptomic footprint of ICG-001, when applied to a UM patient dataset, was associated with better clinical outcome. Lastly, ICG-001 exerted anticancer activity against a UM tumor xenograft in mice. Conclusions: Using in vitro and in vivo experiments, we demonstrate that ICG-001 has strong anticancer activity against UM cells and suppresses transcriptional programs critical for the cancer cell. Our results suggest that ICG-001 holds promise and should be examined further as a novel therapeutic agent for UM. PMID- 29332129 TI - Aspergillus fumigatus Increased PAR-2 Expression and Elevated Proinflammatory Cytokines Expression Through the Pathway of PAR-2/ERK1/2 in Cornea. AB - Purpose: To determine the role of protease-activated receptor-2 (PAR-2) in cornea infected by Aspergillus fumigatus. Methods: PAR-2 was tested in normal and infected corneas of C57BL/6 mice. Mice corneas were infected with A. fumigatus with or without pretreatment of PAR-2 antagonist (FSLLRY-NH2). Polymorphonuclear neutrophilic leukocytes (PMNs) were stimulated with 75% ethanol-killed A. fumigatus with or without pretreatment of FSLLRY-NH2. Disease severity was documented by clinical score and photographs with a slit lamp. PCR, Western blot, and ELISA tested expression of PAR-2, IL-1beta, TNF-alpha, IFN-gamma, MIP-2, and p-ERK1/2. PMN infiltration was assessed by myeloperoxidase assay and immunofluorescent staining. Results: PAR-2 expression was significantly elevated by A. fumigatus, whereas the upregulation was significantly inhibited by FSLLRY NH2 in mice corneas. FSLLRY-NH2 decreased disease response, PMN infiltration, and proinflammatory cytokine expression compared with infected control. In PMNs, PAR 2 expression was also significantly increased by A. fumigatus, which was significantly inhibited by FSLLRY-NH2. FSLLRY-NH2 significantly inhibited proinflammatory cytokine protein expression, as compared with that in infected control cells, which may be modified by p-ERK1/2. Conclusions: These data provide evidence that A. fumigatus increased PAR-2 expression and elevated disease, PMN infiltration, and proinflammatory cytokine expression through PAR-2, which may be modified by p-ERK1/2. PMID- 29332131 TI - Assessment of Human Corneas Prior to Transplantation Using High-Resolution Two Photon Imaging. AB - Purpose: The purpose of this study was to evaluate the feasibility of using two photon imaging (TPI) to assess the condition of human corneas for transplantation. Methods: Human corneas were imaged after different storage times: short-term (STS), medium-term (MTS), and long-term (LTS) storage. A high resolution, custom-built 5-dimensional multiphoton microscope with 12-fs pulsed laser excitation was used for image acquisition. Results: Optical discrimination between different corneal layers and sublayers based on their morphologic characteristics revealed by two-photon autofluorescence (AF) is possible. Furthermore, all layers were characterized based on AF lifetimes to gain information on metabolic activities of cells. The NAD(P)H free to protein-bound ratio (a1/a2) of epithelial cells increased significantly in both MTS and LTS corneas compared with STS corneas. In endothelial cells, NAD(P)H a1/a2 was significantly increased in MTS samples. For keratocytes, the NAD(P)H a1/a2 decreased significantly with storage time. This could indicate that the metabolic activity of the epithelial and endothelial cells reduces, whereas the activity of keratocytes increases with storage time. The analysis of the stroma SHG images indicated that the organization of collagen fibers decreases with storage time. The feasibility of measuring the endothelial cell density (ECD) using TPI was demonstrated. An ECD of 1461 +/- 190 cells/mm2 was obtained for MTS samples based on TPI. Conclusions: TPI can provide information not accessible by current clinical methods, such as the cells' metabolic state and structural organization of the stroma, with subcellular resolution. Thus, it may improve the screening process of corneas prior to transplantation and might help to optimize the storage conditions. PMID- 29332132 TI - Reply to Zamani and Hassanian-Moghaddam, 2017: being specific and targeting disease-causing pathology matter in therapeutics. PMID- 29332130 TI - Cerebrospinal Fluid Pressure: Revisiting Factors Influencing Optic Nerve Head Biomechanics. AB - Purpose: To model the sensitivity of the optic nerve head (ONH) biomechanical environment to acute variations in IOP, cerebrospinal fluid pressure (CSFP), and central retinal artery blood pressure (BP). Methods: We extended a previously published numerical model of the ONH to include 24 factors representing tissue anatomy and mechanical properties, all three pressures, and constraints on the optic nerve (CON). A total of 8340 models were studied to predict factor influences on 98 responses in a two-step process: a fractional factorial screening analysis to identify the 16 most influential factors, followed by a response surface methodology to predict factor effects in detail. Results: The six most influential factors were, in order: IOP, CON, moduli of the sclera, lamina cribrosa (LC) and dura, and CSFP. IOP and CSFP affected different aspects of ONH biomechanics. The strongest influence of CSFP, more than twice that of IOP, was on the rotation of the peripapillary sclera. CSFP had similar influence on LC stretch and compression to moduli of sclera and LC. On some ONHs, CSFP caused large retrolamina deformations and subarachnoid expansion. CON had a strong influence on LC displacement. BP overall influence was 633 times smaller than that of IOP. Conclusions: Models predict that IOP and CSFP are the top and sixth most influential factors on ONH biomechanics. Different IOP and CSFP effects suggest that translaminar pressure difference may not be a good parameter to predict biomechanics-related glaucomatous neuropathy. CON may drastically affect the responses relating to gross ONH geometry and should be determined experimentally. PMID- 29332134 TI - Breast cancer survivorship: state of the science. AB - PURPOSE: Only recently has breast cancer survivorship earned formal recognition as a research discipline. Complicating survivorship research is the frequent overlap between aging and treatment sequelae. The ACS/ASCO 2016 Breast Cancer Survivorship Care Guideline (Guideline) reflects comprehensive literature review through April 2015, while the jointly sponsored, inaugural Cancer Survivorship Symposium in 2016 (Symposium) reflects ongoing research activity in the area. Together, these platforms provide an opportunity to examine the use of randomized trials and controlled studies in survivorship care research. METHODS: All 236 citations from the Guideline and all 250 abstracts from the Symposium were reviewed independently by two authors and assigned to prospectively determined categories. RESULTS: Guideline citations were most frequently reviews (n = 88, 37.3%) and non-randomized, non-controlled studies (n = 51, 21.6%). Thirty-seven (15.7%) randomized trials were cited. Only 9% of Guideline recommendations were based on randomized clinical trial evidence, while 64% were based on evidence level "0" (expert opinion, clinical practice, etc.). Symposium abstracts consisted largely of non-randomized, non-controlled studies (n = 113, 45.2%), with ten completed randomized trials (4%). Few Guideline citations or Symposium abstracts incorporated matched, cancer-free controls. CONCLUSIONS: Based on the literature underlying the ASCO Guideline as well as a survey of the Cancer Survivorship Symposium abstracts, a significant proportion of the survivorship literature at least through 2015 consisted of non-randomized, non-controlled studies. To optimally address survivorship issues, cancer therapy sequelae need to be distinguished from normal aging in studies incorporating cancer-free controls, and randomized clinical trials are needed to inform intervention strategies. PMID- 29332133 TI - Fumarate hydratase (FH) deficiency in uterine leiomyomas: recognition by histological features versus blind immunoscreening. AB - Hereditary leiomyomatosis and renal cell carcinoma (HLRCC) syndrome is a rare autosomal dominant disease caused by germline mutations in the fumarate hydratase (FH) gene. Affected individuals develop cutaneous and uterine leiomyomas and aggressive RCC. To date, only few publications described the frequency and morphology of FH-deficient uterine leiomyomas. We reviewed 22 cases collected over 8 years from routine and consultation files based on distinctive histological features. In addition, we screened 580 consecutive uterine leiomyomas from 484 patients, 23 extra-uterine and 8 uterine leiomyosarcomas, and 6 leiomyomas with bizarre nuclei for FH loss using immunohistochemistry (IHC) on tissue microarrays (TMAs). All 22 FH-deficient cases were suspected on H&E sections and confirmed by FH IHC. Patients' ages ranged from 25 to 70 years (median 36). Seventeen patients had multiple nodules (2-14) measuring up to 11.8 cm. None of the patients had stigmata or family history of the HLRCC syndrome. Histologically, all FH-deficient tumors showed consistent and reproducible features as reported previously. FH loss was detected in 2/534 evaluable leiomyomas (0.4%), but in none of leiomyosarcomas. Two of six leiomyomas with bizarre nuclei were FH-deficient. FH-deficient uterine leiomyomas are rare in routine material (= 0.4%). They can be reliably identified or suspected by consistent morphological features. Our data showed predictive morphology to be superior to blind IHC screening for detecting them. The relationship of FH deficient uterine smooth muscle tumors to the HLRCC syndrome needs further clarification. PMID- 29332136 TI - Consideration of population and cultural factors in American Indian/Alaskan Native (AIAN) research. PMID- 29332135 TI - Sequential versus simultaneous use of chemotherapy and gonadotropin-releasing hormone agonist (GnRHa) among estrogen receptor (ER)-positive premenopausal breast cancer patients: effects on ovarian function, disease-free survival, and overall survival. AB - OBJECTIVE: To investigate ovarian function and therapeutic efficacy among estrogen receptor (ER)-positive, premenopausal breast cancer patients treated with gonadotropin-releasing hormone agonist (GnRHa) and chemotherapy simultaneously or sequentially. METHOD: This study was a phase 3, open-label, parallel, randomized controlled trial (NCT01712893). Two hundred sixteen premenopausal patients (under 45 years) diagnosed with invasive ER-positive breast cancer were enrolled from July 2009 to May 2013 and randomized at a 1:1 ratio to receive (neo)adjuvant chemotherapy combined with sequential or simultaneous GnRHa treatment. All patients were advised to receive GnRHa for at least 2 years. The primary outcome was the incidence of early menopause, defined as amenorrhea lasting longer than 12 months after the last chemotherapy or GnRHa dose, with postmenopausal or unknown follicle-stimulating hormone and estradiol levels. The menstrual resumption period and survivals were the secondary endpoints. RESULT: The median follow-up time was 56.9 months (IQR 49.5-72.4 months). One hundred and eight patients were enrolled in each group. Among them, 92 and 78 patients had complete primary endpoint data in the sequential and simultaneous groups, respectively. The rates of early menopause were 22.8% (21/92) in the sequential group and 23.1% (18/78) in the simultaneous group [simultaneous vs. sequential: OR 1.01 (95% CI 0.50-2.08); p = 0.969; age-adjusted OR 1.13; (95% CI 0.54-2.37); p = 0.737]. The median menstruation resumption period was 12.0 (95% CI 9.3-14.7) months and 10.3 (95% CI 8.2-12.4) months for the sequential and simultaneous groups, respectively [HR 0.83 (95% CI 0.59-1.16); p = 0.274; age-adjusted HR 0.90 (95%CI 0.64-1.27); p = 0.567]. No significant differences were evident for disease-free survival (p = 0.290) or overall survival (p = 0.514) between the two groups. CONCLUSION: For ER-positive premenopausal patients, the sequential use of GnRHa and chemotherapy showed ovarian preservation and survival outcomes that were no worse than simultaneous use. The application of GnRHa can probably be delayed until menstruation resumption after chemotherapy. PMID- 29332137 TI - Variation in guideline-concordant care for elderly patients with metastatic breast cancer in the United States. AB - PURPOSE: Prior studies have identified shortcomings in the quality of care for early-stage breast cancer. Guidelines recommend systemic therapy for metastatic breast cancer (MBC), but few studies have examined guideline concordance for these patients. METHODS: We used Surveillance, Epidemiology, and End Results (SEER)-Medicare data to identify patients aged >= 66 diagnosed in 2010-2011 with de novo MBC who were continuously enrolled in fee-for-service Medicare. We described initial care (within 6 months of diagnosis) for hormone receptor (HR) positive/human epidermal receptor-2 (HER2)-negative, HER2-positive, and triple negative (TN) tumors. We identified factors independently associated with receiving no initial systemic therapy, and compared hospice and hospital utilization for treated versus untreated patients. RESULTS: Among 446 patients, 65% were HR-positive, 21% were HER2-positive, and 14% were TN. Most patients (76.9%) received initial systemic treatment. Among treated HR-positive patients, 15% received chemotherapy as initial treatment; among treated HER2-positive patients, 34% did not receive HER2-targeted initial therapy. Factors independently associated with receiving no initial systemic therapy included older age (ORage continuous/year = 1.08, 95% CI 1.04-1.11), being not married (ORnot married vs. married = 2.87, 95% CI 1.42-5.81), and subtype (ORTN vs. HR+ = 4.95, 95% CI 2.53-9.71). Of patients who did not receive initial systemic therapy, 41.1% did not receive hospice services. CONCLUSIONS: In this population based MBC cohort, almost one quarter did not receive initial systemic therapy and a substantial proportion of treated patients did not receive guideline-concordant first-line therapy. Further research should explore underuse of chemotherapy and HER2-targeted therapies, investigate whether patterns of care are consistent with patient preferences, and identify opportunities to optimize hospice utilization for patients not receiving treatment. PMID- 29332139 TI - Effect of Host Human Products on Natural Transformation in Acinetobacter baumannii. AB - Our previous data show that serum albumin can trigger natural transformation in Acinetobacter baumannii. However, extracellular matrix/basal membrane components, norepinephrine, and mucin did not have a significant effect on this process. Therefore, the effect of human products appears to be albumin specific, as both BSA and HSA have been shown to increase of natural transformation. PMID- 29332140 TI - Identification of Cross Reactive Antigens of C. botulinum Types A, B, E & F by Immunoproteomic Approach. AB - Diseases triggered by microorganisms can be controlled by vaccines, which need neutralizing antigens. Hence, it is very crucial to identify extremely efficient immunogens for immune prevention. Botulism, a fatal neuroparalytic disease, is caused by botulinum neurotoxins produced by the anaerobic, Gram-positive spore forming bacteria, Clostridium botulinum. Food-borne botulism and iatrogenic botulism are caused by botulinum toxin. Wound botulism, infant botulism, and adult intestinal botulism are caused by primarily C. botulinum followed by secondary intoxication. To identify protective antigens, whole cell proteome of C. botulinum type B was separated by two-dimensional gel electrophoresis. 2-D gel of whole cell proteins was probed with hyper immune sera of whole cell proteins of C. botulinum types A, E, and F. Six cross immunoreactive proteins were identified. These immunoreactive proteins will be further tested for developing vaccines and serodiagnostic markers against botulism. PMID- 29332142 TI - Purification and characterization of a novel organic solvent-tolerant and cold adapted lipase from Psychrobacter sp. ZY124. AB - By screening 25 different psychrophilic strains isolated from the Arctic habitat, we isolated a strain capable of producing lipase. We identified this strain as Psychrobacter sp. ZY124 based on the amplified 16S rDNA sequence. The lipase, named as Lipase ZC12, produced from the supernatant of Psychrobacter sp. ZY124 cultured at 15 degrees C was purified to homogeneity by ammonium sulfate precipitation followed by Phenyl Sepharose FF gel hydrophobic chromatography. Based on the obtained amino acid sequence, Lipase ZC12 is classified as a member of the Proteus/psychrophilic subfamily of lipase family I.1; it has a molecular weight of 37.9 kDa. We also determined that the apparent optimum temperature for Lipase ZC12 activity is 40 degrees C. Lipase ZC12 shows remarkable organic solvent tolerance by remaining more 50% after incubated with 10-90% different organic solvents. In addition, acyl chain esters with C12 or longer were confirmed to be preferable substrates for Lipase ZC12. Lipase ZC12 also shows better stereoselectivity for (R, S)-1-phenylethanol chiral resolution in n-hexane solvent with (S)-1-phenylethanol (eep 92%) and conversion rate (39%) by transesterification reactions. These properties may provide potential applications in biocatalysis and biotransformation in non-aqueous media, such as in detergent, transesterification or esterification and chiral resolution. PMID- 29332141 TI - Cultivable fungi present in Antarctic soils: taxonomy, phylogeny, diversity, and bioprospecting of antiparasitic and herbicidal metabolites. AB - Molecular biology techniques were used to identify 218 fungi from soil samples collected from four islands of Antarctica. These consisted of 22 taxa of 15 different genera belonging to the Zygomycota, Ascomycota, and Basidiomycota. Mortierella, Antarctomyces, Pseudogymnoascus, and Penicillium were the most frequently isolated genera and Penicillium tardochrysogenum, Penicillium verrucosus, Goffeauzyma gilvescens, and Mortierella sp. 2 the most abundant taxa. All fungal isolates were cultivated using solid-state fermentation to obtain their crude extracts. Pseudogymnoascus destructans, Mortierella parvispora, and Penicillium chrysogenum displayed antiparasitic activities, whilst extracts of P. destructans, Mortierella amoeboidea, Mortierella sp. 3, and P. tardochrysogenum showed herbicidal activities. Reported as pathogenic for bats, different isolates of P. destructans exhibited trypanocidal activities and herbicidal activity, and may be a source of bioactive molecules to be considered for chemotherapy against neglected tropical diseases. The abundant presence of P. destructans in soils of the four islands gives evidence supporting that soils in the Antarctic Peninsula constitute a natural source of strains of this genus, including some P. destructans strains that are phylogenetically close to those that infect bats in North America and Europe/Palearctic Asia. PMID- 29332138 TI - Pathophysiology of Eosinophilic Esophagitis. AB - Eosinophilic esophagitis (EoE) is a chronic inflammatory disease of the esophagus associated with an atopic predisposition which appears to be increasing in prevalence over the last few decades. Symptoms stem from fibrosis, swelling, and smooth muscle dysfunction. In the past two decades, the etiology of EoE has been and is continuing to be revealed. This review provides an overview of the effects of genetics, environment, and immune function including discussions that touch on microbiome, the role of diet, food allergy, and aeroallergy. The review further concentrates on the pathophysiology of the disease with particular focus on the important concepts of the molecular etiology of EoE including barrier dysfunction and allergic hypersensitivity. PMID- 29332143 TI - Conjunction of G-quadruplex and stem-loop in the 5' untranslated region of mouse hepatocyte nuclear factor 4-alpha1 mediates strong inhibition of protein expression. AB - Hepatocyte nuclear factor 4-alpha (HNF4alpha) is a well-established master regulator of liver development and function. Restoration of HNF4alpha can treat multiple liver disorders and liver cancers. To date, HNF4alpha is still "undruggable" due to lack of known activating ligands. Thus, understanding the regulatory mechanism of HNF4alpha expression may help develop an alternative approach to modulate HNF4alpha protein levels. G-quadruplexes (G4) are non canonical stable secondary structures discovered mostly in the promoters of oncogenes. Recent genome-wide studies demonstrate the enrichment of G4s in the 5' untranslated region (UTR). By protoporphyrin IX-binding assay and circular dichroism spectrum, we validated the presence of a chemically highly stable 4 ring G4 within the 5' UTR of mouse Hnf4a1. Our real-time PCR and Western blot data showed that the Hnf4a1 5' UTR caused a remarkable translational suppression regardless of a moderate effect on Hnf4a1 mRNA levels. The subsequent deletion/mutation analysis of Hnf4a1 5' UTR using dual-luciferase reporter assays further demonstrated that although the disruption of the chemically highly stable 4-ring G4 resulted in a marked attenuation of inhibition, the G4 alone only weakly inhibited translation. Likewise, disruption of a long stem-loop adjacent to the 4-ring G4 markedly attenuated translational inhibition, although the stem loop alone only exerted a weak inhibitory effect. Thus, the tight conjunction of G4s and an adjacent stem-loop within the Hnf4a1 5' UTR was both necessary and sufficient to mediate the very strong translational repression. Our results establish a novel working model that a chemically stable G4 may require co factors to be bio-stable for exerting biological functions. PMID- 29332146 TI - Mercury Concentrations in Northern Two-Lined Salamanders from Stream Ecosystems in Garrett County, Maryland. AB - The purpose of this study was to increase our understanding of the bioaccumulation of mercury in northern two-lined salamanders (Eurycea bislineata bislineata) in freshwater stream ecosystems. We collected 111 adults and 131 larval northern two-lined salamanders from six streams in Garrett County, Maryland. These salamanders were collected in April, July, and September 2010. We measured the size and tissue mercury content in all of these salamanders. We also measured the total and methyl mercury concentrations in stream water on monthly basis from April through December 2010. Averaged over all stream ecosystems, adult northern two-lined salamanders had significantly greater total mercury concentrations than larval salamanders (29.6 vs. 23.8 ng g-1). For individual stream ecosystems, the mean tissue mercury contents in adult northern two-lined salamanders were significantly greater than the mean tissue mercury contents in larval northern two-lined salamanders for Bear Pen and Mill Run. Adult and larval salamanders from the Little Savage River and Mud Lick had 1.5-2 times greater mean tissue mercury contents than salamanders in all other streams. These two streams also had significantly greater total and methyl mercury concentrations. Despite their different life-stage feeding behaviors (terrestrial vs. aquatic), the tissue mercury contents of adult (r = 0.76) and larval (r = 0.79) northern two-lined salamanders were strongly linked to the methyl mercury concentrations in stream water. This implies that northern two-lined salamanders may be a useful bioindicator of mercury pollution in relatively pristine stream ecosystems. PMID- 29332144 TI - Long-Acting beta2-Agonists in Asthma: Enantioselective Safety Studies are Needed. AB - Long-acting beta2-agonists (LABAs) such as formoterol and salmeterol are used for prolonged bronchodilatation in asthma, usually in combination with inhaled corticosteroids (ICSs). Unexplained paradoxical asthma exacerbations and deaths have been associated with LABAs, particularly when used without ICS. LABAs clearly demonstrate effective bronchodilatation and steroid-sparing activity, but long-term treatment can lead to tolerance of their bronchodilator effects. There are also concerns with regard to the effects of LABAs on bronchial hyperresponsiveness (BHR), where long-term use is associated with increased BHR and loss of bronchoprotection. A complicating factor is that formoterol and salmeterol are both chiral compounds, usually administered as 50:50 racemic (rac ) mixtures of two enantiomers. The chiral nature of these compounds has been largely forgotten in the debate regarding LABA safety and effects on BHR, particularly that (S)-enantiomers of beta2-agonists may be deleterious to asthma control. LABAs display enantioselective pharmacokinetics and pharmacodynamics. Biological plausibility of the deleterious effects of beta2-agonists (S) enantiomers is provided by in vitro and in vivo studies from the short-acting beta2-agonist (SABA) salbutamol. Supportive clinical findings include the fact that patients in emergency departments who demonstrate a blunted response to salbutamol are more likely to benefit from (R)-salbutamol than rac-salbutamol, and resistance to salbutamol appears to be a contributory mechanism in rapid asthma deaths. More effort should therefore be applied to investigating potential enantiospecific effects of LABAs on safety, specifically bronchoprotection. Safety studies directly assessing the effects of LABA (S)-enantiomers on BHR are long overdue. PMID- 29332145 TI - The experiences and beliefs of older people in Scottish very sheltered housing about using multi-compartment compliance aids. AB - Background Multi-compartment compliance aids (MCAs) are promoted as a potential solution to medicines non-adherence despite the absence of high quality evidence of effectiveness of MCA use impacting medicines adherence or any clinical outcomes. Furthermore, there is a lack of qualitative research which focuses on the perspectives of older people receiving MCAs. Objectives To describe experiences and beliefs surrounding very sheltered housing (VSH) residents' use of MCAs with emphasis on issues of personalisation, reablement, shared decision making, independence and support. Setting VSH in north east Scotland. Methods Qualitative, face-to-face interviews with 20 residents (>= 65 years, using MCA > 6 months) in three VSH complexes. Interviews focused on: when and why the MCA was first introduced; who was involved in making that decision; how the MCA was used; perceptions of benefit; and any difficulties encountered. Interviews were audiorecorded, transcribed and analysed using a framework approach. Main outcome measure Experiences and beliefs surrounding use of MCAs. Results Nine themes were identified: shared decision-making; independence; knowledge and awareness of why MCA had been commenced; support in medicines taking; knowledge and awareness of medicines; competent and capable to manage medicines; social aspects of carers supporting MCA use; benefits of MCAs; and drawbacks. Conclusion Experiences and beliefs are diverse and highly individual, with themes identified aligning to key strategies and policies of the Scottish Government, and other developed countries around the world, specifically personalisation shared decision making, independence, reablement and support. PMID- 29332147 TI - Phosphorus allocation and phosphatase activity in grasses with different growth rates. AB - Different growth rates of grasses from South American natural grasslands are adaptations to soils of low fertility. Grasses with fast growth rate are species with an accumulation of nutrients in soluble forms, with a high metabolic rate. This work aimed to study whether grasses with different growth rates have different phosphorus (P) uptake and efficiency of P use with high and low P availability in soil, as well as whether phosphatase activity is related to the species growth rate and variations in P biochemical forms in the tissues. Three native grasses (Axonopus affinis, Paspalum notatum, and Andropogon lateralis) were grown in pots with soil. Along plant growth, biomass production and its structural components were measured, as well as leaf acid phosphatase activity and leaf P chemical fractions. At 40 days of growth, leaf acid phosphatase activity declined by about 20-30% with an increase of P availability in soil for A. affinis and P. notatum, respectively. Under both soil P levels, P. notatum showed the highest plant total biomass, leaf dry weight and highest P use efficiency. A. affinis presented the higher P uptake efficiency and soluble organic P concentration in the leaf tissues. A. lateralis showed P-Lipid concentration 1.6 and 1.3 times higher than A. affinis and P. notatum, respectively. In conclusion, acid phosphatase activity in grass of higher growth rate is related to higher remobilization of P due to higher demand, as in A. affinis, and higher growth rates are associated with higher P uptake efficiency. PMID- 29332151 TI - 1H, 13C and 15N backbone and partial side-chain resonance assignments of the C terminal domain of HIV-1 Pr55Gag encompassed in NCp15. AB - During HIV-1 assembly, the Pr55Gag polyprotein precursor (Gag) interacts with the genomic RNA, with lipids of the plasma membrane, with host proteins (ALIX, TSG101) through the ESCRT complex, with the viral protein Vpr and are involved in intermolecular interactions with other Pr55Gag proteins. This network of interactions is responsible for the formation of the viral particle, the selection of genomic RNA and the packaging of Vpr. The C-terminal domain of Gag encompassed in NCp15 is involved in the majority of these interactions, either by its nucleocapsid or its p6 domains. We study the NCp15 protein as a model of the C-terminal domain of Gag to better understand the role of this domain in the assembly and budding of HIV-1. Here, we report the 1H, 13C and 15N chemical shift assignments of NCp15 obtained by heteronuclear multidimensional NMR spectroscopy as well as the analysis of its secondary structure in solution. These assignments of NCp15 pave the way for interaction studies with its numerous partners. PMID- 29332150 TI - Ectoparasite Activity During Incubation Increases Microbial Growth on Avian Eggs. AB - While direct detrimental effects of parasites on hosts are relatively well documented, other more subtle but potentially important effects of parasitism are yet unexplored. Biological activity of ectoparasites, apart from skin injuries and blood-feeding, often results in blood remains, or parasite faeces that accumulate and modify the host environment. In this way, ectoparasite activities and remains may increase nutrient availability that may favour colonization and growth of microorganisms including potential pathogens. Here, by the experimental addition of hematophagous flies (Carnus hemapterus, a common ectoparasite of birds) to nests of spotless starlings Sturnus unicolor during incubation, we explore this possible side effect of parasitism which has rarely, if ever, been investigated. Results show that faeces and blood remains from parasitic flies on spotless starling eggshells at the end of incubation were more abundant in experimental than in control nests. Moreover, eggshell bacterial loads of different groups of cultivable bacteria including potential pathogens, as well as species richness of bacteria in terms of Operational Taxonomic Units (OTUs), were also higher in experimental nests. Finally, we also found evidence of a link between eggshell bacterial loads and increased embryo mortality, which provides indirect support for a bacterial-mediated negative effect of ectoparasitism on host offspring. Trans-shell bacterial infection might be one of the main causes of embryo death and, consequently, this hitherto unnoticed indirect effect of ectoparasitism might be widespread in nature and could affect our understanding of ecology and evolution of host-parasite interactions. PMID- 29332152 TI - Mallory-Weiss syndrome diagnosed after tracheal extubation. PMID- 29332148 TI - Occurrence of pharmaceuticals and personal care products, and their associated environmental risks in a large shallow lake in north China. AB - Eighteen selected pharmaceuticals and personal care products (PPCPs), consisting of five non-antibiotic pharmaceuticals (N-APs), four sulfonamides (SAs), four tetracyclines (TCs), four macrolides (MCs), and one quinolone (QN) were detected in water, pore water, and sediment samples from Baiyangdian Lake, China. A total of 31 water samples and 29 sediment samples were collected in March 2017. Caffeine was detected with 100% frequency in surface water, pore water, and sediment samples. Carbamazepine was detected with 100% frequency in surface water and sediment samples. Five N-APs were prominent, with mean concentrations of 4.90 266.24 ng/l in surface water and 5.07-14.73 MUg/kg in sediment samples. Four MCs were prominent, with mean concentrations of 0.97-29.92 ng/l in pore water samples. The total concentrations of the different classes of PPCPs followed the order: N-APs (53.26%) > MCs (25.39) > SAs (10.06%) > TCs (7.64%) > QNs (3.64%) in surface water; N-APs (42.70%) > MCs (25.43%) > TCs (14.69%) > SAs (13.90%) > QNs (3.24%) in sediment samples, and MCs (42.12%) > N-APs (34.80%) > SAs (11.71%) > TCs (7.48%) > QNs (3.88%) in pore water samples. The geographical differences of PPCP concentrations were largely due to anthropogenic activities. Sewage discharged from Baoding City and human activities around Baiyangdian Lake were the main sources of PPCPs in the lake. An environmental risk assessment for the upper quartile concentration was undertaken using calculated risk quotients and indicated a low or medium-high risk from 18 PPCPs in Baiyangdian Lake and its five upstream rivers. PMID- 29332153 TI - Vasoactive-inotropic score as a predictor of morbidity and mortality in adults after cardiac surgery with cardiopulmonary bypass. AB - PURPOSE: The vasoactive-inotropic score (VIS) is a scale showing the amount of vasoactive and inotropic support. Recently, it was suggested that the VIS after cardiac surgery predicts morbidity and mortality in infants. The purpose of this study was to evaluate the VIS at the end of surgery as a predictor of morbidity and mortality in adult cardiac surgery. METHODS: A retrospective cohort study of 129 adult cardiac surgery patients was performed at a university hospital. The primary outcome was termed "poor outcome", which was a composite of morbidity and mortality. The secondary outcomes were the duration of intensive care unit (ICU) stay and time to first extubation. Multivariate logistic regression analysis was performed to evaluate the association between the VIS and poor outcomes. A proportional hazards model was used to evaluate the duration of the ICU stay and time to first extubation. RESULTS: After adjusting for the EuroSCORE, preoperative ejection fraction, and bypass time, a high VIS at the end of surgery was associated with a poor outcome with an adjusted odds ratio of 4.87 (95% confidence interval 1.51-18.94; p = 0.007). After controlling for the EuroSCORE and bypass time, patients with a high VIS experienced longer ICU stay (hazard ratio 1.62; 95% confidence interval 1.10-2.39; p = 0.015) and needed longer ventilation (hazard ration 1.87; 95% confidence interval 1.28-2.74, p = 0.001). CONCLUSIONS: The amount of cardiovascular support at the end of cardiac surgery may predict morbidity and mortality in adults. PMID- 29332154 TI - The influence of systemically or locally administered mesenchymal stem cells on tissue repair in a rat oral implantation model. AB - BACKGROUND: Multipotent mesenchymal stem cells (MSCs) are used clinically in regenerative medicine. Our previous report showed systemically injected MSCs improved peri-implant sealing and accelerated tissue healing. However, the risks of systemic MSC administration, including lung embolism, must be considered; therefore, their local application must be assessed for clinical safety and efficacy. We investigated differences in treatment effect between local and systemic MSC application using a rat oral implantation model. METHODS: Rat bone marrow-derived MSCs were isolated and culture-expanded. The rat's right maxillary first molars were extracted and replaced with experimental titanium implants. After 24 h, MSCs (1 * 106/ml) were systemically or locally injected into recipient rats via the tail vein (systemic group) or buccal subcutaneous tissue (local group), respectively. Rats treated in the absence of MSCs were included as a control (control group). The maxillary epithelium was assessed histologically after 4 weeks to evaluate laminin-332 (Ln-332) distribution and horseradish peroxidase invasion, as indicators of peri-implant epithelium (PIE) formation and PIE sealing to the implant surface, respectively. The effect of MSCs on rat oral epithelial cell (OEC) morphology was determined by coculture. RESULTS: Systemic group MSCs accumulated early at the peri-implant mucosa, while local group MSCs were observed in various organs prior to later accumulation around the implant surface. PIE formation and Ln-332-positive staining at the implant interface were enhanced in the systemic group compared with the local and control groups. Furthermore, OEC adherence on implants was reduced in high-density compared with low-density MSC cocultures. CONCLUSIONS: Local MSC injection was more ineffective than systemic MSC injection at enhancing PIE sealing around titanium implants. Thus, although local MSC administration has a wide range of applications, further investigations are needed to understand the exact cellular and molecular mechanisms of this approach prior to clinical use. PMID- 29332155 TI - Prevalence of the Pfdhfr and Pfdhps mutations among asymptomatic pregnant women in Southeast Nigeria. AB - Sulfadoxine-pyrimethamine (SP) is the recommended drug for intermittent preventive treatment of malaria in pregnancy in most of sub-Saharan Africa. Resistance to SP is related to mutations in the dhfr and dhps gene of Plasmodium falciparum. This study determined the prevalence of Pfdhfr and Pfdhps polymorphisms found in asymptomatic pregnant women attending antenatal care in Calabar, Nigeria. From October 2013 to November 2014, asymptomatic pregnant women attending antenatal care clinics were enrolled after obtaining informed consent. Malaria diagnosis testing was done using thick and thin smears. Dried blood spot filter papers were collected. Parasite DNA was extracted from the filter papers using a chelex extraction. Extraction was followed by nested PCR and restriction enzyme digestion. P. falciparum infection was detected by microscopy in 7% (32/459) participants. Twenty-eight P. falciparum isolates were successfully genotyped. In the Pfdhfr gene, the triple mutation was almost fixed; S108N mutation was (100%), N51I (93%) and C59R mutations (93%), whereas the I164L mutation was absent. The prevalence of Pfdhps S436A, A437G, A581G and A613S mutations was 82.1% (23/28), 96.4% (27/28), 71.4% (20/28) and 71.4% (20/28) respectively. The K540E mutation was absent. The prevalence of the Pfdhfr triple mutation IRNI was 92.9% (26/28). The efficacy of SP as IPTp in Southeast Nigeria may be severely threatened. The continuous monitoring of SP molecular markers of resistance is required to assess thresholds. The evaluation of alternative preventive treatment strategies and drug options for preventing malaria in pregnancy may be necessary. PMID- 29332156 TI - Enterocytozoon bieneusi genotypes in Tibetan sheep and yaks. AB - Few studies have been conducted on the distribution of Enterocytozoon bieneusi genotypes in Tibetan sheep and yaks, which live outdoors in extreme climate with high altitude. In this study, fecal specimens from 312 Tibetan sheep and 554 yaks in Qinghai, China, were collected and examined for E. bieneusi by PCR-sequence analysis of the ribosomal internal transcribed spacer. Among them, 73 (23.4%) specimens from Tibetan sheep and 40 (7.2%) from yaks were positive for E. bieneusi. There were eight E. bieneusi genotypes in Tibetan sheep, including three known ones (BEB6, COS-I, and NESH5) and five novel ones (named as CHS13 CHS17). Similarly, seven E. bieneusi genotypes were found in yaks, including five known ones (J, BEB4, BEB6, COS-I, and NESH5) and two novel ones (named as CHN13 and CHN14). Most of the E. bieneusi genotypes and all frequent ones identified in the study belonged to group 2. One new subgroup of genotypes was identified within group 1. The distribution of E. bieneusi genotypes was different between Tibetan sheep and yaks, with BEB6 as the dominant one (42.5%) in Tibetan sheep and J as the dominant one (47.5%) in yaks. These data support the occurrence of host adaptation among E. bieneusi genotypes within group 2. PMID- 29332157 TI - Acanthamoeba keratitis in Porto Alegre (southern Brazil): 28 cases and risk factors. AB - The increasing use of contact lenses worldwide has led to an increase in cases of Acanthamoeba keratitis, which are often associated with inappropriate cleaning of contact lenses and lens cases. This study aimed to retrospectively review 28 cases of Acanthamoeba keratitis in Porto Alegre (southern Brazil) and identify the risk factors and clinical outcomes of affected patients. Most patients had higher education (66.6%), all were users of contact lenses, mostly women (67.9%). Most patients were soft contact lens wearers (66.7%) and 85.7% used multipurpose cleaning solutions. Sixteen patients (64.0%) used to wear contact lenses while swimming and/or bathing. Pain was the most common symptom (92.6%). For treatment, patients used polyhexamethylene biguanide drops (92.6%), propamidine isethionate drops (81.5%), chlorhexidine drops (55.6%), topical corticosteroids (63.0%), and systemic corticosteroids (37.0%). Herpes simplex keratitis was the most common misdiagnosis (72.7%). The majority of patients (76.0%) underwent a corneal transplant to control the disease. PMID- 29332158 TI - Combined sublethal irradiation and agonist anti-CD40 enhance donor T cell accumulation and control of autochthonous murine pancreatic tumors. AB - Tumor-reactive T lymphocytes can promote the regression of established tumors. However, their efficacy is often limited by immunosuppressive mechanisms that block T cell accumulation or function. ACT provides the opportunity to ameliorate immune suppression prior to transfer of tumor-reactive T cells to improve the therapeutic benefit. We evaluated the combination of lymphodepleting whole body irradiation (WBI) and agonist anti-CD40 (alphaCD40) antibody on control of established autochthonous murine neuroendocrine pancreatic tumors following the transfer of naive tumor-specific CD8 T cells. Sublethal WBI had little impact on disease outcome but did promote T cell persistence in the lymphoid organs. Host conditioning with alphaCD40, an approach known to enhance APC function and T cell expansion, transiently increased donor T cell accumulation in the lymphoid organs and pancreas, but failed to control tumor progression. In contrast, combined WBI and alphaCD40 prolonged T cell proliferation and dramatically enhanced accumulation of donor T cells in both the lymphoid organs and pancreas. This dual conditioning approach also promoted high levels of inflammation in the pancreas and tumor, induced histological regression of established tumors, and extended the lifespan of treated mice. Prolonged survival was entirely dependent upon adoptive transfer, but only partially dependent upon IFNgamma production by donor T cells. Our results identify the novel combination of two clinically relevant host conditioning approaches that synergize to overcome immune suppression and drive strong tumor-specific T cell accumulation within well-established tumors. PMID- 29332160 TI - Determination of the Critical Micelle Concentration of Neutral and Ionic Surfactants with Fluorometry, Conductometry, and Surface Tension-A Method Comparison. AB - Micelles are of increasing importance as versatile carriers for hydrophobic substances and nanoprobes for a wide range of pharmaceutical, diagnostic, medical, and therapeutic applications. A key parameter indicating the formation and stability of micelles is the critical micelle concentration (CMC). In this respect, we determined the CMC of common anionic, cationic, and non-ionic surfactants fluorometrically using different fluorescent probes and fluorescence parameters for signal detection and compared the results with conductometric and surface tension measurements. Based upon these results, requirements, advantages, and pitfalls of each method are discussed. Our study underlines the versatility of fluorometric methods that do not impose specific requirements on surfactants and are especially suited for the quantification of very low CMC values. Conductivity and surface tension measurements yield smaller uncertainties particularly for high CMC values, yet are more time- and substance consuming and not suitable for every surfactant. PMID- 29332162 TI - Roles of Irisin in the Linkage from Muscle to Bone During Mechanical Unloading in Mice. AB - Mechanical unloading induces disuse muscle atrophy and bone loss, but the details in mechanism involved in those pathophysiological conditions are not fully understood. Interaction between muscle and bone has been recently noted. Here, we investigated the roles of humoral factors linking muscle to bone during mechanical unloading using mice with hindlimb unloading (HU) and sciatic neurectomy (SNX). HU and SNX reduced muscle volume surrounding the tibia, tissue weights of soleus and gastrocnemius muscle, and trabecular bone mineral density (BMD) in the tibia of mice. Among humoral factors linking muscle to bone, HU and SNX reduced fibronectin type III domain-containing 5 (FNDC5) mRNA levels in the soleus muscle of mice. Simple regression analysis revealed that FNDC5 mRNA levels in the soleus muscle were positively related to trabecular BMD in the tibia of control and HU mice as well as sham and SNX mice. Moreover, FNDC5 mRNA levels were negatively correlated with receptor activator of nuclear factor-kappaB ligand (RANKL) mRNA levels in the tibia of control and HU mice. Irisin, a product of FNDC5, suppressed osteoclast formation from mouse bone marrow cells and RANKL mRNA levels in primary osteoblasts. FNDC5 mRNA levels elevated by fluid shear stress were antagonized by bone morphogenetic protein (BMP) and phosphatidylinositol 3-kinase (PI3K) signaling inhibitors in myoblastic C2C12 cells. In conclusion, the present study first showed that mechanical unloading reduces irisin expression in the skeletal muscle of mice presumably through BMP and PI3K pathways. Irisin might be involved in muscle/bone relationships regulated by mechanical stress in mice. PMID- 29332161 TI - The computed tomography adrenal wash-out analysis properly classifies cortisol secreting adrenocortical adenomas. AB - PURPOSE: Adrenocortical lesions are characterized through imaging, hormonal and histopathological analysis. Our aim was to compare the radiological features of adrenocortical lesions with their cortisol-secreting status and histopathological Weiss score. METHODS: Seventy five patients operated between 2004 and 2016 in the University Hospital of Nancy for either adrenocortical carcinomas (ACC) or adrenocortical adenomas (ACA) were enrolled in this study. We collected cortisol parameters, Computed Tomography (CT) scans (unenhanced density, wash-out (WO) analysis) and 18F-Fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) datas. The histopathological Weiss score ultimately differentiates ACA (score <= 2) from ACC (score >= 3). One-way ANOVA, Fisher's exact and unpaired t tests were used for statistical analysis with significancy reached at p < 0.05. RESULTS: There were 23 ACC and 52 ACA with 40 patients (53%) who had an autonomous secretion of cortisol. On CT scan, ACC were larger compared to ACA (108 vs. 37 mm, p < 0.0001). A roughly similar proportion of cortisol secreting (22/25) and non-secreting (15/19) ACA were atypical (i.e., unenhanced density value >= 10 Hounsfield Units [HU]), however 85% of cortisol-secreting vs. 40% of non-secreting ACA were classified as benigns by the relative WO analysis (p = 0.08). Likewise, there was a trend for a higher 18F-FDG uptake in cortisol secreting ACA compared to non-secreting ACA (p = 0.053). CONCLUSIONS: The relative adrenal WO analysis consolidates the benign nature of an ACA, especially in case of cortisol oversecretion, a condition known to compromise the diagnostic accuracy of the 10 HU unenhanced CT attenuation threshold. PMID- 29332163 TI - The monkey is not always a God: Attitudinal differences toward crop-raiding macaques and why it matters for conflict mitigation. AB - Attitudinal differences toward wildlife have important implications for conflict management and when the species in question have strong cultural and religious associations, conflict mitigation becomes a challenging endeavor. We investigated farmers' attitudes toward two different crop-raiding macaque species, the rhesus macaque in northern India, and the bonnet macaque in southern India. Apart from regional differences in attitudes, we also assessed temporal changes in attitude toward the rhesus macaque. We carried out household surveys using a semistructured questionnaire to collect data. Our findings reveal that respondents in southern and northern India differ significantly in their views regarding species sanctity and preference for mitigation options. Although people's perceptions of the rhesus macaques had changed over time in northern India, farmers were still unwilling to cause harm to the macaques. We discuss the underlying causes of these observed differences in attitude and their impact on the management of human-macaque conflict. PMID- 29332159 TI - Transposable elements: genome innovation, chromosome diversity, and centromere conflict. AB - Although it was nearly 70 years ago when transposable elements (TEs) were first discovered "jumping" from one genomic location to another, TEs are now recognized as contributors to genomic innovations as well as genome instability across a wide variety of species. In this review, we illustrate the ways in which active TEs, specifically retroelements, can create novel chromosome rearrangements and impact gene expression, leading to disease in some cases and species-specific diversity in others. We explore the ways in which eukaryotic genomes have evolved defense mechanisms to temper TE activity and the ways in which TEs continue to influence genome structure despite being rendered transpositionally inactive. Finally, we focus on the role of TEs in the establishment, maintenance, and stabilization of critical, yet rapidly evolving, chromosome features: eukaryotic centromeres. Across centromeres, specific types of TEs participate in genomic conflict, a balancing act wherein they are actively inserting into centromeric domains yet are harnessed for the recruitment of centromeric histones and potentially new centromere formation. PMID- 29332164 TI - Skewing of the genetic architecture at the ZMYM3 human-specific 5' UTR short tandem repeat in schizophrenia. AB - Differential expansion of a number of human short tandem repeats (STRs) at the critical core promoter and 5' untranslated region (UTR) support the hypothesis that at least some of these STRs may provide a selective advantage in human evolution. Following a genome-wide screen of all human protein-coding gene 5' UTRs based on the Ensembl database ( http://www.ensembl.org ), we previously reported that the longest STR in this interval is a (GA)32, which belongs to the X-linked zinc finger MYM-type containing 3 (ZMYM3) gene. In the present study, we analyzed the evolutionary implication of this region across evolution and examined the allele and genotype distribution of the "exceptionally long" STR by direct sequencing of 486 Iranian unrelated male subjects consisting of 196 cases of schizophrenia (SCZ) and 290 controls. We found that the ZMYM3 transcript containing the STR is human-specific (ENST00000373998.5). A significant allele variance difference was observed between the cases and controls (Levene's test for equality of variances F = 4.00, p < 0.03). In addition, six alleles were observed in the SCZ patients that were not detected in the control group ("disease-only" alleles) (mid p exact < 0.0003). Those alleles were at the extreme short and long ends of the allele distribution curve and composed 4% of the genotypes in the SCZ group. In conclusion, we found skewing of the genetic architecture at the ZMYM3 STR in SCZ. Further, we found a bell-shaped distribution of alleles and selection against alleles at the extreme ends of this STR. The ZMYM3 STR sets a prototype, the evolutionary course of which determines the range of alleles in a particular species. Extreme "disease-only" alleles and genotypes may change our perspective of adaptive evolution and complex disorders. The ZMYM3 gene "exceptionally long" STR should be sequenced in SCZ and other human-specific phenotypes/characteristics. PMID- 29332165 TI - Factors Associated with Anxiety About Colonoscopy: The Preparation, the Procedure, and the Anticipated Findings. AB - BACKGROUND: Previous research has assessed anxiety around colonoscopy procedures, but has not considered anxiety related to different aspects related to the colonoscopy process. AIMS: Before colonoscopy, we assessed anxiety about: bowel preparation, the procedure, and the anticipated results. We evaluated associations between patient characteristics and anxiety in each area. METHODS: An anonymous survey was distributed to patients immediately prior to their outpatient colonoscopy in six hospitals and two ambulatory care centers in Winnipeg, Canada. Anxiety was assessed using a visual analog scale. For each aspect, logistic regression models were used to explore associations between patient characteristics and high anxiety. RESULTS: A total of 1316 respondents completed the questions about anxiety (52% female, median age 56 years). Anxiety scores > 70 (high anxiety) were reported by 18% about bowel preparation, 29% about the procedure, and 28% about the procedure results. High anxiety about bowel preparation was associated with female sex, perceived unclear instructions, unfinished laxative, and no previous colonoscopies. High anxiety about the procedure was associated with female sex, no previous colonoscopies, and confusing instructions. High anxiety about the results was associated with symptoms as an indication for colonoscopy and instructions perceived as confusing. CONCLUSIONS: Fewer people had high anxiety about preparation than about the procedure and findings of the procedure. There are unique predictors of anxiety about each colonoscopy aspect. Understanding the nuanced differences in aspects of anxiety may help to design strategies to reduce anxiety, leading to improved acceptance of the procedure, compliance with preparation instructions, and less discomfort with the procedure. PMID- 29332166 TI - Imaging in juvenile idiopathic arthritis - international initiatives and ongoing work. AB - Imaging is increasingly being integrated into clinical practice to improve diagnosis, disease control and outcome in children with juvenile idiopathic arthritis. Over the last decades several international groups have been launched to standardize and validate different imaging techniques. To enhance transparency and facilitate collaboration, we present an overview of ongoing initiatives. PMID- 29332168 TI - Efficient CRISPR/Cas9-based genome editing in carrot cells. AB - KEY MESSAGE: The first report presenting successful and efficient carrot genome editing using CRISPR/Cas9 system. Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/CRISPR-associated (Cas9) is a powerful genome editing tool that has been widely adopted in model organisms recently, but has not been used in carrot-a model species for in vitro culture studies and an important health-promoting crop grown worldwide. In this study, for the first time, we report application of the CRISPR/Cas9 system for efficient targeted mutagenesis of the carrot genome. Multiplexing CRISPR/Cas9 vectors expressing two single-guide RNA (gRNAs) targeting the carrot flavanone-3-hydroxylase (F3H) gene were tested for blockage of the anthocyanin biosynthesis in a model purple colored callus using Agrobacterium-mediated genetic transformation. This approach allowed fast and visual comparison of three codon-optimized Cas9 genes and revealed that the most efficient one in generating F3H mutants was the Arabidopsis codon-optimized AteCas9 gene with up to 90% efficiency. Knockout of F3H gene resulted in the discoloration of calli, validating the functional role of this gene in the anthocyanin biosynthesis in carrot as well as providing a visual marker for screening successfully edited events. Most resulting mutations were small Indels, but long chromosome fragment deletions of 116-119 nt were also generated with simultaneous cleavage mediated by two gRNAs. The results demonstrate successful site-directed mutagenesis in carrot with CRISPR/Cas9 and the usefulness of a model callus culture to validate genome editing systems. Given that the carrot genome has been sequenced recently, our timely study sheds light on the promising application of genome editing tools for boosting basic and translational research in this important vegetable crop. PMID- 29332169 TI - Measuring cochlear duct length in Asian population: worth giving a thought! AB - INTRODUCTION: The anatomy of the cochlea forms the basis for a successful cochlear implantation. Cochlear duct length (CDL) is defined as the length of the scala media as measured from the middle of the round window to helicotrema. Preoperative measurement of CDL is particularly important when precise intracochlear electrode array placement is desired. It can be done both histologically and radiologically. Preoperative high-resolution computed tomography (HRCT) scan which forms an integral part of cochlear implant workup is a useful tool to calculate CDL using 3D reconstructions. METHOD: This study was done in SMS Medical College and Hospital, Jaipur, India, which is a tertiary care hospital and referral centre for cochlear implants. HRCT temporal bones of all children less than 6 years of age, with congenital bilateral severe-to-profound SNHL who were being worked up for cochlear implant were studied and analysed. 124 patients (56 females and 68 males) with hearing loss were evaluated for cochlear implantation. HRCT temporal bone of these patients was analysed and a variable A was measured which is defined as the linear measurement from the round window to the farthest point on the opposite wall of the cochlea on a reformatted CT scan slice. RESULTS: Mean of distance A for right ear of these patients was 8.10 mm (range 7.7-9.2 mm). Mean for the same in left ear of these patients was 8.14 mm (range 7.7-9.0 mm), giving an overall average of 8.12 mm. Using the formula, CDL = 4.16A-3.98, we calculated the length of cochlear duct. Mean cochlear duct length was 29.8 mm with a range from 28 to 34.3 mm. CONCLUSION: To the best of our knowledge, this is the first large sample study of cochlear length in population of this part of the world. A smaller cochlear length in this part of the world as compared to the Caucasian cochlear duct is a significant finding in understanding of the cochlear anatomy and physiology. It would also have great implications on the insertion depth in cochlear implantation. PMID- 29332170 TI - MiRNA-mRNA crosstalk in laryngeal squamous cell carcinoma based on the TCGA database. AB - BACKGROUND: The functional characterization of non-coding microRNAs (miRNAs) has been shown to be associated with the pathophysiology of the disease, but it is still a challenging task to elucidate the pathogenesis of microRNAs and disease. In addition, the understanding of the role of miRNAs in the development of LSCC still needs further exploration. MATERIALS AND METHODS: In this study, to identify miRNAs that play a key role in LSCC, we analyzed miRNA and mRNA sequence data from 162 LSCC samples from the TCGA database, and screened specific miRNAs and mRNAs by differential gene expression analysis. And then, construct a differentially expressed miRNAs and mRNAs interaction network. RESULTS: In our investigation, 23 miRNAs (P < 0.01, log2FoldChange > 2) and 331 mRNAs (P < 0.01, log2FoldChange > 4) were identified differentially expressed in LSCC and reduced the number of loosely linked miRNAs and mRNAs according to appropriate thresholds. Finally, 13 miRNAs and 35 mRNAs were enriched in a network. CONCLUSIONS: Our study provides the most comprehensive information on the expression of miRNAs in LSCC and identifies the known oncogenic miRNAs (such as miR-163a), as well as aberrant expression of novel miRNAs involved in cell regulation and metabolic defects that occur during development of LSCC. PMID- 29332167 TI - Non-coding RNAs and plant male sterility: current knowledge and future prospects. AB - KEY MESSAGE: Latest outcomes assign functional role to non-coding (nc) RNA molecules in regulatory networks that confer male sterility to plants. Male sterility in plants offers great opportunity for improving crop performance through application of hybrid technology. In this respect, cytoplasmic male sterility (CMS) and sterility induced by photoperiod (PGMS)/temperature (TGMS) have greatly facilitated development of high-yielding hybrids in crops. Participation of non-coding (nc) RNA molecules in plant reproductive development is increasingly becoming evident. Recent breakthroughs in rice definitively associate ncRNAs with PGMS and TGMS. In case of CMS, the exact mechanism through which the mitochondrial ORFs exert influence on the development of male gametophyte remains obscure in several crops. High-throughput sequencing has enabled genome-wide discovery and validation of these regulatory molecules and their target genes, describing their potential roles performed in relation to CMS. Discovery of ncRNA localized in plant mtDNA with its possible implication in CMS induction is intriguing in this respect. Still, conclusive evidences linking ncRNA with CMS phenotypes are currently unavailable, demanding complementing genetic approaches like transgenics to substantiate the preliminary findings. Here, we review the recent literature on the contribution of ncRNAs in conferring male sterility to plants, with an emphasis on microRNAs. Also, we present a perspective on improved understanding about ncRNA-mediated regulatory pathways that control male sterility in plants. A refined understanding of plant male sterility would strengthen crop hybrid industry to deliver hybrids with improved performance. PMID- 29332171 TI - Long-term patient-related outcome measures of septoplasty: a systematic review. AB - PURPOSE: Septoplasty is a common rhinological procedure intended to relieve symptoms of chronic nasal obstruction. However, there remains a question as to whether patients obtain symptom improvement and are satisfied with surgical outcomes in the months and years after septoplasty. This review aims to evaluate the long-term efficacy of functional septoplasty for nasal septal deviation. METHODS: A systematic review of the literature was conducted from November 2014 to March 2016 using the Cochrane, EMBASE, and PubMed databases. Prospective trials concerning functional septoplasty, which assessed subjective outcomes and included long-term follow-up data (>= 9 month post-septoplasty) were included. RESULTS: 2189 articles were screened with seven meeting the criteria for inclusion. Patient satisfaction was assessed in six studies, with rates of satisfaction provided in three of these, ranging from 69 to 100%. Two studies assessed the degree of patient satisfaction, with one study indicating that 88% of patients were moderately satisfied or better at 1 year post-op, and the other reporting that 50% of patients were satisfied. In assessing symptom relief, several methods were used, including validated questionnaires, with varying degrees of improvement in nasal obstruction reported. CONCLUSIONS: Septoplasty appears to be a far from perfect treatment for nasal obstruction due to septal deviation. However, given the heterogeneity of data and lack of randomized controlled trials (RCTs), future RCTs and use of validated questionnaires would enable generation of superior levels of evidence. We suggest future prospective trials evaluating prognostic factors in septoplasty, to better inform patients and facilitate the development of guidelines for surgical intervention. PMID- 29332172 TI - Spirituality as a protective health asset for young people: an international comparative analysis from three countries. AB - OBJECTIVES: Spirituality has been proposed as a potential health asset a 'developmental engine' that works by fostering the search for connectedness, meaning and purpose. The aim is to examine to what extent spiritual health might be protective of young people's overall health and well-being. METHODS: In 2014, young people aged 11, 13, and 15 years in England, Scotland and Canada were surveyed as part of the HBSC study (n = 26,701). The perceived importance of spiritual health and domains (connections with self, others, nature, and the transcendent) was measured in these countries. Multi-level log-binomial models were used to explore relationships between spiritual health and three self reported positive health outcomes: general health status, subjective life satisfaction and health complaints. RESULTS: Higher levels of perceptions of the importance of spiritual health, both overall and within the four domains, were associated with higher likelihoods of reporting each of the positive health outcomes. CONCLUSIONS: Spiritual health appears to operate as a protective health asset during adolescence and is significantly shaped by external relationships and connections. PMID- 29332174 TI - A friend in knee: CCN3 may inhibit osteoarthritis progression. AB - Osteoarthritis (OA) is a major clinical problem among the ageing population, yet no disease-modifying treatments currently exist. This issue arises, in part, due to the complex processes occurring in the microenvironment of articular cartilage that lead to osteoarthritic changes. Gaining a better understanding of these processes is crucial in developing a viable therapy for OA. A recent report in Journal of Bone Mineral Metabolism by Janune et al. (J Bone Miner Metab 35:582 597, 2016) suggests a novel role for CCN3 in maintaining the differentiated phenotype of articular cartilage. This report suggests that CCN3, a member of the CCN family of matricellular proteins, is important for proteoglycan accumulation, as well as expression of type II collagen, tenascin C, and lubricin in vitro. Furthermore, exogenous CCN3 increased tidemark integrity and lubricin protein expression in a rat model of OA. These results implicate the regulation of CCN3 as a potential therapeutic target in patients with OA. PMID- 29332173 TI - Is the use of emergency departments socially patterned? AB - OBJECTIVES: To analyse the association between patients' socioeconomic position (SEP) and the use of emergency departments (EDs). METHODS: This population-based study included all visits to ED in 2012 by inhabitants of the French Midi Pyrenees region, recorded by the Regional Emergency Departments Observatory. We compared ED visit rates and the proportion of non-severe visits according to the patients' SEP as assessed by the European Deprivation Index. RESULTS: We analysed 496,388 visits. The annual ED visit rate increased with deprivation level: 165.9 [95% CI (164.8-166.9)] visits per 1000 inhabitants among the most advantaged group, compared to 321.9 [95% CI (320.3-323.5)] per 1000 among the most disadvantaged. However, the proportion of non-severe visits was about 14% of the visits, and this proportion did not differ according to SEP. CONCLUSIONS: Although the study shows a difference of ED visit rates, the probability of a visit being non-severe is not meaningfully different according to SEP. This supports the assumption that ED visit rate variations according to SEP are mainly explained by SEP-related differences in health states rather than SEP-related differences in health behaviours. PMID- 29332175 TI - Breast cancer survivor's perspectives on the role different providers play in follow-up care. AB - IMPORTANCE: Significant variation in the number and types of oncologists that provide breast cancer follow-up exists. However, there is limited understanding regarding breast cancer survivors' preferences for who provides their follow-up. Our objective was to explore breast cancer survivors' perspectives on the goals of breast cancer follow-up, the preferred role for primary care providers, and the perceived roles of different types of oncologists during follow-up. METHODS: A convenience sample of stage 0-III breast cancer survivors was identified and in depth one-on-one interviews conducted. Data were analyzed using inductive content analysis. RESULTS: Survivors cited a strong preference for oncology-based follow up within the first 5 years after diagnosis, driven by their need for reassurance that cancer had not recurred. Survivors also thought that their primary care provider needed to be involved. Survivors assumed that oncology follow-up was directed by a standard protocol that included streamlining the follow-up team. Survivors recognized that patients with more complex cancers or challenging treatment courses may require more intensive follow-up and deviate from the standard protocol. Most survivors were comfortable deferring decisions regarding who participated in follow-up to the oncology team. CONCLUSIONS: Most patients think a streamlined approach to oncology-based breast cancer follow-up already occurs, driven by a standard protocol. The use of a standard protocol to provide guidance for which types of oncology providers should participate in breast cancer follow-up will streamline care and represents a significant opportunity to reduce unnecessary variation. This approach is especially critical given patients' strong preferences for oncology-based follow-up. PMID- 29332177 TI - Novel SERAC1 mutations in a Chinese patient presenting with parkinsonism and dystonia. PMID- 29332176 TI - Characteristics of petroleum-contaminated groundwater during natural attenuation: a case study in northeast China. AB - The objective of this study was to investigate a petroleum-contaminated groundwater site in northeast China. We determined the physicochemical properties of groundwater that contained total petroleum hydrocarbons (TPH) with a view to developing a scientifically robust strategy for controlling and remediating pollution of groundwater already contaminated with petroleum. Samples were collected at regular intervals and were analyzed for dissolved oxygen (DO), iron (Fe3+), sulfate (SO42-), electrical conductivity (Eh), pH, hydrogen carbonate (HCO3-), and enzyme activities of catalase (CAT), peroxidase (HRP), catechol 1,2 dioxygenase (C12O), and catechol 2,3-dioxygenase (C23O). We used factor analysis in SPSS to determine the main environmental characteristics of the groundwater samples. The results confirmed that the study site was slightly contaminated and that TPH levels were decreasing slightly. Some of the physicochemical variables showed regular fluctuations; DO, Fe3+, and SO42- contents decreased gradually, while the concentrations of one of the microbial degradation products, HCO3-, increased. Microorganism enzyme activities decreased gradually. The microbiological community deteriorated noticeably during the natural attenuation process, so microbiological degradation of pollutants receded gradually. The HCO3 content increased and the pH and Eh decreased gradually. The groundwater environment tended to be reducing. PMID- 29332178 TI - Association of Autism with Maternal Infections, Perinatal and Other Risk Factors: A Case-Control Study. AB - This case-control study explores the association between pregnancy/birth complications and other factors with Autism Spectrum Disorder (ASD) in Lebanese subjects aged 2-18 years. Researchers interviewed 136 ASD cases from the American University of Beirut Medical Center Special Kids Clinic, and 178 controls selected by systematic digit dialing in the Greater-Beirut area. Male gender (Adjusted Odds Ratio [95% CI]: 3.9 [2.2-7.0]); postpartum feeding difficulties (2.5 [1.2-5.4]); maternal infections/complications during pregnancy (2.9 [1.5 5.5], 2.1 [1.1-3.9]); consanguinity (2.5 [1.0-6.0]); family history of psychiatric disorders (2.2 [1.1-4.4]) were risk factors for ASD. Being born first/second (0.52 [0.28-0.95]) and maternal psychological support during pregnancy (0.49 [0.27-0.89]) were negatively associated with ASD. Identifying ASD correlates is crucial for instigating timely screening and subsequent early intervention. PMID- 29332179 TI - Profiles and Correlates of Parent-Child Agreement on Social Anxiety Symptoms in Youth with Autism Spectrum Disorder. AB - This study characterized patterns and correlates of parent-youth agreement on social anxiety in youth with and without autism spectrum disorder (ASD). Participants (279 verbally-fluent youth aged 8-16 years, NASD = 144, NTD = 135) completed the SASC-R. Youth with ASD exhibited higher social anxiety across informants. While TD youth endorsed higher anxiety than did parents, self- and parent-reports did not differ in youth with ASD. For children with ASD, higher parent-youth agreement was associated with lower lifetime ASD symptoms and higher adaptive skills. For TD youth, agreement on high anxiety was associated with lowest adaptive skills. Demographic factors (age, verbal IQ, gender) did not relate to agreement for either group. In ASD, parent-child agreement on youth anxiety, either high or low, was associated with better outcomes. PMID- 29332182 TI - Correction to: Pretreatment quality of life in patients with rectal cancer is associated with intrusive thoughts and sense of coherence. AB - The original version of this article, unfortunately, contained errors. PMID- 29332181 TI - Management of Rotator Cuff Injuries in the Elite Athlete. AB - PURPOSE OF REVIEW: Rotator cuff injuries are a common cause of pain and dysfunction for the elite athlete and can result in time loss from participation. This review highlights the current management of these injuries. RECENT FINDINGS: Conservative management of rotator cuff injuries continues to be the "gold standard" in the elite athlete. This includes a comprehensive rehabilitation program, anti-inflammatories, and corticosteroid injections. Newer treatment techniques such as intramuscular dry needling and the use of biologics such as platelet-rich plasma and stem cells demonstrate early promising results; however, these modalities require further investigation to determine their effectiveness. Rotator cuff injuries can range from contusions and tendinopathy to full thickness tears. A comprehensive evaluation is needed to determine the extent of injury and appropriate plan of care. Management strategies can range from rehabilitation to operative intervention and are guided by the size of the tear, time of season, sport, performance limitations, and presence of concomitant pathology. PMID- 29332180 TI - CD39-adenosinergic axis in renal pathophysiology and therapeutics. AB - Extracellular ATP interacts with purinergic type 2 (P2) receptors and elicits many crucial biological functions. Extracellular ATP is sequentially hydrolyzed to ADP and AMP by the actions of defined nucleotidases, such as CD39, and AMP is converted to adenosine, largely by CD73, an ecto-5'-nucleotidase. Extracellular adenosine interacts with P1 receptors and often opposes the effects of P2 receptor activation. The balance between extracellular ATP and adenosine in the blood and extracellular fluid is regulated chiefly by the activities of CD39 and CD73, which constitute the CD39-adenosinergic axis. In recent years, several studies have shown this axis to play critical roles in transport of water/sodium, tubuloglomerular feedback, renin secretion, ischemia reperfusion injury, renal fibrosis, hypertension, diabetic nephropathy, transplantation, inflammation, and macrophage transformation. Important developments include global and targeted gene knockout and/or transgenic mouse models of CD39 or CD73, biological or small molecule inhibitors, and soluble engineered ectonucleotidases to directly impact the CD39-adenosinergic axis. This review presents a comprehensive picture of the multiple roles of CD39-adenosinergic axis in renal physiology, pathophysiology, and therapeutics. Scientific advances and greater understanding of the role of this axis in the kidney, in both health and illness, will direct development of innovative therapies for renal diseases. PMID- 29332183 TI - Identification of N-arylsulfonylpyrimidones as anticancer agents. AB - For confirming the role of five membered ring of imidazolidinone moiety of N arylsulfonylimidazolidinones (7) previously reported with highly potent anticancer agent, a series of N-arylsulfonylpyrimidones (10a-g) and N arylsulfonyltetrahydropyrimidones (11a-e) were prepared and their anti proliferating activity was measured against human cancer cell lines (renal ACHN, colon HCT-15, breast MDA-MB-231, lung NCI-H23, stomach NUGC-3, and prostate PC-3) using XTT assay. Among them, 1-(1-acetylindolin-5-ylsulfonyl)-4 phenyltetrahydropyrimidin-2(1H)-one (11d, mean GI50 = 3.50 uM) and ethyl 5-(2-oxo 4-phenyltetrahydropyrimidin-1(2H)-ylsulfonyl)-indoline-1-carboxylate (11e, mean GI50 = 0.26 uM) showed best growth inhibitory activity against human cancer cell lines. Considering the activity results, N-arylsulfonyltetrahydropyrimidones (11) exhibited more potent activity compared to N-arylsulfonylpyrimidones (10) and comparable activity to N-arylsulfonylimidazolidinones (7). Especially, tetrahydropyrimidin-2(1H)-one analogs containing acylindolin-5-ylsulfonyl moiety at position 1 demonstrated their strong growth inhibitory activity against human cancer cell lines. PMID- 29332184 TI - Neurologic complications of immune checkpoint inhibitors. AB - Immune checkpoint inhibitors (ICPIs) have recently emerged as a novel treatment for cancer. These agents, transforming the field of oncology, are not devoid of toxicity and cause immune-related side effects which can involve any organ including the nervous system. In this study, we present 9 patients (7 men and 2 women) with neurologic complications secondary to ICPI treatment. These included meningoencephalitis, limbic encephalitis, polyradiculitis, cranial polyneuropathy, myasthenic syndrome and myositis. Four patients received dual ICPI therapy comprised of programmed cell death-1 and cytotoxic lymphocyte associated protein-4 blocking antibodies. Median time to onset of neurologic adverse event during immune checkpoint inhibitor treatment was 8 weeks (range 5 days-19 weeks). In all patients ICPIs were stopped and corticosteroids were initiated, resulting in a marked improvement in seven out of nine patients. Two patients, one with myositis and one with myasthenic syndrome, died. In two patients ICPI therapy was resumed after resolution of the neurological adverse event with no additional neurologic complications. This series highlights the very broad spectrum of neurological complications of ICPIs, emphasizes the need for expedited diagnosis and suggests that withholding treatment early, accompanied with steroid therapy, carries the potential of complete resolution of the neurological immune-mediated condition. Thus, a high level of suspicion and rapid initiation of corticosteroids are mandatory to prevent uncontrolled clinical deterioration, which might be fatal. PMID- 29332185 TI - Handedness and the risk of glioma. AB - Gliomas are the most common type of malignant primary brain tumor and few risk factors have been linked to their development. Handedness has been associated with several pathologic neurological conditions such as schizophrenia, autism, and epilepsy, but few studies have evaluated a connection between handedness and risk of glioma. In this study, we examined the relationship between handedness and glioma risk in a large case-control study (1849 glioma cases and 1354 healthy controls) and a prospective cohort study (326,475 subjects with 375 incident gliomas). In the case-control study, we found a significant inverse association between left handedness and glioma risk, with left-handed persons exhibiting a 35% reduction in the risk of developing glioma [odds ratio (OR) = 0.65, 95% confidence interval (CI) 0.51-0.83] after adjustment for age, gender, race, education, and state of residence; similar inverse associations were observed for GBM (OR = 0.69, 95% CI 0.52-0.91), and non-GBM (OR = 0.59, 95% CI 0.42-0.82) subgroups. The association was consistent in both males and females, and across age strata, and was observed in both glioblastoma and in lower grade tumors. In the prospective cohort study, we found no association between handedness and glioma risk (hazards ratio = 0.92, 95% CI 0.67-1.28) adjusting for age, gender, and race. Further studies on this association may help to elucidate mechanisms of pathogenesis in glioma. PMID- 29332186 TI - Assessment of oral cancer pain, anxiety, and quality of life of oral squamous cell carcinoma patients with invasive treatment procedure. AB - PURPOSE: Depending on its stage on diagnosis, oral squamous cell carcinoma (OSCC) might cause excruciating pain and decreased quality of life. As for treatment, the treatment of OSCC might vary from chemotherapy to surgery. The objective of the current study was to assess the preoperative and postoperative oral cancer pain, anxiety, and quality of life of OSCC patients with invasive treatment procedure. METHODS: The current study was conducted by interviewing 21 (10 males; 11 females) patients who had been diagnosed with stage 3 and stage 4 OSCC and about to go through surgery at the inpatient ward of Surgical Oncology Department, Hasan Sadikin Hospital, Bandung, Indonesia. A preoperative and interview was conducted by using the Hospital Anxiety and Depression Scale (HADS), the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QOL)-C30, the shortened EORTC QOL Questionnaire for Oesophageal Cancer (OES)18, the visual analog scale (VAS), and the University of California San Francisco (UCSF) Oral Cancer Pain Questionnaire. All data were analyzed to evaluate the preoperative and postoperative effect. RESULTS: The current study showed a significant decrease of the postoperative oral pain (p < 0.01) and anxiety level (p < 0.01), while postoperative patient' quality of life was significantly (p < 0.01) increased. CONCLUSION: Despite of the invasive procedure that might cause postoperative effect, OSCC patients in the current study showed a better quality of life after cancer removal. PMID- 29332188 TI - Acknowledgements to Referees. PMID- 29332187 TI - Human bite injuries to the head and neck: current trends and management protocols in England and Wales. AB - INTRODUCTION: Human bite injuries can be challenging in their presentation to the examining physician. In a study by Merchant et al., 18% of patients presenting with a human bite injury had suffered wounds to the head and neck region. Current trends in their initial management at presentation to emergency departments throughout England and Wales will be discussed in this paper. MATERIALS AND METHOD: A postal survey was sent out to 100 A&E lead clinicians. This was followed up by telephone enquiries to improve the response rate. The collated results of the survey were entered onto a spreadsheet (Microsoft Excel(c)) for the purpose of statistical review. RESULTS: A 68% response rate from A&E departments throughout England and Wales demonstrated a lack of consensus in the initial management and subsequent treatment of human bite injuries. Written protocols are in place for human bite injuries in 54.4% of units. In 100% of units, initial management involves irrigation +/- debridement of the wound, though there is a lack of agreement on the surgical management of the wound. 77.9% of units follow 'needle stick protocols' when stratifying risk for blood borne viruses. CONCLUSION: Human bites pose a number of unique problems, ranging from cellulitis to the transmission of communicable diseases. The maxillofacial surgeon has the added dilemmas surrounding subsequent repair and reconstruction. Appreciation of the complexity of human bite injuries will ensure optimal care for the patient. We propose a set of guidelines developed 'in-house' to assist in the management of human bite injuries. PMID- 29332189 TI - The Arabidopsis histone chaperone FACT is required for stress-induced expression of anthocyanin biosynthetic genes. AB - KEY MESSAGE: The histone chaperone FACT is involved in the expression of genes encoding anthocyanin biosynthetic enzymes also upon induction by moderate high light and therefore contributes to the stress-induced plant pigmentation. The histone chaperone FACT consists of the SSRP1 and SPT16 proteins and associates with transcribing RNAPII (RNAPII) along the transcribed region of genes. FACT can promote transcriptional elongation by destabilising nucleosomes in the path of RNA polymerase II, thereby facilitating efficient transcription of chromatin templates. Transcript profiling of Arabidopsis plants depleted in SSRP1 or SPT16 demonstrates that only a small subset of genes is differentially expressed relative to wild type. The majority of these genes is either up- or down regulated in both the ssrp1 and spt16 plants. Among the down-regulated genes, those encoding enzymes of the biosynthetic pathway of the plant secondary metabolites termed anthocyanins (but not regulators of the pathway) are overrepresented. Upon exposure to moderate high-light stress several of these genes are up-regulated to a lesser extent in ssrp1/spt16 compared to wild type plants, and accordingly the mutant plants accumulate lower amounts of anthocyanin pigments. Moreover, the expression of SSRP1 and SPT16 is induced under these conditions. Therefore, our findings indicate that FACT is a novel factor required for the accumulation of anthocyanins in response to light-induction. PMID- 29332190 TI - Transcriptomic profiling of developing fiber in levant cotton (Gossypium herbaceum L.). AB - Cotton (Gossypium spp.) is an imperative economic crop of the globe due to its natural textile fiber. Molecular mechanisms of fiber development have been greatly revealed in allotetraploid cotton but remained unexplored in Gossypium herbaceum. G. herbaceum can withstand the rigors of nature like drought and pests but produce coarse lint. This undesirable characteristic strongly needs the knowledge of fiber development at molecular basis. The present study reported the transcriptome sequence of the developing fiber of G. herbaceum on pyrosequencing and its analysis. About 1.38 million raw and 1.12 million quality trimmed reads were obtained followed by de novo assembly-generated 20,125 unigenes containing 14,882 coding sequences (CDs). BLASTx-based test of homology indicated that A1 derived transcripts shared a high similarity with Gossypium arboreum (A2). Functional annotation of the CDs using the UniProt categorized them into biological processes, cellular components, and molecular function, COG classification showed that a large number of CDs have significant homology in COG database (6215 CDs), and mapping of CDs with Kyoto Encyclopedia of Genes and Genomes (KEGG) database generated 200 pathways ultimately showing predominant engagement in the fiber development process. Transcription factors were predicted by comparison with Plant Transcription Factor Database, and their differential expression between stages exposed their important regulatory role in fiber development. Differential expression analysis based on reads per kilobase of transcript per million mapped reads (RPKM) value revealed activities of specific gene related to carbohydrate and lipid synthesis, carbon metabolism, energy metabolism, signal transduction, etc., at four stages of fiber development, and was validated by qPCR. Overall, this study will help as a valuable foundation for diploid cotton fiber improvement. PMID- 29332192 TI - How Participatory Should Environmental Governance Be? Testing the Applicability of the Vroom-Yetton-Jago Model in Public Environmental Decision-Making. AB - Public participation is potentially useful to improve public environmental decision-making and management processes. In corporate management, the Vroom Yetton-Jago normative decision-making model has served as a tool to help managers choose appropriate degrees of subordinate participation for effective decision making given varying decision-making contexts. But does the model recommend participatory mechanisms that would actually benefit environmental management? This study empirically tests the improved Vroom-Jago version of the model in the public environmental decision-making context. To this end, the key variables of the Vroom-Jago model are operationalized and adapted to a public environmental governance context. The model is tested using data from a meta-analysis of 241 published cases of public environmental decision-making, yielding three main sets of findings: (1) The Vroom-Jago model proves limited in its applicability to public environmental governance due to limited variance in its recommendations. We show that adjustments to key model equations make it more likely to produce meaningful recommendations. (2) We find that in most of the studied cases, public environmental managers (implicitly) employ levels of participation close to those that would have been recommended by the model. (3) An ANOVA revealed that such cases, which conform to model recommendations, generally perform better on stakeholder acceptance and environmental standards of outputs than those that diverge from the model. Public environmental management thus benefits from carefully selected and context-sensitive modes of participation. PMID- 29332191 TI - Genome-wide characterization of differentially expressed genes provides insights into regulatory network of heat stress response in radish (Raphanus sativus L.). AB - Heat stress (HS) causes detrimental effects on plant morphology, physiology, and biochemistry that lead to drastic reduction in plant biomass production and economic yield worldwide. To date, little is known about HS-responsive genes involved in thermotolerance mechanism in radish. In this study, a total of 6600 differentially expressed genes (DEGs) from the control and Heat24 cDNA libraries of radish were isolated by high-throughput sequencing. With Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis, some genes including MAPK, DREB, ERF, AP2, GST, Hsf, and Hsp were predominantly assigned in signal transductions, metabolic pathways, and biosynthesis and abiotic stress responsive pathways. These pathways played significant roles in reducing stress induced damages and enhancing heat tolerance in radish. Expression patterns of 24 candidate genes were validated by reverse-transcription quantitative PCR (RT qPCR). Based mainly on the analysis of DEGs combining with the previous miRNAs analysis, the schematic model of HS-responsive regulatory network was proposed. To counter the effects of HS, a rapid response of the plasma membrane leads to the opening of specific calcium channels and cytoskeletal reorganization, after which HS-responsive genes are activated to repair damaged proteins and ultimately facilitate further enhancement of thermotolerance in radish. These results could provide fundamental insight into the regulatory network underlying heat tolerance in radish and facilitate further genetic manipulation of thermotolerance in root vegetable crops. PMID- 29332193 TI - Melanogenesis inhibitory activity of components from Salam leaf (Syzygium polyanthum) extract. AB - In order to identify a novel whitening agent, the methanol extract of S. polyanthum leaf was focused on by the screening test using nine Indonesian medicinal plants for the inhibition of melanogenesis and tyrosinase activity in B16 melanoma cells. Three novel compounds [(1) 1-(2,3,5-trihydroxy-4 methylphenyl)hexane-1-one, (2) 1-(2,3,5-trihydroxy methylphenyl)octane-1-one, and (3) (4E)-1-(2,3,5-trihydroxy-4-methylphenyl)decan-1-one and one known compound [(4) 1-(2,3,5-trihydroxy-4-methylphenyl)decan-1-one were isolated from the methanol extract. Our study demonstrated that S. polyanthum leaf methanol extract at 25-200 MUg/mL decreased extracellular melanin formation ca. 20-80%, with high cell viability. Compounds 1-4 were found to be active in melanogenesis and tyrosinase inhibition. Compound 3 was the most active against tyrosinase activity (83.98 MUM), particularly when L-tyrosine was the substrate. Compounds 1-4 significantly diminished extracellular melanin formation in B16 melanoma cells (> 80%), with high cell viability. Thus, our study suggested that compounds 1-4 isolated from the methanol extract of S. polyanthum leaf play important roles in decreasing extracellular melanogenesis and inhibiting tyrosinase. PMID- 29332194 TI - The active glycosides from Urtica fissa rhizome decoction. AB - Using bioassay guided fractionation, 16 glycosides, including two new compounds (1 and 2), were isolated from the anticomplement and anti-inflammatory portion of an Urtica fissa rhizome decoction used for arthritis. Several compounds were found to possess significant anticomplement and anti-inflammatory activities. This study revealed that glycosides played an important role in the therapeutic effects of Urtica fissa rhizome. PMID- 29332195 TI - Histomorphometry and cortical robusticity of the adult human femur. AB - Recent quantitative analyses of human bone microanatomy, as well as theoretical models that propose bone microstructure and gross anatomical associations, have started to reveal insights into biological links that may facilitate remodeling processes. However, relationships between bone size and the underlying cortical bone histology remain largely unexplored. The goal of this study is to determine the extent to which static indicators of bone remodeling and vascularity, measured using histomorphometric techniques, relate to femoral midshaft cortical width and robusticity. Using previously published and new quantitative data from 450 adult human male (n = 233) and female (n = 217) femora, we determine if these aspects of femoral size relate to bone microanatomy. Scaling relationships are explored and interpreted within the context of tissue form and function. Analyses revealed that the area and diameter of Haversian canals and secondary osteons, and densities of secondary osteons and osteocyte lacunae from the sub-periosteal region of the posterior midshaft femur cortex were significantly, but not consistently, associated with femoral size. Cortical width and bone robusticity were correlated with osteocyte lacunae density and scaled with positive allometry. Diameter and area of osteons and Haversian canals decreased as the width of cortex and bone robusticity increased, revealing a negative allometric relationship. These results indicate that microscopic products of cortical bone remodeling and vascularity are linked to femur size. Allometric relationships between more robust human femora with thicker cortical bone and histological products of bone remodeling correspond with principles of bone functional adaptation. Future studies may benefit from exploring scaling relationships between bone histomorphometric data and measurements of bone macrostructure. PMID- 29332197 TI - Identification as a Mutation Carrier and Effects on Life According to Experiences of Finnish Male BRCA1/2 Mutation Carriers. AB - Earlier studies have explored post-identification experiences of male BRCA1/2 mutation carriers, but more detailed knowledge of both their experiences and effects of identification as a carrier on their lives is required to improve genetic counseling. Thus, the aim of this study was to acquire deeper and broader insights into their experiences. Qualitative data were collected from theme-based interviews with 31 men carrying BRCA1/2 mutations in Finland, and analyzed using inductive content analysis. Three categories of the participants' responses to identification as BRCA1/2 mutation carriers were identified (personal, offspring related and related to other relatives), mainly concerning issues associated with cancer, hereditary transmission of their mutations, and life decisions. Although there were many neutral responses regarding the issues, there were also strong emotional reactions and cancer worries. Identification as a carrier also had several effects on participants' lifestyles, including adoption of healthier and disease-preventing behavior, and social well-being, such as family planning and attitudes to life. The results provide detailed information about several aspects of male BRCA1/2 mutation carriers' experiences, which could be used to develop a tentative model of tailored genetic counseling for them. PMID- 29332196 TI - Bioelectronic modulation of carotid sinus nerve activity in the rat: a potential therapeutic approach for type 2 diabetes. AB - AIMS/HYPOTHESIS: A new class of treatments termed bioelectronic medicines are now emerging that aim to target individual nerve fibres or specific brain circuits in pathological conditions to repair lost function and reinstate a healthy balance. Carotid sinus nerve (CSN) denervation has been shown to improve glucose homeostasis in insulin-resistant and glucose-intolerant rats; however, these positive effects from surgery appear to diminish over time and are heavily caveated by the severe adverse effects associated with permanent loss of chemosensory function. Herein we characterise the ability of a novel bioelectronic application, classified as kilohertz frequency alternating current (KHFAC) modulation, to suppress neural signals within the CSN of rodents. METHODS: Rats were fed either a chow or high-fat/high-sucrose (HFHSu) diet (60% lipid-rich diet plus 35% sucrose drinking water) over 14 weeks. Neural interfaces were bilaterally implanted in the CSNs and attached to an external pulse generator. The rats were then randomised to KHFAC or sham modulation groups. KHFAC modulation variables were defined acutely by respiratory and cardiac responses to hypoxia (10% O2 + 90% N2). Insulin sensitivity was evaluated periodically through an ITT and glucose tolerance by an OGTT. RESULTS: KHFAC modulation of the CSN, applied over 9 weeks, restored insulin sensitivity (constant of the insulin tolerance test [KITT] HFHSu sham, 2.56 +/- 0.41% glucose/min; KITT HFHSu KHFAC, 5.01 +/- 0.52% glucose/min) and glucose tolerance (AUC HFHSu sham, 1278 +/- 20.36 mmol/l * min; AUC HFHSu KHFAC, 1054.15 +/- 62.64 mmol/l * min) in rat models of type 2 diabetes. Upon cessation of KHFAC, insulin resistance and glucose intolerance returned to normal values within 5 weeks. CONCLUSIONS/INTERPRETATION: KHFAC modulation of the CSN improves metabolic control in rat models of type 2 diabetes. These positive outcomes have significant translational potential as a novel therapeutic modality for the purpose of treating metabolic diseases in humans. PMID- 29332198 TI - Drug Delivery and Transport into the Central Circulation: An Example of Zero Order In vivo Absorption of Rotigotine from a Transdermal Patch Formulation. AB - BACKGROUND AND OBJECTIVE: Pharmacokinetic studies using deconvolution methods and non-compartmental analysis to model clinical absorption of drugs are not well represented in the literature. The purpose of this research was (1) to define the system of equations for description of rotigotine (a dopamine receptor agonist delivered via a transdermal patch) absorption based on a pharmacokinetic model and (2) to describe the kinetics of rotigotine disposition after single and multiple dosing. METHODS: The kinetics of drug disposition was evaluated based on rotigotine plasma concentration data from three phase 1 trials. In two trials, rotigotine was administered via a single patch over 24 h in healthy subjects. In a third trial, rotigotine was administered once daily over 1 month in subjects with early-stage Parkinson's disease (PD). A pharmacokinetic model utilizing deconvolution methods was developed to describe the relationship between drug release from the patch and plasma concentrations. Plasma-concentration over time profiles were modeled based on a one-compartment model with a time lag, a zero order input (describing a constant absorption via skin into central circulation) and first-order elimination. Corresponding mathematical models for single- and multiple-dose administration were developed. RESULTS: After single-dose administration of rotigotine patches (using 2, 4 or 8 mg/day) in healthy subjects, a constant in vivo absorption was present after a minor time lag (2-3 h). On days 27 and 30 of the multiple-dose study in patients with PD, absorption was constant during patch-on periods and resembled zero-order kinetics. CONCLUSION: Deconvolution based on rotigotine pharmacokinetic profiles after single- or multiple-dose administration of the once-daily patch demonstrated that in vivo absorption of rotigotine showed constant input through the skin into the central circulation (resembling zero-order kinetics). Continuous absorption through the skin is a basis for stable drug exposure. PMID- 29332199 TI - Analysis of the data on pregnancy and lactation provided by patient information leaflets of anti-rheumatic drugs in Argentina. AB - To analyse the level of consistency and updating of the information on pregnancy and lactation provided by patient information leaflets (PILs) of the antirheumatic drugs approved in Argentina. Inconsistencies between the 2016 EULAR Task Force recommendations on the use of anti-rheumatic drugs during pregnancy and lactation and the information provided by PILs of the same drugs approved in Argentina were analysed along with inconsistencies within the PILs of different registered trademarks of these drugs. Eighty-eight PILs of 32 drugs were analysed. Out of the 88 PILs, 50% presented information inconsistencies as to pregnancy. Medications comprised in this group were: hydroxychloroquine, sulfasalazine, azathioprine, tacrolimus, cyclosporine, NSAIDs (during the first two trimesters), celecoxib, some glucocorticoids, colchicine, and some anti-TNF drugs (etanercept, adalimumab and infliximab) during part of the pregnancy. As for lactation, 56% had information inconsistencies. Medications encompassed in this group were: hydroxychloroquine, chloroquine, sulfasalazine, azathioprine, tacrolimus, cyclosporine, NSAIDs, celecoxib, meprednisone, prednisone, colchicine, and anti-TNF drugs. Out of 17 drugs that had more than one registered trademark, information inconsistencies on pregnancy were found in the PILs of sulfasalazine, diclofenac, ibuprofen and methylprednisolone. Concerning lactation, inconsistencies were present in the PILs of hydroxychloroquine, sulfasalazine, diclofenac, ibuprofen, meprednisone, and colchicine. At least half of the PILs of anti-rheumatic drugs analysed in this study had information inconsistencies on pregnancy and lactation. This is a serious state of affairs because the consensual decision-making process between patient and professional may be compromised, which, in turn, may give rise to medical-legal issues. PMID- 29332200 TI - Simultaneous multi-slice accelerated turbo spin echo of the knee in pediatric patients. AB - PURPOSE: To compare knee MRI performed with the integrated parallel acquisition technique (PAT) and simultaneous multislice (SMS) turbo spin echo (TSE) T2 weighted (T2w) sequences with conventional TSE sequences in pediatric patients. MATERIALS AND METHODS: This was a retrospective IRB-approved study. Seventy-four subjects (26 male, 48 female, mean age 15.3 years, range 8-20) underwent 3-T MRI of the knee with a T2w TSE pulse sequence prototype with four-fold PAT and SMS acceleration as well as the standard PAT-only accelerated sequences. Images were anonymized and two study folders were created: one examination with only T2w PAT2 images (conventional examination) and one examination with only T2w SMS2/PAT2 sequences (SMS examination). Two readers rated examinations for 15 specific imaging findings and 5 quality metrics. Interreader agreement was measured. Signal to noise (SNR) and contrast to noise (CNR) were measured for SMS and conventional T2w sequences. RESULTS: Consensus review demonstrated diagnostic quality performance of SMS examinations with respect to all 15 structures. Average area under the curve (AROC) was 0.95 and 0.97 for readers 1 and 2, respectively. The conventional sequence was favored over SMS for four out of five quality metrics (p < 0.001). SNR and CNR were higher for the conventional sequences compared to SMS. CONCLUSION: SMS accelerated T2w TSE sequences offer a faster alternative for knee imaging in pediatric patients without compromise in diagnostic performance despite diminished SNR. The four-fold acceleration of SMS is beneficial to pediatric patients who often have difficulty staying still for long MRI examinations. PMID- 29332201 TI - Gouty involvement of the patella and extensor mechanism of the knee mimicking aggressive neoplasm. A case series. AB - Gout is a common inflammatory crystal deposition disease that occurs in many joints throughout the body. Active gout is most often associated with painful synovitis causing searing joint pains, but gout can also produce large masses of space-occupying deposits called tophi. Tophi are most frequently seen in juxta articular locations with or without bony erosion and are often misdiagnosed as degenerative joint disease. Soft tissue deposits and tendon involvement are also known manifestations of gout, but can present with indeterminate and alarming findings on imaging. We present three cases of tophaceous gout mimicking aggressive neoplasms in the extensor mechanism of the knee. All cases presented as extensor tendon masses eroding into the patella, with imaging findings initially concerning for primary musculoskeletal malignancy. PMID- 29332202 TI - Non-amidated and amidated members of the C-type allatostatin (AST-C) family are differentially distributed in the stomatogastric nervous system of the American lobster, Homarus americanus. AB - The crustacean stomatogastric nervous system (STNS) is a well-known model for investigating neuropeptidergic control of rhythmic behavior. Among the peptides known to modulate the STNS are the C-type allatostatins (AST-Cs). In the lobster, Homarus americanus, three AST-Cs are known. Two of these, pQIRYHQCYFNPISCF (AST-C I) and GNGDGRLYWRCYFNAVSCF (AST-C III), have non-amidated C-termini, while the third, SYWKQCAFNAVSCFamide (AST-C II), is C-terminally amidated. Here, antibodies were generated against one of the non-amidated peptides (AST-C I) and against the amidated isoform (AST-C II). Specificity tests show that the AST-C I antibody cross-reacts with both AST-C I and AST-C III, but not AST-C II; the AST-C II antibody does not cross-react with either non-amidated peptide. Wholemount immunohistochemistry shows that both subclasses (non-amidated and amidated) of AST-C are distributed throughout the lobster STNS. Specifically, the antibody that cross-reacts with the two non-amidated peptides labels neuropil in the CoGs and the stomatogastric ganglion (STG), axons in the superior esophageal (son) and stomatogastric (stn) nerves, and ~ 14 somata in each commissural ganglion (CoG). The AST-C II-specific antibody labels neuropil in the CoGs, STG and at the junction of the sons and stn, axons in the sons and stn, ~ 42 somata in each CoG, and two somata in the STG. Double immunolabeling shows that, except for one soma in each CoG, the non-amidated and amidated peptides are present in distinct sets of neuronal profiles. The differential distributions of the two AST-C subclasses suggest that the two peptide groups are likely to serve different modulatory roles in the lobster STNS. PMID- 29332203 TI - Custom-made, antibiotic-loaded, acrylic cement spacers using a dental silicone template for treatment of infected hip prostheses. AB - PURPOSE: Antibiotic-loaded acrylic cement (ALAC) spacers are useful for treatment of infected prostheses in the course of a two-stage revision. Spacers are handmade or are made using a commercial template, with reportedly good treatment outcomes. This study aimed to confirm the usefulness of custom-made ALAC spacers shaped like bipolar hip prostheses using a dental silicone template for treatment of infected hip prostheses, and described their manufacture. METHODS: This study evaluated 10 patients who underwent two-stage revision for treatment of infected hip prostheses. Custom-made ALAC spacers were used in all patients. Templates were made with dental silicone. We investigated the following in treatment of the infected hip prostheses: bacterial pathogens; antibiotic-cement mixtures; waiting time to revision; dislocation, breakage, and migration of custom-made ALAC spacers; current hip status; progress during follow-up; presence or absence of recurrence; and walking ability. RESULTS: Dislocation, breakage, and migration were not observed in custom-made ALAC spacers. All patients recovered after two stage revision without additional surgery and showed no recurrence during the follow-up period. CONCLUSION: Custom-made ALAC spacers shaped like bipolar hip prostheses using a template made of dental silicone may be useful for treatment of infected hip prostheses. PMID- 29332204 TI - Supplementing living kidney transplantees' medical records with donor- and recipient-narratives. AB - Norway provides total social welfare coverage for organ transplantations, including free immunosuppressive medication and prepaid life-long follow up for both recipients and donors. Despite these benefits the proportion of living kidney donors (LKD) has in recent years declined from around 40% (2011) of all kidney transplantations to 24% (2016). This study suggests harnessing patient- and donor-narratives as a tool for addressing the current fall in donation rates. The hospital records of 18 recipient/donor dyads were compared with patient and donor accounts elicited in semi-structured interviews. Narratives afford a pertinent supplement to the primarily biomedical and technical information stored in medical records. Even in condensed form, the messages embedded in narratives contribute to a 'thicker' understanding of the complexity of living kidney donation (LKD)-decisions. Narratives represent a source of education for referring-nephrologists wishing to deepen their evaluation skills and avoid making decisions based on insufficient insight into patients' and potential donors' values and life-situation. Recipients' and donors' unedited accounts of their motivations, worries, doubts and expectations afford a revealing and edifying supplement to the primarily biomedical and technical information stored in medical records. In narratives, the predicaments and dilemmas surrounding LKD become visible and debatable and can serve as support for future donors, recipients and the nephrologists responsible for evaluation-conclusions. Generating narratives raises a number of practical, epistemic and normative challenges. PMID- 29332205 TI - Microbiome in psychiatry: where will we go? PMID- 29332206 TI - Oncological outcomes after cytoreductive nephrectomy for patients with metastatic renal cell carcinoma with inferior vena caval tumor thrombus. AB - BACKGROUND: To evaluate the oncological outcomes of patients with metastatic renal cell carcinoma (mRCC) involving the inferior vena cava (IVC) who received cytoreductive nephrectomy. METHODS: This study included 75 consecutive metastatis renal cell carcinoma (mRCC) patients with inferior vena cava (IVC) tumor thrombus undergoing cytoreductive nephrectomy and tumor thrombectomy followed by systemic therapy. RESULTS: Of the 75 patients, 11, 33, 24 and 7 had level I, II, III and IV IVC thrombus, respectively. Following surgical treatment, 25 (group A), 27 (group B) and 23 (group C) received cytokine therapy alone, molecular-targeted therapy alone and both therapies, respectively, as management for metastatic diseases. The median overall survival (OS) of the 75 patients was 16.2 months. No significant differences in OS were noted according to the level of the IVC tumor thrombus. There were no significant differences in OS among groups A, B and C; however, OS in groups B and C was significantly superior to that in group A. Furthermore, multivariate analysis of several parameters identified the following independent predictors of poor OS-elevated C-reactive protein, liver metastasis and postoperative treatment with cytokine therapy alone. CONCLUSIONS: The prognosis of mRCC patients with IVC thrombus undergoing cytoreductive nephrectomy may be significantly affected by the type of postoperative systemic therapy rather than the level of the IVC tumor thrombus. Accordingly, cytoreductive nephrectomy should be considered as a major therapeutic option for patients with mRCC involving the IVC, particularly in the era of targeted therapy. PMID- 29332207 TI - Skeletal muscle expression of p43, a truncated thyroid hormone receptor alpha, affects lipid composition and metabolism. AB - Thyroid hormone is a major regulator of metabolism and mitochondrial function. Thyroid hormone also affects reactions in almost all pathways of lipids metabolism and as such is considered as the main hormonal regulator of lipid biogenesis. The aim of this study was to explore the possible involvement of p43, a 43 Kda truncated form of the nuclear thyroid hormone receptor TRalpha1 which stimulates mitochondrial activity. Therefore, using mouse models overexpressing p43 in skeletal muscle (p43-Tg) or lacking p43 (p43-/-), we have investigated the lipid composition in quadriceps muscle and in mitochondria. Here, we reported in the quadriceps muscle of p43-/- mice, a fall in triglycerides, an inhibition of monounsaturated fatty acids (MUFA) synthesis, an increase in elongase index and an decrease in desaturase index. However, in mitochondria from p43-/- mice, fatty acid profile was barely modified. In the quadriceps muscle of p43-Tg mice, MUFA content was decreased whereas the unsaturation index was increased. In addition, in quadriceps mitochondria of p43-Tg mice, we found an increase of linoleic acid level and unsaturation index. Last, we showed that cardiolipin content, a key phospholipid for mitochondrial function, remained unchanged both in quadriceps muscle and in its mitochondria whatever the mice genotype. In conclusion, this study shows that muscle lipid content and fatty acid profile are strongly affected in skeletal muscle by p43 levels. We also demonstrate that regulation of cardiolipin biosynthesis by the thyroid hormone does not imply p43. PMID- 29332208 TI - Localised aggressive periodontitis in a 3-year-old-boy. AB - BACKGROUND: Localised aggressive periodontitis (LAgP), characterised by rapid attachment and bone loss, which may occur in children and adolescents, without clinical evidence of systemic disease. CASE REPORT: Three-year-old boy was referred with excessive mobility of 83 and exfoliation of 73. Clinical examination revealed acceptable oral hygiene. Blood tests were performed to evaluate PMNs activity and the parents were advised to apply 0.2% chlorhexidine twice a day. One month later 83 was still excessively mobile. Blood tests were normal. TREATMENT: A full mouth scaling and curettage were performed under general anaesthesia. Since 83 had been spontaneously exfoliated one day earlier, a biopsy was taken from its socket. The biopsy examination revealed granulation tissue with actinomyces colonies. A course of amoxicillin 250 mg three times a day for 7 days was prescribed. Cultures from periodontal pockets of the child's family members were found negative to Aggregatibacter actinomycetem comitans (Aa). FOLLOW-UP: Examination 3 months later, no tooth mobility was observed and the cultures from the periodontal pockets were negative to Aa. Thereafter, the child was periodically reviewed every 3 months for 26 months with no signs of periodontal disease. CONCLUSION: Amoxicillin combined with curettage around the involved teeth may be effective in LAgP treatment. PMID- 29332209 TI - The rapid diagnosis of viral respiratory tract infections and its impact on antimicrobial stewardship programs. AB - We aimed to describe the potential benefit of new rapid molecular respiratory tests (MRT) in decreasing inappropriate antibiotic use among the inpatients presenting with influenza-like illness (ILI). We included patients from inpatient and outpatient departments who had ILI and performed MRT between 1 January 2015 and 31 December 2016 in a 265-bed private hospital in Istanbul. At the end of 2015, we implemented antimicrobial stewardship including systematic use of MRT. Then, we compared our observations between the year 2015 and the year 2016. We designed the study according to the STrengthening the Reporting of OBservational studies in Epidemiology (STROBE) tool. A U.S. Food and Drug Administration (FDA) cleared multiplexed polymerase chain reaction (PCR) system (BioFire FilmArray, Idaho Technology, Salt Lake City, UT) which detects 17 viruses and three bacteria was used for diagnosis. In total, 1317 patients were included; 630 (48%) were inpatients and 569 (43%) were older than 16 years of age. At least one virus was detected in 747 (57%) patients. Rhinovirus/enterovirus, influenza virus, and adenovirus were the most commonly detected. Among hospitalized patients, in children, a significant decrease in antibiotic use (44.5% in 2015 and 28.8% in 2016, p = 0.009) was observed, but in adults, the decrease was not statistically significant (72% in 2015 and 63% in 2016, p = 0.36). The duration of antibiotic use after the detection of virus was significantly decreased in both children and adults (p < 0.001 and p = 0.007, respectively). By using MRT, inappropriate antibiotic use and, also, duration of inappropriate antibiotic use after the detection of virus was significantly decreased. It is time to increase the awareness about the viral etiology in respiratory tract infections (RTIs) and implement MRT in clinical practice. PMID- 29332210 TI - Pathogen-specific leptospiral proteins in urine of patients with febrile illness aids in differential diagnosis of leptospirosis from dengue. AB - Leptospirosis and dengue are two commonly seen infectious diseases of the tropics. Differential diagnosis of leptospirosis from dengue fever is often difficult due to overlapping clinical symptoms and lack of economically viable and easy-to-perform laboratory tests. The gold standard for diagnosis is the microscopic agglutination test (MAT). In this study, the diagnostic potential of screening for pathogen-specific leptospiral antigens in urine samples is presented as a non-invasive method of disease diagnosis. In a study group of 40 patients, the serum was tested for anti-leptospiral antibodies by MAT and enzyme linked immunosorbent assay (ELISA). Urine of these patients was screened for leptospiral antigens by ELISA using specific antibodies against LipL32, LipL41, Fla1, HbpA and sphingomyelinase. Group I patients (n = 23) were classified as leptospirosis-positive based on MAT and high titres of circulating IgM-specific anti-leptospiral antibodies. All of these patients excreted all five leptospiral antigens in the urine. The 17 MAT-negative cases included six patients with pyrexia of unknown origin (PUO; Group II) and 11 confirmed dengue patients (Group III). The latter tested negative for both serum anti-leptospiral antibodies and urinary leptospiral antigens. A salient outcome of this study was highlighting the usefulness of screening for urinary leptospiral antigens in disease diagnosis, as their presence confirmed leptospiral aetiology in two PUO patients. Immunoblots of urinary antigens identified well-defined bands corresponding to LipL32, HbpA and sphingomyelinase; the significance of the 42- and 58-kDa sphingomyelinase bands is discussed. PMID- 29332211 TI - Testosterone-mediated upregulation of delayed rectifier potassium channel in cardiomyocytes causes abbreviation of QT intervals in rats. AB - Men have shorter rate-corrected QT intervals (QTc) than women, especially at the period of adolescence or later. The aim of this study was to elucidate the long term effects of testosterone on cardiac excitability parameters including electrocardiogram (ECG) and potassium channel current. Testosterone shortened QT intervals in ECG in castrated male rats, not immediately after, but on day 2 or later. Expression of Kv7.1 (KCNQ1) mRNA was significantly upregulated by testosterone in cardiomyocytes of male and female rats. Short-term application of testosterone was without effect on delayed rectifier potassium channel current (IKs), whereas IKs was significantly increased in cardiomyocytes treated with dihydrotestosterone for 24 h, which was mimicked by isoproterenol (24 h). Gene selective inhibitors of a transcription factor SP1, mithramycin, abolished the effects of testosterone on Kv7.1. Testosterone increases Kv7.1-IKs possibly through a pathway related to a transcription factor SP1, suggesting a genomic effect of testosterone as an active factor for cardiac excitability. PMID- 29332213 TI - Survivorship care plan outcomes for primary care physicians, cancer survivors, and systems: a scoping review. AB - PURPOSE: With the focus on survivorship care-coordination between oncology and primary care providers (PCPs), there is a need to assess the research regarding the use of survivorship care plans (SCPs) and determine emerging research areas. We sought to find out how primary care physicians have been involved in the use of SCPs and determine SCP's effectiveness in improving care for cancer survivors. In this scoping review, we aimed to identify gaps in the current research and reveal opportunities for further research. METHODS: We followed the methodology for scoping studies which consists of identifying the research question, locating relevant studies, selecting studies, charting the data, and collating, summarizing, and reporting the results. RESULTS: Out of 5375 original articles identified in the literature search, 25 met the inclusion/exclusion criteria. Eight articles examined PCP-only related outcomes, eight examined survivor-only related outcomes, eight examined mixed outcomes between both groups, and one examined system-based outcomes. Findings highlighted several areas where SCPs may provide benefits, including increased confidence among PCPs in managing the care of survivors and increased quality of life and well-being for survivors. This research also highlighted the need for careful consideration of SCP mode of delivery and content in order to maximize their utility to patients and providers. CONCLUSIONS: Based on the findings of this review, SCPs may benefit providers and health care systems, but the benefits to patients remain unclear. Further research on the potential benefits of SCPs to particular patient populations is warranted. IMPLICATIONS FOR CANCER SURVIVORS: SCPs appear to be beneficial to PCPs in improving overall quality of care. However, more work needs to be done to understand the direct impact on cancer survivors. PMID- 29332212 TI - Measurement of [Cl-]i unaffected by the cell volume change using MQAE-based two photon microscopy in airway ciliary cells of mice. AB - MQAE is a 'non-ratiometric' chloride ion (Cl-)-quenched fluorescent indicator that is used to determine intracellular Cl- concentration ([Cl-]i). MQAE-based two-photon microscopy is reported to be a useful method to measure [Cl-]i, but it is still controversial because a change in cell volume may alter the MQAE concentration, leading to a change in the fluorescence intensity without any change in [Cl-]i. In an attempt to elucidate the effect or lack of effect of cell volume on MQAE concentration, we studied the effects of changes in cell volume, achieved by applying different levels of osmotic stress, on the intensity of MQAE fluorescence in airway ciliary cells. To study solely the effect of changes in cell volume on MQAE fluorescence intensity, i.e., excluding the effect of any change in [Cl-]i, we first conducted the experiments in a Cl--free nitrate (NO3-) solution to substitute NO3- (non-quenching anion for MQAE fluorescence) for Cl- in the intracellular fluid. Hypo- (- 30 mM NaNO3) or hyper-osmotic stress (+ 30 mM NaNO3) effected changes in cell volume, but the stress did not result in any significant change in MQAE fluorescence intensity. The experiments were also carried out in Cl--containing solution. Hypo-osmotic stress (- 30 mM NaCl) increased both MQAE fluorescence intensity and cell volume, while hyper-osmotic stress (+ 30 mM NaCl) decreased both of these properties. These results suggest that the osmotic stress-induced change in MQAE fluorescence intensity was caused by the change in [Cl-]i and not by the MQAE concentration. Moreover, the intracellular distribution of MQAEs was heterogeneous and not affected by the changes in osmotic stress-induced cell volume, suggesting that MQAEs are bound to un-identified subcellular structures. These bound MQAEs appear to have enabled the measurement of [Cl-]i in airway ciliary cells, even under conditions of cell volume change. PMID- 29332214 TI - Targeted Next-Generation Sequencing in Patients with Non-syndromic Congenital Heart Disease. AB - Congenital heart disease (CHD) is a genetically heterogeneous disease. Targeted next-generation sequencing (NGS) offers a unique opportunity to sequence multiple genes at lower cost and effort compared to Sanger sequencing. We tested a targeted NGS of a specific gene panel in a relatively large population of non syndromic CHD patients. The patient cohort comprised 68 CHD patients (45 males; 8.3 +/- 1.7 years). Amplicon libraries for 16 CHD-strictly related genes were generated using a TruSeq(r) Custom Amplicon kit (Illumina, CA) and sequenced using the Illumina MiSeq platform. Sequence data were processed through the MiSeq Reporter and wANNOVAR softwares. After applying stringent filtering criteria, 20 missense variants in 9 genes were predicted to be damaging and were validated by Sanger sequencing with 100% concordance. Fourteen variants were present in public databases with very rare allele frequency, of which four variants (p.Arg25Cys in NKX2-5, p.Val763Ile in ZFPM2, p.Arg1398Gln and Gly1826Asp in MYH6) have been previously linked to CHD or cardiomyopathy. The remaining six variants in four genes (GATA4, NKX2-5, NOTCH1, TBX1) were novel mutations, currently not found in public databases, and absent in 200 control alleles of healthy subjects. Four patients (5.8%) carried two missense variants (1 compound heterozygote in the same gene and 3 double heterozygotes in different genes), with possibly synergistic deleterious effects. Targeted NGS is a powerful and efficient tool to detect DNA sequence variants in multiple genes, providing the opportunity for discovery of the co-occurrence of two or more missense rare variants. PMID- 29332215 TI - Heparin-Coated Grafts Reduce Mortality in Pediatric Patients Receiving Systemic to-Pulmonary Shunts. AB - We aimed to evaluate the outcomes of systemic-to-pulmonary (SP) shunt procedures utilizing heparin-coated (HC) polytetrafluoroethylene (PTFE) vascular grafts compared to uncoated (non-HC) grafts, in order to observe any benefits in pediatric patients. Our institution switched from using non-HC grafts to HC grafts in March 2011. We conducted a retrospective review of consecutive pediatric patients receiving SP shunts from May 2008 to December 2015. Perioperative variables including baseline characteristics, morbidity, mortality, and blood product utilization were evaluated between the HC and non-HC groups. A total of 142 pediatric patients received SP shunts during the study period: 69 patients received HC shunts and 73 patients received non-HC shunts. The HC group had significantly fewer desaturation or arrest events (P < 0.01), fewer shunt occlusions/thromboses (P < 0.01). There was no statistically significant difference in unplanned reoperations between groups (P = 0.18). The HC group demonstrated significantly lower overall 30-day mortality (P < 0.01), as well as shunt-related mortality (P < 0.01). The HC group had significantly lower postoperative packed red blood cell utilization as compared to the non-HC group (P < 0.01). In this study, pediatric patients receiving HC PTFE grafts in SP shunts demonstrated significantly lower shunt-related mortality. The majority of HC grafts remained patent. These findings suggest that HC grafts used in SP shunt procedures may benefit pediatric patients in terms of efficacy and outcomes. PMID- 29332216 TI - Characteristics of ARG-carrying plasmidome in the cultivable microbial community from wastewater treatment system under high oxytetracycline concentration. AB - Studies on antibiotic production wastewater have shown that even a single antibiotic can select for multidrug resistant bacteria in aquatic environments. It is speculated that plasmids are an important mechanism of multidrug resistance (MDR) under high concentrations of antibiotics. Herein, two metagenomic libraries were constructed with plasmid DNA extracted from cultivable microbial communities in a biological wastewater treatment reactor supplemented with 0 (CONTROL) or 25 mg/L of oxytetracycline (OTC-25). The OTC-25 plasmidome reads were assigned to 72 antibiotic resistance genes (ARGs) conferring resistance to 13 types of antibiotics. Dominant ARGs, encoding resistance to tetracycline, aminoglycoside, sulfonamide, and multidrug resistance genes, were enriched in the plasmidome under 25 mg/L of oxytetracycline. Furthermore, 17 contiguous multiple-ARG carrying contigs (carrying >= 2 ARGs) were discovered in the OTC-25 plasmidome, whereas only nine were found in the CONTROL. Mapping of the OTC-25 plasmidome reads to completely sequenced plasmids revealed that the conjugative IncU resistance plasmid pFBAOT6 of Aeromonas caviae, carrying multidrug resistance transporter (pecM), tetracycline resistance genes (tetA, tetR), and transposase genes, might be a potential prevalent resistant plasmid in the OTC-25 plasmidome. Additionally, two novel resistant plasmids (containing contig C301682 carrying multidrug resistant operon mexCD-oprJ and contig C301632 carrying the tet36 and transposases genes) might also be potential prevalent resistant plasmids in the OTC-25 plasmidome. This study will be helpful to better understand the role of plasmids in the development of MDR in water environments under high antibiotic concentrations. PMID- 29332217 TI - A novel glucuronoyl esterase from Aspergillus fumigatus-the role of conserved Lys residue in the preference for 4-O-methyl glucuronoyl esters. AB - Cellulose in plant cell walls is mainly covered by hemicellulose and lignin, and thus efficient removal of these components is thought to be a key step in the optimal utilization of lignocellulose. The recently discovered carbohydrate esterase (CE) 15 family of glucuronoyl esterases (GEs) which cleave the linkages between the free carboxyl group of D-glucuronic acid in hemicellulose and the benzyl groups in lignin residues could contribute to this process. Herein, we report the identification, functional expression, and enzymatic characterization of a GE, AfGE, from the filamentous fungus Aspergillus fumigatus. AfGE was heterologously expressed in Aspergillus oryzae, and the purified enzyme displayed the ability to degrade the synthetic substrates mimicking the ester linkage between hemicellulose and lignin. AfGE is a potentially industrially applicable enzyme due to its characteristic as a thermophilic enzyme with the favorable temperature of 40-50 degrees C at pH 5. Molecular modeling and site-directed mutagenesis studies of AfGE demonstrated that Lys209 plays an important role in the preference for the substrates containing 4-O-methyl group in the glucopyranose ring. PMID- 29332218 TI - Effects of sleep hygiene training given to pregnant women with restless leg syndrome on their sleep quality. AB - PURPOSE: This research was conducted to determine the effects of sleep hygiene training given to pregnant women with restless leg syndrome on their sleep quality. METHODS: This study was conducted using a quasi-experimental design with pre-test and post-test, and a control group. When the power analysis was made, a sample size with 5% two-sided significance, 95% confidence interval, and 95% ability to represent the population was calculated to have a total of 128 pregnant women. The sleeping hygiene training was given to two sessions of the experiment group. A personal identification form and the Pittsburgh Sleep Quality Index were used for the collection of data. Percentage distribution, arithmetic mean, standard deviation, and chi-square were used for statistical evaluation in addition to dependent and independent groups t tests. RESULTS: PSQI pre-test mean values revealed that sleep quality in both groups was similarly poor (p = 0.353). It was determined that the mean post-test score after sleep hygiene training was 7.23 +/- 2.17 in the experiment group and 10.54 +/- 2.20 in the control group, while the difference between the groups was statistically significant (p = 0.000). Accordingly, it was determined that the sleepers in the experimental group had better sleep quality than those in the control group. CONCLUSIONS: Sleep hygiene training given to pregnant women with restless leg syndrome increased sleep quality. PMID- 29332220 TI - Perinatal outcomes of unplanned out-of-hospital deliveries: a case-control study. AB - PURPOSE: To compare the pregnancy and perinatal outcomes of unplanned home or car births vs. in-hospital deliveries. METHODS: A retrospective, case-control study of women who underwent unplanned out-of-hospital deliveries vs. in-hospital deliveries from 2004 through 2014. Matching was based on gestational age and parity in a ratio of 2:1. RESULTS: There were no significant differences between the groups regarding demographic criteria, prenatal care and delivery complications. Women who delivered out of hospital (n = 90) had significantly fewer cesarean deliveries (1.1 vs. 10.6%; p = 0.05) and operative deliveries (2.2 vs. 13.3%; p = 0.004) in their obstetrical history than did the control group (n = 180). Significantly more newborns delivered out of the hospital had polycythemia (25.6 vs. 1.7%; p < 0.0001) and hypothermia (3.3 vs. 0%; p = 0.036) compared to the control group. CONCLUSION: Women with unplanned out-of-hospital deliveries tend to have fewer complications in their previous deliveries. Higher rates of polycythemia and hypothermia require attention for neonates born out of the hospital. PMID- 29332221 TI - German words: still used by Japanese obstetrics and gynecology doctors. AB - BACKGROUND: German used to be frequently employed in Japanese obstetric and gynecologic (OBGYN) practice; however, it is now less frequently used. Description and analysis of this situation may shed some light on the change of OBGYN practice and education in Japan, which may at least partly hold true to counties other than Japan. METHODS: Three eras were classified according to the relationship between German and Japanese OBGYN, with each era characterized. Frequently used German words in Japanese OBGYN practice were described as examples. RESULTS: German words have become less frequently used with each successive generation. CONCLUSIONS: Even though English may suffice in practical OBGYN practice, German usage will still be passed on to these new generations. PMID- 29332219 TI - Desensitisation strategies in high-risk children before kidney transplantation. AB - BACKGROUND: Transplantation is the preferred modality for renal replacement therapy in children. With increasing rates of re-transplantation within the paediatric population, there are more sensitised children on waiting lists. One issue with developing strategies to treat these children is the number of different definitions of sensitisation. and we would therefore recommend an immunological risk stratification approach. METHODS: We discuss methods of sensitisation prevention, assessment and management, including paired exchange programmes and desensitisation protocols. RESULTS: There are limited published evidence-based data for desensitisation in adults and none in children; thus, we present information on the available therapies currently in use. DISCUSSION: Further research is required to investigate strategies which prevent sensitisation in children, including the healthcare utility of incorporating epitope-based matching into organ allocation algorithms. Controlled studies are also needed to establish the most appropriate desensitisation regimen(s). PMID- 29332222 TI - Efficacy of Crocus sativus (saffron) in treatment of major depressive disorder associated with post-menopausal hot flashes: a double-blind, randomized, placebo controlled trial. AB - PURPOSE: Due to concerns regarding the side effects of hormone therapy, many studies have focused on the development of non-hormonal agents for treatment of hot flashes. The aim of this study was to evaluate the efficacy and safety of saffron (stigma of Crocus sativus) in treatment of major depressive disorder associated with post-menopausal hot flashes. METHODS: Sixty women with post menopausal hot flashes participated in this study. The patients randomly received either saffron (30 mg/day, 15 mg twice per day) or placebo for 6 weeks. The patients were assessed using the Hot Flash-Related Daily Interference Scale (HFRDIS), Hamilton Depression Rating Scale (HDRS) and the adverse event checklist at baseline and also at the second, fourth, and sixth weeks of the study. RESULTS: Fifty-six patients completed the trial. Baseline characteristics of the participants did not differ significantly between the two groups. General linear model repeated measures demonstrated significant effect for time * treatment interaction on the HFRDIS score [F (3, 162) = 10.41, p = 0.0001] and HDRS score [F (3, 162) = 5.48, p = 0.001]. Frequency of adverse events was not significantly different between the two groups. CONCLUSIONS: Results from this study revealed that saffron is a safe and effective treatment in improving hot flashes and depressive symptoms in post-menopausal healthy women. On the other hand, saffron, with fewer side effects, may provide a non-hormonal and alternative herbal medicine option in treatment of women with hot flashes. PMID- 29332223 TI - Long-term efficacy of partial splenic embolization for the treatment of steroid resistant chronic immune thrombocytopenia. AB - Thrombopoietin-receptor agonists have been recently introduced for a second-line treatment of immune thrombocytopenia (ITP). Splenectomy has tended to be avoided because of its complications, but the response rate of splenectomy is 60-80% and it has still been considered for steroid-refractory ITP. We performed partial splenic embolization (PSE) as an alternative to splenectomy. Between 1988 and 2013, 91 patients with steroid-resistant ITP underwent PSE at our hospital, and we retrospectively analyzed the efficacy and long-term outcomes of PSE. The complete response rate (CR, platelets > 100 * 109/L) was 51% (n = 46), and the overall response rate (CR plus response (R), > 30 * 109/L) was 84% (n = 76). One year after PSE, 70% of patients remained CR and R. The group with peak platelet count after PSE >= 300 * 109/L (n = 29) exhibited a significantly higher platelet count than the group with platelet count < 300 * 109/L (n = 40) at any time point after PSE. The failure-free survival (FFS) rates at 1, 5, and 10 years were 78, 56, and 52%, respectively. Second PSE was performed in 20 patients who relapsed (n = 14) or had no response to the initial PSE (n = 6), and the overall response was achieved in 63% patients. There were no PSE-related deaths. These results indicate that PSE is a safe and effective alternative therapy to splenectomy for patients with steroid-resistant ITP as it generates long-term, durable responses. PMID- 29332224 TI - Phosphatidylserine-exposing blood and endothelial cells contribute to the hypercoagulable state in essential thrombocythemia patients. AB - The mechanisms of thrombogenicity in essential thrombocythemia (ET) are complex and not well defined. Our objective was to explore whether phosphatidylserine (PS) exposure on blood cells and endothelial cells (ECs) can account for the increased thrombosis and distinct thrombotic risks among mutational subtypes in ET. Using flow cytometry and confocal microscopy, we found that the levels of PS exposing erythrocytes, platelets, leukocytes, and serum-cultured ECs were significantly higher in each ET group [JAK2, CALR, and triple-negative (TN) (all P < 0.001)] than those in controls. Among ET patients, those with JAK2 mutations showed higher levels of PS-positive erythrocytes, platelets, neutrophils, and serum-cultured ECs than TN patients or those with CALR mutations, which show similar levels. Coagulation function assays showed that higher levels of PS positive blood cells and serum-cultured ECs led to markedly shortened coagulation time and dramatically increased levels of FXa, thrombin, and fibrin production. This procoagulant activity could be largely blocked by addition of lactadherin (approx. 70% inhibition). Confocal microscopy showed that the FVa/FXa complex and fibrin fibrils colocalized with PS on ET serum-cultured ECs. Additionally, we found a relationship between D-dimer, prothrombin fragment F1 + 2, and PS exposure. Our study reveals a previously unrecognized link between hypercoagulability and exposed PS on cells, which might also be associated with distinct thrombotic risks among mutational subtypes in ET. Thus, blocking PS binding sites may represent a new therapeutic target for preventing thrombosis in ET. PMID- 29332226 TI - Monocortical fixation of the coracoid in the Latarjet procedure is significantly weaker than bicortical fixation. AB - PURPOSE: A crucial step of the Latarjet procedure is the fixation of the coracoid process onto the glenoid. Multiple problems associated with the fixation have been described, including lesions of the suprascapular nerve due to prominence of the screw or bicortical drilling. The purpose of the present study was to evaluate whether monocortical fixation, without perforating the posterior glenoid cortex, would provide sufficient graft stability. METHODS: Coracoid transfer was performed in 14 scapula models (Sawbones(r), Composite Scapula, 4th generation). Two groups were assigned: in one group, fixation was achieved with two screws that did not perforate the posterior cortex of the glenoid neck (monocortical fixation), in the other group, fixation was achieved with perforation of the posterior cortex (bicortical fixation). The ultimate failure load and mode of failure were evaluated biomechanically. RESULTS: Monocortical fixation was a significantly weaker construct than bicortical fixation (median failure load 221 N, interquartile range 211-297 vs. median failure load 423 N, interquartile range 273-497; p = 0.017). Failure was either due to a pullout of the screws from the socket or a fracture of the glenoid. There was no significant difference in the mode of failure between the two groups (n.s.). CONCLUSION: Monocortical fixation was significantly weaker than bicortical fixation. However, bicortical drilling and overly long screws may jeopardize the suprascapular nerve. Thus, anatomic knowledge about the safe zone at the posterior rim of the glenoid is crucial. Until further research has evaluated, if the inferior stability is clinically relevant, clinicians should be cautious to use a monocortical fixation technique for the coracoid graft. PMID- 29332225 TI - Over 90 % of children and adolescents return to sport after anterior cruciate ligament reconstruction: a systematic review and meta-analysis. AB - PURPOSE: To evaluate the rate at which children and adolescent athletes return to sporting activities after anterior cruciate ligament (ACL) reconstruction. METHODS: Three databases, PubMed, MEDLINE, and EMBASE, were searched from database inception until September 9, 2017 by two reviewers independently and in duplicate. The inclusion criteria were English language studies that reported return to sport outcomes. Book chapters, conference papers, review articles, and technical reports were excluded. The rate of return to sports was combined in a meta-analysis of proportions using a random-effects model. RESULTS: Overall, 20 studies with a combined total of 1156 ACL reconstructions met the inclusion criteria, with a mean age of 14.3 years (range 6-19) and a mean follow-up time of 6.5 years (range 1-22). All studies were level IV evidence (14 retrospective case series and 6 prospective case series). The pooled rate of return to any sport participation was 92.0% [95% confidence interval (CI), 86-96%]. The pooled rate of return to pre-injury level of sport was 78.6% (95% CI 71-86%) and that to competitive level of sport was 81.0% (95% CI 62-94%). A total of 93 of the 717 assessed athletes (13%) sustained re-injuries with graft ruptures, and in 91 of 652 patients (14%), contralateral ACL injuries were reported on final follow-up. CONCLUSION: Pooled results suggest a high rate of return to sport following ACL reconstruction in children and adolescent athletes; however, this is associated with a relatively high rate of graft rupture and a similar rate of contralateral ACL injury. This study provides clinicians with evidence-based data on the ability of children and adolescent athletes to return to sport after ACL reconstruction, an important consideration for athletes of this population with ACL injuries. LEVEL OF EVIDENCE: IV, systematic review of level IV studies. PMID- 29332227 TI - Accommodative esotropia: the state of the art. AB - PURPOSE: To review the state of the art of Accommodative Esotropia (AE) through careful study of what has been reported up to the point in literature. METHODS: A literature search was done on PubMed using key words including "Accommodative esotropia", "Infantile esotropia", "Strabismus" and "Accommodation". We systematically reviewed and critically appraised what has been written about AE and we tried to analyze that according to the current management of AE. RESULTS: Accommodative Esotropia (AE) is a form of strabismus characterized by convergent misalignment of the visual axes that can be associated with hyperopia and abnormal fusional divergence. Also abnormal accommodative convergence/accommodation ratio could be found. In lots of cases, AE initially presents as an intermittent esodeviation at age 1.5 to 4 years. The prevalence of AE has been estimated near 1-2% in the United States. The only treatment with an optical correction usually is successful in re-establishing alignment, but surgical correction is necessary in approximately 30% of cases. PMID- 29332228 TI - Comparative evaluation of the aqueous humor proteome of primary angle closure and primary open angle glaucomas and age-related cataract eyes. AB - PURPOSE: To analyze and compare the total proteome of aqueous humor (AH) from patients having primary angle closure glaucoma (PACG), primary open angle glaucoma (POAG) and age-related cataract. MATERIALS AND METHODOLOGY: Aqueous humor was collected from age-matched PACG, POAG and cataract patients who underwent surgery, and it was immediately stored at - 80 degrees C until analysis. From each sample, 25 ug of total protein was subjected to trypsin digestion and subsequently LC-MS/MS analysis was performed for the deep proteome analysis. The data acquired after the LC-MS/MS analysis were analyzed using Proteome Discoverer 1.4. The identified peptide matches were validated using percolator, at less than 1% false discovery rates. RESULTS: A total of 625, 594 and 636 proteins were identified in PACG, POAG and cataract groups, respectively (n = 9 in each group). The inter-group comparison among all these groups showed that 246 proteins were identified in all the three groups. An average of 236 +/- 42, 218 +/- 40 and 214 +/- 62 proteins from each AH sample of PACG, POAG and cataract, respectively, was identified. There were 53 proteins commonly found in all 9 PACG AH, 59 proteins in POAG AH and 42 proteins in 9 cataracts AH samples. In the individual analysis, there were 28 proteins found in all the samples analyzed representing the "constitutive AH proteome." Spectral counting analysis of 246 proteins identified in all three group types showed significant differences in protein abundance. In proteins unique to PACG AH, 7 proteins viz. ARHGEF12, APC2, WAS, PIK3CG, ITGB1, MSN and PFN1 out of 226 were found in "Regulation of Actin Cytoskeleton" pathway, whereas in POAG 5 out of 206 proteins viz. ADCY2, ITPR1, MAPK3, MAP3K2 and TUBB1 were found in "Gap Junction" pathway. CONCLUSIONS: A qualitative as well as a quantitative comparison of proteomes of AH from PACG, POAG and age-related cataract eyes showed significant differences, thus providing clues to the disease pathophysiology. PMID- 29332229 TI - Sociability modifies dogs' sensitivity to biological motion of different social relevance. AB - Preferential attention to living creatures is believed to be an intrinsic capacity of the visual system of several species, with perception of biological motion often studied and, in humans, it correlates with social cognitive performance. Although domestic dogs are exceptionally attentive to human social cues, it is unknown whether their sociability is associated with sensitivity to conspecific and heterospecific biological motion cues of different social relevance. We recorded video clips of point-light displays depicting a human or dog walking in either frontal or lateral view. In a preferential looking paradigm, dogs spontaneously viewed 16 paired point-light displays showing combinations of normal/inverted (control condition), human/dog and frontal/lateral views. Overall, dogs looked significantly longer at frontal human point-light display versus the inverted control, probably due to its clearer social/biological relevance. Dogs' sociability, assessed through owner-completed questionnaires, further revealed that low-sociability dogs preferred the lateral point-light display view, whereas high-sociability dogs preferred the frontal view. Clearly, dogs can recognize biological motion, but their preference is influenced by their sociability and the stimulus salience, implying biological motion perception may reflect aspects of dogs' social cognition. PMID- 29332230 TI - A cardioid oscillator with asymmetric time ratio for establishing CPG models. AB - Nonlinear oscillators are usually utilized by bionic scientists for establishing central pattern generator models for imitating rhythmic motions by bionic scientists. In the natural word, many rhythmic motions possess asymmetric time ratios, which means that the forward and the backward motions of an oscillating process sustain different times within one period. In order to model rhythmic motions with asymmetric time ratios, nonlinear oscillators with asymmetric forward and backward trajectories within one period should be studied. In this paper, based on the property of the invariant set, a method to design the closed curve in the phase plane of a dynamic system as its limit cycle is proposed. Utilizing the proposed method and considering that a cardioid curve is a kind of asymmetrical closed curves, a cardioid oscillator with asymmetric time ratios is proposed and realized. Through making the derivation of the closed curve in the phase plane of a dynamic system equal to zero, the closed curve is designed as its limit cycle. Utilizing the proposed limit cycle design method and according to the global invariant set theory, a cardioid oscillator applying a cardioid curve as its limit cycle is achieved. On these bases, the numerical simulations are conducted for analyzing the behaviors of the cardioid oscillator. The example utilizing the established cardioid oscillator to simulate rhythmic motions of the hip joint of a human body in the sagittal plane is presented. The results of the numerical simulations indicate that, whatever the initial condition is and without any outside input, the proposed cardioid oscillator possesses the following properties: (1) The proposed cardioid oscillator is able to generate a series of periodic and anti-interference self-exciting trajectories, (2) the generated trajectories possess an asymmetric time ratio, and (3) the time ratio can be regulated by adjusting the oscillator's parameters. Furthermore, the comparison between the simulated trajectories by the established cardioid oscillator and the measured angle trajectories of the hip angle of a human body show that the proposed cardioid oscillator is fit for imitating the rhythmic motions of the hip of a human body with asymmetric time ratios. PMID- 29332232 TI - Prone position in ARDS: a simple maneuver still underused. PMID- 29332231 TI - Stage-specific therapeutic strategies of medication-related osteonecrosis of the jaws: a systematic review and meta-analysis of the drug suspension protocol. AB - OBJECTIVE: The most debated topic about medication-related osteonecrosis of the jaws (MRONJ) is its therapy, as there are no definitive guidelines. The aims of this systematic review were (a) to outline the best therapeutic approach according to the stage at diagnosis and (b) to perform a meta-analysis to assess whether the drug-holiday protocol may be or not an effective method in the management of MRONJ patients. MATERIALS AND METHODS: The systematic review was performed following the PRISMA principles. Results were screened according to inclusion and exclusion criteria regarding staging before/after treatment, follow up, and information provided by the authors. For statistical analysis, linear variables are reported as means and standard deviations, medians, and inter quartile range (IQR); normality of data, according to the distribution of complete healing (primary outcome variable), was assessed with the Kolmogorov Smirnov test. A p value < 0.05 was considered statistically significant for all tests. RESULTS: Thirteen studies were selected out of 1480. None of them was case controlled or randomized. Conservative approach showed good results at early stages, but heterogeneous result at advanced stages (100% stage 0, stage I range 81-97%, stage II range 63.6-100%, stage III 73%). Surgical approach showed heterogeneous results at all stages (stage I range 0-100%, stage II range 52 100%, stage III range 50-100%). Statistical analysis showed a significantly higher prevalence of completely healed sites in patients who followed the drug holiday protocol. CONCLUSIONS: The results suggest that the current stage specific approach for MRONJ therapy is based on a sound clinical rationale. Conservative treatment appears to yield better outcomes at early stages, while further investigations are needed to elucidate the best protocols for the management of advanced stages. The drug-holiday protocol statistically promotes complete healing after oral surgery procedures but the application should be dictated by the condition of each patient. CLINICAL RELEVANCE: At present, early MRONJ stages should be primarily treated by means of a conservative approach while more advanced stages must be carefully evaluated. Individual decisions should be made for every single case even with respect to the drug-holiday protocol. PMID- 29332233 TI - Pilot study of serial FLT and FDG-PET/CT imaging to monitor response to neoadjuvant chemoradiotherapy of esophageal adenocarcinoma: correlation with histopathologic response. AB - OBJECTIVE: The aim of this prospective pilot study was to investigate the potential of serial FLT-PET/CT compared to FDG-PET/CT to provide an early indication of esophageal cancer response to concurrent neoadjuvant chemoradiation therapy. METHODS: Five patients with biopsy-proven esophageal adenocarcinomas underwent neoadjuvant chemoradiation (Tx) prior to minimally invasive esophagectomy. The presence of residual tumor was classified histologically using the Mandard et al. criteria, categorizing patients as pathologic responders and non-responders. Participants underwent PET/CT imaging 1 h after intravenous administration of FDG and of FLT on two separate days within 48 h of each other. Each patient underwent a total of 3 scan "pairs": (1) pre-treatment, (2) during treatment, and (3) post-treatment. Image-based response to therapy was measured in terms of changes in SUVmax (DeltaSUV) between pre- and post-therapeutic FLT- and FDG-PET scans. The PET imaging findings were correlated with the pathology results after surgery. RESULTS: All tumors were FDG and FLT avid at baseline. Lesion FLT uptake was lower than with FDG. Neoadjuvant chemoradiation resulted in a reduction of tumor uptake of both radiotracers in pathological responders (n = 3) and non-responders (n = 2). While the difference in the reduction in mean tumor FLT uptake during Tx between responders (DeltaSUV = - 55%) and non responders (DeltaSUV = - 29%) was significant (P = 0.007), for FDG it was not, [responders had a mean DeltaSUV = - 39 vs. - 31% for non-responders (P = 0.74)]. The difference in the reduction in tumor FLT uptake at the end of treatment between responders (DeltaSUV = - 62%) and non-responders (DeltaSUV = - 57%) was not significant (P = 0.54), while for FDG there was a trend toward significance [DeltaSUV of responders = - 74 vs. - 52% in non-responders (P = 0.06)]. CONCLUSION: The results of this prospective pilot study suggest that early changes in tumor FLT uptake may be better than FDG in predicting response of esophageal adenocarcinomas to neoadjuvant chemoradiation. These preliminary results support the need to corroborate the value of FLT-PET/CT in a larger cohort. PMID- 29332234 TI - Attitudes of U.S. Psychiatry Residents and Fellows towards Mental Illness and its Causes: a Comparison Study with Medical Students. AB - Stigma towards people with mental illness remains a burden for patients and healthcare providers. This study at a large US university examined the attitudes of psychiatry residents and fellows towards mental illness and its causes, and whether their attitudes differed from the medical student attitudes previously studied utilizing the same survey method. An electronic questionnaire examining attitudes toward people with mental illness, causes of mental Illness, and treatment efficacy was used to survey the attitudes of psychiatry residents and fellows. Exploratory factor analysis derived from the authors' medical student survey was used to examine attitudinal factors. The study response rate was 54.2% (n = 94). Factor analysis employed three factors previously identified reflecting social acceptance of mental illness, belief in supernatural causes, and belief in biopsychosocial causes. Residents and fellows reporting more personal experiences with mental illness, both as a group and when compared with medical students, were significantly more willing to socialize with the mentally ill. Respondents who had more professional (work) experience other than medical school or post graduate training were less likely to believe in supernatural causes of mental illness. Female residents and fellows were more willing to socialize with the mentally ill, and were less likely to believe in supernatural causes for mental illness than their male counterparts. In our study, increased social acceptance of the mentally ill relates to having personal experiences, advanced training in psychiatry, and female gender. Both professional experiences outside of training and female gender reduced the belief in supernatural causes. PMID- 29332235 TI - Do Diary Studies Cause Behavior Change? An Examination of Reactivity in Sexual Risk and Substance Use in Young Men Who Have Sex with Men. AB - Behavioral diaries are frequently used for observing sexual and substance use behaviors, but participating in diary studies may cause behavior change. This study examined change in sexual and substance use behaviors among young men who have sex with men (YMSM) in a two-month diary study compared to control. An analytic sample of 324 YMSM was randomized to receive daily diaries, weekly diaries, or no diaries (control) for 2 months. Half of the diary participants were randomized to receive automated weekly feedback. Between-subjects analyses found no evidence of change in sexual or substance use behaviors from baseline to 2-month follow-up when comparing the diary conditions to control. Within-persons growth mixture models of all diary data showed significant decreases in condomless anal sex (CAS) and illicit drug use. Weekly automated feedback had no effect on behavior change. Findings provide evidence of change in CAS and illicit drug use amongst diary participants. PMID- 29332236 TI - Child Desire Among Men and Women Living with HIV/AIDS in the Traditional Culture of Vietnam. AB - In various settings, heterogeneity in fertility rates among HIV-affected couples highlights the importance of understanding contextual factors to inform program planning and implementation. We interviewed 1016 patients with HIV/AIDS at seven clinics in Vietnam to assess their desire to have a(nother) child and willingness to pay (WTP) for prevention of mother to child transmission (PMTCT) services. One fifth of participants reported their desire for a(another) child and this was slightly higher among men than women. Factors associated with the desire to have a(nother) child of HIV/AIDS patients included (1) not yet have a child or a son, (2) provincial and district-level service, (3) income per capita, (4) marital status and (5) history of drug injection. The average WTP for PMTCT service was US $179 (95% CI 161-197). The study highlights the need for interventions on social, cultural barriers, improved accessibility and outcomes of counseling, and better care and treatment services for couples and child affected by HIV/AIDS. PMID- 29332237 TI - Acute acetaminophen ingestion improves performance and muscle activation during maximal intermittent knee extensor exercise. AB - AIM: Acetaminophen is a commonly used medicine for pain relief and emerging evidence suggests that it may improve endurance exercise performance. This study investigated some of the physiological mechanisms by which acute acetaminophen ingestion might blunt muscle fatigue development. METHODS: Thirteen active males completed 60 * 3 s maximum voluntary contractions (MVC) of the knee extensors with each contraction separated by a 2 s passive recovery period. This protocol was completed 60 min after ingesting 1 g of maltodextrin (placebo) or 1 g of acetaminophen on two separate visits. Peripheral nerve stimulation was administered every 6th contraction for assessment of neuromuscular fatigue development, with the critical torque (CT), which reflects the maximal sustainable rate of oxidative metabolism, taken as the mean torque over the last 12 contractions. Surface electromyography was recorded continuously as a measure of muscle activation. RESULTS: Mean torque (61 +/- 11 vs. 58 +/- 14% pre-exercise MVC) and CT (44 +/- 13 vs. 40 +/- 15% pre-exercise MVC) were greater in the acetaminophen trial compared to placebo (both P < 0.05). Voluntary activation and potentiated twitch declined at a similar rate in both conditions (P > 0.05). However, the decline in electromyography amplitude was attenuated in the acetaminophen trial, with electromyography amplitude being greater compared to placebo from 210 s onwards (P < 0.05). CONCLUSION: These findings indicate that acute acetaminophen ingestion might be ergogenic by increasing CT and preserving muscle activation during high-intensity exercise. PMID- 29332238 TI - Normal variation in sagittal spinal alignment parameters in adult patients: an EOS study using serial imaging. AB - PURPOSE: To describe normal variations in sagittal spinal radiographic parameters over an interval period and establish physiological norms and guidelines for which these images should be interpreted. METHODS: Data were prospectively collected from a continuous series of adult patients with first-episode mild low back pain presenting to a single institution. The sagittal parameters of two serial radiographic images taken 6-months apart were obtained with the EOS(r) slot scanner. Measured parameters include CL, TK, TL, LL, PI, PT, SS, and end and apical vertebrae. Chi-squared test and Wilcoxon Signed Rank test were used to compare categorical and continuous variables, respectively. RESULTS: Sixty patients with a total of 120 whole-body sagittal X-rays were analysed. Mean age was 52.1 years (SD 21.2). Mean interval between the first and second X-rays was 126.2 days (SD 47.2). Small variations (< 1 degrees ) occur for all except PT (1.2 degrees ), CL (1.2 degrees ), and SVA (2.9 cm). Pelvic tilt showed significant difference between two images (p = 0.035). Subgroup analysis based on the time interval between X-rays, and between the first and second X-rays, did not show significant differences. Consistent findings were found for end and apical vertebrae of the thoracic and lumbar spine between the first and second X rays for sagittal curve shapes. CONCLUSIONS: Radiographic sagittal parameters vary between serial images and reflect dynamism in spinal balancing. SVA and PT are predisposed to the widest variation. SVA has the largest variation between individuals of low pelvic tilt. Therefore, interpretation of these parameters should be patient specific and relies on trends rather than a one-time assessment. PMID- 29332239 TI - Which parameters are relevant in sagittal balance analysis of the cervical spine? A literature review. AB - INTRODUCTION: Cervical spine is part of the spine with the most mobility in the sagittal plane. It is important for surgeons to have reliable, simple and reproducible parameters to analyse the cervical. MATERIAL AND METHOD: This study is a systematic review and a critique of current parameters to help improve the study of cervical spinal balance. We conducted a systematic search of PUBMED/MEDLINE for literature published since January 2014. Only studies written in English and containing abstracts were considered for inclusion. The search performed was: "C7 slope" OR "T1 slope" OR "C2C7 offset" OR "C2C7 lordosis" OR "cervical SVA (sagittal vertical axis)" OR "TIA (thoracic inlet angle)" (Lee et al., J Spinal Disord Tech 25(2):E41-E47, 2012) OR "SCA (spino-cranial angle)". Exclusion criteria were purely post-operative and cadaveric analysis, studies performed with CT scan or MRI, studies on adolescent idiopathic scoliosis, traumatology studies and no standing analysis of the cervical spine. Relevance was confirmed by investigators if cervical parameters was a major criteria of the study. RESULTS: 138 articles were found by the electronic search. After complete evaluation 20 articles were selected. The large majority of papers used the same parameters C2_C7 lordosis, C2-C7 SVA, T1 slope or C7 slope and T1 slope/cervical lordosis mismatch. Janusz reported a new parameter using a retrospective cohort of patient with cervical radiculopathy: the TIA (thoracic inlet angle). Le Huec reported an other new parameter based on a prospective study of asymptomatic volunteer: the spino-cranial angle (SCA). This parameter is highly correlated with the C7 slope and the cervical lordosis. Other studies reported parameters that are more global balance analysis including the cervical spine than cervical spine balance itself. CONCLUSION: The most important parameters to analyse the cervical sagittal balance according to the literature available today for good clinical outcomes are the following: C7 or T1 slope, average value 20 degrees , must not be higher than 40 degrees . cSVA must not be less than 40 degrees C (mean value 20 mm). SCA (spine cranial angle) must stay in a norm (83 degrees +/ 9 degrees ). Future studies should focus on those three parameters to analyse and compare pre and post op data and to correlate the results with the quality of life improvement. PMID- 29332240 TI - Preperitoneal closed-system suction drainage after totally extraperitoneal hernioplasty in the prevention of early seroma formation: a prospective double blind randomised controlled trial. AB - OBJECTIVES: Seroma is a virtually unavoidable early sequela after TEP hernioplasty. This randomised controlled trial evaluated the outcomes of preperitoneal closed-system suction drainage in laparoscopic totally extraperitoneal (TEP) hernioplasty for inguinal hernia. METHODS: Ninety patients aged 18-80 years who presented to our hospital between May 2016 and February 2017 with primary unilateral inguinal hernia were randomised into the preperitoneal drain and no-drain groups. The primary outcome was seroma size on postoperative day 6. Secondary outcomes included clinical seroma formation and seroma size on day 1, day 6, 1 and 7 months postoperatively, length of postoperative stay, pain score, and recurrence. RESULTS: There was no significant difference in age, sex, co-morbidities, hernia side, mean hernia size, operating time, fixation adjuncts, or postoperative stay. The overall incidence of clinical seroma formation was 25.6% on postoperative day 1, 60.3% on postoperative day 6, 13.2% 1 month and 0% 7 months postoperatively. The mean drain output was 57.9 ml. The drain group had significantly fewer patients with seroma on day 1 (6 vs 14, p = 0.022) and day 6 (17 vs 30, p = 0.000), and a smaller mean seroma size on days 1 and 6 (p = 0.000). Subgroup analysis showed that sac ligation versus reduction, peritoneal perforation, and fixation adjuncts had no significant effects on seroma formation or size. There is a trend of lower early post-operation VAS score and more urinary retention in drain group was observed but not reaching statistical significance. No differences in postoperative pain score or complications were observed at 1 and 7 months' post operation. CONCLUSIONS: Preperitoneal drainage for 23 h after laparoscopic TEP hernioplasty for inguinal hernia can effectively decrease seroma formation in the early postoperative period, and potentially improving postoperative pain. The benefit is short-term and no significant difference was demonstrated after 1-month post operations. This tradition technique applied to novel operative repair of inguinal hernia is safe and feasible with no significant morbidity demonstrated. Preperitoneal drainage after TEP can be considered as an option to improve patient satisfactions and recovery in selected patient group for maximal benefit, especially for those with prolonged operation which may associate with higher chance of seroma formation. PMID- 29332241 TI - Atrial fibrillation is associated with sudden cardiac death: a systematic review and meta-analysis. AB - PURPOSE: Recent studies suggest that atrial fibrillation (AF) is associated with increased cardiovascular risk and mortality including sudden cardiac death (SCD). According to the Cardiovascular Heath Study cohort, the incident rate of SCD was higher in the AF population (2.9 per 1000 per year) compared with non-AF controls (1.3 per 1000 per year). In this study, we performed a systematic review and meta analysis to explore the association between AF and SCD. METHODS: We comprehensively searched the databases of MEDLINE and EMBASE from inception to January 2017. Included studies were published prospective or retrospective cohort studies that compared the risk of developing SCD, defined by World Health Organization's criteria, in AF patients versus non-AF patients. Data from each study were combined using the random-effects, generic inverse variance method of DerSimonian and Laird to calculate the risk ratios and 95% confidence intervals. RESULTS: Twenty-seven studies from January 1991 to February 2017 involving 8401 AF patients and 67,608 non-AF controls were included in this meta-analysis. Compared with controls, AF patients had a significantly higher risk of SCD in overall analysis (pooled risk ratio = 2.04, 95% confidence interval: 1.77-2.35, p < 0.01, I2 = 42.66) as well as subgroups of general population studies, previous myocardial infarction or coronary artery disease, heart failure, hypertrophic cardiomyopathy (HCM), Brugada syndrome, and patients with either a pacemaker or implantable cardioverter defibrillator (ICD). In subgroup analysis of multivariate-adjusted studies, AF also had a significantly higher risk of SCD (pooled risk ratio = 2.22, 95% confidence interval = 1.59-3.09, p < 0.01, I2 = 73.95). Incident rate of SCD in AF was 2-fold higher than controls but not statistically significant (pooled rate ratio = 2.06, 95% confidence interval = 0.66-7.53, p = 0.292, I2 = 88.58). CONCLUSIONS: Our meta-analysis demonstrates a statistically significant increased risk of SCD with AF in the general population and in those with previous myocardial infarction, coronary artery disease, heart failure, HCM, Brugada syndrome, and an implanted rhythm device. PMID- 29332242 TI - Selective IKK2 inhibitor IMD0354 disrupts NF-kappaB signaling to suppress corneal inflammation and angiogenesis. AB - Corneal neovascularization is a sight-threatening condition caused by angiogenesis in the normally avascular cornea. Neovascularization of the cornea is often associated with an inflammatory response, thus targeting VEGF-A alone yields only a limited efficacy. The NF-kappaB signaling pathway plays important roles in inflammation and angiogenesis. Here, we study consequences of the inhibition of NF-kappaB activation through selective blockade of the IKK complex IkappaB kinase beta (IKK2) using the compound IMD0354, focusing on the effects of inflammation and pathological angiogenesis in the cornea. In vitro, IMD0354 treatment diminished HUVEC migration and tube formation without an increase in cell death and arrested rat aortic ring sprouting. In HUVEC, the IMD0354 treatment caused a dose-dependent reduction in VEGF-A expression, suppressed TNFalpha-stimulated expression of chemokines CCL2 and CXCL5, and diminished actin filament fibers and cell filopodia formation. In developing zebrafish embryos, IMD0354 treatment reduced expression of Vegf-a and disrupted retinal angiogenesis. In inflammation-induced angiogenesis in the rat cornea, systemic selective IKK2 inhibition decreased inflammatory cell invasion, suppressed CCL2, CXCL5, Cxcr2, and TNF-alpha expression and exhibited anti-angiogenic effects such as reduced limbal vessel dilation, reduced VEGF-A expression and reduced angiogenic sprouting, without noticeable toxic effect. In summary, targeting NF kappaB by selective IKK2 inhibition dampened the inflammatory and angiogenic responses in vivo by modulating the endothelial cell expression profile and motility, thus indicating an important role of NF-kappaB signaling in the development of pathologic corneal neovascularization. PMID- 29332243 TI - Photosystem I with benzoquinone analogues incorporated into the A1 binding site. AB - Time-resolved FTIR difference spectroscopy has been used to study photosystem I (PSI) particles with three different benzoquinones [plastoquinone-9 (PQ), 2,6 dimethyl-1,4-benzoquinone (DMBQ), 2,3,5,6-tetrachloro-1,4-benzoquinone (Cl4BQ)] incorporated into the A1 binding site. If PSI samples are cooled in the dark to 77 K, the incorporated benzoquinones are shown to be functional, allowing the production of time-resolved (P700+A1--P700A1) FTIR difference spectra. If samples are subjected to repetitive flash illumination at room temperature prior to cooling, however, the time-resolved FTIR difference spectra at 77 K display contributions typical of the P700 triplet state (3P700), indicating a loss of functionality of the incorporated benzoquinones, that occurs because of double protonation of the incorporated benzoquinones. The benzoquinone protonation mechanism likely involves nearby water molecules but does not involve the terminal iron-sulfur clusters FA and FB. These results and conclusions resolve discrepancies between results from previous low-temperature FTIR and EPR studies on similar PSI samples with PQ incorporated. PMID- 29332244 TI - Structural insights into the function of Elongator. AB - Conserved from yeast to humans, Elongator is a protein complex implicated in multiple processes including transcription regulation, alpha-tubulin acetylation, and tRNA modification, and its defects have been shown to cause human diseases such as familial dysautonomia. Elongator consists of two copies of six core subunits (Elp1, Elp2, Elp3, Elp4, Elp5, and Elp6) that are organized into two subcomplexes: Elp1/2/3 and Elp4/5/6 and form a stable assembly of ~ 850 kDa in size. Although the catalytic subunit of Elongator is Elp3, which contains a radical S-adenosyl-L-methionine (SAM) domain and a putative histone acetyltransferase domain, the Elp4/5/6 subcomplex also possesses ATP-modulated tRNA binding activity. How at the molecular level, Elongator performs its multiple functions and how the different subunits regulate Elongator's activities remains poorly understood. Here, we provide an overview of the proposed functions of Elongator and describe how recent structural studies provide new insights into the mechanism of action of this multifunctional complex. PMID- 29332246 TI - An historical perspective of the discovery of titin filaments -Part 2. AB - In 2017, a Special Issue of Biophysical Reviews was devoted to "Titin and Its Binding Partners. The issue contained a review: "An historical perspective of the discovery of titin filaments" by dos Remedios and Gilmour that was intended to be a history of the discovery of the giant protein titin, previously named connectin. The review took readers back to the earliest discovery of the so called third filament component of skeletal and cardiac muscle sarcomeres and ended in 1969. Recently, my colleague Shin'ichi Ishiwata gently reminded me of two papers published in 1990 and 1993 that were unwittingly omitted from the original historical perspective. In the first paper (J Cell Biol 110:53-62, 1990), Funatsu et al. examined the elastic filaments in skeletal muscle using a combination of light and electron microscopy, but they also measured resting as well as passive stiffness mechanical measurements to establish that connectin (titin) is responsible for both stiffness and fiber tension. In the second paper (J Cell Biol 120:711-724, 1993), Funatsu et al. used permeabilised cardiac muscle myocytes (from rabbit papillary muscles) and focussed on filament ultrastructure using either freeze-substitution or deep-etched replica methods to visualise connectin/titin filaments in fibers with and without actin and myosin filaments. PMID- 29332247 TI - Practical advantages of contrast-enhanced ultrasound in abdominopelvic radiology. AB - Computed tomography (CT) and magnetic resonance imaging (MRI) are two of the workhorse modalities of abdominopelvic radiology. However, these modalities are not without patient- and technique-specific limitations that may prevent a timely and accurate diagnosis. Contrast-enhanced ultrasound (CEUS) is an effective, rapid, and cost-effective imaging modality with expanding clinical utility in the United States. In this pictorial essay, we provide a case-based discussion demonstrating the practical advantages of CEUS in evaluating a variety of pathologies in which CT or MRI was precluded or insufficient. Through these advantages, CEUS can serve a complementary role with CT and MRI in comprehensive abdominopelvic radiology. PMID- 29332245 TI - Reprogramming the metabolome rescues retinal degeneration. AB - Metabolomics studies in the context of ophthalmology have largely focused on identifying metabolite concentrations that characterize specific retinal diseases. Studies involving mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy have shown that individuals suffering from retinal diseases exhibit metabolic profiles that markedly differ from those of control individuals, supporting the notion that metabolites may serve as easily identifiable biomarkers for specific conditions. An emerging branch of metabolomics resulting from biomarker studies, however, involves the study of retinal metabolic dysfunction as causes of degeneration. Recent publications have identified a number of metabolic processes-including but not limited to glucose and oxygen metabolism-that, when perturbed, play a role in the degeneration of photoreceptor cells. As a result, such studies have led to further research elucidating methods for prolonging photoreceptor survival in an effort to halt degeneration in its early stages. This review will explore the ways in which metabolomics has deepened our understanding of the causes of retinal degeneration and discuss how metabolomics can be used to prevent retinal degeneration from progressing to its later disease stages. PMID- 29332248 TI - Performance of diffusion-weighted magnetic resonance imaging at 3.0T for early assessment of tumor response in locally advanced rectal cancer treated with preoperative chemoradiation therapy. AB - PURPOSE: The purpose of the article is to determine whether changes in apparent diffusion coefficient (ADC) values of locally advanced rectal cancer (LARC) obtained 2 weeks after the beginning of chemoradiation therapy (CRT) allow to predict treatment response and whether correlate with tumor histopathologic response. METHODS: Forty-three patients receiving CRT for LARC and 3.0T magnetic resonance imaging with diffusion-weighted sequences before treatment, 2 weeks during, and 8 weeks post the completion of CRT were included. ADC values were calculated at each time point and percentage of ADC changes at 2 weeks (DeltaADC during) and 8 weeks (DeltaADC post) were assessed. Data were correlated to surgical results and histopathologic tumor regression grade (TRG), according to Mandard's classification. ADC values and DeltaADCs of complete responders (CR; TRG1) and non-complete responders (non-CR; TRG 2-5) were compared. Receiver operating characteristic curve (ROC) analysis was used to assess diagnostic accuracy of DeltaADC for differentiating CR from non-CR. The correlation with TRG was investigated using Spearman's rank test. RESULTS: DeltaADC during and DeltaADC post were significantly higher in CR (33.9% and 57%, respectively) compared to non-CR (13.5% and 2.2%, respectively) group (p = 0.006 and p < 0.001, respectively). ROC analysis revealed the following diagnostic performances: DeltaADC during: AUC 0.78 (0.08), p = 0.004, cut-off 20.6% (sensitivity 75% and specificity 76.5%); DeltaADC post: AUC 0.94 (0.04), p <= 0.001, cut-off 22% (sensitivity 95% and specificity 82.4%). Significant moderate and good negative correlation was found between DeltaADC during and DeltaADC post and TRG (r = - 0.418, p = 0.007; r = - 694, p <= 0.001, respectively). CONCLUSION: DeltaADC at 2 weeks after the beginning of CRT is a reliable tool to early assess treatment response. PMID- 29332249 TI - Correlation of flow density, as measured using optical coherence tomography angiography, with structural and functional parameters in glaucoma patients. AB - PURPOSE: To evaluate the correlation between flow density, as measured by optical coherence tomography angiography (OCTA), and structural and functional parameters in patients with open-angle glaucoma. METHODS: Thirty-four eyes of 34 patients with open-angle glaucoma and 35 eyes of 35 healthy subjects were prospectively included in this study. OCTA was performed using RTVue XR Avanti with AngioVue. The macula was imaged with a 3 * 3 mm scan and the optic nerve head (ONH) with a 4.5 * 4.5 mm scan. Visual field parameters [mean deviation (MD), pattern standard deviation (PSD) and visual field index (VFI)], Bruch's membrane opening minimal rim width (BMO-MRW), retinal nerve fiber layer thickness (RNFLT) and the stereometric parameters rim area, cup/disc area (HRT III, Heidelberg Retina Tomograph, Heidelberg Engineering) were tested for correlation with flow density data. RESULTS: The flow density (whole en face) in the retinal OCT angiograms (superficial: p = 0.01; deep: p = 0.005), in the radial peripapillary capillary network (p < 0.001) and in the OCT angiograms of the optic nerve head (p = 0.004) were significantly lower in the glaucoma group when compared with the control group. The flow density in the RPC network correlated significantly with all functional and structural parameters tested. The strongest correlation was found between the RPC flow density (inside disc) and the BMO-MRW (Spearman's correlation coefficient = 0.912, p < 0.001). CONCLUSIONS: Glaucoma patients showed a reduced ONH and macular perfusion when compared with healthy controls. The flow density as measured by OCTA correlated with structural damage and visual field loss in glaucoma patients. Non-invasive quantitative analyses of flow density using OCTA provide a new parameter describing a different aspect of glaucoma, which could be useful in clinical practice. PMID- 29332250 TI - The levels of 12 cytokines and growth factors in tears: hyperthyreosis vs euthyreosis. AB - PURPOSE: Simultaneous analyses of the contents and ratios of 12 cytokines and growth factors in single samples of human tears were performed, and the results were compared between a group of healthy subjects and a group of patients with Graves' hyperthyreosis (GH) without thyroid-associated orbitopathy (TAO). METHODS: Determinations and concentration measurements of interleukins (IL-2, IL4, IL-6, IL-8, IL-10, IL-1alpha, and IL-1beta) interferon (IFN-gamma), tumor necrosis factor (TNF-alpha), monocyte chemoattractant protein (MCP-1), vascular endothelial growth factor (VEGF), and epidermal growth factor (EGF) were performed with single tear samples from 21 patients with hyperthyreosis and 22 healthy subjects. The analyses were performed using a Randox microchip with an Evidence Biochip Array Analyzer. RESULTS: We found significant differences between the healthy donor group and the hyperthyreosis group in the levels of IL 6, IL-10, VEGF, IL-1alpha, and MCP-1. The concentration of IL-6 was considerably higher in the hyperthyreosis group, IL-10 was higher in the healthy donor group, and VEGF and MPC-1 were higher in the hyperthyreosis group. The IL-8 and IFN gamma levels were higher in the hyperthyreosis group. The ratios of all of the cytokines to anti-inflammatory IL-10 were significantly elevated in the hyperthyreosis group. CONCLUSION: There are clear differences in the levels of cytokines and growth factors in the tears of healthy subjects and patients with GH without TAO. Tear cytokine changes and related dysfunctional tear syndrome (DTS) could be an early sign of occult TAO in Graves' hyperthyreosis patients. PMID- 29332251 TI - Clinical Pharmacokinetics and Pharmacodynamics of Telavancin Compared with the Other Glycopeptides. AB - Telavancin was discovered by modifying the chemical structure of vancomycin and belongs to the group of lipoglycopeptides. It employs its antimicrobial potential through two distinct mechanisms of action: inhibition of bacterial cell wall synthesis and induction of bacterial membrane depolarization and permeabilization. In this article we review the clinically relevant pharmacokinetic and pharmacodynamic data of telavancin. For comparison, the pharmacokinetic and pharmacodynamic data of the other glycopeptides are presented. Although, in contrast to the newer lipoglycopeptides, telavancin demonstrates a relatively short half-life and rapid total clearance, its apparent volume of distribution (Vd) is almost identical to that of dalbavancin. The accumulation of telavancin after repeated dosing is only marginal, whereas the pharmacokinetic values of the other glycopeptides show much greater differences after administration of multiple doses. Despite its high plasma-protein binding of 90% and relatively low Vd of approximately 11 L, telavancin shows near complete equilibration of the free fraction in plasma with soft tissue. The ratio of the area under the plasma concentration-time curve from time zero to 24 h (AUC24) of unbound plasma concentrations to the minimal inhibitory concentration (MIC) required to inhibit growth of 90% of organisms (MIC90) of Staphylococcus aureus and S. epidermidis of telavancin are sufficiently high to achieve pharmacokinetic/pharmacodynamic targets indicative for optimal bacterial killing. Considering both the AUC24/MIC ratios of telavancin and the near complete equilibration of the free fraction in plasma with soft tissue, telavancin is an appropriate antimicrobial agent to treat soft tissue infections caused by Gram positive pathogens. Although the penetration of telavancin into epithelial lining fluid (ELF) requires further investigations, the AUC24/MIC ratio for S. aureus indicates that bactericidal activity in the ELF could be expected. PMID- 29332253 TI - How to attract talented juniors to urogynaecology. PMID- 29332252 TI - A review of the impact of pregnancy and childbirth on pelvic floor function as assessed by objective measurement techniques. AB - The objective of this narrative review is to study the impact of pregnancy and childbirth on pelvic floor function as assessed by objective measurement techniques with quantitative data carried out during pregnancy and after childbirth. A literature search in MEDLINE and relevant and up-to-date journals from 1960 until April 2017 was performed for articles dealing with the impact of pregnancy and childbirth on pelvic floor function as assessed by objective measurement methods. Only studies describing objective measurement techniques. i.e., urodynamics, ultrasound (US), magnetic resonance imaging (MRI), Pelvic Organ Prolapse Quantification (POP-Q) system, and neurophysiologic tests carried out throughout pregnancy and after childbirth are included. Relevant studies presenting objective quantitative data are analyzed and briefly summarized. The number of studies meeting selection criteria was relatively few. Pregnancy, especially first pregnancy, is associated bladder neck lowering, increased bladder neck mobility, pelvic organ descent, decreased levator ani strength, and decreased urethral resistance. These changes are accentuated after vaginal delivery. Data on the impact of obstetrical and neonatal variables are transient and seem of less importance. Cesarean delivery is not completely protective. In most women, pelvic floor muscle function recovers in the year after delivery. Objective measurement techniques during pregnancy may allow identification of women susceptible to pelvic floor dysfunction later in life and offer the opportunity for counseling and preventive treatment strategies. PMID- 29332255 TI - Profiling attention and cognition enhancing drugs in a rat touchscreen-based continuous performance test. AB - RATIONALE: A novel rodent continuous performance test (CPT) was developed as one of the goals of the NEWMEDS (Novel Methods leading to New Medications in Depression and Schizophrenia) consortium to improve its translatability to the CPT test used in human subjects. OBJECTIVES: The objective of the study is to investigate the effects of attention and cognition enhancing drugs in rodent CPT. METHODS: A single cohort of rats were trained to asymptotic performance in the test. Pharmacological test sessions were then performed twice per week in a full crossover design with the following drugs tested: methylphenidate (0.3, 1, and 3 mg/kg), the alpha4beta2 nicotinic agonist ABT-594 (0.0023, 0.007 and 0.023 mg/kg), modafinil (8, 16, and 32 mg/kg), atomoxetine (0.3, 1, and 3 mg/kg), donepezil (0.1, 0.3, and 1 mg/kg), and memantine (1.25, 2.5, and 5 mg/kg). RESULTS: The stimulant-like drugs methylphenidate, ABT-594, and modafinil were found to increase measures of impulsivity and overall responding with generally no positive effects on d', a putative measure of attention, with the exception of ABT-594 which improved d' at the highest dose tested. Atomoxetine and the memory enhancing drugs donepezil and memantine, on the other hand, were found to reduce measures of impulsivity and responding and had either negligible or worsening effects on d'. CONCLUSIONS: Our results suggest rodent CPT can detect changes in impulsivity resulting from drugs known to improve attention in rodents and humans. However, additional work is needed to assess the sensitivity and validity of this assay for assessing effects on attention. PMID- 29332254 TI - Comparison of adjustable continence therapy periurethral balloons and artificial urinary sphincter in female patients with stress urinary incontinence due to intrinsic sphincter deficiency. AB - INTRODUCTION AND HYPOTHESIS: The objective was to compare the outcomes of the ACT(r) device with those of the artificial urinary sphincter (AUS) AMS 800 in the treatment of stress urinary incontinence (SUI) due to sphincter deficiency in women. METHODS: All the women who underwent surgical treatment for SUI due to intrinsic sphincter deficiency from 2007 to 2017 were included in a single-center retrospective study. The primary endpoint was the functional outcome. Perioperative functional parameters of the two groups were compared. RESULTS: Twenty-five patients underwent an ACT(r) implantation and 36 an AUS implantation. Patients in the AUS group were younger (62.9 vs 70.4 years; p = 0.03) with less comorbidity (ASA Score = 3 in 12.1% vs 33.3%; p = 0.005). Operative time and hospital stay were shorter in the ACT(r) group (45.7 vs 206.1 min; p < 0.001; 1.7 vs 7 days; p < 0.001 respectively). There was a higher rate of intraoperative complications in the AUS group (47% vs 8%; p < 0.001) but the rates of postoperative complications were similar between both groups. The ACT(r) was associated with an increased risk of urinary retention (20% vs 2.8%; p = 0.04). Results were in favor of AUS for: decrease in USP stress incontinence subscore ( 7.6 vs -3.2; p < 0.001), number of pads per 24 h (- 4.6 vs -2.3; p = 0.002), PGII scale (PGII = 1: 61.1% vs 12%; p < 0.001), and cure rate (71.4% vs 21.7%; p < 0.001). CONCLUSIONS: In the present series, keeping in mind the significantly different baseline characteristics, AUS implantation was associated with better functional outcomes than the ACT(r) in female patients with SUI due to intrinsic sphincter deficiency, but with a higher intraoperative complications rate, longer operative time, and a longer stay. PMID- 29332256 TI - Dopamine-dependent social information processing in non-human primates. AB - RATIONALE: Dopamine (DA) is a neurotransmitter whose roles have been suggested in various aspects of brain functions. Recent studies in rodents have reported its roles in social function. However, how DA is involved in social information processing in primates has largely remained unclear. OBJECTIVES: We investigated prefrontal cortical (PFC) activities associated with social vs. nonsocial visual stimulus processing. METHODS: Near-infrared spectroscopy (NIRS) was applied to Japanese macaques, along with pharmacological manipulations of DA transmission, while they were gazing at social and nonsocial visual stimuli. RESULTS: Oxygenated (oxy-Hb) and deoxygenated (deoxy-Hb) hemoglobin changes as well as functional connectivity based on such Hb changes within the PFC network which were distinct between social and nonsocial stimuli were observed. Administration of both D1 and D2 receptor antagonists affected the Hb changes associated with social stimuli, whereas D1, but not D2, receptor antagonist affected the Hb changes associated with nonsocial stimuli. CONCLUSIONS: These results suggest that mesocortical DA transmission in the PFC plays significant roles in social information processing, which involves both D1 and D2 receptor activation, in nonhuman primates. However, D1 and D2 receptor signaling in the PFC mediates different aspects of social vs. nonsocial information processing. PMID- 29332259 TI - Nobel Prizes 2017 and their impact for physiology. PMID- 29332257 TI - Kynurenic acid and its derivatives are able to modulate the adhesion and locomotion of brain endothelial cells. AB - The neuroprotective actions of kynurenic acid (KYNA) and its derivatives in several neurodegenerative disorders [characterized by damage to the cerebral endothelium and to the blood-brain barrier (BBB)] are well established. Cell extracellular matrix (ECM) adhesion is supposedly involved in recovery of impaired cerebral endothelium integrity (endothelial repair). The present work aimed to investigate the effects of KYNA and its synthetic derivatives on cellular behaviour (e.g. adhesion and locomotion) and on morphology of the GP8 rat brain endothelial cell line, modeling the BBB endothelium. The effects of KYNA and its derivatives on cell adhesion were measured using an impedance-based technique, the xCELLigence SP system. Holographic microscopy (HolomonitorTM M4) was used to analyse both chemokinetic responses and morphometry. The GP8 cells proved to be a suitable model cell line for investigating cell adhesion and the locomotion modulator effects of kynurenines. KYNA enhanced cell adhesion and spreading, and also decreased the migration/motility of GP8 cells at physiological concentrations (10-9 and 10-7 mol/L). The derivatives containing an amide side-chain at the C2 position (KYNA-A1 and A2) had lower adhesion inducer effects compared to KYNA. All synthetic analogues (except KYNA-A5) had a time dependent inhibitory effect on GP8 cell adhesion at a supraphysiological concentration (10-3 mol/L). The immobilization promoting effect of KYNA and the adhesion inducer activity of its derivatives indicate that these compounds could contribute to maintaining or restoring the protective function of brain endothelium; they also suggest that cell-ECM adhesion and related cell responses (e.g. migration/motility) could be potential new targets of KYNA. PMID- 29332258 TI - Photodynamic antimicrobial chemotherapy (PACT) using toluidine blue inhibits both growth and biofilm formation by Candida krusei. AB - Among non-albicans Candida species, the opportunistic pathogen Candida krusei emerges because of the high mortality related to infections produced by this yeast. The Candida krusei is an opportunistic pathogen presenting an intrinsic resistance to fluconazol. In spite of the reduced number of infections produced by C. krusei, its occurrence is increasing in some groups of patients submitted to the use of fluconazol for prophylaxis. Photodynamic antimicrobial chemotherapy (PACT) is a potential antimicrobial therapy that combines visible light and a nontoxic dye, known as a photosensitizer, producing reactive oxygen species (ROS) that can kill the treated cells. The objective of this study was to investigate the effects of PACT, using toluidine blue, as a photosensitizer on both growth and biofilm formation by Candida krusei. In this work, we studied the effect of the PACT, using TB on both cell growth and biofilm formation by C. krusei. PACT was performed using a light source with output power of 0.068 W and peak wavelength of 630 nm, resulting in a fluence of 20, 30, or 40 J/cm2. In addition, ROS production was determined after PACT. The number of samples used in this study varied from 6 to 8. Statistical differences were evaluated by analysis of variance (ANOVA) and post hoc comparison with Tukey-Kramer test. PACT inhibited both growth and biofilm formation by C. krusei. It was also observed that PACT stimulated ROS production. Comparing to cells not irradiated, irradiation was able to increase ROS production in 11.43, 6.27, and 4.37 times, in the presence of TB 0.01, 0.02, and 0.05 mg/mL, respectively. These results suggest that the inhibition observed in the cell growth after PACT could be related to the ROS production, promoting cellular damage. Taken together, these results demonstrated the ability of PACT reducing both cell growth and biofilm formation by C. krusei. PMID- 29332260 TI - Prostate cancer rates in patients with initially negative elastography-targeted biopsy vs. systematic biopsy. AB - PURPOSE: To assess whether real-time elastography-targeted biopsy (RTE-bx) is superior to the standard systematic transrectal ultrasound (TRUS)-guided biopsy in predicting subsequent prostate cancer (PCa) rates in patients with initially negative biopsy and to specifically reveal differences in the occurrence of high grade (Gleason >= 4 + 3) PCa by comparing both biopsy methods. PATIENTS AND METHODS: Overall, 630 patients had an initially negative prostate biopsy between 2007 and 2015, either RTE targeted (n = 213) or systematically (n = 417). Follow up data, ascertained by a questionnaire, of patients receiving RTE-bx were compared to data of patients receiving systematic biopsy (sbx) using Mann-Whitney U test and Chi-square test. We performed logistic regression analyses to assess any association with PCa or high-grade PCa occurrence. RESULTS: In total, 258 (41%) patients were diagnosed with PCa at repeat biopsy whereof 54 (8.6%) harboured high-grade PCa. PCa occurred in 95 (44.6%) patients with initially negative RTE-bx and in 163 (39.1%) patients with initially negative sbx (p = 0.003). 24 (11.3%) patients receiving RTE-bx and 30 (7.2%) patients receiving sbx were diagnosed with high-grade PCa (p = 0.095). Logistic regression analyses showed that patients with the initial RTE-bx vs. those with the initial sbx neither resulted in a significant higher risk for PCa occurrence (OR 1.35 [CI 0.87-2.1]; p = 0.2) nor for high-grade PCa occurrence (OR 1.52 [CI 0.66-3.35]; p = 0.3). CONCLUSIONS: We found no statistically significant association of prior biopsy method to subsequent PCa or high-grade PCa occurrence. Referring to our analyses, RTE is not superior to sbx in predicting subsequent PCa rates and, therefore, not eligible to decide on repeat biopsy. PMID- 29332261 TI - Is the laser mightier than the sword? A comparative study for the urethrotomy. AB - PURPOSE: The knife is the most common used instrument for endoscopic urethrotomy. Unfortunately, there are high recurrence rates; it is thought that a laser reduces those rates. We compared the two techniques in this retrospective study. MATERIALS AND METHODS: Between 2010 and 2014, 127 patients were operated on with the knife (KG) and for 65 patients, the laser (LG) was used. We scored the complexity of the stricture using the UREThRAL stricture score (USS) and we scored if a treatment was successful. A failure was determined as recurrence, but also starting clean intermittent catheterization was stated as failure. RESULTS: There was no difference in USS between the two groups (KG: 5.7 vs LG: 6.0); the laser was more often used in a patient with a recurrence stricture (25.2 vs 43.1%). No difference was found in postoperative increase in flow-rate (9.5 vs 10.5 ml/sec), the number of complications (all Clavien I and one Clavien III in the KG) or the failure rate (58.3 vs 68.8%). When looked separately at patients treated for primary stricture and for a recurrence (96.7 vs 91.2%), no differences were found. CONCLUSION: There were no significant differences between knife and laser. With costs taken in consideration, we would advise treatment with the knife. Our results also show a high failure rate, especially in the recurrence group. Therefore, in case of recurrence, an open reconstruction should be considered. PMID- 29332263 TI - Creating a Primary Care Workforce: Strategies for Leaders, Clinicians, and Nurses. AB - Many primary care clinics struggle with rapid implementation and systematic expansion of primary care behavioral health (PCBH) services. Often, an uneven course of program development is due to lack of attention to preparing clinic leadership, addressing operational factors, and training primary care providers (PCPs) and nurses. This article offers competency tools for clinic leaders, PCPs, and nurses to use in assessing their status and setting change targets. These tools were developed by researchers working to disseminate evidence-based interventions in primary care clinics that included fully integrated behavioral health consultants and were then used by early adaptors of the PCBH model. By deploying these strategies, both practicing and teaching clinics will take a big step forward in developing the primary care workforce needed for primary care teams, where the behavioral health needs of a patient of any age can be addressed at the time of need. PMID- 29332262 TI - Tumor expression of survivin, p53, cyclin D1, osteopontin and fibronectin in predicting the response to neo-adjuvant chemotherapy in children with advanced malignant peripheral nerve sheath tumor. AB - PURPOSE: Selected cell-cycle regulators and extracellular matrix proteins were found to play roles in malignant peripheral nerve sheath tumor (MPNST) biology. We aimed to analyze whether initial tumor tissue expressions of survivin, p53, cyclin D1, osteopontin (OPN) and fibronectin (FN) correlate with the response to neo-adjuvant CHT (naCHT) in children with advanced inoperable MPNST. METHODS: The study included 26 children with MPNST (M/F 14/12, median age 130 months) treated in Polish centers of pediatric oncology between 1992 and 2013. Tissue expression of markers was studied immunohistochemically in the manually performed tissue microarrays and assessed semi-quantitatively as low and high, based on the rate of positive cells and staining intensity. RESULTS: Good response to naCHT was noted in 47.6%, while poor-in 52.4% of patients. The response to naCHT was influenced negatively by the presence of neurofibromatosis NF1 and high initial tumor tissue expression of OPN, survivin, p53 and cyclin D1. Patients with high tumor expression of either OPN, survivin or p53 and those with simultaneous high expression of >= 3 of the markers, responded significantly worse to naCHT, than patients, in whom expression of <= 2 markers were detected at diagnosis. Nearly, 85% of patients expressing >= 3 markers, responded poor to CHT; while 87.5% of children, expressing <= 2 markers, were good responders. CONCLUSION: The initial tumor tissue expression of OPN, survivin, p53 and cyclin D1 may serve as markers to predict response to naCHT in pediatric advanced MPNST. Future studies in more numerous group of patients are needed to confirm these preliminary results. PMID- 29332264 TI - The Role of Affect and Coping in Diabetes Self-Management in Rural Adults with Uncontrolled Diabetes and Depressive Symptoms. AB - Many patients with diabetes have poorly controlled blood sugar levels and remain at risk for serious diabetes complications, despite access to effective diabetes treatments and services. Using the transactional model of stress and coping framework, the study investigated the contributions of affect (Positive and Negative Affect Schedule) and coping (maladaptive and adaptive coping from the Brief Cope) on diabetes self-management behaviors, namely diet and exercise. One hundred seventy-eight rural adults with uncontrolled diabetes and moderate depressive symptoms completed the measures. Multiple regression analyses demonstrated that positive affect and negative affect were significantly associated with diet and exercise, even after adjusting for diabetes severity, illness intrusiveness, and diabetes knowledge. However, two path analyses clarified that adaptive coping mediated the relationships between affect (positive and negative) and self-management behaviors (diet and exercise). Comprehensive diabetes treatments that include self-management support can assist patients in recognition and use of adaptive emotion-focused coping skills. PMID- 29332266 TI - Association Between the Interferon Gamma 874 T/A Polymorphism and the Severity of Valvular Damage in Patients with Rheumatic Heart Disease. AB - Interferon gamma (IFN-gamma) is a multifunctional cytokine that plays an important role in modulating almost all phases of the immune response and may be responsible for the increased valvular fibrosis and calcification in the pathogenesis of rheumatic heart disease (RHD). The aim of this study was to investigate the possible relationship between the IFN-gamma +874 T/A polymorphism and the severity of valvular damage in the Turkish population. The IFN-gamma genotypes were determined in 152 RHD patients and 151 healthy controls by ARMS PCR. Differences in genotype distribution between patients with RHD and control were evaluated by the chi2 test. All statistical analyses were performed with SPSS 15.0 Software program. Frequency of the AA genotype was found to be significantly lower and the TT genotype significantly higher in the RHD group compared to controls (p = 0.002 and p = 0.018, respectively). The TT genotype was found to be significantly higher (26.8% vs. 9.1%, p = 0.009) and the AA genotype significantly lower (29.1% vs. 8.2%, p = 0.001) in the severe valvular disease (SVD) group compared to mild valvular disease group. In the SVD group, 79 patients had mitral balloon valvotomy and/or mitral valve replacement and had significantly higher TT genotype compared to patients with medical follow-up (30.4% vs. 19%, p = 0.001). The data demonstrated that TT genotype is associated with both RHD and the severity of RHD. PMID- 29332267 TI - IFN-lambda: A new spotlight in innate immunity against influenza virus infection. PMID- 29332265 TI - Review of a Parent's Influence on Pediatric Procedural Distress and Recovery. AB - Understanding how parents influence their child's medical procedures can inform future work to reduce pediatric procedural distress and improve recovery outcomes. Following a pediatric injury or illness diagnosis, the associated medical procedures can be potentially traumatic events that are often painful and distressing and can lead to the child experiencing long-term physical and psychological problems. Children under 6 years old are particularly at risk of illness or injury, yet their pain-related distress during medical procedures is often difficult to manage because of their young developmental level. Parents can also experience ongoing psychological distress following a child's injury or illness diagnosis. The parent and parenting behavior is one of many risk factors for increased pediatric procedural distress. The impact of parents on pediatric procedural distress is an important yet not well-understood phenomenon. There is some evidence to indicate parents influence their child through their own psychological distress and through parenting behavior. This paper has three purposes: (1) review current empirical research on parent-related risk factors for distressing pediatric medical procedures, and longer-term recovery outcomes; (2) consider and develop existing theories to present a new model for understanding the parent-child distress relationship during medical procedures; and (3) review and make recommendations regarding current assessment tools and developing parenting behavior interventions for reducing pediatric procedural distress. PMID- 29332268 TI - Methylmercury Intoxication Promotes Metallothionein Response and Cell Damage in Salivary Glands of Rats. AB - Environmental and occupational mercury exposure is considered a major public health issue. Despite being well known that MeHg exposure causes adverse effects in several physiologic functions, MeHg effects on salivary glands still not completely elucidated. Here, we investigated the cellular MeHg-induced damage in the three major salivary glands (parotid, submandibular, and sublingual) of adult rats after chronic, systemic and low doses of MeHg exposure. Rats were exposed by 0.04 mg/kg/day over 60 days. After that, animals were euthanized and all three glands were collected. We evaluated total Hg accumulation, metallothionein I/II (MT I/II), alpha-smooth muscle actin (alpha-SMA), and cytokeratin 18 (CK18) immune expression. Our results have showed that MeHg is able to disrupt gland tissue and to induce a protective mechanism by MT I/II expression. We also showed that cell MT production is not enough to protect gland tissue against cellular structural damage seen by reducing marking of cytoskeletal proteins as CK18 and alpha-SMA. Our data suggest that chronic MeHg exposure in low-daily doses is able to induce cellular damage in rat salivary glands. PMID- 29332270 TI - Correction to: Hyper-response to Novelty Increases c-Fos Expression in the Hippocampus and Prefrontal Cortex in a Rat Model of Schizophrenia. AB - The original version of this article unfortunately contained a mistake. The spelling of the author Tommaso Ianniti was incorrect and has been corrected as Tommaso Iannitti. The original article has been corrected. PMID- 29332269 TI - Behavioral, Biochemical and Molecular Characterization of a Parkinson's Disease Mouse Model Using the Neurotoxin 2'-CH3-MPTP: A Novel Approach. AB - The neurotoxin MPTP has long been used to create a mouse model of Parkinson's disease (PD). Indeed, several MPTP analogues have been developed, including 2' CH3-MPTP, which was shown to induce nigrostriatal DA neuronal depletion more potently than MPTP. However, no study on behavioral and molecular alterations in response to 2'-CH3-MPTP has been carried out so far. In the present work, 2'-CH3 MPTP was administered to mice (2.5, 5.0 and 10 mg/kg per injection, once a day, 5 days) and histological, biochemical, molecular and behavioral alterations were evaluated. We show that, despite a dose-dependent-like pattern observed for nigrostriatal dopaminergic neuronal death and dopamine depletion, dose-specific alterations in dopamine metabolism and in the expression of dopaminergic neurotransmission-associated genes could be related to specific motor deficits elicited by the different doses tested. Interestingly, 2'-CH3-MPTP leads to increased DAT and MAO-B transcription, which could explain, respectively, its higher potency and the requirement of higher doses of MAO inhibitors to prevent nigrostriatal neuronal death when compared to MPTP. Also, perturbations in dopamine metabolism as well as possible alterations in dopamine bioavailability in the synaptic cleft were also identified and correlated with strength and ambulation deficits in response to specific doses. Overall, the present work brings new evidence supporting the distinct effects of 2'-CH3-MPTP when compared to its analogue MPTP. Moreover, our data highlight the utmost importance of a precise experimental design, as different administration regimens and doses yield different biochemical, molecular and behavioral alterations, which can be explored to study specific aspects of PD. PMID- 29332271 TI - Biodegradation of plastics: current scenario and future prospects for environmental safety. AB - Plastic is a general term used for a wide range of high molecular weight organic polymers obtained mostly from the various hydrocarbon and petroleum derivatives. There is an ever-increasing trend towards the production and consumption of plastics due to their extensive industrial and domestic applications. However, a wide spectrum of these polymers is non-biodegradable with few exceptions. The extensive use of plastics, lack of waste management, and casual community behavior towards their proper disposal pose a significant threat to the environment. This has raised growing concerns among various stakeholders to devise policies and innovative strategies for plastic waste management, use of biodegradable polymers especially in packaging, and educating people for their proper disposal. Current polymer degradation strategies rely on chemical, thermal, photo, and biological procedures. In the presence of proper waste management strategies coupled with industrially controlled biodegradation facilities, the use of biodegradable plastics for some applications such as packaging or health industry is a promising and attractive option for economic, environmental, and health benefits. This review highlights the classification of plastics with special emphasis on biodegradable plastics and their rational use, the identified mechanisms of plastic biodegradation, the microorganisms involved in biodegradation, and the current insights into the research on biodegradable plastics. The review has also identified the research gaps in plastic biodegradation followed by future research directions. PMID- 29332272 TI - Comparative study of selenium and selenium nanoparticles with reference to acute toxicity, biochemical attributes, and histopathological response in fish. AB - Recent studies have demonstrated that selenium (Se) and selenium nanoparticles (Se-NPs) exhibited toxicity at a higher concentration. The lethal concentration of Se and Se-NPs was estimated as 5.29 and 3.97 mg/L at 96 h in Pangasius hypophthalmus. However, the effect of different definite concentration of Se (4.5, 5.0, 5.5, and 6.0 mg/L) and Se-NPs (2.5, 3.0, 3.5, and 4.0 mg/L) was decided for acute experiment. Selenium and Se-NPs alter the biochemical attributes such as anti-oxidative status [catalase (CAT), superoxide dismutase (SOD), and glutathione-S-transferase (GST) activities], neurotransmitter enzyme, cellular metabolic enzymes, stress marker, and histopathology of P. hypophthalmus in a dose- and time-dependent manner. CAT, SOD, and GST were significantly elevated (p < 0.01) when exposed to Se and Se-NPs, and similarly, a neurotransmitter enzyme (acetylcholine esterase (AChE)) was significantly inhibited in a time- and dose-dependent manner. Further, aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, and malate hydrogenase were noticeably (p < 0.01) affected by Se and Se-NPs from higher concentration to lower concentration. Stress markers such as cortisol and HSP 70 were drastically enhanced by exposure to Se and Se-NPs. All the cellular metabolic and stress marker parameters were elevated which might be due to hyperaccumulation of Se and Se-NPs in the vital organ and target tissues. The histopathology of liver and gill was also altered such as large vacuole, cloudy swelling, focal necrosis, interstitial edema, necrosis in liver, and thickening of primary lamellae epithelium and curling of secondary lamellae due to Se and Se NP exposure. The study suggested that essential trace element in both forms (inorganic and nano) at higher concentration in acute exposure of Se and Se-NPs led to pronounced deleterious alteration on histopathology and cellular and metabolic activities of P. hypophthalmus. PMID- 29332273 TI - Pollution and ecological risk assessment of nutrients associated with deposited sediments collected from roof and road surfaces. AB - Surface-deposited sediment in urban areas is an essential environmental medium for assessing nutrient contamination. The total nitrogen (TN) and total phosphorus (TP) pollution associated with surface-deposited sediments can be transported into urban water bodies by runoff and can cause eutrophication of those water bodies. By analyzing the samples collected on roof surfaces and road surfaces, this study provides a comparison of the differences in TN and TP pollution loading in sediments on these two different impervious surface materials. Also, an assessment of the ecological risk of nutrients in surface deposited sediments with respect to grain size fraction was performed. The results indicate that the TN and TP pollution loading in both road-deposited sediments and roof-deposited sediments indicated an asymmetric "W" trend along with grain size fraction, and both road-deposited sediments and roof-deposited sediments had the highest TN and TP pollution contribution when the particle size is between 250 and 500 MUm. TN in roof-deposited sediments has high ecological risk when the particle size is less than 250 MUm. These findings help to provide guidance for the management of surface-deposited sediment pollution. PMID- 29332275 TI - Impact of drought stress induced by polyethylene glycol on growth, water relations and cell viability of Norway spruce seedlings. AB - We investigated physiological responses of 7-week-old Norway spruce seedlings to water deficits of different intensities. Hydroponically grown seedlings were subjected to mild (-0.15 MPa), strong (-0.5 and -1.0 MPa) and extreme (-1.5 MPa) water deficit induced by polyethylene glycol 6000, and their growth parameters, water status and physiological activity were analyzed. Seedlings effectively restricted water loss under drought, and even under extreme water deficit, shoot relative water content did not fall below 85%. Water stress induced substantial decreases in the osmotic potentials of root and needle cell sap, up to 0.3-0.4 MPa under extreme water deficit, though this did not result from water loss or accumulation of K+ and Na+ ions. Seedling growth was very susceptible to water stress because of poor capacity for cell wall adjustment. Water stress injured seedling roots, as evidenced by the loss of root cell physiological activity estimated by the ability to hydrolyse fluorescein diacetate and by increased root calcium content up to 8-10-fold under extreme water stress. At the same time, root hair growth was enhanced, especially under mild water deficit, which increased the root water-absorbing capacity. In summary, seedlings of Norway spruce were characterized by high susceptibility to water stress and concurrently by pronounced ability to maintain water status. These characteristics are fully consistent with spruce confinement to moist habitats. PMID- 29332274 TI - Callitriche cophocarpa (water starwort) proteome under chromate stress: evidence for induction of a quinone reductase. AB - Chromate-induced physiological stress in a water-submerged macrophyte Callitriche cophocarpa Sendtn. (water starwort) was tested at the proteomic level. The oxidative stress status of the plant treated with 1 mM Cr(VI) for 3 days revealed stimulation of peroxidases whereas catalase and superoxide dismutase activities were similar to the control levels. Employing two-dimensional electrophoresis, comparative proteomics enabled to detect five differentiating proteins subjected to identification with mass spectrometry followed by an NCBI database search. Cr(VI) incubation led to induction of light harvesting chlorophyll a/b binding protein with a concomitant decrease of accumulation of ribulose bisphosphate carboxylase (RuBisCO). The main finding was, however, the identification of an NAD(P)H-dependent dehydrogenase FQR1, detectable only in Cr(VI)-treated plants. The FQR1 flavoenzyme is known to be responsive to oxidative stress and to act as a detoxification protein by protecting the cells against oxidative damage. It exhibits the in vitro quinone reductase activity and is capable of catalyzing two electron transfer from NAD(P)H to several substrates, presumably including Cr(VI). The enhanced accumulation of FQR1 was chromate-specific since other stressful conditions, such as salt, temperature, and oxidative stresses, all failed to induce the protein. Zymographic analysis of chromate-treated Callitriche shoots showed a novel enzymatic protein band whose activity was attributed to the newly identified enzyme. We suggest that Cr(VI) phytoremediation with C. cophocarpa can be promoted by chromate reductase activity produced by the induced quinone oxidoreductase which might take part in Cr(VI) -> Cr(III) bioreduction process and thus enable the plant to cope with the chromate-generated oxidative stress. PMID- 29332276 TI - Variability and reliability of POP concentrations in multiple breast milk samples collected from the same mothers. AB - Risk assessment of infant using a realistic persistent organic pollutant (POP) exposure through breast milk is essential to devise future regulation of POPs. However, recent investigations have demonstrated that POP levels in breast milk collected from the same mother showed a wide range of variation daily and monthly. To estimate the appropriate sample size of breast milk from the same mother to obtain reliable POP concentrations, breast milk samples were collected from five mothers living in Japan from 2006 to 2012. Milk samples from each mother were collected 3 to 6 times a day through 3 to 7 days consecutively. Food samples as the duplicated method were collected from two mothers during the period of breast milk sample collection. Those were employed for POP (PCBs, DDTs, chlordanes, and HCB) analysis. PCB concentrations detected in breast milk samples showed a wide range of variation which was maximum 63 and 60% of relative standard deviation (RSD) in lipid and wet weight basis, respectively. The time course trend of those variations among the mothers did not show any typical pattern. A larger amount of PCB intake through food seemed to affect 10 h after those concentrations in breast milk in lipid weight basis. Intraclass correlation coefficient (ICC) analyses indicated that the appropriate sample size for good reproducibility of POP concentrations in breast milk required at least two samples for lipid and wet weight basis. PMID- 29332277 TI - Efficient degradation of triclosan by an endophytic fungus Penicillium oxalicum B4. AB - Triclosan (TCS), a widely used antimicrobial and preservative agent, is an emerging contaminant in aqueous and soil environment. Microbial degradation of TCS has not been reported frequently because of its inhibition of microbe growth. To explore the new microbial resources for TCS biodegradation, fungal endophytes were isolated and screened for the degradation potential. The endophytic strain B4 isolated from Artemisia annua L. showed higher degradation efficiency and was identified as Penicillium oxalicum based on its morphology and ITS sequences of ribosomal DNA. In both medium and synthetic wastewater, TCS (5 mg/L) was almost completely degraded within 2 h by the strain B4. The high capacity of TCS uptake (127.60 +/- 8.57 mg/g dry weight, DW) of fungal mycelium was observed during the first 10 min after TCS addition. B4 rapidly reduced initial content (5.00 mg/L) of TCS to 0.41 mg/L in medium in 10 min. Then, the accumulation of TCS in mycelium was degraded from 0.45 to 0.05 mg/g DW after 1-h treatment. The degradation metabolites including 2-chlorohydroquinone, 2, 4-dichloropheno, and hydroquinone were found to be restrained in mycelia. The end products of the biodegradation in medium showed no toxicity to Escherichia coli. The new characteristics of high adsorption, fast degradation, and low residual toxicity highlight the potential of endophytic P. oxalicum B4 in TCS bioremediation. PMID- 29332278 TI - Exposure to nanoscale and microscale particulate air pollution prior to mining development near a northern indigenous community in Quebec, Canada. AB - This study serves as a baseline characterization of indoor and outdoor air quality in a remote northern indigenous community prior to the start of a major nearby mining operation, including measurements of nanoparticles, which has never been performed in this context before. We performed aerosol sample collection and real-time aerosol measurements at six different locations at the Cree First Nation of Waswanipi and the Montviel campsite, located 45 km west of the Cree First Nation of Waswanipi, in the south of the Nord-du-Quebec region. High concentrations of airborne nanoparticles (up to 3.98 * 104 +/- 8.9 * 103 cm-3 at 64.9-nm midpoint particle diameter) and fine particles (up to 1.99 * 103 +/- 1.6 * 102 cm-3 at 0.3-MUm midpoint particle diameter) were measured inside a residential home, where we did not find any ventilation or air filtration systems. The most abundant particle sizes by mass were between 0.19 and 0.55 MUm. The maximum concentration of analyzed heavy metals was detected at the d50 cut off particle size of 0.31 MUm; and the most abundant heavy metals in the aerosol samples were Al, Ba, Zn, Cu, Hg, and Pb. We concluded that the sources of the relatively high indoor particle concentrations were likely laundry machines and cooking emissions in the absence of a sufficient ventilation system. However, the chemical composition of particles resulting from mining activities is expected to be different from that of the aerosol particles from indoor sources. Installation and proper maintenance of sufficient ventilation and air filtration systems may reduce the total burden of disease from outdoor and indoor air pollution and remediate infiltrated indoor particulate pollution from the mining sources as well. PMID- 29332279 TI - Ecotoxicity thresholds for ametryn, diuron, hexazinone and simazine in fresh and marine waters. AB - Triazine and urea herbicides are two groups of photosystem II inhibiting herbicides frequently detected in surface, ground and marine waters. Yet, there are few water quality guidelines for herbicides. Ecotoxicity thresholds (ETs) for ametryn, hexazinone and simazine (triazine herbicides) and diuron (a urea herbicide) were calculated using the Australian and New Zealand method for deriving guideline values to protect fresh and marine ecosystems. Four ETs were derived for each chemical and ecosystem that should theoretically protect 99, 95, 90 and 80% of species (i.e. PC99, PC95, PC90 and PC80, respectively). For all four herbicides, the phototrophic species were significantly more sensitive than non-phototrophic species, and therefore, only the former data were used to calculate the ETs. Comparison of the ET values to measured concentrations in 2606 samples from 15 waterways that discharge to the Great Barrier Reef (2011-2015) found three exceedances of the simazine PC99, regular exceedances (up to 30%) of the PC99 in a limited number of rivers for ametryn and hexazinone and frequent (> 40%) exceedances of the PC99 and PC95 ETs in at least four waterways for diuron. There were no exceedances of the marine ETs in inshore reef areas. Further, ecotoxicity data are required for ametryn and hexazinone to fresh and marine phototrophic species, for simazine to marine phototrophic species, for tropical phototrophic species, repeated pulse exposures and long-term (2 to 12 months) exposures to environmentally relevant concentrations. PMID- 29332280 TI - Hydrogeochemical processes and influence of seawater intrusion in coastal aquifers south of Chennai, Tamil Nadu, India. AB - Seawater intrusion promotes the salinity of groundwater, and it poses a great environmental impact on a global scale. The present study was carried out to determine the hydrogeochemical processes and influence of seawater intrusion in the coastal aquifers using geophysical, geochemical, and stable isotope techniques. The true resistivity value ranges from 0.5 to 8008.5 Omega-m which has been measured using vertical electrical sounding (VES) based on the Schlumberger method. About 33 groundwater samples were collected during post monsoon (POM) (January 2012) and pre-monsoon (PRM) (June 2012) seasons from open and bore wells and were analyzed for major ions and stable isotopes. EC, Na+, and Cl- were high in groundwater of wells near salt pan, the Buckingham Canal, and backwater regions. Around 45% of the groundwater of this study area is of Na+-Cl- type due to salinisation. Reverse ion exchange and silicate weathering are the dominant processes controlling the geochemistry of groundwater. Saturation indexes (SI) of halite (SIhalite) and gypsum (SIgypsum) versus sulfate show an increasing trend line from > 0 to < 0, which implies higher dissolution of minerals and hints increasing salinization during both seasons. The value of Na+/Cl- ranges between 0.7 and 2.4 (POM) and from 0.6 to 2.8 (PRM). The molar ratio suggested that around 25% of the groundwater samples are with values similar to those of seawater. Further, the groundwater is also affected by saline backwater, salt pan activities, and Buckingham Canal. Some locations are also are affected by anthropogenic, agricultural activities and geochemical processes. Heavy stable isotopes were found to be dominant in the coastal region due to seawater intrusion. Stable isotopes of delta18O range from - 5.6 to - 2.90/00 during both periods. About 201 km2 of this area is affected by salinization. It is necessary to reduce pumping and plan for physical barriers to create freshwater ridges for controling the seawater intrusion. PMID- 29332281 TI - Programmed Cell Death in Plants: An Overview. AB - Programmed cell death (PCD) is a controlled mechanism that eliminates specific cells under developmental or environmental stimuli. All organisms-from bacteria to multicellular eukaryotes-have the ability to induce PCD in selected cells. Although this process was first identified in plants, the interest in deciphering the signaling pathways leading to PCD strongly increased when evidence came to light that PCD may be involved in several human diseases. In plants, PCD activation ensures the correct occurrence of growth and developmental processes, among which embryogenesis and differentiation of tracheary elements. PCD is also part of the defense responses activated by plants against environmental stresses, both abiotic and biotic.This chapter gives an overview of the roles of PCD in plants as well as the problems arising in classifying different kinds of PCD according to defined biochemical and cellular markers, and in comparison with the various types of PCD occurring in mammal cells. The importance of understanding PCD signaling pathways, with their elicitors and effectors, in order to improve plant productivity and resistance to environmental stresses is also taken into consideration. PMID- 29332282 TI - Investigation of Morphological Features of Autophagy During Plant Programmed Cell Death. AB - The investigation of autophagy particularly when observed during programmed cell death (PCD) is strongly based on the morphological features recorded with transmission electron microscope (TEM). Here we describe methods to induce and to inhibit autophagy in plants. Also some tips for obtaining better preservation of biological membranes, crucial for the investigation of autophagy, are provided together with information about plant autophagic mutants, use of antibodies and methods for 3D reconstruction of large membrane-bound objects that are commonly formed during autophagic processes leading to PCD in plants. PMID- 29332283 TI - Markers of Developmentally Regulated Programmed Cell Death and Their Analysis in Cereal Seeds. AB - Programmed cell death (PCD) is a key process for the development and differentiation of multicellular organisms, which is characterized by well defined morphological and biochemical features. These include chromatin condensation, DNA degradation and nuclear fragmentation, with nucleases and proteases playing a relevant function in these processes. In this chapter we describe methods routinely used for the analysis of hallmarks of developmentally regulated PCD in cereal seed tissues, which are based on agarose and polyacrylamide gel electrophoresis, in situ staining of DNA fragmentation, and cell-free assays of relevant enzymatic activities. PMID- 29332284 TI - Measurement of Hypersensitive Cell Death Triggered by Avirulent Bacterial Pathogens in Arabidopsis. AB - The hypersensitive response is one of the most powerful and complex defense reactions to survive to pathogen attacks during an incompatible plant-pathogen interaction. Local programmed cell death accompanies the hypersensitive response at the site of infection to prevent pathogen growth and spread. A precise quantitative assessment of this form of programmed cell death is essential to unravel the genetic and molecular mechanisms underlying the process. Here, we first describe the optimization of a Trypan Blue staining protocol for quantitatively measuring the HR-cell death in Arabidopsis. Furthermore, we provide an electrolyte leakage protocol based on pathogen vacuum infiltration, which allows its simultaneous application to a large number of plants as well as to Arabidopsis mutants affected by small size phenotype. PMID- 29332285 TI - Immunity-Associated Programmed Cell Death as a Tool for the Identification of Genes Essential for Plant Innate Immunity. AB - Plants have evolved a sophisticated innate immune system to contend with potential infection by various pathogens. Understanding and manipulation of key molecular mechanisms that plants use to defend against various pathogens are critical for developing novel strategies in plant disease control. In plants, resistance to attempted pathogen infection is often associated with hypersensitive response (HR), a form of rapid programmed cell death (PCD) at the site of attempted pathogen invasion. In this chapter, we describe a method for rapid identification of genes that are essential for plant innate immunity. It combines virus-induced gene silencing (VIGS), a tool that is suitable for studying gene function in high-throughput, with the utilization of immunity associated PCD, particularly HR-linked PCD as the readout of changes in plant innate immunity. The chapter covers from the design of gene fragment for VIGS, the agroinfiltration of the Nicotiana benthamian plants, to the use of immunity associated PCD induced by twelve elicitors as the indicator of activation of plant immunity. PMID- 29332286 TI - Analysis of Mitochondrial Markers of Programmed Cell Death. AB - Mitochondria play a crucial role in programmed cell death (PCD) in plants. In most cases of mitochondria-dependent PCD, cytochrome c (Cyt c) released from mitochondria due to the opening of mitochondrial permeability transition pore (MPTP) and the activation of caspase-like proteases. Here we describe the analytic methods of mitochondrial markers of PCD including mitochondria isolation, mitochondrial membrane permeability, mitochondrial inner membrane potential, Cytc release, ATP, and mitochondrial reactive oxygen species (ROS). PMID- 29332287 TI - Studying Retrograde Signaling in Plants. AB - Cellular homeostasis requires precise communication between various types of organelles. In particular, the communication between nucleus and semiautonomous organelles, mitochondria and chloroplasts, has received widespread attention. Communication from nucleus to other organelles is known as anterograde signaling, whereas communication from mitochondria or chloroplasts to the nucleus is known as retrograde signaling. Here we discuss methods used to study retrograde signaling in Arabidopsis thaliana. These methods may also be modified to study retrograde signaling in other plant species. PMID- 29332288 TI - ROS and Cell Death in Tomato Roots Infected by Meloidogyne Incognita. AB - Phytoparasitic nematodes are plant pests causing serious problems to a broad range of hosts, and Meloidogyne species are widely recognized as the most damaging among the root knot nematode groups. During the incompatible interaction between avirulent pathogens and resistant tomato cultivars, juvenile nematode invasions provoke a defense cascade, culminating in hypersensitive responses. Methods to detect the key molecules involved in oxidative metabolism of the infected tomato roots are described here. PMID- 29332289 TI - Detection of Reactive Oxygen and Nitrogen Species (ROS/RNS) During Hypersensitive Cell Death. AB - Reactive oxygen and nitrogen species (ROS/RNS) are signaling molecules involved in a plethora of physiological processes in plants. Especially, ROS and nitric oxide (NO) are key players that are required for programmed cell death (PCD). The PCD associated with the hypersensitive response (HR) has been well characterized and the role of H2O2 and NO as key signaling molecules inducing HR has been established. Localization of ROS and NO production in plant tissues in response to pathogens can be imaged by confocal laser microscopy by using specific fluorescent probes. Deciphering the time and spatial regulation of ROS and NO is very important to establish the cellular response of plants to adverse conditions. This chapter is mainly focused on the imaging of ROS and RNS accumulation in vivo in plant tissues undergoing PCD. PMID- 29332291 TI - Analysis of Reactive Carbonyl Species Generated Under Oxidative Stress. AB - Oxidation of membrane lipids by reactive oxygen species primarily generates lipid peroxides, from which various carbonyls, i.e., aldehydes and ketones, are formed. Among them, those with a carbonyl-conjugated C-C double bond have significant biological functions and are designated as reactive carbonyl species (RCS). A dozen kinds of RCS occurring in plant cells have a broad spectrum of reactivity and biological effects, depending on the structure. Several RCS have been recently found to activate caspase-like proteases in plants, thereby initiating PCD. Comprehensive and quantitative RCS analysis method using conventional HPLC is illustrated. PMID- 29332290 TI - DNA Diffusion Assay Applied to Plant Cells. AB - DNA diffusion assay is a simple, sensitive and reliable technique which allows the assessment of programmed cell death (PCD) or necrosis events based on nuclear morphology. It consists in isolating nuclei from plant material, which are then embedded in agarose and subjected to lysis in alkaline buffers. Under these conditions, and due to the presence of abundant alkali-labile sites in the DNA, small pieces of DNA diffuse in the agarose gel giving a specific halo appearance when stained with fluorescent dyes like DAPI (4',6-diamidino-2-phenylindole). Here, we describe an optimized protocol for DNA diffusion assay applied to different types of plant cells/tissues, indicating all the critical steps required for a successful experimental procedure. PMID- 29332292 TI - In Vivo Analysis of Calcium Levels and Glutathione Redox Status in Arabidopsis Epidermal Leaf Cells Infected with the Hypersensitive Response-Inducing Bacteria Pseudomonas syringae pv. tomato AvrB (PstAvrB). AB - Plants react to the attack of pathogen microorganisms by mounting appropriate and efficient downstream defense responses often involving a form of localized cell death called hypersensitive response (HR).Here we describe an innovative and noninvasive protocol based on in vivo bioimaging technique coupled with utilization of genetically encoded fluorescent sensors that allows to monitor and analyze intracellular calcium (Ca2+) dynamics and changes of the glutathione redox status taking place in plant organs during plant interaction with the HR inducing bacteria Pseudomonas syringae (PstAvrB). PMID- 29332293 TI - Measurement of Cyclic GMP During Plant Hypersensitive Disease Resistance Response. AB - Cyclic guanosine-3',5'-monophosphate (cGMP) is recognized as an important second messenger in plants, mediating intracellular signal in important physiological processes, including the hypersensitive disease resistance response induced by avirulent pathogens. In this context, the analysis of cGMP levels in infected plants requires an accurate and specific detection method allowing its quantification. Here, we describe an assay based on the Alphascreen technology, developed for animal cells and further adapted and optimized for the detection of cGMP in plants. The method is applied for the measurement of cGMP in Arabidopsis thaliana plants challenged with an avirulent strain of Pseudomonas syringae pv. tomato. This protocol includes the extraction of cGMP, the assay procedure and the calculation of cGMP concentration. PMID- 29332294 TI - Detection of MAPK3/6 Phosphorylation During Hypersensitive Response (HR) Associated Programmed Cell Death in Plants. AB - Programmed cell death (PCD) is an essential component of development, biotic and abiotic responses. Hypersensitive response (HR)-associated cell death activated under pathogen attack is one of the most dramatic manifestations of PCD in plants. Signal transduction through mitogen-activated protein kinase (MAPK) cascades, a very conserved signaling pathway across eukaryotes, is a core mediator for HR-associated PCD. Therefore, monitoring MAPK activation enables the mechanisms underlying HR-associated PCD to be elucidated. Here, we describe the use of a phosphorylation-specific MAPK3/6 antibody to monitor the activation of MAPK3/6 during HR-associated PCD. The technique may be adapted for use in other types of PCD. PMID- 29332295 TI - Measurement of the Caspase-1-Like Activity of Vacuolar Processing Enzyme in Plants. AB - Caspase-like activities are essential to regulate programed cell death in plants. Although no caspase orthologous enzymes with aspartic acid specificity have been identified in plants, vacuolar processing enzyme (VPE) exhibits a caspase-1-like activity. In this chapter, we introduce two methods for the measurement of the caspase-1-like/VPE activity. These methods are based on the cleavage of caspase-1 specific synthetic substrates and on monitoring the active forms of VPE using a biotinylated-inhibitor blot analysis. Both methods are also adaptable to other plant caspase-like activities. PMID- 29332296 TI - Plant Cell Cultures as Model Systems to Study Programmed Cell Death. AB - The study of programmed cell death (PCD) activated in a certain group of cells is complex when analyzed in the whole plant. Plant cell suspension cultures are useful when investigating PCD triggered by environmental and developmental stimuli. Due to their homogeneity and the possibility to synchronize their responses induced by external stimuli, these cultures are used for studying the signaling pathways leading to PCD. The first problem in the analysis of PCD in cell cultures is the quantification of cell viability/death over time. Cultured cells from different plant species may have specific mitotic patterns leading to calli or cell chains mixed to single cell suspensions. For this reason, not all cell cultures allow morphological parameters to be investigated using microscopy analysis, and adapted or ad hoc methods are needed to test cell viability.Here we report on some accurate methods to establish and propagate cell cultures from different plant species, including crops, as well as to determine cell viability and PCD morphological and genetic markers. In particular, we describe a protocol for extracting nucleic acids required for real-time PCR analysis which has been optimized for those cell cultures that do not allow the use of commercial kits. PMID- 29332297 TI - Integrodifference equations in the presence of climate change: persistence criterion, travelling waves and inside dynamics. AB - To understand the effects that the climate change has on the evolution of species as well as the genetic consequences, we analyze an integrodifference equation (IDE) models for a reproducing and dispersing population in a spatio-temporal heterogeneous environment described by a shifting climate envelope. Our analysis on the IDE focuses on the persistence criterion, travelling wave solutions, and the inside dynamics. First, the persistence criterion, characterizing the global dynamics of the IDE, is established in terms of the basic reproduction number. In the case of persistence, a unique travelling wave is found to govern the global dynamics. The effects of the size and the shifting speed of the climate envelope on the basic reproduction number, and hence, on the persistence criterion, are also investigated. In particular, the critical domain size and the critical shifting speed are found in certain cases. Numerical simulations are performed to complement the theoretical results. In the case of persistence, we separate the travelling wave and general solutions into spatially distinct neutral fractions to study the inside dynamics. It is shown that each neutral genetic fraction rearranges itself spatially so as to asymptotically achieve the profile of the travelling wave. To measure the genetic diversity of the population density we calculate the Shannon diversity index and related indices, and use these to illustrate how diversity changes with underlying parameters. PMID- 29332298 TI - The ESS and replicator equation in matrix games under time constraints. AB - Recently, we introduced the class of matrix games under time constraints and characterized the concept of (monomorphic) evolutionarily stable strategy (ESS) in them. We are now interested in how the ESS is related to the existence and stability of equilibria for polymorphic populations. We point out that, although the ESS may no longer be a polymorphic equilibrium, there is a connection between them. Specifically, the polymorphic state at which the average strategy of the active individuals in the population is equal to the ESS is an equilibrium of the polymorphic model. Moreover, in the case when there are only two pure strategies, a polymorphic equilibrium is locally asymptotically stable under the replicator equation for the pure-strategy polymorphic model if and only if it corresponds to an ESS. Finally, we prove that a strict Nash equilibrium is a pure-strategy ESS that is a locally asymptotically stable equilibrium of the replicator equation in n-strategy time-constrained matrix games. PMID- 29332299 TI - Similarity search combined with docking and molecular dynamics for novel hAChE inhibitor scaffolds. AB - The main purpose of this study was to address the performance of virtual screening methods based on ligands and the protein structure of acetylcholinesterase (AChE) in order to retrieve novel human AChE (hAChE) inhibitors. In addition, a protocol was developed to identify novel hit compounds and propose new promising AChE inhibitors from the ZINC database with 10 million commercially available compounds. In this sense, 3D similarity searches using rapid overlay of chemical structures and similarity analysis through comparison of electrostatic overlay of docked hits were used to retrieve AChE inhibitors from collected databases. Molecular dynamics simulation of 100 ns was carried out to study the best docked compounds from similarity searches. Some key residues were identified as crucial for the dual binding mode of inhibitor with the interaction site. All results indicated the relevant use of EON and docking strategy for identifying novel hit compounds as promising potential anticholinesterase candidates, and seven new structures were selected as potential hAChE inhibitors. Graphical abstract Compound N01 in the 4M0E hAChE crystallography structure from docking results. Yellow dashed lines Hydrogen bonds, blue dashed lines pi-stacking interactions, green dashed lines cation-pi interactions. PMID- 29332300 TI - Long term exposure to cell phone frequencies (900 and 1800 MHz) induces apoptosis, mitochondrial oxidative stress and TRPV1 channel activation in the hippocampus and dorsal root ganglion of rats. AB - Mobile phone providers use electromagnetic radiation (EMR) with frequencies ranging from 900 to 1800 MHz. The increasing use of mobile phones has been accompanied by several potentially pathological consequences, such as neurological diseases related to hippocampal (HIPPON) and dorsal root ganglion neuron (DRGN). The TRPV1 channel is activated different stimuli, including CapN, high temperature and oxidative stress. We investigated the contribution TRPV1 to mitochondrial oxidative stress and apoptosis in HIPPON and DRGN following long term exposure to 900 and 1800 MHz in a rat model. Twenty-four adult rats were equally divided into the following groups: (1) control, (2) 900 MHz, and (3) 1800 MHz exposure. Each experimental group was exposed to EMR for 60 min/ 5 days of the week during the one year. The 900 and 1800 MHz EMR exposure induced increases in TRPV1 currents, intracellular free calcium influx (Ca2+), reactive oxygen species (ROS) production, mitochondrial membrane depolarization (JC-1), apoptosis, and caspase 3 and 9 activities in the HIPPON and DRGN. These deleterious processes were further increased in the 1800 MHz experimental group compared to the 900 MHz exposure group. In conclusion, mitochondrial oxidative stress, programmed cell death and Ca2+ entry pathway through TRPV1 activation in the HIPPON and DRGN of rats were increased in the rat model following exposure to 900 and 1800 MHz cell frequencies. Our results suggest that exposure to 900 and 1800 MHz EMR may induce a dose-associated, TRPV1-mediated stress response. PMID- 29332301 TI - Evaluating Risk Tolerance from a Systematic Review of Preferences: The Case of Patients with Psoriasis. AB - BACKGROUND: Stated-preference methods have been widely used to evaluate patient relative preferences for the benefits and potential harms of psoriasis treatments. However, risk tolerance measures for treatment-related harms, a corollary of preferences, are rare despite their critical role in shared decision making and regulatory benefit-risk evaluations. This article presents a method to enhance information on patient risk tolerance through previously published preference results. OBJECTIVE: The objective of this article was to conduct the first meta-analysis of preferences to characterize the distribution of patients' maximum acceptable risk of harms associated with psoriasis treatments. DATA SOURCES: Maximum acceptable risks for treatment-related adverse events were extracted or derived from preference results published between 2011 and 2017. SYNTHESIS METHODS: Four different analyses were conducted to evaluate maximum acceptable risk information across studies: (1) listing of maximum acceptable risk values, (2) naive aggregation of maximum acceptable risks, (3) estimation of maximum acceptable risk mother distribution, and (4) random-effect regression analysis of maximum acceptable risks. RESULTS: Nine publications with maximum acceptable risk results, or with enough information to derive maximum acceptable risks, were identified from the search and screening of preference studies. The most commonly evaluated treatment benefits were duration of benefits, percentage and probability of improvement, and reductions in the coverage of lesions. The adverse-event risks most often included in the publications were those commonly associated with biologics, such as serious infections and malignancies. As expected, maximum acceptable risks changed with treatment benefits and treatment related adverse events. CONCLUSIONS: The results confirm the feasibility of using previously published preference information to characterize patient risk tolerance. The estimated distributions of maximum acceptable risk provide a benchmark against which future results can be compared, and signal gaps in our understanding of risk tolerance for specific health outcomes. PMID- 29332302 TI - Preoperative Cognitive Impairment As a Predictor of Postoperative Outcomes in a Collaborative Care Model. AB - OBJECTIVES: To compare postoperative outcomes of individuals with and without cognitive impairment enrolled in the Perioperative Optimization of Senior Health (POSH) program at Duke University, a comanagement model involving surgery, anesthesia, and geriatrics. DESIGN: Retrospective analysis of individuals enrolled in a quality improvement program. SETTING: Tertiary academic center. PARTICIPANTS: Older adults undergoing surgery and referred to POSH (N = 157). MEASUREMENTS: Cognitive impairment was defined as a score less than 25 out of 30 (adjusted for education) on the St. Louis University Mental Status (SLUMS) Examination. Median length of stay (LOS), mean number of postoperative complications, rates of postoperative delirium (POD, %), 30-day readmissions (%), and discharge to home (%) were compared using bivariate analysis. RESULTS: Seventy percent of participants met criteria for cognitive impairment (mean SLUMS score 20.3 for those with cognitive impairment and 27.7 for those without). Participants with and without cognitive impairment did not significantly differ in demographic characteristics, number of medications (including anticholinergics and benzodiazepines), or burden of comorbidities. Participants with and without cognitive impairment had similar LOS (P = .99), cumulative number of complications (P = .70), and 30-day readmission (P = .20). POD was more common in those with cognitive impairment (31% vs 24%), but the difference was not significant (P = .34). Participants without cognitive impairment had higher rates of discharge to home (80.4% vs 65.1%, P = .05). CONCLUSION: Older adults with and without cognitive impairment referred to the POSH program fared similarly on most postoperative outcomes. Individuals with cognitive impairment may benefit from perioperative geriatric comanagement. Questions remain regarding the validity of available measures of cognition in the preoperative period. PMID- 29332304 TI - The i3S initiative: a Portuguese blend of Research and Innovation. PMID- 29332303 TI - Mitochondrial DNA, nuclear context, and the risk for carcinogenesis. AB - The inheritance of mitochondrial DNA (mtDNA) from mother to child is complicated by differences in the stability of the mitochondrial genome. Although the germ line mtDNA is protected through the minimization of replication between generations, sequence variation can occur either through mutation or due to changes in the ratio between distinct genomes that are present in the mother (known as heteroplasmy). Thus, the unpredictability in transgenerational inheritance of mtDNA may cause the emergence of pathogenic mitochondrial and cellular phenotypes in offspring. Studies of the role of mitochondrial metabolism in cancer have a long and rich history, but recent evidence strongly suggests that changes in mitochondrial genotype and phenotype play a significant role in the initiation, progression and treatment of cancer. At the intersection of these two fields lies the potential for emerging mtDNA mutations to drive carcinogenesis in the offspring. In this review, we suggest that this facet of transgenerational carcinogenesis remains underexplored and is a potentially important contributor to cancer. Environ. Mol. Mutagen., 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29332305 TI - Oblique thyroarytenoid muscle in humans: An independent muscle or an accessory belly? AB - OBJECTIVES/HYPOTHESIS: This study aimed to determine the prevalence and morphological variations of the oblique thyroarytenoid (TA) muscle in humans. STUDY DESIGN: Cadaveric anatomic dissections. METHODS: One hundred hemilarynges from 50 formalin-embalmed cadavers were dissected to investigate the morphology of muscle fibers of the TA muscle. RESULTS: Thirty-six (36%) hemilarynges were found to have a distinct oblique belly superficial to the TA muscle. In 28 cases, the belly had a relatively constant origin and an insertion that extended straight onto the TA muscle from the anterosuperior area of the internal surface of the thyroid lamina to the base of the muscular process of the arytenoid cartilage. Eight cases were located in a similar area but with some differences in the origin or insertion features. CONCLUSIONS: We proposed that the oblique TA muscle has a high prevalence and probably acts to close and relax the vocal cords. It remains to be determined whether the oblique TA muscle is an independent muscle or an accessory belly of the main TA muscle. LEVEL OF EVIDENCE: NA. Laryngoscope, 128:1634-1638, 2018. PMID- 29332306 TI - Current work environments: What problems are being faced by Japanese urologists? AB - Computer technology has contributed to innovative progress in industrial infrastructures and has had a major influence on various work environments. Evaluations of work environments are routinely carried out in Western countries, but historically there has been resistance to such evaluations in Japan. In this mini-review, we discuss the current work environments of urologists in Japan. The number of urologists has increased each year, and the population density of urologists was 5.4 (per 100 000 people) in 2014. The average age of urologists in Japan was 48.9 years, and the percentage of female urologists was just 5.3%. Additionally, the geographic distribution of urologists was uneven in Japan. From projections based on population dynamics, the need for more urologists in the near future will probably increase. Because medical environments vary depending on the country, it is necessary to understand current work environments in greater detail initially. Furthermore, we should determine original measures for the establishment of satisfactory urological work environments in Japan. PMID- 29332307 TI - Scaffold thrombosis following implantation of the ABSORB BVS in routine clinical practice: Insight into possible mechanisms from optical coherence tomography. AB - OBJECTIVES: To identify potential underlying mechanisms of early and (very) late scaffold thrombosis (ScT) by optical coherence tomography (OCT), in a frame-by frame analysis. BACKGROUND: The absorb scaffold is associated with an increased risk of ScT compared with metallic stents. Several potential causes of bioresorbable ScT have been identified, however the precise etiology still remains unclear. METHODS: Between February 2013 and February 2016, 13 patients presenting with definite ScT underwent OCT imaging. After guidewire passage or balloon inflations, OCT images were acquired. Pullbacks were assessed offline at each 1 mm longitudinal interval within the treated segment and the 5 mm segments adjacent to both edges. Primary cause of ScT was assessed by reviewing medical records, baseline angiographic films, and OCT pullback and angiographic films at time of ScT. RESULTS: 13 patients, with 14 thrombotic lesions presented either with early ScT (i.e., <=30 days) or very (late) (i.e., >30 days). Analysis demonstrated a significantly smaller in-scaffold maximal lumen diameter in the early cases (2.75 +/- 0.85 mm vs. 3.00 +/- 0.46 mm; P = 0.033) and a nonsignificant smaller minimal scaffold diameter (2.44 +/- 0.62 mm vs. 2.58 +/- 0.37 mm P = 0.097). Per-strut analysis demonstrated significantly more malapposed scaffold struts in (very) late cases (6% versus 0.6%, P < 0.001). Assessment of the predominate cause showed underexpansion as the dominant factor in the early cases, while malapposition was predominantly seen in the (very)late cases. CONCLUSIONS: OCT performed in patients presenting with Absorb ScT demonstrated that malapposition of scaffold struts was more prominent in patients presenting with (very) late ScT, while underexpansion was more frequent in the early cases. PMID- 29332308 TI - Transcatheter closure of patent foramen ovale for secondary prevention of ischemic stroke: Quantitative synthesis of pooled randomized trial data. AB - OBJECTIVES: To evaluate the safety and efficacy of percutaneous device closure of patent foramen ovale (PFO) for secondary prevention of ischemic stroke BACKGROUND: Stroke remains the leading cause of serious long-term disability in the United States. The effectiveness of a percutaneous PFO closure in the prevention of recurrent cryptogenic strokes has not been established. METHODS: We performed a literature search using PubMed, EMBASE, Cochrane Central Register of Controlled Trials, Google Scholar, and Internet-based sources from January 2003 to September 2017. Randomized controlled trails (RCTs) comparing percutaneous PFO closure to medical therapy alone. RESULTS: Five RCTs (CLOSURE I, PC Trial, REDUCE, RESPECT, and CLOSE) with 1,829 patients in the device group and 1,611 patients in the medical group met inclusion criteria. The cumulative incidence of recurrent stroke was 2.02% in the PFO closure arm and 4.4% in the medical therapy group (RR 0.42, 95%CI 0.20, 0.91; P = 0.03). There was no difference in the incidence of death [0.7% vs. 0.9%; RR 0.76 (95% CI 0.35, 1.64), P = 0.49] or adverse events during the follow-up period [24.6% vs. 23.7% (RR 1.03; 95% CI 0.91, 1.16), P = 0.65] between the closure and medical therapy groups. Incidence of atrial fibrillation was significantly higher in closure group compared to medical therapy [4% vs. 0.6% (RR 4.73; 95% CI 2.09, 10.70), P = 0.0002]. The comparative effectiveness of PFO closure (compared to medical therapy) was significantly more pronounced in those younger than 45 years, males, larger shunts and disc design platforms (P < 0.05). CONCLUSIONS: Based on the results of this analysis of randomized trial data, percutaneous PFO closure appears to be a safe and effective therapeutic option for the secondary prevention of ischemic stroke in patients with PFO and cryptogenic stroke. PMID- 29332309 TI - How leaves of mycoheterotrophic plants evolved - from the view point of a developmental biologist. AB - How mycoheterotrophs have evolved and how they are sustained are enigmas. Structural analyses of the plastid genome and phylogenetic analyses of mycoheterotrophs have been used to identify mycorrhizal fungi. Molecular genetic studies have also revealed the mechanism for plant-fungi interactions. However, the evolution of the small, scale-like vegetative leaves of mycoheterotrophs is unknown. As almost all genes determining leaf size affect the floral organ sizes, it is highly implausible that loss-of-function mutations in leaf size regulators caused the evolution of smaller foliage leaves in mycoheterotrophs. In this Viewpoint, possible evolutionary scenarios of scale-like leaves in mycoheterotrophs are discussed from the perspective of developmental genetics of leaves in model plants, including: vegetative phase-specific changes in expression of leaf size regulator(s); the change from foliage leaves to scale like lateral organs; and expression of suppressor(s) involved in organ development. These possibilities can be tested in future studies. This approach will provide a new research field in the developmental biology of plants. PMID- 29332310 TI - Advances and current challenges in calcium signaling. AB - Content Summary 414 I. Introduction 415 II. Ca2+ importer and exporter in plants 415 III. The Ca2+ decoding toolkit in plants 415 IV. Mechanisms of Ca2+ signal decoding 417 V. Immediate Ca2+ signaling in the regulation of ion transport 418 VI. Ca2+ signal integration into long-term ABA responses 419 VII Integration of Ca2+ and hormone signaling through dynamic complex modulation of the CCaMK/CYCLOPS complex 420 VIII Ca2+ signaling in mitochondria and chloroplasts 422 IX A view beyond recent advances in Ca2+ imaging 423 X Modeling approaches in Ca2+ signaling 424 XI Conclusions: Ca2+ signaling a still young blooming field of plant research 424 Acknowledgements 425 ORCID 425 References 425 SUMMARY: Temporally and spatially defined changes in Ca2+ concentration in distinct compartments of cells represent a universal information code in plants. Recently, it has become evident that Ca2+ signals not only govern intracellular regulation but also appear to contribute to long distance or even organismic signal propagation and physiological response regulation. Ca2+ signals are shaped by an intimate interplay of channels and transporters, and during past years important contributing individual components have been identified and characterized. Ca2+ signals are translated by an elaborate toolkit of Ca2+ -binding proteins, many of which function as Ca2+ sensors, into defined downstream responses. Intriguing progress has been achieved in identifying specific modules that interconnect Ca2+ decoding proteins and protein kinases with downstream target effectors, and in characterizing molecular details of these processes. In this review, we reflect on recent major advances in our understanding of Ca2+ signaling and cover emerging concepts and existing open questions that should be informative also for scientists that are currently entering this field of ever-increasing breath and impact. PMID- 29332311 TI - Otolaryngology/head and neck region manifestations of Brucella. AB - OBJECTIVES/HYPOTHESIS: Patients with Brucella infection present with nonspecific symptoms originating from different organs. In this study, we investigated the manifestations involving principally the otolaryngology/head and neck region. STUDY DESIGN: Retrospective cohort chart review. METHODS: A retrospective analysis of patients diagnosed with brucellosis in a tertiary medical center. Medical records of 55 patients treated for positive Brucella blood cultures between 2007 and 2016 were analyzed. Clinical manifestations localized to the otolaryngology/head and neck region were evaluated. RESULTS: Most patients (78%) in our study group lived in rural areas. There was an almost equal gender distribution and a wide age range (2-77 years). Nonspecific symptoms, including fever (71%), fatigue (31%), weight loss (20%), and night sweats (32.7%) were the most common. Of the specific organ systems affected by Brucella, the osteoarthritic system was most commonly infected (45.5%). Three patients (5.5%) presented with predominantly localized otolaryngology/head and neck region symptoms, consisting of necrotic lymphadenopathy or a thyroid abscess. All patients underwent drainage procedures, and the diagnosis was confirmed by positive blood and pus cultures. Complete resolution was achieved with prolonged antibiotic treatment. CONCLUSIONS: Brucella infection should be suspected in patients with nonspecific constitutional symptoms associated with neck lymphadenopathy or thyroid abscess, especially in those living in rural areas. A high index of suspicion is mandatory for proper diagnosis and treatment. Formal drainage and prolonged antibiotic treatments are required. We strongly recommend simple drainage and not excision as the mainstay of surgical treatment. LEVEL OF EVIDENCE: 4. Laryngoscope, 128:2056-2059, 2018. PMID- 29332312 TI - Corrigendum. PMID- 29332314 TI - New year's greetings: International Journal of Urology celebrates 25 years. PMID- 29332315 TI - Comparison of treatment strategies for femoro-popliteal disease: A network meta analysis. AB - OBJECTIVES: We sought to compare treatment strategies in a Bayesian network meta analysis of randomized controlled trials. BACKGROUND: Peripheral artery disease (PAD) is a prevalent morbidity that is treated with various strategies. METHODS: We performed a MEDLINE search for randomized studies comparing at least 2 treatment strategies, including bypass surgery, percutaneous transluminal angioplasty (PTA) balloons, stents, covered stents, drug-eluting stents (DES), and drug-coated balloons (DCB), in patients with native femoro-popliteal disease. Mixed treatment comparison model generation was performed to directly and indirectly compare the strategies in terms of restenosis and target lesion revascularization (TLR) presented as odds ratios (OR, [95% credible intervals]). RESULTS: Twenty-nine studies with 4,820 patients were included in the present study. PTA was the largest group with 1,900 patients, followed by DCB (n = 1,343), bare metal stents (n = 941), covered stents (n = 304), DES (n = 236), and bypass (n = 92). Mean age was 68 +/- 9 years, 64% were male, 37% diabetic, and 55% smokers. Mean lesion length was 77 +/- 44 mm, and 39% were total occlusions. Bayesian hierarchical random-effects model demonstrated all treatments were significantly better than, or had a trend toward superiority over, PTA, with DCB ranking well in both restenosis (OR = 0.29, [0.17-0.47]) and TLR (OR = 0.31, [0.20-0.46]). Nonetheless, none of the therapies showed superiority in terms of survival or amputations. CONCLUSION: Treatment of femoro-popliteal disease has significantly evolved in recent years, with higher rates of patency and freedom from TLR. However, the utility of these treatment strategies in terms of reduction of amputations and overall survival remains in question. PMID- 29332316 TI - How do I implement a whole blood program for massively bleeding patients? AB - Building on the successful military experience, interest has been rekindled in transfusing whole blood (WB) early in the resuscitation of traumatically injured civilians, often before their ABO group is known. WB efficiently provides treatment for shock and coagulopathy, as well as platelet hemostatic function, to patients losing large volumes of blood. Unlike group O uncrossmatched red blood cells (RBCs), group O WB contains a substantial amount of plasma, which is incompatible with the RBCs of all non-group O recipients. Thus, when implementing a WB program, it is important to decide how to mitigate the risk of immune mediated hemolysis. Other questions that a hospital needs to answer before implementing a WB program include determining which patients will be eligible for this product, how many units eligible patients can receive, for how long it should be stored and under what conditions, and how to monitor for adverse events. The donor center needs to consider if the WB should be leukoreduced, how to comply with the AABB's transfusion-related acute lung injury risk mitigation standard, and into which storage solution it should be collected. This report describes the multidisciplinary approach taken to implementing a civilian WB program at a multihospital health care system in the United States. PMID- 29332317 TI - Routine use of Day 6 and Day 7 platelets with rapid testing: two hospitals assess impact 1 year after implementation. AB - BACKGROUND: In March 2016 the US Food and Drug Administration published a draft guidance to enhance the safety of platelets (PLTs) for transfusion. Options for hospital transfusion services include the use of rapid testing to extend apheresis PLT dating for up to 7 days. This report describes the impact of routine use of Day 6 and Day 7 PLTs at two hospital transfusion services 1 year after implementation of rapid testing for outdate extension. STUDY DESIGN AND METHODS: PLT transfusion and inventory data were obtained from two hospital-based transfusion services for 12 months before and 12 months after implementation of rapid testing to extend the outdate of apheresis PLTs to 7 days. RESULTS: The outdate rate decreased from 5% to 2% (p < 0.0001) at Hospital 1 and 28% to 14% (p < 0.001) at Hospital 2 after implementation of routine use of Day 6 and Day 7 PLTs. The proportion of apheresis PLT units that underwent secondary screening for bacterial contamination before transfusion in the postimplementation period increased from 33% to 54% at Hospital 1 and from 0% to 31% at Hospital 2. CONCLUSION: A significant decrease in outdate rate was observed after routine use of Day 6 and Day 7 PLTs. Use of rapid testing to extend PLT outdate also resulted in a larger proportion of PLTs that underwent secondary testing for bacterial contamination before transfusion. These observations demonstrate that use of rapid testing to extend apheresis PLT dating up to 7 days enhances the safety of PLTs for transfusion and decreases wastage of a limited resource. PMID- 29332318 TI - Intraspecific differences in plant defense induction by fall armyworm strains. AB - The underlying adaptive mechanisms by which insect strains are associated with specific plants are largely unknown. In this study, we investigated the role of herbivore-induced defenses in the host plant association of fall armyworm (Spodoptera frugiperda) strains. We tested the expression of herbivore-induced defense-related genes and the activity of plant-defensive proteins in maize and Bermuda grass upon feeding by fall armyworm strains. The rice strain caterpillars induced greater accumulation of proteinase inhibitors in maize than the corn strain caterpillars. In Bermuda grass, feeding by the corn strain suppressed induction of trypsin inhibitor activity whereas the rice strain induced greater activity levels. Differences in elicitation of these plant defenses by the two strains seems to be due to differences in the activity levels of the salivary enzyme phospholipase C. The levels of plant defense responses were negatively correlated with caterpillar growth, indicating a fitness effect. Our results indicate that specific elicitors in the saliva of fall armyworm stains trigger differential levels of plant defense responses that affect caterpillar growth and thus may influence host plant associations in field conditions. The composition and secretion of plant defense elicitors may have a strong influence in the host plant association of insect herbivores. PMID- 29332319 TI - Treatment of Latent Tuberculosis Infection and Its Clinical Efficacy. AB - The role of the treatment for latent tuberculosis infection (LTBI) has been underscored in the intermediate tuberculosis (TB) burden countries like South Korea. LTBI treatment is recommended only for patients at risk for progression to active TB-those with frequent exposure to active TB cases, and those with clinical risk factors (e.g., immunocompromised patients). Recently revised National Institute for Health and Care Excellence (NICE) guideline recommended that close contacts of individuals with active pulmonary or laryngeal TB, aged between 18 and 65 years, should undergo LTBI treatment. Various regimens for LTBI treatment were recommended in NICE, World Health Organization (WHO), and Centers for Disease Control and Prevention guidelines, and superiority of one recommended regimen over another was not yet established. Traditional 6 to 9 months of isoniazid (6H or 9H) regimen has an advantage of the most abundant evidence for clinical efficacy-60%-90% of estimated protective effect. However, 6H or 9H regimen is related with hepatotoxicity and low compliance. Four months of rifampin regimen is characterized by less hepatotoxicity and better compliance than 9H, but has few evidence of clinical efficacy. Three months of isoniazid plus rifampin was proved equivalence with 6H or 9H regimen in terms of efficacy and safety, which was recommended in NICE and WHO guidelines. The clinical efficacy of isoniazid plus rifapentine once-weekly regimen for 3 months was demonstrated recently, which is not yet introduced into South Korea. PMID- 29332320 TI - The Role of Tiotropium+Olodaterol Dual Bronchodilator Therapy in the Management of Chronic Obstructive Pulmonary Disease. AB - Bronchodilator therapy is central to the management of chronic obstructive pulmonary disease and are recommended as the preferred treatment by the Global Obstructive Lung Disease Initiative (GOLD). Long acting anti-muscarinics (LAMA) and long acting beta2 agonists (LABA) are both more effective than regular short acting drugs but many patients remain symptomatic despite monotherapy with these drugs. Combination therapy with LAMA and LABA increases the therapeutic benefit while minimizing dose-dependent side effects of long-acting bronchodilator therapy. The TOviTO programme has investigated the benefits of treatment with a combination of tiotropium and olodaterol administered via a single inhaler. Tiotropium+olodaterol 5/5 MUg significantly improved forced expiratory volume in 1 second (FEV1) area under the curve from 0 to 3 hours, trough FEV1 health status and breathlessness versus the mono-components and placebo. Tiotropium+olodaterol 5/5 MUg also increased endurance time and reduced dynamic hyperinflation during constant work rate cycle ergometry. On the basis of these and other studies the 2017 GOLD report recommends escalating to dual bronchodilator therapy in patients in groups B and C if they remain symptomatic or continue to have exacerbations and as initial therapy for patients in group D. PMID- 29332321 TI - Indicators and Qualitative Assessment of Lung Cancer Management by Health Insurance Review and Assessment Service (HIRA) of Korea in 2015. AB - Cancer is the leading cause of death in the Republic of Korea and cancer death accounts for 27.8% of the total deaths, which is not only a social issue but also a concern for the public. Among the cancer death rates, lung cancer mortality account for 34 deaths per 100,000 populations, making it the number one cancer death rate. In a preliminary report on cancer death in 2012, the lung cancer mortality ratio showed the regional variation indicating that there were differences in the qualitative level and the structure among the medical care benefit agency and in the assessment of the treatment process. Therefore, the Health Insurance Review and Assessment Service (HIRA) had begun evaluation of the assessment of lung cancer treatment since 2014 to improve the quality of lung cancer care through evaluation and feeds back the results of lung cancer care process. In this report, authors described the current Indicators for the lung cancer adequacy assessment proposed by HIRA and results of the evaluation reported in 2017. PMID- 29332322 TI - Tumor Immunology and Immune Checkpoint Inhibitors in Non-Small Cell Lung Cancer. AB - Lung cancer is one of the most commonly diagnosed cancers and the leading cause of cancer-related deaths worldwide. Although progress in the treatment of advanced non-small cell lung cancer (NSCLC) has been made over the past decade, the 5-year survival rate in patients with lung cancer remains only 10%-20%. Obviously, new therapeutic options are required for patients with advanced NSCLC and unmet medical needs. Cancer immunotherapy is an evolving treatment modality that uses a patient's own immune systems to fight cancer. Theoretically, cancer immunotherapy can result in long-term cancer remission and may not cause the same side effects as chemotherapy and radiation. Immuno-oncology has become an important focus of basic research as well as clinical trials for the treatment of NSCLC. Immune checkpoint inhibitors are the most promising approach for cancer immunotherapy and they have become the standard of care for patients with advanced NSCLC. This review summarizes basic tumor immunology and the relevant clinical data on immunotherapeutic approaches, especially immune checkpoint inhibitors in NSCLC. PMID- 29332323 TI - Development of Prediction Equation of Diffusing Capacity of Lung for Koreans. AB - BACKGROUND: The diffusing capacity of the lung is influenced by multiple factors such as age, sex, height, weight, ethnicity and smoking status. Although a prediction equation for the diffusing capacity of Korea was proposed in the mid 1980s, this equation is not used currently. The aim of this study was to develop a new prediction equation for the diffusing capacity for Koreans. METHODS: Using the data of the Korean National Health and Nutrition Examination Survey, a total of 140 nonsmokers with normal chest X-rays were enrolled in this study. RESULTS: Using linear regression analysis, a new predicting equation for diffusing capacity was developed. For men, the following new equations were developed: carbon monoxide diffusing capacity (DLco)=-10.4433-0.1434*age (year)+0.2482*heights (cm); DLco/alveolar volume (VA)=6.01507-0.02374*age (year) 0.00233*heights (cm). For women the prediction equations were described as followed: DLco=-12.8895-0.0532*age (year)+0.2145*heights (cm) and DLco/VA=7.69516 0.02219*age (year)-0.01377*heights (cm). All equations were internally validated by k-fold cross validation method. CONCLUSION: In this study, we developed new prediction equations for the diffusing capacity of the lungs of Koreans. A further study is needed to validate the new predicting equation for diffusing capacity. PMID- 29332325 TI - Is alpha-N-acetylgalactosaminidase the key to curing cancer? A mini-review and hypothesis. AB - In the constant battle against cancer cells, macrophages are of great importance. Their activation is achieved through various mechanisms such as Vitamin D binding protein (VDBP or Gc). After undergoing modifications via enzymes secreted by stimulated lymphocytes, VDBP is modified into Macrophages Activator Form/Factor (Gc-MAF). Some studies (particularly those focusing on cancer) have reported that an enzyme known as alpha-N-acetylgalactosaminidase (nagalase) facilitates the deglycosylation of Gc-MAF, which in turn inhibits the activation of macrophages. The aim of this review was to evaluate studies associated with nagalase and its escalation in various diseases and to propose hypothetical solutions in order to neutralize the effects of nagalase in cancer patients. PMID- 29332324 TI - Effects of Macrolide and Corticosteroid in Neutrophilic Asthma Mouse Model. AB - BACKGROUND: Asthma is a disease of chronic airway inflammation with heterogeneous features. Neutrophilic asthma is corticosteroid-insensitive asthma related to absence or suppression of TH2 process and increased TH1 and/or TH17 process. Macrolides are immunomodulatory drug that reduce airway inflammation, but their role in asthma is not fully known. The purpose of this study was to evaluate the role of macrolides in neutrophilic asthma and compare their effects with those of corticosteroids. METHODS: C57BL/6 female mice were sensitized with ovalbumin (OVA) and lipopolysaccharides (LPS). Clarithromycin (CAM) and/or dexamethasone (DXM) were administered at days 14, 15, 21, 22, and 23. At day 24, the mice were sacrificed. RESULTS: Airway resistance in the OVA+LPS exposed mice was elevated but was more attenuated after treatment with CAM+DXM compared with the monotherapy group (p<0.05 and p<0.01). In bronchoalveolar lavage fluid study, total cells and neutrophil counts in OVA+LPS mice were elevated but decreased after CAM+DXM treatment. In hematoxylin and eosin stain, the CAM+DXM-treated group showed less inflammation additively than the monotherapy group. There was less total protein, interleukin 17 (IL-17), interferon gamma, and tumor necrosis factor alpha in the CAM+DXM group than in the monotherapy group (p<0.001, p<0.05, and p<0.001). More histone deacetylase 2 (HDAC2) activity was recovered in the DXM and CAM+DXM challenged groups than in the control group (p<0.05). CONCLUSION: Decreased IL-17 and recovered relative HDAC2 activity correlated with airway resistance and inflammation in a neutrophilic asthma mouse model. This result suggests macrolides as a potential corticosteroid-sparing agent in neutrophilic asthma. PMID- 29332326 TI - Carcinogenic potential of antitumor therapies - is the risk predictable? AB - The growing number of successfully cured cancer patients has created a new field in oncogenesis. The life expectancy of such patients has increased, however this favorable event may create enough time for epigenetic events to occur which can cause a new carcinognic event, i.e. a secondary malignancy. The terms in use are second primary malignancies as well as therapy-related neoplasms in case the treatment of the first neoplasm is a direct cause. Second primary malignancies can be hematological neoplasms or solid tumors, with solid tumors having higher frequency. Hematological malignancies, especially t MDS (therapy-related myelodysplastic syndrome) and t AML (therapy-related acute myeloid leukemia), are causally associated with cytotoxic chemotherapy, while secondary solid tumors are related to radiotherapy. The pathogenic mechanisms of clonal selection in second malignancies are in connection with induction of fusion oncogenes, induction of genetic instability, selection of resistant cell clones and hereditary predisposition. The most common oncogenic agents are external (antineoplastic systemic treatments including radiation therapy), patient-specific factors (genetic, demographic, hormonal) and tumorspecific factors (tissue radiosensitivity, immunodeficiency). There are special features in the clinical picture, biological characteristics and evolution of the second neoplasm - different latency period, aggressive course and treatment resistance. Risks, types and characteristics of secondary malignancies are analyzed in specific groups of patients. For example, the peak of t-AML is several years after a primary malignancy and for solid tumors, the risk increases progressively during the observation period. In this review, the authors outline that the risk of second malignancies is predictable and can be controllable by adequate monitoring of patients as well as by personalized treatment of the first neoplasm. PMID- 29332327 TI - Stage-II thymoma and emergency coronary artery bypass. To irradiate or not to irradiate to avoid radiation induced vascular injury? Case report and literature review. AB - PURPOSE: The purpose of this study was to present the controversial role of adjuvant radiotherapy to a 72-year-old male patient with Masaoka stage II thymoma and coronary artery bypass and to review the relevant literature. METHODS: The data were collected by relevant studies on PubMed and EMBASE. Articles up to March 2017 were included. RESULTS: Although the radiation-induced vascular injury to the internal thoracic artery and its suitability for grafting in a patient who is candidate for coronary artery bypass is documented, the possible catastrophic effect of adjuvant radiotherapy to existing grafts in a patient with prior bypass surgery has not been fully investigated. CONCLUSION: The application of radiotherapy in a patient with R0 stage II thymoma is currently considered of 2B level of evidence but its potential occlusive effect to an underlying coronary graft may dramatically affect the survival of the patient and accordingly drop the level of evidence of its use. PMID- 29332328 TI - Carcinoembryonic antigen and carbohydrate antigen 19-9 serum levels in non-small cell lung cancer. AB - PURPOSE: Tauo investigate the potential diagnostic and prognostic role of carcinoembryonic antigen (CEA) and carbohydrate antigen 19-9 (CA 19-9) serum levels in non-small cell lung cancer (NSCLC). METHODS: One hundred consecutive patients with newly diagnosed primary NSCLC were included in this study (88 men and 12 women). Blood was drawn before any kind of treatment and the collected serum was processed using chemiluminescence in order CEA and CA 19-9 levels to be measured. RESULTS: No significant associations between CEA or CA 19-9 levels and any tested clinical and pathological parameter were detected. Moreover, CEA levels did not seem to affect survival. On the other hand, patients with high CA 19-9 values (>=37 IU/ml) (median survival: 8 months) had a shorter overall survival than patients with low CA 19-9 values (<37 IU/ml) (median survival: 13 months) (p=0.026). However, CA 19-9 levels did not remain an independent prognostic factor in the multivariate survival analysis (p=0.114). CONCLUSION: CEA and CA 19-9 serum levels do not seem to have any diagnostic role in NSCLC. With regard to their prognostic role, CEA values do not seem to affect the prognosis in NSCLC. However, high CA 19-9 values are associated with worse prognosis. PMID- 29332329 TI - Modified 3-week schedule of gemcitabine plus cisplatin for non-small cell lung cancer treatment. AB - PURPOSE: Gemcitabine-cisplatin combination is one of the most used schedules for non small cell lung cancer (NSCLC). Aiming to enhance dose intensity and reduce toxicity, the original 4-week schedule was modified or transformed into a 3-week schedule. The purpose of this study was to report the efficacy and tolerability of a modified 3-week regimen of gemcitabine-cisplatin. METHODS: Our patients were treated with gemcitabine (1000 mg7sol;m2) on days 1, 8 and cisplatin on day 8 (75 100 mg/m2). The toxicity was recorded according to the NCIC criteria. RESULTS: From October 2000 to December 2009 a consecutive series of 196 patients with a median age of 62 years and III-IV stage NSCLC received gemcitabine-cisplatin as induction therapy (76 patients) or palliative treatment (120 patients). The median dose intensity was 89%. In relation to day 8 of chemotherapy, 16.2% of the treatments were delayed due to hematologic toxicities. Grade 3-4 anaemia, neutropenia and thrombocytopenia was reported in 3.5, 43.8 and 4.6%, respectively. Response rate (RR) and median overall survival (OS) were 74% and 11 months in patients with locally advanced disease, and 46.7% and 9 months in metastatic patients, respectively. CONCLUSIONS: In comparison with standard or modified schedules of literature, our modified 3-week regimen of gemcitabine- cisplatin demonstrated to be equally active, similar for dose intensity and well tolerated, with better hematologic toxicity profile in terms of anaemia and thrombocytopenia. PMID- 29332330 TI - Therapeutic effect of gefitinib in advanced non-small cell lung cancer and its effect on the EGFR level in peripheral blood. AB - PURPOSE: This study was designed to investigate the therapeutic effect of gefitinib in advanced non-small cell lung cancer (NSCLC) and its effect on the level of epidermal growth factor receptor (EGFR) in peripheral blood. METHODS: A total of 58 patients with NSCLC were treated with gefinitib (iressa) (250 mg per day). EGFR levels in the peripheral blood were measured with ELISA assay before and after treatment. Statistical analyses of patient quality of life, survival and other clinical data were conducted including logistic regression analysis, x2 test and t-test. Quality of life assessment was quantified based on the Chinese version of the QLQ-C30 and QLQ-LC13 questionnaires of the European Organization for Research and Treatment of Cancer. RESULTS: The overall response rate to iressa was 38% (22 patients), and the disease control rate (response+stable) was 74% (43 patients). The mean scores of assessment of physiological functions and comprehensive quality of life in QLQ-C30 questionnaire were significantly increased with an improvement rate of 91-100%. Similarly, the mean scores of assessment of disease symptoms in QLQ-LC12 questionnaire were significantly reduced with an overall improvement rate of 73-100). Adverse drug effects were mainly grade I and II skin rashes and diarrhea. The EGFR levels in peripheral blood were significantly decreased after treatment (p<0.05). CONCLUSION: Based on our results, gefitinib showed meaningful effects in treating advanced NSCLC, significantly improving clinical symptoms and ameliorating the patient quality of life. PMID- 29332331 TI - EGFR mutations and tumor metastases in patients with nonsmall cell lung cancer in the South of Russia. AB - PURPOSE: To assess the frequencies of somatic EGFR mutations in the tumor tissues of patients with non-small cell lung cancer (NSCLC) residing in the South of Russia (SR), and to define the relationship between genetic subtypes of NSCLC and the emergence of different types of metastases. METHODS: DNA was extracted from formalin-fixed parrafin embedded (FFPE) samples of 721 patients. A total of 29 somatic EGFR mutations were detected using commercial Therascreen EGFR RGQ PCR Kit. RESULTS: EGFR mutations were significantly more frequent in females and non smokers even when considering the combination of both factors. The frequency of activating EGFR mutations across three age groups (<51, 51-61, >61 years) of women with NSCLC was significantly different (x2=10.94, p=0.004) and became higher with increasing age. Both activating and resistance mutations of EGFR were not associated with the frequency of regional or distant metastases. The frequencies of both regional and distant metastases were associated with higher disease stage (odds ratio/OR)=16.71; 95% confidence interval (CI): 9.5-29.38; p<0.0001, and OR=2.94; 95% CI: 2.22-3.88; p<0.0001, respectively) and adenocarcinona histology (OR=6.52; 95% CI: 2.03-20.92; p=0.002, and OR=1.99; 95% CI: 0.91-4.34; p=0.083, respectively) even when adjusted for age, gender, and smoking status. The risk for regional metastases development was associated with poor tumor differentiation (OR=2.91; 95% CI: 1.21-7.02; p=0.017). CONCLUSION: EGFR mutations were not associated with the frequency of regional or distant metastases in SR patients with NSCLC. PMID- 29332332 TI - A study on cellular immune function of patients treated with radical resection of pulmonary carcinoma with two different methods of anesthesia and analgesia. AB - PURPOSE: To compare the influence on the immune system of two different methods of anesthesia and analgesia in patients treated with radical resection of pulmonary carcinoma. METHODS: Thirty-four patients treated with radical resection of pulmonary carcinoma were randomly divided into two groups (group A and group B, 17 cases in each group). Patients in group A were administered total intravenous anesthesia (TIVA) without inhaled hypnotics and intravenous analgesia while patients in group B were administered TIVA combined with epidural anesthesia and epidural analgesia. We compared changes of the T cells subsets (CD3+, CD4+, CD8+ and CD4+/CD8+ ratio) and the function of natural killer (NK) cells in patients at 4 time points: before anesthesia, immediately after surgery, 24 hrs after surgery and 72 hrs after surgery. Clinical data were also collected. RESULTS: CD8+ in group A and B was significantly increased (p<0.01) while the other indexes CD3+, CD4+, CD4+/CD8+ ratio and NK cells) were significantly decreased (p<0.05). There was a significant difference in various indexes (except NK cell) before anesthesia and 72 hrs after surgery in group A (p<0.01). Various indexes of patients in group B at 72 hrs after surgery were restored to the values before anesthesia (p>0.05). We observed a significant difference in CD3+, CD8+ and CD4+/CD8+ indexes in groups A and B patients at 72 hrs after surgery (p<0.05). CONCLUSIONS: TIVA combined with epidural anesthesia and epidural analgesia demonstrated less interference with the immune system and determine fast recovery in patients with radical resection of pulmonary carcinoma. PMID- 29332333 TI - Epigallocatechin gallate from green tea exhibits potent anticancer effects in A 549 non-small lung cancer cells by inducing apoptosis, cell cycle arrest and inhibition of cell migration. AB - PURPOSE: Green tea (Camellia sinensis) is considered as a rich source of epigallocatechin gallate (EGCG) which has been shown to exert impressive pharmacological properties. The anticancer properties of EGCG have been extensively studied however, its anticancer activity has not been explored in lung cancer. The present study was therefore designed to evaluate the anticancer effects of EGCG against non-small cell lung cancer (NSCLC) cell line A-549 and normal human fibroblast FR-2 cells. METHODS: Cell viability was assessed by CCK8 assay, apoptosis by DAPI, annexin V/propidium iodide (PI) and flowcytometery and cell cycle analysis by flow cytometry. Cell migration capacity was investigated by wound-healing assay and protein expression was examined by Western blotting. RESULTS: The results revealed that EGCC could inhibit the proliferation of A-549 cells in a concentration-dependent manner and exhibited an IC50 of 25 MUM against the IC50 of 100 MUM against the normal human fibroblasts. Further evaluation revealed that EGCG exerts its anticancer effects via induction of apoptosis, modulation of Bax/blc-2 ratio and by triggering G2/M cell cycle arrest. Furthermore, EGCG could also inhibit the migration of A5-49 cells in a concentration-dependent manner. CONCLUSION: In conclusion, based on our results, we believe that EGCG could prove to be an important lead molecule for the treatment of lung cancer. PMID- 29332334 TI - MiR429 expression level in renal cell cancer and its correlation with the prognosis of patients. AB - PURPOSE: To test the hypothesis that miR429 expression in renal cancer patients is increased and plays a role in the pathogenesis of the disease. METHODS: Twenty seven renal cancer patients admitted to our hospital from May 2014 to May 2015 were enrolled as the study group, and 28 non-cancer patients were selected during the same period as the control group. Renal biopsy and serum samples were used to detect miR429 expression levels, and the patient histories were obtained to make relevant associations to clinical outcomes. In addition, the renal cancer cell line SK458 was used for overexpressing or knocking out miR429 in in vitro experiments to observe changes in proliferation and apoptosis rates. RESULTS: The expression levels of miR429 in renal tissues and serum of renal cancer patients were significantly higher compared with control patients (p<0.05). In addition, a correlation was found between the levels of miR429 in the serum of renal cell cancer patients and their clinical outcome after conventional treatment, with patients expressing lower miR429 levels showing better clinical outcomes. Finally, experiments with renal cancer cells revealed that the proliferation of cells overexpressing miR429 was increased and their apoptosis rate was significantly reduced, while the opposite was true in miR429-knockout cells. CONCLUSIONS: It seems that miR429 can inhibit normal apoptosis rates and lead to high proliferation rates. Accordingly, the higher serum miR429 level in renal cancer patients suggests that it plays a role in the pathogenesis of the disease, while the differential miR429 levels according to the patients' clinical outcomes after treatment suggest that miR429 may be useful as a marker for prognosis. PMID- 29332335 TI - Clinicopathological characteristics and survival in Serbian patients with renal cell carcinoma: a retrospective analysis. AB - PURPOSE: Indications of kidney cancer outcome in lowerincome countries are based on an incidence/mortality ratio due to lack of survival information. This study was conducted to provide outcome data in Serbian patients with renal cell carcinoma (RCC) and to identify prognostic factors that could affect their overall survival (OS). METHODS: This retrospective study included 185 patients who underwent nephrectomy. We assessed certain clinicopathological data including age, gender, tumor size, grade, stage and histological subtypes for their possible impact on OS. RESULTS: The 5-year OS was 63.2%. Significant association was found between OS and age (log-rank 12.455, p=0.006), tumor size (log-rank 26.425, p=0.000), grade (log-rank 13.249, p=0.000) and stage (log-rank 43.235, p=0.000). Univariate analysis indicated size (p=0.000), grade (p=0.001) and stage (p=0.000) as prognostic factors for OS. In multivariate analysis, grade (p=0.014) and stage (p=0.000) remained significant predictors of OS. CONCLUSION: Tumor grade and stage were identified as independent prognostic factors of OS survival in Serbian patients with RCC. PMID- 29332336 TI - Downregulation of guanine nucleotide-binding protein beta 1 (GNB1) is associated with worsened prognosis of clearcell renal cell carcinoma and is related to VEGF signaling pathway. AB - PURPOSE: Clear-cell renal cell carcinoma (ccRCC) is characterized by genetic abnormalities, while the role of Guanine Nucleotide-Binding Protein Beta 1 (GNB1) in ccRCC has not been studied. We thus aimed to evaluate the expression and prognostic value of GNB1 in ccRCC. METHODS: A two-stage study (exploration and validation) was conducted using in silico and immunohistochemical (IHC) scoring of ccRCC samples from our institute, to evaluate the association between GNB1 expression and clinicopathological parameters of ccRCC patients. Pathway analyses were performed for genes coexpressed with GNB1 using the KOBAS platform to profile the function of GNB1 and IHC validation. RESULTS: In the exploration stage, data from TCGA ccRCC dataset were reproduced, which contained 537 patients with ccRCC and found that downregulation of GNB1 was significantly associated with worse prognosis. IHC staining from the Human Protein Atlas showed significantly downregulation of GNB1 in ccRCC tissue compared with normal kidney. Pathway analysis showed significantly altered vascular endothelial growth factor (VEGF) signaling pathways among which expressions of 3 genes (WASF2, NRP1, and HIP1) were significantly associated with GNB1 expression, respectively. In the validation stage, included were 80 ccRCC samples and GNB1 expression was scored using IHC positivity. GNB1 expression was negatively associated with tumor stage, lymph node invasion, metastasis, older age, and increased tumor grade. Female gender and receiving neoadjuvant therapy were also associated with decreased GNB1 expression. The expressions of WASF2, NRP1 and HIP1 were also studied and found that they were significantly associated with GNB1. CONCLUSION: GNB1 was downregulated in ccRCC. Decreased GNB1 expression was associated with worsened disease characteristics and prognosis. GNB1 was related with VEGF signaling in ccRCC, implying a therapeutic potential of this factor. PMID- 29332337 TI - Systemic treatment and primary tumor location in patients with metastatic colorectal cancer. AB - PURPOSE: Tumor location (right-sided vs. left-sided) is known to exert a significant influence on the prognosis of primary colorectal cancer (CRC). Given the genetic continuity between primary and metastatic lesions, we aimed to summarize the existing literature on the prognostic implications of primary tumor site as well as to examine the response to chemotherapy by primary tumor location in patients with metastatic CRC (mCRC). METHODS: A structured review of the literature was performed between 6/1/2016-7/1/2016 using the Pubmed database. Original research articles published between 1/1/2000- 07/01/2016 were considered eligible. The primary endpoints were overall survival (OS)/ progression free survival (PFS) and response to systemic treatment in patients with mCRC. RESULTS: Eleven studies were included. Tumor site was a strong independent predictor of worse OS/PFS in 9 studies, with right-sided tumors having worse prognosis in all cases. Furthermore, 6 studies demonstrated an inferior response to systemic treatment or worse prognosis following the administration of specific regimens among patients with right-sided cancers. As such, there is significant evidence that right-sided lesions are associated with poor outcomes and resistance to systemic treatment. CONCLUSION: Consequently, primary tumor location should be a consideration, when the administration of systemic therapy is contemplated in mCRC. PMID- 29332338 TI - X-ray-induced epithelial-mesenchymal transition in SW480 colorectal cancer cells and its potential mechanisms. AB - PURPOSE: The purpose of this study was to investigate the relation between X-ray irradiation and epithelial-mesenchymal transition (EMT), as well as the potential mechanisms of X-ray-induced EMT in SW480 colorectal cancer (CRC) cells. METHODS: It is well known that EMT plays a critical role in invasive and metastatic of colorectal cancer progression. However, the possible role of X-ray irradiation on EMT in colorectal cancer is widely disputed and its potential mechanisms are unclear. SW480 CRC were irradiated (0, 2, 4, 6, 8 Gy) and cultured for 48 hrs, and then the cellular morphology was observed. Protein and mRNA expressions were examined by Western blot and QRT-PCR. Cell migratory and invasive capacity was evaluated by Transwell assay. RESULTS: In the 2, 4, 6, 8 Gy groups, SW480 CRC exhibited a classical mesenchymal phenotype compared with the 0 Gy group. The expression of E-cadherin was significantly decreased, while the expression of vimentin and Smad3 was significantly increased in the 2, 4, 6, 8 Gy groups (p<0.05) compared with the 0 Gy group; still, the expression of K-ras decreased in the 4, 6, 8 Gy groups (p<0.05) compared with the 0 and 2 Gy groups. Furthermore, the cell migration and invasion capacity was significantly enhanced in the 4 and 8 Gy groups compared with the 0 Gy group (p<0.05). CONCLUSION: These results support the fact that X-ray irradiation can induce EMT through promoting Vimentin and Smad3 expression in SW480 CRC cells. PMID- 29332339 TI - p21 does, but p53 does not predict pathological response to preoperative chemoradiotherapy in locally advanced rectal cancer. AB - PURPOSE: Preoperative chemoradiotherapy (CRT) is the standard treatment option in locally advanced rectal cancer. The tumor response is assessed through tumor and nodal downstaging and the tumor regression grade. Currently, there is no method to predict a tumor response to CRT. We aimed to evaluate whether p21 and p53 expressions could be a reliable predictors of pathological response to CRT. METHODS: Fifty patients with locally advanced rectal cancer were treated with preoperative radiotherapy combined with mitomycin C and capecitabine. p21 and p53 immumohistochemical staining was performed on pretreatment biopsies and the results were compared with tumor regression according to grading systems by Dworak (TRG grades) and by Wheeler (RCRG grades). RESULTS: Testing RCRG grades in relation to p21 expression showed statistically significant difference (p=0.021). RCRG 3 (poor response) was more frequent in the group of patients with low p21. According to Dworak, grade 4 (complete regression) was more frequent in the group of patients with positive p21 expression (p=0.032). Significant difference in p21 expression in grade 4 group compared with all other grade groups was also found (p=0.007). Patients with immune expression of p21 had significantly higher percentage of complete regression in comparison to the patients with low expression of p21. We haven't found any correlation between p53 expression and histopathological (HP) as well as regression grades. CONCLUSION: According to both grading systems, our results suggest that p53 expression does not, but p21 expression does predict pathological response to preoperative CRT. PMID- 29332340 TI - Imperatorin shows selective antitumor effects in SGC-7901 human gastric adenocarcinoma cells by inducing apoptosis, cell cycle arrest and targeting PI3K/Akt/m-TOR signalling pathway. AB - PURPOSE: The main purpose of the present study was to determine the anticancer properties of imperatorin - a naturally occurring coumarin compound - against SGC 7901 human gastric adenocarcinoma cells and the mouse fibroblast cell line 3T3 (normal cell line). METHODS: Imperatorin effects on apoptosis induction, cell cycle phase distribution and PI3K/Akt/m-TOR signalling pathways were studied. MTT cell viability assay examined the compound's cytotoxic potential, while inverted phase contrast microscopy and fluorescence microscopy techniques were used to study morphological changes induced in SGC-7901 cells by imperatorin. Flow cytometry examined its effects on cell cycle progression while Western blot assay was used to study changes in protein expressions of PI3K/Akt/m-TOR pathway. RESULTS: Imperatorin induced a dose-dependent growth inhibition of the SGC-7901 gastric cancer cells with an IC50 value 62.6 MUM, while in case of normal 3T3 mouse fibroblast cells, the drug did not show significant toxicity (IC50 value 195.8 MUM), indicating that the drug selectively induced cytotoxicity in gastric cancer cells. The cells became rounded up, shrunken in size and got detached from the monolayer attached to well surface. Cells treated with 10, 75 and 175 MUM imperatorin indicated that they began to emit yellow or red fluorescence which is an indication of early or late apoptosis respectively. Imperatorin also induced significant DNA fragmentation along with increasing the fraction of sub-G1 cells, indicating a sub-G1 cell cycle arrest. CONCLUSION: Imperatorin could prove an important lead molecule for the treatment of gastric cancer and deserves further research in vivo against more cell lines. PMID- 29332341 TI - Association of the combined parameters including the frequency of primary cilia, CD8+ tumor infiltrating lymphocytes and PD-1 expression with the outcome in intestinal cancer. AB - PURPOSE: Primary cilium (PC) is considered to be a functional homologue of the immune synapse. Microtubule structures, PC of cancer associated fibroblasts and immune synapses between cytotoxic CD8+ tumor infiltrating lymphocytes (TILs) and cancer cells, are regularly found in varying amounts in the microenvironment of solid tumors. The purpose of this study was to find out the potential association and combined prognostic significance of the frequency of PC, PD-1 and CD8+ TILs in patients with intestinal cancer. METHODS: The frequency of PC, programmed cell death protein-1 receptor (PD-1) expression and the frequency of stromal and intraepithelial CD8+TILs were evaluated in samples of colorectal adenocarcinoma (32 patiens) and small bowel cancer (8 patients). RESULTS: The median frequency of PC was 0.25%. The expression of PD1 was <5% in 34 patients, 5-25% in 5 patients and 26-50% in 1 patient. The frequency of stromal CD8+ TILs was negative in 3 patients, <25% in 26, 26-50% in 10 and >50% in 1 patient, respectively. Intraepithelial CD8+ TILs were not detectable in 14, <25% in 24 and 26-50% in 2 patients, respectively. Statistically, the frequency of PC and PD-1 positivity were significantly associated (p=0.004). An association between the PC frequency and intraepithelial CD8+ TILs was of borderline statistical significance (p=0.059). An index combining the frequency of PC and stromal CD8+ TILs, but not the combination of frequency of PC and intraepithelial CD8+ TILs, was of borderline prognostic significance (p=0.067). CONCLUSIONS: The present study provides the first data on the potential association and combined prognostic significance of frequency of PC, PD-1 and CD8+ TILs in patients with intestinal cancer. PMID- 29332342 TI - Study on the association between PI3K/AKT/mTOR signaling pathway gene polymorphism and susceptibility to gastric cancer. AB - PURPOSE: Excessive activation of PI3K/AKT/mTOR signaling pathway is one of the most common changes in human cancers, and single nucleotide polymorphisms (SNPs) existing in its functional region can affect the occurrence process of a variety of cancers. This study aimed to screen out the SNPs associated with susceptibility to gastric cancer in the PI3K/AKT/mT0R signaling pathway. METHODS: In this case-control study, the tagging SNPs in the promoter region5'-UTR, exon region or 3'-UTR of PIK3CA, PIK3CB, PIK3R1, PIK3R2, PIK3R3, AKT1, AKT2, AKT3 and mTOR genes were screened out. The relationship between the genetic variation of PI3K/AKT/mT0R signaling pathway genes and the susceptibility to gastric cancer in Chinese Han population was investigated by this casecontrol study. RESULTS: The results showed that the polymorphisms of the two loci, PIK3R3 rs7536272 (Additive model: OR=1.16, 95% CI=1.01-1.35) and mTOR rs2295080 (GG vs TT: OR=0.75, 95% CI=0.60-0.94; Additive model: OR=0.78, 95% CI=0.66- 0.93), were associated with the risk of gastric cancer in the studied population and there was a combined effect between the two loci (ptrend=0.005). CONCLUSIONS: In conclusion, the polymorphisms of the two loci, PIK3R3 rs7536272 and mTOR rs2295080, on the PI3K/AKT/mTOR signaling pathway genes are associated with genetic susceptibility to gastric cancer in Chinese population. PMID- 29332343 TI - Clinical relevance of telomerase polymorphism for breast cancer: A systematic review. AB - PURPOSE: To perform a systematic review to explore the clinical relevance of hTERT polymorphisms for breast cancer (BC). METHODS: Twenty-nine polymorphic regions were evaluated after comprehensive searching of 1236 articles, and selection of 9 publications (total of 12986 cases and 16758 controls). RESULTS: About the influence of hTERT variants in BC risk, 3 studies showed that the variant rs2736098 was associated with increasing risk. The variants rs10069690 and rs2853676 were also described as risk factors for BC. Only one variant rs2736100 presented as risk factor for BC. MNS16A genotype influenced the risk of BC in an Iranian, but not in the Greek and American populations. The associations of 5 hTERT variants with expression of hormone receptors were also evaluated in some studies. One study showed that the variant rs10069690 was associated to the estrogen receptor (ER)-negative and triple negative subtype, but other authors did not find the same results. In addition, the association of rs273618 with ER /progesterone receptor (PR)+ cases, and rs10069690, rs2735940, rs4246742 and rs2736100 with both negative receptors were described. After data reanalyses, we found that the variant rs2735940 and rs2736100 were associated with ER-/PR- cases among patients with BC. Also, the variant rs2736100 was associated with ER+/PR+ cases and the variant rs2736118 was associated to ER+/PR+ and ER-/PR+ cases. CONCLUSIONS: The associations between hTERT variants and BC risk and outcomes could be useful since a polymorphism can be identified before the diagnosis, but the heterogeneity of data and analyses found in different studies lead to many controversies. PMID- 29332344 TI - In vitro antitumor activity of guttiferone-A in human breast cancer cells is mediated via apoptosis, mitochondrial mediated oxidative stress and reactive oxygen species production. AB - PURPOSE: Breast cancer is the second most frequently diagnosed cancer and is considered as the main cause of cancer related death in females. It is estimated that about one-third of women with breast cancer develop metastases and eventually die of this disease. The main treatment options for breast cancer include surgical interventions followed by chemotherapy, hormonotherapy or radiation. However, the side effects associated with the treatment of breast cancer negatively affects the quality of patient's life. In the present study a plant-derived compound, guttiferone- A, was evaluated for its anticancer activity against MCF-7 breast cancer cell line. METHODS: MTT assay was used to evaluate the cytotoxic effects while phase contrast microscopy was used to assess the effects of the compound on cell morphology. Effects on reactive oxygen species (ROS) and mitochondrial membrane potential were evaluated by flow cytometric analysis. RESULTS: It was observed that guttiferone-A reduced the cell viability of MCF-7 cancer cells in a dose-dependent manner. The IC50 for guttiferone-A was found to be 15 MUM against MCF-7 cells. Moreover, guttiferone-A induced the production of high levels of ROS and caused significant reduction in the mitochondrial membrane potential. Additionally, guttiferone-A also induced apoptosis in MCF-7 cancer cells in a dose-dependent manner. CONCLUSION: Taken together, we conclude that guttiferone- A is a potential anticancer molecule and may prove to be a lead molecule in cancer drug discovery. PMID- 29332345 TI - Correlation between miR-19a inhibition and radiosensitivity in SiHa cervical cancer cells. AB - PURPOSE: MicroRNAs (miRs) have been implicated in many aspects of tumor cell development and survival, including sensitivity to radiotherapy. In particular, miR-19a regulates the proliferation of cervical cancer cells, but its role in radiosensitivity is not known. Here, we describe the consequence of silencing miR 19a using antisense oligonucleotides (ASO) on the radiosensitivity of human cervical cancer SiHa cells. METHODS: Following transfection with miR-19a-ASO or control-ASO, SiHa cells were exposed to X-rays to determine their proliferation. RESULTS: Silencing of miR-19a significantly improved the sensitivity of SiHa cells to radiotherapy by reducing proliferation, increasing apoptosis, upregulating BAX, and downregulating Bcl-2. CONCLUSION: Overall, inhibiting miR 19a significantly improves the sensitivity of SiHa cells to radiotherapy, which could lead to new methods for the treatment of cervical cancer. PMID- 29332346 TI - Vaginal packing volume impact on dose parameters during radiography and computed tomography based postoperative brachytherapy of cervical carcinoma. AB - PURPOSE: To investigate the influence of the vaginal packing volume on the registered dose parameters evaluated by radiography (2D) and computed tomography (CT) (3D) based brachytherapy planning in cervical cancer patients treated with postoperative radiotherapy. METHODS: The postoperative radiotherapy was performed in 40 cervical cancer patients with increased risk for disease relapse. Both, radiography and CT based brachytherapy planning were done in all patients. Vaginal packing volume was evaluated by clinical target volume (CTV)uk, assessed on CT scans and analyzed according to the registered dose parameters: doses delivered to the organs at risk (OAR) and the defined CTV, using both planning methods. RESULTS: CTVuk volume had statistically significant influence on CTV coverage with the prescribed brachytherapy doses D90 (p<0.01) and D100 (p<0.01), revealing a CTVuk cut-off value of 25.6 cm3. Dividing the patients into two groups according to the cutoff value, we found a statistical significance in the registered doses to the rectal wall and no significance in the bladder wall doses between the groups. Also, a statistically significant, negative correlation was found between CTVuk and following doses: Rmax (rho= -0.34, p<0.05), D0.1cc (rho= 0.76, p<0.01), D1cc (rho= -0.74, p<0.01) and D2cc (rho= -0.72, p<0.01), D90 (rho= -0.80, p<0.01), D100 (rho= -0.7, p<0.01). CONCLUSION: If the brachytherapy vaginal packing is of a large volume (more than 25.6 cm3), an asymmetric deformation of the proximal part of the vaginal cavity might appear, leading to inappropriate dose coverage of the CTV part of the vaginal mucosa. Also, making a vaginal packing volume larger than 25.6 cm3 made no further reduction in the bladder dose, but it made a statistically significant further reduction in the rectal doses. PMID- 29332347 TI - Genetically engineered bone marrow-derived mesenchymal stem cells co-expressing IFN-gamma and IL-10 inhibit hepatocellular carcinoma by modulating MAPK pathway. AB - PURPOSE: One of the major challenges in delivering cytokines for the treatment of hepatocellular carcinoma (HCC) is the mode of delivery. This study hypothesized that genetically engineered bone marrow derived mesenchymal stem cells (BMSCs) co expressing IFN-gamma and IL-10 can serve as a potential therapeutic strategy in the treatment of HCC by inhibiting cell proliferation. METHODS: Male Sprague Dawley rats (n=5, 200-250 g) for BMSCs isolation and Nude/SCID mice (n=35,12-20g) to develop liver cancer xenograft model were used. Mice were subcutaneously injected HepG2 cell suspension on left flank. BMSCs were genetically engineered with the recombinant lentiviral vectors expressing IFN-gamma and IL-10. The experiments were performed in 5 groups (phosphate buffered saline/PBS, BMSCs, BMSC-IFN-gamma, BMSC-IL-10 and BMSC-IFN-gamma-IL-10) and the genetically engineered BMSCs were transplanted into HCC mice. Cell viability was measured by MTT assay followed by the evaluation of the effect of cell-cycle regulators (p21, p27, cyclin D1 and Rb). Protein expression of p38, ERK and JNK was assessed by immunohistochemistry using the cell proliferation marker Ki67. RESULTS: The combination of two cytokines (IFN-gamma and IL- 10) engineered into BMSCs resulted in a significant reduction in HepG2 cell viability (*p<0.05 vs PBS treated and #p<0.05 vs BMSC-treated group). Significantly increased expression of cell cycle inhibitors p21 and p27 in parallel with reduced cyclin D1 expression were observed. Reduced phosphorylation of Rb demonstrated the repression of G1/S progression. BMSC-IFN-gamma-IL-10 treatment significantly reduced the tumor growth at the end of 36 days compared to the group treated with PBS or BMSCs alone. This effect was accompanied with the modulation of MAPK pathway with the activation of p38 and JNK, and inactivation of ERK. CONCLUSION: The co-expression of IFN-gamma and IL-10 in BMSCs inhibits HCC in vitro and in vivo by modulating cell cycle regulators and MAPK pathway. PMID- 29332348 TI - Sorafenib combined with radiofrequency ablation as treatment for patients with hepatocellular carcinoma: a systematic review and meta-analysis. AB - PURPOSE: To evaluate the safety and efficacy of a combination of sorafenib and radiofrequency ablation (RFA) in patients with hepatocellular carcinoma (HCC). METHODS: A systematic literature search was conducted using PubMed, Embase, the Cochrane Library, China National Knowledge Infrastructure (CNKI), China Biology Medicine disc (CBMdisc), WanFang Database, for all years up to January 2017. Pooled analyses of overall survival (OS), tumor- free survival, recurrence rates and adverse events were performed. RESULTS: IA total of 7 case control studies consisting of 1765 HCC patients were selected and included in this metaanalysis. Patients treated with sorafenib-RFA and sorafenib alone, RFA alone and surgery had no significant differences in 1-year OS (p=0.310), 2-year OS (p=0.262), 3 year OS (p=0.179), 4-year OS (p=0.238) and 5-year OS (p=0.933); 1-year recurrence rate (p=0.653), 2-year recurrence rate (p=0.416), 3-year recurrence rate (p=0.304), and 5-year recurrence rate (p=0.807); 1-year tumor-free survival rate (p=0.943), 3-year tumor-free survival rate (p=0.825), 5-year tumor-free survival rate (p=0.893) and overall adverse events (p=0.097). CONCLUSION: RFA-sorafenib combination may not be a better approach for patients with HCC. More well designed randomized clinical trials (RCTs) should be performed before we finally arrive at a rational comprehension about the therapeutic value of the discussed options. PMID- 29332349 TI - Characteristics and clinical significance of recurrent laryngeal nerve lymph node metastasis in esophageal squamous cell carcinoma. AB - PURPOSE: The recurrent laryngeal nerve lymph nodes (RLN LNs) are among the most common metastatic sites in esophageal cancer, and the dissection of these lymph nodes (LNs) is considered beneficial. The purpose of this study was to evaluate the characteristics of RLN LN metastases from esophageal squamous cell carcinoma, and the effects of these metastases on the prognosis of patients. In addition, we aimed to determine the reasonable range of dissection of regional LNs. METHODS: The clinical data from 348 patients who underwent resection for esophageal carcinoma were retrospectively analyzed. RESULTS: Recurrent laryngeal nerve palsy occurred in 37.6% of the patients. In a subgroup of patients with lower esophageal tumors, cervical LN metastases were significantly more common in patients with positive rather than negative RLN LNs. The primary tumor site, tumor differentiation, and tumor invasion depth were factors that significantly influenced RLN LN metastasis. Multivariate analysis revealed that RLN LN metastasis was a significant factor associated with overall survival (OS) and disease-free survival (DFS) (p<0.001). CONCLUSION: Metastasis to RLN LNs is a reliable indicator of cervical LN metastasis in middle/lower thoracic esophageal cancer. RLN LN metastasis may act as a prognostic indicator for patients with esophageal squamous cell carcinoma. PMID- 29332350 TI - Short- and long-term outcomes of minimally invasive esophagectomy in elderly patients with esophageal squamous cell carcinoma. AB - PURPOSE: In recent years, there has been an increase in the number of elderly patients undergoing surgery for esophageal squamous cell carcinoma (ESCC). However, there are few studies on short- and long-term outcomes of minimally invasive esophagectomy (MIE) in such patients. The purpose of this study was to report both short- and long-term outcomes of MIE in elderly patients with ESCC. METHODS: A total of 273 patients with ESCC underwent MIE at our hospital from January 2010 to December 2016. Patients were divided into elderly (>=70 years) and nonelderly (<70 years) groups based on age at the time of surgery. Groups were compared with regard to general preoperative data, intraoperative data, postoperative 30-day complications and their severity, pathological result, recurrence, overall survival (OS), and disease-free survival (DFS) rates. RESULTS: The elderly group was characterized by higher Charlson Comorbidity Index >2 and American Society of Anesthesiologists (ASA) grade. Comparisons of other general preoperative data showed no significant differences. In addition, there were no significant differences in short-term outcomes except for postoperative 30-day complication rate. Although 30-day postoperative complication rate was higher in the elderly group compared with the nonelderly group, the incidence of major complications was similar between groups. Cancer recurrence, 5-year OS, and 5-year DFS rates also were similar between groups. CONCLUSION: Although elderly patients with ESCC had higher Charlson Comorbidity Index and ASA grade, they could achieve short- and long-term outcomes of MIE similar to those of nonelderly patients. PMID- 29332351 TI - Cytoreductive surgery and hyperthermic intraperitenoal chemotherapy (HIPEC) for colorectal and appendiceal carcinomas with peritoneal carcinomatosis. AB - PURPOSE: Cytoreductive surgery combined with intraperitoneal chemotherapy has been established as the standard treatment for selected patients with peritoneal malignancy. The purpose of the study was the presentation of the 10- year experience with cytoreductive surgery and intraperitoneal chemotherapy in patients with peritoneal carcinomatosis of colorectal and appendiceal origin. METHODS: Clinical and histopathological variables were retrospectively reviewed in a prospectively maintained database. All patients underwent cytoreductive surgery with the purpose of complete or near-complete cytoreduction. The variables were correlated to survival, and recurrences. Morbidity and hospital mortality were recorded. RESULTS: From 2006-2016 100 patients underwent cytoreductive surgery for colorectal and appendiceal carcinomas with peritoneal carcinomatosis. The hospital mortality and morbidity were 2% and 43% respectively. Completeness of cytoreduction (CC) 0 surgery was possible in 51% of the patients. The median and 10-year survival were 13 months and 23% respectively. The completeness of cytoreduction, performance status and the lymph node status were identified as prognostic indicators of survival. The recurrence rate was 55%. The completeness of cytoreduction, the lymph node status, and the use of postoperative adjuvant systemic chemotherapy were identified as prognostic variables of recurrence. CONCLUSION: Nearly half of the patients with peritoneal carcinomatosis of colorectal and appendiceal origin may undergo complete cytoreduction and nearly half of them may enjoy long-term survival. PMID- 29332352 TI - Puerarin leads to K562 cell apoptosis of chronic myelogenous leukemia via induction of autophagy. AB - PURPOSE: To study the effects of puerarin on the viability, apoptosis and autophagy of K562 cells of chronic myelogenous leukemia (CML), and to provide a basis for the study on antitumor mechanism of puerarin. METHODS: K562 cells of human CML were taken as the study material and puerarin was applied in different concentrations. The effect of puerarin on cell viability was detected via cholecystokinin-8 (CCK8) and lactate dehydrogenase (LDH). Flow cytometry and western blot (WB) were used to detect cell apoptosis, while Cyto-ID and WB were used to detect the cell autophagy level. RESULTS: Puerarin inhibited the K562 cell viability and increased cell apoptosis and autophagy in a dose-dependent manner. After 3-methyladenine (3-MA) autophagy inhibitor was used, puerarin's induction of cell autophagy was inhibited, and its apoptosis induction was also inhibited. CONCLUSIONS: Puerarin increases the cell apoptosis through induction of autophagic apoptosis of K562 cells. PMID- 29332353 TI - Aesculetin (6,7-dihydroxycoumarin) exhibits potent and selective antitumor activity in human acute myeloid leukemia cells (THP-1) via induction of mitochondrial mediated apoptosis and cancer cell migration inhibition. AB - PURPOSE: The main target of the present research was to examine the antitumor properties of aesculetin in human acute myeloid leukemia cancer cells (THP-1) and peripheral blood mono-nucleated cells (PBMCs) (used as normal cell line model) along with the determination of its effects on induction of apoptosis, inhibition of cancer cell migration and changes in Bcl-2/Bax protein expressions. METHODS: MTT colorimetric bioassay was performed to study the impact of this natural compound on cytotoxicity of both cell types. Moreover, transmission electron microscopy (TEM), inverted phase contrast and fluorescence microscopic techniques were used to study the effects on cell morphology and cellular ultrastructural details connected with apoptosis. The effects of aesculetin on Bcl-2/Bax protein expressions were assessed by Western blot method. RESULTS: Selective and dose dependent antiproliferative activity of aesculetin in human acute myeloid leukemia cancer cells was observed. However, the compound did not induce significant cell growth inhibition of PBMCs, which were used as normal cell controls. Fluorescence and inverted phase contrast microscopic techniques revealed that aesculetin led to morphological changes suggestive of apoptosis (cell shrinkage, chromatin abridgment and membrane blebbing). TEM analysis showed that aesculetin led to fragmented plasma membrane along with appearance of spherical projections (apoptotic bodies). The wound scratch widened after aesculetin treatment, indicating that aesculetin exhibits anticancer effects by suppressing the cancer cell migration. Aesculetin led to significant and dose dependent reduction in the Bcl-2 expression while the expression of Bax was significantly enhanced resulting in overall reduction of Bcl-2/Bax ratio. CONCLUSION: The results of the present work revealed that aesculetin exhibits selective anticancer effects in THP-1 human leukemia cells without causing much cytotoxicity in PBMCs. It also led to significant apoptosis induction, inhibition of cancer cell migration and decrease in Blc-2/Bax ratio. PMID- 29332354 TI - Inhibition of telomerase potentiates enzalutamide efficiency of androgen sensitive human prostate cancer cells. AB - PURPOSE: Androgen deprivation therapy (ADT) is one of the main strategies to treat prostate cancer (PCa) at various stages of its development. Androgen receptor (AR) antagonists such as enzalutamide are mainstay treatments for castration-sensitive prostate cancer. Though, a majority of patients initially respond to ADT, most will eventually progress to castrate-resistant, due to the development of different mutations on the AR. PCa cells express high telomerase activity, and there is a correlation between the total activity of telomerase and the Gleason score. Therefore, we hypothesized that the combination of enzalutamide plus a telomerase inhibitor could be more effective than enzalutamide alone in decreasing cell survival. METHODS: In this study MTT test, RT-qPCR and imagebased cytometry were used to investigate cell viability, apoptosis and cell cycle progression of androgen-responsive human prostate cancer LNCaP cells. The cells were treated with 5 MUM enzalutamide and 40 MUM telomerase inhibitor BIBR 1532, or with their combinations for 72 hrs. RESULTS: Enzalutamide and BIBR 1532 alone inhibited cell proliferation in a dose-dependent manner. The combinations of the two agents could synergistically induce apoptotic and necrotic cell death. Either inhibition of telomerase by BIBR 1532 or AR blockages by enzalutamide decreased prostate-specific antigen (PSA) and the catalytic component of telomerase, hTERT, expression. CONCLUSION: These results suggest that telomerase inhibition therapy may contribute to the efficacy of enzalutamide in the androgen-sensitive PCa model. PMID- 29332355 TI - Antitumor activity of 4-O-Methylhonokiol in human oral cancer cells is mediated via ROS generation, disruption of mitochondrial potential, cell cycle arrest and modulation of Bcl-2/Bax proteins. AB - PURPOSE: The plant-derived natural product 4-O-methylhonokiol (MH) has been reported to possess tremendous pharmacological potential ranging from neuroprotection to anticancer activity. However, the anticancer activity of MH in oral squamous cell carcinoma (OSCC) cells has not been evaluated. In the present study, MH was evaluated for its anticancer activity against OSSC PE/CA-PJ41 cells and the possible underlying mechanism was determined. METHODS: Cell cytotoxicity was evaluated by colorimetrybased MTT assay while the effects on cell cycle phase distribution were assessed by flow cytometry. Effects of MH on reactive oxygen species (ROS) production and mitochondrial membrane potential (MMP) were evaluated by flow cytometry. Western blot assay was finally utilized to study the effects of MH on key cancer and apoptosis-linked proteins including Bax and Bcl 2. RESULTS: MH induced cytotoxicity in OSCC PE/CA-PJ41 cells with an observed IC50 of 1.25 MUM. It also caused significant increase in the production of ROS and disrupted the MMP in a dose-dependent manner. The reduction in MMP favored mitochondrial apoptotic pathway which was further confirmed by determining the expression of Bax and Bcl-2. It was observed that MH downregulated the expression of Bax and upregulated the expression of MMP, ultimately leading to apoptosis of OSSC PE/CA-PJ41 cells. Additionally, MH also caused G2/M cell cycle arrest in a dose-dependent manner. CONCLUSION: Taken together, our results indicate that 4 Omethylhonokiol may prove a potential natural anticancer molecule against human oral carcinoma cells. PMID- 29332356 TI - beta-Aescin shows potent antiproliferative activity in osteosarcoma cells by inducing autophagy, ROS generation and mitochondrial membrane potential loss. AB - PURPOSE: Osteosarcoma is one of the frequent bone tumor affecting mainly children and is associated with considerable mortality. The limited availability of anticancer drugs and less efficacious treatment options have led to poor survival rates of patients with osteosarcoma. Therefore, there is need to look for more viable treatment options and against this backdrop, natural products may prove handy. Therefore the aim of the present study was to evaluate the anticancer activity of a natural product of plant origin, beta-aescin, against U2OS human osteosarcoma cells. METHODS: U205 human osteosarcoma cell line was used in this study. Antiproliferative activity was determined by MTT assay. Reactive oxygen species (ROS) and mitochondrial membrane potential (MMP) were evaluated by flow cytometry. Autophagy was detected by monodansylcadaverine (MDC) staining and immunofluorescence. Protein expression was examined by western blotting. RESULTS: The results indicated that beta-aescin showed significant anticancer activity against U2OS human osteosarcoma cells and exhibited an IC50 of 40 MUM. beta aescin treatment caused significant increase in ROS and decrease in the MMP. The anticancer effect of beta-aescin was found to be due mainly to autophagic cell death as evidenced from MDC staining and immunofluorescence. Moreover, beta aescin caused significant increase in the expression levels of LC3- II protein in U2OS osteosarcoma cells in a time and dosedependent manner. CONCLUSION: Taken together we propose that beta-aescin may prove a lead molecule in the management of osteosarcoma and deserves further research efforts. PMID- 29332357 TI - Management of B3 lesions of the breast: implementations of current recommendations in clinical practice. AB - PURPOSE: Stereotactic needle breast biopsy and vacuum assisted breast biopsy have replaced wide local excision in the last decades. B3 lesions of the breast represent a particular subgroup which is difficult to manage. The purpose of the present study was to present our experience with this specific type of lesions and to examine the conformity of Princess Margaret Hospital with current recommendations. METHODS: We retrospectively searched for patients that attended the Breast Clinic of Princess Alexandra Hospital during the period 2012-2015, and were diagnosed with B3 lesions during stereotactic needle core biopsy. RESULTS: In total 24 patients with B3 lesions were identified. Among them 6 women had synchronous malignant lesions and were excluded from our study. From the remaining, 8 patients presented with a single B3 lesion and 10 with multiple B3 lesions. Twelve of our patients underwent stereotactic vacuum-assisted biopsy (VAB). Ten patients underwent only core biopsy, 8 underwent only VAB biopsy and 3 lesions were investigated with both core biopsy and VAB. CONCLUSIONS: The findings of our study support the applicability of the current recommendations for the surgical management of B3 breast lesions. Core needle biopsies and VAB are equally efficacious with wide local excision for the differential diagnosis of lesions of uncertain malignant potential, thus limiting the necessity of open surgery. PMID- 29332358 TI - A study on basic demographic and disease characteristics of cancer-diagnosed Syrian refugees treated in the border city of Turkey, Sanliurfa; a hospital-based retrospective case series study. AB - PURPOSE: Turkey hosts around 3 million Syrian refugees which is more than any other country in the world. Along with some other adaptation issues like cultural, language, and economic difficulties, significant problems in managing medical problems, chronic diseases like cancer in particular, have to be fixed. However, there are few studies which explore main patient and clinicopathological characteristics in Syrian refugees with cancer. The purpose of this study was to highlight the aforementioned characteristics along with management issues after cancer diagnosis of these patients. METHODS: This study was designed as a hospital-based retrospective observational case-series study of 134 Syrian refugees cancer patients between 2015 and 2017. RESULTS: The patient median age was 47.5 years (range 18- 80). Out of the 134, 102 (76.1%) were female. The most common cancer types were breast (n=57, 42.5%) and gynecological cancers (n=14, 10.4%). The majority of patients were diagnosed at advanced stage (n=60, 44.8%). There were 91 (67.9%) and 43 (32.1%) patients admitted to our center from refugee camps and staying in a house, respectively. The median follow-up was 14 months (range 1-111) and 11 (8.2%) patients died. One and two-year survival rate of the whole group were 93% and 86%, respectively. There were 12 (9%) patients with grade 3-4 hematological and non-hematological toxicities. Neutropenia was the most common grade 3-4 toxicity (n=8, 6%). The patients staying in refugee camp (n 91) or in a house (n=43) finished all planned cycles of chemotherapy with a rate of 71% (n=65) and 79% (n=34), respectively. Statistical analysis failed to show significant relationship between the staying site (either camp or house), chemotherapy compliance rate, grade 3-4 toxicities with p=0.347 and p=0.09, respectively. CONCLUSION: Our results revealed that breast cancer and gynecological cancers were the most common cancer types which are good candidates for cancer screening. Unfortunately, the majority of patients had cancer diagnosed at advanced stage. However, after diagnosis they could reach all health facilities including surgical operation, radiotherapy, and systemic chemotherapy similar to Turkish cancer patients. Therefore, our results suggested that major problem for the Syrian refugees adapting them into national screening program which may resulted that cancer diagnosis at earlier stage with high cure rate. PMID- 29332359 TI - Novel molecular and metabolic aspects in osteosarcoma. AB - Osteosarcoma (OS) is the most frequent bone-forming malignancy in children and adolescents. Concerning its molecular landscape, there is no a direct relationship with a specific gene, but a combination of genetic events. A broad spectrum of activated oncogenes and downregulated suppressor genes has been already explored and considered crucial for its progressive pathogenesis. Mechanisms of gene deregulation include amplifications, point mutations, allelic losses and also epigenetic abnormalities such as aberrant promoter methylation. Although a significant progress in understanding the molecular nature of the OS has been achieved, its aggressive phenotype - characterized by high metastatic potential - remains unexplored. Novel targeted therapeutic strategies include monoclonal antibodies (mABs) and also tyrosine-kinase inhibitors (TKIs). Additionally, sophisticated and innovative diagnostic techniques, such as 18 fluorodeoxyglucose positron emission tomography plus CT (18F-FDG/PET/CT), provide critical data regarding its biological behavior. In the current paper, we present novel molecular and metabolic advances by analyzing OS genetic profile and biochemical microenvironment. PMID- 29332360 TI - From Fungus haematodes to Retinoblastoma. AB - Retinoblastoma is probably the only disease which received 40 different names until its official terminology which was adopted by the medical community in 1926. The official record of retinoblastoma was reported in 1597 by Petrus Pawius (ca. 1564-1617). The development of pathology during the 19th century gave to opportunity to clarify the histological characteristics of the disease. Although in the past retinoblastoma was considered a fatal disease, nowadays with modern treatment the prognosis is better. PMID- 29332361 TI - Bisphosphonate-associated orbital inflammation: is it class-specific side effect? PMID- 29332362 TI - Association of non-Hodgkin's lymphoma with advanced endometriosis. PMID- 29332363 TI - A brain ependymoma with psychiatric manifestation. PMID- 29332364 TI - Medical errors done with good intention, according to the believes of the time in the past: oncology should be evidence-based nowadays. PMID- 29332365 TI - Positional errors in linear accelerator based frameless cranial stereotaxy: A note of caution. PMID- 29332366 TI - Molecular landscape in laryngeal chondrosarcoma. PMID- 29332367 TI - The role of tyrosine kinase inhibitors (TKIs) as adjuvant treatment for renal cancer. Where do we stand today? PMID- 29332368 TI - "Pearl oyster": a new ultrasonographic sign of the regressed testicular tumor. PMID- 29332369 TI - Preliminary testing of anthracycline-induced cardiotoxicity in children. PMID- 29332370 TI - Hallmarks in the evolution of gynaecological cancer surgery: the famous pioneers in children. AB - At the beginning of the 19th century, gynaecological cancer, mainly cancer of the uterus and cervix was a dreadful, incurable affection. However, the popularization of the three fundamentals in surgery, anesthesia, asepsis and haemostasis, ushered the golden age of operative gynaecology. During that period distinguished surgeons/gynaecologists such as Friedrich Benjamin Osiander (1759 1822), Elias von Siebold (1775-1828) and Joseph-Claude-Anthelme Recamier (1774 1852) contributed to the development of the operative techniques, providing a therapeutic solution in gynaecological cancer. PMID- 29332372 TI - Measurement and modeling of indoor radon concentrations in residential buildings. AB - Radon, the primary constituent of natural radiation, is the second leading environmental cause of lung cancer after smoking. To confirm a relationship between indoor radon exposure and lung cancer, estimating cumulative levels of exposure to indoor radon for an individual or population is necessary. This study sought to develop a model for estimate indoor radon concentrations in Korea. Especially, our model and method may have wider application to other residences, not to specific site, and can be used in situations where actual measurements for input variables are lacking. In order to develop a model, indoor radon concentrations were measured at 196 ground floor residences using passive alpha track detectors between January and April 2016. The arithmetic mean (AM) and geometric mean (GM) means of indoor radon concentrations were 117.86+/-72.03 and 95.13+/-2.02 Bq/m3, respectively. Questionnaires were administered to assess the characteristics of each residence, the environment around the measuring equipment, and lifestyles of the residents. Also, national data on indoor radon concentrations at 7643 detached houses for 2011-2014 were reviewed to determine radon concentrations in the soil, and meteorological data on temperature and wind speed were utilized to approximate ventilation rates. The estimated ventilation rates and radon exhalation rates from the soil varied from 0.18 to 0.98/hr (AM, 0.59+/-0.17/hr) and 326.33 to 1392.77 Bq/m2/hr (AM, 777.45+/-257.39; GM, 735.67+/ 1.40 Bq/m2/hr), respectively. With these results, the developed model was applied to estimate indoor radon concentrations for 157 residences (80% of all 196 residences), which were randomly sampled. The results were in better agreement for Gyeonggi and Seoul than for other regions of Korea. Overall, the actual and estimated radon concentrations were in better agreement, except for a few low concentration residences. PMID- 29332373 TI - Use of adverse outcome pathways in chemical toxicity testing: potential advantages and limitations. AB - Amid revolutionary changes in toxicity assessment brought about by increasing regulation of chemicals, adverse outcome pathways (AOPs) have emerged as a useful framework to assess adverse effect of chemicals using molecular level effect, which aid in setting environmental regulation policies. AOPs are biological maps that describe mechanisms linking molecular initiating event to adverse outcomes (AOs) at an individual level. Each AOP consists of a molecular initiating event, key events, and an AO. AOPs use molecular markers to predict endpoints currently used in risk assessment, promote alternatives to animal model-based test methods, and provide scientific explanations for the effects of chemical exposures. Moreover, AOPs enhance certainty in interpreting existing and new information. The application of AOPs in chemical toxicity testing will help shift the existing paradigm of chemical management based on apical endpoints toward active application of in silico and in vitro data. PMID- 29332375 TI - Recurrent aphtous stomatitis. AB - Recurrent aphtous stomatitis (recurrent aphtous ulcers, canker sores) is the most common ulcerative disease of the oral mucosa. In this paper we presented the main clinical features, epidemiologic data, etiopathogenetic factors and clinical management, based on the current medical literature reports. PMID- 29332374 TI - Transcatheter aortic valve replacement in bicuspid aortic valve stenosis: where do we stand? AB - Bicuspid aortic valve is the most common congenital cardiac defect in adults, and symptom typically develops in adulthood. In the majority of cases, bicuspid aortic valve disease progress with ages and surgical aortic valve replacement is performed with excellent operative outcomes. However, with the relatively slow progression of disease, surgical aortic valve replacement is required in elderly patients but the surgical risk often deemed extremely high due to old age and multiple comorbidities. Transcatheter aortic valve replacement (TAVR) has evolved from a novel technology to an established therapy for intermediate- and high-risk patients with symptomatic severe aortic valve stenosis (AS). Numerous studies have demonstrated the safety and efficacy of TAVR, and more than 250,000 patients have been treated with this technology. Although randomized trials have established TAVR as the standard treatment, these trials excluded congenital bicuspid AS due to its unique morphological features. Nevertheless, the growing experience, accumulated knowledge, and advancements of new technology lead to the expand use of TAVR to other pathologies or other populations such as bicuspid AS. With integration of imaging multimodalities (computed tomography and echocardiography), the diagnosis and classification of bicuspid aortic valve has been changing. Due to unfavorable anatomic features of bicuspid AS, the outcomes of TAVR in bicuspid AS was suboptimal, particularly when using the first generation transcatheter valves. However, the newer-generation transcatheter valves significantly improved the outcomes of TAVR in bicuspid AS. Nonetheless, several issues still remain to be resolved. Given longer life expectancy in patients with bicuspid AS undergoing TAVR, durability of transcatheter valves is concerned. In addition, patients with bicuspid aortic valves often have concomitant dilatation of proximal part of ascending aorta (aortopathy), but limited data exist about the clinical prognosis of bicuspid aortic valve with concomitant aortopathy in elderly patients. Considering the expanding indication of TAVR to lower surgical risk and younger population, these issues should be evaluated in future studies. PMID- 29332378 TI - Role of psoriasis on subclinical cardiovascular disease. PMID- 29332379 TI - Correlation among atherosclerosis, cardiac and respiratory function in subjects with cystic fibrosis. PMID- 29332377 TI - Comparisons of three different doses of alirocumab application in patients with hypercholesterolemia: a meta-analysis. AB - INTRODUCTION: Low high-density lipoprotein cholesterol (HDL-C) and high low density lipoprotein cholesterol (LDL-C) levels are associated with incidence of cardiovascular disease (CVD). Alirocumab has been considered as an efficacious, safe and promising therapeutic modality for hypercholesterolemia. The purpose of this study is to compare the differences of the three different doses of alirocumab in patients with hypercholesterolemia. EVIDENCE ACQUISITION: Randomized controlled trials were identified from PubMed, EMBASE, PMC and Cochrane-library databases. The inter-comparison of different doses were performed by subgroups analysis. Meta-analyses were performed by the Review Manager 5.3 and STATA 13.0 software. EVIDENCE SYNTHESIS: A total of nine studies involving 3870 patients were included in this meta-analysis. Alirocumab administered at 75-150 mg every 2 weeks (Q2W) resulted in a greater percent change from baseline in LDL-C concentrations (MD, -55.17; 95% CI: -64.35 to 45.99; P<0.05), and HDL-C levels (MD, 7.70; 95% CI 5.94 to 9.46; P<0.05) than other two doses (300 mg every 4 weeks [Q4W], 150 mg every 2 weeks [Q2W]). There was no difference in achieving the treatment goal of LDL-C (<=1.8 mmol/L), in other serum lipid parameters (total cholesterol [TC], triglyceride [TG]), and in the incidence of adverse events. CONCLUSIONS: The results demonstrate that alirocumab at a dose of 75-150 mg Q2W should be preferred in patients with hypercholesterolemia. PMID- 29332376 TI - New and emerging treatments for metastatic Merkel cell carcinoma. PMID- 29332380 TI - Solvent Modulation of Aromatic Substituent Effects in Molecular Balances Controlled by CH-pi Interactions. AB - CH-pi aromatic interactions are ubiquitous in nature and are capable of regulating important chemical and biochemical processes. Solvation and aromatic substituent effects are known to perturb the CH-pi aromatic interactions. However, the nature by which the two factors influence one another is relatively unexplored. Here we demonstrate experimentally that there is a quantitative correlation between substituent effects in CH-pi interactions and the hydrogen bond acceptor constants of the solvating molecule. The CH-pi interaction energies were measured by the conformational study of a series of aryl-substituted molecular balances in which the conformational preferences depended on the relative strengths of the methyl and aryl CH-pi interactions in the folded and unfolded states, respectively. Due to the favorable methyl-aromatic interactions, the balances were found to exist predominantly in the folded state. The observed substituent effect in the conformational preferences of the balances was controlled by the explicit solvation/desolvation of the aryl proton. The interpretation of the conformational free energy as a function of substituents and solvation using Hunter's solvation model revealed that a linear relationship exists between the sensitivity of aromatic substituent effects (i.e., the rho values derived from Hammett plots) and the hydrogen-bond acceptor propensity (betas) of the solvent molecule: rho = 0.06betas - 0.04. PMID- 29332381 TI - Significant Role of Mg Stoichiometry in Designing High Thermoelectric Performance for Mg3(Sb,Bi)2-Based n-Type Zintls. AB - Complex structures with versatile chemistry provide considerable chemical tunability of the transport properties. Good thermoelectric materials are generally extrinsically doped semiconductors with optimal carrier concentrations, while charged intrinsic defects (e.g., vacancies, interstitials) can also adjust the carriers, even in the compounds with no apparent deviation from a stoichiometric nominal composition. Here we report that in Zintl compounds Mg3+xSb1.5Bi0.5, the carrier concentration can be tuned from p-type to n-type by simply altering the initial Mg concentration. The spherical-aberration-corrected (CS-corrected) high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and energy-dispersive X-ray spectroscopy (EDX) mapping analysis show that the excess Mg would form a separate Mg-rich phase after Mg vacancies have been essentially compensated. Additionally, a slight Te doping at Bi site on Mg3.025Sb1.5Bi0.5 has enabled good n-type thermoelectric properties, which is comparable to the Te-doped Mg-rich sample. The actual final composition of Mg3.025Sb1.5Bi0.5 analyzed by EPMA is also close to the stoichiometry Mg3Sb1.5Bi0.5, answering the open question whether excess Mg is prerequisite to realize exceptionally high n-type thermoelectric performance by different sample preparation methods. The motivation for this work is first to understand the important role of vacancy and then to guide for discovering more promising n-type Zintl thermoelectric materials. PMID- 29332382 TI - Cu2I2Se6: A Metal-Inorganic Framework Wide-Bandgap Semiconductor for Photon Detection at Room Temperature. AB - Cu2I2Se6 is a new wide-bandgap semiconductor with high stability and great potential toward hard radiation and photon detection. Cu2I2Se6 crystallizes in the rhombohedral R3m space group with a density of d = 5.287 g.cm-3 and a wide bandgap Eg of 1.95 eV. First-principles electronic band structure calculations at the density functional theory level indicate an indirect bandgap and a low electron effective mass me* of 0.32. The congruently melting compound was grown in centimeter-size Cu2I2Se6 single crystals using a vertical Bridgman method. A high electric resistivity of ~1012 Omega.cm is readily achieved, and detectors made of Cu2I2Se6 single crystals demonstrate high photosensitivity to Ag Kalpha X rays (22.4 keV) and show spectroscopic performance with energy resolutions under 241Am alpha-particles (5.5 MeV) radiation. The electron mobility is measured by a time-of-flight technique to be ~46 cm2.V-1.s-1. This value is comparable to that of one of the leading gamma-ray detector materials, TlBr, and is a factor of 30 higher than mobility values obtained for amorphous Se for X-ray detection. PMID- 29332383 TI - Developing Pantetheinase-Resistant Pantothenamide Antibacterials: Structural Modification Impacts on PanK Interaction and Mode of Action. AB - Pantothenamides (PanAms) are analogues of pantothenate, the biosynthetic precursor of coenzyme A (CoA), and show potent antimicrobial activity against several bacteria and the malaria parasite in vitro. However, pantetheinase enzymes that normally degrade pantetheine in human serum also act on the PanAms, thereby reducing their potency. In this study, we designed analogues of the known antibacterial PanAm N-heptylpantothenamide (N7-Pan) to be resistant to pantetheinase by using three complementary structural modification strategies. We show that, while two of these are effective in imparting resistance, the introduced modifications have an impact on the analogues' interaction with pantothenate kinase (PanK, the first CoA biosynthetic enzyme), which acts as a metabolic activator and/or target of the PanAms. This, in turn, directly affects their mode of action. Importantly, we discover that the phosphorylated version of N7-Pan shows pantetheinase resistance and antistaphylococcal activity, providing a lead for future studies in the ongoing search of PanAm analogues that show in vivo efficacy. PMID- 29332384 TI - Structure of Lipid Nanoparticles Containing siRNA or mRNA by Dynamic Nuclear Polarization-Enhanced NMR Spectroscopy. AB - Here, we show how dynamic nuclear polarization (DNP) NMR spectroscopy experiments permit the atomic level structural characterization of loaded and empty lipid nanoparticles (LNPs). The LNPs used here were synthesized by the microfluidic mixing technique and are composed of ionizable cationic lipid (DLin-MC3-DMA), a phospholipid (distearoylphosphatidylcholine, DSPC), cholesterol, and poly(ethylene glycol) (PEG) (dimyristoyl phosphatidyl ethanolamine (DMPE)-PEG 2000), as well as encapsulated cargoes that are either phosphorothioated siRNA (50 or 100%) or mRNA. We show that LNPs form physically stable complexes with bioactive drug siRNA for a period of 94 days. Relayed DNP experiments are performed to study 1H-1H spin diffusion and to determine the spatial location of the various components of the LNP by studying the average enhancement factors as a function of polarization time. We observe a striking feature of LNPs in the presence and in the absence of encapsulating siRNA or mRNA by comparing our experimental results to numerical spin-diffusion modeling. We observe that LNPs form a layered structure, and we detect that DSPC and DMPE-PEG 2000 lipids form a surface rich layer in the presence (or absence) of the cargoes and that the cholesterol and ionizable cationic lipid are embedded in the core. Furthermore, relayed DNP 31P solid-state NMR experiments allow the location of the cargo encapsulated in the LNPs to be determined. On the basis of the results, we propose a new structural model for the LNPs that features a homogeneous core with a tendency for layering of DSPC and DMPE-PEG at the surface. PMID- 29332385 TI - Highly Sensitive Ratiometric Self-Assembled Micellar Nanoprobe for Nitroxyl and Its Application In Vivo. AB - Nitroxyl (HNO) is a derivative of nitric oxide (NO) that plays an essential role in various biological and pharmacological events. Until now, the in situ trapping and specific detection of HNO in living samples is still challenging. In this project, we fabricated a novel BODIPY-based micellar nanoprobe for monitoring nitroxyl in vitro and in vivo in ratiometric mode in aqueous solution. The probe (P-BODIPY-N) contains an asymmetrical BODIPY dye for fluorescent signaling and a diphenylphosphinobenzoyl as the trigger moiety; then we encapsulated P-BODIPY-N into the hydrophobic interior of an amphiphilic copolymer (mPEG-DSPE) and prepared a novel BODIPY-based micellar nanoprobe: NP-BODIPY-N. As far as we know, this probe is the first reported ratiometric fluorescent nanoprobe for HNO, which exhibits ultrasensitivity, high selectivity, and good biocompatibility. Above all, this nanoprobe shows favorable cellular uptaken and was successfully used to detect intracellular HNO released by Angeli's salt in living cells and zebrafish larvae. These results indicate that our newly designed nanoprobe will provide a promising tool for the studies of HNO in living system. PMID- 29332386 TI - Multiple yet Controllable Photoswitching in a Single AIEgen System. AB - Seeking new methods to obtain elaborate artificial on-demand photoswitching with multiple functionalities remains challenging. Most of the systems reported so far possess only one specific function and their nonemissive nature in the aggregated state inevitably limit their applications. Herein, a tailored cyanostilbene-based molecule with aggregation-induced emission characteristic was synthesized and was found to exhibit efficient, multiple and controllable photoresponsive behaviors under different conditions. Specifically, three different reactions were involved: (i) reversible Z/E isomerization under room light and thermal treatment in CH3CN, (ii) UV-induced photocyclization with a concomitant dramatic fluorescence enhancement, and (iii) regio- and stereoselective photodimerization in aqueous medium with microcrystal formation. Experimental and theoretical analyses gave visible insights and detailed mechanisms of the photoreaction processes. Fluorescent 2D photopattern with enhanced signal-to-background ratio was fabricated based on the controllable "turn-on" and "turn-off" photobehaviors in different states. The present study thus paves an easy yet efficient way to construct smart multiphotochromes for unique applications. PMID- 29332388 TI - Immersion and Contact Efflorescence Induced by Mineral Dust Particles. AB - The phase state of inorganic salt aerosols impacts their properties, including the ability to undergo hygroscopic growth, catalyze heterogeneous reactions, and act as cloud condensation nuclei. Here, we report the first observation of contact efflorescence by mineral dust aerosol. The efflorescence of aqueous ammonium sulfate ((NH4)2SO4) and sodium chloride (NaCl) droplets by contact with three types of mineral dust particles (illite, montmorillonite, and NX illite), were examined using an optical levitation chamber. Immersion mode efflorescence was also studied for comparison. We find that in the presence of mineral dust particles, crystallization occurred at a higher relative humidity (RH) when compared to the homogeneous phase transition. Additionally, crystallization by contact mode efflorescence occurred at a higher RH than the corresponding immersion mode. Crystallization efficiencies in the contact mode exhibited an ion specific trend consistent with the Hoffmeister series. Estimates for lifetimes of a salt droplet to collide with dust particles suggests that collisions between the two aerosol types are likely to occur before the salt aerosol is removed by other atmospheric processes. Such collisions could then lead to the crystallization of salt droplets that would otherwise have remained liquid, changing the overall impact that salt aerosols have on atmospheric chemistry and climate. PMID- 29332389 TI - Direct Catalytic Asymmetric Mannich-Type Reaction en Route to alpha-Hydroxy-beta amino Acid Derivatives. AB - A direct catalytic Mannich-type reaction of alpha-oxygen-functionalized amides was achieved. The use of 7-azaindoline amide was crucial to facilitate direct enolization and subsequent stereoselective addition to imines in a cooperative catalytic system comprising a soft Lewis acid and Bronsted base. The operationally simple room-temperature protocol furnished a syn-Mannich adduct with high stereoselectivity. Divergent functional group transformation of the amide moiety of the product allowed for expeditious access to enantioenriched syn configured alpha-hydroxy-beta-amino carboxylic acid derivatives, highlighting the synthetic utility of the present catalysis. PMID- 29332387 TI - Proteome-Wide Characterization of Phosphorylation-Induced Conformational Changes in Breast Cancer. AB - Because of the close link between protein function and protein folding stability, knowledge about phosphorylation-induced protein folding stability changes can lead to a better understanding of the functional effects of protein phosphorylation. Here, the stability of proteins from rates of oxidation (SPROX) and limited proteolysis (LiP) techniques are used to compare the conformational properties of proteins in two MCF-7 cell lysates including one that was and one that was not dephosphorylated with alkaline phosphatase. A total of 168 and 251 protein hits were identified with dephosphorylation-induced stability changes using the SPROX and LiP techniques, respectively. Many protein hits are previously known to be differentially phosphorylated or differentially stabilized in different human breast cancer subtypes, suggesting that the phosphorylation induced stability changes detected in this work are disease related. The SPROX hits were enriched in proteins with aminoacyl-tRNA ligase activity. These enriched protein hits included many aminoacyl-tRNA synthetases (aaRSs), which are known from previous studies to have their catalytic activity modulated by phosphorylation. The SPROX results revealed that the magnitudes of the destabilizing effects of dephoshporylation on the different aaRSs were directly correlated with their previously reported aminoacylation activity change upon dephosphorylation. This substantiates the close link between protein folding and function. PMID- 29332390 TI - High Drug Loading and Sub-Quantitative Loading Efficiency of Polymeric Micelles Driven by Donor-Receptor Coordination Interactions. AB - Polymeric micelles are extensively used for the delivery of hydrophobic drugs, which, however, suffer from unsatisfactory drug loading, colloidal uniformity, formulation stability, and drug release. Herein, we demonstrate a convenient strategy to prepare micelles with ultrahigh drug loading via the incorporation of polymer-drug coordination interactions. An amphiphilic copolymer containing pendant phenylboronic acid as electron acceptor unit was synthesized, which afforded donor-acceptor coordination with doxorubicin to obtain micelles with ultrahigh drug loading (~50%), nearly quantitative loading efficiency (>95%), uniform size, and colloidal stability. Besides, the encapsulated drug can be effectively and selectively released in response to the high reactive oxygen species levels in cancer cells, which potentiated the anticancer efficacy and reduced systemic toxicity. Apart from doxorubicin, the current platform could be extended to other drugs with electron-donating groups (e.g., epirubicin and irinotecan), rendering a simple and robust strategy for enabling high drug loading in polymeric micelles and cancer-specific drug release. PMID- 29332391 TI - Interconversion of Methyltropyl and Xylyl Radicals: A Pathway Unavailable to the Benzyl-Tropyl Rearrangement. AB - The products of an electrical discharge containing toluene are interrogated using resonance-enhanced multiphoton ionization and laser-induced fluorescence spectroscopies. A previously unreported electronic spectrum recorded at m/z = 105, with a putative origin band at 26053 cm-1, is assigned to methyltropyl radical, which appears to be a major product of the toluene discharge, plausibly arising from CH insertion. All three o-, m-, and p-xylyl isomers are also identified. These isomers are detected in electrical discharges containing various xylenes, where it is also found that interconversion occurs: A discharge of o-xylene produces some m-xylyl; a discharge of m-xylene produces some o-xylyl; and a discharge of p-xylene produces all three isomers. No alpha-methylbenzyl was detected, but styrene was. These observations are supported by state-of-the-art quantum chemical calculations, which reveal an isomerization pathway between methyltropyl and xylyl radicals for which there is no analogue in the canonical tropyl-benzyl isomerization. PMID- 29332392 TI - Transfer Hydrogenation of Aldehydes and Ketones with Isopropanol under Neutral Conditions Catalyzed by a Metal-Ligand Bifunctional Catalyst [Cp*Ir(2,2' bpyO)(H2O)]. AB - A Cp*Ir complex bearing a functional bipyridonate ligand [Cp*Ir(2,2'-bpyO)(H2O)] was found to be a highly efficient and general catalyst for transfer hydrogenation of aldehydes and chemoselective transfer hydrogenation of unsaturated aldehydes with isopropanol under neutral conditions. It was noteworthy that many readily reducible or labile functional groups such as nitro, cyano, ester, and halide did not undergo any change under the reaction conditions. Furthermore, this catalytic system exhibited high activity for transfer hydrogenation of ketones with isopropanol. Notably, this research exhibited new potential of metal-ligand bifunctional catalysts for transfer hydrogenation. PMID- 29332393 TI - Impact of Nonideal Nanoparticles on X-ray Photoelectron Spectroscopic Quantitation: An Investigation Using Simulation and Modeling of Gold Nanoparticles. AB - Quantitative X-ray photoelectron spectroscopic (XPS) analysis combined with spectral modeling of photoelectrons can be valuable while investigating the surface chemistry of nanoparticles (NPs) with different morphologies. Herein, with the use of NIST Simulation of Electron Spectra for Surface Analysis (SESSA), a comparative analysis of experimental and simulated photoelectron peak intensities in gold nanoparticles (AuNPs) of different morphologies is presented. Three sets of supported AuNPs with different morphologies were selected from a series of as synthesized Au-TiO2 catalyst samples. Using transmission electron microscopy (TEM) analyzed morphological information on the AuNPs as input model parameters in SESSA, XPS spectra were generated from the respective input NP morphologies. A degree of greater mismatch between SESSA simulated and experimental XPS spectra was observed while using the TEM obtained average diameter of the nanoparticles. The degree of mismatch lowered when the true nonspherical shape of the nanoparticles as obtained from TEM images was taken into account for the simulation. This demonstrates the impact of surface morphology on the XPS peak intensities which needs to be incorporated to obtain precise quantified information from the supported nanoparticles. This work demonstrates the applicability of SESSA in combination with experimental XPS and TEM measurements for precise quantification of XPS spectra from complex, nonideal shaped nanoparticles. This study can be extended to include a broad range of nanoparticles with ideal or nonideal geometries, thus providing a simple method to utilize quantitative XPS analysis to a wide range of nanomaterials. PMID- 29332394 TI - Compositional Dependence of Solubility/Retention of Molybdenum Oxides in Aluminoborosilicate-Based Model Nuclear Waste Glasses. AB - Molybdenum oxides are an integral component of the high-level waste streams being generated from the nuclear reactors in several countries. Although borosilicate glass has been chosen as the baseline waste form by most of the countries to immobilize these waste streams, molybdate oxyanions (MoO42-) exhibit very low solubility (~1 mol %) in these glass matrices. In the past three to four decades, several studies describing the compositional and structural dependence of molybdate anions in borosilicate and aluminoborosilicate glasses have been reported in the literature, providing a basis for our understanding of fundamental science that governs the solubility and retention of these species in the nuclear waste glasses. However, there are still several open questions that need to be answered to gain an in-depth understanding of the mechanisms that control the solubility and retention of these oxyanions in glassy waste forms. This article is focused on finding answers to two such questions: (1) What are the solubility and retention limits of MoO3 in aluminoborosilicate glasses as a function of chemical composition? (2) Why is there a considerable increase in the solubility of MoO3 with incorporation of rare-earth oxides (for example, Nd2O3) in aluminoborosilicate glasses? Accordingly, three different series of aluminoborosilicate glasses (compositional complexity being added in a tiered approach) with varying MoO3 concentrations have been synthesized and characterized for their ability to accommodate molybdate ions in their structure (solubility) and as a glass-ceramic (retention). The contradictory viewpoints (between different research groups) pertaining to the impact of rare-earth cations on the structure of aluminoborosilicate glasses are discussed, and their implications on the solubility of MoO3 in these glasses are evaluated. A novel hypothesis explaining the mechanism governing the solubility of MoO3 in rare earth containing aluminoborosilicate glasses has been proposed. PMID- 29332395 TI - Structure and Reactivity of Half-Sandwich Rh(+3) and Ir(+3) Carbene Complexes. Catalytic Metathesis of Azobenzene Derivatives. AB - Traditional rhodium carbene chemistry relies on the controlled decomposition of diazo derivatives with [Rh2(OAc)4] or related dinuclear Rh(+2) complexes, whereas the use of other rhodium sources is much less developed. It is now shown that half-sandwich carbene species derived from [Cp*MX2]2 (M = Rh, Ir; X = Cl, Br, I, Cp* = pentamethylcyclopentadienyl) also exhibit favorable application profiles. Interestingly, the anionic ligand X proved to be a critical determinant of reactivity in the case of cyclopropanation, epoxide formation and the previously unknown catalytic metathesis of azobenzene derivatives, whereas the nature of X does not play any significant role in -OH insertion reactions. This perplexing disparity can be explained on the basis of spectral and crystallographic data of a representative set of carbene complexes of this type, which could be isolated despite their pronounced electrophilicity. Specifically, the donor/acceptor carbene 10a derived from ArC(?N2)COOMe and [Cp*RhCl2]2 undergoes spontaneous 1,2 migratory insertion of the emerging carbene unit into the Rh-Cl bond with formation of the C-metalated rhodium enolate 11. In contrast, the analogous complexes 10b,c derived from [Cp*RhX2]2 (X = Br, I) as well as the iridium species 13 and 14 derived from [Cp*IrCl2]2 are sufficiently stable and allow true carbene reactivity to be harnessed. These complexes are competent intermediates for the catalytic metathesis of azobenzene derivatives, which provides access to alpha-imino esters that would be difficult to make otherwise. Rather than involving metal nitrenes, the reaction proceeds via aza-ylides that evolve into diaziridines; a metastable compound of this type has been fully characterized. PMID- 29332396 TI - Electrochemical System for the Study of Trans-Plasma Membrane Electron Transport in Whole Eukaryotic Cells. AB - The study of trans-plasma membrane electron transport (tPMET) in oncogenic systems is paramount to the further understanding of cancer biology. The current literature provides methodology to study these systems that hinges upon mitochondrial knockout genotypes in conjunction with cell surface oxygen consumption, or the detection of an electron acceptor using colorimetric methods. However, when using an iron redox based system to probe tPMET, there is yet to be a method that allows for the simultaneous quantification of iron redox states while providing an exceptional level of sensitivity. Developing a method to simultaneously analyze the redox state of a reporter molecule would give advantages in probing the underlying biology. Herein, we present an electrochemical based method that allows for the quantification of both ferricyanide and ferrocyanide redox states to a highly sensitive degree. We have applied this system to a novel application of assessing oncogenic cell-driven iron reduction and have shown that it can effectively quantitate and identify differences in iron reduction capability of three lung epithelial cell lines. PMID- 29332397 TI - Unconventional Fragment Usage Enables a Concise Total Synthesis of (-) Callyspongiolide. AB - An asymmetric synthesis of (-)-callyspongiolide is described. The route builds the macrolide domain atypically from a disaccharide and a monoterpene without passing through a seco-acid. Chiral iridium catalysis selectively joins fragments. Subsequent degradation of an imbedded butyrolactone via perhemiketal fragmentation affords a stereo- and regio-defined homoallylic alcohol that is engaged directly in a carbonylative macrolactonization. Further elaboration of the polyunsaturated appendage provides the natural product in a particularly direct and flexible manner. PMID- 29332398 TI - High-Performance Thermoelectric Bulk Colusite by Process Controlled Structural Disordering. AB - High-performance thermoelectric bulk sulfide with the colusite structure is achieved by controlling the densification process and forming short-to-medium range structural defects. A simple and powerful way to adjust carrier concentration combined with enhanced phonon scattering through point defects and disordered regions is described. By combining experiments with band structure and phonons calculations, we elucidate, for the first time, the underlying mechanism at the origin of intrinsically low thermal conductivity in colusite samples as well as the effect of S vacancies and antisite defects on the carrier concentration. Our approach provides a controlled and scalable method to engineer high power factors and remarkable figures of merit near the unity in complex bulk sulfide such as Cu26V2Sn6S32 colusites. PMID- 29332399 TI - ENDOR-Induced EPR of Disordered Systems: Application to X-Irradiated Alanine. AB - The electron paramagnetic resonance (EPR) spectra of radiation-induced radicals in organic solids are generally composed of multiple components that largely overlap due to their similar weak g anisotropy and a large number of hyperfine (HF) interactions. Such properties make these systems difficult to study using standard cw EPR spectroscopy even in single crystals. Electron-nuclear double resonance (ENDOR) spectroscopy is a powerful and widely used complementary technique. In particular, ENDOR-induced EPR (EIE) experiments are useful for separating the overlapping contributions. In the present work, these techniques were employed to study the EPR spectrum of stable radicals in X-irradiated alanine, which is widely used in dosimetric applications. The principal values of all major proton HF interactions of the dominant radicals were determined by analyzing the magnetic field dependence of the ENDOR spectrum at 50 K, where the rotation of methyl groups is frozen. Accurate simulations of the EPR spectrum were performed after the major components were separated using an EIE analysis. As a result, new evidence in favor of the model of the second dominant radical was obtained. PMID- 29332400 TI - Multiscale Kinetic Modeling Reveals an Ensemble of Cl-/H+ Exchange Pathways in ClC-ec1 Antiporter. AB - Despite several years of research, the ion exchange mechanisms in chloride/proton antiporters and many other coupled transporters are not yet understood at the molecular level. Here, we present a novel approach to kinetic modeling and apply it to ion exchange in ClC-ec1. Our multiscale kinetic model is developed by (1) calculating the state-to-state rate coefficients with reactive and polarizable molecular dynamics simulations, (2) optimizing these rates in a global kinetic network, and (3) predicting new electrophysiological results. The model shows that the robust Cl:H exchange ratio (2.2:1) can indeed arise from kinetic coupling without large protein conformational changes, indicating a possible facile evolutionary connection to chloride channels. The E148 amino acid residue is shown to couple chloride and proton transport through protonation-dependent blockage of the central anion binding site and an anion-dependent pKa value, which influences proton transport. The results demonstrate how an ensemble of different exchange pathways, as opposed to a single series of transitions, culminates in the macroscopic observables of the antiporter, such as transport rates, chloride/proton stoichiometry, and pH dependence. PMID- 29332401 TI - Proteomic Profiling of Leishmania donovani Promastigote Subcellular Organelles. AB - To facilitate a greater understanding of the biological processes in the medically important Leishmania donovani parasite, a combination of differential and density-gradient ultracentrifugation techniques were used to achieve a comprehensive subcellular fractionation of the promastigote stage. An in-depth label-free proteomic LC-MS/MS analysis of the density gradients resulted in the identification of ~50% of the Leishmania proteome (3883 proteins detected), which included ~645 integral membrane proteins and 1737 uncharacterized proteins. Clustering and subcellular localization of proteins was based on a subset of training Leishmania proteins with known subcellular localizations that had been determined using biochemical, confocal microscopy, or immunoelectron microscopy approaches. This subcellular map will be a valuable resource that will help dissect the cell biology and metabolic processes associated with specific organelles of Leishmania and related kinetoplastids. PMID- 29332402 TI - Monitoring Antimicrobial Mechanisms of Surface-Immobilized Peptides in Situ. AB - Antimicrobial peptides (AMPs) in free solution can kill bacteria by disrupting bacterial cell membranes. Their modes of action have been extensively studied, and various models ranging from pore formation to carpet-like mechanisms were proposed. Surface-immobilized AMPs have been used as coatings to kill bacteria and as sensors to capture bacteria, but the interaction mechanisms of surface immobilized AMPs and bacteria are not fully understood. In this research, an analytical platform, sum frequency generation (SFG) microscope, which is composed of an SFG vibrational spectrometer and a fluorescence microscope, was used to probe molecular interactions between surface-immobilized AMPs and bacteria in situ in real time at the solid/liquid interface. SFG probed the molecular structure of surface-immobilized AMPs while interacting with bacteria, and fluorescence images of dead bacteria were monitored as a function of time during the peptide-bacteria interaction. It was believed that upon bacteria contact, the surface-immobilized peptides changed their orientation and killed bacteria. This research demonstrated that the SFG microscope platform can examine the structure and function (bacterial killing) at the same time in the same sample environment, providing in-depth understanding on the structure-activity relationships of surface-immobilized AMPs. PMID- 29332403 TI - A rare complication after colonoscopy: a splenic rupture. AB - Colonoscopy is the gold standard for the study of colorectal pathology. Splenic injury is a rare but potentially fatal complication to consider. Therefore, we present two cases whose management was different and we show their clinical presentation, their diagnosis and their treatment in order to recognize this complication early to establish early treatment. PMID- 29332404 TI - Bowel obstruction secondary to deep infiltrating endometriosis of the ileum. AB - Deep infiltrating endometriosis (DIE) of the ileum is an uncommon lesion that may be severe in its clinical presentation. Its diagnosis is challenging in the absence of a gynecological history of endometriosis and because of its anatomical location. We read the article by Sanchez, Candel, and Albarracin, and now report an additional case that was managed urgently. PMID- 29332405 TI - Endoscopic ultrasound-guided choledochoduodenostomy after a failed or impossible ERCP. AB - INTRODUCTION: endoscopic ultrasound-guided biliary drainage (EUS-BD) is an alternative to percutaneous trans-hepatic biliary drainage (PTBD) in cases of failed endoscopic retrograde cholangiopancreatography (ERCP). METHODS: this is a retrospective description of six cases of endoscopic ultrasound-guided biliary drainage via choledochoduodenostomy (EUCD), as well as the clinical characteristics, endoscopic procedure, complications and monitoring. RESULTS: all cases had malignant distal biliary obstruction. The procedure was concluded with good drainage in four out of six patients. Two late complications were recorded that were caused by stent migration and there were no deaths related with the procedure. The average monitoring period was six months. CONCLUSIONS: EUCD can be considered as a valid therapeutic choice in some selected cases and when performed by a team of expert endoscopists in cases of failed ERCP drainage or as an alternative to PTBD. However, the procedure has some associated complications. PMID- 29332406 TI - The morphological and functional diagnosis of a rare entity: lipomatous pseudohypertrophy of the pancreas. AB - Lipomatous pseudohypertrophy of the pancreas is a rare entity characterized by a replacement, focal or diffuse, of the normal pancreatic tissue by mature fatty tissue. Its definitive diagnosis is made based on histopathologic analysis. Nevertheless, typical imaging findings can allow a non-invasive diagnosis and help its clinical approach. PMID- 29332407 TI - Nutritional deficiency during colonoscopy preparation: the forgotten iatrogeny. AB - BACKGROUND AND AIMS: bowel preparation for colonoscopy induces a semi-fasting state, with a potential negative impact on fragile patients. The present study aims to quantify nutritional deficiency during colonoscopy preparation. METHODS: this was an observational and cross-sectional study. A convenience sample was obtained that included adults that underwent colonoscopy after bowel preparation with Klean-Prep(r) according to the center protocol. Anthropometric evaluation was performed and nutritional deficiency was calculated via the quantification of energy and protein intake during the 48 hours prior to the examination which was compared with the individuals' needs. The association between nutritional deficiency with the quality of bowel preparation, age and status (hospitalized/ambulatory) was evaluated. RESULTS: the study included 131 patients aged 21-91 years (mean 63.6 +/- 13.2 years); 73 cases were male. Malnutrition reached 67.2% using specific anthropometric tools. A median preparation quality of six points was found when the Boston Bowel Preparation Scale was considered. The mean intake 48 hours prior to the procedure was 1,795 kcal and 100 g of protein. A daily energy intake of less than 50% of the individual needs was observed in 88 patients and less than 25% in 29 cases. The mean energy and protein deficiency were 59% (p < 0.01) and 45% (p < 0.01), and there was no correlation with preparation quality (p > 0.05). Nutritional defiency is similar in hospitalized and ambulatory patients (p > 0.05), but higher in older individuals (p = 0.04). CONCLUSIONS: nutritional deficiency during colonoscopy preparation was significant, more so in older patients, and there was no correlation with the quality of bowel preparation. We conclude that bowel preparation regimens should be reformulated with an improved nutritional intake and the inclusion of nutritional supplements without residues. PMID- 29332408 TI - Effect of induction chemotherapy on the quality-of-life in patients with advanced stage tongue cancer by a prospective study. AB - Abstracts Objective To assess how induction chemotherapy affects the quality-of life (QoL) in patients with advanced tongue cancer. Methods This prospective study included patients who were diagnosed with advanced tongue cancer. Each patient was asked to complete the University of Washington QoL (UW-QoL), version 4, questionnaire preoperatively and at 12 months after surgery. Patients were divided into two groups based on whether or not they received induction chemotherapy. Results Of the 192 patients included in the analysis, 145 patients had received induction chemotherapy. There were no significant differences regarding age, sex, tumour stage, node stage, flap reconstruction, tumour resection range and radiotherapy between the two groups. The mean total hospital cost was significantly higher in patients who underwent induction chemotherapy compared with those who did not (68 000 versus 44 000 Yuan Renminbi, respectively). The two groups had similar pre-treatment and post-treatment composite QoL scores and in the 12 individual domains. Conclusion Induction chemotherapy had a limited effect on postoperative QoL in patients with advanced tongue cancers, but it cost significantly more to administer. PMID- 29332409 TI - High-dose ulinastatin improves postoperative oxygenation in patients undergoing aortic valve surgery with cardiopulmonary bypass: A retrospective study. AB - Objective To determine whether pre-treatment with high-dose ulinastatin provides enhanced postoperative oxygenation in patients who have undergone aortic valve surgery with moderate hypothermic cardiopulmonary bypass (CPB). Methods Patients who underwent aortic valve surgery with moderate hypothermic CPB were retrospectively evaluated. In total, 94 of 146 patients were included. The patients were classified into one of two groups: patients in whom ulinastatin (10,000 U/kg followed by 5,000 U/kg/h) was administered during CPB (Group U, n = 38) and patients in whom ulinastatin was not administered (Group C, n = 56). The PaO2/FiO2 ratio was calculated at the following time points: before CPB (pre CPB), 2 h after weaning from CPB (post-CPB), and 6 h after arrival to the intensive care unit (ICU-6). The incidence of a low PaO2/FiO2 ratio was also compared among the time points. Results Group U showed a significantly higher PaO2/FiO2 ratio (F(4, 89.0) = 657.339) and a lower incidence of lung injury (PaO2/FiO2 ratio < 300) than Group C at the post-CPB and ICU-6 time points. Conclusion High-dose ulinastatin improved pulmonary oxygenation after CPB and in the early stages of the ICU stay in patients undergoing aortic valve surgery with CPB. PMID- 29332410 TI - Myocardial strain/stress changes identified by echocardiography may reveal early sepsis-induced myocardial dysfunction. AB - Objective To perform early assessment of sepsis-induced myocardial dysfunction (SIMD) using strain/stress echocardiography. Methods A canine model of SIMD was established using intravenous injection of lipopolysaccharide (LPS, 2 mg/kg). Thirteen dogs were included, comprising an LPS-treated SIMD group ( n = 7) and saline control group ( n = 6). SIMD was assessed at various time-points using cardiac measurements including haemodynamics and echocardiography. Results Systolic and radial ventricular wall stress and circular ventricular wall stress (WSsc) were significantly lower in the sepsis group versus the control group at all time-points. Logistic regression analysis revealed an inverse correlation between stress rate of the front-posterior and bottom wall and left ventricle systolic wall strength. In contrast, a positive correlation was found between the mean velocity of circumferential fibre shortening (mVCF) or heart rate-adjusted mVCF (RVCF) and WSsc. Using regression equations, predicted values for mVCF and RVCF in animals with sepsis were significantly higher than measured values at 4- 5- and 6-h time-points. Conclusions These findings will further the understanding of pathophysiological alterations in SIMD at the early stage of sepsis, and suggest that strain rate may reflect the nature of myocardial contractility. PMID- 29332412 TI - [Investigation of the burnout syndrome among the employees of the Department of Emergency Medicine at the University of Szeged]. AB - INTRODUCTION: Burnout has been described as a growing problem amongst healthcare workers. Emergency department staffs experience the burden of stress day by day, yet only a few studies have examined their burnout. AIM: In this study we wanted to investigate the burnout and its relations to other variables amongst the employees of the Department of Emergency Medicine in Szeged. METHOD: Cross sectional design utilizing a self-administered questionnaire was used to collect data from the staff of the Department. Burnout was measured using the Maslach Burnout Inventory. RESULTS: Burnout is considerably prevalent among the workers of the Emergency Department, especially nurses and physicians. The study found negative relation between burnout and age, number of children, number of years in the healthcare system, number of physical symptoms, social support and psychological immune system. Being single was a risk factor. CONCLUSIONS: The risks and protective factors found to be associated with burnout in this study might help to set up institutional prevention and intervention strategies. Orv Hetil. 2018; 159(3): 113-118. PMID- 29332411 TI - beta1 integrin-mediated multicellular resistance in hepatocellular carcinoma through activation of the FAK/Akt pathway. AB - Objective To explore the role and mechanism of beta1 integrin in the regulation of multicellular drug resistance in hepatocellular carcinoma (HCC). Methods This in vitro study used a liquid overlay technique to obtain multicellular spheroids of two human HCC cell lines, HepG2 and Bel-7402. The morphology of the spheroids was observed by optical and electron microscopy. The effects of exposure to 5 fluorouracil (5-FU) and cisplatin (CDDP) on cell proliferation and the induction of apoptosis were assessed in monolayer cells and multicellular spheroids. The levels of beta1 integrin and the effects on the focal adhesion kinase (FAK)/protein kinase B (Akt) pathway were evaluated using Western blot analysis, immunofluorescence and flow cytometry. The role of beta1 integrin was confirmed by using an inhibitory antibody. Results Cell proliferation inhibition and cell apoptosis induced by 5-FUl and CDDP were abrogated in multicellular spheroids compared with monolayer cells. There were high levels of beta1 integrin in multicellular spheroids. beta1 integrin inhibitory antibody prevented the formation of multicellular spheroids, coupled with a significant increase in proliferation inhibition and apoptosis induction. beta1 integrin inhibitory antibody effectively suppressed activation of both FAK and Akt in multicellular spheroids. Conclusions beta1 integrin mediated multicellular drug resistance through the FAK/Akt pathway in HCC spheroids. PMID- 29332414 TI - [Interatrial block and its clinical relevance. Renaissance of an ECG change]. AB - Interatrial block involves conduction delay between the right and left atria during sinus rhythm. The review describes the classification, pathomechanism and clinical significance of this under-recognised ECG sign, nominated Bayes syndrome. The presented ECGs help to recognise the differentypes of interatrial blocks. Orv Hetil. 2018; 159(3): 91-95. PMID- 29332415 TI - [Prognostic importance of albumin in oncology]. AB - Diminished serum albumin level can be observed in inflammatory processes. Serum albumin level also reduces - irrespective of the presence of malnutrition - in locally advanced or metastatic malignancies. Low serum albumin level may have an influence also on the results of anticancer therapy (e.g., drug pharmacokinetics, adverse drug reactions). Extensive data of the literature and empirical experience prove the better prognosis of patients involved in nutritional therapy. Based on the most relevent data of the literature, the authors summarize the studies which have revealed the close correlation between the baseline serum albumin level and the prognosis of malignant diseases. Orv Hetil. 2018; 159(3): 96-106. PMID- 29332416 TI - [Autoimmune encephalitis: possibilities in the laboratory investigation]. AB - INTRODUCTION: The role of autoimmune responses against central nervous system (CNS) antigens in encephalitis presenting with non-classified neurologic or psychiatric symptoms has been appreciated in the past decade. Paraneoplastic limbic encephalitis has a poor prognosis and is most commonly associated with lung, ovarium, and testicular neoplasms, leading to immune reactions against intracellular antigens (anti-Hu/ANNA1, anti-Ri/ANNA2, anti-CV2/CRMP5 and anti Ma2/Ta). In contrast, the recently described autoimmune encephalitis subtypes present with a broad spectrum of symptoms, respond to autoimmune therapies well and usually associate with autoantibodies against neuronal cell surface receptors (NMDAR, GABABR, AMPAR) or synaptic proteins (LGI1, CASPR2). AIM: Our aim is to bring to awareness the increasing number of autoimmune encephalitis patients requiring neurologic, psychiatric and intensive care and to emphasize the significance of detecting various autoantibodies in diagnosing patients. METHOD: In the past 6 years, our laboratory received 836 autoimmune encephalitis diagnostic test requests from a total of 717 patients. Serum and cerebrospinal fluid (CSF) samples were analysed with indirect immunofluorescence using a BIOCHIP consisting of cell lines transfected with 6 different receptor proteins. RESULTS: IgG autoantibodies against receptor proteins were present in 7.5% of patients. The frequency of positive samples was the following: NMDAR > LGI1 > GABABR > CASPR2. CONCLUSION: Detecting autoantibodies facilitates the diagnosis of autoimmune encephalitis in an early stage. Patients diagnosed early can be effectively treated with plasmapheresis and immunosuppressive drugs. The efficiency of therapies can be monitored by autoantibody detection. Therefore, the diagnostic immune laboratory plays an important role in proper diagnosis and in the prevention of rapidly progressing symptoms. Orv Hetil. 2018; 159(3): 107 112. PMID- 29332417 TI - [Concise history of toxicology - from empiric knowledge to science]. AB - Toxicology is a science of poisonings by xenobiotics and endogenous physiological changes. Its empiric roots may be traced back to the emerging of the human race because the most important pledge of our predecessors' survival was the differentiation between eatable and poisonous plants and animals. In the course of social evolution, there were three main fields of using poisons: 1) hunting and warfare, 2) to settle social tensions by avoiding military conflicts through hiding strategy of eliminating enemies by toxic substances, 3) medicines applied first as anti-poisons and later by introducing strong substances to defeat diseases, but paradoxically active euthanasia is also a part of the whole story. The industrial revolution of the 19th century changed the sporadic occupational diseases to mass conditions. Later the chemical industry and subsequently the mass production of synthetic materials turned out as a global environmental catastrophe. This latest change initiated the emerging of ecological toxicology which is a future history of the concerning ancient science. Orv Hetil. 2018; 159(3): 83-90. PMID- 29332419 TI - Adolescent Stress Treatment Study: A Cluster Randomized Trial. AB - High school students experience a variety of stressors. Mental health issues are critical to their health. The "Adolescent Stress Treatment (AST) Study: A Cluster Randomized Trial" compared the efficacy of two stress reduction devices, the EnergyPodTM and the SleepWingTM. The EnergyPodTM is a device that provides a semiprivate acoustical and visual environment for rest, stress reduction, and sleep. The SleepWingTM is a smaller device offering similar benefits. High school students were offered the opportunity to participate in the AST study when they exhibited signs of agitation. The students completed the Profile of Mood States Short Form (POMS-SF) pre- and postintervention. Total Mood Disturbance (TMD) was measured from the POMS-SF and significant improvement postintervention ( p < .001), regardless of intervention used. POMS-SF subscales were all significantly improved no matter which device was used. All participants in the study dramatically improved their mood after being in either therapeutic device. PMID- 29332418 TI - The role of PET and MRI in evaluating the feasibility of skin-sparing mastectomy following neoadjuvant therapy. AB - Objective To investigate the role of positron emission tomography (PET) and magnetic resonance imaging (MRI) in evaluating the feasibility of skin-sparing mastectomy in patients with locally-advanced breast cancer (LABC) who will undergo neoadjuvant chemotherapy (NAC) by evaluating the sensitivity and specificity of PET and MRI compared with skin biopsy results before and after NAC treatment. Methods Patients with LABC who were treated with NAC between November 2013 and November 2015 were included in this study. Demographic, clinical, radiological and histopathological features of the patients were recorded. Results A total of 30 patients were included in the study with a mean age of 52.6 years (range, 35-70 years). Sensitivity and specificity for detecting skin involvement in LABC was 100%/10% (62%/85%) with MRI and 60%/80% (12%/92%) with PET before (after) NAC, respectively. When radiological skin involvement was assessed in relation to the final histopathological results, the preNAC PET results and histopathological skin involvement were not significantly different; and there was no difference between postNAC MRI and histopathological skin involvement. Conclusions As preNAC PET and postNAC MRI more accurately determined skin involvement, it might be possible to use these two radiological evaluation methods together to assess patient suitability for skin-sparing mastectomy in selected patients. PMID- 29332420 TI - Activated Factor 7 Versus 4-Factor Prothrombin Complex Concentrate for Critical Bleeding Post-Cardiac Surgery. AB - BACKGROUND: Recombinant and plasma-derived factor products, such as activated factor seven (rFVIIa) and four-factor prothrombin complex concentrate (4-factor PCC), have been used off-label for bleeding after cardiac surgery, but little evidence has been published regarding their efficacy and safety. OBJECTIVE: To determine whether there is a difference in chest tube output in patients who have received 4-factor PCC or rFVIIa for critical postoperative bleeding associated with cardiovascular surgery. METHODS: A retrospective chart review was conducted utilizing the electronic medical record system at a 657-bed community, tertiary care hospital in Nashville, Tennessee. Nonpregnant patients >=18 years of age experiencing significant bleeding during cardiac surgery who received either PCC or rFVIIa perioperatively or postoperatively between April 2015 through December 2016 were eligible for inclusion. Patients were excluded if they received 4 factor PCC or rFVIIa for any indication other than bleeding during cardiac surgery or if they received both agents. RESULTS: Data conclude that there is no significant difference in chest tube output 24 hours postoperatively between patients treated with 4-factor PCC or rFVIIa. There was no difference in bleeding, thromboembolic events, or re-exploration between the rFVIIa and 4 factor PCC groups, but there was a difference in units of fresh frozen plasma administered and hospital length of stay. CONCLUSION: 4-Factor PCC may be an equally efficacious alternative to rFVIIa for patients experiencing significant bleeding during cardiac surgery. There is no difference in chest tube output; therefore, there is no difference in bleeding-either at 24 hours postoperatively or total. PMID- 29332421 TI - Comparison of Two Weight-Based Desmopressin Dosing Strategies for Spontaneous Bleeding. AB - BACKGROUND: The pharmacokinetics and pharmacodynamics of desmopressin are appropriate for adjusted body weight-based dosing, particularly in obese patients. OBJECTIVE: The objective of this study was to describe desmopressin dosing strategies, with emphasis on hemostatic outcomes among patients without preexisting bleeding disorders. METHODS: This was a single-center, retrospective cohort study of patients who received intravenous weight-based desmopressin for a hemostatic indication. Demographics, comorbidities, treatment setting, indication, site of bleeding, and outcomes were collected from the medical record. Primary outcomes included need for procedural intervention to achieve hemostasis, transfusion requirement, and death. Association between desmopressin dose and outcome was evaluated using chi2 or Fischer's exact tests and logistic and linear regression models. Multiple regression analysis was conducted to identify other predictors of outcome in the data set. RESULTS: A total of 109 patients were included (n = 26, dose adjustment; n = 83, no dose adjustment). Baseline characteristics were well-matched between groups: mean (SD) age of 57.0 (13.5) years; mean (SD) Charlson Comorbidity Score of 6.5 (2.8); 37% were obese; 76% were critically ill; 81% were actively bleeding without differences in site of bleeding; and crude mortality was 39%. No differences in death, mean units of packed red blood cells transfused, or need for procedural hemostasis were observed between adjusted weight- and actual weight-based desmopressin dosing. CONCLUSIONS: When used adjunctively to blood product transfusion in actively bleeding patients, use of adjusted body weight-based desmopressin did not negatively affect clinical outcomes. More data are needed to confirm this dosing strategy. PMID- 29332422 TI - Unexpected Management Behaviors in Adolescents With Type 1 Diabetes Using Sensor Augmented Pump Therapy. AB - BACKGROUND: Continuous glucose monitoring can improve glycemic outcomes in individuals with type 1 diabetes. However, the constant exposure to real-time glucose levels can sometimes lead the individual to make some risky choices to address the glycemic excursions. Hence, the purpose of this study was to explore the aberrant management behaviors of youth with type 1 diabetes on sensor augmented pump therapy (SAPT). METHODS: Participants in a clinical trial using SAPT on Medtronic MiniMedTM 640G pump who experienced deteriorating glycemic control or unexplained hypoglycemia were identified by the health care professional. The pump and/or sensor data uploaded to CareLinkTM Therapy Management Software were reviewed in these participants. RESULTS: Uncharacteristic management behaviors were identified in five adolescent males. Continuous exposure to high glucose levels resulted in obsessive behaviors displaying a perfectionistic attitude in two participants. Multiple boluses were delivered frequently as uneaten carbohydrates in participant 1 while participant 2 resorted to delivery of extra insulin by cannula fills. In contrast, participant 3 chose to remain hyperglycemic to avoid weight gain while participant 4 trusted the system and used sensor glucose readings for calibrations, with resultant deterioration in glycemic control in both participants. On the other hand, participant 5, due to mistrust in the pump suspend function, consumed carbohydrates with downward glucose trends with rebound hyperglycemia. CONCLUSIONS: Constant exposure to real-time data can lead to unsafe management responses in adolescents with the behavior influenced by trust or mistrust in the system. Adolescents should be empowered with problem solving strategies for safe management. PMID- 29332423 TI - First Experiences With a Wearable Multisensor in an Outpatient Glucose Monitoring Study, Part I: The Users' View. AB - BACKGROUND: Extensive past work showed that noninvasive continuous glucose monitoring with a wearable Multisensor device worn on the upper arm provides useful information about glucose trends to improve diabetes therapy in controlled and semicontrolled conditions. METHODS: To test previous findings also in uncontrolled in-clinic and outpatient conditions, a long-term study has been conducted to collect Multisensor and reference glucose data in a population of 20 type 1 diabetes subjects. A total of 1072 study days were collected and a fully on-line compatible algorithmic routine linking Multisensor data to glucose applied to estimate glucose trends noninvasively. The operation of a digital log book, daily semiautomated data transfer and at least 10 daily SMBG values were requested from the patient. RESULTS: Results showed that the Multisensor is capable of indicating glucose trends. It can do so in 9 out of 10 cases either correctly or with one level of discrepancy. This means that in 90% of all cases the Multisensor shows the glucose dynamic to rapidly increase or at least increase. CONCLUSIONS: The Multisensor and the algorithmic routine used in controlled conditions can track glucose trends in all patients, also in uncontrolled conditions. Training of the patient proved to be essential. The workload imposed on patients was significant and should be reduced in the next step with further automation. The feature of glucose trend indication was welcomed and very much appreciated by patients; this value creation makes a strong case for the justification of wearing a wearable. PMID- 29332424 TI - Salivary metabolomics profile of patients with recurrent aphthous ulcer as revealed by liquid chromatography-tandem mass spectrometry. AB - Objective We compared the salivary nontargeted metabolite profiles between patients with recurrent aphthous ulcer (RAU) and healthy individuals to investigate the metabolic alterations associated with RAU. Methods Saliva samples were collected from 45 patients with RAU and 49 healthy individuals, and the salivary metabolites were quantified using liquid chromatography-tandem mass spectrometry. The metabolomic profiles were then analyzed using multivariate and univariate statistical methods, and enrichment of the metabolites in various biological pathways was assessed. Results In total, 206 significant differentiating metabolites (Wilcoxon test, false discovery rate [FDR] of <0.05) were identified between patients with RAU and healthy individuals. These metabolites were implicated in tryptophan metabolism, steroid hormone biosynthesis, and other metabolic pathways. Two commonly circulating steroids, estrone sulfate and dehydroepiandrosterone sulfate, were significantly lower in the saliva of patients with RAU (Wilcoxon test, FDR < 0.05, power > 0.9). Principal component analysis and partial least-squares discriminant analysis revealed metabolic perturbations involving RAU, and receiver operating characteristic curve analysis with several metabolites showed good diagnostic ability for RAU. Conclusions The results of this study indicate that patients with RAU are characterized by metabolic imbalances. Psychogenic factors, endocrinopathies, and immunosuppression may contribute to the onset of RAU. PMID- 29332425 TI - Dermatological Manifestations in Patients Undergoing In Vitro Fertilisation: A Prospective Study. AB - BACKGROUND: Changing sociodemographic patterns with an increase in the age of childbirth have affected fertility rates worldwide. With advancing reproductive medicine, assisted reproductive techniques (ARTs) are becoming common. While dermatological manifestations in normal pregnancies have been well documented, there is a paucity of data regarding cutaneous manifestations in patients undergoing ART. OBJECTIVES: The objectives of our study were to estimate the incidence and types of dermatological manifestations in patients undergoing in vitro fertilisation (IVF) and to study their associations with age, type of infertility, and outcome of the procedure. METHODS: A prospective cohort of 200 patients undergoing IVF in a tertiary care centre was observed for occurrence of any dermatological manifestations from initiation of the IVF protocol to the outcome of the procedure at 3 weeks after embryo transfer. RESULTS: Dermatological manifestations were seen in 27% of the study group, with urticaria being the most common cutaneous finding seen in 13.5%, followed by acneform eruptions (3%). Twenty-six (96.3%) of patients who manifested with urticaria were on progesterone. No statistically significant association was found between the occurrence of dermatological manifestations and the outcome of IVF, type of infertility, history of ART, and ovum donation in our study. Association between the age of the patient and the outcome of IVF cycle was statistically significant. CONCLUSION: Dermatological manifestations are seen in almost one quarter of patients undergoing IVF, with progesterone-induced urticaria being the most common. Occurrence of cutaneous manifestations has no significant association with the outcome of IVF. PMID- 29332426 TI - Effects of multiple sclerosis and medications on menopausal age. AB - Objectives We aimed to determine whether multiple sclerosis (MS) and methylprednisolone and disease-modifying drugs have an effect on menopausal age. Methods A total of 86 patients and 98 healthy subjects were included in this study. The natural menopausal age of the patients and healthy subjects were compared. The cumulative dosages of methylprednisolone, beta interferons (IFNbetas), and glatiramer acetate were calculated. The effects of the Expanded Disability Status Scale (EDSS), duration of the disease, and cumulative dosage of medications on menopausal age were evaluated. Results The patients' mean menopausal age was 45.3 +/- 4.8 years and healthy subjects' menopausal age was 46.8 +/- 4.3 years, with no significant difference between the two groups. The cumulative dosage of methylprednisolone showed an effect on menopausal age. There was a significant inverse correlation between menopausal age and dosage of IFNbeta-1b, while the disease duration and EDSS score showed no correlation with menopausal age. Conclusions We conclude that menopausal age is not affected by MS. However, long-term methylprednisolone and IFNbeta-1b treatments may change menopausal age in a dose-dependent manner. PMID- 29332427 TI - Serum potassium levels and outcomes in critically ill patients in the medical intensive care unit. AB - Objective To compare the outcomes of patients with and without a mean serum potassium (K+) level within the recommended range (3.5-4.5 mEq/L). Methods This prospective cohort study involved patients admitted to the medical intensive care unit (ICU) of Siriraj Hospital from May 2012 to February 2013. The patients' baseline characteristics, Acute Physiology and Chronic Health Evaluation II (APACHE II) score, serum K+ level, and hospital outcomes were recorded. Patients with a mean K+ level of 3.5 to 4.5 mEq/L and with all individual K+ values of 3.0 to 5.0 mEq/L were allocated to the normal K+ group. The remaining patients were allocated to the abnormal K+ group. Results In total, 160 patients were included. Their mean age was 59.3+/-18.3 years, and their mean APACHE II score was 21.8+/ 14.0. The normal K+ group comprised 74 (46.3%) patients. The abnormal K+ group had a significantly higher mean APACHE II score, proportion of coronary artery disease, and rate of vasopressor treatment. An abnormal serum K+ level was associated with significantly higher ICU mortality and incidence of ventricular fibrillation. Conclusion Critically ill patients with abnormal K+ levels had a higher incidence of ventricular arrhythmia and ICU mortality than patients with normal K+ levels. PMID- 29332428 TI - The Effectiveness of Preoperative Preparation for Improving Perioperative Outcomes in Children and Caregivers. AB - Most children experience significant anxiety during the preoperative period. Greater preoperative anxiety may be related to a higher incidence of negative behaviors. This study aimed to develop a family-centered preoperative preparation program and to evaluate the effects of this program on children's preoperative emotional behaviors, postoperative behavior, and posthospital behavior, and on caregiver anxiety. A prospective, randomized controlled study was conducted. The population consisted of children who underwent minor surgery and their caregivers. The control group received standard care, and the experimental group received standard care plus preoperative preparation, which included a tour, a cartoon video depicting a boy's surgical journey, and familiarization with medical equipment. Children's emotional behaviors and caregiver anxiety were measured at the preoperative visit, in the preoperative holding area, and at induction of anesthesia. Postoperative behavior was measured when children were in the recovery room, and the researcher also contacted caregivers 2 weeks after the surgery to assess the children's behavior at home. A linear mixed-effects model results showed that as the surgery approached, the experimental group had fewer and more stable preoperative emotional behaviors (least squares means of preoperative emotional behaviors from preoperative visit to induction of anesthesia = 10.01-10.95). However, the control group exhibited significantly increased preoperative emotional behaviors as the surgery approached (least squares means of preoperative emotional behaviors from the preoperative visit to induction of anesthesia = 7.87-12.23). Family-centered preoperative preparation can effectively improve children's negative emotional behaviors from their time in the preoperative holding area to the induction of anesthesia. PMID- 29332429 TI - Engagement as predictors of performance in a single cohort of undergraduate chiropractic students. AB - OBJECTIVE: To investigate the potential association of novel academic and nonacademic factors with chiropractic student academic performance. METHODS: Students enrolled into year 1 of a chiropractic master's degree (MChiro) at our college were selected for this study. Data collected included demographics, attendance, virtual learning environment use, additional learning needs, previous degree qualifications, and summative marks. Differences between students who had to take an examination more than once (resit) and nonresit students were explored using t test and chi2 analysis. Relationships between attendance and end-of-year marks were explored using regression analysis. RESULTS: Male students outperformed female students in four of the six units and as the total year average. Students who attended <80% of classes were more likely to have a resit in one or more units (relative risk [ RR] = 2.6; 95% confidence interval [CI], 1.4-4.9). Students who performed poorly (<70%) in the semester 1 unit of a course on human structure and failed the semester 1 practical assessment of a course on clinical management were significantly more likely to have one or more resit assessments in semester 2 units ( RR = 3.5 [95% CI, 2.2-5.7]; RR = 3.2 [95% CI, 2.0-4.9]). Attendance and unit 105 were independent predictors of one or more resits at the end-of-year ( R2 = 0.86, p < .001). CONCLUSION: Attendance and first semester summative marks were associated with end-of-year performance. As such, these markers of performance may be used to flag struggling students in the program. PMID- 29332431 TI - Validation of the Ceredigion Youth Screening Tool. AB - Evidence suggests that only a small minority of youth offenders will continue their behaviour in the longer term and largely independent of any interventions they may receive (Bateman, 2011; Haines & Case, 2015). Hence, "screening out" this larger low-risk cohort could have a positive impact upon the individual through a reduction in stigmatisation/labelling and free up resources for higher risk clients. This article outlines development of the Ceredigion Youth Screening Tool (CYSTEM)-developed and tested to address the two facets of criminality and vulnerability-closely aligned to the eight key risk indicators identified in the Risk-Needs-Responsivity (R-N-R) literature (Andrews & Bonta, 2010). Initial results with two cohorts of 372 young people indicate good convergent and discriminative validity in screening out the lowest level referrals, while also identifying 90% of potential future offenders. More importantly, CYSTEM is able to screen out approximately 35% of the low-risk offenders that are unlikely to require formal evaluation and/or intervention. It is suggested that the streamlining of this process using CYSTEM reduces demand on staff time and decreases the stigmatisation of young people referred for minor offences. Potential improvements to the tool and future developments in statistical risk prediction are also discussed. PMID- 29332430 TI - Effect of creatine phosphate sodium on bispectral index and recovery quality during the general anaesthesia emergence period in elderly patients: A randomized, double-blind, placebo-controlled trial. AB - Objective To evaluate the effect of creatine phosphate sodium on bispectral index (BIS) and recovery quality during the general anaesthesia emergence period in elderly patients. Methods This randomized, double-blind, placebo-controlled study enrolled patients undergoing transabdominal cholecystectomy under general anaesthesia. Patients were randomly assigned to receive either creatine phosphate sodium (1.0 g/100 ml 0.9% saline; group P) or 100 ml 0.9% saline (group C) over 30 minutes during surgical incision. The BIS values were recorded at anaesthesia induction (T0), skin incision (T1), cutting the gallbladder (T2), suturing the peritoneum (T3), skin closure (T4), sputum suction (T5), extubation (T6) and 1 min (T7), 5 min (T8), 10 min (T9), and 15 min (T10) after extubation. The anaesthesia duration, operation time, waking time, extubation time, consciousness recovery time, time in the postanaesthesia care unit (PACU), and the Steward recovery scores at T7, T8, T9 and T10 were recorded. Results A total of 120 elderly patients were randomized equally to the two groups. Compared with group C, the BIS values were significantly higher in group P at T5, T6, T7 and T8; and the Steward recovery scores at T7 and T8 were significantly higher in group P. The waking time, extubation time, consciousness recovery time and time in the PACU were significantly shorter in group P compared with group C. Conclusion Creatine phosphate sodium administered during transabdominal cholecystectomy can improve BIS values and recovery following general anaesthesia in elderly patients. PMID- 29332433 TI - Slippage of Tightrope Button in Syndesmotic Fixation of Weber C Malleolar Fractures: A Case Series. AB - BACKGROUND: Tightrope fixation is an emerging technique for syndesmotic fixation with promising results. However, our case series highlights the slippage of Tightrope buttons as a complication of suture button syndesmotic fixation of Weber C malleolar fractures using limited contact dynamic compression (LCDCP) plates. METHODS: We report a series of cases from our database in which slippage of the Tightrope button through the LCDCP holes in Weber C malleolar fractures was noted. We measured the medial clear space (MCS), tibiofibular clear space (TFCS), and distal tibiofibular overlap (DTFO) and computed the largest change in these measurements from the first postoperative follow-up radiographs. Patient records were reviewed for persistent symptoms that could be attributed to the loss of syndesmotic fixation and stability. RESULTS: Follow-up radiographs of 3 patients showed a slippage of the Tightrope button through the LCDCP holes. Two of the patients reported persistent ankle pain and swelling with prolonged activity. The mean increases in MCS and TFCS among these patients were 0.7 (+/ 0.081) mm and 1.5 (+/-0.798) mm, respectively. The mean decrease in DTFO was 2.2 (+/-0.864) mm. We next highlight 3 patients with Weber C malleolar fractures who underwent suture button syndesmotic fixation using double-stacked one-third tubular plates instead of the LCDCP. CONCLUSION: This case series reported Tightrope button slippage as an early complication of syndesmotic fixation of Weber C malleolar fractures. We propose the use of double-stacked one-third tubular plates instead of the LCDCP to avoid this complication. LEVEL OF EVIDENCE: Level V, expert opinion. PMID- 29332432 TI - Spontaneous fetal femoral fracture: a case report and literature review. AB - Spontaneous fetal femoral fractures are uncommon in the paediatric setting. The major clinical presentations of a spontaneous fetal femoral fracture are femoral angulation, shortness of the femur and even a marked fracture line. This case report describes a spontaneous fetal femoral fracture of the right femur, which was detected by routine ultrasonography during the 19th week of gestation in a 24 year-old woman. On routine follow-up visits, the angulation of the right femur in the fetus gradually improved. A caesarean section was undertaken at 39 weeks +5 days of gestation and an X-ray was taken on the second day after birth, which showed that the fracture had healed and the callus had been absorbed. The lengths of the two femurs of the baby were not equal; the right femur was 84 mm, which was 11 mm shorter than the left femur. In cases like this, postnatal follow-up is essential so that an operation can be carried out in a timely manner when the deformity is apparent. PMID- 29332435 TI - CHANGES IN THE HEMOCYTE PICTURE OF GALLERIA MELLONELLA (LINNAEUS). AB - 1. The hemocytes of Galleria mellonella (Linnaeus) larvae were identified and differentially counted in unfixed hemolymph with phase microscopy. The numbers of hemocytes per microliter of hemolymph were obtained from both unfixed and heat fixed larvae. Hemolymph volumes were determined by the amaranth red method. These studies were made to determine what changes in the hematology occur as the last stage larvae pass through distinctive phases in transforming into pupae. 2. In differential counts, plasmatocytoids decrease, immature adipohemocytes suddenly appear, and mature adipohemocytes steadily increase. Spherule cells, oenocytoids and dividing hemocytes decrease as Galleria larvae develop into pupae. 3. The numbers of hemocytes per microliter of hemolymph increase as Galleria larvae proceed towards the pupal stage in both unfixed and heat-fixed animals. Counts were always significantly higher in heat-fixed than in unfixed larvae. 4. The hemolymph volume is the same in both unfixed and heat-fixed larvae. The hemolymph volume declines from about 34% (56.7 microliters) in precocoonspinning larvae to less than 16.4% (19 microliters) in newly formed pupae. 5. It is estimated from the various data presented that an average of 1,456,000 hemocytes remain in circulation within the hemocoele of unfixed larvae from the fifteenth through the twentieth days of life, and that with pupation more than one-half of these cells fall out of circulation. 6. In three out of 5 cases it was possible to correlate decreases in the plasmatocytoid population with increases in adipohemocytes. It is suggested that during the spinning of a cocoon plasmatocytoids transform into both immature and mature adipohemocytes, that when the larvae are densely cocooned mature adipohemocytes are largely formed by the maturation of immature adipohemocytes, and that in pharate pupae new mature adipohemocytes are derived from both immature adipohemocytes and plasmatocytoids. 7. The hemocyte picture of Galleria is compared to that of Prodenia and Bombyx. In all three of these Lepidoptera the plasmatocytoids decrease and the hemocytes with many polysaccharide and/or lipid or other types of inclusions increase prior to pupation. Galleria differs from the other two species in that their hemocytes with lipid or other inclusions do not appear until about the sixteenth or seventeenth days of larval life, do not divide, and in many cases are derived from circulating plasmatocytes. PMID- 29332434 TI - Relationship between antimicrobial-resistance programs and antibiotic dispensing for upper respiratory tract infection: An analysis of Australian data between 2004 and 2015. AB - Objective NPS MedicineWise aims to ensure that medicines are prescribed and used in a manner consistent with current evidence-based best practice. A series of nationwide educational and advertising interventions for general practitioners and consumers were implemented in Australia between 2009 and 2015 with the aim of reducing antibiotic prescriptions for upper respiratory tract infections (URTIs). The work described in this paper quantifies the change in antibiotic dispensing following these interventions. Methods Antibiotic dispensing data between 2004 and 2015 were obtained from a national claims database. A Bayesian structural time series model was used to forecast a series of antibiotic dispensing volumes expected to have occurred if the interventions had not taken place. These were compared with the volumes that were actually observed to estimate the intervention effect. Results On average, 126,536 fewer antibiotics were dispensed each month since the intervention programs began in 2009 (95% Bayesian credible interval = 71,580-181,490). This change represents a 14% total reduction in dispensed scripts after the series of intervention programs began in 2009. Conclusions Continual educational intervention programs that emphasise the judicious use of antibiotics may effectively reduce inappropriate prescribing of antibiotics for the treatment of URTIs at a national level. PMID- 29332436 TI - UTILIZATION OF DISSOLVED EXOGENOUS NUTRIENTS BY THE STARFISHES, ASTERIAS FORBESI AND HENRICIA SANGUINOLENTA. AB - 1. Small specimens of A. forbesi and H. sanguinolenta were exposed to dissolved C14-amino acids and glucose. The subsequent distribution of these materials was then determined in the following five regions of the body: disk (including the gonads), oral body wall of the rays, aboral body wall of the rays, stomach, and digestive glands. 2. In all cases, large proportions of the labeled nutrients were taken up into the external tissues. The largest amount was usually absorbed into the oral body wall, which probably possesses a proportionately greater ventilated surface area than the other regions. 3. Over a period of 20 days there was little indication of movement of the externally absorbed nutrients into the internal organs. In this period, very little loss of amino acid radioactivity was noted. The amino acids became progressively less soluable in alcohol, suggesting that they were incorporated into the structural proteins of the organism. 4. Glucose radioactivity declined progressively over the 20-day period. As observed in Asterias, this decline occurred almost exclusively in the portion of absorbed glucose that remained alcohol-soluble. This fraction was possibly used as an energy source while the insoluble fraction became incorporated into more inert elements. 5. A number of the specimens of Henricia appeared to pump up and absorb the glucose medium into their digestive organs. This was interpreted as a form of feeding behavior possibly initiated by the relatively high concentration of glucose used. The much less concentrated amino acid medium failed to initiate such a reaction. 6. It is concluded that nutrition in starfish is probably a dual process involving both a continuous epidermal absorption of dissolved exogenous materials for the benefit primarily of the superficial tissues, and intermittent oral feeding to satisfy the more general needs of the entire organism and especially of the internal organs. PMID- 29332437 TI - ENVIRONMENTALLY CONTROLLED INDUCTION OF PRIMARY MALE GONOCHORISTS FROM EGGS OF THE SELF-FERTILIZING HERMAPHRODITIC FISH, RIVULUS MARMORATUS POEY. AB - 1. Rivulus marmoratus is the only known hermaphroditic fish species naturally self-fertilizing. Tissue grafts between wild-caught fish and their uniparental laboratory descendants give the autograft reaction, indicating propagation by selfing in the wild also. Only hermaphrodites have been found in the wild locally, although selfing through more than 10 uniparental laboratory generations yielded a few primary male gonochorists, under 5% in contrast to over 95% that were hermaphrodites. Females seem to be non-existent. 2. Two series of experiments were undertaken to identify a possible environmental factor able to cause a deviation to the male phenotype during sex differentiation, on the working hypothesis that low male incidence in clones composed otherwise of hermaphrodites indicated a lability in the sex-determining mechanism through which the genotype normally produces the hermaphrodite phenotype. 3. Individuals of two clones, each in its own jar throughout life, were exposed to the eight combinations of bright or dim light, sea water or fresh water, high or low temperature (Experimental Series One). Exposure was from not later than the 3/4 blastoderm stage until sexual maturity at high temperature or five months post hatching at low. 4. Over seven times the number of males previously encountered were obtained all but one from low-temperature treatments. Male production was correlated with low-temperature rearing despite alternative light intensities and salinities and structural-functional abnormalities (prolapsed oviduct, pharyngeal hyperplasia, kyphosis) peculiar to different dim-light, salinity-temperature combinations, and partly attributable to hormonal derangements. Mortalities were high enough to present the formal dilemma of a differential male induction versus hermaphrodite mortality at low temperature and vice versa at high, but this dilemma was resolved by Experimental Series Two. 5. The Experimental Series One fish were monitored daily up to 1,376 days post-hatching, by which time almost 60% of the hermaphrodites had changed to functional secondary male gonochorists, the rest dying or killed as hermaphrodites, some each year. Primary males remain unchanged except for senile degeneration. Secondary males arise mostly late in laboratory-prolonged life, by involution of the ovarian component of the ovotestes with further evolution of the testicular component, the caudal ocellus fading or vanishing as they become orange like the primary males. 6. In Experimental Series Two, mortalities were low and the structural-functional abnormalities were absent. All individuals were kept at the same intermediate salinity and light intensity: Group A, at moderate temperature throughout to maturity; Group B, at the same temperature through hatching, at low temperature the first five months post-hatching, thereafter at the moderate temperature; Group C, at the moderate temperature up to stages from optic vesicle formation to outset of blood circulation, then at low temperature through eclosion and for five months post-eclosion. Group-C embryos being cut from their chorions to minimize deaths from hatching failure. 7. The Group-A eggs yielded 100% hermaphrodites, the Group-B eggs, 92% hermaphrodites and 8% deaths, the Group-C eggs, 72% males, 18% hermaphrodites, and 10% deaths. Exposure to low temperature from as late as outset of blood circulation produced males. 8. The uniqueness of the present experiments and results, exclusion of alternative explanations, significance of the temperature effect per se, and the implications of these findings for the interpretation of intersexuality in fishes are discussed at length. PMID- 29332438 TI - NORTHERN PACIFIC GIGANTIONE (ISOPODA). AB - 1. Eight species of Gigantione have now been described. One was from the north Atlantic, one from the Indian Ocean, two from the south Pacific, and four from the north Pacific. Of these last, G. pratti and G. hawaiiensis are new species. The hosts of the different species have all been in separate genera, with the exception of those for G. giardi and G. hawaiiensis, both of which were in Xantho. 2. Dr. Shiino is carrying out an intensive investigation of epicarids in the Japanese archipelago, and the writer is in the process of preparing a monograph covering the Epicaridea of the northern Pacific (except for those areas and forms near Japan). Therefore, it should be expected that many new species and possibly genera will be found in the Pacific as collecting continues. PMID- 29332439 TI - THE GROWTH AND ACTIVITY OF THE CORPORA ALLATA IN THE LARVAL FIREBRAT, THERMOBIA DOMESTICA (PACKARD) (THYSANURA, LEPISMATIDAE). AB - 1. The integument of the firebrat, Thermobia domestica, lacks scales until the molt from the third to the fourth larval stage, but retains them in all subsequent instars. 2. Implantation experiments confirm earlier findings that the scaleless integument of first stage larvae will develop scales prematurely when implanted into a molting adult, implying that the formation of scales is humorally determined. 3. The number of cells in the corpora allata increases progressively throughout the life of the firebrat, and the relationship between the number of allatal cells and the weight of the firebrat is expressed by the regression: y = 10.61 + 1.94x, where y = the number of cells in each corpus allatum and x = the weight of the insect in mg. The regression does not intersect the origin. 4. The size of nuclei in the corpus allatum remains constant throughout life, but the volume of cytoplasm can alter. The minimal cytoplasmic volume coincides with the deposition of the first scale-bearing cuticle. The amount of cytoplasm then increases abruptly, the level continuing to rise slowly throughout the rest of larval life. A further increase may occur in mated females. 5. The juvenile hormone activity of the corpora allata, when assayed on pupae of the silkmoth Antheraea polyphemus, correlates with the volume of cytoplasm in the gland, and is minimal in the third stage. 6. The activity of the corpora allata is influenced by the intake of food, specifically protein. 7. Dedifferentiation of the epidermis is prevented by the pattern of growth in the corpus allatum, which indicates that the secretory potential of the gland, expressed as the volume of allatal cytoplasm per milligram body weight, is greater during the first through third instars than at any later stage, and by the inactivation of juvenile hormone during the molting cycle. PMID- 29332440 TI - SURFACE AREA RESPIRATION DURING THE HATCHING OF ENCYSTED EMBRYOS OF THE BRINE SHRIMP, ARTEMIA SALINA. AB - Oxygen consumption of Artemia salina was measured during development in 0.5 M NaCl at 25 degrees C. A pattern is seen in which the rate of oxygen consumption increases rapidly within the first few hours after hydration, remains constant for a time, and then increases rapidly again while most of the embryos are emerging. This pattern is dependent upon surface area of the developing embryo. During emergence, the surface area of the embryo increases 172% over the surface area of the encysted embryo. During the same development period, oxygen uptake increases by almost the same factor. PMID- 29332441 TI - THE RELATIONSHIP OF TEMPERATURE TO THE LARVAL DEVELOPMENT OF NASSARIUS OBSOLETUS (GASTROPODA). AB - 1. Development of the embryos of Nassarius obsoletus within egg capsules is regulated by sea-water temperature. An increase in the time required between spawning and the emergence of veliger larvae is slight between 28 degrees and 20 degrees C., about 0.25 day for each degree decrease in temperature. Between 20 degrees and 16.5 degrees C., the corresponding increase was 2 days per degree decrease in temperature. At 11.5 degrees C., development was not completed and larvae did not emerge from their egg capsules after nine weeks. However, a large proportion of these embryos survived and developed normally through metamorphosis when placed at room temperature. 2. The growth rate of planktonic veliger larvae of N. obsoletus was greatest at approximately 25 degrees C. The lowest temperature at which the development to metamorphosis was completed was at 16 degrees to 17 degrees C. There was a 46% inhibition in the growth rate of larvae between the optimum temperature and the minimum temperature at which development is completed. 3. The larval life of N. obsoletus veligers may be divided into two stages. The first of these, the "developmental period," is one during which rapid growth and morphological development occur. This is followed by the "delay period" characterized by a gradual decrease in growth rate. Reduced temperature may influence the rate of growth and consequently the length of the "developmental period." The termination of the "developmental period" comes with the "creeping-swimming stage." The duration of the "delay period" may be quite variable and is determined by the availability of a favorable sediment for settlement. PMID- 29332442 TI - THE MORPHOLOGY, LIFE-HISTORY, AND SYSTEMATIC RELATIONS OF THE DIGENETIC TREMATODE, UNISERIALIS BREVISERIALIS SP. NOV., (NOTOCOTYLIDAE), A PARASITE OF THE BURSA FABRICIUS OF BIRDS. AB - Imbricata-type cercariae from Hydrobia salsa, a brackish-water, prosobranch snail taken near Woods Hole, Massachusetts, emerge shortly before noon, are photopositive and encyst after swimming for a few minutes to three to four hours. Metacercariae were fed to chicks and domestic ducklings and developed to mature worms after about two weeks in the bursae Fabricii of these birds. Adult and larval stages are described and figured. The worms belong in the family Notocotylidae and are assigned to the genus, Uniserialis Beverley-Burton, 1958. Systematic problems of genera in the family are discussed. PMID- 29332444 TI - THE EFFECT OF LIGHT ON THE SPAWNING OF CIONA INTESTINALIS. AB - 1. The spawning of Ciona intestinalis with respect to light was studied, using both white light and monochromatic light. 2. A one-hour dark-adaption period followed by exposure to light resulted in spawning by 66.6% of the 884 animals tested. 3. Spawning occurs an average of 27.3 minutes after the onset of illumination. 4. Illumination need not be continuous until spawning occurs; the animals spawn when returned to the dark after a short illumination period, provided they have received enough energy. 5. The action spectrum for spawning suggests cytochrome c as a chromophore. PMID- 29332443 TI - GENETIC AND DEVELOPMENTAL STUDIES ON BOTRYLLUS SCHLOSSERI. AB - 1. Properties of Botryllus schlosseri which give it outstanding promise for studies in developmental genetics are reviewed. 2. Laboratory culture procedures, in vitro fertilization, and a method for raising embryos in vitro are described. Controlled successions of complete life cycles can now be achieved in any laboratory. 3. Experiments involving colony fusion, subsequent vascular budding, and the analysis of color patterns in resultant systems suggest that cells of the simple vessel walls govern the morphology of the regenerated zooids. 4. Results of some preliminary genetic crosses are reported. PMID- 29332445 TI - Stylet angulation of 70 degrees reduces the time to intubation with the GlideScope(r): A prospective randomised trial. AB - Objective The GlideScope(r) videolaryngoscope provides a good view of the glottis. However, directing and inserting an endotracheal tube is sometimes difficult during intubation with the GlideScope(r). In this study, we compared two GlideScope(r) stylet angulations (90 degrees vs. 70 degrees ) in terms of the time to intubation. Methods In total, 162 patients scheduled for elective surgery under general anaesthesia were randomly assigned to one of two groups. In the 90 group ( n = 79), a 90 degrees stylet was used. In the 70 group ( n = 78), a 70 degrees stylet was used. The time to intubation was recorded. The number of intubation attempts was assessed. Results The time to intubation was significantly shorter in the 70 than 90 group [26.0 (23.0-32.0) vs. 37.0 (30.0 43.0) s, respectively]. The first-time intubation success rate was significantly higher and the number of failed intubations was significantly lower in the 70 than 90 group (100% vs. 87% and 0% vs. 6%, respectively). Conclusions This investigation suggests that a 70 degrees angle stylet is superior to a 90 degrees angle stylet for GlideScope(r) intubation. Trial Registration Clinicaltrials.gov Identifier: NCT02547064. PMID- 29332446 TI - Lung Cancer Complicated With Asymptomatic Pulmonary Embolism: Clinical Analysis of 84 Patients. AB - BACKGROUND AND OBJECTIVE: Pulmonary embolism is potentially life-threatening in patients with lung cancer, but the clinical studies on patients with lung cancer having asymptomatic pulmonary embolism were barely reported. METHODS: Clinical data of patients with lung cancer were obtained from the Department of Respiratory and Critical Care Medicine of Tianjin Chest Hospital during July 2012 and June 2015 and were reviewed retrospectively. A total of 28 patients with lung cancer having pulmonary embolism (LP group) were enrolled, and another 56 cases with lung cancer alone (LC group) were enrolled as controls. RESULTS: Seventeen (60.7%) of 28 patients in the LP group developed adenocarcinoma, which was more frequent than that in the LC group ( P < .01); the LP group displayed lower counts of hemoglobin and albumin than the LC group ( P < .05); the counts of leukocyte (white blood cell) and d-dimer of patients in the LP group were also higher than those in the LC group ( P < .05). The high-incidence period of pulmonary embolism among 17 asymptomatic cases in the LP group was 3.6 months postdiagnosis (95% confidence interval, 3.2-4.0), showing a significant difference with that of other 11 patients with symptomatic pulmonary embolism, which was 10.5 months (95% confidence interval, 8.88-12.12; P < .01). Survival analysis displayed that median survival time of patients with asymptomatic pulmonary embolism was 7.2 months (95% confidence interval, 5.86-8.56), while that of symptomatic pulmonary embolism was 2.8 months (95% confidence interval, 2.48-3.12). Log-rank examination showed that survival time of asymptomatic pulmonary embolism group was statistically longer than that of symptomatic pulmonary embolism group. CONCLUSION: Lung adenocarcinoma, chemotherapy, hyperleukocytosis, and d-dimer increment were the risk factors for lung cancer combined with asymptomatic pulmonary embolism. PMID- 29332447 TI - A Projection Quality-Driven Tube Current Modulation Method in Cone-Beam CT for IGRT: Proof of Concept. AB - PURPOSE: To develop a projection quality-driven tube current modulation method in cone-beam computed tomography for image-guided radiotherapy based on the prior attenuation information obtained by the planning computed tomography and then evaluate its effect on a reduction in the imaging dose. MATERIALS AND METHODS: The QCKV-1 phantom with different thicknesses (0-400 mm) of solid water upon it was used to simulate different attenuation (MU). Projections were acquired with a series of tube current-exposure time product (mAs) settings, and a 2-dimensional contrast to noise ratio was analyzed for each projection to create a lookup table of mAs versus 2-dimensional contrast to noise ratio, MU. Before a patient underwent computed tomography, the maximum attenuation [Formula: see text] within the 95% range of each projection angle (theta) was estimated according to the planning computed tomography images. Then, a desired 2-dimensional contrast to noise ratio value was selected, and the mAs setting at theta was calculated with the lookup table of mAs versus 2-dimensional contrast to noise ratio,[Formula: see text]. Three-dimensional cone-beam computed tomography images were reconstructed using the projections acquired with the selected mAs. The imaging dose was evaluated with a polymethyl methacrylate dosimetry phantom in terms of volume computed tomography dose index. Image quality was analyzed using a Catphan 503 phantom with an oval body annulus and a pelvis phantom. RESULTS: For the Catphan 503 phantom, the cone-beam computed tomography image obtained by the projection quality-driven tube current modulation method had a similar quality to that of conventional cone-beam computed tomography . However, the proposed method could reduce the imaging dose by 16% to 33% to achieve an equivalent contrast to noise ratio value. For the pelvis phantom, the structural similarity index was 0.992 with a dose reduction of 39.7% for the projection quality-driven tube current modulation method. CONCLUSIONS: The proposed method could reduce the additional dose to the patient while not degrading the image quality for cone beam computed tomography. The projection quality-driven tube current modulation method could be especially beneficial to patients who undergo cone-beam computed tomography frequently during a treatment course. PMID- 29332448 TI - Helical Therapy is Safe for Lung Stereotactic Body Radiation Therapy Despite Limitations in Achieving Sharp Dose Gradients. AB - PURPOSE: We observed that many of our helical therapy lung stereotactic body radiation therapy plans did not meet the Radiation Therapy Oncology Group (RTOG) recommended R50% (volume of 50% of the prescription dose/planning target volume), which characterizes the steepness of dose fall off. We hypothesized that despite not meeting R50%, helical therapy lung stereotactic body radiation therapy plans would confer similar local control and minimal side effects as previously reported using nonhelical treatment platforms. MATERIALS AND METHODS: We report a retrospective review of all consecutive patients treated off-protocol with stereotactic body radiation therapy for peripheral lung lesions from 2008 to 2013 utilizing helical therapy. Seventy-four patients (81 lesions and 79 plans) were treated with doses ranging from 48 to 60 Gy in 3 to 5 fractions prescribed to the edge of the planning target volume. RESULTS: Forty-eight (61%) plans had major deviation from R50%. Only 1 (<1%) plan had a major deviation from the R100%. All plans had > 95% planning target volume coverage by prescription dose, 7(8.6%) plans with 121% to 133% maximum dose, and lung V20 Gy <10% in 70 (89%) plans. With a median follow-up of 4.7 years (95% confidence interval: 4.1-5.3), local control for all patients at 1, 2, and 5 years was 94.6%, 83.4%, and 74%, respectively. For patients with primary stage I-II lung cancer (n = 46), the 1, 2, and 5-year local control: 97.2%, 94.2%, and 86.9%; RC: 97.6%, 82.5%, and 69.5%; and DM: 3%, 16%, and 33.4%, respectively. Patients treated for lung metastases (n = 26) had worse local control at 1, 2, and 5 years: 94.4%, 69.3%, and 55.5%, respectively. Side effects were rare with 2 (3%) patients reporting chest wall pain and 6 (8%) patients experiencing radiation pneumonitis, including 1 patient who had grade 5 radiation pneumonitis. CONCLUSIONS: Helical therapy delivers a safe and effective lung stereotactic body radiation therapy plan, despite not being able to meet RTOG's recommended R50 conformality constraint. PMID- 29332449 TI - Mir-452-3p: A Potential Tumor Promoter That Targets the CPEB3/EGFR Axis in Human Hepatocellular Carcinoma. AB - PURPOSE: We proposed to investigate the effects of miR-452-3p on the proliferation and mobility of hepatocellular carcinoma (HCC) cells by targeting cytoplasmic polyadenylation element binding protein 3/estimated glomerular filtration rate (CPEB3/EGFR) axis. METHODS: Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect miR-452-3p expression in 84 pairs of HCC tissues and adjacent tissues. Luciferase reporter assay was employed to examine the relationship between miR-452-3p and CPEB3. Microculture tetrazolium (MTT) assay, colony formation assay, flow cytometry detection, wound healing assay, and transwell assay were used to detect cell proliferation, cycle arrest, apoptosis, and mobility, respectively, in HCC, HepG2, and Huh-7. Western blot was used to detect protein expression levels in EGFR signaling pathway. Kaplan-Meier survival analysis was conducted to analyze the correlation between the miR-452-3p and CPEB3 expression levels and the survival of patients with HCC. RESULTS: MiRNA 452-3p was found significantly upregulated in 84 human HCC sample tissues and cells in comparison with adjacent tissues and normal liver epithelial cells ( P < .01). Luciferase reporter assay demonstrated that CPEB3 was a direct target of miR-452-3p. Overexpression of miR-452-3p promoted cell proliferation and mobility and suppressed apoptosis. MiR-452-3p enhanced EGFR and phosphorylated AKT (pAKT) expression but inhibited p21 expression level. CONCLUSION: MiR-452-3p promoted HCC cell proliferation and mobility by directly targeting the CPEB3/EGFR axis. PMID- 29332451 TI - PSCA rs1045531 Polymorphism and the Risk of Prostate Cancer in a Chinese Population Undergoing Prostate Biopsy. AB - BACKGROUND AND PURPOSE: This study explored the association between a single nucleotide polymorphism of prostate stem cell antigen and prostate cancer in Chinese patients undergoing prostate biopsy. MATERIALS AND METHODS: DNA from 416 patients undergoing prostate biopsy was typed for the prostate stem cell antigen rs1045531 single-nucleotide polymorphism. The frequency of the rs1045531 polymorphism in patients with prostate cancer and in patients with benign prostatic hyperplasia was compared. Associations between the polymorphism and the risk of prostate cancer, prostate special antigen, Gleason score, and clinical stage were analyzed. RESULTS: Statistically significant differences in the distribution of the rs1045531 genotypes and alleles were found between prostate cancer and benign prostatic hyperplasia in patients undergoing prostate biopsy ( P = .035 and .046, respectively). We found that the rs1045531 AC genotype was significantly associated with a high risk of prostate cancer in the heterozygote model (AC vs CC; odds ratio = 2.383, 95% confidence interval: 1.198-4.741, chi2 = 6.229, P = .013) and the dominant model (AA/AC vs CC; odds ratio = 2.169, 95% confidence interval: 1.112-4.229, chi2 = 5.228, P = .022). However, susceptibility of prostate cancer was decreased in the homozygote model (AA vs CC; odds ratio = 0.828, 95% confidence interval: 0.143-4.805, P = .601). When considering clinical factors, the rs1045531 showed an association with prostate special antigen of 10 ng/mL or greater, a Gleason score of 7 or greater, and a size of T2 or greater. CONCLUSION: Men with the rs1045531 AC genotype of prostate stem cell antigen were at higher risk of prostate cancer in Chinese patients undergoing prostate biopsy. PMID- 29332452 TI - The DNMT3B -579G>T Polymorphism Is Significantly Associated With the Risk of Gastric Cancer but not Lung Cancer in Chinese Population. AB - The -149C>T and -579G>T, 2 single nucleotide polymorphisms in de novo methyltransferase 3B gene promoter, have been previously reported to potentially alter the promoter activity and to influence cancer risk. However, the results from previous studies remain conflicting rather than conclusive. In view of this, we conducted a case-control study and then a meta-analysis to examine the association between these 2 single-nucleotide polymorphisms with risk of lung and gastric cancer in Chinese population. The genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism and confirmed by sequencing. In this case-control study, no significant association with lung or gastric cancer risk was observed for -149C>T, while -579G>T was significantly correlated with the risk of gastric cancer but not lung cancer. Moreover, haplotype analysis showed that haplotype -149T/-579 T, which carried the risk 579 T allele, significantly increased the susceptibility to gastric cancer. However, none of the haplotypes was associated with the risk of lung cancer. The following meta-analysis involved only Chinese population and further confirmed the significant association of -579G>T with gastric cancer but not lung cancer and suggested no significant association between -149C>T and risk of lung or gastric cancer. Collectively, DNMT3B -579G>T polymorphism is associated with gastric cancer risk in Chinese population, and the -579G>T may be used as a genetic biomarker to predict the risk of gastric cancer in Chinese population. PMID- 29332450 TI - Identification and Comparison of Differentiation-Related Proteins in Hepatocellular Carcinoma Tissues by Proteomics. AB - Histological differentiation is a major pathological criterion indicating the risk of tumor invasion and metastasis in patients with hepatocellular carcinoma. The degree of tumor differentiation is controlled by a complex interacting network of associated proteins. The principal aim of the present study is to identify the possible differentiation-related proteins which may be used for early diagnosis and more effective therapies. We compared poorly differentiated and well-differentiated hepatocellular carcinoma tissues by using 2-dimensional gel electrophoresis and matrix-assisted laser desorption ionization time-of flight mass spectrometry. Among the 11 identified protein spots, 6 were found to be upregulated in poorly differentiated hepatocellular carcinoma tissues and 5 were correspondingly downregulated. Immunohistochemistry was performed on 106 hepatocellular carcinoma tissues to confirm the results of the proteomic analysis. By using bioinformatic tools GO and STRING, these proteins were found to be related to catalytic activity, binding, and antioxidant activity. In particular, our data suggest that overexpression of peroxiredoxin-2, annexin A2, and heat shock protein beta-1 was correlated with tumor invasion, metastasis, and poor prognosis, and therefore, these proteins may serve as potential diagnostic and therapeutic biomarkers. PMID- 29332454 TI - Intrafractional Tracking Accuracy of a Transperineal Ultrasound Image Guidance System for Prostate Radiotherapy. AB - PURPOSE: The aim of this study is to evaluate the tracking accuracy of a commercial ultrasound system under relevant treatment conditions and demonstrate its clinical utility for detecting significant treatment deviations arising from inadvertent intrafractional target motion. METHODS: A multimodality male pelvic phantom was used to simulate prostate image-guided radiotherapy with the system under evaluation. Target motion was simulated by placing the phantom on a motion platform. The tracking accuracy of the ultrasound system was evaluated using an independent optical tracking system under the conditions of beam-on, beam-off, poor image quality with an acoustic shadow introduced, and different phantom motion cycles. The time delay between the ultrasound-detected and actual phantom motion was investigated. A clinical case example of prostate treatment is presented as a demonstration of the utility of the system in practice. RESULTS: Time delay between the motion phantom and ultrasound tracking system is 223 +/- 45.2 milliseconds including video and optical tracking system frame rates. The tracking accuracy and precision were better with a longer period. The precision of ultrasound tracking performance in the axial (superior-inferior) direction was better than that in the lateral (left-right) direction (root mean square errors are 0.18 and 0.25 mm, respectively). The accuracy of ultrasound tracking performance in the lateral direction was better than that in the axial direction (the mean position errors are 0.23 and 0.45 mm, respectively). Interference by radiation and image quality do not affect tracking ability significantly. Further, utilizing the tracking system as part of a clinical study for prostate treatment further verified the accuracy and clinical appropriateness. CONCLUSIONS: It is feasible to use transperineal ultrasound daily to monitor prostate motion during treatment. Our results verify the accuracy and precision of an ultrasound system under typical external beam treatment conditions and further demonstrate that the tracking system was able to identify important prostate shifts in a clinical case. PMID- 29332453 TI - MRI-Related Geometric Distortions in Stereotactic Radiotherapy Treatment Planning: Evaluation and Dosimetric Impact. AB - In view of their superior soft tissue contrast compared to computed tomography, magnetic resonance images are commonly involved in stereotactic radiosurgery/radiotherapy applications for target delineation purposes. It is known, however, that magnetic resonance images are geometrically distorted, thus deteriorating dose delivery accuracy. The present work focuses on the assessment of geometric distortion inherent in magnetic resonance images used in stereotactic radiosurgery/radiotherapy treatment planning and attempts to quantitively evaluate the consequent impact on dose delivery. The geometric distortions for 3 clinical magnetic resonance protocols (at both 1.5 and 3.0 T) used for stereotactic radiosurgery/radiotherapy treatment planning were evaluated using a recently proposed phantom and methodology. Areas of increased distortion were identified at the edges of the imaged volume which was comparable to a brain scan. Although mean absolute distortion did not exceed 0.5 mm on any spatial axis, maximum detected control point disposition reached 2 mm. In an effort to establish what could be considered as acceptable geometric uncertainty, highly conformal plans were utilized to irradiate targets of different diameters (5-50 mm). The targets were mispositioned by 0.5 up to 3 mm, and dose-volume histograms and plan quality indices clinically used for plan evaluation and acceptance were derived and used to investigate the effect of geometrical uncertainty (distortion) on dose delivery accuracy and plan quality. The latter was found to be strongly dependent on target size. For targets less than 20 mm in diameter, a spatial disposition of the order of 1 mm could significantly affect (>5%) plan acceptance/quality indices. For targets with diameter greater than 2 cm, the corresponding disposition was found greater than 1.5 mm. Overall results of this work suggest that efficacy of stereotactic radiosurgery/radiotherapy applications could be compromised in case of very small targets lying distant from the scanner's isocenter (eg, the periphery of the brain). PMID- 29332457 TI - REPAIR AND REATTACHMENT IN THE BALANIDAE AS RELATED TO THEIR CEMENTING MECHANISM. AB - Barnacles, which become partially or totally detached from their substratum in a natural environment, produce a secondary cement secretion. Laboratory experiments demonstrate that the secondary cement can successfully reattach the barnacle to a new substratum. Similar secondary secretion was found at the site of minor injuries to the barnacle basis. The secondary cement usually has a looser, more cavernous structure than the primary cement, but both secretions have similar staining characteristics. Microscope preparations indicate that occasionally barnacles are capable of developing new secondary cement ducts leading into the injured or detached areas to secrete secondary cement. In most cases, however, the existing primary cement duct network is used for the secondary secretion. This is possible only because most of the once used ducts are not plugged by hardened cement, in spite of the fact that the cement can harden inside the ducts. Chemical analysis suggests that the cement is an organic biopolymer and indications are that the cement hardening is initiated inside the organism. A unique flushing mechanism seems to be responsible for keeping the cement ducts open and ready for reuse. A nonhardening flushing fluid forces the still liquid cement out of the ducts. The cement hardens outside the duct openings sealing the flushing fluid inside the duct network. In case of detachment or injury. the cement seal breaks; the flushing fluid drains out leaving the duct open for the secondary cement secretion. The vesicles in conjunction with the main channel control the flow of the flushing fluid and the cement. The permeable wall of the main channel portion inside the vesicle reduces the convection and diffusion between the vesicle and the main channel, thus bypassing of vesicles and duct networks not affected by detachment is possible. The wall of the main channel inside the vesicle is also collapsible, thus acting as checkvalve when the vesicle is under pressure and allowing the cement to be pumped only into the ducts toward the secretory orifices. PMID- 29332459 TI - ABSTRACTS OF PAPERS PRESENTED AT THE MARINE BIOLOGICAL LABORATORY 1970. PMID- 29332458 TI - THE APPARENT WATER-PERMEABILITY OF CARCINUS MAENAS (CRUSTACEA, BRACHYURA, PORTUNIDAE) AS A FUNCTION OF SALINITY. AB - 1. The apparent water-permeability of Carcinus maenas, as measured by D2O influx, is 2-3 times higher than that of the more euryhaline crab Rhithropanopeus. 2. Like Rhithropanopeus, Carcinus shows a reduction of water-exchange rate at lower salinities. The highest hourly water-exchange fraction is in 75% SW (K = 2.73), the lowest in 30% SW (K = 1.76); values refer to a crab with wet weight of 10 g, at 18 degrees C. 3. The calculated net diffusional (osmotic) water influx is adequate to account for the urine production of Carcinus in 50-70% SW, but does not account for urine production in SW, and only inadequately for the urine produced in 30-40% SW, and it seems necessary to postulate some isotonic transport of water. PMID- 29332456 TI - The Combined Antitumor Effects of 125I Radioactive Particle Implantation and Cytokine-Induced Killer Cell Therapy on Xenograft Hepatocellular Carcinoma in a Mouse Model. AB - The combination of radiotherapy and immunotherapy has shown great promise in eradicating tumors. For example, 125I radioactive particle implantation and cytokine-induced killer cell therapies have demonstrated efficacy in treating hepatocellular carcinoma. However, the mechanism of this combination therapy remains unknown. In this study, we utilized cytokine-induced killer cells obtained from human peripheral blood mononuclear cells along with 125I radioactive particle implantation to treat subcutaneous hepatocellular carcinoma xenograft tumors in BALB/c nude mice. The effects of combination therapy on tumor growth, tumor cell apoptosis and proliferation, animal survival, and immune indexes were then assessed. The results indicated that 125I radioactive particle implantation combined with cytokine-induced killer cells shows a much greater antitumor therapeutic effect than either of the therapies alone when compared to control treatments. Mice treated with a combination of radiotherapy and immunotherapy displayed significantly reduced tumor growth. 125I radioactive particle implantation upregulated the expression of major histocompatibility complex (MHC) class I chain-related gene A in hepatocellular carcinoma cells and enhanced cytokine-induced killer cell-mediated apoptosis through activation of caspase-3. Furthermore, cytokine-induced killer cells supplied immune substrates to induce a strong immune response after 125I radioactive particle implantation therapy. In conclusion, 125I radioactive particle implantation combined with cytokine-induced killer cell therapy significantly inhibits the growth of human hepatocellular carcinoma cells in vivo and improves animal survival times through mutual promotion of antitumor immunity, presenting a promising therapy for hepatocellular carcinoma. PMID- 29332461 TI - FILTRATION OF PARTICLES FROM SUSPENSION BY THE AMERICAN OYSTER CRASSOSTREA VIRGINICA. AB - 1. Particle filtration by the oyster Crassostrea virginica was studied in the 1.0 to 12.0 u size range in relation to naturally occurring particles and to kaolinite suspensions in filtered river water. 2. Oysters were held in troughs of flowing water under conditions similar to their natural environment. Particle number and volumes entering and leaving the troughs were enumerated using a Coulter electronic particle counter. Particle diameter was expressed as that of a sphere having a volume equal to the particle. 3. Results of the study were expressed as per cent of total particles removed in various size increments or in volumes removed over the same size range. 4. Oysters filtered naturally occurring particles in the 1.0 to 3.0 u range with about one-third the efficiency as larger particles. Above 3.0 u there was no change in efficiency with increasing particle size. For kaolinite particles, oysters removed particles in the 1.0 to 2.0 u range with about half the efficiency as larger particles. Above this size there was no change. 5. When results are expressed in terms of per cent removal, the importance of the small sized particles is minimized. In terms of volume, particles in the 1.0 to 3.0 u range constitute the largest single size fraction over the 1.0 to 12.0 u range. 6. The consistent presence of an inflection point at a particle size around 2.0- 3.0 u in the curve for per cent removed vs. particle size is an indication that the distance between adjacent latero-frontal cilia is the factor that determines the smallest particle size that can be completely retained by the oyster gill. 7. Presence of the inflection point is also interpreted as negating the existence of a mucous sheet over the gills, as suggested by MacGinitie (1941). 8. Particles in the 1.0 to 3.0 u range may play an important role in the nutrition of oysters and other lamellibranchs. Their removal by these organisms may also be an important factor in sedimentary processes. PMID- 29332455 TI - DNA Repair Mechanism Gene, XRCC1A ( Arg194Trp) but not XRCC3 ( Thr241Met) Polymorphism Increased the Risk of Breast Cancer in Premenopausal Females: A Case Control Study in Northeastern Region of India. AB - X-ray repair cross complementary group gene is one of the most studied candidate gene involved in different types of cancers. Studies have shown that X-ray repair cross complementary genes are significantly associated with increased risk of breast cancer in females. Moreover, studies have revealed that X-ray repair cross complementary gene polymorphism significantly varies between and within different ethnic groups globally. The present case-control study was aimed to investigate the association of X-ray repair cross complementary 1A (Arg194Trp) and X-ray repair cross complementary 3 (Thr241Met) polymorphism with the risk of breast cancer in females from northeastern region of India. The present case-control study includes histopathologically confirmed and newly diagnosed 464 cases with breast cancer and 534 apparently healthy neighborhood community controls. Information on sociodemographic factors and putative risk factors were collected from each study participant by conducting face-to-face interviews. Genotyping of X-ray repair cross complementary 1A (Arg194Trp) and X-ray repair cross complementary 3 (Thr241Met) was carried out by polymerase chain reaction restriction fragment length polymorphism. For statistical analysis, both univariate and multivariate logistic regression analyses were performed. We also performed stratified analysis to find out the association of X-ray repair cross complementary genes with the risk of breast cancer stratified based on menstrual status. This study revealed that tryptophan allele (R/W-W/W genotype) in X-ray repair cross complementary 1A (Arg194Trp) gene significantly increased the risk of breast cancer (adjusted odds ratio = 1.44, 95% confidence interval = 1.06 1.97, P < .05 for R/W-W/W genotype). Moreover, it was found that tryptophan allele (W/W genotype) at codon 194 of X-ray repair cross complementary 1A (Arg194Trp) gene significantly increased the risk of breast cancer in premenopausal females (crude odds ratio = 1.66, 95% confidence interval = 1.11 2.46, P < .05 for R/W-W/W genotype). The present study did not reveal any significant association of X-ray repair cross complementary 3 (Thr241Met) polymorphism with the risk of breast cancer. The present study has explored that X-ray repair cross complementary 1A (Arg194Trp) gene polymorphism is significantly associated with the increased risk of breast cancer in premenopausal females from northeastern region of India which may be beneficial for prognostic purposes. PMID- 29332460 TI - ACETYLCHOLINESTERASE ACTIVITY IN ESERINE-TREATED ASCIDIAN EMBRYOS. AB - 1. The use of specific cholinesterase inhibitors and substrates demonstrated that the enzyme activity in Ciona intestinalis larvae is an acetylcholinesterase. 2. Eggs treated with eserine sulfate (an acetylcholinesterase inhibitor) for one hour prior to fertilization developed into larvae with defective muscular movements and greatly reduced levels of acetylcholinesterase activity. 3. Two kinds of experiments show that this reduced enzyme activity was caused by the retention of eserine and not by inhibition of acetylcholinesterase synthesis. Homogenates of embryos from eserine-treated eggs inhibit acetylcholinesterase activity when mixed with homogenates of control embryos. Full enzyme activity in homogenates of the experimental embryos could be recovered by dialysis. PMID- 29332462 TI - STUDIES ON THE BIOLUMINESCENCE OF THE MARINE OSTRACOD CRUSTACEAN CYPRIDINA SERRATA. AB - 1. The physical appearance and bioluminescence behavior, and light-emitting reaction of the marine ostracod crustacean, Cypridina serrata, are described. 2. In the natural environment of the sea, the free-swimming C. serrata appears to emit almost instantaneously a bright blue luminous cloud when stimulated with artificial light. 3. The method of light production, consisting of the ejection of luciferin and luciferase into sea water, and the color of light are similar to that of C. hilgendorfii. 4. In captivity, C. serrata emits apparent spontaneous flashes of light, whose duration is approximately 1.5 seconds, with an apparent latency of 500-800 milliseconds. 5. C. serrata luciferase cannot be distinguished from C. hilgendorfii luciferase by gel elution chromatography but may be distinguished immunochemically. 6. The luminescence of C. serrata is due to a first order reaction, similar to that of C. hilgendorfii. The luciferins and luciferases of both organisms cross-react to give light. 7. The luminescence of C. serrata, like C. hilgendorfii, is oxygen dependent. 8. C. serrata luciferin is similar, if not identical, to C. hilgendorfii luciferin when compared by paper chromatography. PMID- 29332463 TI - CHANGES IN MICROTUBULES OF CILIA AND FLAGELLA FOLLOWING NEGATIVE STAINING WITH PHOSPHOTUNGSTIC ACID. AB - 1. Variability in the macerating action of 1% aqueous phosphotungstic acid, pH 6.8, is exemplified in microtubules of flatworm and rhynchocoel cilia, from one grid square to another of the same preparation and within a single grid square. The central singlets appear to be the most susceptible and are often completely absent, even in cases where the binding matrix is still present around the doublets. Maceration usually, but not always, begins at the distal tip of a cilium and proceeds towards the basal plate; it is evident along the lengths of doublets as partial or complete loss of one subtubule, as breaks and bends, and as fraying into the component protofibrils, with disappearance of the white line marking the wall between the subtubules. 2. Cortical singlet microtubules of a spermatozoon were thrown into a helical configuration by the action of PTA, while the flagellar microtubules of the same spermatozoon were unaffected. 3. After treatment with 1% PTA at pH 8.3, the central singlets of cilia (but not the doublets) were semi-fused along most of their lengths, and had a beaded appearance; there were breaks in the doublets but otherwise they appeared to be unaffected. 4. Ciliary rootlets were rarely seen, but when present had a clear 790 A major repeating pattern and a longitudinal fibrous substructure. PMID- 29332464 TI - THE ORIGIN, DISTRIBUTION AND FATE OF THE MOLTING FLUID PROTEINS OF THE CECROPIA SILKWORM. AB - 1. Molting in insects is always accompanied by the production of a molting fluid which fills the exuvial space between the new and the old cuticle and digests the inner layers of the old cuticle. In Hyalophora cecropia, molting fluid is secreted at the outset of adult development and persists until two days before eclosion, whereupon it is absorbed. 2. The present report examines the protein composition of the molting fluid of Cecropia, the origin of the molting fluid proteins, the relation of these proteins to blood proteins and the exchange of macromolecules between the molting fluid and the blood. It also examines the sites of absorption of molting fluid. 3. Disc electrophoresis on acrylamide gels reveals that the molting fluid of Cecropia contains about fifteen protein bands which can be resolved at pH 8.6. Some of these protein bands are detected in the molting fluid at all stages, whereas others appear only at specific times. About ten of the bands are peculiar to molting fluid and are not detected in the blood. About five bands are detectable in both blood and molting fluid, but none of these common bands appears to be a major component of the molting fluid, and only one is a major blood protein. In contrast, the epidermis contains most of the major protein bands found in molting fluid but lacks all but one of the major protein bands present in the blood. 4. Immunological analysis reveals that blood and molting fluid share five antigens. At least four of these common antigens also occur in the epidermis which appears to secrete these antigens into both the molting fluid and the blood. 5. Native and foreign proteins do not penetrate from the exuvial space into the blood or vice versa. Apparently the epidermis and cuticle act as a barrier to the exchange of most macromolecules between the blood and molting fluid. The exuvial space is clearly a separate fluid compartment. 6. In addition the exuvial space itself is compartmentalized and the fluids in the compartments do not admix several days before eclosion. 7. Absorption of molting fluid during the final two days of adult development occurs most readily through particular regions of the integument. In the abdomen the principal sites of absorption are pits which represent the points through which tonofibrils make attachment to the old cuticle. Two days before ecdysis, the attachments between the tonofibrils and the pupal cuticle rupture, exposing the points of attachment on the new cuticle. It is through these exposed surfaces that much of the molting fluid is absorbed. Molting fluid is also absorbed in the head and thorax through various flexible membranes at the bases of the appendages. PMID- 29332465 TI - CHANGES IN THE EPIDERMAL HISTOLOGY DURING THE SLOUGHING CYCLE IN THE RAT SNAKE PTYAS KORROS SCHLEGEL, WITH CORRELATED OBSERVATIONS ON THE THYROID GLAND. AB - 1. Study of the epidermal histology throughout the sloughing cycle in the snake Ptyas korros revealed the existence of a well-defined mesos layer and showed that the alpha-layer is completed in the immediate post-shedding resting-phase. These observations supplement previous histological studies of the snake epidermis and further substantiate the essential homology of the epidermal generation in these forms with similar units in lizards. 2. Thyroid weight is not correlated with follicular cell height nor with epidermal cell changes throughout the sloughing cycle. 3. Changes in follicular cell height, indicative of varying levels of gland activity can be correlated with epidermal changes. The shedding complex and the outermost portions of the new inner epidermal generation differentiate during a period of lowest thyroid gland activity: gland activity is highest around sloughing. 4. These results provide a possible explanation for previous experimental studies of thyroid-sloughing relations in snakes. The problem of the difference between snakes and lizards in this context is discussed. PMID- 29332466 TI - A GENERAL METHOD FOR THE MONOXENIC CULTIVATION OF THE DAPHNIDAE. AB - Fourteen species of the family Daphnidae have been established under continuous monoxenic cultivation utilizing Chlamydomonas reinhardii as sole food organism in a medium consisting of calcium acetate, antibiotics, albumin, trace elements and the water soluble vitamins, folic acid, B12, calcium pantothenate, choline, pyridoxal, inositol, thiamin, nicotinamide, riboflavin, biotin and putrescine. The Daphnidae under cultivation include Daphnia magna, D. pulex, D. galeata mendotae, D. laevis, D. dubia, D. retrocurva, D. parvula, D. ambigua, D. catawba, Moina macrocopa Scapholeberis mucronata, Simocephalus serrulatus, Ceriodaphnia reticulata, and C. quadrangula. The requirements for vitamins for some species are more complex than for others. The complete medium is superior for all but Scapholeberis mucronata and markedly increases the lifespan and fertility of Moina macrocopa. PMID- 29332467 TI - Is Hippocampal Avoidance During Whole-Brain Radiotherapy Risky for Patients With Small-Cell Lung Cancer? Hippocampal Metastasis Rate and Associated Risk Factors. AB - OBJECTIVES: Hippocampal avoidance during whole-brain radiotherapy is performed to prevent neural stem cell injury causing neurocognitive dysfunction. Nevertheless, the estimated risk of metastases in hippocampal avoidance area in small-cell lung cancer is unknown. The current study aimed to characterize the metastatic distribution within the brain relative to the hippocampus, estimate the incidence of hippocampal metastasis in patients with small-cell lung cancer, and identify clinical and radiographic variables that may be associated with the risk of hippocampal avoidance area metastasis. MATERIALS AND METHODS: Patients with small cell lung cancer treated with therapeutic whole-brain radiotherapy between January 2010 and December 2015 were reviewed. T1-weighted, postcontrast axial magnetic resonance images obtained just before therapeutic cranial irradiation were retrieved and reviewed for each patient. The hippocampal avoidance area was defined as hippocampus and 5-mm ring area adjacent to the hippocampus to account for necessary dose falloff between the hippocampus and the whole-brain planning target volume. Metastatic lesions within hippocampal avoidance area were defined as hippocampal metastasis. Hippocampal metastasis rate and characteristics of patients with hippocampal metastasis were analyzed and compared to patients without hippocampal metastasis. RESULTS: Fifty-four patients evaluated with cranial magnetic resonance imaging were enrolled. Hippocampal metastasis rate was 32% (17 patients). A total of 4.4% of all metastases involved the hippocampal avoidance area. The most common location was frontal lobe. Being younger than 65 years of age was found to be an independent risk factor for HM (odds ratio: 4.8, 95% confidence interval: 1-23.2, P = .049). The number of brain metastases was significantly higher in patients with hippocampal metastasis ( P = .027), and hippocampal metastasis rate was also higher in patients having larger hippocampus ( P = .026) and larger brain volumes ( P = .02). CONCLUSION: Hippocampal metastasis might be more common in small-cell lung cancer. Reducing the dose to the hippocampus by hippocampal avoiding whole-brain radiotherapy plan in small cell lung cancer may be risky for the development of HM compared with other malignant solid tumors. PMID- 29332469 TI - Balance Regularity Among Former High School Football Players With or Without a History of Concussion. AB - CONTEXT: Subclinical postural-control changes may persist beyond the point when athletes are considered clinically recovered postconcussion. OBJECTIVE: To compare postural-control performance between former high school football players with or without a history of concussion using linear and nonlinear metrics. DESIGN: Case-control study. SETTING: Clinical research laboratory. PATIENTS OR OTHER PARTICIPANTS: A total of 11 former high school football players (age range, 45-60 years) with 2 or more concussions and 11 age- and height-matched former high school football players without a history of concussion. No participant had college or professional football experience. MAIN OUTCOME MEASURE(S): Participants completed the Sensory Organization Test. We compared postural control (linear: equilibrium scores; nonlinear: sample and multiscale entropy) between groups using a 2 * 3 analysis of variance across conditions 4 to 6 (4: eyes open, sway-referenced platform; 5: eyes closed, sway-referenced platform; 6: eyes open, sway-referenced surround and platform). RESULTS: We observed a group-by-condition interaction effect for medial-lateral sample entropy ( F2,40 = 3.26, P = .049, etap2 = 0.140). Participants with a history of concussion presented with more regular medial-lateral sample entropy values (0.90 +/- 0.41) for condition 5 than participants without a history of concussion (1.30 +/- 0.35; mean difference = -0.40; 95% confidence interval [CI] = -0.74, -0.06; t20 = -2.48, P = .02), but conditions 4 (mean difference = -0.11; 95% CI: -0.37, 0.15; t20 = -0.86, P = .40) and 6 (mean difference = -0.25; 95% CI: -0.55, 0.06; t20 = -1.66, P = .11) did not differ between groups. CONCLUSIONS: Postconcussion deficits, detected using nonlinear metrics, may persist long after injury resolution. Subclinical concussion deficits may persist for years beyond clinical concussion recovery. PMID- 29332468 TI - Local Radiotherapy Affects Drug Pharmacokinetics-Exploration of a Neglected but Significant Uncertainty of Cancer Therapy. AB - PURPOSE: Concurrent chemoradiation therapy is the mainstay of treatment for many types of malignancies. However, concurrent chemoradiation therapy is associated with a greater number of systemic adverse effects than radiotherapy or chemotherapy alone. SUMMARY: Pharmacokinetics is the study of a drug and/or its metabolite kinetics in the body, including absorption, distribution, metabolism, and elimination. The incidences of adverse effects are markedly higher in patients who receive concurrent chemoradiation therapy than in those who receive either radiotherapy or chemotherapy alone. This phenomenon implies that irradiation affects the pharmacokinetics of cytotoxic agents, namely the radiotherapy-pharmacokinetic phenomenon. Experimental animal studies have shown that local irradiation affects the systemic pharmacokinetics of 5-fluorouracil and cisplatin at both low dose (simulating generous dose distributed to normal tissues) and daily practice dose (mimicking therapeutic dose to target volumes). These effects are significant in the circulation of blood and lymphatic system as well as in the hepatobiliary excretion. Furthermore, recent studies have demonstrated that matrix metalloproteinase-8 plays an important role in the radiotherapy-pharmacokinetic phenomenon. CONCLUSION: In the present review, we provide a general overview of the radiotherapy-pharmacokinetic phenomenon and discuss the possible mechanisms governing the phenomenon. PMID- 29332470 TI - A School-Based Neuromuscular Training Program and Sport-Related Injury Incidence: A Prospective Randomized Controlled Clinical Trial. AB - CONTEXT: An estimated 40 million school-aged children (age range = 5-18 years) participate annually in sports in the United States, generating approximately 4 million sport-related injuries and requiring 2.6 million emergency department visits at a cost of nearly $2 billion. OBJECTIVE: To determine the effects of a school-based neuromuscular training (NMT) program on sport-related injury incidence across 3 sports at the high school and middle school levels, focusing particularly on knee and ankle injuries. DESIGN: Randomized controlled clinical trial. SETTING: A total of 5 middle schools and 4 high schools in a single county public school district. PATIENTS OR OTHER PARTICIPANTS: A total of 474 girls (222 middle school, 252 high school; age = 14.0 +/- 1.7 years, height = 161.0 +/- 8.1 cm, mass = 55.4 +/- 12.2 kg) were cluster randomized to an NMT (CORE; n = 259 athletes) or sham (SHAM; n = 215 athletes) intervention group by team within each sport (basketball, soccer, and volleyball). INTERVENTION(S): The CORE intervention consisted of exercises focused on the trunk and lower extremity, whereas the SHAM protocol consisted of resisted running using elastic bands. Each intervention was implemented at the start of the season and continued until the last competition. An athletic trainer evaluated athletes weekly for sport-related injuries. The coach recorded each athlete-exposure (AE), which was defined as 1 athlete participating in 1 coach-directed session (game or practice). MAIN OUTCOME MEASURE(S): Injury rates were calculated overall, by sport, and by competition level. We also calculated rates of specific knee and ankle injuries. A mixed-model approach was used to account for multiple injuries per athlete. RESULTS: Overall, the CORE group reported 107 injuries (rate = 5.34 injuries/1000 AEs), and the SHAM group reported 134 injuries (rate = 8.54 injuries/1000 AEs; F1,578 = 18.65, P < .001). Basketball (rate = 4.99 injuries/1000 AEs) and volleyball (rate = 5.74 injuries/1000 AEs) athletes in the CORE group demonstrated lower injury incidences than basketball (rate = 7.72 injuries/1000 AEs) and volleyball (rate = 11.63 injuries/1000 AEs; F1,275 = 9.46, P = .002 and F1,149 = 11.36, P = .001, respectively) athletes in the SHAM group. The CORE intervention appeared to have a greater protective effect on knee injuries at the middle school level (knee-injury incidence rate = 4.16 injuries/1000 AEs) than the SHAM intervention (knee-injury incidence rate = 7.04 injuries/1000 AEs; F1,261 = 5.36, P = .02). We did not observe differences between groups for ankle injuries ( F1,578 = 1.02, P = .31). CONCLUSIONS: Participation in an NMT intervention program resulted in a reduced injury incidence relative to participation in a SHAM intervention. This protective benefit of NMT was demonstrated at both the high school and middle school levels. PMID- 29332471 TI - Fatal Exertional Heat Stroke and American Football Players: The Need for Regional Heat-Safety Guidelines. AB - CONTEXT: Weather-based activity modification in athletics is an important way to minimize heat illnesses. However, many commonly used heat-safety guidelines include a uniform set of heat-stress thresholds that do not account for geographic differences in acclimatization. OBJECTIVE: To determine if heat related fatalities among American football players occurred on days with unusually stressful weather conditions based on the local climate and to assess the need for regional heat-safety guidelines. DESIGN: Cross-sectional study. SETTING: Data from incidents of fatal exertional heat stroke (EHS) in American football players were obtained from the National Center for Catastrophic Sport Injury Research and the Korey Stringer Institute. PATIENTS OR OTHER PARTICIPANTS: Sixty-one American football players at all levels of competition with fatal EHSs from 1980 to 2014. MAIN OUTCOME MEASURE(S): We used the wet bulb globe temperature (WBGT) and a z-score WBGT standardized to local climate conditions from 1991 to 2010 to assess the absolute and relative magnitudes of heat stress, respectively. RESULTS: We observed a poleward decrease in exposure WBGTs during fatal EHSs. In milder climates, 80% of cases occurred at above-average WBGTs, and 50% occurred at WBGTs greater than 1 standard deviation from the long-term mean; however, in hotter climates, half of the cases occurred at near average or below average WBGTs. CONCLUSIONS: The combination of lower exposure WBGTs and frequent extreme climatic values in milder climates during fatal EHSs indicates the need for regional activity-modification guidelines with lower, climatically appropriate weather-based thresholds. Established activity-modification guidelines, such as those from the American College of Sports Medicine, work well in the hotter climates, such as the southern United States, where hot and humid weather conditions are common. PMID- 29332472 TI - Statistical Primer for Athletic Trainers: The Essentials of Understanding Measures of Reliability and Minimal Important Change. AB - OBJECTIVE: To describe the concepts of measurement reliability and minimal important change. BACKGROUND: All measurements have some magnitude of error. Because clinical practice involves measurement, clinicians need to understand measurement reliability. The reliability of an instrument is integral in determining if a change in patient status is meaningful. DESCRIPTION: Measurement reliability is the extent to which a test result is consistent and free of error. Three perspectives of reliability-relative reliability, systematic bias, and absolute reliability-are often reported. However, absolute reliability statistics, such as the minimal detectable difference, are most relevant to clinicians because they provide an expected error estimate. The minimal important difference is the smallest change in a treatment outcome that the patient would identify as important. RECOMMENDATIONS: Clinicians should use absolute reliability characteristics, preferably the minimal detectable difference, to determine the extent of error around a patient's measurement. The minimal detectable difference, coupled with an appropriately estimated minimal important difference, can assist the practitioner in identifying clinically meaningful changes in patients. PMID- 29332474 TI - THE MARINE BIOLOGICAL LABORATORY. PMID- 29332473 TI - THE NUTRITION OF PARANEMERTES PEREGRINA (RHYNCHOCOELA: HOPLONEMERTEA). II. OBSERVATIONS ON THE STRUCTURE OF THE GUT AND PROBOSCIS, SITE AND SEQUENCE OF DIGESTION, AND FOOD RESERVES. AB - 1. Digestion in the hoplonemertean Paranemertes peregrina is achieved by a combination of extra- and intracellular processes. The extracellular phase, effected in an acidic medium, involves endopeptidases secreted by the gastrodermal columnar cells, and other, as yet unidentified, substances discharged from the intestinal gland cells. The semi-digested food is then phagocytosed and digestion completed intracellularly by peptidases, carbohydrases and lipases acting in harmony. Intracellular digestion is initially acid and then alkaline, with acid and alkaline phosphatases associated with the appropriate phases. 2. Nereids used as food are caught by the proboscis, and immobilized by secretions produced by the posterior proboscis gland cells. These secretions are pumped into the body of the prey via wounds caused by the central stylet. The nature of these secretions has not definitely been established, but they may contain the toxin anabaseine. 3. The anterior proboscis secretions are concerned with aiding the grip of the proboscis papillae and possibly with initiating the denaturation of the prey epidermis. 4. Acid secretions are produced by the foregut via a mechanism that does not involve carbonic anhydrase. 5. Other sites of enzymic activity have been reported, and where possible suggestions made as to their probable roles. 6. Fat forms the principal food reserve, with major deposits being stored in the gastrodermal columnar cells, but some glycogen is stored in a variety of body tissues. PMID- 29332475 TI - THE EVALUATION OF THE "CALLIPHORA TEST" AS AN ASSAY FOR ECDYSONE. AB - 1. The effect of ligation on pupariation in the front or hind parts of larvae of four species of flies, Calliphora erythrocephala, Phormia regina, Sarcophaga bullata, and S. argyrostoma was investigated. Ligation causes effects of delay or inhibition of pupariation which are very differently expressed in the four species. A large proportion of pre- or postcritically ligated specimens of P. regina and S. bullata altogether fail to pupariate in the anterior part. This makes these species unsuitable test subjects for the pupariation test for ecdysone. 2. Test abdomens of C. erythrocephala required significantly less ecdysone for a given pupariation effect when also injected with a CNS-extract. Tanning was also considerably accelerated in this case. 3. The value of the pupariation unit of ecdysone is influenced by a number of factors, such as age at the time of ligation, the waiting period between ligation and injection, the dilution effect of the solvent, and the simultaneous action of a neurohormone. The requirements for natural ecdysone in normal larvae at the time of pupariation are probably substantially lower than the values which have been determined by others with test abdomens and the use of synthetic ecdysones. 4. In confirmation of older data, and contrary to recent claims, tanning was induced in test abdomens of the larvae of C. erythrocephala, P. regina, and S. argyrostoma by the injection of hemolymph from pupariating larvae. Calliphora blood induced tanning in specimens of S. argyrostoma, and vice versa. The conclusions are drawn that differences between the different species in the action of ecdysone are of a quantitative rather than qualitative nature. PMID- 29332476 TI - CALCIFICATION IN ECHINODERMS: EFFECTS OF TEMPERATURE AND DIAMOX ON INCORPORATION OF CALCIUM-45 IN VITRO BY REGENERATING SPINES OF STRONGYLOCENTROTUS PURPURATUS. AB - 1. Calcification during regeneration of experimentally fractured spines of the sea urchin, Strongylocentrotus purpuratus (Stimpson), was studied quantitatively under different conditions with calcium-45 as a tracer. 2. Fractured spines rapidly incorporated 45Ca in vivo or in vitro after a lag period of about two days. The lag period is attributed to wound healing and reorganization of tissue at the site of fracture. 3. Additional experiments were conducted while calcification was in progress by allowing fractured spines to regenerate for four days in vivo followed by incubation in 45Ca in vivo or in vitro up to 24 hours. In these experiments incorporation of the label was nearly linear with time and no significant difference was observed in the rate of uptake of 45Ca between regenerating spines incubated in vivo and those from the same urchin incubated simultaneously in vitro. 4. Incorporation of 45Ca in vitro was directly proportional to temperature between 4.7 degrees and 20 degrees C, at which a maximum occurred. A temperature of 26 degrees C appeared to be lethal and little incorporation of 45Ca took place. Values of Q10 and the energy of activation varied inversely with temperature, with overall means of 2.72 and 15,504 calories per mole, respectively, between 4.7 degrees and 20 degrees C. 5. Diamox (acetazolamide) at concentrations from 10-3 to 10-6 M, inhibited incorporation of 45Ca in vitro by 50% to 61%. It is inferred from these results that carbonic anhydrase is involved in calcification of regenerating spines of S. purpuratus. PMID- 29332477 TI - A COMPARATIVE STUDY OF THE CEMENT GLANDS IN SOME BALANID BARNACLES (CIRRIPEDIA, BALANIDAE). AB - 1. The histological characteristics of the cement gland cells of barnacles have been compared in B. nubilis, B. psittacus, B. eburneus, B. balanoides and B. amphitrite. 2. In B. balanoides, the cement gland cells show a very simple composition; they are situated at the base of the animal and the secretion appears scattered throughout the cytoplasm. The cement apparatus of B. amphitrite and B. eburneus looks like that of B. tintinnabulum, but in B. psittacus and B. nubilis the cement gland cells appear more complex. 3. The extrusion of the cement secretion is brought about by muscle fibers that pass through the connective tissue, and in B. psittacus and B. nubilis by elastic fibers around the secondary and principal canal systems. PMID- 29332478 TI - LARVAL DEVELOPMENT OF PAGURUS LONGICARPUS SAY REARED IN THE LABORATORY, I. DESCRIPTION OF LARVAL INSTARS. PMID- 29332479 TI - LIFE CYCLE OF THE HYDROMEDUSA PHIALIDIUM GREGARIUM (A. AGASSIZ, 1862) IN THE LABORATORY. AB - 1. A method was described by which hydroid colonies, each on a microscopic slide, were raised from individual planulae of the leptomedusa known as Phialidium gregarium. 2. Growth and behavior of approximately 30 cultures were observed and quantitated through nearly 2 months. Cultures produced gonangia and medusae 3-7 weeks after fertilization of the egg. 3. Gonosome development was always preceded by a burst of hydroid development 5-9 days previously. This burst appeared to be initiated entirely by an abundant food supply (brine shrimp). 4. Medusae were liberated 4-5 days after gonangia first appeared. From the growth rate of medusae under the less than optimal laboratory conditions, it was estimated that sexual maturity may be reached in approximately 3 weeks. The lifespan of the medusae probably does not exceed 3 months. 5. A small number of cultures wintered in an open cage in the sea. At the end of November they were found in a greatly reduced state and possessed only a very few, very small hydranths. At the end of March they were in the early phases of vigorous trophosomal growth and the gonosome had just begun to flourish. 6. From the behavior of clonal colonies in the laboratory, the hypothesis was derived that the swarms of mature medusae in nature are the direct result of a "bloom" in zooplankton which occurred 5-7 weeks previously and stimulated first hydroid development and in consequence the formation of gonangia. 7. Morphological characteristics of the hydroid colonies were described and their variability under laboratory conditions recorded and discussed. It was shown that many taxonomic features such as size, branching, number of tentacles and annulations depend quantitatively on the age of the individual colony, its state of nutrition and on genetic factors. 8. The hydroid belongs to the genus Clytia (Lamouroux, 1816). A careful comparison was made with species of the genus as described for the Puget Sound region and California. It was concluded that none of these delineates unambiguously the morphological features of this hydroid. A tentative name for the hydroid was assigned according to priority principles as Clytia gregaria. It was suggested that Phialidium gregarium may be the most appropriate name for the species in both its phases. PMID- 29332480 TI - NATURAL AND SYNTHETIC MATERIALS WITH INSECT HORMONE ACTIVITY. 5. SPECIFIC JUVENILE HORMONE EFFECTS IN ALIPHATIC SESQUITERPENES. AB - The juvenile hormone activity of ethyl or methyl esters of aliphatic sesquiterpenic acids with 0 to 4 double bonds was tested on 8 species of insects belonging to 5 families of Hemiptera and Coleoptera. Special attention was paid to the addition of hydrogen chloride or epoxide groups on or across the double bonds. Certain chemical changes in the molecule appear to cause a general increase of the activity in all species studied. These are: the presence of 2,3 unsaturation conjugated with the carboxyl group; the trans stereochemical position of the C-3 methyl; an introduction of 10,11 epoxide or hydrochloride; and esterification with ethyl rather than with methyl. There are also chemical changes which lead to genus- or family-specific variations in juvenile hormone activity. With increasing amount of unsaturation the activity either remains almost unaffected (pyrrhocorid bugs) or increases (pentatomid bugs) or decreases considerably (tenebrionid and dermestid beetles). The addition of hydrogen chloride or epoxide to the 6,7 double bond causes enormous increase in the activity in the Pyrrhocoridae and Lygaeidae, no considerable change in the Pentatomidae, and great decreases in the beetles and Lepidoptera. PMID- 29332481 TI - THE NUTRITION OF PARANEMERTES PEREGRINA (RHYNCHOCOELA: HOPLONEMERTEA). I. STUDIES ON FOOD AND FEEDING BEHAVIOR. AB - 1. Paranemertes peregrina, an abundant hoplonemertean in rocky and muddy intertidal habitats of Washington, feeds on polychaetes during low tide periods. 2. Feeding by Paranemertes involves three steps. The first stage is a recoil of the Paranemertes' head upon contact with a prey. Contact must be made with the prey; Paranemertes does not find prey by distance chemoreception. The proboscis is everted and wraps around the prey in step two. The prey is temporarily paralyzed or is killed. In step three the prey is ingested by means of sucking motions from muscles around the mouth. Defecation occurs from 12 to 33 hours after feeding. 3. Specimens of Paranemertes ate mainly nereid polychaetes at the three study areas where nereids were available. At the fourth study area the nemerteans ate a wider variety of polychaetes. Experiments to test food preference showed that specimens of Paranemertes from all study areas strongly preferred nereids to members of other polychaete families. 4. Nereid polychaetes have a swimming escape response from Paranemertes. PMID- 29332482 TI - EFFECTS OF SUPERABUNDANT OXYGEN ON THERMAL TOLERANCE OF GOLDFISH. AB - A hypothesis may be made out that the respiratory/circulatory, and possibly the oxygen transport, systems are importantly involved in thermal death of goldfish. Experiments showed that at two distinct levels of temperature acclimation, superabundant oxygen in the water could produce a definite improvement either in time of survival at a fixed lethal temperature or in lethal temperature reached as a result of heating. Despite this positive effect of high oxygen a clear cut failure of oxygen, in excess of about 5 atmospheres (partial pressure), to produce further improvement in thermal tolerance suggests the failure of some critical system directly affected by temperature. The experiments, while revealing nothing of the detailed mechanisms involved, certainly do not invalidate the hypothesis proposed, and open a way to further investigation. PMID- 29332483 TI - ENVIRONMENTAL TEMPERATURE AND THYROID ACTIVITY IN THE LIZARD, SCELOPORUS OCCIDENTALIS. AB - The relationship between temperature and the hypophyseal-thyroidal axis in Sceloporus occidentalis has been investigated by a study of radioiodine incorporation by the thyroid in intact animals, and animals with the pars distalis removed, kept at temperatures of 15 degrees , 21 degrees , 30 degrees and 38 degrees C. Over the range of 21 to 38 degrees C there was no evidence of any significant temperature-related change in the normal and experimental animals, although the thyroid activity was reduced after the operation. At 15 degrees C the thyroid functioning was significantly inhibited and there was no difference between the normal and experimental animals. It is suggested that the role of temperature in thyroid activation is a permissive one. Data for I131 incorporation in hypophysectomized animals receiving TSH therapy offers a possible explanation for the different patterns of thyroidal I131 accumulation observed in different forms of lizards. PMID- 29332484 TI - EMERSION OF THE AMPHIBIOUS CHILEAN CLINGFISH, SICYASES SANGUINEUS. AB - The amphibious clingfish Sicyases sanguineus attaches by means of its ventral sucker to vertical surfaces of large exposed rocks splashed by the cool and heavy surf of Chile and southern Peru. Although adult and halfgrown fish tolerate diluted seawater and can survive at least a few hours in warm and stagnant water, they seldom, if ever, occur in isolated tidal pools, bays, or estuaries. Factor analysis indicates that clingfish come out of the water more abundantly during periods of calm and often turn head-down. They avoid drying rocks outside the spray zone and emerge onto higher rocks as the water level rises. Adult fish come out of the water more abundantly in remote areas relatively undisturbed by civilization. Insolation apparently does not directly alter the abundance of clingfish, which act so as to minimize evaporative water loss and overheating. Terrestrial fish breathe air held in their gill cavities, probably through their gills. As they come out of the water, fish gulp air, then stop all opercular movements to seal their cavities, and often turn head-down. This positioning may facilitate airbreathing by easing the expulsion of spent gas upward through the watery gill cavities and by shading an area of delicate respiratory epithelium under the chin. The volume percentage oxygen in gas expelled into a viscous solution of resin in sea water decreased regularly for about 12 minutes in a young fish, about 30 minutes in a halfgrown fish, and about one hour in an adult before these fish renewed their branchial gas. Although a concomitant increase in percentage carbon dioxide indicated that the branchial gas contributed to respiration, rates of oxygen uptake calculated from modal volumes of expelled gas were only about 12-30% of the fish's total long-term rate in air as determined by other investigators. As in other airbreathing fishes, however, cutaneous respiration may supplement branchial respiration, which fills the total need only when the metabolic rate falls. Exposure of their head apparently stimulates clingfish to gulp, so that atmospheric air, rather than aquatic hypoxia, is their primary stimulation to airbreathing. Fish in stagnating water do not necessarily emerge and occasionally remain under water until they suffocate. Like other airbreathing fishes, clingfish appear insensitive to relatively large proportions of carbon dioxide in their branchial gas. And even with their opercles closed and their ventral mouths pressed against the substrate, clingfish in the field should easily eliminate excess carbon dioxide through their wet skin. Vargas and Concha (1957a) emphasized the ontogenesis of terrestriality in clingfish from erratic young to well-regulated adult: modification of gill surface to minimize clumping, control of aerial oxygen uptake, and greater composure on land. The present study indicates that exposure of an anteroventral respiratory membrane, assumption of a head-down position, improvement of gulping technique, control and slowing of ventilation, and greater efficiency of exchange between branchial gas and blood also contribute critically to the maturing fish's increasing independence of aquatic life. PMID- 29332486 TI - PSPB Editorial Philosophy. PMID- 29332485 TI - Relationship between neutrophil/lymphocyte ratio and epicardial fat tissue thickness in patients with newly diagnosed hypertension. AB - Objective Epicardial fat tissue thickness (EFT) and the neutrophil/lymphocyte ratio (NLR) are associated with atherosclerosis. Few studies have focused on the relationship between these parameters in patients with newly diagnosed hypertension. In this study, we examined the relationship between EFT and the NLR in patients with newly diagnosed hypertension detected by 24-hour ambulatory blood pressure monitoring (ABPM). Methods Eighty consecutive patients without chronic illness who were diagnosed with hypertension according to ABPM results and 80 otherwise healthy subjects were enrolled in the study. EFT of each participant was measured echocardiographically. The C-reactive protein (CRP) concentration and NLR were measured from venous blood samples. Results The 24 hour average systolic blood pressure was significantly higher in the hypertension group than in the control group (143+/-17 vs. 117+/-7 mmHg, respectively). There were no significant differences in age, sex, or body mass index between the two groups. EFT, the NLR, and the CRP concentration were significantly higher in the hypertension group than control group. Additionally, a significantly positive correlation between EFT and the NLR was found in both the control group and hypertension group. Conclusion A higher EFT and NLR were detected in patients with newly diagnosed hypertension than in healthy subjects. PMID- 29332487 TI - The Prototypical Majority Effect Under Social Influence. AB - Majority views are reported with greater confidence and fluency than minority views, with the difference increasing with majority size. This Prototypical Majority Effect (PME) was attributed generally to conformity pressure, but Koriat et al. showed that it can arise from the processes underlying decision and confidence independent of social influence. Here we examined the PME under conditions that differ in social influence. In Experiment 1, a robust PME emerged in the absence of information about the majority views, but the provision sof that information increased the choice of the majority view and magnified the PME. In Experiment 2, a PME emerged in a minority-biased condition that misled participants to believe that the majority view was the minority view, but the PME was stronger in a majority-biased condition. The results were discussed in terms of a dual-process view: The PME observed under social influence may contain externally driven and internally driven components. PMID- 29332489 TI - Thermoacoustic Lensing in Ultrasound Imaging of Nonechogenic Tissue During High intensity Focused Ultrasound Exposure. AB - We develop a ray-tracing theory to describe the effects of thermoacoustic lensing during high-intensity focused ultrasound (HIFU) on ultrasound images of reflectors lying distal to the HIFU focal region and discuss the application of thermal lensing effects to dose monitoring in HIFU therapy. By analyzing the effects of thermal and geometric delays of acoustic rays passing through a region of tissue undergoing localized heating, we show how the shape of a reflector distal to the heated region can be predicted and present experimental measurements in good agreement with the model. We also apply the model in reverse to estimate the thermal profile of a heated region based on a measured change in the shape of a distal reflector during HIFU delivery. As an example, we apply this technique to the measurements of thermal diffusion in porcine fat. An interesting aspect of the technique is that it can be applied to measure temperature in nonechogenic tissues as long as there is an observable reflector in the ultrasound images that is located distal to the region of localized heating. PMID- 29332488 TI - Role of the hippocampal 5-HT1A receptor-mediated cAMP/PKA signalling pathway in sevoflurane-induced cognitivedysfunction in aged rats. AB - Objective This study aimed to evaluate the role of the hippocampal 5 hydroxytryptamine-1A (5-HT1A)-mediated cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) signalling pathway in sevoflurane-induced cognitive dysfunction in aged rats. Methods Sixty 18-month-old Sprague-Dawley rats were divided into the control (n = 30) and experimental (Sev, n = 30) groups. The experimental group inhaled 50% air/oxygen mixture (2 L/min) and 2% sevoflurane for 4 hours. The control group inhaled 50% air/oxygen mixture (2 L/min) for 4 hours. The Morris water maze test was performed The mRNA expression of 5-HT1A receptor, and cAMP PKA, cAMP response element-binding protein (CREB), and phosphorylated CREB (p-CREB) protein expression were determined. Results The escape latency and swimming distance were greater, and the number of crossings of the platform location and time spent in the platform quadrant were less in the Sev group compared with the control group. cAMP, PKA, CREB, and p-CREB protein expression was downregulated in the Sev group 1 day after anaesthesia compared with the control group. Hippocampal 5-HT1A receptor mRNA expression was higher 7 days after anaesthesia compared with the control group. Conclusion Sevoflurane induced cognitive dysfunction in aged rats may be related to inhibited expression of the hippocampal 5-HT1A receptor-mediated cAMP/PKA signalling pathway. PMID- 29332490 TI - The Oppression of Latina Mothers: Experiences of Exploitation, Violence, Marginalization, Cultural Imperialism, and Powerlessness in Their Everyday Lives. AB - Despite Latinos being the largest growing population in the United States, research has not examined the impact of social structures on the well-being of Latina immigrants; negative social discourse and restrictive laws exacerbate inequality and discrimination in this population. Through combined inductive/deductive analysis of in-depth semistructured interviews, we examined immigrant Mexican mothers' ( N = 32) descriptions of oppression in the United States. All five forms of oppression, described in Young's oppression framework are evident: exploitation, violence, marginalization, cultural imperialism, and powerlessness. Discrimination places a high burden on Latinas due to the intersection of forms of oppression and nondominant identities. PMID- 29332491 TI - Relationship (A)Symmetries and Violence: Comparing Intimates and NonPartners. AB - Violence between social equals differs in character from violence between persons in asymmetrical relationships. Specifically, issues of contention motivating violence vary by the relative status of opponents, such that violence over symbolic issues is more common between symmetrical than asymmetrical opponents. Recent studies have substantiated these predictions in nonpartner relationships. Using data from interviews of incarcerated women, this study explores how intimate partner violence compares with violence between nonpartner opponents. We find that intimate partner violence is more likely to involve symbolic issues compared with violence between all kinds of nonpartner opponents. Consequently, intimate partnerships might be viewed as hypersymmetrical. PMID- 29332492 TI - Safety and efficacy of photoselective vaporization of the prostate using the 180 W GreenLight XPS laser system in patients taking oral anticoagulants. AB - Objective To evaluate the safety and efficacy of the 180-W GreenLight XPS laser system for the treatment of benign prostatic hyperplasia in patients taking oral anticoagulants. Methods All consecutive patients admitted for lower urinary tract symptoms associated with benign prostatic hyperplasia from November 2012 to October 2016 and who underwent photoselective vaporization of the prostate with the 180-W GreenLight XPS laser were included in the study. The perioperative outcomes examined were the operating time, laser time, energy usage, and duration of postoperative catheterization. Functional parameters (International Prostate Symptom Score, maximum urinary flow rate, and post-void residual urine volume), prostate volume, and serum prostate-specific antigen concentration were examined at baseline and 3 months. Perioperative complications, if any, were noted. Results All functional parameters (International Prostate Symptom Score, maximum urinary flow rate, and post-void residual urine volume) significantly improved from baseline to 3 months. A small number of patients experienced at least one minor adverse event. There was no difference in the rate of adverse events between patients who were and were not taking anticoagulants. Conclusions Photoselective vaporization with a 180-W laser is an efficacious and safe treatment for benign prostatic hyperplasia, even in patients taking anticoagulant medications. PMID- 29332493 TI - College Campus Sexual Assault: The Contribution of Peers' Proabuse Informational Support and Attachments to Abusive Peers. AB - Since the mid-1980s, researchers across the United States have uncovered high rates of sexual assault among female college students. However, to advance a better understanding of this gendered type of victimization, and to both prevent and control this problem, the research community needs to identify its major correlates. One that is consistently uncovered in North American campus survey work is negative peer support, especially that provided by male peers. Yet, some earlier studies have found that mixed-sex negative peer support, too, contributes to campus sexual assault. Using recent data from the Campus Quality of Life Survey conducted at a large residential school in the South Atlantic region of the United States, the main objectives of this article are to examine the role of mixed-sex negative peer support in campus sexual assault and to identify the groups of women most at risk of having friends who offer such support. PMID- 29332494 TI - An Evaluation of Adolescent and Young Adult (Re)Victimization Experiences: Problematic Substance Use and Negative Consequences. AB - We investigated substance use and negative consequences in women who experienced an initial sexual assault (SA) in high school and subsequently in college. More than 650 participants completed questionnaires assessing substance use/consequences, SA history, and posttraumatic stress disorder (PTSD) symptomology. Revictimized women reported differential substance use/consequences relative to controls underscoring the need to conceptualize adolescence as a key developmental period with a unique pathway to a subsequent SA, especially in association with substance use. We propose that prevention interventions should begin no later than ninth grade to limit the risk for an initial experience of SA and any consequential substance use and abuse. PMID- 29332495 TI - Comparing Violent Victimization Experiences of Male and Female College-Attending Emerging Adults. AB - Despite increased attention to college student victimization, gaps remain. In particular, relatively little is known about violence against males and females outside sexual and intimate partner violence. This study uses data from the National Crime Victimization Survey to compare male and female students' violent victimization overall as well as relational and sexual violence. Findings reveal gendered differences and similarities. Results have implications for policies to prevent violence and support victims. Implications for victim services are particularly relevant given the critical developmental period for college students learning coping skills that shape their adult lives and addressing harms resulting from violent victimization. PMID- 29332496 TI - Double Jeopardy: Insurance, Animal Harm, and Domestic Violence. AB - Although the role of companion animals within the dynamic of domestic violence (DV) is increasingly recognized, the overlap of animal harm and insurance discrimination for victims/survivors of DV has not been considered. Prompted by a case study presented in a National Link Coalition LINK-Letter, this research note examines "Pet Insurance" policies available in Australia and whether nonaccidental injury caused by an intimate partner would be covered. We discuss the implications of exclusion criteria for victims/survivors of DV, shelters providing places for animals within a DV dynamic, and, more broadly, for cross- or mandatory-reporting (of animal harm) initiatives. PMID- 29332498 TI - An Updated Assessment of Personal Protective Order Statutes in the United States: Have Statutes Become More Progressive in the Past Decade? AB - The Personal Protection Order (PPO) is one civil intervention all states provide to victims of domestic violence; however, each state varies widely in who can access PPOs, what protections are included in PPOs, and how they are enforced. Given the many changes to state PPO statutes over the last decade, this research replicates and updates DeJong and Burgess-Proctor's research on PPOs' victim friendliness (using states' 2003 PPO statutes) by examining states' 2014 PPO statutes. Findings suggest that states have become more victim-friendly with most states ranking in the highest category of victim-friendliness. Implications for policy and practice are discussed. PMID- 29332497 TI - Dosimetric Analysis of Microscopic Disease in SBRT for Lung Cancers. AB - OBJECTIVE: The objective of this study is to theoretically and experimentally evaluate the dosimetry in the microscopic disease regions surrounding the tumor under stereotactic body radiation therapy of lung cancer. METHODS: For simplicity, the tumor was considered moving along 1 dimension with a periodic function. The probability distribution function of the tumor position was generated according to the motion pattern and was used to estimate the delivered dose in the microscopic disease region. An experimental measurement was conducted to validate both the estimated dose with a probability function and the calculated dose from 4-dimensional computed tomography data using a dynamic thorax phantom. Four tumor motion patterns were simulated with cos4(x) and sin(x), each with 2 different amplitudes: 10 mm and 5 mm. A 7-field conformal plan was created for treatment delivery. Both films (EBT2) and optically stimulated luminescence detectors were inserted in and around the target of the phantom to measure the delivered doses. Dose differences were evaluated using gamma analysis with 3%/3 mm. RESULTS: The average gamma index between measured doses using film and calculated doses using average intensity projection simulation computed tomography was 80.8% +/- 0.9%. In contrast, between measured doses using film and calculated doses accumulated from 10 sets of 4-dimensional computed tomography data, it was 98.7% +/- 0.6%. The measured doses using optically stimulated luminescence detectors matched very well (within 5% of the measurement uncertainty) with the theoretically calculated doses using probability distribution function at the corresponding position. Respiratory movement caused inadvertent irradiation exposure, with 70% to 80% of the dose line wrapped around the 10 mm region outside the target. CONCLUSION: The use of static dose calculation in the treatment planning system could substantially underestimate the actual delivered dose in the microscopic disease region for a moving target. The margin for microscopic disease may be substantially reduced or even eliminated for lung stereotactic body radiation therapy. PMID- 29332499 TI - Examination of an in vitro methodology to evaluate the biomechanical performance of nucleus augmentation in axial compression. AB - Intervertebral disc degeneration is one of the leading causes of back pain, but treatment options remain limited. Recently, there have been advances in the development of biomaterials for nucleus augmentation; however, the testing of such materials preclinically has proved challenging. The aim of this study was to develop methods for fabricating and testing bone-disc-bone specimens in vitro for examining the performance of nucleus augmentation procedures. Control, nucleotomy and treated intervertebral disc specimens were fabricated and tested under static load. The nucleus was removed from nucleotomy specimens using a trans-endplate approach with a bone plug used to restore bony integrity. Specimen-specific finite element models were developed to elucidate the reasons for the variations observed between control specimens. Although the computational models predicted a statistically significant difference between the healthy and nucleotomy groups, the differences found experimentally were not significantly different. This is likely due to variations in the material properties, hydration and level of annular collapse. The deformation of the bone was also found to be non negligible. The study provides a framework for the development of testing protocols for nucleus augmentation materials and highlights the need to control disc hydration and the length of bone retained to reduce inter-specimen variability. PMID- 29332500 TI - Microstructure and mechanical properties of porous titanium structures fabricated by electron beam melting for cranial implants. AB - The traditional methods of metallic bone implants are often dense and suffer from adverse reactions, biomechanical mismatch and lack of adequate space for new bone tissue to grow into the implant. The objective of this study is to evaluate the customized porous cranial implant with mechanical properties closer to that of bone and to improve the aesthetic outcome in cranial surgery with precision fitting for a better quality of life. Two custom cranial implants (bulk and porous) are digitally designed based on the Digital Imaging and Communications in Medicine files and fabricated using additive manufacturing. Initially, the defective skull model and the implant were fabricated using fused deposition modeling for the purpose of dimensional validation. Subsequently, the implant was fabricated using titanium alloy (Ti6Al4V extra low interstitial) by electron beam melting technology. The electron beam melting-produced body diagonal node structure incorporated in cranial implant was evaluated based on its mechanical strength and structural characterization. The results show that the electron beam melting-produced porous cranial implants provide the necessary framework for the bone cells to grow into the pores and mimic the architecture and mechanical properties closer to the region of implantation. Scanning electron microscope and micro-computed tomography scanning confirm that the produced porous implants have a highly regular pattern of porous structure with a fully interconnected network channel without any internal defect and voids. The physical properties of the titanium porous structure, containing the compressive strength of 61.5 MPa and modulus of elasticity being 1.20 GPa, represent a promising means of reducing stiffness and stress-shielding effect on the surrounding bone. This study reveals that the use of porous structure in cranial reconstruction satisfies the need of lighter implants with an adequate mechanical strength and structural characteristics, thus restoring better functionality and aesthetic outcomes for the patients. PMID- 29332501 TI - "Plates and Dishes Smash; Married Couples Clash": Cultural and Social Barriers to Help-Seeking Among Women Domestic Violence Survivors in Kyrgyzstan. AB - This article develops a grounded theory of help-seeking to investigate the social and cultural determinants of help-seeking among Kyrgyz women who have experienced domestic violence. Results indicate that cultural traditions and social norms most notably the social construction of marriage, the shame associated with divorce, and the status of daughters-in-law in Kyrgyz society-are used to justify domestic violence and prevent victims from seeking help. The proposed theory and results suggest that scholars, policymakers, and front-line contacts must emphasize dispelling myths, misconceptions, and traditional beliefs about gender and marriage to break the abusive dynamics and provide professional help. PMID- 29332502 TI - Associations Between Home Death and the Use and Type of Care at Home. AB - Despite wishes for and benefits of home deaths, a discrepancy between preferred and actual location of death persists. Provision of home care may be an effective policy response to support home deaths. Using the population-based mortality follow-back study conducted in Nova Scotia, we investigated the associations between home death and formal care at home and between home death and the type of formal care at home. We found (1) the use of formal care at home at the end of life was associated with home death and (2) the use of formal home support services at home was associated with home death among those whose symptoms were well managed. PMID- 29332503 TI - "They Said on the Death Certificate...But Really What I Think Happened": Characterizing Cause of Death in VA Medical Centers. AB - Cause of death information is a vital resource for family and public health, yet significant issues persist regarding its determination, documentation and communication. In this study, we aim to characterize cause of death attribution process from the perspective of next-of-kin of Veterans who died in Veterans Affairs (VA) Medical Centers. Using a semi-structured guide, we explored next-of kin's experiences of the Veteran's terminal hospitalization and conducted a content analysis of interview texts. In over two-third of cases next-of-kin's understanding was not consistent with their recollection of physicians' determination of cause of death. Discrepancies between official cause of death and lay understanding engendered confusion and distress. Findings have relevance for shaping the context of post-death patient/family-centered clinical practice and serve as a means for improving efficacy of cause of death communication and reducing potential for misunderstandings. PMID- 29332504 TI - Changes in Distress Measured by the Distress Thermometer as Reported by Patients in Home Palliative Care in Germany. AB - AIM: To identify changes in distress as reported by patients in a home palliative care program over a 2-week period. METHODS: Prospective study in West Germany with consecutive patients cared for at home by a palliative care specialty team. Exclusion criteria were patients under 18 years of age, mentally or physically not able to complete the assessment questionnaires, or unable to comprehend German language. Distress was measured using the distress thermometer (DT); sociodemographic and medical data were collected from the patients' records. RESULTS: One hundred three participated in the study (response rate of 69%) and 39 participants completed DT at 2-week follow-up (T1; response rate = 38%; mean age = 67; female = 54.4%; married = 67%; living home with relatives = 60.2%; oncological condition = 91.3%; Karnofsky performance status [KPS] 0-40 = 18.9%, KPS 50-70 = 70.3%, KPS >80 = 10.8%). The mean DT score at the first visit (T0) was 5.9 (2.3), with 82.1% of the participants scoring DT >=5. At the 2-week follow-up (T1), mean DT score was 5.0 (2.0), with 64.1% scoring DT >=5, showing a statistically significant difference between T0 and T1. Comparing the single scores at T0 and T1 of each participant, the difference in DT scores was -0.9 (2.27). CONCLUSION: The DT is a useful tool for screening severity and changes in psychological distress as well as sources of distress. The DT detected change in self-reported distress within a short treatment period, indicating success or failure of the palliative care treatment approaches. PMID- 29332505 TI - Building a Novel Health Curriculum for Survivors of Intimate Partner Violence Residing at a Transitional Housing Program. AB - We used a community-based participatory research approach to develop, implement, and evaluate one of the first health curricula for female intimate partner violence (IPV) survivors residing at a transitional housing program. The curriculum comprised 12 workshops that were developed based on the survivors' experiences, needs, and interests. Evaluation participants included 20 of the 37 women who attended at least one workshop, 12 workshop facilitators, and two housing center staff. Participants found the curriculum to be engaging, interactive, and helpful in building a supportive community. Suggestions for curricular improvement as well as opportunities for further research and curricular development are discussed. PMID- 29332506 TI - Rape Crimes: Are Victims' Acute Psychological Distress and Perceived Social Support Associated With Police Case Decision and Victim Willingness to Participate in the Investigation? AB - This study examined level of acute psychological distress and perceived social support in 64 victims of rape and the association with police case decisions and victims' willingness to participate in the investigation. The results of independent-sample t tests revealed that victims' unwillingness to participate in the investigation was significantly associated with a higher level of psychological distress in the acute phase following the assault. The results suggest that victims of rape who disengage with the police investigation may do so because of a high level of acute psychological distress. Clinical implications are discussed. PMID- 29332507 TI - An Evaluation of the Impacts of Changing Firearms Legislation on Australian Female Firearm Homicide Victimization Rates. AB - Reducing lethal violence against women requires comprehensive measures addressing individual, social, economic, cultural, and situational factors. Regarding situational factors, access to weapons-and firearm access in particular-has received notable research attention. However, most study comes from the United States of America, and findings may not apply elsewhere. The current study examines whether changing gun laws in Australia affected female firearm homicide victimization. Female firearm homicide victimization may have been affected; however, no significant impacts were found for male firearm homicide victimization. Findings suggest there may be value in preventing legal access to firearms by persons who have a history of intimate partner violence, although considerable further study is required. PMID- 29332508 TI - Battered Wives or Dependent Mothers? Negotiating Familial Ideology in Law. AB - More than a decade after its passing, Sri Lanka's Prevention of Domestic Violence Act (PDVA) remains a remedy of last resort for female survivors of intimate partner violence, as there is little support to take on a rights-defined identity as a battered woman both inside and outside the courtroom. However, large numbers of women are accessing the Maintenance Act of 1999 to exit violent relationships without the censure and stigma that attaches to the PDVA. The key to understanding this phenomenon is to consider how familial ideology works in unpredictable ways within the Sri Lankan judicial system. This article examines the reach and different impacts of familial ideology within the judiciary and argues that female survivors of violence navigate this ideology to their own advantage. However, the preference to address violence through the Maintenance Act renders such violence invisible. The price for judicial redress is silence. PMID- 29332509 TI - Sexual Scripts and Criminal Statutes: Gender Restrictions, Spousal Allowances, and Victim Accountability After Rape Law Reform. AB - The author provides a mixed-methods assessment of U.S. rape statutes to assess progress in reform. Contemporary statutes offer restrictive frameworks for distinguishing criminal from noncriminal sexual violence, many of which are grounded in gendered and heterosexist assumptions. Fourteen states retain gender restrictions in rape statutes. Twenty maintain marital distinctions that limit accountability for spousal rape. Furthermore, whereas explicit resistance requirements have been eliminated nationwide, implicit resistance expectations manifest through emphasis on physical force and involuntary intoxication. Analyses conclude with recommendations for further legal reform and a discussion of the potential for legislation to affect broader social perceptions of rape. PMID- 29332510 TI - Localized autoimmune pancreatitis mimicking pancreatic cancer: Case report and literature review. AB - Autoimmune pancreatitis (AP) is a rare autoimmune pancreatic manifestation of systemic immunoglobulin G4 (IgG4)-related sclerosing disease. Distinguishing between AP and pancreatic cancer is crucial because the clinical courses, treatments, and prognoses of these two disease entities are quite different. We herein report a case involving a 52-year-old man with subacute epigastralgia who visited our hospital for evaluation of a suspicious pancreatic mass found during esophagogastroduodenoscopy. Enhanced computed tomography (CT) revealed an enlarged lesion in the pancreatic head with encasement of hepatic vessels. The lesion also exhibited increased 18F-fluorodeoxyglucose accumulation on positron emission tomography/CT imaging, which was highly suggestive of pancreatic cancer. After open biopsy, morphologic examination showed an inflammatory infiltrate in the pancreas, which was compatible with chronic sclerotic pancreatitis. Further laboratory tests revealed an elevated serum IgG4 level, and the diagnosis of sclerotic pancreatitis was then confirmed. After corticosteroid treatment, the pancreatic lesion showed shrinkage on follow-up CT, and the serum IgG4 titer decreased to the normal range. This case suggests that clinicians should be familiar with the clinical presentations and diagnostic criteria of AP versus pancreatic cancer. An awareness of the differences between these diseases may avoid misdiagnosis and unnecessary surgical intervention. PMID- 29332511 TI - The Process of Primary Desistance From Intimate Partner Violence. AB - This study examined the interaction between structure and agency for individuals in the first or early phase of primary desistance (1 year offending free) from intimate partner violence (IPV). Narrative accounts of perpetrators, survivors, and IPV program facilitators were analyzed using Thematic Analysis. Changes in the self and the contexts, structures, and conditions were necessary to promote desistance. Perpetrators made behavioral and cognitive changes taking on different identities (agentic role) by removing external stressors and instability within the confines of a supportive environment (structural role). Findings provide a theoretical framework of desistance from IPV that integrates social processes and subjective change. PMID- 29332512 TI - Rape Aggression Defense: Unique Self-Efficacy Benefits for Survivors of Sexual Trauma. AB - Self-defense training is consistently linked to psychological benefits for survivors of sexual trauma, yet little is known about how training may uniquely benefit survivors compared with their nonsurvivor peers enrolled in the same course. Path analysis was used to examine how history of sexual trauma impacts pre- and post-training scores on three domains of self-efficacy using a national sample of Rape Aggression Defense (RAD) participants. All participants reported significant increases in self-efficacy domains, and sexual trauma history significantly predicted pre-training interpersonal self-efficacy and post training self-defense self-efficacy, suggesting that self-defense training confers benefits for survivors above and beyond benefits for other participants. PMID- 29332513 TI - The Meaning of Choosing a Spouse Among Ultra-Orthodox Jewish Women Who Found Themselves in a Violent Relationship. AB - This research note addresses how ultra-Orthodox Jewish women in Israel coping with intimate partner violence experienced the spouse selection process. In-depth semistructured qualitative-phenomenological interviews were conducted with 17 women. Four major themes emerged: (a) "The matchmaker seemingly fell asleep on her watch"; (b) The parents' mistakes; (c) "The rabbi told me to jump into the water. Now he should hand me the paddles to get out!" The rabbi's role; and (d) "That's it . . . I follow it blindly": The system. The findings add to the professional knowledge about violent partnerships in the ultra-Orthodox Jewish community in Israel. PMID- 29332514 TI - Gender, Migration, and Exclusionary Citizenship Regimes: Conceptualizing Transnational Abandonment of Wives as a Form of Violence Against Women. AB - Based on life history narratives of 57 women in India and interviews with 21 practitioners, we document the neglect, abuse, and instrumental deprivation of women's rights through the process of transnational abandonment. While gendered local sociocultural milieus and economic norms contribute to these harms, they are crucially enabled and sustained by transnational formal-legal frameworks. Widening the explanatory lens for understanding domestic violence beyond the family and community, we argue that in a globalized world, (inter)state policies serve to construct these women as a subordinate category of citizens-"disposable women"-who can be abused and abandoned with impunity. PMID- 29332516 TI - Drivers of Intimate Partner Violence Against Women in Three Refugee Camps. AB - This qualitative study examined the "drivers" of intimate partner violence (IPV) against women in displacement to identify protective factors and patterns of risk. Qualitative data were collected in three refugee camps in South Sudan, Kenya, and Iraq ( N = 284). Findings revealed interrelated factors that triggered and perpetuated IPV: gendered social norms and roles, destabilization of gender norms and roles, men's substance use, women's separation from family, and rapid remarriages and forced marriages. These factors paint a picture of individual, family, community and societal processes that exacerbate women's risk of IPV in extreme conditions created by displacement. Implications for policy and practice are indicated. PMID- 29332515 TI - Vasoplegia in patients with sepsis and septic shock: pathways and mechanisms. AB - Sepsis is one of the most frequent causes of death among patients in intensive care units. Many therapeutic strategies have been assessed without the desired success rates. A key risk factor for death is hypotension due to vasodilatation with vascular hyposensitivity. However, the pathways underlying this process remain unclear. Endotoxemia induces inflammatory mediators, and this is followed by vasoplegia and decreased cardiac contractility. Although inhibition of these mediators diminishes mortality rates in animal models, this phenomenon has not been confirmed in humans. Downregulation of vasoconstrictive receptors such as angiotensin receptors, adrenergic and vasopressin receptors is seen in sepsis, which is associated with a hyporesponsiveness to vasoconstrictive mediators. Animal studies have verified that receptor downregulation is linked to the above mentioned inflammatory mediators. Anti-inflammatory therapy with glucocorticoids reportedly improves responsiveness to catecholamines with higher survival in rats, although this has not been shown to be clinically significant in humans. Hence, there is an urgent need for in-depth studies investigating the underlying mechanisms of vasoplegia to allow for development of effective therapeutic strategies for the treatment of sepsis. PMID- 29332517 TI - Women's Decisions to Stay in or Leave an Abusive Relationship: Results From a Longitudinal Study in Bolivia. AB - This study examined Bolivian women's decisions to stay with or leave their violent partners. The theory of planned behavior (TPB) was used as the theoretical framework. One hundred thirty-four women were assessed 3 times over 6 months. The TPB constructs were measured at T1 and T2; relationship status was assessed at T3. At T2, attitudes about staying and leaving predicted the intention to leave. Intention to leave at T2 but not at T1 predicted relationship status at T3. These results suggest that the decision to leave was consolidated between T1 and T2, and attitudes toward staying were most relevant to this decision. PMID- 29332518 TI - Sexual Assault and Dyadic Relationship Satisfaction: Indirect Associations Through Intimacy and Mental Health. AB - Rates of child and adult sexual assault (SA) among women are staggering and place women at risk for intra- and interpersonal difficulties. However, the independent contributions of child and adult SA or the mechanisms of this risk are unknown. This study's goal was to examine the indirect effects of child and adult SA on women's own and partner's relationship functioning through their impact on women's mental health, emotional intimacy, and sexual intimacy. Results revealed that the association of women's child SA with both her own and her partner's relationship satisfaction operated through emotional intimacy. Considerations for the study of women with a history of SA in the context of couple functioning are discussed. PMID- 29332519 TI - Integrating Reproductive Health Services Into Intimate Partner and Sexual Violence Victim Service Programs. AB - This study assessed the feasibility of integrating reproductive health services into intimate partner violence/sexual violence (IPV/SV) programs. After a training for victim service agencies on integration of health services, we conducted semistructured interviews with IPV/SV program leadership. Leadership reported advocates were more likely to recognize the need to refer clients to health services, and revealed challenges operationalizing partnerships with health care centers. Training to integrate basic health assessment into victim services may be one way to address women's urgent health needs. Formal partnership agreements, protocols to facilitate referrals, and opportunities to cross-train are needed to nurture these cross-sector collaborations. PMID- 29332520 TI - Gender-Based Violence Among HIV-Positive Women in Kazakhstan: Prevalence, Types, and Associated Risk and Protective Factors. AB - This article examines the prevalence and associated multilevel risk and protective factors of intimate and nonintimate partner violence among a sample of 249 HIV-positive women in Kazakhstan. We found high prevalence of both lifetime intimate partner violence (52%) and nonintimate partner violence (30%). Together, nearly 60% experienced at least one incident of violence by either an intimate or nonintimate partner (gender-based violence [GBV]). In the multivariate analyses, we found associations between several individual, interpersonal, and socio structural risk factors and GBV. Findings provide direction for practice, policy, and future research to address the intersection of GBV and HIV in Kazakhstan. PMID- 29332522 TI - I Said No: The Impact of Voicing Non-Consent on Women's Perceptions of and Responses to Rape. AB - The current study explored the impact of voicing non-consent in relation to rape. Aims of the study included determining (a) the prevalence of voicing non-consent, (b) the relationship of voicing non-consent to verbal and physical resistance, and (c) whether voicing non-consent predicts distress and rape acknowledgment. Out of 262 college women who experienced rape, 81% voiced non-consent. Voicing non-consent was related to verbal and physical resistance, but was distinct in prevalence and prediction of distress. Voicing non-consent was associated with trauma-related symptoms in multivariate models. Women who voiced non-consent were more likely to acknowledge their experience as rape or sexual assault. Implications are discussed. PMID- 29332521 TI - A Template Analysis of Intimate Partner Violence Survivors' Experiences of Animal Maltreatment: Implications for Safety Planning and Intervention. AB - This study explores the intersection of intimate partner violence (IPV) and animal cruelty in an ethnically diverse sample of 103 pet-owning IPV survivors recruited from community-based domestic violence programs. Template analysis revealed five themes: (a) Animal Maltreatment by Partner as a Tactic of Coercive Power and Control, (b) Animal Maltreatment by Partner as Discipline or Punishment of Pet, (c) Animal Maltreatment by Children, (d) Emotional and Psychological Impact of Animal Maltreatment Exposure, and (e) Pets as an Obstacle to Effective Safety Planning. Results demonstrate the potential impact of animal maltreatment exposure on women and child IPV survivors' health and safety. PMID- 29332523 TI - Challenging Narratives of the Anti-Rape Movement's Decline. AB - A recent trend in scholarship characterizes the anti-rape movement as founded with radical goals and achieving success at reforming rape laws, but then declining because of co-optation by the state. This article challenges narratives of decline in light of the history of the anti-rape movement and current anti rape activism. By focusing their critique on criminal justice and therapeutic approaches to sexual violence, and failing to account for the diversity of the anti-rape movement, advocates for narratives of decline ignore parts of the movement that challenge the state and other parts that use broader cultural and community-based strategies to end rape. PMID- 29332524 TI - Exploring the Moderating Role of Problematic Substance Use in the Relations Between Borderline and Antisocial Personality Features and Intimate Partner Violence. AB - Borderline and antisocial personality features relate to multiple externalizing behaviors, including intimate partner violence (IPV). However, not all individuals with borderline and antisocial traits perpetrate IPV. The strength of the personality-IPV link may be related to problematic substance use. We examined borderline and antisocial personality features, problematic substance use, and IPV in a community sample of couples. Positive relations between both borderline and antisocial features and IPV were stronger in conditions of high problematic alcohol use relative to low problematic alcohol use. Alcohol misuse may be an important factor to consider for IPV reduction in men with these personality features. PMID- 29332525 TI - Bar Training for Active Bystanders: Evaluation of a Community-Based Bystander Intervention Program. AB - Bystander intervention programs are proliferating on college campuses and are slowly gaining momentum as sexual violence prevention programs suitable for the larger community. In particular, bystander intervention programs aimed at bar staff have been developed in a number of locations. This study entails the exploratory evaluation of a community-based bystander program for bar staff. Using a pre-posttest design, this study suggests that evidence surrounding the effectiveness of this program is promising as it decreases rape myths, decreases barriers to intervention, and increases bartenders willingness to intervene. Future research and policy implications are discussed. PMID- 29332526 TI - The Effects of Victim Age, Perceiver Gender, and Parental Status on Perceptions of Victim Culpability When Girls or Women Are Sexually Abused. AB - This study investigated perceptions of victim culpability in sexual assaults against girls and women according to victim age, perceiver gender, and perceiver parental status. Overall, 420 jury-eligible participants completed an online survey recording their attributions of guilt, responsibility, and blame toward 10 , 15-, and 20-year-old girls and women in relation to sexual assault. Attributions of culpability were affected by whether the victim physically or verbally resisted the abuse, wore sexually revealing clothes, or was described as having acted promiscuously. Fifteen-year-old victims were perceived as more culpable for the abuse than 10-year-old victims. Implications of these findings are discussed. PMID- 29332527 TI - Domestic Violence Counseling in Rural Northern China: Gender, Social Harmony, and Human Rights. AB - Domestic violence (DV) affects over a third of Chinese women in a relationship. Focusing on ethnographic data from six staff members and six DV survivors at a rural, state-affiliated women's center in China in 2010, this article relies on Henrietta Moore's notion of the poststructuralist gendered subject to examine how the staff draw on discourses about gender and social harmony in persuading women to stay in their marriages, rather than on human rights discourses that emphasize survivor safety. It shows that DV survivors are frequently sent back to dangerous homes where their health is placed at risk. PMID- 29332528 TI - "Killed Out of Love": A Frame Analysis of Domestic Violence Coverage in Hong Kong. AB - A frame analysis was conducted on a Hong Kong newspaper to determine whether news coverage of female fatalities at the hands of their intimate partners was reported in conventional domestic violence ways or if there were culture-specific explanations. Overall, most coverage supported known views of domestic violence, justifying the perpetrator and categorizing the issue as isolated crime. However, a few stories highlighted the historical subordination of women under patriarchy in Confucianism as an important cultural factor. Findings have implications for the lack of generalization of the social problem, and the understanding of cultural and political power in Hong Kong society. PMID- 29332529 TI - Alcohol-Related Victim Behavior and Rape Myth Acceptance as Predictors of Victim Blame in Sexual Assault Cases. AB - Two studies analyzed the influence of victim behavior, drink type, and observer rape myth acceptance (RMA) on attributions of blame to victims of sexual assault. In Study 1, people higher in RMA blamed the victim more when she accepted rather than rejected the aggressor's invitation to buy her a drink. In Study 2, we analyzed if the effects depended on who offered the invitation for a drink (a friend or aggressor). RMA was more closely related to victim blame when she accepted (vs. rejected) the offer of a drink from the aggressor. In both studies, drink type (alcoholic vs. nonalcoholic) did not interact with the other variables. PMID- 29332530 TI - Reconciliation of patient/doctor vocabulary in a structured resource. AB - Today, social media is increasingly used by patients to openly discuss their health. Mining automatically such data is a challenging task because of the non structured nature of the text and the use of many abbreviations and the slang terms. Our goal is to use Patient Authored Text to build a French Consumer Health Vocabulary on breast cancer field, by collecting various kinds of non-experts' expressions that are related to their diseases and then compare them to biomedical terms used by health care professionals. We combine several methods of the literature based on linguistic and statistical approaches to extract candidate terms used by non-experts and to link them to expert terms. We use messages extracted from the forum on ' cancerdusein.org ' and a vocabulary dedicated to breast cancer elaborated by the Institut National Du Cancer. We have built an efficient vocabulary composed of 192 validated relationships and formalized in Simple Knowledge Organization System ontology. PMID- 29332531 TI - Supporting Rape Survivors Through the Criminal Injuries Compensation Scheme: An Exploration of English and Welsh Independent Sexual Violence Advisors' Experiences. AB - English and Welsh responses to rape have long been critically examined, leading to attempted improvements in the criminal justice system. Despite this, little attention has been paid to the Criminal Injuries Compensation Scheme (CICS) and the difficulties applying it to rape. To begin addressing this gap, researchers interviewed three, and qualitatively surveyed 22, Independent Sexual Violence Advisors. The findings suggest that CICS may not only reinforce rape myths and disadvantage vulnerable survivors, but is also a source of validation and contributes to survivor justice. The study, while exploratory, therefore, highlights the need for further discussion about rape survivor compensation. PMID- 29332532 TI - Is the End Really the End? Prevalence and Correlates of College Women's Intentions to Return to an Abusive Relationship. AB - Fifty-six college women completed surveys before and after terminating an abusive, heterosexual dating relationship. Whereas 64% of women had contact with their abusive partner post break-up, only 14% reported a moderate to high likelihood that they would return. Intentions to return were prospectively predicted by fewer perceived quality of alternatives, and cross-sectional correlates of intentions to return were being single, shorter time since relationship termination, having contact with one's abusive ex-partner, and social pressure to return. These data can be used to inform intervention and advocacy efforts and to guide future research. PMID- 29332533 TI - Assessing the Impact of a Focused Deterrence Strategy to Combat Intimate Partner Domestic Violence. AB - The Offender Focused Domestic Violence Initiative (OFDVI) represents for the first time anywhere the application of the evidence-based focused deterrence policing approach to combat intimate partner domestic violence (IPDV). Through holding offenders accountable, the strategy has resulted in 20% reductions each in IPDV-related calls for police service and arrests. Victim injuries have been significantly reduced and the 1-year IPDV offender recidivism rate is about 16 17%. The backbone of the OFDVI strategy is the multidisciplinary collaboration of law enforcement and community partners which has resulted in identification and resolving system issues which have historically allowed offenders to repeat IPDV without consequence. PMID- 29332534 TI - Mediated Effects of Coping on Mental Health Outcomes of African American Women Exposed to Physical and Psychological Abuse. AB - Few studies have assessed the individual symptoms of posttraumatic stress disorder (PTSD) as separate mental health consequences of intimate partner abuse (IPA). This study examined the role of coping strategies associated with symptoms of PTSD in a community sample of African American women who have experienced abuse ( N = 128). The results revealed that nonphysical abuse was more prevalent than physical abuse. Specific symptoms of PTSD expressed depended on the type of abuse experienced and the type of coping strategies utilized. The findings have multiple implications on how IPA is studied as well as its clinical screening and treatment processes. PMID- 29332535 TI - Viewing Gendered Violence in Guatemala Through Photovoice. AB - This research examined rural and urban women's experiences of gender-based violence in Chimaltenango, Guatemala. Photovoice methodology was used to describe and analyze local realities and vulnerabilities, and ethnographic techniques added cultural and contextual factors. While the initial focus was on intimate partner violence, results showed that violence for women exists from childhood to senior years. Participants noted gaps in services and participated in a public strategy workshop to address these. Challenges and opportunities are presented around the enduring and complex global crisis of gendered violence. Photovoice is a powerful method for organizations to better understand and respond to local issues. PMID- 29332536 TI - The Rise of the Crime Victim and Punitive Policies? Changes to the Legal Regulation of Intimate Partner Violence in Finland. AB - This article examines intimate partnership violence as a question of criminal justice policy in Finland, and contributes to criminological discussions regarding oft-stated connections between the politicization of the victim, the treatment of offenders, and repressive criminal justice policies. In this discussion, legislation aiming to regulate and prevent violence against women has often been utilized as an example of such punitive policies. Although criminal policies in Nordic countries differ significantly from more punitive Anglophone policies, punitive tendencies, it has been argued, have increased in the former, too. This article analyzes the change in legal regulations and the criminal political status of intimate partner violence in Finland between 1990 and 2004, while examining the juxtaposition of victims and offenders alongside repressive demands. PMID- 29332537 TI - AZD9291 Increases Sensitivity to Radiation in PC-9-IR Cells by Delaying DNA Damage Repair after Irradiation and Inducing Apoptosis. AB - AZD9291 is a novel, irreversible epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor (TKI), which is administered orally. It has been proven effective in non-small cell lung cancer (NSCLC) patients, with both EGFR sensitizing and EGFR T790M mutations in preclinical models. However, the potential therapeutic effects of AZD9291 combined with other modalities, including ionizing radiation, are not well understood. The presence of AZD9291 significantly increases the cell-killing effects of radiation in PC-9-IR cells with a secondary EGFR mutation (T790M), which was developed from NSCLC PC-9 cells (human lung adenocarcinoma cell with EGFR 19 exon 15 bp deletion) after chronic exposure to increasing doses of gefitinib, and in H1975 cells (human lung adenocarcinoma cell with EGFR exon 20 T790M mutation de novo), but not in PC-9 cells or in H460 cells (human lung adenocarcinoma cell with wild-type EGFR). In PC-9-IR cells, AZD9291 remarkably decreases phosphorylation levels of EGFR, extracellular regulated protein kinase (ERK), and protein kinase B (AKT). AZD9291 increases sensitivity to radiation in PC-9-IR cells by delaying deoxyribonucleic acid (DNA) damage repair after irradiation and inducing apoptosis, and enhances tumor growth inhibition when combined with radiation in PC-9-IR xenografts. Our findings suggest a potential therapeutic effect of AZD9291 as a radiation sensitizer in lung cancer cells with an acquired EGFR T790M mutation, providing a rationale for a clinical trial using the combination of AZD9291 and radiation in NSCLCs harboring acquired T790M mutation. PMID- 29332539 TI - Whole-Body Oxygen (16O) Ion-Exposure-Induced Impairments in Social Odor Recognition Memory in Rats are Dose and Time Dependent. AB - Future long-duration space missions will involve travel outside of the Earth's magnetosphere, which will result in increased radiation exposure for astronauts. Exposure could permanently damage multiple tissues, including the central nervous system (CNS), and result in deleterious effects on cognition and behavior during and beyond the mission. Here, we assessed the effects of whole-body oxygen ion (16O; 1,000 MeV/n) exposure (5 or 25 cGy) on social odor recognition memory in male Long-Evans rats at one and six months after exposure. At one month postirradiation, all rats displayed a preference for a novel 1 (N1) social odor experienced during the habituation phase. When assessed for recognition memory 24 h later, only sham-irradiated rats spent more time exploring a second novel social odor (novel 2, N2), whereas rats irradiated with 5 or 25 cGy 16O ions did not show a preference for the N2 odor compared to the N1 odor experienced 24 h earlier, thus displaying a memory deficit for recall of the social odor encountered 24 h prior. At six months postirradiation, rats exposed to 25 cGy showed persistent deficits in 24 h recognition memory, while the 5 cGy-exposed rats did not. Thus, 24 h recognition memory was apparently recovered at six months postirradiation for the low, but not the higher, dose of 16O ions. Both irradiated groups displayed similar numbers of Ki67+ cells, a marker of cell proliferation, in the subventricular zone. These results further demonstrate that space-relevant 16O ion exposure has deleterious effects on the CNS, which are related to both radiation dose and time after exposure. PMID- 29332540 TI - Using the Woman Abuse Screening Tool to Screen for and Assess Dating Violence in College Students. AB - The study aimed to evaluate the measurement properties of the Woman Abuse Screening Tool (WAST) in Chinese college students. A cross-sectional survey was conducted in Hong Kong. A cutoff score of 10 was found to be able to discriminate between abused and nonabused Chinese young adults. The total score was significantly correlated with total scores for anxiety and depression on the Chinese version of the Hospital Anxiety and Depression Scale. Two-factor structure of the WAST was supported by exploratory and confirmatory factor analyses. The Chinese WAST was found to be valid in screening for and assessing intimate partner violence. PMID- 29332541 TI - After the Escape: Physical Abuse of Offspring, Posttraumatic Stress Disorder, and the Legacy of Political Violence in the DPRK. AB - What is the relationship between victimization by political violence against women in North Korea and later physical abuse of offspring? This article examines the relationships between victimization by political violence, posttraumatic stress disorder (PTSD), alcohol abuse/dependence, and abuse of offspring after arrival in South Korea. A random sample of 204 female North Korean defectors was used to test hypotheses. An oral history conducted with a survivor of North Korean political violence is provided in an appendix to contextualize the results. Analyses established a significant link between previous victimization by political violence and abuse of offspring but not mediation by either PTSD or alcohol abuse/dependence. PMID- 29332542 TI - Long Journeys Toward Freedom: The Relationship Between Coercive Control and Space for Action-Measurement and Emerging Evidence. AB - We report on the development of, and findings from, two scales measuring coercive control and space for action over a period of 3 years in a sample of 100 women who had accessed domestic violence services. We present statistical evidence to show a significant correlation between coercive control and space for action. However, dealing with violence is not a linear process, and support needs to extend beyond being enabled to separate. The scales advance measurement of women's experience of coercive control and, through the space for action scale, document their ability to restore agency and freedom in contexts of relative safety. PMID- 29332538 TI - Role of Infiltrating Monocytes in the Development of Radiation-Induced Pulmonary Fibrosis. AB - Lung exposure to radiation induces an injury response that includes the release of cytokines and chemotactic mediators; these signals recruit immune cells to execute inflammatory and wound-healing processes. However, radiation alters the pulmonary microenvironment, dysregulating the immune responses and preventing a return to homeostasis. Importantly, dysregulation is observed as a chronic inflammation, which can progress into pneumonitis and promote pulmonary fibrosis; inflammatory monocytes, which are bone marrow derived and express CCR2, have been shown to migrate into the lung after radiation exposure. Although the extent to which recruited inflammatory monocytes contribute to radiation-induced pulmonary fibrosis has not been fully investigated, we hypothesize that its pathogenesis is reliant on this population. The CC chemokine ligand, CCL2, is a chemotactic mediator responsible for trafficking of CCR2+ inflammatory cells into the lung. Therefore, the contribution of this mediator to fibrosis development was analyzed. Interleukin (IL)-1beta, a potent pro-inflammatory cytokine expressed during the radiation response, and its receptor, IL-1R1, were also evaluated. To this end, CCR2-/-, IL-1beta-/- and IL-1R1-/- chimeric mice were generated and exposed to 12.5 Gy thoracic radiation, and their response was compared to wild type (C57BL/6) syngeneic controls. Fibrotic foci were observed in the periphery of the lungs of C57 syngeneic mice and CCR2-/- recipient mice that received C57 bone marrow (C57 > CCR2-/-) by 16 and 12 weeks after irradiation, respectively. In contrast, in the mice that had received bone marrow lacking CCR2 (CCR2-/- > C57 and CCR2-/- syngeneic mice), no pulmonary fibrosis was observed at 22 weeks postirradiation. This observation correlated with decreased numbers of infiltrating and interstitial macrophages compared to controls, as well as reduced proportions of pro-inflammatory Ly6C+ macrophages observed at 12-18 weeks postirradiation, suggesting that CCR2+ macrophages contribute to radiation induced pulmonary fibrosis. Interestingly, reduced proportions of CD206+ lung macrophages were also present at these time points in CCR2-/- chimeric mice, regardless of donor bone marrow type, suggesting that the phenotype of resident subsets may be influenced by CCR2. Furthermore, chimeras, in which either IL 1beta was ablated from infiltrating cells or IL-1R1 from lung tissues, were also protected from fibrosis development, correlating with attenuated CCL2 production; these data suggest that IL-1beta may influence chemotactic signaling after irradiation. Overall, our data suggest that CCR2+ infiltrating monocyte-derived macrophages may play a critical role in the development of radiation-induced pulmonary fibrosis. PMID- 29332543 TI - Difficult but Close Relationships: Children's Perspectives on Relationships With Their Mothers in the Context of Domestic Violence. AB - This article reports findings from a participative and qualitative study conducted with children who had experienced domestic violence, focusing on their perspectives on their relationships with their mothers. Three focus groups and 46 individual interviews were conducted with children to gather their experiences. The research findings demonstrate that women's and children's victimizations are inextricably linked, and that domestic violence affects mother-child relationships. They also show that, despite the challenges and difficulties, children generally consider their mothers as very significant individuals in their lives, and have close relationships with them. The findings also reveal a dynamic of mutual protectiveness. PMID- 29332544 TI - The Possible Use of Preoperative Natriuretic Peptides for Discriminating Low Versus Moderate-High Surgical Risk Patient. AB - Perioperative risk scores for patients undergoing noncardiac surgery are generally considered inaccurate, poor, or, at best, modest. We propose estimating a patient's pretest and posttest probability of cardiac morbidity and death using the preoperative scoring system plus the negative likelihood ratio from brain natriuretic peptide (BNP) or N-terminal proB-type natriuretic peptide (NT-proBNP) plasma levels. Our clinical challenge scenario showed a pretest probability of postoperative major cardiac complications with the patient risk factor as 6.6% for the Revised Cardiac Risk Index and between 1% and 5% (intermediate risk) per the recent European Society of Cardiology and the European Society of Anesthesiologist guidelines for surgical risk estimation. In fact, the American College of Cardiology and the American Heart Association guidelines consider the same surgical procedure for elevated risk. The posttest probability takes advantage of a negative likelihood ratio from BNP plasma levels, with patient risk factor reduced to 0.8% and surgical risk to 1.1%. In the same way, the pretest American College of Surgeons National Surgical Quality Improvement Program score decreased from 18.8% to 3.5% for severe complications and from 0.9% to 0.1% for death at <=90 days. Following noncardiac surgery, postoperative complications and mortality are often cardiac in nature. The negative likelihood ratio of BNP and NT-proBNP plasma levels provides a quick, low-cost tool for recognizing and reclassifying the cardiovascular risk of those undergoing noncardiac surgery, thereby singling out low- versus moderate-high-risk surgical patients. PMID- 29332546 TI - Drinking Motives as a Moderator of the Relationship Between Dating Violence Victimization and Alcohol Problems. AB - The present study sought to examine whether drinking motives (i.e., coping, social, conformity, and enhancement) moderated the relationship between physical, sexual, and psychological dating violence victimization and alcohol-related problems in a sample of drinking college women ( N = 177). Results demonstrated that coping and social drinking motives moderated the relationship between sexual victimization and alcohol problems; conformity, social, and enhancement drinking motives moderated the relationship between alcohol-related problems and physical victimization; no significant findings were evident for psychological aggression victimization. Our results partially support the self-medication model of alcohol use, and this may be particularly relevant to sexual victimization. PMID- 29332545 TI - Long Noncoding RNA H19 Inhibits Cell Viability, Migration, and Invasion Via Downregulation of IRS-1 in Thyroid Cancer Cells. AB - Thyroid cancer is a common endocrine gland malignancy which exhibited rapid increased incidence worldwide in recent decades. This study was aimed to investigate the role of long noncoding RNA H19 in thyroid cancer. Long noncoding RNA H19 was overexpressed or knockdown in thyroid cancer cells SW579 and TPC-1, and the expression of long noncoding RNA H19 was detected by real-time polymerase chain reaction. The cell viability, migration, and invasion were determined by 3 (4, 5-dimethyl-2-thiazolyl)-2, 5-diphenyl-2-H-tetrazolium bromide assay, Transwell assay, and wound healing assay, respectively. Furthermore, cell apoptosis was analyzed by flow cytometry, and expressions of some factors that were related to phosphatidyl inositide 3-kinases/protein kinase B and nuclear factor kappaB signal pathway were measured by Western blotting. This study revealed that cell viability and migration/invasion of SW579 and TPC-1 were significantly decreased by long noncoding RNA H19 overexpression compared with the control group ( P < .05), whereas cell apoptosis was statistically increased ( P < .001). Meanwhile, cell viability and migration/invasion were significantly increased after long noncoding RNA H19 knockdown ( P < .05). Furthermore, long noncoding RNA H19 negatively regulated the expression of insulin receptor substrate 1 and thus effect on cell proliferation and apoptosis. Insulin receptor substrate 1 regulated the activation of phosphatidyl inositide 3-kinases/AKT and nuclear factor kappaB signal pathways. In conclusion, long noncoding RNA H19 could suppress cell viability, migration, and invasion via downregulation of insulin receptor substrate 1 in SW579 and TPC-1 cells. These results suggested the important role of long noncoding RNA H19 in thyroid cancer, and long noncoding RNA H19 might be a potential target of thyroid cancer treatment. PMID- 29332547 TI - The Psychology of the Politics of Rape: Political Ideology, Moral Foundations, and Attitudes Toward Rape. AB - Previous research has found that conservatives and liberals emphasize different moral foundations. The purpose of these two studies was to investigate whether moral foundations mediate the relationship between political ideology and attitudes toward rape among U.S. college students. In Study 1, moral foundations fully mediated the relationship between political ideology and rape myth acceptance. Study 2 generally replicated the results of Study 1, with binding foundations demonstrating the most consistent mediating effects. These results suggest that individual differences in moral decision-making may explain the relationship between political ideology and attitudes toward rape. PMID- 29332548 TI - Sociodemographic and Incident Variables as Predictors of Victim Injury From Intimate Partner Violence: Findings From Police Reports. AB - Predictors of victim injury from intimate partner violence (IPV) were investigated using 1,292 police reports collected in South Carolina in 2009/2010. All cases were opposite sex adults. Results from bivariate statistics showed that IPV cases with ( n = 649) and without visible injuries ( n = 643) differed on victim gender, victim race, type of relationship, and perpetrator's alcohol use. Results from a logistic regression analysis predicting victim injury showed higher odds ratios for males, Whites, and couples identified as cohabitants. Although most victims, including most injured victims, were Black women, males and Whites were overrepresented in the injured group. PMID- 29332549 TI - The Role of Sexual Abuse in Trauma Symptoms, Delinquent and Suicidal Behaviors, and Criminal Justice Outcomes Among Females in a Juvenile Justice Diversion Program. AB - Female juvenile justice-involved (JJI) youth experience more sexual abuse (SA) than their non-JJI counterparts or their male JJI counterparts. This study examines SA's role among JJI females ( N = 1,307) in a behavioral health diversion program. Results indicate that SA increases the risk of psychological trauma, particularly posttraumatic stress and depression. SA also increases the odds of suicidal behavior, running away, and substance use. SA females have the same odds of successfully completing behavioral health diversion and being charged with any offense or misdemeanor after termination as non-SA females. Implications of research and future directions are discussed. PMID- 29332550 TI - How Ending Impunity for Conflict-Related Sexual Violence Overwhelmed the UN Women, Peace, and Security Agenda: A Discursive Genealogy. AB - The recent unprecedented focus on ending impunity for conflict-related sexual violence (CRSV) is positive in many respects. However, it has narrowed the scope of Security Council Resolution 1325 and the women, peace, and security (WPS) agenda it established in 2000. Through a critical discursive genealogy of the interrelation of two UN agendas-protection of civilians in armed conflict and women, peace, and security-the author traces how CRSV emerged as the defining issue of the latter while the transformative imperative of making women's participation central to every UN endeavor for peace and security has failed to gain traction. PMID- 29332551 TI - How Narratives of Fear Shape Girls' Participation in Community Life in Two Conflict-Affected Populations. AB - Numerous social factors shape girls' lives in conflict-affected settings, affecting their vulnerability to gender-based violence (GBV). Qualitative research methods were used to examine spaces of perceived safety and risk for girls living in two conflict-affected populations: camps in Ethiopia hosting primarily South Sudanese and Sudanese refugees and communities in eastern Democratic Republic of Congo. Three major themes emerged: (a) challenges around caregiver-child communication regarding development, sex, and sexual violence; (b) a typology of safe/risky spaces; and (c) the influence of male-dominated spaces on experiences and fear of GBV. The findings have implications for programs focused on reducing adolescent girls' vulnerability to violence within conflict-affected contexts. PMID- 29332553 TI - Understanding Trauma Normativeness, Normalization, and Help Seeking in Homeless Mothers. AB - Although trauma-informed approaches guide services to families experiencing homelessness, more emphasis is placed on securing housing than addressing underlying trauma contributing to housing instability. Examining the stories of 29 homeless and/or unstably housed mothers within the broader literature on family trauma and violence, chronic illness, and cultural aspects of family functioning, we define the process of trauma normativeness and normalization that may occur with repeated trauma experiences and argue that rehousing efforts must include concomitant attention to trauma and to understanding how individual, family, community, and cultural factors influence help-seeking behaviors in this vulnerable and growing population. PMID- 29332554 TI - Evaluating the dose-dependent mechanism of action of trazodone by estimation of occupancies for different brain neurotransmitter targets. AB - Trazodone is a drug that was introduced in the clinic almost 40 years ago. It is licensed to treat depression, but it is also commonly used off-label to treat insomnia. A recent study shows that it could be promising in preventing neurodegeneration in mice, and clinical trials to assess its possible beneficial effects on dementia and Alzheimer's disease are expected to start soon in humans. In this study, we describe the dose-dependent pharmacology of trazodone by carrying out pharmacokinetic simulations aiming to predict the brain concentrations of trazodone for different drug-dosing regimens and calculating occupancy for 28 different targets for which published trazodone-binding data are available. Our study indicates that low doses of trazodone (typically 50 mg daily) should suffice to block specific receptors responsible for the hypnotic effect, and to provide the protective effect against neuroinflammation and neurodegeneration that could be beneficial in dementia. Higher doses are required for an antidepressant effect. The occupancy of specific receptors at therapeutic doses also explains peculiar side effects reported by patients treated with trazodone (e.g. dry-mouth, hypotension and priapism). PMID- 29332552 TI - Practitioner Views on the Impacts, Challenges, and Barriers in Supporting Older Survivors of Sexual Violence. AB - Despite half a century of research on both sexual violence and elder abuse, the intersection between the two remains largely unexplored. Using theoretical lenses of feminist criminology and critical feminist gerontology, this article explores the intersection between age and sexual violence drawing on interviews with 23 practitioners supporting older survivors (aged 60 and over). They reported physical and emotional effects of sexual violence leading to limited lifestyles, disengagement from social networks, and reliance on pathogenic coping strategies. Provision of effective support was complicated by challenges associated with aging bodies and the social stigma associated with both sexual victimhood and older age. Additional challenges lay in supporting older male survivors and those living with dementia. The article ends by discussing implications for practice and an agenda for future research. PMID- 29332555 TI - Victim Empowerment, Safety, and Perpetrator Accountability Through Collaboration: A Crisis to Transformation Conceptual Model. AB - This article describes the development of the Victim Empowerment, Safety, and Perpetrator Accountability through Collaboration (VESPAC) model based on a grounded theory analysis of congressionally mandated and permissible purpose areas for grants authorized by the Violence Against Women Act. These areas are reflective of ongoing and emerging needs of victims and agencies serving victims and are rooted in the expertise, insight, and concerns of those who work most closely with victims and perpetrators on a regular basis. Analysis resulted in five overarching and interconnected themes: Community Readiness, Victim Services, Justice Responses, Coordinated Community Responses, and Cultural Relevance. The final model emphasizes the centrality of coordinated community responses to ensure that the remaining components of the model work in tandem across time to achieve victim safety and perpetrator accountability in a culturally appropriate way. The model also may help agencies, coalitions, and communities think "big" and consider more strategically about where their strengths best fit in the vast scope of victim needs necessary to meet safety goals and where they might benefit most from the expertise of partners. PMID- 29332556 TI - "Back Off Buddy, This Is My Body, Not Yours": Empowering Girls Through Self Defense. AB - Although growing recognition is being given to the benefits of teaching self defense skills to college women, very little research attention has considered the impacts of providing such courses to school-aged girls. This article presents the findings from a large-scale evaluation of self-defense programs provided to three different age groups of schoolgirls from diverse backgrounds in New Zealand, drawing on survey responses from the girls themselves, supplemented by qualitative data provided by key informant interviews with their school and self defense teachers. The findings provide clear evidence of the many positive benefits that can result for girls of all ages who participate in feminist self defense courses taught by carefully trained instructors with a strong empowerment focus. PMID- 29332558 TI - Situational Variations in, and Women's Accounts of, Avoided Acts of Serious Intimate Partner Violence. AB - This study explores how both situations and persons contribute to the probability that a serious incident of intimate partner violence (IPV) can be avoided. Data, on both completed and avoided acts of serious partner violence, were collected from jailed women in Baltimore. Factors that increase the odds of avoiding a serious incident of IPV are a woman's age, her partner's initiation of a threat/attack, and being accompanied by a family member. Factors that decrease the odds of avoided serious violence include an indicator of what the dispute was about, her partner's substance abuse, prior experiences with avoided acts of violence, and lifetime arrests. PMID- 29332557 TI - Evaluation of a Victim-Centered, Trauma-Informed Victim Notification Protocol for Untested Sexual Assault Kits (SAKs). AB - Throughout the United States, hundreds of thousands of sexual assault kits (SAKs) have not been submitted by the police for forensic DNA testing, which raises complex issues regarding how victims ought to be notified about what happened to their kits. In this project, we evaluated a victim-centered, trauma-informed victim notification protocol that was implemented in Detroit, Michigan. Most victims (84%) did not have a strong negative emotional reaction to notification, and most (57%) decided to reengage with the criminal justice system. Victims of nonstranger sexual assaults were less likely to reengage postnotification compared with victims of stranger rape. PMID- 29332559 TI - The Relationship Between Domestic Partner Violence and Suicidal Behaviors in an Adult Community Sample: Examining Hope Agency and Pathways as Protective Factors. AB - We examined an additive and interactive model involving domestic partner violence (DPV) and hope in accounting for suicidal behaviors in a sample of 98 community adults. Results showed that DPV accounted for a significant amount of variance in suicidal behaviors. Hope further augmented the prediction model and accounted for suicidal behaviors beyond DPV. Finally, we found that DPV significantly interacted with both dimensions of hope to further account for additional variance in suicidal behaviors above and beyond the independent effects of DPV and hope. Implications for the role of hope in the relationship between DPV and suicidal behaviors are discussed. PMID- 29332561 TI - Editorial. PMID- 29332560 TI - Social Reactions to Sexual Assault Disclosure: A Qualitative Study of Informal Support Dyads. AB - This interview study examined 45 informal support dyads where sexual assault was disclosed. Analysis showed social reactions and appraisals of reactions varied by relationship type (family, friend, significant other). Themes identified were role reversal or "parentification" of supporters, reactions of anger and aggression toward perpetrators, supporters using their own trauma experiences to respond to survivors, and reactions of betrayal. Results revealed the potential for identifying relational patterns and dynamics occurring in social reactions through dyadic analysis not otherwise captured by a survivor-only perspective. This approach helps understand and address distinct relationship contexts to improve supporters' reactions to sexual assault disclosure. PMID- 29332562 TI - The Delicate Balance between the Good and the Bad IL-1 Proinflammatory Effects in Endometriosis. AB - BACKGROUND: Endometriosis is an inflammatory gynaecological disease with an associated chronic inflammation. Interleukin(IL)-1 is one of the most important immune and proinflammatory factors, produced mainly by monocytes and macrophages. Studies indicate the role of the cytokine from IL-1 family in endometrium-related disorders, particularly in endometriosis. METHODS: The information about the impact of cytokine from IL-1 cytokine family on the pathogenesis and development of endometriosis was obtained with an electronic literature search based on the PubMed and Medline databases, spanning the period of January 1950 to July 2017 and includes associated references in the published studies. RESULTS: The impairment of the IL-1 family cytokine-network may lead to changes in the activation of immune system in the peritoneal cavity of women with endometriosis. The aberrant ectopic endometrial cell properties of adhesion, implantation and proliferation may be the result of a reduced suppressive capacity controlling the IL-1. The imbalance between IL-1alpha, pro-IL-1beta, mature IL-1beta and sIL-1R2 and sIL-1RAcP in the peritoneal fluid and serum of women with endometriosis may be linked to the ability of transforming an acute inflammation into a chronic one. Despite the fact that peritoneal macrophages secrete more antiinflammatory IL-1Ra and less proinflammatory IL-1 in the peritoneal cavity in affected women, the inflammation still develops. CONCLUSIONS: This observation clearly suggested a significant inadequacy in the specific regulatory mechanisms of IL-1 activity at the peritoneal cavity level. The imbalance between all studied cytokines in endometriosis may escalate peritoneal inflammation and, in consequence, develop endometriosis. PMID- 29332563 TI - Multi-Target Directed Drugs as a Modern Approach for Drug Design Towards Alzheimer's Disease: An Update. AB - Alzheimer's disease (AD) is a progressive multifactorial neurodegenerative disorder. Currently, no effective treatment is available and this is due to multiple factors involved in pathophysiology and severity of AD. A recent approach for the rational design of new drug candidates, also called multitarget directed ligands (MTDL) strategy, has been used to develop a variety of hybrid compounds capable to act simultaneously in diverse biological targets. The discovery of drug candidates capable of targeting multiple factors involved in AD pathogenesis would greatly facilitate in improving therapeutic strategies. This review is a complement to another review article, recently published by our group, which covered the previous period of 2005-2012, and highlights recent advances and examples of the exploitation of MTDLs approach in the rational design of novel drug candidate prototypes for the treatment of AD. PMID- 29332564 TI - Mesenchymal Stem Cell Therapy in Intracerebral Haemorrhagic Stroke. AB - BACKGROUND: Spontaneous intracerebral haemorrhage (ICH) is a relatively common fatal disease, with an overall global incidence estimated at 24.6 per 100,000 person- years. Given the high degree of morbidity and mortality associated with ICH, therapies that may have neuroprotective effects are of increasing interest to clinicians. In this last context, cell therapies offer the promise of improving the disease course which cannot be addressed adequately by existing treatments. OBJECTIVE: The aim of this review is to evaluate the protective effects and molecular mechanisms of mesenchymal stem cells (MSCs) on haemorrhagic brain following ICH. We also discuss possible emerging therapeutic approaches worth of further research. METHODS AND RESULTS: The available literature on the therapeutic potential of MSCs in ICH animal models clearly demonstrated that MSCs enhance the functional recovery and reduce the volume of the infarct size exerting anti-inflammatory and angiogenic properties. However, the quality of the original articles investigating the efficacy of stem cell therapies in ICH animal models is still poor and the lack of ICH clinical trial does not permit to reach any relevant conclusions. CONCLUSION: Further studies have to be implemented in order to achieve standardized methods of MSCs isolation, characterization and administration to improve ICH treatments with MSCs or MSC-derived products. PMID- 29332566 TI - Stimuli Responsive Nanoparticles for Controlled Anti-cancer Drug Release. AB - Conventional drugs used for cancer chemotherapy have severe toxic side effects and show individually varied therapeutic responses. The convergence of nanotechnology, biology, material science and pharmacy offers a perspective strategy for cancer chemotherapy. Nanoparticles loaded with anti-cancer drug have been designed to overcome the limitations associated with conventional drugs, several nanomedicines have been approved by FDA and shown good performances in clinical practice. However, the therapeutic efficacies cannot be enhanced. Taking this into account, stimuli responsive nanoparticles present the ability to enhance therapeutic efficacy and reduce side effects. In this review, we systematically summarized the recent progresses of controlled anti-cancer drug release systems based on nanoparticles with different stimuli response including pH, temperature, light, redox and others. If the achievements of the past can be extrapolated into the future, it is highly likely that responsive nanoparticles with a wide array of desirable properties can be eventually developed for safe and efficient cancer therapy. PMID- 29332565 TI - Beyond the "Lock and Key" Paradigm: Targeting Lipid Rafts to Induce the Selective Apoptosis of Cancer Cells. AB - For more than 40 years, the fluid mosaic model of cellular membranes has supported our vision of an inert lipid bilayer containing membrane protein receptors that are randomly hit by extracellular molecules to trigger intracellular signaling events. However, the notion that compartmentalized cholesterol- and sphingomyelin-rich membrane microdomains (known as lipid rafts) spatially arrange receptors and effectors to promote kinetically favorable interactions necessary for the signal transduction sounds much more realistic. Despite their assumed importance for the dynamics of ligand-receptor interactions, lipid rafts and biomembranes as a whole remain less explored than the other classes of biomolecules because of the higher variability and complexity of their membrane phases, which rarely provide the detailed atomic level structural data in X-ray crystallography assays necessary for molecular modeling studies. The fact that some alkylphospholipids (e.g. edelfosine: 1-O octadecyl-2-O-methyl-rac-glycero-3-phosphocholine) selectively induce the apoptotic death of cancer cells by recruiting Fas death receptors and the downstream signaling molecules into clusters of lipid rafts suggests these potential drug targets deserve a more in-depth investigation. Herein, we review the structure of lipid rafts, their role in apoptotic signaling pathways and their potential role as drug targets for the treatment of cancer. PMID- 29332567 TI - Nociceptin /Orphanin FQ Peptide (NOP) Receptor Modulators: An Update in Structure Activity Relationships. AB - Nociceptin /Orphanin FQ Peptide" receptor (NOPr) is a G-protein-coupled receptor with the nociceptin/orphanin FQ peptide (N/OFQ) as endogenous agonist. It is expressed in the nervous system as well as in some non-neural tissues. Its activation has pronociceptive effect at the supraspinal level, whereas at the spinal level it produces nociceptive effects at low doses and antinociceptive effects at higher doses. NOPr is also involved in mood and blood pressure regulation, immunoregulation, airway constriction, feeding, urination, bowel motility, learning and memory. Selective NOPr agonists have been tested clinically as anxiolytics and antitussives, and the antagonists as analgesics, antidepressants and in the treatment of alcohol addiction. Two NOPr radioligands have also been tested in humans as neuroimaging agents. Furthermore, the partial agonist peptide SER100 and N/OFQ have been used in clinical trials, respectively for congestive heart failure and overactive bladder. The evidence of interactions between NOP and MU-opioid receptor (MOPr) receptors has been exploited in the use of mixed NOPr/MOPr modulators as analgesics and in the treatment of drug addiction. These drugs are devoid of typical opioid liabilities. In this review, we outline the latest advances in the structure-activity relationships (SAR) of NOPr agonists and antagonists, with emphasis on affinity, activity, selectivity and pharmacokinetic features. PMID- 29332568 TI - FGF-21 as a Potential Biomarker for Mitochondrial Diseases. AB - The diagnosis of mitochondrial diseases is still challenging due to clinical and genetical heterogeneity. The development of advanced technologies including Whole Exome- Sequencing (WES) and Whole-Genome-Sequencing (WGS) has led to improvements in genetic diagnosis. However, a reliable biomarker in serum could enhance and ease the diagnosis and indeed reduce the need for muscle biopsy. Several studies suggest Fibroblast growth factor 21 (FGF-21) as a biomarker for diagnosis in mitochondrial disorders. It is known, that in patients with mitochondrial disorders, the expression of FGF-21 gets elevated in an effort to counteract the underlying metabolic deficiency. The growth and differentiation factor 15 (GDF 15) has been described as a potential biomarker for mitochondrial diseases, too. In the present review, a literature research, using PubMed database about the reliability of FGF-21 as a biomarker for mitochondrial disorders and its comparison with GDF-15 has been performed. PMID- 29332570 TI - Proprotein Convertase Subtilisin/kexin type 9 Inhibition in Cardiovascular Prevention. AB - Elevated levels of Low Density Lipoprotein cholesterol (LDL-C) are directly associated with increased risk for atherosclerotic cardiovascular and cerebrovascular events. Statins have been used to control serum LDLC and this has translated into reduction in cardiovascular and cerebrovascular events. However, despite high dose statin therapy, LDL-C control may remain inadequate in some patients, particularly those with familial hypercholesterolemia. A new therapeutic approach has emerged in recent years with proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors. In this review, we describe the development and the use of this new class of drugs. PMID- 29332569 TI - Cancer Treatment with Liposomes Based Drugs and Genes Co-delivery Systems. AB - There are several mechanisms by which cancer cells develop resistance to treatments, including increasing anti-apoptosis, increasing drug efflux, inducing angiogenesis, enhancing DNA repair and altering cell cycle checkpoints. The drugs are hard to reach curative effects due to these resistance mechanisms. It has been suggested that liposomes based co-delivery systems, which can deliver drugs and genes to the same tumor cells and exhibit synergistic anti-cancer effects, could be used to overcome the resistance of cancer cells. As the co-delivery systems could simultaneously block two or more pathways, this might promote the death of cancer cells by sensitizing cells to death stimuli. This article provides a brief review on the liposomes based co-delivery systems to overcome cancer resistance by the synergistic effects of drugs and genes. Particularly, the synergistic effects of combinatorial anticancer drugs and genes in various cancer models employing multifunctional liposomes based co-delivery systems have been discussed. This review also gives new insights into the challenges of liposomes based co-delivery systems in the field of cancer therapy, by which we hope to provide some suggestions on the development of liposomes based co delivery systems. PMID- 29332571 TI - Role of Heart Rate Reduction in the Management of Myocarditis. AB - The morbidity of myocarditis demonstrates an upward tendency by years, is commonly defined as the inflammation of myocytes and is caused by multiple factors. With the development of the molecular biological technique, great breakthroughs in the diagnosis and understanding of pathophysiological mechanisms of myocarditis have recently been achieved. Several questions remain unresolved, however, including standard treatment approaches to myocarditis, which remain controversial and ambiguous. Heart rate, as an independent risk factor, has been shown to be related to cardiac disease. Recent studies also show that the autonomic nervous system is involved in immunomodulatory myocarditis processes. Heart rate reduction treatment is recommended in myocarditis based on a number of animal experiments and clinical trials. It is possible that heart rate-lowering treatments can help to attenuate the inflammatory response and myocyte injury and reverse ventricular remodeling. However, how to execute the protective effects of heart rate reduction on myocarditis is still not clear. In this review, we discuss the pathogenesis and pathophysiological process of viral myocarditis and propose heart rate lowering as a therapeutic target for myocarditis, especially in light of the third-generation beta-blockade carvedilol and funny channel blocker ivabradine. We also highlight some additional beneficial effects of such heart rate reduction agents, including anti-inflammatory, antioxidation, anti nitrosative stress, anti-fibrosis and antiapoptosis properties. PMID- 29332572 TI - Lipoprotein-associated Phospholipase A2 and Coronary Heart Disease. AB - In the last decades, the role of inflammation in the pathogenesis of atherosclerosis has been the topic of intense research. Several markers of inflammation have shown predictive value for first and recurrent coronary events in patients without and with established Coronary Heart Disease (CHD). Among these markers, lipoprotein- associated phospholipase A2 (Lp-PLA2) has recently received considerable attention. In the present review, the potential role of Lp PLA2 as a marker of CHD risk and as a therapeutic target is discussed. Elevated Lp- PLA2 mass and activity appears to be associated with increased risk for CHD, both in the general population and in patients with established CHD. However, it is unclear whether the measurement of Lp-PLA2 improves risk discrimination when incorporated in models that include traditional cardiovascular risk factors. Moreover, the lack of effect on CHD events of darapladib, a potent, selective Lp PLA2 inhibitor, in two large, randomized, placebo-controlled trials and the mostly negative findings of genetic association studies suggest that Lp-PLA2 is unlikely to represent a causal factor in atherogenesis. Therefore, it is doubtful whether Lp-PLA2 will constitute a therapeutic target for the prevention of CHD. PMID- 29332573 TI - Torsades de Pointes in Patients with Polymyalgia Rheumatica. AB - Polymyalgia rheumatica (PMR) represents the most common inflammatory rheumatic disease of the elderly. It is characterized by synovitis of proximal joints and extra-articular synovial structures, along with chronic high-grade systemic inflammation. PMR is closely related to giant cell arteritis (GCA), a large vessel vasculitis that involves the major branches of the aorta, particularly the extracranial branches of carotid artery including temporal arteries. It is currently believed that PMR and GCA may represent different manifestations of the same disease process. Chronic systemic inflammation is presently recognized as one of the key pathogenic mechanisms underlying cardiovascular disease and associated complications, including cardiac arrhythmias and sudden death. In this regard, several studies demonstrated that besides promoting structural heart disease, inflammatory activation may also be per se arrhythmogenic, via cytokine mediated effects on cardiac electrophysiology. In particular, increasing evidence points to inflammation as a novel risk factor for QTc prolongation and related life-threatening arrhythmias, specifically Torsade de Pointes (TdP). Starting from the report of two cases of TdP occurring in PMR patients with active disease and elevated circulating IL-6 levels, we here reviewed literature data regarding heart involvement and arrhythmic events in PMR/GCA, as well as TdP risk in inflammatory diseases. Potential underlying mechanisms were dissected, by focusing on the driving role of inflammatory activation. PMID- 29332574 TI - Biomacromolecular Based Fibers in Nanomedicine: A Combination of Drug Delivery and Tissue Engineering. AB - BACKGROUND: Biopolymers based materials (polysaccharides, lipids, proteins, and nucleic acids) are one of the basic resources in bio-engineering sciences because of desirable features. Moreover, nanobiotechnology innovates nanomaterial and associated technique in nano medicine (drug delivery and tissue engineering). METHODS: In the nano-medicine, fibers are introduced as a successful biomimetic extracellular matrix scaffolds and drug carrier systems. Electrospinning as a simple and cost-effective technique is used to design nanofibers. Natural polymers including chitosan, alginic acid, hyaluronic acid, collagen, gelatin, and albumin are excellent candidates for electrospinning. However, these types of biopolymers typically have difficulty in electrospinning. RESULTS: Therefore, for spinning of these polymers, the condition of the procedure including solvent, copolymer addition, cross-linker addition, and optimization of spinning should be done. CONCLUSION: The present study gathered information about fiber-based nanodevices from biopolymers in a drug transportation or tissue engineering. PMID- 29332576 TI - Current Understanding of Physicochemical Mechanisms for Cell Membrane Penetration of Arginine-rich Cell Penetrating Peptides: Role of Glycosaminoglycan Interactions. AB - Arginine-rich cell penetrating peptides (CPPs) are very promising drug carriers to deliver membrane-impermeable pharmaceuticals, such as siRNA, bioactive peptides and proteins. CPPs directly penetrate into cells across cell membranes via a spontaneous energy-independent process, in which CPPs appear to interact with acidic lipids in the outer leaflet of the cell membrane. However, acidic lipids represent only 10 to 20% of the total membrane lipid content and in mammalian cell membranes they are predominantly located in the inner leaflet. Alternatively, CPPs favorably bind in a charge density- dependent manner to negatively charged, sulfated glycosaminoglycans (GAGs), such as heparan sulfate and chondroitin sulfate, which are abundant on the cell surface and are involved in many biological functions. We have recently demonstrated that the interaction of CPPs with sulfated GAGs plays a critical role in their direct cell membrane penetration: the favorable enthalpy contribution drives the high-affinity binding of arginine-rich CPPs to sulfated GAGs, initiating an efficient cell membrane penetration. The favorable enthalpy gain is presumably mainly derived from a unique property of the guanidino group of arginine residues forming multidentate hydrogen bonding with sulfate and carboxylate groups in GAGs. Such interactions can be accompanied with charge neutralization of arginine-rich CPPs, promoting their partition into cell membranes. This review summarizes the current understanding of the physicochemical mechanism for lipid membrane penetration of CPPs, and discusses the role of the GAG interactions on the cell membrane penetration of CPPs. PMID- 29332575 TI - Protective Role of Italian Juglans regia L. nut Ethanolic Extract in Human Keratinocytes under Oxidative and Inflammatory Stress. AB - OBJECTIVE: In this research, fatty acid profile and polyphenolic content of an ethanolic extract of walnut from Juglans regia L. collected in Central Italy, were characterized. The potential antioxidant and anti-inflammatory effects of the extract were investigated in the human keratinocytes cell line. METHODS: Fatty acid profile was determined by gas chromatography/mass spectrometry analysis, total phenolic content by Folin-Ciocalteu method and aluminum chloride colorimetric method was used for determination of total flavonoids. Kertatinocytes were exposed to t-butyl hydroperoxide or Tumor Necrosis Factor alfa in the absence or presence of extract. Reduced glutathione was determined by Sedlak method; lipid peroxidation was assessed by measuring thiobarbituric acid reactive substances. t-butyl hydroperoxide and Tumor Necrosis Factor alfa-induced intracellular reactive oxygen species were monitored by fluorescent probes. The expression of some genes related to the inflammatory process (IL-6, IL-8, ikB, and ICAM) were analysed by Real-time PCR. RESULTS: JRE contains a favourable fatty acid profile with low saturated fats (19%) and high-unsaturated fats (81%) with a prevalence of the omega-6 linoleic acid (48%). Also a significant amount of polyphenols was found (5,0052 mg gallic acid equivalent/gdw). Antioxidant and anti-inflammatory properties of JRE were observed on analysed cellular model. JRE antioxidants counteracted ROS production, GSH depletion and lipid peroxidation as well downregulated the expression of some genes related to the inflammatory process. Moreover, polyunsaturated fatty acids exhibited anti-inflammatory properties. CONCLUSION: The obtained results uphold walnut as dietary adjunct in health promotion and drive towards its development in drug therapy against chronic inflammatory disorders, including inflammatory skin diseases. PMID- 29332577 TI - The Potential Use of Peptides in Cancer Treatment. AB - Conventional chemotherapeutic drugs have significant limitations. For example, tumors may develop resistance, cancers may relapse after treatment, and the drugs may induce secondary malignancies in the treatment of metastatic cancer. There is still a great need for drugs that are able to destroy cancer cells selectively, that is, to effectively treat slow-growing and dormant cells without being affected by chemoresistance mechanisms. A growing number of studies indicate that peptides may be beneficial for drug discovery and development. Peptides offer minimal immunogenicity, excellent tissue penetrability, low-cost manufacturability, and ease of modification for enhancing in vivo stability and biological activity, properties which make them ideal candidates for cancer treatment. This review highlights recent advances in and future prospects for the application of peptides as therapeutic agents for cancer therapy. We discuss the application of peptides in cancer therapy, alone and in combination with other peptides or small-molecule chemotherapeutic drugs, for use in targeted cancer therapy. Furthermore, we consider the use of peptides as a carrier for targeted molecular imaging in the diagnosis and follow-up treatment of cancer. This account also reviews the challenges of using peptide drugs and ways to overcome these limitations. The results obtained in studies presented in this paper indicate that peptides are promising candidates for targeted cancer therapy. PMID- 29332578 TI - Amyloid-beta Inhibits PDGFbeta Receptor Activation and Prevents PDGF-BBInduced Neuroprotection. AB - BACKGROUND: PDGFbeta receptors and their ligand, PDGF-BB, are upregulated in vivo after neuronal insults such as ischemia. When applied exogenously, PDGF-BB is neuroprotective against excitotoxicity and HIV proteins. OBJECTIVE: Given this growth factor's neuroprotective ability, we sought to determine if PDGF-BB would be neuroprotective against amyloid-beta (1-42), one of the pathological agents associated with Alzheimer's disease (AD). METHODS AND RESULTS: In both primary hippocampal neurons and the human-derived neuroblastoma cell line, SH-SY5Y, amyloid-beta treatment for 24 h decreased surviving cell number in a concentrationdependent manner. Pretreatment with PDGF-BB failed to provide any neuroprotection against amyloid-beta in primary neurons and only very limited protective effects in SH-SY5Y cells. In addition to its neuroprotective action, PDGF promotes cell growth and division in several systems, and the application of PDGFBB alone to serum-starved SH-SY5Y cells resulted in an increase in cell number. Amyloid-beta attenuated the mitogenic effects of PDGF-BB, inhibited PDGF BB-induced PDGFbeta receptor phosphorylation, and attenuated the ability of PDGF BB to protect neurons against NMDA-induced excitotoxicity. Despite the ability of amyloid-beta to inhibit PDGFbeta receptor activation, immunoprecipitation experiments failed to detect a physical interaction between amyloid-beta and PDGF BB or the PDGFbeta receptor. However, G protein-coupled receptor transactivation of the PDGFbeta receptor (an exclusively intracellular signaling pathway) remained unaffected by the presence of amyloid-beta. CONCLUSIONS: As the PDGF system is upregulated upon neuronal damage, the ability of amyloid-beta to inhibit this endogenous neuroprotective system should be further investigated in the context of AD pathophysiology. PMID- 29332579 TI - Alzheimer's Disease: A Systemic Review of Substantial Therapeutic Targets and the Leading Multi-functional Molecules. AB - Alzheimer's Disease (AD) is a fatal neurodegenerative disorder, having a complex aetiology with numerous possible drug targets. There are targets that have been known for years while more new targets and theories have also emerged. Beta amyloid and cholinesterases are the most significant biological targets for finding curative treatment of AD. The major class of drugs used for AD till now has been the Cholinesterase (ChE) inhibitors. Other prevailing models of molecular pathogenesis in AD include Neurofibrillary Tangles (NFTs) and amyloid deposition, tryptophan degradation pathway, kinase and phosphatase activity imbalance and neuroinflammation. The beta amyloid aggregation initiates flow of events resulting in neurotoxicity and finally clinical pathogenesis of AD. Furthermore, ApoE is another very significant entity involved in repairing and maintaining the neurons and has important role in neurodegeneration. Neuroinflammation being the primmest symptom for AD is essential to focus on. Multiple factors and complexity in interlinking disease progression pose huge challenge to find one complete curing drug. With so many promising molecules having multiform pharmacological profile from all over the world however facing failures in clinical trials indicates the need to consider all aspects of the old as well as new therapeutic targets of AD. Until the disease mechanism is better understood, it is likely that multiple targeting, symptomatic and diseasemodifying, is the way forward. Most recent approaches to find anti Alzheimer's agents have focused on multi-target directed agents that include targeting all glorious targets hypothesized against AD. New identification of prototype candidates that could be starting point of a new way of thinking drug design has been done and many drug candidates are under preclinical evaluation. The main focus of this review is to discuss the recent understanding of key targets and the development of potential therapeutic agents for the treatment of AD. It also documents the current therapeutic agents in clinical trials and under development based on their main mode of action. PMID- 29332580 TI - Aurora Kinase Inhibitors in Head and Neck Cancer. AB - Aurora kinases are a group of serine/threonine kinases responsible for the regulation of mitosis. In recent years, with the increase in Aurora kinase related research, the important role of Aurora kinases in tumorigenesis has been gradually recognized. Aurora kinases have been regarded as a new target for cancer therapy, resulting in the development of Aurora kinase inhibitors. The study and application of these small-molecule inhibitors, especially in combination with chemotherapy drugs, represent a new direction in cancer treatment. This paper reviews studies on Aurora kinases from recent years, including studies of their biological function, their relationship with tumor progression, and their inhibitors. PMID- 29332581 TI - Cetuximab and the Head and Neck Squamous Cell Cancer. AB - The Head and Neck Squamous Cell Cancer (HNSCC) is the most common type of head and neck cancer (more than 90%), and all over the world more than a half million people have been developing this cancer in the last years. This type of cancer is usually marked by a poor prognosis with a really significant morbidity and mortality. Cetuximab received early favor as an exciting and promising new therapy with relatively mild side effect, and due to this, received authorization in 2004 from the European Medicines Agency (EMA) and in 2006 from the Food and Drug Association (FDA) for the treatment of patients with squamous cell cancer of the head and neck in combination with radiation therapy for locally advanced disease. In this work we will review the application and the efficacy of the Cetuximab in the treatment of the HNSCC. PMID- 29332582 TI - Dual BACE-1/GSK-3beta Inhibitors to Combat Alzheimer's Disease: A Focused Review. AB - In industrialized countries, Alzheimer's disease represents the most devastating neurodegenerative disorder in elderly people and the search for a disease modifying agent is still justified by this unmet need. Several possible targets have been explored to find an appropriate drug therapy, and in this review, dual inhibitors of beta secretase and glycogen synthase kinase 3, recently reported in literature, will be appraised. Applying a ligand-based approach, the triazinone core emerged as a suitable scaffold to simultaneously bind the aspartic dyad of BACE-1 and the ATP site of GSK-3beta, leading to a series of small molecules endowed with a balanced micromolar affinity and a promising pharmacokinetic profile. Differently, by means of a structure-based approach, a series of well balanced dual binding molecules were designed, taking advantage of the versatility of the curcumin scaffold. For some of these new compounds a potential neuroprotective effect was also observed, due to their ability to counteract the oxidative stress through the inhibition of NQO1 enzyme. Finally, different virtual screening analyses were performed, leading to the identification of new potential scaffolds deserving further development. PMID- 29332583 TI - Eating Green: Shining Light on the Use of Dietary Phytochemicals as a Modern Approach in the Prevention and Treatment of Head and Neck Cancers. AB - Enthusiasm for the use of dietary bioactive compounds as chemopreventive agents and adjuvants for current therapies has increased laboratory research conducted on several types of cancers including Head and Neck Squamous Cell Carcinoma (HNSCC). The green chemoprevention movement is a modern approach to highlight healthy lifestyle changes that aim to decrease the incidence of HNSCC. A healthy diet can be an effective way to prevent the development of oral cancers. Discovery of the naturally occurring plant based compounds called phytochemicals has facilitated the development of new treatment strategies for patients that are at risk for, or have developed HNSCC. Many of these compounds have been shown to elicit very potent anti-carcinogenic properties. While there are many compounds that have been studied, the compounds from two specific categories of phytochemicals, phenolics (resveratrol, EGCG, curcumin, quercetin, and honokiol) and glucosinolates (sulforaphane, PEITC and BITC), are emerging as potent and effective inhibitors of oral carcinogenesis. These compounds have been shown to inhibit HNSCC growth through a variety of mechanisms. Research has demonstrated that these compounds can regulate cancer cell proliferation through the regulation of multiple cell signaling pathways. They can impede cell cycle progression, induce differentiation and apoptosis, prevent angiogenesis, and inhibit cancer cell invasive and metastatic properties. They can protect normal cells during treatment and reduce the damage caused by chemotherapy and radiotherapy. This review aims to provide an overview of some of the most effective phytochemicals that have the potential to successfully prevent and treat head and neck squamous cell carcinoma. PMID- 29332584 TI - Multicomponent Reactions for Multitargeted Compounds for Alzheimer's Disease. AB - Alzheimer's Disease (AD) is a multifactorial and fatal neurodegenerative disorder affecting around 35 million people worldwide, which is characterized by decline of cholinergic function, deregulation of amyloid beta (Abeta) oligomers formation and Abeta fibril deposition. Multi-Target- Directed Ligands (MTDLs) have emerged as an original strategy for developing new therapeutic agents on AD. Multicomponent Reactions (MCRs) are a useful alternative to sequential multistep syntheses, allowing scaffold diversity and a rapid and easy access to biologically relevant compounds. The biological diversity of MCRs is very rich providing great possibilities for researchers interested in bioactive small molecular weight compounds. Since the MTDL strategy has been used to develop compounds endowed with the capacity to interact with different targets, versatile compound libraries may be obtained by MCRs according to the well established features of each target. Thus, either MTDLs or monotarget compounds have been developed by MCRs to address different factors implicated in AD. This work focuses on antioxidants, calcium channel modulators, both AChE and BuChE inhibitors, BACE1 inhibitors, and modulators of the nuclear factor (erythroid derived 2)-like 2. First, we discuss the Biginelli reaction and its use for developing new interesting compounds for AD, followed by the contribution of Ugi reaction and, finally, the interest of other MCRs in the same topic. PMID- 29332585 TI - New Tacrines as Anti-Alzheimer's Disease Agents. The (Benzo)Chromeno- PyranoTacrines. AB - Tacrine was the first drug approved by FDA (US) for the treatment of Alzheimer's disease suffering patients. Nowadays, this agent has been withdrawn from the clinics due to secondary effects, which, most importantly, include hepatotoxicity. However, the research on new tacrine analogues devoid of these therapeutically undesirable effects, but benefiting of their high and well known positive cholinergic power, has produced a number of new non-hepatotoxic tacrines. In this context, our laboratory has recently prepared a new set of heterocyclic tacrines by changing the benzene ring present in tacrine by appropriate heterocyclic motifs. Based on this approach, in this review we summarize the results that we have found in the ChromenoPyranoTacrines, one of the families of tacrine analogues. This highlights their pharmacological profile, such as their cholinesterase inhibition power, calcium channel blockade, antioxidant capacity, Abeta-anti-aggregating, and neuroprotective properties. As a result of this work we have identified permeable, neuroprotective MTD tacrines racemic hit-tacrines 11-amino-12-(3,4,5-trimethoxyphenyl)-7,9,10,12-tetrahydro-8H chromeno[2,3- b]quinolin-3-ol (6g) and 14-(3,4-dimethoxyphenyl)-9,11,12,14 tetrahydro-10H-benzo[5,6] chromeno [2,3-b] quinolin-13-amine (7i),devoid of toxic effects and showing potent anti-cholinesterasic properties, that deserve attention and further development in order to find new, and more efficient drugs, for AD therapy. PMID- 29332586 TI - Recent Developments on Multi-Target-Directed Tacrines for Alzheimer's Disease. I. The Pyranotacrines. AB - Tacrine was the first drug to display beneficial effects on cognitive impairment of Alzheimer Disease (AD) patients. Unfortunately, many treated patients displayed related hepatotoxicity, and hence this drug was withdrawn. Notwithstanding, recent efforts have been directed to design small tacrine analogues targeting the underlying pathogenic mechanisms of AD. In this context, we have developed a number of pyranotacrines by changing the benzene fused ring in tacrine by a 4Hpyran. Based on this strategy, in this account we will show the tacrine analogues that we have designed, synthesized and evaluated as potential multipotent agents for AD in the last years. We have demonstrated that this approach is possible, and that a number of readily available tacrine analogues show cholinesterase inhibition power, as well as other pharmacological properties, such as calcium channel blockade, antioxidant properties, neuroprotection, Abeta-amyloid inhibition aggregation capacity, etc., making them suitable multipotent molecules for further development for the potential treatment of AD. PMID- 29332587 TI - Lysosomal Acid Lipase Deficiency: Could Dyslipidemia Drive the Diagnosis? AB - LAL-deficiency (LAL-D) is a rare and systemic condition, secondary to LIPA gene mutations, responsible for lysosomal accumulation of cholesteryl esters and triglycerides, whose manifestations are very heterogeneous in terms of the age of onset, severity and the type of clinical and radiological manifestations. Dyslipidemia, hepatomegaly and hepatosteatosis with increased levels of transaminases are the most common features. The increased risk of premature atherosclerosis and cardiovascular disorders, secondary to a generalized alteration of lipid profile and lipoprotein dysfunction associated with LAL-D, has been increasingly pointed out. Therefore, medical awareness towards LAL deficiency should be increased, since this condition has to be considered in the differential diagnosis of pediatric conditions manifested with dyslipidemia and hepatic accumulation of intracellular products. On the other hand, early patient identification and management remain challenging. PMID- 29332588 TI - Treatment Strategies for Hypercholesterolemia. AB - BACKGROUND: Atherosclerotic disease is a leading cause of morbidity and mortality in adults and is generally thought of as only affecting adults. However, the pathologic changes in vessels leading to atherosclerosis, and an increased risk of cardiovascular disease, have been shown to begin in early adolescence. OBJECTIVES: There is a growing body of literature suggesting that earlier treatment, through lifestyle changes and pharmacotherapy, can help reduce this risk. A growing number of children are presenting with elevated cholesterol because of the increased prevalence of obesity and diabetes mellitus. METHODS: In addition, an increasing number of children are living with previously fatal diseases that increase the risk of atherosclerosis, either because of the disease process or as adverse effect of the treatment, such as human immunodeficiency virus, Kawasaki disease, and cardiac transplantation. RESULT AND CONCLUSION: In addition, specific disorders of cholesterol metabolism, such as Familial Hypercholesterolemia (FH) may be encountered in a pediatric practice. PMID- 29332589 TI - Validation of an Arabic Version of the Obesity-Related Wellbeing (ORWELL 97) Questionnaire in Adults with Obesity. AB - BACKGROUND: No specific questionnaire that evaluates Health-Related Quality Of Life (HRQOL) in individuals with obesity is available in the Arabic language. The aim of this study was therefore to propose and examine the validity and reliability of an Arabic language version of the ORWELL 97, a validated obesity related HRQOL questionnaire. METHODS: The ORWELL 97 questionnaire was translated from English to Arabic language and administered to 318 Arabic-speaking participants (106 from clinical and 212 from community samples), and underwent internal consistency, test-retest reliability, construct and discriminative validity analysis. RESULTS: Internal consistency and the test-retest reliability were excellent for ORWELL 97 global scores in the clinical sample. Participants with obesity displayed significantly higher ORWELL 97 scores than participants from the community sample, confirming the good discriminant validity of the questionnaire. Confirmatory factor analysis in the clinical sample revealed a good fit for a modified two-factor structure. CONCLUSION: Overall, the Arabic version of the ORWELL 97 can be considered validated in Arabic adult patients with obesity, paving the way to further assessment of its responsiveness in measuring changes in health-related quality of life associated with obesity treatment. PMID- 29332590 TI - Oxidative Stress and Cardiac Remodeling: An Updated Edge. AB - BACKGROUND: A common phenotype associated with heart failure is the development of cardiac hypertrophy. Cardiac hypertrophy occurs in response to stress, such as hypertension, coronary vascular disease, or myocardial infarction. The most critical pathophysiological conditions involved may include dilated hypertrophy, fibrosis and contractile malfunction. The intricate pathophysiological mechanisms of cardiac hypertrophy have been the core of several scientific studies, which may help in opening a new avenue in preventive and curative procedures. OBJECTIVES: To our knowledge from the literature, the development of cardiac remodeling and hypertrophy is multifactorial. Thus, in this review, we will focus and summarize the potential role of oxidative stress in cardiac hypertrophy development. CONCLUSION: Oxidative stress is considered a major stimulant for the signal transduction in cardiac cells pathological conditions, including inflammatory cytokines, and MAP kinase. The understanding of the pathophysiological mechanisms which are involved in cardiac hypertrophy and remodeling process is crucial for the development of new therapeutic plans, especially that the mortality rates related to cardiac remodeling/dysfunction remain high. PMID- 29332591 TI - Anti-Trypanosoma cruzi Activity in vitro of Phases and Isolated Compounds from Excoecaria lucida Leaves. AB - BACKGROUND: Chagas disease is caused by the protozoan parasite Trypanosoma cruzi. This illness is found mainly in 21 Latin American countries and an estimated 8 million people are infected worldwide. The unsatisfactory chemotherapy provokes severe toxicity and resistant strains. Medicinal plants constitute a promising source of new drugs and remedies against all kinds of disorders, mainly infectious diseases arousing interest worldwide. OBJECTIVE: The aim of this study is the isolation, structural identification and evaluation of the trypanocidal activity of samples present in the Excoecaria lucida Sw. leaves. METHODS: Total extract (TE) of E. lucida Sw. leaves was obtained by ethanol extract therefore fractionated sequentially with hexane, ethyl acetate and n-butanol, to obtain three phases: Hex, EA and But, respectively. Ellagic acid (EL1) was purified from both EA and But phases, while EL2; a 1:1 stigmasterol-3-O-beta-D-glucopyranoside plus sitosterol-3-O-beta-D-glucopyranoside mixture was obtained from the Hex phase. Activity assays were performed using bloodstream and intracellular forms of T. cruzi and cytotoxicity assays using L929 fibroblasts. RESULTS: The EL1 and EL2 samples were more active against bloodstream trypomastigote forms with EC50 of 53.0+/-3.6 and 58.2+/-29.0 ug/mL, respectively; at 100 ug/mL. These samples also showed 70% of inhibition of L929 cells infection. Toxicity assays demonstrated that after 96 h of treatment only the fractions Hex and EA presented detectable cytotoxicity. CONCLUSION: Ellagic acid, stigmasterol-3-O-beta-D glucopyranoside and sitosterol-3-O-beta-Dglucopyranoside are reported for the first time in E. lucida Sw. leaves as well as their biological activity studies supporting further investigations for Chagas disease treatment. PMID- 29332592 TI - Construction of an M1GS Ribozyme for Targeted and Rapid mRNA Cleavage; Application on the Ets-2 Oncogene. AB - BACKGROUND: RNase P-mediated cleavage of target RNAs has been proposed as a promising tool for gene silencing. Ets-2 proto-oncogene controls the expression of a wide variety of genes involved in cancer and immunity. OBJECTIVE: Construction of a functional RNase P-based ribozyme (M1GS303) that targets Ets-2 mRNA. METHODS: The accessible sites for targeting of Ets-2 mRNA were identified by footprinting analysis. M1GS303 ribozyme was constructed by cloning. The activity of the ribozyme in the presence or absence of spiramysin in E. coli cells and human cell lines was quantified by RT-PCR. The efficiency of the ribozyme in silencing the endogenous expression of Ets-2 in human cell lines was examined by RT-PCR, western blot and immunofluorescence analysis. RESULTS: In E. coli cells co-transformed with plasmids bearing M1GS303 and the ets-2 target gene, Ets-2 mRNA was decreased by 93% 12h after IPTG induction in the absence, and after 4h in the presence of spiramycin. Ets-2 was rapidly downregulated in the human embryonic kidney cell line HEK293 and the T-cell line Jurkat transfected with an M1GS303 plasmid; the silencing effect of M1GS303 was considerably faster when the cells were cultured with spiramycin. In Jurkat cells, Ets-2-downregulation resulted in upregulation of the expression of IL-2, IL-4 and IFN-alpha cytokine genes that have Ets-2 binding sites on their promoters, whereas it had no effect on the expression of the IL-10 gene that lacks Ets-2 binding sites on its promoter. CONCLUSIONS: M1GS303 ribozyme cleaves effectively Ets-2 mRNA in bacteria and mammalian cells, and its activity is enhanced by spiramycin. Downregulation of ets-2 gene in the T-cell line Jurkat upregulates IL-2, IL-4 and IFN-alpha cytokine genes. M1GS technology may be a better alternative to conventional gene-interference therapies and the delineation of the effects of gene silencing in various pathologies. PMID- 29332593 TI - Facile Synthesis, Crystal Structure, DFT Calculation and Biological Activities of 4-(2-fluorophenyl)-3-(3-methoxybenzyl)-1H-1,2,4-triazol-5 (4H)-one (5). AB - BACKGROUND: In the past few decades, design, synthesis, and characterization of novel heterocyclic compounds with auspicious biological profile received the considerable attention of the scientific community. Among them, the small and simple organic molecular backbone like triazole moiety have a broad spectrum of applications in the medicinal as well as diagnostic areas. OBJECTIVE: The objective of present study was synthesis, characterization, and exploration of biological profile of 4-(2-fluorophenyl)-3-(3-methoxybenzyl)-1H-1,2,4-triazole 5(4H)-one (5). The tautomeric interconversion of the molecule was observed by the single crystal XRD and DFT analysis. METHODS: N-(2-fluorophenyl)-2-[2-(3 methoxyphenyl)acetyl]hydrazine carboxamide (4) was synthesized by the condensation of 2-(3-methoxyphenyl)acetohydrazide (3) with 1-fluoro-2- isocyanatobenzene. The dehydrocyclization of compound (4) yielded target compound (5) by refluxing in 2 N aqueous sodium hydroxide solutions. The target molecule was characterized by FTIR, 1H NMR, 13C NMR, single crystal X-ray diffraction analysis and DFT calculation. The enzymatic assay measurements were carried out by using a microplate reader (OPTI Max, Tunable Microplate Reader; Wavelength range: 340-850 nm; for 96-well plates) while DFT calculation was performed by Gaussian 09 package. RESULTS: The XRD result and DFT calculations showed that molecule 5 predominantly exists in thione conformation and crystallized in the triclinic system of P-1 space group. Furthermore, for the practical applicability of synthesized compound 5, the in vitro acetylcholinesterase as well as alpha glucosidase inhibition activities were performed and found moderate enzyme inhibition potential comparable with that of reference inhibitors. CONCLUSION: This study might be helpful for future design and development of potent enzyme inhibitor to control Alzheimer's as well as diabetic disease. The DFT and single crystal XRD analysis data might be helpful for understanding the mechanism of drug binding and its mode of action. PMID- 29332595 TI - New Bis-Pyrazolones as Potential Leads for ROS Inhibition; Environment Friendly Green Synthesis, Structural Characterization, and In Vitro Studies. AB - BACKGROUND: Pyrazolones have identified as significant antioxidant agents and many marketed and clinically prescribed NSAIDs have pyrazolone ring as main scaffold. METHOD: Keeping in consideration the antioxidant potential of pyrazolone scaffold, new bispyrazolones 3-30 were synthesized by a green and enviroment friendly reaction route, in which two equivalents of 1-(4 chlorophenyl)-3-methyl-1H-pyrazol-5-ol were treated with one equivalent of benzaldehyde derivatives without any catalyst. All compounds were structurally characterzied by 1H-NMR and FAB analysis. 13C-NMR of selected compounds was also recorded. All compounds gave satisfactory elemental analyses and found in good agreement with calculated values. RESULTS: Synthetic bis-pyrazolones 3-30 were evaluated for their oxidative burst inhibitory effect of zymosan stimulated whole blood phagocytes by using luminol enhanced chemilluminescence technique. All molecules demonstrated the potent ROS inhibition activity in the range of IC50 = 1.2 +/- 0.1-48.8 +/- 3.9 uM as compared to the standard ibuprofen (IC50 = 54.2 +/ 9.2 MUM). The purity of active compounds was checked by HPLC. CONCLUSION: This study has identified a number of non-acidic lead molecules for future research on ROS inhibitors. PMID- 29332594 TI - In vitro and in silico Evaluation of Non-Quaternary Reactivators of AChE as Antidotes of Organophosphorus Poisoning - a New Hope or a Blind Alley? AB - BACKGROUND: In the last decade, the concept of uncharged reactivators potentially able to penetrate the CNS has been introduced as an alternative to the classic charged oxime reactivators. However, this concept brings with it several associated drawbacks such as higher lipophilicity, difficulty in administration, lower affinity to cholinesterases, and higher toxicity risk. OBJECTIVE: In this study, we compare data obtained for a set of five classic charged reactivators and a set of three recently published uncharged oximes supplemented by two novel ones. METHODS: This time, we used only in silico prediction and in vitro approaches. RESULTS: Our data showed that tested uncharged oximes have low affinity for cholinesterases, do not possess high reactivation potency, and certainly represent a greater toxicity risk due to higher lipophilicity. We assume that balanced physicochemical properties will be required for the successful treatment of OP poisoning. Nevertheless, the compound meeting such criteria and pinpointed in silico (K1280) failed in this particular case. CONCLUSION: From the presented data, it seems that the concept of uncharged reactivators will have to be modified, at least to improve the bioavailability and to satisfy requirements for in vivo administration. PMID- 29332596 TI - Synthesis of Thiocarbohydrazones and Evaluation of their in vitro Antileishmanial Activity. AB - BACKGROUND: Leishmaniasis is a protozoan parasitic vector-borne disease which is endemic in 88 tropical countries. Infected sandfly is the main vector of this disease, while there are several other vectors, parasites, and reservoirs involved in the transmission of this disease. Leishmania donovani, L. infantum, and L. chagasi are common disease causing species, transmitted through sandflies. Leishmaniasis is a neglected tropical disease with broad spectrum of clinical manifestations. Cutaneous leishmaniasis is prevalent in many countries, including Pakistan. METHODS: Thiocarbohydrazones (1-20) were synthesized through one pot method by refluxing thiocarbahydrazide with different substituted benzaldehydes in ethanol in the presence of acetic acid as a catalyst. These synthetic compounds were evaluated for their potential antileishmanial activity in vitro against Leishmania major promastigotes. RESULTS: Compounds 5-8, 11, 14, 16, 17, 19 and 20 were reported earlier, while compounds 2-4, 9, 10, 12, 13 and 15 were identified as were derivatives. Compounds 1-20 demonstrated antileishmanial activities with IC50 values between 1.63 +/- 0.05 - 64.82 +/- 0.17 uM, as compared to the standard drug pentamidine (IC50 = 5.09 +/- 0.04 uM). Compounds 2 (IC50 = 1.63 +/- 0.05 uM), 11 (IC50 = 2.33 +/- 0.01 uM), 4 (IC50 = 11.03 +/- 0.20 uM), and 10 (IC50 = 11.63 +/- 0.06 uM) displayed comparable antileishmanial activities to the standard drug pentamidine. However, compounds 13, 15-17, and 20 with IC50 values 36.95 +/- 0.025, 64.82 +/- 0.17, 64.27 +/- 0.38, 62.34 +/- 0.38, and 40.47 +/- 0.05 uM, respectively, showed a moderate antileishmanial activity. In contrast, compounds 1, 3, 5-9, 12, 14, 18, and 19 demonstrated less than 50% growth inhibition of promestigotes of L. major, and thus considered as inactive. CONCLUSION: In thiocarbohydrazone derivatives, different substituents at aryl part may be responsible for a varying degree of antileishmanial activity in vitro. Consequently, these compounds might have a potential for further studies as a new class of antileishmanial agents. PMID- 29332597 TI - Synthesis of a Novel Class of 1,3-oxathiolane Nucleoside Derivatives of T- 705 and Evaluation of Their Anti-influenza A Virus and Anti-HIV Activity. AB - BACKGROUND: T-705 (Favipiravir) is a broad spectrum antiviral agent approved for stockpiling in Japan and currently in Phase 3 testing in the United States. Against influenza, it acts as a prodrug, converted intracellularly to selectively inhibit viral RNA-dependent RNA polymerase or similar enzymes. This is regarded as a novel antiviral mechanism of action, reducing crossresistance to other existing anti-influenza drugs. OBJECTIVE: To develop new analogs, a class of 1,3 oxathiolane nucleoside derivatives of T-705 was designed and synthesized in this work. RESULTS: Anti-influenza activity and Anti-HIV activity of these compounds were evaluated. Compound 1a displayed activity against A H1N1 with an IC50 of 40.4 umol/L. Compound 1b showed weak activity against HIV with a viral suppression rate of 70-80% at 30 umol/L. CONCLUSION: A class of 1,3-oxathiolane nucleoside derivatives of T-705 was designed and synthesized, and one of them was identified as a novel scaffold against viral infection. PMID- 29332598 TI - Synthesis of New Isoxazole-, Pyridazine-, Pyrimidopyrazines and Their Anti Inflammatory and Analgesic Activity. AB - BACKGROUND: Isoxazoles, pyridazines, and pyrimidopyrazines have recently attracted attention due to their potent pharmacological activities. They exhibited anticancer, neuroprotective, analgesic and anti-inflammatory effects. OBJECTIVE: The study aimed to synthesize novel isoxazoles, pyridazines, and pyrimidopyrazines through efficient high yield protocol for evaluating their analgesics and anti-inflammatory activities. METHOD: A series of novel isoxazole , pyridazine-, pyrimidopyrazine derivatives was prepared from 5,8-alkyl-1,3 dimethyl-5,6-dihydropyrimido[5,6-e]pyrazine-2,4,7-trione (1a,b) as the starting material. RESULTS: The prepared derivatives were synthesized in moderate to good yields (60-75%) in a stepwise efficient protocol under mild condition. These new compounds have been proven by several spectroscopic techniques as IR, 1D and 2D NMR techniques and mass analysis. The in vivo anti-inflammatory was assessed for the synthesized compounds using carrageenan-induced rat hind paw edema model. Also, the in vivo analgesic activity for these products was examined utilizing hot-plate and acetic acid-induced writhing response assays. CONCLUSION: The isoxazole derivatives (3a-f) showed the most forceful anti-inflammatory and analgesic activities. Pyrimidopyrazines (4a-f) demonstrated weaker but comparable antiinflammatory and analgesic activities to the positive controls. PMID- 29332599 TI - The Synthesis of Chalcones as Anticancer Prodrugs and their Bioactivation in CYP1 Expressing Breast Cancer Cells. AB - BACKGROUND: Although the expression levels of many P450s differ between tumour and corresponding normal tissue, CYP1B1 is one of the few CYP subfamilies which is significantly and consistently overexpressed in tumours. CYP1B1 has been shown to be active within tumours and is capable of metabolising a structurally diverse range of anticancer drugs. Because of this, and its role in the activation of procarcinogens, CYP1B1 is seen as an important target for anticancer drug development. OBJECTIVE: To synthesise a series of chalcone derivatives based on the chemopreventative agent DMU-135 and investigate their antiproliferative activities in human breast cancer cell lines which express CYP1B1 and CYP1A1. METHOD: A series of chalcones were synthesised in yields of 43-94% using the Claisen-Schmidt condensation reaction. These were screened using a MTT assay against a panel of breast cancer cell lines which have been characterised for CYP1 expression. RESULT: A number of derivatives showed promising antiproliferative activities in human breast cancer cell lines which express CYP1B1 and CYP1A1, while showing significantly lower toxicity towards a non tumour breast cell line with no CYP expression. Experiments using the CYP1 inhibitors acacetin and alpha-naphthoflavone provided supporting evidence for the involvement of CYP1 enzymes in the bioactivation of these compounds. CONCLUSION: Chalcones show promise as anticancer agents with evidence suggesting that CYP1 activation of these compounds may be involved. PMID- 29332600 TI - Finding Novel Anti-carcinomas Compounds by Targeting SFRP4 Through Molecular Modeling, Docking and Dynamic Simulation Studies. AB - BACKGROUND: Secreted Frizzled-Related Protein 4 (SFRP4) is a glycoprotein that acts as a competitor of both canonical and non-canonical Wnt pathways. SFRP4 is mostly expressed in ovary and plays a significant role as a target molecule to cure ovarian carcinoma. OBJECTIVE: Multiple chemical agonists are being used to cure ovary melanoma. We are interested in theoretically analyzing the compounds through computational approaches for their potential inhibitory effects against SFRP4. METHODS: Compounds were sketched in Chemsketch drawing tool and minimized through chimera tool. Because the crystal structure of SFRP4 is not available in Protein Data Bank, homology modeling approach was used to predict Three Dimensional (3D) crystal structure of SFRP4. Moreover, multiple computational approaches such as molecular docking and Molecular Dynamic (MD) simulations along with various online tools were employed to screen the best inhibitor against ovary melanoma. RESULTS: The docking results showed that 1d and 1e compounds revealed significant binding energy values (-9.10 and -9.00 kcal/mol, respectively) compared with the standard drugs such as cis-platin and docetaxel ( 3.30, -10.80 kcal/mol), respectively. Moreover, MD simulation results showed that 1d has little fluctuations throughout the simulation period as depicted by the root mean square deviation and root mean square fluctuation graphs. CONCLUSION: The present in-silico study provides a deeper insight into the structural attributes of 1d compound and its overall molecular interactions against SFRP4 and gives a hypothetical gateway to use this compound as a potential inhibitor against ovarian carcinoma. PMID- 29332601 TI - Quantitative Structure-activity Relationship Study of Betulinic Acid Derivatives Against HIV using SMILES-based Descriptors. AB - BACKGROUND: Human Immunodeficiency Virus (HIV) is the causative agent of Acquired Immunodeficiency Syndrome (AIDS) that imposes a global health burden. Therefore, HIV therapeutic agents have been discovery and development. OBJECTIVE: To construct Quantitative-structure Activity Relationship (QSAR) models of betulinic acid derivatives with anti-HIV activity using Simplified Molecular-Input Line Entry System (SMILES)- based descriptors. METHODS: A data set of 107 betulinic acid derivatives and their anti-HIV activity was used to develop QSAR models. The SMILES format of the compounds was employed as descriptors for model construction using the CORAL software by means of the Monte Carlo method. RESULTS: Constructed QSAR models provided good correlation coefficients (R2) and root mean square error (RMSE) with values in the range of 0.5660-0.5890 and 0.963-1.020, respectively, for the training set, R2 value of 0.7206-0.7837 and RMSE as 0.609 1.250, respectively, for the calibration set, and R2 value of 0.6257-0.7748 and RMSE as 0.837-0.995, respectively, for the validation set. The best QSAR model displayed statistical parameters for training set: R2 = 0.5660 and RMSE = 0.963; calibration set: R2 = 0.7273 and RMSE = 0.609, and validation set: R2 = 0.7748 and RMSE = 0.972. In addition, features of the molecular structure that are promoters of the endpoint increase and decrease were defined and discussed. These are the basis for the mechanistic interpretation of the suggested models. CONCLUSION: These findings provide useful knowledge for guiding the design of novel compounds with promising anti-HIV activity. PMID- 29332602 TI - Nanoemulsion Strategy for Ursolic and Oleanic Acids Isolates from Plumeria Obtusa Improves Antioxidant and Cytotoxic Activity in Melanoma Cells. AB - BACKGROUND: Triterpenoids are an important class of natural bioactive products present in many medicinal plants. OBJECTIVE: The aim of present study is to investigate the antioxidant and anticarcinogenic potential of Oleanolic Acid (OA) and Ursolic Acid (UA) on B16 murine melanoma cell line isolated from Plumeria obtusa, free and loaded in a nanoemulsion (NEm) system. METHODS: The nanoemulsion was characterized by dynamic light scattering, transmission electron microscopy. The viscosity was also evaluated. The antioxidant activity was determined by the reduction of 2,2-diphenyl-2- picrylhydrazyl (DPPH) free radical. In vitro proliferation studies were determined using the sulforhodamine-B method. RESULTS: OA/UA natural mixture exhibited high percentage of inhibition of DPPH (86.06% and 85.12%, with and without irradiation). Percentages of inhibition higher than 85% in samples with and without ultraviolet irradiation were recorded when loaded in the NEm system. The natural mixture incorporated into the NEm showed cytotoxic activity from 2.9 uM, whereas the free compounds from 17.4 uM. CONCLUSION: We conclude that these pentacyclic triterpenes loaded in a NEm system could be considered as a new potential tool for further investigation as anticancer agents. PMID- 29332603 TI - Previous use of Statins and Atrial Electrical Remodeling in Patients with Cryptogenic Stroke. AB - BACKGROUND: In the general population the leading cause of cardioembolic stroke is atrial fibrillation (AF). A silent AF is also the possible cause of many cryptogenic strokes. P wave dispersion (PWD), a predictor of AF, has been proposed as a marker of silent AF occurrence in these strokes. PWD correlates with high-sensitive C-reactive protein levels reflecting the role of inflammation in promoting a slowed and inhomogeneous atrial conduction. Statins have a multitude of additional effects beyond lipid lowering, in particular anti inflammatory effects that may influence atrial conduction. OBJECTIVE: The aim of this study was to evaluate the effects of previous statin use on PWD in patients with cryptogenic stroke, in order to highlight a possible role for statins in preventing atrial conduction alterations that predispose to AF. METHOD: We enrolled 131 patients (67 males, 64 females; mean age 69+/-13 years) with cryptogenic stroke. All patients underwent neuroimaging examination, arterial ultrasound examination, echocardiography and ECG. PWD was measured in all subjects. RESULTS: Patients previously treated with statins (n: 34) had lower PWD and P index values in comparison with no-statin group (41.7+/-12.2 vs 48.7+/-15.2 ms, p=0.01, and 14.2+/-3.7 vs 16.5+/-5.3 ms, p=0.02, respectively). CONCLUSIONS: Our results show lower PWD values in cryptogenic stroke patients previously treated with statins. These findings provide support to the hypothesis that statins may play a role in modulating atrial electrophysiological and structural properties, preventing the occurrence of a slowed and heterogeneous atrial conduction and finally, reducing the occurrence of AF. PMID- 29332604 TI - The effect of an adenosine A2A agonist on intra-tumoral concentrations of temozolomide in patients with recurrent glioblastoma. AB - BACKGROUND: The blood-brain barrier (BBB) severely limits the entry of systemically administered drugs including chemotherapy to the brain. In rodents, regadenoson activation of adenosine A2A receptors causes transient BBB disruption and increased drug concentrations in normal brain. This study was conducted to evaluate if activation of A2A receptors would increase intra-tumoral temozolomide concentrations in patients with glioblastoma. METHODS: Patients scheduled for a clinically indicated surgery for recurrent glioblastoma were eligible. Microdialysis catheters (MDC) were placed intraoperatively, and the positions were documented radiographically. On post-operative day #1, patients received oral temozolomide (150 mg/m2). On day #2, 60 min after oral temozolomide, patients received one intravenous dose of regadenoson (0.4 mg). Blood and MDC samples were collected to determine temozolomide concentrations. RESULTS: Six patients were enrolled. Five patients had no complications from the MDC placement or regadenoson and had successful collection of blood and dialysate samples. The mean plasma AUC was 16.4 +/- 1.4 h ug/ml for temozolomide alone and 16.6 +/- 2.87 h ug/ml with addition of regadenoson. The mean dialysate AUC was 2.9 +/- 1.2 h ug/ml with temozolomide alone and 3.0 +/- 1.7 h ug/ml with regadenoson. The mean brain:plasma AUC ratio was 18.0 +/- 7.8 and 19.1 +/- 10.7% for temozolomide alone and with regadenoson respectively. Peak concentration and Tmax in brain were not significantly different. CONCLUSIONS: Although previously shown to be efficacious in rodents to increase varied size agents to cross the BBB, our data suggest that regadenoson does not increase temozolomide concentrations in brain. Further studies exploring alternative doses and schedules are needed; as transiently disrupting the BBB to facilitate drug entry is of critical importance in neuro oncology. PMID- 29332605 TI - Antidepressant use during pregnancy and risk of autism spectrum disorder and attention deficit hyperactivity disorder: systematic review of observational studies and methodological considerations. AB - BACKGROUND: Antidepressant exposure during pregnancy has been associated with an increased risk of autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) in several observational studies. We performed a systematic review of these studies to highlight the effect that important methodological limitations have on such analyses and to consider approaches to the conduct, reporting and interpretation of future studies. METHODS: A review of MEDLINE and EMBASE identified case-control, cohort and sibling studies assessing the risk of ASD and ADHD with antidepressant use during pregnancy. Approaches to confounding adjustment were described. Crude and adjusted effect estimates for comparisons between antidepressant exposure during pregnancy vs. all unexposed women were first meta-analysed using a generic inverse variance method of analysis, followed by effect estimates for alternative pre-selected comparison groups. RESULTS: A total of 15 studies measuring ASD as an outcome (involving 3,585,686 children and 40,585 cases) and seven studies measuring ADHD as an outcome (involving 2,765,723 patients and 52,313 cases) were identified. Variation in confounding adjustment existed between studies. Updated effect estimates for the association between maternal antidepressant exposure during pregnancy vs. all unexposed women remained statistically significant for ASD (adjusted random-effects risk ratio [RaRR] 1.53, 95% confidence interval [CI] 1.31-1.78). Similar significant associations were observed using pre-pregnancy maternal antidepressant exposure (RaRR 1.48, 95% CI 1.29-1.71) and paternal antidepressant exposure during pregnancy (1.29, 95% CI 1.08-1.53), but analyses restricted to using women with a history of affective disorder (1.18, 95% CI 0.91 1.52) and sibling studies (0.96, 95% CI 0.65-1.42) were not statistically significant. Corresponding associations for risk of ADHD with exposure were: RaRR 1.38, 95% CI 1.13-1.69 (during pregnancy), RaRR 1.38, 95% CI 1.14-1.69 (during pre-pregnancy), RaRR 1.71, 95% CI 1.31-2.23 (paternal exposure), RaRR 0.98, 95% CI 0.77-1.24 (women with a history of affective disorder) and RaRR 0.88, 95% CI 0.70-1.11 (sibling studies). CONCLUSIONS: Existing observational studies measuring the risk of ASD and ADHD with antidepressant exposure are heterogeneous in their design. Classical comparisons between exposed and unexposed women during pregnancy are at high risk of residual confounding. Alternative comparisons and sibling designs may aid the interpretation of causality and their utility requires further evaluation, including understanding potential limitations of undertaking meta-analyses with such data. PMID- 29332607 TI - The role of T2*-weighted gradient echo in the diagnosis of tumefactive intrahepatic extramedullary hematopoiesis in myelodysplastic syndrome and diffuse hepatic iron overload: a case report and review of the literature. AB - BACKGROUND: Extramedullary hematopoiesis is the proliferation of hematopoietic cells outside bone marrow secondary to marrow hematopoiesis failure. Extramedullary hematopoiesis rarely presents as a mass-forming hepatic lesion; in this case, imaging-based differentiation from primary and metastatic hepatic neoplasms is difficult, often leading to biopsy for definitive diagnosis. We report a case of tumefactive hepatic extramedullary hematopoiesis in the setting of myelodysplastic syndrome with concurrent hepatic iron overload, and the role of T2*-weighted gradient-echo magnetic resonance imaging in differentiating extramedullary hematopoiesis from primary and metastatic hepatic lesions. To the best of our knowledge, T2*-weighted gradient-echo evaluation of extramedullary hematopoiesis in the setting of diffuse hepatic hemochromatosis has not been previously described. CASE PRESENTATION: A 52-year-old white man with myelodysplastic syndrome and marrow fibrosis was found to have a 4 cm hepatic lesion on ultrasound during workup for bone marrow transplantation. Magnetic resonance imaging revealed diffuse hepatic iron overload and non-visualization of the lesion on T2* gradient-echo sequence suggesting the presence of iron deposition within the lesion similar to that in background hepatic parenchyma. Subsequent ultrasound-guided biopsy of the lesion revealed extramedullary hematopoiesis. Six months later, while still being evaluated for bone marrow transplant, our patient was found to have poor pulmonary function tests. Follow up computed tomography angiogram showed a mass within his right main pulmonary artery. Bronchoscopic biopsy of this mass once again revealed extramedullary hematopoiesis. He received radiation therapy to his chest. However, 2 weeks later, he developed mediastinal hematoma and died shortly afterward, secondary to respiratory arrest. CONCLUSIONS: Mass-forming extramedullary hematopoiesis is rare; however, our report emphasizes that it needs to be considered in the initial differential diagnosis of hepatic lesions arising in the setting of bone marrow disorders. We also show that in the setting of diffuse hepatic iron overload, tumefactive extramedullary hematopoiesis appeared isointense to background liver on T2* gradient-echo sequence, while adenoma, hepatoma, and hepatic metastasis appear hyperintense. Thus, T2*-weighted gradient-echo sequence may have a potential role in the imaging diagnosis of mass-forming hepatic extramedullary hematopoiesis arising in the setting of diffuse iron overload. PMID- 29332606 TI - Tricuspid flow and regurgitation in congenital heart disease and pulmonary hypertension: comparison of 4D flow cardiovascular magnetic resonance and echocardiography. AB - BACKGROUND: Tricuspid valve (TV) regurgitation (TR) is a common complication of pulmonary hypertension and right-sided congenital heart disease, associated with increased morbidity and mortality. Estimation of TR severity by echocardiography and conventional cardiovasvular magnetic resonance (CMR) is not well validated and has high variability. 4D velocity-encoded (4D-flow) CMR was used to measure tricuspid flow in patients with complex right ventricular (RV) geometry and varying degrees of TR. The aims of the present study were: 1) to assess accuracy of 4D-flow CMR across the TV by comparing 4D-flow CMR derived TV effective flow to 2D-flow derived effective flow across the pulmonary valve (PV); 2) to assess TV 4D-flow CMR reproducibility, and 3) to compare TR grade by 4D-flow CMR to TR grade by echocardiography. METHODS: TR was assessed by both 4D-flow CMR and echocardiography in 21 healthy subjects (41.2 +/- 10.5 yrs., female 7 (33%)) and 67 RV pressure-load patients (42.7 +/- 17.0 yrs., female 32 (48%)). The CMR protocol included 4D-flow CMR measurement across the TV, 2D-flow measurement across the PV and conventional planimetric measurements. TR grading on echocardiographic images was performed based on the international recommendations. Bland-Altman analysis and intra-class correlation coefficients (ICC) were used to asses correlations and agreement. RESULTS: TV effective flow measured by 4D-flow CMR showed good correlation and agreement with PV effective flow measured by 2D-flow CMR with ICC = 0.899 (p < 0.001) and mean difference of 1.79 ml [limits of agreement -20.39 to 16.81] (p = 0.084). Intra-observer agreement for effective flow (ICC = 0.981; mean difference - 1.51 ml [-12.88 to 9.86]) and regurgitant fraction (ICC = 0.910; mean difference 1.08% [-7.90; 10.06]) was good. Inter-observer agreement for effective flow (ICC = 0.935; mean difference 2.12 ml [-15.24 to 19.48]) and regurgitant fraction (ICC = 0.968; mean difference 1.10% [-7.96 to 5.76]) were comparable. In 25/65 (38.5%) TR grade differed by at least 1 grade using 4D-flow CMR compared to echocardiography. CONCLUSION: TV effective flow derived from 4D-flow CMR showed excellent correlation to PV effective flow derived from 2D-flow CMR, and was reproducible to measure TV flow and regurgitation. Twenty-five out of 65 patients (38.5%) were classified differently by at least one TR grade using 4D-flow CMR compared to echocardiography. PMID- 29332608 TI - Concealed complete response in melanoma patients under therapy with immune checkpoint inhibitors: two case reports. AB - BACKGROUND: The assessment of tumor size by RECIST using CT scans and MRIs is considered to be standard of care for staging cancer patients. Despite radiologic evidence of widespread disease, we document for the first time that patients were completely free of viable tumor. CASE PRESENTATION: Two patients with metastatic melanoma were treated with immune checkpoint inhibitors (ipilimumab/ nivolumab) and progressive metastases were detected on CT-scans performed shortly before histologic examinations. In both patients histologic assessment revealed a complete response with necrotic and scarred lesions free of tumor. One of the patients had started immunotherapy 20 months before with an initial partial response. CONCLUSIONS: This phenomenon of a concealed complete response can lead to overtreatment or unnecessary change in treatment. Thus, it is essential to raise awareness for it. Correct identification of responders to immune checkpoint inhibitor therapy is crucial to spare patients immune-mediated side effects and unnecessary as well as expensive treatment. Regression of metastases without decline in size, in these cases manifesting as complete responses, are probably more common than expected and identified to date. Until such responses can be readily identified by new imaging techniques, we recommend liberal biopsies for histologic assessment of progressive metastases in patients during and/or after immune checkpoint inhibitor therapy. PMID- 29332610 TI - Improvements in the conception rate, milk composition and embryo quality of rabbit does after dietary enrichment with n-3 polyunsaturated fatty acids. AB - This work attempts to confirm the effect of an enriched diet with n-3 polyunsaturated fatty acids (PUFA) trying to mitigate the reproductive performances issues such as low conception rate of primiparous rabbits. A total of 127 does were fed ad libitum throughout their two first cycles with two diets with different fat sources: mixed fat in the control and salmon oil in the enriched one, with 3.19 g/100 g (n=63 does) and 28.77 g/100 g (n=64 does) of n-3 of the total fatty acid, respectively. Feed intake was similar between groups (P>0.05). Plasma progesterone concentration was higher in the enriched females than in control ones at 7 (30.9+/-2.18 v. 23.9+/-2.30 ng/ml, respectively; P=0.029) and 14 (38.7+/-2.18 v. 28.2+/-2.30 ng/ml, respectively; P=0.001) days of first gestation. Considering both cycles, reproductive parameters of mothers (fertility, duration of gestation and prolificacy) and litter parameters (weight at parturition and weaning, mortality and average daily gain (ADG) of kits during lactation) were similar in both groups. However, individual measurements of neonates of enriched group improved 5.87%, 7.10% and 18.01% (P0.05), but embryo apoptosis rate was higher in control group than in enriched one (31.1+/-4.56% v. 17.1+/-3.87%, respectively; P<0.05). In conclusion, dietary PUFA enrichment from the rearing and throughout two productive cycles improved plasma progesterone during pregnancy, fertility, milk fatty acid profile and neonates development of primiparous supporting the beneficial effect of n-3 PUFA supplementation in rabbit does. PMID- 29332609 TI - Investigation of neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio and mean platelet volume in patients with tinnitus. AB - OBJECTIVE: This study aimed to evaluate patients with tinnitus in terms of mean platelet volume and platelet distribution width, and to explore neutrophil-to lymphocyte ratio and platelet-to-lymphocyte ratio, recently reported in the literature as being possible inflammation markers. METHODS: This study comprised 64 tinnitus patients and 64 age-matched healthy controls. Statistical significance level was accepted as p < 0.05. RESULTS: Mean platelet volume (t = 3.245, p = 0.002) and platelet distribution width (Z = 3.945, p < 0.001) were significantly higher in the patient group than the control group. CONCLUSION: The results suggest that a prothrombotic condition might play a role in the pathophysiology of tinnitus. PMID- 29332611 TI - Effect of rubber mats and perforation in the lying area on claw and limb lesions of fattening pigs. AB - Claw and leg lesions are frequently observed in finishing pigs and are likely to compromise their welfare. Providing softer than the usual concrete flooring may reduce both the frequency and severity of these lesions. Therefore, this study evaluated the influence of rubber mats and floor perforation in the lying area on claw and leg health of finishing pigs. A total of 240 Swiss Large White finishing pigs from on average 24.9 kg until 102.3 kg were used in four batches, with six groups of 10 animals per batch. The six experimental pens initially measured 1.85*3.55 m and were enlarged after 6 weeks to 1.85*5.25 m. In all pens, one third of the floor space was built as a defecating area consisting of a concrete floor with 15% perforation. The remaining two thirds of the pen were designed as a lying area whose floor quality differed between the pens. It either consisted of concrete elements or was covered with rubber mats, and perforation of both floor types was either 0%, 5% or 10%. All individuals were scored for claw and leg lesions at the beginning, in the middle and at the end of the 12-week fattening period. Lesions were summarised in scores based on the results of a principal component analysis. The influence on lesion scores of floor material, amount of perforation in the lying area, assessment time, and sex was examined using mixed-models. The total claw lesion score and the total limb lesion score as well as the claw angle increased from the beginning to the end of the fattening period. The values for both scores were slightly lower for animals kept on rubber mats compared with animals kept on concrete floor. There was no effect of the percentage of perforation on the examined outcome variables. In conclusion, our results indicate that rubber mats in the lying area bring about improvements in some aspects of claw and leg health in fattening pigs, whereas there is no effect of floor perforation. PMID- 29332612 TI - A Colonization Outbreak of Penicillin-Susceptible mecA-Positive Staphylococcus aureus in a Neonatal Ward of Children's Hospital. PMID- 29332613 TI - Should we tax unhealthy food and drink? AB - The global burden of obesity leads to significant morbidity and has major economic implications. In April 2018, Britain will join a growing number of countries attempting to tackle this using fiscal measures when the UK Soft Drinks Industry Levy is introduced. We review recent evidence from natural experiments of the impact of health-related food and drink taxes on consumer behaviour, and discuss the possible consequences of these approaches on purchases and health. We highlight some of the potential indirect consequences and the importance of robust prospective evaluation. PMID- 29332614 TI - Serelaxin for infant heart failure in congenital dilated cardiomyopathy. AB - Serelaxin has been studied in trials in adults with acute heart failure, but not in children. We report the first compassionate use of serelaxin in an infant. A 6 month-old girl with dilated cardiomyopathy was placed on extracorporeal membrane oxygenation following cardiac arrest unresponsive to medical treatment. Extracorporeal membrane oxygenation weaning failed despite maximal ino-dilator therapy. During the 48-hour infusion of serelaxin, we observed marked improvement in brain natriuretic peptide, left ventricular systolic function, and dilatation. The patient was successfully weaned from extracorporeal membrane oxygenation 24 hours later. The child died after a second extracorporeal membrane oxygenation run owing to sepsis. PMID- 29332615 TI - HIV EPIDEMIC HETEROGENEITY IN ZIMBABWE: EVIDENCE FROM SUCCESSIVE DEMOGRAPHIC AND HEALTH SURVEYS. AB - Zimbabwe has one of the worst HIV epidemics in the world. This study investigated data from two successive Zimbabwe Demographic and Health Surveys (ZDHS) conducted in 2005-06 and 2010-11. A random representative sample of 30,000 men aged 15-59 and women aged 15-49 was selected from the two surveys. The HIV prevalence was mapped with a flexible, coherent regression framework using a geo-additive semi parametric mixed model. HIV indicator prevalence maps were constructed at the regional level, and at the administrative level relevant for policy design, planning and decision-making. Substantial regional variation was found, not only in the burden of HIV, but also in its risk factors. The results suggest that responses/policies should vary at the regional level to ensure that the often diverse needs of populations across a country are met and incorporated into planning the HIV response. The use of geographically referenced data in two successive ZDHS provides crucial new insights into the spatial characteristics of the HIV epidemic in Zimbabwe. In particular, it highlights the HIV heterogeneity across Zimbabwe, with substantial regional variation, not only in the burden of HIV, but also in its risk factors. PMID- 29332616 TI - Addressing Children's Needs in Disasters: A Regional Pediatric Tabletop Exercise. AB - OBJECTIVE: Preparing and responding to the needs of children during public health emergencies continues to be challenging. The purpose of this study was to assess the usefulness of a tabletop exercise in initiating pediatric preparedness strategies and assessing the impact of the exercise on participants' understanding of and confidence in their roles during pediatric public health emergencies. METHODS: A tabletop exercise was developed to simulate a public health emergency scenario involving smallpox in a child, with subsequent spread to multiple states. During the exercise, participants discussed and developed communication, collaboration, and medical countermeasure strategies to enhance pediatric public health preparedness. Exercise evaluation was designed to assess participants' knowledge gained and level of confidence surrounding pediatric public health emergencies. RESULTS: In total, 22 participants identified over 100 communication and collaboration strategies to promote pediatric public health preparedness during the exercise and found that the most beneficial aspect during the exercise was the partnership between pediatricians and public health officials. Participants' knowledge and level of confidence surrounding a pediatric public health emergency increased after the exercise. CONCLUSION: The tabletop exercise was effective in identifying strategies to improve pediatric public health preparedness as well as enhancing participants' knowledge and confidence surrounding a potential pediatric public health emergency. (Disaster Med Public Health Preparedness. 2018;12:582-586). PMID- 29332617 TI - Decontamination of Extracorporeal Membrane Oxygenator Devices With an Intensified Disinfection Protocol: How Strict Is Too Strict? PMID- 29332618 TI - Online market research panel members as controls in case-control studies to investigate gastrointestinal disease outbreaks: early experiences and lessons learnt from the UK. AB - Established methods of recruiting population controls for case-control studies to investigate gastrointestinal disease outbreaks can be time consuming, resulting in delays in identifying the source or vehicle of infection. After an initial evaluation of using online market research panel members as controls in a case control study to investigate a Salmonella outbreak in 2013, this method was applied in four further studies in the UK between 2014 and 2016. We used data from all five studies and interviews with members of each outbreak control team and market research panel provider to review operational issues, evaluate risk of bias in this approach and consider methods to reduce confounding and bias. The investigators of each outbreak reported likely time and cost savings from using market research controls. There were systematic differences between case and control groups in some studies but no evidence that conclusions on the likely source or vehicle of infection were incorrect. Potential selection biases introduced by using this sampling frame and the low response rate are unclear. Methods that might reduce confounding and some bias should be balanced with concerns for overmatching. Further evaluation of this approach using comparisons with traditional methods and population-based exposure survey data is recommended. PMID- 29332620 TI - CJEM Debate Series: #Copayment - Medical insurance is for non-routine events. PMID- 29332621 TI - A New Chapter for CJEM. PMID- 29332619 TI - Clinical characteristics of non-tuberculous mycobacterial pulmonary infections in Bamako, Mali. AB - The global spread of non-tuberculous mycobacteria (NTM) may be due to HIV/AIDS and other environmental factors. The symptoms of NTM and tuberculosis (TB) disease are indistinguishable, but their treatments are different. Lack of research on the epidemiology of NTM infections has led to underestimation of its prevalence within TB endemic countries. This study was designed to determine the prevalence and clinical characteristics of pulmonary NTM in Bamako. A cross sectional study which include 439 suspected cases of pulmonary TB. From 2006 to 2013 a total of 332 (76%) were confirmed to have sputum culture positive for mycobacteria. The prevalence of NTM infection was 9.3% of our study population and 12.3% of culture positive patients. The seroprevalence of HIV in NTM group was 17.1%. Patients who weighed <55 kg and had TB symptoms other than cough were also significantly more likely to have disease due to NTM as compared to those with TB disease who were significantly more likely to have cough and weigh more than 55 kg (OR 0.05 (CI 0.02-0.13) and OR 0.32 (CI 0.11-0.93) respectively). NTM disease burden in Bamako was substantial and diagnostic algorithms for pulmonary disease in TB endemic countries should consider the impact of NTM. PMID- 29332623 TI - Gene expression and lymphocyte population at the fetal-maternal interface in sheep pregnancies established by somatic cell nuclear transfer. AB - The hypothesis of this study was that the leukocyte populations and expression levels of genes related to immune response, growth factors and apoptosis would be altered at the fetal-maternal interface in somatic cell nuclear transfer (SCNT) generated sheep pregnancies. Placental and endometrial samples from sheep pregnancies established by SCNT and natural breeding (control) were collected at 45 days and at term. Expression of genes related to growth factors, apoptosis and immune response was examined using quantitative reverse transcription polymerase chain reaction. Endometrial leukocyte populations and major histocompatibility class I (MHC-I) protein expression were examined by immunohistochemistry. At term we observed altered expression of genes related to apoptosis, growth factors and immune response in placental and endometrial tissue of SCNT pregnancies. In Day 45 pregnancies there was less-pronounced abnormal expression and only genes related to apoptosis and growth factors were abnormal in the placenta. Endometrial gene expression profiles were similar to age-matched controls. Placental MHC-I protein expression was similar in SCNT and controls at 45 days but increased in the SCNT at term. The altered gene expression at the fetal maternal interface likely contributes to the placental dysfunction and overgrowth observed in sheep SCNT pregnancies. PMID- 29332622 TI - In vivo and in vitro strategies to support caprine preantral follicle development after ovarian tissue vitrification. AB - The aim of the present study was to compare fresh and vitrified goat ovarian tissue after autotransplantation and in vitro culture. Adult goats were completely ovariectomised and each ovarian pair was sliced and distributed among six different treatment groups: fresh control, fresh transplant, fresh culture, vitrified control, vitrified transplant and vitrified culture. Follicular morphology, development, growth, density, revascularisation and hormone production were evaluated in all groups. Three antral follicles (two in the fresh transplant and one in the vitrified transplant groups) were observed on the surface of the graft 90 days after transplantation. The percentage of morphologically normal follicles was similar in the fresh control, fresh transplant and vitrified transplant groups. The percentage of developing (transition, primary and secondary) follicles was higher after in vitro culture of fresh or vitrified tissue. Transplantation resulted in a lower follicle density. Serum oestradiol concentrations remained constant during the entire transplantation period. In contrast, progesterone production decreased significantly. Expression of CD31 mRNA was lower in fresh culture. In conclusion, restoration of goat ovarian function can be successfully achieved following transplantation of both fresh and vitrified goat ovarian tissue. However, transplantation induced higher follicle loss than in vitro culture. PMID- 29332624 TI - [Not all exacerbations of chronic obstructive pulmonary disease should be treated with antibiotics]. AB - This review gives an update on antibiotic treatment of exacerbation of chronic obstructive pulmonary disease (COPD). Patients who do not need hospital admission and do not present with purulent sputum nor increased levels of C reactive protein/procalcitonin have no beneficial effect of antibiotic treatment. Those with severe COPD and increased sputum purulence should be treated with antibiotics, and first-line treatment should be amoxicillin, which is effective against the most common types of bacteria in COPD exacerbation. In patients with very severe COPD, amoxicillin/clavulanate could also be first-line treatment. PMID- 29332625 TI - Positive and negative affect mediate the bidirectional relationship between emotional processing and symptom severity and impact in irritable bowel syndrome. AB - INTRODUCTION: Individuals with IBS report higher levels of psychological distress compared to healthy controls. Distress has been associated with emotional processing difficulties but studies have not explored how the relationship between distress and emotional processing affects IBS. There is little research on the role of positive affect (PA) in IBS. AIMS: (a) If difficulties in self reported emotional processing are associated with affect and IBS measures (i.e., symptom severity, interference in life roles) (b1) If affect mediates the relationship between emotional processing and IBS measures (b2) Alternative model: if affect mediates the relationship between IBS and emotional processing (c) If PA moderates the relationship between distress and IBS. METHODS: Participants with a confirmed diagnosis of IBS (n=558) completed a questionnaire including measures of emotional processing (i.e., unhelpful beliefs about negative emotions, impoverished emotional experience), distress, PA, and IBS symptoms/interference. Mediation and moderation analyses were conducted with Maximum Likelihood Estimation. RESULTS: Distress and PA mediated or partly mediated the relationship between unhelpful beliefs about negative emotions/impoverished emotional experience and both IBS measures. The alternative models were also valid, suggesting a two-way relationship between emotional processing and IBS through affect. PA did not moderate the relationship between distress and IBS. CONCLUSION: Future interventions in IBS may benefit from not only targeting the management of physical symptoms and their daily impact but also aspects related to the experience of both negative and positive affect, and the acceptance and expression of negative emotions. Longitudinal studies are needed to confirm causal relationships within the explored models. PMID- 29332626 TI - Symptoms of depression and anxiety and 11-year all-cause mortality in men and women undergoing coronary artery bypass graft (CABG) surgery. AB - OBJECTIVES: To investigate the overall and the sex-specific association of preoperative and one-year post coronary artery bypass (CABG) surgery symptoms of depression and anxiety with 11-year all-cause mortality. METHODS: A multicenter prospective study including 1125 patients who completed the Hospital Anxiety and Depression Scale (HADS) before an elective CABG surgery, of whom 850 completed the HADS again at one-year follow-up. Information on all-cause mortality was obtained through the Israeli Ministry of Internal Affairs Register. Multivariable adjusted Cox regression models quantified the association of symptoms of depression and anxiety with all-cause mortality. RESULTS: Females comprised 22.7% of the cohort and were 5.5years older than males (70.0+/-9.3 and 64.4+/ 10.3years, respectively). Controlling for sociodemographic and lifestyle factors, illness severity and post-surgery participation in cardiac rehabilitation, there was little evidence of an association between preoperative symptoms of depression and mortality in males [adjusted hazard ratio (aHRmales)=1.03, 95% CI 0.99-1.07, p=0.21] or females (aHRfemales=1.01, 95% CI 0.95-1.08, p=0.7). One-year postoperative symptoms of depression were associated with mortality in both males (aHRmales=1.05, 95% CI 1.01-1.10, p=0.03) and females (aHRfemales=1.07, 95% CI 1.02-1.13, p=0.013). Preoperative symptoms of anxiety were unrelated to mortality overall, but among females postoperative symptoms of anxiety predicted 11-year mortality (aHRfemales=1.07, 95% CI 1.00-1.14, p=0.049). There was no HADS by sex interaction (p for interaction=0.12-0.99). CONCLUSIONS: Symptoms of depression one-year after surgery were positively related to mortality with little evidence for sex differences. These findings underscore the need for identification and treatment of psychiatric symptoms in patients undergoing CABG surgery. CLINICAL TRIAL REGISTRATION: ClinicalTrials.gov: NCT00356863. PMID- 29332627 TI - Pre-transplant history of mental health concerns, non-adherence, and post transplant outcomes in kidney transplant recipients. AB - OBJECTIVE: The association between pre-transplant mental health concerns and non adherence and post-transplant outcomes after kidney transplantation is not fully established. We examined the relationship between a pre-transplant history of mental health concerns and non-adherence and post-transplant outcomes among kidney transplant recipients. METHODS: In this retrospective single center cohort study of adult kidney transplant recipients (n=955) the associations between the history of mental health concerns or non-adherence and the time from kidney transplant to biopsy proven acute rejection; death-censored graft failure and total graft failure were examined using Cox proportional hazards models. RESULTS: Mean (SD) age was 51 (13) years, 61% were male and 27% had a history of diabetes. Twenty-two and 11% of patients had mental health concerns and non-adherence, respectively. Fifteen percent of the patients had acute rejection, 5.6% had death censored graft failure and 13.0% had total graft failure. The history of mental health concerns was not associated with acute rejection, death-censored graft failure or total graft failure. Patients with versus without a history of non adherence tended to have higher cumulative incidence of acute rejection (23.3% [95% CI: 16.1, 33.2] vs. 13.6% [95% CI: 11.4, 16.2]) and death-censored graft failure (15.0% [95% CI: 6.9, 30.8] vs. 6.4% [95% CI: 4.7, 8.7]) (log rank p=0.052 and p=0.086, respectively). These trends were not significant after multivariable adjustment. CONCLUSION: In summary, a history of pre-transplant mental health concerns or non-adherence is not associated with adverse outcomes in patients who completed transplant workup and received a kidney transplant. PMID- 29332628 TI - Socioeconomic factors in coronary artery disease - Results from the SPIRR-CAD study. AB - : Low socio-economic status (SES) has been associated with an increased coronary risk in Western countries. All stress experiences are more pronounced in low SES patients with stress emanating from problems with family, job, or money. The SPIRR-CAD study offered an excellent opportunity to examine these risk factors in German speaking mildly and medium depressed patients. In the SPIRR CAD study, a German multi centre randomized clinical trial of 450 male and 120 female coronary patients, we examined the standard and psychosocial risk factor profiles in relation to SES, as assessed by educational level. All differences in risk factors between low and high SES were in the inverse direction. Of standard risk factors, only smoking was socially graded and more common in low SES. Of psychosocial factors and emotions, exhaustion showed the strongest and most consistent inverse social gradient, but also anger, anxiety and depression were socially graded. The findings suggest that in German patients, as in other national groups, social gradients in CHD risk are considerable. They can be ascribed to both psychosocial and to standard risk factors. In the present two years follow-up, the prospective significance of psychological and social risk factors was analyzed showing that emotional factors played an important role, in that low and high SES patients differed in the expected direction. However, the differences were not statistically significant and therefore firm conclusions from follow up were not possible. TRIAL REGISTRATION: ISRCTN 76240576; NCT00705965. PMID- 29332629 TI - Psychobiological stress in vital exhaustion. Findings from the Men Stress 40+ study. AB - OBJECTIVE: Despite the increased risk for cardiovascular morbidity associated with vital exhaustion (VE), the underlying pathophysiological mechanisms remain unclear. Allostatic load may constitute the missing link between VE and cardiovascular diseases. The aim of the present study was to investigate whether men with different degrees of VE would differ in terms of allostatic load, chronic stress, and social support. METHODS: The Men Stress 40+ study sample consisted of N=121 apparently healthy men aged 40 to 75years. The following allostatic load markers were aggregated to create a cumulative index of biological stress: salivary cortisol, salivary dehydroepiandrosterone sulfate (DHEA-S), waist-to-hip-ratio, systolic and diastolic blood pressure. Long-term cortisol and DHEA were additionally measured in hair. Chronic stress and social support were assessed via validated questionnaires. Groups of mildly, substantially, and severely exhausted men were compared using one-way ANOVAs with appropriate post-hoc tests. RESULTS: Men who reported mild or severe levels of vital exhaustion had the highest scores on the cumulative index of biological stress. Hair cortisol was unrelated to vital exhaustion; hair DHEA was highest in men with substantial levels of exhaustion. Men with mild exhaustion reported the lowest levels of chronic stress, while men with severe exhaustion reported the lowest levels of social support. CONCLUSIONS: Signs of allostatic load are detectable in vitally exhausted men at a stage where no major cardiovascular consequences have yet ensued. PMID- 29332630 TI - Effects of a program of cognitive-behavioural group therapy, vestibular rehabilitation, and psychoeducational explanations on patients with dizziness and no quantified balance deficit, compared to patients with dizziness and a quantified balance deficit. AB - BACKGROUND: We examined whether a program combining cognitive-behavioural therapy (CBT), vestibular rehabilitation (VR) and psychoeducation is equally effective in improving psychometric measures in patients with dizziness independent of a balance deficit. Measures of patients with dizziness only (DO) were compared to those of patients also having a quantified balance deficit (QBD). METHODS: 32 patients (23 female, 9 male) with persistent dizziness were analysed as 2 groups based on stance and gait balance control: those with QBD (pathological balance) or DO (normal balance). Dizziness Handicap Inventory (DHI) and Brief Symptom Inventory (BSI) questionnaires were used pre- and post-therapy to assess psychometric measures. Patients then received the same combination therapy in a group setting. RESULTS: The QBD group mean age was 60.6, SD 8.3, and DO group mean age 44.8, SD 12.1, years. Pre-therapy, questionnaire scores were pathological but not different between groups. Balance improved significantly for the QBD group (p=0.003) but not for the DO group. DHI and BSI scores improved significantly in the DO group (0.001=2.47), but not in Europe (aOR=1.26, 95%CI=0.90-1.77). Analyses with self-reports of diagnosed asthma yielded similar, albeit weaker, associations (e.g. OR for the overall sample=1.63, 95%CI=1.38-1.92). We also combined asthma and wheezing into a single variable (reference group: no asthma diagnosis/no wheezing). We observed that in particular reports of wheezing were associated with impaired social functioning regardless of whether a concomitant asthma diagnosis was reported (OR=2.19, 95%CI=1.81-2.64) or not (OR=2.50, 95%CI=2.09-2.99). CONCLUSION: Self-reports of wheezing and of diagnosed asthma are associated with impaired social functioning among adults in Africa, South America and Asia, but less so in Europe. These relationships are mainly driven by the experience of respiratory symptoms (i.e. wheezing). Our findings may partly be explained by regional variations in asthma control. Further research should elucidate the determinants and mechanisms of asthma-related impaired social functioning. PMID- 29332635 TI - Fear of hypoglycemia in patients with type 2 diabetes: The role of interoceptive accuracy and prior episodes of hypoglycemia. AB - OBJECTIVE: Fear of hypoglycemia (FoH) is a limiting factor for diabetes self management and can have detrimental effects on quality of life. However, relatively little is known about its underlying mechanisms. In line with findings on patients with anxiety disorders, we hypothesized that interoceptive accuracy (IA) might be positively linked to FoH in patients with type 2 diabetes (T2DM). METHODS: 133 patients with T2DM were screened according to the extreme quartiles of the Hypoglycemia Fear Survey worry subscale (HFS-W). Overall, 66 participants (HFS-W<4; HFS-W>17) were included in the present study. Participants completed questionnaires on sociodemographic and diabetes-related measures. Accuracy of heartbeat perception was assessed using the mental tracking task. RESULTS: Contrary to expectations, IA did not differ significantly between patients with low and high FoH. A linear regression analysis demonstrated that the experience of mild hypoglycemia (beta=0.32, p<=0.01) and its interaction with IA (beta= 0.26, p=0.040) were significant predictors of FoH, indicating that low IA and a history of experiencing mild hypoglycemia are positively associated with FoH. CONCLUSION: Our findings suggest a positive association of low IA in combination with prior episodes of hypoglycemia and FoH in patients with T2DM. The results are in line with recent findings on IA in patients with chronic somatic symptom distress more generally and contribute to our understanding of the relations between interoception, body related fears, and physical symptom perception. PMID- 29332636 TI - Implementation of an electronic routine outcome monitoring at an inpatient unit for psychosomatic medicine. AB - BACKGROUND: Patient-reported outcomes (PROs) can be part of an electronic routine outcome monitoring (eROM). eROM can improve patient involvement, treatment outcomes and simplify scientific data assessment. Available studies on eROM focus on its evaluation only and lack a detailed description of the prior implementation procedure. OBJECTIVE: The aim was to implement an eROM assessment at a division of Psychosomatic Medicine and provide a detailed description of the implementation procedure. METHODS: According to the Replicating Effective Program concept the project consisted of 4 phases: pre-condition (1), pre-implementation (2), implementation (3) and maintenance and evolution (4) mainly focusing the description of the implementation procedure and a short evaluation. RESULTS: We describe the actions taken during the implementation procedure and steps which were taken to overcome identified barriers. All decisions were carried out based on the Participatory Action Research process. A core set consisting of sociodemographic and clinical data and a comprehensive questionnaire battery covering symptoms, functioning parameters and psychological constructs was implemented. In total 164 patients, took part in the eROM assessment from June 2015 to December 2016. The evaluation showed that eROM was appreciated by health care professionals (85.2%) and patients (70.2%) alike. The majority of patients (89.4%) and health-care professionals (85.7%) experienced no delays in daily clinical routine due to eROM. CONCLUSION: The detailed description of the implementation process can guide institutions planning to implement eROM into their daily clinical routine. Focusing scientific efforts on the implementation process is essential since this influences all further steps such as evaluation and acceptance. PMID- 29332637 TI - Pilot-RCT of an integrative group therapy for patients with refractory irritable bowel syndrome (ISRCTN02977330). AB - OBJECTIVE: Different forms of psychotherapeutic treatments have been proven effective in irritable bowel syndrome (IBS), but disorder-oriented and integrative concepts are still rare. Therefore, we implemented and evaluated an integrative group therapeutic concept within an interdisciplinary tertiary care clinic for functional gastrointestinal disorders (FGIDs). AIMS: present our integrative group concept, assess feasibility issues, and evaluate efficacy. METHODS: A pilot-RCT with a randomized controlled wait-listed group design was conducted. The treatment concept was a disorder-oriented multicomponent group therapy (12 90-min weekly sessions) integrating interactive psychoeducation, gut directed hypnotherapy, and open group phases. All patients received enhanced medical care and completed a short online diary as an active wait-listed control condition. INCLUSION CRITERIA: refractory IBS diagnosed as somatoform autonomic dysfunction of the lower gastrointestinal tract (SAD). PRIMARY OUTCOME: IBS symptom severity (IBS-SSS). RESULTS: Of 294 patients, 220 had IBS (ROME III), 144 were diagnosed as SAD (ICD-10), 51 were eligible regarding inclusion/exclusion criteria, and 30 consented to participate (group intervention: n=16, wait-listed control condition: n=14). Only 1 patient dropped out. Intention-to-treat-analysis with repeated-measures mixed ANOVA showed that the group intervention was not significantly superior to the wait-listed control condition. Nevertheless, the calculated effect size for the between-group difference in IBS-SSS at the end of treatment (post) was moderate (d=0.539). CONCLUSION: Our disorder-oriented integrative group intervention for IBS proved to be acceptable and feasible in an interdisciplinary tertiary care setting. There is promise in this intervention, but a larger RCT may be needed to investigate efficacy. PMID- 29332638 TI - The effect of exercise therapy on depressive and anxious symptoms in patients with ischemic heart disease: A systematic review. AB - OBJECTIVE: Depressive and anxiety symptoms are associated with Ischemic Heart Disease (IHD). Exercise interventions might improve both depressive and anxiety symptoms, but an overview of the evidence is lacking. Therefore, we systematically reviewed the existing literature on the effectiveness of exercise therapy to reduce depression and anxiety symptoms specifically in patients with IHD. METHODS: MEDLINE, EMBASE, PsycINFO and the Cochrane Central Register of Controlled Trials were searched until January 2016. The effectiveness of exercise was assessed within two groups: a) patients selected for study with severe depression or anxiety; and b) studies that did not exclusively targeted patients with increased levels of depression or anxiety. Secondary outcomes were mortality, cardiac events, re-hospitalizations and cardiovascular risk factors. RESULTS: We included fourteen studies. Clinical and methodological heterogeneity precluded meta-analysis. Three studies specifically included patients with high levels of depression or anxiety and eleven studies selected patients with unclear levels of depression or anxiety. Some RCTs showed that exercise was effective in lowering severe depressive symptoms (short and long term follow-up), but for the group with unclear depressive symptoms the results were non-conclusive. In the group with elevated anxiety symptoms, exercise had a positive effect on the short term follow-up. In the group with unclear anxiety symptoms the results were inconsistent (short and long term follow-up). No differences were found regarding the secondary outcomes. CONCLUSIONS: There is a general paucity of data on the effect of exercise, precluding firm conclusions about the effectiveness of exercise for depressive and anxiety symptoms in IHD patients. PMID- 29332639 TI - Genetic and environmental influences to low back pain and symptoms of depression and anxiety: A population-based twin study. AB - BACKGROUND: People suffering from chronic pain are more likely to experience symptoms of depression and anxiety. However, the mechanisms underlying this relationship remain largely unknown. In light of the moderate to large effects of genetic factors on chronic pain and depression and anxiety, we aimed to estimate the relative contribution of genetic and environmental factors to the relationship between these traits. METHODS: Using data from 2139 participants in the Murcia Twin Registry, we employed a bivariate analysis and structural equation modeling to estimate the relative influences of genetics and the environment on the covariation between low back pain and symptoms of depression and anxiety. RESULTS: We have obtained heritability estimates of 0.26 (95% Confidence Interval (CI) 0.11, 0.41) for chronic low back pain and 0.45 (95% CI 0.29, 0.50) for symptoms of depression and anxiety. The phenotypic, genetic, and unique environment correlations in the bivariate analytical model were, respectively, rph=0.26 (95% CI 0.19, 0.33); rG=0.47 (95% CI 0.42, 0.70); rE=0.14 (95% CI -0.04, 0.25). The percentage of covariance between low back pain and symptoms of depression and anxiety attributable to additive genetic factors was 63.6%, and to unique environment 36.4%. CONCLUSIONS: Our findings confirm the relationship between low back pain and symptoms of depression and anxiety in a non-clinical sample. Shared genetic factors affect significantly the covariation between these conditions, supporting the role of common biological and physiological pathways. PMID- 29332640 TI - Cognitive impairment in patients with psoriasis: A matched case-control study. AB - BACKGROUND: In the past decade, a few studies have suggested that psoriasis could be associated with the presence of mild cognitive deficits. OBJECTIVES: The aim of the present matched case-control study was to investigate several cognitive domains (executive functions, verbal memory, attention, and language) in a sample of outpatients with psoriasis. We also investigated whether cognitive impairment was associated with poor health-related quality of life (HRQoL) in patients with psoriasis. METHODS: Fifty adult outpatients and 50 age- and sex-matched healthy controls were administered a battery of neuropsychological tests investigating major cognitive domains, psychopathology (anxiety and depression), alexithymia, and HRQoL. RESULTS: At the bivariate level, psoriasis patients (compared to healthy controls) performed worse on most of the neuropsychological tests, and they also reported more anxiety and depressive symptoms, higher scores for alexithymia, and worse physical and mental health. At the multivariate level, cognitive performance was independently associated with psoriasis even when controlling for psychopathology and alexithymia. CONCLUSIONS: Patients with psoriasis show impaired cognitive performance, high levels of anxiety and depression, and impaired quality of life. Based on the current results, clinicians should assess the presence of psychological symptoms in their patients and evaluate whether the presence of cognitive deficits is limiting the patients' ability to cope with the disease. PMID- 29332641 TI - Epidemiological paradigm: Tuberculosis in HIV, diabetes, and smoking in North East India: An impact greater than sum of its parts. PMID- 29332642 TI - Current Affairs, Future Perspectives of Tuberculosis and Antitubercular Agents. AB - Tuberculosis (TB) is the major threat for humans from past several decades. Even after advent of several antitubercular drugs, researchers are still struggling for the mycobacterial infections in humans are TB and leprosy. Chronic infections caused by Mycobacterium tuberculosis and Mycobacterium leprae. A particular problem with both of these organisms is that they can survive inside macrophages after phagocytosis, unless these cells are activated by cytokines produced by T lymphocytes, because of this researchers are not yet succeeded in finding effective treatment on TB. In recent years TB has spread globally and became the major issue for world healthcare organizations. Some compounds like benzothiazinones shown promising activity against mycobacterium, few compounds are in pipeline which may exhibit improved pharmacological effect. Decaprenylphosphoryl-d-ribose 2'-epimerase (DprE1) is the vulnerable target for antitubercular drug discovery. DprE1 is a flavoprotein that along with decaprenylphosphoryl-2-keto-ribose reductase catalyses epimerization of decaprenylphosphoryl-d-ribose to decaprenylphosphoryl-d-arabinose through an intermediate formation of decaprenylphosphoryl-2-keto-ribose. This conversion makes DprE1 a potential drug target. Further research requires to tackle the biggest hurdles in Tuberculosis treatment, i.e. multi drug and extensively drug resistance. PMID- 29332643 TI - Role of laparoscopy in diagnosing genital tuberculosis in suspected women: A cross-sectional study from a tertiary care hospital in Northern India. AB - This study was included 60 women with suspected genital tuberculosis, attending outpatient department of a tertiary care hospital. The aim was to evaluate the role and accuracy of laparoscopy in the diagnosis of genital tuberculosis. The patients were investigated for tuberculosis with Erythrocyte Sedimentation Rate, Montoux, chest X-ray, serum ELISA, CA125, ultrasonography, endometrial biopsy and laparoscopic biopsy. Culture or histopathology was taken as a gold standard for confirming the cases of genital tuberculosis. 30 patients were confirmed as positive. Comparison was made between the various diagnostic modalities. Baseline investigations like complete blood count, differential leukocyte count, ESR, Montoux, and some special tests like CA125 and serum ELISA were helpful in supporting the diagnosis in only some patients. The sensitivity, specificity, positive and negative predictive value of endometrial biopsy in diagnosing GT was 6.6%, 100%, 100% and 51.7% respectively. Laparoscopic gross visualization alone, staining, culture and histology were able to detect 86.6%, 33.3%, 50% and 63.3% of cases respectively. Many patients would have been missed if laparoscopy was not performed. It helps in macroscopic visualization of pelvic cavity and obtaining biopsies for ZN staining, culture and histopathology. This increases the pickup rate of positive cases and helps in confirmation of the diagnosis. PMID- 29332645 TI - Plasma levels of Rifampicin and Pyrazinamide with pre and post meal administration in tuberculosis patients. AB - CONTEXT: Various factors affect plasma concentrations of antitubercular drugs in different populations so dosing schedule should be adjusted after therapeutic drug monitoring. AIMS: To study variability in plasma concentrations of Rifampicin and Pyrazinamide with pre and post-meal administration of drugs in tuberculosis patients. METHODS AND MATERIAL: 52 patients of pulmonary tuberculosis, divided in to two groups, pre and post-meal through systemic randomization. After taking pre-dose sample, drugs were administered according to the group. Samples were withdrawn at 2, 4, 6, and 10h after drug administration. Analysis of samples was done using HPLC. RESULTS: Mean+/-1SD of Cmax of Rifampicin was 7.75+/-2.82MUg/ml, mean+/-1SD of AUC0-10 was 42.17+/-17.25MUgh/ml, adjusted Tmax was 4.25h. In pre-meal samples, the corresponding values were 7.75+/-2.88MUg/ml, 42.83+/-18.47MUgh/ml, 3.76h and in post-meal samples 8.03+/ 2.30MUg/ml, 41.56+/-16.46MUgh/ml and 4.75h. Mean+/-1SD of Cmax levels of Pyrazinamide was 54.49+/-21.86MUg/ml, mean+/-1SD of AUC0-10 was 337.94+/ 124.28MUgh/ml and adjusted Tmax was 3.49h. In pre-meal samples the corresponding values were 52.00+/-19.13MUg/ml, 329.96+/-112.11MUgh/ml, 3.23h, and in post-meal samples 57.43+/-23.61MUg/ml, 345.58+/-136.99MUgh/ml, 3.54h. CONCLUSION: There is huge variability in the plasma levels of Rifampicin and Pyrazinamide in population of this sub-himalayan region. PMID- 29332644 TI - Role of serum adenosine deaminase in pulmonary tuberculosis. AB - BACKGROUND: Definitive laboratory diagnosis and confirmation of tuberculosis remains a major challenge because of lack of specificity and sensitivity of diagnostic methods especially in sputum smear negative tuberculosis. Many studies have proved the role of ADA in diagnosis of tuberculosis in effusion fluids and a decrease in ADA activity after treatment. This study was aimed to investigate the role of serum ADA level as an early diagnostic and prognostic marker for pulmonary tuberculosis (PTB). MATERIAL AND METHODS: This was a cohort study done on patients visiting the OPD Clinics of the department of Pulmonary Medicine at GMCH, Chandigarh. 50 sputum positive and 50 sputum negative tuberculosis patients and 100 controls were recruited. Serum ADA levels were measured at the start of treatment and again after two months of treatment. Its correlation with severity of disease was seen. RESULTS: Mean serum ADA (IU/L) was found to be 35.293+/ 30.941 in PTB patients and 11.819+/-8.023 in control groups and the difference was found to be highly significant (P<0.00). Mean ADA was 31.107+/-29.32 in sputum positive patients, 39.478+/-32.22 in sputum negative and 11.819+/-8.0235 in control groups. No statistically significant difference was observed amongst sputum positive and sputum negative patients. The levels decreased significantly after intensive phase of treatment. At the cut off values of 14.6IU/L, serum ADA had 78% sensitivity and 76% specificity (AUC=0.801, P value<0.00) to differentiate between PTB from healthy controls. CONCLUSION: Serum ADA levels may be used as a biomarker for diagnosis of PTB and to evaluate the response to treatment at follow up. PMID- 29332646 TI - Strategy and way forward for TB elimination. AB - India's National Strategic Plan (NSP) for TB Elimination 2017-25 looks ambitious in terms of targets of TB notification aiming to reach 35 lakh TB patients annually, i.e. double that of current status. Strategies and interventions designed under the Plan with patient centered approaches, with synergistic public private-patient partnership can make it possible to achieve real aim of reaching the unreached, by extending patient support systems and social protection to affected communities. In this review point, these strategies and commitments are summarized as future plan. PMID- 29332647 TI - Social support a key factor for adherence to multidrug-resistant tuberculosis treatment. AB - BACKGROUND: Multidrug-resistant tuberculosis (MDR-TB) is emerging as a major public health problem globally. Treatment success rates in MDR-TB across the globe are not encouraging as completing MDR-TB treatment successfully is challenging due to high proportion of lost to follow up. METHODS: Using qualitative methods and grounded theory approach, in-depth interviews were conducted with MDR-TB patients and treatment providers. The social cognitive framework was explored as a way to guide understanding of the factors affecting treatment adherence among MDR-TB patients. RESULTS: Multiple factors influenced patient's decision to adhere to MDR-TB treatment. Self-motivation, awareness about disease and treatment, counselling support, family support, nutritional support and social support were important drivers for successful treatment. Providers related that motivational counselling, nutritional support, family support and social support encouraged treatment adherence. CONCLUSION: To improve MDR-TB treatment adherence, a patient-centric approach should be considered at the programmatic level. There is a need to formulate strategy that includes motivational counselling, nutritional supplementation and social support mobilisation for treatment adherence. Participants suggested a Patient Support Group led treatment care model for better adherence and treatment success rates in MDR-TB treatment. PMID- 29332648 TI - Prevalence of chronic respiratory diseases from a rural area in Kerala, southern India. AB - BACKGROUND: Chronic lung diseases are one of the leading causes of morbidity in developing countries. A community based survey was undertaken with an objective to estimate the prevalence of chronic respiratory diseases and to describe the profile of people with CRDs in the rural area Nilamel health block in Kollam district, Kerala, southern India. METHODS: A household information sheet and a translated respiratory symptom questionnaire based on International Union against Tuberculosis and Lung Disease (IUATLD) bronchial symptoms questionnaire was administered to 12,556 people above 15 years, selected randomly from Nilamel health block. RESULTS: Prevalence of self reported asthma was 2.82% (95% CI 2.52 3.12) and that of chronic bronchitis was 6.19% (95% CI 5.76-6.62) while other CRDs which did not fit to either constitute 1.89%. Prevalence of asthma among males was 2.44% (95% CI 2.05-2.85) while that of females was 3.14% (95% CI 2.71 3.57). Chronic bronchitis prevalence was 6.73% and 5.67% among males and females respectively. CONCLUSION: Although India has devised a programme to combat cancer, diabetes, cardio vascular disease and stroke, none have been devised for chronic respiratory illness till date. Considering high prevalence and its contributions to morbidity and mortality, a comprehensive programme to tackle chronic respiratory diseases is needed. PMID- 29332649 TI - Isoniazid and rifampicin heteroresistant Mycobacterium tuberculosis isolated from tuberculous meningitis patients in India. AB - BACKGROUND: Heteroresistant Mycobacterium tuberculosis (mixture of susceptible and resistant subpopulations) is thought to be a preliminary stage to full resistance and timely detection, initiation of correct treatment is vital for successful anti tubercular therapy. The aim of this study was to detect multi drug resistant (MDR) and heteroresistant M. tuberculosis with the associated gene mutations from patients of tuberculous meningitis. METHODS: A total of 197 M. tuberculosis isolates from 478 patients of TBM were isolated from July 2012 to July 2015 and subjected to drug susceptibility testing (DST) by BACTEC MGIT and Genotype MTBDR line probe assay (LPA). Heteroresistance was defined as presence of both WT and mutant genes in LPA. RESULTS: Of 197 M. tuberculosis isolates, 11 (5.6%) were MDR, 23 (11.6%), 1 (0.5%) were mono resistant to isoniazid (INH) and rifampicin (RMP) respectively. Heteroresistance was detected in 8 (4%), 2 (1%) isolates to INH and RMP respectively. INH heteroresistant strains had WT bands with mutation band S315T1 whereas RMP heteroresistant strains had WT bands with mutation band S531L. CONCLUSION: The prevalence of MDR M. tuberculosis was 5.6% in TBM patients with the most common mutation being DeltaWT band with S315T1 for INH and DeltaWT band with S531T for RMP. MGIT DST was found to be more sensitive for detecting overall resistance in M. tuberculosis but inclusion of LPA not only reduced time for early initiation of appropriate treatment but also enabled detection of heteroresistance in 8 (4%), 2 (1%) isolates for INH and RMP respectively. PMID- 29332650 TI - Amplification of Hsp 65 gene and usage of restriction endonuclease for identification of non tuberculous rapid grower mycobacterium. AB - BACKGROUND: The rapid grower mycobacteria have emerged as significant group of human pathogen amongst the Runyon group IV organisms that are capable of causing infection in both the healthy and immunocompromised hosts. Study aimed to identification of species amongst rapid grower non tuberculous mycobacterial isolates by polymerase chain reaction - restriction enzyme analysis (PRA). Analysis and comparison of results with standard biochemical tests. METHODS: Rapid grower non tuberculous mycobacteria had been collected from liquid culture section during the study period. All isolates were identified by conventional biochemical tests. A 441bp fragment of hsp65 genes was amplified and digested by two restriction enzymes, BstEII and HaeIII. Digested products were analyzed using polyacrilamid gel electrophoresis (PAGE). RESULTS: During study, 121 rapid grower mycobacterial isolates were subjected for species identification. Isolates were obtained from pulmonary samples (72) and extrapulmonary samples (49). In the PRA test 8 different types of rapid grower mycobacteria were identified after analyzing the fragments generated through restriction enzymes. Mycobacterium chelonae (57/121) was the most common isolate in pulmonary and extrapulmonary samples. Mycobacterium fortuitum (42), Mycobacterium abscessus (11), Mycobacterium immunogen (06), Mycobacterium peregrinum (02), Mycobacterium smegmatis (01), Mycobacterium wolinskyi (01), Mycobacterium goodii (01) were identified as other species of rapid grower non tuberculous mycobacteria. CONCLUSION: PRA is a rapid and accurate system for the identification of species of non tuberculous mycobacteria. Results of PRA and biochemical tests are concordant up to 98%. PMID- 29332651 TI - Koch's postulates - Pitfalls and relevance in the 21st century. PMID- 29332652 TI - Initial airflow obstruction in new cases of pulmonary tuberculosis: Complication, comorbidity or missed? AB - : Tuberculosis (TB) may have a similar spirometry findings as a chronic obstructive pulmonary disease but the prevalence of TB-induced airflow obstruction (AO) is still unknown. OBJECTIVES: To measure frequency of AO in new TB cases at the beginning of treatment and to evaluate factors associated with obstructive abnormalities following TB diagnosis. MATERIALS AND METHODS: 317 patients that have no history of prior AO were recruited into the study with a median age of 39.0 years (IQR, 30.0-49.0). AO was defined using the FEV1/F(VC)=18 years, N = 1011. MEASUREMENTS: A cross sectional national online survey assessed diagnosed OSA, OSA symptoms, insomnia symptoms, sleep problems, excessive daytime sleepiness (Epworth Sleepiness Scale >=11), and physician-diagnosed health conditions (heart disease, diabetes, hypertension, reflux disease, lung disease, depression, anxiety/panic disorder, arthritis). Possible undiagnosed OSA was estimated using self-reported frequent loud snoring and witness apneas. International Criteria for Sleep Disorders-3 criteria identified insomnia symptoms. Logistic regression models adjusted for age, sex, obesity, and smoking determined correlates of sleep disorders. RESULTS: Comorbid sleep conditions were common, with 56% of participants demonstrating >=1 condition. Reporting >=1 mental health condition (depression and/or anxiety) was independently associated with diagnosed OSA (odds ratio [95% confidence interval {CI}]: 6.6 [3.2-13.6]), undiagnosed OSA (3.2 [1.8-5.8]), simple snoring (2.4 [1.2 4.5]), insomnia symptoms (4.3 [2.5-7.3]), and restless legs (1.9 [1.2-3.1]). Diagnosed OSA was significantly associated with >=1 cardiometabolic condition (2.9 [1.4-6.0]) and arthritis (3.6 [1.8-7.2]). ESS >=11 was associated with diagnosed (3.1 [1.4-6.8]) and undiagnosed OSA (6.2 [3.4-11.4]), insomnia symptoms (2.6 [1.4-4.9]), and restless legs (2.3 [1.4-4.0]), and these sleep conditions were also significantly associated with >=2 diagnosed medical problems. CONCLUSION: Strategies to facilitate the diagnosis and management of often comorbid sleep disorders in primary care are required to reduce the significant sleep-related disparities in cardiometabolic and mental health. PMID- 29332674 TI - Sleep apnea and pesticide exposure in a study of US farmers. AB - INTRODUCTION: Carbamate and organophosphate pesticides inhibit acetylcholinesterase, and poisoning leads to respiratory depression. Thus, involvement in sleep apnea is plausible, but no data exist at lower levels of exposure. Other pesticides could impact sleep apnea by different mechanisms but have not been studied. Our study examines the associations between pesticide exposure and sleep apnea among pesticide applicators from a US farming population. PARTICIPANTS AND METHODS: We analyzed data from 1569 male pesticide applicators, mostly farmers, from an asthma case-control study nested within the prospective Agricultural Health Study. On questionnaires, participants reported use of specific pesticides and physician diagnosis plus prescribed treatments for sleep apnea. We used multivariable logistic regression to estimate associations between ever use of 63 pesticides and sleep apnea (234 cases, 1335 noncases). RESULTS: The most notable association was for carbofuran, a carbamate (100 exposed cases, odds ratio 1.83, 95% confidence interval 1.34-2.51, P=.0002). Carbofuran use began before reported onset of sleep apnea in all cases. DISCUSSION: This study adds to the known adverse health outcomes of exposure to carbofuran, a pesticide canceled in the United States in 2009 for most agricultural purposes but persists in the environment and remains in use in some other countries. CONCLUSIONS: We conducted the first epidemiological study investigating the association of pesticide exposure and sleep apnea. Our results in a male agricultural population suggests that exposure to carbofuran is positively associated with sleep apnea. PMID- 29332675 TI - Sleep duration and incidence of type 2 diabetes: the Multiethnic Cohort. AB - OBJECTIVES: As an emerging risk factor for the rising incidence of type 2 diabetes, we examined sleep duration in relation to type 2 diabetes and several biomarkers. DESIGN: Prospective cohort recruited 1993-1996. SETTING: The Multiethnic Cohort in Hawaii and California. PARTICIPANTS: A cohort of 151,691 White, African American, Japanese American, Native Hawaiian, and Latino participants; 9695 cohort members had biomarker measurements. MEASUREMENTS: Sleep duration was self-reported at cohort entry. Diabetes status was obtained from 3 questionnaires and confirmed by 3 administrative data sources. Biomarkers were measured by standard assays 9.6+/-2.1 years after cohort entry. We estimated diabetes risk as a time-varying outcome using Cox regression adjusted for body mass index assessed at 3 time points and other known confounders and computed adjusted means of biomarkers by sleep hours. RESULTS: During 7.9+/-3.5 years of follow-up, 8487 new diabetes cases were diagnosed. Long sleep duration (>=9 hours), as compared with 7-8 hours, was significantly associated with higher incidence (hazard ratio, 1.12; 95% confidence interval 1.04-1.21), but the 4% elevated incidence for short sleep duration (<=6 hours) did not reach significance (95% confidence interval 0.99-1.09). After stratification, the associations appeared stronger in Japanese American than other ethnic groups and in participants without comorbidity. Hours of sleep were positively associated with C-reactive protein and triglycerides and inversely related to high-density lipoprotein cholesterol and adiponectin but not with leptin levels and homeostatic model assessment of insulin resistance. CONCLUSION: In this multiethnic population, the 12% higher diabetes risk for long sleep hours may be mediated through inflammation, a poor lipid profile, and lower adiponectin levels. PMID- 29332677 TI - Pilot study of sleep and meal timing effects, independent of sleep duration and food intake, on insulin sensitivity in healthy individuals. AB - This pilot study tested the independent and interactive effects of sleep and meal times, under identical sleep duration and feeding conditions, on insulin sensitivity (Si) in overweight adults. Participants underwent a 4-phase randomized crossover inpatient study differing in sleep times: normal (Ns: 0000 0800 hours) or late (Ls: 0330-1130 hours); and in meal times: normal (Nm: 1, 5, 11, and 12.5 hours after awakening) or late (Lm: 4.5, 8.5, 14.5, and 16 hours after awakening). An insulin-modified frequently sampled intravenous glucose tolerance test, at scheduled breakfast time, and a meal tolerance test, at scheduled lunch time, were performed to assess Si after 3 days in each condition. Six participants were enrolled (4 men, 2 women; mean age 25.1+/-[SD] 3.9 years, body mass index 29.2+/-2.7 kg/m2); only 1 failed to complete her last study phase. There were no effects of sleep and meal times or sleep * meal time interaction on Si (all P>.35), acute insulin response to intravenous glucose (all P>.20), and disposition index (all P>.60) after adjusting for sex and body mass index. Meal tolerance test glucose and insulin areas under the curve were lower during Nm (glucose P=.11; insulin P=.0088). There were a sleep * meal interaction and an effect of meal times on overnight glucose (P=.0040 and .012, respectively) and insulin (P=.0075 and .067, respectively). Sleep timing, without concomitant sleep restriction, does not adversely affect Si and glucose tolerance, but meal times may be relevant for health. Our results should be confirmed in a larger sample. PMID- 29332678 TI - Relationship of sleep pattern and snoring with chronic disease: findings from a nationwide population-based survey. AB - OBJECTIVES: To investigate the association of total sleep time and presence or absence of snoring with chronic disease among the Bangladeshi adult population. DESIGN: Cross-sectional survey. SETTING: Urban and rural Bangladesh. PARTICIPANTS: A total of 12,338 men and women aged >=35 years. MEASUREMENTS: Total sleep time was considered as the total hours of sleep in 24 hours. Furthermore, sleep time was categorized into <7, 7-9, and >9 hours according to National Sleep Foundation (2015) guidelines. Self-reported snoring history was captured and corroborated with their respective sleep partner/spouse in more than 80% cases. Registered physician-diagnosed current and/or previous cases of hypertension, diabetes, coronary heart disease, cancer, stroke, chronic obstructive pulmonary disease, and any other chronic conditions were counted. RESULTS: Overall prevalence of at least 1 chronic disease in our study population was around 18%: men (15.4%) and women (20.0%). Hypertension has the highest prevalence (overall: 12.7%, men: 12.2%, women: 15%) followed by diabetes (4.9%), coronary heart diseases (3.2%), stroke (1.8%), chronic obstructive pulmonary disease (0.9%), and cancer (any type: 0.1%). Sleep pattern and snoring are significantly associated with all individual chronic disease except cancer. Sociodemographic, behavioral, and lifestyle variables were adjusted, and inadequate total sleep time (<7 hours) and snoring (yes/no) showed significant association with chronic disease status (risk ratio = 1.11, 95% confidence interval 1.00-1.22 and risk ratio = 1.20, 95% confidence interval 1.11-1.29, respectively). CONCLUSION: Inadequate sleep and snoring are independently associated with chronic disease in Bangladeshi adult population and perhaps elsewhere. PMID- 29332680 TI - Sleep disorders + Pregnancy=Possibility of decreasing preterm births. PMID- 29332679 TI - Socioeconomic status in childhood predicts sleep continuity in adult Black and White men. AB - OBJECTIVES: Low socioeconomic status (SES) in childhood may be associated with sleep in adulthood. We evaluated the relationships between SES in childhood through adolescence and into adulthood and sleep in midlife men. DESIGN: Prospective assessment of SES in childhood and adulthood. SETTING: Population based study of 139 Black and 105 White men enrolled since age 7 and evaluated for sleep characteristics at age 32. MEASUREMENTS: Actigraphy and diary measures of sleep duration, continuity, and quality for 1 week. Their parents reported their SES (a combination of educational attainment and occupational status) annually when the boys were ages 7 to 16. We estimated SES intercept (age 7) and slope (age 7 to 16) using M-Plus and conducted linear regression analyses using those values to predict adult sleep measures, adjusting for covariates. RESULTS: Men who had lower SES families at age 7, smaller increases in SES from ages 7 to 16, and lower SES in adulthood had more minutes awake after sleep onset. White men with greater increases in SES from ages 7 to 16 had shorter sleep. CONCLUSIONS: SES in childhood and improvement in SES through adolescence are related to sleep continuity in midlife men. To our knowledge, this is the first report using prospectively measured SES in childhood in relation to adult sleep. PMID- 29332681 TI - Sleep duration, sleep quality, and sexual orientation: findings from the 2013 2015 National Health Interview Survey. AB - INTRODUCTION: This study identifies associations between sleep outcomes and sexual orientation net of sociodemographic and health-related characteristics, and produces estimates generalizable to the US adult population. PARTICIPANTS/METHODS: We used 2013-2015 National Health Interview Survey data (46,909 men; 56,080 women) to examine sleep duration and quality among straight, gay/lesbian, and bisexual US adults. Sleep duration was measured as meeting National Sleep Foundation age-specific recommendations for hours of sleep per day. Sleep quality was measured by 4 indicators: having trouble falling asleep, having trouble staying asleep, taking medication to help fall/stay asleep (all >=4 times in the past week), and having woken up not feeling well rested (>=4 days in the past week). RESULTS: In the adjusted models, there were no differences by sexual orientation in the likelihood of meeting National Sleep Foundation recommendations for sleep duration. For sleep quality, gay men were more likely to have trouble falling asleep, to use medication to help fall/stay asleep, and to wake up not feeling well rested relative to both straight and bisexual men. Gay/lesbian women were more likely to have trouble staying asleep and to use medication to help fall/stay asleep relative to straight women. Finally, bisexual women were more likely to have trouble falling and staying asleep relative to straight women. CONCLUSIONS: Sexual minority women and gay men report poorer sleep quality compared with their straight counterparts. PMID- 29332682 TI - A provisional tool for the measurement of sleep satisfaction. AB - OBJECTIVES: The goal of this project was to provisionally identify the basic elements of sleep satisfaction within the general population. METHODS: The National Sleep Foundation conducted a systematic literature review and identified 495 published articles evaluating potential indicators of sleep satisfaction. The National Sleep Foundation then convened an expert panel ("Panel"), provided full text articles and summaries, and used a modified RAND appropriateness method with three total rounds of voting to determine the appropriateness of indicators for sleep satisfaction. RESULTS: The literature review revealed no tools or measures of sleep satisfaction (not dissatisfaction) applied to the general population and directly associated with good health. Nonetheless, a variety of sleep factors were extracted from the extant sleep research literature. Panel members voted on these indicators: sleep environmental factors; and sleep initiation and maintenance parameters. Using these indicators, the Panel constructed provisional questions for measuring sleep satisfaction. CONCLUSIONS: The Panel determined that appropriate sleep satisfaction elements include how an individual feels (a) about their sleep, (b) immediately after their sleep, and (c) during the subsequent day. Additionally, appropriate environmental elements include (a) bedding comfort, (b) bedroom temperature, and (c) noise and light in the bedroom. How one feels with (a) the time it takes to fall asleep, (b) the ease with which one falls back to sleep after awakening during a sleep period, (c) the amount of sleep on weekdays and weekends, as well as how undisturbed one's sleep is also were determined to be appropriate contributors to sleep satisfaction. Finally, the Panel agreed that whether an individual desired to change anything about their sleep, is a relevant question. PMID- 29332683 TI - Insomnia in primary care-a study from India. AB - OBJECTIVES: To study the prevalence and clinical correlates of insomnia among a sample of primary care attendees, in the state of Kerala, India. DESIGN: Cross sectional survey. SETTING: Primary care. PARTICIPANTS: 7017 adult patients [18-60 years] attending 71 primary health centers selected by cluster random sampling. MEASUREMENTS: Patients were assessed for insomnia using the Insomnia Severity Index. In addition to self-reported socio-demographic and chronic medical illness details, structured instruments were used to assess for mental disorders, disability and life satisfaction. RESULTS: Subclinical insomnia and clinical insomnia were reported by 17.7% and 4.7% subjects, respectively. Subjects with subclinical and clinical insomnia when compared to those without insomnia had higher odds of having older age, female gender, urban background, lower education, chronic medical and mental disorders, greater disability and poor life satisfaction. Subjects with clinical insomnia when compared to the subclinical group had higher odds of having older age, urban background, lower education, mental disorders and greater disability. Among mental disorders, depressive disorder was correlated with both clinical and subclinical insomnia. CONCLUSIONS: Clinical and subclinical insomnia is common among primary care attendees and both are associated with significant morbidity. This study highlights that it is a major public health concern, albeit neglected, which needs to be dealt as a priority. PMID- 29332685 TI - Sleep patterns in children differ by ethnicity: cross-sectional and longitudinal analyses using actigraphy. AB - OBJECTIVES: To determine whether sleep patterns (duration, timing, efficiency) differ by ethnicity. DESIGN: Longitudinal study. SETTING: Dunedin, New Zealand. PARTICIPANTS: A total of 939 children (48% male) aged 4-12 years (572 European, 181 Maori, 111 Pacific, 75 Asian). MEASUREMENTS: All measurements were obtained at months 0, 12, and 24. Anthropometry was obtained using standard techniques, and parents completed questionnaires assessing demographics, dietary intake, and television habits of children. Sleep and physical activity were measured using Actigraph accelerometers over 1 week. Differences in sleep outcomes according to ethnicity were adjusted for demographics, weight status, and behavioral variables using mixed models. RESULTS: Pacific children had greater body mass index and were more likely to live in deprived areas than children from other ethnic groups (all P<.001), but few differences were observed in behavioral variables. Pacific Island children slept 16 (95% confidence interval, 7-25) minutes less per night than New Zealand European children, predominantly as a result of later bedtimes (29; 20-38 minutes). By contrast, sleep efficiency did not differ by ethnicity or over time (all P>=.118). Maori children did not show the same relative deficits in sleep, displaying similar results to European children. Sleep duration decreased by 8 minutes (95% confidence interval, 6-10) a night each year over 2 years, and change over time did not differ by ethnicity (all P>=.165). CONCLUSIONS: From a young age, Pacific children had poorer sleep patterns than European children, and these patterns were maintained over 2 years. PMID- 29332684 TI - Racial/ethnic sleep disparities in US school-aged children and adolescents: a review of the literature. AB - Sleep is essential for optimal health, well-being, and cognitive functioning, and yet nationwide, youth are not obtaining consistent, adequate, or high-quality sleep. In fact, more than two-thirds of US adolescents are sleeping less than 8 hours nightly on school nights. Racial and ethnic minority children and adolescents are at an increased risk of having shorter sleep duration and poorer sleep quality than their white peers. In this review, we critically examined and compared results from 23 studies that have investigated racial/ethnic sleep disparities in American school-aged children and adolescents ages 6-19 years. We found that White youth generally had more sufficient sleep than minority youth, Hispanics had more than Blacks, and there was inconclusive evidence for Asians and other minorities. Recommendations for researchers include the following: (1) explore underlying causes of the disparities of these subpopulations, with a particular interest in identifying modifiable causes; (2) examine factors that may be impacted by racial/ethnic sleep disparities; (3) use a multidimensional approach to measuring sleep disparities; and (4) examine how beliefs about sleep are patterned by race/ethnicity. Understanding sleep disparities can inform interventions, policies, and educational programs to minimize sleep disparities and their impact on health, psychological, and educational outcomes. PMID- 29332686 TI - No evidence for an epidemiological transition in sleep patterns among children: a 12-country study. AB - OBJECTIVE: To examine the relationships between socioeconomic status (SES; household income and parental education) and objectively measured sleep patterns (sleep duration, sleep efficiency, and bedtime) among children from around the world and explore how the relationships differ across country levels of human development. DESIGN: Multinational, cross-sectional study from sites in Australia, Brazil, Canada, China, Colombia, Finland, India, Kenya, Portugal, South Africa, the United Kingdom, and the United States. SETTING: The International Study of Childhood Obesity, Lifestyle and the Environment. PARTICIPANTS: A total of 6040 children aged 9-11 years. MEASUREMENTS: Sleep duration, sleep efficiency, and bedtime were monitored over 7 consecutive days using waist-worn accelerometers. Multilevel models were used to examine the relationships between sleep patterns and SES. RESULTS: In country-specific analyses, there were no significant linear trends for sleep duration and sleep efficiency based on income and education levels. There were significant linear trends in 4 countries for bedtime (Australia, United States, United Kingdom, and India), generally showing that children in the lowest income group had later bedtimes. Later bedtimes were associated with lowest level of parental education in only 2 countries (United Kingdom and India). Patterns of associations between sleep characteristics and SES were not different between boys and girls. CONCLUSIONS: Sleep patterns of children (especially sleep duration and efficiency) appear unrelated to SES in each of the 12 countries, with no differences across country levels of human development. The lack of evidence for an epidemiological transition in sleep patterns suggests that efforts to improve sleep hygiene of children should not be limited to any specific SES level. PMID- 29332688 TI - Corrigendum to "Interaction between bacterial cell membranes and nano-TiO2 revealed by two-dimensional FTIR correlation spectroscopy using bacterial ghost as a model cell envelope" [Water Res. 118 (2017) 104-113]. PMID- 29332687 TI - Similarities and differences in estimates of sleep duration by polysomnography, actigraphy, diary, and self-reported habitual sleep in a community sample. AB - OBJECTIVES: To compare estimates of sleep duration defined by polysomnography (PSG), actigraphy, daily diary, and retrospective questionnaire and to identify characteristics associated with differences between measures. DESIGN: Cross sectional. SETTING: Community sample. PARTICIPANTS: The sample consisted of 223 Black, White, and Asian middle- to older-aged men and women residing in the Pittsburgh, PA area. INTERVENTIONS: Not applicable. MEASUREMENTS: Two nights of in-home PSG; 9 nights of wrist actigraphy and sleep diaries; retrospective sleep questionnaires; and measures of sociodemographic, psychosocial, and adiposity characteristics. RESULTS: All measures of sleep duration differed significantly, with modest associations between PSG-assessed and retrospective questionnaire assessed sleep duration. Individuals estimated their habitual sleep duration about 20-30 minutes longer by questionnaire and their prospective sleep diaries compared with both PSG- and actigraphy-assessed sleep duration. Persons reporting higher hostility had smaller associations between PSG-assessed sleep duration and other methods compared with those with lower hostility; those reporting more depressive symptoms and poorer overall health had smaller associations between actigraphy-assessed sleep duration and questionnaire and diary measures. Apnea hypopnea index was not related to differences among estimates of sleep duration. CONCLUSIONS: PSG, actigraphy, diary, and retrospective questionnaire assessments yield different estimates of sleep duration. Hostility, depressive symptoms, and perceptions of poor health were associated with the magnitude of differences among some estimates. These findings may be useful in understanding the health consequences of short or long self-reported sleep duration and for guiding investigator decisions about choices of measures in specific populations. PMID- 29332690 TI - Editorial. PMID- 29332689 TI - Corrigendum to "Pesticides drive risk in wastewater-impacted streams during low flow conditions " [Water Res. 110 (2017) 366-377]. PMID- 29332691 TI - Ink dating, part I: Statistical distribution of selected ageing parameters in a ballpoint inks reference population. AB - The development of ink dating methods requires an important amount of work in order to be reliably applicable in practice. Major tasks include the definition of ageing parameters to monitor ink ageing. An adequate parameter should ideally fulfil the following criteria: it should evolve as a function of time in a monotonic way, be measurable in a majority of ink entries, be as accurate and reproducible as possible, and finally it should not be influenced too much by transfer and storage conditions. This work aimed at evaluating the potential of seven ageing parameters for ink dating purposes: the phenoxyethanol quantity, relative peak areas (RPA), three solvent loss ratios (R%, R%*, NR%) and two solvent loss parameters (RNORM, NRNORM). These were calculated over approximately one year for 25 inks selected from a large database to represent different ageing behaviours. Ink entries were analysed using liquid extraction followed by GC/MS analysis. Results showed that natural ageing parameters (NR% and NRNORM) were not suitable ageing parameters for ink entries older than a few weeks. RPA used other compounds present in ink formulations in combination to PE in order to normalise the results. However, it presented particular difficulties as they could not be defined for all inks and were thus applicable only for 64% of the studied inks. Finally, the PE quantity, R% and RNORM allowed to follow the ageing of the selected inks over the whole time frame and were identified as the most promising. These were thus selected to test three different interpretation models in the second part of this article. The possibilities and limitations of ink dating methods will be discussed in a legal perspective. PMID- 29332692 TI - Dead weight: Validation of mass regression equations on experimentally burned skeletal remains to assess skeleton completeness. AB - In very fragmentary remains, the thorough inventory of skeletal elements is often impossible to accomplish. Mass has been used instead to assess the completeness of the skeleton. Two different mass-based methods of assessing skeleton completeness were tested on a sample of experimentally burned skeletons with the objective of determining which of them is more reliable. The first method was based on a simple comparison of the mass of each individual skeleton with previously published mass references. The second method was based on mass linear regressions from individual bones to estimate complete skeleton mass. The clavicle, humerus, femur, patella, metacarpal, metatarsal and tarsal bones were used. The sample was composed of 20 experimentally burned skeletons from 10 males and 10 females with ages-at-death between 68 and 90years old. Results demonstrated that the regression approach is more objective and more reliable than the reference comparison approach even though not all bones provided satisfactory estimations of the complete skeleton mass. The femur, humerus and patella provided the best performances among the individual bones. The estimations based on the latter had root mean squared errors (RMSE) smaller than 300g. Results demonstrated that the regression approach is quite promising although the patella was the only reasonable predictor expected to survive sufficiently intact to a burning event at high temperatures. The mass comparison approach has the advantage of not depending on the preservation of individual bones. Whenever bones are intact though, the application of mass regressions should be preferentially used because it is less subjective. PMID- 29332693 TI - Ink dating part II: Interpretation of results in a legal perspective. AB - The development of an ink dating method requires an important investment of resources in order to step from the monitoring of ink ageing on paper to the determination of the actual age of a questioned ink entry. This article aimed at developing and evaluating the potential of three interpretation models to date ink entries in a legal perspective: (1) the threshold model comparing analytical results to tabulated values in order to determine the maximal possible age of an ink entry, (2) the trend tests that focusing on the "ageing status" of an ink entry, and (3) the likelihood ratio calculation comparing the probabilities to observe the results under at least two alternative hypotheses. This is the first report showing ink dating interpretation results on a ballpoint be ink reference population. In the first part of this paper three ageing parameters were selected as promising from the population of 25 ink entries aged during 4 to 304days: the quantity of phenoxyethanol (PE), the difference between the PE quantities contained in a naturally aged sample and an artificially aged sample (RNORM) and the solvent loss ratio (R%). In the current part, each model was tested using the three selected ageing parameters. Results showed that threshold definition remains a simple model easily applicable in practice, but that the risk of false positive cannot be completely avoided without reducing significantly the feasibility of the ink dating approaches. The trend tests from the literature showed unreliable results and an alternative had to be developed yielding encouraging results. The likelihood ratio calculation introduced a degree of certainty to the ink dating conclusion in comparison to the threshold approach. The proposed model remains quite simple to apply in practice, but should be further developed in order to yield reliable results in practice. PMID- 29332694 TI - Score based procedures for the calculation of forensic likelihood ratios - Scores should take account of both similarity and typicality. AB - Score based procedures for the calculation of forensic likelihood ratios are popular across different branches of forensic science. They have two stages, first a function or model which takes measured features from known-source and questioned-source pairs as input and calculates scores as output, then a subsequent model which converts scores to likelihood ratios. We demonstrate that scores which are purely measures of similarity are not appropriate for calculating forensically interpretable likelihood ratios. In addition to taking account of similarity between the questioned-origin specimen and the known-origin sample, scores must also take account of the typicality of the questioned-origin specimen with respect to a sample of the relevant population specified by the defence hypothesis. We use Monte Carlo simulations to compare the output of three score based procedures with reference likelihood ratio values calculated directly from the fully specified Monte Carlo distributions. The three types of scores compared are: 1. non-anchored similarity-only scores; 2. non-anchored similarity and typicality scores; and 3. known-source anchored same-origin scores and questioned-source anchored different-origin scores. We also make a comparison with the performance of a procedure using a dichotomous "match"/"non-match" similarity score, and compare the performance of 1 and 2 on real data. PMID- 29332695 TI - Variation of delta2H, delta18O & delta13C in crude palm oil from different regions in Malaysia: Potential of stable isotope signatures as a key traceability parameter. AB - A total of 33 crude palm oil samples were randomly collected from different regions in Malaysia. Stable carbon isotopic composition (delta13C) was determined using Flash 2000 elemental analyzer while hydrogen and oxygen isotopic compositions (delta2H and delta18O) were analyzed by Thermo Finnigan TC/EA, wherein both instruments were coupled to an isotope ratio mass spectrometer. The bulk delta2H, delta18O and delta13C of the samples were analyzed by Hierarchical Cluster Analysis (HCA), Principal Component Analysis (PCA) and Orthogonal Partial Least Square-Discriminant Analysis (OPLS-DA). Unsupervised HCA and PCA methods have demonstrated that crude palm oil samples were grouped into clusters according to respective state. A predictive model was constructed by supervised OPLS-DA with good predictive power of 52.60%. Robustness of the predictive model was validated with overall accuracy of 71.43%. Blind test samples were correctly assigned to their respective cluster except for samples from southern region. delta18O was proposed as the promising discriminatory marker for discerning crude palm oil samples obtained from different regions. Stable isotopes profile was proven to be useful for origin traceability of crude palm oil samples at a narrower geographical area, i.e. based on regions in Malaysia. Predictive power and accuracy of the predictive model was expected to improve with the increase in sample size. Conclusively, the results in this study has fulfilled the main objective of this work where the simple approach of combining stable isotope analysis with chemometrics can be used to discriminate crude palm oil samples obtained from different regions in Malaysia. Overall, this study shows the feasibility of this approach to be used as a traceability assessment of crude palm oils. PMID- 29332696 TI - A comparison of plastic cable ties based on physical, chemical and stable isotopic measurements. AB - Plastic cable ties can be utilised in a range of serious criminal activities and a comparison of cable ties, or fragments, may form part of the physical evidence presented to a Court of law. This research assessed the potential value of evidence based on the analysis of plastic cable ties. Twenty packets of black coloured plastic cable ties (nominally 200mm*4.8mm) were purchased in pack sizes ranging from 25 to 100 individual cable ties (Brisbane, Australia, March 2015). Representative samples from each packet were visually examined, compared and tested to determine their physical dimensions, chemical compositions and stable isotopic compositions (delta2H, delta13C and delta15N). All of the individual cable ties from a given packet were found to be indistinguishable with respect to appearance, physical, chemical and isotopic measurements (within-batch variability). Individual cable ties were also found to be isotopically homogeneous with respect to hydrogen, carbon and nitrogen. All of the cable ties analysed were found to have very similar chemical compositions and to be manufactured predominantly from nylon 6,6. The elemental compositions of composite samples, prepared from each packet, were found to be highly variable and, as such, were of very limited value. Cable ties from ten of the twenty packets were uniquely characterised by physical appearance (between-batch variability). Physical measurements such as the width, thickness and tooth-count of the grip section did not provide additional discrimination. Cable ties from nineteen of the twenty packets were uniquely characterised by isotopic composition, based on delta2H and delta15N measurements. Samples from two packets of Crescent brand cable ties were found to be indistinguishable with respect to all of the tests applied in this study. These two packets were inadvertently purchased from the same retailer and had the same barcode and batch number. It was considered a reasonable assumption that these two packets originated from the same manufacturing batch. The authors reason that a likelihood ratio (that might be presented to a Court of law) can be derived from this type of discrete data based on a calculation of the possible combinations of distinguishable objects (unordered sampling with replacement) in a convenience sample collected from the background population. In this example, a database of 19 distinguishable objects can yield a likelihood ratio as high as 210, with a verbal equivalent of "moderately strong support" for a proposition that two cable ties have the same isotopic composition because they originate from the same batch rather than by random chance. PMID- 29332698 TI - Response to "A study of the perception of verbal expressions of the strength of evidence". PMID- 29332697 TI - Acid alteration of several ignitable liquids of potential use in arsons. AB - Ignitable liquids such as fuels, alcohols and thinners can be used in criminal activities, for instance arsons. Forensic experts require to know their chemical compositions, as well as to understand how different modification effects could impact them, in order to detect, classify and identify them properly in fire debris. The acid alteration/acidification of ignitable liquids is a modification effect that sharply alters the chemical composition, for example, of gasoline and diesel fuel, interfering in the forensic analysis and result interpretation. However, to date there is little information about the consequences of this effect over other accelerants of interests. In this research paper, the alteration by sulfuric acid of several commercial thinners and other accelerants of potential use in arsons is studied in-depth. For that purpose, spectral (by ATR-FTIR) and chromatographic (by GC-MS) data were obtained from neat and acidified samples. Then, the spectral and chromatographic modifications of each studied ignitable liquid were discussed, proposing several chemical mechanisms that explain the new by-products produced and the gradual disappearance of the initial compounds. Hydrolysis, Fischer esterification and alkylation reactions are involved in the modification of esters, alcohols, ketones and aromatic compounds of the studied ignitable liquids. This information could be crucial for correctly identifying these accelerants. Additionally, an exploratory analysis revealed that some of the most altered ignitable liquid samples might be very similar with each other, which could have impact on casework. PMID- 29332699 TI - Aiding the interpretation of forensic gait analysis: Development of a features of gait database. PMID- 29332700 TI - Corrigendum to "Preventing miscarriages of justice: A review of forensic firearm identification" [Sci. Justice 56 (2) (2016) 129-142]. PMID- 29332701 TI - Editor's Perspectives - January 2018. PMID- 29332702 TI - 2018, a turning point for the Archives de Pediatrie. PMID- 29332703 TI - Commentary from the Editor. PMID- 29332704 TI - Cutaneous squamous cell carcinoma: Incidence, risk factors, diagnosis, and staging. AB - Cutaneous squamous cell carcinoma (cSCC), a malignant proliferation of cutaneous epithelium, represents 20% to 50% of skin cancers. Although the majority of cSCCs are successfully eradicated by surgical excision, a subset of cSCC possesses features associated with a higher likelihood of recurrence, metastasis, and death. The proper identification of these aggressive cSCCs can guide additional work-up and management. In the first article in this continuing medical education series, we discuss the incidence, recurrence rates, mortality rates, and risk factors associated with cSCC and review the staging systems used to stratify patients into high- and low-risk groups. The second article in this series reviews the treatment options for cSCC, with focused attention on the management of high-stage tumors. PMID- 29332705 TI - Cutaneous squamous cell carcinoma: Management of advanced and high-stage tumors. AB - While the majority of cutaneous squamous cell carcinomas (cSCCs) can be treated surgically, the additional work-up and treatments indicated for high-risk cSCC remain undefined. In recent years, improvements in tumor staging systems have allowed for the more accurate stratification of tumors into high- and low-risk categories. This insight, along with the publication of cSCC guidelines, brings us closer to the development of a consensus approach. The second article in this continuing medical education series addresses in question and answer format the most common questions related to advanced and high-stage cSCCs, with a simplified flowchart. The questions include the following: 1) Does my patient have high-risk cSCC?; 2) What is the next step for patients with cSCC and palpable lymphadenopathy?; 3) In patients with no clinically evident lymphadenopathy, who are candidates for lymph node staging?; 4) What forms of radiologic imaging can help detect subclinical lymph node metastases?; 5) What is the role of sentinel lymph node biopsy in cSCC?; 6) Which patients with cSCC need adjuvant radiation therapy?; 7) Is adjuvant chemotherapy an option for patients with high-stage cSCC after surgery?; 8) Are targeted and immunologic therapies an option for advanced cSCC?; 9) How often should I follow up with my patient after he/she has been diagnosed with a high-risk cSCC?; 10) What are the options for chemoprophylaxis in a patient with an increased risk of cSCC?; and 11) What chemopreventive measures can be started in coordination with medical oncology or transplant physicians? PMID- 29332706 TI - Skin mapping for the classification of generalized morphea. AB - BACKGROUND: Generalized morphea lacks cohesive clinical features, limiting its clinical and investigative utility. OBJECTIVE: We sought to use computerized lesion mapping to objectively subtype morphea. METHODS: We conducted a 2-part cross-sectional study. In part 1, we created a discovery cohort of patients with generalized morphea of whom lesion maps were created to characterize subsets. Clinical and demographic features were compared between proposed subsets to determine if they identified clinically relevant differences. In part 2, we created a validation cohort to determine if proposed criteria were applicable to different individuals. RESULTS: A total of 123 patients with generalized morphea were included. Mapping produced 2 distribution patterns that encompassed the majority in both cohorts: isomorphic (areas of skin friction) and symmetric (symmetrically distributed on trunk/extremities). In the discovery cohort, the isomorphic subset was older (55.6 +/- 12.7 vs 42.2 +/- 20.1 years, P < .001), all female (30/30 vs 38/43, P = .05), and more often had lichen sclerosus changes (12/43 vs 8/43, P = .02); involvement of the reticular dermis, subcutaneous fat, and/or fascia was more common in symmetric (10/43 vs 1/30) (P = .02). These features persisted in the validation cohort. LIMITATIONS: Single cohort was a limitation. CONCLUSIONS: Symmetric and isomorphic subsets possess distinctive demographic and clinical features, suggesting they more accurately define the phenotype of generalized morphea. Consideration should be given to revising classification. PMID- 29332707 TI - Cutaneous hemophagocytosis: Clinicopathologic features of 21 cases. AB - BACKGROUND: Hemophagocytosis is well known in cytotoxic cutaneous T-cell lymphomas (CTCLs), in which it may represent a sign of hemophagocytic lymphohistiocytosis syndrome (HLHS), and is also typical of cutaneous Rosai Dorfman disease (cRDD) (without prognostic relevance). Only rarely, has cutaneous hemophagocytosis (CH) been described in other skin conditions. OBJECTIVE: To characterize the clinicopathologic features of CH in skin biopsy specimens from patients with conditions other than CTCL or cRDD. METHODS: Case series analyzing clinicopathologic features and follow-up data on patients presenting with histopathologic signs of CH. RESULTS: Biopsy specimens from 21 patients were included. None of the patients had HLHS. The majority (n = 11) presented with leukocytoclastic vasculitis. Other associated diseases were lupus erythematous (n = 2), arthropod bite reaction (n = 2), erysipelas (n = 1), acne conglobata (n = 1), and Sweet syndrome (n = 1). Three patients had a nonspecific rash concomitant with Chlamydia pneumonia, middle ear infection, and pharyngitis, respectively. LIMITATIONS: This was a single-center, retrospective study. CONCLUSION: Isolated CH in conditions other than CTCL and cRDD is a histopathologic finding related mostly to leukocytoclastic vasculitis. Extensive investigations should be performed only if patients have other signs or symptoms of HLHS. PMID- 29332709 TI - Epidemiology of staphylococcal scalded skin syndrome in the United States: A cross-sectional study, 2010-2014. PMID- 29332710 TI - Socioeconomic and geographic barriers to dermatology care in urban and rural US populations. PMID- 29332708 TI - Management of psoriasis in patients with inflammatory bowel disease: From the Medical Board of the National Psoriasis Foundation. AB - BACKGROUND: There is a significant association between psoriasis and inflammatory bowel disease (IBD). Many treatments for psoriasis and psoriatic arthritis are also used for IBD. OBJECTIVE: To assess therapeutic options for patients with psoriasis and concurrent IBD. METHODS: A systematic literature search was performed for clinical studies of biologic and systemic psoriasis medications in psoriasis, psoriatic arthritis, ulcerative colitis, and Crohn's disease, for the period from January 1, 1947, to February 14, 2017. Randomized, controlled, double blinded studies were selected if available. If not, the next highest level of available evidence was selected. RESULTS: Of the 2282 articles identified, 132 were selected. Infliximab and adalimumab have demonstrated efficacy in psoriasis, psoriatic arthritis, ulcerative; colitis, and Crohn's disease. Ustekinumab has demonstrated efficacy in psoriasis, psoriatic arthritis, and Crohn's disease. Certolizumab has demonstrated efficacy in psoriatic arthritis and Crohn's disease. Etanercept, secukinumab, brodalumab, and ixekizumab have demonstrated efficacy in psoriasis and psoriatic arthritis but may exacerbate or induce IBD. Guselkumab has demonstrated efficacy in psoriasis. LIMITATIONS: There are no known clinical trials of treatment specifically for concurrent psoriasis and IBD. CONCLUSIONS: Infliximab and adalimumab have demonstrated efficacy in psoriasis, psoriatic arthritis, ulcerative colitis, and Crohn's disease; other agents have demonstrated efficacy for some, but not all, of these indications. PMID- 29332711 TI - Very low-dose versus standard dose radiation therapy for indolent primary cutaneous B-cell lymphomas: A retrospective study. PMID- 29332712 TI - Differences between recruitment advertisements for academic and private practice dermatologists. PMID- 29332713 TI - Fissured tongue in patients with psoriasis. PMID- 29332714 TI - Oral green tea catechins do not provide photoprotection from direct DNA damage induced by higher dose solar simulated radiation: A randomized controlled trial. PMID- 29332715 TI - Prevalence of gastrointestinal comorbidities in rosacea: Comparison of subantimicrobial, modified release doxycycline versus conventional release doxycycline. PMID- 29332717 TI - Patch testing for nonimmediate cutaneous adverse drug reactions. PMID- 29332716 TI - Predicting the incidence and timing of central nervous system disease in metastatic melanoma: Implications for surveillance and preventative therapy. PMID- 29332718 TI - Accuracy of death certification in cutaneous squamous cell carcinoma: A retrospective case review. PMID- 29332719 TI - The ethics of volunteerism: Whose cultural and ethical norms take precedence? PMID- 29332720 TI - Commentary: The ethics of volunteerism: Whose cultural and ethical norms take precedence? PMID- 29332721 TI - Oral isotretinoin as an adjunctive treatment for recurrent genital warts. PMID- 29332722 TI - From laboratory to operating room: Innovative use of manual blood cell counting machine for counting follicular grafts. PMID- 29332723 TI - A method using simple stitches around the safety margin for hemostasis in scalp surgery. PMID- 29332724 TI - Reply to: "Tofacitinib for the treatment of severe alopecia areata and variants". PMID- 29332725 TI - In reply. PMID- 29332726 TI - Histopathology of facial papules in frontal fibrosing alopecia and therapeutic response to oral isotretinoin. PMID- 29332727 TI - Reply to: "Histopathology of facial papules in frontal fibrosing alopecia and therapeutic response to oral isotretinoin". PMID- 29332728 TI - Is the setting sun dermoscopic pattern specific to juvenile xanthogranuloma? PMID- 29332729 TI - Reply to: "Is the setting sun dermoscopic pattern specific to juvenile xanthogranuloma?" PMID- 29332730 TI - Biomechanical factors associated with running economy and performance of elite Kenyan distance runners: A systematic review. AB - BACKGROUND: Running economy (RE) is a determinant of performance in endurance sports and is a complex multi-factorial measure which reflects the combined functioning of bio-mechanical, neuro-muscular, metabolic and cardio-respiratory factors some of which are hereditary or adapt to coaching. Kenyan distance runners have dominated major global events with their unmatched performance for decades and this phenomenon has prompted several investigations aimed at establishing possible factors associated with their performance. This systematic review was aimed at establishing up-to date quantitative synthesis of evidence on biomechanical factors associated with running economy and performance of elite Kenyan distance runners and to provide an algorithm for future research and coaching strategies. METHODS: A comprehensive electronic search was conducted through June 2017. Quality appraisal was independently done by both reviewers using the STROBE checklist. Descriptive summaries and tables were used to illustrate biomechanical outcomes, mean differences and confidence intervals. Evidence from reviewed studies was graded according to the Australian National Health and Medical Research Council (NHMRC) hierarchy for aetiological factors and meta-analysis was performed where applicable. RESULTS: Eight cross-sectional studies were included. The overall methodological score was moderate (58%). Elite Kenyan distance runners have significant longer gastroc-Achilles tendons compared to their counterparts while their shank length is not significantly longer. There is no certainty of evidence regarding the association between their characteristic unique profile of tall and slender bodies, low BMI and low body mass, short ground contact and flight times, greater forward lean torso and faster and greater forward leg swing with RE and performance. CONCLUSION: Our findings presents evidence on biomechanical factors associated with RE and performance of elite Kenyan distance runners. Despite these findings, there are a number of limitations inherent to this review including; low level of evidence, minimal number of included studies, small sample size and lack of appropriate control subjects. However, we considered these shortcomings and summarised the best available evidence in attempt to give direction to future research and coaching strategies. PMID- 29332731 TI - Quantitative tissue parameters of Achilles tendon and plantar fascia in healthy subjects using a handheld myotonometer. AB - OBJECTIVE: The aim of the study was to examine the quantitative tissue properties of the Achilles tendon and plantar fascia using a handheld, non-invasive MyotonPRO device, in order to generate normal values and examine the biomechanical relationship of both structures. DESIGN: Prospective study of a large, healthy sample population. PARTICIPANTS: The study sample included 207 healthy subjects (87 males and 120 females) for the Achilles tendon and 176 healthy subjects (73 males and 103 females) for the plantar fascia. For the correlations of the tissue parameters of the Achilles tendon and plantar fascia an intersection of both groups was formed which included 150 healthy subjects (65 males and 85 females). INTERVENTIONS: All participants were measured in a prone position. Consecutive measurements of the Achilles tendon and plantar fascia were performed by MyotonPRO device at defined sites. RESULTS: For the left and right Achilles tendons and plantar fasciae all five MyotonPRO parameters (Frequency [Hz], Decrement, Stiffness [N/m], Creep and Relaxation Time [ms]) were calculated of healthy males and females. The correlation of the tissue parameters of the Achilles tendon and plantar fascia showed a significant positive correlation of all parameters on the left as well as on the right side. CONCLUSIONS: The MyotonPRO is a feasible device for easy measurement of passive tissue properties of the Achilles tendon and plantar fascia in a clinical setting. The generated normal values of the Achilles tendon and plantar fascia are important for detecting abnormalities in patients with Achilles tendinopathy or plantar fasciitis in the future. Biomechanically, both structures are positively correlated. This may provide new aspects in the diagnostics and therapy of plantar fasciitis and Achilles tendinopathy. PMID- 29332732 TI - The science of respiratory characteristics in individuals with chronic low back pain: Interpreting through statistical perspective. PMID- 29332733 TI - A fundamental critique of the fascial distortion model and its application in clinical practice. AB - INTRODUCTION: The therapeutic techniques used in the fascial distortion model (FDM) have become increasingly popular among manual therapists and physical therapists. The reasons for this trend remain to be empirically explored. Therefore this paper pursues two goals: first, to investigate the historical and theoretical background of FDM, and second, to discuss seven problems associated with the theory and practice of FDM. MATERIALS AND METHODS: The objectives of this paper are based on a review of the literature. The research mainly focuses on clinical proofs of concept for FDM treatment techniques in musculoskeletal medicine. RESULTS: FDM as a treatment method was founded and developed in the early 1990s by Stephen Typaldos. It is based on the concept that all musculoskeletal complaints can be traced back to three-dimensional deformations or distortions of the fasciae. The concept is that these distortions can be undone through direct application of certain manual techniques. A literature review found no clinical trials or basic research studies to support the empirical foundations of the FDM contentions. DISCUSSION: Based on the absence of proof of concept for FDM treatment techniques along with certain theoretical considerations, seven problems emerge, the most striking of which include (1) diagnostic criteria for FDM, (2) the biological implausibility of the model, (3) the reduction of all such disorders to a single common denominator: the fasciae, (4) the role of FDM research, and (5) potentially harmful consequences related to FDM treatment. CONCLUSION: The above problems can only be invalidated through high-quality clinical trials. Allegations that clinical experience is sufficient to validate therapeutic results have been abundantly refuted in the literature. PMID- 29332734 TI - Correlation between cervical flexor muscle thickness and craniocervical flexion torque in healthy subjects. AB - The purpose of this study was to clarify the relationship between the size of the cervical flexor muscles and craniocervical (CC) flexion torque. Thirty-eight healthy men participated in this study. Thickness of the deep cervical flexor (DCF) and sternocleidomastoid (SM) muscles were measured using ultrasonography. Maximal isometric CC flexion torque was measured using dynamometry. The DCF and SM muscle thickness and CC flexion torque were normalized relative to body weight. Correlations between normalized muscle thickness and normalized CC flexion torque were determined. A significant positive correlation was observed between normalized DCF muscle thickness and normalized CC flexion torque (r = 0.361, P = 0.028), whereas there was no significant correlation between normalized SM muscle thickness and normalized CC flexion torque (r = 0.233, P = 0.166). DCF muscle thickness appears to have potential clinical application in the performance of CC flexion. PMID- 29332735 TI - Within-day and between-day reliability of thickness measurements of abdominal muscles using ultrasound during abdominal hollowing and bracing maneuvers. AB - Ultrasonography imaging has been used as a non-invasive method to estimate the thickness and relative activities of the abdominal muscles in patients with lower back pain (LBP). However, the statistical reliability of US thickness measurements of abdominal muscles, including transversus abdominis (TrA), internal oblique (IO) and external oblique (EO) muscles during abdominal hollowing (AH) and abdominal bracing (AB) maneuvers has not been well investigated. This study was performed on a total of 20 female subjects (10 with LBP and 10 without LBP) in the age range of 25-55 years to assess within-day and between-day reliability of the measurements. US measurements on maneuvers were repeated after two hours for the within-day reliability and after five days for the between-day reliability assessment. High intra-class correlation coefficient (ICC) values (>0.75) for within-day and between-day reliability assessments during AH maneuver were concluded. The ICC values were moderate for reliability assessment during AB. The ICC values for AH were greater than AB both for within- and between-day reliabilities. The small standard error of measurement and minimal detectable change values (0.16-0.78 and 0.44 to 2.15, respectively) were found for both AH and AB. We recommend real-time US imaging as a reliable way of determining the thicknesses of the TrA and IO muscle (and to some extent, EO muscle) for both healthy and LBP patients. PMID- 29332736 TI - Electromyographic changes in muscles around the ankle and the knee joints in women accustomed to wearing high-heeled or low-heeled shoes. AB - OBJECTIVES: This study aimed to investigate muscle activities in the muscles around the ankle and knee joints in women accustomed to wearing high-heeled or low-heeled shoes. METHODOLOGY: Forty young women (age: 18-40 years) participated in this comparative clinical study. Twenty of the recruited subjects were accustomed to high-heeled shoes and the other half to low-heeled shoes. Electrical activities of the ankle and knee muscles in both groups with and without wearing their accustomed shoes were studied during walking. RESULTS: Tibialis anterior and the medial gastrocnemius muscles started contraction earlier in the high-heeled shoe group. The duration of medial gastrocnemius activity and the intensity of proneus longus activity were significantly more in the high-heeled shoe group. CONCLUSION: Wearing high-heeled shoe for a long time could result in over work of muscles such as medial gastrocnemius and proneus longus by increasing the duration or the intensity of their contractions during walking. PMID- 29332737 TI - Effect of a lateral glide mobilisation with movement of the hip on vibration threshold in healthy volunteers. AB - BACKGROUND: Mulligan's mobilisation-with-movement (MWM) techniques are proposed to achieve their clinical benefit via neurophysiological mechanisms. However, previous research has focussed on responses in the sympathetic nervous system only, and is not conclusive. An alternative measure of neurophysiological response to MWM is required to support or refute this mechanism of action. Recently, vibration threshold (VT) has been used to quantify changes in the sensory nervous system in patients experiencing musculoskeletal pain. OBJECTIVE: To investigate the effect of a lateral glide MWM of the hip joint on vibration threshold compared to a placebo and control condition in asymptomatic volunteers. METHODS: Fifteen asymptomatic volunteers participated in this single-blinded, randomised, within-subject, placebo, control design. Participants received each of three interventions in a randomised order; a lateral glide MWM of the hip joint into flexion, a placebo MWM, and a control intervention. Vibration threshold (VT) measures were taken at baseline and immediately after each intervention. Mean change in VT from baseline was calculated for each intervention and then analysed for between group differences using a one-way analysis of variance (ANOVA). RESULTS: A one-way ANOVA revealed no statistically significant differences between the three experimental conditions (P = 0.812). CONCLUSION: This small study found that a lateral glide MWM of the hip did not significantly change vibration threshold compared to a placebo and control intervention in an asymptomatic population. This study provides a method of using vibration threshold to investigate the potential neurophysiological effects of a manual therapy intervention that should be repeated in a larger, symptomatic population. PMID- 29332738 TI - Body composition estimation in children and adolescents by bioelectrical impedance analysis: A systematic review. AB - BACKGROUND: Bioelectrical impedance analysis (BIA) has commonly been used to assess the body composition of children and adolescents. BIA validation studies have found distinct correlation values with reference methods. OBJECTIVES: To assess the reproducibility, correlation and mean differences in body composition estimated by BIA and reference methods, we systematically reviewed the literature in the pediatric population. METHOD: The search for articles was conducted in March 2016 and was limited to articles published from 2005 to 2015 in the PubMed, Embase, EBSCO, Web of Science, Scopus and SciELO databases. Two reviewers independently performed data selection and extraction of studies that investigated the BIA validity, responsiveness, reliability and/or measurement error (reproducibility) to estimate body composition in children and adolescents with an average age <= 18 years. RESULTS: The search produced 48 articles. Almost perfect reproducibility was found in the body fat percentage estimated by BIA, and there was almost perfect correlation between the BIA ratings and reference methods for fat mass and fat-free mass. Regarding component estimates, BIA underestimated the fat mass in both sexes. CONCLUSIONS: The body fat percentage estimated by BIA exhibited almost perfect reproducibility. The fat mass and fat free mass estimated by BIA correlated almost perfectly with the reference methods in both sexes. BIA underestimated the fat mass in both sexes. PMID- 29332739 TI - Multifidus muscle size in adolescents with and without back pain using ultrasonography. AB - OBJECTIVE: The purposes of this study were; a) to compare multifidus muscle cross sectional area (CSA) in male adolescents suffering from low back pain (LBP) with healthy male adolescents using ultrasonography (US), and b) to assess the correlation between multifidus muscle size and demographic variables. METHODS: A random sample of 40 healthy boys (as a control group) and 40 boys with LBP (as an experimental group) at the age range of 15-18 years was recruited in the present cohort study. Multifidus muscle dimensions including CSA, antero-posterior and medio-lateral dimensions were measured at level of L5 in both groups using US. RESULTS: The results of an independent t-test to compare multifidus muscle size between the experimental and control groups showed a significant difference between the two groups in terms of CSA, antro-posterior and medio-lateral dimensions so that the experimental group had smaller muscle size than the control group. A significant correlation was found between height, weight and body mass index (BMI) and multifidus muscle size, but no significant correlation was observed between age and muscle size. Pain intensity and functional disability index was significantly correlated with muscle size in the experimental group. CONCLUSIONS: According to the results, multifidus muscle size was decreased in 15-18 years old male adolescents suffering from LBP compared with their healthy counterparts. Further studies are needed to support the findings of the present study. PMID- 29332740 TI - An electromyographic analysis of selected asana in experienced yogic practitioners. AB - The purpose of this study was to assess electromyographic (EMG) output of the anterior tibialis (TA), medial head of the gastrocnemius (GA), rectus femoris (RF), bicep femoris (BF), and gluteus medius (GM) in experienced yogic practitioners during selected yoga asana. A secondary purpose was to examine the differences in EMG output in unilateral V. bilateral standing yoga asana. The study was a single occasion descriptive design. Thirteen healthy yoga practitioners (1 male, 12 females, average age of 37.5) with more than five years of experience were recruited. EMG activity was recorded during maximum voluntary isometric contractions (MVIC) of the TA, GA, RF, and BF using the Biodex Multijoint System(r), and GM using manual muscle testing position. Subjects then performed the following yoga asana while EMG activity was recorded: downward facing dog, half-moon, tree, chair, and warrior three pose. Each asana was held for fifteen seconds and performed three times. EMG data were band pass filtered and the root mean square was obtained. Asana data were then amplitude normalized with the subjects' MVIC data. Integrated EMG was calculated for TA, GA, RF, BF and GM, in each asana. A multilevel regression analysis was performed, and peak EMG data was compared. Analysis between muscles showed that during CH and DD EMG activity was greatest in the TA muscle compared to the other muscles, while during HM and WR the GA muscle showed the greatest activity. Analysis within muscles showed low GA, BF, and GM activity during chair pose and downward facing dog compared to half moon, tree, and warrior three, and high RF activity during chair compared to the other poses. In conclusion, there were differences in frontal and sagittal plane muscle activation between single limb and double limb poses in experienced yogic practitioners. PMID- 29332741 TI - Abdominal and pelvic floor electromyographic analysis during abdominal hypopressive gymnastics. AB - INTRODUCTION: Abdominal hypopressive gymnastics appeared as an alternative to traditional abdominal exercises to promote abdominal muscles strength without overloading the pelvic floor muscles (PFM). To determine the activation level of abdominal muscles and PFM and the posture influence in the level of activation in these muscles during abdominal hypopressive gymnastics, we used surface electromyography in young and healthy multipara women. METHODS: This is an observational study with eutrophic nulliparous women aged between 18 and 35 years, with abdominal skinfold less than or equal to 3 cm and active or irregularly active physical activity. Surface electromyography was used for rectus abdominis, external oblique, transversus abdominal/internal oblique (TrA/IO) and PFM assessment in the supine, quadruped and orthostatic (upright standing) positions during abdominal hypopressive gymnastics using normalized electromyographic (%EMG) data. We also analyzed the difference in activation between each muscle and between muscles and positions. RESULTS: Thirty women were evaluated and the mean age was 25.77 years (SD 3.29). The group formed by the TrA/IO muscles and the PFM showed higher %EMG in all the positions assessed, followed by the external oblique and rectus abdominis muscles. A comparison of %EMG of each muscle between the different positions showed differences only in rectus abdominis between the supine and quadruped (p = 0.001) and supine and orthostatic positions (p = 0.004), and in TrA/IO between the supine and orthostatic (p = 0.023) and orthostatic and quadruped positions (p = 0.019). CONCLUSIONS: The results suggest that abdominal hypopressive gymnastics can activate the abdominal muscles and PFM and the position do not have influence on electromyographic activation level of the PFM and external oblique. PMID- 29332742 TI - The effects of dorso-lumbar motion restriction on EMG activity of selected muscles during running. AB - : The effects of restricting dorso-lumbar spine mobility on electromyographic activity of the erector spinae, quadriceps femoris, hamstrings and gastrocnemius muscles in runners was investigated. Thermoplastic casting material was fashioned into a rigid orthosis and used to restrict spinal motion during running. Volunteers ran on a treadmill at 2.78 m/sec, under normal conditions and with spinal motion restricted. Surface electromyographic data was collected during both sets of trials. Normal electromyographic data was also compared with previous authors to determine similarity with their electromyographic data. RESULTS: Casted running resulted in an increase in erector spinae (p < 0.01) and quadriceps femoris (p = 0.02) electromyography activity. Total stride time and swing time of gait were decreased during casted running (p < 0.01), indicating a shift towards shorter and thus more frequent steps to run the same distance. The normal electromyographic data collected was in agreement with previously reported work. CONCLUSIONS: Neurological control over muscle and the fascia surrounding it is responsible for joint movement and load transfer. Experimentally restricting spinal motion during running demonstrated an increase in erector spinae and rectus femoris electromyographic activity. This lends support to the hypothesis that decreased spinal mobility may be a contributing factor to overuse muscle injuries in runners. PMID- 29332743 TI - Myoeletric indices of fatigue adopting different rest intervals during leg press sets. AB - INTRODUCTION: The purpose of this study was to examine the acute effect of different rest intervals between multiple sets of the 45 degrees angled leg press exercise (LP45) on surface electromyographic (SEMG) spectral and amplitude indices of fatigue. METHODS: Fifteen recreationally trained females performed three protocols in a randomized crossover design; each consisting of four sets of 10 repetitions with 1 (P1), 3 (P3), or 5 (P5) minute rest intervals between sets. Each set was performed with 70% of the LP45 ten-repetition maximum load. The SEMG data for biceps femoris (BF), vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) muscles was then evaluated. RESULTS: The SEMG amplitude change in the time coefficient (CRMS) and spectral fatigue index (Cf5) indicated higher levels of fatigue for all muscles evaluated during the P3 protocol versus the P1 and P5 protocols (p <= 0.05), respectively. The RF and VL muscles showed greater fatigue levels by the second and third sets; whereas, greater fatigue was shown in the VM and BF muscles by the fourth set (p <= 0.05). CONCLUSIONS: A three-minute rest interval between sets might represent a neuromuscular window between a fatigue stated and fully recovered state in the context of neural activation. Moreover, a three minute rest interval between sets might allow for consistent recruitment of high threshold motor units over multiple sets, and thus promote a more effective stimulus for strength gains. PMID- 29332744 TI - How many physical therapy sessions are required to reach a good outcome in symptomatic lumbar spondylolisthesis? A retrospective study. AB - BACKGROUND: There is a lack of conclusive information about the optimal dosage of physical therapy treatments in Spondylolisthesis (SPL) patients. PURPOSE: The present study attempted to evaluate the comparative effectiveness of two different doses in reaching similar clinical outcomes. METHODS: A retrospective cohort study of 64 consecutive patients admitted for physical therapy with symptomatic lumbar grade I SPL (42 +/- 15years, 57% female) was conducted. At the end of the treatment, all participants were retrospectively assigned to one of two groups, receiving either 5-8 or 9-12 sessions (experimental or control group, respectively) of physical therapy treatments. The Prone Bridge Test (PBT) and the Supine Bridge Test (SBT) were used to measure muscular endurance. RESULTS: The area under the ROC curve for the PBT was 0.64 (95% CI 0.45-0.83) and for the SBT was 0.57 (95% CI 0.33-0.80). The optimal cutoff points were 25.5s for the PBT and 55.0s for the SBT. Logistic regression revealed that PBT (OR = 1.062) was associated with SPL. The final regression model explained 77.4% (R2 = 0.341; p = 0.024) of the variability. CONCLUSIONS: In this sample, the number of sessions required to achieve satisfactory outcomes ranged from 5 to 12. The clinical results of the subjects in the 5-8 sessions group were similar to the 9-12 sessions group. Individual's coping mechanisms could be considered in future studies to understand which patients will require more therapeutic sessions. PMID- 29332745 TI - A critical overview of the current myofascial pain literature - January 2018. AB - The majority of papers included in the quarterly review discuss various aspects of dry needling (DN), which continues to be of interest to researchers and clinicians. A study by Liu et al. is the first paper to examine the effects of DN of acetylcholine, esterase and receptors. The study provides support for the integrated trigger point hypothesis and for DN. A paper by Hightower and colleagues found an intriguing link between low magnesium levels in the drink water supply, vitamin D, and myofascial pain, cancer, tendon ruptures, and colon polyps. Contributions originated in the Brazil, China, Germany, Iran, India, Poland, South Korea, Spain, Taiwan, Turkey, and the US. PMID- 29332746 TI - Is Pilates an effective rehabilitation tool? A systematic review. AB - BACKGROUND: Pilates is a system of exercise focusing upon controlled movement, stretching and breathing. Pilates is popular today not only for physical fitness but also for rehabilitation programs. This paper is a review of the literature on the effectiveness of Pilates as a rehabilitation tool in a wide range of conditions in an adult population. METHODS: A systematic literature review was carried out according to the PRISMA guidelines. Electronic databases were searched for cohort studies or randomised controlled trials (RCTs), and inclusion and exclusion criteria were applied. The final RCTs were assessed using the PEDro and CONSORT 2010 checklists. RESULTS: Twenty-three studies, published between 2005 and 2016, met the inclusion criteria. These papers assessed the efficacy of Pilates in the rehabilitation of low back pain, ankylosing spondylitis, multiple sclerosis, post-menopausal osteoporosis, non-structural scoliosis, hypertension and chronic neck pain. Nineteen papers found Pilates to be more effective than the control or comparator group at improving outcomes including pain and disability levels. When assessed using the CONSORT and PEDro scales, the quality of the papers varied, with more falling toward the upper end of the scale. CONCLUSION: The majority of the clinical trials in the last five years into the use of Pilates as a rehabilitation tool have found it to be effective in achieving desired outcomes, particularly in the area of reducing pain and disability. It indicates the need for further research in these many areas, and especially into the benefits of particular Pilates exercises in the rehabilitation of specific conditions. PMID- 29332747 TI - Effects of spinal manipulation and myofascial techniques on heart rate variability: A systematic review. AB - BACKGROUND: The analysis of heart rate variability is important to the investigation of stimuli from the autonomic nervous system. Osteopathy is a form of treatment that can influence this system in healthy individuals as well as those with a disorder or disease. OBJECTIVES: The aim of the present study was to perform a systematic review of the literature regarding the effect of spinal manipulation and myofascial techniques on heart rate variability. METHODS: Searches were performed of the Pubmed, Scielo, Lilacs, PEDro, Ibesco, Cochrane and Scopus databases for relevant studies. The PEDro scale was used to assess the methodological quality of each study selected. RESULTS: A total of 505 articles were retrieved during the initial search. After an analysis of the abstracts, nine studies were selected for the present review. CONCLUSION: Based on the findings, osteopathy exerts an influence on the autonomic nervous system depending on the stimulation site and type. A greater parasympathetic response was found when stimulation was performed in the cervical and lumbar regions, whereas a greater sympathetic response was found when stimulation was performed in the thoracic region. PMID- 29332748 TI - The Pilates client on the hypermobility spectrum. PMID- 29332749 TI - Long-term effect of direction-movement control training on female patients with chronic neck pain. AB - BACKGROUND: Treatment of movement faults in the neck is known as an important factor in treatment of chronic neck pain. Along with the identification of site and direction of the faults, direction-movement control intervention retrains the control of the movement faults. PURPOSE: This study was designed to investigate long-term effects of a direction-movement control training on pain, disability, head repositioning accuracy, function, cervical flexor endurance, and range of motion in female patients with chronic nonspecific neck pain. MATERIAL AND METHODS: Thirty women (36.5 +/- 5.7 years) with chronic nonspecific neck pain were randomly allocated into two groups, i.e., an experimental group (n = 15) and a control group (n = 15). The experimental group performed the direction-movement control training for 30 min/day, three days per week for six months. All subjects were evaluated using the visual analog scale (VAS), range of motion (TOM), progressive iso-inertial lifting evaluation (PILE), neck disability Index (NDI), helmet attached with laser pointer using for head repositioning accuracy (HRA), and Trott's test (deep neck flexor endurance), in pre- and six-months post treatment intervention. RESULTS: Significant differences were observed for the pain, neck disability Index, function endurance, head repositioning accuracy, range of motion, and cervical flexor endurance in the experimental group compared to that of control group. CONCLUSION: Direction-movement control training is likely to be an effective training program to enhance body functionality through improvement of pain, function, endurance, head repositioning accuracy, range of motion, and cervical flexor endurance. Due to the high reported effect size for direction-movement control exercises, the application of the training is suggested as a supplementary method to improve chronic nonspecific neck pain in females. PMID- 29332750 TI - The influence of surface angle on muscle activity during Pilates based exercises. PMID- 29332751 TI - Gamification. PMID- 29332752 TI - The effects of neck mobilization in patients with chronic neck pain: A randomized controlled trial. AB - OBJECTIVE: To determine the effect of mobilization and routine physiotherapy on pain, disability, neck range of motion (ROM) and neck muscle endurance (NME) in patients having chronic mechanical neck pain (NP). METHODS: Sixty eight patients with chronic mechanical NP were randomly allocated into two groups by using a computer generated random sequence table with 34 patients in the multi-modal mobilization group and 34 patients in the routine physiotherapy group. Baseline values for pain, disability, NME, and neck ROM were recorded using visual analogue scale (VAS), neck disability index (NDI), neck flexor muscle endurance test and universal goniometer respectively, before the treatment. Each patient received 10 treatment sessions over a period of four weeks and at the end of four weeks all the outcome measures were recorded again. RESULTS: A paired t-test revealed significant pre to post treatment differences for all outcome measures in both groups (p <= 0.001 in all instances). An independent t-test revealed statistically significant differences for pain, disability, NME, and neck ROM in favor of the multi-modal mobilization group with a between group difference of 1.57 cm for VAS (p < 0.001), 11.74 points for NDI (p = 0.001), 18.45 s for NME (p < 0.001) and 6.06-8.24 degrees for neck ROM (p < 0.05). CONCLUSION: The results suggest that a combination of cervical mobilization with routine physiotherapy is more effective for reducing pain and disability and improving NME and neck ROM in patients with chronic mechanical NP compared to routine physiotherapy alone. PMID- 29332753 TI - Cognitive Functional Therapy (CFT) for chronic non-specific neck pain. AB - This case report presents the effect of Cognitive Functional Therapy (CFT) in a patient with chronic non-specific neck pain. The patient believed that pain signified tissue damage, and demonstrated pain catastrophizing, hypervigilance, stress sensitivity, and movement impairment of the neck, during extension and rotation. The CFT intervention integrated a cognitive approach with manual therapy and active exercises to encourage the patient to trust her neck again. One month after the first appointment, the patient had recovered confidence, and the pain and disability had disappeared almost entirely. PMID- 29332754 TI - Conservative management of thumb carpometacarpal osteoarthritis: An Italian survey of current clinical practice. AB - OBJECTIVE: The purpose of this study was to elucidate expert opinion on the conservative treatment of thumb carpometacarpal (CMC) joint osteoarthritis (OA). METHODS: A 21-item survey to determine the practice patterns of Italian hand therapists who treat arthritis of the CMC joint was developed and distributed through a professional online survey service to assure confidentiality and anonymity. RESULTS: Of the respondents, 80.8% were physical therapists; the remaining 19.2% were occupational therapists. 84.6% of the specialists who make decisions regarding patient pain management education. CONCLUSIONS: There is variability in the knowledge and practice patterns of Italian hand therapists relating to conservative management of thumb CMC OA. PMID- 29332755 TI - Investigating the anticipatory postural adjustment phase of gait initiation in different directions in chronic ankle instability patients. AB - OBJECTIVE: The main objective of the present study was to analyze how supra spinal motor control mechanisms are altered in different directions during anticipatory postural phase of gait initiation in chronic ankle instability patients. It seems that supra spinal pathways modulate anticipatory postural adjustment phase of gait initiation. Yet, there is a dearth of research on the effect of chronic ankle instability on the anticipatory postural adjustment phase of gait initiation in different directions. METHOD: A total of 20 chronic ankle instability participants and 20 healthy individuals initiated gait on a force plate in forward, 30 degrees lateral, and 30 degrees medial directions. RESULTS: According to the results of the present study, the peak lateral center of pressure shift decreased in forward direction compared to that in other directions in both groups. Also, it was found that the peak lateral center of pressure shift and the vertical center of mass velocity decreased significantly in chronic ankle instability patients, as compared with those of the healthy individuals. CONCLUSION: According to the results of the present study, it seems that chronic ankle instability patients modulate the anticipatory postural adjustment phase of gait initiation, compared with healthy control group, in order to maintain postural stability. These changes were observed in different directions, too. PMID- 29332756 TI - Asymmetry of activation of lateral abdominal muscles during the neurodevelopmental traction technique. AB - OBJECTIVE: The aim of the study was to evaluate the symmetry and pattern of activation of lateral abdominal muscles (LAM) in response to neurodevelopmental traction technique. DESIGN AND PARTICIPANTS: Measurements of LAM thickness were performed in four experimental conditions: during traction with the force of 5% body weight (5% traction): 1) in neutral position, 2) in 20 degrees posterior trunk inclination; during traction with the force of 15% body weight (15% traction): 3) in neutral position, 4) in 20 degrees posterior trunk inclination. Thirty-seven healthy children participated in the study. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: To evaluate LAM activation level ultrasound technology was employed (two Mindray DP660 devices (Mindray, Shenzhen, China) with 75L38EA linear probes). An experiment with repeated measurements of the dependent variables was conducted. RESULTS: Side-to-side LAM activation asymmetry showed relatively high magnitude, however, significant difference was found only in case of the obliquus externus (OE) during stronger traction (P < 0.05). The magnitude of LAM thickness change formed a gradient, with the most profound transversus abdominis (TrA) showing the smallest change, and the most superficial OE - the greatest. The inter-muscle differences were most pronounced between the OE and TrA (P < 0.001). CONCLUSIONS: During the neurodevelopmental traction technique there is a difference in individual LAM activation level, with deeper muscles showing less intense activation. In statistical terms, the only signs of side-to-side asymmetry of LAM activation are visible in case of the OE, however, the magnitude of asymmetry is relatively high. The results allow to identify patterns of activation of LAM in children showing typical development that will serve as a reference in future studies in children with neurological disorder. PMID- 29332757 TI - Activation of lower limb muscles with different types of mount in hippotherapy. AB - OBJECTIVES: To analyze muscle activation of lower limbs (LL) of subjects in hippotherapy sessions. METHODS: The study included 10 healthy subjects, five male and five female, with an average age of 24.03 (+/-4.06) years. Subjects underwent four hippotherapy sessions of 30 min with interval of one week, and each session was performed with a different type of mount material in the following order: 1st performed with saddle and feet in the stirrups (S1), 2nd with saddle and feet off the stirrups (S2), 3rd with blanket and feet off the stirrup (S3) and 4th with blanket and feet in the stirrups (S4). Surface electromyographies were performed at 1, 10, 20 and 30 min of session, and the electrodes were placed on muscle bellies bilaterally on the muscles rectus femoris, vastus medialis, vastus lateralis and tibialis anterior. RESULTS: The analysis of muscle activity during these four sessions showed a significant difference in muscle recruitment in LL, and sessions with blanket and feet in the stirrups provided greater muscle activation of quadriceps and tibialis anterior with the horse at step gait (p = 0.0002). CONCLUSION: The results suggest that feet positioned in the stirrups is a relevant factor for greater muscle recruitment in LL to maintain postural balance while riding, especially using a blanket as mount material for ride a horse. PMID- 29332758 TI - Prevalence of physical activity among adolescents in southern Brazil. AB - OBJETIVE: The aim of this study was to estimate the prevalence of low physical activity levels and to identify related factors (sociodemographic, lifestyle and body weight status) in adolescents. METHODS: The study included 1103 students aged 14-19 years from city of Sao Jose/SC, Brazil. Physical activity was assessed using a questionnaire that classified adolescents into those who meet recommendations and those who do not meet recommendations. Independent variables were gender, age, monthly household income, maternal education, balanced diet, number of physical education classes, sleep/day, tobacco use, excessive alcohol use, screen time and weight status. Binary logistic regression was used to estimate odds ratios and 95% confidence intervals. RESULTS: Prevalence of inadequate levels of physical activity was 77.2%. Older students and those with lower monthly family income were more likely to have inadequate levels of physical activity. Female adolescents and older students were more likely to be sufficiently active compared to male and younger adolescents. Adolescents who sleep more hours/day were more likely to be insufficiently active. CONCLUSION: Efforts to increase levels of physical activity should be focused on older adolescents and those with lower monthly family income. PMID- 29332759 TI - Neck pain in Iranian school teachers: Prevalence and risk factors. AB - Neck pain (NP) is a common occupational health problem associated with a number of professions. Many studies indicate that NP is common among teachers, yet no published study was found to address the prevalence and risk factors of NP in Iranian school teachers. The purpose of the current study was to assess the prevalence and risk factors for NP among school teachers in Iran. A cross sectional study was conducted on 586 randomly selected primary and high schools teachers from 22 schools in Tehran, Iran. Point, last month, last 6 months, annual, and lifetime prevalence rates of NP were 24%, 29%, 33%, 37%, and 43%, respectively. There was a significant association and increased prevalence of NP with a number of risk factors such as; being female, age, general health, length of employment, regular exercise and job satisfaction (P < 0.05 in all instances). Therefore, some individual and occupational factors may make conditions relevant for the development of NP among teachers. PMID- 29332760 TI - Ischemic compression and kinesiotherapy on chronic myofascial pain in breast cancer survivors. AB - OBJECTIVE: assess the effects of ischemic compression and kinesiotherapy on the rehabilitation of breast cancer survivors with chronic myofascial pain. METHODS: A randomized, controlled, blinded clinical trial was performed with 20 breast cancer survivors with myofascial trigger point in the upper trapezius muscle. Patients were randomly allocated to ischemic compression + kinesiotherapy (G1, n = 10) and kinesiotherapy (G2, n = 10). Both groups were submitted to 10 sessions of treatment. The variables evaluated were: Numeric Rating Scale, Pain Related Self-Statement Scale, pressure pain threshold, Functional Assessment of Cancer Therapy-Breast and Infrared thermography. RESULTS: A significant reduction (p < 0.05) was observed in pain intensity after 10 sessions in Groups 1 and 2, a significant increase (p < 0.05) in pressure pain threshold in both the operated and non-operated side after 10 sessions for Group 1. CONCLUSION: Ischemic compression associated with kinesiotherapy increases the pressure pain threshold on the myofascial trigger point in the upper trapezius muscle and reduces the intensity of pain in breast cancer survivors with myofascial pain. PMID- 29332761 TI - Exercise on balance and function for knee osteoarthritis: A randomized controlled trial. AB - OBJECTIVES: To assess balance and function of symptomatic and asymptomatic subjects with knee osteoarthritis (OA) and investigate the influence of physical exercise. DESIGN: Subjects were divided into three groups: Group 1 (n = 15), symptomatic knee OA; Group 2 (n = 11), asymptomatic knee OA; and Group 3 (n = 16), knee OA and no intervention. History of falls, the WOMAC questionnaire, balance and functionality were assessed. RESULTS: After intervention, there was a significant difference in the total WOMAC score and in the pain and function domains only in Group 1. After intervention, Group 2 showed significant differences in decreased time on the Step Up/Over test and postural sway increased. CONCLUSION: After the intervention, the symptomatic group reported improvement in pain and function on the WOMAC, while the asymptomatic group showed improvement in performance in the Step Up/Over test. There were no new episodes of falls in groups 1 and 2. PMID- 29332762 TI - The effect of foot orthoses on joint moment asymmetry in male children with flexible flat feet. AB - INTRODUCTION: It has been widely postulated that structural and functional misalignments of the foot, such as flat foot, may cause mechanical deviations of the lower limb during walking. The aim of this study was to investigate the effect of foot orthoses on lower extremity joint moment asymmetry during the stance phase of walking in children with asymptomatic flexible flat feet. METHODS: Fourteen volunteer male children, clinically diagnosed with flexible flat feet, participated in this study. Subjects completed 12 walking trials at a self-selected walking speed while 3-dimensional kinematic and kinetic data were collected for two conditions: shod with no orthoses, and shod with orthoses. The gait asymmetry index for each variable for each subject was defined as: (1 (lesser moment/greater moment)) * 100. RESULTS: Results reveal no significant differences in ankle or knee joint moment asymmetry. However, the use of foot orthoses decreased asymmetry for the hip abduction moment (P = 0.04) compared to walking without orthoses and also resulted in subtle, non-significant increases in frontal plane subtalar and sagittal plane knee and hip joints moment asymmetry. CONCLUSION: We conclude that foot orthoses decrease frontal plane hip joint moment asymmetry, but have little effect on ankle and knee joint asymmetry. PMID- 29332763 TI - Fascia - The unsung hero of spine biomechanics. PMID- 29332764 TI - Pelvic musculoskeletal dysfunctions in women with and without chronic pelvic pain. AB - AIM: This study aimed to compare the prevalence of pelvic musculoskeletal dysfunctions in women with and without Chronic Pelvic Pain (CPP). MATERIALS &METHODS: A total of 84 women with and without CPP (42 in each group), participated in this cross-sectional analytical study. After collecting demographic information, clinical examinations were carried out to compare pelvic musculoskeletal dysfunctions between two groups. Kolmogorov-Smirnov (K-S) goodness-of-fit, Independent t, X2 and Pearson correlation tests were used for data analysis. Values of p < 0.05 were considered statistically significant. FINDINGS: Significant differences were found in the asymmetric iliac crest and pubic symphysis height (45.2% vs 9.5%), positive sacroiliac provocation and positive Carnett's tests (50% vs 4.8%), (p < 0.05). CPP Patients exhibited more tenderness at Levator ani, Piriformis, and Obturator Internus muscles, also higher degrees of pelvic inclination (p < 0.05). CONCLUSION: Higher frequency of pelvic musculoskeletal dysfunctions in women with CPP suggests the value of routine musculoskeletal examinations for earlier diagnosis of musculoskeletal originated CPP and effective management of these patients. PMID- 29332765 TI - Aquatic myofascial release applied after high intensity exercise increases flexibility and decreases pain. AB - OBJECTIVES: To investigate aquatic myofascial release (AMR) effects on flexibility and delayed onset muscle soreness, after high intensity exercises. STUDY DESIGN: 15 participants, control (CON) and intervention (INT), 3 moments, pre (Pre), after (Post) and 50 min after (Post 50/Post AMR). 6 exercises, 5 sets, 15 reps at 85% of 1 maximum repetition, followed, or not, by 50 min of AMR. VARIABLES: Heart rate, lactate, rate of perceived exertion, pain and flexibility. RESULTS: Pain perception decreased in all moments (CON4.47 +/- 2.36; INT1.13 +/- 1.46, p = 0.0002). Flexibility only increased for the fingertip to floor test in both phases in the Post50/Post AMR compared to Post (CON14.33 +/- 9.19Pre, 15.07 +/- 9.37Post (p = 0.7) and 12.8 +/- 4.69Post50 (p = 0.4); INT14.53 +/- 9.06Pre, 13.87 +/- 9.88Post (p = 0.2) and 11.03 +/- 8.96Post AMR (p = 0.001)). The Well's bench improved only for the Post AMR compared to Pre in the INT phase (INT24.79 +/- 9.91Pre; 27.67 +/- 9.46Post AMR p = 0.0000023). CONCLUSION: We concluded that AMR is effective to reduce pain perception and to improve flexibility of the studied population submitted to a high intense exercise session. PMID- 29332766 TI - Cognitive function in Rett syndrome: Profoundly impaired or near normal? PMID- 29332768 TI - Will a Screwdriver Work? PMID- 29332767 TI - Burn Care: Resuscitation and Respiratory Care. PMID- 29332769 TI - Articles That May Change Your Practice: Hypertonic Fluid Resuscitation in Trauma. PMID- 29332770 TI - Forum. PMID- 29332771 TI - 26th Critical Care Transport Medicine Conference. PMID- 29332772 TI - 2017 Community Awards. PMID- 29332773 TI - Does Medical Staffing Influence Perceived Safety? An International Survey on Medical Crew Models in Helicopter Emergency Medical Services. AB - OBJECTIVE: The competence, composition, and number of crewmembers have generally been considered to influence the degree of patient care and safety in helicopter emergency medical services (HEMS), but evidence to support the advantages of one crew concept over another is ambiguous; additionally, the benefit of physicians as crewmembers is still highly debated. METHODS: To compare perceived safety in different medical crew models, we surveyed international HEMS medical directors regarding the types of crew compositions their system currently used and their supportive rationales and to evaluate patient and flight safety within their services. RESULTS: Perceived patient and flight safety is higher when HEMS is staffed with a dual medical crew in the cabin. Tradition and scientific evidence are the most common reasons for the choice of medical crew. Most respondents would rather retain their current crew configuration, but some would prefer to add a physician or supplement the physician with an assistant in the cabin. CONCLUSION: Our survey shows a wide variety of medical staffing models in HEMS and indicates that these differences are mainly related to medical competencies and the availability of an assistant in the medical cabin. The responses suggest that differences in medical staffing influence perceived flight and patient safety. PMID- 29332775 TI - Development and Testing of a Neonatal Intubation Checklist for an Air Medical Transport Team. AB - OBJECTIVE: We developed a Neonatal Intubation Checklist for Airlift Northwest. Our goal was to improve the preparation, technical proficiency, and safety of neonatal intubation without increasing the time required to perform the procedure. METHODS: The Neonatal Intubation Checklist, a "call and response" checklist for neonatal intubation, was developed. Its effectiveness was evaluated during a baseline assessment and 2 practice sessions after a checklist orientation. Intubation proficiency was evaluated using a validated assessment tool that included a proficiency score, a global rating scale (GRS) score, and time to perform the procedure. RESULTS: Significant improvements in intubation proficiency and time to intubation were noted when teams used the intubation checklist (proficiency score: 29 [7] at baseline vs. 57 [1] with checklist, P < .001; GRS 2 [2, 2.5] at baseline vs. 5 [3, 5] with checklist, P < .001; baseline intubation time 626 [93] seconds vs. 479 (44) seconds with checklist, P < .001). These changes were associated with a large effect on proficiency (n2 = 0.89), GRS (n2 = 0.6), and time to successful intubation (n2 = 0.52). CONCLUSION: The use of the Neonatal Intubation Checklist improved transport team performance during simulated neonatal intubations and decreased the time required to successfully perform the procedure. PMID- 29332774 TI - An Analysis of Intoxicated Patients Transported by a Doctor Helicopter. AB - OBJECTIVE: We retrospectively investigated all of the intoxicated patients who were transported by a doctor helicopter (DH) in eastern Shizuoka between April 2004 and December 2015 to determine when air medical transport was used in cases of toxic exposure. METHODS: Subjects were divided into 2 groups: an outpatient group of subjects who went home after receiving a medical evaluation and treatment and an admission group. RESULTS: The outpatient and admission groups included 17 and 31 subjects, respectively. The ratio of dispatching the DH to the scene and the median Glasgow Coma Scale score in the outpatient group were greater, and the shock index in the outpatient group was significantly smaller than in the admission group. The duration from exposure of intoxicated agents to contact by staffs of the DH in the outpatient group was also smaller than in the admission group. CONCLUSION: The level of consciousness and shock index may be important factors dictating whether or not to dispatch the DH in order to prevent secondary damage induced by unstable circulation. PMID- 29332776 TI - Compliance With a National Standard by Norwegian Helicopter Emergency Physicians. AB - OBJECTIVE: The "National Standard Requirements for Helicopter Emergency Medicine Services Physicians" gives recommendations on medical requirements for flight physicians. This study describes the level of formal competence, experience, and guideline compliance of Norwegian helicopter emergency medical service (HEMS) physicians. METHODS: In May 2013, all HEMS physicians with full-time engagement at Norwegian HEMS bases were invited to participate in a cross-sectional survey using a structured, Web-based questionnaire. RESULTS: A total of 108 (79%) of 136 physicians replied to the survey, and all bases were represented. The majority (89%) had specialist training, and more than 60% had longer than 6 years of experience as a flight physician. Over 60% had attended trauma, pediatric, and incubator courses, and all physicians worked regularly in an anesthesia department. Most physicians were participating in simulation and procedure training. CONCLUSION: Many of the basic requirements of the guidelines were met by HEMS physicians, but room exists for improvements. Norwegian HEMS physicians are experienced, but a need exists for a more structured curriculum in emergency medicine for HEMS physicians based on the broad spectrum of presented medical conditions to ensure optimal quality of care and safety for all patients in Norway. PMID- 29332777 TI - Means for Transport in Patients After Remote Extracorporeal Membrane Oxygenation Implantation. PMID- 29332778 TI - Cricothyrotomy in Helicopter Emergency Medical Service Transport. AB - OBJECTIVE: Airway management is a requisite skill set for helicopter emergency medical service (HEMS) providers. Cricothyrotomy is a potentially lifesaving skill that is used when other airway maneuvers fail. The authors reviewed all transports by a helicopter program in which cricothyrotomy was performed to assess the frequency, success, and technique. METHODS: This was a retrospective chart review of air medical patient records from an electronic medical record system over a 112-month period. RESULTS: During the study period, 22,434 patients were transported, 13 (.057%) of whom underwent cricothyrotomy. The typical patient was a male trauma victim with a mean Glasgow Coma Score of 5 transported from an accident scene with a mean age of 34.3 years. Six (46%) of the patients were alive at 24 hours. All patients (13/100%) received attempted endotracheal intubation; the mean number of attempts per patient was 2. The success rate was 100% with all patients ventilated via cricothyrotomy. CONCLUSION: This study shows cricothyrotomy is a rarely performed skill but that HEMS providers are able to successfully learn the skill with proper training and oversight. PMID- 29332779 TI - Helicopter Emergency Medical Services Literature 2014 to 2016: Lessons and Perspectives, Part 1-Helicopter Transport for Trauma. PMID- 29332780 TI - Social Media and Integrity. PMID- 29332781 TI - Pediatric Extracorporeal Cardiopulmonary Resuscitation Patient With Traumatic Subarachnoid Hemorrhage and Takotsubo Syndrome. AB - Takotsubo syndrome is rare in pediatric patients but must be considered in patients with subarachnoid hemorrhage with pulmonary edema and cardiomyopathy. A systematic, collaborative approach is needed to facilitate emergent transfer of patients where extracorporeal cardiopulmonary resuscitation (e-CPR) is used as a lifesaving measure. Extracorporeal membrane oxygenation (ECMO) use in transport requires preplanning, role delineation, resources, and research efforts to be successful. We present an unusual transport case of successful e-CPR/ECMO treatment of Takotsubo syndrome in a 12-year-old boy with an isolated traumatic intracranial injury, cardiomyopathy with pulmonary edema, and multiple cardiac arrests. PMID- 29332782 TI - Long-Distance, Nonstop Neonatal Transport From Shanghai, China, to Genoa, Italy. AB - The purpose of this article is to describe the long-distance, nonstop intercontinental transport of a severely ill, mechanically ventilated newborn from Shanghai, China, to Genoa, Italy focusing in particular on the clinical and planning difficulties. The aircraft equipment, the assessment and preparation for transport are discussed. PMID- 29332783 TI - Out-of-Hospital Lateral Canthotomy and Cantholysis: A Case Series and Screening Tool for Identification of Orbital Compartment Syndrome. PMID- 29332784 TI - Air Transport of a Patient With Impending Cerebral Herniation From Tension Pneumocephalus. AB - Tension pneumocephalus is a rare but dangerous complication of craniotomy, sinus surgery, and traumatic cranial injury. Compared with simple pneumocephalus, which often resolves spontaneously over the course of a few days, tension pneumocephalus tends to increase with ongoing cerebrospinal fluid leak and requires immediate neurosurgical treatment to prevent cerebral herniation. Air transport of patients with tension pneumocephalus for neurosurgical care entails a risk of neurologic worsening because of changes in ambient air pressure with altitude and cabin pressurization. We describe a case in which severe symptomatic tension pneumocephalus developed after endoscopic endonasal sinus surgery in an 81-year-old man. The patient lived in a remote area and required air transport for medical care. Pretreatment with oxygen therapy and maintaining the patient in a flat supine position rapidly improved his neurologic status, allowing transportation without incidence. A recommendation was also made to the medical transport team to fly at the lowest possible altitude. Specific precautions may enable safe transport of these critically ill patients for treatment, although further data must be obtained before these can be definitively recommended. PMID- 29332785 TI - The "Squeeze," an Interesting Case of Mask Barotrauma. PMID- 29332786 TI - Recent advances and developments on integrating nanotechnology with chemiluminescence assays. AB - Chemiluminescence (CL) techniques are extensively utilized for detection of analytes due to their high sensitivity, rapidity and selectivity. With the advent of nanotechnology and incorporation of the nanoparticles in the CL system has revolutionized the assays due to their unique optical and mechanical properties. Several CL-based reactions have been developed where these nanoparticle based CL sensors have evolved as excellent prospects for sensing in various analytical applications. This review article addresses the nanoparticles based CL detection system that are recently developed, the mechanisms has been summarized and the role of luminophors have been discussed. This article critically analyzes the optimal conditions for the CL detection along with quantitative assessment of the analytes. We have included the use of semiconductor nanoparticles, metal nanoparticles, graphene based nanostructures, mesoporous nanospheres, layered double hydroxides, clays for CL detection. The scope and application of these nanoscale material based CL system in various branches of science and technology including chemistry, biomedical applications, pharmaceutics, food, environmental and toxicological applications has been critically summarized. PMID- 29332787 TI - Rapid and interference-free analysis of nine B-group vitamins in energy drinks using trilinear component modeling of liquid chromatography-mass spectrometry data. AB - The aim of the present work was to develop a rapid and interference-free method based on liquid chromatography-mass spectrometry (LC-MS) for the simultaneous determination of nine B-group vitamins in various energy drinks. A smart and green strategy that modeled the three-way data array of LC-MS with second-order calibration methods based on alternating trilinear decomposition (ATLD) and alternating penalty trilinear decomposition (APTLD) algorithms was developed. By virtue of "mathematical separation" and "second-order advantage", the proposed strategy successfully solved the co-eluted peaks and unknown interferents in LC MS analysis with the elution time less than 4.5min and simple sample preparation. Satisfactory quantitative results were obtained by the ATLD-LC-MS and APTLD-LC-MS methods for the spiked recovery assays, with the average spiked recoveries ranging from 87.2-113.9% to 92.0-111.7%, respectively. These results acquired from the proposed methods were confirmed by the LC-MS/MS method, which shows a quite good consistency with each other. All these results demonstrated that the developed chemometrics-assisted LC-MS strategy had advantages of being rapid, green, accurate and low-cost, and it could be an attractive alternative for the determination of multiple vitamins in complex food matrices, which required no laborious sample preparation, tedious condition optimization or more sophisticated instrumentations. PMID- 29332788 TI - Turn-on fluorescent sensor for the detection of glucose using manganese dioxide phenol formaldehyde resin nanocomposite. AB - Monitoring blood glucose has attracted considerable attention because diabetes mellitus is a global public health problem. Herein, we reported a turn-on fluorescence detection strategy based on manganese dioxide (MnO2)-phenol formaldehyde resin (PFR) nanocomposite for rapid, sensitive, and selective detection of glucose levels in human blood. In this biosensing system, MnO2 nanoshell on the PFR nanoparticle surfaces serve as a quencher. PFR fluorescence can make a recovery in the presence of H2O2, reducing MnO2 to Mn2+. The sensor shows a linear range from 50nM to 90MUM with a low detection limit of 20nM for H2O2 detection. Thus, the glucose can be detected on the basis of the enzymatic conversion of glucose by glucose oxidase to produce H2O2. This method exhibits a wide linear range from 5MUM to 1mM with a low detection limit of 1.5MUM. Because of the excellent photostability offered by PFR, the developed strategy has been successfully applied for the diagnosis of diabetes mellitus in human blood samples. Compared with commercial glucometer, our method showed satisfactory results, indicating the significant reliability. The developed turn-on fluorescent sensor might hold great promise in nanomedicine and bioanalysis. PMID- 29332789 TI - Mn2+-doped NaYF4:Yb,Er upconversion nanoparticles for detection of uric acid based on the Fenton reaction. AB - A novel fluorescence method for the determination of hydrogen peroxide (H2O2) and uric acid (UA) was developed. The procedure was based on the hydroxyl radicals (.OH), which effectively quenched the fluorescence of the Mn2+-doped NaYF4:Yb,Er upconversion nanoparticles (UCNPs). Based on the property of Mn2+-doped NaYF4:Yb,Er upconversion nanoparticles, the Fenton reaction and enzymatic reaction of uric acid, this method could be used for highly sensitive detection of H2O2 and uric acid. Under optimal conditions, we observed that the fluorescence quenching signal showed good linearity with the H2O2 concentration in the range of 3.00*10-8 M ~ 6.00*10-5 M, and the detection limit of this assay was 1.30*10-8 M. Meanwhile, the linear concentration range for UA was 4.00*10-9 M ~ 1.00*10-5 M, and the lower limit of detection was 1.90*10-9 M. Furthermore, the developed method was successfully used for the determination of UA levels in human serum with satisfactory results. PMID- 29332790 TI - Ultrasensitive electrochemical detection of poly (ADP-ribose) polymerase-1 via polyaniline deposition. AB - Recent findings have thrust poly ADP (ADP: adenosine diphosphate)-ribose polymerase-1 (PARP-1) into the limelight as potential chemotherapeutic target because it is closely related to the development of tumor. So, studies on its detection and inhibitors evaluation have attracted more attention. It is interesting that poly (ADP-ribose) (PAR), the catalytic product of PARP-1 in the existence of nicotinamide adenine dinucleotide (NAD+), possess twice charge density of DNA strands. PAR contain 200 units, i.e., about 400bp bases, and multiple branched strands. So, plentiful negative charges on PAR supplied exquisite environment for PANI deposition, which was triggered by horseradish peroxidase (HRP). Because of the unique electrochemical property of PANI, ultrasensitive electrochemical detection of PARP-1 was proposed. Under optimum conditions, DPV intensity linearly increased with the increment of PARP-1 in the range of 0.005-1.0 U. The detection limit was 0.002 U, which was comparable or more sensitive than that obtained from previously reported strategies. PMID- 29332791 TI - Highly sensitive and reproducible non-enzymatic glucose sensor fabricated by drop casting novel nanocomposite with 3D architecture and tailorable properties prepared in controllable way. AB - Novel nanocomposite has tailorable properties and ordered 3D architecture similar to the structure of materials prepared by electrodeposition which is convenient and efficient but the reproducibility is limited because of the uncontrollable preparation process, was scientifically synthetized in controllable way and used for non-enzymatic glucose sensor for the first time. Flower-like alpha-Ni(OH)2 with high specific surface areas and good anion transport ability benefited from its distinctive stacking faults and turbostratic disorder structure was synthesized through facile one-step hydrothermal method. Oversaturated gold nanoparticles (AuNPs) have been innovatively decorated on flower-like alpha Ni(OH)2 to improve the electrical conductivity, in turn, AuNPs would possess the higher catalytic activity when supported on Ni(OH)2, so the resultant AuNPs decorated alpha-Ni(OH)2 (AuNPs@alpha-Ni(OH)2) also has excellent synergistic catalytic effect and improved selectivity. On this basis, beta-cyclodextrins functionalized reduced graphene oxide (beta-rGO) with enhanced dispersivity was scientifically added at optimized proportion to reduce the interparticle resistance of AuNPs@alpha-Ni(OH)2 as 2D electron transport channels, and to improve film-forming ability of the obtained nanocomposite via forming stable 3D network structure. Non-enzymatic glucose sensor fabricated through drop-casting the prepared nanocomposite on glass carbon electrode has high sensitivity up to 559.314MUAmM-1cm-2 over the low concentration range and 327.199MUAmM-1cm-2 over the higher concentration range, comparable to the sensors modified by electrodeposition method, indicating that prepared nanocomposite with controlling nanoscale composition and architectures based on rational design is an effective strategy to construct electrochemical sensor with excellent performance. PMID- 29332792 TI - Silver ions enhanced AuNCs fluorescence as a turn-off nanoprobe for ultrasensitive detection of iodide. AB - Fluorescence nanoprobes are frequently employed to construct sensitive biosensors via turn-on and turn-off strategy. In this paper, a novel strategy for ultrasensitive detection of iodide was firstly constructed based on Ag+ regulated photoluminescence enhancement of gold nanoclusters (AuNCs) as a turn-off nanoplatform. In the presence of Ag+, the fluorescence (FL) intensity of AuNCs can be enhanced obviously. When adding iodide ions (I-) in the Ag+-AuNCs, Ag+ can be pulled down from AuNCs and results in quenching of the fluorescent effectively owing to the combination between Ag+ and I-. Compared with that of I- directly reaction with AuNCs, the introducing of Ag+ shows improved quenching efficiency from 32% to 66% since I- can react with Ag+ as well as AuNCs. Therefore, the platform could be applied to assay Ag+ and I-, on the basis of the FL enhancement and the further FL quenching. The detection ranges and detection limits were 0.2 12MUM and 0.06MUM for Ag+, 0.001-6MUM and 0.3nM for I-, respectively. The new sensing method based on ion regulation to enhance the detection sensitivity can extend to the appliance of other fluorescent materials in biosensing and biomedical field. PMID- 29332793 TI - Label-free detection of histone based on cationic conjugated polymer-mediated fluorescence resonance energy transfer. AB - A simple and homogeneous histone assay is developed based on histone-induced DNA compressing coupled with cationic conjugated polymer (CCP)-mediated fluorescence resonance energy transfer (FRET). In this strategy, the CCP serves as the FRET donor and SYBR Green I (SG), which can strongly fluoresce not at its free state but after intercalated into the double stranded calf thymus DNA (dsDNA), serves as the acceptor of FRET. In the absence of histone, the dsDNA-SG and CCP combine with each other through electrostatic interaction and the strong FRET from CCP to SG occurs due to the overlapping between the fluorescent emitting spectrum of the CCP and the absorption spectrum of SG. Upon the introduction of histone, the formed compact complex of histone/dsDNA will lead to the compression of dsDNA structure and prevent SG binding to dsDNA and fluorescing, which gives rise to a significant decrease of FRET efficiency between CCP and SG. Thus, the quantitative analysis of histone is realized by monitoring the change of FRET ratio, namely, the intensity ratio of the two emission bands of CCP and SG. Due to the light harvesting and fluorescence amplification properties of CCP, high sensitivity is achieved with a low detection limit of 0.74ng/mL histone. This strategy provides a simple, homogeneous and sensitive strategy for histone analysis in the study of histone-related biological processes. PMID- 29332794 TI - A sensitive SPR biosensor based on hollow gold nanospheres and improved sandwich assay with PDA-Ag@Fe3O4/rGO. AB - A novel surface plasmon resonance (SPR) biosensor based on hollow gold nanospheres (HGNPs) and an improved sandwich assay was developed to detect rabbit IgG. The electromagnetic coupling between the HGNPs and Au film, and the notable plasmonic fields spread over the inner and outer surfaces of HGNPs, led to the considerable amplification of the SPR signal. Polydopamine-Ag@Fe3O4/reduced graphene oxide (PDA-Ag@Fe3O4/rGO) was introduced to bind detection antibody (Ab2) to form the improved sandwich structure. Ag nanoparticles were excited to produce SPR and their hot electrons were doped on graphene thin films, which amplified the response of biomolecules. Magnetic nanoparticles (Fe3O4) simplified the collection of Ab2-PDA-Ag@Fe3O4/rGO. An external layer of polydopamine (PDA) permitted the efficient immobilization of Ab2 without activation via abundant functional groups and protected the nanoparticles from etching or agglomeration. In addition, because of its large mass, Ab2-PDA-Ag@Fe3O4/rGO also played a key role in the further amplification of the SPR response signals. This novel SPR biosensor exhibited an effective response to the rabbit IgG at the different concentrations ranging from 0.019 to 40.00MUgmL-1. This value is 132 times lower than that observed for a traditional SPR biosensor based on Au-3 mercaptopropionic acid and 8 times lower than that obtained from an Ab2 sandwich assay, which indicates that the SPR sensor has high sensitivity. In addition, the designed biosensor showed satisfactory recoveries to detect the rabbit IgG spiked in serum samples. Therefore, the novel SPR biosensor with high sensitivity and acceptable recovery has potential for practical applications. PMID- 29332795 TI - Polymer-based materials modified with magnetite nanoparticles for enrichment of phospholipids. AB - A polymeric material modified with magnetic nanoparticles (MNPs) has been synthesized and evaluated as sorbent both for solid-phase extraction (SPE) and dispersive magnetic solid-phase extraction (MSPE) of phospholipids (PLs) in human milk samples. The synthesized sorbent was characterized by scanning electron microscopy and its iron content was also determined. Several experimental variables that affect the extraction performance (e.g. loading solvent, breakthrough volume and loading capacity) were investigated and a comparison between conventional SPE and MSPE modalities was done. The proposed method was satisfactorily applied to the analysis of PLs in human milk fat extracts in different lactation stages and the extracted PLs were determined by means of hydrophilic interaction liquid chromatography using evaporative light scattering detection. PMID- 29332796 TI - Direct olive oil analysis by mass spectrometry: A comparison of different ambient ionization methods. AB - Analytical methods based on ambient ionization mass spectrometry (AIMS) combine the classic outstanding performance of mass spectrometry in terms of sensitivity and selectivity along with convenient features related to the lack of sample workup required. In this work, the performance of different mass spectrometry based methods has been assessed for the direct analyses of virgin olive oil for quality purposes. Two sets of experiments have been setup: (1) direct analysis of untreated olive oil using AIMS methods such as Low-Temperature Plasma Mass Spectrometry (LTP-MS) or paper spray mass spectrometry (PS-MS); or alternatively (2) the use of atmospheric pressure ionization (API) mass spectrometry by direct infusion of a diluted sample through either atmospheric pressure chemical ionization (APCI) or electrospray (ESI) ionization sources. The second strategy involved a minimum sample work-up consisting of a simple olive oil dilution (from 1:10 to 1:1000) with appropriate solvents, which originated critical carry over effects in ESI, making unreliable its use in routine; thus, ESI required the use of a liquid-liquid extraction to shift the measurement towards a specific part of the composition of the edible oil (i.e. polyphenol rich fraction or lipid/fatty acid profile). On the other hand, LTP-MS enabled direct undiluted mass analysis of olive oil. The use of PS-MS provided additional advantages such as an extended ionization coverage/molecular weight range (compared to LTP-MS) and the possibility to increase the ionization efficiency towards nonpolar compounds such as squalene through the formation of Ag+ adducts with carbon-carbon double bounds, an attractive feature to discriminate between oils with different degree of unsaturation. PMID- 29332797 TI - Electrodialytic in-line preconcentration for ionic solute analysis. AB - Preconcentration is an effective way to improve analytical sensitivity. Many types of methods are used for enrichment of ionic solute analytes. However, current methods are batchwise and include procedures such as trapping and elution. In this manuscript, we propose in-line electrodialytic enrichment of ionic solutes. The method can enrich ionic solutes within seconds by quantitative transfer of analytes from the sample solution to the acceptor solution under an electric field. Because of quantitative ion transfer, the enrichment factor (the ratio of the concentration in the sample and to that in the obtained acceptor solution) only depends on the flow rate ratio of the sample solution to the acceptor solution. The ratios of the concentrations and flow rates are equal for ratios up to 70, 20, and 70 for the tested ionic solutes of inorganic cations, inorganic anions, and heavy metal ions, respectively. The sensitivity of ionic solute determinations is also improved based on the enrichment factor. The method can also simultaneously achieve matrix isolation and enrichment. The method was successively applied to determine the concentrations of trace amounts of chloroacetic acids in tap water. The regulated concentration levels cannot be determined by conventional high-performance liquid chromatography with ultraviolet detection (HPLC-UV) without enrichment. However, enrichment with the present method is effective for determination of tap water quality by improving the limits of detection of HPLC-UV. The standard addition test with real tap water samples shows good recoveries (94.9-109.6%). PMID- 29332798 TI - Supported carbon dots serve as high-performance adsorbent for the retention of trace cadmium. AB - Carbon dots were prepared via a one-pot hydrothermal route, and a new solid-phase extraction (SPE) adsorbent was developed by immobilizing the carbon dots on the microcarrier cytopore, shortly termed as C-dots@cytopore. The C-dots@cytopore composites were characterized by means of FT-IR, SEM, XPS and fluorescence spectrometry. The performance of the composites for the adsorption of heavy metals was thoroughly evaluated by using cadmium as a model. The binding of cadmium on C-dots@cytopore fits Langmuir adsorption, and the adsorption dynamic follows pseudo-second-order adsorption kinetics model. The binding of cadmium was pH-dependent, with a maximum adsorption capacity of 2420MUgg-1 obtained at pH 4 7. A novel separation and preconcentration procedure was thus developed for trace cadmium using the C-dots@cytopore composites as SPE sorbent. The retained cadmium could be readily eluted and recovered by a 0.1molL-1 HNO3 solution and further quantified with graphite furnace atomic absorption spectrometry (GFAAS). With a sample volume of 1.0mL, an enrichment factor of 17.85 was obtained with a detection limit of 1.8ngL-1 and a RSD value of 2.6% at 0.1MUgL-1 (n = 9). The procedure was further validated by analyzing cadmium in certified reference materials and a series of environmental water samples. PMID- 29332800 TI - Acidity of substituted cathinones studied by capillary electrophoresis using the standard and fast alternative approaches. AB - Cathinone derivatives are notorious but still weakly characterized molecules, known mainly as components of the designer and illicit drugs. The knowledge on their acidity is scarce and incomplete, therefore, we decided to determine the pKa values for six of them: 2-methylmethcathinone, 3-methylmethcathinone, 4 methylmethcathinone, alpha-pyrrolidinovalerophenone, methylenedioxypyrovalerone and ephedrone. For that purpose we employed capillary electrophoresis, which is known for its accurateness in comparison to other analytical techniques. We used and compared two methodologically different approaches. The standard method relied on measuring electrophoretic mobility across the broad pH range and fitting the sigmoidal function. The obtained pKa values were in the range 8.59 9.10, thus these molecules remain mostly protonated and positively ionized in the physiological conditions. The alternative two-values (TVM) and one-value methods (OVM), proposed by us previously, have been used herein for the first time to the cationic molecules. TVM enables estimation of pKa using only two electrophoretic mobility values, referring to the total and partial ionization. OVM requires only a single measurement because mobility of ion is predicted theoretically. Both TVM and OVM yielded only a small deviation of pKa from the standard approach, averagely 0.07-0.09pH unit. Two important issues have also been addressed: the potential of a maximally fast calculation method using no repetition at the given pH, and the accuracy of method with regard to pH attributed to partial ionization. As a whole, the analytical potential of the TVM/OVM approach seems to be huge and invaluable for fast pKa screening/estimation. PMID- 29332799 TI - Rapid identification of regulated organic chemical compounds in toys using ambient ionization and a miniature mass spectrometry system. AB - Rapid, on-site analysis was achieved through significantly simplified operation procedures for a wide variety of toy samples (crayon, temporary tattoo sticker, finger paint, modeling clay, and bubble solution) using a miniature mass spectrometry system with ambient ionization capability. The labor-intensive analytical protocols involving sample workup and chemical separation, traditionally required for MS-based analysis, were replaced by direct sampling analysis using ambient ionization methods. A Mini beta ion trap miniature mass spectrometer was coupled with versatile ambient ionization methods, e.g. paper spray, extraction spray and slug-flow microextraction nanoESI for direct identification of prohibited colorants, carcinogenic primary aromatic amines, allergenic fragrances, preservatives and plasticizers from raw toy samples. The use of paper substrates coated with Co3O4 nanoparticles allowed a great increase in sensitivity for paper spray. Limits of detection as low as 5MUgkg-1 were obtained for target analytes. The methods being developed based on the integration of ambient ionization with miniature mass spectrometer represent alternatives to current in-lab MS analysis operation, and would enable fast, outside-the-lab screening of toy products to ensure children's safety and health. PMID- 29332801 TI - A highly selective, colorimetric and ratiometric fluorescent probe for NH2NH2 and its bioimaging. AB - In this work, we report a novel approach which employed substrate-triggered intramolecular addition-cyclization cascade to develop a highly selective fluorescent probe E)-3-(4-(1H-phenanthro[9,10-d]imidazol-2-yl)phenyl)-1-(2 hydroxylphenyl) prop-2-en-1-one (P-OH) for NH2NH2. The new sensing mechanism of P OH for NH2NH2 was investigated in detail by fluorescence spectroscopy, 1H NMR titration, mass spectrometry and control experiments. The synthesized probe showed ratiometric fluorescent response to NH2NH2 with naked-eye color changes from yellow to colorless. It's noteworthy that this probe displayed high sensitivity and selectivity to NH2NH2 over other species, including primary amines, Cys, Hcy, GSH, HS- and HSO3-. Furthermore, the probe can not only detect NH2NH2 in real water samples but also image NH2NH2 in living cells, indicating its potential utility for NH2NH2 sensing in environmental and biological samples. PMID- 29332802 TI - Total alpha1-acid glycoprotein determination in serum samples using disposable screen-printed electrodes and osmium (VI) as electrochemical tag. AB - Alpha-1-acid glycoprotein (AGP) or Orosomucoid is a serum glycoprotein which belongs to the group of acute phase proteins. It is a potential biomarker for inflammatory bowel diseases. In this sense, there is a need for developing fast and cheap analytical methods for diagnosis, prognosis and follow-up of these diseases. In this work, we propose a simple and cheap electrochemical method for total AGP determination using disposable carbon screen-printed electrodes (SPE) and using a selective acidic precipitation of the rest of proteins. This method avoids the use of biological components, decreasing dramatically the analysis cost. Firstly, AGP is labeled with an electrochemical tag (osmium (VI) complex) and then the total amount of AGP is quantified by adsorptive transfer stripping square wave voltammetry. The method optimized showed a good linear correlation (r = 0.9992) and limit of detection of 1.6mgl-1. The methodology was successfully applied to quantify AGP in a commercial serum sample. This methodology could be useful in clinical diagnosis because of AGP levels increase two or three times when inflammatory processes happen. Moreover, the inherent advantages of SPE technology (low sample consumption, low cost and point of care testing) make this methodology very attractive in this field. PMID- 29332803 TI - Particle-based immobilized enzymatic reactors in microfluidic chips. AB - The research and applications of immobilized enzyme reactors (IMERs) have become more and more widespread due to the numerous advantages like reusability, easy handling, prolonged lifetime, easy separation from products and substrate specificity. The miniaturized form of these reactors (microchip IMERs) received outstanding attention due to their special features and advantages over the traditional, larger analytical systems. Large specific surface is essential for the efficient operation of the microreactors, thus these devices include one of the several types of porous solid supports, but in this work only the particle based microchip IMERs are reviewed. A very large variety of micro- or nanoparticles (beads) have been used in the microchip IMERs, however, incorporating these particles into microchips is still a challenge, because the common procedures used for the preparation of chromatographic columns are not well applicable at the microscopic level. Many detection systems were applied with microchip IMERs using on-chip or off-chip arrangement. The combination of microchip IMERs with mass spectrometry is particularly popular, because in these systems high-throughput analysis can be achieved by which the proteomic studies can be largely accelerated. In most chip IMER-MS systems, the chips are used for sample pretreatment including analyte (protein) digestion, preconcentration of analyte, removal of matrix materials. Additional applications of the IMERs - like the rapid protein digestion with proteolytic enzymes, the transformation of analytes to a more easily or more sensitively measurable form (detection signal amplification) and the design of microarrays/biosensors to analyze antigens based on specific interactions in immunoanalytical studies - are also reviewed. PMID- 29332804 TI - Effect of preprocessing high-resolution mass spectra on the pattern recognition of Cannabis, hemp, and liquor. AB - High-resolution mass spectrometry (HRMS) combined with pattern recognition was used to discriminate among twenty-five Cannabis samples, twenty hemp samples, and eight liquor samples. The effects of preprocessing on multivariate data analysis were evaluated for Orbitrap high-resolution mass spectra. Different root transformations were evaluated with respect to the bin width and the average classification rates. In addition, linear binning and proportional binning with various resolving powers were studied with respect to the average classification rates. The proportional binning with the square root transformation gave the best overall performance for chemical profiling or spectral fingerprinting. Six classification methods, fuzzy rule-building expert system (FuRES), linear discriminant analysis (LDA), super partial least squares discriminant analysis (sPLS-DA), support vector machine (SVM), SVM classification tree type gap (SVMTreeG), and SVM classification tree type entropy (SVMTreeH) had similar trends in prediction rate with respect to the resolving power. The optimal proportional mass bin width may depend on the data set, i.e., for the Cannabis samples is resolving power 10-4, for the hemp samples and the liquor samples are resolving power 10-3. Hence, data preprocessing methods such as different transformations, binning strategies, and resolving powers are important factors to be optimized for HRMS direct infusion measurements combined with pattern recognition to be an authentication and characterization tool for various products. PMID- 29332805 TI - Trends of non-destructive analytical methods for identification of biodiesel feedstock in diesel-biodiesel blend according to European Commission Directive 2012/0288/EC and detecting diesel-biodiesel blend adulteration: A brief review. AB - Discrimination of biodiesel feedstock present in diesel-biodiesel blend is challenging due to the great similarity in the spectral profile as well as digital image profile of each type of feedstock employed in biodiesel production. Once the marketed diesel-biodiesel blend is subsidized, in which motivates adulteration in biofuel blend by cheaper supplies with high solubility to obtain profits associated with the subsidies involved in biodiesel production. Non destructive analytical methods based on qualitative and quantitative analysis for detecting marketed diesel-biodiesel blend adulteration are reviewed. Therefore, at the end is discussed the advantage of the qualitative analysis over quantitative analysis, when the systems require immediate decisions such as to know if the marketed diesel-biodiesel blend is unadulterated or adulterated in order to aid the analyst in selecting the most appropriate green analytical procedure for detecting diesel-biodiesel blend adulteration proceeding in fast way. This critical review provides a brief review on the non-destructive analytical methods reported in scientific literature based on different first order multivariate calibration models coupled with spectroscopy data and digital image data to identify the type of biodiesel feedstock present in diesel biodiesel blend in order to meets the strategies adopted by European Commission Directive 2012/0288/EC as well as to monitoring diesel-biodiesel adulteration. According to that Directive, from 2020 biodiesel produced from first-generation feedstock, that is, oils employed in human food such as sunflower, soybean, rapeseed, palm oil, among other oils should not be subsidized. Therefore, those non-destructive analytical methods here reviewed are helpful for discrimination of biodiesel feedstock present in diesel-biodiesel blend according to European Commission Directive 2012/0288/EC as well as for detecting diesel-biodiesel blend adulteration. PMID- 29332806 TI - Defects regulating of graphene ink for electrochemical determination of ascorbic acid, dopamine and uric acid. AB - A simple water immersing treatment has been established for regulating the electrocatalytic activity of commercial graphene ink. This process enables to remove additives in graphene ink and consequently expose the surface defects. A graphene ink coated glass has been fabricated as an example platform for simultaneous determination of ascorbic acid (AA), dopamine (DA), and uric acid (UA). Cyclic voltammetry studied indicated electrocatalytic reaction can be initiated after the additives leaching during the water immersing treatment. Under optimal conditions, the linear calibration curves were achieved in the range of 50-1000, 3-140, and 0.5-150MUM, with detection limits of 17.8, 1.44 and 0.29MUM for AA, DA, and UA, respectively. This work demonstrated that the removal of additives of the graphene ink after film coating could be applied as a simple and cost-effective electrochemical platform for sensing application. PMID- 29332807 TI - Preliminary survey of matrix effects in the Microwave-sustained, Inductively Coupled Atmospheric-pressure Plasma (MICAP). AB - Matrix effects caused by Na and Al in the nitrogen Microwave-sustained, Inductively Coupled, Atmospheric-pressure Plasma (MICAP) were investigated. Easily ionizable elements, such as Na, can suppress or enhance the analyte signal; Al is shown here to produce a similar effect. The influence of these matrices was examined for 18 emission lines of 8 analyte atoms and ions having a wide range of excitation and ionization energies. The plasma operating conditions were fixed during all experiments at a total nitrogen flow of 19.4Lmin-1 and a microwave power of 1.5kW. An Fe solution was used to determine the excitation temperature of the plasma by the Boltzmann plot method at selected matrix concentrations. In addition, vertical emission profiles of the plasma were measured. The matrix effect becomes worse at higher concentrations of an easily ionizable element. The effect is caused not only by a shift in ionization equilibrium but also by a possible change in plasma ionization temperature. Correction methods to reduce the matrix effects were tested and are discussed. PMID- 29332808 TI - A polyethyleneimine-modified attapulgite as a novel solid support in matrix solid phase dispersion for the extraction of cadmium traces in seafood products. AB - In current study, a new polyethyleneimine (PEI)-modified attapulgite material was prepared serving as a solid support in matrix solid-phase dispersion for the extraction and determination (by atomic absorption spectrometry) of cadmium in seafood products. The major factors affecting PEI grafting were optimized using various PEI amounts and molecular weights. Parameters pivotal to MSPD extraction efficiency, like: pH, volume of eluting solvent, and the sorbent mass-to-sample ratio were investigated. Quantitative recoveries were achieved with 0.21g of fish sample, 0.13g of PEI-modified attapulgite dispersing agent, and 50% HNO3 eluting solution. The limit of detection and the limit of quantification were found to be 2.5 and 8.3MUgkg-1 for cadmium in surimi samples, respectively. The recoveries were in the range of 89.2-100.1%, with RSDs ranged from 3.0% to 7.9% (n = 5). When compared to the method stipulated by the Chinese National Standard GB 5009.15-2014, the newly developed MSPD provides comparable accuracy and even better repeatability for the analysis of the cadmium in real seafood samples. PMID- 29332809 TI - Peroxidase-catalyzed chemiluminescence system and its application in immunoassay. AB - Peroxidases are widely used as catalysts in chemiluminescence (CL) reaction because of their excellent catalytic activity and various selectable species, such as horseradish peroxidase (HRP), sweet potato peroxidase (SPP) and soybean peroxidase (SbP). They have been employed in many different CL systems for the determination of hydrogen peroxidase (H2O2), nucleic acid, protein and so on. In this paper, the application of peroxidases in the most commonly used luminol-H2O2 CL system was reviewed from two aspects of horseradish peroxidase (HRP) and some anionic peroxidases. Thereinto, some enhancers used into HRP-catalyzed luminol H2O2 CL system for higher sensitivity and lower detection limit were discussed according to their classification. The employment of some anionic peroxidases such as SPP and SbP in luminol-H2O2 CL system was also presented. The addition of some specific enhancers into anionic peroxidase catalyzed luminol-H2O2 system could lead to an increased light intensity and a relatively long-term stable signal. The mechanism of all these enhanced luminol-H2O2 CL reaction and the foundation of their analytical application were provided and reviewed in detail. Finally, combined with the magnetic beads or nanoparticles as well as other technologies, the characteristics of peroxidase-based luminol-H2O2 CL system were summarized. PMID- 29332810 TI - Sensitive fluorescence sensing of T4 polynucleotide kinase activity and inhibition based on DNA/polydopamine nanospheres platform. AB - 5'-Polynucleotide kinase (PNK) is a crucial enzyme that catalyzes the phosphorylation of nucleic acid with 5'-OH termini and this phosphorylation reaction has been involved in many important cellular activities. The evaluation of PNK activity has received an increasing attention due to the significance of PNK. Here, the polydopamine nanospheres (PDANS) could adsorb single-stranded DNA (ssDNA) through pi-pi stacking or hydrogen bonding between nucleobases and aromatic groups of PDANS, while the interaction between double-stranded DNA (dsDNA) with PDANS was weakened due to the changed conformation. Hence, a novel DNA/PDANS platform was constructed for the sensitive and selective determination of T4 PNK activity based on the preferential binding properties of PDANS for ssDNA over dsDNA and the excellent fluorescence quenching property of PDANS. The dye-labeled dsDNA was phosphorylated by T4 PNK and then digested by lambda exonuclease, yielding dye-labeled ssDNA, which would be adsorbed on the surface of the PDANS and the fluorescence was greatly quenched by PDANS. Because of the preferential binding properties of PDANS for ssDNA over dsDNA and the high quenching property of PDANS, the developed DNA/PDANS platform exhibited good analytical performance for T4 PNK sensing in complex biological matrix and applied to screening inhibitors. The proposed DNA/PDANS based platform is promising in developing high-throughput assays for drug screening and clinical diagnostics. PMID- 29332811 TI - Manufacture and application of RuO2 solid-state metal-oxide pH sensor to common beverages. AB - A new reproducible solid-state metal-oxide pH sensor for beverage quality monitoring is developed and characterised. The working electrode of the developed pH sensor is based on the use of laser-etched sputter-deposited RuO2 on Al2O3 substrate, modified with thin layers of sputter-deposited Ta2O5 and drop-cast Nafion for minimisation of redox interference. The reference electrode is manufactured by further modifying a working electrode with a porous polyvinyl butyral layer loaded with fumed SiO2. The developed pH sensor shows excellent performance when applied to a selection of beverage samples, with a measured accuracy within 0.08 pH of a commercial glass pH sensor. PMID- 29332812 TI - Thrombodynamics, a new global coagulation test: Measurement of heparin efficiency. AB - The actual coagulation status may be reliably measured using only highly sensitive global functional tests; however, they are not numerous and all of them have disadvantages. Thrombodynamics (TD), a novel global coagulation test, is sensitive to hypo- and hypercoagulable states. The main properties of this test were investigated, and its capabilities for hemostasis analysis were verified through pharmacodynamic monitoring of the most widely used anticoagulants, heparins. The anticoagulant effects in the plasma of donors (n = 20) and patients after hip replacement (n = 20) spiked with unfractionated heparin or enoxaparin were measured in vitro to eliminate the influence of pharmacokinetic factors. Sensitivity for heparins was compared for activated partial thromboplastin time, thrombin generation tests and TD. TD was shown to reliably characterize the pharmacodynamics of any heparin in the entire range of its prophylactic and therapeutic concentrations. Inter-individual variability for the anticoagulant action of heparins was also calculated using the TD data. This variability did not differ between the investigated groups and did not exceed 12% and 20% for the stationary clot growth rate in the presence of unfractionated heparin and enoxaparin, respectively. That finding was in accordance with the values determined earlier using the thrombin generation test. The study results showed that TD has advantages over the other global methods of coagulation analysis. These advantages are good standardization, high reproducibility, independence of the parameter values from patient age and gender, and a narrower parameter distribution in a normal population. These results indicate that TD is a promising universal assessment method that improves the quality of hemostasis analysis because it more reliably detects deviations from the parameters' reference values. PMID- 29332813 TI - Fast and easy extraction of antidepressants from whole blood using ionic liquids as extraction solvent. AB - This study aims to prove that ionic liquids (ILs) can be used as extraction solvents in a liquid-liquid microextraction, coupled to LC-MS/MS, for the quantification of a large group of antidepressants in whole blood samples. The sample preparation procedure consisted of adding 1.0mL aqueous buffer pH 3.0 and 60uL of IL (1-butyl-3-methylimidazolium hexafluorophosphate) to 1.0mL whole blood. Subsequently, a 5-min rotary mixing step was performed followed by centrifugation. The lower IL phase was collected, diluted 1:10 in methanol and 10uL was injected into the LC-MS/MS. The following analytes were included in the full-quantitative method: agomelatine, amitriptyline, bupropion, clomipramine, dosulepin, doxepin, duloxetine, escitalopram, fluoxetine, imipramine, maprotiline, mianserin, mirtazapine, nortriptyline, paroxetine, reboxetine, trazodone and venlafaxine. Selectivity was checked for 10 different whole blood matrices. Additionally, possible interferences of deuterated standards or other antidepressants were evaluated. Overall, no interferences were found. For each analyte a matrix-matched calibration curve was constructed (7 levels, n = 6), covering therapeutic and low toxic concentrations. Accuracy and precision were evaluated over eight days, at three concentration levels (n = 2). Bias, repeatability and intermediate precision results met with the proposed validation criteria, except for fluvoxamine, which was therefore only included in the semi quantitative method. LOQs were set at the lowest calibrator concentration and LOD values were - for most analytes - within a range of 1-2ng/mL. Recoveries (RE) and matrix effects (ME) were evaluated for five types of donor whole blood, at two concentration levels. RE values were within a range of 53.11-132.98%. ME values were within a range of 61.92-123.24%. In conclusion, this study proves the applicability of ILs as extraction solvents for a large group of antidepressants in complex whole blood matrices. PMID- 29332814 TI - Novel S, N-doped carbon quantum dot-based "off-on" fluorescent sensor for silver ion and cysteine. AB - In this work, sulfur and nitrogen co-doped carbon dots (S,N-CQDs) as highly selective fluorescent probe for silver ion (Ag+) and cysteine (Cys) detection were designed and synthesized directly from citric acid and thiamine hydrochloride via a one-step hydrothermal protocol in 63.8% quantum yield. This probe enabled selective detection of Ag+ with a linear range of 0-10 and 10 250MUM and a limit of detection of 0.40MUM with respect to the variation in fluorescence induced by target concentration and electron-transfer from S,N-CQDs to Ag+. Furthermore, S,N-CQDs/Ag+ fluorescence can be effectively recovered by virtue of a specific reaction of Cys with silver ion. This fluorescence "turn-on" protocol was applied to determine Cys with two linear ranges of 0-10 and 10 120MUM as well as a detection limit of 0.35MUM. The corresponding cell experiments were also performed, indicating that the prepared S,N-CQDs possessed low cytotoxicity and good biocompatibility. Ultimately, the practicality and viability of this fluorescent probe were demonstrated through the analysis of silver ion in real river water and human serum samples. PMID- 29332815 TI - Single particle analysis of TiO2 in candy products using triple quadrupole ICP MS. AB - Titanium dioxide (TiO2) belongs to the materials that have gained great importance in many applications. In its particulate form (micro- or nanoparticles), it has entered a huge number of consumer products and food-grade TiO2, better known as E171 within the European Union, represents an important food additive. Thus, there is an increasing need for analytical methods able to detect and quantify such particles. In this regard, inductively coupled-mass spectrometry (ICP-MS), in particular single particle ICP-MS (spICP-MS), has gained importance due to its simplicity and ease of use. Nevertheless, the number of applications for Ti nanoparticles is rather limited. In this study, we have applied the spICP-MS strategy by comparing different measuring modes available in triple quadrupole ICP-MS. First, single quadrupole mode using the collision/reaction cell system was selected for monitoring the isotope 47Ti. Different cell gases like He, O2 and NH3 were tested under optimised conditions for its applicability in spICP-MS of standard suspensions of TiO2. The determined analytical figures of merit were compared to those obtained by triple quadrupole mode using the 47Ti or 48Ti reaction products using O2 and NH3 as reaction gases. This comparison demonstrated that the triple quadrupole mode (TQ mode) was superior in terms of sensitivity due to the more efficient removal of spectral interferences. Particle size detection limits down to 26nm were obtained using the best instrumental conditions for TiO2 particles at a dwell time of 10ms. Finally, the different measuring modes were applied to the analysis of chewing gum samples after a simple extraction procedure using an ultrasonic bath. The obtained results showed a good agreement for the detected particle size range using the different TQ modes. The size range of TiO2 particles was determined to be between approximately 30 and 200nm, whereas roughly 40% of the particles were smaller than 100nm. For the determination of the particle number concentration in these real samples, we suggest CeO2 particles as internal standard. PMID- 29332816 TI - Comparative enzymatic studies using ion-selective electrodes. The case of cholinesterases. AB - The application of traditional ion-selective electrodes for comparative enzymatic analysis was demonstrated for the first time in this study. A kinetic potentiometric method based on the monitoring of the concentration of the ionic substrate involved in the enzymatic reaction catalyzed by different cholinesterases is used for this purpose. A comparative study was performed comprising both enzymatic assays using different ionic substrates and the corresponding inhibited reactions in presence of neostigmine (a synthetic anticholinesterase). The developed approach is used to obtain valuable comparative results through calculation of kinetic parameters, such as Michaelis and inhibition constants. Interesting results were obtained for acetylcholinesterase and butyrylcholinesterase enzymes, which were selected as proof-of-concept: (i) the binding affinity that these enzymes have for their natural substrates showed to be higher (acetylcholine and butyrylcholine respectively) than for their corresponding thiol derivatives (acetylthiocholine and butyrylthiocholine), which are traditionally used in spectrophotometric enzymatic assays; (ii) as expected, the maximum hydrolysis rate found in the assays of each enzyme was independent of the substrate used; (iii) acetylcholinesterase enzyme inhibition due to neostigmine was found to be higher (higher inhibition constant). Advantageously, the use of ion-selective electrodes permits to perform cholinesterases' enzymatic assays using their natural substrates and under physiological conditions, unlike the traditional spectrophotometric methods used in routine enzymatic assays. Importantly, while well-known enzymes are use throughout this work, this approach can be extended to other types of enzymatic assays as a tangible alternative to traditional spectrophotometric methods. PMID- 29332817 TI - Miniaturised electrically actuated high pressure injection valve for portable capillary liquid chromatography. AB - A miniaturised high pressure 6-port injection valve has been designed and evaluated for its performance in order to facilitate the development of portable capillary high performance liquid chromatography (HPLC). The electrically actuated valve features a very small size (65 * 19 * 19mm) and light weight (33g), and therefore can be easily integrated in a miniaturised modular capillary LC system suited for portable field analysis. The internal volume of the injection valve was determined as 98 nL. The novel conical shape of the stator and rotor and the spring-loaded rotor performed well up to 32MPa (4641psi), the maximum operating pressure investigated. Suitability for application was demonstrated using a miniaturised capillary LC system applied to the chromatographic separation of a mixture of biogenic amines and common cations. The RSD (relative standard deviation) values of retention times and peak areas of 6 successive runs were 0.5-0.7% and 1.8-2.8% for the separation of biogenic amines, respectively, and 0.1-0.2% and 2.1-3.0% for the separation of cations, respectively. This performance was comparable with bench-top HPLC systems thus demonstrating the applicability of the valve for use in portable and miniaturised capillary HPLC systems. PMID- 29332818 TI - A novel dual labeling approach enables converting fluorescence labeling reagents into fluorogenic ones via introduction of purification tags. Application to determination of glyoxylic acid in serum. AB - Pre-column derivatization with fluorescence labeling reagents involves many problems including crowded chromatograms, possibility of the introduction of analytical errors, and poor selectivity. Herein we report a novel purification tag/fluorophore dual labeling approach based on a multi-component reaction to solve this major problem. Glyoxylic acid was recently identified as an early biomarker for diabetes, thus it was selected as a model analyte for our new dual labeling approach. Using the multi-component Petasis reaction, we could introduce a fluorophore (1-pyreneboronic acid, 1-PyBA) and a purification tag (taurine) to our target analyte (glyoxylic acid) in one step reaction. Using taurine as the amine reactant in Petasis reaction leads to the formation of a reaction product with a terminal sulfonic acid group which can be selectively retained on an anion exchange sorbent allowing excess fluorescent 1-PyBA reagent and its fluorescent decomposition products to be washed away. Then, quantification of the formed analyte-fluorophore-purification tag adduct was carried out by a simple isocratic HPLC-fluorescence detection method. The newly developed technique allowed highly selective, very rapid and efficient determination of glyoxylic acid in human serum eliminating endogenous components and excess reagent interference. Glyoxylic acid was determined in serum at a final concentration down to 30nM (600 fmol/injection) with good recovery (87.0%), accuracy (- 2.2 to 9.2) and precision (%RSD <= 8.7). PMID- 29332819 TI - Chemometric analysis of NMR and GC datasets for chemotype characterization of essential oils from different species of Ocimum. AB - The genus Ocimum (Labiatae) comprises 30 species found in tropical and subtropical regions of the planet, of which species O. basilicum L. and O. gratissimum are widely used in food and traditional medicine. Phytochemical studies on Ocimum have revealed a number of essential oil chemotypes, for example, eugenol, methyl chavicol, linalool, and methyl cinnamate. Since essential oils are commercially assessed according to their content, the aim of this study was to develop a simple and precise method for their qualitative and quantitative analysis using NMR spectroscopy combined with chemometrics. Seven essential oils from different species of Ocimum, an unknown sample, and a commercial sample were evaluated and the results compared to those from established and precise GC-MS and GC-FID methods. Chemometric evaluation from both 1H NMR and GC-MS data revealed three chemotypes: eugenol for O. gratissimum, O. micranthum, and O. tenuiflorum; estragole for O. basilicum, O. basilicum var. purpuracens, and O. selloi; and methyl cinnamate for O. americanum. The unknown and commercial species were classified as cinnamate and eugenol chemotypes, respectively. Despite the corroborating results, the chemometric analysis revealed the higher robustness (better adjustment) of the 1H NMR model compared to the GC-MS method in terms of certain statistical parameters. The 1H NMR method allows for the detection and quantification of organic compounds in a complex mixture without the need for certified standard compounds. Although GC-MS and GC FID were able to detect five compounds not observed by NMR spectroscopy, the four most important metabolites (eugenol, estragole, methyl cinnamate, and eucalyptol) were more readily detected and quantified by 1H NMR. PMID- 29332820 TI - A strategy for screening of alpha-glucosidase inhibitors from Morus alba root bark based on the ligand fishing combined with high-performance liquid chromatography mass spectrometer and molecular docking. AB - A new method based on ligand fishing combined with high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer and molecular docking was established to screen alpha-glucosidase inhibitors from a traditional Chinese medicine Morus alba root bark. alpha-Glucosidase was immobilized on magnetic nanoparticles, used as a solid support to incubate with crude extract. After ligand fishing, the eluates were analyzed by high-performance liquid chromatography quadrupole-time-of-flight mass spectrometer, obtaining eleven ligands (1-4, 6-12) eventually. In order to discriminate the non-specific binders and discover powerful enzyme inhibitors, molecular docking was further performed and three of the eleven ligands were optimized to be excellent alpha-glucosidase inhibitors by the confirmation of isolation and bioassay of individual compounds. These three ligands, sanggenons G (6), O (7) and sanggenol G (12) exhibited striking inhibitory activities with extremely low IC50 values. The results suggest that established method will be applied to a wide range of target protein to screen potential bioactive constituents from herbal medicines. PMID- 29332821 TI - Determination of pyrophosphate and sulfate using polyhexamethylene guanidine hydrochloride-stabilized silver nanoparticles. AB - Positively charged polyhexamethylene guanidine hydrochloride-stabilized silver nanoparticles (PHMG-AgNPs) were prepared and applied as a colorimetric probe for single-step determination of pyrophosphate and sulfate. The approach is based on the nanoparticles aggregation leading to change in their absorption spectra and color of the solution. Due to both electrostatic and steric stabilization these nanoparticles show decreased sensitivity relatively to many common anions, which allows for simple and rapid direct single-step determination of pyrophosphate and sulfate. Effects of different factors (time of interaction, pH, concentrations of anions and the nanoparticles) on aggregation of PHMG-AgNPs and analytical performance of the procedure were investigated. The method allows for the determination of pyrophosphate and sulfate in the range of 0.16-2MUgmL-1 and 20 80MUgmL-1 with RSD of 2-5%, respectively. The analysis can be performed using either spectrophotometry or naked-eye detection. Practical application of the method was shown by the example of pyrophosphate determination in baking powder sample. PMID- 29332822 TI - Constituting fully integrated colorimetric analysis system for Fe(III) on multifunctional nitrogen-doped MoO3/cellulose paper. AB - Using ammonium molybdate and thiourea as precursors, nitrogen-doped MoO3 was produced by a one-step carbonization and then fixed into the cellulose filter paper (NMCP) with acrylic resin as a fixative. NMCP was designed as a multifunctional nanocomposite, i.e., solid phase adsorbent for Fe(III) preconcentration, photocatalyst for iron species transformation and color interference removal, and colorimetric sensor for Fe(III) determination. After photocatalysis, the complex of Fe-humic substances could be transformed into Fe(III) ions, the interference of colored organic matter (e.g., aqueous humic substance) was removed, Fe(III) was enriched selectively onto NMCP with the coexistence of interference metal ions (e.g. Co(II) and Cd(II)) and then transformed into Fe(II) by hydroxylamine and photoreduction and for colorimetric analysis. The obstacle of o-phenanthroline colorimetric method was overcome. The photodegradation activity of MoO3 was improved 2.02 times by nitrogen doping with the optimal mass ratio, which was also 5.11 times of P25-TiO2. The concentration of Fe(III) on NMCP was quantified by the gray-scale using smart phones and image processing software, without complicated equipment. Based on multifunctional NMCP, a fully integrated visual analysis system was proposed and suitable for the field detection of Fe(III) in natural water. The log-linear calibration curve for Fe(III) was in the range of 0.05-5mg/L with a determination coefficient (R2) of 0.976 and detection limit of 15MUg/L. PMID- 29332823 TI - A combination of computational-experimental study on metal-organic frameworks MIL 53(Al) as sorbent for simultaneous determination of estrogens and glucocorticoids in water and urine samples by dispersive micro-solid-phase extraction coupled to UPLC-MS/MS. AB - In this work, computational and experimental methods were used to study the adsorption of estrogens and glucocorticoids on metal-organic frameworks (MOFs). Computer-aided molecular simulation was applied to predict the adsorption of eight analytes on four MOFs (MIL-101(Cr), MIL-100(Fe), MIL-53(Al), and UiO 66(Zr)) by examining molecular interactions and calculating free binding energies. Subsequently, the four water-stable MOFs were synthesized and evaluated as adsorbents for the target hormones in aqueous solution. As the MOF exhibiting the highest adsorption capacity in both computations and experiments, MIL-53(Al) was chosen as a sorbent to develop a dispersive micro-solid-phase extraction procedure coupled to ultra-performance liquid chromatography tandem mass spectrometry for simultaneous determination of the target analytes in water and human urine samples. Experimental parameters affecting the extraction recoveries, including pH, ionic strength, MIL-53(Al) amount, extraction time, desorption time, and desorption solvent, were optimized. The optimized method provided a linear range of 0.005025-368.6MUg/L with good correlation coefficients (0.9982 <= r2 <= 0.9992), and limits of detection (S/N = 3) and quantification (S/N = 10) of 0.0015-1.0MUg/L and 0.005-1.8MUg/L, respectively. The analyte recoveries were in the range of 80.6-98.4% in water samples and 88.4-93.2% in urine samples. Furthermore, MIL-53(Al) showed good stability over 10 extraction cycles (RSD < 10.0%). Good agreement between experimental measurements and computational results showed the potential of this approach for elucidating adsorption mechanisms and predicating extraction efficiencies for MOFs and targets, providing new directions for the development and utilization of MOFs. PMID- 29332824 TI - Dithiothreitol-based protein equalization technology to unravel biomarkers for bladder cancer. AB - This study aimed to assess the benefits of dithiothreitol (DTT)-based sample treatment for protein equalization to assess potential biomarkers for bladder cancer. The proteome of plasma samples of patients with bladder carcinoma, patients with lower urinary tract symptoms (LUTS) and healthy volunteers, was equalized with dithiothreitol (DTT) and compared. The equalized proteomes were interrogated using two-dimensional gel electrophoresis and matrix assisted laser desorption ionization time of flight mass spectrometry. Six proteins, namely serum albumin, gelsolin, fibrinogen gamma chain, Ig alpha-1 chain C region, Ig alpha-2 chain C region and haptoglobin, were found dysregulated in at least 70% of bladder cancer patients when compared with a pool of healthy individuals. One protein, serum albumin, was found overexpressed in 70% of the patients when the equalized proteome of the healthy pool was compared with the equalized proteome of the LUTS patients. The pathways modified by the proteins differentially expressed were analyzed using Cytoscape. The method here presented is fast, cheap, of easy application and it matches the analytical minimalism rules as outlined by Halls. Orthogonal validation was done using western-blot. Overall, DTT-based protein equalization is a promising methodology in bladder cancer research. PMID- 29332825 TI - Development of Gd3+-immobilized glutathione-coated magnetic nanoparticles for highly selective enrichment of phosphopeptides. AB - In this study, we designed a gadolinium-based immobilized metal ion affinity chromatography material for the selective enrichment of phosphopeptides. Gadolinium ion was immobilized on the surface of glutathione-coated magnetic nanoparticles through a facile and effective synthetic route. The adsorbent integrated the advantages of superparamagnetism of Fe3O4 core, good biological compatibility of glutathione, and strong interaction between gadolinium ion and phosphopeptides. It was employed to enrich phosphopeptides from standard protein digests coupled with MALDI-TOF MS. Results demonstrated that the adsorbent possessed high selectivity for phosphopeptides, good reusability and reproducibility. Moreover, the material provided selective enrichment of phosphopeptides from real samples including non-fat milk digests and human serum. The developed method exhibited high sensitivity (detection limit of 10 fmol), showing great potential in the detection of low-abundance phosphopeptides in biological samples. PMID- 29332826 TI - A robust and extendable sheath flow interface with minimal dead volume for coupling CE with ESI-MS. AB - In this paper, we describe a robust sheath flow-based CE-MS interface with minimal interface dead volume based on an extended pattern. A 20um i.d. * 90um o.d. fused-silica capillary with a chemically-etched thin-wall tip (30um o.d.) was used as the separation capillary as well as electrospray emitter, and a 200um i.d. * 375um o.d. capillary with a tapered tip (40um o.d.) was used as the sheath flow capillary. An extendable sheath-flow interface mode was adopted by decreasing the thickness of separation capillary tip and extending the separation capillary tip out from the sheath flow capillary tip, and allowing the sheath flow to be transferred to the separation capillary tip along its outer surface, forming a surface sheath flow to mix with sample flow at the separation capillary tip. Such a strategy could significantly reduce the interface dead volume and thus improve the CE separation efficiency and detection sensitivity, as well as evidently enhance the working reliability of the CE-MS interface. We investigated various factors affecting the interface performance, including capillary extending distance, emitter diameters, sheath flow capillary shape, and sheath flow rate. Under the optimized conditions, a minimal interface dead volume of ca. 4pL was obtained which is the smallest one compared with previously-reported sheath flow-based CE-MS interfaces. The feasibility and applicability of the present CE-MS interface were demonstrated in the separation of a peptide mixture with high separation efficiency of 2.07-3.38um plate heights and good repeatabilities (< 6.1% RSD, n = 5). We except such a simple and robust interface could provide a possible solution for the development of commercial CE-MS interfaces differing from the currently-used ones, and has the potentials to be applied in routine analytical laboratories for various studies such as proteomics, metabolomics, or single cell analysis. PMID- 29332827 TI - Rapid and sensitive detection of malachite green in aquaculture water by electrochemical preconcentration and surface-enhanced Raman scattering. AB - A highly sensitive and rapid method of in-situ surface-enhanced Raman spectroscopy (SERS) combining with electrochemical preconcentration (EP) in detecting malachite green (MG) in aquaculture water was established. Ag nanoparticles (AgNPs) were synthesized and spread onto the surface of gold electrodes after centrifuging to produce SERS-active substrates. After optimizing the pH values, preconcentration potentials and times, in-situ EP-SERS detection was carried out. A sensitive and rapid analysis of the low-concentration MG was accomplished within 200s and the limit of detection was 2.4 * 10-16M. PMID- 29332828 TI - UPLC-MS/MS analysis for antioxidant components of Lycii Fructus based on spectrum effect relationship. AB - Lycii Fructus is widely cultivated in the Northwest China. It is well-known for its antiaging effect in traditional Chinese medicines (TCMs), but the effective components are not clear. In this work, the ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) was used to study the antioxidant components of Lycii Fructus through analyzing the spectrum-effect relationship, and the positive correlation components with antioxidant activity were partially identified. The extractums of Lycii Fructus were adsorbed with macroporous resin, and then eluted with water and 30%, 60%, 90% ethanol in turn. The extract fraction eluted with 60% ethanol was determined as the best, and was taken for subsequent experiments. With the above separation method, UPLC fingerprints of thirty batches of Lycii Fructus (from different areas) were obtained, and thirty common peaks were selected through similarity analysis (SA). Combined with the data of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) assays, the spectrum-effect relationship was studied. The results showed that the main peaks with antioxidant activity were P14, P26, P8, and P21 for DPPH, and P26, P14, P21, and P19 for ABTS. Using the UPLC-MS/MS data, peaks P14, P19, P21, and P30 were respectively identified as chlorogenic acid, quercetin, kaempferol, and isorhamnetin, and then the results were confirmed through comparison with the standards and other references. Finally, their strong antioxidant activities were validated experimentally. PMID- 29332829 TI - Synchronous detection of ebolavirus conserved RNA sequences and ebolavirus encoded miRNA-like fragment based on a zwitterionic copper (II) metal-organic framework. AB - From a three-dimensional (3D) metal-organic framework (MOF) of {[Cu(Cmdcp)(phen)(H2O)]2.9H2O}n (1, H3CmdcpBr = N-carboxymethyl-(3,5 dicarboxyl)pyridinium bromide, phen = phenanthroline), a sensitive and selective fluorescence sensor has been developed for the simultaneous detection of ebolavirus conserved RNA sequences and ebolavirus-encoded microRNA-like (miRNA like) fragment. The results from molecular dynamics simulation confirmed that MOF 1 absorbs carboxyfluorescein (FAM)-tagged and 5(6)-carboxyrhodamine, triethylammonium salt (ROX)-tagged probe ss-DNA (probe DNA, P-DNA) by pi...pi stacking and hydrogen bonding, as well as additional electrostatic interactions to form a sensing platform of P-DNAs@1 with quenched FAM and ROX fluorescence. In the presence of targeted ebolavirus conserved RNA sequences or ebolavirus-encoded miRNA-like fragment, the fluorophore-labeled P-DNA hybridizes with the analyte to give a P-DNA@RNA duplex and released from MOF 1, triggering a fluorescence recovery. Simultaneous detection of two target RNAs has also been realized by single and synchronous fluorescence analysis. The formed sensing platform shows high sensitivity for ebolavirus conserved RNA sequences and ebolavirus-encoded miRNA-like fragment with detection limits at the picomolar level and high selectivity without cross-reaction between the two probes. MOF 1 thus shows the potential as an effective fluorescent sensing platform for the synchronous detection of two ebolavirus-related sequences, and offer improved diagnostic accuracy of Ebola virus disease. PMID- 29332830 TI - Novel approach in k0-NAA for highly concentrated REE Samples. AB - The present paper presents a new approach for k0-NAA for accurate quantification with short turnaround analysis times for rare earth elements (REEs) in high content mineral matrices. REE k0 and Q0 values, spectral interferences and nuclear interferences were experimentally evaluated and improved with Alfa Aesar Specpure Plasma Standard 1000mgkg-1 mono-rare earth solutions. The new iterative gamma-ray self-attenuation and neutron self-shielding methods were investigated with powder standards prepared from 100mg of 99.9% Alfa Aesar mono rare earth oxide diluted with silica oxide. The overall performance of the new k0-NAA method for REEs was validated using a certified reference material (CRM) from Canadian Certified Reference Materials Project (REE-2) with REE content ranging from 7.2mgkg-1 for Yb to 9610mgkg-1 for Ce. The REE concentration was determined with uncertainty below 7% (at 95% confidence level) and proved good consistency with the CRM certified concentrations. PMID- 29332831 TI - Corrigendum to, Carboxylated carbon nanospheres as solid-phase extraction adsorbents for the determination of perfluorinated compounds in water samples by liquid chromatography-tandem mass spectrometry' [Talanta 178 (2018) 129-133]. PMID- 29332832 TI - Electrochemiluminescent detection of cardiac troponin I by using soybean peroxidase labeled-antibody as signal amplifier. AB - This work proposed an electrochemiluminescence (ECL) immunosensor for quantitative monitoring of cardiac troponin I (cTnI) in plasma with soybean peroxidase (SBP) labeled-antibody as signal amplifier. The ECL sandwich immunosensor was constructed by covalent binding anti-cTnI capture antibody (Ab1) to polyethylenimine-functionalized graphene matrix, which was obtained by a simple hydrothermal reaction between polyethylenimine (PEI) and graphene oxide (GO). After that, the SBP-labeled detection antibody (SBP-Ab2), synthesized by NaIO4 method, was immobilized on the surface of electrode through sandwich immunoreaction. The SBP on electrode surface displayed strong and stable ECL signal of luminol in the presence of H2O2, which could be used for cTnI detection with a concentration range of 5-30,000pg/mL and a detection limit of 3.3pg/mL. This proposed SBP-modified immunosensor displayed high sensitivity, selectivity and accuracy, and was expected not only to detect cTnI in practical human plasma sample but also to be used in other biomarkers detection. PMID- 29332833 TI - A combination of "thiol-ene" click chemistry and surface initiated atom transfer radical polymerization: Fabrication of boronic acid functionalized magnetic graphene oxide composite for enrichment of glycoproteins. AB - An efficient glycoproteins enrichment platform is one of vital preprocessing steps in biomarker research and in particular glycoproteomics. In this work, a well-defined boronic acid functionalized magnetic graphene oxide nanocomposite (Fe3O4-GO@PAAPBA) was synthesized for the selective enrichment of glycoproteins from complex biological samples via a novel strategy based on the "thiol-ene" click chemistry and surface initiated atom transfer radical polymerization (SI ATRP). The initiator of ATRP was anchored to the surface of substrate through "thiol-ene" click reaction. The product Fe3O4-GO@PAAPBA was successfully synthesized in following SI-ATRP. The Fe3O4-GO@PAAPBA nanocomposite was characterized by transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometry (VSM) and thermogravimetric analysis. The adsorption capacity of Fe3O4-GO@PAAPBA towards ovalbumin (OVA) and transferrin (Trf) is 471mgg-1 and 450mgg-1, respectively. The nanocomposite also featured good selectivity to glycoproteins in the mixture of glycoproteins and non-glycoproteins at alkaline (pH 9.0) and physiological conditions (pH 7.4). Furthermore, it can be applied to extract glycoproteins directly from egg white samples. These results have indicated that Fe3O4-GO@PAAPBA was a potential affinity material in glycoprotein analysis. PMID- 29332834 TI - Direct inlet probe ion mobility spectrometry. AB - Direct inlet probe (DIP) was used as an introduction and a pre-separation step for atmospheric pressure photoionization time-of-flight ion mobility spectrometry (APPI-TOF-IMS) for the first time. IMS is an analytical technique used to separate and identify ionized molecules in the gas phase and under atmospheric pressure based on their mobility. The utilization of DIP prior to IMS gives the possibility to introduce the analytes into the gas phase and provides an additional separation based on their vapor pressure. The proof-of-principle study was done on example of eight polycyclic aromatic hydrocarbons (PAHs) with the ring number from 2 to 5, namely naphthalene, fluorene, anthracene, phenanthrene, pyrene, fluoranthene, benzo[a]pyrene, and benzo[k]fluoranthene. All these compounds are included in EPA priority pollutant list. Moreover, benzo[a]pyrene and benzo[k]fluoranthene are marked by EPA as probably carcinogen compounds and also included into SCF and EU lists. To increase the sensitivity of DIP-APPI-IMS the analysis was performed using a dopant assisted ionization method (benzene, 74mgL-1 in N2). It was found that the heating rate of the interface plays a crucial role for the whole analytical procedure. To prove the ability of this method to analyze PAHs in the mixture, the mixtures containing up to five PAHs were analyzed. The LODs for the analyzed compounds obtained with DIP-APPI-IMS were found to be in the tens- or hundreds-of-microgram-per-liter range. The obtained results are promising enough to ensure the potential of DIP as an introduction and a pre-separation step for ion mobility based methods. PMID- 29332835 TI - Varietal discrimination of hop pellets by near and mid infrared spectroscopy. AB - Hop is one of the most important ingredients of beer production and several varieties are commercialized. Therefore, it is important to find an eco-real-time friendly-low-cost technique to distinguish and discriminate hop varieties. This paper describes the development of a method based on vibrational spectroscopy techniques, namely near- and mid-infrared spectroscopy, for the discrimination of 33 commercial hop varieties. A total of 165 samples (five for each hop variety) were analysed by both techniques. Principal component analysis, hierarchical cluster analysis and partial least squares discrimination analysis were the chemometric tools used to discriminate positively the hop varieties. After optimizing the spectral regions and pre-processing methods a total of 94.2% and 96.6% correct hop varieties discrimination were obtained for near- and mid infrared spectroscopy, respectively. The results obtained demonstrate the suitability of these vibrational spectroscopy techniques to discriminate different hop varieties and consequently their potential to be used as an authenticity tool. Compared with the reference procedures normally used for hops variety discrimination these techniques are quicker, cost-effective, non destructive and eco-friendly. PMID- 29332836 TI - Fluorescent and colorimetric dual-mode aptasensor for thrombin detection based on target-induced conjunction of split aptamer fragments. AB - Since the lack of detection diversity of the single-signal readout strategy, it is urgent to develop fast and multisignal assay strategies. A highly selective and sensitive assay method with colorimetric and fluorometric dual signals readouts is presented in this paper. It is based on the principle that the target induced conjunction of split aptamer fragments assembled on the surface of Au nanoparticles (AuNPs). In the presence of targets, the color of solution changed from wine red to blue and can be measured both visual inspection and spectrophotometry because of the aggregation of AuNPs. At the same time, the report probes which are original hybrid with the anchoring aptamer fragments on the AuNPs surface can be released and recovers the fluorescence. By use of this detection strategy, the limit of detection for thrombin (TMB), as a model of analyte, were 0.45 and 0.16nM, respectively. Furthermore, this protocol can discriminate TMB from other analogue with high selectivity and can be used to detect TMB in human serum samples. The results came from the two signals were well consistent with each other, which demonstrated that it has application potential for detection of TMB in complex matrix. PMID- 29332837 TI - A novel electroanalytical assay for sulfamethazine determination in food samples based on conducting polymer nanocomposite-modified electrodes. AB - The toxicity of sulfa drugs has attracted great attention, and the reported electrochemical methods for sulfa drugs usually employ a high oxidation potential. In this work, a one-pot synthesized conducting polymer nanocomposite containing poly(3,4-ethylenedioxythiophene) (PEDOT) and MnO2 was cast on a screen printed carbon electrode (SPCE), and the modified electrode showed superior electrochemical activity over a bare electrode for sulfamethazine (SMZ) determination. The SMZ detection was based on the electrochemical oxidation product, which showed an adsorptive property and exhibited a redox couple at 0.39V in pH 3 phosphate buffer solutions (PBS). The electrode surfaces were well characterized by the water contact angle technique, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FE SEM), atomic force microscopy (AFM) and cyclic voltammetry. By the use of square wave voltammetry (SWV), a wide linear response to SMZ, from 1.0uM to 500MUM, was obtained. The sensitivity and detection limits (S/N = 3) were 0.115MUAMUM-1 and 0.16MUM, respectively. The proposed method and a reference high-performance liquid chromatographic method (HPLC) were applied for the determination of SMZ in two real samples using the standard addition method, and satisfactory recoveries and good agreement were obtained. PMID- 29332838 TI - Rapid and sensitive tapered-capillary microextraction combined to on-line sample stacking-capillary electrophoresis for extraction and quantification of two beta blockers in human urine. AB - A tapered-capillary microextraction (tCap-MUEx) combining with field-amplified stacking (FASI) method for CE analysis was developed. The tCap-MUEx method is based on the construction of a micro solid phase extraction (SPE) column by narrowing the end of a silica capillary from 530um (inner diameter) to 20um, enabling the packing of 45um sorbent particles without a frit. Various parameters that may affect the microextraction and FASI-CE analysis have been investigated and optimized. This study shows that microextraction exhibits advantages of small sample and sorbent volumes (less than 200MUL sample and 2MUL sorbent) and fast extraction time of 6min. The method was successfully applied for efficient determination of atenolol and metoprolol in human urine samples, with recovery of 93.7-105.5% and RSD (n=3) lower than 8.5%. Twenty-one-fold and nineteen-fold average enhancement of detection sensitivity was achieved for atenolol and metoprolol, respectively, versus the CE method without tCap-MUEx and FASI. The method is environmentally friendly and allows reuse of the sorbent at least 8 times without an obvious loss in performance. The results indicate that the proposed method could be potentially applied in a wide range of doping control, clinical, forensic toxicology, food analysis and environmental analyses. PMID- 29332839 TI - Magnetic solid-phase extraction based on magnetic multiwalled carbon nanotubes for the simultaneous enantiomeric analysis of five beta-blockers in the environmental samples by chiral liquid chromatography coupled with tandem mass spectrometry. AB - In this work, the magnetic multiwalled carbon nanotubes (Mag-MWCNTs) were prepared by self-assembly method and characterized by scanning electron microscopy, X-ray powder diffraction, energy dispersive X-ray and vibrating sample magnetometer. Then, these synthetic Mag-MWCNTs were used as sorbents to extract five beta-blockers (atenolol, metoprolol, esmolol, pindolol and arotinolol) by magnetic solid-phase extraction. The target analytes adsorbed on Mag-MWCNTs were eluted and determined on a chiral alpha-acid glycoprotein column coupled with a triple quadrupole mass spectrometry. Eventually, the proposed method was applied to the analysis of the enantiomeric composition of the studied beta-blockers in three environmental samples, including river water, influent wastewater and effluent wastewater. Method detection and quantification limits for all enantiomers were in the range of 0.50-1.45 and 1.63-3.75ng/L, respectively. Satisfactory recovery (82.9-95.6%), good intra-day precision (RSD 0.4-10.4%) and inter-day precision (RSD 2.9-7.4%) were also obtained. With numerous advantages such as simplicity of operation, rapidity and high enrichment factor, the newly developed method has potential to assess the enantioselectivity of chiral drugs in ecotoxicity and biodegradation processes, which is also a new expanded application of Mag-MWCNTs in the environmental analysis. PMID- 29332841 TI - Improved neuron culture using scaffolds made of three-dimensional PDMS micro lattices. AB - Tissue engineering strives to create functional components of organs with different cell types in vitro. One of the challenges is to fabricate scaffolds for three-dimensional (3D) cell culture under physiological conditions. Of particular interest is the investigation of the morphology and function of the central nervous system cultured using such scaffolds. Here, we used an elastomer polydimethylsiloxane (PDMS)-to produce lattice-type scaffolds from a photolithography-defined template. The photomask with antidot arrays was spin coated by a thick layer of resist, and was downward mounted on a rotating stage at an angle of 45 degrees . After the exposure was repeated three or more times, maintaining the same exposure plan but rotated by the same angle, a photoresist was developed to produce a 3D porous template. Afterwards, a pre-polymer mixture of PDMS was poured in and cured, followed by a resist etch, resulting in lattice type PDMS features. Before cell culture, the PDMS lattices were surface functionalized. A culture test was conducted using NIH-3T3 cells and primary hippocampal cells from rats, showing homogenous cell infiltration and 3D attachment. As expected, a much higher cell number was found in the 3D PDMS lattices compared to the 2D culture. We also found a higher neuron-to-astrocyte ratio and a higher degree of cell ramification in the 3D culture compared to the 2D culture due to the change of scaffold topography and the elastic properties of the PDMS micro-lattices. Our results demonstrate that the 3D PDMS micro-lattices improve the survival and growth of cells, as well as the network formation of neurons. We believe that such an enabling technology is useful for research and clinical applications, including disease modeling, regenerative medicine, and drug discovery/drug cytotoxicity studies. PMID- 29332842 TI - Ligand-cascading nano-delivery devices to enable multiscale targeting of anti neurodegenerative therapeutics. AB - Neurodegenerative diseases are a debilitating set of conditions that affect a significant fraction of the world's population, and this fraction is expected to increase as the population ages. Many therapeutic strategies have been explored to treat the pathological mechanisms of neurodegenerative diseases, but multiple sequential hurdles to central nervous system (CNS) delivery, including the blood brain barrier (BBB), diseased neuronal membranes, and the organelle barrier, make drug delivery challenging and necessitate the use of innovative strategies to target and cross each barrier. Advances in drug delivery technology have the potential to improve the standard of treatment for neurodegenerative diseases by enhancing local drug concentration at the pathologically relevant cells and organelles. Furthermore, ligand-cascading nano-delivery devices could address these issues by sequentially presenting targeting ligands for crossing each of the aforementioned hurdles. In this review, we provide an overview of ligand technologies that enable BBB transcytosis, localization to or internalization in diseased neuronal cells, and localization at the organelle of interest. We summarize recent strategies for sequentially presenting pertinent ligands at each hurdle to CNS delivery. These ligand-cascade strategies will enable rational design of nano-delivery devices for multiscale targeting of anti neurodegenerative therapeutics. PMID- 29332840 TI - Examining patterns of multimorbidity, polypharmacy and risk of adverse drug reactions in chronic obstructive pulmonary disease: a cross-sectional UK Biobank study. AB - OBJECTIVE: This study aims: (1) to describe the pattern and extent of multimorbidity and polypharmacy in UK Biobank participants with chronic obstructive pulmonary disease (COPD) and (2) to identify which comorbidities are associated with increased risk of adverse drug reactions (ADRs) resulting from polypharmacy. DESIGN: Cross-sectional. SETTING: Community cohort. PARTICIPANTS: UK Biobank participants comparing self-reported COPD (n=8317) with no COPD (n=494 323). OUTCOMES: Multimorbidity (>=4 conditions) and polypharmacy (>=5 medications) in participants with COPD versus those without. Risk of ADRs (taking >=3 medications associated with falls, constipation, urinary retention, central nervous system (CNS) depression, bleeding or renal injury) in relation to the presence of COPD and individual comorbidities. RESULTS: Multimorbidity was more common in participants with COPD than those without (17% vs 4%). Polypharmacy was highly prevalent (52% with COPD taking >=5 medications vs 18% in those without COPD). Adjusting for age, sex and socioeconomic status, those with COPD were significantly more likely than those without to be prescribed >=3 medications contributing to falls (OR 2.27, 95% CI 2.13 to 2.42), constipation (OR 3.42, 95% CI 3.10 to 3.77), urinary retention (OR 3.38, 95% CI 2.94 to 3.87), CNS depression (OR 3.75, 95% CI 3.31 to 4.25), bleeding (OR 4.61, 95% CI 3.35 to 6.19) and renal injury (OR 2.22, 95% CI 1.86 to 2.62). Concomitant cardiovascular disease was associated with the greatest risk of taking >=3 medications associated with falls/renal injury. Concomitant mental health conditions were most strongly associated with medications linked with CNS depression/urinary retention/bleeding. CONCLUSIONS: Multimorbidity is common in COPD and associated with high levels of polypharmacy. Co-prescription of drugs with various ADRs is common. Future research should examine the effects on healthcare outcomes of co prescribing multiple drugs with similar potential ADRs. Clinical guidelines should emphasise assessment of multimorbidity and ADR risk. PMID- 29332843 TI - Intrinsic electron trapping in amorphous oxide. AB - We demonstrate that electron trapping at intrinsic precursor sites is endemic in non-glass-forming amorphous oxide films. The energy distributions of trapped electron states in ultra-pure prototype amorphous (a)-HfO2 insulator obtained from exhaustive photo-depopulation experiments demonstrate electron states in the energy range of 2-3 eV below the oxide conduction band. These energy distributions are compared to the results of density functional calculations of a HfO2 models of realistic density. The experimental results can be explained by the presence of intrinsic charge trapping sites formed by under-coordinated Hf cations and elongated Hf-O bonds in a-HfO2. These charge trapping states can capture up to two electrons, forming polarons and bi-polarons. The corresponding trapping sites are different from the dangling-bond type defects responsible for trapping in glass-forming oxides, such as SiO2, in that the traps are formed without bonds being broken. Furthermore, introduction of hydrogen causes formation of somewhat energetically deeper electron traps when a proton is immobilized next to the trapped electron bi-polaron. The proposed novel mechanism of intrinsic charge trapping in a-HfO2 represents a new paradigm for charge trapping in a broad class of non-glass-forming amorphous insulators. PMID- 29332844 TI - Understanding carbon nanotube channel formation in the lipid membrane. AB - Carbon nanotubes (CNTs) have been considered a prominent nano-channel in cell membranes because of their prominent ion-conductance and ion-selectivity, offering agents for a biomimetic channel platform. Using a coarse-grained molecular dynamics simulation, we clarify a construction mechanism of vertical CNT nano-channels in a lipid membrane for a long period, which has been difficult to observe in previous CNT-lipid interaction simulations. The result shows that both the lipid coating density and length of CNT affect the suitable fabrication condition for a vertical and stable CNT channel. Also, simulation elucidated that a lipid coating on the surface of the CNT prevents the CNT from burrowing into the lipid membrane and the vertical channel is stabilized by the repulsion force between the lipids in the coating and membrane. Our study provides an essential understanding of how CNTs can form stable and vertical channels in the membrane, which is important for designing new types of artificial channels as biosensors for bio-fluidic studies. PMID- 29332845 TI - N-doped ZnO nanosheets: towards high performance two dimensional catalysts. AB - Recently, catalytic activity of atomically thin two dimensional (2D) materials has attracted great interest. In this paper, via first principles calculations, we show for the first time that N-doped 2D one-atom-thick ZnO nanosheets exhibit high catalytic activity towards CO oxidation. A pristine 2D ZnO nanosheet is chemically inert and as a result, CO and O2 molecules do not chemically bind on the nanosheet. Our calculations predict that the N doping activates the ZnO sheet, leading to strong CO and O2 adsorptions. We further show that the CO oxidation catalyzed by the N-doped 2D ZnO sheet has a low reaction barrier around 0.5 eV. Besides high catalytic activity, the N-doped 2D ZnO sheet also demonstrates intriguing electronic and magnetic properties. These findings provide new opportunities for the future development of high performance 2D catalysts. PMID- 29332846 TI - Using Concept Mapping to Explore and Engage Parent and Youth Residents of an Economically Underserved Minority Community around Children's Asthma. PMID- 29332847 TI - Using Concept Mapping to Explore and Engage Parent and Youth Residents of an Economically Underserved Minority Community around Children's Asthma. AB - BACKGROUND: Asthma continues to disproportionately impact children living in economically underserved urban neighborhoods, and contributes to persistent racial and economic disparities in health. Furthermore, asthma is often exacerbated by the presence of social and environmental factors that are prevalent in, and sometimes particular to, these communities. OBJECTIVES: The present study uses a community-based participatory research (CBPR) approach to explore and define the experience and issues around children's asthma in an economically underserved community. These findings will be used to inform the design of a community intervention. METHODS: Through a community and academic partnership called Healthy Living, Healthy Learning, Healthy Lives (HL3), we engaged neighborhood youth and adult residents (N = 21) in a concept mapping activity to identify triggers and health care-related factors that influence children with asthma. RESULTS: Findings highlight that the most important triggers of asthma included indoor and outdoor irritants and allergens, as well as violence and fear-related emotions. The most important factors perceived to influence the care of asthma included medical relievers such as asthma medication, appliances such as a humidifier, and supports for asthma like the school nurse. Differences between adults and youth perceptions of factors triggering and influencing asthma are highlighted. CONCLUSIONS: Engaging community residents as experts provided a deeper understanding of the issues around children's asthma in the community, which can contribute to the design of a more effective intervention. PMID- 29332849 TI - Combined Diabetes Prevention and Disease Self-Management Intervention for Nicaraguan Ethnic Minorities: A Pilot Study. AB - BACKGROUND: Informed by formative community-based participatory research (CBPR), we developed a combined model of diabetes prevention and self-management. OBJECTIVES: To assess the feasibility, acceptability, and preliminary efficacy of our CBPR-inspired model. METHODS: A mixed methods study was conducted using a pre experimental design. The setting was a church-based clinic located on Nicaragua's rural Atlantic coast. Miskitos and Creoles with or at risk for diabetes were sampled. Preliminary efficacy was assessed with A1C, weight, and quality of life (QOL) measures at baseline, 3 months, and 6 months. An open-ended survey assessed intervention satisfaction. The 8-week, registered nurse (RN)-led intervention emphasized knowledge acquisition and behavioral strategies for dietary, physical activity, and medication regimen adherence. Paired t tests were computed to assess preliminary efficacy. Content analysis was conducted to assess intervention acceptability. RESULTS: A total of 42 participants were enrolled. For participants completing follow-up data collection (n = 33), mean A1C improved from 8.8% to 8.3% (t = -2.19; p = .04) from baseline to 3 months. Among participants with a baseline A1C of greater than 7.5% (n = 24), the mean A1C decreased from 9.7% to 9.0% from baseline to 3 months (t = -2.86; p = .01), and to 8.7% at 6 months (t = -3.00; p = .01). Nonsignificant weight changes were observed. Mental health QOL improved, on average from baseline to 3 months (t = 2.20; p = .04) and 6 months (t = 4.7; p < .01) for the sample. An increase in mean physical health QOL was observed from baseline to 3 months (t = 2.91; p < .01). The intervention was found to be acceptable. Study feasibility was good, with successful research capacitation and achievement of sampling goals. CONCLUSIONS: Findings suggest our novel intervention holds promise for wider application to reduce diabetes burden among Nicaraguan ethnic minorities. PMID- 29332850 TI - Community Advisory Boards Guiding Engaged Research Efforts within a Clinical Translational Sciences Award: Key Contextual Factors Explored. AB - BACKGROUND: Engaging stakeholders in research carries the promise of enhancing the research relevance, transparency, and speed of getting findings into practice. By describing the context and functional aspects of stakeholder groups, like those working as community advisory boards (CABs), others can learn from these experiences and operationalize their own CABs. Our objective is to describe our experiences with diverse CABs affiliated with our community engagement group within our institution's Clinical Translational Sciences Award (CTSA). We identify key contextual elements that are important to administering CABs. METHODS: A group of investigators, staff, and community members engaged in a 6 month collaboration to describe their experiences of working with six research CABs. We identified the key contextual domains that illustrate how CABS are developed and sustained. Two lead authors, with experience with CABs and identifying contextual domains in other work, led a team of 13 through the process. Additionally, we devised a list of key tips to consider when devising CABs. RESULTS: The final domains include (1) aligned missions among stakeholders (2) resources/support, (3) defined operational processes/shared power, (4) well described member roles, and (5) understanding and mitigating challenges. The tips are a set of actions that support the domains. CONCLUSIONS: Identifying key contextual domains was relatively easy, despite differences in the respective CAB's condition of focus, overall mission, or patient demographics represented. By contextualizing these five domains, other research and community partners can take an informed approach to move forward with CAB planning and engaged research. PMID- 29332851 TI - Empirically Derived Lessons Learned about What Makes Peer-Led Exercise Groups Flourish. AB - BACKGROUND: Physical exercise confers many health benefits, but it is difficult to motivate people to exercise. Although community exercise groups may facilitate initiation and persistence in an exercise program, reports regarding factors that allow such groups to flourish are limited. OBJECTIVES: We performed a prospective qualitative evaluation of our experience starting a program of community-based, peer-led exercise groups for military veterans to identify important lessons learned. METHODS: We synthesized data from structured observations, post observation debriefings, and focus groups. Our participants were trained peer leaders and exercise group members. Our main outcomes consisted of empirically derived lessons learned during the implementation of a peer-led group exercise program for veterans at multiple community sites. We collected and analyzed data from 40 observation visits (covering 14 sites), 7 transcribed debriefings, and 5 focus groups. RESULTS: We identified five lessons learned. (1) The camaraderie and social aspect of the exercise groups provided motivation for people to stay involved. (2) Shared responsibility and commitment to each other by the group members was instrumental to success. (3) Regular meeting times encouraged participation. (4) Variety, especially getting outdoors, was very popular for some groups. (5) Modest involvement of professionals encouraged ongoing engagement with the program. CONCLUSIONS: Both social and programmatic issues influence implementation of group exercise programs for older, predominantly male, veterans. These results should be confirmed in other settings. PMID- 29332852 TI - How Co-Developed Are Community and Academic Partnerships? AB - BACKGROUND: The world-renowned resources of Johns Hopkins Hospital (JHH) in Baltimore, Maryland, stand in marked contrast with the surrounding impoverished neighborhoods. Community-based organizations (CBOs) are critical frontline responders to residents' needs. Baltimore CONNECT, an academic-community partnership, co-developed an intervention to strengthen connections between CBOs and between CBOs and the health care system. OBJECTIVES: To understand how members of an academic- community partnership define the act of "co-development" and share perceptions of barriers, facilitators, and ways to measure it. METHODS: We conducted semistructured interviews with 15 community partners, academic partners, and external stakeholders. RESULTS: Partners conceptualized co development as a fluid and evolving process that is the outcome of shared decision making. This exploration revealed nuances within partnership dynamics, including motivations for participation, underlying incentives, partnership equality, balance of power, and trust and relation building. CONCLUSIONS: We present insights that can be used by academic researchers and community leaders looking to co-develop interventions to improve health in urban communities domestically and internationally.JHH in Baltimore, Maryland, is one of the most highly regarded hospitals in the United States. However, its institutional resources stand in marked contrast with those available to the impoverished neighborhoods that surround it. Many have called for JHH to play a greater role in the surrounding community, where it serves as a leading source of health care. PMID- 29332854 TI - The Development of a Postpartum Weight Management Intervention for Low-Income Women: End-User Perspectives as Groundwork. AB - BACKGROUND: Postpartum weight retention (PPWR) leads to increased rates of maternal and childhood obesity, especially among low-income families. Literature is sparse regarding interventions to address PPWR. OBJECTIVE: To gain practical insight into low-income women's preferences and opinions regarding PPWR management at a community-based organization (CBO). METHODS: Mixed female focus groups composed of CBO staff and clients (n = 17) were asked open-ended questions about PPWR and potential intervention components. Systematic analysis of the discussions was performed to identify overarching themes. CONCLUSIONS: The tenets of community-engaged research state the necessity of developing community-based interventions with initial input and partnership with the potential end-users. In this study, low-income women were eager to share their thoughts about the postpartum period and potential solutions to correct unhealthy weight, thus completing a critical step in intervention development. The majority of women wanted to manage their weight in the postpartum setting, but needed structure, social support, assurance they would not injure themselves or their babies, and time saving strategies to do so. PMID- 29332853 TI - Implementing the Chronic Care Model for Opioid and Alcohol Use Disorders in Primary Care. AB - BACKGROUND: Effective treatments for opioid and alcohol use disorders (OAUD) are available, yet only a small percentage of those needing treatment receive it. OBJECTIVES: This paper describes a collaborative planning and development process used by researchers and community providers to apply the chronic care model to the delivery of treatment for OAUD in primary care. The goal was to develop and implement an intervention that would support the delivery of brief psychotherapy and medication-assisted treatment (MAT). METHODS: We used focus groups and interviews to identify barriers and facilitators, and organized the results using the chronic care model. We then identified implementation strategies, the intended organizational changes, and the materials necessary to carry out each strategy, and pilot-tested the process. RESULTS AND CONCLUSIONS: We describe the methods and outcomes of the collaborative planning and development process, and discuss implications of the work for the integration of substance use treatment with primary care. PMID- 29332855 TI - Yeego Gardening! A Community Garden Intervention to Promote Health on the Navajo Nation. AB - BACKGROUND: Yeego Gardening! is a community garden intervention to increase gardening behavior, increase access to low-cost fruit and vegetables, and ultimately increase consumption in Navajo communities. OBJECTIVES: To design a theory-based, culturally relevant intervention with three components: a community garden, monthly workshops on gardening and healthy eating, and community outreach. METHODS: Gardens were constructed and maintained in collaboration with community-based organizations in two Navajo communities. Monthly workshops were held throughout the growing season and incorporated aspects of Navajo culture and opportunities to build confidence and skills in gardening and healthy eating behaviors. In addition, program staff attended community events to promote gardening and healthy eating. CONCLUSIONS: Community input was essential throughout the planning and implementation of the intervention. If effective, community gardens may be a way to increase fruit and vegetable availability and intake, and ultimately reduce risk of obesity and diabetes. PMID- 29332856 TI - Transform Health Arkansas: A Transgender-Led Partnership Engaging Transgender/Non Binary Arkansans in Defining Health Research Priorities. AB - BACKGROUND: Transgender/non-binary (trans/NB) individuals face major challenges, including within health care. OBJECTIVES: Transform Health Arkansas (THA) engaged trans/ NB Arkansans in defining their greatest health-related concerns to inform responsive, partnered, participatory research. METHODS: The THA partnership engaged trans/NB individuals through an interactive, trans/NB-led process in nine summits across the state and collected surveys on research interests. Descriptive analysis examined respondent characteristics by gender identity, mode of survey completion, and most pressing concerns. RESULTS: The summits, attended by 54 trans/NB and 29 cisgender individuals, received positive evaluations. The top five priorities among 140 survey respondents included (1) transition-related insurance coverage, (2) access to transition care, (3) education of health care providers, (4) public education, and (5) supportive health care systems. The THA has also led to trans/NB individuals educating a range of audiences about transgender issues. CONCLUSIONS: Next steps include dissemination, identification of evidence-based interventions addressing prioritized issues, and joint development of a research agenda. PMID- 29332857 TI - Food Policy Council Case Study Describing Cross-sector Collaboration for Food System Change in a Rural Setting. AB - PROBLEM: Food Policy Councils (FPCs) are cross-sector collaborations that bring representatives from across the food system together to identify issues, coordinate programs, and inform policy. Little is known about how rural FPCs operate to influence food access in their communities. PURPOSE: To explore how a rural FPC facilitates cross-sector partnerships and influences food system change through interviews with eight members of the Adam's County FPC. RESULTS: Connections developed through the FPC helped council members work more effectively in their home organizations. Four themes were discussed: council dynamics and structure; sharing resources, expertise, and information; promoting healthy food access through programs; and food policy opportunities and challenges. CONCLUSIONS: This case study illustrates connections between FPC members in a rural county and identifies how FPCs can facilitate food system change in their communities. Improving our understanding of how rural FPCs function can help to advance the potential public health impact of councils. PMID- 29332858 TI - The effect of thiamine and its metabolites on peripheral neuropathic pain induced by cisplatin in rats. AB - Thiamine pyrophosphate (TPP) is the active metabolite of thiamine. This study aimed to investigate the effects of thiamine and TPP on cisplatin-induced peripheral neuropathic pain (PNP). Male albino Wistar type Rattus norvegicus were divided into six groups (n=6) that received 2 mg/kg cisplatin (CIS), 25 mg/kg thiamine (TM), 2 mg/kg cisplatin+25 mg/kg thiamine (CTM), 25 mg/kg TPP (TPP), 2 mg/kg cisplatin+25 mg/kg TPP (CTPP), or distilled water (healthy group; HG) for 8 days intraperitoneally. Analgesic effect was measured with a Basile Algesimeter. IL-1beta, malondialdehyde (MDA), total glutathione (tGSH), thiamine, and TPP were determined in blood samples. Histopathological examinations were performed on removed sciatic nerves. The percent analgesic effects of the CTM and CTPP groups were calculated to be 21.3% and 82.9%, respectively. Increased production of IL 1beta and MDA by cisplatin was inhibited by TPP, while it was not inhibited by thiamine. Conversion of thiamine to TPP significantly decreased in the CIS group. Histopathological and biochemical investigations demonstrated that hyperalgesia and sciatic nerve damage developed in the CIS and CTM groups with low TPP levels. These results indicate that cisplatin inhibits the formation of TPP from thiamine, leading to severe PNP. This finding suggests that TPP may be more beneficial than thiamine for the treatment of cisplatin-induced PNP. PMID- 29332859 TI - Grading fatty liver by ultrasound time-domain radiofrequency signal analysis: an in vivo study of rats. AB - This study aimed to assess the severity of fatty liver (FL) by analyzing ultrasound radiofrequency (RF) signals in rats. One hundred and twenty rats (72 in the FL group and 48 in the control group) were used for this purpose. Histological results were the golden standard: 42 cases had normal livers (N), 30 cases had mild FL (L1), 25 cases had moderate FL (L2), 13 cases presented with severe FL (L3), and 10 cases were excluded from the study. Four RF parameters (Mean, Mean/SD ratio [MSR], skewness [SK], and kurtosis [KU] were extracted. Univariate analysis, spearman correlation analysis, and stepwise regression analysis were used to select the most powerful predictors. Receiver operating characteristic (ROC) analysis was used to compare the diagnostic efficacy of single indexes with a combined index (Y) expressed by a regression equation. Mean, MSR, SK, and KU were significantly correlated with FL grades (r=0.71, P<0.001; r=0.81, P<0.001; r=-0.79, P<0.001; and r=-0.74, P<0.001). The regression equation was Y=-4.48 + 3.20 * 10-2X1 + 3.15X2 (P<0.001), where Y=hepatic steatosis grade, X1 =Mean, and X2 =MSR. ROC analysis showed that the curve areas of the combined index (Y) were superior to simple indexes (Mean, MSR, SK, and KU) in evaluating hepatic steatosis grade, and they were 0.95 (L>=L1), 0.98 (L>=L2), and 0.99 (L>=L3). Ultrasound radiofrequency signal quantitative technology was a new, noninvasive, and promising sonography-based approach for the assessment of FL. PMID- 29332860 TI - Impact of the Great East Japan Earthquake on Body Mass Index, Weight, and Height of Infants and Toddlers: An Infant Survey. AB - BACKGROUND: The body mass index (BMI) of preschool children from 4 years of age through primary school has increased since the Great East Japan Earthquake, but that of children aged under 3 years has not been studied. This study evaluated how the anthropometrics of younger children changed following the earthquake. METHODS: Height and weight data of children living in northeast Japan were collected from 3-, 6-, 18-, and 42-month child health examinations. We compared the changes in BMI, weight, and height among infants affected by the earthquake between their 3- and 6-month health examinations, toddlers affected at 21-30 months of age (affected groups), and children who experienced the earthquake after their 42-month child health examination (unaffected group). A multilevel model was used to calculate the BMI at corresponding ages and to adjust for the actual age at the 3-month health examination, health examination interval, and gestational age. RESULTS: We recruited 8,479 boys and 8,218 girls living in Fukushima, Miyagi, and Iwate Prefectures. In the infants affected between their 3 and 6-month health examinations in Fukushima, the change in BMI at 42 months of age was greater than among the unaffected children. In the toddlers affected at 21-30 months of age in Fukushima, the change in BMI was greater, but changes in weight and height were less. CONCLUSIONS: Affected infants and toddlers in Fukushima suggested some growth disturbances and early adiposity rebound, which can cause obesity. The future growth of children affected by disasters should be followed carefully. PMID- 29332861 TI - Epicardial Fat Thickness and Bone Mineral Content: The Healthy Twin Study in Korea. AB - BACKGROUND: The conventional concept of positive association between general obesity and bone health was challenged in recent studies reporting the different effects of specific fat deposition on bone health. In the present study, we investigated the association between epicardial fat and bone health. METHODS: We measured echocardiographic epicardial fat thickness (EFT) and bone mineral content (BMC) in a twin-family cohort of Koreans (n = 1,198; 525 men, 460 pre- and 213 post-menopausal women). A total 121 pairs of monozygotic twin (MZ) and 404 pairs of dizygotic twin and sibling pairs (DZ/Sib) were included. RESULTS: EFT was positively associated with BMC in total, as well as in three subgroups (beta = 0.107, 0.076, and 0.058 for men, pre-, and post-menopausal women, respectively). The positive association between EFT and BMC remained for DZ/Sib difference analysis, but was absent for MZ comparisons. The positive association between BMI and BMC was consistent for DZ/Sib and MZ difference analysis. After adjusting for the effect of general obesity via BMI, the association between BMC and EFT was statistically non-significant (beta = 0.020, 0.000, and -0.009 for men, pre-, and post-menopausal women, respectively). CONCLUSION: Our findings do not support epicardial fat's beneficial effects on bone health, whereas general adiposity has an osteotropic effect. The association between EFT and BMC is through common genetic component factors. PMID- 29332862 TI - Using relaxation techniques to improve sleep during naps. AB - Insufficient sleep is a common occurrence in occupational settings (e.g. doctors, drivers, soldiers). The resulting sleep debt can lead to daytime sleepiness, fatigue, mood disorder, and cognitive deficits as well as altered vascular, immune and inflammatory responses. Short daytime naps have been shown to be effective at counteracting negative outcomes related to sleep debt with positive effects on daytime sleepiness and performance after a normal or restricted night of sleep in laboratory settings. However, the environmental settings in the workplace and the emotional state of workers are generally not conducive to beneficial effects. Here, we tested whether relaxation techniques (RT) involving hypnosis might increase total sleep time (TST) and/or deepen sleep. In this study, eleven volunteers (aged 37-52) took six early-afternoon naps (30 min) in their occupational workplace, under two different conditions: control 'Naps' or 'Naps + RT' with a within-subjects design. Our results demonstrate that adding RT to naps changes sleep architecture, with a significant increase in the TST, mostly due to N2 sleep stage (and N3, to a lesser extent). Therefore, the deepening of short naps with RT involving hypnosis might be a successful non pharmacological way to extend sleep duration and to deepen sleep in occupational settings. PMID- 29332863 TI - Lipid Parameters are Independently Associated with Cardio-Ankle Vascular Index (CAVI) in Healthy Japanese Subjects. AB - AIM: To investigate the associations of conventional lipid parameters with arterial stiffness assessed by cardio-ankle vascular index (CAVI). METHODS: A retrospective cross-sectional study was conducted in 23,257 healthy Japanese subjects (12,729 men and 10,528 women, aged 47.1+/-12.5 years, body mass index (BMI) 22.9+/-3.4 kg/m2) who underwent health screening between 2004 and 2006 in Japan. RESULTS: Male subjects had significantly higher BMI, CAVI and triglycerides (TG), and lower high-density lipoprotein cholesterol (HDL-C) compared to female subjects. After adjusting for confounders, including gender, age, systolic blood pressure and BMI identified by multiple regression analysis, adjusted CAVI was lower in normolipidemic than in dyslipidemic subjects. Among dyslipidemic subjects, those with hypertriglyceridemia had higher adjusted CAVI. A trend test detected linear relations between adjusted CAVI and all the conventional lipid parameters throughout the entire range of serum levels. After adjusting for confounders, logistic regression models showed that all lipid parameters contributed independently to high CAVI (>=90th percentile). Receiver operating-characteristic analysis determined reliable cut-off values of 93 mg/dl for TG (area under the curve, AUC= 0.735), 114 mg/dl for low-density lipoprotein cholesterol (AUC=0.614) and 63 mg/dl for HDL-C (AUC=0.728) in predicting high CAVI. These cut-off values were confirmed to independently predict high CAVI in a bivariate logistic regression model. CONCLUSION: The present study demonstrated independent contribution of conventional lipid parameters to CAVI, indicating a possible association of lipid parameters with early vascular damage. PMID- 29332864 TI - Associations of periparturient plasma biochemical parameters, endometrial leukocyte esterase and myeloperoxidase, and bacterial detection with clinical and subclinical endometritis in postpartum dairy cows. AB - This study was aimed at demonstrating associations between peripheral biochemical parameters, endometrial leukocyte esterase (LE) and myeloperoxidase (MPO), and bacterial detection with the degree of endometrial inflammation, and determining the best time postpartum for diagnosing endometritis to predict subsequent fertility in dairy cows. Plasma albumin, blood urea nitrogen (BUN), total cholesterol (T-cho), NEFA, and BHBA concentrations were analyzed in 43 Holstein cows at 3, 5 and 7 weeks postpartum (W3, W5 and W7). Endometrial samples were collected at W3, W5 and W7 to examine LE and MPO activities, bacterial detection rates, and PMN% profiles. The 43 cows were divided into healthy (HE), subclinical endometritis (SE), and clinical endometritis (CE) groups, classified differently at W3, W5 and W7 based on the definitions of SE and CE for each of the three weeks pp. LE level had an association with PMN% in all weeks pp (P<0.05). Albumin and BUN levels had weak negative associations with endometrial PMN% at W3. Pathogenic bacterial detection rates were higher in the cows with endometritis at W3 and W5. Conception rate at first artificial insemination tended to be lower (P=0.057) in the cows diagnosed with endometritis at W3 than in the healthy cows. In conclusion, associations were found between endometrial LE and endometritis, but not for MPO and endometritis. Diagnosing endometritis in W3 may be the best moment to predict subsequent fertility. PMID- 29332866 TI - Impact of Stent Type on the Long-Term Prognosis of Patients With Vasospastic Angina - Can We Judge a Stent Just by Its Cover? PMID- 29332865 TI - Fibrillar architecture at three different sites of the bovine superficial digital flexor tendon. AB - Superficial digital flexor tendon (SDFT) of the bovine hindlimb originates from the caudolateral aspect of the distal femur and finally inserts onto the plantar aspect of the middle phalanges. In the present study, morphology and morphometry of the bovine SDFT at the muscle-tendon junction (MTJ), middle metatarsus (mM) and tendon-bone interface (TBI) were investigated. Cross-sectional morphology at the three regions of SDFT were oval, semioval and ring-formed, respectively. Significant difference in cross-sectional area was found only between MTJ-mM and mM-TBI (P<0.05). Functional compression and friction from the adjacent structures could be the most potential interactions affecting such appearances. Morphometric data of tenocyte number, water content, and glycosaminoglycan (GAG) length and angle were found increasing in the proximodistal direction, except the fibril diameter and collagen fibril index (CFI). Statistical analyzes could reveal significant differences in average number of tenocytes (P<0.0001), CFI (between MTJ-mM and MTJ-TBI, P<0.05), water content (between MTJ-TBI, P<0.05), length of GAG chains (between MTJ-TBI, P<0.05), and angle of GAG chains (P<0.0001), respectively. The fibrillar characteristics at the three different areas, including fibril diameter distribution and interfibrillar distance, existed in conforming to the tensional axes in situ. In addition, length and angle of GAG chains were relevant to moving directions of the collagen fibrils. PMID- 29332867 TI - ? PMID- 29332868 TI - [Azacitidine treatment for acute myeloid leukemia with myelodysplasia-related changes during peritoneal dialysis]. AB - Azacitidine (AZA) is useful for the treatment of myelodysplastic syndrome; however, there are a few case reports involving patients receiving hemodialysis and no case reports involving patients receiving peritoneal dialysis. We describe a patient with acute myeloid leukemia with myelodysplasia-related changes (AML MRC) receiving peritoneal dialysis who was treated with AZA. Peritoneal dialysis was initiated for an 85-year-old man with chronic renal failure in April 2014. In February 2015, peripheral blood analysis showed pancytopenia and bone marrow examination revealed excess of myeloblasts and dysplasia of trilineage cells. He was diagnosed with AML-MRC and treated with AZA because of being elderly and suffering from chronic renal failure. He achieved transfusion independence after 1 course and hematological remission after 3 courses of AZA treatment, without severe side effects. This case suggests that AZA is an effective therapeutic option for patients with AML-MRC receiving peritoneal dialysis. PMID- 29332869 TI - [Disseminated fusariosis in patients with acute leukemia: a retrospective analysis of three cases]. AB - We report three cases of fusariosis that occurred during the treatment of acute leukemia, during the past 5 years at our institution. Case 1: A 70-year-old male with relapsed and refractory acute lymphoblastic leukemia (ALL) developed fever and multiple nodular lesions in both the lungs. Blood culture that was subsequently obtained revealed Fusarium species. Treatment with liposomal amphotericin B (L-AMB) was ineffective, and the condition of the patient deteriorated rapidly leading to death. Case 2: A 28-year-old male with T-ALL developed echthyma gangrenosum (EG) ulcers on the scrotum during conditioning for transplantation. Antifungal therapy with L-AMB was ineffective, and later, itraconazole and micafungin (MCFG) were introduced. However, the engraftment was not achieved, and the patient died on day 27. Microbiological examination of EG samples collected on day 13 revealed infection by Fusarium species post mortem. Case 3: A 50-year-old male with blast crisis of chronic myeloid leukemia developed EG primarily on the trunk during chemotherapy. The patient died without any response to L-AMB and MCFG. A culture obtained from EG on day 19 yielded Fusarium species, post mortem. The prognosis of fusariosis is extremely poor. However, skin lesions such as EG may assist in the early diagnosis of the disseminated disease. PMID- 29332871 TI - [Successful treatment of secondary graft failure with donor lymphocyte infusion in a post-allogeneic stem cell transplant acute myeloid leukemia patient]. AB - Here we report a case of secondary graft failure that was effectively treated with donor lymphocyte infusion (DLI). A 64-year-old female patient with acute myeloid leukemia obtained partial remission with azacitidine therapy and subsequently underwent unrelated allogeneic bone marrow transplantation (BMT). After confirming successful engraftment and achieving complete remission with incomplete blood count recovery, she was subsequently followed up at an outpatient clinic. A routine test performed by day 110 after BMT revealed the presence of pancytopenia. A bone marrow aspirate did not reveal any evidence of disease relapse or hemophagocytic syndrome but demonstrated hematopoietic insufficiency. Donor chimerism also declined over time; thus, the patient was diagnosed with secondary graft failure. Supportive treatment, including granulocyte-colony stimulating factor and blood transfusion, failed to improve the blood parameters. Because the patient refused a second BMT, we performed DLI on day 147 after BMT (CD3+ cells: 1.0*107/kg, single dose). Consequently, the blood cell count improved promptly and dramatically without adverse events. Following this, we discussed the case and analyzed the related literature. PMID- 29332870 TI - [Autologous peripheral blood stem cell transplantation for double-refractory myeloma with K-RAS and N-RAS mutations]. AB - The prognosis of multiple myeloma (MM) has been improved due to the introduction of novel agents like proteasome inhibitors and immunomodulatory drugs (IMiDs). However, some cases are refractory to the use of novel agents, and the prognosis of such cases is poor. A 53-year-old male was diagnosed with MM and categorized as follows: Bence-Jones protein lambda type MM, Durie-Salmon IIIA, international staging system (ISS) stage II, and revised ISS stage II. Mutations in K-RAS and IGH/FGFR3 translocation were detected at diagnosis. His tumor was refractory to seven therapeutic regimens including bortezomib, IMiDs (lenalidomide, thalidomide, pomalidomide), conventional chemotherapy, and radiation therapy. N RAS mutations, CKS1B gains, and C-MYC split signals were detected after treatment. We performed high-dose melphalan/autologous stem cell transplantation (HD-MEL/ASCT) as a salvage therapy and achieved very good partial response. The correlation between K-RAS mutations and poor prognosis or between N-RAS mutations and reduced sensitivity to bortezomib is reported. However, RAS mutations are reported as a favorable factor for HD-MEL/ASCT. In general, mutations of both the K-RAS and N-RAS are known to be mutually exclusive. This rare MM case has mutations in both K-RAS and N-RAS, and the possible relevance of these mutations to both the refractoriness to novel therapies and sensitivity to HD-MEL/ASCT is suggested. PMID- 29332872 TI - [Successful treatment of large granular lymphocytic leukemia accompanied by refractory anemia with alemtuzumab]. AB - A 39-year-old man with anemia presented at our hospital in November 2011. Peripheral blood analysis revealed lymphocytosis with a large granular lymphocyte (LGL) count of 2,272/ul, with CD3+, CD4-, CD8+, CD56-, TCR-alphabeta+; Southern blotting analysis revealed clonal TCR Cbeta 1 gene rearrangement, leading to the diagnosis of T-LGL leukemia. In June 2012, the patient was administered with cyclophosphamide as an initial treatment because he developed transfusion dependent anemia. His anemia improved, and the treatment was discontinued in March 2013. However, anemia recurred in March 2014. The administration of cyclophosphamide was resumed; however, it was subsequently replaced with cyclosporine because of the risk of secondary cancer due to the long-term use of cyclophosphamide. However, his anemia did not improve. Further, the patient was administered with prednisone, methotrexate, and pentostatin; however, the transfusion-dependent state persisted with the cumulative transfusion of 186 RBC units until March 2016. After CD52 expression on the surface of LGL cells was confirmed, treatment with alemtuzumab, which is a monoclonal antibody against CD52, was initiated in April 2016 and the dose was gradually increased from 3 mg to 30 mg thrice per week. The patient's anemia began to improve 1 week after initiating alemtuzumab treatment, and he became transfusion-independent in the second week. Although alemtuzumab treatment was discontinued at the fifth week on the basis of a positive test result for CMV antigenemia, the result consequently became negative after ganciclovir treatment. To date, the patient's hemoglobin level has been maintained at approximately 12 g/dl without any treatment. Herein we reported the case of a patient having LGL leukemia with refractory anemia that was successfully treated using alemtuzumab. PMID- 29332873 TI - [Durable remission attained by long-term brentuximab vedotin administration in a relapsed post-allogeneic bone marrow transplant Hodgkin lymphoma patient]. AB - The prognosis for relapsed Hodgkin lymphoma after allogeneic hematopoietic cell transplantation (HSCT) is poor, partly because of limited treatment options. Here we present a case of a Hodgkin lymphoma patient who relapsed after allogeneic HSCT but remains in complete remission (CR) at 38 months from the start of extended brentuximab vedotin (BV) dosing. A 33-year-old man with refractory and relapsed nodular sclerosis classical Hodgkin lymphoma who underwent previous treatments, including adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD) ; seven combination regimens; and autologous HSCT, prior to allogeneic HSCT achieved CR after three cycles of BV. BV was continued for 26 cycles and then discontinued because of a neurogenic bladder. The other adverse effects were mild paresthesia in the fingers, mild dysgeusia, and fatigue. The patient still remains in CR at 38 months from the start of BV. Thus, extended BV dosing may be a treatment option for relapsed and refractory Hodgkin lymphoma after allogeneic HSCT. PMID- 29332874 TI - [Myelodysplastic syndrome with refractory hemorrhage due to reduced platelet aggregation activity]. AB - A 75-year-old woman suffered a cat bite 10 months after myelodysplastic syndrome (MDS) diagnosis. She visited our hospital because the internal bleeding of the wound did not improve. Although the wound was treated, the bleeding did not stop. She was hospitalized for emergency medical treatment because the bleeding volume exceeded 200 ml. Although her platelet count was normal, the platelet function test showed a decrease in collagen and arachidonic acid aggregation. After platelet transfusion, her bleeding stopped. Patients with MDS may potentially have platelet dysfunction. In the case of bleeding without thrombocytopenia, a platelet function test should be performed and treatment intervention, such as platelet transfusion, should be considered. PMID- 29332875 TI - [Recurrent multiple lung lesions synchronizing with the disease activity of multiple myeloma]. AB - A 68-year-old male patient, who was diagnosed with MGUS (IgG-lambda) 11 years ago, was referred to our hospital because of a progressing pancytopenia. He was diagnosed with multiple myeloma (MM) and was hospitalized because of fever and pneumonia. Although empiric antibiotic and antifungal therapies were promptly initiated, his pneumonia worsened. Chest CT images revealed diffuse interstitial pneumonia. Although bortezomib/dexamethasone therapy was initiated as a treatment for MM and pneumonia, he showed little response. His pneumonia worsened and progressed to acute respiratory distress syndrome. Using mPSL (500 mg/day), sivelestat, and MM treatment switching to lenalidomide/dexamethasone (Rd), his respiratory status and CT findings rapidly improved. He received Rd therapy as an outpatient; however, after the completion of six cycles of therapy, his MM progressed, with a recurrence of pneumonia and high fever again. The onset of pneumonia was closely associated with MM progression. His pneumonia improved by treatment with mPSL half-pulse and MM treatment switching to carfilzomib/Rd. In the present study, we report the case of a patient with myeloma, who presented with multiple interstitial pneumonia, resulting in respiratory failure twice in concordance with myeloma progression. PMID- 29332876 TI - [Primary breast diffuse large B-cell lymphoma developing subsequent to estramustine therapy for prostate cancer]. AB - An 85-year-old male presented with 1-year history of a right breast mass. Needle biopsy of the mass revealed diffuse proliferation of large lymphoid cells that were positive for CD20, BCL2, BCL6, and MUM1 and negative for CD5, CD10, MYC, and EBER. The patient was diagnosed as having diffuse large B-cell lymphoma, a type of primary breast lymphoma (PBL). Sex hormone imbalance, which causes conditions such as gynecomastia, is associated with PBL development in males. Estramustine is a nitrogen mustard moiety linked to estradiol. For 5 years, the patient underwent estramustine therapy for treating prostate cancer. Our case suggests an important role of estrogen in PBL development. PMID- 29332877 TI - [Overview]. PMID- 29332878 TI - [Impact of HLA mismatch on transplant outcomes]. AB - Human leukocyte antigen (HLA) mismatch increases the risk of severe graft-versus host disease (GVHD) and transplant-related mortality. However, the variety of stem cell sources such as cord blood units or the improvements in GVHD prophylaxis makes the interpretation of HLA mismatch more complex. In unrelated transplantation, the locus of HLA mismatch has a great impact on the donor candidate selection, whereas in related transplantation, it has an impact on the intensity of GVHD prophylaxis because donor availability is limited. Anti thymocyte globulin and post-transplant cyclophosphamide are attractive GVHD prophylactic agents to reduce the risk of immune-associated complications in HLA mismatched transplantations. HLA mismatch has a reduced impact in adult cord blood transplantation. In this review article, the impact of HLA mismatch based on graft sources is discussed. PMID- 29332879 TI - [Progresses in pretransplant conditioning strategies]. AB - Reduction of pretransplant conditioning intensity since the late 1990s has resulted in an increased incidence of relapse, although the number of transplantations has dramatically increased. In the 2000s, pretransplant conditioning was intensified again using drugs with less non-hematological toxicity. For myeloid malignancies, intravenous busulfan (ivBu), which has lesser toxicity than its oral formulation, was introduced. Its myeloablative dose can be safely administered to many patients, including the elderly. Fludarabine-ivBu combination is reported to be comparable or even better than conventional myeloablative conditioning regimens, such as Bu-Cy or TBI-Cy, for those 50 years and older. The cumulative incidence of early NRM post-transplant in patients in remission was more or less comparable to those undergoing the Seattle regimen consisting of Flu+TBI 2 Gy. Incorporating novel drugs into conditioning regimens may further reduce toxicity, particularly for patients not in remission. PMID- 29332880 TI - [Impact of genetic polymorphisms on post-transplant complications]. AB - Genetic association studies are now widely applied to various medical conditions and abnormalities. Unfortunately, it remains challenging to conduct such studies in cases that require hematopoietic stem cell transplantation (HSCT) because candidate patients usually have a complicated clinical background. In this field, a uniform cohort and well-designed protocol are critical to increasing the effectiveness of genetic association analyses, and parameters such as pre conditioning regimen, donor source, graft versus host disease and its prophylaxis, and disease status need to be considered. Our studies thus far have revealed that focusing on the relationship between drug metabolism-associated genes and drug-induced complications after HSCT could often offset the complicated clinical background. Thus, here we describe a genetic association study focused on complications after HSCT. PMID- 29332881 TI - [Mesenchymal stem cells for treatment of graft-versus-host disease]. AB - Steroid-refractory graft-versus-host disease (SR-GVHD) is one of the most important complication post allogeneic hematopoietic stem cell transplantation. Mesenchymal stem cells (MSCs) possess characteristic immunomodulatory features which are beneficial in the salvage treatment for SR-GVHD. Following the first case report in 2004, numerous clinical trials have shown encouraging results with MSC infusions for treating SR-GVHD. In Japan, two clinical trials have achieved favorable results, and subsequently in September 2015, MSC infusion became the first approved allogeneic cell therapy for SR-GVHD. Currently, MSCs are available at limited institutes, and all patients infused with MSCs have been registered in the post marketing survey. Based on the results of this survey, the establishment of guidelines for the proper use of MSCs is anticipated. Moreover, several groups have reported the efficacy of MSCs for chronic GVHD or GVHD prophylaxis. In the present review, current issues regarding the use of MSCs in the management of GVHD are summarized. PMID- 29332883 TI - ? PMID- 29332882 TI - [Role of long-term follow-up in management of late-onset post-hematopoietic stem cell transplant complications]. AB - As the number of long-term survivors after allogeneic hematopoietic stem cell transplantation (HSCT) has increased owing to advances in transplantation and supportive care techniques, the health and welfare of these survivors have come into focus. However, they are still at risks for various complications, including chronic graft-versus-host disease, infectious diseases, and secondary cancers even in the late period, which can not only interfere with the patient's quality of life (QOL) but also lead to death. The importance of long-term follow-up (LTFU) and management have been recently recognized, and nationwide systems to promote LTFU care in patients receiving HSCT, such as medical fee revision, publication of a LTFU guideline unique to Japan, and preparation of patient pocketbook, is under consideration. The number of medical facilities at LTFU outpatient clinic is also increasing; therefore, an optimal comprehensive support system may be established sooner or later. However, self-management by patients is essential to overcome late complications as well as to improve QOL after HSCT. Healthcare professionals should collaborate and continue to make the greatest possible efforts to educate patients regarding the risks of late complications and their prevention. PMID- 29332884 TI - ? PMID- 29332885 TI - ? PMID- 29332886 TI - Improved systemic delivery of insulin by condensed drug loading in a dimpled suppository. AB - The development of peptide therapeutics owing to the advances in biotechnology has overcome some unmet medical needs; however, the route of administration is still limited to injections. Systemic delivery of insulin via an enteral route remains a great challenge due to its instability and low mucosal permeability. In this study, we investigated the effect of drug condensation in a suppository on the efficacy of insulin after rectal administration. Suppositories with dimples are prepared by a mold method using a hard fat (Suppocire(r) AM). Insulin or fluorescein isothiocyanate-dextran (molecular weight: 3,000-5,000) (FD4) as a model of a hydrophilic macromolecule was loaded in the dimples, and sealed with other lipids with different melting points. The in vitro release test showed that the time to 50% drug release depends on the melting point of the lipid for sealing but not on the number of dimples. The suppositories with one-, or three dimple containing insulin and caprylocaproyl macrogol-8 glyceride (Labrasol(r)) were administered to rats at 0.5 U/head. The reduction in plasma glucose level was more significant for the one-dimple-type suppository than for the three dimple-type although the one-dimple-type suppository contained less amount of Labrasol by one-third compared to the three-dimple-type. These results suggest that condensation of an insulin dose in a limited surface area of a suppository improves systemic availability via the rectal route with a reduced amount of an absorption enhancer. PMID- 29332887 TI - Both triazolyl ester of ketorolac (15K) and YM155 inhibit the embryonic angiogenesis in ovo (fertilized eggs) via their common PAK1-survivin/VEGF signaling pathway. AB - 15 K is 1,2, 3-triazolyl ester of ketorolac, an old pain-killer, that blocks PAK1 by its R-form and inhibits COX-2 by its S-form. Mainly due to a robust increase in cell-permeability, 15K is over 500 times more potent than ketorolac in both anti-cancer and anti-PAK1 activities in cell culture with IC50 around 24 nM. However, 15K has no anti-AKT activity. Angiogenesis requires at least the kinase PAK1, and perhaps the kinase AKT as well, and is essential for a robust growth of solid tumors. Thus, in this study, we examined the potential antiangiogenic activity of 15K both in ovo and cell culture, prior to its in vivo (xenograft) anti-cancer activity test. The IC50 of 15K against the embryonic angiogenesis in ovo in CAM (chorioallantoic membrane) assay is around 1 nmol/egg. Surprizingly, however, 15K failed to inhibit the tube formation of HUVECs (human umbilical vein endothelial cells) in cell culture even at high as 150 MUM. In an attempt to solve this mystery, we tested both in ovo as well as HUVECs-based anti-angiogenic activity of a potent survivin-suppressor called YM155, which blocks PAK1, in addition to AKT. YM155 is slightly more potent than 15K in CAM assay with IC50 around 0.5 nmol/egg, and apparenty inhibits the tube formation of HUVECs with IC50 around 18 nM. According to a few previous findings with the direct PAK1 inhibitor frondoside A (FRA), the tube formation of HUVECs depends solely on PAK1. Thus, the failure of 15K to affect their tube formation is most likely due to their drug (15K)-resistance. Furthermore, unlike FRA, YM155 killed HUVECs with IC50 around 18 nM, clearly indicating that AKT is essential for survival of HUVECs, instead of their tube formation. PMID- 29332888 TI - Potential of Piper betle extracts on inhibition of oral pathogens. AB - In the present study, antimicrobial activity of Piper betle crude ethanol extract against 4 strains of oral pathogens; Candida albicans DMST 8684, C. albicans DMST 5815, Streptococcus gordonii DMST 38731 and Streptococcus mutans DMST 18777 was compared with other medicinal plants. P. betle showed the strongest antimicrobial activity against all tested strains. Fractionated extracts of P. betle using hexane, ethyl acetate, and ethanol, respectively, were subjected to antimicrobial assay. The result revealed that the fractionated extract from ethyl acetate (F EtOAc) possessed the strongest antimicrobial activity against all tested strains. Its inhibition zones against those pathogens were 23.00 +/- 0.00, 24.33 +/- 0.58, 12.50 +/- 0.70 and 11.00 +/- 0.00 mm, respectively and its minimum inhibitory concentrations were 0.50, 1.00, 0.50 and 1.00 mg/mL, respectively. Interestingly, the minimum concentration to completely kill those pathogens was the same for all strains and found to be 2.00 mg/mL. Killing kinetic study revealed that the activity of F-EtOAc was dose dependent. HPLC chromatograms of P. betle extracts were compared with its antimicrobial activity. An obvious peak at a retention time of 4.11 min was found to be a major component of F-EtOAc whereas it was a minor compound in the other extracts. This peak was considered to be an active compound of P. betle as it was consistent with the antimicrobial activity of F EtOAc, the most potential extract against the tested pathogens. It is suggested that F-EtOAc is a promising extract of P. betle for inhibition of oral pathogens. Separation and structure elucidation of the active compound of this extract will be further investigated. PMID- 29332889 TI - Effects of Caesalpinia sappan on pathogenic bacteria causing dental caries and gingivitis. AB - The present study explores antimicrobial activities of Caesalpinia sappan extracts against three strains of oral pathogenic bacteria; Streptococcus mutans DMST9567 (Smu9), Streptococcus mutans DMST41283 (Smu4), and Streptococcus intermedius DMST42700 (Si). Ethanol crude extract of C. sappan (Cs-EtOH) was firstly compared to that of other medicinal plants using disc diffusion method. Cs-EtOH showed significantly higher effective inhibition against all tested strains than other extracts and 0.12% chlorhexidine with the inhibition zone of 17.5 +/- 0.5, 18.5 +/- 0.0, and 17.0 +/- 0.0 mm against Smu9, Smu4, and Si, respectively. Three fractionated extracts of C. sappan using hexane, ethyl acetate, and ethanol, respectively, were further investigated. The fractionated extract from ethanol (F-EtOH) presented the strongest activities with the minimum bactericidal concentration (MBC) of 125-250 ug/mL. Killing kinetics of F-EtOH was depended on the bacterial species and the concentration of F-EtOH. Two-fold MBC of F-EtOH could kill all tested strains within 12 h whereas its 4-fold MBC showed killing effect against Si within 6 h. Separation of F-EtOH by column chromatography using chloroform/methanol mixture as an eluent yielded 11 fractions (F1-F11). The fingerprints of these fractions by high-performance liquid chromatography at 280 nm revealed that F-EtOH consisted of at least 5 compounds. F6 possessed the significantly highest antimicrobial activity among 11 fractions, however less than F-EtOH. It is considered that F-EtOH is the promising extract of C. sappan for inhibiting oral pathogenic bacteria and appropriate as natural antiseptic for further develop of oral hygiene products. PMID- 29332890 TI - In vitro oral epithelium cytotoxicity and in vivo inflammatory inducing effects of anesthetic rice gel. AB - In vitro cytotoxicity of lidocaine hydrochloride (LH) and prilocaine hydrochloride (PH) to oral epithelial cells, isolated from tissue specimens of healthy volunteers, were evaluated. Cell vitality after treating with 1-20% anesthetic solutions for 5 and 30 min was investigated using F-actin and 4',6 diamidino-2-phenylindole staining technique and observed by fluorescence microscopy. Vitality rate of more than 90% was found in all anesthetic groups at both durations whereas no survived cell was found in a positive control group (sodium dodecyl sulfate). Lactate dehydrogenase (LDH) assay was performed to confirm the safety of both anesthetic solutions. Cell culture medium after treating with LH or PH for 5 and 30 min were collected and analyzed using commercial kits. The results showed no significant difference between the test groups and negative control group (untreated culture) with low LDH levels. In vivo inflammatory inducing effect of 5, 10, 20% LH or PH loaded rice gels was investigated in healthy volunteers. Tumor necrosis factor alpha (TNF-alpha) in gingival cervicular fluid was determined by ELISA technique. It was found that the expression of TNF-alpha was not different from the baseline. The expression of this inflammatory mediator caused by the commercial gel was higher than those of both anesthetic rice gels. It might be due to the effects of other excipients in the formulation of the commercial product. It is concluded that LH or PH possess no cytotoxicity to oral epithelium and the developed rice gel base and LH and PH rice gels do not induce inflammatory effect to oral tissues. PMID- 29332891 TI - Protective effects of Phaseolus vulgaris lectin against viral infection in Drosophila. AB - Phytohemagglutinin (PHA) isolated from the family of Phaseolus vulgaris beans is a promising agent against viral infection; however, it has not yet been demonstrated in vivo. We herein investigated this issue using Drosophila as a host. Adult flies were fed lectin approximately 12 h before they were subjected to a systemic viral infection. After a fatal infection with Drosophila C virus, death was delayed and survival was longer in flies fed PHA-P, a mixture of L4, L3E1, and L2E2, than in control unfed flies. We then examined PHA-L4, anticipating subunit L as the active form, and confirmed the protective effects of this lectin at markedly lower concentrations than PHA-P. In both experiments, lectin feeding reduced the viral load prior to the onset of fly death. Furthermore, we found a dramatic increase in the levels of the mRNAs of phagocytosis receptors in flies after feeding with PHA-L4 while a change in the levels of the mRNAs of antimicrobial peptides was marginal. We concluded that P. vulgaris PHA protects Drosophila against viral infection by augmenting the level of host immunity. PMID- 29332892 TI - Digital PCR for determination of cytochrome P450 2D6 and sulfotransferase 1A1 gene copy number variations. AB - CYP2D6 and SULT1A1 occasionally show copy number variations (CNVs), with a larger number generally indicating greater enzymic activity. However, those variations are difficult to calculate using standard methods. With digital PCR, a recently introduced method for CNV analysis, DNA molecules are subjected to limited dilution and separated into nano-scale droplets prior to a PCR assay. Absolute quantitation of copy number can then be performed with high accuracy and sensitivity by determining the number of droplets showing an amplified signal for the target gene. This is the first report of analyses of CYP2D6 and SULT1A1 CNVs using a digital PCR method with blood sample from Japanese subject. Primers and probes were synthesized for the target and reference genes, and copy number calculation was performed using a QX200 Droplet Digital PCR System. Our results showed that the copy numbers in CYP2D6*5 hetero, non-CNV, and CYP2D6xN subjects were 1, 2, and 3 to 4, respectively. In addition, in non-CNV and multiplication subjects, the number of copies for SULT1A1 was 2 and 3 to 6, respectively. We found that the present digital PCR method was useful as well as accurate. In the future, a combined genotyping, allele distinction, and copy number calculation technique will be helpful for analysis of enzymic activity. PMID- 29332893 TI - Do scleroderma patients look young?: Evaluation by using facial imaging system. AB - These days various collagen supplements have widely been marketed. However, it has not been scientifically proved whether increasing collagen can actually prevent skin aging. Systemic sclerosis (SSc) is an autoimmune disease that is characterized by thickening of the skin caused by accumulation of collagen. In this study, we tried to evaluate facial skin characteristics and skin aging of SSc patients by using digital imaging system. As the result, the severity of wrinkles, texture and pores were significantly lower in SSc patients than control subjects. Among them, wrinkles showed better correlation with skin thickness score. Therefore, increased amount of collagen in scleroderma skin may directly affect wrinkles. In conclusion, attempt on collagen induction itself is reasonable and effective strategy in order to keep young appearance, although oral collagen supplementation may not directly reach to the skin. PMID- 29332894 TI - Bullous dermatosis on legs of elderly: A new clinical entity? AB - A lot of diseases occur on the skin of elderly persons. We report four elderly cases of bullous dermatosis that did not meet various differential diagnoses. Japanese, heart failure, atrophic skin and leg edema probably due to aging, as well as flaccid or tense bullae localized in legs were the common factors to our patients. Such conditions may be increased in coming aging society. Accordingly, it is worth regarding such symptom as the new clinical entity, which may comfort patients with similar condition and attract further attention. PMID- 29332895 TI - Breakthrough mucormycosis after voriconazole use in a case of invasive fungal rhinosinusitis due to Curvularia lunata. AB - Invasive fungal rhinosinusitis (FRS) is a potentially fatal illness requiring early diagnosis and aggressive treatment with surgery and antifungals. We report a case of chronic FRS in a recently diagnosed diabetic individual due to Curvularia lunata. Imaging revealed extension into the right orbit and right basifrontal lobe. This was further complicated by development of nosocomial mucormycosis which was attributed to voriconazole therapy. The patient responded well to debridement and amphotericin B based therapy. To our knowledge, there are no reported cases of invasive FRS due to Curvularia lunata. Also, breakthrough mucormycosis on voriconazole therapy is rarely seen in non-malignancy, non transplant settings. The possibility of rare fungal infections (community and nosocomial) should be entertained in developing settings where fungal spores are ubiquitous. PMID- 29332896 TI - Iron, Hematological Parameters and Blood Plasma Lipid Profile in Vitamin D Supplemented and Non-Supplemented Young Soccer Players Subjected to High Intensity Interval Training. AB - Vitamin D deficiency has been associated with increased risk for cardiovascular disease and anemia. Vitamin D-related changes in lipid profile have been studied extensively but the relationship between vitamin D and lipid metabolism is not completely understood. As both vitamin D and intermittent training may potentially affect iron and lipid metabolism, the aim of the study was to evaluate whether a daily supplementation of vitamin D can modulate the response of hematological and lipid parameters to high-intensity interval training (HIIT) in soccer players. Thirty-six young elite junior soccer players were included in the placebo-controlled, double-blind study. Participants were non-randomly allocated into either a supplemented group (SG, n=20, HIIT and 5,000 IU of vitamin D daily) or placebo group (PG, n=16, HIIT and sunflower oil). Hematological parameters were ascertained before and after the 8-wk training. The change score (post- and pre-training difference) was calculated for each individual and the mean change score (MCS) was compared between SG and PG using the t test and analysis of covariance. There were no differences between SG and PG at baseline. The red and white cell count, hemoglobin, hematocrit, MCHC, ferritin, and HDL-cholesterol changed significantly over the 8-wk HIIT. However, no significant differences in MCS were observed between SG and PG for any variable. A daily vitamin D supplement did not have any impact on alteration in hematological or lipid parameters in young soccer players in the course of high intensity interval training. PMID- 29332897 TI - Effect of Lithium on the Mechanism of Glucose Transport in Skeletal Muscles. AB - While lithium is known to stimulate glucose transport into skeletal muscle, the mechanisms of the increased glucose transport by lithium in skeletal muscle are not well defined yet. We excised epitrochlearis muscles from male Wistar rats and measured the transport rates of a glucose analog into lithium-, insulin-, and muscular contraction-stimulated skeletal muscle tissue and we also analyzed the levels of cell surface glucose transport 4 using a photolabeling and multicolor immunofluorescence method. In addition, we generated a cell line that stably expresses myc-tagged GLUT4 to measure the rates of GLUT4 internalization and externalization. Lithium significantly increased 2-DG glucose transport rate in skeletal muscles; however, it was significantly lower than the stimulation induced by the maximum concentration of insulin or tetanic contraction. But co treatment of lithium with insulin or tetanic contraction increased glucose transport rate by ~200% more than lithium alone. When skeletal muscle tissues were treated with lithium, insulin, and muscular contraction, the levels of cell surface GLUT4 protein contents were increased similarly by ~6-fold compared with the basal levels. When insulin or lithium stimuli were maintained, the rate of GLUT4myc internalization was significantly lower, and lithium was found to suppress the internalization of GLUT4myc more strongly. The lithium-induced increase in glucose uptake of skeletal muscles appears to increase in cell surface GLUT4 levels caused by decreased internalization of GLUT4. It is concluded that co-treatment of lithium with insulin and muscular contraction had a synergistic effect on glucose transport rate in skeletal muscle. PMID- 29332898 TI - Effect of Dietary Protein Levels on Protein Nutritional Status in Growing Female Rats Kept under Constant Darkness. AB - The purpose of this study was to clarify the effects of dietary protein levels on protein nutritional status in rats kept under constant darkness. Thirty-six 4-wk old female rats (F344 strain) were divided into six groups. Each group was given a diet with one of three different protein levels and kept under normal light and dark cycles (7:00-19:00 light period/19:00-7:00 dark period, N group) or under constant darkness (D group) for 4 wk. The protein levels of the diets were 10%, 20%, and 30% casein. The six groups are referred to as the N10%, N20%, N30%, D10%, D20%, and D30% groups. Body weight gain was low in the D groups, and that in the D30% group was much lower than that in the N30% group. The D30% group retained less nitrogen than the N30% group. As for the amount of urinary nitrogen excreted every 4 h, the values for the D-groups were higher than those for the N groups in the 11:00-15:00 periods, and that for the D30% group was higher than that for the N30% group in the 15:00-19:00 periods, which means that protein catabolism was higher in the D30% group. It was shown that when rats kept under constant darkness were fed a high-protein diet for 4 wk, their nitrogen retention decreased and their protein nutritional state dropped. PMID- 29332899 TI - Relationship between Dietary Protein or Essential Amino Acid Intake and Training Induced Muscle Hypertrophy among Older Individuals. AB - Dietary protein intake is critical for maintaining an optimal muscle mass, especially among older individuals. Although protein supplementation during resistance training (RT) has been shown to further augment training-induced muscle mass in older individuals, the impact of daily variations in protein intake on training-induced muscle mass has not been explored thus far. Therefore, this study aimed to investigate the relationship between the dietary protein and amino acid intake and RT-induced muscle hypertrophy among older individuals. Ten healthy older men (n=10; mean age=69+/-2 y; body weight (BW)=61.5+/-2.2 kg; height=1.65+/-0.02 m) participated in progressive RT performed 3 times/wk for 12 wk. Body composition (using DXA) and nutritional assessments (using a 3-d dietary record) were performed before and after the training period. Leg lean mass (LLM) increased significantly (15.0+/-0.8 vs. 15.4+/-0.8 kg, p<0.05) after RT, with no change in dietary nutrient intake. The average dietary protein intake was 1.62+/ 0.11 g/kg BW/d, while essential amino acids was 600+/-51 mg/kg BW/d. Although the correlation between the increase in LLM and dietary protein intake was not significant, a significant correlation was found between the increase in LLM and dietary essential amino acid (EAA) intake. Furthermore, there were significant correlations between the increase in LLM and protein as well as EAA (especially leucine) intake at breakfast among subjects with suboptimal protein intake (p<0.05). Our study findings indicate that dietary protein as well as EAA intake may be significant contributing factors in muscle hypertrophic response during RT among healthy older men. PMID- 29332900 TI - Changes in Thyroid Hormone Are Not Involved in Regulating Brain Protein Synthesis in Adults Rats Fed Ornithine. AB - Brain protein synthesis and the plasma concentration of growth hormone (GH) are sensitive to dietary ornithine. However, dietary ornithine does not increase brain protein synthesis in hypophysectomized rats. Because hypophysectomy may decrease the secretion of thyroid stimulated hormone (TSH), we assessed whether the regulation of brain protein synthesis was mediated by changes in the plasma concentrations of thyroid hormone and ghrelin in the 6-propyl-2-thiouracil (PTU, thyroid inhibitor)-treated or control adult rats fed ornithine. The four experimental groups consisted of PTU-treated and control (24-wk-old) male rats given 0% or 0.7% ornithine-HCl added to a 20% casein diet. The plasma concentrations of GH and ghrelin, and the fractional rates of protein synthesis and RNA activity [g protein synthesized/(g RNA*d)] in the brains were significantly increased after treatment with the 20% casein + 0.7% ornithine compared with the 20% casein diet alone in both the PTU-treated and control groups. Ornithine supplementation to the basal diet did not affect the plasma concentration of T3. The RNA concentration (mg RNA/g protein) was not related to the fractional rate of protein synthesis in the brain regions. The results suggest that dietary ornithine likely increases the rate of brain protein synthesis in control and PTU-treated rats, and that the ornithine-induced increase in the GH concentration may stimulate mainly brain protein synthesis via ghrelin. RNA activity is at least partly related to the fractional rate of brain protein synthesis. PMID- 29332901 TI - The Relationship between Habitual Dietary Intake and Gut Microbiota in Young Japanese Women. AB - Recent studies have shown that dietary content affects the health of the host by changing the gut microbiota. However, little is known about the association of microbiota composition with habitual diet in Japanese people. Here, we aimed to clarify the relationship between the fecal microbiota and habitual dietary intake of micronutrients, macronutrients and food groups in healthy young Japanese women. Analysis of fecal microbiota was performed by the terminal restriction fragment length polymorphism (T-RFLP) method, and a dietary survey was conducted over three consecutive days using a weighed food record method. T-RFLP pattern analysis divided the subjects into two clusters, where cluster A group had a high relative abundance of Bacteroides and Clostridium cluster IV, and cluster B group had a high relative abundance of Bifidobacterium and Lactobacillales. Cluster A group also had lower intakes of iron and vitamin K and higher intakes of mushrooms and snacks than cluster B group. Analysis of Spearman rank correlations found several significant relationships between fecal microbiota and intake of nutrients and food groups. Bifidobacterium was correlated with iron intake, and Clostridium cluster XI was negatively correlated with intakes of cholesterol and eggs. These results suggest that dietary habits may strongly affect Bifidobacterium, Bacteroides and Clostridium abundance in the gut microbiota of young Japanese women. This is the first study to show relationships between fecal microbiota and habitual dietary intake in Japanese people. Accumulation of results from similar studies will help to elucidate the relationships between dietary intake and diseases in Japanese people. PMID- 29332902 TI - Effects of Enzymatically Synthesized Glycogen and Exercise on Abdominal Fat Accumulation in High-Fat Diet-Fed Mice. AB - The combination of diet and exercise is the first choice for the treatment of obesity and metabolic syndrome. We previously reported that enzymatically synthesized glycogen (ESG) suppresses abdominal fat accumulation in obese rats. However, the effect of the combination of ESG and exercise on abdominal fat accumulation has not yet been investigated. Our goal in this study was therefore to evaluate the effects of dietary ESG and its combination with exercise on abdominal fat accumulation in high-fat diet (HFD)-fed mice. Male ICR mice were assigned to four groups: HFD, HFD containing 20% ESG, HFD with exercise, HFD containing 20% ESG with exercise. Treadmill exercise was performed for 3 wk (25 m/min, 30 min/d, 3 d/wk) after 5-d adaption to running at that speed. Both ESG and exercise significantly reduced the weights of abdominal adipose tissues. In addition, the combination of ESG and exercise significantly suppressed abdominal fat accumulation, suggesting that ESG and exercise showed an additive effect. Exercise significantly increased the mRNA levels of lipid metabolism-related genes such as lipoprotein lipase, peroxisome proliferator-activated receptor delta; factor-delta (PPARdelta), carnitin palmitoyltransferase b, adipose triglyceride lipase (ATGL), and uncoupling protein-3 in the gastrocnemius muscle. On the other hand, dietary ESG significantly decreased the mRNA levels of PPARdelta and ATGL in the gastrocnemius muscle. These results suggest that the combined treatment of ESG and exercise effectively suppresses abdominal fat accumulation in HFD-fed mice by different mechanisms. PMID- 29332903 TI - Galactose Is the Limiting Factor for the Browning or Discoloration of Cheese during Storage. AB - The browning or discoloration of cheese is often observed during long-time ripening or aging. In the present study, we identified galactose as a limiting factor for the browning, and clarified the involvement of the Maillard reaction for the discoloration. A precursor of browning of Cheddar cheese was isolated by procedures of solvent extraction and chromatography. D-Galactose and D-lactose were identified as a precursor of browning of Cheddar cheese A and B, respectively. Cheddar cheese (A, B, and C), sugar-added cheese, and nine kinds of retail cheese were stored at 4 to 70oC for 0 to 10 d, before the L*-, a*-, and b* values and sugar contents of each sample were measured. Cheese to which galactose was added turned brown more intensively during storage than the non-added control and the other sugar-added cheese. The more galactose was added, the more intensive the browning of the cheese appeared. The decrease in galactose correlated with the DeltaL*-, Deltaa*-, Deltab*-, and DeltaE-values indicating the browning or discoloration of cheese samples. The decrease in sugars of nine kinds of retail cheese during storage also correlated with the DeltaL*-, Deltaa* , and DeltaE-values of these cheese samples. These results clearly indicate that sugars, especially galactose, in cheese are an important factor for the browning of cheese during storage. In general, a high amount of amino acids, peptides, and proteins exists in ripe or mature cheese. Therefore, sugars, especially galactose, were considered to be the limiting factor for the Maillard reaction causing the browning of ripe or mature cheese during storage. PMID- 29332904 TI - Detection of Fucoidan in Urine after Oral Intake of Traditional Japanese Seaweed, Okinawa mozuku (Cladosiphon okamuranus Tokida). AB - Seaweed has been considered an indigestible food. Fucoidan, which is found abundantly in seaweed, especially in Cladosiphon okamuranus (Okinawa mozuku), has a high molecular weight and has been long believed to be hardly absorbed in the human digestive system due to a lack of certain digestive enzymes. We previously reported that fucoidan can be detected in serum and urine after oral intake of purified fucoidan in humans and rats. However, it is unclear whether the fucoidan in mozuku can be absorbed after digestion of mozuku. Therefore, we attempted to detect fucoidan in urine before and after mozuku intake. We determined the fucoidan concentration in urine after oral intake of Okinawa mozuku and urinary fucoidan was detected in several volunteers. In conclusion, these results suggest that fucoidan in mozuku can be absorbed after ingestion of mozuku. PMID- 29332905 TI - Egg White Hydrolysate Improves Glucose Tolerance in Type-2 Diabetic NSY Mice. AB - We have previously reported that chicken egg white (EW) and low-allergenic EW hydrolysate (EWH) suppressed ectopic fat accumulation and improved serum glucose and insulin levels. In this study, the dietary effects of EW and EWH on glucose tolerance were investigated in different ways to clarify the effect of EW and EWH on intestinal glucose absorption. Type 2 diabetic Nagoya-Shibata-Yasuda mice were divided into four groups: a low-fat and low-sucrose casein-based diet group (NL); high-fat and high-sucrose (HFS) casein-based diet group (NH); HFS EW-based diet group (NE); and HFS EWH-based diet group (NEH). Mice were fed their respective diets for 8 wk. At the end of the 6th and 7th week, an oral glucose tolerance test (OGTT) and insulin tolerance test (ITT) were respectively conducted in experiment A. At the end of the 7th week, an intraperitoneal glucose tolerance test (ipGTT) was conducted in experiment B. In experiment A, the plasma glucose level was suppressed in the NE group during both OGTT and ITT, and suppressed in the NEH group during OGTT, but not during ITT. In experiment B, the plasma glucose level was similarly suppressed in the NEH group during ipGTT, but the suppressive effect was weakened compared to OGTT. Plasma insulin level was lower in the NE and NEH groups in both experiments. Fecal triacylglycerol excretion was increased in the NE and NEH groups in experiment A and liver triacylglycerol content was suppressed in the NE group in experiment B. These findings suggested that in addition to improving fat metabolism, EWH improves glucose tolerance via mechanisms related and unrelated to small intestinal function. PMID- 29332906 TI - A Nuclear Factor Involved in Transcriptional Regulation of the AREBP Gene. AB - The AICAR responsive element binding protein (AREBP) suppresses transcription of the gluconeogenic enzyme genes in response to AICAR treatment. Moreover, overexpression of AREBP also suppresses gluconeogenic gene expressions in animals, indicating that AREBP plays an important role in gluconeogenesis. Through a combination of systematic analyses of the AREBP gene promoter and assays for DNA-protein interaction, we identified a nuclear factor involved in tissue-specific expression of AREBP. By targeting this nuclear factor, pharmacological or nutraceutical induction of AREBP gene expression is expected to reduce blood glucose levels in patient with insulin resistance. PMID- 29332907 TI - Patients' Characteristics and Clinical Course of Hypertrophic Cardiomyopathy in a Regional Japanese Cohort - Results From Kochi RYOMA Study. AB - BACKGROUND: There have been few studies on the clinical course of hypertrophic cardiomyopathy (HCM) in a community-based patient cohort in Japan.Methods and Results:In 2004, we established a cardiomyopathy registration network in Kochi Prefecture (the Kochi RYOMA study) that consisted of 9 hospitals, and finally, 293 patients with HCM were followed. The ages at registration and at diagnosis were 63+/-14 and 56+/-16 years, respectively, and 197 patients (67%) were male. HCM-related deaths occurred in 23 patients during a mean follow-up period of 6.1+/-3.2 years. The HCM-related 5-year survival rate was 94%. In addition, a total of 77 cardiovascular events that were clinically severe occurred in 70 patients, and the HCM-related 5-year event-free rate was 80%. Multivariate Cox proportional hazards model analysis showed that the presence of NYHA class III at registration was a significant predictor of HCM-related deaths and that the presence of atrial fibrillation, lower fractional shortening and presence of left ventricular outflow tract obstruction in addition to NYHA class III were significant predictors of cardiovascular events. CONCLUSIONS: In our unselected registry in an aged Japanese community, HCM mortality was favorable, but one fifth of the patients commonly suffered from HCM-related adverse cardiovascular events during the 5-year follow-up period. Careful management of HCM patients is needed, particularly for those with the above-mentioned clinical determinants. PMID- 29332908 TI - Optical Coherence Tomography Guidance in Management of Acute Coronary Syndrome Caused by Plaque Erosion. AB - For several decades, most physicians have believed that acute coronary syndrome (ACS) is caused by coronary thrombosis resulting from rupture of vulnerable plaque characterized by a thin fibrous cap overlying a large necrotic core and massive inflammatory cell infiltration. However, nearly one-third of ACS cases are caused by plaque erosion characterized by intact fibrous cap, less or absent necrotic core, less inflammation, and large lumen. Because of the limitations of current imaging modalities, including angiography and intravascular ultrasound, the importance of plaque erosion as a cause of acute coronary events is less well known. Optical coherence tomography (OCT) as an emerging modality with extremely high resolution is the only intravascular imaging modality available for identification of plaque erosion in vivo, which provides new insight into the mechanism of ACS. More importantly, the introduction of OCT to clinical practice enables us to differentiate the patients with ACS caused by plaque erosion from those caused by plaque rupture, thereby providing precise and personalized therapy based on the different underlying mechanisms. We systematically review the morphological characteristics of plaque erosion identified by OCT and its implications for the management of ACS. PMID- 29332909 TI - Type 2 Myocardial Infarction - An Evolving Entity. AB - Type 2 myocardial infarction (T2MI) refers to myocardial necrosis caused by an imbalance in myocardial oxygen supply and demand and in the absence of acute coronary thrombosis. Despite growing recognition of this entity, there remains little understanding of the pathophysiology and uncertainty over the diagnostic criteria for this subtype of MI. Alarmingly, recent studies suggest that a diagnosis of T2MI pertains a prognosis similar to, if not worse than, type 1 MI. With increasing clinical use of high-sensitivity cardiac troponin assays, the frequency of recognition of T2MI is expected to increase. Yet, there remains a scarcity of prospective studies examining this cohort of patients, let alone randomized clinical trials identifying optimum treatment strategies. Further evaluation of the prevalence, pathophysiology and management of this patient cohort is warranted by the scientific community. PMID- 29332910 TI - Successful Infant Pneumonectomy with Unilateral Pulmonary Artery Occlusion Test. AB - The use of unilateral pulmonary artery occlusion (UPAO) test for the preoperative evaluation of pneumonectomy was reported in adult patients. On the contrary, in infants, no strategies have yet been recommended to predict hemodynamics after pneumonectomy, nor has use of the UPAO test been reported. We describe the first case of infant with abnormal pulmonary circulation in whom successful pneumonectomy was performed after preoperative evaluation using UPAO test. Right pneumonectomy was planned for an 8-month-old girl, because of decreased right pulmonary function, high risk of pneumothorax, and impaired left lung expansion due to overexpansion caused by severe left bronchial stenosis and bronchomalacia. However, she had also prolonged pulmonary hypertension and there was difficulty in accurate echocardiographic evaluation of its severity due to concomitant left pulmonary artery stenosis. Furthermore, contrast-enhanced computer tomography suggested a certain degree of right pulmonary venous flow, discordant with the result showing scarce right pulmonary flow in perfusion scintigraphy. Predicting postoperative hemodynamic changes was therefore considered difficult. To evaluate these concerns, we performed cardiac catheterization and UPAO test to simulate postoperative hemodynamics. Pulmonary arteriography showed decreased but significant right pulmonary arterial and venous flows. Measurements including pulmonary artery pressure and cardiac index showed no marked changes after occlusion. Based on UPAO test results, the operation was successfully performed and hemodynamics remained stable postoperatively. The UPAO test may be useful for infants with cardiopulmonary impairment to evaluate the tolerability of pneumonectomy. PMID- 29332911 TI - Impact of Continuous Administration of Tolvaptan on Preventing Medium-Term Worsening Renal Function and Long-Term Adverse Events in Heart Failure Patients with Chronic Kidney Disease. AB - Tolvaptan (TLV) has an inhibiting effect for worsening renal function (WRF) in acute decompensated heart failure (HF) patients. However, there are limited data regarding the effect of continuous TLV administration on medium-term WRF.This was a retrospective observational study in hospitalized HF patients with chronic kidney disease (CKD). TLV was administered to those patients with fluid retention despite standard HF therapy. We compared 34 patients treated with TLV (TLV group) to 33 patients treated with conventional HF therapy with high-dose loop diuretics (furosemide >= 40 mg) (Loop group). Clinical outcomes, including the incidence of medium-term WRF, defined as increase of serum creatinine > 0.3 mg/dL, at 6 months after discharge and adverse events rate, were evaluated.Baseline patient characteristics were not different between the TLV and Loop group. The TLV group consisted of less frequent use of loop diuretics and carperitide compared with the Loop group. The incidence of medium-term WRF was significantly lower in the TLV group than in the Loop group (3.2% versus 31.0%, P = 0.002). Multivariate logistic analysis showed that the TLV non-user was an independent predictor of medium-term WRF. Kaplan-Meier analysis revealed that the long-term event-free survival was significantly higher in the TLV group (log-rank P = 0.01).Continuous administration of TLV may reduce the risk of medium-term WRF, resulting possibility in improvement of long-term adverse outcomes in HF patients with CKD. PMID- 29332913 TI - Early Extubation in the Operating Room after Congenital Open-Heart Surgery. AB - Early extubation in the operating room after congenital open-heart surgery is feasible, but extubation in the intensive care unit after the operation remains common practice at many institutions. The purpose of this study was to evaluate retrospectively the adequacy of our early-extubation strategy and exclusion criteria through analysis based on the Risk Adjustment in Congenital Heart Surgery method (RACHS-1).This retrospective analysis included 359 cases requiring cardiopulmonary bypass (male, 195; female, 164; weight > 3.0 kg; aged 1 month to 18 years). Neonates and preoperatively intubated patients were excluded. Other exclusion criteria included severe preoperative pulmonary hypertension, high-dose catecholamine requirement after cardiopulmonary bypass, delayed sternal closure, laryngomalacia, serious bleeding, and delayed awakening. The early-extubation rates were compared between age groups and RACHS-1 classes.Overall, 83% of cases (298/359) were extubated in the operating room, classified by RACHS-1 categories as follows: 1, 59/59 (100%); 2, 164/200 (84%); 3, 61/78 (78%); and 4-6, 10/22 (45%). The early extubation rate in categories 1-3 (86%, 288/337) was significantly higher than for categories 4-6 (45.5%, 10/22) (P < 0.001). Because they met one of the exclusion criteria, 61 patients (17%) were not extubated in the operating room. Eight patients (2.7%) required re-intubation after early extubation in the operating room, and longer operation time was significantly associated with re-intubation (P < 0.001).Extubation in the operating room after congenital open-heart surgery was feasible based on our criteria, especially for patients in the low RACHS-1 categories, and involves a very low rate of re intubation. PMID- 29332912 TI - Impairment of Iodine-123-Metaiodobenzylguanidine (123I-MIBG) Uptake in Patients with Pulmonary Artery Hypertension. AB - According to recent studies, lung uptake of iodine-123-metaiodobenzylguanidine (123I-MIBG) is impaired in many lung diseases and low lung uptake of 123I-MIBG suggests endothelial dysfunction of the pulmonary artery. 123I-MIBG scintigraphy in patients with pulmonary hypertension (PH) has not yet been clinically evaluated. We hypothesized that the lung uptake of 123I-MIBG is reduced in patients with PH and differs among PH subtypes. The purpose of the present study was to analyze the lung uptake of 123I-MIBG in patients with PH and compare it with the data obtained by echocardiography or right heart catheterization. 123I MIBG scintigraphy was performed in 286 consecutive patients from 2003 to 2014. We enrolled 21 patients with PH and 8 control patients. The 21 patients with PH were categorized into those with pulmonary artery hypertension (PAH, n = 12) and those with chronic thromboembolic pulmonary hypertension (CTEPH, n = 9). The mean pulmonary artery pressure was not significantly different between patients with CTEPH and PAH (37.7 +/- 6.8 versus 32.3 +/- 5.3 mmHg respectively; P = 0.054). There were no significant differences in any other hemodynamic parameters between the two groups. The lung uptake of 123I-MIBG in PAH patients (early image: 1.54 +/- 0.18, delayed image: 1.41 +/- 0.16) was significantly lower than that of CTEPH patients (early image: 2.17 +/- 0.25, P < 0.0001; delayed image: 1.99 +/- 0.20, P = 0.0001, adjusted for age and World Health Organization classification) and controls (early image: 2.32 +/- 0.27, P = 0.0007; delayed image: 1.92 +/- 0.19, P = 0.0007). In conclusion, we found for the first time that the lung uptake of 123I-MIBG in patients with PAH is lower than that in patients with CTEPH and controls. PMID- 29332914 TI - Long-Term Clinical Outcomes after Treatment with Excimer Laser Coronary Atherectomy for In-Stent Restenosis of Drug-Eluting Stent. AB - Excimer laser coronary atherectomy (ELCA) has been used for the treatment of complex percutaneous coronary intervention (PCI) such as in-stent restenosis (ISR). However, little information was provided about the clinical outcomes after treatment with ELCA for ISR of drug-eluting stents (DES). This study aimed to investigate the long-term clinical outcomes after PCI with ELCA for ISR of DES.A total of 81 consecutive patients with 87 lesions who underwent PCI for ISR of DES were included. Patients were classified into a PCI with ELCA group (23 patients with 24 lesions) and a PCI without ELCA group (58 patients with 63 lesions). The major adverse cardiac events (MACE) were evaluated. The mean duration of clinical follow-up was 29.8 +/- 11.6 months. The incidences of diffuse restenosis and AHA/ACC type B2 or C lesion in the PCI with ELCA group were higher than in the PCI without ELCA group. Quantitative coronary angiography showed the acute luminal gain in the PCI with ELCA group was greater than in the PCI without ELCA group (1.64 +/- 0.48 mm versus 1.26 +/- 0.42 mm, P < 0.001). There were no significant differences in all-cause death, myocardial infarction, or target lesion revascularization between the 2 groups. Multivariate analysis due to a Cox proportional-hazards model showed that multivessel disease was an independent predictor of MACE (hazard ratio 3.05, 95% confidence interval 1.22 to 7.61, P = 0.02). ELCA was effective as an atherectomy device for lumen enlargement and optimal lesion preparation. Even though ELCA was used for ISR of DES in significantly more complex lesions, the long-term clinical outcomes were favorable and similar. PMID- 29332915 TI - Calcified Amorphous Tumor-Induced Acute Cerebral Infarction. AB - We report the case of a 38-year-old woman who was admitted for acute cerebral infarction linked to a cardiac calcified amorphous tumor (CAT) and related mitral annular calcification (MAC). The cardiac mass was removed, and mitral valve replacement surgery was performed. Pathological examination revealed an amorphous accumulation of degenerating material within both lesions, indicating that build up of calcium along the mitral annulus and subsequent rupture of the fibrotic tissue may be involved in the initiation and progression of CAT. PMID- 29332916 TI - MiR-135a Promotes Inflammatory Responses of Vascular Smooth Muscle Cells From db/db Mice via Downregulation of FOXO1. AB - It has been shown that microRNAs (miRNAs) greatly affect the functions of vascular smooth muscle cells (VSMC), but the effects of mRNAs under diabetic conditions remain unclear.Using a model of diabetic db/db mice, we studied the functions of microRNA-135a (miR-135a) during VSMC dysfunction.Compared to control WT mice, miR-135a expression in VSMC was significantly increased while the level of forkhead box O1 (FOXO1) protein decreased significantly. After transfecting miR-135a mimics into VSMC, the expression of FOXO1 was decreased, while cyclooxygenase-2 (COX-2) and monocyte chemoattractant protein-1 (MCP-1) expression levels were increased, thus promoting the interaction between monocytes and WT VSMC. On the other hand, transfection of an miR-135a inhibitor reversed the activated interaction between monocytes and db/db VSMC. The pro inflammatory responses could also be enhanced by using siRNAs to silence the FOXO1 gene in WT VSMC, suggesting a negative regulatory role of FOXO1. FOXO1 siRNAs and miR-135a mimics could both enhance the transcriptional activity of COX 2 promoter. Using chromatin immunoprecipitation, we found that in db/db VSMC, the occupancy in promoter regions of inflammatory genes by FOXO1 was reduced.miR-135a increased the inflammatory responses of VSMC involved in complications of vascular diseases by downregulating the expression of FOXO1. PMID- 29332917 TI - Significance of Sarcopenia Evaluation in Acute Decompensated Heart Failure. AB - In patients with chronic heart failure (HF), the clinical importance of sarcopenia has been recognized in relation to disease severity, reduced exercise capacity, and adverse clinical outcome. Nevertheless, its impact on acute decompensated heart failure (ADHF) is still poorly understood. Dual-energy X-ray absorptiometry (DXA) is a technique for quantitatively analyzing muscle mass and the degree of sarcopenia. Fat-free mass index (FFMI) is a noninvasive and easily applicable marker of muscle mass.This was a prospective observational cohort study comprising 38 consecutive patients hospitalized for ADHF. Sarcopenia, derived from DXA, was defined as a skeletal muscle mass index (SMI) two standard deviations below the mean for healthy young subjects. FFMI (kg/m2) was calculated as 7.38 + 0.02908 * urinary creatinine (mg/day) divided by the square of height (m2).Sarcopenia was present in 52.6% of study patients. B-type natriuretic peptide (BNP) levels were significantly higher in ADHF patients with sarcopenia than in those without sarcopenia (1666 versus 429 pg/mL, P < 0.0001). Receiver operator curves were used to compare the predictive accuracy of SMI and FFMI for higher BNP levels. Areas under the curve for SMI and FFMI were 0.743 and 0.717, respectively. Multiple logistic regression analysis showed sarcopenia as a predictor of higher BNP level (OR = 18.4; 95% CI, 1.86-181.27; P = 0.013).Sarcopenia is associated with increased disease severity in ADHF. SMI based on DXA is potentially superior to FFMI in terms of predicting the degree of severity, but FFMI is also associated with ADHF severity. PMID- 29332918 TI - Plasmatic MicroRNA Signatures in Elderly People with Stable and Unstable Angina. AB - We aimed to investigate the distinctive miRNA profiles in the plasma of elderly patients with unstable angina (UA) and stable angina (SA), and to find more effective markers of UA in elderly people. We compared miRNA expression levels in plasma samples from 10 elderly patients with UA and 10 elderly patients with SA by using microarray-based miRNA chip, and then performed validation with Real time PCR. Mir-1202, mir-1207-5p, and mir-1225-5p showed a statistically significant down-regulation (P < 0.05), while mir-3162-3p showed an up-regulation (P < 0.05) during validation. Among all single miRNAs, miR-3162-3p showed the highest discriminatory power in the diagnosis of elderly patients with UA (AUC: 0.79, 95% CI: 0.675-0.905). The discriminatory power of a panel of three miRNAs (mir-3162-3p/mir-1225-5p/mir-1207-5p) was highest with an AUC of 0.91 (95% CI: 0.84-0.98), followed by mir-3162-3p/mir-1225-5p (AUC: 0.833, 95% CI: 0.732-0.934) and mir-3162-3p/mir-1207-5p (AUC: 0.817, 95% CI: 0.712-0.922). In conclusion, multi-miRNA panel could provide higher diagnostic value for the diagnosis of elderly patients with UA. PMID- 29332919 TI - High-Intensity Interval Training for Severe Left Ventricular Dysfunction Treated with Left Ventricular Assist Device. AB - Aerobic training based on anaerobic threshold (AT) is well-known to improve cardiac function, exercise capacity, and long-term outcomes of patients with heart failure. Recent reports suggested that high-intensity interval training (HIIT) for patients with cardiovascular disease may improve cardiopulmonary exercise capacity. We present a 61-year-old male patient of severe left ventricular dysfunction with left ventricular assisted device (LVAD). Following HIIT for 8 weeks, exercise capacity and muscle strength have improved without worsening left ventricular function. Our case showed the possibility that HIIT was feasible and effective even in patients with LVAD. PMID- 29332920 TI - Aorto-Cutaneous Fistula after Surgical Treatment of Stanford Type A Aortic Dissection. AB - An aorto-cutaneous fistula is a rare complication that occurs after aortic surgery. Due to its rarity, postoperative complications are not normally highlighted in most standard teaching. We report here a case of aorto-cutaneous fistula after surgical treatment of a Stanford type A aortic dissection (AD) in a 67-year-old Chinese male. The patient presented with severe right heart dysfunction and a mass was found in the upper-middle of his chest, which started bleeding in the next years. On admission, preoperative aortic computed tomography angiography (CTA) showed a huge hematoma located in the anterior superior mediastinum and a shunt between the embedding cavity of the aortic root and right atrium. An emergent procedure was performed. Intraoperatively, we found two leaks approximately 2 mm from the anastomosis of the greater curvature of the ascending aortic graft and stented graft after the hematoma was cleared and we confirmed the shunt had a large amount of blood flow after a right atrium incision. After the surgery, the patient was diagnosed with a cerebral hemorrhage, and his family decided to refuse therapy on the third postoperative day (p.o.d.). PMID- 29332921 TI - Early Diastolic Left Ventricular Relaxation in Normal Neonates is Influenced by Ventricular Stiffness and Longitudinal Systolic Function. AB - Tissue Doppler velocity during early diastole (e') is one of the most feasible and reproducible echocardiographic assessments to reflect active relaxation of the left ventricle. Although several reports have described the mechanisms of temporal diastolic dysfunction in the early neonatal period, factors influencing diastolic function have not been determined. The purpose of this study was to elucidate factors significantly influencing e' in the early neonatal period.A total of 179 consecutive normal neonates underwent echocardiographic studies performed at 0 days and 5-10 days after birth. The statistical relationships between e' and age, body weight, mean blood pressure, heart rate, shortening fraction of the left ventricle, peak systolic motion velocity (s'), early diastolic transmitral flow velocity over annulus velocity, Tei index, and diastolic wall strain (DWS) were analyzed.Between the 0 days and 5-10-days-after birth groups, significant differences were shown in mean blood pressure, shortening fraction of left ventricle, e', and Tei index. Age, body weight, mean blood pressure, s', and DWS showed significant correlations with e'. In multivariate regression analysis within these parameters, s' (beta = 0.6119, P < 0.0001) and DWS (beta = 0.1216, P = 0.0321) showed positive correlations with e'.Longitudinal systolic motion velocity and ventricular wall stiffness of the left ventricle influence diastolic relaxation in normal neonates. Age, body weight, and circumferential systolic function are not significant factors. PMID- 29332922 TI - Role of Gene Polymorphisms/Haplotypes and Plasma Level of TGF-beta1 in Susceptibility to In-Stent Restenosis Following Coronary Implantation of Bare Metal Stent in Chinese Han Patients. AB - Transforming growth factor (TGF)-beta1 has been implicated in the pathogenesis of restenosis. However, the role of TGF-beta1 polymorphisms in development of in stent restenosis (ISR) after coronary bare metal stent (BMS) implantation in Chinese Han population has not been reported to date. The aim of this study was to explore the association between TGF-beta1 gene polymorphisms (-509C/T and 869T/C) and its plasma level in Chinese Han patients with BMS-ISR.We investigated 419 patients after successful coronary stent placement. All patients were reexamined by angiography. Genotyping for the two TGF-beta1 gene polymorphisms was performed using polymerase chain reaction-restriction fragment length polymorphism analysis. Plasma TGF-beta1 levels were measured by enzyme-linked immunosorbent assay.Ninety-two patients (21.96%) developed ISR during the follow up period. The multivariable analysis adjusted for potential confounders and it revealed that the C allele of TGF-beta1 869T/C polymorphism was linked to an increased risk of ISR in both additive (Per each C allele) and dominant (TC+CC versus TT) models with odds ratios (ORs) of 1.88 (95% confidence interval [CI]: 1.21-2.84, P = 0.008) and 2.52 (95% CI: 1.40-4.80, P = 0.005), respectively. In accord with this, C-dominant CC/CT genotype was linked to higher plasma TGF-beta1 level compared to TT genotype. One haplotype (TC) (-509T, +869C) was associated with an increased risk for ISR (OR = 1.48, 95% CI: 1.06-2.06, P = 0.010).The C allele of TGF-beta1 869T/C polymorphism, correlated with high plasma TGF-beta1 level, represented an independent risk factor for BMS-ISR in Chinese Han patients with coronary artery disease. PMID- 29332923 TI - Heart Failure as an Aging-Related Phenotype. AB - The molecular pathophysiology of heart failure, which is one of the leading causes of mortality, is not yet fully understood. Heart failure can be regarded as a systemic syndrome of aging-related phenotypes. Wnt/beta-catenin signaling and the p53 pathway, both of which are key regulators of aging, have been demonstrated to play a critical role in the pathogenesis of heart failure. Circulating C1q was identified as a novel activator of Wnt/beta-catenin signaling, promoting systemic aging-related phenotypes including sarcopenia and heart failure. On the other hand, p53 induces the apoptosis of cardiomyocytes in the failing heart. In these molecular mechanisms, the cross-talk between cardiomyocytes and non-cardiomyocytes (e,g,. endothelial cells, fibroblasts, smooth muscle cells, macrophages) deserves mentioning. In this review, we summarize recent advances in the understanding of the molecular pathophysiology underlying heart failure, focusing on Wnt/beta-catenin signaling and the p53 pathway. PMID- 29332924 TI - Multiple Recurrent Pseudoaneurysms after Endovascular Repair of Abdominal Aortic Aneurysm in a Patient with Behcet's Disease. AB - In Behcet's disease (BD) patients, endovascular repair is a reasonable alternative treatment for aortic aneurysms to avoid postoperative anastomotic pseudoaneurysms. However, there are some complications that may occur after endovascular repair. We herein report the case of a 40-year-old man with active BD developed recurrent aortic pseudoaneurysms at the proximal and distal margins of the stent graft and a femoral puncture site pseudoaneurysm 3 months after endovascular abdominal aortic aneurysm (AAA) repair. The aortic pseudoaneurysms were treated endovascularly, including the use of the chimney technique for the proximal pseudoaneurysm close to the renal arteries and the femoral pseudoaneurysm with surgical excision and reconstruction. Intensive immunosuppressive therapy was initiated immediately after the operation. The patient is in good condition without any complications at 8-month follow-up. This case suggests the utility of the chimney technique and postoperative immediate intensive immunosuppressive therapy in treating recurrent aortic pseudoaneurysms in emergency, active BD patients. PMID- 29332925 TI - Pulmonary Artery Pseudoaneurysm Secondary to Lung Inf lammation. AB - Pulmonary artery aneurysms (PAA) and pseudoaneurysms (PAP) are caused by infections, vasculitis, trauma, pulmonary hypertension, congenital heart disease, and connective tissue disease. Most cases of such aneurysm occur in the trunk or major branches of the pulmonary artery, while the peripheral type is less common. The treatment modalities are medical therapy, surgery, and percutaneous catheter embolization. The mortality rate associated with rupture is approximately 50%. We encountered a case of a 53-year-old man with a pulmonary artery pseudoaneurysm secondary to pneumonia and cavity formation during chemotherapy for acute myeloid leukemia (AML). In diagnosis, contrast-enhanced chest computed tomography (CT) scan and pulmonary angiography were very useful. He was treated with right middle and lower lobectomy. After 1-month follow-up, he could restart additional chemotherapy. PMID- 29332927 TI - The response of common marmoset immunity against cedar pollen extract. AB - The in vivo model of pollinosis has been established using rodents, but the model cannot completely mimic human pollinosis. We used Callithrix jacchus, the common marmoset (CM), to establish a pollinosis animal model using intranasal weekly administration of cedar pollen extract with cholera toxin adjuvant. Some of the treated CMs exhibited the symptoms of snitching, excess nasal mucus and/or sneezing, but the period was very short, and the symptoms disappeared after several weeks. The CD4+CD25+ cell ratio in the peripheral blood increased in CMs quickly after the nasal administration of cedar pollen extract, but the timing was not parallel with the symptoms. IL-10 mRNA was enhanced in the peripheral blood mononuclear cells (PBMCs), suggesting CM-induced tolerance for cedar pollen administration. Similarly, Foxp3 mRNA was also detected in the PBMC. Additive sensitization of these CMs with Ascaris egg administration did not enhance chronic inflammation of type 1 allergy to induce the symptoms. These results suggest that the environmental immune cells develop transient allergic symptoms and subsequent immune-tolerance in the intranasally sensitized CMs. PMID- 29332926 TI - Differentiating between Alzheimer Disease Patients and Controls with Phase difference-enhanced Imaging at 3T: A Feasibility Study. AB - PURPOSE: To test the feasibility of the phase difference enhanced (PADRE) imaging for differentiation between Alzheimer disease (AD) patients and control subjects on 3T MR imaging. MATERIALS AND METHODS: Fifteen patients with AD and 10 age matched control subjects underwent two-dimensional fast field echo imaging to obtain PADRE images on a 3T MR scanner. A double Gaussian distribution model was used to determine the threshold phase value for differentiation between the physiologic and non-physiologic iron in the cerebral cortices, and PADRE images were processed with the threshold. Using a 4-point grading system, two readers independently assessed the signal of the four cerebral cortices on PADRE images: the cuneus, precuneus, superior frontal gyrus, and superior temporal gyrus. The difference in the signals in each cortex between the AD patients and age-matched control subjects was determined by using Mann-Whitney U test. Inter-rater reliability was determined by Kappa analysis. We also evaluated the correlation between Mini-Mental State Examination (MMSE) score and the hypointense grade, and between disease duration and the hypointense grade using the Spearman rank correlation test. RESULTS: The threshold phase value for differentiation between the physiologic and non-physiologic iron was -4.6% pi (radian). The mean grades of the cuneus, precuneus, and superior temporal gyrus were significantly higher for the AD patients than for the control subjects (P = 0.002). Excellent inter rater reliability was seen in the precuneus (kappa = 0.93), superior temporal gyrus (kappa = 0.94), and superior frontal gyrus (kappa = 0.93); good inter-rater reliability was observed in the cuneus (kappa = 0.75). We found a statistical correlation between MMSE score and the hypointense grade in superior temporal gyrus (STG) (P = 0.008), and no correlation between disease duration and the hypointense grade in any gyrus. CONCLUSION: Our results suggest the feasibility of PADRE imaging at 3T for differentiation between AD patients and control subjects. PMID- 29332928 TI - Optical coherence tomography for precision brain imaging, neurosurgical guidance and minimally invasive theranostics. AB - This review focuses on optical coherence tomography (OCT)-based neurosurgical application for imaging and treatment of brain tumors. OCT has emerged as one of the most innovative and successful translational biomedical-diagnostic techniques. It is a useful imaging tool for noninvasive, in vivo, in situ and real-time imaging in soft biological tissues, such as brain tumor imaging. OCT can detect the structure of biological tissue in a micrometer scale, and functional OCT has some clinical researches and applications, such as nerve fiber tracts and neurovascular imaging. OCT is able to identify tumor margins, and it gives intraoperative precision identification and resection guidance. OCT-based theranostics is introduced into preclinical neurosurgical resection, such as the integration of OCT and laser ablation. We discuss the challenges and opportunities of OCT-based system in the field of combination of intraoperative structural and functional imaging, neurosurgical guidance and minimally invasive theranostics. We point out that OCT and laser ablation-based theranostics can give more precision and intelligence for intraoperative diagnosis and therapeutics in clinical applications. The theranostics can precisely locate, or specifically target cancerous tissues, and then as much as possiblly eliminate them. PMID- 29332929 TI - Size-Based Differentiation of Cancer and Normal Cells by a Particle Size Analyzer Assisted by a Cell-Recognition PC Software. AB - Detection of anomalous cells such as cancer cells from normal blood cells has the potential to contribute greatly to cancer diagnosis and therapy. Conventional methods for the detection of cancer cells are usually tedious and cumbersome. Herein, we report on the use of a particle size analyzer for the convenient size based differentiation of cancer cells from normal cells. Measurements made using a particle size analyzer revealed that size parameters for cancer cells are significantly greater (e.g., inner diameter and width) than the corresponding values for normal cells (white blood cells (WBC), lymphocytes and splenocytes), with no significant difference in shape parameters (e.g., circularity and convexity). The inner diameter of many cancer cell lines is greater than 10 um, in contrast to normal cells. For the detection of WBC having similar size to that of cancer cells, we developed a PC software "Cancer Cell Finder" that differentiates them from cancer cells based on brightness stationary points on a cell surface. Furthermore, the aforementioned method was validated for cancer cell/clusters detection in spiked mouse blood samples (a B16 melanoma mouse xenograft model) and circulating tumor cell cluster-like particles in the cat and dog (diagnosed with cancer) blood samples. These results provide insights into the possible applicability of the use of a particle size analyzer in conjunction with PC software for the convenient detection of cancer cells in experimental and clinical samples for theranostics. PMID- 29332930 TI - Bullosis Diabeticorum: A Rare Presentation with Immunoglobulin G (IgG) Deposition Related Vasculopathy. Case Report and Focused Review. AB - BACKGROUND Bullosis diabeticorum (BD) is a condition characterized by recurrent, spontaneous, and non-inflammatory blistering in patients with poorly controlled diabetes mellitus. While etiopathogenesis remains unclear, roles of neuropathy, vasculopathy and UV light are hypothesized. Most literature reports negative direct and indirect immunofluorescence findings in diabetics with bullous eruptions. Porphyria cutanea tarda, bullous pemphigoid, epidermolysis bullosa, and pseudoporphyria are other differential diagnoses of bullous lesions, and they must be excluded. CASE REPORT We present a 42-year-old African American male with long standing poorly controlled insulin dependent diabetes mellitus with blisters on his left hand and feet. The blisters were noticed three weeks prior to presentation and, thereafter, rapidly increased in size and spontaneously ruptured. Physical examination revealed a multitude of both roofed and unroofed bullous painless skin lesions. Hematoxylin and eosin (H&E) staining dramatized the dermal-epidermal blistering and re-epithelization process. Direct Immunofluorescence (DIF) was positive for 2 + IgG deposition in the already thickened basement membrane of the capillaries of the superficial vascular plexus. After debridement, his wounds greatly improved with over three months of aggressive wound care. CONCLUSIONS Primary immunologic abnormality likely plays no role in the onset of BD. To date, only one article has reported nonspecific capillary-associated immunoglobulin M and C3. This is the first case of BD with IgG deposition in the superficial capillary basement membrane. Positive findings on DIF suggest vasculopathy. Dermal microangiopathy, secondary to immunologic abnormality, is a possible underlying pathogenesis to bullae formation. Punch biopsy with DIF can be an additional diagnostic modality in the management of such cases. PMID- 29332932 TI - Thrombotic microangiopathy: Pregnancy outcomes in aHUS. PMID- 29332933 TI - Epigenetics: H3K27me3 in glomerular disease. PMID- 29332931 TI - Proteasome Inhibitor Carbobenzoxy-L-Leucyl-L-Leucyl-L-Leucinal (MG132) Enhances Therapeutic Effect of Paclitaxel on Breast Cancer by Inhibiting Nuclear Factor (NF)-kappaB Signaling. AB - BACKGROUND Carbobenzoxy-L-leucyl-L-leucyl-L-leucinal (MG132), a peptide aldehyde proteasome inhibitor, can inhibit tumor progression by inactivating nuclear factor (NF)-kappaB signaling. Paclitaxel (PTX) is part of a routine regimen for the treatment of breast cancer. However, activation of the NF-kappaB pathway after treatment with PTX confers insensitivity to this drug. This study investigated the potential effect of MG132 as a co-treatment with PTX against breast cancer, and clarifies the underlying molecular mechanisms. MATERIAL AND METHODS Breast cancer cells were treated with PTX, MG132, or PTX plus MG132, and the therapeutic effects were evaluated phenotypically. A mouse model of breast cancer was used to determine the combined effect of PTX plus MG132 in vivo. RESULTS Treatment with PTX plus MG132 suppressed aggressive phenotypes of breast cancer cells more effectively than PTX alone. Consistently, MG132 also enhanced the suppressive effect of PTX on tumor growth in C57BL/6 mice. Significantly, activation of the NF-kappaB pathway by PTX was attenuated by MG132. CONCLUSIONS Based on our findings, we suggest the application of MG132 in clinical practice in combination with PTX for the treatment of breast cancer. PMID- 29332934 TI - Sepsis: The podoplanin-CLEC2 axis in sepsis. PMID- 29332938 TI - Innate lymphoid cells: Lipid surveillance by skin ILCs. PMID- 29332939 TI - Metagenomics: Setting the bar for mycobiome analysis. PMID- 29332936 TI - Tissue-specific immunopathology during malaria infection. AB - Systemic inflammation mediated by Plasmodium parasites is central to malaria disease and its complications. Plasmodium parasites reside in erythrocytes and can theoretically reach all host tissues via the circulation. However, actual interactions between parasitized erythrocytes and host tissues, along with the consequent damage and pathological changes, are limited locally to specific tissue sites. Such tissue specificity of the parasite can alter the outcome of malaria disease, determining whether acute or chronic complications occur. Here, we give an overview of the recent progress that has been made in understanding tissue-specific immunopathology during Plasmodium infection. As knowledge on tissue-specific host-parasite interactions accumulates, better treatment modalities and targets may emerge for intervention in malaria disease. PMID- 29332940 TI - Cellular microbiology: Many pathogens, one host receptor. PMID- 29332941 TI - Bacterial pathogenesis: Clostridium difficile is sweet on trehalose. PMID- 29332937 TI - Improving immune-vascular crosstalk for cancer immunotherapy. AB - The vasculature of tumours is highly abnormal and dysfunctional. Consequently, immune effector cells have an impaired ability to penetrate solid tumours and often exhibit compromised functions. Normalization of the tumour vasculature can enhance tissue perfusion and improve immune effector cell infiltration, leading to immunotherapy potentiation. However, recent studies have demonstrated that the stimulation of immune cell functions can also help to normalize tumour vessels. In this Opinion article, we propose that the reciprocal regulation between tumour vascular normalization and immune reprogramming forms a reinforcing loop that reconditions the tumour immune microenvironment to induce durable antitumour immunity. A deeper understanding of these pathways could pave the way for identifying new biomarkers and developing more effective combination treatment strategies for patients with cancer. PMID- 29332942 TI - 1918 influenza virus: 100 years on, are we prepared against the next influenza pandemic? PMID- 29332943 TI - Bacterial physiology: It's a wrap for Burkholderia flagella. PMID- 29332935 TI - Novel treatment strategies for chronic kidney disease: insights from the animal kingdom. AB - Many of the >2 million animal species that inhabit Earth have developed survival mechanisms that aid in the prevention of obesity, kidney disease, starvation, dehydration and vascular ageing; however, some animals remain susceptible to these complications. Domestic and captive wild felids, for example, show susceptibility to chronic kidney disease (CKD), potentially linked to the high protein intake of these animals. By contrast, naked mole rats are a model of longevity and are protected from extreme environmental conditions through mechanisms that provide resistance to oxidative stress. Biomimetic studies suggest that the transcription factor nuclear factor erythroid 2-related factor 2 (NRF2) offers protection in extreme environmental conditions and promotes longevity in the animal kingdom. Similarly, during months of fasting, immobilization and anuria, hibernating bears are protected from muscle wasting, azotaemia, thrombotic complications, organ damage and osteoporosis - features that are often associated with CKD. Improved understanding of the susceptibility and protective mechanisms of these animals and others could provide insights into novel strategies to prevent and treat several human diseases, such as CKD and ageing-associated complications. An integrated collaboration between nephrologists and experts from other fields, such as veterinarians, zoologists, biologists, anthropologists and ecologists, could introduce a novel approach for improving human health and help nephrologists to find novel treatment strategies for CKD. PMID- 29332944 TI - Fungal pathogenesis: Wheat stem rust effectors revealed. PMID- 29332946 TI - Optimal Groundwater Extraction under Uncertainty and a Spatial Stock Externality. AB - We introduce a model that incorporates two important elements to estimating welfare gains from groundwater management: stochasticity and a spatial stock externality. We estimate welfare gains resulting from optimal management under uncertainty as well as a gradual stock externality that produces the dynamics of a large aquifer being slowly exhausted. This groundwater model imposes an important aspect of a depletable natural resource without the extreme assumption of complete exhaustion that is necessary in a traditional single cell (bathtub) model of groundwater extraction. Using dynamic programming, we incorporate and compare stochasticity for both an independent and identically distributed as well as a Markov chain process for annual rainfall. We find that the spatial depletion of the aquifer is significant to welfare gains for a parameterization of a section of the Ogallala Aquifer in Kansas, ranging from 2.9% to 3.01%, which is larger than those found previously over the region. Surprisingly, the inclusion of stochasticity in rainfall increases welfare gains only slightly. PMID- 29332947 TI - A tunable coupler for superconducting microwave resonators using a nonlinear kinetic inductance transmission line. AB - We present a tunable coupler scheme that allows us to tune the coupling strength between a feedline and a superconducting resonator in situ over a wide range. In this scheme, we shunt the feedline with a 50-Omega lumped-element nonlinear transmission line made from a 20 nm NbTiN film. By injecting a DC current, the nonlinear kinetic inductance changes and the effective impedance shunting the resonator periodically varies from a short to an open, which tunes the coupling strength and coupling quality factor Qc . We have demonstrated Qc tuning over a factor of 40, between Qc ~ 5.5 * 104 and Qc ~ 2.3 * 106, for a 4.5 GHz resonator by applying a DC current less than 3.3 mA. Our tunable coupler scheme is easy to implement and may find broad applications in superconducting detector and quantum computing/information experiments. PMID- 29332945 TI - The human skin microbiome. AB - Functioning as the exterior interface of the human body with the environment, skin acts as a physical barrier to prevent the invasion of foreign pathogens while providing a home to the commensal microbiota. The harsh physical landscape of skin, particularly the desiccated, nutrient-poor, acidic environment, also contributes to the adversity that pathogens face when colonizing human skin. Despite this, the skin is colonized by a diverse microbiota. In this Review, we describe amplicon and shotgun metagenomic DNA sequencing studies that have been used to assess the taxonomic diversity of microorganisms that are associated with skin from the kingdom to the strain level. We discuss recent insights into skin microbial communities, including their composition in health and disease, the dynamics between species and interactions with the immune system, with a focus on Propionibacterium acnes, Staphylococcus epidermidis and Staphylococcus aureus. PMID- 29332948 TI - Comparison of areas in shadow from imaging and altimetry in the north polar region of Mercury and implications for polar ice deposits. AB - Earth-based radar observations and results from the MESSENGER mission have provided strong evidence that permanently shadowed regions near Mercury's poles host deposits of water ice. MESSENGER's complete orbital image and topographic datasets enable Mercury's surface to be observed and modeled under an extensive range of illumination conditions. The shadowed regions of Mercury's north polar region from 65 degrees N to 90 degrees N were mapped by analyzing Mercury Dual Imaging System (MDIS) images and by modeling illumination with Mercury Laser Altimeter (MLA) topographic data. The two independent methods produced strong agreement in identifying shadowed areas. All large radar-bright deposits, those hosted within impact craters >=6 km in diameter, collocate with regions of shadow identified by both methods. However, only ~46% of the persistently shadowed areas determined from images and ~43% of the permanently shadowed areas derived from altimetry host radar-bright materials. Some sizable regions of shadow that do not host radar-bright deposits experience thermal conditions similar to those that do. The shadowed craters that lack radar-bright materials show a relation with longitude that is not related to the thermal environment, suggesting that the Earth-based radar observations of these locations may have been limited by viewing geometry, but it is also possible that water ice in these locations is insulated by anomalously thick lag deposits or that these shadowed regions do not host water ice. PMID- 29332950 TI - Microwave evaluation of electromigration susceptibility in advanced interconnects. AB - Traditional metrology has been unable to adequately address the needs of the emerging integrated circuits (ICs) at the nano scale; thus, new metrology and techniques are needed. For example, the reliability challenges in fabrication need to be well understood and controlled to facilitate mass production of through-substrate-via (TSV) enabled three-dimensional integrated circuits (3D ICs). This requires new approaches to the metrology. In this paper, we use the microwave propagation characteristics to study the reliability issues that precede the physical damage caused by electromigration in the Cu-filled TSVs. The pre-failure microwave insertion losses and group delay are dependent on both the device temperature and the amount of current forced through the devices-under test. The microwave insertion losses increase with the increase in the test temperature, while the group delay increases with the increase in the forced direct current magnitude. The microwave insertion losses are attributed to the defect mobility at the Cu-TiN interface, and the group delay changes are due to resistive heating in the interconnects, which perturbs the dielectric properties of the cladding dielectrics of the copper fill in the TSVs. https://doi.org/10.1063/1.4992135. PMID- 29332949 TI - Convergent Synthesis of alpha-Branched Amines by Transition-Metal-Catalyzed C-H Bond Additions to Imines. AB - alpha-Branched amines are ubiquitous in drugs and natural products, and consequently, synthetic methods that provide convergent and efficient entry to these structures are of considerable value. Transition-metal-catalyzed C-H bond additions to imines have the potential to be highly practical and atom-economic approaches for the synthesis of a diverse and complex array of alpha-branched amine products. These strategies typically employ readily available starting inputs, display high functional group compatibility, and often avoid the production of stoichiometric waste byproducts. A number of C-H functionalization methods have also been developed that incorporate cascade cyclization pathways to give amine-substituted carbocycles, and in many cases, proceed with the formation of multiple stereogenic centers. Advances in the area of asymmetric C-H bond additions to imines have also been achieved through the use of chiral imine N substituents as well as by enantioselective catalysis. PMID- 29332951 TI - Soil seal development under simulated rainfall: Structural, physical and hydrological dynamics. AB - This study delivers new insights into rainfall-induced seal formation through a novel approach in the use of X-ray Computed Tomography (CT). Up to now seal and crust thickness have been directly quantified mainly through visual examination of sealed/crusted surfaces, and there has been no quantitative method to estimate this important property. X-ray CT images were quantitatively analysed to derive formal measures of seal and crust thickness. A factorial experiment was established in the laboratory using open-topped microcosms packed with soil. The factors investigated were soil type (three soils: silty clay loam - ZCL, sandy silt loam - SZL, sandy loam - SL) and rainfall duration (2-14 min). Surface seal formation was induced by applying artificial rainfall events, characterised by variable duration, but constant kinetic energy, intensity, and raindrop size distribution. Soil porosities derived from CT scans were used to quantify the thickness of the rainfall-induced surface seals and reveal temporal seal micro morphological variations with increasing rainfall duration. In addition, the water repellency and infiltration dynamics of the developing seals were investigated by measuring water drop penetration time (WDPT) and unsaturated hydraulic conductivity (Kun). The range of seal thicknesses detected varied from 0.6 to 5.4 mm. Soil textural characteristics and OM content played a central role in the development of rainfall-induced seals, with coarser soil particles and lower OM content resulting in thicker seals. Two different trends in soil porosity vs. depth were identified: i) for SL soil porosity was lowest at the immediate soil surface, it then increased constantly with depth till the median porosity of undisturbed soil was equalled; ii) for ZCL and SL the highest reduction in porosity, as compared to the median porosity of undisturbed soil, was observed in a well-defined zone of maximum porosity reduction c. 0.24-0.48 mm below the soil surface. This contrasting behaviour was related to different dynamics and processes of seal formation which depended on the soil properties. The impact of rainfall-induced surface sealing on the hydrological behaviour of soil (as represented by WDTP and Kun) was rapid and substantial: an average 60% reduction in Kun occurred for all soils between 2 and 9 min rainfall, and water repellent surfaces were identified for SZL and ZCL. This highlights that the condition of the immediate surface of agricultural soils involving rainfall induced structural seals has a strong impact in the overall ability of soil to function as water reservoir. PMID- 29332952 TI - Disentangling orthogonal matrices. AB - Motivated by a certain molecular reconstruction methodology in cryo-electron microscopy, we consider the problem of solving a linear system with two unknown orthogonal matrices, which is a generalization of the well-known orthogonal Procrustes problem. We propose an algorithm based on a semi-definite programming (SDP) relaxation, and give a theoretical guarantee for its performance. Both theoretically and empirically, the proposed algorithm performs better than the naive approach of solving the linear system directly without the orthogonal constraints. We also consider the generalization to linear systems with more than two unknown orthogonal matrices. PMID- 29332954 TI - Determination of the Boltzmann constant with cylindrical acoustic gas thermometry: new and previous results combined. AB - We report a new determination of the Boltzmann constant kB using a cylindrical acoustic gas thermometer. We determined the length of the copper cavity from measurements of its microwave resonance frequencies. This contrasts with our previous work (Zhang et al 2011 Int. J. Thermophys.32 1297, Lin et al 2013 Metrologia50 417, Feng et al 2015 Metrologia52 S343) that determined the length of a different cavity using two-color optical interferometry. In this new study, the half-widths of the acoustic resonances are closer to their theoretical values than in our previous work. Despite significant changes in resonator design and the way in which the cylinder length is determined, the value of kB is substantially unchanged. We combined this result with our four previous results to calculate a global weighted mean of our kB determinations. The calculation follows CODATA's method (Mohr and Taylor 2000 Rev. Mod. Phys. 72 351) for obtaining the weighted mean value of kB that accounts for the correlations among the measured quantities in this work and in our four previous determinations of kB. The weighted mean kB is 1.380 6484(28) * 10-23 J K-1 with the relative standard uncertainty of 2.0 * 10-6. The corresponding value of the universal gas constant is 8.314 459(17) J K-1 mol-1 with the relative standard uncertainty of 2.0 * 10-6. PMID- 29332953 TI - Determination of the molar mass of argon from high-precision acoustic comparisons. AB - This article describes the accurate determination of the molar mass M of a sample of argon gas used for the determination of the Boltzmann constant. The method of one of the authors (Moldover et al 1988 J. Res. Natl. Bur. Stand.93 85-144) uses the ratio of the square speed of sound in the gas under analysis and in a reference sample of known molar mass. A sample of argon that was isotopically enriched in 40Ar was used as the reference, whose unreactive impurities had been independently measured. The results for three gas samples are in good agreement with determinations by gravimetric mass spectrometry; ( - 1) = (-0.31 +/- 0.69) * 10-6, where the indicated uncertainty is one standard deviation that does not account for the uncertainties from the acoustic and mass spectroscopy references. PMID- 29332955 TI - Simultaneous segmentation and bias field estimation using local fitted images. AB - Level set methods often suffer from boundary leakage and inadequate segmentation when used to segment images with inhomogeneous intensities. To handle this issue, a novel region-based level set method was developed, in which two different local fitted images are used to construct a hybrid region intensity fitting energy functional. This novel method enables simultaneous segmentation of the regions of interest and estimation of the bias fields from inhomogeneous images. Our experiments on both synthetic images and a publicly available dataset demonstrate the feasibility and reliability of the proposed method. PMID- 29332956 TI - Fitness and Individuality in Complex Life Cycles. AB - Complex life cycles are common in the eukaryotic world, and they complicate the question of how to define individuality. Using a bottom-up, gene-centric approach, I consider the concept of fitness in the context of complex life cycles. I analyze the fitness effects of an allele (or a trait) on different biological units within a complex life history and how these effects drive evolutionary change within populations. Based on these effects, I attempt to construct a concept of fitness that accurately predicts evolutionary change in the context of complex life cycles. PMID- 29332958 TI - Kidney involvement in antiphospholipid syndrome - current diagnostic and management problems. PMID- 29332957 TI - In depth examination of impact of secondary reactive species on the apparent decoupling of poly(ethylene glycol) diacrylate hydrogel average mesh size and modulus. AB - Poly(ethylene glycol) diacrylate (PEGDA) hydrogels are widely used in biotechnology due to their in situ crosslinking capacity and tunable physical properties. However, as with all single component hydrogels, the modulus of PEGDA networks cannot be tailored independently of mesh size. This interdependence places significant limitations on their use for defined, 3D cell-microenvironment studies and for certain controlled release applications. The incorporation of secondary reactive species (SRS) into PEGDA hydrogels has previously been shown to allow the identification of up to 6 PEGDA hydrogel formulations for which distinct moduli can be obtained at consistent average mesh size (or vice versa). However, the modulus and mesh size ranges which can be probed by these formulations are quite restricted. This work presents an in-depth study of SRS incorporation into PEGDA hydrogels, with the goal of expanding the space for which "decoupled" examination of modulus and mesh size effects is achievable. Towards this end, over 100 PEGDA hydrogels containing either N-vinyl pyrrolidone or star PEG-tetraacrylate as SRS were characterized. To our knowledge, this is the first study to demonstrate that SRS incorporation allows for the identification of a number of modulus ranges that can be probed at consistent average mesh size (or vice versa). PMID- 29332959 TI - Changes in body composition and bone mineral density in postmenopausal women with psoriatic arthritis. AB - Objective: Prolonged inflammation status due to psoriatic arthritis (PsA) may contribute to the loss of muscle mass, extending from muscle weakness, and increased risk of falls and fractures. The risk of fractures and their complications increases with concomitant osteoporosis. Material and methods: The study included 95 women aged 50-75 years. The presence of sarcopenia was evaluated in a group of 51 women with PsA, and 44 controls (without inflammatory joint disease). Measurements of muscle mass and lean body mass were made using the method of bioimpedance assessing ALM (Appendicular Lean Mass) index and SMI (Skeletal Muscle Index). The diagnosis of sarcopenia was made in women with low muscle mass and concomitant reduction of the efficiency of the assessed functional test Timed Up and Go (TUG). Bone density measurement was done by densitometry in the femoral neck and lumbar spine. (Ethics statement OIL 625/16/Bioet). Results: Sarcopenia, using ALM index and SMI, was diagnosed in 13.7% and 43.1% of PsA women, and in healthy women in 9% and 20.4%, respectively. In the group of PsA, sarcopenia was associated with a significant increase in the occurrence of disorders of bone mineralisation (72.7% vs. 41.3% in patients without a decrease in muscle mass). There was no correlation between the loss of muscle mass, bone density, and activity of PsA. Conclusions: The prevalence of sarcopenia in postmenopausal women suffering from PsA is associated with the occurrence of osteoporosis. PMID- 29332960 TI - Nutrition and quality of life referring to physical abilities - a comparative analysis of a questionnaire study of patients with rheumatoid arthritis and osteoarthritis. AB - Objectives: A comparative analysis of opinions on diet and nutrition of patients suffering from rheumatoid arthritis (RA) and osteoarthritis (OA), and quality of life limited to physical abilities in both study groups. Material and methods: In the period from August to December 2012 an anonymous questionnaire survey was carried out among the patients of the Institute of Rheumatology. The respondents were asked to define their dietary preferences, dietary supplementation, and the level of physical limitations by completing the Health Assessment Questionnaire (HAQ). The study was carried out with the consent of the Bioethics Committee. Results: A total of 397 questionnaires were obtained. The majority of respondents were women (77%). 62% of RA patients (165 respondents) had been treated for over 10 years as opposed to OA patients (80 respondents), where the largest group (33%) were patients during their first year. There is a significant difference in the disability level of patients in both compared groups. The average HAQ of RA patients was 1.09 and OA patients - 0.46. A change of dietary habits was declared by 32% of RA patients and by 17% of OA patients (p = 0.049) mostly without consulting a specialist - it concerned mainly limiting the consumption of sweets (30% vs. 21%), a meatless diet: 19% vs. 14%, and a non-dairy diet: 9% vs. 14%. Conclusions: Regardless of their diagnosis, the respondents believe that the way of eating affects their health. There are visible differences between diet and dietary supplementation, depending on the diagnosis of the disease. Differences were also observed in physical limitations of both patient groups - a higher level of disability was noted among RA patients. It is necessary to continue the topic at the level of clinical trials and medical experiments within the scope of the impact of diet as a supportive element in the treatment of rheumatic diseases. PMID- 29332961 TI - The usefulness of histopathological examinations of non-renal biopsies in the diagnosis of granulomatosis with polyangiitis. AB - Introduction: Granulomatosis with polyangiitis (GPA) is a rare, ANCA-associated, systemic disease characterized by necrotizing small and medium vessel vasculitis of unknown etiology associated with granulomatous inflammation affecting the renal, pulmonary, upper airways, ocular systems and other tissues. Histological proof of the granulomatosis with polyangiitis (GPA) can be obtained by biopsy of clinically involved sites. The main purpose of this study was to examine histopathological changes in non-renal biopsies from patients with established diagnosis of GPA and evaluated the histological confirmation at diagnosis of this disease. Material and methods: A retrospective analysis was performed in patients with GPA diagnosed and treated in clinics of the University Clinical Center (UCK) in Gdansk in 1988-2009. Results: In the analyzed group of GPA patients the histopathological examination of biopsies taken from involved tissues (except kidney) was performed in 60% of patients. Thirty-six out of 93 biopsies (39%) were diagnosed as typical of GPA, 10 (10.7%) were suggestive and 51 (54.8%) were non-specific. Considering all biopsies, the diagnosis was confirmed in 24 patients (57% of patients in whom biopsies were taken). Epitheloid cell granulomas were present in 33 biopsies (43%), characteristic necrosis in 27 biopsies (35%), small vessel vasculitis in 18 biopsies (23%), while multinucleated giant cells were identified only in 9 biopsies (12%). Conclusions: Histopathological examination of the affected tissues remains the gold standard of the diagnosis of GPA. Its usefulness increases, particularly in ANCA-negative patients, in the initial phase of the disease, or in patients with atypical clinical presentation. In many cases, it is necessary to repeat biopsy to establish the diagnosis. The role of the histopathological examination seems to be particularly important when ANCA is negative or clinical symptoms are atypical of GPA. PMID- 29332962 TI - The importance of physiotherapy in the sexuality of patients with rheumatic diseases. AB - The sexuality of patients with rheumatic diseases is a significant interdisciplinary problem, requiring intensified action not only of rheumatologists, sexologists, and psychologists but also physiotherapists. The sexuality problems and motor disability in chronic diseases such as rheumatoid arthritis or ankylosing spondylitis, as well as other rheumatic diseases, are generally still taboo subjects, rarely discussed by physicians and physiotherapists. Lack of mobility, hormonal imbalance, fatigue, and accompanying decreased quality of life have an impact on sexual dysfunction. Meanwhile sex, as an integral part of human personality, is an essential element of human life. PMID- 29332963 TI - Role of human microbiome and selected bacterial infections in the pathogenesis of rheumatoid arthritis. AB - Microorganisms inhabiting human body form a complex ecosystem. The mutual influence of the microbiome and the immune system of the host constitute the basis for numerous diseases, e.g. pseudomembranous colitis, inflammatory bowel disease, type 1 diabetes, atopic diseases, obesity, reactive arthritis. New molecular diagnostic methods and multi-center studies may help in understanding of the role of microbiota in health and disease. Rheumatoid arthritis has a multi faceted etiology, and its causes are not entirely understood. There are indications for the influence of microbiomes of oral cavity, intestines, lungs and urinary tract on the development of rheumatoid arthritis. Interactions between microorganisms and human immune system play role in the pathogenesis of the disease. PMID- 29332964 TI - Relapse of polymyalgia rheumatica after a fall. AB - Approximately half of PMR patients have a relapse with a necessity to increase GC dosages. The role of external factors in inducing PMR relapse have been poorly investigated. We present a case-series of five PMR patients in remission with low doses of glucocorticosteroids (GC), who presented with relapse immediately after a fall. The assessment of PMR relapse was made using PMR-AS by Leeb and Bird, and a score > 9.35 was consistent with diagnosis of relapse. Gender, age, and cumulative dose of GC at the time of the fall were compared between the group of these five patients and a group of 41 PMR patients who had no PMR relapse after a fall: using the Fischer's exact test a significant difference was pointed out when the p-value was < 0.05. In our five PMR patients, the sharp worsening of clinical manifestations was always accompanied by a significant rise of the inflammatory indices and the increase of GC dosage (almost always 10 mg/day of prednisone) prompted a fast return (seven days as average) to the previous clinical and laboratory features. All other potentially responsible factors were excluded. Several months (6-10 months on average) after the fall, none of these five patients had a new relapse. No significant differences were found when we compared age, sex, and the cumulative dose of GC at the time of the fall between the group of patients with PMR relapse and the group of patients without. The possibility of PMR relapse being realised immediately after a fall should be kept in mind in daily practice, especially when typical manifestations reappear immediately after a fall and other diagnostic hypotheses have been carefully excluded. The lack of important data (genetic factors, hormonal dosages, serum levels of IL-6 and/or serum soluble IL-6 receptor) in our case-series represented important limits for clarifying the nature of our observations and should be included in any subsequent study design on this argument. If our monocentric data are confirmed by multicentric data, the assessment of the risk of falls through specific scales should be an integral part of the visit of all PMR patients. PMID- 29332965 TI - Two clinical cases of granulomatosis with polyangiitis with isolated otitis media and mastoiditis. AB - Granulomatosis with polyangiitis (GPA) is characterised by granulomatous necrotising inflammatory lesions of the upper and lower respiratory tract, often associated with pauci-immune glomerulonephritis. The diagnosis of granulomatosis with polyangiitis is made according to the classification criteria of the ACR criteria for granulomatosis with polyangiitis. We present two cases of granulomatosis with polyangiitis limited/localised form. The common feature between two clinical cases were not sufficient criteria for a definite diagnosis at the beginning. In both cases the clinical presence was otitis media with acute mastoiditis, peripheral facial nerve palsy, and severe headache. Early diagnosis and treatment of patients with granulomatosis with polyangiitis define favourable prognosis. On the other hand, the treatment of granulomatosis with polyangiitis (corticosteroids and immunosuppressive therapy) has various side effects, and the "ex juvantibus" therapy is hazardous. PMID- 29332966 TI - When nuisance is nice: ignored erythema nodosa heralding the Lofgren's syndrome in a Nigerian woman. AB - Lofgren's syndrome (LS) is a variant of sarcoidosis characterised by the triad of erythema nodosum (EN), radiographic bilateral hilar adenopathy, and arthralgia/arthritis. Like all cases of sarcoidosis, it is of unknown aetiology and may constitute a diagnostic difficulty in the ambiguous phenotype. Lofgren's syndrome is associated with a good prognosis and commonly undergoes spontaneous remission within four months. However, the co-existence of multiple good and adverse prognostic factors in a patient may call for guarded expectation. Sarcoidosis is generally more prevalent among people of African descent, but the vast majority of the literature on sarcoidosis are from the western hemisphere. Lofgren's syndrome has been rarely documented in West Africans despite the availability of some reports of sarcoidosis in the region. We present a case of a Nigerian woman with LS that started out as isolated EN, which was ignored for months until the onset of florid pulmonary and systemic symptoms. PMID- 29332967 TI - Professor Henryka Maldyk (1924-2017). PMID- 29332968 TI - 50 years of the Polish Physician-Writers Union. PMID- 29332969 TI - C12H12 interconversions: two non-pyrolytic syntheses of tricyclo[5.3.2.04,8]dodeca-2,5,9,11-tetraene. AB - Herein, we describe two independent and non-pyrolytic syntheses of an important C12H12 hydrocarbon which had been prepared previously by gas phase thermolysis of compound 6. The first method is based on an unusual dipolar cycloaddition of dichloroketene onto bullvalene. After reductive dechlorination, a Shapiro-Heath reaction of the tosylhydrazone gave the title compound. Alternatively, compound 13 is also obtained from its isomer 6 by a Ag+ catalyzed reaction. PMID- 29332970 TI - MIGRATION AND CONSERVATION: FRAMEWORKS, GAPS, AND SYNERGIES IN SCIENCE, LAW, AND MANAGEMENT. AB - Migratory animals provide unique spectacles of cultural, ecological, and economic importance. However, the process of migration is a source of risk for migratory species as human actions increasingly destroy and fragment habitat, create obstacles to migration, and increase mortality along the migration corridor. As a result, many migratory species are declining in numbers. In the United States, the Endangered Species Act provides some protection against extinction for such species, but no protection until numbers are severely reduced, and no guarantee of recovery to population levels associated with cultural, ecological, or economic significance. Although groups of species receive some protection from statutes such as the Migratory Bird Treaty Act and Marine Mammal Protection Act, there is no coordinated system for conservation of migratory species. In addition, information needed to protect migratory species is often lacking, limiting options for land and wildlife managers who seek to support these species. In this Article, we outline the existing scientific, legal, and management information and approaches to migratory species. Our objective is to assess present capacity to protect the species and the phenomenon of migration, and we argue that al three disciplines are necessary for effective conservation. We find significant capacity to support conservation in all three disciplines, but no organization around conservation of migration within any discipline or among the three disciplines. Areas of synergy exist among the disciplines but not as a result of any attempt for coordination. As a result, significant gaps in information and capacity exist that must be addressed if effective conservation of migratory species is to be undertaken. We suggest that all three disciplines cooperate to identify the most pressing research needs, so that these can become targets for relevant funding sources. We identify areas of current risk to migratory species that represent gaps in current legal protections: protective legislation that provides no guidelines for desirable population sizes or best management practices for migratory species, taxonomic groups, particularly those including long-distance migrants, for which no agency has oversight, and gaps in policies to address impacts of fragmentation and obstacles such as power lines and wind turbines that curtail migration or cause mortality. Finally, we suggest that state-level programs provide either a foundation to augment with, or a model on which to build, conservation efforts targeting migratory species. Problems will arise due to lack of funds, difficulties in securing a landscape that will support abundant migrations, lack of adequate standards and best management practices, and an insufficient culture of collaboration among the three main relevant disciplines. However, we view these problems as entirely soluble and see evidence of support in society at large for conservation of migratory species. PMID- 29332971 TI - TENSOR DECOMPOSITIONS AND SPARSE LOG-LINEAR MODELS. AB - Contingency table analysis routinely relies on log-linear models, with latent structure analysis providing a common alternative. Latent structure models lead to a reduced rank tensor factorization of the probability mass function for multivariate categorical data, while log-linear models achieve dimensionality reduction through sparsity. Little is known about the relationship between these notions of dimensionality reduction in the two paradigms. We derive several results relating the support of a log-linear model to nonnegative ranks of the associated probability tensor. Motivated by these findings, we propose a new collapsed Tucker class of tensor decompositions, which bridge existing PARAFAC and Tucker decompositions, providing a more flexible framework for parsimoniously characterizing multivariate categorical data. Taking a Bayesian approach to inference, we illustrate empirical advantages of the new decompositions. PMID- 29332972 TI - Clinical Utility and Measurement of Procalcitonin. AB - Procalcitonin (PCT), regarded as a biomarker specific for bacterial infections, is used in a variety of clinical settings including primary care, emergency department and intensive care. PCT measurement aids in the diagnosis of sepsis and to guide and monitor antibiotic therapy. This article gives a brief overview of PCT and its use in guiding antibiotic therapy in various clinical settings, as well as its limitations. PCT performance in comparison with other biomarkers of infection in particular CRP is also reviewed. Owing to its greater availability, CRP has been widely used as a biomarker of infection and sepsis. PCT is often reported to be more superior to CRP, being more specific for sepsis and bacterial infection. PCT starts to rise earlier and returns to normal concentration more rapidly than CRP, allowing for an earlier diagnosis and better monitoring of disease progression. PMID- 29332974 TI - The Management of Post Analytical Correction Factors. AB - Clinical laboratories may systematically apply factors to assay results after analysis, but before reporting, in order to facilitate comparison of data from different methods. This may be done to align with other patient results, reference intervals or clinical decision points. These factors, which we term Post Analytical Correction Factors (PACF), may be applied to all types of results derived from the method, i.e. quality control (QC) and external quality assurance (EQA), as well as the patient results. As the principal use of PACF is comparing patient results, it is important that the laboratory use commutable materials (i.e. patient samples) and a formal process to establish, apply and manage PACF. We report on preliminary guidelines for PACF from a recent workshop. PMID- 29332975 TI - Enhancing the Clinical Value of Medical Laboratory Testing. AB - The value of medical laboratory testing is often directed to the cost of testing however the clinical benefits of these tests are at least as important. Laboratory testing has an acknowledged widespread role in clinical decision making, and therefore a role in determining clinical outcome. Consequently, the value of laboratory testing should be considered in its role in affecting beneficial actions and outcomes. This includes both the requesting phase of choosing tests which will influence clinical decision making as well as the reporting phase in a way that guides clinical decisions and actions. Clinical decision support systems and software can enhance the value of medical laboratory testing if they are directed toward facilitating those clinical decisions where there is either evidence, or agreed consensus, addressing patient outcomes. PMID- 29332976 TI - Australasian Guideline (2nd Edition): an Annex to the CLSI and UK Guidelines for the Performance of the Sweat Test for the Diagnosis of Cystic Fibrosis. PMID- 29332973 TI - Metabologenomics of Phaeochromocytoma and Paraganglioma: An Integrated Approach for Personalised Biochemical and Genetic Testing. AB - The tremendous advances over the past two decades in both clinical genetics and biochemical testing of chromaffin cell tumours have led to new considerations about how these aspects of laboratory medicine can be integrated to improve diagnosis and management of affected patients. With germline mutations in 15 genes now identified to be responsible for over a third of all cases of phaeochromocytomas and paragangliomas, these tumours are recognised to have one of the richest hereditary backgrounds among all neoplasms. Depending on the mutation, tumours show distinct differences in metabolic pathways that relate to or even directly impact clinical presentation. At the same time, there has been improved understanding about how catecholamines are synthesised, stored, secreted and metabolised by chromaffin cell tumours. Although the tumours may not always secrete catecholamines it has become clear that almost all continuously produce and metabolise catecholamines. This has not only fuelled changes in laboratory medicine, but has also assisted in recognition of genotype-biochemical phenotype relationships important for diagnostics and clinical care. In particular, differences in catecholamine and energy pathway metabolomes can guide genetic testing, assist with test interpretation and provide predictions about the nature, behaviour and imaging characteristics of the tumours. Conversely, results of genetic testing are important for guiding how routine biochemical testing should be employed and interpreted in surveillance programmes for at-risk patients. In these ways there are emerging needs for modern laboratory medicine to seamlessly integrate biochemical and genetic testing into the diagnosis and management of patients with chromaffin cell tumours. PMID- 29332978 TI - Playful pigs: Evidence of consistency and change in play depending on litter and developmental stage. AB - Play behaviour in pre-weaned piglets has previously been shown to vary consistently between litters. This study aimed to determine if these pre-weaning litter differences in play behaviour were also consistent in the post-weaning period. Seven litters of commercially bred piglets were raised in a free farrowing system (PigSAFE) and weaned at 28 days post-farrowing (+/-2 days). Post weaning piglets were maintained in litter groups in the PigSAFE pen. Analyses have been adjusted for sex both within and between litter as the only statistically significant covariate to play behaviour. Litter differences were observed in locomotor play in both the pre- and post-weaning stage (Pre: F(6,76) = 5.51 P < 0.001; Post: F(6,69) = 4.71, P < 0.001) and run (Pre: F(6,76) = 4.96, P < 0.001; Post: F(6,69) = 4.58, P < 0.001; the major element of locomotor play). Twenty eight% of the variance for a single observed animal in pre-weaning locomotor play and 26% of variance post-weaning could be attributed to the litter. There was no statistical evidence of differences in social play between litters at either stage with only 8% of pre-weaning variance, and 1% of post weaning variance being attributable to the litter level. However non-harmful fighting (the major element of social play), showed strong evidence of litter differences in both periods (Pre: F(6,76) = 2.38, P = 0.037; Post: F(6,69) = 2.60, P = 0.025), and was the only aspect of the play behaviour to correlate between the pre- and post-weaning periods (r = 0.765, df = 5, P = 0.045). On average play increased post-weaning. Litters showed a 'litter weaning effect' by differing in their locomotor play behavioural response to weaning, measured as the change in locomotor play behaviour from pre- to post-weaning (F(6,70) = 5.95, P < 0.001). These results generally confirm previous work showing litter differences in aspects of play behaviour in both the pre and post-weaning period. However, there was no consistency in litter differences between pre- and post weaning periods in the categories of play behaviour with the exception of non harmful fighting. We demonstrated a 'litter weaning effect' where litters respond as a 'unit' to weaning in terms of their locomotory play behaviour. In general these results add further support to the use of play as a sensitive welfare indicator in neonatal pigs. PMID- 29332979 TI - Standardized maximim D-optimal designs for enzyme kinetic inhibition models. AB - Locally optimal designs for nonlinear models require a single set of nominal values for the unknown parameters. An alternative is the maximin approach that allows the user to specify a range of values for each parameter of interest. However, the maximin approach is difficult because we first have to determine the locally optimal design for each set of nominal values before maximin types of optimal designs can be found via a nested optimization process. We show that particle swarm optimization (PSO) techniques can solve such complex optimization problems effectively. We demonstrate numerical results from PSO can help find, for the first time, formulae for standardized maximin D-optimal designs for nonlinear model with 3 or 4 parameters on the compact and nonnegative design space. Additionally, we show locally and standardized maximin D-optimal designs for inhibition models are not necessarily supported at a minimum number of points. To facilitate use of such designs, we create a web-based tool for practitioners to find tailor-made locally and standardized maximin optimal designs. PMID- 29332977 TI - The Role of Wnt Signalling in Angiogenesis. AB - Angiogenesis is a normal biological process wherein new blood vessels form from the growth of pre-existing blood vessels. Preventing angiogenesis in solid tumours by targeting pro-angiogenic factors including vascular endothelial growth factor (VEGF), angiopoietin-1 (Ang-1), basic fibroblast growth factor (bFGF), hepatocyte growth factor, and platelet-derived growth factor (PDGF) is currently under investigation for cancer treatment. Concurrently targeting the cell signalling pathways involved in the transcriptional and post-translational regulation of these factors may provide positive therapeutic results. One such pathway is the Wnt signalling pathway. Wnt was first discovered in mice infected with mouse mammary tumour virus, and has been crucial in improving our understanding of oncogenesis and development. In this review, we summarise molecular and cellular aspects of the importance of Wnt signalling to angiogenesis, including beta-catenin-dependent mechanisms of angiogenic promotion, as well as the study of Wnt antagonists, such as the secreted frizzled related protein family (SFRPs) which have been shown to inhibit angiogenesis. The growing understanding of the underlying complexity of the biochemical pathways mediating angiogenesis is critical to the identification of new molecular targets for therapeutic applications. PMID- 29332980 TI - Domain-Specific Daily Hassles, Anxiety, and Delinquent Behaviors among Low Income, Urban Youth. AB - We studied contributions of domain-specific daily hassles to anxiety and delinquency prior to and during the transition into middle (N = 186) or high school (N = 167) in a sample of low-income, urban adolescents (93% African American; 54% female) using a two-wave longitudinal design. Path models controlling for baseline maladjustment and sex examined how hassles from parents, peers, academics, and the neighborhood were associated with maladjustment once youth had made the transition into a new school. Hassles with friends both prior to and during the school transition mattered for older youth's maladjustment only, whereas hassles with parents mattered for both older and younger youth. Academic hassles only appeared to be problematic for younger youth. Neighborhood hassles were associated in opposite ways with younger and older youth's maladjustment. These findings suggest that both hassle type and the timing of the school transition matter for youth maladjustment. PMID- 29332981 TI - The Unique and Interactive Effects of Parent and School Bonds on Adolescent Delinquency. AB - Parent and school bonds are protective against delinquency. This study used longitudinal data and multilevel Poisson regression models (MLM) to examine unique and interactive associations of parent and school bonds on youth delinquency in a sample of rural adolescents (n = 945; 84% White). We investigated whether youth sex or transitioning to a new middle school moderated the linkages between parent and school bonds and later delinquency. Results indicated reduced delinquency was associated with positive parent and school relationships. Parent and school bonds interacted such that linkages between parent bonding and youth delinquency were stronger when youth also had high school bonding - suggesting an additive effect. However, interactive effects were only found when youth remained in the same school and became nonsignificant if they transitioned to a new school. Findings support prior evidence that parent and school bonds - and their interaction - play a unique role in reducing delinquency. PMID- 29332982 TI - Attachment, Social Information Processing, and Friendship Quality of Early Adolescent Girls and Boys. AB - Sixth-graders (N = 223; 109 girls) completed questionnaires assessing their attachment security with their mothers and fathers, their social information processing (SIP) when faced with ambiguously caused hypothetical negative events involving a close friend, and the quality of the relationship with that friend. Aspects of more maladaptive SIP were significantly related to lower levels of security. The overall pattern of results did not provide strong evidence for mediation, although boys' anger did tend to mediate the relation between attachment to mother and friendship quality. Results are consistent with attachment theory and suggest that the mechanisms connecting attachment and friendship are specific with regard to the relationships boys and girls have with their fathers and mothers. PMID- 29332983 TI - Distinguishing Children Who Form New Best-Friendships from Those Who Do Not. AB - Three groups were identified using best-friendship nominations at two time points surrounding the transition to middle school (Time 1: Spring of 5th grade; Time 2: Fall of 6th grade): (i) children who had no best-friendship at Time 1, but had a best-friendship at Time 2 (best-friendship gain; N=109); (ii) children who had no best-friendship at either Time 1 or 2 (chronically best-friendless; N=105); and (iii) children with a best-friendship at both Times 1 and 2, but with different peers at each time (best-friendship change; N=120). Peer nominations of social behaviors and victimization were collected at Times 1 and 2. Findings suggest that attraction to similar others, in addition to increased displays of prosocial behaviors, facilitate the formation of new best-friendships for both initially best-friendless and best-friended children. PMID- 29332984 TI - White Matter Fiber-based Analysis of T1w/T2w Ratio Map. AB - Purpose: To develop, test, evaluate and apply a novel tool for the white matter fiber-based analysis of T1w/T2w ratio maps quantifying myelin content. Background: The cerebral white matter in the human brain develops from a mostly non-myelinated state to a nearly fully mature white matter myelination within the first few years of life. High resolution T1w/T2w ratio maps are believed to be effective in quantitatively estimating myelin content on a voxel-wise basis. We propose the use of a fiber-tract-based analysis of such T1w/T2w ratio data, as it allows us to separate fiber bundles that a common regional analysis imprecisely groups together, and to associate effects to specific tracts rather than large, broad regions. Methods: We developed an intuitive, open source tool to facilitate such fiber-based studies of T1w/T2w ratio maps. Via its Graphical User Interface (GUI) the tool is accessible to non-technical users. The framework uses calibrated T1w/T2w ratio maps and a prior fiber atlas as an input to generate profiles of T1w/T2w values. The resulting fiber profiles are used in a statistical analysis that performs along-tract functional statistical analysis. We applied this approach to a preliminary study of early brain development in neonates. Results: We developed an open-source tool for the fiber based analysis of T1w/T2w ratio maps and tested it in a study of brain development. PMID- 29332985 TI - CIVILITY: Cloud based Interactive Visualization of Tractography Brain Connectome. AB - Cloud based Interactive Visualization of Tractography Brain Connectome (CIVILITY) is an interactive visualization tool of brain connectome in the cloud. This application submits tasks to remote computing grids were the CIVILITY tractography pipeline is deployed. The application will list the running tasks for the user and once a task is completed the brain connectome is visualized using Hierarchical Edge Bundling. The analysis pipeline uses FSL tools (bedpostx and probtrackx2) to generate a triangular matrix indicating the connectivity strength between different regions in the brain. This work is motivated by medical applications in which expensive computational tasks such as brain connectivity is needed and to provide a state of the art visualization tool of Brain Connectome. This work does not contribute any novelty with respect to the visualization methodology, is rather a new resource for the neuroimaging community. This work is submitted to the SPIE Biomedical Applications in Molecular, Structural, and Functional Imaging conference. The source code of this application is available in NITRC. PMID- 29332986 TI - FADTTSter: Accelerating Hypothesis Testing With Functional Analysis of Diffusion Tensor Tract Statistics. AB - Functional Analysis of Diffusion Tensor Tract Statistics (FADTTS) is a toolbox for analysis of white matter (WM) fiber tracts. It allows associating diffusion properties along major WM bundles with a set of covariates of interest, such as age, diagnostic status and gender, and the structure of the variability of these WM tract properties. However, to use this toolbox, a user must have an intermediate knowledge in scripting languages (MATLAB). FADTTSter was created to overcome this issue and make the statistical analysis accessible to any non technical researcher. FADTTSter is actively being used by researchers at the University of North Carolina. FADTTSter guides non-technical users through a series of steps including quality control of subjects and fibers in order to setup the necessary parameters to run FADTTS. Additionally, FADTTSter implements interactive charts for FADTTS' outputs. This interactive chart enhances the researcher experience and facilitates the analysis of the results. FADTTSter's motivation is to improve usability and provide a new analysis tool to the community that complements FADTTS. Ultimately, by enabling FADTTS to a broader audience, FADTTSter seeks to accelerate hypothesis testing in neuroimaging studies involving heterogeneous clinical data and diffusion tensor imaging. This work is submitted to the Biomedical Applications in Molecular, Structural, and Functional Imaging conference. The source code of this application is available in NITRC. PMID- 29332987 TI - Elevated Serum miR-7, miR-9, miR-122, and miR-141 Are Noninvasive Biomarkers of Acute Pancreatitis. AB - Background: It has been reported that several microRNAs (miRNAs), such as miR 141, miR-9, and miR-122, are involved in the regulation of pancreatitis-related proteins or that their levels change in acute pancreatitis (AP) animal models. However, the serum levels, as well as the clinical diagnostic and prognostic values, of these miRNAs in AP patients remain unclear. Furthermore, as a pancreas (islet) enriched miRNA, miR-7 was reported to be downregulated in AP patients, which requires further verification. Methods: The levels of miR-7, miR-9, miR 122, and miR-141 were examined and compared using qRT-PCR among 80 severe AP patients, 80 mild AP patients, and 74 healthy controls. Results: The serum levels of these four miRNAs were increased markedly in the AP patients compared with the controls, and these levels decreased significantly after effective therapy. Particularly, the level of miR-7 was higher in severe AP patients than in mild AP patients. ROC curve analysis demonstrated that four miRNAs could be used as potential biomarkers for AP. Moreover, these miRNAs showed strong positive correlations with CRP, which may be associated with inflammation. Conclusions: The serum miR-7, miR-9, miR-122, and miR-141 levels were increased in AP patients. These 4 miRNAs may represent diagnostic and prognostic biomarkers for AP. PMID- 29332988 TI - The Effect of Jaw Position on Perceptual and Acoustic Characteristics of Speech. AB - Bite blocks are used to stabilize the jaw and to isolate tongue and lip movements from that of the mandible during speech and nonspeech activities. Ten normally speaking young adults produced sentences with an unconstrained jaw and with unilateral placement of 2-mm and 5-mm bite blocks. Six listeners rated sentences spoken without either bite block as the most natural sounding. Spectral characteristics of /s/, /?/ and /t/ (sibilant frication and stop bursts) differed significantly with than without bite blocks, such that mean spectral energy decreased, and variation and skew of spectral energy increased. Spectral kurtosis did not change for the group, but 2 participants exhibited highly kurtotic /s/ spectra without a bite block that normalized with bite blocks. The second formant frequency for the high vowel /i/ was lower with bite blocks; there was no systematic difference in F2 slope for diphthongs. Segmental and suprasegmental timing of speech articulation was not affected significantly by these small bite blocks. This study provides support for using small bite blocks to isolate the tongue from the jaw without large effects on speech, but cautions that speech is likely to sound less natural than when produced with an unconstrained jaw. PMID- 29332989 TI - Art Therapy and Cognitive Processing Therapy for Combat-Related PTSD: A Randomized Controlled Trial. AB - This randomized controlled trial was designed to determine if art therapy in conjunction with Cognitive Processing Therapy (CPT) was more effective for reducing symptoms of combat posttraumatic stress disorder (PTSD) than CPT alone. Veterans (N = 11) were randomized to receive either individual CPT, or individual CPT in conjunction with individual art therapy. PTSD Checklist-Military Version and Beck Depression Inventory-II scores improved with treatment in both groups with no significant difference in improvement between the experimental and control groups. Art therapy in conjunction with CPT was found to improve trauma processing and veterans considered it to be an important part of their treatment as it provided healthy distancing, enhanced trauma recall, and increased access to emotions. PMID- 29332990 TI - Order preservation of expected information content using Unscented Transform approximation of multivariate prior distributions in HIV 2-LTR experiment design. AB - Numerical computation of the expected information content of a prospective experimental design is computationally expensive, requiring calculating the Kullback-Leibler divergence of the posterior distribution from the prior for simulated data from a large sample of points from the prior distribution. In this work, we investigate whether the Unscented Transform (UT) of the prior distribution can provide an adequate estimate of the expected information content in the context of experiment design for a previously validated HIV-1 2-LTR model. Three different schedules with evenly distributed time points have been used to generate the experimental data along with the incorporation of qPCR noise for the study. The UT shows promise in estimating information content by preserving the optimal ordering of 2-LTR sample collection schedules, when compared to completely stochastic sampling from the underlying multivariate distributions. PMID- 29332991 TI - Prospective HIV Clinical Trial Comparison by Expected Kullback-Leibler Divergence. AB - The sample frequency and volume of blood that can be drawn from a single patient is meticulously restricted under the human subject protection protocols established by an institutional review board (IRB). Consequently, the amount of samples that can be taken during a particular experiment is limited. In order to ensure an effective experiment design, considerations must be taken choosing when to take patient samples. A validated model of HIV-1 viral replication and 2-LTR production is exploited to find sub-optimal sampling schedules that maximize information content of the experiment outcome. This is done through a Forward Stepwise Regression (FSR) process with Kullback Liebler Divergence (KLD) as a selection criterion. Suboptimal schedules are found for an experiment taking four sample points over a possible span of 20 weeks. All schedules found with the FSR process contain significantly more information than both a uniform schedule and a schedule used in a previous experiment with 4 sample points. This work demonstrates the advantages of using KLD as a tool in the experiment design process to increase information content. PMID- 29332992 TI - Experiment Design for Early Molecular Events in HIV Infection. AB - The recent introduction of integrase inhibitors to the HIV antiviral repertoire permits us to create in vitro experiments that reliably terminate HIV infection at the point of chromosomal integration. This allows us to isolate the dynamics of a single round of infection, without needing to account for the influence of multiple overlapping rounds of infection. By measuring the various nucleic acid concentrations in a population of infected target cells at multiple time points, we can infer the rates of these molecular events with great accuracy, which allows us to compare the rates between target cells with different functional phenotypes. This information will help in understanding the behavior of the various populations of reservoir cells such as active and quiescent T-cells which maintain HIV infection in treated patients. In this paper, we introduce a family of models of the early molecular events in HIV infection, with either linear dynamics or age-structured delays at each step. We introduce an experimental design metric based on the delta AIC (Akaike Information Criteria) between a model fit for simulated data from a matching model vs a mismatched model, which allows us to determine a candidate experiment design's ability to discriminate between models. Using parameters values drawn from experimentally-derived priors corrupted with appropriate measurement noise, we confirm that a proposed sampling schedule at different time points allows us to consistently discriminate between candidate models. PMID- 29332993 TI - Composition of the C6+ Fraction of Natural Gas by Multiple Porous Layer Open Tubular Capillaries Maintained at Low Temperatures. AB - As the sources of natural gas become more diverse, the trace constituents of the C6+ fraction are of increasing interest. Analysis of fuel gas (including natural gas) for compounds with more than 6 carbon atoms (the C6+ fraction) has historically been complex and expensive. Hence, this is a procedure that is used most often in troubleshooting rather than for day-to-day operations. The C6+ fraction affects gas quality issues and safety considerations such as anomalies associated with odorization. Recent advances in dynamic headspace vapor collection can be applied to this analysis and provide a faster, less complex alternative for compositional determination of the C6+ fraction of natural gas. Porous layer open tubular capillaries maintained at low temperatures (PLOT-cryo) form the basis of a dynamic headspace sampling method that was developed at NIST initially for explosives in 2009. This method has been recently advanced by the combining of multiple PLOT capillary traps into one "bundle," or wafer, resulting in a device that allows the rapid trapping of relatively large amounts of analyte. In this study, natural gas analytes were collected by flowing natural gas from the laboratory (gas out of the wall) or a prepared surrogate gas flowing through a chilled wafer. The analytes were then removed from the PLOT-cryo wafer by thermal desorption and subsequent flushing of the wafer with helium. Gas chromatography (GC) with mass spectrometry (MS) was then used to identify the analytes. PMID- 29332994 TI - Application of the Advanced Distillation Curve Method to the Comparison of Diesel Fuel Oxygenates: 2,5,7,10-Tetraoxaundecane (TOU), 2,4,7,9-Tetraoxadecane (TOD), and Ethanol/Fatty Acid Methyl Ester (FAME) Mixtures. AB - Although they are amongst the most efficient engine types, compression-ignition engines have difficulties achieving acceptable particulate emission and NOx formation. Indeed, catalytic after-treatment of diesel exhaust has become common and current efforts to reformulate diesel fuels have concentrated on the incorporation of oxygenates into the fuel. One of the best ways to characterize changes to a fuel upon the addition of oxygenates is to examine the volatility of the fuel mixture. In this paper, we present the volatility, as measured by the advanced distillation curve method, of a prototype diesel fuel with novel diesel fuel oxygenates: 2,5,7,10-tetraoxaundecane (TOU), 2,4,7,9-tetraoxadecane (TOD), and ethanol/fatty acid methyl ester (FAME) mixtures. We present the results for the initial boiling behavior, the distillation curve temperatures, and track the oxygenates throughout the distillations. These diesel fuel blends have several interesting thermodynamic properties that have not been seen in our previous oxygenate studies. Ethanol reduces the temperatures observed early in the distillation (near ethanol's boiling temperature). After these early distillation points (once the ethanol has distilled out), B100 has the greatest impact on the remaining distillation curve and shifts the curve to higher temperatures than what is seen for diesel fuel/ethanol blends. In fact, for the 15% B100 mixture most of the distillation curve reaches temperatures higher than those seen diesel fuel alone. In addition, blends with TOU and TOD also exhibited uncommon characteristics. These additives are unusual because they distill over most the distillation curve (up to 70%). The effects of this can be seen both in histograms of oxygenate concentration in the distillate cuts and in the distillation curves. Our purpose for studying these oxygenate blends is consistent with our vision for replacing fit-for-purpose properties with fundamental properties to enable the development of equations of state that can describe the thermodynamic properties of complex mixtures, with specific attention paid to additives. PMID- 29332995 TI - On the Functional Form of Temporal Discounting: An Optimized Adaptive Test. AB - The tendency to discount the value of future rewards has become one of the best studied constructs in the behavioral sciences. Although hyperbolic discounting remains the dominant quantitative characterization of this phenomenon, a variety of models have been proposed and consensus around the one that most accurately describes behavior has been elusive. To help bring some clarity to this issue, we propose an Adaptive Design Optimization (ADO) method for fitting and comparing models of temporal discounting. We then conduct an ADO experiment aimed at discriminating among six popular models of temporal discounting. Rather than supporting a single underlying model, our results show that each model is inadequate in some way to describe the full range of behavior exhibited across subjects. The precision of results provided by ADO further identify specific properties of models, such as accommodating both increasing and decreasing impatience, that are mandatory to describe temporal discounting broadly. PMID- 29332996 TI - Optimal Population and Exhaustible Resource Constraints. AB - A large literature considers the optimal size and growth rate of the human population, trading off the utility value of additional people with the costs of a larger population. In this literature, an important parameter is the social weight placed on population size; a standard result is that a planner with a larger weight on population chooses larger population levels and growth rates. We demonstrate that this result is conditionally overturned when an exhaustible resource constraint is introduced: if the discount rate is small enough, the optimal population today decreases with the welfare weight on population size. That is, a more total-utilitarian social planner could prefer a smaller population today than a more average-utilitarian social planner. We also present a numerical illustration applied to the case of climate change, where we show that under plausible real-world parameter values, our result matters for the direction and magnitude of optimal population policy. PMID- 29332997 TI - EPR UNIFORM FIELD SIGNAL ENHANCEMENT BY DIELECTRIC TUBES IN CAVITIES. AB - The dielectric tube resonator (DTR) for EPR spectroscopy is introduced. It is defined as a metallic cylindrical TE011 microwave cavity that contains a dielectric tube centered on the axis of the cylinder. Contour plots of dimensions of the metallic cylinder to achieve resonance at 9.5 GHz are shown for quartz, sapphire, and rutile tubes as a function of wall thickness and average radius. These contour plots were developed using analytical equations and confirmed by finite element modeling. They can be used in two ways: design of the metallic cylinder for use at 9.5 GHz that incorporates a readily available tube such as a sapphire tube intended for NMR, or design of a custom procured tube for optimized performance for specific sample-size constraints. The charts extend to the limiting condition where the dielectric fills the tube. However, the structure at this limit is not a dielectric resonator due to the metal wall and does not radiate. In addition, the uniform field (UF) DTR is introduced. Development of the UF resonator starting with a dielectric tube resonator is shown. The diameter of the tube remains constant along the cavity axis, and the diameter of the cylindrical metallic enclosure increases at the ends of the cavity to satisfy the uniform field condition. This structure has advantages over the previously developed UF TE011 resonators: higher resonator efficiency parameter Lambda, convenient overall size when using sapphire tubes, and higher quality data for small samples. The DTR and UF DTR structures fill the gap between free space and dielectric resonator limits in a continuous manner. PMID- 29332998 TI - High-pressure EPR spectroscopy studies of the E. coli lipopolysaccharide transport proteins LptA and LptC. AB - The use of pressure is an advantageous approach to the study of protein structure and dynamics because it can shift the equilibrium populations of protein conformations toward higher energy states that are not of sufficient population to be observable at atmospheric pressure. Recently, the Hubbell group at the University of California, Los Angeles, reintroduced the application of high pressure to the study of proteins by electron paramagnetic resonance (EPR) spectroscopy. This methodology is possible using X-band EPR spectroscopy due to advances in pressure intensifiers, sample cells, and resonators. In addition to the commercial availability of the pressure generation and sample cells by Pressure Biosciences Inc., a five-loop-four-gap resonator required for the initial high pressure EPR spectroscopy experiments by the Hubbell group, and those reported here, was designed by James S. Hyde and built and modified at the National Biomedical EPR Center. With these technological advances, we determined the effect of pressure on the essential periplasmic lipopolysaccharide (LPS) transport protein from Escherichia coli, LptA, and one of its binding partners, LptC. LptA unfolds from the N-terminus to the C-terminus, binding of LPS does not appreciably stabilize the protein under pressure, and monomeric LptA unfolds somewhat more readily than oligomeric LptA upon pressurization to 2 kbar. LptC exhibits a fold and relative lack of stability upon LPS binding similar to LptA, yet adopts an altered, likely monomeric, folded conformation under pressure with only its C-terminus unraveling. The pressure-induced changes likely correlate with functional changes associated with binding and transport of LPS. PMID- 29332999 TI - An integrated electrolysis - electrospray - ionization antimicrobial platform using Engineered Water Nanostructures (EWNS) for food safety applications. AB - Engineered water nanostructures (EWNS) synthesized utilizing electrospray and ionization of water, have been, recently, shown to be an effective, green, antimicrobial platform for surface and air disinfection, where reactive oxygen species (ROS), generated and encapsulated within the particles during synthesis, were found to be the main inactivation mechanism. Herein, the antimicrobial potency of the EWNS was further enhanced by integrating electrolysis, electrospray and ionization of de-ionized water in the EWNS synthesis process. Detailed physicochemical characterization of these enhanced EWNS (eEWNS) was performed using state-of-the-art analytical methods and has shown that, while both size and charge remain similar to the EWNS (mean diameter of 13 nm and charge of 13 electrons), they possess a three times higher ROS content. The increase of the ROS content as a result of the addition of the electrolysis step before electrospray and ionization led to an increased antimicrobial ability as verified by E. coli inactivation studies using stainless steel coupons. It was shown that a 45-minute exposure to eEWNS resulted in a 4-log reduction as opposed to a 1.9-log reduction when exposed to EWNS. In addition, the eEWNS were assessed for their potency to inactivate natural microbiota (total viable and yeast and mold counts), as well as, inoculated E.coli on the surface of fresh organic blackberries. The results showed a 97% (1.5-log) inactivation of the total viable count, a 99% (2-log) reduction in the yeast and mold count and a 2.5-log reduction of the inoculated E.coli after 45 minutes of exposure, without any visual changes to the fruit. This enhanced antimicrobial activity further underpins the EWNS platform as an effective, dry and chemical free approach suitable for a variety of food safety applications and could be ideal for delicate fresh produce that cannot withstand the classical, wet disinfection treatments. PMID- 29333000 TI - Distributions of emissions intensity for individual beef cattle reared on pasture based production systems. AB - Life Cycle Assessment (LCA) of livestock production systems is often based on inventory data for farms typical of a study region. As information on individual animals is often unavailable, livestock data may already be aggregated at the time of inventory analysis, both across individual animals and across seasons. Even though various computational tools exist to consider the effect of genetic and seasonal variabilities in livestock-originated emissions intensity, the degree to which these methods can address the bias suffered by representative animal approaches is not well-understood. Using detailed on-farm data collected on the North Wyke Farm Platform (NWFP) in Devon, UK, this paper proposes a novel approach of life cycle impact assessment that complements the existing LCA methodology. Field data, such as forage quality and animal performance, were measured at high spatial and temporal resolutions and directly transferred into LCA processes. This approach has enabled derivation of emissions intensity for each individual animal and, by extension, its intra-farm distribution, providing a step towards reducing uncertainty related to agricultural production inherent in LCA studies for food. Depending on pasture management strategies, the total emissions intensity estimated by the proposed method was higher than the equivalent value recalculated using a representative animal approach by 0.9-1.7 kg CO2-eq/kg liveweight gain, or up to 10% of system-wide emissions. This finding suggests that emissions intensity values derived by the latter technique may be underestimated due to insufficient consideration given to poorly performing animals, whose emissions becomes exponentially greater as average daily gain decreases. Strategies to mitigate life-cycle environmental impacts of pasture based beef productions systems are also discussed. PMID- 29333001 TI - Evidence for the Involvement of Lipid Rafts and Plasma Membrane Sphingolipid Hydrolases in Pseudomonas aeruginosa Infection of Cystic Fibrosis Bronchial Epithelial Cells. AB - Cystic fibrosis (CF) is the most common autosomal genetic recessive disease caused by mutations of gene encoding for the cystic fibrosis transmembrane conductance regulator. Patients with CF display a wide spectrum of symptoms, the most severe being chronic lung infection and inflammation, which lead to onset of cystic fibrosis lung disease. Several studies indicate that sphingolipids play a regulatory role in airway inflammation. The inhibition and downregulation of GBA2, the enzyme catabolizing glucosylceramide to ceramide, are associated with a significant reduction of IL-8 production in CF bronchial epithelial cells. Herein, we demonstrate that GBA2 plays a role in the proinflammatory state characterizing CF cells. We also report for the first time that Pseudomonas aeruginosa infection causes a recruitment of plasma membrane-associated glycosphingolipid hydrolases into lipid rafts of CuFi-1-infected cells. This reorganization of cell membrane may be responsible for activation of a signaling cascade, culminating in aberrant inflammatory response in CF bronchial epithelial cells upon bacterial infection. Taken together, the presented data further support the role of sphingolipids and their metabolic enzymes in controlling the inflammatory response in CF. PMID- 29333003 TI - Histopathological study of gallbladder carcinoma and its mimics with role of carcinoembryonic antigen immunomarker in resolving diagnostic difficulties. AB - Background: Gallbladder carcinoma (GBC) sometimes presents with nonspecific signs, without forming a mass, mimicking benign gallbladder (GB) diseases. On the contrary, benign GB diseases may mimic GBC. Material and Methods: We retrospectively reviewed 107 cases over a period of 3 years (May 2012-April 2015), which included 41 review cases and 66 departmental cases. Carcinoembryonic antigen (CEA) immunomarker expression was done. Results: In 27 of the 41 review cases, the diagnoses were benign diseases of GB associated with mild-to-moderate dysplasia of mucosal glands; however, after review in our department, it was found that of these 27 cases, nine cases were actually well-differentiated adenocarcinoma of GB with diffuse CEA expression and were mis diagnosed as benign diseases of GB with dysplasia. In 32 out of 66 departmental cases, initial histopathological diagnoses were benign diseases of GB associated with dysplastic mucosal glands. After CEA staining, 11 out of these 32 cases turned out to be adenocarcinoma of the GB. Among the rest 34 (34/66) departmental primary GBC cases, no CEA expression was seen in six cases, focal expression was seen in 12 cases, and diffuse expression was seen in 16 cases. No diffuse CEA expression was seen in benign diseases of the GB with dysplasia. Conclusion: GBC sometimes may not be diagnosed radiologically and grossly as it often presents without any mass and specific signs, which lead to under diagnosis. Some benign cases may mimic GBC and may complicate histological diagnosis. CEA expression may aid as an additional diagnostic aid in resolving diagnostic dilemmas. PMID- 29333004 TI - DROSHA rs642321 Polymorphism Influence Susceptibility to Childhood Acute Lymphoblastic Leukemia: A Preliminary Report. AB - Introduction: It has been well known that the microRNA biogenesis is involved in the pathogenesis of various diseases. We investigated the possible association between DROSHA rs642321 variant and risk of acute lymphocytic leukemia (ALL). Materials and Methods: We genotyped 75 children diagnosed with ALL and 115 age- and sex-matched children with no history of cancer of any type (as the control group) by the tetra amplification refractory mutation system-polymerase chain reaction. Results: We found that DROSHA rs642321 C > T variant significantly decreased the risk of ALL in codominant (TT vs. CC: odds ratio [OR] = 0.33, 95% confidence interval [CI] = 0.14-0.80, P = 0.020) and dominant (TT + CT vs. CC: OR = 0.51, 95% CI = 0.27-0.94, P = 0.037) inheritance model tested. The rs642321 T allele was associated with protective against ALL (OR = 0.58, 95% CI = 0.38-0.88, P = 0.011) in comparison with C allele. Conclusion: The study findings revealed that DROSHA rs642321 variant decreased the risk of pediatrics ALL in an Iranian population. Larger sample sizes with different ethnicities are needed to validate our findings. PMID- 29333005 TI - Prognostic Factors and Survival Outcomes of Intracranial Ependymoma Treated with Multimodality Approach. AB - Objectives: We aimed to analyze treatment outcomes of intracranial ependymoma (ICE) treated at our institute with multimodality approach. Materials and Methods: Demography, treatment details, and survival data of 40 patients (2005 2012) were collected in a predesigned pro forma. Kaplan Meier method was used to analyze disease-free survival (DFS) and the impact of prognostic factors was determined using univariate analysis (log-rank test). Multivariate analysis was performed using Cox-proportional hazard model. SPSS version 21.0 was used for all statistical analysis. Results: Male:female ratio was 29:11. Gross total resection: subtotal resection or less was 42.5%: 57.5%. A total of 16 patients (40%) had anaplastic histology. All except two patients received adjuvant radiotherapy. Four patients received concurrent chemotherapy (temozolomide [TMZ]) and 10 patients received adjuvant chemotherapy (6 carboplatin plus etoposide; 4 TMZ). Median follows up was 18 months (2-60 months). Median DFS for the entire cohort was 22.42 months. The estimated 1, 2, and 3 years DFS was found to be 58.5%, 41%, and 30.7%, respectively. On univariate analysis, patients receiving higher radiation dose (56 Gray vs. 60 Gray; hazard ratio [HR] 0.366; 95% confidence interval [CI] 0.142-0.9553; P = 0.02) and lower MIB labeling index (<20 vs. >=20; HR 0.238; 95% CI 0.092-0.617; P = 0.001) had a better DFS. Higher radiation dose continued to be an independent prognostic factor on multivariate analysis (HR 0.212; 95% CI 0.064-0.856; P = 0.03). Conclusion: ICE has guarded prognosis. Adjuvant radiotherapy to a higher radiation dose improves survival. Higher MIB labeling index connotes a dismal survival despite the use of radiotherapy and chemotherapy. PMID- 29333002 TI - S1P Lyase Regulation of Thymic Egress and Oncogenic Inflammatory Signaling. AB - Sphingosine-1-phosphate (S1P) is a potent lipid signaling molecule that regulates pleiotropic biological functions including cell migration, survival, angiogenesis, immune cell trafficking, inflammation, and carcinogenesis. It acts as a ligand for a family of cell surface receptors. S1P concentrations are high in blood and lymph but low in tissues, especially the thymus and lymphoid organs. S1P chemotactic gradients are essential for lymphocyte egress and other aspects of physiological cell trafficking. S1P is irreversibly degraded by S1P lyase (SPL). SPL regulates lymphocyte trafficking, inflammation and other physiological and pathological processes. For example, SPL located in thymic dendritic cells acts as a metabolic gatekeeper that controls the normal egress of mature T lymphocytes from the thymus into the circulation, whereas SPL deficiency in gut epithelial cells promotes colitis and colitis-associated carcinogenesis (CAC). Recently, we identified a complex syndrome comprised of nephrosis, adrenal insufficiency, and immunological defects caused by inherited mutations in human SGPL1, the gene encoding SPL. In the present article, we review current evidence supporting the role of SPL in thymic egress, inflammation, and cancer. Lastly, we summarize recent progress in understanding other SPL functions, its role in inherited disease, and SPL targeting for therapeutic purposes. PMID- 29333006 TI - Rational Use of Imaging to Stage Breast Cancer: Evidences for a Selective Approach. AB - Introduction: Staging investigations at diagnosis are customary to accurately assign a clinical stage before therapy. The practice of routine imaging in patients asymptomatic for metastasis is not recommended but widely adopted. This study was done to reexamine the basis behind guideline recommendations and to identify the factors predictive of asymptomatic metastasis. Methods: Oncology records of 200 breast cancer patients in clinical Stages I-III at diagnosis were prospectively reviewed. Baseline demographic information, tumor characteristics, and pathological data including molecular typing were collected. The prevalence of metastasis deduced and accuracy of bone scan, chest X-ray (CXR), liver ultrasound, and computed tomography (CT) chest analyzed. Patient and tumor characteristics predictive of asymptomatic metastasis tested for significance using appropriate statistical tests. Results: The prevalence of asymptomatic metastasis was 13.5%. Bone lesions (8%) were the most common metastatic site followed by lungs (7%) and liver (1%). Sensitivity, specificity, positive- and negative-predictive values of bone scans and CT chest were 100%, 97%, 74%, 100%, and 92%, 99%, 87, 3%, 99.4%, respectively. The above values for ultrasound abdomen and CXRs were 100%, 99%, 93%, 100% and 21%, 94%, 20%, 94%, respectively. Tumor size (P = 0.001), tumor Stage T1/T2 versus T3/T4 (P = 0.0002), nodal stages N0/N1 versus N2/N3 (P = 0.001), high histological Grade G I versus GII/GIII (P = 0.0001) and molecular types were strongly predictive of metastatic disease. Conclusion: The routine use of imaging to detect distant metastasis in asymptomatic patients is not recommended in newly diagnosed breast cancer. A selective approach may be adopted in individuals with tumor more than 5 cm, advanced nodal disease, higher histological grade, and aggressive molecular types. PMID- 29333007 TI - Utility of Cluster of Differentiation 5 and Cluster of Differentiation 117 Immunoprofile in Distinguishing Thymic Carcinoma from Pulmonary Squamous Cell Carcinoma: A Study on 1800 Nonsmall Cell Lung Cancer Cases. AB - Background: Mediastinum harbors a mixed bag of neoplastic lesions with varied therapeutic and prognostic implications. Distinguishing pulmonary squamous cell carcinoma from thymic carcinoma is a challenging task owing to rather nonspecific clinicoradiological features and a considerable overlap in histomorphological features. Thus, we evaluated the diagnostic utility of cluster of differentiation 5 (CD5) and CD117 immunohistochemical markers in distinguishing these tumors. Materials and Methods: The archives of department of histopathology were retrospectively reviewed from June 2012 to May 2016. Formalin-fixed paraffin embedded blocks of 1800 cases diagnosed as nonsmall cell lung carcinoma were retrieved, and immunohistochemical expression of CD5 and CD117 was evaluated in these cases. Results: Adenocarcinoma (980; 54.44%) was the most common histological subtype of lung carcinoma observed in our study. CD117 was positive in 171 out of 1800 cases (9.5%) of which 120 cases (70.17%) were adenocarcinoma, followed by 40 cases (23.4%) of squamous cell carcinoma. Immunoreactivity for CD5 was observed in 209 cases (11.61%), 200 (95.7%) cases of which were diagnosed as adenocarcinoma. None of the cases diagnosed as squamous cell carcinoma on histomorphology showed CD5 immunoexpression. Conclusion: While thymic squamous cell carcinomas are well known for CD5 and CD117 coexpression, none of the cases of squamous cell carcinoma arising in lung express CD5. These markers are a diagnostic tool to distinguish a primary lung squamous cell carcinoma from thymic carcinoma, particularly in the setting of a central pulmonary lesion with mediastinal involvement. PMID- 29333009 TI - Peripheral and Central Giant Cell Lesions in Children: Institutional Experience at Subharti Dental College and Hospital. AB - Introduction: Giant cell lesions (GCG) are a group of varied lesions that contain a multitude of multinucleated, osteoclast like giant cells within connective tissue stroma. These include giant cell granulomas which may be central (CGCG), if they lie within the jaw bone, or, peripheral (PGCG) if they lie within the soft tissue. Giant cell granulomas comprised 9.29% of all oral lesions. This case series comprises of 5 giant cell lesions in children between the ages of 4 to 12 years. Materials and Methods: A retrospective analysis was conducted of all patients who were diagnosed with giant cell lesions and treated over a period of 10 years (from August 2004 to August 2014) at Subharti Dental College and Hospital, Meerut, India. Results: A total of 5 giant cell lesions were identified in this case series, of which 2 cases were diagnosed as PGCG and 3 cases as CGCG. Surgical excision and curettage was performed for 2 peripheral lesions under local anesthesia while 1 central lesion was excised under general anesthesia. Two central lesions were treated with a non-surgical approach using intralesional corticosteroid. Conclusion: Our experience suggests that a correct diagnosis and complete surgical excision with curettage is effective in complete management of oral giant cell lesions in the pediatric age group. PMID- 29333008 TI - Metabolic Syndrome and Breast Cancer Risk. AB - Objective: The study was meant to estimate the prevalence of metabolic syndrome in patients with breast cancer and to establish its role as an independent risk factor on occurrence of breast cancer. Materials and Methods: Fifty women aged between 40 and 80 years with breast cancer and fifty controls of similar age were assessed for metabolic syndrome prevalence and breast cancer risk factors, including age at menarche, reproductive status, live births, breastfeeding, and family history of breast cancer, age at diagnosis of breast cancer, body mass index, and metabolic syndrome parameters. Results: Metabolic syndrome prevalence was found in 40.0% of breast cancer patients, and 18.0% of those in control group (P = 0.02). An independent and positive association was seen between metabolic syndrome and breast cancer risk (odds ratio = 3.037; 95% confidence interval 1.214-7.597). Conclusions: Metabolic syndrome is more prevalent in breast cancer patients and is an independent risk factor for breast cancer. PMID- 29333010 TI - Sinusoidal Obstruction Syndrome during Treatment for Wilms' Tumor: A Life threatening Complication. AB - Context: Survival rates exceed 90% in Wilms' tumor (WT). Actinomycin-D (ACT-D) which is indispensable in the management of WT is associated with the development of sinusoidal obstruction syndrome (SOS), a potentially fatal complication. Aims: The aim is to study the presentation, management, and outcome of SOS complicating ACT-D administration in WT. Settings and Design: Retrospective file review conducted in a Pediatric Hematology-Oncology unit. Materials and Methods: Patients diagnosed and treated for WT from January 2012 to December 2015 were analyzed. SOS was diagnosed clinically, based on McDonalds criteria, requiring two of the following: jaundice, hepatomegaly and/or right upper quadrant pain, weight gain with or without ascites. Results: Of 104 patients treated, SOS occurred in 5 (4.8%). Age: 6 months to 5 years, 3 were girls. Tumor involved left kidney in 3, right in 1 and a horseshoe kidney in 1. Histopathology was consistent with WT in 4 and clear cell sarcoma kidney in 1. One had pulmonary metastases. Three developed SOS preoperatively and two during adjuvant chemotherapy. None received radiotherapy. Clinical manifestations comprised of jaundice, hepatomegaly, ascites/weight gain, respiratory distress, hypotension, and encephalopathy. Laboratory findings included thrombocytopenia, elevated serum transaminases, and coagulopathy. Treatment included fluid restriction, broad spectrum antibiotics, and transfusional support. Two children received N-acetyl cysteine infusion. Defibrotide was administered to two patients. Four recovered and one succumbed to multi-organ failure. Two patients were safely re-challenged with 50% doses of ACT-D. Conclusions: SOS is a clinical diagnosis. Systematic supportive care can enable complete recovery. Under close monitoring, re challenge of ACT-D can be performed in gradually escalating doses. PMID- 29333011 TI - Oral Verrucous Carcinoma: Ten Year Experience from a Tertiary Care Hospital in India. AB - Background: Verrucous carcinoma of the oral cavity (OVC) is an uncommon variant of oral squamous cell carcinoma (OSCC). The clinical presentation and surgical outcomes of OVC are unique; however, the management protocols for OVC are largely extrapolated from OSCC. Objectives: The aim is to study the clinical, histopathological demographics, and outcome of OVC at a tertiary care referral hospital in South India. To study the need for lymph node dissection and the role of adjuvant therapy for close resection margins. Materials and Methods: A retrospective review of all patients diagnosed to have OVC between January 2005 and April 2015 was undertaken. Data were collected from hospital records and telephonic interview when possible. Results: Thirty patients were diagnosed to have OVC. The most common site of the presentation was the buccal mucosa. Twenty three patients had wide local excision of the primary tumor and seven patients had neck dissection as well. None of the patients who underwent neck dissection had node-positive disease pathologically. The margins were considered close in nine patients, only one of these patients received adjuvant radiation therapy; despite among the patients with close resection margins, there was no recurrence or disease-related mortality. Among the thirty patients, there was only one patient who had recurred locally and there was no disease associated mortality. Conclusions: OVC is a unique variant of OSCC which has a good prognosis. Routine lymphadenectomy can be avoided. PMID- 29333012 TI - Squamous Cell Carcinoma Lung with Skeletal Muscle Involvement: A 8-year Study of a Tertiary Care Hospital in Kashmir. AB - Aims: Lung cancer is the most common malignancy throughout the world. Nonsmall cell lung cancer (NSCLC) is the most common type, and squamous cell type is most common in India. Mostly, patients present with chest-related symptoms and signs. Isolated skeletal muscle metastasis (ISMM) is rarely seen. The aim was to see muscle metastasis and its prognosis. Materials and Methods: We are presenting our data of 8 years about this common malignancy with relation to muscle metastasis, either alone or with other system metastasis. Results: Muscle metastasis is seen 1.5% of patients, with male: female of 8:1. Overall median survival was 15 months and progression-free survival was 12 months. Conclusion: One peculiarity seen was ISMM with no pulmonary system and severe paraneoplastic hypercalcemia. Local therapy may be having an impact on overall survival in metachronous muscle involvement. PMID- 29333013 TI - Comparative Study of Imprint Cytology and Histopathology of Soft Tissue Tumors. AB - Background: The components of soft tissue are fibroblasts, collagen, vascular structures, fatty tissue, skeletal muscles, smooth muscles, and neural tissue. The real incidence of soft tissue tumors (STTs) is difficult to estimate because most of them are benign (Benign: Malignant-100:1). Aims: The aim of the present study was undertaken to note the patterns of presentation of patients with STTs and to evaluate the findings of imprint cytology (IC) and histopathological examination (HPE) of STTs. Materials and Methods: The present study was undertaken for 1 year. A total of 41 patients with clinically and radiologically diagnosed STTs were included in the study. Following surgery, imprint smear was taken for each tumor, before delivering the tissue to 10% formalin. HPE was subsequently performed. Results: The age of the patients ranged from 4 months to 80 years with a mean of 35.6 +/- 17.5 years. The ratio of males to females was 1.05:1. HPE revealed that 21 (51.2%) tumors were benign and 20 (48.8%) malignant. Imprint smears revealed 16 (39%) tumors to be benign and 20 (48.8%) malignant. IC was inconclusive in 5 (12.2%) cases. The sensitivity of IC was found to be 89.5% and specificity 82.35%. The positive predictive value of IC was 85%. The accuracy of IC for diagnosis of both benign and malignant tumors was found to be 75%. Conclusion: IC of STTs is a rapid and simple method of intraoperative diagnosis, and it can serve as a viable alternative to frozen section biopsy, particularly in rural settings. PMID- 29333014 TI - Is Colorectal Cancer in Young (<40 Years) Different from those in the Elderly (>40 Years): Experience from a Regional Care Center. AB - Background: Colorectal cancer (CRC) is considered a disease of elderly. There has been a steady decrease in the incidence in those aged >50 years, with an alarming increase noted in adults aged <50 years. Subjects and Methods: We retrospectively analyzed 89 patients diagnosed with CRC aged <40 years between the years 2010 and 2014. Their clinical profile, treatment, and outcomes were studied. Results: The median age was 33 years with a male preponderance (56.2%). Most common symptoms were lower gastrointestinal bleed (48.3%) followed by abdominal pain (46.1%). Most common sites were rectum (50.6%) followed by colon. Histology in all was adenocarcinoma. Most tumors were moderately differentiated (54%) and were stage 4 (36%). Most common sites of metastases were liver (46.9%) followed by peritoneum and ovaries. Majority underwent surgery with adjuvant chemotherapy, with/without radiotherapy. Chemotherapy was administered in 70 patients, majority receiving FOLFOX-4 regimen (88.6%). Median survival was 23 months. Survival in early stage[1],[2] was significantly higher than in advanced stages (3 and above), 34 and 19 months (P = 0.0287), in those aged >40 years compared to <40-35 versus 23 months (P = 0.0029), nonmetastatic compared to metastatic disease - 26 versus 14 months (P = 0.00196), and females compared to males - 26 and 18 months (P = 0.0242). There was no significant difference in survival with respect to tumor grade or site of metastases (hepatic versus extrahepatic). Conclusions: Colorectal carcinoma in young seems to be an emerging problem in India. Any young patient presenting with symptoms suggestive of a colonic malignancy should be evaluated promptly and treated aggressively. PMID- 29333015 TI - A Profile of Pediatric Solid Tumors: A Single Institution Experience in Kashmir. AB - Aims: The purpose of this retroprospective study was to study the epidemiological characteristics and outcomes of children with solid tumors at our institution. Subjects and Methods: Three hundred and three pediatrics patients registered at Regional Cancer Centre (RCC), Sher-i-Kashmir Institute of Medical Sciences (SKIMS), Srinagar, Kashmir, between January 2008 and June 2014, were analyzed with regard to demographic status, presenting complaints, investigations, treatment, morbidity, and outcomes. Standard statistical methods were used for analysis. Results: Among 19,880 patients registered at RCC, SKIMS from January 2008 till June 2014, 986 (4.9%) were of pediatric age group. Of these, 303 (30.7%) patients had pediatric solid tumors. The male-to-female ratio was 1.04, there were no infants (up to 27 days), 6% were infants and toddlers (28 days-23 months), 39% were children (2-11 years), and 55% were adolescents (12-19 years). There were 86% rural patients and 14% urban patients. Most common were central nervous system tumors (25.74%), followed by germ cell tumors (14.52%), primitive neuroectodermal tumor/Ewing sarcoma (13.86%), Wilms' tumor (8.9%), osteosarcoma (6.6%), rhabdomyosarcoma (5.6%), colorectal cancer (5.28%), neuroblastoma (4.9%), and retinoblastoma (2.6%). Outcomes: 33.9% patients went into remission, 35.64% were defaulters, 2.97% had stable disease, 2.31% had partial response, 20.79% expired, and 3.96% were still on treatment. Of all these patients, 5.28% had a relapse. Conclusions: Across the series, advanced stage of presentation, a high incidence of default and poor follow-up was seen. Multiple interrelated factors are responsible for the poorer outlook of childhood cancer in Kashmir. PMID- 29333016 TI - Clinicopathological Features and Outcomes in Primary Central Nervous System Lymphoma: A 10-year Experience. AB - Context: Primary central nervous system lymphoma (PCNSL) is a variant of extranodal lymphoma, accounting for 4% of primary central nervous system tumors. PCNSL was more common in immunocompetent individuals. International Extranodal Lymphoma Study Group (IELSG) scoring was used for prognostication. High-dose methotrexate regimens along with radiotherapy improved outcomes in PCNSL. Aims: The aim of this study is to analyze the clinical and pathological features, progression-free survival (PFS), and overall survival (OS) in patients with PCNSL. Materials and Methods: Data of patients with PCNSL between 2005 and 2016 were retrospectively analyzed. Outcome was analyzed in patients who received chemotherapy. GraphPad Prism software for Windows Version 6 was used to plot the Kaplan-Meier curves for PFS and OS. Log-rank test was used to calculate P values. P < 0.05 was considered as statistically significant. Results: A total of 42 patients were available for analysis. Of these, 34 patients who received chemotherapy were evaluable for outcome parameters. The median age at presentation was 46 years (range, 10-75) with male-to-female ratio of 2.2:1. Only 2 (4.7%) patients were HIV positive. Diffuse large B-cell lymphoma (DLBCL) was the most common histology seen in 41 (97.6%) patients. Using IELSG risk scoring, scores of 8 (19%), 19 (45.2%), and 15 (35.8%) were stratified into low, intermediate, and high risk. The median PFS and OS were 11 months (range, 2-72) and 15.9 months (2.4-80.4), respectively. The median OS was 36.2 months (range, 8.8-72), 15.6 months (2-36), and 6.1 months (2.6-12.7) in low-, intermediate-, and high-risk groups, respectively, which was statistically significant (P = 0.0002). Conclusions: Immunocompetent patients with PCNSL outnumber immunocompromised patients. DLBCL was the most common histology, and IELSG risk stratification significantly predicts the outcome in PCNSL. PMID- 29333017 TI - Correlation of Hormone Receptor and Human Epidermal Growth Factor Receptor-2/neu Expression in Breast Cancer with Various Clinicopathologic Factors. AB - Background: A significant development in the breast carcinoma management is the correlation between the presence of hormone receptors in the tumor and response to hormonal therapy and chemotherapy. Human epidermal growth factor receptor 2/neu (Her-2/neu) overexpression also serves as a very useful parameter to predict response to herceptin. Aim of Study: The study was conducted to correlate immunohistochemical expression of markers such as estrogen receptor (ER), progesterone receptor (PR), and Her-2/neu with various clinicopathologic parameters. Materials and Methods: The study included 509 cases of breast carcinoma over a period of 5 years (from May 2009 to May 2014). Immunohistochemistry (IHC) for ER, PR, and her-2/neu was performed. Results: ER positivity was observed in 42.8% (218/509) cases, PR positivity in 31.8% (194/509) cases whereas her-2 neu positivity was seen in 40.7% (203/509) cases. Triple marker (ER, PR, and Her-2/neu) negative cases were 23.6% (120/509) cases. ER and PR expression was found to have a statistically significant correlation with tumor grade. Statistically significant correlation was observed between tumor size and tumor grade and her-2/neu expression. Her-2/neu expression showed statistically significant association with tumor stage. As the tumor grade increased, the proportion of triple-negative cases went on increasing, which was statistically significant. Conclusion: IHC has an increasingly important prognostic role in determination of factors that affect clinicopathologic features. Nevertheless, the results of this large series showed different patterns of findings with respect to clinicopathologic features. PMID- 29333018 TI - Induction Chemotherapy in Technically Unresectable Locally Advanced T4a Oral Cavity Squamous Cell Cancers: Experience from a Regional Cancer Center of South India. AB - Objectives: The present study aimed to investigate the efficacy, toxicity, and impact of induction chemotherapy (IC) in technically unresectable T4a oral cavity squamous cell cancers (OSCCs). Materials and Methods: Patients diagnosed with technically unresectable locally advanced T4a OSCC from January 2013 and November 2016 at our center, who received 2-3 cycles of IC and then assessed for resectability, were reviewed retrospectively. Patients' profile, response rates and toxicity of IC, resectability status, and overall survival (OS) were evaluated. Statistical analyses were performed using SPSS version 17.0 for Windows (SPSS Inc., Chicago, IL, USA). Results: Totally 80 patients received IC, and of them 58 (72.5%) were males. Median age at diagnosis was 44 years (range, 34-62 years). All our patients received IC with doublet regimen. Majority of the patients had buccal mucosa cancers (73.8%), followed by gingivobuccal complex (21.2%) and oral tongue (5%) primaries. After IC, partial response was achieved in 17 (21.3%) patients, stable disease in 49 (61.3%) patients and disease progression was noted in 14 (17.4%) patients. Post-IC, resectability was achieved in 19 (23.8%) of 80 patients, but 4 of them did not undergo surgery due to logistic and personal reasons. The median OS of patients who underwent surgery followed by adjuvant local therapy (n = 15) was 16.9 months (95% CI: 15.2-19.8 months) and for those treated with nonsurgical local therapy (n = 65) was 8.8 months (95% CI: 6.8-10.6 months) (log-rank P = 0.000). Conclusions: IC had a manageable toxicity profile and achieved resectability in 23.8% of our patients with technically unresectable T4a OSCC. Patients underwent resection had a significantly better median OS than those who received nonsurgical local treatment. PMID- 29333020 TI - Oxaliplatin-induced Peripheral Neuropathy in South Indian Cancer Patients: A Prospective Study in Digestive Tract Cancer Patients. AB - Purpose: The aim of the current study is to report our prospective experience on the prevalence of oxaliplatin-induced peripheral neuropathy (OXAIPN) in patients with digestive tract cancers treated with oxaliplatin-based combination therapy. Materials and Methods: A total of 219 patients scheduled to be treated with oxaliplatin-based combination therapy were prospectively examined at baseline and follow-up during the therapy between November 2014 and December 2016. The incidence of acute OXAIPN was measured using a descriptive questionnaire (yes/no question) based on sum of number of symptoms present and NCI-CTCAE version 4.03 was applied to clinically grade the severity of chronic OXAIPN. Results: Acute and chronic OXAIPN was found in 108 of 219 (49.3%) and 127 of 219 (58%) patients, respectively. Out of 11 acute OXAIPN symptoms, the vast majority of patients manifested cold-induced pharyngolaryngeal (63.8%) dysesthesias or perioral (61.1%) paresthesias. Development of acute OXAIPN was predictive of subsequent development of chronic OXAIPN (P = 0.0001). All the patients received a median cumulative dose of 780 mg/m2 (range: 130-1040 mg/m2). There was a significant correlation between the patients who received the median cumulative dose and the development of chronic OXAIPN. The incidences of OXAIPN in patients with median cumulative dose of <=780 mg/m2 was 51/120 (42.5%) and >780 mg/m2 was OXAIPN 76/99 (76.7%) (P = 0.0001). Conclusion: The current study results demonstrate that the vast majority of patients who receive oxaliplatin-based combination chemotherapy will manifest acute OXAIPN that may contribute to the development of chronic peripheral neuropathy on repeated courses of drug administration. PMID- 29333019 TI - Modulated Radiotherapy with Concurrent and Adjuvant Temozolomide for Anaplastic Gliomas: Indian Single-center Data. AB - Objective: To evaluate early clinical outcome for anaplastic gliomas (AG) treated in the era of modulated radiotherapy (RT) and concurrent plus adjuvant temozolomide (TMZ) in an Indian setting. Materials and Methods: Fifty-three patients with AGs treated with modulated RT and concurrent (95%) and adjuvant TMZ (90%) were analyzed. About 80% of patients had Karnofsky performance status (KPS) at least 90 with 30% seizure at presentation. Postoperative magnetic resonance imaging was available in 65% cases and RT dose was 60 Gy in 30 fractions. First posttreatment imaging was performed at 1 month and then at 3 and 6 months post-RT and then every 3 months. Kaplan-Meier analysis was used to estimate disease-free survival (DFS) and overall survival (OS), and analysis was done using SPSS version 18.0. Results: With median follow-up of 25 months, 2-year DFS and OS were 75% and 88%. There were only 5% symptomatic central nerves system and 8% symptomatic hematological toxicities. At the 1st evaluation, 30.4% had complete response (CR), at 3 months 40%, and at 6 months 43%. At 6 months, only 4% had progressive disease. Forty-six patients were evaluable till the last follow-up with and 55% had stable to CR. On univariate analysis for DFS, KPS at presentation >90 (P = 0.001) and response at 6 months (P = 0.02) were significant and for OS KPS at presentation (P = 0.004) alone. Conclusion: Modulated RT with TMZ among Grade III glioma patients resulted in minimum treatment-related toxicities and encouraging survival. Molecular prognostic markers will determine most favorable groups in future. PMID- 29333022 TI - 2017 ASCO Highlights on Gastointestinal Malignancies. PMID- 29333021 TI - Efficacy and Safety of Ibrutinib in Indian Patients with Relapsed or Refractory Chronic Lymphocytic Leukemia and Mantle Cell Lymphoma: Cases from a Named Patient Program. AB - Context: This named patient program evaluated the safety and efficacy of ibrutinib, a selective inhibitor of Bruton's tyrosine kinase in Indian patients with relapsed/refractory chronic lymphocytic leukemia (CLL, with/without chromosome 17 deletion [del17p]) and mantle cell lymphoma (MCL). Subjects and Methods: The eight enrolled patients (relapsed/refractory CLL: n = 6 [4/6 patients with del17p] and relapsed/refractory MCL: n = 2) had median age of 55 years (range, 52-60) and had received a median of 3 (CLL patients) and 4 (MCL patients) prior therapies. Patients received once-daily dose of ibrutinib (420 mg: CLL, 560 mg: MCL). Results: In CLL patients, the median time to response was 3 months (range, 0.5-7) and five of six patients had partial response (PR) whereas one achieved complete response (CR). Median time on treatment was 11.5 months (range, 8-14); five patients continued treatment and one was recommended stem cell transplantation (SCT). Of the two MCL patients, one achieved PR and one showed CR and advanced to SCT. In CLL patients, the median (range) hemoglobin level improved from 9.8 g/dL (7.2-11) at baseline to 12.0 g/dL (9.5-13.2) and median (range) platelet count improved from 150,000 cells/MUL (21,000-195,000) at baseline to 190,350 cells/MUL (130,000-394,000) at the time of analysis (July 2016). Most adverse events (AEs) reported were infections (n = 2). No Grade 3-4 or serious AEs, dose reductions, or treatment discontinuation due to AEs were reported. Conclusions: In this first real-world experience in Indian patients, ibrutinib demonstrated therapeutic efficacy in relapsed/refractory CLL (with/without del17p) and MCL. Safety results were consistent with the current known profile of ibrutinib. PMID- 29333023 TI - Nivolumab - Pearls of Evidence. AB - Purpose: Nivolumab is one of the most extensively studied immune checkpoint inhibitors across various tumor types. In this narrative review, the current clinical efficacy and safety data of anti-programmed death-1 (PD-1) nivolumab for nonsmall cell lung cancer (NSCLC) and renal cell cancer (RCC) are elucidated. Methods: Systematic search was done on Pubmed, Medline, Embase, Web of Knowledge, and Cochrane Central through September 2016 for controlled prospective interventional studies of nivolumab across two indications - NSCLC and RCC. There was heterogeneity at all levels of abstraction; hence, author did not plan to provide a meta-analysis, but instead, a narrative elaboration of results structured around the conceptual frameworks. Results: Checkpoint receptor PD-1 is a negative regulatory molecule expressed by activated T and B lymphocytes. Binding of PD-1 to its ligands, programmed death-ligands 1 and 2, results in the downregulation of lymphocyte activation. Nivolumab is a fully human PD-1 immune checkpoint inhibitor. Nivolumab inhibits the interaction between PD-1 and its ligands and promotes immune responses including antitumor immune response and antigen-specific T-cell responses to both foreign antigens as well as self antigens. In 2013, the Food and Drug Administration granted fast track designation for nivolumab in NSCLC, RCC, and melanoma. Conclusion: The encouraging literature on nivolumab lends credibility to the promise of immune checkpoint blockade, not just in terms of its feasibility as an oncotherapeutic strategy but also as a key tool of the future in the therapeutic approaches against advanced cancers. PMID- 29333024 TI - A Risk-benefit Assessment Approach to Selection of Adjuvant Chemotherapy in Elderly Patients with Early Breast Cancer: A Mini Review. AB - Decision-making regarding the use and selection of adjuvant chemotherapy for breast cancer in elderly patients is challenging due to the presence of age related comorbidities, frailty, and competing causes of mortality. One area, relatively neglected in most guidelines, is the effect of competing causes of mortality on presumed benefit of adjuvant chemotherapy for breast cancer in these patients. This article utilizes a clinical case to illustrate the principles of risk-benefit assessment of adjuvant chemotherapy in elderly patients. We suggest an approach that incorporates validated tools for estimating survival benefits of adjuvant chemotherapy, geriatric assessment, predicting toxicity, and estimating remaining life expectancy without cancer. Integration of all these variables provides a better picture of the possible benefits and harms of adjuvant chemotherapy in this population compared to conventional approaches that incorporate tumor-related variables and nonstandard measures of geriatric assessment. PMID- 29333025 TI - Primary Leiomyosarcoma of Breast Presenting with Metastasis: An Atypical Presentation with Dismal Prognosis. AB - Leiomyosarcoma is an extremely uncommon subtype of breast sarcoma, with <50 cases reported in the English literature till date. Patients usually present at an early stage and follow an indolent course. We reported an unusual case of leiomyosarcoma of breast in a post -menopausal female,presented with right side breast lump and pain right side hip. Histomorphological evaluation and immunohistochemistry confirmed the diagnosis. The patient received palliative radiotherapy 20 Gy in 5 fractions to right iliac bone and was started on chemotherapy comprising of docetaxel and epirubicin. Leiomyosarcoma of breast is known to have local recurrence and hematogenous metastasis, usually 10-15 years after the primary diagnosis. Aggressive behavior of leiomyosarcomas in the form of such a rapidly growing, fungating mass of 15 cm in greatest dimension with hematogenous metastasis at the time of initial presentation, as seen in our case, is extremely unusual. PMID- 29333027 TI - Ewing's Sarcoma of the Calcaneum. AB - Ewing's sarcoma of the calcaneum is rare. Radiological features of this tumor can be misinterpreted as other benign bone tumors due to its rarity. The overall prognosis of Ewing's sarcoma of calcaneum is inferior compared to other sites of this tumor. Hence, these tumors should have extensive radiological evaluation and histological confirmation as misdiagnosis and treatment delays will have detrimental outcomes. PMID- 29333026 TI - Renal Lymphoma: Primary or First Manifestation of Aggressive Pediatric B-cell Lymphoma. AB - Renal lymphoma is an uncommon renal tumor in children. Unlike renal lymphomas presenting as bilateral disease and renal failure, we report a boy who presented with unilateral renal involvement. After initial nephrectomy, he achieved remission with multiagent chemotherapy but relapsed systemically within 3 months. He was initiated on salvage chemotherapy with autologous bone marrow transplant. Even though the initial manifestation was localized lymphoma eventually, it turned out to be a systemic disease. He succumbed to disease at 14 months from diagnosis. PMID- 29333028 TI - Primary Renal Cell Lymphoma: Case Report, Diagnosis, and Management. AB - The symptoms of primary renal lymphoma (PRL) may mimic a renal cell carcinoma. Since the diagnosis is mostly after a radical nephrectomy, we recommend a percutaneous biopsy or cytology from the renal mass in patients who have features suggestive of a lymphoma. A magnetic resonance imaging may give an image more specific for a lymphoma. There are no clinical trials for the treatment of PRL, but all previously published case reports used R-CHOP and a few patients did better than the median survival of 6 months. PMID- 29333029 TI - Flagellate Rash: An Unusual Complication of Bleomycin Therapy - A Case Report with Brief Review of Literature. AB - Chemotherapy-induced skin rashes are common toxicities encountered which require careful assessment and evaluation as rashes could be a manifestation of primary malignancy itself and a variety of drugs used in combination further complicate the clinical scenario. Bleomycin is an anticancer antibiotic derived from Streptomyces verticillus and has been commonly used in the treatment of Hodgkin's disease, germ cell tumors and for pleurodesis. There are various dermatological adverse effects of bleomycin which have been previously reported in literature including skin peeling, hyperkeratosis, nail bed changes, Raynaud's phenomenon, and palmoplantar desquamation. Bleomycin-induced skin rashes are seen infrequently now a day due to its declining use in clinical practice. We report here a 29-year-old male with Stage III germ cell tumor who developed widespread flagellate rash after receiving 3 cycles of bleomycin-based chemotherapy which responded to treatment with local steroids and omission of bleomycin from further chemotherapy cycles. PMID- 29333030 TI - Multiple Myeloma Presenting as Thyroid Plasmacytoma. AB - Thyroid gland and thyroid cartilage infiltration in multiple myeloma (MM) are rare. Here, we discuss a patient who presented with hoarseness of voice and was found to have a hypodense lesion in right lobe of thyroid involving thyroid and cricoid cartilage. Fine-needle aspiration cytology with immunohistochemistry revealed extramedullary plasmacytoma of thyroid. MM was ruled out initially by serum protein electrophoresis, immunofixation, and bone marrow biopsy. Later, lytic lesions were found in multiple bones on radiation planning scan and he was finally diagnosed as case of MM with thyroid involvement. Treatment strategies of MM and thyroid plasmacytoma are also discussed briefly. PMID- 29333031 TI - A Case of Multifocal Eosinophilic Granuloma Involving Spine and Pelvis in a Young Adult: A Radiopathological Correlation. AB - We present a case of multiple osteolytic lesions in a 28-year-old adult who presented with headache, back pain, and hip pain of 6 months. There was no history of localized swelling or rise of temperature, no history of weight loss or evening rise of temperature. On examination, there were no focal neurological deficits. Routine laboratory investigations, including total leukocyte counts, differential leukocyte counts, hemoglobin, and platelet counts, were within normal limits. There was a borderline elevation of erythrocyte sedimentation rate. Non enhanced computer tomography (NECT) demonstrated no abnormality in the brain or skull bones. However, incidentally, a lytic lesion involving the third cervical (C3) vertebral body and the neural arch was detected which also demonstrated a soft tissue component adjacent to the lytic lesion. These findings warranted further work up; and magnetic resonance imaging of whole spine and pelvis was performed that revealed multiple bony lesions involving the cervical vertebrae, head and neck, bilateral femur, sacrum, and iliac bones. Computed tomography-guided biopsy was performed from the C3 vertebral lytic lesion which showed features of eosinophilic granuloma on histopathological evaluation. PMID- 29333032 TI - Macrodystrophia Lipomatosa: Clinico-patho-radiological Correlation. AB - Macrodystrophia lipomatosa is a rare congenital nonhereditary developmental anomaly. It is characterized by hamartomatous proliferation of the soft tissue leading to disproportionate enlargement of the limbs and digits. Since it leads to diagnostic dilemma, it has to be differentiated from various other conditions as they differ in course, prognosis, complications, and treatment. Herein, we present two cases with localized gigantism and discuss the various differential diagnoses and need for clinico-patho-radilogical correlation for diagnosis of this rare entity. PMID- 29333033 TI - Gastric Teratoma: An Unusual Presentation and Location. AB - The gastric teratoma is a rare tumor that usually presents as an abdominal mass, with or without features of gastric outlet obstruction. We report two cases of gastric teratoma; one - mature in a male neonate and another - ruptured immature gastric teratoma in a female neonate. PMID- 29333034 TI - Antinociceptive and Anti-inflammatory Effects of Triterpenes from Pluchea quitoc DC. Aerial Parts. AB - Background: Pluchea quitoc DC. (Asteraceae), a medicinal plant known as "quitoco," "caculucage," "tabacarana" and "madre-cravo," is indicated for inflammatory conditions such as bronchitis, arthritis, and inflammation in the uterus and digestive system. Objective: This study evaluated the analgesic and anti-inflammatory activities of the triterpenes compounds obtained from P. quitoc aerial parts. Materials and Methods: The triterpenes compounds beta-amyrin, taraxasterol and pseudo-taraxasterol in a mixture (T); beta-amyrin, taraxasterol and pseudo-taraxasterol acetates in a mixture (Ta); beta-amyrin, taraxasterol, pseudo-taraxasterol acetates in a mixture with beta-amyrin, taraxasterol and pseudo-taraxasterol myristates (Tafe) were analyzed in the models of nociception and inflammation. The evaluation of antinociceptive activity was carried out by the acetic acid-induced writhing and tail-flick tests while leukocyte migration to the peritoneal cavity was used for anti-inflammatory profile. Results: The oral administration of T or Tafe (40 mg/kg and 70 mg/kg) and Ta (70 mg/kg) to mice reduced acetic acid-induced writhing. The tail-flick response of mice was not affected by T or Tafe (40 mg/kg). T or Tafe (40 mg/kg) and Ta (70 mg/kg) also inhibited peritoneal leukocyte infiltration following the injection of carrageenan. Conclusion: The results demonstrate the anti-inflammatory and peripheral antinociceptive activity of the triterpenes beta-amyrin, taraxasterol, and pseudo-taraxasterol that were decreased when these were acetylated; while the acetylated triterpenes in mixture with myristyloxy triterpenes improved this activity. These compounds seem, at least in part, to be related to the plant's reported activity. SUMMARY: The mixtures of hydroxylated, acetylated, and myristate triterpenes isolated from hexanic extracts of Pluchea quitoc DC. were analyzed in the models of nociception and inflammation in mice. The results demonstrate the anti-inflammatory and peripheral antinociceptive activity of the triterpenes beta-amyrin, taraxasterol, and pseudo-taraxasterol. This study showed too that the activity of triterpenes may be decreased by their being acetylated, while the acetylated triterpenes in mixture with myristate triterpenes improved this activity.Abbreviations Used: T: Triterpenes compounds beta-amyrin, taraxasterol, and pseudo-taraxasterol in a mixture, Ta: Triterpenes compounds beta-amyrin, taraxasterol and pseudo-taraxasterol acetates in a mixture, Tafe: Triterpenes compounds beta-amyrin, taraxasterol, pseudo-taraxasterol acetates in a mixture with beta-amyrin, taraxasterol and pseudo-taraxasterol myristates, Ctrl: Control, Indo: Indomethacin, Dexa: Dexamethasone, EtOAc: Ethyl acetate, MeOH: Methanol. PMID- 29333035 TI - The Activity of Immunoglobulin Y Anti-Mycobacterium tuberculosis on Proliferation and Cytokine Expression of Rat Peripheral Blood Mononuclear Cells. AB - Objective: It has long been known that chickens, like mammals, are capable of producing antigen-specific immunoglobulin Y (IgY), which functions similar to IgG. The present study was performed to investigate the activity of IgY anti Mycobacterium tuberculosis on proliferation, interleukin (IL)-2, and interferon (IFN)-gamma expression of rat peripheral blood mononuclear cells (PBMCs). Materials and Methods: The activity of IgY anti-M. tuberculosis in different doses (25, 50, and 100 MUg/ml) on rat PBMCs proliferation was determined by 3 (4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay. The production of IL-2 and IFN-gamma in the PBMC supernatant was determined using enzyme-linked immunosorbent assay. Investigation was performed on mRNA expression of IL-2 and IFN-gamma by reverse transcription-polymerase chain reaction (RT-PCR). Results: IgY anti-M. tuberculosis significantly increased the proliferation of rat PBMC. Furthermore, IgY anti-M. tuberculosis dose dependently increased IL-2 and IFN gamma production in PBMC, suggesting that pharmacological activities of IgY anti M. tuberculosis in PBMC may be mediated by regulating the production of cytokines. In the RT-PCR, expression of cytokines such as IL-2 and IFN-gamma in PBMC cultures was increased by IgY anti-M. tuberculosis. Conclusions: We concluded that increasing IL-2 and IFN-gamma productions in PBMC was related to IgY anti-M. tuberculosis, stimulating the mRNA transcription (gene expression) of these cytokines which can induce proliferation of PBMC. SUMMARY: Lohman laying hens immunized intramuscularly with antigens of M. tuberculosis can produce specific IgY anti-Mycobacterium tuberculosis complexIgY anti-M. tuberculosis significantly increased the proliferation of rat peripheral blood mononuclear cell (PBMC)IgY anti-M. tuberculosis dose dependently increased interleukin 2 (IL 2) and interferon (IFN)-gamma production in PBMCIn the reverse transcription polymerase chain reaction, expression of cytokines such as IL-2 and IFN-gamma in PBMC cultures was increased by IgY anti-M. tuberculosisThe increasing IL-2 and IFN-gamma productions in PBMC were related to stimulation on mRNA transcription which can induce proliferation of PBMC. Abbreviations Used: IgY anti-M. tuberculosis: Immunoglobulin Y anti-Mycobacterium tuberculosis; IL-2: Interleukin 2; IFN-gamma: Interferon-gamma; PBMCs: Peripheral blood mononuclear cells. PMID- 29333036 TI - Autonomic Receptors and Nitric-Oxide Involvements in Mediating Vasorelaxation Effect Induced by Syzygium polyanthum Leaves Extract. AB - Context: Syzygium polyanthum (Wight) Walp leaves are traditionally used by Malays for treating hypertension. Our previous study showed that aqueous extract of S. polyanthum (AESP) and methanolic extract of S. polyanthum (MESP) extracts of S. polyanthum leaves significantly reduced blood pressure of normotensive Wistar Kyoto (WKY) and spontaneously hypertensive rats (SHR). Aims: This study aimed to investigate their vasorelaxation potential and the possible involvement of autonomic receptors and nitric oxide in mediating their effect. Settings and Design: Both extracts will be tested on isolated thoracic aorta rings of WKY and SHR. The involvement of autonomic receptors and nitric oxide will be elucidated using respective blockers. Materials and Methods: Isolated thoracic aorta rings from WKY and SHR were mounted onto myograph chambers to measure changes in the aorta tension. Increasing concentrations of AESP and MESP, from 1 MUg/ml to 10 mg/ml were added onto the myograph chambers. Blockers such as atropine (1 MUM), phentolamine (1 MUM), propranolol (1 MUM), and Nomega-nitro-l-arginine methyl ester (100 MUM) were preincubated before addition of extracts to check for involvement of muscarinic, alpha- and beta-adrenergic receptors (AR) as well as nitric oxide, respectively. Statistical Analysis Used: Two-way ANOVA, followed by post hoc Bonferroni test was used, where P < 0.05 (two-tailed) was considered statistically significant. Results: AESP and MESP caused significant vasorelaxations through nitric oxide pathway. The former was mediated through alpha-AR while the latter was mediated by beta-adrenergic and muscarinic receptors. Conclusion: Vasorelaxation effect by AESP and MESP involved nitric oxide pathway which is possibly mediated by the autonomic receptors. SUMMARY: This is the first study that reveals significant vasorelaxation effect induced by Syzygium polyanthum leaves extract. Vasorelaxation maybe one of the possible mechanisms for its ability to reduce blood pressure. This study also suggested that the vasorelaxation effect by this plant extract may involve nitric oxide pathway mediated by the autonomic receptors. Abbreviations Used: AESP: Aqueous extract of Syzygium polyanthum leaves. MESP: Methanolic extract of Syzygium polyanthum leaves. SHR: spontaneously hypertensive rat, WKY: Wistar-Kyoto rat. PMID- 29333037 TI - Curcumin and Natural Derivatives Inhibit Ebola Viral Proteins: An In silico Approach. AB - Background: Ebola viral disease is a severe and mostly fatal disease in humans caused by Ebola virus. This virus belongs to family Filoviridae and is a single stranded negative-sense virus. There is no single treatment for this disease which puts forth the need to identify new therapy to control and treat this fatal condition. Curcumin, one of the bioactives of turmeric, has proven antiviral property. Objective: The current study evaluates the inhibitory activity of curcumin, bisdemethoxycurcumin, demethoxycurcumin, and tetrahydrocurcumin against Zaire Ebola viral proteins (VPs). Materials and Methods: Molecular simulation of the Ebola VPs followed by docking studies with ligands comprising curcumin and related compounds was performed. Results: The highest binding activity for VP40 is -6.3 kcal/mol, VP35 is -8.3 kcal/mol, VP30 is -8.0 kcal/mol, VP24 is -7.7 kcal/mol, glycoprotein is -7.1 kcal/mol, and nucleoprotein is 6.8 kcal/mol. Conclusion: Bisdemethoxycurcumin shows better binding affinity than curcumin for most VPs. Metabolite tetrahydrocurcumin also shows binding affinity comparable to curcumin. These results indicate that curcumin, curcuminoids, and metabolite tetrahydrocurcumin can be potential lead compounds for developing a new therapy for Ebola viral disease. SUMMARY: Curcumin, bisdemethoxycurcumin, and demethoxycurcumin are active constituents of turmeric. Tetrahydrocurcumin is the major metabolite of curcumin formed in the body after consumption and absorption of curcuminoidsCurcuminoids have proven antiviral activityBisdemethoxycurcumin showed maximum inhibition of Ebola viral proteins (VPs) among the curcuminoids in the docking procedure with a docking score as high as -8.3 kcal/molTetrahydrocurcumin showed inhibitory activity against Ebola VPs close to that of curcumin's inhibitory action. Abbreviations Used: EBOV: Ebola virus, GP: Glycoprotein, NP: Nucleoprotein, NPT: Isothermal-isobaric Ensemble, amount of substance (N), pressure (P) and temperature (T) conserved, NVE: Canonical ensemble, amount of substance (N), volume (V) and temperature (T) conserved, VP: Viral protein. PMID- 29333038 TI - Antihyperglycemic Potential of Saponin-enriched Fraction from Pithecellobium dulce Benth. Seed Extract. AB - Background: Indian traditional system of medicine uses Pithecellobium dulce for the treatment of diabetes mellitus. Objectives: This study aims to develop an extract rich in saponins derived from seeds of the plant and to evaluate its antihyperglycemic potential in vitro and in vivo. Materials and Methods: Defatted seeds were extracted with methanol and processed to afford saponin-enriched fraction (Pithecellobium dulce saponin-enriched fraction [PDSEF]). This fraction was evaluated for its potential to inhibit enzymes such as alpha-glucosidase and alpha-amylase, in vitro. The fraction was subjected to oral toxicity study followed by in vivo sucrose tolerance test. An analytical high-performance liquid chromatography method was developed for fingerprinting of the fraction. Results: The method adopted for enrichment of saponins was robust enough to enrich saponin content to 96.37% +/-1.21% w/w. PDSEF displayed superior inhibition of enzymes (alpha-glucosidase and alpha-amylase with IC50 of 5.12 +/- 0.15 MUg/ml and 17.28 +/- 0.23 MUg/ml, respectively) compared to acarbose. It was found to be safe in mice up to 2000 mg/kg and significantly prevented blood glucose level in sucrose tolerance test by inhibiting enzymes responsible for hydrolysis of sucrose. Conclusion: PDSEF displayed excellent antihyperglycemic activity in vitro and in vivo and should be evaluated further to develop it as a promising drug for the management of diabetes mellitus. SUMMARY: Saponin enriched fraction from P. dulce seeds showed significant inhibition of key enzymes responsible for digestion of polysaccharides. The saponin enriched fraction was found to be safe in mice and prevented blood glucose level in mice in sucrose tolerance test. Abbreviations Used: PDSEF: Pithecellobium dulce saponin-enriched fraction, IC50: Inhibitory concentration 50, HPLC: High performance liquid chromatography. PMID- 29333039 TI - Pharmacognostic Assesment of the Endemic and Vulnerable Medicinal Climber Cayratia pedata (Lam.) Gagnep. var. glabra Gamble and Its Antibacterial Activity. AB - Objective: The objective of this study is to evaluate a meticulous pharmacognostic cram is to supplement constructive information with regard to its identification, characterization, and standardization of endemic and endangered medicinal climber Cayratia pedata var. glabra and also screening the antibacterial activity of this climber. Materials and Methods: The morphological characters of study plant, microscopic examination of leaf powder, anatomy of young stem, physicochemical analysis of plant powder, extractive values, phytochemical analysis, powder with different chemical reagents, fluorescence analysis of plant powder, and other World Health Organization (WHO) recommended for standardization were analyzed. The antibacterial activity of this study plant is also analyzed. Results: C. pedata var. glabra belongs to the family Vitaceae, commonly known as "Kattuppirandai" is one such endemic and endangered species in Thaisholai, Nilgiris South Division, Western Ghats. With the patronage of veteran ethnic group traditional knowledge of this region, the species C. pedata var. glabra was selected for the pharmacognostical examination and antibacterial screening. There were no pharmacognostical reports of this plant, specifically to determine the anatomical and other physicochemical standards required for its quality control. The current study deals with pharmacognostical parameters for the aerial parts of study plant, which mainly consists of macromorphological and microanatomical characters, physicochemical constants (ash values and extractive values), fluorescence analysis, and phytochemical screening, one of the WHO accepted parameter for the identification of medicinal plants. The pharmacognostical exploration was undertaken for this species with the purpose of sketch the pharmacopeial standards. The antibacterial activity of this plant confirms the therapeutic power. Conclusion: The information obtained from pharmacognostical studies will be of used for supplementary pharmacological and therapeutical evaluation of the species and will assist in standardization for quality, purity, and authentication with the help, of which adulteration and substitution can be prevented. The antibacterial activity of this plant confirm the traditional knowledge of local healers on the wound healing property of this species and also suggest this plant species can be used as a promising source for the development of new pharmaceuticals that address the therapeutic needs to cure infectious diseases. SUMMARY: The species C. pedata var. glabra was selected for present research work, since this species is listed in Red data book and has a wider use for different ailments among the tribal population of Thiashola due to its high medicinal value. Pharmacognostical profile was generated from macroscopical analysis, microscopical studies, powder analysis, physico-chemical constituent values, fluorescence analysis and preliminary phytochemical evaluation. The antibacterial activity of this plant confirms the therapeutic power. Abbreviations Used: WHO: World Health Organization; IUCN: International Union for the Conservation of Nature. PMID- 29333040 TI - Pharmacological Screening of Trachyspermum ammi for Antihyperlipidemic Activity in Triton X-100 Induced Hyperlipidemia Rat Model. AB - Background: Mortality rate is increasing due to cardiovascular problems throughout the world. These cardiac problems are directly associated with dyslipidemia. Aim: The aim of this study was to evaluate the antihyperlipidemic effect of aqueous extract and methanol extract of Trachyspermum ammi at 1 g/kg, 3 g/kg, and 5 g/kg dose levels in rats. Materials and Methods: For this purpose, 45 male albino rats were used and randomly divided into nine equal groups (n = 5). The lipid levels were increased after 24 h of single intraperitoneal injection of Triton X-100 (100 mg/kg) in rats. Aqueous and methanol extracts equivalent to 1 g/kg, 3 g/kg, and 5 g/kg were administered orally to the rats for 21 days. Atorvastatin (10 mg/kg) was used as standard drug. Blood samples were collected at 0, 2nd, 9th, 16th, and 23rd day by a direct cardiac puncture in Vacuette(r) heparin tubes. Serum was separated and then analyzed for lipid profile, liver function test (LFT), and renal function test (RFT) using standard diagnostic kits. Results: Results showed that extracts at 3 g/kg and 5 g/kg decreased the levels of total cholesterol, triglyceride, and low-density lipoprotein and increased high-density lipoprotein concentration in serum. T. ammi also decreased LFT and RFT parameters at the end of the study. Conclusion: T. ammi possessed antioxidant and antihyperlipidemic activities along with hepato- and nephro protective effects. SUMMARY: Aqueous and methanol extracts of T. ammi were administered orally at 1-, 3-, and 5 g/kg doses to hyperlipidemic rats (Triton X 100 induced hyperlipidemia) and atorvastatin (10 mg/kg, orally) was used as standard drug. Methanol extract at 5 g/kg showed antihyperlipidemic effect that is identical to that of standard drug.Abbreviations Used: LDL: Low-density lipoprotein; TC: Total cholesterol; VLDL: Very low-density lipoprotein; HDL: High density lipoprotein; T. ammi: Trachyspermum ammi; WHO: World Health Organization; CAD: Coronary artery disease; BHT: Butylated hydroxytoluene; BUN: Blood urea nitrogen; AST: Aspartate transaminase; ALT: Alanine transaminase; IP: Intraperitoneal. PMID- 29333041 TI - Pharmacological Evaluation of Hepatoprotective Activity of AHPL/AYTAB/0613 Tablet in Carbon Tetrachloride-, Ethanol-, and Paracetamol-Induced Hepatotoxicity Models in Wistar Albino Rats. AB - Background: Hepatotoxicity ultimately leads to liver failure. Conventional treatment options for hepatotoxicity are limited and not safe. Objective: Formulation AHPL/AYTAB/0613 is developed to provide safer and effective hepatoprotective drug of natural origin. A study was conducted to evaluate hepatoprotective activity of AHPL/AYTAB/0613 (three dosages) in comparison with marketed formulations in carbon tetrachloride (CCl4), ethanol, and paracetamol induced hepatotoxicity in Wistar albino rats. Materials and Methods: Three separate studies were conducted in models of CCl4, ethanol, and paracetamol induced hepatotoxicity. Seven groups of animals were studied comparatively to evaluate the efficacy of AHPL/AYTAB/0613 in low, medium, and high dosage in comparison with silymarin and a marketed polyherbal formulation. The drugs were orally administered to rats for 10 days in CCl4 model and for 14 days in ethanol and paracetamol models. Animals were weighed periodically. After the study period, blood was tested for serum glutamic-oxaloacetic transaminase (SGOT), serum glutamic pyruvic transaminase (SGPT), alkaline phosphatase (ALP), total bilirubin, and total protein levels. Liver tissue of sacrificed animals was examined histopathologically. Results: All the test formulations including all three dosages of AHPL/AYTAB/0613, significantly reduced levels of SGOT, SGPT, ALP, total bilirubin, in CCl4, ethanol, and paracetamol-induced hepatotoxicity models. There was significant increase in total protein level in all the tested formulations. All the test formulations effectively preserved the structural integrity of the hepatocellular membrane and liver cell architecture damaged by CCl4, ethanol, and paracetamol. When compared between groups, no statistically significant difference was observed. It can be concluded that AHPL/AYTAB/0613 possesses hepatoprotective activity in CCl4, ethanol, and paracetamol-induced hepatotoxicity in rats. Conclusion: AHPL/AYTAB/0613 can be effectively used as a hepatoprotective agent in the management of hepatitis caused due to various toxins. SUMMARY: A polyherbal formulation AHPL/AYTAB/0613 containing Bhringaraja Eclipta alba extract, Guduchi - Tinospora cordifolia extract, Daruharidra - Berberis aristata extract, Kakamachi - Solanum nigrum extract, Punarnava - Boerhaavia diffusa extract, Bhumyamalaki - Phyllanthus niruri extract, Kutaki - Picrorhiza kurroa extract, and Kalmegha - Andrograhis paniculata extract was assessed for its hepatoprotective activity. This activity was tested in carbon tetrachloride (CCl4), ethanol, and paracetamol-induced hepatotoxicity models in Wistar albino rats in comparison with two marketed formulations. It was observed that AHPL/AYTAB/0613 significantly reduced levels of serum glutamic-oxaloacetic transaminase, serum glutamic pyruvic transaminase, alkaline phosphatase, total bilirubin and also significantly increased total protein level. All the test formulations effectively preserved the structural integrity of the hepatocellular membrane and liver cell architecture damaged by CCl4, ethanol, and paracetamol. When compared between groups, no statistically significant difference was observed. Therefore, it was concluded that AHPL/AYTAB/0613 possesses hepatoprotective activity in CCl4, ethanol, and paracetamol-induced hepatotoxicity in rats.Abbreviations Used: CCl4: Carbon tetrachloride, SGOT: Serum glutamic-oxaloacetic transaminase, SGPT: Serum glutamic pyruvi transaminase, ALP: Alkaline phosphatase, UDCA: Ursodeoxycholic acid, US: United States, FDA: Food and Drug Administration, PBC: Primary biliary cirrhosis, GSTA1: Glutathione S-transferase A1, GSH: Glutathione, GPx: Glutathione peroxidase, GST: Glutathione S-transferases. PMID- 29333042 TI - Gas Chromatography Mass Spectrometry Profiling in Methanolic and Ethyl-acetate Root and Stem Extract of Corbichonia decumbens (Forssk.) Exell from Thar Desert of Rajasthan, India. AB - Background: Corbichonia decumbens (Forssk.) Exell (Molluginaceae), recently has moved to Lophiocarpaceae as per angiospermic plant group (APG) III system, is an annual or short-lived, dwarf, glabrous subshrub, prefers to grow on rocky places and on sand-stones in dry, hot areas of Rajasthan. This is the potential plant with medicinal properties. Vegetative organs under study show antioxidant, anti inflammatory, antiulcer, antimicrobial, and antinociception activity. Objective: This study was carried out to identify the phytoconstituents present in the methanolic and ethyl-acetate extract of root and stem of C. decumbens by GC-MS analysis. Materials and Methods: Powdered test samples were sequentially extracted with methanol and ethyl-acetate. The compounds obtained as a result of GC-MS screening were identified on the basis of their retention time, peak area and compared with that of literature available and by interpretation of mass spectra. Results: GC-MS analysis of a methanolic extract of root detected mome inositol (49.53%), guanosine (20.91%), and cis-vaccenic acid (9.25%). While ethyl acetate extract of root analyzed pentadecanoic acid (17.91%), octadecanoic acid (15.01%) and cis-vaccenic acid (12.04%). Methanolic extract of stem detected mome inositol (75.47%), pentadecanoic acid (6.04%), and 7-tetradecenal, (Z) (4.54%) while ethyl-acetate extract of stem revealed the presence of 1-heptacosanol (17.35%), hexadecanoic acid (17.17%), and octadecanal (12.64%). Conclusion: The results suggest that C. decumbens (Forssk.) Exell is a plant of potential medicinal value, yielding various bioactive compounds that confirm the application of this plant as a plant-based drug in pharmacy-industry. SUMMARY: Extraction is the most important step in the analysis of bioactive compounds present in botanical preparations. The strength of solvent plays a key role in this process, methanol as well as ethyl-acetate showed better response as far as extraction potency is concerned. Gas chromatography mass spectrometry analysis is highly reliable, and the interpretations of the results are of high-quality. This tool is in particular useful for confirming of the presence of bioactive substances. The results suggest that Corbichonia decumbens (Forssk.) Exell can be used for drug formulations against some major disorders, i.e., cancer, ulcer, tuberculosis, arthritis, etc.Abbreviations Used: GC-MS: Gas Chromatography-Mass Spectrometry, kPa: Kilopascal, RT: Retention time, MF: Molecular formula, MW: Molecular weight. PMID- 29333044 TI - Antiplasmodial Activity of Isolated Polyphenols from Alectryon serratus Leaves Against 3D7 Plasmodium falciparum. AB - Background: Alectryon serratus was selected from a screening program devoted to search naturally occurring antimalarial compound from plants in Alas Purwo National Park, Banyuwangi, East Java, Indonesia. The previous studies showed that ethanol extract of A. serratus leaves contains some polyphenol compounds. Objective: This study was designed to isolate and investigate antiplasmodial activity of polyphenol compounds. Material and Methods: The ethanol extract of A. serratus leaves was fractioned using liquid-liquid fractionation and column chromatography. Isolated compounds were identified using High-performance liquid chromatography, ultraviolet-visible, nuclear magnetic resonance, and compared with references. The isolates were tested in vitro for antiplasmodial activity against chloroquine-sensitive 3D7 strain of Plasmodium falciparum. Thin blood smears were used to assess the levels of parasitemia and growth inhibition of the isolates. Result: Half maximal Inhibitory concentration of Gallic acid (1), methyl gallate (2), and kempferol-3-O-rhamnoside (3) were 0.0722 MUM, 0.0128 MUM, and 3.4595 MUM, respectively. Conclusion: The results suggest that gallic acid, methyl gallate, and kempferol-3-O-rhamnoside isolated from A. serratus leaves have antiplasmodial activity and are potential to be developed as antimalarial drugs. SUMMARY: The ethanol extract of Alectryon serratus leaves was successively fractionated in CH2Cl2, EtOAc, and n-butanol. EtOAc fraction was fractionated using column chromatography and purified using preparative thin-layer chromatography (TLC). Isolates were studied for their antiplasmodial activity on parasites culture of chloroquine-sensitive 3D7 strain of Plasmodium falciparum. Parasitemia percentages, growth percentages, and inhibition percentages of each group were calculated. The half maximal inhibitory concentration (IC50) values that represent the concentration required to inhibit 50% of Plasmodium growth were calculated from a calibration curve using linear regression. The results suggest that isolates have antiplasmodial activity and are responsible in the antimalarial activity of Alectryon serratus leaves. Abbreviations Used: S.F: Subfraction, EGCG: Epigallocatechingallate, EGC: Epigallocatechin. PMID- 29333043 TI - Picroside I and Picroside II from Tissue Cultures of Picrorhiza kurroa. AB - Background: Picrorhiza kurroa (PK) belongs to Scrophulariaceae family and is a representative endemic, medicinal herb, widely distributed throughout the higher altitudes of alpine Himalayas from west to east, between 3000 and 4500 m above mean sea level. Objective: The objective of the present study is to assess the production of picroside I and picroside II from tissue cultures of PK. Materials and Methods: Auxiliary shoot tips of PK were incubated in Murashige and Skoog medium supplemented with indole-3-butyric acid and kinetin phytohormones. The callus produced was collected at different time intervals and was processed for extraction of picroside I and picroside II followed by thin layer chromatography and high-performance liquid chromatography HPLC analysis. Results: The maximum growth index was found to be 5.109 +/- 0.159 at 16-week-old callus culture. The estimation of picroside-I and picroside-II was carried out by (HPLC) analysis; quantity of secondary metabolite found to be 16.37 +/- 0.0007 mg/g for PK-I and 6.34 +/- 0.0012 mg/g for PK-II. Conclusion: This is the first attempt to produce the Picroside-I and II in large amount by the tissue culture technique. It can be observed that the method of callus culture can be used in production of secondary metabolites Picroside-I and II from PK. SUMMARY: Picrorhiza kurroa is a high value medicinal herb due to rich source of hepatoprotective metabolites, Picroside-I and Picroside-II. The medicinal importance of P. kurroa is due to its pharmacological properties like hepatoprotective, antioxidant (particularly in liver), antiallergic and antiasthamatic, anticancer activity particularly in liver and immunomodulatory. Shoot apices which were produced a good response was inoculated on selected medium i.e., on MS medium containing 2, 4 D (mg/l) + KN (1mg/l) for induction of callus. The initiation of callus was observed after 4weeks and it was light green and fragile Maximum growth was observed with 3% w/v of sucrose supplement. The callus culture was maintained and growth index was recorded after every subculture. The growth index was calculated from the obtained final dried weight divided by initial weight.Abbreviations Used: PK Picrorhizakurroa, IBA-Indole-3-butyricacid, KN-Kinetin, 2,4D-2,4Dichlorophenoxy acetic acid. PMID- 29333045 TI - In vitro Antiproliferative Effect of Earthworm Coelomic Fluid of Eudrilus Eugeniae, Eisenia Foetida, and Perionyx Excavatus on Squamous Cell Carcinoma-9 Cell Line: A Pilot Study. AB - Introduction: The earthworm coelomic fluid (ECF) has shown proven antiproliferative effect against breast, liver, gastrointestinal, and brain cancer, but it is least explored in oral cancer. The present in vitro study is an attempt to investigate the antiproliferative activity of ECF on oral cancer cell line squamous cell carcinoma (SCC)-9. Materials and Methods: ECF was collected from the species Eudrilus eugeniae (EE), Eisenia foetida (EF), and Perionyx excavatus (PE) stored at -80 degrees C. Percentage inhibition of ECF on squamous cell carcinoma-9 cells in vitro was recorded at 24 h. Protein estimation was done using Bradford protein assay validated by the biuret method. Cytotoxicity was tested at 2.5, 5, 10, 20, 40, and 80 MUg/ml concentrations by 3-(4,5 dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay in SCC-9 cells in vitro. GraphPad Prism 7.0 software was used to calculate the inhibitory concentration (IC50). Chi-square test was used to analyze the difference between samples. Results: The test samples EE, EF, and PE inhibited the growth of SCC-9 cells significantly in a dose-dependent manner, and the IC50 values were found to be 4.6, 44.69, and 5.27 MUg/ml, respectively. The antiproliferative effect was found to be variable among the three earthworm species with EE showing the most promising effect followed by PE and EF. Conclusion: Establishing the antiproliferative effect of ECF on oral cancer cells could be an initial step toward drug development and future anticancer research. The preliminary investigation has shown that ECF has a promising antiproliferative effect on oral cancer cells in vitro. SUMMARY: The present pilot study evaluated the in vitro antiproliferative effect of earthworm coelomic fluid (ECF) of Eudrilus eugeniae (EE), Eisenia foetida (EF), and Perionyx excavatus (PE) on squamous cell carcinoma-9 cell line. The ECF inhibitory activity was promising at inhibitory concentration values of 4.6, 44.69, and 5.27 MUg/ml, respectively. Further studies pertaining to antiproliferative mechanism of EE, EF, and PE have been planned.Abbreviations Used: ECF: Earthworm coelomic fluid, EE: Eudrilus eugeniae, EF: Eisenia foetida, PE: Perionyx excavatus, MTT: 3-(4,5-dimethylthiazol-2-yl) 2,5-diphenyltetrazolium bromide, SCC: Squamous cell carcinoma, BSA: Bovine serum albumin, PBS: Phosphored buffered saline, ATCC: American Type Culture Collection. PMID- 29333046 TI - Development and validation of High-performance Thin-layer Chromatography Method for Simultaneous Determination of Polyphenolic Compounds in Medicinal Plants. AB - Context: Quantitative standardization of plant-based products is challenging albeit essential to maintain their quality. Aims: This study aims to develop and validate high-performance thin-layer chromatography (HPTLC) method for the simultaneous determination of rutin (Ru), quercetin (Qu), and gallic acid (Ga) from Psidium guajava Linn. (PG) and Aegle marmelos (L.) Correa. (AM) and correlate with antioxidant activity. Materials and Methods: The stock solution (1 mg/mL) of standard Ru, Qu, and Ga in methanol: Water (1:1) was serially diluted and spotted (5 MUL) on slica gel 60 F254 thin-layer chromatography plates. Toluene: Ethyl acetate: Formic acid: Methanol (3:4:0.8:0.7, v/v/v) was selected as mobile phase for analysis at 254 nm. Hydroalcoholic (1:1) extracts of leaves of PG and AM were fractionated and similarly analyzed. Antioxidant activity was also determined using 2, 2-diphenyl-1-picrylhydrazyl assay. Results: The developed method was robust and resolved Ru, Qu, and Ga at Rf 0.08 +/- 0.02, 0.76 +/- 0.01, and 0.63 +/- 0.02, respectively. The intra-day, interday precision, and interanalyst were <2% relative standard deviation. The limit of detection and limit of quantification for Ru, Qu, and Ga were 4.51, 4.2, 5.27, and 13.67, 12.73, 15.98 ng/spot, respectively. Antioxidant activity (Log 50% inhibition) of PG and AM was 4.947 +/- 0.322 and 6.498 +/- 0.295, respectively. Conclusion: The developed HPTLC method was rapid, accurate, precise, reproducible, and specific for the simultaneous estimation of Ru, Qu, and Ga. SUMMARY: HPTLC method for simultaneous determination and quantification of Rutin, Quercetin and Gallic acid, is reported for quality control of herbal drugs.Abbreviations Used: A: Aqueous fraction; AM: Aegle marmelos L. Correa; B: Butanol fraction; C: Chloroform fraction; EA: Ethyl acetate fraction; Ga: Gallic acid; H: Hexane fraction; HA: Hydroalcoholic extract; HPTLC: High-performance thin-layer chromatography; PG: Psidium guajava; Qu: Quercetin; Ru: Rutin. PMID- 29333047 TI - Assessment of Nutritional Quality and Global Antioxidant Response of Banana (Musa sp. CV. Nanjangud Rasa Bale) Pseudostem and Flower. AB - Background: The assessment of the nutritional composition and phytochemical screening of banana pseudostem (PB) and flower (FB) advocate this nonconventional food source for routine consumption, considering its various health benefits. Objectives: The aim is to assess the proximate nutrient composition, fatty acids, minerals, amino acid profile, and global antioxidant response (GAR) of PB and FB. Methods: Standard analytical procedures were used to determine the nutritional quality and GAR of PB and FB. Results: The chemical analysis illustrated that functional profile (water holding capacity, oil holding capacity, swelling power, and solubility), and proximate (ash, moisture, protein, fat, dietary fiber, and carbohydrate) contents were substantially high in FB than PB. With a well proportionate amino acid profile, PB (0.56) and FB (0.54) comprised of a high ratio of essential to nonessential amino acids than those of FAO/WHO requirement (0.38). The mineral analysis revealed that PB and FB were rich in macro and micro minerals in the order K > Ca > Mg > P > Na and K > Mg > Na > Ca > P, respectively. Linoleic acid was found to be the major component in PB and FB. Besides, total antioxidant activity conducted for PB and FB by GAR method, measuring both bio-accessible and insoluble fractions, revealed that the soluble fraction fared better than the chemical extracts. Conclusion: The results revealed high nutritional qualities of the byproducts of banana and the low cost of its production promotes their use as a prospective nonconventional food resource with high nutraceutical value. SUMMARY: AOAC: Association of Analytical CommunitiesFAO/WHO: Food and Agriculture Organization of the United Nations/World health organization Abbreviations Used: Banana flower was more potent than banana pseudostem in terms of its nutritional quality and total antioxidant capacity affirming their usefulness (of both the secondary products) in the pharmaceutical sector as a nutritional supplement due to the health-related properties of dietary fibre and associated bioactive compounds. PMID- 29333048 TI - Astaxanthin Ameliorates Hepatic Damage and Oxidative Stress in Carbon Tetrachloride-administered Rats. AB - Background: Astaxanthin is of carotenoids group which possess strong antioxidant properties. The present study was conducted to evaluate the hepatoprotective effects of astaxanthin in carbon tetrachloride (CCl4)-treated rats. Materials and Methods: Female Long-Evans rats were administered with CCl4 orally (1 ml/kg) twice a week for 2 weeks and were treated with astaxanthin (10 mg/kg) every day for 2 weeks. Blood plasma samples were isolated from each group and were analyzed for alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase activities. Oxidative stress parameters such as malondialdehyde (MDA), nitric oxide (NO), and advanced protein oxidation product (APOP) were measured. Several enzyme functions such as myeloperoxidase (MPO), superoxide dismutase (SOD), and catalase (CAT) activities in the plasma and liver tissues were also analyzed. Moreover, inflammation and tissue fibrosis were also confirmed by histological staining of liver tissues. Results: This investigation revealed that CCl4 administration in rats increased plasma AST, ALT, and ALP activities which were normalized by astaxanthin treatment. Moreover, CCl4 administration increased as MDA, NO, and APOP level both in plasma and tissues compared to control rats. Astaxanthin also exhibited a significant reduction of those parameters in CCl4-administered rats. Astaxanthin treatment also restored the CAT and SOD activities and lowered MPO activity in CCl4-administered rats. Histological assessment also revealed that the astaxanthin prevented the inflammatory cells infiltration, decreased free iron deposition, and fibrosis in liver of CCl4-administered rats. Conclusion: These results suggest that astaxanthin protects liver damage induced by CCl4 by inhibiting lipid peroxidation and stimulating the cellular antioxidant system. SUMMARY: Carbon tetrachloride (CCl4) administration increased oxidative stress-mediated hepatic damage and inflammation in ratsAstaxanthin, a potent antioxidant, prevents oxidative stress and inflammatory cells infiltration in CCl4-administered ratsAstaxanthin also ameliorated the progression of hepatic fibrosis in CCl4 administered rats. Abbreviations Used: APOP: Advanced protein oxidation product; AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; ALP: Alkaline phosphatase; CAT: Catalase; CCl4: Carbon tetrachloride; CVD: Cardiovascular disease; HSCs: Hepatic stellate cells; H2O2: Hydrogen peroxide; MDA: Malondialdehyde; MMP2: Matrix metalloproteinase2; MPO: Myeloperoxidase; NF kappaB: Nuclear factor kappa B; NO: Nitric oxide; Nrf2: Nuclear factor erythroid 2-related factor 2; .ONOO-: Peroxynitrate; ROS: Reactive oxygen species; SOD: superoxide dismutase; TCA: Trichloroacetic acid; TBA: Thiobarbituric acid; TGF-1: Transforming growth factor 1, TGF-beta: Transforming growth factor-beta; TIMP1: Tissue inhibitor of metalloproteinase 1; TNF-alpha: Tumor necrosis factor alpha;.CCl3: Trichloromethyl free radical; CCl3O2-: Trichloroperoxyl radical. PMID- 29333050 TI - Improvement of Insulin Secretion and Pancreatic beta-cell Function in Streptozotocin-induced Diabetic Rats Treated with Aloe vera Extract. AB - Background: Diabetes mellitus is a metabolic disorder characterized by chronic hyperglycemia. Plant extracts and their products are being used as an alternative system of medicine for the treatment of diabetes. Aloe vera has been traditionally used to treat several diseases and it exhibits antioxidant, anti inflammatory, and wound-healing effects. Streptozotocin (STZ)-induced Wistar diabetic rats were used in this study to understand the potential protective effect of A. vera extract on the pancreatic islets. Objective: The aim of the present study was to evaluate the A. vera extract on improvement of insulin secretion and pancreatic beta-cell function by morphometric analysis of pancreatic islets in STZ-induced diabetic Wistar rats. Materials and Methods: After acclimatization, male Wistar rats, maintained as per the Committee for the Purpose of Control and Supervision of Experiments on Animals guidelines, were randomly divided into four groups of six rats each. Fasting plasma glucose and insulin levels were assessed. The effect of A. vera extract in STZ-induced diabetic rats on the pancreatic islets by morphometric analysis was evaluated. Results: Oral administration of A. vera extract (300 mg/kg) daily to diabetic rats for 3 weeks showed restoration of blood glucose levels to normal levels with a concomitant increase in insulin levels upon feeding with A. vera extract in STZ induced diabetic rats. Morphometric analysis of pancreatic sections revealed quantitative and qualitative gain in terms of number, diameter, volume, and area of the pancreatic islets of diabetic rats treated with A. vera extract when compared to the untreated diabetic rats. Conclusion: A. vera extract exerts antidiabetic effects by improving insulin secretion and pancreatic beta-cell function by restoring pancreatic islet mass in STZ-induced diabetic Wistar rats. SUMMARY: Fasting plasma glucose (FPG) and insulin levels were restored to normal levels in diabetic rats treated with Aloe vera extractIslets of pancreas were qualitatively and quantitatively restored to normalcy leading to restoration of FPG and insulin levels of diabetic rats treated with Aloe vera extractMorphometric analysis of pancreatic sections revealed quantitative and qualitative gain in terms of number, diameter, volume, and area of the pancreatic islets of diabetic rats treated with Aloe vera extract when compared to the untreated diabetic rats. Abbreviations Used:A. vera, FPG: Fasting plasma glucose, STZ: Streptozotocin, BW: Body weight. PMID- 29333049 TI - Marine-derived Fungi Extracts Enhance the Cytotoxic Activity of Doxorubicin in Nonsmall Cell Lung Cancer Cells A459. AB - Background: Drug resistance is a major concern in the current chemotherapeutic approaches and the combination with natural compounds may enhance the cytotoxic effects of the anticancer drugs. Therefore, this study evaluated the cytotoxicity of crude ethyl extracts of six marine-derived fungi - Neosartorya tsunodae KUFC 9213 (E1), Neosartorya laciniosa KUFC 7896 (E2), Neosartorya fischeri KUFC 6344 (E3), Aspergillus similanensis KUFA 0013 (E4), Neosartorya paulistensis KUFC 7894 (E5), and Talaromyces trachyspermum KUFC 0021 (E6) - when combined with doxorubicin (Dox), in seven human cancer cell lines. Materials and Methods: The antiproliferative activity was primarily assessed by the 3-(4,5-dimethylthiazol-2 yl)-2,5-diphenyltetrazolium bromide assay. Results: Two extracts, E1 and E2, demonstrated a significant enhancement of Dox's cytotoxicity in nonsmall cell lung cancer A549 cells. Accumulation of Dox in the nuclei increased when A549 cells were treated in combination with extracts E1 and E2, with induction of cell death observed by the nuclear condensation assay. The combination of E2 with Dox increased the DNA damage as detected by the comet assay. Ultrastructural observations by transmission electron microscopy suggest an autophagic cell death due to an increase of autophagic vesicles, namely with the combination of Dox with E1 and E2. Conclusion: These findings led to the conclusion that the fungal extracts E1 and E2 potentiate the anticancer action of Dox, through nuclear accumulation of Dox with induction of cell death mainly by cytotoxic autophagy. SUMMARY: Fungal extracts increase the cytotoxic activity of doxorubicin (Dox) in lung cancer cellsNuclear accumulation of Dox, DNA damage, and cell death as a mechanism of actionFungal extracts may potentiate the anticancer activity of conventional drugs.Abbreviations Used: A375: Human malignant melanoma cell line, A549: Human non small lung cancer cell line, DAPI: 4,6-Diamidino-2-phenylindole, DMEM: Dulbecco's Modified Eagle Medium, DMSO: Dimethylsulfoxide, Dox: Doxorubicin, DSBs: DNA double-strand breaks, E1: Neosartorya tsunodae KUFC 9213, E2: Neosartorya laciniosa KUFC 7896, E3: Neosartorya fischeri KUFC 6344, E4: Aspergillus similanensis KUFA 0013, E5: Neosartorya paulistensis KUFC 7894, E6: Talaromyces trachyspermum KUFC 0021, FBS: Fetal bovine serum, HCT116: Human colorectal carcinoma cell line, HEPES: (N-[2-hydroxyethyl] piperazine-N'- [2 ethane-sulfonic acid]), HepG2: Human hepatocellular carcinoma cell line, HT29: Human Caucasian colon adenocarcinoma Grade II cell line, IC50: Concentration of the extract or Dox that inhibits cell viability by 50%, LRP: Lung resistance related protein, MCF7: Human breast adenocarcinoma cell line, MEM: Minimum Essential Medium Eagle, MRPs: Multidrug resistance-associated proteins, MTT: 3 (4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, PBS: Phosphate buffered saline, NSCLC: Nonsmall cell lung cancer, P-gp: P-glycoprotein, ROS: Reactive oxygen species, RPMI: Roswell Park Memorial Institute Medium, TEM: Transmission electron microscopy, U251: Human glioblastoma astrocytoma cell line. PMID- 29333051 TI - Therapeutic Significance of Loligo vulgaris (Lamarck, 1798) ink Extract: A Biomedical Approach. AB - Background: The squid ink extract is well known for its biomedical properties. Objective: In this study, squid Loligo vulgaris was collected from Tuticorin costal water, Bay of Bengal, India. Materials and Methods: Proximate composition of the crude squid ink was studied and found to have protein as the major component over lipid and carbohydrates. Further, bioactive fractions of squid ink were extracted with ethanol, and therapeutic applications such as hemolytic, antioxidant, antimicrobial, and in vitro anti-inflammatory properties were analyzed using standard methods. Results: In hemolytic assay, the squid ink extract exhibited a maximum hemolytic activity of 128 hemolytic unit against tested erythrocytes. In DPPH assay, the ethanolic extract of squid ink has exhibited an antioxidant activity of 83.5%. The squid ink was found to be potent antibacterial agent against the pathogens tested. 200 MUL of L. vulgaris ink extract showed remarkable antibacterial activity as zone of inhibition against Escherichia coli (28 mm), Klebsiella pneumoniae (22 mm), Pseudomonas aeruginosa (21 mm), and Staphylococcus aureus (24 mm). The 68.9% inhibition of protein denaturation by the squid ink extract indicated that it has very good in vitro anti-inflammatory properties. The Fourier transform infrared spectroscopy analysis of the ethanolic extracts of the squid ink indicated the presence of functional groups such as 1 degrees and 2 degrees amines, amides, alkynes (terminal), alkenes, aldehydes, nitriles, alkanes, aliphatic amines, carboxylic acids, and alkyl halides, which complements the biochemical background of therapeutic applications. Conclusion: Hence, results of this study concluded that the ethanolic extract of L. vulgaris has many therapeutic applications such as antimicrobial, antioxidant, and anti-inflammatory activities. SUMMARY: Squid ink is very high in a number of important nutrients. It's particularly high in antioxidants for instance, which as well all know help to protect the cells and the heart against damage from free radicals. In the present study, the squid ink have antioxidant, anti-inflammatory and cytotoxic properties and can be considered as promising the developing the drugs. Abbreviations Used: DPPH: 2,2 diphenyl-1-picrylhydrazyl, FTIR: Fourier-transform infrared spectroscopy, BSA: Bovine Serum Albumin. PMID- 29333052 TI - A calcium rise occurs as activating Drosophila eggs move through the female reproductive tract. PMID- 29333053 TI - An Emic, Mixed Methods Approach to Defining and Measuring Positive Parenting Among Low-Income, Black Families. AB - Research Findings: This within-group exploratory sequential mixed methods investigation sought to identify how ethnically diverse, urban-residing, low income Black families conceptualize positive parenting. During the item development phase 119 primary caregivers from Head Start programs participated in focus groups and interviews. These qualitative data were content analyzed using a three-stage iterative process that resulted in the development of a final set of 72 items for a paper-and-pencil measure. In the measure validation phase of the study initial construct validity of the 72-item measure was assessed with an independent sample of 665 respondents. Common factor analyses revealed five dimensions of positive parenting on the Black Parenting Strengths in Context (BPSC) scale that related in expected ways with other parent self-report measures. Practice and Policy: BPSC dimensions provide initial support for a more nuanced operationalization of positive parenting than currently exists in any single scale for use with this group, and hold promise for better honoring the culture- and context-specific parenting goals and practices that low-income, Black parents subjectively view as important for producing healthy developmental outcomes for their children. PMID- 29333054 TI - On Fitting a Multivariate Two-Part Latent Growth Model. AB - A 2-part latent growth model can be used to analyze semicontinuous data to simultaneously study change in the probability that an individual engages in a behavior, and if engaged, change in the behavior. This article uses a Monte Carlo (MC) integration algorithm to study the interrelationships between the growth factors of 2 variables measured longitudinally where each variable can follow a 2 part latent growth model. A SAS macro implementing Mplus is developed to estimate the model to take into account the sampling uncertainty of this simulation-based computational approach. A sample of time-use data is used to show how maximum likelihood estimates can be obtained using a rectangular numerical integration method and an MC integration method. PMID- 29333055 TI - Corporal Punishment in U.S. Public Schools: Prevalence, Disparities in Use, and Status in State and Federal Policy. AB - School corporal punishment is currently legal in 19 states, and over 160,000 children in these states are subject to corporal punishment in schools each year. Given that the use of school corporal punishment is heavily concentrated in Southern states, and that the federal government has not included corporal punishment in its recent initiatives about improving school discipline, public knowledge of this issue is limited. The aim of this policy report is to fill the gap in knowledge about school corporal punishment by describing the prevalence and geographic dispersion of corporal punishment in U.S. public schools and by assessing the extent to which schools disproportionately apply corporal punishment to children who are Black, to boys, and to children with disabilities. This policy report is the first-ever effort to describe the prevalence of and disparities in the use of school corporal punishment at the school and school district levels. We end the report by summarizing sources of concern about school corporal punishment, reviewing state policies related to school corporal punishment, and discussing the future of school corporal punishment in state and federal policy. PMID- 29333056 TI - Individual Differences in Phonological Feedback Effects: Evidence for the Orthographic Recoding Hypothesis of Orthographic Learning. AB - Share (1995) has proposed phonological recoding (the translation of letters into sounds) as a self-teaching mechanism through which readers establish complete lexical representations. More recently, McKague et al. (2008) proposed a similar role for orthographic recoding, i.e., feedback from sounds to letters, in building and refining lexical representations. We reasoned that an interaction between feedback consistency measures and spelling ability in a spelling decision experiment would lend support to this hypothesis. In a linear mixed effects logistic regression of accuracy data this interaction was significant. Better spellers but not poorer spellers were immune to feedback effects in deciding if a word is spelled correctly, which is consistent with McKague et al.'s prediction that the impact of phonological feedback on word recognition will diminish when the orthographic representation for an item is fully specified. The study demonstrates the importance of considering individual differences when investigating the role of phonology in reading. PMID- 29333057 TI - Family counts: deciding when to murder among the Icelandic Vikings. AB - In small scale societies, lethal attacks on another individual usually invite revenge by the victim's family. We might expect those who perpetrate such attacks to do so only when their own support network (mainly family) is larger than that of the potential victim so as to minimise the risk of retaliation. Using data from Icelandic family sagas, we show that this prediction holds whether we consider biological kin or affinal kin (in-laws): on average, killers had twice as many relatives as their victims. These findings reinforce the importance of kin as a source of implicit protection even when they are not physically present. The results also support Hughes' (1988) claim that affines are biological kin because of the shared genetic interests they have in the offspring generation. PMID- 29333058 TI - Acquisition of a socially learned tool use sequence in chimpanzees: Implications for cumulative culture. AB - Cumulative culture underpins humanity's enormous success as a species. Claims that other animals are incapable of cultural ratcheting are prevalent, but are founded on just a handful of empirical studies. Whether cumulative culture is unique to humans thus remains a controversial and understudied question that has far-reaching implications for our understanding of the evolution of this phenomenon. We investigated whether one of human's two closest living primate relatives, chimpanzees, are capable of a degree of cultural ratcheting by exposing captive populations to a novel juice extraction task. We found that groups (N = 3) seeded with a model trained to perform a tool modification that built upon simpler, unmodified tool use developed the seeded tool method that allowed greater juice returns than achieved by groups not exposed to a trained model (non-seeded controls; N = 3). One non-seeded group also discovered the behavioral sequence, either by coupling asocial and social learning or by repeated invention. This behavioral sequence was found to be beyond what an additional control sample of chimpanzees (N = 1 group) could discover for themselves without a competent model and lacking experience with simpler, unmodified tool behaviors. Five chimpanzees tested individually with no social information, but with experience of simple unmodified tool use, invented part, but not all, of the behavioral sequence. Our findings indicate that (i) social learning facilitated the propagation of the model-demonstrated tool modification technique, (ii) experience with simple tool behaviors may facilitate individual discovery of more complex tool manipulations, and (iii) a subset of individuals were capable of learning relatively complex behaviors either by learning asocially and socially or by repeated invention over time. That chimpanzees learn increasingly complex behaviors through social and asocial learning suggests that humans' extraordinary ability to do so was built on such prior foundations. PMID- 29333060 TI - Optimising human community sizes. AB - We examine community longevity as a function of group size in three historical, small scale agricultural samples. Community sizes of 50, 150 and 500 are disproportionately more common than other sizes; they also have greater longevity. These values mirror the natural layerings in hunter-gatherer societies and contemporary personal networks. In addition, a religious ideology seems to play an important role in allowing larger communities to maintain greater cohesion for longer than a strictly secular ideology does. The differences in optimal community size may reflect the demands of different ecologies, economies and social contexts, but, as yet, we have no explanation as to why these numbers seem to function socially so much more effectively than other values. PMID- 29333059 TI - Innate food aversions and culturally transmitted food taboos in pregnant women in rural southwest India: separate systems to protect the fetus? AB - Pregnancy increases women's nutritional requirements, yet causes aversions to nutritious foods. Most societies further restrict pregnant women's diet with food taboos. Pregnancy food aversions are theorized to protect mothers and fetuses from teratogens and pathogens or increase dietary diversity in response to resource scarcity. Tests of these hypotheses have had mixed results, perhaps because many studies are in Westernized populations with reliable access to food and low exposure to pathogens. If pregnancy food aversions are adaptations, however, then they likely evolved in environments with uncertain access to food and high exposure to pathogens. Pregnancy food taboos, on the other hand, have been theorized to limit resource consumption, mark social identity, or also protect mothers and fetuses from dangerous foods. There have been few tests of evolutionary theories of culturally transmitted food taboos. We investigated these and other theories of psychophysiological food aversions and culturally transmitted food taboos among two non-Western populations of pregnant women in Mysore, India, that vary in food insecurity and exposure to infectious disease. The first was a mixed caste rural farming population (N = 72), and the second was the Jenu Kurubas, a resettled population of former hunter-gatherers (N = 30). Women rated their aversions to photos of 31 foods and completed structured interviews that assessed aversions and socially learned avoidances of foods, pathogen exposure, food insecurity, sources of culturally acquired dietary advice, and basic sociodemographic information. Aversions to spicy foods were associated with early trimester and nausea and vomiting, supporting a protective role against plant teratogens. Variation in exposure to pathogens did not explain variation in meat aversions or avoidances, however, raising some doubts about the importance of pathogen avoidance. Aversions to staple foods were common, but were not associated with resource stress, providing mixed support for the role of dietary diversification. Avoided foods outnumbered aversive foods, were believed to be abortifacients or otherwise harmful to the fetus, influenced diet throughout pregnancy, and were largely distinct from aversive foods. These results suggest that aversions target foods with cues of toxicity early in pregnancy, and taboos target suspected abortifacients throughout pregnancy. PMID- 29333061 TI - Critical appraisal of Rome IV criteria: hypersensitive esophagus does belong to gastroesophageal reflux disease spectrum. AB - The Rome IV Committee introduced a major change in the classification of functional gastrointestinal disorders, proposing a more restrictive definition of gastroesophageal reflux disease (GERD). It was suggested that hypersensitive esophagus (HE) may sit more firmly within the functional realm. It was suggested that GERD diagnosis should be based upon abnormal acid exposure time (AET) only, implying no advantage of impedance-pH over pH monitoring. Symptom association probability (SAP), symptom index (SI) and heartburn relief with proton pump inhibitor (PPI) therapy were regarded as unreliable, whereas a lack of response to PPI was considered as evidence of functional heartburn. These assumptions are contradicted by numerous studies showing the clinical relevance of weakly acidic refluxes and the diagnostic utility of SAP, SI and new impedance parameters, namely the post-reflux swallow-induced peristaltic wave (PSPW) index and the mean nocturnal baseline impedance (MNBI). The PSPW index and MNBI provide significant diagnostic advantage, particularly in patients with normal AET who can be classified as HE when both parameters are abnormal, even though SAP and SI are negative. Visceral pain modulators are recommended by the Rome IV Committee despite scanty evidence of efficacy, but a positive outcome with medical or surgical anti-reflux treatment has been reported by several studies of HE patients. Therefore, we believe that patients with endoscopy-negative heartburn should be investigated by means of impedance-pH monitoring with analysis of PSPW index and MNBI: such an approach provides accurate identification of HE cases, who remain, in our opinion, within the realm of GERD and should be treated accordingly. PMID- 29333062 TI - Helicobacter pylori infection and esophageal adenocarcinoma: a review and a personal view. AB - Esophageal adenocarcinoma (EAC) is etiologically associated with gastroesophageal reflux disease (GERD). There is evidence to support the sequence GERD, Barrett's esophagus (BE), dysplasia, and finally EAC, with Helicobacter pylori (H. pylori) being implicated in each step to EAC. On the other side of this relation stands the hypothesis of the protective role of H. pylori against EAC. Based on this controversy, our aim was to review the literature, specifically original clinical studies and meta-analyses linking H. pylori infection with EAC, but also to provide our personal and others' relative views on this topic. From a total of 827 articles retrieved, 10 original clinical studies and 6 meta-analyses met the inclusion criteria. Original studies provided inconclusive data on an inverse or a neutral association between H. pylori infection and EAC, whereas meta-analyses of observational studies favor an inverse association. Despite these data, we consider that the positive association between H. pylori infection and GERD or BE, but not EAC, is seemingly a paradox. Likewise, the oncogenic effect of H. pylori infection on gastric and colon cancer, but not on EAC, also seems to be a paradox. In this regard, well-designed prospective cohort studies with a powered sample size are required, in which potential confounders should be taken into consideration since their design. PMID- 29333063 TI - Familial and ethnic risk in inflammatory bowel disease. AB - Familial aggregation in inflammatory bowel disease (IBD) has been established for several decades, reflecting shared genetic and environmental susceptibility. A positive family history remains the strongest recognizable risk factor for the development of IBD and is reported in around 8-12% of IBD patients. Crohn's disease shows a more frequent familial pattern than ulcerative colitis. The risk of developing IBD in first-degree relatives of an affected proband is increased 4 to 8-fold. The risk for twins and children born from couples who both have IBD is also substantially higher; a cumulative effect of the number of family members affected has been described, with the highest incidence being described for families with three or more affected members. Herein, we review the available evidence regarding familial IBD, and briefly discuss the variation of IBD across different races and ethnicities, hoping to provide a useful update and a practical guide that can serve clinicians as a guide for counseling. PMID- 29333064 TI - Colorectal polyposis and inherited colorectal cancer syndromes. AB - The majority of colorectal cancer (CRC) cases are sporadic, with hereditary factors contributing to approximately 35% of CRC cases. Less than 5% of CRC is associated with a known genetic syndrome. Although adenomatous polyposis syndromes, hamartomatous polyposis syndromes, and those previously classified as non-polyposis CRC syndromes are quite rare, it is important for clinicians to know the characteristics of each syndrome and to understand the differences in cancer risks between the different conditions. This information is very important when treatment and surveillance plans are formulated for each individual patient. PMID- 29333065 TI - Hepatitis C infection in patients with hereditary bleeding disorders: epidemiology, natural history, and management. AB - Hereditary bleeding disorders include a group of diseases with abnormalities of coagulation. Prior to 1990, infection with hepatitis C virus (HCV) was mainly transmitted via pooled plasma products as a treatment for hereditary bleeding disorders. Anti-HCV positivity in these patients may be as high as >70% in some areas, while some of them have also been coinfected with human immunodeficiency virus. Since about 20% of HCV-infected patients clear the infection naturally, chronic HCV infection represents a significant health problem in this group of patients. Mortality due to chronic HCV infection is estimated to be >10 times higher in patients with hemophilia than in the general population, and is mainly due to liver cirrhosis and hepatocellular carcinoma. The antiviral treatment of HCV in patients with hereditary bleeding disorders is not different from that of any other infected patients. Nevertheless, many patients with hereditary bleeding disorders have declined (Peg)interferon-based treatment because of side effects. In recent years, multiple orally administrated direct-acting antivirals (DAAs) have been approved for HCV treatment. Unfortunately, there is not much experience from treating these patients with DAA regimens, as major studies and real-life data did not include adequate numbers of patients with inherited hemorrhagic disorders. However, the available data indicate that DAAs have an excellent safety profile with a sustained virological response rate of >90%. PMID- 29333067 TI - Complications of staple line and anastomoses following laparoscopic bariatric surgery. AB - With over 600 million people being obese, and given the scientific demonstration of the advantages of surgical treatment, bariatric surgery is on the rise. The promising long-term results in terms of weight loss, and particularly in relation to comorbidities and the control/cure rate, mean that the number of procedures performed in all countries remains high. However, the risk of potentially complex or fatal complications, though small, is present and is related to the procedures per se. This review is a guide for bariatric and/or general surgeons, offering a complete overview of the pathogenesis of anastomosis and staple line following the most common laparoscopic bariatric procedures: sleeve gastrectomy, gastric bypass, and mini-gastric bypass. The review is divided according to the procedure and the complications (leak, bleeding and stenosis), and evaluates all the factors that can potentially improve or worsen the complication rate, representing a "unicum" in the present literature on bariatric surgery. PMID- 29333069 TI - Comparison of strategies and goals for treatment of chronic constipation among gastroenterologists and general practitioners. AB - Background: Although guidelines have been published for the treatment of chronic constipation, little is known about the actual treatment strategies, the definitions of drug efficacy, the parameters for drug selection, and the conceived limitations of the available treatments. The purpose of this study was to address these issues by comparing treatment strategies among gastroenterology specialists (GIs) and general practitioners (GPs). Methods: An internet survey was sent nationwide and at random to GIs and GPs in order to define treatment strategies, drug efficacy, main parameters for drug selections and the main limitations of the available drug therapy. Results: Forty GIs and 132 GPs answered the survey. The maximal sample error was +/-13.4% and +/-8.8%. Treatment strategies varied considerably between GPs and GIs. The major parameters for drug selection were related to drug safety among GIs and to clinical outcome among GPs. The conceived limitations of drug therapy included lack of experience and unwanted side effects. Conclusions: Awareness of the possible treatment options and the recommended order of prescription differs between GIs and GPs. There are still unmet needs for optimizing the treatment for chronic constipation. PMID- 29333068 TI - Nab-paclitaxel as second-line treatment in advanced gastric cancer: a multicenter phase II study of the Hellenic Oncology Research Group. AB - Background: This study evaluated the safety and efficacy of nab-paclitaxel as second-line treatment in patients with advanced gastric adenocarcinoma. Methods: Thirty-nine pretreated patients [33 with taxane-based regimens (docetaxel, cisplatin, and fluorouracil)] and 6 with combination of fluoropyrimidines plus cisplatin with locally advanced inoperable and metastatic gastric and gastroesophageal junction adenocarcinoma were treated with weekly nab-paclitaxel (150 mg/m2 d1, d8, d15 in cycles of 28 days). Results: Partial response (PR) was documented in nine patients (23.1%; 95% confidence interval 10.1-37.2%), stable disease (SD) in 11 (28.2%) and disease progression in 18 (46.2%). The disease control rate (SD + PR + complete response) was 51.3%. Grade 3 and 4 neutropenia occurred in 10.2% and 5.1% of patients, respectively; grade 3 anemia in 5.1%; grade 3 neurotoxicity in 5.1%; and grade 2 pain in 5.1%. The median progression free survival was 3.0 months (range 0.3-13.6) and the median overall survival 6.8 months (range 0.3-22). Conclusion: Nab-paclitaxel as second-line treatment in locally advanced inoperable or metastatic gastric and gastroesophageal junction carcinoma is an active chemotherapy regimen with a manageable toxicity profile and merits further evaluation. PMID- 29333066 TI - New insights into cholangiocarcinoma: multiple stems and related cell lineages of origin. AB - Cholangiocarcinoma (CCA) is a heterogeneous group of malignancies that may develop at any level of the biliary tree. CCA is currently classified into intrahepatic (iCCA), perihilar (pCCA) and distal (dCCA) on the basis of its anatomical location. Notably, although these three CCA subtypes have common features, they also have important inter- and intra-tumor differences that can affect their pathogenesis and outcome. A unique feature of CCA is that it manifests in the hepatic parenchyma or large intrahepatic and extrahepatic bile ducts, furnished by two distinct stem cell niches: the canals of Hering and the peribiliary glands, respectively. The complexity of CCA pathogenesis highlights the need for a multidisciplinary, translational, and systemic approach to this malignancy. This review focuses on advances in the knowledge of CCA histomorphology, risk factors, molecular pathogenesis, and subsets of CCA. PMID- 29333070 TI - Bacterial infections in patients with liver cirrhosis: clinical characteristics and the role of C-reactive protein. AB - Background: The diagnosis of bacterial infection in cirrhotic patients may be difficult, because of the absence of classical signs such as fever and raised white blood cell count. The role of C-reactive protein (CRP) in this context has not been clearly defined. Methods: Clinical and laboratory characteristics of 210 consecutive cirrhotic patients with (n=100) or without (n=110) bacterial infection were compared with a control group of non-cirrhotic patients with infection (n=106). Results: Significantly fewer patients with cirrhosis had a body temperature >=37 degrees C when presenting with bacterial infection (56% cirrhotic vs. 85.5% non-cirrhotic patients, P=0.01). Mean leukocyte count was 6.92 * 103/mm3 in patients with cirrhosis and infection, 5.75 * 103/mm3 (P=0.02) in cirrhotic patients without infection, and 11.28 * 103/mm3 in non-cirrhotic patients with infection (P<0.001). Multivariate analysis revealed that CRP level and model for end-stage liver disease score were significantly associated with the presence of infection in patients with cirrhosis. A cutoff level of CRP>10 mg/L indicated the presence of infection with a sensitivity of 68%, a specificity of 84.5% and an area under the receiver operating characteristic curve of 0.8197. CRP cutoff level differed according to the severity of the liver disease: Child Pugh score (CPS) A: 21.3 mg/L, B: 17 mg/L, and C: 5.78 mg/L. Conclusions: CRP at admission could help diagnose infection in cirrhotic patients. Since the severity of liver disease seems to affect the CRP values, lower CRP levels might indicate infection. Clinical suspicion is necessary to avoid delay in diagnosis and initiate antibiotic treatment. PMID- 29333071 TI - Factors associated with waiting time on the liver transplant list: an analysis of the United Network for Organ Sharing (UNOS) database. AB - Background: Liver transplantation (LT) is an important treatment for acute liver failure and end-stage liver disease. In 2002, the model for end-stage liver disease (MELD) score was incorporated to prioritize patients awaiting LT. Although there is data on how the MELD score affects waiting times, there is a paucity of literature regarding other components. We aimed to evaluate the factors affecting LT waiting times in the United States. Methods: Using the United Network for Organ Sharing (UNOS) database, patients aged 12-75 years listed for LT over the years 2002-2015 were included. Variables tested in the model included patient characteristics, pertinent laboratory values, ABO blood type, region of listing, primary payer, ethnicity, and listing for simultaneous transplantation. Results: A total of 75,771 patients were included in the final analysis. The components of the MELD score were associated with shorter waiting times. Other factors associated with shorter waiting times were the need of mechanical ventilation and region 3 of transplantation. ABO blood type, primary payer, and placement of a transjugular intrahepatic porto-systemic shunt also influenced time on the LT waiting list. Conclusions: MELD score is utilized in the prioritization of liver allocation, and was expected to predict waiting-list time. Mechanical ventilation and other markers of disease severity are associated with higher MELD scores and thus shorter waiting times. Further research is needed to address reasons for the variation in waiting times between regions and payment systems in an attempt to decrease time to LT, standardize the listing process, and improve patient outcomes. PMID- 29333073 TI - The impact of age on the incidence and severity of post-endoscopic retrograde cholangiopancreatography pancreatitis. AB - Background: With advancing age there is progressive pancreatic atrophy and fibrosis, leading to tissue destruction and chronic pancreatitis that has been found to be protective against post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP). However, there are no reports regarding the potential effect of the aging pancreatic changes on the incidence and severity of PEP. Therefore, the aim of the present study was to investigate the impact of senile changes in the pancreas on the incidence and severity of PEP. Methods: A total of 2688 patients who underwent the first therapeutic ERCP at a single center were included in the final analysis of the study. Patients were classified into two groups: 1644 patients aged <=75 years (mean age 61.56+1.26 years), group A; and 1044 patients aged >75 years (mean age 81.97+4.29 years), group B. Patients' files were identified using a retrospective database linked to the endoscopy reporting system. Patients' characteristic, endoscopic findings, details of intervention and rate and severity of PEP were evaluated. Results: No significant differences between the two groups were observed with regard to ERCP indication, patient- and technique-related risk factors for PEP, presence of periampullary diverticulum, and type of therapeutic intervention. The incidence of PEP was 5.2% in group A and 4% in group B (P=NS) with comparable grades of severity. All episodes of pancreatitis had full recovery with conventional treatment. One death occurred from respiratory arrest in each group of patients. Conclusion: This study shows that the pancreatic changes associated with aging do not influence the incidence and severity of PEP. PMID- 29333072 TI - Prevalence of incidental pancreatic cyst on upper endoscopic ultrasound. AB - Background: This study aimed to determine the prevalence of incidental pancreatic cysts in patients undergoing upper endoscopic ultrasound without a known pancreatic abnormality. Methods: This prospective study was conducted in two hospitals in Spain and enrolled consecutive patients referred for upper endoscopic ultrasound for a condition unrelated to the pancreas. Patients with a previous pancreatic anomaly, history of acute or chronic pancreatitis, evidence of acute pancreatitis, previous upper gastrointestinal surgery, or chronic abdominal pain suggestive of pancreatic origin were excluded. Univariate logistic regression was performed to evaluate individual covariates and the incidental pancreatic cyst risk. Results: A total of 298 patients were included, of whom 64 had pancreatic cysts (21.5%; 16.9-26.6%). The mean size of the cysts was 6.3+/ 3.7 (range 3-25) mm. Six cysts (2%) were >10 mm and 16 (5.4%) were compatible with branch duct intraductal papillary mucinous neoplasm. The pancreatic cyst prevalence was similar in the two hospitals and increased significantly with age. Conclusion: The prevalence of incidental pancreatic cysts during endoscopic ultrasound was very high in our study population. PMID- 29333074 TI - Laparoendoscopic rendezvous may be an effective alternative to a failed preoperative endoscopic retrograde cholangiopancreatography in patients with cholecystocholedocholithiasis. AB - Background: Endoscopic retrograde cholangiopancreatography (ERCP), followed by laparoscopic cholecystectomy (LC), remains the standard way of management for patients with cholecystocholedocholithiasis. Laparoendoscopic rendezvous (LERV), a combined procedure for removing the gallbladder laparoscopically and clearing the common bile duct (CBD) endoscopically at the same time, could be an attractive alternative. The aim of this study was to compare LERV with classic ERCP in patients with cholecystocholedocholithiasis. Methods: 886 patients with cholecystocholedocholithiasis were treated either with the LERV technique (90 patients), or with the 2-stage approach, which includes preoperative ERCP followed by LC (796 patients). The primary endpoint was any difference in the success of CBD cannulation and clearance; secondary endpoints were the detection of differences in morbidity (especially post-ERCP pancreatitis [PEP]), and the feasibility of the two approaches. Results: Successful cannulation of the CBD was more frequent with conventional ERCP compared with the LERV technique (89.8% vs. 75.5%, P=0.0001). LERV appears to be as effective as conventional ERCP for complete CBD clearance (85.5% vs. 82.8%, P<0.1). None of the patients in the LERV group had an episode of clinical PEP, whereas in the conventional ERCP group there were 23 episodes of PEP and one death. The median amylase level was higher in patients undergoing conventional ERCP group compared to patients in LERV group. Conclusion: Classic ERCP has a higher rate of successful CBD cannulation and a similar rate of CBD clearance compared to LERV. PMID- 29333075 TI - Safety and efficacy of extending a previous endoscopic sphincterotomy for the treatment of retained or recurrent common bile duct stones. AB - Background: The aim of the study was to evaluate the safety and efficacy of extending a previous endoscopic sphincterotomy (ES) in patients with retained or recurrent common bile duct (CBD) stones. Methods: Between 2001 and 2013, extension of a previous ES, for known or suspected CBD stones, was performed in 118 patients (m/f, 53/65) with a median age of 74 (range: 31-91) years (group A). During the same period, ES was performed in 1064 patients with suspected or known choledocholithiasis (group B). The efficacy and complications of the extension (group A) were analyzed and a comparison was made between groups regarding complications. Results: Bile duct cannulation was straightforward in all patients in group A, while it was considered difficult in 49% of patients in group B. Complete clearance was achieved in 76/97 patients (78%) with CBD stones, after a mean of 1.18 attempts per patient. Mechanical lithotripsy was required in 10% of patients. After extension, immediate bleeding occurred in 24 patients (20%), which stopped spontaneously in 9 (37%) and endoscopic hemostasis was required in the remainder. Complications were more frequent in group B (5.3% vs. 0.8%, P=0.031), but there was no significant difference for any individual complication. Immediate bleeding was more common in group B (29% vs. 20%, P=0.035), but there was no difference in clinical bleeding. Conclusion: Extension of a previous ES seems to be a simple, effective and safe technique, allowing stone clearance in nearly 80% of patients; it is thus recommended in patients with CBD stones after ES. PMID- 29333077 TI - Underwater endoclip closure after endoscopic resection for duodenal adenomas. PMID- 29333076 TI - Parenchyma-sparing hepatectomy (PSH) versus non-PSH for bilobar liver metastases of colorectal cancer. AB - Background: Preoperative interventions have increased the resectability of colorectal cancer (CRC) liver metastases. This retrospective study compares outcomes after liver resection for bilobar CRC metastases between patients who underwent parenchyma-sparing hepatectomy (PSH), i.e., segmentectomies and smaller resections on both lobes, and those treated with non-PSH, i.e., hemihepatectomy plus any resection on the other lobe. Methods: A cohort of 119 patients who underwent liver resection for bilobar CRC metastases were included. Perioperative course and long-term survival were compared between 59 patients who underwent PSH and 60 patients who underwent non-PSH. Statistical analyses were done using Pearson's chi-square test, Fisher's exact test and the Mann-Whitney U test. Overall survival analysis was performed by the Kaplan-Meier estimator and Cox regression analysis. Results: The median number of liver metastases was 2 in patients treated with PSH and 3 in those treated with non-PSH (P<0.01). Postoperative mortality, severe complications and radicality did not differ significantly between groups. Median intraoperative bleeding was 250 mL for PSH and 600 mL for non-PSH (P<0.001). Median operation time and hospital stay were significantly shorter for PSH. Overall survival was comparable between groups, also after adjustment for covariates. Conclusions: There were no significant differences in outcome, except for differences in bleeding, operation time and postoperative stay, favoring PSH. Furthermore, minimizing resection did not influence radicality. Hence, this study supports the use of PSH for bilobar CRC liver metastases when possible. PMID- 29333078 TI - Acute pancreatitis caused by cytomegalovirus-associated duodenal papillitis. PMID- 29333079 TI - Type 1 autoimmune hepatitis presenting with severe autoimmune neutropenia. AB - Autoimmune hepatitis (AIH) is a progressive, chronic liver disease characterized by unresolving hepatocellular inflammation of autoimmune origin. The clinical spectrum may vary from asymptomatic presentation, to non-specific symptoms such as fatigue, arthralgias, nausea and abdominal pain, to acute severe liver disease. AIH is characterized by the presence of interface hepatitis and portal plasma cell infiltration on histological examination, hypergammaglobulinemia, and positive autoantibodies. AIH is associated with other autoimmune diseases and its course is often accompanied by various non-specific hematological disorders. However, the coexistence of autoimmune neutropenia (AIN) is infrequent. We present a case of a female patient diagnosed with type 1 AIH and agranulocytosis on presentation. A diagnosis of AIN was established, based on the patient's sex, the underlying liver disease, the absence of alternative causes, the presence of atypical anti-neutrophil cytoplasmic antibodies in patient's serum and the favorable and dose-dependent treatment of both pathologic entities with corticosteroids and mycophenolate mofetil. PMID- 29333080 TI - Comparisons of Traffic-Related Ultrafine Particle Number Concentrations Measured in Two Urban Areas by Central, Residential, and Mobile Monitoring. AB - Traffic-related ultrafine particles (UFP; <100 nanometers diameter) are ubiquitous in urban air. While studies have shown that UFP are toxic, epidemiological evidence of health effects, which is needed to inform risk assessment at the population scale, is limited due to challenges of accurately estimating UFP exposures. Epidemiologic studies often use empirical models to estimate UFP exposures; however, the monitoring strategies upon which the models are based have varied between studies. Our study compares particle number concentrations (PNC; a proxy for UFP) measured by three different monitoring approaches (central-site, short-term residential-site, and mobile on-road monitoring) in two study areas in metropolitan Boston (MA, USA). Our objectives were to quantify ambient PNC differences between the three monitoring platforms, compare the temporal patterns and the spatial heterogeneity of PNC between the monitoring platforms, and identify factors that affect correlations across the platforms. We collected >12,000 hours of measurements at the central sites, 1,000 hours of measurements at each of 20 residential sites in the two study areas, and >120 hours of mobile measurements over the course of ~1 year in each study area. Our results show differences between the monitoring strategies: mean one-minute PNC on-roads were higher (64,000 and 32,000 particles/cm3 in Boston and Chelsea, respectively) compared to central-site measurements (23,000 and 19,000 particles/cm3) and both were higher than at residences (14,000 and 15,000 particles/cm3). Temporal correlations and spatial heterogeneity also differed between the platforms. Temporal correlations were generally highest between central and residential sites, and lowest between central-site and on-road measurements. We observed the greatest spatial heterogeneity across monitoring platforms during the morning rush hours (06:00-09:00) and the lowest during the overnight hours (18:00-06:00). Longer averaging times (days and hours vs. minutes) increased temporal correlations (Pearson correlations were 0.69 and 0.60 vs. 0.39 in Boston; 0.71 and 0.61 vs. 0.45 in Chelsea) and reduced spatial heterogeneity (coefficients of divergence were 0.24 and 0.29 vs. 0.33 in Boston; 0.20 and 0.27 vs. 0.31 in Chelsea). Our results suggest that combining stationary and mobile monitoring may lead to improved characterization of UFP in urban areas and thereby lead to improved exposure assignment for epidemiology studies. PMID- 29333081 TI - Innate immunity recovers earlier than acquired immunity during severe postoperative immunosuppression. AB - Background: Postoperative immune suppression, particularly a loss of cell mediated immunity, is commonly seen after surgery and is associated with worse outcome, i.e. delayed wound healing, infections, sepsis, multiple-organ failure and cancer recurrence. However, the recovery of immune cells focusing on differences between innate and acquired immunity during severe postoperative immunosuppression is not investigated. Methods: In this retrospective randomized controlled trial (RCT) subgroup analysis, 10 postoperatively immune suppressed patients after esophageal or pancreatic resection were analyzed. Innate and acquired immune cells, the expression of human leukocyte antigen-D related on monocytes (mHLA-DR), lipopolysaccharide (LPS)-induced monocytic TNF-alpha and IL 10 secretion ex vivo, Concanavalin A (Con A)-induced IFN-gamma, TNF-alpha, IL-2, IL-4, IL-5 and IL-10 release were measured preoperatively (od) until day 5 after surgery (pod5). Recovery of immune cells was defined by a significant decrease respectively increase after a significant postoperative alteration. Statistical analyses were performed using nonparametric statistical procedures. Results: Postoperative alterations of innate immune cells recovered on pod2 (eosinophils), pod3 (neutrophils) and pod5 (mHLA-DR, monocytic TNF-alpha and IL-10 secretion), whereas alterations of acquired immune cells (lymphocytes, T cells, T helper cells, and cytotoxic T cells) did not recover until pod5. Peripheral blood T cells showed an impaired production of the T helper (Th) 1 cytokine IFN-gamma upon Con A stimulation on pod1, while Th2 specific cytokine release did not change until pod5.Conclusions: Innate immunity recovered earlier than acquired immunity during severe postoperative immunosuppression. Furthermore, we found a more anti- than pro-inflammatory T cell function on the first day after surgery, while T cell counts decreased. PMID- 29333082 TI - A FCGR3A Polymorphism Predicts Anti-drug Antibodies in Chronic Inflammatory Bowel Disease Patients Treated With Anti-TNF. AB - BACKGROUND: The production of anti-drug antibodies (ADAs) against IgG monoclonal antibodies (mAbs) targeting tumour necrosis factor (TNF) is an important cause of loss of response to anti-TNF mAbs in patients with inflammatory bowel diseases (IBD) such as Crohn's disease (CD) and ulcerative colitis (UC). Since receptors for the Fc portion of IgG (FCGRs) are involved in the degradation of IgG complexes, we hypothesised that a polymorphism in FCGR3A (V158F; rs396991) gene could be involved in anti-TNF ADA generation and treatment resistance. MATERIAL AND METHODS: A cohort of 103 IBD patients (80 CD, 23 UC) were genotyped and serum level of both anti-TNFs (infliximab or adalimumab) and ADA against them were measured. RESULTS: No significant differences were observed between ADA occurrence or V158F genotype and type of disease or the kind of anti-TNF administrated. Interestingly, VV genotype correlated with patients producing ADA (VV: 37.5% vs. FV: 10.6% or FF: 5%; p=0.004) and was an independent predictor of this event after multivariate analysis. Moreover, VV genotype also correlated with those patients receiving anti-TNF dose intensification (p=0.03). CONCLUSION: FCGR3A V158F polymorphism seems to be associated with ADA production against mAbs and it could be taken into account when considering the dose and type of anti-TNF in IBD patients. PMID- 29333083 TI - Optimal Load for Bone Tissue Scaffolds with an Assigned Geometry. AB - Thanks to the recent advances of three-dimensional printing technologies the design and the fabrication of a large variety of scaffold geometries was made possible. The surgeon has the availability of a wide number of scaffold micro architectures thus needing adequate guidelines for the choice of the best one to be implanted in a patient-specific anatomic region. We propose a mechanobiology based optimization algorithm capable of determining, for bone tissue scaffolds with an assigned geometry, the optimal value Lopt of the compression load to which they should be subjected, i.e. the load value for which the formation of the largest amounts of bone is favoured and hence the successful outcome of the scaffold implantation procedure is guaranteed. Scaffolds based on hexahedron unit cells were investigated including pores differently dimensioned and with different shapes such as elliptic or rectangular. The algorithm predicted decreasing values of the optimal load for scaffolds with pores with increasing dimensions. The optimal values predicted for the scaffolds with elliptic pores were found higher than those with rectangular ones. The proposed algorithm can be utilized to properly guide the surgeon in the choice of the best scaffold type/geometry that better satisfies the specific patient requirements. PMID- 29333084 TI - Effects of alpha-Mangostin on Viability, Growth and Cohesion of Multicellular Spheroids Derived from Human Breast Cancer Cell Lines. AB - Background: alpha-Mangostin (alphaMG) is extracted from Garcinia mangostana Linn and exerts antiproliferative activities. Although several researches on alphaMG were performed using cell monolayers, the in vitro pharmacological effects on 3D cancer models have never been investigated. Aim of the present study was to find new anticancer properties of alphaMG by evaluating the changes that this compound provokes in multicellular tumour spheroids (MCTSs). Methods: MCTSs were generated from MDA-MB-231 and MCF-7 breast tumour cell lines and then treated with 0.1/30 MUg/ml alphaMG for 24 and 48 h. MCTS size, density, and cell migration were determined by software elaboration of phase contrast images captured by a digital camera. Cell viability was evaluated by resazurin and acid phosphatase assays, while cell apoptosis was assessed by a fluorescent assay of caspase activity. The distribution of living cells inside MCTSs was shown by live/dead fluorescence staining. Results: A dose-dependent decrease in cell viability was obtained by treating MDA-MB-231 spheroids with alphaMG for 48 h (IC50 = 0.70-1.25 MUg/ml). A significant reduction in spheroid volume, paralleled by its increased compactness, was observed only at concentration of 30 MUg/ml, but not with lower doses of alphaMG. By contrast, alphaMG in the range of 5-15 MUg/ml increased the size of MCTSs due to a parallel reduction in cell aggregation. The same window of concentrations was also able to stimulate cell apoptosis in a dose-dependent manner. Bimodal volumetric effects were also obtained by treating the spheroids generated from the MCF-7 cells with 0.1/30 MUg/ml alphaMG for 48 h. Finally, doses higher than 5 MUg/ml caused a progressive impairment in cell migration from the edge of MDA-MB-231 MCTSs. Conclusion: After exposure at doses of alphaMG just above IC50, MDA-MB-231 spheroids showed a significant reduction in cell adhesion that did not stimulate cell migration but, on the contrary, blunted cell motility. These findings suggest a novel anticancer feature of alphaMG that could be taken into consideration to improve conventional drug penetration into the tumour bulk. PMID- 29333085 TI - Next Generation Sequencing expression profiling of mitochondrial subunits in men with Klinefelter syndrome. AB - Objectives: Klinefelter syndrome (KS) is one of the most common sex-chromosome disorders as it affects up to 1 in every 600-1000 newborn males. Men with KS carry one extra X chromosome and they usually present a 47,XXY karyotype, but less frequent variants have also been reported in literature. KS typical symptoms include tall stature, gynecomastia, broad hips, hypogonadism and absent spermatogenesis. The syndrome is also related to a wide range of cognitive deficits, among which language-based learning disabilities and verbal cognition impairment are frequently diagnosed. The present study was carried out to investigate the role of mitochondrial subunits in KS, since the molecular mechanisms underlying KS pathogenesis are not fully understood. Methods: The study was performed by the next generation sequencing analysis and qRT-PCR assay. Results: We were able to identify a significant down-expression of mitochondrial encoded NADH: ubiquinone oxidoreductase core subunit 6 (MT-ND6) in men with KS. Conclusion: It is known that defects of the mtDNA encoding mitochondrial subunits are responsible for the malfunction of Complex I, which will eventually lead to the Complex I deficiency, the most common respiratory chain defect in human disorders. Since it has been shown that decreased Complex I protein levels could induce apoptosis, wehypothesizethat the above-mentioned MT-ND6 down-expression contributes to the wide range of phenotypes observed in men with KS. PMID- 29333087 TI - Antioxydation And Cell Migration Genes Are Identified as Potential Therapeutic Targets in Basal-Like and BRCA1 Mutated Breast Cancer Cell Lines. AB - Basal-like breast cancers are among the most aggressive cancers and effective targeted therapies are still missing. In order to identify new therapeutic targets, we performed Methyl-Seq and RNA-Seq of 10 breast cancer cell lines with different phenotypes. We confirmed that breast cancer subtypes cluster the RNA Seq data but not the Methyl-Seq data. Basal-like tumor hypermethylated phenotype was not confirmed in our study but RNA-Seq analysis allowed to identify 77 genes significantly overexpressed in basal-like breast cancer cell lines. Among them, 48 were overexpressed in triple negative breast cancers of TCGA data. Some molecular functions were overrepresented in this candidate gene list. Genes involved in antioxydation, such as SOD1, MGST3 and PRDX or cadherin-binding genes, such as PFN1, ITGB1 and ANXA1, could thus be considered as basal like breast cancer biomarkers. We then sought if these genes were linked to BRCA1, since this gene is often inactivated in basal-like breast cancers. Nine genes were identified overexpressed in both basal-like breast cancer cells and BRCA1 mutated cells. Amongst them, at least 3 genes code for proteins implicated in epithelial cell migration and epithelial to mesenchymal transition (VIM, ITGB1 and RhoA). Our study provided several potential therapeutic targets for triple negative and BRCA1 mutated breast cancers. It seems that migration and mesenchymal properties acquisition of basal-like breast cancer cells is a key functional pathway in these tumors with a high metastatic potential. PMID- 29333086 TI - Ethical and Safety Issues of Stem Cell-Based Therapy. AB - Results obtained from completed and on-going clinical studies indicate huge therapeutic potential of stem cell-based therapy in the treatment of degenerative, autoimmune and genetic disorders. However, clinical application of stem cells raises numerous ethical and safety concerns. In this review, we provide an overview of the most important ethical issues in stem cell therapy, as a contribution to the controversial debate about their clinical usage in regenerative and transplantation medicine. We describe ethical challenges regarding human embryonic stem cell (hESC) research, emphasizing that ethical dilemma involving the destruction of a human embryo is a major factor that may have limited the development of hESC-based clinical therapies. With previous derivation of induced pluripotent stem cells (iPSCs) this problem has been overcome, however current perspectives regarding clinical translation of iPSCs still remain. Unlimited differentiation potential of iPSCs which can be used in human reproductive cloning, as a risk for generation of genetically engineered human embryos and human-animal chimeras, is major ethical issue, while undesired differentiation and malignant transformation are major safety issues. Although clinical application of mesenchymal stem cells (MSCs) has shown beneficial effects in the therapy of autoimmune and chronic inflammatory diseases, the ability to promote tumor growth and metastasis and overestimated therapeutic potential of MSCs still provide concerns for the field of regenerative medicine. This review offers stem cell scientists, clinicians and patient's useful information and could be used as a starting point for more in-depth analysis of ethical and safety issues related to clinical application of stem cells. PMID- 29333088 TI - Bone Regeneration using Silk Hydroxyapatite Hybrid Composite in a Rat Alveolar Defect Model. AB - Background: To overcome the limited source of autogenous bone in bone grafting, many efforts have been made to find bone substitutes. The use of hybrid composites of silk and hydroxyapatite to simulate natural bone tissue can overcome the softness and brittleness of the individual components. Methods: Critical-sized, 7 x 4 x 1.5 mm alveolar defects were created surgically in 36 Sprague-Dawley rats. Three treatment groups were tested: an empty defect group (group I), a silk fibrin scaffold group (group II), and a hydroxyapatite conjugated silk fibrin scaffold group (group III). New bone formation was assessed using computed tomography and histology at 4, 8, and 12 weeks, and semi quantitative western blot analysis was done to confirm bone protein formation at 12weeks. Statistical analysis of new bone formation was done using the Kruskal Wallis test. Results: Radiomorphometric volume analysis revealed that new bone formation was 64.5% in group I, 77.4% in group II, and 84.8% in group III (p=0.027) at 12 weeks. Histologically, the osteoid tissues were surrounded by osteoblasts not only at the border of the bone defect but in the center of the scaffold implanted area in group III from week 8 on. Semi-quantitative western blotting revealed that osteocalcin expression in group III was 1.8 times higher than group II and 2.6 times higher than group I. Conclusions: New bone formation was higher in hybrid scaffolds. Both osteoconduction at the defect margin and osteoinduction at the center of the defect were confirmed. There were no detected complications related to foreign body implantation. PMID- 29333089 TI - Lentivirus-mediated shRNA Targeting CNN2 Inhibits Hepatocarcinoma in Vitro and in Vivo. AB - Objective: Hepatocellular carcinoma (HCC) is one of the most common malignant tumors with a high rate of mortality. Our previous study shows the expression of calponin 2 (CNN2) is up-regulated in hepatocellular carcinoma tissues, especially in metastatic ones. To better understand the role of CNN2 in HCC, RNA interference (RNAi) was used to explore its role in tumor growth and metastasis. Methods: Lentivirus-mediated CNN2-shRNA was transfected into SK-hep-1 cells, and the efficacy of CNN2 expression, cell migration, invasion, proliferation and cell cycles were evaluated by quantitative real-time polymerase chain reaction (qRT PCR), Western blot (WB), Transwell assay, methyl thiazol tetrazolium assay and flow cytometry, respectively. SK-hep-1 cells transfected with Lentivirus-CNN2 shRNA were xenografted in Balb/C nude mice to explore the effect of CNN2-shRNA in tumor growth. Xenograft tumor tissues were examined for their histopathology, cell apoptosis, the expression of total protein and their corresponding phosphorylated protein of MEK1/2, ERK1/2, AKT, by hematoxylin and eosin stain (H & E staining), TUNEL assay, immunohistochemical technique, respectively. Results: Our research shows it is evident that CNN2 shRNA can effectively down-regulate the expressions of CNN2 mRNA and protein, inhibit cell proliferations, arrest cell cycles at the S phase and reduce cell migration and invasion. SK-hep-1 cells with CNN2 down-regulation have markedly attenuated tumor growth in nude mice. Xenograft tumor tissues have displayed typical tumor characteristics and no apoptosis is detected in shRNA group or in control group. No metastatic tumor was found in any group of nude mice. With CNN2 protein down-regulation, the protein of pMEK1/2 and pERK1/2 are effectively down-regulated, except pAKT, AKT, MEK1/2 and ERK1/2. Conclusions: CNN2 plays an important role in tumor growth and metastasis, possibly through MEK1/2-ERK1/2 signaling pathway. Our study illustrate that CNN2 might be a potential target in HCC molecular target therapy. PMID- 29333090 TI - Gene and Protein Expression Profiles in a Mouse Model of Collagen-Induced Arthritis. AB - The risk of rheumatoid arthritis (RA), an autoimmune disease, in the elderly population increases along with that of atherosclerosis, cardiovascular disease, type 2 diabetes, and Alzheimer's disease. Identifying specific biomarkers for RA can clarify the underlying molecular mechanisms and can aid diagnosis and patient care. To this end, the present study investigated the genes and proteins that are differentially expressed in RA using a mouse collagen-induced arthritis (CIA) model. We performed gene microarray and proteome array analyses using blood samples from the mice and found that 50 genes and 24 proteins were upregulated and 48 genes were downregulated by more than 2-fold in the CIA model relative to the control. The gene microarray and proteome array results were validated by evaluating the expression levels of select genes and proteins by real-time PCR and western blotting, respectively. We found that the level of integrin alpha2, which has not been previously reported as a biomarker of RA, was significantly increased in CIA mice as compared to controls. These findings provide a set of novel biomarkers that can be useful for diagnosing and evaluating the progression of RA. PMID- 29333091 TI - In vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells and the related mechanism. AB - We aimed to analyze the in vitro and in vivo effects of miRNA-19b/20a/92a on gastric cancer stem cells (GCSCs) and the related mechanism. GCSCs were cultured until adherence and differentiation, and subjected to miRNA microarray analysis to find and to verify miRNA deletion. Cells stably expressing lentivirus carrying miRNA-19b/20a/92a were constructed by transfection. The relationship between miRNA-19b/20a/92a and renewal of GCSCs was studied by the tumor sphere assay, and that between miRNA-19b/20a/92a and their proliferation was explored with MTT and colony formation assays. Target genes of miRNA for promoting the proliferation and self-renewal of GCSCs were found by using bioinformatics database, and verified by the reporter gene assay and Western blot. The expressions of miRNA 19b/20a/92a gradually decreased during the adherence and differentiation of GCSCs. The expressions of lentivirus carrying miRNA-17-19 gene in MKN28 and CD44 /EpCAM- cells were increased significantly. Transient transfection with pre-miRNA 19b/20a/92a elevated miRNA expressions in CD44-/EpCAM- and MKN28 cells, whereas transfection with pre-miRNA-19b/20a/92a antagonists reduced the expressions in SGC7901 and CD44+/EpCAM+ cells. Overexpression of lenti-miRNA-19b/20a/92a significantly enhanced the capability of GCSCs to form tumor spheres. In the presence of chemotherapeutic agent, the survival of lenti-miRNA-19b/20a/92a infected cells was prolonged. Transient transfection with pre-miRNA-19b/20a/92a significantly increased the number of CD44+/EpCAM+ cells, but transfection with antagonists had the opposite outcomes. The stable miRNA-19b/20a/92a expression groups proliferated faster than the control group did. The proliferation of cells transfected with pre-miRNA-19b/20a/92a was accelerated, whereas that of cells transfected with the antagonists was decelerated. Compared with the control group, the number of colonies in the former group was higher, but that in the latter group was lower. miRNA-19b and miRNA-92a could bind the 3' untranslated region of HIPK1, while miRNA-20a was able to bind that of E2F1. Expressions of miRNA-20a and miRNA-92a in gastric cancer samples were negatively correlated with the prognosis of patients. miRNA-19b/20a/92a facilitated the self-renewal of GCSCs by targeting E2F1 and HIPK1 on the post-transcriptional level and activating the beta-catenin signal transduction pathway. miRNA-92a was an independent factor and index predicting the prognosis of gastric cancer. PMID- 29333092 TI - Role of APOBEC3H in the Viral Control of HIV Elite Controller Patients. AB - Background APOBEC3H (A3H) gene presents variation at 2 positions (rs139297 and rs79323350) leading to a non-functional protein. So far, there is no information on the role played by A3H in spontaneous control of HIV. The aim of this study was to evaluate the A3H polymorphisms distribution in a well-characterized group of Elite Controller (EC) subjects. Methods We analyzed the genotype distribution of two different SNPs (rs139297 and rs79323350) of A3H in 30 EC patients and compared with 11 non-controller (NC) HIV patients. Genotyping was performed by PCR, cloning and Sanger sequencing. Both polymorphisms were analyzed jointly in order to adequately attribute the active or inactive status of A3H protein. Results EC subjects included in this study were able to maintain a long-term sustained spontaneous HIV-viral control and optimal CD4-T-cell counts; however, haplotypes leading to an active protein were very poorly represented in these patients. We found that the majority of EC subjects (23/30; 77%) presented allelic combinations leading to an inactive A3H protein, a frequency slightly lower than that observed for NC studied patients (10/11; 91%). Conclusions The high prevalence of non-functional protein coding-genotypes in EC subjects seems to indicate that other innate restriction factors different from APOBEC3H could be implicated in the replication control exhibited by these subjects. PMID- 29333093 TI - Bactericidal effects of deep ultraviolet light-emitting diode for solutions during intravenous infusion. AB - Background: Ultraviolet irradiation is effectively used as a disinfection method for inactivating microorganisms. Methods: We investigated the bactericidal effects by irradiation with a deep-ultraviolet light-emitting diode (DUV-LED) on the causative microorganisms of catheter related blood stream infection contaminating the solution for intravenous infusion. For irradiation, prototype modules for water disinfection with a DUV-LED were used. Experiments were conducted on five kinds of microorganisms. We examined the dependence of bactericidal action on eleven solutions. Administration sets were carried out three types. Results: When the administration set JY-PB343L containing the infusion tube made of polybutadiene was used, the bactericidal action of the DUV LED against all tested microorganisms in the physiological saline solutions was considered to be effective. We confirmed that the number of viable bacteria decreased in 5% glucose solution and electrolyte infusions with DUV-LED irradiation. Conclusions: These results indicate that the DUV-LED irradiation has bactericidal effects in glucose infusion and electrolyte infusions by irradiating via a plasticizer-free polybutadiene administration set. We consider DUV-LED irradiation to be clinically applicable. PMID- 29333094 TI - Left ventricular diastolic and systolic dyssynchrony and dysfunction in heart failure with preserved ejection fraction and a narrow QRS complex. AB - Aims: Mechanical dyssynchrony has been reported in heart failure with preserved ejection fraction (HFpEF), with a majority of patients having a narrow QRS complex; however, whether any benefit is observed with restoration of dyssynchrony remains unclear. We sought to assess left ventricular (LV) dyssynchrony and function in HFpEF and elucidate the underlying mechanisms that may account for HFpEF. Methods: Seventy-eighty patients with a narrow QRS complex including 47 with HFpEF, 31 with heart failure with reduced ejection fraction (HFrEF) patients, and 29 with asymptomatic left ventricular diastolic dysfunction (LVDD) were recruited. Forty-five normal subjects acted as controls. Systolic LV longitudinal strain (LS), systolic longitudinal strain rate (LSrS), early diastolic longitudinal strain rate (LSrE), and late diastolic longitudinal strain rate (LSrA) were measured using speckle tracking echocardiography. LV diastolic and systolic dyssynchrony (Te-SD and Ts-SD) were calculated. Results: Te-SD and Ts-SD were prolonged in HFpEF and HFrEF patients than in the control group (p<0.05). However, Ts-SD was shorter in HFpEF patients compared to HFrEF patients despite a narrow QRS complex (p<0.05). LV global LS, LSrS, and LSrE were decreased in patients with HFpEF and HFrEF compared to other groups, with HFrEF being even more reduced than HFpEF (p<0.05). Reduced LS, LSrS, and LSrE could effectively differentiate HF from asymptomatic LVDD patients (p<0.05). Conclusion: HFrEF exhibited increased systolic dyssynchrony compared to HFpEF despite a narrow QRS complex in addition to the more reduced diastolic and systolic function. Therefore, targeting to improve diastolic and systolic function instead of managing systolic dyssynchrony might be of great importance in the treatment of HFpEF. PMID- 29333095 TI - Cinnamomum Cassia Extracts Suppress Human Lung Cancer Cells Invasion by Reducing u-PA/MMP Expression through the FAK to ERK Pathways. AB - Cinnamomum cassia exhibits antioxidative, apoptotic, and cytostatic properties. These activities have been attributed to the modulation of several biological processes and are beneficial for possible pharmaceutical applications. However, the potential of C. cassia in retarding lung adenocarcinoma cells metastasis remains ambiguous. We determined whether C. cassia extract (CCE) reduces metastasis of human lung adenocarcinoma cells. The results showed that CCE treatment (up to 60 MUg/mL) for 24 h exhibited no cytotoxicity on the A549 and H1299 cell lines but inhibited the motility, invasiveness, and migration of these cells by repressing matrix metalloproteinase (MMP)-2 and urokinase-type plasminogen activator (u-PA). CCE also impaired cell adhesion to collagen. CCE significantly reduced p-focal adhesion kinase (FAK) Tyr397, p-FAK Tyr925, p extracellular signal-regulated kinases (ERK)1/2, and Ras homolog gene family (Rho)A expression. CCE showed anti-metastatic activity of A549 and H1299 cells by repressing u-PA/MMP-2 via FAK to ERK1/2 pathways. These findings may facilitate future clinical trials of lung adenocarcinoma chemotherapy to confirm the promising results. PMID- 29333096 TI - Analysis of MED12 Mutation in Multiple Uterine Leiomyomas in South Korean patients. AB - Uterine leiomyomas are one of the most common benign gynecologic tumors, but the exact causes are not completely understood. In 2011, through DNA sequencing, MED12 mutation was discovered in approximately 71% of uterine leiomyomas. Several recent studies confirmed the high frequency of MED12 mutation in uterine leiomyoma. Nevertheless, no study has been done on MED12 mutation in the case of patients with multiple leiomyomas in a patient. The purpose of this study was to investigate the frequency of MED12 mutations in uterine leiomyomas of South Korean patients. In addition, we examined MED12 mutation in multiple leiomyomas in the same patients. Uterine leiomyoma tissues were obtained from symptomatic women who underwent hysterectomy or myomectomy for medically indicated reasons. We collected 60 uterine leiomyomas from 41 women. Tumor size ranged from 1 to 12cm. Patients' ages ranged from 25 to 55 years with an average of 38.4 years. Of the 60 tumors, 40 (66.67%) displayed MED12 mutation. Among the 41 patients, 14 patients had multiple leiomyomas and we analyzed those multiple leiomyomas. Three of them had the same mutations. Five of them, each leiomyoma had a different mutation. Two of them did not have mutation. Four of them had both mutation positive and mutation-negative leiomyomas. In conclusion, we confirmed the high frequency of the MED12 mutation in uterine leiomyomas of South Korean patients. We also identified various MED12 mutation status in patients with multiple leiomyomas. This suggests that in a given patient, different tumors may have arisen from different cell origins and therefore it is supposed that occurrence of multiple leiomyoma in a single patient may not be caused by intrauterine metastasis or dissemination. PMID- 29333097 TI - Preliminary Study of MR and Fluorescence Dual-mode Imaging: Combined Macrophage Targeted and Superparamagnetic Polymeric Micelles. AB - Purpose: To establish small-sized superparamagnetic polymeric micelles for magnetic resonance and fluorescent dual-modal imaging, we investigated the feasibility of MR imaging (MRI) and macrophage-targeted in vitro. Methods: A new class of superparamagnetic iron oxide nanoparticles (SPIONs) and Nile red-co loaded mPEG-Lys3-CA4-NR/SPION polymeric micelles was synthesized to label Raw264.7 cells. The physical characteristics of the polymeric micelles were assessed, the T2 relaxation rate was calculated, and the effect of labeling on the cell viability and cytotoxicity was also determined in vitro. In addition, further evaluation of the application potential of the micelles was conducted via in vitro MRI. Results: The diameter of the mPEG-Lys3-CA4-NR/SPION polymeric micelles was 33.8 +/- 5.8 nm on average. Compared with the hydrophilic SPIO, mPEG Lys3-CA4-NR/SPION micelles increased transversely (r2), leading to a notably high r2 from 1.908 ug/mL-1S-1 up to 5.032 ug/mL-1S-1, making the mPEG-Lys3-CA4 NR/SPION micelles a highly sensitive MRI T2 contrast agent, as further demonstrated by in vitro MRI. The results of Confocal Laser Scanning Microscopy (CLSM) and Prussian blue staining of Raw264.7 after incubation with micelle containing medium indicated that the cellular uptake efficiency is high. Conclusion: We successfully synthesized dual-modal MR and fluorescence imaging mPEG-Lys3-CA4-NR/SPION polymeric micelles with an ultra-small size and high MRI sensitivity, which were effectively and quickly uptaken into Raw 264.7 cells. mPEG-Lys3-CA4-NR/SPION polymeric micelles might become a new MR lymphography contrast agent, with high effectiveness and high MRI sensitivity. PMID- 29333098 TI - MiR-22-3p Regulates Cell Proliferation and Inhibits Cell Apoptosis through Targeting the eIF4EBP3 Gene in Human Cervical Squamous Carcinoma Cells. AB - Background: MicroRNAs (miRNAs) are non-coding small RNAs that function as negative regulators of gene expression and are involved in tumour biology. The eIF4E-binding proteins (eIF4EBPs) play essential roles in preventing translation initiation and inhibiting protein synthesis at a global or message-specific level in a variety of tumours. Methods: According to comparative miRNA profiles of clinical cervical cancer and non-cancerous cervical tissue specimens, several miRNAs were aberrantly expressed in the cervical cancer samples. C33a and SiHa cell proliferation and apoptosis were detected using methyl thiazolyl tetrazolium (MTT) and flow cytometry assays, respectively. Results: Among the aberrantly expressed miRNAs, miR-22-3p was significantly differentially expressed in cervical cancer tissues and was highly associated with cervical cancer cell growth regulation. In addition, bioinformatic predictions and experimental validation were used to identify whether eIF4E-binding protein 3 (eIF4EBP3) was a direct target of miR-22-3p; eIF4EBP3 protein levels were generally low in the cervical cancer tissues. Furthermore, functional studies revealed that either a miR-22-3p inhibitor or eIF4EBP3 overexpression could induce apoptosis in cervical cancer cells in vitro. Importantly, we found that eIF4EBP3 accumulation could significantly attenuate cervical cancer cell proliferation triggered by a miR-22 3p mimic as well as enhance apoptosis in cervical cancer cells. Conclusion: Taken together, our data provide primary proof that miR-22-3p can induce cervical cancer cell growth at least in part by up-regulating its expression to decrease eIF4EBP3 expression levels; miR-22-3p thus holds promise as a prognostic biomarker and potential therapeutic target for treating cervical cancer. PMID- 29333099 TI - Pulsed Radiofrequency Applied to the Sciatic Nerve Improves Neuropathic Pain by Down-regulating The Expression of Calcitonin Gene-related Peptide in the Dorsal Root Ganglion. AB - Background: Clinical studies have shown that applying pulsed radiofrequency (PRF) to the neural stem could relieve neuropathic pain (NP), albeit through an unclear analgesic mechanism. And animal experiments have indicated that calcitonin gene related peptide (CGRP) expressed in the dorsal root ganglion (DRG) is involved in generating and maintaining NP. In this case, it is uncertain whether PRF plays an analgesic role by affecting CGRP expression in DRG. Methods: Rats were randomly divided into four groups: Groups A, B, C, and D. In Groups C and D, the right sciatic nerve was ligated to establish the CCI model, while in Groups A and B, the sciatic nerve was isolated without ligation. After 14 days, the right sciatic nerve in Groups B and D re-exposed and was treated with PRF on the ligation site. Thermal withdrawal latency (TWL) and hindpaw withdrawal threshold (HWT) were measured before PRF treatment (Day 0) as well as after 2, 4, 8, and 14 days of treatment. At the same time points of the behavioral tests, the right L4-L6 DRG was sampled and analyzed for CGRP expression using RT-qPCR and an enzyme-linked immunosorbent assay (ELISA). Results: Fourteen days after sciatic nerve ligation, rats in Groups C and D had a shortened TWL (P<0.001) and a reduced HWT (P<0.001) compared to those in Groups A and B. After PRF treatment, the TWL of the rats in Group D gradually extended with HWT increasing progressively. Prior to PRF treatment (Day 0), CGRP mRNA expressions in the L4-L6 DRG of Groups C and D increased significantly (P<0.001) and were 2.7 and 2.6 times that of Group A respectively. ELISA results showed that the CGRP content of Groups C and D significantly increased in comparison with that of Groups A and B (P<0.01). After PRF treatment, the mRNA expression in the DRG of Group D gradually decreased and the mRNA expression was 1.7 times that of Group A on the 4th day(P> 0.05). On the 8th and 14th days, the mRNA levels in Group D were restored to those of Groups A and B. Meanwhile, the CGRP content of Group D gradually dropped over time, from 76.4 pg/mg (Day 0) to 57.5 pg/mg (Day 14). Conclusions: In this study, we found that, after sciatic nerve ligation, rats exhibited apparent hyperalgesia and allodynia, and CGRP mRNA and CGRP contents in the L4-L6 DRG increased significantly. Through lowering CGRP expression in the DRG, PRF treatment might relieve the pain behaviors of NP. PMID- 29333100 TI - Assessment of the Temporomandibular Joint Function in Young Adults without Complaints from the Masticatory System. AB - Objective of the study was to evaluate the clinical status of the masticatory system in young adults with full permanent dentition and no stomatognathic system complaints. The study involved 186 randomly selected people with full dental arches with normal occlusal conditions corresponding to Angle's Class I aged 18 - 21 years with an average age of 19 years. Subjects were clinically examined and temporomandibular joint (TMJ) vibrations were recorded during open-wide and close movements using BioJVA. Then, patients were categorized into groups according to Piper's classification system. The TMJs of the subjects were categorized according to the values of the vibration energy and the Piper protocol. This detected 33.4% of the joints with loosened ligaments, subluxation in 8.28%, initial signs of disc dysfunction in 5.08% and disc displacement without locking in 1.6 %. Median frequency differed significantly (p < 0.05) between the group of subjects with initial signs of TMJ dysfunction and other groups. Peak Frequency differed significantly (p < 0.05) between the healthy joints and those with TMJ subluxation. In this group of young healthy people, the majority of study joints generated small vibrations. However, a subset of people manifested higher vibrations that may indicate an early stage of TMJ dysfunction. Median Frequency was an important parameter for detecting initial symptoms of TMJ dysfunction. Peak Frequency was an important characteristic parameter for detecting TMJ subluxation. PMID- 29333101 TI - Variations in the AURKA Gene: Biomarkers for the Development and Progression of Hepatocellular Carcinoma. AB - Hepatocellular carcinoma (HCC) is a liver malignancy and a major cause of cancer mortality worldwide. AURKA (aurora kinase A) is a mitotic serine/threonine kinase that functions as an oncogene and plays a critical role in hepatocarcinogenesis. We report on the association between 4 single nucleotide polymorphisms (SNPs) of the AURKA gene (rs1047972, rs2273535, rs2064836, and rs6024836) and HCC susceptibility as well as clinical outcomes in 312 patients with HCC and in 624 cancer-free controls. We found that carriers of the TT allele of the variant rs1047972 were at greater risk of HCC compared with wild-type (CC) carriers. Moreover, carriers of at least one A allele in rs2273535 were less likely to progress to stage III/IV disease, develop large tumors or be classified into Child-Pugh class B or C. Individuals with at least one G allele at AURKA SNP rs2064863 were at lower risk of developing large tumors or progressing to Child Pugh grade B or C. Our results indicate that genetic variations in the AURKA gene may serve as an important predictor of early-stage HCC and be a reliable biomarker for the development of HCC. PMID- 29333102 TI - An Amino Acids Mixture Attenuates Glycemic Impairment but not Affects Adiposity Development in Rats Fed with AGEs-containing Diet. AB - Background: Unhealthy western dietary patterns lead to over-consumption of fat and advanced glycation end-products (AGEs), and these account for the developments of obesity, diabetes, and related metabolic disorders. Certain amino acids (AAs) have been recently demonstrated to improve glycemia and reduce adiposity. Therefore, our primary aims were to examine whether feeding an isoleucine-enriched AA mixture (4.5% AAs; Ile: 3.0%, Leu: 1.0%, Val: 0.2%, Arg: 0.3% in the drinking water) would affect adiposity development and prevent the impairments of glycemic control in rats fed with the fat/AGE-containing diet (FAD). Methods: Twenty-four male Sprague-Dawley rats were assigned into 1) control diet (CD, N = 8), 2) FAD diet (FAD, N = 8), and 3) FAD diet plus AA (FAD/AA, N = 8). After 9-weeks intervention, the glycemic control capacity (glucose level, ITT, and HbA1c levels), body composition, and spontaneous locomotor activity (SLA) were evaluated, and the fasting blood samples were collected for analyzing metabolic related hormones (insulin, leptin, adiponectin, and corticosterone). The adipose tissues were also surgically collected and weighed. Results: FAD rats showed significant increases in weight gain, body fat %, blood glucose, HbA1c, leptin, and area under the curve of glucose during insulin tolerance test (ITT-glucose-AUC) in compared with the CD rats. However, the fasting levels of blood glucose, HbA1c, leptin, and ITT-glucose-AUC did not differ between CD and FAD/AA rats. FAD/AA rats also showed a greater increase in serum testosterone. Conclusion: The amino acid mixture consisting of Ile, Leu, Val, and Arg showed clear protective benefits on preventing the FAD-induced obesity and impaired glycemic control. PMID- 29333103 TI - Interleukin-35 Level Is Elevated in Patients with Chronic Hepatitis B Virus Infection. AB - Backgrounds: As one of the major public health problems, the hepatitis B virus (HBV) infection would activate the immune system. The outcome of HBV infection was affect significantly by the interactions between HBV and host immune response. Interleukins play important role in anti-viral immunity. Here we investigated the role of interleukin-35 (IL-35) in chronic HBV infection patients. Methods/Results: Serum IL-35 in 72 chronic hepatitis B virus infection patients and 41 healthy control subjects were analyzed by ELISA assay. The mRNA level of IL-35 in PBMCs was determined by RT-qPCR. In this study, we found that both protein and mRNA levels of IL-35 were significantly decreased in chronic HBV patients compared to the healthy controls. Furthermore, the statistical analysis found that serum IL-35 was significantly associated with HBV DNA (P =0.0158), ALT (P =0.0003), AST (P =0.0216), TB (P =0.0270) and AFP (P =0.0369). Importantly, correlation analysis also found that serum IL-35 level was negatively correlated with HBV DNA copies, ALT, AST, TB and AFP. Meanwhile, IL-35 treatment inhibited the level of HBV DNA, HBsAg and HBeAg in HepAD38 cells. Conclusion: Our study identified that IL-35 may be a novel marker associated with HBV infection and hepatocytes injury. These data suggested the potential use of IL-35 in the HBV treatment. PMID- 29333104 TI - What Did You Expect?: The Interaction Between Cigarette and Blunt vs. Non-Blunt Marijuana Use among African American Young Adults. AB - Background: Marijuana and tobacco co-use is highly prevalent among African American young adults. In an effort to inform prevention and treatment interventions, the current study examined the expectancies around the co-use of marijuana and cigarettes among African American young adults. Methods: An anonymous online survey recruited African American adults (N = 111) age 18 to 29 who reported past-month marijuana and cigarette co-use. Participants completed the 14-item Nicotine and Marijuana Interaction Expectancy (NAMIE) Questionnaire, with three scales: (1) marijuana use increases tobacco use and urges, (2) tobacco use increases marijuana use and urges and (3) smoking to cope with marijuana urges. Participants also answered questions about marijuana and tobacco initiation and use. Analyses were conducted separately for blunt co-users (i.e., blunt and cigarette use) and non-blunt co-users (i.e., non-blunt marijuana and cigarette use). Results: A majority of co-users (66%) used blunts as a form of co use. Non-blunt co-users had higher expectancy scores on NAMIE scales 2 and 3 than blunt co-users. However, only blunt co-users showed a positive association between severity of marijuana use and NAMIE scales 2 (p <.01) and 3 (p <.01). Conclusions: Findings provide further evidence for the use of the NAMIE and suggest a need to assess and address expectations regarding marijuana and tobacco co-use in prevention and treatment interventions, especially among young African American adults who co-use blunts and cigarettes. PMID- 29333106 TI - Which Point-of-Care Tests Would Be Most Beneficial to Add to Clinical Practice?: Findings From a Survey of 3 Family Medicine Clinics in the United States. AB - Background: Point-of-care tests (POCTs) are increasingly used in family medicine to facilitate screening, diagnosis, monitoring, treatment, and referral decisions for a variety of conditions. Point-of-care tests that clinicians believe might be beneficial to add to clinical practice and the conditions for which they would be most useful in family medicine remain poorly understood in the United States. Methods: Forty-two clinicians at 3 family medicine residency clinics completed a brief survey asking which POCTs they believed would be beneficial to add to their clinical practice and the conditions POCTs would be most useful for. We calculated frequencies of reported POCTs and conditions using descriptive statistics. Results: Clinicians identified 34 POCTs that would be beneficial to add to family medicine, of which hemoglobin A1c, chemistry panels, and human immunodeficiency virus and gonococcal and/or chlamydia were most frequently reported and anticipated would be used weekly. Clinicians reported 30 conditions for which they considered POCTs would be useful. Diabetes mellitus, sexually transmitted infections, and respiratory tract infections were the most often reported and were identified as benefiting diagnosis, monitoring, and treatment decisions. Conclusions: Clinicians identified a number of POCTs they viewed as being beneficial to add to their routine clinical practice, mostly to inform diagnosis and treatment planning. Some POCTs identified are available in the United States; thus, understanding barriers to implementation of these POCTs in primary care settings is necessary to optimize adoption. PMID- 29333107 TI - Cryptography Standards in Quantum Time: New wine in old wineskin? PMID- 29333105 TI - Measures and Metrics for Feasibility of Proof-of-Concept Studies With Human Immunodeficiency Virus Rapid Point-of-Care Technologies: The Evidence and the Framework. AB - Objective: Pilot (feasibility) studies form a vast majority of diagnostic studies with point-of-care technologies but often lack use of clear measures/metrics and a consistent framework for reporting and evaluation. To fill this gap, we systematically reviewed data to (a) catalog feasibility measures/metrics and (b) propose a framework. Methods: For the period January 2000 to March 2014, 2 reviewers searched 4 databases (MEDLINE, EMBASE, CINAHL, Scopus), retrieved 1441 citations, and abstracted data from 81 studies. We observed 2 major categories of measures, that is, implementation centered and patient centered, and 4 subcategories of measures, that is, feasibility, acceptability, preference, and patient experience. We defined and delineated metrics and measures for a feasibility framework. We documented impact measures for a comparison. Findings: We observed heterogeneity in reporting of metrics as well as misclassification and misuse of metrics within measures. Although we observed poorly defined measures and metrics for feasibility, preference, and patient experience, in contrast, acceptability measure was the best defined. For example, within feasibility, metrics such as consent, completion, new infection, linkage rates, and turnaround times were misclassified and reported. Similarly, patient experience was variously reported as test convenience, comfort, pain, and/or satisfaction. In contrast, within impact measures, all the metrics were well documented, thus serving as a good baseline comparator. With our framework, we classified, delineated, and defined quantitative measures and metrics for feasibility. Conclusions: Our framework, with its defined measures/metrics, could reduce misclassification and improve the overall quality of reporting for monitoring and evaluation of rapid point-of-care technology strategies and their context-driven optimization. PMID- 29333108 TI - Bipolar Disorder in Primary Care: Integrated Care Experiences. AB - Primary care clinics are increasingly implementing collaborative care models to care for patients with psychiatric illnesses in primary care. The evidence base for the effectiveness of collaborative care has largely been derived from the care of patients with depression or anxiety disorders, although psychiatrists working in primary care may encounter patients with illnesses other than depression or anxiety disorder, notably bipolar disorder. Patients with bipolar disorder report having received treatment in primary care in equal proportions as those in specialty care settings over the past 12 months, although quality of care is lower in primary care than in specialty care settings. For patients already presenting to primary care, collaborative care is one population-based care model that may increase the proportion of individuals with bipolar disorder who are exposed to high-quality psychiatric care, such as appropriate medication treatment and laboratory monitoring. The primary care setting may even present unexpected strengths in caring for patients with bipolar disorder. Solutions to barriers to expanding the scope of collaborative care to include patients with bipolar disorder may apply to the care of patients with other complex disorders in the primary care setting. PMID- 29333109 TI - Ultrasonographic Findings of Renal Cell Carcinomas Associated with Xp11.2 Translocation/TFE3 Gene Fusion. AB - Objective: This study was to investigate the features of renal carcinomas associated with Xp11.2 translocations/TFE3 gene fusions (Xp11.2-RCC) on conventional ultrasound (US) and contrast-enhanced ultrasound (CEUS). Methods: US and CEUS features of twenty-two cases with histopathologically proven Xp11.2-RCC were retrospectively reviewed. Results: 22 patients (11 males, 11 females) were included in this study, with a mean age of 28.3 +/- 20.4 years. Eight tumors (36.3%, 8/22) were in left kidney, and 14 tumors (63.7%, 14/22) were in right kidney. All tumors (100%, 22/22) were mixed echogenicity type. 13 tumors (59.1%, 13/22) presented small dotted calcifications. The boundary of 14 tumors (63.6%, 14/22) was sharp and the other 8 tumors' (36.4%, 8/22) boundary was blurry. By CEUS, in early phase, the solid element of all tumors showed obvious enhancement. In delayed phase, 13 tumors showed hypoenhancement, seven tumors showed isoenhancement, and 2 tumors showed hyperenhancement. There were irregular nonenhancement areas in all tumors inside. Conclusions: By US and CEUS, when children and adolescents were found to have hyperechoic mixed tumor in kidney with sharp margin and calcification, and the tumors showed obvious enhancement and hypoenhancement with irregular nonenhancement areas in the tumor in early phase and delayed phase, respectively, Xp11.2-RCC should be suspected. PMID- 29333110 TI - F-18 FP-CIT PET in Multiple System Atrophy of the Cerebellar Type: Additional Role in Treatment. AB - We evaluated the difference in the status of dopamine transporters (DATs) depending on Parkinsonism, cerebellar, and autonomic features using F-18 FP-CIT positron emission tomography (PET) in multiple system atrophy with cerebellar ataxia (MSA-C). We also assessed whether the DAT PET could be useful in the management of MSA-C. Forty-nine patients who were clinically diagnosed as possible to probable MSA-C were included. Based on the F-18 FP-CIT PET results, patients were classified into normal (n = 25) and abnormal (n = 24) scan groups. There were statistically significant differences in rigidity, bradykinesia, postural instability, asymmetry, and specific uptake ratio (SUR) between the two groups but no significant differences in tremor and cerebellar/autonomic symptoms. Dopaminergic medications were administered to 22 patients. All seven patients with normal scans showed no change, while 10 of the 15 patients with abnormal scans showed clinical improvement. There was a trend of a negative correlation between levodopa equivalent dose and SUR, but it was not statistically significant. DAT imaging, such as F-18 FP-CIT PET, may be useful in predicting the response to dopaminergic medication regardless of cerebellar/autonomic symptoms in MSA-C. In addition to being used for the diagnosis of the disease, it may be used as a treatment decision index. PMID- 29333112 TI - Integrating Occupational Therapy Specific Assessments in Practice: Exploring Practitioner Experiences. AB - Background: Occupational therapists sometimes find it challenging to integrate client-centered and occupational therapy specific assessments in practice. The aim of this study was to explore the use of occupational therapy specific assessments such as the Assessment of Motor and Process Skills (AMPS) among occupational therapists in Sweden and Japan. Methods: Interviews and qualitative thematic analyses were utilized. Findings: Four themes are reported: (1) use it or lose it, (2) simply no space until after hours, (3) biggest barriers can be colleagues, and (4) being more specific: communication. Conclusion: In keeping with previous studies, occupational therapists often find it challenging to implement client-centered and occupation-based assessment tools into practice. However, more work is needed to understand how best practices can be incorporated into a changing occupational therapy daily practice. PMID- 29333113 TI - Grating Oriented Line-Wise Filtration (GOLF) for Dual-Energy X-ray CT. AB - In medical X-ray Computed Tomography (CT), the use of two distinct X-ray source spectra (energies) allows dose-reduction and material discrimination relative to that achieved with only one source spectrum. Existing dual-energy CT methods include source kVp-switching, double-layer detection, dual-source gantry, and two pass scanning. Each method suffers either from strong spectral correlation or patient-motion artifacts. To simultaneously address these problems, we propose to improve CT data acquisition with the Grating Oriented Line-wise Filtration (GOLF) method, a novel X-ray filter that is placed between the source and patient. GOLF uses a combination of absorption and filtering gratings that are moved relative to each other and in synchronization with the X-ray tube kVp-switching process and/or the detector view-sampling process. Simulation results show that GOLF can improve the spectral performance of kVp-switching to match that of dual-source CT while avoiding patient motion artifacts and dual imaging chains. Although significant flux is absorbed by this pre-patient filter, the proposed GOLF method is a novel path for cost-effectively extracting dual-energy or multi-energy data and reducing radiation dose with or without kVp switching. PMID- 29333111 TI - Diet, Gut Microbiota, and Colorectal Cancer Prevention: A Review of Potential Mechanisms and Promising Targets for Future Research. AB - Diet plays an important role in the development of colorectal cancer. Emerging data have implicated the gut microbiota in colorectal cancer. Diet is a major determinant for the gut microbial structure and function. Therefore, it has been hypothesized that alterations in gut microbes and their metabolites may contribute to the influence of diet on the development of colorectal cancer. We review several major dietary factors that have been linked to gut microbiota and colorectal cancer, including major dietary patterns, fiber, red meat and sulfur, and obesity. Most of the epidemiologic evidence derives from cross-sectional or short-term, highly controlled feeding studies that are limited in size. Therefore, high-quality large-scale prospective studies with dietary data collected over the life course and comprehensive gut microbial composition and function assessed well prior to neoplastic occurrence are critically needed to identify microbiome-based interventions that may complement or optimize current diet-based strategies for colorectal cancer prevention and management. PMID- 29333114 TI - Carcinogenesis Induced by Low-dose Radiation. AB - Background: Although the effects of high dose radiation on human cells and tissues are relatively well defined, there is no consensus regarding the effects of low and very low radiation doses on the organism. Ionizing radiation has been shown to induce gene mutations and chromosome aberrations which are known to be involved in the process of carcinogenesis. The induction of secondary cancers is a challenging long-term side effect in oncologic patients treated with radiation. Medical sources of radiation like intensity modulated radiotherapy used in cancer treatment and computed tomography used in diagnostics, deliver very low doses of radiation to large volumes of healthy tissue, which might contribute to increased cancer rates in long surviving patients and in the general population. Research shows that because of the phenomena characteristic for low dose radiation the risk of cancer induction from exposure of healthy tissues to low dose radiation can be greater than the risk calculated from linear no-threshold model. Epidemiological data collected from radiation workers and atomic bomb survivors confirms that exposure to low dose radiation can contribute to increased cancer risk and also that the risk might correlate with the age at exposure. Conclusions: Understanding the molecular mechanisms of response to low dose radiation is crucial for the proper evaluation of risks and benefits that stem from these exposures and should be considered in the radiotherapy treatment planning and in determining the allowed occupational exposures. PMID- 29333115 TI - Clinical Significance of Fluorine-18-fluorodeoxyglucose Positron Emission Tomography/computed Tomography in the Follow-up of Colorectal Cancer: Searching off Approaches Increasing Specificity for Detection of Recurrence. AB - Background: Nearly 40% of colorectal cancer (CRC) recurs within 2 years after resection of primary tumor. Imaging with fluorine-18-fluorodeoxyglucose (l8F-FDG) positron emission tomography/computed tomography (PET/CT) is the most recent modality and often applied for the evaluation of metastatic spread during the follow-up period. Our goal was to study the diagnostic importance of 18F-FDG PET/CT data of maximum standardized uptake value (SUVmax), total lesion glycolysis (TLG) and the difference of SUVmax on dual-time imaging in CRC. Patients and methods: We examined the SUVmax value of lesions on control or restaging 18F-FDG-PET/CT of 53 CRC patients. All lesions with increased SUVmax values were confirmed by colonoscopy or histopathology. We compared PET/CT results with conventional imaging modalities (CT, MRI) and tumor markers (carbohydrate antigen 19-9 [Ca 19-9], carcinoembryonic antigen [CEA]). Results: Mean SUVmax was 6.9 +/- 5.6 in benign group, 12.7 +/- 6.1 in malignant group. Mean TLG values of malignant group and benign group were 401 and 148, respectively. 18F-FDG-PET/CT was truely positive in 48% of patients with normal Ca 19-9 or CEA levels and truely negative in 10% of cases with elevated Ca 19-9 or CEA. CT or MRI detected suspicious malignancy in 32% of the patients and 18F FDG-PET/CT was truely negative in 35% of these cases. We found the most important and striking statistical difference of TLG value between the groups with benign and recurrent disease. Conclusions: Although SUVmax is a strong metabolic parameter (p = 0.008), TLG seems to be the best predictor in recurrence of CRC (p = 0.001); both are increasing the specificity of 18F-FDG-PET/CT. PMID- 29333116 TI - Is there a Role for Contrast-enhanced Ultrasound in the Detection and Biopsy of MRI Only Visible Breast Lesions? AB - Background: This study aimed to evaluate the feasibility of contrast-enhanced ultrasound (CEUS) and CEUS-guided interventions in the diagnostics of MRI visible targeted US occult breast lesions. Patients and methods: This retrospective study examined 10 females with 10 occult, MRI only detected breast lesions between July 2014 and April 2017. Targeted second look US followed by CEUS with 2.4 ml of SonoVue(r) were performed for all of the lesions. After positive CEUS localization the same dose was repeated for confirmation and CEUS-guided interventions were performed. Results: MRI revealed 8 mass lesions with a mean size of 9 mm (range 5-16 mm) and 2 non-mass enhancing lesions of 10 and 20 mm in largest diameters. Targeted US revealed no morphological correlate for the lesions. Five out of 10 lesions (50%) were visible on CEUS. CEUS-guided core biopsy was performed on 4 lesions and 1 was marked with a clip for later surgical removal. Histopathological analysis confirmed 4 of them to be malignant. Three out of 5 nonvisible lesions on CEUS underwent MRI-guided interventions, 1 lesion was scheduled for follow-up as it was non-amenable for MRI biopsy, and 1 lesion was biopsied under US-guidance. Three of these nonvisible lesions on CEUS were confirmed to be malignant. Conclusions: Based on our preliminary results, CEUS is a feasible tool for detecting many MRI only visible breast lesions, resulting in a more cost effective and less time-consuming practice. It is a more convenient alternative than MRI guided biopsy and has the potential to be included in the diagnostic algorithm which evaluates MRI only visible breast lesions. PMID- 29333117 TI - Baseline Tumor Lipiodol Uptake after Transarterial Chemoembolization for Hepatocellular Carcinoma: Identification of a Threshold Value Predicting Tumor Recurrence. AB - Background: The aim of the study was to evaluate the association between baseline Lipiodol uptake in hepatocellular carcinoma (HCC) after transarterial chemoembolization (TACE) with early tumor recurrence, and to identify a threshold baseline uptake value predicting tumor response. Patients and methods: A single institution retrospective database of HCC treated with Lipiodol-TACE was reviewed. Forty-six tumors in 30 patients treated with a Lipiodol-chemotherapy emulsion and no additional particle embolization were included. Baseline Lipiodol uptake was measured as the mean Hounsfield units (HU) on a CT within one week after TACE. Washout rate was calculated dividing the difference in HU between the baseline CT and follow-up CT by time (HU/month). Cox proportional hazard models were used to correlate baseline Lipiodol uptake and other variables with tumor response. A receiver operating characteristic (ROC) curve was used to identify the optimal threshold for baseline Lipiodol uptake predicting tumor response. Results: During the follow-up period (mean 5.6 months), 19 (41.3%) tumors recurred (mean time to recurrence = 3.6 months). In a multivariate model, low baseline Lipiodol uptake and higher washout rate were significant predictors of early tumor recurrence (P = 0.001 and < 0.0001, respectively). On ROC analysis, a threshold Lipiodol uptake of 270.2 HU was significantly associated with tumor response (95% sensitivity, 93% specificity). Conclusions: Baseline Lipiodol uptake and washout rate on follow-up were independent predictors of early tumor recurrence. A threshold value of baseline Lipiodol uptake > 270.2 HU was highly sensitive and specific for tumor response. These findings may prove useful for determining subsequent treatment strategies after Lipiodol TACE. PMID- 29333118 TI - The Relationship between Chondromalacia Patella, Medial Meniscal Tear and Medial Periarticular Bursitis in Patients with Osteoarthritis. AB - Background: This study investigated the presence of bursitis in the medial compartment of the knee (pes anserine, semimembranosus-tibial collateral ligament, and medial collateral ligament bursa) in osteoarthritis, chondromalacia patella and medial meniscal tears. Patients and methods: Radiological findings of 100 patients undergoing magnetic resonance imaging with a preliminary diagnosis of knee pain were retrospectively evaluated by two radiologists. The first radiologist assessed all patients in terms of osteoarthritis, chondromalacia patella and medial meniscal tear. The second radiologist was blinded to these results and assessed the presence of bursitis in all patients. Results: Mild osteoarthritis (grade I and II) was determined in 55 patients and severe osteoarthritis (grade III and IV) in 45 cases. At retropatellar cartilage evaluation, 25 patients were assessed as normal, while 29 patients were diagnosed with mild chondromalacia patella (grade I and II) and 46 with severe chondromalacia patella (grade III and IV). Medial meniscus tear was determined in 51 patients. Severe osteoarthritis and chondromalacia patella were positively correlated with meniscal tear (p < 0.001 and p = 0.018, respectively). Significant correlation was observed between medial meniscal tear and bursitis in the medial compartment (p = 0.038). Presence of medial periarticular bursitis was positively correlated with severity of osteoarthritis but exhibited no correlation with chondromalacia patella (p = 0.023 and p = 0.479, respectively). Evaluation of lateral compartment bursae revealed lateral collateral ligament bursitis in 2 patients and iliotibial bursitis in 5 patients. Conclusions: We observed a greater prevalence of bursitis in the medial compartment of the knee in patients with severe osteoarthritis and medial meniscus tear. PMID- 29333119 TI - Phytotherapeutics Oridonin and Ponicidin show Additive Effects Combined with Irradiation in Pancreatic Cancer in Vitro. AB - Background: Chemoradiation of locally advanced non-metastatic pancreatic cancer can lead to secondary operability by tumor mass reduction. Here, we analyzed radiomodulating effects of oridonin and ponicidin in pancreatic cancer in vitro. Both agents are ent-kaurane diterpenoids, extracted from Isodon rubescens, a plant that is well known in Traditional Chinese Medicine. Cytotoxic effects have recently been shown in different tumor entities for both agents. Materials and methods: Pancreatic cancer cell lines AsPC-1, BxPC-3, Panc-1 and MIA PaCa-2 were pretreated with oridonin or ponicidin and irradiated with 2 Gy to 6 Gy. Long-term survival was determined by clonogenic assay. Cell cycle effects and intensity of gammaH2AX as indicator for DNA double-strand breaks were investigated by flow cytometry. Western blotting was used to study the DNA double-strand break repair proteins Ku70, Ku80 and XRCC4. Results: Oridonin and ponicidin lead to a dose dependent reduction of clonogenic survival and an increase in gammaH2AX. Combined with irradiation we observed additive effects and a prolonged G2/M-arrest. No relevant changes in the levels of the DNA double-strand break repair proteins were detected. Conclusions: Pretreatment with oridonin or ponicidin followed by irradiation lead to an additional reduction in survival of pancreatic cancer cells in vitro, presumably explained by an induced prolonged G2/M-arrest. Both agents seem to induce DNA double-strand breaks but do not interact with the non homologous end joining (NHEJ) pathway. PMID- 29333120 TI - Focused Transhepatic Electroporation Mediated by Hypersaline Infusion through the Portal Vein in Rat Model. Preliminary Results on Differential Conductivity. AB - Background: Spread hepatic tumours are not suitable for treatment either by surgery or conventional ablation methods. The aim of this study was to evaluate feasibility and safety of selectively increasing the healthy hepatic conductivity by the hypersaline infusion (HI) through the portal vein. We hypothesize this will allow simultaneous safe treatment of all nodules by irreversible electroporation (IRE) when applied in a transhepatic fashion. Material and methods: Sprague Dawley (Group A, n = 10) and Athymic rats with implanted hepatic tumour (Group B, n = 8) were employed. HI was performed (NaCl 20%, 3.8 mL/Kg) by trans-splenic puncture. Deionized serum (40 mL/Kg) and furosemide (2 mL/Kg) were simultaneously infused through the jugular vein to compensate hypernatremia. Changes in conductivity were monitored in the hepatic and tumour tissue. The period in which hepatic conductivity was higher than tumour conductivity was defined as the therapeutic window (TW). Animals were monitored during 1-month follow-up. The animals were sacrificed and selective samples were used for histological analysis. Results: The overall survival rate was 82.4% after the HI protocol. The mean maximum hepatic conductivity after HI was 2.7 and 3.5 times higher than the baseline value, in group A and B, respectively. The mean maximum hepatic conductivity after HI was 1.4 times higher than tumour tissue in group B creating a TW to implement selective IRE. Conclusions: HI through the portal vein is safe when the hypersaline overload is compensated with deionized serum and it may provide a TW for focused IRE treatment on tumour nodules. PMID- 29333121 TI - Minimally Invasive Electrochemotherapy Procedure for Treating Nasal Duct Tumors in Dogs using a Single Needle Electrode. AB - Background: Nasal cavity tumors are usually diagnosed late, when they already have infiltrated adjacent tissues thus requiring very aggressive treatments with serious side effects. Here we use electrochemotherapy (ECT), a well demonstrated treatment modality for superficial tumors. Materials and methods: In the case of deep-seated tumors, the main limitation of ECT is reaching the tumor with an appropriate electric field. To overcome this limitation we introduce the single needle electrode (SiNE), a minimally invasive device that can deliver an appropriate electric field with a simple procedure. Twenty-one canine patients with spontaneous tumors were selected, eleven were treated using the SiNE with ECT, and ten with surgery plus adjuvant chemotherapy as a control group. Results: In the SiNE group, 27% achieved a complete response, 64% had a partial response, and 9% had a stable disease. This means that 91% of objective responses were obtained. The mean overall survival was 16.86 months (4-32 months, median 16.5 months), with a survival rate significantly higher (p = 0.0008) when compared with control group. The only side effect observed was the inflammation of the treated nasal passage, which was controlled with corticosteroid therapy for one week. One year after the treatment, 60% of the canine of the SiNE group vs. 10% of the control group remained alive, and after the 32 months follow-up, the survival rate were 30% and 0%, respectively. Conclusions: ECT with the SiNE can be safely used in canine to treat nasal tumors with encouraging results. PMID- 29333122 TI - Metformin Enhanced in Vitro Radiosensitivity Associates with G2/M Cell Cycle Arrest and Elevated Adenosine-5'-monophosphate-activated Protein Kinase Levels in Glioblastoma. AB - Background: It is hypothesized that metabolism plays a strong role in cancer cell regulation. We have recently demonstrated improved progression-free survival in patients with glioblastoma who received metformin as an antidiabetic substance during chemoradiation. Although metformin is well-established in clinical use the influence of metformin in glioblastoma is far from being understood especially in combination with other treatment modalities such as radiation and temozolomide. Materials and Methods: In this study, we examined the influence of metformin in combinations with radiation and temozolomide on cell survival (clonogenic survival), cell cycle (routine flow cytometric analysis, FACScan), and phosphorylated Adenosine-5'-monophosphate-activated protein kinase (AMPK) (Phopho AMPKalpha1 - ELISA) levels in glioblastoma cell lines LN18 and LN229. Results: Metformin and temozolomide enhanced the effectiveness of photon irradiation in glioblastoma cells. Cell toxicity was more pronounced in O6-methylguanine DNA methyltransferase (MGMT) promoter non-methylated LN18 cells. Induction of a G2/M phase cell cycle block through metformin and combined treatments was observed up to 72 h. These findings were associated with elevated levels of activated AMPK levels in LN229 cells but not in LN18 cells after irradiation, metformin, and temozolomide treatment. Conclusions: Radiosensitizing effects of metformin on glioblastoma cells treated with irradiation and temozolomide in vitro coincided with G2/M arrest and changes in pAMPK levels. PMID- 29333123 TI - Evaluation of Deformable Image Registration (DIR) Methods for Dose Accumulation in Nasopharyngeal Cancer Patients during Radiotherapy. AB - Introduction: Deformable image registration (DIR) is used to modify structures according to anatomical changes for observing the dosimetric effect. In this study, megavoltage computed tomography (MVCT) images were used to generate cumulative doses for nasopharyngeal cancer (NPC) patients by various DIR methods. The performance of the multiple DIR methods was analysed, and the impact of dose accumulation was assessed. Patients and methods: The study consisted of five NPC patients treated with a helical tomotherapy unit. The weekly MVCT images at the 1st, 6th, 11th, 16th, 21st, 26th, and 31st fractions were used to assess the dose accumulation by the four DIR methods. The cumulative dose deviations from the initial treatment plan were analysed, and correlations of these variations with the anatomic changes and DIR methods were explored. Results: The target dose received a slightly different result from the initial plan at the end of the treatment. The organ dose differences increased as the treatment progressed to 6.8% (range: 2.2 to 10.9%), 15.2% (range: -1.7 to 36.3%), and 6.4% (range: -1.6 to 13.2%) for the right parotid, the left parotid, and the spinal cord, respectively. The mean uncertainty values to estimate the accumulated doses for all the DIR methods were 0.21 +/- 0.11 Gy (target dose), 1.99 +/- 0.76 Gy (right parotid), 1.19 +/- 0.24 Gy (left parotid), and 0.41 +/- 0.04 Gy (spinal cord). Conclusions: Accuracy of the DIR methods affects the estimation of dose accumulation on both the target dose and the organ dose. The DIR methods provide an adequate dose estimation technique for observation as a result of inter fractional anatomic changes and are beneficial for adaptive treatment strategies. PMID- 29333124 TI - Long Term Results of Radiotherapy in Vulvar Cancer Patients in Slovenia between 1997-2004. AB - Background: The aim of this retrospective single institution study was to analyse long term results of vulvar cancer treatment with conventional 2D radiotherapy in Slovenia between years 1997-2004. Patients and methods: Fifty-six patients, median age 74.4 years +/- 9.7 years, mainly stage T2 or T3, were included in the study. All patients were treated with radiotherapy, which was combined with surgery (group A), used as the primary treatment (group B) or at the time of relapse (group C). Chemotherapy was added in some patients. Histology, grade, lymph node status, details of surgery, radiation dose to the primary tumour, inguinofemoral and pelvic area as well as local control (LC) and survival were evaluated. Results: Overall survival (OS), disease specific survival (DSS) and LC rates at 10-years for all patients were as follows: 22.7%, 34.5% and 41.1%, respectively. The best 10-years results of the treatment were achieved in the primary operated patients treated with adjuvant radiotherapy +/-chemotherapy (OS 31.9%, DSS 40.6% and LC 47.6%). Positive lymph nodes had a strong influence on LC. In case of positive nodes LC decreased by 60% (p = 0.03) and survival decreased by 50% (p = 0.2). There was a trend to a better LC with higher doses >= 54.0 Gy (p = 0.05). Conclusions: The best treatment option for patients with advanced vulvar cancer is combined treatment with surgery and radiotherapy +/- chemotherapy, if feasible. Radiotherapy with the dose of >= 54.0 Gy should be considered to achieve better LC if positive adverse factors are present. PMID- 29333125 TI - Association between SLC19A1 Gene Polymorphism and High Dose Methotrexate Toxicity in Childhood Acute Lymphoblastic Leukaemia and Non Hodgkin Malignant Lymphoma: Introducing a Haplotype based Approach. AB - Background: We investigated the clinical relevance of SLC 19A1 genetic variability for high dose methotrexate (HD-MTX) related toxicities in children and adolescents with acute lymphoblastic leukaemia (ALL) and non Hodgkin malignant lymphoma (NHML). Patients and methods: Eighty-eight children and adolescents with ALL/NHML were investigated for the influence of SLC 19A1 single nucleotide polymorphisms (SNPs) and haplotypes on HD-MTX induced toxicities. Results: Patients with rs2838958 TT genotype had higher probability for mucositis development as compared to carriers of at least one rs2838958 C allele (OR 0.226 (0.071-0.725), p < 0.009). Haplotype TGTTCCG (H4) statistically significantly reduced the risk for the occurrence of adverse events during treatment with HD MTX (OR 0.143 (0.023-0.852), p = 0.030). Conclusions: SLC 19A1 SNP and haplotype analysis could provide additional information in a personalized HD-MTX therapy for children with ALL/NHML in order to achieve better treatment outcome. However further studies are needed to validate the results. PMID- 29333126 TI - Impact on Radiation Dose and Volume V57 Gy of the Brain on Recurrence and Survival of Patients with Glioblastoma Multiformae. AB - Background: The aim of the study was to analyze impact of irradiated brain volume V57 Gy (volume receiving 57 Gy and more) on time to progression and survival of patients with glioblastoma. Patients and methods: Dosimetric analysis of treatment plan data has been performed on 70 patients with glioblastoma, treated with postoperative radiochemotherapy with temozolomide, followed by adjuvant temozolomide. Patients were treated with 2 different methods of definition of treatment volumes and prescription of radiation dose. First group of patients has been treated with one treatment volume receiving 60 Gy in 2 Gy daily fraction (31 patients) and second group of the patients has been treated with "cone-down" technique, which consisted of two phases of treatment: the first phase of 46 Gy in 2 Gy fraction followed by "cone-down" boost of 14 Gy in 2 Gy fraction (39 patients). Quantification of V57 Gy and ratio brain volume/V57Gy has been done. Average values of both parameters have been taken as a threshold value and patients have been split into 2 groups for each parameter (values smaller/ lager than threshold value). Results: Mean value for V57 Gy was 593.39 cm3 (range 166.94 to 968.60 cm3), mean value of brain volume has was 1332.86 cm3 (range 1047.00 to 1671.90 cm3) and mean value of brain-to-V57Gy ratio was 2.46 (range 1.42 to 7.67). There was no significant difference between two groups for both V57 Gy and ratio between brain volume and V57 Gy. Conclusions: Irradiated volume with dose 57 Gy or more (V57 Gy) and ration between whole brain volume and 57 Gy had no impact on time to progression and survival of patients with glioblastoma. PMID- 29333127 TI - Quality Assurance Procedures based on Dosimetric, Gamma Analysis as a Fast Reliable Tool for Commissioning Brachytherapy Treatment Planning Systems. AB - Background: Fast and easily repeatable methods for commissioning procedures for brachytherapy (BT) treatment planning systems (TPS) are needed. Radiochromic film dosimetry with gamma analysis is widely used in external beam quality assurance (QA) procedures and planar film dosimetry is also increasingly used for verification of the dose distribution in BT applications. Using the gamma analysis method for comparing calculated and measured dose data could be used for commissioning procedures of the newly developed TG-186 and MBDCA calculation algorithms. The aim of this study was dosimetric verification of the calculation algorithm used in TPS when the CT/MRI ring applicator is used. Materials and methods: Ring applicators with 26 and 30 mm diameters and a 60 mm intra-uterine tube with 60 degrees angle were used for verification. Gafchromic(r) EBT films were used as dosimetric media. Dose grids, corresponding to each plane (dosimetric film location), were exported from the TPS as a raw data. Gafchromic(r) films were digitized after irradiation. gamma analysis of the data were performed using the OMNI Pro I'mRT(r) system, as recommended by the AAPM TG 119 rapport criterion for gamma analysis of 3%, 3 mm and a level of 95%. Results: For the 26 mm and 30 mm rings, the average gamma ranged, respectively, from 0.1 to 0.44 and from 0.1 to 0.27. In both cases, 99% of the measured points corresponded with the calculated data. Conclusions: This analysis showed excellent agreement between the dose distribution calculated with the TPS and the doses measured by Gafchromic films. This finding confirms the viability of using film dosimetry in BT. PMID- 29333128 TI - In vitro transfection of anti-tumor miR-101 induces BIM, a pro-apoptotic protein, expression in acute myeloid leukemia (AML). AB - Acute myeloid leukemia (AML) frequently relapses after initial treatment, though it is possible that drug resistance occurs. Hence, it seems necessary to develop novel therapies such as gene therapy specifically via miRNA transfection. MicroRNA-101 has been considered as a tumor suppressor in different types of cancer. It is demonstrated that exogenous miR-101 transfection is associated with decreased viability in AML in this paper. Besides, the increase of pro-apoptotic protein BIM expression in both mRNA and protein level has been illustrated. The recent findings provide an insight into the novel function of miR-101 in AML by activating BIM as an important mediator in intrinsic apoptosis pathways. Generally, miR-101 has been considered as a therapeutic target in our data and might have a valuable role in AML. PMID- 29333129 TI - The predictive value of pre- and post-induction chemotherapy plasma EBV DNA level and tumor volume for the radiosensitivity of locally advanced nasopharyngeal carcinoma. AB - This study was dedicated to investigate the predictive value of pre- and post induction chemotherapy plasma EBV (Epstein-Barr Virus) DNA level and tumor volume for the radiosensitivity of locally advanced NPC. 129 previously untreated locally advanced NPC patients were enrolled. Plasma EBV-DNA copy number and tumor volume was detected before and after induction chemotherapy. The tumor volume was also measured after radiotherapy. Among 129 patients, 98 were positive for EBV DNA. The residual gross target volume of the primary tumor (GTVnx) and GTVnd after radiotherapy was positively correlated with post-induction chemotherapy EBV copy number (rho=0.357, P<0.001; rho=0.356, P<0.001, respectively). Univariate logistic regression analyses showed that the AUC of ROC curves of post-induction chemotherapy tumor volume, tumor regression rate before and after induction chemotherapy, post-induction EBV copy number, EBV decrease rate for predicting no residual nasopharyngeal tumor were 0.859, 0.782, 0.678 and 0.657, respectively. Multivariate logistic analyses showed that T stage, post-induction chemotherapy EBV copy number and tumor volume were independent predictors for no residual nasopharyngeal tumor after radiotherapy. The changes in plasma EBV DNA and tumor volume during treatment could be used to predict the sensitivity of locally advanced NPC patients in response to intensity-modulated radiation therapy (IMRT). PMID- 29333130 TI - An in silico approach in predicting the possible mechanism involving restoration of wild-type p53 functions by small molecular weight compounds in tumor cells expressing R273H mutant p53. AB - R273H mutant p53 is a DNA-contact mutant that renders p53 dysfunctional due to a single substitution of Arg273 for His273. Rescuing R273 mutant p53 implies that a competent molecule would have to bind to the site of DNA-contact hot spots to complement the loss of contact with the DNA-binding domain. Here, curcumin, flavokawain B, and alpinetin were docked against the crystal structure of R273H mutant p53 in silico. Consequently, all the compounds bind to the cavity of R273H mutant p53 with a dissociation constant estimated to have 36.57, 70.77, and 75.11 uM for curcumin, flavokawain B, and alpinetin, respectively. Subsequently, each molecule was able to bind to the R273H mutant p53 by interacting with the DNA contact hot spot Arg248 and mutant R273H, thereby compensating for the loss of direct contact with the DNA-binding domain. Furthermore, all the molecules were able to induce a direct contact with the consensus site of the DNA binding domain, thus maintaining DNA-contact residues with the DNA. The present findings offer preliminary indirect supporting evidence that small molecular weight compounds may certainly rescue DNA-contact mutant p53, which may lay a foundation for designing a competent and effective molecule capable of rescuing mutant p53 in tumor cells expressing R273H mutant p53. PMID- 29333131 TI - miR-494 protects pancreatic beta-cell function by targeting PTEN in gestational diabetes mellitus. AB - Gestational diabetes mellitus (GDM) is one of the most common pregnancy complications characterized by insulin resistance and pancreatic beta-cell dysfunction. Increasing evidence suggests that microRNAs (miRNAs) play key roles in the diverse types of diabetes, including GDM. However, the underlying mechanisms remain largely unknown. The purpose of this study is to investigate the role of microRNAs in GDM. The microarray data of dysregulated miRNAs in blood and placenta was retrieved in the GEO dataset under the accession number GSE19649. Quantitative reverse transcription PCR (qRT-PCR) was performed to analyze the expression levels of miR-494 in peripheral blood from twenty pairs of gestational diabetes (GDM) women and healthy women. Then, we investigated the effects of miR-494 on the insulin secretion of pancreatic beta-cells. Moreover, the role of this miR-494 in regulating the proliferation and apoptosis of pancreatic beta-cells were determined by MTT assay and flow cytometry, respectively in INS1 cells transfected with a miR-494 mimic or inhibitor. In addition, the direct target of miR-494 was confirmed using 3' untranslated region (UTR) luciferase reporter assay. Our data demonstrated that the miR-494 level was significantly decreased in the blood of GDM patients, and the low level was associated with a high concentration of blood glucose. Furthermore, overexpression of miR-494 improved pancreatic beta-cell dysfunction by enhancing insulin secretion and total insulin content, inducing cell proliferation, and inhibiting cell apoptosis, whereas miR-494 knockdown exhibited decreased insulin secretion and proliferation, as well as stimulated apoptosis. In addition, phosphatase and tensin homolog (PTEN) which has been shown to play a pivotal role in apoptosis, was proved to be a direct target of miR-494 in pancreatic beta cells. More importantly, siRNA-induced downregulation of PTEN reversed the effects of miR-494 knockdown on insulin secretion, cell proliferation, and apoptosis of pancreatic beta-cells. PMID- 29333132 TI - Detection of aflatoxin-producing fungi isolated from Nile tilapia and fish feed. AB - Contamination of fish by fungi and their mycotoxins poses major health concerns to human and animals. Therefore, our study was aimed to investigate Aspergillus flavus (A. flavus) infections and the levels of aflatoxins in Nile tilapia, Oreochromis niloticus (O. niloticus), and fish feed. Samples from O. niloticus and fish feed (n=25 for each) were randomly collected from private fish farms at Qena province, Egypt, during the winter season. Different Aspergillus spp. were detected in 60 % and 64 % of O. niloticus and fish feed, respectively. HPLC-based analysis revealed aflatoxin-producing activity in 75 % and 83 % of A. flavus isolates from fish and fish feed, respectively. While 96 % of O. niloticus muscles and fish feed samples were contaminated with aflatoxins, the detected levels were below the permissible limits, i.e. 20 ug/kg. Moreover, experimental infection with toxicogenic A. flavus isolates was conducted to evaluate their pathogenicity in O. niloticus. Expectedly, experimental infections of O. niloticus with A. flavus were associated with several clinical symptoms reported in naturally infected fish, e.g. yellow coloration with skin ulceration, hemorrhagic ulcerative patches on gills and skin, corneal opacity, fin rot and abdominal distention. Furthermore, aflatoxicogenic A. flavus isolates from fish were sensitive to herbal clove oil. Even though the measured levels of aflatoxin were below permissible limits, effort should be placed on further reduction of exposure to genotoxic and carcinogenic mycotoxins. PMID- 29333133 TI - Highlight report: Occupational urinary bladder cancer. PMID- 29333134 TI - Highlight report: The pseudolobule in liver fibrosis. PMID- 29333135 TI - Highlight report: Metabolomics in hepatotoxicity testing. PMID- 29333136 TI - Highlight report: The relationship of DNA copy number alterations and mRNA levels in cancer. PMID- 29333137 TI - Highlight report: Intratumoral metabolomic heterogeneity of breast cancer. PMID- 29333138 TI - Highlight report: Monitoring cytochrome P450 activities in living hepatocytes. PMID- 29333140 TI - Farewell Message from the Editor-in-Chief. PMID- 29333139 TI - A framework for an alternatives assessment dashboard for evaluating chemical alternatives applied to flame retardants for electronic applications. AB - The goal of alternatives assessment (AA) is to facilitate a comparison of alternatives to a chemical of concern, resulting in the identification of safer alternatives. A two stage methodology for comparing chemical alternatives was developed. In the first stage, alternatives are compared using a variety of human health effects, ecotoxicity, and physicochemical properties. Hazard profiles are completed using a variety of online sources and quantitative structure activity relationship models. In the second stage, alternatives are evaluated utilizing an exposure/risk assessment over the entire life cycle. Exposure values are calculated using screening-level near-field and far-field exposure models. The second stage allows one to more accurately compare potential exposure to each alternative and consider additional factors that may not be obvious from separate binned persistence, bioaccumulation, and toxicity scores. The methodology was utilized to compare phosphate-based alternatives for decabromodiphenyl ether (decaBDE) in electronics applications. PMID- 29333141 TI - Foreword of the Editor. PMID- 29333142 TI - IFCC Task Force on Chronic Kidney Disease (Integrated Project) - (TF-CKD) Special Issue. PMID- 29333143 TI - Task Force on CKD - We have Come a Long Way. AB - Chronic Kidney Disease (CKD) is an important medical condition where diagnosis, staging and monitoring is largely based on routine laboratory tests. During the last 15 years there have been many important changes in the clinical management of CKD described in key international guidelines. In order to successfully implement these guidelines, laboratories must collaborate with clinicians to provide a co-ordinated service, including accurate measurements and of creatinine and urine albumin and reporting of an estimated glomerular filtration rate (eGFR). The IFCC/WASPaLM Task Force on Chronic Kidney Disease (TF-CKD) was established in 2008 and since that time has worked to improve laboratory testing in CKD. Key aspects of the work of the TF-CKD include supporting national laboratory medicine organisations to develop CKD testing guidelines, recognition of the vital role of collaboration between laboratory and clinical organisations, the importance of accurate measurements, and endorsement of the KDIGO 2012 CKD guidelines. A key function of the TF-CKD has been to facilitate sharing and learning between countries to provide the best outcomes. PMID- 29333144 TI - Did Creatinine Standardization Give Benefits to the Evaluation of Glomerular Filtration Rate? AB - During the last decade, a lot of efforts has been made to improve the evaluation of renal functions. Measured Glomerular Filtration Rate (GFR) remains the only valuable test to confirm or confute the status of chronic kidney disease (CKD) and is recommended by Kidney Disease Global Outcomes guidelines when estimation of GFR is not reliable. However, in routine clinical practice, serum creatinine remains the one of the most prescribed biological parameters and is an undeniable factor, alone or in association with other parameters, of the estimation of GFR. Since many years, a great improvement in the creatinine measurements was realized because of the standardization of the methods and fabrication of an international standard with concentration near to physiological ones (SRM967). Standardization according to Isotopic Dilution Mass Spectrometry dramatically improves the analytical performances of creatinine assays resulting in a more accurate estimation of GFR using creatinine based equations. Indeed, the standardization of creatinine improves the analytical performance by reducing the bias and removing the influence of the interfering substances. However, biological variability of creatinine is not affected by analytical standardization and remains a limitation to the use of creatinine in some selected populations, having extreme ages or weights like children, elderly subjects, obese or malnourished populations. Standardization of creatinine assays result in a clear improvement of estimated GFR in general population but alternative methods should be used when creatinine production or metabolism is impaired. PMID- 29333145 TI - Moving Toward Standardization of Urine Albumin Measurements. AB - Measurement of urine albumin is important for detecting and monitoring kidney disease. At the present time, measurement of urine albumin is not standardized due to the lack of a reference system, which includes both a reference measurement procedure and certified reference materials. Developing a reference system will provide a means for clinical laboratory measurement procedures to become standardized and will enable successful use of uniform clinical decision points. Currently, urine albumin results vary in excess of 40% depending on which commercially available measurement procedure is utilized for measurement. Clinicians may struggle with classification of kidney disease in part due to differences in measurements from lack of agreement among laboratory methodologies employed when assessing urine albumin concentrations. This report focuses on current findings in urine albumin testing, highlights important measurement and reporting considerations, and presents strategies for developing a reference measurement procedure to enable standardization of urine albumin measurements. PMID- 29333146 TI - Cystatin C is Indispensable for Evaluation of Kidney Disease. AB - The present minireview of the place of cystatin C in clinical medicine emphasizes, and discuss the evidence, that cystatin C-based GFR-estimating equations do not require the use of vague terms like race and sex, that cystatin C-based GFR-esti mating equations are useful for both children and adults, including the elderly, that the best GFR-estimation requires simultaneous use of both cystatin C- and creatinine-based equations, that cystatin C-based GFR estimating equations are superior to creatinine-based equations in predicting end stage renal disease, cardiovascular manifestations, hospitalisation and death, and, finally that cystatin C is required to diagnose the new syndrome "Shrunken Pore Syndrome" with its high mortality and morbidity, even in the absence of reduced GFR. When automated laboratory equipment is available, the cost of cystatin C is comparable to that of enzymatically determined creatinine. The conclusion is that cystatin C should be used at least as often as creatinine in clinical medicine. PMID- 29333147 TI - Novel Filtration Markers for GFR Estimation. AB - Creatinine-based glomerular filtration rate estimation (eGFRcr) has been improved and refined since the 1970s through both the Modification of Diet in Renal Disease (MDRD) Study equation in 1999 and the CKD Epidemiology Collaboration (CKD EPI) equation in 2009, with current clinical practice dependent primarily on eGFR for accurate assessment of GFR. However, researchers and clinicians have recognized limitations of relying on creatinine as the only filtration marker, which can lead to inaccurate GFR estimates in certain populations due to the influence of non-GFR determinants of serum or plasma creatinine. Therefore, recent literature has proposed incorporation of multiple serum or plasma filtration markers into GFR estimation to improve precision and accuracy and decrease the impact of non-GFR determinants for any individual biomarker. To this end, the CKD-EPI combined creatinine-cystatin C equation (eGFRcr-cys) was developed in 2012 and demonstrated superior accuracy to equations relying on creatinine or cystatin C alone (eGFRcr or eGFRcys). Now, the focus has broadened to include additional novel filtration markers to further refine and improve GFR estimation. Beta-2-microglobulin (B2M) and beta-trace-protein (BTP) are two filtration markers with established assays that have been proposed as candidates for improving both GFR estimation and risk prediction. GFR estimating equations based on B2M and BTP have been developed and validated, with the CKD-EPI combined BTP-B2M equation (eGFRBTP-B2M) demonstrating similar performance to eGFR and eGFR. Additionally, several studies have demonstrated that both B2M and BTP are associated with outcomes in CKD patients, including cardiovascular events, ESRD and mortality. This review will primarily focus on these two biomarkers, and will highlight efforts to identify additional candidate biomarkers through metabolomics-based approaches. PMID- 29333149 TI - A Summary of Worldwide National Activities in Chronic Kidney Disease (CKD) Testing. AB - Chronic kidney disease (CKD) is a major public health issue worldwide and is associated with adverse health outcomes, especially in low- and middle-income countries. In a cash limited healthcare system, guidelines that improve the efficiency of health care free up resources needed for other healthcare services. This short review presents some examples from national acitivities in CKD testing, including countries throughout the globe: Mexico in North America, Uruguay in South America, Italy in Europe, Nigeria in Africa and India in Asia. Considering the fact that treatment of CKD is cost-effective and improves outcomes, this observation argue in favor of including CKD in national guidelines and noncommunicable chronic disease (NCD) programs. This diverse example of national activities fullfil the very first step in achieving this goal. PMID- 29333148 TI - A Pathway to National Guidelines for Laboratory Diagnostics of Chronic Kidney Disease - Examples from Diverse European Countries. AB - The principal benefit of guidelines is to improve the quality of care received by patients. In the 2012 Clinical Practice Guideline for the Evaluation and Management of Chronic Kidney Disease (KDIGO) was released and it is designed to provide information and assist decision making. This review gives a brief overview of a various national CKD guidelines that rely on the newly released KDIGO guidelines. All of the included countries (France, Turkey, Norway and Croatia) are non-English speaking countries and they differ in population and socio economic aspects. Examples shown in this review may provide valuable experience for countries that are in process of creating their national CKD guidelines. PMID- 29333150 TI - Evaluation of the Correlation Coefficient of Polyethylene Glycol Treated and Direct Prolactin Results and Comparability with Different Assay System Results. AB - : The presence of Macro prolactin is a significant cause of elevated prolactin resulting in misdiagnosis in all automated systems. Poly ethylene glycol (PEG) pretreatment is the preventive process but such process includes the probability of loss of a fraction of bioactive prolactin. Surprisingly, PEG treated EQAS & IQAS samples in Cobas e 411 are found out to be correlating with direct results of at least 3 immunoassay systems and treated and untreated Cobas e 411 results are comparable by a correlation coefficient. Comparison of EQAS, IQAS and patient samples were done to find out the trueness of such correlation factor. Study with patient's results have established the correlation coefficient is valid for very small concentration of prolactin also. Materials and methods: EQAS, IQAS and 150 patient samples were treated with PEG and prolactin results of treated and untreated samples obtained from Roche Cobas e 411. 25 patient's results (treated) were compared with direct results in Advia Centaur, Architect I & Access2 systems. Statistical calculations: Correlation coefficient was obtained from trend line of the treated and untreated results. Two tailed p-value obtained from regression coefficient(r) and sample size. Results and discussion: The correlation coefficient is in the range (0.761-0.771). Reverse correlation range is (1.289-1.301). r value of two sets of calculated results were 0.995. Two tailed p- value is zero approving dismissal of null hypothesis. Conclusion: The z score of EQAS does not always assure authenticity of resultsPEG precipitation is correlated by the factor 0.761 even in very small concentrationsAbbreviationsGFCgel filtration chromatographyPEGpolyethylene glycolEQASexternal quality assurance systemM-PRLmacro prolactinPRLprolactinECLIAelectro-chemiluminescence immunoassayCLIAclinical laboratory improvement amendmentsIQASinternal quality assurance systemrregression coefficient. PMID- 29333151 TI - Lab Test Findings in the Elderly. PMID- 29333152 TI - Erratum: (1) Pediatric Obesity and Cardiometabolic Disorders: Risk Factors and Biomarkers. AB - [This corrects the article on p. 6 in vol. 28, PMID: 28439216.]. PMID- 29333153 TI - PPAR-gamma Agonists and Their Role in Primary Cicatricial Alopecia. AB - Peroxisome proliferator-activated receptor gamma (PPAR-gamma) is a ligand activated nuclear receptor that regulates the transcription of various genes. PPAR-gamma plays roles in lipid homeostasis, sebocyte maturation, and peroxisome biogenesis and has shown anti-inflammatory effects. PPAR-gamma is highly expressed in human sebaceous glands. Disruption of PPAR-gamma is believed to be one of the mechanisms of primary cicatricial alopecia (PCA) pathogenesis, causing pilosebaceous dysfunction leading to follicular inflammation. In this review article, we discuss the pathogenesis of PCA with a focus on PPAR-gamma involvement in pathogenesis of lichen planopilaris (LPP), the most common lymphocytic form of PCA. We also discuss clinical trials utilizing PPAR-agonists in PCA treatment. PMID- 29333154 TI - Whole-Exome Sequencing-Based Mutational Profiling of Hepatitis B Virus-Related Early-Stage Hepatocellular Carcinoma. AB - Background: Hepatocellular carcinoma (HCC) ranks as the third leading cause of cancer-related mortality in China with increasing incidence. This study is designed to explore early genetic changes implicated in HCC tumorigenesis and progression by whole-exome sequencing. Methods: We firstly sequenced the whole exomes of 5 paired hepatitis B virus-related early-stage HCC and peripheral blood samples, followed by gene ontological analysis and pathway analysis of the single nucleotide variants discovered. Then, the mutations of high frequency were further confirmed by Sanger sequencing. Results: We identified a mutational signature of dominant T:A>A:T transversion in early HCC and significantly enriched pathways including ECM-receptor interaction, axon guidance, and focal adhesion and enriched biological processes containing cell adhesion, axon guidance, and regulation of pH. Eight genes, including MUC16, UNC79, USH2A, DNAH17, PTPN13, TENM4, PCLO, and PDE1C, were frequently mutated. Conclusions: This study reveals a mutational profile and a distinct mutation signature of T:A>A:T transversion in early-stage HCC with HBV infection, which will enrich our understanding of genetic characteristics of the early-stage HCC. PMID- 29333155 TI - Genetic Polymorphisms: A Novel Perspective on Acute Pancreatitis. AB - Acute pancreatitis (AP) is a complex disease that results in significant morbidity and mortality. For many decades, it has compelled researchers to explore the exact pathogenesis and the understanding of the pathogenesis of AP has progressed dramatically. Currently, premature trypsinogen activation and NF kappaB activation for inflammation are two remarkable hypotheses for the mechanism of AP. Meanwhile, understanding of the influence of genetic polymorphisms has resulted in tremendous development in the understanding of the advancement of complex diseases. Now, genetic polymorphisms of AP have been noted gradually and many researchers devote themselves to this emerging area. In this review, we comprehensively describe genetic polymorphisms combined with the latest hypothesis of pathogenesis associated with AP. PMID- 29333156 TI - Intravenous Magnesium Sulphate for Analgesia after Caesarean Section: A Systematic Review. AB - Objective: To summarise the evidence for use of intravenous magnesium for analgesic effect in caesarean section patients. Background: Postcaesarean pain requires effective analgesia. Magnesium, an N-methyl-D-aspartate receptor antagonist and calcium-channel blocker, has previously been investigated for its analgesic properties. Methods: A systematic search was conducted of PubMed, Scopus, MEDLINE, Cochrane Library, and Google Scholar databases for randomised control trials comparing intravenous magnesium to placebo with analgesic outcomes in caesarean patients. Results: Ten trials met inclusion criteria. Seven were qualitatively compared after exclusion of three for unclear bias risk. Four trials were conducted with general anaesthesia, while three utilised neuraxial anaesthesia. Five of seven trials resulted in decreased analgesic requirement postoperatively and four of seven resulted in lower serial visual analogue scale scores. Conclusions: Adjunct analgesic agents are utilised to improve analgesic outcomes and minimise opioid side effects. Preoperative intravenous magnesium may decrease total postcaesarean rescue analgesia consumption with few side effects; however, small sample size and heterogeneity of methodology in included trials restricts the ability to draw strong conclusions. Therefore, given the apparent safety and efficacy of magnesium, its role as an adjunct analgesic in caesarean section patients should be further investigated with the most current anaesthetic techniques. PMID- 29333157 TI - Potential Developmental and Reproductive Impacts of Triclocarban: A Scoping Review. AB - Triclocarban (TCC) is an antimicrobial agent used in personal care products. Although frequently studied with another antimicrobial, triclosan, it is not as well researched, and there are very few reviews of the biological activity of TCC. TCC has been shown to be a possible endocrine disruptor, acting by enhancing the activity of endogenous hormones. TCC has been banned in the US for certain applications; however, many human populations, in and outside the US, exhibit exposure to TCC. Because of the concern of the health effects of TCC, we conducted a scoping review in order to map the current body of literature on the endocrine, reproductive, and developmental effects of TCC. The aim of this scoping review was to identify possible endpoints for future systematic review and to make recommendations for future research. A search of the literature until August 2017 yielded 32 relevant studies in humans, rodents, fish, invertebrates, and in vitro. Based on the robustness of the literature in all three evidence streams (human, animal, and in vitro), we identified three endpoints for possible systematic review: estrogenic activity, androgenic activity, and offspring growth. In this review, we describe the body of evidence and make recommendations for future research. PMID- 29333158 TI - Testosterone: Relationships with Metabolic Disorders in Men-An Observational Study from SPECT-China. AB - Background: The strength of associations between total testosterone (TT) and metabolic parameters may vary in different nature of population structure; however, no study has ever given this information in Chinese population, especially those without metabolic syndrome (MS). We aimed to analyze the association magnitudes between TT and multiple metabolic parameters in general Chinese men. Methods: 4309 men were recruited from SPECT-China study in 2014 2015, which was performed in 22 sites in East China. TT, weight status, and various metabolic parameters were measured. Linear and logistic regressions were used to analyze the associations. Results: Men in lower TT quartiles had worse metabolic parameters including body mass index, triglycerides, HbA1c, and HOMA-IR (all P for trend < 0.001). Body mass index (B -0.32, 95%CI -0.35 to -0.29) and obesity (OR 0.40, 95%CI 0.35-0.45) had the largest association magnitude per one SD increment in TT, while blood pressure and hypertension (OR 0.90, 95%CI 0.84 0.98) had the smallest. These associations also persisted in individuals without metabolic syndrome. Conclusions: Obesity indices had closer relationships with TT than most other metabolic measures with blood pressure the least close. These associations remained robust after adjustment for adiposity and in subjects without metabolic syndrome. PMID- 29333159 TI - Ultrasound-Guided Percutaneous Microwave Ablation for Solid Benign Thyroid Nodules: Comparison of MWA versus Control Group. AB - Background: The aim of this research is to investigate the feasibility of percutaneous ultrasound-guided microwave ablation (MWA) for benign solid thyroid nodules. Methods: Ultrasound-guided percutaneous microwave ablation was performed for 90 benign solid thyroid nodules in 75 patients. The volume changes of the nodules were evaluated before and after microwave ablation, and the cosmetic grading and clinical symptoms were assessed as well. Results: The volume of all the 90 benign thyroid nodules obviously decreased after microwave ablation at 3-, 6-, 9-, and 12-month follow-ups (p < 0.01), while that of the control group increased at the follow-up of 12 months (p < 0.01). The volume reduction rate (VRR) at 3-, 6-, 9-, and 12-month follow-ups was 55.98%, 69.31%, 76.65%, and 84.67% in the MWA group, respectively. The cosmetic problems and clinical symptoms were also improved in the MWA group. All the patients are well tolerated to the procedure. Hoarseness occurred in 2 cases (2.7%) and Horner syndrome in 1 case (1.3%), and 1 patient (1.3%) developed slight burn on cervical skin. Conclusions: Ultrasound-guided percutaneous microwave ablation is a practical method for treating benign solid thyroid nodules, and the complications were acceptable. The trial is registered with clinicaltrials.gov with the registration number NCT03057925. PMID- 29333160 TI - Corrigendum to "The Current Practice of Screening, Prevention, and Treatment of Androgen-Deprivation-Therapy Induced Osteoporosis in Patients with Prostate Cancer". AB - [This corrects the article DOI: 10.1155/2012/958596.]. PMID- 29333161 TI - Robustness of Tomato Quality Evaluation Using a Portable Vis-SWNIRS for Dry Matter and Colour. AB - The utility of a handheld visible-short wave near infrared spectrophotometer utilising an interactance optical geometry was assessed in context of the noninvasive determination of intact tomato dry matter content, as an index of final ripe soluble solids content, and colouration, as an index of maturation to guide a decision to harvest. Partial least squares regression model robustness was demonstrated through the use of populations of different harvest dates or growing conditions for calibration and prediction. Dry matter predictions of independent populations of fruit achieved R2 ranging from 0.86 to 0.92 and bias from -0.14 to 0.03%. For a CIE a* colour model, prediction R2 ranged from 0.85 to 0.96 and bias from -1.18 to -0.08. Updating the calibration model with new samples to extend range in the attribute of interest and in sample matrix is key to better prediction performance. The handheld spectrometry system is recommended for practical implementation in tomato cultivation. PMID- 29333162 TI - A Multivariate Methodological Workflow for the Analysis of FTIR Chemical Mapping Applied on Historic Paint Stratigraphies. AB - In the field of applied researches in heritage science, the use of multivariate approach is still quite limited and often chemometric results obtained are often underinterpreted. Within this scenario, the present paper is aimed at disseminating the use of suitable multivariate methodologies and proposes a procedural workflow applied on a representative group of case studies, of considerable importance for conservation purposes, as a sort of guideline on the processing and on the interpretation of this FTIR data. Initially, principal component analysis (PCA) is performed and the score values are converted into chemical maps. Successively, the brushing approach is applied, demonstrating its usefulness for a deep understanding of the relationships between the multivariate map and PC score space, as well as for the identification of the spectral bands mainly involved in the definition of each area localised within the score maps. PMID- 29333163 TI - Infiltrating Cardiac Synovial Sarcoma Presenting as Acute Cerebrovascular Accident. AB - Primary cardiac sarcoma is a rare malignant myocardial neoplasm that does not exhibit gender predominance or age predilection. The classification of these tumors includes several subtypes, of which synovial sarcoma is a rare manifestation. When present, these tumors portend a poor prognosis with high morbidity and mortality that is attributable to their inherent infiltrative capacity, especially in the absence of treatment. The general consensus for treatment is surgical excision and neoadjuvant chemotherapy and radiotherapy. In this report, a case of synovial sarcoma involving the left ventricular outflow tract and aortic valve is presented. PMID- 29333165 TI - Adipose-Derived Stromal Cells for Treatment of Patients with Chronic Ischemic Heart Disease (MyStromalCell Trial): A Randomized Placebo-Controlled Study. AB - We aimed to evaluate the effect of intramyocardial injections of autologous VEGF A165-stimulated adipose-derived stromal cells (ASCs) in patients with refractory angina. MyStromalCell trial is a randomized double-blind placebo-controlled study including sixty patients with CCS/NYHA class II-III, left ventricular ejection fraction > 40%, and at least one significant coronary artery stenosis. Patients were treated with ASC or placebo in a 2 : 1 ratio. ASCs from the abdomen were culture expanded and stimulated with VEGF-A165. At 6 months follow-up, bicycle exercise tolerance increased significantly in time duration 22 s (95%CI -164 to 208 s) (P = 0.034), in watt 4 (95%CI -33 to 41, 0.048), and in METs 0.2 (95%CI 1.4 to 1.8) (P = 0.048) in the ASC group while there was a nonsignificant increase in the placebo group in time duration 9 s (95%CI -203 to 221 s) (P = 0.053), in watt 7 (95%CI -40 to 54) (P = 0.41), and in METs 0.1 (95%CI -1.7 to 1.9) (P = 0.757). The difference between the groups was not significant (P = 0.680, P = 0.608, and P = 0.720 for time duration, watt, and METs, resp.). Intramyocardial delivered VEGF-A165-stimulated ASC treatment was safe but did not improve exercise capacity compared to placebo. However, exercise capacity increased in the ASC but not in the placebo group. This trial is registered with ClinicalTrials.gov NCT01449032. PMID- 29333164 TI - When Long Noncoding RNAs Meet Genome Editing in Pluripotent Stem Cells. AB - Most of the human genome can be transcribed into RNAs, but only a minority of these regions produce protein-coding mRNAs whereas the remaining regions are transcribed into noncoding RNAs. Long noncoding RNAs (lncRNAs) were known for their influential regulatory roles in multiple biological processes such as imprinting, dosage compensation, transcriptional regulation, and splicing. The physiological functions of protein-coding genes have been extensively characterized through genome editing in pluripotent stem cells (PSCs) in the past 30 years; however, the study of lncRNAs with genome editing technologies only came into attentions in recent years. Here, we summarize recent advancements in dissecting the roles of lncRNAs with genome editing technologies in PSCs and highlight potential genome editing tools useful for examining the functions of lncRNAs in PSCs. PMID- 29333166 TI - Influence of Different ECM-Like Hydrogels on Neurite Outgrowth Induced by Adipose Tissue-Derived Stem Cells. AB - Mesenchymal stem cells (MSCs) have been proposed for spinal cord injury (SCI) applications due to their capacity to secrete growth factors and vesicles secretome-that impacts important phenomena in SCI regeneration. To improve MSC survival into SCI sites, hydrogels have been used as transplantation vehicles. Herein, we hypothesized if different hydrogels could interact differently with adipose tissue-derived MSCs (ASCs). The efficacy of three natural hydrogels, gellan gum (functionalized with a fibronectin peptide), collagen, and a hydrogel rich in laminin epitopes (NVR-gel) in promoting neuritogenesis (alone and cocultured with ASCs), was evaluated in the present study. Their impact on ASC survival, metabolic activity, and gene expression was also evaluated. Our results indicated that all hydrogels supported ASC survival and viability, being this more evident for the functionalized GG hydrogels. Moreover, the presence of different ECM-derived biological cues within the hydrogels appears to differently affect the mRNA levels of growth factors involved in neuronal survival, differentiation, and axonal outgrowth. All the hydrogel-based systems supported axonal growth mediated by ASCs, but this effect was more robust in functionalized GG. The data herein presented highlights the importance of biological cues within hydrogel-based biomaterials as possible modulators of ASC secretome and its effects for SCI applications. PMID- 29333167 TI - Myocardial Regeneration via Progenitor Cell-Derived Exosomes. AB - In the past 20 years, a variety of cell products has been evaluated in terms of their capacity to treat patients with acute myocardial infarction and chronic heart failure. Despite initial enthusiasm, therapeutic efficacy has overall been disappointing, and clinical application is costly and complex. Recently, a subset of small extracellular vesicles (EVs), commonly referred to as "exosomes," was shown to confer cardioprotective and regenerative signals at a magnitude similar to that of their donor cells. The conceptual advantage is that they may be produced in industrial quantities and stored at the point-of-care for off-the shelf application, ideally without eliciting a relevant recipient immune response or other adverse effects associated with viable cells. The body of evidence on beneficial exosome-mediated effects in animal models of heart diseases is rapidly growing. However, there is significant heterogeneity in terms of exosome source cells, isolation process, therapeutic dosage, and delivery mode. This review summarizes the current state of research on exosomes as experimental therapy of heart diseases and seeks to identify roadblocks that need to be overcome prior to clinical application. PMID- 29333169 TI - The DEAD-Box RNA Helicase DDX3 Interacts with m6A RNA Demethylase ALKBH5. AB - DDX3 is a member of the family of DEAD-box RNA helicases. DDX3 is a multifaceted helicase and plays essential roles in key biological processes such as cell cycle, stress response, apoptosis, and RNA metabolism. In this study, we found that DDX3 interacted with ALKBH5, an m6A RNA demethylase. The ATP domain of DDX3 and DSBH domain of ALKBH5 were indispensable to their interaction with each other. Furthermore, DDX3 could modulate the demethylation of mRNAs. We also showed that DDX3 regulated the methylation status of microRNAs and there was an interaction between DDX3 and AGO2. The dynamics of m6A RNA modification is still a field demanding further investigation, and here, we add a link by showing that RNA demethylation can be regulated by proteins such as DDX3. PMID- 29333168 TI - Mesenchymal Stem Cell Benefits Observed in Bone Marrow Failure and Acquired Aplastic Anemia. AB - Acquired aplastic anemia (AA) is a type of bone marrow failure (BMF) syndrome characterized by partial or total bone marrow (BM) destruction resulting in peripheral blood (PB) pancytopenia, which is the reduction in the number of red blood cells (RBC) and white blood cells (WBC), as well as platelets (PLT). The first-line treatment option of AA is given by hematopoietic stem cell (HSCs) transplant and/or immunosuppressive (IS) drug administration. Some patients did not respond to the treatment and remain pancytopenic following IS drugs. The studies are in progress to test the efficacy of adoptive cellular therapies as mesenchymal stem cells (MSCs), which confer low immunogenicity and are reliable allogeneic transplants in refractory severe aplastic anemia (SAA) cases. Moreover, bone marrow stromal cells (BMSC) constitute an essential component of the hematopoietic niche, responsible for stimulating and enhancing the proliferation of HSCs by secreting regulatory molecules and cytokines, providing stimulus to natural BM microenvironment for hematopoiesis. This review summarizes scientific evidences of the hematopoiesis improvements after MSC transplant, observed in acquired AA/BMF animal models as well as in patients with acquired AA. Additionally, we discuss the direct and indirect contribution of MSCs to the pathogenesis of acquired AA. PMID- 29333170 TI - Multiple Myeloma-Derived Exosomes Regulate the Functions of Mesenchymal Stem Cells Partially via Modulating miR-21 and miR-146a. AB - Exosomes derived from cancer cells can affect various functions of mesenchymal stem cells (MSCs) via conveying microRNAs (miRs). miR-21 and miR-146a have been demonstrated to regulate MSC proliferation and transformation. Interleukin-6 (IL 6) secreted from transformed MSCs in turn favors the survival of multiple myeloma (MM) cells. However, the effects of MM exosomes on MSC functions remain largely unclear. In this study, we investigated the effects of OPM2 (a MM cell line) exosomes (OPM2-exo) on regulating the proliferation, cancer-associated fibroblast (CAF) transformation, and IL-6 secretion of MSCs and determined the role of miR 21 and miR-146a in these effects. We found that OPM2-exo harbored high levels of miR-21 and miR-146a and that OPM2-exo coculture significantly increased MSC proliferation with upregulation of miR-21 and miR-146a. Moreover, OPM2-exo induced CAF transformation of MSCs, which was evidenced by increased fibroblast activated protein (FAP), alpha-smooth muscle actin (alpha-SMA), and stromal derived factor 1 (SDF-1) expressions and IL-6 secretion. Inhibition of miR-21 or miR-146a reduced these effects of OPM2-exo on MSCs. In conclusion, MM could promote the proliferation, CAF transformation, and IL-6 secretion of MSCs partially through regulating miR21 and miR146a. PMID- 29333171 TI - Exclusive Breastfeeding Practice and Associated Factors among Mothers Attending Private Pediatric and Child Clinics, Addis Ababa, Ethiopia: A Cross-Sectional Study. AB - Background: The prevalence of exclusive breastfeeding (EBF) is globally low (35%) in sub-Saharan Africa, whereas it is 58% in Ethiopia. Exclusive breastfeeding has the potential to prevent 11.6% of under-five deaths in developing countries. Therefore, the main objective of this study was to assess the exclusive breastfeeding practice and associated factors on mothers attending private pediatric and child clinics in Addis Ababa, Ethiopia. Methods: An institutional based cross-sectional study design was used. A total of 380 samples were obtained. Data were collected using a self-administered questionnaire. Data was entered and analyzed using SPSS version 16. Descriptive statistics and logistic regression analysis were used. Results: From 380 mothers, only 44.2% of the mothers practiced EBF. Two hundred (52.6%) mothers started breastfeeding within 1 hour of delivery; 161 (42.4%) of the mothers gave extra food before six months, and 244 (64.2%) believed that exclusive breastfeeding was sufficient. Moreover, 288 (75.8%) mothers breastfed their children eight or more times per day. Spontaneous vaginal delivery was a significant factor to practice EBF (AOR: 1.86, 95% CI: 1.19-2.89). Conclusion: EBF practice in this study was low. Spontaneous vaginal delivery was a significant factor for EBF; hence, it is very crucial to promote EBF. PMID- 29333172 TI - Examining the Relationship between Park Neighborhoods, Features, Cleanliness, and Condition with Observed Weekday Park Usage and Physical Activity: A Case Study. AB - Background: Little research has comprehensively explored how park features, quality indicators, and neighborhood environments are associated with observed park usage and physical activity (PA). This case study examined whether weekday park usage and PA differ by neighborhood type, across numerous categories of park features, and according to park feature condition and cleanliness. Methods: Direct observation was used to capture the number of users and PA levels within 143 park features in 6 parks (3 urban, 3 suburban) over the course of six weeks. Audits of park environments assessed the type, condition, and cleanliness of all features and amenities. Results: Urban parks experienced greater usage, but a higher proportion of sedentary users than suburban parks. Usage and PA levels differed across types of park features, with splash pads, pools, paths, and play structures having the greatest proportion of active users. Usage did not differ by park feature condition and cleanliness, but greater condition and cleanliness were generally associated with higher PA levels. Conclusions: Factors such as neighborhood context, types of park features, and condition and cleanliness can impact park usage and PA levels and should be targets for researchers and planners aiming to foster more user-friendly and active neighborhood park environments. PMID- 29333173 TI - Prevalence and Perinatal Outcomes of Singleton Term Breech Delivery in Wolisso Hospital, Oromia Region, Southern Ethiopia: A Cross-Sectional Study. AB - Background: Breech deliveries have always been topical issues in obstetrics. Neonates undergoing term breech deliveries have long-term morbidity up to the school age irrespective of mode of delivery. Objective: To determine prevalence and perinatal outcomes of singleton term breech delivery. Methods: Hospital based cross-sectional study was conducted on 384 participants retrospectively. Descriptive and analytical statistics was used. Result: A total of 384 breech deliveries were included. Prevalence of singleton breech deliveries in the hospital was 3.4%. The perinatal outcome of breech deliveries was 322 (83.9%). Adverse perinatal outcome of singleton term breech delivery was significantly associated with women's age of greater than or equal to 35 years (AOR = 2.62, 95% CI = 1.14-6.03), fully dilated cervix (AOR = 0.48, 95% CI = 0.25-0.91), ruptured membrane (AOR = 5.11, 95% CI = 2.25-11.6), and fetal weight of <2500 g (AOR = 6.77, 95% CI = 3.22-14.25). Conclusion: Entrapment of head, birth asphyxia, and cord prolapse were the most common causes of perinatal mortality. Factors like fetal weight <2500 gm, mothers of age 35 years and above, those mothers not having a fully dilated cervix, and mothers with ruptured membrane were associated with increased perinatal mortality. PMID- 29333174 TI - A quantitative framework for assessing ecological resilience. AB - Quantitative approaches to measure and assess resilience are needed to bridge gaps between science, policy and management. In this paper, we revisit definitions of resilience and suggest a quantitative framework for assessing ecological resilience sensu Holling (1973). Ecological resilience as an emergent ecosystem phenomenon can be decomposed into complementary attributes (scales, adaptive capacity, thresholds and alternative regimes) that embrace the complexity inherent to ecosystems. Quantifying these attributes simultaneously provides opportunities to move from the assessment of specific resilience within an ecosystem towards a broader measurement of its general resilience. We provide a framework, based on testable hypotheses, which allows assessment of complementary attributes of ecological resilience. By implementing the framework in adaptive approaches to management, inference and modeling, key uncertainties can be reduced incrementally over time and learning about the general resilience of dynamic ecosystems maximized. Such improvements are needed because uncertainty about global environmental change impacts and their effects on resilience is high. Improved resilience assessments will ultimately facilitate an optimized use of limited resources for management. PMID- 29333175 TI - East-West, Collectivist-Individualist: A Cross-Cultural Examination of Temperament in Toddlers from Chile, Poland, South Korea, and the U.S. AB - The present study examined toddler temperament across Chilean, South Korean, Polish, and US samples, providing an opportunity to examine both collectivist individualist and East-West contrasts. The effect of culture on the three factor and 18 dimension scores provided by the Early Childhood Behavior Questionnaire were investigated. Results provide evidence of cross-cultural differences between the four samples. Chilean toddlers scored significantly higher than US, Polish, and South Korean children on the overall factor of Negative Affectivity, as well as higher than the Polish and South Korean samples on the Surgency factor. South Korean toddlers scored significantly higher on the factor of Effortful Control, and two related dimensions, than US, Polish, or Chilean samples. Results are discussed in terms of the apparent roles of individualism/collectivism and East West distinctions in shaping temperament development. PMID- 29333176 TI - Reverse Engineering the Inflammatory "Clock": From Computational Modeling to Rational Resetting. AB - Properly-regulated inflammation is central to homeostasis. Traumatic injury, hemorrhagic shock, septic shock, and other injury-related processes such as wound healing are associated with dysregulated inflammation. Like many biological processes, inflammation is a dynamic, complex system whose function, like that of an analog clock, cannot be discerned simply from a laundry list of its parts (data). The advent of multiplexed platforms for gathering biological data, while providing an unprecedented level of detailed information about the inflammatory response, has paradoxically also proven to be overwhelming. This problem is especially acute when the datasets involve time courses, since typical statistical analyses and data-driven modeling are geared towards single time points. Various groups have addressed this problem using dynamic approaches to data-driven and mechanistic computational modeling. These modeling tools can be thought of as the "gears" and "hands" of the "clock," and have led to insights regarding principal drivers, dynamic networks, feedbacks, and regulatory switches that characterize and perhaps regulate the inflammatory response. In parallel, mechanistic computational models have given an abstracted sense of how the inflammatory "clock" works, leading to in silico models of critically ill individuals and populations. Integrating data-driven and mechanistic modeling may point the way to a rational "resetting" of inflammation via model-driven precision medicine. PMID- 29333177 TI - The Vasodilatory Effects of Anti-Inflammatory Herb Medications: A Comparison Study of Four Botanical Extracts. AB - Inflammation plays a pivotal role in the development and progression of cardiovascular diseases, in which, the endothelium dysfunction has been a key element. The current study was designed to explore the vasodilatory effect of anti-inflammatory herbs which have been traditionally used in different clinical applications. The total saponins from Actinidia arguta radix (SAA), total flavonoids from Glycyrrhizae radix et rhizoma (FGR), total coumarins from Peucedani radix (CPR), and total flavonoids from Spatholobi caulis (FSC) were extracted. The isometric measurement of vasoactivity was used to observe the effects of herbal elements on the isolated aortic rings with or without endothelium. To understand endothelium-independent vasodilation, the effects of herb elements on agonists-induced vasocontractility and on the contraction of endothelium-free aortic rings exposed to a Ca2+-free medium were examined. Furthermore, the role of nitric oxide signaling in endothelium-dependent vasodilation was also evaluated. In summary, FGR and FSC exhibit potent anti inflammatory effects compared to CPR and SAA. FGR exerts the strongest vasodilatory effect, while CPR shows the least. The relaxation induced by SAA and FSC required intact endothelia. The mechanism of this vasodilation might involve eNOS. CPR-mediated vasorelaxation appears to involve interference with intracellular calcium homeostasis, blocking Ca2+ influx or releasing intracellular Ca2+. PMID- 29333178 TI - Efficacy of Combined XingZhi-YiNao Granules and Hyperbaric Oxygen Therapy for Cognition and Motor Dysfunction in Patients with Delayed Encephalopathy after Acute Carbon Monoxide Poisoning. AB - Purpose: To investigate the efficacy of XingZhi-YiNao (XZYN) granules and hyperbaric oxygenation (HBO) for cognition and motor dysfunction in patients with delayed encephalopathy after acute carbon monoxide poisoning (DEACMP). Methods: Eighty-nine patients with DEACMP were randomly divided into control group (n = 19), HBO group (n = 32), and XZYN group (n = 38). All patients received conventional treatment. HBO group received HBO therapy once daily. XZYN group received extra XZYN granules plus HBO treatment. The related indexes including activity of daily living (ADL) scale, Montreal cognitive assessment (MoCA) scale, and mini mental state examination (MMSE) scale were measured. Cerebral white matter injury, age related white matter changes (ARWMC) scale, and the amplitude and latency of P300 were assessed. Results: Compared with control group, the neurological function scores of ADL, MoCA, and MMSE in HBO and XZYN groups were significantly improved, the impairment degree of brain white matter and cognition function were obviously alleviated, the latencies of P300 were significantly shortened, and the amplitudes of P300 were evidently increased (P < 0.05). Treatment efficacy of XZYN group was superior to that of HBO group (P < 0.05). Conclusion: Combined XZYN granules and HBO can significantly improve cognition and motor functions in patients with DEACMP. PMID- 29333179 TI - Liensinine and Nuciferine, Bioactive Components of Nelumbo nucifera, Inhibit the Growth of Breast Cancer Cells and Breast Cancer-Associated Bone Loss. AB - Once breast cancer cells grow aggressively and become lodged in the skeleton through migration and invasion, they interact with bone microenvironment and accelerate much more tumor growth and bone destruction. We investigated whether liensinine and nuciferine, major active components in Nelumbo nucifera (lotus), could prevent breast cancer cell-mediated bone destruction. Liensinine and nuciferine inhibited the growth of MDA-MB-231 and MCF-7 human breast cancer cells by inducing apoptosis and inhibiting proliferation via cell cycle arrest. Liensinine treatment led to the increased Bax/Bcl-2 ratio, activation of caspase 3, and subsequent cleavage of PARP. Liensinine also displayed significant inhibition on the migration and invasion of both MDA-MB-231 and MCF-7 human breast cancer cells compared with nuciferine. In addition, liensinine and nuciferine inhibited the receptor activator of nuclear factor kappa-B ligand- (RANKL-) induced osteoclast differentiation in mouse bone marrow macrophage cells and mature osteoclast-mediated bone resorption. Furthermore, oral administration of liensinine reduced the osteolysis in nude mice with intratibial injection of MDA-MB-231 cells. Collectively, liensinine and nuciferine may be promising candidates for preventing and treating breast cancer bone metastasis and the resulting osteolytic bone loss by targeting both cancer cells and osteoclasts. Liensinine has more potent anticancer and antibone resorptive activities than nuciferine. PMID- 29333180 TI - Retracted: Silymarin Accelerates Liver Regeneration after Partial Hepatectomy. AB - [This retracts the article DOI: 10.1155/2015/603529.]. PMID- 29333181 TI - Study on the Inhibitory Effects of Ephedra Aconite Asarum Decoction on LPS Induced Dendritic Cells. AB - Dendritic cells (DCs) can secrete cytokines stimulated by lipopolysaccharide (LPS), which leads to not just acute inflammatory responses but also Th1 polarization. Furtherly, chronic inflammation or autoimmune diseases could be triggered. As a classic Traditional Chinese Medicine formula, Ephedra Aconite Asarum Decoction with the main ingredients of ephedrine and hypaconitine can show effect on anti-inflammation and immunoregulation. But it remains unclear whether Ephedra Aconite Asarum Decoction controls DCs. In this study, we investigated the effects of Ephedra Aconite Asarum Decoction on LPS-induced bone marrow-derived DCs (BMDCs) in vitro. We found that Ephedra Aconite Asarum Decoction lowered surface costimulators on DCs and reduced the expression of Th1 type cytokines. Yet it is slightly beneficial for shifting to Th2. Our work reveals that the Ephedra Aconite Asarum Decoction can regulate Th1 inflammation through intervening DCs. PMID- 29333182 TI - Corrigendum to "Ginkgolide C Suppresses Adipogenesis in 3T3-L1 Adipocytes via the AMPK Signaling Pathway". AB - [This corrects the article DOI: 10.1155/2015/298635.]. PMID- 29333183 TI - Retracted: The Effect of Elephantopus scaber L. on Liver Regeneration after Partial Hepatectomy. AB - [This retracts the article DOI: 10.1155/2013/369180.]. PMID- 29333184 TI - Meta-Analysis of Chinese Traditional Medicine Bushen Huoxue Prescription for Endometriosis Treatment. AB - Objectives: To evaluate the efficacy and safety of Bushen Huoxue prescription (BSHXP) for endometriosis. Methods: A meta-analysis was performed, and studies were searched from the seven databases from the date of database establishment to April 30, 2017. Randomized controlled trials (RCTs) that explored the efficacy and safety of BSHXP for patients with endometriosis were included. Two assessors independently reviewed each trial. The Cochrane Risk of Bias assessment tool was used for quality assessment. Results: In the 13 included studies, the total effectiveness rates of BSHXP were higher than those of Western medicine (RR, 1.55; 95% CI, 1.03-2.32; P = 0.04), but the dysmenorrhea alleviation rates of the two treatments did not significantly differ (RR, 1.28; 95% CI, 0.70-2.34; P = 0.42). The pregnancy rates of BSHXP were also higher than those of hormone therapy (RR, 1.99; 95% CI, 1.17-3.39; P = 0.01). However, whether BSHXP is more effective than Western medicine in diminishing endometriotic cyst remains unknown. Conclusions: Our study provides evidence that BSHXP is effective and safe for endometriosis, but this evidence is inconclusive because of the low methodological quality of the included RCTs. Our findings suggest that BSHXP is an alternative drug for endometriosis, but it should be further examined in future clinical research. PMID- 29333185 TI - Antidepressant-Like Effect of Selected Egyptian Cultivars of Flaxseed Oil on a Rodent Model of Postpartum Depression. AB - Flaxseed (Linum usitatissimum L.) is a multipurpose crop with health promoting potential. This study was undertaken to investigate the fatty acid profile and yield of fixed oil of six Egyptian flaxseed cultivars. The selected cultivars with the highest content of polyunsaturated fatty acids (PUFAs) (G9 and G10) were assessed for their antidepressant-like effect in rat model of postpartum depression (PPD) induced by hormone-simulated pregnancy followed by hormone withdrawal and compared to fluoxetine. As compared to control group, administration of G9 and G10 (270 mg/kg/day, p.o) for two weeks during the postpartum period can alleviate anxiety and depressive-like behaviors and biochemical changes in PPD-induced rats. This was confirmed by evaluation of anxiety-like behaviors (elevated plus maze, open field test, and forced swim test tests), in addition to biochemical analysis (brain monoamine oxidase-A, corticosterone level, proinflammatory cytokines, and hippocampal redox state). In conclusion, flaxseed oil of Egyptian cultivars G9 and G10 exhibited significant antidepressant-like effect in rat model of PPD without affecting locomotor activity. At the treatment doses, the antidepressant-like activity of Giza 9 oil is comparable to fluoxetine. PMID- 29333186 TI - Role of Cholinergic Anti-Inflammatory Pathway in Treatment of Intestinal Ischemia Reperfusion Injury by Electroacupuncture at Zusanli. AB - Electroacupuncture (EA) at Zusanli is a widely used method for the treatment of intestinal ischemic disease. The current study attempts to investigate the possible mechanism from the point of cholinergic anti-inflammatory pathway (CAP) in rats. Thirty rats were divided into five groups: control group, I/R group, EA group (I/R + EA), PNU group (I/R + alpha7 nAChR agonist), and alpha-BGT group (I/R + EA + alpha7 nAChR antagonist). EA and medicine injection were performed immediately after ischemia. After 2 h of reperfusion, blood and intestine samples were collected and intestinal histopathological score, mRNA expression of mucosal alpha7 nAChR and NF-kappaBp65, and serum cytokine levels (IL-6, TNF-alpha) were examined. Compared with the I/R group, the EA group and PNU group could significantly attenuate the mucosal damage, promote alpha7 nAChR mRNA expression, and reduce levels of NF-kappaBp65, IL-6, and TNF-alpha. Compared with the EA group, alpha7 nAChR mRNA was decreased, while concentrations of NF-kappaBp65, IL 6, and TNF-alpha increased in the alpha-BGT group. EA at Zusanli could inhibit NF kappaBp65 and proinflammatory cytokines production after intestinal I/R injury; its mechanism may be related to the cholinergic anti-inflammatory pathway. PMID- 29333187 TI - Efficacy and Safety of the TCM Qi-Supplementing Therapy in Patients with Myasthenia Gravis: A Systematic Review and Meta-Analysis. AB - Background: The Traditional Chinese Medicine (TCM) Qi-supplementing therapy has been used widely for treating myasthenia gravis (MG) in China. The purpose of this meta-analysis was to evaluate the efficacy and safety of Qi-supplementing therapy as an adjunctive therapy in MG patients. Methods: Seven electronic databases were searched through June 2016. Randomized controlled trials (RCTs) evaluating the add-on effect of Qi-supplementing therapy in MG patients were included. The outcome measures were the total effective rate, relapse rate, and adverse events. Results: Twenty-three RCTs involving 1,691 MG patients were included. The included studies were of low-to-moderate quality. Meta-analysis showed that Qi-supplementing therapy combined with Western medicine (WM) significantly improved the total response rate and reduced the relapse risk during 6-24 months of follow-up. Subgroup analysis showed that Qi-supplementing therapy only affected the total response rate within the first 6 months of treatment. Moreover, the rate of adverse events was lower with the addition of Qi supplementing therapy to WM than with WM only. Conclusions: Short-term Qi supplementing therapy combined with WM appears to be superior to WM for improving the total response rate and reducing the relapse rate. However, more high-quality RCTs are warranted owing to methodological flaws of previous trials. PMID- 29333188 TI - Dracorhodin Perchlorate Accelerates Cutaneous Wound Healing in Wistar Rats. AB - Dracorhodin perchlorate (DP) is extracted from Dragon's blood, which is widely used in traditional Chinese medicine, especially in wound healing. The aim of this paper is to investigate the influence of DP ointment, which contained DP dissolved in DMSO and mixed with Vaseline, on cutaneous wound healing in Wistar rats. Forty Wistar rats were divided into two groups: control and DP groups. The skin on the back of each rat was punched with two full-thickness wounds and then treated with the corresponding drug. After 3, 7, 10, 14, and 21 days, four rats were sacrificed for immunological, biochemical, and histological analyses. Compared with the control treatment, DP could significantly promote wound closure. Histological and biochemical analyses of the skin biopsies also showed that DP regulated the expression of inflammatory responses by TNF-alpha and IL beta and by supporting wound tissue growth and collagen deposition. Western blot revealed that DP could also facilitate the expression of EGF and VEGF proteins. In conclusion, DP promotes wound healing. PMID- 29333189 TI - Tubular variant of mammary adenomyoepithelioma: Diagnostic challenges and cytomorphological correlation in two cases. AB - The authors describe the cytomorphologic features of two cases of tubular variant of adenomyoepithelioma of the breast that were first examined by fine-needle aspiration cytology (FNAC) and diagnosed as fibroadenoma. On retrospective review of the cytology, subtle features such as less cohesive epithelial clusters, intimate association of clusters of stromal cells with epithelial elements, a dominant population of plump-epithelioid naked (myoepithelial) cells, and occasional cells with intranuclear inclusions, were noted. Thus, these lesions can be diagnostically challenging and cannot be conclusively differentiated from either fibroadenoma or tubular adenoma cytologically and the pathologist may only be able to give a differential on FNAC. Recognition of the biphasic nature and the characteristic overall architecture of the tumors in combination with immunohistochemistry are essential to establish the correct diagnosis on biopsy. Although most tumors have a benign clinical course, rare instances of local recurrence, malignant transformation, and distant metastases have been reported. A complete excision with adequate margins would lower the chance of local recurrence. PMID- 29333190 TI - Fine-needle aspiration of a right neck mass in a 10-year-old boy: Diagnostic clues and workup for tumors with small round blue cells. PMID- 29333191 TI - Comparative evaluation of six parametric Robinson and three parametric Howell's modification of Scarf-BloomRichardson grading method on breast aspirates with histopathology: A prospective study. AB - Background: Fine needle aspiration cytology (FNAC) is a quick method to assess the tumor grade before its removal which will help clinicians to decide on the appropriate neo adjuvant therapy. This is essentially true in developing countries where core needle biopsy still is not used as a standard practice to sample breast carcinoma. Assessment of biological aggressiveness by cytological grading (CG) without removing the would be of immense value. The National Cancer Institute, Bethesda, sponsored conference had recommended that tumor grading on FNA material should be incorporated in cytology reports for prognostication. Aim: The present study was carried out to evaluate which among the two, five parametric Robinson or three parametric Scarf-BloomRichardson (SBR) cytology grading method corresponds better with the histological grading (HG) in breast carcinoma. Materials and Methods: FNAC of 150 cases of ductal carcinoma breast with subsequent histological confirmation was studied to assess the tumor grade on cytology by two distinct methods Robinson and Howell's modification of SBRmethod and then correlated with histologic grade. Results: Comparative analysis revealed concordance of 76% by Robinson and 68% by SBR with Kappa value of 0.6683 and 0.4505 and diagnostic accuracy of 86.7% and 78.7%, respectively. Conclusions: We conclude that Robinson method showed a better correlation and higher kappa value of agreement in comparison with SBR method. Robinson method of CG is simpler, objective, and easily reproducible for grading breast carcinomas. PMID- 29333192 TI - 'Haven of safety' and 'secure base': a qualitative inquiry into factors affecting child attachment security in Nairobi, Kenya. AB - Secure attachment in childhood and adolescence protects children from engagement in high risk behaviors and development of mental health problems over the life span. Poverty has been shown to create impoverishment in certain aspects of caregiving and correspondingly to compromise development of secure attachment in children. Nineteen children 8 to 14 years old from two schools in a middle income area and an urban informal settlement area of Nairobi were interviewed using an adapted Child Attachment Interview (CAI) protocol. CAI was developed to provide a glimpse into the 'meta-theories' children have about themselves, parents, parenting and their attachment ties with parents and extended family members. Narratives obtained with the CAI were analyzed using thematic analysis. Both Bowlby's idea of 'secure base' as well as Bronfrenbrenner's 'ecological niche' are used as reference points to situate child attachment and parenting practices in the larger Kenyan context. We found that with slight linguistic alterations CAI can be used to assess attachment security of Kenyan children in this particular age range. We also found that the narration ability in both groups of children was generally good such that formal coding was possible, despite cultural differences. Our analysis suggested differences in narrative quality across the children from middle class and lower socio-economic class schools on specific themes such as: sensitivity of parenting (main aspects of sensitivity were associated with disciplinary methods and child's access to education), birth order, parental emotional availability, and severity of inter-parental conflicts and child's level of exposure. The paper puts in context a few cultural practices such as greater household responsibility accorded to the eldest child and stern to harsh disciplinary methods adopted by parents in the Kenyan setting. PMID- 29333193 TI - Systematic Review of Community-Engaged Research in Ophthalmology. AB - Introduction: Community-engaged research (CEnR) allows researchers and community organizations to partner together to improve health outcomes and to decrease health disparities. While prevalent in other fields of medicine, it is rarely used in ophthalmology. Areas covered: A comprehensive search of Ovid MEDLINE, NLM Pubmed, Ovid Embase, Scopus and the Cochrane Library for the Medical Subject Headings (MeSH) "Community-based participatory research" and text word variations including participatory research, community engagement, community research, partnered research, community-institutional relations, CENR, CBPR in addition to variations on ophthalmology, eye diseases, vision disorders and eye injuries yielded 451 unique references. Two ophthalmologists (KN, PANC) reviewed the titles and abstracts and identified 37 relevant studies. Expert consultation yielded an additional reference. After reviewing the full texts and excluding non English texts, 18 articles met the necessary criteria. The eighteen articles all utilized at least one of the nine principles of CEnR. Expert commentary: Ophthalmology is perfectly positioned to benefit from CEnR. Increased community engagement in ophthalmic research would expand the reach of our work and address some of the most difficult problems in vision disparities and outcomes. PMID- 29333194 TI - Transient Dynamics Simulation of Airflow in a CT-Scanned Human Airway Tree: More or Fewer Terminal Bronchi? AB - Using computational fluid dynamics (CFD) method, the feasibility of simulating transient airflow in a CT-based airway tree with more than 100 outlets for a whole respiratory period is studied, and the influence of truncations of terminal bronchi on CFD characteristics is investigated. After an airway model with 122 outlets is extracted from CT images, the transient airflow is simulated. Spatial and temporal variations of flow velocity, wall pressure, and wall shear stress are presented; the flow pattern and lobar distribution of air are gotten as well. All results are compared with those of a truncated model with 22 outlets. It is found that the flow pattern shows lobar heterogeneity that the near-wall air in the trachea is inhaled into the upper lobe while the center flow enters the other lobes, and the lobar distribution of air is significantly correlated with the outlet area ratio. The truncation decreases airflow to right and left upper lobes and increases the deviation of airflow distributions between inspiration and expiration. Simulating the transient airflow in an airway tree model with 122 bronchi using CFD is feasible. The model with more terminal bronchi decreases the difference between the lobar distributions at inspiration and at expiration. PMID- 29333195 TI - Corrigendum to "Development of a Patient-Specific Finite Element Model for Predicting Implant Failure in Pelvic Ring Fracture Fixation". AB - [This corrects the article DOI: 10.1155/2017/9403821.]. PMID- 29333196 TI - Brief report: Reduced anxiety following Pivotal Response Treatment in young children with Autism Spectrum Disorder. AB - Up to 40% of children with Autism Spectrum Disorder (ASD) exhibit co-occurring anxiety symptoms. Despite recent success in mitigating anxiety symptoms in school aged children with ASD (mean age >9 years) using adapted versions of Cognitive Behavioural Therapy, little is known about potential treatment outcomes for younger children. To address the gap in the literature, this open-label study evaluated change in anxiety following a 16-week open-label trial of Pivotal Response Treatment (PRT) in children with ASD aged 4-8 years. PRT is a behavioural treatment based on the principles of Applied Behaviour Analysis and has a primary aim of increasing social communication skills in children with ASD through natural reinforcements. To minimise conflation of anxiety and other co occurring symptoms such as disruptive behaviour and attention-deficit hyperactivity disorder, we measured anxiety using the autism anxiety subscale of the Child and Adolescent Symptom Inventory (CASI) devised by Sukhodolsky et al. (2008). We observed significant anxiety reduction over 16-weeks of PRT. Furthermore, anxiety reduction was independent of changes in autism symptom severity. This study shows promising results for PRT as an intervention for reducing anxiety in young children with ASD. PMID- 29333197 TI - Solving moment hierarchies for chemical reaction networks. AB - The study of chemical reaction networks (CRN's) is a very active field. Earlier well-known results (Feinberg 1987 Chem. Enc. Sci. 42 2229, Anderson et al 2010 Bull. Math. Biol. 72 1947) identify a topological quantity called deficiency, for any CRN, which, when exactly equal to zero, leads to a unique factorized steady state for these networks. No results exist however for the steady states of non zero-deficiency networks. In this paper, we show how to write the full moment hierarchy for any non-zero-deficiency CRN obeying mass-action kinetics, in terms of equations for the factorial moments. Using these, we can recursively predict values for lower moments from higher moments, reversing the procedure usually used to solve moment hierarchies. We show, for nontrivial examples, that in this manner we can predict any moment of interest, for CRN's with non-zero deficiency and non-factorizable steady states. PMID- 29333198 TI - Response of Pacific-sector Antarctic ice shelves to the El Nino/Southern Oscillation. AB - Satellite observations over the past two decades have revealed increasing loss of grounded ice in West Antarctica, associated with floating ice shelves that have been thinning. Thinning reduces an ice-shelf's ability to restrain grounded-ice discharge, yet our understanding of the climate processes that drive mass changes is limited. Here, we use ice-shelf height data from four satellite altimeter missions (1994-2017) to show a direct link between ice-shelf-height variability in the Antarctic Pacific sector and changes in regional atmospheric circulation driven by the El Nino-Southern Oscillation. This link is strongest from Dotson to Ross ice shelves and weaker elsewhere. During intense El Nino years, height increase by accumulation exceeds the height decrease by basal melting, but net ice-shelf mass declines as basal ice loss exceeds lower-density snow gain. Our results demonstrate a substantial response of Amundsen Sea ice shelves to global and regional climate variability, with rates of change in height and mass on interannual timescales that can be comparable to the longer-term trend, and with mass changes from surface accumulation offsetting a significant fraction of the changes in basal melting. This implies that ice-shelf height and mass variability will increase as interannual atmospheric variability increases in a warming climate. PMID- 29333199 TI - Effects of the dietary approaches to stop hypertension (DASH) diet on glucose variability in youth with Type 1 diabetes. AB - Objective: Glucose variability (GV) independently increases risk for vascular events in patients with diabetes. The Dietary Approaches to Stop Hypertension (DASH) dietary pattern emphasizes fruits, vegetables, whole grains, lean meats, and low fat dairy and has the potential to reduce postprandial blood glucose (BG) excursions, however, its effect on GV is not known. The purpose of this work was to assess feasibility and collect preliminary data on the efficacy of the DASH diet on GV in adolescents with type 1 diabetes (T1D). Methods: Twenty one adolescents recruited from the Diabetes Center of Cincinnati Children's Hospital Medical Center with T1D (11-17y) participated in one of two phases of a controlled feeding study. The first phase tested the acceptability and blood glucose response to a traditional DASH diet (DASH) and the second phase tested a DASH diet specifically modified for diabetes (DASH-D) to improve glucose response to meals. For each phase, participants consumed first their usual diet, and then a controlled DASH diet while wearing continuous glucose monitoring (CGM) systems for 3 days of each diet. All foods were provided to the patients during the DASH dietary periods and 24 h dietary recalls were conducted during the usual diet periods to assess daily intake. Results: Sixteen participants (14.1 +/- 2.2y) were included in final analyses (DASH n=7, DASH-D n=9). Both DASH diets were significantly higher in fruits, vegetables, fiber, vitamin A, and % energy from protein than usual intakes. DASH was higher in carbohydrate (CHO) (60 vs. 50%) and lower in fat (21 vs. 36%) than usual intake, resulting in higher GV (Standard Deviation and Lability Index) and more low BG excursions (3 +/- 2.8 vs. 7.1 +/- 3.3, p=0.024). DASH-D was modified to better match CHO and fat content of patients' usual intakes in phase 1 (50/30/20 for CHO/fat/pro respectively, which resulted in no difference in GV between DASH-D and usual intake. There were also trends for lower average BG (144.1 vs. 168.9, p=0.072) and less percentage of time spent in the hyperglycemic range (39.3 +/- 25.5 vs. 54.1 +/- 19.4, p=0.07) on DASH-D compared to usual intake. Conclusion: The DASH dietary pattern tended to result in less hyperglycemia and an overall lower BG compared to usual care. Modifying a traditional DASH diet by increasing heart healthy fats improves glycemic response to DASH and may be beneficial for long term cardiovascular benefits in youth with T1D. PMID- 29333200 TI - Perceptions of Mindfulness in a Low-income, Primarily African American Treatment Seeking Sample. AB - Individuals with low socioeconomic status (SES) and members of racial/ethnic minority groups often experience profound disparities in mental health and physical well-being. Mindfulness-based interventions show promise for improving mood and health behaviors in higher-SES and non-Latino White populations. However, research is needed to explore what types of adaptations, if any, are needed to best support underserved populations. This study used qualitative methods to gain information about a) perceptions of mindfulness, b) experiences with meditation, c) barriers to practicing mindfulness, and d) recommendations for tailoring mindfulness-based interventions in a low-income, primarily African American treatment-seeking sample. Eight focus groups were conducted with 32 adults (16 men and 16 women) currently receiving services at a community mental health center. Most participants (91%) were African American. Focus group data were transcribed and analyzed using NVivo 10. A team of coders reviewed the transcripts to identify salient themes. Relevant themes included beliefs that mindfulness practice might improve mental health (e.g., managing stress and anger more effectively) and physical health (e.g., improving sleep and chronic pain, promoting healthier behaviors). Participants also discussed ways in which mindfulness might be consistent with, and even enhance, their religious and spiritual practices. Results could be helpful in tailoring mindfulness-based treatments to optimize feasibility and effectiveness for low-SES adults receiving mental health services. PMID- 29333201 TI - Dispositional Mindfulness, Shame, and Compulsive Sexual Behaviors among Men in Residential Treatment for Substance Use Disorders. AB - Approximately 31% of men in treatment for a substance use disorders (SUD) engage in compulsive sexual behavior (CSB). Shame, a well-documented consequence of CSB, increases the likelihood of relapse following treatment for SUDs. Despite the risk of relapse, prior research has not investigated factors that may attenuate the relation between CSB and shame. Dispositional mindfulness is one such factor known to mitigate shame. However, researchers have yet to examine dispositional mindfulness as a moderator of the relationship between CSB and shame among a sample of men in treatment for SUDs. In an effort to inform intervention efforts, the present study aimed to investigate the hypothesis that CSB would not relate to shame among men with high, as opposed to low, levels of dispositional mindfulness. The present study reviewed medical records of 184 men in residential treatment for SUDs who completed cross-sectional measures of shame, CSB, dispositional mindfulness, and substance use problems. Results demonstrated a significant interaction between CSB and dispositional mindfulness such that CSB positively related to shame at low, but not mean or high, levels of dispositional mindfulness. These results support and extend previous mindfulness and CSB treatment research. Findings suggested that intervention efforts for CSB may benefit from increasing dispositional mindfulness in an effort to reduce shame related cognitions. PMID- 29333202 TI - Elasto-inertial migration of deformable capsules in a microchannel. AB - In this paper, we study the dynamics of deformable cells in a channel flow of Newtonian and polymeric fluids and unravel the effects of deformability, elasticity, inertia, and size on the cell motion. We investigate the role of polymeric fluids on the cell migration behavior and the performance of inertial microfluidic devices. Our results show that the equilibrium position of the cell is on the channel diagonal, in contrast to that of rigid particles, which is on the center of the channel faces for the same range of Reynolds number. A constant viscosity polymeric fluid, modeled using an Oldroyd-B constitutive equation, drives the cells toward the channel centerline, while a shear-thinning polymeric fluid, modeled using a Giesekus constitutive equation, pushes the cells toward the channel wall. The findings of this paper suggest that the addition of polymers in microfluidic devices can be used to enhance the throughput of cell focusing and separation devices at a low cost. This study provides an insight on the role of rheological properties of the fluid and the ways that they can be tuned to control the focal position of the cells. PMID- 29333203 TI - Biomimetic microfluidic platform for the quantification of transient endothelial monolayer permeability and therapeutic transport under mimicked cancerous conditions. AB - Therapeutic delivery from microvasculature to cancerous sites is influenced by many factors including endothelial permeability, vascular flow rates/pressures, cancer secretion of cytokines and permeabilizing agents, and characteristics of the chosen therapeutics. This work uses bi-layer microfluidics capable of studying dye and therapeutic transport from a simulated vessel to a cancerous region while allowing for direct visualization and quantification of endothelial permeability. 2.5 to 13 times greater dye transport was observed when utilizing small dye sizes (FITC) when compared to larger molecules (FITC-Dextran 4 kDa and FITC-Dextran 70 kDa), respectively. The use of lower flow rates/pressures is shown to improve dye transport by factors ranging from 2.5 to 5 times, which result from increased dye diffusion times within the system. Furthermore, subjecting confluent endothelial monolayers to cancerous cells resulted in increased levels of vascular permeability. Situations of cancer induced increases in vascular permeability are shown to facilitate enhanced dye transport when compared to non-diseased endothelial monolayers. Subsequent introduction of paclitaxel or doxorubicin into the system was shown to kill cancerous cells resulting in the recovery of endothelial confluency overtime. The response of endothelial cells to paclitaxel and doxorubicin is quantified to understand the direct influence of anti-cancer therapeutics on endothelial growth and permeability. Introduction of therapeutics into the system showed the recovery of endothelial confluency and dye transport back to conditions experienced prior to cancer cell introduction after 120 h of continuous treatment. Overall, the system has been utilized to show that therapeutic transport to cancerous sites depends on the size of the chosen therapeutic, the flow rate/pressure established within the vasculature, and the degree of cancer induced endothelial permeability. In addition, treatment of the cancerous region has been demonstrated with anti cancer therapeutics, which are shown to influence vascular permeability in direct (therapeutics themselves) and indirect (death of cancer cells) manners. Lastly, the system presented in this work is believed to function as a versatile testing platform for future anti-cancer therapeutic testing and development. PMID- 29333204 TI - Aggressive prostate cancer cell nuclei have reduced stiffness. AB - It has been hypothesized that highly metastatic cancer cells have softer nuclei and hence would travel faster through confining environments. Our goal was to prove this untested hypothesis for prostate cells. Our nuclear creep experiments using a microfluidic channel with a narrow constriction show that stiffness of aggressive immortalized prostate cancer nuclei is significantly lower than that of immortalized normal cell nuclei and hence can be a convenient malignancy marker. Nuclear stiffness is found to be the highest for cells expressing high levels of lamin A/C but lowest for cells expressing low lamin A/C levels. Decreased chromatin condensation found in softer nuclei suggests that the former can also be a marker for aggressive cancers. PMID- 29333205 TI - High aspect ratio induced spontaneous generation of monodisperse picolitre droplets for digital PCR. AB - Droplet microfluidics, which involves micrometer-sized emulsion droplets on a microfabricated platform, has been demonstrated as a unique system for many biological and chemical applications. Robust and scalable generation of monodisperse droplets at high throughput is of fundamental importance for droplet microfluidics. Classic designs for droplet generation employ shear fluid dynamics to induce the breakup of droplets in a two-phase flow and the droplet size is sensitive to flow rate fluctuations, often resulting in polydispersity. In this paper, we show spontaneous emulsification by a high aspect ratio (>3.5) rectangular nozzle structure. Due to the confinement and abrupt change of the structure, a Laplace pressure difference is generated between the dispersed and continuous phases, and causes the thread thinning and droplet pinch-off without the need to precisely control external flow conditions. A high-throughput droplet generator was developed by parallelization of a massive number of the basic structures. This device enabled facile and rapid partition of aqueous samples into millions of uniform picolitre droplets in oil. Using this device, on-chip droplet-based digital polymerase chain reaction (PCR) was performed for absolute quantification of rare genes with a wide dynamic range. PMID- 29333206 TI - Nonlinear Joint Latent Variable Models and Integrative Tumor Subtype Discovery. AB - Integrative analysis has been used to identify clusters by integrating data of disparate types, such as deoxyribonucleic acid (DNA) copy number alterations and DNA methylation changes for discovering novel subtypes of tumors. Most existing integrative analysis methods are based on joint latent variable models, which are generally divided into two classes: joint factor analysis and joint mixture modeling, with continuous and discrete parameterizations of the latent variables respectively. Despite recent progresses, many issues remain. In particular, existing integration methods based on joint factor analysis may be inadequate to model multiple clusters due to the unimodality of the assumed Gaussian distribution, while those based on joint mixture modeling may not have the ability for dimension reduction and/or feature selection. In this paper, we employ a nonlinear joint latent variable model to allow for flexible modeling that can account for multiple clusters as well as conduct dimension reduction and feature selection. We propose a method, called integrative and regularized generative topographic mapping (irGTM), to perform simultaneous dimension reduction across multiple types of data while achieving feature selection separately for each data type. Simulations are performed to examine the operating characteristics of the methods, in which the proposed method compares favorably against the popular iCluster that is based on a linear joint latent variable model. Finally, a glioblastoma multiforme (GBM) dataset is examined. PMID- 29333207 TI - Development and Feasibility of a Robotic Laparoscopic Clipping Tool for Wound Closure and Anastomosis. AB - This paper reports the design, development, and initial evaluation of a robotic laparoscopic clipping tool for single manipulator wound closure and anastomosis (tubular reconnection). The tool deploys biodegradable clips and clasps with the goal of (i) integrating grasping and suturing into a single device for single hand or manipulator use, (ii) applying the equivalent of interrupted sutures without the need of managing suture thread, and (iii) allowing for full six degrees-of-freedom (DOFs) laparoscopic control when mounted on a robot arm. The specifications, workflow, and detailed design of the robotic laparoscopic tool and injection molded bio-absorbable T shaped clip and locking clasp are reported. The clipping tool integrates forceps to grab and stabilize tissue and a clip and clasp applier to approximate and fixate the tissue. A curved needle is advanced on a circular needle path and picks up and drags clips through tissue. The clip is then tightened through the tissue and a clasp is clamped around the clip, before the clip is released from the needle. Results of several bench test runs of the tool show: (a) repeatable circular needle drive, (b) successful pick-up and deployment of clips, (c) successful shear of the clip to release the clip from the needle, and (d) closure of clasp on clip with an average of 2.0 N holding force. These data indicate that the robotic laparoscopic clipping tool could be used for laparoscopic wound closure and anastomosis. PMID- 29333208 TI - Integrating Cadaver Needle Forces Into a Haptic Robotic Simulator. AB - Accurate force simulation is essential to haptic simulators for surgical training. Factors such as tissue inhomogeneity pose unique challenges for simulating needle forces. To aid in the development of haptic needle insertion simulators, a handheld force sensing syringe was created to measure the motion and forces of needle insertions. Five needle insertions were performed into the neck of a cadaver using the force sensing syringe. Based on these measurements a piecewise exponential needle force characterization, was implemented into a haptic central venous catheterization (CVC) simulator. The haptic simulator was evaluated through a survey of expert surgeons, fellows, and residents. The maximum needle insertion forces measured ranged from 2.02 N to 1.20 N. With this information, four characterizations were created representing average, muscular, obese, and thin patients. The median survey results showed that users statistically agreed that "the robotic system made me sensitive to how patient anatomy impacts the force required to advance needles in the human body." The force sensing syringe captured force and position information. The information gained from this syringe was able to be implemented into a haptic simulator for CVC insertions, showing its utility. Survey results showed that experts, fellows, and residents had an overall positive outlook on the haptic simulator's ability to teach haptic skills. PMID- 29333209 TI - ? AB - [This corrects the article DOI: 10.11604/pamj.2016.25.142.7193.]. PMID- 29333210 TI - Bayesian analysis of stochastic volatility-in-mean model with leverage and asymmetrically heavy-tailed error using generalized hyperbolic skew Student's t distribution. AB - A stochastic volatility-in-mean model with correlated errors using the generalized hyperbolic skew Student-t (GHST) distribution provides a robust alternative to the parameter estimation for daily stock returns in the absence of normality. An efficient Markov chain Monte Carlo (MCMC) sampling algorithm is developed for parameter estimation. The deviance information, the Bayesian predictive information and the log-predictive score criterion are used to assess the fit of the proposed model. The proposed method is applied to an analysis of the daily stock return data from the Standard & Poor's 500 index (S&P 500). The empirical results reveal that the stochastic volatility-in-mean model with correlated errors and GH-ST distribution leads to a significant improvement in the goodness-of-fit for the S&P 500 index returns dataset over the usual normal model. PMID- 29333211 TI - Pomegranate Juice Prevents the Formation of Lung Nodules Secondary to Chronic Cigarette Smoke Exposure in an Animal Model. AB - Background: Cigarette smoke (CS) induces an oxidative stress, DNA damage, and lung cancer. Pomegranate juice (PJ) possess potent antioxidant activity attributed to its polyphenols. We investigated whether PJ supplementation would prevent the formation of lung nodules, attenuate mitotic activity, and reduce hypoxia-inducible factor-1alpha (HIF-1alpha) expression secondary to CS exposure in an animal model. Methods: Mice were divided into: Control group, CS group, CS + PJ group, and PJ-only group. CS and CS + PJ were exposed to CS, 5 days per week, for a total of 5 months. Animals were then housed for additional four months. CS + PJ and PJ groups received PJ throughout the experiment period while others received placebo. At the end of the experiment, the incidence of lung nodules was assessed by (1) histological analysis, (2) mitotic activity [measurement of PHH3 antibodies], and (3) measurement of HIF-1alpha expression. Results: The incidence of lung nodules was significantly increased in CS. CS exposure significantly increased PHH3 and HIF-1alpha expression. PJ supplementation attenuated the formation of lung nodules and reduced PHH3 and HIF 1alpha expression. Conclusion: PJ supplementation significantly decreased the incidence of lung cancer, secondary to CS, prevented the formation of lung nodules, and reduced mitotic activity and HIF-1alpha expression in an animal model. PMID- 29333212 TI - Effect of Bioactive Compound of Aronia melanocarpa on Cardiovascular System in Experimental Hypertension. AB - Aronia melanocarpa has attracted scientific interest due to its dense contents of different polyphenols. We aimed to analyse effects of Aronia melanocarpa (AME) extract on blood pressure (BP), lipid peroxidation, cytokine level, total NOS activity in the left ventricle (LV), and aorta of L-NAME-induced hypertensive rats. 12-week-old male WKY rats were assigned to the control group and groups treated with AME extract (57.90 mg/kg/day), L-NAME (40 mg/kg/day), or combination of L-NAME (40 mg/kg/day) and AME (57.90 mg/kg/day) in tap water for 3 weeks. NOS activity, eNOS protein expression, and conjugated diene (CD) concentration were determined in the LV and aorta. After 3 weeks of L-NAME treatment, BP was increased by 28% and concomitant treatment with AME reduced it by 21%. NOS activity of the LV and aorta in the L-NAME group was decreased by about 40%, while AME increased it almost on the control level. AME-induced eNOS upregulation may contribute to increase NOS activity. Moreover, AME decreased CD concentration in the LV and aorta and TNF-alpha and IL-6 production in the plasma were increased by L-NAME treatment. In conclusion, our results showed that active substances of Aronia melanocarpa may have a positive effect on blood pressure, NOS activity, and proinflammatory processes in L-NAME-induced hypertension. PMID- 29333214 TI - Cytoprotective Effects of Cell-Permeable Bifunctional Antioxidant Enzyme, GST-TAT SOD, against Cisplatin-Induced Cell Damage. AB - GST-TAT-SOD, a cell-permeable bifunctional antioxidant enzyme, is a potential selective radioprotector. This study aimed to investigate the cytoprotective activity of GST-TAT-SOD against cisplatin-induced damage. The current study showed that cisplatin induced the formation of reactive oxygen species in normal L-02 cells. GST-TAT-SOD (2000 U/mL) executed its antioxidant role by directly scavenging excess intracellular free radicals and augmenting cellular antioxidant defense such as reducing MDA level, enhancing the SOD activity, GST activity, and T-AOC. Thus, it suppressed the growth inhibition and apoptosis of cisplatin treated normal cells. Meanwhile, the growth inhibition of tumor cells (SMMC-7721) caused by cisplatin was unaffected by GST-TAT-SOD pretreatment. GST-SOD, as a comparison, seemed to be powerless for related indicators as it could not enter into cells without cell-permeating peptide. These results suggest that GST-TAT SOD might be a potential cytoprotective agent for cisplatin-induced side effects. PMID- 29333217 TI - Gender Differences in Clinical Profiles of Stress-Induced Cardiomyopathy. AB - Background: Although stress-induced cardiomyopathy (SCMP) is reported to be more common in women, little is known about gender differences in patients with SCMP. The aim of the study was to describe clinical features of patients with SCMP according to gender. Methods: One hundred and three patients diagnosed with definite SCMP at a single tertiary institute from January 1997 to August 2014 were enrolled. SCMP was more common in women than in men. Results: Age at presentation was not significantly different between the two groups (p = 0.758). Preceding physical stress, especially acute medical illness, was more common in male patients (p = 0.014), whereas emotional stress was more common in female patients (p = 0.016). Severity of medical illness classified by the Acute Physiology and Chronic Health Evaluation (APACHE) II score at the time of SCMP diagnosis was not significantly different between men and women (p = 0.752). Clinical characteristics, including symptoms, laboratory and electrocardiographic findings, were similar. However, pump failure was more severe in men (p = 0.024). Clinical outcomes were not statistically different (p = 0.220). Preceding physical stress and lower left ventricular systolic function after 2 months were independent risk factors for all-cause mortality for both genders. Women with an APACHE II score >= 15 and men with reduced left ventricular ejection fraction after 2 months had a greater risk of poor prognosis. Conclusion: SCMP was more common in female patients. Female patients more commonly experienced preceding emotional stress, whereas physical stress was more common in male patients. Systolic dysfunction was more severe in men. Long-term clinical outcomes appeared to be similar between men and women. PMID- 29333216 TI - Salidroside Inhibits HMGB1 Acetylation and Release through Upregulation of SirT1 during Inflammation. AB - HMGB1, a highly conserved nonhistone DNA-binding protein, plays an important role in inflammatory diseases. Once released to the extracellular space, HMGB1 acts as a proinflammatory cytokine that triggers inflammatory reaction. Our previous study showed that salidroside exerts anti-inflammatory effect via inhibiting the JAK2-STAT3 signalling pathway. However, whether salidroside inhibits the release of HMGB1 is still unclear. In this study, we aim to study the effects of salidroside on HMGB1 release and then investigate the potential molecular mechanisms. In an experimental rat model of sepsis caused by CLP, salidroside administration significantly attenuated lung injury and reduced the serum HMGB1 level. In RAW264.7 cells, we investigated the effects of salidroside on LPS induced HMGB1 release and then explored the underlying molecular mechanisms. We found that salidroside significantly inhibited LPS-induced HMGB1 release, and the inhibitory effect was correlated with the HMGB1 acetylation levels. Mechanismly, salidroside inhibits HMGB1 acetylation through the AMPK-SirT1 pathway. In addition, SirT1 overexpression attenuated LPS-induced HMGB1 acetylation and nucleocytoplasmic translocation. Furthermore, in SirT1 shRNA plasmid-transfected cells, salidroside treatment enhanced SirT1 expression and reduced LPS-activated HMGB1 acetylation and nucleocytoplasmic translocation. Collectively, these results demonstrated that salidroside might reduce HMGB1 release through the AMPK SirT1 signalling pathway and suppress HMGB1 acetylation and nucleocytoplasmic translocation. PMID- 29333218 TI - Impact of Mindfulness Based Stress Reduction Therapy on Myocardial Function and Endothelial Dysfunction in Female Patients with Microvascular Angina. AB - Background: Mindfulness-based stress reduction (MBSR) is a structured group program that employs mindfulness meditation to alleviate suffering associated with physical, psychosomatic, and psychiatric disorders. In this study, we investigate the impact of MBSR on left ventricular (LV) and endothelial function in female patients with microvascular angina. Methods: A total of 34 female patients (mean age 52.2 +/- 13.8 years) diagnosed with microvascular angina underwent a MBSR program with anti-anginal medication for 8 weeks. The global longitudinal strain (GLS) of the LV was used as a parameter to assess myocardial function and reactive brachial flow-mediated dilatation (FMD) was used to assess endothelial function. Symptoms were analyzed by the Symptom Checklist 90 Revised to determine emotional stress. Changes in GLS and FMD between baseline and post MBSR were analyzed. Results: After 8 weeks of programmed MBSR treatment, stress parameters were significantly decreased. In addition, GLS (-19.5 +/- 2.1% vs. 16.6 +/- 2.5%, p < 0.001) and reactive FMD significantly improved (8.9 +/- 3.0% vs. 6.9 +/- 2.6%, p = 0.005) after MBSR compared to baseline. The changes in GLS correlated to changes in FMD (r = 0.120, p = 0.340) and with the changes in most stress parameters. Conclusion: MBSR has beneficial impacts on myocardial and endothelial function in female patients with microvascular angina. PMID- 29333213 TI - Chronic Kidney Disease and Disproportionally Increased Cardiovascular Damage: Does Oxidative Stress Explain the Burden? AB - Chronic kidney disease (CKD) patients are among the groups at the highest risk for cardiovascular disease and significantly shortened remaining lifespan. CKD enhances oxidative stress in the organism with ensuing cardiovascular damage. Oxidative stress in uremia is the consequence of higher reactive oxygen species (ROS) production, whereas attenuated clearance of pro-oxidant substances and impaired antioxidant defenses play a complementary role. The pathophysiological mechanism underlying the increased ROS production in CKD is at least partly mediated by upregulation of the intrarenal angiotensin system. Enhanced oxidative stress in the setting of the uremic milieu promotes enzymatic modification of circulating lipids and lipoproteins, protein carbamylation, endothelial dysfunction via disruption of nitric oxide (NO) pathways, and activation of inflammation, thus accelerating atherosclerosis. Left ventricular hypertrophy (LVH) and heart failure are hallmarks of CKD. NADPH oxidase activation, xanthine oxidase, mitochondrial dysfunction, and NO-ROS are the main oxidative pathways leading to LVH and the cardiorenal syndrome. Finally, a subset of antioxidant enzymes, the paraoxonases (PON), deserves special attention due to abundant clinical evidence accumulated regarding reduced serum PON1 activity in CKD as a contributor to the increased burden of cardiovascular disease. Future, meticulously designed studies are needed to assess the effects of antioxidant therapy on patients with CKD. PMID- 29333219 TI - Clinical Utility of Echocardiography for Early and Late Pulmonary Hypertension in Preterm Infants: Relation with Bronchopulmonary Dysplasia. AB - Background: We evaluated early and late pulmonary hypertension (PH) in preterm infants and its relation with bronchopulmonary dysplasia (BPD). Methods: Sixty seven preterm infants < 30 weeks' gestation underwent echocardiography within 14 days after birth for early PH and over 28 days after birth for late PH. We measured tricuspid regurgitation (TR) peak velocity, pulse Doppler-derived myocardial performance index (MPI) of right ventricle (RV) (RV MPI), eccentricity index (EI), and tricuspid annular plane systolic excursion (TAPSE). Results: The median gestation age of patients was 27 weeks (range, 23-30 weeks) and median birth weight was 1030 g (range, 450-1780 g). TR peak velocity was measured only in 19 patients (28.4%). Patients with symptomatic early PH (n = 11) showed a significantly lower systolic EI and a significantly higher incidence of RV MPI > 0.38 and TAPSE < 0.5 cm than patients without PH. The incidence of symptomatic early PH was highest in severe BPD, although this was not statistically significant. Early echocardiographic parameters are not associated with BPD development. Patients with severe BPD showed a significantly higher RV MPI and a significantly higher incidence of RV MPI > 0.38 than patients with mild BPD, and a significantly lower systolic EI and a significantly higher incidence of systolic EI < 0.81 than patients without BPD. Conclusion: Systolic EI, RV MPI, and TAPSE were well represented symptomatic early PH, while systolic EI and RV MPI could be useful parameters for identifying late PH in preterm infants with BPD, even if they did not present PH symptoms. PMID- 29333221 TI - Horseshoe-like Shaped Atrial Septal Defects Confirmed on Three-Dimensional Transesophageal Echocardiography. PMID- 29333215 TI - Markers and Biomarkers of Endothelium: When Something Is Rotten in the State. AB - Endothelium is a community of endothelial cells (ECs), which line the blood and lymphatic vessels, thus forming an interface between the tissues and the blood or lympha. This strategic position of endothelium infers its indispensable functional role in controlling vasoregulation, haemostasis, and inflammation. The state of endothelium is simultaneously the cause and effect of many diseases, and this is coupled with modifications of endothelial phenotype represented by markers and with biochemical profile of blood represented by biomarkers. In this paper, we briefly review data on the functional role of endothelium, give definitions of endothelial markers and biomarkers, touch on the methodological approaches for revealing biomarkers, present an implicit role of endothelium in some toxicological mechanistic studies, and survey the role of reactive oxygen species (ROS) in modulation of endothelial status. PMID- 29333220 TI - Outcomes of Left Ventricular Function According to Treatment Response for a Patent Ductus Arteriosus in Preterm Infants. AB - Background: To evaluate the outcomes of left ventricular (LV) function according to treatment response for a hemodynamically significant patent ductus arteriosus (hsPDA) in preterm infants. Methods: Echocardiograms of 21 preterm infants born at gestational age < 31 weeks obtained at term-equivalent age were retrospectively studied. Among preterm infants with a hsPDA, 9 underwent ligation after failure of pharmacological closure (ligation group) and 6 experienced successful pharmacological closure (medication group). Six preterm infants without hsPDA (no-hsPDA group) were studied as controls. LV peak longitudinal systolic strain (epsilon) of each infant was retrospectively obtained from echocardiograms using velocity vector imaging, along with neonatal outcomes. Results: Pharmacological closures were attempted at postnatal day 2-3. In the ligation group, the median postnatal age at ligation was 20 days. In the ligation group, LV peak longitudinal systolic epsilon was significantly decreased at term equivalent age compared to the other groups. Between the medication and no-hsPDA groups, LV peak longitudinal systolic epsilon did not differ significantly. Among the neonatal outcomes, infants who experienced necrotizing enterocolitis (NEC) showed significantly decreased LV peak longitudinal systolic epsilon compared to the infants who did not experience NEC . Conclusion: We speculate that in preterm infants with an hsPDA, in cases of medical treatment failure, early PDA ligation at less than 20 days of postnatal age would be beneficial for preserving LV systolic function. PMID- 29333222 TI - Congenital Left Atrial Bands with Atrial Fibrillation. PMID- 29333224 TI - PRDI-BF1 and PRDI-BF1P isoform expressions correlate with disease status in multiple myeloma patients. PMID- 29333223 TI - Development of practical functional electrical stimulation cycling systems based on an electromyography study of the Cybathlon 2016. AB - The purpose of this study was to develop a functional electrical stimulation (FES) system based on the motor driving concept for use by spinal cord injury patients participating in the FES Cycling competition at the Cybathlon 2016. The proposed FES system consists of a low-power control system, a precise processor unit, and a 4-channel stimulation unit. Self-adhesive carbon conductive electrodes were utilized for stimulation. A 26-year-old SCI patient was qualified to participate in the competition. The pilot patient underwent training for 16 months, which included experience with FES stimulation, performing FES cycling, and reducing spasticity, to practice using the FES system. In addition, using surface electromyography (EMG) during cycling, the muscle activation pattern for generating the stimulation profile was applied and resulted in good performance. The best FES cycling performance the pilot achieved was 1000 meters translation with the cycling system during twelve minutes of using the FES system. The pilot achieved an 1000 meters translation mobility within an average of 16 minutes of cycling. Nevertheless, the system must be further investigated regarding muscle fatigue and other factors that may affect the stimulation conditions. PMID- 29333225 TI - A rare cause of pericardial effusion and ascites: POEMS syndrome. PMID- 29333226 TI - Expression of some ATP-binding cassette transporters in acute myeloid leukemia. PMID- 29333227 TI - Dasatinib-induced hemorrhagic colitis complicated with cytomegalovirus infection. PMID- 29333228 TI - Quantification of polysaccharides fixed to Gram stained slides using lactophenol cotton blue and digital image processing. AB - I discovered indigo rings and circles in Escherichia coli ATCC(r) 25922TM cultures when I added the non-specific polysaccharide stain lactophenol cotton blue to Gram stained slides sampled from 96-well plates used to measure quantitative growth kinetics (QGK) in virtual colony count antimicrobial assays. I attribute the dark blue staining to the presence of capsular polysaccharides and bacterial slime associated with clumps of cells. Since all bacterial cells are glycosylated, the majority of cells stain light blue. The contrast between dark and light staining is sufficient to enable a digital image processing thresholding technique to be quantitative for circular or ring-shaped structures that imply the presence of slime fixed to the glass. These polysaccharides indicate a possible mechanism of resistance to antimicrobial peptides such as defensins, lectins with high affinity for polysaccharides and glycosylated proteins. Adding lactophenol cotton blue to Gram stained slides is a quick and inexpensive way to screen cell cultures for bacterial slime, clumps and biofilms, revealing details of polysaccharide secretion that are missed using the Gram stain alone. Combined with QGK threshold times, the lactophenol cotton blue Gram stain followed by digital image processing provides quantitative information useful for quality control, environmental monitoring and detection of clumping environmental factors. PMID- 29333229 TI - Predicted protein interactions of IFITMs which inhibit Zika virus infection. AB - After the first reported case of Zika virus in Brazil, in 2015, a significant increase in the reported cases of microcephaly was observed. Microcephaly is a neurological condition in which the infant's head is significantly smaller with complications in brain development. Recently, two small membrane-associated interferon-inducible transmembrane proteins (IFITM1 and IFITM3) have been shown to repress members of the flaviviridae family which includes the Zika virus. However, the exact mechanisms leading to the inhibition of the virus are yet unknown. Here, we assembled an interactome of IFITM1 and IFITM3 with known protein-protein interactions (PPIs) collected from publicly available databases and novel PPIs predicted using High-confidence Protein-Protein Interaction Prediction (HiPPIP) model. We analyzed the functional and pathway associations of the interacting proteins, and found that there are several immunity pathways (interferon signaling, cd28 signaling in T-helper cells crosstalk between dendritic cells and natural killer cells), neuronal pathways (axonal guidance signaling, neural tube closure and actin cytoskeleton signaling) and developmental pathways that are associated with these interactors. These results could help direct future research in elucidating the mechanisms underlying the viral immunity to Zika virus and other flaviviruses. PMID- 29333230 TI - Funding knowledgebases: Towards a sustainable funding model for the UniProt use case. AB - Millions of life scientists across the world rely on bioinformatics data resources for their research projects. Data resources can be very expensive, especially those with a high added value as the expert-curated knowledgebases. Despite the increasing need for such highly accurate and reliable sources of scientific information, most of them do not have secured funding over the near future and often depend on short-term grants that are much shorter than their planning horizon. Additionally, they are often evaluated as research projects rather than as research infrastructure components. In this work, twelve funding models for data resources are described and applied on the case study of the Universal Protein Resource (UniProt), a key resource for protein sequences and functional information knowledge. We show that most of the models present inconsistencies with open access or equity policies, and that while some models do not allow to cover the total costs, they could potentially be used as a complementary income source. We propose the Infrastructure Model as a sustainable and equitable model for all core data resources in the life sciences. With this model, funding agencies would set aside a fixed percentage of their research grant volumes, which would subsequently be redistributed to core data resources according to well-defined selection criteria. This model, compatible with the principles of open science, is in agreement with several international initiatives such as the Human Frontiers Science Program Organisation (HFSPO) and the OECD Global Science Forum (GSF) project. Here, we have estimated that less than 1% of the total amount dedicated to research grants in the life sciences would be sufficient to cover the costs of the core data resources worldwide, including both knowledgebases and deposition databases. PMID- 29333231 TI - Using bio.tools to generate and annotate workbench tool descriptions. AB - Workbench and workflow systems such as Galaxy, Taverna, Chipster, or Common Workflow Language (CWL)-based frameworks, facilitate the access to bioinformatics tools in a user-friendly, scalable and reproducible way. Still, the integration of tools in such environments remains a cumbersome, time consuming and error prone process. A major consequence is the incomplete or outdated description of tools that are often missing important information, including parameters and metadata such as publication or links to documentation. ToolDog (Tool DescriptiOn Generator) facilitates the integration of tools - which have been registered in the ELIXIR tools registry (https://bio.tools) - into workbench environments by generating tool description templates. ToolDog includes two modules. The first module analyses the source code of the bioinformatics software with language specific plugins, and generates a skeleton for a Galaxy XML or CWL tool description. The second module is dedicated to the enrichment of the generated tool description, using metadata provided by bio.tools. This last module can also be used on its own to complete or correct existing tool descriptions with missing metadata. PMID- 29333232 TI - Highlights of the second ISCB Student Council Symposium in Africa, 2017. AB - Student Council Symposiums (SCSs) have been found to be very useful for students and young researchers. This is especially true given that the events are held directly before large international conferences, giving attendees a chance to gain exposure and have a warm up to the social nuances involved in attending such a meeting. This was the second SCS held in Africa in conjunction with the International Society for Computational Biology (ISCB) and the African Society for Bioinformatics and Computational Biology's (ASBCB) biennial meeting. This symposium was organised by students within the society inside Africa and was held on the 10 th of October 2017 in Entebbe, Uganda. PMID- 29333233 TI - On the primacy and irreducible nature of first-person versus third-person information. AB - In this essay, we will support the claim that a) some first-person accounts cannot be reduced to their third-person neural and psychophysiological correlates and b) that these first-person accounts are the only information to reckon when it is necessary to analyse qualia contents. Consequently, for many phenomena, first-person accounts are the only reliable source of information available and the knowledge of their neural and psychophysical correlates don't offer any additional information about them. PMID- 29333234 TI - Case Report: Laparoscopic hepatectomy in an elderly patient with major comorbidities. AB - Surgeons have been hesitant to proceed to hepatectomy in elderly patients, due to the higher rate of comorbidities and the reduced reserves. An 81-year-old male with hepatocellular carcinoma in the segment VI of the liver and several major cardiovascular, pulmonary and metabolic comorbid illnesses was referred to our department for treatment. He underwent transarterial chemoembolization of the liver tumor and afterwards he underwent laparoscopic resection of the hepatic segment VI, with an uneventful postoperative course. This case indicates the safety and feasibility of laparoscopic liver resections in older patients, even when major comorbidities are present, provided that there is a careful planning of therapeutic strategy and operation. PMID- 29333235 TI - Case Report: Synchronous primary malignancy including the breast and endometrium. AB - Breast and endometrial cancer are the most common types of female cancers, but the incidence of both of these malignancies in a single patient is a rare event. Multiple primary malignancy has been increasingly reported over the past decade, and double primary cancer is considered as the most common type. In this study, we present a 53-year-old woman with synchronous primary malignancy of breast and endometrium. This patient had a history of breast and endometrial cancer in her family. Mammography and chest CT of the patient revealed a mass in the right breast and left supraclavicular region. However, the patient did not want to initiate treatment. Subsequently, the patient returned with a chief complaint of persistent abnormal vaginal bleeding. Abdominopelvic CT scan of the patient revealed a huge soft tissue mass in the pelvic cavity. She underwent hysterectomy, and pathology revealed endometrioid carcinoma, which had invaded the full thickness of uterine wall. Since this type of malignancy is rare and several risk factors are associated with it, it is worth being considered by clinicians when making decisions about screening or strategy for prevention. PMID- 29333237 TI - Draft genome of tule elk Cervus elaphus nannodes. AB - This paper presents the first draft genome of the tule elk ( Cervus elaphus nannodes), a subspecies native to California that underwent an extreme genetic bottleneck in the late 1800s. The genome was generated from Illumina HiSeq 3000 whole genome sequencing of four individuals, resulting in the assembly of 2.395 billion base pairs (Gbp) over 602,862 contigs over 500 bp and N50 = 6,885 bp. This genome provides a resource to facilitate future genomic research on elk and other cervids. PMID- 29333236 TI - In silico analysis of natural compounds targeting structural and nonstructural proteins of chikungunya virus. AB - Background: Chikungunya fever presents as a high-grade fever during its acute febrile phase and can be prolonged for months as chronic arthritis in affected individuals. Currently, there are no effective drugs or vaccines against this virus. The present study was undertaken to evaluate protein-ligand interactions of all chikungunya virus (CHIKV) proteins with natural compounds from a MolBase library in order to identify potential inhibitors of CHIKV. Methods: Virtual screening of the natural compound library against four non-structural and five structural proteins of CHIKV was performed. Homology models of the viral proteins with unknown structures were created and energy minimized by molecular dynamic simulations. Molecular docking was performed to identify the potential inhibitors for CHIKV. The absorption, distribution, metabolism and excretion (ADME) toxicity parameters for the potential inhibitors were predicted for further prioritization of the compounds. Results: Our analysis predicted three compounds, Catechin-5-O gallate, Rosmarinic acid and Arjungenin, to interact with CHIKV proteins; two (Catechin-5-O-gallate and Rosmarinic acid) with capsid protein, and one (Arjungenin) with the E3. Conclusion: The compounds identified show promise as potential antivirals, but further in vitro studies are required to test their efficacy against CHIKV. PMID- 29333238 TI - A method to estimate the number of neurons supporting visual orientation discrimination in primates. AB - In this method article, we show how to estimate of the number of retinal ganglion cells (RGC), and the number of lateral genicular nucleus (LGN) and primary visual cortex (V1) neurons involved in visual orientation discrimination tasks. We reported the results of this calculation in Kanitscheider et al. (2015), where we were interested in comparing the number of neurons in the visual periphery versus visual cortex for a specific experiment. This calculation allows estimation of the information content at different stages of the visual pathway, which can be used to assess the efficiency of the computations performed. As these numbers are generally not readily available but may be useful to other researchers, we explain here in detail how we obtained them. The calculation is straightforward, and simply requires combining anatomical and physiological information about the macaque visual pathway. Similar information could be used to repeat the calculation for other species or modalities. PMID- 29333239 TI - The peer review process for awarding funds to international science research consortia: a qualitative developmental evaluation. AB - Background: Evaluating applications for multi-national, multi-disciplinary, dual purpose research consortia is highly complex. There has been little research on the peer review process for evaluating grant applications and almost none on how applications for multi-national consortia are reviewed. Overseas development investments are increasingly being channelled into international science consortia to generate high-quality research while simultaneously strengthening multi-disciplinary research capacity. We need a better understanding of how such decisions are made and their effectiveness. Methods: An award-making institution planned to fund 10 UK-Africa research consortia. Over two annual rounds, 34 out of 78 eligible applications were shortlisted and reviewed by at least five external reviewers before final selections were made by a face-to-face panel. We used an innovative approach involving structured, overt observations of award making panel meetings and semi-structured interviews with panel members to explore how assessment criteria concerning research quality and capacity strengthening were applied during the peer review process. Data were coded and analysed using pre-designed matrices which incorporated categories relating to the assessment criteria. Results: In general the process was rigorous and well managed. However, lack of clarity about differential weighting of criteria and variations in the panel's understanding of research capacity strengthening resulted in some inconsistencies in use of the assessment criteria. Using the same panel for both rounds had advantages, in that during the second round consensus was achieved more quickly and the panel had increased focus on development aspects. Conclusion: Grant assessment panels for such complex research applications need to have topic- and context-specific expertise. They must also understand research capacity issues and have a flexible but equitable and transparent approach. This study has developed and tested an approach for evaluating the operation of such panels and has generated lessons that can promote coherence and transparency among grant-makers and ultimately make the award-making process more effective. PMID- 29333240 TI - The use of dexmedetomidine and intravenous acetaminophen for the prevention of postoperative delirium in cardiac surgery patients over 60 years of age: a pilot study. AB - Background: Delirium is associated with many negative health outcomes. Postoperative sedation and opioid administration may contribute to delirium. We hypothesize that the use of dexmedetomidine and Intravenous acetaminophen (IVA) may lead to reduced opioid consumption and decreased incidence of postoperative delirium. This pilot study aims to assess feasibility of using dexmedetomidine and IVA in cardiac surgical patients, and obtain effect size estimates for incidence and duration of delirium. Methods: A total of 12 adult patients >60 years of age undergoing cardiac surgery were recruited for the study after IRB approval and randomized into 4 groups: Propofol only (P), Propofol with IVA (P+A), Dexmedetomidine only (D), Dexmedetomidine with IVA (D+A). Preoperative baseline cognition and postoperative delirium was assessed daily until discharge. The feasibility was assessed by the number of patients who successfully completed the study. Results: All patients completed the study protocol successfully. The total incidence of delirium in the study population was 42% (5/12): 67% (2/3) in the group P, and 67% (2/3) in the group D, 33% (1/3) in D+A group and 0%(0/3) P+A group. The incidence of delirium was 17% (1/6) in the group receiving IVA compared to 67% (4/6) that did not receive IVA. The mean duration of delirium was 0-1 days. One patient expired after surgery, unrelated to the study protocol. One patient in the D group experienced hypotension with systolic blood pressure <90 mm of Hg. Conclusions: The feasibility of performing a large-scale project is ascertained by the study. Patients receiving IVA had lower incidence of delirium compared to patients not receiving IVA which suggests that IVA may have a role in reducing the incidence of delirium. A prospective randomized, placebo-controlled trial will be the next step in investigating the role of dexmedetomidine and IVA in reducing the incidence of delirium. PMID- 29333241 TI - Developing data interoperability using standards: A wheat community use case. AB - In this article, we present a joint effort of the wheat research community, along with data and ontology experts, to develop wheat data interoperability guidelines. Interoperability is the ability of two or more systems and devices to cooperate and exchange data, and interpret that shared information. Interoperability is a growing concern to the wheat scientific community, and agriculture in general, as the need to interpret the deluge of data obtained through high-throughput technologies grows. Agreeing on common data formats, metadata, and vocabulary standards is an important step to obtain the required data interoperability level in order to add value by encouraging data sharing, and subsequently facilitate the extraction of new information from existing and new datasets. During a period of more than 18 months, the RDA Wheat Data Interoperability Working Group (WDI-WG) surveyed the wheat research community about the use of data standards, then discussed and selected a set of recommendations based on consensual criteria. The recommendations promote standards for data types identified by the wheat research community as the most important for the coming years: nucleotide sequence variants, genome annotations, phenotypes, germplasm data, gene expression experiments, and physical maps. For each of these data types, the guidelines recommend best practices in terms of use of data formats, metadata standards and ontologies. In addition to the best practices, the guidelines provide examples of tools and implementations that are likely to facilitate the adoption of the recommendations. To maximize the adoption of the recommendations, the WDI-WG used a community-driven approach that involved the wheat research community from the start, took into account their needs and practices, and provided them with a framework to keep the recommendations up to date. We also report this approach's potential to be generalizable to other (agricultural) domains. PMID- 29333243 TI - Unexpected results in Chernozem soil respiration while measuring the effect of a bio-fertilizer on soil microbial activity. AB - The number of studies investigating the effect of bio-fertilizers is increasing because of their importance in sustainable agriculture and environmental quality. In our experiments, we measured the effect of different fertilizers on soil respiration. In the present study, we were looking for the cause of unexpected changes in CO2 values while examining Chernozem soil samples. We concluded that CO2 oxidizing microbes or methanotrophs may be present in the soil that periodically consume CO2 . This is unusual for a sample taken from the upper layer of well-ventilated Chernozem soil with optimal moisture content. PMID- 29333242 TI - Predictive value of early postoperative IOP and bleb morphology in Mitomycin-C augmented trabeculectomy. AB - Background: Our aim was to determine the predictive value of postoperative bleb morphological features and intraocular pressure (IOP) on the success rate of trabeculectomy. Methods: In this prospective interventional case series, we analyzed for one year 80 consecutive primary open angle glaucoma patients who underwent mitomycin-augmented trabeculectomy. Bleb morphology was scored using the Indiana bleb appearance grading scale (IBAGS). Success was defined as IOP <=15 mmHg with or without medications at 12 months. We tested for IOP and bleb morphological differences between groups, applied a multivariable regression analysis and determined the area under the receiver operating characteristic curve (AUC). Results: Age and gender were equally distributed (62.3+/-13.1 years, P=0.911). IOP of patients with a successful outcome did not differ from unsuccessful ones on day 1, 7 and 30 (all P>=0.2). The AUC of IOP at day 1, day 7 and 30 for predicting a successful outcome was 0.355, 0.452, and 0.80, respectively. The AUC for bleb morphology parameters, bleb height, extension, and vascularization, on day 14 were 0.368, 0.408, and 0.549, respectively. Values for day 30 were 0.428, 0.563, and 0.654. IOP change from day 1 to day 30 was a good predictor of failure (AUC=0.838, 95% CI: 0.704 to 0.971) with a change of more than 3 mmHg predicting failure with a sensitivity of 82.5% (95% CI: 68 to 91%) and a specificity of 87.5% (95% CI: 53 to 98%). Conclusions: The postoperative IOP on day 30 had a fair to good accuracy while the bleb features failed to predict a successful outcome. An IOP increase by as little as more than 3 mmHg during the first 30 days was a good predictor of failure. PMID- 29333244 TI - Piscine birnavirus triggers antiviral immune response in trout red blood cells, despite not being infective. AB - Background: Some fish viruses, such as piscine orthoreovirus and infectious salmon anemia virus, target red blood cells (RBCs), highly replicate inside them and induce an immune response. However, the implications of RBCs in the context of birnavirus infection (i.e, infectious pancreatic necrosis virus (IPNV)) have not yet been studied. Methods:Ex vivo trout RBCs were obtained from peripheral blood, ficoll purified and exposed to IPNV in order to analyze infectivity and induced immune response using RT-qPCR, immune fluorescence imaging, flow cytometry and western-blotting techniques. Results: IPNV could not infect RBCs; however, IPNV-exposed RBCs increased the expression of the INF1-related genes ifn 1, pkr and mx genes. Moreover, conditioned media from IPNV-exposed RBCs conferred protection against IPNV infection in CHSE-214 fish cell line. Conclusions: Trout RBCs could trigger an antiviral immune response against IPNV infection despite not being infected. Fish RBCs could be considered mediators of the antiviral response and therefore targets of novel DNA vaccines and new strategies against fish viral infections. Further research is ongoing to completely understand the molecular mechanism that triggers this immune response in trout RBCs. PMID- 29333245 TI - The impact of fresh gas flow on wash-in, wash-out time and gas consumption for sevoflurane and desflurane, comparing two anaesthesia machines, a test-lung study. AB - Low-flow anaesthesia is considered beneficial for the patient and the environment, and it is cost reducing due to reduced anaesthetic gas consumption. An initial high-flow to saturate the circle system ( wash-in) is desirable from a clinical point of view. We measured the wash-in and wash-out times (time to saturate and to eliminate the anaesthetic agent, AA), for sevoflurane and desflurane, in a test-lung with fixed 3 MAC vaporizer setting at different fresh gas flow (FGF) and calculated the consumption of AA. We tried to find an optimal flow rate for speed and gas consumption, comparing two anaesthesia machines (AMs): Aisys and Flow-i. Time to reach 1 minimal alveolar concentration (MAC) (wash-in) decreased (p<0.05) at higher flow rates (1 - 2 - 4) but plateaued at 4 4.8 l/min. The consumption of AA was at its lowest around 4-4.8 l/min (optimal flow) for all but the Aisys /desflurane group. Wash-out times decreased as FGF increased, until reaching plateau at FGF of 4-6 l/min. Aisys had generally shorter wash-in times at flow rates < 4 l/min as well as lower consumption of AA. At higher flow rates there were little difference between the AMs. The "optimal FGF" for wash-out, elimination of gas from the test-lung and circle system, plateaued with no increase in speed beyond 6 l/min. A fresh gas flow of 4 l/min. seems "optimal" taking speed to reach a 1 MAC ET and gas consumption into account during wash-in with a fixed 3 MAC vaporizer setting, and increasing fresh gas flow beyond 6 l/min does not seem to confirm major benefit during wash-out. PMID- 29333246 TI - Easy and efficient ensemble gene set testing with EGSEA. AB - Gene set enrichment analysis is a popular approach for prioritising the biological processes perturbed in genomic datasets. The Bioconductor project hosts over 80 software packages capable of gene set analysis. Most of these packages search for enriched signatures amongst differentially regulated genes to reveal higher level biological themes that may be missed when focusing only on evidence from individual genes. With so many different methods on offer, choosing the best algorithm and visualization approach can be challenging. The EGSEA package solves this problem by combining results from up to 12 prominent gene set testing algorithms to obtain a consensus ranking of biologically relevant results.This workflow demonstrates how EGSEA can extend limma-based differential expression analyses for RNA-seq and microarray data using experiments that profile 3 distinct cell populations important for studying the origins of breast cancer. Following data normalization and set-up of an appropriate linear model for differential expression analysis, EGSEA builds gene signature specific indexes that link a wide range of mouse or human gene set collections obtained from MSigDB, GeneSetDB and KEGG to the gene expression data being investigated. EGSEA is then configured and the ensemble enrichment analysis run, returning an object that can be queried using several S4 methods for ranking gene sets and visualizing results via heatmaps, KEGG pathway views, GO graphs, scatter plots and bar plots. Finally, an HTML report that combines these displays can fast track the sharing of results with collaborators, and thus expedite downstream biological validation. EGSEA is simple to use and can be easily integrated with existing gene expression analysis pipelines for both human and mouse data. PMID- 29333247 TI - Differential methylation analysis of reduced representation bisulfite sequencing experiments using edgeR. AB - Studies in epigenetics have shown that DNA methylation is a key factor in regulating gene expression. Aberrant DNA methylation is often associated with DNA instability, which could lead to development of diseases such as cancer. DNA methylation typically occurs in CpG context. When located in a gene promoter, DNA methylation often acts to repress transcription and gene expression. The most commonly used technology of studying DNA methylation is bisulfite sequencing (BS seq), which can be used to measure genomewide methylation levels on the single nucleotide scale. Notably, BS-seq can also be combined with enrichment strategies, such as reduced representation bisulfite sequencing (RRBS), to target CpG-rich regions in order to save per-sample costs. A typical DNA methylation analysis involves identifying differentially methylated regions (DMRs) between different experimental conditions. Many statistical methods have been developed for finding DMRs in BS-seq data. In this workflow, we propose a novel approach of detecting DMRs using edgeR. By providing a complete analysis of RRBS profiles of epithelial populations in the mouse mammary gland, we will demonstrate that differential methylation analyses can be fit into the existing pipelines specifically designed for RNA-seq differential expression studies. In addition, the edgeR generalized linear model framework offers great flexibilities for complex experimental design, while still accounting for the biological variability. The analysis approach illustrated in this article can be applied to any BS-seq data that includes some replication, but it is especially appropriate for RRBS data with small numbers of biological replicates. PMID- 29333248 TI - Out-of-pocket health expenditure and fairness in utilization of health care facilities in Cambodia in 2005 and 2010. AB - Background: Out-of-pocket (OOP) payments for health care are highly pervasive in several low-and-middle income countries. The Cambodian health system has envisaged massive repositioning of various health care financing to ensure equitable access to health care. This analysis examines catastrophic, economic, as well as fairness, impacts of OOP health care payments on households in Cambodia over time. Methods: Data from two waves of a nationally representative household survey conducted in Cambodia (CDHS Surveys 2005 and 2010) were utilized. Healthcare utilizations based on economic status were compared during 2005 and 2010. Variables of interests were i) where care was sought and the instances of treatments, i.e. was treatment sought the first, second or third time; (ii) the mode of payment for treatment of the respondent or for any household member due to sickness or injury in the last 30 days prior to the survey period. Lorenz curves were applied to assess the degree of distribution of inequality in OOP expenditures between different income brackets. Results: The findings revealed that there was inequality and unfairness in health care payments, and catastrophic spending is more common among the poor in Cambodia. The majority of people from poorer households experienced economic hardship and have taken to catastrophic health care spending through sales of personal possessions. Conclusion: Based on the findings from this analysis, more attention is needed on effective financial protection for Cambodians to promote fairness. The government should increase spending on services being provided at public health care facilities to reduce ever increasing reliance on private sector providers. These approaches would go a long way to reduce the economic burden of care utilization among the poorest. PMID- 29333249 TI - Health Technology Assessment capacity development in low- and middle-income countries: Experiences from the international units of HITAP and NICE. AB - Health Technology Assessment (HTA) is policy research that aims to inform priority setting and resource allocation. HTA is increasingly recognized as a useful policy tool in low- and middle-income countries (LMICs), where there is a substantial need for evidence to guide Universal Health Coverage policies, such as benefit coverage, quality improvement interventions and quality standards, all of which aim at improving the efficiency and equity of the healthcare system. The Health Intervention and Technology Assessment Program (HITAP), Thailand, and the National Institute for Health and Care Excellence (NICE), UK, are national HTA organizations providing technical support to governments in LMICs to build up their priority setting capacity. This paper draws lessons from their capacity building programs in India, Colombia, Myanmar, the Philippines, and Vietnam. Such experiences suggest that it is not only technical capacity, for example analytical techniques for conducting economic evaluation, but also management, coordination and communication capacity that support the generation and use of HTA evidence in the respective settings. The learned lessons may help guide the development of HTA capacity in other LMICs. PMID- 29333250 TI - Retract p < 0.005 and propose using JASP, instead. AB - Seeking to address the lack of research reproducibility in science, including psychology and the life sciences, a pragmatic solution has been raised recently: to use a stricter p < 0.005 standard for statistical significance when claiming evidence of new discoveries. Notwithstanding its potential impact, the proposal has motivated a large mass of authors to dispute it from different philosophical and methodological angles. This article reflects on the original argument and the consequent counterarguments, and concludes with a simpler and better-suited alternative that the authors of the proposal knew about and, perhaps, should have made from their Jeffresian perspective: to use a Bayes factors analysis in parallel (e.g., via JASP) in order to learn more about frequentist error statistics and about Bayesian prior and posterior beliefs without having to mix inconsistent research philosophies. PMID- 29333251 TI - Can circulating tumor DNA be used for direct and early stage cancer detection? AB - In the August 16th issue of Science Translational Medicine, Phallen et al propose a method for early cancer diagnosis by using circulating tumor DNA (1). One major advance of this paper includes optimized sequencing of cell-free/circulating tumor DNA (ctDNA) without knowledge of tumor mutations. Evaluation of 200 patients with colorectal, breast, lung and ovarian cancer revealed mutations in ctDNA in approx. 60-70% of all patients, including stage 1 and stage 2 disease. If this data can be reproduced in asymptomatic individuals, they will likely have a major impact on early cancer detection and patient outcomes. In this commentary, we examine the feasibility of this approach for detecting small, asymptomatic tumors, based on previously published empirical data. PMID- 29333252 TI - Recent advances in pharmacological management of urinary incontinence. AB - Lower urinary tract symptoms-in particular, storage disorders (for example, urinary incontinence) as well as bladder underactivity-are major health-related problems that increase with age. Yet lower urinary tract symptoms remain under diagnosed and poorly managed, and incontinence has been cited as the major reason for institutionalization in elderly populations and is one of the most common conditions in primary care practice. Although lifestyle and behavior therapy has been used as a useful treatment regimen for urge incontinence, medications (often used as adjunct) can provide additional benefit. This review will include current therapies used for treatment of urinary incontinence. PMID- 29333253 TI - The stress concept in gastroenterology: from Selye to today. AB - More than eighty years after Hans Selye (1907-1982) first developed a concept describing how different types of environmental stressors affect physiological functions and promote disease development (called the "general adaptation syndrome") in 1936, we herein review advances in theoretical, mechanistic, and clinical knowledge in stress research, especially in the area of gastroenterology, and summarize progress and future perspectives arising from an interdisciplinary psychoneurobiological framework in which genetics, epigenetics, and other advanced ( omics) technologies in the last decade continue to refine knowledge about how stress affects the brain-gut axis in health and gastrointestinal disease. We demonstrate that neurobiological stress research continues to be a driving force for scientific progress in gastroenterology and related clinical areas, inspiring translational research from animal models to clinical applications, while highlighting some areas that remain incompletely understood, such as the roles of sex/gender and gut microbiota in health and disease. Future directions of research should include not only the genetics of the stress response and resilience but also epigenetic contributions. PMID- 29333254 TI - Better understanding of childhood asthma, towards primary prevention - are we there yet? Consideration of pertinent literature. AB - Asthma is a chronic disease, characterized by reversible airway obstruction, airway inflammation and hyper-reactivity. The prevalence of asthma has risen dramatically over the past decade, affecting around 300,000,000 people. The etiology is multifactorial, with genetic, epigenetic, developmental and environmental factors playing a role. A complex interaction between the intrauterine environment, the developing immune system, the infant's microbiome and infectious organisms may lead to the development of allergic sensitization and asthma. Thus, a large number of studies have investigated the risk factors for childhood asthma, with a meticulous search of modifiable factors that could aid in primary prevention. We present a current literature review from 2014-2017, as well as older classic publications, on the pathogenesis and the potential modifiable factors for primary prevention of asthma. No ideal preventive measure has yet been found. Rather, creating favorable prenatal and postnatal environments, minimal exposure to hostile environmental factors, prevention of infections in early life, allergic desensitization and nutritional modifications could possibly reduce asthma inception. In the era of personalized medicine, identifying individual risk factors and tailoring specific preventive measures is warranted. PMID- 29333256 TI - Pathophysiology and treatment of patients with beta-thalassemia - an update. AB - Thalassemia (thal) is an autosomal recessive, hereditary, chronic hemolytic anemia due to a partial or complete deficiency in the synthesis of alpha-globin chains (alpha-thal) or beta-globin chains (beta-thal) that compose the major adult hemoglobin (alpha 2beta 2). It is caused by one or more mutations in the corresponding genes. The unpaired globin chains are unstable; they precipitate intracellularly, resulting in hemolysis, premature destruction of red blood cell [RBC] precursors in the bone marrow, and a short life-span of mature RBCs in the circulation. The state of anemia is treated by frequent RBC transfusions. This therapy results in the accumulation of iron (iron overload), a condition that is exacerbated by the breakdown products of hemoglobin (heme and iron) and the increased iron uptake for the chronic accelerated, but ineffective, RBC production. Iron catalyzes the generation of reactive oxygen species, which in excess are toxic, causing damage to vital organs such as the heart and liver and the endocrine system. Herein, we review recent findings regarding the pathophysiology underlying the major symptoms of beta-thal and potential therapeutic modalities for the amelioration of its complications, as well as new modalities that may provide a cure for the disease. PMID- 29333257 TI - Recent advances on gradient hydrogels in biomimetic cartilage tissue engineering. AB - Articular cartilage (AC) is a seemingly simple tissue that has only one type of constituting cell and no blood vessels and nerves. In the early days of tissue engineering, cartilage appeared to be an easy and promising target for reconstruction and this was especially motivating because of widespread AC pathologies such as osteoarthritis and frequent sports-induced injuries. However, AC has proven to be anything but simple. Recreating the varying properties of its zonal structure is a challenge that has not yet been fully answered. This caused the shift in tissue engineering strategies toward bioinspired or biomimetic approaches that attempt to mimic and simulate as much as possible the structure and function of the native tissues. Hydrogels, particularly gradient hydrogels, have shown great potential as components of the biomimetic engineering of the cartilaginous tissue. PMID- 29333255 TI - In vivo genome editing in animals using AAV-CRISPR system: applications to translational research of human disease. AB - Adeno-associated virus (AAV) has shown promising therapeutic efficacy with a good safety profile in a wide range of animal models and human clinical trials. With the advent of clustered regulatory interspaced short palindromic repeat (CRISPR) based genome-editing technologies, AAV provides one of the most suitable viral vectors to package, deliver, and express CRISPR components for targeted gene editing. Recent discoveries of smaller Cas9 orthologues have enabled the packaging of Cas9 nuclease and its chimeric guide RNA into a single AAV delivery vehicle for robust in vivo genome editing. Here, we discuss how the combined use of small Cas9 orthologues, tissue-specific minimal promoters, AAV serotypes, and different routes of administration has advanced the development of efficient and precise in vivo genome editing and comprehensively review the various AAV-CRISPR systems that have been effectively used in animals. We then discuss the clinical implications and potential strategies to overcome off-target effects, immunogenicity, and toxicity associated with CRISPR components and AAV delivery vehicles. Finally, we discuss ongoing non-viral-based ex vivo gene therapy clinical trials to underscore the current challenges and future prospects of CRISPR/Cas9 delivery for human therapeutics. PMID- 29333258 TI - An RNA decay factor wears a new coat: UPF3B modulates translation termination. AB - Nonsense-mediated RNA decay (NMD) is a highly conserved and selective RNA turnover pathway that has been subject to intense scrutiny. NMD identifies and degrades subsets of normal RNAs, as well as abnormal mRNAs containing premature termination codons. A core factor in this pathway-UPF3B-is an adaptor protein that serves as an NMD amplifier and an NMD branch-specific factor. UPF3B is encoded by an X-linked gene that when mutated causes intellectual disability and is associated with neurodevelopmental disorders, including schizophrenia and autism. Neu-Yilik et al. now report a new function for UPF3B: it modulates translation termination. Using a fully reconstituted in vitro translation system, they find that UPF3B has two roles in translation termination. First, UPF3B delays translation termination under conditions that mimic premature translation termination. This could drive more efficient RNA decay by allowing more time for the formation of RNA decay-stimulating complexes. Second, UPF3B promotes the dissociation of post-termination ribosomal complexes that lack nascent peptide. This implies that UPF3B could promote ribosome recycling. Importantly, the authors found that UPF3B directly interacts with both RNA and the factors that recognize stop codons-eukaryotic release factors (eRFs)-suggesting that UPF3B serves as a direct regulator of translation termination. In contrast, a NMD factor previously thought to have a central regulatory role in translation termination-the RNA helicase UPF1-was found to indirectly interact with eRFs and appears to act exclusively in post-translation termination events, such as RNA decay, at least in vitro. The finding that an RNA decay-promoting factor, UFP3B, modulates translation termination has many implications. For example, the ability of UPF3B to influence the development and function of the central nervous system may be not only through its ability to degrade specific RNAs but also through its impact on translation termination and subsequent events, such as ribosome recycling. PMID- 29333259 TI - Predictors of outcome in phaeochromocytomas and paragangliomas. AB - Phaeochromocytomas and paragangliomas (PPGLs) are catecholamine-secreting neuroendocrine tumours characterised by high rates of heritability and genetic heterogeneity. Despite advances in the genetic diagnosis and improved understanding of the molecular aberrations underlying these tumours, predictive markers of malignancy remain scarce, limiting the outlook of patients with metastatic PPGL. The identification of robust predictive markers remains the most pressing challenge in PPGL management, so that the potential of targeted therapy to impact patient care can be fully realised. PMID- 29333261 TI - Sleep apnea and its role in transportation safety. AB - Obstructive sleep apnea (OSA) is a main cause of excessive daytime sleepiness and increases the risk for driving accidents, which can be normalized by treatment with continuous positive airway pressure ventilation. Since it is estimated that OSA is not diagnosed in about 80% of cases, recognition of patients at risk for driving accidents is a problem from both medical and societal points of view. Strategies to screen and identify subjects at high risk for driving accidents are under study in order to improve safety on the road, especially for commercial drivers, who show a high prevalence of OSA. PMID- 29333260 TI - Use of electroanalgesia and laser therapies as alternatives to opioids for acute and chronic pain management. AB - The use of opioid analgesics for postoperative pain management has contributed to the global opioid epidemic. It was recently reported that prescription opioid analgesic use often continued after major joint replacement surgery even though patients were no longer experiencing joint pain. The use of epidural local analgesia for perioperative pain management was not found to be protective against persistent opioid use in a large cohort of opioid-naive patients undergoing abdominal surgery. In a retrospective study involving over 390,000 outpatients more than 66 years of age who underwent minor ambulatory surgery procedures, patients receiving a prescription opioid analgesic within 7 days of discharge were 44% more likely to continue using opioids 1 year after surgery. In a review of 11 million patients undergoing elective surgery from 2002 to 2011, both opioid overdoses and opioid dependence were found to be increasing over time. Opioid-dependent surgical patients were more likely to experience postoperative pulmonary complications, require longer hospital stays, and increase costs to the health-care system. The Centers for Disease Control and Prevention emphasized the importance of finding alternatives to opioid medication for treating pain. In the new clinical practice guidelines for back pain, the authors endorsed the use of non-pharmacologic therapies. However, one of the more widely used non-pharmacologic treatments for chronic pain (namely radiofrequency ablation therapy) was recently reported to have no clinical benefit. Therefore, this clinical commentary will review evidence in the peer-reviewed literature supporting the use of electroanalgesia and laser therapies for treating acute pain, cervical (neck) pain, low back pain, persistent post-surgical pain after spine surgery ("failed back syndrome"), major joint replacements, and abdominal surgery as well as other common chronic pain syndromes (for example, myofascial pain, peripheral neuropathic pain, fibromyalgia, degenerative joint disease/osteoarthritis, and migraine headaches). PMID- 29333262 TI - Recent advances in the biology and therapy of medullary thyroid carcinoma. AB - Medullary thyroid cancer (MTC) is a relatively uncommon yet prognostically significant thyroid cancer. Several recent advances in the biology and current or potential treatment of MTC are notable. These include a new understanding of the developmental biology of the thyroid C cell, which heretofore was thought to develop from the neural crest. RET, encoded by the most common driver gene in MTC, has been shown to be a dual function kinase, thus expanding its potential substrate repertoire. Promising new therapeutic developments are occurring; many have recently progressed to clinical development. There are new insights into RET inhibitor therapy for MTC. New strategies are being developed to inhibit the RAS proteins, which are potential therapeutic targets in MTC. Potential emerging immunotherapies for MTC are discussed. However, gaps in our knowledge of the basic biology of the C cell, its transformation to MTC, and the mechanisms of resistance to therapy impede progress; further research in these areas would have a substantial impact on the field. PMID- 29333264 TI - How anthropogenic shifts in plant community composition alter soil food webs. AB - There are great concerns about the impacts of soil biodiversity loss on ecosystem functions and services such as nutrient cycling, food production, and carbon storage. A diverse community of soil organisms that together comprise a complex food web mediates such ecosystem functions and services. Recent advances have shed light on the key drivers of soil food web structure, but a conceptual integration is lacking. Here, we explore how human-induced changes in plant community composition influence soil food webs. We present a framework describing the mechanistic underpinnings of how shifts in plant litter and root traits and microclimatic variables impact on the diversity, structure, and function of the soil food web. We then illustrate our framework by discussing how shifts in plant communities resulting from land-use change, climatic change, and species invasions affect soil food web structure and functioning. We argue that unravelling the mechanistic links between plant community trait composition and soil food webs is essential to understanding the cascading effects of anthropogenic shifts in plant communities on ecosystem functions and services. PMID- 29333265 TI - The Effects of a Home-based Intervention Conducted by College Students for Young Children with Developmental Delays in Vietnam. AB - Objectives: The project assessed the efficacy of a home-based intervention program for young children (n= 64, ages ranging from 3-6 years) with developmental delays in Vietnam. It was hypothesized that the children in the intervention group would show greater progress in adaptive behavior than the children in the control group. Methods: Assessment of the program efficacy was carried out by comparing children who received services for 6 months and those who did not. Children who were recognized as having developmental delays by teachers in kindergarten programs, and confirmed by trained evaluators based on the Vineland Adaptive Behavior Scale-II (VABS-II), were randomly assigned to intervention and control groups. Twenty student teachers were recruited from a teaching university and were provided with pre-program training and ongoing supervision. Results: The outcomes of the program were examined at 0, 3, and 6 months using the VABS-II. The intervention group improved significantly more than the control group in overall adaptive functioning and in the areas of communication, social skills and motor skills. Conclusion: The project is one of only a few early intervention projects to apply randomized control trials in a low-middle-income country. The results demonstrate the feasibility of carrying out the intervention program using teachers with no prior experience of working with children with delays/disabilities, where professional resources are scarce for this population. PMID- 29333266 TI - Evaluation of a Health Education Intervention to Improve Knowledge, Skills, Behavioral Intentions and Resources Associated with Preventable Determinants of Infant Mortality. AB - Mississippi has the highest rate of infant mortality in the nation (9.3 infant deaths for 1,000 live births). A health disparity exists between white infants (6.2) and black infants (13.0). This project reports on the effectiveness of a pilot educational program, Healthy Moms and Healthy Babies, which sought to improve knowledge, skills, behavioral intentions and resources related to preventable determinants of infant mortality. A curriculum was developed and piloted with women who were currently pregnant, thinking of becoming pregnant or who had an infant <1 year old. Local Head Start Centers offered recruiting assistance and meeting space for the sessions. Six content areas were developed which addressed pre- and postnatal nutrition and physical activity, smoking, breastfeeding, maternal mental health and safe infant sleep. Sixteen objectives were evaluated to determine intervention effectiveness. Participants were very satisfied with the program overall. Fourteen of sixteen objectives were met. Unmet objectives were gaining the skill of interpreting a nutritional label (Objective 75.0%, Observed 71.4%) and being able to name five health benefits of breastfeeding (Objective 85.0%, Observed 81.0%). Future programs will incorporate participant feedback which included allowing more time to learn about interpreting food labels and addressing financial stress. Reducing preterm birth is a national public health priority. Addressing knowledge gaps through risk reduction education may reduce behaviors associated with determinants of infant mortality such as low birth weight and preterm birth. Head Start Centers are convenient locations that can serve as hubs of education for the entire family. Addressing knowledge gaps through risk-reduction education and providing adequate resources for smoking cessation and lactation support may increase knowledge and skills and reduce behaviors associated with determinants of infant mortality such as low birth weight and preterm birth. PMID- 29333263 TI - Vancomycin-resistant enterococcus infection in the hematopoietic stem cell transplant recipient: an overview of epidemiology, management, and prevention. AB - Vancomycin-resistant enterococcus (VRE) is now one of the leading causes of nosocomial infections in the United States. Hematopoietic stem cell transplantation (HSCT) recipients are at increased risk of VRE colonization and infection. VRE has emerged as a major cause of bacteremia in this population, raising important clinical questions regarding the role and impact of VRE colonization and infection in HSCT outcomes as well as the optimal means of prevention and treatment. We review here the published literature and scientific advances addressing these thorny issues and provide a rational framework for their approach. PMID- 29333267 TI - Type 1 diabetes genome-wide association studies: not to be lost in translation. AB - Genetic studies have identified >60 loci associated with the risk of developing type 1 diabetes (T1D). The vast majority of these are identified by genome-wide association studies (GWAS) using large case-control cohorts of European ancestry. More than 80% of the heritability of T1D can be explained by GWAS data in this population group. However, with few exceptions, their individual contribution to T1D risk is low and understanding their function in disease biology remains a huge challenge. GWAS on its own does not inform us in detail on disease mechanisms, but the combination of GWAS data with other omics-data is beginning to advance our understanding of T1D etiology and pathogenesis. Current knowledge supports the notion that genetic variation in both pancreatic beta cells and in immune cells is central in mediating T1D risk. Advances, perspectives and limitations of GWAS are discussed in this review. PMID- 29333269 TI - The immune system of the liver: 50 years of strangeness. PMID- 29333268 TI - Progress of genome-wide association studies of ankylosing spondylitis. AB - Ankylosing spondylitis (AS) is an immune-mediated arthritis which primarily affects the spine and sacroiliac joints. Significant progress has been made in discovery of genetic associations with AS by genome-wide association studies (GWAS) over past decade. These findings have uncovered novel pathways involved pathogenesis of the disease and have led to introduction of novel therapeutic treatments for AS. In this Review, we discuss the genetic variations associated with AS identified by GWAS, the major pathways revealed by these AS-associated variations and critical cell types involved in AS development. PMID- 29333271 TI - Childhood asthma prevalence: cross-sectional record linkage study comparing parent-reported wheeze with general practitioner-recorded asthma diagnoses from primary care electronic health records in Wales. AB - Introduction: Electronic health records (EHRs) are increasingly used to estimate the prevalence of childhood asthma. The relation of these estimates to those obtained from parent-reported wheezing suggestive of asthma is unclear. We hypothesised that parent-reported wheezing would be more prevalent than general practitioner (GP)-recorded asthma diagnoses in preschool-aged children. Methods: 1529 of 1840 (83%) Millennium Cohort Study children registered with GPs in the Welsh Secure Anonymised Information Linkage databank were linked. Prevalences of parent-reported wheezing and GP-recorded asthma diagnoses in the previous 12 months were estimated, respectively, from parent report at ages 3, 5, 7 and 11 years, and from Read codes for asthma diagnoses and prescriptions based on GP EHRs over the same time period. Prevalences were weighted to account for clustered survey design and non-response. Cohen's kappa statistics were used to assess agreement. Results: Parent-reported wheezing was more prevalent than GP recorded asthma diagnoses at 3 and 5 years. Both diminished with age: by age 11, prevalences of parent-reported wheezing and GP-recorded asthma diagnosis were 12.9% (95% CI 10.6 to 15.4) and 10.9% (8.8 to 13.3), respectively (difference: 2% (-0.5 to 4.5)). Other GP-recorded respiratory diagnoses accounted for 45.7% (95% CI 37.7 to 53.9) and 44.8% (33.9 to 56.2) of the excess in parent-reported wheezing at ages 3 and 5 years, respectively. Conclusion: Parent-reported wheezing is more prevalent than GP-recorded asthma diagnoses in the preschool years, and this difference diminishes in primary school-aged children. Further research is needed to evaluate the implications of these differences for the characterisation of longitudinal childhood asthma phenotypes from EHRs. PMID- 29333270 TI - Lessons from ten years of genome-wide association studies of asthma. AB - Twenty-five genome-wide association studies (GWAS) of asthma were published between 2007 and 2016, the largest with a sample size of 157242 individuals. Across these studies, 39 genetic variants in low linkage disequilibrium (LD) with each other were reported to associate with disease risk at a significance threshold of P<5 * 10-8, including 31 in populations of European ancestry. Results from analyses of the UK Biobank data (n=380 503) indicate that at least 28 of the 31 associations reported in Europeans represent true-positive findings, collectively explaining 2.5% of the variation in disease liability (median of 0.06% per variant). We identified 49 transcripts as likely target genes of the published asthma risk variants, mostly based on LD with expression quantitative trait loci (eQTL). Of these genes, 16 were previously implicated in disease pathophysiology by functional studies, including TSLP, TNFSF4, ADORA1, CHIT1 and USF1. In contrast, at present, there is limited or no functional evidence directly implicating the remaining 33 likely target genes in asthma pathophysiology. Some of these genes have a known function that is relevant to allergic disease, including F11R, CD247, PGAP3, AAGAB, CAMK4 and PEX14, and so could be prioritized for functional follow-up. We conclude by highlighting three areas of research that are essential to help translate GWAS findings into clinical research or practice, namely validation of target gene predictions, understanding target gene function and their role in disease pathophysiology and genomics-guided prioritization of targets for drug development. PMID- 29333272 TI - Peracetic acid disinfection kinetics for combined sewer overflows: indicator organisms, antibiotic resistance genes, and microbial community. AB - Combined sewer overflows (CSOs) degrade water quality and end-of-pipe treatment is one potential solution for retrofitting this outdated infrastructure. The goal of this research was to evaluate peracetic acid (PAA) as a disinfectant for CSOs using viability based molecular methods for antibiotic resistance genes (ARGs), indicator organism marker gene BacHum, and 16S rRNA genes. Simulated CSO effluent was prepared using 23-40% wastewater, representing the higher end of the range of wastewater concentrations reported in CSO effluent. PAA residual following disinfection was greatest for samples with the lowest initial COD. Treatment of simulated CSO effluent (23% wastewater) with 100 mg?min/L PAA (5 mg/L PAA, 20 min) was needed to reduce viable cell sul1, tet(G), and BacHum (1.0+/-0.63-3.2+/ 0.25-log) while 25 to 50 mg*min/L PAA (5 mg/L PAA, 5-10 min) was needed to reduce viable cell loads (0.62+/-0.56-1.6+/-0.08-log) in 40% wastewater from a different municipal treatment plant. Increasing contact time after the initial decrease in viable cell gene copies did not significantly improve treatment. A much greater applied Ct of 1200 mg?min/L PAA (20 mg/L PAA, 60 min) was required for significant log reduction of 16S rRNA genes (3.29+/-0.13-log). No significant losses of mexB were observed during the study. Data were fitted to a Chick-Watson model and resulting inactivation constants for sul1 and tet(G) > BacHum > 16S rRNA. Amplicon sequencing of the 16S rRNA gene indicated the initial viable and total microbial communities were distinct and that treatment with PAA resulted in marked increases of the relative abundance of select phyla, particularly Clostridia which increased by 1-1.5 orders of magnitude. Results confirm that membrane disruption is a mechanism for PAA disinfection and further treatment is needed to reduce total ARGs in CSO effluent. PMID- 29333273 TI - Changes in androstenedione, dehydroepiandrosterone, testosterone, estradiol, and estrone over the menopausal transition. AB - Background: Previous reports have noted that dehydroepiandrosterone-sulfate (DHEAS) increases prior to the final menstrual period (FMP) and remains stable beyond the FMP. How DHEAS concentrations correspond with other sex hormones across the menopausal transition (MT) including androstenedione (A4), testosterone (T), estrone (E1), and estradiol (E2) is not known. Our objective was to examine how DHEAS, A4, T, E1, and E2 changed across the MT by White vs. African-American (AA) race/ethnicity. Methods: We conducted a longitudinal observational analysis of a subgroup of women from the Study of Women's Health Across the Nation observed over 4 visits prior to and 4 visits after the FMP (n = 110 women over 9 years for 990 observations). The main outcome measures were DHEAS, A4, T, E1, and E2. Results: Compared to the decline in E2 concentrations, androgen concentrations declined minimally over the MT. T (beta 9.180, p < 0.0001) and E1 (beta 11.365, p < 0.0001) were higher in Whites than in AAs, while elevations in DHEAS (beta 28.80, p = 0.061) and A4 (beta 0.2556, p = 0.052) were borderline. Log-transformed E2 was similar between Whites and AAs (beta 0.0764, p = 0.272). Body mass index (BMI) was not significantly associated with concentrations of androgens or E1 over time. Conclusion: This report suggests that the declines in E2 during the 4 years before and after the FMP are accompanied by minimal changes in DHEAS, A4, T, and E1. There are modest differences between Whites and AAs and minimal differences by BMI. PMID- 29333274 TI - Report of an Italian family carrying a typical Indian variant of the Nilgiris tribal groups resulting from a de novo occurrence. AB - G6PD deficiency is quite common in Italy where it is characterized by extreme molecular and biochemical heterogeneity. We report a 15-year-old Italian boy with G6PD Nilgiri (c.593G>A, p.Arg198His), a typical Indian variant of the Nilgiris tribal groups. Further, this variant was biochemically characterized, and the molecular screening of the family highlighted a de novo mutational event. To date, this family is the first Caucasian family carrying the G6PD Nilgiri variant. PMID- 29333275 TI - Barriers to care for chronic hepatitis C in the direct-acting antiviral era: a single-centre experience. AB - Background: Cure rates for chronic hepatitis C have improved dramatically with direct-acting antivirals (DAAs), but treatment barriers remain. We aimed to compare treatment initiation rates and barriers across both interferon-based and DAA-based eras. Methods: We conducted a retrospective cohort study of all patients with chronic hepatitis C seen at an academic hepatology clinic from 1999 to 2016. Patients were identified to have chronic hepatitis C by the International Classification of Diseases, Ninth Revision codes, and the diagnosis was validated by chart review. Patients were excluded if they did not have at least one visit in hepatology clinic, were under 18 years old or had prior treatment with DAA therapy. Patients were placed in the DAA group if they were seen after 1 January 2014 and had not yet achieved virological cure with prior treatment. All others were considered in the interferon group. Results: 3202 patients were included (interferon era: n=2688; DAA era: n=514). Despite higher rates of decompensated cirrhosis and medical comorbidities in the DAA era, treatment and sustained virological response rates increased significantly when compared with the interferon era (76.7% vs 22.3%, P<0.001; 88.8% vs 55%, P<0.001, respectively). Lack of follow-up remained a significant reason for non-treatment in both groups (DAA era=24% and interferon era=45%). An additional 8% of patients in the DAA era were not treated due to insurance or issues with cost. In the DAA era, African-Americans, compared with Caucasians, had significantly lower odds of being treated (OR=0.37, P=0.02). Conclusions: Despite higher rates of medical comorbidities in the DAA era, considerable treatment challenges remain including cost, loss to follow-up and ethnic disparities. PMID- 29333276 TI - Neuropsychiatric performance and treatment of hepatitis C with direct-acting antivirals: a prospective study. AB - Background: Since direct-acting antivirals (DAAs) have been approved for the treatment of hepatitis C virus (HCV) infection, a small series of patients with new-onset neuropsychiatric alterations have been referred to us. We therefore set out to study neuropsychiatric function in relation to DAAs prospectively. Methods: Ten patients with cirrhosis and 12 post-liver transplant (post-LT) patients were enrolled. All underwent wake electroencephalography (EEG) and a neuropsychological evaluation (paper and pencil battery, simple/choice reaction times, working memory task) at baseline, at the end of treatment with DAAs and after 6 months. At the same time points, full blood count, liver/kidney function tests, quantitative HCV RNA, ammonia and immunosuppressant drug levels were obtained, as appropriate. Results: Patients with cirrhosis were significantly older than post-LT patients (65+/-12 vs 55+/-7 years; P<0.05). Neuropsychological performance and wake EEG were comparable in the two groups at baseline. At the end of a course of treatment with DAAs, a significant slowing in choice reaction times and in the EEG (increased relative delta power) was observed in patients with cirrhosis, which resolved after 6 months. In contrast, no significant changes over time were observed in the neuropsychiatric performance of post-LT patients. No significant associations were observed between neuropsychiatric performance and stand-alone/combined laboratory variables. Conclusion: Some degree of neuropsychiatric impairment was observed in relation to treatment with DAAs in patients with cirrhosis, but not in post-LT patients, suggesting that the former may be sensitive to mild DAA neurotoxicity. PMID- 29333277 TI - Familial risks for gallstones in the population of Sweden. AB - Objectives: Gallstone disease (cholelithiasis) has a familial component, but detailed data on the modification of familial risk are lacking. Using nationwide hospital and population records, we aimed to determine detailed familial risks for medically diagnosed gallstone disease. Design: Subjects were obtained from the Multigeneration Register, which contains family data on the Swedish population, and patients with gallstone disease were identified from the Hospital Discharge Register (1964-2015) and the Outpatient Register (2001-2015). Standardised incidence ratios (SIRs) were calculated as the ratio of observed to expected number of cases. Results: Gallstone disease was diagnosed in 660 732 patients, with an overall incidence of 131 per 100 000 person-years. Familial cases accounted for 36.0% of all patients with gallstone disease. Of these, 50.9% had a parental family history (SIR 1.62), 35.1% had a sibling history (SIR 1.75) and 14.0% had a parental+sibling history (SIR 2.58). Among a total of 54 630 affected siblings, 84.4% were sibling pairs (SIR 1.55). However, the remaining 15.6% of the affected siblings constituted the high-risk group of multiple affected siblings and an SIR >10; these persons accounted for 7.7% of all familial cases. The spousal risk was only slightly increased to 1.18. Conclusions: Overall, the results point to the underlying genetic causes for the observed familial clustering, which may involve polygenic gene-environmental interactions for most familial cases but high-risk genes in close to 10% of cases. Family histories should be taken into account in the medical setting and used for counselling of at-risk individuals. PMID- 29333278 TI - Clinical influence of exercise therapy on sarcopenia in patients with chronic pancreatitis: a study protocol for a randomised controlled trial. AB - Introduction and purpose: Chronic pancreatitis (CP) involves progressive inflammatory changes to the pancreas and can lead to permanent structural damage and impairment of both endocrine and exocrine functions. Current reports highlight a rise in the incidence and prevalence of CP. However, there is limited data currently available concerning patients with CP undergoing exercise therapy (ET). We aim to prospectively examine the influence of ET on sarcopenia in patients with CP. Methods and analysis: A detailed evaluation of the nutritional condition and the daily physical activities of each participant will be conducted prior to entering the study. Our patients will be randomly allocated to either: (1) the ET group or (2) the control group. In the ET group, our patients with CP will receive nutritional guidance once a month. The patients with CP will also be instructed to perform exercises with >3 metabolic equivalents (mets; energy consumption in physical activities/resting metabolic rate) for 60 min/day and to perform exercises >23 mets/week. The primary end point will be an improvement in sarcopenia, defined as an increase in muscle mass and muscle strength, at 3 months postrandomisation. A comparison of the amelioration of sarcopenia in the two groups will be undertaken. Ethics and dissemination: The Institutional Review Board at Hyogo College of Medicine approved this study protocol (approval no. 2766). Final data will be publicly announced. A report releasing the study results will be submitted for publication to an appropriate journal. Trial registration number: UMIN000029263; Pre-results. No patient is registered at the submission of our manuscript. PMID- 29333280 TI - Correction: ProNGF-p75NTR axis plays a proinflammatory role in inflamed joints: a novel pathogenic mechanism in chronic arthritis. AB - [This corrects the article DOI: 10.1136/rmdopen-2017-000441.][This corrects the article DOI: 10.1136/rmdopen-2017-000441.]. PMID- 29333279 TI - Increased supraspinatus tendon thickness following fatigue loading in rotator cuff tendinopathy: potential implications for exercise therapy. AB - Background/aim: Exercise imparts a load on tendon tissue that leads to changes in tendon properties. Studies suggest that loading immediately reduces tendon thickness, with a loss of this response in symptomatic tendinopathy. No studies investigating the response of tendon dimensions to load for the rotator cuff tendons exist. This study aimed to examine the short-term effect of loading on the thickness of the supraspinatus tendon and acromiohumeral distance those with and without rotator cuff tendinopathy. Methods: Participants were 20 painfree controls, and 23 people with painful rotator cuff tendinopathy. Supraspinatus tendon thickness and acromiohumeral distance were measured using ultrasound scans before, and at three time points after loading (1, 6 and 24 hours). Loading involved isokinetic eccentric and concentric external rotation and abduction. Results: There was a significant increase in supraspinatus tendon thickness in the pain group at 1 (7%, ?=0.38, 95% CI 0.19 to 0.57) and 6 hours (11%, ?=0.53, 95% CI 0.34 to 0.71), although only the 6 hours difference exceeded minimal detectable difference. In contrast, there was a small non-significant reduction in thickness in controls. The acromiohumeral distance reduced significantly in both groups at 1 hour (controls: ?=0.64, 95% CI 0.38 to 0.90; pain: ?=1.1, 95% CI 0.85 to 1.33), with a larger change from baseline in the pain group. Conclusion: Those diagnosed with painful supraspinatus tendinopathy demonstrated increased thickening with delayed return to baseline following loading. Rehabilitation professionals may need to take into account the impact of loading to fatigue when planning rehabilitation programmes. PMID- 29333281 TI - Controversies and consensus of neoadjuvant chemotherapy in soft-tissue sarcomas. AB - Together with surgery and radiotherapy, systemic treatment with cytotoxic chemotherapy and molecular targeted agents is one of the main therapeutic pillars in the treatment of soft-tissue sarcomas and is the mainstay of treatment in patients with advanced or metastatic disease. Unlike other more common malignancies such as breast and colorectal cancer, the role of chemotherapy when used in the adjuvant setting in soft-tissue sarcomas is less well defined. Results from prior studies have been conflicting, in part due to the heterogeneity and rarity of the disease, and large-scale meta-analysis has been performed to address this issue. Neoadjuvant chemotherapy, defined as the use of chemotherapy before definitive treatment with surgery or radiotherapy, has distinct theoretical and practical advantages, which can potentially be beneficial to the patient. However, the currently available evidence to support its use is even more scarce. In this review article, we describe the current established data behind the use of adjuvant chemotherapy in selected patients with localised soft-tissue sarcomas and, through extrapolation of available data, discuss the potential role of it when used in the upfront setting. PMID- 29333283 TI - Adverse effects of exposure to armed conflict on pregnancy: a systematic review. AB - Introduction: Exposure to armed conflict has manifold implications for both military and civilian populations. Prenatal stress has detrimental effects on both obstetric outcomes, fetal development and the development of an individual later in life. As well as causing stress to the mother, armed conflicts can decimate local infrastructures making it increasingly difficult to access antenatal and general healthcare. The present review is particularly salient in light of the many ongoing current conflicts. It examines the impacts of exposure to armed conflicts on the pregnancy outcomes. Methods: A thorough literature search was carried out on three databases using MeSH and truncation terms. 13 studies were included in the final analysis relating to mothers exposed to armed conflicts since 1990. Results: The studies include data from 1 172 151 patients: mothers from Libya, Bosnia, Herzegovina, Israel, Palestine, Kosovo, Yugoslavia, Nepal, Somalia, Iraq, Kuwait and Afghanistan. There is evidence of an increased risk of mothers giving birth to babies of low birth weight as reported in nine included studies. All have a degree of bias, with four at lower and five at higher risk of bias, either not adjusting for confounders or not employing robust measures of exposure to conflict. Further evidence suggested an increase in the incidence of miscarriage, stillbirth, prematurity, congenital abnormalities, miscarriage and premature rupture of membranes among mothers exposed to armed conflict. Conclusion: Despite the varying degrees of bias which must be considered for the available evidence, the data with the lowest risk of bias suggest a relationship between exposure to armed conflict and low birth weight. In light of the current level of displacement experienced by such populations, the identification of pregnancies at risk could improve the efficacy of antenatal care. Clinicians should consider additional ultrasound scanning where appropriate to monitor for restricted growth in such pregnancies. PMID- 29333282 TI - Relationship between growth and illness, enteropathogens and dietary intakes in the first 2 years of life: findings from the MAL-ED birth cohort study. AB - Background: Dietary and illness factors affect risk of growth faltering; the role of enteropathogens is less clear. As part of the Etiology, Risk Factors and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) study, we quantify the effects of enteropathogen infection, diarrhoea and diet on child growth. Methods: Newborns were enrolled and followed until 24 months. Length and weight were assessed monthly. Illnesses and breastfeeding practices were documented biweekly; from 9 to 24 months, non-breast milk intakes were quantified monthly. Routinely collected non-diarrhoeal stools were analysed for a broad array of enteropathogens. A linear piecewise spline model was used to quantify associations of each factor with growth velocity in seven of eight MAL-ED sites; cumulative effects on attained size at 24 months were estimated for mean, low (10th percentile) and high (90th percentile) exposure levels. Additionally, the six most prevalent enteropathogens were evaluated for their effects on growth. Results: Diarrhoea did not have a statistically significant effect on growth. Children with high enteropathogen exposure were estimated to be 1.21+/-0.33 cm (p<0.001; 0.39 length for age (LAZ)) shorter and 0.08+/-0.15 kg (p=0.60; 0.08 weight-for-age (WAZ)) lighter at 24 months, on average, than children with low exposure. Campylobacter and enteroaggregativeEscherichia coli detections were associated with deficits of 0.83+/-0.33 and 0.85+/-0.31 cm in length (p=0.011 and 0.001) and 0.22+/-0.15 and 0.09+/-0.14 kg in weight (p=0.14 and 0.52), respectively. Children with low energy intakes and protein density were estimated to be 1.39+/-0.33 cm (p<0.001; 0.42 LAZ) shorter and 0.81+/-0.15 kg (p<0.001; 0.65 WAZ) lighter at 24 months than those with high intakes. Conclusions: Reducing enteropathogen burden and improving energy and protein density of complementary foods could reduce stunting. PMID- 29333285 TI - Wealth inequality as a predictor of HIV-related knowledge in Nigeria. AB - Introduction: Considering the high state-level heterogeneity of HIV prevalence and socioeconomic characteristics in Nigeria, it is a relevant setting for studies into the socioeconomic correlates of HIV-related knowledge. Although the relationship between absolute poverty and HIV transmission has been studied, the role of wealth inequality in the dynamics of the HIV epidemic has yet to be investigated in Nigeria. The current study, therefore, investigates wealth inequality and other sociodemographic covariates as predictors of HIV-related knowledge, in order to identify subgroups of the Nigerian population that would benefit from HIV preventive interventions. Methods: This study used the nationally representative 2013 Nigerian Demographic and Health Survey (NDHS). HIV related knowledge was computed as a total score based on HIV-related knowledge indicators in the NDHS, dichotomised using the sample median as the cut-off. Wealth inequality and other relevant sociodemographic variables were introduced into a logistic regression model based on their significance in bivariate analyses. ORs derived from the model were interpreted to identify risk groups for low HIV-related knowledge after adjusting for confounding factors. Results: The regression model indicated that individuals with lower literacy levels were almost twice as likely as literate respondents to have low HIV-related knowledge (adjusted OR (AOR): 1.95, 95% CI 1.85 to 2.05, P<0.001), and individuals in the upper wealth quintile were less than half as likely than those in the lower wealth quintile to have low HIV-related knowledge (AOR: 0.40, 95% CI 0.35 to 0.46, P<0.001). Women were also more than twice as likely as men to have low HIV related knowledge at each level of wealth inequality. In addition, women were 80% less likely to have low mother-to-child transmission knowledge than men, but had over 1.5 times higher odds of having poor knowledge of HIV risk reduction measures. Ethnicity, religious affiliation, relationship status and residing in rural areas were additional significant predictors of HIV-related knowledge. Conclusion: HIV-related knowledge in this sample is generally low among women, those with low literacy levels, the poor, the unemployed, those residing in rural areas, those with traditional religious beliefs and those living in states with the highest wealth inequality ratios. The identification of these risk groups for low HIV-related knowledge facilitates the implementation of future evidence-based interventions among these groups in order to potentially reduce HIV transmission. PMID- 29333284 TI - Does greater individual social capital improve the management of hypertension? Cross-national analysis of 61 229 individuals in 21 countries. AB - Introduction: Social capital, characterised by trust, reciprocity and cooperation, is positively associated with a number of health outcomes. We test the hypothesis that among hypertensive individuals, those with greater social capital are more likely to have their hypertension detected, treated and controlled. Methods: Cross-sectional data from 21 countries in the Prospective Urban and Rural Epidemiology study were collected covering 61 229 hypertensive individuals aged 35-70 years, their households and the 656 communities in which they live. Outcomes include whether hypertensive participants have their condition detected, treated and/or controlled. Multivariate statistical models adjusting for community fixed effects were used to assess the associations of three social capital measures: (1) membership of any social organisation, (2) trust in other people and (3) trust in organisations, stratified into high-income and low-income country samples. Results: In low-income countries, membership of any social organisation was associated with a 3% greater likelihood of having one's hypertension detected and controlled, while greater trust in organisations significantly increased the likelihood of detection by 4%. These associations were not observed among participants in high-income countries. Conclusion: Although the observed associations are modest, some aspects of social capital are associated with better management of hypertension in low-income countries where health systems are often weak. Given that hypertension affects millions in these countries, even modest gains at all points along the treatment pathway could improve management for many, and translate into the prevention of thousands of cardiovascular events each year. PMID- 29333286 TI - Prevalence and determinants of tobacco use among young people in The Gambia. AB - Introduction: Tobacco consumption and consequent morbidity and mortality are expected to grow most markedly over coming decades in low-income and middle income countries (LMICs). Preventing tobacco experimentation and uptake among young people in LMICs is therefore vital. However, data on smoking in these countries, particularly in sub-Saharan Africa, remain sparse. Method: We used two stage cluster random sampling to select students in upper and senior secondary schools throughout The Gambia, and a self-administered questionnaire to collect data on their tobacco use, risk factors and demographic details. Results: Of 10 392 eligible students, 10 289 (99%; 55% girls and 44% boys, age 12-20 years) participated. The prevalence of ever smoking cigarettes, cigars or pipes was 16.7% (25.7% boys and 9.4% girls) and current (past 30 days) smoking 4.5% (7.9% boys and 1.5% girls). Smoking was more common among students attending private schools (OR 1.69, 95% CI 1.29 to 2.22), of Christian or other faiths compared with Muslims, living with parents (OR 1.39, 95% CI 1.06 to 1.81), who had smoking allowed in their homes (OR 1.67, 95% CI 1.30 to 2.13), with family members who smoked or had one or more friends who smoked. Most (55.6%) smokers want to stop, but only 22% received any stop smoking support. Ever smoking of shisha, at 8.1%, was unexpectedly high, and relatively prevalent among girls (11.4% of boys and 5.4% of girls). Conclusions: Tobacco use is common among young people in The Gambia. Shisha smoking is also common in this population, and in relative terms especially among girls. Further work is required to determine whether this is a problem local to The Gambia or reflects a wider pattern of tobacco use in sub Saharan Africa. PMID- 29333287 TI - Vertical and horizontal equity of funding for malaria control: a global multisource funding analysis for 2006-2010. AB - Background: International and domestic funding for malaria is critically important to achieve the Sustainable Development Goals. Its equitable distribution is key in ensuring that the available, scarce, resources are deployed efficiently for improved progress and a sustained response that enables eradication. Methods: We used concentration curves and concentration indices to assess inequalities in malaria funding by different donors across countries, measuring both horizontal and vertical equity. Horizontal equity assesses whether funding is distributed in proportion to health needs, whereas vertical equity examines whether unequal economic needs are addressed by appropriately unequal funding. We computed the Health Inequity Index and the Kakwani Index to assess the former and the latter, respectively. We used data from the World Bank, Global Fund, Unicef, President's Malaria Initiative and the Malaria Atlas Project to assess the distribution of funding against need for 94 countries. National gross domestic product per capita was used as a proxy for economic need and 'population at-risk' for health need. Findings: The level and direction of inequity varies across funding sources. Unicef and the President's Malaria Initiative were the most horizontally inequitable (pro-poor). Inequity as shown by the Health Inequity Index for Unicef decreased from -0.40 (P<0.05) in 2006 to -0.25 (P<0.10) in 2008, and increased again to -0.58 (P<0.01) in 2009. For President's Malaria Initiative, it increased from -0.19 (P>0.10) in 2006 to -0.38 (P<0.05) in 2008, and decreased to -0.36 (P<0.10) in 2010. Domestic funding was inequitable (pro rich) with inequity increasing from 0.28 (P<0.01) in 2006 to 0.39 (P<0.01) in 2009, and then decreasing to 0.22 (P<0.10) in 2010. Funding from the World Bank and the Global Fund was distributed proportionally according to need. In terms of vertical inequity, all sources were progressive: Unicef and the President's Malaria Initiative were the most progressive with the Kakwani Indices ranging from -0.97 (P<0.01) to -1.29 (P<0.01), and -0.90 (P<0.01) to -1.10 (P<0.01), respectively. Conclusion: Our results suggest that external funding of malaria treatment tends to be allocated to countries with higher health and economic need but not in proportion to their relative health need and income when compared to other countries. While malaria eradication might require funders to disproportionally allocate funding that goes beyond (financial and health) need, our analysis highlights that funders might potentially be targeting in excess certain countries. Regular assessments of need and greater coordination among donors are necessary for equitable resource allocation, to improve and sustain progress with malaria control and elimination. PMID- 29333289 TI - Localized Single-Cell Lysis and Manipulation Using Optothermally-Induced Bubbles. AB - Localized single cells can be lysed precisely and selectively using microbubbles optothermally generated by microsecond laser pulses. The shear stress from the microstreaming surrounding laser-induced microbubbles and direct contact with the surface of expanding bubbles cause the rupture of targeted cell membranes. High resolution single-cell lysis is demonstrated: cells adjacent to targeted cells are not lysed. It is also shown that only a portion of the cell membrane can be punctured using this method. Both suspension and adherent cell types can be lysed in this system, and cell manipulation can be integrated for cell-cell interaction studies. PMID- 29333288 TI - Variations in disability and quality of life with age and sex between eight lower income and middle-income countries: data from the INDEPTH WHO-SAGE collaboration. AB - Background: Disability and quality of life are key outcomes for older people. Little is known about how these measures vary with age and gender across lower income and middle-income countries; such information is necessary to tailor health and social care policy to promote healthy ageing and minimise disability. Methods: We analysed data from participants aged 50 years and over from health and demographic surveillance system sites of the International Network for the Demographic Evaluation of Populations and their Health Network in Ghana, Kenya, Tanzania, South Africa, Vietnam, India, Indonesia and Bangladesh, using an abbreviated version of the WHO Study on global AGEing survey instrument. We used the eight-item WHO Quality of Life (WHOQoL) tool to measure quality of life and theWHO Disability Assessment Schedule, version 2 (WHODAS-II) tool to measure disability. We collected selected health status measures via the survey instrument and collected demographic and socioeconomic data from linked surveillance site information. We performed regression analyses to quantify differences between countries in the relationship between age, gender and both quality of life and disability, and we used anchoring vignettes to account for differences in interpretation of disability severity. Results: We included 43 935 individuals in the analysis. Mean age was 63.7 years (SD 9.7) and 24 434 (55.6%) were women. In unadjusted analyses across all countries, WHOQoL scores worsened by 0.13 points (95% CI 0.12 to 0.14) per year increase in age and WHODAS scores worsened by 0.60 points (95% CI 0.57 to 0.64). WHODAS-II and WHOQoL scores varied markedly between countries, as did the gradient of scores with increasing age. In regression analyses, differences were not fully explained by age, socioeconomic status, marital status, education or health factors. Differences in disability scores between countries were not explained by differences in anchoring vignette responses. Conclusions: The relationship between age, sex and both disability and quality of life varies between countries. The findings may guide tailoring of interventions to individual country needs, although these associations require further study. PMID- 29333290 TI - Clinical Characteristics and Surgical Procedures for Children with Congenital Membranous Cataract. AB - Objective: In a group case series, the clinical characteristics of congenital membranous cataract in children were studied to establish a system of classification and determine the surgical method suited for each type. Methods: Children (18 eyes) with congenital membranous cataract were examined by slit lamp, ultrasound biomicroscopy, and operating microscopy to classify cataracts. The clinical characteristics of congenital membranous cataract and its feature related to the surgical method were analyzed. Results: Five major types of congenital membranous cataracts were classified. All of the surgeries were successful. Anterior and posterior capsulorhexis was performed using Kloti RF capsulotomy tips. The capsular flap was removed, and anterior vitrectomy was performed using a vitrectomy cutter. Postoperative complications included posterior capsule opacification in 16.7% of the patients. Conclusion: Ultrasound biomicroscopy was used successfully to classify congenital membranous cataracts prior to surgery. Anterior and posterior capsulorhexis was performed using Kloti RF capsulotomy tips, and capsulectomy was performed using a vitrectomy cutter. These were effective techniques and should be considered for congenital membranous cataract removal surgery. This trial is registered with registration number chiCTR-OOC-17010913. PMID- 29333291 TI - The Effect of Perioperative Topical Ketorolac 0.5% on Macular Thickness after Uneventful Phacoemulsification. AB - Background: To evaluate the effects of topical 0.5% ketorolac treatment combined with topical steroids on macular thickness in cases who had uneventful phacoemulsification surgery. Methods: 58 eyes of 58 consecutive cases were included. The mean foveal thickness (MFT), parafoveal thickness (ParaFT), and perifoveal thickness (PeriFT) measurements were performed with optical coherence tomography (RTVue-100, Optovue, Fremont, CA, USA) preoperatively and at postoperative 1 week, 1 month, and 2 months. All cases received topical 0.1% dexamethasone postoperatively. Randomly selected cases additionally received topical 0.5% ketorolac, which started 2 days prior to surgery. Cases who received both topical steroids and ketorolac formed group 1 and subjects who received only topical steroids formed group 2. Results: The increase in mean MFT at the 1st week, 1st month, and 2nd months after surgery in group 1 was significantly lower than group 2 (P = 0.008, P <= 0.001, and P <= 0.001, resp.). In group 1, the increase in mean ParaFT and PeriFT was significantly lower than group 2 at the 1st and 2nd months of the surgery (P < 0.05 for all variables). Conclusions: Topical ketorolac combined with steroids is highly efficacious in order to prevent increment in thickness on each part of the macula even after an uneventful phacoemulsification surgery comparing to steroid monotheraphy. PMID- 29333292 TI - Applying Sutureless Encircling Number 41 Band and Transscleral Chandelier Assisted Laser Retinopexy for Scleral Buckling Procedure. AB - Purpose: To assess the outcome of sutureless encirlcing number 41 band and transscleral laser retinopexy in uncomplicated rhegmatogenous retinal detachment (RRD), using a wide-angle viewing system (WAVS) and chandelier endoillumination. Methods: Prospective intervention study included 30 eyes of 30 patients presenting with RRD of recent onset indicated for SB. All cases were treated by sutureless encircling number 41 band and transscleral laser retinopexy. Visualization was provided by the Resight WAVS and a single 27-gauge chandelier endoillumination. Anatomical and visual outcomes were evaluated. Results: The mean age of our group was 49.8 +/- 12.3 years, and the mean duration of RD was 7 (0-50) days. Twenty-four eyes (80.0%) were phakic while the remaining 6 eyes (20%) were either pseudophakic or aphakic. The primary retinal reattachment rate was 83.3% (25 out of 30 eyes). LogMAR visual acuity improved from 1.3 (0.30-2.0) preoperatively to 1.0 (0.40-1.60) at first month (p = 0.002) and to 0.70 (0.20 1.92) at third month (p < 0.001). Conclusion: Sutureless encircling number 41 band with chandelier-assisted transscleral laser retinopexy is a safe and effective technique for managing uncomplicated RRD. It provides a high primary success rate while eliminating the complications of cryotherapy, sutures, and broad buckles. PMID- 29333293 TI - Corrigendum to "Genotype-Phenotype Characterization of Novel Variants in Six Italian Patients with Familial Exudative Vitreoretinopathy". AB - [This corrects the article DOI: 10.1155/2017/3080245.]. PMID- 29333294 TI - Addressing Adolescent Depression in Tanzania: Positive Primary Care Workforce Outcomes Using a Training Cascade Model. AB - Background: This is a report on the outcomes of a training program for community clinic healthcare providers in identification, diagnosis, and treatment of adolescent Depression in Tanzania using a training cascade model. Methods: Lead trainers adapted a Canadian certified adolescent Depression program for use in Tanzania to train clinic healthcare providers in the identification, diagnosis, and treatment of Depression in young people. As part of this training program, the knowledge, attitudes, and a number of other outcomes pertaining to healthcare providers and healthcare practice were assessed. Results: The program significantly, substantially, and sustainably improved provider knowledge and confidence. Further, healthcare providers' personal help-seeking efficacy also significantly increased as well as the clinicians' reported number of adolescent patients identified, diagnosed, and treated for Depression. Conclusion: To our knowledge, this is the first study reporting positive outcomes of a training program addressing adolescent Depression in Tanzanian community clinics. These results suggest that the application of this training cascade approach may be a feasible model for developing the capacity of healthcare providers to address youth Depression in a low-income, low-resource setting. PMID- 29333295 TI - Serial Galactose-Deficient IgA1 Levels in Children with IgA Nephropathy and Healthy Controls. AB - Galactose-deficient IgA1 (Gd-IgA1) is a key pathogenic factor for IgA nephropathy (IgAN) and a potential biomarker for the disease. This study examined serial serum Gd-IgA1 levels over 1 year in 13 children with IgAN and 40 healthy children, to determine whether or not serum Gd-IgA1 levels changed over time. Subjects were younger than 18 years of age. Follow-up measurements were scheduled 6 and/or 12 months later. Analysis of variance and regression models for repeated measures were used to estimate group and time effects. Serum Gd-IgA1 level was higher in initial samples for IgAN patients compared to those of healthy children (P < 0.0001). Serum Gd-IgA1 levels did not change over time for healthy controls but increased for IgAN patients (P = 0.001). Serum Gd-IgA1 level was elevated for 9 children with IgAN at study entry and remained elevated. Two of the 4 IgAN patients with initially normal Gd-IgA1 levels had a subsequent elevated level. The persistent elevation of the serum Gd-IgA1 level in children with IgAN enhances its utility as a potential diagnostic test for IgAN. PMID- 29333296 TI - Determinants of Malaria Prevention and Treatment Seeking Behaviours of Pregnant Undergraduates Resident in University Hostels, South-East Nigeria. AB - This cross-sectional descriptive survey investigated determinants of malaria prevention and treatment seeking behaviours of pregnant undergraduates resident in university hostels, South-East Nigeria. Purposive sampling was used to enrol 121 accessible and consenting undergraduates with self-revealed and noticeable pregnancy residing in twenty-three female hostels of four university campuses in Enugu State, Nigeria. Structured interview guide developed based on reviewed literature and WHO-recommended malaria prevention and treatment measures was used to collect students' self-report data on malaria preventive health behaviours, sick role behaviours, and clinic use using mixed methods. The WHO-recommended malaria prevention measures were sparingly used. Some believed that pregnancy does not play any role in a woman's reaction to malaria infection. Only 41 (50.6%) visited a hospital for screening and treatment. Thirty-four (28.1%) used antimalaria medicine bought from chemist shop or over-the-counter medicines, while 33 (27.3%) used untreated net. The students were more likely to complete their antimalaria medicine when they were sick with malaria infection than for prevention (p = 0.0186). Knowledge, academic schedule, cultural influence on perception and decision-making, and accessibility of health facility were key determinants of the women's preventive and treatment seeking behaviours. Health education on malaria prevention and dangers of drug abuse should form part of orientation lectures for all freshmen. University health centres should be upgraded to provide basic antenatal care services. PMID- 29333297 TI - Metronomic Chemotherapy in Triple-Negative Metastatic Breast Cancer: The Future Is Now? AB - Triple-negative breast cancer (TNBC) shows a very bad prognosis, even in early stages of disease. Metronomic chemotherapy refers to the minimum biologically effective dose of a chemotherapy agent given as a continuous dosing regimen with no prolonged drug-free breaks that leads to antitumor activity. In the present article, we review preclinical and clinical data of metronomic administration of chemotherapy agents with or without biological agents in TNBC cell lines and patients, contextually reporting data from the VICTOR-2 study in the subgroup of patients with TNBC, in order to stimulate new ideas for the design of clinical trials in this subset of patients. PMID- 29333298 TI - Inability to Utilize Retrograde Cardioplegia due to a Persistent Left Superior Vena Cava. AB - A persistent left superior vena cava is a congenital abnormality that affects a minority of the general population. While this finding is not hemodynamically significant in all patients, failure to recognize the altered anatomy in any of these patients can be consequential during procedures such as central venous catheter placement, pacemaker/defibrillator wire placement, and use of retrograde cardioplegia during cardiac surgery. We present a case of an intraoperative diagnosis of a persistent left superior vena cava that altered the original plan to arrest the heart using retrograde cardioplegia. Echocardiography was instrumental in this diagnosis and avoided potentially inadequate myocardial protection during cardiopulmonary bypass. PMID- 29333299 TI - Ventricular Fibrillation following Varicella Zoster Myocarditis. AB - Varicella-zoster virus (VZV) infection can rarely lead to serious cardiac complications and life-threatening arrhythmias. We present a case of a 46-year old male patient who developed VZV myocarditis and presented with recurrent syncopal episodes followed by a cardiac arrest. He had a further collapse eight years later, and cardiac magnetic resonance imaging (MRI) demonstrated mild mid wall basal and inferolateral wall fibrosis. He was treated with an implantable cardioverter defibrillator (ICD) and represented two years later with ICD shocks, and interrogation of the device revealed ventricular fibrillation episodes. This case demonstrates the life-threatening long-term sequelae of VZV myocarditis in adults. We suggest that VZV myocarditis should be considered in all patients who present with a syncopal event after VZV infection. In these patients, ICD implantation is a potentially life-saving procedure. PMID- 29333300 TI - Cyclic Nonrespiratory Pulse Pressure Oscillations Caused by Atrioventricular Dissociation. AB - Dynamic preload assessment tests, especially pulse pressure variation (PPV) and stroke volume variation (SVV), are increasingly acknowledged in mechanically ventilated patients as being predictors of fluid responsiveness. However, the limitations of this method are often neglected or overlooked. One of the prerequisites for PPV and SVV evaluation, in addition to intermittent positive pressure ventilation, is a "regular heart rhythm," which may be an ambiguous term. We present a case where, despite a regular (paced) rhythm, atrioventricular dissociation was present and resulted in marked PPV elevation, which subsequently disappeared once sinus rhythm returned. Our case indicates that PPV and SVV should be interpreted with caution when atrioventricular dissociation is present. PMID- 29333301 TI - A Case of Segmental Arterial Mediolysis Presenting as Mucosal Gastric Hematoma. AB - Background: Although segmental arterial mediolysis (SAM) has been increasingly recognized as arteriopathy and there are some case reports about SAM, it is still very rare. It is characterized clinically by aneurysm, dissection, stenosis, and occlusion within splanchnic arterial branches, causing intra-abdominal hemorrhage or bowel ischemia. Mortality is as high as 50% in acute events. Case Presentation: A 51-year-old man was referred to our hospital with hematemesis. Gastroscopy revealed a submucosal-like tumor on the posterior wall of gastric angle with ulceration. Computed tomography indicated a tumor measuring 65 * 50 mm in the stomach, which was suspected to have invaded into the pancreas. Significant hematemesis recurred; the patient developed shock and underwent emergency distal gastrectomy, distal pancreatectomy, and splenectomy. The pathology and the clinical course were compatible with SAM splenic artery rupture causing retroperitoneal hemorrhage that penetrated into the stomach. After that surgery, aneurysm of common hepatic artery ruptured and coil embolization was performed. Conclusion: SAM is an important cause of intra-abdominal or retroperitoneal hemorrhage in patients without underlying disease. SAM typically presents as intra-abdominal hemorrhage, but, in this case, the retroperitoneal hemorrhage penetrated into the stomach and it looked like a submucosal tumor. PMID- 29333302 TI - A Mysterious DRESS Case: Autoimmune Enteropathy Associated with DRESS Syndrome. AB - Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS) is a rare but potentially life-threatening cutaneous hypersensitivity reaction characterized by extensive mucocutaneous eruption, fever, hematologic abnormalities, and extensive organ involvement. Here, we present a case of a young woman with DRESS syndrome following exposure to vancomycin with renal, cutaneous, and gastrointestinal involvement. To the best of our knowledge, this is the first case description in the literature of DRESS of the gastrointestinal tract with autoimmune enteropathy. PMID- 29333303 TI - Schinzel-Giedion Syndrome with Congenital Megacalycosis in a Turkish Patient: Report of SETBP1 Mutation and Literature Review of the Clinical Features. AB - Schinzel-Giedion syndrome (SGS) is a rare autosomal dominant disorder that results in facial dysmorphism, multiple congenital anomalies, and an increased risk of malignancy. Recently, using exome sequencing, de novo heterozygous mutations in the SETBP1 gene have been identified in patients with SGS. Most affected individuals do not survive after childhood because of the severity of this disorder. Here, we report SETBP1 mutation confirmed by molecular analysis in a case of SGS with congenital megacalycosis. PMID- 29333304 TI - Synthetic Cannabinoid Abuse and a Rare Alpha-1-Antitrypsin Mutant Causing Acute Fulminant Hepatitis: A Case Report and Review of the Literature. AB - Synthetic cannabinoids (SCs) abuse is on the rise because they are easily obtained over the counter; they are potent psychoactive compounds and routine drug testing does not detect them. As their abuse is on the rise, so are their detrimental side effects; however, the occurrence of acute hepatitis due to SCs abuse has been reported only once before. In this case, testing revealed that the patient was also heterozygous for alpha-1-antitrypsin (A-1-AT) with the phenotype of PI*EM. This mutant phenotype has never been reported as a cause of A-1-AT disease and the abuse of SCs in a patient with this phenotype has also never been reported. This case illustrates the possible need to expand routine drug testing for SCs and consider A-1-AT phenotyping in certain clinical scenarios. PMID- 29333305 TI - A Rare Case of Transient Proximal Renal Tubular Acidosis in Pregnancy. AB - Renal tubular acidosis (RTA) is a disorder that has improper function of renal acid-base regulation and is rarely encountered during pregnancy. Currently, there is no clear evidence on management and outcomes in patients with this condition. We report a case of a previously healthy 23-year-old female at 30 weeks of gestation who presented with proximal RTA and had spontaneous resolution of the condition shortly after delivery. PMID- 29333306 TI - Acute Cervical Dystonia Induced by Clebopride. AB - Antidopaminergic drugs are known to induce extrapyramidal symptoms. Clebopride, a dopamine antagonist, also can produce parkinsonism, tardive dyskinesia, tardive dystonia, hemifacial dystonia, or oculogyric crisis; however, acute dystonic reaction caused by clebopride has not been reported in adults. We report two young men who experienced acute cervical dystonia within a few days of taking clebopride. The patients recovered after discontinuation of the drug. Physicians prescribing clebopride should be aware of the adverse effects of this drug. PMID- 29333307 TI - Recurrent Cesarean Scar Ectopic Pregnancy Treated with Systemic Methotrexate. AB - Cesarean scar pregnancy (CSP) is a rare event; however its incidence has been rising due to the increasing rates of cesarean deliveries. The majority of cases present with signs or symptoms requiring surgery, which often results in hysterectomy. The recurrence of CSP is even rarer with only few cases which have been reported. This is a report of recurrent cesarean scar ectopic pregnancy (RCSP) that was promptly diagnosed and managed with only systemic methotrexate. This was a 30-year-old woman, with a history of two prior cesarean deliveries followed by a CSP, who presented at 5 weeks and 3 days of gestation for her first prenatal visit. Transvaginal ultrasound revealed a RCSP. Her serum beta-human chorionic gonadotropin (beta-hCG) level was 54,295 IU/L. The first CSP, which was diagnosed at a later stage, was treated with uterine artery embolization and systemic methotrexate leading to complete resolution within 10 weeks. The current ectopic was treated with two doses of systemic methotrexate; her serum beta-hCG reached undetectable levels within 7 weeks. Thus, patients with a history of prior CSP should be carefully monitored with transvaginal ultrasound during subsequent pregnancies to allow early diagnosis of RCSP, which could then be treated conservatively. PMID- 29333308 TI - Recurrent Gastrointestinal Stromal Tumors in the Imatinib Mesylate Era: Treatment Strategies for an Incurable Disease. AB - Introduction: Recurrence of gastrointestinal stromal tumors (GISTs) after surgical resection and imatinib mesylate (IM) adjuvant therapy poses a significant treatment challenge. We present the case of a patient who underwent surgical resection after recurrence and review the current literature regarding treatment. Case Presentation: A 58-year-old man with a large intra-abdominal jejunal GIST was treated with complete surgical resection followed by IM. The patient experienced disease recurrence 3.5 years later and underwent IM dose escalation and reresection. Conclusion: Current strategies to treat recurrent GIST include dose escalation, modifying adjuvant tyrosine kinase inhibitor therapy, and surgery. High-level evidence will be required to better define the combinatory roles of tyrosine kinase inhibitor therapy, guided by molecular profiling, and surgery in the management of recurrent GIST. PMID- 29333309 TI - Intraperitoneal Granulomas Unexpectedly Found during a Cesarean Delivery: A Late Complication of Dropped Gallstones. AB - Laparoscopic cholecystectomy is the treatment of choice for patients with symptomatic cholelithiasis. Spillage of gallstones into the abdominal cavity during laparoscopic cholecystectomy occurs in approximately one-third of cases. Although retained gallstones remain asymptomatic, few cases may develop complications. We report the case of a 29-year-old nulliparous woman presenting with several hard nodules in the omentum, raising the possibility of a metastatic disease. Histological examination demonstrated a bile-stained material and a foreign body-type granulomatous response without neoplastic tissue. Our case demonstrates an example of a complication resulting two years after a laparoscopic cholecystectomy that was unexpectedly found during a cesarean delivery. Pathologists should be aware of this entity to avoid interpretation errors. PMID- 29333310 TI - Hemiataxia: A Novel Presentation of Anti-NMDA Receptor Antibody Mediated Encephalitis in an Adolescent. AB - Anti-NMDA receptor antibody associated encephalitis as a cause of new-onset neuropsychiatric manifestations in children and adults can represent a significant diagnostic challenge for clinicians. Clinical signs often include encephalopathy, new-onset psychosis, and movement phenomenon. Although orofacial dyskinesias were initially identified as a characteristic movement phenomenon in this type of encephalitis, an expanded range of abnormalities has recently been reported, including isolated ataxia. We report a case of isolated hemiataxia in a young adult with mild initial psychiatric manifestations. A personal and family history of preceding neuropsychiatric symptoms produced diagnostic confusion and resulted in a significant diagnostic and therapeutic delay. Our case confirms the unilateral movement manifestations that have been emphasized in recent reports. Additionally, it confirms the need for involvement of neurologic as well as psychiatric services in the evaluation of such cases and emphasizes the importance of the neurologic examination in presentations with an initial psychiatric predominance. PMID- 29333312 TI - Mesh Migration into the J-Pouch in a Patient with Post-Ulcerative Colitis Colectomy: A Case Report and Literature Review. AB - Mesh repair offers advantages like lower postsurgical pain and earlier return to work. Thus, it has become a widely used treatment option. Here, we present the first case report of a mesh migration into a J-pouch in a patient with history of ulcerative colitis who underwent total abdominal colectomy with J-pouch and ileoanal anastomosis and a subsequent laparoscopic ventral hernia repair with mesh. PMID- 29333311 TI - An Uncommon Case of Bilateral Breast Enlargement Diagnosed as Tumoral Pseudoangiomatous Stromal Hyperplasia: Imaging and Pathological Findings. AB - The incidence of reported pseudoangiomatous stromal hyperplasia (PASH), as well as the variability and severity of clinical presentations, is increasing in the literature. In parallel, several authors posit the need for an improved classification of PASH to avoid possible variables associated with this diagnosis. Here, we present a 25-year-old woman with PASH accompanied by severe bilateral and symmetrical breasts enlargement, highlighting an uncommon clinical presentation of PASH as much as the careful interdisciplinary review and correlation of histology and all available imaging studies to confirm the definitive diagnosis. PMID- 29333313 TI - Retroperitoneal Necrotizing Fasciitis from Fournier's Gangrene in an Immunocompromised Patient. AB - Introduction: Necrotizing fasciitis (NF) is a devastating soft tissue disease causing fulminant clinical deterioration, and extension into the retroperitoneum has a high mortality rate. This disease process demands a strong clinical suspicion for early identification which must be coupled with frequent wide surgical debridements and intravenous antibiotics for improved outcomes. Various clinical risk factors may render a weakness in the patient's immune status including diabetes mellitus, chronic renal failure, obesity, and autoimmune disorders, such as a human immunodeficiency virus (HIV) infection. Case Report: A 55-year-old male presented with hypotension requiring a large intravenous fluid resuscitation and vasopressors. He was diagnosed with the human immunodeficiency virus upon presentation. A computerized tomographic scan revealed air and fluid in the perineum and pelvis, ascending into the retroperitoneum. Multiple surgical debridements to his perineum, deep pelvic structures, and retroperitoneum were completed. After colostomy placement, antibiotic administration, and wound care, he was closed using split-thickness skin grafting. Conclusion: NF is a sinister and fulminant disease requiring prompt diagnosis and surgical intervention. The best chance for survival occurs with emergent surgical debridement and appropriate intravenous antibiotics. While retroperitoneal NF is consistent with uniformly poor outcomes, patients are best treated in an American Burn Association-verified burn center. PMID- 29333314 TI - A Case of Small Bowel Obstruction and Enterocutaneous Fistulation Resulting from a Mesenteric Haematoma following Blunt Abdominal Trauma. AB - A 23-year-old male with a history of previous abdominal surgery was involved in a road traffic accident. He was discharged after initial assessment but represented several days with small bowel obstruction secondary to a mesenteric haematoma. He underwent resection and recovered well but represented later on the day of discharge with a leaking surgical wound consistent with an enterocutaneous fistula. This was managed conservatively and closed spontaneously after ten days. This case serves to highlight that adhesions from previous surgery can tether the small bowel causing mesenteric injury following blunt-force trauma. It also demonstrates that postoperative ileus can result in an enterocutaneous fistula that has the appearance of an anastomotic breakdown but which resolves more rapidly. PMID- 29333315 TI - Early Contextual Fear Memory Deficits in a Double-Transgenic Amyloid-beta Precursor Protein/Presenilin 2 Mouse Model of Alzheimer's Disease. AB - Presenilin 1 and presenilin 2 (PS1 and PS2) play a critical role in gamma secretase-mediated cleavage of amyloid-beta precursor protein (APP) and the subsequent generation of beta-amyloid peptides. The purpose of the present study was to test whether PS2 mutation accelerates the onset of contextual fear memory deficits in a mouse model of AD that expresses a mutation (K670N/M671L) of the human APP with the Swedish mutation (Tg2576 mice). In the present study, an APP/PS2 double-transgenic mouse model (PS2Tg2576) was generated by crossbreeding transgenic mice carrying the human mutant PS2 (N141I) with Tg2576 mice. Contextual fear conditioning was tested in PS2Tg2576 mice aged 3, 4, 6, and 10-12 months. PS2Tg2576 mice showed a tendency of lower freezing behavior as early as 3 months of age, but significant memory impairment was observed from the age of 4 months. The cognitive impairment was more prominent at ages of 6 and 10-12 months. In contrast, Tg2576 mice aged 3 and 4 months exhibited successful acquisition of contextual fear learning, but Tg2576 mice aged 6 months or older showed significantly impaired fear memory. These results show that PS2 mutation significantly accelerates the onset of fear memory deficits in the APP AD model mice. PMID- 29333316 TI - Impact of Mezieres Rehabilitative Method in Patients with Parkinson's Disease: A Randomized Controlled Trial. AB - The aim of this study was to assess the efficacy of Mezieres method in improving trunk flexibility of the back muscles and balance in patients with Parkinson's disease (PD). Materials and Methods. Thirty-six patients were randomized into 2 groups: the Mezieres treatment group and the control group (home exercise group). The primary outcome was the improvement in balance per the Berg Balance Scale (BBS) and the trunk flexibility of the back for the anterior flexion trunk test. Also, we evaluated pain, gait balance for the Functional Gait Assessment (FGA), disease-related disability for the Modified Parkinson's Activity Scale and the Unified Parkinson's Disease Rating Scale (UPDRS), the quality of life, and the functional exercise capacity. All the measures were evaluated at baseline (T0), at the end of the rehabilitative program (T1), and at the 12-week follow-up (T2). Results. In the Mezieres group, the BBS (p < .001) and trunk flexion test (p < .001) improved significantly at T1 and remained the same at T2. Between groups, significant changes were reported in FGA (p = .027) and UPDRS Total (p = .007) at T1 and in FGA (p = .03) at T2. Conclusion. The Mezieres approach is efficacious in improving the flexibility of the trunk and balance in PD patients. PMID- 29333318 TI - Evaluation of Global Genomic DNA Methylation in Human Whole Blood by Capillary Electrophoresis UV Detection. AB - Alterations in global DNA methylation are implicated in various pathophysiological processes. The development of simple and quick, yet robust, methods to assess DNA methylation is required to facilitate its measurement and interpretation in clinical practice. We describe a highly sensitive and reproducible capillary electrophoresis method with UV detection for the separation and detection of cytosine and methylcytosine, after formic acid hydrolysis of DNA extracted from human whole blood. Hydrolysed samples were dried and resuspended with water and directly injected into the capillary without sample derivatization procedures. The use of a run buffer containing 50 mmol/L BIS-TRIS propane (BTP) phosphate buffer at pH 3.25 and 60 mmol/L sodium acetate buffer at pH 3.60 (4 : 1, v/v) allowed full analyte identification within 11 min. Precision tests indicated an elevated reproducibility with an interassay CV of 1.98% when starting from 2 MUg of the extracted DNA. The method was successfully tested by measuring the DNA methylation degree both in healthy volunteers and in reference calf thymus DNA. PMID- 29333319 TI - Comparative Liquid Chromatographic Study for Concurrent Determination of Canagliflozin and Metformin in Combined Tablets. AB - New HPLC-UV method (method A), for simultaneous determination of metformin (MET) and canagliflozin (CANA), was developed and compared to another novel UPLC-UV method (method B) in their tablet combination. Concerning method A, isocratic separation was done by C18 column (100 mm * 2.1 mm, 3 MUm) using methanol and 0.03 M phosphate buffer (75 : 25, v/v) at pH 3.2 as a mobile phase. Meanwhile, chromatographic separation in method B was achieved via Hypersil(r) gold (50 mm * 2.1 mm, 1.9 MUm). Mobile phase was methanol and 0.03 M phosphate buffer at ratio of 80 : 20 v/v. In both, detection was done at wavelength of 240 nm. Method A showed satisfactory linearity results over 1-50 MUg.mL-1 and 0.5-100 MUg.mL-1, while method B linearity was at 0.1-50 MUg.mL-1 and 0.25-100 MUg.mL-1 for CANA and MET, respectively. In terms of accuracy and precision, method A accuracy was 99.81 +/- 0.73 and 99.37 +/- 0.54, while method B gave accuracy of 99.47 +/- 1.03 and 99.73 +/- 0.89 for CANA and MET, respectively. For precision, the % RSD was found to be less than 2% for three concentrations analyzed three times. The two methods are convenient for quality laboratories, yet the UPLC method offered the advantage of shorter run times and higher sensitivity. PMID- 29333317 TI - Phosphorylated alpha-Synuclein-Copper Complex Formation in the Pathogenesis of Parkinson's Disease. AB - Parkinson's disease is the second most important neurodegenerative disorder worldwide. It is characterized by the presence of Lewy bodies, which are mainly composed of alpha-synuclein and ubiquitin-bound proteins. Both the ubiquitin proteasome system (UPS) and autophagy-lysosomal pathway (ALS) are altered in Parkinson's disease, leading to aggregation of proteins, particularly alpha synuclein. Interestingly, it has been observed that copper promotes the protein aggregation process. Additionally, phosphorylation of alpha-synuclein along with copper also affects the protein aggregation process. The interrelation among alpha-synuclein phosphorylation and its capability to interact with copper, with the subsequent disruption of the protein degradation systems in the neurodegenerative process of Parkinson's disease, will be analyzed in detail in this review. PMID- 29333320 TI - Our recap for happy new year. PMID- 29333321 TI - Periodontal wound healing following reciprocal autologous root transplantation in class III furcation defects. AB - Purpose: Furcation involvement in the molars is difficult to treat, and has been recognized as a risk factor for tooth loss. Although periodontal regenerative therapies, including guided tissue regeneration and various types of bone grafts, have been applied to furcation defects, the effects of these treatments are limited, especially in large class III furcation defects. The purpose of this pilot study was to investigate the effect of reciprocal autologous root transplantation on periodontal wound healing and regeneration in class III furcation defects in dogs. Methods: Furcation defects (7 mm wide and 6 mm high) were surgically created after root separation of the unilateral third and fourth premolars in 4 dogs. Eight furcation defects were randomized to receive either reciprocal autologous root transplantation (test) or no further treatment (control). In the test group, the mesial and distal roots were transplanted into the distal and mesial extraction sockets, respectively. The animals were sacrificed 10 weeks after surgery for histologic evaluation. Results: The healing pattern in the control group was characterized by extensive collapse of the flap and limited periodontal regeneration. New bone formation in the test group (3.56+/-0.57 mm) was significantly greater than in the control group (0.62+/-0.21 mm). Dense collagen fibers inserting into the residual cementum on the transplanted root surfaces were observed in the test group. Slight ankylosis was observed in 2 of the 4 specimens in the test group on the mesiodistal sides where the root-planed surfaces faced the existing bone. Root resorption (RR) was detected in both the control and test groups. Conclusions: Within the limits of this study, it can be concluded that reciprocal autologous root transplantation was effective for bone regeneration in class III furcation defects in dogs. However, further studies are required to standardize the approach in order to prevent unwanted RR prior to clinical application. PMID- 29333322 TI - A randomized controlled clinical study of periodontal tissue regeneration using an extracellular matrix-based resorbable membrane in combination with a collagenated bovine bone graft in intrabony defects. AB - Purpose: The purpose of this study was to investigate the feasibility of regenerative therapy with a collagenated bone graft and resorbable membrane in intrabony defects, and to evaluate the effects of the novel extracellular matrix (ECM)-based membrane clinically and radiologically. Methods: Periodontal tissue regeneration procedure was performed using an ECM-based resorbable membrane in combination with a collagenated bovine bone graft in intrabony defects around the teeth and implants. A novel extracellular matrix membrane (NEM) and a widely-used membrane (WEM) were randomly applied to the test group and the control group, respectively. Cone-beam computed tomography images were obtained on the day of surgery and 6 months after the procedure. Alginate impressions were taken and plaster models were made 1 week and 6 months postoperatively. Results: The quantity of bone tissue, the dimensional changes of the surgically treated intrabony defects, and the changes in width and height below the grafted bone substitutes showed no significant difference between the test and control groups at the 6-month examination. Conclusions: The use of NEM for periodontal regeneration with a collagenated bovine bone graft showed similar clinical and radiologic results to those obtained using WEM. PMID- 29333323 TI - Alveolar ridge preservation with an open-healing approach using single-layer or double-layer coverage with collagen membranes. AB - Purpose: The aim of this prospective pilot study was to compare alveolar ridge preservation (ARP) procedures with open-healing approach using a single-layer and a double-layer coverage with collagen membranes using radiographic and clinical analyses. Methods: Eleven molars from 9 healthy patients requiring extraction of the maxillary or mandibular posterior teeth were included and allocated into 2 groups. After tooth extraction, deproteinized bovine bone mineral mixed with 10% collagen was grafted into the socket and covered either with a double-layer of resorbable non-cross-linked collagen membranes (DL group, n=6) or with a single layer (SL group, n=5). Primary closure was not obtained. Cone-beam computed tomography images were taken immediately after the ARP procedure and after a healing period of 4 months before implant placement. Radiographic measurements were made of the width and height changes of the alveolar ridge. Results: All sites healed without any complications, and dental implants were placed at all operated sites with acceptable initial stability. The measurements showed that the reductions in width at the level 1 mm apical from the alveolar crest (including the bone graft) were -1.7+/-0.5 mm in the SL group and -1.8+/-0.4 mm in the DL group, and the horizontal changes in the other areas were also similar in the DL and SL groups. The reductions in height were also comparable between groups. Conclusions: Within the limitations of this study, single-layer and double-layer coverage with collagen membranes after ARP failed to show substantial differences in the preservation of horizontal or vertical dimensions or in clinical healing. Thus, both approaches seem to be suitable for open healing ridge preservation procedures. PMID- 29333324 TI - Ridge preservation using basic fibroblast growth factor-2 and collagenated biphasic calcium phosphate in beagle dogs. AB - Purpose: The aim of this study was to evaluate volumetric and histologic changes in edentulous alveolar ridge areas after ridge preservation using basic fibroblast growth factor-2 (bFGF-2) in combination with collagenated biphasic calcium phosphate (BCP). Methods: The experiments were performed in 6 adult male beagle dogs. The following 3 groups were created: 1) ridge preservation with bFGF 2 and collagenated BCP (experimental group), 2) ridge preservation with collagenated BCP (positive control group), and 3) a negative control group in which no ridge preservation procedure was performed. Volumetric change analysis was performed using an optical scanner and casts. Histological observations were made using light microscopy. Results: After the initial swelling subsided, the magnitude of the volumetric change in the experimental group and positive control group was smaller than in the negative control group. In the experimental group, a distinct trend was observed for the resorption of residual bone and collagen fibers at 4 weeks and for more mature bone and faster healing at 12 weeks. Conclusions: Based on the findings of the present study, bFGF-2 may be considered for use as a therapeutic molecule in ridge preservation procedures. PMID- 29333325 TI - Physicochemical characterization of porcine bone-derived grafting material and comparison with bovine xenografts for dental applications. AB - Purpose: The physicochemical properties of a xenograft are very important because they strongly influence the bone regeneration capabilities of the graft material. Even though porcine xenografts have many advantages, only a few porcine xenografts are commercially available, and most of their physicochemical characteristics have yet to be reported. Thus, in this work we aimed to investigate the physicochemical characteristics of a porcine bone grafting material and compare them with those of 2 commercially available bovine xenografts to assess the potential of xenogenic porcine bone graft materials for dental applications. Methods: We used various characterization techniques, such as scanning electron microscopy, the Brunauer-Emmett-Teller adsorption method, atomic force microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, and others, to compare the physicochemical properties of xenografts of different origins. Results: The porcine bone grafting material had relatively high porosity (78.4%) and a large average specific surface area (SSA; 69.9 m2/g), with high surface roughness (10-point average roughness, 4.47 um) and sub-100-nm hydroxyapatite crystals on the surface. Moreover, this material presented a significant fraction of sub-100-nm pores, with negligible amounts of residual organic substances. Apart from some minor differences, the overall characteristics of the porcine bone grafting material were very similar to those of one of the bovine bone grafting material. However, many of these morphostructural properties were significantly different from the other bovine bone grafting material, which exhibited relatively smooth surface morphology with a porosity of 62.0% and an average SSA of 0.5 m2/g. Conclusions: Considering that both bovine bone grafting materials have been successfully used in oral surgery applications in the last few decades, this work shows that the porcine-derived grafting material possesses most of the key physiochemical characteristics required for its application as a highly efficient xenograft material for bone replacement. PMID- 29333328 TI - Learning Tree-Structured Detection Cascades for Heterogeneous Networks of Embedded Devices. AB - In this paper, we present a new approach to learning cascaded classifiers for use in computing environments that involve networks of heterogeneous and resource constrained, low-power embedded compute and sensing nodes. We present a generalization of the classical linear detection cascade to the case of tree structured cascades where different branches of the tree execute on different physical compute nodes in the network. Different nodes have access to different features, as well as access to potentially different computation and energy resources. We concentrate on the problem of jointly learning the parameters for all of the classifiers in the cascade given a fixed cascade architecture and a known set of costs required to carry out the computation at each node. To accomplish the objective of joint learning of all detectors, we propose a novel approach to combining classifier outputs during training that better matches the hard cascade setting in which the learned system will be deployed. This work is motivated by research in the area of mobile health where energy efficient real time detectors integrating information from multiple wireless on-body sensors and a smart phone are needed for real-time monitoring and the delivery of just-in time adaptive interventions. We evaluate our framework on mobile sensor-based human activity recognition and mobile health detector learning problems. PMID- 29333326 TI - Evaluation of the periodontal regenerative properties of patterned human periodontal ligament stem cell sheets. AB - Purpose: The aim of this study was to determine the effects of patterned human periodontal ligament stem cell (hPDLSC) sheets fabricated using a thermoresponsive substratum. Methods: In this study, we fabricated patterned hPDLSC sheets using nanotopographical cues to modulate the alignment of the cell sheet. Results: The hPDLSCs showed rapid monolayer formation on various surface pattern widths. Compared to cell sheets grown on flat surfaces, there were no significant differences in cell attachment and growth on the nanopatterned substratum. However, the patterned hPDLSC sheets showed higher periodontal ligamentogenesis-related gene expression in early stages than the unpatterned cell sheets. Conclusions: This experiment confirmed that patterned cell sheets provide flexibility in designing hPDLSC sheets, and that these stem cell sheets may be candidates for application in periodontal regenerative therapy. PMID- 29333327 TI - Subcellular western blotting of single cells. AB - Although immunoassays are the de facto standard for determining subcellular protein localization in individual cells, antibody probe cross-reactivity and fixation artifacts remain confounding factors. To enhance selectivity while providing single-cell resolution, we introduce a subcellular western blotting technique capable of separately assaying proteins in the 14 pL cytoplasm and 2 pL nucleus of individual cells. To confer precision fluidic control, we describe a passive multilayer microdevice that leverages the rapid transport times afforded by miniaturization. After isolating single cells in microwells, we apply single cell differential detergent fractionation to lyse and western blot the cytoplasmic lysate, whereas the nucleus remains intact in the microwell. Subsequently, we lyse the intact nucleus and western blot the nuclear lysate. To index each protein analysis to the originating subcellular compartment, we utilize bi-directional electrophoresis, a multidimensional separation that assays the lysate from each compartment in a distinct region of the separation axis. Single-cell bi-directional electrophoresis eliminates the need for semi subjective image segmentation algorithms required in immunocytochemistry. The subcellular, single-cell western blot is demonstrated for six targets per cell, and successfully localizes spliceosome-associated proteins solubilized from large protein and RNA complexes, even for closely sized proteins (a 7 kDa difference). Measurement of NF-kappaB translocation dynamics in unfixed cells at 15-min intervals demonstrates reduced technical variance compared with immunofluorescence. This chemical cytometry assay directly measures the nucleocytoplasmic protein distribution in individual unfixed cells, thus providing insight into protein signaling in heterogeneous cell populations. PMID- 29333329 TI - Stable Pd-Doped Ceria Structures for CH4 Activation and CO Oxidation. AB - Doping CeO2 with Pd atoms has been associated with catalytic CO oxidation, but current surface models do not allow CO adsorption. Here, we report a new structure of Pd-doped CeO2(111), in which Pd adopts a square planar configuration instead of the previously assumed octahedral configuration. Oxygen removal from this doped structure is favorable. The resulting defective Pd-doped CeO2 surface is active for CO oxidation and is also able to cleave the first C-H bond in methane. We show how the moderate CO adsorption energy and dynamic features of the Pd atom upon CO adsorption and CO oxidation contribute to a low-barrier catalytic cycle for CO oxidation. These structures, which are also observed for Ni and Pt, can lead to a more open coordination environment around the doped transition-metal center. These thermally stable structures are relevant to the development of single-atom catalysts. PMID- 29333330 TI - Amorphous Cobalt Vanadium Oxide as a Highly Active Electrocatalyst for Oxygen Evolution. AB - The water-splitting reaction provides a promising mechanism to store renewable energies in the form of hydrogen fuel. The oxidation half-reaction, the oxygen evolution reaction (OER), is a complex four-electron process that constitutes an efficiency bottleneck in water splitting. Here we report a highly active OER catalyst, cobalt vanadium oxide. The catalyst is designed on the basis of a volcano plot of metal-OH bond strength and activity. The catalyst can be synthesized by a facile hydrothermal route. The most active pure-phase material (a-CoVO x ) is X-ray amorphous and provides a 10 mA cm-2 current density at an overpotential of 347 mV in 1 M KOH electrolyte when immobilized on a flat substrate. The synthetic method can also be applied to coat a high-surface-area substrate such as nickel foam. On this three-dimensional substrate, the a-CoVO x catalyst is highly active, reaching 10 mA cm-2 at 254 mV overpotential, with a Tafel slope of only 35 mV dec-1. This work demonstrates a-CoVO x as a promising electrocatalyst for oxygen evolution and validates M-OH bond strength as a practical descriptor in OER catalysis. PMID- 29333331 TI - Single-impulse Panoramic Photoacoustic Computed Tomography of Small-animal Whole body Dynamics at High Spatiotemporal Resolution. AB - Imaging of small animals has played an indispensable role in preclinical research by providing high dimensional physiological, pathological, and phenotypic insights with clinical relevance. Yet pure optical imaging suffers from either shallow penetration (up to ~1-2 mm) or a poor depth-to-resolution ratio (~1/3), and non-optical techniques for whole-body imaging of small animals lack either spatiotemporal resolution or functional contrast. Here, we demonstrate that standalone single-impulse photoacoustic computed tomography (SIP-PACT) mitigates these limitations by combining high spatiotemporal resolution (125-um in-plane resolution, 50 us / frame data acquisition and 50-Hz frame rate), deep penetration (48-mm cross-sectional width in vivo), anatomical, dynamical and functional contrasts, and full-view fidelity. By using SIP-PACT, we imaged in vivo whole-body dynamics of small animals in real time and obtained clear sub organ anatomical and functional details. We tracked unlabeled circulating melanoma cells and imaged the vasculature and functional connectivity of whole rat brains. SIP-PACT holds great potential for both pre-clinical imaging and clinical translation. PMID- 29333333 TI - 'Her body [was] like a hard-worked machine': Women's work and disability in coalfields literature, 1880-1950. AB - This essay considers the representation of women's work and disability in British coalfields literature in the period 1880-1950. Industrial settings are a rich source for literature concerned with bodily health, injury and disability and offer insights into the gendering of the working body whether male or female. Situating this largely realist body of novels, stories and plays in its historical context, this article will focus on intersections between work, class and gender. It shows how the vital, but unpaid, work of women in domestic labour was depicted as an extension of the industrial machine, which had clear consequences in terms of high mortality and morbidity rates amongst women. PMID- 29333334 TI - The Effect of the 2012 ASCCP Consensus Guideline for Abnormal Cervical Cytology on Resident Colposcopy Training. AB - The primary objective was to determine the theoretical number of colposcopies at a resident clinic if the 2012 American Society for Colposcopy and Cervical Pathology (ASCCP) guidelines were applied. The secondary objective was to determine the actual number of colposcopies before and after the ASCCP guidelines. This was a two-part descriptive study. The first part applied the 2012 ASCCP guidelines to all pre-guideline colposcopy cases at a single resident clinic. These theoretical results were then compared to the actual number of colposcopies. The second part compared the actual number of colposcopies during the one-year time period before and after the guidelines. Chi-Square tests and Fisher's Exact tests were used to examine the association of categorical variables. Seventy-three colposcopies were performed during the pre-guideline period. After applying the 2012 ASCCP guidelines, 52.1% would not have been indicated, resulting in 35 colposcopies. The largest reductions would have occurred in patients with low grade cytologic abnormalities. Applying the new guidelines, patients 24 years and younger would have been less likely than patients ages 25 to 64 to require colposcopy (P<.001). Fifty-eight indicated colposcopies were actually performed during the post-guideline period. While there was a decrease in the number of colposcopies performed post-guidelines, the decrease was not as dramatic as expected. From a training standpoint, as indications for colposcopy decrease, fewer training opportunities are available for residents. In particular, residents will have less experience evaluating low grade cytologic abnormalities in younger women. PMID- 29333335 TI - Recommendations for Contraception: Examining the Role of Patients' Age and Race. AB - The literature suggests that women of different races are more or less likely to use certain contraceptive methods and patient race can influence which contraceptive recommendations a provider makes. To explore whether health care providers treat individuals of different races differently, we conducted a preliminary investigation on whether medical students recommended different contraceptive methods for hypothetical patients presenting with the same clinical features who only varied by race. Third- and fourth-year medical students (n=103) at the University of Hawai'i completed an online survey. Students read case studies about a 23-year-old and 36-year-old patient and then made contraceptive recommendations. All students reviewed the same scenarios, with the exception of the patient's name which was randomly assigned to represent one of five racial/ethnic groups (White, Chinese, Filipina, Native Hawaiian, and Micronesian). Recommendations were analyzed using chi2 tests and bivariate logistic regressions. For the younger patient, students were most likely to recommend intrauterine devices (IUDs), followed by the contraceptive pill and Etonogestrel implant; recommendations did not differ by race/ethnicity (P = .91). For the older patient, students were most likely to recommend IUDs or sterilization, and Micronesian women were more likely to receive sterilization recommendations compared to White women (60% versus 27%, P = .04). In summary, contraceptive recommendations, specifically the frequency of recommending sterilization varied by race. Our findings add to the literature exploring the role of a patient's race/ethnicity on recommendations for contraception and highlights the need for more studies exploring the etiology of health care disparities. PMID- 29333336 TI - Medical School Hotline: School of Medicine Departments - Year in Review 2017, Part 1. PMID- 29333332 TI - Next Generation Tissue Engineering of Orthopedic Soft Tissue-to-Bone Interfaces. AB - Soft tissue-to-bone interfaces are complex structures that consist of gradients of extracellular matrix materials, cell phenotypes, and biochemical signals. These interfaces, called entheses for ligaments, tendons, and the meniscus, are crucial to joint function, transferring mechanical loads and stabilizing orthopedic joints. When injuries occur to connected soft tissue, the enthesis must be re-established to restore function, but due to structural complexity, repair has proven challenging. Tissue engineering offers a promising solution for regenerating these tissues. This prospective review discusses methodologies for tissue engineering the enthesis, outlined in three key design inputs: materials processing methods, cellular contributions, and biochemical factors. PMID- 29333337 TI - Insights in Public Health: Stepping Up Vector Control's Program Capacity To Prevent Arboviral Disease Transmission in Hawai'i. PMID- 29333339 TI - Time multiplexed deep reactive ion etching of germanium and silicon-A comparison of mechanisms and application to x-ray optics. AB - Although the mechanisms of deep reactive ion etching (DRIE) of silicon have been reported extensively, very little by comparison has been discussed concerning DRIE of germanium. By directly comparing silicon and germanium etching in a time multiplexed DRIE process, the authors extract significant differences in etch mechanisms from a design of experiment and discuss how these differences are relevant to the design and fabrication of silicon and germanium collimating channel array x-ray optics. The differences are illuminated by characteristics such as reactive ion etching (RIE)-lag, aspect ratio dependent etching, and sidewall passivation. Specifically, the authors demonstrate the more severe nature of RIE-lag in germanium, especially at aspect ratios exceeding 13:1. In addition, the differences in the profile evolution between silicon and germanium are shown to be a result of differences in sidewall passivation. There is also a correlation between the different sidewall passivation and the inherent lack of scalloping in the case of germanium DRIE. PMID- 29333340 TI - Examining differences in HPV awareness and knowledge and HPV vaccine awareness and acceptability between U.S. Hispanic and island Puerto Rican women. AB - Background: In 2015, only 42% of Puerto Rican (PR) girls aged 13-17 and 44% of U.S. Hispanic girls aged 13-17 were vaccinated with all three Human Papillomavirus (HPV) vaccine doses; These percentages were far lower than the Healthy People 2020 goal of 80% of girls aged 13-15 the Healthy People 2020 goal of 80%. The purpose of this study was to examine potential differences in HPV awareness and knowledge and HPV vaccine awareness and acceptability between a population-based sample of U.S. Hispanic and island Puerto Rican women. Methods: We restricted our analyses to female respondents from the Health Information National Trends Survey (HINTS) 2007 (n=375; U.S. Hispanic) and HINTS Puerto Rico 2009 (n=417; PR). Using the Wald chi-square test, we assessed if there were significant differences in HPV awareness and knowledge and HPV vaccine awareness and acceptability between U.S. Hispanic and island PR women. We then utilized logistic or multinomial regression to control for covariates on significant outcomes. Results: Both groups of Hispanic women were highly knowledgeable that HPV causes cancer (89.2% in both samples) and that HPV is a sexually transmitted infection (78.1% [U.S. Hispanics] and 84.7% [PR]). Less than 10% of both groups recognized that HPV can clear on its own without treatment. Island PR women had significantly higher HPV vaccine awareness (66.9% vs. 61.0%; Wald X2 F(1, 97) = 16.03, p < .001) and were more accepting of the HPV vaccine for a real or hypothetical daughter, compared to U.S. Hispanic women (74.8% vs. 56.1%; Wald X2 F(2, 96) = 7.18, p < .001). However, after controlling for sociodemographic variables and survey group, there was no longer a difference between the two groups of women and HPV vaccine awareness (AOR = .53; 95% CI = .23, 1.24). Moreover, after controlled analysis, island PR women were significantly less likely to have their hypothetical daughter get the HPV vaccine, compared to U.S. Hispanic women (AOR = 0.26; 95% CI = .08, .81). Conclusions: Future research focused on factors contributing to differences and similarities in HPV knowledge and awareness and HPV vaccine awareness and acceptability between these two groups of Hispanic women is warranted. Findings may assist in developing health education programs and media to promote HPV vaccination among both groups. PMID- 29333341 TI - Preventive effects of Salvia officinalis leaf extract on insulin resistance and inflammation in a model of high fat diet-induced obesity in mice that responds to rosiglitazone. AB - Background: Salvia officinalis (sage) is a native plant to the Mediterranean region and has been used for a long time in traditional medicine for various diseases. We investigated possible anti-diabetic, anti-inflammatory and anti obesity effects of sage methanol (MetOH) extract in a nutritional mouse model of obesity, inflammation and insulin resistance, as well as its effects on lipolysis and lipogenesis in 3T3-L1 cells. Methods: Diet-induced obese (DIO) mice were treated for five weeks with sage methanol extract (100 and 400 mg kg-1/day bid), or rosiglitazone (3 mg kg-1/day bid), as a positive control. Energy expenditure, food intake, body weight, fat mass, liver glycogen and lipid content were evaluated. Blood glucose, and plasma levels of insulin, lipids leptin and pro- and anti-inflammatory cytokines were measured throughout the experiment. The effects of sage MetOH extract on lipolysis and lipogenesis were tested in vitro in 3T3-L1 cells. Results: After two weeks of treatment, the lower dose of sage MetOH extract decreased blood glucose and plasma insulin levels during an oral glucose tolerance test (OGTT). An insulin tolerance test (ITT), performed at day 29 confirmed that sage improved insulin sensitivity. Groups treated with low dose sage and rosiglitazone showed very similar effects on OGTT and ITT. Sage also improved HOMA-IR, triglycerides and NEFA. Treatment with the low dose increased the plasma levels of the anti-inflammatory cytokines IL-2, IL-4 and IL-10 and reduced the plasma level of the pro-inflammatory cytokines IL-12, TNF-alpha, and KC/GRO. The GC analysis revealed the presence of two PPARs agonist in sage MetOH extract. In vitro, the extract reduced in a dose-related manner the accumulation of lipid droplets; however no effect on lipolysis was observed. Conclusions: Sage MetOH extract at low dose exhibits similar effects to rosiglitazone. It improves insulin sensitivity, inhibits lipogenesis in adipocytes and reduces inflammation as judged by plasma cytokines. Sage presents an alternative to pharmaceuticals for the treatment of diabetes and associated inflammation. PMID- 29333342 TI - Is there a link between aging and microbiome diversity in exceptional mammalian longevity? AB - A changing microbiome has been linked to biological aging in mice and humans, suggesting a possible role of gut flora in pathogenic aging phenotypes. Many bat species have exceptional longevity given their body size and some can live up to ten times longer than expected with little signs of aging. This study explores the anal microbiome of the exceptionally long-lived Myotis myotis bat, investigating bacterial composition in both adult and juvenile bats to determine if the microbiome changes with age in a wild, long-lived non-model organism, using non-lethal sampling. The anal microbiome was sequenced using metabarcoding in more than 50 individuals, finding no significant difference between the composition of juvenile and adult bats, suggesting that age-related microbial shifts previously observed in other mammals may not be present in Myotis myotis. Functional gene categories, inferred from metabarcoding data, expressed in the M. myotis microbiome were categorized identifying pathways involved in metabolism, DNA repair and oxidative phosphorylation. We highlight an abundance of 'Proteobacteria' relative to other mammals, with similar patterns compared to other bat microbiomes. Our results suggest that M. myotis may have a relatively stable, unchanging microbiome playing a role in their extended 'health spans' with the advancement of age, and suggest a potential link between microbiome and sustained, powered flight. PMID- 29333343 TI - Resounding failure to replicate links between developmental language disorder and cerebral lateralisation. AB - Background: It has been suggested that failure to establish cerebral lateralisation may be related to developmental language disorder (DLD). There has been weak support for any link with handedness, but more consistent reports of associations with functional brain lateralisation for language. The consistency of lateralisation across different functions may also be important. We aimed to replicate previous findings of an association between DLD and reduced laterality on a quantitative measure of hand preference (reaching across the midline) and on language laterality assessed using functional transcranial Doppler ultrasound (fTCD). Methods: From a sample of twin children aged from 6;0 to 11;11 years, we identified 107 cases of DLD and 156 typically-developing comparison cases for whom we had useable data from fTCD yielding a laterality index (LI) for language function during an animation description task. Handedness data were also available for these children. Results: Indices of handedness and language laterality for this twin sample were similar to those previously reported for single-born children. There were no differences between the DLD and TD groups on measures of handedness or language lateralisation, or on a categorical measure of consistency of left hemisphere dominance. Contrary to prediction, there was a greater incidence of right lateralisation for language in the TD group (19.90%) than the DLD group (9.30%), confirming that atypical laterality is not inconsistent with typical language development. We also failed to replicate associations between language laterality and language test scores. Discussion and Conclusions: Given the large sample studied here and the range of measures, we suggest that previous reports of atypical manual or language lateralisation in DLD may have been false positives. PMID- 29333344 TI - The old and the new plankton: ecological replacement of associations of mollusc plankton and giant filter feeders after the Cretaceous? AB - Owing to their great diversity and abundance, ammonites and belemnites represented key elements in Mesozoic food webs. Because of their extreme ontogenetic size increase by up to three orders of magnitude, their position in the food webs likely changed during ontogeny. Here, we reconstruct the number of eggs laid by large adult females of these cephalopods and discuss developmental shifts in their ecologic roles. Based on similarities in conch morphology, size, habitat and abundance, we suggest that similar niches occupied in the Cretaceous by juvenile ammonites and belemnites were vacated during the extinction and later partially filled by holoplanktonic gastropods. As primary consumers, these extinct cephalopod groups were important constituents of the plankton and a principal food source for planktivorous organisms. As victims or, respectively, profiteers of this case of ecological replacement, filter feeding chondrichthyans and cetaceans likely filled the niches formerly occupied by large pachycormid fishes during the Jurassic and Cretaceous. PMID- 29333345 TI - Ontogeny reversal and phylogenetic analysis of Turritopsis sp.5 (Cnidaria, Hydrozoa, Oceaniidae), a possible new species endemic to Xiamen, China. AB - Ontogeny reversal, as seen in some cnidarians, is an unprecedented phenomenon in the animal kingdom involving reversal of the ordinary life cycle. Three species of Turritopsis have been shown to be capable of inverted metamorphosis, a process in which the pelagic medusa transforms back into a juvenile benthic polyp stage when faced with adverse conditions. Turritopsis sp.5 is a species of Turritopsis collected from Xiamen, China which presents a similar ability, being able to reverse its life cycle if injured by mechanical stress. Phylogenetic analysis based on both 16S rDNA and cytochrome c oxidase subunit I (COI) genetic barcodes shows that Turritopsis sp.5 is phylogenetically clustered in a clade separate from other species of Turritopsis. The genetic distance between T. sp.5 and the Japanese species T. sp.2 is the shortest, when measured by the Kimura 2-Parameter metric, and the distance to the New Zealand species T. rubra is the largest. An experimental assay on the induction of reverse development in this species was initiated by cutting medusae into upper and lower parts. We show, for the first time, that the two dissected parts have significantly different potentials to transform into polyps. Also, a series of morphological changes of the reversed life cycle can be recognised, including medusa stage, contraction stage I, contraction stage II, cyst, cyst with stolons, and polyp. The discovery of species capable of reverse ontogeny caused by unfavorable conditions adds to the available systems with which to study the cell types that contribute to the developmental reversal and the molecular mechanisms of the directional determination of ontogeny. PMID- 29333346 TI - Boundaries in ground beetle (Coleoptera: Carabidae) and environmental variables at the edges of forest patches with residential developments. AB - Background: Few studies of edge effects on wildlife objectively identify habitat edges or explore non-linear responses. In this paper, we build on ground beetle (Coleoptera: Carabidae) research that has begun to address these domains by using triangulation wombling to identify boundaries in beetle community structure and composition at the edges of forest patches with residential developments. We hypothesized that edges are characterized by boundaries in environmental variables that correspond to marked discontinuities in vegetation structure between maintained yards and forest. We expected environmental boundaries to be associated with beetle boundaries. Methods: We collected beetles and measured environmental variables in 200 m by 200 m sampling grids centered at the edges of three forest patches, each with a rural, suburban, or urban context, in Charlotte, North Carolina, USA. We identified boundaries within each grid at two spatial scales and tested their significance and overlap using boundary statistics and overlap statistics, respectively. We complemented boundary delineation with k-means clustering. Results: Boundaries in environmental variables, such as temperature, grass cover, and leaf litter depth, occurred at or near the edges of all three sites, in many cases at both scales. The beetle variables that exhibited the most pronounced boundary structure in relation to edges were total species evenness, generalist abundance, generalist richness, generalist evenness, and Agonum punctiforme abundance. Environmental and beetle boundaries also occurred within forest patches and residential developments, indicating substantial localized spatial variation on either side of edges. Boundaries in beetle and environmental variables that displayed boundary structure at edges significantly overlapped, as did boundaries on either side of edges. The comparison of boundaries and clusters revealed that boundaries formed parts of the borders of patches of similar beetle or environmental condition. Discussion: We show that edge effects on ground beetle community structure and composition and environmental variation at the intersection of forest patches and residential developments can be described by boundaries and that these boundaries overlap in space. However, our results also highlight the complexity of edge effects in our system: environmental boundaries were located at or near edges whereas beetle boundaries related to edges could be spatially disjunct from them; boundaries incompletely delineated edges such that only parts of edges were well described by sharp transitions in beetle and/or environmental variables; and the occurrence of boundaries related to edges was apparently influenced by individual property management practices, site-specific characteristics such as development geometry, and spatial scale. PMID- 29333347 TI - Beyond harm's reach? Submersion of river turtle nesting areas and implications for restoration actions after Amazon hydropower development. AB - The global expansion of energy demands combined with abundant rainfall, large water volumes and high flow in tropical rivers have led to an unprecedented expansion of dam constructions in the Amazon. This expansion generates an urgent need for refined approaches to river management; specifically a move away from decision-making governed by overly generalized guidelines. For the first time we quantify direct impacts of hydropower reservoir establishment on an Amazon fresh water turtle. We conducted surveys along 150 km of rivers upstream of a new dam construction during the low water months that correspond to the nesting season of Podocnemis unifilis in the study area. Comparison of nest-areas before (2011, 2015) and after (2016) reservoir filling show that reservoir impacts extend 13% beyond legally defined limits. The submerged nesting areas accounted for a total of 3.8 ha of nesting habitat that was inundated as a direct result of the reservoir filling in 2016. Our findings highlight limitations in the development and implementation of existing Brazilian environmental impact assessment process. We also propose potential ways to mitigate the negative impacts of dams on freshwater turtles and the Amazonian freshwater ecosystems they inhabit. PMID- 29333348 TI - A new species of Cretalamna sensu stricto (Lamniformes, Otodontidae) from the Late Cretaceous (Santonian-Campanian) of Alabama, USA. AB - Decades of collecting from exposures of the Upper Cretaceous Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk in Alabama, USA has produced large numbers of isolated Cretalamna (sensu stricto) teeth. Many of these teeth had formerly been assigned to the extinct Late Cretaceous shark Cretalamna appendiculata (Agassiz, 1843), a taxon that is now considered largely restricted to the Turonian of Europe. Recent studies have shed light on the diversity of Late Cretaceous Cretalamna (s.s.) taxa, and here we recognize a new species from Alabama, Cretalamna bryanti. The teeth of C. bryanti sp. nov. appear aligned with the members of the Cretalamna borealis species group, but can be distinguished from these other species by a combination of the following: anterior teeth with a more pronounced and triangular lingual root protuberance, broader triangular cusp, and a taller root relative to the height of the crown; anteriorly situated lateroposterior teeth have a distally inclined or hooked main cusp and more than one pair of lateral cusplets; and lateroposterior teeth have a strong distally hooked main cusp and a root that is largely symmetrical in basal view. At present, C. bryanti sp. nov. is stratigraphically confined to the Santonian/Campanian Dicarinella asymetrica Sigal, 1952 and Globotruncanita elevata Brotzen, 1934 Planktonic Foraminiferal Zones within the Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk, and teeth have been collected from only four counties in central and western Alabama. The recognition of C. bryanti sp. nov. in Alabama adds to our knowledge on the diversity and distribution of Late Cretaceous otodontids in the region. PMID- 29333349 TI - Annual and spatial variation in composition and activity of terrestrial mammals on two replicate plots in lowland forest of eastern Ecuador. AB - Terrestrial mammals are important components of lowland forests in Amazonia (as seed dispersal agents, herbivores, predators) but there are relatively few detailed studies from areas that have not been affected by human activities (e.g., hunting, logging). Yet, such information is needed to evaluate effects of humans elsewhere. We used camera traps to sample medium to large-sized terrestrial mammals at a site in lowland forests of eastern Ecuador, one of the most biologically rich areas in the world. We deployed cameras on two study plots in terra firme forest at Tiputini Biodiversity Station. Sixteen cameras were arranged 200 m apart in a 4 * 4 grid on each plot. Cameras were operated for 60 days in January-March, 2014-2017, for a total of 3,707 and 3,482 trap-days on the two plots (Harpia, Puma). A total of 28 species were recorded; 26 on Harpia and 25 on Puma. Number of species recorded each year was slightly greater on Harpia whereas overall capture rates (images/100 trap-days) were higher on Puma. Although most species were recorded on each plot, differences in capture rates meant that yearly samples on a given plot were more similar to each other than to samples on the other plot. Images of most species showed a clumped distribution pattern on each plot; Panthera onca was the only species that did not show a clumped distribution on either plot. Images at a given camera location showed no evidence of autocorrelation with numbers of images at nearby camera locations, suggesting that species were responding to small-scale differences in habitat conditions. A redundancy analysis showed that environmental features within 50 or 100 m of camera locations (e.g., elevation, variation in elevation, slope, distance to streams) accounted for significant amounts of variation in distribution patterns of species. Composition and relative importance based on capture rates were very similar to results from cameras located along trails at the same site; similarities decreased at increasing spatial scales based on comparisons with results from other sites in Ecuador and Peru. PMID- 29333350 TI - Scale-up of a Luminescent Solar Concentrator-Based Photomicroreactor via Numbering-up. AB - The use of solar energy to power chemical reactions is a long-standing dream of the chemical community. Recently, visible-light-mediated photoredox catalysis has been recognized as the ideal catalytic transformation to convert solar energy into chemical bonds. However, scaling photochemical transformations has been extremely challenging due to Bouguer-Lambert-Beer law. Recently, we have pioneered the development of luminescent solar concentrator photomicroreactors (LSC-PMs), which display an excellent energy efficiency. These devices harvest solar energy, convert the broad solar energy spectrum to a narrow-wavelength region, and subsequently waveguide the re-emitted photons to the reaction channels. Herein, we report on the scalability of such LSC-PMs via a numbering-up strategy. Paramount in our work was the use of molds that were fabricated via 3D printing. This allowed us to rapidly produce many different prototypes and to optimize experimentally key design aspects in a time-efficient fashion. Reactors up to 32 parallel channels have been fabricated that display an excellent flow distribution using a bifurcated flow distributor (standard deviations below 10%). This excellent flow distribution was crucial to scale up a model reaction efficiently, displaying yields comparable to those obtained in a single-channel device. We also found that interchannel spacing is an important and unique design parameter for numbered-up LSC-PMs, which influences greatly the photon flux experienced within the reaction channels. PMID- 29333351 TI - Understanding the Effect of the Dianhydride Structure on the Properties of Semiaromatic Polyimides Containing a Biobased Fatty Diamine. AB - In this work we report the effect of the hard block dianhydride structure on the overall properties of partially biobased semiaromatic polyimides. For the study, four polyimides were synthesized using aliphatic fatty dimer diamine (DD1) as the soft block and four different commercially available aromatic dianhydrides as the hard block: 4,4'-(4,4'-isopropylidenediphenoxy) bis(phthalic anhydride) (BPADA), 4,4'-oxidiphthalic anhydride (ODPA), 4,4'-(Hexafluoroisopropylidene) diphthalic anhydride (6FDA), and 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA). The polymers synthesized were fully organo-soluble thermoplastic branched polyimides with glass transition temperatures close to room temperature. The detailed analysis took into account several aspects of the dianhydrides structure (planarity, rigidity, bridging group between the phtalimides, and electronic properties) and related them to the results obtained by differential scanning calorimetry, rheology, fluorescence and broadband dielectric spectroscopy. Moreover, the effects of physical parameters (crystallization and electronic interactions) on the relaxation behavior are discussed. Despite the presence of the bulky branched soft block given by the dimer diamine, all polyimides showed intermolecular charge transfer complexes, whose extent depends on the electronic properties of the dianhydride hard block. Furthermore, the results showed that polyimides containing flexible and bulky hard blocks turned out fully amorphous while the more rigid dianhydride (BPDA) led to a nanophase separated morphology with low degree of crystallinity resulting in constrained segmental relaxation with high effect on its mechanical response with the annealing time. This work represents the first detailed report on the development and characterization of polyimides based on a biobased fatty dimer diamine. The results highlight the potential of polymer property design by controlled engineering of the aromatic dianhydride blocks. PMID- 29333352 TI - Smartphone-Based Point-of-Care Urinalysis Under Variable Illumination. AB - Urine tests are performed by using an off-the-shelf reference sheet to compare the color of test strips. However, the tabular representation is difficult to use and more prone to visual errors, especially when the reference color-swatches to be compared are spatially apart. Thus, making it is difficult to distinguish between the subtle differences of shades on the reagent pads. This manuscript represents a new arrangement of reference arrays for urine test strips (urinalysis). Reference color swatches are grouped in a doughnut chart, surrounding each reagent pad on the strip. The urine test can be evaluated using naked eye by referring to the strip with no additional sheet necessary. Along with this new strip, an algorithm for smartphone based application is also proposed as an alternative to deliver diagnostic results. The proposed colorimetric detection method evaluates the captured image of the strip, under various color spaces and evaluates ten different tests for urine. Thus, the proposed system can deliver results on the spot using both naked eye and smartphone. The proposed scheme delivered accurate results under various environmental illumination conditions without any calibration requirements, exhibiting performances suitable for real-life applications and an ease for a common user. PMID- 29333353 TI - Spine Stereotactic Body Radiation Therapy Residual Setup Errors and Intra Fraction Motion Using the Stereotactic X-Ray Image Guidance Verification System. AB - Purpose: To determine the precision of our institution's current immobilization devices for spine SBRT, ultimately leading to recommendations for appropriate planning margins. Methods: We identified 12 patients (25 treatments) with spinal metastasis treated with spine Stereotactic Body Radiation Therapy (SBRT). The Body-FIX system was used as immobilization device for thoracic (T) and lumbar (L) spine lesions. The head and shoulder mask system was used as immobilization device for cervical (C) spine lesions. Initial patient setup used the infrared positioning system with body markers. Stereotactic X-ray imaging was then performed and correction was made if the initial setup error exceeded predetermined institutional tolerances, 1.5 mm for translation and 2 degrees for rotation. Three additional sets of verification X-rays were obtained pre-, mid-, and post-treatment for all treatments. Results: Intrafraction motion regardless of immobilization technique was found to be 1.28 +/- 0.57 mm. The mean and standard deviation of the variances along each direction were as follows: Superior-inferior, 0.56 +/- 0.39 mm and 0.77 +/- 0.52 mm, (p = 0.25); Anterior posterior, 0.57 +/- 0.43 mm and 1.14 +/- 0.61 mm, (p = 0.01); Left-right, 0.48 +/ 0.34 mm and 0.74 +/- 0.40 mm, (p = 0.09) respectively. There was a significantly greater difference in the average 3D variance of the BodyFIX as compared to the head and shoulder mask immobilization system, 1.04 +/- 0.46 mm and 1.71 +/- 0.52 mm; (p = 0.003) respectively. Conclusions: Overall, our institution's image guidance system using stereotactic X-ray imaging verification provides acceptable localization accuracy as previously defined in the literature. We observed a greater intrafraction motion for the head and shoulder mask as compared with the BodyFIX immobilization system, which may be a result of greater C-spine mobility and/or the suboptimal mask immobilization. Thus, better immobilization techniques for C-spine SBRT are needed to reduce setup error and intrafraction motion. We are currently exploring alternative C-spine immobilization techniques to improve set up accuracy and decrease intrafraction motion during treatment. PMID- 29333354 TI - Novel Wavelet-Based Segmentation of Prostate CBCT Images with Implanted Calypso Transponders. AB - Segmentation of prostate Cone Beam CT (CBCT) images is an essential step towards real-time adaptive radiotherapy (ART). It is challenging for Calypso patients, as more artifacts generated by the beacon transponders are present on the images. We herein propose a novel wavelet-based segmentation algorithm for rectum, bladder, and prostate of CBCT images with implanted Calypso transponders. For a given CBCT, a Moving Window-Based Double Haar (MWDH) transformation is applied first to obtain the wavelet coefficients. Based on a user defined point in the object of interest, a cluster algorithm based adaptive thresholding is applied to the low frequency components of the wavelet coefficients, and a Lee filter theory based adaptive thresholding is applied on the high frequency components. For the next step, the wavelet reconstruction is applied to the thresholded wavelet coefficients. A binary (segmented) image of the object of interest is therefore obtained. 5 hypofractionated Calypso prostate patients with daily CBCT were studied. DICE, Sensitivity, Inclusiveness and DeltaV were used to evaluate the segmentation result. PMID- 29333355 TI - Bilateral Peripheral Nerve Field Stimulation for Intractable Coccygeal Pain: A Case Study Using Dual Lead Intercommunication. AB - Coccygeal pain is a difficult chronic pain problem with mixed response to various treatments. This is a report of a case of coccygeal pain that after failing various conservative and interventional procedures over five years was evaluated with a temporary peripheral sacral fascial lead followed by implantation of bilateral sacral paramedian leads for peripheral nerve field stimulation (PNFS). This resulted in marked pain control and resumption of full activity. The visual analog scale (VAS) pain score improved from eight pre-implant to one after implant and has remained at that level in follow-up. Peripheral nerve field stimulation has been reported for axial chronic back pain, post-laminectomy pain and sacroiliac joint pain either alone or in conjunction with epidural spinal cord stimulation. Both single and parallel leads have been used to provide wider stimulation but differences in location have not been examined. This is the first case report of the use of PNFS for treatment of intractable chronic coccygeal pain. The effectiveness of PNFS was established for this patient by using a prolonged 10-day temporary trial period followed by a 30-day interval without stimulation during which the pain returned to the pre-trial level before proceeding with permanent implantation, it was clear that in this case, PNFS was effective for pain control. Interestingly, the trial and permanent leads were both in the posterior sacral fascia but not in identical positions yet equally effective for pain control. The observation of the effectiveness of different positions may indicate that at least for peripheral field stimulation there may be significant current spread in the fascia. Two and three months after the implant, we examined the effect of different lead settings and the effect of unilateral stimulation compared with bilateral stimulation with and without interlead communication. The patient feedback in this case provides some understanding of the effect of field stimulation with different lead placements. A trial of a deep peripheral fascial lead for sacral and coccygeal field stimulation is a simple option and may be a reasonable approach to consider in the range of treatments for chronic coccygeal pain. PMID- 29333356 TI - Metachronous Testicular Cancer After Orchiectomy: A Rare Case. AB - Testicular cancer represents approximately 1% of all cancers diagnosed in males. The prevalence of bilateral testicular germ cell tumor cases varies from 1% to 5%. Intratubular germ cell neoplasia (ITGCN) is a precursor for almost all testicular germ cell tumors (TGCT) and is one of the highest risks of developing contralateral testicular cancer. The radical orchiectomy is still preferred for the treatment of testicular cancer. However, in some cases like solitary testis, bilateral cancer or if the tumor size is under 30% percent of the testicular extent, organ-sparing surgery can be an option. There are just a few published reports of metachronous contralateral testicular cancer, developed after orchiectomy with the histopathology of the intratubular germ cell neoplasia. PMID- 29333357 TI - Salvage Stereotactic Radiosurgery for Multiple Brain Recurrences: How Much is Enough? AB - Stereotactic radiosurgery (SRS) can be used as a salvage treatment in selected patients with recurrent brain metastases after previous brain radiation. We report the case of a patient with metastatic lung adenocarcinoma who experienced recurrence numerous times in the brain and was successfully treated each time with SRS. For this patient, brain imaging surveillance helped identify metastases early for salvage SRS. We have also included a discussion of published literature regarding the neurocognitive toxicity of repeated courses of SRS. PMID- 29333358 TI - Investigating the Seasonal and Diurnal Cycles of Ocean Vector Winds Near the Philippines Using RapidScat and CCMP. AB - The seasonal and diurnal cycles of ocean vector winds in the domain of the South China Sea are characterized and compared using RapidScat and the Cross-Calibrated Multi-Platform (CCMP) data sets. Broad agreement in seasonal flow patterns exists between these data sets during the year 2015. Both observe the dramatic reversal from wintertime trade winds (November-April) to westerly flow associated with the summer monsoon (May-October). These seasonal changes have strong but not equivalent effects on mean wind divergence patterns in both data sets. Specifically near the Philippines, the data sets agree on several aspects of the seasonal mean and diurnal cycle of near-surface vector winds and divergence. In particular, RapidScat and CCMP agree that daytime onshore and nocturnal offshore flow patterns affect the diurnal cycle of winds up to ~200 km west of Luzon, Philippines. Observed disagreements over the diurnal cycle are explainable by measurement uncertainty, as well as shortcomings in both data sets. PMID- 29333359 TI - Activities of daily living independence level for home discharge in stroke patients based on number of caregivers: an analysis of the Japan Rehabilitation Database. AB - Purpose This study aimed to calculate cut-off values of activities of daily living independence level for stroke patient home discharge based on the number of family caregivers. Method The subjects comprised 1442 stroke patients (26 hospitals) who were registered of the Japanese Rehabilitation Database. Receiver operating characteristic curves were used to elucidate the BI and FIMR instrument scores necessary for home discharge. Analysis was performed for each subject according to the number of family caregivers, i.e., no caregiver, one person, two persons or more, and overall. Result The BI cut-off points that discriminated between home discharge and other were 65/60 points overall, 75/70 points in patients with no caregiver, 65/60 points in patients with one caregiver, and 60/55 points in patients with two or more caregivers. The FIMR instrument cut-off points were 90/89 points overall, 101/100 points in patients with no caregiver, 87/86 points in patients with one caregiver, and 87/86 points in patients with two or more caregivers. Conclusion Our results indicated that home discharge for patients with many caregivers was possible even with low ADL independence levels, and that there was a large difference in cut-off values depending on the presence or absence of one caregiver. PMID- 29333360 TI - Correlation between changes of contralesional cortical activity and motor function recovery in patients with hemiparetic stroke. AB - OBJECTIVE: To investigate the correlation between changes of contralesional cortical excitability evaluated by transcranial magnetic stimulation (TMS) and functional recovery in patients with hemiparetic stroke. METHODS: Eight inpatients (mean age: 75.9+/-13.8 years) with mild to moderate hemiparesis were enrolled. TMS was delivered to the optimal scalp position over the contralesional (ipsilateral to the paresis) primary motor cortex (M1) to activate the unaffected flexor carpi radialis muscle (FCR) while the patient picked up a wooden block with the affected hand. The amplitude of the motor-evoked potential (MEP) was measured and then was divided by the resting MEP amplitude (MEP ratio). For evaluation of motor function, we tested grip strength (GS), performed the upper extremity motor section of the Fugl-Meyer Assessment (FMA-UE), and performed the Purdue Pegboard Test (PPT) when the patients were admitted to our hospital (T1) and 2 months after admission (T2). RESULTS: The MEP ratio was significantly decreased at the second examination. The partial correlations between the MEP ratio and FMA-UE at T1, and PPT of an affected hand at T2 were observed while controlling for the period after stroke onset as the confounding variable. CONCLUSION: The reduction of contralesional cortical hyperactivity is related to the functional recovery in part, but not related with the period after stroke onset. This suggests that enhanced reduction of contralesional M1 hyperactivity contributes to functional recovery after stroke. PMID- 29333361 TI - Factors affecting health-related quality of life one year after lumbar spinal fusion. AB - OBJECTIVE: To identify preoperative factors that affect the medical outcome study 36-item short form health survey (SF-36) score 1 year after lumbar spinal fusion. METHODS: Participants were selected from among 624 patients who underwent lumbar spinal fusion between April 1, 2009 and March 31, 2011 who were followed up for 1 year or more. The SF-36 version 2 was used to evaluate HRQOL. The following preoperative parameters were investigated: sex, age, body mass index (BMI), employment status (other than home-making), living with other family members, smoking, orthopedic disorder in another part of the body (other than lumbar spinal disease), history of lumbar spinal surgery, bladder function, and leg muscle strength. RESULTS: 94 patients were included. None of the independent preoperative factors exhibited a high degree of correlation, and the absence of multicollinearity was confirmed before further analysis was performed. The first canonical variates were age and leg muscle strength, which had a major effect on physical functioning, role physical, and role emotional 1 year after surgery, and the second canonical variates were employment status, sex, and orthopedic disorder in another part of the body, which had a major effect on general health 1 year after surgery. CONCLUSIONS: The SF-36 score 1 year after lumbar spinal fusion was affected by the preoperative factors of age, leg muscle strength, living with other family members, employment status, sex, and orthopedic disorders in another part of the body. PMID- 29333362 TI - The coordination of joint movements during sit-to-stand motion in old adults: the uncontrolled manifold analysis. AB - OBJECTIVE: Sit-to-stand motion (STS) is a dynamic motion utilized in fundamental activities of daily living and requires extensive joint movement in the lower extremities and the trunk and coordination of multiple body segments. The present study aimed to investigate whether aging affects the motor coordination of joint movements required to stabilize the horizontal and vertical movement of center of mass using the uncontrolled manifold (UCM) analysis. METHOD: We recruited 39 older adults with no musculoskeletal and/or neuromuscular conditions that affected STS, along with 21 healthy younger adults. All subjects performed five STS trials from a chair with the seat height adjusted to the length of their lower leg at a self-selected motion speed. Kinematic data were collected using a three-dimensional motion analysis system. We performed the UCM analysis to assess the effects of joint angle variance (elemental variable) to stabilize the horizontal and vertical movement of COM (performance variable) and calculated the joint angle variance that does not affect COM (VUCM), the variance that affects COM (VORT), and the synergy index (DeltaV). RESULTS: DeltaV values in the horizontal direction were higher in the older adults than in the younger adults, but DeltaV values in the vertical direction were lower in the older adults than in the younger adults. CONCLUSION: Older adults require increasing levels of stabilization of horizontal movement of COM after buttocks-off in the STS maneuver. As a result, variance in the joint angle of the lower extremities indicated no kinematic synergy for stabilizing the vertical movement of COM. PMID- 29333364 TI - Biodegradable osteofixation in bimaxillary orthognathic surgery. PMID- 29333363 TI - Creating a multi-center rare disease consortium - the Consortium of Eosinophilic Gastrointestinal Disease Researchers (CEGIR). AB - Eosinophilic gastrointestinal disorders (EGIDs) affect various segments of the gastrointestinal tract. Since these disorders are rare, collaboration is essential to enroll subjects in clinical studies and study the broader population. The Rare Diseases Clinical Research Network (RDCRN), a program of the National Center for Advancing Translational Sciences (NCATS), funded the Consortium of Eosinophilic Gastrointestinal Disease Researchers (CEGIR) in 2014 to advance the field of EGIDs. CEGIR facilitates collaboration among various centers, subspecialties, patients, professional organizations and patient advocacy groups and includes 14 clinical sites. It has successfully initiated two large multi-center clinical studies looking to refine EGID diagnoses and management. Several pilot studies are underway that focus on various aspects of EGIDs including novel therapeutic interventions, diagnostic and monitoring methods, and the role of the microbiome in pathogenesis. CEGIR currently nurtures five physician-scholars through a career training development program and has published more than 40 manuscripts since its inception. This review focuses on CEGIR's operating model and progress and how it facilitates a framework for exchange of ideas and stimulates research and innovation. This consortium provides a model for progress on other potential clinical areas. PMID- 29333365 TI - Association between headache and temporomandibular disorder. AB - Headaches are one of the most common conditions associated with temporomandibular disorder (TMD). In the present paper, we evaluated the relationship between headache and TMD, determined whether headache influences the symptoms of TMD, and reported two cases of TMD accompanied by headache. Our practical experience and a review of the literature suggested that headache increases the frequency and intensity of pain parameters, thus complicating dysfunctional diseases in both diagnostic and treatment phases. Therefore, early and multidisciplinary treatment of TMD is necessary to avoid the overlap of painful events that could result in pain chronicity. PMID- 29333366 TI - A review of temporomandibular joint-related papers published between 2014-2015. AB - We conducted a retrospective study and reviewed the temporomandibular joint (TMJ) related papers published in a leading international journal, Journal of Oral and Maxillofacial Surgery, between January 2014 and December 2015. The study was conducted to ascertain and compare the trends of articles being published in the years 2014 and 2015. A total of 28 articles were reviewed, of which most of the full-length articles were on clinical management and outcomes and the role of radiology. The bulk of the studies were prospective, and less interest was shown in experimental research. A thorough review and analysis thus gives the impression that there is a great need for well-designed clinical studies on TMJ. PMID- 29333367 TI - Stepwise verification of bone regeneration using recombinant human bone morphogenetic protein-2 in rat fibula model. AB - Objectives: The purpose of this study was to introduce our three experiments on bone morphogenetic protein (BMP) and its carriers performed using the critical sized segmental defect (CSD) model in rat fibula and to investigate development of animal models and carriers for more effective bone regeneration. Materials and Methods: For the experiments, 14, 16, and 24 rats with CSDs on both fibulae were used in Experiments 1, 2, and 3, respectively. BMP-2 with absorbable collagen sponge (ACS) (Experiments 1 and 2), autoclaved autogenous bone (AAB) and fibrin glue (FG) (Experiment 3), and xenogenic bone (Experiment 2) were used in the experimental groups. Radiographic and histomorphological evaluations were performed during the follow-up period of each experiment. Results: Significant new bone formation was commonly observed in all experimental groups using BMP-2 compared to control and xenograft (porcine bone) groups. Although there was some difference based on BMP carrier, regenerated bone volume was typically reduced by remodeling after initially forming excessive bone. Conclusion: BMP-2 demonstrates excellent ability for bone regeneration because of its osteoinductivity, but efficacy can be significantly different depending on its delivery system. ACS and FG showed relatively good bone regeneration capacity, satisfying the essential conditions of localization and release-control when used as BMP carriers. AAB could not provide release-control as a BMP carrier, but its space-maintenance role was remarkable. Carriers and scaffolds that can provide sufficient support to the BMP/carrier complex are necessary for large bone defects, and AAB is thought to be able to act as an effective scaffold. The CSD model of rat fibula is simple and useful for initial estimate of bone regeneration by agents including BMPs. PMID- 29333368 TI - Oral lesions associated with human immunodeficiency virus in 75 adult patients: a clinical study. AB - Objectives: The objective of this study was to investigate the presence of oral lesions in human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) patients in a descriptive cross-sectional study, and to establish their presence according to levels of CD4+ cells (including the CD4+/CD8+ cell ratio). Materials and Methods: A total of 75 patients infected with HIV were included. Oral lesions were observed and classified using World Health Organization classification guidelines. Potential correlations between the presence and severity of oral lesions and CD4+ cells, including the CD4+/CD8+ cell ratio, were studied. Results: The most frequent oral lesion detected was oral pseudomembranous candidiasis (80.0%), followed by periodontal disease (40.0%), herpetic lesions (16.0%), hairy leukoplakia (16.0%), gingivitis (20.0%), oral ulceration (12.0%), Kaposi's sarcoma (8.0%), and non-Hodgkin's lymphoma (4.0%). The CD4+ count was <200 cells/mm3 in 45 cases (60.0%), between 200-500 cells/mm3 in 18 cases (24.0%), and >500 cells/mm3 in 12 cases (16.0%). The mean CD4+ count was 182.18 cells/mm3. The mean ratio of CD4+/CD8+ cells was 0.26. All patients showed at least one oral manifestation. Conclusion: There was no correlation between the CD4+/CD8+ cell ratio and the presence of oral lesions. The severity of the lesions was more pronounced when the CD4+ cell count was less than 200 cells/mm3. PMID- 29333369 TI - Assessment of the anterior loop of the inferior alveolar nerve via cone-beam computed tomography. AB - Objectives: The aim of this study was to evaluate different anatomical variants of the anterior loop of the inferior alveolar nerve (IAN) via cone-beam computed tomography (CBCT). Materials and Methods: CBCT images of 71 patients (36 males and 35 females) were evaluated. We used the classification described by Solar for IAN evaluation. In this classification, three different types of IAN loops were introduced prior to emerging from the mental foramen. We classified patients according to this system and introduced a new, fourth type. Results: Type I was seen in 15 sites (10.6%), type II in 39 sites (27.5%), and type III in 50 sites (35.2%). We found a new type in 38 sites (26.8%) that constituted a fourth type. Conclusion: We found that type III was the most common variant. In the fourth type, the IAN was not detectable because the main nerve was adjacent to the cortical plate and the incisive branch was thinner than the main branch and alongside it. In this type, more care is needed for surgeries including inferior alveolar and mental nerve transposition. PMID- 29333370 TI - The efficacy of oral habit modification on headache. AB - Objectives: Headache is the most common complaint of patients suffering from temporomandibular joint disorders (TMDs). Thus, temporomandibular joint (TMJ) examinations maybe necessary in patients with headache. Considering the high prevalence of bruxism and TMDs in patients with headache the effects of conservative TMD treatment on headache should be assessed. Materials and Methods: Patients were questioned about headaches in the past three months. Those responding affirmatively to this question were examined for TMD and bruxism. After the examinations, 219 patients remained in the study and received self management instructions. Patients were requested to modify oral habits except when eating or sleeping. The degree of pain (visual analogue scale), headache disability index (HDI), frequency of headaches (FH) per month and TMD intensity were evaluated. Results: The median levels of pain, HDI, FH, and TMD intensity were 8, 44, 8, and 7, respectively, before modifying oral habits and decreased to 4, 24, 2, and 3, respectively, after intervention. These decreases were statistically significant. Conclusion: Having patients maintain free space between the teeth and relax muscles can be an efficient method to treat headache and TMD, especially when repeated frequently. PMID- 29333371 TI - Use of repeat anterior maxillary distraction to correct residual midface hypoplasia in cleft patients. AB - Objectives: The study was designed to evaluate the efficacy of performing a second, repeat anterior maxillary distraction (AMD) to treat residual cleft maxillary hypoplasia. Materials and Methods: Five patients between the ages of 12 to 15 years with a history of AMD and with residual cleft maxillary hypoplasia were included in the study. Inclusion was irrespective of gender, type of cleft lip and palate, and the amount of advancement needed. Repeat AMD was executed in these patients 4 to 5 years after the primary AMD procedure to correct the cleft maxillary hypoplasia that had developed since the initial procedure. Orthopantomogram (OPG) and lateral cephalograms were taken for evaluation preoperatively, immediately after distraction, after consolidation, and one year postoperatively. The data obtained was tabulated and a Mann Whitney U-test was used for statistical comparisons. Results: At the time of presentation, a residual maxillary hypoplasia was observed with a well maintained distraction gap on the OPG which ruled out the occurrence of a relapse. Favorable movement of the segments without any resistance was seen in all patients. Mean maxillary advancement of 10.56 mm was achieved at repeat AMD. Statistically significant increases in midfacial length, SNA angle, and nasion perpendicular to point A distance was achieved (P=0.012, P=0.011, and P=0.012, respectively). Good profile was achieved for all patients. Minimal transient complications, for example anterior open bite and bleeding episodes, were managed. Conclusion: Addressing the problem of cleft maxillary hypoplasia at an early age (12-15 years) is beneficial for the child. Residual hypoplasia may develop in some patients, which may require additional corrective procedures. The results of our study show that AMD can be repeated when residual deformity develops with the previous procedure having no negative impact on the results of the repeat procedure. PMID- 29333372 TI - Ghost cell odontogenic carcinoma on right mandible and its respective surgical reconstruction: a case report. AB - Calcifying cystic odontogenic tumor (CCOT) is defined as an odontogenic cyst-like benign neoplasm that characteristically contains several ghost cells, ameloblastoma-like epithelium, and occasional calcification. Ghost cell odontogenic carcinoma (GCOC), a malignant form of CCOT, is an exceptionally rare malignant tumor. In this report, we present a case of a 53-year-old man whose chief complaint was a solitary mass on the right mandible area. The mass was completely removed through an extraoral surgical approach and reconstructive surgery was performed in two phases. PMID- 29333373 TI - Correction of congenital cleft earlobe with front and back flaps. AB - Congenital auricular deformities may be either deformational or malformational. Malformational anomalies present with a skin or cartilage shortage. Two cases with congenital cleft earlobe were presented. A new surgical technique using a two-layered repair with front and back flaps were introduced. She waited to begin wearing earrings until six months after the surgery to prevent possible scar contracture. The patients were followed up for a period ranging from 3 to 14 months. The earlobe volume deficiency was replaced, and acceptable scar maturation was obtained. PMID- 29333374 TI - Asymptomatic bilateral maxillary and mandibular impacted permanent canines: serendipity in dental outpatient department. PMID- 29333375 TI - Impact of FTO SNPs rs9930506 and rs9939609 in Prostate Cancer Severity in a Cohort of Puerto Rican Men. AB - Background: Obesity is prevalent in PR and has been associated with prostate cancer (PCa) mortality and aggressiveness. Polymorphisms (SNPs) rs9930506 and rs9939609 in the FTO gene have been associated with both obesity and PCa. The aim of this work was to ascertain whether the presence of these SNPs is associated with PCa risk and severity in a cohort of Puerto Rican men. Methods and findings: The study population consisted of 513 Puerto Rican men age ranging from 40-79 years old who underwent radical prostatectomy (RP) as the first treatment for PCa and 128 healthy Puerto Rican men age ranging from 40-79 years old. Genomic DNA (gDNA) was extracted and SNPs were determined by Real-Time PCR. PCa severity was defined based on RP stage and Gleason Score. The relationship of FTO SNPs with demographic, clinical characteristics, PCa status and PCa severity were assessed. Logistic regression models with a 95% confidence interval (CI) determined SNPs interaction with PCa risk and severity odds ratio (ORs). Results and discussion: BMI, age and PSA were considered as confounders. Hardy-Weinberg equilibrium was present for both SNPs. The heterozygous forms (A/G; T/A) were the most prevalent genotypes and the frequency of alleles and genotypes for both SNPs agreed with those published in 1000 genomes. Results suggest an inverse association between the mutated rs9939609 and the risk of having PCa (OR: 0.53, 95% CI: 0.31-0.92) and a positive association with overweight (OR: 1.05, 95% CI: 0.68-1.62). Importantly, among the cases that were overweight, those with mutated rs9939609 had a greater chance of high severity PCa (OR: 1.39, 95% CI: 0.84-2.32) although these results were not statistical significant upon adjustment. Limitations of the study were the relatively small cohort and lack of access to the weight history of all our subjects. Conclusion: Results offer a research line to be followed with an expanded number of subjects that may provide a better statistical significance, to unravel the high mortality rate in this population. PMID- 29333377 TI - Dietary L-Arginine Intakes and the Risk of Metabolic Syndrome: A 6-Year Follow-Up in Tehran Lipid and Glucose Study. AB - This study was conducted to investigate whether regular dietary intake of L arginine could affect the occurrence of metabolic syndrome (MetS). Eligible adult men and women (n=1,237), who participated in the Tehran Lipid and Glucose Study, were followed for a median of 6.3 years. Dietary intakes of L-arginine and serum nitrate and nitrite (NOx) concentration were assessed at baseline (2006~2008), and demographics, anthropometrics, and biochemical variables were evaluated at baseline and follow-up examinations. The occurrence of MetS was assessed in relation to total L-arginine, intakes of L-arginine from animal and plant sources, with adjustment of potential confounding variables. Participants who had higher intake of L-arginine also had higher serum NOx at baseline (35.0 vs. 30.5 MUmol/L, P<0.05). After 6 years of follow-up, higher intakes of L-arginine from animal sources were accompanied with increased risk of MetS [odd ratios (OR)=1.49, 95% confidence interval (95% CI)=1.02~2.18]. Compared to the lowest, the highest intakes of L-arginine from plant sources were related to significantly reduced risk of MetS (OR=0.58, 95% CI=0.32~0.99). In conclusion, our findings suggest a potentially protective effect of plant derived L-arginine intakes against development of MetS and its phenotypes; moreover, higher intakes of L-arginine from animal sources could be a dietary risk factor for development of metabolic disorders. PMID- 29333378 TI - Associations between Self-Reported Sleep Quality and Duration and Dietary Consumptions, Psychological Symptoms, and Obesity in Korean Adults. AB - Sleep pattern disruptions have been reported to be associated with an increased risk of obesity. This study was performed to investigate the association between sleep quality and sleep duration with dietary consumption, psychological factors, and obesity in Korean adults. A total of 288 Korean men and women who visited a public health center were included in this study. Data on general characteristics, health-related habits, psychological symptoms, dietary intake, and sleep patterns (including quality and duration) were collected using self report questionnaires. Approximately half of the included Korean adults experienced sleep of low quality and short duration. Subjects who reported short sleep durations had a significantly higher weight (P=0.015), body mass index (P<0.001), and prevalence of obesity (P=0.012) than those reporting proper sleep durations. After adjustment for covariates, subjects reporting short sleep durations consumed more dietary carbohydrates (P=0.043) and higher levels of perceived stress (P=0.001), depression (P=0.001), and anxiety (P<0.001) than subjects reporting proper sleep durations. However, obesity-related variables, dietary intake and psychosocial symptoms did not differ significantly by reported sleep quality. The results of this study demonstrated that sleep duration but not sleep quality was associated with dietary macronutrient intake and psychological symptoms, which might affect obesity. PMID- 29333376 TI - Anti-Inflammatory and Anti-Obesity Properties of Food Bioactive Components: Effects on Adipose Tissue. AB - Obesity is an epidemic and costly disease affecting 13% of the adult population worldwide. Obesity is associated with adipose tissue hypertrophy and hyperplasia, as well as pathologic endocrine alterations of adipose tissue including local and chronic systemic low-grade inflammation. Moreover, this inflammation is a risk factor for both metabolic syndrome (MetS) and insulin resistance. Basic and clinical studies demonstrate that foods containing bioactive compounds are capable of preventing both obesity and adipose tissue inflammation, improving obesity-associated MetS in human subjects and animal models of obesity. In this review, we discuss the anti-obesity and anti-inflammatory protective effects of some bioactive polyphenols of plant origin and omega-3 polyunsaturated fatty acids, available for the customers worldwide from commonly used foods and/or as components of commercial food supplements. We review how these bioactive compounds modulate cell signaling including through the nuclear factor-kappaB, adenosine monophosphate-activated protein kinase, mitogen-activated protein kinase, toll-like receptors, and G-protein coupled receptor 120 intracellular signaling pathways and improve the balance of pro- and anti-inflammatory mediators secreted by adipose tissue and subsequently lower systemic inflammation and risk for metabolic diseases. PMID- 29333379 TI - Broccoli (Brassica oleracea) Reduces Oxidative Damage to Pancreatic Tissue and Combats Hyperglycaemia in Diabetic Rats. AB - Oxidative stress plays a pivotal role in the development of diabetes and hyperglycaemia. The protective effects of natural extracts against diabetes are mainly dependent on their antioxidant and hypoglycaemic properties. Broccoli (Brassica oleracea) exerts beneficial health effects in several diseases including diabetes; however, the mechanism has not been elucidated yet. The present study was carried out to evaluate the potential hypoglycaemic and antioxidant properties of aqueous broccoli extracts (BEs) in diabetic rats. Streptozotocin (STZ) drug was used as a diabetogenic agent in a single intraperitoneal injection dose of 50 mg/kg body weight. The blood glucose level for each rat was measured twice a week. After 8 weeks, all animals were fasted overnight and sacrificed; pancreatic tissues were homogenized and used for measuring oxidative DNA damage, biochemical assessment of glutathione (GSH), and total antioxidant capacity (TAC) as well as histopathological examination for pancreatic tissues was examined. Diabetic rats showed significantly higher levels of DNA damage, GSH depletion, and impaired TAC levels in comparison to non diabetics (P<0.05). The treatment of diabetic rats with BE significantly reduced DNA damage and conserved GSH and TAC values (P<0.01). BE attenuated pancreatic histopathological changes in diabetic rats. The results of this study indicated that BE reduced the STZ mediated hyperglycaemia and the STZ-induced oxidative injury to pancreas tissue. The used in vivo model confirmed the efficacy of BE as an anti-diabetic herbal medicine and provided insights into the capacity of BE to be used for phytoremediation purposes for human type 2 diabetes. PMID- 29333380 TI - Anti-Obesity Property of Lichen Thamnolia vermicularis Extract in 3T3-L1 Cells and Diet-Induced Obese Mice. AB - Thamnolia vermicularis (TV) is an edible lichen that is prevalent in the alpine zone of East Asia. This study evaluated the feasibility of using TV acetone extracts as a functional food based on experiments using cell line and obese mice. The cellular triglyceride levels and Oil red O staining of 3T3-L1 cells indicated that TV extracts (5 and 10 MUg/mL) dose-dependently suppressed adipocyte differentiation and lipid accumulation compared with the control. The TV extract (0.4%, w/w) in a high-fat diet (HFD) was supplemented to C57BL/6N mice for 12 weeks, and TV extract supplement significantly reduced visceral fat mass and body weight compared with HFD feeding alone. The TV extract also induced significant decreases in serum and hepatic lipids, whereas it increased the serum high-density lipoproteins-cholesterol/total cholesterol ratio and fecal lipids levels. Moreover, the TV extract led to significantly lower homeostasis model assessment of insulin resistance in diet-induced obese mice. Taken together, these results suggest that the TV extract may have anti-obesity effects, including lipid-lowering, and it is a natural resource with the potential for use in obesity management. PMID- 29333381 TI - Changes in Drosophila melanogaster Sleep-Wake Behavior Due to Lotus (Nelumbo nucifera) Seed and Hwang Jeong (Polygonatum sibiricum) Extracts. AB - We evaluated the sleep enhancement activity of the medicinal herbs valerian (Valeriana officinalis), jujube (Ziziphus jujube), lotus seed (Nelumbo nucifera), Gastrodia elata, Polygonatum sibiricum, and baekbokryung (Poria cocos), which can relieve insomnia in a Drosophila model. Locomotor activity was measured in the Drosophila model to evaluate the sleep activity of Korean medicinal herbs traditionally used as sleep aids. The group treated with lotus seed extract showed less nocturnal activity. Treatment with 10 or 20 mg/mL of P. sibiricum significantly reduced nocturnal activity compared to the control group (P<0.05). The activity and sleep bouts of fruit flies were significantly decreased by a high-dose treatment (10 mg/mL) of lotus or P. sibiricum extracts at night. Caffeine-treated Drosophila showed increased nocturnal activity and decreased total sleep time (P<0.05). Flies receiving the 10 mg-doses of lotus seed or P. sibiricum extract showed significantly different nocturnal locomotor activity and total sleep time compared to caffeine-treated Drosophila. Lotus seed and P. sibiricum extracts are attractive and valuable sleep-potentiating nutraceuticals. PMID- 29333382 TI - Antioxidant and Quinone Reductase Activity of Soyasaponins in Hepa1c1c7 Mouse Hepatocarcinoma Cells. AB - Saponins have been reported to possess several health beneficial activities including hypocholesterolemic, immune-stimulatory, and anticarcinogenic. The objectives of this study were to determine if soysaponins are radical scavengers and inducers of quinone reductase (QR) activity in Hepa1c1c7 murine hepatoma cell line. The antioxidant capacity of soyasaponin was evaluated using the 1,1' diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzthiazoline-6 sulfonic acid) (ABTS) radical scavenging methods. Soyasaponin showed 75.7% radical scavenging activity in the DPPH assay and 81.4% in the ABTS method at 100 MUg/mL concentration. Cellular proliferation was determined using the methylthiazolyldiphenyl-tetrazolium bromide colorimetric assay. Soyasaponin inhibited cell growth in a dose-dependent (0.1~100 MUg/mL) manner, and growth inhibition was 30% and 39% at 100 MUg/mL of saponin after 24 h and 48 h incubation, respectively. Soyasaponin showed QR induction in a dose-dependent manner. Ten, 50, and 100 MUg/mL of soyasaponin resulted in a 1.6-, 2.2-, and 2.9 fold induction of QR, respectively. These results provide a basis for the potential of soysaponin as a chemopreventive agent. PMID- 29333383 TI - Inhibitory Effects of Butein on Adipogenesis through Upregulation of the Nrf2/HO 1 Pathway in 3T3-L1 Adipocytes. AB - Butein is reported to have many biological effects, including anti-fibrogenic, anti-cancer, and anti-inflammatory activities. This study investigated the effects of butein on adipocyte differentiation and the Nrf2/heme oxygenase-1 (HO 1) pathway's involvement in its anti adipogenic mechanism. Butein treatment reduced protein expression of key adipogenic transcription factors such as CCAAT enhancer-binding protein alpha (C/EBPalpha) and peroxisome proliferator-activated receptor gamma (PPARgamma). At a concentration of 5, 10, and 25 MUM butein, PPARgamma was decreased by 78.8, 68.3, and 31.4% and C/EBPalpha by 87.3, 71.7, and 42.1%, respectively. Butein also increased Nrf2 and HO-1 protein expression in a dose-dependent manner. Treatment with zinc protoporphyrin, a specific HO-1 inhibitor, abolished the inhibitory effects of butein on adipogenic transcription factor protein expression. Therefore, butein inhibits adipogenesis, at least partially, through upregulation of the Nrf-2/HO-1 signaling pathway in 3T3-L1 adipocytes. PMID- 29333384 TI - Antioxidant and Cytoprotective Activities of Enzymatic Extracts from Rhizoid of Laminaria japonica. AB - Rhizoid of Laminaria japonica was hydrolyzed with proteases and carbohydrases to obtain antioxidant materials. Oxygen radical absorbance capacity (ORAC) of the enzymatic extracts was evaluated and the Protamex extract (PE) exhibited the highest ORAC value. PE also potently scavenged 2,2-diphenyl-1-picrylhydrazyl radical, 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulphonic) acid cation radical, and hydrogen peroxide (H2O2) and had good reducing power. PE inhibited hydroxyl radical-induced DNA scission by measuring the conversion of supercoiled pBR322 plasmid DNA to the open circular form. The cytoprotective effect of PE against H2O2-induced hepatic cell damage was also investigated. PE showed a dose dependent cytoprotective effect in cultured hepatocytes by inhibiting intracellular reactive oxygen species scavenging activity. In addition, PE up regulated the expression of heme oxygenase-1, which is a cytoprotective enzyme, by activating translocation of nuclear factor-erythroid 2-related factor 2. Taken together, the enzymatic extract of rhizoid of L. japonica, particularly PE, may be useful for antioxidant additives. PMID- 29333385 TI - Kaempferol Inhibits Angiogenesis by Suppressing HIF-1alpha and VEGFR2 Activation via ERK/p38 MAPK and PI3K/Akt/mTOR Signaling Pathways in Endothelial Cells. AB - Kaempferol has been shown to inhibit vascular formation in endothelial cells. However, the underlying mechanisms are not fully understood. In the present study, we evaluated whether kaempferol exerts antiangiogenic effects by targeting extracellular signal-regulated kinase (ERK)/p38 mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)/Akt/mechanistic target of rapamycin (mTOR) signaling pathways in endothelial cells. Endothelial cells were treated with various concentrations of kaempferol for 24 h. Cell viability was determined by the 3- (4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide assay; vascular formation was analyzed by tube formation, wound healing, and mouse aortic ring assays. Activation of hypoxia-inducible factor-1alpha (HIF-1alpha), vascular endothelial growth factor receptor 2 (VEGFR2), ERK/p38 MAPK, and PI3K/Akt/mTOR was analyzed by Western blotting. Kaempferol significantly inhibited cell migration and tube formation in endothelial cells, and suppressed microvessel sprouting in the mouse aortic ring assay. Moreover, kaempferol suppressed the activation of HIF-1alpha, VEGFR2, and other markers of ERK/p38 MAPK and PI3K/Akt/mTOR signaling pathways in endothelial cells. These results suggest that kaempferol inhibits angiogenesis by suppressing HIF-1alpha and VEGFR2 activation via ERK/p38 MAPK and PI3K/Akt/mTOR signaling in endothelial cells. PMID- 29333386 TI - Antioxidant and Anti-Adipogenic Activities of Trapa japonica Shell Extract Cultivated in Korea. AB - Trapa japonica shell contains phenolic compounds such as tannins. Studies regarding the antioxidant and anti-adipogenic effects of Trapa japonica shell cultivated in Korea are still unclear. Antioxidant and anti-adipogenic activities were measured by in vitro assays such as 2,2-diphenyl-1-picrylhydrazy (DPPH) radical scavenging activity, 2,2'-azinobis( 3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging activity, ferric reducing ability of plasma assay, reducing power, superoxide dismutase-like activity, and iron chelating ability in 3T3-L1 cells. We also measured the total phenol and flavonoids contents (TPC and TFC, respectively) in Trapa japonica shell extract. Our results show that TPC and TFC of Trapa japonica shell extract were 157.7+/-0.70 mg gallic acid equivalents/g and 25.0+/-1.95 mg quercetin equivalents/g, respectively. Trapa japonica shell extract showed strong antioxidant activities in a dose dependent manner in DPPH and ABTS radical scavenging activities and other methods. Especially, the whole antioxidant activity test of Trapa japonica shell extract exhibited higher levels than that of butylated hydroxytoluene as a positive control. Furthermore, Trapa japonica shell extract inhibited lipid accumulation and reactive oxygen species production during the differentiation of 3T3-L1 preadipocytes. Trapa japonica shell extract possessed a significant antioxidant and anti-adipogenic property, which suggests its potential as a natural functional food ingredient. PMID- 29333387 TI - Physicochemical and Antioxidant Properties of Honeys from the Sundarbans Mangrove Forest of Bangladesh. AB - This study evaluated the physicochemical, nutritional, antioxidant, and phenolic properties of ten honey samples from the Sundarbans mangrove forest, Bangladesh. The average pH, electrical conductivity, total dissolved solid, ash, moisture, hydroxymethyl furfural, titrable acidity, and absorbance were 4.3, 0.38 mS/cm, 187.5 ppm, 0.14%, 17.88%, 4.4 mg/kg, 37.7 meq/kg, and 483 mAU, respectively. In the honeys, the average contents of Ca, Cu, Fe, K, Mg, Mn, and Na were 95.5, 0.19, 6.4, 302, 39.9, 3.4, and 597 ppm, respectively, whereas Cd, Cr, Pb, and Ni were not found. The average contents of total sugar, protein, lipid, vitamin C, polyphenols, flavonoids, and anthocyanins in the honeys were 69.3%, 0.8%, 0.29%, 107.3 mg/kg, 757.2 mg gallic acid equivalent/kg, 43.1 mg chatechin equivalent/kg, and 5.4 mg/kg, respectively. The honeys had strong 1,1-diphenyl-2-picrylhydrazyl free radical scavenging activity, reducing power and total antioxidant capacity. High-performance liquid chromatography analysis of the honey fractions revealed the quantification of six polyphenols namely, (+)-catechin, (-)-epicatechin, p caumeric acid, syringic acid, trans-cinnamic acid, and vanillic acid at 194.98, 330.34, 74.64, 218.97, 49.55, and 118.84 mg/kg, respectively. Therefore, the honeys in the Sundarbans are of excellent quality and a prospective source of polyphenols, and antioxidants. PMID- 29333388 TI - Enhancement of Phenolic Production and Antioxidant Activity from Buckwheat Leaves by Subcritical Water Extraction. AB - To enhance the production of phenolic compounds with high antioxidant activity and reduce the level of phototoxic fagopyrin, buckwheat leaves were extracted with subcritical water (SW) at 100~220 degrees C for 10~50 min. The major phenolic compounds were quercetin, gallic acid, and protocatechuic acid. The cumulative amount of individual phenolic compounds increased with increasing extraction temperature from 100 degrees C to 180 degrees C and did not change significantly at 200 degrees C and 220 degrees C. The highest yield of individual phenolic compounds was 1,632.2 MUg/g dry sample at 180 degrees C, which was 4.7 fold higher than that (348.4 MUg/g dry sample) at 100 degrees C. Total phenolic content and total flavonoid content increased with increasing extraction temperature and decreased with increasing extraction time, and peaked at 41.1 mg gallic acid equivalents/g and 26.9 mg quercetin equivalents/g at 180 degrees C/10 min, respectively. 2,2-Diphenyl-1-picrylhydrazyl free radical scavenging activity and ferric reducing ability of plasma reached 46.4 mg ascorbic acid equivalents/g and 72.3 mmol Fe2+/100 g at 180 degrees C/10 min, respectively. The fagopyrin contents were reduced by 92.5~95.7%. Color values L* and b* decreased, and a* increased with increasing extraction temperature. SW extraction enhanced the yield of phenolic compounds with high antioxidant activity and reduced the fagopyrin content from buckwheat leaves. PMID- 29333389 TI - Influence of Cooking Methods on Bioactive Compound Content and Antioxidant Activity of Brussels Sprouts. AB - The effects of different cooking methods on total bioactive compound content were determined, and in vitro antioxidant activity in 80% ethanolic extracts of Brussels sprouts was evaluated by spectrophotometric methods. Compared to uncooked, steamed, and microwaved Brussels sprouts extracted with 80% ethanol contained higher amounts of total polyphenols. Uncooked Brussels sprouts contained the highest amounts of total flavonoids. Microwaved Brussels sprouts contained the highest amounts of total carotenoids (0.35 mg/g) and chlorophylls (3.01 mg/g), followed by steamed and uncooked samples. Uncooked fresh Brussels sprouts showed the highest antioxidant activity followed by microwaved and steamed sprouts. Antioxidant activity was measured with the 2,2-diphenyl-1 picrylhydrazyl, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid), and hydroxyl racial scavenging assays as well as the reducing power activity assay, and antioxidant activity was found to increase in a concentration-dependent manner. Based on these results, cooking or heat treatment may decrease antioxidant activities, although their effect on bioactive compound content remains controversial. PMID- 29333390 TI - Physicochemical and Consumer Acceptance of Tofu Supplemented with Licorice Powder. AB - To develop functionally and nutritionally improved tofu, the effects of partial (0.2~0.8%) replacement with licorice powder (LP) on the quality characteristics of tofu were investigated. The pH and turbidity values decreased upon addition of increasing amounts of LP (P<0.05). The yield of LP-supplemented tofu was higher than that of the control tofu, and it increased as the concentration of LP increased (P<0.05). Substituting 0.6% and above of LP significantly hardened the texture of tofu (P<0.05) while control and 0.2~0.4% samples were not significantly different among them (P> 0.05). Lightness significantly decreased with higher LP content in the formulation (P<0.05), as indicated by visual observation that the color of tofu became darker. Redness and yellowness significantly increased (P<0.05). 2,2-Diphenyl-1-picrylhydrazyl and 2,2'-azino bis-3-ethylbenzthiazoline-6-sulphonic acid radical scavenging activities significantly increased (P<0.05) with higher substitution of LP, and they were well correlated. Tofu incorporated with LP (0.2~0.8%) had a better shelf life which was approximately 4.32~26.64 h longer than the control tofu at the elevated temperature of 15 degrees C. Finally, consumer acceptance test revealed that supplementation of LP more than 0.4% had an adverse effect on general consumer acceptance. On the basis of the overall observations, tofu samples supplemented with 0.2% (w/w) LP were found to benefit from the functional properties of LP, without compromising consumer acceptance. PMID- 29333391 TI - Analysis of Antioxidant and Anti-Inflammatory Activities of Solvent Fractions from Rhynchosia nulubilis Cultivated with Ganoderma lucidum Mycelium. AB - In this study, the crude ethanol Rhynchosia nulubilis cultivated with Ganoderma lucidum mycelium (RNGM) extract was solvent fractionated with organic solvents such as n-hexane, chloroform, ethyl acetate, and water. The anticancer activities, anti-inflammatory activity total polyphenols, total flavonoids, isoflavones, and beta-glucan of the solvent fractions of RNGM were studied. The ethyl acetate fraction showed the highest 2,2-diphenyl-1-picrylhydrazyl scavenging activity of 76.60% at 800 MUg/mL. The ethyl acetate fraction also showed higher antioxidant activity in 2,2'-azino-bis(3-ethylbenzothiazoline-6 sulfonic acid) and ferric reducing ability of plasma assays compared to the other fractions. In addition, this study confirmed that the ethyl acetate fraction strongly inhibited nitric oxide production. The ethyl acetate fraction had the highest amount of total polyphenol and total flavonoid (65.33 mg gallic acid equivalent/g and 18.50 mg quercetin equivalent/g, respectively). The ethyl acetate fraction (13.02%) showed the highest amount of total beta-glucan, followed by the water (6.32%), chloroform (1.43%), and n-hexane fraction (0.85%). Therefore, it is suggested that the ethyl acetate fraction of Rhynchosia nulubilis cultivated with Ganoderma lucidum mycelium may be potential natural sources for nutritional and pharmaceutical applications. PMID- 29333392 TI - Enhancing Sensory Perception of Plant Based Nutraceutical Drinks by Combining Plants from Different Sources: A Preliminary Study of Tea and Ginger Blend. AB - Tea-ginger drink was selected for evaluation due to its nutraceutical potential. Panelists rated preference for drinks prepared from tea, ginger, and tea+ginger powder for colour, taste, and aroma. The obtained data were evaluated using analysis of variance, principal component analysis, and agglomerative hierarchical clustering. Also the colour preference scores were evaluated against instrumental colour measurements. The ginger drink had lower rating for colour preference and the tea drink had lower ratings for aroma and taste preference. However, the tea-ginger drink led to enhanced colour, aroma, and taste ratings. The colour preference was found to have highest correlation coefficient with the hue and chroma of the drinks [r(58)=-0.583, P<0.05 and r(58)=0.566, P<0.05]. This study suggests that a sensory quality deficiency in a particular plant based drink could be compensated for by blending the drink with another plant based drink. This approach could help improve the uptake of plant based nutraceutical drinks. PMID- 29333393 TI - Effect of Monascus-Fermented Soybean Extracts on Antioxidant and Skin Aging Related Enzymes Inhibitory Activities. AB - We investigated the in vitro inhibitory activity against skin aging-related enzymes and antioxidant activity of Monascus-fermented soybean extracts (MFSEs) obtained by using different solvents. The highest Trolox equivalent (TE) antioxidant capacity (3.13+/-0.06 mM TE/g) and oxygen radical absorbance capacity (2.79+/-0.09 mM TE/g) of MFSEs were evaluated for the methanol and 80% ethanol extracts, respectively. The antioxidant capacities increased with increasing concentration (0.5~50 mg/mL). In addition, the methanol and 80% ethanol extracts showed an effective inhibition against tyrosinase, hyaluronidase, and elastase compared with those of acetone and hot water extracts (P<0.05). Results indicate that the inhibitory activities against skin aging-related enzymes and antioxidant properties provide evidence for the nutricosmetic potentials of Monascus fermented soybeans. PMID- 29333394 TI - Evaluation of Anti-Wrinkle Effects of DuOligo, Composed of Lactulose and Galactooligosaccharides. AB - Currently, alternatives to prebiotics for skin treatment are receiving much interest. However, little is known about the efficacy of topically applied prebiotics in skin anti-aging. This study was conducted to observe the anti-aging effects of DuOligo, which is composed of lactulose and galactooligosaccharides (GOS). We investigated wrinkle-related parameters by quantitative and qualitative skin evaluation in healthy women who consumed DuOligo for 8 weeks. The double blind, randomized, and placebo-controlled study included subjects who were divided into two groups (Placebo: dextrin 4.5 g/d, n=14, 51.50 y vs. DuOligo: DuOligo 4.5 g/d, n=14, 52.65 y). The DuOligo group showed a reduction in mean wrinkle length and depth measured via quantitative skin evaluation after 8 weeks, whereas the Placebo group showed slight increases in these parameters (P<0.001). The wrinkle severity rating scale in the DuOligo group was decreased after 8 weeks, but it increased in the Placebo group (Placebo group: 0.14 vs. DuOligo group: -0.86, P<0.001). The global aesthetic improvement scale for the DuOligo group was significantly higher than that for the Placebo group at week 8 (P<0.001). In conclusion, our findings suggest that oral consumption of DuOligo is beneficial to the skin, and present the possibility of new nutritional strategies for wrinkle care. PMID- 29333395 TI - IL-1B-31 and IL-1Ra polymorphisms associated with increased host susceptibility to immune thrompocytopenia. PMID- 29333396 TI - Unravelling the genomic landscape of leukemia using NGS techniques: the challenge remains. PMID- 29333397 TI - Pseudo-Chediak-Higashi inclusions in a case of acute lymphoblastic leukemia. PMID- 29333398 TI - Myelodysplastic syndrome with occult diffuse large B-cell lymphoma. PMID- 29333399 TI - Sinusoidal infiltration of hepatosplenic lymphoma in liver and bone marrow. PMID- 29333400 TI - Brentuximab vedotin: clinical updates and practical guidance. AB - Brentuximab vedotin (BV), a potent antibody-drug conjugate, targets the CD30 antigen. Owing to the remarkable efficacy shown in CD30-positive lymphomas, such as Hodgkin's lymphoma and systemic anaplastic large-cell lymphoma, BV was granted accelerated approval in 2011 by the US Food and Drug Administration. Thereafter, many large-scale trials in various situations have been performed, which led to extensions of the original indication. The aim of this review was to describe the latest updates on clinical trials of BV and the in-practice guidance for the use of BV. PMID- 29333401 TI - Management of immune thrombocytopenia: Korean experts recommendation in 2017. AB - Management options for patients with immune thrombocytopenia (ITP) have evolved substantially over the past decades. The American Society of Hematology published a treatment guideline for clinicians referring to the management of ITP in 2011. This evidence-based practice guideline for ITP enables the appropriate treatment of a larger proportion of patients and the maintenance of normal platelet counts. Korean authority operates a unified mandatory national health insurance system. Even though we have a uniform standard guideline enforced by insurance reimbursement, there are several unsolved issues in real practice in ITP treatment. To optimize the management of Korean ITP patients, the Korean Society of Hematology Aplastic Anemia Working Party (KSHAAWP) reviewed the consensus and the Korean data on the clinical practices of ITP therapy. Here, we report a Korean expert recommendation guide for the management of ITP. PMID- 29333402 TI - Interleukin-1B (IL-1B-31 and IL-1B-511) and interleukin-1 receptor antagonist (IL 1Ra) gene polymorphisms in primary immune thrombocytopenia. AB - Background: Immune thrombocytopenia (ITP) is an immune-mediated disease caused by autoantibodies against platelets membrane glycoproteins GPIIb/IIIa and GPIb/IX. The etiology of ITP remains unclear. This study evaluated the association of polymorphisms in interleukin (IL)-1B-31, IL-1B-511, and IL-1Ra with ITP. Methods: Genotyping of IL-1B-31, IL-1B-511, and IL-1Ra was performed in 118 ITP patients and 100 controls by polymerase chain reaction restriction fragment length polymorphism and detection of variable number tandem repeats. Results: Genotype differences in IL-1B-31 and IL-1Ra were significantly associated with ITP. Patients showed a higher frequency of the IL-1B-31 variant allele (T) and a 1.52 fold greater risk of susceptibility to ITP (odds ratio [OR]=1.52, 95% confidence interval [CI]=1.04-2.22, P=0.034). The frequencies of both homozygous and heterozygous variant genotypes of IL-1B-31 were higher (OR=2.33, 95% CI=1.069 5.09, P=0.033 and OR=2.044, 95% CI=1.068-39, P=0.034) among patients and were significantly associated with ITP susceptibility. Both homozygous and heterozygous variant genotypes of IL-1Ra were also more frequent (OR=4.48, 95% CI=1.17-17.05, P=0.0230 and OR=1.80, 95% CI=1.03-3.14, P=0.0494) among patients and were associated with ITP risk. IL-1B-31 and IL-1Ra also showed significant association with severe ITP. However, IL-1B-511 was not associated with ITP. Conclusion: IL-1B-31 and IL-1Ra polymorphisms may significantly impact ITP risk, and they could be associated with disease severity, which may contribute to the pathogenesis of ITP. PMID- 29333403 TI - Treatment outcomes of dose-attenuated CHOP chemotherapy in elderly patients with peripheral T cell lymphoma. AB - Background: While cyclophosphamide, doxorubicin, vincristine, and prednisolone (CHOP) is the most commonly used chemotherapeutic regimen for patients with peripheral T-cell lymphomas (PTCLs), elderly patients are more vulnerable to associated toxicities. We evaluated the efficacy and safety of dose-attenuated CHOP in elderly patients with PTCL. Methods: Patients with PTCL aged >70 years or 65-70-years with comorbidities were treated with dose-attenuated CHOP (cyclophosphamide: 562.5 mg/m2, doxorubicin: 37.5 mg/m2, vincristine: 1.4 mg/m2, and prednisolone: 100 mg for five days; 25% reduced dose of cyclophosphamide and doxorubicin vs. full-dose CHOP) as first-line therapy were included. Results: Forty-four patients (median age, 74 yr) were analyzed. The majority (N=42, 95.5%) had advanced stage disease and 36 (81.8%) were classified as high/high intermediate risk by the international prognostic index. The overall response rate was 61.4%, and 21 patients achieved complete response (47.7%). With median follow-up period of 28.8 months, the estimated two-year progression-free and overall survival rates were 36.7% and 46.6%, respectively. Grade 3/4 neutropenia and thrombocytopenia occurred in 26.9% and 7.4% of 204 total cycles, which affected 76.7% and 25.6% of the patients, respectively. Nineteen patients (44.2%) experienced febrile neutropenia, and six died due to treatment-related toxicities. High lactate dehydrogenase levels and an involvement of >1 extranodal sites were prognostic indicators of poor survival. Conclusion: Dose-attenuated CHOP does not compromise treatment efficacy but retains significant toxicity. Our results suggest that some patients can be effectively treated with dose attenuated CHOP, however a novel therapy for elderly patients with PTCL is required. PMID- 29333404 TI - Relevance of prognostic index with beta2-microglobulin for patients with diffuse large B-cell lymphoma in the rituximab era. AB - Background: The International Prognostic Index (IPI) has been a useful tool for predicting the prognosis of aggressive non-Hodgkin lymphoma in the last 20 years. Herein, we aimed to develop a new prognostic model for diffuse large B-cell lymphoma (DLBCL) in the rituximab era. Methods: Between March 2004 and June 2012, patients with DLBCL treated with rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisolone chemotherapy regimen were identified in the database of the Asan Medical Center (AMC) Lymphoma Registry. The primary and secondary endpoints were a new prognostic index for DLBCL and validation of the National Comprehensive Cancer Network-International Prognostic Index in our cohort, respectively. Results: The AMC cohort comprised 621 patients. The median follow-up duration was 43.3 months (range, 6.2-122.5 mo). Univariate analysis revealed that age (<=60 vs. >60 yr), lactate dehydrogenase (LDH; within normal vs. increased), Eastern Cooperative Oncology Group performance status (ECOG PS; 0 or 1 vs. >=2), advanced stage (Ann Arbor stage I/II vs. III/IV), extra-nodal involvement (<=1 vs. >1), B symptoms (no vs. yes), and beta-2 microglobulin (beta2MG, <=2.5 vs. >2.5) can be used to predict overall survival (OS). In multivariate analysis, only age, LDH, ECOG performance status, and beta2MG were significantly associated with OS, and we developed a new prognostic model with these 4 factors. The new prognostic model showed better discriminative power compared with the classic IPI. Conclusion: Our new prognostic index model for DLBCL in the rituximab era has good discriminative power and is convenient to use. PMID- 29333405 TI - Primary central nervous system lymphoma: a new prognostic model for patients with diffuse large B-cell histology. AB - Background: Age and performance status are important prognostic factors in primary central nervous system (CNS) lymphoma. Although several prognostic models have been proposed, there is no consensus on the optimal model for patients with diffuse large B-cell histology. Methods: Seventy-seven patients with primary CNS diffuse large B-cell lymphoma were retrospectively analyzed to determine factors affecting survival. Three Western models were applied to our eligible patients; we devised a novel model based on our findings. Results: The median patient age was 59 years (range, 29-77); the median event-free and overall survival (OS) durations were 35.9 and 12.6 months, respectively. Nottingham/Barcelona and Memorial Sloan Kettering Cancer Center models were applicable to our cohorts. Multivariate analysis showed that advanced age, multifocal lesions, and high cerebrospinal fluid (CSF) protein concentrations were correlated significantly. A novel model for predicting prognosis was then developed based on these variables. Each variable was assigned 1 point; patients with a total score of 0, 1, 2, and 3 were categorized into the low- (N=17), moderate- (N=26), high- (N=14), and very high-risk groups (N=4), respectively. Sixty-one patients were eligible considering our model; the median OS was 58.2, 34.8, 9.0, and 1.8 months in the low-, moderate-, high-, and very high-risk groups, respectively (P<0.01). Conclusion: Advanced age, multifocal lesions, and high CSF protein concentration were adversely related with prognosis. Our model can be helpful in pre-treatment risk stratification for patients with primary CNS lymphoma with diffuse large B cell histology. PMID- 29333406 TI - STAT3 expression is associated with poor survival in non-elderly adult patients with newly diagnosed multiple myeloma. AB - Background: Signal transducer and activator of transcription 3 (STAT3) is not only a key signaling molecule in the regulation of growth but is also involved in malignant transformation. We investigated the prognostic significance of STAT3 expression in 94 non-elderly adult patients (aged 38 to 65 yr) with newly diagnosed multiple myeloma (MM). Methods: Tumor cell-specific phosphotyrosine STAT3 (PY-STAT3) expression at the time of diagnosis was evaluated with dual immunohistochemical (IHC) staining for PY-STAT3 and CD138. Results: PY-STAT3 positivity was detected in 10 patients (10.6%), including three who showed strong expression. PY-STAT3-positive patients had higher serum C-reactive protein and calcium levels at diagnosis than did PY-STAT3-negative patients. PY-STAT3 positivity had predictive value for poor progression-free survival (PFS; P=0.001) and overall survival (OS; P=0.003). Among the 60 patients who received frontline autologous stem cell transplantation, PY-STAT3-positive patients had poorer PFS than did PY-STAT3-negative patients (4.2 vs. 19.2 mo, respectively; P=0.013). Multivariate analysis identified PY-STAT3 expression as an independent prognostic factor for PFS (relative risk [RR]=2.706, P=0.014) and OS (RR=3.091, P=0.044). Conclusion: These data show that PY-STAT3 positivity, as determined using dual IHC, is a marker of poor prognosis in non-elderly adult patients with MM. PMID- 29333407 TI - The limited role of serum galactomannan assay in screening for invasive pulmonary aspergillosis in allogeneic stem cell transplantation recipients on micafungin prophylaxis: a retrospective study. AB - Background: We evaluated the outcomes of serum galactomannan (GM) assay for the screening of invasive pulmonary aspergillosis (IPA) in allogeneic hematopoietic stem cell transplantation (alloHSCT) recipients while on primary antifungal prophylaxis (PAP). Methods: This study included patients with hematologic disorders who underwent alloHSCT from January 2013 to November 2015. Patients received routine PAP with fluconazole before 2014 and micafungin after 2014; serum GM tests were performed and retrospectively analyzed. The sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of serum GM tests for detection of probable/proven IPA were evaluated. The serial change of serum GM levels was illustrated on a time series plot. Results: A total of 136 alloHSCT recipients at Seoul National University Hospital were included in the study. Fluconazole was administered in 72 patients for PAP, while micafungin was administered in the remaining 64 patients. The overall sensitivity, specificity, and NPV of serum GM assays were 95.8% (95% confidence interval [CI] 78.9-99.9%), 93.8% (95% CI 91.7-95.5%), and 99.8% (95% CI 99.1-100.0%), respectively. However, the PPV of GM tests was relatively low at 35.4% (95% CI 23.9-48.2%). The serial change in serum GM levels differed according to the antifungal agents used. With effective PAP using micafungin, serial serum GM levels showed zero order kinetics during the neutropenic period. Conclusion: Although the serum GM assay is a sensitive and specific test for detecting IPA in alloHSCT recipients, its role for routine surveillance in an era of effective PAP with micafungin is limited. PMID- 29333408 TI - Is long term storage of cryopreserved stem cells for hematopoietic stem cell transplantation a worthwhile exercise in developing countries? AB - Background: Stem cell units (SCUs) that are cryopreserved prior to both autologous and allogeneic hematopoietic stem cell transplants (for donor lymphocyte infusion) remain unused or partially used several times, and become an increased burden to blood banks/SCU repositories. Because of the scarcity of data regarding the duration for which the storage is useful, there is no general consensus regarding disposal of SCUs. Methods: We conducted a retrospective audit of SCU utilization in 435 patients who planned to undergo either autologous stem cell transplantation (auto-SCT) (N=239) or allogeneic stem cell transplantation (allo-SCT) (N=196) at a tertiary cancer care center between November 2007 to January 2015. Results: Our cohort consisted of 1,728 SCUs stored for conducting auto-SCT and 729 SCUs stored for conducting donor lymphocyte infusions (DLIs) after allo-SCT. Stem cells were not infused in 12.5% of patients who had planned to undergo auto-SCT, and 80% of patients who underwent allo-SCT never received DLI. Forty-one percent of SCUs intended for use in auto-SCT remained unutilized, with a second auto-SCT being performed only in 4 patients. Ninety-four percent of SCUs intended for carrying out DLIs remained unused, with only minimal usage observed one year after undergoing allo-SCT. Conclusion: The duration of storage of unused SCUs needs to be debated upon, so that a consensus can be reached regarding the ethical disposal of SCU. PMID- 29333409 TI - Human parvovirus B19 and parvovirus 4 among Iranian patients with hemophilia. AB - Background: Human parvovirus B19 (B19V) is one of the smallest DNA viruses and shows great resistance to most disinfectants. Therefore, it is one of the common contaminant pathogens present in blood and plasma products. Parvovirus 4 (PARV4) is a newly identified parvovirus, which is also prevalent in parenteral transmission. In this study, we aimed to evaluate the prevalence of B19V and PARV4 DNA among patients with hemophilia in Birjand County in eastern Iran. Methods: This was a cross-sectional epidemiological study comprising nearly all people with hemophilia in this region. Whole blood samples were taken after patient registration and sent for plasma isolation. After nucleic acid extraction, B19V was detected with real-time polymerase chain reaction, PARV4 DNA was then detected using sensitive semi-nested PCR. Results: In total, there were 86 patients with hemophilia, with mean age 28.5+/-1.5 years. Of these, 90.7% were men and 9.3% women; 84.9% had hemophilia A and 7.0% had hemophilia B. We found 11 patients (12.8%) were positive for B19V DNA and 8 were positive (9.3%) for PARV4 DNA. The prevalence of B19V was higher in middle-aged groups rather than younger people, whereas PARV4 infection was more common in younger patients (P <0.05). Conclusion: There was a high prevalence of B19V and PARV4 infection in this high risk group of patients with hemophilia. Due to the clinical significance of the B19 virus, imposing more precautionary measures for serum and blood products is recommended. PMID- 29333410 TI - Transplantation of human umbilical cord blood CD34+ cells into the liver of newborn NOD/SCID/IL-2Rgamma null (NSG) mice after busulfan conditioning. PMID- 29333411 TI - Successful treatment of a patient with myelodysplastic syndrome accompanied by pyoderma gangrenosum and Behcet's disease using allogeneic stem cell transplantation. PMID- 29333412 TI - Post-liver transplant myeloid maturation arrest. PMID- 29333413 TI - A case of primary plasma cell leukemia exhibiting hemophagocytic plasma cells relapsed with multiple cutaneous plasmacytoma. PMID- 29333414 TI - Differential diagnosis of primary cutaneous CD4+ small/medium T-cell lymphoproliferative lesions: A report of three cases. PMID- 29333415 TI - A young man with acute respiratory distress syndrome: eosinophilia is not always "benign". PMID- 29333416 TI - Does the c.-273T>C variant in the upstream region of the HBB gene cause a thalassemia phenotype? PMID- 29333417 TI - Comparison of the acute erythropoietic capacities of erythropoietin and U-74389G in terms of hemoglobin levels. PMID- 29333418 TI - Low-dose prednisolone in patients with paroxysmal nocturnal hemoglobinuria and inadequate response to eculizumab. PMID- 29333419 TI - Evaluation of a polyurethane foam dressing impregnated with 3% povidone-iodine (Betafoam) in a rat wound model. AB - Purpose: The purpose of this study was to evaluate the efficacy of Betafoam in terms of wound healing and safety. Methods: Fifty-four male adult Sprague-Dawley rats (weight, 200-250 g) were used in the study. Full-thickness skin defects were created on the back of each rats. The rats were assigned to 6 groups according to the type of wound dressing used (n = 9 for each group): Betafoam, Allevyn-Ag, Mepilex-Ag, Medifoam silver, Polymem-Ag, and gauze. The wound size, histological findings, and amount of DNA on the changed dressings for each group were analyzed and compared. Results: All groups showed an effective decrease in wound size. However, the differences between Betafoam and the other dressings were statistically significant on day 14 (P < 0.05). The number of newly generated blood vessels in the Betafoam group was significantly higher than in the gauze, Allevyn-Ag, and Medifoam silver groups (P < 0.001). In the Betafoam group, the proportion of collagen deposition was highest and showed a significantly superior arrangement of collagen fibers compared with the gauze, Allevyn-Ag, Mepilex-Ag, and Medifoam silver groups. The total content of the remaining DNA counts of the exchanged dressings were significantly lower in the Betafoam group than the others. Conclusion: Betafoam is effective in wound healing and provides the best performance amongst the various types of dressing materials in terms of re epithelialization, angiogenesis, collagen deposition, and tissue invasion. PMID- 29333420 TI - Technique for orthotopic liver transplantation in cynomolgus monkeys (Macaca fascicularis). AB - Purpose: Recent studies investigating new strategies to modulate the immune system have utilized animal models of liver transplantation (LT). However, the anhepatic phase (AHP) remains a crucial problem in LT. The aim of the present study is to introduce a technique for successful orthotopic LT in cynomolgus monkeys using an early-reperfusion strategy. Methods: Orthotopicallo-LT was performed with seven donor/recipient pairs of cynomolgus monkeys. Results: In 2 recipients, liver allografts were perfused after suprahepatic inferior vena cava (SHIVC), portal vein (PV), and infrahepatic inferior vena cava (IHIVC) anastomosis. To reduce the time of AHP in five recipients, liver allografts ware perfused after SHIVC and PV anastomosis while the IHIVC was not anastomosed. In the latter strategy, the AHP was reduced from 46 minutes to 31 minutes and a 24 hour survival rate of 80% was achieved. Conclusion: Our results indicate that an early-reperfusion strategy can be successfully used to establish a LT model in cynomolgus monkeys with a consistently high rate of animal survival. PMID- 29333421 TI - Brain metastasis from colorectal cancer: a single center experience. AB - Purpose: The detection rate of brain metastasis (BM) from colorectal cancer (CRC) is increasing. This study was designed to analyze the clinical features of BM and prognosis according to the therapeutic modalities. Methods: A total of 19 cases were collected in this study between November 2008 and December 2015. We reviewed the patients' demographic data and the clinical features of BM retrospectively and investigated their prognostic significance. Results: Nineteen patients included 8 male and 11 female patients. The median age at diagnosis of BM was 62.4 years (range, 32-83 years). The median interval between diagnosis of CRC and BM was 39 months (range, 0-98 months). Eighteen patients (94.7%) had extracranial metastasis at the diagnosis of BM. Lung was the most common site of extracranial metastasis in 14 patients (73.7%). Synchronous BMs were found at the diagnosis of primary CRC in 2 patients (10.5%). The location of primary CRC was the colon in 6 patients (31.6%) and the rectum in 13 patients (68.4%). At the diagnosis of BM, 10 patients (52.6%) had a solitary BM. The common neurologic symptoms were headache in 8 cases (42.1%) and ataxia in 6 cases (31.6%). The median survival after the diagnosis of BM was 3 months (range, 1-10 months). The patients who underwent surgery plus stereotactic radiosurgery (SRS) had an improved survival (range, 3-10 months) than the other patients (range, 1-6 months) (P = 0.016). Conclusion: In patients with BM from CRC, surgical resection plus SRS might improve survival. PMID- 29333422 TI - Epigenetic inactivation of RUNX3 in colorectal cancer. AB - Purpose: Emerging evidence indicates that runt-related transcription factor 3 (RUNX3) is an important tumor suppressor gene in several cancer types, including colorectal cancer (CRC). However, the clinical significance of RUNX3 inactivation in CRC remains unclear. The aim of this study was to examine the correlation between clinicopathologic factors and RUNX3 hypermethylation/expression in CRC. Methods: Sixty-two CRC patients who were treated at the Soonchunhyang University College of Medicine were recruited in this study. The hypermethylation of CpG islands in the RUNX3 promoter and the expression of RUNX3 mRNA were identified by methylation-specific polymerase chain reaction (PCR) and reverse transcriptase PCR, respectively. The expression of RUNX3 was determined by immunohistochemical staining. Results: Of the 62 CRC tissue samples, 20 (32.3%) presented hypermethylated RUNX3 promoters. Aberrant RUNX3 hypermethylation was found to be associated with vascular (P = 0.006) and lymphatic (P = 0.002) invasion. Hypermethylation of RUNX3 was associated with poor survival outcomes (P = 0.038). However, expression of RUNX3 was not a prognostic factor (P = 0.363). Conclusion: Hypermethylation of RUNX3 may be a predictor of a poor prognosis in CRC. PMID- 29333423 TI - Long-term outcomes after Natural Orifice Specimen Extraction versus conventional laparoscopy-assisted surgery for rectal cancer: a matched case-control study. AB - Purpose: The aim of this study was to compare the long-term outcomes of total laparoscopic surgery with Natural Orifice Specimen Extraction (NOSE) with those for conventional laparoscopy (CL)-assisted surgery for treating rectal cancers. Methods: We reviewed the prospectively collected records of 844 patients (163 NOSE and 681 CL) who underwent curative surgery for mid- or upper rectal cancers from January 2006 to November 2012. We applied propensity score analyses and compared oncological outcomes for the NOSE and CL groups in a 1:1 matched cohort. Results: After propensity score matching, each group included 138 patients; the NOSE and CL groups did not differ significantly in terms of baseline clinical characteristics. The median follow-up was 57.7 months (interquartile range, 42.4 82.5 months). The combined 5-year local recurrence rate for all tumor stages was 4.1% (95% confidence interval [CI], 0.9%-7.4%) in the NOSE group and 3.0% (95% CI, 0%-6.3%) in the CL group (P = 0.355). The combined 5-year disease-free survival rates for all stages were 89.3% (95% CI, 84.3%-94.3%) in the NOSE group and 87.3% (95% CI, 81.8%-92.9%) in the CL group (P = 0.639). The postoperative mean fecal incontinence scores at 6, 12, and 24 months were similar between the 2 groups. Conclusion: In our experience, NOSE for mid- and upper rectal cancer had acceptable long-term oncologic outcomes comparable to those of conventional minimal invasive surgery and seems to be a safe alternative to reduce access trauma. PMID- 29333424 TI - Anatomical distribution and detection rate of colorectal neoplasms according to age in the colonoscopic screening of a Korean population. AB - Purpose: Because data as a basis for the determination of proper age and modality for screening of colorectal neoplasms is lacking, we evaluated detection rates and anatomical distribution of colorectal neoplasms according to age in healthy individuals who underwent total colonoscopy for health checkup. Methods: A total of 16,100 cases that had received the colonoscopic examination from January to December in 2014 were analyzed. The total number of individuals who received total colonoscopy were divided by the number of individuals harboring colorectal adenoma to calculate the detection rate of colorectal adenoma. Individuals <=50 years old were classified as young-age group and aged >50 were old-age group. Differences in anatomical locations of colorectal neoplasms were analyzed in the 2 age groups by chi-square test. Risk factors for colorectal adenoma in each age group were analyzed using univariate and multivariate logistic regression analyses. Results: Detection rates of colorectal adenoma were 13.7% in all cases and 12.8% for those in their 40's. The main anatomical location of colorectal adenoma was proximal colon in both age groups (P < 0.001). Hyperplastic polyp was mainly distributed to the distal colon in both age groups (P < 0.001). Distal colon was the major site for colorectal cancer in the old-age group (P = 0.001). Proximal location of neoplasms was a risk factor for colorectal adenoma in both age groups with multivariate analysis. Conclusion: These data could be the bases for earlier initiation of screening for colorectal neoplasms with total colonoscopy to detect clinically significant colorectal polyps. PMID- 29333425 TI - Outcomes of selective surgery in patients with suspected small bowel injury from blunt trauma. AB - Purpose: The role of initial conservative therapy with selective surgery for patients with suspected blunt bowel injury by radiologic evaluation is less clear. The aim of the study is to assess the outcomes of patients who received initial conservative therapy with selective delayed surgery, compared to emergency surgery. Methods: During this 8-year study, a total of 77 patients who were hemodynamically stable were enrolled, in which computed tomography verified suspected bowel injury from blunt trauma (mesenteric hematoma, mesenteric fat infiltration, bowel wall thickening, and free fluid without solid organ injury) was managed with either initial conservative therapy with selective delayed surgery (group A; n = 42) or emergency surgery (group B; n = 35). The clinical outcomes including the rate of negative or nontherapeutic exploration and postoperative complications, between the groups were compared. Results: The enrolled patients had a mean age of 41 years including 51 men and 26 women. No difference in the clinical characteristics was found between the groups. In group A, 18 patients underwent delayed surgery and 24 recovered without surgery. Among patients who underwent surgery, 3 (17%) underwent negative or nontherapeutic explorations. In group B, 13 (37%) underwent negative or nontherapeutic explorations. Postoperative complications occurred in 21 patients and there was no difference between the groups. Conclusion: Initial conservative therapy with selective delayed surgery did not increased severe postoperative complications and had a low rate of negative or nontherapeutic surgical explorations in hemodynamically stable patients with suspected blunt bowel injury. PMID- 29333427 TI - Surgery of multiple lymphangioma in small bowel: a rare case report of chronic gastrointestinal bleeding. AB - Small bowel lymphangioma is a rare benign tumor of the lymphatic system, characterized by the presence of dilated lymphatic spaces and significant gastrointestinal bleeding. Small bowel lymphangiomas are rare in adults and case reports are few. Lymphangiomas in the jejunum or ileum are extremely rare and account for less than 1% of all lymphangiomas. The case reported herein is of an older patient (70-year-old male) with melena and chronic anemia (hemoglobin count < 5 g/dL) who had small-sized multiple lymphangiomas in his small bowel (jejunum). Surgical resection was performed after failure of treatment by gastroenteroscopy. Final pathological analysis revealed lymphangioma with thrombus and hemorrhage. After surgery, he no longer had decreased hemoglobin count, nor symptoms of anemia and melena. Also, at the last follow-up visit, the patient's hemoglobin count patient was normal and he returned to normal daily functions. PMID- 29333426 TI - Are you prepared for pancreas bifidum? A case report. AB - Pancreas divisum-failure of fusion of the dorsal and ventral pancreatic ducts-is relatively well known as the most common congenital anomaly of the pancreatic duct, of with an incidence approximately 10% of all embryos. And there is a rare anomaly similar to pancreas divisum in which doubled ducts are formed. This condition is a rare developmental anomaly called pancreas bifidum or bifid pancreas or fish tail pancreas. This report describes a patient with pancreas bifidum who had 2 separated ducts within the pancreas from tail to neck but did not have a separated parenchyma. We hope that this report helps pancreatic surgeons to have knowledge of pancreas bifidum and helps them to be prepared for this anatomical variant. PMID- 29333428 TI - The Effect of Prucalopride on Small Bowel Transit Time in Hospitalized Patients Undergoing Capsule Endoscopy. AB - Background: The inpatient status is a well-known risk factor for incomplete video capsule endoscopy (VCE) examinations due to prolonged transit time. We aimed to evaluate the effect of prucalopride on small bowel transit time for hospitalized patients undergoing VCE. Methods: We included all hospitalized patients who underwent VCE at a tertiary academic center from October 2011 through September 2016. A single 2 mg dose of prucalopride was given exclusively for all patients who underwent VCE between March 2014 and December 2015. VCE studies were excluded if the capsule was retained or endoscopically placed, if other prokinetic agents were given, in cases with technical failure, or if patients had prior gastric or small bowel resection. Results: 442 VCE were identified, of which 68 were performed in hospitalized patients. 54 inpatients were included, of which 29 consecutive patients received prucalopride. The prucalopride group had a significantly shorter small bowel transit time compared to the control group (92 versus 275.5, p < 0.001). There was a trend for a higher completion rate in the prucalopride group (93.1% versus 76%, p = 0.12). Conclusions: Our results suggest that the administration of prucalopride prior to VCE is a simple and effective intervention to decrease small bowel transit time. PMID- 29333429 TI - Screening of Lipid Composition for Scalable Fabrication of Solvent-Free Lipid Microarrays. AB - Liquid microdroplet arrays on surfaces are a promising approach to the miniaturization of laboratory processes such as high-throughput screening. The fluid nature of these droplets poses unique challenges and opportunities in their fabrication and application, particularly for the scalable integration of multiple materials over large areas and immersion into cell culture solution. Here, we use pin spotting and nanointaglio printing to screen a library of lipids and their mixtures for their compatibility with these fabrication processes, as well as stability upon immersion into aqueous solution. More than 200 combinations of natural and synthetic oils composed of fatty acids, triglycerides, and hydrocarbons were tested for their pin-spotting and nanointaglio print quality and their ability to contain the fluorescent compound tetramethylrhodamine B isothiocyanate (TRITC) upon immersion in water. A combination of castor oil and hexanoic acid at the ratio of 1:1 (w/w) was found optimal for producing reproducible patterns that are stable upon immersion into water. This method is capable of large-scale nanomaterials integration. PMID- 29333432 TI - Cytomegalovirus-associated pulmonary exacerbation in patients with cystic fibrosis. AB - CMV is an unusual cause of pulmonary exacerbation in immunocompetent individuals with CF http://ow.ly/Rdds30hlnjV. PMID- 29333431 TI - Morphology Changes in Human Fungal Pathogens upon Interaction with the Host. AB - Morphological changes are a very common and effective strategy for pathogens to survive in the mammalian host. During interactions with their host, human pathogenic fungi undergo an array of morphological changes that are tightly associated with virulence. Candida albicans switches between yeast cells and hyphae during infection. Thermally dimorphic pathogens, such as Histoplasma capsulatum and Blastomyces species transform from hyphal growth to yeast cells in response to host stimuli. Coccidioides and Pneumocystis species produce spherules and cysts, respectively, which allow for the production of offspring in a protected environment. Finally, Cryptococcus species suppress hyphal growth and instead produce an array of yeast cells-from large polyploid titan cells to micro cells. While the morphology changes produced by human fungal pathogens are diverse, they all allow for the pathogens to evade, manipulate, and overcome host immune defenses to cause disease. In this review, we summarize the morphology changes in human fungal pathogens-focusing on morphological features, stimuli, and mechanisms of formation in the host. PMID- 29333433 TI - Vitamin D Receptor Gene Polymorphisms Influence T1D Susceptibility among Pakistanis. AB - Background: The vitamin D receptor (VDR) gene regulates insulin secretion from the pancreas and acts as a mediator of the immune response through vitamin D. Polymorphism in VDR causes alterations in the functioning of vitamin D, leading to type 1 diabetes (T1D) predisposition. The aim of the present study was to determine VDR gene polymorphism in association with T1D in Pakistanis. Methods: The association was evaluated by selecting rs2228570 (FokIota), rs7975232 (ApaIota), and rs731236 (TaqIota) polymorphic sites in 102 patients and 100 controls. Genotypes were identified by DNA sequencing and PCR-RFLP. Results: The allelic and genotypic frequencies of FokIota and ApaI were significantly associated with T1D (p < 0.001) development. At the FokIota site, tryptophan was replaced with arginine due to polymorphism. A novel SNP (GeneBank acc number KT280406) was identified through the sequencing of intron 8, 62 bp downstream from the ApaI polymorphic site, and significantly associated with T1D development. The TaqIota did not depict any association with T1D at the allelic or genotypic level (p > 0.05). CCGC, CCGG, CCTC, and CCTG haplotypes were significantly associated with disease development (p < 0.05). However, CTGG haplotype was protective towards T1D (p < 0.01). Conclusion: VDR polymorphisms were identified as susceptible regions for T1D development in the Pakistani population. PMID- 29333430 TI - Adaptive Immunity to Cryptococcus neoformans Infections. AB - The Cryptococcus neoformans/Cryptococcus gattii species complex is a group of fungal pathogens with different phenotypic and genotypic diversity that cause disease in immunocompromised patients as well as in healthy individuals. The immune response resulting from the interaction between Cryptococcus and the host immune system is a key determinant of the disease outcome. The species C. neoformans causes the majority of human infections, and therefore almost all immunological studies focused on C. neoformans infections. Thus, this review presents current understanding on the role of adaptive immunity during C. neoformans infections both in humans and in animal models of disease. PMID- 29333435 TI - Enhancement of Nucleoside Production in Hirsutella sinensis Based on Biosynthetic Pathway Analysis. AB - To enhance nucleoside production in Hirsutella sinensis, the biosynthetic pathways of purine and pyrimidine nucleosides were constructed and verified. The differential expression analysis showed that purine nucleoside phosphorylase, inosine monophosphate dehydrogenase, and guanosine monophosphate synthase genes involved in purine nucleotide biosynthesis were significantly upregulated 16.56 fold, 8-fold, and 5.43-fold, respectively. Moreover, dihydroorotate dehydrogenase, uridine nucleosidase, uridine/cytidine monophosphate kinase, and inosine triphosphate pyrophosphatase genes participating in pyrimidine nucleoside biosynthesis were upregulated 4.53-fold, 10.63-fold, 4.26-fold, and 5.98-fold, respectively. To enhance the nucleoside production, precursors for synthesis of nucleosides were added based on the analysis of biosynthetic pathways. Uridine and cytidine contents, respectively, reached 5.04 mg/g and 3.54 mg/g when adding 2 mg/mL of ribose, resulting in an increase of 28.6% and 296% compared with the control, respectively. Meanwhile, uridine and cytidine contents, respectively, reached 10.83 mg/g 2.12 mg/g when adding 0.3 mg/mL of uracil, leading to an increase of 176.3% and 137.1%, respectively. This report indicated that fermentation regulation was an effective way to enhance the nucleoside production in H. sinensis based on biosynthetic pathway analysis. PMID- 29333437 TI - A Key Major Guideline for Engineering Bioactive Multicomponent Nanofunctionalization for Biomedicine and Other Applications: Fundamental Models Confirmed by Both Direct and Indirect Evidence. AB - This paper deals with the engineering multicomponent nanofunctionalization process considering fundamental physicochemical features of nanostructures such as surface energy, chemical bonds, and electrostatic interactions. It is pursued by modeling the surface nanopatterning and evaluating the proposed technique and the models. To this end, the effects of surface modifications of nanoclay on surface interactions, orientations, and final features of TiO2/Mt nanocolloidal textiles functionalization have been investigated. Various properties of cross linkable polysiloxanes (XPs) treated samples as well as untreated samples with XPs have been compared to one another. The complete series of samples have been examined in terms of bioactivity and some physical properties, given to provide indirect evidence on the surface nanopatterning. The results disclosed a key role of the selected factors on the final features of treated surfaces. The effects have been thoroughly explained and modeled according to the fundamental physicochemical features. The developed models and associated hypotheses interestingly demonstrated a full agreement with all measured properties and were appreciably confirmed by FESEM evidence (direct evidence). Accordingly, a guideline has been developed to facilitate engineering and optimizing the pre-, main, and post-multicomponent nanofunctionalization procedures in terms of fundamental features of nanostructures and substrates for biomedical applications and other approaches. PMID- 29333436 TI - Behavioural and Autonomic Regulation of Response to Sensory Stimuli among Children: A Systematic Review of Relationship and Methodology. AB - Background: Previous studies have explored the correlates of behavioural and autonomic regulation of response to sensory stimuli in children; however, a comprehensive review of such relationship is lacking. This systematic review was performed to critically appraise the current evidence on such relationship and describe the methods used in these studies. Methods: Online databases were systematically searched for peer-reviewed, full-text articles in the English language between 1999 and 2016, initially screened by title and abstract, and appraised and synthesized by two independent review authors. Results: Fourteen Level III-3 cross-sectional studies were included for systematic review, among which six studies explored the relationship between behaviour and physiological regulation of responses to sensory stimuli. Three studies reported significant positive weak correlations among ASD children; however, no correlations were found in typically developing children. Methodological differences related to individual differences among participants, measures used, and varied laboratory experimental setting were noted. Conclusion: This review suggests inconclusive evidence supporting the relationship between behavioural and physiological regulation of responses to sensory stimuli among children. Methodological differences may likely have confounded the results of the current evidence. We present methodological recommendations to address this matter for future researches. This trial is registered with PROSPERO registration number CRD42016043887. PMID- 29333434 TI - CONSERVED AND EXAPTED FUNCTIONS OF NUCLEAR RECEPTORS IN ANIMAL DEVELOPMENT. AB - The nuclear receptor gene family includes 18 members that are broadly conserved among multiple disparate animal phyla, indicating that they trace their evolutionary origins to the time at which animal life arose. Typical nuclear receptors contain two major domains: a DNA-binding domain and a C-terminal domain that may bind a lipophilic hormone. Many of these nuclear receptors play varied roles in animal development, including coordination of life cycle events and cellular differentiation. The well-studied genetic model systems of Drosophila, C. elegans, and mouse permit an evaluation of the extent to which nuclear receptor function in development is conserved or exapted (repurposed) over animal evolution. While there are some specific examples of conserved functions and pathways, there are many clear examples of exaptation. Overall, the evolutionary theme of exaptation appears to be favored over strict functional conservation. Despite strong conservation of DNA-binding domain sequences and activity, the nuclear receptors prove to be highly-flexible regulators of animal development. PMID- 29333438 TI - Effect of Endogenous Arginine-Vasopressin Arising from the Paraventricular Nucleus on Learning and Memory Functions in Vascular Dementia Model Rats. AB - The hippocampus is a key structure for encoding and processing memory and for spatial orientation, which are among the cognitive functions most sensitive to cerebral ischemia, hypoxia, and vascular dementia (VD). Since hippocampal formation is one of the principle forebrain targets for arginine-vasopressin (AVP) innervations arising in the hypothalamic paraventricular nucleus (PVN), we explored the contributions of AVP to VD pathogenesis. To this end, we randomly assigned pathogen-free, male Wistar rats to one of seven groups in a VD model and tested AVP treatment effects on spatial learning and memory using the Morris water maze. We also measured the superoxide dismutase (SOD) activity and malondialdehyde (MDA) concentration in brain samples and monitored the expression of AVP-positive neurons in the hippocampus by immunohistochemistry. The VD model with repeated cerebral ischemia-reperfusion injury evoked impairment of cognitive function and reduced cerebral concentrations of the antioxidation markers. Lesioning the rat PVN showed a similar effect on learning and memory and reduced antioxidation markers in the brain tissue. However, AVP injection into the PVN improved cognitive performance in VD rats, while enhancing/rectifying the changes in antioxidation markers. We conclude that our VD model may decrease AVP secretion in the PVN and subsequently reduce antioxidant capacity in the hippocampus, leading to impaired cognitive function. PMID- 29333439 TI - Cloning, Expression, and Immunogenicity of Fimbrial-F17A Subunit Vaccine against Escherichia coli Isolated from Bovine Mastitis. AB - There is a need to identify and select new promising immunodominant antigens that have the ability to provide protective immunity against E. coli causing bovine mastitis. Recently we showed that f17a was found to be the most prevalent and crucial virulent factor among the pathogenic E. coli isolated from bovine mastitis. Here, in this report, the recombinant F17A based subunit vaccine adjuvant with MF59 was tested for immunogenicity against E. coli in a murine model. The vaccinated mice did not show any abnormal behavioral changes and histopathological lesions after vaccination. The specific antibody level against F17A was significantly higher in MF59-adjuvant-group, and also lasted for longer duration with a significant (P < 0.01) production level of IgG1 and IgG2a. Moreover, we noted higher survival rate in mice injected with F17A-MF59-adjuvant group after challenging with the clinical E. coli strain. Our findings of bacterial clearance test revealed that elimination rate from liver, spleen, and kidney in MF59-adjuvant-group was significantly higher than the control group. Finally, the proportion of CD4+T cells was increased, while CD8+ was decreased in MF59-adjuvant group. In conclusion, the current study reveals the capability of F17A-MF59 as a potential vaccine candidate against pathogenic E. coli causing mastitis in dairy animals. PMID- 29333440 TI - Erratum to "Collagen Sponge Functionalized with Chimeric Anti-BMP-2 Monoclonal Antibody Mediates Repair of Critical-Size Mandibular Continuity Defects in a Nonhuman Primate Model". AB - [This corrects the article DOI: 10.1155/2017/8094152.]. PMID- 29333441 TI - Corrigendum to "Safety and Clinical Usage of Newcastle Disease Virus in Cancer Therapy". AB - [This corrects the article DOI: 10.1155/2011/718710.]. PMID- 29333442 TI - Characterisation of Casein Kinase 1.1 in Leishmania donovani Using the CRISPR Cas9 Toolkit. AB - The recent adaptation of CRISPR Cas9 genome editing to Leishmania spp. has opened a new era in deciphering Leishmania biology. The method was recently improved using a PCR-based CRISPR Cas9 approach, which eliminated the need for cloning. This new approach, which allows high-throughput gene deletion, was successfully validated in L. mexicana and L. major. In this study, we validated the toolkit in Leishmania donovani targeting the flagellar protein PF16, confirming that the tagged protein localizes to the flagellum and that null mutants lose their motility. We then used the technique to characterise CK1.1, a member of the casein kinase 1 family, which is involved in the regulation of many cellular processes. We showed that CK1.1 is a low-abundance protein present in promastigotes and in amastigotes. We demonstrated that CK1.1 is not essential for promastigote and axenic amastigote survival or for axenic amastigote differentiation, although it may have a role during stationary phase. Altogether, our data validate the use of PCR-based CRISPR Cas9 toolkit in L. donovani, which will be crucial for genetic modification of hamster-derived, disease-relevant parasites. PMID- 29333443 TI - Tumor Necrosis Factor-Like Weak Inducer of Apoptosis Activates Type I Interferon Signals in Lupus Nephritis. AB - Type I interferon (IFN) plays a central role in pathogenesis of systemic lupus erythematosus (SLE); tumor necrosis factor-like weak inducer of apoptosis (TWEAK) has been associated with a pathogenic role in lupus nephritis (LN). Thus we investigated whether TWEAK could induce the activation of type I IFN pathway in LN. We examined this in patient-derived peripheral blood mononuclear cells (PBMCs) as well as MRL/lpr mice, a murine LN model. Relative to the control cohorts, MRL/lpr mice showed severe histological changes, high index levels of renal damage, and elevated expression of type I IFN-inducible genes. After shRNA suppression of TWEAK, we observed that renal damage was significantly attenuated and expression of type I IFN-inducible genes was reduced in MRL/lpr mice. In parallel, siRNA of TWEAK also significantly reduced the expression of type I IFN inducible genes in PBMCs relative to control transfections. In PBMCs, TWEAK stimulation also led to expression of type I IFN-inducible genes. Our results illustrate a novel regulatory role of TWEAK, in which its activity positively regulates type I IFN pathway in LN based on preclinical models. Our findings suggest TWEAK could act as a critical target in preventing renal damage in patients with LN. PMID- 29333444 TI - MicroRNA-31 Function as a Suppressor Was Regulated by Epigenetic Mechanisms in Gastric Cancer. AB - Gastric cancer is one of the most lethal malignancies worldwide. The aberrant expression of microRNA-31 (miR-31) has been reported in gastric cancer; however, its regulation mechanisms are still unclear. Here, we confirmed that miR-31 expression was significantly decreased in gastric cancer tissue and cell lines. Ectopic expression of miR-31 potentially suppresses proliferation and induced early apoptosis in gastric cancer cells. Furthermore, miR-31 expression was regulated as a result of epigenetic mechanisms. The downregulation of miR-31 was associated with promoter DNA methylation status in gastric cancer and cell lines. Moreover, we found that HDAC2 was the direct target of miR-31 by binding to 3' UTR from the results of luciferase reporter assays, qRT-PCR, and western blotting. HDAC2 played an activation role in tumor growth, whose expression is upregulated and inversely associated with miR-31 levels. All the results suggested that miR-31 function as a crucial tumor suppressor was regulated by epigenetic mechanisms in gastric cancer. We found an epigenetic pathway loop, DNA methylation-miRNA expression-target gene-tumor progression in gastric cancer, and also provided implications for molecular diagnosis and therapeutics of gastric malignancies by detecting miR-31 as a potential target. PMID- 29333445 TI - Retrograde Activation of the Extrinsic Apoptotic Pathway in Spinal-Projecting Neurons after a Complete Spinal Cord Injury in Lampreys. AB - Spinal cord injury (SCI) is a devastating condition that leads to permanent disability because injured axons do not regenerate across the trauma zone to reconnect to their targets. A prerequisite for axonal regeneration will be the prevention of retrograde degeneration that could lead to neuronal death. However, the specific molecular mechanisms of axotomy-induced degeneration of spinal projecting neurons have not been elucidated yet. In lampreys, SCI induces the apoptotic death of identifiable descending neurons that are "bad regenerators/poor survivors" after SCI. Here, we investigated the apoptotic process activated in identifiable descending neurons of lampreys after SCI. For this, we studied caspase activation by using fluorochrome-labeled inhibitors of caspases, the degeneration of spinal-projecting neurons using Fluro-Jade C staining, and the involvement of the intrinsic apoptotic pathway by means of cytochrome c and Valpha double immunofluorescence. Our results provide evidence that, after SCI, bad-regenerating spinal cord-projecting neurons slowly degenerate and that the extrinsic pathway of apoptosis is involved in this process. Experiments using the microtubule stabilizer Taxol showed that caspase-8 signaling is retrogradely transported by microtubules from the site of axotomy to the neuronal soma. Preventing the activation of this process could be an important therapeutic approach after SCI in mammals. PMID- 29333446 TI - Adaptation and Validation of the Foot Function Index-Revised Short Form into Polish. AB - Purpose: The aim of the present study was to adapt the Foot Function Index Revised Short Form (FFI-RS) questionnaire into Polish and verify its reliability and validity in a group of patients with rheumatoid arthritis (RA). Methods: The study included 211 patients suffering from RA. The FFI-RS questionnaire underwent standard linguistic adaptation and its psychometric parameters were investigated. The enrolled participants had been recruited for seven months as a convenient sample from the rheumatological hospital in Srem (Poland). They represented different sociodemographic characteristics and were characterized as rural and city environments residents. Results: The mean age of the patients was 58.9 +/- 10.2 years. The majority of patients (85%) were female. The average final FFI-RS score was 62.9 +/- 15.3. The internal consistency was achieved at a high level of 0.95 in Cronbach's alpha test, with an interclass correlation coefficient ranging between 0.78 and 0.84. A strong correlation was observed between the FFI-RS and Health Assessment Questionnaire-Disability Index (HAQ-DI) questionnaires. Conclusion: The Polish version of FFI-RS-PL indicator is an important tool for evaluating the functional condition of patients' feet and can be applied in the diagnosis and treatment of Polish-speaking patients suffering from RA. PMID- 29333447 TI - Comparison of Different Contrast Agents in Detecting Cardiac Right-to-Left Shunt in Patients with a Patent Foramen Ovale during Contrast-Transthoracic Echocardiography. AB - The aim of this study is to evaluate the ability of two different contrast agents to detect cardiac right-to-left shunting in patients with a patent foramen ovale during contrast transthoracic echocardiography and transesophageal echocardiography. Eighty-four patients who had migraines or experienced cryptogenic stroke were prospectively enrolled. Contrast echocardiography of the right portion of the heart was performed using an injection of either (i) 8 ml of agitated saline, 1 ml of blood, and 1 ml of air (ASB) or (ii) 4 ml of vitamin B6 and 6 ml of sodium bicarbonate solution (VSBS). All patients underwent contrast echocardiography with different contrast agents successively before undergoing transesophageal echocardiography. The diagnostic sensitivity of VSBS and ASB for cardiac shunting diagnosis was 94.23% and 78.85%, respectively. The diagnostic sensitivity in the VSBS group was significantly higher than that in the ASB group (chi2 = 5.283, P = 0.022). The observed semiquantitative shunt grading suggests that the positive rate in the VSBS group was higher than that in the ASB group (Z = -1.998, P = 0.046). The use of vitamin B6 and sodium bicarbonate solution as a TTE contrast agent yielded a high sensitivity compared with ASB. However, further trials with large sample size are required to confirm this finding. PMID- 29333448 TI - Comparison of Monolateral External Fixation and Internal Fixation for Skeletal Stabilisation in the Management of Small Tibial Bone Defects following Successful Treatment of Chronic Osteomyelitis. AB - Background: To compare the salvage rate and complication between internal fixation and external fixation in patients with small bone defects caused by chronic infectious osteomyelitis debridement. Methods: 125 patients with chronic infectious osteomyelitis of tibia fracture who underwent multiple irrigation, debridement procedure, and local/systemic antibiotics were enrolled. Bone defects, which were less than 4 cm, were treated with bone grafting using either internal fixation or monolateral external fixation. 12-month follow-up was conducted with an interval of 3 months to evaluate union of bone defect. Results: Patients who underwent monolateral external fixation had higher body mass index and fasting blood glucose, longer time since injury, and larger bone defect compared with internal fixation. No significant difference was observed in incidence of complications (23.5% versus 19.3%), surgery time (156 +/- 23 minutes versus 162 +/- 21 minutes), and time to union (11.1 +/- 3.0 months versus 10.9 +/ 3.1 months) between external fixation and internal fixation. Internal fixation had no significant influence on the occurrence of postoperation complications after multivariate adjustment when compared with external fixation. Furthermore, patients who underwent internal fixation experienced higher level of daily living scales and lower level of anxiety. Conclusions: It was relatively safe to use internal fixation for stabilization in osteomyelitis patients whose bone defects were less than 4 cm and infection was well controlled. PMID- 29333449 TI - The Root Membrane Technique: Human Histologic Evidence after Five Years of Function. AB - Background: The "root membrane" (RM) is a technique that has become popular among implantologists for placement of immediate implants in the anterior maxilla. Purpose: To present histologic evidence of an immediate implant placed in the human anterior maxilla, according to the RM technique, and retrieved after five years. Methods: A fixture, along with the surrounding tissues, was retrieved from the anterior maxilla of a 68-year-old patient, who had been treated five years earlier with immediate implant placement and RM technique. The specimen was processed for histologic/histomorphometric evaluation. Results: The buccal bone plate was maintained without any resorption; a healthy periodontal ligament was evidenced. The implant showed osseointegration, with a high percentage of bone-to implant contact (BIC = 76.2%). With regard to the space between the RM and the implant, the apical and medial thirds were filled with compact, mature bone; the coronal third was colonized by noninfiltrated connective tissue. Conclusions: The RM technique appears to be effective in preventing bone resorption of the buccal bone plate of the human anterior maxilla, five years after the placement of an immediate implant. PMID- 29333450 TI - RBP4: A Culprit for Insulin Resistance in End Stage Renal Disease That Can Be Cleared by Hemodiafiltration. AB - Introduction: Retinol Binding Protein 4 (RBP4) is mainly excreted by the kidney and plays a pivotal role in insulin resistance (IR). In our study, we evaluated the association between RBP4 and IR in hemodialysis subjects (HD). We also assessed how circulating RBP4 could be influenced by kidney transplant or different dialytic techniques. Methods: RBP4 serum levels were evaluated in HD (n = 16) and matched healthy controls (C; n = 16). RBP4 and glucose transporter type 4 (GLUT4) mRNA expressions were also determined in adipose tissue. Circulating RBP4 was evaluated after kidney transplant (n = 7) and in hemodialysis patients (n = 10) enrolled in a cross-over study treated with standard bicarbonate dialysis (BD) or hemodiafiltration (HDF). Results: HOMA index (P < 0.05) and serum RBP4 (P < 0.005) were higher in HD compared to C. RBP4 levels positively correlated with fasting serum glucose (P < 0.05). RBP4 mRNA was lower in HD compared to C (P < 0.05) and positively correlated with kidney function (P < 0.05) and GLUT4 mRNA (P < 0.001). Transplant or HDF reduced circulating RBP4 (P < 0.01 and P < 0.05, resp.). Our results demonstrate that IR is associated with high circulating RBP4 and that suppressed RBP4 adipose tissue expression is accompanied by reduced GLUT4 expression in HD. Renal transplantation or HDF are effective in lowering serum RBP4 levels. PMID- 29333452 TI - Jail Diversion for Persons with Serious Mental Illness Coordinated by a Prosecutor's Office. AB - Persons with serious mental illnesses (SMI) are involved in the criminal justice system at a disproportionately higher rate than the general population. While the exact causes remain unclear, it is accepted that a comprehensive strategy including mental health treatment is needed to reduce recidivism. This paper describes a unique jail diversion program coordinated by a county prosecutor's office in which individuals were diverted towards mental health services including case management, community-based services, and housing supports. Outcomes were studied over a five-year period, beyond the typical 12- to 24-month follow-up in other studies. Individuals who completed the program, compared to those who did not complete it, were at lower risk for being rearrested, arrested fewer times, and incarcerated fewer days. Gains were moderated by previous criminal justice involvement and substance use but, nevertheless, were maintained despite severity of history. The strongest gains were seen while the individual was still actively enrolled in the diversion services and these outcomes were maintained for up to four years. These findings suggest that completion of a jail diversion program facilitated by a prosecutor's office can lower recidivism and days incarcerated. Further research is needed to assess the unique contribution of prosecutor office facilitation. PMID- 29333451 TI - Purification, Characterization, and Mode of Action of Pentocin JL-1, a Novel Bacteriocin Isolated from Lactobacillus pentosus, against Drug-Resistant Staphylococcus aureus. AB - Staphylococcus aureus and its drug-resistant strains, which threaten public health and food safety, are in need of effective control by biopreservatives. A novel bacteriocin, pentocin JL-1, produced by Lactobacillus pentosus that was isolated from the intestinal tract of Chiloscyllium punctatum, was purified by a four-step chromatographic process. Mass spectrometry based on MALDI-TOF indicated that pentocin JL-1 has a molecular mass of 2987.23 Da. Only six of the twenty five amino acids could be identified by Edman degradation. This bacteriocin is thermostable and tolerates a pH range of 5-7. Also, it is sensitive to proteinase K, trypsin, pepsin, and alkaline protease. This bacteriocin has a broad inhibitory spectrum against both Gram-positive and Gram-negative strains and in particular is effective against multidrug-resistant S. aureus. Additionally, we showed that the cell membrane is the target of pentocin JL-1 against methicillin resistant S. aureus (MRSA), causing a loss of proton motive force. Furthermore, pentocin JL-1 has a drastic impact on the structure and integrity of MRSA cells. These results suggest that pentocin JL-1 has potential as a biopreservative in the food industry. PMID- 29333453 TI - Hibiscus syriacus Extract from an Established Cell Culture Stimulates Skin Wound Healing. AB - Higher plants are the source of a wide array of bioactive compounds that support skin integrity and health. Hibiscus syriacus, family Malvaceae, is a plant of Chinese origin known for its antipyretic, anthelmintic, and antifungal properties. The aim of this study was to assess the healing and hydration properties of H. syriacus ethanolic extract (HSEE). We established a cell culture from Hibiscus syriacus leaves and obtained an ethanol soluble extract from cultured cells. The properties of the extract were tested by gene expression and functional analyses on human fibroblast, keratinocytes, and skin explants. HSEE treatment increased the healing potential of fibroblasts and keratinocytes. Specifically, HSEE significantly stimulated fibronectin and collagen synthesis by 16 and 60%, respectively, while fibroblasts contractility was enhanced by 30%. These results were confirmed on skin explants, where HSEE accelerated the wound healing activity in terms of epithelium formation and fibronectin production. Moreover, HSEE increased the expression of genes involved in skin hydration and homeostasis. Specifically, aquaporin 3 and filaggrin genes were enhanced by 20 and 58%, respectively. Our data show that HSEE contains compounds capable of stimulating expression of biomarkers relevant to skin regeneration and hydration thereby counteracting molecular pathways leading to skin damage and aging. PMID- 29333455 TI - Molecular and Cellular Mechanisms of Neuroinflammation. PMID- 29333454 TI - Virtual Reality Telerehabilitation for Postural Instability in Parkinson's Disease: A Multicenter, Single-Blind, Randomized, Controlled Trial. AB - Introduction: Telerehabilitation enables patients to access remote rehabilitation services for patient-physiotherapist videoconferencing in their own homes. Home based virtual reality (VR) balance training has been shown to reduce postural instability in patients with Parkinson's disease (PD). The primary aim was to compare improvements in postural stability after remotely supervised in-home VR balance training and in-clinic sensory integration balance training (SIBT). Methods: In this multicenter study, 76 PD patients (modified Hoehn and Yahr stages 2.5-3) were randomly assigned to receive either in-home VR telerehabilitation (n = 38) or in-clinic SIBT (n = 38) in 21 sessions of 50 minutes each, 3 days/week for 7 consecutive weeks. VR telerehabilitation consisted of graded exergames using the Nintendo Wii Fit system; SIBT included exercises to improve postural stability. Patients were evaluated before treatment, after treatment, and at 1-month follow-up. Results: Analysis revealed significant between-group differences in improvement on the Berg Balance Scale for the VR telerehabilitation group (p = 0.04) and significant Time * Group interactions in the Dynamic Gait Index (p = 0.04) for the in-clinic group. Both groups showed differences in all outcome measures over time, except for fall frequency. Cost comparison yielded between-group differences in treatment and equipment costs. Conclusions: VR is a feasible alternative to in-clinic SIBT for reducing postural instability in PD patients having a caregiver. PMID- 29333457 TI - Heterologous Secretory Expression and Characterization of Dimerized Bone Morphogenetic Protein 2 in Bacillus subtilis. AB - Recombinant human Bone Morphogenetic Protein 2 (rhBMP2) has important applications in the spine fusion and ortho/maxillofacial surgeries. Here we first report the secretory expression of biological active dimerized rhBMP2 from Bacillus subtilis system. The mature domain of BMP2 gene was amplified from pTz57R/BMP2 plasmid. By using pHT43 expression vector two constructs, pHT43-BMP2 M (single BMP2 gene) and pHT43-BMP2-D (two BMP2 genes coupled with a linker to produce a dimer), were designed. After primary cloning (DH5alpha strain) and sequence analysis, constructs were transformed into Bacillus subtilis for secretory expression. Expression conditions like media (2xYT) and temperature (30 degrees C) were optimized. Maximum 35% and 25% secretory expression of monomer (~13 kDa) and dimer (~25 kDa), respectively, were observed on SDS-PAGE in SCK6 strain. The expression and dimeric nature of rhBMP2 were confirmed by western blot and native PAGE analysis. For rhBMP2 purification, 200 ml culture supernatant was freeze dried to 10 ml and dialyzed (Tris-Cl, pH 8.5) and Fast Protein Liquid Chromatography (6 ml, Resource Q column) was performed. The rhBMP2 monomer and dimer were eluted at 0.9 M and 0.6 M NaCl, respectively. The alkaline phosphatase assay of rhBMP2 (0, 50, 100, 200, and 400 ng/ml) was analyzed on C2C12 cells and maximum 200 ng/ml activity was observed in dose dependent manner. PMID- 29333456 TI - Protective Effects of Garlic-Derived S-Allylmercaptocysteine on IL-1beta Stimulated Chondrocytes by Regulation of MMPs/TIMP-1 Ratio and Type II Collagen Expression via Suppression of NF-kappaB Pathway. AB - Background: Garlic-derived S-allylmercaptocysteine (SAMC) has widely been used in many disease therapies. However, the potential effects and mechanism of SAMC on IL-1beta-stimulated chondrocytes are unclear. Methods: Chondrocytes were isolated, and 5 ng/mL of IL-1beta was added to mimic the in vitro osteoarthritis (OA) model. SAMC (20 and 60 MUM) was used for the treatment in OA model. Cell viability was assessed by MTT method. Western blotting, Quantitative RT-PCR, and ELISA were performed to evaluate the mechanisms in SAMC treated OA model. Results: Following 48 h of IL-1beta exposure, SAMC exhibited protection effect on IL-1beta-injured chondrocyte viability. Type II collagen was elevated with reduced degradation products, as a consequence of altered MMPs/TIMP-1 ratio after SAMC treatment in IL-1beta-treated chondrocytes. The protein and mRNA level of TNF-alpha in cellular supernatant and cells were downregulated in a dose dependent manner. Besides, IkappaBalpha in cytoplasmic fraction was increased, while p65 level in nuclear fraction was decreased after SAMC treatment in OA. Conclusions: This study showed that SAMC may play a protective role in IL-1beta induced osteoarthritis (OA) model. This effect may be through inhibiting the NF kappaB signaling pathway, therefore altering the MMPs/TIMP-1 ratio change which induced type II collagen destruction and decreasing inflammatory cytokine secretion such as TNF-alpha. PMID- 29333459 TI - Assessment of Insulin Injection Practice among Diabetes Patients in a Tertiary Healthcare Centre in Nepal: A Preliminary Study. AB - Introduction: Proper insulin injection practice is essential for better diabetic control. This study aims to assess the insulin injection practice of patients with diabetes. Materials and Methods: A cross-sectional study was conducted at Chitwan Medical College Teaching Hospital, Bharatpur, Nepal, from February 2017 to May 2017. Patients injecting insulin through insulin pens (n = 43) for a minimum of 4 weeks were consecutively recruited. Patients' baseline characteristics, current insulin injection technique, insulin transportation practice, complications of insulin injection, disposal practice of used needle, and acceptability of insulin were recorded. Descriptive statistics were performed using IBM-SPSS 20.0. Results: The insulin injection technique of patients and their relatives was inadequate. The majority of patients and their relatives (25, 58.1%) mentioned that they transport their insulin cartridge without maintaining cold chain. Thirteen patients (30.2%, n = 43) reported complications of insulin injection and the most common complication among those patients was bruising (10, 76.9%, n = 13). Almost all patients disposed the used needle improperly, and the common method was disposing the needle in a dustbin and then transferring to municipal waste disposal vehicle. Insulin was accepted by just 16 (37.2%) patients. Conclusion: There was a significant gap between the insulin delivery recommendation through insulin pen and current insulin injection practice. PMID- 29333458 TI - SOX6 Downregulation Induces gamma-Globin in Human beta-Thalassemia Major Erythroid Cells. AB - Background: Fetal hemoglobin (HbF; alpha2gamma2) is a potent genetic modifier of the severity of beta-thalassemia and sickle cell anemia. Differences in the levels of HbF that persist into adulthood affect the severity of sickle cell disease and the beta-thalassemia syndromes. Sry type HMG box (SOX6) is a potent silencer of HbF. Here, we reactivated gamma-globin expression by downregulating SOX6 to alleviate anemia in the beta-thalassemia patients. Methods: SOX6 was downregulated by lentiviral RNAi (RNA interference) in K562 cell line and an in vitro culture model of human erythropoiesis in which erythroblasts are derived from the normal donor mononuclear cells (MNC) or beta-thalassemia major MNC. The expression of gamma-globin was analyzed by qPCR (quantitative real-time PCR) and WB (western blot). Results: Our data showed that downregulation of SOX6 induces gamma-globin production in K562 cell line and human erythrocytes from normal donors and beta-thalassemia major donors, without altering erythroid maturation. Conclusions: This is the first report on gamma-globin induction by downregulation of SOX6 in human erythroblasts derived from beta-thalassemia major. PMID- 29333461 TI - Extracorporeal Shock Wave Therapy for Coronary Artery Disease: Relationship of Symptom Amelioration and Ischemia Improvement. AB - Objectives: The current management of coronary artery disease (CAD) relies on three major therapeutic options, namely medication, percutaneous coronary intervention (PCI), and coronary artery bypass grafting (CABG). However, severe CAD that is not indicated for PCI or CABG still bears a poor prognosis due to the lack of effective treatments. In 2006, extracorporeal cardiac shock wave (SW) therapy reported on human for the first time. This treatment resulted in better myocardial perfusion as evaluated by dipyridamole stress thallium scintigraphy, angina symptoms, and exercise tolerance. The aim of the present study was to investigate: myocardial perfusion images and evaluate the relationship between the ischemia improvement and symptom amelioration by SW therapy. Methods: We treated ten patients (i.e., nine males and one female) with cardiac SW therapy who had CAD but not indicated for PCI or CABG and aged 63-89 years old. After the SW therapy, all patients were followed up for three months to evaluate any amelioration of the myocardial ischemia based on symptoms, adenosine stress thallium scintigraphy, transthoracic echocardiography, and blood biochemical examinations. Results: The changes in various parameters were evaluated before and after cardiac SW therapy. The cardiac SW therapy resulted in a significant improvement in the symptoms as evaluated by the Canadian Cardiovascular Society [CCS] class score (P=0.016) and a tendency to improve in summed stress score (SSS) (P=0.068). However, no significant improvement was observed in the summed rest score (SRS), summed difference score (SDS), left ventricular wall motion score index (LVWMSI), N-terminal pro-brain natriuretic, and troponin I. The difference of CCS class score (DeltaCCS) was significantly correlated with those of SSS (DeltaSSS) and SDS (DeltaSDS) (r=0.69, P=0.028 and r=0.70, P=0.025, respectively). There was no significant correlation between DeltaCCS and other parameters. Furthermore, no significant difference was observed between the CCS improved and non-improved groups in terms of the baseline characteristics. Conclusion: The current study demonstrated the potential efficacy and safety of Cardiac SW therapy in CAD patients. As the findings indicated, symptom amelioration was associated with ischemia improvement by extracorporeal shock wave therapy for the CAD patients. PMID- 29333462 TI - Assessment of Ultrasound / Radio-guided Occult Lesion Localization in Non palpable Breast Lesions. AB - Objectives: Controversy exists about the localization of non-palpable breast lesions. In many countries, the gold standard for the diagnosis of these lesions is needle localization due to its accuracy. This study sought to compare the ultrasound- and radio-guided occult lesion localization (ROLL) as a simple method with the conventional procedures in terms of their diagnostic power. Methods: This study was conducted on 94 patients with non-palpable breast lesions detected by ultrasonography and localized by the combination of ultrasonography and using radiopharmaceuticals. One to ten hours prior to surgery, 0.1-0.2 ml (equivalent to 0.5-1 mCi) of Tc-99m-phytate was injected to the lesion under the guidance of ultrasonography. Then, the lesion was localized using a hand-held gamma probe, and excision of the lesion was performed according to its radioactivity signal. Data analysis was performed using SPSS, version 16. Results: Benign and malignant pathologic results were observed in 77 (81.9%) and 17(18.1%) of the patients, respectively, and the mean volume of the excised tissue was 26.29+/-27 mm3. 79 patients had a solitary lesion (84%), 55 in the left breast (58.5%) and 39 in superolateral quadrant (41.5%). The mean size of the lesions was 15.7 mm in diameter (ranging from 4 to 34 mm). Additionally, there was a need to secondary surgery in 3 (3.2%) patients and inappropriate localization in 6 (6.4%) patients (subcutaneous or intra-ductal spread of radiodrug). Conclusion: Combination of ultrasound- and radio-guided localization methods for localizing non-palpable breast lesions is a simple and acceptable method for localization with no significant complications. For radio-drug spread and subsequent excessive excised tissue volume, subcutaneous and intra-ductal lesions are not suitable indication for ROLL. PMID- 29333460 TI - HLA Association with Drug-Induced Adverse Reactions. AB - Adverse drug reactions (ADRs) remain a common and major problem in healthcare. Severe cutaneous adverse drug reactions (SCARs), such as Stevens-Johnson syndrome (SJS)/toxic epidermal necrolysis (TEN) with mortality rate ranges from 10% to more than 30%, can be life threatening. A number of recent studies demonstrated that ADRs possess strong genetic predisposition. ADRs induced by several drugs have been shown to have significant associations with specific alleles of human leukocyte antigen (HLA) genes. For example, hypersensitivity to abacavir, a drug used for treating of human immunodeficiency virus (HIV) infection, has been proposed to be associated with allele 57:01 of HLA-B gene (terms HLA-B*57:01). The incidences of abacavir hypersensitivity are much higher in Caucasians compared to other populations due to various allele frequencies in different ethnic populations. The antithyroid drug- (ATDs- ) induced agranulocytosis are strongly associated with two alleles: HLA-B*38:02 and HLA-DRB1*08:03. In addition, HLA-B*15:02 allele was reported to be related to carbamazepine-induced SJS/TEN, and HLA-B*57:01 in abacavir hypersensitivity and flucloxacillin induced drug-induced liver injury (DILI). In this review, we summarized the alleles of HLA genes which have been proposed to have association with ADRs caused by different drugs. PMID- 29333463 TI - Characteristics of Smoothing Filters to Achieve the Guideline Recommended Positron Emission Tomography Image without Harmonization. AB - Objectives: The aim of this study is to examine the effect of different smoothing filters on the image quality and SUVmax to achieve the guideline recommended positron emission tomography (PET) image without harmonization. Methods: We used a Biograph mCT PET scanner. A National Electrical Manufacturers Association (NEMA) the International Electrotechnical Commission (IEC) body phantom was filled with 18F solution with a background activity of 2.65 kBq/mL and a sphere to-background ratio of 4. PET images obtained with the Biograph mCT PET scanner were reconstructed using the ordered subsets-expectation maximization (OSEM) algorithm with time-of-flight (TOF) models (iteration, 2; subset, 21); smoothing filters including the Gaussian, Butterworth, Hamming, Hann, Parzen, and Shepp Logan filters with various full width at half maximum (FWHM) values (1-15 mm) were applied. The image quality was physically assessed according to the percent contrast (QH,10), background variability (N10), standardized uptake value (SUV), and recovery coefficient (RC). The results were compared with the guideline recommended range proposed by the Japanese Society of Nuclear Medicine and the Japanese Society of Nuclear Medicine Technology. The PET digital phantom was developed from the digital reference object (DRO) of the NEMA IEC body phantom smoothed using a Gaussian filter with a 10-mm FWHM and defined as the reference image. The difference in the SUV between the PET image and the reference image was evaluated according to the root mean squared error (RMSE). Results: The FWHMs of the Gaussian, Butterworth, Hamming, Hann, Parzen, and Shepp-Logan filters that satisfied the image quality of the FDG-PET/CT standardization guideline criteria were 8-12 mm, 9-11 mm, 9-13 mm, 10-13 mm, 9-11 mm, and 12-15 mm, respectively. The FWHMs of the Gaussian, Butterworth, Hamming, Hann, Parzen, and Shepp-Logan filters that provided the smallest RMSE between the PET images and the 3D digital phantom were 7 mm, 8 mm, 8 mm, 8 mm, 7 mm, and 11 mm, respectively. Conclusion: The suitable FWHM for image quality or SUVmax depends on the type of smoothing filter that is applied. PMID- 29333464 TI - Comparison of TOF-PET and Bremsstrahlung SPECT Images of Yttrium-90: A Monte Carlo Simulation Study. AB - Objectives: Yttrium-90 (90Y) is a beta particle nuclide used in targeted radionuclide therapy which is available to both single-photon emission computed tomography (SPECT) and time-of-flight (TOF) positron emission tomography (PET) imaging. The purpose of this study was to assess the image quality of PET and Bremsstrahlung SPECT by simulating PET and SPECT images of 90Y using Monte Carlo simulation codes under the same conditions and to compare them. Methods: In-house Monte Carlo codes, MCEP-PET and MCEP-SPECT, were employed to simulate images. The phantom was a torso-shaped phantom containing six hot spheres of various sizes. The background concentrations of 90Y were set to 50, 100, 150, and 200 kBq/mL, and the concentrations of the hot spheres were 10, 20, and 40 times of those of the background concentrations. The acquisition time was set to 30 min, and the simulated sinogram data were reconstructed using the ordered subset expectation maximization method. The contrast recovery coefficient (CRC) and contrast-to noise ratio (CNR) were employed to evaluate the image qualities. Results: The CRC values of SPECT images were less than 40%, while those of PET images were more than 40% when the hot sphere was larger than 20 mm in diameter. The CNR values of PET images of hot spheres of diameter smaller than 20 mm were larger than those of SPECT images. The CNR values mostly exceeded 4, which is a criterion to evaluate the discernibility of hot areas. In the case of SPECT, hot spheres of diameter smaller than 20 mm were not discernable. On the contrary, the CNR values of PET images decreased to the level of SPECT, in the case of low concentration. Conclusion: In almost all the cases examined in this investigation, the quantitative indexes of TOF-PET 90Y images were better than those of Bremsstrahlung SPECT images. However, the superiority of PET image became critical in the case of low activity concentrations. PMID- 29333465 TI - In vivo Exposure Effects of 99mTc-methoxyisobutylisonitrile on the FDXR and XPA Genes Expression in Human Peripheral Blood Lymphocytes. AB - Objectives: In recent years, the application of radiopharmaceuticals in nuclear medicine has increased substantially. Following the diagnostic procedures performed in nuclear medicine departments, such as myocardial perfusion imaging, patients generally receive considerable doses of radiation. Normally, radiation induced DNA damages are expected following exposure to a low-dose ionizing radiation. In order to detect molecular changes, high-sensitivity techniques must be utilized. The aim of this study was to assess the effect of a low-dose (below 10 mSv) gamma ray on gene expression using quantitative real-time polymerase chain reaction (qRT-PCR). Methods: Blood samples were obtained from 20 volunteer patients who underwent myocardial perfusion imaging. They were given various doses of Technetium-99m methoxyisobutylisonitrile (99mTc-MIBI). After that, peripheral blood mononuclear cells (PBMNs) were derived, and then total RNA was extracted and reverse-transcribed to cDNA. Finally, the expression levels of xeroderma pigmentosum complementation group-A (XPA) and ferredoxin reductase (FDXR) genes were determinded through qRT-PCR technique using SYBR Green. Results: XPA and FDXR expression levels were obtained following a very low-dose ionizing radiation. A significant up-regulation of both genes was observed, and the gene expression level of each individual patient was different. If differences in the administered activity and radiosensitivity are taken into account, the observed differences could be justified. Furthermore, gender and age did not play a significant role in the expression levels of the genes under study. Conclusion: The up-regulation of FDXR after irradiation revealed the high sensitivity level of this gene; therefore, it could be used as an appropriate biomarker for biological dosimetry. On the other hand, the up-regulation of XPA is an indication of DNA repair following radiation exposure. According to linear no-threshold model (LNT) and the results obtained from this study, a very low dose of ionizing radiation could bring about adverse biological effects at molecular level in the irradiated person. PMID- 29333466 TI - Evaluation of the Possible Utilization of 68Ga-DOTATOC in Diagnosis of Adenocarcinoma Breast Cancer. AB - Objectives: Studies have indicated advantageous properties of [DOTA-DPhe1, Tyr3] octreotide (DOTATOC) in tumor models and labeling with gallium. Breast cancer is the second leading cause of cancer mortality in women, and most of these cancers are often an adenocarcinoma. Due to the importance of target to non-target ratios in the efficacy of diagnosis, the pharmacokinetic of 68Ga-DOTATOC in an adenocarcinoma breast cancer animal model was studied in this research, and the optimized time for imaging was determined. Methods: 68Ga was obtained from 68Ge/68Ga generator. The complex was prepared at optimized conditions. Radiochemical purity of the complex was checked using both HPLC and ITLC methods. Biodistribution of the complex was studied in BALB/c mice bearing adenocarcinoma breast cancer. Also, PET/CT imaging was performed up to 120 min post injection. Results: The complex was produced with radiochemical purity of greater than 98% and specific activity of about 40 GBq/mM at optimized conditions. Biodistribution of the complex was studied in BALB/c mice bearing adenocarcinoma breast cancer indicated fast blood clearance and significant uptake in the tumor. Significant tumor: blood and tumor:muscle uptake ratios were observed even at early times post-injection. PET/CT images were also confirmed the considerable accumulation of the tracer in the tumor. Conclusion: Generally, the results proved the possible application of the radiolabelled complex for the detection of the adenocarcinoma breast cancer and according to the pharmacokenitic data, the suitable time for imaging was determined as at least 30 min after injection. PMID- 29333467 TI - A Simple Non-invasive I-123-IMP Autoradiography Method Developed by Modifying the Simple Non-invasive I-123-IMP Microsphere Method. AB - Objectives: We developed a simple non-invasive I-123-N-isopropyl-p iodoamphetamine (123I-IMP) quantification method by analyzing chest RI angiography and single photon emission computed tomography (SPECT) images based on the microsphere model (SIMS method). Theoretically, the SIMS method could be changed to the simple non-invasive ARG (SIARG) method by modifying the integrated washout ratio (WR) to one-point WR. If the regional cerebral blood flow (rCBF) values derived from the SIARG and ARG methods correlate well, the facilities employing the ARG method can easily switch to the SIARG method. The purpose of this study was to develop the SIARG method by modifying the SIMS method, and to confirm the feasibility of this method. Methods: The correlation between the input counts of the SIARG method and the blood counts was determined by linear regression analysis. The rCBF values determined by the SIARG method were compared with the values obtained with the ARG and SIMS methods. Results: There was a good linear correlation between the SIARG counts and the arterial blood counts obtained by the ARG method (r=0.85, P<0.001, n=29). The rCBF values obtained by the ARG and SIARG methods (n=29, 696 ROIs) correlated well (y=1.01x - 3.6, r=0.85, P<0.001). Similarly, the rCBF values obtained by the SIARG and SIMS methods (n=29, 696 ROIs) correlated well (y=0.98x - 15.2, r=0.90, P<0.001). rCBF values obtained by the SIARG method were almost the same as the values obtained by the ARG method, and values of the SIMS method were 15 ml/100g/min higher that of those obtained by the SIARG method. Conclusion: The rCBF values obtained by the ARG, SIARG, and SIMS methods correlated very well. Therefore, the SIARG method is potentially useful for examinations in routine clinical practice. PMID- 29333468 TI - Extraosseous Accumulation of Technetium-99m-Methyl Diphosphonate (99mTc-MDP) in a Child with ALL: A Case Report. AB - Extraosseous accumulation of technetium-99m-methyl diphosphonate (99mTc-MDP) on bone scan is not common. This phenomenon is often attributed to abnormality of calcium metabolism and has been reported in a variety of conditions including metabolic diseases and malignancies. A five years old boy is presented here, who was admitted to the pediatric emergency suffering from fatigue, respiratory symptoms, weight loss, intermittent fevers, anorexia, nausea and vomiting, edema of legs and abdominal distension for one month. The initial laboratory analysis revealed hypercalcemia. The patient was referred for whole body bone scan with suspicion of malignancy and bone metastasis. The bone scan revealed highly increased radiotracer uptake in both lungs in the perfusion and blood pool phases. Delayed images also showed increased activity in lungs and gastric wall. The skeleton was not seen clearly. Bone marrow aspiration was done and established the diagnosis of ALL. The patient deceased due to respiratory failure 20 days later. Diffuse lung uptake in this patient was consistent with respiratory failure and poor prognosis. It is reported that bone scan may be useful for assessment of the extent of metastatic calcification and may establish suitable management to prevent organ failure. PMID- 29333469 TI - Utility of F-18 FDG PET/CT for Detection of Bone Marrow Metastases in Prostate Cancer Patients Treated with Radium-223. AB - A 76-year-old man with symptomatic bone metastases from castration-resistant prostate cancer underwent Radium-223-dichloride (Ra-223) therapy. Before Ra-223 therapy, he had normal peripheral blood cell counts. Ra-223 therapy relieved his shoulder and low back pain. The elevation of the serum prostate-specific antigen (PSA), doubling every month during Ra-223 therapy, suggested a PSA flare or relapse. Some lesions showed decrease and some lesions showed increase on Tc-99m hydroxymethylene diphosphonate bone scintigraphy at two weeks after the third injection of Ra-223 therapy. Ra-223 therapy was discontinued due to thrombocytopenia that was getting worse rapidly. After treatment discontinuation, namely four weeks after the third injection of Ra-223, F-18 fluorodeoxyglucose (FDG) Positron Emission Tomography (PET)/CT and a biopsy were performed to evaluate for metastases, and bone marrow metastases were found. Ra-223 was effective for osteoblastic lesions, but not for bone marrow metastases. FDG PET/CT, but not a Tc-99m based bone scan, detected diffuse bone marrow involvement by cancer. This case report is the first to clarify the utility of FDG PET for the detection of bone marrow metastases confirmed by pathological examination in Ra-223 therapy for progressive castration-resistant prostate cancer. PMID- 29333470 TI - History and Perspectives of Nuclear Medicine in Myanmar. AB - Nuclear Medicine was established in Myanmar in 1963 by Dr Soe Myint and International Atomic Energy expert Dr R. Hochel at Yangon General Hospital. Nuclear medicine diagnostic and therapeutic services started with Probe Scintillation Detector Systems and rectilinear scanner. In the early stage, many Nuclear Medicine specialists from the International Atomic Energy Agency (IAEA) spent some time in Myanmar and made significant contributions to the development of Nuclear Medicine in our country. The department participated in various IAEA technical cooperation projects and regional cooperation projects. By the late 1990s, new centers were established in Mandalay, Naypyidaw, and North Okkalapa Teaching Hospital of University of Medicine 11, Yangon. The training program related to Nuclear Medicine includes a postgraduate master's degree (three years) at the University of Medicine. Currently, all centers are equipped with SPECT, SPECT-CT, PET-CT, and cyclotron in Yangon General Hospital. Up until now, the International Atomic Energy Agency has been playing a crucial role in the growth and development of Nuclear Medicine in Myanmar. Our vision is to provide a wide spectrum of nuclear medicine services at a level compatible with the international standards to become a Center of Excellence. PMID- 29333471 TI - Sectional Anatomy Quiz II. AB - This mage-based series comprises of a quiz pertaining to the identification of salient and important anatomical structures and landmarks expected to be seen at a given level on the computed tomography (CT). The representative image is followed by a series of images showing the examples of different commonly encountered pathological entities that can be seen at this level in a routine clinical practice. Readers are encouraged to identify the highlighted anatomical structures and landmarks in all the images and appreciate the alterations in the appearance of the normal structures resulting from the presence of a pathology. It is expected that this series will assist in improving the confidence of the nuclear physicians in the interpretation of the CT component of the single photon emission computed tomography (SPECT) and positron emission tomography (PET) studies. PMID- 29333472 TI - Black-White Disparities in Breast Cancer Subtype: The Intersection of Socially Patterned Stress and Genetic Expression. AB - Hormone receptor negative (HR-) breast cancer subtypes are etiologically distinct from the more common, less aggressive, and more treatable form of estrogen receptor positive (ER+) breast cancer. Numerous population-based studies have found that, in the United States, Black women are 2 to 3 times more likely to develop HR- breast cancer than White women. Much of the existing research on racial disparities in breast cancer subtype has focused on identifying predisposing genetic factors associated with African ancestry. This approach fails to acknowledge that racial stratification shapes a wide range of environmental and social exposures over the life course. Human stress genomics considers the role of individual stress perceptions on gene expression. Yet, the role of structurally rooted biopsychosocial processes that may be activated by the social patterning of stressors in an historically unequal society, whether perceived by individual black women or not, could also impact cellular physiology and gene expression patterns relevant to HR- breast cancer etiology. Using the weathering hypothesis as our conceptual framework, we develop a structural perspective for examining racial disparities in breast cancer subtypes, integrating important findings from the stress biology, breast cancer epidemiology, and health disparities literatures. After integrating key findings from these largely independent literatures, we develop a theoretically and empirically guided framework for assessing potential multilevel factors relevant to the development of HR- breast cancer disproportionately among Black women in the US. We hypothesize that a dynamic interplay among socially patterned psychosocial stressors, physiological & behavioral responses, and genomic pathways contribute to the increased risk of HR- breast cancer among Black women. This work provides a basis for exploring potential alternative pathways linking the lived experience of race to the risk of HR- breast cancer, and suggests new avenues for research and public health action. PMID- 29333474 TI - Saccades in progressive supranuclear palsy - maladapted, irregular, curved, and slow. AB - Background and objectives: Slowed and curved rapid eye movements, saccades, are the well-known features of progressive supranuclear palsy (PSP). We hypothesized that the saccades in PSP are not only slow and curved, but they are also irregular and have timing deficits. Methods: We tested this hypothesis in 12 patients with PSP by measuring vertical and horizontal visually guided saccades using a limbus tracker. Results: Both, horizontal and vertical saccades were slow and had irregular trajectory and velocity profiles, but deficits were much more robust in vertical saccades. The irregularity in the saccade velocity was due to premature interruptions that either completely stopped the eyes, or moved the eyes at much slower velocity along or in the opposite direction of the ongoing saccade. The direction of the eyes' trajectory was often changed after the interruption. We simulated a conductance based single-compartment model of the burst neurons embedded in local feedback circuit for saccade generation. This model mimicked anatomical and physiological realism, while allowing the liberty to selectively change the activation of individual burst neurons or the pause neurons. The PSP saccades were comparable to the simulations during reduced activity of the inhibitory and excitatory burst neurons. Conclusion: PSP saccades are due to the paucity in burst generation at the excitatory and imprecise timing signal from the inhibitory burst neurons. Premature discharge of the inhibitory burst neuron further leads to breaks in the saccade trajectory, and maladaptive superior colliculus activity leading to aberrant saccades changing the intended trajectory of the ongoing saccade. PMID- 29333475 TI - Whole-mount Enteroid Proliferation Staining. AB - Small intestinal organoids, otherwise known as enteroids, have become an increasingly utilized model for intestinal biology in vitro as they recapitulate the various epithelial cells within the intestinal crypt (Mahe et al., 2013; Sato et al., 2009). Assessment of growth dynamics within these cultures is an important step to understanding how alterations in gene expression, treatment with protective and toxic agents, and genetic mutations alter properties essential for crypt growth and survival as well as the stem cell properties of the individual cells within the crypt. This protocol describes a method of visualization of proliferating cells within the crypt in three dimensions (Barrett et al., 2015). Whole-mount proliferation staining of enteroids using EdU incorporation enables the researcher to view all proliferating cells within the enteroid as opposed to obtaining growth information in thin slices as would be seen with embedding and sectioning, ensuring a true representation of proliferation from the stem cell compartment to the terminally differentiated cells of the crypt. PMID- 29333476 TI - In vitro Flow Adhesion Assay for Analyzing Shear-resistant Adhesion of Metastatic Cancer Cells to Endothelial Cells. AB - Hematogenous metastasis is a primary cause of mortality from metastatic cancer. The shear-resistant adhesion of circulating tumor cells to the vascular endothelial cell surface under blood flow is an essential step in cell extravasation and further tissue invasion. This is similar to a process exploited by leukocytes for adhesion to inflamed blood vessels (leukocyte mimicry). The shear resistant adhesion is mediated by high affinity interactions between endothelial adhesion molecules and their counter receptor ligand expressed on circulating cells. Thus, weak interaction results in a rapid detachment of circulating cells from endothelium. Despite the critical role of vascular adhesion of cancer cells in hematogenous metastasis, our knowledge regarding this process has been limited due to the difficulty of mimicking dynamic flow conditions in vitro. In order to gain better insight into the shear-resistant adhesion of cancer cells to the endothelium, we developed a protocol for measuring the shear resistant adhesion of circulating tumor cells to endothelial cells under physiologic flow conditions by adapting a well established flow adhesion assay for inflammatory cells. This technique is useful to evaluate 1) the shear resistant adhesion competency of cancer cells and 2) the endothelial adhesion molecules necessary to support cancer cell adhesion (Kang et al., 2015). PMID- 29333477 TI - Notch Ligand Binding Assay Using Flow Cytometry. AB - Notch signaling is an evolutionary conserved signaling pathway that plays an indispensable role during development, and in the maintenance of homeostatic processes, in a wide variety of tissues (Kopan, 2012; Hori et al., 2013). The multifaceted roles of Notch signaling are stringently regulated at different levels. One of the most important aspects of regulation is the binding of different Notch ligands to each Notch receptor (NOTCH1-NOTCH4). Canonical ligands Delta or Serrate (in Drosophila), and Delta-like (DLL1 and DLL4) or Jagged (JAG1 and JAG2) (in mammals), are transmembrane glycoproteins. Ligands expressed on one cell bind to Notch receptors on an adjacent cell to induce Notch signaling. Glycosylation of Notch receptor extracellular domain by O-fucose and O-GlcNAc glycans is well established as critical regulators for Notch signaling strength (Stanley and Okajima, 2010; Haltom and Jafar-Nejad, 2015; Sawaguchi et al., 2017). In order to characterize Notch ligand binding to Notch receptors in isolated cells, we utilize Notch ligand extracellular domains tagged at the C terminus by a human Fc domain, and determine binding of fluorescent anti-Fc antibody by flow cytometry. PMID- 29333473 TI - Charge migration and charge transfer in molecular systems. AB - The transfer of charge at the molecular level plays a fundamental role in many areas of chemistry, physics, biology and materials science. Today, more than 60 years after the seminal work of R. A. Marcus, charge transfer is still a very active field of research. An important recent impetus comes from the ability to resolve ever faster temporal events, down to the attosecond time scale. Such a high temporal resolution now offers the possibility to unravel the most elementary quantum dynamics of both electrons and nuclei that participate in the complex process of charge transfer. This review covers recent research that addresses the following questions. Can we reconstruct the migration of charge across a molecule on the atomic length and electronic time scales? Can we use strong laser fields to control charge migration? Can we temporally resolve and understand intramolecular charge transfer in dissociative ionization of small molecules, in transition-metal complexes and in conjugated polymers? Can we tailor molecular systems towards specific charge-transfer processes? What are the time scales of the elementary steps of charge transfer in liquids and nanoparticles? Important new insights into each of these topics, obtained from state-of-the-art ultrafast spectroscopy and/or theoretical methods, are summarized in this review. PMID- 29333478 TI - A General Method for Intracellular Protein Delivery through 'E-tag' Protein Engineering and Arginine Functionalized Gold Nanoparticles. AB - In this protocol, we describe a method for direct cytosolic protein delivery that avoids endosomal entrapment of the delivered proteins. We achieved this by tagging the desired protein with an oligo glutamic acid tag (E-tag), and subsequently using carrier gold nanoparticles to deliver these E-tagged proteins. When E-tagged proteins and nanoparticles were mixed, they formed nanoassemblies, which got fused to cell membrane upon incubation and directly released the E tagged protein into cell cytosol. We used this method to deliver a wide variety of proteins with different sizes, charges, and functions in various cell lines (Mout et al., 2017). To use this protocol, the first step is to generate the required materials (gold nanoparticles, recombinant E-tagged proteins). Laboratory-synthesis of gold nanoparticles has been previously described (Yang et al., 2011). Desired E-tagged proteins can be cloned from the corresponding genes, and expressed and purified using standard laboratory procedures. We will use E tagged green fluorescent protein (GFP) as a reference protein here. Users can simply insert an E-tag into their protein of interest, at either terminus. To achieve maximum delivery efficiency, we suggest users testing different length of E-tags. For example, we inserted E = 0 to 20 (E0 means no E-tag insertion, and E20 means 20 glutamic acids insertion in a row) to most of the proteins we tested, and screened for optimal E-tagged length for highest delivery efficiency. E10-tagged proteins gave us the highest delivery efficiency for most of the proteins (except for Cas9, where E20 tag showed highest delivery efficiency). Once these materials are ready, it takes about ~10 min to make the E-tagged protein and nanoparticle nanoassemblies, which are immediately used for delivery. Complete delivery (~100% for GFP-E10) is achieved in less than 3 h. PMID- 29333479 TI - Oral Microbiome Characterization in Murine Models. AB - The oral microbiome has been implicated as a trigger for immune responsiveness in the oral cavity, particularly in the setting of the inflammatory disease periodontitis. The protocol presented here is aimed at characterizing the oral microbiome in murine models at steady state and during perturbations of immunity or physiology. Herein, we describe murine oral microbiome sampling procedures, processing of low biomass samples and subsequent microbiome characterization based on 16S rRNA gene sequencing. PMID- 29333480 TI - GPU-based Branchless Distance-Driven Projection and Backprojection. AB - Projection and backprojection operations are essential in a variety of image reconstruction and physical correction algorithms in CT. The distance-driven (DD) projection and backprojection are widely used for their highly sequential memory access pattern and low arithmetic cost. However, a typical DD implementation has an inner loop that adjusts the calculation depending on the relative position between voxel and detector cell boundaries. The irregularity of the branch behavior makes it inefficient to be implemented on massively parallel computing devices such as graphics processing units (GPUs). Such irregular branch behaviors can be eliminated by factorizing the DD operation as three branchless steps: integration, linear interpolation, and differentiation, all of which are highly amenable to massive vectorization. In this paper, we implement and evaluate a highly parallel branchless DD algorithm for 3D cone beam CT. The algorithm utilizes the texture memory and hardware interpolation on GPUs to achieve fast computational speed. The developed branchless DD algorithm achieved 137-fold speedup for forward projection and 188-fold speedup for backprojection relative to a single-thread CPU implementation. Compared with a state-of-the-art 32-thread CPU implementation, the proposed branchless DD achieved 8-fold acceleration for forward projection and 10-fold acceleration for backprojection. GPU based branchless DD method was evaluated by iterative reconstruction algorithms with both simulation and real datasets. It obtained visually identical images as the CPU reference algorithm. PMID- 29333481 TI - Theta sequences of grid cell populations can provide a movement-direction signal. AB - It has been proposed that path integration in mammals is performed by the convergence of internally generated speed and directional inputs onto grid cells. Although this hypothesis has been supported by the discovery that head direction, speed, and grid cells are intermixed within entorhinal cortex and by the recent finding that head-direction inputs are necessary for grid firing, many details on how grid cells are generated have remained elusive. For example, analysis of recording data suggests that substituting head direction for movement direction accrues errors that preclude the formation of grid patterns. To address this discrepancy, we propose that the organization of grid networks makes it plausible that movement-direction signals are an output from grid cells and that temporally precise grid cell sequences provide a robust directional signal to other spatial and directional cell types. PMID- 29333482 TI - Flexibility in the face of fear: Hippocampal-prefrontal regulation of fear and avoidance. AB - Generating appropriate defensive behaviors in the face of threat is essential to survival. Although many of these behaviors are 'hard-wired', they are also flexible. For example, Pavlovian fear conditioning generates learned defensive responses, such as conditioned freezing, that can be suppressed through extinction. The expression of extinguished responses is highly context-dependent, allowing animals to engage behavioral responses appropriate to the contexts in which threats are encountered. Likewise, animals and humans will avoid noxious outcomes if given the opportunity. In instrumental avoidance learning, for example, animals overcome conditioned defensive responses, including freezing, in order to actively avoid aversive stimuli. Recent work has greatly advanced understanding of the neural basis of these phenomena and has revealed common circuits involved in the regulation of fear. Specifically, the hippocampus and medial prefrontal cortex play pivotal roles in gating fear reactions and instrumental actions, mediated by the amygdala and nucleus accumbens, respectively. Because an inability to adaptively regulate fear and defensive behavior is a central component of many anxiety disorders, the brain circuits that promote flexible responses to threat are of great clinical significance. PMID- 29333483 TI - How heart rate variability affects emotion regulation brain networks. AB - Individuals with high heart rate variability tend to have better emotional well being than those with low heart rate variability, but the mechanisms of this association are not yet clear. In this paper, we propose the novel hypothesis that by inducing oscillatory activity in the brain, high amplitude oscillations in heart rate enhance functional connectivity in brain networks associated with emotion regulation. Recent studies using daily biofeedback sessions to increase the amplitude of heart rate oscillations suggest that high amplitude physiological oscillations have a causal impact on emotional well-being. Because blood flow timing helps determine brain network structure and function, slow oscillations in heart rate have the potential to strengthen brain network dynamics, especially in medial prefrontal regulatory regions that are particularly sensitive to physiological oscillations. PMID- 29333485 TI - Study of Incidence of Gross Urogenital Lesions and Abnormalities on Does Slaughtered at Nyagatare Slaughterhouse, Eastern Province, Rwanda. AB - Reproductive and urinary tract abnormalities are a cause of infertility, reproductive inefficiency, and economic losses in goats. The aim of this study was to investigate the occurrence and nature of reproductive and urinary tract abnormalities encountered in female goats slaughtered at Nyagatare abattoir in the Eastern Province of Rwanda. Reproductive and urinary organs from 369 female goat carcasses were opened by incision and then given a thorough macroscopic examination by visually inspecting and palpating for evidence of abnormalities. The results showed that there was an overall occurrence of 7.8% reproductive organ/tract abnormalities and 10.6% urinary organ/tract abnormalities. Ovarian hypoplasia was the reproductive abnormality with the highest overall occurrence (32.3%) and renal calculi were the urinary organ abnormality with the highest occurrence (38.1%). 95.2% of the reproductive organ/tract abnormalities observed usually result in infertility and 91.3% of the urinary organ/tract abnormalities observed result in economic losses through condemnation of kidneys at slaughter. The high incidence of the observed urinary organ/tract abnormalities represents a potential public health challenge. There was no significant difference in the occurrence of reproductive organ/tract abnormalities according to breed (p > 0.05, n = 31). There was also no significant difference in the occurrence of urinary organ abnormalities according to breed (p > 0.05, n = 42). PMID- 29333486 TI - Ethical Considerations When Delivering Behavior Analytic Services for Problem Behavior via Telehealth. AB - Delivery of healthcare services via telehealth has been growing in popularity, and work completed by behavior analytic researchers and practitioners have supported this trend. Behavior analysts at the University of Iowa Children's Hospital (UICH) developed a telehealth model of service delivery to build upon their already established in-clinic and in-home services. Results from their telehealth studies showed positive effects. Social functions were identified for most children, and problem behavior decreased by an average of 94.14%. Additionally, parent satisfaction was quite high, suggesting this mode of service delivery was acceptable to caregivers. Given the increasing empirical support for providing behavior analytic services via telehealth, careful consideration needs to be given to the numerous ethical issues involved in telehealth service delivery. The current article describes the telehealth service delivery model developed at UICH as well as the ethical issues considered at different points when delivering these telehealth services. Following these ethical considerations, implications for future research and clinical practice are discussed. PMID- 29333484 TI - Approaching the third decade of paediatric palliative oncology investigation: historical progress and future directions. AB - Paediatric palliative care (PPC) endeavours to alleviate the suffering and improve the quality of life of children with serious illnesses and their families. In the past two decades since WHO defined PPC and called for its inclusion in paediatric oncology care, rigorous investigation has provided important insights. For example, the first decade of research focused on end-of life experiences of the child and the family, underscoring the high prevalence of symptom burden, the barriers to parent-provider concordance with regards to prognosis, as well as the need for bereavement supports. The second decade expanded PPC oncology investigation to include the entire cancer continuum and the voices of patients. Other studies identified the need for support of parents, siblings, and racial and ethnic minority groups. Promising interventions designed to improve outcomes were tested in randomised clinical trials. Future research will build on these findings and pose novel questions about how to continue to reduce the burdens of paediatric cancer. PMID- 29333487 TI - Activation of the Medial Prefrontal Cortex Reverses Cognitive and Respiratory Symptoms in a Mouse Model of Rett Syndrome. AB - Rett syndrome (RTT) is a severe neurodevelopmental disorder caused by loss-of function mutations in the gene encoding methyl-CpG-binding protein 2 (MeCP2; Amir et al., 1999), a transcriptional regulatory protein (Klose et al., 2005). Mouse models of RTT (Mecp2 mutants) exhibit excitatory hypoconnectivity in the medial prefrontal cortex (mPFC; Sceniak et al., 2015), a region critical for functions that are abnormal in RTT patients, ranging from learning and memory to regulation of visceral homeostasis (Riga et al., 2014). The present study was designed to test the hypothesis that increasing the activity of mPFC pyramidal neurons in heterozygous female Mecp2 mutants (Hets) would ameliorate RTT-like symptoms, including deficits in respiratory control and long-term retrieval of auditory conditioned fear. Selective activation of mPFC pyramidal neurons in adult animals was achieved by bilateral infection with an AAV8 vector expressing excitatory hm3D(Gq) DREADD (Designer Receptors Exclusively Activated by Designer Drugs) (Armbruster et al., 2007) under the control of the CamKIIa promoter. DREADD activation in Mecp2 Hets completely restored long-term retrieval of auditory conditioned fear, eliminated respiratory apneas, and reduced respiratory frequency variability to wild-type (Wt) levels. Reversal of respiratory symptoms following mPFC activation was associated with normalization of Fos protein levels, a marker of neuronal activity, in a subset of brainstem respiratory neurons. Thus, despite reduced levels of MeCP2 and severe neurological deficits, mPFC circuits in Het mice are sufficiently intact to generate normal behavioral output when pyramidal cell activity is increased. These findings highlight the contribution of mPFC hypofunction to the pathophysiology of RTT and raise the possibility that selective activation of cortical regions such as the mPFC could provide therapeutic benefit to RTT patients. PMID- 29333488 TI - Dopamine Development in the Mouse Orbital Prefrontal Cortex Is Protracted and Sensitive to Amphetamine in Adolescence. AB - The prefrontal cortex (PFC) is divided into subregions, including the medial and orbital prefrontal cortices. Dopamine connectivity in the medial PFC (mPFC) continues to be established throughout adolescence as the result of the continuous growth of axons that innervated the nucleus accumbens (NAcc) prior to adolescence. During this period, dopamine axons remain vulnerable to environmental influences, such as drugs used recreationally by humans. The developmental trajectory of the orbital prefrontal dopamine innervation remains almost completely unstudied. Nonetheless, the orbital PFC (oPFC) is critical for some of the most complex functions of the PFC and is disrupted by drugs of abuse, both in adolescent humans and rodents. Here, we use quantitative neuroanatomy, axon-initiated viral-vector recombination, and pharmacology in mice to determine the spatiotemporal development of the dopamine innervation to the oPFC and its vulnerability to amphetamine in adolescence. We find that dopamine innervation to the oPFC also continues to increase during adolescence and that this increase is due to the growth of new dopamine axons to this region. Furthermore, amphetamine in adolescence dramatically reduces the number of presynaptic sites on oPFC dopamine axons. In contrast, dopamine innervation to the piriform cortex is not protracted across adolescence and is not impacted by amphetamine exposure during adolescence, indicating that dopamine development during adolescence is a uniquely prefrontal phenomenon. This renders these fibers, and the PFC in general, particularly vulnerable to environmental risk factors during adolescence, such as recreational drug use. PMID- 29333489 TI - Degradable acetalated dextran microparticles for tunable release of an engineered hepatocyte growth factor fragment. AB - Injectable biomaterials are promising as new therapies to treat myocardial infarction (MI). One useful property of biomaterials is the ability to protect and sustain release of therapeutic payloads. In order to create a platform for optimizing the release rate of cardioprotective molecules we utilized the tunable degradation of acetalated dextran (AcDex). We created microparticles with three distinct degradation profiles and showed that the consequent protein release profiles could be modulated within the infarcted heart. This enabled us to determine how delivery rate impacted the efficacy of a model therapeutic, an engineered hepatocyte growth factor fragment (HGF-f). Our results showed that the cardioprotective efficacy of HGF-f was optimal when delivered over three days post-intramyocardial injection, yielding the largest arterioles, fewest apoptotic cardiomyocytes bordering the infarct and the smallest infarcts compared to empty particle treatment four weeks after injection. This work demonstrates the potential of using AcDex particles as a delivery platform to optimize the time frame for delivering therapeutic proteins to the heart. PMID- 29333490 TI - Inhibition of Bacterial Adhesion on Nanotextured Stainless Steel 316L by Electrochemical Etching. AB - Bacterial adhesion to stainless steel 316L (SS316L), which is an alloy typically used in many medical devices and food processing equipment, can cause serious infections along with substantial healthcare costs. This work demonstrates that nanotextured SS316L surfaces produced by electrochemical etching effectively inhibit bacterial adhesion of both Gram-negative Escherichia coli and Gram positive Staphylococcus aureus, but exhibit cytocompatibility and no toxicity toward mammalian cells in vitro. Additionally, the electrochemical surface modification on SS316L results in formation of superior passive layer at the surface, improving corrosion resistance. The nanotextured SS316L offers significant potential for medical applications based on the surface structure induced reduction of bacterial adhesion without use of antibiotic or chemical modifications while providing cytocompatibility and corrosion resistance in physiological conditions. PMID- 29333491 TI - Multifunctional Bioreactor System for Human Intestine Tissues. AB - The three-dimensional (3D) cultivation of intestinal cells and tissues in dynamic bioreactor systems to represent in vivo intestinal microenvironments is essential for developing regenerative medicine treatments for intestinal diseases. We have previously developed in vitro human intestinal tissue systems using a 3D porous silk scaffold system with intestinal architectures and topographical features for the adhesion, growth, and differentiation of intestinal cells under static culture conditions. In this study, we designed and fabricated a multifunctional bioreactor system that incorporates pre-epithelialized 3D silk scaffolds in a dynamic culture environment for in vitro engineering of human intestine tissues. The bioreactor system allows for control of oxygen levels in perfusion fluids (aerobic simulated intestinal fluid (SIF), microaerobic SIF, and anaerobic SIF), while ensuring control over the mechanical and chemical microenvironments present in native human intestines. The bioreactor system also enables 3D cell culture with spatial separation and cultivation of cocultured epithelial and stromal cells. Preliminary functional analysis of tissues housed in the bioreactor demonstrated that the 3D tissue constructs survived and maintained typical phenotypes of intestinal epithelium, including epithelial tight junction formation, intestinal biomarker expression, microvilli formation, and mucus secretion. The unique combination of a dynamic bioreactor and 3D intestinal constructs offers utility for engineering human intestinal tissues for the study of intestinal diseases and discovery options for new treatments. PMID- 29333492 TI - Assessment of Crystal Morphology on Uptake, Particle Dissolution, and Toxicity of Nanoscale Titanium Dioxide on Artemia salina. AB - Knowledge of nanomaterial toxicity is critical to avoid adverse effects on human and environment health. In this study, the influences of crystal morphology on physico-chemical and toxic properties of nanoscale TiO2 (n-TiO2) were investigated. Artemia salina were exposed to anatase, rutile and mixture polymorphs of n-TiO2 in seawater. Short-term (24 h) and long-term (96 h) exposures were conducted in 1, 10 and 100 mg/L suspensions of n-TiO2 in the presence and absence of food. Anatase form had highest accumulation followed by mixture and rutile. Presence of food greatly reduced accumulation. n-TiO2 dissolution was not significant in seawater (p<0.05) nor was influenced from crystal structure. Highest toxic effects occurred in 96h exposure in the order of anatase > mixture > rutile. Mortality and oxidative stress levels increased with increasing n-TiO2 concentration and exposure time (p<0.05). Presence of food in the exposure medium alleviated the oxidative stress, indicating that deprivation from food could promote toxic effects of n-TiO2 under long-term exposure. PMID- 29333493 TI - A quality improvement project aimed at adapting primary care to ensure the delivery of evidence-based psychotherapy for adult anxiety. AB - Primary care patients frequently present with anxiety with prevalence ratios up to 30%. Brief cognitive-behavioural therapy (CBT) has been shown in meta-analytic studies to have a strong effect size in the treatment of anxiety. However, in surveys of anxious primary care patients, nearly 80% indicated that they had not received CBT. In 2010, a model of CBT (Coordinated Anxiety Learning and Management (CALM)) adapted to primary care for adult anxiety was published based on results of a randomised controlled trial. This project aimed to integrate an adaptation of CALM into one primary care practice, using results from the published research as a benchmark with the secondary intent to spread a successful model to other practices. A quality improvement approach was used to translate the CALM model of CBT for anxiety into one primary care clinic. Plan-Do Study-Act steps are highlighted as important steps towards our goal of comparing our outcomes with benchmarks from original research. Patients with anxiety as measured by a score of 10 or higher on the Generalized Anxiety Disorder 7 item scale (GAD-7) were offered CBT as delivered by licensed social workers with support by a PhD psychologist. Outcomes were tracked and entered into an electronic registry, which became a critical tool upon which to adapt and improve our delivery of psychotherapy to our patient population. Challenges and adaptations to the model are discussed. Our 6-month response rates on the GAD-7 were 51%, which was comparable with that of the original research (57%). Quality improvement methods were critical in discovering which adaptations were needed before spread. Among these, embedding a process of measurement and data entry and ongoing feedback to patients and therapists using this data are critical step towards sustaining and improving the delivery of CBT in primary care. PMID- 29333494 TI - Ensuring adequate vascular access in patients with major trauma: a quality improvement initiative. AB - Ensuring adequate vascular access in major trauma patients prior to decompensative physiological processes is crucial to patient outcomes. Most protocols suggest achieving two 18-gauge or larger intravenous lines immediately in patients with major trauma. We discuss a quality improvement approach to ensure that >90% of patients with major trauma (as defined by an injury severity score >=12) at a level one trauma centre receive timely and adequate fluid access. Applying Donabedian principles for process improvement, we used the Alberta Trauma Registry to perform a 4-month chart audit on patients with major trauma at the University of Alberta Hospital. Background data were supported with a formal root cause analysis to outline the problems and generate plan, do, study and act (PDSA) rapid change cycles. These PDSA cycles were then implemented over the course of 2 months to alter system and personnel barriers to care, thereby ensuring that patients with major trauma received adequate vascular access for fluid resuscitation. This was followed by a 6-month sustainability assessment. The percentage of patients with major trauma who received adequate fluid access went from a mean of 55.5% to >90% in 2 months and was sustained at or greater than 90% for 6 consecutive months. The formal application of quality improvement processes is uncommon in trauma care but is much needed to ensure success and sustainability of quality initiatives. Planning including engagement and prechange awareness is crucial to staff engagement, change, and sustainment. Formal quality improvement and change management techniques can elicit rapid and sustainable changes in trauma care. We provide a framework for change to increase compliance with fluid access in patients with major trauma. PMID- 29333495 TI - Integrating prevention and health promotion in a London prison. AB - Many people enter prison with poor health from a background of deprivation and with unhealthy lifestyle habits, yet spending time in prisons is often actively detrimental to health. There is therefore a clear value in providing high-quality health promotion services in prisons that are effective at reaching those who need support to improve their lifestyle. The health promotion service at HMP Brixton provides a health trainers clinic to address lifestyle issues but found that it was sometimes challenging to identify appropriate patients and that the service was inefficient as a result. Analysis of our referral sources suggested that taking steps to increase the proportion of referrals made during screening and other clinics might lead to more appropriate and engaged patients. In this study, we set out to use quality improvement methods to increase referral from these sources. This involved improvements to the processes involved in delivering National Health Service Health Checks that were the primary source of referrals for health trainers and by improving links between the health trainer team and other clinicians. The changes were successful in increasing referrals from these sources. This work was completed during a period of exceptional disruption in the prison service and is relevant to secure healthcare sites that aim to ensure prevention activities are efficient and targeted. PMID- 29333496 TI - Improving the wait time to consultation at the emergency department. AB - Prolonged wait times at the emergency department (ED) are associated with increased morbidity and mortality, and decreased patient satisfaction. Reducing wait times at the ED is challenging. The objective of this study is to determine if the implementation of a series of interventions would help decrease the wait time to consultation (WTC) for patients at the ED within 6 months. Interventions include creation of a common board detailing work output, matching manpower to patient arrivals and adopting a team-based model of care. A retrospective analysis of the period from January 2015 to May 2016 was undertaken to define baseline duration for WTC. Rapid PDSA (Plan, Do, Study, Act) cycles were used to implement a series of interventions, and changes in wait time were tracked, with concurrent patient load, rostered manpower and number of admissions from ED. Results of the interventions were tracked from 1 October 2016 to 30 April 2017. There was improvement in WTC within 6 months of initiation of interventions. The improvements demonstrated appeared consistent and sustained. The average 95th centile WTC decreased by 38 min to 124 min, from the baseline duration of 162 min. The median WTC improved to 21 min, compared with a baseline timing of 24 min. The improvements occurred despite greater patient load of 4317 patients per month, compared with baseline monthly average of 4053 patients. There was no increase in admissions from ED and no change in the amount of ED manpower over the same period. We demonstrate how implementation of low-cost interventions, enabling transparency, equitable workload and use of a team-based care model can help to bring down wait times for patients. Quality improvement efforts were sustained by employing a data-driven approach, support from senior clinicians and providing constant feedback on outcomes. PMID- 29333497 TI - Work efficiency improvement of >90% after implementation of an annual inpatient blood products administration consent form. AB - Paediatric haematology, oncology and bone marrow transplant (BMT) patients frequently require transfusion of blood products. Our institution required a new transfusion consent be obtained every admission. The objectives of this project were to: revise inpatient blood products consent form to be valid for 1 year, decrease provider time spent consenting from 15 to <5 min per admission, and improve provider frustration with the consent process. Over 6 months, we determined the average number of hospitalisations requiring transfusions in a random sampling of haematology/oncology/BMT inpatients. We surveyed nurses and providers regarding frustration levels and contact required regarding consents. Four and 12 months after implementation of the annual consent, providers and nurses were resurveyed, and new inpatient cohorts were assessed. Comparison of preintervention and postintervention time data allowed calculation of provider time reduction, a surrogate measure of improved work efficiency. Prior to the annual consent, >33 hours were spent over 6 months obtaining consent on 40 patients, with >19 hours spent obtaining consent when no transfusions were administered during admission. Twelve months after annual consent implementation, 97.5% (39/40) of analysed patients had a completed annual blood products transfusion consent and provider work efficiency had improved by 94.6% (>30 hours). Although several surveyed variables improved following annual consent implementation, provider frustration with consent process remained 6 out of a max score of 10, the same level as prior to the intervention. Development of an annual inpatient blood products consent form decreased provider time from 15 to <1 min per admission, decreased consenting numbers and increased work efficiency by >90%. PMID- 29333498 TI - Impact of pharmacist-led antibiotic stewardship program in a PICU of low/middle income country. PMID- 29333499 TI - Sick Note to Fit Note: one trust's project to improve usage by hospital clinicians. AB - Introduction: In April 2010, the government introduced a new Statement of Fitness to Work or 'Fit Note' for patients requiring time off of work or adaptations to their work due to illness. Responsibility to issue these documents has shifted from primary to secondary care. Hospital clinicians are required to issue for inpatients and for outpatients where clinical responsibility has not been taken over by the general practitioner (GP). However, awareness of this change is lacking. Misdirecting patients to their GP for the sole purpose of receiving a 'Fit Note' is an unnecessary use of appointment time and negatively impacts on patients. King's College Hospital NHS Trust receives a number of quality alerts from primary care regarding this issue. Methods: A trust-wide educational initiative was designed and implemented to increase staff awareness of Fit Notes and their correct usage in order to reduce the number of patients being misdirected to their GP to obtain one. Interventions included direct staff engagement, a trust-wide promotional campaign and creation of an electronic version of the document. Results: Uptake of the electronic version of the Fit Note has steadily increased and there has been a fall in the number of quality alerts received by the trust. However, staff awareness on the whole remains low. Conclusions: Patients being misdirected to their general practice for Fit Notes is an important issue and one on which the baseline level of awareness among hospital clinicians is low. Challenges during this intervention have been in penetrating a trust of this size and getting the message across to staff. However, digitising the Fit Note can help to increase its use. PMID- 29333500 TI - Improving the Written Medical Handover. AB - The handover of large numbers of medical patients, during on call periods when staffing levels are reduced, is a challenge for all acute medical services. At the Royal Cornwall Hospital, a large district general hospital, we identified that foundation doctors were reviewing medical inpatients during weekend on call periods with limited written handover information. We chose to address this problem by developing an intervention, a weekend handover sticker, and piloting it. We used the review of documentation to measure improvement and feedback from users to assess the processes involved. Use of the weekend handover form improved the written communication between weekday and weekend teams. The number of weekend plans documented in the notes increased from 15% to 84% and the provision of a patient summary within the last 7 days increased from 26% to 94%. The feedback from users confirmed it was a useful intervention and 100% (15/15) of doctors and nurses responded positively to the question "Do you think the weekend sticker should be introduced and used at the weekend for all medical patients?" The feedback also identified concerns regarding additional workload for weekday ward staff and this has led to ongoing work to try and ensure that the weekend handover form continues to be used effectively to maintain an improved level of written handover information for on call staff. While we have not included a direct measure of patient care, we hope that by improving the quality of written handover information we are acting to ensure patient information is shared effectively, with likely positive impact on patient care. PMID- 29333501 TI - Feasibility of conducting intradermal vaccination campaign with inactivated poliovirus vaccine using Tropis intradermal needle free injection system, Karachi, Pakistan. AB - Background: Administration of intradermal fractional dose of inactivated poliovirus vaccine (fIPV) has proven to be safe and immunogenic; however, its intradermal application using needle and syringe is technically difficult and requires trained personnel. Methods: We assessed feasibility of conducting an intradermal fIPV campaign in polio high risk neighborhood of Karachi using Tropis needle-free injector. During the one-day fIPV campaign, we measured average "application time" to administer fIPV with Tropis, collected ergonomic information and measured vaccine wastage. Results: Eleven vaccinator teams, after two-day training, immunized 582 children between 4 months and 5 years of age. Average "application time" ranged from 35-75 seconds; the "application time" decreased with the number of children vaccinated from 68 to 38 seconds between 1st and 30th child. 10/11 (91%) vaccinator teams found no ergonomic issues; 1/11 (9%) assessed that it was not easy to remove air bubbles when filling the device. There was 0% vaccine loss reported. No adverse events following immunizations were reported. Interpretation: We demonstrated that it is feasible, safe and efficient to use Tropis for the administration of fIPV in a campaign setting. PMID- 29333502 TI - Unresectable cutaneous squamous cell carcinoma of the forehead with MLH1 mutation showing dramatic response to Programmed Cell Death Protein 1 Inhibitor Therapy. AB - Treatment of refractory, unresectable cutaneous squamous cell carcinoma presents a great challenge in head and neck oncology with poor prognosis. Prior case reports have shown off-label pembrolizumab, a programed cell death receptor antagonist, can be effective in unresectable cutaneous squamous cell carcinoma. Furthermore, prior reports have suggested enhanced efficacy when high mutational burden is present. In this study we present a severe case of unresectable cutaneous squamous cell carcinoma invading the orbit and cavernous sinus with documented tumor MLH1 mutation. The patient had a complete response to palliative, off-label pembrolizumab therapy. PMID- 29333503 TI - The Effect of a Vegan versus AHA DiEt in Coronary Artery Disease (EVADE CAD) trial: study design and rationale. AB - Background: Multiple studies demonstrate the benefit of a vegan diet on cardiovascular risk factors when compared to no intervention or usual dietary patterns. The aim of this study is to evaluate the effect of a vegan diet versus the American Heart Association (AHA)-recommended diet on inflammatory and glucometabolic profiles in patients with angiographically defined coronary artery disease (CAD). Study Design: This study is a randomized, open label, blinded end point trial of 100 patients with CAD as defined by >=50% diameter stenosis in a coronary artery >=2 mm in diameter on invasive angiography. Participants are randomized to 8 weeks of either a vegan or AHA-recommended diet (March 2014 and February 2017). Participants are provided weekly groceries that adhere to the guidelines of their diet. The primary endpoint is high sensitivity C-reactive concentrations. Secondary endpoints include anthropometric data, other markers of inflammation, lipid parameters, glycemic markers, endothelial function, quality of life data, and assessment of physical activity. Endpoints are measured at each visit (baseline, 4 weeks, and 8 weeks). Dietary adherence is measured by two weekly 24-hour dietary recalls, a 4-day food record during the week prior to each visit, and both plasma and urine levels of trimethylamine-N-oxide at each visit. Conclusion: This study is the first to comprehensively assess multiple indices of inflammation and glucometabolic profile in a rigorously conducted randomized trial of patients with CAD on a vegan versus AHA-recommended diet. PMID- 29333504 TI - Community-based physical activity as adjunctive smoking cessation treatment: Rationale, design, and baseline data for the Lifestyle Enhancement Program (LEAP) randomized controlled trial. AB - Despite advances in behavioral and pharmacological treatment for tobacco use and dependence, quit rates remain suboptimal. Increasing physical activity has shown some promise as a strategy for improving cessation outcomes. However, initial efficacy studies focused on intensive, highly structured exercise programs that may not be applicable to the general population of smokers. We describe the rationale and study design and report baseline participant characteristics from the Lifestyle Enhancement Program (LEAP), a two-group, randomized controlled trial. Adult smokers who engaged in low levels of leisure time physical activity were randomly assigned to treatment conditions consisting of an individualized physical activity intervention delivered by health fitness instructors in community-based exercise facilities or an equal contact wellness control. All participants received standard cognitive behavioral smoking cessation counseling combined with nicotine replacement therapy. The primary outcomes are seven-day point prevalence abstinence at seven weeks, six- and 12 months. Secondary outcomes include self-reported physical activity, dietary intake, body mass index, waist circumference, percent body fat, and nicotine withdrawal symptoms. Participants consist of 392 sedentary smokers (mean [standard deviation] age = 44.6 [10.2] = years; 62% female; 31% African American). Results reported here provide information regarding experiences recruiting smokers willing to change multiple health behaviors including smoking and physical activity. PMID- 29333505 TI - Toxicological Implications of Released Particulate Matter during Thermal Decomposition of Nano-Enabled Thermoplastics. AB - Nano-enabled thermoplastics are part of the growing market of nano-enabled products (NEPs) that have vast utility in several industries and consumer goods. The use and disposal of NEPs at their end of life has raised concerns about the potential release of constituent engineered nanomaterials (ENMs) during thermal decomposition and their impact on environmental health and safety. To investigate this issue, industrially relevant nano-enabled thermoplastics including polyurethane, polycarbonate, and polypropylene containing carbon nanotubes (0.1 and 3% w/v, respectively), polyethylene containing nanoscale iron oxide (5% w/v), and ethylene vinyl acetate containing nanoscale titania (2 and 5% w/v) along with their pure thermoplastic matrices were thermally decomposed using the recently developed lab based Integrated Exposure Generation System (INEXS). The life cycle released particulate matter (called LCPM) was monitored using real time instrumentation, size fractionated, sampled, extracted and prepared for toxicological analysis using primary small airway epithelial cells to assess potential toxicological effects. Various cellular assays were used to assess reactive oxygen species and total glutathione as measurements of oxidative stress along with mitochondrial function, cellular viability, and DNA damage. By comparing toxicological profiles of LCPM released from polymer only (control) with nano-enabled LCPM, potential nanofiller effects due to the use of ENMs were determined. We observed associations between NEP properties such as the percent nanofiller loading, host matrix, and nanofiller chemical composition and the physico-chemical properties of released LCPM, which were linked to biological outcomes. More specifically, an increase in percent nanofiller loading promoted a toxicological response independent of increasing LCPM dose. Importantly, differences in host matrix and nanofiller composition were shown to enhance biological activity and toxicity of LCPM. This work highlights the importance of assessing the toxicological properties of LCPM and raises environmental health and safety concerns of nano-enabled products at their end of life during thermal decomposition/incineration. PMID- 29333507 TI - Platinum open access journal in urology. PMID- 29333508 TI - Role of cytoreductive nephrectomy in the targeted therapy era: A systematic review and meta-analysis. AB - Purpose: To determine the effectiveness and harm of cytoreductive nephrectomy versus no intervention in patients with metastatic renal carcinoma who undergo targeted therapy to improve overall survival. Materials and Methods: A search strategy was conducted in the MEDLINE, CENTRAL, Embase, HTA, DARE, NHS, and LILACS databases. Searches were also conducted for unpublished literature through references from relevant articles identified through the search, conferences, thesis databases, OpenGrey, Google Scholar, and clinicaltrials.gov, among others. Studies were included without language restrictions. The risk of bias assessment was made by using a modified Cochrane Collaboration tool. A meta-analysis of fixed effects was conducted. The expected outcomes were overall survival, quality of life, adverse effects, mortality, and progression- free survival. The measure of the effect was the hazard ratio (HR) with a 95% confidence interval (CI). The planned comparison was cytoreductive nephrectomy versus no intervention. Results: A total of 22,507 patients were found among seven studies. Seven studies were included in the qualitative analysis (eight publications) and five in the quantitative analysis for overall survival. One study reported progression-free survival and one reported targeted therapy toxicities. A low risk of bias was shown for most of the study items. The HR for overall survival was 0.58 (95% CI, 0.50 to 0.65) favoring cytoreductive nephrectomy compared with no intervention. Conclusions: Cytoreductive nephrectomy is effective for improving overall survival in patients with metastatic renal carcinoma who undergo targeted therapy compared with no intervention. PMID- 29333509 TI - Rate and association of lower urinary tract infection with recurrence after transurethral resection of bladder tumor. AB - Purpose: To evaluate the rate of pyuria and bacteriuria after transurethral resection of bladder tumor (TURBT). Materials and Methods: We retrospectively evaluated data obtained from 363 patients who underwent TURBT between October 2012 and December 2013 at Seoul National University Hospital. Urinalysis and urine culture were assessed at 3, 6, 12, and 24 months postoperatively. Primary endpoint was the rate of bacteriuria (>=105/mL in a midstream) and pyuria (white blood cells >=5/high-power field). Results: We analyzed 306 patients who were eligible for the study. Pyuria was present in 23.5% of patients in the 3rd postoperative month and in 31.7% of patients in the 24th postoperative month. Bacteriuria was present in 1.3% of patients in the 3rd postoperative month and in 2.6% of patients in the 24th postoperative month. Among urothelial carcinoma patients (n=220), 24.1% showed pyuria and 1.8% showed bacteriuria at the 3rd postoperative month. We found that 31.8% showed pyuria and 3.2% showed bacteriuria at the 24th postoperative month. There was no significant difference in the rate of pyuria and bacteriuria between the intravesical treatment group and the no-treatment group. Multivariate analysis demonstrated that pyuria in the 3rd postoperative month (odd ratio [OR], 2.254; p=0.039), tumor multiplicity (OR, 3.331; p=0.001), and the absence of intravesical treatment (OR, 4.927; p=0.001) increases the risk of tumor recurrence. Conclusions: A significant proportion of patients showed pyuria after TURBT during the follow-up period. Additionally, presence of pyuria in the short-term follow-up period after TURBT constitutes a risk factor for recurrence of bladder cancer. PMID- 29333510 TI - Factors associated with testosterone recovery after androgen deprivation therapy in patients with prostate cancer. AB - Purpose: We investigated factors affecting testosterone recovery after androgen deprivation therapy (ADT) withdrawal in patients with prostate cancer. Materials and Methods: The medical records of patients who underwent radical prostatectomy with ADT were retrospectively reviewed. In all, 221 patients were included in the analysis. Testosterone recovery was defined as supra-castration (SC) (testosterone levels in serum >50 ng/dL) or out of hypogonadism (OH) (>300 ng/dL) after ADT withdrawal. Kaplan-Meier analyses were used to estimate testosterone recovery after ADT cessation. Cox regression analyses were used to determine the factors affecting the recovery of testosterone. Results: After ADT, 206 patients (93.2%) recovered to the SC level and 122 patients (55.2%) recovered to the OH level. Patients treated with ADT for <=18 months recovered to OH in a mean of 6.8 months (74.6%), but patients treated with ADT for >18 months recovered in a mean of 9.7 months (27.5%). In multivariate analyses, age (hazard ratio [HR], 0.915; p<0.001), serum level of sex hormone-binding globulin (SHBG) (HR, 1.015; p=0.002), initial testosterone level (HR, 1.002; p=0.002), and ADT duration (HR, 0.915; p<0.001) were associated with recovery to the OH level after ADT withdrawal, and hypertension (HR, 0.697; p=0.029) and duration of ADT (HR, 0.979; p=0.012) were significantly associated with recovery to SC. Conclusions: In patients treated with ADT for <=18 months, testosterone recovers to the OH level more often and faster after ADT cessation. Age, SHBG level, initial testosterone level, and ADT duration are associated with testosterone recovery. PMID- 29333511 TI - Evaluating the importance of different computed tomography scan-based factors in predicting the outcome of extracorporeal shock wave lithotripsy for renal stones. AB - Purpose: To evaluate the impact of various computed tomography scan-based parameters of renal stones on the outcome of extracorporeal shock wave lithotripsy (ESWL). Materials and Methods: We conducted a retrospective study of patients who underwent ESWL for renal stones (sized 5-20 mm) from January 2013 to December 2016. We evaluated body mass index, location of the stone, skin-to-stone distance (SSD), stone attenuation value (SAV), stone diameter, Hounsfield density, stone area, and stone volume. Statistical analysis was done and significance was confirmed by multivariate logistic regression analysis. Results: Of the 203 patients 122 (60.1%) had successful clearance of the stone. The presence of a double J stenting, a lower pole location, a higher SAV, higher Hounsfield density, larger stone area, larger stone diameter, and higher stone volume were negative predictors of ESWL outcome. When these parameters were analyzed with multivariate logistic regression analysis, stone location, SSD, and SAV were the only significant independent predictors of the outcome of ESWL. Conclusions: Stone location, SSD, and SAV are reliable and strong predictors of ESWL outcome for the treatment of renal stones. PMID- 29333512 TI - Fourier transform infrared spectroscopy for analysis of kidney stones. AB - Purpose: To compare the results of a chemical method of kidney stone analysis with the results of Fourier transform infrared (FT-IR) spectroscopy. Materials and Methods: Kidney stones collected between June and October 2015 were simultaneously analyzed by chemical and FT-IR methods. Results: Kidney stones (n=449) were collected from patients from 1 to 81 years old. Most stones were from adults, with only 11.5% from children (aged 3-16 years) and 1.5% from children aged <2 years. The male to female ratio was 4.6. In adults, the calcium oxalate stone type, calcium oxalate monohydrate (COM, n=224), was the most common crystal, followed by uric acid and calcium oxalate dihydrate (COD, n=83). In children, the most frequently occurring type was predominantly COD (n=21), followed by COM (n=11), ammonium urate (n=10), carbonate apatite (n=6), uric acid (n=4), and cystine (n=1). Core composition in 22 stones showed ammonium urate (n=2), COM (n=2), and carbonate apatite (n=1) in five stones, while uric acid crystals were detected (n=13) by FT-IR. While chemical analysis identified 3 stones as uric acid and the rest as calcium oxalate only. Agreement between the two methods was moderate, with a kappa statistic of 0.57 (95% confidence interval, 0.5-0.64). Disagreement was noted in the analysis of 77 stones. Conclusions: FT-IR analysis of kidney stones can overcome many limitations associated with chemical analysis. PMID- 29333513 TI - Can feeling of incomplete bladder emptying reflect significant postvoid residual urine? Is it reliable as a symptom solely? AB - Purpose: The main objective of this study was to reveal the relationship between lower urinary tract symptoms (LUTS) and post-void residual (PVR) urine volume. Materials and Methods: Between October 2014 and February 2015, older than 40 years patients were included in this study. Volunteers filled out a questionnaire consisted of demographic characteristics, comorbidities, medications, history of surgery and LUTS. Volunteers were undergone PVR measurement with transabdominal ultrasonography. The relationship between symptoms, demographic characteristics and PVR were analyzed. Results: A total of 939 patients (756 men and 183 women) were enrolled in this study. There was a positive correlation between the sensation of incomplete bladder emptying and PVR volume in all age groups of women (p=0.0001). However such a relationship was found only over the age of 60 in the subgroup analysis of men (p=0.001). PVR volume increased in men by age (0.65 mL per year of age, p=0.011). In men, voiding symptoms and urgency were associated with a high PVR volume. In women, storage and voiding symptoms (except slow stream and terminal dribble) did not correlate with PVR volume. Conclusions: Our study showed that all men over the age of 60 years and all women with the complaint of feeling of incomplete emptying should undergone PVR measurement. Women with the complaint of poor stream and men mainly with voiding symptoms are other candidates in whom PVR measurement would be considered as an important tool in the clinical management and follow-up. PMID- 29333514 TI - What is the fate of artificial urinary sphincters among men undergoing repetitive bladder cancer treatment? AB - Purpose: Functional characteristics and durability of the artificial urinary sphincter (AUS) among patients who develop bladder cancer has been poorly characterized. We sought to evaluate AUS outcomes among patients subsequently diagnosed with bladder cancer, in order to describe device survivability when subject to diagnostic and therapeutic procedures such as cystoscopy, transurethral resection, and cystectomy. Materials and Methods: We retrospectively reviewed 1,803 male patients treated with AUS surgery at a single institution between 1983-2014. We describe AUS device outcomes among patients undergoing surveillance and treatment for bladder cancer. Results: Following AUS placement, 14 (0.8%) patients were subsequently diagnosed with and treated for bladder cancer and 4 patients with bladder cancer undergoing treatment and screening, subsequently received AUS placement. The median follow-up from device placement was 7.2 years (interquartile range [IQR], 2.8-11.5), and the median time from AUS placement to bladder cancer diagnosis was 6 (IQR, 0-9). There were a total of 8 primary and 1 secondary devices failures. Despite a median of 2 diagnostic cystoscopies (IQR, 1-6) and 0 bladder tumor resections (IQR, 0-0) per patient following device implantation, only 1 (5.6%) patient experienced an iatrogenic erosion related to urethral manipulation. Among those undergoing cystectomy (n=4), 1 device was left in situ without complication. Conclusions: Bladder cancer surveillance and treatment with an AUS device in place appears to confer minimal additional risk to AUS survival. Careful attention should be given to device deactivation and use of the smallest caliber instruments available to minimize the risk of iatrogenic urethral erosion. PMID- 29333506 TI - Murine Models of Heart Failure with Preserved Ejection Fraction: a "Fishing Expedition". AB - Heart failure with preserved ejection fraction (HFpEF) is characterized by signs and symptoms of HF in the presence of a normal left ventricular (LV) ejection fraction (EF). Despite accounting for up to 50% of all clinical presentations of HF, the mechanisms implicated in HFpEF are poorly understood, thus precluding effective therapy. The pathophysiological heterogeneity in the HFpEF phenotype also contributes to this disease and likely to the absence of evidence-based therapies. Limited access to human samples and imperfect animal models that completely recapitulate the human HFpEF phenotype have impeded our understanding of the mechanistic underpinnings that exist in this disease. Aging and comorbidities such as atrial fibrillation, hypertension, diabetes and obesity, pulmonary hypertension and renal dysfunction are highly associated with HFpEF. Yet, the relationship and contribution between them remains ill-defined. This review discusses some of the distinctive clinical features of HFpEF in association with these comorbidities and highlights the advantages and disadvantage of commonly used murine models, used to study the HFpEF phenotype. PMID- 29333515 TI - Changes in autonomic nervous system activity after treatment with alpha-blocker in men with lower urinary tract symptoms. AB - Purpose: To determine changes in autonomic nervous system activity after treatment in men with lower urinary tract symptoms (LUTS), we evaluated changes in patients' symptoms, uroflowmetry, and heart rate variability (HRV) after treatment with alpha-blockers for 12 weeks. Materials and Methods: Ninety-five men who had LUTS (International Prostate Symptom Score [IPSS] >=8) were included in this study. We divided them into two groups on the basis of a low frequency/high frequency (LF/HF) ratio of 1.6. After treatment with Xatral XL (Handok Inc., Korea) 10 mg for 3 months, we rechecked their IPSS, uroflowmetry, HRV and compared these with the baseline measurements. Results: Fifty-four men were assigned to the low LF/HF group (group A: LF/HF <=1.6) and 41 men to the high LF/HF group (group B: LF/HF >1.6). At baseline and 12 weeks, none of the parameters differed significantly between the groups except for HF, which is one of the parameters of HRV. IPSS, the IPSS-voiding subscore, and the IPSS-storage subscore decreased and maximal uroflow increased significantly after 12 weeks of treatment. Whereas the baseline LF/HF ratio increased from 0.89+/-0.407 to 1.80+/ 1.804 after treatment in group A, it decreased from 3.93+/-5.471 to 1.79+/-1.153 in group B. Conclusions: The efficacies of Xatral XL were clear in both groups. We found that the LF/HF ratio in the two groups merged to a value of approximately 1.79 after treatment. We suggest that this could be a clue to the importance of balance in autonomic nervous system activity in men with LUTS. PMID- 29333516 TI - Comparison of penile length at 6-24 months between children with unilateral cryptorchidism and a healthy normal cohort. AB - Purpose: Urologic diseases affected by testosterone can be associated with smaller penis size compared to the normal population. We sought to compare penile length in children with unilateral cryptorchidism and normative data from a cohort of healthy Korean boys. Materials and Methods: This study was performed in 259 Korean boys (212, normal cohort; 47, cryptorchidism) aged 6-24 months, each of whom had been brought to an outpatient clinic at one of five tertiary hospitals (Gyeongsangnam-do Province) between April 2014 and June 2015. Penile length was measured via stretched penile length (SPL) and testicular size was measured using orchidometry (mL). Results: SPL in children with cryptorchidism was significantly shorter compared to a cohort of healthy Korean boys aged 6-24 months (3.7+/-0.5 cm and 4.3+/-0.8 cm, p<0.001), although there were no differences with regard to height, body weight and contralateral testicular size between the two groups. According to the stratified ages (6-12, 12-18, and 18-24 months), SPL in children with cryptorchidism was persistently shorter at their ages than those without. Conclusions: It might be that the penile length aged 6 24 months of children with unilateral cryptorchidism is shorter than that of a cohort of healthy Korean boys. PMID- 29333517 TI - Safety and feasibility of platelet rich fibrin matrix injections for treatment of common urologic conditions. AB - Purpose: Autologous platelet rich plasma (PRP) is used increasingly in a variety of settings. PRP injections have been used for decades to improve angiogenesis and wound healing. They have also been offered commercially in urology with little to no data on safety or efficacy. PRP could theoretically improve multiple urologic conditions, such as erectile dysfunction (ED), Peyronie's disease (PD), and stress urinary incontinence (SUI). A concern with PRP, however, is early washout, a situation potentially avoided by conversion to platelet rich fibrin matrix (PRFM). Before clinical trials can be performed, safety analysis is desirable. We reviewed an initial series of patients receiving PRFM for urologic pathology to assess safety and feasibility. Materials and Methods: Data were reviewed for patients treated with PRFM at our center from November 2012 to July 2017. Patients were observed immediately post-injection and at follow-up for complications and tolerability. Where applicable, International Index of Erectile Function (IIEF-5) scores were reviewed before and after injections for ED and/or PD. Pad use data was collected pre/post injection for SUI. Results: Seventeen patients were identified, with a mean receipt of 2.1 injections per patient. Post procedural minor adverse events were seen in 3 men, consisting of mild pain at injection site and mild penile bruising. No patients experienced complications at follow-up. No decline was observed in men completing pre/post IIEF-5 evaluations. Conclusions: PRFM appears to be a safe and feasible treatment modality in patients with urologic disease. Further placebo-controlled trials are warranted. PMID- 29333518 TI - Letter to the editor: Urethral strictures after bipolar transurethral resection of prostate may be linked to slow resection rate. PMID- 29333519 TI - The authors reply: Urethral strictures after bipolar transurethral resection of prostate may be linked to slow resection rate. PMID- 29333520 TI - Application of epigenetic data in human health risk assessment. AB - Despite the many recent advances in the field of epigenetics, application of this knowledge in environmental health risk assessment has been limited. In this paper, we identify opportunities for application of epigenetic data to support health risk assessment. We consider current applications and present a vision for the future. PMID- 29333521 TI - Nanomaterials for convection-enhanced delivery of agents to treat brain tumors. AB - Nanomaterials represent a promising and versatile platform for the delivery of therapeutics to the brain. Treatment of brain tumors has been a long-standing challenge in the field of neuro-oncology. The current standard of care - a multimodal approach of surgery, radiation and chemotherapy - yields only a modest therapeutic benefit for patients with malignant gliomas. A major obstacle for treatment is the failure to achieve sufficient delivery of therapeutics at the tumor site. Recent advances in local drug delivery techniques, along with the development of highly effective brain-penetrating nanocarriers, have significantly improved treatment and imaging of brain tumors in preclinical studies. The major advantage of this combined strategy is the ability to optimize local therapy, by maintaining an effective and sustained concentration of therapeutics in the brain with minimal systemic toxicity. This review highlights some of the latest developments, significant advancements and current challenges in local delivery of nanomaterials for the treatment of brain tumors. PMID- 29333522 TI - Impact of HLA Class I Alleles on Timing of HIV Rebound After Antiretroviral Treatment Interruption. AB - Background: Identifying host determinants associated with HIV reservoir size and timing of viral rebound after an analytic treatment interruption (ATI) is an important step in the search for an HIV functional cure. We performed a pooled analysis of 103 participants from 4 AIDS Clinical Trials Group ATI studies to identify the association between HLA class I alleles with HIV reservoir size and viral rebound timing. Methods: Total HIV DNA and cell-associated HIV RNA (CA-RNA) were quantified in pre-ATI peripheral blood mononuclear cell samples, and residual plasma viremia was measured using the single-copy assay. HLA class I typing was performed, and we generated an odds ratio (OR) of predicted HLA effect on HIV viremia control for each individual and compared this with time to viral rebound, and levels of HIV DNA and CA-RNA. Results: There was no significant association between the HLA ORs and levels of HIV DNA or CA-RNA, but carriage of protective HLA-B alleles (lower OR scores) was associated with delayed viral rebound (P = 0.02). Higher OR scores at the HLA-C locus were associated with longer duration of ART treatment (P = 0.02) and this trend was also seen with the combined OR score (P < 0.01). Individuals with protective HLA-B alleles had delayed viral rebound after treatment interruption that was not explained by differences in baseline reservoir size. Conclusions: The results indicate the vital role of cellular host immunity in preventing HIV rebound and the importance of taking into account the HLA status of study participants being evaluated in trials for an HIV cure. PMID- 29333523 TI - Spin-orbit torques from interfacial spin-orbit coupling for various interfaces. AB - We use a perturbative approach to study the effects of interfacial spin-orbit coupling in magnetic multilayers by treating the two-dimensional Rashba model in a fully three-dimensional description of electron transport near an interface. This formalism provides a compact analytic expression for current-induced spin orbit torques in terms of unperturbed scattering coefficients, allowing computation of spin-orbit torques for various contexts, by simply substituting scattering coefficients into the formulas. It applies to calculations of spin orbit torques for magnetic bilayers with bulk magnetism, those with interface magnetism, a normal metal/ferromagnetic insulator junction, and a topological insulator/ferromagnet junction. It predicts a dampinglike component of spin-orbit torque that is distinct from any intrinsic contribution or those that arise from particular spin relaxation mechanisms. We discuss the effects of proximity induced magnetism and insertion of an additional layer and provide formulas for in-plane current, which is induced by a perpendicular bias, anisotropic magnetoresistance, and spin memory loss in the same formalism. PMID- 29333524 TI - Resonant X-ray Emission of Hexagonal Boron Nitride. AB - The electronic structure of hexagonal boron nitride (h-BN) is explored using measurements of x-ray absorption and resonant inelastic x-ray scattering (RIXS) at the nitrogen K edge (1s) in tandem with calculations using many-body perturbation theory within the GW and Bethe-Salpeter equation (BSE) approximations. Our calculations include the effects of lattice disorder from phonons activated thermally and from zero point energy. They highlight the influence of disorder on near-edge x-ray spectra. PMID- 29333525 TI - Dyslipidemia and its Correlates among HIV Infected Children on HAART Attending Mbarara Regional Referral Hospital. AB - Background: HAART and chronic HIV associated inflammation has been attributed to abnormal lipids in HIV infected people. Little is known about dyslipidemia among children in Uganda in the era of increasing Highly Active Anti Retroviral Therapy (HAART) use. We determined the prevalence of lipid abnormalities, the correlation of the lipid abnormalities to CD4 count, HIV clinical stage and duration on HAART among HIV infected children. Methods: This was a cross-sectional, descriptive and analytical study of HIV infected children age 1-17 years receiving HAART for more than 6 months in Mbarara Regional Referral Hospital. Consent and assent were obtained as appropriate. Sociodemographic, clinical and immunological data were collected and recorded in a questionnaire. A blood sample was taken for lipid profiling. Dyslipidemia was defined as any low HDL (<=40mg/dl), high LDL (>130mg/dl), high TG (>130mg/dl) and a high total cholesterol (>200mg/dl) or a combination of these in the study population. The proportion of children with dyslipidemia was calculated and logistic regression analysis for associated factors. Results: The mean age was 118 months (SD 49 months) with 49.5% of the children male and 62.1% had severe HIV disease at initiation of HAART. Mean duration of HAART was 55.6 months (SD 31.2 months). The prevalence of dyslipidemia was 74%. Among the children with dyslipidemia, 56.6% exhibited low HDL, 22% had hypertriglyceridemia, 15.6% had high LDL and 11% had hypercholesterolemia. We found significant association between dyslipidemia and WHO clinical stage at initiation of HAART (AOR 2.9 1.05 - 8.45 p=0.040). Conclusion: There was a high prevalence of dyslipidemia associated with severe HIV disease at initiation of HAART among HIV-infected children on HAART. PMID- 29333526 TI - Next-Generation Rapid Autopsies Enable Tumor Evolution Tracking and Generation of Preclinical Models. AB - Purpose: Patients with cancer who graciously consent for autopsy represent an invaluable resource for the study of cancer biology. To advance the study of tumor evolution, metastases, and resistance to treatment, we developed a next generation rapid autopsy program integrated within a broader precision medicine clinical trial that interrogates pre- and postmortem tissue samples for patients of all ages and cancer types. Materials and Methods: One hundred twenty-three (22%) of 554 patients who consented to the clinical trial also consented for rapid autopsy. This report comprises the first 15 autopsies, including patients with metastatic carcinoma (n = 10), melanoma (n = 1), and glioma (n = 4). Whole exome sequencing (WES) was performed on frozen autopsy tumor samples from multiple anatomic sites and on non-neoplastic tissue. RNA sequencing (RNA-Seq) was performed on a subset of frozen samples. Tissue was also used for the development of preclinical models, including tumor organoids and patient-derived xenografts. Results: Three hundred forty-six frozen samples were procured in total. WES was performed on 113 samples and RNA-Seq on 72 samples. Successful cell strain, tumor organoid, and/or patient-derived xenograft development was achieved in four samples, including an inoperable pediatric glioma. WES data were used to assess clonal evolution and molecular heterogeneity of tumors in individual patients. Mutational profiles of primary tumors and metastases yielded candidate mediators of metastatic spread and organotropism including CUL9 and PIGM in metastatic ependymoma and ANKRD52 in metastatic melanoma to the lung. RNA Seq data identified novel gene fusion candidates. Conclusion: A next-generation sequencing-based autopsy program in conjunction with a pre-mortem precision medicine pipeline for diverse tumors affords a valuable window into clonal evolution, metastasis, and alterations underlying treatment. Moreover, such an autopsy program yields robust preclinical models of disease. PMID- 29333527 TI - Impact of Genetic Ancestry on Outcomes in ECOG-ACRIN-E5103. AB - Purpose: Racial disparity in breast cancer outcomes exists between African American and Caucasian women in the United States. We have evaluated the impact of genetically determined ancestry on disparity in efficacy and therapy-induced toxicity for breast cancer patients in the context of a randomized, phase III adjuvant trial. Patients and Methods: This study compared outcomes between 386 patients of African ancestry (AA) and 2473 patients of European ancestry (EA) in a randomized, phase III breast cancer trial; ECOG-ACRIN-E5103. The primary efficacy endpoint, invasive disease free survival (DFS) and clinically significant toxicities were compared including: anthracycline-induced congestive heart failure (CHF), taxane-induced peripheral neuropathy (TIPN), and bevacizumab induced hypertension. Results: Overall, AAs had significantly inferior DFS (p=0.002; HR=1.5) compared with EAs. This was significant in the estrogen receptor-positive subgroup (p=0.03); with a similar, non-significant trend for those who had triple negative breast cancer (TNBC; p=0.12). AAs also had significantly more grade 3-4 TIPN (OR=2.9; p=2.4 *10-11) and grade 3-4 bevacizumab-induced hypertension (OR=1.6; p=0.02), with a trend for more CHF (OR=1.8; p=0.08). AAs had significantly more dose reductions for paclitaxel (p=6.6 *10-6). In AAs, dose reductions in paclitaxel had a significant negative impact on DFS (p=0.03); whereas in EAs, dose reductions did not impact outcome (p=0.35). Conclusion: AAs had inferior DFS with more clinically important toxicities in ECOG-ACRIN-E5103. The altered risk to benefit ratio for adjuvant breast cancer chemotherapy should lead to additional research with the focus centered on the impact of genetic ancestry on both efficacy and toxicity. Strategies to minimize dose reductions for paclitaxel, especially due to TIPN, are warranted for this population. PMID- 29333529 TI - Promoting resilience in diverse classrooms: The answers are not in the back of the book. PMID- 29333528 TI - Patterns of Metastatic Spread and Mechanisms of Resistance to Crizotinib in ROS1 Positive Non-Small-Cell Lung Cancer. AB - PURPOSE: The ROS1 tyrosine kinase is activated through ROS1 gene rearrangements in 1-2% of non-small cell lung cancer (NSCLC), conferring sensitivity to treatment with the ALK/ROS1/MET inhibitor crizotinib. Currently, insights into patterns of metastatic spread and mechanisms of crizotinib resistance among ROS1 positive patients are limited. PATIENTS AND METHODS: We reviewed clinical and radiographic imaging data of patients with ROS1- and ALK-positive NSCLC in order to compare patterns of metastatic spread at initial metastatic diagnosis. To determine molecular mechanisms of crizotinib resistance, we also analyzed repeat biopsies from a cohort of ROS1-positive patients progressing on crizotinib. RESULTS: We identified 39 and 196 patients with advanced ROS1- and ALK-positive NSCLC, respectively. ROS1-positive patients had significantly lower rates of extrathoracic metastases (ROS1 59.0%, ALK 83.2%, P=0.002), including lower rates of brain metastases (ROS1 19.4%, ALK 39.1%; P = 0.033), at initial metastatic diagnosis. Despite similar overall survival between ALK- and ROS1-positive patients treated with crizotinib (median 3.0 versus 2.5 years, respectively; P=0.786), ROS1-positive patients also had a significantly lower cumulative incidence of brain metastases (34% vs. 73% at 5 years; P<0.0001). Additionally, we identified 16 patients who underwent a total of 17 repeat biopsies following progression on crizotinib. ROS1 resistance mutations were identified in 53% of specimens, including 9/14 (64%) non-brain metastasis specimens. ROS1 mutations included: G2032R (41%), D2033N (6%), and S1986F (6%). CONCLUSIONS: Compared to ALK rearrangements, ROS1 rearrangements are associated with lower rates of extrathoracic metastases, including fewer brain metastases, at initial metastatic diagnosis. ROS1 resistance mutations, particularly G2032R, appear to be the predominant mechanism of resistance to crizotinib, underscoring the need to develop novel ROS1 inhibitors with activity against these resistant mutants. PMID- 29333530 TI - Transparent Flexible Active Faraday Cage Enables In Vivo Capacitance Measurement in Assembled Microsensor. AB - Capacitive micro-sensors such as accelerometers, gyroscopes and pressure sensors are increasingly used in the modern electronic world. However, the in vivo use of capacitive sensing for measurement of pressure or other variables inside a human body suffers from significant errors due to stray capacitance. This paper proposes a solution consisting of a transparent thin flexible Faraday cage that surrounds the sensor. By supplying the active sensing voltage simultaneously to the deformable electrode of the capacitive sensor and to the Faraday cage, the stray capacitance during in vivo measurements can be largely eliminated. Due to the transparency of the Faraday cage, the top and bottom portions of a capacitive sensor can be accurately aligned and assembled together. Experimental results presented in the paper show that stray capacitance is reduced by a factor of 10 by the Faraday cage, when the sensor is subjected to a full immersion in water. PMID- 29333533 TI - Psychosocial Outcomes Among Children Following Defilement And The Caregivers Responses To The Children's Trauma: A Qualitative Study From Nairobi Suburbs, Kenya. AB - Defilement is traumatic and often associated with psychosocial problems in children, parental distress and significant social strain on family relationships and well-being. This study aimed at examining psychosocial outcomes in defiled children and their caregivers' perceptions of the children's trauma after defilement. The study was carried out between June 2015 and July 2016 at Kenyatta National Hospital and Nairobi Women's Hospital. It adopted a qualitative descriptive design using interviews to obtain information from six purposely selected caregivers comprising of four mothers, one father and one grandmother. All the perpetrators were adult males and two of the defiled children were male and 5 were female. Two of the children were siblings; a brother and his sister. Five of the perpetrators were known to the children and one of these was the child's biological father. The defiled children had negative outcomes in terms of poor academic performance, low self esteem, depression and poor social relationships. In addition one of the children contracted HIV/AIDS, two became pregnant, one was used to traffic drugs, and another had mental retardation. The caregivers felt significant psychosocial distress. There is therefore, need to routinely screen for psychological, social and physical outcomes of children exposed to defilement trauma and to always consider caregiver distress when treating these children. PMID- 29333531 TI - Patient-Reported Outcome Measures (PROM) as A Preoperative Assessment Tool. AB - Aim of review: Patient-reported outcomes (PRO) on functional, social, and behavioral factors might be important preoperative predictors of postoperative outcomes. We conducted a literature review to explore associations of preoperative depression, socioeconomic status, social support, functional status/frailty, cognitive status, self-management skills, health literacy, and nutritional status with surgical outcomes. Methods: Two electronic data bases, including PubMed and Google Scholar, were searched linking either depression, socioeconomic status, social support, functional status/frailty, cognitive status, self-management skills, health literacy, or nutritional status with surgery, postoperative complications, or perioperative period within the past 2 decades. Recent findings: Preoperative depression has been linked to postoperative delirium, complications, persistent pain, longer lengths of stay, and mortality. Socioeconomic status associates with overall and cancer-free survival. Low socioeconomic status has also been connected to medication non- compliance. Social support can predict overall and cancer- free survival, as well as physical, social and emotional quality of life. Poor functional status and frailty have been related to postoperative complications, longer lengths of stay, post-discharge institutionalization, and higher costs. Preoperative cognitive impairment also associates with self-medication management errors, postoperative cognitive impairment, delirium, complications and mortality. In addition, a greater tendency for reduced adherence to preoperative medication instructions has been linked to health illiteracy. Preoperative malnutrition is prevalent and associates with postoperative morbidity. Conclusion: Efficient and effective assessments of social and behavioral determinants of health, functional status, health literacy, patient's perception of health, and preferences for self management may improve postoperative management and surgical outcomes, particularly among vulnerable patients undergoing elective surgery who might have subtle physical, social, or psychological deficits or challenges, otherwise missed upon routine evaluation. Patient Reported Outcome Measures (PROMs) can be used to effectively and efficiently collect these factors in the preoperative period, thereby identifying areas that can be intervened preemptively. (Partially Funded by the National Institute on Aging and the Wake Forest University Claude D. Pepper Older Americans Independence Center.). PMID- 29333535 TI - It is Time to Obligate the Warning Messages on Junk Food Packages and Advertisements: A Step to live long. PMID- 29333534 TI - The Stagnant Adaptation of Defined and Xeno-Free Culture of iPSCs in Academia. AB - Pluripotent Stem Cells were originally derived and cultured using a feeder layer of cells. Movements have been undertaken to transition from this method to one more defined, high-throughput, and without xenogenic factors. Tremendous research has been done in this area and many products have been developed, however, based on our analysis of recent publications in stem cell related journals many in academia are still using older methods like a feeder layer. In this short communication, we discuss the feasibility of transitioning to defined, xeno-free methods, how a standardized method could improve the field and industry, and that a study bringing together multiple institutions comparing culture methods could be done to evaluate the efficacy of these new methods. PMID- 29333532 TI - Molecular Docking: From Lock and Key to Combination Lock. AB - Accurate modeling of protein ligand binding is an important step in structure based drug design, is a useful starting point for finding new lead compounds or drug candidates. The 'Lock and Key' concept of protein-ligand binding has dominated descriptions of these interactions, and has been effectively translated to computational molecular docking approaches. In turn, molecular docking can reveal key elements in protein-ligand interactions-thereby enabling design of potent small molecule inhibitors directed against specific targets. However, accurate predictions of binding pose and energetic remain challenging problems. The last decade has witnessed more sophisticated molecular docking approaches to modeling protein-ligand binding and energetics. However, the complexities that confront accurate modeling of binding phenomena remain formidable. Subtle recognition and discrimination patterns governed by three-dimensional features and microenvironments of the active site play vital roles in consolidating the key intermolecular interactions that mediates ligand binding. Herein, we briefly review contemporary approaches and suggest that future approaches treat protein ligand docking problems in the context of a 'combination lock' system. PMID- 29333538 TI - Editorial: What's next after "universal" adhesives, "bioactive" adhesives? PMID- 29333536 TI - OCT-Angiography for Non-Invasive Monitoring of Neuronal and Vascular Structure in Mouse Retina: Implication for Characterization of Retinal Neurovascular Coupling. AB - Purpose: Optical coherence tomography angiography (OCT-A) is a newly developed technique to visualize retinal vasculature non-invasively based on interferometry. Although OCT-A has been used clinically, its applications in small animal studies have been limited. This study is designed to develop and demonstrate the feasibility of a protocol for the use of an en-face OCT-based method to visualize and quantify retinal microvasculature in mice that can be used for in vivo assessment of retina ischemia. Methods: A customized algorithm was developed to extract angiographic profiles of the mouse retina from en-face OCT using an unmodified Bioptigen Envisu R-Class OCT imaging system. En-face OCT images were collected in living animals and then compared to images acquired following termination of blood flow to the retina. The images were processed with ImageJ using the raw file importer. The vessel enhancement algorithm was developed based on a combination of local contrast enhancement, Laplacian of Gaussian peak detection and background subtraction methods. For comparison, fluorescein angiography (FA) was performed using Heidelberg Spectralis(r) HRA+OCT imaging system. Results: By vessel enhancement algorithm, we successfully extracted retinal vasculature and quantified retinal vessel branch points, vascular area and vessel lengths with AngioTool. While the retinal neuronal structure could be simultaneously identified and quantified using B-scan and volumetric OCT run in the annular scanning model, the retinal vasculature in OCT A was dramatically diminished after the animals were sacrificed, indicating en face OCT-A signal is a measure of the blood flow. Conclusions: These studies indicate that a novel approach to extract angiographs from en-face OCT images by utilizing local structure enhancement can be used to provide depth-resolved retinal vasculature distributions. Simultaneous non-invasive analysis of retinal vessels and neurons by OCT-A and OCT may provide a novel approach to characterize retinal ischemia accompanied by neurovascular coupling. PMID- 29333539 TI - Past, present, and future of the IAAD. PMID- 29333542 TI - Acceleration of bursty multiprotein target search kinetics on DNA by colocalisation. AB - Proteins are capable of locating specific targets on DNA by employing a facilitated diffusion process with intermittent 1D and 3D search steps. Gene colocalisation and coregulation-i.e. the spatial proximity of two communicating genes-is one factor capable of accelerating the target search process along the DNA. We perform Monte Carlo computer simulations and demonstrate the benefits of gene colocalisation for minimising the search time in a model DNA-protein system. We use a simple diffusion model to mimic the search for targets by proteins, produced initially in bursts of multiple proteins and performing the first passage search on the DNA chain. The behaviour of the mean first-passage times to the target is studied as a function of distance between the initial position of proteins and the DNA target position, as well as versus the concentration of proteins. We also examine the properties of bursty target search kinetics for varying physical-chemical protein-DNA binding affinity. Our findings underline the relevance of colocalisation of production and binding sites for protein search inside biological cells. PMID- 29333543 TI - In vitro evaluation of the enantiomeric R- and S-1,1'-binaphthyl-2,2' diaminodichlorido-Pt(ii) complexes in human Burkitt lymphoma cells: emphasis on cellular accumulation, cytotoxicity, DNA binding, and ability to induce apoptosis. AB - The aim of this project is to gain insights into the uptake and cellular actions of the enantiomeric R- and S-1,1'-binaphthyl-2,2'-diaminodichlorido-Pt(ii) complexes (R- and S-[Pt(DABN)Cl2]) in the cisplatin-sensitive human Burkitt lymphoma cell line (Gumbus, IC50: 1.3 +/- 0.2 MUM) and its cisplatin-resistant sub-line (CDDPrGB, IC50: 6.6 +/- 1.2 MUM). The cellular uptakes of R- and S [Pt(DABN)Cl2] are ca. 4-fold higher than cisplatin, and involve a transport mechanism independent of the volume-sensitive, organic anion-channel complex, which facilitates cisplatin accumulation. The cisplatin-resistant CDDPrGB cells are not cross-resistant to either S- or R-[Pt(DABN)Cl2]. We also find that even though R-[Pt(DABN)Cl2] has a higher maximal cellular uptake and binds at higher levels to calf-thymus DNA than S-[Pt(DABN)Cl2], it appears that S-[Pt(DABN)Cl2] is more cytotoxic for Gumbus (IC50: 0.4 +/- 0.1 MUM) compared to R-[Pt(DABN)Cl2] (IC50: 0.7 +/- 0.3 MUM). The cellular action of R- and S-[Pt(DABN)Cl2] involves G0/G1 cell cycle arrest and cell death involving the extrinsic and intrinsic apoptotic pathways. PMID- 29333537 TI - Cerebral Autoregulation in Hypertension and Ischemic Stroke: A Mini Review. AB - Aging and chronic hypertension are associated with dysfunction in vascular smooth muscle, endothelial cells, and neurovascular coupling. These dysfunctions induce impaired myogenic response and cerebral autoregulation, which diminish the protection of cerebral arterioles to the cerebral microcirculation from elevated pressure in hypertension. Chronic hypertension promotes cerebral focal ischemia in response to reductions in blood pressure that are often seen in sedentary elderly patients on antihypertensive therapy. Cerebral autoregulatory dysfunction evokes Blood-Brain Barrier (BBB) leakage, allowing the circulating inflammatory factors to infiltrate the brain to activate glia. The impaired cerebral autoregulation-induced inflammatory and ischemic injury could cause neuronal cell death and synaptic dysfunction which promote cognitive deficits. In this brief review, we summarize the pathogenesis and signaling mechanisms of cerebral autoregulation in hypertension and ischemic stroke-induced cognitive deficits, and discuss our new targets including 20-Hydroxyeicosatetraenoic acid (20-HETE), Gamma-Adducin (Add3) and Matrix Metalloproteinase-9 (MMP-9) that may contribute to the altered cerebral vascular function. PMID- 29333544 TI - Formal total synthesis of salvianolic acid N. AB - An efficient synthetic pathway for the total synthesis of salvianolic acid N has been reported. The key reaction steps, the Wittig reaction for Z stereoselectivity and an intramolecular cyclization for a seven membered ring skeleton, have been optimized to improve the synthetic feasibility and provide the best conditions in terms of yield. Moreover, a notable reaction is the reaction of the deprotected allylic group with Pd catalyst. An improved overall yield of 11% has been achieved for salvianolic acid N starting from 3,4 dimethoxybenzaldehyde in 11 steps. PMID- 29333547 TI - Diverse bimetallic mechanisms emerging from transition metal Lewis acid/base pairs: development of co-catalysis with metal carbenes and metal carbonyl anions. AB - The rational development of catalytic reactions involving cooperative behavior between two catalytic reactive sites represents a frontier area of research from which novel reactivity and selectivity patterns emerge. Within this context, this Feature highlights the development of a cooperative system involving transition metal Lewis acid/base pairs. Bimetallic systems consisting of copper carbene Lewis acids and metal carbonyl anion Lewis bases, (NHC)Cu-[MCO], are easily synthesized from readily available organometallic building blocks (NHC = N heterocyclic carbene; [MCO]- = metal carbonyl anion, e.g. [FeCp(CO)2]-, [Mn(CO)5] , etc.). Stoichiometric reactivity studies indicate that the dative Cu<-M bonds in these systems are labile towards heterolysis under mild conditions, thus providing in situ access both to polar metal-metal bonds and to "frustrated" transition metal Lewis acid/base pairs as dictated by reaction conditions. Catalytic transformations ranging from C-C and C-B coupling reactions to hydrogenation and other reductions have been developed from both manifolds: bimetallic catalysis involving (a) binuclear intermediates engaging in cooperative bond activation and formation, and (b) orthogonal mononuclear intermediates that operate in either tandem or co-dependent manners. Preliminary indications point to the future emergence of novel reactivity and selectivity patterns as these new motifs undergo continued development, and additionally demonstrate that the relative matching of two reactive sites provides a method for controlling catalytic behavior. Collectively, these results highlight the fundamental importance of exploring unconventional catalytic paradigms. PMID- 29333548 TI - Efficient generation of an oxidopyrylium ylide using a Pd catalyst and its [5+2] cycloadditions with several dipolarophiles. AB - An efficient method for the generation of an oxidopyrylium ylide from 6-acetoxy-6 acetoxymethyl-2H-pyran-3(6H)-one using a Pd catalyst and [5+2] cycloadditions of the resulting ylide are described. Among substituted styrene derivatives as dipolarophiles, electron-rich styrenes showed higher yield (up to 80%). The [5+2] cycloaddition reactions can also be applied to exo-methylene cyclic compounds, and an improved method for the synthesis of polygalolide intermediate has been demonstrated. PMID- 29333550 TI - CuWO4 as a photocatalyst for room temperature aerobic benzylamine oxidation. AB - The aerobic photochemical oxidation of benzylamine was carried out on the ternary oxides CuWO4 and BiVO4 as a test proton-coupled-electron-transfer reaction in acetonitrile. Both oxides give the coupled imine product, N benzylidenebenzylamine, in near quantitative (98-99%) yield, with rate constants of 0.34 h-1 g-1 and 0.70 h-1 g-1 for CuWO4 and BiVO4, respectively. PMID- 29333551 TI - Anharmonic vibrational spectra from double incremental potential energy and dipole surfaces. AB - We extend the fragmentation-based double incremental expansion in FALCON coordinates (DIF) and its linear-scaling analogue [C. Konig and O. Christiansen, J. Chem. Phys., 2016, 145, 064105] to dipole surfaces. Thereby, we enable the calculation of intensities in vibrational absorption spectra from these cost efficient property surfaces. We validate the obtained potential energy and dipole surfaces by vibrational spectra calculations employing damped response theory for correlated vibrational coupled cluster wave functions. Our largest calculation on a hexa-phenyl includes all 180 vibrational degrees of freedom of the system, which illustrates the potential of both the DIF schemes for property surface generation and the use of damped response theory from high-dimensional correlated vibrational wave functions. Generally, we obtain good agreement between the spectra calculated from the DIF property surfaces and the non-fragmented analogues. Moreover, when adopting suitable electronic structure methods, good agreement with respect to the experiment can be obtained, as shown for the example of 5-methylfurfural and RI-MP2. In conclusion, our results illustrate that the presented scheme with linearly scaling surfaces enables high quality spectra, as long as reasonably sized fragments can be defined. With this work, we push the realistic limits of vibrational spectra calculations from vibrational wave function methods and accurate electronic structure calculations to significantly larger systems than currently accessible. PMID- 29333545 TI - Dynamic changes in copper homeostasis and post-transcriptional regulation of Atp7a during myogenic differentiation. AB - Copper (Cu) is an essential metal required for activity of a number of redox active enzymes that participate in critical cellular pathways such as metabolism and cell signaling. Because it is also a toxic metal, Cu must be tightly controlled by a series of transporters and chaperone proteins that regulate Cu homeostasis. The critical nature of Cu is highlighted by the fact that mutations in Cu homeostasis genes cause pathologic conditions such as Menkes and Wilson diseases. While Cu homeostasis in highly affected tissues like the liver and brain is well understood, no study has probed the role of Cu in development of skeletal muscle, another tissue that often shows pathology in these conditions. Here, we found an increase in whole cell Cu content during differentiation of cultured immortalized or primary myoblasts derived from mouse satellite cells. We demonstrate that Cu is required for both proliferation and differentiation of primary myoblasts. We also show that a key Cu homeostasis gene, Atp7a, undergoes dynamic changes in expression during myogenic differentiation. Alternative polyadenylation and stability of Atp7a mRNA fluctuates with differentiation stage of the myoblasts, indicating post-transcriptional regulation of Atp7a that depends on the differentiation state. This is the first report of a requirement for Cu during myogenic differentiation and provides the basis for understanding the network of Cu transport associated with myogenesis. PMID- 29333552 TI - Counting DNA molecules with visual segment-based readouts in minutes. AB - An ultrafast and extremely simple approach was proposed to count the number of DNA molecules without any microfluidic-based device. By directly counting the number of amplicon clusters in a capillary, the absolute amount of DNA molecules could be easily determined. PMID- 29333553 TI - Microwave-assisted synthesis of TEMPO-labeled hydrogels traceable with MRI. AB - Polymer functionalization strategies have recently attracted considerable attention for several applications in biomaterials science. In particular, technological advancements in medical imaging have focused on the design of polymeric matrices to improve non-invasive approaches and diagnostic accuracy. In this scenario, the use of microwave irradiation of aqueous solutions containing appropriate combinations of polymers is gaining increasing interest in the synthesis of sterile hydrogels without using monomers, eliminating the need to remove unreacted species. In this study, we developed a method for the in situ fabrication of TEMPO-labeled hydrogels based on a one-pot microwave reaction that can then be tracked by magnetic resonance imaging (MRI) without using toxic compounds that could be hostile for the target tissue. Click chemistry was used to link TEMPO to the polymeric scaffold. In an in vivo model, the system was able to preserve its TEMPO paramagnetic activity up to 1 month after hydrogel injection, showing a clear detectable signal on T1-weighted MRI with a longitudinal relaxivity value of 0.29 mM s-1, comparable to a value of 0.31 mM s 1 characteristic of TEMPO application. The uncleavable conjugation between the contrast agent and the polymeric scaffold is a leading point to record these results: the use of TEMPO only physically entrapped in the polymeric scaffold did not show MRI traceability even after few hours. Moreover, the use of TEMPO labeled hydrogels can also help to reduce the number of animals sacrificed being a longitudinal non-invasive technique. PMID- 29333554 TI - In-cell NMR: from metabolites to macromolecules. AB - In-cell NMR of macromolecules has gained momentum over the last ten years as an approach that might bridge the branches of cell biology and structural biology. In this review, we put it in the context of earlier efforts that aimed to characterize by NMR the cellular environment of live cells and their intracellular metabolites. Although technical aspects distinguish these earlier in vivo NMR studies and the more recent in cell NMR efforts to characterize macromolecules in a cellular environment, we believe that both share major concerns ranging from sensitivity and line broadening to cell viability. Approaches to overcome the limitations in one subfield thereby can serve the other one and vice versa. The relevance in biomedical sciences might stretch from the direct following of drug metabolism in the cell to the observation of target binding, and thereby encompasses in-cell NMR both of metabolites and macromolecules. We underline the efforts of the field to move to novel biological insights by some selected examples. PMID- 29333555 TI - A mechanism study on the hydrogen evolution reaction catalyzed by molybdenum disulfide complexes. AB - Density functional theory (DFT) calculations show that H2 evolution is attributed to active sulfur hydrides derived from MoS2 complexes via two- or three-electron reduction from the synthesized [(PY5Me2)MoS2]2+. Water acts as a bridge for H2 evolution from the intermolecular H+/H- coupling between sulfur hydride complexes and hydrated protons. PMID- 29333556 TI - Correction: Chemical analysis in saliva and the search for salivary biomarkers - a tutorial review. AB - Correction for 'Chemical analysis in saliva and the search for salivary biomarkers - a tutorial review' by Kamonwad Ngamchuea, et al., Analyst, 2018, 143, 81-99. PMID- 29333557 TI - Drop impact dynamics on slippery liquid-infused porous surfaces: influence of oil thickness. AB - Slippery liquid-infused porous surfaces (SLIPS) are porous nanostructures impregnated with a low surface tension lubricant. They have recently shown great promise in various applications that require non-wettable superhydrophobic surfaces. In this paper, we investigate experimentally the influence of the oil thickness on the wetting properties and drop impact dynamics of new SLIPS. By tuning the thickness of the oil layer deposited through spin-coating, we show that a sufficiently thick layer of oil is necessary to avoid dewetting spots on the porous nanostructure and thus increasing the homogeneity of the liquid distribution. Drop impact on these surfaces is investigated with a particular emphasis on the spreading and rebound dynamics when varying the oil thickness and the Weber number. PMID- 29333558 TI - Selective hydrogenation of nitroarenes using an electrogenerated polyoxometalate redox mediator. AB - The 2-electron reduced form of the polyoxometalate silicotungstic acid (H4[SiW12O4]) is shown to be an effective and selective hydrogenation agent for a range of nitroarenes without the need for any co-catalyst. The ease of generation of the active species and its recyclability suggest that a new approach to this important class of chemical conversions is possible. PMID- 29333560 TI - A design of experiment approach for efficient multi-parametric drug testing using a Caenorhabditis elegans model. AB - When studying the drug effectiveness towards a target model, one should distinguish the effects of the drug itself and of all the other factors that could influence the screening outcome. This comprehensive knowledge is crucial, especially when model organisms are used to study the drug effect at a systemic level, as a higher number of factors can influence the drug-testing outcome. Covering the entire experimental domain and studying the effect of the simultaneous change in several factors would require numerous experiments, which are costly and time-consuming. Therefore, a design of experiment (DoE) approach in drug-testing is emerging as a robust and efficient method to reduce the use of resources, while maximizing the knowledge of the process. Here, we used a 3 factor-Doehlert DoE to characterize the concentration-dependent effect of the drug doxycycline on the development duration of the nematode Caenorhabditis elegans. To cover the experimental space, 13 experiments were designed and performed, where different doxycycline concentrations were tested, while also varying the temperature and the food amount, which are known to influence the duration of C. elegans development. A microfluidic platform was designed to isolate and culture C. elegans larvae, while testing the doxycycline effect with full control of temperature and feeding over the entire development. Our approach allowed predicting the doxycycline effect on C. elegans development in the complete drug concentration/temperature/feeding experimental space, maximizing the understanding of the effect of this antibiotic on the C. elegans development and paving the way towards a standardized and optimized drug-testing process. PMID- 29333559 TI - Oxidation of a [Cu2S] complex by N2O and CO2: insights into a role of tetranuclearity in the CuZ site of nitrous oxide reductase. AB - Oxidation of a [Cu2(MU-S)] complex by N2O or CO2 generated a [Cu2(MU-SO4)] product. In the presence of a sulfur trap, a [Cu2(MU-O)] species also formed from N2O. A [Cu2(MU-CS3)] species derived from CS2 modeled initial reaction intermediates. These observations indicate that one role of tetranuclearity in the CuZ catalytic site of nitrous oxide reductase is to protect the crucial S2- ligand from oxidation. PMID- 29333561 TI - Pharmacokinetics of the B-Cell Lymphoma 2 (Bcl-2) Inhibitor Venetoclax in Female Subjects with Systemic Lupus Erythematosus. AB - BACKGROUND AND OBJECTIVE: Venetoclax is an oral selective Bcl-2 inhibitor approved for the treatment of patients with chronic lymphocytic leukemia with 17p deletion. Mechanistic and preclinical evidence warranted evaluation of venetoclax for the treatment of systemic lupus erythematosus (SLE). This work characterized the pharmacokinetics of venetoclax in female subjects with SLE. METHODS: Single (10-500 mg) and multiple (30-600 mg) escalating doses of venetoclax or matching placebo were evaluated using randomized, double-blind, placebo-controlled designs (6 active and 2 placebo per dose with 73 unique SLE patients enrolled, 25 of whom enrolled twice). The multiple-dose evaluation consisted of two cycles, each with once-daily dosing for 7 days followed by a 21-day washout. Non-compartmental and population pharmacokinetic analyses of venetoclax serial plasma concentrations were conducted. RESULTS: Venetoclax exhibited approximately dose-proportional exposures, with peak concentrations observed 4-8 h post-dose. Venetoclax steady state exposures were achieved by day 4 of dosing, and the median area under the plasma concentration-time curve (AUC) accumulation ratio ranged from 1.1 to 1.5. A two-compartment model with first-order absorption and elimination described venetoclax pharmacokinetics. The estimates (95% bootstrap confidence interval) for venetoclax apparent clearance, central and peripheral volumes of distribution, intercompartmental clearance, absorption rate constant, and lag time were 16.3 L/h (14.6-17.9), 37 L (26-57), 122 L (98-183), 3.7 L/h (2.6-5.0), 0.13 h-1 (0.11-0.17), and 1.6 h (1.6-1.7), respectively. The population estimate for venetoclax terminal-phase elimination half-life was approximately 28 h. CONCLUSIONS: In female subjects with SLE, venetoclax displayed pharmacokinetic characteristics consistent with previous observations in subjects with hematologic malignancies. CLINICALTRIALS. GOV IDENTIFIER: NCT01686555. PMID- 29333562 TI - Have You Ever Googled a Patient or Been Friended by a Patient? Social Media Intersects the Practice of Genetic Counseling. AB - Patients and healthcare providers are becoming increasingly connected via social media, bringing new opportunities and challenges. Direct connection can occur between patients and providers using online tools such as Facebook and LinkedIn. In addition, providers can gather information about patients using a search engine such as Google, referred to as patient-targeted Googling (PTG). An online 54-item survey was used to gain information on (1) how and to what extent genetic counseling students and genetic counselors connect directly with patients via social media sites, and (2) gather information on providers using PTG. Four hundred genetic counseling students and genetic counselors participated in the survey. The majority of respondents (88.9%; n = 344/387) find it is never or rarely acceptable to interact with current patients via social media sites; however, 27.7% (n = 110/397) have visited a patient's social media site. Gathering information for patient care was the most commonly reported reason (76.8%; n = 43/56). Thirty-three percent (n = 130/394) have considered searching online or actually searched online for information about a patient. Curiosity was the most common reason (92.7%; n = 114/123); although, respondents also used PTG to obtain contact information and to prepare for patient sessions. Our study supports the need for development and dissemination of professional guidelines to serve as a valuable resource for practicing genetic counselors and genetic counseling training programs. PMID- 29333563 TI - Aldehyde Dehydrogenase Activity in Adipose Tissue: Isolation and Gene Expression Profile of Distinct Sub-population of Mesenchymal Stromal Cells. AB - Thanks to their relative abundance and easier collection, adipose tissue (AT) is considered an alternative source for the isolation of mesenchymal stromal cells (MSCs). MSCs have great therapeutic values and are thus under investigations for several clinical indications such as regenerative medicine and immunomodulation. In this work, we aimed to identify, isolate and characterize AT-MSCs based on their aldehyde dehydrogenase (ALDH) activity known to be a classical feature of stem cells. FACS technology allowed to isolate two different populations of AT MSCs according to their ALDH activity (referred as ALDH+ and ALDH-). Depending on their ALDH activity, the transcriptome analysis of both cell populations demonstrated a differential pattern of genes related to the main properties of MSCs (proliferation, response to hypoxia, angiogenesis, phenotype, stemness, multilineage, hematopoiesis, immunomodulation). Based on these profiling, both AT MSC populations could differ in terms of biological responses and functionalities. Collectively, the use of ALDH for isolating and identifying sub populations of MSCs with specific gene profile may represent an alternative method to provide solutions for targeted therapeutic applications. PMID- 29333564 TI - Is 123I-metaiodobenzylguanidine heart-to-mediastinum ratio dependent on age? From Japanese Society of Nuclear Medicine normal database. AB - BACKGROUND: Heart-to-mediastinum ratios (HMRs) of 123I-metaiodobenzylguanidine (MIBG) have usually been applied to prognostic evaluations of heart failure and Lewy body disease. However, whether these ratios depend on patient age has not yet been clarified using normal databases. METHODS: We analyzed 62 patients (average age 57 +/- 19 years, male 45%) derived from a normal database of the Japanese Society of Nuclear Medicine working group. The HMR was calculated from early (15 min) and delayed (3-4 h) anterior planar 123I-MIBG images. All HMRs were standardized to medium-energy general purpose (MEGP) collimator equivalent conditions using conversion coefficients for the collimator types. Washout rates (WR) were also calculated, and we analyzed whether early and late HMR, and WR are associated with age. RESULTS: Before standardization of HMR to MEGP collimator conditions, HMR and age did not significantly correlate. However, late HMR significantly correlated with age after standardization: late HMR = - 0.0071 * age + 3.69 (r2 = 0.078, p = 0.028), indicating that a 14-year increase in age corresponded to a decrease in HMR of 0.1. Whereas the lower limit (2.5% quantile) of late HMR was 2.3 for all patients, it was 2.5 and 2.0 for those aged <= 63 and > 63 years, respectively. Early HMR tended to be lower in subjects with the higher age (p = 0.076), whereas WR was not affected by age. CONCLUSION: While late HMR was slightly decreased in elderly patients, the lower limit of 2.2-2.3 can still be used to determine both early and late HMR. PMID- 29333566 TI - Principles of Management of Central Nervous System Infections. AB - CNS infections in children are medical emergency and are associated with high mortality and morbidity. For diagnosis, a high index of suspicion is required. Clinical assessment should be supplemented by laboratory investigations including CSF Gram stain and cultures, blood culture, PCR on CSF, serological tests, and imaging. Commonly associated life threatening complications include coma, seizure, raised intracranial pressure (ICP), focal deficits, shock, respiratory failure, and fluid and electrolyte abnormalities. Immediate management should first address control of airway, breathing and circulation; protocolized management of raised ICP and status epilepticus; maintaining adequate intravascular volume; and close monitoring for early detection of complications. Appropriate antimicrobial agents should be administered promptly according to the suspected pathogen. Clinical evaluation, laboratory workup, specific antimicrobial therapy, supportive treatment, and management of associated complications should go hand in hand in a protocolized way for better outcome. PMID- 29333565 TI - Manual on the proper use of lutetium-177-labeled somatostatin analogue (Lu-177 DOTA-TATE) injectable in radionuclide therapy (2nd ed.). AB - Here we present the guideline for the treatment of neuroendocrine tumors using Lu 177-DOTA-TATE on the basis of radiation safety aspects in Japan. This guideline was prepared by a study supported by Ministry of Health, Labour, and Welfare, and approved by Japanese Society of Nuclear Medicine. Lu-177-DOTA-TATE treatment in Japan should be carried out according to this guideline. Although this guideline is applied in Japan, the issues for radiation protection shown in this guideline are considered internationally useful as well. Only the original Japanese version is the formal document. PMID- 29333567 TI - Predictors for Intracranial Hemorrhage Following Intravenous Thrombolysis in Posterior Circulation Stroke. AB - Intravenous thrombolysis (IVT) is a standard treatment for anterior (ACS) and posterior circulation stroke (PCS). However, due to the low occurrence of PCS and of intracranial hemorrhage (ICH) in PCS, the knowledge about ICH predictors following IVT in PCS is sparse. Our aim was to identify predictors for ICH following IVT in PCS. The set consisted of 1281 consecutive ischemic stroke (IS) patients treated with IVT, out of which 158 (103 males; mean age 65.6 +/- 12.3 years) had PCS. Collected data include baseline characteristics, common stroke risk factors, pre-medication, stroke severity, admission blood glucose level, blood pressure and treatment with intravenous antihypertensive therapy before and during IVT, occlusion of arteries, recanalization rate, time to treatment, and clinical outcome at day 90. Overall, 11 (7%) patients had ICH. Atrial fibrillation (p = 0.004), neurological deficit at time of treatment in the National Institutes of Health Stroke Scale (p = 0.016), decreased level of consciousness (p = 0.003), occlusion of basilar artery (p = 0.007), occlusion of PCA (p = 0.001), and additional endovascular therapy (p = 0.001) were identified by logistic regression analysis as significant predictors for ICH in PCS. Patients with ischemic lesion in the brainstem, occlusion of vertebral artery, or absence of basilar and posterior cerebral artery occlusion might be considered for treatment with IVT even in borderline cases. Those patients seem to have less frequently favorable outcomes without an increase in ICH rate. Time to IVT in PCS seems not to influence ICH risk or chances for favorable outcomes as significantly as it does in ACS. PMID- 29333569 TI - An integrated fuzzy-based advanced eutrophication simulation model to develop the best management scenarios for a river basin. AB - Assessment of water quality status of a river with respect to its discharge has become prerequisite to sustainable river basin management. The present paper develops an integrated model for simulating and evaluating strategies for water quality management in a river basin management by controlling point source pollutant loadings and operations of multi-purpose projects. Water Quality Analysis and Simulation Program (WASP version 8.0) has been used for modeling the transport of pollutant loadings and their impact on water quality in the river. The study presents a novel approach of integrating fuzzy set theory with an "advanced eutrophication" model to simulate the transmission and distribution of several interrelated water quality variables and their bio-physiochemical processes in an effective manner in the Ganges river basin, India. After calibration, simulated values are compared with the observed values to validate the model's robustness. Fuzzy technique of order preference by similarity to ideal solution (F-TOPSIS) has been used to incorporate the uncertainty associated with the water quality simulation results. The model also simulates five different scenarios for pollution reduction, to determine the maximum pollutant loadings during monsoon and dry periods. The final results clearly indicate how modeled reduction in the rate of wastewater discharge has reduced impacts of pollutants in the downstream. Scenarios suggesting a river discharge rate of 1500 m3/s during the lean period, in addition to 25 and 50% reduction in the load rate, are found to be the most effective option to restore quality of river Ganges. Thus, the model serves as an important hydrologic tool to the policy makers by suggesting appropriate remediation action plans. PMID- 29333568 TI - Comparison of effects of thawing entire donor sperm vial vs. partial thawing (shaving) on sperm quality. AB - PURPOSE: Partial thawing of a vial of cryopreserved sperm (shaving) is sometimes applied as a measure to preserve sperm for further use, particularly in cases of very restricted sperm quantity. However, mechanical violence may disrupt the sperm-wall and lead to impaired in-vitro fertilization (IVF) outcomes. MATERIAL AND METHODS: In a retrospective case-control study at a tertiary, university affiliated medical center, we compared the IVF/intracytoplasmic sperm injection (ICSI) outcomes of patients who used donor sperm following partial thawing (shaving) of the vial of cryopreserved sperm (n = 99) to a control group consisting of patients for whom the vial of sperm was completely thawed before use (n = 99). RESULTS: While no differences were observed in the rates of oocyte fertilization, the mean number of top-quality embryos (TQE) was significantly lower in the shaving group than in the complete thawing group (1.33 +/- 0.17 vs. 1.87 +/- 0.17, p < 0.02). Experimental analysis of aliquots from the same donors revealed significantly reduced motility in sperm samples that were shaved vs. fully thawed (6.5 vs. 37.1%, p < 0.001). CONCLUSIONS: In cases in which available cryopreserved sperm samples are limited, shaving of the vial without thawing can be used but with caution and only when absolutely necessary. Further, large prospective studies are needed to better clarify whether there is post-thawing sperm damage and to compare IVF outcomes after these two thawing methods. PMID- 29333570 TI - Professional quality of life, wellness education, and coping strategies among emergency physicians. AB - Professional quality of life (ProQOL) is affected by and affects professional well-being and performance. The objectives of this study are to identify risk factors of ProQOL among EM physicians in Zagazig University hospitals (ZUHs), to detect the relationship between ProQOL and coping strategies, and to measure the implication of the Worksite Wellness Education (WWE) program on improving knowledge skills, ProQOL, and coping. An intervention study was conducted among 108 EM physicians at ZUHs through two stages: assessing ProQOL subscales (CS, BO, and STS) and coping strategies and conducting the WWE program. A pre-post-test design was used in the evaluation. CS was higher among the older age group, smokers, nighttime sleepers, and hobbies' practitioners. Coping strategies carried out by EM physicians to overcome stress and their ProQOL scores were improved significantly post program. ProQOL has multiple factors that affect it. Applying the WWE program will address this concept and may raise awareness about how to cope with work stressors. PMID- 29333571 TI - Diurnal variations in personal care products in seawater and mussels at three Mediterranean coastal sites. AB - The presence of personal care products (PCPs) in the marine environment is of major concern. PCPs, UV filters, and musks can enter the marine environment indirectly through wastewater or directly via recreational activities. We conducted this study to document patterns in the occurrence of seven PCPs at three coastal sites impacted by recreational activities during 1 day. The study focused on diurnal variations in these seven PCPs in seawater and indigenous mussels. In seawater, UV filters showed diurnal variations that mirrored variations in recreational activities at the sites. Ethylhexyl methoxycinnamate (EHMC) and octocrylene (OC) water concentrations increased from under the limit of quantification in the morning to 106 and 369 ng/L, respectively, when recreational activities were the highest. In mussels, diurnal variations in OC were observed, with the lowest concentrations recorded in the morning and then increasing throughout the day. As Mytilus spp. are widely used as sentinels in coastal pollution monitoring programs (mussel watch), our findings on diurnal variations could enhance sampling recommendations for recreational sites impacted by PCPs. PMID- 29333572 TI - Possible protective effect of the algae spirulina against nephrotoxicity induced by cyclosporine A and/or gamma radiation in rats. AB - The present study was conducted to evaluate the possible protective role of the algae spirulina (Sp) against nephrotoxicity and oxidative stress which are the main secondary effects induced by the immunosuppressant drug CSA and/or ionizing radiation. In this study, male rats were given Sp (1 g/kg) either for 15 days before irradiation (6.5 Gy) or 5 days before and 10 days concomitant with CSA (25 mg/kg). Markers used to assess renal injury included serum creatinine, urea, glucose, albumin, protein, and lipid profile as well as kidney content of reduced glutathione (GSH); lipid peroxidation (thiobarbituric acid reactive substances (TBARS)); nitrite and superoxide dismutase (SOD) activity. In addition, some trace elements (Zn and Mg) were estimated in kidney. Apoptosis was assessed by immunohistochemical estimation of caspase-3 expression in addition to histopathological examination. Results revealed that gamma radiation and/or CSA induced elevation in urea, creatinine, lipids, and glucose while decreasing albumin and protein levels. There was a noticeable increase in kidney content of GSH, TBARS, and nitrite. Meanwhile, profound decrease in kidney SOD activity was observed. Treatment with Sp significantly reversed the changes induced by CSA and/or gamma radiation in renal function tests. Spirulina also ameliorated kidney oxidative stress through decreasing GSH, TBARS, and nitrite kidney content while increasing SOD activity. Histopathological examination further confirmed Sp protective efficacy. Moreover, kidney caspase-3 expression that was triggered by CSA and/or gamma radiation was decreased. In conclusion, spirulina can be regarded as a promising renoprotective natural agent against renal injury induced by CSA and/or gamma radiation. PMID- 29333573 TI - Simultaneous site-directed mutagenesis of duplicated loci in soybean using a single guide RNA. AB - KEY MESSAGE: Using a gRNA and Agrobacterium-mediated transformation, we performed simultaneous site-directed mutagenesis of two GmPPD loci in soybean. Mutations in GmPPD loci were confirmed in at least 33% of T2 seeds. The clustered regularly interspaced short palindromic repeat (CRISPR)/CRISPR-associated endonuclease 9 (Cas9) system is a powerful tool for site-directed mutagenesis in crops. Using a single guide RNA (gRNA) and Agrobacterium-mediated transformation, we performed simultaneous site-directed mutagenesis of two homoeologous loci in soybean (Glycine max), GmPPD1 and GmPPD2, which encode the orthologs of Arabidopsis thaliana PEAPOD (PPD). Most of the T1 plants had heterozygous and/or chimeric mutations for the targeted loci. The sequencing analysis of T1 and T2 generations indicates that putative mutation induced in the T0 plant is transmitted to the T1 generation. The inheritable mutation induced in the T1 plant was also detected. This result indicates that continuous induction of mutations during T1 plant development increases the occurrence of mutations in germ cells, which ensures the transmission of mutations to the next generation. Simultaneous site-directed mutagenesis in both GmPPD loci was confirmed in at least 33% of T2 seeds examined. Approximately 19% of double mutants did not contain the Cas9/gRNA expression construct. Double mutants with frameshift mutations in both GmPPD1 and GmPPD2 had dome-shaped trifoliate leaves, extremely twisted pods, and produced few seeds. Taken together, our data indicate that continuous induction of mutations in the whole plant and advancing generations of transgenic plants enable efficient simultaneous site-directed mutagenesis in duplicated loci in soybean. PMID- 29333574 TI - Unique metabolic activation of adipose tissue macrophages in obesity promotes inflammatory responses. AB - AIMS/HYPOTHESIS: Recent studies have identified intracellular metabolism as a fundamental determinant of macrophage function. In obesity, proinflammatory macrophages accumulate in adipose tissue and trigger chronic low-grade inflammation, that promotes the development of systemic insulin resistance, yet changes in their intracellular energy metabolism are currently unknown. We therefore set out to study metabolic signatures of adipose tissue macrophages (ATMs) in lean and obese conditions. METHODS: F4/80-positive ATMs were isolated from obese vs lean mice. High-fat feeding of wild-type mice and myeloid-specific Hif1alpha-/- mice was used to examine the role of hypoxia-inducible factor-1alpha (HIF-1alpha) in ATMs part of obese adipose tissue. In vitro, bone marrow-derived macrophages were co-cultured with adipose tissue explants to examine adipose tissue-induced changes in macrophage phenotypes. Transcriptome analysis, real time flux measurements, ELISA and several other approaches were used to determine the metabolic signatures and inflammatory status of macrophages. In addition, various metabolic routes were inhibited to determine their relevance for cytokine production. RESULTS: Transcriptome analysis and extracellular flux measurements of mouse ATMs revealed unique metabolic rewiring in obesity characterised by both increased glycolysis and oxidative phosphorylation. Similar metabolic activation of CD14+ cells in obese individuals was associated with diabetes outcome. These changes were not observed in peritoneal macrophages from obese vs lean mice and did not resemble metabolic rewiring in M1-primed macrophages. Instead, metabolic activation of macrophages was dose-dependently induced by a set of adipose tissue derived factors that could not be reduced to leptin or lactate. Using metabolic inhibitors, we identified various metabolic routes, including fatty acid oxidation, glycolysis and glutaminolysis, that contributed to cytokine release by ATMs in lean adipose tissue. Glycolysis appeared to be the main contributor to the proinflammatory trait of macrophages in obese adipose tissue. HIF-1alpha, a key regulator of glycolysis, nonetheless appeared to play no critical role in proinflammatory activation of ATMs during early stages of obesity. CONCLUSIONS/INTERPRETATION: Our results reveal unique metabolic activation of ATMs in obesity that promotes inflammatory cytokine release. Further understanding of metabolic programming in ATMs will most likely lead to novel therapeutic targets to curtail inflammatory responses in obesity. DATA AVAILABILITY: Microarray data of ATMs isolated from obese or lean mice have been submitted to the Gene Expression Omnibus (accession no. GSE84000). PMID- 29333575 TI - A phase 1, dose-escalation study of PF-06664178, an anti-Trop-2/Aur0101 antibody drug conjugate in patients with advanced or metastatic solid tumors. AB - Purpose and Methods Trop-2 is a glycoprotein over-expressed in many solid tumors but at low levels in normal human tissue, providing a potential therapeutic target. We conducted a phase 1 dose-finding study of PF-06664178, an antibody drug conjugate that targets Trop-2 for the selective delivery of the cytotoxic payload Aur0101. The primary objective was to determine the maximum tolerated dose and recommended phase 2 dose. Secondary objectives included further characterization of the safety profile, pharmacokinetics and antitumor activity. Eligible patients were enrolled and received multiple escalating doses of PF 06664178 in an open-label and unblinded manner based on a modified continual reassessment method. Results Thirty-one patients with advanced or metastatic solid tumors were treated with escalating doses of PF-06664178 given intravenously every 21 days. Doses explored ranged from 0.15 mg/kg to 4.8 mg/kg. Seven patients experienced at least one dose limiting toxicity (DLT), either neutropenia or rash. Doses of 3.60 mg/kg, 4.2 mg/kg and 4.8 mg/kg were considered intolerable due to DLTs in skin rash, mucosa and neutropenia. Best overall response was stable disease in 11 patients (37.9%). None of the patients had a partial or complete response. Systemic exposure of PF-06664178 increased in a dose-related manner. Serum concentrations of free Aur0101 were substantially lower than those of PF-06664178 and total antibody. No correlation of Trop-2 expression and objective response was observed, although Trop-2 overexpression was not required for study entry. The intermediate dose of 2.4 mg/kg appeared to be the highest tolerated dose, but this was not fully explored as the study was terminated early due to excess toxicity. Conclusion PF-06664178 showed toxicity at high dose levels with modest antitumor activity. Neutropenia, skin rash and mucosal inflammation were dose limiting toxicities. Findings from this study may potentially aid in future antibody drug conjugate design and trials. PMID- 29333576 TI - Bone radionuclide therapy and increased survival with radium-223 is the way to go for nuclear medicine: the offer that oncologists cannot refuse. PMID- 29333577 TI - Prostate Cancer Patients' Understanding of the Gleason Scoring System: Implications for Shared Decision-Making. AB - The Gleason scoring system is a key component of a prostate cancer diagnosis, since it indicates disease aggressiveness. It also serves as a risk communication tool that facilitates shared treatment decision-making. However, the system is highly complex and therefore difficult to communicate: factors which have been shown to undermine well-informed and high-quality shared treatment decision making. To systematically explore prostate cancer patients' understanding of the Gleason scoring system (GSS), we assessed knowledge and perceived importance among men who had completed treatment (N = 50). Patients were administered a survey that assessed patient knowledge and patients' perceived importance of the GSS, as well as demographics, medical factors (e.g., Gleason score at diagnosis), and health literacy. Bivariate analyses were conducted to identify associations with patient knowledge and perceived importance of the GSS. The sample was generally well-educated (48% with a bachelor's degree or higher) and health literate (M = 12.9, SD = 2.2, range = 3-15). Despite this, patient knowledge of the GSS was low (M = 1.8, SD = 1.4, range = 1-4). Patients' understanding of the importance of the GSS was moderate (M = 2.8, SD = 1.0, range = 0-4) and was positively associated with GSS knowledge (p < .01). Additionally, GSS knowledge was negatively associated with years since biopsy (p < .05). Age and health literacy were positively associated with patients' perceived importance of the GSS (p < .05), but not with GSS knowledge. Patient knowledge is thus less than optimal and would benefit from enhanced communication to maximize shared treatment decision-making. Future studies are needed to explore the potential utility of a simplified Gleason grading system and improved patient-provider communication. PMID- 29333578 TI - Insulin resistance and bone: a biological partnership. AB - Despite a clear association between type 2 diabetes (T2D) and fracture risk, the pathogenesis of bone fragility in T2D has not been clearly elucidated. Insulin resistance is the primary defect in T2D. Insulin signalling regulates both bone formation and bone resorption, but whether insulin resistance can affect bone has not been established. On the other hand, evidence exists that bone might play a role in the regulation of glucose metabolism. This article reviews the available experimental and clinical evidence on the interplay between bone and insulin resistance. Interestingly, a bilateral relationship between bone and insulin resistance seems to exist that unites them in a biological partnership. PMID- 29333580 TI - Persistent Organochlorine Contaminant Residues in Tissues of Hedgehogs from Turkey. AB - The residues of persistent organochlorinated pollutants (POPs), namely polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) (HCHs, CHLs, HCCPs, DDTs, and dicofol congeners) were investigated in the hair and muscle of road-killed Erinaceus roumanicus and E. concolor in Turkey. Mean residue levels were as follows: in hair, PCBs = 7.43 +/- 4.88 ng/g and OCPs = 9.21 +/- 1.27 ng/g; in muscle, PCBs = 30.73 +/- 2.51 ng/g and OCPs = 145.04 +/- 16.59 ng/g. There was no significant difference between species and sex, while there was significant difference between habitats and regions in terms of either total PCB and OCP levels, or POP levels (p < 0.05). Age was a determinative factor for the bio-accumulation of POPs. The contaminant levels were high in the species, sample areas, and habitats. The data also showed that tissues of hedgehogs are suitable for monitoring and evaluating the bioaccumulation of POP levels in Turkey. PMID- 29333579 TI - Factors associated with the number and size of renal angiomyolipomas in sporadic angiomyolipoma (sAML): a study of adult patients with sAML managed in a Dutch tertiary referral center. AB - PURPOSE: To describe the patient characteristics, treatments, disease monitoring, and kidney function of patients with sporadic angiomyolipoma (sAML), stratified by the number and size of renal angiomyolipomas (AMLs). METHODS: Single-center retrospective analysis of patients with sAML treated from 1990 to 2015 in a dedicated clinic for inheritable tumor syndromes in a tertiary referral center from the Netherlands. Patients' first AML assessment at the clinic was defined as the index date. Patient characteristics were measured at the index date. Treatments, disease monitoring, and kidney function were measured post-index date. RESULTS: The study sample included 53 patients followed for a total of 184.6 patient-years. At the index date, the largest AML was >= 3.5 cm for 26 patients and < 3.5 cm for 27 patients (including six patients with five or more AMLs of < 3.5 cm). As compared to patients with AMLs < 3.5 cm, patients with largest AML >= 3.5 cm had higher frequency of pre-index bleeding episodes (31 vs. 4%), pre-index hypertension (35 vs. 15%), post-index nephrectomy (19 vs. 4%), post-index embolization (8 vs. 0%), and post-index renal scans (1.14 vs. 0.74 scans/year). Kidney impairment was especially pronounced in young adults with AML >= 3.5 cm. On average, patients with sAML developed chronic kidney disease stage two earlier than the general Dutch population (age 42 vs. 55 years), but later than the patients with tuberous sclerosis complex (35 years). CONCLUSIONS: Patients with sAML, especially those with larger AMLs, have high disease burden. PMID- 29333581 TI - High final energy of gallium arsenide laser increases MyoD gene expression during the intermediate phase of muscle regeneration after cryoinjury in rats. AB - The aim of this study was to determine the effects of gallium arsenide (GaAs) laser on IGF-I, MyoD, MAFbx, and TNF-alpha gene expression during the intermediate phase of muscle regeneration after cryoinjury 21 Wistar rats were divided into three groups (n = 7 per group): untreated with no injury (control group), cryoinjury without GaAs (injured group), and cryoinjury with GaAs (GaAs injured group). The cryoinjury was induced in the central region of the tibialis anterior muscle (TA). The region injured was irradiated once a day during 14 days using GaAs laser (904 nm; spot size 0.035 cm2, output power 50 mW; energy density 69 J cm-2; exposure time 4 s per point; final energy 4.8 J). Twenty-four hours after the last application, the right and left TA muscles were collected for histological (collagen content) and molecular (gene expression of IGF-I, MyoD, MAFbx, and TNF-alpha) analyses, respectively. Data were analyzed using one-way ANOVA at P < 0.05. There were no significant (P > 0.05) differences in collagen density and IGF-I gene expression in all experimental groups. There were similar (P < 0.05) decreases in MAFbx and TNF-alpha gene expression in the injured and GaAs-injured groups, compared to control group. The MyoD gene expression increased (P = 0.008) in the GaAs-injured group, but not in the injured group (P = 0.338), compared to control group. GaAs laser therapy had a positive effect on MyoD gene expression, but not IGF-I, MAFbx, and TNF-alpha, during intermediary phases (14 days post-injury) of muscle repair. PMID- 29333582 TI - Outpatient erbium:YAG (2940 nm) laser treatment for snoring: a prospective study on 40 patients. AB - Snoring is a sleep phenomenon due to the partial upper airway obstruction during sleep which causes vibration of the tissues of the rhino-oro-hypopharynx and less frequently the larynx. This study evaluated the use and effectiveness of the erbium:YAG 2940-nm laser as an adjunctive in providing treatment for patients suffering from chronic snoring-related sleep disorders. A prospective study of 40 consecutive patients with snoring and sleep disorders was performed, assessing data before and after three Er:YAG laser treatment sessions. During laser treatment, the pain was almost absent. There were no side effects, except a very mild sore throat in 1 out of 40 patients. The patient's evaluation of satisfaction of the results obtained after the treatments showed that 85% of cases were very satisfied, 5 patients (12.5%) reported being fairly satisfied with the treatment and only 1 subject (2.5%) was not satisfied. Mallampati, Friedman Tongue Position, and degree of O (oropharynx) at nose oropharynx hypopharynx and larynx classification were significantly decreased after the laser sessions. The decrease of Epworth Sleepiness Scale and Visual Analogue Scale for loudness of snoring, waking up during sleep because of snoring, dry mouth on waking, and choking was all statistically significant. The incidence of dreaming during the night also raised significantly; 30/40 (75%) of cases perceived less tightness in their throat and better breathing after treatment. These results were stable at 20 months follow-up (14-24 q) in 72% of cases. Nonsurgical and non-invasive Er:YAG laser treatment demonstrated to be a valid procedure in reducing the loudness of snoring. PMID- 29333583 TI - The Microbial Community of Tardigrades: Environmental Influence and Species Specificity of Microbiome Structure and Composition. AB - Symbiotic associations of metazoans with bacteria strongly influence animal biology since bacteria are ubiquitous and virtually no animal is completely free from them. Tardigrades are micrometazoans famous for their ability to undergo ametabolic states (cryptobiosis) but very little information is available on potential microbial associations. We characterized the microbiomes of six limnoterrestrial tardigrade species belonging to several phylogenetic lines in tandem with the microbiomes of their respective substrates. The experimental design enabled us to determine the effects of both the environment and the host genetic background on the tardigrade microbiome; we were able to define the microbial community of the same species sampled from different environments, and the communities of different species from the same environment. Our 16S rRNA gene amplicon approach indicated that the tardigrade microbiome is species-specific and well differentiated from the environment. Tardigrade species showed a much lower microbial diversity compared to their substrates, with only one significant exception. Forty-nine common OTUs (operational taxonomic units) were classified into six bacterial phyla, while four common OTUs were unclassified and probably represent novel bacterial taxa. Specifically, the tardigrade microbiome appears dominated by Proteobacteria and Bacteroidetes. Some OTUs were shared between different species from geographically distant samples, suggesting the associated bacteria may be widespread. Putative endosymbionts of tardigrades from the order Rickettsiales were identified. Our results indicated that like all other animals, tardigrades have their own microbiota that is different among species, and its assembly is determined by host genotype and environmental influences. PMID- 29333585 TI - Indian Journal of Gastroenterology: The promises fulfilled and waiting for fulfillment! PMID- 29333584 TI - In focus in HCB. PMID- 29333586 TI - Pre-operative templating for knee arthroplasty shows low accuracy with standard X rays. AB - OBJECTIVES: The purpose of this study was to evaluate the accuracy and reliability of pre-operative templating in predicting the size of femoral and tibial components and the effect of coronal deformity on templating accuracy. METHODS: This was a retrospective study of 39 pre-operative templates prepared by three different surgeons with different levels of training. The accuracy and reliability measures were evaluated by alpha and kappa coefficients of agreement. The analysis of the effect of coronal deformity on the accuracy of the template was measured by the Spearman's correlation test. RESULTS: Templating was accurate for the femoral component in 28.21% of anterposterior (AP) radiographs and 35.90% of lateral radiographs. Kappa coefficients were respectively 0.111 (95% confidence interval [95%CI]: -0.19 to 0.241) and 0.200 (95%CI: -0.010 to 0.401), indicating poor agreement. Templating accuracy for the tibial component were, respectively, 37.61% and 47.01% for AP and lateral views. Kappa coefficients were 0.186 (95%CI: -0.070 to 0.379) for the AP view and 0.315 (95%CI: -0.199 to 0.431) for the lateral view, showing poor and slight agreement respectively. Considering a margin of error of +/-1 sizes, the agreement level improved for all components, particularly for tibia, where agreement levels become very good. The inter observer agreement was fair for all components, except for the lateral view of the femoral component, whose agreement was good. The Spearman correlation test showed no correlation between accuracy of templating and coronal deformity. CONCLUSION: Pre-operative templating is an unreliable and inaccurate tool. There is no relation between coronal deformity and accuracy of templating. PMID- 29333587 TI - Genetic characterization and modification of a bioethanol-producing yeast strain. AB - Yeast Saccharomyces cerevisiae strains isolated from different sources generally show extensive genetic and phenotypic diversity. Understanding how genomic variations influence phenotypes is important for developing strategies with improved economic traits. The diploid S. cerevisiae strain NY1308 is used for cellulosic bioethanol production. Whole genome sequencing identified an extensive amount of single nucleotide variations and small insertions/deletions in the genome of NY1308 compared with the S288c genome. Gene annotation of the assembled NY1308 genome showed that 43 unique genes are absent in the S288c genome. Phylogenetic analysis suggested most of the unique genes were obtained through horizontal gene transfer from other species. RNA-Seq revealed that some unique genes were not functional in NY1308 due to unidentified intron sequences. During bioethanol fermentation, NY1308 tends to flocculate when certain inhibitors (derived from the pretreatment of cellulosic feedstock) are present in the fermentation medium. qRT-PCR and genetic manipulation confirmed that the novel gene, NYn43, contributed to the flocculation ability of NY1308. Deletion of NYn43 resulted in a faster fermentation rate for NY1308. This work disclosed the genetic characterization of a bioethanol-producing S. cerevisiae strain and provided a useful paradigm showing how the genetic diversity of the yeast population would facilitate the personalized development of desirable traits. PMID- 29333589 TI - New species and new record of the genus Cheloniodiplostomum (Trematoda, Proterodiplostomidae, Polycotylinae), parasites of freshwater turtles from Argentina. AB - The aim of the present paper is to describe a new species of the genus Cheloniodiplostomum (Digenea, Proterodiplostomidae) in the Hilaire's toadhead turtle Phrynops hilarii from Argentina and to expand the geographic and host distribution of Cheloniodiplostomum testudinis. Additionally, we present a diagnostic key for Cheloniodiplostomum. PMID- 29333588 TI - Nitrogen-fixation activity and the abundance and taxonomy of nifH genes in agricultural, pristine, and urban prairie stream sediments chronically exposed to different levels of nitrogen loading. AB - Small streams exert great influences on the retention and attenuation of nitrogen (N) within stream networks. Human land use can lead to increased transport of dissolved inorganic N compounds and downstream eutrophication. Microbial activity in streams is important for maintaining an actively functioning N cycle. Chronically high N loading in streams affects the rates of the central processes of the N cycle by increasing rates of nitrification and denitrification, with biota exhibiting decreased efficiency of N use. The LINXII project measured N cycle parameters in small streams using 15NO3- tracer release experiments. We concurrently measured N2 fixation rates in six streams of three types (agricultural, pristine, and urban prairie streams) as part of this broader study of major N-cycle processes. Nitrogen fixation in streams was significantly negatively correlated with nitrate levels, dissolved inorganic N levels, and denitrification rates. Algal mat and leaf litter samples generally exhibited the highest rates of N2 fixation. The abundance of nifH genes, as measured by real time PCR, was marginally correlated with N2-fixation rates, but not to other N cycle processes or stream characteristics. The nifH sequences observed were assigned to cyanobacteria, Deltaproteobacteria, Methylococcus, and Rhizobia. Seasonal changes, disturbances, and varying inputs may encourage a diverse, flexible, stable N2-fixing guild. Patchiness in the streams should be considered when assessing the overall impact of N2 fixation, since algal biomass exhibited high rates of N2 fixation. PMID- 29333590 TI - Advantages and Disadvantages in Image Processing with Free Software in Radiology. AB - Currently, there are sophisticated applications that make it possible to visualize medical images and even to manipulate them. These software applications are of great interest, both from a teaching and a radiological perspective. In addition, some of these applications are known as Free Open Source Software because they are free and the source code is freely available, and therefore it can be easily obtained even on personal computers. Two examples of free open source software are Osirix Lite(r) and 3D Slicer(r). However, this last group of free applications have limitations in its use. For the radiological field, manipulating and post-processing images is increasingly important. Consequently, sophisticated computing tools that combine software and hardware to process medical images are needed. In radiology, graphic workstations allow their users to process, review, analyse, communicate and exchange multidimensional digital images acquired with different image-capturing radiological devices. These radiological devices are basically CT (Computerised Tomography), MRI (Magnetic Resonance Imaging), PET (Positron Emission Tomography), etc. Nevertheless, the programs included in these workstations have a high cost which always depends on the software provider and is always subject to its norms and requirements. With this study, we aim to present the advantages and disadvantages of these radiological image visualization systems in the advanced management of radiological studies. We will compare the features of the VITREA2(r) and AW VolumeShare 5(r) radiology workstation with free open source software applications like OsiriX(r) and 3D Slicer(r), with examples from specific studies. PMID- 29333592 TI - 3D Models of Female Pelvis Structures Reconstructed and Represented in Combination with Anatomical and Radiological Sections. AB - We present a computer program designed to visualize and interact with three dimensional models of the main anatomical structures of the female pelvis. They are reconstructed from serial sections of corpse, from the Visible Human project of the Medical Library of the United States and from serial sections of high resolution magnetic resonance. It is possible to represent these three dimensional structures in any spatial orientation, together with sectional images of corpse and magnetic resonance imaging, in the three planes of space (axial, coronal and sagittal) that facilitates the anatomical understanding and the identification of the set of visceral structures of this body region. Actually, there are few studies that analysze in detail the radiological anatomy of the female pelvis using three-dimensional models together with sectional images, making use of open applications for the representation of virtual scenes on low cost Windows(r) platforms. Our technological development allows the observation of the main female pelvis viscera in three dimensions with a very intuitive graphic interface. This computer application represents an important training tool for both medical students and specialists in gynecology and as a preliminary step in the planning of pelvic floor surgery. PMID- 29333593 TI - Control of anterior segment using an antero-posterior lingual sliding retraction system: a preliminary cone-beam CT study. AB - BACKGROUND: This study was performed to evaluate the treatment effects of the antero-posterior lingual retractor (APLR), focusing on the 3-dimensional (3D) tooth movement of the maxillary anterior teeth and their alveolar bone levels. METHODS: En masse retraction was performed using either the C-lingual retractor (CLR, C-group, n = 9) or the antero-posterior lingual retractor (APLR, AP-group, n = 8). We evaluated 3D movement of the maxillary anterior teeth and alveolar bone levels, root length of the central incisors, long axes of the maxillary canines, and occlusal plane changes from CBCT images. RESULTS: After retraction, the central incisors were more significantly intruded and their root apex was more retracted in the AP-group. The long axis of the canine was well maintained in the AP-group. There were no differences in the steepness of occlusal plane and the incidence of alveolar bone loss or of root resorption during en masse retraction with the two retractors. CONCLUSIONS: The clockwise bowing effect of the anterior segment was less with the APLR, which prevented unwanted canine movement. PMID- 29333591 TI - Differential Inhibition of Nav1.7 and Neuropathic Pain by Hybridoma-Produced and Recombinant Monoclonal Antibodies that Target Nav1.7 : Differential activities of Nav1.7-targeting monoclonal antibodies. AB - The voltage-gated Na+ channel subtype Nav1.7 is important for pain and itch in rodents and humans. We previously showed that a Nav1.7-targeting monoclonal antibody (SVmab) reduces Na+ currents and pain and itch responses in mice. Here, we investigated whether recombinant SVmab (rSVmab) binds to and blocks Nav1.7 similar to SVmab. ELISA tests revealed that SVmab was capable of binding to Nav1.7-expressing HEK293 cells, mouse DRG neurons, human nerve tissue, and the voltage-sensor domain II of Nav1.7. In contrast, rSVmab showed no or weak binding to Nav1.7 in these tests. Patch-clamp recordings showed that SVmab, but not rSVmab, markedly inhibited Na+ currents in Nav1.7-expressing HEK293 cells. Notably, electrical field stimulation increased the blocking activity of SVmab and rSVmab in Nav1.7-expressing HEK293 cells. SVmab was more effective than rSVmab in inhibiting paclitaxel-induced mechanical allodynia. SVmab also bound to human DRG neurons and inhibited their Na+ currents. Finally, potential reasons for the differential efficacy of SVmab and rSVmab and future directions are discussed. PMID- 29333594 TI - RAS testing for colorectal cancer patients is reliable in European laboratories that pass external quality assessment. AB - Wild-type status of KRAS and the NRAS gene (exon 2, 3, and 4) in the tumor should be determined before treatment of metastatic colorectal cancer (mCRC) patients with EGFR-targeting agents. There is a large variation in test methods to determine RAS status, and more sensitive detection methods were recently introduced. Data from quality assessment programs indicate substantial error rates. This study assessed the completeness and correctness of RAS testing in European laboratories that successfully passed external quality assessment (EQA). Participants were requested to send material of their most recent ten patients with mCRC who had been tested for RAS status. Isolated DNA, a hematoxylin and eosin stained tissue slide with a marked area for macrodissection and accompanying patient reports were requested. Samples were reevaluated in a reference laboratory by using a next-generation sequencing approach. In total, 31 laboratories sent in the requested material (n = 309). Despite regulations for anti-EGFR therapy, one institute did not perform full RAS testing. Reanalysis was possible for 274 samples with sufficient DNA available. In the hotspot codons of KRAS and NRAS, seven discordant results were obtained in total, five of them leading to a different prediction of anti-EGFR therapy efficacy (2%; n = 274). Results show that oncologists can rely on the quality of laboratories with good performance in EQA. Oncologists need to be aware that the testing laboratory participates successfully in EQA programs. Some EQA providers list the good performing laboratories on their website. PMID- 29333595 TI - Implanted Closed-Loop Gastric Electrical Stimulation (CLGES) System with Sensor Based Feedback Safely Limits Weight Regain at 24 Months. AB - BACKGROUND: Weight regain following bariatric surgery is not uncommon. Safe, effective weight loss treatment up to 1 year has been reported with the closed loop gastric electrical stimulation (CLGES) system. Continuous recording of eating and activity behavior by onboard sensors is one of the novel features of this closed-loop electrical stimulation therapy, and may provide improved long term weight maintenance by enhancing aftercare. METHODS: Four centers participating in a 12-month prospective multicenter randomized study monitored all implanted participants (n = 47) up to 24 months after laparoscopic implantation of a CLGES system. Weight loss, safety, quality of life (QOL), and cardiac risk factors were analyzed. RESULTS: Weight regain was limited in the 35 (74%) participants remaining enrolled at 24 months. Mean percent total body weight loss (%TBWL) changed by only 1.5% between 12 and 24 months, reported at 14.8% (95% CI 12.3 to 17.3) and 13.3% (95% CI 10.7 to 15.8), respectively. The only serious device-/procedure-related adverse events were two elective system replacements due to lead failure in the first 12 months, while improvements in QOL and cardiovascular risk factors were stable thru 24 months. CONCLUSION: During the 24 month follow-up, CLGES was shown to limit weight regain with strong safety outcomes, including no serious adverse events in the second year. We hypothesize that CLGES and objective sensor-based behavior data combined to produce behavior change. The study supports CLGES as a safe obesity treatment with potential for long-term health benefits. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT01448785. PMID- 29333596 TI - Risk of adverse events associated with front-line anti-myeloma treatment in Medicare patients with multiple myeloma. AB - This study aims to examine the risks of adverse events associated with anti multiple myeloma (MM) therapies in a large population-based cohort of elderly patients with MM. Patients diagnosed with advanced MM from 2005 through 2009 and receiving anti-MM therapy were identified from the Surveillance, Epidemiology, and End Results (SEER)-Medicare-linked data. We compared safety outcomes between novel agents (proteasome inhibitor (PI) and immunomodulatory drugs (IMiD)) and other therapies and between PI- or IMiD-based regimens and PI plus IMiD combination regimens. Of 2587 patients with advanced MM, 2048 (79%) received novel agents and 539 (21%) received other therapies. Patients with preexisting anemia and thrombocytopenia were significantly more likely to receive novel agents (85.9 vs. 82.4%, P = 0.038; 13.8 vs. 10.4%, P = 0.036), while those with preexisting cardiovascular disease and hypertension were significantly less likely to receive novel agents (73.4 vs. 79.8%, P = 0.003; 81.3 vs. 85.2%, P = 0.035). The hazard ratios for anemia, peripheral neuropathy, and thromboembolic events for patients receiving novel agents compared with those receiving other therapies were 1.19 (95% CI, 1.06-1.32), 1.57 (95% CI, 1.15-2.15), and 1.31 (95% CI, 1.03-1.67). The hazard ratios for anemia, neutropenia, and thromboembolic events for patients receiving PI plus IMiD combination therapies compared with those receiving PI- or IMiD-based therapies were 1.31 (95% CI, 1.12-1.54), 1.66 (95% CI, 1.27-2.18, and 1.37 (95% CI, 1.02-1.86). Novel agents significantly increased the risk of anemia, peripheral neuropathy, and thromboembolic events. PI plus IMiD combination therapies were associated with significantly higher risk for anemia, neutropenia, and thromboembolic events. PMID- 29333597 TI - TP53 polymorphism in plasma cell myeloma. AB - INTRODUCTION: Significant and accessible predictive factors for bortezomib treatment in plasma cell myeloma (PCM) are still lacking. TP53 codon 72 polymorphism (P72R) results in proline (P) or arginine (R) at 72 amino acid position, which causes synthesis of proteins with distinct functions. The aims of our study were to: 1) analyze whether this polymorphism is associated with an increased risk of PCM; 2) study whether the P72R polymorphism affects overall survival (OS) among PCM patients; 3) assess the possible association of the P72R polymorphism with sensitivity to bortezomib in cell cultures derived from PCM patients. MATERIAL AND METHODS: Genomic DNA from newly diagnosed 59 patients (without IgVH gene rearrangements and TP53 deletions) and 50 healthy blood donors were analyzed by RFLP-PCR to identify TP53 polymorphism. Chromosomal aberrations were detected by use of cIg-FISH. The lymphocyte cell cultures from a subgroup of 40 PCM patients were treated with bortezomib (1, 2 and 4 nM). RESULTS: The P allele of the P72R polymorphism was more common than the R allele in PMC patients compared to controls (39% vs. 24%), and the difference was significant (p = 0.02). The PP and PR genotypes (in combina-tion) were more frequent among cases than in controls (65% vs. 42%, OR = 2.32, p = 0.04). At the cell culture level and 2 nM bortezomib concentration the PP genotype was associated with higher necrosis rates (10.5%) compared to the PR genotype (5.7%, p = 0.006) or the RR genotype (6.3%, p = 0.02); however, no effect of genotypes was observed at bortezomib concentrations of 1 and 4 nM. The shortest OS (12 months) was observed in patients with the PP genotype compared to patients with the PR or RR genotypes (20 months) (p = 0.04). CONCLUSIONS: The results suggest that P72R polymorphisms may be associated with an increased PCM risk and may affect OS of PCM patients. However, we saw no consistent results of the polymorphism effect on apoptosis and necrosis in cell cultures derived from PCM patients. Further studies are need in this regard. PMID- 29333598 TI - Rainer Walter Guillery FRS, 28th August 1929-7th April 2017. PMID- 29333599 TI - Developmental coordination disorder: the role of executive functions. PMID- 29333600 TI - The model of children's social adjustment under the gender-roles absence in single-parent families. AB - This study aimed to evaluate the effects of the gender-role types and child rearing gender-role attitude of the single-parents, as well as their children's gender role traits and family socio-economic status, on social adjustment. We recruited 458 pairs of single parents and their children aged 8-18 by purposive sampling. The research tools included the Family Socio-economic Status Questionnaire, Sex Role Scales, Parental Child-rearing Gender-role Attitude Scale and Social Adjustment Scale. The results indicated: (a) single mothers' and their daughters' feminine traits were both higher than their masculine traits, and sons' masculine traits were higher than their feminine traits; the majority gender-role type of single parents and their children was androgyny; significant differences were found between children's gender-role types depending on different raiser, the proportion of girls' masculine traits raised by single fathers was significantly higher than those who were raised by single mothers; (b) family socio-economic status and single parents' gender-role types positively influenced parental child-rearing gender-role attitude, which in turn, influenced the children's gender traits, and further affected children's social adjustment. PMID- 29333602 TI - Children's Perceptions of Economic Groups in a Context of Limited Access to Opportunities. AB - Children (N = 267, ages 8-14 years, M = 11.61 years, middle to upper-middle income) made predictions regarding groups of same-aged peers from high-wealth and low-wealth backgrounds. The context involved granting access to a special opportunity. From middle childhood to early adolescence children increasingly expected both high- and low-wealth groups to want access to opportunities for their own group. However, children viewed high-wealth groups as motivated in part by selfishness and low-wealth groups as concerned in part with broader economic inequality. Finally, the higher children's family income, the more they expected group-serving tendencies. These findings revealed children's perceptions of exclusive preferences between economic groups, negative stereotypes about high wealth children, and awareness of some of the constraints faced by low-wealth children. PMID- 29333601 TI - Risk factors for stress urinary incontinence after native-tissue vaginal repair of pelvic organ prolapse. AB - OBJECTIVE: To identify risk factors for postoperative stress urinary incontinence (POSUI) after native-tissue prolapse repair without a concomitant anti incontinence procedure. METHODS: The present single-center retrospective study included women with genital prolapse who underwent high uterosacral ligament suspension without a concomitant anti-incontinence procedure during 2008-2013. Univariate and multivariate analyses were performed to identify risk factors for POSUI (identified through clinical interview and International Consultation on Incontinence Modular Questionnaire-Short Form [ICIQ-SF] self-administration) at 6 months. RESULTS: In total, 87 (20.9%) of 417 women developed POSUI. Preoperative stress urinary incontinence (SUI) and urodynamically diagnosed SUI were significantly associated with POSUI; moreover, women with POSUI had a higher preoperative ICIQ-SF score, a lower opening detrusor pressure, and a lower detrusor pressure at maximum flow than did women without POSUI (P<0.05 for all comparisons). In the multivariate analysis, preoperative SUI (odds ratio 3.11), a detrusor pressure at maximum flow of less than 30 cm H2 O (odds ratio 2.93), and urodynamically diagnosed SUI (odds ratio 2.26) were independent risk factors for POSUI. CONCLUSION: Preoperative urodynamic parameters, obtained before prolapse repair surgery, were associated with POSUI and could be useful in providing adequate counseling to facilitate decision making on whether to add a concomitant anti-incontinence procedure. PMID- 29333603 TI - Could conjunctivitis in patients with atopic dermatitis treated with dupilumab be caused by colonization with Demodex and increased interleukin-17 levels? PMID- 29333605 TI - Report on oral health status and treatment needs of 5-15 years old children with sensory deficits in Chennai, India. PMID- 29333604 TI - Adiponectin inhibits inflammatory cytokines production by Beclin-1 phosphorylation and B-cell lymphoma 2 mRNA destabilization: role for autophagy induction. AB - BACKGROUND AND PURPOSE: Adiponectin potently suppresses inflammatory mediator production. Autophagy is known to play a critical role in the modulation of inflammatory responses by adiponectin. However, the underlying mechanisms are not clearly understood. Interaction between Beclin-1 and B-cell lymphoma 2 (Bcl-2) is a critical event in autophagy induction. We examined the effects of globular adiponectin (gAcrp) on the Beclin-1/Bcl-2 association and its underlying mechanisms. EXPERIMENTAL APPROACH: The effect of gAcrp on the interaction between Beclin-1 and Bcl-2 was examined by immunoprecipitation followed by Western blotting. To elucidate the underlying mechanisms, we determined the effects of gAcrp on Beclin-1 phosphorylation and Bcl-2 mRNA stability, and investigated their role in the suppression of inflammatory mediators using pharmacological inhibitors and transient target gene knockdown. KEY RESULTS: Globular adiponectin disrupted the association between Beclin-1 and Bcl-2 and increased Beclin-1 phosphorylation at Thr119 , critical residue for binding with Bcl-2, via a death associated protein kinase-1 (DAPK1)-dependent mechanism. Moreover, gAcrp reduced Bcl-2 expression via Bcl-2 mRNA destabilization, without significantly affecting Bcl-2 promoter activity and protein degradation, which was mediated by tristetraprolin (TTP) induction. Finally, DAPK1 and TTP were shown to play key roles in gAcrp-induced autophagosome formation and suppression of LPS-stimulated TNF-alpha and IL-1beta expression. CONCLUSION AND IMPLICATIONS: Beclin-1 phosphorylation and Bcl-2 mRNA destabilization mediated by DAPK1 and TTP are crucial events leading to autophagy and the suppression of inflammatory cytokine production by gAcrp. These results provide novel mechanisms underlying adiponectin's modulation of inflammatory responses. DAPK and TTP are potential therapeutic targets for the management of inflammation. PMID- 29333606 TI - Genetic relationships among Vietnamese local pigs investigated using genome-wide SNP markers. AB - Vietnam is one of the most important countries for pig domestication, and a total of 26 local breeds have been reported. In the present study, genetic relationships among the various pig breeds were investigated using 90 samples collected from local pigs (15 breeds) in 15 distantly separated, distinct areas of the country and six samples from Landrace pigs in Hanoi as an out-group of a common Western breed. All samples were genotyped using the Illumina Porcine SNP60 v2 Genotyping BeadChip. We used 15 160-15 217 SNPs that showed a high degree of polymorphism in the Vietnamese breeds for identifying genetic relationships among the Vietnamese breeds. Principal components analysis showed that most pigs indigenous to Vietnam formed clusters correlated with their original geographic locations. Some Vietnamese breeds formed a cluster that was genetically related to the Western breed Landrace, suggesting the possibility of crossbreeding. These findings will be useful for the conservation and management of Vietnamese local pig breeds. PMID- 29333607 TI - Arabidopsis MLO2 is a negative regulator of sensitivity to extracellular reactive oxygen species. AB - The atmospheric pollutant ozone (O3 ) is a strong oxidant that causes extracellular reactive oxygen species (ROS) formation, has significant ecological relevance, and is used here as a non-invasive ROS inducer to study plant signalling. Previous genetic screens identified several mutants exhibiting enhanced O3 sensitivity, but few with enhanced tolerance. We found that loss-of function mutants in Arabidopsis MLO2, a gene implicated in susceptibility to powdery mildew disease, exhibit enhanced dose-dependent tolerance to O3 and extracellular ROS, but a normal response to intracellular ROS. This phenotype is increased in a mlo2 mlo6 mlo12 triple mutant, reminiscent of the genetic redundancy of MLO genes in powdery mildew resistance. Stomatal assays revealed that enhanced O3 tolerance in mlo2 mutants is not caused by altered stomatal conductance. We explored modulation of the mlo2-associated O3 tolerance, powdery mildew resistance, and early senescence phenotypes by genetic epistasis analysis, involving mutants with known effects on ROS sensitivity or antifungal defence. Mining of publicly accessible microarray data suggests that these MLO proteins regulate accumulation of abiotic stress response transcripts, and transcript accumulation of MLO2 itself is O3 responsive. In summary, our data reveal MLO2 as a novel negative regulator in plant ROS responses, which links biotic and abiotic stress response pathways. PMID- 29333608 TI - The synergistic effect of PDT and oxacillin on clinical isolates of Staphylococcus aureus. AB - BACKGROUND: Staphylococcus aureus is a major pathogen in clinical microbiology. It is known to cause infections at various body sites and can be life threatening. The development of resistance to many well-established antibiotic treatments and the prevalence of methicillin-resistant S. aureus (MRAS) among hospital patients and the general community pose challenges in treating the pathogen. The antimicrobial effect of photodynamic therapy (PDT) has been a subject of study for a long time and can offer new strategies for dealing with resistant strains. OBJECTIVE: In our study, we searched for a positive synergistic relationship between PDT and the standard antibiotics used to treat S. aureus and MRSA infections. MATERIALS AND METHODS: The phototoxic profile of deuteroporphyrin (DP) in both resistant and susceptible clinical strains of S. aureus was determined by plating of treated and untreated broth cultures. Electron microscopy imaging was done to explore possible sites of damage and free radical accumulation in the cells during DP-PDT. Minimal inhibitory concentration (MIC) of oxacillin, gentamicin, vancomycin, rifampin, and fusidic acid was determined using the broth dilution method, and the checkerboard method was used to detect and evaluate the synergistic potential of DP-PDT and antibiotic combinations. A synergistic combination was further characterized using broth cultures and plating. RESULTS: DP-PDT using a light dose of 15 J/cm2 showed a bactericidal effect even with a small concentration of 17 MUM DP. Transmission electron microscopy indicated profound damage in the cell wall and cell membrane, and the appearance of mesosome-like structures. Free radicals tend to localize in the cell membrane and inside the mesosome. No synergistic effect was detected by combining PDT with gentamicin, vancomycin, rifampin, and fusidic acid treatments. A positive synergistic effect was observed only in DP-PDT-oxacillin combined treatment using the checkerboard method. The effect was observed in clinical antibiotic-resistant isolates after DP-PDT using a light dose of 46 J/cm2 and small concentrations of DP. Oxacillin MIC decreased below 2 MUg/ml in resistant strains under such conditions. Cultures which did not undergo new cycles of DP PDT recovered their original oxacillin resistance after a few generations. CONCLUSIONS: PDT with porphyrins shows possible new therapeutic options in treating drug-resistant S. aureus at body sites suitable for irradiation. The synergistic effect of DP-PDT with oxacillin on clinical strains illustrates the potential of PDT to augment traditional antibiotic treatment based on cell wall inhibitors. Lasers Surg. Med. 50:535-551, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29333609 TI - Runs of homozygosity reveal genome-wide autozygosity in Italian sheep breeds. AB - The availability of dense single nucleotide polymorphism (SNP) assays allows for the determination of autozygous segments based on runs of consecutive homozygous genotypes (ROH). The aim of the present study was to investigate the occurrence and distribution of ROH in 21 Italian sheep breeds using medium-density SNP genotypes in order to characterize autozygosity and identify genomic regions that frequently appeared in ROH within individuals, namely ROH islands. After filtering, the final number of animals and SNPs retained for analyses were 502 and 46 277 respectively. A total of 12 302 ROH were identified. The mean number of ROH per breed ranged from 10.58 (Comisana) to 44.54 (Valle del Belice). The average length of ROH across breeds was 4.55 Mb and ranged from 3.85 Mb (Biellese) to 5.51 Mb (Leccese). Valle del Belice showed the highest value of inbreeding on the basis of ROH (FROH = 0.099), whereas Comisana showed the lowest (FROH = 0.016), and high standard deviation values revealed high variability in autozygosity levels within each breed. Differences also existed in the length of ROH. Analysis of the distribution of ROH according to their size showed that, for all breeds, the majority of the detected ROH were <10 Mb in length, with a few long ROH >25 Mb. The levels of ROH that we estimated here reflect the inbreeding history of the investigated sheep breeds. These results also highlight that ancient and recent inbreeding have had an impact on the genome of the Italian sheep breeds and suggest that several animals have experienced recent autozygosity events. Comisana and Bergamasca appeared as the less consanguineous breeds, whereas Barbaresca, Leccese and Valle del Belice showed ROH patterns typically produced by recent inbreeding. Moreover, within the genomic regions most commonly associated with ROH, several candidate genes were detected. PMID- 29333610 TI - Clinical features and treatment of nonalcoholic fatty liver disease across the Asia Pacific region-the GO ASIA initiative. AB - BACKGROUND: The Gut and Obesity Asia (GO ASIA) workgroup was formed to study the relationships between obesity and gastrointestinal diseases in the Asia Pacific region. AIM: To study factors associated with nonalcoholic steatohepatitis (NASH) and advanced fibrosis, and medical treatment of biopsy-proven nonalcoholic fatty liver disease (NAFLD) patients. METHODS: Retrospective study of biopsy-proven NAFLD patients from centres in the GO ASIA Workgroup. Independent factors associated with NASH and with advanced fibrosis on binary logistic regression analyses in a training cohort were used for the development of their corresponding risk score, which were validated in a validation cohort. RESULTS: We included 1008 patients from nine centres across eight countries (NASH 62.9%, advanced fibrosis 17.2%). Independent predictors of NASH were body mass index >=30 kg/m2 , diabetes mellitus, dyslipidaemia, alanine aminotransferase >=88 U/L and aspartate aminotransferase >=38 U/L, constituting the Asia Pacific NASH risk score. A high score has a positive predictive value of 80%-83% for NASH. Independent predictors of advanced fibrosis were age >=55 years, diabetes mellitus and platelet count <150 * 109 /L, constituting the Asia-Pacific NAFLD advanced fibrosis risk score. A low score has a negative predictive value of 95% 96% for advanced fibrosis. Only 1.7% of patients were referred for structured lifestyle program, 4.2% were on vitamin E, and 2.4% were on pioglitazone. CONCLUSIONS: More severe liver disease can be suspected or ruled out based on factors identified in this study. Utilisation of structured lifestyle program, vitamin E and pioglitazone was limited despite this being a cohort of biopsy proven NAFLD patients with majority of patients having NASH. PMID- 29333611 TI - Cognitive dysfunction after generalized tonic-clonic status epilepticus in adults. AB - OBJECTIVES: Generalized tonic-clonic status epilepticus (GTC-SE) is considered a risk for cognitive impairment. Research with standardized tools is scarce and non conclusive. We systematically assessed short-term and long-term cognitive function after GTC-SE. MATERIALS AND METHODS: Thirty-three patients were tested after the clinical post-ictal phase of GTC-SE (timepoint 1) and again after 1 year (timepoint 2). Twenty controls were examined with the same tests. Tests from Cambridge Neuropsychological Test Automated Battery were used. Motor screening test (MOT) assessed motor speed, delayed matching to sample (DMS) and paired associates learning (PAL) assessed memory, and Stockings of Cambridge (SOC) assessed executive function. Estimated premorbid IQ and radiologically visible brain lesions were controlled for in adjusted results. Outcome measures were z scores, the number of standard deviations a score deviates from the mean of a norm population. RESULTS: At timepoint 1, unadjusted patient results were significantly below both norm and control group performances on all subtests. Patient mean was 1.9 z-scores below controls (P < .001) on PAL total errors. Results remained significant for PAL and DMS after adjustments. Patient results improved at timepoint 2, but memory tests remained lower than norms and for controls. An executive dysfunction emerged on the most complex SOC stage (z-score difference -0.83; P = .008, adjusted difference -0.94; P = .02). CONCLUSIONS: Memory and learning impairment in the early phase after SE and late developing executive dysfunction remained significant after adjusting for estimated premorbid IQ and pre-SE brain lesions. Results suggest that GTC-SE poses a risk for cognitive impairment. PMID- 29333612 TI - Fosfomycin residues in colostrum: Impact on morpho-physiology and microbiology of suckling piglets. AB - Fosfomycin is a broad-spectrum bactericidal antibiotic widely used in pig farms for the treatment of a wide variety of bacterial infections. In this study, the elimination of disodium fosfomycin in colostrum/milk of the sow and the impact of this antibiotic on the microbiota and intestinal morpho-physiology of suckling piglets were analyzed. The average amount of fosfomycin eliminated in colostrum (after administration of 15 mg/kg IM) during the first 10 hr postpartum was 0.85 MUg/ml, and the mean residual amount ingested by the piglets was 0.26 mg/kg. The elimination profile of fosfomycin concentrations in colostrum occurs at a time of profound changes in the morpho-physiology of the gastrointestinal tract of the piglet. However, the studied concentrations did not produce imbalances on the microbiota or on the morpho-physiology of the gastrointestinal tract of the piglet. Concentrations of fosfomycin were maintained in the mammary gland above the MIC for more than 8 hr for pathogenic bacteria of productive importance. This would indicate that fosfomycin may be considered safe for the specific treatment of bacterial infectious processes in sows during the peri- and postpartum period. This first study with disodium fosfomycin stimulates awareness in the proper use of antimicrobials at farrowing. PMID- 29333613 TI - Pharmacokinetics, pharmacodynamics and clinical use of trazodone and its active metabolite m-chlorophenylpiperazine in the horse. AB - Trazodone is a serotonin receptor antagonist and reuptake inhibitor used extensively as an anxiolytic in human and small animal veterinary medicine. The aims of this study were to determine the pharmacokinetics of oral trazodone in experimental horses and to evaluate the effect of oral trazodone in clinical horses. Six experimental horses were administered trazodone at 7.5 or 10 mg/kg. Plasma concentrations of trazodone and its metabolite (m-CPP) were determined via UPLC-MS/MS. Noncompartmental pharmacokinetic analysis, sedation and ataxia scores were determined. Trazodone was rapidly absorbed after oral administration with a maximum concentration of 2.5-4.1 MUg/ml and half-life of the terminal phase of approximately 7 hr. The metabolite was present at low levels in all horses, representing only 2.5% of the total area under the curve. In experimental horses, concentration-dependent sedation and ataxia were noted, lasting up to 12 hr. For clinical cases, medical records of horses treated with trazodone for various abnormal behaviours were reviewed and data were summarized. Trazodone was successful in modifying behavioural problems to some degree in 17 of 18 clinical cases. Tolerance and subsequent lack of drug effect occurred in two of 18 clinical cases following 14 or 21 days of use. In both populations of horses, adverse effects attributed to trazodone include oversedation, muscle fasciculations and transient arrhythmias. PMID- 29333614 TI - The effect of risk factor misclassification on the partial population attributable risk. AB - The partial population attributable risk (pPAR) is used to quantify the population-level impact of preventive interventions in a multifactorial disease setting. In this paper, we consider the effect of nondifferential risk factor misclassification on the direction and magnitude of bias of pPAR estimands and related quantities. We found that the bias in the uncorrected pPAR depends nonlinearly and nonmonotonically on the sensitivities, specificities, relative risks, and joint prevalence of the exposure of interest and background risk factors, as well as the associations between these factors. The bias in the uncorrected pPAR is most dependent on the sensitivity of the exposure. The magnitude of bias varies over a large range, and in a small region of the parameter space determining the pPAR, the direction of bias is away from the null. In contrast, the crude PAR can only be unbiased or biased towards the null by risk factor misclassification. The semiadjusted PAR is calculated using the formula for the crude PAR but plugs in the multivariate-adjusted relative risk. Because the crude and semiadjusted PARs continue to be used in public health research, we also investigated the magnitude and direction of the bias that may arise when using these formulae instead of the pPAR. These PAR estimators and their uncorrected counterparts were calculated in a study of risk factors for colorectal cancer in the Health Professionals Follow-up Study, where it was found that because of misclassification, the pPAR for low folate intake was overestimated with a relative bias of 48%, when red meat and alcohol intake were treated as misclassified risk factors that are not modified, and when red meat was treated as the modifiable risk factor, the estimated value of the pPAR went from 14% to 60%, further illustrating the extent to which misclassification can bias estimates of the pPAR. PMID- 29333615 TI - Circular RNA hsa_circ_0000567 can be used as a promising diagnostic biomarker for human colorectal cancer. AB - BACKGROUND: Recent studies have revealed that circular RNAs are involved in the biological process of some kinds of human cancers. However, little is known about their diagnostic values and functions in colorectal cancer (CRC). METHODS: The expression levels of hsa_circ_0000567 in 102 paired CRC tissues and adjacent noncancerous tissues, 5 CRC cell lines, and a normal colorectal epithelial cell line were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The correlations between hsa_circ_0000567 expression levels and the clinicopathological factors of patients with CRC were analyzed. Furthermore, the loss-of-function assay was performed to investigate the functions of hsa_circ_0000567 in vitro. Finally, a receiver operating characteristic (ROC) curve was established to evaluate the diagnostic value of hsa_circ_0000567. RESULTS: Hsa_circ_0000567 expression was significantly downregulated in CRC tissues and CRC cell lines. In addition, the decreased hsa_circ_0000567 expression in CRC was negatively correlated with tumor size (P = .011), lymph metastasis (P = .003), distal metastasis (P < .0001), and tumor-node-metastasis (TNM) stage (P = .003) in CRC. Moreover, knockdown of hsa_circ_0000567 promoted CRC cells proliferation and migration in vitro. Importantly, the area under the ROC curve (AUC) was 0.8653, which indicates hsa_circ_0000567 can serve as a diagnostic biomarker. CONCLUSION: Hsa_circ_0000567 may be a novel suppressor and a potential diagnosis biomarker in CRC. PMID- 29333616 TI - Determination of vitamins K1 , MK-4, and MK-7 in human serum of postmenopausal women by HPLC with fluorescence detection. AB - BACKGROUND: New high-performance liquid chromatography (HPLC) method was developed for the determination of vitamin K1 and two forms of vitamin K2 (MK-4 and MK-7) in human serum, and the levels of vitamin K were determined in 350 samples of postmenopausal women. METHODS: Vitamin K was determined by HPLC with fluorescence detection after postcolumn zinc reduction. The detection was performed at 246 nm (excitation) and 430 nm (emission). The internal standard and 2 mL of ethanol were added to 500 MUL of serum. The mixture was extracted with 4 mL of hexane, and solid phase extraction was then used. RESULTS: The HLPC method was fully validated. The intra- and interday accuracy and precision were evaluated on two QC samples by multiple analysis, and CV were less than 10%. The limit of quantification for MK-4 was found at 0.04 ng/mL, for K1 0.03 ng/mL, and for MK-7 0.03 ng/mL. The mean recoveries of the corresponding compounds were 98% 110%. Serum levels of MK-4, K1 , and MK-7 in postmenopausal women with osteoporosis were 0.890 +/- 0.291 ng/mL, 0.433 +/- 0.394 ng/mL, and 1.002 +/- 1.020 ng/mL, respectively (mean +/- SD). Serum levels of MK-4, K1 , and MK-7 in postmenopausal women without osteoporosis were 0.825 +/- 0.266 ng/mL, 0.493 +/- 0.399 ng/mL, and 1.186 +/- 1.076 ng/mL, respectively (mean +/- SD). CONCLUSION: New HPLC method for the determination of vitamins K1 , MK-4, and MK-7 in serum was evaluated and validated. This method is highly specific and sensitive with the low limit of quantification. PMID- 29333617 TI - A perceptive plus in Parkinson's disease. PMID- 29333618 TI - Age-associated urethral dysfunction in urethane-anesthetized rats. AB - AIMS: We aimed to investigate the age-associated changes in movement coordination between the urinary bladder and the urethra in rats. METHODS: A total of 17 female Sprague-Dawley rats were used. The rats were divided into young (3 months old) and middle-aged (12-15 months old) groups. In both groups, isovolumetric cystometry and urethral perfusion pressure (UPP) measurements were performed under urethane anesthesia. After the rhythmic bladder contractions stabilized, L arginine, a nitric oxide (NO) substrate (100 mg/kg), was administered intravenously in both groups. Subsequently, N-nitro-L-arginine methyl ester hydrochloride (L-NAME) (50 mg/kg) was injected intravenously to inhibit NO synthase activity in both groups. RESULTS: UPP change, defined as UPP nadir minus baseline UPP, was significantly smaller in middle-aged rats (64%) than in young rats (P < 0.05). The mean amplitude of high-frequency oscillations (HFOs) of the external urethral sphincter was also significantly lower (62%) in middle-aged rats than that in young rats (P < 0.05). Urethral contraction during UPP change was also noted in middle-aged rats. This urethral contraction disappeared after L arginine administration. UPP nadir during bladder contraction was inhibited by L NAME in both groups. UPP change was greater in middle-aged rats than in young rats, and 3 out of 9 middle-aged rats showed a detrusor-sphincter dyssynergia pattern after L-NAME. CONCLUSIONS: The results indicated that aging induces dysfunction in movement coordination between the urinary bladder and the urethra. Thus, age-associated urethral dysfunctions may lead to inefficient voiding with increased post-void residual urine volume, which is often observed in elderly populations. PMID- 29333620 TI - In-center hemodialysis education: Challenges and innovations in training of fellows in nephrology. AB - The in-center dialysis unit and practice of dialysis, in the current multi-team approach, requires knowledge and skills in all the domains including medical expert, communicator, collaborator, scholar, health advocate, and leader. We are tasked as a community, to embrace and incentivize new innovations and technology to address these needs for our post graduate trainees. These innovations must address the basic principles of dialysis, quality improvement, technical and procedural skills as well as leadership and administration skills. The teaching methods and innovations must also be challenged to demonstrate the translation into adoption and improvements in practice to demonstrate success. This article will review the current state of the training curriculum in Nephrology for in center hemodialysis and address some of the recent innovations. PMID- 29333619 TI - Surrogate scale for evaluating respiratory function based on complete blood count parameters. AB - BACKGROUND: In this study, we aimed to identify a simple method for evaluating respiratory function using complete blood count parameters. METHODS: The complete blood count parameters, including red blood cell (RBC) count, hemoglobin (Hb) level, lymphocyte (Lym) and platelet (Plt) count, and partial pressure of oxygen (PO2 ) level, were measured using automated analyzers in patients with chronic obstructive pulmonary disease (COPD), aged subjects, and young subjects (control group). The red cell index (RCI) was calculated using the following equation: (RBC * Hb)/(Lym * Plt); in theory, the RCI is inversely proportional to the respiratory function. RESULTS: We observed a significant relationship between the RCI and PCO2 values, and between the RCI and FEV1/FVC values (P < .05). The RCI in the COPD, and aged subject groups were all significantly higher than that in the control group (P < .05). The cutoff value for normal respiratory function was 2.3. The positive rates for an abnormal increase in RCI were also considerably higher in each observation group than in the control group (P < .05). CONCLUSION: The RCI can be considered as a simple and effective tool for evaluating respiratory function. PMID- 29333621 TI - Characterization of mouse neuro-urological dynamics in a novel decerebrate arterially perfused mouse (DAPM) preparation. AB - AIM: To develop the decerebrate arterially perfused mouse (DAPM) preparation, a novel voiding model of the lower urinary tract (LUT) that enables in vitro-like access with in vivo-like neural connectivity. METHODS: Adult male mice were decerebrated and arterially perfused with a carbogenated, Ringer's solution to establish the DAPM. To allow distinction between central and peripheral actions of interventions, experiments were conducted in both the DAPM and in a "pithed" DAPM which has no brainstem or spinal cord control. RESULTS: Functional micturition cycles were observed in response to bladder filling. During each void, the bladder showed strong contractions and the external urethral sphincter (EUS) showed bursting activity. Both the frequency and amplitude of non-voiding contractions (NVCs) in DAPM and putative micromotions (pMM) in pithed DAPM increased with bladder filling. Vasopressin (>400 pM) caused dyssynergy of the LUT resulting in retention in DAPM as it increased tonic EUS activity and basal bladder pressure in a dose-dependent manner (basal pressure increase also noted in pithed DAPM). Both neuromuscular blockade (vecuronium) and autonomic ganglion blockade (hexamethonium), initially caused incomplete voiding, and both drugs eventually stopped voiding in DAPM. Intravesical acetic acid (0.2%) decreased the micturition interval. Recordings from the pelvic nerve in the pithed DAPM showed bladder distention-induced activity in the non-noxious range which was associated with pMM. CONCLUSIONS: This study demonstrates the utility of the DAPM which allows a detailed characterization of LUT function in mice. PMID- 29333622 TI - Metabolic acidosis and anaemia associated with dorzolamide in a patient with impaired renal function. AB - Topical carbonic anhydrase inhibitors (CAI), used for treatment of glaucoma, are generally regarded as safe and unconnected with systemic side effects. We report an unusual case of fatigue, metabolic acidosis, and normocytic anaemia associated with ocular administration of the CAI, dorzolamide, in a patient with impaired renal function. In chronic kidney disease, where CAI elimination may be decreased, and patients prone to develop metabolic acidosis, systemic absorption of ocular administered CAI could lead to rare, but potentially serious adverse reaction, that are a consequence of inhibition of extraocular carbonic anhydrase isoenzymes. PMID- 29333624 TI - Turning fifty: join the FEBS Letters anniversary celebrations!: The FEBS Letters Editorial Team. PMID- 29333623 TI - Evaluation of universal immunohistochemical screening of sebaceous neoplasms in a service setting. AB - BACKGROUND: Muir-Torre syndrome (MTS) is a subtype of Lynch syndrome, which encompasses the combination of sebaceous skin tumours or keratoacanthomas and internal malignancy, due to mutations in DNA mismatch repair genes. Sebaceous neoplasms (SNs) may occur before other malignancies, and may lead to the diagnosis, which allows testing of other family members, cancer surveillance, risk-reducing surgery or prevention therapies. AIM: To evaluate the efficacy of universal immunohistochemistry (IHC) screening of SNs in a service setting. METHODS: Patients with SNs were ascertained by a regional clinical pathology service over a 3-year period. Results of tumour IHC, clinical genetics notes and germline genetic testing were retrospectively reviewed. RESULTS: In total, 62 patients presented with 71 SNs; 9 (15%) of these patients had previously diagnosed MTS. Tumour IHC was performed for 50 of the 53 remaining patients (94%); 26 (52%) had loss of staining of one or more mismatch repair proteins. Fifteen patients were referred to the Clinical Genetics department, and 10 patients underwent germline genetic testing. Two had a new diagnosis of MTS confirmed, with heterozygous pathogenic mutations detected in the MSH2 and PMS2 genes (diagnostic yield 20%). The PMS2 mutation was identified in a 57-year-old woman with a sebaceous adenoma and history of endometrial cancer; to our knowledge, this is the first time a PMS2 mutation has been reported in MTS. CONCLUSIONS: Universal IHC screening of SNs is an effective method to identify cases for further genetic evaluation. Rates of referral to clinical genetics were only moderate (58%). Increased awareness of MTS could help improve the rate of onward referral. PMID- 29333625 TI - K3 Li3 Gd7 (BO3 )9 : A New Gadolinium-Rich Orthoborate for Cryogenic Magnetic Cooling. AB - Magnetic cooling technology based on magnetocaloric effect (MCE) has attracted great interest in obtaining extremely low temperatures, for example, for space exploration. Here, we grew a new gadolinium-rich orthoborate K3 Li3 Gd7 (BO3 )9 (1) as a promising cryogenic magnetic coolant. It exhibits a complicated three dimensional framework constructed from BO3 groups and gadolinium-oxygen chains. The Gd-O chain consists of two types of clusters of Gd3 O20 and Gd3 O19 interconnection by Gd(4)O8 polyhydron. Due to its high gadolinium concentration, a large -DeltaSm of 56.6 J kg-1 K-1 for 1 was obtained at 2 K and DeltaH=7 T, much larger than that of the commercial benchmark Gd3 Ga5 O12 (GGG) crystal (38.4 J kg-1 K-1 ), suggesting it to be an excellent MCE material. PMID- 29333626 TI - Effect of astaxanthin on the quality of boar sperm stored at 17 degrees C, incubated at 37 degrees C or under in vitro conditions. AB - The aim of the study was to investigate the effect of the antioxidant astaxanthin on boar semen. Twenty ejaculates from 10 boars (two ejaculates/boar) were extended and split in three groups: semen control (SC), solvent control (C; semen with dimethyl sulfoxide, the diluent of astaxanthin) and semen with astaxanthin (A) in concentration 0.5 MUmol/L. Sperm quality parameters (motility and kinetics, morphology, viability, functional integrity of sperm plasma membrane by Hypo-Osmotic Swelling Test [HOST] and DNA integrity) were assessed at 0, 24 and 48 hr of storage at 17 degrees C (experiment I), before (0 hr) and after (1 hr) of sperm thermal resistance assay at 37 degrees C (experiment II) and finally before (0 hr) and after (1 hr) sperm in vitro incubation (38.5 degrees C, 5% CO2 , maximum humidity [experiment III]). In experiment I, group A performed overall better than group SC and as a tendency better than group C regarding viability. Total motility, rapid spermatozoa and HOST remained constant across time in group A, whereas they decreased in the remaining groups. In experiment II, regarding motility and viability, group A displayed better results across time than the other two groups. In experiment III, viability and total motility decreased in groups SC and C, while in group A, these parameters were not significantly different between the examination time points. In conclusion, astaxanthin has a beneficial and protective effect on boar semen quality under the investigated conditions. PMID- 29333627 TI - Saturable Absorption in 2D Ti3 C2 MXene Thin Films for Passive Photonic Diodes. AB - MXenes comprise a new class of 2D transition metal carbides, nitrides, and carbonitrides that exhibit unique light-matter interactions. Recently, 2D Ti3 CNTx (Tx represents functional groups such as ?OH and ?F) was found to exhibit nonlinear saturable absorption (SA) or increased transmittance at higher light fluences, which is useful for mode locking in fiber-based femtosecond lasers. However, the fundamental origin and thickness dependence of SA behavior in MXenes remain to be understood. 2D Ti3 C2 Tx thin films of different thicknesses are fabricated using an interfacial film formation technique to systematically study their nonlinear optical properties. Using the open aperture Z-scan method, it is found that the SA behavior in Ti3 C2 Tx MXene arises from plasmon-induced increase in the ground state absorption at photon energies above the threshold for free carrier oscillations. The saturation fluence and modulation depth of Ti3 C2 Tx MXene is observed to be dependent on the film thickness. Unlike other 2D materials, Ti3 C2 Tx is found to show higher threshold for light-induced damage with up to 50% increase in nonlinear transmittance. Lastly, building on the SA behavior of Ti3 C2 Tx MXenes, a Ti3 C2 Tx MXene-based photonic diode that breaks time-reversal symmetry to achieve nonreciprocal transmission of nanosecond laser pulses is demonstrated. PMID- 29333628 TI - Re(bpy)(CO)3 Cl Immobilized on Bipyridine-Periodic Mesoporous Organosilica for Photocatalytic CO2 Reduction. AB - This paper describes the physicochemical properties of a rhenium (Re) complex [Re(bpy)(CO)3 Cl] immobilized on a bipyridine-periodic mesoporous organosilica (BPy-PMO) acting as a solid support. The immobilized Re complex generated a metal to-ligand charge transfer absorption band at 400 nm. This wavelength is longer than that exhibited by Re(bpy)(CO)3 Cl in the polar solvent acetonitrile (371 nm) and is almost equal to that in nonpolar toluene (403 nm). The photocatalytic activity of this heterogeneous Re complex was lower than that of a homogeneous Re complex due to the reduced phosphorescence lifetime resulting from immobilization. However, the catalytic activity was enhanced by the co immobilization of the ruthenium (Ru) photosensitizer [Ru(bpy)3 ]2+ on the PMO pore surfaces. Quantum chemical calculations suggest that electron transfer between the Ru and Re complexes occurs through interactions between the molecular orbitals in the pore walls. These results should have applications to the design of efficient heterogeneous CO2 reduction photocatalysis systems. PMID- 29333629 TI - Surface Engineering for Extremely Enhanced Charge Separation and Photocatalytic Hydrogen Evolution on g-C3 N4. AB - Reinforcing the carrier separation is the key issue to maximize the photocatalytic hydrogen evolution (PHE) efficiency of graphitic carbon nitride (g C3 N4 ). By a surface engineering of gradual doping of graphited carbon rings within g-C3 N4 , suitable energy band structures and built-in electric fields are established. Photoinduced electrons and holes are impelled into diverse directions, leading to a 21-fold improvement in the PHE rate. PMID- 29333630 TI - Efficient Supercapacitor Energy Storage Using Conjugated Microporous Polymer Networks Synthesized from Buchwald-Hartwig Coupling. AB - Supercapacitors have received increasing interest as energy storage devices due to their rapid charge-discharge rates, high power densities, and high durability. In this work, novel conjugated microporous polymer (CMP) networks are presented for supercapacitor energy storage, namely 3D polyaminoanthraquinone (PAQ) networks synthesized via Buchwald-Hartwig coupling between 2,6 diaminoanthraquinone and aryl bromides. PAQs exhibit surface areas up to 600 m2 g 1 , good dispersibility in polar solvents, and can be processed to flexible electrodes. The PAQs exhibit a three-electrode specific capacitance of 576 F g-1 in 0.5 m H2 SO4 at a current of 1 A g-1 retaining 80-85% capacitances and nearly 100% Coulombic efficiencies (95-98%) upon 6000 cycles at a current density of 2 A g-1 . Asymmetric two-electrode supercapacitors assembled by PAQs show a capacitance of 168 F g-1 of total electrode materials, an energy density of 60 Wh kg-1 at a power density of 1300 W kg-1 , and a wide working potential window (0 1.6 V). The asymmetric supercapacitors show Coulombic efficiencies up to 97% and can retain 95.5% of initial capacitance undergo 2000 cycles. This work thus presents novel promising CMP networks for charge energy storage. PMID- 29333631 TI - Is ejection fraction in heart failure a limitation or an opportunity? PMID- 29333632 TI - Binding of Cu+ and Cu2+ with peptides: Peptides = oxytocin, Arg8 -vasopressin, bradykinin, angiotensin-I, substance-P, somatostatin, and neurotensin. AB - The intrinsic binding ability of 7 natural peptides (oxytocin, arg8 -vasopressin, bradykinin, angiotensin-I, substance-P, somatostatin, and neurotensin) with copper in 2 different oxidation states (CuI/II ) derived from different Cu+/2+ precursor sources have been investigated for their charge-dependent binding characteristics. The peptide-CuI/II complexes, [M - (n-1)H + nCuI ] and [M - (2n 1)H + nCuII ], are prepared/generated by the reaction of peptides with CuI solution/Cu-target and CuSO4 solution and are analyzed by using matrix-assisted laser desorption/ionization (MALDI) time-of-flight mass spectrometry. The MALDI mass spectra of both [M - (n-1)H + nCuI ] and [M - (2n-1)H + nCuII ] complexes show no mass shift due to the loss of ?H atoms in the main chain ?NH of these peptides by Cu+ and Cu2+ deprotonation. The measured m/z value indicates the reduction of CuI/II oxidation state into Cu0 during MALDI processes. The number and relative abundance of Cu+ bound to the peptides are greater compared with the Cu2+ bound peptides. Oxytocin, arg8 -vasopressin, bradykinin, substance-P, and somatostatin show the binding of 5Cu+ , and angiotensin-I and neurotensin show the binding of 7Cu+ from both CuI and Cu targets, while bradykinin shows the binding of 2Cu2+ , oxytocin, arg8 -vasopressin, angiotensin-I, and substance-P; somatostatin shows the binding of 3Cu2+ ; and neurotensin shows 4Cu2+ binding. The binding of more Cu+ with these small peptides signifies that the bonding characteristics of both Cu+ and Cu2+ are different. The amino acid residues responsible for the binding of both Cu+ and Cu2+ in these peptides have been identified based on the density functional theory computed binding energy values of Cu+ and the fragment transformation method predicted binding preference of Cu2+ for individual amino acids. PMID- 29333633 TI - Long-term outcome of stereotactic body radiotherapy for patients with small hepatocellular carcinoma. AB - AIM: To evaluate the long-term outcome of stereotactic body radiotherapy in patients with small hepatocellular carcinoma who were ineligible for resection or ablation therapies. METHODS: A total of 65 patients with 74 hepatocellular carcinomas (median tumor size 16 mm) were enrolled in the present study. They were treated with the prescribed dose of 48 Gy in four fractions at the isocenter. We extended the observation period and analyzed long-term outcomes, including overall survival, progression-free survival, local control, and various prognostic factors, in these patients. RESULTS: The median follow-up period was 41 months for all patients and 62 months for surviving patients. The 3- and 5 year overall survival rates were 56.3% (95% confidence interval, 44.1-68.5%) and 41.4% (95% confidence interval, 28.7-54.1%), respectively. The 3- and 5-year progression-free survival rates were 25.4% (95% confidence interval, 14.0-36.8%) and 10.6% (95% confidence interval, 1.5-19.8%), respectively. The 3- and 5-year local control rates were both 100% (95% confidence interval 100%). Liver toxicities exceeding grade 3 were observed in 15 patients (23.1%). The proportion of patients who had grade >=3 toxicities did not increase. Adverse effects (grade <=2) presented as significant prognostic factors of overall survival, while TNM stage (T1N0M0) was a significant prognostic factor of progression-free survival after multivariate analysis. CONCLUSIONS: Stereotactic body radiotherapy was effective for patients with small hepatocellular carcinomas who were ineligible for resection or ablation therapies. The incidence of grade >=3 adverse effects did not increase, even after longer follow-up times. PMID- 29333634 TI - Euthanasia and the nature of suffering in addiction. PMID- 29333635 TI - The changing relationship between bronchopulmonary dysplasia and cognition in very preterm infants. AB - AIM: To characterise the relationship between bronchopulmonary dysplasia (BPD) severity and cognition in the post-surfactant era. METHODS: This was a single centre retrospective analysis of a cohort of infants born 2009-2012. Inclusion criteria were as follows: admission within 48 hours of birth, gestational age 22 0/7-31-6/7 weeks, birthweight 400-1500 g and Bayley Scales of Infant and Toddler Development-III testing at 18-26 months corrected age. Infants (n = 151) were classified by BPD severity with the NIH Workshop definition. Generalised linear modelling and multivariate logistic regression were performed. RESULTS: Bayley cognitive score was not associated with BPD severity in univariate (p = 0.053) or multivariate (p = 0.503) analysis. About 27% of infants with no/mild BPD, 33% of infants with moderate BPD and 40% of infants with severe BPD had a cognitive score <85. There was no difference in the odds of cognitive score <85 based on BPD severity in univariate (p = 0.485) or multivariate analysis (p = 0.225). All infants with cognitive score <70 had severe BPD, although the association between cognitive score <70 and BPD severity was not significant. CONCLUSION: We found no independent effect of BPD severity level on cognition. The likelihood of a cognitive score <85 was not associated with BPD severity. PMID- 29333636 TI - In search of markers of pulmonary vascular remodelling in pulmonary hypertension due to left heart disease. PMID- 29333638 TI - Rapid profiling of polymeric phenolic acids in Salvia miltiorrhiza by hybrid data dependent/targeted multistage mass spectrometry acquisition based on expected compounds prediction and fragment ion searching. AB - Phenolic acids are the major water-soluble components in Salvia miltiorrhiza (>5%). According to previous studies, many of them contribute to the cardiovascular effects and antioxidant effects of S. miltiorrhiza. Polymeric phenolic acids can be considered as the tanshinol derived metabolites, e.g., dimmers, trimers, and tetramers. A strategy combined with tanshinol-based expected compounds prediction, total ion chromatogram filtering, fragment ion searching, and parent list-based multistage mass spectrometry acquisition by linear trap quadropole-orbitrap Velos mass spectrometry was proposed to rapid profile polymeric phenolic acids in S. miltiorrhiza. More than 480 potential polymeric phenolic acids could be screened out by this strategy. Based on the fragment information obtained by parent list-activated data dependent multistage mass spectrometry acquisition, 190 polymeric phenolic acids were characterized by comparing their mass information with literature data, and 18 of them were firstly detected from S. miltiorrhiza. Seven potential compounds were tentatively characterized as new polymeric phenolic acids from S. miltiorrhiza. This strategy facilitates identification of polymeric phenolic acids in complex matrix with both selectivity and sensitivity, which could be expanded for rapid discovery and identification of compounds from complex matrix. PMID- 29333637 TI - Increased free Zn2+ correlates induction of sarco(endo)plasmic reticulum stress via altered expression levels of Zn2+ -transporters in heart failure. AB - Zn2+ -homoeostasis including free Zn2+ ([Zn2+ ]i ) is regulated through Zn2+ transporters and their comprehensive understanding may be important due to their contributions to cardiac dysfunction. Herein, we aimed to examine a possible role of Zn2+ -transporters in the development of heart failure (HF) via induction of ER stress. We first showed localizations of ZIP8, ZIP14 and ZnT8 to both sarcolemma and S(E)R in ventricular cardiomyocytes (H9c2 cells) using confocal together with calculated Pearson's coefficients. The expressions of ZIP14 and ZnT8 were significantly increased with decreased ZIP8 level in HF. Moreover, [Zn2+ ]i was significantly high in doxorubicin-treated H9c2 cells compared to their controls. We found elevated levels of ER stress markers, GRP78 and CHOP/Gadd153, confirming the existence of ER stress. Furthermore, we measured markedly increased total PKC and PKCalpha expression and PKCalpha-phosphorylation in HF. A PKC inhibition induced significant decrease in expressions of these ER stress markers compared to controls. Interestingly, direct increase in [Zn2+ ]i using zinc-ionophore induced significant increase in these markers. On the other hand, when we induced ER stress directly with tunicamycin, we could not observe any effect on expression levels of these Zn2+ transporters. Additionally, increased [Zn2+ ]i could induce marked activation of PKCalpha. Moreover, we observed marked decrease in [Zn2+ ]i under PKC inhibition in H9c2 cells. Overall, our present data suggest possible role of Zn2+ transporters on an intersection pathway with increased [Zn2+ ]i and PKCalpha activation and induction of HF, most probably via development of ER stress. Therefore, our present data provide novel information how a well-controlled [Zn2+ ]i via Zn2+ transporters and PKCalpha can be important therapeutic approach in prevention/treatment of HF. PMID- 29333639 TI - Decreasing deceased donor transplant rates among children (<=6 years) under the new kidney allocation system. AB - The Kidney Allocation System (KAS) was implemented in December 2014 with unknown impact on the pediatric waitlist. To understand the effect of KAS on pediatric registrants, deceased donor kidney transplant (DDKT) rate was assessed using interrupted time series analysis and time-to-event analysis. Two allocation eras were defined with an intermediary washout period: Era 1 (01/01/2013-09/01/2014), Era 2 (09/01/2014-03/01/2015), and Era 3(03/01/2015-03/01/2017). When using Cox proportional hazards, there was no significant association between allocation era and DDKT likelihood as compared to Era 1 (Era 3: aHR: 1.07, 95% CI: 0.97-1.18, P = .17). However, this was not consistent across all subgroups. Specifically, while highly sensitized pediatric registrants were consistently less likely to be transplanted than their less sensitized counterparts, this disparity was attenuated in Era 3 (Era 1 aHR: 0.04, 95%CI: 0.01-0.14, P < .001; Era 3 aHR: 0.33, 95% CI: 0.21-0.53, P < .001) whereas the youngest registrants aged 0-6 experienced a 21% decrease in DDKT likelihood in Era 3 as compared to Era 1 (aHR: 0.79, 95% CI: 0.64-0.98, P = .03). Thus, while overall DDKT likelihood remained stable with the introduction of KAS, registrants <= 6 years of age were disadvantaged, warranting further study to ensure equitable access to transplantation. PMID- 29333640 TI - Comparing Mental Health of US Children of Immigrants and Non-Immigrants in 4 Racial/Ethnic Groups. AB - BACKGROUND: To compare the mental health status of children of immigrant (COI) and non-immigrant (NI) parents and to determine whether differences in mental health status between COI and NI vary across 4 racial/ethnic groups. METHODS: We conducted universal mental health screening of 2374 sixth graders in an urban public school district. To screen, we administered well-validated adolescent depression and disruptive behavior problem questionnaires. We evaluated associations between child mental health, parent immigration status, and race/ethnicity using binomial regression. RESULTS: Among Asian American/Pacific Islanders and Latinos, COI had significantly higher depression and disruptive behavior scores compared to NI. For Blacks/African Americans, children of NI parents had significantly higher disruptive behavior scores compared to COI. For European Americans, scores of COI and NI did not differ and were relatively low. CONCLUSION: Our study suggests that how the emotional health of COI is faring relative to children of NI depends on the child's race/ethnicity. PMID- 29333641 TI - Who Eats School Breakfast? Parent Perceptions of School Breakfast in a State With Very Low Participation. AB - BACKGROUND: Having breakfast is correlated with health and academic benefits; yet, many children do not consume breakfast, and participation in the federal School Breakfast Program remains low. The purpose of this study was to examine parent perceptions of school breakfast and identify relationships between those who consume breakfast at school and those who do not. METHODS: A random sample of 100 schools, representing 29 school districts, across the state of Utah was selected to participate in the survey. Administrators were asked to distribute an online survey link to the parents of their school. Parents answered questions about their oldest kindergarten through 12th grade child. Qualitative and quantitative analyses were performed. RESULTS: A total of 488 parents completed the survey. In a multilevel model, child grade level, participation in free and reduced-price lunch, and perceive benefits to school breakfast were significantly related to eating breakfast at school. Some major themes from the qualitative analysis included no need for school breakfast, perception of regional values, and logistical issues. CONCLUSIONS: Parent perception of school meals is related to participation. This study identifies several areas of perception that could be address through parent education to increase school breakfast participation. PMID- 29333642 TI - Early Adolescents' Emotional Well-Being in the Classroom: The Role of Personal and Contextual Assets. AB - BACKGROUND: The objective was to predict early adolescents' emotional well-being from personal and contextual assets in the classroom. Emotional well-being is a key indicator of health. Aligned with the positive youth development (PYD) framework, a supportive classroom environment and positive relationships with teachers and peers were contextual assets in the present study; positive self concept was a personal asset. METHODS: The sample was 406 grade 4 to 7 public elementary school students from diverse backgrounds (mean = 11.27 years; SD = 0.89; 50% female). Data were self-, teacher-, and peer-reported. Structural equation modeling (SEM) analyses were used to evaluate model fit and identify significant pathways. RESULTS: SEM indicated a good model fit. Overall, 68% of variability in early adolescents' emotional well-being was explained. Positive self-concept directly predicted emotional well-being. Supportive classroom environment predicted emotional well-being directly and indirectly through increases in positive social relationships and self-concept. Positive social relationships predicted well-being only indirectly through positive self-concept. CONCLUSIONS: Contextual and personal assets are central for early adolescents' emotional well-being. The interrelation among assets needs to be considered when understanding, and ultimately promoting students' emotional well-being. The present findings extend previous research and inform school-based intervention and prevention programming and teacher professional development. PMID- 29333643 TI - Race, Sex, and Discrimination in School Settings: A Multilevel Analysis of Associations With Delinquency. AB - BACKGROUND: Adolescence is a critical phase of development and experimentation with delinquent behaviors. There is a growing body of literature exploring individual and structural impacts of discrimination on health outcomes and delinquent behaviors. However, there is limited research assessing how school diversity and discrimination impact students' delinquent behaviors. In response, the purpose of this study was to assess if individual- and school-level indicators of discrimination and diversity were associated with student delinquent behaviors among African American and White students. METHODS: We analyzed Wave I (1994-1995) data from the National Longitudinal Study of Adolescent Health. Our analysis was limited to 8947 African American and White students (73% White, 48% male, and 88% parent >= high school education). We used multilevel zero-inflated negative binomial regression to test the association of individual- and school characteristics and discrimination with the number of self reported delinquent behaviors. RESULTS: Race, sex, perceived peer inclusion, and teacher discrimination were predictors of students' delinquent behaviors. The average school perceived peer inclusion and percentage of African Americans in teaching roles were associated with delinquent behaviors. CONCLUSIONS: Findings from this study highlight the potential for intervention at the interpersonal and school levels to reduce delinquency among African American and White students. PMID- 29333644 TI - School Lunch Consumption Among 3 Food Service Providers in New Orleans. AB - BACKGROUND: Louisiana has one of the highest rates of overweight and obese children in the United States. The Healthy School Food Collaborative (HSFC) was created to allow New Orleans's schools to select their own healthy school Food Service Provider (FSP) with requirements for higher nutritional standards than traditional options. The goal of this cross-sectional study was to examine whether HSFC membership was associated with lunch consumption rates in elementary school children. METHODS: An 8-week plate waste study examining 18,070 trays of food among fourth and fifth graders was conducted. Participants included 7 schools and the 3 FSPs (2 HSFC and 1 non-HSFC member) that serviced them. Mixed models analysis examined whether consumption rates of food items differed among FSPs. RESULTS: On average, students consumed 307 cal during lunch. Analyses showed significant differences in consumption rates of entree, vegetables, fruit, and milk between the 3 FSPs (p < .01). The highest consumption rate was among entrees at 65%. One HSFC provider had consumption levels consistent with the non HSFC FSP. CONCLUSIONS: Overall, students consumed less than 60% of the US Department of Agriculture recommended calories for school lunch. While overall caloric consumption was higher among the non-HSFC schools, interventions to increase lunch consumption across all schools are needed. PMID- 29333645 TI - How Healthy Is Homeschool? An Analysis of Body Composition and Cardiovascular Disease Risk. AB - BACKGROUND: Public school children regularly participate in school-based physical activity, physical education, and fitness testing. However, almost 2 million American children are homeschooled. The purpose of this research was to assess the body composition of elementary school-aged homeschool children and their corresponding cardiovascular disease (CVD) risk. METHODS: This research explored the body composition and CVD risk of 145 homeschool children aged 5-11 years using body mass index (BMI), percent body fat, and waist circumference. Chi square and Mann-Whitney U tests examined differences in CVD risk within the homeschool population. RESULTS: Overall, homeschool children had average BMI z scores (SD [range]) with a mean of -0.11 (0.97 [-3.47 to 2.53]). Unhealthy classifications were seen in 11.2% of the sample by BMI, 19.6% by percent body fat, and 49.7% by waist circumference. Statistical analysis revealed no difference in CVD risk between sexes (chi2 (1) = 0.062, p = .804) or ethnicities (chi2 (1) = 0.927, p = .336) but increased prevalence in children aged 5-9 years (U = 1427, z = -4.559, p < .001). CONCLUSIONS: Almost half of elementary school aged homeschool children showed increased risk for CVD and need regular assessment of central adiposity. PMID- 29333646 TI - Examining Predictors of Breakfast Skipping and Breakfast Program Use Among Secondary School Students in the COMPASS Study. AB - BACKGROUND: Many Canadian schools offer breakfast programs; however, students' engagement in these programs is low, while breakfast skipping is highly prevalent among youth. This study examined whether the availability of breakfast programs supports adolescents' regular breakfast eating, and identified characteristics of breakfast skippers who are not using these programs. METHODS: Data from 30,771 secondary school students from Ontario and Alberta, Canada, participating in Year 3 (2014-2015) of the COMPASS study were used for descriptive and logistic regression analyses. Participants were categorized by self-reported breakfast eating and school breakfast program use. RESULTS: Sixteen percent of participants reported using school breakfast programs. Breakfast skipping was highly prevalent among participants, regardless of their breakfast program use. Characteristics significantly associated with program use included traveling to school via public transit or a school bus, being a bullying victim, and having a high school connectedness score. A desire to lose weight and non-involvement in school sports were significantly associated with being a "breakfast skipper/nonprogram user." CONCLUSIONS: School breakfast programs do not consistently support regular breakfast eating, even among adolescents actively engaged in these programs. Future research should identify and evaluate practices to bolster participation in breakfast programs and promote regular breakfast eating among adolescents. PMID- 29333647 TI - Effect of Sleep Duration, Diet, and Physical Activity on Obesity and Overweight Elementary School Students in Shanghai. AB - BACKGROUND: This was a cross-sectional survey to investigate the relationship of age, parent education, sleep duration, physical activity, and dietary habits with overweight or obesity in school-age children in Shanghai. METHODS: The survey gathered information from 13,001 children in grades 1 through 5 (age 6 to 10 years) among 26 elementary schools in 7 districts. Activity level was evaluated using the International Children's Leisure Activities Study Survey Questionnaire (CLASS-C). The definitions of normal, overweight, and obese were adjusted for each age. RESULTS: Logistic regression analysis indicated that age, being male, having <=10 hours of sleep on non-school days, eating >=1 vegetable/day, or drinking >=1 sugar-sweetened drink/day increased the risk for a child being overweight or obese compared with having >10 hours of sleep or <=3 vegetables or <=3 sugar-sweetened drinks/month (p <= .008). Having >2 hours of outdoor activities on non-school days reduced the risk of being overweight or obese compared with <=2 hours of outdoor activities on non-school days (p < .001). CONCLUSIONS: We found that age, sex, sleep, and some dietary habits impacted weight, and suggests that specific cultural and economic factors may impact risk of a child being overweight or obese. PMID- 29333648 TI - Physical and Social Contexts of Physical Activity Behaviors of Fifth and Seventh Grade Youth. AB - BACKGROUND: The purpose of this study was to characterize the temporal, social, and physical contexts for physical activities commonly reported in a diverse cohort of 753 boys and girls from fifth to seventh grade. METHODS: Data were obtained from a multilevel longitudinal study, the Transitions and Activity Changes in Kids. The Physical Activity Choices instrument assessed previous 5-day participation in specific physical activities and their temporal, social, and physical contexts. Mixed model repeated measure analyses of variance and multinomial analyses examined sex differences and change over time. RESULTS: Fifth grade boys and girls reported participation in similar activities at similar frequencies, which declined significantly by seventh grade. One temporal pattern, playing with younger children, changed over time from "both inside/outside" to "outside" school. Boys and females reported more activities performed in class/team groups over time. Most activities took place primarily at home for all participants in both grades. CONCLUSIONS: Boys and girls reported declines in the variety and frequency of activities from fifth to seventh grade. There were sex-specific patterns in physical activities and groups; however, all participants reported home as the primary location and a shift to class/team groups over time. Schools are well-positioned to provide additional physical activity opportunities. PMID- 29333649 TI - Detection of gene-environment interactions in a family-based population using SCAD. PMID- 29333650 TI - Comments on "Longitudinal beta-binomial modeling using GEE for overdispersed binomial data". PMID- 29333651 TI - Corrigendum. PMID- 29333652 TI - Establishment and characterization of a brain-cell line from kelp grouper Epinephelus moara. AB - A new brain-cell line, EMB, was developed from kelp grouper Epinephelus moara, a cultured marine fish. The EMB cells were subcultured for more than 60 passages. The cells were cultured in Leibovitz's L-15 medium (L15) supplemented with antibiotics, foetal bovine serum (FBS), 2-mercaptoethanol (2-ME) and basic fibroblast growth factor (bFGF). The cells could grow at 18-30 degrees C, with the maximum growth between 24 and 30 degrees C. The optimum FBS concentration for the cells growth ranged between 15 and 20%. Chromosome analysis indicated that the modal chromosome number was 48 in the cells at passage 45. After being transfected with pEGFP-N3 plasmid, the cells could successfully express green fluorescence protein (GFP), implying that this cell line can be used for transgenic studies. A significant cytopathic effect (CPE) was observed in the cells after infection with Singapore grouper iridovirus (SGIV) or red spotted grouper nervous necrosis virus (RGNNV) and the viral replication was confirmed by quantitative real-time PCR (qrt-PCR) assay, which suggested EMB's application potential for studies of SGIV and RGNNV. PMID- 29333654 TI - Corrigendum. PMID- 29333653 TI - Vitiligo-like lesions and immune checkpoint inhibition therapy: is it truly an adverse event exclusive to patients with melanoma? PMID- 29333655 TI - Preparation of High-Percentage 1T-Phase Transition Metal Dichalcogenide Nanodots for Electrochemical Hydrogen Evolution. AB - Nanostructured transition metal dichalcogenides (TMDs) are proven to be efficient and robust earth-abundant electrocatalysts to potentially replace precious platinum-based catalysts for the hydrogen evolution reaction (HER). However, the catalytic efficiency of reported TMD catalysts is still limited by their low density active sites, low conductivity, and/or uncleaned surface. Herein, a general and facile method is reported for high-yield, large-scale production of water-dispersed, ultrasmall-sized, high-percentage 1T-phase, single-layer TMD nanodots with high-density active edge sites and clean surface, including MoS2 , WS2 , MoSe2 , Mo0.5 W0.5 S2 , and MoSSe, which exhibit much enhanced electrochemical HER performances as compared to their corresponding nanosheets. Impressively, the obtained MoSSe nanodots achieve a low overpotential of -140 mV at current density of 10 mA cm-2 , a Tafel slope of 40 mV dec-1 , and excellent long-term durability. The experimental and theoretical results suggest that the excellent catalytic activity of MoSSe nanodots is attributed to the high-density active edge sites, high-percentage metallic 1T phase, alloying effect and basal plane Se-vacancy. This work provides a universal and effective way toward the synthesis of TMD nanostructures with abundant active sites for electrocatalysis, which can also be used for other applications such as batteries, sensors, and bioimaging. PMID- 29333656 TI - First case of Stevens-Johnson syndrome after rabies vaccination. AB - We describe the first case of Stevens-Johnson syndrome (SJS) occurring 8 days after the first dose of a three-dose rabies vaccination series. She had no history of vaccine-related rash or other adverse drug reactions, nor had she received any other drug therapy. The temporal relationship between the development of SJS and the vaccination suggests that the rabies vaccination probably was the causal agent. This case serves as a warning of a distinct cutaneous reaction of rabies vaccination. PMID- 29333657 TI - Gelatin Methacryloyl Hydrogels in the Absence of a Crosslinker as 3D Glioblastoma Multiforme (GBM)-Mimetic Microenvironment. AB - 3D platforms are important for monitoring tumor progression and screening drug candidates to eradicate tumors such as glioblastoma multiforme (GBM), a malignant type of human brain tumor. Here, a new strategy is reported that exploits visible light-induced crosslinking of gelatin where the reaction is carried out in the absence of an additional crosslinker. Visible light-induced crosslinking promotes the design of cancer microenvironment-mimetic system without compromising the cell viability during the process and absence of crosslinker facilitates the synthesis of the unique construct. Suspension and spheroid-based models of GBM are used to investigate cellular behavior, expression profiles of malignancy, and apoptosis-related genes within this unique network. Furthermore, sensitivity to an anticancer drug, Digitoxigenin, treatment is investigated in detail. The data suggest that U373 cells, in sparse or spheroid form, have significantly decreased expressions of apoptosis-activating genes, Bad, Puma, and Caspase-3, and a high expression of prosurvival Bcl-2 gene within GelMA hydrogels. Matrix metalloproteinase genes are also upregulated within GelMA, suggesting positive contribution of gels on extracellular remodeling of cancer cells. This unique photocurable gelatin holds great potential for clinical translation of cancer research through the analysis of 3D malignant cancer cell behavior, and hence for more efficient treatment methods for GBM. PMID- 29333659 TI - Acute renal replacement therapy during hospitalization: Is training adequate? AB - Acute renal replacement therapy is one of the most common interventions provided by nephrologists, however, data on the quality of training provided to nephrology fellows is limited. Extensive curricula for acute renal replacement therapy and the management of poisonings and intoxications have been published, but personal experience suggests that there are significant opportunities to improve training. Particular areas to be considered include the use of novel technologies for assessment of volume status, greater emphasis on the dosing of medications during acute renal replacement therapy, greater training in assessing and tailoring treatment to the goals of care of the individual patient, incorporation of continuous quality improvement tools into the management of acute renal replacement therapy programs and development of robust simulation training to augment training. PMID- 29333658 TI - In Situ shRNA Synthesis on DNA-Polylactide Nanoparticles to Treat Multidrug Resistant Breast Cancer. AB - Nanomedicine has shown unprecedented potential for cancer theranostics. Nucleic acid (e.g., DNA and RNA) nanomedicines are of particular interest for combination therapy with chemotherapeutics. However, current nanotechnologies to construct such nucleic acid nanomedicines, which rely on chemical conjugation or physical complexation of nucleic acids with chemotherapeutics, have restrained their clinical translation due to limitations such as low drug loading efficiency and poor biostability. Herein, in situ rolling circle transcription (RCT) is applied to synthesize short hairpin RNA (shRNA) on amphiphilic DNA-polylactide (PLA) micelles. Core-shell PLA@poly-shRNA structures that codeliver a high payload of doxorubicin (Dox) and multidrug resistance protein 1 (MDR1) targeted shRNA for MDR breast cancer (BC) therapy are developed. DNA-PLA conjugates are first synthesized, which then self-assemble into amphiphilic DNA-PLA micelles; next, using the conjugated DNA as a promoter, poly-shRNA is synthesized on DNA-PLA micelles via RCT, generating PLA@poly-shRNA microflowers; and finally, microflowers are electrostatically condensed into nanoparticles using biocompatible and multifunctional poly(ethylene glycol)-grafted polypeptides (PPT g-PEG). These PLA@poly-shRNA@PPT-g-PEG nanoparticles are efficiently delivered into MDR breast cancer cells and accumulated in xenograft tumors, leading to MDR1 silencing, intracellular Dox accumulation, potentiated apoptosis, and enhanced tumor therapeutic efficacy. Overall, this nanomedicine platform is promising to codeliver anticancer nucleic acid therapeutics and chemotherapeutics. PMID- 29333660 TI - Interventions to increase attendance for diabetic retinopathy screening. AB - BACKGROUND: Despite evidence supporting the effectiveness of diabetic retinopathy screening (DRS) in reducing the risk of sight loss, attendance for screening is consistently below recommended levels. OBJECTIVES: The primary objective of the review was to assess the effectiveness of quality improvement (QI) interventions that seek to increase attendance for DRS in people with type 1 and type 2 diabetes.Secondary objectives were:To use validated taxonomies of QI intervention strategies and behaviour change techniques (BCTs) to code the description of interventions in the included studies and determine whether interventions that include particular QI strategies or component BCTs are more effective in increasing screening attendance;To explore heterogeneity in effect size within and between studies to identify potential explanatory factors for variability in effect size;To explore differential effects in subgroups to provide information on how equity of screening attendance could be improved;To critically appraise and summarise current evidence on the resource use, costs and cost effectiveness. SEARCH METHODS: We searched the Cochrane Library, MEDLINE, Embase, PsycINFO, Web of Science, ProQuest Family Health, OpenGrey, the ISRCTN, ClinicalTrials.gov, and the WHO ICTRP to identify randomised controlled trials (RCTs) that were designed to improve attendance for DRS or were evaluating general quality improvement (QI) strategies for diabetes care and reported the effect of the intervention on DRS attendance. We searched the resources on 13 February 2017. We did not use any date or language restrictions in the searches. SELECTION CRITERIA: We included RCTs that compared any QI intervention to usual care or a more intensive (stepped) intervention versus a less intensive intervention. DATA COLLECTION AND ANALYSIS: We coded the QI strategy using a modification of the taxonomy developed by Cochrane Effective Practice and Organisation of Care (EPOC) and BCTs using the BCT Taxonomy version 1 (BCTTv1). We used Place of residence, Race/ethnicity/culture/language, Occupation, Gender/sex, Religion, Education, Socioeconomic status, and Social capital (PROGRESS) elements to describe the characteristics of participants in the included studies that could have an impact on equity of access to health services.Two review authors independently extracted data. One review author entered the data into Review Manager 5 and a second review author checked them. Two review authors independently assessed risks of bias in the included studies and extracted data. We rated certainty of evidence using GRADE. MAIN RESULTS: We included 66 RCTs conducted predominantly (62%) in the USA. Overall we judged the trials to be at low or unclear risk of bias. QI strategies were multifaceted and targeted patients, healthcare professionals or healthcare systems. Fifty-six studies (329,164 participants) compared intervention versus usual care (median duration of follow-up 12 months). Overall, DRS attendance increased by 12% (risk difference (RD) 0.12, 95% confidence interval (CI) 0.10 to 0.14; low-certainty evidence) compared with usual care, with substantial heterogeneity in effect size. Both DRS-targeted (RD 0.17, 95% CI 0.11 to 0.22) and general QI interventions (RD 0.12, 95% CI 0.09 to 0.15) were effective, particularly where baseline DRS attendance was low. All BCT combinations were associated with significant improvements, particularly in those with poor attendance. We found higher effect estimates in subgroup analyses for the BCTs 'goal setting (outcome)' (RD 0.26, 95% CI 0.16 to 0.36) and 'feedback on outcomes of behaviour' (RD 0.22, 95% CI 0.15 to 0.29) in interventions targeting patients, and 'restructuring the social environment' (RD 0.19, 95% CI 0.12 to 0.26) and 'credible source' (RD 0.16, 95% CI 0.08 to 0.24) in interventions targeting healthcare professionals.Ten studies (23,715 participants) compared a more intensive (stepped) intervention versus a less intensive intervention. In these studies DRS attendance increased by 5% (RD 0.05, 95% CI 0.02 to 0.09; moderate-certainty evidence).Fourteen studies reporting any QI intervention compared to usual care included economic outcomes. However, only five of these were full economic evaluations. Overall, we found that there is insufficient evidence to draw robust conclusions about the relative cost effectiveness of the interventions compared to each other or against usual care.With the exception of gender and ethnicity, the characteristics of participants were poorly described in terms of PROGRESS elements. Seventeen studies (25.8%) were conducted in disadvantaged populations. No studies were carried out in low- or middle-income countries. AUTHORS' CONCLUSIONS: The results of this review provide evidence that QI interventions targeting patients, healthcare professionals or the healthcare system are associated with meaningful improvements in DRS attendance compared to usual care. There was no statistically significant difference between interventions specifically aimed at DRS and those which were part of a general QI strategy for improving diabetes care. This is a significant finding, due to the additional benefits of general QI interventions in terms of improving glycaemic control, vascular risk management and screening for other microvascular complications. It is likely that further (but smaller) improvements in DRS attendance can also be achieved by increasing the intensity of a particular QI component or adding further components. PMID- 29333661 TI - Nanocage-Therapeutics Prevailing Phagocytosis and Immunogenic Cell Death Awakens Immunity against Cancer. AB - A growing appreciation of the relationship between the immune system and the tumorigenesis has led to the development of strategies aimed at "re-editing" the immune system to kill tumors. Here, a novel tactic is reported for overcoming the activation-energy threshold of the immunosuppressive tumor microenvironment and mediating the delivery and presentation of tumor neoantigens to the host's immune system. This nature-derived nanocage not only efficiently presents ligands that enhance cancer cell phagocytosis, but also delivers drugs that induce immunogenic cancer cell death. The designed nanocage-therapeutics induce the release of neoantigens and danger signals in dying tumor cells, and leads to enhancement of tumor cell phagocytosis and cross-priming of tumor specific T cells by neoantigen peptide-loaded antigen-presenting cells. Potent inhibition of tumor growth and complete eradication of tumors is observed through systemic tumor-specific T cell responses in tumor draining lymph nodes and the spleen and further, infiltration of CD8+ T cells into the tumor site. Remarkably, after removal of the primary tumor, all mice treated with this nanocage-therapeutics are protected against subsequent challenge with the same tumor cells, suggesting development of lasting, tumor-specific responses. This designed nanocage-therapeutics "awakens" the host's immune system and provokes a durable systemic immune response against cancer. PMID- 29333662 TI - Serum levels of psoriasin (S100A7) and koebnerisin (S100A15) as potential markers of atherosclerosis in patients with psoriasis. AB - BACKGROUND: Psoriasin (S100A7) and koebnerisin (S100A15) are proinflammatory proteins upregulated in psoriasis, but their relation to atherosclerosis remains unclear. AIM: To evaluate the role of serum psoriasin and koebnerisin as possible markers for subclinical atherosclerosis in patients with psoriasis. METHODS: Serum levels of psoriasin and koebnerisin were measured by ELISA in 45 patients with psoriasis and in 45 healthy controls (HCs). Intima-media thickness (IMT) of the right and left common carotid arteries was measured to detect the presence of subclinical atherosclerosis. Clinical severity of psoriasis was estimated using the Psoriasis Area and Severity Index (PASI). RESULTS: Compared with HCs, patients with psoriasis had significantly higher levels of psoriasin (26.61 +/- 22.45 ng/mL vs. 6.31 +/- 1.68 ng/mL, P < 0.001) and koebnerisin (21.2 +/- 13.12 ng/mL vs. 12.2 +/- 4.67 ng/mL, P = 0.001), and significantly higher IMT values (1.07 +/- 0.4 mm vs. 0.61 +/- 0.1 mm, P < 0.001). A positive correlation was observed between IMT and PASI (r = 0.78, P < 0.001), serum psoriasin (r = 0.48, P > 0.01) and serum koebnerisin (r = 0.48, P < 0.01). Patients with psoriasis with subclinical atherosclerosis had higher serum levels of koebnerisin compared with patients without subclinical atherosclerosis (P = 0.04), which was not observed for psoriasin (P = 0.94). CONCLUSION: Serum psoriasin and koebnerisin correlate with IMT, underlining their value as a potential link between psoriasis and atherosclerosis. In particular, koebnerisin seems to be a useful marker of subclinical atherosclerosis in patients with psoriasis. PMID- 29333663 TI - Computed tomographic retrograde positive contrast cystography and computed tomographic excretory urography characterization of a urinary bladder diverticulum in a dog. AB - A one-year-old intact male German shepherd dog was referred with a 3-month history of dysuria and pollakiuria. Physical examination revealed a large firm mass in the caudal abdomen. Findings from survey radiography, negative contrast cystography, computed tomographic (CT) retrograde positive contrast cystography, and CT excretory urography were consistent with a large urinary bladder diverticulum. An exploratory laparotomy revealed a normal wall appearance in the ventral compartment (true bladder) and marked thinning of the wall in the dorsal compartment (diverticulum). Both ureters inserted into the ventral compartment. The dorsal compartment was excised and histopathology confirmed the diagnosis of urinary bladder diverticulum. PMID- 29333664 TI - Increased non-fatal overdose risk associated with involuntary drug treatment in a longitudinal study with people who inject drugs. AB - AIM: To assess the effect of involuntary drug treatment (IDT) on non-fatal overdose among people who inject drugs (PWID). DESIGN: Longitudinal study. SETTING: Tijuana, Mexico. PARTICIPANTS: Baseline sample of 671 PWID included 258 (38.4%) women and 413 (61.6%) men. MEASUREMENTS: Primary independent variables were reported recent (i.e. past 6 months) non-fatal overdose event (dependent variable) and IDT. Substance use the day of the non-fatal overdose was also examined. FINDINGS: From 2011 to 2017, 213 participants (31.7%) reported a recent non-fatal overdose and 103 (15.4%) reported recent IDT. Heroin, in combination with methamphetamine and tranquilizers, were the drugs most reported at the day of the event. IDT significantly increased the odds of reporting a non-fatal overdose event [adjusted odds ratio (aOR) = 1.76; 95% confidence interval (CI) = 1.04-2.96]. Odds of non-fatal overdose also increased independently for each additional injection per day (aOR = 1.05; 95% CI = 1.02-1.08), recent tranquilizer use (aOR = 1.92; 95% CI = 1.41-2.61) and using hit doctors (aOR = 1.68; 95% CI = 1.29-2.18) and decreased with age (aOR = 0.97 per year, 95% CI = 0.95-0.99). CONCLUSIONS: Recent involuntary drug treatment in Mexico is a risk factor for non-fatal drug overdose. PMID- 29333667 TI - Improved Electron Transport with Reduced Contact Resistance in N-Doped Polymer Field-Effect Transistors with a Dimeric Dopant. AB - Attaining control on charge injection properties is significant for meaningful applications of organic field-effect transistors (OFETs). Here, molecular electron-doping is applied with an air-stable dimer dopant for n-type OFETs based on (naphthalene diimide-diketopyrrolopyrrole) polymer hosts. Through investigating the doping effect on contact and transport properties, it is found that the electron transport increases in n-doped OFETs at low doping regime with remaining large on/off ratios. These favorable meliorations are reconciled by the mitigated impacts of contact resistance and interfacial traps, as well as the surface morphology exhibiting features of increased ordering. The occurrence of doping in the presence of dimer dopants is evidenced by the observed shift of Fermi level toward vacuum level coupled with compositional analysis. Without applying vacuum-deposition-based contact doping, charge injection efficiencies are gained without losing OFET characteristics using the solution-based methodology. PMID- 29333665 TI - Clinical and metabolic effects associated with weight changes and obeticholic acid in non-alcoholic steatohepatitis. AB - BACKGROUND: In a 72-week, randomised controlled trial of obeticholic acid (OCA) in non-alcoholic steatohepatitis (NASH), OCA was superior to placebo in improving serum ALT levels and liver histology. OCA therapy also reduced weight. AIMS: Because weight loss by itself can improve histology, to perform a post hoc analysis of the effects of weight loss and OCA treatment in improving clinical and metabolic features of NASH. METHODS: The analysis was limited to the 200 patients with baseline and end-of-treatment liver biopsies. Weight loss was defined as a relative decline from baseline of 2% or more at treatment end. RESULTS: Weight loss occurred in 44% (45/102) of OCA and 32% (31/98) of placebo treated patients (P = 0.08). The NAFLD Activity score (NAS) improved more in those with than without weight loss in both the OCA- (-2.4 vs -1.2, P<0.001) and placebo-treated patients (-1.2 vs -0.5, P = 0.03). ALT levels also improved in those with vs without weight loss in OCA- (-43 vs -34 U/L, P = 0.12) and placebo treated patients (-29 vs -10 U/L, P = 0.02). However, among those who lost weight, OCA was associated with opposite effects from placebo on changes in alkaline phosphatase (+21 vs -12 U/L, P<0.001), total (+13 vs -14 mg/dL, P = 0.02) and LDL cholesterol (+18 vs -12 mg/dL, P = 0.01), and HbA1c (+0.1 vs -0.4%, P = 0.01). CONCLUSIONS: OCA leads to weight loss in up to 44% of patients with NASH, and OCA therapy and weight loss have additive benefits on serum aminotransferases and histology. However, favourable effects of weight loss on alkaline phosphatase, lipids and blood glucose seen in placebo-treated patients were absent or reversed on OCA treatment. These findings stress the importance of assessing concomitant metabolic effects of new therapies of NASH. Clinical trial number: NCT01265498. PMID- 29333668 TI - A photonumeric scale for the assessment of atrophic facial photodamage. AB - BACKGROUND: Photonumeric scales have consistently shown superiority over descriptive equivalents. They have the advantage of providing a consistent visual frame of reference by minimizing variability in perception and subjectivity. A photonumeric scale to assess hypertrophic facial photodamage already exists. However, there is currently no objective measure for atrophic facial photodamage. To address this, we have devised a nine-point photonumeric standardized scale. OBJECTIVES: To design, test and validate a photonumeric scale for the assessment of atrophic facial photodamage against a descriptive scale for the same indication. METHODS: A pool of 393 facial photographs (en face and 45 degrees oblique) from 131 individuals with atrophic facial photodamage was created. Five photographic standards were selected and assigned grades zero through to eight, where zero is no photodamage and eight is severe atrophic photodamage, thus making a nine-point scale. Twenty photographs spanning the entire range of values were selected to test the scale. Testing was performed alongside a descriptive equivalent. A panel of 10 dermatologists, 10 nondermatology clinicians and 14 dermatology scientists marked the two scales; marking was repeated 1 week later. RESULTS: There was a significantly greater agreement between the graders using the photonumeric scale than the descriptive scale (kappa values 0.71 and 0.37 with standardized errors of 0.57 and 0.17, respectively) with no significant difference in repeatability between the two methods (P < 0.05). CONCLUSIONS: The study describes a new photonumeric scale for atrophic photodamage. This would be a useful adjunct in both the clinical and research settings. PMID- 29333666 TI - Stable High-Index Faceted Pt Skin on Zigzag-Like PtFe Nanowires Enhances Oxygen Reduction Catalysis. AB - Selectively exposing active surfaces and judiciously tuning the near-surface composition of electrode materials represent two prominent means of promoting electrocatalytic performance. Here, a new class of Pt3 Fe zigzag-like nanowires (Pt-skin Pt3 Fe z-NWs) with stable high-index facets (HIFs) and nanosegregated Pt skin structure is reported, which are capable of substantially boosting electrocatalysis in fuel cells. These unique structural features endow the Pt skin Pt3 Fe z-NWs with a mass activity of 2.11 A mg-1 and a specifc activity of 4.34 mA cm-2 for the oxygen reduction reaction (ORR) at 0.9 V versus reversible hydrogen electrode, which are the highest in all reported PtFe-based ORR catalysts. Density function theory calculations reveal a combination of exposed HIFs and formation of Pt-skin structure, leading to an optimal oxygen adsorption energy due to the ligand and strain effects, which is responsible for the much enhanced ORR activities. In contrast to previously reported HIFs-based catalysts, the Pt-skin Pt3 Fe z-NWs maintain ultrahigh durability with little activity decay and negligible structure transformation after 50 000 potential cycles. Overcoming a key technical barrier in electrocatalysis, this work successfully extends the nanosegregated Pt-skin structure to nanocatalysts with HIFs, heralding the exciting prospects of high-effcient Pt-based catalysts in fuel cells. PMID- 29333669 TI - Blood pressure and goal titration of neurohormonal antagonists: the tortoise wins again? PMID- 29333670 TI - Pustular psoriasis and related pustular skin diseases. AB - Patients with pustular psoriasis or related pustular diseases may have genetic abnormalities impairing the function of key players of the innate skin immune system. Recently, identification of these abnormalities has changed the paradigm of several of these diseases. These include generalized pustular psoriasis, palmoplantar pustular psoriasis and acrodermatitis continua of Hallopeau, and also drug-induced acute exanthematous generalized pustular eruption. Identified mutations in IL36RN, CARD14 and AP1S3 in different groups of patients lead to enhanced inflammatory cascade in several cellular subtypes including keratinocytes, and to the recruitment and activation of neutrophils and macrophages. These insights have unveiled pathophysiological features that shift the existing paradigms and emphasize the autoinflammatory nature of skin pustular disorders. They also highlight the crucial role of the innate immune system across entities belonging to the psoriasis disease spectrum, allowing identification of new appealing therapeutic targets. PMID- 29333671 TI - Selective enrichment of N-linked glycopeptides and glycans by using a dextran modified hydrophilic material. AB - Glycosylation analysis of proteins from biological sources utilizing mass spectrometry based approaches is challenging due to the relatively low abundance of glycopeptides, the structural diversity of glycans, and the coexisting matrices. In this study, a customized dextran-bonded silica-based stationary phase was introduced for selective enrichment of glycopeptides and glycans from complex biological samples. This material has exhibited superior selectivity and broader glycosylation site coverage over commercial Sepharose in glycoproteomic evaluation. Additionally, the glycomic analysis of fetuin, alpha1 -acid glycoprotein, and human serum N-glycome also indicated the relatively higher sensitivity, selectivity, and glycoform coverage of dextran-bonded silica than that of Sepharose and porous graphitized carbon. Therefore, the dextran-bonded silica is expected to make contributions in the fields of glycoproteomics and glycomics. PMID- 29333672 TI - Controlled pattern imputation for sensitivity analysis of longitudinal binary and ordinal outcomes with nonignorable dropout. AB - The controlled imputation method refers to a class of pattern mixture models that have been commonly used as sensitivity analyses of longitudinal clinical trials with nonignorable dropout in recent years. These pattern mixture models assume that participants in the experimental arm after dropout have similar response profiles to the control participants or have worse outcomes than otherwise similar participants who remain on the experimental treatment. In spite of its popularity, the controlled imputation has not been formally developed for longitudinal binary and ordinal outcomes partially due to the lack of a natural multivariate distribution for such endpoints. In this paper, we propose 2 approaches for implementing the controlled imputation for binary and ordinal data based respectively on the sequential logistic regression and the multivariate probit model. Efficient Markov chain Monte Carlo algorithms are developed for missing data imputation by using the monotone data augmentation technique for the sequential logistic regression and a parameter-expanded monotone data augmentation scheme for the multivariate probit model. We assess the performance of the proposed procedures by simulation and the analysis of a schizophrenia clinical trial and compare them with the fully conditional specification, last observation carried forward, and baseline observation carried forward imputation methods. PMID- 29333673 TI - Predicting heart failure: one size does not fit all. PMID- 29333675 TI - Sharing innovations to enhance renal fellow education in dialysis. AB - Dialysis care is an integral part of the practice of nephrology. Despite this, education of fellows in providing dialysis often remains rudimentary, relying on a combination of didactics and learning through experience. This runs the risk of training nephrologists who can provide dialysis care without truly being experts on the subject. In this article, a collection of novel or innovative teaching methods is presented that are meant to provide training programs with additional tools with which to improve the training of their fellows in dialysis. PMID- 29333674 TI - MicroRNA Detection by DNA-Mediated Liposome Fusion. AB - Membrane fusion is a process of fundamental importance in biological systems that involves highly selective recognition mechanisms for the trafficking of molecular and ionic cargos. Mimicking natural membrane fusion mechanisms for the purpose of biosensor development holds great potential for amplified detection because relatively few highly discriminating targets lead to fusion and an accompanied engagement of a large payload of signal-generating molecules. In this work, sequence-specific DNA-mediated liposome fusion is used for the highly selective detection of microRNA. The detection of miR-29a, a known flu biomarker, is demonstrated down to 18 nm within 30 min with high specificity by using a standard laboratory microplate reader. Furthermore, one order of magnitude improvement in the limit of detection is demonstrated by using a novel imaging technique combined with an intensity fluctuation analysis, which is coined two color fluorescence correlation microscopy. PMID- 29333676 TI - Ether-a-go-go K+ channels: effective modulators of neuronal excitability. AB - Mammalian ether-a-go-go (EAG) channels are voltage-gated K+ channels. They are encoded by the KCNH gene family and divided into three subfamilies, eag (Kv10), erg (eag-related gene; Kv11) and elk (eag-like; Kv12). All EAG channel subtypes are expressed in the brain where they effectively modulate neuronal excitability. This Topical Review describes the biophysical properties of each of the EAG channel subtypes, their function in neurons and the neurological diseases induced by EAG channel mutations. In contrast to the function of erg currents in the heart, where they contribute to repolarization of the cardiac action potential, erg currents in neurons are involved in the maintenance of the resting potential, setting of action potential threshold and frequency accommodation. They can even support high frequency firing by preventing a depolarization-induced Na+ channel block. EAG channels are modulated differentially, e.g. eag channels by intracellular Ca2+ , erg channels by extracellular K+ and GPCRs, and elk channels by changes in pH. So far, only currents mediated by erg channels have been recorded in neurons with the help of selective blockers. Neuronal eag and elk currents have not been isolated due to the lack of suitable channel blockers. However, findings in KO mice indicate a physiological role of eag1 currents in synaptic transmission and an involvement of elk2 currents in cognitive performance. Human eag1 and eag2 gain-of-function mutations underlie syndromes associated with epileptic seizures. PMID- 29333679 TI - Publication ethics-Where are we today? Part 3: The good, the bad, and the ugly face of publication. PMID- 29333678 TI - Supplementary feeding as a source of multiresistant Salmonella in endangered Egyptian vultures. AB - Wild birds have repeatedly been highlighted as vectors in the dissemination of livestock and human pathogens. Here, the occurrence, serotypes and antimicrobial resistance of Salmonella were assessed in adult Egyptian vultures (Neophron percnopterus), to test the hypothesis that infection is associated with the consumption of swine carcasses provided at supplementary feeding stations (SFSs). Faeces of year-round resident griffon vultures (Gyps fulvus) were also tested to assess whether infection was acquired in the breeding grounds of both species or in the African wintering quarters of Egyptian vultures. Depending on the shedding rate criteria considered, the occurrence of infection in Egyptian vultures varied between the three consecutive sampling days in a range with a minimum of 23%-41% and a maximum of 64%-92% of individuals (n = 11-14 individuals, 27-39 faeces). The occurrence in the single sampling of griffon vultures was 61% of faeces (n = 18). Vultures mostly fed on pig carcasses, which together with their predominant infection with multiresistant serotypes (mostly the monophasic 4,12:i:- variant resistant to aminopenicillins, aminoglycosides and tetracyclines) typically found in pigs from Spain, strongly supports a carcass-to-vulture transmission and cross infection routes at SFSs. Efforts are encouraged to avoid discarding carcasses of pigs with Salmonella at SFSs established for the conservation of threatened scavengers. This could contribute to reducing the long-distance transmission of resistant pathogens with an impact on livestock and human health while avoiding infection risk and its effects on wildlife. PMID- 29333677 TI - Diminished alternative reinforcement as a mechanism linking conduct problems and substance use in adolescence: a longitudinal examination. AB - AIMS: To determine whether diminished alternative reinforcement (i.e. engagement and enjoyment from substance-free activities) mediated the longitudinal association of conduct problems with substance use in early-mid-adolescence. DESIGN: Structural equation modeling tested whether the association between wave 1 (baseline) conduct problems and wave 3 (24-month follow-up) substance use outcomes was mediated by diminished alternative reinforcement at wave 2 (12-month follow-up). Additional analyses tested whether sex and socio-economic status moderated this association. SETTING: Ten high schools in Los Angeles, CA, USA, 2013-15. PARTICIPANTS: Students (n = 3396, 53.5% female, mean [standard deviation (SD)] age at wave 1 baseline = 14.1 (0.42) years). MEASUREMENTS: Self-reported conduct problems (11-item questionnaire), alternative reinforcement (44-item questionnaire) and use of alcohol, marijuana and combustible cigarettes during the past 6 months (yes/no) and the past 30 days (nine-level ordinal response based on days used in past 30 days). RESULTS: Significant associations of wave 1 conduct problems with wave 3 marijuana use during the past 6 months (beta = 0.25) and past 30 days (beta = 0.26) were mediated by wave 2 diminished alternative reinforcement (betaindirect effect : 6 months = 0.013, 30 days = 0.017, Ps < 0.001). Associations of conduct problems with alcohol or combustible cigarette use were not mediated by alternative reinforcement. All associations did not differ by sex and socio-economic status. CONCLUSIONS: Diminished alternative reinforcement may be a modifiable mechanism linking early adolescent conduct problems and subsequent marijuana use that could be targeted in prevention programs to offset the adverse health and social sequelae associated with comorbid conduct problems and marijuana use in early-mid adolescence. PMID- 29333680 TI - Cellulose-Based Biomimetics and Their Applications. AB - Nature has been producing cellulose since long before man walked the surface of the earth. Millions of years of natural design and testing have resulted in cellulose-based structures that are an inspiration for the production of synthetic materials based on cellulose with properties that can mimic natural designs, functions, and properties. Here, five sections describe cellulose-based materials with characteristics that are inspired by gratings that exist on the petals of the plants, structurally colored materials, helical filaments produced by plants, water-responsive materials in plants, and environmental stimuli responsive tissues found in insects and plants. The synthetic cellulose-based materials described herein are in the form of fibers and films. Fascinating multifunctional materials are prepared from cellulose-based liquid crystals and from composite cellulosic materials that combine functionality with structural performance. Future and recent applications are outlined. PMID- 29333681 TI - Myotropic activity and immunolocalization of selected neuropeptides of the burying beetle Nicrophorus vespilloides (Coleoptera: Silphidae). AB - Burying beetles (Nicrophorus sp.) are necrophagous insects with developed parental care. Genome of Nicrophorus vespilloides has been recently sequenced, which makes them interesting model organism in behavioral ecology. However, we know very little about their physiology, including the functioning of their neuroendocrine system. In this study, one of the physiological activities of proctolin, myosuppressin (Nicve-MS), myoinhibitory peptide (Trica-MIP-5) and the short neuropeptide F (Nicve-sNPF) in N. vespilloides have been investigated. The tested neuropeptides were myoactive on N. vespilloides hindgut. After application of the proctolin increased hindgut contraction frequency was observed (EC50 value was 5.47 * 10-8 mol/L). The other tested neuropeptides led to inhibition of N. vespilloides hindgut contractions (Nicve-MS: IC50 = 5.20 * 10-5 mol/L; Trica-MIP 5: IC50 = 5.95 * 10-6 mol/L; Nicve-sNPF: IC50 = 4.08 * 10-5 mol/L). Moreover, the tested neuropeptides were immunolocalized in the nervous system of N. vespilloides. Neurons containing sNPF and MIP in brain and ventral nerve cord (VNC) were identified. Proctolin-immunolabeled neurons only in VNC were observed. Moreover, MIP-immunolabeled varicosities and fibers in retrocerebral complex were observed. In addition, our results have been supplemented with alignments of amino acid sequences of these neuropeptides in beetle species. This alignment analysis clearly showed amino acid sequence similarities between neuropeptides. Moreover, this allowed to deduce amino acid sequence of N. vespilloides proctolin (RYLPTa), Nicve-MS (QDVDHVFLRFa) and six isoforms of Nicve-MIP (Nicve-MIP-1 DWNRNLHSWa; Nicve-MIP-2-AWQNLQGGWa; Nicve-MIP-3-AWQNLQGGWa; Nicve-MIP-4 AWKNLNNAGWa; Nicve-MIP-5-SEWGNFRGSWa; Nicve-MIP-6- DPAWTNLKGIWa; and Nicve-sNPF SGRSPSLRLRFa). PMID- 29333682 TI - Selective extraction of bisphenol A from water by one-monomer molecularly imprinted magnetic nanoparticles. AB - One-monomer molecularly imprinted magnetic nanoparticles were prepared as adsorbents for selective extraction of bisphenol A from water in this study. A single bi-functional monomer was adopted for preparation of the molecularly imprinted polymer, avoiding the tedious trial-and-error optimizations as traditional strategy. Moreover, bisphenol F was used as the dummy template for bisphenol A to avoid the interference from residual template molecules. These nanoparticles showed not only large adsorption capacity and good selectivity to the bisphenol A but also outstanding magnetic response performance. Furthermore, they were successfully used as magnetic solid-phase extraction adsorbents of bisphenol A from various water samples, including tap water, river water, and seawater. The developed method was found to be much more efficient, convenient, and economical for selective extraction of bisphenol A compared with the traditional solid-phase extraction. Separation of these nanoparticles can be easily achieved with an external magnetic field, and the optimized adsorption time was only 15 min. The recoveries of bisphenol A in different water samples ranged from 85.38 to 93.75%, with relative standard deviation lower than 7.47%. These results showed that one-monomer molecularly imprinted magnetic nanoparticles had the potential to be popular adsorbents for selective extraction of pollutants from water. PMID- 29333683 TI - Mobility Engineering in Vertical Field Effect Transistors Based on Van der Waals Heterostructures. AB - Vertical integration of 2D layered materials to form van der Waals heterostructures (vdWHs) offers new functional electronic and optoelectronic devices. However, the mobility in vertical carrier transport in vdWHs of vertical field-effect transistor (VFET) is not yet investigated in spite of the importance of mobility for the successful application of VFETs in integrated circuits. Here, the mobility in VFET of vdWHs under different drain biases, gate biases, and metal work functions is first investigated and engineered. The traps in WSe2 are the main source of scattering, which influences the vertical mobility and three distinct transport mechanisms: Ohmic transport, trap-limited transport, and space charge-limited transport. The vertical mobility in VFET can be improved by suppressing the trap states by raising the Fermi level of WSe2 . This is achieved by increasing the injected carrier density by applying a high drain voltage, or decreasing the Schottky barrier at the graphene/WSe2 and metal/WSe2 junctions by applying a gate bias and reducing the metal work function, respectively. Consequently, the mobility in Mn vdWH at +50 V gate voltage is about 76 times higher than the initial mobility of Au vdWH. This work enables further improvements in the VFET for successful application in integrated circuits. PMID- 29333684 TI - Biocatalytic Synthesis of Nitriles through Dehydration of Aldoximes: The Substrate Scope of Aldoxime Dehydratases. AB - Nitriles, which are mostly needed and produced by the chemical industry, play a major role in various industry segments, ranging from high-volume, low-price sectors, such as polymers, to low-volume, high-price sectors, such as chiral pharma drugs. A common industrial technology for nitrile production is ammoxidation as a gas-phase reaction at high temperature. Further popular approaches are substitution or addition reactions with hydrogen cyanide or derivatives thereof. A major drawback, however, is the very high toxicity of cyanide. Recently, as a synthetic alternative, a novel enzymatic approach towards nitriles has been developed with aldoxime dehydratases, which are capable of converting an aldoxime in one step through dehydration into nitriles. Because the aldoxime substrates are easily accessible, this route is of high interest for synthetic purposes. However, whenever a novel method is developed for organic synthesis, it raises the question of substrate scope as one of the key criteria for application as a "synthetic platform technology". Thus, the scope of this review is to give an overview of the current state of the substrate scope of this enzymatic method for synthesizing nitriles with aldoxime dehydratases. As a recently emerging enzyme class, a range of substrates has already been studied so far, comprising nonchiral and chiral aldoximes. This enzyme class of aldoxime dehydratases shows a broad substrate tolerance and accepts aliphatic and aromatic aldoximes, as well as arylaliphatic aldoximes. Furthermore, aldoximes with a stereogenic center are also recognized and high enantioselectivities are found for 2-arylpropylaldoximes, in particular. It is further noteworthy that the enantiopreference depends on the E and Z isomers. Thus, opposite enantiomers are accessible from the same racemic aldehyde and the same enzyme. PMID- 29333685 TI - Co(OH)2 Nanoparticle-Encapsulating Conductive Nanowires Array: Room-Temperature Electrochemical Preparation for High-Performance Water Oxidation Electrocatalysis. AB - It is highly desired but still remains challenging to design and develop a Co based nanoparticle-encapsulated conductive nanoarray at room temperature for high performance water oxidation electrocatalysis. Here, it is reported that room temperature anodization of a Co(TCNQ)2 (TCNQ = tetracyanoquinodimethane) nanowire array on copper foam at alkaline pH leads to in situ electrochemcial oxidation of TCNQ- into water-insoluable TCNQ nanoarray embedding Co(OH)2 nanoparticles. Such Co(OH)2 -TCNQ/CF shows superior catalytic activity for water oxidation and demands only a low overpotential of 276 mV to drive a geometrical current density of 25 mA cm-2 in 1.0 m KOH. Notably, it also demonstrates strong long-term electrochemical durability with its activity being retrained for at least 25 h, a high turnover frequency of 0.97 s-1 at an overpotential of 450 mV and 100% Faradic efficiency. This study provides an exciting new method for the rational design and development of a conductive TCNQ-based nanoarray as an interesting 3D material for advanced electrochemical applications. PMID- 29333686 TI - Predicting hypertension among Korean cancer survivors: A nationwide population based study. AB - Hypertension is the most common comorbidity among cancer survivors, although there is no model for predicting hypertension in this population. Therefore, we developed a model for predicting hypertension using data from 6,480 Korean cancer survivors who were >=20 years old. The odds ratios (ORs) for hypertension were calculated using stepwise logistic regression analyses, and a nomogram was generated to predict hypertension. Hypertension was independently associated with an age of >=65 years (OR: 3.058), male gender (OR: 1.195), obesity (OR: 1.998), prehypertension (OR: 2.06), dyslipidaemia (OR: 2.011) and diabetes mellitus (OR: 2.297). Each variable in the nomogram was assigned a specific number of points, and the total score (range: 0-400) was used to obtain a value for predicting hypertension. The estimated prevalence of hypertension increased when the total nomogram score exceeded the sixth decile (total points: 128; p for trend <.001). Therefore, among Korean cancer survivors, hypertension was significantly associated with an age of >65 years, male gender, obesity, and having various comorbidities (e.g., prehypertension, dyslipidaemia and diabetes mellitus). Furthermore, our nomogram could predict the incidence of hypertension, and the sixth decile of the total nomogram score predicted an increased risk of hypertension. PMID- 29333687 TI - H9N2 influenza virus isolated from minks has enhanced virulence in mice. AB - H9N2 is one of the major subtypes of influenza virus circulating in poultry in China, which has a wide host range from bird to mammals. Two H9N2 viruses were isolated from one mink farm in 2014. Phylogenetic analysis showed that internal genes of the H9N2 viruses have close relationship with those of H7N9 viruses. Interestingly, two H9N2 were separated in phylogenetic trees, indicating that they are introduced to this mink farm in two independent events. And further mice studies showed that one H9N2 caused obvious weight loss and 20% mortality in infected mice, while another virus did not cause any clinical sign in mice infected at the same dose. Genetic analysis indicated that the virulent H9N2 contain a natural mutation at 701N in PB2 protein, which was reported to contribute to mammalian adaptation. However, such substitution is absent in the H9N2 avirulent to mice. Circulation of H9N2 in mink may drive the virus to adapt mammals; continual surveillance of influenza virus in mink was warranted. PMID- 29333689 TI - 2D-Black-Phosphorus-Reinforced 3D-Printed Scaffolds:A Stepwise Countermeasure for Osteosarcoma. AB - With the ever-deeper understanding of nano-bio interactions and the development of fabrication methodologies of nanomaterials, various therapeutic platforms based on nanomaterials have been developed for next-generation oncological applications, such as osteosarcoma therapy. In this work, a black phosphorus (BP) reinforced 3D-printed scaffold is designed and prepared to provide a feasible countermeasure for the efficient localized treatment of osteosarcoma. The in situ phosphorus-driven, calcium-extracted biomineralization of the intra-scaffold BP nanosheets enables both photothermal ablation of osteosarcoma and the subsequent material-guided bone regeneration in physiological microenvironment, and in the meantime endows the scaffolds with unique physicochemical properties favoring the whole stepwise therapeutic process. Additionally, a corrugated structure analogous to Haversian canals is found on newborn cranial bone tissue of Sprague Dawley rats, which may provide much inspiration for the future research of bone tissue engineering. PMID- 29333688 TI - Infant brain responses to felt and observed touch of hands and feet: an MEG study. AB - There is growing interest concerning the ways in which the human body, both one's own and that of others, is represented in the developing human brain. In two experiments with 7-month-old infants, we employed advances in infant magnetoencephalography (MEG) brain imaging to address novel questions concerning body representations in early development. Experiment 1 evaluated the spatiotemporal organization of infants' brain responses to being touched. A punctate touch to infants' hands and feet produced significant activation in the hand and foot areas of contralateral primary somatosensory cortex as well as in other parietal and frontal areas. Experiment 2 explored infant brain responses to visually perceiving another person's hand or foot being touched. Results showed significant activation in early visual regions and also in regions thought to be involved in multisensory body and self-other processing. Furthermore, observed touch of the hand and foot activated the infant's own primary somatosensory cortex, although less consistently than felt touch. These findings shed light on aspects of early social cognition, including action imitation, which may build, at least in part, on infant neural representations that map equivalences between the bodies of self and other. PMID- 29333690 TI - High-Capacity Cathode Material with High Voltage for Li-Ion Batteries. AB - Electrochemical energy storage devices with a high energy density are an important technology in modern society, especially for electric vehicles. The most effective approach to improve the energy density of batteries is to search for high-capacity electrode materials. According to the concept of energy quality, a high-voltage battery delivers a highly useful energy, thus providing a new insight to improve energy density. Based on this concept, a novel and successful strategy to increase the energy density and energy quality by increasing the discharge voltage of cathode materials and preserving high capacity is proposed. The proposal is realized in high-capacity Li-rich cathode materials. The average discharge voltage is increased from 3.5 to 3.8 V by increasing the nickel content and applying a simple after-treatment, and the specific energy is improved from 912 to 1033 Wh kg-1 . The current work provides an insightful universal principle for developing, designing, and screening electrode materials for high energy density and energy quality. PMID- 29333692 TI - Measuring spatial and temporal trends of nicotine and alcohol consumption in Australia using wastewater-based epidemiology. AB - BACKGROUND AND AIMS: Tobacco and alcohol consumption remain priority public health issues world-wide. As participation in population-based surveys has fallen, it is increasingly challenging to estimate accurately the prevalence of alcohol and tobacco use. Wastewater-based epidemiology (WBE) is an alternative approach for estimating substance use at the population level that does not rely upon survey participation. This study examined spatio-temporal patterns in nicotine (a proxy for tobacco) and alcohol consumption in the Australian population via WBE. METHODS: Daily wastewater samples (n = 164) were collected at 18 selected wastewater treatment plants across Australia, covering approximately 45% of the total population. Nicotine and alcohol metabolites in the samples were measured using liquid chromatography-tandem mass spectrometry. Daily consumption of nicotine and alcohol and its associated uncertainty were computed using Monte Carlo simulations. Nation-wide daily average and weekly consumption of these two substances were extrapolated using ordinary least squares and mixed-effect models. FINDINGS: Nicotine and alcohol consumption was observed in all communities. Consumption of these substances in rural towns was three to four times higher than in urban communities. The spatial consumption pattern of these substances was consistent across the monitoring periods in 2014-15. Nicotine metabolites significantly reduced by 14-25% (P = 0.001-0.008) (2014-15) in some catchments. Alcohol consumption remained constant over the studied periods. Strong weekly consumption patterns were observed for alcohol but not nicotine. Nation-wide, the daily average consumption per person (aged 15-79 years) was estimated at approximately 2.5 cigarettes and 1.3-2.0 standard drinks (weekday weekend) of alcohol. These estimates were close to the sale figure and apparent consumption, respectively. CONCLUSIONS: Wastewater-based epidemiology is a feasible method for objectively evaluating the geographic, temporal and weekly profiles of nicotine and alcohol consumption in different communities nationally. PMID- 29333693 TI - Polypeptide Polymer Brushes by Light-Induced Surface Polymerization of Amino Acid N-Carboxyanhydrides. AB - Silicon wafers are decorated with photoamine generator 4,5-dimethoxy-2 nitrobenzyl 3-(triethoxysilyl)propyl carbamate. UV-irradiation in the presence of benzyl-l-glutamate N-carboxyanhydride is carried out, resulting in the release of the surface-bound primary amines, making them viable N-carboxyanhydride (NCA) polymerization initiators. Successful polypeptide grafting is confirmed by water contact angle measurements as well as by ellipsometry, revealing a poly(benzyl-l glutamate) (PBLG) layer of ~3 nm. X-ray photoelectron spectroscopy confirms the presence of amide groups in the grafted PBLG while time-of-flight secondary ion mass spectroscopy provides additional evidence for the presence of PBLG on the surface. Evaluation of negative control samples confirms successful UV surface grafting. The approach is thus established as a viable general method for light exposure directable polypeptide functionalization of silicon surfaces. PMID- 29333695 TI - FCI Literature Prize: T. Schirmeister, C. Schmuck, P. R. Wich / Foundation for Polish Science Award: D. T. Gryko / Heinz Award: J. M. DeSimone. PMID- 29333694 TI - Chemical Composition Fractionation of Olefin Plastomers/Elastomers by Solvent and Thermal Gradient Interaction Chromatography. AB - Olefin plastomers/elastomers are typically copolymers with high comonomer contents and low crystallinities. Therefore, the fractionation of these materials with crystallization-based methods is not feasible. On the other hand, solvent and temperature gradient interaction chromatography (SGIC and TGIC, respectively) are suitable techniques for the separation of olefin copolymers with regard to their chemical composition. In this study, the application ranges of both techniques are investigated and compared for ethylene-propylene (EP) copolymers. A linear dependency of ethylene content versus elution volume is obtained with SGIC in practically the whole ethylene range. In the case of TGIC, a linear dependency is obtained within certain ethylene content limits. The accessible ethylene content separation range for TGIC is 50-100 mol% ethylene, and a broader 26-100 mol% ethylene range is accessible for SGIC, the latter being the technique of choice in the analysis of EP rubbers. PMID- 29333691 TI - The innate immune system in chronic cardiomyopathy: a European Society of Cardiology (ESC) scientific statement from the Working Group on Myocardial Function of the ESC. AB - Activation of the immune system in heart failure (HF) has been recognized for over 20 years. Initially, experimental studies demonstrated a maladaptive role of the immune system. However, several phase III trials failed to show beneficial effects in HF with therapies directed against an immune activation. Preclinical studies today describe positive and negative effects of immune activation in HF. These different effects depend on timing and aetiology of HF. Therefore, herein we give a detailed review on immune mechanisms and their importance for the development of HF with a special focus on commonalities and differences between different forms of cardiomyopathies. The role of the immune system in ischaemic, hypertensive, diabetic, toxic, viral, genetic, peripartum, and autoimmune cardiomyopathy is discussed in depth. Overall, initial damage to the heart leads to disease specific activation of the immune system whereas in the chronic phase of HF overlapping mechanisms occur in different aetiologies. PMID- 29333696 TI - The Plantain Proteome, a Focus on Allele Specific Proteins Obtained from Plantain Fruits. AB - Proteomics has been applied with great potential to elucidate molecular mechanisms in plants. This is especially valid in the case of non-model crops of which their genome has not been sequenced yet, or is not well annotated. Plantains are a kind of cooking bananas that are economically very important in Africa, India, and Latin America. The aim of this work was to characterize the fruit proteome of common dessert bananas and plantains and to identify proteins that are only encoded by the plantain genome. We present the first plantain fruit proteome. All data are available via ProteomeXchange with identifier PXD005589. Using our in-house workflow, we found 37 alleles to be unique for plantain covered by 59 peptides. Although we do not have access (yet) to whole-genome sequencing data from triploid banana cultivars, we show that proteomics is an easily accessible complementary alternative to detect different allele specific SNPs/SAAPs. These unique alleles might contribute toward the differences in the metabolism between dessert bananas and plantains. This dataset will stimulate further analysis by the scientific community, boost plantain research, and facilitate plantain breeding. PMID- 29333697 TI - Lactic Acid Bacteria May Impact Intestinal Barrier Function by Modulating Goblet Cells. AB - SCOPE: Lactic acid bacteria (LAB) are recognized to promote gastrointestinal health by mechanisms that are not fully understood. LABs might modulate the mucus and thereby enhance intestinal barrier function. Herein, we investigate effects of different LAB strains and species on goblet cell genes involved in mucus synthesis. METHODS AND RESULTS: Gene expression profiles of goblet-cell associated products (mucin MUC2, trefoil factor 3, resistin-like molecule beta, carbohydrate sulfotransferase 5, and galactose-3-O-sulfotransferase 2) induced by LAB or their derived conditioned medium in human goblet cell line LS174T are studied. Effects of LAB on gene transcription are assessed with or without exposure to TNF-alpha, IL-13, or the mucus damaging agent tunicamycin. LAB do impact the related genes in a species- and strain-specific fashion and their effects are different in the presence of the cytokines and tunicamycin. Bioactive factors secreted by some strains are also found to regulate goblet cell-related genes. CONCLUSION: Our findings provide novel insights in differences in modulatory efficacy on mucus genes between LAB species and strains. This study further unravels direct interactions between LAB and intestinal goblet cells, and highlights the importance of rationally selecting appropriate LAB candidates to achieve specific benefits in the gut. PMID- 29333698 TI - Design of Enzyme Micelles with Controllable Concavo-Convex Micromorphologies for Highly Enhanced Stability and Catalytical Activity. AB - Concavo-convex micelles with controllable sizes and nanostructures are prepared via self-assembling polymer-enzyme (e.g., shellac enzyme) conjugates with heterogeneous polymer chains, which exhibit higher enzyme stability (300%) and bioactivity (760%) comparing with the well-defined ones. The applied amphiphilic and negatively charged copolymer, poly (methyl methacrylate)-block-poly (sodium p styrene sulfonate), is synthesized via reversible addition-fragmentation chain transfer polymerization to modify shellac enzyme and immobilize the enzyme bioactivity inducer by covalent conjugation and electrostatic attraction, respectively. The degradation test of catechol confirms the application potential of as-prepared micelles as an efficient and economical decontaminant. PMID- 29333699 TI - Pomegranate-Structured Silica/Sulfur Composite Cathodes for High-Performance Lithium-Sulfur Batteries. AB - Porous materials have many structural advantages for energy storage and conversion devices such as rechargeable batteries, supercapacitors, and fuel cells. When applied as a host material in lithium-sulfur batteries, porous silica materials with a pomegranate-like architecture can not only act as a buffer matrix for accommodating a large volume change of sulfur, but also suppress the polysulfide shuttle effect. The porous silica/sulfur composite cathodes exhibit excellent electrochemical performances including a high specific capacity of 1450 mA h g-1 , a reversible capacity of 82.9 % after 100 cycles at a rate of C/2 (1 C=1672 mA g-1 ) and an extended cyclability over 300 cycles at 1 C-rate. Furthermore, the high polysulfide adsorption property of porous silica has been proven by ex-situ analyses, showing a relationship between the surface area of silica and polysulfide adsorption ability. In particular, the modified porous silica/sulfur composite cathode, which is treated by a deep-lithiation process in the first discharge step, exhibits a highly reversible capacity of 94.5 % at 1C rate after 300 cycles owing to a formation of lithiated-silica frames and stable solid-electrolyte-interphase layers. PMID- 29333700 TI - Understanding Australian medical student attitudes towards older people. AB - OBJECTIVE: The aim of this article was to review the literature around Australian medical student attitudes towards older people. METHODS: An Ovid cross-search and SCOPUS search were performed using keywords such as 'Attitude', 'Medical Student' and 'Aged or Older or Elderly'. RESULTS: Several recent studies have investigated the attitudes of Australian medical students towards older people. Baseline attitudes at two medical schools were positive. Three studies quantified attitude improvement after curriculum intervention. All the studies used US-developed instruments, which have not been validated in Australia. Qualitative studies have described mixed attitudes towards older people: negative themes included nihilism, paternalism, communication issues, greater morbidity and reduced quality of life. Positively, students placed value on clinical decision-making and critical reflection during residential aged care placements. CONCLUSION: Australian medical students' attitudes towards older people are mixed and not well understood based on quantitative measures developed for use in the US and on qualitative evidence. Future research in this area requires a reliable and locally-validated instrument. PMID- 29333701 TI - The Childhood Arthritis and Rheumatology Research Alliance Consensus Treatment Plans: Toward Comparative Effectiveness in the Pediatric Rheumatic Diseases. AB - The pediatric rheumatic diseases are a heterogeneous group of rare diseases, posing a number of challenges for the use of traditional clinical and translational research methods. Innovative comparative effectiveness approaches are needed to efficiently study treatment strategies and disease outcomes. The Childhood Arthritis and Rheumatology Research Alliance (CARRA) developed the consensus treatment plan (CTP) approach as a comparative effectiveness tool for research in pediatric rheumatology. CTPs are treatment strategies, developed by consensus methods among CARRA members, intended to reduce variation in treatment approaches, standardize outcome measurements, and allow for comparison of the effectiveness of different approaches with the goal of improving disease outcomes. To date, CTPs have been published for 8 different diseases and disease manifestations. The approach has been successfully piloted for juvenile localized scleroderma, systemic juvenile idiopathic arthritis (JIA), polyarticular JIA, dermatomyositis, and lupus nephritis. Large-scale studies are underway for systemic JIA and polyarticular JIA, with the CARRA patient registry serving as the data collection platform. These studies have been designed with stakeholder involvement, including active input from CARRA providers, patients, and parents, with the goal of increasing feasibility and ensuring the relevance of the outcomes. These studies include ancillary biologic specimen collection intended to support additional translational and mechanistic studies. Data from these ongoing CTP studies will provide more information on the ability of this approach to identify effective treatment strategies and improve outcomes in the pediatric rheumatic diseases. PMID- 29333702 TI - MAML1 and TWIST1 co-overexpression promote invasion of head and neck squamous cell carcinoma. AB - AIMS: Head and neck squamous cell carcinoma (HNSCC) is the seventh most common cancer worldwide with considerable morbidity and mortality. Invasion and metastasis of HNSCC is a complex process involving multiple molecules and signaling pathways. Twist Family BHLH Transcription Factor 1 (TWIST1) and Mastermind-like 1 (MAML1) are essential in induction of epithelial-mesenchymal transition through direct regulation of implicated molecules in cellular adhesion, migration and invasion. Our aim in this study was to assess the clinical significance of MAML1 and TWIST1 expression in HNSCC, and elucidate the probable correlation between these genes to exhibit their possible associations with progression and metastasis of the disease. METHODS: The gene expression profile of MAML1 and TWIST1 was assessed in fresh tumoral compared to distant tumor-free tissues of 55 HNSCC patients using quantitative real-time Polymerase chain reaction (PCR). RESULTS: Significant overexpression of MAML1 and TWIST1 mRNA was observed in 49.1% and 38.2% (P ? 0.05) of tumor specimens, respectively. Overexpression of MAML1 was associated with vascular invasion (P = 0.048). Concomitant overexpression of MAML1 and TWIST1 was significantly correlated to each other (P = 0.004). Co-overexpression of the genes was significantly correlated to the various clinicopathological indices of poor prognosis including depth of tumor invasion (P < 0.01), lymphatic invasion and grade of tumor cell differentiation (P < 0.05). CONCLUSIONS: Significant correlation between MAML1 and TWIST1 in HNSCC was revealed. This study was the first report elucidating MAML1 clinical relevance in HNSCC. These new findings suggest an oncogenic role for concomitant expression of MAML1 and TWIST1 genes in HNSCC invasion and metastasis. PMID- 29333703 TI - Clinical aspects of diabetes in pregnancy. PMID- 29333704 TI - Asian horses deepen the MSY phylogeny. AB - Humans have shaped the population history of the horse ever since domestication about 5500 years ago. Comparative analyses of the Y chromosome can illuminate the paternal origin of modern horse breeds. This may also reveal different breeding strategies that led to the formation of extant breeds. Recently, a horse Y chromosomal phylogeny of modern horses based on 1.46 Mb of the male-specific Y (MSY) was generated. We extended this dataset with 52 samples from five European, two American and seven Asian breeds. As in the previous study, almost all modern European horses fall into a crown group, connected via a few autochthonous Northern European lineages to the outgroup, the Przewalski's Horse. In total, we now distinguish 42 MSY haplotypes determined by 158 variants within domestic horses. Asian horses show much higher diversity than previously found in European breeds. The Asian breeds also introduce a deep split to the phylogeny, preliminarily dated to 5527 +/- 872 years. We conclude that the deep splitting Asian Y haplotypes are remnants of a far more diverse ancient horse population, whose haplotypes were lost in other lineages. PMID- 29333706 TI - Estimating the footprint of pollution on coral reefs with models of species turnover. AB - Ecological communities typically change along gradients of human impact, although it is difficult to estimate the footprint of impacts for diffuse threats such as pollution. We developed a joint model (i.e., one that includes multiple species and their interactions with each other and environmental covariates) of benthic habitats on lagoonal coral reefs and used it to infer change in benthic composition along a gradient of distance from logging operations. The model estimated both changes in abundances of benthic groups and their compositional turnover, a type of beta diversity. We used the model to predict the footprint of turbidity impacts from past and recent logging. Benthic communities far from logging were dominated by branching corals, whereas communities close to logging had higher cover of dead coral, massive corals, and soft sediment. Recent impacts were predicted to be small relative to the extensive impacts of past logging because recent logging has occurred far from lagoonal reefs. Our model can be used more generally to estimate the footprint of human impacts on ecosystems and evaluate the benefits of conservation actions for ecosystems. PMID- 29333705 TI - A Light Harvesting, Self-Powered Monolith Tactile Sensor Based on Electric Field Induced Effects in MAPbI3 Perovskite. AB - Organolead trihalide perovskite MAPbI3 shows a distinctive combination of properties such as being ferroelectric and semiconducting, with ion migration effects under poling by electric fields. The combination of its ferroelectric and semiconducting nature is used to make a light harvesting, self-powered tactile sensor. This sensor interfaces ZnO nanosheets as a pressure-sensitive drain on the MAPbI3 film and once poled is operational for at least 72 h with just light illumination. The sensor is monolithic in structure, has linear response till 76 kPa, and is able to operate continuously as the energy harvesting mechanism is decoupled from its pressure sensing mechanism. It has a sensitivity of 0.57 kPa-1 , which can be modulated by the strength of the poling field. The understanding of these effects in perovskite materials and their application in power source free devices are of significance to a wide array of fields where these materials are being researched and applied. PMID- 29333707 TI - Impact of Gastric Acid Induced Surface Changes on Mechanical Behavior and Optical Characteristics of Dental Ceramics. AB - PURPOSE: To test the impact of exposure to artificial gastric acid combined with toothbrush abrasion on the properties of dental ceramics. Earlier research has indicated that immersion in artificial gastric acid has caused increased surface roughness of dental ceramics; however, the combined effects of acid immersion and toothbrush abrasion and the impact of increased surface roughness on mechanical strength and optical properties have not been studied. MATERIALS AND METHODS: Three commercially available ceramics were chosen for this study: feldspathic porcelain, lithium disilicate glass-ceramic, and monolithic zirconium oxide. The specimens (10 * 1 mm discs) were cut, thermally treated as required, and polished. Each material was divided into four groups (n = 8 per group): control (no exposure), acid only, brush only, acid + brush. The specimens were immersed in artificial gastric acid (50 ml of 0.2% [w/v] sodium chloride in 0.7% [v/v] hydrochloric acid mixed with 0.16 g of pepsin powder, pH = 2) for 2 minutes and rinsed with deionized water for 2 minutes. The procedure was repeated 6 times/day * 9 days, and specimens were stored in deionized water at 37 degrees C. Toothbrush abrasion was performed using an ISO/ADA design brushing machine for 100 cycles/day * 9 days. The acid + brush group received both treatments. Specimens were examined under SEM and an optical microscope for morphological changes. Color and translucency were measured using spectrophotometer CIELAB coordinates (L*, a*, b*). Surface gloss was measured using a gloss meter. Surface roughness was measured using a stylus profilometer. Biaxial flexural strength was measured using a mechanical testing machine. The data were analyzed by one-way ANOVA followed by Tukey's HSD post hoc test (p < 0.05). RESULTS: Statistically significant changes were found for color, gloss, and surface roughness for porcelain and e.max specimens. No statistically significant changes were found for any properties of zirconia specimens. CONCLUSIONS: The acid treatment affected the surface roughness, color, and gloss of porcelain and e.max ceramics. The changes in translucency and mechanical strength for all materials were not statistically significant. Zirconia ceramic showed resistance to all treatments. PMID- 29333709 TI - The 'airway spider': an education tool to assist teaching human factors and ergonomics in airway management. PMID- 29333708 TI - Difficult mask ventilation and muscle relaxation. PMID- 29333710 TI - Mechanical ventilation mode and postoperative pulmonary complications - a reply. PMID- 29333711 TI - Double-blind and single-blind retractable placebo needles. PMID- 29333712 TI - Comparing bougie-guided and conventional nasotracheal intubations using videolaryngoscopy. PMID- 29333713 TI - Difficult mask ventilation and muscle relaxation - a reply. PMID- 29333714 TI - Mechanical ventilation mode and postoperative pulmonary complications. PMID- 29333715 TI - Social prescribing and pre-operative care. PMID- 29333716 TI - National standards for triaging elderly trauma patients. PMID- 29333717 TI - Correction. PMID- 29333718 TI - Standard abbreviations. PMID- 29333719 TI - Ion Mobility-Enhanced Data-Independent Acquisitions Enable a Deep Proteomic Landscape of Oligodendrocytes. PMID- 29333720 TI - Degree of SGLT1 phosphorylation is associated with but does not determine segment specific glucose transport features in the porcine small intestines. AB - Glucose-induced electrogenic ion transport is higher in the porcine ileum compared with the jejunum despite equal apical abundance of SGLT1. The objective of this study was a detailed determination of SGLT1 and GLUT2 expressions at mRNA and protein levels along the porcine small intestinal axis. Phosphorylation of SGLT1 at serine 418 was assessed as a potential modulator of activity. Porcine intestinal tissues taken along the intestinal axis 1 h or 3 h after feeding were analyzed for relative mRNA (RT-PCR) and protein levels (immunoblot) of SGLT1, pSGLT1, GLUT2, (p)AMPK, beta2 -receptor, and PKA substrates. Functional studies on electrogenic glucose transport were done (Ussing chambers: short circuit currents (Isc )). Additionally, effects of epinephrine (Epi) administration on segment-specific glucose transport and pSGLT1 content were examined. SGLT1 and GLUT2 expression was similar throughout the small intestines but lower in the duodenum and distal ileum. pSGLT1 abundance was significantly lower in the ileum compared with the jejunum associated with significantly higher glucose-induced Isc . SGLT1 phosphorylation was not inducible by Epi. Epi treatment decreased glucose-induced Isc and glucose flux rates in the jejunum but increased basal Isc in the ileum. Epi-induced PKA activation was detectable in jejunal tissue. These results may indicate that SGLT1 phosphorylation at Ser418 represents a structural change to compensate for certain conditions that may decrease glucose transport (unfavorable driving forces/changed apical membrane potential) rather than being the cause for the overall differences in glucose transport characteristics between the jejunum and ileum. PMID- 29333721 TI - Carbohydrate dose influences liver and muscle glycogen oxidation and performance during prolonged exercise. AB - This study investigated the effect of carbohydrate (CHO) dose and composition on fuel selection during exercise, specifically exogenous and endogenous (liver and muscle) CHO oxidation. Ten trained males cycled in a double-blind randomized order on 5 occasions at 77% VO2max for 2 h, followed by a 30-min time-trial (TT) while ingesting either 60 g.h-1 (LG) or 75 g.h-113 C-glucose (HG), 90 g.h-1 (LGF) or 112.5 g.h-113 C-glucose-13 C-fructose ([2:1] HGF) or placebo. CHO doses met or exceed reported intestinal transporter saturation for glucose and fructose. Indirect calorimetry and stable mass isotope [13 C] tracer techniques were utilized to determine fuel use. TT performance was 93% "likely/probable" to be improved with LGF compared with the other CHO doses. Exogenous CHO oxidation was higher for LGF and HGF compared with LG and HG (ES > 1.34, P < 0.01), with the relative contribution of LGF (24.5 +/- 5.3%) moderately higher than HGF (20.6 +/- 6.2%, ES = 0.68). Increasing CHO dose beyond intestinal saturation increased absolute (29.2 +/- 28.6 g.h-1 , ES = 1.28, P = 0.06) and relative muscle glycogen utilization (9.2 +/- 6.9%, ES = 1.68, P = 0.014) for glucose-fructose ingestion. Absolute muscle glycogen oxidation between LG and HG was not significantly different, but was moderately higher for HG (ES = 0.60). Liver glycogen oxidation was not significantly different between conditions, but absolute and relative contributions were moderately attenuated for LGF (19.3 +/- 9.4 g.h-1 , 6.8 +/- 3.1%) compared with HGF (30.5 +/- 17.7 g.h-1 , 10.1 +/- 4.0%, ES = 0.79 & 0.98). Total fat oxidation was suppressed in HGF compared with all other CHO conditions (ES > 0.90, P = 0.024-0.17). In conclusion, there was no linear dose response for CHO ingestion, with 90 g.h-1 of glucose-fructose being optimal in terms of TT performance and fuel selection. PMID- 29333722 TI - Cardiovascular adjustments during anticipated postural changes. AB - It is well-documented that feedforward cardiovascular responses occur at the onset of exercise, but it is unclear if such responses are associated with other types of movements. In this study, we tested the hypothesis that feedforward cardiovascular responses occur when a passive (imposed) 60 degrees head-up tilt is anticipated, such that changes in heart rate and carotid artery blood flow (CBF) commence prior to the onset of the rotation. A light cue preceded head-up tilts by 10 sec, and heart rate and CBF were determined for 5-sec time periods prior to and during tilts. Even after these stimuli were provided for thousands of trials spanning several months, no systematic changes in CBF and heart rate occurred prior to tilts, and variability in cardiovascular adjustments during tilt remained substantial over time. We also hypothesized that substitution of 20 degrees for 60 degrees tilts in a subset of trials would result in exaggerated cardiovascular responses (as animals expected 60 degrees tilts), which were not observed. These data suggest that cardiovascular adjustments during passive changes in posture are mainly elicited by feedback mechanisms, and that anticipation of passive head-up tilts does not diminish the likelihood that a decrease in carotid blood flow will occur during the movements. PMID- 29333723 TI - Nandrolone-induced nuclear accumulation of MyoD protein is mediated by Numb, a Notch inhibitor, in C2C12 myoblasts. AB - Signaling via the androgen receptor (AR) stimulates myogenic progenitor differentiation. In addition, myogenic differentiation factor D (MyoD) and Numb, a Notch inhibitor, play key roles in regulating myogenic differentiation. Nandrolone, an anabolic steroid, upregulates both MyoD and Numb expression in myogenic cells. However, the molecular mechanisms by which MyoD is upregulated by nandrolone are unclear. Moreover, the potential crosstalk between nandrolone, MyoD, and Numb is not well understood. With these considerations in mind, we examined the effects of nandrolone on the expression of MyoD mRNA and protein, and determined the interactions of MyoD and Numb in the presence or absence of nandrolone in differentiating C2C12 myoblasts. Nandrolone increased MyoD mRNA and protein expression and significantly enhanced nuclear translocation of MyoD protein. The later effect of nandrolone was blunted by siRNA against Numb. Immunoprecipitation (IP) studies confirmed that Numb forms complexes with MyoD. Chromatin IP revealed that in the presence of nandrolone, Numb is recruited to a region of the MyH7 promotor containing the E-box to which MyoD binds. These data indicate that nandrolone-regulated MyoD activation occurs mainly through a posttranslational mechanism which promotes MyoD nuclear accumulation, and suggest that this effect of nandrolone is, at least in part, mediated by Numb. PMID- 29333724 TI - Voluntary activation and twitch potentiation of the elbow flexors across supinated, neutral, and pronated forearm orientations. AB - Elbow flexion force depends on forearm orientation with supinated and neutral being stronger than pronated. The purpose of this study was to assess the influence of forearm orientation on voluntary activation (VA), postactivation potentiation (PAP), and twitch properties. Eleven males (23 +/- 3 years) performed isometric elbow flexion maximal voluntary contractions (MVC) in supinated, neutral, and pronated forearm orientations with supramaximal stimulation to the biceps brachii muscle belly before, during, and after the MVC. MVC and VA were higher in supinated (213.6 +/- 49.6 N; 93.0 +/- 5.2%) and neutral (243.6 +/- 48.0 N; 96.1 +/- 3.2%) compared with pronated (113.6 +/- 21.3 N; 70.9 +/- 20.4%) (P < 0.05), while PAP did not differ across the three orientations (71.6 +/- 42.2%) (P > 0.05). In the rested state, pronated peak tension (PT) was less compared with supinated (42%). In the potentiated state, pronated PT was less than supinated (50%) and neutral (53%) (P < 0.05). Reduced strength in the pronated orientation is partially attributed to reduced drive; however, reductions in peak tension indicate that there also is a mechanical disadvantage when the forearm is placed into a pronated orientation, and this does not alter PAP. PMID- 29333725 TI - Chemoreflex function and brain blood flow during upright posture in men and women. AB - Orthostatic intolerance is more common in women than men, and some studies have found that women in the early follicular (EF) phase of the menstrual cycle experience the greatest feelings of lightheadedness. Chemoreflex function while supine or upright was investigated to determine the potential contribution of ventilatory control to these phenomena. Men (n = 13) and women (n = 14) were tested while supine and 70 degrees upright (head-up tilt [HUT]) and given: (1) normoxia or (2) hypercapnia (5% CO2 ). Women were tested during the EF phase (days 2-5) and the midluteal phase (ML; days 18-24). During HUT, all groups reduced cerebrovascular resistance index (men: 1.45 +/- 0.08 to 1.42 +/- 0.07 mmHg/(cm.sec), EF: 1.38 +/- 0.11 to 1.26 +/- 0.10 mmHg/(cm.sec), ML: 1.25 +/- 0.07 to 1.09 +/- 0.07 mmHg/(cm.sec); P <= 0.019); however, only men increased ventilation (men: 11.99 +/- 0.65 to 13.24 +/- 0.83 L/min; P < 0.01). In response to hypercapnia in the supine position, men had a smaller increase of diastolic middle cerebral artery velocity compared to women in the ML phase (men: +9.1 +/- 2.0 cm/sec, ML: +15.7 +/- 3.1 cm/sec, P = 0.039). During hypercapnia in HUT (compared to hypercapnia while supine), all groups had an augmented increase of ventilation (men: +7.46 +/- 1.34 vs. +5.84 +/- 1.09 L/min, EF: +6.71 +/- 0.83 vs. +5.48 +/- 0.66 L/min, ML: +7.99 +/- 1.13 vs. +5.65 +/- 0.81 L/min; P <= 0.028), suggesting that all groups experienced augmentation of the CO2 chemoreflex; however, only men had an augmented increase of mean arterial pressure (+0.10 +/- 0.58 to +4.71 +/- 0.87 mmHg; P <= 0.017). Our results indicate that men have different ventilatory responses to upright tilt compared to women, and that the CO2 chemoreflex response is enhanced in upright posture in both sexes. Furthermore, sexually dimorphic blood pressure responses to this chemoreflex enhancement are evident. PMID- 29333726 TI - Calcium current properties in dystrophin-deficient ventricular cardiomyocytes from aged mdx mice. AB - Duchenne muscular dystrophy (DMD), caused by mutations in the gene encoding for the cytoskeletal protein dystrophin, is linked with severe cardiac complications including cardiomyopathy development and cardiac arrhythmias. We and others recently reported that currents through L-type calcium (Ca) channels were significantly increased, and channel inactivation was reduced in dystrophin deficient ventricular cardiomyocytes derived from the mdx mouse, the most commonly used animal model for human DMD. These gain-of-function Ca channel abnormalities may enhance the risk of Ca-dependent arrhythmias and cellular Ca overload in the dystrophic heart. All studies, which have so far investigated L type Ca channel properties in dystrophic cardiomyocytes, have used hearts from either neonatal or young adult mdx mice as cell source. In consequence, the dimension of the Ca channel abnormalities present in the severely-diseased aged dystrophic heart has remained unknown. Here, we have studied potential abnormalities in Ca currents and intracellular Ca transients in ventricular cardiomyocytes derived from aged dystrophic mdx mice. We found that both the L type and T-type Ca current properties of mdx cardiomyocytes were similar to those of myocytes derived from aged wild-type mice. Accordingly, Ca release from the sarcoplasmic reticulum was normal in cardiomyocytes from aged mdx mice. This suggests that, irrespective of the presence of a pronounced cardiomyopathy in aged mdx mice, Ca currents and Ca release in dystrophic cardiomyocytes are normal. Finally, our data imply that dystrophin- regulation of L-type Ca channel function in the heart is lost during aging. PMID- 29333727 TI - The relation between maximal voluntary force in m. palmaris longus and the temporal and spatial summation of muscle fiber recruitment in human subjects. AB - This study aimed at looking at the frequency (T-score) and the amplitude (S score) of fiber use during contraction of a forearm muscle, m. palmaris longus, as measured by acoustic myography (AMG). An additional aim was to relate the T- and S-scores to the recorded force obtained from a hand dynamometer. The hypothesis being that temporal and spatial summation of muscle fiber contraction in a given muscle during a given movement, can together describe a given obtained force. Force measurements were carried out on 12 healthy human subjects aged 19 68 years (6 men & 6 women), while their m. palmaris longus contractile function was measured using an acoustic myography CURO device. Force production was varied from 90 to 10% of assessed maximal voluntary force (MVF), and also monitored over a 1 min period of 50% MVF. Linear regression analysis was applied to relate force to spatial and temporal summation. Muscle strength was sustained by changing the frequency and/or the number of active fibere at any given point in time. Force production, whilst stronger for men than women, was regulated in a similar fashion for both sexes and was closely correlated with the AMG T- and S-scores. It is concluded that AMG is a noninvasive method which can be readily applied to accurately describe how a subject uses a given muscle during any given movement. These findings have relevance when considering training strategies in subjects with muscle trauma or disease, in the elderly, or for both amateur and top professional athletes. PMID- 29333728 TI - Population correlations do not support the existence of set points for blood levels of calcium or glucose - a new model for homeostasis. AB - The prevailing teaching regarding homeostasis, and in particular endocrine homeostasis, includes the fundamental concept of a "set point," which represents a target or optimum level defended by physiological control mechanisms. Analogies for the description and teaching of this concept have included thermostats and cruise controls. We previously demonstrated that such a set-point model of regulation implies that in population data of parameter set point/controlling hormone levels, correlations between the parameter and its controlling hormone must be in the direction of the response of the parameter to its controlling hormone, and that in thyroid homeostasis this relationship is not observed. In this work we similarly examined population correlations, extracted from the literature, for the parameters glucose and calcium, and their controlling hormones. We found 10 correlations. Most were highly significant (P < 0.01). All were in the direction of the response of the controlling hormone to the parameter. Therefore, none were consistent with the pattern implied by a set point model of regulation. Instead all were consistent with an "equilibrium point" model of regulation, whereby ambient levels have no particular connotation to the individual, and result passively from the interplay of physiological processes. We conclude that glucose and calcium regulation, like thyroid regulation, are not centered on set points. This may reflect a general property of homeostasis. We provide an alternative mechanistic analogy, without a set point, for the heuristic description and teaching, of homeostasis. PMID- 29333729 TI - Immunoengineering with biomaterials for enhanced cancer immunotherapy. AB - Cancer immunotherapy has recently shown dramatic clinical success inducing durable response in patients of a wide variety of malignancies. Further improvement of the clinical outcome with immune related cancer treatment requests more exquisite manipulation of a patient's immune system with increased immunity against diseases while mitigating the toxicities. To meet this challenge, biomaterials applied to immunoengineering are being developed to achieve tissue- and/or cell-specific immunomodulation and thus could potentially enhance both the efficacy and safety of current cancer immunotherapies. Here, we review the recent advancement in the field of immunoengineering using biomaterials and their applications in promoting different modalities of cancer immunotherapies, with focus on cell-, antibody-, immunomodulator-, and gene-based immune related treatments and their combinations with conventional therapies. Challenges and opportunities are discussed in applying biomaterials engineering strategies in the development of future cancer immunotherapies. This article is categorized under: Therapeutic Approaches and Drug Discovery > Nanomedicine for Oncologic Disease Therapeutic Approaches and Drug Discovery > Emerging Technologies Implantable Materials and Surgical Technologies > Nanomaterials and Implants. PMID- 29333730 TI - Day-to-day mastery and self-efficacy changes during a smoking quit attempt: Two studies. AB - OBJECTIVE: In social-cognitive theory, it is hypothesized that mastery experiences (successfully implementing behaviour change) are a source of self efficacy, and self-efficacy increases the opportunity for experiencing mastery. Vicarious experiences (seeing others succeed) are suggested as another source of self-efficacy. However, the hypothesis of this reciprocal relationship has not been tested using a day-to-day design. DESIGN: This article reports findings from two intensive longitudinal studies, testing the reciprocal relationship of self efficacy and its two main sources within the naturally occurring process of quitting smoking (without intervention). Smokers (Study 1: N = 100 smokers in smoker-non-smoker couples (1,787 observations); Study 2; N = 81 female (1,401 observations) and N = 79 male smokers (1,328 observations) in dual-smoker couples) reported their mastery experiences (not smoking the entire day; in Study 2, mastery experience of partner served as vicarious experience) and smoking specific self-efficacy for 21 days after a self-set quit date. METHODS: Time lagged multilevel analyses were conducted using change-predicting-change models. RESULTS: Increases in mastery experiences predicted changes in self-efficacy, and increases in self-efficacy predicted changes in mastery experiences in Study 1. Study 2 replicated these results and showed contagion effects (partners' mastery on individuals' mastery and partners' self-efficacy on individuals' self efficacy), but found no evidence for a link between vicarious experiences (partners' mastery experiences) and individuals' self-efficacy. CONCLUSIONS: This article demonstrates that mastery experiences and self-efficacy show a reciprocal relationship within smokers during a quit attempt in a day-to-day design, as well as contagion effects in couples when both partners try to quit simultaneously. Statement of Contribution What is already known on this subject? Self-efficacy is one of the strongest correlates of quitting smoking. Despite the assumptions on how self-efficacy is built formulated by Bandura two decades ago, there is only little empirical evidence on the origins of self-efficacy. The open research questions for these two studies were whether mastery experiences (experiencing success with the new behavior) and vicarious experiences (seeing others succeed) facilitate the smoking cessation process, whether mastery experiences and self efficacy affect one another reciprocally and whether intimate partners serve as role models for each other. What does this study add? Mastery experiences and self-efficacy are mutually depended on a day-to-day basis within the smoking cessation process. Effects of mastery experiences fade rapidly, indicating that constant successes are needed to keep up self-efficacy. Dual-smoker couples show similar changes in a contagious way - if mastery experiences increase in one person, mastery experiences increase in the partner; if self-efficacy increases in one person, self-efficacy increases in the partner, too. No support for vicarious experiences (mastery experiences in one person affecting self-efficacy in the partner and vice versa) as sources of self-efficacy in the quitting process was found. PMID- 29333731 TI - William G. Bradley, Jr, MD, PhD, FACR (1942-2017). PMID- 29333732 TI - Artificial intelligence will reduce the need for clinical medical physicists. PMID- 29333733 TI - State of the JACMP. PMID- 29333734 TI - Synthesis, Cytotoxic, and Antibacterial Evaluation of Quinazolinone Derivatives with Substituted Amino Moiety. AB - A series of novel quinazolinone derivatives containing a substituted amino moiety were synthesized, evaluated for their cytotoxic and antibacterial activities. The results of MTT assay showed that all synthesized target compounds 5A - 5O showed potent cytotoxicity against SGC-7901 (IC50 , 0.72 - 1.41 MUm). Moreover, the compounds 5D, 5I, and 5K showed better selectivity as compared with positive controls pemetrexed and MTX due to weak cytotoxicity against normal tissue cell line HUVSMC. Among synthesized compounds, the compounds 5E, 5J, 5L, and 5N showed broad-spectrum cytotoxic activities against at least four cancer cell lines at a micromolar level. The results of antibacteria evaluation revealed that all synthesized compounds showed good to moderate antibacterial activities against Gram-negative bacteria Escherichia coli. Among them, the MIC values of the compounds 5C, 5F, and 5M were 0.31 MUg/mL. PMID- 29333735 TI - Hot-Electron-Assisted Femtosecond All-Optical Modulation in Plasmonics. AB - The optical Kerr nonlinearity of plasmonic metals provides enticing prospects for developing reconfigurable and ultracompact all-optical modulators. In nanostructured metals, the coherent coupling of light energy to plasmon resonances creates a nonequilibrium electron distribution at an elevated electron temperature that gives rise to significant Kerr optical nonlinearities. Although enhanced nonlinear responses of metals facilitate the realization of efficient modulation devices, the intrinsically slow relaxation dynamics of the photoexcited carriers, primarily governed by electron-phonon interactions, impedes ultrafast all-optical modulation. Here, femtosecond (~190 fs) all-optical modulation in plasmonic systems via the activation of relaxation pathways for hot electrons at the interface of metals and electron acceptor materials, following an on-resonance excitation of subradiant lattice plasmon modes, is demonstrated. Both the relaxation kinetics and the optical nonlinearity can be actively tuned by leveraging the spectral response of the plasmonic design in the linear regime. The findings offer an opportunity to exploit hot-electron-induced nonlinearities for design of self-contained, ultrafast, and low-power all-optical modulators based on plasmonic platforms. PMID- 29333736 TI - Underestimated caregiver burden by cancer patients and its association with quality of life, depression and anxiety among caregivers. AB - This study examined how patients with cancer estimate caregiver burden (CB) and the association between their underestimation of CB and their caregivers' self ratings of their quality of life (CQOLC-K; Korean version of the Caregiver Quality of Life Index-Cancer), depression and anxiety (Korean version of the Hospital Anxiety and Depression Scale). Participants consisted of 990 patient caregiver dyads recruited from a nationwide cross-sectional survey conducted in South Korea. Medical baseline data were retrieved from the hospital information systems of the participating centres. The patients with cancer who underestimated CB ranged from 18.62% (for physical CB) to 23.33% (for social CB). They had less advanced cancer, a lower income, were the caregiver's spouse, reported higher levels of family avoidance of communication about cancer, and had female caregivers. The patients' underestimation of CB was significantly related to lower CQoL and higher levels of caregiver depression and anxiety. The current study provides empirical evidence for the link between the underestimation of CB by patients with cancer and compromised caregiving experiences of cancer caregivers. Open family communication about cancer was discussed as one of several practical strategies for decreasing patients' underestimation of CB. PMID- 29333737 TI - Recent advances in veterinary radiation oncology. PMID- 29333738 TI - Antibacterial and Antifungal Activity of Poly(Lactic Acid)-Bovine Lactoferrin Nanofiber Membranes. AB - Antimicrobial materials have become relevant for local therapies preventing microbial resistance induced by systemic antibiotic treatments. This work reports the development of electrospun poly(lactic acid) (PLLA) nanofiber membranes loaded with bovine lactoferrin (bLF) up to 20 wt%. The membranes present smooth and nondefective fibers with mean diameters between 717 +/- 197 and 495 +/- 127 nm, and an overall porosity of ~80%. The hydrophobicity of the PLLA membranes is reduced by the presence of bLF. The release profile of bLF correlates with an anomalous transport model, with 17.7 +/- 3.6% being released over 7 weeks. The nanofiber mats show no cytotoxicity on human skin fibroblasts and even promote cell proliferation after short exposure periods. Furthermore, the developed membranes display antifungal activity against Aspergillus nidulans by inhibiting spore germination and mycelial growth. These results evidence the strong potential of bLF-PLLA nanofiber membranes to be used as antifungal dressings. PMID- 29333739 TI - Nickel-Based (Photo)Electrocatalysts for Hydrogen Production. AB - Hydrogen is considered a promising energy carrier for replacing traditional fossil fuels. Electrochemical or solar-driven water splitting is a green and sustainable method of producing hydrogen. To lower the overpotential and minimize energy costs, numerous reports have focused on developing noble-metal-free catalysts for hydrogen production, with special attention paid to nickel-based materials. Herein, the current state of research on the use of Ni-based materials as electrocatalysts, cocatalysts, and photoactive materials in hydrogen production is reviewed. Recent research efforts toward the development of various Ni-based (photo)electrocatalysts, their applications in hydrogen production, and the corresponding mechanisms are covered. The approaches used to improve or optimize these materials are summarized, and the key remaining challenges are discussed. PMID- 29333740 TI - Pharmacokinetics, disposition, and plasma concentrations of dimethyl sulfoxide (DMSO) in the horse following topical, oral, and intravenous administration. AB - Compartmental models were used to investigate the pharmacokinetics of intravenous (i.v.), oral (p.o.), and topical (TOP) administration of dimethyl sulfoxide (DMSO). The plasma concentration-time curve following a 15-min i.v. infusion of DMSO was described by a two-compartment model. Median and range of alpha (t1/2alpha ) and beta (t1/2beta ) half-lives were 0.029 (0.026-0.093) and 14.1 (6.6-16.4) hr, respectively. Plasma concentration-time curves of DMSO following p.o. and TOP administration were best described by one-compartment absorption and elimination models. Following the p.o. administration, median absorption (t1/2ab ) and elimination (t1/2e ) half-lives were 0.15 (0.01-0.77) and 15.5 (8.5-25.2) hr, respectively. The plasma concentrations of DMSO were 47.4-129.9 MUg/ml, occurring between 15 min and 4 hr. The fractional absorption (F) during a 24-hr period was 47.4 (22.7-98.1)%. Following TOP administrations, the median t1/2ab and t1/2e were 1.2 (0.49-2.3) and 4.5 (2.1-11.0) hr, respectively. Plasma concentrations were 1.2-8.2 MUg/ml occurring at 2-4 hr. Fractional absorption following TOP administration was 0.48 (0.315-4.4)% of the dose administered. Clearance (Cl) of DMSO following the i.v. administration was 3.2 (2.2-6.7) ml hr 1 kg-1 . The corrected clearances (ClF ) for p.o. and TOP administrations were 2.9 (1.1-5.5) and 4.5 (0.52-18.2) ml hr-1 kg-1 . PMID- 29333741 TI - P-Type Low-Molecular-Weight Hydrogelators. AB - As the use of low-molecular-weight gelators (LMWGs) as components in single and multicomponent systems for optoelectronic and solar cell applications increases, so does the need for more functional gelators. There are relatively few examples of p-type gelators that can be used in such systems. Here, the synthesis and characterization of three amino-acid-functionalized p-type gelators based on terthiophene, tetrathiafulvalene, and oligo(phenylenevinylene) are described. The cores of these molecules are already used as electron donors in optoelectronic applications. These newly designed molecules can gel water to form highly organized structures, which can be dried into thin films that show p-type behavior. PMID- 29333743 TI - Dyadic coping and marital adjustment during pregnancy: A cross-sectional study of Italian couples expecting their first child. AB - Although the transition to parenthood is currently defined as a normative event, it can be potentially stressful for the couple relationship as it may contribute to psychological distress and reduced marital satisfaction. Using the systemic transactional conceptualisation of stress and coping as a theoretical framework, we claimed that the ability of the parents-to-be to adjust to their new roles and identity is influenced by dyadic coping strategies. This study examined the effects of dyadic coping on marital adjustment in a sample of 78 primiparous couples. Women and partners completed the Dyadic Adjustment Scale and the Dyadic Coping Questionnaire during late pregnancy. Data were analysed using the Actor Partner Interdependence Model. Results revealed that both women and partners' scores on positive dyadic coping behaviours contributed to higher marital adjustment, suggesting that risks for marital dissatisfaction may exist for couples not able to implement adaptive dyadic coping strategies, or for those unsatisfied with the implemented coping behaviours. PMID- 29333744 TI - High-Performance Organic Bulk-Heterojunction Solar Cells Based on Multiple-Donor or Multiple-Acceptor Components. AB - Organic solar cells (OSCs) based on bulk heterojunction structures are promising candidates for next-generation solar cells. However, the narrow absorption bandwidth of organic semiconductors is a critical issue resulting in insufficient usage of the energy from the solar spectrum, and as a result, it hinders performance. Devices based on multiple-donor or multiple-acceptor components with complementary absorption spectra provide a solution to address this issue. OSCs based on multiple-donor or multiple-acceptor systems have achieved power conversion efficiencies over 12%. Moreover, the introduction of an additional component can further facilitate charge transfer and reduce charge recombination through cascade energy structure and optimized morphology. This progress report provides an overview of the recent progress in OSCs based on multiple-donor (polymer/polymer, polymer/dye, and polymer/small molecule) or multiple-acceptor (fullerene/fullerene, fullerene/nonfullerene, and nonfullerene/nonfullerene) components. PMID- 29333742 TI - Parvalbumin fast-spiking interneurons are selectively altered by paediatric traumatic brain injury. AB - KEY POINTS: Traumatic brain injury (TBI) in children remains a leading cause of death and disability and it remains poorly understood why children have worse outcomes and longer recover times. TBI has shown to alter cortical excitability and inhibitory drive onto excitatory neurons, yet few studies have directly examined changes to cortical interneurons. This is addressed in the present study using a clinically relevant model of severe TBI (controlled cortical impact) in interneuron cell type specific Cre-dependent mice. Mice subjected to controlled cortical impact exhibit specific loss of parvalbumin (PV) but not somatostatin immunoreactivity and cell density in the peri-injury zone. PV interneurons are primarily of a fast-spiking (FS) phenotype that persisted in the peri-injury zone but received less frequent inhibitory and stronger excitatory post-synaptic currents. The targeted loss of PV-FS interneurons appears to be distinct from previous reports in adult mice suggesting that TBI-induced pathophysiology is dependent on the age at time of impact. ABSTRACT: Paediatric traumatic brain injury (TBI) is a leading cause of death and disability in children. Traditionally, ongoing neurodevelopment and neuroplasticity have been considered to confer children with an advantage following TBI. However, recent findings indicate that the paediatric brain may be more sensitive to brain injury. Inhibitory interneurons are essential for proper cortical function and are implicated in the pathophysiology of TBI, yet few studies have directly investigated TBI-induced changes to interneurons themselves. Accordingly, in the present study, we examine how inhibitory neurons are altered following controlled cortical impact (CCI) in juvenile mice with targeted Cre-dependent fluorescence labelling of interneurons (Vgat:Cre/Ai9 and PV:Cre/Ai6). Although CCI failed to alter the number of excitatory neurons or somatostatin-expressing interneurons in the peri-injury zone, it significantly decreased the density of parvalbumin (PV) immunoreactive cells by 71%. However, PV:Cre/Ai6 mice subjected to CCI showed a lower extent of fluorescence labelled cell loss. PV interneurons are predominantly of a fast-spiking (FS) phenotype and, when recorded electrophysiologically from the peri-injury zone, exhibited intrinsic properties similar to those of control neurons. Synaptically, CCI induced a decrease in inhibitory drive onto FS interneurons combined with an increase in the strength of excitatory events. The results of the present study indicate that CCI induced both a loss of PV interneurons and an even greater loss of PV expression. This suggests caution is required when interpreting changes in PV immunoreactivity alone as direct evidence of interneuronal loss. Furthermore, in contrast to reports in adults, TBI in the paediatric brain selectively alters PV-FS interneurons, primarily resulting in a loss of interneuronal inhibition. PMID- 29333745 TI - Increased sensitivity and high specificity of indirect immunofluorescence in detecting IgG subclasses for diagnosis of bullous pemphigoid. AB - BACKGROUND: Indirect immunofluorescence (IIF) microscopy on monkey oesophagus is an important assay for the diagnosis of bullous pemphigoid (BP). Its relatively low sensitivity (60-80%) may be partly due to insufficient detection of minor IgG subclasses. AIM: To determine the operating characteristics of an IgG subclass in IIF. METHODS: We designed a retrospective, dual-centre, controlled cohort study on sera from 64 BP sera that had been rated as false negatives by traditional IIF microscopy, and assessed circulating IgG1 , IgG3 and IgG4 autoantibodies. RESULTS: The sensitivities of IIF in detecting IgG1 , IgG3 , IgG4 and all three in combination were 45.3%, 18.8%, 32.8% and 48.4%, respectively. Specificities were > 97%. CONCLUSION: Detection of IgG subclass (especially IgG1 and IgG4 ) autoantibodies by IIF on monkey oesophagus can significantly improve diagnostic performance of IIF microscopy for diagnosis of BP. PMID- 29333746 TI - Novel KIT variants for dominant white in the Australian horse population. PMID- 29333747 TI - Rapid, Regioselective Living Ring-Opening Metathesis Polymerization of Bio Derivable Asymmetric Tricyclic Oxanorbornenes. AB - The synthesis of a range of alkyl esters (methyl, n-butyl, and n-decyl) prepared via Steglich esterification of the thermodynamically controlled exo, exo Diels Alder adduct of furfuryl alcohol and maleic anhydride is reported. Subsequent ring-opening metathesis polymerization of these bio-derivable tricyclic oxanorbornene analogs delivers polymers with targeted molar mass and low molar mass dispersity. The polymerizations are rapid with complete monomer conversion achieved within 15 min. Significantly, the presence of the cyclic lactone at the bridgehead of these monomers leads to polymers with high regioregularity (>85% head-to-tail) and high stereoregularity (>75% trans). The resultant polymers display both high thermal stability and high glass transition temperatures. This new class of oxanorbornene monomer, accessed from bio-derivable furfuryl alcohol and maleic anhydride, may be further tailored to incorporate a range of functional moieties. Furthermore, the exceptional properties of the derived polymers indicate potential in a range of applications. PMID- 29333748 TI - Near-Infrared Light-Sensitive Polyvinyl Alcohol Hydrogel Photoresist for Spatiotemporal Control of Cell-Instructive 3D Microenvironments. AB - Advanced hydrogel systems that allow precise control of cells and their 3D microenvironments are needed in tissue engineering, disease modeling, and drug screening. Multiphoton lithography (MPL) allows true 3D microfabrication of complex objects, but its biological application requires a cell-compatible hydrogel resist that is sufficiently photosensitive, cell-degradable, and permissive to support 3D cell growth. Here, an extremely photosensitive cell responsive hydrogel composed of peptide-crosslinked polyvinyl alcohol (PVA) is designed to expand the biological applications of MPL. PVA hydrogels are formed rapidly by ultraviolet light within 1 min in the presence of cells, providing fully synthetic matrices that are instructive for cell-matrix remodeling, multicellular morphogenesis, and protease-mediated cell invasion. By focusing a multiphoton laser into a cell-laden PVA hydrogel, cell-instructive extracellular cues are site-specifically attached to the PVA matrix. Cell invasion is thus precisely guided in 3D with micrometer-scale spatial resolution. This robust hydrogel enables, for the first time, ultrafast MPL of cell-responsive synthetic matrices at writing speeds up to 50 mm s-1 . This approach should enable facile photochemical construction and manipulation of 3D cellular microenvironments with unprecedented flexibility and precision. PMID- 29333750 TI - Hydroperoxide Traces in Common Cyclic Ethers as Initiators for Controlled RAFT Polymerizations. AB - Herein, a reversible addition-fragmentation chain transfer (RAFT) polymerization is introduced for reactive monomers like N-acryloylpyrrolidine or N,N dimethylacrylamide working without a conventional radical initiator. As a very straightforward proof of principle, the method takes advantage of the usually inconvenient radical-generating hydroperoxide contaminations in cyclic ethers like tetrahydrofuran or 1,4-dioxane, which are very common solvents in polymer sciences. The polymerizations are surprisingly well controlled and the polymers can be extended with a second block, indicating their high livingness. "Solvent initiated" RAFT polymerizations hence prove to be a feasible access to tailored materials with minimal experimental effort and standard laboratory equipment, only requiring the following ingredients: hydroperoxide-contaminated solvent, monomer, and RAFT agent. In other respects, however, the potential coinitiating ability of the used solvent is to be considered when investigating the kinetics of RAFT polymerizations or aiming for the synthesis of high-livingness polymers, e.g., multiblock copolymers. PMID- 29333749 TI - Tetralogy of Fallot with left ventricular clot. PMID- 29333751 TI - Identification of the Minimal Glycotope of Streptococcus pneumoniae 7F Capsular Polysaccharide using Synthetic Oligosaccharides. AB - Streptococcus pneumoniae causes life-threatening diseases including meningitis, pneumonia and sepsis. Existing glycoconjugate vaccines based on purified capsular polysaccharides are widely used and help to prevent millions of deaths every year. Herein, the total syntheses of oligosaccharides resembling portions of the S. pneumoniae serotype 7F (ST7F) capsular polysaccharide repeating unit are reported. To define minimal glycan epitopes, glycan microarrays containing the synthetic oligosaccharides were used to screen human reference serum and revealed that both side chains of the ST7F play a key role in antigen recognition. The identification of protective minimal epitopes is vital to design efficient semi- and fully-synthetic glycoconjugate vaccines. PMID- 29333752 TI - Workplace design for the Australian residential aged care workforce. AB - OBJECTIVES: This research explored residential aged care (RAC) workplace design features that influence how RAC staff feel valued, productive, safe, like they belong and connected. A secondary aim was to validate emerging themes about RAC design features with stakeholders. METHODS: A multistage qualitative study was conducted in one RAC facility with 100 residents in outer metropolitan Melbourne: (i) photo-elicitation - photographs were used to prompt discussions with RAC staff; (ii) individual interviews with RAC directors; and (iii) validity testing with the advisory committee occurred. RESULTS: Key workplace design features that influenced how RAC staff feel valued, productive, safe, like they belong and connected included the following: (i) home-like environment; (ii) access to outdoor spaces; (iii) quality indoor environment; and (iv) access to safe, open and comfortable workplaces. CONCLUSIONS: Key workplace design features that matter to RAC staff in a 'shared workspace' exist. Increasing demands upon RAC requires evidence-based workplace design policy and evaluation approaches that support RAC staff to work in RAC shared workspaces. PMID- 29333753 TI - Comparative performance of different scale-down simulators of substrate gradients in Penicillium chrysogenum cultures: the need of a biological systems response analysis. AB - In a 54 m3 large-scale penicillin fermentor, the cells experience substrate gradient cycles at the timescales of global mixing time about 20-40 s. Here, we used an intermittent feeding regime (IFR) and a two-compartment reactor (TCR) to mimic these substrate gradients at laboratory-scale continuous cultures. The IFR was applied to simulate substrate dynamics experienced by the cells at full scale at timescales of tens of seconds to minutes (30 s, 3 min and 6 min), while the TCR was designed to simulate substrate gradients at an applied mean residence time (tauc) of 6 min. A biological systems analysis of the response of an industrial high-yielding P. chrysogenum strain has been performed in these continuous cultures. Compared to an undisturbed continuous feeding regime in a single reactor, the penicillin productivity (qPenG ) was reduced in all scale down simulators. The dynamic metabolomics data indicated that in the IFRs, the cells accumulated high levels of the central metabolites during the feast phase to actively cope with external substrate deprivation during the famine phase. In contrast, in the TCR system, the storage pool (e.g. mannitol and arabitol) constituted a large contribution of carbon supply in the non-feed compartment. Further, transcript analysis revealed that all scale-down simulators gave different expression levels of the glucose/hexose transporter genes and the penicillin gene clusters. The results showed that qPenG did not correlate well with exposure to the substrate regimes (excess, limitation and starvation), but there was a clear inverse relation between qPenG and the intracellular glucose level. PMID- 29333755 TI - Writing: be mindful of context. PMID- 29333754 TI - A guide to analysis and reconstruction of serial block face scanning electron microscopy data. AB - Serial block face scanning electron microscopy (SBF-SEM) is a relatively new technique that allows the acquisition of serially sectioned, imaged and digitally aligned ultrastructural data. There is a wealth of information that can be obtained from the resulting image stacks but this presents a new challenge for researchers - how to computationally analyse and make best use of the large datasets produced. One approach is to reconstruct structures and features of interest in 3D. However, the software programmes can appear overwhelming, time consuming and not intuitive for those new to image analysis. There are a limited number of published articles that provide sufficient detail on how to do this type of reconstruction. Therefore, the aim of this paper is to provide a detailed step-by-step protocol, accompanied by tutorial videos, for several types of analysis programmes that can be used on raw SBF-SEM data, although there are more options available than can be covered here. To showcase the programmes, datasets of skeletal muscle from foetal and adult guinea pigs are initially used with procedures subsequently applied to guinea pig cardiac tissue and locust brain. The tissue is processed using the heavy metal protocol developed specifically for SBF-SEM. Trimmed resin blocks are placed into a Zeiss Sigma SEM incorporating the Gatan 3View and the resulting image stacks are analysed in three different programmes, Fiji, Amira and MIB, using a range of tools available for segmentation. The results from the image analysis comparison show that the analysis tools are often more suited to a particular type of structure. For example, larger structures, such as nuclei and cells, can be segmented using interpolation, which speeds up analysis; single contrast structures, such as the nucleolus, can be segmented using the contrast-based thresholding tools. Knowing the nature of the tissue and its specific structures (complexity, contrast, if there are distinct membranes, size) will help to determine the best method for reconstruction and thus maximize informative output from valuable tissue. PMID- 29333756 TI - Medical students should know their limitations. PMID- 29333757 TI - Optimising workplace-based assessment. PMID- 29333758 TI - Benefit of team over individual near-peer teachers. PMID- 29333759 TI - Responding to student preferences: a balancing act. PMID- 29333760 TI - Supporting medical students with disabilities. PMID- 29333761 TI - Simulated patients uncovered. PMID- 29333762 TI - Pemphigus herpetiformis with autoantibodies to desmocollins 1, 2 and 3. PMID- 29333763 TI - Polymer-Passivated Inorganic Cesium Lead Mixed-Halide Perovskites for Stable and Efficient Solar Cells with High Open-Circuit Voltage over 1.3 V. AB - Cesium-based trihalide perovskites have been demonstrated as promising light absorbers for photovoltaic applications due to their superb composition stability. However, the large energy losses (Eloss ) observed in inorganic perovskite solar cells has become a major hindrance impairing the ultimate efficiency. Here, an effective and reproducible method of modifying the interface between a CsPbI2 Br absorber and polythiophene hole-acceptor to minimize the Eloss is reported. It is demonstrated that polythiophene, deposited on the top of CsPbI2 Br, can significantly reduce electron-hole recombination within the perovskite, which is due to the electronic passivation of surface defect states. In addition, the interfacial properties are improved by a simple annealing process, leading to significantly reduced energy disorder in polythiophene and enhanced hole-injection into the hole-acceptor. Consequently, one of the highest power conversion efficiency (PCE) of 12.02% from a reverse scan in inorganic mixed-halide perovskite solar cells is obtained. Modifying the perovskite films with annealing polythiophene enables an open-circuit voltage (VOC ) of up to 1.32 V and Eloss of down to 0.5 eV, which both are the optimal values reported among cesium-lead mixed-halide perovskite solar cells to date. This method provides a new route to further improve the efficiency of perovskite solar cells by minimizing the Eloss . PMID- 29333765 TI - Ultrathin FeOOH Nanolayers with Abundant Oxygen Vacancies on BiVO4 Photoanodes for Efficient Water Oxidation. AB - Photoelectrochemical (PEC) water splitting is a promising method for storing solar energy in the form of hydrogen fuel, but it is greatly hindered by the sluggish kinetics of the oxygen evolution reaction (OER). Herein, a facile solution impregnation method is developed for growing ultrathin (2 nm) highly crystalline beta-FeOOH nanolayers with abundant oxygen vacancies on BiVO4 photoanodes. These exhibited a remarkable photocurrent density of 4.3 mA cm-2 at 1.23 V (vs. reversible hydrogen electrode (RHE), AM 1.5 G), which is approximately two times higher than that of amorphous FeOOH fabricated by electrodeposition. Systematic studies reveal that the excellent PEC activity should be attributed to their ultrathin crystalline structure and abundant oxygen vacancies, which could effectively facilitate the hole transport/trapping and provide more active sites for water oxidation. PMID- 29333764 TI - Education is the strongest socio-economic predictor of smoking in pregnancy. AB - AIMS: To investigate socio-economic disparities in smoking in pregnancy (SIP) by the mother's education, occupational class and current economic conditions. DESIGN: Cross-sectional analysis with linked survey and register data. SETTING: South-western Finland. PARTICIPANTS: A total of 2667 pregnant women [70% of the original sample (n = 3808)] from FinnBrain, a prospective pregnancy cohort study. MEASUREMENTS: The outcome was smoking during the first pregnancy trimester, measured from the Finnish Medical Birth Register. Education and occupational class were linked from population registers. Income support recipiency and subjective economic wellbeing were questionnaire-based measures of current economic conditions. These were adjusted for age, partnership status, residential area type, parental separation, parity, childhood socio-economic background, childhood adversities (the Trauma and Distressing Events During Childhood scale) and antenatal stress (Edinburgh Postnatal Depression Scale). Logistic regressions and attributable fractions (AF) were estimated. FINDINGS: Mother's education was the strongest socio-economic predictor of SIP. Compared with university education, adjusted odds ratios (aORs) of SIP were: 2.2 [95% confidence interval (CI) = 1.2-3.9; P = 0.011] for tertiary vocational education, 4.4 (95% CI = 2.1 9.0; P < 0.001) for combined general and vocational secondary education, 2.9 (95% CI = 1.4-6.1; P = 0.006) for general secondary education, 9.5 (95% CI 5.0-18.2; P < 0.001) for vocational secondary education and 14.4 (95% CI = 6.3-33.0; P < 0.001) for compulsory schooling. The total AF of education was 0.5. Adjusted for the other variables, occupational class and subjective economic wellbeing did not predict SIP. Income support recipiency was associated positively with SIP (aOR = 1.8; 95% CI = 1.1-3.1; P = 0.022). Antenatal stress predicted SIP (aOR = 2.0; 95% CI = 1.4-2.8; P < 0.001), but did not attenuate its socio-economic disparities. CONCLUSIONS: In Finland, socio-economic disparities in smoking in pregnancy are attributable primarily to differences in the mother's educational level (low versus high) and orientation (vocational versus general). PMID- 29333767 TI - [Clinical applications of periodontal gingival surgery.I: autogenous grafts]. AB - The field of periodontics has become increasingly discussed and advanced in recent decades. The techniques of periodontal soft tissue grafts are among these advancements. The techniques have been used more and more clinically not only in periodontics, but also in the areas of dental implantology, aesthetics, and orthodontics. In this article, we discuss the clinical indications and the advantages and disadvantages of several autogenous tissue grafts (e.g. pedical grafts, free gingival graft, and subepithelial connective tissue graft). These techniques have made root coverage and the rebuilding of attached gingival possible; therefore, it is necessary for all dentists to understand the applications of periodontal soft tissue grafts. PMID- 29333766 TI - [Relationship between different X-ray appearances and oral clinical manifestations of cemental dysplasia]. AB - Cemental dysplasia is a non-neoplastic lesion and features different X-ray appearances that easily confuse dentists. This condition is often observed in conventional dental films or occasionally on panoramic radiographs. Cemental dysplasia is easily misdiagnosed as chronic periapical periodontitis, osteomyelitis, and tumor. In this paper, clinical mani-festations, imaging diagnosis, and the correlation between these variables are analyzed to achieve correct diagnosis. PMID- 29333768 TI - [Effects of geranylgeranyltransferase I gene silencing by RNA interference on the migration and invasion of tongue carcinoma]. AB - OBJECTIVE: RNA interference was used to silence geranylgeranyltransferase I(GGTase-I) in vitro and to study the effect of GGTase-I on the migration and invasion of tongue squamous cancer cells. METHODS: Three small interfering RNAs (siRNA) were designed according to the GGTase-I sequence by Genebank and were transfected into tongue squamous cancer cells Cal-27 to knock down GGTase-I expression. The tested cells were divided into three groups, as follows: the RNA interfered groups (GGTase-I siRNA1, GGTase-I siRNA 2, GGTase-I siRNA 3), a negative control group (disrupted by random sequence NC-siRNA), and a blank control group. GGTase-I and RhoA gene expressions were examined by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot. The optimum interference group was screened by qRT-PCR and Western blot and was assigned as the experimental group. Matrix metalloproteinase (MMP)-2 and MMP-9 protein expressions were examined by Western blot. GTP-RhoA expression of protein was examined by GST-pull down. The migration and invasion abilities were analyzed by wound healing assay and Transwell motility assay. RESULTS: GGTase-I mRNA and protein expression in Cal-27 decreased significantly after transfection of GGTase I siRNA (P<0.05). No significant difference of RhoA gene expression was detected. MMP-2, MMP-9, and GTP-RhoA protein expressions decreased significantly (P<0.05). The migration and invasion abilities were inhibited (P<0.05). CONCLUSIONS: To inhibit GGTase-I expression, the migration and invasion abilities of tongue squamous cancer cells should also be inhibited. Further studies on GGTase-I may provide novel effective molecular targets for tongue squamous cancer cells. PMID- 29333769 TI - [Significance of the expression of proliferating cell nuclear antigen and P53 in the regeneration process of an atrophic parotid gland]. AB - OBJECTIVE: This research aims to further explore the expression and significance of proliferating cell nuclear antigen (PCNA) and P53 in regenerating rat atrophy parotid gland from the gene and protein levels. METHODS: One hundred and two Wistar rats were randomly divided into experimental and control groups; the former group's duct was ligated and then released respectively in 7 (Group A) and 14 days (Group B). Fresh parotid specimens were obtained at 0, 3, 5, 7, 10, 14, 21, and 28 days after being released. Hematoxylin-eosin staining method was used to observe the morphological changes of the parotid gland. The significance of P53 and PCNA in two groups was resolved by real-time fluorescence quantitative polymerase china reaction and Western blot. RESULTS: Acinar cells aoptosis and duct cells proliferation occurred when the occlusion of the parotid duct was reversed on days 7 and 14. The expression of P53 was higher than that of PCNA, and they reached the peak at the third and fifth days after groups A and B regenerated, respectively. This finding was significantly different compared with the control (P<0.01). P53 and PCNA contents decreased gradually; acinar and duct gradually returned to normal morphology; PCNA and P53 contents gradually close to the normal control group. CONCLUSIONS: After ligating the parotid duct, P53 was highly expressed, and induced parotid gland atrophy. Mean-while, PCNA was highly expressed, which then decreased inducing gland recovery. PMID- 29333770 TI - [Construction of srtA-deletion mutant of Streptococcus mutans by an in-frame deletion system]. AB - OBJECTIVE: To construct srtA-gene deletion mutant of Streptococcus mutans (S. mutans) UA159 with IFDC2 cassette through overlapping polymerase chain reaction (PCR) and allelic homologous recombination. METHODS: First, the upstream and downstream fragments surrounding the srtA and IFDC2 cassette were PCR amplified and ligated through overlapping PCR. The resulting amplicon was transformed into UA159, and positive transformants were selected on BHI plates containing erythromycin. Second, upstream and downstream fragments of srtA with overlap regions were generated by PCR and were overlapped to create upDelta-down amplicon. Then, the upDelta-down amplicon was transformed into the aforementioned positive transformants and selected on BHI plates containing p-Cl-Phe. RESULTS: The PCR analysis and DNA sequencing results indicated that the coding region of the srtA was completely deleted, and the upstream and downstream regions flanking the srtA were ligated seamlessly. CONCLUSIONS: The markerless srtA-deletion mutant of S. mutans was constructed successfully, which laid a foundation for further study of its biological function and influence on the biofilm formation of S. mutans. PMID- 29333771 TI - [Effect of hydrofluoric acid concentration on the surface morphology and bonding effectiveness of lithium disilicate glass ceramics to resin composites]. AB - OBJECTIVE: This study aimed at determining the influence of hydrofluoric acid (HF) in varied concentrations on the surface morphology of lithium disilicate glass ceramics and bond durability between resin composites and post-treated lithium disilicate glass ceramics. METHODS: After being sintered, ground, and washed, 72 as-prepared specimens of lithium disilicate glass ceramics with dimensions of 11 mm*13 mm*2 mm were randomly divided into three groups. Each group was treated with acid solution [32% phosphoric acid (PA) or 4% or 9.5% HF] for 20 s. Then, four acidified specimens from each group were randomly selected. One of the specimens was used to observe the surface morphology using scanning electron microscopy, and the others were used to observe the surface roughness using a surface roughness meter (including Ra, Rz, and Rmax). After treatment with different acid solutions in each group, 20 samples were further treated with silane coupling agent/resin adhesive/resin cement (Monobond S/Multilink Primer A&B/Multilink N), followed by bonding to a composite resin column (FiltekTM Z350) with a diameter of 3 mm. A total of 20 specimens in each group were randomly divided into two subgroups, which were used for measuring the microshear bond strength, with one of them subjected to cool-thermal cycle for 20 000 times. RESULTS: The surface roughness (Ra, Rz, and Rmax) of lithium disilicate glass ceramics treated with 4% or 9.5% HF was significantly higher than that of the ceramic treated with PA (P<0.05). The lithium disilicate glass ceramics treated with 9.5% HF also demonstrated better surface roughness (Rz and Rmax) than that of the ceramics treated with 4% HF. Cool-thermal cycle treatment reduced the bond strength of lithium disilicate glass ceramics in all groups (P<0.05). After cool thermal cycle, the lithium disilicate glass ceramics treated with HF had higher bond strength than that of the ceramics treated with PA. The lithium disilicate glass ceramics treated with 4% HF had higher bond strength than that of the ceramics treated with 9.5% HF (P<0.05). During cool-thermal cycle, the lithium disilicate glass ceramics treated with 4% HF demonstrated higher reduction in bond strength than that of the samples treated with 9.5% HF (P<0.05). CONCLUSIONS: The concentration of HF significantly affected the surface morphology of lithium disilicate glass ceramics and the bond durability between resin composites and post-treated lithium disilicate glass ceramics. The bond strength between resin composites and post-treated lithium disilicate glass ceramic was more efficiently maintained by treatment with 9.5% HF. PMID- 29333772 TI - [Effect of different surface processes on the bond strength between zirconia framework and veneering ceramic]. AB - OBJECTIVE: To compare the effect of different surface processes on bond strength and microscopic structure using a scanning electron microscope (SEM) and an energy distribution spectrum (EDS) at the bonding interface between zirconia framework and veneering ceramic. METHODS: WIELAND zirconia core material was cut into 33 rectangular specimens and fired on into rectangular specimens (10 mm*5 mm*5 mm). The specimens were randomly divided into three groups (n=?11). The sandblasting group was sandblasted before firing. The sandblasting and liner coverage group was sandblasted before firing and then sintered with liner coverage after firing. The control group was not processed. All the veneering ceramics (5 mm*?5 mm*5 mm) were fired on into the zirconia substructure by slip casting technique. One bilayered specimen in each group was prepared for SEM and EDS to examine the bonding conditions. The other specimens were measured for shear force using an electronic universal dynamometer. The data obtained were analyzed by using the statistical software SPSS 17.0. RESULTS: The values of the shear bond strength test were (13.80+/-1.54) MPa for the control group, (18.06+/ 0.59) MPa for the sandblasting group, and (21.04+/-1.23) MPa for the sandblasting and liner coverage group. Significant differences existed among the three groups (P<0.01). CONCLUSIONS: Abrasion before firing significantly increases the shear bond strength of zirconia to veneering porcelain. The use of porcelain combined with liner increases the shear bond strength. PMID- 29333773 TI - [Influence of positional relationship between the long axis of the mandibular anterior teeth and the alveolar bone on the treatment design of dental implants]. AB - OBJECTIVE: This study aimed at investigating and measuring the positional relationship between the long axis of the mandibular anterior teeth and the alveolar bone using cone beam computed tomography (CBCT) to provide reference data for implant treatment. METHODS: From the CBCT image database, 150 cases of radiographic data were selected according to the inclusion criteria and then were divided into six groups: males' mandibular central incisors, males' mandibular lateral incisors, males' mandibular canines, females' mandibular central incisors, females' mandibular lateral incisors, and females' mandibular canines. The angle (beta) formed by the long axis of the mandibular anterior teeth and the corresponding alveolar bone was measured and recorded. Based on the long axis of alveolar bone, if the teeth incline to the lingual side, the value of the angle (beta) was positive; otherwise, the value was negative. The resultant data were analyzed by SPSS 19.0. RESULTS: The beta of the mandibular central incisors presented a mean value of 4.77 degrees (range: -8.17 degrees -16.10 degrees ) for male subjects and 5.38 degrees (range: -5.63 degrees -12.93 degrees ) for female subjects. The beta of the mandibular lateral incisors exhibited a mean value of 6.12 degrees (range: -2.87 degrees -?17.57 degrees ) for male subjects and 5.81 degrees (range: -7.70 degrees -15.70 degrees ) for female subjects. Finally, the beta of the mandibular canines presented a mean value of 5.01 degrees (range: -8.13 degrees -17.67 degrees ) for male subjects and 6.21 degrees (range: -7.70 degrees -17.87 degrees ) for female subjects. The percentages of the beta between -10 degrees and 10 degrees of males' mandibular incisors, mandibular lateral incisors, and mandibular canines were 87.34%, 80.67%, and 88.00%, respectively and those of females were 90.67%, 82.66%, and 82.66%, respectively. Whether male or female, the percentages of the beta between -10 degrees and 10 degrees of the mandibular anterior teeth were more than 80%. The beta that inclined to the lingual was not more than 20 degrees and to the labial did not exceed 10 degrees . CONCLUSIONS: The long axis of the mandibular anterior teeth was almost consistent with the long axis of the alveolar bone. Therefore, the positional relationship could be referred to make reasonable implants treatment plan. PMID- 29333774 TI - [A cone beam computed tomography study on the anatomical position of accessory mandibular foramina in Jiangxi adults]. AB - OBJECTIVE: This study used cone beam computed tomography (CBCT) to access the distribution and position of accessory mandibular foramina in the mandibular body of Jiangxi adults, and some safety rules of operation for clinics were provided. METHODS: Two hundred CBCT image subjects of Jiangxi adults were selected, which were divided into 4 groups by age with the same sex ratio. The number and position of accessory mandibular foramina in mandibular anterior teeth, premolars and molars region were described and the relationship between accessory mandibular foramina incidence and factors of age, gender and lateral were analyzed. RESULTS: A total of 1 123 accessory mandibular foramina were found, with a mean of 5.62+/-2.10 per person. The accessory mandibular foramina incidence decreased from the mesial region to the distal, and the lingual was higher than the buccal. There was no significant difference in the number of accessory mandibular foramina in male and female (P=0.195). However, the number of accessory mandibular foramina was negatively correlated with age (r(s)= 0.301). Three highest frequency regions of accessory mandibular foramina were mandibular symphysis area (98.0%), lingual alveolar area of lower medial (88.0%) and lateral incisors and inferior area of lingual premolar (55.0%). CONCLUSIONS: Accessory mandibular foramina are widely presented in the body of everyone's mandible, addition attention should be paid to avoid the complications causing by the damage of canal contents in the clinics. PMID- 29333775 TI - [Effect of dexmedetomidine on emergence agitation after general anesthesia in children undergoing odontotherapy in day-surgery operating room]. AB - OBJECTIVE: To study the effectiveness of dexmedetomidine used for general anesthesia maintenance in children undergoing odontotherapy in day-surgery operating room in reducing the incidence of emergence agitation (EA). METHODS: Eighty children undergoing odontotherapy and under general anesthesia in day surgery operating room were randomized into two groups, group A (n=40) and group B (n=40). Each patient in group A was administered with a bolus dose of dexmedetomidine (1.0 MUg.kg-1, saline diluted to 10 mL) pump-infused after intubation and a maintenance dose of 0.1-0.4 mL.(kg.h)-1 followed-up until 45 min before the end of operation. Each patient in group B was administered with a bolus dose of normal saline 10 mL pump-infused after intubation and maintenance dose of 0.1-0.4 mL.(kg.h)-1 followed-up until 45 min before the end of operation. Gender, age, weight, physical status according to the American Society of Anesthesiologists, perioperative heart rate (HR), mean arterial pressure (MAP), pulse oxygen saturation (SpO2), sufentanil dosage, duration of surgery, time of extubation, time of regaining consciousness, and time to reach modified Aldrete's score>=12 were recorded. Behavior in postanesthesia care unit was rated on the four-point agitation scale. RESULTS: Compared with group B, decreases were observed in HR and MAP at the beginning of operation, in 10 and 30 min, 1 and 2 h after the beginning of operation, and after extubation of group A (P<0.05). Sufentanil dosage and incidence of EA during recovery of group A were also lower than those of group B (P<0.05). Time to regain consciousness and time to reach modified Aldrete's score>=12 of group A were longer than those of group B (P<0.05). No statistical difference was observed between other indexes of the two groups. CONCLUSIONS: As an anesthetic used for general anesthesia maintenance in children undergoing odontotherapy in day-surgery operating room, dexmedetomidine results in low incidence of EA during recovery and more stable vital signs. PMID- 29333776 TI - [Clinical and microbiologic follow-up evaluations after non-surgical periodontal treatment with Nd: YAG laser and scaling and root planning]. AB - OBJECTIVE: Our research aimed to detect the efficacy of non-surgical periodontal treatment with Nd: YAG laser and scaling and root planning (SRP) for chronic periodontitis. METHODS: We recruited chronic periodontitis patients who have more than four teeth with clinical pocket depth of 4-8 mm. These teeth were distributed in four different zones within the oral cavity. Moreover, the teeth were single root teeth and not adjacent to each other. The subordinated teeth were randomized into four groups, as follows: no treatment (C group), simple SRP (SRP group), Nd: YAG laser after SRP treatment (SRP+L group), and SRP after Nd: YAG laser treatment (L+SRP group). The four experimental observation points were as follows: before treatment (baseline) and 1 week, 1 month, and 3 months after treatment. We measured clinical indicators and collected subgingival deposits in the four time points to analyze changes of red complex in periodontitis. RESULTS: The clinical indicators were better in all treatment groups than in the control group. Comparison among treatment groups indicated that the value of bleeding on probing, periodontal probing depth, and clinical attachment loss showed no difference. However, the value of plaque index in SRP+L and L+SRP presented a significant reduction at 3 months after treatment. The percentages of Porphyromonas gingivalis, Tannerella forsythia, and Treponema denticola in all treatment groups decreased after clinical treatment, and differences were observed among the treatment groups at different time points. CONCLUSIONS: Non surgical periodontal treatment with SRP and Nd: YAG laser is not more effective than SRP monotherapy. The sequence of laser treatment and SRP has no significant effect on the treatment. However, SRP with Nd: YAG laser was beneficial for plaque control. Non-surgical periodontal treatment with Nd: YAG laser may be used as an alternative to reduce and control the proliferation of microorganisms in persistent periodontitis, but it still needs further verification. PMID- 29333777 TI - [Retrospective analysis of adverse drug reactions in stomatology hospital from 2014 to 2016]. AB - OBJECTIVE: This study aims to investigate the characteristics and general rules of adverse drug reactions (ADR) in a 3A-grade stomatology hospital for safe and rational drug use in clinical stomatology. METHODS: We retrospectively analyzed 52 ADR cases (1?1.36, males?females) reported in the West China Hospital of Stomatology of Sichuan University from 2014 to 2016 in terms of gender and age distributions, drug categories, and clinical manifestations. RESULTS: Eight kinds of drugs and antibiotics were predominately used [24 cases, 46.15% (24/52)], followed by nutrition drugs and antitumor drugs. Cephalosporin was the leading antibiotic drug associated with ADR [20 cases, 83.33% (20/24)]. Intravenous infusion was the most common route of drug administration [49 cases, 94.23% (49/52)]. The most common manifestations of the ADR were damages of the skin and its appendages and lesions of the digestive and nervous systems. CONCLUSIONS: Strengthening the ADR monitoring system and further management should be implemented to alleviate ADR in stomatology hospitals. PMID- 29333778 TI - [Remineralization effect of casein phosphopeptide-amorphous calcium phosphate for enamel demineralization: a system review]. AB - OBJECTIVE: This study aims to assess the remineralization effect of casein phosphopeptide (CPP)-amorphous calcium phosphate (ACP) on enamel demineralization by performing system review of randomized controlled trials (RCT) involving the treatment of enamel demineralization with CPP-ACP. METHODS: The study was developed based on the ?Cochrane handbook for systematic reviews of interventions (Version 5.1.0) and included the following: search strategy, selection criteria, data extraction, and risk of bias assessment. We searched electronic databases such as PubMed, Embase, Cochrane Library, CNKI, Wanfang and VIP up to September 2016. RCT of treating enamel demineralization with CPP-ACP were included. Data extraction and domain based risk of bias assessment were independently performed by two reviewers. RESULTS: Twelve RCTs were included. Because of the difference of experimental design and evaluation standards, the quantitative analysis can not be carried out. CONCLUSIONS: There is no strong evidence that CPP-ACP is superior to conventional fluoride formulations in enamel remineralization. However, due to the limitations of sample size, follow-up time and study design, more high quality and large-sample RCT are needed to further verify the evidence. PMID- 29333779 TI - [Decalcified freeze-dried bone allograft combined with rich platelet derivatives for the treatment of human periodontal intrabony defects: a Meta-analysis]. AB - OBJECTIVE: This review aims to systematically evaluate the effect of decalcified freeze-dried bone allograft (DFDBA) combined with rich platelet derivatives on the treatment of human periodontal intrabony defects. METHODS: A search in PubMed, Web of Science, Embase, Cochrane Library, CNKI, and other electronic databases was conducted to identify randomized controlled trials (RCT) of the use of DFDBA combined with rich platelet derivatives in the treatment of human periodontal intrabony defects, performed before May 2016. The quality of the RCTs was assessed. RevMan 5.3 software was applied for Meta-analysis. RESULTS: A total of nine RCTs were included. A total of 194 patients and 303 defects were involved. Short-term (6 months) and long-term (12 to 18 months) groups were included. Meta-analysis results revealed that DFDBA combined with rich platelet derivatives was superior to DFDBA or rich platelet derivatives alone for probing depth reduction in the short-term [MD=0.75 mm, 95% confidence intervals (CI) (0.31 mm, 1.20 mm), P=0.001 0] and longterm groups [MD=0.87 mm, 95%CI (0.02 mm, 1.72 mm), P=0.04], clinical attachment level gain in the short-term [MD=?0.65 mm, 95%CI (0.08 mm, 1.22 mm), P=0.03] and long-term groups [MD=1.31 mm, 95%CI (0.60 mm, 2.01 mm), P<0.000 3], gingival recession reduction in the long-term group [MD=-0.58 mm, 95%CI (-0.78 mm, -0.38mm), P<0.000 01], bone fill gain in the short term [MD=0.52 mm, 95%CI (0.03 mm, 1.00 mm), P=0.04] and long-term groups [MD=1.26 mm, 95%CI (0.65 mm, 1.86 mm), P<0.000 1]. CONCLUSIONS: DFDBA combined with platelet rich derivatives is probably effective in the treatment of human periodontal intrabony defects. It is probably superior to DFDBA or platelet rich derivatives alone. Considering the limitation of the included studies, high quality and large-sample RCTs are required to evaluate the effect. PMID- 29333780 TI - [Progress in exogenous factors affecting the growth and remodeling of condylar process]. AB - Condyle is a critical growth region of the mandible where mandible by endochondral ossification occurs. Condylar cartilage belongs to the secondary cartilage, which is not only affected by genetic factors but also by stress, drug intake, and other local factors. To promote the growth of the mandible, various exogenous and local factors were used to alter the biological environment of the condylar cartilage to stimulate endochondral ossification. This article reviews studies on the influence of exogenous factors on condylar growth and reconstruction. This literature review will provide a reference point for the treatment of patients with mandibular retraction. PMID- 29333781 TI - [Research progress on the relationship between triggering receptor expressed on myeloid cells 1 and 2 and malignant tumors]. AB - Increasing scientific evidence supports the positive relationship between inflammation and cancer development. The immune response initiated by pattern recognition receptors is critical to triggering of tumor-associated inflammation. Triggering receptor expressed on myeloid cells (TREM) is an immunoglobulin of the super transmembrane glycoprotein family, which is mainly expressed on select groups of myeloid cells. The most important members of TREM comprise TREM-1 and TREM-2. Activation of TREM-1 and TREM-2 signaling is initiated upon binding of their ligands. Subsequently, cross-linking reactions of downstream effectors occur, resulting in inflammation regulation. Recently, the connection between TREM and malignant tumors has been widely noticed and studied. This review summarizes studies of association between TREM-1, TREM-2, and malignant tumors in the medical field to provide new ideas for study on the correlation between periodontitis and oral cavity cancer. PMID- 29333782 TI - [Research advances on the molecular mechanism of autophagy regulated by Porphyromonas gingivalis]. AB - Autophagy is an intracellular conservative degradation pathway. This event has been considered as a key step in host defense against bacterial infection. However, Porphyromonas gingivalis, as one of the evidence-sufficient periodontal pathogens, can utilize self-induced autophagy to achieve persistent intracellular survival and proliferation, which enable this organism to escape from host immune surveillance. This review focuses on molecular mechanism of P. gingivalis internalization and autophagy to illuminate its pathogenesis and to further explore the relationship between P. gingivalis and systemic diseases. PMID- 29333783 TI - [Application of preoperative vascular localization techniques for perforator flaps]. AB - With the development of microvascular technology, perforator flaps have gradually become a good alternative for reconstruction of tissue defects. However, the major limitations of perforator flaps include uncertainty in predicting anatomical location of perforators and high variability in perforator size and course, which require preoperative localization techniques. Recently, as one of the preoperative localization techniques, computed tomography angiography was used to determine the number, size, course, and exact emerging point of perforator flaps. Clinicians can reduce surgical complications and shorten operative time by using computed tomography angiography. However, only several studies reported clinical applications of computed tomography angiography. This article reviews characteristics, classification, and preoperative location techniques for perforator flaps and its problems. PMID- 29333784 TI - [Ancient human jaw osteomyelitis in Chinese Yangshao period: a case report]. AB - This article reported jaw osteomyelitis in ancient human bone specimens, helping us to understand the emergence of ancient human jaw osteomyelitis and other oral health conditions. PMID- 29333785 TI - [Decoronation management of the replacement resorption after delayed replantation of avulsed teeth-case report with 4-year follow-up]. AB - Replacement resorption is the most frequent complication after delayed replantation of avulsed teeth. The resorption can interfere with the development of the alveolar ridge and lead to tilt of the adjacent teeth in growing patients. However, there is no means of arresting or reversing the process. Recently decoronation is recommended by International Assocaition of Dental Traumatology as the optimal choice to manage it. This paper demonstrates the procedure and effectiveness of the decoronation by literature review and a case report with 4 year follow-up. PMID- 29333801 TI - Efficacy of the Regent Suit-based rehabilitation on gait EMG patterns in hemiparetic subjects: a pilot study. AB - BACKGROUND: The recovery of the functional limb mobility of patients with cerebral damages can take great benefit of the role offered by proprioceptive rehabilitation. Recently have been developed a special Regent Suit (RS) for rehabilitative applications. Actually, there are preliminary studies which describes the effects of RS on gait recovery of stroke patients in acute stage, but none in chronic stage. Moreover, it is known that motor recovery does not always reflect improvements of the muscle activity and coactivity. AIM: To investigate the effects of proprioceptive stimulation induced by the Regent Suit (RS) on the EMG patterns during gait in post-stroke chronic patients. DESIGN: Randomized controlled trial. SETTING: S. Maugeri Foundation, Telese Terme (BN), Italy. POPULATION: Patients have been randomly assigned into two equal groups of 20 patients: experimental group and traditional group. Further, a control group of 20 healthy subjects have been enrolled. METHODS: The traditional group attended a rehabilitation program composed by neuro-motor exercises without the RS, the experimental group performed the same rehabilitation program while wearing the RS. The NIH Stroke Scale (NIHSS), the Barthel Index (BI), the Functional Independent Measure (FIM) and the Berg Balance Scale (BBS) have been evaluated. EMG analysis has been performed considering the muscle activation timing over the gait of the soleus, tibialis anterior, semitendinosus and vastus lateralis muscles by decomposing the EMG signals into Gaussian pulses. Then, the symmetry of muscle activation and the muscle synergy patterns over the gait cycle have been assessed. RESULTS: The proprioceptive stimulation of the RS-based treatment induces higher and remarkable restoration of the normal muscle activation timing, also increasing the muscle symmetry and reducing the pathological muscle coactivation on both affected and non-affected sides. CONCLUSIONS: These results suggest confirm that a RS-based treatment is more effective than usual care in improving the EMG patterns during locomotion and daily living activities in chronic post-stroke subjects. CLINICAL REHABILITATION IMPACT: The proprioceptive rehabilitation Regent Suit based has an impact on motor function in stroke patients during gait. PMID- 29333803 TI - Pediatric journals of the Southern Cone. Similarities and differences. PMID- 29333802 TI - An upgraded model of teaching Physical and Rehabilitation Medicine: the vertical education approach of Split University, Croatia. PMID- 29333804 TI - Editors of biomedical journals and the disclosure of their own conflicts of interest. PMID- 29333805 TI - Bronchodilators in bronchiolitis: Yes or no? PMID- 29333806 TI - ASQ-3: Validation of the Ages and Stages Questionnaire for the detection of neurodevelopmental disorders in Argentine children. AB - INTRODUCTION: The systematic assessment of child development in the first years of life is an essential component of pediatric health checkups. The Ages and Stages Questionnaire, third edition (ASQ-3) is the most validated scale, and has been recommended by the UNICEF to verify if children have a normal neurological development. It is a monitoring instrument to assess the main developmental areas, including communication, gross motor, fine motor, personal-social, and problem solving skills, and to compare the local population to the international development standards. OBJECTIVE: To validate the ASQ-3 in a pediatric population group. METHODS: Children aged 1-66 months were assessed at a public hospital by pediatricians, psychologists, and educational psychologists. The SSPS software package was used to determine population scales. RESULTS: In 630 children, who had a homogeneous sex distribution, an 88% sensibility and a 94% specificity were determined, with a positive predictive value of 88% and a negative predictive value of 96%, compared to the National Screening Test (Prueba Nacional de Pesquisa, PRUNAPE) and the cut-off scores for each age group. CONCLUSION: The ASQ 3 established that 19.5% of children were at risk of experiencing neurodevelopmental disorders. The ASQ-3 met psychometric properties compared to the PRUNAPE, which is the gold standard for the targeted and systematic assessment of developmental milestones during health checkups in a rapid, simple and cost-effective manner, so it was considered useful to monitor child neurological development. PMID- 29333807 TI - Contribution of diet to lead exposure among children aged 1 to 7 years in La Plata, Buenos Aires. AB - INTRODUCTION: Lead is a toxic metal which, even at low blood levels, can alter normal neurodevelopment in children, so no blood lead level is acceptable. Lead absorption from diet accounts for the highest contribution to blood lead levels in the population who is not exposed to contaminated environments or because of their occupation. The objective of this study was to determine the contribution of diet to lead exposure among children aged 1 to 7 years who attended Hospital de Ninos de La Plata for health check-ups. POPULATION AND METHODS: The study was conducted between June 2015 and May 2016. A questionnaire on the frequency of food intake was administered to 91 children whose average age +/- standard deviation was 3.0 +/- 1.7 years, and foods included in the analysis were selected based on this questionnaire. Selected foods were purchased from different regional stores. Composite samples were made up of different food groups. Lead levels corresponding to each food group were determined and, finally, the daily intake of lead was estimated for the studied population. RESULTS: The daily intake of lead was 138 ug/day. The food groups with the higher intake rates were processed meat products (15.4%), bakery products (14.8%), milk (12.5%), and meat (11.7%). CONCLUSIONS: Children aged 1 to 7 years attending a public hospital in La Plata have a lead burden from dietary intake of 138 ug/day. PMID- 29333808 TI - The perspective of primary health care pediatricians regarding childhood anemia and iron supplementation. AB - INTRODUCTION: Iron deficiency anemia is common in low- and middle-income countries. According to the evidence, the impact of ferrous sulfate supplementation in the pediatric population is low. Our objective was to analyze the perspective of pediatricians regarding anemia and iron supplementation. POPULATION AND METHODS: Qualitative, exploratory study. Semi-structured interviews were conducted with primary health care pediatricians from Rosario. Three core inquiry concepts were included: importance of this problem, clinical practice, and representations about iron supplementation. The analysis consisted in the systematization of the information collected by transcribing the recorded interviews and notes. RESULTS: A total of 32 interviews were conducted. All interviewees considered anemia was a relevant problem. At present, anemia is associated with a poor-quality diet. Based on the findings, pediatric practice follows national standards. There is consensus that low adherence is a barrier for the clinical management of iron deficiency anemia. Pediatricians described concepts that are potentially beneficial for the local setting, including workshops on anemia and free provision of more flavorful iron supplements. CONCLUSIONS: Iron deficiency anemia was considered a severe problem. In the primary health care setting, outstanding interventions included workshops and access to more flavorful iron supplements. PMID- 29333809 TI - Assessment of orofacial pain management in a pediatric emergency department and at home after discharge. AB - INTRODUCTION: An inadequate pain management is common in the emergency department. Our objective was to analyze pain management among children with an orofacial infection or trauma in the emergency department and to assess compliance and satisfaction with analgesia prescribed at discharge. POPULATION AND METHODS: Cross-sectional, observational and analytical study in children attending the emergency department for an orofacial infection or trauma over 2 months. Pain management in the emergency department, analgesia prescribed at home and, following a call to parents, treatment provided and its adequacy to control pain were registered. RESULTS: In total, 252patients (mean age: 4.5 years, SD: 3.89) were included. Pain assessment was recorded at the triage for 8.7%, and in the medical report, for 3.6%. Analgesia was administered to 41.3% in the emergency room. At discharge, no analgesia was prescribed to 13.9%; scheduled analgesia, to 25.4%; and as needed, to 60.3%. Pediatricians prescribed scheduled analgesia more frequently than surgeons (34.4% versus 16.5%, p < 0.01). At home, no analgesia was administered to 39.3%; scheduled analgesia, to 36.1%; and as needed, to 23%. There is little correlation between prescription at discharge and at home (Kappa: 0.178). Analgesia was considered adequate in 84% of cases, and was more frequent in trauma injuries than in infections (85.7% versus 14.3%, p < 0.01). CONCLUSIONS: Pain assessment and management was scarce in the emergency department. The most common prescription was as needed, contrary to what is recommended in the guidelines. Analgesic control worked better for trauma injuries than for infections. PMID- 29333810 TI - The value of acute phase reactants and LightCycler(r) SeptiFast test in the diagnosis of bacterial and viral infections in pediatric patients. AB - INTRODUCTION: This study was performed to investigate the value of acute phase reactants and LightCycler(r) SeptiFast test to differentiate bacterial and viral infections. POPULATION AND METHODS: Children with fever were enrolled to this prospective study. Peripheral white blood cell (WBC), C-reactive protein (CRP) and procalcitonin (PCT) were studied from all patients on day 1, 3 and 7. Blood culture and chest X-ray were also obtained on day 1. Blood samples for LightCycler(r) SeptiFast test were obtained in all patients to use them if there was uncertain diagnosis between bacterial or viral infection. The patients were divided into two groups as bacterial and viral infection. RESULTS: A total of 94 children with fever were enrolled. The mean value of fever was significantly higher in bacterial group than viral group (p <0.001). In bacterial infection group, 34 (72.3%) patients had negative blood culture. Of those, 12 (35.2%) had positive SeptiFast test. There were no positive blood culture in patients with viral infection group and all of them had negative SeptiFast test. The mean levels of CRP on the first day of admission were significantly higher in bacterial group than viral group (p <0.001). CRP and PCT levels of day 3 and 7 were significantly higher in bacterial group (p <0.001). The sensitivity and specificity levels of WBC, CRP and PCT were 63.8%, 44.7%, 74.5% and 78.7% ,68.1% and 100%, respectively. CONCLUSIONS: We found that acute phase reactants, especially PCT, and LightCycler(r) SeptiFast test may help to differentiate bacterial and viral infections. PMID- 29333811 TI - Neonatal mortality and associated factors in newborn infants admitted to a Neonatal Care Unit. AB - INTRODUCTION: The increasing survival rate of preterm infants has altered the epidemiology of neonatal diseases; however, neonatal mortality is still the main component of child mortality. The objective of this study was to evaluate neonatal mortality and associated factors in newborn infants admitted to a neonatal care unit. MATERIAL AND METHODS: Prospective cohort study conducted between January 2016 and January 2017 at Hospital Civil de Guadalajara "Dr. Juan I. Menchaca." The incidence of deaths and associated conditions was evaluated using a multivariate logistic regression analysis. RESULTS: A total of 9366 live births were registered; 15% (n: 1410) of these were admitted to the neonatal care unit. The mortality rate was 125.5 per 1000 hospitalized newborn infants (95% confidence interval [CI]: 109-144); the main reasons for admission were congenital malformations or genetic disorders (28.2%), infections (24.9%), and respiratory distress (20.9%). The conditions associated with death were gestational age < 37 weeks (OR: 2.41, 95% CI: 1.49-3.93), birth weight < 1500 grams (OR: 6.30, 95% CI: 4.15-9.55), moderate/severe respiratory distress at 10 minutes (OR: 1.89, 95% CI: 1.24-2.86), Apgar score < 7 at 5 minutes (OR: 9.40, 95% CI: 5.76-15.31), congenital malformations (OR: 5.52, 95% CI: 3.12-9.78), and less than 5 antenatal care visits (OR: 1.51, 95% CI: 1.09-2.08). CONCLUSIONS: Preterm birth, low birth weight, respiratory distress, Apgar score < 7, congenital malformations, and a history of < 5 antenatal care visits were associated with a higher risk for death. PMID- 29333812 TI - Markers of inflammation and tolerance development in allergic proctocolitis. AB - BACKGROUND: Today, as a result of an increase in the frequency of food protein induced allergic proctocolitis (FPIAP), there is a need for studies not only to enlighten the pathophysiology of the disease but also to determine simple, non invasive markers in both diagnosis, and evaluation of the development of tolerance. No study has been found in the literature about the place of neutrophil/lymphocyte ratio (NLR) and mean platelet volume (MPV), which are easy to calculate and non-invasive markers. OBJECTIVES: The purpose is to determine the relation between NLR and MPV with the diagnosis and development of tolerance in children with FPIAP. METHODS: In this retrospective cross-sectional study, clinical, demographic symptoms and laboratory findings of patients, monitored with FPIAP diagnosis in allergy and gastroenterology clinics, were acquired from the patient record system. Hemogram values at the time of diagnosis were compared with the values of healthy children of the same age and gender. RESULTS: Among 59 patients diagnosed with FPIAP, males constitute 47.4% and females constitute 52.6%. MPV and platelet crit (PCT) values were significantly high when compared to the control group (n: 67) in FPIAP cases (p < 0.001). Also, MPV and PCT values were significantly high in non-tolerance developing cases when compared to developing ones (p= 0.01). CONCLUSIONS: Contrary to NLR, MPV and PCT values have been considered to be good markers in predicting prognosis in cases with FPIAP since they are quick, cost effective and easy to calculate. PMID- 29333813 TI - Body composition and energy expenditure in a population of children and adolescents with myelomeningocele. AB - INTRODUCTION: Myelomeningocele is a congenital defect that occurs when the neural tube fails to close completely. It causes body composition alterations and a high prevalence of obesity. It is difficult to detect the most adequate indicator for a nutritional diagnosis due to the impossibility of recording accurate anthropometric measurements. OBJECTIVE: To describe body composition, resting energy expenditure and metabolic disorders in a population of patients with myelomeningocele managed at "Hospital Garrahan" by comparing obese patients with myelomeningocele and a control population with multifactorial obesity. POPULATION AND METHODS: An anthropometry, an impedance analysis, skinfold equations, arm circumference equations, indirect calorimetry, and biochemical determinations were done to all patients with myelomeningocele between June 2013 and April 2014, once the informed consent had been signed. RESULTS: 131 patients aged 0.7-18.6 years were assessed; they were classified according to their body mass index Z score into low weight (15%), normal weight (42%), overweight (12%), and obese (31%). A high correlation (r: 20.74) was observed between the fat mass % measured by impedance analysis versus that estimated using skinfolds. Patients with a high fat mass % had a higher body mass index Z-score than those with a normal fat mass % (1.07 versus -0.27, p: 0.0001) although both values were within normal parameters. A lower resting energy expenditure was observed among obese patients with myelomeningocele than predicted and in comparison with multifactorial obese controls. CONCLUSIONS: A high percentage of overweight/obesity was found in the population with myelomeningocele. Skinfold equations would be more adequate to detect obesity. Obese patients with myelomeningocele had a lower resting energy expenditure than predicted and in comparison with controls. Energy indication should be customized. PMID- 29333814 TI - Morbidity in congenital heart surgery in a public hospital in Argentina. AB - OBJECTIVE: To describe the complications associated with heart surgery, compare them to a reference population, and identify mortality risk factors. PATIENTS AND METHODS: Retrospective and descriptive study. All patients who underwent surgery at Hospital Garrahan in the 2013-2015 period were included. Age, weight, procedure, mechanical ventilation, length of stay in days, morbidity, and course were recorded. Renal failure requiring dialysis, neurological deficit, permanent pacemaker, circulatory support, phrenic nerve or vocal cord palsy, reoperation, wound infection, chylothorax, and tracheotomy were considered morbidities. A descriptive, statistical analysis by risk category was done using the Society of Thoracic Surgeons (STS) morbidity score. RESULTS: 1536 patients, median age: 12 months (interquartile range [IQR] 25-75: 3-60), weight: 8 kg (IQR 25-75: 4.4 to 17.5), mortality: 5%. A total of 361 events were recorded in 183 patients. An unplanned reoperation was the most common event (7.2%); the rest occurred in < 3% of patients. Compared to patients without complications, patients who had events required more days on mechanical ventilation: 9.95 (IQR 25-75: 7.6512.24) versus 1.8 (IQR 2575: 1.46-2.14), p< 0.00001; a longer length of stay: 28.8 (IQR 25-75: 25.1-32.5) versus 8.5 (IQR 25-75: 7.9-9.2), p< 0.0001; and had a higher mortality: 19.6% versus 3.1% (RR: 4.58, 95% CI: 3.4 to 6.0), p< 0.0001. Circulatory support and renal failure were associated with a higher mortality. CONCLUSIONS: An unplanned reoperation was the most common event. Patients with complications required more days on mechanical ventilation and a longer length of stay and had a higher mortality. Circulatory support and renal failure were associated with a higher mortality. PMID- 29333815 TI - Prevalence of vitamin K deficiency and associated factors in non-supplemented cystic fibrosis patients. AB - INTRODUCTION: Vitamin K deficiency is highly prevalent in cystic fibrosis (CF) patients despite supplementation. Moreover, no reliable risk factors for its occurrence are known. The aim was to assess the prevalence of vitamin K deficiency and associated factors in non-supplemented CF patients. METHODS: Prothrombin concentration induced by vitamin K absence (PIVKA-II) and the undercarboxylated osteocalcin percentage (u-OC) were determined. In all patients clinical status was assessed and its relation to vitamin K deficiency determined. The following tests were used for statistical analysis: Mann-Whitney test, ANOVA test or the Kruskal Wallis test, the chi-squared test or the Fisher-Freeman Halton test, and multiple linear and multiple forward stepwise logistic regression analysis. RESULTS: The study group comprised 79 CF patients aged 0.4 25.3 years. PIVKA-II and u-OC were abnormal in 56 (70.9%) and 45 (57.0%) patients. Patients with elevated PIVKA-II were significantly older (p= 0.0184) and had lower Z-score values for body weight (p= 0.0297) than those with normal concentrations. Patients with normal or pathological u-OC percentage did not differ. Abnormal PIVKA-II and u-OC were reported more frequently in subjects with two severe CFTR mutations and with worse/poor nutritional status. Multiple linear and forward stepwise regression analyses did not reveal strong predictive factors of vitamin K deficiency. CONCLUSION: Vitamin K deficiency is highly prevalent in the natural course of cystic fibrosis. There are no reliable clinical determinants of its occurrence. PMID- 29333816 TI - National Health Care Network for children with oral clefts: organization, functioning, and preliminary outcomes. AB - INTRODUCTION: Oral clefts are major congenital anomalies that may affect the lip and/or palate, and that may also involve the nose and nostrils. In Argentina, their prevalence is approximately 15 per 10 000 births. In 2015, the Ministry of Health of Argentina created a national health care network for children with oral clefts in Argentina through the joint work with the National Registry of Congenital Anomalies (Red Nacional de Anomalias Congenitas, RENAC) (coordinating center for the national network) and the SUMAR Program. The objective of this study was to describe the health care network and its preliminary outcomes. POPULATION AND METHODS: A total of 61 centers that provided a comprehensive treatment for oral clefts or in collaboration with other centers were identified and accredited. Maternity centers were connected with treating centers grouped in health care network nodes. RESULTS: In the period between March 2015 and February 2016, 550 newborn infants who were exclusively covered by the public health care system were identified. Among these, 18% had a cleft lip; 62%, cleft lip and palate; and 20%, cleft palate only; 75% were isolated cases and 25%, in association with other congenital anomalies. CONCLUSION: Approximately 70% of children were assessed by a certified treating institution and are receiving treatment. The network seeks to improve data systematization, include the largest number of centers possible, strengthen interdisciplinary team work, and promote high-quality standards for treatments. PMID- 29333817 TI - Anthropometric and biochemical assessment of nutritional status and dietary intake in school children aged 6-14 years, Province of Buenos Aires, Argentina. AB - INTRODUCTION: Childhood obesity is a global epidemic. School age and adolescence are critical stages for the implementation of eating and lifestyle habits. OBJECTIVE: To assess anthropometric and biochemical assessment of nutritional status and dietary intake in children, their relationship with socioeconomic factors and georeferencing. METHODS: Cross-sectional study in schoolchildren aged 6-14 years from the District of General Pueyrredon, during August-November 2013. Dietary intake was assessed using a 24-hour dietary recall interview, and georeferencing was done using the gvSIG software. RESULTS: A total of 1296 children were included for anthropometric and socioeconomic assessment. A sub sample included 362 children for intake and biochemical parameters. Overweight was observed in42.97% (95% confidence interval [CI]: 40.3-45.7) and obesity, in 18.5% (95% CI: 16.320.5). Breakfast was related to a lower risk for overweight (OR: 0.7, 95% CI: 0.5-0.9) and obesity (OR: 0.7, 95% CI: 0.5-0.9). Attending high school was related to a lower prevalence of weight excess (OR: 0.45, 95% CI: 0.3 0.7); male sex posed a higher risk for obesity (OR: 1.7, 95% CI: 1.3-2.3). Also, 4.44% of participants had anemia; 19.6%, hypercholesterolemia; and 21.3%, hypertriglyceridemia. Lipid and saturated fat intake was high, whereas dietary cholesterol and fiber intake was low. Geographic distribution was homogeneous. CONCLUSIONS: The prevalence of overweight was high. The risk for obesity was higher among boys; breakfast appeared as a protective factor against overweight/obesity. A low-fiber and high-fat intake, and high blood cholesterol and triglyceride levels reveal that overnutrition is a prevalent public health problem. PMID- 29333819 TI - Hashimoto's disease in a cohort of 29 children and adolescents. Epidemiology, clinical course, and comorbidities in the short and long term. AB - Hashimoto's thyroiditis is the most common cause of goiter and hypothyroidism among children and adolescents. Its clinical manifestations and course vary. The objective of this study was to review the clinical and evolutionary characteristics of Hashimoto's disease in the pediatric population. Clinical, analytical, ultrasound, epidemiological, and evolutionary data of patients with autoimmune thyroiditis seen at Hospital Universitario San Juan de Alicante between January 2010 and January 2016 were analyzed. A total of 29 patients were included in the study. A higher prevalence of girls was observed, at a 2:1 ratio. The main reason for consultation was the accidental detection of high thyroid stimulating hormone levels or positive anti-thyroid antibodies in a lab test done for other reason. In the initial analysis, 53.3% of patients had subclinical hypothyroidism and only 10% of them had frank hypothyroidism. Two patients developed thyroid cancer. PMID- 29333818 TI - Community-acquired methicillin-resistant Staphylococcus aureus infections: hospitalization and case fatality risk in 10 pediatric facilities in Argentina. AB - INTRODUCTION: Community-acquired methicillin-resistant Staphylococcus aureus (CA MRSA) infections are prevalent both in Argentina and worldwide, and they may have a severe clinical course. OBJECTIVES: To estimate the hospitalization rate and case fatality risk factors of CA-MRSA infection. METHODS: Cross-sectional, analytical study. All patients < 15 years old with community-acquired Staphylococcus aureus (CA-SA) infections admitted to 10 pediatric facilities between January 2012 and December 2014 were included. RESULTS: Out of 1141 patients with CA-SA, 904 (79.2%) had CA-MRSA. The rate of hospitalization of CA MRSA cases (per 10 000 discharges) among patients < 5 years old was 27.6 in 2012, 35.2 in 2013, and 42.7 in 2014 (p = 0.0002). The 2-4-year-old group was the most affected one: 32.2, 49.4, and 54.4, respectively (p = 0.0057). The clinical presentations included skin and soft tissue infections: 66.2%, pneumonia: 11.5%, sepsis/bacteremia: 8.5%, osteomyelitis: 5.5%, arthritis: 5.2%, psoas abscess: 1.0%, pericarditis/endocarditis: 0.8%, meningitis: 0.6%, and other: 0.7%. In terms of antibiotic resistance, 11.1% had resistance to erythromycin; 8.4%, to gentamicin; and 0.6%, to trimethoprim-sulfamethoxazole. All strains were susceptible to vancomycin. The case fatality rate was 2.2% and associated risk factors were (odds ratio [95% confidence interval]) age > 8 years (2.78, 1.05 7.37), pneumonia (6.37, 2.3717.09), meningitis (19.53, 2.40-127.87), and sepsis/bacteremia (39.65, 11.94-145.55). CONCLUSIONS: The rate of CA-MRSA infection was high; the rate of hospitalization increased in the 2013-2014 period; the 2-4-year-old group was the most affected one. A higher case fatality risk was observed among patients > 8 years old and those with the clinical presentations of pneumonia, meningitis, and sepsis. PMID- 29333820 TI - Osteomyelitis in burn children: Ten years of experience. AB - INTRODUCTION: Osteomyelitis is uncommon among burn patients. OBJECTIVE: To describe the clinical, microbiological, and evolutionary characteristics of burn children with osteomyelitis hospitalized in a tertiary care facility. METHODS: Retrospective and descriptive study conducted between January 2007 and January 2017. RESULTS: Out of 600 burn children, 12 developed osteomyelitis (incidence: 2%). Eleven patients had a burn caused by direct fire. Patients' median age was 42.5 months (interquartile range [IQR]: 27-118 months), and their median burned surface area was 33.5% (IQR: 18.5-58%). Osteomyelitis was diagnosed at a median period of 30 days following the burn injury. The most common locations were the upper limbs and the cranial vault. Fever was the most frequent clinical manifestation. The most common microorganisms isolated in bone tissue were fungi in 9 patients. All showed compatible anatomopathological findings. The treatment lasted a median of 44.5 days (IQR: 34.5-65.5 days). Six patients had motor sequelae and 1 died. CONCLUSION: Fungal osteomyelitis was the most commonly observed etiology. Half of patients had functional sequelae and only 1 patient died. PMID- 29333822 TI - Labial adhesions: Experience in a children's hospital. AB - Labial adhesions are defined as the complete or partial fusion of the pudendal cleft due to the agglutination of the labia minora in the midline. They most commonly occur between 3 months and 6 years of life. Between January 1st, 2002 and December 31st, 2015, 425 girls diagnosed with labial adhesions and seen at the Unit of Pediatric and Adolescent Gynecology of Hospital de Ninos de La Plata, Argentina, were analyzed. Their average age was 2.7 years (standard deviation: 2.6 years). The most common presentation of labial adhesions was that involving more than 75% of the total length of the labia (p < 0.0000001). A total of 84.2% of patients showed no symptoms and 4% had urinary symptoms. Also, 68.4% of the girls who had a history of urinary tract infection had labial adhesions with a length of involvement of > 75%. Finally, 90.6% of cases resolved with topical estrogens; and 2.1% had adverse events. PMID- 29333821 TI - Opioid treatment for mixed pain in pediatric patients assisted by the Palliative Care team. Five years of experience. AB - Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage. Depending on its pathophysiological mechanism, it may be classified into nociceptive, neuropathic, and mixed pain. If pain is moderate to severe, a strong opioid should be administered and, when this is the case, morphine is the drug of choice. If morphine is ineffective or causes intolerable adverse effects, opioid rotation is recommended. Our objective was to describe the drug management for mixed pain used in patients assisted by the Palliative Care team of Hospital General de Ninos Pedro de Elizalde between August 2011 and September 2015. A total of 72 patients were included. Their mean age was 10.1 years, and the most common underlying disease was cancer. The initial opioid was morphine in 57 cases; 48 patients received adjuvant drugs. Opioid rotation was indicated in half of cases, and the most common switch was from morphine to methadone. PMID- 29333824 TI - Eosinophilic esophagitis and esophageal atresia: coincidence or causality? AB - Eosinophilic esophagitis is an immune-mediated chronic disease of the esophagus characterized by symptoms related to esophageal dysfunction and tissue eosinophilia. In the endoscopy, the esophageal mucosa may appear normal or show exudates, rings, edema, furrows, and strictures. Its management is based on elimination diet, topical corticosteroids and/or esophageal dilation. Atresia is the most common congenital alteration of the esophagus; it requires surgical repair and poses potential complications, such as gastroesophageal reflux, strictures, and esophageal dysmotility. Up to 2015, 48 cases of eosinophilic esophagitis and esophageal atresia were reported, with dysmotility, reflux, and long-term acid suppression involvement. Prevalent clinical signs include dysphagia, difficulty eating, and reflux symptoms, so an esophagogastroduodenoscopy with biopsy is recommended to rule out associated eosinophilic esophagitis in patients with esophageal atresia and persistent symptoms before performing an esophageal dilation and/or anti-reflux surgery. If eosinophilic esophagitis is confirmed, it should be managed with the corresponding drugs, and the subsequent therapeutic approach will depend on its clinical course. PMID- 29333823 TI - Brain death and organ donation in Argentine pediatric intensive care units. A multicenter study. AB - Brain death (BD) is a condition determined by the complete and irreversible absence of brain functions. Maintenance of vital functions creates an opportunity for organ donation. A retrospective study was carried out in 7 pediatric intensive care units of Argentina (from 1/1/2013 to 9/30/2016) to determine the incidence of clinical and certified BD, and the proportion of effective transplantations. Among deceased patients, 19.14% (147/768) met the clinical requirements for BD, and the main cause of BD was multiple trauma. BD was certified in 13.4% of deceased patients (103); an electroencephalogram and an apnea test were the most commonly used ancillary methods. Organ maintenance time was 24 hours. A total of 87 families were approached for donation; 59 were rejected (they were not suitable or refused). Effective donors accounted for 25% (26/103) of patients with certified BD and 72 patients received solid organs. PMID- 29333825 TI - 6 minutes. AB - At present, there is a trend towards reducing the duration of office visits. In some regions of Spain, it has been set at 6 minutes per patient. This impacts on several levels: literally, many times it is impossible to complete the medical act; at an emotional level, because there is little possibility to establish an adequate doctor-patient relationship; and symbolically, for considering that the main aspects of humane health care are expendable. This takes place in a society that tends to see health care as a merchandise subject to market rules that gives priority to the immediate over the important. Patients, physicians, and managing authorities are participants of this change which negatively affects current medical practice. The increase in unnecessary additional testing, avoidable treatments, the costs of iatrogenesis, a lower treatment adherence, and unnecessary reconsultations are proven consequences. In the field of pediatrics, this increases the risk of losing screening opportunities in critical areas. PMID- 29333826 TI - Vitamin D deficiency in pediatric clinical practice. AB - INTRODUCTION: Vitamin D research suggests it has a role in disorders other than bone metabolism. OBJECTIVE: To update the information on vitamin D deficiency (VDD) in pediatric clinical disorders. METHODS: Search in virtual libraries, giving priority to clinical and longitudinal studies and meta-analyses on VDD in the pediatric age group published in the past 20 years. The terms "vitamin D deficiency", "children and adolescents" (both in Spanish and English) were used as search descriptors. RESULTS: In the pediatric population, VDD is associated with different clinical diseases, such as bone alterations, insulin resistance, metabolic syndrome, respiratory tract infections, asthma, and autoimmune diseases. Besides, it is associated with prematurity, obesity, malabsorption, use of anticonvulsant agents, and lifestyle characteristics, such as clothing, extreme latitudes, low consumption, and little sun exposure. CONCLUSIONS: According to the evidence, VDD is highly prevalent in several disorders and diseases in the pediatric age group. The recommendation is to prevent VDD in risk conditions and to maintain 25(OH)D serum levels > 75 nmol/L. PMID- 29333827 TI - Rectus sheath hematoma in a macrosomie neonate following difficult delivery. Case report. AB - Macrosomia is a risk factor for birth injuries and is associated with neonatal morbidity and mortality. Cephalohematoma and clavicular fracture are the most frequent birth injuries. Intraabdominal injuries are uncommon birth injuries. Rectus sheath hematoma (RSH) is an accumulation of blood in the sheath of rectus abdominis muscle. It is associated with trauma, operations and anticoagulant therapy, especially in adults and elders. We present a macrosomic male neonate with difficult vaginal delivery, who had in the physical examination periumblical ecchymose of 1x1 cm and a parietal cephalohametoma of 1x1 cm. The abdominal ultrasonogram and the computed tomography scan of the abdomen showed a 7x4x2 cm right rectus sheath hematoma. PMID- 29333828 TI - [Congenital Horner syndrome. Case report]. AB - Horner syndrome is characterized by the following triad of clinical signs: miosis, ptosis and facial anhidrosis. In addition, iris heterochromia, conjunctival injection, facial erythema, congestive nasal mucosa and apparent enophthalmos secondary to the reduction of the palpebral fissure can appear. It is caused by an interruption of the sympathetic pathway that extends from the hypothalamus to the orbit. Because there is no decussation, the signs are homolateral to the lesion. Traditionally, it is classified as congenital and acquired. Occasionally, it is associated with neoplasias such as neuroblastoma. It remains controversial what imaging studies should be requested as a protocolized workup of this neurological syndrome in a patient. We report the case of a 45-day-old infant with congenital Horner syndrome. PMID- 29333829 TI - [Galactosialidosis: a new "de novo" mutation in CTSA gene in a patient with late infantile galactosialidosis]. AB - Galactosialidosis (OMIM #256540) is an autosomal recessive lysosomal storage disorder caused by mutations in the CTSA gene, which encodes the protective protein cathepsin A. The loss of function of this protein causes a secondarily deficiency of beta-galactosidase and N-acetyl-a-neuraminidase enzymes activities. We describe the clinical, biochemical and molecular analysis of a case report with a phenotype compatible with the late infantile form. The biochemical analysis reveled deficiencies of beta-galactosidase and neuraminidase activities in dried blood spot and fibroblasts and the molecular study showed two missense mutations in the CTSA gene: a previously reported mutation, p.Arg441Cys (c.1321C>T), and a novel mutation, p.His475Pro (c.1424 A>C), located in exons 14 and 15, respectively. PMID- 29333830 TI - [Treatment with sublingual desmopressin in two infants with hydranencephaly and central diabetes insipidus]. AB - Central diabetes insipidus is a rare disease in children caused by a deficiency of vasopressin. Its main clinical manifestations are polyuria and polydipsia. Brain malformations are one of the main causes. Desmopressin is the synthetic drug of choice for the treatment. One of the routes of administration is sublingual and its use in infants is very limited. We describe two infants with central diabetes insipidus and hydranencephaly who were successfully treated with sublingual desmopressin. PMID- 29333831 TI - [Mammary hemangioma in an infant with apparent mastitis. Case report]. AB - Mammary pathology is infrequent during childhood. It is rare the probability of finding a breast mass in an infant. The most frequent possible diagnoses at this age are breast abscess, mastitis, breast engorgement due to maternal hormonal stimulation and hemangioma. Reaching the proper diagnosis is essential in order to apply a suitable treatment and avoid the potential disease complications. We present the case of a female infant having a mass in the right breast from birth. Initially the entity was treated as mastitis. Nevertheless, the bad evolution made necessary considering the differential diagnosis. It was concluded to be a hemangioma. Due to the lesion ulceration and the potential risk of developing breast hypoplasia, treatment with propranolol was started. The tumor was almost completely resolved. PMID- 29333832 TI - An incidentally detected anomalous origin of the right coronary artery from the pulmonary artery in an infant. AB - Isolated anomalous origin of the right coronary artery from the main pulmonary artery is a rare congenital anomaly, and few cases have been reported in the pediatric age group. Here in, we report an asymptomatic case of a 2-month-old male infant who has been diagnosed as anomalous origin of the right coronary artery from the main pulmonary artery during the evaluation for cardiac abnormalities. For a suspicion on echocardiography, cardiac catheterization and coronary angiography performed to verify the diagnosis of anomalous origin of the right coronary artery from the main pulmonary artery. The patient underwent surgery and did well after two months follow up. Early diagnosis may prevent patients from cardiovascular complications. PMID- 29333833 TI - [Infrequent mutation in renal-coloboma syndrome: case report and review]. AB - Renal-coloboma syndrome is an autosomal dominant disease characterized by renal hypodysplasia and coloboma. A case of a 12-year-old girl with chronic kidney disease, bilateral optic nerve colobomas and an exceptional PAX-2 gene mutation is presented. Diagnosed in prenatal scans with bilateral renal hypoplasia, she presented clinical and laboratory findings of chronic kidney disease at 5 days of life. Following tests showed grade II bilateral vesicoureteral reflux spontaneously solved, maintained non nephrotic proteinuria controlled with enalapril and bilateral colobomas with left macular atrophy. Renal function remained stable. Genetic study showed de novo and non sense mutation p.R104X in heterocygosis. Currently there are 80 published cases of renal-coloboma syndrome associated with this gene mutations. Ophthalmologic and genetic evaluations are crucial in cases affected by renal hypodysplasia. Renal function will establish prognosis. We review the etiopathogenesis of this disease. PMID- 29333834 TI - [Congenital esophageal stenosis: diagnosis and treatment. Cases review]. AB - Congenital esophageal stenosis is a very rare condition and there is no standard treatment. We report the diagnosis, treatment and outcome of 11 patients with this condition managed at our institution. The most common symptom was dysphagia. The age at diagnosis was between 1 day and 14 years (mean age: 4.7 years). The esophagogram confirmed the diagnosis. Five patients presented associated anomalies. Four patients received surgical treatment and 7 only balloon dilatations. Pathologic examinations showed 3 fibromuscular stenosis and one with tracheobronchial remnants. All patients had a good outcome with a mean follow up of 4.5 years. Balloon dilatations were the definitive treatment in most of the patients. PMID- 29333835 TI - [An unintended diagnosis: Serotonergic toxicity secondary to drug interactions. Case reports]. AB - Serotonin toxicity is a potentially life-threatening condition associated with increased serotonergic activity in the central nervous system. It is seen with therapeutic medication use, intentional self-poisoning and inadvertent interactions (SSRI-isoniazid). Although this pathology is increasingly common, it is not well recognized by physicians and manifestations may be wrongly attributed to another cause. The aim of this paper is to describe the clinical picture of a patient, to collaborate on diagnosis and to improve medical care of these patients. PMID- 29333836 TI - [Phakomatosis pigmentovascularis cesioflammea: a case report]. AB - Phakomatosis pigmentovascularis (PPV) is a syndrome characterized by the association of a vascular nevus with a congenital pigmented lesion (epidermal nevus, nevus spilus, and dermal melanocytosis). There are different types of PPV according to the pigmentary nevus associated with the vascular malformation. Patients may present only the cutaneous condition or have systemic manifestations, among them, trauma, neurological and ophthalmological disorders. We report the case of a 1-year-old girl who had congenital glaucoma. On examination, we identified facial paralysis, bilateral ocular melanosis, segmental capillary vascular malformation on the face as on left trunk and extremities, and aberrant Mongolian spots on the upper back, lumbosacral area and buttocks. Due to clinical manifestation, the diagnosis of PPV was made. The patient was evaluated by Neurology, Traumatology and keeps on with ophthalmological controls. Complementary studies are important, to rule out extracutaneous manifestations in PPV. PMID- 29333837 TI - [Biodegradable airway stent for the treatment of bronchial obstruction in the child. Case report]. AB - Bronchial obstruction is infrequent in the child. The main cause is malacia or benign stenosis. Management alternatives range from conservative treatment to complex surgical and/or endoscopic techniques. Placement of a stent can play a key role in situations where there is no other therapeutic option. However, the ideal stent is not yet available. In the last few years, progress has been made in the development and characterization of novel biodegradable materials in order to overcome the drawbacks of traditional stents made of silicone or metal. We present our experience with a new type of biodegradable airway stent in the treatment of severe bronchomalacia in a 2-year-old child; we evaluate safety and clinical effectiveness. We describe the indications and potential complications of pediatric endoprosthesis in the airway. PMID- 29333838 TI - Solitary median maxillary central incisor, holoprosencephaly and congenital nasal pyriform aperture stenosis in a premature infant: case report. AB - Solitary median maxillary central incisor syndrome is a rare disorder involving midline abnormalities such as holoprosencephaly, nasal cavity anomalies, cleft palate-lip, hypotelorism, microcephaly, and panhypopituitarism. Congenital nasal pyriform aperture stenosis is a lethal cause of neonatal respiratory distress due to narrowing of the pyriform aperture anteriorly and it can be confused with choanal atresia. In this report, we present a newborn infant with solitary median maxillary central incisor syndrome accompanied by other abnormalities including holoprosencephaly, nasal pyriform aperture stenosis, microcephaly and panhypopituitarism. Chromosomal analysis showed heterozygous SIX3 gene deletion at 2p21 region resulting in a more severe form of holoprosencephaly. PMID- 29333839 TI - [Pallister-Killian syndrome in a Mexican mestizo patient. Case report]. AB - Pallister-Killian syndrome is caused by a tetrasomy 12p mosaicism and is characterized by facial dysmorphism, pigmentary skin anomalies, congenital heart defects, diaphragmatic hernia, epilepsy and mental retardation. The diagnosis is complex as the cytogenetic analysis in blood is usually normal, requiring karyotyping in other tissues, therefore the clinical suspicion is critical to guide the diagnostic tests and the patient requires an interdisciplinary clinical evaluation regarding the several manifestation of the syndrome. W e present the case of a Mexican mestizo female patient of 4 years of age referred by psychomotor delay and cleft palate; the clinical multidisciplinary evaluation demonstrated characteristics corresponding to the Pallister-Killian syndrome. The GTG banding karyotype analysis was normal, the skin fibroblast was mos47,XX,i(12)(p10)[85]/46,XX[21]. This case is an example of the importance of the clinical evaluation in order to establish a diagnosis that is a challenge for the clinical multidisciplinary team to offer medical management and genetic counseling. PMID- 29333840 TI - [Giant retroperitoneal lipoblastoma. Case report]. AB - Lipoblastoma is part of tumors derived from adipose tissue. It is a benign neoplasm that can be localized or diffuse, affecting children in early childhood and usually located in the trunk and extremities. These tumors are uncommon in the pediatric age, but when one of them is present, it is a challenge that we must resolve quickly due to the risk of malignancy that involves other similar neoplastic lesions. The preoperative diagnosis is difficult, because the imaging methods do not provide specific information that allows us to differentiate them from other tumors, such as liposarcomas. The definitive diagnosis is anatomopathological and, in doubtful cases, cytogenetic confirmation is necessary. We present the case of a 14-month-old boy with diagnosis of large sized lipoblastoma of retroperitoneal localization. PMID- 29333841 TI - [Granular cell tumor of the larynx in the child. Case report]. AB - Laryngeal tumors are uncommon in children, accounting only for 2% of the laryngeal anomalies. Ninety-eight percent are benign; the most frequent ones are recurrent respiratory papillomatosis and haemangioma. Granular cell tumor, also called Abrikossoff tumor, is an unusual benign neoplasm, especially in the larynx. Clinical manifestations depend on the size and location of the tumor. Dysphonia is the main presenting symptom. The diagnosis is confirmed by the biopsy. The treatment of choice is surgery. We present a 9-year-old girl with dysphonia and exertion dyspnea due to a granular cell tumor of the larynx, and we emphasize the importance of considering the endoscopic evaluation of the airway in every child with progressive or persistent dysphonia in order to determine the etiology. PMID- 29333842 TI - An adolescent with idiopathic pleuroparenchymal fibroelastosis. Case report. AB - Idiopathic pleuroparenchymal fibroelastosis (IPPFE) is a rare disorder recently included in rare idiopathic interstitial pneumonias according to the updated American Thoracic Society/European Respiratory Society classification. IPPFE is characterized by pleural and subpleural parenchymal fibrosis causing volume loss predominantly in the upper lung lobes. Age of onset is variable, IPPFE mainly occurs in third and fourth decades. We present a 16 year old patient with a 2 year history of exertional dyspnea, nonproductive cough and weight loss. On physical examination, auscultation revealed diminished breath sounds on the upper lobes. Chest radiograph showed apical pleural thickening and volume loss. Computerized tomographic scan (CT) of chest revealed ground glass densities and tubular bronchiectasis predominantly in upper lobes bilaterally, with interlobular septal thickening of the pleura and enlarged mediastinal lymph nodes. Thoracoscopic lung biopsy was performed and histological evaluation showed subpleural fibrosis and elastic staining demonstrated fragmented elastic fiber deposition in the subpleural area and adjacent pulmonary parenchyma suggesting IPPFE. To our knowledge this is the first case in childhood. Therefore, pediatricians should be aware of this disease for the diagnosis and appropriate management. PMID- 29333843 TI - [Use of the identification bracelet in the newborn. A safe method?] AB - BACKGROUND: The placement of newborn bracelets is the most widely used method for patient identification in Argentina. OBJECTIVES: To evaluate the permanence of the identification bracelets during the hospitalization. POPULATION: All the term newborns who remained with their mother. Design: observational, prospective study, cohort type, randomized: forearm, leg. RESULTS: Cases observed: 914. Forearm: 457, leg: 438. At the time of discharge, the frequency of permanence of the identification bracelets as originally placed was 67% in the forearm and 72% in the leg. CONCLUSIONS: A third of newborns lacked the bracelet as originally placed at the time of discharge. The permanence was higher in the leg. PMID- 29333844 TI - [Success in probing for congenital nasolacrimal duct obstruction. Ten years experience]. AB - INTRODUCTION: The congenital nasolacrimal duct obstruction is a common pathology, with low morbidity, but not exempt of complications without the correct diagnosis and management. METHODS: Retrospective study from 2005 to 2015 in patients who were submitted to a probing procedure. We identified age at procedure, gender, laterality and presence or absence of success with the procedure. RESULTS: One hundred thirty-seven eyes were analyzed. The median age was 17 months and the total success rate was 85.4%. CONCLUSION: In congenital nasolacrimal duct obstruction there is a high rate of spontaneous resolution with the proper initial conservative management and, in patients older than 12 months, probing has a high rate of success. PMID- 29333845 TI - [Script Concordance Test: first nationwide experience in pediatrics]. AB - The Script Concordance Test is a suitable test for assessing clinical reasoning in postgraduate medical education. We present the first nationwide, realtime, web based experience of a Script Concordance Test administered to 3rd year pediatric residents. The test was administered to 268 residents (postgraduate year 3), from 56 different programs, requiring 46.1 +/- 27.1 minutes to complete it, and scoring 65.3 +/- 7.47 points. A later survey showed limited satisfaction from participants. This experience showed that this kind of test is feasible in this setting. PMID- 29333846 TI - [Food allergy in children: recommendations for diagnosis and treatment]. AB - Food allergy arises from a specific immune response induced by food exposure. It is the first cause of anaphylaxis in childhood. Its prevalence increased exponentially in western countries. The proteins most frequently involved in infants are cow's milk and hen's egg; and in adults, seafood. Peanuts have the same frequency in both groups. The clinical manifestations and methodology of study are directly related to the pathophysiology of the disease. Clinical history, skin prick test, patch test, and food oral challenge are essential to arrive at a correct diagnosis, that will avoid unnecessary exclusions or exposures that carry life risk. The treatment is based on the correct avoidance of responsible food (considering hidden allergens), besides patient and their care giver's education, to maintain a good quality of life. PMID- 29333847 TI - A Rare Cause of Acute Pancreatitis: Gastrostomy Catheter Migration. PMID- 29333848 TI - Highly Stable and Luminescent Perovskite-Polymer Composites from a Convenient and Universal Strategy. AB - Extensive attention has been received in recent years for perovskite-polymer composites because of their combination of properties from polymers and perovskites. In this work, a convenient and universal strategy is reported to prepare cesium lead bromide or organolead halide methylammonium bromide polymer composites. This technique integrates the formation of perovskite crystals and the polymer matrix in a one-pot reaction, avoiding the tedious separation and preparation of perovskites. The method is universal for most of the commercially available monomers and polymers, which has been verified in this report using poly(methyl methacrylate), poly(butyl methacrylate), and polystyrene. The physical properties of the varied polymers lead to different luminescent properties and stabilities of the composites. No organic solvent is required during the preparation, indicating a green technique for the composites. Additionally, the resulted perovskite-polymer composites are extraordinarily stable, maintaining their quantum yield for more than 1 month in air. On the basis of the above properties, a prototype of white light-emitting diodes was successfully constructed with feasible color characters and narrow bandwidths. Furthermore, large-area (dimension: 10 * 7 * 0.15 cm) perovskite-polymer plates are easily prepared via the one-pot strategy, showing that the technique is ready for possible large-area optical devices. This work provides an efficient technique toward various kinds of perovskite-polymer composites for both scientific research studies and future applications. PMID- 29333849 TI - Asymmetric Conjugate Addition of alpha-Cyanoketones to Enones Using Diaminomethylenemalononitrile Organocatalyst. AB - A diaminomethylenemalononitrile organocatalyst efficiently catalyzed the asymmetric conjugate addition of alpha-cyanoketones to vinyl ketones to give the corresponding 1,5-dicarbonyl compounds, which bear an all-carbon quaternary stereogenic center with high enantioselectivities. This report is the first example of the asymmetric conjugate addition of alpha-cyanoketones to vinyl ketones using an organocatalyst. PMID- 29333850 TI - Engineering NiS/Ni2P Heterostructures for Efficient Electrocatalytic Water Splitting. AB - Developing high-active and low-cost bifunctional materials for catalyzing the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) holds a pivotal role in water splitting. Therefore, we present a new strategy to form NiS/Ni2P heterostructures. The as-obtained NiS/Ni2P/carbon cloth (CC) requires overpotentials of 111 mV for the HER and 265 mV for the OER to reach a current density of 20 mA cm-2, outperforming their counterparts such as NiS and Ni2P under the same conditions. Additionally, the NiS/Ni2P/CC electrode requires a 1.67 V cell voltage to deliver 10 mA cm-2 in a two-electrode electrolysis system, which is comparable to the cell using the benchmark Pt/C||RuO2 electrode. Detailed characterizations reveal that strong electronic interactions between NiS and Ni2P, abundant active sites, and smaller charge-transfer resistance contribute to the improved HER and OER activity. PMID- 29333852 TI - Synthesis of Molecularly Imprinted Polymer Nanoparticles for alpha-Casein Detection Using Surface Plasmon Resonance as a Milk Allergen Sensor. AB - Food recalls due to undeclared allergens or contamination are costly to the food manufacturing industry worldwide. As the industry strives for better manufacturing efficiencies over a diverse range of food products, there is a need for the development of new analytical techniques to improve monitoring of the presence of unintended food allergens during the food manufacturing process. In particular, the monitoring of wash samples from cleaning in place systems (CIP), used in the cleaning of food processing equipment, would allow for the effective removal of allergen containing ingredients in between food batches. Casein proteins constitute the biggest group of proteins in milk and hence are the most common milk protein allergen in food ingredients. As such, these proteins could present an ideal analyte for cleaning validation. In this work, molecularly imprinted polymer nanoparticles (nanoMIPs) with high affinity toward bovine alpha casein were synthesized using a solid-phase imprinting method. The nanoMIPs were then characterized and incorporated into label free surface plasmon resonance (SPR) based sensor. The nanoMIPs demonstrated good binding affinity and selectivity toward alpha-casein (KD ~ 10 * 10-9 M). This simple affinity sensor demonstrated the quantitative detection of alpha-casein achieving a detection limit of 127 +/- 97.6 ng mL-1 (0.127 ppm) which is far superior to existing commercially available ELISA kits. Recoveries from spiked CIP wastewater samples were within the acceptable range (87-120%). The reported sensor could allow food manufacturers to adequately monitor and manage food allergen risk in food processing environments while ensuring that the food produced is safe for the consumer. PMID- 29333851 TI - Oxygen Vacancy Dynamics at Room Temperature in Oxide Heterostructures. AB - Oxygen vacancy dynamic behavior at room temperature in complex oxides was carefully explored by using a combined approach of ion liquid gating technique and resistance measurements. Heterostructures of PrBaCo2O5+delta/Gd2O3-doped CeO2 epitaxial thin films were fabricated on (001) Y2O3-stabilized ZrO2 single crystal substrates for systematically investigating the oxygen redox dynamics. The oxygen dynamic changes as response to the gating voltage and duration were precisely detected by in situ resistance measurements. A reversible and nonvolatile resistive switching dynamics was detected at room temperature under the gating voltage >13.5 V with pulse duration >1 s. PMID- 29333853 TI - Highly Sensitive and Very Stretchable Strain Sensor Based on a Rubbery Semiconductor. AB - There is a growing interest in developing stretchable strain sensors to quantify the large mechanical deformation and strain associated with the activities for a wide range of species, such as humans, machines, and robots. Here, we report a novel stretchable strain sensor entirely in a rubber format by using a solution processed rubbery semiconductor as the sensing material to achieve high sensitivity, large mechanical strain tolerance, and hysteresis-less and highly linear responses. Specifically, the rubbery semiconductor exploits pi-pi stacked poly(3-hexylthiophene-2,5-diyl) nanofibrils (P3HT-NFs) percolated in silicone elastomer of poly(dimethylsiloxane) to yield semiconducting nanocomposite with a large mechanical stretchability, although P3HT is a well-known nonstretchable semiconductor. The fabricated strain sensors exhibit reliable and reversible sensing capability, high gauge factor (gauge factor = 32), high linearity (R2 > 0.996), and low hysteresis (degree of hysteresis <12%) responses at the mechanical strain of up to 100%. A strain sensor in this format can be scalably manufactured and implemented as wearable smart gloves. Systematic investigations in the materials design and synthesis, sensor fabrication and characterization, and mechanical analysis reveal the key fundamental and application aspects of the highly sensitive and very stretchable strain sensors entirely from rubbers. PMID- 29333854 TI - Cucurbit[8]uril-Based Giant Supramolecular Vesicles: Highly Stable, Versatile Carriers for Photoresponsive and Targeted Drug Delivery. AB - Highly stable giant supramolecular vesicles were constructed by hierarchical self assembly of cucurbit[8]uril (CB[8])-based supra-amphiphiles for photoresponsive and targeted intracellular drug delivery. These smart vesicles can encapsulate the model drugs with high loading efficiencies and then release them by manipulating photoswitchable CB[8] heteroternary complexation to regulate the formation and dissociation of supra-amphiphiles that cause dramatic morphological changes of the assemblies to achieve remote optically controlled drug delivery. More importantly, the confocal microscopy analysis, cellular uptake experiment, and cell viability assay have shown that the giant vesicles are able to maintain the structural integrity and stability within actual cellular environments and exhibit obvious advantages for intracellular drug delivery such as low toxicity, easy surface modification for tumor-targeting selectivity, and rapid internalization into different human cancer cell lines. A synergistic mechanism that integrates multiple pathways including energy-dependent endocytosis, macropinocytosis, cholesterol-dependent endocytosis, and microtubule-related endocytosis was determined to facilitate the internalization process. Moreover, cytotoxicity experiments and flow cytometric analysis have demonstrated that the doxorubicin hydrochloride-loaded vesicles exhibited a significant therapeutic effect for tumor cells upon UV light irradiation, which makes the photoresponsive system more promising for potential applications in pharmaceutically relevant fields. PMID- 29333855 TI - Carbon- and Binder-Free Core-Shell Nanowire Arrays for Efficient Ethanol Electro Oxidation in Alkaline Medium. AB - To achieve high electrochemical surface area (ECSA) and avoid carbon support and binder in the anode catalyst of direct ethanol fuel cell, herein, we design freestanding core-shell nickel@palladium-nickel nanowire arrays (Ni@Pd-Ni NAs) without carbon support and binder for high-efficiency ethanol electro-oxidation. Bare Ni nanowire arrays (Ni NAs) are first prepared using the facile template assistant electrodeposition method. Subsequently, the Ni@Pd-Ni NAs are formed using one-step solution-based alloying reaction. The optimized Ni@Pd-Ni NA electrode with a high ECSA of 64.4 m2 g-1Pd exhibits excellent electrochemical performance (peak current density: 622 A g-1Pd) and cycling stability for ethanol electro-oxidation. The facilely obtained yet high-efficiency core-shell Ni@Pd-Ni NA electrode is a promising electrocatalyst, which can be utilized for oxygen reduction reaction, urea, hydrazine hydrate, and hydrogen peroxide electro oxidation, not limited to the ethanol electro-oxidation. PMID- 29333856 TI - Analysis of the pH-Dependent Fe(III) Ion Chelating Activity of Anthocyanin Extracted from Black Soybean [Glycine max (L.) Merr.] Coats. AB - The Fe(III) chelating activity of anthocyanin extracted from black soybean coats was investigated at pH 3.0, 5.0, 6.5, 7.0, and 7.4 with fluorescence spectroscopy and microscale thermophoresis (MST). Cyanidin-3-glucoside (C3G) was determined to be 98% of the total anthocyanin by high-performance liquid chromatography. The binding affinity (Ka) exhibited significant pH-dependent behavior: Ka was 9.7167 * 104, 1.0837 * 104, 1.4284 * 104, 5.4550 * 104, and 3.0269 * 104 M-1 at pH 3.0, 5.0, 6.5, 7.0, and 7.4, respectively (p < 0.05). The MST data showed that DeltaG < 0 and DeltaH < 0, demonstrating that chelation is spontaneous and exothermic. Because both DeltaH and DeltaS < 0, the chelation involves hydrogen bonds and/or van der Waals forces for pH 3.0, 5.0, and 6.5. Electrostatic interactions contributed to chelation at pH 7.0 and 7.4 with DeltaH < 0 and DeltaS > 0. With the formation of chelates, C3G improved the solubility of Fe(III) at pH 6.5, 7.0, and 7.4 to enhance the ferric ion bioavailability, except for aggregation observed at pH 5.0. PMID- 29333857 TI - Active Site Revealed for Water Oxidation on Electrochemically Induced delta-MnO2: Role of Spinel-to-Layer Phase Transition. AB - Seeking for active MnOx material as artificial water splitting catalyst has been a long history since the discovery of PSII system in nature. To date, the highest activity MnOx catalyst reported for oxygen evolution reaction (OER) does however not belong to common MnO2 polymorphs (alpha-, beta-, delta-MnO2), but rather to nascent delta-MnO2 layer produced in situ from spinel under electrochemical conditions with unknown active site structure. Here with the stochastic surface walking (SSW) pathway sampling method, we for the first time resolve the atomic level mechanism of spinel-to-layer Mn3O4 solid phase transition in aqueous electrolyte. We show that a transient H0.5MnO2 phase is the precursor of transition that forms at high voltage (>1 V), and it undergoes the solid-to-solid phase transition to produce a delta-MnO2 layer, which is accompanied by Mn dissolution, dislocation, layer-breaking, and insertion of water/cations between layers. This leads to the generation of a variety of possible defective structures. We demonstrate using first-principles calculations that a special edge site with neighboring Mn vacancy provides the best OER activity with an overpotential of 0.59 V, 0.19 V lower than that of pristine MnO2. The high activity of such Mn sites are attributed to its special local structure: pseudocubane with one corner missing. The presence of the Mn vacancy near the active site enhances the adsorption of OH intermediate in OER. This defective cubane structure shares the common geometrical and electronic features found in the PSII system. PMID- 29333858 TI - Mineral- and Base-Catalyzed Hydrolysis of Organophosphate Flame Retardants: Potential Major Fate-Controlling Sink in Soil and Aquatic Environments. AB - The ubiquitous occurrence of organophosphate flame retardants (OPFRs) in aquatic and soil environments poses significant risks to human health and ecosystems. Here, we report on the hydrolysis of six OPFRs and three structural analogues in the absence and presence of metal (hydr)oxide minerals. Eight of the target compounds showed marked degradation in alkaline solutions (pH 9-12) with half lives ranging from 0.02-170 days. Kinetics follow a second-order rate law with apparent rate constants for base-catalyzed hydrolysis (kB) ranging from 0.69-42 000 M-1 d-1. Although hydrolysis in homogeneous solution at circumneutral pH is exceedingly slow (t1/2 > 2 years, except for tris(2,2,2-trichloroethy) phosphate), rapid degradation is observed in the presence of metal (hydr)oxide minerals, with half-lives reduced to <10 days for most of the target OPFRs in mineral suspensions (15 m2/L mineral surface area loading). LC-qToF-MS analysis of transformation products confirmed ester hydrolysis as the active degradation pathway. Values of kB for individual OPFRs are highly variable and correlate with acid dissociation constants (pKa) of the corresponding alcohol leaving groups. In contrast, kinetic parameters for mineral-catalyzed reactions are much less sensitive to OPFR structure, indicating that other factors like mineral-OPFR interactions are rate controlling. Given the documented recalcitrance of OPFRs to biodegradation and photodegradation, these results suggest that mineral-catalyzed hydrolysis may be a major fate-controlling sink in natural environments. PMID- 29333859 TI - Chromatographic Separation and Visual Detection on Wicking Microfluidic Devices: Quantitation of Cu2+ in Surface, Ground, and Drinking Water. AB - Copper is widely applied in industrial and technological applications and is an essential micronutrient for humans and animals. However, exposure to high environmental levels of copper, especially through drinking water, can lead to copper toxicity, resulting in severe acute and chronic health effects. Therefore, regular monitoring of aqueous copper ions has become necessary as recent anthropogenic activities have led to elevated environmental concentrations of copper. On-site monitoring processes require an inexpensive, simple, and portable analytical approach capable of generating reliable qualitative and quantitative data efficiently. Membrane-based lateral flow microfluidic devices are ideal candidates as they facilitate rapid, inexpensive, and portable measurements. Here we present a simple, chromatographic separation approach in combination with a visual detection method for Cu2+ quantitation, performed in a lateral flow microfluidic channel. This method appreciably minimizes interferences by incorporating a nonspecific polymer inclusion membrane (PIM) based assay with a "dot-counting" approach to quantification. In this study, hydrophobic polycaprolactone (PCL)-filled glass microfiber (GMF) membranes were used as the base substrate onto which the PIM was evenly dispensed as an array of dots. The devices thus prepared were then selectively exposed to oxygen radicals through a mask to generate a hydrophilic surface path along which the sample was wicked. Using this approach, copper concentrations from 1 to 20 ppm were quantified from 5 MUL samples using only visual observation of the assay device. PMID- 29333860 TI - Copper(II)-Mediated ortho-Selective C(sp2)-H Tandem Alkynylation/Annulation and ortho-Hydroxylation of Anilides with 2-Aminophenyl-1H-pyrazole as a Directing Group. AB - 2-Aminophenyl-1H-pyrazole has been identified as a viable directing group to promote copper(II)-mediated ortho-selective sp2 C-H bond tandem alkynylation/annulation of anilides with terminal alkynes to offer arylmethylene isoindolinones. Meanwhile, copper(II)-mediated ortho-selective sp2 C-H hydroxylation of anilides has also been optimized as the major reaction pathway by using Cu(OAc)2 as the promoter and 1,1,3,3-tetramethylguanidine as an organic base. Recovery of the directing group was achieved by hydrazinolysis for arylmethylene isoindolinones and basic hydrolysis for the hydroxylation products. PMID- 29333861 TI - Intra- and inter-observer agreement in the visual interpretation of interim 18F FDG PET/CT in malignant lymphoma: influence of clinical information. AB - Background Interim PET/CT is widely performed in lymphoma patients in clinical practice and clinical trials. Visual assessment using a 5-point scale is proposed for PET/CT interpretation, but intra- and inter-observer variation is not fully investigated. Purpose To investigate intra- and inter-observer variations in the reporting of interim positron emission tomography/computed tomography (PET/CT) in lymphoma patients, and the influence of clinical information on the interpretation. Material and Methods Three expert readers from different institutions interpreted interim PET/CT images of 42 consecutive patients with malignant lymphoma twice, with and without clinical information. The intra- and inter-observer agreements were calculated using the kappa statistic on a patient and a region basis. Results On a patient basis, intra-observer agreement, inter observer agreement without information, and inter-observer agreement with information were within the ranges 0.48-0.62, 0.51-0.62, and 0.42-0.76, respectively. In the evaluation of lymph nodes, intra-observer agreement, inter observer agreement without information, and inter-observer agreement with information were within the ranges 0.78-0.92, 0.80-0.82, and 0.77-0.83, respectively. Observer agreements were in almost perfect to substantial agreement categories for most lymphatic organs, but were generally low for the other organs. Conclusion The intra- and inter-observer agreements in evaluating interim PET/CT were relatively low for extranodal lesions, but they were substantial to almost perfect when interpreting nodal regions in malignant lymphoma, irrespective of the provision of clinical information, although memory at the first interpretation might have affected the intra-observer results. PMID- 29333862 TI - Pharmacokinetic determination and analysis of nortriptyline based on GC-MS coupled with hollow-fiber drop-to-drop solvent microextraction technique. AB - AIM: A simple, sensitive and robust technique of hollow-fiber drop-to-drop solvent microextraction coupled with GC-MS has been successfully developed for the detection of antidepressant drug nortriptyline in human blood and urine samples. The recoveries of the drug from the spiked samples are found to be well within the range and appropriate to support the method. RESULTS: The LOD for the drug was obtained to be 0.007, 0.009 and 0.021 MUg ml-1 in deionized water, urine and blood samples of human subjects, respectively. Linearity was obtained over the concentration range of 0.5-5.0 mg l-1 in deionized water with correlation coefficient 0.99672. PMID- 29333863 TI - Principles of vaccine potency assays. AB - Compared with biologics, vaccine potency assays represent a special challenge due to their unique compositions, multivalency, long life cycles and global distribution. Historically, vaccines were released using in vivo potency assays requiring immunization of dozens of animals. Modern vaccines use a variety of newer analytical tools including biochemical, cell-based and immunochemical methods to measure potency. The choice of analytics largely depends on the mechanism of action and ability to ensure lot-to-lot consistency. Live vaccines often require cell-based assays to ensure infectivity, whereas recombinant vaccine potency can be reliably monitored with immunoassays. Several case studies are presented to demonstrate the relationship between mechanism of action and potency assay. A high-level decision tree is presented to assist with assay selection. PMID- 29333864 TI - Non-digestible carbohydrates in infant formula as substitution for human milk oligosaccharide functions: Effects on microbiota and gut maturation. AB - Human milk (HM) is the golden standard for nutrition of newborn infants. Human milk oligosaccharides (HMOs) are abundantly present in HM and exert multiple beneficial functions, such as support of colonization of the gut microbiota, reduction of pathogenic infections and support of immune development. HMO composition is during lactation continuously adapted by the mother to accommodate the needs of the neonate. Unfortunately, for many valid reasons not all neonates can be fed with HM and are either totally or partly fed with cow-milk derived infant formulas, which do not contain HMOs. These cow-milk formulas are supplemented with non-digestible carbohydrates (NDCs) that have functional effects similar to that of some HMOs, since production of synthetic HMOs is challenging and still very expensive. However, NDCs cannot substitute all HMO functions. More efficacious NDCs may be developed and customized for specific groups of neonates such as pre-matures and allergy prone infants. Here current knowledge of HMO functions in the neonate in view of possible replacement of HMOs by NDCs in infant formulas is reviewed. Furthermore, methods to expedite identification of suitable NDCs and structure/function relationships are reviewed as in vivo studies in babies are impossible. PMID- 29333865 TI - Parental supervision and discomfort with children walking to school in low-income communities in Cape Town, South Africa. AB - OBJECTIVE: The risk of pedestrian injury is compounded for children living in low income communities due to factors such as poor road and pedestrian infrastructure, reliance on walking as a means of transport, and compromised supervision. Parents play an important role in child pedestrian safety. The primary objective of this study was to examine the effects of child pedestrian variables on parental discomfort with regard to letting their child walk to and from school and on the frequency of adult supervision. METHODS: A cross-sectional study was conducted using a convenience sample from 3 schools participating in a pedestrian safety school initiative. The schools are situated in low-income, high risk communities in the City of Cape Town. A parent survey form was translated into isiXhosa and sent home with learners to those parents who had consented to participate. The response rate was 70.4%, and only parents of children who walk to and from school were included in the final sample (n = 359). Child pedestrian variables include the time taken to walk to school, parental rating of the child's ability to safely cross the road, and the frequency of adult supervision. RESULTS: More than half of parents reported that their child walked to and from school without adult supervision. About 56% of children took less than 20 min to walk to school. Most parents (61%) were uncomfortable with their child walking to school, although the majority of parents (55.7%) rated their child's ability to cross the road safely as better or significantly better than average (compared to peers). The parents did not perceive any differences in pedestrian risk factors between boys and girls or between younger (6-9 years) and older (10-15 years) children. The time spent by a child walking to school and parents' perceptions of their child's road-crossing ability were found to be significant predictors of parental discomfort (in letting their child walk). Younger children and children who spent less time walking were more likely to be supervised by an adult. CONCLUSIONS: Many South African schoolchildren have to navigate the roads without adult supervision from a young age. Caregivers, especially in low-income settings, often have limited options with regard to getting their child to school safely. Regardless of the child's age and gender, the time that they spend on the roads is an important factor for parents in terms of pedestrian safety. PMID- 29333867 TI - What is the meaning of filial piety for people with dementia and their family caregivers in China under the current social transitions? An interpretative phenomenological analysis. AB - The filial piety model of family centred care has dominated Chinese society for thousands of years. The ways in which filial piety is presented are being modified and modernised as China undergoes social transitions. The study aims to understand the meaning of filial piety for people with dementia and family caregivers. Semi-structured interviews with people with dementia ( n = 10) and family caregivers ( n = 14) were conducted. Data were analysed using interpretative phenomenological analysis. Three themes emerged: (a) 'Being filial is a cultural continuity and my future investment'. (b) 'The changed perception and ways of being filial'. (c) 'Filial responsibility is a social and cultural convention, but not my personal choice'. This study highlights the importance of cultural values in family care decision making and in shaping filial responsibilities. It indicates that filial obligation can be maintained through social support, even though the nature of filial piety has been changed by social transitions. PMID- 29333866 TI - Offline derivatization LC-MS/MS method for simultaneous estimation of vanillin and vanillic acid in guinea pig plasma. AB - AIM: Vanillin used as a positive control substrate of aldehyde oxidase activity gets metabolized to vanillic acid. Low MW and low sensitivity in negative ion mode are challenges with these analytes. Our objective was to develop a simple offline derivatization LC-MS/MS method to address these challenges. METHODOLOGY/RESULTS: A simple dansyl chloride derivatization of the phenolic groups on vanillin and vanillic acid was adopted to enable easy ionization in commonly used acidic mobile phases. Calibration curves were linear over the concentrations of 4.88-1250 nM with an LLOQ of 0.64 fmoles on column for both analytes. CONCLUSION: The qualified method was successfully applied to simultaneously measure vanillin and vanillic acid in plasma and urine from a guinea pig pharmacokinetic study. PMID- 29333868 TI - Drug detection in biological specimens: recent colorimetric methods. PMID- 29333869 TI - Quantitation of saxitoxin in human urine using immunocapture extraction and LC MS. AB - AIM: An immunomagnetic capture protocol for use with LC-MS was developed for the quantitation of saxitoxin (STX) in human urine. MATERIALS & METHODS: This method uses monoclonal antibodies coupled to magnetic beads. STX was certified reference material grade from National Research Council, Canada. Analysis was carried out using LC-MS. RESULTS: With an extraction efficiency of 80%, accuracy and precision of 93.0-100.2% and 5.3-12.6%, respectively, and a dynamic range of 1.00 100 ng/ml, the method is well suited to quantify STX exposures based on previously reported cases. CONCLUSION: Compared with our previously published protocols, this method has improved selectivity, a fivefold increase in sensitivity and uses only a third of the sample volume. This method can diagnose future toxin exposures and may complement the shellfish monitoring programs worldwide. PMID- 29333870 TI - The effects of aerobic exercise for persons with migraine and co-existing tension type headache and neck pain. A randomized, controlled, clinical trial. AB - Aim To evaluate aerobic exercise in migraine and co-existing tension-type headache and neck pain. Methods Consecutively recruited persons with migraine and co-existing tension-type headache and neck pain were randomized into an exercise group or control group. Aerobic exercise consisted of bike/cross-trainer/brisk walking for 45 minutes, three times/week. Controls continued usual daily activities. Pain frequency, intensity, and duration; physical fitness, level of physical activity, well-being and ability to engage in daily activities were assessed at baseline, after treatment and at follow-up. Results Fifty-two persons completed the study. Significant between-group improvements for the exercise group were found for physical fitness, level of physical activity, migraine burden and the ability to engage in physical activity because of reduced impact of tension-type headache and neck pain. Within the exercise group, significant reduction was found for migraine frequency, pain intensity and duration, neck pain intensity, and burden of migraine; an increase in physical fitness and well being. Conclusions Exercise significantly reduced the burden of migraine and the ability to engage in physical activity because of reduced impact of tension-type headache and neck pain. Exercise also reduced migraine frequency, pain intensity and duration, although this was not significant compared to controls. These results emphasize the importance of regular aerobic exercise for reduction of migraine burden. PMID- 29333871 TI - Drug monitoring by volumetric absorptive microsampling: method development considerations to mitigate hematocrit effects. AB - AIM: GSKA is a compound that was in development in clinical trials. A bioanalysis method to quantify GSKA using volumetric absorptive microsampling (VAMS) was developed and hematocrit (HCT) related assay bias was investigated. METHODOLOGY: After accurate sampling of 10 MUl blood, VAMS tips were air dried approximately 18 h and desorbed by an aqueous solution containing internal standard. The recovered blood underwent liquid-liquid extraction in ethyl acetate to minimize matrix suppression. Assay accuracy, precision, linearity, carryover, selectivity, recovery, matrix effects, HCT effects and long-term quality control stability were evaluated. CONCLUSION: HCT-related assay bias was minimized in 30-60% blood HCT range, and all validation parameters met acceptance criteria. The method is suitable for quantitative analysis of GSKA in human blood. PMID- 29333872 TI - Effects and underlying mechanisms of unstable shoes on chronic low back pain: a randomized controlled trial. AB - OBJECTIVE: To investigate the effects that wearing unstable shoes has on disability, trunk muscle activity, and lumbar spine range of motion (ROM) in patients with chronic lower back pain (CLBP). DESIGN: Randomized controlled trial. SETTING: Orthopedic Surgery Service. PARTICIPANTS: We randomized 40 adults with nonspecific CLBP either to an unstable shoes group ( n = 20) or to the control group ( n = 20). INTERVENTION: The participants in the unstable shoes group were advised to wear these shoes for a minimum of six hours a day for four weeks. Control group participants were asked to continue wearing their regular shoes. OUTCOME MEASURES: Our primary outcome was measurement of back-related dysfunction, assessed using the Roland-Morris Disability Questionnaire. Secondary outcomes included changes in electromyographic (EMG) activity of erector spinae (ES), rectus abdominis (RA), internus obliquus (IO), and externus obliquus (EO) muscles, and changes in lumbar spine ROM. RESULTS: Between-group analysis highlighted a significant decrease in disability in the unstable shoes group compared to the control (-5, 95% confidence interval (CI) = -8.4 to -1.6). Our results revealed a significant increase in the percentage of RA, ES, IO, and EO EMG activity and in lumbar spine ROM in the unstable shoes group compared to the control group. Moreover, our results showed a significant negative correlation between disability and the percentage of ES, RA, and IO muscle activity at the end of the intervention. CONCLUSION: This study shows that the use of unstable shoes contributes to improvements in disability, which are likely related to increased trunk muscle activity and lumbar spine ROM. PMID- 29333873 TI - Survey regarding the 0.05 blood alcohol concentration limit for driving in the United States. AB - BACKGROUND: On May 14, 2013, the National Transportation Safety Board (NTSB) proposed that states lower the blood alcohol concentration (BAC) illegal limit from 0.08 to 0.05 g/dL (also referred to as the 0.08 law and the 0.05 limit, respectively). In March 2017, this recommendation was signed into law in the State of Utah. OBJECTIVE: The objective of this survey is to investigate perceptions regarding enforcement of the 0.05 g/dL BAC limit. METHOD: Opinions of law enforcement officers, prosecutors, and defense attorneys were obtained through a series of questionnaires and focus groups. RESULTS: Survey data were collected from 32 law enforcement officers, 20 prosecutors, and 4 defense attorneys. The participants rated the usefulness of the NHTSA's driving while intoxicated (DWI) driving cues lower for the 0.05 limit than for the 0.08 law. Some of the participants believed that training would be needed in regard to sobriety testing under the 0.05 limit. Participants also stated that adequately preparing for prosecution of drunk drivers would be more difficult under the 0.05 limit. In addition, it was believed that drunk driving cases are more likely to be withdrawn and fewer plea agreements and guilty pleas are likely under the 0.05 limit. Prosecutors were concerned that the 0.05 limit would result in poorly investigated cases and overburden the court system. Defense attorneys were concerned about the social and economic costs of a 0.05 limit. DISCUSSION: Overall, it appears that the 0.05 limit is viewed as enforceable and it will save lives; however, the usefulness of the NHTSA DWI Detection Guide and of the standardized field sobriety tests need to be established for lower BACs, and efforts must be made to educate people regarding the relationship between BAC and impairment and impairment and driving with the risk of injury and death. CONCLUSION: Though the 0.05 limit offers promise in saving lives, the following issues associated with changing the limit to 0.05 need to be resolved prior to implementation: Validating the sobriety tests for the 0.05 limit; if needed, modifying the sobriety tests to make them effective and valid at the 0.05 limit; and training law enforcement personnel and educating the public regarding the 0.05 limit. PMID- 29333874 TI - Road traffic injuries among riders of electric bike/electric moped in southern China. AB - OBJECTIVE: Electric bike/moped-related road traffic injuries have become a burgeoning public health problem in China. The objective of this study was to identify the prevalence and potential risk factors of electric bike/moped-related road traffic injuries among electric bike/moped riders in southern China. METHODS: A cross-sectional study was used to interview 3,151 electric bike/moped riders in southern China. Electric bike/moped-related road traffic injuries that occurred from July 2014 to June 2015 were investigated. Data were collected by face-to-face interviews and analyzed between July 2015 and June 2017. RESULTS: The prevalence of electric bike/moped-related road traffic injuries among the investigated riders was 15.99%. Electric bike/moped-related road traffic injuries were significantly associated with category of electric bike (adjusted odds ratio [AOR] = 1.36, 95% confidence interval [CI], 1.01-1.82), self-reported confusion (AOR = 1.77, 95% CI, 1.13-2.78), history of crashes (AOR = 6.14, 95% CI, 4.68 8.07), running red lights (AOR = 3.57, 95% CI, 2.42-5.25), carrying children while riding (AOR = 1.96, 95% CI, 1.37-2.85), carrying adults while riding (AOR = 1.68, 95% CI, 1.23-2.28), riding in the motor lane (AOR = 2.42, 95% CI, 1.05 3.93), and riding in the wrong traffic direction (AOR = 1.63, 95% CI, 1.13-2.35). In over 77.58% of electric bike/moped-related road traffic crashes, riders were determined by the police to be responsible for the crash. Major crash-causing factors included violating traffic signals or signs, careless riding, speeding, and riding in the wrong lane. CONCLUSION: Traffic safety related to electric bikes/moped is becoming more problematic with growing popularity compared with other 2-wheeled vehicles. Programs need to be developed to prevent electric bike/moped-related road traffic injuries in this emerging country. PMID- 29333876 TI - Figuring It Out: How Late Adolescent and Young Adult Men and Women Perceive and Address Problems in Sexual Functioning. AB - Although there are high rates of sexual problems and sexual dysfunction in adulthood (Mitchell et al., 2013), little is known about the circumstances under which problems are first experienced. A growing body of research addresses prevalence of problems in sexual functioning among adolescents and young adults, yet little is known about the meanings that young people give to these experiences or how they deal with them. We used content analysis of qualitative interviews with 53 heterosexual, sexually active Canadian adolescents (ages 18 to 21) to explore their perceptions of the sexual problems in functioning they had experienced and the strategies (if any) they used to address them over time. Problems among most young people originated early in their partnered sexual life. Figuring it out emerged as an intentional process directed toward improving sexual experiences, although certainly not all young people were successful. Strategies for figuring it out included informational or material help seeking, experimentation to inform future actions, mutual sharing and problem solving, and building emotional connection to improve sexual functioning. Implications for understanding the development of sexual dysfunctions in adulthood are discussed. PMID- 29333875 TI - Ultrafast determination of vitamin E using LC-ESI-MS/MS for preclinical development of new nutraceutical formulations. AB - AIM: We proposed a rapid and high quality method to determine alpha-tocopherol (alpha-T) in different biopharmaceutical samples using liquid chromatography diode array detector on-line ESI-MS/MS. MATERIALS & METHODS: A working standard solution of alpha-T and internal standard, phenyl-5,7-dimethyl-d6-alpha tocopherol, were used for optimization and validation of the method. Levels of alpha-T in nanoemulsions, serum and plasma samples were evaluated. RESULTS & CONCLUSION: Precision (1% for retention time, 5% for peak area and 3% for relative peak area), linearity range (among 0.625-20.0 MUg ml-1), LOD and LOQ, accuracy and matrix effect were studied. The validated chromatographic method is presented as valuable analytical tool for the determination of alpha-tocopherol in loaded drug delivery systems and in biodistribution levels in blood samples. PMID- 29333877 TI - What Behaviors Do Young Heterosexual Australians See in Pornography? A Cross Sectional Study. AB - This study investigated how frequently a group of young heterosexual Australians (ages 15 to 29) saw a range of behaviors represented in pornography over the previous 12 months. Participants were recruited to an anonymous online survey. Those who reported having viewed pornography in the past 12 months (n = 517) indicated how frequently they saw each of a list of 17 behaviors when they watched pornography in the past 12 months. Men's pleasure (83%) was seen frequently by the highest proportion of young people surveyed, followed by a man being portrayed as dominant (70%). Women were more likely to report frequently seeing violence toward a woman (p < 0.01). Men were more likely to report frequently seeing heterosexual anal sex (p < 0.01), ejaculation onto a woman's face (p < 0.01), women portrayed as dominant (p < 0.01), a man being called names or slurs (p < 0.01), and violence toward a man that appears consensual (p < 0.01). Younger age was significantly associated with frequently seeing women's pleasure (p < 0.05), violence toward women which appeared consensual, and all types of violence (p < 0.01). Older age was associated with frequently seeing men's pleasure (p < 0.01) and heterosexual anal sex (p < 0.05). Our findings draw attention to the gendered ways that behaviors in pornography are seen and identified by young heterosexual audiences. PMID- 29333878 TI - Glucagon receptor signalling - backwards and forwards. PMID- 29333879 TI - Negotiating the Interpretation of Depression Shared Among Kin. AB - Kinship processes contribute to the experience and interpretation of depression generating empathy as well as silencing. We explore intersubjective experiences of depression among kin with the aim of understanding how depression can reveal kinship expectations and evolving concepts of distress. In interviews with 28 low income rural Appalachian women about their depression, participants articulated depression as a social process that neither starts nor ends in themselves. Yet kinship obligations to recognize family members' depression limited women's ability to admit distress, let alone request care. The intersubjective experience of depression among kin can challenge the individual expression of distress. PMID- 29333881 TI - Reproductive Travel to Ghana: Testimonies, Transnational Relationships, and Stratified Reproduction. AB - In this article, I address reproductive travel to Ghana, based on research conducted in two private fertility clinics. Both clinics attract clients from West African countries as well as Ghanaian people living in the US and Europe. Their motivations to visit these clinics include positive "testimonies" about treatment results, "bioavailability" of matching donor material and surrogates, lower treatment costs and the circumvention of restricting regulations in the country of residence. Communication technologies are central in facilitating reproductive travel. Finally, I argue that the "international choreographies" of reproductive travel are co-shaped by the unique biographies and transnational relationships of the people involved. PMID- 29333882 TI - Vaginoplasty: What's New From 1946 to Date Commentary on: Vaginoplasty with Acellular Dermal Matrix after Radical Resection for Carcinoma of the Uterine Cervix. PMID- 29333880 TI - Pharmacogenetic analysis of opioid dependence treatment dose and dropout rate. AB - BACKGROUND: Currently, no pharmacogenetic tests for selecting an opioid dependence pharmacotherapy have been approved by the US Food and Drug Administration. OBJECTIVES: Determine the effects of variants in 11 genes on dropout rate and dose in patients receiving methadone or buprenorphine/naloxone (ClinicalTrials.gov Identifier: NCT00315341). METHODS: Variants in six pharmacokinetic genes (CYP1A2, CYP2B6, CYP2C19, CYP2C9, CYP2D6, CYP3A4) and five pharmacodynamic genes (HTR2A, OPRM1, ADRA2A, COMT, SLC6A4) were genotyped in samples from a 24-week, randomized, open-label trial of methadone and buprenorphine/naloxone for the treatment of opioid dependence (n = 764; 68.7% male). Genotypes were then used to determine the metabolism phenotype for each pharmacokinetic gene. Phenotypes or genotypes for each gene were analyzed for association with dropout rate and mean dose. RESULTS: Genotype for 5-HTTLPR in the SLC6A4 gene was nominally associated with dropout rate when the methadone and buprenorphine/naloxone groups were combined. When the most significant variants associated with dropout rate were analyzed using pairwise analyses, SLC6A4 (5 HTTLPR) and COMT (Val158Met; rs4860) had nominally significant associations with dropout rate in methadone patients. None of the genes analyzed in the study was associated with mean dose of methadone or buprenorphine/naloxone. CONCLUSIONS: This study suggests that functional polymorphisms related to synaptic dopamine or serotonin levels may predict dropout rates during methadone treatment. Patients with the S/S genotype at 5-HTTLPR in SLC6A4 or the Val/Val genotype at Val158Met in COMT may require additional treatment to improve their chances of completing addiction treatment. Replication in other methadone patient populations will be necessary to ensure the validity of these findings. PMID- 29333883 TI - Simultaneous Intestinal and Kidney Transplantation in Adults. AB - AIM OF THE STUDY: Intestinal transplantation (IT) is a life-saving procedure for carefully selected patients with intestinal failure. We evaluated patients who had undergone simultaneous intestinal and kidney transplantation (SIKT) to determine whether UK guidelines for inclusion of a renal allograft (dialysis dependent or estimated glomerular filtration rate ((eGFR)) < 45 ml/min/1.73 m2) are justified. METHODS: A single centre analysis was undertaken of adults undergoing IT at the Cambridge Transplant Centre between December 2007 and January 2016. A prospectively maintained database was used to identify SIKT recipients and determine outcomes. RESULTS: Over this period, 63 intestinal transplants were performed. Seven (11.1%) recipients received a SIKT. Five were pre-dialysis (median eGFR 29 ml/min/1.73 m2, range 16-36 ml/min/1.73 m2). One recipient was on dialysis, and one needed bilateral nephrectomy at transplant. There were no primary kidney allograft failures and at three months, the median eGFR (55 ml/min/1.73 m2 range 39-124) was similar to recipients of IT alone (median eGFR 56 ml/min/1.73 m2 range 17-143 ml/min/1.73 m2). Two recipients required dialysis due to sepsis related kidney injury and died from multi-organ failure (20 and 63 months). Two died with a functioning renal transplant (10 and 15 months). The remaining three patients are alive at follow up (12-96 months) with an eGFR of 20-45 ml/min/1.73 m2. CONCLUSION: Patients with significant renal impairment (eGFR <45 ml/min/1.73 m2), and receiving dialysis may benefit from SIKT. Patient survival and renal function are broadly comparable to those undergoing IT alone. Further studies are required to justify allocation of a kidney to this complex high risk group. PMID- 29333884 TI - Use of tidal breathing curves for evaluating expiratory airway obstruction in infants. AB - OBJECTIVE: To evaluate tidal breathing (TB) flow-volume and flow-time curves for identification of expiratory airway obstruction in infants. METHODS: Pulmonary function tests were analyzed retrospectively in 156 infants aged 3-24 months with persistent or recurrent respiratory complaints. Parameters derived from TB curves were compared to maximal expiratory flow at functional residual capacity ([Formula: see text]maxFRC) measured by rapid thoracoabdominal compression technique. Analyzed parameters were: inspiratory time (tI), expiratory time (tE), tidal volume, peak tidal expiratory flow (PTEF), time to peak tidal expiratory flow (tPTEF), expiratory flow when 50% and 25% of tidal volume remains in the lungs (FEF50, FEF25, respectively), and the ratios tPTEF/tE, tI/tE, FEF50/PTEF, and FEF25/PTEF. Statistical comparisons between flow indices and TB parameters were performed using mean squared error and Pearson's sample correlation coefficient. The study population was also divided into two groups based on severity of expiratory obstruction (above or below z-score for [Formula: see text]maxFRC of -2) to generate receiver operating characteristic (ROC) curves and calculate discriminatory values between the groups. RESULTS: TB parameters that were best correlated to [Formula: see text]maxFRC were: tPTEF/tE, FEF50/PTEF, and FEF25/PTEF, with r = 0.61, 0.67, 0.65, respectively (p < 0.0001 for all). ROC curves for FEF50/PTEF, FEF25/PTEF and tPTEF/tE showed areas under the curve of 0.813, 0.797, and 0.796, respectively. Cutoff value z-scores of -0.35, -0.34, and -0.43 for these three parameters, respectively, showed an 86% negative predictive value for severe airway obstructions. CONCLUSION: TB curves can assist in ruling out severe expiratory airway obstruction in infants. PMID- 29333885 TI - When biomarkers define a drug indication. PMID- 29333887 TI - Physical and Psychological Abuse among Seropositive African American MSM 50 Aged Years and Older. AB - Little is known about abuse experienced among African American men who have sex with men (MSM) who are 50 years and older. A series of focus groups were conducted to examine perspectives of seropositive African American MSM age 50 years and older who reported experiencing some form of psychological or physical abuse. Thirty African American MSM were divided into four focus groups and four themes emerged: "Fear Being Gay," "No One Else to Love Me," "Nowhere to Turn," and "Sexual Risk & Control." The data suggest there is a need to develop culturally tailored interventions for this population. PMID- 29333886 TI - Anaemia worsens early functional outcome after traumatic brain injury: a preliminary study. AB - OBJECTIVE: To determine early effects on outcome from traumatic brain injury (TBI) induced by controlled cortical impact (CCI) associated with anaemia in mice. HYPOTHESIS: Outcome from TBI with concomitant anaemia would be worse than TBI without anaemia. METHODS: CCI was induced with electromagnetic impaction in four groups of C57BL/6J mice: sham, sham+anaemia; TBI; and TBI+anaemia. Anaemia was created by withdrawal of 30% of calculated intravascular blood volume and saline replacement of equal volume. Functional outcome was assessed by beam walking test and open field test (after pre-injury training) on post-injury days 3 and 7. After functional assessment, brains removed from sacrificed animals were pathological reviewed with haematoxylin and eosin, cresyl violet, Luxol Fast Blue, and IBA-1 immunostains. RESULTS: Beam-walking was similar between animals with TBI and TBI+anaemia (p = 0.9). In open field test, animals with TBI+anaemia walked less distance than TBI alone or sham animals on days 3 (p < 0.001) and 7 (p < 0.05), indicating less exploratory and locomotion behaviours. No specific pathologic differences could be identified. CONCLUSIONS: Anaemia associated with TBI from CCI is associated with worse outcome as measured by less distance travelled in the open field test at three days than if anaemia is not present. PMID- 29333888 TI - Primary Diffuse Large B-Cell Lymphoma of the Ciliary Body. AB - PURPOSE: To report an unusual case of an eye with primary ciliary body lymphoma which came to enucleation allowing detailed histopathological examination. METHODS: A 50-year-old man presented with a painful loss of vision in the left eye. The clinical, imaging, and immunohistopathological features of this case were reviewed. RESULTS: The vision in the left eye was light perception. There were keratic precipitates, an irregular and thickened iris with neovascularization. Imaging studies disclosed a ciliary body mass extending into the anterior chamber. The eye was enucleated and immunohistopathological examination showed positive staining with CD20, BCL-2, MUM1, and CD10. Staining with BCL-6 was weak and S100 and HMB45 expressions were negative. Occasional CD3+ reactive T cells were present. The Ki-67 index was 80-90%. All these results suggested diffuse large B-cell lymphoma. CONCLUSIONS: Diffuse large B-cell lymphoma may primarily arise from the ciliary body and can develop without systemic or central nervous system disease. PMID- 29333889 TI - Risking It Anyway: An Adolescent Case Study of Trauma, Sexual and Gender Identities, and Relationality. AB - This article presents the case of a Chinese-American adolescent with a significant trauma history who was questioning her sexual and gender identities. The implications of the client's intersecting identities for case conceptualization and treatment are considered within the framework of affirmative practices for sexual and gender minority (SGM) clients. The impacts of stress and trauma on this client's experiences-and SGM clients more broadly are also considered, particularly with respect to how this client understood and negotiated her experiences of relational trauma. This case is intended to illustrate some best practices with SGM clients within an intersectional framework which underscores the importance of multiple salient cultural identities. PMID- 29333891 TI - Therapeutic Potential of Zataria multiflora Boiss in Treatment of Irritable Bowel Syndrome (IBS). AB - Irritable Bowel syndrome (IBS), the most common chronic functional gastrointestinal disorder, is categorized as IBS-C and IBS-D, which are equivalent to Ghoolenj Rihi and Maghs Rihi in Iranian traditional medicine. One of the main applications of Zataria multiflora Boiss in traditional medicine is its efficacy in the gastrointestinal tract with symptoms such as IBS. The aim of this study was to evaluate the efficacy of Zataria multiflora essential oil in management of IBS. We used all the accessible references (electronic and published books, theses, and reports) to write this article. The results of our investigation show that the majority of gas chromatography-mass spectrometry (GC MS) analyses exhibited carvacrol and thymol as the main components of Zataria multiflora essential oil, and 60 drops oral daily dose of Z. multiflora essential oil (2%) can relieve the symptoms of IBS without any adverse effects. The pharmacological studies confirmed the analgesic, anti-inflammatory, antispasm and antiulcer effects of Z. multiflora essential oils and main components. According to the results of studies, oral Z. multiflora essential oil (2%) is a good candidate for management of IBS, but more studies are required to better understand its efficacies. PMID- 29333890 TI - Cigarette smoking and quit attempts among Latinos in substance use disorder treatment. AB - BACKGROUND: Differences in tobacco use behaviors have been identified between Latinos and non-Latino whites in the general US population. Little is known about cigarette smoking and quitting behaviors of Latinos in treatment for substance use disorders (SUDs), who represent two major tobacco-vulnerable groups. OBJECTIVES: To compare, in a national sample of persons enrolled in SUD treatment, demographic, drug use, and smoking and quitting prevalence and behaviors between Latinos and non-Latino whites. METHODS: We surveyed 777 SUD treatment clients, sampled from 24 clinics selected at random from the National Institute on Drug Abuse Clinical Trials Network (Latino client n = 141; 40% female). We then conducted univariate and multivariate analyses to identify correlates of smoking behaviors by Latino/non-Latino white ethnicity. RESULTS: Latinos' smoking prevalence resembled that of non-Latino whites (78.7% vs. 77.4%). In regression analyses, Latino smokers (n = 111) tended to smoke fewer cigarettes per day (CPD) than non-Latino white smokers (n = 492); were more often nondaily smokers and menthol smokers; more often reported a smoking quit attempt in the last year; and tended to report higher numbers of past-year quit attempts. Among Latino smokers, those with less education and those reporting opioids as their primary drug of use reported higher CPD. CONCLUSIONS: Latinos in SUD treatment are at equally high risk of being current heavy smokers as compared to non-Latino whites in SUD treatment. At the same time, Latinos in SUD treatment exhibit ethnic-specific smoking and quitting behaviors that should be considered when designing smoking interventions for this group. PMID- 29333892 TI - Education Needs of Families of Transgender Young People: A Narrative Review of International Literature. AB - Education plays a crucial role in the lives of families of transgender young people and mental healthcare practitioners are well-placed to support families in this regard. This paper reports findings from a narrative review of 31 papers that explored the education needs of families of transgender young people. The emergent themes were synthesised to develop a five-stage model that depicts the role of education in the lives of these families. Key themes included: (i) learning that a family member is trans; (ii) family responses; (iii) accessing education and information; (iv) impact on the individual; and (iv) moving beyond the individual. The key implications for mental health practitioners, families, and future research are discussed. PMID- 29333893 TI - Syringe Administration of Epinephrine by Emergency Medical Technicians for Anaphylaxis. AB - OBJECTIVE: In recent years, the costs of epinephrine autoinjectors (EAIs) in the United States have risen substantially. King County Emergency Medical Services implemented the "Check and Inject" program to replace EAIs by teaching emergency medical technicians (EMTs) to manually aspirate epinephrine from a single-use 1 mg/mL epinephrine vial using a needle and syringe followed by prehospital intramuscular administration of the correct adult or pediatric dose of epinephrine for anaphylaxis or serious allergic reaction. Treatment was guided by an EMT protocol that required a trigger and symptoms. We sought to determine if the "Check and Inject" program was safely implemented by EMTs treating presumed prehospital anaphylaxis or serious allergic reaction. METHODS: We conducted a prospective investigation of all cases treated as part of the "Check and Inject" program from July 2014 through December 2016 in suburban King County, Washington, and January 2016 through December 2016 within the city of Seattle. All cases were prospectively collected using a custom quality improvement data form completed by the first responding EMTs. Two physicians completed a structured review of each EMS medical record to determine if the EMTs followed the Check and Inject protocol and determine if epinephrine was clinically-indicated based on physician review. RESULTS: Of the 411 cases eligible for analysis, EMTs followed the protocol appropriately in 367 (89.3%) cases. In the remaining 44 (10.7%) cases, the EMS incident report form failed to document either a clear inciting allergic trigger or an appropriate symptom from the protocol list. Physician review determined that epinephrine was clinically indicated in 36 of the 44 cases. Among the remaining 8 cases (1.9%) that did not meet protocol criteria and were not clinically-indicated based on physician review, none had a documented adverse reaction to the epinephrine. CONCLUSION: We observed that EMTs successfully implemented the manual "Check and Inject" program for severe allergic reactions and anaphylaxis in a manner that typically agreed with physician review and without any overt identified safety issues. PMID- 29333895 TI - Childhood Adversity and Hazardous Drinking: The Mediating Role of Attachment Insecurity. AB - BACKGROUND: Harmful alcohol use is associated with disease and mortality. Identifying new determinants of harmful drinking may aid the 16.3 million adults who have alcohol use disorders. Childhood adversity is associated with alcohol use, but is not amenable to change. Attachment insecurity (anxiety and avoidance) may be associated with alcohol use and may be a target for modification or used to personalize interventions. OBJECTIVES: This study aims to (a) identify the association between attachment insecurity and harmful drinking, (b) determine if attachment insecurity may mediate between childhood adversity and harmful drinking, and (c) test sex as a moderator between attachment insecurity and harmful drinking in the mediation relationship. METHODS: Adult primary care patients (N = 348, 60% women) completed a cross-sectional survey study using validated measures in 2012. Statistical analyses were performed using Hayes's PROCESS macro in SPSS. RESULTS: Childhood adversity was reported by 61% of the cohort and 18% endorsed harmful drinking. Attachment anxiety was associated with harmful drinking (p >.001), but attachment avoidance was not (p =.11). Attachment anxiety may mediate between childhood adversity and harmful drinking (95% CI:.03 .14). Sex did not moderate the relationships between attachment anxiety and harmful drinking in the mediation relationship (women: 95% CI:.031-.179; men: 95% CI:.003.-.182). Conclusions/Importance: Attachment anxiety may mediate between childhood adversity and harmful drinking in both men and women. Attachment anxiety may be a potential therapeutic target for people with a history of childhood adversity. PMID- 29333896 TI - Cataract Surgery in HIV Seropositive Patients: Long-Term Follow-Up. AB - PURPOSE: To study epidemiology and clinical findings of cataract in HIV+ patients. METHODS: A total of 32 HIV+ patients, 11 with uveitis/retinitis before surgery and 21 without, mean follow-up 44.9 +/- 36.6 months, and 114 HIV- patients, 57 with uveitis/retinitis before surgery and 57 without, were retrospectively compared. RESULTS: Visual acuity improved in all HIV+ patients (p < 0.001), who were younger (p = 0.01) and more frequently males (p = 0.027). HIV+ patients with uveitis prior surgery improved less (p = 0.046) than HIV- (p < 0.001); their anterior chamber inflammation was similar to baseline. Male sex (p = 0.005), younger age (p < 0.001), dyslipidaemia (p = 0.058), HBV+ (p = 0.037), and unilateral cataract (p = 0.001) were more frequent in HIV+ patients with senile cataract, but they showed the same postoperative course as HIV- patients. CONCLUSION: Cataract surgery in HIV+ patients is safe and effective. Uveitis prior to surgery did not significantly affect the postoperative course. Systemic comorbidities are more frequent in HIV+ patients with senile cataract than in HIV subjects. PMID- 29333897 TI - Adherence to the American Diabetes Association retinal screening guidelines for population with diabetes in the United States. AB - PURPOSE: (1) To assess long-term adherence to American Diabetes Association guideline-recommended retinal screening among population with diabetes in the United States. (2) To determine factors associated with long-term adherence to routine eye screening exams. METHODS: A retrospective cohort study was conducted in adult patients with diabetes identified from January 2009 to December 2010. Patients were followed until disenrollment, death, or study end date (December 2013). A patient was defined as adherent when having at least one exam in each 12 month period if there was evidence of retinopathy, or at least one exam in each 24-month period if there was no evidence of retinopathy. Multivariate logistic regressions were used to investigate patient demographics and other baseline characteristics associated with adherence to guidelines. RESULTS: A total of 204,073 patients were identified; the mean age (SD) was 61 (13) years and 48% were female. Overall, 71.1% were adherent to the retinal screening guidelines during a median of 4.8 years of follow-up including 27.7% who received an eye exam every year. Patient socioeconomic status (younger age, black race, lower income/education), less comorbidity, insulin use, higher specialist copayment plans, and proxies for poor patient behavior (lower adherence to the oral hypoglycemic agents, less diabetes education, hemoglobin A1C >9%) were associated with nonadherence to routine eye screening exams. CONCLUSION: During nearly 5 years of follow-up, 28.9% of patients with diabetes were nonadherent to the retinal screening guidelines. Future research should focus on the development of interventions to address modifiable factors associated with nonadherence. PMID- 29333898 TI - The Physical Health of Individuals Receiving Antipsychotic Medication: A Qualitative Inquiry on Experiences and Needs. AB - Individuals with a mental illness are reported to have a reduced life expectancy and a greater risk of being affected by preventable physical illnesses such as cardiovascular disease and Type 2 diabetes. This inquiry sought to identify the physical health beliefs, experiences and needs of individuals with mental health problems in receipt of antipsychotic medication who live in the community. A qualitative inquiry was undertaken using three focus groups in a community mental health service in Ireland with 21 participants with mental health problems who were treated with antipsychotic medication. The participants were clear about the importance of good physical health as well as good mental health. They disliked the adverse effects of antipsychotic medication and experienced many barriers in accessing general practitioners/primary care services. They also preferred to receive health advice and self-management advice from the mental health services. The participants in this study were aware of the need to engage in health protective behaviours but were often overwhelmed by their comorbid health issues and the organizational and communication barriers in accessing their general practitioners. PMID- 29333899 TI - Social Support and Mental Health in LGBTQ Adolescents: A review of the literature. AB - LGBTQ adolescents experience higher rates of mental health disorders than their heterosexual peers. The purpose of this systematic review of the literature was to examine studies evaluating social support and its effects on mental health in the LGBTQ adolescent population. Higher levels of social support were associated with positive self-esteem. Lack of social support (or low social support) was associated with higher levels of depression, anxiety, alcohol or drug misuse, risky sexual behaviors, shame, and low self-esteem. Interdisciplinary research teams from multiple and diverse professions could provide valuable insight supporting the development of inclusive and comprehensive interventions programs for this population. PMID- 29333900 TI - Stability of two anterior fixations for three-column injury in the lower cervical spine: biomechanical evaluation of anterior pedicle screw-plate fixation. AB - Objectives This study aimed to evaluate the stability of anterior pedicle screw plate (APSP) fixation and anterior vertebral body screw-plate (AVBSP) fixation for three-column injury in the lower cervical spine. Methods Six fresh-frozen human cadaveric specimens of the lower cervical spine were prepared. After measurement of the range of motion (ROM) in the intact state, the specimens were prepared as three-column injury models. The models were stabilized by AVBSP or APSP fixation. The ROM of the models in the two states was measured. The ROM in the two states was compared. Results The ROM of the intact state in all directions was significantly smaller than that of the AVBSP state and significantly larger than that of the APSP state. The ROM of the AVBSP state in all directions was significantly larger than that of the APSP state. Conclusions This study shows that APSP fixation can provide sufficient stability for three column injury in the lower cervical spine. The primary stability of our models using APSP fixation is superior to that of AVBSP fixation. These results suggest that APSP can be used for three-column injury in the lower cervical spine. PMID- 29333901 TI - HER2 positive bilateral metachronous primary breast carcinoma: A case report. AB - Human epidermal growth factor receptor 2 (HER2) positive is a unique molecular subtype of breast cancer (BC) characterized by high malignancy and poor prognosis. Bilateral primary breast cancer (BPBC) harboring HER2 gene amplification is available to be detected among the BC survivors due to the increasing use of anti-HER2 adjuvant therapy. However, owing to the paucity of cases reported, knowledge of treating HER2-positive BPBC patients including the clinical behavior, histopathologic characteristics, anti-HER2 therapeutic response and disease outcome are not fully understood. Here we report a case of its kind receiving nonstandardized treatment during adjuvant stage. Upon tumor recurrence with liver metastasis, she received trastuzumab combined with chemotherapy and reached a PFS of 14.5 months in first-line treatment. While maintained trastuzumab plus carboplatin as second-line treatment progressed promptly, re-treatment of trastuzumab after lapatinib administration in third line can still benefit the patient. The present case report delineates an anti HER2 path for a particular characterized patient, and also provides new evidence of trastuzumab re-usage after disease progression of prior anti-HER2 therapy. PMID- 29333902 TI - Patterns of NPS Use and Risk Reduction in Slovenia. AB - BACKGROUND: The following study presents factors influencing the decision to use/not to use new psychoactive substances (NPS), various patterns of NPS use, the problems experienced by users, and the methods for reducing the risks associated with NPS use. OBJECTIVES: The study seeks to provide an in-depth look into the characteristics of NPS use and support the planning of targeted interventions in the field of NPS. METHODS: The study involved 19 in-depth interviews carried out with 25 individuals divided into three subsamples in order to gain insight into the various experiences of NPS users. The interviews were conducted in Slovenia between December 2013 and October 2014. The sample was obtained by using the convenience sampling and snowball sampling methods. RESULTS: The main pattern of NPS use determined by the study concerned synthetic cathinones, specifically 3-MMC, with binge use spanning several days being a prominent feature. The main risks involving NPS use were: mixing various drugs, inappropriate dosing, lack of information prior to use, and the use of unknown substances. Several users spoke about effective strategies for reducing risks, such as obtaining information beforehand, using one's own implements and using only small quantities of unknown substances. Conclusions/Importance: The study revealed various factors based on which users decide to use NPS. Furthermore, users reported a number of problems resulting from NPS use, while risk reduction strategies are employed to a much lesser extent. Based on the results obtained, specific intervention efforts concerning NPS use and targeting specific groups of younger users were designed. PMID- 29333903 TI - The First Report of Relative Incidence of Inherited White Matter Disorders in an Asian Country Based on an Iranian Bioregistry System. AB - Childhood leukodystrophies are a fast-growing field of pediatric neurology practice. Epidemiologic studies on the incidence of these disorders in children show different results. This is the first report of childhood leukodystrophies incidence from Iran. The enrolled patients were recruited from the neurometabolic bioregistry system that was organized in 2010 in the Children's Medical Center, Tehran, Iran. Herein is reported the incidence rate of leukodystrophies in those patients who were residents of 2 big popular provinces near Iran's capital city Tehran, with an average child population of 2 988 800 children. Ninety cases of leukodystrophies from Tehran and Alborz provinces who were registered between 2010 and 2016 in the bioregistry system were enrolled in this study. The annual incidence of inherited white matter disorders was 3.01/100 000, the highest number compared with those found in other studies using similar methods throughout the world. One of the main cause of this higher incidence could be the higher number of consanguineous marriages in Iran. PMID- 29333904 TI - The biological treatment planning evolution of clinical fractionated radiotherapy using high LET. AB - Starting from the birth of high linear energy transfer (LET) radiotherapy in USA in the mid-1970s, the field has continuously evolved and to date over 20,000 patients have been treated with 12C ions worldwide. The purpose of this contribution is to review the advancements in clinical fractionated radiotherapy using high LET radiation in the last decades, with special focus on biological treatment planning. Along with technological developments for ion acceleration and beam delivery, progress in radiation biology and computational modeling has enabled a remarkable evolution in the planning capabilities of highly conformal, biologically optimized treatment with high LET radiation. In particular, recent efforts have provided the possibility of direct comparison between treatment plans obtained at different facilities with different biological models for the same ion species. This achievement represents an important step forward to gather better understanding of the remaining uncertainties in biological modeling and the impact of fractionation for optimal dose prescriptions, ultimately aiming to promote clinical exploitation of the anticipated, yet not fully demonstrated advantages of high LET-charged particles. PMID- 29333905 TI - Linear nevus sebaceous syndrome presenting as circumscribed choroidal hemangioma. AB - A 4-year-old female with a unilateral circumscribed choroidal hemangioma and secondary total exudative retinal detachment. A nasal skin scar-like lesion incised to confirm a histopathologic diagnosis of linear nevus sebaceous. Further imaging disclosed asymmetry of the lateral ventricle frontal horns, suggestive of the diagnosis of linear nevus sebaceous syndrome. The choroidal hemangioma was treated with I-125 episcleral brachytherapy (apical dose of 45 Gy). At 6 months post-radiation, the tumor showed regression with total resolution of exudative retinal detachment. PMID- 29333906 TI - TUBB1 variants and human platelet traits. PMID- 29333907 TI - Quantitative methods in interprofessional education research: some critical reflections and ideas to improving rigor. PMID- 29333908 TI - False positive acetylcholine receptor antibodies in a case of unilateral chronic progressive external ophthalmoplegia: case report and review of literature. AB - METHODS: We present a rare case with atypical presenting features of unilateral CPEO with a false positive Acetylcholine Receptor Antibody (AchRA) test resulting in diagnostic delay. We illustrate the unilateral nature of this case and demonstrate the caveats of performing myogenic ptosis correction in such patients. We also discuss the differential diagnosis of false positive AchRA, a test commonly performed in the investigation of ptosis. RESULTS: A 34-year old female presented with a more than 3-year history of slowly-progressive, unilateral, right-sided restriction in eye movements and ptosis. Clinical examination showed EOM were grossly restricted in the right eye with a ptosis and normal in the left eye. Serum AchRA was positive on serum enzyme-linked immunosorbent assay (ELISA) however, following two months of oral pyridostigmine therapy there were no signs of clinical improvement. The initial serum sample sent was retested for AchRA by radio-immunoassay (RIA) which came back negative. Subsequently a muscle biopsy was requested which showed the presence of ragged red fibres. CONCLUSION: Unilateral ptosis and ophthalmoplegia is an unusual presentation for CPEO which characteristically produces bilateral symmetrical motility defects. In addition to Myasthenia Gravis elevated AchRA levels have been reported in other autoimmune conditions such as Primary biliary cirrhosis, Eaton Lambert syndrome and Graves's ophthalmopathy. We also highlight the superiority of RIA versus ELISA in the detection of AchRA and illustrate the diagnostic challenge of investigating and managing myogenic ptosis in this complex cohort of patients. PMID- 29333909 TI - Subclinical Inflammatory Response: Accelerated versus Standard Corneal Cross Linking. AB - PURPOSE: To compare the subclinical inflammatory response (as measured by anterior chamber flare) induced after standard (3 mW/cm2, 30 min) and accelerated (18 mW/cm2, 5 min) corneal cross-linking (CXL). METHODS: In this comparative, non randomized study, patients with progressive keratoconus who underwent standard or accelerated CXL were studied. Laser flare photometery (FM-600; Kowa, Tokyo, Japan) was used to measure anterior chamber flare preoperatively and at 1 week, 1 month, 3 months, and 6 months after the procedure. RESULTS: Sixty eyes of 60 patients were studied; 30 eyes in each group. Mean baseline flare values were 4.15 +/- 1.19 and 4.57 +/- 2.17 ph/ms in standard and accelerated groups, respectively (p = 0.228).and after surgery increased in all follow-up measurements in the both groups similarly (P > 0.05). CONCLUSION: Both standard and accelerated CXL results in induction of a subclinical inflammatory response that persists up to 6 month. The response was similar between the two groups. PMID- 29333910 TI - Soft Contact Lenses to Optimize Vision in Adults with Idiopathic Infantile Nystagmus: A Pilot Parallel Randomized Controlled Trial. AB - PURPOSE: The optimal management of infantile nystagmus syndrome (INS) is still unclear. Contact lenses (CL) may be superior to glasses in improving visual function in INS but it is not known whether their beneficial effects are due to optical correction alone, or to an additional proprioceptive effect, and whether soft CLs would be as effective as rigid CLs. There is little data on feasibility and and the present study aimed to provide this information. METHODS: We completed a pilot Randomized Control Trial (RCT) at a single tertiary referral centre in London, UK. We enrolled 38 adults with idiopathic INS and randomised them to either plano CL (with corrective spectacles if required) or to corrective CL. CL wear was required for a minimum of 2 weeks. Primary outcome measures were feasibility and safety of CL wear in INS; secondary outcome measures were visual acuity and nystagmus waveform parameters. RESULTS: 27 completed the study (27/38,71%). 4 partcipants withdrew due to difficulty with CL insertion/removal and 7 were lost to follow up. CL tolerability was high (24/27,89%) - 2 found the CLs irritant, and 1 had an exacerbation of allergic eye disease. At two weeks, mean improvement in binocular visual acuity from baseline with plano CLs was 0.07 logMAR (95% confidence interval (CI: 0.03-0.11) and 0.06 logMAR with fully corrective CLs (95% CI:0.02-0.1). Mean improvement in the eXpanded Nystagmus Acuity Function (NAFX, a nystagmus acuity function based on eye movement recording) with plano CLs was -0.04(95% CI: -0.08-0.005) and -0.05 with fully corrective CLs(95% CI: -0.09-0.003). CONCLUSIONS: CLs are well tolerated, with a low risk profile. Whilst our study was not powered to detect significant changes in BCVA and waveform parameters between treatment arms, we observed a trend towards an improvement in visual function at two weeks from baseline with CLs. PMID- 29333911 TI - The Challenge of Pediatric Uveitis: Tertiary Referral Center Experience in the United States. AB - PURPOSE: To describe the distribution, clinical findings, visual outcomes, treatment, and complications of children with uveitis at a tertiary referral ophthalmic center. METHODS: Retrospective cohort study. We reviewed the medical records of all patients <=16 years with uveitis referred to Massachusetts Eye Research and Surgery Institution from March 2005 to July 2016. RESULTS: Of 286 included children, 62.24% were female. Mean age of onset was 8.4 years. The uveitis was mainly anterior (61.9%), recurrent (68.53%), bilateral (81.82%), and noninfectious (96.5%). Idiopathic cases accounted for 51.4%. The most frequent systemic association was juvenile idiopathic arthritis (34.96%). The majority of patients (78.32%) experienced complications. All patients, except one, needed systemic therapy. CONCLUSION: Pediatric uveitis is challenging to diagnose and manage, with frequent and potentially severe complications. Most cases were bilateral, recurrent, and idiopathic. Prompt referral to uveitis-specialized centers and an appropriate systemic therapy are mandatory for good visual outcomes. PMID- 29333912 TI - The resting-state fMRI arterial signal predicts differential blood transit time through the brain. AB - Previous studies have found that aperiodic, systemic low-frequency oscillations (sLFOs) are present in blood-oxygen-level-dependent (BOLD) data. These signals are in the same low frequency band as the "resting state" signal; however, they are distinct signals which represent non-neuronal, physiological oscillations. The same sLFOs are found in the periphery (i.e. finger tips) as changes in oxy/deoxy-hemoglobin concentration using concurrent near-infrared spectroscopy. Together, this evidence points toward an extra-cerebral origin of these sLFOs. If this is the case, it is expected that these sLFO signals would be found in the carotid arteries with time delays that precede the signals found in the brain. To test this hypothesis, we employed the publicly available MyConnectome dataset (a two-year longitudinal study of a single subject) to extract the sLFOs in the internal carotid arteries (ICAs) with the help of the T1/T2-weighted images. Significant, but negative, correlations were found between the LFO BOLD signals from the ICAs and (1) the global signal (GS), (2) the superior sagittal sinus, and (3) the jugulars. We found the consistent time delays between the sLFO signals from ICAs, GS and veins which coincide with the blood transit time through the cerebral vascular tree. PMID- 29333913 TI - Boxing fatalities in relation to rule changes in Japan: secondary data analysis. AB - OBJECTIVES: To examine whether changing weigh-in from the same day of the match to the day before the match and prohibiting 6-oz gloves are associated with fatalities in boxing matches sanctioned by the Japan Boxing Commission (JBC). METHODS: We analyzed the rates of boxing fatalities before and after the two rule changes above via secondary analysis of data. Demographics and boxing records of deceased boxers were examined using descriptive statistics, exact binomial test the Mann-Whitney-Wilcoxon test and Fisher's exact tests. RESULTS: As of this study, a total of 38 boxers (23.9 +/- 3.3 years of age) reportedly died due to injuries sustained in JBC-sanctioned boxing matches since 1952. Changing weigh-in to the day before the match or prohibiting 6-oz gloves was not significantly associated with the rates of boxing fatalities 5 years and 10 years before and after the rule changes (p > 0.05). Deceased boxers after these rule changes were significantly older, completed significantly more rounds in the final match, and were significantly less likely to lose the previous match (prior to the final match) and to do so by knockouts (p < 0.05). CONCLUSION: Changing weigh-in to the day before the match and prohibiting 6-oz gloves may not result in reducing boxing fatalities. PMID- 29333914 TI - Hybrid PET/MRI imaging in healthy unsedated newborn infants with quantitative rCBF measurements using 15O-water PET. AB - In this study, a new hybrid PET/MRI method for quantitative regional cerebral blood flow (rCBF) measurements in healthy newborn infants was assessed and the low values of rCBF in white matter previously obtained by arterial spin labeling (ASL) were tested. Four healthy full-term newborn subjects were scanned in a PET/MRI scanner during natural sleep after median intravenous injection of 14 MBq 15O-water. Regional CBF was quantified using a one-tissue-compartment model employing an image-derived input function (IDIF) from the left ventricle. PET rCBF showed the highest values in the thalami, mesencephalon and brain stem and the lowest in cortex and unmyelinated white matter. The average global CBF was 17.8 ml/100 g/min. The average frontal and occipital unmyelinated white matter CBF was 10.3 ml/100 g/min and average thalamic CBF 31.3 ml/100 g/min. The average white matter/thalamic ratio CBF was 0.36, significantly higher than previous ASL data. The rCBF ASL measurements were all unsuccessful primarily owing to subject movement. In this study, we demonstrated for the first time, a minimally invasive PET/MRI method using low activity 15O-water PET for quantitative rCBF assessment in unsedated healthy newborn infants and found a white/grey matter CBF ratio similar to that of the adult human brain. PMID- 29333915 TI - Gaze avoidance and perseverative language in fragile X syndrome and autism spectrum disorder: brief report. AB - Gaze avoidance and perseverative language impact pragmatics in autism spectrum disorder (ASD) and fragile X syndrome (FXS). We examined these features during conversation samples in boys with ASD (n = 10) and boys with FXS and ASD (FXS+ASD; n = 10). Both groups had similar high rates of gaze avoidance and topic and conversation device perseverations, yet these features were not correlated with one another. Boys with FXS+ASD produced a higher proportion of single utterance perseverations. Results from this study highlight the need for future research to identify potential mechanisms influencing the presence of language perseverations and gaze avoidance. PMID- 29333917 TI - Role of cortical microbleeds in cognitive impairment: In vivo behavioral and imaging characterization of a novel murine model. AB - Cerebral microbleeds (CMBs) could contribute to cognitive impairment in the general population and in patients with dementia. We designed a study to (i) develop a murine model of CMBs, (ii) assess whether CMBs affect cognition in this model and (iii) assess whether this model is sensitive to pharmacological modulation. Male C57Bl6/J mice were stereotactically administered collagenase to induce cortical lesion analysed by MRI at 24 h. CMB-mice were assessed at six weeks post-lesion for cognitive performances (Barnes maze and Touchscreen automated paired-associated learning (PAL) task) and for cerebral metabolism (in vivo PET/CT with fluorodeoxyglucose (FDG)). CMB-model sensitivity to pharmacological modulation was assessed by administering atorvastatin (5 mg/kg/day) over the follow-up period. CMB mice were compared to naive littermates. Collagenase at 0.8 uU/ul appeared suitable to induce reproducible and reliable CMBs. At six weeks, a decline in learning, spatial and visuospatial memory was significantly observed in CMB-mice. Brain metabolism was impaired in all cortex, striatum and the ipsilateral dentate gyrus. A significant improvement in cognition performances was depicted under atorvastatin. In this novel murine model of CMBs, we validated that CMBs lowered cognitive performances and affected regional metabolism. We also proved that this CMB-model is sensitive to pharmacological modulation. PMID- 29333918 TI - Modified second stage Hughes tarsoconjunctival reconstruction for lower eyelid defects. AB - To describe a novel technique utilizing an amniotic membrane graft (AMT) to create the mucocutaneous portion of the lower eyelid margin in a modified Hughes eyelid reconstruction for secondary revision or prevention of a hyperemic, hypertrophic conjunctival margin with excessive discharge. This was a retrospective, non-comparative interventional study. Thirty consecutive patients who underwent a modified Hughes reconstruction were included. The first step of the reconstruction was performed in a standard fashion using a tarsoconjunctival flap from the ipsilateral upper eyelid. The second stage was accomplished by the division of the tarsoconjunctival flap. The modification of the procedure included the addition of AMT (Ambio 5(r), IOP Ophthalmics, CA) to the new mucocutaneous junction. Main outcome measures included the post Mohs surgery defect size, post-reconstruction complications. One patient received AMT for a revision of a hyperemic lid margin following reconstruction, while 29 subsequent patients received AMT as a primary procedure. The mean size of the post-Mohs defect was 23.75 +/- 6.6 mm2 horizontally and 9.1 +/- 5.4 mm2 vertically, involving 79.53 +/- 16.8% of the lower eyelid. There was no evidence of hyperemic or hypertrophic margin at a mean follow-up of 4.41 +/- 2.91 months. The addition of an AMT for the revision, or as a primary procedure for prevention of a hyperemic, hypertrophic eyelid margin with excess mucus production in the post Hughes lower eyelid reconstruction has favorable outcomes in this preliminary study, however warrants further investigation with larger number of patients and longer follow-up. PMID- 29333916 TI - Cytoplasmic collagen XIalphaI as a prognostic biomarker in esophageal squamous cell carcinoma. AB - Stromal/cytoplasmic collagen XIalphaI (COL11A1) has been highlighted in the process of neoplastic transformation, including epithelial mesenchymal transition (EMT), metastasis and invasiveness. In this study, we aim to illuminate the clinical significance and biological role of COL11A1 in esophageal squamous cell carcinoma (ESCC). Herein, we investigated COL11A1 expression in 16 pairs of ESCC and adjacent normal tissues by RT-PCR and western blotting analysis. Correlations of COL11A1 expression with clinicopathologic parameters and survival status were then determined by immunohistochemistry in 116 ESCC and 50 normal specimens. Furthermore, bioinformatics was used for mechanisms exploration. And in vitro knockdown experiments were also performed. We found that COL11A1 expression was significantly higher in ESCC than in paired normal tissues at both mRNA and protein level. Immunohistochemistry showed that COL11A1 was predominantly localized to the cytoplasm rather than tumor stroma, patients with high COL11A1 expression had a poorer overall survival (OS) rate than those with low COL11A1 expression. Besides, increased COL11A1 expression was dramatically correlated with advanced clinical stage, invasion depth and lymph node metastases and served as an independent prognostic marker for ESCC. Likewise, COL11A1 dependent nomogram predicted a more precise survival outcome than traditional staging system. Moreover, COL11A1 silencing resulted in impaired cell proliferation and EMT, and subdued EMT inhibited cells aggressiveness. These biological processes (BPs) might be modulated by COL11A1 via the intracellular AKT/ERK/c-Myc cascades. PMID- 29333919 TI - Reconstruction of extensive medial canthal defects using a single V-Y, island pedicle flap. AB - The medial canthus represents one of the most challenging regions of the face to reconstruct due to the anatomical structures present, the concavity of the area, and the differences in skin texture. We present a case series of 11 patients whose defects were reconstructed with a single V-Y island pedicle flap running along the nasofacial sulcus. Our single-stage flap which modified and simplified a previously described technique achieves similar cosmetic and postoperative outcomes along with a high level of patient satisfaction in an area which can be reconstructed in a variety of ways, often with suboptimal results. PMID- 29333920 TI - Towards a psychology of sexual health. PMID- 29333921 TI - Targeting BRD4 proteins suppresses the growth of NSCLC through downregulation of eIF4E expression. AB - Lung cancer is the leading cause of cancer-related death worldwide. Bromodomain and extraterminal domain (BET) proteins act as epigenome readers for gene transcriptional regulation. Among BET family members, BRD4 was well studied, but for its mechanism in non-small cell lung carcinoma has not been elucidated. eIF4E regulates gene translation and has been proved to play an important role in the progression of lung cancer. In this study, we first confirmed that BET inhibitors JQ1 and I-BET151 suppressed the growth of NSCLCs, in parallel with downregulated eIF4E expression. Then we found that knockdown of BRD4 expression using siRNAs inhibited the growth of NSCLCs as well as decreased eIF4E protein levels. Moreover, overexpression of eIF4E partially abrogated the growth inhibitory effect of JQ1, while knockdown of eIF4E enhanced the inhibitory effect of JQ1. Furthermore, JQ1 treatment or knockdown of BRD4 expression decreased eIF4E mRNA levels and inhibited its promoter activity by luciferase reporter assay. JQ1 treatment significantly decreased the binding of eIF4E promoter with BRD4. Finally, JQ1 inhibited the growth of H460 tumors in parallel with downregulated eIF4E mRNA and protein levels in a xenograft mouse model. These findings suggest that inhibition of BET by JQ1, I-BET151, or BRD4 silencing suppresses the growth of non-small cell lung carcinoma through decreasing eIF4E transcription and subsequent mRNA and protein expression. Considering that BET regulates gene transcription epigenetically, our findings not only reveal a new mechanism of BET regulated eIF4E in lung cancer, but also indicate a novel strategy by co targeting eIF4E for enhancing BET-targeted cancer therapy. PMID- 29333923 TI - Perception and Practice of HIV/AIDS Counseling and Testing Among Secondary School Adolescents in Ogun Waterside Local Government Area, Ogun State, Southwest Nigeria. AB - A large proportion of Nigerian adolescents are sexually active and the country has one of the highest HIV prevalence among youths globally. This study was done to assess the perception and practice of HIV/AIDS counseling and testing (HCT) among secondary school adolescents in a rural community in Southwest Nigeria. A cross-sectional descriptive study was carried out using multistage sampling method. The results showed that despite high level of HCT awareness, majority of the adolescents (62.9%) had negative attitude toward it. The practice of HCT was poor among majority of the respondents as less than 15% of the adolescents had ever done HCT. This study recommends that adolescents should be better informed on the locations of the health centers within the community and services rendered by them. Peer education on HCT should also be intensified in schools to promote positive healthy sexual lifestyles among adolescents. PMID- 29333922 TI - Effect of resveratrol treatment on graft revascularization after islet transplantation in streptozotocin-induced diabetic mice. AB - We evaluated the effect of resveratrol (RSV) on graft survival after islet transplantation (ITx) in diabetic mice. Isolated islets from Balb/c mice (200 IEQ) were transplanted under the kidney capsule of diabetic Balb/c mice. Vehicle or RSV (200 mg/kg/day, orally) was given for 14 days after ITx. Two more control groups [STZ-treated (No-ITx-Control) and STZ+RSV-treated (No-ITx-RSV) mice without ITx] were added. Glucose tolerance tests (GTT) was performed at 14 days after ITx. In vitro, isolated islets pretreated with vehicle or RSV (1 MUM) were incubated in a hypoxic chamber (O2 1%, 1hr). Some of the ITx was performed in mouse insulin 1 gene promoter-green fluorescent protein (MIP-GFP) transgenic mice and analyzed using an in vivo imaging system. After 14 days of ITx, 2-hr glucose levels on GTT in the RSV-treated group were significantly lower than those of other control groups. But the glucose status was not improved in No-ITx mice with RSV. At day 3, the percentage of Ki-67/insulin co-stained cells in islet graft was significantly increased in the RSV-ITx group. Immunostaining with anti insulin and anti-BS-1 antibodies revealed significantly higher insulin-stained area and vascular density in RSV-treated islet grafts. The mean vessel volume per islet graft measured by in vivo imaging was significantly higher in the RSV treated group at day 3. In isolated islets cultured in hypoxic conditions, the cell death rate and oxidative stress were significantly attenuated with RSV pretreatment. Hypoxic treatment for isolated islets decreased the expression of SIRT-1 mRNA, and this attenuation was recovered by RSV pretreatment. Our data suggest that RSV treatment improved glycemic control, beta-cell proliferation, reduced oxidative stress, and enhanced islet revascularization and the outcome of ITx in diabetic mice. PMID- 29333924 TI - Dynamic MR imaging for functional vascularization depends on tissue factor signaling in glioblastoma. AB - Glomeruloid vascular proliferation (GVP) is a diagnostic hallmark and links to aggressive behavior, therapy resistance and poor prognosis in glioblastoma (GBM). It lacks clinical approaches to predict and monitor its formation and dynamic change. Yet the mechanism of GVPs also remains largely unknown. Using an in situ GBM xenograft mouse model, combined clinical MRI images of pre-surgery tumor and pathological investigation, we demonstrated that the inhibition of tissue factor (TF) decreased GVPs in Mouse GBM xenograft model. TF shRNA reduced microvascular area and diameter, other than bevacizumab. TF dominantly functions via PAR2/HB EGF-dependent activation under hypoxia in endothelial cells (ECs), resulting in a reduction of GVPs and cancer cells invasion. TF expression strongly correlated to GVPs and microvascular area (MVA) in GBM specimens from 56 patients, which could be quantitatively evaluated in an advanced MRI images system in 33 GBM patients. This study presented an approach to assess GVPs that could be served as a MRI imaging biomarker in GBM and uncovered a molecular mechanism of GVPs. PMID- 29333925 TI - Androgen receptor-independent prostate cancer: an emerging clinical entity. AB - Androgen deprivation therapy remains the backbone of prostate cancer treatment given its pivotal role in the pathogenesis of prostate cancer. The growing knowledge of androgen receptor-independent (i.e. AR-null) prostate cancer cells, however, might advance the treatment paradigm of prostate cancer. Here, we examined the results of two recent studies, published in Cancer Cell by Bluemn and Shukla et al., and their impact in the future management of castration resistant prostate cancer. PMID- 29333926 TI - Engrailed 1 overexpression as a potential prognostic marker in quintuple-negative breast cancer. AB - Triple-negative breast cancer (TNBC) is an aggressive breast cancer subtype characterized by poor patient prognosis and for which no targeted therapies are currently available. TNBC can be further categorized as either basal-like (BLBC) or quintuple-negative breast cancer (QNBC). In the present study, we aimed to identify novel molecular therapeutic targets for TNBC by analyzing the mRNA expression of TNBC-related genes in publicly available microarray data sets. We found that Engrailed 1 (EN1) was significantly overexpressed in TNBC. Using breast cancer cell lines, we found that EN1 was more highly expressed in TNBC than in other breast cancer subtypes. EN1 expression was analyzed in 199 TNBC paraffin-embedded tissue samples by immunohistochemistry. EN1 protein expression was positively associated with reduced overall survival (OS) rate in patients with QNBC, but not those with BLBC. The importance of EN1 expression in QNBC cell viability and tumorigenicity was evaluated using the QNBC cell lines, HCC38 and HCC1395. Based on our data, EN1 may promote the proliferation, migration, and multinucleation of QNBC cells, likely via the transcriptional activation of HDAC8, UTP11L, and ZIC3. We also demonstrated that actinomycin D effectively inhibits EN1 activity in QNBC cells. The results of the present study suggest that EN1 activity is highly clinically relevant to the survival prognosis of patients with QNBC and EN1 is a promising potential therapeutic target for future QNBC treatment. PMID- 29333927 TI - Comprehensive characterization of hydrothermal liquefaction products obtained from woody biomass under various alkali catalyst concentrations. AB - Hydrothermal liquefaction (HTL) of lignocellulosic biomass has been widely investigated for the production of renewable and alternative bio-crude oil. In this study, catalytic hydrothermal processing of two biomasses (larch and Mongolian oak) was performed using different K2CO3 concentrations (0, 0.1, 0.5, 1.0 wt% of solvent) to improve fuel yield and properties. HTL oil, hydrochar, water-soluble fraction (WSF) and gas were characterized, and carbon balance was investigated. As a result, the maximum yield of HTL oil, 27.7 wt% (Mongolian oak) and 25.7 wt% (larch), and the highest carbon conversion ratio was obtained with 0.5 wt% of catalyst. The high catalyst concentration also resulted in an increase in higher heating values up to 31.9 MJ/kg. In addition, the amount of organic compounds in HTL oil also increased, specifically for lignin-derived compounds including catechol and hydroquinone which can be derived from secondary hydrolysis of lignin. On the other hand, formation of hydrochar was suppressed with the addition of alkali catalyst and the yield dramatically decreased from 30.7-40.8 wt.% to 20.0-21.8 wt.%. Furthermore, it was revealed that WSF had low organic carbon content less than 3.4% and high potassium content mostly derived from alkali catalyst, indicating that it may be reusable with simple purification. This work suggests that the addition of the proper amount of alkali catalyst can improve the production efficiency and quality of bio-crude oil, and another potential of WSF to be recyclable in further work. PMID- 29333929 TI - Efficacy of an imaging device at identifying the presence of bacteria in wounds at a plastic surgery outpatients clinic. AB - OBJECTIVE: Current standard diagnostic practice of bacterial infections by visual inspection under white light is subjective, and microbiological sampling is suboptimal due to high false negative rates and the lengthy time needed for culture results to arrive. The MolecuLight i:X Imaging Device attempts to combat the issues faced in standard practice by providing a non-contact, real-time method of visualising bacteria within wounds. Our aim was to test this imaging device in a series of patients. METHOD: A single-centre prospective observational study was conducted in the Queen Elizabeth Hospital, Birmingham. During Plastic Surgery Outpatient dressings clinics, patients had their wounds photographed with the imaging device under white light and violet light illumination. Microbiological swabs were obtained of all the wounds. Any clinical signs and symptoms of infection were noted. White light and violet light photographs were compared with correlate visible clinical signs and symptoms with auto fluorescence images. Auto-fluorescence images were then compared with the microbiological swab results to discern any differences. RESULTS: There were 14 patients with seventeen separate wounds imaged. Of the 17, eight wounds were positive for bacterial growth on microbiological culture. All eight of these were detected positive for bacteria according to auto-fluorescence imaging. There was one wound was detected positive for bacteria by auto-fluorescence imaging with negative microbiological results. CONCLUSION: This study demonstrated the potential benefit of the imaging device due to the correlation between microbiological test results and auto-fluorescence imaging. The device greatly reduces the time taken waiting for results and it is simple, quick to use and non contact. There is potential for the imaging device to guide swab sampling and aid health professionals in the diagnosis and management of wound infections. PMID- 29333930 TI - A histological analysis of artificial skin in an extensively burned child, 14 years after application: a case report. AB - INTRODUCTION: Artificial skin has become the treatment of choice in extensive, full-thickness thermal injuries. The longest follow-up of the healing process in burn sites covered with the Integra Bilayer Matrix Wound Dressing onto the wound published to date was at around five years after application. In our case report, we describe the clinical and histological analysis of an extensive, full thickness thermal injury 14 years on from treatment with the bilayer matrix wound dressing. CASE STUDY: A nine-year-old boy suffered a full-thickness skin loss over 85% of his body surface area following a fire accident. The bilayer matrix wound dressing was used on both legs and covered almost 30% of his body surface area. Cosmetic and functional results were satisfactory. Histological analysis performed nine years after the application of the bilayer matrix wound dressing onto the wound showed a double-layered skin composition with changes in the fibrous component of the dermis. CONCLUSION: Despite satisfactory short- and long term clinical results from applications of the bilayer matrix wound dressing, we found important differences in microstructure when compared with the physiological condition. PMID- 29333928 TI - Phosphorylation of STAT3 Promotes Vasculogenic Mimicry by Inducing Epithelial-to Mesenchymal Transition in Colorectal Cancer. AB - Vasculogenic mimicry refers to the process by which highly invasive cancer cells mimic endothelial cells by forming blood channels. Vasculogenic mimicry is important for the invasion and metastasis of tumor cells in colorectal cancer. STAT3 was initially identified as a mediator of the inflammation-associated acute phase response. The phosphorylation of Signal Transducers and Activators of Transcription 3 (p-STAT3) is closely related to tumor invasion and migration. We analyzed the relationship between p-STAT3 and vasculogenic mimicry formation in 65 human colorectal cancer samples, and the results showed that the expression of p-STAT3 is significantly correlated with vasculogenic mimicry, tumor metastasis, Tumor, Lymph Node and Metastasis Stage (TNM Stage), and poor prognosis. It is known that interleukin 6 can induce the phosphorylation of STAT3. We found that using interleukin 6 to induce p-STAT3 activation in colorectal cancer cell lines can result in vasculogenic mimicry and using AG490 to suppress p-STAT3 activation restrained vasculogenic mimicry. Furthermore, the state of p-STAT3 activation can affect epithelial-to-mesenchymal transition. By immunofluorescence double staining, we discovered that p-STAT3 expression is more directly correlated with the epithelial-to-mesenchymal transition marker vimentin than with the vasculogenic mimicry-related protein VE-cadherin. These data show that activated p-STAT3 upregulates epithelial-to-mesenchymal transition-related proteins and promotes vasculogenic mimicry. PMID- 29333931 TI - Hyperspectral imaging of tissue perfusion and oxygenation in wounds: assessing the impact of a micro capillary dressing. AB - OBJECTIVE: Experimental tests of non-invasive multi- or hyperspectral imaging (HSI) systems reveal the high potential of support for medical diagnostic purposes and scientific biomedical analysis. Until now the use of HSI technologies for medical applications was limited by complex and overly sophisticated systems. We present a new and compact HSI-camera that could be used in normal clinical practice. METHOD: We assessed the use of the HSI system on the hands of 10 healthy volunteers, looking at control parameters, and those following venous occlusion, arterial occlusion and reperfusion, including tissue oxygenation, tissue haemoglobin index, perfusion in 4-6mm depth=near infrared spectroscopy (NIR), and tissue water index. Pseudo colours used ranged from 0% (blue) to 100% (red). We also assessed differences in the wounds of three patients. RESULTS: The results show good potential in all parameters in the healthy volunteers, which had high conformity with validated reference oximetry measurements. In three wounds, different levels of oxygenation were identified in the wound area, although interpretation of these results is complex. In Cases 2 and 3, following the application of a micro capillary dressing, improvements were seen in perfusion and reduction of the tissue water index (TWI). CONCLUSION: The camera system proved to be quick, flexible and yielded data with high spatial and spectral resolution. These data will be used to perform a power analysis for a randomised controlled study. PMID- 29333932 TI - A comparison between DACC with chlorhexidine acetate-soaked paraffin gauze and foam dressing for skin graft donor sites. AB - OBJECTIVE: Retrograde infections often occur with excessive or incomplete drainage of exudate, or as a result of adherence of dressings to wounds. Dialkylcarbamoyl chloride (DACC) irreversibly binds to bacterial surfaces and physically removes bacteria when dressings are changed. Chlorhexidine acetate soaked paraffin gauze provides a moist wound-healing environment. We hypothesise that when DACC is combined with chlorhexidine acetate-soaked paraffin gauze, wound healing times decrease. METHOD: From January 2013 to June 2015, medical records were retrospectively evaluated in 60 patients who underwent split thickness skin grafts (STSG). Patients were divided into two groups: a 'thick skin group' and a 'thin skin group'. These two groups were further subdivided into a control group, where conventional foam dressings were applied to wounds, and an experimental group, where chlorhexidine acetate-soaked paraffin gauze with DACC was applied (DACC group). We compared the wound healing time between these subgroups. Differences in infected wound healing times were also compared. The Mann-Whitney test was applied to compare wound healing times between groups. RESULTS: Epithelialisation duration was significantly shorter in the DACC group. The control group had longer wound healing times, regardless of wound size. In the thick skin group, the median healing duration was 12 days in the control subgroup, compared with 9.5 days in the DACC subgroup (p=0.049). In the thin skin subgroup, the median healing duration in the control group was 18 days, compared with 10 days in the DACC subgroup (p=0.013). CONCLUSION: Application of DACC and chlorhexidine acetate-soaked paraffin gauze to skin graft donor sites can shorten healing times and is effective in treating infected wounds. PMID- 29333933 TI - Inspiration: the forgotten element in improving skin health and wound healing? PMID- 29333934 TI - Split-thickness skin grafting: early outcomes of a clinical trial using different graft thickness. AB - OBJECTIVE: In clinical practice, split-thickness skin graft (STSG) transplantation remains the gold standard for covering large skin defects. Currently, there is no consensus on the optimal thickness of skin grafts. The purpose of our study was to compare the early healing processes of recipient and donor wounds after STSG transplantation using grafts of different thickness. METHOD: This prospective, randomised clinical trial included 84 patients that underwent STSG transplantation surgery for post-burn, post-traumatic or postoperative skin defects. Patients were randomised to receive a skin graft of either 0.2mm, 0.3mm or 0.4mm thickness. After skin transplantation, the wound healing parameters of both the recipient and donor wounds were evaluated after three days, one week, two weeks and one month. RESULTS: The greatest mean epithelialisation scores and highest rate of complete wound epithelialisation were identified in the recipient and donor wounds of the 0.2mm transplant group, at all time points. When the recipient wound pain scores were evaluated, the greatest visual analogue scale (VAS) values were found in the 0.2mm transplant group. The opposite result was found for the donor wound, where the highest VAS scores were identified in the 0.4mm transplant group. There were no significant differences, at any follow-up period, when wound secretion, erythema, swelling, localised warmth and fluctuation were compared. CONCLUSION: The early healing of recipient wounds after STSG transplantation with grafts of various thickness differed considerably, especially regarding wound epithelialisation and pain. PMID- 29333936 TI - Disseminated histoplasmosis: a rare case presentation. PMID- 29333935 TI - Association between Human Papilloma Virus (HPV) vaccination and risk of Multiple Sclerosis: A systematic review. AB - INTRODUCTION: The vaccination against Humanpapilloma Virus (HPV) is an effective strategy to prevent high-risk HPV infection and subsequent cervical carcinogenesis. Although the safety profile has been ascertained, the relation with the development of central nervous system (CNS) autoimmune disorders (AD) appears still controversial. Multiple Sclerosis (MS) is the most common cause of chronic neurological impairment in young people, typically striking females. The main purpose of this review was to assess the association between HPV vaccination and MS. METHODS: The systematic review of the literature was carried out using 5 search engines: MEDLINE, SCOPUS, ISI WEB OF KNOWLEDGE, GOOGLE SCHOLAR and ClinicalTrial.gov. The web search was updated on January 2017. PRISMA checklist was adopted to address the content of the systematic review. The measures of outcome were reported as relative risk (RR) in cohort studies and odds ratio (OR) in case-control studies. RESULTS: The systematic review identified 5 observational studies, 9 reviews, and 1 randomized clinical trials (RCT) pooled analysis. The RR of MS onset detected by cohort studies ranged from 1.54 (95%CI, 0.04-8.59) to 1.37 (95%CI, 0.74-3.20). Concerning case-control studies, the OR spanned from 0.3, (95%CI 0.1-0.9) to 1.60 (95%CI = 0.79-3.25) for the group exposed to HPV vaccination. No result was significant. CONCLUSION: This review showed no significant association between HPV vaccination and MS. The low statistical power of the studies agreed with the low incidence of MS disease among general population. In order to overcome the shortcoming the research may be extended to the entire pattern of CNS ADs. PMID- 29333937 TI - The Prevalence of Sexual Revictimization: A Meta-Analytic Review. AB - The literature consistently demonstrates evidence that child sexual abuse survivors are at greater risk of victimization later in life than the general population. This phenomenon is called sexual revictimization. Although this finding is robust, there is a large amount of variability in the prevalence rates of revictimization demonstrated in the literature. The purpose of the present meta-analysis was to calculate an average prevalence rate of revictimization across the literature and to examine moderators that may potentially account for the observed variability. Based on a review of PsycINFO and PILOTS, 1,412 articles were identified and reviewed for inclusion. This process resulted in the inclusion of 80 studies, which contained 12,252 survivors of child sexual abuse. The mean prevalence of sexual revictimization across studies was 47.9% (95% confidence intervals [43.6%, 52.3%]), suggesting that almost half of child sexual abuse survivors are sexually victimized in the future. The present study failed to find support for any of the examined moderators. Potential explanations of and implications for the results are offered, including suggestions for therapists. PMID- 29333938 TI - Structure-based engineering to restore high affinity binding of an isoform selective anti-TGFbeta1 antibody. AB - Metelimumab (CAT192) is a human IgG4 monoclonal antibody developed as a TGFbeta1 specific antagonist. It was tested in clinical trials for the treatment of scleroderma but later terminated due to lack of efficacy. Subsequent characterization of CAT192 indicated that its TGFbeta1 binding affinity was reduced by ~50-fold upon conversion from the parental single-chain variable fragment (scFv) to IgG4. We hypothesized this result was due to decreased conformational flexibility of the IgG that could be altered via engineering. Therefore, we designed insertion mutants in the elbow region and screened for binding and potency. Our results indicated that increasing the elbow region linker length in each chain successfully restored the isoform-specific and high affinity binding of CAT192 to TGFbeta1. The crystal structure of the high binding affinity mutant displays large conformational rearrangements of the variable domains compared to the wild-type antigen-binding fragment (Fab) and the low binding affinity mutants. Insertion of two glycines in both the heavy and light chain elbow regions provided sufficient flexibility for the variable domains to extend further apart than the wild-type Fab, and allow the CDR3s to make additional interactions not seen in the wild-type Fab structure. These interactions coupled with the dramatic conformational changes provide a possible explanation of how the scFv and elbow-engineered Fabs bind TGFbeta1 with high affinity. This study demonstrates the benefits of re-examining both structure and function when converting scFv to IgG molecules, and highlights the potential of structure-based engineering to produce fully functional antibodies. PMID- 29333939 TI - Parents' attitude, awareness and behaviour towards influenza vaccination in Pakistan. AB - National immunization program of Pakistan does not include Influenza vaccines. The low rate of immunization might be attributed to the poor knowledge of influenza vaccination in Pakistan. Current study was aimed to assess the knowledge and attitude of influenza vaccination among parents. A questionnaire based cross sectional study was conducted among randomly selected parents with at least one child aged >6 months. The responses were recorded against 27 items questionnaire assessing knowledge, perception, attitude and behaviours of parents. Data were analysed by using appropriate statistical methods. A total 532 responses were recorded with male gender preponderance (65%). Most of the parents (61.1%) reported that their children had received or planned to receive all recommended vaccines in Expanded Program on Immunization (EPI) of Pakistan. Only one third of the parents (24.4%) were aware of the availability of influenza vaccines in Pakistan, and very few (6.6%) reported vaccinating their child against influenza. Exploring the parents' attitudes regarding children vaccination, the top motivator was 'immunization is important to keep my children healthy' (relative index = 0.93, p < 0.000). However, substantial number of parents believed that influenza is not a serious disease (18.5%) and vaccines are accompanied by several side effects (24.6%). A positive attitude was reflected among parents who were aware of influenza vaccines in Pakistan. About 35% participants believed that influenza vaccines are not required for healthy children. Current study demonstrated very low vaccination rate against influenza. Awareness and health literacy regarding influenza vaccine is poor among parents. These findings necessitate the need to appropriately structured awareness programs regarding influenza vaccination among parents. PMID- 29333940 TI - Expression analysis of liver-specific circulating microRNAs in HCV-induced hepatocellular Carcinoma in Egyptian patients. AB - OBJECTIVES: Due to the absence of reliable and accurate biomarkers for the early detection of liver malignancy, circulating microRNAs have recently emerged as great candidates for prompt cancer identification. Therefore, the aim of this study was to investigate the potential of liver-specific circulating microRNAs as an accurate non-invasive diagnostic tool for early diagnosis of hepatitis C virus (HCV)-induced hepatocellular carcinoma (HCC). METHODOLOGY: A total of 165 patients were enrolled in this study and categorized into four main groups: 42 chronic hepatitis C (CHC) without cirrhosis, 45 CHC with cirrhosis (LC), 38 HCC with HCV patients, and 40 healthy controls. The expression profiles of seven miRNAs (miR-16, miR-34a, miR-125a, miR-139, miR-145, miR-199a, and miR-221) were analyzed using real-time PCR. RESULTS: Serum levels of miRNA-125a, miRNA-139, miRNA-145, and miRNA199a were significantly lower (p < 0.01) in HCC than in both CHC and LC groups. On the other hand, no significant difference was shown in the expression of miR-16, miR-34a, and miR-221 between the CHC, LC, and HCC groups. MiR-16, miR-34a, and miR-221 were significantly elevated in the HCC group compared to the control group. MiR-34a showed the highest specificity and sensitivity. CONCLUSIONS: The results indicated that the measurement of serum levels of miR-125a, miR-139, miR-145, and miR-199a can help to differentiate HCC from CHC and LC. Also, miR-16, miR-34a, and miR-221 serum levels would have a prognostic value. MiR-34a had the highest specificity and sensitivity, indicating that it might serve as a novel and potential non-invasive biomarker for HCV induced HCC. PMID- 29333941 TI - Intraoperative Complications and Mid-Term Follow-Up of Large-Diameter Head Metal on-Metal Total Hip Arthroplasty and Hip Resurfacing Arthroplasty. AB - BACKGROUND AND AIMS: Large-diameter head total hip arthroplasty and hip resurfacing arthroplasty were popular in Finland from 2000 to 2012 for the treatment of hip osteoarthritis. The aim of this retrospective study was to investigate the mid-term survival of large-diameter head total hip arthroplasty patients operated on in three university hospitals and to compare these results to the survival of hip resurfacing arthroplasty patients. MATERIAL AND METHODS: A total of 3860 hip arthroplasties (3029 large-diameter head total hip arthroplasties in 2734 patients and 831 hip resurfacing arthroplasties in 757 patients) were operated on between January 2004 and December 2009. The mean follow-up was 4.3 years (range: 0.3-8.0 years) in the total hip arthroplasty group and 5.1 years (range: 1.7-7.9 years) in the hip resurfacing arthroplasty group. Cox multiple regression model and Kaplan-Meier survival analysis were used to study the survival of the total hip arthroplasties and the hip resurfacing arthroplasties. Intraoperative complications and reasons for revisions were also evaluated. RESULTS: In Cox regression analysis, the hazard ratio for revision of hip resurfacing arthroplasty was 1.5 compared with large-diameter head total hip arthroplasty (95% confidence interval: 1.0-2.2) ( p = 0.029). The cumulative Kaplan-Meier survival rate was 90.7% at 7.7 years for the large-diameter head total hip arthroplasty (95% confidence interval: 86.8-94.6) and 92.2% at 7.6 years for hip resurfacing arthroplasty (95% confidence interval: 89.9-94.6). There were a total of 166/3029 (5.5%) intraoperative complications in the large diameter head total hip arthroplasty group and 20/831 (2.4%) in the hip resurfacing arthroplasty group ( p = 0.001). Revision for any reason was performed on 137/3029 (4.5%) of the arthroplasties in the large-diameter head total hip arthroplasty group and 52/831 (6.3%) in the hip resurfacing arthroplasty group ( p = 0.04). CONCLUSION: The mid-term survival of both of these devices was poor, and revisions due to adverse reactions to metal debris will most likely rise at longer follow-up. There were more intraoperative complications in the large-diameter head total hip arthroplasty group than in the hip resurfacing arthroplasty group. PMID- 29333942 TI - SIX1 and DACH1 influence the proliferation and apoptosis of hepatocellular carcinoma through regulating p53. AB - ABSTRACTS This research aimed to explore effects of SIX1 and DACH1 on hepatocellular carcinoma (HCC) cell proliferation, apoptosis and cell cycle. Fifty paired hepatocellular carcinoma tissues were screened for differentially expressed genes. SIX1 and DACH1 expressions were subjected to qRT-PCR and western blot in tumor tissues and cells. The knockdown efficiency of siRNAs and transfection efficiency of cDNAs and siRNAs were validated by qRT-PCR and western blot as well. Then colony formation assay and flow cytometry were applied to observe cell proliferation, cell apoptosis and cell cycle changes. Immunofluorescence co-localization and immunoprecipitation were used to analyze the interaction between proteins which was quantified using western blot. Effects of SIX1 and DACH1 on tumor growth and their expressions in tumors were confirmed in vitro in nude mice model. Results of these experiments showed that SIX1 was overexpressed while DACH1 was suppressed in HCC tissues and cells. The suppression of SIX1 and overexpression of DACH1 not only inhibited cell proliferation, but also induced cell apoptosis and arrested cell cycle in G2/M phase compared with control group. Results of immunofluorescence co-localization suggested that SIX1, p53 and DACH1 were significantly overlapped. Immunoprecipitation showed that DACH1 (marked with Flag tag) could pull down p53 and SIX1, but SIX1 (marked with His tag) could only pull down DACH1, which indicated that an indirect regulation between SIX1 and p53. Validated with western blot afterwards, DACH1 overexpression suppressed tumorigenesis in vivo by up-regulating p53 expression while SIX1 overexpression accelerated tumor growth by down-regulating p53 expression. Therefore, the decrease of SIX1 facilitated the expression of DACH1, thus activated the expression of p53 and suppressed the progression of HCC both in vitro and in vivo. PMID- 29333943 TI - Cyber-Victimization of People With Chronic Conditions and Disabilities: A Systematic Review of Scope and Impact. AB - The victimization of individuals with chronic conditions or disabilities is prevalent with severe impact at psychological and physiological levels. With the increasing use of technology these experiences were further reshaped. This systematic review aimed at scoping the experiences of cyber-victimization of people living with chronic conditions or disabilities and examine the documented impact on them. Following a four-stage search strategy in several databases including MEDLINE, Embase, PsychINFO, CINAHL, Cochrane and snowballing of references, a total of 2,922 studies were scanned and 10 studies were eventually included. Quality assessment was done in two phases using tools specific to observational studies and cyber-victimization research. A narrative synthesis of reported results covered a total of 3,070 people. Sample size ranged between 42 and 823 participants, and the age range was 6-71 years with a majority of White ethnic backgrounds. Most studies (n=9) were cross sectional. The prevalence range of cyber-victimization was 2%-41.7% based on variable definitions, duration and methods. Targeted conditions included physical impairments, intellectual disabilities and specific chronic diseases. The most common documented impact was psychological/psychiatric, mainly depression followed by anxiety and distress. Somatic health complaints and self-harm were also reported. We concluded that people with chronic conditions and disabilities were consistently at higher risk of victimization with devastating health complications. Research gaps were identified such as the need to address more conditions and acknowledge differences between heterogeneous health conditions. Other recommendations include allowing flexibility and accountability to patients/victims in research design, education on victimization and health consequences, and improving primary care. PMID- 29333944 TI - MiR-155 Promotes Uveal Melanoma Cell Proliferation and Invasion by Regulating NDFIP1 Expression. AB - MicroRNAs refer to small RNA molecules that destroy the messenger RNA by binding on them inhibiting the production of protein. However, the role of miR-155 in uveal melanoma metastasis remains largely unknown. In this study, we found that miR-155 was upregulated in both uveal melanoma cells and tissues. Transfection of miR-155 mimic into uveal melanoma cells led to an increase in cell growth and invasion; in contrast, inhibition of miR-155 resulted in opposite effects. Also, we identified Nedd4-family interacting protein 1 as a direct target of miR-155, and the expression of Nedd4-family interacting protein 1 was inhibited by miR 155. Furthermore, ectopic expression of Nedd4-family interacting protein 1 restored the effects of miR-155 on cell proliferation and invasion of uveal melanoma cells. In conclusion, miR-155 acts as a tumor promotor in uveal melanoma through increasing cell proliferation and invasion. Thus, miR-155 might serve as a potential therapeutic target in patients with uveal melanoma. PMID- 29333945 TI - Remarkable response with pembrolizumab plus albumin-bound paclitaxel in 2 cases of HER2-positive metastatic breast cancer who have failed to multi-anti-HER2 targeted therapy. AB - In clinical practice, one subgroup patients of breast cancer might have developed resistance to multi-anti-HER2 targeted drugs(trastuzumab, lapatinib and/or T-DM1) and can not benefit from the anti-HER2 targeted therapy continuously. We attempt to change the next therapic way for these patients. Two patients with metastatic breast cancer who have failed to multi-anti-HER2 targeted therapy were treated with pembrolizumab (2 mg/Kg, day1) plus albumin-bound paclitaxel (125 mg/m2, day1,8) every 3 weeks. CT evaluation and HER2 ECD test were performed every 2 cycles. Both of the two patients achieved remarkable response with Partial Remission (PR), meanwhile serum HER2 ECD levels (the upper normal limit is 15 ng/ml) showed a remarkable decreases(compared to the base line decreases 75% and 60% respectively). The results indicate that regimen of pembrolizumab combination with albumin-bound paclitaxel might produce response in patients with HER2 positive metastatic breast cancer who have failed to multi-anti-HER2 targeted therapy. PMID- 29333946 TI - Does inside passing contribute to the high incidence of groin injuries in soccer? A biomechanical analysis. AB - Groin injuries are common in soccer and often cause time-loss from training. While groin injuries have been linked to full effort kicking, the role of inside passing is unclear. Therefore, the purpose of this study was to investigate hip joint kinematics and muscle force, stress and contraction velocity for adductor longus and gracilis during inside passing. 3D kinematics of ten soccer players (23.4 yrs; 77.5 kg; 1.81 m) were captured with a motion capture system inside a Footbonaut. Muscle force and contraction velocity were determined with AnyBody Modelling System. Gracilis muscle forces were 9% lower compared to adductor longus (p = 0.005), but muscle stress was 183% higher in gracilis (p = 0.005). Contraction velocity reveals eccentric contraction of gracilis in the last quarter of the swing phase. Considering the combination of eccentric contraction, high muscle stress and the repetitive nature of inside passing, gracilis accumulates high loads in matches and training. These results indicate that the high incidence of groin injuries in soccer could be linked to isolated pass training. Practitioners need to be aware of the risk and refrain from sudden increases in the amount of pass training. This gives the musculoskeletal system time to adapt and might avoid career threatening injuries. PMID- 29333948 TI - Adult-Perpetrated Animal Abuse: A Systematic Literature Review. AB - Adults perpetrate the majority of animal abuse incidents yet clinicians are left with very little evidence base to advance/enhance their practice. The purpose of this systematic review is to synthesize and evaluate the current literature on adult-perpetrated animal abuse and to identify the etiological factors related to this type of offending. Twenty-three studies met the specific inclusion criteria but most importantly, they examined the characteristics of adult perpetrators of animal abuse. The findings from this review were demarcated by sample type: (1) Participants were the perpetrators of the animal abuse or held offense-supportive attitudes and (2) participants were victims of intimate partner violence reporting incidents of animal abuse perpetrated by their partner. From the perpetrator perspective, there were key developmental (i.e., maladaptive parenting strategies), behavioral (such as varied offending behaviors), and psychological (e.g., callousness, empathy deficits) factors highlighted in the literature. Finally, in the context of intimate partner violence, findings indicated that perpetrators abuse animals to control, coerce, intimidate, and/or manipulate their victims (this effect is moderated by the victims' emotional attachment to their pet). This review inherently underlines treatment targets that could achieve greater clinical gains, but we also conclude that more empirical and theoretical work is needed in order to set an agenda that prioritizes future research and effective practice. PMID- 29333949 TI - The "reading man" flap for reconstruction of large periorbital defects. AB - PURPOSE: The "reading man" flap (RMF), a double advancement transposition cutaneous flap named for its appearance, has been described in the reconstruction of various circular skin defects, particularly in the malar region. We describe two cases where this flap was used to reconstruct the lower eyelid/periorbital region. METHODS: Two oculoplastic patients with lower eyelid basal cell carcinomas underwent Mohs micrographic excision resulting in a large skin defects. In both cases, reconstruction was performed using the RMF. RESULTS: At 6 months, both patients achieved good cosmetic results with no case of secondary eyelid malposition. CONCLUSION: The RMF is a useful adjunct to the armamentarium of the oculoplastic surgeon for the reconstruction of large periorbital defects. PMID- 29333947 TI - Persistence of hepatitis B immune memory until 9-10 years of age following hepatitis B vaccination at birth and DTaP-IPV-HB-PRP~T vaccination at 2, 4 and 6 months. AB - OBJECTIVE: To evaluate the long-term persistence of anti-hepatitis B surface (HBs) antibodies and the response to a HB challenge re-vaccination in children who had received a primary series of DTaP-IPV-HB-PRP~T (HexaximTM) or DTaP-IPV HB/PRP~T (Infanrix hexaTM). METHODS: Two cohorts of participants who had previously received HB vaccine at birth followed by either DTaP-IPV-HB-PRP~T or DTaP-IPV-HB/PRP~T co-administered with PCV7 at 2, 4, 6 months of age in a randomized, Phase III, observer-blind study in Thailand, were followed up for anti-HBs antibodies (geometric mean concentrations [GMCs] and seroprotection [SP] rate [% of participants with a titer >=10 mIU/mL]) at 12-18 months of age and 9 10 years of age. A monovalent HB challenge re-vaccination was administered at 9 10 years of age and the anamnestic response was evaluated. RESULTS: Anti-HBs GMCs and SP rates in the DTaP-IPV-HB-PRP~T and DTaP-IPV-HB/PRP~T groups were high and similar post-primary vaccination series (2477 mIU/mL and 99.5% and 2442 mIU/mL and 99.5%, respectively) and declined to a similar extent in each group at 12-18 months (154.5 mIU/mL and 90.8% and 162.3 mIU/mL and 96.5%, respectively). Antibody levels further declined at 9-10 years of age (13.3 mIU/mL and 49.3% and 8.0 mIU/mL and 42.9%) and a strong anamnestic response occurred in each group post-HB challenge re-vaccination (92.8% and 98.7%, respectively). CONCLUSION: The kinetics of long-term anti-HBs antibody persistence were similar following a primary series of DTaP-IPV-HB-PRP~T or DTaP-IPV-HB/PRP~T. The response to a subsequent HB challenge re-vaccination was strong and similar in each group, demonstrating persisting immune memory. PMID- 29333950 TI - Willingness to pay for an Ebola vaccine during the 2014-2016 ebola outbreak in West Africa: Results from a U.S. National sample. AB - The 2014-2016 Ebola virus outbreak in West Africa led to advances in the development of vaccines against Ebola. This study examined factors associated with willingness to pay for an Ebola vaccine among a U.S. national sample during the recent Ebola outbreak. From April 30-May 8, 2015, a national survey was conducted using the GfK Group's KnowlegePanel(r). Main outcome measures included willingness to pay at least $1; more than $50; and more than $100 for an Ebola vaccine. Analyses were conducted using weighted multivariable logistic regression. Among participants (N = 1,447), 583 (40.3%) would not pay for an Ebola vaccine; 864 (59.7%) would pay at least $1. Among those willing to pay at least $1: 570 (66.0%) would pay $1-50; 174 (20.1%) would pay $51-100; and 120 (13.9%) would pay more than $100. Willingness to pay at least $1 for an Ebola vaccine was associated with international travel; interest in getting an Ebola vaccine; and beliefs that the U.S. government should spend money to control Ebola and assume worldwide leadership in confronting emerging epidemics. Willingness to pay more than $50 was associated with similar variables. Willingness to pay more than $100 was associated with international travel; interest in getting an Ebola vaccine; information seeking; and beliefs that the U.S. government should assume worldwide leadership in confronting emerging epidemics. International travel and interest in an Ebola vaccine were key predictors of willingness to pay across all price points. Understanding willingness to pay for vaccines against emerging infectious diseases remains critical. PMID- 29333951 TI - A Systematic Review of Risk and Protective Factors for Externalizing Problems in Children Exposed to Intimate Partner Violence. AB - Intimate partner violence (IPV) is a serious public health issue with innumerable costs to the victims, children, and families affected as well as society at large. The evidence is conclusive regarding a strong association between exposure to IPV and children's externalizing problems. Moving forward, the next step is to enhance our understanding of risk and protective factors associated with these outcomes in order to tailor treatments to meet the needs of both parents and children. The databases Medline, PubMed, and PsyINFO were searched combining variations of the key words such as parent*, child*, mother, partner abuse, domestic abuse, spousal abuse, interpersonal violence, domestic violence, or intimate partner violence. This search were combined with child externalizing behaviors specifically conduct*, oppositional defiant disorder, externaliz*, aggress*, hyperactivity, and ADHD. A total of 31 studies from all three databases were reviewed following application of inclusion and exclusion criteria. The main findings were that child age and gender, callous-unemotional traits, cognitive appraisals, maternal mental health, and quality of parenting emerged as key mediating and moderating factors of the relationship between IPV exposure and child externalizing problems. These findings suggest that interventions provided to families exposed to IPV need to target both maternal and child risk factors in order to successfully reduce child externalizing problems. PMID- 29333952 TI - Trauma Intervention in Sub-Saharan African Children: A Systematic Literature Review. AB - Sub-Saharan Africa is a part of the world that is highly affected by a large number of atrocities, causing a myriad of financial, physical health, and mental health consequences. Yet, unfortunately, according to the World Health Organization (WHO), this is also the part of the world that is least served by mental health services. In response, the WHO has created mandates to increase mental health resources and capacity in all countries. Researchers have taken on the work of introducing and adapting treatments in various sub-Saharan African countries with an aim to create sustainable, evidence-based treatment in a part of the world with high need. The current qualitative systematic review of the literature examines 20 articles that report on research conducted in sub-Saharan African countries with children who have suffered different types of traumas. This review answers questions concerning the types of treatments used, the people administering the treatments, the measures they take to adapt these treatments, and the types of outcomes that are seen. Overall, the majority of treatments being used are shown to be effective with the associated populations. PMID- 29333953 TI - The irreversible ERBB1/2/4 inhibitor neratinib interacts with the BCL-2 inhibitor venetoclax to kill mammary cancer cells. AB - The irreversible ERBB1/2/4 inhibitor, neratinib, down-regulates the expression of ERBB1/2/4 as well as the levels of MCL-1 and BCL-XL. Venetoclax (ABT199) is a BCL 2 inhibitor. At physiologic concentrations neratinib interacted in a synergistic fashion with venetoclax to kill HER2 + and TNBC mammary carcinoma cells. This was associated with the drug-combination: reducing the expression and phosphorylation of ERBB1/2/3; in an eIF2alpha-dependent fashion reducing the expression of MCL-1 and BCL-XL and increasing the expression of Beclin1 and ATG5; and increasing the activity of the ATM-AMPKalpha-ULK1 S317 pathway which was causal in the formation of toxic autophagosomes. Although knock down of BAX or BAK reduced drug combination lethality, knock down of BAX and BAK did not prevent the drug combination from increasing autophagosome and autolysosome formation. Knock down of ATM, AMPKalpha, Beclin1 or over-expression of activated mTOR prevented the induction of autophagy and in parallel suppressed tumor cell killing. Knock down of ATM, AMPKalpha, Beclin1 or cathepsin B prevented the drug-induced activation of BAX and BAK whereas knock down of BID was only partially inhibitory. A 3-day transient exposure of established estrogen-independent HER2 + BT474 mammary tumors to neratinib or venetoclax did not significantly alter tumor growth whereas exposure to [neratinib + venetoclax] caused a significant 7-day suppression of growth by day 19. The drug combination neither altered animal body mass nor behavior. We conclude that venetoclax enhances neratinib lethality by facilitating toxic BH3 domain protein activation via autophagy which enhances the efficacy of neratinib to promote greater levels of cell killing. PMID- 29333954 TI - Prevalence, Diagnosis, and Treatment Rates of Mood Disorders among Opioid Users under Criminal Justice Supervision. AB - BACKGROUND: Individuals involved in the criminal justice system have disproportionately high rates of psychiatric disorders when compared to the general U.S. POPULATION: If left untreated, the likelihood of subsequent arrest increases and risk for adverse health consequences is great, particularly among opioid users. OBJECTIVES: To explore the prevalence, characteristics, and treatment of mood disorders among justice involved opioid-dependent populations. METHODS: The current study enrolled 258 treatment-seeking opioid-dependent individuals under community-based criminal justice supervision (e.g., probation, parole) screened from the larger parent study, Project STRIDE, a seek/test/treat randomized control trial (RCT) examining HIV and opioid use treatment. During baseline, individuals were screened for depression using the Patient Health Questionnaire-9 (PHQ-9) and screened for bipolar disorder using the Mood Disorder Questionnaire (MDQ) tool. RESULTS: Overall, 78 (30%) participants screened positive for moderate to severe depression and 54 (21%) screened positive for bipolar disorder. Participants self-reported mood disorders at higher rates than they screened positive for these conditions. Participants screening positive for these conditions experienced significantly greater family, legal, and medical problems on the Addiction Severity Index-Lite (ASI-Lite) than those who did not screen positive. Incidence of a lifetime suicide attempt was found to be associated with a positive screen for both mood disorders. Prescribed psychotropic treatment utilization was similar among those who screened positive for depression or bipolar disorder with approximately 38% reporting taking medication. IMPORTANCE: Findings suggest universal mood disorder screening to improve comprehensive psychiatric care and treatment of opioid-dependent justice involved individuals. PMID- 29333955 TI - The Relationship Between Internalized Homophobia and Intimate Partner Violence in Same-Sex Relationships: A Meta-Analysis. AB - A meta-analysis was conducted to investigate the association between internalized homophobia and intimate partner violence (IPV) perpetration and victimization in same-sex relationships. The literature search and the application of the inclusion criteria made it possible to identify 10 studies, 2 of which were excluded due to missing data. Therefore, eight studies were finally included in the meta-analysis. The results showed positive and statistically significant associations between internalized homophobia and IPV perpetration and victimization, indicating that higher levels of internalized homophobia were related to higher levels of IPV. Specifically, the pooled effect size for the relationship between internalized homophobia and IPV perpetration (all forms), it was r+ = .147, 95% confidence interval (CI) = [.079, .214]; for the association between internalized homophobia and physical/sexual IPV perpetration, it was r+ = .166, 95% CI [.109, .221]; p < .0001; for the relationship between internalized homophobia and psychological IPV perpetration, it was r+ = .145, 95% CI [.073, .216]; and for the association between internalized homophobia and any type of IPV victimization, it was r+ = .102, 95% CI [.030, .173]. Implications of these results for clinical practice and future research are discussed. PMID- 29333956 TI - High-efficiency treatment of PTA wastewater using a biogas jet assisted anaerobic fluidized bed reactor. AB - In this paper, a new type of biogas jet assisted anaerobic fluidized bed reactor loaded with a polypropylene carrier has been proposed. There was a clear improvement in the fluidized state due to the biogas assisted input when the gas/water ratio was set at 1:3 with a suitable carrier loading of 60%. When the circulating water flow is 30 L/min assisted with biogas 10 L/min, the mixing time shortens from 26 to 18 s. The performance of anaerobic biodegradation on wastewater treatment was improved largely. The chemical oxygen demand (COD) and terepthallic acid removal efficiencies were at 85.4% and 84%, respectively, at hydraulic retention time of 20 h, even when the influent COD concentration was as high as 4224 mg/L. In addition, plenty of microorganisms, attached to the carriers and assumed to be the reason behind the organic biodegradation efficiency of the proposed system, were observed using scanning electron microscopy. PMID- 29333957 TI - MiR-98 Promotes Apoptosis of Glioma Cells via Suppressing IKBKE/NF-kappaB Pathway. AB - The inhibitor of kappa B kinase epsilon is overexpressed in glioma and plays antiapoptotic role via activating nuclear factor-kappa B. microRNA-98 can suppress glioma, modulate the activities of nuclear factor-kappa B, and bind to the 3'-untranslated region of inhibitor of kappa B kinase epsilon messenger RNA. This study was aimed to investigate the modulation of inhibitor of kappa B kinase epsilon/nuclear factor-kappa B by microRNA-98 in glioma. The results indicated that microRNA-98 was downregulated in glioma cell lines and human glioma tissues. Overexpression of microRNA-98 in U87MG and T98G glioma cells significantly increased the apoptosis induced by ultraviolet irradiation and suppressed nuclear factor-kappa B luciferase activity, nuclear factor-kappa B p50 subunit expression, and B-cell lymphoma-2 (Bcl-2) expression in glioma cells. Silencing inhibitor of kappa B kinase epsilon decreased the expression of nuclear factor kappa B p50 subunit and the luciferase activity of nuclear factor-kappa B, while the nuclear factor-kappa B activity could be significantly retrieved when inhibitor of kappa B kinase epsilon was expressed in microRNA-98-transfected cells. These findings indicated that microRNA-98 could promote apoptosis of glioma cells via inhibiting inhibitor of kappa B kinase epsilon/nuclear factor kappa B signaling and presented a novel regulatory pathway of microRNA-98 by direct suppression of inhibitor of kappa B kinase epsilon/nuclear factor-kappa B expression in glioma cells. PMID- 29333958 TI - Focal MRI-Guided Salvage High-Dose-Rate Brachytherapy in Patients With Radiorecurrent Prostate Cancer. AB - INTRODUCTION: Whole-gland salvage treatment of radiorecurrent prostate cancer has a high rate of severe toxicity. The standard of care in case of a biochemical recurrence is androgen deprivation treatment, which is associated with morbidity and negative effects on quality of life. A salvage treatment with acceptable toxicity might postpone the start of androgen deprivation treatment, might have a positive influence on the patients' quality of life, and might even be curative. Here, toxicity and biochemical outcome are described after magnetic resonance imaging-guided focal salvage high-dose-rate brachytherapy in patients with radiorecurrent prostate cancer. MATERIALS AND METHODS: Seventeen patients with pathologically proven locally recurrent prostate cancer were treated with focal high-dose-rate brachytherapy in a single 19-Gy fraction using magnetic resonance imaging for treatment guidance. Primary radiotherapy consisted of external beam radiotherapy or low-dose-rate brachytherapy. Tumors were delineated with Ga-68 prostate-specific membrane antigen or F18-choline positron emission tomography in combination with multiparametric magnetic resonance imaging. All patients had a prostate-specific antigen level of less than 10 ng/mL at the time of recurrence and a prostate-specific antigen doubling time of >=12 months. Toxicity was measured by using the Common Terminology Criteria for Adverse Events version 4. RESULTS: Eight of 17 patients had follow-up interval of at least 1 year. At a median follow-up interval of 10 months (range 3-40 months), 1 patient experienced a biochemical recurrence according to the Phoenix criteria, and prostate-specific membrane antigen testing revealed that this was due to a distant nodal metastasis. One patient had a grade 3 urethral stricture at 2 years after treatment. CONCLUSION: Focal salvage high-dose-rate brachytherapy in patients with radiorecurrent prostate cancer showed grade 3 toxicity in 1 of 17 patients and a distant nodal metastasis in another patient. Whether this treatment option leads to cure in a subset of patients or whether it can successfully postpone androgen deprivation treatment needs further investigation. PMID- 29333960 TI - A Meta-Analysis of Risk and Protective Factors for Dating Violence Victimization: The Role of Family and Peer Interpersonal Context. AB - Dating violence (DV) is a widespread social issue that has numerous deleterious repercussions on youths' health. Family and peer risk factors for DV have been widely studied, but with inconsistent methodologies, which complicates global comprehension of the phenomenon. Protective factors, although understudied, constitutes a promising line of research for prevention. To date, there is no comprehensive quantitative review attempting to summarize knowledge on both family and peer factors that increase or decrease the risk for adolescents and emerging adults DV victimization. The current meta-analysis draws on 87 studies with a total sample of 278,712 adolescents and young adults to examine effect sizes of the association between various family and peer correlates of DV victimization. Results suggest small, significant effect sizes for all the family (various forms of child maltreatment, parental support, and parental monitoring) and peer factors (peer victimization, sexual harassment, affiliation with deviant peers, and supportive/prosocial peers) in the prediction of DV. With few exceptions, forms of DV (psychological, physical, and sexual), gender, and age did not moderate the strength of these associations. In addition, no difference was found between the magnitude of family and peer factors' effect sizes, suggesting that these determinants are equally important in predicting DV. The current results provide future directions for examining relations between risk and protective factors for DV and indicate that both peers and family should be part of the development of efficient prevention options. PMID- 29333959 TI - A Noninvasive Body Setup Method for Radiotherapy by Using a Multimodal Image Fusion Technique. AB - PURPOSE: To minimize the mismatch error between patient surface and immobilization system for tumor location by a noninvasive patient setup method. MATERIALS AND METHODS: The method, based on a point set registration, proposes a shift for patient positioning by integrating information of the computed tomography scans and that of optical surface landmarks. An evaluation of the method included 3 areas: (1) a validation on a phantom by estimating 100 known mismatch errors between patient surface and immobilization system. (2) Five patients with pelvic tumors were considered. The tumor location errors of the method were measured using the difference between the proposal shift of cone-beam computed tomography and that of our method. (3) The collected setup data from the evaluation of patients were compared with the published performance data of other 2 similar systems. RESULTS: The phantom verification results showed that the method was capable of estimating mismatch error between patient surface and immobilization system in a precision of <0.22 mm. For the pelvic tumor, the method had an average tumor location error of 1.303, 2.602, and 1.684 mm in left right, anterior-posterior, and superior-inferior directions, respectively. The performance comparison with other 2 similar systems suggested that the method had a better positioning accuracy for pelvic tumor location. CONCLUSION: By effectively decreasing an interfraction uncertainty source (mismatch error between patient surface and immobilization system) in radiotherapy, the method can improve patient positioning precision for pelvic tumor. PMID- 29333961 TI - Helping Survivors of Human Trafficking: A Systematic Review of Exit and Postexit Interventions. AB - BACKGROUND: Human trafficking is a global problem and results in deleterious psychological, social, and physical effects on the lives of those who are trafficked; however, it is not clear how to best intervene with survivors. The purpose of this review was to synthesize the evidence of exit and postexit intervention programs for survivors of human trafficking to inform practice and research. METHOD: Systematic review methods were used to search, select, and extract data from published and unpublished experimental, quasi-experimental, and preexperimental studies that assessed the effects of any exit or postexit interventions for victims of human trafficking. The authors searched eight databases, reviewed bibliographies, and conducted forward citation searches from relevant reports and prior reviews to find studies authored between 2005 and 2015. RESULTS: The search yielded six eligible studies that included 155 female and 6 male survivors from four countries. Interventions were diverse, with three using a trauma-informed approach. Authors measured a myriad of outcomes, including mental health, social network, community reintegration, and employment; however, the quality of most studies was poor. DISCUSSION: Evidence of effects of exit and postexit interventions is sparse, and much of the research is poorly designed and executed; however, the needs of trafficking survivors are complex and effective interventions are desperately needed. Implications for practice and research are discussed. PMID- 29333962 TI - Childhood Maltreatment and the Risk for Criminal Justice Involvement and Victimization Among Homeless Individuals: A Systematic Review. AB - Homeless individuals are at higher risk of criminal justice involvement (CJI) and victimization compared to their housed counterparts. Exposure to childhood maltreatment (CM; e.g., abuse, neglect) is one of the most significant predictors of CJI and victimization among homeless populations. The aim of this systematic review was to synthesize current knowledge regarding the relationship between CM and CJI and victimization among homeless individuals. Guided by the preferred reporting items for systematic reviews and meta-analyses (PRISMA) methods, a systematic search was performed using PsycINFO, MEDLINE, Embase, Web of Science, and the Cumulative Index to Nursing and Allied Health Literature for published studies investigating the relationship between CM and CJI and victimization among homeless samples. We identified 20 studies that met the inclusion criteria. Findings showed that across the majority of studies, CM, and in particular childhood physical (CPA) and sexual (CSA) abuse, is associated with increased risk of both CJI and victimization, regardless of various important factors (e.g., sociodemographic characteristics, psychiatric disorders, substance use). These findings support the need for prevention and treatment for "families at risk" (i.e., for intimate partner violence, child abuse and neglect) and also document the need for trauma-informed approaches within services for homeless individuals. Future research should focus on prospective designs that examine victimization and CJI in the same samples. PMID- 29333963 TI - The Differential Victimization Associated With Depression and Anxiety in Cross Cultural Perspective: A Meta-Analysis. AB - Traditional bullying and cyberbullying have become serious worldwide issues. The meta-analysis in this article took a cross-cultural perspective to explore whether there were any differences between the effects of cyber victimization and traditional victimization on the presence of depression and anxiety in children and adolescents and to examine the effects of moderators in explaining these differences/similarities. Fifty-six empirical studies (generating 148 independent samples) were included with a total sample size of 214,819 participants. The results indicated that the effects of cyber victimization and the subtypes of traditional victimization on anxiety were significantly different, and there was a marginally significant difference for depression. The moderating effects of country of origin were found to be significant for depression, with the mean effect size in North America being significantly higher than in China and Europe, which suggested that culture was an important factor. The moderating effects of age were also found to be significant for the relationships between traditional victimization and depression, traditional victimization and anxiety, cyber victimization and depression, and cyber victimization and anxiety. In addition, the effect size for cyber victimization and depression has increased in more recent publication years. PMID- 29333964 TI - The Scale of Sexual Aggression in Southeast Asia: A Review. AB - Southeast Asia is one of the most dynamic regions in the world. It is experiencing rapid socioeconomic change that may influence the level of sexual aggression, but data on the scale of sexual aggression in the region remain sparse. The aim of the present article was to systematically review the findings of studies available in English on the prevalence of self-reported sexual aggression and victimization among women and men above the age of 12 years in the 11 countries of Southeast Asia (Brunei, Cambodia, East Timor, Indonesia, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam). Based on four scientific databases, the search engine Google, Opengrey database, and reference checking, 49 studies were found on sexual victimization. Of those, 32 included only women. Self-reported perpetration was assessed by only three studies and included all-male samples. Prevalence rates varied widely across studies but showed that sexual victimization was widespread among different social groups, irrespective of sex and sexual orientation. Methodological heterogeneity, lack of representativeness of samples, imbalance of information available by country, missing information within studies, and cultural differences hampered the comparability between and within countries. There is a need for operationalizations that specifically address sexual aggression occurring after the age of consent, based on detailed behavioral descriptions of unwanted sexual experiences and allied to a qualitative approach with cultural sensitivity. Data on sexual aggression in conflict settings and in human trafficking are also limited. Recommendations for future research are presented in the discussion. PMID- 29333965 TI - Prevalence of Sexual Aggression Victimization and Perpetration in Chile: A Systematic Review. AB - Sexual aggression is a major public health issue worldwide, but most knowledge is derived from studies conducted in North America and Western Europe. Little research has been conducted on the prevalence of sexual aggression in developing countries, including Chile. This article presents the first systematic review of the evidence on the prevalence of sexual aggression victimization and perpetration among women and men in Chile. Furthermore, it reports differences in prevalence rates in relation to victim and perpetrator characteristics and victim perpetrator relationships. A total of N = 28 studies were identified by a three stage literature search, including the screening of academic databases, publications of Chilean institutions, and reference lists. A great heterogeneity was found for prevalence rates of sexual victimization, ranging between 1.0% and 51.9% for women and 0.4% and 48.0% for men. Only four studies provided perpetration rates, which varied between 0.8% and 26.8% for men and 0.0% and 16.5% for women. No consistent evidence emerged for differences in victimization rates in relation to victims' gender, age, and education. Perpetrators were more likely to be persons known to the victim. Conceptual and methodological differences between the studies are discussed as reasons for the great variability in prevalence rates, and recommendations are provided for a more harmonized and gender-inclusive approach for future research on sexual aggression in Chile. PMID- 29333966 TI - The Impacts of Sexual Media Exposure on Adolescent and Emerging Adults' Dating and Sexual Violence Attitudes and Behaviors: A Critical Review of the Literature. AB - Dating violence (DV) and sexual violence (SV) are widespread problems among adolescents and emerging adults. A growing body of literature demonstrates that exposure to sexually explicit media (SEM) and sexually violent media (SVM) may be risk factors for DV and SV. The purpose of this article is to provide a systematic and comprehensive literature review on the impact of exposure to SEM and SVM on DV and SV attitudes and behaviors. A total of 43 studies utilizing adolescent and emerging adult samples were reviewed, and collectively the findings suggest that (1) exposure to SEM and SVM is positively related to DV and SV myths and more accepting attitudes toward DV and SV; (2) exposure to SEM and SVM is positively related to actual and anticipated DV and SV victimization, perpetration, and bystander nonintervention; (3) SEM and SVM more strongly impact men's DV and SV attitudes and behaviors than women's DV and SV attitudes and behaviors; and (4) preexisting attitudes related to DV and SV and media preferences moderate the relationship between SEM and SVM exposure and DV and SV attitudes and behaviors. Future studies should strive to employ longitudinal and experimental designs, more closely examine the mediators and moderators of SEM and SVM exposure on DV and SV outcomes, focus on the impacts of SEM and SVM that extend beyond men's use of violence against women, and examine the extent to which media literacy programs could be used independently or in conjunction with existing DV and SV prevention programs to enhance effectiveness of these programming efforts. PMID- 29333967 TI - A Meta-Analysis of Risk Markers for Intimate Partner Violence in Same-Sex Relationships. AB - Research on intimate partner violence (IPV) has largely focused on heterosexual relationships, but, in recent years, researchers have expanded their focus to include same-sex relationships. Using meta-analytic techniques, this study was conducted to examine the relative strength of various risk markers for men and women being perpetrators and victims of physical IPV in same-sex relationships. Articles were identified through research search engines and screened to identify articles fitting the inclusion criteria, a process that resulted in 24 studies and 114 effect sizes for the meta-analysis. The strongest risk marker among those with at least two effect sizes for both male and female perpetration was psychological abuse perpetration. The strongest risk marker among those with at least two effect sizes for IPV victimization was also perpetration of psychological abuse for males and psychological abuse victimization for females. Among same-sex-specific risk markers, internalized homophobia and fusion were the strongest predictors for being perpetrators of IPV for men and women, respectively. HIV status and internalized homophobia were the strongest risk markers for IPV victimization for men and women, respectively. Of 10 comparisons between men and women in risk markers for IPV perpetration and victimization, only 1 significant difference was found. The results suggest that although same sex and heterosexual relationships may share a number of risk markers for IPV, there are risk markers for physical IPV unique to same-sex relationships. Further research and increased specificity in measurement are needed to better study and understand the influence of same-sex-specific risk markers for IPV. PMID- 29333968 TI - The Complexity of Adaptation to Childhood Polyvictimization in Youth and Young Adults: Recommendations for Multidisciplinary Responders. AB - Exposure to violence is pervasive in our society. An abundance of research has demonstrated that individuals who experience polyvictimization (PV)-prolonged or multiple forms of traumatic victimizations-are at heightened risk for continuing to experience repeated victimizations throughout their lifetimes. The current article reviews several overlapping constructs of traumatic victimizations with the ultimate goal of providing a unifying framework for conceptualizing prolonged and multiple victimization (defined in this article as PV) as a precursor to complex post-traumatic biopsychosocial adaptations, revictimization, and in some instances reenactment as a perpetrator (defined as complex trauma [CT]). This model is then applied to three socially disadvantaged victim populations-lesbian, gay, bisexual, transgender, queer, or questioning; commercially sexually exploited individuals; and urban communities of color-who are at heightened risk for PV and for exhibiting complex clinical presentations to demonstrate how the PV-CT framework can destigmatize, reframe, and ultimately reduce health disparities experienced by these populations. Trauma-informed recommendations are provided to aid researchers and multidisciplinary providers working to reduce harm and improve the quality of life for polyvictims. PMID- 29333969 TI - Sexual Violence Against Older People: A Review of the Empirical Literature. AB - Aging and sexual violence are both established areas of research, but little attention has been paid to research into sexual violence against older people. This article presents a critical review of the literature reporting empirical research in three overlapping fields of inquiry: elder abuse, domestic violence, and sexual violence, identifying points of theoretical and methodological similarity and difference across academic disciplines. Using a range of search terms combining age, sexual violence, and elder abuse, the following databases were searched: EBSCOHOST, Ingenta-Ingenta connect, and JSTOR. In total, the databases searches returned 31 relevant articles and an additional 9 relevant articles were found through manual searches of bibliographies and Google searches, which were grouped into three categories: elder abuse, domestic violence in later life, and sexual violence against older people. Four themes common across these fields emerged: prevalence, characteristics of victims and risk factors, impacts and coping strategies, and perpetrator and assault characteristics. The findings in each area are discussed in detail, exposing gaps in knowledge and understandings of sexual violence against older women. The article ends by defining a future research agenda for this underexplored phenomenon that is of increasing importance in a context of global aging. PMID- 29333970 TI - Parental Migration, Children's Safety and Psychological Adjustment in Rural China: A Meta-Analysis. AB - Studies concerning left-behind children in rural China have shown that parental absence due to migration is associated with greater risk of child victimization and accidental injuries, and a range of psychosocial problems. The authors conducted this meta-analysis to determine the extent to which left-behind children are affected by parental migration, as compared to children in nonmigrant rural families. A comprehensive literature search was conducted, and 90 studies published before 2017 were included in the data synthesis and analysis. The results revealed that compared to non-left-behind children, rural left-behind children are generally more disadvantaged in regard to child safety ( d = 0.27) and psychological adjustment ( d = 0.25). The effect sizes, though interpreted as small, revealed that children in rural China are significantly affected by parental migration. Children's educational stage was a significant variable that moderated the effect sizes of child safety and psychological adjustment. The findings of the meta-analysis indicated that mother-only migration may have the most harmful effect on children. In terms of implications for interventions, the results suggest more attention should be given to rural left-behind children and to "mother-absent children" in particular. Future research is warranted to explore the association between left-behind children's psychological adjustment and their exposure to injury and victimization. PMID- 29333971 TI - Using Photovoice to Address Gender-Based Violence: A Qualitative Systematic Review. AB - The purpose of this article is to examine how photovoice research addresses gender-based violence (GBV) among individuals and communities that experience and witness GBV. Photovoice action research (PVAR) methods act as both an intervention and a research method by engaging participants in using photography to depict a topic of concern and in developing potential solutions. To date, there is not a published review of PVAR publications that focus on addressing GBV. This article is comprised of a qualitative systematic review of studies that use photovoice research methods to address GBV. This review is conducted in accordance with the Supplementary Guidance of the Cochrane handbook and results in the examination of 17 publications that meet inclusion criteria. The data synthesis engages grounded theory (GT) methods and results in the emergence of one primary category transgressing the violence and three subcategories illustrating the problem, caring for self and others, and harnessing community resources. The results of this review reveal research, practice, and policy implications for photovoice projects aimed at addressing GBV. PMID- 29333972 TI - Interventions in Health Settings for Male Perpetrators or Victims of Intimate Partner Violence. AB - BACKGROUND: Intimate partner violence (IPV) is common in patients attending health-care services and is associated with a range of health problems. The majority of IPV perpetrators are men, and a substantial minority of men are victims, yet health-care professionals have little evidence or guidance on how to respond to male patients who perpetrate or experience violence in their intimate relationships. METHODS: We conducted a systematic review to determine the effectiveness of interventions for male perpetrators or victims of IPV in health settings. Online databases, reference lists, Google Scholar, and gray literature were searched, and inclusion/exclusion criteria were applied. Narrative synthesis methods were used due to the heterogeneity of study types and outcome measures. RESULTS: Fourteen studies describing 10 interventions met our inclusion criteria: nine randomized controlled trials, four cohort studies, and one case-control study. Interventions were predominantly therapeutic in nature and many were conducted in alcohol treatment settings. CONCLUSION: Overall, the evidence for effectiveness of interventions in health-care settings was weak, although IPV interventions conducted concurrently with alcohol treatment show some promise. More work is urgently needed in health-care services to determine what interventions might be effective, and in what settings, to improve the response to male perpetrators or victims of IPV. PMID- 29333973 TI - Facilitators and Barriers to Child Sexual Abuse (CSA) Disclosures: A Research Update (2000-2016). AB - Identifying and understanding factors that promote or inhibit child sexual abuse (CSA) disclosures has the potential to facilitate earlier disclosures, assist survivors to receive services without delay, and prevent further sexual victimization. Timely access to therapeutic services can mitigate risk to the mental health of survivors of all ages. This review of the research focuses on CSA disclosures with children, youth, and adults across the life course. Using Kiteley and Stogdon's literature review framework, 33 studies since 2000 were identified and analyzed to extrapolate the most convincing findings to be considered for practice and future research. The centering question asked: What is the state of CSA disclosure research and what can be learned to apply to practice and future research? Using Braun and Clarke's guidelines for thematic analysis, five themes emerged: (1) Disclosure is an iterative, interactive process rather than a discrete event best done within a relational context; (2) contemporary disclosure models reflect a social-ecological, person-in-environment orientation for understanding the complex interplay of individual, familial, contextual, and cultural factors involved in CSA disclosure; (3) age and gender significantly influence disclosure; (4) there is a lack of a life-course perspective; and (5) barriers to disclosure continue to outweigh facilitators. Although solid strides have been made in understanding CSA disclosures, the current state of knowledge does not fully capture a cohesive picture of disclosure processes and pathways over the life course. More research is needed on environmental, contextual, and cultural factors. Barriers continue to be identified more frequently than facilitators, although dialogical forums are emerging as important facilitators of CSA disclosure. Implications for practice in facilitating CSA disclosures are discussed with recommendations for future research. PMID- 29333974 TI - Understanding the Relation Between Neighborhoods and Intimate Partner Violence: An Integrative Review. AB - Stemming in part from the lack of theory, predictors of the relationship between neighborhoods and intimate partner violence (IPV) are underidentified. Furthermore, few mediation studies exist that inductively build and deductively confirm theoretical frameworks. This article provides an integrative review of the literature, aiming to enhance the field's understanding of predictors and potential mechanisms that drive this relationship, using a combined theoretical model to guide the analysis. The integrative review was conducted using Whittemore and Knafl's systematic method for integrative reviews with articles published between 1995 and 2015. Findings indicate that macro-, exo-, and mesolevel predictors and mediators in the proposed model have modest empirical support; however, a number of concepts at each ecological level have yet to be fully researched. Results of this review suggest that a well-defined and integrative theoretical framework will enhance the current understanding of ecological research into IPV. Additionally, a comprehensive ecological approach to IPV intervention is likely to be more effective than employing solely an individual-level approach. Intervention implications are discussed. PMID- 29333975 TI - Toward a Better Understanding of Psychological Symptoms in People Confronted With the Disappearance of a Loved One: A Systematic Review. AB - OBJECTIVE: The disappearance of a loved one is claimed to be the most stressful type of loss. The present review explores the empirical evidence relating to this claim. Specifically, it summarizes studies exploring the prevalence and correlates of psychological symptoms in relatives of missing persons as well as studies comparing levels of psychopathology in relatives of the disappeared and the deceased. METHOD: Two independent reviewers performed a systematic search in PsychINFO, Web of Science, and Medline, which resulted in 15 studies meeting predefined inclusion criteria. Eligible studies included quantitative peer reviewed articles and dissertations that assessed psychopathology in relatives of missing person. RESULTS: All reviewed studies were focused on disappearances due to war or state terrorism. Prevalence rates of psychopathology were mainly described in terms of post-traumatic stress disorder and depression and varied considerably among the studies. Number of experienced traumatic events and kinship to the missing person were identified as correlates of psychopathology. Comparative studies showed that psychopathology levels did not differ between relatives of missing and deceased persons. CONCLUSIONS: The small number of studies and the heterogeneity of the studies limit the understanding of psychopathology in those left behind. More knowledge about psychopathology postdisappearance could be gained by expanding the focus of research beyond disappearances due to war or state terrorism. PMID- 29333976 TI - Psychological Trauma in the Context of Familial Relationships: A Concept Analysis. AB - Many forms of psychological trauma are known to develop interpersonally within important relationships, particularly familial. Within the varying theoretical constructs of psychological traumas, and distinct from the processes of diagnosis, there is a need to refine the scope and definitions of psychological traumas that occur within important familial relationships to ensure a cohesive evidence base and fidelity of the concept in application to practice. This review used a philosophical inquiry methodology of concept analysis to identify the definitions, antecedents, characteristics, and consequences of the varying conceptualizations of psychological trauma occurring within important relationships. Interactions between concepts of interpersonal trauma, relational trauma, betrayal trauma, attachment trauma, developmental trauma, complex trauma, cumulative trauma, and intergenerational trauma are presented. Understanding of the discrete forms and pathways of transmission of psychological trauma between individuals, including transgenerationally within families, creates opportunities for prevention and early intervention within trauma-focused practice. This review found that concepts of psychological trauma occurring within familial relationships are not exclusive of each other but overlap in their encompassment of events and circumstances as well as the effect on individuals of events in the short term and long term. These traumas develop and are transmitted in the space between people, both purposefully and incidentally, and have particularly profound effects when they involve a dependent infant or child. Linguistic and conceptual clarity is paramount for trauma research and practice. PMID- 29333977 TI - The Prevalence of Self-Reported Elder Abuse Among Older Women in Community Settings: A Systematic Review and Meta-Analysis. AB - The abuse of older women appears to be a significant problem. Developing a better understanding of the extent of the problem is an important step toward preventing it. We conducted a global systematic review and meta-analysis of existing prevalence studies, in multiple languages, that occurred in the community settings from inception to June 26, 2015, in order to determine the extent of abuse against women aged 60 years and over. To disentangle the wide variations in prevalence estimates, we also investigated the associations between prevalence estimates and studies' demographic and methodological characteristics. A total of 50 studies were included in the meta-analysis. The combined prevalence for overall elder abuse in the past year was 14.1% (95% confidence interval (CI) [11.0, 18.0]). Pooled prevalence for psychological abuse was 11.8% (95% CI [9.2%, 14.9%]), neglect was 4.1% (95% CI [2.7%, 6.3%]), financial abuse was 3.8% (95% CI [2.5%, 5.5%]), sexual abuse was 2.2% (95% CI [1.6%, 3.0%]), and physical abuse was 1.9% (95% CI [1.2%, 3.1%]). The studies included in the meta-analysis for overall abuse were heterogeneous indicating that significant differences among the prevalence estimates exist. Significant associations were found between prevalence estimates and the following covariates: World Health Organization defined regions, countries' income classification, and sample size. Together, these covariates explained 37% of the variance. Although robust prevalence studies are sparse in low- and middle-income countries, about 1 in 6, or 68 million older women experience abuse worldwide. More work is needed to understand the variation in prevalence rates and implications for prevention. PMID- 29333978 TI - The Prevalence of Domestic Violence Among Pregnant Women in Nigeria: A Systematic Review. AB - OBJECTIVE: To identify, appraise, and synthesize research evidence on the prevalence of domestic violence (DV) among pregnant women in Nigeria. METHOD: We conducted a systematic review of all published studies between April 2004 and June 2016. Comprehensive searches were conducted on electronic databases such as PubMed, CINAHL, Global Health, MEDLINE, PsycINFO, Directory of Open Access Journals, Google Scholar, and electronic libraries of the authors' institution. Identified articles were screened in two stages against the inclusion criteria with titles and abstract screened first followed by full-text screening. Selected articles were assessed using the "guidelines for evaluating prevalence studies," and findings were synthesized narratively. RESULTS: Among 19 studies that met the inclusion criteria, two articles were excluded due to low methodological quality and 17 articles were included in the review. The prevalence of DV during pregnancy in Nigeria ranged between 2.3% and 44.6% with lifetime prevalence rates ranging between 33.1% and 63.2%. Physical, sexual, psychological, and verbal abuses were the most frequent types of DV reported in this review. The most common perpetrators were husbands, as reported in 11 of the 17 studies. Pregnant women between the ages of 20 and 30 years were the most common victims of DV. CONCLUSION: Our review suggests high prevalence of DV in pregnancy among women in Nigeria and higher lifetime prevalence. However, determining an overall, synthesized accurate prevalence rate of DV within this population based on existing evidence presents a challenge. The findings have important implications for stakeholders such as planners, policy makers, maternity care providers, and researchers in public health and social policy at national, regional, and international levels toward combating the issue. PMID- 29333979 TI - Effect of anoxic to aerobic duration ratios on nitrogen removal and nitrous oxide emission in the multiple anoxic/aerobic process. AB - Characteristics of nitrogen removal and nitrous oxide (N2O) emission in the multiple anoxic/aerobic (AO) process were examined in three sequencing batch reactors (SBRs) with different anoxic durations (50 min, SBRH; 40 min, SBRM; 30 min, SBRL) and a fixed aerobic duration of 30 min. The highest total inorganic nitrogen removal percentage of 85.8% was obtained in SBRH, while a minimum N2O emission factor of 1.9% was obtained in SBRL. During nitrification batch experiments, the N2O emission factor and emission rate were both lower in SBRH than SBRL. More N2O production was obtained during denitrification in SBRH when denitrifiers utilized intracellular organic carbon. Nitrite reduction by heterotrophs was the main N2O production pathway during simultaneous nitrification and denitrification in SBRH and SBRL, with the N2O emission factor of 31.3% and 36.3%, respectively. Adequate anoxic duration and lowering aerobic nitrite concentrations could be adopted to mitigate N2O emission in the multiple AO process. The dominant microorganisms at the phylum level in all reactors were Proteobacteria and Bacteroidetes, while the abundance of Nitrospira was the highest in SBRH with relatively lowest dissolved oxygen concentrations. PMID- 29333981 TI - Co-Occurring Substance Use, PTSD, and IPV Victimization: Implications for Female Offender Services. AB - The co-occurrence of substance use disorders (SUDs) and post-traumatic stress disorder (PTSD) among women who have been the victims of intimate partner violence (IPV) is complex and causal associations cannot be assumed. Although the presence of co-occurring disorders among IPV victims is a well-established research finding, there is a need for improved understanding of their prevalence and related mental health treatment requirements among female offenders. We review research indicating that service providers working with IPV victims can expect to encounter women with extensive concurrent problems and examine evidence for integrated treatment for SUD, PTSD, and IPV. We propose an outline for assessing and treating SUD and PTSD among female offenders who have experienced IPV victimization. We intend this review to build on previous calls in the co occurring disorders literature and help integrate the research and treatment evaluation literatures in a way that points to practical implications for policy and practice in female offender services. PMID- 29333980 TI - Percentages of PD-1+CD4+T cells and PD-L1+DCs are increased and sPD-1 level is elevated in patients with immune thrombocytopenia. AB - The present study is to measure the expression of programmed death (PD)-1 / programmed death ligand-1 (PD-L1) negative costimulatory molecules, soluble format sPD-1 in patients with immune thrombocytopenia (ITP), and to investigate their correlation with the secretion of cytokines. A total of 35 patients with ITP were included in the present study. Twenty healthy subjects who received physical examination at our hospital were included as control group. Peripheral blood was collected from all ITP patients and healthy subjects. Flow cytometry was performed to determine the percentages of PD-1+CD4+T cells and PD-L1+DCs in ITP patients and healthy subjects. Enzyme-linked immunosorbent assay was performed to measure the concentrations of interferon (IFN)-gamma, interleukin (IL)-17 and sPD-1 in peripheral blood from ITP patients and healthy subjects. Percentages of PD-1+CD4+T cells and PD-L1+DCs in peripheral blood from ITP patients before treatment were significantly higher than that from healthy subjects, but were not different from those after treatment. Serum concentrations of IFN-gamma, IL-17 and sPD-1 in ITP patients before treatment were significantly higher than those in healthy subjects, and these concentrations were significantly reduced after treatment. The concentration of sPD-1 was positively correlated with the concentration of IFN-gamma, and negatively correlated with platelet count. Percentages of PD-1+CD4+T cells and PD-L1+DCs in ITP patients are higher than those in healthy subjects, but elevated sPD-1 concentration in the blood blocks PD-1/PD-L1 signaling pathway, leading to unaffected Th cell function. Elevated concentrations of IFN-gamma and IL-17 in the blood may participate in the occurrence and development of ITP. PMID- 29333982 TI - Violence Against Young Women in Non-urban Areas of Australia: A Scoping Review. AB - Violence against women is globally prevalent and harmful to women's health and well-being. Younger women are at higher risk of abuse, especially those from non urban areas who may face specific barriers to disclosure and support. The aim of this review was to map the breadth and nature of the "violence against women" literature particular to young non-urban Australian women and identify research gaps to inform future research with young people. A comprehensive scoping review methodology, as outlined by Arksey and O'Malley, was adopted. English language, peer-reviewed articles were identified from five databases between January 2000 and July 2015. Grey literature was also examined. Inclusion criteria for the review included young women (15-24 years) from non-urban areas of Australia. Twenty-four full-text articles were included in this review. Themes identified include prevalence and type of abuse, experiences and response to violence, and the consequences of abuse. Recommendations from the review which are relevant to a global audience include the need for improved service access, improved data collection on the prevalence of violence, and a focus on more research with young women in non-urban areas. There is limited research on violence against young women living in non-urban areas of Australia. Evidence to date consists of predominantly quantitative data generated from general population surveys. There is a lack of qualitative research on this topic, and we argue that more is needed to gain a better understanding of the violence that young women experience. PMID- 29333983 TI - Intimate Partner Violence in Male Survivors of Child Maltreatment: A Meta Analysis. AB - Intimate partner violence (IPV) is a major public health concern. Yet, despite an increasingly extensive literature on interpersonal violence, research on male victims of IPV remains sparse and the associations between different forms of child maltreatment (CM) and IPV victimization and perpetration in men remains unclear. The present meta-analysis evaluated five different forms of CM (sexual, physical, and psychological abuses, neglect, and witnessing IPV) as they predicted sexual, psychological, and physical IPV perpetration and victimization in men. Overall, most available studies examined men as perpetrators of IPV, whereas studies of victimization in men were relatively scarce. Results reveal an overall significant association ( r = .19) between CM and IPV. The magnitude of this effect did not vary as a function of type (perpetration vs. victimization) or form (sexual, psychological, or physical) of IPV. Although all forms of CM were related to IPV, with effect sizes ranging from .05 (neglect and IPV victimization) to .26 (psychological abuse and IPV victimization), these associations varied in magnitude according to the type of CM. Findings suggest the importance of expanding research on CM and IPV to include a range of different kinds of abuse and neglect and to raise concerns about the experience of men as both victims and perpetrators of IPV. PMID- 29333984 TI - A Methodological Review and Critique of the "Intergenerational Transmission of Violence" Literature. AB - Exposure to interpersonal or interparental violence (EIPV) and child abuse and maltreatment (CAM) are associated with an increased risk of maladaptive outcomes, including later involvement in adulthood intimate partner violence (IPV; often referred to as the theory of intergenerational transmission of violence). Recent meta-analyses, however, have documented a weak effect size when examining this association. By focusing on young adulthood, a development stage in which identity development and romantic relationship formation are salient tasks, we can provide insight into the association between EIPV, CAM, and IPV. Guided by the methodological critiques from the IPV and EIPV literatures, the present study reviewed the methodology used in 16 studies (published between 2002 and 2016) that tested the theory of intergenerational transmission of violence. The review study focused on how EIPV, CAM, and young adult dating violence were measured and analyzed, with the initial goal of better understanding how methodological decision informed the study's findings. Ultimately, we determined that there was simply too much methodological variability and yet too little methodological complexity to truly inform a review and discussion of the results; therefore, our review solely focused on the study's methodological decisions. Based on our review, we suggest that both of these challenges, too much variability and too little complexity, hinder our ability to examine the theory of intergenerational transmission of violence. Future research must strike a balance between methodological consistency and complexity to better understand the intricate nuances of IPV experiences and inform practice. PMID- 29333985 TI - A Systematic Review of Interventions for Women Parenting in the Context of Intimate Partner Violence. AB - Intimate partner violence (IPV) victimization is widespread among women with children and has negative consequences for both women's and children's well being. Despite mixed evidence regarding the effect of IPV on women's parenting ability and behaviors, there is an increasing focus on mothering in the context of IPV, particularly among the child welfare and child protection systems. To help respond to this increasing focus, several interventions have been developed that specifically target parenting among IPV-affected women. Given the growing numbers of these interventions, a comprehensive review is needed to help elucidate the approaches that are most effective in meeting the needs of IPV affected women and children. Therefore, we conducted an in-depth systematic review of the literature to examine the approaches and effects of interventions designed to address aspects of parenting among IPV-affected women. We identified 26 articles concerned with 19 distinct interventions for review. We found substantial heterogeneity in intervention delivery, format, length, and focus. We noted several limitations of the existing studies in terms of study sample, measures, design, and implementation. Given the heterogeneity of the existing interventions and the limitations of the current research base, it is not yet clear which interventions or intervention components are most effective in addressing the unique needs of women parenting in the context of IPV. Further research is needed to address these limitations, and professionals working with IPV-affected families should be aware that current services may not meet women's and children's needs. PMID- 29333986 TI - The Prevalence and Correlates of Partner Violence Used and Experienced by Adults With Intellectual Disabilities: A Systematic Review and Call to Action. AB - It has been suggested that individuals with intellectual disabilities (IDs) are at increased risk of violence perpetration and victimization. A systematic review was undertaken to identify and critically evaluate the existing empirical research concerning the use and experience of partner violence by adults with IDs. In total, six poor-quality articles were identified: five of which adopted qualitative methods and one of which adopted a mixed-methods approach, comprising a total of 93 participants (48 women, 45 men: 1 perpetrator, 92 victims). The qualitative data were extracted from the studies and synthesized. A partner violence victimization rate of 60% was identified in one nonrepresentative sample. Two superordinate themes emerged from the qualitative data: nature of partner violence experience and help seeking. Children were the cross-cutting theme within the two superordinate themes. Participants reported experiencing a range of physical, emotional, and sexual violence leading to serious injury and psychological consequences. Participants reported experiences of positive and negative help-seeking reactions from professionals and specific requirements of services for victims with IDs. Children were identified as involved in the experience of abuse, the impact of abuse, and decisions to seek help. The findings indicate that training of clinical staff to detect partner violence is needed. In addition, adults with IDs need education concerning healthy relationships. Research is needed to better understand the difference between "challenging behavior" that is behavior displayed by an individual which challenges services, family members, and carers. Such behavior is more common in individuals with a severe ID for whom it would not be appropriate to be dealt with through the criminal justice system, and partner violence, in order to develop appropriate interventions for victims and perpetrators with ID. PMID- 29333987 TI - Comparing Long-Term Placement Outcomes of Residential and Family Foster Care: A Meta-Analysis. AB - This study presents findings from three separate meta-analyses investigating differences between children placed in residential care and in family foster care with regard to three outcomes: internalizing behaviors, externalizing behaviors, and perception of care. Based on publications from the last 20 years, a total of 23 studies were included. The total sample consisted of 13,630 children in care, with 7,469 from foster care and 6,161 from residential care. The results from this study indicated that children in foster care had consistently better experiences and less problems across the three outcomes as compared to children in residential care. Analyses did not reveal evidence of publication bias, and sensitivity analyses also suggested that results were not influenced by individual studies. Additionally, moderation analyses revealed that the differences between foster and residential care could vary depending on certain factors such as the publication year, the gross domestic product of the country, and the length of care. The implications of differences in outcomes between the two placements are discussed. PMID- 29333988 TI - Male IPV Perpetrator's Perspectives on Intervention and Change: A Systematic Synthesis of Qualitative Studies. AB - OBJECTIVE: To add to our understanding of change processes by analyzing perpetrators' perspectives on intervention. METHOD: Fourteen databases were searched and 27 articles reporting relevant qualitative findings were identified. Analytic coding was applied across the findings and discussion sections of all 27 study reports to form an interpretive account of the data set. Studies were also grouped according to their perceived theoretical standpoints, and a summary of themes in each grouping is presented. FINDINGS: Study participants were largely positive about their experiences in intervention; new learning such as conflict interruption techniques and new communication skills were commonly cited benefits. Perpetrators attend perpetrator intervention programs with a range of motivations, ranging from a determination to change who they are, to a determination to avoid a custodial sentence. The most common barriers to change, found in this analysis, were cognitive distortions, emotional dysregulation, gendered social constructions, and self-esteem issues. CONCLUSION: Further qualitative investigation, of rigor, with the intention-to-treat population of intimate partner violence perpetrators involved in perpetrator programs is needed. At this point, we would venture that qualitative research, with perpetrators, underlines the precept that formidable barriers to change exist in this population. The centrality of group work to perpetrator interventions should be reconsidered in light of the complexity of the change task and in light of the heterogeneity of this population. PMID- 29333989 TI - Sexual Violence Victimization Among College Females: A Systematic Review of Rates, Barriers, and Facilitators of Health Service Utilization on Campus. AB - To date, little work specifically addresses empirical studies concerning barriers and facilitators to health service use among college female sexual violence victims. The following objectives were addressed: (1) analyze studies of college aged women who have been victims of sexual violence to examine the frequency and moderating characteristics of utilization of university-based resources available, (2) identify inconsistencies and gaps in the literature concerning sexual victimization and service utilization, and (3) provide next steps for researchers and clinical care coordinators. Six electronic databases were searched from 1990 to May 2016. Inclusion criteria for the review were (1) university or college setting or sample, (2) empirical design, and (3) inclusion of some discussion or measurement of health service use. Following preferred reporting items for systematic reviews and meta-analyses (PRISMA) procedures, 22 articles were identified for the review. Although prevalence rates of sexual victimization were high (4.7-58%), rates of service utilization were lower (0 42%). There were significant discrepancies between hypothetical use of services and actual rates of service use. Identified barriers included feelings of shame, guilt and embarrassment, not wanting friends and family to find out, and thinking the victimization was not serious enough to report. Identified facilitators included acknowledging the sexual violence victimization as a crime, receiving encouragement from friends and family to utilize health services, and receiving a positive response during the initial informal disclosure. Finally, measurement of victimization was inconsistent across studies. Recommendations are offered for college campus prevention programming and future research. PMID- 29333990 TI - Child Sexual Abuse: Toward a Conceptual Model and Definition. AB - The problem of defining "child sexual abuse" (CSA), and the need to define this concept, has been recognized by major policy bodies and leading researchers since the 1970s. Recent demands for a more theoretically robust, explicit definition of CSA show this challenge remains urgent. In this article, we identify problems caused by variance in definitions of CSA for five domains: research and knowledge formation, legal frameworks and principles, prevention efforts, policy responses, and the establishment of social norms. We review and analyze definitions used in leading international epidemiological studies, national and international policy documents, social science literature, and legal systems in the United States, Canada, and Australia to demonstrate the continuing use of different concepts of CSA and identify key areas of conceptual disagreement. Informed by our literature review, we use a methodology of conceptual analysis to develop a conceptual model of CSA. The purpose of this model is to propose a more robust, theoretically sound concept of CSA, which clarifies its defining characteristics and distinguishes it from other concepts. Finally, we provide operational examples of the conceptual model to indicate how it would translate to a classificatory framework of typologies of acts and experiences. A sound conceptual model and classificatory system offers the prospect of more appropriate and effective methods of research, response, regulation, and prevention. While total consensus is unattainable, this analysis may assist in developing understanding and advancing more coherent approaches to the conceptual foundation of CSA and its operationalization. PMID- 29333991 TI - Evaluation of a portable gas chromatograph with photoionization detector under variations of VOC concentration, temperature, and relative humidity. AB - The objective of this present study was to evaluate the performance of a portable gas chromatograph-photoionization detector (GC-PID), under various test conditions to determine if it could be used in occupational settings. A mixture of 7 volatile organic compounds (VOCs)-acetone, ethylbenzene, methyl isobutyl ketone, toluene, m-xylene, p-xylene, and o-xylene-was selected because its components are commonly present in paint manufacturing industries. A full factorial combination of 4 concentration levels (exposure scenarios) of VOC mixtures, 3 different temperatures (25 degrees C, 30 degrees C, and 35 degrees C), and 3 relative humidities (RHs; 25%, 50%, and 75%) was conducted in a full size controlled environmental chamber. Three repetitions were conducted for each test condition allowing for estimation of accuracy. Time-weighted average exposure data were collected using solid sorbent tubes (Anasorb 747, SKC Inc.) as the reference sampling medium. Calibration curves of Frog-4000 using the dry gases showed R2 > 0.99 for all analytes except for toluene (R2 = 0.97). Frog-4000 estimates within a test condition showed good consistency for the performance of repeated measurement. However, there was ~41-64% reduction in the analysis of polar acetone with 75% RH relative to collection at 25% RH. Although Frog-4000 results correlated well with solid sorbent tubes (r = 0.808-0.993, except for toluene) most of the combinations regardless of analyte did not meet the <25% accuracy criterion recommended by NIOSH. The effect of chromatographic co-elution can be seen with m, p-xylene when the results are compared to the sorbent tube sampling technique with GC-flame ionization detector. The results indicated an effect of humidity on the quantification of the polar compounds that might be attributed to the pre-concentrator placed in the selected GC-PID. Further investigation may resolve the humidity effect on sorbent trap with micro GC pre concentrator when water vapor is present. Although this instrument does not fulfill the accuracy criterion specified in the NIOSH technical report No. 2012 162, it can be used as a screening tool for range finding monitoring with dry gases calibration in the occupational setting rather than compliance monitoring. PMID- 29333992 TI - Insecure Adult Attachment and Child Maltreatment: A Meta-Analysis. AB - Extant evidence has shown that insecure adult attachment is related to dysfunctional parenting styles that heighten parents' risk of child maltreatment. However, there is a lack of studies appraising the evidence for the association between insecure adult attachment and child maltreatment. This meta-analytic study examined the relationship between parents' adult attachment and child maltreatment perpetration/child abuse potential. Studies examining the relationship between parents' adult attachment and child maltreatment/child abuse potential published before February 2017 were identified through a systematic search of online databases. In total, 16 studies ( N = 1,830) were selected. Meta analysis based on random-effects models shows a significant positive association between insecure attachment and child maltreatment (pooled effect size: odds ratio [ OR] = 2.93, p = .000). Subgroup analyses show insecure attachment was more strongly associated with failure to thrive ( OR = 8.04, p = .000) and filicide ( OR = 5.00, p < .05). Medium effect sizes were found for subgroup analyses on insecure romantic attachment ( OR = 3.76, p = .000), general attachment ( OR = 3.38, p = .000), attachment to own child ( OR = 3.13, p = .001), and to own parents ( OR = 2.63, p = .000) in relation to child maltreatment. PMID- 29333993 TI - History of environmental and occupational health. PMID- 29333994 TI - The Association Between Serious Mental Health Problems and Violence: Some Common Assumptions and Misconceptions. AB - The media, the general public, and politicians often emphasize that mental illness is a precursor and a cause of violence, particularly emphasizing an assumed relationship between mental illness, including psychopathy and psychosis, and the use of guns to commit violence. We report which individuals with serious mental health problems have an increased risk to commit violence (including gun violence). Second, we answer the question to what extent serious mental health problems explain most violence and especially gun-related violence. And what is the opinion of experts on these questions? Third, we review which effective screening instrument can help to identify individuals with mental health problems who are at risk to carry a gun and commit violence. For policy makers and legislators, this article points out that most psychiatric disorders are not related to violence, with some exceptions such as schizophrenia and bipolar disorder, and often only in conjunction with substance use. We show that the attributable risk of mental illness to explain violence in general is low. We also emphasize that conduct disorder in late childhood or adolescence is a better predictor of violence than is mental illness at a later age. Empirically based screening methods to identify individuals with mental health problems who are prone to violence appear to have limited utility. Implications are discussed for clinicians and practitioners working in the justice system, researchers, and policy makers. PMID- 29333995 TI - Violence Against International Students: A Critical Gap in the Literature. AB - Despite the growing trend on college campuses to increase their international student body, this population is largely left out of research due to the complexity they bring to the research process compared to their domestic counterparts. This is particularly true for the existing research on campus sexual violence; thus, there is no research-based indication that international students, let alone international graduate students, would face victimization risks on campus in the same way the extant literature identifies for domestic undergraduates. The existing research on international students indicates that their experiences are different than their domestic counterparts, and the sparse literature on graduate students indicates their experiences are different from their undergraduate counterparts. A specific focus on the intersection of these two identities, international graduate students, is almost completely absent from the literature. This research review highlights key research that provides foundational knowledge for the experience of international students and international graduate students with regard to their vulnerability to sexual violence. The author organizes the extant literature into three major areas that inform the overarching research topic: (1) international student experiences, (2) victimization, and (3) campus culture. Basic findings indicate that there are limitations in extrapolating previous research findings on campus sexual violence to this population, calling for a need to focus specifically and intentionally on this population of students. The objective of this article is to review the current state of knowledge about the risk and vulnerability of international students to sexual violence and victimization and to address the directions for future research. PMID- 29333996 TI - Energy Expenditure and Intensity of Active Video Games in Children and Adolescents. AB - PURPOSE: This study aimed to compare the energy expenditure and intensity of active video games to that of treadmill walking in children and adolescents. METHOD: Seventy-two boys and girls (aged 8-13 years) were recruited from local public schools. Energy expenditure and heart rate were measured during rest, during 3-km/hr, 4-km/hr, and 5-km/hr walks, and during active games (Adventure, Boxing I, Boxing II, and Dance). During walking and active games, we also assessed physical activity using an accelerometer. RESULTS: The energy expenditure of the active games Adventure, Boxing I, Boxing II, and Dance was similar to that of treadmill walking at 5 km/hr in boys and girls. Heart rate was significantly higher for the game Adventure compared with walking at 3 km/hr, 4 km/hr, and 5 km/hr and the game Dance in both genders. The heart rate of girls during the games Adventure and Dance was significantly higher compared with boys. There was a statistically significant difference (p < .05, with an effect size ranging from 0.40 to 3.54) in the counts.min-1, measured through accelerometry, between activities. CONCLUSION: XBOX 360 Kinect games provide energy expenditure and physical activity of moderate intensity for both genders. The use of active video games can be an interesting alternative to increase physical activity levels. PMID- 29333997 TI - Understanding the Relationship Between Male Gender Socialization and Gender-Based Violence Among Refugees in Sub-Saharan Africa. AB - Gender-based violence (GBV) in humanitarian emergencies is progressively recognized as a global public health problem. Detrimental gender norms influence male perpetrated GBV against women, and social and structural contexts of forced migration and camp resettlement contribute to problematic gender norm development. The review sought to elucidate the dynamics that link gender socialization among male youth in sub-Saharan Africa with violent sexual behaviors. Two concepts were explored: (1) male gender socialization in sub Saharan Africa related to GBV perpetration patterns and (2) the effect of forced migration on male socialization and GBV. We reviewed articles using a standard systematic review methodology, searching academic databases for peer-reviewed articles, and contacting experts for gray literature. Our initial search identified 210 articles. We manually reviewed these, and 19 met the review inclusion criteria. We identified 20 variables from the first concept and 18 variables from the second. GBV perpetration by male youth is positively associated with social pressures as well as cultural and religious beliefs. Amid forced migration, personal, societal, and cultural preexisting gender inequalities are often amplified to encourage GBV perpetration. The literature revealed aspects of culture, language, role modeling, religion, and the context of violence as important factors that shape young men's perspectives regarding the opposite sex and gender relations as well as sexual desires and dominance. Overall, though, literature focusing on male socialization and GBV prevention is limited. We made recommendations for future studies among refugee male youth in order to better understand these relationships. PMID- 29333998 TI - When Older People Are Violent or Abusive Toward Their Family Caregiver: A Review of Mixed-Methods Research. AB - What happens when family caregivers experience violence and abuse from the older person for whom they care? Although this issue has received little global attention, it is relevant to researchers, practitioners, and policy makers working across the intersecting fields of older age care and medicine, adult protection and safeguarding, and domestic and intimate partner violence. To date, these fields have generated diverse explanations of violence and abuse in older age illness and how best to respond to it. This article reports the findings of a systematic literature review of 18 quantitative, qualitative, and mixed-methods studies that investigated violent and abusive behavior by older people toward their family caregivers. The review identified three central themes in the literature: (1) There are inconsistent definitions and measurements used in research about harmful, violent, and abusive behavior toward family caregivers. (2) Violent and abusive behavior toward caregivers is a sensitive and hidden topic that poses practical and methodological challenges for researchers. (3) There is some evidence to suggest that people who were violent and abusive in their earlier life-or who had a poor relationship with their family member in the past-are more likely to continue to experience violence and abusive behavior in later life. There were two central ways in which violence and abuse were conceptualized and investigated: as a "symptom of illness" or as an "act of abuse" and we present a visual map of the relationship between these two conceptualizations drawn from our analysis of the literature. We conclude by discussing the implications of the findings and recommend future directions for practice, research, and policy to support affected families. PMID- 29333999 TI - Consequences of Elder Abuse and Neglect: A Systematic Review of Observational Studies. AB - This article presents the results of a systematic review of the consequences of elder abuse and neglect (EAN). A systematic search was conducted in seven electronic databases and three sources of gray literature up to January 8, 2016, supplemented by scanning of citation lists in relevant articles and contact with field experts. All observational studies investigating elder abuse as a risk factor for adverse health outcomes, mortality, and health-care utilization were included. Of 517 articles initially captured, 19 articles met our inclusion criteria and were analyzed. Two reviewers independently performed abstract screening, full-texts appraisal, and quality assessment using the Newcastle Ottawa Scale. Across 19 studies, methodological heterogeneity was a prominent feature; seven definitions of EAN and nine measurement tools for abuse were employed. Summary of results reveals a wide range of EAN outcomes, from premature mortality to increased health-care consumption and various forms of physical and psychological symptoms. Higher risks of mortality emerged as the most credible outcome, while the majority of morbidity outcomes originated from cross-sectional studies. Our findings suggest that there is an underrepresentation of older adults from non-Western populations and developing countries, and there is a need for more population-based prospective studies in middle- and low-income regions. Evidence gathered from this review is crucial in upgrading current practices, formulating policies, and shaping the future direction of research. PMID- 29334000 TI - Predictors of Interpersonal Violence in the Household in Humanitarian Settings: A Systematic Review. AB - Interpersonal violence against women and children has increasingly been recognized as a public health priority in humanitarian emergencies. However, because the household is generally considered a private sphere, violence between family members remains neglected. A systematic literature review was conducted to identify predictors of household violence in humanitarian emergencies. PubMed, Web of Science, and Scopus were searched from January 1, 1998, to February 16, 2016. A predictor was defined as any individual, household, or community-level exposure that increases or decreases the risk associated with physical, sexual, or emotional interpersonal violence between two or more people living together. All studies reporting on quantitative research were eligible for inclusion. Results were analyzed using qualitative synthesis. Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines were followed as applicable. The search strategy resulted in 2,587 original records, of which 33 studies met inclusion criteria. Thirty-two of the 33 studies used a cross-sectional design. This was the first known systematic review of predictors of household violence in humanitarian settings. The household framework drew attention to several factors that are associated with violence against both women and children, including conflict exposure, alcohol and drug use, income/economic status, mental health/coping strategies, and limited social support. There is a need for longitudinal research and experimental designs that can better establish temporality between exposures and household violence outcomes, control for confounding, and inform practice. In the interim, programmers and policy makers should try to leverage the predictors identified by this review for integrated violence prevention and response strategies, with the important caveat that ongoing evaluation of such strategies is needed. PMID- 29334001 TI - Integrated Multicomponent Interventions for Safety and Health Risks Among Black Female Survivors of Violence: A Systematic Review. AB - The epidemic of violence disproportionately affects women, including Black women. Black women survivors of violence have been found to face multiple safety and health issues such as depression, post-traumatic stress disorder, HIV, and poor reproductive health. Many health issues co-occur, and this co-occurrence can be associated with additional safety and health-related challenges for survivors. Consequently, there is a need for multicomponent interventions that are designed to concurrently address multiple health issues commonly faced by Black survivors of violence. This systematic review of literature determines the efficacy of various strategies used in the existing evidence-based multicomponent interventions on violence reduction, promotion of reproductive health, reduction in risk for HIV, reduction in levels of stress, and improvement in mental health. Sixteen intervention studies were identified. Examples of components found to be efficacious in the studies were safety planning for violence, skill building in self-care for mental health, education and self-regulatory skills for HIV, mindfulness-based stress reduction for reducing stress, and individual counseling for reproductive health. Although some strategies were found to be efficacious in improving outcomes for survivors, the limitations in designs and methods, and exclusive focus on intimate partner violence calls for more rigorous research for this population, particularly for Black survivors of all forms of violence. There is also need for culturally responsive multicomponent interventions that account for diversity among Black survivors. PMID- 29334002 TI - Concordance Between Parents in Perpetration of Child Mistreatment: How Often Is It by Father-Only, Mother-Only, or by Both and What Difference Does It Make? AB - Research on child mistreatment tends to focus on the mother or the father as the abusing parent, even though there is wide agreement that both theory and practice should deal with child maltreatment as a family system problem. Most children have the benefit or the risk of more than one caretaker for substantial periods of their lives, most often two parents or stepparents. This article is intended to illustrate the value of research which uses concordance analysis (CA) to identify children who experienced three dyadic concordance types (DCTs) of mistreatment: father-only, mother-only, or both parents, including single-parent combinations of caretakers. A concordance approach that identifies possible abusers in addition to the presenting parent using the three DCTs is a practical first step toward a family system perspective to enhance child abuse theory, research, and practice. PMID- 29334003 TI - Removing Firearms From Those Prohibited From Possession by Domestic Violence Restraining Orders: A Survey and Analysis of State Laws. AB - Under federal and many state laws, persons under domestic violence restraining orders (DVROs) are prohibited from possession of firearms. Using multiple sources and a Lexis Nexis search, we developed a list of state laws pertaining to the relinquishment or removal of firearms from persons prohibited from possession by DVROs. After downloading the text of each law, we conducted a legal analysis to enumerate provisions of the laws specifying implementation. We found 49 laws in 29 states and Washington, DC. The laws were conceptualized as instructions to the court, the respondent, and law enforcement. We detail the content of each state's law, including such elements as whether it applies to ex parte DVROs; whether certain criteria must be met, such as previous use of a firearm in domestic violence or lack of an employment exemption, before the law can be applied; and whether the application of the law is mandatory. We also detail instructions to the respondent regarding to whom firearms may be relinquished, whether the respondent must seek permission to transfer the firearm to a third party, and the time by which dispossession must occur. Finally, whether law enforcement bears the responsibility for removing the firearm or whether the law gives the court the authority to order a search and seizure for the firearms is discussed. The purpose of the research is to provide an overview of these state laws that can be used by key stakeholders in legislative, judicial, advocacy, or research roles. Implications are discussed. PMID- 29334004 TI - Examining residence status as a risk factor for health risk behaviors among college students. AB - OBJECTIVE: The current study is aimed to evaluate college student residence as a unique risk factor for a range of negative health behaviors. PARTICIPANTS: We examined data from 63,555 students (66% females) from 157 campuses who completed the National College Health Assessment Survey in Spring 2011. METHODS: Participants answered questions about the frequency of recent use of alcohol, tobacco, marijuana, and illicit drugs, as well as sexual risk behavior in the last 30 days. Sexual risk behaviors were operationalized as having unprotected vaginal sex (yes/no) and the number of sexual partners. RESULTS: Logistic regression analyses revealed that living off-campus is a unique predictor of alcohol, tobacco, marijuana, and illicit drug use, as well as engaging in unprotected sex and a greater number of sexual partners (all ps <. 01). CONCLUSIONS: Students living off-campus exhibit more substance use and sexual risk behaviors than students living on-campus, independent of gender, age, or race. PMID- 29334006 TI - The Intersection of Firearms and Intimate Partner Homicide in 15 Nations. AB - Intimate partners commit approximately one in three homicides against women worldwide. Little is known about situational factors that contribute to intimate partner homicides (IPH) and how they may differ across nations. This article provides a cross-national exploration of one situational factor, the use of firearms in the commission of homicides, and considers whether nations have laws designed specifically to keep firearms out of the hands of batterers. We conducted a systematic search of peer-reviewed research and governmental and nongovernmental reports for data on weapon use in IPH. Data were located for 15 nations and subnational areas, which varied from firearms being involved in no IPHs in Fiji to 59% in Antalya, Turkey. Seven nations have legislation that addresses gun ownership as it relates to those who have been charged with, convicted of, or show a propensity toward the commission of intimate partner violence. These laws vary in whether domestic violence is a factor considered in whether to allow firearm ownership or whether it served to disqualify ownership. Due to the small number of nations for which data on weapon use in IPH were located, we did not conduct any hypothesis testing. There is a need for detailed homicide surveillance systems among nations so that researchers can explore the epidemiology of these homicides and ultimately identify opportunities for intervention. PMID- 29334005 TI - Physiological Correlations With Short, Medium, and Long Cycling Time-Trial Performance. AB - PURPOSE: Several studies have demonstrated that physiological variables predict cycling endurance performance. However, it is still unclear whether the predictors will change over different performance durations. The aim of this study was to assess the correlations between physiological variables and cycling time trials with different durations. METHODS: Twenty trained male cyclists (maximal oxygen uptake [VO2max] = 60.5 +/- 5.6 mL/kg/min) performed 4 separate experimental trials during a 2-week period. Cyclists initially completed an incremental exercise test until volitional exhaustion followed by 3 maximal cycling time trials on separate days. Each time trial consisted of 3 different durations: 5 min, 20 min, and 60 min performed in a randomized order. RESULTS: The main results showed that the physiological measures strongly correlated with long cycling performances rather than short and medium time trials. The time trial mean power output was moderately high to highly correlated with peak power output and VO2max (r = .61-.87, r = .72-.89, respectively), and was moderately to highly correlated with the lactate threshold Dmax method and second ventilatory threshold (r = .52-.75, r = .55-.82, respectively). CONCLUSIONS: Therefore, trained cyclists should develop maximal aerobic power irrespective of the duration of time trial, as well as enhancements in metabolic thresholds for long duration time trials. PMID- 29334007 TI - Understanding (and Acting On) 20 Years of Research on Violence and LGBTQ + Communities. AB - Questions related to violence, vulnerability, and sexual and gender minorities continuing to occupy a focal place in U.S. public discourse. We reviewed findings from 20 years of research on that topic to make recommendations for policy, practice, and future research. This article synthesizes findings from 102 peer reviewed articles as well as a small number of unpublished studies and grey literature. We found no data to support the idea (widespread in popular discourse) that those in the sexual or gender majority require protection from sexual or gender minority individuals. Instead, this wide body of research indicates that sexual and gender minorities are themselves at elevated risk for physical and sexual assault, harassment, bullying, and hate crime victimization throughout childhood, adolescence, and adulthood. Contradicting the image of hate crimes as perpetrated by strangers or acquaintances, we find that bias-related verbal abuse, physical, and sexual assault by close family members contribute heavily to observed victimization rates. Further, despite the perception that society is becoming more welcoming, victimization disparities appear to be stable or widening since the 1990s. More studies with probabilistic sampling approaches, standardized measures, and larger samples of gender minorities are needed. However, widespread victimization of sexual and gender minorities is clearly an urgent issue, demanding attention from clinicians, program developers, and policy makers. PMID- 29334008 TI - Who Are the Victims and Who Are the Perpetrators in Dating Violence?: Sharing the Role of Victim and Perpetrator. AB - BACKGROUND: Dating violence (DV) is a serious problem with devastating consequences. Often, research on DV has focused on two distinct groups: victims and perpetrators. However, there is growing evidence for a victim-perpetrator overlap model, which posits that those involved in DV are more likely to take on both roles, rather than either role on its own. PURPOSE: We investigated the patterns of involvement in DV among those who identified themselves as victims or perpetrators in previous studies. METHOD: This was a systematic review and meta analysis. A total of 371 variables related to participants' previous and concurrent experiences of DV victimization or perpetration (202 variables related to victimization and 169 related to perpetration) were identified in 25 studies, which were found by systematically searching three databases: PubMed, Web of Science, and SCOPUS. RESULTS: The majority of previous studies categorized study participants as either DV victims or perpetrators; however, those who identified themselves as either DV victims or DV perpetrators were more likely to assume the opposite role as well. Specifically, current DV perpetrators had a strong association with previous or concurrent victimization experiences, and current DV victims were similarly likely to have assumed the roles of both victim and perpetrator in their histories. CONCLUSION: Further efforts should be put into avoiding categorization of those involved in violence; rather, they should be regarded as a single group. Additionally, evidence-based interventions should be developed for this population to help break the cycle of violence. PMID- 29334009 TI - Perspectives in obesity and pregnancy. AB - Obesity is currently recognized as a health epidemic worldwide. Its prevalence has doubled in the last three decades. Obesity is a complex clinical picture associated with physical, physiologic, hormonal, genetic, cultural, socioeconomic and environmental factors. The rate of obesity is also increasing in the pregnant women population. Maternal obesity is associated with less than optimal obstetrical, fetal and neonatal outcomes. It is also associated with significant adverse long-term effects on both obese parturients and the infants born from obese women. A number of guidelines have been published to educate health care workers and the general population in an attempt to develop effective interventions on a large scale to prevent obesity. These guidelines are multiple, confusing and inconsistent. There are no standard recommendations regarding gestational weight gaining goals, nutrients and additional elements necessary for certain obese women who have been treated with bariatric surgical procedures, screening for metabolic diseases such as diabetes, additional preventive health care services indicated for obese women in the pregnancy planning stages, during prenatal care, in the immediate post-partum period and as a long-term approach for health preservation. In 2013, the American Medical Association supported by several US national medical specialty organizations published Resolution 420 (A 13) recognizing obesity as a disease state with multiple pathophysiological aspects requiring a range of interventions to improve its prevention and treatment. The goal of this decision was to encourage a broader spectrum of health care benefits insurance coverage for the prevention and treatment of obesity. There are a number of myths and misconceptions associated with obesity. These perspectives present our views and clinical experience with a partial review of recent bibliography addressing the associations between obese reproductive age women and their risks during pregnancy. PMID- 29334012 TI - Better Together? A Review of Evidence for Multi-Disciplinary Teams Responding to Physical and Sexual Child Abuse. AB - Multi-Disciplinary teams (MDTs) have often been presented as the key to dealing with a number of intractable problems associated with responding to allegations of physical and sexual child abuse. While these approaches have proliferated internationally, researchers have complained of the lack of a specific evidence base identifying the processes and structures supporting multi-disciplinary work and how these contribute to high-level outcomes. This systematic search of the literature aims to synthesize the existing state of knowledge on the effectiveness of MDTs. This review found that overall there is reasonable evidence to support the idea that MDTs are effective in improving criminal justice and mental health responses compared to standard agency practices. The next step toward developing a viable evidence base to inform these types of approaches seems to be to more clearly identify the mechanisms associated with effective MDTs in order to better inform how they are planned and implemented. PMID- 29334010 TI - Esmya(r) and the PEARL studies: A review. AB - Ulipristal acetate was investigated in four phase 3 trials. In PEARL I, ulipristal produced significant normalisation of blood loss within 1 week and decreased fibroid volume. In PEARL II, ulipristal produced faster and more consistent control of bleeding than leuprorelin acetate and had a more favourable side-effect profile. Ulipristal-induced decreases in fibroid volume persisted for 6 months, whereas fibroids regrew after leuprorelin was stopped. PEARL III showed that ulipristal was effective during long-term treatment, with norethisterone further reducing the magnitude of bleeding in the off-treatment period. PEARL IV investigated ulipristal over four cycles, finding little difference between 5 and 10 mg ulipristal, further changes in menstruation and fibroid volume with repeat courses, and no increase in side effects. PMID- 29334011 TI - A qualitative study of cervical cancer and cervical cancer screening awareness among nurses in Ghana. AB - Despite the availability of cervical cancer screening tools, including those that are appropriate for low resource settings, the rates of preventive cervical cancer screening remain extremely low among women in LMICS. Nurse-led education interventions have been proven to be effective at increasing participation in healthcare recommendations. However, there is a need to determine nurses' knowledge of cervical cancer and cervical cancer prevention in order to develop effective health education interventions. Our goal was to assess Ghanaian nurses' knowledge of cervical cancer and cervical cancer prevention. Interviews and small focus groups were conducted with 42 nurses at two hospitals in Ghana. Awareness of cervical cancer was very high among the nurses. However, the majority of the participants held negative perceptions about cervical cancer and lacked knowledge about cervical cancer risk factors and prevention. The results can be used to inform the development of culturally-relevant cervical cancer education interventions targeted towards women and healthcare providers in LMICs. PMID- 29334013 TI - Understanding Teacher Change: A National Survey of U.S. Physical Educators. AB - : Physical education is critical to addressing childhood obesity, yet many school based programs do not meet established quality standards and teachers are called upon to change. Little is known about how change is initiated and its associated internal and external factors. PURPOSE: The purpose of this study was to investigate physical education teacher change that was self-initiated and externally initiated and to examine dispositions toward the change process relative to initiation. METHOD: A random national sample of physical educators representing each SHAPE America - Society of Health and Physical Educators regional district participated in a survey measuring past programming changes, primary initiators of change, and teachers' dispositions toward change. In total, 2,423 teachers (46% response rate) completed electronic, paper, or telephone questionnaires. RESULTS: Teachers most often made minor curriculum changes, and they added/subtracted student assessments (primarily informal assessments) least often. Self-initiated (bottom-up) change was most frequently (83.1% of the time) reported. Externally initiated (top-down) changes were less frequent and were most often associated with professional development. Teachers reported principals' involvement in both top-down and bottom-up change processes was minimal. Teachers who were more disposed to making future changes reported making significantly (p < .01, eta2 = .046-.119) more past changes than those who were less disposed to change. CONCLUSIONS: Physical education teachers primarily self initiated minor programming changes without involvement from administration. Externally initiated change was infrequent and mostly involved professional development. Dispositions toward change were individual and enduring such that teachers who had made more past changes were more likely to also make future changes. PMID- 29334014 TI - Using Applied Theater in Primary, Secondary, and Tertiary Prevention of Intimate Partner Violence: A Systematic Review. AB - There is an immediate need to advance knowledge around the effective prevention of intimate partner violence (IPV), which is responsible for significant negative health and well-being outcomes for women around the world. Creative approaches are being explored internationally-this systematic review provides a timely synthesis of applied theater interventions addressing primary, secondary, and tertiary IPV prevention. Six hundred and ten articles were identified through a comprehensive search of five cross-disciplinary databases. Eleven studies discussed in 15 quantitative and qualitative peer-reviewed articles and one book chapter met the inclusion criteria and were included in the review. Articles were appraised using a standardized quality assessment tool and were analyzed within the context of IPV prevention. Of the reviewed studies, five were classified as primary prevention, four secondary, and two focused on tertiary prevention. Specific strategies used by each of the studies included healthy relationship training, rising awareness and community advocacy, service provider training, bystander training, and working with survivors. While the paucity and quality of current literature make it difficult to determine overall efficacy, this review points to the potential of applied theater as a useful prevention strategy, particularly when interactive, participatory methods are incorporated. Further, applied theater could be an effective tool for working in culturally diverse settings as well as with minority groups. Future applied theater program planning needs to include comprehensive evaluation. More rigorous investigation, involving mixed-method research approaches, is required to fully understand the potential of applied theater as a tool in the context of IPV prevention. PMID- 29334015 TI - Efficacy of hyperbaric oxygen therapy in bacterial biofilm eradication. AB - OBJECTIVE: Chronic wounds typically require several concurrent therapies, such as debridement, pressure offloading, and systemic and/or topical antibiotics. The aim of this study was to examine the efficacy of hyperbaric oxygen therapy (HBOT) towards reducing or eliminating bacterial biofilms in vitro and in vivo. METHOD: Efficacy was determined using in vitro grown biofilms subjected directly to HBOT for 30, 60 and 90 minutes, followed by cell viability determination using propidium monoazide-polymerase chain reaction (PMA-PCR). The efficacy of HBOT in vivo was studied by searching our chronic patient wound database and comparing time-to-healing between patients who did and did not receive HBOT as part of their treatment. RESULTS: In vitro data showed small but significant decreases in cell viability at the 30- and 90-minute time points in the HBOT group. The in vivo data showed reductions in bacterial load for patients who underwent HBOT, and ~1 week shorter treatment durations. Additionally, in patients' chronic wounds there was a considerable emergence of anaerobic bacteria and fungi between intermittent HBOT treatments. CONCLUSION: The data demonstrate that HBOT does possess a certain degree of biofilm killing capability. Moreover, as an adjuvant to standard treatment, more favourable patient outcomes are achieved through a quicker time-to-healing which reduces the chance of complications. Furthermore, the data provided insights into biofilm adaptations to challenges presented by this treatment strategy which should be kept in mind when treating chronic wounds. Further studies will be necessary to evaluate the benefits and mechanisms of HBOT, not only for patients with chronic wounds but other chronic infections caused by bacterial biofilms. PMID- 29334016 TI - Case report to demonstrate the need for selection criteria for optimal adjustable Velcro wrap prescription. AB - Compression, in the form of either a compression bandage or a compression stocking, has been touted as the gold standard for treatment of swelling and venous leg ulcers (VLUs). Adjustable Velcro wraps have been marketed as compression alternative. Although there is a growing body of evidence to support use of these products, there has not been a critical evaluation of the functionality of the devices to best matching product to patient presentation and ability to use the device effectively. Unlike compression garments, which are classified by compression category (class I/II or flat knit/circular), there is not an algorithm to direct health professionals to best match a specific adjustable Velcro wrap to an individual patient presentation. This small case series demonstrates that although each product performed as marketed in vitro, performance in clinical setting varied greatly dependent on patient presentation and functional skill level. PMID- 29334017 TI - Simplifying the simple: pressure-based tissue injuries for dummies. PMID- 29334018 TI - Pyoderma gangrenosum demographics, treatments, and outcomes: an analysis of 2,273 cases. AB - OBJECTIVE: Pyoderma gangrenosum is a rare, neutrophil-mediated, auto-inflammatory dermatosis. This condition has clinical features analogous to infectious processes and must be quickly diagnosed to be properly treated. The purpose of this study was to characterise relevant clinical features associated with pyoderma gangrenosum based on a large inpatient cohort. METHOD: The National Inpatient Sample (US) was used to identify patients with the diagnosis of pyoderma gangrenosum using ICD-9 diagnosis code 686.01, during the years 2008 2010. Data was collected on demographics, associated diagnoses, treatments and outcomes. Data analysis was performed using SAS 9.3 software. RESULTS: A total of 2,273 adult patients were identified with pyoderma gangrenosum. Mean age was 56 years; 66.4% were female; 71.1% were Caucasian. Pyoderma gangrenosum was the primary diagnosis in 22.6% of patients, followed by cellulitis (9.4%), inflammatory bowel disease (IBD) (6.9%), wound/ulcer (5.4%), sepsis (4.7%), and postoperative infection/complication (2.7%). The most common procedures performed were wound debridement (5.3%), skin biopsy (5.1%), esophagogastroduodenoscopy (2%), large bowel biopsy (1.9%), and incision and drainage (1.1%). A total of 74 patients (3.2%) died during hospitalisation. CONCLUSION: Pyoderma gangrenosum is a serious skin condition, frequently associated with systemic disease, and often confused with other skin pathergies. Pyoderma gangrenosum should be considered when evaluating patients with ulcers, wounds, and post-operative complications. A high index of suspicion is necessary for early and accurate diagnosis and prompt treatment. PMID- 29334019 TI - Chemical stabilization of polymers: Implications for dermal exposure to additives. AB - Technical benefits of additives in polymers stand in marked contrast to their associated health risks. Here, a multi-analyte method based on gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) was developed to quantify polymer additives in complex matrices such as low-density polyethylene (LDPE) and isolated human skin layers after dermal exposure ex vivo. That way both technical aspects and dermal exposure were investigated. The effects of polymer additivation on the material were studied using the example of LDPE. To this end, a tailor-made polymer was applied in aging studies that had been furnished with two different mixtures of phenol- and diarylamine-based antioxidants, plasticizers and processing aids. Upon accelerated thermo-oxidative aging of the material, the formation of LDPE degradation products was monitored with attenuated total reflectance-Fourier transformed infrared (ATR-FTIR) spectroscopy. Compared to pure LDPE, a protective effect of added antioxidants could be observed on the integrity of the polymer. Further, thermo-oxidative degradation of the additives and its kinetics were investigated using LDPE or squalane as matrix. The half-lives of additives in both matrices revealed significant differences between the tested additives as well as between LDPE and squalane. For instance, 2-tert-butyl-6-[(3-tert-butyl-2-hydroxy-5 methylphenyl)methyl]-4-methylphenol (Antioxidant 2246) showed a half-life 12 times lower when incorporated in LDPE as compared to squalane. As a model for dermal exposure of consumers, human skin was brought into contact with the tailor made LDPE containing additives ex vivo in static Franz diffusion cells. The skin was then analyzed for additives and decomposition products. This study proved 10 polymer additives of diverse pysicochemical properties and functionalities to migrate out of the polymer and eventually overcome the intact human skin barrier during contact. Moreover, their individual distribution within distinct skin layers was demonstrated. This is exemplified by the penetration of the procarcinogenic antioxidant N-phenylnaphthalen-2-amine (Neozon D) into the viable epidermis and the permeation through the skin of the neurotoxic plasticizer N butylbenzenesulfonamide (NBBS). In addition, the analyses of additive degradation products in the isolated skin layers revealed the presence of 2-tert-butyl-4 methylphenol in all layers after contact to a polymer with substances of origin like Antioxidant 2246. Thus, attention needs to be paid to absorption of polymer additives together with their degradation products when it comes to dermal exposure assessment. PMID- 29334020 TI - Gender-atypical personality or sexual behavior: What is disgusting about male homosexuality? AB - Research consistently finds that homosexuality elicits strong feelings of disgust, but the reasons remain unclear. In the current research, we investigate responses to gay men who violate social norms governing the expression of gender and sexuality. Two hundred forty-three college undergraduates read a vignette about a gay male college student whose personality traits (masculine, feminine, or neutral) and sexual behavior (active vs. passive) varied and reported their affective responses to and cognitive appraisals of the target. The gay target who displayed a feminine personality elicited more disgust and was perceived as lower in gender role conformity than a gay man who displayed a masculine personality. Similarly, the gay target who assumed a passive sex role elicited more disgust and was perceived as lower in gender role conformity than a gay man who assumed an active sex role. The sexual behavior/disgust relationship was mediated by perceived gender role conformity. PMID- 29334021 TI - A Comparison of Training and Competition Demands in Semiprofessional Male Basketball Players. AB - PURPOSE: The purpose of this study was to quantify and compare training and competition demands in basketball. METHODS: Fifteen semiprofessional male basketball players wore microsensors during physical conditioning training (PCT), games-based training (GBT), and competition to measure absolute and relative (.min-1) PlayerLoadTM (PL) and estimated equivalent distance (EED). Internal responses were calculated using absolute and relative session rating of perceived exertion (sRPE) and summated heart rate zones (SHRZ). Integrated measures were calculated as sRPE:PL and SHRZ:PL ratios. RESULTS: PlayerLoad (arbitrary units [AU]) and EED (m) were statistically significantly (p < .05) higher during PCT (632 +/- 139 AU, d = 1.36; 5,964 +/- 1,312 m, d = 1.36; 6.50 +/- 0.81 AU.min-1, d = 2.44; 61.88 +/- 7.22 m.min-1, d = 2.60) and GBT (624 +/- 113 AU, d = 1.54; 5,892 +/- 1,080 m, d = 1.53; 6.10 +/- 0.77 AU.min-1, d = 2.14; 56.76 +/- 6.49 m.min-1, d = 2.22) than they were during competition (449 +/- 118 AU; 3,722 +/- 1474 m; 4.35 +/- 1.09 AU.min-1; 41.01 +/- 10.29 m.min-1). Summated heart rate zones were statistically significantly (p < .05) higher during PCT (314 +/- 86 AU, d = 1.05; 3.22 +/- 0.50 AU.min-1, d = 1.94) and GBT (334 +/- 79 AU, d = 1.38; 3.19 +/- 0.54 AU.min-1, d = 1.83) than they were during competition (225 +/- 77 AU; 2.17 +/- 0.69 AU.min-1). The ratio of sRPE:PL was statistically significantly (p < .05) higher during competition (1.58 +/- 0.85) than during PCT (0.98 +/- 0.22, d = 1.44) and GBT (0.91 +/- 0.24, d = 1.90). CONCLUSION: Training demands exceeded competition demands. PMID- 29334022 TI - Practitioners' Views on IPV and Its Solutions: An Integrative Literature Review. AB - There are ongoing debates in the scientific community and in practice settings about how intimate partner violence (IPV) should be defined and understood and about how various interventions must be carried out. If these debates are to bear fruit, however, we must first gain a comprehensive understanding of each stakeholder's viewpoints on IPV and its solutions. This article seeks to contribute to this goal by summarizing empirical studies investigating how practitioners who work with IPV perpetrators understand the problem and its solutions. Based on an integrative review of the literature, it focuses on how practitioners define IPV and its causes, how they perceive the perpetrators and victims, and on the solutions they put forward in order to work against this social problem. The limitations of our current knowledge are outlined as well as the implications of this review for IPV debates. PMID- 29334023 TI - Gender differences in inappropriate use of urinary catheters among hospitalized older patients. AB - This study investigated the incidence, rationales, and associated factors of inappropriate urinary catheter use among hospitalized older patients by gender. A longitudinal study of 321 patients with urinary catheter was conducted. Demographic factors, present health factors, urinary catheter factors, and indications of catheter use were collected. A total of 53.7% of urinary catheter days were inappropriate. For both men and women, there was no significant difference in the incidence and common rationales of inappropriate use. Women, however, have another associated factor with inappropriate use. More tailored alternatives are needed for women to increase comfort to avoid inappropriate catheter use. PMID- 29334024 TI - State of the Evidence: A Systematic Review of Approaches to Reduce Gender-Based Violence and Support the Empowerment of Adolescent Girls in Humanitarian Settings. AB - Adolescent girls are at an increased risk of sexual violence, abuse, exploitation, and forced or early marriage across humanitarian contexts. In the past few years, prominent initiatives, organizations, and working groups have started to highlight the targeted needs and issues facing adolescent girls and have developed programmatic responses such as safe spaces for adolescent girls to protect and empower girls and reduce their vulnerabilities to violence or exploitation. A systematic review of academic and grey literature was conducted in September 2015 to examine the evidence base for programming that seeks to reduce violence against adolescent girls in humanitarian contexts. The authors used a Boolean search procedure to find and review 5830 records from academic journal databases, resource-hosting websites and relevant organizational websites. The inclusion criteria left us with three adolescent girl program evaluations from humanitarian settings to examine, all of which were pre/post test evaluations that looked at changes in indicators such as social assets, self esteem, decision making, livelihood skills and financial assets, gender norms, and feelings of safety. While these three evaluations showed promising results, overall, this systematic review demonstrates a significant gap in currently available rigorous research. Evidence is urgently needed to guide programming decisions to ensure that the emerging programs provide the level and depth of protection that adolescent girls need in humanitarian settings. PMID- 29334025 TI - Heart Failure: The Increasing Need for a Focus on Self-Care. PMID- 29334026 TI - A guide to breast implants for the non-breast specialist. AB - Breast augmentation is an increasingly popular cosmetic surgery procedure, and breast implants can also be used in reconstructive surgery following mastectomy. Problematic breast implants can present to any discipline of medicine, most frequently to primary care or acute service such as emergency medicine. This guide aims to inform the non-breast specialist in how to assess and treat common problems and when referral to specialist services is necessary. PMID- 29334029 TI - The Relationship Between Childhood Maltreatment and Violence to Others in Individuals With Psychosis: A Systematic Review and Meta-Analysis. AB - BACKGROUND: There is a growing body of literature identifying a relationship between experiences of child abuse and symptoms of psychosis in adults. However, the impact of this relationship on risk of violence has not been systematically explored. AIMS: This meta-analysis aimed to consider the influence of childhood abuse on the risk of violence among individuals with psychosis. METHOD: Five bibliographic databases and two gray literature resources were systematically searched to identify quantitative research which measured risk of violence and experiences of childhood maltreatment in individuals with psychosis. Risk of bias for each study was assessed under predefined criteria. Logged odds ratios ( OR) were synthesized quantitatively in a meta-analysis. RESULTS: A total of 6,298 studies were identified, 11 of which were included in the final analysis ( N = 2,215), all studies were of a cross-sectional or case-control design. Individuals with psychotic illnesses who reported historical child maltreatment were at approximately twice the risk of perpetrating violence than patients who reported no early abuse, OR = 2.46, 95% confidence interval (CI) = [1.91, 3.16]. There was no statistical heterogeneity between main effects (tau = .00; chi2 = 8.87, df = 10, p = .54, I2 = 0%). DISCUSSION: Risk assessments and interventions may benefit from considering the unique contribution of trauma to violence in this population. Future research considering the interaction between childhood experiences and other risk factors for violence in this population, including specific symptoms of psychosis, would inform the current findings. Findings are limited by the lack of longitudinal research in this area, and there was some evidence of publication bias. PMID- 29334028 TI - Differential diagnosis and management of placental polyp and uterine arteriovenous malformation: Case reports and review of the literature. AB - Postpartum uterine bleeding is not uncommon and is caused by a variety of obstetrical and gynecological disorders, such as retained placenta, dysfunctional bleeding, and endometrial polyps. Placental polyps and uterine arteriovenous malformation are disorders often encountered in cases of abnormal uterine bleeding in the late puerperal period. These patients may experience life threatening bleeding and require prompt intervention based on the correct differential diagnosis. The optimal treatments for both diseases differ as follows: intrauterine curettage or transcervical resection are chosen for placental polyps, while total abdominal hysterectomy or uterine artery embolization is preferred for uterine arteriovenous malformation since intrauterine curettage or transcervical resection has the risk of massive bleeding. However, since placental polyp and uterine arteriovenous malformation have similar clinical characteristics, it is important to accurately identify and differentiate between them to ensure optimal therapy. We report here cases that were suggestive of placental polyp or uterine arteriovenous malformation. We discuss the differential diagnoses and treatments for both diseases based on a literature review and propose a novel algorithm for managing such patients. PMID- 29334027 TI - Patient-Specific Quality Assurance Using Monte Carlo Dose Calculation and Elekta Log Files for Prostate Volumetric-Modulated Arc Therapy. AB - Log file-based methods are attracting increasing interest owing to their ability to validate volumetric-modulated arc therapy outputs with high resolution in the leaf and gantry positions and in delivered dose. Cross-validation of these methods for comparison with measurement-based methods using the ionization chamber/ArcCHECK-3DVH software (version 3.2.0) under the same conditions of treatment anatomy and plan enables an efficient evaluation of this method. In this study, with the purpose of cross-validation, we evaluate the accuracy of a log file-based method using Elekta log files and an X-ray voxel Monte Carlo dose calculation technique in the case of leaf misalignment during prostate volumetric modulated arc therapy. In this study, 10 prostate volumetric-modulated arc therapy plans were used. Systematic multileaf collimator leaf positional errors (+/-0.4 and +/-0.8 mm for each single bank) were deliberately introduced into the optimized plans. Then, the delivered 3-dimensional doses to a phantom with a certain patient anatomy were estimated by our system. These doses were compared with the ionization chamber dose and the ArcCHECK-3DVH dose. For the given phantom and patient anatomy, the estimated dose strongly coincided with the ionization chamber/ArcCHECK-3DVH dose ( P < .01). In addition, good agreement between the estimated dose and the ionization chamber/ArcCHECK-3DVH dose was observed. The dose estimation accuracy of our system, which combines Elekta log files and X-ray voxel Monte Carlo dose calculation, was evaluated. PMID- 29334030 TI - Commercial Sexual Exploitation of Youth in the United States: A Qualitative Systematic Review. AB - BACKGROUND: Homeless, runaway, and transgender youth are at high risk for commercial sexual exploitation in the United States. Research examining this phenomenon is growing but requires synthesis to facilitate its use by professionals who serve this population. The purpose of this review was to aggregate the qualitative evidence regarding commercially sexually exploited youth (CSEY) in the United States. METHODS: The search included published and unpublished qualitative studies with current or former CSEY who reside in the United States. RESULTS: There were 19 studies included in the review with a total of 795 participants. Eight themes were identified and grouped into three broader categories: experiences that preceded sex work entry, experiences that facilitated sex work continuation, and experiences that facilitated sex work exit. CONCLUSIONS: Understanding the barriers and facilitators of commercial sexual exploitation can inform the development of interventions that address the needs of CSEY and youth at risk for exploitation. The results of this review highlight the social and economic influences as well as the role of positive and negative reinforcements involved in sex work entry, its continuation, and exit. Needs for services, research, and advocacy are also discussed. PMID- 29334031 TI - A Profile of Gender-Based Violence Research in Europe: Findings From a Focused Mapping Review and Synthesis. AB - This article reports the findings from a new form of review: a focused mapping review and synthesis. The aim was to create a contemporary, snapshot profile of the nature and scope of gender-based violence (GBV) studies conducted in Europe. GBV is one of the most prevalent human rights violations in the world affecting mainly women and girls. The policy context of GBV in Europe has gathered momentum in recent years, but we do not have a clear picture of how this relates to research activity. Thirteen journals were purposively selected on their likelihood to publish GBV research. All articles published in these journals during 2015 and meeting our inclusion criteria were retrieved. Data were extracted according to (1) types of methodologies used, (2) geographical location of research, and (3) patterns of research activity/interest. Thirty-two articles met the inclusion criteria. Many titles and abstracts were not explicit about the gendered nature of the research which made retrieval and analysis difficult. A range of methodologies were reported, with single-country research conducted more than international collaborations. Intimate partner violence and sexual abuse attracted most research interest. No studies explored female genital mutilation/cutting and only one investigated early and forced marriage. The findings have implications regarding GBV research in Europe, and we explore them in relation to relevant European policy. Researchers can help raise the profile of the gendered nature of most violence-related research by being explicit about this in their publications. Increasing opportunities for cross-national research will help address the global nature of GBV. Tackling GBV requires synergy of empirical evidence and policy to drive the agenda. PMID- 29334032 TI - Obscure Dichotomy of Early Childhood Trauma in PTSD Versus Attachment Disorders. AB - There are two competing schools of thoughts involving children who have experienced early childhood trauma. One posture's nosology focuses on the post traumatic stress responses; the other focuses on the deviant behaviors that ensue from pathogenic care in early childhood. This author sought to review the literature from a holistic perspective, embracing both diagnostic positions. Seventy-three articles addressing childhood trauma and the ensuing emotional or behavioral disturbances were evaluated, mostly empirical-including 16 that specified posttraumatic stress disorder (PTSD), 21 that specified attachment disorders, and 37 that included potential overlaps between both trauma derivatives. An additional 138 studies were reviewed but not included herein because those focused on broader issues. Statistical data, financial and emotional impacts, and the effects of disrupted attachments were addressed including both children with secure attachments and those with compromised attachments. The critical effect of both positive and negative parental responses was evaluated, as well as correlations or overlaps in the diagnostic criteria and symptom manifestations of the children and any apparent gaps in the current research. The literature details that the prognosis and course of treatment vary significantly between the two etiologies-apparently at least in part due to possible clinician bias in conceptualizations of the two populations. There are clear overlaps in the diagnostic criteria that strongly suggest comorbidity between the disorders, however, which is especially critical to analyze in the future, since there are solid, empirical, evidence-based treatment protocols for PTSD, but not for attachment disorders resulting from pathogenic caregiver maltreatment. PMID- 29334033 TI - Reappraising and Redirecting Research on the Victim-Offender Overlap. AB - The strong positive association between offending and victimization, or the victim-offender overlap, has received considerable amount of research attention in recent years. Empirical research has made important strides in unpacking the sources of the phenomenon, but important questions remain unanswered. Ambiguity surrounds the utility of certain theoretical explanations for the overlap, the nature of the phenomenon, and the methodological tools used to examine its etiology. Owing to these knowledge gaps, the scientific meaning of the victim offender overlap is unclear. Moreover, a number of potentially important theoretical arguments are rarely subject to empirical testing in this line of research. The purpose of this article is to use a narrative review methodology to provide a critical reappraisal of the theoretical, empirical, and methodological research on the victim-offender overlap and offer directions for ways forward to develop a more comprehensive understanding of the phenomenon. This review includes critical analysis of 78 academic publications, along with a table that summarizes the key findings and conclusions from 18 critical empirical studies that have contributed to our understanding of the victim-offender overlap. We offer recommendations for the continued development of theoretical and methodological tools to better understand this complex phenomenon. PMID- 29334034 TI - Improved exogenous DNA uptake in bovine spermatozoa and gene expression in embryos using membrane destabilizing agents in ICSI-SMGT. AB - Sperm-mediated gene transfer (SMGT) is a simple, fast, and economical biotechnological tool for producing transgenic animals. However, transgene expression with this technique in bovine embryos is still inefficient due to low uptake and binding of exogenous DNA in spermatozoa. The present study evaluated the effects of sperm membrane destabilization on the binding capacity, location and quantity of bound exogenous DNA in cryopreserved bovine spermatozoa using Triton X-100 (TX-100), lysolecithin (LL) and sodium hydroxide (NaOH). Effects of these treatments were also evaluated by intracytoplasmic sperm injection (ICSI) SMGT. Results showed that all treatments bound exogenous DNA to spermatozoa including the control. Spermatozoa treated with different membrane destabilizing agents bound the exogenous DNA throughout the head and tail of spermatozoa, compared with the control, in which binding occurred mainly in the post-acrosomal region and tail. The amount of exogenous DNA bound to spermatozoa was much higher for the different sperm treatments than the control (P < 0.05), most likely due to the damage induced by these treatments to the plasma and acrosomal membranes. Exogenous gene expression in embryos was also improved by these treatments. These results demonstrated that sperm membrane destabilization could be a novel strategy in bovine SMGT protocols for the generation of transgenic embryos by ICSI. PMID- 29334035 TI - Neural correlates of ostracism in transgender persons living according to their gender identity: a potential risk marker for psychopathology? AB - BACKGROUND: Stigmatization in society carries a high risk for development of psychopathology. Transgender persons are at particularly high risk for such stigmatization and social rejection by others. However, the neural correlates of ostracism in this group have not been captured. METHOD: Twenty transgender men (TM, female-to-male) and 19 transgender women (TW, male-to-female) already living in their gender identity and 20 cisgender men (CM) and 20 cisgender women (CW) completed a cyberball task assessing both exclusion and re-inclusion during functional magnetic resonance imaging (fMRI). RESULTS: During psychosocial stress between-group differences were found in the dorsal and ventral anterior cingulate cortex (ACC) and the inferior frontal gyrus (IFG). Patterns were consistent with sex assigned at birth, i.e. CW showed greater activation in dorsal ACC and IFG relative to CM and TW. During re-inclusion, transgender persons showed greater ventral ACC activity relative to CW, possibly indicating persistent feelings of exclusion. Functional connectivity analyses supported these findings but showed a particularly altered functional connectivity between ACC and lateral prefrontal cortex in TM, which may suggest reduced emotional regulation to the ostracism experience in this group. Depressive symptoms or hormonal levels were not associated with these findings. CONCLUSION: The results bear implications for the role of social exclusion in development of mental health problems in socially marginalized groups. PMID- 29334036 TI - Short-term storage of the oocytes affects the ploidy status in the yellowtail tetra Astyanax altiparanae. AB - In fish, many factors can affect reproduction during in vitro fertilization, therefore determination of the factors that affect affecting gamete quality is needed. However, few studies have focused on gamete quality and the ploidy status. This study was conducted to elucidate whether oocyte storage can affect ploidy status, survival, and embryo viability in the characid species Astyanax altiparanae. Oocytes were stored in Dulbecco's phosphate-buffered saline (PBS) at 26 degrees C, then aliquots were fertilized immediately after extrusion (control) and also after 60, 120, 180, and 240 min of storage. Fertilization and hatching rates were measured, and the developmental stages were analyzed at each stage before describing the main abnormalities. Ploidy status was analyzed by flow cytometry and blood smear. In the control group, 100% of the samples were diploid. After treatment for 60 min, 95.56 +/- 4.44% samples were diploid and 4.44 +/- 4.44% were triploid. After 120 min, 94.44 +/- 9.62% of the samples was diploid and 5.56 +/- 5.56% were triploid; 100% of the samples were diploid after 180 min and, after 240 min, there was no survival. In other treatments, the highest percentage of hatching was after 60 min (88.93 +/- 5.15%; P = 0.015), and treatment with 180 min storage resulted in the highest percentage of abnormal larvae (95.76 +/- 12.67%; P = 0.012). These results show that oocyte storage can affect ploidy status and may be an interesting parameter for analysis in studies on chromosome set manipulation and micromanipulation. PMID- 29334037 TI - Improvement in the Prognosis of Cerebral Venous Sinus Thrombosis over a 22-Year Period. AB - BACKGROUND: Cerebral venous thrombosis is a rare cause of stroke, with a number of well-defined risk factors. However, there exist few studies that describe trends in the prognosis of this disease over time. METHODS: A retrospective study was performed on patients diagnosed with cerebral venous thrombosis at the University of Alberta Hospital during two time periods: 1988-1998 (21 patients) and 1999-2009 (40 patients). Signs and symptoms, risk factors, imaging findings, etiologies, treatment modalities, and status at discharge were examined. RESULTS: Headache, nausea and vomiting, focal motor deficit, and seizure were the most common signs and symptoms, and active hormonal contraception was the most commonly identified risk factor between the two cohorts. Hematoma and hyperdense sinuses were the most commonly identified CT findings between groups. Thrombophilia and the use of hormonal contraception were the most frequently identified etiologies between the two cohorts. Treatment was similar, with the majority of patients in both cohorts receiving unfractionated heparin as first line therapy. Patients in the 1999-2009 cohort were significantly less likely to have a severe deficit or be dead at discharge (odds ratio [OR]=0.178; 95% confidence interval [CI 95%]=0.051, 0.625) and were more likely to have a favorable modified Rankin Scale score of 0 or 1 at discharge (OR=7.98; CI 95%=1.79, 35.71). CONCLUSIONS: Our data indicate a reduction in severe residual symptoms at discharge and improved functional status at discharge for patients presenting with cerebral venous thrombosis from 1999 to 2009, as compared with 1988-1998. PMID- 29334038 TI - Robotic-Assisted and Image-Guided MRI-Compatible Stereoelectroencephalography. AB - BACKGROUND: Stereoelectroencephalography has been in regular use at the Montreal Neurological Institute since 1972. The technique has been in constant evolution to incorporate advances in materials, imaging, and robotics technology. MRI compatible electrodes were introduced in 2007 and robotics in 2011. Here we report on the technique, safety, and advantages of our current method of stereoelectroencephalography implantation. METHODS: We retrospectively reviewed all patients who underwent stereoelectroencephalography by the senior author. Technical, clinical, and radiological complications, and postimplantation outcomes were analyzed. Only patients implanted with MRI-compatible electrodes were included to review MRI abnormalities with electrodes in situ. RESULTS: A total of 53 patients were implanted with 550 electrodes (average=10.4 per patient), for an average duration of 14.6 days. There was no mortality, infection, or new neurologic deficit. Two patients had a superficial screw plunge without clinical consequence. Four patients demonstrated asymptomatic MRI abnormalities (7.54% per patient, or 0.72% per electrode). MRI with electrodes in situ was used for neuronavigation in all 29 who underwent resection and yielded a histopathological diagnosis of focal cortical dysplasia in 15 MRI-negative patients. CONCLUSIONS: The technique of stereoelectroencephalography described here was associated with no clinical morbidity although not without technical complications or radiologic (MRI) abnormalities. We should therefore remain vigilant in refining the technique and minimizing the number of electrodes required to answer a well-developed hypothesis regarding the epileptogenic zone. The use of MRI-compatible electrodes allowed neuronavigation using the images with the electrodes in situ, which was useful to tailor the eventual definitive resection and in localizing MRI-negative lesions. PMID- 29334039 TI - Refractory Epilepsy: The Role of Positron Emission Tomography. AB - RATIONALE: Presurgical localization of the epileptogenic focus is critical to successful surgery. Traditionally, localization of the epileptogenic focus depends on seizure semiology, scalp video-electroencephalography (vEEG), magnetic resonance imaging (MRI), neuropsychological assessment, and, when needed, intracranial EEG (iEEG). We aimed to explore the role of positron emission tomography (PET) in the presurgical evaluation of patients with refractory epilepsy. METHODS: A retrospective review was conducted on patients from London Health Sciences Centre (London, Ontario) with refractory epilepsy who underwent PET from September of 2011 to April of 2016. The accuracy of epileptogenic focus localization was compared between different investigative modalities (MRI, vEEG, iEEG, PET), and the outcomes were documented, including seizure freedom after surgical resection, improvement of seizure frequency, guidance for further investigations, and exclusion of patients from further evaluation. Patients who underwent surgery were followed up at 3 months and onward. RESULTS: We identified 62 patients with refractory epilepsy who underwent PET. The mean age was 34 years (range=20-68). A total of 36 had concordant PET and vEEG findings: 6 had surgical resection and either became seizure-free (29.4%) or had improvement in seizure frequency (5.9%) at 3 months; 11 had surgical resection and either became seizure free (29.4%) or had improvement in seizure frequency (35.3%) at 3 months, but required iEEG for final verification. CONCLUSIONS: PET has an important role in presurgical evaluation of patients with refractory epilepsy. It may allow resection of the epileptogenic focus without the need for iEEG, guiding intracranial electrode placement for further localization of the epileptogenic focus, or exclusion of patients from further evaluation. PMID- 29334040 TI - Botulinum Toxin Type A for Pain in Advanced Parkinson's Disease. AB - Background and Objective Pain is a frequent symptom in Parkinson's disease (PD), and the therapeutic alternatives are scarce. The goal of this trial was to measure the effects of botulinum toxin type A (BTXA) in the treatment of limb pain in advanced PD. Methods A randomized double-blind crossover versus placebo study of BTXA for limb pain in advanced Parkinson's disease was conducted. Subjects received individualized BTXA/placebo dosing per pain distribution in limbs. The primary outcome was a measure of change in global pain on a numeric rating scale (NRS) at 4 and 12 weeks postinjection and on a visual analogue scale 12 weeks after treatment. Secondary outcomes included the percentage of responders, physician-rated clinical global impressions, MDS-UPDRS and PDQ-39 scores, and adverse events. Results A total of 12 subjects completed the trial. Treatment with BTXA (average dose=241.66 U) produced a significant reduction in NRS score 4 weeks after the injections (-1.75 points, range from -3 to 7, p=0.033). However, there was no significant difference compared to placebo (p=0.70). Participants with dystonic pain showed a greater reduction in NRS score after 4 weeks when treated with BTXA (2.66 points vs. 0.75 for placebo). There were no significant differences for any of the secondary outcomes or significant adverse events. Conclusions Targeted BTXA injections were safe in patients with limb pain and advanced PD; however, the present study failed to show a significant effect when compared to placebo. Further studies may be focused on evaluating the effect of BTXA particularly in dystonic pain. PMID- 29334041 TI - Autoantibodies to Low-Density Lipoprotein Receptor-Related Protein 4 in Double Seronegative Myasthenia Gravis: A Systematic Review. AB - BACKGROUND: Myasthenia gravis (MG) is an autoimmune disorder of the neuromuscular junction in which a clinical diagnosis may be confirmed with serological testing. The most common autoantibodies used to support a diagnosis of MG are anti acetylcholine receptor antibodies and anti-muscle-specific tyrosine kinase antibodies. In cases in which both of these autoantibodies are negative (termed double-seronegative [dSNMG]), other autoantibodies such as low-density lipoprotein receptor-related protein 4 (LRP4) may be used to aid in diagnosis. METHODS: We have undertaken a systematic literature review to identify studies that have assessed the frequency of anti-LRP4 antibodies in dSNMG patients and the characteristics of anti-LRP4+ dSNMG patients (epidemiology, clinical features, electromyographic findings, or management). PubMed, EMBASE, Medline, and Scopus were searched on January 14, 2017, using the medical subject headings "myasthenia gravis" and "low-density lipoprotein receptor-related protein 4" or "LRP4." RESULTS: The initial search identified 367 articles. Fourteen publications met the inclusion criteria. There were ten cross-sectional research studies, three were case series, and one was a case report. The majority of studies were limited by small sample sizes of LRP4+ dSNMG. There has been a wide range of frequencies of anti-LRP4 antibodies detected in different MG patient populations, some involving different laboratory techniques. CONCLUSIONS: LRP4+ dSNMG is more likely than LRP4- dSNMG to have a younger onset of disease and occur in females. LRP4+ dSNMG most often is mild in severity and often involves isolated ocular weakness. It typically responds well to pyridostigmine or prednisone. PMID- 29334042 TI - Orbital Myositis: An Underrecognized Clinical Syndrome with a Need of Management Guidelines. PMID- 29334043 TI - A Tribute to James Parkinson. AB - Exactly 200 years ago, the London surgeon-apothecary James Parkinson (1755-1824) published a 66-page-long booklet entitled An Essay on the Shaking Palsy, which contains the first clear clinical description of the shaking palsy or paralysis agitans, which we now refer to as Parkinson's disease. However, the value of this essay was not fully recognized during Parkinson's lifetime, which spanned the American Revolution, the French Revolution, and the Napoleonic Wars. James Parkinson was one of the most singular figures of his time and place. He was successively or concomitantly a virulent political activist, a popular medical writer, a scholarly medical contributor, a highly appreciated parish doctor, a prominent amateur chemist, a devoted madhouse doctor, and a renowned paleontologist. It is that branch of geology that brought Parkinson fame during his lifetime. He was an insatiable collector of fossils, minerals, and shells that came to form the core of the museum that he set out at his home in Shoreditch, England. These specimens are beautifully illustrated in his Organic Remains of a Former World (1804-1811), a three-volume treatise that rapidly became a standard paleontology textbook. Parkinson was a founding member of the Geological Society of London, and in recognition of his contribution to the nascent field of paleontology his name was given to many fossils, particularly ammonites (e.g. Nautilus parkinsoni). Hence, we owe much to Mr. Parkinson, the Paleontologist, as he used to be referred to after his death, for such a vast and multifaceted contribution to natural science and medicine. PMID- 29334044 TI - Gene-environment interplay in the etiology of psychosis. AB - Schizophrenia and other types of psychosis incur suffering, high health care costs and loss of human potential, due to the combination of early onset and poor response to treatment. Our ability to prevent or cure psychosis depends on knowledge of causal mechanisms. Molecular genetic studies show that thousands of common and rare variants contribute to the genetic risk for psychosis. Epidemiological studies have identified many environmental factors associated with increased risk of psychosis. However, no single genetic or environmental factor is sufficient to cause psychosis on its own. The risk of developing psychosis increases with the accumulation of many genetic risk variants and exposures to multiple adverse environmental factors. Additionally, the impact of environmental exposures likely depends on genetic factors, through gene environment interactions. Only a few specific gene-environment combinations that lead to increased risk of psychosis have been identified to date. An example of replicable gene-environment interaction is a common polymorphism in the AKT1 gene that makes its carriers sensitive to developing psychosis with regular cannabis use. A synthesis of results from twin studies, molecular genetics, and epidemiological research outlines the many genetic and environmental factors contributing to psychosis. The interplay between these factors needs to be considered to draw a complete picture of etiology. To reach a more complete explanation of psychosis that can inform preventive strategies, future research should focus on longitudinal assessments of multiple environmental exposures within large, genotyped cohorts beginning early in life. PMID- 29334045 TI - Development of a patient experience questionnaire to improve lifestyle services in primary care. AB - : Aim We developed a self-report tool to assess patients' experiences with lifestyle services in team-based primary care and pilot tested the questionnaire as part of a lifestyle intervention study to reverse metabolic syndrome. BACKGROUND: Older client satisfaction questionnaires have been generally inadequate for quality improvement purposes, as they have been focused mainly on interpersonal skills of providers and/or in the context of one disease. New approaches to assessing the patient experience of lifestyle programs in primary care are needed and could inform quality improvement efforts over time. METHODS: The first phase in developing the questionnaire involved a group-administered questionnaire distributed to 38 healthcare providers in five groups to prioritize variables to include in the survey. Concepts were taken from a previous review of available questionnaires assessing primary care services. The draft questionnaire was reviewed by 11 participants from a lifestyle program using think-aloud cognitive interviewing techniques. The modified self-administered questionnaire (paper and online versions) was then pilot tested with 164 recipients of a nutrition and physical activity intervention program. Findings Providers ranked the top variables to include in the questionnaire as: 'trust,' 'general communication,' 'first-contact accessibility,' 'whole-person care,' and 'respectfulness.' After cognitive interviewing and revisions, 21 multiple choice and two open-ended questions were used for pilot testing. Pilot testing identified additional minor wording changes that were needed for clarity, a decreased number of questions for redundant concepts, and decreased options for ceiling effects, resulting in 20 multiple choice and one open-ended question. CONCLUSIONS: The modified self-administered patient experience questionnaire to assess lifestyle services in primary care has undergone rigorous development. Further validation is needed. The assessment of patient experience of lifestyle programs can be used to supplement other data to assess the overall effectiveness of such programs. PMID- 29334046 TI - Antimicrobial Activities of Novel Bis-Piperidinium Compounds. AB - The antimicrobial activity of two new series of bis-piperidinium compounds with alkyl chains of different lengths against bacterial (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus and Bacillus subtilis) and fungal strains (Aspergillus flavus, Aspergillus niger, Rhodolorula rubera, Lipomyces lopofera and Candida albicans), are described. Antimicrobial activities of the synthesized compounds were compared to that of dodecyltrimethylammonium chloride. Bis-piperidinium salts possessing 12-16 carbon side chains showed better antimicrobial properties as compared to the standard dodecyltrimethylammonium chloride. PMID- 29334047 TI - Partial Characterization of Bacteriocin Produced by Halotolerant Pediococcus acidilactici Strain QC38 Isolated from Traditional Cotija Cheese. AB - During a screening of lactic acid bacteria producing bacteriocin from Cotija cheese, the strain QC38 was isolated. Based on the 16S rRNA gene nucleotide sequencing (516 pb accession no KJ210322) and phylogenetic analysis, the isolate was identified as Pediococcus acidilactici. Neutralized cell-free supernatant was tested for antimicrobial activity against 17 Gram-negative and Gram-positive pathogens. Growth inhibition was achieved against Listeria monocytogenes (supplier or indication or source), Staphylococcus aureus, Vibrio vulnificus, Vibrio cholerae O1 Ogawa, Vibrio cholerae NO 01 and Salmonella enterica subsp. Enterica serovar Typhimurium. Bacteriocin-like substance, after heating at 121 degrees C for 15 min it remained stable and its antimicrobial activity was observed at pH ranging from 1.0 to 10.0 but inactivated by alpha-chymotrypsin and proteinase K. Strain QC38 was able to grow in 1-9% NaCl concentration. The plate overlay assay showed an approximate size of bacteriocin-like substance between 3.4 and 6.5 kDa. P. acidilactici QC38 harboured a plasmid that contains a gene for a pediocin (PA-1). PMID- 29334048 TI - Use of the Real Time xCelligence System for Purposes of Medical Microbiology. AB - Roche's xCelligence impedance-measuring instrument is one of a few commercially available systems of such type. According to the best knowledge of authors, instrument was tested so far only for eukaryotic cell research. The aim of this work was to estimate xCELLigence suitability for the microbiological tests, including (i) measurement of morphological changes in eukaryotic cells as a result of bacterial toxin activity, (ii) measurement of bacterial biofilm formation and (iii) impact of antiseptics on the biofilm structure. To test the infuence of bacterial LT enterotoxin on eukaryotic cell lines, Chinese Hamster Ovary (CHO) cell line and reference strain Escherichia coli ATTC 35401 were used. To investigate Roche's instrument ability to measure biofilm formation and impact of antiseptics on its development, Staphylococcus aureus ATTC6538 reference strain was used. The data generated during the experiments indicate excellent ability of xCelligence instrument to detect cytopathic effect caused by bacterial LT endotoxin and to detect staphylococcal biofilm formation. However, interpretation of the results obtained during real-time measurement of antiseptic's bactericidal activity against staphylococcal biofilm, caused many difficulties. xCelligence instrument can be used for real-time monitoring of morphological changes in CHO cells treated with bacterial LT enterotoxin and for real-time measurement of staphylococcal biofilm formation in vitro. Further investigation is necessary to confirm suitability of system to analyze antiseptic's antimicrobial activity against biofilm in vitro. PMID- 29334049 TI - Phylogenetic Analysis Based on 16S rRNA Gene of a Thermophilic Protease-Secreting Bacillus gelatini-TPNK-3 Isolate from Kiteezi Landfill, Uganda. AB - A thermophilic protease-secreting bacterial isolate, TPNK-3, from Kiteezi landfill, is an aerobic Gram-positive spore-forming bacterium with rod-shaped cells (3.28 MUm long and 0.45 MUm wide). Optimal growth was observed at 55 degrees C and pH of 7.0, and the isolate tolerates up to 5% (w/v) NaCl, exhibits extracellular amylolytic, cellulolytic and caseinolytic activities, utilizes a range of carbon and nitrogen sources and has a GC content of 45 mol%. The 16S rRNA gene sequence analysis showed that the studied bacterium belongs to the genus Bacillus, and closest to Bacillus gelatini (>99.9%). Consequently, isolate TPNK3 is tentatively described as Bacillus gelatini strain TPNK3. PMID- 29334050 TI - Enzymatic Activity of Prototheca zopfii Strains Isolated from Cows with Mastitis. AB - Bovine mastitis caused by Prototheca spp. can be a disease of high significance because of economic losses and the potential risk to public health. The aim of our study was to evaluate enzymatic activity of Prototheca zopfii. For this study, we used 15 P. zopfii strains previously isolated from cows with clinical and subclinical mastitis in Poland. We determined enzymatic profile of Prototheca species using the API ZYM system. Of the enzymatic activities detected during the study, acid phosphatase, leucine arylamidase, naphthol-as-bi-phosphohydrolase, esterase, lipase esterase, valine arylamidase, alkaline phosphatase, and lipase C14 were found in high percentage of strains. PMID- 29334051 TI - Characterization of a Highly Enriched Microbial Consortium Reductively Dechlorinating 2,3-Dichlorophenol and 2,4,6-Trichlorophenol and the Corresponding cprA Genes from River Sediment. AB - Anaerobic reductive dechlorination of 2,3-dichlorophenol (2,3DCP) and 2,4,6 trichlorophenol (2,4,6TCP) was investigated in microcosms from River Nile sediment. A stable sediment-free anaerobic microbial consortium reductively dechlorinating 2,3DCP and 2,4,6TCP was established. Defined sediment-free cultures showing stable dechlorination were restricted to ortho chlorine when enriched with hydrogen as the electron donor, acetate as the carbon source, and either 2,3-DCP or 2,4,6-TCP as electron acceptors. When acetate, formate, or pyruvate were used as electron donors, dechlorination activity was lost. Only lactate can replace dihydrogen as an electron donor. However, the dechlorination potential was decreased after successive transfers. To reveal chlororespiring species, the microbial community structure of chlorophenol-reductive dechlorinating enrichment cultures was analyzed by PCR-denaturing gradient gel electrophoresis (DGGE) of 16S rRNA gene fragments. Eight dominant bacteria were detected in the dechlorinating microcosms including members of the genera Citrobacter, Geobacter, Pseudomonas, Desulfitobacterium, Desulfovibrio and Clostridium. Highly enriched dechlorinating cultures were dominated by four bacterial species belonging to the genera Pseudomonas, Desulfitobacterium, and Clostridium. Desulfitobacterium represented the major fraction in DGGE profiles indicating its importance in dechlorination activity, which was further confirmed by its absence resulting in complete loss of dechlorination. Reductive dechlorination was confirmed by the stoichiometric dechlorination of 2,3DCP and 2,4,6TCP to metabolites with less chloride groups and by the detection of chlorophenol RD cprA gene fragments in dechlorinating cultures. PCR amplified cprA gene fragments were cloned and sequenced and found to cluster with the cprA/pceA type genes of Dehalobacter restrictus. PMID- 29334052 TI - The Effect of a Small Conotoxin-Like ctx Gene from Autographa californica Nuclear Polyhedrosis Virus (AcMNPV) on Insect Hemolymph Melanization. AB - The conotoxin-like (ctx) gene encodes a small cysteine-rich polypeptide in various baculoviruses. Previous research has demonstrated that the product of the ctx gene could be purified from insect cells infected by Autographa californica nuclear polyhedrosis virus (AcMNPV), but its function was unknown. In this paper, we compared the conserved cysteine motif structure (CX3GX2CX5CCX3CX6C) of the ctx gene in baculoviruses and generated recombinant Bombyx mori nuclear polyhedrosis virus (BmNPV) with the BmNPV bacmid system. The recombinant BmNPV contained the ctx gene from AcMNPV or a fusion gene of ctx with eGFP, respectively. Fluorescence in CTX-eGFP-positive cells was mainly observed on the cell membrane. To gain insight into CTX function, two methods were used to elucidate the affect CTX had on hemolymph melanization in vivo and in vitro in insect larvae and pupae. The results indicated that CTX abrogates hemolymph melanization; however, the mechanisms require further evaluation. PMID- 29334053 TI - Complex Biochemical Analysis of Fruiting Bodies from Newly Isolated Polish Flammulina velutipes Strains. AB - The present study examined Polish strains of Flamulina velutipes as a potential source of nutraceuticals and found that their nutritional value is dependent on the fruiting bodies gathering time. To prove the above hypothesis protein, carbohydrate and phenolic substances concentration were determined. Moreover, catalase, superoxide dismutase, cellobiose dehydrogenase activities were assayed. In order to prove the healing properties of Enoki fruiting bodies the obtained extracts were tested for antioxidant and bacteriostatic abilities. We have proved that Polish F. velutipes fruiting bodies may be a rich source of antioxidants and that they are capable of inhibiting Staphylococcus aureus growth. PMID- 29334054 TI - Candida albicans Denture Biofilm and its Clinical Significance. AB - Fungi belonging to Candida genus, especially C. albicans play an important role in microflora of oral cavity. Microbial colonisation process taking place within oral cavity is inseparably related to formation of multispecies biofilm, i.e. dental and denture plaque. A mature fungal biofilm is a heterogeneous three dimensional dense conglomeration of mixture of different morphological forms: blastospores, germ tubes, pseudohyphae and hyphae surrounded by the extracellular polymeric matrix. Composition and specific properties of substratum, saliva and yeasts as well as multiple intricate interactions between all of them influence the ability of Candida spp. isolates to adhere and colonise both natural and artificial surfaces, followed by biofilm formation. Obviously, specific complex host-pathogen interactions also should not be neglected. A lot of additional factors like poor oral and denture hygiene, low pH under prosthesis, sufficient concentration of sugar and iron or antibody titres influence Candida adhesion and colonisation of acrylic resin base. C. albicans is capable of inducing a variety of superficial diseases of the oral mucosa. The most common clinical form of oral candidal infection related to biofilm formation affecting a great deal of denture wearers is denture-associated stomatitis, also known as chronic atrophic candidiasis or erythemateous candidasis. Development of C. albicans biofilm on a denture surface constitutes a difficult and hard to resolve problem which may concern every single prosthesis-wearer. Thus, careful oral and denture hygiene is highly recommended for the population of artificial teeth wearers. PMID- 29334055 TI - Endophytic Detection in Selected European Herbal Plants. AB - A total of 181 cultivable endophytic bacterial isolates were collected from stems of 13 species of herbs inhabiting Europe (Poland): Chelidonium majus L., Elymus repens L., Erigeron annuus L., Euphrasia rostkoviana Hayne, Foeniculum vulgare L., Geranium pratense L., Humulus lupulus L., Matricaria chamomilla L., Mentha arvensis L., Papaver rhoeas L., Rosmarinus officinalis L., Solidago gigantea L. and Vinca minor L. The isolates were screened for their antifungal activity and fifty three were found to inhibit fungal growth. Of these, five had strong antifungal properties. These selected isolates were identified as: Pseudomonas azotoformans, P. cedrina, Bacillus subtilis group and Erwinia persicina. PMID- 29334056 TI - Concept for Development of Expert Computer Program for Identification of Filamentous Fungi. AB - An expert program has been developed for users working in industrial laboratories who are not experts in the identification of filamentous fungi. The database of morphological growth features currently contains 12 species from the genera Aspergillus and Penicillium grown under standard conditions. The identification algorithm implemented in the database takes into account the reliability of users, which can vary over a wide range depending on the identification feature. The reliability of users was estimated on the basis of a questionnaire survey conducted among 27 non-experts, as the likelihood of a response consistent with the assessment of experts. The program works through comparative analysis of features of the fungus being identified with the expert-developed database and selection of the most likely species among the species represented by reference strains. The expert program reduces subjective mistakes and may be extended to include further fungal species and genera; it can also be supplemented with chemotaxonomic, genetic and other data. PMID- 29334057 TI - Characterization of Rhizobial Bacteria Nodulating Astragalus corrugatus and Hippocrepis areolata in Tunisian Arid Soils. AB - Fifty seven bacterial isolates from root nodules of two spontaneous legumes (Astragalus corrugatus and Hippocrepis areolata) growing in the arid areas of Tunisia were characterized by phenotypic features, 16S rDNA PCR-RFLP and 16S rRNA gene sequencing. Phenotypically, our results indicate that A. corrugatus and H. areolata isolates showed heterogenic responses to the different phenotypic features. All isolates were acid producers, fast growers and all of them used different compounds as sole carbon and nitrogen source. The majority of isolate grew at pHs between 6 and 9, at temperatures up to 40 degrees C and tolerated 3% NaCl concentrations. Phylogenetically, the new isolates were affiliated to four genera Sinorhizobium, Rhizobium, Mesorhizobium and Agrobacterium. About 73% of the isolates were species within the genera Sinorhizobium and Rhizobium. The isolates which failed to nodulate their host plants of origin were associated to Agrobacterium genus (three isolates). PMID- 29334058 TI - Prevalence of Biofilm Formation and Wide Distribution of Virulence Associated Genes among Vibrio spp. Strains Isolated from the Monastir Lagoon, Tunisia. AB - In the current study, 65 Vibrio spp. were isolated from the Monastir lagoon water, were characterized phenotypically and genotypically. In addition, we looked for the presence of three Vibrio parahaemolyticus virulence genes (tlh, trh and tdh) and ten Vibrio cholerae virulence genes (ctxA, vpi, zot, ace, toxR, toxT, tosS, toxRS, tcpA and cpP). We also investigated the antibiotic susceptibilities and the adherence ability of the identified strains to abiotic material and to biotic surfaces. The cytotoxicity activity against HeLa and Vero cell lines were also carried out for all tested strains. All Vibrio isolates were identified to the species level and produced several hydrolytic exoenzymes. The results also revealed that all strains were expressing high rates of resistance to tested antibiotics. The minimum inhibitory concentration (MIC) values showed that tetracycline and chloramphenicol were the most effective antibiotics against the tested bacteria. Vibrio alginolyticus and V. cholerae species were the most adhesive strains to both biotic and abiotic surfaces. Besides, V. alginolyticus isolates has the high levels of recombination of genes encoding V. cholerae and V. parahaemolyticus virulence factors. In vitro cytotoxic activities of several Vibrio extracellular product were also observed among HeLa and Vero cells. PMID- 29334059 TI - Molecular Characterization of Shiga Toxin-Producing Escherichia coli Strains Isolated in Poland. AB - Shiga toxin-producing Escherichia coli (STEC) strains also called verotoxin producing E. coli (VTEC) represent one of the most important groups of food-borne pathogens that can cause several human diseases such as hemorrhagic colitis (HC) and hemolytic - uremic syndrome (HUS) worldwide. The ability of STEC strains to cause disease is associated with the presence of wide range of identified and putative virulence factors including those encoding Shiga toxin. In this study, we examined the distribution of various virulence determinants among STEC strains isolated in Poland from different sources. A total of 71 Shiga toxin-producing E. coli strains isolated from human, cattle and food over the years 1996-2010 were characterized by microarray and PCR detection of virulence genes. As stx1a subtype was present in all of the tested Shiga toxin 1 producing E. coli strains, a greater diversity of subtypes was found in the gene stx2, which occurred in five subtypes: stx2a, stx2b, stx2c, stx2d, stx2g. Among STEC O157 strains we observed conserved core set of 14 virulence factors, stable in bacteria genome at long intervals of time. There was one cattle STEC isolate which possessed verotoxin gene as well as sta1 gene encoded heat-stable enterotoxin STIa characteristic for enterotoxigenic E. coli. To the best of our knowledge, this is the first comprehensive analysis of virulence gene profiles identified in STEC strains isolated from human, cattle and food in Poland. The results obtained using microarrays technology confirmed high effectiveness of this method in determining STEC virulotypes which provides data suitable for molecular risk assessment of the potential virulence of this bacteria. virulence factors including those encoding Shiga toxin. In this study, we examined the distribution of various virulence determinants among STEC strains isolated in Poland from different sources. A total of 71 Shiga toxin-producing E. coli strains isolated from human, cattle and food over the years 1996-2010 were characterized by microarray and PCR detection of virulence genes. As stx1a subtype was present in all of the tested Shiga toxin 1 producing E. coli strains, a greater diversity of subtypes was found in the gene stx2, which occurred in five subtypes: stx2a, stx2b, stx2c, stx2d, stx2g. Among STEC O157 strains we observed conserved core set of 14 virulence factors, stable in bacteria genome at long intervals of time. There was one cattle STEC isolate which possessed verotoxin gene as well as sta1 gene encoded heat-stable enterotoxin STIa characteristic for enterotoxigenic E. coli. To the best of our knowledge, this is the first comprehensive analysis of virulence gene profiles identified in STEC strains isolated from human, cattle and food in Poland. The results obtained using microarrays technology confirmed high effectiveness of this method in determining STEC virulotypes which provides data suitable for molecular risk assessment of the potential virulence of this bacteria. PMID- 29334060 TI - Nonspecific Bacterial Flora Isolated from the Body Surface and Inside Ixodes ricinus Ticks. AB - Ixodes ricinus and other representatives of the order Ixodida are vectors of typical pathogens: Borrelia burgdorferi sensu lato, Anaplasma phagocytophilium, Babesia spp., a tick-borne encephalitis virus, and other microorganisms which are important from a medical and veterinary point of view. The presented study focuses on the verification of nonspecific bacterial flora of I. ricinus. We analyzed ticks collected in a forest region in Silesia, an industrial district in Poland. Methods of classical microbiology and biochemical assays (API 20 NE test, API Staph test and MICRONAUT System) were used for isolation and identification of microorganisms living on the body surface of I. ricinus and inside ticks. The results show the presence of various bacteria on the surface and inside ticks' bodies. During the study, we isolated Acinetobacter lwoffi, Pseudomonas fluorescens, Aeromonas hydrophila, Achromobacter denitrificans, Alcaligenes faecalis, Stenotrophomonas maltophilia, Pseudomonas oryzihabitans, Micrococcus spp., Kocuria varians, Staphylococcus lentus, Kocuria kristinae, Streptococcus pneumoniae, Rhizobium radiobacter, Staphylococcus xylosus. Majority of the isolated species are non-pathogenic environmental microorganisms, but some of the isolated bacterial strains could cause severe infections. PMID- 29334061 TI - The Effect of Local Platelet Rich Plasma Therapy on the Composition of Bacterial Flora in Chronic Venous Leg Ulcer. AB - Microbial colonisation of chronic venous ulcers and synergism between bacterial species slow down the healing process. The study aimed at performing qualitative analysis of microbial flora in venous leg ulcers treated with platelet rich plasma (PRP). Twenty two women and twelve men aged 47-90 years were treated with PRP at our department between 2012 and 2015. Ulcer cultures collected before and after PRP therapy yielded 83 and 110 microbial isolates, respectively, of Gram positive, Gram negative bacteria and candida. Pseudomonas aueruginosa and Staphylococcus aureus were the most common pre- and post-treatment isolates. PRP therapy and increased the variety of microbial flora. PMID- 29334062 TI - The Role of Staphylococcus aureus in Secondary Infections in Patients with Atopic Dermatitis (AD). AB - Staphylococcus aureus colonizes the mucous membrane of the nasal vestibule of a significant number of healthy people. These microorganisms are opportunistic pathogens, that in favorable conditions, may cause infections of various course, location or manifestation. Secondary infections emerge in cases when other risk factors contribute to such a change. One of the diseases during which S. aureus changes its saprophytic character to a pathogenic one is atopic dermatitis (AD), an allergic skin condition of a chronic and recurrent nature. Patients with AD are highly predisposed to secondary staphylococcal infections due to active S. aureus colonization of the stratum corneum, damage of the skin barrier or a defective immune response. Microorganisms present in skin lesions destroy the tissue by secreting enzymes and toxins, and additionally stimulate secondary allergic reactions. The toxins secreted by strains of S. aureus also act as superantigens and penetrate the skin barrier contributing to a chronic inflammation of the atopic skin lesions. The S. aureus species also releases proinflammatory proteins, including enzymes that cause tissue damage. When initiating treatment it is particularly important to properly assess that the onset of the secondary bacterial infection is caused by S. aureus and thus justifying the inclusion of antibiotic therapy. Depending on the severity and extent of the staphylococcal infection, topical antibiotics are used, usually mupirocin or fusidic acid, or general antibiotic treatment is introduced. Another therapeutic strategy without antibiotics has given a positive effect in patients. PMID- 29334063 TI - Penicillin Resistance in Enterococcus faecalis: Molecular Determinants and Epidemiology. AB - Enterococcus faecalis plays a significant role in hospital-acquired infections (HAIs), and combination of penicillin with aminoglycoside is important in therapy of invasive HAIs. Penicillin resistance in this organism is due to modification of the drug target, penicillin-binding protein (PBP5), its overproduction and expression of beta-lactamase. Although rare, this phenotype is often associated with multi-resistant high-risk enterococcal clonal complexes (HiRECCs), such as CC2 and CC9 which may promote its spread in the near future. PMID- 29334064 TI - Distribution and Identification of Endophytic Streptomyces Species from Schima wallichii as Potential Biocontrol Agents against Fungal Plant Pathogens. AB - The prospective of endophytic microorganisms allied with medicinal plants is disproportionally large compared to those in other biomes. The use of antagonistic microorganisms to control devastating fungal pathogens is an attractive and eco-friendly substitute for chemical pesticides. Many species of actinomycetes, especially the genus Streptomyces, are well known as biocontrol agents. We investigated the culturable community composition and biological control ability of endophytic Streptomyces sp. associated with an ethanobotanical plant Schima wallichi. A total of 22 actinobacterial strains were isolated from different organs of selected medicinal plants and screened for their biocontrol ability against seven fungal phytopathogens. Seven isolates showed significant inhibition activity against most of the selected pathogens. Their identification based on 16S rRNA gene sequence analysis, strongly indicated that all strains belonged to the genus Streptomyces. An endophytic strain BPSAC70 isolated from root tissues showed highest percentage of inhibition (98.3 %) against Fusarium culmorum with significant activity against other tested fungal pathogens. Phylogenetic analysis based on 16S rRNA gene sequences revealed that all seven strains shared 100 % similarity with the genus Streptomyces. In addition, the isolates were subjected to the amplification of antimicrobial genes encoding polyketide synthase type I (PKS-I) and nonribosomal peptide synthetase (NRPS) and found to be present in most of the potent strains. Our results identified some potential endophytic Streptomyces species having antagonistic activity against multiple fungal phytopathogens that could be used as an effective biocontrol agent against pathogenic fungi. PMID- 29334065 TI - Pexophagy in Penicillin G Secretion by Penicillium chrysogenum PQ-96. AB - Penicillin G oversecretion by Penicillium chrysogenum PQ-96 is associated with a strictly adjusted cellular organization of the mature and senescent mycelial cells. Abundant vacuolar phagy and extended cellular vacuolization combined with vacuolar budding resulting in the formation of vacuolar vesicles that fuse with the cell membrane are the most important characteristic features of those cells. We suggest as follows: if the peroxisomes are integrated into vacuoles, the penicillin G formed in peroxisomes might be transferred to vacuoles and later secreted out of the cells by an exocytosis process. The peroxisomal cells of the mycelium are privileged in penicillin G secretion. PMID- 29334066 TI - Comparative Study of Microcalorimetric Behavior of Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae. AB - To analyze the microcalorimetric behaviour of Escherichia coli, Proteus mirabilis and Klebsiella pneumoniae, and to test the prospective use of microcalorimetry in the early diagnosis of infections by enterobacteria. For our experiments we used cultures of E. coli, P. mirabilis and K. pneumoniae. For the experimental setup, we used a Calvet microcalorimeter with the constant temperature of 309 K inside. Using the measured difference of heat power generated by the cells over time, we obtained growth graphs of the three bacterial species grown at different densities. The generated curves have characteristic plot that repeats for each bacterial species at all the concentrations studied. We observed an inversely proportional relationship between inoculum size and the time until signal detection; the smaller inoculum, the longer time for the signal detection. In all conducted experiments, even with low number of bacteria (10 CFU/ml) as inoculum, we could identify bacterial growth in the sample within 8 hours. Microcalorimetry could be an efficient technique used for the early detection and identification of enterobacteria in a culture medium. PMID- 29334067 TI - In Search of the Antimicrobial Potential of Benzimidazole Derivatives. AB - A broad series of 4,5,6,7-tetrahalogenated benzimidazoles and 4-(1H-benzimidazol 2-yl)-benzene-1,3-diol derivatives was tested against selected bacteria and fungi. For this study three plant pathogens Colletotrichum sp., Fusarium sp., and Sclerotinia sp., as well as Staphylococcus sp., Enterococcus sp., Escherichia sp., Enterobacter sp., Klebsiella spp. , and Candida spp. as human pathogens were used. MIC values and/or area of growth reduction method were applied in order to compare the activity of the synthesized compounds. From the presented set of 22 compounds, only 8, 16, 18 and 19 showed moderate to good inhibition against bacterial strains. Against Candida strains only compound 19 with three hydroxyl substituted benzene moiety presented high inhibition at nystatin level or lower. PMID- 29334068 TI - Microbial Products and Biofertilizers in Improving Growth and Productivity of Apple - a Review. AB - The excessive use of mineral fertilizers causes many negative consequences for the environment as well as potentially dangerous effects of chemical residues in plant tissues on the health of human and animal consumers. Bio-fertilizers are formulations of beneficial microorganisms, which upon application can increase the availability of nutrients by their biological activity and help to improve soil health. Microbes involved in the formulation of bio-fertilizers not only mobilize N and P but mediate the process of producing crops and foods naturally. This method avoids the use of synthetic chemical fertilizers and genetically modified organisms to influence the growth of crops. In addition to their role in enhancing the growth of the plants, biofertilizers can act as biocontrol agents in the rhizosphere at the same time. Biofertilizers are very safe for human, animal and environment. The use of Azotobacter, Azospirillum, Pseudomonas, Acetobacter, Burkholderia, Bacillus, Paenibacillus and some members of the Enterobacteriaceae is gaining worldwide importance and acceptance and appears to be the trend for the future. PMID- 29334069 TI - Quantitative Estimation of Porcine Endogenous Retrovirus Release from PK15 Cells. AB - The present study focuses on the assessment of porcine endogenous retrovirus (PERV) release from PK15 cells in a time dependent manner. The highest amount of PERV A RNA was detected in PK15 cells after 16 hours of culture. The highest amount of PERV B RNA was detected in PK15 cells after 20 hours. The highest amount of both subtypes RNAs was detected in culture medium after 32 hours of culture. The peaks of PERV reverse transcriptase (RT) activity were detected after 28 h of culture in PK15 cells and after 32 hours in the culture medium. The monitoring of PERV release from PK15 cell line may be useful for the evaluation of PERV replication. PMID- 29334070 TI - Ethanol Production Potential of Ethanol-Tolerant Saccharomyces and Non Saccharomyces Yeasts. AB - Four ethanologenic ethanol-tolerant yeast strains, Saccharomyces cerevisiae (ATKU132), Saccharomycodes ludwigii (ATKU47), and Issatchenkia orientalis (ATKU5 60 and ATKU5-70), were isolated by an enrichment technique in yeast extract peptone dextrose (YPD) medium supplemented with 10% (v/v) ethanol at 30 degrees C. Among non-Saccharomyces yeasts, Sd. ludwigii ATKU47 exhibited the highest ethanol-tolerance and ethanol production, which was similar to S. cerevisiae ATKU132. The maximum range of ethanol concentrations produced at 37 degrees C by S. cerevisiae ATKU132 and Sd. ludwigii ATKU47 from an initial D-glucose concentration of 20% (w/v) and 28% (w/v) sugarcane molasses were 9.46-9.82% (w/v) and 8.07-8.32% (w/v), respectively. PMID- 29334071 TI - Genetic Variability and Proteome Profiling of a Radiation Induced Cellulase Mutant Mushroom Pleurotus florida. AB - We report the genetic similarity changes between a mutant mushroom (Pleurotus florida, designated as PfCM4) having increased cellulolytic activity developed through radiation mutagenesis and its wild type by amplified fragment length polymorphism (AFLP). On average, 23 AFLP fragments were amplified per primer combination, and a total of 286 polymorphic fragments (78.57% polymorphism) with maximal fragment length of 1365 base pairs (bp) were obtained. The genetic similarity between wild type and PfCM4 was found to be 22.30%. In addition, mycelial and secreted protein profiling by 2D-PAGE showed at least three and five different protein spots in the range of 25 kD to 100 kD, respectively, in PfCM4. It seems that the variation in genetic similarity and different expression of both mycelial and secreted proteins in PfCM4 in comparison to the wild type could likely be correlated with its increased cellulolytic activity effected by the irradiation. PMID- 29334072 TI - Basidiospore and Protoplast Regeneration from Raised Fruiting Bodies of Pathogenic Ganoderma boninense. AB - Ganoderma boninense, a phytopathogenic white rot fungus had sought minimal genetic characterizations despite huge biotechnological potentials. Thus, efficient collection of fruiting body, basidiospore and protoplast of G. boninense is described. Matured basidiocarp raised under the glasshouse conditions yielded a total of 8.3 * 104 basidiospores/ml using the low speed centrifugation technique. Mycelium aged 3-day-old treated under an incubation period of 3 h in lysing enzyme from Trichoderma harzianum (10 mg/ml) suspended in osmotic stabilizer (0.6 M potassium chloride and 20 mM dipotassium phosphate buffer) yielded the highest number of viable protoplasts (8.9 * 106 single colonies) among all possible combinations tested (regeneration media, age of mycelium, osmotic stabilizer, digestive enzyme and incubation period). PMID- 29334073 TI - Simultaneous Biodegradation of Phenol and n-Hexadecane by Cryogel Immobilized Biosurfactant Producing Strain Rhodococcus wratislawiensis BN38. AB - The capability of the biosurfactant-producing strain Rhodococcus wratislawiensis BN38 to mineralize both aromatic and aliphatic xenobiotics was proved. During semicontinuous cultivation 11 g/l phenol was completely degraded within 22 cycles by Rhodococcus free cells. Immobilization in a cryogel matrix was performed for the first time to enhance the biodegradation at multiple use. A stable simultaneous hydrocarbon biodegradation was achieved until the total depletion of 20 g/l phenol and 20 g/l n-hexadecane (40 cycles). The alkanotrophic strain R. wratislawiensis BN38 preferably degraded hexadecane rather than phenol. SEM revealed well preserved cells entrapped in the heterogeneous super-macroporous structure of the cryogel which allowed unhindered mass transfer of xenobiotics. The immobilized strain can be used in real conditions for the treatment of contaminated industrial waste water. PMID- 29334074 TI - Effects of Selected Herbicides on Growth and Nitrogen Fixing Activity of Stenotrophomonas maltophilia (Sb16). AB - A study was carried out to determine the effects of paraquat, pretilachlor and 2, 4-D on growth and nitrogen fixing activity of Stenotrophomonas maltophilia (Sb16) and pH of Jensen's N-free medium. The growth of Sb16 and pH of medium were significantly reduced with full (X) and double (2X) doses of tested herbicides, but nitrogen fixing activity was decreased by 2X doses. The nitrogenase activity had the highest value in samples treated with 1/2X of 2, 4-D on fifth incubation day, but 2X of 2, 4-D had the most adverse effect. An inhibition in the growth and nitrogenase activity was recovered on the last days of incubation. PMID- 29334075 TI - Classifying vortex wakes using neural networks. AB - Unsteady flows contain information about the objects creating them. Aquatic organisms offer intriguing paradigms for extracting flow information using local sensory measurements. In contrast, classical methods for flow analysis require global knowledge of the flow field. Here, we train neural networks to classify flow patterns using local vorticity measurements. Specifically, we consider vortex wakes behind an oscillating airfoil and we evaluate the accuracy of the network in distinguishing between three wake types, 2S, 2P + 2S and 2P + 4S. The network uncovers the salient features of each wake type. PMID- 29334077 TI - Magnitude of the current in 2D interlayer tunneling devices. AB - Using the Bardeen tunneling method with first-principles wave functions, computations are made of the tunneling current in graphene/hexagonal-boron nitride/graphene (G/h-BN/G) vertical structures. Detailed comparison with prior experimental results is made, focusing on the magnitude of the achievable tunnel current. With inclusion of the effects of translational and rotational misalignment of the graphene and the h-BN, predicted currents are found to be about 15* larger than experimental values. A reduction in this discrepancy, to a factor of 2.5*, is achieved by utilizing a realistic size for the band gap of the h-BN, hence affecting the exponential decay constant for the tunneling. PMID- 29334076 TI - Pt decorated MoS2 nanoflakes for ultrasensitive resistive humidity sensor. AB - In this work, we report the fabrication of a low power, humidity sensor where platinum nanoparticles (NPs) decorated few-layered Molybdenum disulphide (MoS2) nanoflakes have been used as the sensing layer. A mixed solvent was used to exfoliate the nanoflakes from the bulk powder. Then the Pt/MoS2 composites were prepared by reducing Pt NPs from chloroplatinic acid hexahydrate using a novel reduction technique using sulfide salt. The successful reduction and composite preparation were confirmed using various material characterization tools like Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM), X-Ray Diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Raman spectroscopy and UV-visible spectroscopy (UV-Vis). The humidity sensors were prepared by drop coating the Pt-decorated MoS2 on gold interdigitated electrodes and then exposed to various levels of relative humidity (RH). Composites with different weight ratios of Pt were tested and the best response was shown by the Pt/MoS2 (0.25:1) sample with a record high response of ~4000 times at 85% RH. The response and recovery times were ~92 seconds and ~154 seconds respectively with repeatable behavior. The sensor performance was found to be stable when tested over a few months. The underlying sensing mechanisms along with detailed characterization of the various composites have been discussed. PMID- 29334078 TI - High PRF ultrafast sliding compound doppler imaging: fully qualitative and quantitative analysis of blood flow. AB - Ultrafast compound Doppler imaging based on plane-wave excitation (UCDI) can be used to evaluate cardiovascular diseases using high frame rates. In particular, it provides a fully quantifiable flow analysis over a large region of interest with high spatio-temporal resolution. However, the pulse-repetition frequency (PRF) in the UCDI method is limited for high-velocity flow imaging since it has a tradeoff between the number of plane-wave angles (N) and acquisition time. In this paper, we present high PRF ultrafast sliding compound Doppler imaging method (HUSDI) to improve quantitative flow analysis. With the HUSDI method, full scanline images (i.e. each tilted plane wave data) in a Doppler frame buffer are consecutively summed using a sliding window to create high-quality ensemble data so that there is no reduction in frame rate and flow sensitivity. In addition, by updating a new compounding set with a certain time difference (i.e. sliding window step size or L), the HUSDI method allows various Doppler PRFs with the same acquisition data to enable a fully qualitative, retrospective flow assessment. To evaluate the performance of the proposed HUSDI method, simulation, in vitro and in vivo studies were conducted under diverse flow circumstances. In the simulation and in vitro studies, the HUSDI method showed improved hemodynamic representations without reducing either temporal resolution or sensitivity compared to the UCDI method. For the quantitative analysis, the root mean squared velocity error (RMSVE) was measured using 9 angles (-12 degrees to 12 degrees ) with L of 1-9, and the results were found to be comparable to those of the UCDI method (L = N = 9), i.e. ?0.24 cm s-1, for all L values. For the in vivo study, the flow data acquired from a full cardiac cycle of the femoral vessels of a healthy volunteer were analyzed using a PW spectrogram, and arterial and venous flows were successfully assessed with high Doppler PRF (e.g. 5 kHz at L = 4). These results indicate that the proposed HUSDI method can improve flow visualization and quantification with a higher frame rate, PRF and flow sensitivity in cardiovascular imaging. PMID- 29334079 TI - First heating measurements of endovascular stents in magnetic particle imaging. PMID- 29334080 TI - Effects of microarchitecture and mechanical properties of 3D microporous PLLA PLGA scaffolds on fibrochondrocyte and L929 fibroblast behavior. AB - There are several reports studying cell behavior on surfaces in 2D or in hydrogels in 3D. However, cell behavior in 3D microporous scaffolds has not been investigated extensively. In this study, poly(L-lactic acid)/poly(lactic acid-co glycolic acid) (PLLA/PLGA)-based microporous scaffolds were used to study the effects of scaffold microarchitecture and mechanical properties on the behavior of two different cell types, human meniscal fibrochondrocytes and L929 mouse fibroblasts. In general, cell attachment, spreading and proliferation rate were mainly regulated by the strut (pore wall) stiffness. Increasing strut stiffness resulted in an increase in L929 fibroblast attachment and a decrease in fibrochondrocyte attachment. L929 fibroblasts tended to get more round as the strut stiffness increased, while fibrochondrocytes tended to get more elongated. Cell migration increased for both cell types with the increasing pore size. Migrating L929 fibroblasts tended to get more round on the stiff scaffolds, while fibrochondrocytes tended to get more round on the soft scaffolds. This study shows that the behavior of cells on 3D microporous scaffolds is mainly regulated by pore size and strut stiffness, and the response of a cell depends on the stiffness of both cells and materials. This study could be useful in designing better scaffolds for tissue engineering applications. PMID- 29334081 TI - Bio-inspired all-optical artificial neuromast for 2D flow sensing. AB - We present the design, fabrication and testing of a novel all-optical 2D flow velocity sensor, inspired by a fish lateral line neuromast. This artificial neuromast consists of optical fibres inscribed with Bragg gratings supporting a fluid force recipient sphere. Its dynamic response is modelled based on the Stokes solution for unsteady flow around a sphere and found to agree with experimental results. Tuneable mechanical resonance is predicted, allowing a deconvolution scheme to accurately retrieve fluid flow speed and direction from sensor readings. The optical artificial neuromast achieves a low frequency threshold flow sensing of 5 mm s-1 and 5 MUm s-1 at resonance, with a typical linear dynamic range of 38 dB at 100 Hz sampling. Furthermore, the optical artificial neuromast is shown to determine flow direction within a few degrees. PMID- 29334083 TI - Solvated-electron production using cyanocuprates is compatible with the UV environment on a Hadean-Archaean Earth. AB - UV-driven photoredox processing of cyanocuprates can generate simple sugars necessary for prebiotic synthesis. We investigate the wavelength dependence of this process from 215 to 295 nm and generally observe faster rates at shorter wavelengths. The most efficient wavelengths are accessible to a range of potential prebiotic atmospheres, supporting the potential role of cyanocuprate photochemistry in prebiotic synthesis on the early Earth. PMID- 29334082 TI - Economic costs due to workers' sick leave at wastewater treatment plants in Bulgaria. AB - BACKGROUND: The compensatory mechanisms of social security include expenses for sick leave. The aim of the study is to determine the economic cost due to sick leave among workers in wastewater treatment plants (WWTPs), comparing with the same economic indicators of the National Social Security Institute (NSSI) in Bulgaria. MATERIAL AND METHODS: The sick leave of 111 workers at 3 WWTPs was studied in the period 2012-2014 on the grounds of registered absences from work due to temporary incapacity for work. The economic indicators of the NSSI, the gross salary at WWTPs, payable social security contributions and compensatory payments for sick leave have been used for economic cost calculation for temporary incapacity of the workers. RESULTS: The frequency of cases and the frequency of lost days due to temporary incapacity were increased in the observed period at WWTPs and in Bulgaria, and it is significantly higher for the employed at WWTPs. The percentage share of workers equivalent to 1.66% at WWTPs have not worked for an entire year as a result of temporary incapacity in 2012, 2.76% - in 2013, and 4.61% - in 2014. The economic burden due to sick leave at WWTPs was raised from EUR 4913.02 in 2012 to EUR 16 895.80 for 2014 for employers and the NSSI. CONCLUSIONS: The frequency of cases and the frequency of lost days due to temporary incapacity were increased in the observed period at WWTPs and in Bulgaria, and it is significantly higher for the employed at WWTPs. The economic burden was equally distributed between employers and the NSSI. Med Pr 2018;69(2):129-141. PMID- 29334085 TI - SpyCatcher-SpyTag mediated in situ labelling of progeny baculovirus with quantum dots for tracking viral infection in living cells. AB - A non-invasive labelling strategy is proposed to label baculovirus via genetic insertion of a SpyTag into the viral glycoprotein, followed by specific conjugation with the SpyCatcher protein on modified quantum dots (QDs) through an isopeptide bond. The labelling method is convenient and efficient and shows little attenuation of viral infectivity. Therefore, it is a biologically compatible technique for tracking viral infection. PMID- 29334084 TI - A cyanine-based fluorescent cassette with aggregation-induced emission for sensitive detection of pH changes in live cells. AB - An aggregation-induced emission (AIE) cyanine-based fluorescent cassette with a large pseudo-Stokes shift was designed and prepared to sensitively image pH changes in live cells via through-bond energy transfer (TBET) from a tetraphenylethene (TPE) donor to a cyanine acceptor. PMID- 29334086 TI - N-Doped graphene-supported PdCu nanoalloy as efficient catalyst for reducing Cr(vi) by formic acid. AB - Reducing Cr(vi) to Cr(iii) with formic acid is desirable for environmental protection, but the sluggish kinetics limits its practical application, which currently motivates the intensive study of efficient catalysts for this redox reaction. Here bimetallic PdCu nanoalloy (~5 nm in size) supported by N-doped graphene was synthesized through a one-pot hydrothermal process. The catalytic activity of PdCu nanoalloy highly depends on the Pd/Cu atomic ratio and N-doped graphene support. The obtained Pd6Cu4/NG shows superior catalysis towards the Cr(vi) reduction by formic acid with a high kinetic constant (kn = 23.2 min-1 mg 1) and a low activation energy (Ea = 34.9 kJ mol-1). Active H atoms were found to be the exact reductant for the Cr(vi) reduction, quite different from the reported H2-reduction route. The enhanced catalysis originates from the electronic and geometric modification of active Pd after formation of PdCu alloy. Electron transfer from Cu to Pd enhances the electron density of Pd atoms, which favors the adsorption of the bridging formate intermediate and subsequent generation of active H atoms over PdCu/NG. The catalyst can be recycled five times without obvious loss of activity. Our work provides an example to explore the alloying effect on the catalytic behavior of PdCu alloy, which may shed light on developing other advanced nanoalloys for Cr(vi) reduction. PMID- 29334087 TI - Achiral non-fluorescent molecule assisted enhancement of circularly polarized luminescence in naphthalene substituted histidine organogels. AB - A naphthalene substituted histidine derivative was found to form an organogel showing circularly polarized luminescence (CPL) and the addition of non fluorescent achiral benzoic acids could efficiently enhance the CPL via non covalent interactions. PMID- 29334088 TI - Chemically accurate adsorption energies for methane and ethane monolayers on the MgO(001) surface. AB - A hybrid QM:QM method that combines MP2 as high-level method on cluster models with density functional theory (PBE+D2) as low-level method on periodic models is applied to adsorption of methane and ethane on the MgO(001) surface for which reliable experimental desorption enthalpies are available. Two coverages are considered, monolayer (every second Mg2+ ion occupied) and one quarter coverage (one of eight Mg2+ ions occupied). Structure optimizations are performed at the hybrid MP2:(PBE+D2) level, with the MP2 energies and forces counterpoise corrected for basis set superposition error and extrapolated to the complete basis set limit. For the MP2 calculations on the adsorbate monolayer a two-body expansion of the lateral molecule-molecule interactions is applied. Higher order correlation effects are evaluated at the hybrid MP2:(PBE+D2) equilibrium structures as coupled cluster [CCSD(T)] - MP2 differences adopting smaller basis sets. The final adsorption energies obtained for monolayer coverage are -14.0 +/- 1.0 and -23.3 +/- 0.6 kJ mol-1 for CH4.MgO(001) and C2H6.MgO(001), respectively. They agree within 1 kJ mol-1 - well within chemical accuracy limits - with reference energies of -15.0 +/- 0.6 and -24.4 +/- 0.6 kJ mol-1, respectively. The latter have been derived from measured desorption enthalpy barriers, taking zero point vibrational energy (ZPVE) and thermal enthalpy contributions into account. PMID- 29334089 TI - Asymmetric [4+2] annulations to construct norcamphor scaffolds with 2 cyclopentenone via double amine-thiol catalysis. AB - An efficient double catalytic system, combining chiral amine and 2 mercaptobenzoic acid, is applied for alpha',beta-regioselective [4+2] annulations of 2-cyclopentenone with a diversity of activated alkenes, constructing multifunctional chiral bicycle[2,2,1]heptane scaffolds in good to excellent yields and enantioselectivities. In comparison with the traditional cross dienamine species between 2-cyclopentenone and chiral amine, the interrupted enamine intermediate containing a covalently linked thiol catalyst shows significantly improved reactivity. PMID- 29334090 TI - Supramolecular photosensitizers rejuvenate photodynamic therapy. AB - Owing to its spatiotemporal selectivity and noninvasive nature, photodynamic therapy (PDT) has become a clinically promising approach for the treatment of a wide range of cancers and other diseases. However, the full potential of PDT has not been achieved thus far as a consequence of the lack of optimal photosensitizers (PSs) and/or smart transport/activation strategies. These problems, which unfortunately lie at the core of the PDT paradigm, include the oxygen reliance limits, the effect of PDT on hypoxic tumors, limitations of light penetration, and undesired skin photosensitization induced by "always on" PSs. Recently, supramolecular approaches, which rely on the use of non-covalent interactions to construct biomedical active materials, have become suitable methods for developing innovative PSs. Non-covalent interactions enable supramolecular PSs to have sensitive and controllable photoactivities, important elements needed to maximize photodynamic effects and minimize side effects. In addition, versatile supramolecular PS-assemblies can be designed so that PDT occurs synergistically with other therapeutic modalities, e.g., photothermal therapy, leading to a potential improvement of therapeutic effectiveness. In this review, recent progress made in the development of supramolecular PSs for rejuvenating PDT will be presented. Importantly, this discussion also provides a view of future advances that will likely be made in this area and their potential clinical applications. PMID- 29334091 TI - Selectivity shift from paraffins to alpha-olefins in low temperature Fischer Tropsch synthesis in the presence of carboxylic acids. AB - A shift of selectivity to long chain alpha-olefins has been observed during Fischer-Tropsch synthesis over Co catalysts in the presence of carboxylic acids. The total selectivity to alpha-olefins of 39% was obtained in the presence of acids. The effect has been ascribed to intermediate formation of esters which hinder secondary olefin hydrogenation. PMID- 29334092 TI - Synthetic cells produce a quorum sensing chemical signal perceived by Pseudomonas aeruginosa. AB - Recent developments in bottom-up synthetic biology (e.g., lipid vesicle technology integrated with cell-free protein expression systems) allow the generation of semi-synthetic minimal cells (in short, synthetic cells, SCs) endowed with some distinctive capacities of natural cells. In particular, such approaches provide technological tools and conceptual frameworks for the design and engineering of programmable SCs capable of communicating with natural cells by exchanging chemical signals. Here we describe the generation of giant vesicle based SCs which, via gene expression, synthesize in their aqueous lumen an enzyme that in turn produces a chemical signal. The latter is a small molecule, which is passively released in the medium and then perceived by the bacterium Pseudomonas aeruginosa, demonstrating that SCs and bacteria can communicate chemically. The results pave the way to a novel basic and applied research area where synthetic cells can communicate with natural cells, for example for exploring minimal cognition, developing chemical information technologies, and producing smart and programmable drug-producing/drug-delivery systems. PMID- 29334093 TI - Three-component difluoroalkylation and trifluoromethylthiolation/trifluoromethylselenolation of pi-bonds. AB - This report describes a new method for three-component difluoroalkylation and trifluoromethylthiolation/trifluoromethylselenolation of pi-bonds via air-stable SCF3 and SeCF3 reagents as free-radical initiators of ethyl iododifluoroacetate. beta-Proton elimination can be overcome effectively in this reaction system, and a broad substrate scope, including alkenes and alkynes, makes this approach practical and attractive. PMID- 29334094 TI - Nine-step total synthesis of (-)-strychnofoline. AB - Strychnofoline is a Strychnos alkaloid that has unique spirooxindole architecture and possesses important anticancer activity. Here, we have, for the first time, reported the enantioselective synthesis of strychnofoline proceeding in only nine steps from commercially available 6-methoxytryptamine. The efficiency of the synthesis derives from the use of two sequential transformation steps in the catalytic asymmetric construction of the spiro[pyrrolidine-3,3'-oxindole] motif in a facile manner. Our route is amenable to the synthesis of other natural and synthetic analogs of bioactive spirooxindole alkaloids to access their therapeutic potential. PMID- 29334095 TI - Gd3+-Doped MoSe2 nanosheets used as a theranostic agent for bimodal imaging and highly efficient photothermal cancer therapy. AB - Recently, two dimensional transition metal dichalcogenides (TMDCs) being used as nanomedicine have aroused great interest because of their unique photothermal properties. A simple liquid-phase method was used to prepare gadolinium (Gd3+) doped molybdenum selenide (MoSe2) nanosheets, and then using poly(ethylene glycol) (PEG) modification on the surface, MoSe2(Gd3+)-PEG nanosheets were obtained which had high stability in physiological solutions and showed no obvious toxicity in vivo. It revealed that Gd3+ used as a paramagnetic material for MoSe2(Gd3+)-PEG provided a strong contrast effect in magnetic resonance imaging, furthermore, the MoSe2 showed strong absorption in the near infrared region, and therefore, MoSe2(Gd3+)-PEG could be used as contrast agent for photoacoustic imaging (PAI). In in vitro experiments, it was found that MoSe2(Gd3+)-PEG could effectively increase the temperature to help kill cancer cells under laser irradiation. In vivo experiments showed that there was an enhanced permeation and retention effect in the tumor after intravenous injection measured using magnetic resonance/photoacoustic (MR/PA) bimodal imaging. After photothermal therapy, a significant suppression effect was achieved for tumors in mice by injection of these nanosheets with laser irradiation. This work emphasized that the simple doped TMDC nanomaterials when combined with treatment and imaging functions achieve a cancer therapy, which will provide a good opportunity for future diagnosis and treatment of cancer. PMID- 29334096 TI - Microwave-induced covalent functionalization of few-layer graphene with arynes under solvent-free conditions. AB - A non-conventional modification of exfoliated few-layer graphene (FLG) with different arynes under microwave (MW) irradiation and solvent-free conditions is reported. The described approach allows reaching fast, efficient and mild covalent functionalization of FLG. PMID- 29334097 TI - Artificial light-harvesting supramolecular polymeric nanoparticles formed by pillar[5]arene-based host-guest interaction. AB - Artificial light-harvesting nanoparticles were prepared from supramolecular polymers comprised of pillar[5]arene with anthracene-derived donors and acceptors through host-guest interactions. The resulting water-dispersible nanoparticles displayed efficient energy transfer and excellent light harvesting ability in part because the steric bulk of pillar[5]arene suppressed the self-quenching of the chromophores. PMID- 29334098 TI - How a tertiary diamine molecule chelates the silicon dimers of the Si(001) surface: a real-time scanning tunneling microscopy study. AB - The patterning of silicon surfaces by organic molecules emerges as an original way to fabricate innovative nanoelectronic devices. In this regard, we have studied how a diamine, N,N,N',N'-tetramethylethylenediamine (TMEDA, (CH3)2N [CH2]2-N(CH3)2), chelates the silicon dimers of the Si(001)-2 * 1 surface. Starting from very low coverage to surface saturation (at 300 K), we used real time scanning tunneling microscopy (STM) in a scanning-while-dosing approach. The images show that the molecules can adopt two bonding configurations: the cross trench (CT) configuration by bridging two adjacent dimer rows, and the end-bridge (EB) configuration by chelating two adjacent dimers in the same row. However, while CT dominates over EB at low coverage, the percentage of EB adducts steadily increases, until it becomes largely dominant at high molecular coverage. Above a critical coverage thetamol of ~0.13 monolayer (ML), a sudden change in the molecular imprints is seen, likely due to a change in the tunneling conditions. The EB stapling of two adjacent dimers in a row via a dual-dative bond (as shown by XPS) is achieved efficiently by the TMEDA molecule with a very high chemical selectivity. The EB is a unique configuration in amine adsorption chemistry, as it leads to the formation of a pair of first-neighbor, doubly-occupied dangling bonds. Further reactivity of the EB site with other molecules remains to be explored, and possible reaction schemes are envisaged. PMID- 29334099 TI - Composition-dependent emission linewidth broadening in lead bromide perovskite (APbBr3, A = Cs and CH3NH3) nanoparticles. AB - Lead halide perovskite nanoparticles (NPs) are attractive as they exhibit excellent color purity and have a tunable band gap, and can thus be applied in highly efficient photovoltaic and light-emitting diodes. Fundamental studies of emission linewidth broadening due to spectral shifts in perovskite NPs may suggest a way to improve their color purity. However, the carrier-induced Stark shift that causes spectral diffusion still requires investigation. In this study, we explore composition-related emission linewidth broadening by comparing CsPbBr3 and CH3NH3PbBr3 (MAPbBr3) perovskite NPs. We find that the MAPbBr3 NPs are more sensitive to fluctuations in the local electric fields than the CsPbBr3 NPs due to an intrinsic difference in the dipole moment between the two A cations (Cs and MA), which shows a carrier-induced Stark shift. The results indicate that the compositions of perovskite NPs are closely associated with emission linewidth broadening and they also provide insights into the development of NP-based devices with high color purity. PMID- 29334100 TI - First-principles simulation of local response in transition metal dichalcogenides under electron irradiation. AB - Electron beam irradiation by transmission electron microscopy (TEM) is a common and effective method for post-synthesis defect engineering in two-dimensional transition metal dichalcogenides (TMDs). Combining density functional theory (DFT) with relativistic scattering theory, we simulate the generation of such defects in monolayer group-VI TMDs, MoS2, WS2, MoSe2, and WSe2, focusing on two fundamental TEM-induced atomic displacement processes: chalcogen sputtering and chalcogen vacancy migration. Our calculations show that the activation energies of chalcogen sputtering depend primarily on the chalcogen species, and are smaller in selenides than in sulfides. Meanwhile, chalcogen vacancy migration activation energies hinge on the transition metal species, being smaller in TMDs containing Mo. Incorporating these energies into a relativistic, temperature dependent cross section, we predict that, with appropriate TEM energies and temperatures, one can induce migrations in all four group-VI TMDs without simultaneously producing vacancies at a significant rate. This can allow for the formation of complicated defects and extended patterns, and thus, for the controlled manipulation of TMD crystals for targeted functionality, without the risk of substantial collateral damage. PMID- 29334101 TI - Semiconductor-metal structural phase transformation in MoTe2 monolayers by electronic excitation. AB - Optical modulation of the crystal structure and materials properties is an increasingly important technique for functionalization of two-dimensional and layered semiconductors, where traditional methods like chemical doping are ineffective. Controllable transformation between the semiconducting (H) and semimetallic (T') polytypes of transition metal chalcogenide monolayers is of central importance to two-dimensional electronics, and thermally-driven and strain-driven examples of this phase transformation have been previously reported. However, the possibility of a H-T' phase transformation driven by electronic or optical excitation is less explored and little is known about the potential energy surface and the magnitude of activation barriers or the mechanism of the phase transformation in the excited state. Here, we model the electronic and ionic structure of excited MoTe2 crystals and demonstrate how electronic excitation leads to a Fermi-surface-nesting driven softening of phonon modes at the Brillouin zone boundary and the subsequent stabilization of a low energy intermediate crystal structure along the semiconductor-metal phase transition pathway. The significantly reduced barriers for this transformation upon electronic excitation suggest that optical excitation may enable rapid and controllable synthesis of lateral semiconductor-metal heterophase homojunctions in monolayer materials for use in next-generation two-dimensional nano electronics applications. PMID- 29334102 TI - Ru nanoparticles dispersed on magnetic yolk-shell nanoarchitectures with Fe3O4 core and sulfoacid-containing periodic mesoporous organosilica shell as bifunctional catalysts for direct conversion of cellulose to isosorbide. AB - A green and sustainable approach for biorefining involves the development of bifunctional catalysts for the one-pot conversion of cellulosic biomass to isosorbide. This requires highly efficient, easily separated and versatile metal acid catalysts for hydrolysis-hydrogenation-dehydration cascade reactions. Herein, we report a new type of metal-acid bifunctional catalyst by dispersing Ru nanoparticles (NPs) on magnetic yolk-shell nanoarchitectures comprising an Fe3O4 core and a sulfoacid (SO3H)-containing periodic mesoporous organosilica shell. The resultant magnetic Ru-SO3H nanoreactors are highly porous and have large surface areas (>350 m2 g-1), uniform mesopores (~3.8 nm), well-dispersed Ru NPs (<1.5 wt%) and superior magnetization. Tailoring the size of the Ru NPs and the amount of SO3H moieties produced a highly efficient Ru-SO3H nanocatalyst, which delivered a high yield of isosorbide of 58.1% with almost complete conversion of cellulose in 2 h and achieved maximum productivity of 2.19 molIsosor h-1 gRu-1, which was one order of magnitude higher than that achieved using other Ru containing acidic catalysts. Moreover, the elaborately fabricated Ru-SO3H nanocatalyst can be easily separated by applying an external magnetic field and can be cycled four times. This work reveals new possibilities for the fabrication of highly efficient, easily separated metal-acid catalysts in virtue of the concept of nanoreactor design. PMID- 29334103 TI - Unexpected cleavage of upper rim-bridged calix[4]arenes leading to linear oligophenolic derivatives. AB - Regioselective meta-mercuration followed by Pd-catalysed intramolecular bridging gave birth to a novel type of calixarene bearing a single bond bridge between the meta positions of the neighboring aromatic subunits. These bridged derivatives possess extremely distorted cavities that imply possible amended properties over common calix[4]arenes. This new type of calixarene reactivity can be documented by acid-/electrophile-mediated cleavage of the basic macrocyclic skeleton leading to open oligomeric structures-the behavior of which has never been observed before in classic calix[4]arenes bearing alkoxy groups on the lower rim. PMID- 29334104 TI - One-pot cascade synthesis of azabicycles via the nitro-Mannich reaction and N alkylation. AB - A one-pot, metal-free process for the synthesis of azabicycles is developed. The key transformations involved a cascade of double intramolecular cyclizations via the nitro-Mannich reaction and N-alkylation, providing various ring systems of azabicycles in yields up to 81% and an isomeric ratio of 62 : 1. This approach offers considerable advantages in terms of the handling of small molecules, the flexibility to introduce a functionalized side chain, and gives direct access to various azabicycles. PMID- 29334105 TI - Specific labeling of mitochondria of Chlamydomonas with cationic helicene fluorophores. AB - Twelve cationic helicenes and one triangulene were tested for the specific labeling of mitochondria from algal cells. Octyl ester derivative 5 readily penetrates algal cells and gives rise to clear fluorescence patterns when it is used at concentrations in the MUM range. Under these conditions, cell structures are well preserved and cell survival is not compromised. Cationic helicene compounds such as 5 provide new useful tools for examining the mitochondrial network and its dynamics including fission and fusion events. PMID- 29334106 TI - Large-scale preparation of a 3D patchy surface with dissimilar dendritic amphiphiles. AB - We show here the first example of the large-scale surface decoration of a macroscopic and porous monolith with dissimilar micropatches. Branched polyethylenimine (PEI) is alkylated with poly(propylene glycol) (PPG), leading to a reverse-micelle-like dendritic amphiphile of PEI@PPG. Peralkylation and partial quaternization of the residual amino groups of PEI@PPG produces a cationic dendritic amphiphile of PEI-N+@PPG. The two dendritic amphiphiles jointly stabilize a water-in-oil high-internal-phase emulsion to prepare open-cellular monoliths of macroscopic size, with the monolith pore surface dictated by the cationic and neutral dendritic amphiphiles. The amino groups of the neutral amphiphile are further derivatized into anionic dithiocarbamates. The resulting monolith, along with the dissimilar functional patches on the surface, simultaneously eliminates multiple anionic and cationic micropollutants from water to very low residues, and affords the pH-triggered sequential release. Our strategy of using dissimilar dendritic amphiphiles rather than block copolymers as surface building blocks can confer the resulting surface with robust and predesigned microenvironments besides the conventional coacervate structure, and thus can afford more functions. PMID- 29334108 TI - Porous layered stacked MnCo2O4 cubes with enhanced electrochemical capacitive performance. AB - The development of new electrode materials with various components, structures, morphologies and porosities is critical for improving the performance of supercapacitors. Here, we report a facile strategy for synthesizing porous layered stacked MnCo2O4 cubes through a hydrothermal method, followed by annealing treatment. Compared with other morphologies of MnCo2O4, the specific capacitance of porous layered stacked MnCo2O4 cubes reaches 480.5 F g-1 at a current density of 1 A g-1. Furthermore, porous layered stacked MnCo2O4 cubes show an ultrahigh capacity retention of 75.7% even at a current density of 25 A g 1 and good cycling stability with 96.6% specific capacitance retained after 3000 cycles, which makes porous layered stacked MnCo2O4 cubes a great potential electrode material for supercapacitor applications. PMID- 29334109 TI - A multifunctional supramolecular hydrogel: preparation, properties and molecular assembly. AB - A novel supramolecular hydrogel was designed and constructed by molecular self assembly of a cationic gemini surfactant, 1,3-bis(N,N-dimethyl-N-cetylammonium)-2 propylacrylate dibromide (AGC16), and an anionic aromatic compound, trisodium 1,3,6-naphthalenetrisulfonate (NTS). Owing to its unique structure, the hydrogel (abbreviated as AGC16/NTS) has the potential to be used as a multifunctional drug delivery system. The structure and properties of AGC16/NTS were characterized by rheological measurements, differential scanning calorimetry, variable-temperature 1H nuclear magnetic resonance, ultraviolet-visible spectroscopy, variable temperature fluorescence emission spectroscopy, cryogenic scanning electron microscopy, transmission electron microscopy and X-ray diffraction methods. The rheological and DSC analysis results revealed that the gel AGC16/NTS was formed below 57 degrees C. It was found from UV-vis, fluorescence and 1H NMR spectroscopy characterization that aromatic pi-pi stacking and hydrophobic forces were indispensable to the formation of AGC16/NTS. The Cryo-SEM and TEM observation results indicated that gelators AGC16 and NTS self-assembled into one dimensional fibers which further tightly intertwined to form a three-dimensional network structure. Based on the spectroscopic data and X-ray diffraction measurement results, a self-assembly model was proposed, helping to further understand the molecular self-assembly mechanism of AGC16/NTS. It was also found that the electrostatic force, hydrophobic force and pi-pi interaction were the three main driving forces for the gelation. The multiple non-covalent interactions between AGC16 and NTS endowed the hydrogel with excellent performance when the hydrogel was used as a carrier for drug delivery, due to multiple micro-domains within the same gel system. We further investigated the encapsulation and releasing properties of the hydrogel, using the hydrophobic model drug curcumin (Cur) and the model drug naproxen sodium (Npx) with aromatic ring structure. The fluorescence spectroscopy analysis confirmed that Npx was carried through aromatic pi-pi stacking and the 1H NMR measurement result revealed that Cur was encapsulated within the hydrophobic cavities of AGC16/NTS through hydrophobic interaction. Moreover, the drug release study results showed a sustained release of drugs from the hydrogel, indicating good application prospects in exploring new multifunctional drug delivery systems. PMID- 29334111 TI - Constructing two-dimensional CuFeSe2@Au heterostructured nanosheets with an amorphous core and a crystalline shell for enhanced near-infrared light water oxidation. AB - Although substantial efforts have been made toward the synthesis of noble metal semiconductor heteronanostructures, direct in situ synthesis of two-dimensional (2D) core-shell semiconductor@noble metal heterostructured nanosheets remains largely unexplored. Herein, we report the synthesis of a novel 2D core-shell CuFeSe2@Au heterostructured nanosheet with an amorphous core and a crystalline shell based on the reversed growth of Au nanosheets on the CuFeSe2 frameworks under near-infrared (NIR) illumination. The nanosheet exhibits strong absorbance in the NIR region, and the valence band top of CuFeSe2@Au nanosheets is higher than the oxidation potential of O2/H2O. Owing to the unique structural features, the resulting nanosheets show excellent photocatalytic activity and high stability toward water oxidation with an O2 generation rate up to 3.48 mmol h-1 g 1 compared to those of the constituent materials under NIR light irradiation (lambda > 850 nm). This work brings new opportunities to prepare 2D core-shell semiconductor@noble metal heterostructured nanosheets, which can be applied as photocatalysts toward water splitting and solar energy conversion at long wavelengths. PMID- 29334114 TI - Sensing local pH and ion concentration at graphene electrode surfaces using in situ Raman spectroscopy. AB - We report a novel approach to probe the local ion concentration at graphene/water interfaces using in situ Raman spectroscopy. Here, the upshifts observed in the G band Raman mode under applied electrochemical potentials are used to determine the charge density in the graphene sheet. For voltages up to +/-0.8 V vs. NHE, we observe substantial upshifts in the G band Raman mode by as much as 19 cm-1, which corresponds to electron and hole carrier densities of 1.4 * 1013 cm-2 and Fermi energy shifts of +/-430 meV. The charge density in the graphene electrode is also measured independently using the capacitance-voltage characteristics (i.e., Q = CV), and is found to be consistent with those measured by Raman spectroscopy. From charge neutrality requirements, the ion concentration in solution per unit area must be equal and opposite to the charge density in the graphene electrode. Based on these charge densities, we estimate the local ion concentration as a function of electrochemical potential in both pure DI water and 1 M KCl solutions, which span a pH range from 3.8 to 10.4 for pure DI water and net ion concentrations of +/-0.7 mol L-1 for KCl under these applied voltages. PMID- 29334115 TI - Label-free multidimensional information acquisition from optogenetically engineered cells using a graphene transistor. AB - The optogenetic technique, which allows the manipulation of cellular activity patterns in space and time by light, has transformed the field of neuroscience. However, acquiring multidimensional optogenetic information remains challenging despite the fact that several cellular information detection methods have been proposed. Herein, we present a new method to acquire label-free multidimensional information from optogenetically engineered cells using a graphene transistor. Using a graphene film to form a strong densely packed layer with cells, the cellular action potentials were characterized as light-activated transistor conductance signals, which quantified the multidimensional optogenetic information. Based on this approach, some important cellular optogenetic information, including electrophysiological state, cell concentration, expression levels of opsin and response to variable light intensity, were also precisely detected. Furthermore, the graphene transistor was also used to distinguish cells expressing different channelrhodopsin-2 variants. Our study offers a general detection method of multidimensional optogenetic information for extending the applications of the optogenetic technique and provides a novel sensor for the development of future biological prosthetic devices. PMID- 29334116 TI - Interface engineering of a CeO2-Cu3P nanoarray for efficient alkaline hydrogen evolution. AB - It is of great importance to design and develop highly active electrocatalysts for the hydrogen evolution reaction (HER) under alkaline conditions. In this work, we report the development of a CeO2-Cu3P nanoarray supported on nickel foam (CeO2-Cu3P/NF) as an excellent HER catalyst with the demand of an overpotential of only 148 mV to deliver a geometrical catalytic current density of 20 mA cm-2 in 1.0 M KOH. Remarkably, this catalyst also shows strong long-term electrochemical durability for at least 100 h with nearly 100% Faradaic efficiency. Density functional theory calculations reveal that the CeO2-Cu3P/NF hybrid has a lower water dissociation energy and a more thermo-neutral hydrogen adsorption free energy. PMID- 29334117 TI - The relationship between office type and job satisfaction: Testing a multiple mediation model through ease of interaction and well-being. AB - Objectives This cross-sectional study investigated the associations between office type (cellular, shared-room, small open-plan, and medium-sized open-plan) and employees' ease of interaction with coworkers, subjective well-being, and job satisfaction. Methods A brief survey including measures of office type, ease of interaction with coworkers, subjective well-being, and job satisfaction was sent electronically to 1500 Swedish real-estate agents, 271 of whom returned usable surveys. The data were analyzed using a regression-based serial multiple mediation model (PROCESS Model 6), which tested whether the relationship between office type and job satisfaction would be mediated by ease of interaction and, in turn, subjective well-being. Results A negative relationship was found between the number of coworkers sharing an office and employees' job satisfaction. This association was serially mediated by ease of interaction with coworkers and subjective well-being, with employees working in small and medium-sized open-plan offices reporting lower levels of both these aspects than employees who work in either cellular or shared-room offices. Conclusions Open-plan offices may have short-term financial benefits, but these benefits may be lower than the costs associated with decreased job satisfaction and well-being. Therefore, decision makers should consider the impact of office type on employees rather than focusing solely on cost-effective office layout, flexibility, and productivity. PMID- 29334118 TI - Markers of proliferation and invasiveness in somatotropinomas. AB - Introduction In the search for markers of invasiveness of pituitary adenomas, we studied the expression of Ki-67 antigen, TOPO 2A (topoisomerase 2 alpha), AIP (Aryl Hydrocarbon Receptor-Interacting Protein) and VEGF (Vascular Endothelial Growth Factor) in somatotropinomas. Material and Methods We retrospectively studied a group of 31 patients who underwent pituitary tumour surgery. Expression of Ki-67, TOPO 2A, AIP and VEGF in surgical specimens was determined by immunohistochemistry. Relations between quantitatively determined markers and clinical symptoms, tumour features, and MR imaging, were analysed. Acromegaly was confirmed by hormonal tests in all patients studied. Local invasiveness (cavernous sinus penetration, optic chiasm compression or suprasellar extension) was observed in 18/31 patients (58,1%). Results Ki-67 was expressed in 77.4%, TOPO 2A in 87.1%, AIP in 83.8%, and VEGF in 87.1% of 31 cases of somatropinoma. Median values of Ki-67, TOPO 2A, AIP and cytoplasmic VEGF indices were 1.2% [IQR=2.2], 1.5% [IQR=1.6], 21.26% [IQR=20.1] and 20.4% [IQR=15.4], respectively. Ki-67, TOPO 2A, AIP and VEGF expression was not correlated with age nor with patient gender (p > 0.05). Only Ki-67 and TOPO 2A correlated with tumour size (for Ki-67: r=0.42, p=0.025; for TOPO 2A: r=0.53, p=0.003). Ki-67 and TOPO 2A levels were significantly higher in invasive compared to noninvasive somatropinomas (Ki67 mean values: 1.85+/-1.33% vs. 0.95+/-1.07%, p=0.024; TOPO 2A mean values: 2.19+/-1.63% vs. 1.45+/-1.23%, , p=0.011). Conclusions Ki-67, TOPO 2A, AIP and VEGF were expressed in over 70% of all somatotropinomas. Only Ki-67 and TOPO 2A expression correlated with tumour size and tumour invasiveness. PMID- 29334119 TI - Evaluation of Four Variants of the Thyroid Imaging Reporting and Data System (TIRADS) Classification in Patients with Multinodular Goitre - initial study. AB - Purpose The goal this study was to evaluate the utility of four variants of the Thyroid Imaging Reporting and Data System (TIRADS) in the differentiation of focal lesions in individuals with multinodular goiter. Materials and Methods The study was approved by the Local Bioethical Committee. Each patient gave informed consent before enrolment. A total of 163 nodules in 124 patients with multinodular goiter were evaluated by ultrasound. B-mode and PD imaging and strain elastography were performed. Archived images were evaluated via retrospective analysis using four different proposed TIRADS classifications Results Sensitivity and specificity of the Horvath, Park, Kwak, and Russ classifications were 0.625 and 0.769, 0.813 and 0.864, 0.938 and 0.667, and 0.875 and 0.293, respectively. Positive and negative predictive values were 0.227 and 0.95, 0.394 and 0.977, 0.234 and 0.99, and 0.119 and 0.956, respectively. Receive operating characteristic analysis suggests that the best differentiation potential was demonstrated by the Kwak classification with an area under the curve (AUC) of 0.896, followed by the Park (AUC = 0.872), Horvath (AUC = 0.774), and Russ (AUC = 0.729) classifications. Conclusion The TIRADS classification proposed by Kwak can be a useful tool in daily practice for the evaluation of thyroid cancer in individuals with multinodular goiter, particularly for selecting cases that require biopsy, which may improve and simplify clinical decision making. To adopt a definitive, comprehensive variant of the TIRADS classification with potential for universal, practical application, further prospective studies that include improvement of the lexicon and evaluation of the full spectrum of thyroid malignancy are warranted. PMID- 29334120 TI - Protein Phosphatase 1 dephosphorylates TDP-43 and suppresses its function in tau exon 10 inclusion. AB - Transactive response DNA-binding protein of 43 kDa (TDP-43) regulates RNA processing, including alternative splicing of tau exon 10. Pathological TDP-43 is hyperphosphorylated. However, how do the protein phosphatase(s) (PP) regulate TDP 43 phosphorylation is unclear. Here, we found that both PP1 and PP2A were coimmunoprecipitated with TDP-43. Treatment with calyculin A, but not with okadaic acid, increased TDP-43 phosphorylation at Ser379, Ser403/404, and Ser409/410 in cultured cells. PP1alpha, PP1beta, and PP1gamma interacted with TDP 43. Overexpression of PP1alpha and PP1gamma, but not PP1beta, suppressed TDP-43 phosphorylation at Ser403/404 and Ser409/410 and TDP-43-induced tau exon 10 inclusion. These findings suggest that PP1alpha and PP1gamma regulate TDP-43 phosphorylation and its function in tau exon 10 inclusion mainly through its phosphorylation at Ser403/404 and Ser409/410. PMID- 29334121 TI - The multipotency-to-commitment transition in Caenorhabditis elegans-implications for reprogramming from cells to organs. AB - In animal embryos, cells transition from a multipotential state, with the capacity to adopt multiple fates, into an irreversible, committed state of differentiation. This multipotency-to-commitment transition (MCT) is evident from experiments in which cell fate is reprogrammed by transcription factors for cell type-specific differentiation, as has been observed extensively in Caenorhabditis elegans. Although factors that direct differentiation into each of the three germ layer types cannot generally reprogram cells after the MCT in this animal, transcription factors for endoderm development are able to do so in multiple differentiated cell types. In one case, these factors can redirect the development of an entire organ in the process of "transorganogenesis". Natural transdifferentiation also occurs in a small number of differentiated cells during normal C. elegans development. We review these reprogramming and transdifferentiation events, highlighting the cellular and developmental contexts in which they occur, and discuss common themes underlying direct cell lineage reprogramming. Although certain aspects may be unique to the model system, growing evidence suggests that some mechanisms are evolutionarily conserved and may shed light on cellular plasticity and disease in humans. PMID- 29334122 TI - Inhibition of HSP90alpha protects cultured neurons from oxygen-glucose deprivation induced necroptosis by decreasing RIP3 expression. AB - Heat shock protein 90alpha (HSP90alpha) maintains cell stabilization and regulates cell death, respectively. Recent studies have shown that HSP90alpha is involved in receptor interacting protein 3 (RIP3)-mediated necroptosis in HT29 cells. It is known that oxygen and glucose deprivation (OGD) can induce necroptosis, which is regulated by RIP3 in neurons. However, it is still unclear whether HSP90alpha participates in the process of OGD-induced necroptosis in cultured neurons via the regulation of RIP3. Our study found that necroptosis occurs in primary cultured cortical neurons and PC-12 cells following exposure to OGD insult. Additionally, the expression of RIP3/p-RIP3, MLKL/p-MLKL, and the RIP1/RIP3 complex (necrosome) significantly increased following OGD, as measured through immunofluorescence (IF) staining, Western blotting (WB), and immunoprecipitation (IP) assay. Additionally, data from computer simulations and IP assays showed that HSP90alpha interacts with RIP3. In addition, HSP90alpha was overexpressed following OGD in cultured neurons, as measured through WB and IF staining. Inhibition of HSP90alpha in cultured neurons, using the specific inhibitor, geldanamycin (GA), and siRNA/shRNA of HSP90alpha, protected cultured neurons from necrosis. Our study showed that the inhibitor of HSP90alpha, GA, rescued cultured neurons not only by decreasing the expression of total RIP3/MLKL, but also by decreasing the expression of p-RIP3/p-MLKL and the RIP1/RIP3 necrosome. In this study, we reveal that inhibition of HSP90alpha protects primary cultured cortical neurons and PC-12 cells from OGD-induced necroptosis through the modulation of RIP3 expression. PMID- 29334123 TI - Cancer associated fibroblasts tailored tumor microenvironment of therapy resistance in gastrointestinal cancers. AB - Gastrointestinal cancers (GI), are a group of highly aggressive malignancies with heavy cancer-related mortalities. Even if continued development of therapy methods, therapy resistance has been a great obstruction for cancer treatment and thereby inevitably leads to depressed final mortality. Peritumoral cancer associated fibroblasts (CAFs), a versatile population assisting cancer cells to build a facilitated tumor microenvironment (TME), has been demonstrated exerting a promotion influence on cancer proliferation, migration, invasion, metastasis, and also therapy resistance. In this review, we provide an update progress in describing how CAFs mediate therapy resistance in GI by various means, meanwhile highlight the crosstalk between CAFs and cancer cells and present some vital signaling pathways activated by CAFs in this resistant process. Furthermore, we discuss the current advances in adopting novel drugs against CAFs and how the knowledge contributing to improved therapy efficacy in clinical practice. In sum, CAFs create a therapy-resistant TME in several aspects of GI progression, although some key problems about distinguishing CAFs subpopulations and controversial issues on pleiotropic CAFs in medication need to be solved for subsequent clinical application. Predictably, targeting therapy-resistant CAFs is a promising adjunctive treatment to benefit GI patients. PMID- 29334124 TI - Use of antiviral medications in drug reaction with eosinophilia and systemic symptoms (DRESS): A case of infantile DRESS. AB - A 3-month-old girl with Sturge-Weber syndrome presented with a morbilliform rash, eosinophilia, and fulminant liver failure to our tertiary pediatric hospital. She was diagnosed with drug reaction with eosinophilia and systemic symptoms complicated by viremia and evidence of viral hepatitis on liver biopsy. We discuss the role of viral reactivation in drug reaction with eosinophilia and systemic symptoms and the relevance of antiviral therapy in management. PMID- 29334125 TI - Determination of isoorientin levels in rat plasma after oral administration of Vaccinum bracteatum Thunb. methanol extract by high-performance liquid chromatography-tandem mass spectrometry. AB - A simple, sensitive and rapid liquid chromatography tandem mass spectrometry method (LC-MS/MS) was developed and validated for the determination of plasma isoorientin levels in rats. After simple protein precipitation using methanol, chromatographic analysis was performed using a Synergi 4MU polar-RP 80A column (150 * 2.0 mm, 4MUm) under isocratic conditions and a mobile phase consisting of 0.1% formic acid in water and methanol (80:20, v/v) at a flow rate of 0.2 mL/min. In positive electrospray ionization mode, the protonated precursor and product ion transitions of isoorientin (m/z 449.0 -> 299.1) and of puerarin (the internal standard; m/z 417.1 -> 297.1) were acquired by multiple reaction monitoring. Calibration curves obtained for plasma showed good linearity over the concentration range 1-1000 ng/mL. The lower limit of quantification was 1 ng/mL. Intra- and inter-day precisions were within 8.8% relative standard deviation. Accuracies ranged from 92.1 and 109.7%. The isoorientin stability in rat plasma under typical handling/storage conditions also found to be acceptable. The developed method was applied successfully to a pharmacokinetic study of isoorientin orally administered as the methanol extract of Vaccinium bracteatum Thunb. or administered as pure isoorientin. PMID- 29334126 TI - Methylated PACs are more potent than their parent compounds: A study of aryl hydrocarbon receptor-mediated activity, degradability, and mixture interactions in the H4IIE-luc assay. AB - Twenty-six polycyclic aromatic compounds (PACs; including native polycyclic aromatic hydrocarbons [PAHs], hydroxylated PAHs, alkylated and oxygenated PAHs, and [alkylated] heterocyclic compounds) were investigated for their aryl hydrocarbon receptor (AhR)-mediated potencies in the H4IIE-luc bioassay. Potential degradabilities of PACs were investigated by use of various durations of exposure (24, 48, or 72 h), and various mixtures of PACs including PAHs, alkylated and oxygenated PAHs, and heterocyclic compounds were tested for their joint AhR-mediated potency. Additive behaviors of PACs in mixtures were studied by comparing observed mixture potencies with mixture potencies predicted by use of the concentration addition model. Methylated derivatives were more potent than their parent compounds in the H4IIE-luc assay. A time-dependent decrease in relative potency was observed for all AhR-active compounds, which may be indicative of in vitro biotransformation. Monomethylated compounds seemed to be more rapidly transformed than analogous unsubstituted compounds. In addition, the results showed that the predictive power of the concentration addition model increased with the number of compounds, suggesting additivity in multicomponent mixtures. Due to the greater potency of methylated derivatives and their ubiquitous occurrence, there is a need for further research on the toxicity and mixture behavior of these environmentally and toxicologically relevant compounds. Environ Toxicol Chem 2018;37:1409-1419. (c) 2018 SETAC. PMID- 29334127 TI - Non-enzymatic cross-linking of collagen type II fibrils is tuned via osmolality switch. AB - An important aspect in cartilage ageing is accumulation of advanced glycation end products (AGEs) after exposure to sugars. Advanced glycation results in cross links formation between the collagen fibrils in articular cartilage, hampering their flexibility and making cartilage more brittle. In the current study, we investigate whether collagen cross-linking after exposure to sugars depends on the stretching condition of the collagen fibrils. Healthy equine cartilage specimens were exposed to l-threose sugar and placed in hypo-, iso-, or hyper osmolal conditions that expanded or shrank the tissue and changed the 3D conformation of collagen fibrils. We applied micro-indentation tests, contrast enhanced micro-computed tomography, biochemical measurement of pentosidine cross links, and cartilage surface color analysis to assess the effects of advanced glycation cross-linking under these different conditions. Swelling of extracellular matrix due to hypo-osmolality made cartilage less susceptible to advanced glycation, namely, the increase in effective Young's modulus was approximately 80% lower in hypo-osmolality compared to hyper-osmolality and pentosidine content per collagen was 47% lower. These results indicate that healthy levels of glycosaminoglycans not only keep cartilage stiffness at appropriate levels by swelling and pre-stressed collagen fibrils, but also protect collagen fibrils from adverse effects of advanced glycation. These findings highlight the fact that collagen fibrils and therefore cartilage can be protected from further advanced glycation ("ageing") by maintaining the joint environment at sufficiently low osmolality. Understanding of mechanochemistry of collagen fibrils provided here might evoke potential ageing prohibiting strategies against cartilage deterioration. (c) 2018 The Authors. Journal of Orthopaedic Research Published by Wiley Periodicals, Inc. on behalf of Orthopaedic Research Society. J Orthop Res 36:1929-1936, 2018. PMID- 29334128 TI - Improved liver R2* mapping by pixel-wise curve fitting with adaptive neighborhood regularization. AB - PURPOSE: To improve liver R2* mapping by incorporating adaptive neighborhood regularization into pixel-wise curve fitting. METHODS: Magnetic resonance imaging R2* mapping remains challenging because of the serial images with low signal-to noise ratio. In this study, we proposed to exploit the neighboring pixels as regularization terms and adaptively determine the regularization parameters according to the interpixel signal similarity. The proposed algorithm, called the pixel-wise curve fitting with adaptive neighborhood regularization (PCANR), was compared with the conventional nonlinear least squares (NLS) and nonlocal means filter-based NLS algorithms on simulated, phantom, and in vivo data. RESULTS: Visually, the PCANR algorithm generates R2* maps with significantly reduced noise and well-preserved tiny structures. Quantitatively, the PCANR algorithm produces R2* maps with lower root mean square errors at varying R2* values and signal-to noise-ratio levels compared with the NLS and nonlocal means filter-based NLS algorithms. For the high R2* values under low signal-to-noise-ratio levels, the PCANR algorithm outperforms the NLS and nonlocal means filter-based NLS algorithms in the accuracy and precision, in terms of mean and standard deviation of R2* measurements in selected region of interests, respectively. CONCLUSIONS: The PCANR algorithm can reduce the effect of noise on liver R2* mapping, and the improved measurement precision will benefit the assessment of hepatic iron in clinical practice. Magn Reson Med 80:792-801, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29334129 TI - A mitochondrial-targeted antioxidant improves myofilament Ca2+ sensitivity during prolonged low frequency force depression at low PO2. AB - KEY POINTS: Skeletal muscle contractile activity is associated with an enhanced reactive oxygen species (ROS) generation. At very low PO2, ROS generation by mitochondria can be elevated in intact cells. An elevated intracellular oxidant activity may affect muscle force development and recovery from fatigue. We treated intact single muscle fibres with a mitochondrial antioxidant and stimulated the fibres to contract at a low extracellular PO2 that is similar to the intracellular PO2 that is observed during moderate to intense exercise in vivo. The mitochondrial antioxidant prevented a sustained decrease in the myofibrillar Ca2+ sensitivity and improved muscle submaximal force development after fatigue at low extracellular PO2. ABSTRACT: Skeletal muscle can develop a prolonged low frequency-stimulation force depression (PLFFD) following fatigue inducing contractions. Increased levels of reactive oxygen species (ROS) have been implicated in the development of PLFFD. During exercise the skeletal muscle intracellular PO2 decreases to relatively low levels, and can be further decreased when there is an impairment in O2 diffusion or availability, such as in certain chronic diseases and during exercise at high altitude. Since ROS generation by mitochondria is elevated at very low PO2 in cells, we tested the hypothesis that treatment of muscle fibres with a mitochondrial-targeted antioxidant at a very low, near hypoxic, PO2 can attenuate PLFFD. We treated intact single fibres from mice with the mitochondrial-specific antioxidant SS31, and measured force development and intracellular [Ca2+ ] 30 min after fatigue at an extracellular PO2 of ~5 Torr. After 30 min following the end of the fatiguing contractions, fibres treated with SS31 showed significantly less impairment in force development compared to untreated fibres at submaximal frequencies of stimulation. The cytosolic peak [Ca2+ ] transients (peak [Ca2+ ]c ) were equally decreased in both groups compared to pre-fatigue values. The combined force and peak [Ca2+ ]c data demonstrated that myofibrillar Ca2+ sensitivity was diminished in the untreated fibres 30 min after fatigue compared to pre-fatigue values, but Ca2+ sensitivity was unaltered in the SS31 treated fibres. These results demonstrate that at a very low PO2, treatment of skeletal muscle fibres with a mitochondrial antioxidant prevents a decrease in the myofibrillar Ca2+ sensitivity, which alleviates the fatigue induced PLFFD. PMID- 29334130 TI - Radiofrequency ablation combined with multiple biliary metal stent placement using short-type single-balloon endoscope in patients with surgically altered anatomy. PMID- 29334131 TI - A bayesian method for accelerated magnetic resonance elastography of the liver. AB - PURPOSE: Magnetic resonance elastography is a noninvasive tool for quantifying soft tissue stiffness. Magnetic resonance elastography has been adopted as a clinical method for staging liver fibrosis. However, the application of liver magnetic resonance elastography requires multiple lengthy breath-holds. We propose a new data acquisition and processing method to reduce magnetic resonance elastography scan time. METHODS: A Bayesian image reconstruction method that uses transform sparsity and magnitude consistency across different phase offsets to recover images from highly undersampled data is proposed. The method is validated using retrospectively down-sampled phantom data and prospectively down-sampled in vivo data (N = 86). RESULTS: The proposed technique allows accurate quantification of mean liver stiffness up to an acceleration factor of R = 6, enabling acquisition of a slice in 4.3 s. Bland-Altman analysis indicates that the proposed technique (R = 6) has a bias of -0.04 kPa and limits of agreement of -0.36 to + 0.28 kPa when compared with traditional generalized autocalibrating partial parallel acquisition reconstruction (R = 1.4). CONCLUSION: By exploiting transform sparsity and magnitude consistency, accurate quantification of mean stiffness in the liver can be obtained at an acceleration rate of up to R = 6. This potentially enables the collection of three to four liver slices, as per clinical protocol, within a single breath-hold. Magn Reson Med 80:1178-1188, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29334132 TI - Oxybutynin 3% gel for the treatment of primary focal hyperhidrosis in adolescents and young adults. AB - BACKGROUND/OBJECTIVES: There are no reliably effective, well-tolerated topical agents for the treatment of hyperhidrosis. We sought to evaluate the efficacy and tolerability of oxybutynin 3% gel in adolescents and young adults with primary focal hyperhidrosis. METHODS: Patients with severe axillary hyperhidrosis were treated with topical oxybutynin 3% gel for 4 weeks. Response to treatment was assessed by calculating change in Hyperhidrosis Disease Severity Score from baseline to weeks 1 and 4. Change in health-related quality of life was assessed using the Children's Dermatology Life Quality Index or the Dermatology Life Quality Index. Adverse effects were evaluated using patient diaries, investigator global review, and physical examination. RESULTS: Of 10 patients aged 13-24 enrolled, seven completed the study. Of those who completed the study, four (57.1%) reported reduction in axillary Hyperhidrosis Disease Severity Score at week 1 and all seven (100%) at week 4. Six patients (85.7%) reported reduction in Children's Dermatology Life Quality Index or Dermatology Life Quality Index score. Anticholinergic adverse effects were infrequent. The majority of treatment related adverse events were mild to moderate in severity. One patient experienced a severe adverse event. CONCLUSION: Oxybutynin 3% gel reduced hyperhidrosis severity and improved health-related quality of life in this small pilot study. Safety and efficacy should be further evaluated in a large, prospective, placebo controlled study. PMID- 29334133 TI - Hierarchical Porous Nanosheets Constructed by Graphene-Coated, Interconnected TiO2 Nanoparticles for Ultrafast Sodium Storage. AB - Sodium-ion batteries (SIBs) are considered promising next-generation energy storage devices. However, a lack of appropriate high-performance anode materials has prevented further improvements. Here, a hierarchical porous hybrid nanosheet composed of interconnected uniform TiO2 nanoparticles and nitrogen-doped graphene layer networks (TiO2 @NFG HPHNSs) that are synthesized using dual-functional C3 N4 nanosheets as both the self-sacrificing template and hybrid carbon source is reported. These HPHNSs deliver high reversible capacities of 146 mA h g-1 at 5 C for 8000 cycles, 129 mA h g-1 at 10 C for 20 000 cycles, and 116 mA h g-1 at 20 C for 10 000 cycles, as well as an ultrahigh rate capability up to 60 C with a capacity of 101 mA h g-1 . These results demonstrate the longest cyclabilities and best rate capability ever reported for TiO2 -based anode materials for SIBs. The unprecedented sodium storage performance of the TiO2 @NFG HPHNSs is due to their unique composition and hierarchical porous 2D structure. PMID- 29334134 TI - A comprehensive next-generation sequencing assay for the diagnosis of epidermolysis bullosa. AB - BACKGROUND: Historically, diagnosis of epidermolysis bullosa has required skin biopsies for electron microscopy, direct immunofluorescence to determine which gene(s) to choose for genetic testing, or both. METHODS: To avoid these invasive tests, we developed a high-throughput next-generation sequencing (NGS)-based diagnostic assay called EBSEQ that allows simultaneous detection of mutations in 21 genes with known roles in epidermolysis bullosa pathogenicity. Mutations are confirmed with traditional Sanger sequencing. RESULTS: We present our EBSEQ assay and preliminary studies on the first 43 subjects tested. We identified 11 cases of epidermolysis bullosa simplex, five cases of junctional epidermolysis bullosa, 11 cases of dominant dystrophic epidermolysis bullosa, 15 cases of recessive dystrophic epidermolysis bullosa, and one case that remains without diagnosis. We also found an additional 52 variants of uncertain clinical significance in 17 of the 21 epidermolysis bullosa-associated genes tested. Three of the variants of uncertain clinical significance were also found in three other patients, for a total of 49 unique variants of uncertain clinical significance. We found the clinical sensitivity of the assay to be 75% to 98% and the analytical sensitivity to be 99% in identifying base substitutions and small deletions and duplications. Turnaround time was 3 to 6 weeks. CONCLUSIONS: EBSEQ is a sensitive, relatively rapid, minimally invasive, comprehensive genetic assay for the diagnosis of epidermolysis bullosa. PMID- 29334135 TI - Liquid Letters. AB - Using the interfacial jamming of cellulose nanocrystal (CNC) surfactants, a new concept, termed all-liquid molding, is introduced to produce all-liquid objects that retain the shape and details of the mold with high fidelity, yet remain all liquid and are responsive to external stimuli. This simple process, where the viscosity of the CNC dispersion can range from that of water to a crosslinked gel, opens tremendous opportunities for encapsulation, delivery systems, and unique microfluidic devices. The process described is generally applicable to any functionalized nanoparticles dispersed in one liquid and polymer ligands having complementary functionality dissolved in a second immiscible liquid. Such sculpted liquids retain all the characteristics of the liquids but retain shape indefinitely, very much like a solid, and provide a new platform for next generation soft materials. PMID- 29334136 TI - Bayesian network meta-analysis: Efficacy of air insufflation, CO2 insufflation, water exchange, and water immersion in colonoscopy. AB - BACKGROUND AND AIM: Colonoscopy is an excellent screening tool for colorectal cancer. There are four colonoscopy techniques: air insufflation, CO2 insufflation, water exchange, and water immersion. Some studies reported that the latter three methods are better than the criterion standard (air insufflation), whereas some studies did not. In order to evaluate the efficacy of the four colonoscopy techniques, a network meta-analysis was carried out. METHODS: We searched randomized controlled trials (RCT) published up to September 2017 from PubMed, Embase, Cochrane library, and Web of Science. Studies referencing the comparison between at least two of air insufflation, CO2 insufflation, water exchange, and water immersion were selected. Primary outcomes included pain score during insertion, polyp detection rate, and adenoma detection rate, and secondary outcomes included cecal intubation time and cecal intubation rate. Mean differences or odds ratios and their corresponding 95% credible intervals were pooled with Bayesian modeling. RESULTS: Forty RCT with 13 734 patients were included in this network meta-analysis. Our analysis showed that air insufflation had the highest pain score (surface under the cumulative ranking curve [SUCRA]: 98.8%) and the lowest detection rate of adenoma (SUCRA: 21.3%) and polyp (SUCRA: 16.8%). Water exchange had the lowest pain score (SUCRA: 1.1%) and highest detection rate of adenoma (SUCRA: 96.0%) and polyp (SUCRA: 98.9%), although it led to the longest cecal intubation time (SUCRA: 86.9%). CONCLUSIONS: Air insufflation might be the most unsatisfactory colonoscopy. Meanwhile, water exchange might be the most efficient colonoscopy. PMID- 29334137 TI - Calcium phosphate precipitation in experimental gaps between fluoride-containing fast-setting calcium silicate cement and dentin. AB - A novel fast-setting calcium silicate cement containing fluoride (novel-CSC) has been developed for applications in tooth crowns. The aim of this study was to assess the ability of the novel-CSC to close the experimental gaps at the dentin cement interface. The novel-CSC was tested against Vitrebond and GC Fuji II LC. Experimental gaps of 50 or 300 MUm width were created between the materials and dentin. Specimens with the 300-MUm-wide gap were immersed in phosphate-buffered saline and the closed gap area was measured during 96 h. All specimens with 50 or 300 MUm gap width were analyzed by scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (SEM/EDX) to assess the morphology and chemical composition of the precipitates after 96 h immersion in phosphate buffered saline. High-resolution micro-computed tomography (MUCT) was used to evaluate the integrity and continuity of the precipitiates after 96 h and 180 d. In all novel-CSC samples, precipitates closed the gap area completely after 96 h. The SEM/EDX revealed that the globular precipitates closing the gap area were mainly composed of calcium and phosphorus. After 180 d, MUCT indicated thicker precipitates compared with initial precipitates only in the novel-CSC group, whereas no precipitates were observed in resin-modified glass ionomers. Novel-CSC promoted continuous precipitation of calcium phosphate, including apatite, and closed the experimental gaps. PMID- 29334138 TI - Moving knife tip on the thoracic aorta: High-risk submucosal tunneling endoscopic resection procedure for a puzzling submucosal mass in the esophagus. PMID- 29334139 TI - Interleaved susceptibility-weighted and FLAIR MRI for imaging lesion-penetrating veins in multiple sclerosis. AB - PURPOSE: To simultaneously image brain lesions and veins in multiple sclerosis. METHODS: An interleaved sequence was developed to simultaneously acquire 3 dimensional T2*-weighted (or susceptibility-weighted (SW)) and fluid-attenuated inversion recovery (FLAIR) images on a 3T MRI system. The pulse sequence parameters were calculated to minimize signal perturbation from steady state while maintaining acceptable image contrast and scan time. Fifteen multiple sclerosis patients were enrolled in this prospective study and underwent a standard multiple sclerosis imaging protocol. In addition, SW and FLAIR images were acquired separately and also in an interleaved manner. The SW and FLAIR images were combined into one image to visualize lesions and penetrating veins. The contrast ratios between white matter lesions and penetrating veins were compared between the interleaved sequence and the individual noninterleaved acquisitions. RESULTS: Interleaved scanning of the FLAIR and the SW pulse sequences was achieved, producing aligned images, and with similar image contrast as in the noninterleaved images. A total of 1076 lesions were identified in all patients on the combined SW-FLAIR image, of which 968 lesions (90%) had visible penetrating veins. Lesion-to-vein contrast ratio was 32.7 +/- 17.9 (mean +/- standard deviation) for the interleaved sequence compared with 28.1 +/- 13.7 using the separate acquisitions (P < 0.001). CONCLUSION: The feasibility of interleaved acquisition of SW and FLAIR images was demonstrated. This sequence provides self-registered images and facilitates the visualization of veins in brain lesions. Magn Reson Med 80:1132-1137, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29334140 TI - Slit Tubes for Semisoft Pneumatic Actuators. AB - This article describes a new principle for designing soft or 'semisoft' pneumatic actuators: SLiT (for SLit-in-Tube) actuators. Inflating an elastomeric balloon, when enclosed by an external shell (a material with higher Young's modulus) containing slits of different directions and lengths, produces a variety of motions, including bending, twisting, contraction, and elongation. The requisite pressure for actuation depends on the length of the slits, and this dependence allows sequential actuation by controlling the applied pressure. Different actuators can also be controlled using external "sliders" that act as reprogrammable "on-off" switches. A pneumatic arm and a walker constructed from SLiT actuators demonstrate their ease of fabrication and the range of motions they can achieve. PMID- 29334141 TI - Characterization of macromolecular baseline of human brain using metabolite cycled semi-LASER at 9.4T. AB - PURPOSE: Macromolecular resonances (MM) arise mainly from cytosolic proteins and overlap with metabolites, influencing metabolite quantification. Macromolecules can serve as valuable biomarkers for diseases and pathologies. The objectives of this study were to characterize MM at 9.4T in the human brain (occipital and left parietal lobe) and to describe the RF coil setup used for MM acquisition in the two regions. METHODS: An adiabatic inversion pulse was optimised for metabolite nulling at 9.4T using double inversion recovery and was combined for the first time with metabolite cycled (MC) semi-LASER and appropriate coil configuration. MM spectra (seven volunteers) from two brain locations were averaged and smoothed creating MM templates, which were then parametrized using simulated Voigt-shaped lines within LCModel. Quantification was performed on individual data sets, including corrections for different tissue composition and the T1 and T2 relaxation of water. RESULTS: Our coil configuration method resulted in efficient B1+ (>30 T/?kW) for both brain regions. The 15 MM components were detected and quantified in MM baselines of the two brain areas. No significant differences in concentration levels of MM between different regions were found. Two new MM peaks were reported (M7 & M8). CONCLUSION: Double inversion, which was combined with MC semi-LASER, enabled the acquisition of high spectral resolution MM spectra for both brain regions at 9.4T. The 15 MM components were detected and quantified. Two new MM peaks were reported for the first time (M7 & M8) and preliminarily assigned to beta-methylene protons of aspartyl-groups. Magn Reson Med 80:462-473, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29334142 TI - Severe ectropion in lamellar ichthyosis managed medically with oral acitretin. AB - Congenital ectropion is commonly associated with lamellar ichthyosis. Severe eyelid ectropion may cause corneal exposure, keratopathy, and permanent corneal scarring. We report a neonate with severe, bilateral, congenital ectropion and eclabium managed using oral retinoids. Both corneas were protected with topical antibiotics and lubricating eyedrops and eye ointments. At 12-month follow-up, the child was doing well, with no ectropion or corneal opacity. PMID- 29334143 TI - Childhood alopecia areata-Data from the National Alopecia Areata Registry. AB - BACKGROUND/OBJECTIVES: Alopecia areata may occur at any age and is the third-most common dermatosis in children. The objective of this study was to investigate the clinical and epidemiologic features of children and adolescents with alopecia areata based on the data of the National Alopecia Areata registry on children and adolescents. METHODS: Two thousand two hundred eighteen children and adolescents with alopecia areata self-enrolled in the National Alopecia Areata Registry and completed a web-based, self-administered, short-intake screening questionnaire (first tier). In the second tier, 643 patients participated in a clinical examination and completed a long-form questionnaire. RESULTS: Mean age of onset was 5.9 +/- 4.1 years. With a female to male ratio of 1.5:1, alopecia areata was more prevalent in girls, but boys were significantly more likely to have a severe type (P = .009). One-fourth of all children had a positive family history, with 8% having more than three affected relatives. The disease most commonly associated with alopecia areata was atopic dermatitis (32.7%). CONCLUSION: Childhood alopecia areata is more prevalent in girls than in boys, but boys have more extensive alopecia areata. Despite the low prevalence, congenital alopecia areata is an important differential diagnosis for neonatal hair loss. Alopecia areata runs in families, suggesting an underlying genetic background. One-quarter of the children reported at least one affected first-degree relative; 8% had more than three affected relatives. PMID- 29334144 TI - Acute gastrointestinal bleeding from appendiceal diverticulitis diagnosed preoperatively by combined short-interval computed tomography and colonoscopy: A case report. PMID- 29334145 TI - Colloidal Cobalt Phosphide Nanocrystals as Trifunctional Electrocatalysts for Overall Water Splitting Powered by a Zinc-Air Battery. AB - Highly efficient and stable electrocatalysts, particularly those that are capable of multifunctionality in the same electrolyte, are in high demand for the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). In this work, highly monodisperse CoP and Co2 P nanocrystals (NCs) are synthesized using a robust solution-phase method. The highly exposed (211) crystal plane and abundant surface phosphide atoms make the CoP NCs efficient catalysts toward ORR and HER, while metal-rich Co2 P NCs show higher OER performance owing to easier formation of plentiful Co2 P@COOH heterojunctions. Density functional theory calculation results indicate that the desorption of OH* from cobalt sites is the rate-limiting step for both CoP and Co2 P in ORR and that the high content of phosphide can lower the reaction barrier. A water electrolyzer constructed with a CoP NC cathode and a Co2 P NC anode can achieve a current density of 10 mA cm-2 at 1.56 V, comparable even to the noble metal-based Pt/C and RuO2 /C pair. Furthermore, the CoP NCs are employed as an air cathode in a primary zinc-air battery, exhibiting a high power density of 62 mW cm-2 and good stability. PMID- 29334146 TI - Self-Assembled Ag-MXA Superclusters with Structure-Dependent Mechanical Properties. AB - The low elastic modulus and time-consuming formation process represent the major challenges that impede the penetration of nanoparticle superstructures into daily life applications. As observed in the molecular or atomic crystals, more effective interactions between adjacent nanoparticles would introduce beneficial features to assemblies enabling optimized mechanical properties. Here, a straightforward synthetic strategy is showed that allows fast and scalable fabrication of 2D Ag-mercaptoalkyl acid superclusters of either hexagonal or lamellar topology. Remarkably, these ordered superstructures exhibit a structure dependent elastic modulus which is subject to the tether length of straight-chain mercaptoalkyl acids or the ratio between silver and tether molecules. These superclusters are plastic and moldable against arbitrarily shaped masters of macroscopic dimensions, thereby opening a wealth of possibilities to develop more nanocrystals with practically useful nanoscopic properties. PMID- 29334147 TI - Uniform Lithium Nucleation/Growth Induced by Lightweight Nitrogen-Doped Graphitic Carbon Foams for High-Performance Lithium Metal Anodes. AB - The lithium metal anode has attracted soaring attention as an ideal battery anode. Unfortunately, nonuniform Li nucleation results in uncontrollable growth of dendritic Li, which incurs serious safety issues and poor electrochemical performance, hindering its practical applications. Herein, this study shows that uniform Li nucleation/growth can be induced by an ultralight 3D current collector consisting of in situ nitrogen-doped graphitic carbon foams (NGCFs) to realize suppressing dendritic Li growth at the nucleating stage. The N-containing functional groups guide homogenous growth of Li nucleus nanoparticles and the initial Li nucleus seed layer regulates the following well-distributed Li growth. Benefiting from such favorable Li growth behavior, superior electrochemical performance can be achieved as evidenced by the high Coulombic efficiency (~99.6% for 300 cycles), large capacity (10 mA h cm-2 , 3140 mA h g-1NGCF-Li ), and ultralong lifespan (>1200 h) together with low overpotential (<25 mV at 3 mA cm-2 ); even under a high current density up to 10 mA cm-2 , it still displays low overpotential of 62 mV. PMID- 29334149 TI - Evidence based practice readiness: A concept analysis. AB - AIM: To analyse and define the concept "evidence based practice readiness" in nurses. BACKGROUND: Evidence based practice readiness is a term commonly used in health literature, but without a clear understanding of what readiness means. Concept analysis is needed to define the meaning of evidence based practice readiness. METHOD: A concept analysis was conducted using Walker and Avant's method to clarify the defining attributes of evidence based practice readiness as well as antecedents and consequences. A Boolean search of PubMed and Cumulative Index for Nursing and Allied Health Literature was conducted and limited to those published after the year 2000. Eleven articles met the inclusion criteria for this analysis. RESULTS: Evidence based practice readiness incorporates personal and organisational readiness. Antecedents include the ability to recognize the need for evidence based practice, ability to access and interpret evidence based practice, and a supportive environment. CONCLUSION: The concept analysis demonstrates the complexity of the concept and its implications for nursing practice. The four pillars of evidence based practice readiness: nursing, training, equipping and leadership support are necessary to achieve evidence based practice readiness. IMPLICATIONS FOR NURSING MANAGEMENT: Nurse managers are in the position to address all elements of evidence based practice readiness. Creating an environment that fosters evidence based practice can improve patient outcomes, decreased health care cost, increase nurses' job satisfaction and decrease nursing turnover. PMID- 29334148 TI - Self-Powered Si/CdS Flexible Photodetector with Broadband Response from 325 to 1550 nm Based on Pyro-phototronic Effect: An Approach for Photosensing below Bandgap Energy. AB - Cadmium sulfide (CdS) has received widespread attention as the building block of optoelectronic devices due to its extraordinary optoelectronic properties, low work function, and excellent thermal and chemical stability. Here, a self-powered flexible photodetector (PD) based on p-Si/n-CdS nanowires heterostructure is fabricated. By introducing the pyro-phototronic effect derived from wurtzite structured CdS, the self-powered PD shows a broadband response range, even beyond the bandgap limitation, from UV (325 nm) to near infrared (1550 nm) under zero bias with fast response speed. The light-induced pyroelectric potential is utilized to modulate the optoelectronic processes and thus improve the photoresponse performance. Lasers with different wavelengths have different effects on the self-powered PDs and corresponding working mechanisms are carefully investigated. Upon 325 nm laser illumination, the rise time and fall time of the self-powered PD are 245 and 277 us, respectively, which are faster than those of most previously reported CdS-based nanostructure PDs. Meanwhile, the photoresponsivity R and specific detectivity D* regarding to the relative peak-to-peak current are both enhanced by 67.8 times, compared with those only based on the photovoltaic effect-induced photocurrent. The self-powered flexible PD with fast speed, stable, and broadband response is expected to have extensive applications in various environments. PMID- 29334150 TI - A General Method for the Chemical Synthesis of Large-Scale, Seamless Transition Metal Dichalcogenide Electronics. AB - The capability to directly build atomically thin transition metal dichalcogenide (TMD) devices by chemical synthesis offers important opportunities to achieve large-scale electronics and optoelectronics with seamless interfaces. Here, a general approach for the chemical synthesis of a variety of TMD (e.g., MoS2 , WS2 , and MoSe2 ) device arrays over large areas is reported. During chemical vapor deposition, semiconducting TMD channels and metallic TMD/carbon nanotube (CNT) hybrid electrodes are simultaneously formed on CNT-patterned substrate, and then coalesce into seamless devices. Chemically synthesized TMD devices exhibit attractive electrical and mechanical properties. It is demonstrated that chemically synthesized MoS2 -MoS2 /CNT devices have Ohmic contacts between MoS2 /CNT hybrid electrodes and MoS2 channels. In addition, MoS2 -MoS2 /CNT devices show greatly enhanced mechanical stability and photoresponsivity compared with conventional gold-contacted devices, which makes them suitable for flexible optoelectronics. Accordingly, a highly flexible pixel array based on chemically synthesized MoS2 -MoS2 /CNT photodetectors is applied for image sensing. PMID- 29334151 TI - Fused Tris(thienothiophene)-Based Electron Acceptor with Strong Near-Infrared Absorption for High-Performance As-Cast Solar Cells. AB - A fused tris(thienothiophene) (3TT) building block is designed and synthesized with strong electron-donating and molecular packing properties, where three thienothiophene units are condensed with two cyclopentadienyl rings. Based on 3TT, a fused octacylic electron acceptor (FOIC) is designed and synthesized, using strong electron-withdrawing 2-(5/6-fluoro-3-oxo-2,3-dihydro-1H-inden-1 ylidene)-malononitrile as end groups. FOIC exhibits absorption in 600-950 nm region peaked at 836 nm with extinction coefficient of up to 2 * 105 m-1 cm-1 , low bandgap of 1.32 eV, and high electron mobility of 1.2 * 10-3 cm2 V-1 s-1 . Compared with its counterpart ITIC3 based on indacenothienothiophene core, FOIC exhibits significantly upshifted highest occupied molecular orbital level, slightly downshifted lowest unoccupied molecular orbital level, significantly redshifted absorption, and higher mobility. The as-cast organic solar cells (OSCs) based on blends of PTB7-Th donor and FOIC acceptor without additional treatments exhibit power conversion efficiencies (PCEs) as high as 12.0%, which is much higher than that of PTB7-Th: ITIC3 (8.09%). The as-cast semitransparent OSCs based on the same blends show PCEs of up to 10.3% with an average visible transmittance of 37.4%. PMID- 29334152 TI - Dynamic Coordination of Eu-Iminodiacetate to Control Fluorochromic Response of Polymer Hydrogels to Multistimuli. AB - New fluorochromic materials that reversibly change their emission properties in response to their environment are of interest for the development of sensors and light-emitting materials. A new design of Eu-containing polymer hydrogels showing fast self-healing and tunable fluorochromic properties in response to five different stimuli, including pH, temperature, metal ions, sonication, and force, is reported. The polymer hydrogels are fabricated using Eu-iminodiacetate (IDA) coordination in a hydrophilic poly(N,N-dimethylacrylamide) matrix. Dynamic metal ligand coordination allows reversible formation and disruption of hydrogel networks under various stimuli which makes hydrogels self-healable and injectable. Such hydrogels show interesting switchable ON/OFF luminescence along with the sol-gel transition through the reversible formation and dissociation of Eu-IDA complexes upon various stimuli. It is demonstrated that Eu-containing hydrogels display fast and reversible mechanochromic response as well in hydrogels having interpenetrating polymer network. Those multistimuli responsive fluorochromic hydrogels illustrate a new pathway to make smart optical materials, particularly for biological sensors where multistimuli response is required. PMID- 29334153 TI - Heterobimetallic Complexes for Theranostic Applications. AB - The design of more efficient anticancer drugs requires a deeper understanding of their biodistribution and mechanism of action. Cell imaging agents could help to gain insight into biological processes and, consequently, the best strategy for attaining suitable scaffolds in which both biological and imaging properties are maximized. A new concept arises in this field that is the combination of two metal fragments as collaborative partners to provide the precise emissive properties to visualize the cell as well as the optimum cytotoxic activity to build more potent and selective chemotherapeutic agents. PMID- 29334154 TI - Nano Titanium Monoxide Crystals and Unusual Superconductivity at 11 K. AB - Nano TiO2 is investigated intensely due to extraordinary photoelectric performances in photocatalysis, new-type solar cells, etc., but only very few synthesis and physical properties have been reported on nanostructured TiO or other low valent titanium-containing oxides. Here, a core-shell nanoparticle made of TiO core covered with a ~5 nm shell of amorphous TiO1+x is newly constructed via a controllable reduction method to synthesize nano TiO core and subsequent soft oxidation to form the shell (TiO1+x ). The physical properties measurements of electrical transport and magnetism indicate these TiO@TiO1+x nanocrystals are a type-II superconductor of a recorded Tconset = 11 K in the binary Ti-O system. This unusual superconductivity could be attributed to the interfacial effect due to the nearly linear gradient of O/Ti ratio across the outer amorphous layer. This novel synthetic method and enhanced superconductivity could open up possibilities in interface superconductivity of nanostructured composites with well-controlled interfaces. PMID- 29334155 TI - Response selection codes in neurophysiological data predict conjoint effects of controlled and automatic processes during response inhibition. AB - The inhibition of prepotent responses is a requirement for goal-directed behavior and several factors determine corresponding successful response inhibition processes. One factor relates to the degree of automaticity of pre-potent response tendencies and another factor relates to the degree of cognitive control that is exerted during response inhibition. However, both factors can conjointly modulate inhibitory control. Cognitive theoretical concepts suggest that codings of stimulus-response translations may underlie such conjoint effects. Yet, it is unclear in how far such specific codes, as assumed in cognitive psychological concepts, are evident in neurophysiological processes and whether there are specific functional neuroanatomical structures associated with the processing of such codes. Applying a temporal decomposition method of EEG data in combination with source localization methods we show that there are different, intermingled codes (i.e., "stimulus codes" and "response selection codes") at the neurophysiological level during conjoint effects of "automatic" and "controlled" processes in response inhibition. Importantly, only "response selection codes" predict behavioral performance, and are subject to conjoint modulations by "automatic" and "controlled" processes. These modulations are associated with inferior and superior parietal areas (BA40/BA7), possibly reflecting an updating of internal representations when information is complex and probably difficult to categorize, but essential for behavioral control. Codes proposed by cognitive, psychological concepts seem to have a neurophysiological analogue that fits into current views on functions of inferior and superior parietal regions. PMID- 29334156 TI - The retinal ganglion cell layer predicts normal-appearing white matter tract integrity in multiple sclerosis: A combined diffusion tensor imaging and optical coherence tomography approach. AB - We investigated the relationship between retinal layers and normal-appearing white matter (WM) integrity in the brain of patients with relapsing-remitting multiple sclerosis (MS), using a combined diffusion tensor imaging and high resolution optical coherence tomography approach. Fifty patients and 62 controls were recruited. The patients were divided into two groups according to presence (n = 18) or absence (n = 32) of optic neuritis. Diffusion tensor data were analyzed with a voxel-wise whole brain analysis of diffusion metrics in WM with tract-based spatial statistics. Thickness measurements were obtained for each individual retinal layer. Partial correlation and multivariate regression analyses were performed, assessing the association between individual retinal layers and diffusion metrics across all groups. Region-based analysis was performed, by focusing on tracts associated with the visual system. Receiver operating characteristic (ROC) curves were computed to compare the biomarker potential for the diagnosis of MS, using the thickness of each retinal layer and diffusion metrics. In patients without optic neuritis, both ganglion cell layer (GCL) and inner plexiform layer thickness correlated with the diffusion metrics within and outside the visual system. GCL thickness was a significant predictor of diffusion metrics in the whole WM skeleton, unlike other layers. No association was observed for either controls or patients with a history of optic neuritis. ROC analysis showed that the biomarker potential for the diagnosis of MS based on the GCL was high when compared to other layers. We conclude that GCL integrity is a predictor of whole-brain WM disruption in MS patients without optic neuritis. PMID- 29334157 TI - Elevated sympathetic vasomotor outflow in response to increased inspiratory muscle activity during exercise is less in young women compared with men. AB - NEW FINDINGS: What is the central question of this study? Premenopausal women have an attenuated inspiratory muscle metaboreflex-induced increase in arterial blood pressure compared with men. It is unclear whether sympathetic vasomotor outflow during dynamic exercise with increased inspiratory muscle activation is less in young women than in men. What is the main finding and its importance? The magnitude of increased sympathetic vasomotor outflow during leg cycling with inspiratory resistance was smaller in women than in men. Less sympathetic vasomotor outflow with inspiratory muscle metaboreflex activation could be one of the mechanisms for the attenuated inspiratory muscle-induced metaboreflex during exercise in young women. ABSTRACT: We compared changes in muscle sympathetic nerve activity (MSNA) and cardiovascular variables during leg cycle exercise with increased inspiratory muscle resistance in men and women. We hypothesized that sympathetic vasomotor outflow during exercise with increased inspiratory resistance would be attenuated in young women compared with age-matched men. Eight women and seven men completed the study. The subjects performed two 10 min exercise bouts at 40% peak oxygen uptake using a cycle ergometer in a semirecumbent position [spontaneous breathing for 5 min and voluntary hyperventilation with or without inspiratory resistive breathing for 5 min (breathing frequency 50 breaths min-1 with a 50% duty cycle; inspiratory resistance 30% of maximal inspiratory pressure)]. Mean arterial blood pressure (MAP) was acquired using finger photoplethysmography. The MSNA was recorded via microneurography of the right median nerve at the cubital fossa. During leg cycle exercise with inspiratory resistive breathing, MSNA burst frequency was increased, accompanied by an increase in MAP in both men and women. Women, compared with men, had less of an increase in MAP (women +22.8 +/- 12.3 mmHg versus men +32.2 +/- 5.4 mmHg; P < 0.05) and MSNA burst frequency (women +9.6 +/- 2.9 bursts min-1 versus men +14.6 +/- 6.4 bursts min-1 ; P < 0.05). These results suggest that the attenuated inspiratory muscle-induced metaboreflex during exercise in young women is attributable, in part, to a lesser sympathetic vasomotor outflow compared with men. PMID- 29334158 TI - Growth of liver allografts over time in pediatric transplant recipients. AB - The liver's capacity to grow in response to metabolic need is well known. However, long-term growth of liver allografts in pediatric recipients has not been characterized. A retrospective review of pediatric recipients at a single institution identified patients who had cross-sectional imaging at 1, 5, and 10 years post-transplant. Using volumetric calculations, liver allograft size was calculated and percent SLV were compared across the different time points; 18 patients ranging from 0.3 to 17.7 years old were identified that had imaging at 2 or more time points. Measured liver volumes increased by 59% after 5 years and 170% after 10 years. The measured liver volumes compared to calculated %SLV for these patients were 123 +/- 37%, 97 +/- 19%, and 118 +/- 27% at 1, 5, and 10 years after transplant, respectively. Our data suggest that liver allografts in pediatric recipients increase along with overall growth, and reach SLVs for height and weight by 5 years post-transplantation. Additionally, as pediatric recipients grow, the livers appear to maintain appropriate SLV. PMID- 29334159 TI - A Gold(III) Pincer Ligand Scaffold for the Synthesis of Binuclear and Bioconjugated Complexes: Synthesis and Anticancer Potential. AB - Cyclometalated (C^N^C)AuIII complexes bearing functionalized N-heterocyclic carbene (NHC) ligands provide a high-yielding, modular route to bioconjugated and binuclear complexes. This methodology has been applied to the synthesis of bioconjugated complexes presenting biotin and 17alpha-ethynylestradiol vectors, as well as to the synthesis of bimetallic AuIII /AuI complexes. The in vitro antiproliferative activities of these compounds against various cancer cells lines depend on the linker length, with the longer linker being the most potent. The estradiol conjugate AuC6 Estra proved to be more toxic against the estrogen receptor positive (ER+) cancer cells than against the ER- cancer cells and non cancer cells. The bimetallic complex AuC6 Au was more selective for breast cancer cells with respect to a healthy cell standard than the monometallic complex AuNHC. The metal uptake study on cells expressing or not biotin and estrogen receptors revealed an improved and targeted delivery of gold for both the bioconjugated complexes AuC6 Biot and AuC6 Estra compared to the non-vectorised analogue AuNHC. The investigations of the interaction of the bioconjugates and bimetallic complexes with human telomeric G-quadruplex DNA using FRET-melting techniques revealed a reduced ability to stabilize this DNA structure with respect to the non-vectorised analogue AuNHC. PMID- 29334160 TI - Fine-Tuning of Molecular Packing and Energy Level through Methyl Substitution Enabling Excellent Small Molecule Acceptors for Nonfullerene Polymer Solar Cells with Efficiency up to 12.54. AB - A novel small molecule acceptor MeIC with a methylated end-capping group is developed. Compared to unmethylated counterparts (ITCPTC), MeIC exhibits a higher lowest unoccupied molecular orbital (LUMO) level value, tighter molecular packing, better crystallites quality, and stronger absorption in the range of 520 740 nm. The MeIC-based polymer solar cells (PSCs) with J71 as donor, achieve high power conversion efficiency (PCE), up to 12.54% with a short-circuit current (JSC ) of 18.41 mA cm-2 , significantly higher than that of the device based on J71:ITCPTC (11.63% with a JSC of 17.52 mA cm-2 ). The higher JSC of the PSC based on J71:MeIC can be attributed to more balanced MUh /MUe , higher charge dissociation and charge collection efficiency, better molecular packing, and more proper phase separation features as indicated by grazing incident X-ray diffraction and resonant soft X-ray scattering results. It is worth mentioning that the as-cast PSCs based on MeIC also yield a high PCE of 11.26%, which is among the highest value for the as-cast nonfullerene PSCs so far. Such a small modification that leads to so significant an improvement of the photovoltaic performance is a quite exciting finding, shining a light on the molecular design of the nonfullerene acceptors. PMID- 29334161 TI - The Role of Neurosonology in the Diagnosis and Management of Patients with Carotid Artery Disease: A Review. AB - Carotid artery disease (CAD) is a common cause of ischemic stroke with high rates of recurrence. Carotid endarterectomy (CEA) or carotid artery stenting (CAS) are highly recommended for the secondary prevention of symptomatic CAD during the first 14 days following the index event of transient ischemic attack or minor stroke. CEA or CAS may also be offered in selected cases with severe asymptomatic stenosis. Herein, we review the utility of neurosonology in the diagnosis and pre /peri-interventional assessment of CAD patients who undergo carotid revascularization procedures. Carotid ultrasound may provide invaluable information on plaque echogenicity, ulceration, risk of thrombosis, and rupture. Transcranial Doppler or transcranial color-coded sonography may further assist by mapping collateral circulation, evaluating the impairment of vasomotor reactivity, detecting microembolization, or reperfusion hemorrhage in real time. Neurosonology examinations are indispensable bedside tools assisting in the diagnosis, risk stratification, peri-interventional monitoring, and follow-up of patients with CAD. PMID- 29334162 TI - Prevalence of metabolic syndrome in children with moderate to severe psoriasis treated with TNF inhibitors in comparison to conventional agents. AB - Association of childhood psoriasis with metabolic syndrome has not been studied well. TNF-alfa contributes to the inflammation seen in metabolic syndrome, and recently etanercept has shown to reduce the levels of inflammatory markers. Assessment of prevalence of metabolic syndrome in juvenile psoriasis patients in Kuwait. We included 236 patients with moderate to severe psoriasis below 18 years treated for at least 24 weeks with TNF inhibitors (Group A), and equal number of age and sex matched cases treated with conventional medications (Group B). The metabolic syndrome (MBS) was defined according to the International Diabetes Foundation (IDF 2007 criteria for children). Increased waist circumference was seen in 56.77% of cases in Group A. Triglyceridemia was less frequent in Group A. MBS was higher in Group B [41.52% vs. 50.42%, odds ratio (OR) 1.76, 95% CI 1.19 2.41; p = .005]. Psoriasis is associated with higher prevalence of metabolic syndrome in children. Six months of anti TNF treatment showed lesser association with metabolic syndrome. With fasting blood glucose, and serum TG seen in significantly lesser number of patients in this group. PMID- 29334163 TI - Isomerically Pure Star-Shaped Triphenylene-Perylene Hybrids Involving Highly Extended pi-Conjugation. AB - The synthesis and characterization of a new type of a highly conjugated heterocyclic pi-chromophore, consisting of a central triphenylene core fused with three perylene monoimide units (star-shaped molecules), is described. By judicious bay functionalization with tert-butylphenoxy substituents, aggregation was completely prevented by using 1,1,2,2-tetrachloroethane, allowing for a straightforward purification and, for the very first time, the complete separation of the constitutional isomers by HPLC. Both isomers can be easily distinguished by means of several conventional spectroscopic techniques. Furthermore, we have illustrated the absence of supramolecular aggregates and enhanced processability by noncovalent functionalization of graphene substrates, showing an outstanding homogeneity and demonstrating a different doping behavior in both isomers, making it possible to distinguish them by Raman spectroscopy. PMID- 29334164 TI - Clinical evaluation of a novel fractional radiofrequency device for hair growth: Fractional radiofrequency for hair growth stimulation. AB - AGA is a common disorder. Different treatments are available to prevent hair loss and achieve hair growth with variable results. The purpose of the present study was to evaluate the efficacy and safety of a novel fractional radiofrequency (RF) device (HairLux, Innogen Technologies Ltd., Yokneam, Israel), to prevent hair loss and induce hair growth. Twenty-five patients received 10 fractional RF treatments every 2 weeks, and were followed up 2 months after the last treatment. All patients were evaluated by global photography. In 10 patients, blinded manual hair counts were performed. Patients demonstrated less hair shedding, fuller hair, and faster hair growth. There was an average increase of 31.6% in hair density (based on hair counts) and 18% increase in hair shaft thickness. All subjects tolerated the treatments well. The HairLux device is effective and safe for hair growth stimulation in AGA. Ten treatment sessions are recommended to maximize results. PMID- 29334165 TI - 3D Printing of Liquid Crystal Elastomeric Actuators with Spatially Programed Nematic Order. AB - Liquid crystal elastomers (LCEs) are soft materials capable of large, reversible shape changes, which may find potential application as artificial muscles, soft robots, and dynamic functional architectures. Here, the design and additive manufacturing of LCE actuators (LCEAs) with spatially programed nematic order that exhibit large, reversible, and repeatable contraction with high specific work capacity are reported. First, a photopolymerizable, solvent-free, main-chain LCE ink is created via aza-Michael addition with the appropriate viscoelastic properties for 3D printing. Next, high operating temperature direct ink writing of LCE inks is used to align their mesogen domains along the direction of the print path. To demonstrate the power of this additive manufacturing approach, shape-morphing LCEA architectures are fabricated, which undergo reversible planar to-3D and 3D-to-3D' transformations on demand, that can lift significantly more weight than other LCEAs reported to date. PMID- 29334166 TI - Investigating Nucleosome Accessibility for MNase, FeII Peplomycin, and Duocarmycin B2 by Using Capillary Electrophoresis. AB - Capillary electrophoresis, coupled with DNA 5' Texas Red labeling, was used to investigate the ability of MNase, FeII peplomycin, and duocarmycin B2 to access the nucleosome. Distinct accessibility patterns of these species to the nucleosome were observed. MNase was completely prevented from approaching the nucleosome core and exhibited a higher site specificity for targeting DNA sites located close to the core region. Intercalation of peplomycin in the nucleosomal core region was highly suppressed, but reaction sites located at the ends of the nucleosomal core remained accessible, which implied flexibility of the core DNA end. Duocarmycin B2 was able to enter and react in the core region, although its alkylating efficiency decreased significantly. PMID- 29334167 TI - Cross-Linking/Mass Spectrometry for Studying Protein Structures and Protein Protein Interactions: Where Are We Now and Where Should We Go from Here? AB - Structural mass spectrometry (MS) is gaining increasing importance for deriving valuable three-dimensional structural information on proteins and protein complexes, and it complements existing techniques, such as NMR spectroscopy and X ray crystallography. Structural MS unites different MS-based techniques, such as hydrogen/deuterium exchange, native MS, ion-mobility MS, protein footprinting, and chemical cross-linking/MS, and it allows fundamental questions in structural biology to be addressed. In this Minireview, I will focus on the cross-linking/MS strategy. This method not only delivers tertiary structural information on proteins, but is also increasingly being used to decipher protein interaction networks, both in vitro and in vivo. Cross-linking/MS is currently one of the most promising MS-based approaches to derive structural information on very large and transient protein assemblies and intrinsically disordered proteins. PMID- 29334168 TI - Representing causal knowledge in environmental policy interventions: Advantages and opportunities for qualitative influence diagram applications. AB - This article develops and explores a methodology for using qualitative influence diagrams in environmental policy and management to support decision-making efforts that minimize risk and increase resiliency. Influence diagrams are representations of the conditional aspects of a problem domain. Their graphical properties are useful for structuring causal knowledge relevant to policy interventions and can be used to enhance inference and inclusivity of multiple viewpoints. Qualitative components of influence diagrams are beneficial tools for identifying and examining the interactions among the critical variables in complex policy development and implementation. Policy interventions on social environmental systems can be intuitively diagrammed for representing knowledge of critical relationships among economic, environmental, and social attributes. Examples relevant to coastal resiliency issues in the US Gulf Coast region are developed to illustrate model structures for developing qualitative influence diagrams useful for clarifying important policy intervention issues and enhancing transparency in decision making. Integr Environ Assess Manag 2018;14:381-394. Published 2018. This article is a US Government work and is in the public domain in the USA. PMID- 29334169 TI - Impact of baseline clinical and laboratory features on the risk of thrombosis in children with acute lymphoblastic leukemia: A prospective evaluation. AB - BACKGROUND: Children with acute lymphoblastic leukemia (ALL) have increased risk of thromboembolism (TE). However, the predictors of ALL-associated TE are as yet uncertain. OBJECTIVE: This exploratory, prospective cohort study evaluated the effects of clinical (age, gender, ALL risk group) and laboratory variables (hematological parameters, ABO blood group, inherited and acquired prothrombotic defects [PDs]) at diagnosis on the development of symptomatic TE (sTE) in children (aged 1 to <=18) treated on the Dana-Farber Cancer Institute ALL 05-001 study. PROCEDURES: Samples collected prior to the start of ALL therapy were evaluated for genetic and acquired PDs (proteins C and S, antithrombin, procoagulant factors VIII (FVIII:C), IX, XI and von Willebrand factor antigen levels, gene polymorphisms of factor V G1691A, prothrombin gene G20210A and methylene tetrahydrofolate reductase C677T, anticardiolipin antibodies, fasting lipoprotein(a), and homocysteine). RESULTS: Of 131 enrolled patients (mean age [range] 6.4 [1-17] years) 70 were male patients and 20 patients (15%) developed sTE. Acquired or inherited PD had no impact on the risk of sTE. Multivariable analyses identified older age (odds ratio [OR] 1.13; 95% confidence interval [CI]: 1.01, 1.26) and non-O blood group (OR 3.64, 95% CI: 1.06, 12.51) as independent predictors for development of sTE. Patients with circulating blasts had higher odds of developing sTE (OR 6.66; 95% CI: 0.82, 53.85). CONCLUSION: Older age, non-O blood group, and presence of circulating blasts, but not PDs, predicted the risk of sTE during ALL therapy. We recommend evaluation of these novel risk factors in the development of ALL-associated TE. If confirmed, these easily accessible variables at diagnosis can help develop a risk-prediction model for ALL-associated TE. PMID- 29334170 TI - Representing causal knowledge in environmental policy interventions: Advantages and opportunities for qualitative influence diagram applications. AB - This article develops and explores a methodology for using qualitative influence diagrams in environmental policy and management to support decision making efforts that minimize risk and increase resiliency. Influence diagrams are representations of the conditional aspects of a problem domain. Their graphical properties are useful for structuring causal knowledge relevant to policy interventions and can be used to enhance inference and inclusivity of multiple viewpoints. Qualitative components of influence diagrams are beneficial tools for identifying and examining the interactions among the critical variables in complex policy development and implementation. Policy interventions on social environmental systems can be intuitively diagrammed for representing knowledge of critical relationships among economic, environmental, and social attributes. Examples relevant to coastal resiliency issues in the U.S. Gulf Coast region are developed to illustrate model structures for developing qualitative influence diagrams useful for clarifying important policy intervention issues and enhancing transparency in decision making. This article is protected by copyright. All rights reserved. PMID- 29334171 TI - Reaction Mechanism for Direct Cyclization of Linear C5 , C6 , and C7 Alkenes over H-ITQ-13 Zeolite Investigated Using Density Functional Theory. AB - Although dienes or trienes have been shown to be possible precursors for cyclization, direct cyclization of alkenes or alkoxides has not been systematically studied yet. Thus, the reaction mechanism of cyclization of linear alkenes over H-ITQ-13 was investigated here by density functional theory considering dispersive interactions (DFT-D). The similar free energy of different linear alkoxides of the same carbon number suggests that they can co-exist in the H-ITQ-13 intersection at 673.15 K during the methanol to olefins (MTO) process. The formation of linear alkenes by olefins methylation with methoxyl groups (ZOCH3 ), trimethyloxonium ions (TMO+ ), and methanol are kinetically more favorable than by dimerization of olefins. Linear alkoxides or alkenes prefer direct cyclization to cycloalkanes rather than hydride transfer to diene. This study provides new insight into the alkene cyclization and aromatization mechanisms in MTO process. PMID- 29334172 TI - Silica Nanoparticle-induced Cytokine Responses in BEAS-2B and HBEC3-KT Cells: Significance of Particle Size and Signalling Pathways in Different Lung Cell Cultures. AB - We have previously reported that silica nanoparticles (SiNPs) of nominal size 50 nm (Si50) induce the pro-inflammatory cytokines CXCL8 and IL-6 in BEAS-2B cells, via mechanisms involving MAPK p38, TACE-mediated TGF-alpha release and the NF kappaB pathway. In this study, we examined whether these findings are cell specific or might be extended to another epithelial lung cell model, HBEC3-KT, and also to SiNPs of a smaller size (nominal size of 10 nm; Si10). The TEM average size of Si10 and Si50 was 10.9 and 34.7 nm, respectively. The surface area (BET) of Si10 was three times higher than for Si50 per mass unit. With respect to hydrodynamic size (DLS), Si10 in exposure medium showed a higher z average for the main peak than Si50, indicating more excessive agglomeration. Si10 strongly induced CXCL8 and IL-6, as assessed by ELISA and RT-PCR, and was markedly more potent than Si50, even when adjusted to equal surface area. Furthermore, Si10 was far more cytotoxic, measured as lactate dehydrogenase (LDH) release, than Si50 in both epithelial cell cultures. With respect to signalling pathways, Western analysis and experiments with and without inhibition of MAPK, TACE and NF-kappaB (synthetic inhibitors) revealed that p38-phosphorylation, TACE mediated TGF-alpha release and NF-kappaB activation seem to be important triggering mechanisms for both Si50 and Si10 in the two different lung epithelial cell cultures. In conclusion, the identified signalling pathways are suggested to be important in inducing cytokine responses in different epithelial cell types and also for various sizes of silica nanoparticles. PMID- 29334173 TI - Microfluidic Templated Multicompartment Microgels for 3D Encapsulation and Pairing of Single Cells. AB - Controlled encapsulation and pairing of single cells within a confined 3D matrix can enable the replication of the highly ordered cellular structure of human tissues. Microgels with independently controlled compartments that can encapsulate cells within separately confined hydrogel matrices would provide precise control over the route of pairing single cells. Here, a one-step microfluidic method is presented to generate monodisperse multicompartment microgels that can be used as a 3D matrix to pair single cells in a highly biocompatible manner. A method is presented to induce microgels formation on chip, followed by direct extraction of the microgels from oil phase, thereby avoiding prolonged exposure of the microgels to the oil. It is further demonstrated that by entrapping stem cells with niche cells within separate but adjacent compartments of the microgels, it can create complex stem cell niche microenvironments in a controlled manner, which can serve as a useful tool for the study of cell-cell interactions. This microfluidic technique represents a significant step toward high-throughput single cells encapsulation and pairing for the study of intercellular communications at single cell level, which is of significant importance for cell biology, stem cell therapy, and tissue engineering. PMID- 29334174 TI - Trichloroacetic acid (80%) as a chemical debridement method for chronic venous leg ulcers-A pilot study. AB - Debridement is essential for the optimal care of venous leg ulcers. Several debridement methods with different limitations may be deployed. Trichloroacetic acid (TCA) is used for several dermatological purposes. Its application as a chemical debridement method for leg ulcers has never been explored. We designed a prospective study to determine the role of 80% TCA solution as a chemical debridement method for leg ulcers, regarding efficacy and procedure-associated pain. Chronic venous leg ulcers were treated with 3 cycles of 80% TCA solution or curettage over 1 week. Pain and the mean percentage of fibrin and devitalized tissue covering wound bed were evaluated. At the end of the study, a trend towards larger fibrin mean reduction among the TCA treated ulcers was observed, although this difference was not statistically significant (P = .35). The mean pain score after TCA application was significantly reduced compared to pain after curettage alone (P < 0.001). TCA presented several advantages over mechanical debridement: it is a more selective debridement method, has haemostatic properties, and a simpler and faster application. The 80% TCA solution may be a cheap, simple, and considerably less-painful chemical debridement method for venous leg ulcers compared to classical mechanical debridement. PMID- 29334175 TI - Efficient Catalytic Oxidation of 5-Hydroxymethylfurfural to 2,5-Furandicarboxylic Acid by Magnetic Laccase Catalyst. AB - 2,5-Furandicarboxylic acid (FDCA) is a bio-based platform chemical for the production of polyethylene furanoate (PEF) and other valuable furanic chemicals. A magnetic laccase catalyst with (2,2,6,6-tetramethyl-piperidin-1-yl)oxyl (TEMPO) as the mediator has the remarkable capability of oxidizing 5 hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA). Under optimal reaction conditions, a quantitative yield (90.2 %) of FDCA with complete HMF conversion was obtained after 96 h of reaction. More importantly, the magnetic laccase catalyst exhibited good recyclability and stability, maintaining 84.8 % of its original activity following six reuse cycles. This is the first report on the efficient catalytic oxidation of HMF to FDCA by using an immobilized enzyme catalyst. PMID- 29334176 TI - The effect of 22.5 kHz low-frequency contact ultrasound debridement (LFCUD) on lower extremity wound healing for a vascular surgery population: A randomised controlled trial. AB - The aim of this study was to compare changes in wound size and appearance and health complication rates in patients with vasculopathy and lower-extremity wounds treated with or without low-frequency contact ultrasound debridement (LFCUD) This study was a randomised controlled trial. The study was conducted in a vascular surgery service, including outpatient wound clinic and inpatient ward, in a tertiary care academic centre. In total, 70 patients with vasculopathy and lower-extremity wounds of mixed aetiology were enrolled in the trial; 68 completed the study. Patients were randomised to receive LFCUD plus usual care (n = 33) or usual care (n = 37) at 4 weekly visits, and were followed thereafter for up to 12 wk. The main outcome measures included closed wounds, change in wound surface area (WSA), and wound appearance by the revised Photographic Wound Assessment Tool (revPWAT). After 4 weekly LFCUD treatments, patients in the LFCUD group had significantly better wound appearance (total revPWAT score) compared with the control group treated only with usual care (P = <0.05). LFCUD-treated wounds also had a significant reduction in WSA over 4 wk that was not found in the UC group. LFCUD treatment was also associated with a greater number of healed wounds, odds ratio 5.00 (95% CI 1.24-20.25), and fewer instances of wound deterioration. Weekly LFCUD applications to patients with significant vasculopathy resulted in superior healing outcomes when compared with current usual wound care practice. PMID- 29334177 TI - Polypropylene Nonwoven Fabric@Poly(ionic liquid)s for Switchable Oil/Water Separation, Dye Absorption, and Antibacterial Applications. AB - Pollutants in wastewater include oils, dyes, and bacteria, making wastewater cleanup difficult. Multifunctional wastewater treatment media consisting of poly(ionic liquid)-grafted polypropylene (PP) nonwoven fabrics (PP@PIL) are prepared by a simple and scalable surface-grafting process. The fabricated PP@PIL fabrics exhibit impressive switchable oil/water separation (eta>99 %) and dye absorption performance (q=410 mg g-1 ), as well as high antibacterial properties. The oil/water separation can be easily switched by anion exchanging of the PIL segments. Moreover, the multiple functions (oil/water separation, dye absorption, and antibacterial properties) occurred at the same time, and did not interfere with each other. The multifunctional fibrous filter can be easily regenerated by washing with an acid solution, and the absorption capacity is maintained after many recycling tests. These promising features make PIL-grafted PP nonwoven fabric a potential one-step treatment for multicomponent wastewater. PMID- 29334178 TI - Factors associated with perceived accuracy of the Undetectable = Untransmittable slogan among men who have sex with men: Implications for messaging scale-up and implementation. AB - INTRODUCTION: Recent research has shown high efficacy of HIV treatment for reducing the risk of HIV transmission to sexual partners. As the efficacy of treatment as prevention (TasP) has proliferated, a new messaging campaign, Undetectable = Untransmittable, has been gaining popularity. The purpose of this paper was to assess factors associated with the perceived accuracy of this TasP messaging strategy among a large and diverse sample of gay, bisexual, and other men who have sex with men (GBMSM) in order to inform subsequent efforts at large scale and implementation of the HIV prevention message. METHODS: We conducted a nationwide survey of GBMSM in the U.S. recruited from an online social networking site and a mobile sexual networking app. We analysed data from 12,222 GBMSM separately by HIV status to examine sociodemographic and behavioural factors associated with ratings of the accuracy of the Undetectable = Untransmittable message, which included the option to indicate not understanding what "undetectable" meant. RESULTS: Among HIV-negative and unknown men, multivariable linear regression indicated that being on pre-exposure prophylaxis (PrEP), identifying as gay or queer (versus bisexual or straight), recent serodiscordant condomless anal sex (CAS), testing every six months or more often, less concern about sexually transmitted infection (STI) infection, and lower perceived risk of HIV infection were the factors with the largest independent effect on rating the Undetectable = Untransmittable statement as more accurate. Fewer factors emerged as associated with accuracy ratings among HIV-positive participants-reporting an undetectable viral load, a lifetime acquired immune deficiency syndrome (AIDS) diagnosis, and lower concern about STI infection were the factors most strongly associated with rating the statement as more accurate. CONCLUSIONS: The findings of the current study highlight variability in the perceived accuracy of the Undetectable = Untransmittable message, suggesting potential subgroups who might benefit from targeted educational campaigns, perhaps broadcast utilizing sexual networking apps. Numerous factors, particularly among HIV-negative and unknown GBMSM, were associated with rating the message as more accurate. In particular, being on PrEP and testing regularly were two of the variables most strongly associated with higher accuracy ratings among HIV-negative GBMSM, suggesting HIV prevention services as potential points of intervention for increasing HIV knowledge and decreasing HIV stigma. PMID- 29334179 TI - Functionalized Nanoparticles Efficiently Enhancing the Targeted Delivery, Tumor Penetration, and Anticancer Activity of 7-Ethyl-10-Hydroxycamptothecin. AB - The enhanced permeability and retention (EPR) effect of tumors is much more complex than initially defined, and it alone is not sufficient for targeted delivery of nanosized agents. Meanwhile, poor tumor penetration is another major challenge for the treatment of solid tumors using nanoparticles. Development of delivery systems for SN38, the active metabolite of CPT-11 in human and a very potent anticancer molecule, has become an attractive research area. PEGx p(HEMASN38)y (x and y are viable), a prodrug synthesized by using polyethylene glycol (PEG) as initiator and SN38 as monomer through atom transfer radical polymeration (ATRP) method, is previously reported. Using PEG2.4K -p(HEMASN38)3K as a model prodrug, herein an active-targeted strategy decorated with cys-arg-gly asp-lys (CRGDK), a peptide specifically binds to neuropilin-1 overexpressed by tumor vessels and tumor cells, is successfully established to further improve the delivery and efficacy of SN38. CRGDK-functionalized PEG2.4K -p(HEMASN38)3K (C SN38) nanoparticles and nonfunctionalized control (B-SN38) are prepared with two distinct sizes, 30 and 100 nm. Their physiochemical and biological characteristics are investigated in vitro and in vivo with multiple tumor models. It is demonstrated for the first time that CRGDK functionalization can be a promising strategy for efficient delivery of SN38, and C-SN38 is a potent drug candidate for the treatment of neuropilin-1 overexpressing tumors. PMID- 29334180 TI - Nitric Oxide Dependent Degradation of Polyethylene Glycol-Modified Single-Walled Carbon Nanotubes: Implications for Intra-Articular Delivery. AB - Polyethylene glycol (PEG)-modified carbon nanotubes have been successfully employed for intra-articular delivery in mice without systemic or local toxicity. However, the fate of the delivery system itself remains to be understood. In this study 2 kDa PEG-modified single-walled carbon nanotubes (PNTs) are synthesized, and trafficking and degradation following intra-articular injection into the knee joint of healthy mice are studied. Using confocal Raman microspectroscopy, PNTs can be imaged in the knee-joint and are found to either egress from the synovial cavity or undergo biodegradation over a period of 3 weeks. Raman analysis discloses that PNTs are oxidatively degraded mainly in the chondrocyte-rich cartilage and meniscus regions while PNTs can also be detected in the synovial membrane regions, where macrophages can be found. Furthermore, using murine chondrocyte (ATDC-5) and macrophage (RAW264.7) cell lines, biodegradation of PNTs in activated, nitric oxide (NO)-producing chondrocytes, which is blocked upon pharmacological inhibition of inducible nitric oxide synthase (iNOS), can be shown. Biodegradation of PNTs in macrophages is also noted, but after a longer period of incubation. Finally, cell-free degradation of PNTs upon incubation with the peroxynitrite-generating compound, SIN-1 is demonstrated. The present study paves the way for the use of PNTs as delivery systems in the treatment of diseases of the joint. PMID- 29334181 TI - Donor Variability in Growth Kinetics of Healthy hMSCs Using Manual Processing: Considerations for Manufacture of Cell Therapies. AB - Human mesenchymal stromal cells (hMSCs) are excellent candidates for cell therapy but their expansion to desired clinical quantities can be compromised by ex vivo processing, due to differences between donor material and process variation. The aim of this article is to characterize growth kinetics of healthy baseline "reference" hMSCs using typical manual processing. Bone-marrow derived hMSCs from ten donors are isolated based on plastic adherence, expanded, and analyzed for their growth kinetics until passage 4. Results indicate that hMSC density decreases with overall time in culture (p < 0.001) but no significant differences are observed between successive passages after passage 1. In addition, fold increase in cell number dropped between passage 1 and 2 for three batches, which correlated to lower performance in total fold increase and expansion potential of these batches, suggesting that proliferative ability of hMSCs can be predicted at an early stage. An indicative bounded operating window is determined between passage 1 and 3 (PDL < 10), despite the high inter-donor variability present under standardized hMSC expansion conditions used. hMSC growth profile analysis will be of benefit to cell therapy manufacturing as a tool to predict culture performance and attainment of clinically-relevant yields, therefore stratifying the patient population based on early observation. PMID- 29334182 TI - Designing 3D Biological Surfaces via the Breath-Figure Method. AB - The fabrication of biointerfaces that mimic cellular physiological environments is critical to understanding cell behaviors in vitro and for the design of tissue engineering. Breath figure is a self-assemble method that uses water droplets condensed from moisture as template and ends up with a highly ordered hexagonal pore array; this approach is used to fabricate various biological substrates. This progress report provides an overview of strategies to achieve topographical modifications and chemical-patterned arrays, such as modulation of the pore size, shape and selective decoration of the honeycomb holes. Using recent results in the biological fields, potential future applications and developments of honeycomb structures are commented upon. PMID- 29334183 TI - Engineering Polymersomes for Diagnostics and Therapy. AB - Engineered polymer vesicles, termed as polymersomes, confer a flexibility to control their structure, properties, and functionality. Self-assembly of amphiphilic copolymers leads to vesicles consisting of a hydrophobic bilayer membrane and hydrophilic core, each of which is loaded with a wide array of small and large molecules of interests. As such, polymersomes are increasingly being studied as carriers of imaging probes and therapeutic drugs. Effective delivery of polymersomes necessitates careful design of polymersomes. Therefore, this review article discusses the design strategies of polymersomes developed for enhanced transport and efficacy of imaging probes and therapeutic drugs. In particular, the article focuses on overviewing technologies to regulate the size, structure, shape, surface activity, and stimuli- responsiveness of polymersomes and discussing the extent to which these properties and structure of polymersomes influence the efficacy of cargo molecules. Taken together with future considerations, this article will serve to improve the controllability of polymersome functions and accelerate the use of polymersomes in biomedical applications. PMID- 29334184 TI - pH-Responsive PEG-Doxorubicin-Encapsulated Aza-BODIPY Nanotheranostic Agent for Imaging-Guided Synergistic Cancer Therapy. AB - Synergistic cancer therapy is of great interest for multiple advantages, such as excellent targeting accuracy, low side effects, and enhanced therapeutic efficiency. Herein, a near-infrared photosensitizer aza-BODIPY (AB) with high singlet oxygen quantum yield (PhiDelta = 82%) is designed and synthesized. With Schiff's base obtained from condensation reaction between doxorubicin (DOX) and polyethylene glycol-benzaldehyde (PEG-CHO) as the polymer matrix, aza-BODIPY is encapsulated to afford hydrophilic nanoparticles (DAB NPs). The DAB NPs exhibit high reactive oxygen species (ROS) generation rate and outstanding photothermal conversion efficiency (eta = 38.3%) under irradiation. In vivo fluorescence- and photothermal-imaging (PTI) results demonstrate that DAB NPs can specifically accumulate at tumor sites and serve as dual-modal imaging probe for cancer diagnosis. Particularly, triggered by acidic tumor microenvironment, the ?HC?N? bond of Schiff's base would be broken simultaneously, resulting in the efficient release of DOX from DAB NPs at tumor sites as well as enhancing the targeting performance of chemotherapeutics. Compared with free DOX and aza-BODIPY nanoparticles, DAB NPs can inhibit tumor growth more effectively through pH responsive photodynamic/photothermal/chemo synergistic therapy. This report may also present a practicable strategy to develop a pH-responsive nanotheranostic agent for tumor targeting, imaging, and therapy. PMID- 29334185 TI - Physical Properties of Implanted Porous Bioscaffolds Regulate Skin Repair: Focusing on Mechanical and Structural Features. AB - Porous bioscaffolds are applied to facilitate skin repair since the early 1990s, but a perfect regeneration outcome has yet to be achieved. Until now, most efforts have focused on modulating the chemical properties of bioscaffolds, while physical properties are traditionally overlooked. Recent advances in mechanobiology and mechanotherapy have highlighted the importance of biomaterials' physical properties in the regulation of cellular behaviors and regenerative processes. In skin repair, the mechanical and structural features of porous bioscaffolds are two major physical properties that determine therapeutic efficacy. Here, first an overview of natural skin repair with an emphasis on the major biophysically sensitive cell types involved in this multistage process is provided, followed by an introduction of the four roles of bioscaffolds as skin implants. Then, how the mechanical and structural features of bioscaffolds influence these four roles is discussed. The mechanical and structural features of porous bioscaffolds should be tailored to balance the acceleration of wound closure and functional improvements of the repaired skin. This study emphasizes that decoupling and precise control of the mechanical and structural features of bioscaffolds are significant aspects that should be considered in future biomaterial optimization, which can build a foundation to ultimately achieve perfect skin regeneration outcomes. PMID- 29334186 TI - Natural Humic-Acid-Based Phototheranostic Agent. AB - Humic acids, a major constituent of natural organic carbon resources, are naturally formed through the microbial biodegradation of animal and plant residues. Due to numerous physiologically active groups (phenol, carboxyl, and quinone), the biomedical applications of humic acid have been already investigated across different cultures for several centuries or even longer. In this work, sodium humate, the sodium salt of humic acid, is explored as phototheranostic agent for light-induced photoacoustic imaging and photothermal therapy based on intrinsic absorption in the near-infrared region. The purified colloidal sodium humate exhibits a high photothermal conversion efficiency up to 76.3%, much higher than that of the majority of state-of-the-art photothermal agents including gold nanorods, Cu9 S5 nanoparticles, antimonene quantum dots, and black phosphorus quantum dots, leading to obvious photoacoustic enhancement in vitro and in vivo. Besides, highly effective photothermal ablation of HeLa tumor is achieved through intratumoral injection. Impressively, sodium humate reveals ultralow toxicity at the cellular and animal levels. This work promises the great potential of humic acids as light-mediated theranostic agents, thus expanding the application scope of traditional humic acids in biomedical field. PMID- 29334188 TI - Soft Artificial Bladder Detrusor. AB - Developing soft devices for invasive procedures bears great importance for human health. The softness and large strain actuation of responsive hydrogels promise the potential to fabricate soft devices, which can attach on and assist to the function of organs. The key challenges lie in the fabrication of soft devices with robust actuating ability and biocompatibility to the attached organ. This paper presents a solution that integrates the thermoresponsive hydrogel membrane with flexible electronics and silk scaffold into a balloon-like soft device. As an example, the actuation assisting function of this soft device for shrinking an animal bladder is presented. The mechanical behaviors of the balloon-like soft device are experimentally and theoretically investigated. The concepts are applicable to other applications such as soft implants, soft robotics, and microfluidics. PMID- 29334189 TI - A Multifunctional Micellar Nanoplatform with pH-Triggered Cell Penetration and Nuclear Targeting for Effective Cancer Therapy and Inhibition to Lung Metastasis. AB - The enhancement of cellular internalization and subsequent achievement of a nuclear targeting of nanocarriers play an important role in maximizing the therapeutic potency and minimizing the side effects of encapsulated drugs. Herein, a multifunctional micellar nanoplatform simultaneously with high cell penetration and nuclear targeting through pH-triggered surface charge reversal is presented. The miscellar system is constructed from poly(ethylene glycol) poly(epsilon-caprolactone) with 2,3-dimethylmaleic anhydride-Tat decoration (PECL/DA-Tat). DA groups are used to mask the positive charge of Tat to prolong blood circulation of the nanocarriers. In the mildly acidic environment of tumor tissue, the system exhibits ultrasensitive negative to positive charge reversal, facilitating the cell internalization and subsequent nuclear targeting. The chemotherapeutic 10-hydroxycamptothecin conjugated to methoxy polyethylene glycol, which is loaded in this micelle, obviously enhances cytotoxicity against tumor cells. The in vivo therapy in mice bearing 4T1 breast tumor reveals that the system has a significant enhancement of both the endocytosis and nuclear enrichment, showing a highly effective antitumor efficacy and inhibition to lung metastasis. PMID- 29334187 TI - Surveying the landscape of optogenetic methods for detection of protein-protein interactions. AB - Mapping the protein-protein interaction (PPi) landscape is of critical importance to furthering our understanding how cells and organisms function. Optogenetic methods, that is, approaches that utilize genetically encoded fluorophores or fluorogenic enzyme reactions, uniquely enable the visualization of biochemical phenomena in live cells with high spatial and temporal accuracy. Applying optogenetic methods to the detection of PPis requires the engineering of protein based systems in which an optical signal undergoes a substantial change when the two proteins of interest interact. In recent years, researchers have developed a number of creative and effective optogenetic methods that achieve this goal, and used them to further elaborate our map of the PPi landscape. In this review, we provide an introduction to the general principles of optogenetic PPi detection, and then provide a number of representative examples of how these principles have been applied. We have organized this review by categorizing methods based on whether the signal generated is reversible or irreversible in nature, and whether the signal is localized or nonlocalized at the subcellular site of the PPi. We discuss these techniques giving both their benefits and drawbacks to enable rational choices about their potential use. This article is categorized under: Laboratory Methods and Technologies > Imaging Laboratory Methods and Technologies > Macromolecular Interactions, Methods Analytical and Computational Methods > Analytical Methods. PMID- 29334190 TI - The effects of low levels of trivalent ions on a standard strain of Escherichia coli (ATCC 11775) in aqueous solutions. AB - Considering the ever-growing usage of trivalent salts in water treatment, for example, lanthanum salts in rare earth, AlCl3 and FeCl3 , the effects of different trivalent cations on the bacterium Escherichia coli (E. coli) ATCC 11775 strain have been studied in aqueous solutions. From colony incubation studies, the colony-forming unit (CFU) densities were found to decrease significantly in the presence of even low levels (10-5 mol/L) of lanthanum chloride. This level of reduction in CFU number is comparable to the results obtained using the known bacteriocidal cationic surfactant, C14 TAB. By comparison, exposure of the cells to low levels of trivalent ion, aluminum and chromium ion solutions produced only modest reductions in CFU density. The results from the incubation studies suggest that the bacteriostatic mechanism of La3+ ions has similarities to that of the cationic surfactant, and different to that of the other trivalent ions. Size distribution and zeta potential measurements of E. coli cells and phospholipid vesicles in the presence of trivalent cations solutions suggested significant cell shrinkage probably caused by membrane disruption. PMID- 29334191 TI - Exogenous oestrogen inhibits genital transmission of cell-associated HIV-1 in DMPA-treated humanized mice. AB - INTRODUCTION: HIV affects more women than any other life-threatening infectious agent, and most infections are sexually transmitted. HIV must breach the female genital tract mucosal barrier to establish systemic infection, and clinical studies indicate virus more easily evades this barrier in women using depot medroxyprogesterone acetate (DMPA) and other injectable progestins for contraception. Identifying a potential mechanism for this association, we learned DMPA promotes susceptibility of wild-type mice to genital herpes simplex virus type 2 (HSV-2) infection by reducing genital tissue expression of the cell-cell adhesion molecule desmoglein-1 (DSG-1) and increasing genital mucosal permeability. Conversely, DMPA-mediated increases in genital mucosal permeability and HSV-2 susceptibility were eliminated in mice concomitantly administered exogenous oestrogen (E). To confirm and extend these findings, herein we used humanized mice to define effects of systemic DMPA and intravaginal (ivag) E administration on susceptibility to genital infection with cell-associated HIV-1. METHODS: Effects of DMPA or an intravaginal (ivag) E cream on engraftment of NOD scid-IL-2Rgcnull (NSG) mice with human peripheral blood mononuclear cells (hPBMCs) were defined with flow cytometry. Confocal microscopy was used to evaluate effects of DMPA, DMPA and E cream, or DMPA and the pharmacologically active component of the cream on vaginal tissue DSG-1 expression and genital mucosal permeability to low molecular weight (LMW) molecules and hPBMCs. In other studies, hPBMC-engrafted NSG mice (hPBMC-NSG) received DMPA or DMPA and ivag E cream before genital inoculation with 106 HIV-1-infected hPBMCs. Mice were euthanized 10 days after infection, and plasma HIV-1 load quantified by qRT-PCR and splenocytes used to detect HIV-1 p24 antigen via immunohistochemistry and infectious virus via TZM-bl luciferase assay. RESULTS: Whereas hPBMC engraftment was unaffected by DMPA or E treatment, mice administered DMPA and E (cream or the pharmacologically active cream component) displayed greater vaginal tissue expression of DSG-1 protein and decreased vaginal mucosal permeability to LMW molecules and hPBMCs versus DMPA-treated mice. DMPA-treated hPBMC-NSG mice were also uniformly susceptible to genital transmission of cell-associated HIV-1, while no animal concomitantly administered DMPA and E cream acquired systemic HIV 1 infection. CONCLUSION: Exogenous E administration reduces susceptibility of DMPA-treated humanized mice to genital HIV-1 infection. PMID- 29334192 TI - Digitalizing Self-Assembled Chiral Superstructures for Optical Vortex Processing. AB - Cholesteric liquid crystal (CLC) chiral superstructures exhibit unique features; that is, polychromatic and spin-determined phase modulation. Here, a concept for digitalized chiral superstructures is proposed, which further enables the arbitrary manipulation of reflective geometric phase and may significantly upgrade existing optical apparatus. By encoding a specifically designed binary pattern, an innovative CLC optical vortex (OV) processor is demonstrated. Up to 25 different OVs are extracted with equal efficiency over a wavelength range of 116 nm. The multiplexed OVs can be detected simultaneously without mode crosstalk or distortion, permitting a polychromatic, large-capacity, and in situ method for parallel OV processing. Such complex but easily fabricated self-assembled chiral superstructures exhibit versatile functionalities, and provide a satisfactory platform for OV manipulation and other cutting-edge territories. This work is a vital step towards extending the fundamental understanding and fantastic applications of ordered soft matter. PMID- 29334193 TI - Managing risk of surgical procedures in pediatric transplant recipients taking mTOR inhibitors: What is the optimal strategy? PMID- 29334194 TI - Enrollment in early-phase clinical trials in pediatric oncology: The experience at Institut Curie. AB - BACKGROUND: The European Paediatric Regulation was introduced in 2007 to facilitate access to new medicines for children. Our study explored accessibility of early-phase trials in pediatric oncology, in line with the European Paediatric Regulation, to identify the reasons for not inviting patients to participate, parents' refusal, or inclusion failure. PROCEDURE: We conducted a retrospective chart review at Institut Curie, Paris, for all pediatric patients whose cancer progressed despite known effective treatments between July 2010 and December 2013. RESULTS: Out of 100 patients in the palliative phase, 52 received one or more invitations to participate in early-phase trials. Twenty parents declined the invitation, mainly prioritizing quality of life or fearing constraints. Fourteen inclusions failed despite parental approval, mostly due to rapid clinical deterioration. Five patients received no invitations because no early phase trials were available. Major reasons for noninclusion in the 43 remaining patients were presence of exclusion criteria or other physical factors, preference for conventional treatment, constraints, psychological factors, and follow-up in another hospital after moving. CONCLUSIONS: The Paediatric Regulation has led to increased availability of early-phase trials. Better timing of the proposal, designing less constraining early-phase trials, reducing waiting lists, and improving information for parents and children would facilitate pediatric access to new medicines. PMID- 29334195 TI - Exoproteome Profiling Reveals the Involvement of the Foldase PrsA in the Cell Surface Properties and Pathogenesis of Staphylococcus aureus. AB - Staphylococcus aureus is a bacterial pathogen that produces and exports many virulence factors that cause diseases in humans. PrsA, a membrane-bound foldase, is expressed ubiquitously in Gram-positive bacteria and required for the folding of exported proteins into a stable and active structure. To understand the involvement of PrsA in posttranslocational protein folding in S. aureus, a PrsA deficient mutant of S. aureus HG001 was constructed. Using isobaric tags for relative and absolute quantification (iTRAQ)-based mass spectrometry analyses, the exoproteomes of PrsA mutant and wild type S. aureus were comparatively profiled, and 163 cell wall-associated proteins and 67 exoproteins with altered levels have been identified in the PrsA-deficient mutant. Bioinformatics analyses further reveal that prsA deletion altered the amounts of proteins that are potentially involved in the regulation of cell surface properties and bacterial pathogenesis. To determine the relevancy of our findings, we investigated the functional consequence of prsA deletion in S. aureus. PrsA deficiency can enhance bacterial autoaggregation and increase the adhesion ability of S. aureus to human lung epithelial cells. Moreover, mice infected with PrsA-deficient S. aureus had a better survival rate compared with those infected with the wild-type S. aureus. Collectively, our findings reveal that PrsA is required for the posttranslocational folding of numerous exported proteins and critically affects the cell surface properties and pathogenesis of S. aureus. PMID- 29334196 TI - Microfluidic Tumor-Vascular Model to Study Breast Cancer Cell Invasion and Intravasation. AB - Cancer is a major leading cause of disease-related death in the world. The severe impact of cancer can be attributed to poor understanding of the mechanisms involved in earliest steps of the metastatic cascade, specifically invasion into the surrounding stroma and intravasation into the blood capillaries. However, conducting integrated biological studies of invasion and intravasation have been challenging, within in vivo models and traditional in vitro assay, due to difficulties in establishing a precise tumor microenvironment. To that end, in this work, a novel 3D microfluidic platform comprised of concentric three-layer cell-laden hydrogels for simultaneous investigation of breast cancer cell invasion and intravasation as well as vasculature maturation influenced by tumor vascular crosstalk is developed. It was demonstrated that the presence of spontaneously formed vasculature enhance MDA-MB-231 invasion into the 3D stroma. Following invasion, cancer cells are visualized intravasating into the outer vasculature. Additionally, invading cancer cells significantly reduce vessel diameter while increasing permeability, consistent with previous in vivo studies. Major signaling cytokines involved in tumor-vascular crosstalk that govern cancer cell invasion and intravasation are further identified. Taken together, this platform will enable unique insights of critical biological events within the metastatic cascade, with significant potential for developing efficient cancer therapeutics. PMID- 29334198 TI - Enzyme-Based Glucose Sensor: From Invasive to Wearable Device. AB - Blood glucose concentration is a key indicator of patients' health, particularly for symptoms associated with diabetes mellitus. Because of the large number of diabetic patients, many approaches for glucose measurement have been studied to enable continuous and accurate glucose level monitoring. Among them, electrochemical analysis is prominent because it is simple and quantitative. This technology has been incorporated into commercialized and research-level devices from simple test strips to wearable devices and implantable systems. Although directly monitoring blood glucose assures accurate information, the invasive needle-pinching step to collect blood often results in patients (particularly young patients) being reluctant to adopt the process. An implantable glucose sensor may avoid the burden of repeated blood collections, but it is quite invasive and requires periodic replacement of the sensor owing to biofouling and its short lifetime. Therefore, noninvasive methods to estimate blood glucose levels from tears, saliva, interstitial fluid (ISF), and sweat are currently being studied. This review discusses the evolution of enzyme-based electrochemical glucose sensors, including materials, device structures, fabrication processes, and system engineering. Furthermore, invasive and noninvasive blood glucose monitoring methods using various biofluids or blood are described, highlighting the recent progress in the development of enzyme-based glucose sensors and their integrated systems. PMID- 29334197 TI - Increased non-AIDS mortality among persons with AIDS-defining events after antiretroviral therapy initiation. AB - INTRODUCTION: HIV-1 infection leads to chronic inflammation and to an increased risk of non-AIDS mortality. Our objective was to determine whether AIDS-defining events (ADEs) were associated with increased overall and cause-specific non-AIDS related mortality after antiretroviral therapy (ART) initiation. METHODS: We included HIV treatment-naive adults from the Antiretroviral Therapy Cohort Collaboration (ART-CC) who initiated ART from 1996 to 2014. Causes of death were assigned using the Coding Causes of Death in HIV (CoDe) protocol. The adjusted hazard ratio (aHR) for overall and cause-specific non-AIDS mortality among those with an ADE (all ADEs, tuberculosis (TB), Pneumocystis jiroveci pneumonia (PJP), and non-Hodgkin's lymphoma (NHL)) compared to those without an ADE was estimated using a marginal structural model. RESULTS: The adjusted hazard of overall non AIDS mortality was higher among those with any ADE compared to those without any ADE (aHR 2.21, 95% confidence interval (CI) 2.00 to 2.43). The adjusted hazard of each of the cause-specific non-AIDS related deaths were higher among those with any ADE compared to those without, except metabolic deaths (malignancy aHR 2.59 (95% CI 2.13 to 3.14), accident/suicide/overdose aHR 1.37 (95% CI 1.05 to 1.79), cardiovascular aHR 1.95 (95% CI 1.54 to 2.48), infection aHR (95% CI 1.68 to 2.81), hepatic aHR 2.09 (95% CI 1.61 to 2.72), respiratory aHR 4.28 (95% CI 2.67 to 6.88), renal aHR 5.81 (95% CI 2.69 to 12.56) and central nervous aHR 1.53 (95% CI 1.18 to 5.44)). The risk of overall and cause-specific non-AIDS mortality differed depending on the specific ADE of interest (TB, PJP, NHL). CONCLUSIONS: In this large multi-centre cohort collaboration with standardized assignment of causes of death, non-AIDS mortality was twice as high among patients with an ADE compared to without an ADE. However, non-AIDS related mortality after an ADE depended on the ADE of interest. Although there may be unmeasured confounders, these findings suggest that a common pathway may be independently driving both ADEs and NADE mortality. While prevention of ADEs may reduce subsequent death due to NADEs following ART initiation, modification of risk factors for NADE mortality remains important after ADE survival. PMID- 29334199 TI - Comparison of Cabergoline and Quinagolide in Prevention of Severe Ovarian Hyperstimulation Syndrome among Patients Undergoing Intracytoplasmic Sperm Injection. AB - Background: The aim of the current study is to compare quinagolide with cabergoline in prevention of ovarian hyperstimulation syndrome (OHSS) among high risk women undergoing intracytoplasmic sperm injection (ICSI). MATERIALS AND METHODS: This randomized clinical trial study was performed from March 2015 to February 2017. One hundred and twenty six women undergoing ICSI who were at high risk of developing OHSS (having over 20 follicles of >12 mm), were randomized into two groups. The first group received cabergoline 0.5 mg and the second group received quinagolide 75 mg every day for 7 days commencing on the day of gonadotropin-releasing hormone (GnRH) agonist administration. Then OHSS symptoms as well as their severity were assessed according to standard definition, 3 and 6 days after GnRH agonist administration. Ascites were determined by trans-vaginal ultrasound. Other secondary points were the number of oocytes and the number of embryos and their quality. Quantitative and qualitative data were analyzed using Student's t test, and Chi-square or fisher's exact test, respectively. A P<0.05 was considered statistically significant. RESULTS: The incidence of severe OHSS in the quinagolide-treated group was 3.1% while it was 15.8% in cabergolinetreated subjects (P<0.001). Ascites were less frequent after treatment with Quinagolide as compared to cabergoline (21.9% vs. 61.9%, respectively) (P=0.0001). There was no significant statistical deferences between the two groups in terms of mean age, number of oocytes, metaphase I and metaphase II oocytes, and germinal vesicles. There was a significant difference between cabergoline and quinagolide groups regarding the embryo number (P=0.037) with cabergoline-treated group showing a higher number of embryos. But, the number of good quality embryo in quinagolide- treated individuals was significantly higher than that of the cabergoline-treated group (P=0.001). CONCLUSION: Quinagolide seems to be more effective than Cabergoline in prevention of OHSS in high-risk patients undergoing ICSI. (Registration number: IRCT2016053128187N1). PMID- 29334200 TI - Comparative Effectiveness of Antidepressant Medication versus Psychological Intervention on Depression Symptoms in Women with Infertility and Sexual Dysfunction. AB - Background: Fertility loss is considered as a challenging experience. This study was conducted to compare the effectiveness of antidepressant medication and psychological intervention on depression symptoms in women with infertility and sexual dysfunctions (SD). MATERIALS AND METHODS: This randomized, controlled clinical trial study was completed from December 2014 to June 2015 in Babol, Iran. Of the 485 participants, 93 were randomly assigned in a 1:1:1 ratio to psychosexual therapy (PST), bupropion extended-release (BUP ER) at a dose of 150 mg/d, and control (no intervention) groups. The beck depression inventory (BDI) was completed at the beginning and end of the study. Duration of study was eight weeks. Statistical analyses were performed by using paired-test and analysis of covariance. RESULTS: The mean depression score on the BDI was 22.35 +/- 8.70 in all participants. Mean BDI score decreased significantly in both treatment groups (PST: P<0.0001, BUP: P<0.002) from baseline to end of the study, whereas intra individual changes in BDI score were not significant in the control group. The decrease in mean BDI score was greater with PST compared to BUP treatment (P<0.005) and the control group (P<0.0001). The PST group showed greater improvement in depression levels (severe to moderate, moderate to mild) in comparison with the two other groups (P<0.001). Drug treatment was well tolerated by the participants in the BUP group. CONCLUSION: PST can be a reliable alternative to BUP ER for relieving depression symptoms in an Iranian population of women with infertility and SD (Registration number: IRCT2015042721955N2). PMID- 29334201 TI - Comparison of The Effects of A Positive Reappraisal Coping Intervention and Problem-Solving Skills Training on Depression during The Waiting Period of The Result of Intrauterine Insemination Treatment: A Randomized Control Trial. AB - Background: The outcomes of fertility treatments are unpredictable, and levels of depressive symptoms increase in patients during the waiting period of the result of intrauterine insemination (IUI) treatment. The aim of this study was to compare the effects of a positive reappraisal coping intervention (PRCI) and problem-solving skills training (PSS) on depression during the waiting period of the result of IUI Treatment. MATERIALS AND METHODS: This randomized control clinical trial was done among 108 women undergoing IUI treatment. In the control group, the women received routine care. In the PRCI group, women attended two training sessions and were asked to complete coping thoughts cards and fill out daily monitoring forms during the waiting period. In the PSS group, PSS were taught over three sessions. The depression was measured by the beck depression inventory. RESULTS: On the 10thth day of the IUI waiting period, there were significant differences between the control group (21.42 +/- 11.42) and the PSS group (12.52 +/- 8.05) and PRCI groups (13.14 +/- 9.7) (P<0.001), but no significant difference between the PRCI group and the PSS group. CONCLUSION: According to the results of this randomized control trial there is no difference between a PRCI and PSS on depression during the waiting period of the result of IUI treatment. This suggests that both interventions can be used to help infertile women combat depression during the waiting period of the result of fertility treatments (Registration number: IRCT2016020926490N1). PMID- 29334202 TI - Lifestyle-Related Factors Associated with Reproductive Health in Couples Seeking Fertility Treatments: Results of A Pilot Study. AB - Background: The objective of this pilot study was to evaluate the feasibility of conducting a larger prospective cohort study, which will aim at determining the independent contribution of male and female lifestyle-related factors to assisted reproductive technology (ART) success. The study also examined whether couples seeking fertility treatments present lifestyle-related factors that may interfere with their reproductive health. MATERIALS AND METHODS: This prospective pilot study was conducted in a fertility clinic between May 2015 and February 2016. Feasibility factors evaluated were recruitment rates, compliance with the protocol, retention rate and ART outcomes at six-month follow-up. Anthropometric profile and lifestyle habits of both partners were evaluated before the beginning of infertility treatments. RESULTS: We approached 130 eligible infertile couples. Among them, 32 (25%) agreed to participate and 28 (88%) complied with the protocol. At six-month follow-up, seven couples (25%) did not start, or stop, infertility treatments and 13 couples (62%) achieved a clinical pregnancy. Among the 28 couples included in the analyses, 16% of the partners were obese and 23% had abdominal obesity. The majority of the subjects were still drinking alcohol (84%). Sixty-eight percent of women needed improvement in their diet (vs. 95% of men, P=0.05) and none of them achieved the Canadian recommendations for physical activity (vs. 33% of men, P=0.001). Moreover, 35% of the partners had a poor sleep quality. Overall, women presented a worse reproductive health profile than men, with 3.1 and 2.4 out of seven adverse factors, respectively (P=0.04). CONCLUSION: Conducting a large prospective cohort study in our fertility clinic will be feasible but recruitment and compliance with the protocol need to be improved. Many women and men seeking fertility treatments present unfavourable lifestyle-related factors that may explain, at least partially, their difficulties in conceiving. PMID- 29334203 TI - Modeling In Vitro Fertilization Data Considering Multiple Outcomes Observed among Iranian Infertile Women. AB - Background: Women undergoing in vitro fertilization (IVF) cycles should successfully go through multiple points during the procedure (i.e., implantation, clinical pregnancy, no spontaneous abortion and delivery) to achieve live births. In this study, data from multiple cycles and multiple points during the IVF cycle are collected for each individual to model the effects of factors associated with success at different stages of IVF cycles in Iranian infertile women. MATERIALS AND METHODS: This historical cohort study includes 996 assisted reproductive technology (ART) cycles of 511 infertile women. Covariates considered in this study were women's age, type of cycle (fresh or frozen embryo transfer), number of embryos transferred and having polycystic ovarian syndrome during IVF cycles. Generalized estimating equations were used for calculation of odds ratio (OR) and 95% confidence intervals (95% CI) of success at different stages during IVF cycles. Cluster-weighted generalized estimating equations (CWGEE) was also fitted to handle informative cluster size. RESULTS: After adjusting for potential confounders, it was seen that receiving frozen embryo transfer was associated with higher odds of success compared to receiving fresh embryo transfer (adj OR: 2.26, 95% CI: 1.66-3.07); however, cycles with fresh embryo transfer exhibited better results in clinical pregnancy compared to those receiving frozen embryo. Being in the age category of 38 to 40 was associated with lower odds of success compared to the reference category (p<35) in CWGEE model (adj OR: 0.67, 95% CI: 0.45-1.00). The number of embryos transferred was positively associated with the odds of success in CWGEE (adj OR: 1.21, 95% CI: 1.03-1.42) as well as the GEE model. CONCLUSION: Receiving frozen embryo was positively associated with odds of success compared to cycles with fresh embryo. The number of embryos transferred and women's age were significantly associated with odds of success. PMID- 29334204 TI - Detection of Chlamydia trachomatis in Pap Smear Samples from South Khorasan Province of Iran. AB - Background: Chlamydia trachomatis (CT), the most common bacterial sexually transmitted infection (STI), leads to pelvic inflammatory disease, infertility and chronic pelvic pain in women as well as an increased risk of vertical transmission, conjunctivitis and pneumonitis in infants. It may also be a co factor along with human papillomavirus (HPV) in cervical cancer progression. We aimed to determine the prevalence of CT genotypes in genital specimens of women from South Khorasan, Iran and to test the association between CT and cytology statistics. MATERIALS AND METHODS: This was a cross-sectional study on 248 Pap smear samples from women who visited a gynecologist for routine Pap smear testing in South Khorasan province. Nested polymerase chain reaction (PCR) was used to test the residual fluids of Pap smears for CT-DNA after cytological examination. Direct sequencing, alignment and phylogenic analyses were performed on eight samples to identify their genotypes. RESULTS: The mean age of patients was 37.54 +/- 5.21 years. Most samples had a normal cytology (214 cases, 86.29%). Overall, 31 samples were positive for CT infection (12.5%) of which 20 (9.34%) were normal and 11 (32.35%) were abnormal, with the frequency difference being significant (P=0.022). The co-infection of CT/HPV in total was identified in 14 cases (5.6%). The results of sequencing eight samples out of the 31 CT positive samples revealed the detection of genotypes D and E, each with four cases. CONCLUSION: We show that a high prevalence of genital CT infection is present in women with both normal and abnormal cytology; however, the higher prevalence among women in the abnormal group may indicate its involvement in cervical neoplasia. PMID- 29334205 TI - Overexpression of Endometrial Estrogen Receptor-Alpha in The Window of Implantation in Women with Unexplained Infertility. AB - Background: Failure in the endometrial receptivity may account for a significant number of infertility cases including unexplained infertility in women. Reduction in the endometrial estrogen receptor-alpha (ER-alpha) expression during implantation may be a critical event that coincides with the expression of specific genes and the formation of a receptive endometrium. The aim of the present study was to assess the expression of ER-alpha in the mid-secretory phase in the endometrium of women with unexplained infertility. MATERIALS AND METHODS: This case-control study was carried out on randomly selected fertile (n=10) and infertile (n=16) women whose source of infertility remained unexplained. We evaluated the expression of ER-alpha and glycodelin- A (GdA) through mRNA level measurement with real-time polymerase chain reaction (PCR) in the endometrium of fertile women and patients suffering from unexplained infertility and fertile women. Endometrial biopsies of each subject were collected during a single menstrual cycle 7 days after the peak of luteinizing hormone (LH+7). RESULTS: Endometrial expression level of ER-alpha was significantly (P<0.05) higher in the patients with unexplained infertility compared to the control. Significantly (P<0.05) lower levels of GdA expression were seen in women with unexplained infertility. A statistically non-significant negative correlation was observed between ER-alpha and GdA mRNA expression. CONCLUSION: Our findings demonstrate that reduction in the endometrial GdA expression is associated with elevated expression of ER-alpha in mid-luteal phase. Disruption in the endometrial ER alpha expression, which leads to defects in uterine receptivity, may contribute to unexplained infertility. PMID- 29334206 TI - Decreased Expression of Arginine-Phenylalanine-Amide-Related Peptide-3 Gene in Dorsomedial Hypothalamic Nucleus of Constant Light Exposure Model of Polycystic Ovarian Syndrome. AB - Background: An abnormality in pulse amplitude and frequency of gonadotropin releasing hormone (GnRH) secretion is the most characteristics of polycystic ovarian syndrome (PCOS). On the other hand, arginine-phenylalanine-amide (RFamide)-related peptide-3 (RFRP3) inhibits the secretion of GnRH in mammalian hypothalamus. The current study performed in order to investigate the expression of RFRP3 mRNA in the dorsomedial hypothalamic nucleus (DMH) after the induction of PCOS in a rat model of constant light exposure, and the possible role of parity on occurrence of PCOS. MATERIALS AND METHODS: In the experimental study, female nulliparous (n=12) and primiparous (n=12) rats were randomly subdivided into control and PCOS subgroups (n=6). PCOS were induced by 90 days exposure to constant light. After 90 days, blood, brain, and ovaries were sampled. Serum levels of follicle stimulating hormone (FSH), luteinizing hormone (LH), and testosterone were evaluated. In addition, six adult female ovariectomized rats as a control of real-time polymerase chain reaction (PCR) tests were prepared and in the DMH of all rats, the relative mRNA expression of RFRP3 was assessed. RESULTS: Histological evaluation of ovaries represented the polycystic features. In addition, serum concentrations of testosterone in the PCOS subgroups were more than the controls (P<0.05). Furthermore, the relative expression of RFRP3 mRNA in PCOS subgroups was lower than the controls (P<0.05). CONCLUSION: Constant light model of the PCOS-induced rats decreased the gene expression of RFRP3 in the DMH that suggests the decrease of RFRP3 may reduce its inhibitory effect on GnRH during the PCOS pathogenesis. This effect was stronger in the nulliparous rats than the primiparous. PMID- 29334207 TI - Screening for Causative Mutations of Major Prolificacy Genes in Iranian Fat Tailed Sheep. AB - Background: The presence of different missense mutations in sheep breeds have shown that the bone morphogenetic protein receptor 1B (BMPR1B), bone morphogenetic protein 15 (BMP15) and growth differentiation factor 9 (GDF9) genes play a vital role in ovulation rate and prolificacy in ewes. Therefore, the present study aims to investigate BMPR1B, BMP15 and GDF9 gene mutations in prolific ewes of Iranian fat-tailed Lori-Bakhtiari sheep. MATERIALS AND METHODS: In the present experimental study, genomic DNA was extracted from whole blood of 10 prolific Lori-Bakhtiari ewes with at least two twinning records in the first four parities to identify point mutations of the BMPR1B, BMP15 and GDF9 genes, using DNA sequencing. RESULTS: The results obtained from DNA sequencing showed a new synonymous mutation (g.66496G>A) in exon 8 of the BMPR1B gene, without any amino acid change. Sequencing of the BMP15 gene revealed a deletion of 3 bp (g.656_658delTTC) in exon 1, leading to an amino acid deletion (p.Leu19del). Four single nucleotide polymorphisms (G1:g.2118G>A, G2:g.3451T>C, G3:g.3457A>G and G4:g.3701G>A), were detected in exons 1 and 2 of the GDF9 gene, two of which caused amino acid substitutions (G1: p.87Arg>His and G4: p.241Glu>Lys). These amino acid alterations are proposed to have a benign impact on structure and function of the GDF9 polypeptide sequence. CONCLUSION: Three major prolificacy genes (BMPR1B, BMP15 and GDF9) were polymorphic in Lori-Bakhtiari sheep, although none of the major causative mutation was detected in this sheep type. Further studies using high throughput methods such as genome-wide association study (GWAS) and evaluation of other candidate genes are necessary in the future. PMID- 29334208 TI - Effects of Crocin on The Pituitary-Gonadal Axis and Hypothalamic Kiss-1 Gene Expression in Female Wistar Rats. AB - Background: Saffron (Crocus sativus L.) has been traditionally used as a spice for coloring and flavoring in some countries cuisine. One of the main components of saffron is Crocin. Recent research have shown that crocin has various pharmacological effects. The aim of this study was to assess the effects of crocin on the Pituitary-Gonadal axis and Kiss-1 gene expression in hypothalamus and ovarian tissue organization in female Wistar rats. MATERIALS AND METHODS: In this experimental study, 18 adult female Wistar rats were randomly divided into three groups. Control group received normal saline and experimental groups received two different doses of crocin (100 and 200 mg/kg) every two days for 30 days. After the treatment period, blood samples were obtained from the heart and centrifuged. Next, the serum levels of follicle-stimulating hormone (FSH) and luteinizing hormone (LH), estrogen and progesterone hormones were measured by ELISA assay. The ovarian tissues were removed and fixed for histological investigation. The hypothalamic Kiss-1 gene expression was measured using real time polymerase chain reaction (PCR). All data were analyzed using one-way ANOVA. RESULTS: A significant reduction (P=0.038) in the number of atretic graafian follicles (0.5 +/- 0.31) was observed in rats treated with 200 mg/kg crocin. In addition, estrogen concentration in experimental groups (35.04 +/- 0.85 and 36.18 +/- 0.69 in crocin 100 and 200 mg/kg groups, respectively) compared to control group (38.35 +/- 0.64) and progesterone concentration in rats treated with crocin 200 mg/kg (2.06 +/- 0.07) compared to control group (2.16 +/- 0.04), significantly decreased. Interestingly, relative expressions of Kiss-1 mRNA significantly decreased in experimental groups (0.00053 +/- 0.00051 and 0.0011 +/ 0.00066 in crocin 100 and 200 mg/kg groups, respectively) (P=0.000) compared to control group (1 +/- 0). CONCLUSION: Crocin, at hypothalamic level, reduces Kiss 1 gene expression and it can prevent follicular atresia and reduce serum levels of estrogen and progesterone. PMID- 29334209 TI - Comparison of The Effects of Vitrification on Gene Expression of Mature Mouse Oocytes Using Cryotop and Open Pulled Straw. AB - Background: Oocyte cryopreservation is an essential part of the assisted reproductive technology (ART), which was recently introduced into clinical practice. This study aimed to evaluate the effects of two vitrification systems Cryotop and Open Pulled Straw (OPS)-on mature oocytes gene expressions. MATERIALS AND METHODS: In this experimental study, the survival rate of metaphase II (MII) mouse oocytes were assessed after cryopreservation by vitrification via i. OPS or ii. Cryotop. Then we compared the fertilization rate of oocytes produced via these two methods. In the second experiment, we determined the effects of the two vitrification methods on the expression of Hspa1a, mn-Sod, and beta-actin genes in vitrified-warmed oocytes. Denuded MII oocytes were vitrified in two concentrations of vitrification solution (VS1 and VS2) by Cryotop and straw. We then compared the results using the two vitrification methods with fresh control oocytes. RESULTS: mn-Sod expression increased in the vitrified-warmed group both in OPS and Cryotop compared with the controls. We only detected Hspa1a in VS1 and control groups using Cryotop. The survival rate of the oocytes was 91.2% (VS1) and 89.2% (VS2) in the Cryotop groups (P=0.902) and 85.5% (VS1) and 83.6% (VS2) in the OPS groups (P=0.905). There were no significant differences between the Cryotop and the OPS groups (P=0.927). The survival rate in the Cryotop or the OPS groups was, nevertheless, significantly lower than the control group (P<0.001). The fertilization rates of the oocytes were 39% (VS1) and 34% (VS2) in the Cryotop groups (P=0.902) and 29 %( VS1) and 19.7% (VS2) in the OPS groups (P=0.413). The fertilization rates were achieved without significant differences among the Cryotop and OPS groups (P=0.755). CONCLUSION: Our results indicated that Cryotop vitrification increases both cooling and warming rates, but both Cryotop and OPS techniques have the same effect on the mouse oocytes after vitrification. PMID- 29334210 TI - Combined Effect of Retinoic Acid and Basic Fibroblast Growth Factor on Maturation of Mouse Oocyte and Subsequent Fertilization and Development. AB - Background: In this experimental study, germinal vesicle (GV) oocytes obtained from two-months-old NMRI mice were randomly divided into control, sham and three experimental groups. The basic culture medium was alpha-MEM supplemented with 10% fetal bovine serum (FBS), 50 mg/l streptomycin, 60 mg/l penicillin and 10 ng/ ml epidermal growth factors. Each of the experimental groups received one of the following treatments: RA (2 MUM), bFGF (20 ng/ml) or combination of RA and bFGF with the indicated concentrations. After 24 hours, capacitated spermatozoa were added to in vitro matured oocytes. Five hours later, the oocytes were cultured in fresh droplets of M2 medium for 24 hours and assessed for cleavage to the two cells stage. MATERIALS AND METHODS: In this experimental study, germinal vesicle (GV) oocytes obtained from two-months-old NMRI mice were randomly divided into control, sham and three experimental groups. The basic culture medium was alpha MEM supplemented with 10% fetal bovine serum (FBS), 50 mg/l streptomycin, 60 mg/l penicillin and 10 ng/ ml epidermal growth factors. Each of the experimental groups received one of the following treatments: RA (2 MUM), bFGF (20 ng/ml) or combination of RA and bFGF with the indicated concentrations. After 24 hours, capacitated spermatozoa were added to in vitro matured oocytes. Five hours later, the oocytes were cultured in fresh droplets of M2 medium for 24 hours and assessed for cleavage to the two-cells stage. RESULTS: As compared with the control group, the rate of maturation was significantly increased in the RA (P<0.001) and bFGF+RA (P<0.02) groups with 58 +/- 10 and 57 +/- 3.46, respectively. The rate of maturation was significant in the RA (P<0.02) and bFGF+RA (P<0.03) groups, in comparison with the bFGF group. The bFGF+RA group had higher rate (83 +/- 1.52) of two-cells development, than control (33 +/- 1, P<0.001). CONCLUSION: Our findings showed beneficial effects of 2 MUM RA and 20 ng/ml bFGF combination on mouse oocyte IVM. PMID- 29334211 TI - Curcumin and Quercetin Ameliorated Cypermethrin and Deltamethrin-Induced Reproductive System Impairment in Male Wistar Rats by Upregulating The Activity of Pituitary-Gonadal Hormones and Steroidogenic Enzymes. AB - Background: Dietary antioxidants protect tissues and organs against insecticides/xenobiotic-induced damage. In the present study, we evaluated the results of exposure to synthetic pyrethroid insecticides, cypermethrin (Cyp) and deltamethrin (Del) and possible protective effects of curcumin and quercetin on reproductive system in male Wistar rats. MATERIALS AND METHODS: In this controlled experimental study, 42 male Wistar rats were randomly divided into 7 groups of 6 animals. Group A served as control, group B was exposed to Cyp (2 mg/kg.bw), group C was exposed to Del (2 mg/kg.bw), group D was exposed to Cyp+Del (2 mg/kg.bw each), group E was exposed to Cyp+Del and treated with curcumin (100 mg/kg.bw), group F was exposed to Cyp+Del and treated with quercetin (100 mg/kg.bw) and group G was exposed to Cyp+Del and treated with quercetin+curcumin for 45 days. RESULTS: Exposure to Cyp and Del caused decreases in reproductive organs weight, sperm count, sperm motility, level of sex hormones viz. testosterone (T), follicle stimulating hormone (FSH) and luteinizing hormone (LH), steroidogenic enzymes viz. 3beta-hydroxyl steroid dehydrogenase (3beta-HSD) and 17beta-HSD, non-enzymatic antioxidant glutathione (GSH) and enzymatic antioxidants viz. superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) activity and increases in sperm abnormalities and lipid peroxidation (LPO). The exposure also adversely affected the histo-achitecture of testes. Single and combined treatment with curcumin and quercetin significantly ameliorated Cyp and Del-induced damage in reproductive system. CONCLUSION: Curcumin and quercetin protected against Cyp and Del-induced reproductive system toxicity and oxidative damage in rats. The increases in activities of 3beta-HSD and 17beta-HSD with concomitant increases in testosterone were mainly responsible for ameliorating effects of curcumin and quercetin. Curcumin showed slightly better activity as compared to quercetin. The combination of both antioxidants offered more protection compared to each one alone. PMID- 29334212 TI - Comparison of The Efficacy and Safety of Palomo, Ivanissevich and Laparoscopic Varicocelectomy in Iranian Infertile Men with Palpable Varicocele. AB - Background: This study aimed to compare the effects of three commonly used varicocelectomy techniques namely, open retroperitoneal ligation (Palomo), open inguinal ligation (Ivanissevich) and laparoscopy, in Iranian infertile men. MATERIALS AND METHODS: This retrospective study was conducted on 70 infertile men with palpable varicocele who underwent one of the varicocelectomy techniques namely, Palomo, Ivanissevich, or laparoscopy. Basic information about semen parameters were collected and registered prior to the surgery. Three months after the surgery, semen parameters and surgical complications were investigated in all patients. RESULTS: The Palomo technique was significantly associated with fewer complications compared to other techniques (P=0.006). The means of sperm concentration, normal motility and normal morphology were significantly different among the three groups after surgery (P=0.025, 0.023 and 0.047, respectively). However, after adjustment for potential confounders, in addition to the baseline values of semen parameters, significant differences were observed only in sperm concentration among the groups (P=0.040). CONCLUSION: Varicocelectomy improved sperm parameters. The Ivanissevich technique was more effective in improving sperm concentration compared to the laparoscopic method. The lowest rates of complications were related to the Palomo technique. PMID- 29334213 TI - Conservative Management of Ovarian Fibroma in A Case of Gorlin-Goltz Syndrome Comorbid with Endometriosis. AB - Ovarian fibromas are the most common benign solid ovarian tumors, which are often difficult to diagnose preoperatively. Ovarian fibromas, especially in bilateral cases, may be cases of Gorlin-Goltz syndrome (GGS), a rare autosomal dominant disorder with predisposition to basal cell carcinomas (BCCs) and other various benign and malignant tumors. This case report describes a 25 year-old female with GGS, bilateral ovarian fibroma, endometriosis and septated uterus, which was referred to the Gynecology Clinic of Rasoul-e-Akram Hospital in October 2016. This patient had facial asymmetry due to recurrent odontogenic keratocysts. In young cases of ovarian fibromas as reported here, conservative surgical management can preserve ovarian function and fertility. These patients must be followed up by a multidisciplinary team and submitted to periodic tests. PMID- 29334214 TI - Quality of Life and Its Influencing Factors of Couples Referred to An Infertility Center in Shiraz, Iran. AB - In this article which was published in Int J Fertil Steril, Vol 11, No 4, Jan-Mar 2018, on pages 293-297, the "Duration of tducation (male)" was misspelled in Table 1. The corrected one is "Duration of education (male)". In the sentence "These differences might be related to the use of a fertility-specific instrument (FertiQoL) in the study by Huppelschoten et al. (23) and the current study compared to the general QoL assessment instrument by Chachamovich et al. (24) and Rashidi et al. (15)." Which was at the page of 296 in the discussion section, the word "generic" was corrected in to "general". PMID- 29334215 TI - A year in review in Minerva Anestesiologica 2017 Critical Care: experimental and clinical studies. PMID- 29334216 TI - Lysosome-Independent Intracellular Drug/Gene Codelivery by Lipoprotein-Derived Nanovector for Synergistic Apoptosis-Inducing Cancer-Targeted Therapy. AB - In this paper, reconstituted high-density lipoprotein (rHDL), a lipoprotein derived nanovector, was constructed for codelivery of paclitaxel (PTX) and wild type p53 gene (p53). The particle size and the zeta potential of PTX-DODAB/p53 rHDL nanoparticles were 177.2 nm and -20.06 mV, respectively. Meanwhile, they exhibited great serum stability and satisfactory sustained release characteristics in vitro. PTX-DODAB/pDNA-rHDL nanoparticles simultaneously improved the cellular uptake of PTX and pDNA via scavenger receptor B type I (SR BI) mediated lysosome-independent internalization and promoted the transfection of pDNA in MCF-7 cells, which were revealed by flow cytometry and confocal laser scanning microscopy analyses. The high p53 protein expression in MCF-7 cells after rHDL-mediated transfection was detected by Western blotting assay. Moreover, PTX-DODAB/p53-rHDL nanoparticles showed superior cytotoxicity and significantly induced apoptosis in SR-BI overexpressed MCF-7 cells. In in vivo studies, PTX-DODAB/p53-rHDL nanoparticles without obvious toxic effects to vessels, blood, or major organs exhibited efficient tumor targeting and encouraging antitumor effects on tumor-bearing nude mice compared with controls. All the results above indicated that PTX-DODAB/p53-rHDL nanoparticles held broad prospects in combination of chemotherapeutics and gene therapeutic agents for cancer-targeted therapy. PMID- 29334218 TI - Photochemically Induced Intramolecular Radical Cyclization Reactions with Imines. AB - The photochemically induced intramolecular hydrogen abstraction or hydrogen atom transfer in cyclic imines 8a,b followed by a cyclization is investigated. Two types of products are observed, one resulting from the formation of a C-C bond, the other from the formation of a C-N bond. A computational study reveals that hydrogen is exclusively transferred to the imine nitrogen leading to a triplet diradical intermediate. After intersystem crossing, the resulting zwitterionic intermediate undergoes cyclization leading to the final product. PMID- 29334217 TI - Characterization of an Hsp90-Independent Interaction between Co-Chaperone p23 and Transcription Factor p53. AB - Cancer-suppressing transcription factor p53 is regulated by a wide variety of cellular factors, including many chaperones. The DNA-binding domain (DBD) of p53 is known to interact with the chaperone Hsp90, but the role of other members of the chaperone network, including co-chaperones such as p23, is unknown. Using a combination of nuclear magnetic resonance (NMR) titration, isothermal titration calorimetry, fluorescence anisotropy, and native agarose gel electrophoresis, we have identified a direct interaction between the p53 DBD and Hsp90 co-chaperone p23 that occurs in the absence of Hsp90. The affinity is relatively weak and largely determined by electrostatic interactions between the acidic C-terminal disordered tail of p23 and the two DNA-binding regions of the p53 DBD. We show by NMR and native agarose gel electrophoresis that a p53-specific double-stranded DNA sequence competes successfully with p23 for binding to the p53 DBD. The Hsp90 independence of the interaction between p23 and p53 DBD, together with the competition of p23 versus DNA for p53, raises the intriguing possibility that p23, like other small charged proteins, may affect p53 in hitherto unknown ways. PMID- 29334219 TI - Mussel-Inspired Conductive Polymer Binder for Si-Alloy Anode in Lithium-Ion Batteries. AB - The excessive volume changes during cell cycling of Si-based anode in lithium ion batteries impeded its application. One major reason for the cell failure is particle isolation during volume shrinkage in delithiation process, which makes strong adhesion between polymer binder and anode active material particles a highly desirable property. Here, a biomimetic side-chain conductive polymer incorporating catechol, a key adhesive component of the mussel holdfast protein, was synthesized. Atomic force microscopy-based single-molecule force measurements of mussel-inspired conductive polymer binder contacting a silica surface revealed a similar adhesion toward substrate when compared with an effective Si anode binder, homo-poly(acrylic acid), with the added benefit of being electronically conductive. Electrochemical experiments showed a very stable cycling of Si-alloy anodes realized via this biomimetic conducting polymer binder, leading to a high loading Si anode with a good rate performance. We attribute the ability of the Si based anode to tolerate the volume changes during cycling to the excellent mechanical integrity afforded by the strong interfacial adhesion of the biomimetic conducting polymer. PMID- 29334220 TI - Computational Design, Synthesis, and Structure Property Evaluation of 1,3 Thiazole-Based Color-Tunable Multi-heterocyclic Small Organic Fluorophores as Multifunctional Molecular Materials. AB - Probing the chemical space of luminescent organic materials built on novel cores is highly imperative for its potential to expand the horizons of advanced functional materials. Small organic fluorophores possessing therapeutic traits can contribute to theranostics. We coupled computational and classical synthetic chemistry strategies for the rational design of 5-(hetero-2-yl)-1,3-thiazoles as color-tunable fluorophore core. With the aid of DFT and TD-DFT, we prove that the multi-heterocyclic system is built on a thiazole-het core with three inherent tunable sites on thiazole (C2, C4, and C5) capable of accommodating a panoply of substituents as a multifunctional molecular materials' platform. This de novo design offered unprecedented freedom to control strength and direction of charge transfer by varying donor-acceptor fragments. A 30-member fluorophore library built on thiazole-thiophene/furan core was accomplished using commercial reagents by a simple [4 + 1] synthesis. Structure-photophysical property studies revealed large Stokes shift, positive solvatochromism, acidochromism, and color tunability in different solvents and were rationalized using computational calculations. In vitro studies indicated 1a to be active against HL-60 cell lines, suggesting the possibility of expanding the core for theranostics. The lower values of computed hole reorganization energies indicated their potential as hole transporting materials in optoelectronics and widen the scope of these molecules as advanced functional materials. PMID- 29334222 TI - Online Preconcentration in Capillaries by Multiple Large-Volume Sample Stacking: An Alternative to Immunoassays for Quantification of Amyloid Beta Peptides Biomarkers in Cerebrospinal Fluid. AB - A novel electrokinetic preconcentration approach, so-called multiple pressure assisted large-volume sample stacking with an electroosmotic flow pump (M-PA LVSEP), was developed to allow in-capillary enrichment and separation of analytes from unlimited sample volumes. With this approach, the inherent limitation of in capillary electrokinetic preconcentrations to the separation capillary volume can be overcome. The M-PA-LVSEP protocol relies on repeated cycles of pressure assisted electroosmotic pumping and injection of extremely large sample volumes for analyte stacking and sample matrix removal. This technique was developed to address the challenge of sensitive and simultaneous determination of several amyloid beta (Abeta) peptides, which are biomarkers for the molecular diagnosis of Alzheimer's disease (AD). For the first time, reliable quantification of different species of fluorescently derivatized Abeta peptides, that is, Abeta 1 42, Abeta 1-40, and Abeta 1-38 down to subnanomolar ranges in cerebrospinal fluids (CSF) from AD and non-demented patients (healthy controls) was made possible without recourse to immunoassay, immunoprecipitation, or mass spectrometry approaches. Based on the stacking from a sample plug representing up to 400% of the total capillary volume, sensitive enhancement factors up to 170 could be achieved with this "antibody free" approach. Quantification limits for these Abeta peptides down to 0.05 nM with capillary electrophoresis coupled with laser-induced fluorescent detection could be obtained. Excellent agreement between results from M-PA-LVSEP and the gold standard ELISA method was achieved for measurements of Abeta 1-42 in CSF, with a determination correlation (r2) better than 0.993. PMID- 29334221 TI - Extracellular Enzyme Composition and Functional Characteristics of Aspergillus niger An-76 Induced by Food Processing Byproducts and Based on Integrated Functional Omics. AB - Byproducts of food processing can be utilized for the production of high-value added enzyme cocktails. In this study, we utilized integrated functional omics technology to analyze composition and functional characteristics of extracellular enzymes produced by Aspergillus niger grown on food processing byproducts. The results showed that oligosaccharides constituted by arabinose, xylose, and glucose in wheat bran were able to efficiently induce the production of extracellular enzymes of A. niger. Compared with other substrates, wheat bran was more effective at inducing the secretion of beta-glucosidases from GH1 and GH3 families, as well as >50% of proteases from A1-family aspartic proteases. Compared with proteins induced by single wheat bran or soybean dregs, the protein yield induced by their mixture was doubled, and the time required to reach peak enzyme activity was shortened by 25%. This study provided a technical platform for the complex formulation of various substrates and functional analysis of extracellular enzymes. PMID- 29334223 TI - A Novel Color Modulation Analysis Strategy through Tunable Multiband Laser for Nanoparticle Identification and Evaluation. AB - Creating color difference and improving the color resolution in digital imaging is crucial for better application of color analysis. Herein, a novel color modulation analysis strategy was developed by using a homemade tunable multiband laser illumination device, in which the portions of R, G, and B components of the illumination light are discretionarily adjustable, and hence the sample color could be visually modulated continuously in the RGB color space. Through this strategy, the color appearance of single gold nanorods (AuNRs) under dark-field microscopy was migrated from the spectrally insensitive red region to the spectrally sensitive green-yellow region. Unlike the traditional continuous-wave light source illumination, wherein the small spectral variations in the samples within a narrow spectral range are averaged by the whole spectrum of the light source, leading to little color difference, the application of sharp, multiband laser illumination could enlarge the color separation between samples, thus resulting in high spectral sensitivity in color analysis. By comparing the corresponding color evolution processes of different samples as the multiband combination of the laser illumination was changed, more efficient color separation of AuNRs was achieved. With this instrument and single Ag@AuNRs as the sulfide probe, we achieved high throughput and highly sensitive detection of sulfide at a detection limit of 0.1 nM, a more than 2 orders of magnitude improvement compared to the previous color sensing scheme. This strategy could be utilized for nanoparticle identification, evaluation, and determination in biological imaging and biochemical analysis. PMID- 29334224 TI - Diversity-Oriented Approach to N-Heterocyclic Compounds from alpha-Phenyl-beta enamino Ester via a Mitsunobu-Michael Reaction Sequence. AB - Herein we delineate a novel route for the diastereoselective construction of diversely substituted N-heterocyclic ring systems as valuable scaffolds for natural products and pharmaceuticals, starting from an easily accessible prochiral alpha-phenyl-beta-enamino ester. The reaction sequence relies on the unexplored reactivity of alpha-phenyl-beta-enamino ester as a nucleophilic partner in the Mitsunobu reaction to forge the N-tethered alkene alcohol/thiol/amine intermediate, which was subjected to an intramolecular hetero Michael addition reaction under mild conditions to furnish the respective N heterocyclic compounds embedded with an exocyclic chiral center in high yields and excellent diastereoselectivities. The methodology is amenable for a broad range of substrates based on a metal-free approach. PMID- 29334225 TI - Fate of Poly(3-octylthiophene) Transducer in Solid Contact Ion-Selective Electrodes. AB - An experimental approach allowing visualization and quantification of the underestimated spontaneous process of partition of conducting polymer transducer material to the ion-selective membrane phase is proposed. The approach proposed is based on optical properties of the transducer material applied, using polythiophene as a model system. It is shown that this process occurs not only during the sensor preparation step but also during pretreatment of the sensor before use. As shown, this uncontrolled partition of the transducer to the receptor leads to conducting polymer contents in the membrane phase reaching 0.5% w/w; this process is accompanied by a partial spontaneous change of the oxidation state of polythiophene. The conducting polymer present in the membrane participates to some extent in the overall response of the sensor, which can be observed as a change in the polythiophene optical emission spectra. Fluorescence microscopic images obtained clearly show that the conducting polymer is distributed throughout the membrane thickness, being present also at the membrane/solution interface. The experimental results presented were obtained for K+-selective sensors using poly(3-octylthiophene) as a model transducer; however, the proposed approach is also applicable for other systems. PMID- 29334226 TI - Ethnic youth and sexual identity: the role of clinical and social support for 'double minorities'. AB - OBJECTIVES: Sexual-minority youth exhibit increased rates of psychiatric morbidity, subject to various social factors. We examine the impact of ethnicity and culture on these phenomena, with particular reference to Asian youth living in Western societies. CONCLUSIONS: Youth from minority ethnic groups who do not identify with their native gender and/or who are not exclusively heterosexual are known as 'double minorities'. Available evidence suggests that such individuals are at particularly increased risk of depression and suicide, but that this may be mitigated by social support. More research is needed to understand the challenges faced by 'double minorities', notably their perception of and ability to access available clinical and social supports. PMID- 29334227 TI - Using a television documentary to prevent suicide in men and boys. AB - OBJECTIVES: We investigated whether a documentary about masculinity and suicidality ( Man Up) could raise males' awareness of societal pressures to conform to masculine norms and influence their likelihood of connecting with their male friends and seeking help. METHODS: We conducted a repeat cross sectional survey, posting versions of the survey online before and after Man Up was screened. RESULTS: 1287 male respondents completed the survey; 476 completed the pre-screening survey, 811 the post-screening survey (192 had not viewed Man Up, 619 had). Those who had viewed Man Up were more likely to desire closer relationships with their male friends than those who had not, and had greater awareness of societal pressures on males, but were no more likely to seek help. Almost all respondents who saw Man Up indicated they would recommend it to others, and most said it changed the way they thought about the term 'man up'. They indicated they would be likely to undertake a number of adaptive actions following the show, and provided overwhelmingly positive feedback. CONCLUSIONS: Man Up appeared to effectively address factors that place males at heightened risk of suicide. PMID- 29334228 TI - Use of ECT in the presence of acute bilateral posterior vitreous detachmanet. AB - OBJECTIVES: We describe a case of acute bilateral posterior vitreous detachment (PVD) in a 71-year-old female, which developed during a course of electroconvulsive therapy (ECT) for treatment-resistant depression. The risks and benefits of continuing ECT were assessed and the patient completed the full course of 16 ECT treatments without further ophthalmic complications. CONCLUSIONS: As the incidence of PVD increases with age, and ECT is used more frequently in elderly people with depression, we recommend paying attention to ophthalmic symptoms as part of the routine clinical monitoring of ECT side effects. If ophthalmic symptoms occur, the risks and benefits of ECT need to be weighed up including consultation with an ophthalmologist. PMID- 29334229 TI - Physical and psychological health of carers of young people with first episode psychosis. AB - OBJECTIVE: Carers of people with psychosis may experience psychological distress and caregiving burden. However, few studies have examined both psychological and physical health of carers of young people with first episode psychosis (FEP). METHOD: A total of 32 young people with FEP and 42 of their carers were recruited from a mental health service. Standardised scales were administered to assess carers' psychological distress and risk for development of Type 2 diabetes. Their body mass index, waist circumference and blood pressure were measured. RESULTS: A total of 24% ( n = 10) of carers experienced high/very high psychological distress and 39.0% ( n = 16) had high risk for Type 2 diabetes. It was common for carers to be overweight ( n = 33, 78.6%) and to have hypertension ( n = 14, 33.3%). Carers' higher levels of psychological distress were associated with shorter duration of illness in the young person. CONCLUSIONS: Caring for a young person with FEP is associated with poor physical and psychological health. Findings show the importance of supporting carers' physical and psychological health early in treatment of young people with FEP. PMID- 29334230 TI - DNA methylation changes and evolution of RNA-based duplication in Sus scrofa: based on a two-step strategy. AB - AIM: This study aims to couple DNA methylation changes and evolution of retrogenes. MATERIALS & METHODS: A new two-step strategy was developed to screen retrogenes. Further, reduced representation bisulfite sequencing and RNA-seq data of eight tissues were used to analyze retrogenes. RESULTS: A total of 964 retrocopies were identified and new retrocopies were available for the synthesis of glycans and lipids corresponding to pig phenotypic traits. Retrogenes were consistently hypermethylated. Hypomethylation of parental genes presented more susceptibility to retroposition. Promoter DNA methylation of retrogenes was negatively correlated with evolutionary time and played important roles in regulating retrogene tissue-specific expression pattern. CONCLUSION: A two-step procedure is effective and necessary for identifying retrogenes. DNA methylation drives origination, survival, evolution and expression of retrogenes. PMID- 29334231 TI - Social capital and PTSD among PLWHA in China: the mediating role of resilience and internalized stigma. AB - Post-traumatic Stress Disorder (PTSD) is frequent among people living with HIV/AIDS (PLWHA). Few studies have investigated social-psychological predictors of PTSD in China. This study aimed to examine relationships between social capital, stigma, resilience and PTSD among PLWHA in China, and to provide effective suggestions for PTSD intervention. A cross-sectional study of 520 PLWHA was conducted from November 2015 to January 2016. Survey data were collected using anonymous self-reported questionnaire. Multivariable analyses were used to examine related factors of PTSD, and causal mediation analyses were conducted to assess whether stigma and resilience were mediators. Results indicated that higher risk of PTSD was independent associated with stronger stigma, decreasing social capital and lower resilience. There was an indirect relationship of social capital on PTSD mediated through resilience and HIV-related stigma. Therefore, PTSD intervention programs should not only pay attention to the role of social capital on PTSD, but also attach importance to stigma and resilience on PTSD symptoms. PMID- 29334232 TI - Stereotactic body radiation therapy (SBRT) for hepatocellular carcinoma: imaging evaluation post treatment. AB - Surgical resection, when feasible, is the standard of care for hepatocellular carcinoma. However, many tumours are not resectable at the time of diagnosis. Recently, stereotactic body radiation therapy (SBRT) has emerged as a non invasive local therapy for both non-resectable primary hepatic malignancies as well as hepatic metastases. Knowledge of the expected hepatic parenchymal appearance post treatment, as well as potential pitfalls and complications, is essential for accurate evaluation of treatment response. This pictorial review provides a fundamental description of the SBRT technique, outlines the expected cross-sectional imaging appearances of tumour response, and highlights potential pitfalls in interpretation. The expected liver parenchymal changes post-SBRT are also reviewed, along with some common radiation-induced complications. PMID- 29334233 TI - Perceived discrimination and mental health among older African Americans: the role of psychological well-being. AB - OBJECTIVES: Examine the effect of perceived discrimination (both racial and non racial) on the mental health of older African Americans and explore the buffering role of psychological well-being (purpose in life and self-acceptance). METHODS: Using an older African American subsample from the National Health Measurement Study (n = 397), multiple regression model by gender was used to estimate the effects of two types of discrimination (every day and lifetime) on SF-36 mental component and mediating role of two concepts of psychological well-being. RESULTS: With no gender difference on the everyday discrimination, older men experienced more lifetime discrimination than older women. The older men's model found that the depressive symptomology was significantly explained by only everyday discrimination and mediated by self-acceptance. The older women's model was significant, with everyday discrimination and both self-acceptance and purpose in life emerging as mediating variables. DISCUSSION: The prevalence of institutional lifetime discrimination for older African American men is consistent with previous research. Inconsistency with past research indicated that only everyday discrimination is statistically associated with depressive symptoms. Considering the buffering role of psychological well-being served for mental health problems, practitioners need to emphasize these factors when providing services to older African Americans. Equally important, they must address racial discrimination in mental health care settings. PMID- 29334234 TI - Is there an association between severity of illness and psychiatric symptoms in patients with chronic renal failure? AB - Chronic renal failure (CRF) is a frequent condition in elderly subjects, and it is associated with psychiatric comorbidity, especially depressive symptoms. Purpose of the present research was to compare patients with different severity of chronic kidney disease (CKD) in terms of psychiatric symptoms. One hundred CKD subjects were randomly selected among those attending the Department of Nephrology, University of Milan. The patients were evaluated through the following rating scales: Mini-Mental State Examination (MMSE), Beck Depression Inventory (BDI), Symptom Checklist (SCL-90), Kidney Disease Quality of Life- Short Form (KDQOL-SF) and Cumulative Illness Rating Scale (CIRS). A multivariable linear regression analysis was performed considering eGFR as continuous-dependent variable and rating scale scores as independent variables. A worse eGFR significantly correlated with the score about the effects of kidney disease on daily life (r = 0.25, p = 0.01) and the burden of kidney disease (r = 0.18, p = 0.05). Statistical significance of kidney disease on daily life persisted also in the final multivariate model (t = 2.04, p = 0.04). Severity of renal dysfunction seems to influence few psychiatric outcomes, particularly those related to quality of life and daily functioning. This result might depend on the over worrying derived from the necessity to start a renal replacement therapy in the near future. PMID- 29334235 TI - Impact of an assertive community treatment model of care on the treatment of prisoners with a serious mental illness. AB - OBJECTIVES: This study aims to describe the impact of a mental health assertive community treatment prison model of care (PMOC) on improving the ability to identify prisoner needs, provide interventions and monitor their efficacy. METHODS: We carried out a file review across five prisons of referrals in the year before the implementation of the PMOC in 2010 ( n = 423) compared with referrals in the year after ( n = 477). RESULTS: Some improvements in the identification of needs and providing interventions were detected. There was increased use of medication management and clinically significant improvement in addressing engagement with families. Monthly multi-disciplinary team face-to-face contact improved. CONCLUSIONS: Meeting the needs of mentally ill prisoners is challenged by the complexity of the custodial environment. Improvements made resulted from changing the model of care, rather than adding new resources. PMID- 29334236 TI - Whole Body MRI and oncology: recent major advances. AB - MRI is a very attractive approach for tumour detection and oncological staging with its absence of ionizing radiation, high soft tissue contrast and spatial resolution. Less than 10 years ago the use of Whole Body MRI (WB-MRI) protocols was uncommon due to many limitations, such as the forbidding acquisition times and limited availability. This decade has marked substantial progress in WB-MRI protocols. This very promising technique is rapidly arising from the research world and is becoming a commonly used examination for tumour detection due to recent technological developments and validation of WB-MRI by multiple studies and consensus papers. As a result, WB-MRI is progressively proposed by radiologists as an efficient examination for an expanding range of indications. As the spectrum of its uses becomes wider, radiologists will soon be confronted with the challenges of this technique and be urged to be trained in order to accurately read and report these examinations. The aim of this review is to summarize the validated indications of WB-MRI and present an overview of its most recent advances. This paper will briefly discuss how this examination is performed and which are the recommended sequences along with the future perspectives in the field. PMID- 29334237 TI - Safety of working patterns among UK neuroradiologists: what can we learn from the aviation industry and cognitive science? AB - As the volume and complexity of imaging in the UK continues to rise, there is pressure on radiologists to spend increasing lengths of time reporting to cope with the growing workload. However, there is limited guidance for radiologists about structuring the working day to strike the necessary balance between achieving satisfactory reporting volume and maintaining quality and safety. We surveyed 86 neuroradiologists (receiving 59 responses), regarding time spent reporting, frequency and duration of work breaks, and break activities. Our results demonstrate that some neuroradiologists report for up to 12 h a day and for 4 h before taking a break. Mean duration of breaks is less than 15 min and these often consist of computer screen-based or cognitively demanding tasks. Many areas of medicine have looked to the aviation industry to develop improvements in safety through regulated, standardised practices. There are parallels between the work of air traffic controllers (ATCs) and radiologists. We review the legislation that controls the working hours of UK ATCs to minimise fatigue related errors, and its scientific basis. We also consider the vigilance decrement, a concept in cognitive science which describes the reduction in performance with increasing time-on-task. We conclude that, in comparison with ATCs, work patterns among radiologists are poorly standardised and potentially dangerous. Evidence suggests that placing limits on reporting time and minimum break duration, as well as ensuring appropriate break activities, can benefit reporting quality. It is imperative that radiologists and managers heed these lessons, to improve standards and protect patients from error. PMID- 29334238 TI - Chemical constituents from the flowers of Satsuma mandarin and their free radical scavenging and alpha-glucosidase inhibitory activities. AB - Flowers of Citrus plants are used as mild sedatives and for the treatment of insomnia in traditional medicines. In Japan, tea made from the flowers of Satsuma mandarin is consumed as healthy drink. Hesperidin (1), hesperetin (2), rutin (3), quercetin (4), nicotiflorin (5), eriocitrin (6), narirutin (7), phenylethyl glucoside (8) and unshuoside A (9) were isolated from the MeOH extract of fresh flowers. Structure elucidation of these compounds was performed on the basis of NMR spectroscopic data. Among them, rutin (3), quercetin (4) and eriocitrin (6) showed potent free radical scavenging activity, whereas hesperetin (2) and quercetin (4) showed potent alpha-glucosidase inhibitory activity. PMID- 29334239 TI - Antimicrobial and antiquorum-sensing activity of Ricinus communis extracts and ricinine derivatives. AB - Ricinine (1), a known major alkaloid in Ricinus communis plant, was used as a starting compound for the synthesis of six ricinine derivatives; two new and four known compounds. The new derivatives; 3-amino-5-methyl-1H-pyrazolo[4,3-c]pyridin 4(5H)-one (2), and 3-amino-5-methyl-1-(phenylsulfonyl)-1H-pyrazolo[4,3-c]pyridin 4(5H)-one (3), as well as the previously prepared derivatives (4-7) were subjected for antimicrobial and antiquorum-sensing evaluation in comparison to different R. communis extracts. Acetyl ricininic acid derivative (5) showed the highest antimicrobial activity among all tested derivatives against Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Pseudomonas aeuroginosa and Candida albicans. However, compound 7 (4-methoxy-1-methyl-2-oxo 1,2-dihydropyridine-3-carboxamide) showed the highest antiquorum-sensing activity among all tested compounds and extracts. These findings proved the usefulness of ricinine as a good scaffold for the synthesis of new antimicrobial and antiquorum sensing derivatives in spite of its poor contribution to the antimicrobial activity of the plant extracts. PMID- 29334240 TI - New method for estimating arterial pulse wave velocity at single site. AB - The clinical importance of measuring local pulse wave velocity (PWV), has encouraged researchers to develop several local methods to estimate it. In this work, we proposed a new method, the sum-of-squares method [Formula: see text], that allows the estimations of PWV by using simultaneous measurements of blood pressure (P) and arterial diameter (D) at single-location. Pulse waveforms generated by: (1) two-dimensional (2D) fluid-structure interaction simulation (FSI) in a compliant tube, (2) one-dimensional (1D) model of 55 larger human systemic arteries and (3) experimental data were used to validate the new formula and evaluate several classical methods. The performance of the proposed method was assessed by comparing its results to theoretical PWV calculated from the parameters of the model and/or to PWV estimated by several classical methods. It was found that values of PWV obtained by the developed method [Formula: see text] are in good agreement with theoretical ones and with those calculated by PA-loop and D2P-loop. The difference between the PWV calculated by [Formula: see text] and PA-loop does not exceed 1% when data from simulations are used, 3% when in vitro data are used and 5% when in vivo data are used. In addition, this study suggests that estimated PWV from arterial pressure and diameter waveforms provide correct values while methods that require flow rate (Q) and velocity (U) overestimate or underestimate PWV. PMID- 29334241 TI - Transcriptional regulation on the gene expression signature in combined allergic rhinitis and asthma syndrome. AB - AIM: This study was intended to evaluate transcriptional regulation of gene expression signatures in combined allergic rhinitis and asthma syndrome (CARAS). MATERIALS & METHODS: The blood samples of three patients with CARAS, three patients with allergic rhinitis and three normal controls were obtained. The cuffdiff, miRDeep2 and DEGseq were used to quantify the expression of genes and miRNAs, respectively. And p-value < 0.01 and false discovery rate < 0.001 were considered as significant differences of genes and miRNAs, respectively. Gene ontology and the Kyoto Encyclopedia of Genes and Genomes were used to analyze the biological function. And the cut-off value for significance was p < 0.05. RESULTS: SLC14A1, SNCA, TNS1, KAT2B and PARP1 were regulated by hsa-miR-93-5p, hsa-miR-92a-3p and hsa-miR-21-5p. Additionally, phagosome (p = 0.00627769839083361) was the only significantly enriched signal pathway involving HLA-DOA, TUBB2A and MRC2. CONCLUSION: Disordered expression of genes under the regulation of miRNAs may play an important role in CARAS. PMID- 29334242 TI - Development and disease in a dish: the epigenetics of neurodevelopmental disorders. AB - Human neurodevelopmental disorders (NDDs) involve mutations in hundreds of individual genes, with over-representation in genes encoding proteins that alter chromatin structure to modulate gene expression. Here, we highlight efforts to model these NDDs through in vitro differentiation of patient-specific induced pluripotent stem cells into neurons. We discuss how epigenetic regulation controls normal cortical development, how mutations in several classes of epigenetic regulators contribute to NDDs, and approaches for modeling cortical development and function using both directed differentiation and formation of cerebral organoids. We explore successful applications of these models to study both syndromic and nonsyndromic NDDs and to define convergent mechanisms, addressing both the potential and challenges of using this approach to define cellular and molecular mechanisms that underlie NDDs. PMID- 29334243 TI - Facile synthesis of simple 2-oxindole-based compounds with promising antiproliferative activity. AB - AIM: Discovery of novel potent anticancer agents with lower side effects is a challenge to overcome cancer, the second leading cause of death. METHODOLOGY: 2 oxindole-based hydrazides (6a-g) and benzenesulfonyl hydrazides (9a-d) were synthesized by simple condensation reactions of the appropriate hydrazides (2a-g) or (8a-d) with 1-ethyl-2,3-oxindolinedione (4). They were screened for their cytotoxicity against HepG2 (liver), MCF-7 (breast), HCT116 (colon) and A549 (lung) cancer cell lines. RESULTS: The substituted benzohydrazides (6b-g) revealed higher activity and selectivity toward the tested cell lines than doxorubicin and 9a-d. Compound 6c exhibited the highest activity against MCF-7 cell line with IC50 = 0.0058 MUM and it induced apoptosis by caspase-3 activation, Bax upregulation and Bcl-2 downregulation in a dose-dependent manner. CONCLUSION: This compound can be considered as a potent cytotoxic agent with apoptotic induction property. PMID- 29334244 TI - Evolving concepts and use of immunohistochemical biomarkers in flat non neoplastic urothelial lesions: WHO 2016 classification update with diagnostic algorithm. AB - CONTEXT: The classification of flat non-neoplastic urothelial lesions has been evolved through the years in the attempt to better define a spectrum of morphologic entities with somewhat overlapping features. Differentiating these lesions is important because of differences in patient management and clinical outcome. Materials and methods and objective: A systematic review of the literature has been carried out in order to (1) assess the most striking clinical features of each lesion and (2) identify those morphological traits and immunophenotypical markers which may aid in the differential diagnosis. RESULTS AND CONCLUSION: Our results point out the importance of a proper definition of flat non-neoplastic urothelial lesions in order to predict clinical behaviour and allow tailored patient management; therefore, we attempted to construct a novel and "easy to use" algorithm for a clear, standardized and evidence-based pathological diagnosis. PMID- 29334245 TI - Steroids from herbs of Reineckia carnea and their anticomplement activities. AB - A new polyhydroxylated pregnane, named lbeta,2beta,3beta,4beta,5beta,6beta hexolhydroxy-pregn-16-en-20-one (1), along with nine known (2-10) steroidal saponins were isolated from the whole plant of Reineckia carnea. Structure elucidations of all compounds were established by interpretation of their NMR spectral data, HR-ESI-MS and comparing with literatures. In addition, these compounds were evaluated with anticomplement activity. The result showed that compound 1 exhibited anticomplement effects with the CH50 values of 0.043 mg/mL, but saponins (2-10) showed no inhibition. Interestingly, hydrolysis of steroidal saponins (2-10) resulted in its aglycones (2a-10a) correspondingly which showed anticomplement activity with the CH50 values of 0.049-0.156 mg/mL. PMID- 29334246 TI - Screening of north-east Mexico medicinal plants with activities against herpes simplex virus and human cancer cell line. AB - The plants examined in this study have previous biological activity reports indicating the possibility of found activity against herpes and cancer cell. The aim of this contribution was to carry out a screening of Juglans mollis (Juglandaceae), Persea americana (Lauraceae), Hamelia patens (Rubiaceae), Salvia texana (Lamiaceae), Salvia ballotaeflora (Lamiaceae), Ceanothus coeruleus (Rhamnaceae), Chrysactinia mexicana (Asteraceae) y Clematis drummondii (Ranunculaceae), against HeLa cells, VHS-1 and VHS-2. The method MTT was used to determine the 50% cytotoxic concentration (CC50), in Vero and HeLa cell lines. To determine the 50% inhibitory concentration (IC50) against herpes, the plaque reduction method was used. Results showed that none of the plants exhibited activity against HeLa cells. About antiherpetic activity, J. mollis and S. ballotaeflora extracts present antiherpetic activity in terms of their SI, increasingly interest for further studies on the isolation of compounds with antiherpetic activity and about the mechanisms of action that produce this activity. PMID- 29334247 TI - Development of fisetin-loaded folate functionalized pluronic micelles for breast cancer targeting. AB - The natural flavonoid fisetin (FS) has shown anticancer properties but its in vivo administration remains challenging due to its poor aqueous solubility. The aim of the study was to develop FS loaded pluronic127 (PF)-folic acid (FA) conjugated micelles (FS-PF-FA) by the way of increasing solubility, bioavailability and active targetability of FS shall increase its therapeutic efficacy. FA-conjugated PF was prepared by carbodiimide crosslinker chemistry. FS PF-FA micelles were prepared by thin-film hydration method and evaluated in comparison with free FS and FS loaded PF micelles (FS-PF). The smooth surfaces with spherical in shape of FS-PF-PF micelles displayed smaller in size (103.2 +/- 6.1 nm), good encapsulation efficiency (82.50 +/- 1.78%), zeta potential (-26.7 +/- 0.44 mV) and sustained FS release. Bioavailability of FS from FS-PF-PF micelles was increased by 6-fold with long circulation time, slower plasma elimination and no sign of tissue toxicity as compared to free FS. Further, the FS-PF-FA micelles demonstrated active targeting effect on folate overexpressed human breast cancer MCF-7 cells. The concentration of the drug needed for growth inhibition of 50% of cells in a designed time period (GI50) was 14.3 +/- 1.2 ug/ml for FS while it was greatly decreased to 9.8 +/- 0.78 ug/ml, i.e. a 31.46% decrease for the FS-PF. Furthermore, the GI50 value for FS-PF-FA was 4.9 +/- 0.4 ug/ml, i.e. a 65.737% decrease compared to FS and 50% decrease compare to FS-PF. The results indicate that the FS-PF-FA micelles have the potential to be applied for targeting anticancer drug delivery. PMID- 29334248 TI - Nigrosporanenes C and D, two new cyclohexene derivatives from the enphytic fungus Nigrospora oryzae S4. AB - Two new cyclohexene derivatives, nigrosporanenes C and D (1 and 2), together with three known compounds (3-5), were isolated from the culture of an endophyte Nigrospora oryzae S4. Their structures were characterized by a combination of detailed spectroscopic analysis and comparison of their NMR data with those reported in the literature. All compounds were tested for anti-phytopathogenic activity, however, none of them showed activity at a concentration of 20 MUM. PMID- 29334250 TI - Estimation of a Latent Variable Regression Growth Curve Model for Individuals Cross-Classified by Clusters. AB - The cross-classified multiple membership latent variable regression (CCMM-LVR) model is a recent extension to the three-level latent variable regression (HM3 LVR) model which can be utilized for longitudinal data that contains individuals who changed clusters over time (for instance, student mobility across schools). The HM3-LVR model can include the initial status on growth effect as varying across those clusters and allows testing of more flexible hypotheses about the influence of initial status on growth and of factors that might impact that relationship, but only in the presence of pure clustering of participants within higher-level units. This Monte Carlo study was conducted to evaluate model estimation under a variety of conditions and to measure the impact of ignoring cross-classified data when estimating the incorrectly specified HM3-LVR model in a scenario in which true values for parameters are known. Furthermore, results from a real-data analysis were used to inform the design of the simulation. Overall, it would be recommended for researchers to utilize the CCMM-LVR model over the HM3-LVR model when individuals are cross-classified, and to use a bare minimum of more than 100 clustering units in order to avoid overestimation of the level-3 variance component estimates. PMID- 29334249 TI - Antimicrobial activity of 1,3,4-oxadiazole derivatives against planktonic cells and biofilm of Staphylococcus aureus. AB - AIM: Staphylococcus aureus is a major cause of severe hospital-acquired infections, and biofilm formation is an important part of staphylococcal pathogenesis. Therefore, developing new antimicrobial agents against both planktonic cells and biofilm of S. aureus is a major challenge. RESULTS: Three 1,3,4-oxadiazole derivatives exhibited antimicrobial activity against seven S. aureus strains in vitro, with minimum inhibitory concentrations ranging from 4 to 32 MUg/ml. At 4 * minimum inhibitory concentration, all compounds killed cells within 24 h, demonstrating bactericidal activity. In addition to their effects against planktonic cells, these compounds prevented biofilm formation in a dose dependent manner, with inhibitory concentrations for biofilm formation ranging from 8 to 32 MUg/ml. Interestingly, higher concentrations of these compounds were effective against mature biofilms and all compounds downregulated the transcription of the biofilm-related gene spa. CONCLUSION: We report three new 1,3,4-oxadiazole derivatives that have bactericidal activity and could provide as alternatives to combat S. aureus. PMID- 29334251 TI - Discussing edaravone with the ALS patient: an ethical framework from a U.S. perspective. AB - The recent approval of edaravone by the United States Food and Drug Administration has generated a mix of hope tempered by reality. The costs of the drug, both monetarily and with regard to intensity of treatment, are high. The benefits, while modest, will be viewed through a very different lens by individuals depending on their goals of care. By virtue of our training and experience, physicians are ideally suited to understand and explain new treatments to our patients. As healthcare providers with a fiduciary responsibility to our patients, we must make sure they are fully informed about both the costs and benefits of non-curative therapies such as edaravone, and be prepared to discuss these in the context of their goals of care and potential impact on quality of life. Respect for our patients' autonomy is critical when discussing these issues, but we should always be guided by the ethical principles of beneficence and non-maleficence. PMID- 29334252 TI - Impact of paternal nutrition on epigenetic patterns. PMID- 29334253 TI - Circular RNA expression in extracellular vesicles isolated from serum of patients with endometrial cancer. AB - AIM: We aimed to explore the roles of circular RNAs (circRNAs) in extracellular vesicles (EVs) isolated from serum of patients with endometrial cancer. MATERIALS & METHODS: EVs were isolated from serum samples of three patients with stage III adenocarcinoma aged 50-60 years and three matched healthy controls. RNA was extracted from the EVs and analyzed using RNA-seq technique. RESULTS: We got 209 upregulated circRNAs and 66 downregulated circRNAs. Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that the differentially expressed circRNAs were enriched in five pathways. The expression level of hsa_circ_0109046 and hsa_circ_0002577 was confirmed using real-time quantitative PCR. CONCLUSION: We identified 275 differentially expressed circRNAs and the expression level of two circRNAs was confirmed using real-time quantitative PCR. PMID- 29334254 TI - Antioxidant and anti-proliferative properties of extracts from heterotrophic cultures of Galdieria sulphuraria. AB - This study explores the possibility to use the extremophilic microalga Galdieria sulphuraria (strain 064) as a source of natural biomolecules with beneficial and protective effects on human health. Galdieria was cultivated in heterotrophy conditions and cells extracts for their antioxidant and anti-proliferative properties were tested. Galdieria extracts showed high antioxidant power tested through ABTS assay and revealed high glutathione and phycocyanin contents. Based on Annexin-V FITC/propidium iodide and MTT analysis, algae extracts inhibited the proliferation of human adenocarcinoma A549 cells (51.2% inhibition) through the induction of apoptosis without cell cycle arrest. Besides, cytotoxicity and cytometry assays showed a positive pro-apoptotic mechanism. On these bases, we suggest that G. sulphuraria from heterotrophic culture, for its therapeutic potential, could be considered a good candidate for further studies with the aim to isolate bioactive anti-cancer molecules. PMID- 29334255 TI - NGS-based methylation profiling differentiates TCF3-HLF and TCF3-PBX1 positive B cell acute lymphoblastic leukemia. AB - AIM: To determine whether methylation differences between mostly fatal TCF3-HLF and curable TCF3-PBX1 pediatric acute lymphoblastic leukemia subtypes can be associated with differential gene expression and remission. MATERIALS & METHODS: Five (extremely rare) TCF3-HLF versus five (very similar) TCF3-PBX1 patients were sampled before and after remission and analyzed using reduced representation bisulfite sequencing and RNA-sequencing. RESULTS: We identified 7000 differentially methylated CpG sites between subtypes, of which 78% had lower methylation levels in TCF3-HLF. Gene expression was negatively correlated with CpG sites in 23 genes. KBTBD11 clearly differed in methylation and expression between subtypes and before and after remission in TCF3-HLF samples. CONCLUSION: KBTBD11 hypomethylation may be a promising potential target for further experimental validation especially for the TCF3-HLF subtype. PMID- 29334256 TI - Differential content of secondary metabolites in diploid and tetraploid cytotypes of Siegesbeckia orientalis L. AB - Siegesbeckia orientalis L. is an annual herb widely distributed throughout the world and has many medicinal properties. In Chinese traditional system, it is popularly known as Xi-Xian and used for its anti-inflammatory properties. In the present study, two cytotypes (diploid and tetraploid) have been investigated for their secondary metabolites. The different plant parts have been explored in terms of total phenolics, total flavonoids, DPPH radical scavenging acitivity and total antioxidant capacity. Out of different plant parts, leaves have the maximum amount of secondary metabolites and antioxidant potential. HPTLC technique has been applied to quantify six marker compounds in the two cytotypes. Tetraploid cytotype has been compared with diploid cytotype, which shows that tetraploid has the maximum amount of studied secondary metabolites with high antioxidant potential. PMID- 29334257 TI - Calaxanthones A-C, three new xanthones from the roots of Calophyllum calaba and the cytotoxicity. AB - Three new xanthones, named calaxanthones A-C (1-3), along with 17 known xanthones (4-20) were isolated from the roots of Calophyllum calaba. Their structures were determined by spectroscopic analysis. All isolated compounds were evaluated for their cytotoxicity against five cancer cell lines (KB, HeLa S-3, HT-29, MCF-7 and HepG-2). Compound 3 showed potent cytotoxicity against all the five cancer cell lines with IC50 values in the range of 0.82-5.04 MUM. Furthermore, compound 6 showed potent cytotoxicity against KB, HeLa S-3 and HepG2 cells with IC50 values of 7.06, 5.27 and 9.64 MUM, respectively. Additionally, compound 7 showed potent cytotoxicity against KB cell with an IC50 value of 4.62 MUM. PMID- 29334258 TI - Two new phenylpropanoid esters from Bulbophyllum retusiusculum. AB - Two new phenylpropanoid esters bobulretulates A (1) and B (2), together with eleven known compounds, were isolated from the whole plants of Bulbophyllum retusiusculum. Their structures were elucidated by means of extensive spectroscopic analysis. PMID- 29334259 TI - Development of three-dimensional brain arteriovenous malformation model for patient communication and young neurosurgeon education. AB - PURPOSE: Rapid prototyping technology is used to fabricate three-dimensional (3D) brain arteriovenous malformation (AVM) models and facilitate presurgical patient communication and medical education for young surgeons. METHODS: Two intracranial AVM cases were selected for this study. Using 3D CT angiography or 3D rotational angiography images, the brain AVM models were reconstructed on personal computer and the rapid prototyping process was completed using a 3D printer. The size and morphology of the models were compared to brain digital subtraction arteriography of the same patients. 3D brain AVM models were used for preoperative patient communication and young neurosurgeon education. RESULTS: Two brain AVM models were successfully produced. By neurosurgeons' evaluation, the printed models have high fidelity with the actual brain AVM structures of the patients. The patient responded positively toward the brain AVM model specific to himself. Twenty surgical residents from residency programs tested the brain AVM models and provided positive feedback on their usefulness as educational tool and resemblance to real brain AVM structures. CONCLUSIONS: Patient-specific 3D printed models of brain AVM can be constructed with high fidelity. 3D printed brain AVM models are proved to be helpful in preoperative patient consultation, surgical planning and resident training. PMID- 29334260 TI - Crude extract of Origanum vulgare L. induced cell death and suppressed MAPK and PI3/Akt signaling pathways in SW13 and H295R cell lines. AB - Oregano (Origanum vulgare L.) is a common aromatic plant used in Mediterranean and Asian Regions for treating respiratory diseases, painful menstruation, rheumatoid arthritis, etc. Recently its role as an anticancer plant has been suggested, although oregano has been never evaluated into adrenocortical tumour cell models. This study analysed for the first time the anticancer effects of a crude extract of wild mountain oregano (Origanum vulgare L.) in SW13 and H295R cell lines. The crude extract was characterised by GC/MS and the toxic effects of oregano were first analysed by brine shrimp lethality assay. Our findings demonstrated that oregano decreased cell viability, survival, modified cell cycle and induced cell death (through necrotic process) and that the effects can be attributed to a blockade of MAPK and PI3 K/Akt pathways. These results suggest that oregano extract exerts anticancer activities in adrenocortical tumour cell lines, providing evidence for further research in higher models. PMID- 29334261 TI - Lignans, flavonoids and coumarins from Viola philippica and their alpha glucosidase and HCV protease inhibitory activities. AB - Two lignans including a new one, five flavonoids and five coumarins were isolated from the whole plant of Viola philippica (synonymised as Viola yedoensis Makino). The new compound was structurally determined as (7R,8S,8'S) -3,3'-dimethoxy- 4,4',9-trihydroxy- 7,9'-epoxy-8,8'-lignan 9-O-rutinoside by analysis of its NMR, MS and CD spectroscopic data. The known compounds were characterised by comparing their NMR and MS data with those reported. Among the known compounds, 5-hydroxy 4'-methoxyflavone-7-O- rutinoside, 6,7-di-O-beta-D- glucopyranosylesculetin, and 7R,8S-dihydrodehydrodiconiferyl alcohol 4-O-beta-D- glucopyranoside were isolated and identified from this genus for the first time. Of these compounds, 5-hydroxy 4'-methoxyflavone-7-O-rutinoside and (7R,8S,8'S) -3,3'-dimethoxy- 4,4',9 trihydroxy- 7,9'-epoxy-8,8'-lignan 9-O-rutinoside were potently active against alpha-glucosidase, while the two dimeric coumarins, 5, 5'-bi (6, 7 dihydroxycoumarin) and 6,6',7,7'-tetrahydroxy-5,8'-bicoumarin potently inhibited HCV protease. PMID- 29334262 TI - A multicentre study on unattended automated office blood pressure measurement in treated hypertensive patients. AB - AIMS: Unattended automated office blood pressure (uAutoOBP) may eliminate white coat effect. In the present study, we studied its relationships to attended office blood pressure (BP) and ambulatory BP monitoring (ABPM). MATERIAL AND METHODS: Stable treated hypertensive subjects were examined in four Czech academic hypertension centres. uAutoOBP was measured with the BP Tru device; attended BP was measured six times: three times with auscultatory method (AuscOBP) by the physician followed optionally by three oscillometric measurements (OscOBP). ABPM was performed within one week from the clinical visit. RESULTS: Data on 172 subjects aged 63.7 +/- 12.4 years with AuscOBP 127.6 +/- 12.1/77.6 +/- 10.0 mm Hg are reported. uAutoOBP was by 8.5 +/- 9.0/3.0 +/- 6.1 mm Hg lower than AuscOBP. The AuscOBP-uAutoOBP difference increased with the AuscOBP level and it did not depend on any other factor. OscOBP differed by 8.6 +/- 8.6/1.9 +/- 5.7 mm Hg from uAutoOBP. 24-hour mean BP was by 4.2 +/- 12.1/3.5 +/- 7.8 mm Hg lower than AuscOBP and by 4.3 +/- 11.0/0.5 +/- 6.9 mm Hg higher than uAutoOBP; the correlation coefficients of 24-hour mean BP with AuscOBP and with uAutoOBP did not differ (p for difference >=.13). In the lowest BP group (systolic AuscOBP <120 mm Hg or diastolic AuscOBP <70 mm Hg), both AuscOBP and uAutoOBP were lower than 24-hour mean BP, while in the highest BP group (systolic AuscOBP >=140 mm Hg or diastolic AuscOBP >=90 mm Hg), they were higher. CONCLUSIONS: Compared to uAutoOBP, attended BP measurement gives higher values, both when measured with auscultatory or oscillometric method. Inter-individual variability of AutoOBP - uAuscOBP difference, as well of uAutoOBP - ABPM difference, is large. We did not prove that uAutoOBP would be associated to 24 hour ambulatory BP more closely than attended BP. PMID- 29334263 TI - New cytotoxic natural products from the mangrove biome: covering the period 2007 2015. AB - Nowadays, the mangrove biome is considered to be a profound resource of natural products usually possessing cytotoxicity of a broader range. Covering the period 2007-2015, a total of 21 new naturally occurring compounds has stood out. For example, xylogranin B and swietephragmin C were found to exhibit very potent cytotoxic activity against the colon HCT-116 cells reaching IC50 values of 0.05 and 0.06 MUM, respectively. Bearing in mind the efficacy of the majority compounds in the preliminary in vitro screens, these studies should be expanded to both ex vivo and in vivo screens including the evaluation of the relevant toxicological profiles. PMID- 29334264 TI - Antifungal activity of phenolic monoterpenes and structure-related compounds against plant pathogenic fungi. AB - The aim of this work is to explore the possibility of using the phenolic monoterpenes (PMs) as leading compounds with antifungal activity against plant disease. The in vitro antifungal activities of carvacrol and thymol against seven kinds of plant pathogenic fungi were evaluated on mycelium growth rate method, and the results showed that carvacrol and thymol exhibited broad spectrum antifungal activity. Structure requirement for the antifungal activity of PMs was also investigated. The preliminary conclusion was that phenolic hydroxyl and monoterpene were basic structures for the antifungal activity of PMs, and the position of phenolic hydroxyl showed less effect. Ester derivatives of carvacrol and thymol were more effective than carvacrol and thymol against plant pathogenic fungi. We suggested that carvacrol, thymol and their ester derivatives could potentially be used as new fungicide leading compounds. PMID- 29334265 TI - Prevalence and covariates of uncontrolled hypertension in ischemic stroke survivors: the Norwegian stroke in the young study. AB - PURPOSE: Hypertension is the most important modifiable risk factor for stroke. Few data are available on control of hypertension in younger ischemic stroke survivors. MATERIAL AND METHODS: We assessed clinic and ambulatory blood pressure (BP) measurements in 320 patients aged 15-60 years (mean 48 +/- 10) included in the Norwegian Stroke in the Young Study during 3-months follow-up after the index stroke. Controlled hypertension was defined as ambulatory BP <130/80 mmHg. Carotid-femoral pulse wave velocity (PWV) was measured by applanation tonometry. Carotid plaque was considered present if focal intima-media thickness >1.5 mm. RESULTS: At hospital discharge, 58% of the patients were treated for hypertension. Another 9% of the total study population was diagnosed with new onset hypertension during follow-up. At the 3-months follow-up visit, 56% of patients with treated hypertension were uncontrolled. Patients with uncontrolled treated hypertension were older, had higher body mass index (BMI) and PWV, and were more likely to have diabetes and carotid plaques compared to patients with normotension (p < .01). Compared to controlled treated hypertension, patients with uncontrolled treated hypertension had higher prevalence of carotid plaque (p < .01). In a multivariate logistic regression, uncontrolled treated hypertension was associated with higher PWV and BMI, and presence of carotid plaque, independent of the more intensified use of antihypertensive treatment (all p < .05). CONCLUSION: Uncontrolled hypertension was highly prevalent in ischemic stroke survivors <60 years and associated with co-presence of obesity and functional and structural arterial damage. Our results highlight the unmet potential and challenge of optimization of hypertension diagnosis and management in order to prevent recurrent vascular events in ischemic stroke survivors. PMID- 29334266 TI - Hyaluronic acid modified daunorubicin plus honokiol cationic liposomes for the treatment of breast cancer along with the elimination vasculogenic mimicry channels. AB - BACKGROUND: Breast cancer is an alarming global public health problem and a main cause of cancer-related death in women. Systemic chemotherapy is the most widely used treatment for breast cancer. However, current chemotherapy treatments are far from desirable due to poor targeting specificity, severe side effects and vasculogenic mimicry (VM). PURPOSE: Hyaluronic acid (HA)-modified daunorubicin plus honokiol (HNK) cationic liposomes were prepared and characterised for treatment of breast cancer by eliminating VM. METHODS: HA-modified daunorubicin plus HNK cationic liposomes were prepared by a thin-film hydration method. Evaluations were performed on MCF-7 cells and MDA-MB-435S cells, which are human breast cancer cells, and xenografts of MDA-MB-435S cells. RESULTS: In vitro results revealed that the HA-modified daunorubicin plus HNK cationic liposomes enhanced the cellular uptake and destroyed VM channels. In vivo results demonstrated that the liposomes prolonged the circulation time in the blood, obviously accumulated in the tumour region, and enhanced the overall anticancer effects. Action mechanisms were related to down-regulation of VM protein indicators including FAK, EphA2, MMP-2 and MMP-9. CONCLUSIONS: The prepared HA modified daunorubicin plus HNK cationic liposomes may serve as a promising therapeutic strategy for the treatment of breast cancer. PMID- 29334268 TI - Analysis of the development and progression of carbon monoxide poisoning-related acute kidney injury according to the Kidney Disease Improving Global Outcomes (KDIGO) criteria. AB - CONTEXT: Acute kidney injury (AKI) can occur after carbon monoxide (CO) intoxication; however, limited data are available. This study aimed to evaluate the prognostic value of the development and progression of AKI in patients with acute CO poisoning. MATERIALS AND METHODS: We conducted a retrospective cohort study using a prospective registry of CO poisoning between January 2010 and December 2015. AKI was defined and classified according to the Kidney Disease Improving Global Outcomes (KDIGO) criteria. Multivariate logistic regression analysis was conducted to determine the association between AKI and adverse outcomes, defined as neurological deficits at discharge or 28-day mortality. RESULTS: A total of 661 patients were evaluated. According to KDIGO criteria, 114 patients (17.2%) had AKI (initial: stage 1, 70.2%; stage 2, 26.3%; stage 3, 3.5%) on admission and 119 (18.0%) finally developed AKI during their hospital stay (maximum: stage 1, 68.9%; stage 2, 23.5%; stage 3, 7.6%). Almost all patients (99.2%) were diagnosed as having their highest KDIGO stage within three days (median, one day). AKI development was associated with adverse outcomes (odds ratio (OR) 17.53, 95% confidence interval 45.00-77.14). Both initial and maximum AKI stages demonstrated a stepwise increase of adjusted OR for adverse outcomes. AKI stage progression occurred in 8.4% of patients with AKI and was an independent factor for adverse outcomes. CONCLUSION: CO poisoning- related AKI occurred in 18% and was mostly detected within one day after CO intoxication. The development and progression of AKI had a strong association with adverse outcomes and deserve further prospective investigation. PMID- 29334269 TI - Effects of a transient noise reduction algorithm on speech intelligibility in noise, noise tolerance and perceived annoyance in cochlear implant users. AB - OBJECTIVE: To evaluate the validity and efficacy of a transient noise reduction algorithm (TNR) in cochlear implant processing and the interaction of TNR with a continuous noise reduction algorithm (CNR). DESIGN: We studied the effects of TNR and CNR on the perception of realistic sound samples with transients, using subjective ratings of annoyance, a speech-in-noise test and a noise tolerance test. STUDY SAMPLE: Participants were 16 experienced cochlear implant recipients wearing an Advanced Bionics Naida Q70 processor. RESULTS: CI users rated sounds with transients as moderately annoying. Annoyance was slightly, but significantly reduced by TNR. Transients caused a large decrease in speech intelligibility in noise and a moderate decrease in noise tolerance, measured on the Acceptable Noise Level test. The TNR had no significant effect on noise tolerance or on speech intelligibility in noise. The combined application of TNR and CNR did not result in interactions. CONCLUSIONS: The TNR algorithm was effective in reducing annoyance from transient sounds, but was not able to prevent a decreasing effect of transients on speech understanding in noise and noise tolerance. TNR did not reduce the beneficial effect of CNR on speech intelligibility in noise, but no cumulated improvement was found either. PMID- 29334270 TI - Secukinumab in multi-failure psoriatic patients: the last hope? AB - Psoriasis is a multi-systemic chronic inflammatory disease that affects about 1.5 3% of the general population, of which almost 20% suffer from a moderate-severe form. Those patients can be treated with a systemic agent and in case of scarce response or contraindications, they may require a biologic therapy, such as tumor necrosis factor or interleukin-12/23 inhibitors. When also these agents fail, clinicians face a true therapeutic challenge. We report a case series of multi failure 16 patients, successfully treated with secukinumab, a human monoclonal antibody that selectively neutralizes interleukin-17 A and is recently approved for the treatment of plaque psoriasis, psoriatic arthritis, and ankylosing spondylitis. PMID- 29334271 TI - The safety of available treatments of male hypogonadism in organic and functional hypogonadism. AB - INTRODUCTION: In the case of primary male hypogonadism (HG), only testosterone (T) replacement therapy (TRT) is possible whereas when the problem is secondary to a pituitary or hypothalamus alteration both T production and fertility can be, theoretically, restored. We here systematically reviewed and discussed the advantages and limits of medications formally approved for the treatment of HG. Areas covered: Data derived from available meta-analyses of placebo controlled randomized trials (RCTs) were considered and analyzed. Gonadotropins are well toleratedand their use is mainly limited by higher costs and a more cumbersome treatment schedule than TRT. Available RCTs on TRT suggest that cardiovascular (CV) and venous thromboembolism risk is not a major issue and that prostate safety is guaranteed. The risk of increased hematocrit is mainly limited to the use of short terminjectable preparations. Expert opinion: In the last few years the concept of 'organic' irreversible HG and 'functional' or age- and comorbidity related HG has been introduced. This definition is not evidence-based. The majority of RCTs enrolled patients with 'functional' HG. Considering the significant improvement in body composition, glucose metabolism and sexual activity, TRT should not be limited to 'organic' HG, but also offered for 'functional'. PMID- 29334273 TI - The Barthel Index and the Cumulated Ambulation Score are superior to the de Morton Mobility Index for the early assessment of outcome in patients with a hip fracture admitted to an acute geriatric ward. AB - PURPOSE: To examine clinimetric properties of the de Morton Mobility Index (DEMMI) in patients with hip fracture in comparison with the modified Barthel Index (BI), Cumulated Ambulation Score (CAS), and 30-s Chair Stand Test (30-s CST). MATERIALS AND METHODS: Two hundred and twenty two patients with a hip fracture admitted to a geriatric ward following surgery were assessed on day 1 and at discharge (mean of 9 [SD 5.1] post-surgery days). RESULTS: Ninety eight percent and 89% of patients were not able to perform the 30-s CST at baseline and at discharge (large floor effect), respectively. Corresponding floor effects were 39% and 31% for DEMMI, 12% and 5% for BI, and 22% and 6%, respectively, for CAS. Convergent validity was strong between DEMMI and CAS (r = 0.76, 95% CI: 0.69 0.81), and moderate between DEMMI and BI (r = 0.58, 95% CI: 0.48-0.66) and CAS and BI (r = 0.49, 95% CI: 0.39-0.59). Responsiveness, as indicated by the effect size was 0.76 for DEMMI, 1.78 for BI and 1.04 for CAS. Baseline scores of DEMMI, BI, and CAS showed similar properties in predicting discharge destination of patients from own home. CONCLUSIONS: The value of using DEMMI and 30-s CST in patients with hip fracture during the acute hospitalization seems limited in comparison with BI and CAS. DEMMI and CAS seem to assess similar constructs. Implications for Rehabilitation Outcome measures used for the evaluation of patients with hip fracture should be validated in the specific time-line and rehabilitation setting following surgery, before being implemented in daily clinical practice. We suggest the Cumulated Ambulation Score for monitoring basic mobility during the acute hospitalization for the entire group of patients recovering from a hip fracture, while DEMMI seems more feasible for the subgroup of patients with higher functional levels. The modified Barthel Index seems useful for the assessment of activities of daily living in the acute care setting of patients with hip fracture. We cannot recommend the original 30-s Chair Stand Test to be used for the evaluation of patients with hip fracture in the acute hospital setting. PMID- 29334272 TI - Extracellular vesicle-mimetic nanovesicles transport LncRNA-H19 as competing endogenous RNA for the treatment of diabetic wounds. AB - Diabetic wounds, one of the most enervating complications of diabetes mellitus, affect millions of people worldwide annually. Vascular insufficiency, caused by hyperglycemia, is one of the primary causes and categories of diabetic impaired wound healing. Recently, long noncoding RNA (LncRNA)-H19, which is significantly decreased in diabetes and may be crucial in triggering angiogenesis, has attracted increasing interest. The possible relationship between the decrease of LncRNA-H19 and the impairment of angiogenesis in diabetes could involve impairment of the insulin-phosphatidylinositol 3-kinase (PI3K)-Akt pathway via the interdiction of LncRNA-H19. Thus, a therapeutic strategy utilizing LncRNA-H19 delivery is feasible. In this study, we investigated the possibility of using high-yield extracellular vesicle-mimetic nanovesicles (EMNVs) as an effective nano-drug delivery system for LncRNA, and studied the function of EMNVs with a high content of LncRNA-H19 (H19EMNVs). The results, which were exciting, showed that H19EMNVs had a strong ability to neutralize the regeneration-inhibiting effect of hyperglycemia, and could remarkably accelerate the healing processes of chronic wounds. Our results suggest that bioengineered EMNVs can serve as a powerful instrument to effectively deliver LncRNA and will be an extremely promising multifunctional drug delivery system in the immediate future. PMID- 29334274 TI - An overview of robotic/mechanical devices for post-stroke thumb rehabilitation. AB - PURPOSE: This article aims to clarify the current state-of-the-art of robotic/mechanical devices for post-stroke thumb rehabilitation as well as the anatomical characteristics and motions of the thumb that are crucial for the development of any device that aims to support its motion. METHODS: A systematic literature search was conducted to identify robotic/mechanical devices for post stroke thumb rehabilitation. Specific electronic databases and well-defined search terms and inclusion/exclusion criteria were used for such purpose. A reasoning model was devised to support the structured abstraction of relevant data from the literature of interest. RESULTS: Following the main search and after removing duplicated and other non-relevant studies, 68 articles (corresponding to 32 devices) were left for further examination. These articles were analyzed to extract data relative to (i) the motions assisted/permitted - either actively or passively - by the device per anatomical joint of the thumb and (ii) mechanical-related aspects (i.e., architecture, connections to thumb, other fingers supported, adjustability to different hand sizes, actuators - type, quantity, location, power transmission and motion trajectory). CONCLUSIONS: Most articles describe preliminary design and testing of prototypes, rather than the thorough evaluation of commercially ready devices. Defining appropriate kinematic models of the thumb upon which to design such devices still remains a challenging and unresolved task. Further research is needed before these devices can actually be implemented in clinical environments to serve their intended purpose of complementing the labour of therapists by facilitating intensive treatment with precise and repeatable exercises. Implications for Rehabilitation Post-stroke functional disability of the hand, and particularly of the thumb, significantly affects the capability to perform activities of daily living, threatening the independence and quality of life of the stroke survivors. The latest studies show that a high-dose intensive therapy (in terms of frequency, duration and intensity/effort) is the key to effectively modify neural organization and recover the motor skills that were lost after a stroke. Conventional therapy based on manual interaction with physical therapists makes the procedure labour intensive and increases the costs. Robotic/mechanical devices hold promise for complementing conventional post-stroke therapy. Specifically, these devices can provide reliable and accurate therapy for long periods of time without the associated fatigue. Also, they can be used as a means to assess patients? performance and progress in an objective and consistent manner. The full potential of robot-assisted therapy is still to be unveiled. Further exploration will surely lead to devices that can be well accepted equally by therapists and patients and that can be useful both in clinical and home-based rehabilitation practice such that motor recovery of the hand becomes a common outcome in stroke survivors. This overview provides the reader, possibly a designer of such a device, with a complete overview of the state-of-the-art of robotic/mechanical devices consisting of or including features for the rehabilitation of the thumb. Also, we clarify the anatomical characteristics and motions of the thumb that are crucial for the development of any device that aims to support its motion. Hopefully, this?combined with the outlined opportunities for further research?leads to the improvement of current devices and the development of new technology and knowledge in the field. PMID- 29334275 TI - Laparoscopic ovarian drilling versus GnRH antagonist combined with cabergoline as a prophylaxis against the re-development of ovarian hyperstimulation syndrome. AB - OBJECTIVE: The aim of this work was to investigate the value of laparoscopic ovarian drilling (LOD) compared with GnRH antagonist flexible protocol combined with cabergoline (Cb), as a prophylaxis against the re-development of ovarian hyperstimulation syndrome (OHSS) in women with clomiphene citrate-resistant polycystic ovary disease (CCR-PCOD) who had severe OHSS before in a previous ICSI cycle. STUDY DESIGN: It is a prospective controlled study, where 250 CCR-PCOD women (n = 250) with a history of severe OHSS before, had been recruited for the study. LOD had been performed for 120 (n = 120) of the recruited women before ovarian induction, and considered as group A. GnRH antagonist (Cetrotide 0.25 mg) was added when a leading follicle reaches 14-16 mm combined with oral Cb in a dose 0.5 mg a day before hCG, and for 8 d for another 130 (n = 130) women, and considered as group B. Pregnancy was diagnosed with BhCG level >=25 IU/L, +/- 14 d after embryo transfer, followed with transvaginal ultrasound scanning (TVS) 2 weeks later to confirm intra-uterine pregnancy (IUP). Women were followed up weekly for 3 months for the possible development of any signs and symptoms of OHSS. RESULTS: None of the participants in group A developed severe OHSS, and only six women (5%) developed mild to moderate OHSS. The incidence of severe OHSS was significantly higher (n = 3, 15%) in group B compared with group A (p < .001). Another (n = 17, 13.3%) women in group B developed mild to moderate OHSS. The probability of developing severe OHSS was also significantly higher in group B as well (p = .031). Pregnancy rate (PR) was significantly higher in group A more than group B (67% versus 39%, respectively), and all were single intrauterine pregnancies (IUP) and all developed after fresh embryo transfer (ET), compared with frozen embryo transfer (FET) which was performed in 42 cases in group B after postponing ET due to significantly severe OHSS developed. CONCLUSION: LOD could be considered a good prophylactic measure against OHSS, in addition to improving the total outcome of IVF cycles in women with CCR-PCOS. PMID- 29334277 TI - Validation of DPOAE screening conducted by village health workers in a rural community with real-time click evoked tele-auditory brainstem response. AB - OBJECTIVE: This study assessed the validity of DPOAE screening conducted by village health workers (VHWs) in a rural community. Real-time click evoked tele auditory brainstem response (tele-ABR) was used as the gold standard to establish validity. DESIGN: A cross-sectional design was utilised to compare the results of screening by VHWs to those obtained via tele-ABR. Study samples: One hundred and nineteen subjects (0 to 5 years) were selected randomly from a sample of 2880 infants and young children who received DPOAE screening by VHWs. METHOD: Real time tele-ABR was conducted by using satellite or broadband internet connectivity at the village. An audiologist located at the tertiary care hospital conducted tele-ABR testing through a remote computing paradigm. Tele-ABR was recorded using standard recording parameters recommended for infants and young children. Wave morphology, repeatability and peak latency data were used for ABR analysis. RESULTS: Tele-ABR and DPOAE findings were compared for 197 ears. The sensitivity of DPOAE screening conducted by the VHW was 75%, and specificity was 91%. The negative and positive predictive values were 98.8% and 27.2%, respectively. CONCLUSIONS: The validity of DPOAE screening conducted by trained VHW was acceptable. This study supports the engagement of grass-root workers in community based hearing health care provision. PMID- 29334276 TI - An automatic measure of progression during colonoscopy correlates to patient experienced pain. AB - BACKGROUND: Colonoscopy screening and surveillance programs depend on patient's tolerable experience, which is associated with competence of the endoscopist. The Colonoscopy Progression Score (CoPS) is an automated tool based on recording of the Magnetic Scope Imager (MEI) picture in order to track progression. CoPS deliver a numeric score and a graphic map. A high score expresses a rapid and smooth progression. Aims of study were to explore the correlation between CoPS and patient experienced pain and to identity locations associated with pain. METHODS AND MATERIALS: Patients listed for colonoscopy were included and asked to reply to pain by pressing a rubber ball. The signal was recorded simultaneous to CoPS. Patients evaluated the experience on a Visual Analogue Scale (VAS). CoPS and recorded pain events were used to create a pain sensitive CoPS-map (S-CoPS map). RESULTS: A total of 58 complete recordings were used for evaluation. We demonstrated a moderate correlation between CoPS and patient experienced pain, Pearson's r = -0.47 (p < .001). A low CoPS was associated with a painful colonoscopy and a high CoPS excluded severe pain. Sensitivity and specificity was 0.79 and 0.60 and AUC was 0.61 Passage of the sigmoid colon, right and left flexures were associated with pain for 51%, 33% and 25% of the patients, respectively. CONCLUSION: A moderate correlation between CoPS and patient experienced pain suggest that CoPS measure inserting skills but might also be a measure of a gentle performance. The graphic S-CoPS-map can be used to point-out painful passages and aid planning of future colonoscopies. PMID- 29334278 TI - A comparative safety review between GLP-1 receptor agonists and SGLT2 inhibitors for diabetes treatment. AB - INTRODUCTION: Glucagon-like peptide-1 receptor agonists (GLP-1RA) and sodium glucose cotransporter 2 inhibitors (SGLT2i) are of particular interest in type 2 diabetes treatment strategies, due to their efficacy in reducing HbA1c with a low risk of hypoglycaemia, to their positive effects on body weight and blood pressure and in light of their effects on cardiovascular risk and on nephroprotection emerged from the most recent cardiovascular outcome trials. Since it is therefore very likely that GLP-1RA and SGLT2i use will become more and more common, it is more and more important to gather and discuss information about their safety profile. Area Covered: adverse events and the safety concerns most often emerged in trials with GLP-1RA namely, exenatide long acting release (LAR), dulaglutide, liraglutide, semaglutide, lixisenatide or SGLT2i, namely empagliflozin, dapagliflozin, canagliflozin and SGLT2i with an attempt at comparing the safety profiles of molecules of these two classes. Expert opinion: GLP-1RA and SGLT2i, although each associated with different specific side effects, share a 'similar' safety profile and are both drugs relatively easy to handle. The potentially complementary mechanisms of action, the cardio and nephroprotective effects demonstrated by molecules of both classes, make these drugs potentially useful even in add on to each other. PMID- 29334279 TI - Uric acid and the vaccine adjuvant activity of aluminium (oxy)hydroxide nanoparticles. AB - In an effort to improve the adjuvanticity of insoluble aluminium salts, we discovered that the adjuvant activity of aluminium salt nanoparticles is significantly stronger than aluminium salt microparticles, likely related to nanoparticle's stronger ability to directly activate NACHT, LRR and PYD domains containing protein 3 (NLRP3) inflammasome as the nanoparticles are more efficiently taken up by phagocytic cells. Endogenous signals such as uric acid from cell damage or death caused by the cytotoxicity of aluminium salts are thought to indirectly activate inflammasome, prompting us to hypothesise that the potent adjuvant activity of aluminium salt nanoparticles is also related to their ability to stimulate uric acid production. In the present study, we prepared aluminium (oxy)hydroxide nanoparticles (~ 30-100 nm) and microparticles (X50, 9.43 MUm) and showed that intraperitoneal injection of mice with the nanoparticles, absorbed with ovalbumin, led to a significant increase in uric acid level in the peritoneal lavage, whereas the microparticles did not. The aluminium (oxy)hydroxide nanoparticles' ability to stimulate uric acid production was also confirmed in cell culture. We concluded that the stronger adjuvant activity of insoluble aluminium (oxy)hydroxide nanoparticles, relative to microparticles, may be attributed at least in part to their stronger ability to induce endogenous danger signals such as uric acid. PMID- 29334280 TI - Comparison of guidelines for the use of TNF inhibitors for psoriasis in the United States, Canada, Europe and the United Kingdom: a critical appraisal and comprehensive review. AB - PURPOSE: To compare and contrast evidence-based CPGs from leading dermatological organizations for the use of tumor necrosis factor inhibitors (TNFi) in psoriasis. MATERIALS AND METHODS: Guidelines from the British National Institute for Health and Care Excellence (NICE), the British Association of Dermatologists (BAD), the American Academy of Dermatology (AAD), the National Psoriasis Foundation (NPF), and the Canadian Dermatology Association (CDA) were reviewed and compared. RESULTS: Various guidelines are similar regarding treatment initiation but have significant differences regarding topics such as continuous versus intermittent therapy, use in erythrodermic and pustular palmoplantar psoriasis and special patient populations. CONCLUSION: TNF inhibitors remain valuable tools in psoriasis therapy, and guidelines for their use may help clinicians use them effectively. PMID- 29334281 TI - Learning with unwell patients in the intensive care unit. PMID- 29334282 TI - Evaluation of dentin permeability of fluorotic permanent teeth. AB - OBJECTIVE: The in vitro permeability characteristics of dentin have been studied extensively and used to evaluate the efficacy of various preventative and restorative procedures. The aim of this in vitro study was to precisely determine the dentin permeability of fluorotic premolar teeth using an electronic hydraulic conductance measurement system with photosensors and to compare the data with healthy premolars. METHODS: In total, 40 fluorotic and healthy premolar teeth with complete root formation that were extracted for orthodontic purposes and had no caries, restoration, fractures, or cracks were selected for this study. Teeth were classified according to a modified form of the dental fluorosis index of Thylstrup and Fejerskov. The dentin discs were placed in an electronic hydraulic conductance measurement system equipped with photosensors, which was designed for measurements of dentin permeability. The amount of distilled water passed through each dentin disc (MUL/min) under a constant pressure was determined. Dentin permeability data of the fluorotic and healthy teeth were recorded and analyzed statistically. RESULTS: The present study showed that fluorosis influenced the volume of fluid that passed through the dentin and the dentin permeability was decreased, whereas dental fluorosis severity was increased in permanent teeth. CONCLUSION: The number of teeth with fluorosis is increasing, depending on fluorine sources, so more appropriate treatments will need to be evaluated by standardizing the methods employed in related studies. PMID- 29334283 TI - Effects of an exercise program on the physiological, biological and psychological profiles in patients with mood disorders: a pilot study. AB - OBJECTIVE: The objective of this study is to assess the impact of an 8-week physical training program on physiological, biological and psychological profiles in individual with mood disorders. METHODS: Seven patients participated in the study. Patients were trained twice weekly (75 min/session) for 8 weeks. The training program aimed to improve muscular and cardiorespiratory reserves as well as functional capacity. Bioassays were also measured (lipid profile, blood glucose and cortisol). Depression, sleep quality and body image dissatisfaction were assessed. All measures were administrated at pre/post-intervention. RESULTS: At post-intervention, 13 of the 15 physiological fitness, muscular strength and functional capacity variables improved significantly (p < .05). In addition, change in cortisol levels represented a medium to large effect size (Cohen's d = 0.67) which indicates a clinical reduction of stress-related symptoms. Depression was significantly improved (Cohen's d = -0.47; p = .027). Sleep and body image showed a trend-level improvement. CONCLUSIONS: An 8-week periodised training program improved physiological, biological and psychological profiles in patients with mood disorders. PMID- 29334284 TI - Surface endoglin (CD105) expression on acute leukemia blast cells: an extensive flow cytometry study of 1002 patients. PMID- 29334285 TI - What should we mean by "allowed to supervise others" in entrustment scales? PMID- 29334286 TI - An editorial on the article 'Patents in the Diabetes Area in the Years 2008 2016'. PMID- 29334287 TI - Efficacy and safety of alpha blockers in medical expulsive therapy for ureteral stones: a mixed treatment network meta-analysis and trial sequential analysis of randomized controlled clinical trials. AB - INTRODUCTION: Alpha blockers (AB) are the main group of drugs used for medical expulsive therapy (MET) in patients with ureteral stones. However, there is no consensus on the relative efficacy and safety of individual AB in MET. Areas covered: The present work is a network meta-analysis of randomized controlled trials comparing AB with either placebo or standard of care in patients with ureteral stones. Electronic databases of Medline, Cochrane CENTRAL and Google Scholar were searched for eligible clinical studies. Inverse variance heterogeneity model was used for mixed treatment comparisons. Stone expulsion rate (SER) and stone expulsion time (SET) were the primary outcomes. Sub-group analyses for the following sub-groups were carried out: children; after shockwave lithotripsy; stone size of <=5 mm; >5 mm; proximal and distal ureteral stones. Expert review: AB, phosphodiesterase inhibitors and combined AB with corticosteroids were observed with significant stone expulsion rate compared to control group in a recent network meta-analysis. Due to lack of head-to-head clinical trials within AB, only tamsulosin has been widely recommended by various urological guidelines. The results of this network meta-analysis will guide the future researchers in evaluating other promising ABs as agents for MET. PMID- 29334288 TI - Targeted anti-IL-13 therapies in asthma: current data and future perspectives. AB - INTRODUCTION: The identification of patients with severe asthma who will benefit from a personalized management approach remains an unmet need. Interleukin-13 (IL 13) is a cytokine possessing a significant role in asthma pathogenesis and progression of disease. Humanised monoclonal antibodies against IL-13 and IL-13 and IL-4 receptors are mainly proposed as add-on therapy in patients with TH2 high inflammation with uncontrolled asthma despite maximum therapy. Areas covered: The role of IL-13 in airway inflammation in severe asthma, the targeted anti-IL-13 therapies and biomarkers that predict response to anti-IL-13 treatment are discussed. Expert opinion: New effective individualized therapies in severe asthma are urgently needed to block specific inflammatory pathways using monoclonal antibodies. Studies on anti-IL-13 therapies showed that asthmatic patients could benefit from this novel targeted therapy as far as lung function and exacerbation rate are concerned. TH2-high and especially periostin-high groups of asthmatics with moderate-to-severe uncontrolled asthma seem to compose the group that could benefit from anti-IL-13 therapy. Targeting IL-13 alone may not be sufficient to achieve asthma control. Inhibition of IL-13 and IL-4 with mabs may be more encouraging and patients will probably have additional benefits from these therapeutic interventions because of IL-13/IL-4 overlapping actions in asthma pathophysiology. PMID- 29334289 TI - The extracellular matrix-degrading protein ADAMTS5 is expressed in the nuclei of urothelial cells in healthy rats. AB - OBJECTIVE: The aim of this study was to investigate whether protein expression of the extracellular matrix-degrading protease ADAMTS5 can be demonstrated in the urinary bladder of healthy rats, and, if so, to determine the localization of this enzyme. MATERIALS AND METHODS: The experiments were conducted with eight inbred male Sprague-Dawley rats. Immunohistochemistry was used to investigate the expression of ADAMTS5 in the urinary bladder. Negative controls were established by either excluding the primary antibody or applying the antibody after it had been preabsorbed with its immunogenic peptide. Confocal microscopy was used to visualize the distribution of ADAMTS5 in the urinary bladder tissue. RESULTS: Immunoreactivity for ADAMTS5 was demonstrated in the urothelium and in the detrusor. This expression was localized not only in the cytoplasm, but also in the nuclei. Confocal microscopy corroborated these findings. CONCLUSION: Expression of ADAMTS5 was demonstrated in the cytoplasm as well as in the nuclei of the urothelium and detrusor cells, suggesting that it may play a role at the transcriptional level. PMID- 29334290 TI - Topical lidocaine-prilocaine cream versus lidocaine infiltration for pain relief during repair of perineal tears after vaginal delivery: randomized clinical trial. AB - OBJECTIVE: The current study aims to compare the analgesic effect of lidocaine prilocaine (LP) cream with lidocaine infiltration during repair of perineal tears after vaginal delivery. MATERIALS AND METHODS: A single center open-labeled randomized clinical trial was carried out in a tertiary University Hospital between October 2016 and May 2017 (Clinical Trials.Gov: NCT02883179). We included parous women, who delivered at gestational age >37 weeks with first- or second degree perineal tears. The participants were randomized in a 1:1 ratio to either lidocaine infiltration (Group I); or application of LP cream (Group II) for pain relief during perineal repair. The primary outcome was the difference in mean pain score during perineal repair. Secondary outcomes included the participants' satisfaction, the need for additional anesthesia, the duration of perineal repair, and the rate of adverse effects of both medications. RESULTS: The study included 144 participants randomized to both groups. The mean pain score during perineal repair was significantly lower in the LP cream group (3.86 +/- 1.59) than the lidocaine infiltration group (5.99 +/- 1.47) [p = .001]. The duration of repair was significantly shorter in the LP group than the lidocaine infiltration group (6.37 +/- 3.68 versus 8.17 +/- 2.75 min, respectively, p = .001). The need for additional anesthesia was quite similar in both groups (p = .371). More women in the LP cream group were satisfied than the other group with statistical significant difference (76.4 versus 30.6%, p = .000). No difference between side effects in both groups (p = .171) Conclusions: Topical application of lidocaine prilocaine cream is an effective analgesic during repair of perineal tears with no harmful side effects. PMID- 29334291 TI - Prevalence and risk factors of hyperprolactinemia among patients with various psychiatric diagnoses and medications. AB - OBJECTIVES: Hyperprolactinemia is a common adverse event associated with psychotropic medications (mainly antipsychotics) used in the management of schizophrenia and bipolar disorders. The aim of this study was to estimate the prevalence of hyperprolactinemia in psychiatric patients and to evaluate its association with various psychiatric diagnoses and the use of various psychotropic medications. METHODS: A cross-sectional observational study was conducted between July 2012 and June 2014. Patients were recruited from a number of hospitals located in the five regions of Saudi Arabia. Hyperprolactinemia was defined as blood prolactin levels >25 ng/mL in females and >20 ng/mL in males, regardless of the presence of symptoms. RESULTS: A total of 997 patients (553 males and 444 females) were included in the current analysis. The average blood prolactin level was 32.6 +/- 44.1 ng/mL, with higher levels among females than males (42.9 +/- 61.3 versus 24.4 +/- 18.6, p < .001). The prevalence of hyperprolactinemia was 44.3%, with no significant gender difference (41.9% in females versus 46.3% in males, p = .164) but with huge variability according to individual antipsychotic and other psychotropic medications. In the multivariate analysis adjusted for demographic and clinical characteristics, hyperprolactinemia was independently and positively associated with using antipsychotic medications (OR = 2.08, 1.26-3.42, p = .004). Additionally, previous hospitalisation, diabetes and hypothyroidism were positively associated, whereas having primary depressive disorders was negatively associated. CONCLUSIONS: We report a high prevalence of hyperprolactinemia among a large sample of psychiatric patients in Saudi Arabia, which was linked to the use of antipsychotic medications. Routine measurement of blood prolactin levels for all patients maintained on antipsychotic agents is recommended, regardless of symptoms. PMID- 29334293 TI - DNA barcoding for species identification in deep-sea clams (Mollusca: Bivalvia: Vesicomyidae). AB - Deep-sea clams (Bivalvia: Vesicomyidae) have been found in reduced environments over the world oceans, but taxonomy of this group remains confusing at species and supraspecific levels due to their high-morphological similarity and plasticity. In the present study, we collected mitochondrial COI sequences to evaluate the utility of DNA barcoding on identifying vesicomyid species. COI dataset identified 56 well-supported putative species/operational taxonomic units (OTUs), approximately covering half of the extant vesicomyid species. One species (OTU2) was first detected, and may represent a new species. Average distances between species ranged from 1.65 to 29.64%, generally higher than average intraspecific distances (0-1.41%) when excluding Pliocardia sp.10 cf. venusta (average intraspecific distance 1.91%). Local barcoding gap existed in 33 of the 35 species when comparing distances of maximum interspecific and minimum interspecific distances with two exceptions (Abyssogena southwardae and Calyptogena rectimargo-starobogatovi). The barcode index number (BIN) system determined 41 of the 56 species/OTUs, each with a unique BIN, indicating their validity. Three species were found to have two BINs, together with their high level of intraspecific variation, implying cryptic diversity within them. Although fewer 16 S sequences were collected, similar results were obtained. Nineteen putative species were determined and no overlap observed between intra- and inter-specific variation. Implications of DNA barcoding for the Vesicomyidae taxonomy were then discussed. Findings of this study will provide important evidence for taxonomic revision in this problematic clam group, and accelerate the discovery of new vesicomyid species in the future. PMID- 29334294 TI - Comments on manuscript: early amniotomy after dinoprostone insert used for the induction of labor. PMID- 29334292 TI - Safety and effectiveness of fascial therapy in adult patients with hemophilic arthropathy. A pilot study. AB - BACKGROUND: The primary clinical manifestations of hemophilia are muscle and joint bleeding. Recurrent bleeding leads to a degenerative process known as hemophilic arthropathy. Fascial therapy is one of the most used physiotherapy techniques today to improve joint dysfunctions and chronic pain. OBJECTIVE: To assess the safety and efficacy of fascial therapy treatment in patients with hemophilic arthropathy of ankle and knee. DESIGN: Non-randomized, controlled clinical trial. INTERVENTION: Sixteen patients with hemophilia were allocated to an experimental group or to a control group. The physiotherapy intervention was performed through three sessions (one per week), for 60 min per session. Patients received a physiotherapy treatment using a fascial therapy protocol for patients with hemophilia. MAIN OUTCOME MEASURES: The joint status was evaluated using the Hemophilia Joint Health Score; pain was assessed with the Visual Analogue Scale; the range of movement was evaluated using a universal goniometer; the flexibility of the hamstring muscles was assessed with the fingertip-to-floor, and the lumbar mobility through the Schober test. RESULTS: We observed significant differences in the experimental group for both quality of life and illness behavior. There was no significant improvement in the joint status; however, an improvement was noted in terms of perception of pain in the ankle. CONCLUSIONS: A physiotherapy program based on fascial therapy is safe in patients with hemophilia. Fascial therapy may improve joint status, pain, and mobility in patients with hemophiliac arthropathy of the knee and ankle. PMID- 29334296 TI - The experience of hearing loss: journey through aural rehabilitation. PMID- 29334295 TI - Neuritin provides neuroprotection against experimental traumatic brain injury in rats. AB - OBJECTIVES: Traumatic brain injury (TBI) is a leading cause of death and disability worldwide. Neuritin is a neurotrophic factor that regulates neural growth and development. However, the role of neuritin in alleviating TBI has not been investigated. METHODS: In this study, Sprague Dawley rats (n = 144) weighing 300 +/- 50 g were categorized into control, sham, TBI and TBI + neuritin groups. The neurological scores and the ultrastructure of cortical neurons, apoptotic cells and caspase-3 were measured by using Garcia scoring system, transmission electron microscopy, terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling, Western blot analysis and real-time RT-PCR at various time points post TBI. CONCLUSIONS: Our findings indicated that neuritin plays a protective role in TBI by improving neurological scores, repairing injured neurons and protecting the cortical neurons against apoptosis through inhibition of caspase-3 expression. Further investigation of the molecular mechanisms underlying caspase 3 inhibition by neuritin will provide a research avenue for potential TBI therapeutics. PMID- 29334297 TI - Perceptions of older people's oral health care among nurses working in geriatric home care. AB - OBJECTIVES: This study investigates nurses' self-reported experiences and perceptions of older people's oral health care using a qualitative method. METHODS: We interviewed 10 nurses working in geriatric home care who regularly visit and take care of older people in their homes. The interviews consisted of semi-structured questions. The interviews were then transcribed and analysed. RESULTS: All nurses were aware of the connection between oral health and general health, but more detailed knowledge about oral health was lacking and confidence in oral health care practices was limited. Many of the interviewees noted the cleaning of removable dentures and problems related to them, but did not mention anything about periodontal diseases. Oral health education among the nurses was rare. The nurses reported lack of time to take care of their clients' oral health. As possible development steps, the interviewees suggested that including oral health care in the daily treatment plan would improve oral health care practices. CONCLUSIONS: The nurses' lack of knowledge about oral health care and uncertainty in oral health practices among older people are major problems in daily geriatric home care. Oral health education and confidence in oral health practices should be improved in both basic and on-the-job education. PMID- 29334298 TI - Long-term effects of tungsten carbide (WC) nanoparticles in pelagic and benthic aquatic ecosystems. AB - As the production and usage of nanomaterials are increasing so are the concerns related to the release of the material into nature. Tungsten carbide (WC) is widely used for its hard metal properties, although its use, in for instance tyre studs, may result in nano-sized particles ending up in nature. Here, we evaluate the potential long-term exposure effects of WC nanoparticles on a pelagic (Daphnia magna) and a benthic (Asellus aquaticus) organism. No long-term effects were observed in the benthic system with respect to population dynamics or ecosystem services. However, long-term exposure of D. magna resulted in increased time to first reproduction and, if the particles were resuspended, strong effects on survival and reproductive output. Hence, the considerable differences in acute vs. long-term exposure studies revealed here emphasize the need for more long term studies if we are to understand the effects of nanoparticles in natural systems. PMID- 29334299 TI - Mucoadhesive buccal film containing ornidazole and dexamethasone for oral ulcers: in vitro and in vivo studies. AB - A bilayered mucoadhesive buccal film containing a combination of ornidazole (OD) and dexamethasone sodium phosphate (DEX) was prepared using solvent casting to treat oral ulcers. Films were systematically evaluated in vitro to obtain the optimum formulation. The therapeutic effects of these films were investigated in the rabbit oral ulcer model and the in vivo release of OD and DEX in the human oral cavity was also evaluated. The backing layer contained ethyl cellulose and an optimal mucoadhesive layer containing both OD and DEX was produced. Films from the optimum formulation were 0.427 +/- 0.015 mm thick, weighed 55.89 +/- 0.79 mg, and had a surface pH of 6.34 +/- 0.01. The drug content of the optimum formulation approximated the theoretical value with good uniformity (2.959 +/- 0.106 mg/cm2 for OD and 0.877 +/- 0.031 mg/cm2 for DEX). The formulation showed favorable swelling characteristics and both drugs were released at >95% after 4 h. Moreover, the compound film had a statistically significant effect on mucosal repair and reduced ulcer inflammation without stimulating the human oral mucosa. Cmax of OD in saliva was 37.04 MUg/ml and that of DEX was 9.737 MUg/ml. Given promising therapeutic effects, the compound film developed here could become a local drug delivery device for treating oral ulcers. PMID- 29334300 TI - The impact of early molecular response in children and adolescents with chronic myeloid leukemia treated with imatinib: a single-center study from China. AB - Chronic myeloid leukemia (CML) is rare among children and adolescents. The early molecular response (EMR) is an important prognostic significance for adult CML patients. This study explored the impact of EMR on the prognosis in 40 children and adolescents with CML-CP treated with imatinib (IM). Our results showed that a high proportion of patients failed to achieve the BCR-ABL1/ABL1 International Scale (IS) <= 10% at 3 months. Children with a BCR-ABL1/ABL1 <= 10% at 3 months and <1% at 6 months increased the rate of achieving complete cytogenetic response (CCyR) and/or major molecular response (MMR) at 12 months compared to those with BCR-ABL1/ABL1 > 10%. With a median follow-up of 42 months, patients with BCR ABL1/ABL1 <= 10% showed a better 4-year event-free survival (EFS). In summary, achieving BCR-ABL1/ABL1 IS <=10% at 3 months and <1% at 6 months would increase the possibility of achieving MMR, CCyR at 12 months and had a better 4-year EFS. EMR is a reliable prognosticator for young CML patients treated with IM. PMID- 29334301 TI - Navigating social distance in foundational clinical encounters: Understanding medical students' early experiences with diverse patients. AB - BACKGROUND: Social distance between patients and physicians has been shown to affect the quality of care that patients receive. Little is known about how social distance between students and patients is experienced by learners during early clinical exposures in medical school. OBJECTIVE: This study aims to explore students' stories of experiencing social distance with patients with concordant and discordant social characteristics as themselves, respectively, as well as students' needs from medical curricula regarding developing social competence. METHODS: Semi-structured interviews of medical students [n = 16] were performed, and a post-interview survey and a visual analog scale were completed. The interviews were audio-recorded and transcribed. The written transcripts were coded using the constant comparison method and analyzed for emerging themes. RESULTS: Students experience social distance with patients; yet, they are not taught explicitly by their preceptors how to manage these experiences. Students identified their needs for the curriculum in regard to developing social competence and proposed various strategies and curriculum recommendations. CONCLUSIONS: Our results support that students believe that social competence training is important for their professional development to improve relationship building with diverse patients. As such, it would be valuable to incorporate student recommendations in the formation of a social competence curriculum. PMID- 29334302 TI - miRNAs as potential regulators of mTOR pathway in renal cell carcinoma. AB - Renal cell carcinoma (RCC) is the most commonly occurring solid cancer of the adult kidney with the majority of RCC cases being detected accidentally. The most aggressive subtype is clear cell RCC (ccRCC). miRNAs, a family of small noncoding RNAs regulating gene expression have been identified as key biological modulators. The von Hippel-Lindau pathway is one of the signaling pathways involved in the pathophysiology of ccRCC. Another oncogenic mechanism involves the activation of PI3K/AKT/mTOR signaling and serves as a central regulator of cell metabolism, proliferation and survival. Several studies have described the involvement of miRNA dysregulation in the pathogenesis and progression of ccRCC. These molecules can be considered as potential diagnostic and prognostic biomarkers, allowing response to therapy to be monitored. PMID- 29334303 TI - Enteral l-arginine supplementation for prevention of necrotizing enterocolitis in premature infants. PMID- 29334304 TI - Switching from laparoscopic radical prostatectomy to robot assisted laparoscopic prostatectomy: comparing oncological outcomes and complications. AB - OBJECTIVES: To compare oncological outcomes and complication rates based on the Clavien classification between laparoscopic radical prostatectomies (LRP) and robot-assisted laparoscopic radical prostatectomies (RALP). MATERIAL AND METHODS: In a prospective quality registry clinical data were consecutively entered for 544 LRP and 1081 RALP patients operated from 2003 to the end of 2012. Complications within 90 days postoperatively were assessed according to the Clavien classification and compared between LRP and RALP patients. Univariate and multivariate analyses of logistic regression were used to fit oncological outcomes and complication data. RESULTS: The mean operation time was 213 and 135 minutes in LRP and RALP patients, respectively. Pathological T3a stage (pT3a) in the RALP group was more frequent than in the LRP group, 32.4% versus 17.8%, respectively. For pT2 tumours, positive surgical margins (PSM) rate for LRP and RALP, was 20.3% vs 10.6%, respectively (p < .001). In the LRP group 74 patients (13.6%) reported 104 and in the RALP group 141 patients (13.0%) reported 177 complications (p = .75). Seventeen (3.1%) LRP patients and 15 (1.4%) RALP patients had Clavien grade IIIb complications (p = .017). Surgical reintervention was necessary in 14 patients (2.6%) and 17 patients (1.6%) in the LRP and RALP group, respectively (p = .04). CONCLUSION: Switching from LRP to RALP resulted in a much shorter operation time without compromising oncological outcome. There was no statistically significant difference in overall complication-rates between LRP and RALP. However, LRP patients had more serious complications and increased need for surgical reintervention compared to RALP patients. PMID- 29334305 TI - Twelve tips for teaching a comprehensive disease-focused course with a global perspective: A sickle cell disease example. AB - A disease-focused course entitled "Understanding Sickle Cell Disease: A Biopsychosocial Approach" addressed the complex nature of SCD using patient centered, global and interdisciplinary approaches. Sickle cell disease (SCD) is a rare inherited blood disorder that requires multidisciplinary care. Worldwide 20 25 million individuals have SCD, which is associated with a shortened lifespan due to many medical complications and social and behavioral health challenges. Health care professionals often have limited knowledge of SCD as they typically learn about it within the context of their own disciplines. This article provides twelve tips for educators that can be used to develop a similar course on any disease, with considerations for both low- and high-resource countries. The tips were devised from personal experience and available literature. Through these twelve tips, we provide a practical framework for increasing knowledge of complex diseases like SCD using a comprehensive elective course. PMID- 29334306 TI - Learning science as a potential new source of understanding and improvement for continuing education and continuing professional development. AB - Learning science is an emerging interdisciplinary field that offers educators key insights about what happens in the brain when learning occurs. In addition to explanations about the learning process, which includes memory and involves different parts of the brain, learning science offers effective strategies to inform the planning and implementation of activities and programs in continuing education and continuing professional development. This article provides a brief description of learning, including the three key steps of encoding, consolidation and retrieval. The article also introduces four major learning-science strategies, known as distributed learning, retrieval practice, interleaving, and elaboration, which share the importance of considerable practice. Finally, the article describes how learning science aligns with the general findings from the most recent synthesis of systematic reviews about the effectiveness of continuing medical education. PMID- 29334308 TI - Neuromuscular degenerative effects of Ankaferd Blood Stopper(r) in mouse sciatic nerve model. AB - PURPOSE: Ankaferd Blood Stopper(r) (ABS), a licenced medicinal herbal extract, is commonly used as an effective topical haemostatic agent. This study is designed to investigate whether topical ABS application may cause peripheral nerve degeneration and neuromuscular dysfunction in a mouse sciatic nerve model. METHODS: Twenty mice were randomly divided into two groups; an ABS treated experimental group and a saline-treated control group. Left sciatic nerves were treated with 0.3 ml of ABS in the experimental group and 0.3 ml of sterile saline in the control group for 5 min. Peripheral nerve degeneration and neuromuscular dysfunction were evaluated by behavioural tests, electrophysiological analysis and weight ratio comparison of target muscles. RESULTS: The motor function, assessed by the sciatic function index, was significantly impaired in ABS-treated animals as compared to the animals treated with saline. Motor coordination, evaluated with the rotarod test, was significantly decreased (-42%) in ABS treated animals compared to the saline-treated animals. The degree of pain, assessed by the reaction latency to thermal stimuli (hot-plate test), was significantly prolonged (313%) in ABS-treated mice when compared to the saline treated mice. ABS-treated mice showed a significant reduction in motor nerve conduction velocity (MNCV) (-52%) and the compound muscle action potential (CMAP) (-47%); however, it significantly prolonged onset latency (23%). The gastrocnemius muscles weight ratio of the ABS group was considerably lower than that of the control group. CONCLUSIONS: These findings demonstrate that ABS triggers peripheral nerve degeneration and functional impairment and, thus promotes a deterioration of sciatic nerves. PMID- 29334307 TI - Regorafenib regresses an imatinib-resistant recurrent gastrointestinal stromal tumor (GIST) with a mutation in exons 11 and 17 of c-kit in a patient-derived orthotopic xenograft (PDOX) nude mouse model. AB - Gastrointestinal stromal tumor (GIST) with a mutation in exons 11 and 17 of c-kit is a rare type of sarcoma. The aim of this study was to determine drug sensitivity for a regionally-recurrent case of GIST using a patient-derived orthotopic xenograft (PDOX) model. The PDOX model was established in the anterior wall of the stomach. GIST PDOX models were randomized into 5 groups of 6 mice each when the tumor volume reached 60 mm3: G1, control group; G2, imatinib group (oral administration (p.o.), daily, for 3 weeks); G3, sunitinib group (p.o., daily, for 3 weeks); G4, regorafenib (p.o., daily, for 3 weeks); G5, pazopanib (p.o., daily, for 3 weeks). All mice were sacrificed on day 22. Tumor volume was evaluated on day 0 and day 22 by laparotomy. Body weight were measured 2 times per week. Though regorafenib is third-line therapy for GIST, it was the most effective drug and regressed the tumor significantly (p < 0.001). Sunitinib suppressed tumor growth compared to the control group (p = 0.002). Imatinib, first-line therapy for GIST, and pazopanib did not have significant efficacy compared to the control group (p = 0.886, p = 0.766). The implications of this result is discussed for GIST patients. PMID- 29334309 TI - Effects of resisted sprint training on sprinting ability and change of direction speed in professional soccer players. AB - Resisted sprint training consists of performing overloaded sprints, which may produce greater effects than traditional sprint training. We compared a resisted sprint training with overload control versus an unresisted sprint training program on performance in soccer players. Eighteen elite athletes were randomly assigned to resisted (RST) or unresisted sprint training protocol (UR). Before and after a 6-week training period, sprinting ability, change of direction speed (COD), vertical jumps (SJ and CMJ), mean power (MP) and mean propulsive power (MPP) at distinct loads were assessed. Both groups improved sprinting ability at all distances evaluated (5m: UR = 8%, RST = 7%; 10m: UR = 5%, RST = 5%; 15m: UR = 4%, RST = 4%; 20m: UR = 3%, RST = 3%; 25m: UR = 2%, RST = 3%;), COD (UR = 6%; RST = 6%), SJ (UR = 15%; RST = 13%) and CMJ (UR = 15%; RST = 15%). Additionally, both groups increased MP and MPP at all loads evaluated. The between-group magnitude based inference analysis demonstrated comparable improvement ("trivial" effect) in all variables tested. Finally, our findings support the effectiveness of a short-term training program involving squat jump exercise plus sprinting exercises to improve the performance of soccer players. PMID- 29334310 TI - Dendritic polyglycerol nanoparticles show charge dependent bio-distribution in early human placental explants and reduce hCG secretion. AB - A thorough understanding of nanoparticle bio-distribution at the feto-maternal interface will be a prerequisite for their diagnostic or therapeutic application in women of childbearing age and for teratologic risk assessment. Therefore, the tissue interaction of biocompatible dendritic polyglycerol nanoparticles (dPG NPs) with first- trimester human placental explants were analyzed and compared to less sophisticated trophoblast-cell based models. First-trimester human placental explants, BeWo cells and primary trophoblast cells from human term placenta were exposed to fluorescence labeled, ~5 nm dPG-NPs, with differently charged surfaces, at concentrations of 1 uM and 10 nM, for 6 and 24 h. Accumulation of dPGs was visualized by fluorescence microscopy. To assess the impact of dPG-NP on trophoblast integrity and endocrine function, LDH, and hCG releases were measured. A dose- and charge-dependent accumulation of dPG-NPs was observed at the early placental barrier and in cell lines, with positive dPG-NP-surface causing deposits even in the mesenchymal core of the placental villi. No signs of plasma membrane damage could be detected. After 24 h we observed a significant reduction of hCG secretion in placental explants, without significant changes in trophoblast apoptosis, at low concentrations of charged dPG-NPs. In conclusion, dPG-NP's surface charge substantially influences their bio-distribution at the feto-maternal interface, with positive charge facilitating trans-trophoblast passage, and in contrast to more artificial models, the first-trimester placental explant culture model reveals potentially hazardous influences of charged dPG-NPs on early placental physiology. PMID- 29334311 TI - The surface chemistry determines the spatio-temporal interaction dynamics of quantum dots in atherosclerotic lesions. AB - AIM: To optimize the design of nanoparticles for diagnosis or therapy of vascular diseases, it is mandatory to characterize the determinants of nano-bio interactions in vascular lesions. MATERIALS & METHODS: Using ex vivo and in vivo microscopy, we analyzed the interactive behavior of quantum dots with different surface functionalizations in atherosclerotic lesions of ApoE-deficient mice. RESULTS: We demonstrate that quantum dots with different surface functionalizations exhibit specific interactive behaviors with distinct molecular and cellular components of the injured vessel wall. Moreover, we show a role for fibrinogen in the regulation of the spatio-temporal interaction dynamics in atherosclerotic lesions. CONCLUSION: Our findings emphasize the relevance of surface chemistry-driven nano-bio interactions on the differential in vivo behavior of nanoparticles in diseased tissue. PMID- 29334312 TI - Targeting of phospho-eIF4E by homoharringtonine eradicates a distinct subset of human acute myeloid leukemia. AB - More than half of the patients with acute myeloid leukemia (AML) fail to achieve long-term disease-free survival with current therapies and novel therapeutic strategies are urgently needed. The effects of homoharringtonine (HHT) on the growth of AML cell lines and primary leukemia cells were examined using MTT, colony formation assay. The effects of HHT on both eukaryotic translation initiation factor 4E (eIF4E) and phospho-eIF4E(p-eIF4E) were examined through western blot and immunofluorescence staining. HHT selectively reduced levels of p eIF4E and its downstream oncoprotein Mcl-1, and potently inhibited in vitro and in vivo the growth of a distinct subset of AML cells and primary leukemia cells expressing high level of p-eIF4E through apoptosis. Our findings suggest that HHT might be a first-in-class p-eIF4E-targeted drug and offer a novel therapeutic option for AML patients expressing high level of p-eIF4E. PMID- 29334314 TI - On the intrinsic constraint of bacterial growth rate: M. tuberculosis's view of the protein translation capacity. AB - In nature, the maximal growth rates vary widely among different bacteria species. Fast-growing bacteria species such as Escherichia coli can have a shortest generation time of 20 min. Slow-growing bacteria species are perhaps best known for Mycobacterium tuberculosis, a human pathogen with a generation time being no less than 16 h. Despite of the significant progress made on understanding the pathogenesis of M. tuberculosis, we know little on the origin of its intriguingly slow growth. From a global view, the intrinsic constraint of the maximal growth rate of bacteria remains to be a fundamental question in microbiology. In this review, we analyze and discuss this issue from the angle of protein translation capacity, which is the major demand for cell growth. Based on quantitative analysis, we propose four parameters: rRNA chain elongation rate, abundance of RNA polymerase engaged in rRNA synthesis, polypeptide chain elongation rate, and active ribosome fraction, which potentially limit the maximal growth rate of bacteria. We further discuss the relation of these parameters with the growth rate for M. tuberculosis as well as other bacterial species. We highlight future comprehensive investigation of these parameters for different bacteria species to understand how bacteria set their own specific growth rates. PMID- 29334313 TI - Pneumonia infection in mice reveals the involvement of the feoA gene in the pathogenesis of Acinetobacter baumannii. AB - Acinetobacter baumannii has emerged in the last decade as an important nosocomial pathogen. To identify genes involved in the course of a pneumonia infection, gene expression profiles were obtained from A. baumannii ATCC 17978 grown in mouse infected lungs and in culture medium. Gene expression analysis allowed us to determine a gene, the A1S_0242 gene (feoA), over-expressed during the pneumonia infection. In the present work, we evaluate the role of this gene, involved in iron uptake. The inactivation of the A1S_0242 gene resulted in an increase susceptibility to oxidative stress and a decrease in biofilm formation, in adherence to A549 cells and in fitness. In addition, infection of G. mellonella and pneumonia in mice showed that the virulence of the Delta0242 mutant was significantly attenuated. Data presented in this work indicated that the A1S_0242 gene from A. baumannii ATCC 17978 strain plays a role in fitness, adhesion, biofilm formation, growth, and, definitively, in virulence. Taken together, these observations show the implication of the feoA gene plays in the pathogenesis of A. baumannii and highlight its value as a potential therapeutic target. PMID- 29334315 TI - Interplay between p53 and Ink4c in spermatogenesis and fertility. AB - The tumor suppressor p53, and the cyclin-dependent kinase inhibitor Ink4c, have been both implicated in spermatogenesis control. Both p53-/- and Ink4c-/- single knockout male mice are fertile, despite testicular hypertrophy, Leydig cell differentiation defect, and increased sperm count in Ink4c-/- males. To investigate their collaborative roles, we studied p53-/- Ink4c-/- dual knockout animals, and found that male p53-/- Ink4c-/- mice have profoundly reduced fertility. Dual knockout male mice show a marked decrease in sperm count, abnormal sperm morphology and motility, prolongation of spermatozoa proliferation and delay of meiosis entry, and accumulation of DNA damage. Genetic studies showed that the effects of p53 loss on fertility are independent of its downstream effector Cdkn1a. Absence of p53 also partially reverses the hyperplasia seen upon Ink4c loss, and normalizes the Leydig cell differentiation defect. These results implicate p53 in mitigating both the delayed entry into meiosis and the secondary apoptotic response that occur in the absence of Ink4c. We conclude that the cell cycle genes p53 and Ink4c collaborate in sperm cell development and differentiation, and may be important candidates to investigate in human male infertility conditions. PMID- 29334316 TI - Potential therapeutic and economic value of risk-stratified treatment as initial treatment of multiple myeloma in Europe. AB - Biomarkers associated with prognosis in multiple myeloma (MM) can be used to stratify patients into risk categories. An attractive alternative to uniform treatment (UT), risk-stratified treatment (RST) is proposed where high-risk patients receive bortezomib-based regimens while standard-risk patients receive alternative less costly regimens. An early Markov-type decision analytic model evaluated the potential therapeutic and economic value of different RST strategies compared with UT in MM patients in key European countries. Results suggest RST strategies were both cheaper and more effective than UT across all countries, with the molecular marker-only strategy RST-SKY92 producing maximum health gains (0.031-0.039 QALYs). The conclusions remained consistent in the univariate sensitivity analyses. These findings should encourage stakeholders to support the adoption of RST approaches in MM. PMID- 29334317 TI - Fluctuation - a common but neglected pattern of physical activity behaviour: An exploratory review of studies in recent 20 years. AB - BACKGROUND: Regular physical activity (PA) is beneficial for physical and psychological well-being, yet many people do not achieve these health benefits due to irregular PA participation which is also known as fluctuation. Limited attention has been given to the phenomenon of fluctuation in the PA behaviour literature. OBJECTIVE: The aim of this review was to explore and to map definitions, measurements, behavioural evidence, and factors related to PA fluctuation. METHODS: Eligible studies were initially identified by a systematic search of articles conducted in four databases: Scopus, PubMed, PsycINFO, and SPORTDiscus between January 1996 and March 2016. Inclusion and exclusion criteria were set to check the eligibility of all articles. Additional articles were included by manual searching and expert recommendation. RESULTS: Fifteen articles were finally included. Definitions of fluctuation are understood from two perspectives, either as a stage in the process of behaviour change, or as a particular PA phenomenon consisting of lapse and readoption. Common features were extracted: behavioural irregularity, high risk of drop-out, intention and readiness for PA, low automaticity, and limited self-regulation. Furthermore, fluctuation identification was summarised in three approaches such as stage algorithm, self-identified PA lapse and readoption, and prospective within-person variation in meeting the PA guidelines. Regarding the empirical evidence, this review found that people in PA fluctuation were significantly distinct from those in preparation and maintenance of PA behavioural performance, as well as distinct in psychosocial features. CONCLUSIONS: Notwithstanding the limitations, this review has provided valuable insight into the phenomenon of PA fluctuation. PMID- 29334318 TI - Molecular dynamics perspective on the thermal stability of mandelate racemase. AB - Mandelate racemase from Pseudomonas putida is a promising candidate for the dynamic kinetic resolution of alpha-hydroxy carboxylic acids. In the present study, the thermal stability of mandelate racemase was investigated through molecular dynamics simulations in the temperature range of 303-363 K, which can guide the design of mandelate racemase with higher stability. The basic features such as radius of gyration, surface accessibility, and secondary structure content suggested the instability of mandelate racemase at high temperatures. With increase in temperature, alpha-helix content reduced significantly, especially the alpha-helices exposed to the environment. At the simulation time scale considered, intra-protein hydrogen bonds, hydrogen bonds between protein and water decreased at 363 K, while the number of salt-bridges increased. The long-distance networks remarkably changed at 363 K. A considerable number of long lived (percentage existence time higher than 90%) hydrogen bonds and Calpha contacts were lost. Root mean square fluctuation analysis revealed regions with high fluctuation, which should be helpful in the reengineering of mandelate racemase for enhanced thermal stability. PMID- 29334319 TI - Effect of Porphyromonas gingivalis infection in the placenta and umbilical cord in pregnant mice with low birth weight. AB - OBJECTIVE: Growing evidence indicates an association between periodontitis and delivery outcome; however, the mechanism is unclear. This study aimed to investigate the influence of Porphyromonas gingivalis (Pg) infection on delivery outcome in mice. MATERIALS AND METHODS: Bacteremia was induced in pregnant Slc:ICR mice (8 weeks old) by intravenous injection of Pg. Mice were randomly divided into a control group (CO), and those receiving Pg injection at gestational day 1 (GD1), gestational day 15 (GD15) or every day (ED). Delivery outcome, Pg infection, and gene expression in the placenta and umbilical cord were evaluated. RESULTS: Birth weight was lower in the ED and GD15 groups than in the CO group. A remarkable increase in anti-Pg IgG antibody was observed in the ED and GD1 groups, although Pg was not detected in the placenta or umbilical cord. mRNA expression of Tnfalpha and Il6 in the placenta, and Hif1alpha in the umbilical cord, was significantly increased in the ED group. Microarray analysis of the umbilical cord revealed increased expression of several genes including Orm1, Mgl2, Rps6ka3 and Trim15 in the ED group. CONCLUSIONS: Pg infection during the third trimester caused low birth weight and inflammation in the placenta and umbilical cord. PMID- 29334320 TI - Human dopamine transporter: the first implementation of a combined in silico/in vitro approach revealing the substrate and inhibitor specificities. AB - Parkinson's disease (PD) is characterized by the loss of dopamine-generating neurons in the substantia nigra and corpus striatum. Current treatments alleviate PD symptoms rather than exerting neuroprotective effect on dopaminergic neurons. New drugs targeting the dopaminergic neurons by specific uptake through the human dopamine transporter (hDAT) could represent a viable strategy for establishing selective neuroprotection. Molecules able to increase the bioactive amount of extracellular dopamine, thereby enhancing and compensating a loss of dopaminergic neurotransmission, and to exert neuroprotective response because of their accumulation in the cytoplasm, are required. By means of homology modeling, molecular docking, and molecular dynamics simulations, we have generated 3D structure models of hDAT in complex with substrate and inhibitors. Our results clearly reveal differences in binding affinity of these compounds to the hDAT in the open and closed conformations, critical for future drug design. The established in silico approach allowed the identification of promising substrate compounds that were subsequently analyzed for their efficiency in inhibiting hDAT dependent fluorescent substrate uptake, through in vitro live cell imaging experiments. Taken together, our work presents the first implementation of a combined in silico/in vitro approach enabling the selection of promising dopaminergic neuron-specific substrates. PMID- 29334321 TI - Biosynthesis of galactomannans found in filamentous fungi belonging to Pezizomycotina. AB - The galactomannans (GMs) that are produced by filamentous fungi belonging to Pezizomycotina, many of which are pathogenic for animals and plants, are polysaccharides consisting of alpha-(1->2)-/alpha-(1->6)-mannosyl and beta-(1->5) /beta-(1->6)-galactofuranosyl residues. GMs are located at the outermost layer of the cell wall. When a pathogenic fungus infects a host, its cell surface must be in contact with the host. The GMs on the cell surface may be involved in the infection mechanism of a pathogenic fungus or the defense mechanism of a host. There are two types of GMs in filamentous fungi, fungal-type galactomannans and O mannose type galactomannans. Recent biochemical and genetic advances have facilitated a better understanding of the biosynthesis of both types. This review summarizes our current information on their biosynthesis. PMID- 29334322 TI - Plasma brain-derived neurotrophic factor (pBDNF) and executive dysfunctions in patients with major depressive disorder. AB - OBJECTIVES: Executive dysfunctions are frequently seen in patients with major depressive disorder (MDD) and normalise in many cases during effective antidepressant therapy. This study investigated whether a normalisation of executive dysfunctions during antidepressant treatment correlates with or can be predicted by clinical parameters or levels of brain-derived neurotrophic factor (BDNF). METHODS: In 110 MDD patients with executive dysfunctions (percentile <16), executive functions and plasma BDNF levels were analysed at baseline, and days 14 and 56 of an antidepressant treatment. BDNF exon IV and P11 methylation status was studied at baseline. RESULTS: Eighty patients (73%) experienced a normalisation of executive dysfunctions, while 30 (27%) suffered from persistent dysfunctions until day 56. Patients with persistent dysfunctions had significantly higher HAMD scores at days 14 and 56, and lower plasma BDNF levels at each time point than patients with a normalisation of dysfunctions (F1= 10.18; P = 0.002). This was seen for verbal fluency, but not processing speed. BDNF exon IV and p11 promoter methylation was not associated with test performance. CONCLUSIONS: Our results corroborate a concomitant amelioration of executive dysfunctions with successful antidepressant therapy and support a role of BDNF in the neural mechanisms underlying the normalisation of executive dysfunctions in MDD. ClinicalTrials.gov number: NCT00974155; EudraCT: 2008-008280-96. PMID- 29334323 TI - Development of functional agricultural products utilizing the new health claim labeling system in Japan. AB - In April 2015, Consumer Affairs Agency of Japan launched a new food labeling system known as "Foods with Function Claims (FFC)." Under this system, the food industry independently evaluates scientific evidence on foods and describes their functional properties. As of May 23, 2017, 1023 FFC containing 8 fresh foods have been launched. Meanwhile, to clarify the health-promoting effects of agricultural products, National Agriculture and Food Research Organization (NARO) implemented the "Research Project on Development of Agricultural Products" and demonstrated the risk reduction of osteoporosis of beta-cryptoxanthin rich Satsuma mandarins and the anti-allergic effect of the O-methylated catechin rich tea cultivar Benifuuki. These foods were subsequently released as FFC. Moreover, NARO elucidated the health-promoting effects of various functional agricultural products (beta-glucan rich barley, beta-conglycinin rich soybean, quercetin rich onion, etc.) and a healthy boxed lunch. This review focuses on new food labeling system or research examining functional aspects of agricultural products. PMID- 29334324 TI - The rite of passage of becoming a humanitarian health worker: experiences of retention in Sweden. AB - BACKGROUND: Low retention of humanitarian workers poses constraints on humanitarian organisations' capacity to respond effectively to disasters. Research has focused on reasons for humanitarian workers leaving the sector, but little is known about the factors that can elucidate long-term commitment. OBJECTIVE: To understand what motivates and supports experienced humanitarian health workers to remain in the sector. METHODS: Semi-structured interviews were conducted with 10 experienced nurses who had been on at least three field missions with Medecins Sans Frontieres Sweden. Interviews explored factors influencing the decision to go on missions, how nurses were supported and how they looked back on those experiences. Transcripts were analysed through content analysis informed by van Gennep's concept of 'Rite of Passage', combined with elements of the self-determination theory. RESULTS: The findings indicate that their motivations and how nurses thought of themselves, as individuals and professionals, changed over time. For initiation and continued engagement in humanitarian work, participants were motivated by several personal and professional ambitions, as well as altruistic principles of helping others. When starting their first humanitarian missions, nurses felt vulnerable and had low self-esteem. However, through experiencing feelings of autonomy, competence and relatedness during missions, they underwent a process of change and gradually adjusted to new roles as humanitarian health workers. Reintegration in their home community, while maintaining the new roles and skills from the missions, proved very challenging. They individually found their own ways of overcoming the lack of social support they experienced after missions in order to sustain their continuation in the sector. CONCLUSIONS: The findings highlight the importance of social environments that facilitate and support the adjustment of individuals during and after field missions. Learning from positive examples, such as nurses with several years of experience, can strengthen strategies of retention, which can ultimately improve the delivery of humanitarian assistance. PMID- 29334325 TI - Concurrent validity and reliability of torso-worn inertial measurement unit for jump power and height estimation. AB - The purpose of the present study was to evaluate the concurrent validity and test retest repeatability of torso-worn IMU-derived power and jump height in a counter movement jump test. Twenty-seven healthy recreationally active males (age, 21.9 [SD 2.0] y, height, 1.76 [0.7] m, mass, 73.7 [10.3] kg) wore an IMU and completed three counter-movement jumps a week apart. A force platform and a 3D motion analysis system were used to concurrently measure the jumps and subsequently derive power and jump height (based on take-off velocity and flight time). The IMU significantly overestimated power (mean difference = 7.3 W/kg; P < 0.001) compared to force-platform-derived power but good correspondence between methods was observed (Intra-class correlation coefficient [ICC] = 0.69). IMU-derived power exhibited good reliability (ICC = 0.67). Velocity-derived jump heights exhibited poorer concurrent validity (ICC = 0.72 to 0.78) and repeatability (ICC = 0.68) than flight-time-derived jump heights, which exhibited excellent validity (ICC = 0.93 to 0.96) and reliability (ICC = 0.91). Since jump height and power are closely related, and flight-time-derived jump height exhibits excellent concurrent validity and reliability, flight-time-derived jump height could provide a more desirable measure compared to power when assessing athletic performance in a counter-movement jump with IMUs. PMID- 29334326 TI - Predicting the dopamine D2 receptor occupancy of ropinirole in rats using positron emission tomography and pharmacokinetic-pharmacodynamic modeling. AB - 1. The purpose of this study was to measure dopamine D2/3 receptor occupancy (RO) as a marker of the clinical efficacy of ropinirole in rats via positron emission tomography (PET) using 18F-fallypride as the radiotracer and to explore the relationship between dopamine RO and the plasma concentration of ropinirole via pharmacokinetic-pharmacodynamic modeling. 2. Plasma was collected from 16 rats treated with one of four doses of ropinirole. For the time-dependent study, the data of 16 rats in the 15 mg/kg dose group at four time points were averaged, and another 24 rats were divided into three dose groups (5 mg/kg, 30 mg/kg and 60 mg/kg) for the dose-dependent study; the animals were assessed via 18F-fallypride PET scans. The correlation between dopamine RO and the ropinirole plasma concentration was investigated, and a pharmacokinetic-pharmacodynamic (PK-PD) model was established with WinNonlin 6.3 software. Both the plasma concentration and the binding potential changed in a time- and dose-dependent manner, and the plasma concentration that induces 50% RO (EC50) as calculated by the PK-PD model was 1391 ng/mL. 3. 18F-fallypride appeared to be a suitable radiotracer for ropinirole imaging, and its binding to the dopamine D2 receptor has time- and concentration-dependent characteristics. A theory-based PK-PD model was developed to describe the relationship between the plasma ropinirole concentration and RO, providing a methodological foundation for noninvasive and in vivo clinical evaluations of ropinirole treatment. PMID- 29334327 TI - Migration of a Kirschner wire into the spinal cord: A case report and literature review. AB - CONTEXT: A Kirschner wire (K-wire) is a stainless steel pin with at least one sharpened tip that is mainly used for the internal fixation of bone fractures. While some cases of K-wire dislocation and migration have been reported as complications after fracture surgery, the intraspinal migration of a K-wire is rare. Herein, we report a case in which a K-wire used for sternal fixation 7 years earlier migrated into the spinal canal. FINDINGS: A 68-year-old male suddenly sustained severe radiating pain and numbness in his left upper extremity, and walked to our hospital. He had mild weakness in the left wrist extensor muscles and the left extensor digitorum. CT-myelography revealed a K wire penetrating into the spinal cord at C5-6. There was no injury of the trachea, esophagus, or blood vessels. The patient had a history of surgical infection after cardiovascular surgery seven years before, and had undergone surgical debridement and sternum fixation with two K-wires. One K-wire had broken, and part of it migrated upward. Using an anterior approach, we detected the tip of K-wire below the left sternocleidomastoid muscle. We cut the K-wire into 1 to 2-cm pieces and removed it piece by piece. His postoperative course was uneventful and the symptoms improved markedly after the surgery. CONCLUSION: This is the first report of a K-wire that had been used for sternal fixation migrating into the spinal cord. This case illustrates that although rare, it is possible for a K-wire to migrate upward after sternal fixation. PMID- 29334328 TI - Different durations within the method of best practice affect the parameters of the speed-duration relationship. AB - The aim of the study was to determine whether estimates of the speed-duration relationship are affected using different time-trial (TT) field-based testing protocols, where exhaustive times were located within the generally recommended durations of 2-15 min. Ten triathletes (mean +/- SD age: 31.0 +/- 5.7 years; height: 1.81 +/- 0.05 m; body mass: 76.5 +/- 6.8 kg) performed two randomly assigned field tests to determine critical speed (CS) and the total distance covered above CS (D). CS and D were obtained using two different protocols comprising three TT that were interspersed by 60 min passive rest. The TTs were 12, 7, and 3 min in Protocol I and 10, 5, and 2 min in Protocol II. A linear relationship of speed vs. the inverse of time (s = D * 1/t + CS) was used to determine parameter estimates. Significant differences were found for CS (p = 0.026), but not for D (p = 0.123). The effect size for CS (d = 0.305) was considered small, while that for D was considered moderate (d = 0.742). CS was significantly correlated between protocols (r = 0.934; p < 0.001), however, no correlation was found for D (r = 0.053; p = 0.884). The 95% limits of agreement were +/-0.28m s-1 and +/-73.9 m for CS and D, respectively. These findings demonstrate that the choice of exhaustive times within commonly accepted durations results in different estimates of CS and D, and thus protocols cannot be used interchangeably. The use of a consistent protocol is therefore recommended, when investigating or monitoring the speed-duration relationship estimates in well-trained athletes. PMID- 29334329 TI - Predictive value of metabolic syndrome definitions in patients with myocardial infarction with ST segment elevation - are they all the same? AB - OBJECTIVES: We sought to determine the predictive power of metabolic syndrome (MS) definitions on the prognosis in patients with myocardial infarction with ST segment elevation (STEMI). METHODS: We prospectively included 507 patients with STEMI who were admitted for primary percutaneous coronary intervention and could be identified for MS using the AHA-NHLBI, NCEP-ATP III and IDF definitions. After applying these criteria, we divided the group in patients with MS and without MS; we compared baseline characteristics, clinical findings and outcomes among these patients. RESULTS: The prevalence of MS was lowest with the NCEP-ATP III definition (37.87%), followed by the AHA-NHLBI definition (42.80%) and highest when using the IDF definition (44.38%). During follow-up, the occurrence of new myocardial infarction and new revascularization was significantly higher in patients with MS. Only in a group of patients with MS according to the NCEP-ATP III definition, a higher number of strokes were recorded. Multivariate analysis shows that MS according to the NCEP-ATP III definition was an independent predictor for MACE (OR 1.830, 95% CI 1.238-2.704, p = .002) but not for mortality. CONCLUSION: Metabolic syndrome according to the NCEP-ATP III definition was associated with increased risk of the development of new cardiovascular events among the patients with STEMI. PMID- 29334330 TI - The presence of free d-aspartate in marine macroalgae is restricted to the Sargassaceae family. AB - The presence of d-aspartate (d-Asp), a biologically rare amino acid, was evaluated in 38 species of marine macroalgae (seaweeds). Despite the ubiquitous presence of free l-Asp, free d-Asp was detected in only 5 species belonging to the Sargassaceae family of class Phaeophyceae (brown algae) but not in any species of the phyla Chlorophyta (green algae) and Rhodophyta (red algae). All other members of Phaeophyceae, including 3 species classified into the section Teretia of Sargassaceae did not contain d-Asp. These results indicate that the presence of free d-Asp in marine macroalgae is restricted only to the Sargassaceae family, excluding the species in the section Teretia. PMID- 29334331 TI - Transport mobility 5 years after stroke in an urban setting. AB - Background People after stroke may have residual problems with mobility that can affect their independence and mode of transport. However, there is limited knowledge about transport mobility several years after stroke. Objective The objective was to survey the outdoor mobility and transportation in an urban setting five years post-stroke. Method This cross-sectional study was based on a mail survey focusing on long-term consequences after stroke. The survey comprises a set of self-evaluated questionnaires and was sent to 457 persons, of whom 281 responded (61.5%). From the survey, items regarding transportation and mobility were selected and analyzed. Results A high level of mobility function was reported with regard to outdoor mobility and different modes of transport. However, one-fifth still reported problems with outdoor mobility and mode of transport. Some perceived barriers were reported, predominantly mobility aspects such as transfer to/from, and getting on/off specific transportation mode/s. The respondents reported some communication problems and cognitive impairments, but these were not reported as prominent barriers when using public transport. A total of 67% were active drivers and were more often men (p = 0.002), younger (p <= 0.001), and were less dependent at discharge from the acute hospital (p <= 0.001). Conclusions Five years post-stroke, mobility problems were the dominant barrier reported when using transport modes. Individualized transport training is needed during rehabilitation to increase possibility to participate. Infrastructure and transportation planning should focus on older, women, and people with impairments to be able to facilitate the use of public transport and mobility. PMID- 29334332 TI - Quantifying lower extremity and trunk function for dressing in stroke patients: a retrospective observational study. AB - Background Dressing performance relates strongly with balance function, and it is mainly influenced by the motor functions of the affected and unaffected lower extremity and trunk function in stroke patients. For the remedial approach to be effective, ascertaining the degree of function needed in the affected and unaffected lower extremities and trunk to achieve balance function requisite for dressing is necessary. Objectives This study aimed to elucidate standards of lower extremity and trunk function necessary for stroke patients to gain balance requisite for dressing. Methods The study included 105 first-time stroke patients, who were classified by Berg Balance Score >=44 or not and >=32 or not which are previously reported standard indicators for independent and supervision level in dressing. Receiver operating characteristic curves were determined for the stroke impairment assessment item of sensory and motor function of affected lower extremity, abdominal muscle strength, and knee extension muscle strength. Results Area under the curve was >=0.7 for all variables. In BBS 44-point analyses, the calculated cut-off values were 4 points for SIAS hip flexion, 4 points for SIAS knee extension, 2 points for SIAS foot pat on the affected side, 3 points for SIAS tactile and position sensation of the affected lower extremity, 3 points for SIAS abdominal muscle strength, and 3 points for SIAS knee extension muscle strength on the unaffected side. Conclusions These cut-off values can be used as targets for motor functions, when using the remedial approach for achieving dressing independence. PMID- 29334333 TI - Are people at high risk for diabetes visiting health facility for confirmation of diagnosis? A population-based study from rural India. AB - BACKGROUND: India is witnessing a rising burden of type 2 diabetes mellitus. India's National Programme for Prevention and Control of Diabetes, Cancer, Cardiovascular diseases and Stroke recommends population-based screening and referral to primary health centre for diagnosis confirmation and treatment initiation. However, little is known about uptake of confirmatory tests among screen positives. OBJECTIVE: To estimate the uptake of confirmatory tests and identify the reasons for not undergoing confirmation by those at high risk for developing diabetes. METHODS: We analysed data collected under project UDAY, a comprehensive diabetes and hypertension prevention and management programme, being implemented in rural Andhra Pradesh, India. Under UDAY, population-based screening for diabetes was carried out by project health workers using a diabetes risk score and capillary blood glucose test. Participants at high risk for diabetes were asked to undergo confirmatory tests. On follow-up visit, health workers assessed if the participant had undergone confirmation and ask for reasons if not so. RESULTS: Of the 35,475 eligible adults screened between April 2015 and August 2016, 10,960 (31%) were determined to be at high risk. Among those at high risk, 9670 (88%) were followed up, and of those, only 616 (6%) underwent confirmation. Of those who underwent confirmation, 'lack of symptoms of diabetes warranting visit to health facility' (52%) and 'being at high risk was not necessary enough to visit' (41%) were the most commonly reported reasons for non-confirmation. Inconvenient facility time (4.4%), no nearby facility (3.2%), un-affordability (2.2%) and long waiting time (1.6%) were the common health system-related factors that affected the uptake of the confirmatory test. CONCLUSION: Confirmation of diabetes was abysmally low in the study population. Low uptake of the confirmatory test might be due to low 'risk perception'. The uptake can be increased by improving the population risk perception through individual and/or community-focused risk communication interventions. PMID- 29334334 TI - Mortality after endovascular treatment of infrarenal abdominal aortic aneurysms - the newer the better? AB - Although endovascular repair of infrarenal abdominal aortic aneurysms (EVAR) presents a delicate alternative treatment for abdominal aortic aneurysms (AAA) with lower perioperative mortality, its long-term efficacy remains a matter of concern. The purpose of this study was to evaluate the currently reported mortality evidence after EVAR and to examine the possible effect of aneurysm status and the study period on mortality rates. The PubMed and Cochrane bibliographical databases were thoroughly searched for studies reporting on more than 1 000 patients with non-ruptured or ruptured infrarenal AAA, treated with EVAR from August 1991 to September 2016. A total of 10 910 titles/abstracts were retrieved and 121 studies were deemed relevant. Twenty-six studies met the inclusion criteria and reported on 354 500 patients with a mean age of 74.6 years. Almost all of the studies referred to elective EVAR and the mean aneurysm size was 5.58 cm. The most common early complication for elective EVAR was perioperative bleeding (1.9 %), whereas hospital-acquired pneumonia was a major concern in urgent EVAR (28.5 %). Conversion rate to open surgery was 1.2 %. The 30-day all-cause mortality rate was 4.84 % (1.7 % for non- ruptured aneurysms, 33.8 % for ruptured aneurysms).The overall all-cause late mortality in a mean follow-up period of 23.8 months was 19.1 %. The aneurysm-related late mortality rate was 3.4 %. With respect to the time period of patient enrollment, studies reporting on patients recruited before 2006 were found to face more secondary complications and higher late mortality rates than patients enrolled after 2005.The endovascular treatment of large and anatomically suitable infrarenal AAA in selected patients remains a safe alternative to open repair. Our findings demonstrate that newer studies show better long-term outcomes than the older ones, proposing a possible improvement of EVAR techniques and perioperative care and providing encouraging evidence for a wider application of EVAR. PMID- 29334335 TI - Simultaneous formation of polycyclic aromatic hydrocarbons (PAHs) and heterocyclic aromatic amines (HCAs) in gas-grilled beef satay at different temperatures. AB - This study investigated the simultaneous formation of polycyclic aromatic hydrocarbons (PAHs) and heterocyclic aromatic amines (HCAs) in gas-grilled beef satay at different temperatures (150, 200, 250, 300, and 350 degrees C). Solid phase extraction (SPE) was used for sample clean-up. Fifteen PAHs were determined using high performance liquid chromatography with fluorescence detection (HPLC FLD) and nine HCAs were quantified using liquid chromatography tandem-mass spectrometry (LC-MS/MS) with a gradient programme. The lowest significantly concentrations of PAHs and HCAs were generated at 150 degrees C; the formation of PAHs and HCAs simultaneously increased with temperatures. Benzo[a]pyrene was detected in all samples and increased markedly at 300 and 350 degrees C. The sums of 4 PAHs (PAH4) in marinated beef satay at 300 and 350 degrees C exceeded the maximum level in Commission Regulation (EU) 2015/1125. Significant reductions of polar and non-polar HCAs (except PhIP) were found in marinated beef satay across all temperatures. Overall, PAHs and HCAs showed opposite trends of formation in beef satay with marination. PMID- 29334336 TI - Engineering mechanical microenvironment of macrophage and its biomedical applications. AB - Macrophages are the most plastic cells in the hematopoietic system and can be widely found in almost all tissues. Recently studies have shown that mechanical cues (e.g., matrix stiffness and stress/strain) can significantly affect macrophage behaviors. Although existing reviews on the physical and mechanical cues that regulate the macrophage's phenotype are available, engineering mechanical microenvironment of macrophages in vitro as well as a comprehensive overview and prospects for their biomedical applications (e.g., tissue engineering and immunotherapy) has yet to be summarized. Thus, this review provides an overview on the existing methods for engineering mechanical microenvironment of macrophages in vitro and then a section on their biomedical applications and further perspectives are presented. PMID- 29334337 TI - Durable responses in refractory autoimmune hemolytic anemia with alemtuzumab. AB - Autoimmune hemolytic anemia occurs due to an interaction of IgG antibodies with protein antigens expressed on red blood corpuscles. Glucocorticoids are the mainstay of treatment for autoimmune hemolytic anemia. For patients not responding to initial therapy, other agents such as rituximab, immunosuppressive therapy, or splenectomy are considered. When refractory to these treatment options, alemtuzumab is an alternative agent. However, long-term outcomes of patients supporting its use are lacking. We present three patients with refractory autoimmune hemolytic anemia treated with alemtuzumab. PMID- 29334338 TI - At-home genital nerve stimulation for individuals with SCI and neurogenic detrusor overactivity: A pilot feasibility study. AB - OBJECTIVE: Neurogenic bladder dysfunction, including neurogenic detrusor overactivity (NDO) is one of the most clinically significant problems for persons with spinal cord injury (SCI), affecting health and quality of life. Genital nerve stimulation (GNS) can acutely inhibit NDO-related reflex bladder contractions and increase bladder capacity. However, it is unknown if GNS can improve urinary continence or help meet individuals' bladder management goals during sustained use, which is required for GNS to be clinically effective. DESIGN: Subjects maintained voiding diaries during a one-month control period without stimulation, one month with at-home GNS, and one month after GNS. Urodynamics and quality of life assessments were conducted after each treatment period, and a satisfaction survey was taken at study completion. SETTING: Subject screening and clinical procedures were conducted at the Louis Stokes Cleveland VA Medical Center. Stimulation use and voiding diary entries were conducted in subjects' homes. PARTICIPANTS: Subjects included five men with SCI and NDO. INTERVENTIONS: This study tested one month of at-home portable non-invasive GNS. OUTCOME MEASURES: The primary outcome measure was leakage events per day. Secondary outcome measures included self-reported subject satisfaction, bladder capacity, and stimulator use frequency. RESULTS: GNS reduced the number of leakage events from 1.0 +/- 0.5 to 0.1 +/- 0.4 leaks per day in the four subjects who reported incontinence data. All study participants were satisfied that GNS met their bladder goals; wanted to continue using GNS; and would recommend it to others. CONCLUSIONS: Short term at-home GNS reduced urinary incontinence and helped subjects meet their bladder management goals. These data inform the design of a long-term clinical trial testing of GNS as an approach to reduce NDO. PMID- 29334339 TI - Impact of spasticity on transfers and activities of daily living in individuals with spinal cord injury. AB - CONTEXT/OBJECTIVE: For persons with spinal cord injury, spasticity commonly interferes with activities of daily living such as transfers. Electromyography can be used to objectively measure muscle spasms during transfers, but how electromyographic measures relate to the impact spasticity has on life, or to clinically-rated spasticity, is unclear. We aimed to characterize relationships among spasm duration and magnitude, impact of spasticity on daily life, and a clinical measure of extensor spasticity, as well as to determine reliability of the electromyographic measures. DESIGN: Participants (N=19) underwent electromyographic measurements of involuntary muscle activity (spasm duration and magnitude) evoked in quadriceps muscles during transfers on two days. Impact of spasticity on daily life was measured with the Spinal Cord Injury Spasticity Evaluation Tool. Clinically-rated spasticity severity was measured with the Spinal Cord Assessment Tool for Spastic reflexes. RESULTS: No significant associations were found between impact of spasticity and spasm duration, spasm magnitude, or clinical extensor spasticity score. Absolute and normalized spasm duration were positively associated with clinical extensor spasticity score (rho=0.510-0.667, P < 0.05). Spasm measures during transfers had good to excellent day-to-day reliability (rho=0.656-0.846, P < 0.05). CONCLUSIONS: Electromyographic and clinical measures of involuntary activity in the lower extremity do not significantly relate to perceived impact of spasticity on daily life. However, quadriceps spasm duration during transfers is related to clinically-rated extensor spasticity. Electromyography is a reliable method of quantifying quadriceps spasms during transfers. Future investigations should identify factors that influence the impact of spasticity on life, which may help direct treatment strategies to reduce problematic impact. PMID- 29334340 TI - Identification of anti-filarial leads against aspartate semialdehyde dehydrogenase of Wolbachia endosymbiont of Brugia malayi: combined molecular docking and molecular dynamics approaches. AB - Lymphatic filariasis is a debilitating vector borne parasitic disease that infects human lymphatic system by nematode Brugia malayi. Currently available anti-filarial drugs are effective only on the larval stages of parasite. So far, no effective drugs are available for humans to treat filarial infections. In this regard, aspartate semialdehyde dehydrogenase (ASDase) in lysine biosynthetic pathway from Wolbachia endosymbiont Brugia malayi represents an attractive therapeutic target for the development of novel anti-filarial agents. In this present study, molecular modeling combined with molecular dynamics simulations and structure-based virtual screening were performed to identify potent lead molecules against ASDase. Based on Glide score, toxicity profile, binding affinity and mode of interactions with the ASDase, five potent lead molecules were selected. The molecular docking and dynamics results revealed that the amino acid residues Arg103, Asn133, Cys134, Gln161, Ser164, Lys218, Arg239, His246, and Asn321 plays a crucial role in effective binding of Top leads into the active site of ASDase. The stability of the ASDase-lead complexes was confirmed by running the 30 ns molecular dynamics simulations. The pharmacokinetic properties of the identified lead molecules are in the acceptable range. Furthermore, density functional theory and binding free energy calculations were performed to rank the lead molecules. Thus, the identified lead molecules can be used for the development of anti-filarial agents to combat the pathogenecity of Brugia malayi. PMID- 29334341 TI - Thyroid-Related Research in Japan A Spotlight on Recent Important Contributions. PMID- 29334343 TI - Breast-Milk Iodine Concentrations and Iodine Levels of Infants According to the Iodine Status of the Country of Residence: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Iodine, an essential micronutrient, plays a critical role in normal growth and development, especially during the first two years of life. This systematic review and meta-analysis is among the first to evaluate breast-milk iodine concentrations and infant iodine status in countries characterized by iodine sufficiency or deficiency. METHODS: PubMed, Web of Science, Cochrane Library, Google Scholar, and other relevant databases, as well as reference lists of previous reviews, were searched for relevant studies published between 1986 and 2016. Mean or median breast-milk and infant urinary iodine concentrations, along with other relevant data, were extracted from eligible studies. Each study was assessed for quality and risk of bias. RESULTS: Of the 496 identified studies, 57 met the criteria for inclusion in the meta-analysis. The mean (confidence interval [CI]) iodine concentrations in maternal colostrum were 152.0 MUg/L [CI 106.2-198.7 MUg/L] and 57.8 MUg/L [CI 41.4-74.1 MUg/L] in iodine sufficient and -deficient countries, respectively, indicating a significant difference between the two iodine statuses. By contrast, the corresponding values in mature milk did not differ significantly between mothers in iodine-sufficient and -deficient countries (71.5 MUg/L [CI 51.0-92.0 MUg/L] and 28.0 MUg/L [CI 13.8 to 69.9 MUg/L], respectively]. The weighted urinary iodine levels [CIs] of breast-fed infants in iodine-sufficient countries were significantly higher than those in iodine-deficient countries (164.5 MUg/L [CI 116.4-212.7 MUg/L] vs. 70.4 MUg/L [CI 46.2-94.6 MUg/L]). Similarly, a significant difference was observed in the pooled estimates of urinary iodine levels [CIs] among formula-fed infants in iodine-sufficient versus iodine-deficient countries (310.3 MUg/L [CI 287.4-342.1 MUg/L] vs. 38.3 MUg/L [CI 23.4-53.2 MUg/L]). CONCLUSION: The meta-analysis reveals that in iodine-sufficient countries, the mean iodine concentrations in colostrum and mature breast milk corresponded to iodine sufficiency among infants. The results are thus compatible with the international recommendation that lactating women and infants younger than two years of age who reside in iodine-sufficient countries do not require iodine supplementation. PMID- 29334345 TI - Arm crank ergometry improves cardiovascular disease risk factors and community mobility independent of body composition in high motor complete spinal cord injury. AB - OBJECTIVE: Evaluate the effect of aerobic exercise using arm crank ergometry (ACE) in high motor complete (ISNCSCI A/B) spinal cord injury (SCI) as primarily related to cardiovascular disease (CVD) risk factors and functional mobility and secondarily to body composition and metabolic profiles. DESIGN: Longitudinal interventional study at an academic medical center. METHODS: Ten previously untrained participants (M8/F2, Age 36.7 y +/- 10.1, BMI 24.5 +/- 6.0) with high motor complete SCI (C7-T5) underwent ACE exercise training 30 minutes/day * 3 days/week for 10 weeks at 70% VO2Peak. OUTCOME MEASURES: Primary outcome measures were pre- and post-intervention changes in markers of cardiovascular fitness (graded exercise testing (GXT): VO2, VO2Peak, respiratory quotient [RQ], GXT time, peak power, and energy expenditure [EE]) and community mobility (time to traverse a 100ft-5 degrees ramp, and 12-minute WC propulsion test). Secondary outcome measures were changes in body composition and metabolic profiles (fasting and area under the curve for glucose and insulin, homeostasis model assessment [HOMA] for %beta-cell activity [%beta], %insulin sensitivity [%S], and insulin resistance [IR], and Matsuda Index [ISIMatsuda]). RESULTS: Resting VO2, relative VO2Peak, absolute VO2Peak, peak power, RQ, 12-minute WC propulsion, fasting insulin, fasting G:I ratio, HOMA-%S, and HOMA-IR all significantly improved following intervention (P < 0.05). There were no changes in body composition (P>0.05). CONCLUSIONS: Ten weeks of ACE at 70% VO2Peak in high motor complete SCI improves aerobic capacity, community mobility, and metabolic profiles independent of changes in body composition. PMID- 29334346 TI - In this issue: Prerequisites for precision medicine are genomics, computerised medical record systems, and big data analytics. PMID- 29334344 TI - Content validity and satisfaction with a caregiver-integrated web-based rehabilitation intervention for persons with stroke. AB - Background Family members provide valuable contributions during rehabilitation after stroke, but frequently report higher incidences of burden, depression, and social isolation during caregiving. Thus, effective interventions to reduce stroke impact on the family are needed. Objectives To evaluate the content validity and satisfaction of a caregiver-focused web-based intervention designed to improve stroke survivor physical function while reducing caregiver negative outcomes. Methods Caregivers of individuals with stroke (N = 6) and expert rehabilitation researchers (N = 4) were presented with a novel, web-based intervention (CARE-CITE) designed to foster problem-solving and skill-building while facilitating caregiver involvement during constraint-induced movement therapy. Caregivers rated CARE-CITE for usefulness, ease of use, acceptability, and time to complete. Rehabilitation experts evaluated content for accuracy, feasibility, acceptability, problem relevance and ease of use. Ratings were assessed using a five-point Likert-type response scales (1 = strongly disagree to 5 = strongly agree). Results On average, all caregivers agreed or strongly agreed that the modules were useful (4.42), easy to use (4.60), and acceptable (4.41). Mean total satisfaction score was 4.45, and average review time was 15 min per module. Expert reviewers agreed or strongly agreed that each module was accurate (4.95), feasible (4.8), easy to use (4.86), acceptable (4.96), and had appropriate problem relevance (4.65). Conclusions The CARE-CITE intervention may be a viable program for caregivers of patients with stroke. Currently a pilot study is underway to evaluate the impact of the intervention on caregiver mental health, family conflict around stroke recovery and stroke survivor upper extremity function. PMID- 29334347 TI - Methods to Describe Referral Patterns in a Canadian Primary Care Electronic Medical Record Database: Modelling Multilevel Count Data. AB - BACKGROUND: A referral from a family physician (FP) to a specialist is an inflection point in the patient journey, with potential implications for clinical outcomes and health policy. Primary care electronic medical record (EMR) databases offer opportunities to examine referral patterns. Until recently, software techniques were not available to model these kinds of multi-level count data. OBJECTIVE: To establish methodology for determining referral rates from FPs to medical specialists using the Canadian Primary Care Sentinel Surveillance Network (CPCSSN) EMR database. METHOD: Retrospective cohort study, mixed effects and multi-level negative binomial regression modelling with 87,258 eligible patients between 2007 and 2012. Mean referrals compared by patient sex, age, chronic conditions, FP visits, and urban/rural practice location. Proportion of variance in referral rates attributable to the patient and practice levels. RESULTS: On average, males had 0.26, and females 0.31 referrals in a 12-month period. Referrals were significantly higher for females, increased with age, FP visits, and number of chronic conditions (p<.0001). Overall, 14% of the variance in referrals could be attributed to the practice level, and 86% to patient level characteristics. CONCLUSIONS: Both patient and practice characteristics influenced referral patterns. The methodologic insights gained from this study have relevance to future studies on many research questions that utilize count data, both within primary care and broader health services research. The utility of the CPCSSN database will continue to increase in tandem with data quality improvements, providing a valuable resource to study Canadian referral patterns over time. PMID- 29334348 TI - Assessing the readiness of precision medicine interoperabilty: An exploratory study of the National Institutes of Health genetic testing registry. AB - BACKGROUND: Precision medicine involves three major innovations currently taking place in healthcare: electronic health records, genomics, and big data. A major challenge for healthcare providers, however, is understanding the readiness for practical application of initiatives like precision medicine. OBJECTIVE: To better understand the current state and challenges of precision medicine interoperability using a national genetic testing registry as a starting point, placed in the context of established interoperability formats. METHODS: We performed an exploratory analysis of the National Institutes of Health Genetic Testing Registry. Relevant standards included Health Level Seven International Version 3 Implementation Guide for Family History, the Human Genome Organization Gene Nomenclature Committee (HGNC) database, and Systematized Nomenclature of Medicine - Clinical Terms (SNOMED CT). We analyzed the distribution of genetic testing laboratories, genetic test characteristics, and standardized genome/clinical code mappings, stratified by laboratory setting. RESULTS: There were a total of 25472 genetic tests from 240 laboratories testing for approximately 3632 distinct genes. Most tests focused on diagnosis, mutation confirmation, and/or risk assessment of germline mutations that could be passed to offspring. Genes were successfully mapped to all HGNC identifiers, but less than half of tests mapped to SNOMED CT codes, highlighting significant gaps when linking genetic tests to standardized clinical codes that explain the medical motivations behind test ordering. Conclusion: While precision medicine could potentially transform healthcare, successful practical and clinical application will first require the comprehensive and responsible adoption of interoperable standards, terminologies, and formats across all aspects of the precision medicine pipeline. PMID- 29334349 TI - Research Outputs of England's Hospital Episode Statistics (HES) Database: Bibliometric Analysis. AB - BACKGROUND: Hospital administrative data, such as those provided by the Hospital Episode Statistics (HES) database in England, are increasingly being used for research and quality improvement. To date, no study has tried to quantify and examine trends in the use of HES for research purposes. OBJECTIVE: To examine trends in the use of HES data for research. METHODS: Publications generated from the use of HES data were extracted from PubMed and analysed. Publications from 1996 to 2014 were then examined further in the Science Citation Index (SCI) of the Thompson Scientific Institute for Science Information (Web of Science) for details of research specialty area. RESULTS: 520 studies, categorised into 44 specialty areas, were extracted from PubMed. The review showed an increase in publications over the 18-year period with an average of 27 publications per year, however with the majority of output observed in the latter part of the study period. The highest number of publications was in the Health Statistics specialty area. CONCLUSION: The use of HES data for research is becoming more common. Increase in publications over time shows that researchers are beginning to take advantage of the potential of HES data. Although HES is a valuable database, concerns exist over the accuracy and completeness of the data entered. Clinicians need to be more engaged with HES for the full potential of this database to be harnessed. PMID- 29334350 TI - Bespoke automation of medical workforce rostering using Google's free cloud applications. AB - BACKGROUND: Providing safe and consistent care requires optimal deployment of medical staff. Ensuring this happens is a significant administrative burden due to complex working patterns. OBJECTIVE: To describe a pilot feasibility study of the automation of medical duty rostering in a busy tertiary Ophthalmology department. METHODS: A cloud based web application was created using Google's free cloud services. Users access the system via a website which hosts live rosters, and use electronic forms to submit requests which are automatically handled by Google App Scripts. RESULTS: Over a 2-year period (8/2014-6/2016), the system processed 563 leave requests and 300 on call swaps automatically. 3,300 emails and 1,000 forms were automatically generated. User satisfaction was 100% (n=24). DISCUSSION: Many time consuming aspects of roster management were automated with significant time savings to all parties, allowing increased clinical time for doctors involved in administration. Planning for safe staffing levels was supported. PMID- 29334351 TI - Integrating third-party telehealth records with the general practice electronic medical record system: a solution. AB - BACKGROUND: The implementation of telemonitoring at scale has been less successful than anticipated, often hindered by clinicians' perceived increase in workload. One important factor has been the lack of integration of patient generated data (PGD) with the electronic medical record (EMR). Clinicians have had problems accessing PGD on telehealth systems especially in patient consultations in primary care. OBJECTIVE: To design a method to produce a report of PGD that is available to clinicians through their routine EMR system. METHOD: We modelled a system with a use case approach using Unified Modelling Language to enable us to design a method of producing the required report. Anonymised PGD are downloaded from a third-party telehealth system to National Health Service (NHS) systems and linked to the patient record available in the hospital recording system using the patient NHS ID through an interface accessed by healthcare professionals. The telehealth data are then processed into a report using the patient record. This report summarises the readings in graphical and tabular form with an average calculated and with a recommended follow-up suggested if required. The report is then disseminated to general practitioner practices through routine document distribution pathways. RESULTS: This addition to the telehealth system is viewed positively by clinicians. It has helped to greatly increase the number of general practices using telemonitoring to manage blood pressure in NHS Lothian. PMID- 29334352 TI - The Multimorbidity Cluster Analysis Tool: Identifying Combinations and Permutations of Multiple Chronic Diseases Using a Record-Level Computational Analysis. AB - INTRODUCTION: Multimorbidity, or the co-occurrence of multiple chronic health conditions within an individual, is an increasingly dominant presence and burden in modern health care systems. To fully capture its complexity, further research is needed to uncover the patterns and consequences of these co-occurring health states. As such, the Multimorbidity Cluster Analysis Tool and the accompanying Multimorbidity Cluster Analysis Toolkit have been created to allow researchers to identify distinct clusters that exist within a sample of participants or patients living with multimorbidity. Development: The Tool and Toolkit were developed at Western University in London, Ontario, Canada. This open-access computational program (JAVA code and executable file) was developed and tested to support an analysis of thousands of individual records and up to 100 disease diagnoses or categories. APPLICATION: The computational program can be adapted to the methodological elements of a research project, including type of data, type of chronic disease reporting, measurement of multimorbidity, sample size and research setting. The computational program will identify all existing, and mutually exclusive, combinations and permutations within the dataset. An application of this computational program is provided as an example, in which more than 75,000 individual records and 20 chronic disease categories resulted in the detection of 10,411 unique combinations and 24,647 unique permutations among female and male patients. DISCUSSION: The Tool and Toolkit are now available for use by researchers interested in exploring the complexities of multimorbidity. Its careful use, and the comparison between results, will be valuable additions to the nuanced understanding of multimorbidity. PMID- 29334353 TI - Genesis of a UK Faculty of Clinical Informatics at a time of anticipation for some, and ruby, golden and diamond celebrations for others. AB - This Editorial marks the launch of the UK Faculty of Clinical Informatics (FCI) at the time when non-clinically qualified informaticians are anticipating the lauch of the Federation of Informatics Professionals in Health and Care (Fed IP). PMID- 29334354 TI - Real World Evidence to an eHealth tool: The 2017 top ten papers from Journal of Innovation in Health Informatics. AB - We report the top ten papers published by the Journal ofInnovation in Health Informatics in 2017. PMID- 29334355 TI - Retraction: Genetic characterization and assessment of demographic bottleneck in Caspian horse population. AB - [This delete the article DOI: 10.14715/cmb/2017.63.11.16.]. PMID- 29334358 TI - Fingerprints of a position-dependent Fermi velocity on scanning tunnelling spectra of strained graphene. AB - Nonuniform strain in graphene induces a position dependence of the Fermi velocity, as recently demonstrated by scanning tunnelling spectroscopy experiments. In this work, we study the effects of a position-dependent Fermi velocity on the local density of states (LDOS) of strained graphene, with and without the presence of a uniform magnetic field. The variation of LDOS obtained from tight-binding calculations is successfully explained by analytical expressions derived within the Dirac approach. These expressions also rectify a rough Fermi velocity substitution used in the literature that neglects the strain induced anisotropy. The reported analytical results could be useful for understanding the nonuniform strain effects on scanning tunnelling spectra of graphene, as well as when it is exposed to an external magnetic field. PMID- 29334356 TI - p53 orchestrates DNA replication restart homeostasis by suppressing mutagenic RAD52 and POLtheta pathways. AB - Classically, p53 tumor suppressor acts in transcription, apoptosis, and cell cycle arrest. Yet, replication-mediated genomic instability is integral to oncogenesis, and p53 mutations promote tumor progression and drug-resistance. By delineating human and murine separation-of-function p53 alleles, we find that p53 null and gain-of-function (GOF) mutations exhibit defects in restart of stalled or damaged DNA replication forks that drive genomic instability, which isgenetically separable from transcription activation. By assaying protein-DNA fork interactions in single cells, we unveil a p53-MLL3-enabled recruitment of MRE11 DNA replication restart nuclease. Importantly, p53 defects or depletion unexpectedly allow mutagenic RAD52 and POLtheta pathways to hijack stalled forks, which we find reflected in p53 defective breast-cancer patient COSMIC mutational signatures. These data uncover p53 as a keystone regulator of replication homeostasis within a DNA restart network. Mechanistically, this has important implications for development of resistance in cancer therapy. Combined, these results define an unexpected role for p53-mediated suppression of replication genome instability. PMID- 29334359 TI - Electronic and optical properties of spinel zinc ferrite: ab initio hybrid functional calculations. AB - Spinel ferrites in general show a rich interplay of structural, electronic, and magnetic properties. Here, we particularly focus on zinc ferrite (ZFO), which has been observed experimentally to crystallise in the cubic normal spinel structure. However, its magnetic ground state is still under dispute. In addition, some unusual magnetic properties in ZFO thin films or nanostructures have been explained by a possible partial cation inversion and a different magnetic interaction between the two cation sublattices of the spinel structure compared to the crystalline bulk material. Here, density functional theory has been applied to investigate the influence of different inversion degrees and magnetic couplings among the cation sublattices on the structural, electronic, magnetic, and optical properties. Effects of exchange and correlation have been modelled using the generalised gradient approximation (GGA) together with the Hubbard '+U' parameter, and the more elaborate hybrid functional PBE0. While the GGA+U calculations yield an antiferromagnetically coupled normal spinel structure as the ground state, in the PBE0 calculations the ferromagnetically coupled normal spinel is energetically slightly favoured, and the hybrid functional calculations perform much better with respect to structural, electronic and optical properties. PMID- 29334357 TI - Differential requirements of androgen receptor in luminal progenitors during prostate regeneration and tumor initiation. AB - Master regulatory genes of tissue specification play key roles in stem/progenitor cells and are often important in cancer. In the prostate, androgen receptor (AR) is a master regulator essential for development and tumorigenesis, but its specific functions in prostate stem/progenitor cells have not been elucidated. We have investigated AR function in CARNs (CAstration-Resistant Nkx3.1-expressing cells), a luminal stem/progenitor cell that functions in prostate regeneration. Using genetically--engineered mouse models and novel prostate epithelial cell lines, we find that progenitor properties of CARNs are largely unaffected by AR deletion, apart from decreased proliferation in vivo. Furthermore, AR loss suppresses tumor formation after deletion of the Pten tumor suppressor in CARNs; however, combined Pten deletion and activation of oncogenic Kras in AR-deleted CARNs result in tumors with focal neuroendocrine differentiation. Our findings show that AR modulates specific progenitor properties of CARNs, including their ability to serve as a cell of origin for prostate cancer. PMID- 29334360 TI - Self-consistent description of local density dynamics in simple liquids. The case of molten lithium. AB - The dynamic structure factor is the quantity, which can be measured by means of Brillouin light-scattering as well as by means of inelastic scattering of neutrons and x-rays. The spectral (or frequency) moments of the dynamic structure factor define directly the sum rules of the scattering law. The theoretical scheme formulated in this study allows one to describe the dynamics of local density fluctuations in simple liquids and to obtain the expression of the dynamic structure factor in terms of the spectral moments. The theory satisfies all the sum rules, and the obtained expression for the dynamic structure factor yields correct extrapolations into the hydrodynamic limit as well as into the free-particle dynamics limit. We discuss correspondence of this theory with the generalized hydrodynamics and with the viscoelastic models, which are commonly used to analyze the data of inelastic neutron and x-ray scattering in liquids. In particular, we reveal that the postulated condition of the viscoelastic model for the memory function can be directly obtained within the presented theory. The dynamic structure factor of liquid lithium is computed on the basis of the presented theory, and various features of the scattering spectra are evaluated. It is found that the theoretical results are in agreement with inelastic x-ray scattering data. PMID- 29334361 TI - Engineering the spin polarization of one-dimensional electrons. AB - We present results of magneto-focusing on the controlled monitoring of spin polarization within a one-dimensional (1D) channel, and its subsequent effect on modulating the spin-orbit interaction (SOI) in a 2D GaAs electron gas. We demonstrate that electrons within a 1D channel can be partially spin polarized as the effective length of the 1D channel is varied in agreement with the theoretical prediction. Such polarized 1D electrons when injected into a 2D region result in a split in the odd-focusing peaks, whereas the even peaks remain unaffected (single peak). On the other hand, the unpolarized electrons do not affect the focusing spectrum and the odd and even peaks remain as single peaks, respectively. The split in odd-focusing peaks is evidence of direct measurement of spin polarization within a 1D channel, where each sub-peak represents the population of a particular spin state. Confirmation of the spin splitting is determined by a selective modulation of the focusing peaks due to the Zeeman energy in the presence of an in-plane magnetic field. We suggest that the SOI in the 2D regime is enhanced by a stream of polarized 1D electrons. The spatial control of spin states of injected 1D electrons and the possibility of tuning the SOI may open up a new regime of spin-engineering with application in future quantum information schemes. PMID- 29334362 TI - Investigation of resistance switching in SiO x RRAM cells using a 3D multi-scale kinetic Monte Carlo simulator. AB - We employ an advanced three-dimensional (3D) electro-thermal simulator to explore the physics and potential of oxide-based resistive random-access memory (RRAM) cells. The physical simulation model has been developed recently, and couples a kinetic Monte Carlo study of electron and ionic transport to the self-heating phenomenon while accounting carefully for the physics of vacancy generation and recombination, and trapping mechanisms. The simulation framework successfully captures resistance switching, including the electroforming, set and reset processes, by modeling the dynamics of conductive filaments in the 3D space. This work focuses on the promising yet less studied RRAM structures based on silicon rich silica (SiO x ) RRAMs. We explain the intrinsic nature of resistance switching of the SiO x layer, analyze the effect of self-heating on device performance, highlight the role of the initial vacancy distributions acting as precursors for switching, and also stress the importance of using 3D physics based models to capture accurately the switching processes. The simulation work is backed by experimental studies. The simulator is useful for improving our understanding of the little-known physics of SiO x resistive memory devices, as well as other oxide-based RRAM systems (e.g. transition metal oxide RRAMs), offering design and optimization capabilities with regard to the reliability and variability of memory cells. PMID- 29334363 TI - Macrophage membrane-coated iron oxide nanoparticles for enhanced photothermal tumor therapy. AB - Nanotechnology possesses the potential to revolutionize the diagnosis and treatment of tumors. The ideal nanoparticles used for in vivo cancer therapy should have long blood circulation times and active cancer targeting. Additionally, they should be harmless and invisible to the immune system. Here, we developed a biomimetic nanoplatform with the above properties for cancer therapy. Macrophage membranes were reconstructed into vesicles and then coated onto magnetic iron oxide nanoparticles (Fe3O4 NPs). Inherited from the Fe3O4 core and the macrophage membrane shell, the resulting Fe3O4@MM NPs exhibited good biocompatibility, immune evasion, cancer targeting and light-to-heat conversion capabilities. Due to the favorable in vitro and in vivo properties, biomimetic Fe3O4@MM NPs were further used for highly effective photothermal therapy of breast cancer in nude mice. Surface modification of synthetic nanomaterials with biomimetic cell membranes exemplifies a novel strategy for designing an ideal nanoplatform for translational medicine. PMID- 29334364 TI - Compactness of viral genomes: effect of disperse and localized random mutations. AB - Genomes of single-stranded RNA viruses have evolved to optimize several concurrent properties. One of them is the architecture of their genomic folds, which must not only feature precise structural elements at specific positions, but also allow for overall spatial compactness. The latter was shown to be disrupted by random synonymous mutations, a disruption which can consequently negatively affect genome encapsidation. In this study, we use three mutation schemes with different degrees of locality to mutate the genomes of phage MS2 and Brome Mosaic virus in order to understand the observed sensitivity of the global compactness of their folds. We find that mutating local stretches of their genomes' sequence or structure is less disruptive to their compactness compared to inducing randomly-distributed mutations. Our findings are indicative of a mechanism for the conservation of compactness acting on a global scale of the genomes, and have several implications for understanding the interplay between local and global architecture of viral RNA genomes. PMID- 29334365 TI - 12th FluoroFest International Workshop April 24-26, 2017. PMID- 29334366 TI - Modified Colistin Regimen for Critically Ill Patients with Acute Renal Impairment and Continuous Renal Replacement Therapy. AB - Colistin is a last resort antibiotic to treat multidrug-resistant Gram-negative bacteria infections. Colistin is administered intravenously in the form of its inactive prodrug colistin methanesulfonate (CMS). For patients with acute kidney impairment and continuous renal replacement therapy high extracorporeal clearance may cause a substantial removal of active colistin from the bloodstream, eventually decreasing its antibacterial efficacy. Currently recommended doses of CMS may therefore be inadequate for these patients. We report on the potential value of a modified regimen that adopts a loading dose of CMS (bolus of 9 MU vs. conventional 3 MU every 8 h), followed by maintenance (3 MU every 8 h). Preliminary pharmacokinetic evidence for the feasibility and efficacy of this regimen is described for 2 patients. PMID- 29334367 TI - Unmanipulated haploidentical transplantation conditioning with busulfan, cyclophosphamide and anti-thymoglobulin for adult severe aplastic anaemia. AB - We conducted a retrospective analysis to evaluate outcomes of haploidentical transplantation in adult severe aplastic anaemia (SAA) patients. Fifty-one adults received haploidentical transplantation between May 2011 and December 2016. Patients were administered busulfan (Bu), cyclophosphamide (Cy) and anti thymoglobulin (ATG) as conditioning regimens, followed by bone marrow and peripheral blood transplantation. The patients' median age was 25 years. Forty nine patients survived for more than 28 days and all achieved donor myeloid engraftment. The median time for myeloid engraftment and platelet recovery was 13 days (range, 10-21) and 17.5 (range, 7-101) days. The cumulative incidence (CI) of grade II-IV and III-IV acute GvHD) was 20.00+/-0.33% and 6.00+/-0.12%, respectively. The incidence of chronic GvHD was 14.00+/-0.36% and 25.90+/-0.71%, and that of moderate-severe chronic GvHD was 2.51+/-0.06% and 6.92+/-0.25% at 1 and 3 years, respectively. The 3-year estimated overall survival and failure-free survival were both 83.5+/-5.4% with a median follow-up of 21.1 months. Multivariate analysis showed hematopoietic cell transplantation-specific comorbidity index (HCT-CI) score of ?3 was significantly associated with worse outcome. Haploidentical transplantation conditioning including Bu/Cy/ATG was a safe and effective strategy for adult SAA patients, and HCT-CI might be an outcome predictor in these patients. PMID- 29334368 TI - Visualizing detailed postdoctoral employment trends using a new career outcome taxonomy. PMID- 29334369 TI - Dual gene activation and knockout screen reveals directional dependencies in genetic networks. AB - Understanding the direction of information flow is essential for characterizing how genetic networks affect phenotypes. However, methods to find genetic interactions largely fail to reveal directional dependencies. We combine two orthogonal Cas9 proteins from Streptococcus pyogenes and Staphylococcus aureus to carry out a dual screen in which one gene is activated while a second gene is deleted in the same cell. We analyze the quantitative effects of activation and knockout to calculate genetic interaction and directionality scores for each gene pair. Based on the results from over 100,000 perturbed gene pairs, we reconstruct a directional dependency network for human K562 leukemia cells and demonstrate how our approach allows the determination of directionality in activating genetic interactions. Our interaction network connects previously uncharacterized genes to well-studied pathways and identifies targets relevant for therapeutic intervention. PMID- 29334370 TI - Scaffolds that mimic antigen-presenting cells enable ex vivo expansion of primary T cells. AB - Therapeutic ex vivo T-cell expansion is limited by low rates and T-cell products of limited functionality. Here we describe a system that mimics natural antigen presenting cells (APCs) and consists of a fluid lipid bilayer supported by mesoporous silica micro-rods. The lipid bilayer presents membrane-bound cues for T-cell receptor stimulation and costimulation, while the micro-rods enable sustained release of soluble paracrine cues. Using anti-CD3, anti-CD28, and interleukin-2, we show that the APC-mimetic scaffolds (APC-ms) promote two- to tenfold greater polyclonal expansion of primary mouse and human T cells compared with commercial expansion beads (Dynabeads). The efficiency of expansion depends on the density of stimulatory cues and the amount of material in the starting culture. Following a single stimulation, APC-ms enables antigen-specific expansion of rare cytotoxic T-cell subpopulations at a greater magnitude than autologous monocyte-derived dendritic cells after 2 weeks. APC-ms support over fivefold greater expansion of restimulated CD19 CAR-T cells than Dynabeads, with similar efficacy in a xenograft lymphoma model. PMID- 29334371 TI - Cooperative targeting of melanoma heterogeneity with an AXL antibody-drug conjugate and BRAF/MEK inhibitors. AB - Intratumor heterogeneity is a key factor contributing to therapeutic failure and, hence, cancer lethality. Heterogeneous tumors show partial therapy responses, allowing for the emergence of drug-resistant clones that often express high levels of the receptor tyrosine kinase AXL. In melanoma, AXL-high cells are resistant to MAPK pathway inhibitors, whereas AXL-low cells are sensitive to these inhibitors, rationalizing a differential therapeutic approach. We developed an antibody-drug conjugate, AXL-107-MMAE, comprising a human AXL antibody linked to the microtubule-disrupting agent monomethyl auristatin E. We found that AXL 107-MMAE, as a single agent, displayed potent in vivo anti-tumor activity in patient-derived xenografts, including melanoma, lung, pancreas and cervical cancer. By eliminating distinct populations in heterogeneous melanoma cell pools, AXL-107-MMAE and MAPK pathway inhibitors cooperatively inhibited tumor growth. Furthermore, by inducing AXL transcription, BRAF/MEK inhibitors potentiated the efficacy of AXL-107-MMAE. These findings provide proof of concept for the premise that rationalized combinatorial targeting of distinct populations in heterogeneous tumors may improve therapeutic effect, and merit clinical validation of AXL-107-MMAE in both treatment-naive and drug-resistant cancers in mono- or combination therapy. PMID- 29334372 TI - Pharmacological blockade of ASCT2-dependent glutamine transport leads to antitumor efficacy in preclinical models. AB - The unique metabolic demands of cancer cells underscore potentially fruitful opportunities for drug discovery in the era of precision medicine. However, therapeutic targeting of cancer metabolism has led to surprisingly few new drugs to date. The neutral amino acid glutamine serves as a key intermediate in numerous metabolic processes leveraged by cancer cells, including biosynthesis, cell signaling, and oxidative protection. Herein we report the preclinical development of V-9302, a competitive small molecule antagonist of transmembrane glutamine flux that selectively and potently targets the amino acid transporter ASCT2. Pharmacological blockade of ASCT2 with V-9302 resulted in attenuated cancer cell growth and proliferation, increased cell death, and increased oxidative stress, which collectively contributed to antitumor responses in vitro and in vivo. This is the first study, to our knowledge, to demonstrate the utility of a pharmacological inhibitor of glutamine transport in oncology, representing a new class of targeted therapy and laying a framework for paradigm shifting therapies targeting cancer cell metabolism. PMID- 29334374 TI - Transitory presence of myeloid-derived suppressor cells in neonates is critical for control of inflammation. AB - Myeloid-derived suppressor cells (MDSCs) are pathologically activated and relatively immature myeloid cells that have been implicated in the immunological regulation of many pathologic conditions. Phenotypically and morphologically, MDSCs are similar to neutrophils (PMN-MDSCs) and monocytes (M-MDSCs). However, they have potent suppressive activity and distinct gene expression profiles and biochemical characteristics. No or very few MDSCs are observed in steady-state physiological conditions. Therefore, until recently, accumulation of MDSCs was considered a consequence of pathological processes or pregnancy. Here, we report that MDSCs with a potent ability to suppress T cells are present during the first weeks of life in mice and humans. MDSC suppressive activity was triggered by lactoferrin and mediated by nitric oxide, PGE2, and S100A9 and S100A8 proteins. MDSCs from newborns had a transcriptome similar to that of tumor MDSCs, but with strong upregulation of an antimicrobial gene network, and had potent antibacterial activity. MDSCs played a critical role in control of experimental necrotizing enterocolitis (NEC) in newborn mice. MDSCs in infants with very low weight, who are prone to NEC, had lower MDSC levels and suppressive activity than did infants with normal weight. Thus, the transitory presence of MDSCs may be critical for regulation of inflammation in newborns. PMID- 29334373 TI - Prevention of tuberculosis in rhesus macaques by a cytomegalovirus-based vaccine. AB - Despite widespread use of the bacille Calmette-Guerin (BCG) vaccine, tuberculosis (TB) remains a leading cause of global mortality from a single infectious agent (Mycobacterium tuberculosis or Mtb). Here, over two independent Mtb challenge studies, we demonstrate that subcutaneous vaccination of rhesus macaques (RMs) with rhesus cytomegalovirus vectors encoding Mtb antigen inserts (hereafter referred to as RhCMV/TB)-which elicit and maintain highly effector differentiated, circulating and tissue-resident Mtb-specific CD4+ and CD8+ memory T cell responses-can reduce the overall (pulmonary and extrapulmonary) extent of Mtb infection and disease by 68%, as compared to that in unvaccinated controls, after intrabronchial challenge with the Erdman strain of Mtb at ~1 year after the first vaccination. Fourteen of 34 RhCMV/TB-vaccinated RMs (41%) across both studies showed no TB disease by computed tomography scans or at necropsy after challenge (as compared to 0 of 17 unvaccinated controls), and ten of these RMs were Mtb-culture-negative for all tissues, an exceptional long-term vaccine effect in the RM challenge model with the Erdman strain of Mtb. These results suggest that complete vaccine-mediated immune control of highly pathogenic Mtb is possible if immune effector responses can intercept Mtb infection at its earliest stages. PMID- 29334375 TI - A small-molecule inhibitor of the ubiquitin activating enzyme for cancer treatment. AB - The ubiquitin-proteasome system (UPS) comprises a network of enzymes that is responsible for maintaining cellular protein homeostasis. The therapeutic potential of this pathway has been validated by the clinical successes of a number of UPS modulators, including proteasome inhibitors and immunomodulatory imide drugs (IMiDs). Here we identified TAK-243 (formerly known as MLN7243) as a potent, mechanism-based small-molecule inhibitor of the ubiquitin activating enzyme (UAE), the primary mammalian E1 enzyme that regulates the ubiquitin conjugation cascade. TAK-243 treatment caused depletion of cellular ubiquitin conjugates, resulting in disruption of signaling events, induction of proteotoxic stress, and impairment of cell cycle progression and DNA damage repair pathways. TAK-243 treatment caused death of cancer cells and, in primary human xenograft studies, demonstrated antitumor activity at tolerated doses. Due to its specificity and potency, TAK-243 allows for interrogation of ubiquitin biology and for assessment of UAE inhibition as a new approach for cancer treatment. PMID- 29334377 TI - Detecting hierarchical genome folding with network modularity. AB - Mammalian genomes are folded in a hierarchy of compartments, topologically associating domains (TADs), subTADs and looping interactions. Here, we describe 3DNetMod, a graph theory-based method for sensitive and accurate detection of chromatin domains across length scales in Hi-C data. We identify nested, partially overlapping TADs and subTADs genome wide by optimizing network modularity and varying a single resolution parameter. 3DNetMod can be applied broadly to understand genome reconfiguration in development and disease. PMID- 29334378 TI - Supermultiplexed optical imaging and barcoding with engineered polyynes. AB - Optical multiplexing has a large impact in photonics, the life sciences and biomedicine. However, current technology is limited by a 'multiplexing ceiling' from existing optical materials. Here we engineered a class of polyyne-based materials for optical supermultiplexing. We achieved 20 distinct Raman frequencies, as 'Carbon rainbow', through rational engineering of conjugation length, bond-selective isotope doping and end-capping substitution of polyynes. With further probe functionalization, we demonstrated ten-color organelle imaging in individual living cells with high specificity, sensitivity and photostability. Moreover, we realized optical data storage and identification by combinatorial barcoding, yielding to our knowledge the largest number of distinct spectral barcodes to date. Therefore, these polyynes hold great promise in live-cell imaging and sorting as well as in high-throughput diagnostics and screening. PMID- 29334376 TI - Positively selected enhancer elements endow osteosarcoma cells with metastatic competence. AB - Metastasis results from a complex set of traits acquired by tumor cells, distinct from those necessary for tumorigenesis. Here, we investigate the contribution of enhancer elements to the metastatic phenotype of osteosarcoma. Through epigenomic profiling, we identify substantial differences in enhancer activity between primary and metastatic human tumors and between near isogenic pairs of highly lung metastatic and nonmetastatic osteosarcoma cell lines. We term these regions metastatic variant enhancer loci (Met-VELs). Met-VELs drive coordinated waves of gene expression during metastatic colonization of the lung. Met-VELs cluster nonrandomly in the genome, indicating that activity of these enhancers and expression of their associated gene targets are positively selected. As evidence of this causal association, osteosarcoma lung metastasis is inhibited by global interruptions of Met-VEL-associated gene expression via pharmacologic BET inhibition, by knockdown of AP-1 transcription factors that occupy Met-VELs, and by knockdown or functional inhibition of individual genes activated by Met-VELs, such as that encoding coagulation factor III/tissue factor (F3). We further show that genetic deletion of a single Met-VEL at the F3 locus blocks metastatic cell outgrowth in the lung. These findings indicate that Met-VELs and the genes they regulate play a functional role in metastasis and may be suitable targets for antimetastatic therapies. PMID- 29334379 TI - Highly parallel direct RNA sequencing on an array of nanopores. AB - Sequencing the RNA in a biological sample can unlock a wealth of information, including the identity of bacteria and viruses, the nuances of alternative splicing or the transcriptional state of organisms. However, current methods have limitations due to short read lengths and reverse transcription or amplification biases. Here we demonstrate nanopore direct RNA-seq, a highly parallel, real time, single-molecule method that circumvents reverse transcription or amplification steps. This method yields full-length, strand-specific RNA sequences and enables the direct detection of nucleotide analogs in RNA. PMID- 29334380 TI - Light-activated chemical probing of nucleobase solvent accessibility inside cells. AB - The discovery of functional RNAs that are critical for normal and disease physiology continues to expand at a breakneck pace. Many RNA functions are controlled by the formation of specific structures, and an understanding of each structural component is necessary to elucidate its function. Measuring solvent accessibility intracellularly with experimental ease is an unmet need in the field. Here, we present a novel method for probing nucleobase solvent accessibility, Light Activated Structural Examination of RNA (LASER). LASER depends on light activation of a small molecule, nicotinoyl azide (NAz), to measure solvent accessibility of purine nucleobases. In vitro, this technique accurately monitors solvent accessibility and identifies rapid structural changes resulting from ligand binding in a metabolite-responsive RNA. LASER probing can further identify cellular RNA-protein interactions and unique intracellular RNA structures. Our photoactivation technique provides an adaptable framework to structurally characterize solvent accessibility of RNA in many environments. PMID- 29334382 TI - A de novo enzyme catalyzes a life-sustaining reaction in Escherichia coli. AB - Producing novel enzymes that are catalytically active in vitro and biologically functional in vivo is a key goal of synthetic biology. Here we describe Syn-F4, the first de novo protein that meets both criteria. Purified Syn-F4 hydrolyzes the siderophore ferric enterobactin, and expression of Syn-F4 allows an inviable strain of Escherichia coli to grow in iron-limited medium. These findings demonstrate that entirely new sequences can provide life-sustaining enzymatic functions in living organisms. PMID- 29334383 TI - A simple method for determining the ligand affinity toward a zinc-enzyme model by using a TAMRA/TAMRA interaction. AB - Thiolate coordination to zinc(ii) ions occurs widely in such functional biomolecules as zinc enzymes or zinc finger proteins. Here, we introduce a simple method for determining the affinity of ligands toward the zinc-enzyme active center model tetramethylrhodamine (TAMRA)-labeled 1,4,7,10-tetraazacyclododecane (cyclen)-zinc(ii) complex (TAMRA-ZnL). The 1 : 1 complexation of TAMRA-labeled cysteine (TAMRA-Cys) with TAMRA-ZnL (each at 2.5 MUM), in which the TAMRA moieties approach one another closely, induces remarkable changes in the visible absorption and fluorescence spectra at pH 7.4 and 25 degrees C. The 1 : 1 complex formation constant (K = [thiolate-bound zinc(ii) complex]/[uncomplexed TAMRA-ZnL][uncomplexed TAMRA-Cys], M-1) was determined to be 106.7 M-1 from a Job's plot of the absorbances at 552 nm. By a ligand-competition method with the 1 : 1 complexation equilibrium, analogous K values for thiol-containing ligands, such as N-acetyl-l-cysteine, l-glutathione, and N-acetyl-l-cysteinamide, were evaluated to have similar values of about 104 M-1. As a result of the ligand affinities to TAMRA-ZnL, nonlabeled zinc(ii)-cyclen induced remarkable stabilization of the reduced form of l-glutathione and a cysteine-containing enolase peptide to aerial oxidation in aqueous solution at pH 7.4 and 25 degrees C. PMID- 29334381 TI - The molecular basis of subtype selectivity of human kinin G-protein-coupled receptors. AB - G-protein-coupled receptors (GPCRs) are the most important signal transducers in higher eukaryotes. Despite considerable progress, the molecular basis of subtype specific ligand selectivity, especially for peptide receptors, remains unknown. Here, by integrating DNP-enhanced solid-state NMR spectroscopy with advanced molecular modeling and docking, the mechanism of the subtype selectivity of human bradykinin receptors for their peptide agonists has been resolved. The conserved middle segments of the bound peptides show distinct conformations that result in different presentations of their N and C termini toward their receptors. Analysis of the peptide-receptor interfaces reveals that the charged N-terminal residues of the peptides are mainly selected through electrostatic interactions, whereas the C-terminal segments are recognized via both conformations and interactions. The detailed molecular picture obtained by this approach opens a new gateway for exploring the complex conformational and chemical space of peptides and peptide analogs for designing GPCR subtype-selective biochemical tools and drugs. PMID- 29334384 TI - Micrometer-sized dihydrogenphosphate-intercalated layered double hydroxides: synthesis, selective infrared absorption properties, and applications as agricultural films. AB - High-performance heat-retention agents for multifunctional green agricultural films are today largely suitable to increase the production yield as well as to save energy. Here, an adapted ammonia releasing hydrothermal method was used to produce a series of micrometer-sized carbonate-layered double hydroxide (CO3-LDH) precursors of sizes ranging from 1.32 MUm to 8.64 MUm by simply adjusting the feeding Mg2+ concentration from 0.80 mol L-1 to 0.20 mol L-1. From these pristine LDH materials, MUm-sized dihydrogenphosphate-intercalated LDHs (H2PO4-LDHs) were prepared by an anion-exchange method. The structure, the platelet size, and the associated selective IR absorption properties of the H2PO4-LDH and the derivative H2PO4-LDH/EVA composite as well as the related visible transmittance and the photostability of the H2PO4-LDH/EVA film were investigated. The results show that the selective IR absorption in the wavelength range of 7-14 MUm enabling the heat retention of the H2PO4-LDHs and H2PO4-LDH/EVA composites depends on the corresponding number-averaged particle size of H2PO4-LDH in the range of 2.01 MUm to 8.80 MUm. Compared with EVA, the H2PO4-LDH/EVA composites demonstrate a significant improvement of selective IR absorption, while maintaining acceptable visible transmittance, and similar photostability. An optimized particle size of H2PO4-LDH of ca. 5.85 MUm leads to 60% selective IR absorption and 64% selective IR absorption when dispersed in EVA, while the polymer free of filler exhibits less than 50% absorption in the 7-14 MUm IR domain. PMID- 29334385 TI - Mechanical stability of a nanotube from monolayer black phosphorus with the [110] direction as the tube's circumference or generatrix. AB - The mechanical properties of black phosphorus (BP) are anisotropic. Correspondingly, the properties of the nanotubes formed by bending the same BP ribbon along different directions are different as well. When bending the ribbon along the [110] direction (i.e., stair direction), or along its perpendicular direction (i.e., ps-direction), s- or ps-BPNT can be obtained. The two types of BPNTs are investigated via molecular dynamics (MD) simulations on their thermal and mechanical properties. The results indicate that, for the thermal stability of the s-BPNTs with similar diameters, s-BPNT is weaker than a-BPNTs (armchair type) but stronger than ps-BPNT, and z-BPNT (zigzag type) is the weakest one. In general, a-BPNT has larger compressive or tensile strength, while s-BPNT and ps BPNT can bear larger deformation. Under uniaxial compression, s-BPNT has two different breaking patterns at different temperatures. The peculiar properties illustrate the wider application of BPNTs in nanodevices under large deformation. PMID- 29334386 TI - Organic-inorganic hybrids having a talc-like structure as suitable hosts to guest a wide range of species. AB - The sol-gel process involving hydrolysis and condensation reactions is an attractive way to form siloxane based hybrid materials since it is a one-step method performed under mild conditions. Organic-inorganic hybrids having a talc like structure (TLH) can be obtained using this procedure starting from organotrialkoxysilanes having the formula R-Si(OR')3 (where R stands for an organic moiety and R' for a methyl or ethyl group) with different functionalities, an aqueous or ethanolic solution of a magnesium salt, and in some cases, an aqueous solution of sodium hydroxide. In this way, the organic chains are covalently bonded to the silicon of the tetrahedral sheets, pointing toward the interlayer space. The interesting feature in this case is that as many organotrialkoxysilanes are on the market, a wide range of organic moieties can be introduced in the interlayer space leading to applications in various fields. This review highlights the latest trends and the multifaceted applications of these functional layered compounds. PMID- 29334387 TI - A utility for organoleads: selective alkyl and aryl group transfer to tin. AB - Me4Pb and Ph4Pb readily transfer methyl or phenyl groups to an equivalent molar ratio of tin(iv) chlorides in the order SnCl4 > MeSnCl3 > Me2SnCl2 > Me3SnCl, often in a selective manner. Me3PbCl and Ph3PbCl specifically transfer a single methyl/phenyl group under the same reaction conditions to produce recovered yields in >75%. Specific transfer of 2 methyl groups from PbMe4 can be achieved at elevated temperatures and/or a 2 : 1 molar ratio Pb : Sn. PMID- 29334388 TI - Catalytic (de)hydrogenation promoted by non-precious metals - Co, Fe and Mn: recent advances in an emerging field. AB - Catalytic hydrogenation and dehydrogenation reactions form the core of the modern chemical industry. This vast class of reactions is found in any part of chemical synthesis starting from the milligram-scale exploratory organic chemistry to the multi-ton base chemicals production. Noble metal catalysis has long been the key driving force in enabling these transformations with carbonyl substrates and their nitrogen-containing counterparts. This review is aimed at introducing the reader to the remarkable progress made in the last three years in the development of base metal catalysts for hydrogenations and dehydrogenative transformations. PMID- 29334389 TI - Effect of coordination geometry on the magnetic properties of a series of Ln2 and Ln4 hydroxo clusters. AB - A series of three isostructural tetranuclear complexes with the general molecular formula [Ln4(MU3-OH)4(L)4(MU2-piv)4(MeOH)4] (Ln = Gd 1, Dy 2 and Ho 3; LH = [1,3 bis(o-methoxyphenyl)-propane-1,3-dione]) were isolated and unambiguously characterized by single crystal XRD. Under similar reaction conditions, simply changing the co-ligand from pivalate to 2,6-bis(hydroxymethyl)-p-cresol (LH'3) led to the isolation of dinuclear Ln(iii) complexes with the general molecular formula [Ln2(L)4(MU2-LH'2)2].4DMF (Ln = Gd 4, Dy 5 and Ho 6). Direct current magnetic susceptibility data studies on the polycrystalline sample of 1-6 and the results reveal the existence of weak antiferromagnetic exchange interactions between the lanthanide ions in 1 which is evident from the spin Hamiltonian (SH) parameters (J1 = -0.055 cm-1 and g = 2.01) extracted by fitting chiMT(T). On the other hand, though complex 4 exhibits weak antiferromagnetic coupling (J1 = 0.048 cm-1 and g = 1.99) between the Gd(iii) ions, the chiMT(T) data of complexes 5 and 6 unambiguously disclose the presence of ferromagnetic interactions between Dy(iii) and Tb(iii) ions at lower temperature. Magnetization relaxation dynamics studies performed on 2 show frequency dependent out-of-phase susceptibility signals in the presence of an optimum external magnetic field of 0.5 kOe. In contrast, complex 5 shows slow magnetization relaxation with an effective energy barrier (Ueff) of 38.17 cm-1 with a pre-exponential factor (tau0) of 1.85 * 10-6 s. The magnetocaloric effect (MCE) of complexes 1 and 4 was extracted from the detailed magnetization measurement and the change in the magnetic entropy ( DeltaSm) of 1 and 4 was found to be 25.57 J kg-1 K-1 and 12.93 J kg-1 K-1, respectively, at 3.0 K for DeltaH = 70 kOe. PMID- 29334390 TI - Smartphone integrated optoelectrowetting (SiOEW) for on-chip sample processing and microscopic detection of water quality. AB - With the increasing capabilities and ubiquity of smartphones and their associated digital cameras, this study presents a smartphone integrated optoelectrowetting (SiOEW) device as a simple, portable tool capable of on-chip water sample preparation and microscopic detection of the target cells in water samples, which significantly reduce the detection time and the labor cost required for water quality monitoring. A commercially available smartphone is used as a low intensity portable light source to perform optoelectrowetting (OEW)-based microfluidic operations such as droplet transportation, merging, mixing, and immobilization on a hydrophobic detection zone. Furthermore, a built-in smartphone camera allows on-chip microscopic detection of water quality with a 45* magnification. We have experimentally demonstrated that the SiOEW platform is able not only to automate the sample processing of marine water including the target algae cells (Amphiprora sp.) and staining reagents fluorescein diacetate (FDA) and 5-chloromethylfluorescein diacetate (CMFDA), but also detect the fluorescence signals emitted from the target cells in water samples and count their populations. Using the smartphone, the collected information (e.g. the location of the water sample collected and the time it was detected, the number of the target cells, etc.) can be rapidly and wirelessly shared with a central host such as an environmental regulation agency for real-time monitoring and further management of water quality. PMID- 29334392 TI - Control of collagen gel mechanical properties through manipulation of gelation conditions near the sol-gel transition. AB - The ability to control the mechanical properties of cell culture environments is known to influence cell morphology, motility, invasion and differentiation. The present work shows that it is possible to control the mechanical properties of collagen gels by manipulating gelation conditions near the sol gel transition. This manipulation is accomplished by performing gelation in two stages at different temperatures. The mechanical properties of the gel are found to be strongly dependent on the duration and temperature of the first stage. In the second stage the system is quickly depleted of free collagen which self assembles into a highly branched network characteristic of gelation at the higher temperature (37 degrees C). An important aspect of the present work is the use of advanced rheometric techniques to assess the transition point between viscoelastic liquid and viscoelastic solid behaviour which occurs upon establishment of a sample spanning network at the gel point. The gel time at the stage I temperature is found to indicate the minimum time that the gelling collagen sample must spend under stage I conditions before the two stage gelation procedure generates an enhancement of mechanical properties. Further, the Fractional Maxwell Model is found to provide an excellent description of the time dependent mechanical properties of the mature collagen gels. PMID- 29334393 TI - Facile fabrication and characterization of two-dimensional bismuth(iii) sulfide nanosheets for high-performance photodetector applications under ambient conditions. AB - Two-dimensional (2D) bismuth(iii) sulfide (Bi2S3) nanosheets as non-toxic graphene-like nanomaterials were successfully fabricated by a facile liquid phase exfoliation (LPE) method. A robust photodetector employing a Bi2S3 nanosheet film has been fabricated for the first time via a facile fabrication process on an ITO coated glass. UV-Vis and Raman spectroscopy techniques were carried out and they confirmed the inherent optical and physical properties of Bi2S3 nanosheets. Photoelectrochemical (PEC) measurements demonstrate that a significantly higher photocurrent density (42 MUA cm-2) and enhanced photoresponsivity (210 MUA W-1), at a lower bias potential in alkaline solution, of the Bi2S3 nanosheet-based photodetector are achieved, compared with those of other 2D nanomaterial-based photodetectors under light irradiation. Furthermore, the as-prepared Bi2S3 nanosheet-based photodetector not only exhibits an appropriate capacity of self driven broadband and high-performance photoresponse but also displays strong long term stability of the ON/OFF switching behaviour without any external protection in alkaline solutions. Because of facile synthesis via a LPE method, a higher photocurrent density and photoresponsivity, self-driven performance and long-term stability of the Bi2S3 nanosheet-based photodetector at a lower bias potential in alkaline solutions, the present work can provide fundamental acknowledgement of the high performance of this new kind of PEC-type 2D nanosheet-based photodetector. PMID- 29334394 TI - Substitution of the laser borane anti-B18H22 with pyridine: a structural and photophysical study of some unusually structured macropolyhedral boron hydrides. AB - Reaction of anti-B18H221 with pyridine in neutral solvents gives sparingly soluble B16H18-3',8'-Py23a as the major product (ca. 53%) and B18H20-6',9'-Py22 (ca. 15%) as the minor product, with small quantities of B18H20-8'-Py 4 (ca. 1%) also being formed. The three new compounds 2, 3a and 4 are characterized by single-crystal X-ray diffraction analyses and by multinuclear multiple-resonance NMR spectroscopy. Compound 2 is of ten-vertex nido:ten-vertex arachno two-atoms in-common architecture, long postulated for a species with borons-only cluster constitution, but previously elusive. Compound 3a is of unprecedented ten-vertex nido:eight-vertex arachno two-atoms-in-common architecture. The single-crystal X ray diffraction analysis for the picoline derivative B16H18(NC5H4Me)23b, similarly obtained, is also presented. B18H20Py 4 is also previously unreported but is of known ten-vertex nido:ten-vertex nido two-atoms-in-common architecture of anti configuration, but now with the pyridine ligand positioned differently to other reported examples of B18H20L compounds. Factors behind the remarkably low solubility of 3a and 3b are elucidated in terms of electrostatic potential (ESP) calculations, polarity, and van der Waals complementarities. In view of contemporary developing high interest in the fluorescent properties of macropolyhedral boron-containing species, a detailed assessment of the photophysical characteristics of 3a and 4 is also presented. In contrast to the thermochromic fluorescence of 2 (from 620 nm brick-red at room temperature to 585 nm yellow at 8 K, quantum yield 0.15), compound 3a is only weakly phosphorescent in the yellow region (590 nm, quantum yield 0.01), whereas compound 4 exhibits no luminescence. The far more photoactive nature of compound 2 is associated with S1 excited-state minima structures that differ from each other only by the relative rotational positions of the pyridine substituents on its disubstituted ten-vertex {arachno-B10Py2}-subcluster. The wavelength and relative intensity of fluorescence from these structures depends on the rotational positions of the pyridine ligands, which in turn are influenced by temperature and/or rotational inhibition in the solid-state. PMID- 29334395 TI - Probing the geometry of copper and silver adatoms on magnetite: quantitative experiment versus theory. AB - Accurately modelling the structure of a catalyst is a fundamental prerequisite for correctly predicting reaction pathways, but a lack of clear experimental benchmarks makes it difficult to determine the optimal theoretical approach. Here, we utilize the normal incidence X-ray standing wave (NIXSW) technique to precisely determine the three dimensional geometry of Ag1 and Cu1 adatoms on Fe3O4(001). Both adatoms occupy bulk-continuation cation sites, but with a markedly different height above the surface (0.43 +/- 0.03 A (Cu1) and 0.96 +/- 0.03 A (Ag1)). HSE-based calculations accurately predict the experimental geometry, but the more common PBE + U and PBEsol + U approaches perform poorly. PMID- 29334396 TI - Towards the continuous production of Pt-based heterogeneous catalysts using microfluidic systems. AB - The continuous production of Pt-based heterogeneous catalysts based on ultra small (<2 nm) noble metal nanoparticles deposited on mesoporous ordered silica and their catalytic activity in VOC abatement are here reported. Microfluidic reactors can be used not only to enable the fast and controlled production of ultra-small Pt nanoparticles (NPs), but also alloyed NPs including PtPd, PtRu and PtRh can be formed in short residence times (between 60 s and 5 min). A novel continuous and homogeneous loading of these catalytic NPs on SBA-15 used as a mesoporous support is also here reported. This procedure eases the NP loading and minimizes washing post-treatments. A 12-fold decrease in the synthesis time was obtained when using this microfluidic reactor compared to the traditional batch production of Pt NPs. Microflow and batch type reactors yielded a Pt precursor conversion to generate Pt NPs with a 90% and 85% yield, respectively. Under the same conditions, the productivity of the microfluidic system (27 mg Pt NPs per h) was twice the one achieved in the conventional batch type reactor. The catalytic performance of the supported catalysts separately prepared by microfluidics and by conventional impregnation under the same conditions and with the same noble metal loading was also compared in the n-hexane abatement as a model of VOCs. Both catalysts were active in the VOC oxidation reaction but a 95% reduction in the catalyst synthesis time was obtained when using the catalysts produced in the microfluidic platform. For this reaction a long-term activity test was successfully carried out at 175 degrees C during 30 h on stream using the heterogeneous catalyst prepared by using the flow reactor. PMID- 29334398 TI - Formation of shelf stable Pickering high internal phase emulsions (HIPE) through the inclusion of whey protein microgels. AB - High internal phase emulsions (HIPE) prepared using whey protein microgels (WPMs) as a surfactant were demonstrated to have substantially higher stability than HIPEs prepared using similar loadings of non-gelled whey protein isolate (WPI) or Tween 20. Microgel colloids were prepared from WPI solutions by heat treatment at 85 degrees C in a narrow pH range (5.8-6.0) to particle sizes of approximately 90, 160 and 350 nm in diameter. zeta-potentials of the WPM increased in negativity with decreasing particle size from -7.4 +/- 2.5 down to -21.1 +/- 0.9 at 90 nm. All WPMs conferred high stability to corn oil based HIPE when used as an emulsifier. Light microscopy and cryo-scanning electron microscopy showed that both increasing WPM concentration and decreasing WPM particle size produced increasingly smaller and more hexagonally shaped corn oil emulsion droplets; WPI and Tween 20 based HIPE droplets were generally smaller and spherical in shape. The HIPE (75% w/w corn oil) produced with 1% (w/w) WPM as an emulsifier showed stability through 6 months storage at 4 degrees C at all WPM sizes tested, while the HIPE prepared with 1% (w/w) WPI or Tween 20 exhibited significant creaming. WPM and WPI based HIPE both showed thermal stability at 70 degrees C and 95 degrees C while the heating of Tween 20 based HIPE resulted in droplet coalescence and oil-phase separation. HIPE production with WPMs significantly improved the viscoelastic properties of the HIPE, imparting drastic increases in yield stress, critical stress, complex modulus and elastic modulus over HIPE prepared with WPI or Tween 20. The more rigid rheology of the WPM HIPE indicated by these data is likely the primary mechanism driving the improved stability of these emulsions. PMID- 29334397 TI - Recombinant phosphatidylserine-binding nanobodies for targeting of extracellular vesicles to tumor cells: a plug-and-play approach. AB - Extracellular vesicles (EVs) are increasingly being recognized as candidate drug delivery systems due to their ability to functionally transfer biological cargo between cells. However, manipulation of targeting properties of EVs through engineering of the producer cells can be challenging and time-consuming. As a novel approach to confer tumor targeting properties to isolated EVs, we generated recombinant fusion proteins of nanobodies against the epidermal growth factor receptor (EGFR) fused to phosphatidylserine (PS)-binding domains of lactadherin (C1C2). C1C2-nanobody fusion proteins were expressed in HEK293 cells and isolated from culture medium with near-complete purity as determined by SDS-PAGE. Fusion proteins specifically bound PS and showed no affinity for other common EV membrane lipids. Furthermore, C1C2 fused to anti-EGFR nanobodies (EGa1-C1C2) bound EGFR with high affinity and competed with binding of its natural ligand EGF, as opposed to C1C2 fused to non-targeting control nanobodies (R2-C1C2). Both proteins readily self-associated onto membranes of EVs derived from erythrocytes and Neuro2A cells without affecting EV size and integrity. EV-bound R2-C1C2 did not influence EV-cell interactions, whereas EV-bound EGa1-C1C2 dose-dependently enhanced specific binding and uptake of EVs by EGFR-overexpressing tumor cells. In conclusion, we developed a novel strategy to efficiently and universally confer tumor targeting properties to PS-exposing EVs after their isolation, without affecting EV characteristics, circumventing the need to modify EV secreting cells. This strategy may also be employed to decorate EVs with other moieties, including imaging probes or therapeutic proteins. PMID- 29334399 TI - Chondrocyte burst promotes space for mineral expansion. AB - Analysis of tissue development from multidisciplinary approaches can result in more integrative biological findings, and can eventually allow the development of more effective bioengineering methods. In this study, we analyzed the initial steps of mineral formation during secondary ossification of mouse femur based on biological and bioengineering approaches. We first found that some chondrocytes burst near the mineralized area. External factors that could trigger chondrocyte burst were then investigated. Chondrocyte burst was shown to be modulated by mechanical and osmotic pressure. A hypotonic solution, as well as mechanical stress, significantly induced chondrocyte burst. We further hypothesized that chondrocyte burst could be associated with space-making for mineral expansion. In fact, ex vivo culture of femur epiphysis in hypotonic conditions, or under mechanical pressure, enhanced mineral formation, compared to normal culture conditions. Additionally, the effect of mechanical pressure on bone formation in vivo was investigated by immobilization of mouse lower limbs to decrease the body pressure onto the joints. The results showed that limb immobilization suppressed bone formation. Together, these results suggest chondrocyte burst as a novel fate of chondrocytes, and that manipulation of chondrocyte burst with external mechano chemical stimuli could be an additional approach for cartilage and bone tissue engineering. PMID- 29334400 TI - Oolong tea and LR-White resin: a new method of plant sample preparation for transmission electron microscopy. AB - Simplifying sample processing, shortening the sample preparation time, and adjusting procedures to suitable for new health and safety regulations, these issues are the current challenges which electron microscopic examinations need to face. In order to resolve these problems, new plant tissue sample processing protocols for transmission electron microscopy should be developed. In the present study, we chose the LR-White resin-assisted processing protocol for the ultrastructural observation of different types of plant tissues. Moreover, we explored Oolong tea extract (OTE) as a substitute for UA in staining ultrathin sections of plant samples. The results revealed that there was no significant difference between the OTE double staining method and the traditional double staining method. Furthermore, in some organelles, such as mitochondria in root cells of tomatoes and chloroplast in leaf cells of watermelons, the OTE double staining method achieved little better results than the traditional double staining method. Therefore, OTE demonstrated good potentials in replacing UA as a counterstain on ultrathin sections. In addition, sample preparation time was significantly shortened and simplified using LR-White resin. This novel protocol reduced the time for preparing plant samples, and hazardous reagents in traditional method (acetone and UA) were also replaced by less toxic ones (ethanol and OTE). PMID- 29334401 TI - Unearthing belowground bud banks in fire-prone ecosystems. AB - Despite long-time awareness of the importance of the location of buds in plant biology, research on belowground bud banks has been scant. Terms such as lignotuber, xylopodium and sobole, all referring to belowground bud-bearing structures, are used inconsistently in the literature. Because soil efficiently insulates meristems from the heat of fire, concealing buds below ground provides fitness benefits in fire-prone ecosystems. Thus, in these ecosystems, there is a remarkable diversity of bud-bearing structures. There are at least six locations where belowground buds are stored: roots, root crown, rhizomes, woody burls, fleshy swellings and belowground caudexes. These support many morphologically distinct organs. Given their history and function, these organs may be divided into three groups: those that originated in the early history of plants and that currently are widespread (bud-bearing roots and root crowns); those that also originated early and have spread mainly among ferns and monocots (nonwoody rhizomes and a wide range of fleshy underground swellings); and those that originated later in history and are strictly tied to fire-prone ecosystems (woody rhizomes, lignotubers and xylopodia). Recognizing the diversity of belowground bud banks is the starting point for understanding the many evolutionary pathways available for responding to severe recurrent disturbances. PMID- 29334402 TI - Noninvasive reconstruction of placental methylome from maternal plasma DNA: Potential for prenatal testing and monitoring. AB - OBJECTIVE: During human pregnancy, the DNA methylation of placental tissue is highly relevant to the normal growth and development of the fetus; therefore, methylomic analysis of the placental tissue possesses high research and clinical value in prenatal testing and monitoring. Thus, our aim is to develop an approach for reconstruction of the placental methylome, which should be completely noninvasive and achieve high accuracy and resolution. RESULTS: We propose a novel size-based algorithm, FEtal MEthylome Reconstructor (FEMER), to noninvasively reconstruct the placental methylome by genomewide bisulfite sequencing and size based analysis of maternal plasma DNA. By applying FEMER on a real clinical dataset, we demonstrate that FEMER achieves both high accuracy and resolution, thus provides a high-quality view of the placental methylome from maternal plasma DNA. FEtal MEthylome Reconstructor could also predict the DNA methylation profile of CpG islands with high accuracy, thus shows potential in monitoring of key genes involved in placental/fetal development. Source code and testing datasets for FEMER are available at http://sunlab.cpy.cuhk.edu.hk/FEMER/. CONCLUSION: FEtal MEthylome Reconstructor could enhance the noninvasive fetal/placental methylomic analysis and facilitate its application in prenatal testing and monitoring. PMID- 29334403 TI - Soft tissue volume gain around dental implants using autogenous subepithelial connective tissue grafts harvested from the lateral palate or tuberosity area. A randomized controlled clinical study. AB - AIM: To compare the soft tissue volume gain (VG) around single tooth implants with subepithelial connective tissue graft (SCTG) from either the lateral palate (LP) or from the tuberosity area (TA). METHODS: Thirty-two patients with 36 implants with buccal volume deficiencies were randomly assigned to receive SCTG from LP (control group/CG) or TA (test group/TG). Clinical parameters were recorded. VG was evaluated by stereolithography (STL) image superimposition of two intraoral scans (baseline/BL and 3 months after surgery/FU-3). Descriptive analysis was performed for both groups, and for comparisons, Mann-Whitney U test was used. RESULTS: In terms of VG values, no statistically significant differences were observed except for values at 6 and 7 mm apically to the healing abutment which favoured the TG. Mean values were 0.69 +/- 0.23 mm for CG while TG obtained 0.79 +/- 0.10 mm (p = .64). Regarding Keratinized tissue (KT) width statistical significant differences were found favouring TG, which obtained a gain of 0.83 +/- 0.61 mm compared with 0.22 +/- 0.48 mm for CG (p = .009). Pink esthetic scores resulted in mean values of 10.07 +/- 2.19 for the CG, while TG obtained 9.15 +/- 2.34. CONCLUSIONS: Both procedures were effective in increasing soft tissue volume with no statistically significant differences. A longer follow up is needed to confirm or refute these results. PMID- 29334404 TI - Special Issue "Chiroptical Spectroscopy: Instrumentation, Experimental Aspects and Applications" in memory of Ettore Castiglioni. PMID- 29334405 TI - High-resolution dental magnetic resonance imaging for planning palatal graft surgery-a clinical pilot study. AB - AIM: To evaluate whether high-resolution, non-contrast-enhanced dental magnetic resonance imaging (MRI) can be used for accurate determination of palatal masticatory mucosa thickness (PMMT) and to locate the greater palatal artery (GPA). MATERIALS AND METHODS: In five volunteers (four males, one female; mean age 30.2 +/- 0.4 years), two independent raters measured PMMT by use of dental MRI in 180 positions. For comparison, clinical bone sounding was performed. The GPA was identified in time-of-flight (TOF) angiography and MSVAT-SPACE-prototype sequence. Intra- and inter-observer agreement for MRI measurements, agreement between MRI and bone sounding were analysed by intra-class correlation coefficient (ICC) and Cohen's kappa (kappa). RESULTS: Reliability of dental MRI measurements was high (intra-observer-ICC 0.962; inter-observer ICC 0.959). Agreement of MRI measurements with bone sounding was moderate (ICC 0.744), and the GPA could be identified in 60% of measurement points using the TOF angiography alone and in 85% with additional information of the MSVAT-SPACE. Good intra-observer agreement was observed for GPA identification (kappa: 0.778). CONCLUSION: Palatal masticatory mucosa thickness measured by high-resolution, non contrast enhanced dental MRI is comparable with that obtained by bone sounding. Dental MRI enables reliable, non-invasive and radiation-free planning of palatal tissue harvesting and can also be used for location of the GPA at 85% of measurement points, which might help reduce complications during surgery. PMID- 29334407 TI - Chiral separation of novel iminonaringenin derivatives. AB - A series of 4-iminonaringenin derivatives 2-6 have been prepared in good overall yields from a condensation reaction between naringenin and primary amines. The structures of all products were confirmed by ultraviolet, infrared, proton nuclear magnetic resonance, and carbon-13 nuclear magnetic resonance spectroscopic techniques. These derivatives were analyzed by high-performance liquid chromatography using polysaccharide-based chiral stationary phases, namely, Chiralpak IB and Chiralcel OD, using various mobile phases. 2-Propanol showed a high enantioselectivity for naringin and its derivatives using achiral column containing immobilized polysaccharides (Chiralpak IB). PMID- 29334406 TI - Dasatinib-induced pulmonary arterial hypertension. AB - Drug-induced (group 1) pulmonary hypertension (PH) is an important subgroup of PH involving dasatinib as a likely related agent, which is a second-generation tyrosine kinase inhibitor (TKI) used in the treatment of chronic myeloid leukaemia (CML). The mechanism of dasatinib-induced pulmonary arterial hypertension (PAH) is unclear. However, the occurrence of PAH with late onset in CML patients suggests a chronic pathological mechanism with an insidious onset rather than an acute inflammatory or cardiac aetiology. Dasatinib has a broader effect than other TKIs; the major known difference between dasatinib and other TKIs is the additional inhibition of Src family kinases. Therefore, Src inhibition was thought to play a role in the development of dasatinib-induced PAH. However, recently, it was also speculated that chronic dasatinib therapy may cause pulmonary endothelial damage, attenuate hypoxic pulmonary vasoconstriction responses and increase susceptibility to PAH independently of the Src family kinase-induced mechanism. Dasatinib-induced PAH usually seems to be reversible with the cessation of the drug, and sometimes with PAH-specific treatment strategies. Transthoracic echocardiography can be recommended as a routine screening prior to dasatinib initiation, and this non-invasive procedure can be utilized in patients having signs and symptoms attributable to PAH during dasatinib treatment. PMID- 29334408 TI - Effects of metalaxyl enantiomers stress on root activity and leaf antioxidant enzyme activities in tobacco seedlings. AB - The objective of this experiment was to study the effects of metalaxyl enantiomers on the activity of roots and antioxidative enzymes in tobacco seedlings. Water culture experiment was conducted to analyze the effects of different concentrations of metalaxyl enantiomers (30 and 10 mg L-1 ) on root activity and leaf superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) activities and malondialdehyde (MDA) content of tobacco seedlings. The results showed that metalaxyl significantly inhibited root activity and significantly improved leaf SOD, POD, and CAT activities and MDA content. A better physiological response in tobacco seedlings was observed at 30 mg L-1 than at 10 mg L-1 metalaxyl. The stereoselectivity for different enantiomers had no obvious effect on root activity and the leaf POD activity, but it affected significantly the SOD and CAT activities and MDA content. The SOD activity was promoted more by R-enantiomer than by S-enantiomer at 30 mg L-1 metalaxyl, and the same effect was observed on CAT activity from the beginning to the end of the stress period. The MDA content under the stress by R-enantiomer was higher than that under the stress by S-enantiomer at 10 mg L-1 metalaxyl. PMID- 29334409 TI - Climate-driven mitochondrial selection: A test in Australian songbirds. AB - Diversifying selection between populations that inhabit different environments can promote lineage divergence within species and ultimately drive speciation. The mitochondrial genome (mitogenome) encodes essential proteins of the oxidative phosphorylation (OXPHOS) system and can be a strong target for climate-driven selection (i.e., associated with inhabiting different climates). We investigated whether Pleistocene climate changes drove mitochondrial selection and evolution within Australian birds. First, using phylogeographic analyses of the mitochondrial ND2 gene for 17 songbird species, we identified mitochondrial clades (mitolineages). Second, using distance-based redundancy analyses, we tested whether climate predicts variation in intraspecific genetic divergence beyond that explained by geographic distances and geographic position. Third, we analysed 41 complete mitogenome sequences representing each mitolineage of 17 species using codon models in a phylogenetic framework and a biochemical approach to identify signals of selection on OXPHOS protein-coding genes and test for parallel selection in mitolineages of different species existing in similar climates. Of 17 species examined, 13 had multiple mitolineages (range: 2-6). Climate was a significant predictor of mitochondrial variation in eight species. At least two amino acid replacements in OXPHOS complex I could have evolved under positive selection in specific mitolineages of two species. Protein homology modelling showed one of these to be in the loop region of the ND6 protein channel and the other in the functionally critical helix HL region of ND5. These findings call for direct tests of the functional and evolutionary significance of mitochondrial protein candidates for climate-associated selection. PMID- 29334410 TI - Selective Binding and Precipitation of Cesium Ions from Aqueous Solutions: A Size Driven Supramolecular Reaction. AB - The nuclear disasters of Chernobyl and Fukushima presented an urgent need for finding solutions to treatment of radioactive wastes. Among the by-products of nuclear fission is radioactive 137 Cs, which evokes an environmental hazard due to its long half-life (>30 years) and high solubility in water. In this work, a water-soluble organic ligand, readily obtained from alloxan and 1,3,5 benzenetriol, has been found to selectively bind and precipitate Cs+ ions from aqueous solutions. The special rigid structure of the ligand, which consists of a "tripodal" carbonyl base above and below an aromatic plane, contributes to the size-driven selectivity towards the large Cs+ ions and the formation of a giant, insoluble supramolecular complex. In addition to the low costs of the ligand, high yields and effectiveness in precipitating Cs+ ions, the Cs-complex revealed a high endurance to continuous doses of gamma-radiation, increasing its potential to act as a precipitating agent for 137 Cs. PMID- 29334411 TI - Nickel-Catalyzed C-S Bond Formation via Decarbonylative Thioetherification of Esters, Amides and Intramolecular Recombination Fragment Coupling of Thioesters. AB - A nickel catalyzed cross-coupling protocol for the straightforward C-S bond formation has been developed. Various mercaptans and a wide range of ester and amide substrates bearing various substituents were tolerated in this process which afforded products in good to excellent yields. Furthermore, an intramolecular protocol for the synthesis of thioethers starting from thioesters has been developed. The utility of this protocol has been demonstrated in a new synthetic protocol of benzothiophene. PMID- 29334412 TI - Stallion semen quality depends on major histocompatibility complex matching to teaser mare. AB - The major histocompatibility complex (MHC) has repeatedly been found to influence mate choice of vertebrates, with MHC-dissimilar mates typically being preferred over MHC-similar mates. We used horses (Equus caballus) to test whether MHC matching also affects male investment into ejaculates after short exposure to a female. Semen characteristics varied much among stallions. Controlling for this variance with a full-factorial within-subject experimental design, we found that a short exposure to an MHC-dissimilar mare enhanced male plasma testosterone and led to ejaculates with elevated sperm numbers as compared to exposure to an MHC similar mare. Sperm velocity seemed not affected by the treatment. Overall genetic similarity between stallions and mares (determined from polymorphic microsatellites on 20 different chromosomes) played no significant role here. The MHC type of the teaser mare also affected characteristics of cold-stored sperm after 24 and 48 hr. As expected from ejaculate economics, sperm viability was elevated after exposure to an MHC-dissimilar mare. However, oxidative stress and the percentage of sperm with a high DNA fragmentation were mostly increased after exposure to an MHC-dissimilar mare, depending also on whether the teaser mare was in oestrous or not. We conclude that males can quickly adjust ejaculate quality relative to a female's MHC, and that this male reaction to the social environment can also affect important characteristics of cold-stored semen. PMID- 29334413 TI - Features of Auxiliaries That Enable Native Chemical Ligation beyond Glycine and Cleavage via Radical Fragmentation. AB - Native chemical ligation (NCL) is an invaluable tool in the total chemical synthesis of proteins. Ligation auxiliaries overcome the requirement for cysteine. However, the reported auxiliaries remained limited to glycine containing ligation sites and the acidic conditions applied for cleavage of the typically applied N-benzyl-type linkages promote side reactions. With the aim to improve upon both ligation and cleavage, we systematically investigated alternative ligation scaffolds that challenge the N-benzyl dogma. The study revealed that auxiliary-mediated peptide couplings are fastest when the ligation proceeds via 5-membered rather than 6-membered rings. Substituents in alpha position of the amine shall be avoided. We observed, perhaps surprisingly, that additional beta-substituents accelerated the ligation conferred by the beta mercaptoethyl scaffold. We also describe a potentially general means to remove ligation auxiliaries by treatment with an aqueous solution of triscarboxyethylphosphine (TCEP) and morpholine at pH 8.5. NMR analysis of a 13 C labeled auxiliary showed that cleavage most likely proceeds through a radical triggered oxidative fragmentation. High ligation rates provided by beta substituted 2-mercaptoethyl scaffolds, their facile introduction as well as the mildness of the cleavage reaction are attractive features for protein synthesis beyond cysteine and glycine ligation sites. PMID- 29334414 TI - Cryptic species as a window into the paradigm shift of the species concept. AB - The species concept is the cornerstone of biodiversity science, and any paradigm shift in the delimitation of species affects many research fields. Many biologists now are embracing a new "species" paradigm as separately evolving populations using different delimitation criteria. Individual criteria can emerge during different periods of speciation; some may never evolve. As such, a paradigm shift in the species concept relates to this inherent heterogeneity in the speciation process and species category-which is fundamentally overlooked in biodiversity research. Cryptic species fall within this paradigm shift: they are continuously being reported from diverse animal phyla but are poorly considered in current tests of ecological and evolutionary theory. The aim of this review is to integrate cryptic species in biodiversity science. In the first section, we address that the absence of morphological diversification is an evolutionary phenomenon, a "process" counterpart to the long-studied mechanisms of morphological diversification. In the next section regarding taxonomy, we show that molecular delimitation of cryptic species is heavily biased towards distance based methods. We also stress the importance of formally naming of cryptic species for better integration into research fields that use species as units of analysis. Finally, we show that incorporating cryptic species leads to novel insights regarding biodiversity patterns and processes, including large-scale biodiversity assessments, geographic variation in species distribution and species coexistence. It is time for incorporating multicriteria species approaches aiming to understand speciation across space and taxa, thus allowing integration into biodiversity conservation while accommodating for species uncertainty. PMID- 29334415 TI - Early burst in body size evolution is uncoupled from species diversification in diving beetles (Dytiscidae). AB - Changes in morphology are often thought to be linked to changes in species diversification, which is expected to leave a signal of early burst (EB) in phenotypic traits. However, such signal is rarely recovered in empirical phylogenies, even for groups with well-known adaptive radiation. Using a comprehensive phylogenetic approach in Dytiscidae, which harbours ~4,300 species with as much as 50-fold variation in body size among them, we ask whether pattern of species diversification correlates with morphological evolution. Additionally, we test whether the large variation in body size is linked to habitat preference and whether the latter influences species turnover. We found, in sharp contrast to most animal groups, that Dytiscidae body size evolution follows an early-burst model with subsequent high phylogenetic conservatism. However, we found no evidence for associated shifts in species diversification, which point to an uncoupled evolution of morphology and species diversification. We recovered the ancestral habitat of Dytiscidae as lentic (standing water), with many transitions to lotic habitat (running water) that are concomitant to a decrease in body size. Finally, we found no evidence for difference in net diversification rates between habitats nor difference in turnover in lentic and lotic species. This result, together with recent findings in dragonflies, contrasts with some theoretical expectations of the habitat stability hypothesis. Thus, a thorough reassessment of the impact of dispersal, gene flow and range size on the speciation process is needed to fully encompass the evolutionary consequences of the lentic-lotic divide for freshwater fauna. PMID- 29334416 TI - Investigating causal associations between use of nicotine, alcohol, caffeine and cannabis: a two-sample bidirectional Mendelian randomization study. AB - BACKGROUND AND AIMS: Epidemiological studies consistently show co-occurrence of use of different addictive substances. Whether these associations are causal or due to overlapping underlying influences remains an important question in addiction research. Methodological advances have made it possible to use published genetic associations to infer causal relationships between phenotypes. In this exploratory study, we used Mendelian randomization (MR) to examine the causality of well-established associations between nicotine, alcohol, caffeine and cannabis use. METHODS: Two-sample MR was employed to estimate bidirectional causal effects between four addictive substances: nicotine (smoking initiation and cigarettes smoked per day), caffeine (cups of coffee per day), alcohol (units per week) and cannabis (initiation). Based on existing genome-wide association results we selected genetic variants associated with the exposure measure as an instrument to estimate causal effects. Where possible we applied sensitivity analyses (MR-Egger and weighted median) more robust to horizontal pleiotropy. RESULTS: Most MR tests did not reveal causal associations. There was some weak evidence for a causal positive effect of genetically instrumented alcohol use on smoking initiation and of cigarettes per day on caffeine use, but these were not supported by the sensitivity analyses. There was also some suggestive evidence for a positive effect of alcohol use on caffeine use (only with MR-Egger) and smoking initiation on cannabis initiation (only with weighted median). None of the suggestive causal associations survived corrections for multiple testing. CONCLUSIONS: Two-sample Mendelian randomization analyses found little evidence for causal relationships between nicotine, alcohol, caffeine and cannabis use. PMID- 29334417 TI - Combining allele frequency and tree-based approaches improves phylogeographic inference from natural history collections. AB - Model selection approaches in phylogeography have allowed researchers to evaluate the support for competing demographic histories, which provides a mode of inference and a measure of uncertainty in understanding climatic and spatial influences on intraspecific diversity. Here, to rank all models in the comparison set and determine what proportion of the total support the top-ranked model garners, we conduct model selection using two analytical approaches-allele frequency-based, implemented in fastsimcoal2, and gene tree-based, implemented in phrapl. We then expand this model selection framework by including an assessment of absolute fit of the models to the data. For this, we utilize DNA isolated from existing natural history collections that span the distribution of red alder (Alnus rubra) in the Pacific Northwest of North America to generate genomic data for the evaluation of 13 demographic scenarios. The quality of DNA recovered from herbarium specimen leaf tissue was assessed for its utility and effectiveness in demographic model selection, specifically in the two approaches mentioned. We present strong support for the use of herbarium tissue in the generation of genomic DNA, albeit with the inclusion of additional quality control checks prior to library preparation and analyses with multiple approaches that incorporate various data. Analyses with allele frequency spectra and gene trees predominantly support A. rubra having experienced an ancient vicariance event with intermittent and frequent gene flow between the disjunct populations. Additionally, the data consistently fit the most frequently selected model, corroborating the model selection techniques. Finally, these results suggest that the A. rubra disjunct populations do not represent separate species. PMID- 29334418 TI - Antimicrobial and stress responses to increased temperature and bacterial pathogen challenge in the holobiont of a reef-building coral. AB - Global increases in coral disease prevalence have been linked to ocean warming through changes in coral-associated bacterial communities, pathogen virulence and immune system function. However, the interactive effects of temperature and pathogens on the coral holobiont are poorly understood. Here, we assessed three compartments of the holobiont (host, Symbiodinium and bacterial community) of the coral Montipora aequituberculata challenged with the pathogen Vibrio coralliilyticus and the commensal bacterium Oceanospirillales sp. under ambient (27 degrees C) and elevated (29.5 and 32 degrees C) seawater temperatures. Few visual signs of bleaching and disease development were apparent in any of the treatments, but responses were detected in the holobiont compartments. V. coralliilyticus acted synergistically and negatively impacted the photochemical efficiency of Symbiodinium at 32 degrees C, while Oceanospirillales had no significant effect on photosynthetic efficiency. The coral, however, exhibited a minor response to the bacterial challenges, with the response towards V. coralliilyticus being significantly more pronounced, and involving the prophenoloxidase-activating system and multiple immune system-related genes. Elevated seawater temperatures did not induce shifts in the coral-associated bacterial community, but caused significant gene expression modulation in both Symbiodinium and the coral host. While Symbiodinium exhibited an antiviral response and upregulated stress response genes, M. aequituberculata showed regulation of genes involved in stress and innate immune response processes, including immune and cytokine receptor signalling, the complement system, immune cell activation and phagocytosis, as well as molecular chaperones. These observations show that M. aequituberculata is capable of maintaining a stable bacterial community under elevated seawater temperatures and thereby contributes to preventing disease development. PMID- 29334419 TI - A Metallo Pro-Drug to Target CuII in the Context of Alzheimer's Disease. AB - Alzheimer's disease and oxidative stress are connected. In the present communication, we report the use of a MnII -based superoxide dismutase (SOD) mimic ([MnII (L)]+ , 1+ ) as a pro-drug candidate to target CuII -associated events, namely, CuII -induced formation of reactive oxygen species (ROS) and modulation of the amyloid-beta (Abeta) peptide aggregation. Complex 1+ is able to remove CuII from Abeta, stop ROS and prevent alteration of Abeta aggregation as would do the corresponding free ligand LH. Using 1+ instead of LH in further biological applications would have the double advantage to avoid the cell toxicity of LH and to benefit from its proved SOD-like activity. PMID- 29334420 TI - Copper-Catalyzed Regioselective Cleavage of C-X and C-H Bonds: A Strategy for Sulfur Dioxide Fixation. AB - The first example of direct fixation of sulfur dioxide between heteroaryls and aryl halides has been developed via copper-catalyzed regioselective cleavage of C X and C-H bonds under base-free and ligand-free conditions by using DABSO (1,4 diazabicyclo[2.2.2]octane bis(sulfur dioxide)) as a solid and bench-stable sulfur dioxide surrogate. This mild protocol results in double C-S bond-forming reactions from simple precursors in the absence of prefunctionalized organometallic reagents, arenediazonium salts, and iodonium salts which extends the still limited number of sulfur dioxide fixation strategies. PMID- 29334421 TI - A Survey of tooth morphology teaching methods employed in the United Kingdom and Ireland. AB - BACKGROUND: Tooth morphology is a central component of the dental curriculum and is applicable to all dental specialities. Traditional teaching methods are being supplemented with innovative strategies to tailor teaching and accommodate the learning styles of the recent generation of students. METHODS: An online survey was compiled and distributed to the staff involved in teaching tooth morphology in the United Kingdom and Ireland to assess the importance of tooth morphology in the dentistry curriculum and the methodologies employed in teaching. RESULTS: The results of the survey show that tooth morphology constitutes a small module in the dental curriculum. It is taught in the first 2 years of the dental curriculum but is applicable in the clinical years and throughout the dental career. Traditional teaching methods, lecture and practical, are being augmented with innovative teaching including e-learning via virtual learning environment, tooth atlas and e-books leading to blended learning. The majority of the schools teach both normal dental anatomy and morphologic variations of dental anatomy and utilise plastic teeth for practical and examination purposes. Learning the 3D aspects of tooth morphology was deemed important by most of the respondents who also agreed that tooth morphology is a difficult topic for the students. CONCLUSION: Despite being core to the dental curriculum, overall minimal time is dedicated to the delivery of tooth morphology, creating a reliance on the student to learn the material. New forms of delivery including computer-assisted learning tools should help sustain learning and previously acquired knowledge. PMID- 29334422 TI - Psychosocial risks at the workplace and quality of life in cancer survivors in employment. PMID- 29334423 TI - Mechanochemical Activation of Iron Cyano Complexes: A Prebiotic Impact Scenario for the Synthesis of alpha-Amino Acid Derivatives. AB - Mechanochemical activation of iron cyano complexes by ball milling results in the formation of HCN, which can be trapped and incorporated into alpha-aminonitriles. This prebiotic impact scenario can be extended by mechanochemically transforming the resulting alpha-aminonitriles into alpha-amino amides using a chemical route related to early Earth conditions. PMID- 29334424 TI - In Vivo EPR Characterization of Semi-Synthetic [FeFe] Hydrogenases. AB - EPR spectroscopy reveals the formation of two different semi-synthetic hydrogenases in vivo. [FeFe] hydrogenases are metalloenzymes that catalyze the interconversion of molecular hydrogen and protons. The reaction is catalyzed by the H-cluster, consisting of a canonical iron-sulfur cluster and an organometallic [2Fe] subsite. It was recently shown that the enzyme can be reconstituted with synthetic cofactors mimicking the composition of the [2Fe] subsite, resulting in semi-synthetic hydrogenases. Herein, we employ EPR spectroscopy to monitor the formation of two such semi-synthetic enzymes in whole cells. The study provides the first spectroscopic characterization of semi synthetic hydrogenases in vivo, and the observation of two different oxidized states of the H-cluster under intracellular conditions. Moreover, these findings underscore how synthetic chemistry can be a powerful tool for manipulation and examination of the hydrogenase enzyme under in vivo conditions. PMID- 29334426 TI - Current Resources for Evidence-Based Practice, January/February 2018. PMID- 29334425 TI - Updates From the Literature, January/February 2018. PMID- 29334427 TI - Management of Labor: Are the New Guidelines Justified? PMID- 29334428 TI - Development of Potent Inhibitors of the Mycobacterium tuberculosis Virulence Factor Zmp1 and Evaluation of Their Effect on Mycobacterial Survival inside Macrophages. AB - The enzyme Zmp1 is a zinc-containing peptidase that plays a critical role in the pathogenicity of Mycobacterium tuberculosis. Herein we describe the identification of a small set of Zmp1 inhibitors based on a novel 8 hydroxyquinoline-2-hydroxamate scaffold. Among the synthesized compounds, N (benzyloxy)-8-hydroxyquinoline-2-carboxamide (1 c) was found to be the most potent Zmp1 inhibitor known to date, and its binding mode was analyzed both by kinetics studies and molecular modeling, identifying critical interactions of 1 c with the zinc ion and residues in the active site. The effect of 1 c on intracellular Mycobacterium survival was assayed in J774 murine macrophages infected with M. tuberculosis H37Rv or M. bovis BCG and human monocyte-derived macrophages infected with M. tuberculosis H37Rv. Cytotoxicity and genotoxicity were also assessed. Overall, inhibitor 1 c displays interesting in vitro antitubercular properties worthy of further investigation. PMID- 29334429 TI - Superhydrophobic/Superhydrophilic Janus Fabrics Reducing Blood Loss. AB - Hemostatic fabrics are most commonly used in baseline emergency treatment; however, the unnecessary blood loss due to the excessive blood absorption by traditional superhydrophilic fabrics is overlooked. Herein, for the first time, superhydrophobic/superhydrophilic Janus fabrics (superhydrophobic on one side and superhydrophilic on the other) are proposed: the superhydrophilic part absorbs water in the blood to expedite the clotting while the superhydrophobic part prevents blood from further permeating. Compared with the common counterparts, effective bleeding control with reducing blood loss more than 50% can be achieved while the breathability largely remain by using Janus fabrics. The proposed prototypes can even prolong the survival time in the rat model with serious bleeding. This strategy for reducing blood loss via simply tuning wettability is promising for the practical applications. PMID- 29334430 TI - Preclinical therapeutic efficacy of the ciprofloxacin-eluting sinus stent for Pseudomonas aeruginosa sinusitis. AB - BACKGROUND: The ciprofloxacin-coated sinus stent (CSS) has unique therapeutic potential to deliver antibiotics to the sinuses. The objective of this study is to evaluate the efficacy of the CSS stent in eliminating Pseudomonas aeruginosa infection in a rabbit model of sinusitis. METHODS: A ciprofloxacin-eluting sinus stent was created by coating ciprofloxacin/Eudragit RS100 on biodegradable poly D/L-lactic acid (2 mg). After analyzing in-vitro inhibition of P aeruginosa (PAO 1 strain) biofilm formation, a total of 8 stents (4 shams, 4 CSSs) were placed unilaterally in rabbit maxillary sinuses via dorsal sinusotomy after inducing infection for 1 week with PAO-1. Animals were assessed 2 weeks after stent insertion with nasal endoscopy, sinus culture, computed tomography (CT) scan, histopathology, and scanning electron microscopy (SEM). RESULTS: PAO-1 biofilm formation was significantly reduced in vitro with exposure to the CSS (p < 0.0001). Insertion of the stent in PAO-1-infected rabbits for 2 weeks resulted in significant improvement in sinusitis according to endoscopy scoring (p < 0.0001) and CT scoring (p < 0.002). Histology and SEM revealed marked improvement in the structure of the mucosa and submucosa with no detection of biofilm structures in the CSS cohort. CONCLUSION: Although this study had a small sample size, we identified robust therapeutic efficacy of the CSS by reducing bacterial load and biofilm formation of P aeruginosa in a preclinical model of sinusitis after placement for 2 weeks. PMID- 29334431 TI - Activation state of circulating eosinophils in nasal polyposis. AB - BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a common disease with an uncertain pathophysiology. It is characterized by polyps rich in eosinophils, with an activation status already investigated at the tissue level. In a group of CRSwNP patients, we assessed the activation status of circulating eosinophils in the blood before migration into tissues. METHODS: Thirteen patients with CRSwNP and 16 healthy volunteers were enrolled. Several biologic parameters were studied: blood count of eosinophils; plasma eosinophil cationic protein; oxidative metabolism by chemiluminescence at baseline or when activated by phorbol 12-myristate 13-acetate or platelet-activating factor, with or without interleukin-5 (IL-5); percent of granulosar cells; and mean fluorescence intensity (MFI) by flow cytometry. RESULTS: The mean number of eosinophils was significantly higher in patients with CRSwNP, whose eosinophils showed increased oxidative metabolism in the basal or activated state significantly decreasing in the presence of IL-5. There was also a higher percentage of CD49d+ , CD25+ , and CCR3+ cells in patients, and a nonsignificant decrease in descending order in MFI between the control group, patients with normal eosinophil levels, patients with hypereosinophilia, and patients with aspirin-exacerbated respiratory disease. CONCLUSION: This study demonstrates a priming state of circulating eosinophils in CRSwNP patients when compared with healthy controls, as evidenced by the extent of oxidative metabolism, with increased sensitivity to IL-5 and by the observed variations of percent and MFI of CD49d, CCR3, and CD25. This priming is thus found at the peripheral level and occurs before the migration of eosinophils to polyps, reflecting the systemic and not just local nature of abnormalities in CRSwNP. PMID- 29334432 TI - Antibiotic use patterns in endoscopic sinus surgery: a survey of the American Rhinologic Society membership. AB - BACKGROUND: There is a paucity of data supporting antibiotic use in endoscopic sinus surgery (ESS). The objective of this study is to determine perioperative antibiotic use patterns and factors which influence use in ESS. METHODS: An online-based survey was distributed to members of the American Rhinologic Society (ARS). Outcomes included timing of perioperative antibiotic use, practice environment, years of experience, and patient factors that influenced antibiotic use. RESULTS: There were 204 responses (response rate 18.3%); 36.8% of respondents were in academic positions, 32.8% were in private practice, and 30.4% were in academic-affiliated private practice; 20.6% routinely gave preoperative antibiotics, most commonly to reduce bacterial burden (59.5%) and mucosal inflammation (59.5%); 54.4% routinely gave intraoperative antibiotics, most commonly to reduce the risk of postoperative infection (63.1%); 62.3% routinely gave postoperative antibiotics, citing the need to reduce the risk of postoperative infection (75.6%). Diagnosis influenced postoperative antibiotic use in 63.0%. Preoperative antibiotics were more likely to be prescribed by respondents with more than 5 years of experience (odds ratio [OR] 2.97; 95% confidence interval [CI], 1.04 to 8.54; p = 0.043). Compared to private practitioners, academicians were more likely to give intraoperative antibiotics (OR 2.68; 95% CI, 1.39 to 5.17; p = 0.003), but not preoperative or postoperative antibiotics. Use of nonabsorbable packing was significantly associated with use of postoperative antibiotics (OR 2.01; 95% CI, 1.07 to 3.77; p = 0.031). CONCLUSION: This study demonstrates the significant variation in perioperative antibiotic use among otolaryngologists. These results provide support for the establishment of evidence-based practice guidelines for perioperative antibiotic use in ESS. PMID- 29334433 TI - Happy Birthday Karel! PMID- 29334434 TI - The Case for Stabilized Stannous Fluoride Dentifrice: An Advanced Formulation Designed for Patient Preference. AB - Oral diseases, particularly caries and gingivitis, continue to be widespread. Incorporating a stabilized stannous fluoride dentifrice into patients' daily oral hygiene routine is a convenient, cost effective approach to improve and protect their oral health and the appearance of their smile. Unlike other common fluorides that only provide anti-caries benefits (e.g., sodium fluoride and sodium monofluorophosphate), stabilized stannous fluoride formulations have demonstrated broader and significantly greater protection, also reducing plaque, gingivitis, erosion, sensitivity, and halitosis. To deliver the full range of benefits and simultaneously deliver whitening and tartar control benefits, stannous fluoride requires careful formulation. Procter & Gamble is the only dentifrice manufacturer with decades of patented innovations to overcome these formulation challenges, resulting in a large portfolio of stannous fluoride containing dentifrice products marketed under the Crest(r) Pro-HealthTM name that are available today. The most recent innovation is a "smooth texture" variant of Crest Pro-Health, containing stabilized stannous fluoride with zinc citrate as the anti-calculus agent. This product was developed to deliver a patient preferred brushing experience with the full range of benefits offered by Crest Pro-Health. This article discusses two common misconceptions about dentifrice, describes the history of key Crest stannous fluoride innovations, and outlines the research in this issue demonstrating health and cosmetic benefits of the new Crest Pro-Health smooth texture variant. PMID- 29334435 TI - Comparative Antiplaque Effect of Two Antimicrobial Dentifrices: Laboratory and Clinical Evaluations. AB - OBJECTIVES: To compare the effect of a stannous fluoride dentifrice versus a triclosan-containing dentifrice on the reduction of plaque using in vitro and clinical models. METHODS: Both investigations evaluated a novel 0.454% stabilized stannous fluoride dentifrice (Crest(r) Pro-HealthTM smooth formula) versus a sodium fluoride/triclosan positive control dentifrice (Colgate(r) Total(r)). The in vitro evaluation utilized the Plaque Glycolysis and Regrowth Model (PGRM), wherein the metabolic effects (acid production/glycolysis inhibition) of the dentifrices were assessed on plaque biofilms grown on glass rods after three days growth and a single dentifrice treatment. Treatments were evaluated via analysis of variance, Student's t-test. The clinical trial was a four-week, single-center, randomized and controlled, double-blind, parallel group study, where 120 adults were randomized to one of the two dentifrices for use at home according to manufacturer's instructions. Plaque was evaluated at baseline and Week 4 with the Rustogi Modified Navy Plaque Index (RMNPI). Statistical analyses were via analysis of covariance. RESULTS: In vitro PGRM: The stannous fluoride dentifrice provided 43.3% glycolysis inhibition compared to 27.5% for the triclosan control, and the pH decrease associated with acid production was significantly less for stannous fluoride (0.87) versus triclosan (1.11); p < 0.05. Clinical trial: One hundred eighteen (118) subjects completed the study with fully evaluable data. Both dentifrice groups demonstrated statistically significant (p < 0.0001) reductions in plaque at Week 4 compared with baseline, with the stannous fluoride dentifrice producing a significantly lower adjusted mean Week 4 plaque score (p < 0.0001) versus the triclosan positive control for whole mouth plaque (23.1% lower) and interproximal plaque (43.5% lower). Both dentifrices were well tolerated. CONCLUSIONS: The stabilized stannous fluoride dentifrice provided statistically significant reductions in plaque glycolysis in vitro and plaque growth in vivo compared to the triclosan dentifrice. Results for both studies were consistent. PMID- 29334436 TI - Assessment of the Effects of a Novel Stabilized Stannous Fluoride Dentifrice on Gingivitis in a Two-Month Positive-Controlled Clinical Study. AB - OBJECTIVES: The aim of this study was to compare the antibleeding/antigingivitis effectiveness of a newly formulated 0.454% stabilized stannous fluoride dentifrice and a marketed positive control triclosan-containing dentifrice in adults with mild-to-moderate gingivitis. METHODS: This single-center, two-month, randomized and controlled, double-blind, parallel group clinical trial involved adults with preexisting mild-to-moderate gingivitis. Baseline bleeding and gingivitis levels were assessed with the Gingival Bleeding Index (GBI) and Lobene Modified Gingival Index (MGI). Subjects were randomly assigned to either a new smooth formula 0.454% stabilized stannous fluoride test dentifrice (Crest(r) Pro HealthTM) or a commercially available positive control 0.30% triclosan dentifrice (Colgate(r) Total(r)). Subjects brushed with their assigned dentifrice at home according to the manufacturer's instructions. At Month 2, subjects were re evaluated for bleeding and gingivitis as at Baseline, with MGI and GBI evaluations. RESULTS: Of the 200 subjects randomized to treatment, 197 completed the study and had fully evaluable data. At Month 2, both the stannous fluoride and triclosan control dentifrices produced statistically significant reductions (p < 0.0001) in the mean number of bleeding sites, MGI, and GBI compared to Baseline. Use of this 0.454% stannous fluoride dentifrice resulted in 22% fewer bleeding sites versus the positive control triclosan dentifrice (p < 0.0001). Similarly, after two months of brushing, the stannous fluoride dentifrice group showed statistically significant lower mean MGI and GBI scores than subjects using the triclosan positive control dentifrice (p < 0.0001). Both dentifrices were well-tolerated. CONCLUSIONS: Subjects brushing with a newly formulated stannous fluoride dentifrice had statistically significantly fewer bleeding sites and less gingivitis than those using a positive control triclosan dentifrice after two months. PMID- 29334437 TI - A Randomized Clinical Trial to Measure the Erosion Protection Benefits of a Novel Stabilized Stannous Fluoride Dentifrice versus a Control Dentifrice. AB - OBJECTIVES: The aim of this investigation was to assess the erosion protection ability of a novel stabilized stannous fluoride (SnF2) dentifrice and a control sodium fluoride dentifrice (NaF) using a well-credentialed human in situ model. METHODS: A novel smooth texture 0.454% stabilized SnF2 dentifrice (Crest(r) Pro HealthTM smooth formula) and a 0.23% NaF marketed control dentifrice with 5% potassium nitrate (Sensodyne(r) Pronamel(r)) were compared in a 10-day, single center, randomized, controlled, double-blind, two-treatment, three-period crossover in situ clinical trial. Subjects wore a mandibular buccal appliance fitted with eight enamel specimens for approximately six hours over the course of each study day. Twice daily, subjects brushed the lingual surfaces of their teeth for 30 seconds while wearing the appliance, then swished with their assigned treatment toothpaste slurry for 90 seconds under the supervision of clinic staff. Erosive acid challenges with a citric acid-containing beverage (commercial orange juice) were done four times each day. RESULTS: The SnF2 dentifrice provided 26.9% greater erosion protection relative to the NaF dentifrice at Day 10 (p < 0.03). Adjusted means of enamel surface loss at Day 10 were 9.117 um for the SnF2 dentifrice and 12.471 um for the NaF marketed control. CONCLUSIONS: These results demonstrate the stabilized SnF2 dentifrice offered greater protection over the NaF dentifrice against the initiation and progression of dental erosion. PMID- 29334438 TI - In Vitro and In Vivo Evaluations of the Anticalculus Effect of a Novel Stabilized Stannous Fluoride Dentifrice. AB - OBJECTIVES: To evaluate the effect of a novel stannous fluoride dentifrice with zinc citrate on calculus inhibition using both in vitro and clinical models. METHODS: Each investigation tested a novel stabilized 0.454% stannous fluoride dentifrice with zinc citrate as an anticalculus agent (Crest(r) Pro-HealthTM smooth formula) compared to a negative control fluoride dentifrice. The in vitro study used the modified Plaque Growth and Mineralization Model (mPGM). Plaque biofilms were prepared and mineralized by alternate immersion of glass rods in human saliva and artificial mineralization solution. Treatments of 25% w/w dentifrice/water slurries were carried out for 60 seconds daily for 6 days, between saliva and mineralization solution immersions. Plaque calcium levels were determined by digestion and inductively coupled plasma optical emission spectroscopy. Student's t-test (p < 0.05) was used for statistical analysis. The clinical study was a parallel group, double-blind, randomized, and controlled trial. Following a dental prophylaxis, subjects entered a two-month run-in phase. At the end, they received a Volpe-Manhold Index (V-MI) calculus examination. Eighty (80) qualified subjects who had formed at least 9 mm of calculus on the linguals of the mandibular anterior teeth were re-prophied and randomly assigned to either the stannous fluoride dentifrice or the negative control. Subjects brushed twice daily, unsupervised, during the three-month test period, returning at Weeks 6 and 12 for safety and V-MI examinations. Statistical analyses were via ANCOVA. RESULTS: In vitro mPGM: The stabilized stannous fluoride dentifrice showed 20% less in vitro tartar formation, measured as calcium accumulation normalized by biofilm mass, versus the negative control (106.95 versus 133.04 ug Ca/mg biofilm, respectively, p < 0.05). Clinical Trial: Seventy-eight (78) subjects completed with fully evaluable data. The stannous fluoride dentifrice group had 15.1% less adjusted mean calculus at Week 6 compared to the negative control group (p = 0.05) and 21.7% less calculus at Week 12 (p < 0.01). Both dentifrices were well-tolerated. CONCLUSIONS: The stannous fluoride dentifrice produced significant anticalculus benefits in vitro and in a clinical trial compared to a negative control. PMID- 29334439 TI - Pharmacogenetics - The Year in Review. PMID- 29334440 TI - Multifactorial Splenomegaly. AB - Splenomegaly is an unusual finding among North Americans, but is commonly seen in many parts of the world. Increasingly, it can be encountered locally among recent immigrant and refugee populations. A broad differential diagnosis is required. We report the case of a 33-year-old refugee with multiple potential causes for splenomegaly. Empiric treatment of one of the infectious contributors to his splenomegaly resulted in a significant improvement of his quality of life, illustrating the importance of a thorough evaluation of potential causes of splenomegaly, especially in refugee and immigrant populations. PMID- 29334441 TI - Statin Pharmacogenetics: Moving from Toxicity to Efficacy. PMID- 29334443 TI - The Sanford School of Medicine's Healthcare Quality Improvement Program: Connecting Education with Quality Improvement. PMID- 29334442 TI - A Rare Initial Presentation of Primary Diffuse Leptomeningeal PNET in a 10-Year Old-Male. AB - Primary leptomeningeal primitive neuroectodermal tumors (PNETs) are extremely rare childhood central nervous system malignancies harboring a very poor prognosis. There is no consensus treatment for these tumors to date. We report a case of a 10-year-old male who presented with mental status change, hydrocephalus, intracranial and spinal diffuse leptomeningeal enhancement without a primary mass upon cranial imaging and a negative initial biopsy until five months into his presentation. He responded significantly well to initial chemotherapy and radiotherapy. PMID- 29334444 TI - Pregnancy and Parenthood During Medical School. AB - PURPOSE: The stress of pregnancy and parenthood during the intense educational experience of medical school could increase the risk of student burnout. Because 9.2 percent of U.S. medical students are parents by graduation, it would seem prudent to include this topic in wellness programs and policies. The purpose of this study was to determine the effects of pregnancy and parenthood on medical students. METHOD: This was a cross-sectional, internet survey distributed to all four classes of medical students at the University of South Dakota Sanford School of Medicine during the 2016-2017 academic year. The survey determined self reported pregnancy and parenthood information, knowledge of a medical school pregnancy policy, and policy recommendations. RESULTS: More than 85 percent of the 194 respondents recommended that the following elements be included in an institutional policy: process for arranging parental leave, how leave time might affect graduation, how missed requirements could be made up, and how to request special accommodation or leave. Twenty-nine of the respondents (15 percent) were parents or currently pregnant. Eight pregnancies during medical school were associated with complications, including three miscarriages. Of the 18 students who reported maternity or paternity leave, 13 (72 percent) and 10 (56 percent) would have extended their leave time if it did not delay graduation or only reduced their number of elective rotations, respectively. No student would choose to extend leave if it would delay graduation. CONCLUSIONS: This survey is the first of its kind investigating pregnancy and parenthood in medical students attending a U.S. medical school. Students want schools to provide clear, well defined guidelines, scheduling flexibility and administrators who are approachable and understanding of their individual circumstances. PMID- 29334445 TI - The Father of the Problem Oriented Medical Record. PMID- 29334446 TI - Pediatric Community Acquired Pneumonia. AB - Pediatric community acquired pneumonia (CAP) is frequently encountered by medical providers and is one of the most common reasons for hospital admission. CAP is known to cause significant morbidity and mortality, causing greater than 2 million deaths annually worldwide in children younger than five years old. The Infectious Disease Society of America (IDSA) released guidelines in 2011 with recommendations regarding appropriate diagnosis and management of community acquired pneumonia for children greater than 3 months age, with the goal of assisting providers in clinical decision making. The guidelines do not recommend routine diagnostic work up for previously healthy, appropriately immunized patients presenting with mild CAP and are otherwise candidates for outpatient treatment. Diagnostic work up indicated for patients presenting with moderate to severe disease include CBC with differential, blood culture, acute phase reactants and chest radiography. Providers may also consider testing for influenza, mycoplasma pneumoniae, and other viral respiratory pathogens depending on the patient's presentation. Antibiotics are not routinely recommended, as the majority of cases are caused by viral pathogens. Narrow spectrum antibiotics are indicated for empiric treatment of bacterial CAP in fully immunized pediatric patients who are not penicillin allergic. Despite these new recommendations, there continues to be delay in changing the methods of practice in some hospitals and clinics. It is important that providers are familiar with the most current guidelines to minimize unnecessary laboratory testing and imaging in the outpatient setting for mild cases, and to use evidence based recommendations for laboratory work up, imaging, and treatment in the inpatient setting. PMID- 29334447 TI - The Heart of the Matter: Antidiabetic Medication Effects on Cardiovascular Outcomes. PMID- 29334448 TI - Quality Focus: Expanding Quality Improvement to Achieve Positive Health Outcomes. PMID- 29334454 TI - Aurophilic Interactions in [(L)AuCl]...[(L')AuCl] Dimers: Calibration by Experiment and Theory. AB - Attractive metallophilic (aurophilic, argentophilic, cuprophilic, etc.) interactions play an important role in arrangement and stabilization of oligonuclear metal ion complexes. We report a combined experimental and theoretical assessment of aurophilic interactions in closed-shell gold(I) dimers. The experimental binding energies were obtained for charged [(LH)AuCl]+...[(L')AuCl] dimers (L is either a phosphine or an N-heterocyclic carbene ligand) in the gas phase. These energies served for benchmarking of correlated quantum chemical calculations (CCSD(T)-calibrated SCS-MP2/CBS method) that were then applied to neutral [(L)AuCl]...[(L')AuCl] dimers. The overall attractive interactions between monomeric units are in the order of 100-165 kJ mol-1 in the charged dimers and of 70-105 kJ mol-1 in the corresponding neutral dimers. In the neutral dimers, pure aurophilic interactions account for 25-30 kJ mol-1, the dipole-dipole interactions for 30-45 kJ mol-1, and the L...L' "inter ligand" dispersion interactions for 5-25 kJ mol-1. Energy of the aurophilic interactions is thus comparable or even larger than that of strong hydrogen bonds. PMID- 29334455 TI - Modulating the Molybdenum Coordination Sphere of Escherichia coli Trimethylamine N-Oxide Reductase. AB - The well-studied enterobacterium Escherichia coli present in the human gut can reduce trimethylamine N-oxide (TMAO) to trimethylamine during anaerobic respiration. The TMAO reductase TorA is a monomeric, bis-molybdopterin guanine dinucleotide (bis-MGD) cofactor-containing enzyme that belongs to the dimethyl sulfoxide reductase family of molybdoenzymes. We report on a system for the in vitro reconstitution of TorA with molybdenum cofactors (Moco) from different sources. Higher TMAO reductase activities for TorA were obtained when using Moco sources containing a sulfido ligand at the molybdenum atom. For the first time, we were able to isolate functional bis-MGD from Rhodobacter capsulatus formate dehydrogenase (FDH), which remained intact in its isolated state and after insertion into apo-TorA yielded a highly active enzyme. Combined characterizations of the reconstituted TorA enzymes by electron paramagnetic resonance spectroscopy and direct electrochemistry emphasize that TorA activity can be modified by changes in the Mo coordination sphere. The combination of these results together with studies of amino acid exchanges at the active site led us to propose a novel model for binding of the substrate to the molybdenum atom of TorA. PMID- 29334456 TI - Building Ion-Conduction Highways in Polymeric Electrolytes by Manipulating Protein Configuration. AB - Solid polymer electrolytes play a critical role in the development of safe, flexible, and all-solid-state energy storage devices. However, the low ion conductivity has been the primary challenge impeding them from practical applications. Here, we propose a new biotechnology to fabricate novel protein ceramic hybrid nanofillers for simultaneously boosting the ionic conductivity, mechanical properties, and even adhesion properties of solid polymer electrolytes. This hybrid nanofiller is fabricated by coating ion-conductive soy proteins onto TiO2 nanoparticles via a controlled denaturation process in appropriate solvents and conditions. It is found that the chain configuration and protein/TiO2 interactions in the hybrid nanofiller play critical roles in improving not only the mechanical properties but also the ion conductivity, electrochemical stability, and adhesion properties. Particularly, the ion conductivity is improved by one magnitude from 5 * 10-6 to 6 * 10-5 S/cm at room temperature. To understand the possible mechanisms, we perform molecular simulation to study the chain configuration and protein/TiO2 interactions. Simulation results indicate that the denaturation environment and procedures can significantly change the protein configuration and the protein/TiO2 interactions, both of which are found to be critical for the ion conductivity and mechanical properties of the resultant solid composite electrolytes. This study indicates that biotechnology of manipulating protein configuration can bring novel and promising strategies to build unique ion channels for fast ion conduction in solid polymer electrolytes. PMID- 29334457 TI - New Mechanism for Ferroelectricity in the Perovskite Ca2-xMnxTi2O6 Synthesized by Spark Plasma Sintering. AB - Perovskite oxides hosting ferroelectricity are particularly important materials for modern technologies. The ferroelectric transition in the well-known oxides BaTiO3 and PbTiO3 is realized by softening of a vibration mode in the cubic perovskite structure. For most perovskite oxides, octahedral-site tilting systems are developed to accommodate the bonding mismatch due to a geometric tolerance factor t = (A-O)/[?2(B-O)] < 1. In the absence of cations having lone-pair electrons, e.g., Bi3+ and Pb2+, all simple and complex A-site and B-site ordered perovskite oxides with a t < 1 show a variety of tilting systems, and none of them become ferroelectric. The ferroelectric CaMnTi2O6 oxide is, up to now, the only one that breaks this rule. It exhibits a columnar A-site ordering with a pronounced octahedral-site tilting and yet becomes ferroelectric at Tc ~ 650 K. Most importantly, the ferroelectricity at T < Tc is caused by an order-disorder transition instead of a displacive transition; this character may be useful to overcome the critical thickness problem experienced in all proper ferroelectrics. Application of this new ferroelectric material can greatly simplify the structure of microelectronic devices. However, CaMnTi2O6 is a high-pressure phase obtained at 7 GPa and 1200 degrees C, which limits its application. Here we report a new method to synthesize a gram-level sample of ferroelectric Ca2-xMnxTi2O6, having the same crystal structure as CaMnTi2O6 and a similarly high Curie temperature. The new finding paves the way for the mass production of this important ferroelectric oxide. We have used neutron powder diffraction to identify the origin of the peculiar ferroelectric transition in this double perovskite and to reveal the interplay between magnetic ordering and the ferroelectric displacement at low temperatures. PMID- 29334458 TI - Direct Electrochemical Vibrio DNA Sensing Adopting Highly Stable Graphene-Flavin Mononucleotide Aqueous Dispersion Modified Interface. AB - A biofunctionalized graphene nanohybrid was prepared by simultaneously sonicating graphene and riboflavin 5'-monophosphate sodium salt (FMNS). FMNS, as a biodispersant, showed an efficient stabilization for obtaining highly dispersed graphene nanosheets in an aqueous solution. Due to the superior dispersion of graphene and the excellent electrochemical redox activity of FMNS, a direct electrochemical DNA sensor was fabricated by adopting the inherent electrochemical redox activity of graphene-FMNS (Gr-FMNS). The comparison between using traditional electrochemical indicator ([Fe(CN)6]3-/4-) and using the self signal of Gr-FMNS was fully conducted to study the DNA-sensing performance. The results indicate that the proposed DNA-sensing platform displays fine selectivity, high sensitivity, good stability, and reproducibility using either [Fe(CN)6]3-/4- probe or the self-signal of Gr-FMNS. The two methods display the same level of detection limit: 7.4 * 10-17 M (using [Fe(CN)6]3-/4-) and 8.3 * 10 17 M (using self-signal), respectively, and the latter exhibits higher sensitivity. Furthermore, the sensing platform also can be applied for the DNA determination in real samples. PMID- 29334460 TI - Multiple Stimuli Responses of Stereo-Isomers of AIE-Active Ethynylene-Bridged and Pyridyl-Modified Tetraphenylethene. AB - Luminescent molecules with aggregation-induced emission (AIE) property or AIE active luminogens (AIE-gens) are typical stimuli-responsive materials. Many AIE gens have shown luminescent responses to mechano-, thermo-, electro-, vapo-, and/or solvato-stimulus, but the detailed structure-property relationship has been addressed for only a few of them. Here, we report a tetraphenylethene (TPE) derivative with pyridyl modifiers and ethynylene bridges. The (Z)- and (E) isomers are clearly purified, and both of them are AIE-active and demonstrate multiple luminescent responses to external stimuli. Distinct from other reported TPE derivatives, the two isomers show negative solvatochromism due to the large dipole in the ground electronic state. By correlating with the single crystal structures, the subtle differences in quantum efficiency and emission peak wavelength of the solids of the (Z)- and (E)-isomers are rationally explained. Moreover, the ground powder of the (E)-isomer can recover its emission color from green to blue in the air at room temperature but the (Z)-isomer cannot. This difference is interpreted by a mechanism of water-triggered conformational variation, which depends on the hydrogen bond formation between pyridyl moieties and water molecules in the air. In addition to the reversible emission color changes by cyclic grinding-fuming treatments, both of the isomers exhibit a reversible luminescent response to acid-base treatments by switching the emission color between green (basic) and yellow (acid), owing to the incorporation of pyridyl units into the molecule. The unprecedented multiple stimuli-responsive behaviors and clear mechanism explanations allow this kind of AIE-gens to be promising smart materials. PMID- 29334459 TI - Development of CHARMM-Compatible Force-Field Parameters for Cobalamin and Related Cofactors from Quantum Mechanical Calculations. AB - Corrinoid cofactors such as cobalamin are used by many enzymes and are essential for most living organisms. Therefore, there is broad interest in investigating cobalamin-protein interactions with molecular dynamics simulations. Previously developed parameters for cobalamins are based mainly on crystal structure data. Here, we report CHARMM-compatible force field parameters for several corrinoids developed from quantum mechanical calculations. We provide parameters for corrinoids in three oxidation states, Co3+, Co2+, and Co1+, and with various axial ligands. Lennard-Jones parameters for the cobalt center in the Co(II) and Co(I) states were optimized using a helium atom probe, and partial atomic charges were obtained with a combination of natural population analysis (NPA) and restrained electrostatic potential (RESP) fitting approaches. The Force Field Toolkit was used to optimize all bonded terms. The resulting parameters, determined solely from calculations of cobalamin alone or in water, were then validated by assessing their agreement with density functional theory geometries and by analyzing molecular dynamics simulation trajectories of several corrinoid proteins for which X-ray crystal structures are available. In each case, we obtained excellent agreement with the reference data. In comparison to previous CHARMM-compatible parameters for cobalamin, we observe a better agreement for the fold angle and lower RMSD in the cobalamin binding site. The approach described here is readily adaptable for developing CHARMM-compatible force-field parameters for other corrinoids or large biomolecules. PMID- 29334461 TI - Enhanced Proton Loss from Neutral Free Radicals: Toward Carbon-Centered Superacids. AB - Radical centers close to protons are known to enhance their dissociation. Investigation of the generality of this radical enhanced deprotonation (RED shift) phenomenon, and the kinds of structures in which it operates, are reported. The pKas for sulfinic, sulfonic, pentan-2,4-dione, and Meldrum's acid species, with adjacent radicals centered on C-, N-, and O atoms, were computed by a DFT method from free energies of deprotonation. All series showed significant RED-shifts that increased with the electronegativity of the radical center. The hugely negative pKa obtained for a Meldrum's acid with an alkoxyl radical substituent showed it to belong to the superacid class. The ethyne unit was found to be uniquely effective at enhancing acidity and conducting RED-shifts through chains up to and beyond 20 atoms. These connector units enable a radical center to alter the pKa of a spatially remote acidic group. RED-shifted species were characterized by conjugate radical anions displaying site exchange of spin with electronic charge. PMID- 29334463 TI - Torquoselective Mechanochemical Activation of the Staudinger Reaction To Form beta-Lactams. AB - The Staudinger reaction yielding beta-lactam rings via [2 + 2] cycloaddition is a torquoselective reaction where the stereochemistry of the product can be steered by suitable substituents. Although the mechanochemical ring-opening of beta lactams has been investigated recently, the force-assisted synthesis of this important functional four-ring motif remains unexplored. As it will be computationally demonstrated, mechanochemical activation greatly reduces the barrier of the rate-limiting ring-closure step while, at the same time, preserves its torquoselectivity. This finding strongly suggests that strained four-membered rings can be readily incorporated in chain molecules using sonication techniques that greatly enhance reactivity while conserving selectivity. PMID- 29334462 TI - Pot-Economy Autooxidative Condensation of 2-Aryl-2-lithio-1,3-dithianes. AB - The autoxidative condensation of 2-aryl-2-lithio-1,3-dithianes is here reported. Treatment of 2-aryl-1,3-dithianes with n-BuLi in the absence of any electrophile leads to condensation of three molecules of 1,3-dithianes and formation of highly functionalized alpha-thioether ketones orthothioesters in 51-89% yields upon air exposure. The method was further expanded to benzaldehyde dithioacetals, affording corresponding orthothioesters and alpha-thioether ketones in 48-97% yields. The experimental results combined with density functional theory studies support a mechanism triggered by the autoxidation of 2-aryl-2-lithio-1,3 dithianes to yield a highly reactive thioester that undergoes condensation with two other molecules of 2-aryl-2-lithio-1,3-dithiane. PMID- 29334464 TI - Asymmetric Synthesis of Secondary and Tertiary Propargylic Alcohols by Umpolung of Acetylenic Sulfones and ortho-Sulfinyl Carbanions. AB - The generation of diastereomerically enriched secondary benzyl propargyl alcohols by the asymmetric addition of ortho-sulfinylbenzyl carbanions to sulfonylacetylene derivatives via formation of a Csp-Csp3 bond is described. This reaction proceeds through an unusual alpha-attack (anti-Michael addition) of the ortho-sulfinylbenzyl carbanions, followed by elimination of the arylsulfonyl moiety. The scope of this alkynylation reaction is also discussed. Moreover, the development of a new approach for the synthesis of optically active tertiary benzylpropargyl alcohols is described, discussing the possible stereocourse of the reaction so as the influence of the ether 18-crown-6 and steric importance of acetylenic substituent. PMID- 29334466 TI - alpha-N-Heteroarylation and alpha-Azidation of Ketones via Enolonium Species. AB - Enolonium species, resulting from the umpolung of ketone enolates by Koser's hypervalent iodine reagents activated by boron trifluoride, react with a variety of nitrogen heterocycles to form alpha-aminated ketones. The reactions are mild and complete in 4-5 h. Additionally, alpha-azidation of the enolonium species takes place using trimethylsilyl azide as a convenient source of azide nucleophile. PMID- 29334465 TI - Design of a "Mini" Nucleic Acid Probe for Cooperative Binding of an RNA-Repeated Transcript Associated with Myotonic Dystrophy Type 1. AB - Toxic RNAs containing expanded trinucleotide repeats are the cause of many neuromuscular disorders, one being myotonic dystrophy type 1 (DM1). DM1 is triggered by CTG-repeat expansion in the 3'-untranslated region of the DMPK gene, resulting in a toxic gain of RNA function through sequestration of MBNL1 protein, among others. Herein, we report the development of a relatively short miniPEG gamma peptide nucleic acid probe, two triplet repeats in length, containing terminal pyrene moieties, that is capable of binding rCUG repeats in a sequence specific and selective manner. The newly designed probe can discriminate the pathogenic rCUGexp from the wild-type transcript and disrupt the rCUGexp-MBNL1 complex. The work provides a proof of concept for the development of relatively short nucleic acid probes for targeting RNA-repeat expansions associated with DM1 and other related neuromuscular disorders. PMID- 29334469 TI - Erratum. PMID- 29334467 TI - Robot-assisted upper extremity rehabilitation for cervical spinal cord injuries: a systematic scoping review. AB - : Abstact Purpose: To provide an overview of the feasibility and outcomes of robotic-assisted upper extremity training for individuals with cervical spinal cord injury (SCI), and to identify gaps in current research and articulate future research directions. MATERIALS AND METHODS: A systematic search was conducted using Medline, Embase, PsycINFO, CCTR, CDSR, CINAHL and PubMed on June 7, 2017. Search terms included 3 themes: (1) robotics; (2) SCI; (3) upper extremity. Studies using robots for upper extremity rehabilitation among individuals with cervical SCI were included. Identified articles were independently reviewed by two researchers and compared to pre-specified criteria. Disagreements regarding article inclusion were resolved through discussion. The modified Downs and Black checklist was used to assess article quality. Participant characteristics, study and intervention details, training outcomes, robot features, study limitations and recommendations for future studies were abstracted from included articles. RESULTS: Twelve articles (one randomized clinical trial, six case series, five case studies) met the inclusion criteria. Five robots were exoskeletons and three were end-effectors. Sample sizes ranged from 1 to 17 subjects. Articles had variable quality, with quality scores ranging from 8 to 20. Studies had a low internal validity primarily from lack of blinding or a control group. Individuals with mild-moderate impairments showed the greatest improvements on body structure/function and performance-level measures. This review is limited by the small number of articles, low-sample sizes and the diversity of devices and their associated training protocols, and outcome measures. CONCLUSIONS: Preliminary evidence suggests robot-assisted interventions are safe, feasible and can reduce active assistance provided by therapists. Implications for rehabilitation Robot assisted upper extremity training for individuals with cervical spinal cord injury is safe, feasible and can reduce hands-on assistance provided by therapists. Future research in robotics rehabilitation with individuals with spinal cord injury is needed to determine the optimal device and training protocol as well as effectiveness. PMID- 29334470 TI - Heterologous Expression of Rhizobial CelC2 Cellulase Impairs Symbiotic Signaling and Nodulation in Medicago truncatula. AB - The infection of legume plants by rhizobia is tightly regulated to ensure accurate bacterial penetration, infection, and development of functionally efficient nitrogen-fixing root nodules. Rhizobial Nod factors (NF) have key roles in the elicitation of nodulation signaling. Infection of white clover roots also involves the tightly regulated specific breakdown of the noncrystalline apex of cell walls in growing root hairs, which is mediated by Rhizobium leguminosarum bv. trifolii cellulase CelC2. Here, we have analyzed the impact of this endoglucanase on symbiotic signaling in the model legume Medicago truncatula. Ensifer meliloti constitutively expressing celC gene exhibited delayed nodulation and elicited aberrant ineffective nodules, hampering plant growth in the absence of nitrogen. Cotreatment of roots with NF and CelC2 altered Ca2+ spiking in root hairs and induction of the early nodulin gene ENOD11. Our data suggest that CelC2 alters early signaling between partners in the rhizobia-legume interaction. PMID- 29334471 TI - Special Issue on "Constructing the Self Online". PMID- 29334472 TI - When Second Life Becomes Real Life: The Evolution of Self-Presentation. PMID- 29334475 TI - Abandonment of assistive products: assessing abandonment levels and factors that impact on it. AB - PURPOSE: To investigate the levels and factors that influence the abandonment of assistive products by users of a local reference rehabilitation center. METHODS: This observational study involved users who received services and assistive products provided by our center of rehabilitation. Users were identified using the records of the center and their responses about the abandonment were collected through face-to-face interviews. RESULTS: The abandonment level of assistive products was 19.38%. 83.5% of the users use at least one of the assistive products they have received. Rigid and folding frame wheelchairs, with and without postural support devices, as well as shower wheelchairs, presented the lowest abandonment levels, followed by canes and lower limb orthoses. Upper limb orthoses, Knee Ankle Foot Orthosis(KAFO), walkers, crutches and lower and upper limb prostheses all presented higher abandonment levels. CONCLUSION: The simultaneous use of mutiple assistive products, users perception on the importance of using them, and completing the rehabilitation treatment were found to impact on the short and long-term use of products. The study offers inputs to decision making and planning for assistive technology provision in developing countries with regard to expected demand and service delivery. Implications for Rehabilitation Data about the abandonment of assistive products in Sao Paulo, Brazil, could assist informing decision making on provision and servicing of these products in similar settings. The strong correlation found between abandonment levels and the simultaneous use of multiple devices should be taken into account by health professionals when prescribing assistive products and providing guidance to users. The need for follow up on the use of assistive products after discharge from rehabilitation treatment becomes strikingly clear, as data show that completing treatment is significantly relevant when evaluating abandonment levels. As assistive products users' perception about the importance of using these devices is shown to be significant in explaining abandonment, it is mandatory that health and rehabilitation professionals take it into account when providing guidance and training users. PMID- 29334476 TI - Biological Control of Botrytis cinerea: Interactions with Native Vineyard Yeasts from Washington State. AB - Native yeasts are of increasing interest to researchers, grape growers, and vintners because of their potential for biocontrol activity and their contributions to the aroma, flavor, and mouthfeel qualities of wines. To assess biocontrol activity, we tested 11 yeasts from Washington vineyards, representing isolates of Candida saitoana, Curvibasidium pallidicorallinum, Metschnikowia chrysoperlae, M. pulcherrima, Meyerozyma guilliermondii, Saccharomyces cerevisiae, and Wickerhamomyces anomalus, for ability to colonize Thompson Seedless grape berries, inhibit the growth of Botrytis cinerea in vitro, and suppress disease symptoms on isolated berries. The yeast-like fungus Aureobasidium pullulans was also included based on its known biocontrol activity against B. cinerea in studies on apple and grape. All yeast strains multiplied rapidly in grape berries and reached densities of over log 6 cells per wound as early as 2 days after inoculation with 200 cells. One of the Botrytis isolates used in this study was much less virulent than the others and was provisionally identified as B. prunorum based on multilocus sequence analysis. Suppression of the growth of B. cinerea isolates 111bb, 207a, 207cb, and 407cb occurred on berries treated with A. pullulans P01A006, Metschnikowia chrysoperlae P34A004 and P40A002, M. pulcherrima P01A016 and P01C004, Meyerozyma guilliermondii P34D003, and S. cerevisiae HNN11516. Inhibition of Botrytis isolates by the yeast strains was more common on berries than in vitro, suggesting the possibility that niche competition was a more likely biocontrol mechanism than antibiosis in planta. Metabolic profiling of yeast strains and B. cinerea isolates using Biolog YT plates revealed seven distinct metabolic groups. Furthermore, the yeast strains showed partial to complete tolerance to the commonly used fungicides fluopyram, triflumizole, metrafenone, pyraclostrobin, and boscalid. Implications of these findings for field deployment of native Washington yeasts as biocontrol agents against B. cinerea are discussed. PMID- 29334477 TI - Improvement of endothelial function by pitavastatin: a meta-analysis. AB - OBJECTIVE: Dyslipidemia is commonly associated with endothelial dysfunction and increased cardiovascular risk. Pitavastatin has been shown to reduce total and low-density lipoprotein cholesterol, to increase high-density lipoprotein (HDL) cholesterol and improve HDL function. Furthermore, several trials explored its effects on flow-mediated dilation (FMD), as an index of endothelial function. The authors evaluated the effect of pitavastatin therapy on FMD. METHODS: The authors performed a systematic review and meta-analysis of all clinical trials exploring the impact of pitavastatin on FMD. The search included PubMed-Medline, Scopus, ISI Web of Knowledge and Google Scholar databases. Quantitative data synthesis was performed using a random-effects model, with weighted mean difference (WMD) and 95% confidence interval (CI) as summary statistics. RESULTS: Six eligible studies comprising 7 treatment arms were selected for this meta-analysis. Overall, WMD was significant for the effect of pitavastatin on FMD (2.45%, 95% CI: 1.31, 3.60, p < 0.001) and the effect size was robust in the leave-one-out sensitivity analysis. CONCLUSION: This meta-analysis of all available clinical trials revealed a significant increase of FMD induced by pitavastatin. PMID- 29334479 TI - Correction: Mobile App-Based Interventions to Support Diabetes Self-Management: A Systematic Review of Randomized Controlled Trials to Identify Functions Associated with Glycemic Efficacy. PMID- 29334478 TI - Authorship Correction: Sampling Key Populations for HIV Surveillance: Results From Eight Cross-Sectional Studies Using Respondent-Driven Sampling and Venue Based Snowball Sampling. AB - [This corrects the article DOI: 10.2196/publichealth.8116.]. PMID- 29334481 TI - Flexible and freestanding supercapacitor based on nanostructured poly(m aminophenol)/carbon nanofiber hybrid mats with high energy and power densities. AB - Nanostructured poly(m-aminophenol) (PmAP) coated freestanding carbon nanofiber (CNF) mats were fabricated through simple in situ rapid-mixing polymerization of m-aminophenol in the presence of a CNF mat for flexible solid-state supercapacitors. The surface compositions, morphology and pore structure of the hybrid mats were characterized by using various techniques, e.g., FTIR, Raman, XRD, FE-SEM, TEM, and N2 absorption. The results show that the PmAP nanoparticles were homogeneously deposited on CNF surfaces and formed a thin flexible hybrid mat, which were directly used to made electrodes for electrochemical analysis without using any binders or conductive additives. The electrochemical performances of the hybrid mats were easily tailored by varying the PmAP loading on a hybrid electrode. The PmAP/CNF-10 hybrid electrode with a relatively low PmAP loading (> 42 wt%) showed a high specific capacitance of 325.8 F g-1 and a volumetric capacitance of 273.6 F cm-3 at a current density of 0.5 A g-1, together with a specific capacitance retention of 196.2 F g-1 at 20 A g-1. The PmAP/CNF-10 hybrid electrode showed good cycling stability with 88.2% capacitance retention after 5000 cycles. A maximum energy density of 45.2 Wh kg-1 and power density of 20.4 kW kg-1 were achieved for the PmAP/CNF-10 hybrid electrode. This facile and cost-effective synthesis of a flexible binder-free PmAP/CNF hybrid mat with excellent capacitive performances encourages its possible commercial exploitation. PMID- 29334480 TI - Strategies for enhancing medical student resilience: student and faculty member perspectives. AB - Objectives: To improve programs aimed to enhance medical student resiliency, we examined both medical student and faculty advisor perspectives on resiliency building in an Asian medical school. Methods: In two separate focus groups, a convenience sample of 8 MD-PhD students and 8 faculty advisors were asked to identify strategies for enhancing resilience. Using thematic analysis, two researchers independently examined discussion transcripts and field notes and determined themes through a consensus process. They then compared the themes to discern similarities and differences between these groups. Results: Themes from the student suggestions for increasing resilience included "Perspective changes with time and experience", "Defining effective advisors," and "Individual paths to resiliency". Faculty-identified themes were "Structured activities to change student perspectives," "Structured teaching of coping strategies", and "Institution-wide social support". Students described themselves as individuals building their own resilience path and preferred advisors who were not also evaluators. Faculty, however, suggested systematic, structural ways to increase resilience. Conclusions: Students and advisors identified some common, and many distinct strategies for enhancing medical student resilience. Student/advisor discrepancies may exemplify a cultural shift in Singapore's medical education climate, where students value increased individualism and autonomy in their education. As medical schools create interventions to enhance resilience and combat potential student burnout, they should consider individually-tailored as well as system-wide programs to best meet the needs of their students and faculty. PMID- 29334482 TI - Carbon nanotubes within polymer matrix can synergistically enhance mechanical energy dissipation. AB - Safe operation and health of structures relies on their ability to effectively dissipate undesired vibrations, which could otherwise significantly reduce the life-time of a structure due to fatigue loads or large deformations. To address this issue, nanoscale fillers, such as carbon nanotubes (CNTs), have been utilized to dissipate mechanical energy in polymer-based nanocomposites through filler-matrix interfacial friction by benefitting from their large interface area with the matrix. In this manuscript, for the first time, we experimentally investigate the effect of CNT alignment with respect to reach other and their orientation with respect to the loading direction on vibrational damping in nanocomposites. The matrix was polystyrene (PS). A new technique was developed to fabricate PS-CNT nanocomposites which allows for controlling the angle of CNTs with respect to the far-field loading direction (misalignment angle). Samples were subjected to dynamic mechanical analysis, and the damping of the samples were measured as the ratio of the loss to storage moduli versus CNT misalignment angle. Our results defied a notion that randomly oriented CNT nanocomposites can be approximated as a combination of matrix-CNT representative volume elements with randomly aligned CNTs. Instead, our results points to major contributions of stress concentration induced by each CNT in the matrix in proximity of other CNTs on vibrational damping. The stress fields around CNTs in PS-CNT nanocomposites were studied via finite element analysis. Our findings provide significant new insights not only on vibrational damping nanocomposites, but also on their failure modes and toughness, in relation to interface phenomena. PMID- 29334483 TI - Latanoprost-induced Skin Hypopigmentation. PMID- 29334484 TI - In Reply: Is the Optic Nerve Head Structure Impacted by a Diagnostic Lumbar Puncture in Humans? PMID- 29334485 TI - In Reply: Latanoprost-induced Skin Hypopigmentation. PMID- 29334486 TI - Is the Optic Nerve Head Structure Impacted by a Diagnostic Lumbar Puncture in Humans? PMID- 29334487 TI - A Novel Hinged Scleral Patch Graft for the Repair of Overfiltration and Bleb Leaks. AB - INTRODUCTION: The repair of the scleral flap is often needed in cases of severe hypotony or bleb leaks with overfiltration. We present a simple novel technique to restore the hinged flap using a scleral patch graft. MATERIALS AND METHODS: We present 4 eyes of 4 patients who presented with hypotony [intraocular pressure(IOP) <6 mm Hg] from overfiltration secondary to loose scleral flap (2 eyes) and bleb leak (2 eyes). A scleral patch from a human donor, preserved in 95% ethanol, was cut in a trapezoidal shape and placed over the area of filtration after a conjunctival peritomy. The scleral graft was secured anteriorly with a single double-armed 9-0 nylon suture in a double-mattress manner so as to create a hinged flap. Permanent or releasable sutures were placed posteriorly to control aqueous outflow. RESULTS: All 4 patients had complete resolution of hypotony and bleb leaks with increase in their IOP to early teens. All maintained aqueous flow posteriorly with preservation of bleb function. CONCLUSION: Reestablishing the original anatomy of the hinged scleral flap can maintain bleb function without risk of overfiltration or loss of IOP control. This can be achieved through a simple repair using a scleral patch graft. PMID- 29334488 TI - Severe Intraocular Pressure Elevation After Intracameral Healon 5 Viscoelastic Support for Postoperative Hypotony After XEN Gel Stent Insertion. AB - PURPOSE: The purpose of this article was to describe (i) a novel case of severe intraocular pressure (IOP) elevation due to intracameral Healon 5 for management of early postoperative (post-op) hypotony following XEN Gel Stent insertion and (ii) the management of this complication. MATERIALS AND METHODS: A case report. RESULTS: A 52-year-old man, with primary open-angle glaucoma and suboptimal left IOP control on maximally tolerated medical therapy, was managed with XEN Gel Stent insertion at another tertiary eye unit. Post-op, the IOP was 2 mm Hg with a shallow anterior chamber (AC) and choroidal effusions. Intracameral injections of Provisc on post-op days 1 and 3 failed to reverse hypotony. At 1 week post-op, persistent clinically significant hypotony was managed with Healon 5 injection into the AC. Twelve hours later, the patient experienced significant pain and reduced vision and presented to a different tertiary eye unit, where left visual acuity was hand movements, IOP was 70 mm Hg with a deep AC (complete ophthalmic viscosurgical device fill with Healon 5) and a flat drainage bleb with no external drainage. Emergency AC washout of the Healon 5 was performed with resolution of symptoms, visual acuity, and IOP control. CONCLUSIONS: We caution against the use of intracameral Healon 5 in the management of post-op hypotony following XEN Gel Stent insertion, given the potential risk for extreme IOP elevation and sight loss. PMID- 29334489 TI - Association between arterial stiffness and wave reflection with subsequent development of placental-mediated diseases during pregnancy: findings of a systematic review and meta-analysis. AB - OBJECTIVE: We present a comprehensive systematic review of published literature to examine, whether arterial stiffness and wave reflection measurements during pregnancy differed between healthy patients and patients with placental-mediated diseases including preeclampsia (PET), small for gestational age (SGA), fetal death, and placental abruption, and a quantitative assessment of the findings using the meta-analysis approach. METHODS: We searched Medline, Embase, and The Cochrane Library for studies of arterial stiffness in pregnancy, analyzed pregnancy outcomes and conducted the meta-analysis of data evaluated by trimesters of pregnancy. Hemodynamic parameters evaluated included: pulse wave velocity (PWV), augmentation index (AIx), and augmentation index-75 (AIx-75). RESULTS: We screened 2806 citations, reviewed 36 studies and included nine (n = 15 923) studies for further quantitative assessment. Compared with healthy pregnancy, measures of arterial stiffness and wave reflection were consistently increased among pregnant women who subsequently developed PET during all trimesters. In the first trimester, mean AIx-75 (%) in the PET group was significantly higher with estimated standardized mean difference (SMD) of 0.90 [95% confidence intervals (95% CI) 0.07-1.73; P = 0.034]. In the second trimester, the PET group had significantly higher PWV (m/s) with estimated SMD of 1.26 (95% CI 0.22-2.30; P = 0.018). Concerning the SGA group, mean AIx (%) was greater during the second trimester only: 65.5 (SD 15.6) vs. 57.0 (11.2), P < 0.01. CONCLUSION: There is significant increase in arterial stiffness and wave reflection parameters among pregnant women who subsequently developed PET and SGA fetuses. Larger studies with consistent methodological designs are required to evaluate the role and usefulness of arterial stiffness and wave reflection measurements as a screening tool for placental-mediated diseases during pregnancy. PMID- 29334490 TI - Differential impact of local and regional aortic stiffness on left ventricular remodeling: a cardiovascular magnetic resonance study. AB - BACKGROUND: Left ventricular (LV) remodeling and aortic stiffness have independent predictive value for all causes and cardiovascular mortality. Because elastic properties of the arterial wall vary along the aortic pathway, we hypothesized that local and regional aortic stiffness could differently impact on LV remodeling. METHODS AND RESULTS: Regional aortic stiffness was determined from carotid-femoral pulse wave velocity (cfPWV) measured by aplanation tonometry. Aortic arch pulse wave velocity was measured by phase contrast cardiovascular magnetic resonance (CMR). Local stiffness was calculated in the ascending aorta pulse wave velocity (aaPWV) and descending aorta pulse wave velocity using central pulse pressure measurement, cine CMR acquisition, and surface change estimation. CMR LV remodeling was expressed as LV mass to end-diastolic volume ratio.We evaluated 146 study participants (41 +/- 15 years) free of overt cardiovascular disease. In stepwise multivariate regression analysis, cfPWV and aaPWV were significantly and independently correlated to mass to end-diastolic volume ratio (partial R = 0.07 and R = 0.10, respectively, all P < 0.005) after adjustment for age, sex, BMI, brachial mean blood pressure, and central pulse pressure. Descending aorta pulse wave velocity was correlated with mass to end diastolic volume ratio to a lower extent (R = 0.04, P = 0.0115) and aortic arch pulse wave velocity was not independently associated with mass to end-diastolic volume ratio. CfPWV and aaPWV were both independently associated with mass to end diastolic volume ratio, explaining 5 and 8% of mass to end-diastolic volume ratio variance, respectively. CONCLUSION: In study participants free of overt cardiovascular disease, stiffness of the ascending aorta representing the local proximal aortic function face to the LV and of the downstream aortic pathway assessed by cfPWV reflecting more advanced alterations of material properties involving the entire aorta, are independent determinants of LV remodeling after adjustment to age, BMI, mean blood pressure, and sex. PMID- 29334491 TI - A randomized titrate-to-target study comparing fixed-dose combinations of azilsartan medoxomil and chlorthalidone with olmesartan and hydrochlorothiazide in stage-2 systolic hypertension. AB - BACKGROUND: Azilsartan medoxomil (AZL-M), an angiotensin II receptor blocker, has been developed in fixed-dose combinations (FDCs) with chlorthalidone (CTD). OBJECTIVE/METHODS: We compared FDCs of AZL-M/CTD 20/12.5 mg once daily titrated to 40/25 mg if needed or AZL-M/CTD 40/12.5 mg once daily titrated to 80/25 mg if needed with an olmesartan medoxomil (OLM)-hydrochlorothiazide (HCTZ) 20/12.5 mg FDC once daily titrated to 40/25 mg if needed in a randomized, double-blind, 8 week study of 1085 participants with clinic SBP 160-190 mmHg and DBP 119 mmHg or less. Titration to higher doses occurred at week 4 if BP was at least 140/90 mmHg (>=130/80 mmHg if diabetes or chronic kidney disease). The primary endpoint was change from baseline in clinic SBP; 24-h ambulatory BP monitoring was also measured. RESULTS: Greater reductions in clinic SBP from a baseline of 165 mmHg were observed (P < 0.001) in both AZL-M/CTD arms (-37.6 and -38.2 mmHg) versus OLM/HCTZ (-31.5 mmHg), despite greater dose titration in the OLM/HCTZ group. At 8 weeks, both AZL-M/CTD FDCs reduced 24-h SBP more than OLM/HCTZ (-26.4 and -27.9 versus -20.7 mmHg; both P < 0.001), and higher proportions in both AZL-M/CTD groups achieved target BP compared with the OLM/HCTZ group (69.4 and 68.9 versus 54.7%, both P < 0.001). Adverse events leading to drug discontinuation occurred in 6.2, 9.5, and 3.1% with the AZL-M/CTD lower and higher doses, and OLM/HCTZ, respectively. CONCLUSION: This large, titration-to-target BP study demonstrated AZL-M/CTD FDCs to have superior antihypertensive efficacy compared with the maximum approved dose of OLM/HCTZ. PMID- 29334493 TI - Understanding Severe Maternal Morbidity: Hospital-based Review. AB - Cases of severe maternal morbidity (SMM) share similarities to maternal deaths, including increasing in frequency and having similar rates of preventability. This article will review steps to organizing and implementing standard reviews of all cases of SMM. These steps include create multidisciplinary SMM review committee; identify potential SMM cases and confirm true SMM; identify the morbidity; abstract and summarize data; present case to review committee for discussion; determine events leading to morbidity; determine opportunities to improve outcome; assess provider, system and patient factors in cases with opportunities to improve outcome; make recommendations; and effect change and evaluate improvement. PMID- 29334492 TI - Anti-IL-10-mediated Enhancement of Antitumor Efficacy of a Dendritic Cell targeting MIP3alpha-gp100 Vaccine in the B16F10 Mouse Melanoma Model Is Dependent on Type I Interferons. AB - The chemokine MIP3alpha (CCL20) binds to CCR6 on immature dendritic cells. Vaccines fusing MIP3alpha to gp100 have been shown to be effective in therapeutically reducing melanoma tumor burden and prolonging survival in a mouse model. Other studies have provided evidence that interleukin-10 (IL-10) neutralizing antibodies (alphaIL-10) enhance immunologic melanoma therapies by modulating the tolerogenic tumor microenvironment. In the current study, we have utilized the B16F10 syngeneic mouse melanoma model to demonstrate for the first time that a therapy neutralizing IL-10 enhances the antitumor efficacy of a MIP3alpha-gp100 DNA vaccine, leading to significantly smaller tumors, slower growing tumors, and overall increases in mouse survival. The additive effects of alphaIL-10 were not shown to be correlated to vaccine-specific tumor-infiltrating lymphocytes (TILs), total TILs, or regulatory T cells. However, we discovered an upregulation of IFNalpha-4 transcripts in tumors and a correlation of increased plasmacytoid dendritic cell numbers with reduced tumor burden in alphaIL-10 treated mice. Interferon alpha receptor knockout (IFNalphaR1) mice received no benefit from alphaIL-10 treatment, demonstrating that the additional therapeutic value of alphaIL-10 is primarily mediated by type I IFNs. Efficient targeting of antigen to immature dendritic cells with a chemokine-fusion vaccine provides an effective anticancer therapeutic. Combining this approach with an IL-10 neutralizing antibody therapy enhances the antitumor efficacy of the therapy in a manner dependent upon the activity of type I IFNs. This combination of a vaccine and immunomodulatory agent provides direction for future optimization of a novel cancer vaccine therapy. PMID- 29334494 TI - State-based Review of Maternal Deaths: The Ohio Experience. AB - Ohio established a Pregnancy-Associated Mortality Review system in 2010 to ensure that all maternal deaths are identified and preventive actions developed. The need for detailed and reliable information to supplement vital statistics data has led to the development of state-based and urban-based maternal death reviews. Although processes vary from state to state, in general, an expert panel is convened to review individual cases and make recommendations for systems change. This article describes the development and operation of Ohio's state-based maternal death review including interventions developed and actions taken based on review data. PMID- 29334495 TI - The ethics of interventional procedures for patients too ill for surgery. AB - PURPOSE OF REVIEW: Minimally invasive interventional procedures are increasingly popular options for patients who are high-risk candidates for open surgical procedures. It is unclear how to proceed in the rare circumstance of a complication during an interventional procedure, where addressing the complication would require exposing the patient to the full risk that was being avoided with the minimally invasive technique. This review provides recommendations on how to approach this paradoxical scenario. RECENT FINDINGS: Risk stratification, communication frameworks, and advanced care planning can facilitate shared decision-making between physicians and patients. Risk stratification may include mortality predictive models, disability and frailty scores, and patient-centered outcome studies. In the event of procedural complication or failure, aggressive surgical treatment or limited repair should be guided by patient preferences to best ensure value concordant care. SUMMARY: Interventional procedures, and emergent open surgery, should be offered as long as patients are fully informed about the benefits and risks, including the implications of potential life-sustaining treatments, and whether their respective goals of treatment are consistent with the intervention. Implementing this framework will require a cultural shift in physician attitudes to recognize that in some cases, nonintervention or less aggressive treatment may be a reasonable alternative to surgical intervention. PMID- 29334496 TI - Oxygen in the critically ill: friend or foe? AB - PURPOSE OF REVIEW: To examine the potential harmful effects of hyperoxia and summarize the results of most recent clinical studies evaluating oxygen therapy in critically ill patients. RECENT FINDINGS: Excessive oxygen supplementation may have detrimental pulmonary and systemic effects because of enhanced oxidative stress and inflammation. Hyperoxia-induced lung injury includes altered surfactant protein composition, reduced mucociliary clearance and histological damage, resulting in atelectasis, reduced lung compliance and increased risk of infections. Hyperoxemia causes vasoconstriction, reduction in coronary blood flow and cardiac output and may alter microvascular perfusion. Observational studies showed a close relationship between hyperoxemia and increased mortality in several subsets of critically ill patients. In absence of hypoxemia, the routine use of oxygen therapy in patients with myocardial infarction, stroke, traumatic brain injury, cardiac arrest and sepsis, showed no benefit but rather it seems to be harmful. In patients admitted to intensive care unit, a conservative oxygen therapy aimed to maintain arterial oxygenation within physiological range has been proved to be well tolerated and may improve outcome. SUMMARY: Liberal O2 use and unnecessary hyperoxia may be detrimental in critically ill patients. The current evidence supports the use of a conservative strategy in O2 therapy to avoid patient exposure to unnecessary hyperoxemia. PMID- 29334497 TI - Deep vein thrombosis and venous thromboembolism in trauma. AB - PURPOSE OF REVIEW: Deep vein thrombosis (DVT) and pulmonary embolus are major causes of hospital-related morbidity and mortality, and are recognized as complications in patients with traumatic injury. Despite the significant morbidity and mortality associated with DVTs, prophylaxis and treatment are still not well understood and remain the subject of research and debate. RECENT FINDINGS: Elements of the patient's history and physical examination, along with thromboelastography, can be used to predict patients who are at greatest risk of DVT and venous thromboembolism (VTE). Novel assays and biomarkers hold promise for more accurate evaluation of coagulation status. Patients with traumatic injury are routinely treated with either mechanical or pharmacological treatments to prevent DVT, and a growing body of evidence suggests that DVT prophylaxis should be initiated as early as possible in a patient's hospital course. SUMMARY: In trauma patients with traumatic injury, early identification and targeted VTE prophylaxis in trauma patients may prevent this life-threatening complication. PMID- 29334498 TI - Evidence-based Interpretation of Amyloid-beta PET Results: A Clinician's Tool. AB - BACKGROUND: Amyloid-beta positron emission tomography (PET) allows for in vivo detection of fibrillar amyloid plaques, a pathologic hallmark of Alzheimer's disease (AD). However, amyloid-beta PET interpretation is limited by the imperfect correlation between PET and autopsy, and the fact that it is positive in about 20% to 30% of cognitively normal individuals and non-AD dementias, especially when older or carrying the epsilon4 allele of apolipoprotein E (ApoE4). When facing a positive amyloid PET, clinicians have to evaluate the probability of a pathologic false positive as well as the probability of amyloid positivity being age-related, comorbid to a primary non-AD dementia (clinicopathologic false positive). These probabilities can be calculated to reach an evidence-based interpretation of amyloid-beta. As literature review and calculations cannot be easily performed in the day-to-day clinic, we propose a clinician friendly, evidence-based Bayesian approach to the interpretation of amyloid-beta PET results in the differential diagnosis of patients with cognitive impairment. METHODS: We defined AD as a clinicopathologic entity in which amyloid beta is the primary cause of cognitive impairment. We systematically reviewed the literature to estimate the sensitivity and specificity of amyloid-beta PET against neuropathologic examination. We inferred rates of clinicopathologic false positivity (non-AD dementia with comorbid amyloid) based on age-dependent and ApoE-dependent prevalence of amyloid positivity in normal individuals and AD patients provided in large meta-analyses published by the Amyloid Biomarker Study Group. We calculated positive predictive value (PPV) and negative predictive value (NPV) of amyloid-beta PET, which are presented in a clinician-friendly table. RESULTS: PPV of PET is highest in young ApoE4- patients with high pre-PET probability of AD. In older ApoE4+ patients with low pre-PET probability of AD, positive amyloid-beta PET scans must be interpreted with caution. A negative amyloid-beta PET makes a diagnosis of AD unlikely except in old patients with high pre-PET probability of AD. CONCLUSION: This evidence-based approach might provide guidance to clinicians and nuclear medicine physicians to interpret amyloid-beta PET results for early and differential diagnosis of patients with progressive cognitive impairment. PMID- 29334499 TI - Cognitive Function and its Risk Factors Among Older US Adults Living at Home. AB - BACKGROUND: The Montreal Cognitive Assessment (MoCA) has not been administered to a representative national sample, precluding comparison of patient scores to the general population and for risk factor identification. METHODS: A validated survey-based adaptation of the MoCA (MoCA-SA) was administered to a probability sample of home-dwelling US adults aged 62 to 90, using the National Social Life, Health, and Aging Project (n=3129), yielding estimates of prevalence in the United States. The association between MoCA-SA scores and sociodemographic and health-related risk factors were determined. RESULTS: MoCA-SA scores decreased with age, and there were substantial differences among sex, education, and race/ethnicity groups. Poor physical health, functional status, and depression were also associated with lower cognitive performance; current health behaviors were not. Using the recommended MoCA cut-point score for Mild Cognitive Impairment (MoCA score <26; MoCA-SA score <17), 72% (95% confidence interval, 69% to 74%) of older US adults would be classified as having some degree of cognitive impairment. CONCLUSIONS: Our results provide an important national estimate for interpreting MoCA scores from individual patients, and establish wide variability in cognition among older home-dwelling US adults. Care should be taken in applying previously-established MoCA cut-points to the general population, especially when evaluating individuals from educationally and ethnically diverse groups. PMID- 29334500 TI - Overexpression of u-Opioid Receptors in Peripheral Afferents, but Not in Combination with Enkephalin, Decreases Neuropathic Pain Behavior and Enhances Opioid Analgesia in Mouse. AB - BACKGROUND: The current study used recombinant herpes simplex virus type I to increase expression of u-opiate receptors and the opioid ligand preproenkephalin in peripheral nerve fibers in a mouse model of neuropathic pain. It was predicted that viral vector delivery of a combination of genes encoding the u-opioid receptor and preproenkephalin would attenuate neuropathic pain and enhance opioid analgesia. The behavioral effects would be paralleled by changes in response properties of primary afferent neurons. METHODS: Recombinant herpes simplex virus type 1 containing cDNA sequences of the u-opioid receptor, human preproenkephalin, a combination, or Escherichia coli lacZ gene marker (as a control) was used to investigate the role of peripheral opioids in neuropathic pain behaviors. RESULTS: Inoculation with the u-opioid receptor viral vector (n = 13) reversed mechanical allodynia and thermal hyperalgesia and produced leftward shifts in loperamide (ED50 = 0.6 +/- 0.2 mg/kg vs. ED50 = 0.9 +/- 0.2 mg/kg for control group, n = 8, means +/- SD) and morphine dose-response curves (ED50 = 0.3 +/- 0.5 mg/kg vs. ED50 = 1.1 +/- 0.1 mg/kg for control group). In u-opioid receptor viral vector inoculated C-fibers, heat-evoked responses (n = 12) and ongoing spontaneous activity (n = 18) were decreased after morphine application. Inoculation with both u-opioid receptor and preproenkephalin viral vectors did not alter mechanical and thermal responses. CONCLUSIONS: Increasing primary afferent expression of opioid receptors can decrease neuropathic pain-associated behaviors and increase systemic opioid analgesia through inhibition of peripheral afferent fiber activity. PMID- 29334501 TI - Practice Guidelines for Moderate Procedural Sedation and Analgesia 2018: A Report by the American Society of Anesthesiologists Task Force on Moderate Procedural Sedation and Analgesia, the American Association of Oral and Maxillofacial Surgeons, American College of Radiology, American Dental Association, American Society of Dentist Anesthesiologists, and Society of Interventional Radiology. PMID- 29334502 TI - Risk of Hepatitis B Virus Reactivation Among Patients Treated With Ledipasvir Sofosbuvir for Hepatitis C Virus Infection. AB - BACKGROUND: Direct acting antiviral (DAA) agents are the standard of care for treatment of hepatitis C virus (HCV)-infected individuals. Hepatitis B virus (HBV) reactivation during HCV treatment has been reported, the incidence and clinical outcome remains unclear. The aim of our study is to examine the risk of HBV reactivation in actively infected or previously exposed patients during or after HCV treatment with DAAs. METHODS: Adults with chronic HCV infection previously exposed or actively infected with HBV and treated with DAAs between December 2015 to 2016 were included. Electronic medical records were reviewed for HCV treatment dates, HCV treatment response, DAA used, HBV status, and concurrent HBV treatment. Primary end-point was to determine the risk of HBV reactivation during or up to 3 months after DAA treatment. RESULTS: We identified 283 patients, and 100% of patients completed HCV treatment with ledipasvir sofosbuvir. 93% had HCV genotype-1 of whom 91% achieved sustained viral response at 12 weeks posttreatment (SVR-12). In total, 7% had HCV genotype-4 who achieved SVR-12 of 84%. Mean (+/-SD) age was 59.7 (+/-7) years, and 58% were male. A total of 45% of patients had hepatitis B core antibody (HBcAb) positive and hepatitis B surface antigen (HBsAg) negative. In total, 55% of patients had a positive HBsAg before HCV DAA treatment. No HBV reactivation was encountered in the (HBcAb) positive HBsAg-negative cohort nor in the (HBsAg) positive group with 95% confidence interval (0-0.023) and (0-0.019), respectively. CONCLUSION: In our study of patients with HCV and isolated hepatitis B core or HBsAg positivity, no HCV patients treated with DAA experienced HBV reactivation. PMID- 29334503 TI - Family history of autoimmune diseases and risk of gastric cancer: a national cohort study. AB - A personal history of autoimmune diseases is associated with an increased incidence of gastric cancer, but whether they share familial susceptibility is still unknown. The contribution of shared environmental or genetic factors toward the observed familial aggregation has not been determined. We used a few Swedish registers, including the Swedish Multigeneration Register and the Cancer Register, to examine the familial risk of gastric cancer among individuals with a family history of a set of autoimmune diseases. Standardized incidence ratios were used to calculate the relative risk. The overall risk of gastric cancer was 1.22 (95% confidence interval: 1.14-1.30) among individuals with a sibling affected with any of the 33 autoimmune diseases. For specific disease, siblings of individuals with Crohn's diseases, diabetes type 1, Graves'/hyperthyroidism, myasthenia gravis, psoriasis, rheumatoid arthritis, sarcoidosis, and uncreative colitis showed an association with an increased incidence of gastric cancer, with a standardized incidence ratio ranging between 1.17 and 1.64. Familial aggregation was found only for corpus cancer. No association was observed between spouses. Gastric cancer, mainly corpus cancer, shares familial susceptibility with a few autoimmune diseases, suggesting that shared genetic polymorphisms may contribute toward both Helicobacter pylori infection and autoimmune diseases. PMID- 29334504 TI - Bradykinin receptors gene expression in white adipose tissue in nondiabetic patients with coronary artery disease. AB - OBJECTIVES: Adipose tissue plays a key role in cardiovascular physiology. Kinin receptors are important determinant of the effect of adiposity on endothelial function and cardiovascular function. We examined the gene expression levels of kinin receptors in the subcutaneous white adipose tissue (sWAT) of nondiabetic patients with and without coronary artery disease (CAD). PATIENTS AND METHODS: We evaluated 21 patients with CAD (13 men, age: 68+/-8 years) and 23 patients without CAD (15 men, age: 66+/-5 years) who underwent catheterization through the femoral route. sWAT biopsies were obtained from the site of vessel puncture before the procedure and analyzed for bradykinin receptor type 1 (BKR1) and 2 (BKR2) gene expression by real-time quantitative PCR. RESULTS: Although BKR2 expression levels did not differ significantly (413.12+/-532.41 in CAD patients vs. 378.33+/-534.45 in controls, P=NS), BKR1 expression in sWAT was significantly greater in patients with CAD (352.69+/-455.12 vs. 46.5+/-46.7, P<0.05). Notably, BKR1 gene expression levels showed a significant positive correlation with BMI (r=0.45, P<0.002) and total cholesterol levels (r=0.53, P<0.001), and a negative correlation with fasting blood glucose (r=-0.4, P=0.006). CONCLUSION: There is a divergence in BKR1 gene expression in sWAT between patients with and without CAD and is associated with metabolic parameters. More studies are needed to determine the pathophysiological role of BKRs in adipogenesis, fat expansion, and atheromatous disease. PMID- 29334505 TI - The association of chronic air pollutants with coronary artery spasm, vasospastic angina, and endothelial dysfunction. AB - BACKGROUND: We evaluated the effect of chronic exposure to air pollutants (APs) on coronary endothelial function and significant coronary artery spasm (CAS) as assessed by intracoronary acetylcholine (ACH) provocation test. PATIENTS AND METHODS: A total of 6430 patients with typical or atypical chest pain who underwent intracoronary ACH provocation test were enrolled. We obtained data on APs from the Korean National Institute of Environmental Research (http://www.nier.go.kr/). APs are largely divided into two types: particulate matter with aerodynamic diameter of less than or equal to 10 um in size (PM10) and gaseous pollutants such as nitrogen dioxide, sulfur dioxide, carbon monoxide, and ozone. The primary endpoint is the incidence of significant CAS and its associated parameters during ACH provocation test. RESULTS: The incidence of CAS was positively correlated with an exposure duration of PM10, whereas nitrogen dioxide, sulfur dioxide, carbon monoxide, and ozone were shown to be unrelated to CAS. During the ACH provocation test, as PM10 increased, the frequency of CAS was increased, and the incidence of transient ST-segment elevation was also increased. There was a trend toward higher incidence of spontaneous spasm as PM10 increased. The mean exposure level of PM10 was 51.3+/-25.4 ug/m. The CAS risk increased by 4% when the level of PM10 increased by 20 ug/m by an adjusted Cox regression analysis. CONCLUSION: CAS incidence is closely related to exposure to PMs but not to gaseous pollutants. Particularly, higher exposure concentrations and longer exposure duration of PM10 increased the risk of CAS. These important findings provide a plausible mechanism that links air pollution to vasospastic angina and provide new insights into environmental factors. PMID- 29334507 TI - What's hot in heart valve disease 2018? PMID- 29334506 TI - Targeted biopsy: benefits and limitations. AB - PURPOSE OF REVIEW: To review the current literature regarding the role of multiparametric MRI and fusion-guided biopsies in urologic practice. RECENT FINDINGS: Fusion biopsies consistently show an increase in the detection of clinically significant cancers and decrease in low-risk disease that may be more suitable for active surveillance. Although, when to incorporate multiparametric MRI into workup is not clearly agreed upon, studies have shown a clear benefit in both biopsy naive and those with prior negative biopsies in determining the appropriate treatment strategy. More recently, cost-analysis models have been published that show that upfront MRIs are more cost-effective when considering missed cancers and treatment courses. SUMMARY: With improved accuracy over systematic biopsies, fusion biopsies are a superior method for detection of the true grade of cancer for both biopsy naive and patients with prior negative biopsies, choosing appropriate candidates for active surveillance, and monitoring progression on active surveillance. PMID- 29334508 TI - Practical valvular issues in patients requiring ventricular assist devices. AB - PURPOSE OF REVIEW: As ventricular assist device (VAD) therapy in patients with advanced heart failure continues to grow, experience with concomitant valvular diseases present either before or after VAD implantation continues to accrue. In this review, we discuss recent data and current practice as it pertains to the subject of concomitant valvular disease in patients requiring VADs. RECENT FINDINGS: Persistent aortic valve closure has been identified as a potential contributor to aortic valve 'disuse atrophy' resulting in valve degeneration. Dilation of the aortic root may be predictive of future development of aortic insufficiency. Novel echocardiographic parameters to identify the severity of aortic insufficiency following VAD implantation may be useful for risk stratification. Concomitant repair of significant mitral regurgitation may confer benefit to pulmonary vascular resistance and right ventricular function; however, this remains controversial. Concomitant repair of significant tricuspid regurgitation has not demonstrated early postoperative benefit nor survival benefit. Atrial fibrillation has emerged as a risk factor that may predict accelerated progression of postoperative tricuspid regurgitation. SUMMARY: Management of aortic insufficiency, mitral regurgitation or tricuspid regurgitation in patients requiring VADs continues to be the source of controversy. As experience accrues with varying strategies to prevent or manage these valvular lesions, our understanding of the impact of these strategies continues to evolve. PMID- 29334509 TI - Comparison of Stress and Strain Distribution Around Splinted and Nonsplinted 6-mm Short Implants in Posterior Mandible: A Finite Element Analysis Study. AB - PURPOSE: This study was designed to compare the biomechanical performance of splinted and nonsplinted short implants, in the posterior mandible, using finite element analysis. MATERIALS AND METHODS: Three-dimensional models of short implants with 2 different diameters (4 * 6 mm or 5 * 6 mm) were scanned, and CATIA (R21) was used to simulate the model of an edentulous lower jaw. Experimental groups were designed as follows: (1) D4L6-splinted (three 4 * 6-mm splinted implants), (2) D4L6-nonsplinted, (3) D5L6-splinted, and (4) D5L6 nonsplinted. A 100 N load was applied, and stress and strain values in surrounding bone were analyzed in specific nodes using ANSYS software (16.1). RESULTS: The maximum stress values under axial load were found in D5L6-splinted model, and under oblique load, D5L6-nonsplinted model had the maximum stress values. Under axial load, D4L6-splinted model showed maximum strain values, but when oblique load was applied, D4L6-nonsplinted model had the maximum strain values. CONCLUSION: Splinting adjacent short implants may provide less bone strain and stress, especially at the presence of lateral forces. Increasing the implant diameter may be effective in strain reduction, but does not seem to reduce the bone stress, regardless of the direction of the load applied. PMID- 29334510 TI - Comparing peri-operative complications of paediatric and adult anaesthesia: A retrospective cohort study of 81 267 cases. AB - BACKGROUND: Comparisons of peri-operative complications associated with paediatric (<=16 years) and adult anaesthesia are poorly available, especially in which cardiac surgery, organ transplantation and neurosurgery are involved. OBJECTIVE: The aim of this study was to evaluate the nature and incidence of peri operative complications that might be due to anaesthesia and to identify independent risk factors for complications in children and adults, including those undergoing cardiac surgery, organ transplantation and neurosurgery. DESIGN: Retrospective cohort study. SETTING: The study was performed at the University Medical Centre Groningen in the 4 years between 1 January 2010 and the 31 December 2013. MAIN OUTCOME MEASURES: Complications and their severity were graded according to the standard complication score (20 items) of the Dutch Society of Anaesthesia. Univariate and multivariate regression analysis was used to identify independent risk factors for the reported complications. RESULTS: A total of 81 267 anaesthetic cases were included. In the paediatric cohort, there were 410 (2.9%) complications and 1675 (2.5%) in the adults. In both cohorts age, American Society of Anaesthesiologists classification and emergency treatment were independent risk factors for complications. With respect to age, infants less than 1 year were at the highest risk, whereas in the adult cohort, increased age was related to a greater number of complications. The incidences of the specific complications were different between both cohorts. Upper airway obstruction was more frequently observed in paediatric patients (26%), whereas in the adults, complications with the highest incidence concerned conversion of regional-to-general anaesthesia (25%) and hypotension (17%). CONCLUSION: Risk factors for all peri-operative complications were similar for paediatric and adult anaesthesia. However, the incidence of specific complications differed between both age categories. PMID- 29334511 TI - Evaluation of recombinant factor VIIa, tranexamic acid and desmopressin to reduce prasugrel-related bleeding: A randomised, placebo-controlled study in a rabbit model. AB - BACKGROUND: Prasugrel is a thienopyridine that inhibits platelet aggregation more rapidly and effectively than clopidogrel, with an increased bleeding risk. OBJECTIVE: The current study aimed to evaluate the efficacy of three nonspecific haemostatic drugs - recombinant activated factor VII (rFVIIa), tranexamic acid and desmopressin (DDAVP) - to limit blood loss after administration of prasugrel in a rabbit model of bleeding while also evaluating any prothrombotic effects. DESIGN: Randomised, placebo-controlled study. SETTING: Faculty of Medicine, University of Geneva, Switzerland, in 2013. ANIMALS: Anaesthetised and artificially ventilated rabbits (n=56). INTERVENTIONS: Animals were randomly allocated to one of five groups: control (placebo-placebo), prasugrel-placebo, rFVIIa (prasugrel-rFVIIa 150 MUg kg), tranexamic acid (prasugrel-tranexamic acid 20 mg kg) or DDAVP (prasugrel-DDAVP 1 MUg kg). Two hours after an oral prasugrel loading dose (4 mg kg), a stenosis and an injury were inflicted on the carotid artery to induce cyclic flow reductions (CFRs) due to thrombosis. Haemostatic drugs were administered during the ensuing observation period. MAIN OUTCOME MEASURES: Standardised hepatosplenic sections were performed to evaluate the primary endpoint of blood loss, monitored for 15 min. Ear-immersion bleeding time and incidence of CFRs were secondary endpoints. RESULTS: Prasugrel decreased ADP induced platelet aggregation (light transmission method) from 66 +/- 4% (mean +/- SD) to 41 +/- 7% (P < 0.001) and doubled blood loss: 10.7 g (10.1 to12.7) [median (interquartile range)] vs. 20.0 g (17.0 to 24.4), P = 0.003 in the control and prasugrel-placebo groups, respectively. rFVIIa, tranexamic acid and DDAVP reduced neither hepatosplenic blood loss [19.7 g (14.0 to 27.6), 25.2 g (22.6 to 28.7) and 22.9 g (16.8 to 28.8), respectively] nor bleeding time compared with placebo. Regarding safety, rVIIa induced three or more CFRs in 5/12 rabbits, vs. 0/12 in the prasugrel-placebo group (P = 0.037), whereas tranexamic acid and DDAVP did not increase them. CONCLUSION: The three studied haemostatic drugs rFVIIa, tranexamic acid and DDAVP failed to reduce prasugrel-related bleeding in this model. rFVIIa-treated rabbits were more prone to arterial thrombotic events. TRIAL REGISTRATION: NA. PMID- 29334513 TI - Opioid Use Disorders Attributed to Tramadol Among Egyptian University Students. AB - BACKGROUND: Tramadol use is an overwhelming problem in Egypt with tremendous medical and social consequences especially among youth. Use liability among Egyptian university students is underevaluated. This study aimed to estimate the prevalence and associated correlates of tramadol use among students from Zagazig University, Egypt. METHODS: A cross-sectional study included a total of 1135 undergraduate students, from 10 colleges in Zagazig University. Participants were randomly selected and assessed for tramadol use using The Drug Use Disorders Identification Test (DUDIT) and The Drug Use Disorders Identification Test Extended (DUDIT-E). RESULTS: The prevalence of tramadol use was 12.3% among university students, with higher prevalence in male (20.2%) than female students (2.4%). The average age at onset of tramadol use was 17.6 +/- 2.1. Only 15% of the students with substance use were using tramadol alone whereas the rest (85%) were using at least 1 drug plus tramadol. One-fifth of these students started with tramadol as their first drug. Smoking, cannabis, and alcohol use predict tramadol use. About 60% of students who use tramadol had drug-related problems and 30% had dependence. Treatment readiness for tramadol use is negatively correlated with smoking and its duration. CONCLUSIONS: Tramadol use was common among university students, with higher prevalence among males. There is a considerable relationship between tramadol use, smoking, and use of other substances. Further population-based longitudinal studies need to investigate the causal relationship between tramadol use, smoking, and use of other substances. PMID- 29334512 TI - Association Between Alcohol Use and Angina Symptoms Among Outpatients From the Veterans Health Administration. AB - BACKGROUND: Alcohol use is associated with angina incidence, but associations between alcohol use and experience of angina among patients with coronary artery disease (CAD) have not been described. METHODS: Outpatients with CAD from 7 clinics in the Veterans Health Administration were surveyed; alcohol use was measured using the validated Alcohol Use Disorders Identification Test Consumption scores categorized into 6 groups: nondrinking, low-risk drinking, and mild, moderate, severe, and very severe unhealthy alcohol use. Three domains of self-reported angina symptoms (frequency, stability, and physical function) were measured with the Seattle Angina Questionnaire. Linear regression models evaluated associations between alcohol use groups and angina symptoms. Models were adjusted first for age and then additionally for smoking, comorbidities, and depression. RESULTS: Patients (n = 8303) had a mean age of 66 years. In age adjusted analyses, a U-shaped association was observed between alcohol use groups and all angina outcomes, with patients in nondrinking and severe unhealthy alcohol groups reporting the greatest angina symptoms and lowest functioning. After full adjustment, no clinically important and few statistically important differences were observed across alcohol use in angina stability or frequency. Patients in the nondrinking group had statistically greater functional limitation from angina than those in all groups of unhealthy alcohol use, though differences were small. Patients in all groups of unhealthy alcohol use did not differ significantly from those with low-risk drinking. CONCLUSIONS: Alcohol use was associated with some small statistically but no clinically important differences in angina symptoms among patients with CAD. This cross-sectional study does not support a protective effect of low-level drinking on self-reported angina. PMID- 29334514 TI - Monitoring Depression Rates in an Urban Community: Use of Electronic Health Records. AB - OBJECTIVES: Depression is the most common mental health disorder and mediates outcomes for many chronic diseases. Ability to accurately identify and monitor this condition, at the local level, is often limited to estimates from national surveys. This study sought to compare and validate electronic health record (EHR) based depression surveillance with multiple data sources for more granular demographic subgroup and subcounty measurements. DESIGN/SETTING: A survey compared data sources for the ability to provide subcounty (eg, census tract [CT]) depression prevalence estimates. Using 2011-2012 EHR data from 2 large health care providers, and American Community Survey data, depression rates were estimated by CT for Denver County, Colorado. Sociodemographic and geographic (residence) attributes were analyzed and described. Spatial analysis assessed for clusters of higher or lower depression prevalence. MAIN OUTCOME MEASURE(S): Depression prevalence estimates by CT. RESULTS: National and local survey-based depression prevalence estimates ranged from 7% to 17% but were limited to county level. Electronic health record data provided subcounty depression prevalence estimates by sociodemographic and geographic groups (CT range: 5%-20%). Overall depression prevalence was 13%; rates were higher for women (16% vs men 9%), whites (16%), and increased with age and homeless patients (18%). Areas of higher and lower EHR-based, depression prevalence were identified. CONCLUSIONS: Electronic health record-based depression prevalence varied by CT, gender, race/ethnicity, age, and living status. Electronic health record-based surveillance complements traditional methods with greater timeliness and granularity. Validation through subcounty-level qualitative or survey approaches should assess accuracy and address concerns about EHR selection bias. Public health agencies should consider the opportunity and evaluate EHR system data as a surveillance tool to estimate subcounty chronic disease prevalence. PMID- 29334515 TI - Facilitating Adoption of an Electronic Documentation System. AB - Best practice recommends the integration of clinical documentation into the hospital electronic health record to support safe, efficient, and timely patient care. A major barrier to successful adoption and optimization of computerized documentation systems is user satisfaction. The purpose of this descriptive, performance improvement initiative was to implement and evaluate user satisfaction with an electronic documentation system to facilitate successful adoption. The Clinical Procedure Flowsheets application was implemented in a geriatric extended care unit of a large healthcare system. Rogers' Diffusion of Innovation and Davis' Technology Acceptance Model were used to guide system adoption and improve user experience of the innovation. The Perceived Usefulness and Perceived Ease of Use questionnaire was distributed to 24 nursing staff working in the unit 9 weeks after implementation. Results indicated that respondents perceived the Clinical Procedure Flowsheets as easy to use and useful in accomplishing their documentation tasks. The overall mean satisfaction score of 72.17 (SD, 12.13) implied a strong level of user acceptance. The positive perception of the nursing staff in the geriatric extended care unit suggests a high probability of system use that can enhance the documentation of patient care. Further research is recommended to evaluate factors related to system adoption and user satisfaction. PMID- 29334516 TI - Computer-Based Training in Eating and Nutrition Facilitates Person-Centered Hospital Care: A Group Concept Mapping Study. AB - Studies have shown that computer-based training in eating and nutrition for hospital nursing staff increased the likelihood that patients at risk of undernutrition would receive nutritional interventions. This article seeks to provide understanding from the perspective of nursing staff of conceptually important areas for computer-based nutritional training, and their relative importance to nutritional care, following completion of the training. Group concept mapping, an integrated qualitative and quantitative methodology, was used to conceptualize important factors relating to the training experiences through four focus groups (n = 43), statement sorting (n = 38), and importance rating (n = 32), followed by multidimensional scaling and cluster analysis. Sorting of 38 statements yielded four clusters. These clusters (number of statements) were as follows: personal competence and development (10), practice close care development (10), patient safety (9), and awareness about the nutrition care process (9). First and second clusters represented "the learning organization," and third and fourth represented "quality improvement." These findings provide a conceptual basis for understanding the importance of training in eating and nutrition, which contributes to a learning organization and quality improvement, and can be linked to and facilitates person-centered nutritional care and patient safety. PMID- 29334517 TI - The effect of arthropathies on illness perceptions, coping strategies, outcomes, and their changes over time in patients with inflammatory bowel disease: a 12 month follow-up study. AB - OBJECTIVES: Arthropathies are a common extraintestinal manifestation (EIM) in inflammatory bowel disease (IBD). This study evaluated the differences in illness perceptions, coping strategies, and illness outcomes between patients with IBD with and without arthropathies at baseline and examined changes at 12 months in these variables in patients with arthropathies. METHODS: In total, 204 patients with (n=123) and without (n=81) arthropathies completed questionnaires at baseline and after 1 year, assessing illness perceptions, coping strategies, quality of life, and work and activity impairment. A linear regression analysis assessed the effect of arthropathies on these factors compared with patients without arthropathies. A mixed model analysis evaluated changes in illness perceptions, coping strategies, and outcomes in patients with arthropathies over time. RESULTS: Patients with arthropathies had more persistent thoughts on symptomatology and the variability of symptoms, held more negative views on the effects of illness, had heightened emotions that affected daily functioning, and had a poorer understanding of IBD than patients without arthropathies. Patients with arthropathies could more efficiently divert attention, felt more useful to others, and perceived a reduced physical and mental health and an increased activity impairment compared with patients without arthropathies. At follow-up, patients with arthropathies were more sceptical about the effectiveness of medical treatment but were better able to adapt their activities to their complaints compared with baseline. CONCLUSION: Patients with arthropathies in IBD adopt different illness perceptions and coping strategies and have different outcomes compared with patients without arthropathies, which is important to know when designing behavioral and physical interventions to improve functioning. PMID- 29334518 TI - Is ileocecal valve intubation essential for routine colonoscopic examination? AB - BACKGROUND: In this study, we aimed to assess the diagnostic yield of terminal ileum intubation during routine colonoscopy. MATERIALS AND METHODS: We routinely performed terminal ileum intubation in all patients who underwent colonoscopy at Dokuz Eylul University Hospital between February 2014 and June 2015. Two gastroenterology fellows performed colonoscopies in the Central Endoscopy Unit. Demographic data of patients, indications of colonoscopies, cecum and ileum intubation rate/time, and endoscopic and histopathologic findings of the terminal ileum were all assessed. RESULTS: A total of 1310 consecutive patients (726 female and 584 male, median age: 55.79+/-14.29 years) underwent colonoscopy during this study period. The colonoscopy was successfully completed in 1144 (87.3%) cases. The terminal ileum was successfully intubated in 1032 (90.2%) cases. The mean time taken to reach the ileum from the cecum was 63.08+/-64.16 s. Endoscopic abnormalities on the terminal ileum were present in 62 (6%) cases, and biopsies were taken from these patients. However, endoscopic abnormalities were found in 7 and 3.3% of patients who were symptomatic and asymptomatic, respectively. There were statistically significant differences between symptomatic and asymptomatic patients (P=0.02). Clinically significant histopathologic findings were observed in 22 cases, and 12 of the 22 cases were diagnosed as having Crohn's disease. CONCLUSION: Terminal ileum intubation is particularly indicated in symptomatic patients. In cases of chronic diarrhea, iron-deficiency anemia, abdominal pain, and suspected inflammatory bowel disease, terminal ileum intubation should be done. PMID- 29334519 TI - The Most Common Causes of Eye Pain at 2 Tertiary Ophthalmology and Neurology Clinics. AB - BACKGROUND: Eye pain is a common complaint, but no previous studies have determined the most common causes of this presenting symptom. Our objective was to determine the most common causes of eye pain in 2 ophthalmology and neurology departments at academic medical centers. METHODS: This was a retrospective cross sectional analysis and chart review at the departments of ophthalmology and neurology at the University Hospital Zurich (USZ), University of Zurich, Switzerland, and the University of Utah (UU), USA. Data were analyzed from January 2012 to December 2013. We included patients aged 18 years or older presenting with eye pain as a major complaint. RESULTS: Two thousand six hundred three patient charts met inclusion criteria; 742 were included from USZ and 1,861 were included from UU. Of these, 2,407 had been seen in an ophthalmology clinic and 196 had been seen in a neurology clinic. Inflammatory eye disease (conjunctivitis, blepharitis, keratitis, uveitis, dry eye, chalazion, and scleritis) was the underlying cause of eye pain in 1,801 (69.1%) of all patients analyzed. Although only 71 (3%) of 2,407 patients had migraine diagnosed in an ophthalmology clinic as the cause of eye pain, migraine was the predominant cause of eye pain in the neurology clinics (100/196; 51%). Other causes of eye pain in the neurology clinics included optic neuritis (44 patients), trigeminal neuralgia, and other cranial nerve disorders (8 patients). CONCLUSIONS: Eye pain may be associated with a number of different causes, some benign and others sight or life-threatening. Because patients with eye pain may present to either a neurology or an ophthalmology clinic and because the causes of eye pain may be primarily ophthalmic or neurologic, the diagnosis and management of these patients often requires collaboration and consultation between the 2 specialties. PMID- 29334520 TI - Invited Commentary: Evaluation of Horner Syndrome in the MRI Era. AB - : This Invited Commentary discusses the following article: BACKGROUND:: To identify the etiologies of adult Horner syndrome (HS) in the MRI era using a targeted evaluation approach and to assess the value and yield of targeted imaging. METHODS: A retrospective chart review was performed of 200 adult outpatients with HS, confirmed with cocaine eyedrop testing. Patients were divided into subgroups based on the presence or absence of symptoms and those who did or did not receive additional testing with hydroxyamphetamine drops. Imaging was obtained based on pharmacologic localization and/or clinical evaluation. The etiology of HS and the yield of imaging were determined in all subgroups. RESULTS: Imaging showed causative lesions in 24 of 179 (12.84%) imaged patients with HS, and 13 (69.0%) were determined "idiopathic." Of the patients who underwent testing with hydroxyamphetamine drops (132 patients), 86 had a postganglionic localization with an imaging yield of 8.1%, and 46 had preganglionic cause with an imaging yield of 21.7%. Fifty-three patients (26.5%) never noticed ptosis/anisocoria before examination, and the imaging yield in this subgroup was 2.8%. Eighteen of the 200 patients (9.0%) had serious pathology, including carotid artery dissection, brain, or neck mass, and 6 of these (31.6%) had acute symptoms and/or pain. CONCLUSION: HS is most often idiopathic with serious pathology being relatively infrequent. When determining etiology, the absence of symptoms is not predictive of the pathology. However, acute onset of symptoms and/or pain are possible indicators for serious pathology. Localizing the lesion using hydroxyamphetamine drops whenever obtainable and available is still an efficient way to target imaging evaluation. PMID- 29334521 TI - New Educational Model to Promote Breast Cancer-Preventive Behaviors (ASSISTS): Development and First Evaluation. AB - BACKGROUND: The prevalence of breast cancer in Iran has increased. An effective approach to decrease the burden of breast cancer is prevention. OBJECTIVE: The aim of this study was to develop and evaluate an educational model, called the ASSISTS, for promoting breast cancer-preventive behaviors in women. METHODS: A multiphase method was used to develop the model designed to promote breast cancer prevention behaviors. A conceptual model was generated based on a secondary analysis of qualitative data. Then, a structural equation model technique was used to test the relationships among the model constructs. RESULTS: The analysis revealed that 7 constructs could be extracted, namely, perceived social support, attitude, motivation, self-efficacy, information seeking, stress management, and self-care. Based on these constructs, a conceptual model was built and tested using structural equation modeling. The model fit was good, and the model confirmed significant relationships among the 7 constructs of breast cancer prevention. CONCLUSION: Findings revealed that self-care behavior and stress management are influenced directly by attitude, motivation, self-efficacy, information seeking, and social support. In addition, women seek more information when they are motivated, have more self-efficacy, have a more positive attitude toward breast cancer prevention, and experience more social support. IMPLICATION FOR PRACTICE: Cancer nurses can be at the forefront of breast cancer prevention. Because they can play a pivotal role in providing information, they can reduce women's stress and increase their self-care behavior. In addition, their social support can positively influence Iranian women's attitude, motivation, and self care behavior. Furthermore, implementing educational programs based on this model might encourage women to practice preventive behaviors. PMID- 29334522 TI - Themes in Literature Related to Incidence, Risk, and Prevention of Cancer in Solid-Organ Transplantation Recipients on Immunosuppressive Therapy. AB - BACKGROUND: Solid-organ transplants provide a second chance to thousands of critically ill patients with end-organ failure each year. Immunosuppressants are administered to patients to prevent graft rejection of a transplanted organ, such as a heart, kidney, or liver, while placing the recipient at greater risk for infection and cancer. OBJECTIVE: The literature provides evidence of various cancers that have been found to develop in patients' posttransplantation. The purpose of this comprehensive review is to investigate the incidence, risk, and prevention of cancer in solid-organ transplantation recipients on immunosuppressive therapy. METHODS: Google Scholar, Cumulative Index to Nursing and Allied Health Literature and Ovid databases were searched to identify research articles in peer-reviewed journals from 2011 to 2016. Variables under examination included cancer risk, cancer type, incidence, demographic characteristics, prevention, screening modalities, and education tools. RESULTS: Six articles met the inclusion criteria. Results indicate that malignancy is a prominent postoperative finding in at least 4% to 5% of solid-organ transplant recipients, with evidence of various cancer types. Risk factors include male sex, increased age, number of years posttransplant, fair skin, white race, and UV exposure. Screening intervals and educational tools have been found to increase awareness and target those at greater risk. CONCLUSION: Skin cancer and non Hodgkin lymphoma were the most commonly diagnosed cancers in transplant recipients. IMPLICATIONS FOR PRACTICE: Practitioners may find utility in screening tools, self-examination education for patients, and follow-up protocols to prevent further complications in this patient population. Early detection of cancer and those at risk may help decrease morbidity and mortality rates in organ recipients. PMID- 29334523 TI - Not a Straight Line-Patients' Experiences of Prostate Cancer and Their Journey Through the Healthcare System. AB - BACKGROUND: Cancer and its treatment can severely impact quality of life, giving rise to complex needs with respect to follow-up care. To support patient needs and increase efficiency of care with limited resources, the Swedish government has launched national reforms to redesign cancer care pathways. OBJECTIVE: The aim of this study was to explore how prostate cancer patients experience their journey through the healthcare system when their care is provided according to the standardized care pathway, as described in healthcare policy documents. METHODS: A qualitative, descriptive approach with individual interviews was used. A template of a standardized prostate cancer pathway, created together with healthcare professionals, was used during interviews. Fourteen interviews were conducted with prostate cancer patients all operated on at a midsized hospital in southeast Sweden between October 2015 and April 2016. The interviews were analyzed with qualitative content analysis and illustrated in a patient journey map. RESULTS: We identified an overall theme, "walking a tightrope," consisting of 4 categories: "waiting," "becoming familiar with a troublesome body," "adjusting to a different life," and "information challenges." CONCLUSIONS: The clinical implementation of the standardized care pathway is described as a straight path through care, but patients described their experiences as walking a tightrope. Lack of information, especially about cancer treatment and its adverse effects, was the most common experience. IMPLICATIONS FOR PRACTICE: Our findings indicate areas where further healthcare tools could improve patient experiences of cancer treatment. This could include offering individualized information and tools to increase patient empowerment, as well as patient/caregiver collaboration (co-care). PMID- 29334524 TI - Leveraging Linkage of Cohort Studies With Administrative Claims Data to Identify Individuals With Cancer. AB - BACKGROUND: In an effort to overcome quality and cost constraints inherent in population-based research, diverse data sources are increasingly being combined. In this paper, we describe the performance of a Medicare claims-based incident cancer identification algorithm in comparison with observational cohort data from the Nurses' Health Study (NHS). METHODS: NHS-Medicare linked participants' claims data were analyzed using 4 versions of a cancer identification algorithm across 3 cancer sites (breast, colorectal, and lung). The algorithms evaluated included an update of the original Setoguchi algorithm, and 3 other versions that differed in the data used for prevalent cancer exclusions. RESULTS: The algorithm that yielded the highest positive predictive value (PPV) (0.52-0.82) and kappa statistic (0.62-0.87) in identifying incident cancer cases utilized both Medicare claims and observational cohort data (NHS) to remove prevalent cases. The algorithm that only used NHS data to inform the removal of prevalent cancer cases performed nearly equivalently in statistical performance (PPV, 0.50-0.79; kappa, 0.61-0.85), whereas the version that used only claims to inform the removal of prevalent cancer cases performed substantially worse (PPV, 0.42-0.60; kappa, 0.54 0.70), in comparison with the dual data source-informed algorithm. CONCLUSIONS: Our findings suggest claims-based algorithms identify incident cancer with variable reliability when measured against an observational cohort study reference standard. Self-reported baseline information available in cohort studies is more effective in removing prevalent cancer cases than are claims data algorithms. Use of claims-based algorithms should be tailored to the research question at hand and the nature of available observational cohort data. PMID- 29334525 TI - Temporal Patterns of Exposure to Asbestos and Risk of Asbestosis: An Analysis of a Cohort of Asbestos Textile Workers. AB - OBJECTIVE: The aim of the study was to assess the risk of asbestosis death based on the temporal pattern of exposure to asbestos. METHODS: We followed up a cohort of asbestos textile workers, employed in 1946 to 1984, until November 2013. We measured the duration of the employment, the time since last employment (TSLE), the age, and the year of first employment. Hazard ratios (HR) were estimated through multivariable Cox regression models. RESULTS: We observed 51 asbestosis deaths among 1823 workers. The HR of asbestosis death increased with exposure duration (HR 2.4 for >=15 years compared with <5 years, P trend = 0.014) and declined with TSLE (HR 0.3 for >=25 compared with <5 years, P = 0.004). The risk of asbestosis mortality strongly declined for exposure starting after 1968. CONCLUSIONS: The risk of asbestosis death strongly declines in the decades after cessation of the exposure. PMID- 29334526 TI - Airborne Particulate Matter: Human Exposure and Health Effects. AB - OBJECTIVE: Exposure to airborne particulate matter (PM) is estimated to cause millions of premature deaths annually. This work conveys known routes of exposure to PM and resultant health effects. METHODS: A review of available literature. RESULTS: Estimates for daily PM exposure are provided. Known mechanisms by which insoluble particles are transported and removed from the body are discussed. Biological effects of PM, including immune response, cytotoxicity, and mutagenicity, are reported. Epidemiological studies that outline the systemic health effects of PM are presented. CONCLUSION: While the integrated, per capita, exposure of PM for a large fraction of the first-world may be less than 1 mg per day, links between several syndromes, including attention deficit hyperactivity disorder (ADHD), autism, loss of cognitive function, anxiety, asthma, chronic obstructive pulmonary disease (COPD), hypertension, stroke, and PM exposure have been suggested. This article reviews and summarizes such links reported in the literature. PMID- 29334527 TI - Transanal Minimally Invasive Anal Canal Polyp Resection. AB - Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are operative endoscopies that have been performed since a long time. Recently, an evolution of laparoscopy called transanal minimally invasive surgery began to be popularized, and it can be adopted in the face of difficult cases for EMR/ESD. In this video, a 36-year-old woman was submitted to transanal minimally invasive surgery resection, after unsuccessful ESD, for a 2-cm polyp located anteriorly in the anal canal, just beyond the pectineal line. Preoperative workup showed a uT1m versus T1sm N0 M0 lesion. The procedure was performed with a new reusable transanal platform and a monocurved coagulating hook and grasping forceps. The operative time was 90 minutes. No perioperative complications were registered, and the patient was discharged on postoperative day 1. The pathologic report showed a villotubular adenoma with high-grade dysplasia and distant-free margins. After 1 year, the patient was going well, without any recurrent disease. Transanal minimally invasive surgery resection is a good alternative to conventional endoscopic therapies, allowing a meticulous dissection under the magnified operative field's exposure, and a mucosal-submucosal flap closure under satisfactory surgeon's ergonomics. PMID- 29334529 TI - Midterm Outcome of Kidney Transplantation From Donors With Thin Basement Membrane Nephropathy. AB - BACKGROUND: Thin basement membrane nephropathy (TBMN) is the most common cause of persistent glomerular hematuria. Most individuals with TBMN show a benign course, although it can be difficult to distinguish it from early stages of progressive renal diseases. However, only limited studies address the prognosis of donors with TBMN and their recipients. METHODS: From 2007 to 2016, 11 recipients received kidney grafts from donors with TBMN, and their clinical data were analyzed retrospectively. Follow-up protocol kidney biopsies were given to the recipients at 10 days and 1 year after transplantation. The donors were also received a follow-up evaluation of their renal function and were interviewed via telephone survey. RESULTS: All donors were living, and their kidney grafts showed TBMN on pretransplantation biopsy. The recipients were followed for 57.4 +/- 28.6 months posttransplantation. Seven recipients showed acute rejection by a median of 9.7 months, and all recipients recovered their renal function after treatment. Although 1 kidney failed due to graft arterial occlusion, the functions of the others were preserved during the follow-up period. The donors were followed for 41.0 +/- 39.1 months and additionally contacted via telephone survey (in total, 56.8 +/- 32.0 months). All the donors maintained their renal function upon clinical follow-up without significant complications and denied any discomfort at the time of the telephone interview. CONCLUSIONS: Kidney transplant donors with TBMN and their recipients maintained their renal function through midterm follow up without significant complications. Therefore, kidney transplantation from donors with TBMN could be a safe option. PMID- 29334528 TI - Comparison of Laparoscopic and Open Pancreaticoduodenectomy for the Treatment of Nonpancreatic Periampullary Adenocarcinomas. AB - BACKGROUND: Laparoscopic pancreaticoduodenectomy (LPD), a surgical option for nonpancreatic periampullary adenocarcinoma (NPPA), is a complex procedure that has become increasing popular. However, there is no consensus as to whether this technique should be performed routinely. Our aim was to evaluate the outcomes of LPD compared with open pancreaticoduodenectomy (OPD). MATERIALS AND METHODS: From October 2010 to September 2015, 58 LPDs were performed to treat NPPA and were compared with 58 OPDs, which can theoretically be carried out by laparoscopic approach. Patients were also matched based on their demographic data and pathologic diagnosis. Demographic information, intraoperative and postoperative data, pathologic data, and follow-up evaluation data were collected at our center. RESULTS: All patients had a median follow-up of 34 months (range, 8 to 60 mo). Overall median survival during the study between the groups was not different (P=0.760). No significant differences between the 2 groups were found in terms of patient demographics, short-term complications, pathologic outcomes, or tumor-node-metastasis stage. With regard to operative time, the LPD group was slightly longer than the OPD group (P<0.001). There were significant differences between groups in the time to the first passage of flatus and the time to oral intake (P<0.001). However, no differences were seen in blood loss, length of intensive care unit stay, node positive, or R0 resection between the laparoscopic and open groups. CONCLUSIONS: This study found that LPD is a feasible, safe, and effective method for the treatment of NPPA compared with OPD and may be a preferred method for surgeons to choose. PMID- 29334530 TI - Antegrade Arterial and Portal Flushing Versus Portal Flushing Only for Right Lobe Live Donor Liver Transplantation-A Randomized Control Trial. AB - BACKGROUND: In live donor liver transplantation portal flush only of the graft is done on the bench. There are no data on antegrade arterial flush along with portal flush of the graft. METHODS: Consecutive patients undergoing elective right lobe live donor liver transplantation were block-randomized to receive either portal flush only or both portal and antegrade arterial flush. The primary objectives were safety, rate of early allograft dysfunction (EAD), and impact on vascular and biliary complications. RESULTS: After randomization, there were 40 patients in each group. Both groups had comparable preoperative, intraoperative, and donor variables. There were no adverse events related to arterial flushing. The portal and antegrade arterial flush group had significantly lower postoperative bilirubin on days 7, 14, and 21 (all P < 0.05), EAD (P = 0.005), intensive care unit/high dependency unit (P = 0.01), and hospital stay (P = 0.05). This group also had lower peak aspartate aminotransferase (P = 0.07), alanine aminotransferase (P = 0.06) and lower rates of sepsis (P = 0.08) trending toward statistical significance. Portal and antegrade arterial flush groups had lower ascitic fluid drainage and in-hospital mortality. Arterial and biliary complications were not statistically different in the 2 groups. Multivariate analysis of EAD showed portal with antegrade arterial flush was associated with lower rate (P = 0.007), whereas model for end-stage liver disease Na (P = 0.01) and donor age (P = 0.03) were associated with a higher rate of EAD. CONCLUSIONS: Portal with antegrade arterial flushing of right lobe live liver grafts is safe, significantly decreases postoperative cholestasis, EAD, intensive care unit/high dependency unit, and hospital stay and is associated with lower rates of sepsis, ascitic drainage and inhospital mortality in comparison to portal flush only. PMID- 29334531 TI - Dangerously numb: opioids, benzodiazepines, chronic pain, and posttraumatic stress disorder. PMID- 29334532 TI - Cost-effectiveness and Improved Parent and Provider Satisfaction With Outpatient Management of Pediatric Oncology Patients, With Low-risk Fever and Neutropenia. AB - On the basis of significant evidence for safety, the international pediatric fever and neutropenia committee recommends the identification and management of patients with "low-risk fever and neutropenia" (LRFN), outpatient with oral antibiotics, instead of traditional inpatient management. The aim of our study was to compare the cost-per-patient with these 2 strategies, and to evaluate parent and provider satisfaction with the outpatient management of LRFN. Between March 2016 and February 2017, 17 LRFN patients (median absolute neutrophil count, 90/MUL) were managed at a single institution, per new guidelines. Fifteen patients were discharged on presentation or at 24 to 48 hours postadmission on oral levofloxacin, and 2 were inadvertently admitted off protocol. The mean cost of management for the postimplementation cohort was compared with a historic preimplementation control group. Satisfaction surveys were completed by parents and health care providers of LRFN patients. The mean total cost of an LRFN episode was $12,500 per patient preimplementation and $6168 postimplementation, a decrease of $6332 (51%) per patient. All parents surveyed found outpatient follow up easy; most (12/14) parents and all (16/16) providers preferred outpatient management. Outpatient management of LRFN patients was less costly, and was preferred by a majority of parents and all health care providers, compared with traditional inpatient management. PMID- 29334533 TI - The Moonshot Initiative: Randomized, Controlled Trials, and Its Impact in Pediatric Oncology. PMID- 29334534 TI - Symptomatic Hyperammonemia With Erwinia chrysanthemi-derived Asparaginase in Pediatric Leukemia Patients. AB - Erwinia chrysanthemi-derived asparaginase is increasingly integral to acute lymphoblastic leukemia therapy. In our series, 16% of patients developed symptomatic hyperammonemia following Erwinia administration with symptoms including refractory nausea, vomiting, profound fatigue, malaise, and coma. This series of patients receiving Erwinia indicates higher than expected incidence of hyperammonemia, correlation between ammonia and asparaginase levels and therapeutic asparaginase activity levels despite dose reduction. The series provides evidence for investigation into which patients require intervention to prevent toxicity, which patients may have ammonia levels used as an asparaginase activity surrogate and which patients may achieve equivalent efficacy with abridged dosing. PMID- 29334535 TI - Simultaneous Presentation of Wilms' Tumor and Contralateral Ganglioneuroma in a Child: Case Report and Literature Review. AB - We demonstrate a 4-year-old girl who presented with progressive, asymmetrical, firm abdominal distention and was diagnosed with synchronous Wilms' tumor and left para-aortic ganglioneuroma (GN). Although synchronous tumors in the pediatric population are commonly associated with malignancy-predisposing syndromes, the patient in question was found to be otherwise healthy and had no clinical evidence nor family history of a syndrome. This case is the second one in the literature diagnosed with synchronous presentation of Wilms' tumor and GN in a previously healthy child. In addition, a GN foci presumed to be a previous metastasis of a neurogenic tumor that subsequently matured to GN was depicted within a left para-aortic lymph node. We aimed to emphasize an extremely rare synchronous occurrence of these embryonal tumors, increase the awareness of physicians, and discuss the radiologic differential diagnosis and management. PMID- 29334536 TI - Nationwide Trend Analysis of Pediatric Inpatients With Immune Thrombocytopenia in the United States. AB - BACKGROUND: Several studies have reported the epidemiology of immune thrombocytopenia (ITP) among children in the United States and other countries. However, recent trends in ITP among hospitalized children and hospital course remain unknown at a national level in the United States. METHOD: Hospital discharge records of patients with ITP aged 19 years and younger were obtained for the years 2003, 2006, 2009, and 2012 using the Kids' Inpatient Database. Data were weighted to estimate the annual hospitalization rates in the United States with trend analyses. Multivariable regression models were used to ascertain trends of health care utilizations, hospitalization costs, and length of stay. RESULTS: Total annual hospitalization rates due to ITP ranged from 6.13 per 100,000 children in 2003 to 6.22 per 100,000 children in 2012 (Ptrend=0.86). The lowest proportions of hospitalizations were observed in August. The proportions of inpatients treated with intravenous immunoglobulin increased from 18.5% in 2003 to 39.9% (Ptrend< 0.001), while those examined with bone marrow aspiration decreased from 7.8% in 2003 to 6.5% in 2012 (Ptrend=0.01). Total hospitalization costs and length of stay changed from $6147 and 3.78 days in 2003 to $9328 and 2.55 days in 2012. CONCLUSIONS: We provided insights of epidemiology of ITP and health care utilizations in the United States. Further studies, including cost effective analyses, will be required to justify the increasing trends in health care costs and intravenous immunoglobulin. PMID- 29334537 TI - Isolated Central Nervous System Chloroma as a Presenting Sign of Relapsed Pediatric Acute Lymphoblastic Leukemia. AB - Central nervous system (CNS) chloromas are an exceedingly rare presentation of CNS relapse in acute lymphoblastic leukemia (ALL). We report a relapsed ALL patient who presented with 2 separate chloromas and cerebrospinal fluid lymphoblastocytosis, and outline a treatment plan of systemic chemotherapy and CNS-directed radiation therapy. A review of the literature indicates that multiagent chemotherapy combined with CNS radiotherapy is effective, with hematopoietic stem cell transplantation used in half of reported cases. We conclude that intensive systemic multiagent chemotherapy with CNS-directed radiation therapy can be successfully used to treat relapsed pediatric ALL with CNS lymphoblastic chloroma. PMID- 29334538 TI - Sickle Cell Trait Testing Should Not Be a Player in NCAA Athletics: Examining the Media's Role in Disseminating Awareness and Information. PMID- 29334539 TI - Gelatin-Based Hemostatic Agents: Histopathologic Differences. AB - PURPOSE: To delineate the histopathologic appearance of gelatin-based hemostatic agents, Surgiflo, Gelfoam, and Floseal, which are used by ophthalmic plastic surgeons, and which may incidentally be found as foreign materials in histopathologic tissue samples. METHODS: Histopathologic analysis was performed with hematoxylin-eosin, periodic acid-Schiff, Masson trichrome, and elastin staining on tissue samples in which gelatin-based agents were found. To better characterize these materials, similar analyses were performed on in vitro samples of commonly used gelatin-based hemostatic agents. RESULTS: Surgiflo and Gelfoam are composed of small stellate pieces of gelatin with a smooth, homogeneous quality. In tissues, they are faintly positive with periodic acid-Schiff staining, amphophilic with Masson trichrome staining, and ink-black with elastin staining. Floseal has a distinctly different morphology of large rectangular sheets, yet almost identical in vitro staining properties. DISCUSSION: While the morphology of the gelatin-based hemostatic agents is consistent under various conditions, the staining properties of these materials differ based on whether they have been in contact with human tissue. CONCLUSIONS: Gelatin-derived hemostatic agents are best identified based on their morphologic characteristics. Elastin staining highlights these materials prominently within tissue samples and may be helpful in distinguishing them from other foreign materials. PMID- 29334540 TI - Predictors of Success Following Muller's Muscle-Conjunctival Resection. AB - PURPOSE: This study aims to describe Muller's muscle-conjunctival resection surgery in terms of outcomes and potential factors that may predict final positions. METHODS: This cross-sectional cohort study included patients undergoing Muller's muscle-conjunctival resection surgery for involutional ptosis over a 15-year period. Success was defined in 2 ways: 1) final marginal reflex distance 1 (MRD1) >=2.5 mm (MRD1 success) and 2) final difference in MRD1 <=1 mm between eyelids (symmetry success). Percentages of patients achieving both outcomes were calculated. Predictors of outcome were assessed using bivariate analysis and multivariate models. RESULTS: The final sample included 315 eyes in 192 patients. The mean age (standard deviation) was 67.9 (11.9) years, and 60.0% were female. MRD1 >=2.5 mm was achieved in 65.7% of the sample. Symmetry within 1 mm was achieved in 82.9% of the sample. Significant (p < 0.05) predictors of MRD1 success were female sex, concurrent lower eyelid blepharoplasty, and higher preoperative MRD1 in bivariate analysis; preoperative MRD1 and female sex in the multivariate model; and preoperative MRD1 in the a priori model. Significant (p < 0.05) predictors of symmetry success were female sex, previous lower eyelid blepharoplasty, concurrent lateral canthoplasty, preoperative symmetry, and older age in bivariate analysis; only female sex in the multivariate model. DISCUSSION: Muller's muscle-conjunctival resection is effective for elevating the eyelid in ptosis and may be more effective for achieving symmetry than absolute elevation over 2.5 mm. The results remain difficult to predict based clinical, surgical, or demographic factors. PMID- 29334541 TI - A Novel Technique for Measuring Eyelid Force. AB - PURPOSE: We present a novel technique to directly measure the eyelid upward force generation. This technique can be used during routine clinical examination using an inexpensive, portable force gauge. METHODS: This prospective case series was conducted January to June 2015 in an ophthalmology clinic affiliated with a tertiary care medical center. A convenience sample of 42 patients (40-90 years of age) without known eyelid pathology participated. The eyelid upward net force generated was measured directly using a handheld dynamometer noninvasively attached to the upper eyelid. Comparison of the eyelid-brow upward force generated with eyelid upward net force generated allowed us to assess the contribution of levator and frontalis muscles to the force generated during upgaze. Data were evaluated with relation to gender and age. RESULTS: Upper eyelid force generated was 53.3 g OD and 53.9 g OS; the generated force during frontalis muscle fixation was 38.4 g OD and 41.1 g OS. The levator and frontalis muscles showed a 3:1 ratio respectively in their contribution to the force generated during upgaze. Although no statistically significant differences were seen between eyes, gender, or within age groups, younger patients showed increased generating force which is attributed to the levator muscle. Interclass correlation coefficient showed virtually no correlation between clinical eyelid assessments and direct muscle force measurement. Reliability for repeated direct force measurements by the same physician was strong, with interclass correlation coefficient 0.951 to 0.969. No adverse events occurred. CONCLUSIONS: We describe a simple, reliable, inexpensive, new method for assessing upper eyelid upward force generation. Because the levator muscle serves as the primary contributor to eyelid elevation, this directly measurable eyelid assessment may help to increase understanding of its functional contribution and assessment when assessing eyelid pathologies. PMID- 29334542 TI - Medial Buttressing in Orbital Blowout Fractures. AB - PURPOSE: To study whether ethmoidectomy predisposes the orbit to medial wall fracture with lesser trauma. METHODS: An interventional cadaver study of 5 heads (10 orbits); the left or right orbit was randomized to undergo endoscopic complete ethmoidectomy with the fellow orbit as control. Fractures were induced with direct globe trauma, and heads underwent CT scanning. Energy to induce fracture, peak orbital pressure at time of fracture, fracture pattern, and volume of herniated tissue were measured and analyzed. RESULTS: Fractures were induced in both orbits of all cadavers. Experimental orbits after ethmoidectomy sustained orbital fracture at less energy required (2.14 +/- 0.66 vs. 3.10 +/- 0.19 J, mean difference: -0.96 +/- 0.33 J, p < 0.05). Similarly, peak orbital pressure was lower for ethmoidectomized orbits than for controls (11.8 +/- 8.42 vs. 28.4 +/- 13.2 mm Hg, mean difference: -16.5 +/- 6.9 mm Hg, p < 0.05). Orbits after ethmoidectomy were more likely to sustain medial wall involvement in fracture (100%) compared with controls (20%, p < 0.05) and pure medial wall fracture (80%) compared with controls (0%, p < 0.05). Overall volume of herniated orbital contents was not significantly different between groups (p = 0.25); volume of herniated tissue from the medial wall only was significantly greater in orbits after ethmoidectomy (mean difference: 1.01 +/- -0.39 cm, p < 0.05). CONCLUSION: Endoscopic ethmoidectomy in fresh cadavers reduces impact energy necessary to induce orbital fracture and increases the prevalence of medial wall involvement. Clinicians may wish to counsel patients undergoing endoscopic sinus surgery about these relative risks. PMID- 29334543 TI - Seminoma Metastatic to the Orbit. AB - PURPOSE: Seminomas are solid tumors in young men, but which rarely metastasize to the orbit. The authors review the known literature on seminoma metastatic to the orbit, and describe an additional case in a 33-year-old man. METHODS: A literature search was performed on the MEDLINE database using keywords "seminoma," "testicular germ-cell tumors," "testicular cancer," "testicular neoplasm," "orbital metastasis," and "germ-cell neoplasms." RESULTS: Malignant neoplasms of the testis account for only 1% of cancers in men. None-the-less, testicular germ cell seminoma is the most common solid tumor found in young men between the ages of 15 and 39. Only seven previous cases have been mentioned in the literature. The pathogenesis remains unclear although genetic, environmental, and maternal factors may play a role. The number of cases is too few to determine the best treatment options, but surgical excision and adjunctive orbital radiotherapy appear to be most appropriate. CONCLUSIONS: Although metastases to the orbit are rare, seminoma should be considered in the differential diagnosis of all young men with proptosis. PMID- 29334544 TI - Blood biomarkers of expressed and inducible HIV-1. AB - OBJECTIVE: To define the relationships between molecular measures of viral persistence in blood (i.e., plasma viremia, cellular HIV-1 DNA, and mRNA) and expressed or inducible virus from resting CD4 T cells of individuals on suppressive antiretroviral therapy. DESIGN: We compared molecular measurements of HIV-1 in plasma and in uncultured peripheral blood mononuclear cells (PBMCs) to the levels of virions produced by either unstimulated or phorbol myristate acetate and ionomycin (PMA/iono)-stimulated PBMC or resting CD4 T cells from 21 donors on suppressive antiretroviral therapy. RESULTS: We found that unstimulated virion release from cultured resting CD4 T cells was positively correlated with the levels of plasma viremia in vivo (Spearman rho = 0.67, P = 0.0017). We also found that levels of both cellular HIV-1 DNA and unspliced HIV-1 mRNA per million uncultured PBMC were positively correlated with the levels of inducible virion release from both PMA/iono-stimulated PBMC (total HIV-1 DNA: rho = 0.64, P = 0.0017; unspliced HIV-1 RNA: rho = 0.77, P < 0.001) and PMA/iono-stimulated resting CD4 T cells (total HIV-1 DNA: rho = 0.75, P < 0.001; unspliced HIV-1 RNA: rho = 0.75, P < 0.001). CONCLUSION: These results show for the first time that there are strong associations between in-vivo measures of HIV-1 persistence and ex-vivo measures of spontaneous and inducible virus production from cultured PBMC and resting CD4 T cells. Findings from this study provide insight into the biology of HIV-1 persistence and suggest methods to guide the evaluation of clinical strategies to reduce the size of the viral reservoir. PMID- 29334545 TI - Bacterial vaginosis modifies the association between hormonal contraception and HIV acquisition. AB - OBJECTIVE: To examine bacterial vaginosis as an effect modifier for the association between hormonal contraception and incident HIV infection. DESIGN: Serodiscordant couples enrolled in an open longitudinal cohort in Lusaka, Zambia from 1994 to 2012. This analysis was restricted to couples with an HIV-positive man enrolled between1994 and 2002 when a quarterly genital tract examination and HIV testing was performed. METHODS: Multivariate Cox models evaluated the association between contraceptive method and HIV-acquisition, stratified by time varying bacterial vaginosis status. RESULTS: Among 564 couples contributing 1137.2 couple-years of observation, bacterial vaginosis was detected at 15.5% of study visits. Twenty-two of 106 seroconversions occurred during intervals after bacterial vaginosis was detected [12 on no method/nonhormonal method (nonhormonal contraception), two on injectables, eight on oral contraceptive pills (OCPs)]. Unadjusted seroincidence rates per 100 couple-years for nonhormonal contraception, injectable, and OCP users, respectively, during intervals with bacterial vaginosis were 8.3, 20.8, and 31.0 and during intervals without bacterial vaginosis were 8.2, 9.7, and 12.3. In the bacterial vaginosis-positive model, there was a significant increase in incident HIV among those using injectables (adjusted hazard ratio, aHR 6.55, 95% CI 1.14-37.77) and OCPs (aHR 5.20, 95% CI 1.68-16.06) compared with nonhormonal contraception. Hormonal contraception did not increase the hazard of HIV acquisition in bacterial vaginosis-negative models. These findings persisted in sensitivity analyses whenever all covariates from the nonstratified model previously published were included, whenever other genital tract findings were excluded from the model and with the addition of condom-less sex and sperm on wet-prep. CONCLUSION: Future research should consider a potential interaction with bacterial vaginosis whenever evaluating the impact of hormonal contraception on HIV acquisition. PMID- 29334546 TI - Impact of early antiretroviral therapy eligibility on HIV acquisition: household level evidence from rural South Africa. AB - OBJECTIVES: We investigate the effect of immediate antiretroviral therapy (ART) eligibility on HIV incidence among HIV-uninfected household members. DESIGN: Regression discontinuity study arising from a population-based cohort. METHODS: Household members of patients seeking care at the Hlabisa HIV Treatment and Care Programme in rural KwaZulu-Natal South Africa between January 2007 and August 2011 with CD4 cell counts up to 350 cells/MUl were eligible for inclusion if they had at least two HIV tests and were HIV-uninfected at the time the index patient linked to care (N = 4115). Regression discontinuity was used to assess the intention-to-treat effect of immediate versus delayed ART eligibility on HIV incidence among household members. Exploiting the CD4 cell count-based threshold rule for ART initiation (CD4 < 200 cells/MUl until August 2011), we used Cox proportional hazards models to compare outcomes for household members of patients who presented for care with CD4 cell counts just above versus just below the ART initiation threshold. RESULTS: Characteristics of household members of index patients initiating HIV care were balanced between those with an index patient immediately eligible for ART (N = 2489) versus delayed for ART (N = 1626). There were 337 incident HIV infections among household members, corresponding to an HIV incidence of 2.4 infections per 100 person-years (95% confidence interval 2.5 3.1). Immediate eligibility for treatment reduced HIV incidence in households by 47% in our optimal estimate (hazard ratio = 0.53, 95% confidence interval 0.30 0.96), and by 32-60% in alternate specifications of the model. CONCLUSION: Immediate eligibility of ART led to substantial reductions in household-level HIV incidence. PMID- 29334547 TI - Quality of life improvement in resource-limited settings after one year of second line antiretroviral therapy use among adult men and women. AB - OBJECTIVE: We evaluated improvement of quality of life (QoL) after 1 year of second-line antiretroviral therapy (ART) use in resource-limited settings (RLS) among adult men and women, comparing two randomized treatment arms. DESIGN: The AIDS Clinical Trial Group A5273 was a randomized clinical trial of second-line ART comparing lopinavir/ritonavir (LPV/r) + raltegravir with LPV/r + nucleos(t)ide reverse transcriptase inhibitors (NRTIs) in participants failing a non-NRTI-containing regimen at 15 sites in nine RLS. Participants completed the AIDS Clinical Trial Group short-form-21 which has eight QoL domains with a standard score ranging from 0 (worst) to 100 (best). METHODS: Differences in QoL by randomized arm, as well as by demographic and clinical variables, were evaluated by regression models for baseline and week 48 QoL scores fitted using the generalized estimating equations method. RESULTS: A total of 512 individuals (49% men, median age 39 years) were included. A total of 512 and 492 participants had QoL assessments at baseline and week 48, respectively. QoL improved significantly from baseline to week 48 (P < 0.001 for all domains). There was no significant difference between treatment arms for any domain. Individuals with higher viral load and lower CD4 cell count at baseline had lower mean QoL at baseline but larger improvements such that mean QoL was similar at week 48. CONCLUSION: Improvements in QoL were similar after starting second-line ART of LPV/r combined with either raltegravir or NRTIs in RLS. QoL scores at baseline were lower among participants with worse disease status prior to starting second line, but after 1 year similar QoL scores were achieved. PMID- 29334548 TI - Plasma and intracellular pharmacokinetics of tenofovir in patients switched from tenofovir disoproxil fumarate to tenofovir alafenamide. AB - OBJECTIVES: The aim of the study was to compare the intraindividual plasma and intracellular peripheral blood mononuclear cell (PBMC) pharmacokinetics of tenofovir (TFV) and its intracellular metabolite, TFV-diphosphate (TFV-DP) in patients switched from a fixed-dose combination (FDC) tablet of TFV disoproxil fumarate (TDF)/emtricitabine (FTC)/elvitegravir (EVG)/cobicistat (COBI) to a FDC containing TFV alafenamide (TAF)/FTC/EVG/COBI. DESIGN: A single-arm, prospective, nonrandomized, cross-over, pharmacokinetic study in patients receiving a TDF containing regimen (TDF 300 mg/FTC 200 mg/EVG 150 mg/COBI 150 mg) switched to a TAF-containing FDC regimen (TAF 10 mg/FTC 200 mg/EVG 150 mg/COBI 150 mg). METHODS: Single, sparse plasma and PBMC samples were collected during TDF therapy and 4-8 weeks post-switch to the TAF-containing regimen. Plasma TFV and cell associated TFV-DP concentrations were determined with validated liquid chromatography tandem mass spectrometry methods. PBMC cell enumeration was performed by quantification of RNaseP (RPP30) gene copy numbers using a highly sensitive droplet digital PCR assay. Plasma and PBMC pharmacokinetics were summarized as geometric mean and compared as a geometric mean ratio with a Wilcoxon signed-rank test. RESULTS: In 30 participants with evaluable data, TFV plasma concentrations decreased 90% [TDF: 99.98 (2.24) ng/ml vs. TAF: 10.2 (1.6) ng/ml, P < 0.001] after the switch while cell-associated TFV-DP increased 2.41 fold [TAF: 834.7 (2.49) vs. TDF: 346.85 (3.75) fmol/10 cells, P = 0.004]. CONCLUSION: Intraindividually, plasma TFV concentrations significantly decreased while cell associated TFV-DP concentrations significantly increased after switching from a TDF to a TAF-containing antiretroviral therapy regimen. PMID- 29334549 TI - Cost-effectiveness of alternative strategies for provision of HIV preexposure prophylaxis for people who inject drugs. AB - BACKGROUND: Oral HIV preexposure prophylaxis (PrEP) has been recommended as a means of HIV prevention among people who inject drugs (PWIDs) but, at current prices, is unlikely to be cost-effective for all PWID. OBJECTIVE: To determine the cost-effectiveness of alternative strategies for enrolling PWID in PrEP. DESIGN: Dynamic network model that captures HIV transmission and progression among PWID in a representative US urban center. OUTCOME MEASURES: HIV infections averted, discounted costs and quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios. INTERVENTION: We assume 25% PrEP coverage and investigate four strategies: first, random PWID are enrolled (Unselected Enrollment); second, individuals are randomly selected and enrolled together with their partners (Enroll Partners); third, individuals with the highest number of sexual and needle-sharing partnerships are enrolled (Most Partners); fourth, individuals with the greatest number of infected partners are enrolled (Most Positive Partners). RESULTS: PrEP can achieve significant health benefits: compared with the status quo of no PrEP, the strategies gain 1114 QALYs (Unselected Enrollment), 2194 QALYs (Enroll Partners), 2481 QALYs (Most Partners), and 3046 QALYs (Most Positive Partners) over 20 years in a population of approximately 8500 people. The incremental cost-effectiveness ratio of each strategy compared with the status quo (cost per QALY gained) is $272 000 (Unselected Enrollment), $158 000 (Enroll Partners), $124 000 (Most Partners), and $101 000 (Most Positive Partners). All strategies except Unselected Enrollment are cost-effective according to WHO criteria. CONCLUSION: Selection of high-risk PWID for PrEP can improve the cost-effectiveness of PrEP for PWID. PMID- 29334551 TI - Rapid decline of HIV-1 DNA and RNA in infants starting very early antiretroviral therapy may pose a diagnostic challenge. AB - OBJECTIVE: Birth diagnosis of HIV-1 infection offers an ideal opportunity for early antiretroviral therapy (ART) to limit HIV-1 reservoir size and limit disease progression. Although data on cellular HIV-1 DNA decay exist for children commencing treatment from 2 to 3 months of age, data are lacking for starting shortly after birth. DESIGN: We studied infants who initiated ART within 8 days after birth to assess HIV-1 DNA levels longitudinally. METHODS: Children were recruited from public health clinics in Cape Town where birth diagnosis of HIV-1 coupled with early ART initiation occurred. Total cellular HIV-1 DNA levels were determined using a sensitive quantitative PCR targeting a conserved region in integrase. RESULTS: Of 11 infants diagnosed and beginning ART within 8 days of birth with detectable pre-ART HIV-1 DNA, three subsequently had undetectable HIV 1 DNA after 6 days, 3 months and 4 months on treatment, respectively. In seven who had virologic suppression (defined as a continuous downward trend in plasma HIV-1 RNA, and <100 copies/ml after 6 months) total HIV-1 DNA continued to decay over 12 months [mean half-life of 64.8 days (95% confidence interval: 47.9 105.7)]. CONCLUSION: In infants initiated on ART within 8 days of life the combination of maternal ART, and early ART for prophylaxis and treatment contribute to rapid decline of HIV-1 infected cells to low or undetectable levels. However, rapid decline of HIV-1 RNA and DNA may complicate definitive diagnosis when confirmatory testing is delayed. PMID- 29334553 TI - Post-treatment controllers after treatment interruption in chronically HIV infected patients. AB - OBJECTIVE: Control HIV replication requires continuous combined antiretroviral therapy (cART) as discontinuation of cART results in a rapid viral rebound. However, a few individuals exist who took cART for several years and did not show the expected viral rebound after treatment cessation. Most post-treatment controllers (PTCs) are early treated individuals. We report three cases who started cART during chronic infection. DESIGN: Patients were treated and monitored according to Italian guidelines. For the description of cases, the percentage of CD8CD38HLA*DR cells, CD8CD38HLA*DR cells, major histocompatibility complex genotyping, total HIV-DNA and plasma levels of anti-retroviral (ARV) drugs were performed. RESULTS: Patients started therapy during chronic infection. Patient 26636 started her first ARV drug two years after diagnosis and patients 93016 and 50293 started cART with high viral loads and low CD4 cell counts. Time without cART was 13, 11 and 1.5 years, respectively. None presented any of the protective class I HLA alleles and patient 93016 has the HLA-B*35 allele that appears to be enriched in PTCs. Patients 93016 and 50293 had very low levels of CD8CD38HLA*DR cells (<5%) much lower than those of patient 26636 (27%). T-cell associated HIV-DNA was 3.78, 3.48 and 3.13 log copies/10 CD4, respectively. CONCLUSION: Patients like ours may advance our understanding of the characteristics for which individuals may be more likely to achieve ART-free remissions. Furthermore, our patients are among the few so far described who started cART during chronic infection extending the hope that a functional cure is possible even in this setting. PMID- 29334554 TI - The Systemic-Immune-Inflammation Index Independently Predicts Survival and Recurrence in Resectable Pancreatic Cancer and its Prognostic Value Depends on Bilirubin Levels: A Retrospective Multicenter Cohort Study. AB - OBJECTIVE: Our aim was to determine the prognostic significance of the systemic immune-inflammation index (SIII) in patients with resectable pancreatic cancer, using cancer-specific survival as the primary outcome. BACKGROUND: Pancreatic cancer is associated with a dysfunctional immune system and poor prognosis. We examined the prognostic significance of the SIII in patients with resectable pancreatic ductal adenocarcinoma (PDAC) and the effects of bilirubin on this index. METHODS: We retrospectively assessed all pancreatic resections performed between 2004 and 2015 at 4 tertiary referral centers to identify pathologically confirmed PDAC patients. Baseline clinicopathologic characteristics, preoperative laboratory values such as absolute neutrophil, lymphocyte, and platelet counts, C reactive protein, albumin, bilirubin, and CA19-9 levels, and also follow-up information, were collected. The associations of the calculated inflammatory indices with outcome were both internally and externally validated. RESULTS: In all, 590 patients with resectable PDAC were included. The discovery and validation cohort included 170 and 420 patients, respectively. SIII >900 [hazard ratio (HR) 2.32, 95% confidence interval (CI) 1.55-3.48], lymph node ratio (HR 3.75, 95% CI 2.08-6.76), and CA19.9 >200 kU/L (HR 1.62, 95% CI 1.07-2.46) were identified as independent predictors of cancer-specific survival. Separate model analysis confirmed that preoperative SIII contributed significantly to prognostication. However, SIII appeared to lose its prognostic significance in patients with bilirubin levels above 200 MUmol/L. CONCLUSIONS: SIII is an independent predictor of cancer-specific survival and recurrence in patients with resectable PDAC. SIII may lose its prognostic significance in patients with high bilirubin levels. Properly designed prospective studies are needed to further confirm this hypothesis. PMID- 29334550 TI - Chronic hepatitis C virus infection and subsequent HIV viral load among women with HIV initiating antiretroviral therapy. AB - OBJECTIVES: One in four persons living with HIV is coinfected with hepatitis C virus (HCV). Biological and behavioral mechanisms may increase HIV viral load among coinfected persons. Therefore, we estimated the longitudinal effect of chronic HCV on HIV suppression after ART initiation among women with HIV (WWH). DESIGN: HIV RNA was measured every 6 months among 441 WWH in the Women's Interagency HIV Study who initiated ART from 2000 to 2015. METHODS: Log-binomial regression models were used to compare the proportion of study visits with detectable HIV RNA between women with and without chronic HCV. Robust sandwich variance estimators accounted for within-person correlation induced by repeated HIV RNA measurements during follow-up. We controlled for confounding and selection bias (because of loss to follow-up and death) using inverse probability of-exposure-and-censoring weights. RESULTS: One hundred and fourteen women (25%) had chronic HCV before ART initiation. Overall, the proportion of visits with detectable HIV RNA was similar among women with and without chronic HCV [relative risk (RR) 1.19 (95% CI 0.72, 1.95)]. Six months after ART initiation, the proportion of visits with detectable HIV RNA among women with chronic HCV was 1.88 (95% CI 1.41-2.51) times that among women without HCV, at 2 years, the ratio was 1.60 (95% CI 1.17-2.19), and by 6 years there was no difference (1.03; 95% CI 0.60-1.79). CONCLUSION: Chronic HCV may negatively impact early HIV viral response to ART. These findings reaffirm the need to test persons with HIV for HCV infection, and increase engagement in HIV care and access to HCV treatment among persons with HIV/HCV coinfection. PMID- 29334555 TI - Multi-institutional Analysis of Recurrence and Survival After Neoadjuvant Chemoradiotherapy of Esophageal Cancer: Impact of Histology on Recurrence Patterns and Outcomes. AB - OBJECTIVE: To determine the impact of histology on pathologic response, survival outcomes, and recurrence patterns in patients with esophageal cancer (EC) who received neoadjuvant chemoradiotherapy (CRT). SUMMARY OF BACKGROUND DATA: There is a paucity of data regarding comparative outcomes after neoadjuvant CRT between esophageal squamous cell carcinoma (SCC) and adenocarcinoma. METHODS: Between 2002 and 2015, 895 EC patients who underwent neoadjuvant CRT followed by esophagectomy at 3 academic institutions were retrospectively reviewed, including 207 patients with SCC (23.1%) and 688 patients with adenocarcinoma (76.9%). Pathologic response, survival, recurrence pattern, and potential prognostic factors were compared. RESULTS: Pathologic complete response (pCR) rate was significantly higher for SCC compared with adenocarcinoma (44.9% vs 25.9%, P < 0.001). After a median follow-up of 52.9 months, 71 patients (34.3%) with SCC versus 297 patients (43.2%) with adenocarcinoma had recurrent disease (P = 0.023). For patients who achieved a pCR, no significant differences were found in recurrence pattern, sites, or survival end-points between the 2 histology groups. For non-pCR patients, the SCC group demonstrated significantly higher regional and supraclavicular recurrence rates but a lower hematogenous metastasis rate than adenocarcinoma patients, whereas the adenocarcinoma patients had a more favorable locoregional failure-free survival (P = 0.005) and worse distant metastasis-free survival (P = 0.024). No differences were found in overall survival (P = 0.772) or recurrence-free survival (P = 0.696) between groups. CONCLUSIONS: SCC was associated with a significantly higher pCR rate than adenocarcinoma. Recurrence pattern and survival outcomes were significantly different between the 2 histology subtypes in non-pCR patients. PMID- 29334556 TI - Decoding Grade B Pancreatic Fistula: A Clinical and Economical Analysis and Subclassification Proposal. AB - OBJECTIVE: The aim of this study was to describe characteristics and management approaches for grade B pancreatic fistula (B-POPF) and investigate whether it segregates into distinct subclasses. BACKGROUND: The 2016 ISGPS refined definition of B-POPF is predicated on various postoperative management approaches, ranging from prolonged drainage to interventional procedures, but the spectrum of clinical severity within this entity is yet undefined. METHODS: Pancreatectomies performed at 2 institutions from 2007 to 2016 were reviewed to identify B-POPFs and their treatment strategies. Subclassification of B-POPFs into 3 classes was modeled after the Fistula Accordion Severity Grading System (B1: prolonged drainage only; B2: pharmacologic management; B3: interventional procedures). Clinical and economic outcomes, unique from the ISGPS definition qualifiers, were analyzed across subclasses. RESULTS: B-POPF developed in 320 of 1949 patients (16.4%), and commonly required antibiotics (70.3%), prolonged drainage (67.8%), and enteral/parenteral nutrition (54.7%). Percutaneous drainage occurred in 79 patients (24.7%), always in combination with other strategies. Management of B-POPFs was widely heterogeneous with a median of 2 approaches/patient (range 1 to 6) and 38 various strategy combinations used. Subclasses B1-3 comprised 19.1%, 52.2%, and 28.8% of B-POPFs, respectively, and were associated with progressively worse clinical and economic outcomes. These results were confirmed by multivariable analysis adjusted for clinical and operative factors. Notably, distribution of the B-POPF subclasses was influenced by institution and type of resection (P < 0.001), while clinical/demographic predictors proved elusive. CONCLUSION: B-POPF is a heterogeneous entity, where 3 distinct subclasses with increasing clinical and economic burden can be identified. This classification framework has potential implications for accurate reporting, comparative research, and performance evaluation. PMID- 29334557 TI - So What's the Chance of This Mesh Causing Me a Problem in the Long Run? PMID- 29334558 TI - Comment on: A Propensity Score Matched Analysis of Open Versus Minimally Invasive Transthoracic Esophagectomy in the Netherlands. PMID- 29334559 TI - Sex Differences in Faculty Rank Among Academic Surgeons in the United States in 2014. AB - OBJECTIVE: The aim of this study was to evaluate sex differences in full professorship among a comprehensive, contemporary cohort of US academic surgeons. SUMMARY OF BACKGROUND DATA: Previous work demonstrates that women are less likely than men to be full professors in academic medicine, and in certain surgical subspecialties. Whether sex differences in academic rank exist across all surgical fields, and after adjustment for confounders, is not known. METHODS: A comprehensive list of surgeons with faculty appointments at US medical schools in 2014 was obtained from Association of American Medical Colleges (AAMC) faculty roster and linked to a comprehensive physician database from Doximity, an online physician networking website, which contained the following data for all physicians: sex, age, years since residency, publication number (total and first/last author), clinical trials participation, National Institutes of Health grants, and surgical subspecialty. A 20% sample of 2013 Medicare payments for care was added to this dataset. Multivariable regression models were used to estimate sex differences in full professorship, adjusting for these variables and medical school-specific fixed effects. RESULTS: Among 11,549 surgeon faculty at US medical schools in 2014, 1692 (14.7%) were women. Women comprised 19.4% of assistant professors (1072/5538), 13.8% of associate professors (404/2931), and 7.0% of full professors (216/3080). After multivariable analysis, women were less likely to be full professors than men (adjusted odds ratio: 0.76, 95% confidence interval: 0.6-0.9). CONCLUSION: Among surgical faculty at US medical schools in 2014, women were less likely than men to be full professors after adjustment for multiple factors known to impact faculty rank. PMID- 29334560 TI - Proposed Modification of the 8th Edition of the AJCC Staging System for Pancreatic Ductal Adenocarcinoma. AB - OBJECTIVE: The aim of this study was to improve the 8th edition (8th) of the American Joint Committee on Cancer (AJCC) staging system for pancreatic ductal adenocarcinoma (PDAC). BACKGROUND: The new 8th AJCC staging system for PDAC was released in October, 2016, and will be applied in clinical practice in 2018. METHODS: Two large cohorts were included in this analysis. One consisted of 45,856 PDAC patients in the Surveillance, Epidemiology, and End Results (SEER) database (2004-2014), and the other consisted of 3166 PDAC patients in the Fudan University Shanghai Cancer Center (FUSCC) database (2005-2015). RESULTS: Using the 8th AJCC staging system, the median overall survival of the patients in the same stage varied widely among the different substages. We proposed a modified staging system based on median OS in which we maintained the T, N, and M definitions, but regrouped the substages. In the SEER cohort, the concordance index was higher for local disease with the modified staging system [0.637; 95% confidence interval (CI) 0.631-0.642] than with the 8th AJCC staging system (0.620, 95% CI 0.615-0.626). Similar findings were also observed in the FUSCC cohort. In addition, we verified the reliability of the modified staging system in an analysis of patients with different examined lymph node counts (>=15 or 1 14). CONCLUSIONS: The modified 8th AJCC staging system for PDAC proposed in this study provides improvements and may be evaluated for potential adoption in the next edition. PMID- 29334561 TI - Preoperative 18F-FDG PET/CT in Pheochromocytomas and Paragangliomas Allows for Precision Surgery. AB - BACKGROUND: Fluorodeoxyglucose (F-FDG) positron emission tomography/computed tomography (PET/CT) imaging is recommended in patients with metastatic pheochromocytoma (PC) and paraganglioma (PGL). There are no data on whether routine preoperative F-FDG PET/CT in all patients with PC/PGL impacts surgical management. OBJECTIVE: The aim of this study was to determine whether routine preoperative F-FDG PET/CT imaging affects the surgical management of patients with PC/PGLs. METHODS: We analyzed clinical, biochemical, genetic, and anatomic imaging data in 93 consecutive patients with PC/PGL who collectively underwent a total of 100 operations and who had preoperative F-FDG PET/CT imaging. RESULTS: Of 100 operations, preoperative F-FDG PET/CT showed additional lesions compared to anatomic imaging in 15 cases. These patients were more likely to undergo an open surgical approach (P < 0.05). Presence of genetic mutation, redo operations, sex, age, or tumor size had no significant association with finding additional lesions on F-FDG PET/CT. CONCLUSIONS: Additional lesions detected on preoperative F-FDG-PET/CT imaging have an impact on the surgical approach in patients with PC/PGLs. Therefore, surgeons should routinely obtain F-FDG-PET/CT imaging in patients with PC/PGL to allow for a more precise surgical intervention. PMID- 29334563 TI - Response to the Letter to the Editor by CM den Bakker and DL van Der Peet. PMID- 29334562 TI - Is a Pathological Complete Response Following Neoadjuvant Chemoradiation Associated With Prolonged Survival in Patients With Pancreatic Cancer? AB - OBJECTIVES: To describe the survival outcome of patients with borderline resectable or locally advanced pancreatic ductal adenocarcinoma (BR/LA-PDAC) who have a pathologic complete response (pCR) following neoadjuvant chemoradiation. BACKGROUND: Patients with BR/LA-PDAC are often treated with neoadjuvant chemoradiation in an attempt to downstage the tumor. Uncommonly, a pCR may result. METHODS: A retrospective review of a prospectively maintained database was performed at a single institution. pCR was defined as no viable tumor identified in the pancreas or lymph nodes by pathology. A near complete response (nCR) was defined as a primary tumor less than 1 cm, without nodal metastasis. Overall survival (OS) and disease-free survival (DFS) were reported. RESULTS: One hundred eighty-six patients with BR/LA-PDAC underwent neoadjuvant chemoradiation and subsequent pancreatectomy. Nineteen patients (10%) had a pCR, 29 (16%) had an nCR, and the remaining 138 (74%) had a limited response. Median DFS was 26 months in patients with pCR, which was superior to nCR (12 months, P = 0.019) and limited response (12 months, P < 0.001). The median OS of nCR (27 months, P = 0.003) or limited response (26 months, P = 0.001) was less than that of pCR (more than 60 months). In multivariable analyses pCR was an independent prognostic factor for DFS (HR = 0.45; 0.22-0.93, P = 0.030) and OS (HR=0.41; 0.17-0.97, P = 0.044). Neoadjuvant FOLFIRINOX (HR=0.47; 0.26-0.87, P = 0.015) and negative lymph node status (HR=0.57; 0.36-0.90, P = 0.018) were also associated with improved survival. CONCLUSIONS: Patients with BR/LA-PDAC who had a pCR after neoadjuvant chemoradiation had a significantly prolonged survival compared with those who had nCR or a limited response. PMID- 29334564 TI - Validating the Electronic Cardiac Arrest Risk Triage (eCART) Score for Risk Stratification of Surgical Inpatients in the Postoperative Setting: Retrospective Cohort Study. AB - OBJECTIVE: Assess the accuracy of 3 early warning scores for predicting severe adverse events in postoperative inpatients. SUMMARY OF BACKGROUND DATA: Postoperative clinical deterioration on inpatient hospital services is associated with increased morbidity, mortality, and cost. Early warning scores have been developed to detect inpatient clinical deterioration and trigger rapid response activation, but knowledge regarding the application of early warning scores to postoperative inpatients is limited. METHODS: This was a retrospective cohort study of adult patients hospitalized on the wards after surgical procedures at an urban academic medical center from November, 2008 to January, 2016. The accuracies of the Modified Early Warning Score (MEWS), National Early Warning Score (NEWS), and the electronic cardiac arrest risk triage (eCART) score were compared in predicting severe adverse events (ICU transfer, ward cardiac arrest, or ward death) in the postoperative period using the area under the receiver operating characteristic curve (AUC). RESULTS: Of the 32,537 patient admissions included in the study, 3.8% (n = 1243) experienced a severe adverse outcome after the procedure. The accuracy for predicting the composite outcome was highest for eCART [AUC 0.79 (95% CI: 0.78-0.81)], followed by NEWS [AUC 0.76 (95% CI: 0.75 0.78)], and MEWS [AUC 0.75 (95% CI: 0.73-0.76)]. Of the individual vital signs and labs, maximum respiratory rate was the most predictive (AUC 0.67) and maximum temperature was an inverse predictor (AUC 0.46). CONCLUSION: Early warning scores are predictive of severe adverse events in postoperative patients. eCART is significantly more accurate in this patient population than both NEWS and MEWS. PMID- 29334565 TI - Reversal of Intestinal Failure in Children With Tufting Enteropathy Supported With Parenteral Nutrition at Home. AB - OBJECTIVES: The aim of the study was to review long-term outcome of intestinal epithelial dysplasia (IED)/tufting enteropathy (TE) patients treated with parenteral nutrition (PN) at home managed by an intestinal failure (IF) rehabilitation service. METHODS: Infants presenting from 1986 to 2010 with IF, and TE histology were retrospectively reviewed for up to 30 years. Data collected included outcome, presentation, nutrition (parenteral/enteral), country of residence, race, EpCAM gene, growth, bone age, and occupation. RESULTS: Thirteen patients (6 boys) in Malta and the UK with TE histology were established on home PN. Survival was 100% for UK children and 92% overall (1 death aged 13 months). Six patients (50% of the surviving 12) weaned off PN. Overall PN requirements reduced with increasing age and <7 infusions/week were needed by 10/12, 83% by 10 years, 6/8, 75% who had reached 15 years, 5/7, 71% who had reached 20, and all 4, 100% >25 years. Two of 12 cases weaned from PN by 10 years, 1 of 8 by 15 years, 3 of 7 by 20 years, and 3 of 4 or 75% >25 years. Seven Maltese patients homozygous for the same EPCAM gene abnormality had a similar outcome to the other cases. Weight, height, bone mineralization, bone age, and insulin-like growth factor-1 (IGF-1) levels were low, but improved with age. Patients achieved educational levels of parents and were employed. CONCLUSIONS: IED cases should have >92% chance of long-term survival and >50% chance of enteral autonomy by/in early adult life and 75% by 25 years. Even if PN dependent s/he can gain employment. Patients with IED managed on PN at home by an IF rehabilitation service should avoid intestinal transplant. PMID- 29334566 TI - Deficiency of transforming growth factor-beta signaling disrupts memory processes in rats. AB - Cytokines, in addition to their participation in immune and inflammatory processes, play an important role in synaptic plasticity, neoneurogenesis, and cognitive functions. In our work, we aimed to clarify the role of the transforming growth factor-beta (TGF-beta), which is recognized as a multifunctional cytokine, in memory processes. Behavioral experiments were carried out in rats using step-through passive avoidance test. The results obtained showed that the learning of animals after treatment with SB431542, a selective inhibitor of TGF-beta receptors, was impaired, which indicated a significant memory deterioration. Nevertheless, the memory of rats remained at the control level when TGF-beta and SB431542 were coadministered. Thus, the role of TGF-beta in memory retrieval after the passive avoidance test was revealed: memory in rats was weakened if the TGF-beta signaling pathway was inhibited during learning. Evidently, successful consolidation of at least some types of memory requires a normal level of TGF-beta, indicating the modulation of cognitive functions by cytokines under normal physiological conditions. PMID- 29334567 TI - Pediatric vascular trauma practice patterns and resource availability: A survey of American College of Surgeon-designated pediatric trauma centers. AB - BACKGROUND: Variation exists in pediatric vascular trauma management. We aim to determine practice patterns for vascular trauma management at American College of Surgeons verified pediatric trauma centers and evaluate the resources available for management of vascular trauma at both freestanding children's hospitals (FSCH) and pediatric hospitals within general adult hospitals. METHODS: Pediatric surgeons and trauma medical directors at American College of Surgeons designated pediatric surgery trauma centers completed a survey designed to evaluate anticipated management of traumatic arterial injuries and resource availability. Hospital setting comparisons were made using Fisher exact tests and t tests. Binomial tests were used to compare pediatric and vascular surgeons' responses to clinical vignettes. p Values of 0.05 or less were significant. RESULTS: One hundred seventy-six (42%) of 414 pediatric surgeons participated. Vascular surgeons are more likely to operatively manage vascular trauma at all anatomic sites except subclavian artery when compared to pediatric surgeons, regardless of hospital setting (p <0.001). Forty-eight percent of the pediatric trauma medical directors completed their portion of the survey. At FSCHs, 36% did not have a fellowship-trained vascular surgeon on-call schedule, 27% did not have endovascular capabilities, and 18% did not have a radiology technologist always available. CONCLUSION: Vascular surgeons are more likely to manage pediatric vascular trauma regardless of hospital setting. However, FSCH have fewer resources available to provide optimal care. LEVEL OF EVIDENCE: Care management, level IV. PMID- 29334568 TI - Goal-directed hemostatic resuscitation for trauma induced coagulopathy: Maintaining homeostasis. PMID- 29334569 TI - Assessment of prehospital hemorrhage and airway care using a simulation model. AB - BACKGROUND: The quality of prehospital care impacts patient outcomes. Military efforts have focused on training revision and the creation of high-fidelity simulation models to address potentially survivable injuries. We sought to investigate the applicability of models emphasizing hemorrhage control and airway management to a civilian population. METHODS: Prehospital health care providers (PHPs) undergoing their annual training were enrolled. A trauma scenario was simulated with two modules: hemorrhage control and airway management. Experienced raters used a validated tool to assess performance. Pearson correlation, logistic regression, and chi tests were used for analysis. RESULTS: Ninety-five PHPs participated with a mean experience of 15.9 +/- 8.3 years, and 7.4% reported past military training. The PHPs' overall execution rate of the six hemorrhage control measures varied from 38.9% to 88.4%. The median blood loss was 1,700 mL (interquartile range, 1,043-2,000), and the mean global rater score was 25.0 +/- 7.4 (scale, 5-40). There was a significant relationship between PHP profession and past military experience to their consideration of blood transfusion and tranexamic acid. An inverse relationship between blood loss and global rater score was found (r = -0.59, n = 88, p = 1.93 * 10). After simulated direct laryngoscope failure in the airway module, 58% of PHPs selected video laryngoscopy over placement of a supraglottic airway. Eighty-six percent of participants achieved bilateral chest rise in the manikin regardless of management method. Participants reported improved comfort with skills after simulation. CONCLUSION: Our data reveal marginal performance in hemorrhage control regardless of the PHP's prior experience. The majority of PHPs were able to secure an advanced airway if direct laryngoscope was unavailable with a predisposition for video laryngoscopy over supraglottic airway. Our findings support the need for continued training for PHPs highlighting hemorrhage control maneuvers and increased familiarity with airway management options. Improved participant confidence posttraining gives credence to simulation training. LEVEL OF EVIDENCE: Prognostic/epidemiological study, level III. PMID- 29334570 TI - The effect of prehospital transport time, injury severity, and blood transfusion on survival of US military casualties in Iraq. AB - BACKGROUND: Reducing time from injury to care can optimize trauma patient outcomes. A previous study of prehospital transport of US military casualties during the Afghanistan conflict demonstrated the importance of time and treatment capability for combat casualty survival. METHODS: A retrospective descriptive analysis was conducted to analyze battlefield data collected on US military combat casualties during the Iraq conflict from March 19, 2003, to August 31, 2010. All casualties were analyzed by mortality outcome (killed in action, died of wounds, case fatality rate) and compared with Afghanistan conflict. Detailed data for those who underwent prehospital transport were analyzed for effects of transport time, injury severity, and blood transfusion on survival. RESULTS: For the total population, percent killed in action (16.6% vs. 11.1%), percent died of wounds (5.9% vs. 4.3%), and case fatality rate (10.0 vs. 8.6) were higher for Iraq versus Afghanistan (p < 0.001). Among 1,692 casualties (mean New Injury Severity Score, 22.5; mortality, 17.6%) with detailed data, the injury mechanism included 77.7% from explosions and 22.1% from gunshot wounds. For prehospital transport, 67.6% of casualties were transported within 60 minutes, and 32.4% of casualties were transported in greater than 60 minutes. Although 97.0% of deaths occurred in critical casualties (New Injury Severity Score, 25-75), 52.7% of critical casualties survived. Critical casualties were transported more rapidly (p < 0.01) and more frequently within 60 minutes (p < 0.01) than other casualties. Critical casualties had lower mortality when blood was received (p < 0.01). Among critical casualties, blood transfusion was associated with survival irrespective of transport time within or greater than 60 minutes (p < 0.01). CONCLUSION: Although data were limited, early blood transfusion was associated with battlefield survival in Iraq as it was in Afghanistan. LEVEL OF EVIDENCE: Performance improvement and epidemiological, level IV. PMID- 29334571 TI - Use of French lyophilized plasma transfusion in severe trauma patients is associated with an early plasma transfusion and early transfusion ratio improvement. AB - BACKGROUND: Early transfusion of high ratio of fresh frozen plasma (FFP) and red blood cells (RBC) is associated with mortality reduction. However, time to reach high ratio is limited by the need to thaw the FFP. French lyophilized plasma (FLYP) used by French army and available in military teaching hospital does not need to be thawed and is immediately available. We hypothesize that the use of FLYP may reduce time to reach a plasma/RBC ratio of 1:1. METHODS: A retrospective study performed in a Level 1 trauma center between January 2012 and December 2015. Severe trauma patients who received 2 U of RBC in the emergency room were included and assigned to two groups according to first plasma transfused: FLYP group and FFP group. RESULTS: Forty-three severe trauma patients in the FLYP group and 29 in the FFP group were included. The time until first plasma transfusion was shorter in the FLYP group than in the FFP group, respectively 15 min (10-25) versus 95 min (70-145) (p < 0.0001). Time until a 1:1 ratio was shorter in the FLYP group than in the FFP group. There were significantly fewer cases of massive transfusion in the FLYP group than in the FFP group with respectively 7% vs. 45% (p < 0.0001). CONCLUSION: The use of FLYP provided significantly faster plasma transfusions than the use of FFP as well as a plasma and RBC ratio superior to 1:2 that was reached more rapidly in severe trauma patients. These results may explain the less frequent need for massive transfusion in the patients who received FLYP. These positive results should be confirmed by a prospective and randomized evaluation. LEVEL OF EVIDENCE: Therapeutic, level IV. PMID- 29334572 TI - Assessment of Parasympathetic Activity in Athletes: Comparing Two Different Methods-RETRACTION. PMID- 29334573 TI - A Fresh Cadaver Study on Indocyanine Green Fluorescence Lymphography: A New Whole Body Imaging Technique for Investigating the Superficial Lymphatics. AB - BACKGROUND: Identification of the lymphatic system in cadavers is painstaking because lymphatic vessels have very thin walls and are transparent. Selection of appropriate contrast agents is a key factor for successfully visualizing the lymphatics. In this study, the authors introduce a new imaging technique of lymphatic mapping in the whole bodies of fresh cadavers. METHODS: Ten fresh human cadavers were used for this study. The authors injected 0.1 ml of indocyanine green fluorescence solution subcutaneously at multiple spots along the watershed lines between lymphatic territories and hand and foot regions. After the body was scanned by the near-infrared camera system, fluorescent tissues were harvested and histologic examination was performed under the microscope equipped with the infrared camera system to confirm that they were the lymphatics. RESULTS: Subcutaneously injected indocyanine green was immediately transported into the lymphatic vessels after gentle massage on the injection points. Sweeping massage along the lymphatic vessels facilitated indocyanine green transport inside the lymphatic vessel to move toward the lymph nodes. The lymphatic system was visualized well in the whole body. Histologic examinations confirmed that indocyanine green was detected in the lymphatic lumens specifically, even when located far from the injected points. CONCLUSIONS: The lymphatic system could be visualized in whole-body fresh cadavers, as in living bodies, using indocyanine green fluorescence lymphography. Compatibility of indocyanine green lymphography would facilitate the use of cadaveric specimens for macroscopic and microscopic analyses. PMID- 29334574 TI - Improved Long-Term Volume Retention of Stromal Vascular Fraction Gel Grafting with Enhanced Angiogenesis and Adipogenesis. AB - BACKGROUND: The apoptosis of mature adipocytes after fat grafting can result in chronic inflammation, absorption, and fibrosis, leading to unpredictable outcomes. Selective elimination of mature adipocytes may result in better outcomes and a different underlying retention mode. The authors previously developed a mature adipocyte-free product, stromal vascular fraction gel, derived from lipoaspirate, which eliminates adipocytes and preserves the stromal vascular fraction. This study investigated the retention and regeneration mode of stromal vascular fraction gel grafting. METHODS: Nude mice were grafted with human derived stromal vascular fraction gel or Coleman fat. Detailed cellular events over 3 months were investigated histologically and immunohistochemically. RESULTS: The retention rate 90 days after grafting was significantly higher for stromal vascular fraction gel grafts than for standard Coleman fat (82 +/- 15 percent versus 42 +/- 9 percent; p < 0.05). Histologic analysis suggested that, unlike Coleman fat grafts, stromal vascular fraction gel grafts did not include significant necrotic areas. Moreover, although adipose tissue regeneration was found in grafts of both groups, rapid angiogenesis and macrophage infiltration were observed at a very early stage after stromal vascular fraction gel grafting. The presence of small preadipocytes with multiple intracellular lipid droplets in stromal vascular fraction gel grafts on day 3 also suggested very early adipogenesis. Although some of the cells in the stromal vascular fraction survived in stromal vascular fraction gel grafts, most of the newly formed adipose tissue was host-derived. CONCLUSION: Stromal vascular fraction gel has a high long-term retention rate and a unique adipose regeneration mode, involving prompt inflammation and infiltration of immune cells, stimulating rapid angiogenesis and inducing host cell-mediated adipogenesis. PMID- 29334575 TI - Measurement of Warping Angle in Human Rib Graft: An Experimental Study. AB - BACKGROUND: The purpose of this study was to determine the warping angle of the costal cartilage in vivo. METHODS: A nasal framework reconstruction with a rib graft was performed in a total of 130 patients. After the cartilage specimens were prepared, the remaining grafts were used for study. The angle of warping in all grafts was measured at 0, 30, and 60 minutes; after 24 hours; and after 1 week. Eight subgroups of graft thicknesses from central and peripheral groups, determined according to the perichondral distance of the grafts, were evaluated, and the warping angles of 48 osteochondral and chondral grafts were measured individually. Three-way analysis of variance was used to compare the change in warping over time to detect differences in the grafts. RESULTS: Significant differences were not observed in the 1- to 3-mm-thick grafts of peripheral and central origin before 30 minutes (p > 0.05), although significant differences were observed in these groups for all time points after 30 minutes (p < 0.05). In central and peripheral grafts thicker than 4 mm, a significant warping angle was not observed (p > 0.05). In central origin grafts thinner than 1 mm, significant differences were not observed in the warping angle (p > 0.05), although they were observed in the same grafts of peripheral origin (p < 0.05). Peripheral origin grafts thicker than 1 mm showed warping in the direction of the perichondrium (p < 0.05), whereas central origin grafts thinner than 1 mm showed warping angle irregularities. CONCLUSION: Interlocking stresses are very important in rib grafts when balanced cross-sectional carving occurs from the peripheral to the central areas. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, V. PMID- 29334576 TI - Cheek Volumization and the Nasolabial Fold. AB - BACKGROUND: The impression that cheek filling results in longitudinal shortening ("lift") of the skin and elevation of the nasolabial crease or nasolabial fold has become common within the facial injection community but remains unsubstantiated. METHODS: In this study, 77 patients were evaluated before and after injection of the cheeks with a hyaluronic acid filler using a three dimensional camera system. RESULTS: A constant pattern of skin expansion away from the center of the injection and perpendicular to the surface of the skin was observed. A subgroup of 37 patients without differences in their preinjection and postinjection facial expression were analyzed by direct comparison and failed to demonstrate lateral traction (or "pull") on the intervening skin from the cheek injection site to the nasolabial crease. Furthermore, there was no photographic difference in the nasolabial fold or nasolabial crease. The only patients who demonstrated photographic improvement of the medial face were those who had filler placed directly in the transition between the lateral nasolabial fold and cheek (nasojugal crease). CONCLUSIONS: Filling the cheek with 3 cc of volume does not create traction forces or move the skin between the site of injection and the nasolabial crease. It is likely that expanding the nasojugal crease is the direct visual cue that leads to perceived improvement in the nasolabial fold. PMID- 29334577 TI - Consequences of the F.D.A. Directed Moratorium on Silicone Gel Breast Implants - 1992-2006. AB - The FDA silicone gel breast implant moratorium occurred 25 years ago. The immediate and long-term consequences of the moratorium are reviewed and assessed. PMID- 29334578 TI - Commentary on Norm Cole's "Moratorium Consequences." PMID- 29334579 TI - Implementation of [18F]-labeled amyloid brain PET imaging biomarker in the diagnosis of Alzheimer's disease: first-hand experience in Thailand. PMID- 29334580 TI - Load-Power Relationship During a Countermovement Jump: A Joint Level Analysis. AB - Williams, KJ, Chapman, DW, Phillips, EJ, and Ball, N. Load-power relationship during a countermovement jump: A joint level analysis. J Strength Cond Res 32(4): 955-961, 2018-This study aimed to investigate whether hip, knee, and ankle peak power is influenced by the relative load lifted, altering the joint and system load-power relationship during a countermovement jump (CMJ). Twenty-three male national representative athletes (age: 20.3 +/- 3.1 years, squat 1 repetition maximum [1RM]: 133.8 +/- 24.8 kg) completed 3 CMJs at relative barbell loads of 0, 10, 20, 30, and 40% of an athlete's estimated back squat 1RM. Ground reaction force and joint kinematics were captured using a 16 camera motion capture array integrated with 2 in-ground triaxial force plates. Hip ((Equation is included in full-text article.)= 20%, range 0 > 40%), knee ((Equation is included in full text article.)= 0%, 0 > 20%), and ankle ((Equation is included in full-text article.)= 40%, 0 > 40%) peak power was maximized at different percentages of absolute strength, with an athlete-dependent variation in load-power profiles observed across all lower-body joints. A decrease in system (body + barbell mass) peak power was significantly (p <= 0.05, r = 0.45) correlated with a reduction in knee peak power. Timing of instantaneous system and hip peak power occurred significantly closer to toe-off as load increased. The findings highlight that the generation and translation of lower-body joint power is influenced by external load and athlete-dependent traits. This subsequently alters the load power profile at a system level, explaining the broad spectrums of loads reported to optimize system power during a CMJ. When training, we recommend that a combination of barbell loads based on assorted percentages of the estimated 1RM be prescribed to optimize joint and system power during a CMJ. PMID- 29334581 TI - Gender- and Muscle-Specific Responses During Fatiguing Exercise. AB - Hill, EC, Housh, TJ, Smith, CM, Schmidt, RJ, and Johnson, GO. Gender- and muscle specific responses during fatiguing exercise. J Strength Cond Res 32(5): 1471 1478, 2018-The purpose of the present investigation was to examine potential gender-related differences in electromyographic (EMG) and mechanomyographic (MMG) responses during submaximal, concentric, isokinetic, forearm flexion muscle contractions. Twelve men and 12 women performed concentric peak torque trials before (pretest) and after (posttest) a fatiguing exercise bout that consisted of 50 submaximal (65% of concentric peak torque), concentric, isokinetic (60 degrees .s), forearm flexion muscle contractions. Surface EMG and MMG signals were simultaneously recorded from the biceps brachii and brachioradialis muscles. There was a gender-related difference in the decline in absolute concentric peak torque for the men (23.8%) vs. women (18.5%) that was eliminated when covaried for differences in pretest concentric peak torque values. During the fatiguing exercise bout, EMG amplitude(AMP) increased and EMG mean power frequency (MPF) decreased for both genders and muscles. There were, however, muscle- and gender specific increases, decreases, and no changes for MMG AMP and MMG MPF. The gender related difference for the posttest decline in concentric peak torque was associated with differences in muscle strength which may have resulted in greater blood flow occlusion in the men than the women. The muscles with the most pronounced fatigue-induced neuromuscular responses were the biceps brachii in men and the brachioradialis in women. These findings may be related to gender differences in the usage patterns of synergistic muscles during a fatiguing task. PMID- 29334582 TI - Carbohydrate Mouth Rinsing Does Not Prevent the Decline in Maximal Strength After Fatiguing Exercise. AB - Black, CD, Schubert, DJ, Szczyglowski, MK, and Wren, JD. Carbohydrate mouth rinsing does not prevent the decline in maximal strength after fatiguing exercise. J Strength Cond Res 32(9): 2466-2473, 2018-Carbohydrate (CHO) rinsing has been shown to attenuate the decline of maximal voluntary contractions (MVCs) after fatiguing exercise-perhaps through a central mechanism. This study sought to determine the effect of a CHO rinse on MVC, voluntary activation, and contractile properties after fatiguing exercise. Thirteen adults participated in a double-blind, cross-over study. Maximal voluntary contraction of the dominant knee extensors was assessed, and voluntary activation (%VA) was determined using twitch interpolation. Participants then held 50% of MVC until volitional fatigue followed by a 20-second rinse with a solution of 8% maltodextrin (CHO) or placebo (PLA). Maximal voluntary contraction and %VA were reassessed immediately and 5 minutes after exercise. Maximal voluntary contraction did not differ between the CHO and PLA conditions initially (230 +/- 90 vs. 232 +/- 90 N.m; p = 0.69). Maximal voluntary contraction declined after exercise (p <= 0.01), but no differences were found between the CHO and PLA conditions (p >= 0.59). %VA did not differ between conditions (91.9 +/- 2.9% vs. 91.5 +/- 3.8%; p >= 0.11) nor did it change after exercise (p = 0.57). Twitch torque, rate of torque development, and rate of torque relaxation were reduced after exercise (p <= 0.05) but were unaffected by CHO rinsing (p > 0.05). Unlike a previous study, a CHO rinse did not preserve MVC after fatiguing exercise. This was likely due to a lack of central fatigue induced by the exercise protocol (as %VA was unaffected) as the CHO rinse is thought to work through a central mechanism. PMID- 29334583 TI - Effects of Carnosine (Beta-Alanyl-L-Histidine) in an Experimental Rat Model of Acute Kidney Injury Due to Septic Shock. AB - BACKGROUND Acute kidney injury (AKI) secondary to sepsis is a major cause of morbidity and mortality in the human intensive care unit (ICU). Kidney function and the histological findings of AKI were investigated in an experimental rat model with sepsis induced by cecal ligation and puncture (CLP) and compared with and without treatment with carnosine (beta-alanyl-L-histidine). MATERIAL AND METHODS Twenty-four Sprague-Dawley rats were randomly divided into three groups consisting eight rats in each: Group 1 - control; Group 2 - septic shock; and Group 3 - septic shock treated with carnosine. Femoral vein and artery catheterization were applied in all rats. Rats in Group 1 underwent laparotomy and catheterization. The other two groups with septic shock underwent laparotomy, CLP, catheterization, and bladder cannulation. Rats in Group 3 received an intraperitoneal (IP) injection of 250 mg/kg carnosine, 60 min following CLP. Rats were monitored for blood pressure, pulse rate, and body temperature to assess responses to postoperative sepsis, and 10 mL/kg saline replacement was administered. Twenty-four hours following CLP, rats were sacrificed, and blood and renal tissue samples were collected. RESULTS Statistically significant improvements were observed in kidney function, tissue and serum malondialdehyde levels, routine blood values, biochemical indices, and in histopathological findings in rats in Group 3 who were treated with carnosine, compared with Group 2 exposed to septic shock without carnosine treatment. CONCLUSIONS Carnosine (beta-alanyl-L-histidine) has been shown to have beneficial effects in reducing AKI due to septic shock in a rat model of septicemia. PMID- 29334584 TI - In vitro and in vivo metabolite identification of a novel benzimidazole compound ZLN005 by LC-MS/MS. AB - RATIONALE: A novel benzimidazole compound ZLN005 was previously identified as a transcriptional activator of peroxisome proliferator-activated receptor gamma coactivator 1alpha (PGC-1alpha) in certain metabolic tissues. Upregulation of PGC 1alpha by ZLN005 has been shown to have beneficial effect in a diabetic mouse model and in a coronary artery disease model in vitro. ZLN005 could also have therapeutic potential in neurodegenerative diseases involving down-regulation of PGC-1alpha. Given the phenotypic efficacy of ZLN005 in several animal models of human disease, its metabolic profile was investigated to guide the development of novel therapeutics using ZLN005 as the lead compound. METHODS: ZLN005 was incubated with both rat and human liver microsomes and S9 fractions to identify in vitro metabolites. Urine from rats dosed with ZLN005 was used to identify in vivo metabolites. Extracted metabolites were analyzed by LC-MS/MS using a hybrid linear ion trap triple quadrupole mass spectrometer under full scan, enhanced product ion scan, neutral loss scan and precursor scan modes. Metabolites in plasma and brain of ZLN005-treated rats were also profiled using multiple reaction monitoring. RESULTS: Identified in vitro transformations of ZLN005 include mono- and dihydroxylation, further oxidation to carboxylic acids, and mono-O-glucuronide and sulfate conjugation to hydroxy ZLN005 as well as glutathione conjugation. Identified in vivo metabolites are mainly glucuronide and sulfate conjugates of dihydroxyl, carboxyl, and hydroxy acid of the parent compound. The parent compound as well as several major phase I metabolites were found in rat plasma and brain. CONCLUSIONS: Using both in vitro and in vivo methods, we elucidated the metabolic pathway of ZLN005. Phase I metabolites with hydroxylation and carboxylation, as well as phase II metabolites with glucuronide, sulfate and glutathione conjugation, were identified. PMID- 29334585 TI - Naturally occurring chrysophanol as matrix-assisted laser desorption ionization matrix for the analysis of a broad spectrum of analytes. PMID- 29334587 TI - Systolic blood pressure as a potential target of sigma-1 receptor agonist therapy. PMID- 29334586 TI - A Non-Heme Iron Photocatalyst for Light-Driven Aerobic Oxidation of Methanol. AB - Non-heme (L)FeIII and (L)FeIII -O-FeIII (L) complexes (L=1,1-di(pyridin-2-yl)-N,N bis(pyridin-2-ylmethyl)ethan-1-amine) underwent reduction under irradiation to the FeII state with concomitant oxidation of methanol to methanal, without the need for a secondary photosensitizer. Spectroscopic and DFT studies support a mechanism in which irradiation results in charge-transfer excitation of a FeIII MU-O-FeIII complex to generate [(L)FeIV =O]2+ (observed transiently during irradiation in acetonitrile), and an equivalent of (L)FeII . Under aerobic conditions, irradiation accelerates reoxidation from the FeII to the FeIII state with O2 , thus closing the cycle of methanol oxidation to methanal. PMID- 29334588 TI - Molecular Wire Effects in Phenyleneethynylene Oligomers: Surprising Insights. AB - The synthesis and quenching behavior of a series of water-soluble, carboxylate carrying phenyleneethynylene oligomers-monomer to tetramer-and their polymers are reported; their quenching behavior with different test analytes (paraquat, lead salts, mercury salts, picric acid, methylpyridinium iodide) in water were investigated, and the results were compared to that of the conjugated polymer. Significant but analyte-dependent enhancement effects were found. For monovalent quenchers, only the molecular wire effect applies, but for divalent quenchers multivalency effects are also important. PMID- 29334589 TI - Preparation and evaluation of a deoxycholic-calix[4]arene hybrid-type receptor as a chiral stationary phase for HPLC. AB - We report the synthesis and enantioseparation characteristics of two novel covalently immobilized deoxycholic acid derivatives as chiral stationary phases for high-performance liquid chromatography. In the structure of the first stationary phase, the 3-position of deoxycholic acid is substituted with a 3,5 dinitrophenylcarbamoyl group and the second one has an additional calix[4]arene attached to the carboxylic group of the deoxycholic acid. The chromatographic performance of the stationary phases was evaluated with enantioseparation of N (3,5-dinitrobenzoyl)-dl-leucine, N-(3,5-dinitrobenzoyl)-dl-valine, omeprazole, diclofop-methyl, dl-mandelic acid and (RS)-pregabalin. Comparison of the performance characteristics of the prepared chiral stationary phases provided evidence for the active involvement of the calix[4]arene unit in the chiral recognition process. Both stationary phases are chemically bonded to the silica and can be used in both normal-phase and reversed-phase modes. PMID- 29334590 TI - Highly Dispersible and Bioavailable Curcumin but not Native Curcumin Induces Brown-Like Adipocyte Formation in Mice. AB - SCOPE: The induction of brown-like adipocytes in white adipose tissue (WAT) is a potential therapeutic target for the treatment of obesity and metabolic disorders via the ability of these cells to release excess energy as heat in association with uncoupling protein 1. Some experimental trials suggest that curcumin (a yellow pigment from turmeric) has a suppressive effect on the accumulation of body fat. However, there is little evidence to show that curcumin induces the formation of brown-like adipocytes and the molecular mechanisms involved remain elusive. In addition, in most experimental trials, high doses of curcumin are administered. METHODS AND RESULTS: Highly dispersible and bioavailable curcumin (HC, i.e., 4.5 mg native curcumin kg-1 ) but not the same dose of native curcumin induces the formation of brown-like adipocytes in mouse inguinal WAT. Moreover, the formation of brown-like adipocytes induced by HC in inguinal WAT may be mediated by the production of local norepinephrine from accumulated alternatively activated macrophages. CONCLUSION: These novel findings suggest that curcumin increases energy expenditure by inducing the formation of brown-like adipocytes via a unique molecular mechanism. Importantly, they show that HC has significant bioactive effects in vivo at lower doses of curcumin. PMID- 29334591 TI - GTEx project maps wide range of normal human genetic variation: A unique catalog and follow-up effort associate variation with gene expression across dozens of body tissues. PMID- 29334593 TI - Reanalysis of clinical whole-exome sequence data yields multiple new diagnoses: A time-intensive but successful strategy highlights the benefits of data sharing and international collaborations. PMID- 29334594 TI - Thoracic aortic aneurysm in patients with loss of function Filamin A mutations: Clinical characterization, genetics, and recommendations. AB - The frequency and gender distribution of thoracic aortic aneurysm as a cardiovascular manifestation of loss-of-function (LOF) X-linked FilaminA (FLNA) mutations are not known. Furthermore, there is very limited cardiovascular morbidity or mortality data in children and adults. We analyzed cardiac data on the largest series of 114 patients with LOF FLNA mutations, both children and adults, with periventricular nodular heterotopia (PVNH), including 48 study patients and 66 literature patients, median age of 22.0 years (88 F, 26 M, range: 0-71 years), with 75 FLNA mutations observed in 80 families. Most (64.9%) subjects had a cardiac anomaly or vascular abnormality (80.8% of males and 60.2% of females). Thoracic aortic aneurysms or dilatation (TAA) were found in 18.4% (n = 21), and were associated with other structural cardiac malformations in 57.1% of patients, most commonly patent ductus arteriosus (PDA) and valvular abnormalities. TAA most frequently involved the aortic root and ascending aorta, and sinus of Valsalva aneurysms were present in one third of TAA patients. Six TAA patients (28.5%) required surgery (median age 37 yrs, range 13-41 yrs). TAA with its associated complications was also the only recorded cause of premature, non-accidental mortality in adults (2 M, 2 F). Two adult patients (1 F, 1 M, median 38.5 yrs), died of spontaneous aortic rupture at aortic dimensions smaller than current recommendations for surgery for other aortopathies. Data from this largest series of LOF FLNA mutation patients underscore the importance of serial follow-up to identify and manage these potentially devastating cardiovascular complications. PMID- 29334596 TI - The diversifying field of plant epigenetics. PMID- 29334597 TI - Monitoring global tree mortality patterns and trends. Report from the VW symposium 'Crossing scales and disciplines to identify global trends of tree mortality as indicators of forest health'. PMID- 29334599 TI - Sofia J. van Moorsel. PMID- 29334598 TI - Time to re-think fungal ecology? Fungal ecological niches are often prejudged. PMID- 29334600 TI - Probing promise versus performance in longer read fungal metabarcoding. PMID- 29334601 TI - Out of sight, but no longer out of mind - towards an increased recognition of the role of soil microbes in plant speciation. PMID- 29334602 TI - High-Dose Metformin Plus Temozolomide Shows Increased Anti-tumor Effects in Glioblastoma In Vitro and In Vivo Compared with Monotherapy. AB - PURPOSE: The purpose of the study is to investigate the efficacy of combined treatment with temozolomide (TMZ) and metformin for glioblastoma (GBM) in vitro and in vivo. Materials and Methods: We investigated the efficacy of combined treatment with TMZ and metformin using cell viability and apoptosis assays. A GBM orthotopic mice model was established by inoculation of 5*105 U87 cells and treatedwith metformin, TMZ, and the combination for 4weeks. Western blotting and immunofluorescence of tumor specimens were analyzed to investigate AMP-activated protein kinase (AMPK) and AKT pathway. RESULTS: The combination of TMZ and metformin showed higher cytotoxicity than single agents in U87, U251, and A172 cell lines. A combination of high-dose metformin and TMZ showed the highest apoptotic activity. The combination of TMZ and metformin enhanced AMPK phosphorylation and inhibited mammalian target of rapamycin phosphorylation, AKT phosphorylation, and p53 expression. The median survival of each group was 43.6, 55.2, 53.2, 65.2, and 71.3 days for control, metformin treatment (2 mg/25 g/day or 10 mg/25 g/day), TMZ treatment (15 mg/kg/day), combination treatment with low dose metformin and TMZ, and combination treatment with high-dose metformin and TMZ, respectively. Expression of fatty acid synthase (FASN) was significantly decreased in tumor specimens treated with metformin and TMZ. CONCLUSION: The combination of metformin and TMZ was superior to monotherapy using metformin or TMZ in terms of cell viability in vitro and survival in vivo. The combination of high-dose metformin and TMZ inhibited FASN expression in an orthotopic model. Inhibition of FASN might be a potential therapeutic target of GBM. PMID- 29334603 TI - Multicenter Phase II Study of Oxaliplatin, Irinotecan, and S-1 as First-line Treatment for Patients with Recurrent or Metastatic Biliary Tract Cancer. AB - PURPOSE: Although gemcitabine plus cisplatin has been established as the standard first-line chemotherapy for patients with advanced biliary tract cancer (BTC), overall prognosis remains poor. We investigated the efficacy of a novel triplet combination of oxaliplatin, irinotecan, and S-1 (OIS) for advanced BTC. Materials and Methods: Chemotherapy-naive patientswith histologically documented unresectable or metastatic BTC were eligible for this multicenter, single-arm phase II study. Patients received 65 mg/m2 oxaliplatin (day 1), 135 mg/m2 irinotecan (day 1), and 40 mg/m2 S-1 (twice a day, days 1-7) every 2 weeks. Primary endpoint was objective response rate. Targeted exome sequencing for biomarker analysis was performed using archival tissue. RESULTS: In total, 32 patients were enrolled between October 2015 and June 2016. Median age was 64 years (range, 40 to 76 years), with 24 (75%) male patients; 97% patients had metastatic or recurrent disease. Response rate was 50%, and median progression free survival and overall survival (OS) were 6.8 months (95% confidence interval [CI], 4.8 to 8.8) and 12.5 months (95% CI, 7.0 to 18.0), respectively. The most common grade 3-4 adverse events were neutropenia (32%), diarrhea (6%), and peripheral neuropathy (6%). TP53 and KRAS mutations were the most frequent genomic alterations (42% and 32%, respectively), and KRAS mutations showed a marginal relationship with worse OS (p=0.07). CONCLUSION: OIS combination chemotherapy was feasible and associated with favorable efficacy outcomes as a first-line treatment in patients with advanced BTC. Randomized studies are needed to compare OIS with gemcitabine plus cisplatin. PMID- 29334604 TI - Breast Conservation Therapy Versus Mastectomy in Patients with T1-2N1 Triple Negative Breast Cancer: Pooled Analysis of KROG 14-18 and 14-23. AB - PURPOSE: The aim of this study is to compare the treatment outcomes of breast conserving surgery (BCS) plus radiotherapy (RT) versus mastectomy for patients with pT1-2N1 triple-negative breast cancer (TNBC). Materials and Methods: Using two multicenter retrospective studies on breast cancer, a pooled analysis was performed among 320 patients with pT1-2N1 TNBC. All patients who underwent BCS (n=212) receivedwhole breast RTwith orwithoutregional nodal RT,while nonewho underwent mastectomy (n=108)received it. All patients received taxane-based adjuvant chemotherapy. The median follow-up periods were 65 months in the BCS+RT group, and 74 months in the mastectomy group. RESULTS: The median age of all patients was 48 years (range, 24 to 70 years). Mastectomy group had more patients with multiple tumors (p < 0.001), no lymphovascular invasion (p=0.001), higher number of involved lymph node (p=0.028), and higher nodal ratio >= 0.2 (p=0.037). Other characteristics were not significantly different between the two groups. The 5-year locoregionalrecurrence-free, disease-free, and overall survivalrates of BCS+RT group versus mastectomy group were 94.6% versus 87.7%, 89.5% versus 80.4%, and 95.0% versus 87.8%, respectively, and the differences were statistically significant after adjusting for covariates (p=0.010, p=0.006, and p=0.005, respectively). CONCLUSION: In pT1-2N1 TNBC, breast conservation therapy achieved better locoregional recurrencefree, disease-free, and overall survival rates compared with mastectomy. PMID- 29334605 TI - Induction Chemotherapy Plus Concurrent Chemoradiotherapy Versus Concurrent Chemoradiotherapy Alone in Locoregionally Advanced Nasopharyngeal Carcinoma in Children and Adolescents: A Matched Cohort Analysis. AB - PURPOSE: The purpose of this study was to evaluate the long-term clinical outcome and toxicity of induction chemotherapy (IC) followed by concomitant chemoradiotherapy (CCRT) compared with CCRT alone for the treatment of children and adolescent locoregionally advanced nasopharyngeal carcinoma (LACANPC). Materials and Methods: A total of 194 locoregionally advanced nasopharyngeal carcinoma patients youngerthan 21 years who received CCRT with or without IC before were included in the study population. Overall survival (OS) rate, progression-free survival (PFS) rate, locoregional recurrence-free survival (LRFS) rate, and distant metastasis-free survival (DMFS) rate were assessed by the Kaplan-Meier method and a log-rank test. Treatment toxicities were clarified and compared between two groups. RESULTS: One hundred and thiry of 194 patients received IC+CCRT. Patients who were younger and with more advanced TNM stage were more likely to receive IC+CCRT and intensive modulated radiotherapy. The addition of IC before CCRT failed to improve survival significantly. The matched analysis identified 43 well-balanced patients in both two groups. With a median follow-up of 51.5 months, no differences were found between the IC+CCRT group and the CCRT group in 5-year OS (83.7% vs. 74.6%, p=0.153), PFS (79.2% vs. 73.4%, p=0.355), LRFS (97.7% vs. 88.2%, p=0.083), and DMFS (81.6% vs. 81.6%, p=0.860). N3 was an independent prognostic factor predicting poorer OS, PFS, and DMFS. The addition of IC was associated with increased rates of grade 3 to 4 neutropenia. CONCLUSION: This study failed to demonstrate that adding IC before CCRT could provide a significant additional survival benefit for LACANPC patients. Further investigations are warranted. PMID- 29334606 TI - The Association of Acquired T790M Mutation with Clinical Characteristics after Resistance to First-Line Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitor in Lung Adenocarcinoma. AB - PURPOSE: The main objective of this study was to investigate the relationship among the clinical characteristics and the frequency of T790M mutation in advanced epidermal growth factor receptor (EGFR)-mutant lung adenocarcinoma patients with acquired resistance after firstline EGFR-tyrosine kinase inhibitor (TKI) treatment. Materials and Methods: We enrolled EGFR-mutant stage IIIB-IV lung adenocarcinoma patients, who had progressed to prior EGFR-TKI therapy, and evaluated their rebiopsy EGFR mutation status. RESULTS: A total of 205 patients were enrolled for analysis. The overall T790M mutation rate of rebiopsy was 46.3%. The T790M mutation rates among patients with exon 19 deletion mutation, exon 21 L858R point mutation, and other mutations were 55.0%, 37.3%, and 27.3%, respectively. Baseline exon 19 deletion was associated with a significantly higher frequency of T790M mutation (adjusted odds ratio, 2.14; 95% confidence interval [CI], 1.20 to 3.83; p=0.010). In the exon 19 deletion subgroup, there was a greater prevalence of T790M mutation than other exon 19 deletion subtypes in patients with the Del E746-A750 mutation (61.6% vs. 40.6%; odds ratio, 2.35; 95% CI, 1.01 to 5.49; p=0.049). The progression-free survival (PFS) of first-line TKI treatment > 11 months was also associated with a higher T790M mutation rate (54.1% vs. 39.3%; adjusted odds ratio, 1.82; 95% CI, 1.02 to 3.25; p=0.044). Patients who underwent rebiopsy at metastatic sites had more chance to harbor T790M mutation (52.6% vs. 33.8%; adjusted odds ratio, 1.97; 95% CI, 1.06 to 3.67; p=0.032). CONCLUSION: PFS of first-line EGFR-TKI, rebiopsy site, EGFR exon 19 deletion and its subtype Del E746- A750 mutation are associated with the frequency of T790M mutation. PMID- 29334607 TI - Geographical Variations and Trends in Major Cancer Incidences throughout Korea during 1999-2013. AB - PURPOSE: We aimed to describe the temporal trends and district-level geographical variations in cancer incidences throughout Korea during 1999-2013. Materials and Methods: Data were obtained from the Korean National Cancer Incidence Database. We calculated the age-standardized cumulative cancerincidences according to sex and geographicalregion (metropolitan cities, provinces, and districts) for three 5-year periods (1999-2003, 2004- 2008, and 2009-2013). Each quintile interval contained the same number of regions. Disease maps were created to visualize regional differences in the cancer incidences. RESULTS: Substantial differences in cancer incidences were observed according to district and cancer type. The largest variations between geographical regions were found for thyroid cancer among both men and women. There was little variation in the incidences of stomach, colorectal, and lung cancer according to geographical region. Substantially elevated incidences of specific cancers were observed in Jeollanam do (thyroid); Daejeon (colorectum); Jeollanam-do, Gyeongsangbuk-do, and Chungcheongbuk-do (lung); Seocho-gu, Gangnam-gu and Seongnam, Bundang-gu (breast and prostate); Chungcheong and Gyeongsang provinces (stomach); Ulleung-gun and the southern districts of Gyeongsangnam-do and Jeollanam-do (liver); and along the Nakdonggang River (gallbladder and biliary tract). CONCLUSION: Mapping regional cancer incidences in Korea allowed us to compare the results according to geographical region. Our results may facilitate the development of infrastructure for systematic cancerincidence monitoring,which could promote the planning and implementation of region-specific cancer management programs. PMID- 29334608 TI - Factors Associated with Prolonged Patient-Attributable Delay in the Diagnosis of Colorectal Cancer. AB - PURPOSE: The delayed diagnosis of colorectal cancer (CRC) may be attributable to sociodemographic characteristics, to aspects of tumour histopathology or to the functioning of the health system. We seek to determine which of these factors most influences prolonged patient-attributable delay (PPAD) in the diagnosis and treatment of CRC. Materials and Methods: A prospective, multicentre observational study was conducted in 22 Spanish hospitals. In total, 1,785 patients were recruited to the study between 2010 and 2012 and underwent elective or urgent surgery. PPAD is considered to occur when the time elapsed between a patient presenting the symptom and him/her seeking attention from the primary care physician or hospital emergency department exceeds 180 days. A bivariate analysis was performed to assess differences in variables segmented by tumour location and patient delay. Multivariate logistic regression analysis was performed on the outcome variable, PPAD. RESULTS: The rate of PPAD among this population was 12.1%. PPAD was significantly associated with altered bowel rhythm (odds ratio [OR], 1.36; 95% confidence interval [CI], 1.02 to 1.83) and with adenocarcinoma histology, in comparison with mucinous adenocarcinoma (OR, 2.03; 95% CI, 1.11 to 3.71). Other sociocultural factors and clinicopathological features were not independent predictors of PPAD. CONCLUSION: Many patients do not consider altered bowel rhythm an alarming symptom, warranting a visit to the doctor. PPAD could be reduced by improving health education, raising awareness of CRC-related symptoms. PMID- 29334609 TI - Score for the Survival Probability in Metastasis Breast Cancer: A Nomogram-Based Risk Assessment Model. AB - PURPOSE: Survival of metastatic breast cancer (MBC) patient remains unknown and varies greatly from person to person. Thus, we aimed to construct a nomogram to quantify the survival probability of patients with MBC. Materials and Methods: We had included 793 MBC patients and calculated trends of case fatality rate by Kaplan-Meier method and joinpoint regression. Six hundred thirty-four patients with MBC between January 2004 and July 2011 and 159 patients with MBC between August 2011 and July 2013 were assigned to training cohort and internal validation cohort, respectively. We constructed the nomogram based on the results of univariable and multivariable Cox regression analyses in the training cohort and validated the nomogram in the validation cohort. Concordance index and calibration curves were used to assess the effectiveness of nomogram. RESULTS: Case fatality rate of MBC was increasing (annual percentage change [APC], 21.6; 95% confidence interval [CI], 1.0 to 46.3; p < 0.05) in the first 18 months and then decreased (APC, -4.5; 95% CI, -8.2 to -0.7; p < 0.05). Metastasis-free interval, age, metastasis location, and hormone receptor status were independent prognostic factors and were included in the nomogram, which had a concordance index of 0.69 in the training cohort and 0.67 in the validation cohort. Calibration curves indicated good consistency between the two cohorts at 1 and 3 years. CONCLUSION: In conclusion, the fatality risk of MBC was increasing and reached the summit between 13th and 18th month afterthe detection of MBC. We have developed and validated a nomogram to predict the 1- and 3-year survival probability in MBC. PMID- 29334610 TI - Phase II Study of Dovitinib in Patients with Castration-Resistant Prostate Cancer (KCSG-GU11-05). AB - PURPOSE: Fibroblast growth factor (FGF) signals are important in carcinogenesis and progression of prostate cancer. Dovitinib is an oral, pan-class inhibitor of vascular endothelial growth factor receptor (VEGFR), platelet-derived growth factor receptor, and fibroblast growth factor receptor (FGFR). We evaluated the efficacy and toxicity of dovitinib in men with metastatic castration resistant prostate cancer (mCRPC). Materials and Methods: This study was a single-arm, phase II, open-label, multicenter trial of dovitinib 500 mg/day (5-days-on/2-days off schedule). The primary endpointwas 16-week progression-free survival (PFS). Secondary endpoints were overall survival (OS), toxicity and prostate-specific antigen (PSA) response rate. Biomarker analyses for VEGFR2, FGF23, and FGFR2 using multiplex enzyme-linked immunosorbent assay was performed. RESULTS: Forty four men were accrued from 11 hospitals. Eighty percent were post-docetaxel. Median PSA was 100 ng/dL, median age was 69, 82% had bone metastases, and 23% had liver metastases. Median cycles of dovitinibwas 2 (range, 0 to 33). Median PFSwas 3.67 months (95% confidence interval [CI], 1.36 to 5.98) and median OS was 13.70 months (95% CI, 0 to 27.41). Chemotherapy-naive patients had longer PFS (17.90 months; 95% CI, 9.23 to 28.57) compared with docetaxel-treated patients (2.07 months; 95% CI, 1.73 to 2.41; p=0.001) and the patients with high serum VEGFR2 level over median level (7,800 pg/mL) showed longer PFS compared with others (6.03 months [95% CI, 4.26 to 7.80] vs. 1.97 months [95% CI, 1.79 to 2.15], p=0.023). Grade 3 related adverse events were seen in 40.9% of patients. Grade 1 2 nausea, diarrhea, fatigue, anorexia, and all grade thrombocytopenia are common. CONCLUSION: Dovitinib showed modest antitumor activity with manageable toxicities in men with mCRPC. Especially, patients who were chemo-naive benefitted from dovitinib. PMID- 29334611 TI - Understanding Complex Tribofilms by Means of H3BO3-B2O3 Model Glasses. AB - The discovery of the spontaneous reaction of boric oxides with moisture in the air to form lubricious H3BO3 films has led to great interest in the tribology of boron compounds in general. Despite this, a study of the growth kinetics of H3BO3 on a B2O3 substrate under controlled relative humidity (RH) has not yet been reported in the literature. Here, we describe the tribological properties of H3BO3-B2O3 glass systems after aging under controlled RH over different lengths of time. A series of tribological tests has been performed applying a normal load of 15 N, at both room temperature and 100 degrees C in YUBASE 4 oil. In addition, the cause of H3BO3 film failure under high-pressure and high temperature conditions has been studied to find out whether the temperature, the tribostress, or both influence the removal of the lubricious film from the contact points. The following techniques were exploited: confocal Raman spectroscopy to characterize the structure and chemical nature of the glass systems, environmental scanning electron microscopy to examine the morphology of the H3BO3 films developed, atomic force microscopy to monitor changes in roughness as a consequence of the air exposure, focused-ion-beam scanning electron microscopy to measure the average thickness of the H3BO3 films grown over various times on B2O3 glass substrates and to reveal the morphology of the sample in the vertical section, tribological tests to shed light on the system's lubricating properties, and finally small-area X-ray photoelectron spectroscopy to investigate the composition of the transfer film formed on the steel ball while tribotesting. PMID- 29334612 TI - TEMPO-Oxidized Bacterial Cellulose Pellicle with Silver Nanoparticles for Wound Dressing. AB - Biocompatible bacterial cellulose pellicle (BCP) is a candidate for biomedical material such as wound dressing. However, due to lack of antibacterial activity, to grant BCP with the property is crucial for its biomedical application. In the present study, BCP was modified by 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO)-mediated oxidation using TEMPO/NaClO/NaBr system at pH 10 to form TEMPO oxidized BCP (TOBCP) with anionic C6 carboxylate groups. The TOBCP was subsequently ion-exchanged in AgNO3 solution and silver nanoparticles (AgNP) with diameter of ~16.5 nm were in situ synthesized on TOBC nanofiber surfaces by thermal reduction without using a reducing agent. Field emission scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectra, Fourier transform infrared spectroscopy, and thermogravimetric analysis were carried out to confirm morphology and structure of the pellicles with AgNP. The AgNP continuously released Ag+ with a rate of 12.2%/day at 37 degrees C in 3 days. The TOBCP/AgNP exhibited high biocompatibility according to the result of in vitro cytotoxicity test (cell viability >95% after 48 h of incubation) and showed significant antibacterial activities of 100% and 99.2% against E. coli and S. aureus, respectively. Hence, the highly biocompatible and highly antibacterial TOBCP/AgNP prepared in the present study is a promising candidate for wound dressing. PMID- 29334613 TI - Reduced miR-144-3p expression in serum and bone mediates osteoporosis pathogenesis by targeting RANK. AB - Osteoblasts and osteoclasts are responsible for the formation and resorption of bone, respectively. An imbalance between these two processes results in a disease called osteoporosis, in which a decreased level of bone strength increases the risk of a bone fracture. MicroRNAs (miRNAs) are small non-coding RNA molecules of 18-25 nucleotides that have been previously shown to control bone metabolism by regulating osteoblast and osteoclast differentiation. In this study, we detected the expression pattern of 10 miRNAs in serum samples from patients with osteoporosis, and identified the altered expression of 6 miRNAs by comparison with patients without osteoporosis. We selected miR-144-3p for further investigation, and showed that it regulates osteoclastogenesis by targeting RANK, and that it is conserved amongst vertebrates. Disrupted expression of miR-144-3p in CD14+ peripheral blood mononuclear cells changed TRAP activity and the osteoclast-specific genes TRAP, cathepsin K (CTSK), and NFATC. TRAP staining, CCK 8, and flow cytometry analyses revealed that miR-144-3p also affects osteoclast formation, proliferation, and apoptosis. Together, these results indicate that miR-144-3p critically mediates bone homeostasis, and thus, represents a promising novel therapeutic candidate for the treatment of this disease. PMID- 29334614 TI - Perceptions of exercise screening among older adults. AB - Prephysical activity screening is important for older adults' participating in physical activity. Unfortunately, many older adults face barriers to exercise participation and thus, may not complete proper physical activity screening. The purpose of this project was to conduct a thematic analysis of perceptions and experiences of community-dwelling older adults regarding prephysical activity screening (i.e., Get Active Questionnaire (GAQ) and a standardized exercise stress test). A convenience sample of adults (male n = 58, female n = 54) aged 75 +/- 7 years living in the City of London, Ontario, Canada, was used. Participants completed a treadmill stress test and the GAQ at a research laboratory for community-based referrals. One week later, participants completed the GAQ again and were asked questions by a research assistant about their perceptions of the screening process. Thematic analysis of the responses was conducted. The results indicated that older adults view physical activity screening as acceptable, but not always necessary. Also, the experiences expressed by this sample of older adults indicated that physical activity screening can contribute to continued confidence (through reassurance) and can contribute to increased motivation (through yearly fitness results) in exercise participation. In conclusion, older adults may perceive screening as supportive in exercise adoption, if screening is simple, convenient, and supports older adults' motivation and confidence to exercise. PMID- 29334615 TI - Hemodynamic and metabolic responses to self-paced and ramp-graded exercise testing protocols. AB - Recent examinations have shown lower maximal oxygen consumption during traditional ramp (RAMP) compared with self-paced (SPV) graded exercise testing (GXT) attributed to differences in cardiac output. The current study examined the differences in hemodynamic and metabolic responses between RAMP and SPV during treadmill exercise. Sixteen recreationally trained men (aged23.7 +/- 3.0 years) completed 2 separate treadmill GXT protocols. SPV consisted of five 2-min stages (10 min total) of increasing speed clamped by the Borg RPE6-20 scale. RAMP increased speed by 0.16 km/h every 15 s until volitional exhaustion. All testing was performed at 3% incline. Oxygen consumption was measured via indirect calorimetry; hemodynamic function was measured via thoracic impedance and blood lactate (BLa-) was measured via portable lactate analyzer. Differences between SPV and RAMP protocols were analyzed as group means by using paired-samples t tests (R Core Team 2017). Maximal values for SPV and RAMP were similar (p > 0.05) for oxygen uptake (47.1 +/- 3.4 vs. 47.4 +/- 3.4 mL.kg-1.min-1), heart rate (198 +/- 5 vs. 200 +/- 6 beats.min-1), ventilation (158.8 +/- 20.7 vs. 159.3 +/- 19.0 L.min-1), cardiac output (26.9 +/- 5.5 vs. 27.9 +/- 4.2 L.min-1), stroke volume (SV) (145.9 +/- 29.2 vs. 149.8 +/- 25.3 mL.beat-1), arteriovenous oxygen difference (18.5 +/- 3.1 vs. 19.7 +/- 3.1 mL.dL-1), ventilatory threshold (VT) (78.2 +/- 7.2 vs. 79.0% +/- 7.6%), and peak BLa- (11.7 +/- 2.3 vs. 11.5 +/- 2.4 mmol.L-1), respectively. In conclusion, SPV elicits similar maximal hemodynamic responses in comparison to RAMP; however, SV kinetics exhibited unique characteristics based on protocol. These results support SPV as a feasible GXT protocol to identify useful fitness parameters (maximal oxygen uptake, oxygen uptake kinetics, and VT). PMID- 29334616 TI - Preoperative Breast Magnetic Resonance Imaging Use by Breast Density and Family History of Breast Cancer. AB - BACKGROUND: Use of preoperative breast magnetic resonance imaging (MRI) among women with a new breast cancer has increased over the past decade. MRI use is more frequent in younger women and those with lobular carcinoma, but associations with breast density and family history of breast cancer are unknown. MATERIALS AND METHODS: Data for 3075 women ages >65 years with stage 0-III breast cancer who underwent breast conserving surgery or mastectomy from 2005 to 2010 in the Breast Cancer Surveillance Consortium were linked to administrative claims data to assess associations of preoperative MRI use with mammographic breast density and first-degree family history of breast cancer. Multivariable logistic regression estimated adjusted odds ratios (OR) and 95% confidence intervals (95% CI) for the association of MRI use with breast density and family history, adjusting for woman and tumor characteristics. RESULTS: Overall, preoperative MRI use was 16.4%. The proportion of women receiving breast MRI was similar by breast density (17.6% dense, 16.9% nondense) and family history (17.1% with family history, 16.5% without family history). After adjusting for potential confounders, we found no difference in preoperative MRI use by breast density (OR = 0.95 for dense vs. nondense, 95% CI: 0.73-1.22) or family history (OR = 0.99 for family history vs. none, 95% CI: 0.73-1.32). CONCLUSIONS: Among women aged >65 years with breast cancer, having dense breasts or a first-degree relative with breast cancer was not associated with greater preoperative MRI use. This utilization is in keeping with lack of evidence that MRI has higher yield of malignancy in these subgroups. PMID- 29334617 TI - Chains of risk for alcohol use disorder: Mediators of exposure to neighborhood deprivation in early and middle childhood. AB - Our goal was to test a cascade model to identify developmental pathways, or chains of risk, from neighborhood deprivation in childhood to alcohol use disorder (AUD) in young adulthood. Using Swedish general population data, we examined whether exposure to neighborhood deprivation during early and middle childhood was associated with indicators of social functioning in adolescence and emerging adulthood, and whether these were predictive of AUD. Structural equation models showed exposure to neighborhood deprivation was associated with lower school achievement during adolescence, poor social functioning during emerging adulthood, and the development of AUD for both males and females. Understanding longitudinal pathways from early exposure to adverse environments to later AUD can inform prevention and intervention efforts. PMID- 29334619 TI - Comparisons between a new point kernel-based scheme and the infinite plane source assumption method for radiation calculation of deposited airborne radionuclides from nuclear power plants. AB - Radiation from the deposited radionuclides is indispensable information for environmental impact assessment of nuclear power plants and emergency management during nuclear accidents. Ground shine estimation is related to multiple physical processes, including atmospheric dispersion, deposition, soil and air radiation shielding. It still remains unclear that whether the normally adopted "infinite plane" source assumption for the ground shine calculation is accurate enough, especially for the area with highly heterogeneous deposition distribution near the release point. In this study, a new ground shine calculation scheme, which accounts for both the spatial deposition distribution and the properties of air and soil layers, is developed based on point kernel method. Two sets of "detector centered" grids are proposed and optimized for both the deposition and radiation calculations to better simulate the results measured by the detectors, which will be beneficial for the applications such as source term estimation. The evaluation against the available data of Monte Carlo methods in the literature indicates that the errors of the new scheme are within 5% for the key radionuclides in nuclear accidents. The comparisons between the new scheme and "infinite plane" assumption indicate that the assumption is tenable (relative errors within 20%) for the area located 1 km away from the release source. Within 1 km range, the assumption mainly causes errors for wet deposition and the errors are independent of rain intensities. The results suggest that the new scheme should be adopted if the detectors are within 1 km from the source under the stable atmosphere (classes E and F), or the detectors are within 500 m under slightly unstable (class C) or neutral (class D) atmosphere. Otherwise, the infinite plane assumption is reasonable since the relative errors induced by this assumption are within 20%. The results here are only based on theoretical investigations. They should be further thoroughly evaluated with real measurements in the future. PMID- 29334618 TI - Exploring masculinities, sexual health and wellbeing across areas of high deprivation in Scotland: The depth of the challenge to improve understandings and practices. AB - Within and across areas of high deprivation, we explored constructions of masculinity in relation to sexual health and wellbeing, in what we believe to be the first UK study to take this approach. Our sample of 116 heterosexual men and women age 18-40 years took part in individual semi-structured interviews (n = 35) and focus group discussions (n = 18), across areas in Scotland. Drawing on a socio-ecological framework, findings revealed experience in places matter, with gender practices rooted in a domestically violent milieu, where localised, socio cultural influences offered limited opportunities for more egalitarian performances of masculinity. We discuss the depths of the challenge in transforming masculinities in relation to sexual health and wellbeing in such communities. PMID- 29334620 TI - Evaluation of abundance of artificial radionuclides in food products in South Korea and sources. AB - Food samples are collected nationwide from January 2016 to February 2017 and their contents of artificial radionuclides are measured to address the growing concerns regarding the radioactive contamination of food products in Korea. Specifically, 900 food samples are collected for this study and their contents of representative artificial radionuclides 134Cs, 137Cs, 239,240Pu, and 90Sr are analyzed. The analysis shows that the activity concentrations of 137Cs in fish range from minimum detectable activity (MDA) to 340 mBq/kg of fresh weight. The concentration factor (CF) determined for 137Cs as a measure of its bioavailability is calculated to be ca. 74 and found to be very similar to that (100) recommended by the International Atomic Energy Agency. With an MDA of <0.221 mBq/kg, the results reveal that 239,240Pu values in fish are below the MDA. The activity concentrations of 137Cs and 90Sr are lower than the MDA in both shellfish and seaweed, while the activity concentrations of 239,240Pu in shellfish range from 0.26 to 2.18 mBq/kg, and for seaweed samples range from 2.07 to 3.38 mBq/kg. The atom ratios of 240Pu/239Pu in shellfish caught at the Korean coast vary from 0.209 to 0.237, with a mean of 0.227. The higher 240Pu/239Pu atom ratio determined in shellfish is thought to be caused by the plutonium transported from the Pacific Proving Grounds rather than other sources such as the Fukushima nuclear power plant accident. The activity concentrations of 137Cs in mushrooms are found to vary from 1.0 to 21.4 Bq/kg, with the highest concentrations observed in the Oak (shiitake) and Sarcodon asparatus. 134Cs is detected in three mushroom specimens collected from Jeju Island and about 3-3.6% of 137Cs present in the wild mushrooms native to the Jeju Island are introduced as a result of the Fukushima nuclear plant accident. The annual effective doses of 137Cs received through consumption of mushrooms and fish are 2.0 * 10-4 mSv yr 1 and 3.9 * 10-5 mSv yr-1, and those values are negligible compared to the annual effective doses limit of 1 mSv yr-1. PMID- 29334621 TI - Taurine as a green bio-organic catalyst for the preparation of bio-active barbituric and thiobarbituric acid derivatives in water media. AB - Taurine, a beta-amino acid that is abundantly available in the tissues of human and animals, is efficiently used as a green bio-organic catalyst in the preparation of some of the biologically active barbituric and thiobarbituric acid derivatives. In the presence of taurine, 5-Arylidene (thio) barbituric acid derivatives were prepared via Knovenagel reaction between aldehydes and (thio)barbituric acid. Using this reagent also pyrano[2,3-d]pyrimidinone(thione) derivatives were synthesized through a three-component reaction between aldehydes, (thio)barbituric and malononitrile. Both reactions are performed in water with good to excellent yields during acceptable reaction times. No organic solvent was used during reaction or separation steps and no extra-purification was exerted. Meanwhile, reusability of taurine was easy and noticeably high. PMID- 29334622 TI - Pyridazinone hybrids: Design, synthesis and evaluation as potential anticonvulsant agents. AB - A series of new hybrid benzothiazole containing pyridazinones derivatives were designed and synthesized fulfilling all the pharmacophoric requirements essential for the anticonvulsant activity. In-silico and in vitro studies revealed that some of these hybrid derivatives demonstrated admirable GABA AT inhibitory activity. An attempt has also been made to validate the results of in vitro GABA AT inhibition of the most potent compound SPS-5F (IC50 9.10 MUM) through in vivo anticonvulsant screening. Compound SPS-5F administration significantly increases the whole brain GABA level, might be through the inhibition of GABA AT enzyme. PMID- 29334623 TI - An alternative carrier solvent for fingermark enhancement reagents. AB - Solstice(r) Performance Fluid (PF), trans-1-chloro-3,3,3-trifluoropropene, is presented as an alternative to HFE7100, methoxy-nonafluorobutane, as a carrier solvent in a number of chemical formulations used for the visualisation of latent fingermarks. The supply of HFE7100 may be at risk due to a recent European Union regulation to control global warming. Laboratory trials using split depletions and a pseudo-operational trial of 1000 porous samples have shown that Solstice(r) PF is a viable alternative to HFE7100 for the chemical formulations of ninhydrin and 1,2-indanedione. Other preliminary trials have also indicated that Solstice(r) PF can be used as a carrier solvent for the zinc toning of marks found using ninhydrin as well as the alpha-naphtholflavone fixative solution for iodine developed marks. Results from the pseudo-operational trial demonstrate that the number of marks detected by ninhydrin and 1,2-indanedione formulations for each carrier solvent is comparable. When compared to HFE7100, advantages of Solstice(r) PF include a very low global warming potential and atmospheric lifetime in addition to a higher wetting index and lower costs. This study also provides a validation study that supports the potential replacement of DFO with 1,2-indanedione. PMID- 29334624 TI - Adequate vitamin D3 skin synthesis versus erythema risk in the Northern Hemisphere midlatitudes. AB - Health-optimum-exposure index (HOEI) is proposed to assess if the prescribed amount of vitamin D3 (target value) could be synthesized in the human skin without erythema appearance. It is defined as the ratio between the vitamin D3 quantity received during the maximum allowed outdoor exposure without erythema risk and the target value. Sunbathing is safe for HOEI>1 and 1/HOEI represents a part of minimal erythema dose (MED) necessary to obtain the target value. We examine the following targets: a vitamin D3 quantity equivalent to 1000 IU vitamin D3 taken orally, and an optimal vitamin D3 quantity defined by Krzyscin et al. (2016). The biologically weighted (previtamin D3 and erythemal) doses from the Northern Hemisphere midlatitudinal stations are analyzed to find HOEI dependence on personal and meteorological factors. HOEI depends mostly on the exposed skin area, person's age, and sun elevation at noon but not on the Fitzpatrick skin phototype. We found that only young adults (<21 yr) could safely obtain vitamin D3 quantity, which is equivalent to 1000 IU taken orally, almost throughout the whole year. Duration of such exposures appears <1 h only in the warm subperiods of the year (April-September) for a person with minimal erythema dose of 330 J m-2. Exposing larger part of the body (~30%) enables the oldest persons (>59 yr) to reach 1000 IU target during warm days in spring and summer. The optimal daily vitamin D3 quantity could only be synthesized only by young adults for about 40-60% of days in the May-August period if they expose at least 1/3 part of their body surface area. Vitamin D3 supplementation seems to be necessary over the whole year for the oldest persons with daily dosage of ~2000 IU but reduced to ~1000 IU in summer for sunseekers exposing significant part of the body. PMID- 29334625 TI - Light quality affects flavonoid production and related gene expression in Cyclocarya paliurus. AB - Understanding the responses of plant growth and secondary metabolites to differential light conditions is very important to optimize cultivation conditions of medicinal woody plants. As a highly valued and multiple function tree species, Cyclocarya paliurus is planted and managed for timber production and medical use. In this study, LED-based light including white light (WL), blue light (BL), red light (RL), and green light (GL) were used to affect leaf biomass production, flavonoid accumulation and related gene expression of one-year C. paliurus seedlings in controlled environments. After the treatments of 60 days, the highest leaf biomass appeared in the treatment of WL, while the lowest leaf biomass was found under GL. Compared to WL, the total flavonoid contents of C. paliurus leaves were significantly higher in BL, RL, and GL, but the highest values of selected flavonoids (kaempferol, isoquercitrin and quercetin) were observed under BL. Furthermore, the greatest yields of total and selected flavonoids in C. paliurus leaves per seedling were also achieved under BL, indicating that blue light was effective for inducing the production of flavonoids in C. paliurus leaves. Pearson's correlation analysis showed that there were significantly positive correlations between leaf flavonoid content and relative gene expression of key enzymes (phenylalanine ammonia lyase, PAL; 4 coumaroyl CoA-ligase, 4CL; and chalcone synthase, CHS) in the upstream, which converting phenylalanine into the flavonoid skeleton of tetrahydroxy chalcone. It is concluded that manipulating light quality may be potential mean to achieve the highest yields of flavonoids in C. paliurus cultivation, however this needs to be further verified by more field trials. PMID- 29334626 TI - Parenting predicts Strange Situation cortisol reactivity among children adopted internationally. AB - The functioning of the hypothalamic pituitary adrenal (HPA) axis can be altered by adverse early experiences. Recent studies indicate that children who were adopted internationally after experiencing early institutional rearing and unstable caregiving exhibit blunted HPA reactivity to stressful situations. The present study examined whether caregiving experiences post-adoption further modulate children's HPA responses to stress. Parental sensitivity during naturalistic parent-child play interactions was assessed for 66 children (M age = 17.3 months, SD = 4.6) within a year of being adopted internationally. Approximately 8 months later, children's salivary cortisol levels were measured immediately before as well as 15 and 30 min after a series of brief separations from the mother in an unfamiliar laboratory setting. Latent growth curve modeling indicated that experiencing more parental sensitivity predicted increased cortisol reactivity to the stressor. Although half the families received an intervention designed to improve parental sensitivity, the intervention did not significantly alter children's cortisol outcomes. These findings suggest that post-adoption parental sensitivity may help normalize the HPA response to stress among children adopted internationally. PMID- 29334627 TI - Testosterone, DHEA and DHEA-S in patients with schizophrenia: A systematic review and meta-analysis. AB - Neuroactive steroids, including testosterone, dehydroepiandrosterone (DHEA) and its sulfate (DHEA-S) might play an important role in the pathophysiology of schizophrenia. Therefore, we performed a systematic review and meta-analysis of studies comparing the levels of testosterone, DHEA and DHEA-S in patients with schizophrenia and healthy controls. We searched electronic databases from their inception until Oct 29, 2017. Effect size (ES) estimates were calculated as Hedges' g. Data analysis was performed using random-effects models. Our analysis included 34 eligible studies, representing 1742 patients and 1604 controls. Main analysis revealed elevated DHEA-S levels in the whole group of patients (ES = 0.75, 95%CI: 0.23-1.28, p = 0.005). In subgroup analyses, patients with first episode psychosis (FEP) had significantly higher levels of free testosterone (ES = 1.21, 95%CI: 0.30-2.12, p = 0.009) and DHEA-S (ES = 1.19, 95%CI: 0.66-1.71, p < 0.001). Acutely relapsed schizophrenia patients presented significantly higher levels of total testosterone (ES = 0.50, 95%CI: 0.21-0.70, p < 0.001). Total testosterone levels were also elevated in stable multi-episode schizophrenia (sMES) females (ES = 0.56, 95%CI: 0.33-0.80, p < 0.001) and reduced in sMES males (ES = -0.62, 95%CI: -1.07 to 0.18, p = 0.006). Increased levels of biologically active, free testosterone and DHEA-S in FEP suggest that these alterations might appear as a response to stress that becomes blunted during subsequent exacerbations of schizophrenia. Differential changes in total testosterone levels in male and female sMES patients might represent medication effects related to prolactin-releasing effects of antipsychotics. PMID- 29334628 TI - Production and characterization of human induced pluripotent stem cells (iPSCs) from Joubert Syndrome: CSSi001-A (2850). AB - Joubert Syndrome (JS) is a rare autosomal recessive or X-linked condition characterized by a peculiar cerebellar malformation, known as the molar tooth sign (MTS), associated with other neurological phenotypes and multiorgan involvement. JS is a ciliopathy, a spectrum of disorders whose causative genes encode proteins involved in the primary cilium apparatus. In order to elucidate ciliopathy-associated molecular mechanisms, human induced pluripotent stem cells (hiPSCs) were derived from a patient affected by JS carrying a homozygous missense mutation in the AHI1 gene (p.H896R) that encodes a protein named Jouberin. PMID- 29334629 TI - Generation of a human induced pluripotent stem cell line (CSC-42) from a patient with sporadic form of Parkinson's disease. AB - Skin fibroblasts were collected from a 44-year-old patient with sporadic case of Parkinson's disease (PD). The non-integrating Sendai virus vector encoding OCT3/4, SOX2, c-MYC and KLF4 was used to reprogram fibroblasts into induced pluripotent stem cells (iPSCs). Generated iPSCs had normal karyotypes, expressed common stem cell markers, and were capable of differentiating into all three germ layers. Generated line could be used for PD modeling to understand the mechanisms that influence the disorder. PMID- 29334630 TI - Generation of an integration-free induced pluripotent stem cell line (CSC-43) from a patient with sporadic Parkinson's disease. AB - An induced pluripotent stem cell (iPSC) line was generated from a 36-year-old patient with sporadic Parkinson's disease (PD). Skin fibroblasts were reprogrammed using the non-integrating Sendai virus technology to deliver OCT3/4, SOX2, c-MYC and KLF4 factors. The generated cell line (CSC-43) exhibits expression of common pluripotency markers, in vitro differentiation into three germ layers and normal karyotype. This iPSC line can be used to study the mechanisms underlying the development of PD. PMID- 29334631 TI - Acceptability of intervention materials to decrease risk for alcohol and medication interactions among older adults. AB - BACKGROUND: The majority of older adults take prescription or over-the-counter medications and about half consume alcohol regularly. Despite high risk for alcohol medication interactions (AMI), few community-level interventions exist to prevent AMI. The current study assessed the acceptability of educational materials created for use in a brief intervention to prevent AMI among older adults. METHODS: Older adults from two senior centers reviewed intervention materials (poster, patient and pharmacist brochures, and public service announcement) and participated in a pre and post-test to provide feedback and to assess changes in AMI-related awareness and intentions. RESULTS: Post-test data showed positive feedback and an increase in participant understanding of AMI prevention, with statistically significant changes in perceived importance of messaging surrounding risky alcohol use and potential consequences of AMI. DISCUSSION: The intervention materials were positively received, and participant feedback indicated that the collective presentation of all the materials was the most preferred tool for educating the community. With positive trends in awareness and knowledge, intervention effectiveness needs to be further evaluated in future large-scale studies. LESSONS LEARNED: This study provides health education specialists with tools to prevent alcohol and medication interactions among older adults. PMID- 29334632 TI - Capillary electrophoresis-mass spectrometry for targeted and untargeted analysis of the sub-5 kDa urine metabolome of patients with prostate or bladder cancer: A feasibility study. AB - Targeted and untargeted analyses of the sub-5 kDa urine metabolome of genitourinary cancer patients (prostate and/or bladder) were performed without chemical derivatization using capillary electrophoresis-electrospray ionization mass spectrometry (CE-ESI-MS). For targeted analysis, endogenous levels of sarcosine and 5 other amino acid metabolites implicated in the progression of prostate cancer were quantified in four patients and in a pooled urine sample from healthy volunteers. An untargeted analysis (m/z 50 to 850) of patient urine was performed using the same CE-ESI-MS system identifying over 400 distinct molecular features per patient. All patient urine samples were collected at prostatectomy/cystectomy via catheter. Patient urine samples were filtered by centrifugation, with endogenous sarcosine enriched by solid-phase extraction, and the processed samples loaded onto CE-ESI-MS for analysis. Diagnostic information, digital pathological slides, and tissue samples were collected and stored in a comprehensive biobanking database. The introduction of urine sample collection into the surgery workflow was facile and is a promising strategy for addressing the translational research challenge of moving smoothly from "chromatogram to nomogram". PMID- 29334633 TI - Fluorous-assisted metal chelate affinity extraction for nucleotides followed by HILIC-MS/MS analysis. AB - We herein developed a selective method for the determination of nucleotides by fluorous-assisted metal chelate affinity extraction followed by hydrophilic interaction liquid chromatography (HILIC) combined with tandem mass spectrometric (MS/MS) analysis. In this study, the nucleotides were selectively chelated by Fe(III)-immobilized perfluoroalkyliminodiacetic acid, and the resulting chelates were subsequently extracted into a fluorous solvent. The nucleotides present in the fluorous solvent were then back-extracted into a non-fluorous solution, such as a solution of ammonia in aqueous acetonitrile. The resulting non-fluorous solution containing the nucleotides was then directly injected into an amide-type HILIC column using a mixture of acetonitrile and aqueous ammonium bicarbonate as the mobile phase for gradient elution, and the nucleotides were detected using the negative electrospray ionization MS/MS mode. In this method, the extraction recoveries of the nucleotides ranged from 43.2 to 94.7% within a relative standard deviation of 17%. This method enabled the determination of intracellular concentrations of nucleotides. PMID- 29334634 TI - Equine in vivo-derived metabolites of the SARM LGD-4033 and comparison with human and fungal metabolites. AB - LGD-4033 has been found in human doping control samples and has the potential for illicit use in racehorses as well. It belongs to the pharmacological class of selective androgen receptor modulators (SARMs) and can stimulate muscle growth, much like anabolic steroids. However, SARMs have shown superior side effect profiles compared to anabolic steroids, which arguably makes them attractive for use by individuals seeking an unfair advantage over their competitors. The purpose of this study was to investigate the metabolites formed from LGD-4033 in the horse in order to find suitable analytical targets for doping controls. LGD 4033 was administered to three horses after which plasma and urine samples were collected and analyzed for metabolites using ultra high performance liquid chromatography coupled to a high resolution mass spectrometer. In horse urine, eight metabolites, both phase I and phase II, were observed most of which had not been described in other metabolic systems. Six of these were also detected in plasma. The parent compound was detected in plasma, but not in non-hydrolyzed urine. The longest detection times were observed for unchanged LGD-4033 in plasma and in urine hydrolyzed with beta-glucuronidase and is thus suggested as the analytical target for doping control in the horse. The metabolite profile determined in the horse samples was also compared to those of human urine and fungal incubate from Cunninghamella elegans. The main human metabolite, dihydroxylated LGD-4033, was detected in the horse samples and was also produced by the fungus. However, it was a not a major metabolite for horse and fungus, which highlights the importance of performing metabolism studies in the species of interest. PMID- 29334635 TI - The effect of altitude and climate on the suicide rates in Turkey. AB - Suicide is one of the most important public health problems. There was an association between suicide and several factors such as psychiatric diseases and psychological characteristics, somatic illness, cultural, socioeconomic, familial, occupational and individual risk factors. Also, high altitude and climatic factors including high temperature, cloudiness, more sunshine and low rainfalls were defined as some of these risk factors in the literature. In this study, we aimed to investigate correlation between suicide rates and altitudes of all cities in Turkey and between suicide rates and climatic factors including Rainfall Activity Index, Winter Mean Temperatures, Summer Mean Temperatures and Temperature Difference between January and July previously defined by several authors in the broad series in Turkey. In Turkey, 29865 suicidal deaths occurred in 10 years period between 2006 and 2015. Of them, 21020 (70.4%) were males and 8845 (29.6%) were females. In this study, we found that high altitude above 1500 m, winter median temperature lower than -10 degrees C and hard temperature changes above 25 degrees C between winter and summer of settlements were important factors that affected on female suicide rates appropriate to knowledge which defined in previous studies. In conclusion, we suggested that the associations among suicide rates with altitudes and climate should be studied in wider series obtained from different countries for reaching more reliable results. PMID- 29334636 TI - Impact of demographic factors on the antidepressant effect: A patient-level data analysis from depression trials submitted to the Pharmaceuticals and Medical Devices Agency in Japan. AB - A substantial and variable placebo response can cause unreliable findings in clinical trials designed to demonstrate the efficacy of antidepressants, and the high rate of failed trials represents a major obstacle in the development of new drugs for major depressive disorder (MDD). However, the influence of demographic and symptom factors on the antidepressant effect remains to be established. The purpose of this study was to estimate the magnitude of this influence. A patient level meta-analysis of data from double-blind, randomized, placebo-controlled trials involving the use of antidepressants for adults with MDD was performed. Data from five confirmatory trials evaluating the efficacy of four antidepressants that were submitted to the Pharmaceuticals and Medical Devices Agency (PMDA) to support new drug applications were pooled (n = 1898). The change in the total score of 17-item Hamilton Depression Rating Scale (HDRS17) was the primary outcome of interest in our analysis. The changes in the total HDRS17 score in both the antidepressant medication group (ADM) and the placebo group (PBO) increased in relation to baseline symptom severity. Among older patients and those with a history of prior treatment with antidepressants, the changes in the total HDRS17 score decreased in ADM and remained static in PBO. There were no notable clinical symptoms that influenced the change in the total HDRS17 score. Baseline symptom severity, participant age and a history of previous treatment with antidepressants were suggested as moderators of the antidepressant effect. The drug-placebo difference in the estimated changes as a function of baseline symptom severity varied depending on the regression models used, and further studies are required to investigate appropriate models. PMID- 29334637 TI - Contamination characteristics and source apportionment of heavy metals in topsoil from an area in Xi'an city, China. AB - As soil-extractable elements potentially pose ecological and health risks, identifying their contamination characteristics and sources is crucial. Therefore, to understand topsoil trace elements in the urban ring zone from the Second Ring Road to the Third Ring of Xi'an city in China, we determined the concentrations of Zn, Co, V, As, Cu, Mn, Ba, Ni and Pb, and analyzed the sources of the contamination. The results showed that the individual pollution indices of Pb, Co, Cu, Zn, Ba, Ni, Mn, As, and V were 1.79, 1.48, 1.41, 1.33, 1.20, 1.07, 1.04, 0.99, and 0.99, respectively. Evaluation with the aid of the pollution load index (PLI) indicated slight soil contamination by these elements in the study area. Using the positive matrix factorization (PMF) method, we identified four sources of contamination, namely (1) a natural source, (2) traffic emission source, (3) industrial emission source, and (4) mixed source. PMF is an effective tool for source apportionment of heavy metals in topsoil. The contribution rates of the natural source, traffic source, mixed source, and industrial source to the heavy metal contamination were specified as 25.04%, 24.71%, 24.99%, and 25.26%, respectively. Considering the above, any attempt to reduce the soil environmental cost of urban development, has to take into account the heavy metal contamination of the topsoil from industries, traffic, and other activities. PMID- 29334638 TI - The effectiveness of physical exercise on cognitive and psychological outcomes in individuals with mild cognitive impairment: A systematic review and meta analysis. AB - OBJECTIVE: Individuals with mild cognitive impairment (MCI) are at high risk for developing dementia. Physical exercise is a promising intervention for cognitive decline. Systematic reviews regarding the effects of physical exercise on cognitive and psychological outcomes among MCI patients are limited, and a systematic review exploring the effects of exercise modalities on the results has not been conducted. This study evaluated the effects of physical exercise on cognitive and psychological outcomes for MCI patients and attempted to identify which specific modality of exercise is more effective. DESIGN: Systematic review and meta-analysis. DATA SOURCES: A systematic search of Medline, CINAHL, EMBASE, PsycINFO, SPORTDiscus, and the China National Knowledge Infrastructure was performed. REVIEW METHODS: Two reviewers independently assessed the study quality using the Effective Public Health Practice Project Quality Assessment Tool. Meta analysis was conducted when data were available, with further subgroup analyses for exercise types. A series of sensitivity analyses were conducted to explore the influence of study quality and control types on the primary outcome. A narrative analysis was performed when statistical synthesis was inappropriate. RESULTS: Eleven studies met the inclusion criteria. The exercise interventions can be classified into three types: (a) aerobic exercise, (b) resistance exercise, and (c) multi-modal exercise. Results showed that physical exercise had beneficial effects for global cognition [standard mean difference (SMD) = 0.30, 95% confidence interval (CI): 0.10-0.49, p = 0.002]. Further subgroup analysis demonstrated that aerobic exercise programmes are consistently associated with medium effect size (SMD: 0.54-0.58). However, the effects of physical exercise on domain-specific cognitive function and psychological outcomes in MCI patients remain inconclusive. Results of sensitivity analysis indicated that types of control exert influence on the outcomes. CONCLUSIONS: Physical exercise, aerobic exercise in particular, benefits global cognition in MCI patients. The evidence of physical exercise on domain-specific cognitive function and psychological outcomes remains unclear, more trials with rigorous study design are necessary to provide the evidence. PMID- 29334639 TI - Vestibular schwannoma and hearing preservation: Usefulness of level specific CE Chirp ABR monitoring. A retrospective study on 25 cases with preoperative socially useful hearing. AB - BACKGROUND AND OBJECTIVES: Decision-making regarding the therapy of vestibular schwannoma (VS) changed over the last decades, during which curative microsurgery has been promoted. Goals of VS microsurgery are: extensive resection, facial nerve (FN) preservation and, in selected cases, hearing preservation (HP). The aim of this study is to evaluate postoperative HP with reference to tumor size in patients operated on with Level Specific (LS)-CE-Chirp(r) ABR monitoring. PATIENTS AND METHODS: Twentyfive consecutive patients with socially useful hearing (SUH) underwent VS microneurosurgery by retrosigmoid (RS) approach. Selection criteria were: pure tone audiogram <50dB loss and speech discrimination score >50% (50/50 criterion; AAO-HNS class A-B). In relation to maximum diameter, we identified 2 size-groups: A) <=2cm (13 cases); B) >2cm (12 cases). HP attempt was assisted by intraoperative ABR evoked by LS CE-Chirp(r) acoustic stimuli. RESULTS: Mean age was 44,3 years (20-64); average maximum diameter 2,04cm (8 40mm). Total and nearly-total (>95%) resection was possible in all. Mortality and major morbidity were zero. In all, FN was anatomically and functionally preserved; in 10 an incomplete FN deficit (House-Brackmann II and III) was followed by complete recovery (House-Brackmann I). SUH preservation rate was 52%, with significant differences in relation to size: 61,5% group A and 41,7% group B (p = 0,014). Postoperative AAO-HNS C (serviceable) hearing was observed in 36%, deafness in 12%. CONCLUSION: Microsurgery represents a valid therapeutic option for small growing VS with SUH. Our data confirm that RS removal of VS with intraoperative ABR monitoring allows good rate of SUH preservation, especially if maximum diameter does not exceed 2cm. LS-CE-Chirp ABR represent a safe and effective method for monitoring cochlear nerve, with fast and clear intraoperative neurophysiological feedback. PMID- 29334640 TI - Not single brain areas but a network is involved in language: Applications in presurgical planning. AB - OBJECTIVES: Language is an important human function, and is a determinant of the quality of life. In conditions such as brain lesions, disruption of the language function may occur, and lesion resection is a solution for that. Presurgical planning to determine the language-related brain areas would enhance the chances of language preservation after the operation; however, availability of a normative language template is essential. PATIENTS AND METHODS: In this study, using data from 60 young individuals who were meticulously checked for mental and physical health, and using fMRI and robust imaging and data analysis methods, functional brain maps for the language production, perception and semantic were produced. RESULTS: The obtained templates showed that the language function should be considered as the product of the collaboration of a network of brain regions, instead of considering only few brain areas to be involved in that. CONCLUSION: This study has important clinical applications, and extends our knowledge on the neuroanatomy of the language function. PMID- 29334641 TI - Do clinically anxious children cluster according to their expression of factors that maintain child anxiety? AB - BACKGROUND: Cognitive Behaviour Therapy (CBT) is an effective treatment for childhood anxiety disorders, yet a significant proportion of children do not benefit from it. CBT for child anxiety disorders typically includes a range of strategies that may not all be applicable for all affected children. This study explored whether there are distinct subgroups of children with anxiety disorders who are characterized by their responses to measures of the key mechanisms that are targeted in CBT (i.e. interpretation bias, perceived control, avoidance, physiological arousal, and social communication). METHODS: 379 clinically anxious children (7-12 years) provided indices of threat interpretation, perceived control, expected negative emotions and avoidance and measures of heart rate recovery following a speech task. Parents also reported on their children's social communication difficulties using the Social Communication Questionnaire (SCQ). RESULTS: Latent profile analysis identified three groups, reflecting (i) 'Typically anxious' (the majority of the sample and more likely to have Generalized anxiety disorder); (ii) 'social difficulties' (characterized by high SCQ and more likely to have social anxiety disorder and be male); (iii) 'Avoidant' (characterized by low threat interpretation but high avoidance and low perceived control). LIMITATIONS: Some measures may have been influenced by confounding variables (e.g. physical variability in heart rate recovery). Sample characteristics of the group may limit the generalizability of the results. CONCLUSIONS: Clinically anxious children appear to fall in to subgroups that might benefit from more targeted treatments that focus on specific maintenance factors. Treatment studies are now required to establish whether this approach would lead to more effective and efficient treatments. PMID- 29334642 TI - Examining the latent structure mechanisms for comorbid posttraumatic stress disorder and major depressive disorder. AB - BACKGROUND: Posttraumatic stress disorder (PTSD) is a complex psychiatric illness that can be difficult to diagnose, due in part to its comorbidity with major depressive disorder (MDD). Given that researchers have found no difference in prevalence rates of PTSD and MDD after accounting for overlapping symptoms, the latent structures of PTSD and MDD may account for the high comorbidity. In particular, the PTSD Negative Alterations in Cognition and Mood (NACM) and Hyperarousal factors have been characterized as non-specific to PTSD. Therefore, we compared the factor structures of the Diagnostic and Statistical Manual of Mental Disorders, 5thedition (DSM-5) PTSD and MDD and examined the mediating role of the PTSD NACM and Hyperarousal factors on the relationship between MDD and PTSD symptom severity. METHODS: Participants included 598 trauma-exposed veterans (Mage = 48.39, 89% male) who completed symptom self-report measures of DSM-5 PTSD and MDD. RESULTS: Confirmatory factor analyses indicated an adequate-fitting four factor DSM-5 PTSD model and two-factor MDD model. Compared to other PTSD factors, the PTSD NACM factor had the strongest relationship with the MDD Affective factor, and the PTSD NACM and Hyperarousal factors had the strongest association with the MDD Somatic factor. Further, the PTSD NACM factor explained the relationship between MDD factors and PTSD symptom severity. More Affective and Somatic depression was related to more NACM symptoms, which in turn were related to increased severity of PTSD. LIMITATIONS: Limitations include the reliance on self-report measures and the use of a treatment-seeking, trauma-exposed veteran sample which may not generalize to other populations. CONCLUSIONS: Implications concerning the shared somatic complaints and psychological distress in the comorbidity of PTSD and MDD are discussed. PMID- 29334643 TI - Longitudinal determinants of depression among World Trade Center Health Registry enrollees, 14-15 years after the 9/11 attacks. AB - BACKGROUND: Exposure to the September 11, 2001 (9/11) terrorist attacks has been found to be associated with posttraumatic stress disorder (PTSD) and comorbid PTSD and depression up to 10-11 years post-disaster. However, little is known about the longitudinal predictors of mental health conditions over time. METHODS: We examined longitudinal determinants of depression within strata of PTSD among 21,258 enrollees of the World Trade Center Health Registry who completed four questionnaires over 14 years of follow-up (Wave 1 in 2003-04; Wave 2 in 2005-06; Wave 3 in 2011-12; and Wave 4 in 2015-16). PTSD status was measured using the PTSD checklist on all four waves and defined as a score of >= 44; depression was assessed using the 8-item Patient Health Questionnaire at Waves 3 and 4 and defined as a score of >= 10. RESULTS: Across Waves 3 and 4, 18.6% experienced depression, and it was more common among those who ever had PTSD (56.1%) compared with those who had not (5.6%). Across PTSD strata, predictors of depression included low income, unemployment, low social integration and support, post-9/11 traumatic life events, and chronic physical illness. These factors also decreased the likelihood of recovering from depression. LIMITATIONS: Depression symptoms were not measured at Waves 1 and 2; data was self-reported. CONCLUSIONS: These findings highlight the substantial burden of depression in a trauma-exposed population 14-15 years post-disaster, especially among those with PTSD. Similar life stressors predicted the course of depression among those with and without PTSD which may inform public health and clinical interventions. PMID- 29334644 TI - Predictors of remission from probable depression among Hong Kong adolescents - A large-scale longitudinal study. AB - BACKGROUND: This study investigated the incidence of remission from probable depression among adolescents in Hong Kong. Remissions were defined as having Center for Epidemiological Studies Depression Scale (CESD) scores changed from >=16 at baseline to <16 over the 12-month follow-up period. The study tested the predictors of remissions, including perceived changes in family support, self efficacy, self-esteem, positive affect, negative events, social anxiety, and loneliness. METHODS: The study surveyed 9666 secondary school students and identified 5487 (57%) students with probable depression in Hong Kong. A questionnaire assessing the levels of the aforementioned variables was completed at baseline and at the 12-month follow-up. RESULTS: Among participants with probable depression at baseline, 23.2% remitted from depression at follow-up. Remissions were more common among males than females. Univariate logistic regression showed that perceived changes in all the aforementioned variables significantly predicted remission for both males and females. The same is true for most of these variables when they were entered together into multiple logistic regression models (with and without controlling for baseline CESD scores), except for family support in the female model and self-efficacy in both male and female models. LIMITATIONS: Limitations include potential self-report bias and only one follow-up observation over time. The design treats cases of probable mild to severe depression as a single group (CESD>=16). CONCLUSIONS: The findings are potentially useful for designing and guiding related intervention programs. Results highlight the importance of long-term follow-up of those screened as probable depression to understand the course of changes in levels of depression. PMID- 29334645 TI - Co-morbid depressive disorder is associated with better neurocognitive performance in first episode schizophrenia spectrum. AB - BACKGROUND: Both major depressive disorder (MDD) and first episode schizophrenia spectrum (FES) are associated with significant neurocognitive deficits. However, it remains unclear whether the neurocognitive deficits in individuals with FES are more severe if there is comorbid depressive disorder. The aim of this study was to compare the neurocognitive profiles between those with and without full threshold depressive disorder in FES. METHOD: This study involved secondary analysis of baseline data from a randomized controlled trial of vocational intervention for young people with first-episode psychosis (N = 82; age range: 15 25 years). RESULTS: Those with full-threshold depressive disorder (n = 24) had significantly better information processing speed than those without full threshold depressive disorder. Severity of depressive symptoms was also associated with better information processing speed. LIMITATIONS: In additional to the cross-sectional design, limitations of this study include the absence of assessing insight as a potential mediator. CONCLUSIONS: After the first psychotic episode, it could be speculated that those with better information processing speed may be more likely to develop full-threshold depressive disorder, as their ability to efficiently process information may allow them to be more aware of their situations and environments, and consequently to have greater insight into the devastating consequences of FES. Such novel findings support the examination of full-threshold depressive disorder in relation to neurocognitive performance across illness phases in future work. PMID- 29334646 TI - 17beta-estradiol improves the efficacy of exploited autologous bone marrow derived mesenchymal stem cells in non-union radial defect healing: A rabbit model. AB - Exploiting mesenchymal stem cells (MSCs) appears to be an appealing alternative to the traditional clinical approach in the treatment of non-union bone defects. It has been shown that 17beta-estradiol improves the osteogenesis and proliferation potential of the MSCs via estrogen receptors. We investigated the effect of 17beta-estradiol on exploiting autologous BMSCs (bone marrow-derived MSCs) for the purpose of healing of radial non-union segmental defect in rabbit. Twenty rabbits were divided into 4 experimental groups: 1. Control group; 2. MSC treatment group; 3. 17beta-estradiol (E2) treatment group; and 4. E2+MSC treatment group. Isolated BMSCs were seeded in a critical-sized defect on radial mid-diaphysis that was filled with autologous fibrin clot differently in 4 groups: 1. intact fibrin clot (control); 2. Fibrin clot containing MSCs; 3. Estradiol; and 4. E2 and MSCs. Defect healing was assessed by radiological (week 0, 2, 4, 6, 8 and 10) and histopathological evaluation (week 10). Radiological evaluation data demonstrated that quantities for the E2+MSC group were significantly the greatest in comparison with the other groups at week 4 to 10 inclusive. Moreover, Histopathological evaluation indicated that the E2+MSC group had the highest score which was significantly greater than the E2 group and the control group (P<0.05). In-vivo application of in situ 17beta-estradiol provides the seeded BMSCs with improved osteogenic capacity in tandem with an accelerated rate of bone healing. This obviously more qualified approach that yields in a shorter time appears to be promising for the future cell-based clinical treatments of the non-union bone fractures. Exploiting mesenchymal stem cells (MSCs) appears to be an appealing alternative to the traditional clinical approach in the treatment of non-union bone defects. It has been shown that 17beta-estradiol improves the osteogenesis and proliferation potential of the MSCs via estrogen receptors. We investigated the effect of 17beta-estradiol on exploiting autologous BMSCs (bone marrow-derived MSCs) for the purpose of healing of radial non-union segmental defect in rabbit. Twenty rabbits were divided into 4 experimental groups: 1. Control group; 2. MSC treatment group; 3. 17beta estradiol (E2) treatment group; and 4. E2+MSC treatment group. Isolated BMSCs were seeded in a critical-sized defect on the radial mid-diaphysis that was filled with autologous fibrin clot differently in 4 groups: 1. intact fibrin clot (control); 2. Fibrin clot containing MSCs; 3. Estradiol; and 4. E2 and MSCs. Defect healing was assessed by radiological (week 0, 2, 4, 6, 8 and 10) and histopathological evaluation (week 10). Radiological evaluation data demonstrated that quantities for the E2+MSC group were significantly the greatest in comparison with the other groups at week 4 to 10 inclusive. Moreover, Histopathological evaluation indicated that the E2+MSC group had the highest score which was significantly greater than the E2 group and the control group (P<0.05). In-vivo application of in situ 17beta-estradiol provides the seeded BMSCs with improved osteogenic capacity in tandem with an accelerated rate of bone healing. This obviously more efficient approach that yields in a shorter time appears to be promising for future cell-based clinical treatments of the non union bone fractures. PMID- 29334647 TI - Time-resolved decoding of planned delayed and immediate prehension movements. AB - Different contexts require us either to react immediately, or to delay (or suppress) a planned movement. Previous studies that aimed at decoding movement plans typically dissociated movement preparation and execution by means of delayed-movement paradigms. Here we asked whether these results can be generalized to the planning and execution of immediate movements. To directly compare delayed, non-delayed, and suppressed reaching and grasping movements, we used a slow event-related functional magnetic resonance imaging (fMRI) design. To examine how neural representations evolved throughout movement planning, execution, and suppression, we performed time-resolved multivariate pattern analysis (MVPA). During the planning phase, we were able to decode upcoming reaching and grasping movements in contralateral parietal and premotor areas. During the execution phase, we were able to decode movements in a widespread bilateral network of motor, premotor, and somatosensory areas. Moreover, we obtained significant decoding across delayed and non-delayed movement plans in contralateral primary motor cortex. Our results demonstrate the feasibility of time-resolved MVPA and provide new insights into the dynamics of the prehension network, suggesting early neural representations of movement plans in the primary motor cortex that are shared between delayed and non-delayed contexts. PMID- 29334648 TI - Using mass struvite precipitation to remove recalcitrant nutrients and micropollutants from anaerobic digestion dewatering centrate. AB - The primary objective of this research was to remove recalcitrant nutrients from anaerobically digested sludge dewatering centrate. A struvite precipitation methodology is proposed where salt crystals are encouraged to ballast colloidal particles through heterogeneous nucleation and subsequent crystal growth. The secondary objective was to assess presence of micropollutants in precipitates. Four biologically unique dewatering centrates were used to test the precipitation methodology on the variety of anaerobic digester configurations that can be expected from municipal wastewater treatment plant. The effect of digestion sludge retention time (2 day, 20 day) and digestion temperature (35 degrees C, 55 degrees C) on the removal of dissolved unreactive phosphorus (P) and nitrogen (N) was monitored. Averaged across all four centrates, the precipitation methodology resulted in dissolved unreactive P and N removal of 82.4% and 66.6%, respectively. Antimicrobial contaminants (triclosan, triclocarban) were observed in the precipitates at minute concentrations (<18 ng/g-dry solids). Therefore, mass struvite precipitation can provide a means of recalcitrant nutrient treatment and reactive nutrient recovery without the micropollutant burden of biosolids land application. PMID- 29334649 TI - Determining variables that influence the phosphorus content of waste stabilization pond algae. AB - Waste stabilization ponds (WSP) are one of the most common forms of wastewater treatment for smaller communities globally, but have poor phosphorus removal. It is known that WSP algae can accumulate polyphosphate within their cells in excess of that needed for cell function. If polyphosphate accumulation could be triggered at the higher range of WSP cell concentrations, phosphorus removal from domestic wastewater could be significantly improved. However, this phenomenon is sporadic and still not fully understood. With a view of building a fundamental understanding to underpin the engineering of a new phosphorus removal process, this paper examines eight previously untested variables that may influence the cellular phosphorus content of WSP biomass. Although calcium, magnesium, and potassium are key constituents of polyphosphate granules, the concentrations tested were not limiting to polyphosphate accumulation. While literature also pointed to inoculum characteristics as potentially having an impact, no significance was found in this research. Conversely, three important new triggers where identified that significantly (90% confidence) affected the cellular phosphorus content of WSP biomass. An increase in cellular phosphorus content was triggered by decreasing the organic load, or allowing the pH to increase as compared to pH control. By contrast, the presence of mixing decreased the phosphorus content of the WSP biomass. PMID- 29334650 TI - Environmentally relevant concentrations of glibenclamide induce oxidative stress in common carp (Cyprinus carpio). AB - The hypoglycemic pharmaceutical glibenclamide (GLB) is widely used around the world. This medication is released into the environment by municipal, hospital and industrial wastewater discharges. Although there are reports of its environmental occurrence in the scientific literature, toxicity studies on aquatic species of commercial interest such as the common carp Cyprinus carpio are scarce. The present study aimed to evaluate the oxidative stress induced on C. carpio by environmentally relevant concentrations of GLB. Biomarkers of oxidative damage such as hydroperoxide content, lipid peroxidation and protein carbonyl content were evaluated as well as the activity of the antioxidant enzymes superoxide dismutase and catalase. The concentration of GLB was determined in water as well as in gill, liver, muscle, brain and blood of carp at 12, 24, 48, 72 and 96 h. The findings obtained in the study prove that GLB induces increases in biomarkers of oxidative damage and antioxidant enzyme activity in the teleost C. carpio, that this response is not concentration dependent and that the organs evaluated bioconcentrate this hypoglycemic agent. These findings permit us to conclude that the presence of GLB in water bodies represents a risk for aquatic species. PMID- 29334652 TI - Insight into the expression variation of metal-responsive genes in the seedling of date palm (Phoenix dactylifera). AB - Phytochelatin synthase and metallothionein gene expressions were monitored via qPCR in order to investigate the molecular mechanisms involved in Cd and Cr detoxification in date palm (Phoenix dactylifera). A specific reference gene validation procedure using BestKeeper, NormFinder and geNorm programs allowed selection of the three most stable reference genes in a context of Cd or Cr contamination among six reference gene candidates, namely elongation factor alpha1, actin, aldehyde dehydrogenase, SAND family, tubulin 6 and TaTa box binding protein. Phytochelatin synthase (pcs) and metallothionein (mt) encoding gene expression were induced from the first days of exposure. At low Cd stress (0.02 mM), genes were still up-regulated until 60th day of exposure. At the highest metal concentrations, however, pcs and mt gene expressions decreased. pcs encoding gene was significantly up-regulated under Cr exposure, and was more responsive to increasing Cr concentration than mt encoding gene. Moreover, exposure to Cd or Cr influenced clearly seed germination and hypocotyls elongation. Thus, the results have proved that both analyzed genes participate in metal detoxification and their expression is regulated at transcriptional level in date palm subjected to Cr and Cd stress. Consequently, variations of expression of mt and pcs genes may serve as early-warning biomarkers of metal stress in this species. PMID- 29334651 TI - Effects of perinatal fluoride exposure on the expressions of miR-124 and miR-132 in hippocampus of mouse pups. AB - To investigate the effects of perinatal fluoride exposure on learning and memory ability of mouse offspring, ICR female mice were received different doses of sodium fluoride (0, 25, 50, 100 mg/L NaF) from pregnant day 7 to lactational day 21. Pups were exposed to fluoride through the cord blood and breast milk. Open field test showed that compared to the control group, perinatal fluoride exposure significantly decreased the number of entries into the center zone in 100 mg/L NaF group. In the eight-arm maze test, the number of working memory errors, reference memory errors, and the total arm entries were significantly increased in fluoride treatment groups, compared to the control group. Additionally, 100 mg/L NaF significantly elevated the expression levels of miR-124, miR-132, and DiGeorge syndrome chromosomal region 8 (DGCR8) in hippocampus of mouse pups at postnatal day (PND) 21. Contrarily, methyl CpG binding protein 2 (MeCP2) were dramatically reduced in 50 and 100 mg/L NaF groups, while cAMP-response element binding protein (CREB) mRNA level was significantly decreased in all fluoride groups. These findings suggested that the impairment of learning and memory in mouse offspring induced by perinatal fluoride exposure may partly result from the enhanced miR-124 and miR-132 and the alterations of their target genes. PMID- 29334653 TI - Depletion study, withdrawal period calculation and bioaccumulation of sulfamethazine in tilapia (Oreochromis niloticus) treated with medicated feed. AB - The residue depletion of sulfamethazine (SMZ) was evaluated in tilapia (Oreochromis niloticus) after 11 days of administration of medicated feed containing SMZ, at the dose of 422 mg/kg body weight (bw). The determination of SMZ in feed and tilapia fillet was carried out using the QuEChERS approach for sample preparation, and high performance liquid chromatography with diode array detector (HPLC-DAD) and ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QToF-MS) for quantitation, respectively. Both methods were validated based on international and Brazilian guidelines and shown to be suitable for the intended purposes. The withdrawal period to reach the maximum residue level (MRL) of 100 MUg/kg, according to the European Union (EU) legislative framework to all substances belonging to the sulfonamide (SA) group (EU, 2010), was 10 days (260 degrees C-day). After treatment, the maximum level of SMZ accumulation in the tilapia muscle was 1.6 mg/kg. SMZ was shown to be quickly excreted by tilapia. Thus, considering the acceptable daily intake of SMZ established by the Codex Commission (0-0.05 mg/kg bw), and a factor of 5 times the upper amount of fish consumption in Brazil (38 kg/year), this study showed that there is a low risk of adverse effects to consumers. This study offers subsidies not only for the establishment of public policies with regard to the use of veterinary drugs currently not allowed in a country by their legal legislative framework for fish farming, but also to fish producers for the proper handling to ensure safe fish fillets. PMID- 29334655 TI - How yeast coordinates metabolism, growth and division. AB - All cells, especially single cell organisms, need to adapt their metabolism, growth and division coordinately to the available nutrients. This coordination is mediated by extensive cross-talk between nutrient signaling, metabolism, growth, and the cell division cycle, which is only gradually being uncovered: Nutrient signaling not only controls entry into the cell cycle at the G1/S transition, but all phases of the cell cycle. Metabolites are even sensed directly by cell cycle regulators to prevent cell cycle progression in absence of sufficient metabolic fluxes. In turn, cell cycle regulators such as the cyclin-dependent kinase directly control metabolic fluxes during cell cycle progression. In this review, I highlight some recent advances in our understanding of how metabolism and the cell division cycle are coordinated in the model organism Saccharomyces cerevisiae. PMID- 29334654 TI - PHBV polymer supported denitrification system efficiently treated high nitrate concentration wastewater: Denitrification performance, microbial community structure evolution and key denitrifying bacteria. AB - Biodegradable polymer supported denitrification (BPD) system shows good denitrification performance for the wastewater with low nitrate concentrations. In this study, a BPD system using Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) polymer as carbon source was developed to treat the wastewater with high nitrate concentrations. The denitrification performance, utilization ratio of PHBV polymers, and microbial community structure evolution and key denitrifying bacteria were comprehensively studied. Results indicated that an average nitrate removal efficiency of 99% could be achieved with an influent NO3--N concentration of 100 mg L-1 and a hydraulic retention time (HRT) of 7.25 h. Mass balance model predicted that 80% of the PHBV polymers were consumed by denitrifying bacteria, close to 72% consumption in real condition, suggesting the model might be useful for PHBV polymers management in BPD system. Further, the bacterial community structures varied along the bioreactor profile, which closely linked to the concentration profiles of nitrate and ammonia. Metatranscriptomic analysis identified the key denitrifying bacteria as Comamonas, Acidovorax and Dechloromonas. The PHBV supported denitrification system developed in this study shows potential for removal of high concentration of nitrate from wastewater. PMID- 29334656 TI - Activated protein C suppresses osteoclast differentiation via endothelial protein C receptor, protease-activated receptor-1, sphingosine 1-phosphate receptor, and apolipoprotein E receptor 2. AB - INTRODUCTION: Bone remodeling relies on a delicate balance between formation and resorption of bone tissues, processes in which bone-forming osteoblasts and bone resorbing osteoclasts play central roles. Recently, we reported that anticoagulant activated protein C (APC) promotes osteoblast proliferation, but the role of the blood coagulation system in bone remodeling remains unclear. In this study, to further elucidate the relationship between bone remodeling and blood coagulation, we investigated the effect of APC on osteoclast differentiation. MATERIALS AND METHODS: Normal human osteoclast precursor cells were cultured in their growth medium including soluble RANKL, M-CSF, and FBS, and on days 4 and 7, the culture medium was replaced with the same medium containing various concentrations of APC, protein C (PC), sphingosine 1-phosphate (S1P) receptor agonist, FTY720, or APC+various substances without FBS. On day 8, TRAP positive multinucleated cells (>=3 nuclei) were counted manually using a light microscope. The effects of APC on NF-kappaB and NFATc1 activation were evaluated using specific ELISA. RESULTS: APC suppressed RANKL-induced osteoclast differentiation, and this APC-induced suppression of osteoclast differentiation was inhibited by zymogen protein C and aprotinin, a serine protease inhibitor. Immunohistochemistry and RT-PCR analyses suggested that endothelial protein C receptor (EPCR) and protease-activated receptor-1 (PAR-1) were expressed in osteoclast precursor cells and osteoclasts. Both anti-PAR-1 antibody and anti EPCR antibody (RCR-252), which blocks APC binding to EPCR, inhibited the APC induced suppression of osteoclast differentiation. FTY720 had no effect on osteoclast differentiation. However, FTY 720 and S1P receptor antagonist, VP 23019, inhibited the APC-induced suppression of osteoclast differentiation. On the other hand, recombinant soluble human ApoER2 and anti-human ApoER2 inhibited the APC-induced suppression of osteoclast differentiation. Further, APC had no effect on NF-kappaB and NFATc1 activation. CONCLUSIONS: APC suppresses human osteoclast differentiation mainly by inhibiting the formation of multinucleated cells via EPCR, PAR-1, S1P receptor, and ApoER2 in a manner that depends on APC protease activity. PMID- 29334657 TI - Relationship of obsessive-compulsive symptoms to clinical variables and cognitive functions in individuals at ultra high risk for psychosis. AB - Few studies have investigated the relationship between obsessive-compulsive symptoms (OCS) and clinical variables, and cognition in individuals at ultra high risk (UHR) for psychosis. The aim of this study was to evaluate the frequency of OCS and their relationship with clinical variables and cognitive functions in individuals at UHR. Eighty-four individuals at UHR for psychosis were administered the Brief Psychiatric Rating Scale, the Yale-Brown Obsession Compulsion Symptom Check List and, the Calgary Depression Scale for Schizophrenia. A cognitive test battery was also applied. We compared the clinical, functional, and cognitive parameters of individuals at UHR with and without OCS and healthy controls. Thirty-five percent of the UHR sample had at least two obsessions/compulsions. The duration of subthreshold psychotic symptoms was longer in individuals with OCS. Those who can work/study before first presentation were more frequent in OCS-positive group. CDSS scores were higher in those with OCS. Compared to controls, OCS-negative group's performance was worse in 8 cognitive test items, while OCS-positive group performed worse in only one cognitive test item. Our findings suggest that OCS are common in the UHR group. OCS might be related to higher level of depression, but better work/study performance, and less cognitive deficits in UHR group. PMID- 29334658 TI - Contextual determinants of psychopathology. The singularity of attachment as a predictor of mental dysfunction. AB - The general aim of this research is to evaluate the singular weight of attachment relationships in psychopathology, to determine the point to which these relationships cannot be subsumed by other variables that are famously related to attachment, such as experience of stressful life events, social support, and coping styles. 172 people treated in mental health centers provided data related to these four aspects and about manifestations of psychopathology. Multiple linear regression analyses determined that 51% of the variance in the level of symptomatology is explained with six variables: two related to adult attachment (fear of rejection and abandonment in romantic relationships, and the degree of similarity to the fearful prototype), one related to social support (family appreciation), one to life events (overall perceived stress), and two to coping style (cognitive restructuring and social withdrawal). Fear of rejection was the variable accounting for the most variance. The findings suggest that adult attachment is a non-redundant individual factor associated with manifestations of psychological dysfunction and highlight the desirability of taking attachment history into account in clinical practice. PMID- 29334659 TI - Serum zinc levels in acute psychiatric patients: A case series. AB - Zinc dysregulation is linked to neuropsychiatric disorders and a beneficial response to zinc supplementation has been demonstrated for depression. In this case series, we examined serum zinc levels with respect to clinical factors among 20 acutely ill psychiatric cases admitted to a large urban public hospital. The results showed frank clinical zinc insufficiency in a quarter of the subjects. Group-wise analyses showed a significant association between reduced serum zinc and diagnosis of depression, and reduced serum zinc in those with aggressive, assaultive, or violent behaviors. By contrast, relatively elevated zinc levels were observed in a subset of psychotic cases on antipsychotics and mood stabilizers who had no mood symptoms. In summary, clinical zinc insufficiency was common in these acutely admitted psychiatric cases. Zinc supplementation may ameliorate symptoms in certain cases and should be considered in treatment planning. A separate patient group had elevated zinc levels, which could conceivably be pathogenic. Larger studies are needed to confirm and extend this pilot data. PMID- 29334660 TI - Global proteomic analysis of water buffalo (Bubalus bubalis) saliva at different stages of estrous cycle using high throughput mass spectrometry. AB - Accurate and efficient detection of estrus is one of the major constraints for exploitation of the production potential of buffalo owing to its poor manifestation of estrus signs, seasonal differences in expression and higher incidences of silent estrus (29%). The current study focused on identification of estrus specific candidate proteins in saliva of buffaloes. Estrus was detected based on behavioral signs in response to the teaser and changes in reproductive organs and confirmed by per-rectal examination, trans-rectal USG of reproductive organs, cervico-vaginal mucus characteristics and blood serum progesterone estimation. Day of onset of estrus was considered as day 0 and day -3, +3, +10 were considered as proestrus, metestrus and diestrus stage of the estrous cycle respectively. A total of 19 animals and their 38 estrous cycles (two from each) were included in this study. Saliva was collected from these animals during different stages of estrous cycle. Out of these, 08 animals were selected for global proteome analysis of saliva using in-solution digestion and nano-LC-MS/MS. A total of 275, 371, 304 and 565 proteins were identified with >=2 peptides during proestrus, estrus, metestrus and diestrus stages of estrous cycle. Among the identified proteins 31, 62, 32 and 104 proteins were found specific to proestrus, estrus, metestrus and diestrus stage of the estrous cycle. Few salivary proteins such as Cullin-associated NEDD8-dissociated protein 1, Heat shock 70 kDa protein 1A, 17-beta-hydroxysteroid dehydrogenase type 1, Inhibin beta A chain, testin were identified as estrus specific and are important for estrus physiology. Taken together, these estrus specific proteins could be considered as the candidate biomarker for detection and confirmation of estrus in buffalo after thorough validation. PMID- 29334661 TI - Altered expression of IL-1beta, IL-1RI, IL-1RII, IL-1RA and IL-4 could contribute to anovulation and follicular persistence in cattle. AB - Cystic ovarian disease (COD) is an important cause of infertility in dairy cattle. The main signs of this infertility are ovulation failure and follicular persistence. The aim of this study was to examine the expression of the cytokines IL-1beta, IL-1RI, IL-1RII, IL-1RA and IL-4 in ovarian follicular structures at different times of persistence in a model of follicular persistence induced by prolonged administration of progesterone in dairy cows. Protein expression of IL 1beta, IL-1RI, IL-1RII, IL-1RA and IL-4 was evaluated by immunohistochemistry. Additionally, IL-1beta and IL-4 concentrations in follicular fluid and serum were determined by ELISA. In granulosa cells, IL1-RII and IL-4 expression was higher in follicles with different persistence times than in the control dominant follicles. IL-1RA expression was higher in persistent follicles of the P15 group (15 days of follicular persistence) than in those of the control group. In theca cells, IL-1RII expression was higher in persistent follicles of the P0 group (expected time of ovulation) than in dominant follicles from the control group (p < .05) and the other persistence groups, whereas IL-4 expression was higher in persistent follicles of groups P0 and P15 than in the dominant follicles of the control group (p < .05). Differences between serum and follicular fluid within each group were detected only in P0 for IL-1beta, and in the control, P10 and P15 groups for IL-4 (p < .05). These results complement previous results, evidencing that early development of COD in cows is concurrent with an altered expression of cytokines in different ovarian follicular structures and may contribute to the follicular persistence and ovulation failure found in cattle with follicular cysts. PMID- 29334662 TI - Aqueous extracts of two tropical ethnobotanicals (Tetrapleura tetraptera and Quassia undulata) improved spatial and non-spatial working memories in scopolamine-induced amnesic rats: Influence of neuronal cholinergic and antioxidant systems. AB - BACKGROUND: Tetrapleura tetraptera (TT) and Quassia undulata (QU) are two predominant tropical ethnobotanicals with various medicinal values but are commonly used in folklore for the treatment of mental illness without justifiable mechanisms of action. AIM OF THE STUDY: To investigate the effects of aqueous extracts from TT fruits and QU leaves on the spatial and non-spatial working memory, antioxidant status and activities of neuronal marker enzymes of scopolamine-induced amnesic rats and thus, understand the possible mechanism of action of these plants. MATERIALS AND METHODS: Fifty-five albino rats were divided into eleven groups. Group I (normal rats) received normal saline (p.o), Group II-V (normal rats) administered with 50 and 300 mg/kg of each extract group VI (induced rats) received 2 mg/kg of scopolamine (i.p.), groups VII-X (induced rats) pretreated with 50 and 300 mg/kg of TT and QU extracts (p.o) before scopolamine administration, group XI (induced rats) treated with 2.5 mg/kg of donepezil. The treatment lasted for 14 days and amnesia was induced by a single dose of 2 mg/kg of scopolamine on the last day. Spatial (Y-maze) and non-spatial (novel objectect recoginiton test) working memories of the rats were tested. Thereafter, the animals were sacrificed and homogenates of isolated brain samples were assayed for cholinesterase activity and malondialdehyde (MDA) content. The phenolic characterisation of the samples was also carried out using HPLC-DAD chromatography. RESULTS: Administration of 2 mg/kg of scopolamine brought about a decrease in spatial and non-spatial memory indeces, increase in acetylcholinesterase and butyrylcholinesterase activities, as well as increased MDA content compared to the control. However, pretreatment with both extracts improved both spatial and non-spatial working memories and ameliorated the increased enzyme activities and MDA contents. Furthermore, the HPLC-DAD characterization of the extracts revealed the presence of p-coumaric acid, rutin, catechin, ellagic acid, quercetin, caffeic acid, chlorogenic acid and galic acid. CONCLUSION: The ability of the extracts to improved cognitive function and ameliorate impairment in cholinergic enzyme activities and antioxidant status in scopolamine-induced amnesic rats could help justify the possible neuroprotective properties of TT and QU and also explain possible mechanism of action of these ethnobotanicals as obtained in folklore medical practices. PMID- 29334663 TI - Acute toxicity screening of different extractions, components and constituents of Polygonum multiflorum Thunb. on zebrafish (Danio rerio) embryos in vivo. AB - Polygonum multiflorum Thunb. has been used widely in East Asia in treatment of diseases associated with aging. However, there are many reports referred to the toxicity of P. multiflorum, especially for liver adverse reactions. The toxicity of it is caused by over dosage or by the herb itself remains unclear. The aim of this study was to study the toxicity of different extractions, components and constituents of P. multiflorum, which were assessed in zebrafish embryos. Firstly, the difference of extracting solvent to the toxicity of P. multiflorum was researched to probe the influence of usages to the safety of P. multiflorum. The toxicity of 70% EtOH extract is considerably higher than that of other extracts. Secondly, 70% EtOH extract was subjected to macroporous resin (DM-8) eluting with a gradient of water and EtOH (H2O, 25% EtOH, 40% EtOH and 95% EtOH) to give four components (A-D). The toxicity of the component (D) showed higher than the other components (A-C). Thus, the component (D) was taken more attentions to research. Lastly, study on the chemical constituents of the component (D), 27 compounds, including 7 anthraquinones (1-7), 8 stilbenes (8 15), 7 anthrones (16-22), 3 cinnamic acid amides (23-25), 2 naphthols (26-27) were isolated and assessed in zebrafish embryos. Compounds 1-3, 16-22 and 26-27 showed severe toxicity against the zebrafish embryos while other compounds, such as stilbenes, showed no obvious toxicity. PMID- 29334664 TI - Methyl dehydroabietate counters high fat diet-induced insulin resistance and hepatic steatosis by modulating peroxisome proliferator-activated receptor signaling in mice. AB - The aim of this study was to investigate the therapeutic effects of methyl dehydroabietate (mDA) on adipocyte differentiation in 3T3-L1 preadipocytes and obesity characteristics induced by high-fat diet (HFD) in mice. Adipocyte differentiation in 3T3-L1 cells was evaluated after 14 days of incubation with mDA. mDA enhanced adipocyte differentiation in 3T3-L1 cells. For the in vivo evaluation, five-week-old male C57BL/6J mice were fed HFD or normal CE-2 diet (control) for eight weeks. During the experimental period, mice were administered mDA (50 mg/kg, p.o.) as an olive oil emulsion (containing 10% ethanol), and body weights were measured weekly. At the end of the experiment, the mice were euthanized after 16 h fasting period, and plasma samples were collected. The liver, kidney, and epididymal adipose tissues were collected and weighed. It significantly decreased body weight, adipose tissue weight, and plasma levels of glucose, insulin, leptin, and pro-inflammatory cytokines compared with that in the HFD group, and markedly reduced the impairment in glucose tolerance in obese mice. Furthermore, mDA reduced HFD-induced adipocyte hypertrophy and the formation of hepatic lipid droplets. Moreover, it induced the expression of proliferator-activated receptor alpha (PPARalpha) in the liver and PPARgamma in the adipose tissues. Our findings demonstrate that mDA reduces obesity-induced glucose and insulin tolerance by inducing PPAR expression. PMID- 29334665 TI - I-7ab inhibited the growth of TNBC cells via targeting HDAC3 and promoting the acetylation of p53. AB - Triple negative breast cancer (TNBC) is a heterogenous disease with high aggressive and poor outcome. The lack of biomarkers and targeted therapies makes it a challenge for the treatment of TNBC. Histone deacetylase inhibitors (HDACis) are emerging as novel anti-tumor agents in many types of human cancers. In this study, we found that I-7ab, a novel HDACi, inhibited the cell viability of TNBC cells and induced the cell apoptosis. Mechanistically, I-7ab specifically decreased the expression of HDAC3 and promoted the acetylation of p53 at both Lys373 and Lys382 amino acids. The up-regulated acetylation of p53 promoted the transcriptional activity of p53 and induced the expression of p21, which consequently caused cell cycle arrest at G1 phase. Administration of I-7ab inhibited the colony formation of TNBC cells. Collectively, these results indicated I-7ab as a promising anti-cancer agent in the treatment of TNBC. PMID- 29334666 TI - Effects of Berberine chloride on the liver of streptozotocin-induced diabetes in albino Wistar rats. AB - The goal of the present study is to evaluate the effect of Berberine chloride (BC) on the liver of streptozotocin (STZ) induced diabetic rat. Diabetic rats were treated with BC (50 mg/kg b.w) or glibenclamide (6 mg/kg b.w), daily for 45 days. After BC treatment in diabetic rats, there was a significant (P < 0.05) decline in the levels of hepatic markers, lipid peroxidation markers such as lipid hydroperoxides (LOOH) and thiobarbituric acid reactive substances (TBARS), and pro-inflammatory mediators like tumor necrosis factor-alpha (TNF-alpha), phosphorylated nuclear factor kappa-B-p65 (phospho-NF-kappaB p65), cyclooxygenase (COX-2), nitric oxide synthase (iNOS) as well as pro-apoptotic mediators such as Bax and cytochrome c. A significant (P < 0.05) increase in hexokinase, glucose-6 phosphate dehydrogenase, enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx), and non-enzymatic antioxidants such as glutathione (GSH), vitamin E and vitamin C, as well as anti apoptotic protein Bcl-2 were observed in the liver of BC treated diabetic rats. Thus, from these findings, it can be concluded that the administration of BC notably recovered the liver from hyperglycemia induced antioxidant imbalance, inflammation and apoptosis as well as rectified the imbalance in carbohydrate metabolizing enzymes. PMID- 29334667 TI - Lithium, a classic drug in psychiatry, improves nilotinib-mediated antileukemic effects. AB - Although Tyrosine kinase inhibitors (TKIs) that target Bcr-Abl play a key role in Chronic Myeloid Leukemia (CML) therapy, they do not eradicate CML-initiating cells, which lead to the emergence of drug resistance. Here we used the lithium, a GSK-3 inhibitor, to attempt to potentiate the effects of nilotinib against leukemia cells. For this purpose, a K562 leukemia cell line and bone marrow cells from untreated Chronic Myeloid Leukemia (CML) patients, prior to any exposure to TKIs, were used as a model. Our results demonstrated that the combination of lithium + nilotinib (L + N) induced K562-cell death and cleaved caspase-3 when compared to lithium or nilotinib alone, accompanied by GSK-3beta phosphorylation and Bcr-Abl oncoprotein levels reduction. Interestingly, these events were related to autophagy induction, expressed by increased LC3II protein levels in the group treated with L + N. Furthermore, the clonogenic capacity of progenitor cells from CML patients was drastically reduced by L + N, as well as lithium and nilotinib when used separately. The number of cell aggregates (clusters), were increased by all treatments (L + N, lithium, and nilotinib). This pioneering research has demonstrated that lithium might be of therapeutic value when targeting Bcr-Abl cells with nilotinib because it triggers cell death in addition to exerting classical antiproliferative effects, opening new perspectives for novel target and therapeutic approaches to eradicate CML. PMID- 29334668 TI - Lidanpaidu prescription alleviates lipopolysaccharide-induced acute kidney injury by suppressing the NF-kappaB signaling pathway. AB - The Lidanpaidu Prescription (LDP), a hospital preparation, composed of Chinese classical preparations, has been reported to have antiendotoxin, anticoagulant and other effects. However, its therapeutic effect on lipopolysaccharide (LPS) induced acute kidney injury (AKI) and the mechanisms remain unclear. Therefore, we administered LPD pretreatment at different doses to examine the protective effects and mechanisms in LPS-induced AKI in mice. The kidney injury induced by LPS was assessed by histological examination. ELISA was used to detect the levels of inflammatory cytokines. The mRNA expression of the inflammatory genes IKKbeta and TNF-alpha in kidney tissues was assessed by RT-PCR. Finally, Western blot was performed to assess the NF-kappaB signaling pathway related proteins, and the nuclear translocation of NF-kB P65 was detected by immunofluorescence laser confocal microscopy. The findings suggested that LDP significantly improved at 48 h animal survival (66.7%), compared with the LPS group (26.7%), determined by a Kaplan-Meier analysis. LDP attenuated the kidney histopathological changes induced by LPS and decreased the inflammatory cytokine levels in serum and renal tissue. Moreover, LDP markedly inhibited the expression of inflammatory genes and suppressed the activation of relevant proteins in the nucleus. In summary, these findings suggest that LDP reduces LPS-induced AKI via a mechanism related to the suppression of the NF-kappaB signaling pathway. PMID- 29334669 TI - Anti-obesity effects of Clausena excavata in high-fat diet-induced obese mice. AB - Clausena excavata (C. excavata) has been used as a traditional medicine for the treatment of abdominal pain, enteritis, dysentery, and malaria. The present study was designed to evaluate the effect of a 50% ethanol extract of C. excavata (ECE) on weight loss, adipocyte size, and obesity-related biochemical parameters in high-fat diet (HFD)-induced obese mice. After 6 weeks of HFD + ECE administration, HFD-induced total fat, subcutaneous fat, and visceral fat were evaluated by micro-computed tomography. The serum levels of triglyceride (TG), total cholesterol (TCH), high-density lipoprotein (HDL) cholesterol, and low density lipoprotein (LDL) cholesterol were evaluated with a biochemical analyzer, and leptin and adiponectin levels in the serum were assessed via enzyme-linked immunoassay (ELISA). Moreover, adipocyte size and lipid formation in the liver were examined. We found that weight gain, epididymal fat pad weight, adipocyte size, and lipid formation were markedly attenuated in the livers of HFD-induced obese mice treated with ECE. Furthermore, TG, TCH, and leptin decreased in the serum, whereas adiponectin increased. In conclusion, our data show that ECE has potent anti-obesity activity in vivo and support the development of ECE as a potential therapeutic agent for the treatment of obesity. PMID- 29334670 TI - Genetic ablation of TRPV1 exacerbates pressure overload-induced cardiac hypertrophy. AB - Transient receptor potential vanilloid 1 (TRPV1) channels expressed in sensory nerves may regulate vascular tone and cardiovascular function via their anti inflammatory effects by releasing neuropeptide calcitonin gene-related peptide (CGRP). Inflammation plays a role in the progression of cardiac hypertrophy and TRPV1 activation may be key to cardiac inflammatory processes. The aim of this study was to test the hypothesis that TRPV1 modulates inflammatory processes to protect the heart from pressure overload-induced hypertrophy and inflammatory responses. Trpv1 knockout (Trpv1-/-) and wild-type (WT) mice were subjected to transverse aortic constriction (TAC) or sham operation. Four weeks after TAC, WT and Trpv1-/- mice had developed left ventricular (LV) hypertrophy with increased LV mass, fibrosis and infiltration of macrophages as well as increased secretion of tumor necrosis factor alpha, interleukin-6 from cardiac tissue (all P < 0.05), those were higher in Trpv1-/- than in WT mice with TAC (all P < 0.05). In addition, decreases of LV ejection fraction and fractional shortening were greater in Trpv1-/- than in WT mice (both P < 0.05). Moreover, atrial natriuretic peptide level was greater in Trpv1-/- than in WT mice with TAC (P < 0.05). Compared to sham control, TAC procedure significantly increased cardiac TRPV1 expression and CGRP release in WT mice (both P < 0.05), but not in Trpv1-/- mice. These results demonstrate that Trpv1 gene deletion results in excessive inflammation, exaggerates cardiac hypertrophy, and deteriorates cardiac function after TAC, which may be due to abnormal cardiac remodeling and decreased CGRP in the absence of TRPV1. PMID- 29334671 TI - Glucosamine promotes osteoblast proliferation by modulating autophagy via the mammalian target of rapamycin pathway. AB - Glucosamine is effective in the treatment of osteoarthritis; however, its effect on osteoporosis remains unclear. Decreased activity of osteoblasts is the main cause of osteoporosis. Here, we examined the effects of glucosamine on osteoblasts. The potential underlying mechanisms were explored. The results showed that glucosamine had a biphasic effect on the viability of hFOB1.19 osteoblasts. At low concentrations (<0.6 mM), glucosamine induced hFOB1.19 cell proliferation, whereas at high concentrations (>0.8 mM) it induced apoptosis. The autophagy inhibitor 3-methyladenine (3-MA) was used to verify that glucosamine modulated hFOB1.19 cell viability via autophagy. The induction of apoptosis by high concentrations of glucosamine was significantly exacerbated by 3-MA, whereas the promotion of cell proliferation by low concentrations of glucosamine was significantly suppressed by 3-MA. Autophagy was examined by western blot detection of autophagy-related proteins including LC3, Beclin-1, and SQSTM1/p62 and by immunofluorescence analysis of autophagosomes. Glucosamine activated autophagy in a time- and concentration-dependent manner. Investigation of the underlying mechanism showed that glucosamine inhibited the phosphorylation of m TOR in a concentration-dependent manner within 48 h, and rapamycin significantly inhibited the phosphorylation of m-TOR. These results demonstrated that glucosamine promoted hFOB1.19 cell proliferation and increased autophagy by inhibiting the m-TOR pathway, suggesting its potential as a therapeutic agent for osteoporosis. PMID- 29334672 TI - Oxidative and interactive challenge of cadmium and ocean acidification on the smooth scallop Flexopecten glaber. AB - Ocean acidification (OA) may affect sensitivity of marine organisms to metal pollution modulating chemical bioavailability, bioaccumulation and biological responsiveness of several cellular pathways. In this study, the smooth scallop Flexopecten glaber was exposed to various combinations of reduced pH (pH/pCO2 7.4/~3000 MUatm) and Cd (20 MUg/L). The analyses on cadmium uptake were integrated with those of a wide battery of biomarkers including metallothioneins, single antioxidant defenses and total oxyradical scavenging capacity in digestive gland and gills, lysosomal membrane stability and onset of genotoxic damage in haemocytes. Reduced pH slightly increased concentration of Cd in scallop tissues, but no effects were measured in terms of metallothioneins. Induction of some antioxidants by Cd and/or low pH in the digestive gland was not reflected in variations of the total oxyradical scavenging capacity, while the investigated stressors caused a certain inhibition of antioxidants and reduction of the scavenging capacity toward peroxyl radical in the gills. Lysosomal membrane stability and onset of genotoxic damages showed high sensitivity with possible synergistic effects of the investigated factors. The overall results suggest that indirect effects of ocean acidification on metal accumulation and toxicity are tissue-specific and modulate oxidative balance through different mechanisms. PMID- 29334673 TI - Copper bioaccumulation and biokinetic modeling in marine herbivorous fish Siganus oramin. AB - Marine herbivorous fish directly consume macroalgae, which commonly accumulate high levels of trace metals in polluted areas. We proposed that herbivorous fish could be better candidates for biomonitoring marine metal pollution than carnivorous fish. To date, the trophic transfer of Cu from macroalgae to marine herbivorous fish is unclear. In this study, the kinetics of Cu bioaccumulation in a widespread marine herbivorous fish, Siganus oramin, were investigated, and biokinetic modeling was applied to estimate the Cu levels in the fish sampled from different sites and seasons. The results showed that Cu accumulation in the fish was linearly correlated to the dietary Cu levels in the different prey species, which were proportional to the waterborne Cu concentrations. The Cu found in the subcellular trophically available metal fraction (TAM) in the prey contributed the largest proportion of accumulated Cu in S. oramin. The dietary assimilation efficiencies (AEs) of Cu were 15.56 +/- 1.76%, 13.42 +/- 2.86%, and 21.36 +/- 1.47% for Ulva lactuca, Gracilaria lemaneiformis and Gracilaria gigas, respectively. The calculated waterborne uptake rate constant (ku) of Cu was 0.023 +/- 0.011 L g-1 d-1, and the efflux rate constant (ke) was 0.055 +/- 0.021 d-1. Dietary Cu accounted for 60%-75% of the body Cu in S. oramin, suggesting that dietary uptake could be the primary route for Cu bioaccumulation in herbivorous fish. The biokinetic model demonstrated that the Cu concentrations in the water and fish presented a positive linear relationship, which was in line with our field investigation along the coastal areas of South China. Therefore, we suggested that S. oramin could be used as a biomonitoring organism for Cu pollution in the marine environment. However, the heterogeneities between the predicted levels and the measured levels of Cu implied that seasonal changes should be taken into account to improve the accuracy of the model. PMID- 29334674 TI - Relationship between jumping abilities and skeletal muscle architecture of lower limbs in humans: Systematic review and meta-analysis. AB - The aim of this study was to examine the influence of skeletal muscle architecture (SMA) features measured by 2-D ultrasonography on jumping performance in humans. A systematic review and meta-analysis was conducted, registry number: CRD42016043602. The scientific literature was systematically searched in eight databases, last run on March 14th, 2017. Cross-sectional studies focused on the association between SMA features and vertical jumping performance were selected. A random-effects model was used to analyze the influence of lower-limb SMA and maximal jump height. A total of 11 studies were included in the qualitative synthesis and 6 studies were selected for meta analysis. 250 correlations were reviewed across studies. The vast majority were either not statistically significant (185; 74%), weak or very weak (169; 68%) for different jump modalities; counter-movement jump (CMJ), squat jump (SJ), and drop jump. There was insufficient data to perform meta-analysis on muscles other than vastus lateralis for CMJ and SJ. The meta-analyses did not yield any significant association between vastus lateralis SMA and SJ height. Only a significant overall association was shown between vastus lateralis thickness and CMJ height (summary-r = 0.28; 95% confidence interval (CI) = -0.05 to 0.48; p = .059) for a 90% CI level. No differences were found between summary-r coefficients for SMA parameters and jump height during both jumps (CMJ: chi2 = 2.43; df = 2; p = .30; SJ: chi2 = 0.45; df = 2; p = .80) with a low heterogeneity ratio. Current evidence does not suggest a great influence of lower-limb SMA on vertical jumping performance in humans. PMID- 29334675 TI - Effects of running retraining on biomechanical factors associated with lower limb injury. AB - Injury risk is an important concern for runners; however, limited evidence exists regarding changes to injury risk following running style retraining. Biomechanical factors, such as absolute peak free moment, knee abduction impulse, peak foot eversion and foot eversion excursion, have been shown to predict lower limb injury. The aim of this study was to assess the effects of Pose running retraining on biomechanical factors associated with lower limb running injury. Twenty uninjured recreational runners were pair-matched based on their five km run time performance and randomly assigned to control (n = 10) and intervention (three 2-h Pose running retraining sessions) groups (n = 10). Three dimensional kinetic and kinematic data were collected from all participants running at relative (REL: 1.5 km.h-1 below respiratory compensation point) and absolute (ABS: 4.5 m.s-1) speeds. Biomechanical factors associated with lower limb injury, as well as selected kinematic variables (to aid interpretation), were assessed. Following a six-week, non-coached time-period, all assessments were repeated. No changes to the biomechanical factors associated with lower limb injury examined in this study were observed (P > .05). Intervention group participants (presented as pre- and post-intervention respectively) exhibited an increased foot strike index (REL speed: 21.79-42.66%; ESW = 4.73; P = .012 and ABS speed: 22.38-46.98%; ESW = 2.83; P = .008), reduced take-off distance (REL speed: -0.35 to -0.32 m; ESW = 0.75; P = .012), increased knee flexion at initial contact (REL speed: 14.11 to -18.50 degrees ; ESW = -0.88; P = .003), increased ankle dorsiflexion at terminal stance (REL speed: -33.61 to -28.35 degrees ; ESW = 1.57; P = .036) and reduced stance time (ABS speed: 0.21-0.19 s; ESW = -0.85; P = .018). Finally, five km run time did not change (22:04-22:19 min; ESW = 0.07; P = .229). It was concluded that following Pose running retraining, retrained participants adopted a running style that was different to their normal style without changing specific, biomechanical factors associated with lower limb injury or compromising performance. PMID- 29334676 TI - Statins in the treatment of COPD and asthma-where do we stand? AB - Asthma and chronic obstructive pulmonary disease (COPD) are the two most prevalent obstructive lung diseases that account for tremendous morbidity and mortality throughout the world. These diseases have strong inflammatory components, with multiple prior studies showing elevated levels of various inflammatory markers and cells in those with COPD and asthma. Therefore, efforts to target inflammation in management of these diseases are of great interest. Statins, which define a class of drugs that are HMG-CoA inhibitors, are used to decrease cholesterol levels and have also been described to have many pleotropic effects that include anti-inflammatory and anti-oxidative properties. These properties have led to multiple studies looking at the potential use of statins in decreasing inflammation in many diseases, including COPD and asthma. This review aims to address the current evidence behind the potential use of statins in the treatment of asthma and COPD. PMID- 29334677 TI - Utilizing journal club to facilitate critical thinking in pre-clinical medical students. PMID- 29334679 TI - The IL20 Genetic Polymorphism Is Associated with Altered Clinical Outcome in Septic Shock. AB - BACKGROUND: The IL10 family of genes includes crucial immune regulators. We tested the hypothesis that single nucleotide polymorphisms (SNPs) in IL10, IL19, IL20, and IL24 of the IL10 family gene cluster alter the clinical outcome of septic shock. METHODS: Patients with septic shock (n = 1,193) were genotyped for 13 tag SNPs of IL10, IL19, IL20, and IL24. IL20 gene expression was measured in genotyped lymphoblastoid cells in vitro. Cardiac surgical ICU patients (n = 981) were genotyped for IL20 rs2981573 A/G. The primary outcome variable was 28-day mortality. RESULTS: Patients with the G allele of IL20 rs2981573 had a significantly increased hazard of death over the 28-day period compared to patients with the A allele in the septic shock cohort (adjusted hazard ratio 1.27; 95% confidence interval 1.10-1.47; p = 8.0 * 10-4). Patients with the GG genotype had more organ dysfunction (p < 0.05). The GG genotype was associated with increased IL20 gene expression in stimulated lymphoblastoid cells in vitro (p < 0.05). The cardiac surgical ICU patients with the GG genotype had an increased length of ICU stay (p = 0.032). CONCLUSIONS: The GG genotype of IL20 rs2981573 SNP was associated with increased IL20 gene expression and increased adverse outcomes in patients with septic shock and following cardiac surgery. PMID- 29334678 TI - Genome Evolution Analysis of Recurrent Testicular Malignant Mesothelioma by Whole Genome Sequencing. AB - BACKGROUND/AIMS: Malignant mesothelioma of the tunica vaginalis testis is a rare and lethal disease. The genomic characteristics and genetic changes of tumor cells during the progression of this disease are unknown. METHODS: we performed whole-genome sequencing of four successive tumor samples derived from surgery and a blood sample in a single patient. RESULTS: All tumors were found to have significant C-to-T and T-to-C mutations, and amplification of copy number in chromosomes 1 and 12 were notified in all tumor samples. Subclone analysis revealed a parallel evolution of the tumor in this patient. We also identified some mutations in mesothelioma-associated genes such as KIF25, AHNAK, and PRDM2. CONCLUSIONS: The results showed a comprehensive genomic change in malignant mesothelioma of the tunica vaginalis testis and provide a better understanding of the clonal evolution during tumor recurrence and metastasis. PMID- 29334680 TI - Blood Pressure Variability in Acute Ischemic Stroke: Influence of Infarct Location in the Insular Cortex. AB - BACKGROUND: The aim of this study was to elucidate the influence of insular infarction on blood pressure (BP) variability and outcomes according to the region of the insular cortex affected. METHODS: A total of 90 patients diagnosed with acute unilateral ischemic stroke were registered. The BP variability was calculated over 24 h after admission (hyperacute) and for 2-3 days after admission (acute). Patients were classified into groups of right and left, and then right anterior, right posterior, left anterior, and left posterior insular infarction. RESULTS: Patients with insular infarction showed a significantly larger infarct volume, higher modified Rankin scale scores, and lower SD and coefficient of variation (CV) of -systolic BP in the hyperacute phase than shown by patients without insular infarction (p < 0.01, p < 0.01, p = 0.02, and p = 0.03, respectively). The SD and CV of systolic BP in the hyperacute phase showed significant differences among the 3 groups with right insular infarction, with left insular infarction, and without insular infarction (p < 0.05 and p < 0.05, respectively). There was a tendency for the systolic BP variability to be lower in patients with right anterior insular infarction than in patients with infarcts in other areas. CONCLUSION: The right insular cortex, especially the anterior part, might be a hub for autonomic nervous regulation. PMID- 29334681 TI - Is There Any Common Pathophysiology between Central Nervous System Lupus and Parkinson's Disease? PMID- 29334682 TI - Body Mass Index and Plasma P-Selectin before Coronary Stenting Predict High Residual Platelet Reactivity at 6 Months on Dual Antiplatelet Therapy. AB - BACKGROUND: High residual platelet reactivity (HRPR) during dual antiplatelet therapy (DAPT) may impact clinical outcomes following percutaneous coronary interventions (PCI). However, whether any biomarkers assessed before PCI at DAPT loading may predict delayed maintenance HRPR is not clear. OBJECTIVE: The aim of this study was to determine whether conventional clinical or laboratory indices at loading before stenting may predict HRPR at 6 months of maintenance DAPT. METHODS: The study was designed on a single-center prospective cohort, and included 94 pre-PCI patients. All patients underwent elective PCI with drug eluting stent implantation, and received DAPT with aspirin and clopidogrel. Platelet reactivity was assessed with 5 MUmol/L of adenosine diphosphate-induced light transmission aggregometry before PCI, but after 24 h of DAPT loading, and repeated at 6 months. Baseline clinical characteristics, CYP2C19 polymorphism, C reactive protein, soluble P-selectin, CD40L, interleukin-6, PAI-1 levels, and von Willebrand factor activity were analyzed. RESULTS: The incidence (light transmission aggregometry <50%) of prestent HRPR was 16%. By univariate regression, body mass index (BMI; p = 0.02), total cholesterol (p = 0.01), low density lipoproteins (p = 0.004), CYP2C19*2 allele carriage (p = 0.006), soluble P-selectin (p = 0.009), and von Willebrand factor (p = 0.04) were linked to future HRPR. However, multivariate regression analysis suggested that only BMI and P-selectin were independent predictors of HRPR. CONCLUSIONS: Platelet reactivity before elective stenting is associated with numerous biomarkers; however, only BMI and soluble P-selectin were independent predictors of future HRPR during maintenance-phase DAPT. This may be important for future tailored antiplatelet strategies in patients with metabolic syndrome and diabetics. PMID- 29334683 TI - Epigenetic Silencing of the MLH1 Promoter in Relation to the Development of Gastric Cancer and its use as a Biomarker for Patients with Microsatellite Instability: a Systematic Analysis. AB - BACKGROUND/AIMS: Human mutL homolog 1 (MLH1) promoter methylation was reported in gastric cancer (GC). This study determined the clinicopathological, prognostic, and diagnostic effects of MLH1 promoter methylation in GC. METHODS: The combined odds ratio (OR) or hazard ratio (HR) and their corresponding 95% confidence intervals (95% CI) were calculated. The pooled sensitivity, specificity, and area under the curve (AUC) were analyzed. RESULTS: A total of 4654 GC patients and 3669 non-malignant controls were identified in this systematic analysis. MLH1 promoter methylation was significantly higher in GC samples than in gastric adenomas, chronic gastritis, adjacent tissues, normal gastric mucosa, and normal healthy blood samples, but it exhibited a similar frequency in GC vs. intestinal metaplasia and dysplasia samples. MLH1 promoter methylation correlated with age and microsatellite instability (MSI), but it was not associated with gender, H. pylori infection, smoking, drinking behaviors, pathological histology, tumor differentiation, clinical stage, lymph node status, distant metastasis, or overall survival of GC. MLH1 promoter methylation exhibited a poor sensitivity value (< 0.5) in patients with GC compared with adjacent tissues, gastric adenomas, chronic gastritis, normal gastric mucosa, and normal healthy blood samples. The pooled sensitivity, specificity, and AUC of MLH1 promoter methylation in GC with MSI vs. GC with microsatellite stability (MSS) samples were 0.64, 0.96, and 0.90, respectively. CONCLUSIONS: Our results suggest that the detection of MLH1 promoter methylation may be a potential prognostic biomarker for GC patients with MSI. PMID- 29334684 TI - Aberrant Connectivity in Mild Cognitive Impairment and Alzheimer Disease Revealed by Multimodal Neuroimaging Data. AB - BACKGROUND: Making use of multimodal data simultaneously to understand the neural mechanism of mild cognitive impairment (MCI) has been in the focus nowadays. The simultaneous use of multimodal data can take advantage of each modality which may only provide the view of one specific aspect of the brain. OBJECTIVE: To this end, the present study used structural magnetic resonance imaging (sMRI), fluorodeoxyglucose positron emission tomography (FDG-PET) and florbetapir PET to reveal the integrated brain network between MCI and normal controls (NCs). METHODS: In this study, 116 MCI, 116 NC and 116 Alzheimer disease (AD) subjects from the Alzheimer's Disease Neuroimaging Initiative were included for the evaluation of the brain covariance graphic model. Sparse inverse covariance estimation was utilized to get the graphic model. RESULTS: The connections among different brain regions were quite different between NC and MCI or between MCI and AD subjects (p < 0.01). The number of connections, which were represented by the covariance among different brain regions in the graphic model, decreased from NC to MCI and then AD, especially in the temporal lobe, occipital-parietal lobe and parietal-temporal lobe. CONCLUSION: These findings are good evidence to reveal the difference between MCI or AD and NC, and enhance the understanding of MCI. PMID- 29334685 TI - Observation of a phononic quadrupole topological insulator. AB - The modern theory of charge polarization in solids is based on a generalization of Berry's phase. The possibility of the quantization of this phase arising from parallel transport in momentum space is essential to our understanding of systems with topological band structures. Although based on the concept of charge polarization, this same theory can also be used to characterize the Bloch bands of neutral bosonic systems such as photonic or phononic crystals. The theory of this quantized polarization has recently been extended from the dipole moment to higher multipole moments. In particular, a two-dimensional quantized quadrupole insulator is predicted to have gapped yet topological one-dimensional edge modes, which stabilize zero-dimensional in-gap corner states. However, such a state of matter has not previously been observed experimentally. Here we report measurements of a phononic quadrupole topological insulator. We experimentally characterize the bulk, edge and corner physics of a mechanical metamaterial (a material with tailored mechanical properties) and find the predicted gapped edge and in-gap corner states. We corroborate our findings by comparing the mechanical properties of a topologically non-trivial system to samples in other phases that are predicted by the quadrupole theory. These topological corner states are an important stepping stone to the experimental realization of topologically protected wave guides in higher dimensions, and thereby open up a new path for the design of metamaterials. PMID- 29334686 TI - Fat Mass and Obesity-Related Gene Variants rs9939609 and rs7185735 are Associated with Second-Generation Antipsychotic-Induced Weight Gain. AB - INTRODUCTION: Weight gain is a limiting and frequent adverse effect of second generation antipsychotic therapy. Identifying genetic risk factors would significantly improve pharmacotherapy. METHODS: We focused on rs7185735 and rs9939609, 2 common single nucleotide polymorphisms of the fat mass and obesity associated (FTO) gene reported to be associated with obesity. Three-hundred fifty Caucasian inpatients were included in a naturalistic study. RESULTS: After 4 weeks of treatment, we did not observe any significant association of polymorphisms with weight change in the whole study population (p>0.05). In a subpopulation without additional weight-inducing comedication (n=178), G-allele carriers of rs7185735 gained 3.4 times more weight (1.69 kg+/-3.1 kg, p=0.019) than AA genotypes (0.49 kg+/-3.1 kg). A-allele carriers of rs9939609 gained 3.1 times more weight (1.65 kg+/-3.1 kg, p=0.029) than TT genotypes (0.54 kg+/-3.2 kg). DISCUSSION: Our findings confirm the role of the FTO gene as a high potential risk factor for obesity and indicate a value for predicting a weight gain induced by second-generation antipsychotics. Further, we detected an additive effect of FTO rs7185735 and MC4R rs17782313. PMID- 29334687 TI - Cognitive Deficits in Methamphetamine Users: How Strong is The Evidence? AB - Methamphetamine use has spread in many European countries and the United States. The current review provides a summary and critical analysis of research on cognitive deficits associated with methamphetamine, also known as "crystal meth." The literature search performed for this review led us to the hypothesis that methamphetamine use is associated with persistent changes in brain metabolism that result in various impairments, such as deficits in memory, attention, and concentration. The dopaminergic system in particular seems to be affected. Some studies indicate that cognitive impairments may improve when users become abstinent, but results of other studies are conflicting. This review discusses these findings and the consequences for the development of a specific addiction treatment for methamphetamine. PMID- 29334688 TI - [Guideline for the Diagnosis and Treatment of Asthma - Guideline of the German Respiratory Society and the German Atemwegsliga in Cooperation with the Paediatric Respiratory Society and the Austrian Society of Pneumology]. PMID- 29334689 TI - 'Stick with your own kind, or hang with the locals?' Implications of shoaling strategy for tropical reef fish on a range-expansion frontline. AB - Range shifts of tropical marine species to temperate latitudes are predicted to increase as a consequence of climate change. To date, the research focus on climate-mediated range shifts has been predominately dealt with the physiological capacity of tropical species to cope with the thermal challenges imposed by temperate latitudes. Behavioural traits of individuals in the novel temperate environment have not previously been investigated, however, they are also likely to play a key role in determining the establishment success of individual species at the range-expansion forefront. The aim of this study was to investigate the effect of shoaling strategy on the performance of juvenile tropical reef fishes that recruit annually to temperate waters off the south east coast of Australia. Specifically, we compared body-size distributions and the seasonal decline in abundance through time of juvenile tropical fishes that shoaled with native temperate species ('mixed' shoals) to those that shoaled only with conspecifics (as would be the case in their tropical range). We found that shoaling with temperate native species benefitted juvenile tropical reef fishes, with individuals in 'mixed' shoals attaining larger body-sizes over the season than those in 'tropical-only' shoals. This benefit in terms of population body-size distributions was accompanied by greater social cohesion of 'mixed' shoals across the season. Our results highlight the impact that sociality and behavioural plasticity are likely to play in determining the impact on native fish communities of climate-induced range expansion of coral reef fishes. PMID- 29334690 TI - Intestinal metabolism of Polygonum cuspidatum in vitro and in vivo. AB - Rhizoma et Radix Polygoni Cuspidati (RRPC) is commonly prescribed for the treatment of amenorrhea, arthralgia, jaundice and abscess in traditional Chinese medicine. Previous pharmacological studies have indicated that polyphenols are the main pharmacological active ingredients in RRPC. Meanwhile, the poor bioavailability of polyphenols in RRPC implies that those components are probably metabolized by intestinal bacteria before absorption. However, there is rather limited information about RRPC''s metabolites produced by intestinal bacteria and the intestinal absorbed constituents. In the present study, the metabolites were characterized after the aqueous extract of RRPC was incubated with the crude enzyme of human intestinal bacteria in vitro. The metabolic characteristics of glycosides in RRPC were figured out by comparing the metabolic profiles of emodin 8-O-beta-d-glucopyranoside and polydatin between aqueous extract of RRPC and equivalent amounts of these two glycosides. The transitional constituents absorbed into blood were investigated in rats via intraduodental administration and portal vein intubation. A total of 38 prototype components and 43 metabolites were detected and characterized in vivo. The overall results demonstrated that the intestinal bacteria played an important role in the metabolism of RRPC, and the main metabolic pathways were hydrolysis in vitro, glucuronidation and sulfation in vivo. PMID- 29334691 TI - A meta-analysis of the effects of bariatric surgery on fracture risk. AB - Bariatric surgery effectively treats morbid obesity. However, the negative effect of this surgery on the bone is concerning. The aim of this meta-analysis was to investigate the fracture risk associated with bariatric surgery in morbidly obese subjects. Relevant studies published from database inception to September 2017 were identified in PubMed, Embase and the Cochrane Library. The Newcastle-Ottawa Scale was used to evaluate the quality of the observational studies, and the Jadad score evaluated randomized controlled trials. Among the 1003 studies initially identified, five observational trials and one randomized controlled trial were eligible for inclusion. All studies included in the meta-analysis were considered high quality. Risk for any type of fracture was higher in the surgical group than in the non-surgical group (risk ratio [RR] 1.29, 95% confidence interval [CI] 1.18-1.42). After surgery, the fracture risk in non-vertebral sites was significantly increased, especially in the upper limbs (RR 1.42, 95% CI 1.08 1.87; and RR 1.68, 95% CI 1.15-2.45). Compared with those with restrictive procedures, subjects who underwent mixed restrictive and malabsorptive procedures tended to have an increased fracture risk (RR 1.54, 95% CI 0.96-2.46). To conclude, bariatric surgery is associated with an increased risk of total and non vertebral fractures, especially in the upper limbs. PMID- 29334692 TI - Body mass index, abdominal adiposity, weight gain and risk of developing hypertension: a systematic review and dose-response meta-analysis of more than 2.3 million participants. AB - OBJECTIVE: This study aimed to test the association between anthropometric measures and risk of developing hypertension. METHODS: We did a systematic search using PubMed and Scopus, from inception up to January 2017. Prospective cohort studies reporting the risk estimates of hypertension for three or more quantitative categories of indices of general and abdominal adiposity were included. Summary relative risks were calculated using random-effects models. RESULTS: Fifty-seven prospective cohort studies were included. Summary relative risks were 1.49 (95% confidence interval [CI]: 1.41, 1.58; I2 = 97.4%, n = 50) for a five-unit increment in body mass index, 1.27 (95%CI: 1.15, 1.39; I2 = 95.0%, n = 14) for a 10-cm increment in waist circumference, 1.16 (95%CI: 1.09, 1.23; I2 = 77.8%, n = 5) for weight gain equal to a one-unit increment in BMI, and 1.37 (95%CI: 1.24, 1.51; I2 = 76.4%, n = 8) and 1.74 (95%CI: 1.35, 2.13; I2 = 58.9%, n = 4) for a 0.1-unit increment in waist-to-hip ratio and waist-to height ratio, respectively. The risk of hypertension increased continuously with increasing all anthropometric measures, and also along with weight gain. CONCLUSION: Being as lean as possible within the normal body mass index range may be the best suggestion in relation to primary prevention of hypertension. PMID- 29334693 TI - The frequency of family meals and nutritional health in children: a meta analysis. AB - Findings on the relationship between family meal frequency and children's nutritional health are inconsistent. The reasons for these mixed results have to date remained largely unexplored. This systematic review and meta-analysis of 57 studies (203,706 participants) examines (i) the relationship between family meal frequency and various nutritional health outcomes and (ii) two potential explanations for the inconsistent findings: sociodemographic characteristics and mealtime characteristics. Separate meta-analyses revealed significant associations between higher family meal frequency and better overall diet quality (r = 0.13), more healthy diet (r = 0.10), less unhealthy diet (r = -0.04) and lower body mass index, BMI (r = -0.05). Child's age, country, number of family members present at meals and meal type (i.e. breakfast, lunch or dinner) did not moderate the relationship of meal frequency with healthy diet, unhealthy diet or BMI. Socioeconomic status only moderated the relationship with BMI. The findings show a significant relationship between frequent family meals and better nutritional health - in younger and older children, across countries and socioeconomic groups, and for meals taken with the whole family vs. one parent. Building on these findings, research can now target the causal direction of the relationship between family meal frequency and nutritional health. PMID- 29334694 TI - Home alone: a systematic review and meta-analysis on the effects of individual housing on body weight, food intake and visceral fat mass in rodents. AB - Rats and mice are widely used to study environmental effects on psychological and metabolic health. Study designs differ widely and are often characterized by varying (social) housing conditions. In itself, housing has a profound influence on physiology and behaviour of rodents, affecting energy balance and sustainable metabolic health. However, evidence for potential long-term consequences of individual versus social housing on body weight and metabolic phenotype is inconsistent. We conducted a systematic literature review and meta-analyses assessing effects of individual versus social housing of rats and mice, living under well-accepted laboratory conditions, on measures of metabolic health, including body weight, food intake and visceral adipose tissue mass. Seventy-one studies were included in this review; 59 were included in the meta-analysis. Whilst housing did not affect body weight, both food intake and visceral adipose tissue mass were significantly higher in individually compared with socially housed animals. A combination of emotional stress and lack of social thermoregulation likely contributed to these effects. Increased awareness of consequences and improved specifications of housing conditions are necessary to accurately evaluate efficacy of drugs, diets or other interventions on metabolic and other health outcomes because housing conditions are rarely considered as possible moderators of reported outcomes. PMID- 29334695 TI - Complex interplay among adiposity, insulin resistance and bone health. AB - Obesity and osteoporosis are common public health problems. Paradoxically, while obesity is associated with higher bone density, type 2 diabetic obese individuals have an increased fracture risk. Although obesity and insulin resistance co exist, some obese individuals remain insulin-sensitive. We suggest that the apparent paradox relating obesity, bone density and fracture risk in type 2 diabetes may be at least partly influenced by differences in bone strength and quality between insulin-resistant and insulin-sensitive obese individuals. In this review, we focus on the complex interplay between, adiposity, insulin resistance and osteoporotic fracture risk and suggest that this is an important area of study that has implications for individually tailored and targeted treatment to prevent osteoporotic fracture in obese type 2 diabetic individuals. PMID- 29334696 TI - Mast cells participate in chronic low-grade inflammation within adipose tissue. AB - Obesity is reckoned as one of the civilization diseases, posing a considerable global health issue. Evidence points towards a contribution of multitude immune cell populations in obesity pathomechanism and the development of chronic low grade inflammation in the expanded adipose tissue. Notably, adipose tissue is a reservoir of mast cells which number in individuals with obesity particularly increased. Some of them tend to degranulation what generate secretion of strong pro-inflammatory and regulatory mediators, as well as cytokines/chemokines. Several lines of evidence suggest that mast cells are strictly associated with pro-inflammatory status in adipose tissue by their indirect impact on immune cell attraction and activation. Furthermore, mast cells affect adipose tissue remodelling and fibrosis by adipocyte differentiation, fibroblast proliferation and enhancing extracellular matrix proteins expression. This review will summarize current knowledge on mast cell features and their role in the development of chronic low-grade inflammation within adipose tissue. PMID- 29334697 TI - Sepsis-induced activation of endogenous GLP-1 system is enhanced in type 2 diabetes. AB - BACKGROUND: High levels of circulating GLP-1 are associated with severity of sepsis in critically ill nondiabetic patients. Whether patients with type 2 diabetes (T2D) display different activation of the endogenous GLP-1 system during sepsis and whether it is affected by diabetes-related metabolic parameters are not known. METHODS: Serum levels of GLP-1 (total and active forms) and its inhibitor enzyme sDPP-4 were determined by ELISA on admission and after 2 to 4 days in 37 sepsis patients with (n = 13) and without T2D (n = 24) and compared to normal healthy controls (n = 25). Correlations between GLP-1 system activation and clinical, inflammatory, and diabetes-related metabolic parameters were performed. RESULTS: A 5-fold (P < .001) and 2-fold (P < .05) increase in active and total GLP-1 levels, respectively, were found on admission as compared to controls. At 2 to 4 days from admission, the level of active GLP-1 forms in surviving patients were decreased significantly (P < .005), and positively correlated with inflammatory marker CRP (r = 0.33, P = .05). T2D survivors displayed a similar but more enhanced pattern of GLP-1 response than nondiabetic survivors. Nonsurvivors demonstrate an early extreme increase of both total and active GLP-1 forms, 9.5-fold and 5-fold, respectively (P < .05). The initial and late levels of circulating GLP-1 inhibitory enzyme sDPP-4 were twice lower in all studied groups (P < .001), compared with healthy controls. CONCLUSIONS: Taken together, these data indicate that endogenous GLP-1 system is activated during sepsis. Patients with T2D display an enhanced and prolonged activation as compared to nondiabetic patients. Extreme early increased GLP-1 levels during sepsis indicate poor prognosis. PMID- 29334698 TI - Endoscopic ultrasound and the liver: current applications and beyond. AB - The diagnosis and management of many gastrointestinal conditions has been augmented by the development of endoscopic ultrasound. Its role in the diagnosis and management of liver disease has been somewhat limited, but with the rapid development of therapeutic advancements it has quickly emerged as a useful tool in the management of complex hepatic conditions. This includes its use in the management of complications of portal hypertension as well as its use in liver lesions and cancer. In this paper, we review case studies, case series and trials for hepatic applications of endoscopic ultrasound to provide an overview of its utilization in this field and demonstrating its more novel applications for future use. PMID- 29334699 TI - Tokyo Guidelines 2018: updated Tokyo Guidelines for the management of acute cholangitis/acute cholecystitis. PMID- 29334700 TI - [Hygiene and health: current situation and prospective]. PMID- 29334701 TI - [Pay attention to the nutrition and health of pregnancy women with advanced age]. PMID- 29334702 TI - [Prevalence of calf muscle cramps and influencing factors for pregnant women in China during 2010-2012]. AB - Objective: To investigate the prevalence of calf muscle cramps and possible influencing factors for pregnant women in China. Methods: Using a multi-stage stratified probability proportional to size cluster randomization sampling method during 2010-2012. A total of 3 582 pregnant women were investigated at 150 counties from 31 provinces in China mainland. Information on calf muscle cramps, demographic socio-economic status, pregnancy information, and the physical activities was collected through questionnaires. The semi-quantitative food frequency questionnaire (FFQ) was used to collect food intake of pregnant women. Dynamic cluster analysis was used to assess dietary pattern. Multiple logistic regression was used to investigate the possible influencing factors for calf muscle cramps. Results: The prevalence of calf muscle cramps was 32.9% (1 180/3 582) in Chinese pregnant women, which was 11.6% (87/748), 28.2% (420/1 492), and 50.2% (673/1 342), respectively, during the first, second and third trimester. There were significant differences between them (chi(2)=349.16, P<0.001). Dietary patterns of the pregnant women were classified into three groups, which called relatively balanced pattern, high vegetables and fruits pattern, and high dairy pattern. Among the three groups, the prevalence of calf muscle cramps was 32.0% (952/2 971), 37.2% (186/500), and 37.8% (42/111), with significant differences (chi(2)=6.39, P=0.041). The OR (95%CI) values of calf muscle cramps in the second and third trimester was 2.96 (2.28-3.83), and 8.02 (6.16-10.44), respectively, comparing with the first trimester. The OR (95%CI) values of calf muscle cramps in the women taking calcium before pregnant was 1.45 (1.19-1.76), comparing with the one who was not taken. The OR (95%CI) values of calf muscle cramps in the women who had been diagnosed by pregnancy-induced hypertension was 5.76 (2.06 16.12), comparing with the one who had not been diagnosed. The OR (95%CI) values of calf muscle cramps in the high vegetables and fruits pattern and high dairy pattern was 1.13 (0.91-1.41), and 1.18 (0.76-1.81), respectively, comparing with the relatively balanced pattern. Conclusion: The prevalence of calf muscle cramps was relatively high in Chinese pregnant women, which was significantly different among three trimesters. The residential areas, occupation, and pregnancy-induced hypertension might be related to the prevalence of calf muscle cramps. However, there was no significant difference among different dietary patterns. PMID- 29334703 TI - [The influencing factors of anemia for pregnant women between 2010-2012 in China]. AB - Objective: To investigate the prevalence of anemia and related risk factors for pregnant women in China. Method: Based on Chinese National Nutrition and Health Surveillance 2010-2012, a total of 3 501 pregnant women were investigated from 150 counties of 31 provinces, municipalities and autonomous regions in China, using a multi-stage stratified cluster randomization sampling method. General information of pregnant women, health status, and food intake during the gestation, was collected through a questionnaire investigation. 6 ml fasting venous blood was collected for the determination of hemoglobin concentration. Data were analyzed using multiple logistic regression to investigate the prevalence of anemia and the related influencing factors. Results: The 605 of 3 501 pregnant women had anemia. The prevalence of anemia was 17.2%; and mild anemia accounted for about 61.0% (369/605). Compared with the pregnant women living in the large cities, the OR (95%CI) of those living in the poor rural areas was 1.46 (1.08-1.98). Compared with the pregnant women living in the south area of China, the OR (95%CI) of those living in the north area of China was 1.39 (1.15-1.68); Compared with the pregnant women in the first trimester, the OR (95%CI) of those in the second trimester and the third trimester were 1.79 (1.33 2.43) and 2.11 (1.56-2.85), respectively. The OR (95%CI) of pregnant women who had used folic acid supplementation within the 6 months prior to gestation was 0.76 (0.63-0.93) compared with those who had not used. Conclusion: From 2010 to 2012, the epidemic characteristics of anemia was mild for the pregnant women in China, and pregnant women residential areas, periods of pregnancy and whether to take folic acid were related to anemia. PMID- 29334704 TI - [Status and related factors for gestational weight gain of Chinese pregnant women during 2010-2012]. AB - Objective: To examine the status and related factors for gestational weight gain of Chinese pregnant women at different trimesters in 2010-2012. Methods: Participants were from Chinese National Nutrition and Health Surveillance in 2010 2012. Using a multi-stage stratified cluster random sampling method, we recruited 2 805 singleton pregnant women with gestational age 13 weeks or more from 31 provinces of China. A standard questionnaire was used to collect general information and pre-pregnancy weight; body weight and height of pregnant women were measured using a unified weighing scale and stadiometer, dietary intake during the previous year was collected using a food frequency questionnaire. A multiple logistic regression was used to analyze potential factors associated with appropriate gestational weight gain. Results: Among 2 805 pregnant women, 1 441 were in the second (13-27 weeks) and 1 364 in the third trimesters (>=28 weeks) . In the 2(nd) trimester, 229 cases (15.9%), 440 cases (30.5%) and 772 cases (53.6%) were insufficient gestational weight gain, appropriate gestational weight gain and excessive gestational weight gain respectively. So were 256 cases (18.8%), 474 cases (34.8%), 634 cases (46.5%) in the 3(rd) trimester respectively. In the multivariate unconditional logistic model, less fruit intake was associated with insufficient weight gain for women in the 2(nd) trimester (OR (95%CI): 1.58 (1.06-2.34)). Pregnant women with Han ethnicity who live in the small/medium city had lower risk of insufficient weight gain in the 3(rd) trimester (OR (95%CI): 0.58 (0.34-0.98)). Those pregnant women with physical activity <1 hour/day had a higher risk of excessive weight gain (OR (95%CI): 1.33 (1.02-1.73)). Conclusion: The prevalence of appropriate gestational weight gain was low in China. Our study suggests that pregnant weight gain is associated with fruit intake, types of residential area and physical activity. PMID- 29334705 TI - [Gestational weight gain and optimal ranges in Chinese mothers giving singleton and full-term births in 2013]. AB - Objective: To analyze the status of gestational weight gain (GWG) among Chinese mothers who gave singleton and full-term births, and to look at optimal GWG ranges. Methods: In 2013, using the multi-stage stratified and population proportional cluster sampling method, we investigated 8 323 mother-child pairs at their 0-24 months postpartum from 55 counties (cities/districts) of 30 provinces (except Tibet) in mainland China. Questionnaire was used to collect data on body weight before pregnancy and delivery, diseases during gestation, hemorrhage or not at postpartum, child birth weight and length, and other information about pregnant outcomes. We measured mother's body weight and height, and child's body weight and length. Based on 'Chinese Adult Body Weight Standard', we divided mothers into four groups according to their body weight before pregnancy: low weight (BMI<18.5 kg/m(2)), normal weight (BMI 18.5-23.9 kg/m(2)), overweight (BMI 24.0-27.9 kg/m(2)) and obesity (BMI>=28.0 kg/m(2)). The status of GWG was assessed by IOM optimal GWG guidelines. Chinese optimal GWG ranges were calculated according to the association of GWG with pregnant outcomes and anthropometry of mothers and children, and according to P25-P75 of GWG among mothers who had good pregnant outcomes and good anthropometry, and whose children had good anthropometry. The status of GWG was assessed by the new optimal ranges. Results: P50 (P25-P75) of GWG among the 8 323 mothers was 15.0 (10.0-19.0) kg. According to the proposed optimal GWG ranges of IOM, the proportions of inadequate, optimal and excessive GWG accounted for 27.2% (2 263 mothers), 36.2% (3 016 mothers) and 36.6% (3 044 mothers). The optimal GWG ranges for low weight, normal weight, overweight and obesity were 11.5-18.0, 10.0-15.0, 8.0-14.0 and 5.0 11.5 kg. Based on these optimal GWG ranges established in this study, the rates of inadequate, optimal and excessive GWG were 15.7% (1 303 mothers), 45.0% (3 744 mothers) and 39.3% (3 276 mothers), and these rates were significantly different from that defined by the IOM standards (chi2=345.36, P<0.001). Conclusion: The median of GWG among Chinese mothers is 15.0 kg, which is at a relatively higher level. This study suggests the optimal GWG ranges for Chinese women who give singleton and full-term babies, which appears lower than IOM's. PMID- 29334706 TI - [Analysis of mothers' acceptance of HPV vaccination of adolescent girls in Xiamen]. AB - Objective: To survey the mothers' acceptance of the HPV vaccination for their adolescent girls in Xiamen and to explore the influencing factors. Methods: Mothers of adolescent girls were selected by multistage cluster random sampling. Data of demography of the mothers and girls, the knowledge and attitude of cervical cancer and HPV vaccine of the mothers were collected. The influencing factors of mothers' attitudes were analyzed with univariate and multivariate logistic regression. Results: A total of 2 307 mothers were selected. The average age of mothers was (38.0+/-4.7) years. 13.1% (300) of the mothers had a family history of malignant tumor. The mothers' acceptance for vaccinating girls was 61.9% (1 428). The awareness rates of HPV and HPV vaccine were 42.5% (980) and 21.4% (493), respectively. Mothers who had family history of cancer (OR=1.36, 95%CI:1.02-1.82) showed a greater willingness to vaccinate their girls than the mothers who had not. Mothers who had knowledge of HPV (OR=1.32, 95%CI:1.08-1.62) and HPV (OR=2.03, 95%CI:1.56-2.66) vaccines showed a greater willingness to vaccinate their girls than the mothers who had not. Conclusion: The mothers' acceptance to vaccinate adolescent girls against cervical cancer needs to be raised, especially for the mothers who had not family history of cancer, no knowledge of HPV and HPV vaccines. PMID- 29334708 TI - [Analysis of measles immunity level and serological susceptibility among Yunnan residents aged >=20 years]. AB - Objective: To evaluate the population immunity to measles and explore the factors associated with measles susceptibility in Yunnan residents aged >=20 years. Methods: 2 689 residents aged >=20 years were selected by multistage stratified systematic randomized sampling in 252 villages of 42 counties in Yunnan Province between June and September in 2015. Each subject was surveyed by the same questionnaire, including general information, measles contained vaccine history, measles history, and 5 ml blood sample of each subject was collected. Serum IgG antibodies against measles virus were measured by ELISA. Positive was defined as the antibody concentration >=250 mU/ml, and negative as <250 mU/ml. Non conditional logistic regression model was used analyze the factors associated with measles susceptibility in adults. Results: Among 2 689 subjects, 1 214 were males (45.15%), and the overall positive rate of measles IgG antibody was 89.77%. Compared with subjects from the region where economic development was low, subjects from the region where economic development was moderate were likely to be susceptible to measles virus (OR=1.81, 95%CI: 1.33-2.47). Four age groups had higher risk of being susceptible to measles virus (compared with >=40 years: 20 24 years old, OR=2.04, 95%CI: 1.26-3.31; 25-29 years old, OR=3.72, 95%CI: 2.37 5.86; 30-34 years old, OR=1.94, 95%CI: 1.22-3.09; 35-39 years old, OR=1.81, 95%CI: 1.07-3.05). Conclusion: Our results suggest that the serological susceptibility in adults (20-39 years), especially adults from the regions where the economic development was moderate, should be concerned. The additional vaccination strategy targeting young adults is important for reducing the risk of measles infection. PMID- 29334707 TI - [Comparing the immunogenicity and safety of sequential inoculation of sIPV followed by bOPV (I+III) in different dosage forms]. AB - Objective: To compare the safety and immunogenicity of two different sequential schedules of inactivated poliomyelitis vaccine made from Sabin strain (sIPV) followed by typeI+III bivalent oral poliovirus vaccine (bOPV) in Drug Candy (DC) form or liquid dosage form). Methods: This randomized, blinded, single center, parallel-group controlled trial was done from September 2015 to June 2016 in Liuzhou, Guangxi province. Healthy infants aged >=2 months were eligible for enrollment and divided into 1sIPV+2bOPV or 2sIPV+1bOPV sequential schedules. According to the bOPV dosage form each sequential schedules, the subjects again were divided into drug candy(DC) form or liquid dosage form group, being 1sIPV+bOPV (DC)/1sIPV+2bOPV(liquid)/2sIPV+1bOPV(DC)/2sIPV+1bOPV(liquid). According to 0, 28, 56 d immunization schedule, Each group were given 3 doses. We recorded adverse events during the clinical trial (399 participants who receive at least one dose). 28 days post-Dose 3, we receive a total of 350 blood samples (excluding the quitters or subjects against trial plan), using cell culture trace against polio virus neutralization test I, II, III neutralizing antibody (GMT), calculating the antibody positive rate.PolioI,IIand III antibody titers were assessed by virus-neutralizing antibody assay and the seroconversion (4-fold increase in titer) from pre-Dose 1 to 28 days post-Dose 3 was calculated (total 350 samples) . Results: During the vaccination, the incidence of AEs in 1sIPV+2bOPV(DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV(DC), 2sIPV+1bOPV (liquid) group were 79%, 76%, 80% and 74% (chi(2)=1.23, P=0.747) , respectively. The severe AEs in groups were 6%, 5%, 6% and 4% (chi(2)=0.57, P=0.903) , respectively, and none was considered to be vaccination related. 28 days after 3(rd) vaccination, the seroconversion rates in 1sIPV+2bOPV (DC), 1sIPV+2bOPV (liquid), 2sIPV+1bOPV (DC), 2sIPV+1bOPV (liquid) group, were 99%, 100%, 99% and 99% (chi(2)=0.94, P=0.815) , respectively, for type I poliovirus; and 47%, 57%, 80%, 79% (chi(2)=31.56, P<0.001) , respectively, for type II; and were 100%, 99%, 100%, 99% (chi(2)=2.02, P=0.568) , respectively, for type III. In each group, the GMT of antibody against poliovirus typeI were 4 539.68, 6 243.43, 6 819.53 and 7 916.29 (F=25.87, P<0.001) , respectively; Type II were 12.98, 10.54, 63.75 and 84.21 (F=8.68, P=0.034) , respectively; Type III were 1 172.55, 1 416.03, 2 648.89 and 3 250.75 (F=14.50, P=0.002) , respectively. Conclusion: On the same sequential schedules, there was no significant difference between the dosage forms, all of them showed good safety and immunogenicity. In the same dosage forms with different sequential schedules, the seroconversion rate was higher in 2 dose sIPV group than the 1 dose sIPV group, especially at the neutralizing antibody GMT level against polio type II and III after vaccination. PMID- 29334709 TI - [Molecular epidemiological study of human coronavirus OC43 in Shanghai from 2009 2016]. AB - Objective: To understand the epidemiological characteristics of Human coronavirus (HCoV), the patterns of emergence and circulation, and the genotype distribution of human coronavirus OC43 (HCoV-OC43) from November, 2009 to April, 2016 in Shanghai. Methods: A total of 6 059 respiratory specimens, including pharyngeal swab, sputum, nasopharyngeal aspirates and alveolar lavage fluid, as well as relative clinical data were collected from patients with acute respiratory infections from seven sentinel hospitals during November, 2009 to April, 2016 in Shanghai. Respiratory specimens were tested by RT-PCR with HCoV-conserved primers and subsequently genotyped by DNA sequencing. Using specific primers to amplify and sequence full-length Spike (S), RNA-dependent RNA polymerase (RDRP) and nucleocapsid (N) gene from HCoV-OC43 positive samples. Further genotype and phylogenetic analysis of HCoV-OC43 were performed by conducting phylogenetic trees. Results: Among 6 059 patients, the total frequency of HCoV was 63 (1.04%), in which HCoV-OC43 was the most frequently detected species with 34 positive samples, followed by human coronavirus 229E (HCoV-229E) and human coronavirus HKU1 (HCoV-HKU1) with 18 and 10 positive sample respectively. However, other HCoV like human coronavirus NL63 (HCoV-NL63), severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle-East Respiratory Syndrome Coronavirus (MERS CoV), were not been detected, which illustrated that HCoV-OC43 was the dominant subtype. The full-length of S, RDRP and N gene were obtained from 29 HCoV-OC43 positive samples. According to the sequence-analysis, 27 of which was genotype D, 2 of which was genotype B and others genotype, including genotype E, F and G, were not detected. The result indicated that the genotype D may be the dominant genotype. Further analysis of S protein that help HCoV-OC43 to entry host cell and stimulate the host immune system to produce neutralizing antibody found that two important functional domains in S protein, N-terminal domain (NTD) and receptor-binding domain (RBD) contained more amino acid substitution and positive selection sites, accompanied with amino acid insertion/deletion. 13 positive selection sites were all located in the NTD or RBD, 10 of which were located in the NTD and 3 in the RBD. Conclusion: Human coronavirus OC43 was the major circulation human coronaviurs in Shanghai from 2009 to 2016, in which genotype D was the dominant genotype. NTD and RBD regions of the S protein were hypervariable region during HCoV-OC43 evolution, and had amino acid substitutions as well as amino acid insertion/deletion. PMID- 29334710 TI - [A study on genotype of 271 mycobacterium tuberculosis isolates in 6 prefectures in Yunnan Province]. AB - Objective: To understand the characteristics of genotypes of Mycobacterium tuberculosis isolates in Yunnan province, and provide the molecular epidemiological evidence for prevention and control of tuberculosis in Yunnan Province. Methods: Mycobacterium Tuberculosis isolates were collected from 6 prefectures of Yunnan province in 2014 and their Genetypes of Mycobacterium tuberculosis isolates were obtained using spoligotyping and multiple locus variable numbers of tandem repeats analysis (MLVA). The results of spoligotyping were entered into the SITVITWEB database to obtain the Spoligotyping International Type (SIT) patterns and the sublineages of MTB isolates. The genoyping patterns were clustered with BioNumerics (version 5.0). Results: A total of 271 MTB isolates represented patients were collected from six prefectures in Yunnan province. Out of these patients, 196 (72.3%) were male. The mean age of the patients was (41.9+/-15.1) years. The most MTB isolates were from Puer, totally 94 iusolates(34.69%). Spoligotyping analysis revealed that 151 (55.72%) MTB isolates belonged to the Beijing genotype, while the other 120 (44.28%) were from non-Beijing genotype; 40 genotypes were consisted of 24 unique genotypes and 16 clusters. The 271 isolates were differentiated into 30 clusters (2 to 17 isolates per cluster) and 177 unique genotypes, showing a clustering rate of 23.62%. Beijing genotype strains showed higher clustering rate than non Beijing genotype strains (29.14% vs 16.67%). The HGI of 12-locus VNTR in total MTB strains, Beijing genotype strains and non-Beijing genotype was 0.993, 0.982 and 0.995 respectively. Conclusion: The Beijing genotype was the predominant genotype in Yunnan Province, the characteristics of Mycobacterium tuberculosis showed high genetic diversity. The genotyping data reflect the potential recent ongoing transmission in some area, which highlights the urgent need for early diagnosis and treatment of the infectious TB cases, to cut off the transmission and avoid a large TB outbreak. PMID- 29334711 TI - [Serologic surveillance indicators analysis among syphilis-infected pregnant women in East China]. AB - Objective: To analyze serologic surveillance indicators during pregnancy among syphilis-infected women who delivered in 2013 in East China. Methods: Data were from national 'Information System of Prevention of Mother-to-child Transmission of HIV, syphilis and HBV Management' and in total 5 206 syphilis-infected pregnant women who delivered in 2013 and in East China were involved in the analysis. Information on demographic characters, laboratory tests, and treatment regimens were collected. The maternal non-treponemal testing surveillance and titer distribution were described and compare the proportions between pregnant women receiving standard testing and non-standard testing, taking baseline testing and testing before delivery or at the third trimester. Multivariate logistic regression model was analyzed using maternal titer control as dependent variable, using prior history of syphilis infection, syphilis stages, titer, gestational weeks of treatment initiation and treatment regimens as independent variables in 3 940 pregnant women with both baseline testing results and testing results before delivery or at the third trimester. Results: The ages of the 5 206 syphilis infected pregnant women were (28.1+/-5.8) years old. The numbers of women received penicillin treatment, other treatment regimens and no treatment were 2 967 (57.0%), 281 (5.4%), and 1 958 (37.6%), respectively. The number of women with maternal seroconversion, 4-fold or greater titer decline, or titer increase were 349 (6.7%), 251 (4.8%) and 28 (0.5%). Multivariate analysis results showed that compared with pregnant women with prior history of syphilis, the OR(95%CI) for maternal titer control was 1.49 (1.18-1.88) among those with syphilis-infection history. Compared with pregnant women initiated treatment at 28 gestational weeks or before, the OR (95%CI) for maternal titer control was 4.09 (3.19-5.24) among those who initiated treatment after 28 gestational weeks. Compared with pregnant women initiated treatment at 28 gestational weeks or before, the OR (95%CI) for maternal titer control was 4.09 (3.19-5.24) among those who initiated treatment after 28 gestational weeks or received no treatment. Compared with pregnant women received penicillin treatment, the OR (95%CI) for maternal titer control among those received non-penicillin treatment and those received no treatment were 2.35 (1.46-3.76) and 1.55 (1.13-2.12), respectively. Conclusion: In East China, the proportion of women achieved seroconversion or 4-fold or greater titer decline during pregnancy was very low. Pregnant women with no prior history of syphilis infection, early maternal initiation of treatment, and penicillin treatment were more likely to reach maternal titer control. PMID- 29334712 TI - [The effect of ambient PM(10) on sperm quality in Wuhan]. AB - Objective: To investigate the effect of exposure to particulate matter <=10 MUm in aerodynamic diameter (PM(10)) on sperm quality in different stages of sperm development. Methods: This cross-sectional study included 1 827 patients attending the reproductive medicine center in Renmin Hospital of Wuhan University during April 2013 to January 2015. Air pollution data from January 2013 to January 2015 was obtained from the database of Wuhan Municipal Environmental Protection Bureau. The generalized linear model was employed to assess the association between each exposure variables and sperm parameters for several exposure windows (0-9, 10-14, 15-69, 70-90, 0-90 days before sampling) . Results: The average levels of PM(10) was (116.2+/-71.6) MUg/m(3) during the research period. Sperm volume was (75.4+/-49.1) *10(6)/ml in sample population, (29.4+/ 16.2) % in progressive motility and (51.8+/-21.6) % in total motility. Exposure to PM(10) was inversely associated with sperm concentration (beta:-0.319; 95%CI: 0.529,-0.046) during 70-90 lag days. PM(10) exposure during the 0-90 lag days was significantly associated with progressive motility (beta:-0.312; 95%CI:-0.527, 0.097) and total motility (beta:-0.347; 95%CI:-0.636,-0.059) after adjusted for age, education level, BMI, smoking, abstinence time, temperature, humidity and season. Conclusion: Exposure to PM(10) was associated with statistically significant decrements in sperm concentration and motility, and the adverse impact on sperm concentration was significantly in early phases of spermatogenesis. PMID- 29334713 TI - [Prevalence and influential factors of stroke in Jiangxi Province in 2014]. AB - Objective: To discuss the prevalence and influential factors of stroke among population in Jiangxi Province. Methods: Four cities in urban areas and four counties in rural areas were selected firstly, in which two districts or townships were selected; and then three communities or villages were chosen from each district and township, respectively, using the simple random sampling (SRS) method. Finally 15 269 subjects aging 15 years old or above, living in Jiangxi Province >=6 months were randomly selected to participate in this survey from November 2013 to August 2014. Information of population characteristics, life behavior way, individual disease history were collected through questionnaire survey, and height, weight, waist circumference, blood pressure, body fat rate, visceral fat index and so on were measured by instruments. Risk factors of stroke prevalence were analyzed by the unconditioned logistic regression analysis. Results: A total of 15 269 participants (6 267 males) from 15 364 eligible participants were included in the statistical analysis. Out of which, 7 793 participants came from urban areas, and their average age was (53.04+/-17.91) years old. In this study, 226 stroke patients (117 males) were found among15 269 participants, including 122 urban participants and 104 rural participants, whose average age was (67.76+/-9.74) years old. The prevalence of stroke was 1 480.12/100 000 in 2014, which was separately 1 866.92/100 000 and 1 210.84/100 000 among males and females. The prevalence of people aging (45-49) years old was 413.79/100 000 (6/1 450) , while which among people aging 75 years old and above was 3 311.62/100 000 (61/1 842) . The prevalence of stroke among residents in Jiangxi presented an uprising tendency with age increasing (linear-by-linear association chi(2)=62.23, P<0.01). The research showed that when other influencing factors including gender, BMI, waist circumference, pulse-pressure difference, VAI, and sleeping time in non-working days were controlled, hypertensive patients had a higher risk of stroke than people without hypertension (OR=6.88, 95%CI: 4.90-9.67), drinkers had a higher risk of stroke than non-drinkers (OR=1.56, 95%CI: 1.17-2.08), compared with people <65 years old, people aged 65-74 years old and >=75 years old had a higher risk of stroke, the value of OR (95%CI) were 1.88 (1.36-2.59) and 1.97 (1.39-2.80), respectively, compared with people with normal body fat percentage, people whose body fat percentage on high side and people who with high body fat percentage had a higher risk of stroke, the value of OR (95%CI) were 1.71 (1.18-2.48) and 1.74 (1.18 2.56), respectively, people with sleep time >8 h had a higher risk of stroke than those with sleep time of 6-8 h. Conclusion: There was a high stroke prevalence among residents in Jiangxi province. Hypertension, drinking, age, BFP and sleep duration were associated with stroke prevalence. Corresponding measures for high risk population and risk factors should be strengthened to prevent and control the stroke. PMID- 29334714 TI - [Urinary iodine concentration status and its influencing factors of pregnant women in Yuhuan county, Zhejiang Province]. PMID- 29334715 TI - [Analysis of HCV infection rate and its influence factors among drug users in Dehong Prefecture, Yunnan Province]. PMID- 29334716 TI - [Analysis on surveillance data of immunization safety for varicella vaccine after the immunization strategy implemented]. PMID- 29334717 TI - [The ten-year retrospect of nutrition and health status of pregnant women in China]. AB - Improvement of the nutrition and health status of pregnant women should be one of the top priority strategies of improving the physical fitness of next generation and reserve of talented person for national sustainable development. This paper reviews the nutrition and health status of pregnant women in China over the recent ten years and discusses the underlying factors and changing trends. The most popular nutrition-related problem is dietary imbalance, and many micronutrient intakes are lower than the recommended dietary intakes or adequate intakes, and some of nutrient intakes are still at a very low level for a long time such as vitamin D and calcium. The nutrition-related health problems are mainly anemia, vitamin D and vitamin A deficiencies; iodine intake is not in optimal state with a large proportion of inadequate and individual cases facing excessive intake risk. Overweight and obesity, pregnancy complications such as gastrocnemius muscle spasms, pregnancy hypertensive disorders and gestational diabetes were prevalent among pregnant women. We should address both malnutrition and nutrition imbalance in the same time in order to improve the nutrition and health status of pregnant women, by developing and implementing relevant laws and regulations, giving higher attention to pregnant women with advanced age, which in turns prevent a variety of micronutrient deficiencies, reduce adverse pregnant outcomes, and improve nutrition and health status of maternal and child. PMID- 29334718 TI - [Diet and nutrition interventions prevent gestational diabetes mellitus]. AB - Gestational diabetes mellitus (GDM) is one of the most common complications during pregnancy, with rising trend over the years. Dietary nutrient intake (protein, fat and fatty acids, carbohydrate, vitamin D, vitamin E, iron, zinc, selenium and inositol et al.), dietary pattern and probiotics may be related to GDM occurrence. Dietary factors are modifiable factors for preventing GDM. The study reviewed the roles of these dietary factors in preventing GDM. Results showed that plant-based dietary pattern may lower the risk of GDM and dietary pattern characterized with high animal protein, high fat and low carbohydrate may increase the risk of GDM. It warrants further studies that nutrient supplementation may prevent pregnant women from GDM. Diverse diet based on plant and cereal food should be promote for healthy and appropriate weight gain during pregnancy. PMID- 29334719 TI - [Human papillomavirus infection and vaccination]. AB - Human papillomavirus (HPV) is an infection that can be sexually transmitted and result in health consequences. Persistent high-risk HPV infection can lead to various cancers and is the essential cause of cervical cancer. HPV vaccine can prevent the HPV infection and thus the incidence of cervical cancer. In this review we introduced the prevalence of HPV infection and vaccination, and the prevention and early detection of cervical cancer. We also introduced the present knowledge and awareness of HPV infection and HPV vaccine in Chinese. Propaganda all over China should be performed on HPV vaccination to improve the vaccination rate, thus preventing the incidence of cervical cancer. PMID- 29334720 TI - [Responding to national strategy demand for a new era, and grasping key problems of basic frontiers in preventive medicine--Shuangqing Forum (No. 192) of National Natural Science Foundation of China]. PMID- 29334721 TI - Efficacy and safety of tocilizumab in Korean patients with active rheumatoid arthritis. AB - Background/Aims: To investigate the efficacy and safety of tocilizumab (TCZ) humanized anti-interleukin-6 receptor monoclonal antibody, in Korean patients with active rheumatoid arthritis (RA) refractory to conventional disease modifying anti-rheumatic drugs (DMARDs) including methotrexate (MTX). Methods: The main study was a 24-week, randomized, double-blind, controlled trial that was followed by a 48-week, open-labeled, extension phase. TCZ (8 mg/kg) or placebo was intravenously administered every 4 weeks. Results: Those treated with TCZ showed more favorable outcomes in terms of 20% according to the American College of Rheumatology response criteria (ACR20) and ACR50 responses, individual parameters of ACR core set, disease activity score in 28 joints (DAS28) remission, and European League Against Rheumatism (EULAR) response at week 24. These improvements were maintained or increased during the extension period. DAS28 remission at week 72 was associated with EULAR good response at week 12. The patients who experienced any adverse event (AE) were more frequent in the TCZ group compared to the placebo group. Most AEs were mild or moderate in intensity, although TCZ therapy had possible AEs including serious infection, abnormal liver function, and atherogenic lipid profile. Conclusions: TCZ infusion add-on is highly efficacious and well-tolerated in Korean patients with active RA refractory to conventional DMARDs including MTX. EULAR good response at week 12 could predict DAS28 remission at week 72. PMID- 29334722 TI - Comparison of the morphologic criteria (RECIST) and metabolic criteria (EORTC and PERCIST) in tumor response assessments: a pooled analysis. AB - Background/Aims: The Positron Emission Tomography Response Criteria in Solid Tumors (PERCIST) or European Organization for Research and Treatment of Cancer (EORTC) criteria are used to assess metabolic tumor responses. However, tumor responses have shown considerable discrepancies between the morphologic criteria (Response Evaluation Criteria in Solid Tumors [RECIST]) and metabolic criteria. We performed this pooled study to compare the RECIST and metabolic criteria in the assessment of tumor responses. Methods: Electronic databases were searched for eligible articles with the terms "RECIST," "PERCIST," or "EORTC criteria." The level of concordance in the tumor responses between the two criteria was estimated using kappa statistics. Results: A total of 216 patients were collected from eight studies comparing the RECIST and EORTC criteria. The agreement of tumor responses between the two criteria was moderate (kappa = 0.447). Eighty-six patients (39.8%) showed disagreement: tumor response was upgraded in 70 patients and downgraded in 16 when adopting the EORTC criteria. The EORTC criteria significantly increased the overall response rate (53% vs. 28%, p < 0.0001). The agreement of tumor responses between the RECIST and PERCIST was deemed fair (kappa = 0.389). Of 407 patients from nine studies, 181 (44.5%) showed a discrepancy: using the PERCIST, tumor response were upgraded in 151 patients and downgraded in 30. When adopting the PERCIST, the overall response rate was also significantly increased from 30% to 55% (p < 0.0001). Conclusions: This pooled analysis demonstrates that the concordance of tumor responses between the morphologic criteria and metabolic criteria is not excellent. When adopting the metabolic criteria instead of the RECIST, overall response rates were significantly increased. PMID- 29334723 TI - Methacholine bronchial provocation test in patients with asthma: serial measurements and clinical significance. AB - Background/Aims: The methacholine bronchial provocation test (MBPT) is used to detect and quantify airway hyper-responsiveness (AHR). Since improvements in the severity of asthma are associated with improvements in AHR, clinical studies of asthma therapies routinely use the change of airway responsiveness as an objective outcome. The aim of this study was to assess the relationship between serial MBPT and clinical profiles in patients with asthma. METHODS: A total of 323 asthma patients were included in this study. The MBPT was performed on all patients beginning at their initial diagnosis until asthma was considered controlled based on the Global Initiative for Asthma guidelines. A responder was defined by a decrease in AHR while all other patients were considered non responders. RESULTS: A total of 213 patients (66%) were responders, while 110 patients (34%) were non-responders. The responder group had a lower initial PC20 (provocative concentration of methacholine required to decrease the forced expiratory volume in 1 second by 20%) and longer duration compared to the non responder group. Members of the responder group also had superior qualities of life, compared to members of the non-responder group. Whole blood cell counts were not related to differences in PC20; however, eosinophil concentration was. No differences in sex, age, body mass index, smoking history, serum immunoglobulin E, or frequency of acute exacerbation were observed between responders and non-responders. Conclusions: The initial PC20, the duration of asthma, eosinophil concentrations, and quality-of-life may be useful variables to identify improvements in AHR in asthma patients. PMID- 29334724 TI - Disparity in Crohn's disease activity between home and clinics is associated with unscheduled hospital visits due to disease flares. AB - BACKGROUND/AIMS: E-health technologies have been implemented for the management of Crohn's disease (CD). We aimed to identify differences between patient activities at home and at routine clinic visits using a web-based self-reporting CD symptom diary (CDSD) and to determine the impact of this disparity on clinical outcomes. METHODS: Patients with CD from three tertiary hospitals were invited to assess their symptoms at least once a week using CDSD. We identified patients who showed disparities in disease activity (high activity at home but normal at the next hospital visit) and evaluated clinical outcomes of these patients such as unscheduled visits due to flares using Kaplan-Meier analyses. RESULTS: One hundred and forty-three patients recorded their symptoms weekly for at least 3 consecutive months and were included. Forty-eight patients (33.6%) showed disparate disease activities between at home and at the next outpatient clinic visit. The cumulative risk of unscheduled visits was significantly higher in this disparity group than in the concordant group (p = 0.001). Disparity in activity (p = 0.003), and anti-tumor necrosis factor use (p = 0.002) were independent risk factors of unscheduled visits due to disease flares. CONCLUSION: Disparity in disease activity is considerable in CD patients and is related to the risk of unscheduled hospital visit. PMID- 29334725 TI - Physical activity in chronic obstructive pulmonary disease: clinical impact and risk factors. PMID- 29334726 TI - Procalcitonin in bloodstream infections: beyond its role as a marker of clinical algorithm to reduce antimicrobial overuse. PMID- 29334727 TI - ApoB/ApoA-I ratio is independently associated with carotid atherosclerosis in type 2 diabetes mellitus with well-controlled LDL cholesterol levels. AB - BACKGROUND/AIMS: This study aimed to investigate whether the apolipoprotein (Apo) B/ApoA-I ratio is associated with carotid intima-media thickness (CIMT) in type 2 diabetes mellitus (T2DM) subjects with low density lipoprotein cholesterol (LDL C) levels less than 100 mg/dL. METHODS: This cross-sectional study included 845 subjects aged with T2DM 40 to 75 years who had visited Huh's Diabetes Center in Seoul, Republic of Korea for CIMT measurement. Traditional fasting lipid profiles, ApoB and ApoA-I levels were examined. CIMT was measured at three points on the far wall of 1 cm long section of the common carotid artery in the proximity of the carotid bulb. The mean value of six measurements from right and left carotid arteries were used as the mean CIMT. In this study, carotid atherosclerosis was defined as having a focal plaque or diffuse thickening of the carotid wall (mean CIMT >= 1.0 mm). RESULTS: The prevalence of carotid atherosclerosis increased with ApoB/ApoA-I ratio. The ApoB/ApoA-I ratio, expressed as both quartiles (odds ratio [OR], 2.14; 95% confidence interval [CI], 1.21 to 3.79; p for trend = 0.014) and continuous values (OR, 10.05; 95% CI, 3.26 to 30.97; p < 0.001), was significantly associated with a higher risk for carotid atherosclerosis, regardless of conventional cardiovascular disease risk factors. The optimal ApoB/ApoA-I ratio cutoff value for detecting carotid atherosclerosis was 0.57, based on receiver operating characteristic curve analysis with a sensitivity of 58.0% and a specificity of 55.1%. CONCLUSIONS: A high ApoB/ApoA-I ratio was significantly associated with carotid atherosclerosis in T2DM patients with LDL-C levels less than 100 mg/dL. PMID- 29334728 TI - Changing treatment paradigms for the management of inflammatory bowel disease. AB - Inflammatory bowel disease (IBD) is a chronic and progressive inf lammatory condition of the gastrointestinal tract causing bowel damage, hospitalizations, surgeries, and disability. Although there has been much progress in the management of IBD with established and evolving therapies, most current approaches have failed to change the natural course. Therefore, the treatment approach and follow-up of patients with IBD have undergone a significant change. Usage of immunosuppressants and/or biologics early during the course of the disease, known as top-down or accelerated step-up approach, was shown to be superior to conventional management in patients who had been recently diagnosed with IBD. This approach can be applied to selected groups based on prognostic factors to control disease activity and prevent progressive disease. Therapeutic targets have been shifted from clinical remission mainly based on symptoms to objective parameters such as endoscopic healing due to the discrepancies observed between symptoms, objectively evaluated inf lammatory activity, and intestinal damage. The concept of treat-to-target in IBD has been supported by population based cohort studies, post hoc analysis of clinical trials, and meta-analysis, but more evidence is needed to support this concept to be applied to the clinical practice. In addition, individualized approach with tight monitoring of non invasive biomarker such as C-reactive protein and fecal calprotectin and drug concentration has shown to improve clinical and endoscopic outcomes. An appropriate de-escalation strategy is considered based on patient demographics, disease features, current disease status, and patients' preferences. PMID- 29334729 TI - Polyoxygenated Cyclohexenoids with Promising alpha-Glycosidase Inhibitory Activity Produced by Phomopsis sp. YE3250, an Endophytic Fungus Derived from Paeonia delavayi. AB - Seven new polyoxygenated cyclohexenoids, namely, phomopoxides A-G (1-7), were isolated from the fermentation broth extract of an endophytic fungal strain Phomopsis sp. YE3250 from the medicinal plant Paeonia delavayi Franch. The structures of these compounds were established by spectroscopic interpretation. The absolute configurations of compounds 1 and 4 were confirmed by X-ray crystallographic analysis and chemical derivative approach. All isolated compounds showed weak cytotoxic activities toward three human tumor cell lines (Hela, MCF-7, and NCI-H460) and weak antifungal activities against five pathogenic fungi (Candida albicans, Aspergillus niger, Pyricularia oryzae, Fusarium avenaceum, and Hormodendrum compactum). In addition, compounds 1-7 showed a promising alpha-glycosidase inhibitory activity with IC50 values of 1.47, 1.55, 1.83, 2.76, 2.88, 3.16, and 2.94 mM, respectively, as compared with a positive control of acarbose (IC50 = 1.22 mM). PMID- 29334730 TI - Decomposition Pathways of Titanium Isopropoxide Ti(OiPr)4: New Insights from UV Photodissociation Experiments and Quantum Chemical Calculations. AB - The UV-photodissociation at 266 nm of a widely used TiO2 precursor, titanium tetraisopropoxide (Ti(OiPr)4, TTIP), was studied under molecular-beam conditions. Using the MS-TOF technique, atomic titanium and titanium(II) oxide (TiO) were detected among the most abundant photofragments. Experimental results were rationalized with the aid of quantum chemical calculations (DLPNO-CCSD(T) and DFT). Contrary to the existing data in the literature, the new four-centered acetone-elimination reaction was found to be the primary decomposition process of TTIP. According to computational results, the effective activation barrier of this channel was ~49 kcal/mol, which was ~13 kcal/mol lower than that of the competing propylene elimination. The former process, followed by the dissociative loss of an H atom, was a dominating channel of TTIP unimolecular decay. The sequential loss of isopropoxy moieties via these two-step processes was supposed to produce the experimentally observed titanium atoms. In turn, the combination of these reactions with propylene elimination can lead to another detected species, TiO. These results indicate that the existing mechanisms of TTIP thermal and photoinitiated decomposition in the chemical-vapor deposition (CVD) of titanium dioxide should be reconsidered. PMID- 29334731 TI - Validity of Measuring Metallic and Semiconducting Single-Walled Carbon Nanotube Fractions by Quantitative Raman Spectroscopy. AB - Although it is known that the Raman spectroscopic signature of single-walled carbon nanotubes (SWCNTs) is highly chirality dependent, using Raman spectroscopy with several laser excitations as a tool for quantifying fraction of either metallic or semiconducting nanotubes in a sample has become a widely used analytical method. In this work, using the electron diffraction technique as a basis, we have examined the validity of Raman spectroscopy for quantitative evaluation of metallic fractions (M%) in single-walled carbon nanotube samples. Our results show that quantitative Raman spectroscopic evaluations of M% by using several discrete laser lines, either by using integrated intensities of chirality associated radial breathing modes (RBMs) or, as has been more commonly utilized in recent studies, by statistically counting the numbers of RBMs can be misrepresentative. Specifically, we have found that the occurrence numbers of certain types of RBMs in Raman spectral mapping depend critically on the diameter distribution, resonant coupling between transition energies and excitation laser energy, and the chirality-dependent Raman scattering cross sections rather than simply on the metallic and semiconducting SWCNT fractions. These dependencies are similar to those observed in the integrated intensities of RBMs. Our findings substantially advance the understanding of the proper use of Raman spectroscopy for carbon nanotube quantification, which is important for carbon nanotube characterization and crucial to guide research in SWCNT growth and their applications. PMID- 29334732 TI - Fine Art of Thermoelectricity. AB - A detailed study of hitherto unknown electrical and thermoelectric properties of graphite pencil traces on paper was carried out by measuring the Hall and Seebeck effects. We show that the combination of pencil-drawn graphite and brush-painted poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) films on regular office paper results in extremely simple, low-cost, and environmentally friendly thermoelectric power generators with promising output characteristics at low-temperature gradients. The working characteristics can be improved even further by incorporating n-type InSe flakes. The combination of pencil-drawn n InSe:graphite nanocomposites and brush-painted PEDOT:PSS increases the power output by 1 order of magnitude. PMID- 29334733 TI - Surface Functionalization with Carboxylic Acids by Photochemical Microcontact Printing and Tetrazole Chemistry. AB - In this paper, we show that carboxylic acid-functionalized molecules can be patterned by photochemical microcontact printing on tetrazole-terminated self assembled monolayers. Upon irradiation, tetrazoles eliminate nitrogen to form highly reactive nitrile imines, which can be ligated with several different nucleophiles, carboxylic acids being the most reactive. As a proof of concept, we immobilized trifluoroacetic acid to monitor the reaction with X-ray photoelectron spectroscopy. Moreover, we also immobilized peptides and fabricated carbohydrate lectin as well as biotin-streptavidin microarrays using this method. Surface patterning was demonstrated by fluorescence microscopy and time-of-flight secondary ion mass spectrometry. PMID- 29334735 TI - Complex Dynamics of Photo-Switchable Guest Molecules in All-Optical Poling Close to the Glass Transition: Kinetic Monte Carlo Modeling. AB - We study theoretically the kinetics of noninteracting photoswitchable guest molecules (model azo-dye) dispersed at low concentration in host (model polymer matrix) in the all-optical poling process close to the glass transition temperature Tg. We modify kinetic Monte Carlo model used in our previous studies of nonlinear optical processes in host-guest systems. The polymer matrix is simulated using the bond-fluctuation model. The kinetics of multiple trans-cis trans cycles is formulated in terms of transition probabilities which depend on local free volume in the matrix and its dynamics. Close to Tg, the buildup of polar order, monitored in terms of angular probability density functions, follows a power-law in time while the evolution of the nonlinear susceptibilities related to second harmonic generation effect follows the stretched-exponential law. This complex dynamics of guest molecules implies the presence of dynamic heterogeneities of the matrix in space and time which spread the complexity from the matrix to the otherwise simple dynamics of noninteracting guest molecules. A qualitative physical picture of mosaic-like states-intertwined areas of free- and hindered angular motion of guest molecules-is proposed and the role of related short and longer scales in space for the promotion of complex dynamics of guest molecules is discussed. A brief comparison of the theory to available experimental data is given. PMID- 29334734 TI - A Method for Selective Depletion of Zn(II) Ions from Complex Biological Media and Evaluation of Cellular Consequences of Zn(II) Deficiency. AB - We describe the preparation, evaluation, and application of an S100A12 protein conjugated solid support, hereafter the "A12-resin", that can remove 99% of Zn(II) from complex biological solutions without significantly perturbing the concentrations of other metal ions. The A12-resin can be applied to selectively deplete Zn(II) from diverse tissue culture media and from other biological fluids, including human serum. To further demonstrate the utility of this approach, we investigated metabolic, transcriptomic, and metallomic responses of HEK293 cells cultured in medium depleted of Zn(II) using S100A12. The resulting data provide insight into how cells respond to acute Zn(II) deficiency. We expect that the A12-resin will facilitate interrogation of disrupted Zn(II) homeostasis in biological settings, uncovering novel roles for Zn(II) in biology. PMID- 29334736 TI - Hydration Behavior along the Folding Pathways of Trpzip4, Trpzip5 and Trpzip6. AB - The microscopic properties of water confined within different segments of Trpzip4 (TZ4), Trpzip5 (TZ5), and Trzpip6 (TZ6) have been compared for all the states characterized along their folding pathways. In particular, structural ordering, energetics, and dynamics of water have been examined as the peptide unfolds along the free energy landscape. It is observed that the structuring of tetrahedral network as well as translational and rotational motions of hydration waters confined within the strands and the turn regions are very different, revealing motional heterogeneity in small 16-residue trpzips. The polar and charged groups present at the peptide surface anchor to water molecules through hydrogen bonds and are responsible for differential hydration among various segments of the peptide, which is found to be correlated to their hydropathy values. The coherent collective dynamics of water is strongly coupled with conformational changes in the peptide since the trends observed in most of the computed quantities are in accordance with the folded and unfolded states classified along the folding pathway for all trpzips. The hydration behavior conform to the heterogeneity observed in the free energy landscape of stable TZ4 with four unfolded states as compared to more flexible TZ5 and TZ6 with two unfolded states each, in addition to the folded state. The hydration waters are observed to regulate the protein dynamics by continuous fluctuations in hydrogen bond network involving lateral side chains that inject conformational motions in the peptide to facilitate its unfolding. The implications of mutations on various aspects of hydration water dynamics including their impact on structural and dynamic organization of hydrogen bonds are also highlighted. Our studies affirm that topology of the free energy landscape is shaped by both spatial organization and dynamic transitions in hydration waters in addition to the conformational fluctuations in the peptide along the folding pathway. PMID- 29334737 TI - Tubular Hybrids: A Nanoparticle-Molecular Network. AB - We report here a new methodology for the formation of freestanding nanotubes composed of individual gold nanoparticles (NPs) cross-linked by coordination complexes or porphyrin molecules using WS2 nanotubes (INT-WS2) as a template. Our method consists of three steps: (i) coverage of these robust inorganic materials with monodispersed and dense monolayers of gold NPs, (ii) formation of a molecular AuNP network by exposing these decorated tubes to solutions containing a ruthenium polypyridyl complex or meso-tetra(4-pyridyl)porphyrin, and (iii) removal of the INT-WS2 template with a hydrogen peroxide solution. Nanoindentation of the template-free AuNP tubes with atomic force microscopy indicates a radial elastic modulus of 4 GPa. The template-free molecular AuNP tubes are characterized using scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy, and micro-Raman spectroscopy. The methodology provides a convenient and scalable strategy for the realization of molecular AuNP tubes with a defined length and diameter, depending on the dimensions of the template. PMID- 29334738 TI - Quantitative Visualization of Salt Concentration Distributions in Lithium-Ion Battery Electrolytes during Battery Operation Using X-ray Phase Imaging. AB - A fundamental understanding of concentrations of salts in lithium-ion battery electrolytes during battery operation is important for optimal operation and design of lithium-ion batteries. However, there are few techniques that can be used to quantitatively characterize salt concentration distributions in the electrolytes during battery operation. In this paper, we demonstrate that in operando X-ray phase imaging can quantitatively visualize the salt concentration distributions that arise in electrolytes during battery operation. From quantitative evaluation of the concentration distributions at steady states, we obtained the salt diffusivities in electrolytes with different initial salt concentrations. Because of no restriction on samples and high temporal and spatial resolutions, X-ray phase imaging will be a versatile technique for evaluating electrolytes, both aqueous and nonaqueous, of many electrochemical systems. PMID- 29334739 TI - Microfluidic-Assisted Production of Size-Controlled Superparamagnetic Iron Oxide Nanoparticles-Loaded Poly(methyl methacrylate) Nanohybrids. AB - In this paper, superparamagnetic iron oxide nanoparticles (SPIONs, around 6 nm) encapsulated in poly(methyl methacrylate) nanoparticles (PMMA NPs) with controlled sizes ranging from 100 to 200 nm have been successfully produced. The hybrid polymeric NPs were prepared following two different methods: (1) nanoprecipitation and (2) nanoemulsification-evaporation. These two methods were implemented in two different microprocesses based on the use of an impact jet micromixer and an elongational-flow microemulsifier. SPIONs-loaded PMMA NPs synthesized by the two methods presented completely different physicochemical properties. The polymeric NPs prepared with the micromixer-assisted nanoprecipitation method showed a heterogeneous dispersion of SPIONs inside the polymer matrix, an encapsulation efficiency close to 100 wt %, and an irregular shape. In contrast, the polymeric NPs prepared with the microfluidic-assisted nanoemulsification-evaporation method showed a homogeneous dispersion, an almost complete encapsulation, and a spherical shape. The properties of the polymeric NPs have been characterized by dynamic light scattering, thermogravimetric analysis, and transmission electron microscope. In vitro cytotoxicity assays were also performed on the nanohybrids and pure PMMA NPs. PMID- 29334740 TI - Point of Departure. PMID- 29334741 TI - Accounts: 50 Years of a Great Idea. PMID- 29334742 TI - [Diagnostic and prognostic biomarkers in acute coronary syndrome]. AB - Acute myocardial infarction (AMI) is an important cause of mortality and morbidity worldwide. Early diagnostics of this disease helps in the appropriate treatment of patients. Great attention is paid to the diagnostic and risk stratification of patients according to circulating biomarkers. There are a lot of scientific publications describing this topic. The aim of this article is to provide a comprehensive overview of the most important and most examined biomarkers in acute coronary syndrome. Meanwhile troponin takes a fundamental place for AMI diagnostic (mostly the high-sensitive methods) in preference to MB fraction of creatine kinase and myoglobin. The connection to a higher sudden death risk, reinfarcts and heart failure occurring was also proved by many other biomarkers. The most important of them are the natriuretic peptides, the C reactive protein, the heart fatty acid binding protein, the pregnancy-associated plasma protein-A, CD146, cystatin C, NGAL, copeptin, MR-proadrenomedullin, and the growth differentiation factor-15. More prospective randomized studies are needed for the further use of these other biomarkers in clinical practice.Key words: acute coronary syndrome - biomarkers. PMID- 29334744 TI - [Selenium treatment in thyreopathies]. AB - Selenium (latin Selenium) is a micronutrient embedded in several proteins. In adults, the thyroid is the organ with the highest amount of selenium per gram of tissue. Selenium levels in the body depend on the characteristics of the population and its diet and geographic area. In the thyroid, selenium is required for the antioxidant function and for the metabolism of thyroid hormones. The literature suggests that selenium supplementation of patients with Hashimotos thyroiditis is associated with a reduction in antithyroperoxidase antibody levels. Selenium supplementation also in mild Graves orbitopathy is associated with delayed progression of ocular disorders. As a consequence of this observation The European Group on Graves Orbitopathy recommend six months selenium preparates supportive therapy for patients with mild form of Graves orbitopathy.Key words: Graves-Basedows disease - Hashimotos thyroiditis - selenium - supplementation. PMID- 29334743 TI - [Adiponectin in patients with metabolic syndrome and diseases of the liver, bile ducts and pancreas]. AB - Epidemiological data show that the metabolic syndrome can be diagnosed in up to 30 % of the population. Regarding 5 components of the metabolic syndrome, three of them, in case of positivity (visceral obesity, arterial hypertension, hypertriglyceridemia, changes of HDL-cholesterol levels and type 2 diabetes mellitus), are pathogenic factors which are the most frequently related to cardiovascular diseases, but currently they are also the focus of interest for gastroenterologists. The relationship between non-alcoholic hepatic steatosis, including non-alcoholic steatohepatitis, has been described. Less is known so far about the relation to the pancreas disease, particularly with respect to the status referred to as non-alcoholic fatty pancreas disease. The hormone selectively produced by adipose tissue is adiponectin. This protein is studied as a possible biomarker in people with metabolic syndrome, including obesity. Besides that, there is a question studied whether adiponectin can also play a significant role in the pathogenesis of diseases associated with fat building up in parenchymatous organs. Finding a reliable biomarker for patients with metabolic syndrome or diseases of the liver, biliary system and pancreas in relation to metabolic syndrome, presents a big challenge. And adiponectin is one of the promising biomarkers.Key words: adiponectin - biliary disease - metabolic syndrome - pancreatic steatosis - steatohepatitis. PMID- 29334745 TI - [Citalopram and QT prolongation]. AB - In 2011/2012, the US Food and Drug Administration issued a warning about the effect of citalopram on the QT interval and decreased its dosing. Further studies addressing this issue have been published since then. The authors were interested to know whether or not the studies have furnished new information that could modify or further specify the FDA-issued recommendations. After analyzing the most relevant studies, the authors concluded that even papers published within the last 5 years confirmed that, of the SSRI class of drugs, citalopram prolongs the QT interval most significantly. While the QT interval prolongation in young and otherwise healthy individuals is small and treatment with citalopram relatively safe, in elderly comorbid patients with polypharmacy, use of even currently recommended doses may result in significant QT interval prolongation. Hence, the decision about future therapy will depend on the degree of risk of each individual patient. Judging by the most recent data, citalopram is not more effective compared with the other SSRIs. As a result, therapy with citalopram will presumably show a declining trend, particularly in elderly patients.Key words: citalopram - escitalopram - QT interval - SSRI. PMID- 29334746 TI - [The current role of warfarin]. AB - Well-managed warfarin therapy remains an important method of anticoagulation in the 21st century, despite the introduction of new antithrombotics into the clinical practice. The main advantages of warfarin are decades of treatment experience, the possibility to monitor its anticoagulant effect using the INR and the last, but not least, the low cost. Currently, approximately 75 % of anticoagulated patients in the Czech Republic are treated with warfarin and warfarin remains the only option for oral anticoagulant therapy in certain clinical conditions (particularly in patients with valvular atrial fibrillation or mechanical heart valves). For physicians across specialties it is still indispensable to master the basics of safe and effective warfarin therapy, including the management of treatment complications.Key words: anticoagulant therapy - INR - thrombosis - warfarin. PMID- 29334747 TI - [Drug induced tendon injury]. AB - Tendon injury belongs to the less known side effects of some drugs, reported until recently only for glucocorticoids and fluoroquinolones. To date, some other classes of drugs such as statins, aromatase inhibitors, anabolic steroids, potentially causing tendon injury, have been added to the list. The authors discuss the most common clinical presentations, diagnosis, and management as well as latest experimental data regarding this issue. The most often, the Achilles tendon is affected, however, nearly every tendon of the entire body may be affected. Tendon rupture or drug induced tendinopathy should be strongly considered in those who have a tendon injury and have recently taken these drugs.Key words: anabolic steroids - aromatase inhibitors - fluoroquinolones - glucocorticoids - statins - tendon injury. PMID- 29334748 TI - [How to apply the ambulatory cardiovascular rehabilitation: guidelines of the Working group for cardiovascular rehabilitation at Slovak Society of Cardiology]. AB - Authors have proposed a concept of guidelines for applying the ambulatory complex cardiovascular rehabilitation (ACCVR) into the clinical practice in Slovakia. As a background they have used an actual cardiovascular mortality and morbidity data from home country and abroad as well. They emphasize the non-optimal situation in this aspect which may not be solved by the increasing supporting the invasive revascularization methods and by the intensifying pharmacotherapy only, because the favourable effects of these procedures is timely missing if it is not accompanied by the therapeutic lifestyle changes. In this proposal the ACCVR is considered not as a regular, controlled physical training only, but there is included patient's education, relaxation, stress management, behavioral changes and possible social support too. At the end of one 3 months lasting cycle of ACCVR there is subsumed a final test oriented on patient's education and physical fitness levels and the continuing long-term contacts with him during following home-based training. Main parts of the concept are the concrete conditions which should by fulfilled as for as a personal, space and device equipment needed for accreditation so called cardiology stationary for ACCVR activities (in connection with cardiology department for out patients). Moreover, there are also included practical guidelines how to do patient's stratification, how to send the patients to stationary, indications and contraindications, establishing of the training heart rate and training load, the composition of one cycle 3 months lasting, application of the progressive aerobic and resistance training and how to continue in home-based training. At the end the authors have proposed conditions which are needed to fulfil for a successful implementation of ACCVR into the health care system.Key words: cardiovascular rehabilitation for out patients - exercise training - home based training with telemonitoring control - progressive resistance training - relaxation and stress management. PMID- 29334749 TI - [Unusual history of Wilson disease: a case report and review of the literature]. AB - Wilson disease (WD) belongs to autosomal recessive genetic metabolic disorders with gene mutation ATP7B located on 13th chromosome. The enzyme ATPase plays an important role in WD. It facilitates excretion of copper into bile. This gene is responsible for modification of apoceruloplasmin. In this disease, it leads to insufficient release of copper from organism and accumulation of copper in organs such as liver, brain which can cause dysfunction of a certain organ. According to specific symptoms, we can divide WD into psychiatric, neurologic or hepatic form. The WD usually manifests between 15 and 25 years of age. Hepatic form often occurs sooner, on the contrary, the neurological variant usually occur during the later stages. We present a case report of 45-years-old woman with atypical medical history of WD, in which the diagnostic process was very long and had interdisciplinary character.Key words: brain - copper - diagnostic - genetics - liver - panda - Wilson disease. PMID- 29334750 TI - [Remission of steroid-resistant Stills disease treated with anakinra, evidenced by FDG-PET/CT examination: case report]. AB - After elimination of infectious causes, neoplastic causes and the systemic autoimmune disease of connective tissue, a patient with high fevers over 39 degrees C was diagnosed with Stills disease. High doses of prednisone led to resolution of symptoms, however after reducing the doses of prednisone to 15 mg, high fevers over 39 degrees C returned, as well as joint pains. The high doses of prednisone led to decompensation of diabetes mellitus even with 4 daily insulin dosages. Therefore it was proceeded to regular subcutaneous administration of anakinra once a day. Anakinra enabled the reduction of prednisone to as much as the currently administered 2.5 mg a day, but it has not so far allowed for removing glucocorticoids from the treatment completely. Activity of the disease is shown by the findings within the FDG-PET/CT examination. At the time of maximum activity of the disease there was distinct lymphadenopathy with pathological accumulation of FDG visible as well as increased accumulation of FDG in the hematopoietic bone marrow. As the disease activity decreased, the size of nodules regressed and FDG accumulation in both the lymphatic nodes and bone marrow declined. FDG-PET/CT is a suitable method for monitoring the activity of Stills disease.Key words: anakinra - Adult-onset Stills disease. PMID- 29334751 TI - Pursuing excellence in ERCP. AB - The term "ERCP cannulation" returns 1,563 items in Pubmed. In 1980 there were 7 papers, and 92 were included in 2015. Any gastroenterologist knows ERCP is often a complex procedure, at times with uncertain results, that unfortunately leads every so often to lawsuits. Most issues derive from attempts at biliary cannulation, despite the improved instruments available since the days of the first sphincterotomy back in 1974. The initial priority goal of ERCP learning is a satisfactory rate of choledochal cannulation. Such rate has been somewhat arbitrarily set as at least 80% of successful biliary access. PMID- 29334752 TI - The road to registration: Aboriginal and Torres Strait Islander health practitioner training in north Queensland. AB - CONTEXT: In 2012, the new profession of Aboriginal and Torres Strait Islander health practitioner (ATSIHP) was registered under the Health Practitioner Regulation National Law Act 2009. The project in this present study evolved out of the Australian Government?'s recognition of the need for the existing Indigenous health worker (IHW) workforce to meet the minimum qualification requirements for registration as ATSIHPs through recognition of prior learning and/or further education. A total of 53 IHWs participated in the upskilling project between June 2014 and June 2015, with approximately 200 IHWs from Queensland expressing an interest in undertaking the training. This demonstrated a clear need for further training programs such as this one. The project was coordinated by the Indigenous Health Unit at James Cook University (JCU) with training being delivered by TAFE Cairns in collaboration with the College of Medicine and Dentistry, JCU. Students travelled from as far north as the Torres Strait and as far west as Mount Isa. ISSUES: The key issues for discussion were associated with the ATSIHP role being relatively new including the limited preparedness of training providers to deliver the upgraded qualification requirements and uncertainty about the registration process. Compounding this was a general undervaluing and underutilisation of the IHW role within the current primary healthcare system. Other challenges included the variations of IHW roles, scope of practice and educational standards held by individuals, as well as the associated complexities of providing training to IHWs from the large and diverse geographic area that is rural and remote Australia. Program and student evaluation was undertaken with each of the three cohorts via a course experience questionnaire, TAFE evaluation forms and opportunistic student feedback. LESSONS LEARNED: Lessons learned as a result of this project include the need to continue to recognise and promote understanding of the contribution that IHW/ATSIHPs make in improving health, the importance of conducting a comprehensive student selection process, the benefits of working collaboratively between the university and vocational education training sectors, the need to continue to strengthen partnerships between higher education and health industry, the need for flexible funding and training models that enable adequate learning support, and the identification of a significant unmet training need. PMID- 29334753 TI - Physicians' Perceptions of Hope and How Hope Informs Interactions With Patients: A Qualitative, Exploratory Study. AB - OBJECTIVES: Today some studies of physicians' perceptions of hope are available, but not studies of how hope informs patient care. The objectives of this qualitative study were to describe the ways physicians conceptualize hope and how these may inform interactions with their patients. METHODS: Ten physicians working in a large tertiary care teaching hospital were interviewed. They represented palliative care, oncology, and 7 other specialties. Minimal amount of background information was collected. In-depth interviews were conducted during spring of 2016. Open coding and the constant comparison method were used to identify emerging themes from the transcribed data. Validation method included member checking. RESULTS: Hope was defined as an abstract, evolving concept characterized by future-oriented wishes; offering possibilities for reframing and shaping new meaning; an attitude of positivity or optimism; an attribute of the human condition with emotional and relational roots; and as a response to the existential inevitability of suffering and death. Three themes describing hope emerged: "assessing hope," "fostering and sustaining hope," and "attributes and outcomes of hope." CONCLUSIONS: The findings show how physicians conceptualize hope and how these conceptions differ in the empirical light of the study. Physicians' perceptions of "hope" may evolve when entering into a therapeutic relationship exploring the needs and desires of patients. Physicians' perspectives about "hope" may at times not be solely their own but are those of their patients and thus resulting in an amalgamation, or a rebuilding/rekindling of hope amidst hopelessness, that suits a particular relationship. PMID- 29334754 TI - High Neutrophil to Lymphocyte Ratio Is Associated With Symptomatic and Ruptured Thoracic Aortic Aneurysm. AB - The predictive value of the neutrophil to lymphocyte ratio (NLR) has been demonstrated in several cardiovascular diseases. The aim of our study was to investigate the association between the preoperative NLR and aneurysm characteristics as well as 30-day postoperative morbidity and mortality in patients with thoracic aortic aneurysm (TAA) undergoing aortic surgical repair. Consecutive patients (n = 75) with TAA were retrospectively included over a 10 year period. Clinical characteristics, aneurysm characteristics, and 30-day postoperative outcome were recorded. The median age of patients was 71 (67-80) years. The median preoperative NLR was 3.5 (2.3-5.8). The proportion of asymptomatic TAA was significantly lower in patients with an NLR > 3.5 compared with those with an NLR < 3.5 (52.6% vs 75.7%; P = .054). The proportion of patients with pain or with ruptured TAA was significantly higher in patients with an NLR > 3.5 compared with those with NLR < 3.5 (42.1% vs 16.2%; P = .022 and 26.3% vs 2.7%; P = .007, respectively). No significant difference was observed regarding the 30-day overall postoperative mortality and morbidity. The preoperative NLR did not correlate with TAA diameter. A high preoperative NLR is significantly associated with symptomatic and ruptured TAA, suggesting a potential interest as a marker and/or player in the disease. PMID- 29334755 TI - Neuropathy in Diabetes: "One Cannot Begin It Too Soon". PMID- 29334756 TI - Thioredoxin-1 Negatively Modulates ADAM17 Activity Through Direct Binding and Indirect Reductive Activity. AB - AIMS: A disintegrin and metalloprotease 17 (ADAM17) modulates signaling events by releasing surface protein ectodomains such as TNFa and the EGFR-ligands. We have previously characterized cytoplasmic thioredoxin-1 (Trx-1) as a partner of ADAM17 cytoplasmic domain. Still, the mechanism of ADAM17 regulation by Trx-1 is unknown, and it has become of paramount importance to assess the degree of influence that Trx-1 has on metalloproteinase ADAM17. RESULTS: Combining discovery and targeted proteomic approaches, we uncovered that Trx-1 negatively regulates ADAM17 by direct and indirect effect. We performed cell-based assays with synthetic peptides and site-directed mutagenesis, and we demonstrated that the interaction interface of Trx-1 and ADAM17 is important for the negative regulation of ADAM17 activity. However, both Trx-1K72A and catalytic site mutant Trx-1C32/35S rescued ADAM17 activity, although the interaction with Trx-1C32/35S was unaffected, suggesting an indirect effect of Trx-1. We confirmed that the Trx 1C32/35S mutant showed diminished reductive capacity, explaining this indirect effect on increasing ADAM17 activity through oxidant levels. Interestingly, Trx 1K72A mutant showed similar oxidant levels to Trx-1C32/35S, even though its catalytic site was preserved. We further demonstrated that the general reactive oxygen species inhibitor, Nacetylcysteine (NAC), maintained the regulation of ADAM17 dependent of Trx-1 reductase activity levels; whereas the electron transport chain modulator, rotenone, abolished Trx-1 effect on ADAM17 activity. INNOVATION: We show for the first time that the mechanism of ADAM17 regulation, Trx-1 dependent, can be by direct interaction and indirect effect, bringing new insights into the cross-talk between isomerases and mammalian metalloproteinases. CONCLUSION: This unexpected Trx-1K72A behavior was due to more dimer formation and, consequently, the reduction of its Trx-1 reductase activity, evaluated through dimer verification, by gel filtration and mass spectrometry analysis. Antioxid. Redox Signal. 29, 717-734. PMID- 29334757 TI - High Prevalence of Non-B HIV-1 Subtypes in Overseas Sailors and Prostitutes in Korea. AB - There have been no studies related to groups at the highest risk for HIV-1 infection in Korea before 1993. In this study, for the first time, we report the distribution of HIV subtypes in overseas sailors (OSs) and prostitutes who worked in brothels near U.S. military bases in Korea. We retrospectively determined the sequences of nef in 131 patients using reverse transcription polymerase chain reaction (RT-PCR). These patients composed of 102 OSs, 14 OS spouses, and 15 prostitutes. Phylogenetic analysis was performed using 128 Korean OSs, OS spouses, and prostitutes. The distribution of non-B subtypes (n = 105) was as follows: 39, CRF02_AG; 15, CRF01_AE; 7, A1; 7, A2; 6, D; 2, CRF06_cpx; 3, C; 6, G; 11, untypable; and 1 each for CRF09_cpx, CRF12_BF, CRF50_A1D, A3, AFG, H, F1, F2, and A. Of the 116 OSs and OS spouses, 101 (87%), 11 (9%), and 4 (3%) subjects had non-B, Western B, and Korean subclade B (KSB) HIV-1s, respectively. Among the 15 prostitutes, 10 had Western B (67%), 4 non-B (27%), and 1 KSB (7%) HIV-1s. All 14 couples, each comprising of an OS and his spouse, had the same subtype. KSB (5%) was detected in OSs and prostitutes in 1990 and 1994, respectively. Of the 131 patients analyzed in this study, 105 (80%), 21 (16%), and 5 (4%) were infected with the non-B, Western B, and KSB subtypes of HIV, respectively. In future, these data may provide an important foundation for analysis of HIV-1 subtypes in Korea. PMID- 29334758 TI - Anticancer Thiosemicarbazones: Chemical Properties, Interaction with Iron Metabolism, and Resistance Development. AB - SIGNIFICANCE: During the past decades, thiosemicarbazones were clinically developed for a variety of diseases, including tuberculosis, viral infections, malaria, and cancer. With regard to malignant diseases, the class of alpha-N heterocyclic thiosemicarbazones, and here especially 3-aminopyridine-2 carboxaldehyde thiosemicarbazone (Triapine), was intensively developed in multiple clinical phase I/II trials. Recent Advances: Very recently, two new derivatives, namely COTI-2 and di-2-pyridylketone 4-cyclohexyl-4-methyl-3 thiosemicarbazone (DpC) have entered phase I evaluation. Based on the strong metal-chelating/metal-interacting properties of thiosemicarbazones, interference with the cellular iron (and copper) homeostasis is assumed to play an important role in their biological activity. CRITICAL ISSUES: In this review, we summarize and analyze the data on the interaction of (alpha-N-heterocyclic) thiosemicarbazones with iron, with the special aim of bridging the current knowledge on their mode of action from chemistry to (cell) biology. In addition, we highlight the difference to classical iron(III) chelators such as desferrioxamine (DFO), which are used for the treatment of iron overload. FUTURE DIRECTIONS: We want to emphasize that thiosemicarbazones are not solely removing iron from the cells/organism. In contrast, they should be considered as iron interacting drugs influencing diverse biological pathways in a complex and multi faceted mode of action. Consequently, in addition to the discussion of physicochemical properties (e.g., complex stability, redox activity), this review contains an overview on the diversity of cellular thiosemicarbazone targets and drug resistance mechanisms. Antioxid. Redox Signal. 00, 000-000. PMID- 29334759 TI - Redox Nano-Architectures: Perspectives and Implications in Diagnosis and Treatment of Human Diseases. AB - SIGNIFICANCE: Efficient targeted therapy with minimal side-effects is the need of the hour. Locally altered redox state is observed in several human ailments, such as inflammation, sepsis, and cancer. This has been taken advantage of in designing redox-responsive nanodrug carriers. Redox-responsive nanosystems open a door to a multitude of possibilities for the control of diseases over other drug delivery systems. Recent Advances: The first-generation nanotherapy relies on novel properties of nanomaterials to shield the drug and deliver it to the diseased tissue or organ. The second generation is based on targeting the drug or diagnostic material to the diseased cell-specific receptors, or to a particular organ to improve the efficacy of the drug. The third and the latest generation of nanocarriers, the stimuli-responsive nanocarriers exploit the disease condition or environment to specifically deliver the drug or diagnostic probe for the best diagnosis and treatment. Several different kinds of stimuli such as temperature, magnetic field, pH, and altered redox state-responsive nanosystems have educed immense promise in the field of nanomedicine and therapy. CRITICAL ISSUES: We describe the evolution of nanomaterial since its inception with an emphasis on stimuli-responsive nanocarriers, especially redox-sensitive nanocarriers. Importantly, we discuss the future perspectives of redox-responsive nanocarriers and their implications. FUTURE DIRECTIONS: Redox-responsive nanocarriers achieve a near-to-zero premature release of the drug, thus avoiding off-site toxicity associated with the free drug. This bears great potential for the development of more effective drug delivery with better pharmacokinetics and pharmacodynamics. Antioxid. Redox Signal. 00, 000-000. PMID- 29334760 TI - Polymorphisms in Estrogen Synthesis Genes and Symptom Clusters During the Menopausal Transition and Early Postmenopause: Observations From the Seattle Midlife Women's Health Study. AB - During the menopausal transition and early postmenopause, participants in the Seattle Midlife Women's Health Study (SMWHS) experienced one of the three symptom severity clusters identified through latent class analysis: severe hot flashes with moderate sleep, mood, cognitive, and pain symptoms (high-severity hot flash); low-severity hot flashes with moderate levels of all other symptom groups (moderate severity); and low levels of all symptom groups (low severity). In an effort to determine whether gene polymorphisms were associated with these symptom severity classes, we tested associations between gene polymorphisms in the estrogen synthesis pathways (cytochrome P450 19 [CYP 19] and 17 beta hydroxysteroid dehydrogenase [ 17HSDB1]) and the three symptom severity clusters. SMWHS participants ( N = 137) recorded symptoms monthly in diaries and provided buccal smears for genotyping. Multilevel latent class analysis with multinomial regression was used to determine associations between gene polymorphisms and symptom severity clusters. Only the 17HSDB1 polymorphisms ( rs615942 and rs592389) were associated significantly with the high-severity hot flash cluster versus the low-severity symptom cluster. None of the polymorphisms was associated with the moderate-severity cluster versus the low-severity symptom cluster. Findings of associations of the 17HSDB1 polymorphisms with the high-severity hot flash symptom cluster are consistent with those of an association between 17HSDB1 polymorphisms and hot flashes in the Study of Women and Health Across the Nation population and our previous findings of associations between these polymorphisms with greater estrone levels. PMID- 29334761 TI - Regulation of Cancer and Cancer-Related Genes via NAD. AB - SIGNIFICANCE: NAD+ is an essential redox cofactor in cellular metabolism and has emerged as an important regulator of a wide spectrum of disease conditions, most notably, cancers. As such, various strategies targeting NAD+ synthesis in cancers are in clinical trials. Recent Advances: Being a substrate required for the activity of various enzyme families, especially sirtuins and poly(adenosine diphosphate [ADP]-ribose) polymerases, NAD+-mediated signaling plays an important role in gene expression, calcium release, cell cycle progression, DNA repair, and cell proliferation. Many strategies exploring the potential of interfering with NAD+ metabolism to sensitize cancer cells to achieve anticancer benefits are highly promising, and are being pursued. CRITICAL ISSUES: With the multifaceted roles of NAD+ in cancer, it is important to understand how cellular processes are reliant on NAD+. This review summarizes how NAD+ metabolism regulates various pathophysiological processes in cancer, and how this knowledge can be exploited to devise effective anticancer therapies in clinical settings. FUTURE DIRECTIONS: In line with the redundant pathways that facilitate NAD+ metabolism, further studies should comprehensively understand the roles of the various NAD+ synthesizing as well as NAD+-utilizing biomolecules to understand its true potential in cancer treatment. Antioxid. Redox Signal. 00, 000-000. PMID- 29334762 TI - Altered Redox State Modulates Endothelial KCa2.3 and KCa3.1 Levels in Normal Pregnancy and Preeclampsia. AB - AIMS: Altered redox state has been related to the development of normal pregnancy (NP) and preeclampsia (PE). Endothelial KCa2.3 and KCa3.1 (KCas) play an important role in vasodilation, and KCas levels are affected by oxidative stress. We investigated the mechanisms of oxidative stress-mediated KCas expression modulation during NP and PE. RESULTS: Human uterine microvascular endothelial cells were incubated in serum from normal nonpregnant women (n = 13) and women with NP (n = 24) or PE (n = 15), or in vascular endothelial growth factor (VEGF), oxidized low-density lipoprotein (ox-LDL), progesterone, or estradiol-17beta (E2) containing medium for 24 h. NP serum elevated H2O2 levels via reducing catalase and glutathione peroxidase 1 levels, thereby enhancing KCas levels via a H2O2/fyn/extracellular signal-regulated kinase (ERK)-mediated pathway. VEGF enhanced H2O2 and KCas levels and KCa3.1 currents. KCas were upregulated and KCas activation-induced endothelium-dependent relaxation (EDR) was augmented in vessels from pregnant mice and rats. Whereas PE serum, ox-LDL, progesterone, or soluble fms-like tyrosine kinase 1 (sFlt-1) elevated superoxide levels via elevating NADPH oxidase 2 (NOX2) and NOX4 levels and reducing superoxide dismutase (SOD) 1 levels, thereby downregulating KCas. sFlt-1 inhibited EDR. PE serum- or progesterone-induced alterations in levels of KCas were reversed by polyethylene glycol-SOD, NOX inhibition, or E2. Innovation and Conclusions: This is the first study of how endothelial KCas levels are modulated during NP and PE. KCas were upregulated by soluble serum factors such as VEGF via H2O2 generation in NP, and were downregulated by serum factors such as progesterone and ox-LDL via superoxide generation in PE, which may contribute to hemodynamic adaptations in NP or to the development of PE. Antioxid. Redox Signal. 00, 000-000. PMID- 29334763 TI - Long Noncoding RNA LINC01619 Regulates MicroRNA-27a/Forkhead Box Protein O1 and Endoplasmic Reticulum Stress-Mediated Podocyte Injury in Diabetic Nephropathy. AB - AIMS: Altered activities of long noncoding RNAs (lncRNAs) have been implicated in the regulation of microRNAs. microRNA-27a (miR-27a) upregulation has been shown to induce endoplasmic reticulum (ER) stress podocyte injury in diabetic nephropathy (DN). Herein, we aim to interrogate the mutually regulated network of miR-27a with long intergenic noncoding RNA 1619 (LINC01619) and the target gene. RESULTS: LINC01619 downregulation was found in human DN renal biopsy tissues and contributed to proteinuria and diminished renal function. LINC01619 was expressed in podocyte cytoplasm and involved in ER stress signaling pathway. LINC01619 exerted biological function by serving as a "sponge" for miR-27a, which negatively targeted forkhead box protein O1 (FOXO1) and activated ER stress. In diabetic rats and high-glucose cultured podocytes, LINC01619 triggered oxidative stress and podocyte injuries as demonstrated by increased apoptosis, diffuse podocyte foot process effacement, and decreased renal function. Innovation and Conclusion: This study demonstrates that LINC01619 functions as a competing endogenous RNA and regulates miR-27a/FOXO1-mediated ER stress and podocyte injury in DN. Antioxid. Redox Signal. 29, 355-376. PMID- 29334764 TI - Development of Gene Therapeutics for Head and Neck Cancer in China: From Bench to Bedside. AB - Head and neck cancer represents the seventh most common cancer worldwide. Although multidisciplinary sequential treatments have been used, there is still an urgent need for new treatment approaches that can effectively improve the outcomes of patients with advanced stages of head and neck cancer. Gene therapy is a rapidly evolving field in cancer therapy that has been shown to improve the efficacy of antitumor treatment. China is at the forefront in clinical trials and practice of gene therapy. Chinese researchers have mainly focused on gene therapeutics based on oncolytic virus and recombinant adenovirus expressing p53, antiangiogenesis factor or herpes simplex virus-thymidine kinase. Currently, two gene therapy drugs, Gendicine and Oncorine, have been marketed in China, and a number of upcoming gene therapy agents are under development for the treatment of head and neck cancer. Most gene therapy agents have demonstrated excellent tolerance. However, the therapeutic effects need further improvement. With current innovations in tumor biology and knowledge, gene therapy has great potential as a safe and effective anticancer treatment. In recent years, new gene therapy agents with promising effects have been incorporated into clinical trials in China. Thus, gene therapy may become an important part of anticancer therapy and is expected to improve the therapeutic effect of head and neck cancers in the near future. PMID- 29334765 TI - Examining Use of Mobile Phones for Sleep Tracking Among a National Sample in the USA. AB - Mobile technology has been designed to serve a number of functions relating to health, but we know little about individuals who use these tools to track sleep. This study utilized data from a cross-sectional, geographically diverse survey of adults in the USA (N = 934). Among the sample, 28.2% (n = 263) report current use of a mobile phone for sleep tracking. Income and gender were significant correlates of sleep tracking (p < 0.05). Compared to a poor diet, a reported "excellent" diet was associated with sleep tracking (p < 0.05). Interestingly, compared to individuals who never smoke, report of smoking "everyday" was associated with sleep tracking (p < 0.05). Finally, individuals who reported current use of their mobile device for other health functions (e.g., chat with their doctor or log symptoms) were more likely to report sleep tracking on their mobile device (p < 0.05). Results appear to suggest sleep tracking is common among individuals with good general health. PMID- 29334766 TI - AJMQ Newsletter: Register Now! Medical Quality 2018: Improving Population Health Through Health Equity and Patient Advocacy. PMID- 29334767 TI - A novel adaptive algorithm for 3D finite element analysis to model extracortical bone growth. AB - Extracortical bone growth with osseointegration of bone onto the shaft of massive bone tumour implants is an important clinical outcome for long-term implant survival. A new computational algorithm combining geometrical shape changes and bone adaptation in 3D Finite Element simulations has been developed, using a soft tissue envelope mesh, a novel concept of osteoconnectivity, and bone remodelling theory. The effects of varying the initial tissue density, spatial influence function and time step were investigated. The methodology demonstrated good correspondence to radiological results for a segmental prosthesis. PMID- 29334768 TI - Angular and metric analysis of the neural structures in the cerebellopontine angle. AB - INTRODUCTION: The cerebellopontine angle (CPA) is a subarachnoid space in the lateral aspect of the posterior fossa. In this study, we propose a complementary analysis of the CPA from the cerebellopontine fissure. METHODS: We studied 50 hemi-cerebelli in the laboratory of neuroanatomy and included a description of the CPA anatomy from the cerebellopontine fissure and its relationship with the flocculus and the 5th, 6th, 7th, and 8th cranial nerves (CN) origins. RESULTS: The average distance from the 5th CN to the mid-line (ML) was 19.2 mm, 6th CN to ML was 4.4 mm, 7-8 complex to ML was 15.8 mm, flocculus to ML was 20.5 mm, and flocculus to 5th CN was 11.5 mm, additionally, and the diameter of the flocculus was 9.0 mm. The angle between the vertex in the flocculus and the V CN and the medullary-pontine line was 64.8 degrees. DISCUSSION: The most common access to the CPA is through the retrosigmoid-suboccipital region and this approach can be done with the help of an endoscope. The anatomy of origins of neural structures tends to be preserved in cases of CPA lesions. CONCLUSION: Knowledge of the average distances between the neural structures in the cerebellar-pontine fissure and the angular relationships between these structures facilitates the use of surgical approaches such as microsurgery and endoscopy. PMID- 29334769 TI - Topographic Analysis of the Distal Femoral Condyle Articular Cartilage Surface: Adequacy of the Graft from Opposite Condyles of the Same or Different Size for the Osteochondral Allograft Transplantation. AB - Objective To analyze the topography of the opposite condyle to treat focal femoral condyle articular defects with an osteochondral allograft (OCA). Design Three groups were created: Group 1, same condyle with same width; Group 2, opposite condyle with same width; Group 3, opposite condyle with different width. Computed tomography (CT) of 22 cadaveric femoral hemi-condyles was used to create 3-dimensional CT models that were exported into point-cloud models. Three zones of the donor condyle (anterior, middle, and posterior) were quantified. Four defect sizes were created (15, 18, 23, 25 mm) at the weight-bearing region. The defect was moved throughout each donor condyle zone and the least distance was calculated, defined as the shortest distance between the defect and the donor condyle. Results The mean least distance increased with larger defect size in all groups, yet there was a less than 0.2 mm difference in the least distance among defect sizes. The 15, 18, and 23 mm defect models in Group 1 exhibited greater least distances at the anterior than middle and posterior zones. The 15 mm defect model exhibited greater least distance at the anterior zone than posterior zone in Group 3. However, there was a less than 0.05 mm difference in the mean least distance between zones. There was no significant difference in the least distance between groups. Conclusion OCAs from opposite condyles yield similar topographic matching to OCAs from the same condyles, suggesting that opposite condyles can be utilized. Clinical correlation and outcomes are necessary. PMID- 29334770 TI - Student Perceptions of Collaboration Skills in an Interprofessional Context: Development and Initial Validation of the Self-Assessed Collaboration Skills Instrument. AB - An integral component of interprofessional education (IPE) is the development of a collaboration-ready health-care workforce. While collaboration is a fundamental element of IPE, there is no existing measure of collaboration skills that is not context specific. This article describes the development and initial validation of the Self-Assessed Collaboration Skills (SACS) measure. Items were initially drawn from the Collaboration Skills Assessment Tool rubric, an educational assessment tool. The SACS measure was piloted in a sample of students in an introductory IPE course. Following scale revision, the SACS was piloted a second time in a sample of students in an IPE health systems course and then validated in a sample of students in an introductory IPE course. Exploratory factor analysis was used to assess scale factor structure in Pilots 1 and 2 and confirmatory factor analysis to confirm factor structure in the validation sample. Convergent and discriminant validity were also assessed. The final SACS measure is an 11-item scale consisting of three dimensions of collaboration: information sharing, learning, and team support. The SACS measure demonstrates high internal consistency and both convergent and discriminant validity as a measure of collaboration. The SACS can be implemented in any setting for assessing collaboration in clinical and nonclinical contexts. PMID- 29334772 TI - Spontaneous regression of a large skull base meningioma: case report. AB - We present the case of a 58 year old lady with a large middle cranial fossa meningioma (5 cm * 4 cm in maximal dimensions) which has considerably regressed without any treatment during seven years of follow up. While the tumour had remained radiologically static for the first three years, scans from year five post-diagnosis onwards have shown shrinkage of the meningioma from a calculated volume of 36 cm3 to 11.2 cm3. There has been no intratumoral haemorrhage or infarction and no medication or exogenous hormonal effect that could account for this effect. We reviewed the literature and report that this is only the second ever case of spontaneous regression of meningioma. PMID- 29334771 TI - Development of Anti-Human Mesothelin-Targeted Chimeric Antigen Receptor Messenger RNA-Transfected Peripheral Blood Lymphocytes for Ovarian Cancer Therapy. AB - CD19-targeted chimeric antigen receptor (CAR) engineered T/natural killer (NK) cell therapies can result in durable clinical responses in B-cell malignancies. However, CAR-based immunotherapies have been much less successful in solid cancers, in part due to "on-target off-tumor" toxicity related to expression of target tumor antigens on normal tissue. Based on preliminary observations of safety and clinical activity in proof-of-concept clinical trials, tumor antigen specific messenger RNA (mRNA) CAR transfection into selected, activated, and expanded T/NK cells may permit prospective control of "on-target off-tumor" toxicity. To develop a commercial product for solid tumors, mesothelin was selected as an antigen target based on its association with poor prognosis and overexpression in multiple solid cancers. It was hypothesized that selecting, activating, and expanding cells ex vivo prior to mRNA CAR transfection would not be necessary, thus simplifying the complexity and cost of manufacturing. Now, the development of anti-human mesothelin mRNA CAR transfected peripheral blood lymphocytes (CARMA-hMeso) is reported, demonstrating the manufacture and cryopreservation of multiple cell aliquots for repeat administrations from a single human leukapheresis. A rapid, automated, closed system for cGMP-compliant transfection of mRNA CAR in up to 20 * 109 peripheral blood lymphocytes was developed. Here we show that CARMA-hMeso cells recognize and lyse tumor cells in a mesothelin-specific manner. Expression of CAR was detectable over approximately 7 days in vitro, with a progressive decline of CAR expression that appears to correlate with in vitro cell expansion. In a murine ovarian cancer model, a single intraperitoneal injection of CARMA-hMeso resulted in the dose-dependent inhibition of tumor growth and improved survival of mice. Furthermore, repeat weekly intraperitoneal administrations of the optimal CARMA-hMeso dose further prolonged disease control and survival. No significant off-target toxicities were observed. These data support further investigation of CARMA-hMeso as a potential treatment for ovarian cancer and other mesothelin-expressing cancers. PMID- 29334773 TI - MACF1 Overexpression by Transfecting the 21 kbp Large Plasmid PEGFP-C1A-ACF7 Promotes Osteoblast Differentiation and Bone Formation. AB - Microtubule actin crosslinking factor 1 (MACF1) is a large spectraplakin protein known to have crucial roles in regulating cytoskeletal dynamics, cell migration, growth, and differentiation. However, its role and action mechanism in bone remain unclear. The present study investigated optimal conditions for effective transfection of the large plasmid PEGFP-C1A-ACF7 (~21 kbp) containing full-length human MACF1 cDNA, as well as the potential role of MACF1 in bone formation. To enhance MACF1 expression, the plasmid was transfected into osteogenic cells by electroporation in vitro and into mouse calvaria with nanoparticles. Then, transfection efficiency, osteogenic marker expression, calvarial thickness, and bone formation were analyzed. Notably, MACF1 overexpression triggered a drastic increase in osteogenic gene expression, alkaline phosphatase activity, and matrix mineralization in vitro. Mouse calvarial thickness, mineral apposition rate, and osteogenic marker protein expression were significantly enhanced by local transfection. In addition, MACF1 overexpression promoted beta-catenin expression and signaling. In conclusion, MACF1 overexpression by transfecting the large plasmid containing full-length MACF1 cDNA promotes osteoblast differentiation and bone formation via beta-catenin signaling. Current data will provide useful experimental parameters for the transfection of large plasmids and a novel strategy based on promoting bone formation for prevention and therapy of bone disorders. PMID- 29334774 TI - Three column osteotomy for adult spine deformity: comparison of outcomes and complications between kyphosis and kyphoscoliosis. AB - BACKGROUND: To compare the surgical outcomes and complications between kyphosis and kyphoscoliosis when using three-column osteotomies. METHODS: Adult spine deformity (ASD) patients with three column osteotomies from March 2005 to December 2014 in our center were retrospectively reviewed. Pre- and postoperative standing postero-anterior and lateral radiographs of the entire spine were obtained. Scoliosis Research Society-22 questionnaire [SRS-22] and Oswestry Disability Index [ODI] were administered preoperatively, postoperatively (surveys within 2 months after surgery), and at final follow-up. Patients were assigned to one of two groups according to pre-operative coronal curve magnitude: (1) if coronal curve <10 degrees , patients were assigned to kyphosis group (K group); (2) if coronal curve >40 degrees , patients were assigned to kyphoscoliosis group (S group). RESULTS: 33 ASD patients were assigned to the kyphosis group (K group), of which 26 received PSO (pedicle subtraction osteotomy) and 7 VCR (vertebral column resection). 76 patients were assigned to kyphoscoliosis group (S group), of which 50 received PSO and 26 VCR. Patients in the K group were significantly older than in the S group (42.8 vs. 33.7 years, p < .05). Significantly longer OT (operation time) and more EBL (estimated blood loss) were observed in the S group as compared to K group (OT: 282 vs. 205 min, p < .05; EBL: 1827 vs. 1214ml, p < .05). No significant difference was noted for number of fusion levels between the groups (12.4 vs. 12.7, p > .05). Pre-operative radiographic parameters demonstrated no difference of GK (global kyphosis) and SVA (sagittal vertical axis) between the two groups (GK: 74.7 degrees vs 76.2 degrees , p > .05; SVA:53.2 vs. 55.7mm, p > .05). K group had larger KF than S group (26% vs. 15%, p < .05). Overall complication rate was higher in S group than in K group (30.3% vs. 18.2%, p < .05). No difference of neurological complication rates between the two groups (9.1% vs. 10.5%, p > .05). CONCLUSIONS: Kyphoscoliosis group had less KF, GK correction and more OT, EBL and surgical complications when receiving three column osteotomies. PMID- 29334775 TI - Resistance to Acetaminophen Interference in a Novel Continuous Glucose Monitoring System. AB - Acetaminophen (APAP) can cause erroneously high readings in real-time continuous glucose monitoring (rtCGM) systems. APAP-associated bias in an investigational rtCGM system (G6) was evaluated by taking the difference in glucose measurements between rtCGM and YSI from 1 hour before to 6 hours after a 1-g oral APAP dose in 66 subjects with type 1 or type 2 diabetes. The interference effect was defined as the average post-dose (30-90 minutes) bias minus the average baseline bias for each subject. The clinically meaningful interference effect was defined as 10 mg/dL. The G6 system's overall mean (+/-SD) interference effect was 3.1 +/- 4.8 mg/dL (one-sided upper 95% CI = 4.1 mg/dL), significantly lower than 10 mg/dL. The G6 system's resistance to APAP interference should provide reassurance to those using the drug. PMID- 29334776 TI - Multiple intracranial aneurysms in a patient with type I Gaucher disease: a case report and literature review. AB - Multiple intracranial aneurysms (IAs) have never been reported in a patient with Gaucher disease (GD). A 69-year-old-female with type I GD presented with a left sixth nerve palsy due to a large posterior inferior cerebellar artery (PICA) aneurysm. Cerebral angiography demonstrated fifteen unruptured IAs (UIAs). PMID- 29334777 TI - Endovascular implantation of 125I seed combined with transcatheter arterial chemoembolization for unresectable hepatocellular carcinoma. AB - AIM: The purpose of this study was to evaluate the efficacy and safety of the endovascular implantation of 125I seed under ultrasound and x-ray guidance combined with transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC) patients with portal vein tumor thrombosis (PVTT). PATIENTS & METHODS: The study included 134 pathologically proven or clinically confirmed primary HCC patients with PVTT in our hospital from January 2013 to June 2015. RESULTS & CONCLUSION: Compared with the TACE treatment alone, the combination therapy of 125I seed implantation with TACE significantly prolonged the median survival time and improved the 6-, 12- and 18-month survival rates for HCC patients with PVTT. In addition, the type III PVTT and tumor size were independent predictors for poor prognosis of HCC patients with PVTT. PMID- 29334778 TI - Fluid Dynamic Analysis of Hand-Pump Infuser and UROMAT Endoscopic Automatic System for Irrigation Through a Flexible Ureteroscope. AB - INTRODUCTION: To evaluate the flow characteristics produced by a manual and automated-pump irrigation system connected to a flexible ureteroscope. MATERIALS AND METHODS: An in vitro analysis of a manual hand-pump infuser (HP) and the UROMAT Endoscopic Automatic System for Irrigation(r) (E.A.S.I.) pump was performed. Standard irrigation tubing was used to connect a three-way valve to a flexible ureteroscope, the irrigation system, and a digital manometer. Flow rate and irrigation pressure measurements were recorded over a 15-minute period using pressure settings of 150 and 200 mm Hg for both irrigation pump systems. Once the HP was inflated to the initial pressure, it was not reinflated over the course of the trial. Data were collected with the working channel unoccupied and with placement of a 200 MUm (0.6F) holmium laser fiber, 1.7F nitinol stone retrieval basket, or 2.67F guidewire. RESULTS: The difference in pressure measured at the site of inflow of irrigation to the ureteroscope was significantly greater using the HP compared to the E.A.S.I. pump at pressure settings of 150 mm Hg with and without the use of ureteroscopic instrumentation (p < 0.001), and at 200 mm Hg with instrumentation in the working channel (p < 0.01). There was no significant difference in the flow rate of irrigation through the open-channel ureteroscope over the course of 5 minutes between the two pump systems. CONCLUSION: The flow rates of irrigation produced by the HP and the E.A.S.I. pump are similar at pressures of 150 and 200 mm Hg irrespective of the occupancy of a ureteroscope's working channel during the first 5-minutes of irrigation. Irrigation pressure at the entry site of the ureteroscope is subject to significant variability with use of the HP compared to the E.A.S.I. pump irrigation system. PMID- 29334779 TI - Extra-articular tenosynovial giant cell tumor of diffuse type in the temporal area with brain parenchymal invasion: a case report. AB - Tenosynovial giant cell tumor of diffuse type is a locally aggressive neoplasm that most commonly arises in the lower extremities. Herein, we report for the first time a case of an extra-articular tenosynovial giant cell tumor of diffuse type in the temporal region with brain parenchymal invasion. Imaging studies revealed an intracranial expansile mass in the temporal bone without involvement of the temporomandibular joint. The unusual location of the tumor without involvement of the joint and the presence of brain parenchymal invasion made this case challenging to diagnose. PMID- 29334781 TI - Correction to: Coulter et al., Real-time symptom reporting during elective intracranial pressure monitoring using an interactive handset. PMID- 29334780 TI - Rules governing the mechanism of epigenetic reprogramming memory. AB - AIM: Disclosing the mechanisms that regulate reprogramming memory. MATERIALS & METHODS: We established computational procedure to find DNA methylation somatic memory sites (SMSs) at single CpGs and integrated them with genomics, epigenomics, transcriptomics and imprinting information. RESULTS & CONCLUSION: Reprogramming memory persists at late passages in low methylated regions. Contrarily to hypomethylated, hypermethylated SMSs occur at evolutionary conserved sites overlapping active transcription loci in dynamic chromatin regions. The epigenetic-memory molecular origin is the expression of source-cell transcription factors protecting hypomethylated SMSs in euchromatin from de novo methylation, keeping source-cell lineage-specific loci in induced pluripotent stem (iPS) cells incompletely silenced. Sites in lineage-specific genes of different-from-those-of-the-source-cell lineages remain hypermethylated in heterochromatin regions becoming permanently silenced. SMSs cause differential expression between iPS cells and embryonic stem cells through two mechanisms: 'epigenetic/expression memory rule', the DNA unreprogramming methylation status coupled with chromatin states induces differentially expressed genes. 'Imprinting control', the change of DNA methylation status in imprinting control regions induces differential expression of imprinted genes. PMID- 29334782 TI - Outcomes of Bilateral vs Unilateral Ankle Arthrodesis. AB - BACKGROUND: While ankle arthrodesis is a common treatment for severe ankle osteoarthritis, performing bilateral ankle arthrodesis is controversial because of associated problems, such as severe gait abnormality and bilateral loss of talocrural joint motion. Furthermore, few reports exist regarding the detailed outcomes of bilateral ankle arthrodesis. Therefore, we aimed to compare the outcomes of bilateral ankle arthrodesis with those of unilateral ankle arthrodesis, using both subjective and objective assessments. METHODS: The data from 20 patients (10 each in the bilateral and unilateral groups), who underwent arthrodesis between 2005 and 2015, were retrospectively reviewed. The minimum follow-up duration was 2 years. Radiographic outcomes were assessed using radiographs and computed tomography. Clinical outcomes were assessed using the Japanese Society for Surgery of the Foot (JSSF) scale and the Self-Administered Foot Evaluation Questionnaire (SAFE-Q). RESULTS: With the numbers available, no significant group differences were observed for any of the patient characteristics or postoperative range of motion. Mean JSSF scale scores significantly improved in both groups ( P < .001); however, scores on the SAFE-Q subscale for "social functioning" were significantly lower in the bilateral group compared to the unilateral group ( P = .049). CONCLUSIONS: Within the limitations of the current study design, bilateral ankle arthrodesis did not appear to be inferior to unilateral ankle arthrodesis, with the possible exception of social functioning ability. Thus, bilateral ankle arthrodesis can be considered a viable treatment option. LEVEL OF EVIDENCE: Level III, retrospective cohort study. PMID- 29334783 TI - Frailty: A global measure of the multisystem impact of COPD. AB - Chronic obstructive pulmonary disease (COPD) is a multisystem disease that resembles the accumulation of multiple impairments seen in aging. A comprehensive geriatric assessment (CGA) captures multisystem deficits, from which a frailty index (FI) can be derived. We hypothesized that patients with COPD would be frailer than a comparator group free from respiratory disease. In this cross sectional analysis, the CGA questionnaire was completed and used to derive an FI in 520 patients diagnosed with COPD and 150 comparators. All subjects were assessed for lung function, body composition, 6-minute walking distance (6MWD), and handgrip strength. Patients completed validated questionnaires on health related quality of life and respiratory symptoms. Patients and comparators were similar in age, gender, and body mass index, but patients had a greater mean +/- SD FI 0.16 +/- 0.08 than comparators 0.05 +/- 0.03. In patients, a stepwise linear regression 6MWD ( beta = -0.43), number of comorbidities ( beta = -0.38), handgrip ( beta = -0.11), and number of exacerbations ( beta = 0.11) were predictors of frailty (all p < 0.01). This large study suggests patients with COPD are frailer than comparators. The FI derived from the CGA captures the deterioration of multiple systems in COPD and provides an overview of impairments, which may identify individuals at increased risk of morbidity and mortality in COPD. PMID- 29334784 TI - Unilateral lag screw fixation of isolated non-union atlas lateral mass fracture: a new technical note. AB - We describe a novel and new technique of posterior unilateral lag screw fixation of non-union atlas lateral mass fracture. A 46-year-old man presented with cervical pain and tenderness after a vehicle turn over accident and he was diagnosed to have left atlas lateral mass fracture. He was initially treated by immobilization using Minerva orthosis. About 2 months later, he developed severe neck pain and limitation of motion and thus he was scheduled for operation due to non-union atlas lateral mass fracture. A 28 mm lag screw was inserted under anterior-posterior and lateral fluoroscopic views. The entrance point was at the dorsal aspect of left atlas posterior arc at its junction to the lateral mass, and by using the trajectory of 10 degrees medial and 22 degrees cephalad fracture reduction was achieved. Unilateral lag screw fixation of atlas fractures is an appropriate, safe and effective surgical technique for the management of unilateral atlas fractures. PMID- 29334785 TI - The use of combination immunotherapies as front-line therapy for non-small-cell lung cancer. PMID- 29334786 TI - Acute-on-chronic liver failure in chronic hepatitis B: an update. AB - INTRODUCTION: Acute-on-chronic liver failure is a common pattern of end-stage liver disease in clinical practice and occurs frequently in patients with chronic hepatitis B or HBV-related cirrhosis. New progress in recent years leads to a better understanding of this disease. Areas covered: This review updates the current comprehensive knowledge about HBV-ACLF from epidemiological studies, experimental studies, and clinical studies and provide new insights into the definition, diagnostic criteria, epidemiology, nature history, pathogenesis, treatment and prognostication of HBV-ACLF. Expert commentary: Patients with chronic hepatitis B or HBV-related cirrhosis are at risk of developing acute-on chronic liver failure, with multi-organ failure and high short-term mortality. The precipitating events can be intra-hepatic or extra-hepatic and the underlying chronic liver injury can be cirrhotic or non-cirrhotic. Host and viral factors contribute to the susceptibility of developing HBV-ACLF. Systemic inflammation is the driver of HBV-ACLF, which can be attributed to non-sterile and sterile factors. Liver transplantation is the definitive treatment for HBV-ACLF. Cell therapy is a promising alternative to LT, but requires validation and still has concern of long-term safety. Other medical therapies, such as nucleoside analogue, artificial liver supporting and glucocorticoid may improve survival in a specific subgroup. New scoring systems improve the accuracy of prognostication in HBV-ACLF, which is critical for early identification of candidates for LT. PMID- 29334787 TI - Analysis of endocannabinoid receptors and enzymes in the post-mortem motor cortex and spinal cord of amyotrophic lateral sclerosis patients. AB - OBJECTIVE: We have investigated the endocannabinoid system in the motor cortex of motor neuron disease (MND) patients. METHODS: Post-mortem samples from MND patients and controls were used for immunostaining and/or Western blotting analysis of endocannabinoid elements. RESULTS: We did not find any evidence of neuronal losses in the motor cortex of MND patients, but elevations in glial markers Iba-1 and GFAP were evident. We found no changes in FAAH and MAGL enzymes and in the CB1 receptor, which correlated with the lack of cortical neuron death. By contrast, the Western blotting analysis of CB2 receptors proved an increase in the motor cortex corroborated by immunostaining, correlating with the elevated gliosis in these patients. Double-labeling analyses revealed that this elevated CB2 receptor immunostaining was located in GFAP-labelled astroglial cells. However, we also found CB2 receptor labeling in cortical neurons confirmed with double immunofluorescence with the neuronal marker MAP-2. This was also found in the spinal cord, using double-labeling with the spinal motor neuron marker choline-acetyl transferase. This happened in both patients and controls, despite these neurons experienced an important degeneration in patients reflected in reduced Nissl staining, TDP-43 immunostaining and CB1 receptor levels measured by Western blotting. CONCLUSION: We have confirmed that CB2 receptors are elevated in the motor cortex of MND patients associated with the reactive gliosis. This phenomenon is previous to neuronal losses. We also found CB2 receptors in cortical and spinal motor neurons. These observations support that targeting this receptor may serve for developing neuroprotective therapies in MNDs. PMID- 29334788 TI - Latissimus Dorsi Flap in Breast Reconstruction: Recent Innovations in the Workhorse Flap. AB - BACKGROUND: Surgeons employ the latissimus dorsi flap (LDF) for reconstruction of a large variety of breast cancer surgery defects, including quadrantectomy, lumpectomy, modified radical mastectomy, and others. The LDF may be used in delayed or immediate reconstruction, in combination with tissue expanders for a staged reconstruction, with implant-based immediate reconstruction, or alone as an autogenous flap. METHODS: The authors discuss the historical uses and more recent developments in the LDF. More recent advancements, including the "scarless" approach and augmentation with the thoracodorsal artery perforator flap, are discussed. RESULTS: The LDF is a reliable means for soft tissue coverage providing form and function during breast reconstruction with acceptable perioperative and long-term morbidities. CONCLUSIONS: When there is a paucity of tissue, the LDF can provide tissue volume in autologous reconstruction, as well as a reliable vascular pedicle for implant-based reconstruction as in the setting of irradiated tissue. PMID- 29334789 TI - Circular RNA expression in ovarian endometriosis. AB - AIM: Circular RNAs (circRNAs) with miRNA response elements (MREs) could function as competing endogenous RNA (ceRNA) in regulating gene expression. This study was carried out to identify the expression profile and role of circRNAs in endometriosis. MATERIALS & METHODS: Microarray assay was performed in four paired ovarian endometriomas and eutopic endometrium, followed by quantitative real-time RT-PCR in 24 paired samples. Bioinformatical algorithms were used to predict MREs, as well as ceRNA and KEGG pathway analysis. RESULTS: We identified 262 upregulated and 291 downregulated circRNAs, binding with 1225 MREs. The ceRNA network included 122 miRNAs and 137 mRNAs, which are involed in nine pathways. CONCLUSION: CircRNAs are differentially expressed in endometriosis, which might be related with pathogenesis of endometriosis. PMID- 29334790 TI - Cognitive work hardening for return to work following depression: An intervention study: Le reentrainement cognitif au travail pour favoriser le retour au travail a la suite d'une depression : etude d'intervention. AB - BACKGROUND: Work absences due to depression are prevalent; however, few interventions exist to address the return-to-work challenges following a depressive episode. PURPOSE: This mixed-methods study aimed to (a) evaluate the effectiveness of cognitive work hardening in preparing people with depression to return to work and (b) identify key elements of the intervention. METHOD: A single group ( n = 21) pretest-posttest study design was used incorporating self report measures (Work Ability Index, Multidimensional Assessment of Fatigue, Beck Depression Inventory II) with interviews at intervention completion and at 3 month follow-up. Descriptive statistics, paired-samples t test, and content analysis were used to analyze the data. FINDINGS: Work ability, fatigue, and depression severity significantly improved postintervention. Participants identified structure, work simulations, realism of simulated work environment, support, and education as key intervention elements. IMPLICATIONS: Findings underscore an occupationally focused return-to-work intervention for people recovering from depression with potential for wider adoption and future research. PMID- 29334792 TI - Mothers' opinions on being asked about exposure to intimate partner violence in child healthcare centres in Sweden. AB - Intimate partner violence (IPV) constitutes a hidden health risk for exposed mothers and children. In Sweden, screening for IPV in healthcare has only been routine during pregnancy, despite an increase in IPV following childbirth. The arguments against routine questions postpartum have concerned a lack of evidence of beneficial effects as well as fear of stigmatizing women or placing abused women at further risk. Increased understanding of women's attitudes to routine questions may allay these fears. In this study, 198 mothers in 12 child healthcare centres (CHCs) filled in a short questionnaire about their exposure and received information on IPV at a regular baby check-up visit. The mothers' lifetime prevalence of exposure to IPV was 16%. One hundred and twenty-eight mothers participated in a telephone interview, giving their opinion on the screening experience. The intervention was well-received by most of the mothers who reported that questions and information on IPV are essential for parents, considering the health risks for children, and that the CHC is a natural arena for this. Necessary prerequisites were that questioning be routine to avoid stigmatizing and be offered in privacy without the partner being present. PMID- 29334791 TI - Application of Fluorescence-Guided Surgery to Subsurface Cancers Requiring Wide Local Excision: Literature Review and Novel Developments Toward Indirect Visualization. AB - The excision of tumors by wide local excision is challenging because the mass must be removed entirely without ever viewing it directly. Positive margin rates in sarcoma resection remain in the range of 20% to 35% and are associated with increased recurrence and decreased survival. Fluorescence-guided surgery (FGS) may improve surgical accuracy and has been utilized in other surgical specialties. ABY-029, an anti-epidermal growth factor receptor Affibody molecule covalently bound to the near-infrared fluorophore IRDye 800CW, is an excellent candidate for future FGS applications in sarcoma resection; however, conventional methods with direct surface tumor visualization are not immediately applicable. A novel technique involving imaging through a margin of normal tissue is needed. We review the past and present applications of FGS and present a novel concept of indirect FGS for visualizing tumor through a margin of normal tissue and aiding in excising the entire lesion as a single, complete mass with tumor-free margins. PMID- 29334794 TI - A look at the progress of treating pancreatic cancer over the past 20 years. AB - INTRODUCTION: Pancreatic cancer is known to be the deadliest of all common cancers. Despite all efforts in pancreatic cancer treatment, the five-year survival rates at diagnosis over the past 20 years have only increased from 5% to 8%. Assuming that pancreatic cancer is going to become the second most frequent cause of cancer related death in the next 20 years, we are all encouraged to treat patients in clinical trials to gain improvements in this devastating disease. Areas covered: This review will provide a summary of pancreatic cancer treatment over the last 20 years, starting with the pivotal study in 1997 which showed the superiority of gemcitabine over 5-FU in advanced pancreatic cancer and is marked as the beginning of a new era in pancreatic cancer treatment. This review will also focus on improvements in different areas of treatment, including pancreatic surgery, adjuvant treatment, neoadjuvant therapy and palliative therapy. Expert commentary: The treatment of pancreatic cancer has changed substantially in the last 20 years compared to almost no improvements in the decades before. This provides hope that more effective treatment options will become available in the near future. Particularly, new concepts such as neoadjuvant therapy in resectable and borderline-resectable tumors may potentially shift treatment strategies. PMID- 29334793 TI - Controlled synthesis and size effects of multifunctional mesoporous silica nanosystem for precise cancer therapy. AB - Nanomaterials-based drug delivery systems display potent applications in cancer therapy, owing to the enhanced permeability and retention effect and diversified chemical modification. In this study, we have tailored and synthesized different sized mesoporous silica nanoparticles (MSNs) through reactant control to investigate the relevancy of nanoparticle size toward anticancer efficacy and suppressing cancer multidrug resistance. The different sized MSNs loaded with anticancer ruthenium complex (RuPOP) and conjugated with folate acid (FA) to enhance the selectivity between cancer and normal cells. The nanosystem (Ru@MSNs) can specifically recognize HepG2 hepatocellular carcinoma cells, thus enhance accumulation and selective cellular uptake. The smaller sized (20 nm) Ru@MSNs exhibit higher anticancer activity against HepG2 cells, while the larger sized (80 nm) Ru@MSNs exhibit higher inhibitory effect against DOX-resistant hepatocellular carcinoma cells (R-HepG2). Moreover, Ru@MSNs induced ROS overproduction in cancer cells, leading to DNA damage and p53 phosphorylation, consequently promoting cancer cells apoptosis. Ru@MSNs (80 nm) also inhibited ABCB1 and ABCG2 expression in R-HepG2 cells to prevent drug efflux, thus overcome multidrug resistance. Ru@MSNs also inhibited tumor growth in vivo without obvious toxicity in major organs of tumor-bearing nude mice. Taken together, these results verify the size effects of MSNs nanosystem for precise cancer therapy. PMID- 29334795 TI - Progress in the development of histamine H3 receptor antagonists/inverse agonists: a patent review (2013-2017). AB - INTRODUCTION: Since years, ligands blocking histamine H3 receptor (H3R) activity (antagonists/inverse agonists) are interesting targets in the search for new cures for CNS disorders. Intensive works done by academic and pharmaceutical company researchers have led to many potent and selective H3R antagonists/inverse agonists. Some of them have reached to clinical trials. Areas covered: Patent applications from January 2013 to September 2017 and the most important topics connected with H3R field are analysed. Espacenet, Patentscope, Pubmed, GoogleScholar or Cochrane Library online databases were principially used to collect all the materials. Expert opinion: The research interest in histamine H3R field is still high although the number of patent applications has decreased during the past 4 years (around 20 publications). Complexity of histamine H3R biology e.g. many isoforms, constitutive activity, heteromerization with other receptors (dopamine D2, D1, adenosine A2A) and pharmacology make not easy realization and evaluation of therapeutic potential of anti-H3R ligands. First results from clinical trials have verified potential utility of histamine H3R antagonist/inverse agonists in some diseases. However, more studies are necessary for better understanding of an involvement of the histaminergic system in CNS related disorders and helping more ligands approach to clinical trials and the market. Lists of abbreviations: hAChEI - human acetylcholinesterase inhibitor; hBuChEI - human butyrylcholinesterase inhibitor; hMAO - human monoamine oxidase; MAO - monoamine oxidase. PMID- 29334796 TI - The systematic review of randomized controlled trials of PCSK9 antibodies challenges their "efficacy breakthrough" and the "lower, the better" theory. AB - BACKGROUND: A Cochrane review with meta-analysis showed controversial results about the efficacy of PCSK9 antibodies in the prevention of cardiovascular diseases. This review gives the opportunity to test the relationship between LDL C levels and cardiovascular events. METHODS: The authors analyzed the relationship between the calculated LDL-C lowering and the risk of all-cause mortality, fatal and non-fatal myocardial infarction, fatal and non-fatal stroke, any adverse event, cardiovascular events and cardiovascular disease mortality. RESULTS: No beneficial relationship was found between LDL-C lowering and cardiovascular events explored by meta-regression; instead, there was a trend toward harm. For any of the other outcomes there was no significant association between LDL-C lowering and risk. Furthermore, the authors calculated the efficacy that would be expected through the LDL-C lowering showed in the meta-analysis, considering widely accepted predictions. These were respected only for stroke, while the observed efficacy on other cardiovascular events was significantly lower than the expected, and no significant result was observed at all for fatal outcomes. A separate meta-analysis of trials recruiting familial hypercholesterolemia patients have showed a tendency to harm for almost all outcomes. CONCLUSIONS: The relationship between LDL-C lowering and cardiovascular events has not showed any significant association (and even a tendency toward harm), challenging the "lower the better" theory. A separate meta-analysis of trials recruiting familial hypercholesterolemia patients has showed a tendency to harm for all outcomes with PCSK9 antibodies. Therefore, at the moment, the data available from randomized trials does not clearly support the use of these antibodies. PMID- 29334797 TI - Association of functional MMP-2 gene variant with intracranial aneurysms: case control genetic association study and meta-analysis. AB - INTRODUCTION: Abnormalities in Matrix Metalloproteinase (MMP) genes, which are important in extracellular matrix (ECM) maintenance and therefore arterial wall integrity are a plausible underlying mechanism of intracranial aneurysm (IA) formation, growth and subsequent rupture. We investigated whether the rs243865 C > T SNP (single nucleotide polymorphism) within the MMP-2 gene (which influences gene transcription) is associated with IA compared to matched controls. MATERIALS AND METHODS: We conducted a case-control genetic association study, adjusted for known IA risk factors (smoking and hypertension), in a UK Caucasian population of 1409 patients with intracranial aneurysms (IA), and 1290 matched controls, to determine the association of the rs243865 C > T functional MMP-2 gene SNP with IA (overall, and classified as ruptured and unruptured). We also undertook a meta analysis of two previous studies examining this SNP. RESULTS: The rs243865 T allele was associated with IA presence in univariate (OR 1.18 [95% CI 1.04-1.33], p = .01) and in multi-variable analyses adjusted for smoking and hypertension status (OR 1.16 [95% CI 1.01-1.35], p = .042). Subgroup analysis demonstrated an association of the rs243865 SNP with ruptured IA (OR 1.18 [95% CI 1.03-1.34] p = .017), but, not unruptured IA (OR 1.17 [95% CI 0.97-1.42], p = .11). CONCLUSIONS: Our study demonstrated an association between the functional MMP-2 rs243865 variant and IAs. Our findings suggest a genetic role for altered extracellular matrix integrity in the pathogenesis of IA development and rupture. PMID- 29334798 TI - Vulvar vestibular effects of ospemifene: a pilot study. AB - The study aimed to assess the effects of ospemifene on vulvar vestibule in postmenopausal women with vulvar pain and dyspareunia. Fifty-five postmenopausal women used oral ospemifene 60 mg/d for 60 d. Symptoms of dryness, burning, and dyspareunia were evaluated on a 10 cm visual analog scale. Visual examination of the vulvar vestibule was also conducted. Patients also underwent current perception threshold (CPT) testing obtained from the vulvar vestibule. Fifty-five patients (94.6%) completed the treatment. Hot flashes were the most frequent adverse effects, but this led to a discontinuation of therapy in three patients (5.4%). After therapy, there was a statistically significant decrease from the baseline in the mean scores for dryness, burning, and dyspareunia and reduction of vestibular trophic score (baseline value of 11.2-4.2 after the therapy, p <= 002) and cotton swab test scores (2.81 compared with 1.25, p = .001). There was a difference in CPT values for all nerve fibers and more consistent for C fibers ( 38% of sensitivity). These results confirm the efficacy of ospemifene on postmenopausal vestibular symptoms and signs; moreover, the drug was effective in normalizing vestibular innervation sensitivity. PMID- 29334799 TI - Potential of EPR spin-trapping to investigate in situ free radicals generation from skin allergens in reconstructed human epidermis: cumene hydroperoxide as proof of concept. AB - The first step in the development of skin sensitisation to a chemical, and in the elicitation of further allergic contact dermatitis (ACD), is the binding of the allergen to skin proteins after penetrating into the epidermis. The so-formed antigenic adduct is then recognised by the immune system as foreign to the body. Sensitising organic hydroperoxides derived from autoxidation of natural terpenes are believed to form antigens through radical-mediated mechanisms, although this has not yet been established. So far, in vitro investigations on reactive radical intermediates derived from these skin sensitisers have been conducted in solution, yet with experimental conditions being far away from real-life sensitisation. Herein, we report for the first time, the potential use of EPR spin-trapping to study the in situ generation of free radicals derived from cumene hydroperoxide CumOOH in a 3D reconstructed human epidermis (RHE) model, thus much closer to what may happen in vivo. Among the undesirable effects associated with dermal exposure to CumOOH, it is described to cause allergic and irritant dermatitis, being reported as a significant sensitiser. We considered exploiting the usage of spin-trap DEPMPO as an extensive view of all sort of radicals derived from CumOOH were observed all at once in solution. We showed that in the EpiskinTM RHE model, both by incubating in the assay medium and by topical application, carbon radicals are mainly formed by redox reactions suggesting the key role of CumOOH-derived carbon radicals in the antigen formation process. PMID- 29334801 TI - Bu-Shen-Yi-Qi formula impairs cytotoxicity of NK cells by up-regulating IDO expression in trophoblasts. AB - Recurrent spontaneous abortion (RSA) is a common health problem that affects about 5% of fertile women, when it occurs for unknown reasons, it is called unexplained recurrent spontaneous abortion (URSA). Traditional Chinese medicine, such as Bu-Shen-Yi-Qi formula which consists of Dangshen, Tusizi, Baizhu, Baishuo, Duzhong, Sangjisheng, Sugeng, and Tiaohuangqin, has played an invaluable role in the treatment of RSA since ancient times. However, the mechanism of how it takes effect is still not clear. To identify Bu-Shen-Yi-Qi formula could modulate immune condition at maternal-fetal interface via its effect on trophoblasts, HTR-8 of different treatment were co-cultured with peripheral or decidual natural killer (NK) cells, and the receptors such as NKP30 and NKP46 expression on NK cells were measured by flow cytometry (FCM). In this study, we found that herb medium could increase the IDO expression at appropriate concentrations. As an inhibitor of IDO, 1-MT could impair the inhibitory function of trophoblasts on NK cells. Furthermore, Bu-Shen-Yi-Qi formula could enhance the inhibitory function of trophoblasts on NK cells. In conclusion, Bu-Shen-Yi-Qi formula can inhibit NK cytotoxicity by up-regulating IDO expression in trophoblasts and play a role in the treatment of URSA patients. PMID- 29334802 TI - Youth and young adults with acquired brain injury transition towards work-related roles: a qualitative study. AB - PURPOSE: The purpose of this research was to explore the experiences of youth and young adults with acquired brain injury as they transition towards work-related roles. Little is known about employment experiences among this age group. Understanding their perspectives can inform programs and clinical practice. MATERIALS AND METHODS: A descriptive qualitative design, including semi structured interviews with 14 participants (8 females; 6 males) was used. Interviews were transcribed verbatim and analyzed using an open-coding, thematic approach. RESULTS: Three major themes emerged related to the experience of work related roles: (1) getting to know the new me; (2) navigating support systems; and (3) taking control of my experience. Some participants used coping strategies to acquire and/or maintain work-related roles, while others felt limited by their condition. CONCLUSIONS: A variety of work-related roles, people, and environments directly and indirectly influenced the work-related transition of youth and young adults with acquired brain injury. Individuals expressed the importance of acquired brain injury awareness in informing others about their impairments. In fact, a lack of acquired brain injury awareness was often a main reason for receiving less than adequate support and accommodations. Without an understanding of acquired brain injury, people in the lives of these individuals were unable to perceive the legitimacy of acquired brain injury-related impairments. Implications for rehabilitation The purpose of this study is to understand the experiences of youth and young adults with acquired brain injury as they transition into work-related roles. Using these experiences as a guideline can promote acquired brain injury awareness, and contribute to how current interventions are designed and delivered. Clinicians should ensure that youth and young adults with acquired brain injury have access to the resources they need to maximize their independence. Healthcare professionals can play a pivotal role in relaying important acquired brain injury-related education, implementing suitable treatment plans, and providing them with effective tips to help them through their transition. A healthy transition to work-related roles should include ample social support and communication, acquired brain injury-related information that informs the community of acquired brain injury impairments, needs, and recovery trajectory, as well as adequate and consistent coordination within and between the person and the environment. PMID- 29334800 TI - Research progress of self-assembled nanogel and hybrid hydrogel systems based on pullulan derivatives. AB - Polymer nano-sized hydrogels (nanogels) as drug delivery carriers have been investigated over the last few decades. Pullulan, a nontoxic and nonimmunogenic hydrophilic polysaccharide derived from fermentation of black yeast like Aureobasidium pullulans with great biocompatibility and biodegradability, is one of the most attractive carriers for drug delivery systems. In this review, we describe the preparation, characterization, and 'switch-on/off' mechanism of typical pullulan self-assembled nanogels (self-nanogels), and then introduce the development of hybrid hydrogels that are numerous resources applied for regenerative medicine. A major section is used for biomedical applications of different nanogel systems based on modified pullulan, which exert smart stimuli responses at ambient conditions such as charge, pH, temperature, light, and redox. Pullulan self-nanogels have found increasingly extensive application in protein delivery, tissue engineering, vaccine development, cancer therapy, and biological imaging. Functional groups are incorporated into self-nanogels and contribute to expressing desirable results such as targeting and modified release. Various molecules, especially insoluble or unstable drugs and encapsulated proteins, present improved solubility and bioavailability as well as reduced side effects when incorporated into self-nanogels. Finally, the advantages and disadvantages of pullulan self-nanogels will be analyzed accordingly, and the development of pullulan nanogel systems will be reviewed. PMID- 29334803 TI - In vitro fermentation of gum acacia - impact on the faecal microbiota. AB - Interest in the consumption of gum acacia (GA) has been associated with beneficial health effects, which may be mediated in part by prebiotic activity. Two doses of GA and fructooligosaccharide (FOS) (1 and 2%) were tested for their efficacy over 48 h in pH- and temperature-controlled anaerobic batch cultures inoculated with human faeces. Samples were taken after 0, 5, 10, 24 and 48 h of fermentation. The selective effects of GA (increases in Bifidobacterium spp. and Lactobacillus spp.) were similar to those of the known prebiotic FOS. The 1% dose of substrates showed more enhanced selectivity compared to the 2% dose. The fermentation of GA also led to SCFA production, specifically increased acetate after 10, 24 and 48 h of fermentation, propionate after 48 h and butyrate after 24 and 48 h. In addition, FOS led to significant increase in the main SCFAs. These results suggest that GA displays potential prebiotic properties. PMID- 29334804 TI - Characterizing on-road driving performance in individuals with traumatic brain injury who pass or fail an on-road driving assessment. AB - OBJECTIVE: To characterise on-road driving performance in individuals with traumatic brain injury who fail on-road driving assessment, compared with both those who pass assessment and healthy controls, and the injury and cognitive factors associated with driving performance. STUDY DESIGN: Cross-sectional. METHODS: Forty eight participants with traumatic brain injury (Age M = 40.50 SD = 14.62, 77% male, post-traumatic amnesia days M = 28.74 SD =27.68) and 48 healthy matched controls completed a standardised on-road driving assessment in addition to cognitive measures. RESULTS: Individuals with traumatic brain injury who passed on-road driving assessment performed no differently from controls while individuals with traumatic brain injury who failed the assessment demonstrated significantly worse driving performance relative to controls across a range of driving manoeuvres and error types including observation of on-road environment, speed control, gap selection, lane position, following distance and basic car control. Longer time post-injury and reduced visual perception were both significantly correlated with reduced driving skills. CONCLUSIONS: This exploratory study indicated that drivers with traumatic brain injury who failed on-road assessment demonstrated a heterogeneous pattern of impaired driving manoeuvres, characterised by skill deficits across both operational (e.g., basic car control and lane position) and tactical domains (e.g., following distance, gap selection, and observation) of driving. These preliminary findings can be used for implementation of future driving assessments and rehabilitation programs. Implications for rehabilitation Clinicians should be aware that the majority of individuals with traumatic brain injury were deemed fit to resume driving following formal on-road assessment, despite having moderate to very severe traumatic brain injuries. Drivers with traumatic brain injury who failed an on-road assessment demonstrated a heterogeneous pattern of impaired skills including errors with observation, speed regulation, gap selection, and vehicle control and accordingly had difficulty executing a diverse range of common driving manoeuvres. Comprehensive, formal on-road assessments, incorporating a range of skills, and manoeuvres, are needed to evaluate readiness to return to driving following traumatic brain injury. Individually tailored driver rehabilitation programs need to address these heterogeneous skill deficits to best support individuals to make a successful return to driving post-traumatic brain injury. PMID- 29334806 TI - Effect of scuba diving on the oxidant/antioxidant status, SIRT1 and SIRT3 expression in recreational divers after a winter nondive period. AB - The aim of this study was to examine the effects of scuba diving on oxidative damage markers in erythrocytes and plasma, antioxidant system in peripheral blood mononuclear cells (PBMCs), as well as sirtuin 1 (SIRT1) and sirtuin 3 (SIRT3) gene expressions in recreational divers after a winter nondive period (at least 5 months). For that purpose, 17 male recreational divers performed an immersion at a depth of 30 m for 30 min. Blood samples were collected immediately before and after diving, 3 and 6 h after diving. Erythrocyte lipid peroxidation measured by thiobarbituric-reactive substances (TBARS) method was significantly increased immediately after diving, but returned to the baseline 6 h after diving, while no significant change was found for plasma TBARS and protein carbonyl derivates in both plasma and erythrocytes. Diving-induced catalase (CAT), superoxide dismutase 2 (SOD2), and consequently total superoxide dismutase (SOD) activities in the PBMC samples (significantly increased immediately after diving, reached the maximum activities 3 h after diving, while 6 h after diving only CAT activity remained significantly increased). No significant change was observed for SOD1 activity and gene expression, as well as SOD2 expression, while CAT and SIRT1 expressions were slightly decreased immediately after diving and 3 h after diving. Interestingly, SIRT3 expression was significantly increased 6 h after diving. In conclusion, after the first dive to 30 m after a nondive season, activation of antioxidant defence was not sufficient to prevent oxidative damage, while SIRT3 upregulation could be a step towards an adaptive response to the diving. PMID- 29334807 TI - Methodologies for the airbrush application of MALDI matrices. AB - There is still a need to develop reliable and robust matrix deposition methods for matrix-assisted laser desorption/ionisation mass spectrometry that are applicable to a range of matrices, solvents and analyte types. This paper presents a robust methodology for the airbrush application of matrices along with the implications of varying the set-up and airbrush parameters. A small number of organic analytes and metal salts are analysed in both positive and negative ion modes to exemplify this methodology. In the analyses with the airbrush deposited matrices, performance was enhanced when compared to standard pipette deposition with the need for a search for sweat spots greatly diminished due to the increase homogeneity of the matrix surface and resultant analyte spots. As expected, the graphite matrices were shown to specifically outperform the organic matrices in negative ion mode. PMID- 29334805 TI - Delivery of radix ophiopogonis polysaccharide via sucrose acetateisobutyrate based in situ forming systems alone or combined with itsmono-PEGylation. AB - This work aimed to achieve long-lasting delivery of radix ophiopogonis polysaccharide (ROP) by sucrose acetate isobutyrate (SAIB)-based in situ forming systems (ISFSs) alone or combined with mono-PEGylation of ROP. When the '90%SAIB/10% solvent' system was used, the mean residence time (MRT) of ROP was prolonged by 4.3 5 ~ 7.00 times and the initial release rate was reduced significantly. However, this system was only suitable for days-long sustained release of ROP in short-term therapy. As to the 'SAIB/additives/solvent' system containing mono-PEGylated ROP, the results indicated that SAIB/poly(d,l-lactide co-glycolide) (PLGA)/N-methyl-2-pyrrolidone (NMP) was superior to SAIB/polylactic acid (PLA)/NMP and SAIB/PLA/ethanol in controlled release. Moreover, weeks- to months-long (16-60 d) smooth release of ROP could be achieved by varying the concentration (10-30%) and molecular weight (MW) of PLGA (10-50 kDa) or by employing a moderate MW of PEGylated ROP (~20 or ~30 kDa). With further increasing the conjugate MW to ~40 kDa, the contribution of drug elimination to its plasma retention seemed to surpass that of the SAIB-based system, resulting in that the system no longer had an obvious influence on the in vivo behavior of the conjugate. Besides, the results of host response confirmed that with less solvent being used, the SAIB-based systems showed a higher biocompatibility than the PLGA-based systems, suggesting that they could be freely chosen in the prevention and/or cure of chronic diseases. PMID- 29334808 TI - Identification of a novel site of interaction between ataxin-3 and the amyloid aggregation inhibitor polyglutamine binding peptide 1. AB - Amyloid diseases represent a growing social and economic burden in the developed world. Understanding the assembly pathway and the inhibition of amyloid formation is key to developing therapies to treat these diseases. The neurodegenerative condition Machado-Joseph disease is characterised by the self-aggregation of the protein ataxin-3. Ataxin-3 consists of a globular N-terminal Josephin domain, which can aggregate into curvilinear protofibrils, and an unstructured, dynamically disordered C-terminal domain containing three ubiquitin interacting motifs separated by a polyglutamine stretch. Upon expansion of the polyglutamine region above 50 residues, ataxin-3 undergoes a second stage of aggregation in which long, straight amyloid fibrils form. A peptide inhibitor of polyglutamine aggregation, known as polyQ binding peptide 1, has been shown previously to prevent the maturation of ataxin-3 fibrils. However, the mechanism of this inhibition remains unclear. Using nanoelectrospray ionisation-mass spectrometry, we demonstrate that polyQ binding peptide 1 binds to monomeric ataxin-3. By investigating the ability of polyQ binding peptide 1 to bind to truncated ataxin 3 constructs lacking one or more domains, we localise the site of this interaction to a 39-residue sequence immediately C-terminal to the Josephin domain. The results suggest a new mechanism for the inhibition of polyglutamine aggregation by polyQ binding peptide 1 in which binding to a region outside of the polyglutamine tract can prevent fibril formation, highlighting the importance of polyglutamine flanking regions in controlling aggregation and disease. PMID- 29334809 TI - Accidental pharmacological poisonings in young children: population-based study in three settings. AB - INTRODUCTION: Pharmacological poisonings in young children are avoidable. Previous studies report calls to poisons centres, presentations to emergency departments (ED) or hospital admissions. There are limited data assessing concurrent management of poisonings across all three settings. We aimed to describe accidental pharmacological poisonings in young children across our Poisons Information Centre (PIC), EDs and hospitals. METHODS: A population-based study in New South Wales, Australia, of PIC calls, ED presentations and hospital admissions for accidental pharmacological poisoning in children aged <5 years, 2007-2013. We examined trends, medicines responsible and subsequent management. Medicines were coded using ICD10-AM diagnosis codes (T36-50). RESULTS: Over 2007 2013, pharmacological poisonings accounted for 67,816 PIC calls, 7739 ED presentations and 2082 admissions. Rates (per 10,000 children) of PIC calls declined from 220 to 178; ED presentations were stable (~22-24), with a decrease in emergency cases offset by an increase in semi- or non-urgent presentations; hospital admissions declined (8-5). Most PIC calls related to "non-opioid analgesics" (25%), and "topical agents" (18%). Nearly every day, one child aged <5 years was admitted to hospital for poisoning. "Benzodiazepines", "other and unspecified antidepressants", "uncategorised antihypertensives", and "4 aminophenol derivatives" accounted for over one-third of all admissions. Most PIC calls (90%) were advised to stay home, 6% referred to hospital. One-quarter of ED presentations resulted in admission. CONCLUSIONS: Poisonings reported to PIC and hospitals declined, however, non-urgent ED presentations increased. Strategies to reduce therapeutic errors and access to medicines, and education campaigns to improve Poisons Centre call rates to prevent unnecessary ED presentations are needed. PMID- 29334810 TI - Monitoring of Metabolic Adverse Effects Associated With Atypical Antipsychotics Use in an Outpatient Psychiatric Clinic. AB - BACKGROUND: Atypical antipsychotics are associated with metabolic complications that contribute to a higher risk of cardiovascular disease. Current evidence reveal suboptimal adherence to the complex and variable official recommendations on metabolic monitoring in the corresponding patient population. A study evaluating metabolic monitoring at guideline-recommended intervals may help identify areas for intervention. OBJECTIVE: Describe the frequency of monitoring metabolic adverse effects in patients receiving atypical antipsychotics in an outpatient psychiatric clinic with respect to the specific guideline-recommended intervals. METHODS: A retrospective chart review was conducted in the outpatient psychiatric clinic. The primary outcome measure was the percentage of patients monitored for metabolic parameters at the current guideline-recommended intervals. The secondary end points were the percentage of patients with documented primary care physician, untreated metabolic comorbidities, and treated metabolic comorbidities by disease state. RESULTS: The most assessed parameters were family history (98%), blood pressure (81%), and body mass index/body weight (83%) at the baseline interval. The least assessed parameters were lipids (14%) at the 12-week interval and waist circumference (0%) at any interval. CONCLUSION: Interventions are needed to encourage higher compliance with current recommendations. The complexity of the recommendations is the most likely reason for the suboptimal compliance. PMID- 29334811 TI - The experiences of physical rehabilitation in individuals with spinal cord injuries: a qualitative thematic synthesis. AB - PURPOSE: The purpose of this thematic synthesis review was to identify and synthesise published qualitative research on the perspectives of individuals with spinal cord injuries with respect to physical rehabilitation interventions. MATERIALS AND METHODS: The peer-reviewed literature was searched across seven databases and identified abstracts were independently screened by two reviewers. A thematic synthesis methodology was used to code and synthesise the results from the included studies. RESULTS: In total, 7233 abstracts were identified; 31 articles were selected for inclusion, representing 26 physical rehabilitation interventions. The methodological quality of studies was moderate (Standards for Reporting Qualitative Research mean +/- standard deviation = 14.39 +/- 3.61). The four main themes developed were: (1) Benefits of physical rehabilitation, (2) Challenges of physical rehabilitation, (3) Need for support, and (4) Issue of control. CONCLUSIONS: This qualitative thematic synthesis provides key insights into the experiences of individuals with spinal cord injuries who received physical rehabilitation. Recommendations for practice, based on the findings, include creating a diverse, encouraging, and educational physical rehabilitation experience with supportive staff who focus on communication and person-centred care. Implications for Rehabilitation Physical rehabilitation provides psychological as well as physical benefits to people with spinal cord injuries, including motivation, hope, improved self-confidence, and acceptance. Challenges identified during physical rehabilitation for people with spinal cord injuries, such as comparisons, negative emotions, recovery expectations, and slow progress, should be addressed by healthcare professionals to ensure person-centred care. People with spinal cord injuries identified a need for support from health care professionals, family, and friends, as well other people with spinal cord injuries. There is an issue of control in physical rehabilitation for people with spinal cord injuries, which can result in a fight with oneself or with healthcare professionals to regain the control that has been lost. PMID- 29334812 TI - Anti-biofilm effect of a butenolide/polymer coating and metatranscriptomic analyses. AB - Butenolide is an environmentally friendly antifouling natural product, but its efficiency and mechanism in preventing biofilm formation have not been examined. Furthermore, controlling the release of butenolide from paints into seawater is technically challenging. A coating was developed by mixing butenolide with a biodegradable polymer, poly (epsilon-caprolactone)-based polyurethane, and a one month in situ anti-biofilm test was conducted in a subtidal area. The constant release of butenolide from the surface suggested that its release was well controlled. Direct observation and confocal microscope investigation indicated that the coating was effective against both biofilm formation and attachment of large fouling organisms. Metatranscriptomic analysis of biofilm samples implied that the coating selectively inhibited the adhesion of microbes from a variety of phyla and targeted particular functional pathways including energy metabolism, drug transport and toxin release. These integrated analyses demonstrated the potential application of this butenolide/polymer coating as an anti-biofilm material. PMID- 29334813 TI - Reduction of bacterial adhesion on titanium-doped diamond-like carbon coatings. AB - A range of titanium doped diamond-like carbon (Ti-DLC) coatings with different Ti contents were prepared on stainless steel substrates using a plasma-enhanced chemical vapour deposition technique. It was found that both the electron donor surface energy and the surface roughness of the Ti-DLC coatings increased with increasing Ti contents in the coatings. Bacterial adhesion to the coatings was evaluated against Escherichia coli WT F1693 and Pseudomonas aeruginosa ATCC 33347. The experimental data showed that bacterial adhesion decreased with the increases of the Ti content, the electron donor surface energy and surface roughness of the coatings, while the bacterial removal percentage increased with the increases of these parameters. The Ti-DLC coatings reduced bacterial attachment by up to 75% and increased bacterial detachment from 15 to 45%, compared with stainless steel control. PMID- 29334815 TI - Impact of medication adherence on risk of ischemic stroke, major bleeding and deep vein thrombosis in atrial fibrillation patients using novel oral anticoagulants. AB - OBJECTIVES: Our study examined the impact of adherence to novel oral anticoagulants [NOACs - dabigatran and rivaroxaban] on ischemic-stroke (IS), major-bleeding (MB), deep-vein-thrombosis and pulmonary-embolism (DVTPE) risk in a large, nationwide, propensity-matched sample. METHODS: A retrospective cohort study utilized data from a US commercial managed-care database (2010-2012). Adult patients with >=1 diagnosis of atrial fibrillation/flutter (ICD-9 427.31/32), >1 prescription of NOACs and CHA2DS2-VASc score >=1 were included. Patients were categorized as adherent versus nonadherent (using proportion of days covered [PDC >=80%]) based on their NOAC use up to 6 months and those continued its use up to 12 months. The patients were matched using propensity score (based on inverse probability treatment weighting) and the risk of IS, MB, DVTPE outcomes was evaluated for the matched cohorts' post-adherence (exposure) assessment using multivariable Cox regression. RESULTS: A total of 3,629 and 1,946 patients with at least 6 and 12 months of NOAC use were included. Based on a PDC threshold of >=80%, adherence rates at 6 and 12 month usage were 77% and 76%, respectively. Patients with lowest adherence were from the South, had low stroke risk and EPO/HMO insurance. Using Cox models with matched cohorts, nonadherence within the first 6 months' use was significantly associated with higher risk of IS and DVTPE (IS: hazard ratio [HR] = 1.82, p = .002; DVTPE: HR = 2.12, p = .010) and the risk increased with nonadherence for the prolonged period of 12 months' use (IS: HR = 2.08, p = .022; DVTPE: HR = 5.39, p = .003). The risk of MB was not different (p > .05) between adherent and nonadherent groups for both 6 month and 12 month cohorts. CONCLUSION: Adherence to NOACs for both 6 months and prolonged use (up to 12 months) was associated with a reduction in IS and DVTPE risk, but did not substantially increase risk of MB. Further studies on newer, individual NOACs and older populations are warranted. PMID- 29334814 TI - Dual-ligand modified liposomes provide effective local targeted delivery of lung cancer drug by antibody and tumor lineage-homing cell-penetrating peptide. AB - The abilities of a drug delivery system to target and penetrate tumor masses are key factors in determining the system's chemotherapeutic efficacy. Here, we explored the utility of an anti-carbonic anhydrase IX (anti-CA IX) antibody and CPP33 dual-ligand modified triptolide-loaded liposomes (dl-TPL-lip) to simultaneously enhance the tumor-specific targeting and increase tumor cell penetration of TPL. In vitro, the dl-TPL-lip increased the cytotoxicity of TPL in CA IX-positive lung cancer cells, which showed tunable size (137.6 +/- 0.8 nm), high-encapsulation efficiency (86.3 +/- 2.6%) and sustained release. Dl-TPL-lip significantly improved the ability of liposomes to penetrate 3 D tumor spheroids and exhibited a superior inhibiting effect. Furthermore, pharmacokinetic studies in rats that received TPL liposomal formulations by endotracheal administration showed a reduced concentration of TPL (17.3%-30.6% compared to free TPL) in systemic circulation. After pulmonary administration in orthotopic lung tumor bearing mice, dl-TPL-lip significantly enhanced TPL anti-cancer efficacy without apparent systemic toxicity. This dual-ligand modified liposomal vehicle presents a potential system for localized and targeted delivery of anti-cancer drugs to improve their efficacy. PMID- 29334816 TI - Anti-colchicine Fab fragments prevent lethal colchicine toxicity in a porcine model: a pharmacokinetic and clinical study. AB - BACKGROUND: Colchicine poisoning is commonly lethal. Colchicine-specific Fab fragments increase rat urinary colchicine clearance and have been associated with a good outcome in one patient. We aimed to develop a porcine model of colchicine toxicity to study the pharmacokinetics and efficacy of ovine Fab. METHODS: A Gottingen minipig critical care model was established and serial blood samples taken for colchicine and Fab pharmacokinetics, clinical chemistry, and haematology. Animals were euthanised when the mean arterial pressure fell below 45 mmHg without response to vasopressor, or at study completion. RESULTS: Initial studies indicated that oral dosing produced variable pharmacokinetics and time-to euthanasia. By contrast, intravenous infusion of 0.25 mg/kg colchicine over 1 h produced reproducible pharmacokinetics (AUC0-20 343 [SD = 21] ug/L/h), acute multi-organ injury, and cardiotoxicity requiring euthanasia a mean of 22.5 (SD = 3.2) h after dosing. A full-neutralising equimolar Fab dose given 6 h after the infusion (50% first hour, 50% next 6 h [to reduce renal-loss of unbound Fab]) produced a 7.35-fold increase in plasma colchicine (AUC0-20 2,522 [SD = 14] ug/L/h), and removed all free plasma colchicine, but did not prevent toxicity (euthanasia at 29.1 [SD = 3.4] h). Earlier administration over 1 h of the full neutralising dose, 1 or 3 h after the colchicine, produced a 12.9-fold (AUC0-20 4,433 [SD = 607] ug/L/h) and 6.0-fold (AUC0-20 2,047 [SD = 51] ug/L/h) increase in plasma colchicine, respectively, absence of free plasma colchicine until 20 h, and survival to study end without marked cardiotoxicity. CONCLUSIONS: Colchicine specific Fab given early, in equimolar dose, bound colchicine, eliciting its movement into the blood, and preventing severe toxicity. Clinical studies are now needed to determine how soon this antidote must be given to work in human poisoning. PMID- 29334817 TI - QuantiFERON-plus does not discriminate between active and latent tuberculosis. PMID- 29334818 TI - Relationship between nurses' moral sensitivity and the quality of care. AB - BACKGROUND: To provide care with high quality, nurses face a number of moral issues requiring them to have moral abilities in professional performance. Moral sensitivity is the first step in moral performance. However, its relation to the quality of care patients receive is controversial. RESEARCH OBJECTIVE: This study aims to determine the relationship between the moral sensitivity of nurses and the quality of care received by patients in the medical wards. RESEARCH DESIGN: A descriptive correlational study using validated tools, including Moral Sensitivity Questionnaire and the Quality Patient Quality Scale. Participants and research context: In total, 198 nurses and 198 patients in 17 medical wards of hospitals affiliated with Tabriz University of Medical Sciences, Iran. Ethical considerations: The study was reviewed and approved by the Ethics Committee of Tabriz University of Medical Sciences. FINDINGS: The mean values of nurses' moral sensitivity and nurses' quality care were 136.47 +/- 13.30 and 196.36 +/- 44.10, respectively. There was no significant relationship between the patient care quality and nurses' moral sensitivity ( r = -.14, p = .5). However, there was a significant inverse relationship between the dimension of "Experiencing moral conflicts" and the overall score of quality care ( r = -.50, p = .04), the dimensions of "psychosocial ( r = -.50, p = .04)" and "physical ( r = -.50, p = .03)." CONCLUSION: Considering the significant inverse relationship between the score of patient quality care and the dimension of moral conflict experience, it seems when nurses make moral decisions, they experience a conflict between personal and professional values in their careers and thus experience moral tension. If this tension is not resolved properly, it can provide a way for them to distance themselves from patients, thereby making nurses indifferent to moral care. PMID- 29334819 TI - Management of Hodgkin lymphoma in the era of brentuximab vedotin: real-world data from five European countries. AB - We examined real-world data on management of relapsed/refractory Hodgkin lymphoma (R/R HL) in five European countries and the consistency of these data with guideline recommendations. Retrospective clinical and epidemiologic data for 509 patients with R/R HL treated between January 2014 and March 2015 were collected at centers in France, Germany, Italy, Spain, and the United Kingdom. Mean age was 46.3 years; 73.3% were receiving second-line therapy for a first relapse during the reporting period. Most patients received ABVD as front-line chemotherapy, except in Germany where escalated BEACOPP was used more often. The proportion of patients receiving stem cell transplantation (SCT) was 44%; 85% of transplants occurred at first relapse. Brentuximab vedotin (BV) was usually administered after autologous SCT, and was initiated for 65% of patients following SCT failure. Our findings suggest that R/R HL management across these countries is broadly consistent with guideline recommendations and that BV is well-integrated into treatment pathways. PMID- 29334820 TI - EMT does not work regular shifts. PMID- 29334821 TI - Development and validation of a facial expression database based on the dimensional and categorical model of emotions. AB - The present study describes the development and validation of a facial expression database comprising five different horizontal face angles in dynamic and static presentations. The database includes twelve expression types portrayed by eight Japanese models. This database was inspired by the dimensional and categorical model of emotions: surprise, fear, sadness, anger with open mouth, anger with closed mouth, disgust with open mouth, disgust with closed mouth, excitement, happiness, relaxation, sleepiness, and neutral (static only). The expressions were validated using emotion classification and Affect Grid rating tasks [Russell, Weiss, & Mendelsohn, 1989. Affect Grid: A single-item scale of pleasure and arousal. Journal of Personality and Social Psychology, 57(3), 493-502]. The results indicate that most of the expressions were recognised as the intended emotions and could systematically represent affective valence and arousal. Furthermore, face angle and facial motion information influenced emotion classification and valence and arousal ratings. Our database will be available online at the following URL. https://www.dh.aist.go.jp/database/face2017/ . PMID- 29334822 TI - Vibsanol A induces differentiation of acute myeloid leukemia cells via activation of the PKC signaling pathway and induction of ROS. AB - Identifying novel differentiating agents to promote leukemia-cell differentiation is a pressing need. Here, we demonstrated that vibsanol A, a vibsane-type diterpenoid, inhibited the growth of acute myeloid leukemia (AML) cells via induction of cell differentiation, which was characterized by G1 cell cycle arrest. The differentiation-inducing effects of vibsanol A were dependent upon protein kinase C (PKC) activation, and subsequent activation of the extracellular signal-regulated kinase (ERK) pathway. Furthermore, vibsanol A treatment increased reactive oxygen species (ROS) levels, and the ROS scavenger NAC reversed the vibsanol A-induced cell differentiation, indicating an important role for ROS in the action of vibsanol A. Finally, vibsanol A exhibited a differentiation-enhancing effect when used in combination with all-trans retinoic acid in AML cells. Overall results suggested that vibsanol A induces AML cell differentiation via activation of the PKC/ERK signaling and induction of ROS. Vibsanol A may prove to be an effective differentiating agent against AML. PMID- 29334823 TI - A New Genus of Tapeworm (Cestoda: Onchoproteocephalidea) from Sawfish (Elasmobranchii: Pristidae). AB - Collections from the dwarf sawfish, Pristis clavata, near Darwin, Australia, in 1997 led to the discovery of the new onchoproteocephalidean genus Matticestus n. gen.-a taxon that has been referred to in molecular phylogenetic analyses in which it has been included as "New genus 8." Its type species, Matticestus anneae n. gen., n. sp., and a second species, Matticestus kathleenae n. sp., are described. Placement of this taxon in the Onchoproteocephalidea is supported morphologically in that both species bear a scolex with 4 bothridia each with a pair of bi-pronged hooks and spinitriches that extend throughout the length of the body. Sequence data for the D1-D3 region of the 28S rDNA gene also place the genus solidly among the other elasmobranch-hosted members of the order. The new genus differs from the other elasmobranch-hosted genera in the order in that its members possess a combination of biloculated bothridia with lateral lappets on the posterior margin of the anterior loculus and a pair of bi-pronged hooks with a distinctive configuration of tubercles and internal channels. Its members are also extremely small. In summary, Matticestus n. gen. is an unusually tiny, "spiny," genus of cestode that seems to exclusively parasitize sawfish of the genus Pristis. PMID- 29334824 TI - #MeToo - a concern for general practice? PMID- 29334825 TI - The Influence of Traumatic Axonal Injury in Thalamus and Brainstem on Level of Consciousness at Scene or Admission: A Clinical Magnetic Resonance Imaging Study. AB - The aim of this study was to investigate how traumatic axonal injury (TAI) lesions in the thalamus, basal ganglia, and brainstem on clinical brain magnetic resonance imaging (MRI) are associated with level of consciousness in the acute phase in patients with moderate to severe traumatic brain injury (TBI). There were 158 patients with moderate to severe TBI (7-70 years) with early 1.5T MRI (median 7 days, range 0-35) without mass lesion included prospectively. Glasgow Coma Scale (GCS) scores were registered before intubation or at admission. The TAI lesions were identified in T2*gradient echo, fluid attenuated inversion recovery, and diffusion weighted imaging scans. In addition to registering TAI lesions in hemispheric white matter and the corpus callosum, TAI lesions in the thalamus, basal ganglia, and brainstem were classified as uni- or bilateral. Twenty percent of patients had TAI lesions in the thalamus (7% bilateral), 18% in basal ganglia (2% bilateral), and 29% in the brainstem (9% bilateral). One of 26 bilateral lesions in the thalamus or brainstem was found on computed tomography. The GCS scores were lower in patients with bilateral lesions in the thalamus (median four) and brainstem (median five) than in those with corresponding unilateral lesions (median six and eight, p = 0.002 and 0.022). The TAI locations most associated with low GCS scores in univariable ordinal regression analyses were bilateral TAI lesions in the thalamus (odds ratio [OR] 35.8; confidence interval [CI: 10.5-121.8], p < 0.001), followed by bilateral lesions in basal ganglia (OR 13.1 [CI: 2.0-88.2], p = 0.008) and bilateral lesions in the brainstem (OR 11.4 [CI: 4.0-32.2], p < 0.001). This Trondheim TBI study showed that patients with bilateral TAI lesions in the thalamus, basal ganglia, or brainstem had particularly low consciousness at admission. We suggest these bilateral lesions should be evaluated further as possible biomarkers in a new TAI MRI classification as a worst grade, because they could explain low consciousness in patients without mass lesions. PMID- 29334827 TI - Left Ventricular Pseudoaneurysms in Children-A Case Series. AB - Left ventricular pseudoaneurysms are very rare in children. In children, left ventricular pseudoaneurysms can occur following infection, trauma, ischemia, or cardiac surgery. The authors report a series of three cases treated at our hospital with two of the cases having a history of extrapulmonary tuberculosis and one patient with a history of varicella zoster infection. PMID- 29334826 TI - Patient safety culture in out-of-hours primary care services in the Netherlands: a cross-sectional survey. AB - OBJECTIVE: To examine patient safety culture in Dutch out-of-hours primary care using the safety attitudes questionnaire (SAQ) which includes five factors: teamwork climate, safety climate, job satisfaction, perceptions of management and communication openness. DESIGN: Cross-sectional observational study using an anonymous web-survey. Setting Sixteen out-of-hours general practitioner (GP) cooperatives and two call centers in the Netherlands. Subjects Primary healthcare providers in out-of-hours services. Main outcome measures Mean scores on patient safety culture factors; association between patient safety culture and profession, gender, age, and working experience. RESULTS: Overall response rate was 43%. A total of 784 respondents were included; mainly GPs (N = 470) and triage nurses (N = 189). The healthcare providers were most positive about teamwork climate and job satisfaction, and less about communication openness and safety climate. The largest variation between clinics was found on safety climate; the lowest on teamwork climate. Triage nurses scored significantly higher than GPs on each of the five patient safety factors. Older healthcare providers scored significantly higher than younger on safety climate and perceptions of management. More working experience was positively related to higher teamwork climate and communication openness. Gender was not associated with any of the patient safety factors. CONCLUSIONS: Our study showed that healthcare providers perceive patient safety culture in Dutch GP cooperatives positively, but there are differences related to the respondents' profession, age and working experience. Recommendations for future studies are to examine reasons for these differences, to examine the effects of interventions to improve safety culture and to make international comparisons of safety culture. Key Points Creating a positive patient safety culture is assumed to be a prerequisite for quality and safety. We found that: * healthcare providers in Dutch GP cooperatives perceive patient safety culture positively; * triage nurses scored higher than GPs, and older and more experienced healthcare professionals scored higher than younger and less experienced professionals - on several patient safety culture factors; and * within the GP cooperatives, safety climate and openness of communication had the largest potential for improvement. PMID- 29334828 TI - An Unusual Combination of Double Inlet Left Ventricle With Discordant Ventriculoarterial Connections and Bilateral Arterial Ducts. AB - The presence of bilaterally persistent arterial ducts is an uncommon abnormality. Here, we describe the anatomy and successful management of an unusual patient with bilateral ducts in the setting of double inlet left ventricle, discordant ventriculoarterial connections, aortic atresia, and a severely hypoplastic and serpentine aortic arch. PMID- 29334829 TI - Rare Combination of Pathologies Causing Mitral Stenosis and Mitral Regurgitation: A Case Report. AB - A supramitral ring is a rare cause of mitral stenosis, while an isolated mitral valve cleft is a rare cause of congenital mitral regurgitation. Fortunately, both the lesions are known to have good outcomes after surgical correction. Although each is known to be associated with a variety of other structural heart defects, their coexistence has not been reported previously. We report a case of a three- and half-year-old boy detected to have a rare combination of supramitral ring producing severe mitral stenosis with a coexisting cleft in the anterior leaflet of mitral valve causing severe mitral regurgitation. The patient underwent successful surgical repair with resolution of both mitral stenosis and regurgitation. PMID- 29334830 TI - Cardiopulmonary Bypass for a Patient With Congenital Hyperinsulinemia. AB - Congenital hyperinsulinism is a clinical syndrome of pancreatic beta-cell dysfunction characterized by failure to suppress insulin secretion in the presence of hypoglycemia. Here, we describe the concerns, the techniques used to ameliorate these potential problems, and the outcomes for a child with this condition undergoing cardiopulmonary bypass for correction of an atrial septal defect. PMID- 29334831 TI - Does Stroke Rehabilitation Really Matter? Part B: An Algorithm for Prescribing an Effective Intensity of Rehabilitation. AB - BACKGROUND: The proportional recovery rule suggests that current rehabilitation practices may have limited ability to influence stroke recovery. However, the appropriate intensity of rehabilitation needed to achieve recovery remains unknown. Similarities between rodent and human recovery biomarkers may allow determination of rehabilitation thresholds necessary to activate endogenous biological recovery processes. OBJECTIVE: We determined the relative influence that clinically relevant biomarkers of stroke recovery exert on functional outcome. These biomarkers were then used to generate an algorithm that prescribes individualized intensities of rehabilitation necessary for recovery of function. METHODS: A retrospective cohort of 593 male Sprague-Dawley rats was used to identify biomarkers that best predicted poststroke change in pellet retrieval in the Montoya staircase-reaching task using multiple linear regression. Prospective manipulation of these factors using endothelin-1-induced stroke (n = 49) was used to validate the model. RESULTS: Rehabilitation was necessary to reliably predict recovery across the continuum of stroke severity. As infarct volume and initial impairment increased, more intensive rehabilitation was required to engage recovery. In this model, we prescribed the specific dose of daily rehabilitation required for rats to achieve significant motor recovery using the biomarkers of initial poststroke impairment and infarct volume. CONCLUSIONS: Our algorithm demonstrates an individualized approach to stroke rehabilitation, wherein imaging and functional performance measures can be used to develop an optimized rehabilitation paradigm for rats, particularly those with severe impairments. Exploring this approach in human patients could lead to an increase in the proportion of individuals experiencing recovery of lost motor function poststroke. PMID- 29334832 TI - Novel Mortality Markers for Critically Ill Patients. AB - AIM: Inflammatory markers, such as the neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR), derived from a complete blood count have recently attracted attention as potential markers of morbidity and mortality in various diseases. The aim of the present study was to assess the usefulness of the NLR and PLR as markers of hospital stay and mortality of patients in intensive care units (ICUs). METHODS: Patients treated in the ICU of our institution between October 2016 and August 2017 were enrolled in the study. After obtaining approval from the institutional committee, patient data were sourced from the institution's computerized database and retrospectively analyzed. The patients were assigned to 2 groups according to the outcomes: survivors and deceased. RESULTS: The NLR of survivors and deceased patients was 2.06 (1.18-21.68) and 10.42 (2.85-48.2), respectively. The NLR was significantly elevated in deceased patients as compared with that of survivors ( P < .001). Similarly, the median PLR of patients in the deceased group (268.9 [150-3000]) was significantly higher than that of patients in the survivor group (55.7 [11.8 152.5]). The difference in the PLR between groups was significant ( P < .001). CONCLUSION: Both the NLR and PLR, as well as C-reactive protein, predicted mortality in this critically ill population. The PLR and NLR are easy-to-measure, inexpensive markers. Physicians should be aware of elevations in PLR and NLR in patient care in ICUs. PMID- 29334833 TI - Silver nanoparticles induce neurotoxicity in a human embryonic stem cell-derived neuron and astrocyte network. AB - Silver nanoparticles (AgNPs) are among the most extensively used nanoparticles and are found in a variety of products. This ubiquity leads to inevitable exposure to these particles in everyday life. However, the effects of AgNPs on neuron and astrocyte networks are still largely unknown. In this study, we used neurons and astrocytes derived from human embryonic stem cells as a cellular model to study the neurotoxicity that is induced by citrate-coated AgNPs (AgSCs). Immunostaining with the astrocyte and neuron markers, glial fibrillary acidic protein and microtubule-associated protein-2 (MAP2), respectively, showed that exposure to AgSCs at the concentration of 0.1 ug/mL increased the astrocyte/neuron ratio. In contrast, a higher concentration of AgSCs (5.0 ug/ml) significantly changed the morphology of astrocytes. These results suggest that astrocytes are sensitive to AgSC exposure and that low concentrations of AgSCs promote astrogenesis. Furthermore, our results showed that AgSCs reduced neurite outgrowth, decreased the expression of postsynaptic density protein 95 and synaptophysin, and induced neurodegeneration in a concentration-dependent manner. Our findings additionally suggest that the expression and phosphorylation status of MAP2 isoforms, as modulated by the activation of the Akt/glycogen synthase kinase-3/caspase-3 signaling pathway, may play an important role in AgSC-mediated neurotoxicity. We also found that AgNO3 exposure only slightly reduced neurite outgrowth and had little effect on MAP2 expression, suggesting that AgSCs and AgNO3 have different neuronal toxicity mechanisms. In addition, most of these effects were reduced when the cell culture was co-treated with AgSCs and the antioxidant ascorbic acid, which implies that oxidative stress is the major cause of AgSC-mediated astrocytic/neuronal toxicity and that antioxidants may have a neuroprotective effect. PMID- 29334835 TI - National approaches to promote sports and physical activity in adults with disabilities: examples from the Netherlands and Canada. AB - PURPOSE: This study described how the Dutch and Canadian governments promote high performance sports, recreational sports, and physical activity (PA) among adults with disabilities on a national level. METHODS: An internet-based study was conducted to identify and select relevant documents and websites containing information about the national approach to promote disability sports and physical activities in the Netherlands and Canada. RESULTS: Both governments promote high performance sports in similar ways, but use different strategies to promote recreational sports and physical activities. The Dutch approach is characterized by using time-limited programs focusing on enhancement of sports infrastructure and inter-sector collaboration in which municipalities have key roles. The Canadian government promotes recreational sports in disabled populations by supporting programs via bilateral agreements with provinces and territories. Furthermore, the level of integration of disability sports into mainstream sports differs between countries. CONCLUSIONS: The findings of this study may inspire policy makers from different countries to learn from one another's policies in order to optimize national approaches to promote disability sports and PA on all levels. Implications for rehabilitation It is recommended for policy makers of national governments to develop and implement policy programs that promote sports and physical activities among people with disabilities because of its potential impact on functioning, participation, quality of life, and health. Insight into national approaches to promote sport and physical activities is relevant for rehabilitation practice to understand ongoing opportunities for people with disabilities to stay physically active after rehabilitation through participation in home and/or community-based sport and physical activities. It seems worthwhile to integrate activities to promote sport and physical activities in rehabilitation in such a way that it fits with the current governmental approach. It is recommended to set up international collaborations to develop and share knowledge about effective and sustainable national approaches to promote sports and physical activities among people with disabilities. PMID- 29334834 TI - Mild Jugular Compression Collar Ameliorated Changes in Brain Activation of Working Memory after One Soccer Season in Female High School Athletes. AB - Recent neuroimaging studies have suggested that repetitive subconcussive head impacts, even after only one sport season, may lead to pre- to post-season structural and functional alterations in male high school football athletes. However, data on female athletes are limited. In the current investigation, we aimed to (1) assess the longitudinal pre- to post-season changes in functional MRI (fMRI) of working memory and working memory performance, (2) quantify the association between the pre- to post-season change in fMRI of working memory and the exposure to head impact and working memory performance, and (3) assess whether wearing a neck collar designed to reduce intracranial slosh via mild compression of the jugular veins can ameliorate the changes in fMRI brain activation observed in the female high school athletes who did not wear collars after a full soccer season. A total of 48 female high school soccer athletes (age range: 14.00-17.97 years) were included in the study. These athletes were assigned to the non-collar group (n = 21) or to the collar group (n = 27). All athletes undewent MRI at both pre-season and post-season. In each session, a fMRI verbal N-Back task was used to engage working memory. A significant pre- to post season increase in fMRI blood oxygen level dependent (BOLD) signal was demonstrated when performing the N-back working memory task in the non-collar group but not in the collar group, despite the comparable exposure to head impacts during the season between the two groups. The collar group demonstrated significantly smaller pre- to post-season change in fMRI BOLD signal than the non collar group, suggesting a potential protective effect from the collar device. Significant correlations were also found between the pre- to post-season increase in fMRI brain activation and the decrease in task accuracy in the non-collar group, indicating an association between the compensatory mechanism in underlying neurophysiology and the alteration in the behavioral outcomes. PMID- 29334836 TI - SNF5 deficiency induces apoptosis resistance by repressing SATB1 expression in Sezary syndrome. AB - SNF5, is a core member of the SWI/SNF chromatin remodeling complex. It's deficiency leads to multiple types of aggressive cancer. Sezary syndrome, a leukemic variant of cutaneous T-cell lymphoma, is characterized by its resistance to apoptosis. Although the cause of apoptosis resistance is still poorly understood, recent evidence has revealed the importance of SATB1 in the apoptosis resistance of Sezary syndrome. In this study, we show that SNF5 is an upstream regulator of SATB1 in several conditions and that both are deficient in Sezary cells. Additionally, SNF5 not only controls the expression of SATB1, but also utilizes SATB1 to recruit itself to specific sites. Overexpression of SNF5 induces SATB1 expression and partially reverse apoptosis resistance phenotype in Sezary cells. These results suggest that both SNF5 and SATB1 may regulate apoptosis-related genes in Sezary syndrome. Thus, targeting SWI/SNF complex may represent a promising approach for Sezary syndrome therapy. PMID- 29334837 TI - More expertise for a better perspective: Task and strategy-driven adaptive neurofunctional reorganization for word production in high-performing older adults. AB - The suggestion that neurofunctional reorganization may contribute to preserved language abilities is still emerging in aging studies. Some of these abilities, such as verbal fluency (VF), are not unitary but instead rely on different strategic processes that are differentially changed with age. Younger (n = 13) and older adults (n = 13) carried out an overt self-paced semantic and orthographic VF tasks within mixed fMRI design. Our results suggest that patterns of brain activation sustaining equivalent performances could be underpinned by different strategies facing brain changes during healthy aging. These main findings suggest that temporally mediated semantic clustering and frontally mediated orthographic switching were driven by evolutive neurofunctional resources in high-performing older adults. These age-related activation changes can appear to be compatible with the idea that unique neural patterns expressing distinctive cognitive strategies are necessary to support older adults' performance on VF tasks. PMID- 29334838 TI - Monitoring of leukemia stem cells in chronic myeloid leukemia patients. PMID- 29334839 TI - Bax inhibitor-1 is required for resisting the Early Brain Injury induced by subarachnoid hemorrhage through regulating IRE1-JNK pathway. AB - Background and Purpose Bax inhibitor-1 (BI-1) has been identified as a suppressor of Bax-mediated cell apoptosis by regulation of endoplasmic reticulum stress induced cell death. However, the role of BI-1 in Early Brain Injury (EBI) after subarachnoid hemorrhage (SAH) remains unclear. In the present study, we aim to explore the neuroprotective functions of BI-1 in EBI after SAH by using models of SAH that induced endovascular perforation in rats. Method The neurological score, brain water content and blood-brain barrier (BBB) permeability were evaluated simultaneously as prognostic indicators. Western blot, RT-PCR and TUNEL staining were performed to study the role and mechanisms of BI-1 in EBI after SAH. Results We found that BI-1 knockdown increased histological injury and the percentages of TUNEL-positive neuron in hippocampal, promoted the expressions of endoplasmic reticulum (ER) stress proteins inositol-requiring enzyme 1alpha (IRE1alpha) and TNF receptor-associated factor 2 (TRAF2), and increased the activation levels of apoptosis signal-regulating kinase 1 (ASK1) and c-Jun N-terminal kinase (JNK) in the hippocampus of SAH rats compared with rats in SAH + vehicle group. Conclusion Our results indicate that BI-1 may participate in the regulation of EBI after SAH by regulating IRE1-JNK pathway. Thus, the results suggest that BI-1 may be a potential therapeutic target for SAH treatment. PMID- 29334840 TI - Transcallosal conduction in paroxysmal kinesigenic dyskinesia. AB - OBJECTIVES: Detecting whether a possible disequilibrium between the excitatory and inhibitory interhemispheric interactions in paroxysmal kinesigenic dyskinesia (PKD) exists. METHODS: This study assessed measures of motor threshold, motor evoked potential latency, the cortical silent period, the ipsilateral silent period and the transcallosal conduction time (TCT) in PKD patients. Data were compared between the clinically affected hemisphere (aH) and the fellow hemisphere (fH). RESULTS: The transcallosal conduction time from the aH to the fH was 11.8 ms (range = 2.3-20.7) and 13.6 ms (range = 2.8-67.7) from the fH to the aH. The difference in TCT in the affected side was significant (p = .019). CONCLUSION: The findings demonstrated that, although inhibitory interneurons act normally and symmetrically between the motor cortices and transcallosal inhibition was normal and symmetrical between both sides, the onset of transcallosal inhibition was asymmetrical. The affected hemisphere's inhibition toward the unaffected hemisphere is faster compared to the inhibition provided by the fellow hemisphere. These results are consistent with an inhibitory deficit in the level of interhemispheric interactions. SIGNIFICANCE: This study revealed a defect in inhibition of the motor axis could be responsible in the pathological mechanisms of kinesigenic dyskinesia. PMID- 29334841 TI - Tocilizumab in the treatment of myocardial infarction. AB - Tocilizumab (TCZ) is an important biologic response modifier that rheumatologists routinely employ in the treatment of several systemic autoimmune diseases. TCZ binds to interleukin (IL)-6 receptors, inhibits cellular activation, and mitigates inflammation by IL-6. In mid-2017, TCZ was approved by the US Food and Drug Administration for its first nonrheumatologic condition, the treatment of chimeric antigen receptor (CAR) T cell-induced severe or life-threatening cytokine release syndrome in patients 2 years of age or older. With this approval and with the increasing use of TCZ off-label for other non-rheumatologic conditions such as Castleman's Disease and its variant TAFRO syndrome, where else might TCZ be successfully utilized as treatment? Recently interesting data has been published regarding possible use of TCZ in the treatment of myocardial infarction. This review focuses on the role of IL-6 and its receptor in myocardial inflammation and association with adverse clinical outcomes. Discussed are one animal study and two human trials that have been published studying the effect of TCZ in patients with acute myocardial infarction. Finally, this review summarizes the current data and makes recommendations for future clinical trial development in what hopefully will be a promising application of TCZ for a serious nonrheumatologic condition. PMID- 29334843 TI - High genetic diversity and low-population differentiation in the Patagonian sprat (Sprattus fuegensis) based on mitochondrial DNA. AB - The Patagonian sprat, Sprattus fuegensis, is a small pelagic marine fish that inhabits the continental shelf along the coasts of Chilean Patagonian and Argentina, a distribution that was highly impacted during the Last Glacial Maximum (LGM). In order to identify how the LGM played a role on the current observed genetic diversity and population structure of S. fuegensis, we analyzed 1438 nucleotide positions from the control region of 335 individuals collected at 12 sites across its distribution. Genetic diversity and differentiation indices were calculated to identify population structure, and a Bayesian skyride plot (BSRP) reconstruction was carried out to infer the historic population dynamics. Extremely high genetic diversity was found at all locations analyzed, non population structure was found across its distribution, and the BSRP showed two increases in effective population size over time. Our outcomes suggest that the current genetic diversity, population structure and population expansion may have occurred during the medium and late Pleistocene. PMID- 29334842 TI - A comprehensive review of endoscopic ultrasound core biopsy needles. AB - INTRODUCTION: Endoscopic ultrasound (EUS)-guided tissue acquisition by-fine needle biopsy (EUS-FNB) developed over the last two decades as an attempt to overcome the limitations of fine needle aspiration (FNA). There are now three commercially available second-generation FNB needles with different tip designs. Areas covered: In this review the roles of EUS-FNA and FNB, the history and evolution of the EUS core biopsy needle are addressed followed by a presentation of currently available needles. Literature search was conducted using MEDLINE, Controlled Trials Register, US Patent Registry, Google Scholar, and Conference Abstracts. Expert commentary: While FNA remains the reference standard, it is limited by the inability to retain stroma and associated cellular architecture in biopsy samples. Histologic architecture is of paramount importance in providing a molecular diagnosis and for accurate tumor staging. FNB offers a superior diagnostic yield to FNA and initial experiences with the three commercially available second-generation FNB needles show highly promising results. PMID- 29334844 TI - The molecular signature of AML with increased ALDH activity suggests a stem cell origin. AB - Enrichment of leukemic blasts with a stem cell phenotype correlates with poor survival in acute myeloid leukemia (AML). In this context, measurement of the stem cell marker aldehyde-dehydrogenase (ALDH) activity can distinguish poor prognosis cases with increased fractions of ALDH-positive cells (ALDH-numerous AML) and favorable outcome cases with low percentages (ALDH-rare AML). It has been shown that ALDH-numerous AML favor leukemic engraftment in xenotransplantation assays which suggests increased leukemic stem cell (LSC) potential. To test if this reflects an immature cell of origin, comparative gene expression studies of CD34+ leukemic blasts were performed. This analysis revealed increased expression of LSC and HSC signatures in ALDH-numerous AML, whereas ALDH-rare AML were enriched for a progenitor signature. The enrichment of stemness-associated transcriptional programs suggests that ALDH-numerous AML derive from immature hematopoietic progenitors and offers an explanation for the poor prognosis and therapy resistance of this subgroup which is likely caused by inherited stem cell properties. PMID- 29334845 TI - Neutrophil-to-lymphocyte ratio and mural nodule height as predictive factors for malignant intraductal papillary mucinous neoplasms. AB - BACKGROUND: Accurate preoperative prediction for malignant IPMN is still challenging. The aim of this study was to investigate the validity of neutrophil to-lymphocyte ratio (NLR) and mural nodule height (MNH) for predicting malignant intraductal papillary mucinous neoplasm (IPMN). METHODS: The medical records of 60 patients who underwent pancreatectomy for IPMN were retrospectively reviewed. RESULTS: NLR tended to be higher in malignant IPMN (median: 2.23) than in benign IPMN (median: 2.04; p = .14). MNH was significantly greater in malignant IPMN (median: 16 mm) than in benign IPMN (median: 8 mm; p < .01). The optimal cutoff values for the NLR and MNH were 3.60 and 11 mm, respectively. The sensitivity and specificity of NLR >=3.60 for predicting malignant IPMN were 40% and 93%, and those of MNH >=11 mm were 73% and 77%, respectively. Univariate analysis revealed that NLR >=3.60 (p < .01) and MNH >=11 mm (p < .01) were significant predictive factors. On multivariate analysis, enhanced solid component was identified as an independent factor, but NLR >=3.60 and MNH >=11 mm were not. CONCLUSIONS: NLR and MNH are suboptimal tests in predicting malignant IPMN; however, they can be useful to assist in clinical decision-making. PMID- 29334846 TI - Scapular motion adaptations in junior overhead athletes: a three-dimensional kinematic analysis in tennis players and non-overhead athletes. AB - Adult overhead athletes without a history of shoulder injury show scapular adaptations. There is a lack of detailed assessment of scapular kinematics in junior overhead athletes. This study aims to investigate three-dimensional scapular kinematics in junior overhead athletes. We recruited a total of 20 junior tennis players and 20 healthy children without participation in any overhead sports in this study. Bilateral scapular kinematic data were recorded using an electromagnetic tracking device for scapular plane glenohumeral elevation. The data were further analysed at 30 degrees , 45 degrees , 60 degrees , 90 degrees and 120 degrees during glenohumeral elevation and lowering. Statistical comparisons of the data between groups (junior overhead athletes and non-overhead athletes) and sides (serve dominant and non-dominant shoulders of the overhead athletes) were analysed with the ANOVA. Comparisons showed that, in general, the scapula was more upwardly rotated and anteriorly tilted in overhead athletes when compared to non-overhead athletes, however there was no side-to side differences when serve dominant and non-dominant shoulders compared in junior overhead athletes. The serve dominant arm of junior overhead athletes had alternations in scapular kinematics when compared with the non-overhead athletes. These findings provide clinical evaluation implications and the need for clinicians to assess for potential adaptations in junior overhead athletes. PMID- 29334847 TI - Patient and family psychoeducation: Service development and implementation in a center in Iran. AB - BACKGROUND: Family and patient psychoeducation have demonstrated significant improvement in clinical and social outcomes for patients suffering from severe mental disorders and their families. However, these evidence-based practices are not widely implemented at service delivery level and into routine clinical practice, especially in less developed countries. AIM: The aim of this article is to report the processes of development and implementation of a psychoeducational service for patients with severe mental illnesses and their families in Iran. METHOD: The program was developed at Roozbeh Hospital in Tehran, Iran. A group of clinicians worked on the development phase of the program and drafting the manuals. Then, a series of workshops and supervision sessions were held to train group leaders for implementation of the group psychoeducation for patients and families. In the pilot phase, the services were delivered to two groups of patients and families, and then the manual was revised based on the feedback from group leaders and participants. RESULTS: The program consisted of eight 90-minute weekly patient group sessions and 6 weekly multiple family group sessions. Two manuals for patient education (schizophrenia and bipolar disorder) were developed. Several information sheets were developed and distributed during different sessions of family and patient psychoeducation related to the content of each session. Despite providing the hospital clinicians with the information regarding these new services, less than 10% of the admitted patients were referred by their clinicians. CONCLUSION: Feasibility and sustainability of the program are affected by a number of factors. Low referral rate of clinicians, limited resources of the hospital, issues related to stigma and logistic issues are barriers in implementation of these services. Administrators' and clinicians' understanding of the importance of patient and family psychoeducation seems to be crucial in sustainability of such programs in routine service delivery. PMID- 29334848 TI - The effect of social support, gratitude, resilience and satisfaction with life on depressive symptoms among police officers following Hurricane Katrina. AB - BACKGROUND: Police officers in the New Orleans geographic area faced a number of challenges following Hurricane Katrina. AIM: This cross-sectional study examined the effect of social support, gratitude, resilience and satisfaction with life on symptoms of depression. METHOD: A total of 86 male and 30 female police officers from Louisiana participated in this study. Ordinary least-square (OLS) regression mediation analysis was used to estimate direct and indirect effects between social support, gratitude, resilience, satisfaction with life and symptoms of depression. All models were adjusted for age, alcohol intake, military experience and an increase in the number of sick days since Hurricane Katrina. RESULTS: Mean depressive symptom scores were 9.6 +/- 9.1 for females and 10.9 +/- 9.6 for males. Mediation analyses indicates that social support and gratitude are directly associated with fewer symptoms of depression. Social support also mediated the relationships between gratitude and depression, gratitude and satisfaction with life, and satisfaction with life and depression. Similarly, resilience mediated the relationship between social support and fewer symptoms of depression. CONCLUSION: Social support, gratitude and resilience are associated with higher satisfaction with life and fewer symptoms of depression. Targeting and building these factors may improve an officer's ability to address symptoms of depression. PMID- 29334849 TI - How to implement an enhanced recovery programme after colorectal surgery? AB - INTRODUCTION: Although the concept of enhanced recovery after surgery was introduced more than 20 years ago, its implementation in daily practice still remains difficult. RESULTS: This article addresses bottlenecks and barriers to the development of enhanced recovery programme (ERP). Barriers to the implementation are multifactorial and are raised by the different actors of these programmes: surgeons, anaesthetists, nurses, patients. Solutions and steps that must be respected to succeed in introducing ERP in an hospital are proposed. CONCLUSIONS: Large-scale implementation of ERP continues to face mainly lack of trust and communication. Solutions exist and are based particularly on team work and interdisciplinary collaboration. PMID- 29334850 TI - An Immunopathological Evaluation of the Porcine Cholecyst Matrix as a Muscle Repair Graft in a Male Rat Abdominal Wall Defect Model. AB - With the increasing use of animal-based biomaterials for regenerative medical applications, the need for their safety assessment is paramount. A porcine cholecyst-derived scaffold (CDS), intended as a muscle repair graft, prepared by a nondetergent/enzymatic method was engrafted in a rat abdominal wall defect model. Host tissue-scaffold interface samples were collected 2, 8, and 16 weeks postimplantation and evaluated by histopathology, immunohistochemistry, and electron microscopy. The nature of the tissue reaction was compared with those induced by a jejunum-derived scaffold (JDS) prepared by the same method and a commercial-grade small intestinal submucosa (CSIS) scaffold. A study of the immunopathological response in major lymphoid tissues and immunophenotyping for M1 and M2 macrophages was performed at the host tissue-scaffold interface. Further, "irritancy scores" for CDS and JDS were determined using CSIS as the reference material. Both CDS and JDS appeared to be potential biomaterials for muscle grafts, but the former stimulated a skeletal muscle tissue remodeling response predominated by M2 macrophages. The data support the notion that biomaterials with similar biocompatibility, based on local tissue response on implantation, may cause differential immunogenicity. Additionally, CDS compared to JDS and CSIS was found to be less immunotoxic. PMID- 29334851 TI - What Are the Psychosocial Factors Associated With Migraine in the Child? Comorbid Psychiatric Disorders, Family Functioning, Parenting Style, or Mom's Psychiatric Symptoms? AB - OBJECTIVE: Psychiatric diagnoses, parenting style, family functioning among children and adolescents with migraine, and psychiatric symptoms of their mothers were examined. METHODS: The K-SADS and other measurements were used to assess psychiatric disorders in 50 children with migraine (aged 8-18) and matched 50 controls. RESULTS: At least one psychiatric disorder was diagnosed in 56% of the migraine group. The presence of any psychiatric disorder in children (odds ratio [OR] = 2.765, P = .027) and somatization symptoms in their mothers (OR = 2.061, P = .025) were increasing the risk of migraine diagnosis. The parenting style scale assessments revealed that parents in the migraine group grant their children less autonomy. CONCLUSION: Psychiatric comorbidity, especially depression and anxiety disorders, is more common in children with migraine. The frequency of eating disorder is also higher. Evaluating comorbidity, family functioning, and particularly affective responsiveness in migraine families may guide the clinician to a targeted treatment plan. PMID- 29334852 TI - Child Neurology: A Fragile Future. PMID- 29334853 TI - Therapeutic Plasma Exchange Use in Pediatric Neurologic Disorders at a Tertiary Care Center: A 10-Year Review. AB - Pediatric neurologic conditions requiring therapeutic plasma exchange are rare in children and literature is sparse. The study aims to determine the outcomes, safety, and feasibility of therapeutic plasma exchange treatment in pediatric neurologic disorders. This retrospective analysis looked at the outcomes and safety of therapeutic plasma exchange in children (n = 50) with neurologic conditions. Patient age ranged <1 to 19 years old with a mean of 10.35 years. Of the 50 children treated with plasmapheresis, 26 patients received inpatient rehabilitation. At discharge, functional status can be summarized as follows: 24 (48%) with mental status impairment, 10 (20%) with vision impairment, 19 (38%) with bladder incontinence, and 37 (74%) with motor impairment. Three-month follow up: 30% with mental status impairment, 10% with vision impairment, 18% with bladder incontinence, and 52% with motor impairment. Therapeutic plasma exchange is an effective and safe therapy for neurological conditions in the pediatric population. PMID- 29334854 TI - The Association Between Premorbid Conditions in School-Aged Children With Prolonged Concussion Recovery. AB - The association between preexisting anxiety, depression, and/or neurodevelopmental disorders and symptom duration among younger children who sustain concussions is not well known. The authors conducted a prospective cohort study of 569 patients presenting to a pediatric neurology clinic with the diagnosis of concussion. The authors measured associations between symptom duration and premorbid conditions, as well as gender, age, mechanism of injury, and other factors. Premorbid conditions were common in both age groups. On univariate modeling female gender, age >12 years, and premorbid conditions were associated with longer symptom duration. On multivariable modeling, females and patients <=12 years old with a history of headaches, migraines, or a history of psychiatric conditions took significantly longer to recover than those without such conditions. Premorbid conditions are associated with a prolonged recovery from concussion among those patients <=12 years old. PMID- 29334856 TI - Stroke After Minor Head Trauma in Infants and Young Children With Basal Ganglia Calcification: A Lenticulostriate Vasculopathy? AB - The authors retrospectively reviewed charts of the children with basal ganglia stroke who either had preceding minor head injury or showed basal ganglia calcification on computed tomography (CT) scan. Twenty children, 14 boys and 6 girls were identified. Eighteen were aged between 7 months to 17 months. Presentation was with hemiparesis in 17 and seizures in 3. Preceding minor head trauma was noted in 18. Family history was positive in 1 case. Bilateral basal ganglia calcification on CT scan was noted in 18. Brain magnetic resonance imaging done in 18 infants showed acute or chronic infarcts in basal ganglia. Results of other laboratory and radiological investigations were normal. Four infants were lost to follow-up, 9 achieved complete or nearly completely recovery, and 7 had persistent neurological deficits. Basal ganglia calcification likely represents mineralized lenticulostriate arteries, a marker of lenticulostriate vasculopathy. Abnormal lenticulostriate vessels are vulnerable to injury and thrombosis after minor head trauma resulting in stroke. PMID- 29334857 TI - Association of Neutrophil/Lymphocyte Ratio With Intravenous Immunoglobulin Treatment in Children With Guillain-Barre Syndrome. AB - Guillain-Barre syndrome (GBS) is an acute immune-mediated inflammatory polyneuropathy of the peripheral nervous system. The authors aimed to investigate whether the neutrophil/lymphocyte (N/L) and platelet/lymphocyte (P/L) ratios are the parameters that associated with the drug treatment or severity of GBS. Twenty seven children with GBS were retrospectively analyzed from the medical records of patients who attended to the Pediatric Neurology Department of the Gaziantep University Hospital. Biochemical and hematologic parameters were measured. Leukocytes, neutrophils counts and N/L ratio were significantly higher before the intravenous immunoglobulin treatment ( P < .001). However, there were no marked differences in platelet count and P/L ratio. In addition, marked correlation was observed between the N/L ratio after treatment and duration of weakness. The results of the study showed that N/L ratio is significantly higher in GBS patients, and reduces following with intravenous immunoglobulin treatment. PMID- 29334858 TI - Case study of occupational mercury exposure during decontamination of turnaround in refinery plant. AB - Decontamination during turnaround (TA) can lead to high exposure to toxic chemicals among workers. The decontamination process in refinery plants usually comprises two types, i.e. steam and chemical decontamination. No matter the method used, concentrations of toxic chemicals must be measured using the direct reading instrument at the end of each decontamination cycle, which maybe repeated several times until the readings are in acceptable level. To evaluate mercury exposure of decontamination workers during decontamination procedure in comprehensive turnaround of a refinery plant. Thirty personal and 16 area air samples were collected using passive dosimeters and absorbent tubes, respectively, during 8 days of the decontamination in comprehensive turnaround. All samples were analyzed using inductively coupled plasma mass spectrometry (ICP MS). Good practices and standard procedures for air sampling and analysis were performed. The TWA concentrations were calculated and compared between steam and chemical decontamination workers. All area samples were well below TLV (ND - 0.0016 mg/m3) while 5 of 14 samples collected at the steam team and 1 of 16 samples taken from the chemical team exceeded the TLV. The geometric mean (GSD) of TWA concentration of the steam team was 0.0057(10.4906) mg/m3, which is about twice as high as that of the chemical team, 0.0031(6.9422) mg/m3. The highest mercury concentration, 0.1037 mg/m3, was collected from a steam decontamination worker. According to the activities and observation, the steam team may have high exposure while reading the chemical concentrations at the end of the decontamination cycle. PMID- 29334859 TI - Bayesian analysis of semi-parametric Cox models with latent variables. AB - Respiratory cancer is one of the most commonly diagnosed cancers as well as the leading cause of cancer death. Numerous efforts have been devoted to reducing the death rate of respiratory cancer. In this article, we propose a semi-parametric Cox model with latent variables to assess the effects of observed and latent risk factors on survival time of respiratory cancer. The characteristics of latent risk factors are characterized via multiple observed indicators by a confirmatory factor analysis model. We develop a Bayesian estimation procedure to obtain the estimates of parameters. Simulation shows that the performance of the proposed methodology is satisfactory. The proposed method is applied to analyze the Surveillance, Epidemiology, and End Results Program data set. PMID- 29334860 TI - A mixed-effects, spatially varying coefficients model with application to multi resolution functional magnetic resonance imaging data. AB - Spatial resolution plays an important role in functional magnetic resonance imaging studies as the signal-to-noise ratio increases linearly with voxel volume. In scientific studies, where functional magnetic resonance imaging is widely used, the standard spatial resolution typically used is relatively low which ensures a relatively high signal-to-noise ratio. However, for pre-surgical functional magnetic resonance imaging analysis, where spatial accuracy is paramount, high-resolution functional magnetic resonance imaging may play an important role with its greater spatial resolution. High spatial resolution comes at the cost of a smaller signal-to-noise ratio. This begs the question as to whether we can leverage the higher signal-to-noise ratio of a standard functional magnetic resonance imaging study with the greater spatial accuracy of a high resolution functional magnetic resonance imaging study in a pre-operative patient. To answer this question, we propose to regress the statistic image from a high resolution scan onto the statistic image obtained from a standard resolution scan using a mixed-effects model with spatially varying coefficients. We evaluate our model via simulation studies and we compare its performance with a recently proposed model that operates at a single spatial resolution. We apply and compare the two models on data from a patient awaiting tumor resection. Both simulation study results and the real data analysis demonstrate that our newly proposed model indeed leverages the larger signal-to-noise ratio of the standard spatial resolution scan while maintaining the advantages of the high spatial resolution scan. PMID- 29334862 TI - The effects of an unanticipated side-cut on lower extremity kinematics and ground reaction forces during a drop landing. AB - Unanticipated direction to cut after landing may alter the lower extremity landing biomechanics when performing landing motions. These alterations may potentially increase the risk of ACL injury. The purpose of this study was to determine if an unanticipated side-cut affects lower extremity landing biomechanics in females. Eighteen recreational female athletes participated in two blocks of testing: the first block of testing consisted of three acceptable trials of anticipated dominant limb and non-dominant limb 45-degree diagonal cutting after landing, which were performed in a counterbalanced order. The second block of testing consisted of three acceptable trials of unanticipated dominant limb and non-dominant limb diagonal cutting after landing. Data analysis mainly focused on the dominant limb landing biomechanics. Unanticipated side-cut landing, compared (paired t-test, p < 0.05) to the anticipated landings, resulted in less hip abduction and tibial internal rotation angle at initial contact (IC) and a lower maximum ankle inversion angle and a greater maximum knee abduction angle, and knee and hip displacement. Also, greater posterior GRF and a longer time to peak medial GRF were exhibited. These outcomes indicate that athletes may adapt their landing mechanics to land unsafely when encountering an unanticipated event. PMID- 29334861 TI - COPD management by Swedish general practitioners - baseline results of the PRIMAIR study. AB - BACKGROUND: Chronic obstructive pulmonary disease (COPD) is a common cause of suffering and death. Evidence-based management of COPD by general practitioners (GPs) is crucial for decreasing the impact of the disease. Efficient strategies include early diagnosis, smoking cessation and multimodal treatment. AIM: To describe knowledge about and skills for managing COPD in GPs in Sweden. METHODS: Prior to COPD education (the PRIMAIR Study), GPs at primary health care centers (PHCCs) in Stockholm replied to 13 written, patient-case based, multiple choice and free-text questions about COPD. Their knowledge and practical management skills were assessed by assigned points that were analyzed with non-parametric tests. RESULTS: Overall, 250 GPs at 34 PHCCs replied (89% response rate). Total mean score was 9.9 (maximum 26). Scores were highest on 'management of smoking cessation', 'follow-up after exacerbation' and 'diagnostic procedures'. Spirometry was used frequently, although interpretation skills were suboptimal. 'Management of maintenance therapy', 'management of multimorbidity' and 'interprofessional cooperation' had mediocre scores. Scores were unrelated to whether there was a nurse-led asthma/COPD clinic at the PHCC. CONCLUSIONS: Swedish GPs' knowledge of COPD and adherence to current guidelines seem insufficient. A nurse-led asthma/COPD clinic at the PHCC does not correlate with sufficient COPD skills in the GPs. The relevance of this study to participants' actual clinical practice and usefulness of easy-to-access clinical guides are interesting topics for future investigation. To identify problem areas, we suggest using questionnaires prior to educational interventions. Key Points General practitioners (GPs) play a crucial role in providing evidence-based care for patients with chronic obstructive pulmonary disease (COPD) who are treated in primary care. Swedish GPs' knowledge about COPD and adherence to current guidelines seem insufficient. Areas in greatest need of improvement are spirometry interpretation, management of maintenance therapy, management of multimorbidity in patients with COPD and interprofessional cooperation. PMID- 29334863 TI - Totally Percutaneous Fenestration via the "Cheese-Wire" Technique to Facilitate Endovascular Aneurysm Repair in Chronic Aortic Dissection. AB - Here, we describe a totally percutaneous technique for longitudinal fenestration of a chronic dissection flap in the setting of endovascular aneurysm repair (EVAR), where the septum would otherwise preclude proper endograft sealing. This technique is demonstrated in a 65-year-old man with a history of open surgical repair of a Stanford type A aortic dissection, with a type B component that was managed nonoperatively. The patient developed aneurysmal degeneration of the infrarenal aorta during follow-up, and his anatomy was well suited for EVAR with the exception of a chronic dissection flap dividing the proximal seal zone. Using bilateral percutaneous access, a wire was passed through an existing fenestration in the septum from true to false lumen and snared from the contralateral side. Downward traction on this through-wire was then used as a "cheese-wire" to divide the septum longitudinally and clear it from the proximal fixation site. Removal of the septum provided an adequate proximal seal zone for the endograft, and standard infrarenal EVAR was then performed with a good technical result. Longitudinal fenestration using this technique is a useful adjunctive maneuver to facilitate EVAR in the setting of chronic aortic dissection and is safely achievable via a totally percutaneous approach. PMID- 29334864 TI - Pain Assessment Documentation After Opioid Administration at a Community Teaching Hospital. AB - PURPOSE: To compare pain assessment documentation postopioid administration in hospitalized patients before and after implementing nurse education. METHODS: Patients 18 years and older were randomly selected for inclusion if they received 1 opioid dose while admitted to the hospital. Through retrospective chart review, opioid data, including date and time, were collected for each opioid administered. Pain score data, including time and date of documentation, were recorded for analysis. The primary objective of this study was to determine whether a nursing education intervention would improve documentation of pain scores within an appropriate time frame postadministration of an opioid medication. The intervention was a training presentation uploaded to the institution's intranet with an assessment. The primary outcome was measured by comparing the frequency by which nurses documented pain scores following opioid administration before and after education. RESULTS: Three hundred twenty patients (160 patients per time period) were evaluated. The percentage of pain scores recorded within the appropriate assessment time following opioid administration increased from 32.9% to 37.8% ( P = .003). The proportion of appropriate pain score documentation increased 4.9% (95% confidence interval [CI]: 1.6%-8.2%). CONCLUSION: An increase in the documentation of efficacy assessments after opioid administration was demonstrated after nursing education. Further studies should be done to identify additional strategies to increase monitoring as well as to identify a benchmark for institutions with regard to pain management monitoring. PMID- 29334865 TI - "I Never Would Have Caught That Before": Pharmacist Perceptions of Using Clinical Decision Support for Antimicrobial Stewardship in the United States. AB - To systematically improve the appropriateness of antibiotic prescribing, antimicrobial stewardship programs have been developed. There is a paucity of literature examining how pharmacists perform antimicrobial stewardship using a clinical decision support system in a hospital setting. The purpose of this qualitative study was to develop a model exploring how pharmacists perform antimicrobial stewardship to identify areas for programmatic improvement. Semistructured interviews were conducted across a health care system until saturation of themes was reached. Pharmacists identified that self-efficacy and time were vital for antimicrobial stewardship to be performed, while culture of the hospital and attitude facilitated the process of stewardship. Antimicrobial stewardship programs using clinical decision support tools should ensure pharmacists have adequate time to address rules, provide easy-to-use resources and training to support self-efficacy, and engage influential physicians to support a culture of collaboration. PMID- 29334866 TI - Follow-up of an age-period-cohort analysis on alcohol-related mortality trends in Sweden 1970-2015 with predictions to 2025. AB - BACKGROUND AND AIMS: Several studies have indicated that birth cohorts are important in explaining trends in alcohol-related mortality. An earlier study from Sweden with data up to 2002 showed that birth cohorts that grew up under periods of more liberal alcohol policies had higher alcohol-related mortality than those cohorts growing up under more restrictive time periods. In spite of increasing alcohol consumption, predictions in 2002 also indicated lower alcohol related mortality in the future. The aim of this study is to follow-up whether the effects of birth cohorts and the predictions made for Sweden still holds using data up to 2015. METHOD: The study comprised an age-period-cohort analysis and predictions based on population predictions from Statistics Sweden. The analysis was based on all alcohol-related deaths in the Swedish population between 1969 and 2015 for the cohorts born in the decades 1920 through 1990. Data were restricted to people 15-84 years of age. In total, the analysis covered 68,341 deaths and more than 284 million person-years. RESULTS: Male and female cohorts born in the 1940s to 1950s exhibited the highest alcohol-related mortality, while those born in the 1970s continued to have the lowest alcohol related mortality rates. The predicted mortality rates for males are still anticipated to decrease somewhat through 2025. CONCLUSIONS: The updated age period-cohort analysis further supports the importance of focusing on restrictive alcohol policies targeting adolescents. PMID- 29334867 TI - Increasing prevalence of emotional symptoms in higher socioeconomic strata: Trend study among Danish schoolchildren 1991-2014. AB - AIMS: The aims of this study were: (a) to examine trends in daily emotional symptoms among 11- to 15-year-olds from 1991 to 2014 in Denmark, and (b) to examine trends in social inequality in daily emotional symptoms, that is, whether the differences in prevalence between adolescents with parents of varying occupational social class changed over time. METHODS: We combined seven comparable cross-sectional Health Behaviour in School-aged Children surveys ( N=31,169). Daily emotional symptoms were measured by the HBSC Symptom Check List and occupational social class (OSC) by students' reports about parents' occupation. We calculated absolute (per cent) differences in emotional symptoms between high and low OSC and relative differences by odds ratio for emotional symptoms by parents' OSC. RESULTS: Eight per cent reported at least one daily emotional symptoms, with an increasing trend from 1991 to 2014 ( p<0.001). The prevalence in high, middle and low OSC was 6.2%, 7.4% and 10.6% ( p<0.0001). From 1991 to 2014, there was an increase in the prevalence of daily emotional symptoms in high ( p<0.0001) and middle ( p<0.0001) but not low OSC ( p=0.4404). This resulted in a diminishing absolute social inequality in emotional symptoms. The statistical interaction between OSC and survey year was significant ( p=0.0023) and suggests a diminishing relative social inequality in emotional symptoms from 1991 to 2014. CONCLUSIONS: There was an increasing prevalence of daily emotional symptoms from 1991 to 2014 and a diminishing social inequality in prevalence of daily emotional symptoms in terms of both absolute and relative social inequality. PMID- 29334868 TI - Biomechanical analyses of synchronised swimming standard and contra-standard sculling. AB - Synchronised swimming involves a variety of sculling movements essential for body support and propulsion but its study is scarce. We aimed to biomechanically compare standard and contra-standard sculling techniques, and to observe the relationship between measures. Six synchronised swimmers performed two, 30 s maximal intensity, fully tethered standard and contra-standard sculling motions. Kinetic and kinematic data were obtained using a load-cell and underwater cameras, respectively. Force decreased along both techniques' bouts, but no differences in-between techniques were noted for any kinetic variables. Standard sculling presented a higher cycle rate and a lower elbow mean angle than the contra-standard sculling (2.4 +/- 0.3 vs. 2.0 +/- 0.2 cycles/s and 134.1 +/- 5.8 and 141.5 +/- 4.7 degrees , p < 0.05). In the standard sculling, by removing and maintaining the variation between participants (rw and r, respectively), the absolute mean force was directly related with cycle rate (rw = 0.60) and wrist angular velocity during flexion (r = 0.82), while in the contra-standard condition the force was inversely associated with wrist mean angle (r = -0.95) and directly with hand speed (rw = 0.76), and elbow angular velocity (rw ~ 0.60). Therefore, technique learning and training require different attention by coaches and swimmers. PMID- 29334869 TI - The influence of water depth on kinematic and spatiotemporal gait parameters during aquatic treadmill walking. AB - The purpose of this study was to investigate kinematic and spatiotemporal variables of aquatic treadmill walking at three different water depths. A total of 15 healthy individuals completed three two-minute walking trials at three different water depths. The aquatic treadmill walking was conducted at waist depth, chest-depth and neck-depth, while a customised 3-D underwater motion analysis system captured their walking. Each participant's self-selected walking speed at the waist level was used as a reference speed, which was applied to the remaining two test conditions. A repeated measures ANOVA showed statistically significant differences among the three walking conditions in stride length, cadence, peak hip extension, hip range of motion (ROM), peak ankle plantar flexion and ankle ROM (All p values < 0.05). The participants walked with increased stride length and decreased cadence during neck level as compared to waist and chest level. They also showed increased ankle ROM and decreased hip ROM as the water depth rose from waist and chest to the neck level. However, our study found no significant difference between waist and chest level water in all variables. Hydrodynamics, such as buoyancy and drag force, in response to changes in water depths, can affect gait patterns during aquatic treadmill walking. PMID- 29334870 TI - Images in Vascular Medicine. Linear morphea masquerading as superficial thrombophlebitis. PMID- 29334871 TI - Biomonitoring of arsenic in woodworkers exposed to CCA and evaluation of other non-occupational sources in Uruguay. AB - In Uruguay wood-impregnation plants use chromated copper arsenate (CCA) as preservative applying good manufacture practices (GMP). This study aims a retrospective evaluation of toxicologically relevant species levels in CCA exposed woodworker's urine (As-U) and an assessment of the effects of work risk factors and non-occupational sources in As-U of workers from a selected plant. From 2014 to 2016, As-U in 212 urine samples (As-U) of 73 woodworkers from six CCA impregnation plants were determined. In one of these plants, 35 workers were interviewed to obtain individual data of work tasks, lifestyles, diet, habits, etc. that may contribute to their overall exposure to Arsenic. Responses were statistically evaluated. Out of the 212 urine samples from 73 woodworkers, 96% showed lower levels of As-U than those established by health regulations (<35MUgL 1). According to their work tasks 34% of 35 surveyed workers showed high exposure risk to As and 29% moderate exposure risk. Although they have lower levels of As U owing to their personal protective equipment, As-U significantly correlate to work risk factors. Consumption of bottled water could also contribute to As-U levels as a non-occupational source. These results confirm that efforts of Uruguayan authorities to promote GMP were successful and justify the importance and frequency of As-U systematic biomonitoring for occupational risk assessment. A significant accomplishment of this work is that non-occupational sources of As like bottled water consumption should also be considered in future studies. PMID- 29334872 TI - Labelling as reference Centre of GRACE (Groupe francophone de Rehabilitation Amelioree apres ChirurgiE) for colorectal surgery: its impact on the implementation of enhanced recovery programme at the University Hospital of Liege. AB - BACKGROUND: Enhanced recovery programme (ERP) has been used in our hospital since 2005 for selected colorectal surgeries. Since October 2015, after labelling as GRACE reference centre, we included all patients scheduled for elective colorectal surgery in this programme. We assessed the impact of our labelling on the implementation of ERP. METHODS: Results of our first 100 patients entered in the GRACE database were analyzed: length of stay, complications, readmission, adherence to the protocol. These results are compared to those of the last 100 patients undergoing colorectal surgery before our labelling. RESULTS: Patients' characteristics in both groups were similar. The complications rate was similar in both groups. The global length of hospital stay was 4 [5] days vs. 8.5 [8] (median [IQR]), respectively after and before labelling; p < .001. The duration of hospitalization for the different subgroups (age, surgical approach, types of surgery) were significantly shorter after our labelling (respectively: p < .001, p < .01, and p < .05). CONCLUSIONS: Our results demonstrate that labelling as reference centre increases the efficiency of the implementation of ERP. The fact that all subgroups of patients benefit from ERP must encourage inclusion of all patients undergoing elective colorectal surgery in ERP. PMID- 29334873 TI - Nobiletin prevents cadmium-induced neuronal apoptosis by inhibiting reactive oxygen species and modulating JNK/ERK1/2 and Akt/mTOR networks in rats. AB - Objectives Cadmium (Cd), an extremely noxious environmental pollutant is known to induce oxidative stress leading to neurodegenerative diseases. Nobiletin, a citrus flavonoid is reported to possess various pharmacological properties. This study investigates the effects of nobiletin over Cd-induced neuronal apoptosis in rodent experimental model. Methods To separate group of male Sprague Dawley rats, Cd (2 mL/kg/day) was subcutaneously injected for one month which results in a dose level of 1 mg/kg Cd. Couple of days prior to Cd injection, the treatment group rats regularly received nobiletin (50, 100, or 200 mg/kg b.wt) orally through the study period. Results Cd-induced ROS levels and malondialdehyde (MDA) content were inhibited by nobiletin and improved glutathione levels. Nobiletin reduced neuronal apoptosis induced by Cd and raised cleaved caspase-3 levels. Intriguingly, nobiletin blocked JNK and Erk1/2 phosphorylation and down-regulated the pathways. Raised expression of kinases - MKK and ASK1 were reduced by nobiletin. Discussion The suppressed expression of phosphatases - PP2A and PP5 were up-regulated on nobiletin treatment. Nobiletin significantly blocked the activation of Akt/mTOR signaling. Enhanced phosphorylation of S6K1, Akt, and 4E BP1 induced by Cd was significantly inhibited by nobiletin. The raised levels of raptor and rictor proteins were remarkably down-regulated on nobiletin treatment. Collectively, the observations of this study indicate protective effects of nobiletin against Cd-induced neurotoxicity. PMID- 29334874 TI - A Comparison of Collaborative Care Outcomes in Two Health Care Systems: VA Clinics and Federally Qualified Health Centers. AB - OBJECTIVE: Collaborative care for depression results in symptom reduction when compared with usual care. No studies have systematically compared collaborative care outcomes between veterans treated at Veterans Affairs (VA) clinics and civilians treated at publicly funded federally qualified health centers (FQHCs) after controlling for demographic and clinical characteristics. METHODS: Data from two randomized controlled trials that used a similar collaborative care intervention for depression were combined to conduct post hoc analyses (N=759). The Telemedicine-Enhanced Antidepressant Management intervention was delivered in VA community-based outpatient clinics (CBOCs), and the Outreach Using Telemedicine for Rural Enhanced Access in Community Health intervention was delivered in FQHCs. Multivariate logistic regression was used to determine whether veteran status moderated the effect of the intervention on treatment response (>50% reduction in symptoms). RESULTS: There was a significant main effect for intervention (odds ratio [OR]=5.23, p<.001) and a moderating effect for veteran status, with lower response rates among veterans compared with civilians (OR=.21, p=.01). The addition of variables representing medication dosage and number of mental health and general health appointments did not influence the moderating effect. A sensitivity analysis stratified by gender found a significant moderating effect of veteran status for men but not women. CONCLUSIONS: Veteran status was a significant moderator of collaborative care effectiveness for depression, indicating that veterans receiving collaborative care at a CBOC are at risk of nonresponse. Unmeasured patient- or system-level characteristics may contribute to poorer response among veterans. PMID- 29334875 TI - Summary of Key Issues Raised in the Technology for Early Awareness of Addiction and Mental Illness (TEAAM-I) Meeting. AB - Technology provides an unparalleled opportunity to remove barriers to earlier identification and engagement in services for mental and addictive disorders by reaching people earlier in the course of illness and providing links to just-in time, cost-effective interventions. Achieving this opportunity, however, requires stakeholders to challenge underlying assumptions about traditional pathways to mental health care. In this Open Forum, the authors highlight key issues discussed in the Technology for Early Awareness of Addiction and Mental Illness (TEAAM-I) meeting-held October 13-14, 2016, in New York City-that are related to three identified areas in which technology provides important and unique opportunities to advance early identification, increase service engagement, and decrease the duration of untreated mental and addictive disorders. PMID- 29334877 TI - Utilization of Mental Health Services by Children Displaced by Hurricane Katrina. AB - OBJECTIVE: This study examined changes in utilization of mental health services after Hurricane Katrina among children with preexisting conditions who were displaced from their homes in Louisiana disaster counties and resettled in Texas. METHODS: A retrospective analysis was performed on Medicaid claims data for 101,950 children from 2004 to 2006. Pre-post changes in utilization of mental health services by the displaced children and three control groups were compared. The control groups were children from Louisiana disaster counties who were not displaced, Louisiana children from nondisaster counties, and Texas children enrolled in Medicaid. RESULTS: The proportion of children who had a prescription fill for psychotropic medication and the average days' supply per child decreased in each group, but the decreases were significantly larger for the displaced group than for the control groups. The decreases in both measures were largest for stimulants and antidepressants, the two most common medication classes. By contrast, changes in the proportion of children with an encounter involving psychiatric services and the average number of psychiatric services encounters per child did not vary systematically across the displaced and control groups. CONCLUSIONS: The contrast between the results for medication utilization and encounters reveals a potential gap in post-Katrina provision of care. Although the findings for encounters indicate that, on average, displaced children did not experience a disruption in provider visits, the medication estimates suggest that they often did not obtain pharmaceutical treatment. Future disaster responses may be improved by addressing logistical impediments faced by disaster victims in filling their prescriptions for psychiatric medications. PMID- 29334876 TI - Three Nontraditional Approaches to Improving the Capacity, Accessibility, and Quality of Mental Health Services: An Overview. AB - To provide evidence for wider use of peer workers and other nonprofessionals, the authors examined three approaches to mental health service provision-peer support worker (PSW) programs, task shifting, and mental health first-aid and community advocacy organizations-summarizing their effectiveness, identifying similarities and differences, and highlighting opportunities for integration. Relevant articles obtained from PubMed, MEDLINE, and Google Scholar searches are discussed. Studies indicate that PSWs can achieve outcomes equal to or better than those achieved by nonpeer mental health professionals. PSWs can be particularly effective in reducing hospital admissions and inpatient days and engaging severely ill patients. When certain care tasks are given to individuals with less training than professionals (task shifting), these staff members can provide psychoeducation, engage service users in treatment, and help them achieve symptom reduction and manage risk of relapse. Mental health first-aid and community organizations can reduce stigma, increase awareness of mental health issues, and encourage help seeking. Most PSW programs have reported implementation challenges, whereas such challenges are fewer in task-shifting programs and minimal in mental health first-aid. Despite challenges in scaling and integrating these approaches into larger systems, they hold promise for improving access to and quality of care. Research is needed on how these approaches can be combined to expand a community's capacity to provide care. Because of the serious shortage of mental health providers globally and the rising prevalence of mental illness, utilizing nontraditional providers may be the only solution in both low- and high-resource settings, at least in the short term. PMID- 29334878 TI - The Use of Standardized Discharge in IPS Supported Employment Programs. AB - OBJECTIVE: Some researchers have argued for using standardized discharge rules in individual placement and support (IPS) based on time of unemployment. To evaluate potential adverse outcomes of these rules, the authors examined time to first job over 24 months in a large randomized controlled study. METHODS: This secondary analysis of 2,055 participants in the Mental Health Treatment Study, using bootstrapping and survival analysis, estimated and compared the likelihood of finding a first job in the IPS and control groups during each quarter over 24 months. RESULTS: Although the likelihood of obtaining a first job declined over time, IPS recipients were more likely than participants in a control group to find first jobs for at least 18 months. CONCLUSIONS: Use of standardized discharge rules in IPS, based on initial periods of unemployment, may be cost effective but would penalize recipients who respond more slowly. Natural attrition may be a more sensitive and ethical way to create capacity. PMID- 29334879 TI - The Extent to Which Psychiatrists Diagnose and Treat Substance Use Disorders. PMID- 29334880 TI - Variability in Clinical Outcomes for Youths Treated for Subthreshold Severe Mental Disorders at an Early Intervention Service. AB - OBJECTIVE: The study assessed the longitudinal clinical and functional outcomes of young people receiving early intervention services for subthreshold manifestations of severe mental disorders at a youth mental health service in Sydney, Australia. METHODS: The six-month, prospective, longitudinal study collected data on clinical outcomes of 243 young people treated for subsyndromal presentations of putative major mental disorders. Reliable change index scores and effect sizes were calculated to compare results at baseline, three months, and six months for measures of symptoms (Brief Psychiatric Rating Scale [BPRS]), psychological distress (Kessler 10 [K10]), and social functioning (Social and Occupational Functioning Assessment Scale [SOFAS]). RESULTS: There was variability in outcomes across each of the outcome measures, with 25%, 33%, and 23% of patients showing reliable improvement and 9%, 13%, and 5% showing reliable deterioration for the SOFAS, K10, and BPRS, respectively. Many individuals did not show linear improvement or deterioration, with reliable change within individuals varying significantly between the zero- to three-month and three- to six-month time points. After the analyses were controlled for covariates, baseline severity or impairment and number of sessions with a psychiatrist or psychologist contributed a small (4%-8%) but significant amount to the total variance in outcomes at six months. CONCLUSIONS: Most individuals did not show significant deterioration, and about one in four showed reliable improvement by six months. However, individual patterns of change were diverse, highlighting the importance of further research into factors that influence treatment outcomes among youths with subthreshold presentations of severe mental disorders. PMID- 29334881 TI - A Proactive Behavioral Health Service Model to Address Use of Constant Observation in a General Hospital. AB - In hospitals, use of constant observation (CO) causes significant economic burden without demonstrated reduction in adverse events. A novel quality improvement (QI) project was developed to reduce use of CO by integrating proactive behavioral health management of all patients requiring CO in a general hospital. Specific nonpharmacologic and pharmacologic interventions used in this project, which included 491 patients, are discussed. Data collected were compared with data from a baseline period before project implementation. The average monthly cost of observers was reduced by 33%, and length of stay was reduced 15% without increased complications. Using QI to develop proactive and consistent involvement of a designated behavioral health team and potentially reproducible care protocols for patients requiring CO resulted in improvement in quality, reduction in cost, and enhanced behavioral health integration in the general hospital. PMID- 29334882 TI - Federal Parity and Access to Behavioral Health Care in Private Health Plans. AB - OBJECTIVE: The 2008 Mental Health Parity and Addiction Equity Act (MHPAEA) sought to improve access to behavioral health care by regulating health plans' coverage and management of services. Health plans have some discretion in how to achieve compliance with MHPAEA, leaving questions about its likely effects on health plan policies. In this study, the authors' objective was to determine how private health plans' coverage and management of behavioral health treatment changed after the federal parity law's full implementation. METHODS: A nationally representative survey of commercial health plans was conducted in 60 market areas across the continental United States, achieving response rates of 89% in 2010 (weighted N=8,431) and 80% in 2014 (weighted N=6,974). Senior executives at responding plans were interviewed regarding behavioral health services in each year and (in 2014) regarding changes. Student's t tests were used to examine changes in services covered, cost-sharing, and prior authorization requirements for both behavioral health and general medical care. RESULTS: In 2014, 68% of insurance products reported having expanded behavioral health coverage since 2010. Exclusion of eating disorder coverage was eliminated between 2010 (23%) and 2014 (0%). However, more products reported excluding autism treatment in 2014 (24%) than 2010 (8%). Most plans reported no change to prior-authorization requirements between 2010 and 2014. CONCLUSIONS: Implementation of federal parity legislation appears to have been accompanied by continuing improvement in behavioral health coverage. The authors did not find evidence of widespread noncompliance or of unintended effects, such as dropping coverage of behavioral health care altogether. PMID- 29334883 TI - Renal outcomes in patients initiated on tenofovir disoproxil fumarate-based antiretroviral therapy at a community health centre in Malawi. AB - Tenofovir-based antiretroviral therapy (TDF ART) is the first-line regimen for human immunodeficiency virus (HIV) in Africa. However, contemporary data on nephrotoxicity are lacking. We determined the renal outcomes of patients commenced on TDF ART in Malawi. ART-naive patients initiated on TDF ART at a community health centre between 1 July 2013 and 31 December 2015 were included. The estimated glomerular filtration rate (eGFR, Cockcroft-Gault) was recorded at the initiation of therapy and over 18 months thereafter. The prevalence of renal impairment at ART initiation (eGFR < 60 ml/min) and the incidence of nephrotoxicity (eGFR < 50 ml/min) were determined. A total of 439 patients (median age: 32 years; 317 [72.2%] female) were included. Twenty-one (4.8%) patients had renal impairment at ART initiation; eGFR improved in all during follow-up. Nephrotoxicity occurred in 17 (4.0%) patients with eGFR > 50 ml/min at baseline, predominantly within the first six months of therapy. Increasing age and diastolic hypertension (>100 mmHg) were independent risk factors for nephrotoxicity development. The prevalence of kidney disease at ART initiation was 4.8% and nephrotoxicity occurred in 4.0%. Some eGFR decline may have been due to weight gain. Targeted monitoring of kidney function six months after TDF initiation should be considered in Malawi. PMID- 29334884 TI - Acroangiodermatitis mimicking Kaposi's sarcoma in an HIV-positive man. AB - Kaposi's sarcoma (KS) is the commonest human immunodeficiency virus (HIV)-related malignancy with its characteristic cutaneous morphological appearance and histopathological features. However, it can be simulated by other co-morbid opportunistic infections and unrelated dermatological conditions. We describe such a case of acroangiodermatitis in an HIV co-infected man, based on exclusion of KS histologically and the absence of human herpesvirus 8, the causative agent of KS. PMID- 29334885 TI - 2016 United Kingdom national guideline on the sexual health care of men who have sex with men. AB - This guideline is intended for use in UK Genitourinary medicine clinics and sexual health services but is likely to be of relevance in all sexual health settings, including general practice and Contraception and Sexual Health (CASH) services, where men who have sex with men (MSM) seek sexual health care or where addressing the sexual health needs of MSM may have public health benefits. For the purposes of this document, MSM includes all gay, bisexual and all other males who have sex with other males and both cis and trans men. This document does not provide guidance on the treatment of particular conditions where this is covered in other British Association for Sexual Health and HIV (BASHH) Guidelines but outlines best practice in multiple aspects of the sexual health care of MSM. Where prevention of sexually transmitted infections including HIV can be addressed as an integral part of clinical care, this is consistent with the concept of combination prevention and is included. The document is designed primarily to provide guidance on the direct clinical care of MSM but also makes reference to the design and delivery of services with the aim of supporting clinicians and commissioners in providing effective services. Methodology This document was produced in accordance with the guidance set out in the BASHH CEG's document 'Framework for guideline development and assessment' published in 2010 at http://www.bashh.org/guidelines and with reference to the Agree II instrument. Following the production of the updated framework in April 2015, the GRADE system for assessing evidence was adopted and the draft recommendations were regraded. Search strategy (see also Appendix 1) Ovid Medline 1946 to December 2014, Medline daily update, Embase 1974 to December 2014, Pubmed NeLH Guidelines Database, Cochrane library from 2000 to December 2014. Search language English only. The search for Section 3 was conducted on PubMed to December 2014. Priority was given to peer-reviewed papers published in scientific journals, although for many issues evidence includes conference abstracts listed on the Embase database. In addition, for 'Identification of problematic recreational drug and alcohol use' section and 'Sexual problems and dysfunctions in MSM' section, searches included PsycINFO. Methods Article titles and abstracts were reviewed and if relevant the full text article was obtained. Priority was given to randomised controlled trial and systematic review evidence, and recommendations made and graded on the basis of best available evidence. Piloting and feedback The first draft of the guideline was circulated to the writing group and to a small group of relevant experts, third sector partners and patient representatives who were invited to comment on the whole document and specifically on particular sections. The revised draft was reviewed by the CEG and then reviewed by the BASHH patient/public panel and posted on the BASHH website for public consultation. The final draft was piloted before publication. Guideline update The guidelines will be reviewed and revised in five years' time, 2022. PMID- 29334886 TI - Factors associated with recent unsuppressed viral load in HIV-1-infected patients in care on first-line antiretroviral therapy in South Africa. AB - Unsuppressed viral load (VL) in patients on antiretroviral therapy (ART) occurs when treatment fails to suppress a person's VL and is associated with decreased survival and increased HIV transmission. The objective of this study was to evaluate factors associated with unsuppressed VL (VL > 400 copies/ml) in patients currently in care on first-line ART for >= 6 months attending South African public healthcare facilities. We analysed electronic medical records of ART patients with a VL result on record who started ART between January 2004 and April 2016 from 271 public health facilities. We present descriptive and multivariable logistic regression for unsuppressed VL at last visit using a priori variables. We included 244,370 patients (69% female) on first-line ART in April 2016 for >= 6 months. Median age at ART start was 33 years (7% were < 15 years old). Median duration on ART was 3.7 years. Adjusting for other variables, factors associated with having an unsuppressed VL at the most recent visit among patients in care included: (1) < 15 years old at ART start (adjusted odds ratio [aOR]=2.58; 95% CI = 2.37, 2.81) versus 15-49 years at ART start, (2) male gender (aOR = 1.29; 95% CI = 1.25, 1.35), (3) 6-12 months on ART versus longer (aOR = 1.34; 95% CI = 1.29, 1.40), (4) on tuberculosis (TB) treatment (aOR = 1.78; 95% CI = 1.48, 2.13), and (5) prior ART exposure versus none (aOR = 1.20; 95% CI = 1.08, 1.32). Approximately 85% of the ART cohort who were in care had achieved viral suppression, though men, youth/adolescents, patients with prior ART exposure, those with short duration of ART, and patients on TB treatment had increased odds of not achieving viral suppression. There is a need to develop and evaluate targeted interventions for ART patients in care who are at high risk of unsuppressed VL. PMID- 29334887 TI - Bi-objective integer programming for RNA secondary structure prediction with pseudoknots. AB - BACKGROUND: RNA structure prediction is an important field in bioinformatics, and numerous methods and tools have been proposed. Pseudoknots are specific motifs of RNA secondary structures that are difficult to predict. Almost all existing methods are based on a single model and return one solution, often missing the real structure. An alternative approach would be to combine different models and return a (small) set of solutions, maximizing its quality and diversity in order to increase the probability that it contains the real structure. RESULTS: We propose here an original method for predicting RNA secondary structures with pseudoknots, based on integer programming. We developed a generic bi-objective integer programming algorithm allowing to return optimal and sub-optimal solutions optimizing simultaneously two models. This algorithm was then applied to the combination of two known models of RNA secondary structure prediction, namely MEA and MFE. The resulting tool, called BiokoP, is compared with the other methods in the literature. The results show that the best solution (structure with the highest F1-score) is, in most cases, given by BiokoP. Moreover, the results of BiokoP are homogeneous, regardless of the pseudoknot type or the presence or not of pseudoknots. Indeed, the F1-scores are always higher than 70% for any number of solutions returned. CONCLUSION: The results obtained by BiokoP show that combining the MEA and the MFE models, as well as returning several optimal and several sub-optimal solutions, allow to improve the prediction of secondary structures. One perspective of our work is to combine better mono criterion models, in particular to combine a model based on the comparative approach with the MEA and the MFE models. This leads to develop in the future a new multi-objective algorithm to combine more than two models. BiokoP is available on the EvryRNA platform: https://EvryRNA.ibisc.univ-evry.fr . PMID- 29334888 TI - diceR: an R package for class discovery using an ensemble driven approach. AB - BACKGROUND: Given a set of features, researchers are often interested in partitioning objects into homogeneous clusters. In health research, cancer research in particular, high-throughput data is collected with the aim of segmenting patients into sub-populations to aid in disease diagnosis, prognosis or response to therapy. Cluster analysis, a class of unsupervised learning techniques, is often used for class discovery. Cluster analysis suffers from some limitations, including the need to select up-front the algorithm to be used as well as the number of clusters to generate, in addition, there may exist several groupings consistent with the data, making it very difficult to validate a final solution. Ensemble clustering is a technique used to mitigate these limitations and facilitate the generalization and reproducibility of findings in new cohorts of patients. RESULTS: We introduce diceR (diverse cluster ensemble in R), a software package available on CRAN: https://CRAN.R-project.org/package=diceR CONCLUSIONS: diceR is designed to provide a set of tools to guide researchers through a general cluster analysis process that relies on minimizing subjective decision-making. Although developed in a biological context, the tools in diceR are data-agnostic and thus can be applied in different contexts. PMID- 29334889 TI - Protein-protein interface hot spots prediction based on a hybrid feature selection strategy. AB - BACKGROUND: Hot spots are interface residues that contribute most binding affinity to protein-protein interaction. A compact and relevant feature subset is important for building machine learning methods to predict hot spots on protein protein interfaces. Although different methods have been used to detect the relevant feature subset from a variety of features related to interface residues, it is still a challenge to detect the optimal feature subset for building the final model. RESULTS: In this study, three different feature selection methods were compared to propose a new hybrid feature selection strategy. This new strategy was proved to effectively reduce the feature space when we were building the prediction models for identifying hotspot residues. It was tested on eighty two features, both conventional and newly proposed. According to the strategy, combining the feature subsets selected by decision tree and mRMR (maximum Relevance Minimum Redundancy) individually, we were able to build a model with 6 features by using a PSFS (Pseudo Sequential Forward Selection) process. Compared with other state-of-art methods for the independent test set, our model had shown better or comparable predictive performances (with F-measure 0.622 and recall 0.821). Analysis of the 6 features confirmed that our newly proposed feature CNSV_REL1 was important for our model. The analysis also showed that the complementarity between features should be considered as an important aspect when conducting the feature selection. CONCLUSION: In this study, most important of all, a new strategy for feature selection was proposed and proved to be effective in selecting the optimal feature subset for building prediction models, which can be used to predict hot spot residues on protein-protein interfaces. Moreover, two aspects, the generalization of the single feature and the complementarity between features, were proved to be of great importance and should be considered in feature selection methods. Finally, our newly proposed feature CNSV_REL1 had been proved an alternative and effective feature in predicting hot spots by our study. Our model is available for users through a webserver: http://zhulab.ahu.edu.cn/iPPHOT/ . PMID- 29334891 TI - Tuning iteration space slicing based tiled multi-core code implementing Nussinov's RNA folding. AB - BACKGROUND: RNA folding is an ongoing compute-intensive task of bioinformatics. Parallelization and improving code locality for this kind of algorithms is one of the most relevant areas in computational biology. Fortunately, RNA secondary structure approaches, such as Nussinov's recurrence, involve mathematical operations over affine control loops whose iteration space can be represented by the polyhedral model. This allows us to apply powerful polyhedral compilation techniques based on the transitive closure of dependence graphs to generate parallel tiled code implementing Nussinov's RNA folding. Such techniques are within the iteration space slicing framework - the transitive dependences are applied to the statement instances of interest to produce valid tiles. The main problem at generating parallel tiled code is defining a proper tile size and tile dimension which impact parallelism degree and code locality. RESULTS: To choose the best tile size and tile dimension, we first construct parallel parametric tiled code (parameters are variables defining tile size). With this purpose, we first generate two nonparametric tiled codes with different fixed tile sizes but with the same code structure and then derive a general affine model, which describes all integer factors available in expressions of those codes. Using this model and known integer factors present in the mentioned expressions (they define the left-hand side of the model), we find unknown integers in this model for each integer factor available in the same fixed tiled code position and replace in this code expressions, including integer factors, with those including parameters. Then we use this parallel parametric tiled code to implement the well known tile size selection (TSS) technique, which allows us to discover in a given search space the best tile size and tile dimension maximizing target code performance. CONCLUSIONS: For a given search space, the presented approach allows us to choose the best tile size and tile dimension in parallel tiled code implementing Nussinov's RNA folding. Experimental results, received on modern Intel multi-core processors, demonstrate that this code outperforms known closely related implementations when the length of RNA strands is bigger than 2500. PMID- 29334890 TI - Characterization of the late embryogenesis abundant (LEA) proteins family and their role in drought stress tolerance in upland cotton. AB - BACKGROUND: Late embryogenesis abundant (LEA) proteins are large groups of hydrophilic proteins with major role in drought and other abiotic stresses tolerance in plants. In-depth study and characterization of LEA protein families have been carried out in other plants, but not in upland cotton. The main aim of this research work was to characterize the late embryogenesis abundant (LEA) protein families and to carry out gene expression analysis to determine their potential role in drought stress tolerance in upland cotton. Increased cotton production in the face of declining precipitation and availability of fresh water for agriculture use is the focus for breeders, cotton being the backbone of textile industries and a cash crop for many countries globally. RESULTS: In this work, a total of 242, 136 and 142 LEA genes were identified in G. hirsutum, G. arboreum and G. raimondii respectively. The identified genes were classified into eight groups based on their conserved domain and phylogenetic tree analysis. LEA 2 were the most abundant, this could be attributed to their hydrophobic character. Upland cotton LEA genes have fewer introns and are distributed in all chromosomes. Majority of the duplicated LEA genes were segmental. Syntenic analysis showed that greater percentages of LEA genes are conserved. Segmental gene duplication played a key role in the expansion of LEA genes. Sixty three miRNAs were found to target 89 genes, such as miR164, ghr-miR394 among others. Gene ontology analysis revealed that LEA genes are involved in desiccation and defense responses. Almost all the LEA genes in their promoters contained ABRE, MBS, W-Box and TAC-elements, functionally known to be involved in drought stress and other stress responses. Majority of the LEA genes were involved in secretory pathways. Expression profile analysis indicated that most of the LEA genes were highly expressed in drought tolerant cultivars Gossypium tomentosum as opposed to drought susceptible, G. hirsutum. The tolerant genotypes have a greater ability to modulate genes under drought stress than the more susceptible upland cotton cultivars. CONCLUSION: The finding provides comprehensive information on LEA genes in upland cotton, G. hirsutum and possible function in plants under drought stress. PMID- 29334892 TI - The genome of a prasinoviruses-related freshwater virus reveals unusual diversity of phycodnaviruses. AB - BACKGROUND: Phycodnaviruses are widespread algae-infecting large dsDNA viruses and presently contain six genera: Chlorovirus, Prasinovirus, Prymnesiovirus, Phaeovirus, Coccolithovirus and Raphidovirus. The members in Prasinovirus are identified as marine viruses due to their marine algal hosts, while prasinovirus freshwater relatives remain rarely reported. RESULTS: Here we present the complete genomic sequence of a novel phycodnavirus, Dishui Lake Phycodnavirus 1 (DSLPV1), which was assembled from Dishui Lake metagenomic datasets. DSLPV1 harbors a linear genome of 181,035 bp in length (G + C content: 52.7%), with 227 predicted genes and 2 tRNA encoding regions. Both comparative genomic and phylogenetic analyses indicate that the freshwater algal virus DSLPV1 is closely related to the members in Prasinovirus, a group of marine algae infecting viruses. In addition, a complete eukaryotic histone H3 variant was identified in the genome of DSLPV1, which is firstly detected in phycodnaviruses and contributes to understand the interaction between algal virus and its eukaryotic hosts. CONCLUSION: It is in a freshwater ecosystem that a novel Prasinovirus related viral complete genomic sequence is discovered, which sheds new light on the evolution and diversity of the algae infecting Phycodnaviridae. PMID- 29334893 TI - High-sensitivity HLA typing by Saturated Tiling Capture Sequencing (STC-Seq). AB - BACKGROUND: Highly polymorphic human leukocyte antigen (HLA) genes are responsible for fine-tuning the adaptive immune system. High-resolution HLA typing is important for the treatment of autoimmune and infectious diseases. Additionally, it is routinely performed for identifying matched donors in transplantation medicine. Although many HLA typing approaches have been developed, the complexity, low-efficiency and high-cost of current HLA-typing assays limit their application in population-based high-throughput HLA typing for donors, which is required for creating large-scale databases for transplantation and precision medicine. RESULTS: Here, we present a cost-efficient Saturated Tiling Capture Sequencing (STC-Seq) approach to capturing 14 HLA class I and II genes. The highly efficient capture (an approximately 23,000-fold enrichment) of these genes allows for simplified allele calling. Tests on five genes (HLA A/B/C/DRB1/DQB1) from 31 human samples and 351 datasets using STC-Seq showed results that were 98% consistent with the known two sets of digitals (field1 and field2) genotypes. Additionally, STC can capture genomic DNA fragments longer than 3 kb from HLA loci, making the library compatible with the third-generation sequencing. CONCLUSIONS: STC-Seq is a highly accurate and cost-efficient method for HLA typing which can be used to facilitate the establishment of population based HLA databases for the precision and transplantation medicine. PMID- 29334894 TI - Rare variant association analysis in case-parents studies by allowing for missing parental genotypes. AB - BACKGROUND: The development of next-generation sequencing technologies has facilitated the identification of rare variants. Family-based design is commonly used to effectively control for population admixture and substructure, which is more prominent for rare variants. Case-parents studies, as typical strategies in family-based design, are widely used in rare variant-disease association analysis. Current methods in case-parents studies are based on complete case parents data; however, parental genotypes may be missing in case-parents trios, and removing these data may lead to a loss in statistical power. The present study focuses on testing for rare variant-disease association in case-parents study by allowing for missing parental genotypes. RESULTS: In this report, we extended the collapsing method for rare variant association analysis in case parents studies to allow for missing parental genotypes, and investigated the performance of two methods by using the difference of genotypes between affected offspring and their corresponding "complements" in case-parent trios and TDT framework. Using simulations, we showed that, compared with the methods just only using complete case-parents data, the proposed strategy allowing for missing parental genotypes, or even adding unrelated affected individuals, can greatly improve the statistical power and meanwhile is not affected by population stratification. CONCLUSIONS: We conclude that adding case-parents data with missing parental genotypes to complete case-parents data set can greatly improve the power of our strategy for rare variant-disease association. PMID- 29334895 TI - Challenges imposed by minor reference alleles on the identification and reporting of clinical variants from exome data. AB - BACKGROUND: The conventional variant calling of pathogenic alleles in exome and genome sequencing requires the presence of the non-pathogenic alleles as genome references. This hinders the correct identification of variants with minor and/or pathogenic reference alleles warranting additional approaches for variant calling. RESULTS: More than 26,000 Exome Aggregation Consortium (ExAC) variants have a minor reference allele including variants with known ClinVar disease alleles. For instance, in a number of variants related to clotting disorders, the phenotype-associated allele is a human genome reference allele (rs6025, rs6003, rs1799983, and rs2227564 using the assembly hg19). We highlighted how the current variant calling standards miss homozygous reference disease variants in these sites and provided a bioinformatic panel that can be used to screen these variants using commonly available variant callers. We present exome sequencing results from an individual with venous thrombosis to emphasize how pathogenic alleles in clinically relevant variants escape variant calling while non pathogenic alleles are detected. CONCLUSIONS: This article highlights the importance of specialized variant calling strategies in clinical variants with minor reference alleles especially in the context of personal genomes and exomes. We provide here a simple strategy to screen potential disease-causing variants when present in homozygous reference state. PMID- 29334896 TI - Global analysis of prokaryotic tRNA-derived cyclodipeptide biosynthesis. AB - BACKGROUND: Among naturally occurring small molecules, tRNA-derived cyclodipeptides are a class that have attracted attention for their diverse and desirable biological activities. However, no tools are available to link cyclodipeptide synthases identified within prokaryotic genome sequences to their chemical products. Consequently, it is unclear how many genetically encoded cyclodipeptides represent novel products, and which producing organisms should be targeted for discovery. RESULTS: We developed a pipeline for identification and classification of cyclodipeptide biosynthetic gene clusters and prediction of aminoacyl-tRNA substrates and complete chemical structures. We leveraged this tool to conduct a global analysis of tRNA-derived cyclodipeptide biosynthesis in 93,107 prokaryotic genomes, and compared predicted cyclodipeptides to known cyclodipeptide synthase products and all known chemically characterized cyclodipeptides. By integrating predicted chemical structures and gene cluster architectures, we created a unified map of known and unknown genetically encoded cyclodipeptides. CONCLUSIONS: Our analysis suggests that sizeable regions of the chemical space encoded within sequenced prokaryotic genomes remain unexplored. Our map of the landscape of genetically encoded cyclodipeptides provides candidates for targeted discovery of novel compounds. The integration of our pipeline into a user-friendly web application provides a resource for further discovery of cyclodipeptides in newly sequenced prokaryotic genomes. PMID- 29334898 TI - seq-seq-pan: building a computational pan-genome data structure on whole genome alignment. AB - BACKGROUND: The increasing application of next generation sequencing technologies has led to the availability of thousands of reference genomes, often providing multiple genomes for the same or closely related species. The current approach to represent a species or a population with a single reference sequence and a set of variations cannot represent their full diversity and introduces bias towards the chosen reference. There is a need for the representation of multiple sequences in a composite way that is compatible with existing data sources for annotation and suitable for established sequence analysis methods. At the same time, this representation needs to be easily accessible and extendable to account for the constant change of available genomes. RESULTS: We introduce seq-seq-pan, a framework that provides methods for adding or removing new genomes from a set of aligned genomes and uses these to construct a whole genome alignment. Throughout the sequential workflow the alignment is optimized for generating a representative linear presentation of the aligned set of genomes, that enables its usage for annotation and in downstream analyses. CONCLUSIONS: By providing dynamic updates and optimized processing, our approach enables the usage of whole genome alignment in the field of pan-genomics. In addition, the sequential workflow can be used as a fast alternative to existing whole genome aligners for aligning closely related genomes. seq-seq-pan is freely available at https://gitlab.com/rki_bioinformatics. PMID- 29334897 TI - The genome sequence of the commercially cultivated mushroom Agrocybe aegerita reveals a conserved repertoire of fruiting-related genes and a versatile suite of biopolymer-degrading enzymes. AB - BACKGROUND: Agrocybe aegerita is an agaricomycete fungus with typical mushroom features, which is commercially cultivated for its culinary use. In nature, it is a saprotrophic or facultative pathogenic fungus causing a white-rot of hardwood in forests of warm and mild climate. The ease of cultivation and fructification on solidified media as well as its archetypal mushroom fruit body morphology render A. aegerita a well-suited model for investigating mushroom developmental biology. RESULTS: Here, the genome of the species is reported and analysed with respect to carbohydrate active genes and genes known to play a role during fruit body formation. In terms of fruit body development, our analyses revealed a conserved repertoire of fruiting-related genes, which corresponds well to the archetypal fruit body morphology of this mushroom. For some genes involved in fruit body formation, paralogisation was observed, but not all fruit body maturation-associated genes known from other agaricomycetes seem to be conserved in the genome sequence of A. aegerita. In terms of lytic enzymes, our analyses suggest a versatile arsenal of biopolymer-degrading enzymes that likely account for the flexible life style of this species. Regarding the amount of genes encoding CAZymes relevant for lignin degradation, A. aegerita shows more similarity to white-rot fungi than to litter decomposers, including 18 genes coding for unspecific peroxygenases and three dye-decolourising peroxidase genes expanding its lignocellulolytic machinery. CONCLUSIONS: The genome resource will be useful for developing strategies towards genetic manipulation of A. aegerita, which will subsequently allow functional genetics approaches to elucidate fundamentals of fruiting and vegetative growth including lignocellulolysis. PMID- 29334899 TI - Association between sequence variants in panicle development genes and the number of spikelets per panicle in rice. AB - BACKGROUND: Balancing panicle-related traits such as panicle length and the numbers of primary and secondary branches per panicle, is key to improving the number of spikelets per panicle in rice. Identifying genetic information contributes to a broader understanding of the roles of gene and provides candidate alleles for use as DNA markers. Discovering relations between panicle related traits and sequence variants allows opportunity for molecular application in rice breeding to improve the number of spikelets per panicle. RESULTS: In total, 142 polymorphic sites, which constructed 58 haplotypes, were detected in coding regions of ten panicle development gene and 35 sequence variants in six genes were significantly associated with panicle-related traits. Rice cultivars were clustered according to their sequence variant profiles. One of the four resultant clusters, which contained only indica and tong-il varieties, exhibited the largest average number of favorable alleles and highest average number of spikelets per panicle, suggesting that the favorable allele combination found in this cluster was beneficial in increasing the number of spikelets per panicle. CONCLUSIONS: Favorable alleles identified in this study can be used to develop functional markers for rice breeding programs. Furthermore, stacking several favorable alleles has the potential to substantially improve the number of spikelets per panicle in rice. PMID- 29334900 TI - Process evaluation of the RaDIANT community study: a dialysis facility-level intervention to increase referral for kidney transplantation. AB - BACKGROUND: The Reducing Disparities in Access to kidNey Transplantation Community Study (RaDIANT) was an End-Stage Renal Disease (ESRD) Network 6 developed, dialysis facility-level randomized trial testing the effectiveness of a 1-year multicomponent education and quality improvement intervention in increasing referral for kidney transplant evaluation among selected Georgia dialysis facilities. METHODS: To assess implementation of the RaDIANT intervention, we conducted a process evaluation at the conclusion of the intervention period (January-December 2014). We administered a 20-item survey to the staff involved with transplant education in 67 dialysis facilities randomized to participate in intervention activities. Survey items assessed facility participation in the intervention (fidelity and reach), helpfulness and willingness to continue intervention activities (sustainability), suggestions for improving intervention components (sustainability), and factors that may have influenced participation and study outcomes (context). We defined high fidelity to the intervention as completing 11 or more activities, and high participation in an activity as having at least 75% participation across intervention facilities. RESULTS: Staff from 65 of the 67 dialysis facilities completed the questionnaire, and more than half (50.8%) reported high adherence (fidelity) to RaDIANT intervention requirements. Nearly two-thirds (63.1%) of facilities reported that RaDIANT intervention activities were helpful or very helpful, with 90.8% of facilities willing to continue at least one intervention component beyond the study period. Intervention components with high participation emphasized staff and patient-level education, including in-service staff orientations, patient and family education programs, and patient educational materials. Suggested improvements for intervention activities emphasized addressing financial barriers to transplantation, with financial education materials perceived as most helpful among RaDIANT educational materials. Variation in facility-level fidelity of the RADIANT intervention did not significantly influence the mean difference in proportion of patients referred pre- (2013) and post-intervention (2014). CONCLUSIONS: We found high fidelity to the RaDIANT multicomponent intervention at the majority of intervention facilities, with sustainability of select intervention components at intervention facilities and feasibility for dissemination across ESRD Networks. Future modification of the intervention should emphasize financial education regarding kidney transplantation and amend intervention components that facilities perceive as time-intensive or non-sustainable. TRIAL REGISTRATION: Clinicaltrials.gov number NCT02092727 . Registered 13 Mar 2014 (retrospectively registered). PMID- 29334902 TI - Expression characterization of the herbicide tolerance gene Aryloxyalkanoate Dioxygenase (aad-1) controlled by seven combinations of regulatory elements. AB - BACKGROUND: Availability of well characterized maize regulatory elements for gene expression in a variety of tissues and developmental stages provides effective alternatives for single and multigene transgenic concepts. We studied the expression of the herbicide tolerance gene aryloxyalkanoate dioxygenase (aad-1) driven by seven different regulatory element construct designs including the ubiquitin promoters of maize and rice, the actin promoters of melon and rice, three different versions of the Sugarcane Bacilliform Badnavirus promoters in association with other regulatory elements of gene expression. RESULTS: Gene expression of aad-1 was characterized at the transcript and protein levels in a collection of maize tissues and developmental stages. Protein activity against its target herbicide was characterized by herbicide dosage response. Although differences in transcript and protein accumulation were observed among the different constructs tested, all events were tolerant to commercially relevant rates of quizalafop-P-ethyl compared to non-traited maize under greenhouse conditions. DISCUSSION: The data reported demonstrate how different regulatory elements affect transcript and protein accumulation and how these molecular characteristics translate into the level of herbicide tolerance. The level of transcript detected did not reflect the amount of protein quantified in a particular tissue since protein accumulation may be influenced not only by levels of transcript produced but also by translation rate, post-translational regulation mechanisms and protein stability. The amount of AAD-1 enzyme produced with all constructs tested showed sufficient enzymatic activity to detoxify the herbicide and prevent most herbicidal damage at field-relevant levels without having a negative effect on plant health. CONCLUSIONS: Distinctive profiles of aad-1 transcript and protein accumulation were observed when different regulatory elements were utilized in the constructs under study. The ZmUbi and the SCBV constructs showed the most consistent robust tolerance, while the melon actin construct provided the lowest level of tolerance compared to the other regulatory elements used in this study. These data provide insights into the effects of differing levels of gene expression and how these molecular characteristics translate into the level of herbicide tolerance. Furthermore, these data provide valuable information to optimize future designs of single and multiple gene constructs for maize research and crop improvement. PMID- 29334901 TI - Monitoring vaccine and non-vaccine HPV type prevalence in the post-vaccination era in women living in the Basilicata region, Italy. AB - BACKGROUND: A large free-of-charge quadrivalent HPV (qHPV) vaccination program, covering four cohorts annually (women 11, 14, 17 and 24 years), has been implemented in Basilicata since 2007. This study evaluated vaccine and non vaccine HPV prevalence 5-7 years post-vaccination program implementation in vaccinated and unvaccinated women. METHODS: This population-based, cross sectional study was conducted in the public screening centers of the Local Health Unit in Matera between 2012 and 2014. Cervical samples were obtained for Pap and HPV testing (HC2, LiPA Extra(r) assay) and participants completed a sociodemographic and behavioral questionnaire. Detailed HPV vaccination status was retrieved from the official HPV vaccine registry. HPV prevalence was described overall, by type and vaccination status. The association between HPV type-detection and risk/protective factors was studied. Direct vaccine protection (qHPV vaccine effectiveness [VE]), cross-protection, and type-replacement were evaluated in cohorts eligible for vaccination, by analyzing HPV prevalence of vaccine and non-vaccine types according to vaccination status. RESULTS: Overall, 2793 women (18-50 years) were included, 1314 of them having been in birth cohorts eligible for the HPV vaccination program (18- to 30-year-old women at enrolment). Among the latter, qHPV vaccine uptake was 59% (at least one dose), with 94% completing the schedule; standardized qHPV type prevalence was 0.6% in vaccinated versus 5.5% in unvaccinated women (P <0.001); adjusted VE against vaccine type infections was 90% (95% CI: 73%-96%) for all fully vaccinated women and 100% (95% CI not calculable) in women vaccinated before sexual debut. No statistically significant difference in overall high-risk HPV, high-risk non-vaccine HPV, or any single non-vaccine type prevalence was observed between vaccinated and unvaccinated women. CONCLUSIONS: These results, conducted in a post-vaccine era, suggest a high qHPV VE and that a well-implemented catch-up vaccination program may be efficient in reducing vaccine-type infections in a real-world setting. No cross-protective effect or evidence of type-replacement was observed a few years after HPV vaccine introduction. PMID- 29334903 TI - A rare case of pericarditis and pleural empyema secondary to transdiaphragmatic extension of pyogenic liver abscess. AB - BACKGROUND: Transdiaphragmatic extension of pyogenic liver abscess is the rarest cause of pericarditis and pleural empyema. It is a rapidly progressive and highly lethal infection with mortality rates reaching 100% if left untreated. However, the transmission route, treatment methods and prognosis have not been well studied. CASE PRESENTATION: A 65-year-old male patient presented with a fever, dyspnea, and right upper quadrant abdominal pain. Computed tomography of the chest and abdomen showed huge liver abscess without full liquefaction in the left lobe, large amount of left pleural effusion, and mild pericardial effusion, and the patient was treated with parenteral antibiotics and pigtail insertion at the left pleura. However, four days later, cardiac tamponade was developed and surgical drainage of the abscess and pericardium was performed. Klebsiella pneumonia was isolated from pleural empyema. Twenty-five days after surgery, the patient was discharged without any complications. CONCLUSIONS: Herein, we report a rare case of pleural empyema and pericarditis in that resulted from the extension of huge pyogenic liver abscess. Early surgical treatment may have prevented progression of the pericarditis to the more dismal purulent pericarditis. We also review pertinent English literature on pericarditis as a complication of PLA. PMID- 29334904 TI - Association of Kidney Disease Quality of Life (KDQOL-36) with mortality and hospitalization in older adults receiving hemodialysis. AB - BACKGROUND: For older adults receiving dialysis, health-related quality of life is not often considered in prognostication of death or future hospitalizations. To determine if routine health-related quality of life measures may be useful for prognostication, the objective of this study is to determine the extent of association of Kidney Disease Quality of Life (KDQOL-36) subscales with adverse outcomes in older adults receiving dialysis. METHODS: This is a longitudinal study of 3500 adults aged >=75 years receiving dialysis in the United States in 2012 and 2013. We used Cox and Fine and Gray models to evaluate the association of KDQOL-36 subscales with risk of death and hospitalization. We adjusted for sociodemographic variables, hemodialysis access type, laboratory values, and Charlson index. RESULTS: Three thousand one hundred thirty-two hemodialysis patients completed the KDQOL-36. From KDQOL-36 completion date in 2012, 880 (28.1%) died and 2023 (64.6%) had at least one hospitalization over a median follow-up of 512 and 203 days, respectively. Cohort members with a SF-12 physical component summary (PCS) in the lowest quintile had an increased adjusted risk of death [hazard ratio (HR), 1.55, 95% confidence interval (CI) 1.19-2.03] and hospitalization (HR, 1.29, 95% CI 1.09-1.54) compared with those with scores in the highest quintile. Cohort members with a SF-12 mental component summary in the lowest quintile had an increased risk of hospitalization (HR, 1.39, 95% CI 1.17 1.65) compared with those in the highest quintile. In adjusted analyses, there was no association between the symptoms of kidney disease, effects of kidney disease, and burden of kidney disease subscales with time to death or first hospitalization. Competing risk models showed similar HRs. CONCLUSIONS: Among the KDQOL-36 subscales, the SF-12 PCS demonstrates the strongest association with both death and future hospitalizations in older adults receiving hemodialysis Further research is needed to assess the value this subscale may add to prognostication. PMID- 29334905 TI - Efficacy comparison of multi-phase CT and hepatotropic contrast-enhanced MRI in the differential diagnosis of focal nodular hyperplasia: a prospective cohort study. AB - BACKGROUND: Different clinical behaviour influences the importance of differentiating focal nodular hyperplasia (FNH) from other focal liver lesions (FLLs). The aim of this study was to compare the efficacy of contrast-enhanced CT and MRI in the diagnosis of FNH. METHODS: 157 patients with equivocal FLLs detected in ultrasonography subsequently underwent multi-phase CT and MRI with the use of hepatotropic contrast agent (Gd-BOPTA) in a 1.5 T scanner. Examinations were evaluated by three independent readers. Diagnostic efficacy of different radiological signs of FNH in both CT and MRI was compared and AFROC analysis was performed. RESULTS: 4 hepatocellular adenomas, 95 hepatocellular carcinomas, 98 hemangiomas, 138 metastases and 45 FNHs were diagnosed. In both CT and MRI the radiological sign of the highest accuracy was the presence of the central scar within FNH (0.93 and 0.96 relatively). The sum of two radiological signs in MRI: homogeneous enhancement in hepatic arterial phase (HAP) and enhancing lesion in hepatobiliary phase (HBP) was characterized with high values of sensitivity (0.89), specificity (0.97), PPV (0.82), NPV (0.98) and accuracy (0.96). After inclusion of clinical data into analysis the best discriminating feature in MRI was the presence of enhancing lesion in HBP in patients without cirrhosis. In this regard, efficacy parameters increased to 1.00, 0.99, 0.94, 1.00 and 0.99 accordingly. The area under the curve in AFROC analysis of MRI performance was significantly larger than of CT (p = 0.0145). CONCLUSION: Gd BOPTA-enhanced MRI is a more effective method in the differential diagnosis of FNH than multi-phase CT. PMID- 29334906 TI - Rationale and design of the CAROLINA(r) - cognition substudy: a randomised controlled trial on cognitive outcomes of linagliptin versus glimepiride in patients with type 2 diabetes mellitus. AB - BACKGROUND: Type 2 diabetes mellitus is associated with cognitive dysfunction and an increased risk of dementia. Linagliptin is a glucose-lowering agent of the dipeptidyl peptidase-IV (DPP-IV) inhibitor class that is of particular interest for the prevention of accelerated cognitive decline, because it may potentially benefit the brain through pleiotropic effects, beyond glucose lowering. This paper presents the design of a study that aims to establish if linagliptin is superior to the sulfonylurea glimepiride in the prevention of accelerated cognitive decline in patients with type 2 diabetes mellitus. METHODS: The cognition substudy is an integral part of the ongoing event-driven, randomised, double blind CARdiOvascular safety of LINAgliptin (CAROLINA(r)) trial, which evaluates the effect of treatment with linagliptin versus glimepiride on cardiovascular outcomes. CAROLINA(r) includes patients with type 2 diabetes mellitus with sub-optimal glycaemic control at elevated cardiovascular risk. The substudy will evaluate patients randomised and treated who have a baseline Mini Mental State Examination (MMSE) score >= 24, documented years of formal education with at least one valid cognitive assessment at baseline and during follow-up. The primary cognitive outcome is the occurrence of accelerated cognitive decline at the end of follow-up. The two treatment groups will be compared by using a logistic regression. Accelerated cognitive decline is defined as a rate of cognitive decline that falls at or below the 16th percentile of decline for the whole cohort on either the MMSE or a combined score of the trail making and verbal fluency test. Potential confounders are taken into account at an individual patient level, using a regression based index. DISCUSSION: Between December 2010 and December 2012, 6042 patients were randomised and treated with either linagliptin (5 mg) or glimepiride (1-4 mg) once daily in CAROLINA(r). Cognitive tests were conducted in nearly 4500 participants at baseline and are scheduled for two subsequent assessments, after 160 weeks of follow-up and end of follow-up. This substudy of the ongoing CAROLINA(r) trial will establish if linagliptin is superior to glimepiride in the prevention of accelerated cognitive decline in patients with type 2 diabetes mellitus. Final results are expected in 2019. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NCT 01243424 . PMID- 29334907 TI - Hemodynamic effects of lateral tilt before and after spinal anesthesia during cesarean delivery: an observational study. AB - BACKGROUND: Post-spinal hypotension is a common maternal complication during cesarean delivery. Aortocaval compression by the gravid uterus has been assumed as a precipitating factor for post-spinal hypotension. The role of left lateral tilting position in improving maternal cardiac output after subarachnoid block (SAB) is unclear. The aim of this work is to investigate the effect of left lateral tilting on maternal hemodynamics after SAB. METHODS: A prospective observational study was conducted including 105 full term pregnant women scheduled for cesarean delivery. Mean arterial pressure, heart rate, cardiac output (measured by electrical cardiometry), stroke volume, and systemic vascular resistance were recorded in three positions (supine, 150, and 300 left lateral positions) before SAB, after SAB, and after delivery of the fetus. RESULTS: Before SAB, no significant hemodynamic changes were reported with left lateral tilting. A significant decrease was reported in mean arterial pressure, cardiac output, stroke volume, and systemic vascular resistance after SAB (in supine position). When performing left lateral tilting, there was an increase in cardiac output, heart rate, and mean arterial pressure. No difference was reported between the two tilt angles (150 and 300). CONCLUSIONS: Changing position of full term pregnant woman after SAB from supine to left lateral tilted position results increased cardiac output and mean arterial pressure. There is no difference between the two tilt angles (150 and 300). TRIAL REGISTRATION: clinicaltrials.gov ( NCT02828176 ) retrospectively registered. PMID- 29334908 TI - Self-reported genital warts among sexually-active university students: a cross sectional study. AB - BACKGROUND: Genital warts are one of the most common forms of sexually transmitted disease, but their epidemiology has yet to be thoroughly elucidated. The present study was designed to shed light on the prevalence of clinically confirmed, self-reported genital warts (GWs) in a representative sample of the university population. METHODS: In 2015, a cross-sectional survey was conducted on 11,096 individuals approached at the Students Information Bureau where they came to enroll for a university degree course. Participants completed an anonymous, self-administered questionnaire providing information on their sociodemographic characteristics, sexual behavior, and any history of clinically diagnosed genital warts. Multivariate logistic regression was then used to identify any factors associated with the disease. RESULTS: Our analysis was conducted on 9259 questionnaires (83.4%). Participants were a mean 21.8 +/- 4.8 years of age, and 59.6% were female. Overall, 124 individuals (1.3%, 95%CI: 1.0 1.6) reported having been diagnosed with genital warts: 48 men (1.3%, 95%CI: 0.9 1.6), and 76 women (1.4% 95%CI: 1.1-1.7). Overall, 22.5% of the sample were vaccinated (1.3% of the males and 36.8% of the females). The group of respondents aged 30 years or more had the highest incidence of genital warts (males: 5.6%, 95%CI: 2.5-8.6; females: 6.9%, 95%CI: 3.4-10.4). The independent risk factors associated with a history of disease were (for both genders) a history of other sexually-transmitted diseases, and >=2 sex partners in the previous 24 months. A protective role emerged for routine condom use. Additional risk factors associated with genital warts in males concerned men who have sex with men, bisexuality vis-a-vis heterosexuality, and smoking. CONCLUSIONS: The findings emerging from our study help to further clarify the epidemiology of genital warts in young people, and may be useful to public health decision-makers. This study showed that genital warts occur in men as well as women, and suggests that both genders should be monitored for this disease to ascertain the effects of the free HPV vaccination offered to all girls in the Veneto in their 12th year of life since 2008, and to all boys of the same age since 2015. PMID- 29334909 TI - Long term unemployment, income, poverty, and social public expenditure, and their relationship with self-perceived health in Spain (2007-2011). AB - BACKGROUND: There is scant research that simultaneously analyzes the joint effects of long-term unemployment, poverty and public expenditure policies on poorer self-perceived health during the financial crisis. The aim of the study is to analyze the joint relationship between long-term unemployment, social deprivation, and regional social public expenditure on one side, and self perceived health in Spain (2007-2011) on the other. METHODS: Longitudinal data were extracted from the Survey on Living Conditions, 2007-2010 and 2008-2011 (9105 individuals and 36,420 observations), which were then used to estimate several random group effects in the constant multilevel logistic longitudinal models (level 1: year; level 2: individual; level 3: region). The dependent variable was self-perceived health. Individual independent interest variables were long and very long term unemployment, available income, severe material deprivation and regional variables were per capita expenditure on essential public services and per capita health care expenditure. RESULTS: All of the estimated models show a robust association between bad perceived health and the variables of interest. When compared to employed individuals, long term unemployment increases the odds of reporting bad health by 22% to 67%; very long term unemployment (24 to 48 months) increases the odds by 54% to 132%. Family income reduces the odds of reporting bad health by 16% to 28% for each additional percentage point in income. Being a member of a household with severe material deprivation increases the odds of perceiving one's health as bad by between 70% and 140%. Regionally, per capita expenditure on essential public services increases the odds of reporting good health, although the effect of this association was limited. CONCLUSIONS: Long and very long term unemployment, available income and poverty were associated to self-perceived bad health in Spain during the financial crisis. Regional expenditure on fundamental public services is also associated to poor self-perceived health, although in a more limited fashion. Results suggest the positive role in health of active employment and redistributing income policies. PMID- 29334910 TI - Treatment selection of early stage non-small cell lung cancer: the role of the patient in clinical decision making. AB - BACKGROUND: The objective of this study is to investigate the role and experience of early stage non-small cell lung cancer (NSCLC) patient in decision making process concerning treatment selection in the current clinical practice. METHODS: Stage I-II NSCLC patients (surgery 55 patients, SBRT 29 patients, median age 68) were included in this prospective study and completed a questionnaire that explored: (1) perceived patient knowledge of the advantages and disadvantages of the treatment options, (2) experience with current clinical decision making, and (3) the information that the patient reported to have received from their treating physician. This was assessed by multiple-choice, 1-5 Likert Scale, and open questions. The Decisional Conflict Scale was used to assess the decisional conflict. Health related quality of life (HRQoL) was measured with SF-36 questionnaire. RESULTS: In 19% of patients, there was self-reported perceived lack of knowledge about the advantages and disadvantages of the treatment options. Seventy-four percent of patients felt that they were sufficiently involved in decision-making by their physician, and 81% found it important to be involved in decision making. Forty percent experienced decisional conflict, and one-in-five patients to such an extent that it made them feel unsure about the decision. Subscores with regard to feeling uninformed and on uncertainty, contributed the most to decisional conflict, as 36% felt uninformed and 17% of patients were not satisfied with their decision. HRQoL was not influenced by patient experience with decision-making or patient preferences for shared decision making. CONCLUSIONS: Dutch early-stage NSCLC patients find it important to be involved in treatment decision making. Yet a substantial proportion experiences decisional conflict and feels uninformed. Better patient information and/or involvement in treatment-decision-making is needed in order to improve patient knowledge and hopefully reduce decisional conflict. PMID- 29334912 TI - Estimating the total prevalence and incidence of end-stage kidney disease among Aboriginal and non-Aboriginal populations in the Northern Territory of Australia, using multiple data sources. AB - BACKGROUND: Most estimates for End Stage Kidney Disease (ESKD) prevalence and incidence are based on renal replacement therapy (RRT) registers. However, not all people with ESKD will commence RRT and estimates based only on RRT registry data will underestimate the true burden of ESKD in the community. This study estimates the total number of Northern Territory (NT) residents with ESKD including: those receiving RRT, those diagnosed but not receiving RRT and an estimate of "undiagnosed" cases. METHODS: Four data sources were used to identify NT residents with a diagnosis of ESKD: public hospital admissions, Australia and New Zealand Dialysis and Transplant Registry registrations, death registrations and, for the Aboriginal population only, electronic primary care records. Three data sources contained information recorded between 1 July 2008 and 31 December 2013, death registration data extended to 31 December 2014 to capture 2013 prevalent cases. A capture-recapture method was used to estimate both diagnosed and undiagnosed cases by making use of probability patterns of overlapping multiple data sources. RESULTS: In 2013, the estimated ESKD prevalence in the NT Aboriginal population was 11.01 (95% confidence interval (CI) 10.24-11.78) per 1000, and 0.90 (95% CI 0.76-1.05) per 1000 in the NT non-Aboriginal population. The age-adjusted rates were 17.97 (95% CI 17.82-18.11) and 1.07 (95% CI 1.05 1.09) per 1000 in the NT Aboriginal and non-Aboriginal populations respectively. The proportion of individuals receiving RRT was 71.4% of Aboriginal and 75.5% of non-Aboriginal prevalent ESKD cases. The age-adjusted ESKD incidence was also greater for the Aboriginal (5.26 (95% CI 4.44-6.08) per 1000 population) than non Aboriginal population (0.36 (95% CI 0.25-0.47) per 1000). CONCLUSION: This study provides comprehensive estimates of the burden of ESKD including those cases that are not identified in relevant health data sources. The results are important for informing strategies to reduce the total burden of ESKD and to manage the potential unmet demand, particularly from comparatively young Aboriginal patients who may be suitable for RRT but do not currently access the services for social, geographic or cultural reasons. PMID- 29334911 TI - Hypocholesterolemia is an independent risk factor for depression disorder and suicide attempt in Northern Mexican population. AB - BACKGROUND: Cholesterol has been associated as a risk factor for cardiovascular disease. Recently, however, there is growing evidence about crucial requirement of neuron membrane cholesterol in the organization and function of the 5-HT1A serotonin receptor. For this, low cholesterol level has been reported to be associated with depression and suicidality. However there have been inconsistent reports about this finding and the exact relationship between these factors remains controversial. Therefore, we investigated the link between serum cholesterol and its fractions with depression disorder and suicide attempt in 467 adult subjects in Mexican mestizo population. METHODS: Plasma levels of total cholesterol, triglycerides, and high-density lipoprotein cholesterol (HDL-c) and low density lipoprotein cholesterol (LDL-c) were determined in 261 MDD patients meeting the DSM-5 criteria for major depressive disorder (MDD), 59 of whom had undergone an episode of suicide attempt, and 206 healthy controls. RESULTS: A significant decrease in total cholesterol, LDL-cholesterol, VLDL-cholesterol and triglyceride serum levels was observed in the groups of MDD patients and suicide attempt compared to those without suicidal behavior (p < 0.05). After adjusting for covariates, lower cholesterol levels were significantly associated with MDD (OR 4.229 CI 95% 2.555 - 7.000, p<.001) and suicide attempt (OR 5.540 CI 95% 2.825 - 10.866, p<.001) CONCLUSIONS: These results support the hypothesis that lower levels of cholesterol are associated with mood disorders like MDD and suicidal behavior. More mechanistic studies are needed to further explain this association. PMID- 29334913 TI - Identifying enablers and barriers to individually tailored prescribing: a survey of healthcare professionals in the UK. AB - BACKGROUND: Many people now take multiple medications on a long-term basis to manage health conditions. Optimising the benefit of such polypharmacy requires tailoring of medicines use to the needs and circumstances of individuals. However, professionals report barriers to achieving this in practice. In this study, we examined health professionals' perceptions of enablers and barriers to delivering individually tailored prescribing. METHODS: Normalisation Process Theory (NPT) informed an on-line survey of health professionals' views of enablers and barriers to implementation of Individually Tailored Prescribing (ITP) of medicines. Links to the survey were sent out through known professional networks using a convenience/snowball sampling approach. Survey questions sought to identify perceptions of supports/barriers for ITP within the four domains of work described by NPT: sense making, engagement, action and monitoring. Analysis followed the framework approach developed in our previous work. RESULTS: Four hundred and nineteen responses were included in the final analysis (67.3% female, 32.7% male; 52.7% nurse prescribers, 19.8% pharmacists and 21.8% GPs). Almost half (44.9%) were experienced practitioners (16+ years in practice); around one third reported already routinely offering ITP to their patients. GPs were the group least likely to recognise this as consistent usual practice. Findings revealed general support for the principles of ITP but significant variation and inconsistency in understanding and implementation in practice. Our findings reveal four key implications for practice: the need to raise understanding of ITP as a legitimate part of professional practice; to prioritise the work of ITP within the range of individual professional activity; to improve the consistency of training and support for interpretive practice; and to review the impact of formal and informal monitoring processes on practice. CONCLUSION: The findings will inform the ongoing development of our new complex intervention (PRIME Prescribing) to support the individual tailoring of medicines needed to address problematic polypharmacy. PMID- 29334914 TI - "Crying without tears" as an early diagnostic sign-post of triple A (Allgrove) syndrome: two case reports. AB - BACKGROUND: Triple A syndrome (or Allgrove syndrome) is a rare autosomal recessive disorder characterized by alacrima, achalasia, adrenal insufficiency and autonomic/neurological abnormalities. The majority of cases are caused by mutations in the AAAS gene located on chromosome 12q13. However, the clinical picture as well as genetic testing may be complex since symptomatology is variable and mutations cannot be identified in all clinically diagnosed patients. We present two unrelated patients with triple-A syndrome illustrating the importance of alacrima as an early clinical sign. CASE PRESENTATION: A 3.5 year old girl presented with repeated hypoglycaemic myoclonic events. Adrenal insufficiency was diagnosed. In addition, alacrima, obvious since early infancy, was incidentally reported by the mother and finally lead to the clinical diagnosis of triple A syndrome. This was confirmed by positive mutation analysis of the AAAS gene. The second patient, an 8 months old boy was presented because of anisocoria and unilateral optic atrophy. MRI revealed cerebellar vermis hypotrophy. Psychomotor retardation, failure to thrive, and frequent vomiting lead to further diagnostic work-up. Achalasia was diagnosed radiologically. In addition, the mother mentioned absence of tears since birth leading to the clinical diagnosis of triple A syndrome. In contrast to the first cases genetic testing was negative. CONCLUSION: These two patients illustrate the heterogeneity of triple A syndrome in both terms, clinical expression and genetic testing. We particularly aim to stress the importance of alacrima, which should be considered as a red flag symptom. Further differential diagnosis is required in every child affected by alacrima. PMID- 29334916 TI - Influence of drought stress on afalfa yields and nutritional composition. AB - BACKGROUND: It is predicted that climate change may increase the risk of local droughts, with severe consequences for agricultural practices. METHODS: Here we report the influence of drought on alfalfa yields and nutritional composition, based on artificially induced drought conditions during two field experiments. Two types of alfalfa cultivars were compared, Gold Queen and Suntory. The severity and timing of drought periods were varied, and the crop was harvested either early during flowering, or late at full bloom. RESULTS: The obtained dry mass yields of Gold Queen were higher than Suntory, and the first was also more resistant to drought. Early harvest resulted in higher yields. Decreases in yields due to water shortage were observed with both cultivars, and the fraction of crude protein (CP) decreased as a result of drought stress; this fraction was higher in Gold Queen than in Suntory and higher in early harvest compared to late harvest. Severe drought late in spring had the highest effect on CP content. The fraction of fibre, split up into neutral detergent fibre (NDF) and acid detergent fibre (ADF) increased as a result of drought and was lower in early compared to late harvested plants. Suntory alfalfa produced higher fibre fractions than Gold Queen. The fraction of water-soluble carbohydrates (WSC) was least affected by drought. It was consistently higher in Gold Queen compared to Suntory alfalfa, and late harvest resulted in higher WSC content. CONCLUSIONS: In combination, these results suggest that the nutritive value of alfalfa will likely decrease after a period of drought. These effects can be partly overcome by choosing the Gold Queen cultivar over Suntory, by targeted irrigation, in particular in late spring, and by harvesting at an earlier time. PMID- 29334915 TI - Monitoring the responsiveness of T and antigen presenting cell compartments in breast cancer patients is useful to predict clinical tumor response to neoadjuvant chemotherapy. AB - BACKGROUND: Vaccination of mice with tumors treated with Doxorubicin promotes a T cell immunity that relies on dendritic cell (DC) activation and is responsible for tumor control in vaccinated animals. Despite Doxorubicin in combination with Cyclophosphamide (A/C) is widely used to treat breast cancer patients, the stimulating effect of A/C on T and APC compartments and its correlation with patient's clinical response remains to be proved. METHODS: In this prospective study, we designed an in vitro system to monitor various immunological readouts in PBMCs obtained from a total of 17 breast cancer patients before, and after neoadjuvant anti-tumor therapy with A/C. RESULTS: The results show that before treatment, T cells and DCs, exhibit a marked unresponsiveness to in vitro stimulus: whereas T cells exhibit poor TCR internalization and limited expression of CD154 in response to anti-CD3/CD28/CD2 stimulation, DCs secrete low levels of IL-12p70 and limited CD83 expression in response to pro-inflammatory cytokines. Notably, after treatment the responsiveness of T and APC compartments was recovered, and furthermore, this recovery correlated with patients' residual cancer burden stage. CONCLUSIONS: Our results let us to argue that the model used here to monitor the T and APC compartments is suitable to survey the recovery of immune surveillance and to predict tumor response during A/C chemotherapy. PMID- 29334917 TI - Obesity and breast cancer outcomes in chemotherapy patients in New Zealand - a population-based cohort study. AB - BACKGROUND: Obesity has been reported as an adverse prognostic factor in breast cancer, but inconsistently, and under-treatment with chemotherapy may occur. We provide the first assessment of obesity and breast cancer outcomes in a population-based, multi-ethnic cohort of New Zealand patients treated with chemotherapy. METHODS: All 3536 women diagnosed with invasive breast cancer in the Waikato region of New Zealand from 2000-2014 were registered and followed until last follow-up in specialist or primary care, death or Dec 2014; median follow-up 4.1 years. For the 1049 patients receiving chemotherapy, mortality from breast cancer, other causes, and all causes, and rates of loco-regional and of distant recurrence, were assessed by body mass index (BMI), recorded after diagnosis, adjusting for other clinico-pathological and demographic factors by Cox regression. RESULTS: BMI was known for 98% (n=1049); 33% were overweight (BMI 25-29.9), 21% were obese (BMI 30-34.9), and 14% were very obese (BMI 35+). There were no significant associations between obesity and survival, after adjustment for demographic and clinical factors (hazard ratios, HR, for very obese compared to BMI 21-24, for breast cancer deaths 0.96 (0.56-1.67), and for all deaths 1.03 (0.63-1.67), respectively, and only small non-significant associations for loco regional or metastatic recurrence rates (HR 1.17 and 1.33 respectively). Subgroup analyses by age, menopausal status, ethnicity, stage, post-surgical radiotherapy, mode of diagnosis, type of surgery, and receptor status, showed no associations. No associations were seen with BMI as a continuous variable. The results in all patients irrespective of treatment but with recorded BMI data (n=2296) showed similar results. CONCLUSIONS: In this population, obesity assessed post-diagnosis had no effect on survival or recurrence, based on 1049 patients with chemotherapy treatment with follow-up up to 14 years. PMID- 29334919 TI - Low birthweight in rural Cameroon: an analysis of a cut-off value. AB - BACKGROUND: Low birthweight (LBW) is a major predictor of early neonatal mortality which disproportionately affects low-income countries. WHO recommends regional definitions for LBW to prevent misclassifications and ensure appropriate care of babies with LBW. We conducted this study to define a clinical cut-off for LBW, and to determine the predictors and adverse foetal outcomes of LBW babies in a rural sub-division in Cameroon. METHODS: We conducted a retrospective register analysis of 1787 singleton deliveries in two health facilities in the Northwest Region of Cameroon. Records with no birthweight or birthweight less than 1000 g, babies born before arrival, multiple deliveries and deliveries before 28 weeks gestation were excluded from this study. The 10th percentile of birthweights was computed to obtain a statistical cut-off value for the LBW. To assess the clinical significance of the newly defined cut-off value, we compared the prevalence of adverse foetal outcomes between LBW (birthweight <10th percentile) and heavier babies (birthweight >=10th percentile) in our study population. RESULTS: The 10th percentile of the birthweights was 2700 g. Preterm delivery was the lone predictor of LBW (aOR = 2.0, 95% CI = 1.3-3.1; p = 0.001). LBW babies were more likely to be stillborn (OR = 9.6; 95% CI = 4.2-21.6; p < 0.001) or asphyxiated at the 5th minute (OR = 2.0; 95% CI = 1.2-3.3; p = 0.006), compared with heavier babies. Also, 6.1% of babies who had a birthweight between 2500 and 2700 g were more likely to be stillborn compared to heavier babies. CONCLUSION: This study suggests that the clinical cut-off for LBW in this rural community is 2700 g; with 6.1% of babies born with LBW probably receiving inadequate care as the traditional cut-off value of 2500 g proposed by WHO is still used to define LBW in our setting. Further studies are necessary to define a national cut-off value for harmonisation of LBW definitions in the country to prevent misclassifications and ensure appropriate neonatal care. PMID- 29334918 TI - Colorectal cancer liver metastases - a population-based study on incidence, management and survival. AB - BACKGROUND: Colorectal cancer (CRC) is a leading cause of cancer-associated deaths with liver metastases developing in 25-30% of those affected. Previous data suggest a survival difference between right- and left-sided liver metastatic CRC, even though left-sided cancer has a higher incidence of liver metastases. The aim of the study was to describe the liver metastatic patterns and survival as a function of the characteristics of the primary tumour and different combinations of metastatic disease. METHODS: A retrospective population-based study was performed on a cohort of patients diagnosed with CRC in the region of Stockholm, Sweden during 2008. Patients were identified through the Swedish National Quality Registry for Colorectal Cancer Treatment (SCRCR) and additional information on intra- and extra-hepatic metastatic pattern and treatment were retrieved from electronic patient records. Patients were followed for 5 years or until death. Factors influencing overall survival (OS) were investigated by means of Cox regression. OS was compared using Kaplan-Meier estimations and the log rank test. RESULTS: Liver metastases were diagnosed in 272/1026 (26.5%) patients within five years of diagnosis of the primary. Liver and lung metastases were more often diagnosed in left-sided colon cancer compared to right-sided cancer (28.4% versus 22.1%, p = 0.029 and 19.7% versus 13.2%, p = 0.010, respectively) but the extent of liver metastases were more extensive for right-sided cancer as compared to left-sided (p = 0.001). Liver metastatic left-sided cancer, including rectal cancer, was associated with a 44% decreased mortality risk compared to right-sided cancer (HR = 0.56, 95% CI: 0.39-0.79) with a 5-year OS of 16.6% versus 4.3% (p < 0.001). In liver metastatic CRC, the presence of lung metastases did not significantly influence OS as assessed by multivariate analysis (HR = 1.11, 95% CI: 0.80-1.53). CONCLUSION: The worse survival in liver metastatic right-sided colon cancer could possibly be explained by the higher number of metastases, as well as more extensive segmental involvement compared with left sided colon and rectal cancer, even though the latter had a higher incidence of liver metastases. Detailed population-based data on the metastatic pattern of CRC and survival could assist in more structured and individualized guidelines for follow-up of patients with CRC. PMID- 29334920 TI - Factors influencing access of pregnant women and their infants to their local healthcare system: a prospective, multi-centre, observational study. AB - BACKGROUND: The successful implementation of maternal vaccination relies on results of clinical trials, considering the prenatal and postnatal attendance at selected healthcare institutions. This study evaluated factors influencing maternal/infant access to healthcare facilities to identify potential barriers to participation in future clinical trials on maternal vaccination. METHODS: In this prospective, multi-centre, observational study, pregnant women (N = 3243) were enrolled at ten sites across Panama, the Dominican Republic, South Africa, and Mozambique between 2012 and 2014. They completed questionnaires at enrolment, delivery, and infant follow-up (90 days post-partum) visits, including questions on transportation, phone accessibility, alternative childcare, gestational age at enrolment, delivery location, and health status of their infant. Logistic regression was used to identify factors significantly associated with return to study site for delivery or infant follow-up visits. RESULTS: Among 3229 enrolled women with delivery information, 63.6% (range across sites: 25.3-91.5%) returned to study site for delivery. Older women and those at later gestational age at enrolment were more likely to deliver at the study site. While heterogeneities were observed at site level, shorter travel time at delivery and increased transportation costs at enrolment were associated with increased likelihood of women returning to study site for delivery. Among 3145 women with live-born infants, 3077 (95.3%) provided 90-day follow-up information; of these, 68.9% (range across sites: 25.6-98.9%) returned to study site for follow-up visits. Women with other children and with lower transportation costs at delivery were more likely to return to study site for follow-up visits. Among 666 infants reported sick, 94.3% were taken to a healthcare facility, with only 41.9% (range across sites: 4.9-77.3%) to the study site. CONCLUSION: Although high retention was observed from enrolment through 90 days after delivery, post-partum surveillance should be broadened beyond the study sites and additional follow-up visits should be planned within the neonatal period. The factors influencing maternal/infant access to healthcare facilities and the issues identified in this study should be taken into consideration in planning future clinical studies on maternal immunisation in low- and middle-income countries. TRIAL REGISTRATION: The study was registered at ClinicalTrial.gov ( NCT01734434 ) on November 22, 2012. PMID- 29334921 TI - A pilot feasibility randomised controlled trial of an adjunct brief social network intervention in opiate substitution treatment services. AB - BACKGROUND: Approximately 3% of people receiving opioid substitution therapy (OST) in the UK manage to achieve abstinence from prescribed and illicit drugs within three years of commencing treatment. Involvement of families and wider social networks in supporting psychological treatment may be an effective strategy in facilitating recovery, and this pilot study aimed to evaluate the impact of a social network-focused intervention for patients receiving OST. METHODS: A two-site, open feasibility trial randomised patients receiving OST for at least 12 months but still reporting illicit opiate use in the past 28 days to one of three treatments: 1) treatment as usual (TAU), 2) Brief Social Behaviour and Network Therapy (B-SBNT) + TAU, or 3) Personal Goal Setting (PGS) + TAU. The two active interventions consisted of 4 sessions. There were 3 aims: 1) test the feasibility of recruiting OST patients to a trial of B-SBNT, and following them up over 12 months; 2) test the feasibility of training clinicians to deliver B SBNT; 3) test whether B-SBNT reduces heroin use 3 and 12 months after treatment, and to explore potential mediating factors. The primary outcome for aim 3 was number of days of heroin use in the past month, and a range of secondary outcome measures were specified in advance (level of drug dependence, mental health, social satisfaction, therapist rapport, treatment satisfaction, social network size and support). RESULTS: A total of 83 participants were randomised, and 70 (84%) were followed-up at 12 months. Fidelity analysis of showed that B-SBNT sessions were clearly distinguishable from PGS and TAU sessions, suggesting it was possible to train clinical staff to an adequate level of competence. No significant differences were found between the 3 intervention arms in the primary or secondary outcome measures. Attendance at psychosocial treatment intervention sessions was low across all three arms (44% overall). CONCLUSIONS: Patients receiving OST can be recruited into a trial of a social network-based intervention, but poor attendance at treatment sessions makes it uncertain whether an adequate dose of treatment was delivered. In order to achieve the benefits of psychosocial interventions, further work is needed to overcome poor engagement. TRIAL REGISTRATION: ISRCTN Trial Registration Number: ISRCTN22608399 . Date of registration: 27/04/2012. Date of first randomisation: 14/08/2012. PMID- 29334922 TI - Relative contribution of various chronic diseases and multi-morbidity to potential disability among Dutch elderly. AB - BACKGROUND: The amount of time spent living with disease greatly influences elderly people's wellbeing, disability and healthcare costs, but differs by disease, age and sex. METHODS: We assessed how various single and combined diseases differentially affect life years spent living with disease in Dutch elderly men and women (65+) over their remaining life course. Multistate life table calculations were applied to age and sex-specific disease prevalence, incidence and death rates for the Netherlands in 2007. We distinguished congestive heart failure, coronary heart disease (CHD), breast and prostate cancer, colon cancer, lung cancer, diabetes, COPD, stroke, dementia and osteoarthritis. RESULTS: Across ages 65, 70, 75, 80 and 85, CHD caused the most time spent living with disease for Dutch men (from 7.6 years at age 65 to 3.7 years at age 85) and osteoarthritis for Dutch women (from 11.7 years at age 65 to 4.8 years at age 85). Of the various co-occurrences of disease, the combination of diabetes and osteoarthritis led to the most time spent living with disease, for both men (from 11.2 years at age 65 to 4.9 -years at age 85) and women (from 14.2 years at age 65 to 6.0 years at age 85). CONCLUSIONS: Specific single and multi-morbid diseases affect men and women differently at different phases in the life course in terms of the time spent living with disease, and consequently, their potential disability. Timely sex and age-specific interventions targeting prevention of the single and combined diseases identified could reduce healthcare costs and increase wellbeing in elderly people. PMID- 29334923 TI - Relationship between corneal biomechanical properties and structural biomarkers in patients with normal-tension glaucoma: a retrospective study. AB - BACKGROUND: We evaluated the relationships between corneal biomechanical properties and structural parameters in patients with newly diagnosed, untreated normal-tension glaucoma (NTG). METHODS: All subjects were evaluated using an Ocular Response Analyzer (ORA) measuring corneal hysteresis (CH) and the corneal resistance factor (CRF). Central corneal thickness (CCT), Goldmann applanation tonometric (GAT) data, axial length, and the spherical equivalent (SE), were also measured. Confocal scanning laser ophthalmoscopy was performed with the aid of a Heidelberg retina tomograph (HRT III). We sought correlations between HRT parameters and different variables including CCT, CH, and the CRF. Multiple linear regression analysis was performed to identify significant associations between corneal biomechanical properties and optic nerve head parameters. RESULTS: We enrolled 95 eyes of 95 NTG patients and 93 eyes of 93 normal subjects. CH and the CRF were significantly lower in more advanced glaucomatous eyes (P = 0.001, P = 0.008, respectively). The rim area, rim volume, linear cup to-disc ratio (LCDR), and mean retinal nerve fiber layer (RNFL) thickness were significantly worse in more advanced glaucomatous eyes (P < 0.001, P < 0.001, P < 0.001, and P = 0.001). CH was directly associated with rim area, rim volume, and mean RNFL thickness (P = 0.012, P = 0.028, and P = 0.043) and inversely associated with LCDR (P = 0.015), after adjusting for age, axial length, CCT, disc area, GAT data, and SE. However, in normal subjects, there were no significant associations between corneal biomechanical properties and HRT parameters. CONCLUSIONS: A lower CH is significantly associated with a smaller rim area and volume, a thinner RNFL, and a larger LCDR, independent of disc size, corneal thickness, intraocular pressure, and age. PMID- 29334924 TI - Longitudinal observation of subretinal fibrosis in Vogt-Koyanagi-Harada disease. AB - BACKGROUND: Subretinal fibrosis (SRF) is a vision-threatening complication of Vogt-Koyanagi-Harada disease (VKH). It has long been recognized as a sequela of chronic inflammation. The developmental process of SRF, however, has not been described. The purpose of this study is to provide longitudinal observations of SRF in VKH. METHODS: Retrospective chart review of 10 VKH patients referred to our group between January 2008 and September 2015 at acute uveitic stage with SRF at presentation or who developed SRF during follow up. RESULTS: Ten patients (6 males and 4 females) with a median age of 39.0 (range, 23 to 58) years old were included. The median disease duration at presentation and median duration of follow up were 25.5 (range 5 to 60) days and 32.5 (range 13 to 61) months respectively. At presentation, all patients except one had been inappropriately treated with glucocorticosteroid (insufficiently dosed or tapered too fast) for longer than 2 weeks. Despite large dose oral glucocorticosteroid (1 mg/kg/d prednisone or equivalent) with slow tapering in combination with at least one immunomodulatory agent (cyclosporin A, cyclophosphamide or azathioprine) after presentation, all patients developed bilateral SRF within the first 4 months of disease course and 7 patients within the first 2 months. In 8 patients, shape change/migration and progressive proliferation/pigmentation of SRF was observed over a period of several months after its formation, and then became quiescent but may further underwent depigmentation or pigmentation. SRF involved macula in 12 eyes (7 patients) and caused treatment resistant macular detachment and severe visual impairment in 6 eyes (4 patients). At the last visit, eyes with macular involvement were more common to had worse final best corrected visual acuity (<=20/50) than those without (9/12 vs. 0/8, p = 0.001). CONCLUSIONS: SRF usually develop early in the disease course in VKH patients who are not adequately controlled; it usually undergoes a highly dynamic process within the subretinal space and may involve the macula and resulted in poor final visual outcome. PMID- 29334925 TI - Implementing blended learning in emergency airway management training: a randomized controlled trial. AB - BACKGROUND: While emergency airway management training is conventionally conducted via face-to-face learning (F2FL) workshops, there are inherent cost, time, place and manpower limitations in running such workshops. Blended learning (BL) refers to the systematic integration of online and face-to-face learning aimed to facilitate complex thinking skills and flexible participation at a reduced financial, time and manpower cost. This study was conducted to evaluate its effectiveness in emergency airway management training. METHODS: A single center prospective randomised controlled trial involving 30 doctors from Sarawak General Hospital, Malaysia was conducted from September 2016 to February 2017 to compare the effectiveness of BL versus F2FL for emergency airway management training. Participants in the BL arm were given a period of 12 days to go through the online materials in a learning management system while those in the F2FL arm attended a-day of face-to-face lectures (8 h). Participants from both arms then attended a day of hands-on session consisting of simulation skills training with airway manikins. Pre- and post-tests in knowledge and practical skills were administered. E-learning experience and the perception towards BL among participants in the BL arm were also assessed. RESULTS: Significant improvements in post-test scores as compared to pre-test scores were noted for participants in both BL and F2FL arms for knowledge, practical, and total scores. The degree of increment between the BL group and the F2FL arms for all categories were not significantly different (total scores: 35 marks, inter-quartile range (IQR) 15.0 41.0 vs. 31 marks, IQR 24.0 - 41.0, p = 0.690; theory scores: 18 marks, IQR 9 - 24 vs. 19 marks, IQR 15 - 20, p = 0.992; practical scores: 11 marks, IQR 5 -18 vs. 10 marks, IQR 9 - 20, p = 0.461 respectively). The overall perception towards BL was positive. CONCLUSIONS: Blended learning is as effective as face-to-face learning for emergency airway management training of junior doctors, suggesting that blended learning may be a feasible alternative to face-to-face learning for such skill training in emergency departments. TRIAL REGISTRATION: Malaysian National Medical Research NMRR-16-696-30190 . Registered 28 April 2016. PMID- 29334926 TI - (R)-alpha-Lipoic acid inhibits fructose-induced myoglobin fructation and the formation of advanced glycation end products (AGEs) in vitro. AB - BACKGROUND: Fructose-mediated protein glycation (fructation) has been linked to an increase in diabetic and cardiovascular complications due to over consumption of high-fructose containing diets in recent times. The objective of the present study is to evaluate the protective effect of (R)-alpha-lipoic acid (ALA) against fructose-induced myoglobin fructation and the formation of advanced glycation end products (AGEs) in vitro. METHODS: The anti-glycation activity of ALA was determined using the formation of AGEs fluorescence intensity, iron released from the heme moiety of myoglobin and the level of fructosamine. The fructation induced myoglobin oxidation was examined using the level of protein carbonyl content and thiol group estimation. RESULTS: The results showed that co incubation of myoglobin (1 mg/mL), fructose (1 M) and ALA (1, 2 and 4 mM) significantly inhibited the formation of AGEs during the 30 day study period. ALA markedly decreased the levels of fructosamine, which is directly associated with the reduction of AGEs formation. Furthermore, ALA significantly reduced free iron release from myoglobin which is attributed to the protection of myoglobin from fructose-induced glycation. The results also demonstrated a significant protective effect of ALA on myoglobin oxidative damages, as seen from decreased protein carbonyl content and increased protein thiols. CONCLUSION: These findings provide new insights into the anti-glycation properties of ALA and emphasize that ALA supplementation is beneficial in the prevention of AGEs-mediated diabetic and cardiovascular complications. PMID- 29334927 TI - Dexmedetomidine prevents acute kidney injury after adult cardiac surgery: a meta analysis of randomized controlled trials. AB - BACKGROUND: Dexmedetomidine has been shown to confer direct renoprotection by stabilizing the sympathetic system, exerting anti-inflammatory effects and attenuating ischemia/reperfusion (I/R) injury in preclinical studies. Results from clinical trials of dexmedetomidine on acute kidney injury (AKI) following adult cardiac surgery are controversial. METHODS: We searched EMBASE, PubMed, and Cochrane CENTRAL databases for randomized controlled trials (RCTs) comparing the renal effect of dexmedetomidine versus placebo or other anesthetic drugs in adult patients undergoing cardiac surgery. The primary outcome was the incidence of AKI. The secondary outcomes were mechanical ventilation (MV) duration, intensive care unit (ICU) stay and hospital length of stay(LOS), and postoperative mortality (in-hospital or within 30 days). RESULTS: Ten trials with a total of 1575 study patients were selected. Compared with controls, dexmedetomidine significantly reduced the incidence of postoperative AKI [68/788 vs 97/787; odds ratio(OR), 0.65; 95% confidence interval (CI), 0.45-0.92; P = 0.02; I2 = 0.0%], and there was no difference between groups in postoperative mortality (4/487 vs 11/483; OR, 0.43; 95% CI, 0.14-1.28; P = 0.13; I2 = 0.0%), MV duration [in days; n = 1229; weighted mean difference(WMD), -0.22; 95% CI, -2.04 to 1.70; P = 0.81], ICU stay (in days; n = 1363; WMD, -0.85; 95% CI, -2.14 to 0.45; P = 0.20), and hospital LOS (in days; n = 878; WMD, -0.24; 95% CI, -0.71 to 0.23; P = 0.32). CONCLUSIONS: Perioperative administration of dexmedetomidine in adult patients undergoing cardiac surgery may reduce the incidence of postoperative AKI. Future trials are needed to determine the dose and timing of dexmedetomidine in improving outcomes, especially in patients with decreased baseline kidney function. PMID- 29334928 TI - Consumption of sweetened-beverages and poverty in Colombia: when access is not an advantage. AB - BACKGROUND: This study characterizes the intake of sweetened beverages and establishes whether economic inequalities in their consumption exists. METHODS: Ecological study. Mixed methods using food frequency questionnaire and inequality indices. Based on the National Nutrition Survey, Colombia, 2010. The sweetened beverage intake of 17,514 subjects in 33 geodemographic units was estimated with a food frequency questionnaire and summarized. The calculation of inequality was based on the monetary poverty. The prevalence (yes/no) and frequency (times/day) of sweetened beverage consumption were estimated. Indices of economic inequality were calculated for both prevalence and frequency. RESULTS: The prevalence of sweetened beverage consumption was between 79.2% (95% CI, 75.7 to 82.8) in adults and 88.5% (95% CI, 85.8 to 91.3) in minors. The frequency of consumption in terms of times/day, was between 0.20 (95% CI, 0.16 to 0.24) in adults and 0.40 (95% CI, 0.33 to 0.46) in minors. The Gini coefficient for the prevalence was close to zero, between 0.04 and 0.08; for the frequency, it was slightly higher, between 0.12 and 0.25. CONCLUSIONS: It was established that there is no economic inequality in the consumption of sweetened beverages. Consumption taxes could be regressive. PMID- 29334929 TI - Chronic kidney disease in sugarcane workers in Cameroon: a cross-sectional study. AB - BACKGROUND: Agricultural workers especially in sugarcane plantations have a high risk of chronic kidney disease (CKD). Little is known about CKD among sugarcane plantation workers in Cameroon. This study sought to evaluate the prevalence and identify factors associated with CKD in sugarcane plantation workers in Cameroon. METHODS: We conducted an analytic cross-sectional study including 204 adult workers at the sugarcane plantation complex in Mbandjock, Cameroon; over 500 m above sea level. Chronic kidney disease (proteinuria as estimated by urine dipstick analysis and/or estimated glomerular filtration rate < 60 ml/min/1.73 m2 persistent after 3 months) was the outcome of interest. Those with abnormal results were seen again after 3 months to confirm the diagnosis. We evaluated the association between CKD and participant age, sex, contract-type, duration of employment, socio-economic status, workspace, exposure to agrochemicals, heavy metals and heat, selected risk factors and co-morbid conditions. RESULTS: The overall prevalence of CKD was 3.4%. The factory workers were the most affected (7%), compared to the field (2.4%) and office workers (0%). 2.9% of the participants had persistent proteinuria, mild in every case, and 0.5% of them had an estimated glomerular filtration rate < 60 ml/min/1.73 m2. Age >= 40 years was an independent predictor of CKD. CONCLUSION: The prevalence of CKD among employees of the Mbandjock sugarcane plantation is low, probably reflecting the preventive measures against heat stress and dehydration in place. PMID- 29334930 TI - Safety and adequacy of percutaneous kidney biopsy performed by nephrology trainees. AB - BACKGROUND: Recently there has been a progressive loss of specialty related skills for nephrologists. Among the skills we find the kidney biopsy that has a central role in diagnosis of renal parenchymal disease. One of the causes might be the belief that the kidney biopsy should be performed only in larger Centers which can rely on the presence of a renal pathologist and on nephrologists with a large experience. This trend may increase in the short term procedural safety but may limit the chance of in training nephrologists to become confident with the technique. METHODS: We evaluated renal biopsies performed from May 2002 to October 2016 in our Hospital, a mid-sized facility to determine whether the occurrence of complications would be comparable to those reported in literature and whether the increase in the number of biopsy performing physicians including nephrology fellows which took place since January 2012, after our Nephrology Unit became academic, would be associated to an increase of complications or a reduction of diagnostic power of renal biopsies. Three hundred thirty seven biopsies were evaluated. Patients underwent ultrasound guided percutaneous renal biopsy using a 14 G core needle loaded on a biopsy gun. Observation lasted for 24 h, we evaluated hemoglobin levels 6 and 24 h and kidney ultrasound 24 h after the biopsy. RESULTS: Complications occurred in 18.7% of patients, of these only 1,2% were major complications. Complications were more common in female (28%) compared to male patients (14,8%) (p = 0.004). We found no correlation between diagnosis, kidney function and complication rates; hypertension was not associated to a higher risk in complications. The increase of biopsy performing personnel was not associated to an increase in complication rates (18,7% both pre and post 2012) or with an increase of major complications (1.2% vs 1,2%). CONCLUSIONS: Kidney biopsy can be safely performed in mid-sized hospitals. Safety and adequacy are guaranteed even if the procedure is performed by a larger number of less experienced nephrologists as long as under tutor supervision, thus kidney biopsy should become an integral part of a nephrology fellow training allowing more widespread diffusion of this technique. PMID- 29334931 TI - In vitro antibacterial and antibiotic modifying activity of crude extract, fractions and 3',4',7-trihydroxyflavone from Myristica fragrans Houtt against MDR Gram-negative enteric bacteria. AB - BACKGROUND: Nutmeg is the seed kernel inside the fruit of Myristica fragrans Houtt. (Myristicaceae). It possesses various pharmacological activities but is used in Cameroon only for its flavor in making cakes. The present study thus aimed to investigate the in vitro antibacterial activity and antibiotic modifying activities of crude seed kernel methanol extract (MFS), fractions (MFSa-e) as well as 3',4',7-trihydroxyflavone from Myristica fragrans against a panel of multi-drug resistant (MDR) Gram-negative bacteria. METHODS: The modified rapid p iodonitrotetrazolium chloride (INT) colorimetric assay was used to determine the Minimal Inhibitory Concentration (MIC) and Minimal Bactericidal Concentration (MBC) on the tested bacteria, as well as those of antibiotics in association with the extract and/or isolated compound. Column chromatography was used for the fractionation and purification of the seed kernel extract whilst the chemical structures of compounds were determined using spectroscopic techniques. RESULTS: Phytochemical investigations lead to the isolation of 3',4',7-trihydroxyflavone from the fraction MFSb. The crude extract showed antibacterial activity with MICs ranging from 32 to 1024 MUg/mL on the majority of the 29 tested Gram-negative bacterial strains. Fraction MFSb inhibited the growth of 100% (29/29) of the tested bacterial strains, as well as the compound 3',4',7-trihydroxyflavone (12/12) with a MIC values ranging from 32 to 1024 MUg/mL, and 4 to 128 MUg/mL respectively. The lowest MIC value (4 MUg/mL) was recorded with 3',4',7 trihydroxyflavone against Providencia stuartii ATCC299645 as well as the best MBC value (16 MUg/mL) against the same strain. In the presence of Phenylalanine Arginine-beta-Naphthylamide (PAbetaN), an efflux pumps inhibitor, the activity of the extract increased on 73.33% (11/15) meanwhile that of 3',4',7 trihydroxyflavone increased on 100% tested bacteria. The compound 3',4',7 trihydroxyflavone potentiated the activity of antibiotics in the majority of the tested bacterial strains. CONCLUSION: The results of the present work provide additional information on the use of nutmeg and it major antibacterial component, 3',4',7-trihydroxyflavone, as a potential drug in the treatment of bacterial infections including multidrug resistant phenotypes. PMID- 29334932 TI - Anemia in people on second line antiretroviral treatment in Lilongwe, Malawi: a cross-sectional study. AB - BACKGROUND: Anemia is common among people living with HIV infection and is frequently associated with poor quality of life and poor prognosis. It has been well described in antiretroviral naive individuals and those on non-nucleoside reverse transcriptase inhibitor-based first line antiretroviral therapy (ART) regimens. However there is limited information on anemia for ART experienced individuals on protease inhibitor-based second line ART regimens in resource limited settings. Our objective was to describe the prevalence and risk factors of anemia in this ART experienced population in Malawi. METHODS: We conducted a cross-sectional study using routine facility data at two HIV clinics in Lilongwe, Malawi. The analysis included individuals receiving protease inhibitor-based second line ART. Clinical and laboratory data were collected at routine clinic visits. We used descriptive statistics, two-sample t-tests and multivariate logistic regression for data analysis. RESULTS: Three hundred seventy-seven records were included in this analysis (37% male, median age 41 years, median CD4 count 415 cells/MUL). The prevalence of anemia was 125/377 (33.2%) - mild, moderate and severe anemia was 17.5%, 13.8%, and 1.9% respectively. Female participants had a higher prevalence than male participants (43.6% vs. 15.7%, p < 0.001). In multivariate logistic regression, female sex (adjusted odds ratio (aOR) 5.3; 95% CI 2.9-9.5) and a CD4 count <200 cell/ul (aOR 3.1; 95%CI 1.6-6.0) were associated with increased risk of having anemia while a BMI >=30 kg/m2 (aOR 0.8; 95% CI 0.6-1.0) and being on ART for more than 10 years (aOR 0.4; 95% CI 0.2 0.9) were associated with reduced risk of anemia. Being on a zidovudine- containing ART regimen was not associated with anemia. CONCLUSION: Anemia is common in people on second line ART in Lilongwe, Malawi. Screening for anemia in this population would be a useful strategy; especially for female patients, those who are underweight and have a low CD4 cell counts. PMID- 29334933 TI - Temporary exclusion of ill children from childcare centres in Switzerland: practice, problems and potential solutions. AB - BACKGROUND: In childcare centres, temporary exclusion of ill children, if their illness poses a risk of spread of harmful diseases to others, is a central approach to fight disease transmission. However, not all ill children need to be excluded. Previous studies suggested that childcare centre staff have difficulties in deciding whether or not to exclude an ill child, even when official ill-child guidelines are used. We aimed to describe, quantify and analyse these ambiguities and discuss potential solutions. METHODS: For this cross-sectional study, we sent postal surveys to 488 childcare centre directors in the Swiss Canton of Zurich, where no official ill-child guideline is in place. We asked for exclusion criteria for ill children and ambiguities faced when dealing with ill children. We checked whether existing guidelines provided solutions to the ambiguities identified. RESULTS: 249/488 (51%) directors responded to the survey. The most common exclusion criteria were fever (87.4%) and contagiousness (52.2%). Ambiguities were mostly caused by conjunctivitis (23.7%) and use of antipyretic drugs (22.9%). Roughly one third of the ambiguities identified could have been resolved with existing guidelines, another third if existing guidelines contained additional information. For the last third, clear written directives are difficult to formulate. CONCLUSIONS: Written recommendations may help to clarify when an ill child should temporarily be excluded. However, such a guideline should cover the topics antipyretic drugs and teething and have room for modification to local circumstances. Collaboration with a paediatrician may be of additional benefit. PMID- 29334934 TI - Factors influencing the length of hospital stay of patients with anorexia nervosa - results of a prospective multi-center study. AB - BACKGROUND: The length of stay (LOS) strongly influences anorexia nervosa (AN) inpatient weight outcomes. Hence, understanding the predictors of LOS is highly relevant. However, the existing evidence is inconsistent and to draw conclusions, additional evidence is required. METHODS: We conducted a prospective, multi center study including adult female inpatients with AN. Using stepwise linear regression, the following demographic and clinical variables were examined as potential predictors for LOS: admission BMI, AN-subtype, age, age of onset, living situation, partnership status, education, previous hospitalization, self rated depression, anxiety and somatic symptoms (PHQ-9, PHQ-15, GAD-7), self-rated therapy motivation (FEVER) and eating disorder psychopathology (EDI-2 subscale scores). RESULTS: The average LOS of the sample (n = 176) was 11.8 weeks (SD = 5.2). Longer LOS was associated with lower admission BMI (beta = -1.66; p < .001), purging AN-subtype (beta = 1.91; p = .013) and higher EDI-2 asceticism (beta = 0.12; p = .030). Furthermore, differences between treatment sites were evident. CONCLUSIONS: BMI at admission and AN-subtype are routinely assessed variables, which are robust and clinically meaningful predictors of LOS. Health care policies might consider these variables. In light of the differences between treatment sites future research on geographical variations in mental health care seems recommended. PMID- 29334935 TI - Adoption and diffusion of zoning bylaws banning fast food drive-through services across Canadian municipalities. AB - BACKGROUND: Healthy public policy is an important tool for creating environments that support human health and wellbeing. At the local level, municipal policies, such as zoning bylaws, provide an opportunity for governments to regulate building location and the type of services offered. Across North America, there has been a recent proliferation of municipal bylaws banning fast food drive through services. Research on the utilization of this policy strategy, including bylaw adopters and adopter characteristics, is limited within the Canadian context. The aim of this study was to identify and characterize Canadian municipalities based on level of policy innovation and nature of their adopted bylaw banning fast food drive-through services. METHODS: A multiple case history methodology was utilized to identify and analyse eligible municipal bylaws, and included development of a chronological timeline and map of adopter municipalities within Canada. Grey literature and policy databases were searched for potential adopters of municipal fast food drive-through service bylaws. Adopters were confirmed through evidence of current municipal bylaws. Geographic diffusion and diffusion of innovations theories provided a contextual framework for analysis of bylaw documents. Analysis included assignment of adopter-types, extent and purpose of bans, and policy learning activities of each adopter municipality. RESULTS: From 2002 to 2016, 27 municipalities were identified as adopters: six innovators and twenty-one early adopters. Mapping revealed parallel geographic diffusion patterns in western and eastern Canada. Twenty-two municipalities adopted a partial ban and five adopted a full ban. Rationales for the drive-through bans included health promotion, environmental concerns from idling, community character and aesthetics, traffic concerns, and walkability. Policy learning, including research and consultation with other municipalities, was performed by nine early adopters. CONCLUSION: This study detailed the adoption of fast food drive-through bylaws across Canada. Understanding the adopter-type characteristics of municipalities and the nature of their bylaws can assist other jurisdictions in similar policy efforts. While the implications for research and practice are evolving and dynamic, fast food drive-through service bans may play a role in promoting healthier food environments. Further research is required to determine the viability of this strategy for health promotion and chronic disease prevention. PMID- 29334936 TI - Gender-based violence screening methods preferred by women visiting a public hospital in Pune, India. AB - BACKGROUND: Gender-based violence (GBV) is a major global public health concern and is a risk factor for adverse health outcomes. Early identification of GBV is crucial for improved health outcomes. Interactions with health care providers may provide a unique opportunity for routine GBV screening, if a safe, confidential environment can be established. METHODS: Between November 2014 and February 2015, a cross-sectional, observational study was conducted where women were interviewed about their opinions concerning GBV screening in a tertiary health care setting in Pune, India. Trained counsellors interviewed 300 women at different out patient and in-patient departments using a semi-structured questionnaire. RESULTS: Twenty-three percent of these women reported experiencing GBV in their life. However, 90% of women said they had never been asked about GBV in a health care setting. Seventy-two percent expressed willingness to be asked about GBV by their health care providers, with the preferred provider being nurses or counsellors. More than half (53%) women reported face-to-face interview as the most preferred method for screening. There were no major differences in these preferences by GBV history status. CONCLUSIONS: Our study provides evidence for preferred GBV screening methods and optimal provider engagement as perceived by women attending a public hospital. PMID- 29334937 TI - Perspectives on setting limits for RF contact currents: a commentary. AB - BACKGROUND: Limits for exposure to radiofrequency (RF) contact currents are specified in the two dominant RF safety standards and guidelines developed by the Institute of Electrical and Electronics Engineers (IEEE) and the International Commission on Non-Ionizing Radiation Protection (ICNIRP). These limits are intended to prevent RF burns when contacting RF energized objects caused by high local tissue current densities. We explain what contact currents are and review some history of the relevant limits with an emphasis on so-called "touch" contacts, i.e., contact between a person and a contact current source during touch via a very small contact area. RESULTS: Contact current limits were originally set on the basis of controlling the specific absorption rate resulting from the current flowing through regions of small conductive cross section within the body, such as the wrist or ankle. More recently, contact currents have been based on thresholds of perceived heating. In the latest standard from the IEEE developed for NATO, contact currents have been based on two research studies in which thresholds for perception of thermal warmth or thermal pain have been measured. Importantly, these studies maximized conductive contact between the subject and the contact current source. This factor was found to dominate the response to heating wherein high resistance contact, such as from dry skin, can result in local heating many times that from a highly conductive contact. Other factors such as electrode size and shape, frequency of the current and the physical force associated with contact are found to introduce uncertainty in threshold values when comparing data across multiple studies. CONCLUSIONS: Relying on studies in which the contact current is minimized for a given threshold does not result in conservative protection limits. Future efforts to develop limits on contact currents should include consideration of (1) the basis for the limits (perception, pain, tissue damage); (2) understanding of the practical conditions of real world exposure for contact currents such as contact resistance, size and shape of the contact electrode and applied force at the point of contact; (3) consistency of how contact currents are applied in research studies across different researchers; (4) effects of frequency. PMID- 29334938 TI - Therapeutic plasma exchange in a tertiary care center: 185 patients undergoing 912 treatments - a one-year retrospective analysis. AB - BACKGROUND: Therapeutic plasma exchange (TPE) is increasingly used throughout the world. Although the procedure itself is fairly standardized, it is yet unknown how the underlying disease entities influence the key coordinates of the treatment. METHODS: Retrospective chart review. The treatment indications were clustered into four categories. Data are presented as median and interquartile (25-75%) range [IQR]. RESULTS: Within 1 year, 912 TPE treatments were performed in 185 patients (90 female, 48.6%). The distribution of the treatment numbers to the pre-specified disease categories were as follows: transplantation (35.7%), neurology (31.9%), vasculitis and immunological disease (17.3%), and others including thrombotic microangiopathy (8.1%), critical care related diseases (5.4%), hematology [multiple myeloma] (1.1%), and endocrine disorders (0.5%). The calculated plasma volume was significantly higher in patients with vasculitis and immunological diseases (3984 [3433-4439] ml) as compared to patients treated for transplant related indications (3194 [2545-3658] ml; p = 0.0003) and neurological diseases (3058 [2533-3359] ml; p < 0.0001). This was mainly due to the differences in the hematocrit which was 30.5 [27.0-33.6] % in the vasculitis/immunological disease patients and 40.2 [37.5-42.9] % in the neurological patients; p < 0.0001. Interestingly, treatment time using a membrane based technology was significantly longer than TPE using a centrifugal device 135.0 [125.0-140.0] min vs. 120.0 [112.5-135.0] min. Furthermore, the relative exchanged plasma volume was significantly lower in the treatment of vasculitis and immunological diseases as compared to treatments of transplant related indications and neurological diseases. CONCLUSION: Patients with low hematocrit and high body weight do not receive the minimum recommended dose of exchange volume. Centrifugal TPE allowed faster plasma exchange than membrane TPE. PMID- 29334939 TI - Choosing a career in oncology: results of a nationwide cross-sectional study. AB - BACKGROUND: Little information is currently available concerning young medical students desire to pursue a career in oncology, or their career expectations. METHODS: This project is a cross-sectional epidemiological study. A voluntary and anonymous questionnaire was distributed to all young oncologists studying in France between the 2nd of October 2013 and the 23rd of February 2014. RESULTS: The overall response rate was 75.6%. A total of 505 young oncologists completed the questionnaire. The main determining factors in the decision to practice oncology were the cross-sectional nature of the field (70.8%), the depth and variety of human relations (56.3%) and the multi-disciplinary field of work (50.2%). Most residents would like to complete a rotation outside of their assigned region (59.2%) or abroad (70.2%) in order to acquire additional expertise (67.7%). In addition, most interns would like to undertake a fellowship involving care, teaching and research in order to hone their skills (85.7%) and forge a career in public hospitals (46.4%). Career prospects mainly involve salaried positions in public hospitals. Many young oncologists are concerned about their professional future, due to the shortage of openings (40.8%), the workload (52.8%) and the lack of work-life balance (33.4%). CONCLUSIONS: This investigation provides a comprehensive profile of the reasons young oncologists chose to pursue a career in oncology, and their career prospects. PMID- 29334940 TI - Correction to: The transcriptome landscape of early maize meiosis. AB - CORRECTION: Following publication of the original article [1], the authors reported that the number of genes overlaying the bar graph in Fig. 3A were incorrectly counted and inserted (i.e. including a title tile, and in inverse order). The corrected numbers are below and match with the listed genes supplied in Additional File: Table S2. PMID- 29334941 TI - The association of the N-terminal pro-brain-type natriuretic peptide response to exercise with disease severity in therapy-naive pulmonary arterial hypertension: a cohort study. AB - BACKGROUND: While the N-terminal pro-brain-type natriuretic peptide (NT-proBNP) at rest is known to be associated with prognosis in pulmonary arterial hypertension (PAH), it is unclear if the NT-proBNP response to exercise (DeltaNT proBNP) can contribute to a better assessment of disease severity. METHODS: We investigated the association of NT-proBNP values at rest and during peak exercise with hemodynamics and cardiopulmonary exercise testing parameters in 63 therapy naive PAH patients. RESULTS: The median NT-proBNP increases from 1414 at rest to 1500 pg/ml at peak exercise. The DeltaNT-proBNP is baseline-dependent in PAH. Both, NT-proBNP at rest and NT-proBNP at peak exercise, are significantly correlated with hemodynamics and functional capacity. However, neither NT-proBNP at peak exercise nor DeltaNT-proBNP correlated better with surrogate markers of disease severity than NT-proBNP at rest. CONCLUSION: The DeltaNT-proBNP does not contribute to a better assessment of disease severity in PAH. PMID- 29334942 TI - Poor response to artesunate treatment in two patients with severe malaria on the Thai-Myanmar border. AB - BACKGROUND: Malaria has declined dramatically along the Thai-Myanmar border in recent years due to malaria control and elimination programmes. However, at the same time, artemisinin resistance has spread, raising concerns about the efficacy of parenteral artesunate for the treatment of severe malaria. CASE PRESENTATION: In November 2015 and April 2017, two patients were treated for severe malaria with parenteral artesunate. Quinine was added within 24 h due to an initial poor response to treatment. The first patient died within 24 h of starting treatment and the second did not clear his peripheral parasitaemia until 11 days later. Genotyping revealed artemisinin resistance Kelch-13 markers. CONCLUSIONS: Reliable efficacy of artesunate for the treatment of severe malaria may no longer be assured in areas where artemisinin resistance has emerged. Empirical addition of parenteral quinine to artesunate for treatment is recommended as a precautionary measure. PMID- 29334943 TI - Training programmes to improve evidence uptake and utilisation by physiotherapists: a systematic scoping review. AB - BACKGROUND: Research training programmes are a knowledge translation (KT) intervention which aim to improve research evidence uptake by clinicians. Whilst KT training programmes have been reported to significantly improve evidence uptake by physiotherapists, it is unclear which aspects of training optimally assist KT into physiotherapy practice. The purpose of the review was to establish the body of evidence regarding KT training programmes to improve physiotherapists' use of evidence-based practice (EBP) and clinical practice guidelines (CPG). METHODS: A systematic scoping review was undertaken in line with the adapted Arksey and O'Malley framework. Nine electronic databases (CINAHL, BIOMED CENTRAL, Cochrane, Web of Science, PROQUEST, PUBMED, OTseeker, Scopus, ERIC) were searched. Targeted keywords identified primary research articles of any hierarchy, that described the nature and impact of KT training programmes for physiotherapists. Where systematic reviews were identified, the component primary studies were considered individually for relevance. Critical appraisal was not undertaken due to the nature of a scoping review, and data was reported descriptively. RESULTS: Ten systematic reviews were identified (yielding four relevant primary studies). Five additional primary studies were identified (two randomised controlled trials, two non-randomised controlled trials and one pre-post study) which were not included in the original systematic reviews. This provided nine eligible primary research studies for review. The KT strategies were all multi-faceted. Interactive sessions, didactic sessions, printed material and discussion and feedback were consistently associated with effective outcomes. When KT strategies addressed local barriers to EBP utilisation, there were better success rates for EBP and CPG uptake, irrespective of the outcome measures used. There were no consistent ways of measuring outcome. CONCLUSION: Multi-faceted KT strategies designed to address local barriers to knowledge translation were most effective in improving EBP/ CPG uptake among physiotherapists. PMID- 29334944 TI - Changes in malaria epidemiology in Germany, 2001-2016: a time series analysis. AB - BACKGROUND: German surveillance data showed a sharp rise of malaria cases in 2014 and 2015 due to the increased arrival of refugees from malaria endemic countries. A time series analysis of data from 2001 to 2016 was performed in order to describe the epidemiology of imported malaria in Germany in general and of the recent increase in particular. RESULTS: In total, 11,678 malaria cases were notified between 2001 and 2016 (range 526-1063 cases/year). Newly arriving refugees averaged 10 cases/year (1.5%) in 2001-13 and 292.5 cases/year (28.3%) in 2014-15. Plasmodium (P.) falciparum was the most frequently reported species (range 57.2-85.8%), followed by P. vivax (range during 2001-2013: 7.6-18.1%; during 2014-2015, mean 31.3%). In 2014-15, 22.3% of all P. vivax cases were refugees from Eritrea and 3.3% from other countries of the Horn of Africa; in 2015 and 2016, 19.5% were refugees from Afghanistan and Pakistan. Five P. knowlesi malaria infections were reportedly acquired in Thailand between 2012 and 2016. Total numbers of malaria notifications among native Germans and residents with migration background showed an increasing trend since 2007. Chemoprophylaxis use was reported for 24.3% (1695/6984) of cases and showed a declining trend. Native German cases took significantly more frequently chemoprophylaxis than cases with migration background (32.6% vs. 17.9%; p < 0.001). DISCUSSION/CONCLUSIONS: The steep rise in vivax malaria notifications in 2014 and 2015 was mainly due to newly arriving refugees from Eritrea but also from other countries of the Horn of Africa and South Asia. Clinicians should include malaria in their differential diagnosis in case of a febrile illness in the respective population and consider vivax malaria even if arrival to Germany dates back several months. Over the past 10 years, malaria notifications among native Germans and residents with migration background showed an increasing trend. Use of chemoprophylaxis was insufficient in both groups and deteriorating. New strategies need to be found to increase compliance to chemoprophylaxis recommendations. The surveillance provides valuable data for epidemiological assessment of imported malaria in Germany. PMID- 29334946 TI - Surmounting difficulties to provide home based neonatal care - reflections of community health workers. AB - BACKGROUND: In India, community health workers' (CHW) effectiveness in providing home-based neonatal care (HBNC) has been well documented. The nature of challenges faced and strategies adopted while providing HBNC services need to be studied in-depth. METHODS: A qualitative study to understand the challenges faced and strategies used by Sakhis (women CHW) while providing services as part of a HBNC program implemented by a non-profit organization. Data consisted of 20 in depth interviews and three focus group discussions (FGD) with Sakhis. RESULTS: Sakhis negotiated with the community to start working as a CHW. They faced challenges while changing behaviors at individual level and also while bringing about a change in harmful normative practices that increased chances of maternal and neonatal mortality. Managing crises at the time of deliveries and facilitating a safe delivery was the most critical challenge faced by many Sakhis. The key strategies used by Sakhis included: proactively and persistently providing services even when they faced resistance from the woman or her family; evolving contextually suitable counseling techniques and tactics to bring about behavioral change; balancing compliance to traditional practices and promoting HBNC; defying traditional practices and assisting the woman in times of an emergency to save lives. Having on-call support from supervisors and cultivating a good working relationship with health providers facilitated effective service provision by Sakhis. CONCLUSION: CHWs having a strong sense of commitment can develop strategies to address challenges and provide HBNC services effectively if they also have strong supervisory support. PMID- 29334945 TI - Blood pressure change does not associate with Center of Pressure movement after postural transition in geriatric outpatients. AB - BACKGROUND: Orthostatic hypotension (OH), a blood pressure drop after postural change, is associated with impaired standing balance and falls in older adults. This study aimed to assess the association between blood pressure (BP) and a measure of quality of standing balance, i.e. Center of Pressure (CoP) movement, after postural change from supine to standing position in geriatric outpatients, and to compare CoP movement between patients with and without OH. METHODS: In a random subgroup of 75 consecutive patients who were referred to a geriatric outpatient clinic, intermittent BP measurements were obtained simultaneously with CoP measurements in mediolateral and anterior-posterior direction directly after postural change during 3 min of quiet stance with eyes open on a force plate. Additional measurements of continuous BP were available in n = 38 patients. Associations between BP change during postural change and CoP movement were analyzed using Spearman correlation. Mann-Whitney-U tests were used to compare CoP movement between patients with OH and without OH, in which OH was defined as a BP drop exceeding 20 mmHg of systolic BP (SBP) and/or 10 mmHg of diastolic BP (DBP) within 3 min after postural change. RESULTS: OH measured intermittently was found in 8 out of 75 (11%) and OH measured continuously in 22 out of 38 patients (57.9%). BP change did not associate with CoP movement. CoP movement did not differ significantly between patients with and without OH. CONCLUSIONS: Results do not underpin the added value of CoP movement measurements in diagnosing OH in a clinical setting. Neither could we identify the role of CoP measurements in the understanding of the relation between OH and impaired standing balance. PMID- 29334948 TI - Molecular identification and investigations of contagious ecthyma (Orf virus) in small ruminants, North west Ethiopia. AB - BACKGROUND: Orf virus, the prototype of parapoxvirus, is the main causative agent of contagious ecthyma. Little is known about the status of the disease in Ethiopia and this study was aimed at determining its status using PCR as a confirmatory tool. METHODS: a total of 400 randomly selected sheep and goat was screened for the identification of the virus using amplification of B2L gene and transfection of mammalian cells (VERO cells). RESULTS: Out of 400 animals screened for infection of the virus, 48 animals were found positive to PCR and revealed an overall incidence of 12%. Different epidemiological parameters were considered to look at the association with incidence of the disease and of which, only species of the animal(sheep), non-vaccinated and non-treated animals, nursing animals, poor body condition animals, extensively managed animals, animals having mouth lesion, and study areas having outbreak history showed higher prevalence. A univariate logistic regression analysis showed statistically significant difference in all variables (P < 0.05). Whereas, age and sex of animals showed no significant difference (P < 0.05). CONCLUSION: The result of the present finding showed high incidence of Orf virus in the region as confirmed through PCR. PMID- 29334947 TI - Effects of hypoxia and hyperoxia on the differential expression of VEGF-A isoforms and receptors in Idiopathic Pulmonary Fibrosis (IPF). AB - Dysregulation of VEGF-A bioavailability has been implicated in the development of lung injury/fibrosis, exemplified by Idiopathic Pulmonary Fibrosis (IPF). VEGF-A is a target of the hypoxic response via its translational regulation by HIF 1alpha. The role of hypoxia and hyperoxia in the development and progression of IPF has not been explored. In normal lung (NF) and IPF-derived fibroblasts (FF) VEGF-Axxxa protein expression was upregulated by hypoxia, mediated through activation of VEGF-Axxxa gene transcription. VEGF-A receptors and co-receptors were differentially expressed by hypoxia and hyperoxia. Our data supports a potential role for hypoxia, hyperoxia and VEGF-Axxxa isoforms as drivers of fibrogenesis. PMID- 29334949 TI - Flaxseed-enriched diets change milk concentration of the antimicrobial danofloxacin in sheep. AB - BACKGROUND: Flaxseed is the most common and rich dietary source of lignans and is an acceptable supply of energy for livestock. Flaxseed lignans are precursors of enterolignans, mainly enterolactone and enterodiol, produced by the rumen and intestinal microbiota of mammals and have many important biological properties as phytoestrogens. Potential food-drug interactions involving flaxseed may be relevant for veterinary therapy, and for the quality and safety of milk and dairy products. Our aim was to investigate a potential food-drug interaction involving flaxseed, to explore whether the inclusion of flaxseed in sheep diet affects concentration of the antimicrobial danofloxacin in milk. RESULTS: Increased concentrations of enterodiol and enterolactone were observed in sheep plasma and milk after 2 weeks of flaxseed supplementation (P < 0.05). However, enterolactone and enterodiol conjugates were not detected in milk. Milk danofloxacin pharmacokinetics showed that area under the curve (AUC)0-24, maximum concentration (Cmax) and AUC0-24 milk-to-plasma ratios were reduced by 25-30% in sheep fed flaxseed-enriched diets (P < 0.05). Our results demonstrate, therefore, that flaxseed-enriched diets reduce the amount of danofloxacin in sheep milk and enrich the milk content of lignan-derivatives. CONCLUSION: These findings highlight an effect of flaxseed-enriched diets on the concentration of antimicrobials in ruminant's milk, revealing the potential of these modified diets for the control of residues of antimicrobial drugs in milk. PMID- 29334950 TI - Will human influences on evolutionary dynamics in the wild pervade the Anthropocene? AB - The five most pervasive anthropogenic threats to biodiversity are over exploitation, habitat changes, climate change, invasive species, and pollution. Since all of these threats can affect intraspecific biodiversity-including genetic variation within populations-humans have the potential to induce contemporary microevolution in wild populations. We highlight recent empirical studies that have explored the effects of these anthropogenic threats to intraspecific biodiversity in the wild. We conclude that it is critical that we move towards a predictive framework that integrates a better understanding of contemporary microevolution to multiple threats to forecast the fate of natural populations in a changing world. PMID- 29334951 TI - The surprising implications of familial association in disease risk. AB - BACKGROUND: A wide range of diseases show some degree of clustering in families; family history is therefore an important aspect for clinicians when making risk predictions. Familial aggregation is often quantified in terms of a familial relative risk (FRR), and although at first glance this measure may seem simple and intuitive as an average risk prediction, its implications are not straightforward. METHODS: We use two statistical models for the distribution of disease risk in a population: a dichotomous risk model that gives an intuitive understanding of the implication of a given FRR, and a continuous risk model that facilitates a more detailed computation of the inequalities in disease risk. Published estimates of FRRs are used to produce Lorenz curves and Gini indices that quantifies the inequalities in risk for a range of diseases. RESULTS: We demonstrate that even a moderate familial association in disease risk implies a very large difference in risk between individuals in the population. We give examples of diseases for which this is likely to be true, and we further demonstrate the relationship between the point estimates of FRRs and the distribution of risk in the population. CONCLUSIONS: The variation in risk for several severe diseases may be larger than the variation in income in many countries. The implications of familial risk estimates should be recognized by epidemiologists and clinicians. PMID- 29334952 TI - Predictors of overweight/obesity in a Brazilian cohort after 13 years of follow up. AB - BACKGROUND: Obesity is a chronic complex disease with an increasing prevalence around the world. Prospective studies in adult cohorts are needed to provide information about predictors of new-onset overweight/obesity on population-based levels. The aim of this study was to identify factors associated with the risk of an adult individual become overweight/obese after 13 years of follow-up. METHODS: Second phase of an observational population-based prospective cohort study in a small town in the Midwest region of Brazil. A representative sample of the adult population (>=18 years) was assessed in 2002 (phase 1). Anthropometric, sociodemographic, dietary intake and lifestyle data were collected. After 13 years of follow-up (2015), the same variables were re-evaluated (phase 2). New onset overweight/obesity was the outcome variable. RESULTS: A total of 685 subjects were included with a mean age in phase 1 of 42.7 +/- 13.8 years and 56.1 +/- 13.8 years in phase 2, the mean follow-up time was 13.2 years and female sex counted for 66.3% of the sample. Total weight gain was 5.9 +/- 10.2 Kg, body mass index increased 2.6 +/- 3.8 Kg/m2 and waist circumference (WC) values increased 8.0 +/- 10.5 cm. The prevalence of overweight/obesity went from 49.1% in phase 1 to 69.8% in phase 2 (p < 0.001). The factors associated with a decreased risk of new-onset overweight/obesity were ages between 50 and 64 (RR 0.40; CI 0.24-0.67 - p = 0.001) and >=65 years (RR 0.15; CI 0.06-0.35 - p < 0.001), being part of the second quartile of fat consumption (RR 0.59; CI 0.35-0.97 - p = 0.041), no alcohol consumption (RR 0.59; CI 0.37-0.93 - p = 0.024) and smoking (RR 0.58; CI 0.39-0.86 - p = 0,007) in phase 1. CONCLUSIONS: We identified in thirteen years of follow-up that older ages, a moderate fat consumption compared to low consumption, no alcohol consumption and smoking habit were related to a decreased risk of new-onset overweight/obesity. Obesity prevention actions must focus on subjects at younger ages and include policies to reduce alcohol consumption. PMID- 29334953 TI - Care relationships at stake? Home healthcare professionals' experiences with digital medicine dispensers - a qualitative study. AB - BACKGROUND: Although digital technologies can mitigate the burdens of home healthcare services caused by an ageing population that lives at home longer with complex health problems, research on the impacts and consequences of digitalised remote communication between patients and caregivers is lacking. The present study explores how home healthcare professionals had experienced the introduction of digital medicine dispensers and their influence on patient-caregiver relationships. METHODS: The multi-case study comprised semi-structured interviews with 21 healthcare professionals whose home healthcare service involved using the digital medicine dispensers. The constant comparative method was used for data analyses. RESULTS: Altogether, interviewed healthcare professionals reported three main technology-related impacts upon their patient-caregiver relationships. First, national and local pressure to increase efficiency had troubled their relationships with patients who suspected that municipalities have sought to lower costs by reducing and digitalising services. Participants reported having to consider such worries when introducing technologies into their services. Second, participants reported a shift towards empowering patients. Digital technology can empower patients who value their independence, whereas safety is more important for other patients. Healthcare professionals needed to ensure that replacing care tasks with technology implies safe and improved care. Third, the safety and quality of digital healthcare services continues to depend upon surveillance and control mechanisms that compensate for less face-to-face monitoring. Participants did not consider the possibility that surveillance exposes information about patients' everyday lives to be problematic, but to constitute opportunities for adjusting services to meet patients' needs. CONCLUSIONS: Technologies such as digital medicine dispensers can improve the efficiency of healthcare services and enhance patients' independence when introduced in a way that empowers patients as well as safeguards trust and service quality. Conversely, the patient-caregiver relationship can suffer if the technology does not meet patients' needs and fails to offer safe and trustworthy services. Upon introducing technology, home healthcare professionals therefore need to carefully consider the benefits and possible disadvantages of the technology. Ethical implications for both individuals and societies need to be further discussed. PMID- 29334954 TI - Association between non-cholesterol sterol concentrations and Achilles tendon thickness in patients with genetic familial hypercholesterolemia. AB - BACKGROUND: Familial hypercholesterolemia (FH) is a genetic disorder that result in abnormally high low-density lipoprotein cholesterol levels, markedly increased risk of coronary heart disease (CHD) and tendon xanthomas (TX). However, the clinical expression is highly variable. TX are present in other metabolic diseases that associate increased sterol concentration. If non-cholesterol sterols are involved in the development of TX in FH has not been analyzed. METHODS: Clinical and biochemical characteristics, non-cholesterol sterols concentrations and Aquilles tendon thickness were determined in subjects with genetic FH with (n = 63) and without (n = 40) TX. Student-t test o Mann-Whitney test were used accordingly. Categorical variables were compared using a Chi square test. ANOVA and Kruskal-Wallis tests were performed to multiple independent variables comparison. Post hoc adjusted comparisons were performed with Bonferroni correction when applicable. Correlations of parameters in selected groups were calculated applying the non-parametric Spearman correlation procedure. To identify variables associated with Achilles tendon thickness changes, multiple linear regression were applied. RESULTS: Patients with TX presented higher concentrations of non-cholesterol sterols in plasma than patients without xanthomas (P = 0.006 and 0.034, respectively). Furthermore, there was a significant association between 5alpha-cholestanol, beta-sitosterol, desmosterol, 24S-hydroxycholesterol and 27-hydroxycholesterol concentrations and Achilles tendon thickness (p = 0.002, 0.012, 0.020, 0.045 and 0.040, respectively). CONCLUSIONS: Our results indicate that non-cholesterol sterol concentrations are associated with the presence of TX. Since cholesterol and non cholesterol sterols are present in the same lipoproteins, further studies would be needed to elucidate their potential role in the development of TX. PMID- 29334955 TI - The inverted cup device for blood transfer on malaria RDTs: ease of use, acceptability and safety in routine use by health workers in Nigeria. AB - BACKGROUND: Malaria rapid diagnostic tests (RDTs) are becoming widely adopted for case management at community level. However, reports and anecdotal observations indicate that the blood transfer step poses a significant challenge to many users. This study sought to evaluate the inverted cup device in the hands of health workers in everyday clinical practice, in comparison with the plastic pipette, and to determine the volume accuracy of the device made of a lower-cost plastic. METHODS: The volume accuracy of inverted cup devices made of two plastics, PMMA and SBC, was compared by transferring blood 150 times onto filter paper and comparing the blood spot areas with those produced by 20 reference transfers with a calibrated micropipette. The ease of use, safety and acceptability of the inverted cup device and the pipette were evaluated by 50 health workers in Nigeria. Observations were recorded on pre-designed questionnaires, by the health workers themselves and by trained observers. Focus group discussions were also conducted. RESULTS: The volume accuracy assessment showed that the device made from the low-cost material (SBC) delivered a more accurate volume (mean 5.4 MUL, SD 0.48 MUL, range 4.5-7.0 MUL) than the PMMA device (mean 5.9 MUL, SD 0.48 MUL, range 4.9-7.2 MUL). The observational evaluation demonstrated that the inverted cup device performed better than the pipette in all aspects, e.g. higher proportions of health workers achieved successful blood collection (96%, vs. 66%), transfer of the required blood volume (90%, vs. 58%), and blood deposit without any loss (95%, vs. 50%). Majority of health workers also considered it' very easy' to use (81%),'very appropriate' for everyday use (78%), and 50% of them reported that it was their preferred BTD. CONCLUSIONS: The good volume accuracy and high acceptability of the inverted cup device shown in this study, along with observed ease of use and safety in hands of health workers, further strengthens prior findings which demonstrated its higher accuracy as compared with other BTDs in a laboratory setting. Altogether, these studies suggest that the inverted cup device should replace other types of devices for use in day-to-day malaria diagnosis with RDTs. PMID- 29334956 TI - Identification and characterization of areas of high and low risk for asymptomatic malaria infections at sub-village level in Ratanakiri, Cambodia. AB - BACKGROUND: Malaria elimination needs a concentration of activities towards identification of residual transmission foci and intensification of efforts to eliminate the last few infections, located in so-called 'malaria hotspots'. Previous work on characterizing malaria transmission hotspots has mainly focused on falciparum malaria and especially on symptomatic cases, while the malaria reservoir is expected to be mainly concentrated in the asymptomatic human population when transmission is low. For Plasmodium vivax, there has been less effort in identifying transmission hotspots. The main aim of this study was to uncover micro-epidemiological mechanisms of clustering of malaria infections at a sub-village level, based on geographical or behavioural features. METHODS: A cross-sectional survey was performed in three villages within the highest malaria endemic province of Cambodia. The survey took place in the dry season, when the malaria reservoir is expected to be low and residing in the asymptomatic part of the population. Village and field locations of households were georeferenced, blood samples were taken from as many residents as possible and a short questionnaire probing for individual risk factors was taken. Asymptomatic malaria carriers were detected by PCR, and geographical clustering analysis (SaTScan) as well as risk factor analysis were performed. RESULTS: A total of 1540 out of 1792 (86%) individuals were sampled. Plasmodial DNA was detected in 129 individuals (8.4%). P. vivax was most prevalent (5.5%) followed by Plasmodium malariae (2.1%) and Plasmodium falciparum (1.6%). Mixed infection occurred in 12 individuals. In two out of three villages geographical clustering of high and low malaria infection risk was clearly present. Cluster location and risk factors associated with the infection differed between the parasite species. Age was an important risk factor for the combined Plasmodium infections, while watching television at evenings was associated with increased odds of P. vivax infections [OR (CI): 1.86 (0.95-3.64)] and bed net use was associated with reduced odds of P. falciparum infections [OR (CI): 0.25 (0.077-0.80)]. CONCLUSIONS: Clusters of malaria carriers were malaria species specific and often located remotely, outside village centres. As such, at micro-epidemiological level, malaria is not a single disease. Further unravelling the micro-epidemiology of malaria can enable programme managers to define the interventions likely to contribute to halt transmission in a particular hotspot location. PMID- 29334957 TI - Vertebral column decancellation in Pott's deformity: use of Surgimap Spine for preoperative surgical planning, retrospective review of 18 patients. AB - BACKGROUND: In the late stage of Spinal tuberculosis, the bony destruction and vertebral collapse often leads to significant kyphosis, presenting clinically as a painful gibbus deformity, with increased instability, vertebral body translations and increased risk of neurologic involvement. Vertebral column decancellation is thought to be suitable for most patients with severe rigid kyphosis. Surgimap Spine, could offer a pragmatic graphical method for the surgical planning of osteotomies. The aim of this study was to evaluate the efficacy of Vertebral column decancellation planned preoperatively with the computer software-assistance in the patients with Pott's kyphosis. METHODS: Between May 2012 and May 2015, 18 patients with Pott's kyphosis underwent the Vertebral column decancellation using Surgimap Spine for preoperative surgical planning. Preoperative and postoperative Konstam's angle, sagittal vertical angle, lumbar lordosis, thoracic kyphosis, pelvic tilt and pelvic incidence were measured. Visual analog scale and American Spinal Injury Association were documented. RESULTS: The Konstam's angles decreased from 88.1 degrees (range, 70 105 degrees ) preoperatively to 18.5 degrees (range, 7-31 degrees ) (P < 0.01). All patients reached the physiological limits at the final follow-up. The mean VAS score was reduced from preoperative 7.1 (range, 6-8) to 1.8 (range, 1-3, P < 0.01) and the ODI improved from 65.8% (range, 58-74%) to 20.2% (range, 12-38%, P < 0.01). At final follow-up, there was radiographic evidence of solid fusion at the osteotomy site and fixed segments in all patients. Neurological function improved from ASIA scale D to E in 5 patients. The patients were followed up for 30.4 months on average. CONCLUSION: Vertebral column decancellation is an effective treatment option for severe Pott's kyphosis. The surgical planning software Surgimap Spine can be a reliable and helpful tool that provides a simplified method to evaluate and analyze the spino-pelvic parameters and simulate the osteotomy procedure. According to individual character, the appropriate surgery strategy should be selected. PMID- 29334958 TI - Clinical rationale and safety of restaging transurethral resection in indication stratified patients with high-risk non-muscle-invasive bladder cancer. AB - BACKGROUND: Indications for restaging transurethral resection of the bladder tumor (reTURBT) in patients with non-muscle-invasive bladder cancer (NMIBC) remain controversial. This study was aimed at evaluation of clinical value and safety of reTURBT in different clinical indications. METHODS: This is a retrospective analysis of consecutive 141 patients who underwent TURBT followed by reTURBT in years 2011-2015 in a single department. Pathological results and surgical complications were analyzed in the whole study cohort and stratified by clinical stage (Ta, T1, Tx (no muscle in the specimen)) and grade (low-grade (LG), high-grade (HG)) of bladder cancer diagnosed at primary TURBT. RESULTS: Full data was available for 132 patients. Residual disease was found in 53 patients (40.2%) with highest rate for Ta-HG cases (57.1%) followed by T1-HG (51.4%), Tx-HG (45.2%), T1-LG (32.1%), and Tx-LG (25.8%). In the multivariate analysis, high grade (p = 0.02) was the only independent predictor of residual disease. Upstaging to muscle-invasive bladder cancer was noticed in 9 patients (6.8%). The rate of grade >= 2 Clavien-Dindo complications (1.5 vs. 5.3%) did not differ significantly between TURBT and reTURBT cases. CONCLUSIONS: ReTURBT is a safe procedure that remains crucial for therapeutic and staging purposes in patients with T1, Tx, or high-grade bladder cancer found in the primary resection. PMID- 29334959 TI - A structural equation model of perceived and internalized stigma, depression, and suicidal status among people living with HIV/AIDS. AB - BACKGROUND: Previous studies have shown positive association between HIV-related stigma and depression, suicidal ideation, and suicidal attempt among people living with HIV/AIDS (PLWH). But few studies have examined the mechanisms among HIV-related stigma, depression, and suicidal status (suicidal ideation and/or suicidal attempt) in PLWH. The current study examined the relationships among perceived and internalized stigma (PIS), depression, and suicidal status among PLWH in Guangzhou, China using structural equation modeling. METHODS: Cross sectional study by convenience sampling was conducted and 411 PLWH were recruited from the Number Eight People's Hospital from March to June, 2013 in Guangzhou, China. Participants were interviewed on their PIS, depressive symptoms, suicidal status, and socio-demographic characteristics. PLWH who had had suicidal ideation and suicidal attempts since HIV diagnosis were considered to be suicidal. Structural equation model was performed to examine the direct and indirect associations of PIS and suicidal status. Indicators to evaluate goodness of fit of the structural equation model included Chi-square Statistic, Comparative Fit Index (CFI), Root Mean Square Error of Approximation (RMSEA), Standardized Root Mean Square Residual (SRMR), and Weighted Root Mean Square Residual (WRMR). RESULTS: More than one-third (38.4%) of the PLWH had depressive symptoms and 32.4% reported suicidal ideation and/or attempt since HIV diagnosis. The global model showed good model fit (Chi-square value = 34.42, CFI = 0.98, RMSEA = 0.03, WRMR = 0.73). Structural equation model revealed that direct pathway of PIS on suicidal status was significant (standardized pathway coefficient = 0.21), and indirect pathway of PIS on suicidal status via depression was also significant (standardized pathway coefficient = 0.24). There was a partial mediating effect of depression in the association between PIS and suicidal status. CONCLUSIONS: Our findings suggest that PIS is associated with increased depression and the likelihood of suicidal status. Depression is in turn positively associated with suicidal status and plays a mediating role between PIS and suicidal status. Therefore, to reduce suicidal ideation and attempt in PLWH, targeted interventions to reduce PIS and improve mental health status of PLWH are warranted. PMID- 29334960 TI - Arsenic exposure and risk of nonalcoholic fatty liver disease (NAFLD) among U.S. adolescents and adults: an association modified by race/ethnicity, NHANES 2005 2014. AB - BACKGROUND: While associated with obesity, the cause of the rapid rise in prevalence of nonalcoholic fatty liver disease (NAFLD) in children, which is highest among Hispanics, is not well understood. Animal experiments have demonstrated that arsenic exposure contributes to liver injury. Our objective was to examine the association between arsenic exposure and NAFLD in humans and to determine if race/ethnicity modifies the association. METHODS: Urinary inorganic arsenic concentrations among those >=12 years in the National Health and Nutrition Examination Survey, 2005-2014 were used to assess the cross-sectional association with serum alanine aminotransferase (ALT) levels, a marker of liver dysfunction. We excluded high alcohol consumers (>4-5 drinks/day; n = 939), positive hepatitis B or C (n = 2330), those missing body mass index (n = 100) and pregnant women (n = 629) for a final sample of 8518. Arsenic was measured using liquid chromatography coupled with mass spectrometry and ALT was measured using standard methods. Sampling weights were used to obtain national estimates. Due to lack of normality, estimates were log transformed and are presented as geometric means. Logistic regression models controlling for age, sex, income, and weight category estimate adjusted odd ratios (aOR) of elevated ALT by quartile of arsenic and tested for effect modification by race/ethnicity and weight. Elevated ALT was defined as >25 IU/L and >22 IU/L for boys and girls <=17 years, respectively and >30 IU/L and >19 IU/L for men and women, respectively. RESULTS: Among all, aOR of elevated ALT were higher among those in the highest vs. lowest arsenic quartile (referent), 1.4 (95% confidence interval [CI]: 1.1, 1.7) with a borderline significant interaction (p = 0.07) by race/ethnicity but not weight (p = 0.4). In analysis stratified by race/ethnicity, aOR of elevated ALT among those in the 4th quartile were higher among Mexican Americans, 2.0 (CI: 1.3, 3.1) and non-Hispanic whites only, aOR 1.4 (CI: 1.1, 1.8) despite the fact that obesity prevalence was highest among non-Hispanic blacks. CONCLUSIONS: Our findings demonstrate a positive association between urinary arsenic exposure and risk of NAFLD among U.S. adolescents and adults that is highest among Mexican Americans and among those obese, regardless of race/ethnicity. PMID- 29334961 TI - Smoke, alcohol and drug addiction and male fertility. AB - In recent decades, the decline in human fertility has become increasingly more worrying: while therapeutic interventions might help, they are vexing for the couple and often burdened with high failure rates and costs. Prevention is the most successful approach to fertility disorders in males and females alike. We performed a literature review on three of the most common unhealthy habits - tobacco, alcohol and drug addiction - and their reported effects on male fertility. Tobacco smoking is remarkably common in most first-world countries; despite a progressive decline in the US, recent reports suggest a prevalence of more than 30% in subjects of reproductive age - a disturbing perspective, given the well-known ill-effects on reproductive and sexual function as well as general health. Alcohol consumption is often considered socially acceptable, but its negative effects on gonadal function have been consistently reported in the last 30 years. Several studies have reported a variety of negative effects on male fertility following drug abuse - a worrying phenomenon, as illicit drug consumption is on the rise, most notably in younger subjects. While evidence in these regards is still far from solid, mostly as a result of several confounding factors, it is safe to assume that cessation of tobacco smoking, alcohol consumption and recreational drug addiction might represent the best course of action for any couple trying to achieve pregnancy. PMID- 29334962 TI - Developing a tablet computer-based application ('App') to measure self-reported alcohol consumption in Indigenous Australians. AB - BACKGROUND: The challenges of assessing alcohol consumption can be greater in Indigenous communities where there may be culturally distinct approaches to communication, sharing of drinking containers and episodic patterns of drinking. This paper discusses the processes used to develop a tablet computer-based application ('App') to collect a detailed assessment of drinking patterns in Indigenous Australians. The key features of the resulting App are described. METHODS: An iterative consultation process was used (instead of one-off focus groups), with Indigenous cultural experts and clinical experts. Regular (weekly or more) advice was sought over a 12-month period from Indigenous community leaders and from a range of Indigenous and non-Indigenous health professionals and researchers. RESULTS: The underpinning principles, selected survey items, and key technical features of the App are described. Features include culturally appropriate questioning style and gender-specific voice and images; community recognised events used as reference points to 'anchor' time periods; 'translation' to colloquial English and (for audio) to traditional language; interactive visual approaches to estimate quantity of drinking; images of specific brands of alcohol, rather than abstract description of alcohol type (e.g. 'spirits'); images of make-shift drinking containers; option to estimate consumption based on the individual's share of what the group drank. CONCLUSIONS: With any survey platform, helping participants to accurately reflect on and report their drinking presents a challenge. The availability of interactive, tablet-based technologies enables potential bridging of differences in culture and lifestyle and enhanced reporting. PMID- 29334963 TI - Evaluating the impact of a falls prevention community of practice in a residential aged care setting: a realist approach. AB - BACKGROUND: Falls are a major socio-economic problem among residential aged care (RAC) populations resulting in high rates of injury including hip fracture. Guidelines recommend that multifactorial prevention strategies are implemented but these require translation into clinical practice. A community of practice (CoP) was selected as a suitable model to support translation of the best available evidence into practice, as it could bring together like-minded people with falls expertise and local clinical knowledge providing a social learning opportunity in the pursuit of a common goal; falls prevention. The aims of this study were to evaluate the impact of a falls prevention CoP on its membership; actions at facility level; and actions at organisation level in translating falls prevention evidence into practice. METHODS: A convergent, parallel mixed methods evaluation design based on a realist approach using surveys, audits, observations and semi-structured interviews. Participants were 20 interdisciplinary staff nominating as CoP members between Nov 2013-Nov 2015 representing 13 facilities (approximately 780 beds) of a RAC organisation. The impact of the CoP was evaluated at three levels to identify how the CoP influenced the observed outcomes in the varying contexts of its membership (level i.), the RAC facility (level ii.) and RAC organisation (level iii.). RESULTS: Staff participating as CoP members gained knowledge and awareness in falls prevention (p < 0.001) through connecting and sharing. Strategies prioritised and addressed at RAC facility level culminated in an increase in the proportion of residents supplemented with vitamin D (p = 0.002) and development of falls prevention education. At organisation level a falls policy reflecting preventative evidence based guidelines and a new falls risk assessment procedure with aligned management plans were written, modified and implemented. A key disenabling mechanism identified by CoP members was limited time to engage in translation of evidence into practice whilst enabling mechanisms included proactive behaviours by staff and management. CONCLUSIONS: Interdisciplinary staff participating in a falls prevention CoP gained connectivity and knowledge and were able to facilitate the translation of falls prevention evidence into practice in the context of their RAC facility and RAC organisation. Support from RAC organisational and facility management to make the necessary investment in staff time to enable change in falls prevention practice is essential for success. PMID- 29334964 TI - Ginkgo biloba induced mood dysregulation: a case report. AB - BACKGROUND: Impairment of cognitive function as well as negative symptom is the major factor causing the decline of a patient's functioning in chronic stages of schizophrenia. However, until now, there were no definite treatment options that could effectively reduce the impairment. CASE PRESENTATION: We report a case of mood dysregulation associated with use of Ginkgo biloba in a patient with schizophrenia. After Ginkgo biloba was given, the patient experienced cluster symptoms of mood dysregulation including irritability, difficulty in controlling anger, agitation and restlessness. We estimated the possibility as "probable" according to Naranjo scale considering circumstantial evidence. CONCLUSIONS: This case suggests that Ginkgo biloba may have caused mood dysregulation in this patient. Although it is generally accepted as safe, more attention should be given to the adverse effect when treating with Ginkgo biloba. PMID- 29334965 TI - A novel IL-1RA-PEP fusion protein alleviates blood-brain barrier disruption after ischemia-reperfusion in male rats. AB - BACKGROUND: Current options to treat clinical relapse in inflammatory central nervous system (CNS) conditions such as cerebral ischemia-reperfusion injury are limited, and agents that are more effective are required. Disruption of the blood brain barrier is an early feature of lesion formation that correlates with clinical exacerbation and facilitates the entry of inflammatory medium and inflammatory cells. Interleukin-1 receptor antagonist (IL-1RA) is a naturally occurring anti-inflammatory antagonist of the interleukin-1 (IL-1) family. The broad-spectrum anti-inflammatory effects of IL-1RA have been investigated against various forms of neuroinflammation. However, the effect of IL-1RA on blood-brain barrier disruption following ischemia-reperfusion has not been reported. METHODS: In this study, we investigated the effects of IL-1RA and a novel protein (IL-1RA PEP) that was fused to IL-1RA with a cell penetrating peptide, on blood-brain barrier integrity, in male rats subjected to transient middle cerebral artery occlusion. RESULTS: After intravenous administration, IL-1RA-PEP (50 mg/kg) penetrated cerebral tissues more effectively than IL-1RA. Moreover, it preserved blood-brain barrier integrity, attenuated changes in expression and localization of tight junction proteins and matrix metalloproteinases, and enhanced angiogenesis in ischemic brain tissue. Further study suggested that the effects of IL-1RA-PEP on preserving blood-brain barrier integrity might be closely correlated with the p65/NF-kappaB pathway, as evidenced by the effects of the inhibitor JSH-23. CONCLUSIONS: Collectively, our results demonstrated that IL-1RA PEP could effectively penetrate the brain of rats with middle cerebral artery occlusion and ameliorate blood-brain barrier disruption. This finding might represent its novel therapeutic potential in the treatment of the cerebral ischemia-reperfusion injury. PMID- 29334966 TI - Atherogenic index of plasma is an effective index for estimating abdominal obesity. AB - BACKGROUND: The correlation between the atherogenic index of plasma (AIP) and waist circumference (WC) remains unknown. METHODS: A total of 5351 middle-aged men living in Southeastern China were surveyed using the random stratified cluster sampling method. A WC of 90 cm or greater was indicative of abdominal obesity, and AIP was calculated as follows: log [triglyceride (TG)/high-density lipoprotein-cholesterol (HDL-C)]. RESULTS: (1) A significantly higher AIP was observed in subjects with abdominal obesity than in those without abdominal obesity (P < 0.001). (2) Multivariate logistic regression analysis revealed an odds ratio of 1.93, 2.59 and 2.76 for abnormal AIP levels for the second, third and fourth WC quartiles, respectively (all P < 0.001) compared to the first WC quartile as a reference. (3) There was a linear correlation between WC and AIP, and a 1.0 cm increase in WC resulted in a 0.0175 rise in AIP. For AIP corresponding to moderate risk (0.12-0.21), WC was 85-90 cm; for AIP corresponding to high risk (> 0.21), WC was >90 cm. CONCLUSIONS: AIP of 0.12-0.21 or >0.21 indicates a likelihood of borderline abdominal obesity or abdominal obesity, respectively, and the combination of WC and AIP may increase the specificity and sensitivity for detection of abdominal obesity in clinical practice. The results suggest that AIP may be used as a reference to estimate abdominal obesity. PMID- 29334967 TI - Risk factors and treatment of pneumothorax secondary to granulomatosis with polyangiitis: a clinical analysis of 25 cases. AB - OBJECTIVES: To investigate the risk factors and treatment strategies for pneumothorax secondary to granulomatosis with polyangiitis (GPA). METHOD: Retrospective analysis of cases with pneumothorax secondary to GPA from our own practice and published on literature. RESULTS: A total of 25 patients, 18 males and 7 females, mean age 44 +/- 15.7 years, were analyzed. Diagnosis included pneumothorax (11 cases), hydropneumothorax (n = 5), empyema (n = 8) and hemopneumothorax (n = 1). 88% (22/25) patients showed single/multiple pulmonary/ subpleural nodules with/without cavitation on chest imaging. Erythrocyte sedimentation rate and C-reactive protein were both elevated. Corticosteroids and immunosuppressive agents were used in 16 cases. Five cases received steroid pulse therapy, of which 4 patients survived. Pleural drainage was effective in some patients. Seven patients underwent surgical operations. In the 10 fatal cases, infection and respiratory failure were the most common cause. Lung biopsy/ autopsy showed lung/pleural necrotizing granulomatous vasculitis, breaking into the chest cavity, pleural fibrosis, bronchial pleural fistula, etc. The mean age in the death group was greater than the survival group (53 +/- 12.9 years vs 40.1 +/- 14.7 years, p = 0.05), the ineffective pleural drainage was also higher in the death group (5/5 vs 0/7, p = 0.01). CONCLUSIONS: Pneumothorax was seen in the active GPA, due to a variety of reasons, and gave rise to high fatality rate. Aggressive treatment of GPA can improve the prognosis. Older and lack of response for pleural drainage indicates poor prognosis. PMID- 29334969 TI - The effects of workplace respect and violence on nurses' job satisfaction in Ghana: a cross-sectional survey. AB - BACKGROUND: Studies have established the negative effects of workplace disrespect and violence on the personal and professional well-being of nurses. In spite of this, only a few have directly investigated the effects of these issues on nurses' job satisfaction. In Africa, research on nurses' job satisfaction continues to focus largely on economic factors. The aim of this paper was, therefore, to investigate the impact of the non-economic factors of workplace violence and respect on the job satisfaction levels of nurses in Ghana. METHODS: The study employed a cross-sectional questionnaire survey. It involved 592 qualified practising nurses working in public hospitals in Ghana. Data were collected between September 2013 and April 2014. RESULTS: The results showed that, overall, nurses were neither satisfied nor dissatisfied with their jobs (M = 3.19, SD = .54). More than half (52.7%) of the participants had been abused verbally, and 12% had been sexually harassed in the 12 months prior to the study. The majority of nurses, however, believed they were respected at the workplace (M = 3.77, SD = .70, Mode = 4). Multiple regression analyses showed that verbal abuse and perceived respect were statistically significant predictors of nurses' job satisfaction. Nurses who experienced verbal abuse and low level of respect were more likely to report low job satisfaction scores. CONCLUSION: It is concluded that non-financial strategies such as safe work environments which are devoid of workplace violence may enhance nurses' job satisfaction levels. A policy of "zero tolerance" for violence and low tolerance for disrespect could be put in place to protect nurses and healthcare professionals in general. PMID- 29334968 TI - Barriers and facilitators to cultural competence in rehabilitation services: a scoping review. AB - BACKGROUND: There is an important need to evaluate whether rehabilitation services effectively address the needs of minority culture populations with North America's increasingly diverse population. The objective of this paper was therefore to review and assess the state of knowledge of barriers and facilitators to cultural competence in rehabilitation services. METHOD: Our scoping review focused on cultural competence in rehabilitation services. Rehabilitation services included in this review were: audiology, speech-language pathology, physiotherapy, and occupational therapy. A search strategy was developed to identify relevant articles published from inception of databases until April 2015. Titles and abstracts were screened by two independent reviewers according to specific eligibility criteria with the use of a liberal-accelerated approach. Full-text articles meeting inclusion criteria were then screened. Key study characteristics were abstracted by the first reviewer, and findings were verified by the second reviewer. RESULTS: After duplicates were removed, 4303 citations were screened. Included articles suggest that studies on cultural competence occur most frequently in occupational therapy (n = 17), followed by speech language pathology (n = 11), physiotherapy (n = 6), and finally audiology (n = 1). Primary barriers in rehabilitation services include language barriers, limited resources, and cultural barriers. Primary facilitators include cultural awareness amongst practitioners, cultural awareness in services, and explanations of health care systems. CONCLUSION: To our knowledge, this review is the first to summarize barriers and facilitators to cultural competence in rehabilitation fields. Insufficient studies were found to draw any conclusions with regards to audiological services. Minimal perspectives based on patient/caregiver experiences in all rehabilitation fields underscore a research gap. Future studies should aim to explore both patient/caregiver and practitioner perspectives as such data can help inform culturally competent practices. PMID- 29334970 TI - Digital Media-based Health Intervention on the promotion of Women's physical activity: a quasi-experimental study. AB - BACKGROUND: Technological advances have caused poor mobility and lower physical activity among humankind. This study was conducted to assess the impact of a digital media-based (multi-media, internet, and mobile phone) health intervention on promotion of women's physical activity. METHODS: In this quasi-experimental study, 360 women were divided into case and control groups. The digital media based educational intervention was conducted in two months in the case group electronically, using mail and Internet and telephone platforms. Physical activity was measured using International Physical Activity Questionnaire (IPAQ) that estimated women's physical activity rate in the previous week. Data was analyzed using descriptive and analytical statistics (ANOVA, chi-square, paired and independent t-tests) using SPSS 20. RESULTS: The mean score of knowledge, attitude and level of physical activity in the control group were not significantly different before and after the intervention. While in the case group, this difference before and after the intervention was significant (p < 0.001), and mean scores of the above-mentioned factors increased after the intervention. CONCLUSIONS: Using innovative and digital media-based health education can be effective in improving health-based behavior such as physical activity. Therefore, it seems necessary to develop user-based strategies and strengthen the behavioral change theories and hypotheses based on digital media for effective influence on behavior. TRIAL REGISTRATION: Iranian Registry of Clinical Trials (IRCT), IRCT20160619028529N5 . Registered December 24, 2017 [retrospectively registered]. PMID- 29334971 TI - The titanium elastic nail serves as an alternative treatment for adult proximal radial shaft fractures: a cohort study. AB - BACKGROUND: To investigate whether closed reduction and internal fixation (CRIF) with titanium elastic nails (TENs) is a viable alternative treatment in proximal radial fractures. METHODS: In Kaohsiung Veterans General Hospital, from November 2013 to April 2015, five adult male patients with forearm injuries (average age 43 years; range 35-64 years) were treated for proximal radial shaft fractures. CRIF with TENs for radial shaft fractures was performed in these five patients. Radiographs; range of motions; visual analog scale (VAS); quick disabilities of the arm, shoulder, and hand (Quick DASH) questionnaire; and time to union were evaluated in our study. RESULTS: Mean follow-up period was 30 months (range 28-36 months). Average time of radius union was 7.3 months (range 6-10 months). Functional outcomes 1 year after operation revealed an average Quick DASH score of 7.92 (range 4.5-25), an average VAS of 1.5 (range 1-3), and average forearm supination and pronation of 69.2 degrees (range 45 degrees -75 degrees ) and 82.5 degrees (range 80 degrees -85 degrees ). No major complication was noted. CONCLUSIONS: CRIF with TEN for adult proximal radial fractures is a method to avoid extensive exposure or nerve injury during ORIF, especially in multiple trauma patients who require short operative time, uremia patients with ipsilateral forearm AV shunt, severe soft tissue swelling due to direct muscle contusion or strong muscularity before surgery, extensive radial fracture, and those in pursuit of cosmetic outcomes. PMID- 29334972 TI - Community readiness assessment for obesity research: pilot implementation of the Healthier Families programme. AB - BACKGROUND: This article reports on the development of a systematic approach to assess for community readiness prior to implementation of a behavioural intervention for childhood obesity. Using the Consolidated Framework for Implementation Research (CFIR), we developed research tools to evaluate local community centres' organisational readiness and their capacity to implement the intervention. METHODS: Four community Parks and Recreation centres from different states expressed interest in piloting an approach for dissemination and implementation of an evidence-based obesity prevention program for families with young children (Healthier Families). We conducted a mixed methods pre implementation evaluation using the CFIR to evaluate the alignment of organisational priorities with the Healthier Families programme. Written surveys assessed organisational readiness for change amongst organisational leaders, recreation programmers, and staff (N = 25). Key informant interviews were conducted among staff to assess organisational readiness and with community members to assess community readiness (N = 64). Surveys were analysed with univariate statistics. Interviews were transcribed, coded and analysed using inductive and deductive methods of analysis. RESULTS: Mixed-methods analysis led to the identification of three key domains on which to assess the organisational readiness to adopt a childhood obesity intervention, namely the physical infrastructure, the knowledge infrastructure, and the social infrastructure. The most critical measure of compatibility was the social infrastructure, since obstacles in the knowledge and physical infrastructures could be overcome by the strength of social resources, including the staff's ingenuity and commitment to a healthier community. This approach guided an assessment of organisational readiness prior to community organisations adopting and preparing to disseminate an obesity prevention community-based program in a wide-range of social and environmental contexts. CONCLUSIONS: Using a comprehensive pre-implementation assessment of the knowledge, physical and social infrastructures in a community is an essential step in effective dissemination for community-based behavioural interventions. Our research found that, when evaluating readiness and alignment, a responsive social infrastructure could provide the capacity to overcome potential barriers to implementation in either the knowledge or physical infrastructures. PMID- 29334973 TI - Options for reducing HIV transmission related to the dead space in needles and syringes. AB - BACKGROUND: When shared by people who inject drugs, needles and syringes with different dead space may affect the probability of HIV and hepatitis C virus (HCV) transmission differently. METHODS: We measured dead space in 56 needle and syringe combinations obtained from needle and syringe programs across 17 countries in Europe and Asia. We also calculated the amounts of blood and HIV that would remain in different combinations following injection and rinsing. RESULTS: Syringe barrel capacities ranged from 0.5 to 20 mL. Needles ranged in length from 8 to 38 mm. The average dead space was 3 MUL in low dead space syringes with permanently attached needles, 13 MUL in high dead space syringes with low dead space needles, 45 MUL in low dead space syringes with high dead space needles, and 99 MUL in high dead space syringes with high dead space needles. Among low dead space designs, calculated volumes of blood and HIV viral burden were lowest for low dead space syringes with permanently attached needles and highest for low dead space syringes with high dead space needles. CONCLUSION: The dead space in different low dead space needle and syringe combinations varied substantially. To reduce HIV transmission related to syringe sharing, needle and syringe programs need to combine this knowledge with the needs of their clients. PMID- 29334974 TI - Prevalence of dysmenorrhea and predictors of its pain intensity among Palestinian female university students. AB - BACKGROUND: Few studies on gynaecological problems of young females in Arab countries were published. The aim of this study was to determine the prevalence of dysmenorrhea and predictors of its pain among university students in Palestine. METHODS: A cross - sectional study was carried out on a randomly selected sample of An-Najah National University female students. A pre-designed questionnaire, which included questions regarding menstrual cycle, pain during menstruation, life style, nutritional habits, and symptoms associated with menstrual pain, was used. Pain intensity was measured using visual analogue scale. RESULTS: A total of 956 female students were involved in the study. Of the total study sample, 846 (85.1%) reported having pain during menstruation; i.e. dysmenorrhea. Dysmenorrhea was significantly [(p = 0.027); OR = 1.5, 95% CI (1.05 2.19)] associated with age at menarche. The mean score of pain among dysmenorrhic females was 6.79 +/- 2.64. The majority (654; 80.34%) of dysmenorrhic females reported having moderate/ severe pain. Univariate analysis using Chi-square test for factors associated with moderate/severe pain among dysmenorrhic females were irregular cycle [(p = 0.015); OR = 1.57, 95% CI = (1.09-2.30)], skipping breakfast [(p < 0.001); OR = 1.93, 95% CI = (1.33-2.79)], academic specialization [(p = 0.03; OR = 2.2, 95% CI = (1.21-3.98)] for medical specialization with reference to students in humanities), high stress level [(p = 0.036; OR = 1.53, 95% CI = (1.03-2.28)], and living in dormitories [(p = 0.034); OR = 1.72, 95% CI = (1.04-2.86)]. Multivariate analysis using binary logistic regression enter method showed that medical specialization [(p = 0.045); OR = 1.92, 95% CI = (1.02 3.64)] for medical students with reference to students in humanities), skipping breakfast [(p = 0.001); OR = 1.96, 95% CI = (1.35-2.86)], and irregular cycle [(p = 0.022); OR = 1.56, 95% CI = (1.07-2.29)] were the only significant predictors of moderate/severe dysmenorrhic pain. CONCLUSION: There is a high proportion of dysmenorrhea among Palestinian female university students. Skipping breakfast was the strongest predictor for moderate/severe dysmenorrhea. Increased awareness regarding factors that might influence the intensity of dysmenorrhic pain is needed. PMID- 29334976 TI - Plants traditionally used to make Cantonese slow-cooked soup in China. AB - BACKGROUND: Lao huo liang tang (Cantonese slow-cooked soup, CSCS) is popular in Guangdong, China, and is consumed by Cantonese people worldwide as a delicious appetizer. Because CSCS serves as an important part of family healthcare, medicinal plants and plant-derived products are major components of CSCS. However, a collated record of the diverse plant species and an ethnobotanical investigation of CSCS is lacking. Because of globalization along with a renewed interest in botanical and food therapy, CSCS has attracted a growing attention in soup by industries, scientists, and consumers. This study represents the first attempt to document the plant species used for CSCS in Guangdong, China, and the associated ethnomedical function of plants, including their local names, part(s) used, flavors, nature, preparation before cooking, habitats, and conservation status. METHODS: In 2014-2017, participatory approaches, open-ended conversations, and semi-structured interviews were conducted with 63 local people and 48 soup restaurant owners (111 interviews) to better understand the biocultural context of CSCS, emphasizing ethnobotanical uses of plants in Guangdong Province, China. Product samples and voucher specimens were collected for taxonomic identification. Mention Index (QI), frequency of use index (FUI), and economic index (EI) were adopted to evaluate the significance of each plant in the food supply. RESULTS: A total of 97 plant species belonging to 46 families and 90 genera were recorded as having been used in CSCS in the study area. Recorded menus consisted of one or several plant species, with each one used for different purposes. They were classified into 11 functions, with clearing heat being the most common medicinal function. Of the 97 species, 19 grew only in the wild, 8 species were both wild and cultivated, and 70 species were cultivated. Roots and fruits were the most commonly used plant parts in the preparation of CSCS. According to the national evaluation criteria, six of these species are listed on "China's red list" including two endangered, two critically endangered, one near-threatened, and one vulnerable species. The QI, FUI, and EI of the 97 species in the study varied between 0.09 and 1, 0.23 and 9.95, and 0.45 and 6.58, respectively. CONCLUSIONS: As an important part of Cantonese culture, CSCS has been popularized as a local cuisine with a healthcare function. CSCS also reflects the plant species richness and cultural diversity of Guangdong Province. Future research on the safety and efficacy of CSCS as well as on ecological and cultural conservation efforts is needed for the sustainable growth of China's botanical and medicinal plant industry. PMID- 29334975 TI - Molecular characterization of duck enteritis virus UL41 protein. AB - BACKGROUND: Duck enteritis virus (DEV) belongs to the subfamily Alphaherpesvirinae, and information on the DEV UL41 gene is limited. METHODS: The DEV UL41 gene was cloned into the pET32a(+) vector and expressed in a prokaryotic expression system. Antiserum was raised against a bacterially expressed UL41-His fusion protein for further experiments. Transcription was quantified and UL41 protein expression levels were determined in DEV-infected cells at different time points by RT-qPCR and western blotting, respectively. DEV virions were purified by sucrose gradient centrifugation and analyzed by mass spectrometry to identify protein content. We confirmed the DEV UL41 gene kinetic class using a pharmacological test. IFA was used to analyze the intracellular localization of pUL41. RESULTS: The recombinant expression plasmid, pET-32a(+)-UL41, which highly expresses a 76.0 kDa fusion protein, was constructed and expressed in E. coli BL21 (DE3) after induction with 0.2 mM IPTG at 30 degrees C for 10 h, generating a specific mouse anti-UL41 protein polyclonal antibody. RT-qPCR and western blot analyses revealed that the UL41 transcript number peaked at 36 hpi, and peak protein expression occurred at 48 hpi. The pharmacological test showed that UL41 was a gamma2 gene. Mass spectrometry analysis showed that pUL41 was a virion component. IFA results revealed that pUL41 was localized throughout DEV-infected cells but only localized to the cytoplasm of transfected cells. DEV pUL47 translocated pUL41 to the nuclei of DEF cells; this translocation was dependent on predicted pUL47 NLS signals (40-50 aa and 768-777 aa). CONCLUSIONS: DEV UL41 is a gamma2 gene that encodes a virion structural protein, pUL41 localizes throughout DEV-infected cells but only localizes to the cytoplasm of transfected cells. pUL41 cannot autonomously localize to the nucleus, as this nuclear localization is dependent on predicted DEV pUL47 NLS signals (40-50 aa and 768 777 aa). PMID- 29334977 TI - Ethnoecology of the interchange of wild and weedy plants and mushrooms in Phurepecha markets of Mexico: economic motives of biotic resources management. AB - BACKGROUND: Interactions between societies and nature are regulated by complex systems of beliefs, symbolism, customs, and worldviews (kosmos), ecological knowledge (corpus), and management strategies and practices (praxis), which are constructed as product of experiences and communication of people throughout time. These aspects influence social relations, life strategies, and cultural identity, and all of them in turn influence and are influenced by local and regional patterns of interchange. In this study, we analyze the interchange of wild and weedy plants and mushrooms in traditional markets of the Phurepecha region of Mexico. Particularly, the social relations constructed around the interchange of these products; how knowledge, cultural values, and ecological factors influence and are influenced by interchange; and how all these factors influence the type and intensity of biotic resources management. METHODS: We studied three main traditional markets of the Phurepecha region of Michoacan, Mexico, through 140 visits to markets and 60 semi-structured interviews to sellers of wild and weedy plants and mushrooms. In nearly 2 years, we carried out 80 visits and 30 interviews in the "Barter Market", 20 visits and 15 interviews in the "Phurepecha Tianguis", and 40 visits and 15 interviews to the "Municipal Market". We documented information about the spaces of interchange that form the markets, the types of interchange occurring there, the cultural and economic values of the resources studied, the environmental units that are sources of such resources, the activities associated to resources harvesting and, particularly, the management techniques practiced to ensure or increase their availability. We analyzed the relations between the amounts of products interchanged, considered as pressures on the resources; the perception of their abundance or scarcity, considered as the magnitude of risk in relation to the pressures referred to; and the management types as response to pressures and risk. RESULTS: We recorded 38 species of wild and weedy plants and 15 mushroom species interchanged in the markets. We characterized the spaces of interchange, the interchange types, and social relations among numerous Phurepecha communities which maintain the main features of pre-Columbian markets. The products analyzed are differentially valued according to their role in people's life, particularly food, medicine, rituals, and ornamental purposes. The highest cultural values were identified in multi-purpose plant and mushroom resources and, outstandingly, in ornamental and ritual plants. In markets, women are the main actors and connectors of the regional households' activities of use and management of local resources and ecosystems. The interrelationships between worldviews, knowledge, and practices are visible through the interchange of the products analyzed, including the types of environments comprised in communitarian territories, agricultural calendars, and feasts. Those plants and mushrooms are highly valued but relatively scarce according to the demand on them receiving special attention and management practices directed to ensure or increase their availability. With the exception of most mushrooms and ornamental and ritual plants, which have high economic and cultural values, there are those that are relatively scarce and under high risk, but are obtained through simple gathering from the wild. CONCLUSIONS: Traditional markets are crucial part of the subsistence strategy of Phurepecha people based on the multiple use of resources and ecosystems at the local and regional levels. The markets influence social relations, cultural identity, and preservation of traditional knowledge and biodiversity. In general, the demand of products in markets enhances innovation and practices for ensuring or increasing their availability, particularly those that are naturally scarce. However, it was notorious that, althoug mushrooms and ritual plants have high demand and value in markets, most of them are obtained by simple gathering. PMID- 29334978 TI - Plasma virome of cattle from forest region revealed diverse small circular ssDNA viral genomes. AB - BACKGROUND: Free-range cattle are common in the Northeast China area, which have close contact with farmers and may carry virus threatening to cattle and farmers. METHODS: Using viral metagenomics we analyzed the virome in plasma samples collected from 80 cattle from the forested region of Northeast China. RESULTS: The virome of cattle plasma is composed of the viruses belonging to the families including Parvoviridae, Papillomaviridae, Picobirnaviridae, and divergent viral genomes showing sequence similarity to circular Rep-encoding single stranded (CRESS) DNA viruses. Five such CRESS-DNA genomes were full characterized, with Rep sequences related to circovirus and gemycircularvirus. Three bovine parvoviruses belonging to two different genera were also characterized. CONCLUSION: The virome in plasma samples of cattle from the forested region of Northeast China was revealed, which further characterized the diversity of viruses in cattle plasma. PMID- 29334979 TI - Measuring spatial accessibility to healthcare services with constraint of administrative boundary: a case study of Yanqing District, Beijing, China. AB - BACKGROUND: The two-step floating catchment area (2SFCA) method, which is one of the most widely used methods for measuring healthcare spatial accessibility, defines the catchment area of each facility as the area within a certain distance from the facility. However, in some cases, the service utilization behavior is constrained by administrative boundaries, therefore the definition of catchment area within a certain distance may be inappropriate. METHODS: In this study, we aim to propose a modification of the 2SFCA method for measuring spatial accessibility to healthcare services in a system constrained by administrative boundaries. The proposed method defines the catchment areas of healthcare facilities within certain administrative units. The method is applied in a case study of the healthcare services in Yanqing District of Beijing, China. Three types of healthcare facilities, including general hospitals, community healthcare centers and stations, are included. RESULTS: Based on the sensitivity analysis of the distance-decay parameter beta, result of the beta = 1 scenario is relatively appropriate and is utilized for further analysis. The difference between spatial accessibility with or without constraint of administrative boundary is relatively significant. The results of the proposed model show that the village-level spatial accessibility to healthcare services shows a significant disparity, and the uneven distribution of general hospitals is the main cause. CONCLUSIONS: The constraint of administrative boundary has a significant impact on healthcare accessibility, which verifies the validity of the modification proposed by this study in empirical studies. The empirical results also lead to policy recommendations to improve healthcare equity in the study area. At the town level, the improvement of equity in healthcare accessibility could be achieved in two ways. First, the sizes of community healthcare centers in towns with small accessibility scores should be expanded. Second, new general hospitals can be built in the eastern part of Yanqing District. Within each town, to improve the equity in healthcare accessibility, community healthcare stations should be expanded or newly built in the periphery villages. PMID- 29334980 TI - Reoperation for a giant arch anastomotic pseudoaneurysm eleven years after total arch replacement with island reconstruction. AB - BACKGROUND: The long-term effects of some surgical treatment procedures of arch replacement for aortic dissection or aortic aneurysm are unknown. CASE PRESENTATION: The present study reports the case of a 68-year-old man admitted to our hospital for aortic arch anastomotic pseudoaneurysm with concomitant aortic root enlargement and coronary artery stenosis. Eleven years ago, at the age of 56 years, he underwent total arch replacement with island reconstruction for chronic aortic dissection. We performed a second total arch replacement, aortic root replacement, and coronary artery bypass, using a cardiopulmonary bypass with cannulation through the right subclavian artery, femoral artery, and femoral vein prior to re-sternotomy. We also used selective cerebral perfusion. Postoperatively, the patient temporarily required reintubation; however, he was discharged in good condition on the fiftieth postoperative day. CONCLUSIONS: This case suggests that island reconstruction has the potential to cause arch anastomotic pseudoaneurysms, particularly after a long postoperative period. PMID- 29334981 TI - Production of highly and broad-range specific monoclonal antibodies against hemagglutinin of H5-subtype avian influenza viruses and their differentiation by mass spectrometry. AB - BACKGROUND: The highly pathogenic avian influenza viruses of the H5 subtype, such as the H5N1 viral strains or the novel H5N8 and H5N2 reassortants, are of both veterinary and public health concern worldwide. To combat these viruses, monoclonal antibodies (mAbs) against H5 hemagglutinin (HA) play a significant role. These mAbs are effective diagnostic and therapeutic agents and powerful tools in vaccine development and basic scientific research. The aim of this study was to obtain diagnostically valuable mAbs with broad strain specificity against H5-subtype AIVs. RESULTS: We applied the hybridoma method to produce anti-HA mAbs. The cloning and screening procedures resulted in the selection of 7 mouse hybridoma cell lines and their respective antibody clones. Preliminary immunoreactivity studies showed that these newly established mAbs, all of the IgG1 isotype, had high specificity and broad-range activities against the H5 HAs. However, these studies did not allow for a clear distinction among the selected antibodies and mAb-secreting hybridoma clones. To differentiate the analyzed mAbs and determine the exact number of hybridoma clones, peptide mapping of the Fc and Fab fragments was performed using a Matrix-Assisted Laser Desorption Ionization Time of Flight (MALDI-TOF/TOF) mass spectrometer. Detailed analyses of the acquired MS and MS/MS spectra confirmed that the Fc fragments constituted highly conserved species- and isotype-immunoglobulin components, whereas the Fab fragments exhibited considerable variation in the sequences that determine antibody specificity. This approach enabled unambiguous characterization of the selected mAbs according to their peptide composition. As a result, 6 different clones were distinguished. CONCLUSIONS: Our work provided a unique panel of anti H5 HA mAbs, which meets the demand for novel, high-specificity analytical tools for use in serologic surveillance. Applications of these mAbs in areas other than diagnostics are also possible. Moreover, we demonstrated for the first time that peptide mapping of antibody fragments with mass spectrometry is an efficient method for the differentiation of antibody clones and relevant antibody-producing cell lines. The method may be successfully used to characterize mAbs at the protein level. PMID- 29334982 TI - Genome-wide identification, characterization and classification of ionotropic glutamate receptor genes (iGluRs) in the malaria vector Anopheles sinensis (Diptera: Culicidae). AB - BACKGROUND: Ionotropic glutamate receptors (iGluRs) are conserved ligand-gated ion channel receptors, and ionotropic receptors (IRs) were revealed as a new family of iGluRs. Their subdivision was unsettled, and their characteristics are little known. Anopheles sinensis is a major malaria vector in eastern Asia, and its genome was recently well sequenced and annotated. METHODS: We identified iGluR genes in the An. sinensis genome, analyzed their characteristics including gene structure, genome distribution, domains and specific sites by bioinformatic methods, and deduced phylogenetic relationships of all iGluRs in An. sinensis, Anopheles gambiae and Drosophila melanogaster. Based on the characteristics and phylogenetics, we generated the classification of iGluRs, and comparatively analyzed the intron number and selective pressure of three iGluRs subdivisions, iGluR group, Antenna IR and Divergent IR subfamily. RESULTS: A total of 56 iGluR genes were identified and named in the whole-genome of An. sinensis. These genes were located on 18 scaffolds, and 31 of them (29 being IRs) are distributed into 10 clusters that are suggested to form mainly from recent gene duplication. These iGluRs can be divided into four groups: NMDA, non-NMDA, Antenna IR and Divergent IR based on feature comparison and phylogenetic analysis. IR8a and IR25a were suggested to be monophyletic, named as Putative in the study, and moved from the Antenna subfamily in the IR family to the non-NMDA group as a sister of traditional non-NMDA. The generated iGluRs of genes (including NMDA and regenerated non-NMDA) are relatively conserved, and have a more complicated gene structure, smaller omega values and some specific functional sites. The iGluR genes in An. sinensis, An. gambiae and D. melanogaster have amino-terminal domain (ATD), ligand binding domain (LBD) and Lig_Chan domains, except for IR8a that only has the LBD and Lig_Chan domains. However, the new concept IR family of genes (including regenerated Antenna IR, and Divergent IR), especially for Divergent IR are more variable, have a simpler gene structure (intron loss phenomenon) and larger omega values, and lack specific functional sites. These IR genes have no other domains except for Antenna IRs that only have the Lig_Chan domain. CONCLUSIONS: This study provides a comprehensive information framework for iGluR genes in An. sinensis, and generated the classification of iGluRs by feature and bioinformatics analyses. The work lays the foundation for further functional study of these genes. PMID- 29334983 TI - An individually tailored family-centered intervention for pediatric obesity in primary care: study protocol of a randomized type II hybrid effectiveness implementation trial (Raising Healthy Children study). AB - BACKGROUND: Pediatric obesity is a multi-faceted public health concern that can lead to cardiovascular diseases, cancers, and early mortality. Small changes in diet, physical activity, or BMI can significantly reduce the possibility of developing cardiometabolic risk factors. Family-based behavioral interventions are an underutilized, evidence-based approach that have been found to significantly prevent excess weight gain and obesity in children and adolescents. Poor program availability, low participation rates, and non-adherence are noted barriers to positive outcomes. Effective interventions for pediatric obesity in primary care are hampered by low family functioning, motivation, and adherence to recommendations. METHODS: This (type II) hybrid effectiveness-implementation randomized trial tests the Family Check-Up 4 Health (FCU4Health) program, which was designed to target health behavior change in children by improving family management practices and parenting skills, with the goal of preventing obesity and excess weight gain. The FCU4Health is assessment driven to tailor services and increase parent motivation. A sample of 350 families with children aged 6 to 12 years who are identified as overweight or obese (BMI >= 85th percentile for age and gender) will be enrolled at three primary care clinics [two Federally Qualified Healthcare Centers (FQHCs) and a children's hospital]. All clinics serve predominantly Medicaid patients and a large ethnic minority population, including Latinos, African Americans, and American Indians who face disparities in obesity, cardiometabolic risk, and access to care. The FCU4Health will be coordinated with usual care, using two different delivery strategies: an embedded approach for the two FQHCs and a referral model for the hospital-based clinic. To assess program effectiveness (BMI, body composition, child health behaviors, parenting, and utilization of support services) and implementation outcomes (such outcomes as acceptability, adoption, feasibility, appropriateness, fidelity, and cost), we use a multi-method and multi-informant assessment strategy including electronic health record data, behavioral observation, questionnaires, interviews, and cost capture methods. DISCUSSION: This study has the potential to prevent excess weight gain, obesity, and health disparities in children by establishing the effectiveness of the FCU4Health and collecting information critical for healthcare decision makers to support sustainable implementation of family-based programs in primary care. TRIAL REGISTRATION: NCT03013309 ClinicalTrials.gov. PMID- 29334984 TI - New insights into ANGPLT3 in controlling lipoprotein metabolism and risk of cardiovascular diseases. AB - Dyslipidemia, characterized by elevation of plasma low density lipoprotein cholesterol (LDL-C), triglyceride (TG) and reduction of plasma high density lipoprotein cholesterol (HDL-C), has been verified as a causal risk factor for cardiovascular diseases (CVD), leading to a high mortality rate in general population. It is important to understand the molecular metabolism underlying dyslipidemia in order to reduce the risk and to develop effective therapeutic approaches against CVD. ANGPTL3 (human) or Angptl3 (mouse), one member of the angiopoietin-like protein (ANGPTL) family, has been identified as an important regulator of lipid metabolism by inhibiting LPL and EL activity. Results have demonstrated that inactivation of Angptl3 in mice could obviously reduce the level of TG, LDL-C and the atherosclerotic lesion size, leading to a lower risk for dyslipidemia and CVD. Additionally, in humans, carriers with homozygous LOF mutations in ANGPTL3 have lower plasma LDL-C, TG levels and lower risk of atherosclerosis compared to the non-carriers. Here, we collect the latest data and results, giving a new insight into the important role of ANGPTL3 in controlling lipoprotein metabolism. Finally, we introduce two update reports on the antisense oligonucleotide and monoclonal antibody-based inactivation of ANGPTL3 in human clinical trials, to identify that ANGPTL3 could be a novel and effective target for the treatment of dyslipidemia and CVD. PMID- 29334985 TI - Role of sleep duration and sleep-related problems in the metabolic syndrome among children and adolescents. AB - BACKGROUND: There is increasing recognition that sleep is a risk factor for metabolic syndrome (MetS). The aim of the present study was to analyze the relationship between self-reported sleep duration, sleep-related problems and the presence of MetS in children and adolescents from Bogota, D.C., Colombia. METHODS: This is a cross-sectional analysis from the FUPRECOL study (2014-15). Participants included 2779 (54.2% girls) youth from Bogota (Colombia). MetS was defined as the presence of >=3 of the metabolic abnormalities (hyperglycemia, hypertriglyceridemia, low high-density lipoprotein cholesterol [HDL-c], hypertension, and increased waist circumference) according to the criteria of de Ferranti/Magge and colleges. Self-reported sleep duration and sleep-related problems were assessed with the BEARS questionnaire. RESULTS: Logistic regression analysis showed that boys who meet recommended duration of sleep had a decreased risk of elevated blood glucose levels (Odds Ratio [OR] = 0.71, 95%CI [0.40-0.94]; p = 0.031) compared to boys who have short-long sleep duration. Also, compared to young without sleep problems, excessive sleepiness during the day was related to low HDL-c levels in boys (OR = 1.36, 95%CI [1.02-1.83]; p = 0.036) and high triglyceride levels in girls (OR = 1.28, 95%CI [1.01-1.63]; p = 0.045). Girls with irregular sleep patterns had decreased HDL-c levels (OR = 0.71, 95%CI [0.55 0.91]; p = 0.009). CONCLUSIONS: Recommended sleep duration was associated with a decreased risk of elevated fasting glucose levels in boys, and sleep problems was related to lower HDL-c in girls and higher triglyceride levels in boys. These findings suggested the clinical importance of improving sleep hygiene to reduce metabolic risk factors in children and adolescents. PMID- 29334987 TI - Representative survey on idiopathic environmental intolerance attributed to electromagnetic fields in Taiwan and comparison with the international literature. AB - BACKGROUND: Electromagnetic hypersensitivity refers to health effects attributed to electromagnetic fields (EMF) exposure and has been formally named "idiopathic environmental intolerance attributed to electromagnetic fields" (IEI-EMF) by the World Health Organization. Because of the growing use of cell phones, IEI-EMF has become a global public health concern. A survey in 2007 in Taiwan showed that the prevalence rate of IEI-EMF was 13.3%, which is higher than rates in studies conducted previously. The survey also found that the rate was higher in women. METHODS: To evaluate whether the prevalence rate of IEI-EMF is increasing and to verify the higher risk in women, we conducted a nationwide questionnaire survey using the same methods as the 2007 survey to assess the change in the prevalence rate of IEI-EMF in Taiwan. We also conducted a review of the literature and a meta-analysis to evaluate the changes in the prevalence rate around the world. RESULTS: On the basis of the representative sample of 3303 participants, we found that the prevalence rate of IEI-EMF in Taiwan declined from 13.3% to 4.6% over a period of 5 years. The literature review also found the prevalence rates in other countries to be decreasing, instead of increasing as predicted previously. The meta-analysis of the data from the literature showed that women are more likely to have IEI-EMF than men, with an odds ratio of 1.19 (95% confidence interval: 1.01-1.40). CONCLUSIONS: We found the prevalence rate of IEI-EMF has been declining, instead of increasing as predicted previously. Women are more likely to report having IEI-EMF than men. Further studies to explore the causes leading to the declines may help the public, scientific community, and government deal with idiopathic intolerance to other environmental exposures. PMID- 29334986 TI - Bridging pro-inflammatory signals, synaptic transmission and protection in spinal explants in vitro. AB - Multiple sclerosis is characterized by tissue atrophy involving the brain and the spinal cord, where reactive inflammation contributes to the neurodegenerative processes. Recently, the presence of synapse alterations induced by the inflammatory responses was suggested by experimental and clinical observations, in experimental autoimmune encephalomyelitis mouse model and in patients, respectively. Further knowledge on the interplay between pro-inflammatory agents, neuroglia and synaptic dysfunction is crucial to the design of unconventional protective molecules. Here we report the effects, on spinal cord circuits, of a cytokine cocktail that partly mimics the signature of T lymphocytes sub population Th1. In embryonic mouse spinal organ-cultures, containing neuronal cells and neuroglia, cytokines induced inflammatory responses accompanied by a significant increase in spontaneous synaptic activity. We suggest that cytokines specifically altered signal integration in spinal networks by speeding the decay of GABAA responses. This hypothesis is supported by the finding that synapse protection by a non-peptidic NGF mimetic molecule prevented both the changes in the time course of GABA events and in network activity that were left unchanged by the cytokine production from astrocytes and microglia present in the cultured tissue. In conclusion, we developed an important tool for the study of synaptic alterations induced by inflammation, that takes into account the role of neuronal and not neuronal resident cells. PMID- 29334988 TI - Epidermal Wnt signalling regulates transcriptome heterogeneity and proliferative fate in neighbouring cells. AB - BACKGROUND: Canonical Wnt/beta-catenin signalling regulates self-renewal and lineage selection within the mammalian epidermis. Although the transcriptional response of keratinocytes that receive a Wnt signal is well characterized, little is known about the mechanism by which keratinocytes in proximity to the Wnt receiving cell are co-opted to undergo a change in cell fate. RESULTS: To address this, we perform single-cell RNA-sequencing on mouse keratinocytes co-cultured with and without beta-catenin-activated neighbouring cells. We identify five distinct cell states in cultures that had not been exposed to the beta-catenin stimulus and show that the stimulus redistributes wild-type subpopulation proportions. Using temporal single-cell analysis, we reconstruct the cell fate change induced by Wnt activation from neighbouring cells. Gene expression heterogeneity is reduced in neighbouring cells and this effect is most dramatic for protein synthesis-associated genes. Changes in gene expression are accompanied by a shift to a more proliferative stem cell state. By integrating imaging and reconstructed sequential gene expression changes during the state transition we identify transcription factors, including Smad4 and Bcl3, that are responsible for effecting the transition in a contact-dependent manner. CONCLUSIONS: Our data indicate that non-cell autonomous Wnt/beta-catenin signalling decreases transcriptional heterogeneity. This furthers our understanding of how epidermal Wnt signalling orchestrates regeneration and self renewal. PMID- 29334989 TI - Implantation of a 3D-printed titanium sternum in a patient with a sternal tumor. AB - BACKGROUND: Primary malignant or metastatic sternal tumors are uncommon. A subtotal or total sternectomy can offer a radical form of treatment. The issue is to restore the structural integrity of the chest wall. CASE PRESENTATION: We report the implantation of an individualized 3D-printed titanium sternum in a patient with a sternal tumor. CONCLUSIONS: We believe that tridimensional print technologies may also change the strategy of chest wall reconstruction. PMID- 29334990 TI - Performance evaluation of existing immunoassays for Clonorchis sinensis infection in China. AB - BACKGROUND: Clonorchiasis ranks among the most important food-borne parasitic diseases in China. However, due to low compliance to traditional fecal examination techniques in the general population and medical personnel, immunodiagnosis is expected. This study evaluated, in parallel, the performance of four immunodiagnostic kits detecting clonorchiasis in China. RESULTS: A bank with 475 sera was established in this study. Except for the low performance of the kit detecting IgM, the other three kits detecting IgG showed sensitivities ranging from 81.51% (194/238) to 99.16% (236/238). Higher sensitivity was presented in heavy infection intensity [89.47% (68/76) to 100% (76/76)]. Among the four kits, the overall specificity varied from 73.42% (174/237) to 87.34% (207/237). It was observed that the specificity was lower in the sera of the participants living in clonorchiasis-endemic areas but without any parasite infection [67.5% (81/120) to 90% (108/120)], as compared to those from the non endemic area [94% (47/50) to 98% (49/50)]. The cross-reaction rate varied from 14.93% (10/67) to 31.34% (21/67). Youden's index was -0.022, 0.689, 0.726, and 0.802 for kits T1, T2, T3 and T4, respectively. Repeatability was high in all four kits. CONCLUSIONS: Three immunodiagnosis kits targeting IgG antibody had high performance on detecting chronic Clonorchis sinensis infection, but that detecting IgM antibody had not. The kits detecting IgG antibody also showed high sensitivity in heavy infection intensity. Research on immunological diagnosis of clonorchiasis is expected to be strengthened to improve the sensitivity in light infection and specificity. PMID- 29334992 TI - The efficacy of a multimodal physical activity intervention with supervised exercises, health coaching and an activity monitor on physical activity levels of patients with chronic, nonspecific low back pain (Physical Activity for Back Pain (PAyBACK) trial): study protocol for a randomised controlled trial. AB - BACKGROUND: Physical activity plays an important role in the management of chronic low back pain (LBP). Engaging in an active lifestyle is associated with a better prognosis. Nevertheless, there is evidence to suggest that patients with chronic LBP are less likely to meet recommended physical activity levels. Furthermore, while exercise therapy has been endorsed by recent clinical practice guidelines, evidence from systematic reviews suggests that its effect on pain and disability are at best moderate and not sustained over time. A limitation of current exercises programmes for chronic LBP is that these programmes are not designed to change patients' behaviour toward an active lifestyle. Therefore, we will investigate the short- and long-term efficacy of a multimodal intervention, consisting of supervised exercises, health coaching and use of an activity monitor (i.e. Fitbit Flex) compared to supervised exercises plus sham coaching and a sham activity monitor on physical activity levels, pain intensity and disability, in patients with chronic, nonspecific LBP. METHODS: This study will be a two-group, single-blind, randomised controlled trial. One hundred and sixty adults with chronic, nonspecific LBP will be recruited. Participants allocated to both groups will receive a group exercise programme. In addition, the intervention group will receive health coaching sessions (i.e. assisting the participants to achieve their physical activity goals) and an activity monitor (i.e. Fitbit Flex). The participants allocated to the control group will receive sham health coaching (i.e. encouraged to talk about their LBP or other problems, but without any therapeutic advice from the physiotherapist) and a sham activity monitor. Outcome measures will be assessed at baseline and at 3, 6 and 12 months post randomisation. The primary outcomes will be physical activity, measured objectively with an accelerometer, as well as pain intensity and disability at 3 months post randomisation. Secondary outcomes will be physical activity, pain intensity and disability at 6 and 12 months post randomisation as well as other self-report measures of physical activity and sedentary behaviour, depression, quality of life, pain self-efficacy and weight-related outcomes at 3, 6, and 12 months post randomisation. DISCUSSION: This study is significant as it will be the first study to investigate whether a multimodal intervention designed to increase physical activity levels reduces pain and disability, and increases physical activity levels compared to a control intervention in patients with chronic LBP. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT03200509 . Registered on 28 June 2017. PMID- 29334991 TI - Role of the nervous system in cancer metastasis. AB - Cancer remains as one of the leading cause of death worldwide. The development of cancer involves an intricate process, wherein many identified and unidentified factors play a role. Although most studies have focused on the genetic abnormalities which initiate and promote cancer, there is overwhelming evidence that tumors interact within their environment by direct cell-to-cell contact and with signaling molecules, suggesting that cancer cells can influence their microenvironment and bidirectionally communicate with other systems. However, only in recent years the role of the nervous system has been recognized as a major contributor to cancer development and metastasis. The nervous system governs functional activities of many organs, and, as tumors are not independent organs within an organism, this system is integrally involved in tumor growth and progression. PMID- 29334993 TI - Quality of life in mucopolysaccharidoses: construction of a specific measure using the focus group technique. AB - OBJECTIVE: To describe the perceptions of patients, their caregivers, and their healthcare providers to the development of a new specific instrument for assessment of the quality of life (QoL) in patients with mucopolysaccharidoses (MPS) using a qualitative focus group (FG) design. FGs were held in two Brazilian states (Rio Grande do Sul and Rio de Janeiro). RESULTS: Three versions of the new instrument were developed, each for a different age group: children (age 8-12 years), adolescents (age 13-17), and adults (age >= 18). The FGs mostly confirmed the relevance of items. All FGs unanimously agreed on the facets: School, Happiness, Life Prospects, Religiosity, Pain, Continuity of Treatment, Trust in Treatment, Relationship with Family, Relationship with Healthcare Providers, Acceptance, and Meaning of Life. The overall concept of QoL (as proposed by the WHO-World Health Organization) and its facets apply to this patient population. However, other specific facets-particularly concerning clinical manifestations and the reality of the disease-were suggested, confirming the need for the development of a specific QoL instrument for MPS. PMID- 29334994 TI - The relationship between home- and individual-level diet quality among African American and Hispanic/Latino households with young children. AB - BACKGROUND: The quality of most Americans' diets is far from optimal. Given that many Americans consume a significant portion of calories in the home, intervening in this setting could be beneficial. However, the relationship between the home food environment and diet quality is not well understood. This study examined the relationship between diet quality at the individual level with home-level diet quality using an index that measures compliance with federal dietary guidance. METHODS: This was a cross sectional study that enrolled 97 African American and Hispanic/Latino low-income parent-child dyads. Diet quality at the individual level was assessed through two 24-h dietary recalls collected for parents and children, respectively. Diet quality at the home level was assessed with two home food inventories conducted in participants' homes. Diet quality scores at the home and individual levels were computed by applying the Healthy Eating Index 2010 (HEI-2010) to these data. Linear models adjusted for potential confounding factors were used to examine the relationship between diet quality at the home and individual levels. RESULTS: Total HEI-2010 scores from parents and children's diets were positively associated with HEI-2010 scores based on home food inventories (parent diet: beta: 0.36, 95% CI: 012-0.60; child diet: 0.38 95% CI: 013-0.62). Positive associations were also observed between individual level and home level subcomponent HEI-2010 scores for total fruit (parent: 0.55 95% CI: 0.16-0.94; child: 0.49 95% CI: 0.03-0.94), whole fruit (parent only: 0.41 95% CI: 0.07-0.74), greens and beans (parent only: 0.39 95% CI: 0.05-0.74), and whole grain (children only: 0.33 95% CI: 0.04-0.63). CONCLUSION: This study demonstrated that individual level diet quality was positively associated with home-level diet quality. Findings from this study can help us to address modifiable targets of intervention in the home to improve diet quality. PMID- 29334995 TI - Antisense suppression of the nonsense mediated decay factor Upf3b as a potential treatment for diseases caused by nonsense mutations. AB - BACKGROUND: About 11% of all human genetic diseases are caused by nonsense mutations that generate premature translation termination codons (PTCs) in messenger RNAs (mRNA). PTCs not only lead to the production of truncated proteins, but also often result in decreased mRNA abundance due to nonsense mediated mRNA decay (NMD). Although pharmacological inhibition of NMD could be an attractive therapeutic approach for the treatment of diseases caused by nonsense mutations, NMD also regulates the expression of 10-20% of the normal transcriptome. RESULTS: Here, we investigate whether NMD can be inhibited to stabilize mutant mRNAs, which may subsequently produce functional proteins, without having a major impact on the normal transcriptome. We develop antisense oligonucleotides (ASOs) to systematically deplete each component in the NMD pathway. We find that ASO-mediated depletion of each NMD factor elicits different magnitudes of NMD inhibition in vitro and are differentially tolerated in normal mice. Among all of the NMD factors, Upf3b depletion is well tolerated, consistent with previous reports that UPF3B is not essential for development and regulates only a subset of the endogenous NMD substrates. While minimally impacting the normal transcriptome, Upf3b-ASO treatment significantly stabilizes the PTC containing dystrophin mRNA in mdx mice and coagulation factor IX mRNA in a hemophilia mouse model. Furthermore, when combined with reagents promoting translational read-through, Upf3b-ASO treatment leads to the production of functional factor IX protein in hemophilia mice. CONCLUSIONS: These data demonstrate that ASO-mediated reduction of the NMD factor Upf3b could be an effective and safe approach for the treatment of diseases caused by nonsense mutations. PMID- 29334997 TI - Effects of three frequencies of self-monitored blood glucose on HbA1c and quality of life in patients with type 2 diabetes with once daily insulin and stable control: a randomized trial. AB - OBJECTIVE: The optimal frequency of self-monitoring of blood glucose (SMBG) in patients with type 2 diabetes (T2DM) with stable glycemic control is unknown. This study investigated effects of 3 frequencies of SMBG on glycemic control and quality of life after 9 months in patients using one long-acting insulin injection a day. In an open-label, multi-center, primary-care, parallel (1:1:1) randomized trial in the Netherlands including patients with T2DM, HbA1c <= 58 mmol/mol (<= 7.5%), stable glycemic control, treated with one insulin injection daily, three frequencies of 4-point glucose measurements (before meals and bedtime) were weekly (n = 22), every 2 weeks (n = 16) and monthly (n = 20) were compared. RESULTS: A total of 58 patients with T2DM were included by 38 general practitioners, which was lower then anticipated. There were no significant between group differences in HbA1c (mmol/mol); group C compared to A and B; - 2.7 (95% CI - 6.4, 1.0) and - 1.0 (95% CI - 4.9, 3.0) and quality of life. Baring in mind the lower than anticipated inclusion rate, there were no significant differences in HbA1c and quality of life between three different frequencies of SMBG in patients with stable glycemic control using one long-acting insulin injection. Trial registration NCT01460459, registered 10-2011, recruitment between 05-2011 and 12-2011. PMID- 29334998 TI - Examining human paragonimiasis as a differential diagnosis to tuberculosis in The Gambia. AB - OBJECTIVE: Paragonimiasis is a foodborne trematode infection of the lungs caused by Paragonimus spp., presenting clinically with similar symptoms to active tuberculosis (TB). Worldwide, an estimated 20.7 million people are infected with paragonimiasis, but relatively little epidemiological data exists for Africa. Given a recently reported case, we sought to establish whether paragonimiasis should be considered as an important differential diagnosis for human TB in The Gambia, West Africa. RESULTS: We developed a novel PCR-based diagnostic test for Paragonimus species known to be found in West Africa, which we used to examine archived TB negative sputum samples from a cross-sectional study of volunteers with tuberculosis-like symptoms from communities in the Western coastal region of The Gambia. Based on a "zero patient" design for detection of rare diseases, 300 anonymised AFB smear negative sputum samples, randomly selected from 25 villages, were screened for active paragonimiasis by molecular detection of Paragonimus spp. DNA. No parasite DNA was found in any of the sputa of our patient group. Despite the recent case report, we found no evidence of active paragonimiasis infection masking as TB in the Western region of The Gambia. PMID- 29334996 TI - Italian guidelines on the assessment and management of pediatric head injury in the emergency department. AB - OBJECTIVE: We aim to formulate evidence-based recommendations to assist physicians decision-making in the assessment and management of children younger than 16 years presenting to the emergency department (ED) following a blunt head trauma with no suspicion of non-accidental injury. METHODS: These guidelines were commissioned by the Italian Society of Pediatric Emergency Medicine and include a systematic review and analysis of the literature published since 2005. Physicians with expertise and experience in the fields of pediatrics, pediatric emergency medicine, pediatric intensive care, neurosurgery and neuroradiology, as well as an experienced pediatric nurse and a parent representative were the components of the guidelines working group. Areas of direct interest included 1) initial assessment and stabilization in the ED, 2) diagnosis of clinically important traumatic brain injury in the ED, 3) management and disposition in the ED. The guidelines do not provide specific guidance on the identification and management of possible associated cervical spine injuries. Other exclusions are noted in the full text. CONCLUSIONS: Recommendations to guide physicians practice when assessing children presenting to the ED following blunt head trauma are reported in both summary and extensive format in the guideline document. PMID- 29334999 TI - The plant alkaloid tetrandrine inhibits metastasis via autophagy-dependent Wnt/beta-catenin and metastatic tumor antigen 1 signaling in human liver cancer cells. AB - BACKGROUND: Tetrandrine is a bisbenzylisoquinoline alkaloid isolated from the Chinese medicinal herb Stephania tetrandra S. Moore. We previously demonstrated that tetrandrine exhibits potent antitumor effects in many types of cancer cells. In this study, we investigated the effects of tetrandrine on human hepatocellular carcinoma (HCC) metastasis. METHODS: The invasion and migration effects were evaluated via wound healing and transwell assays. Immunofluorescence and western blotting analyses were used to investigate the levels of epithelial-mesenchymal transition (EMT)-related protein. A metastasis model was established to investigate the inhibitory effect of tetrandrine on hepatocellular carcinoma metastasis in vivo. RESULTS: Tetrandrine inhibits HCC invasion and migration by preventing cell EMT. The underlying mechanism was closely associated with tetrandrine-induced human liver cell autophagy, which inhibits Wnt/beta-catenin pathway activity and decreases metastatic tumor antigen 1 (MTA1) expression to modulate cancer cell metastasis. CONCLUSION: Our findings demonstrate, for the first time, that tetrandrine plays a significant role in the inhibition of human hepatocellular carcinoma metastasis and provide novel insights into the application of tetrandrine in clinical HCC treatment. PMID- 29335001 TI - Different clinical presentation and management of temporal bone fibrous dysplasia in children. AB - BACKGROUND: Fibrous dysplasia is a slowly progressive benign fibro-osseous disorder that involves one or multiple bones with a unilateral distribution in most cases. It is a lesion of unknown etiology, uncertain pathogenesis, and diverse histopathology. Temporal bone involvement is the least frequently reported type, especially in children. We reviewed available articles regarding fibrous dysplasia with temporal bone involvement in children and added four patients aged 7 to 17 years who were diagnosed and treated in our institution from 2006 to 2017. The patients' clinical picture comprised head deformity, external canal stenosis, headache, progressive conductive and/or sensorineural hearing loss, tinnitus, and sudden deafness. Two patients had experienced severe episodic vertigo with nausea and vomiting. Two were referred to us with external canal obstruction and secondary cholesteatoma formation with broad middle ear destruction. One was diagnosed with acute mastoiditis and intracranial complications. Optimal management of fibrous dysplasia is unclear and can be challenging, especially in children. In our two patients with disease expansion and involvement of important structures, surgical treatment was abandoned and a "wait-and-scan" policy was applied. The other two were qualified for surgical treatment. One patient underwent two surgeries: modified lateral petrosectomy (canal left open) with pathological tissue removal, cavity obliteration, and subsequent tympanoplasty. Another patient with extensive destruction of the left temporal bone underwent canal wall down mastoidectomy with perisinus abscess drainage and revision 12 months later. Tympanoplasty was unsatisfactory in both patients because of slow progression of the middle ear pathology. None of our patients underwent pharmacological treatment. CONCLUSIONS: In younger patients, observation and a "wait-and-scan" protocol is relevant until significant function, or cosmetic deficits are obvious. Surgery is not preferred and should be delayed until puberty because fibrous dysplasia has a tendency to stabilize after adolescence. In patients with severe symptoms medical treatment can be implemented, but safety of this treatment in children remain controversial. PMID- 29335000 TI - Molecular characterization of Babesia microti thioredoxin (BmTrx2) and its expression patterns induced by antiprotozoal drugs. AB - BACKGROUND: Human babesiosis is an infectious disease that is epidemic in various regions all over the world. The predominant causative pathogen of this disease is the intra-erythrocytic parasite Babesia microti. The thioredoxin system is one of the major weapons that is used in the resistance to the reactive oxygen species (ROS) and reactive nitrogen species (RNS) produced by host immune system. In other intra-erythrocytic apicomplexans like the malaria parasite Plasmodium falciparum, anti-oxidative proteins are promising targets for the development of anti-parasitic drugs. However, to date, the sequences and biological properties of thioredoxins and thioredoxin-like molecules of B. microti remain unknown. Understanding the molecular characterization and function of B. microti thioredoxins may help to develop anti-Babesia drugs and controlling babesiosis. METHODS: The full-length B. microti thioredoxin 2 (BmTrx2) gene was obtained using a rapid amplification of cDNA ends (RACE) method, and the deduced BmTrx2 amino acid sequence was analyzed using regular bioinformatics tools. Recombinant BmTrx2 protein was expressed in vitro and purified using His-tag protein affinity chromatography resins. Reverse transcription PCR, quantitative real-time PCR and Western blot were employed to detect the expression and native proteins of BmTrx2. Indirect immunofluorescence assay was used to localize BmTrx2 in B. microti. Bovine insulin reduction assays were used to determine the enzyme activity of the purified recombinant BmTrx2 protein. RESULTS: The full-length BmTrx2 was 564 bp with a 408 bp open reading frame encoding a protein of 135 amino acids. The predicted molecular weight of the protein was 15.5 kDa. A conserved thioredoxin-like family domain was found in BmTrx2. The expression of BmTrx2 was upregulated on both the third and eighth day post-infection in mice, whereas expression was downregulated during the beginning and later stages. The results of Western blot analysis showed the native BmTrx2 in parasite lysates could be detected by mouse anti-BmTrx2 serum and that the recombinant BmTrx2 protein could be recognized by serum of B. microti-infected mice. Immunofluorescence microscopy showed that BmTrx2 localized in the cell cytoplasm of B. microti merozoites in B. microti-infected red blood cells. The results of bovine insulin reduction assay indicated the purified recombinant BmTrx2 protein possesses antioxidant enzyme activity. Dihydroartemisinin and quinine, known anti malaria drugs, and clindamycin, a known anti-babesiosis drug, induced significantly higher upregulation of BmTrx2 mRNA. CONCLUSIONS: Our results indicate that BmTrx2 is a functional enzyme with antioxidant activity and may be involved in the response of B. microti to anti-parasite drugs. PMID- 29335002 TI - Leishmania mortality in sand fly blood meal is not species-specific and does not result from direct effect of proteinases. AB - BACKGROUND: Leishmania development in sand flies is confined to the alimentary tract and is closely connected with blood meal digestion. Previously, it has been published that activities of sand fly midgut proteases are harmful to Leishmania, especially to amastigote-promastigote transition forms. However, our experiments with various Leishmania-sand fly pairs gave quite opposite results. METHODS: We evaluated the effect of semi-digested midgut content on different life stages of Leishmania donovani and Leishmania major in vitro. Various morphological forms of parasites, including macrophage-derived amastigotes and transition forms, were incubated 2 h with midguts dissected at various intervals (6-72 h) post-blood meal or with commercially available proteinase, and their viability was determined using flow cytometry. In parallel, using amastigote-initiated experimental infections, we compared development of L. donovani in sand flies that are either susceptible (Phlebotomus argentipes and P. orientalis) or refractory (P. papatasi and Sergentomyia schwetzi) to this parasite. RESULTS: In vitro, sand fly midgut homogenates affected L. major and L. donovani in a similar way; in all sand fly species, the most significant mortality effect was observed by the end of the blood meal digestion process. Surprisingly, the most susceptible Leishmania stages were promastigotes, while mortality of transforming parasites and amastigotes was significantly lower. Parasites were also susceptible to killing by rabbit blood in combination with proteinase, but resistant to proteinase itself. In vivo, L. donovani developed late-stage infections in both natural vectors; in P. argentipes the development was much faster than in P. orientalis. On the other hand, in refractory species P. papatasi and S. schwetzi, promastigotes survived activity of digestive enzymes but were lost during defecation. CONCLUSIONS: We demonstrated that Leishmania transition forms are more resistant to the killing effect of semi-digested blood meal than 24 h-old promastigotes. Data suggest that Leishmania mortality is not caused directly by sand fly proteases, we assume that this mortality results from toxic products of blood meal digestion. Survival of L. donovani promastigotes in refractory sand flies until blood meal defecation, together with similar mortality of Leishmania parasites incubated in vitro with midgut homogenates of susceptible as well as refractory species, contradict the previously raised hypotheses about the role of midgut proteases in sand fly vector competence to Leishmania. PMID- 29335003 TI - Antihypertensive medication adherence and associated factors among adult hypertensive patients at Jimma University Specialized Hospital, southwest Ethiopia. AB - BACKGROUND: Adherence to antihypertensive medications is a key component to control blood pressure levels. Poor adherence to these medications leads to the development of hypertensive complications and increase risk of cardiovascular events which in turn reduces the ultimate clinical outcome. The purpose of this study was to assess antihypertensive medication adherence and associated factors among adult hypertensive patients. A hospital-based cross-sectional study among adult hypertensive patients was conducted at hypertensive follow-up clinic of Jimma University Specialized Hospital from March 4, 2015 to April 3, 2015. A simple random sampling technique was used to select the study participants from the study population. The study patients were interviewed and their medical charts were reviewed using a pretested structured questionnaire. Adherence was assessed using Morisky Medication Adherence Scale-8 (MMAS-8) and MMAS-8 score less than 6 was considered as non-adherent and MMAS-8 score was >= 6 was declared as adherence. Factors associated with adherence were identified using binary and multivariate logistic regression analysis. Crude odds ratio, adjusted odds ratio (AOR) and 95% confidence interval of the odds ratio were calculated using SPSS version 21. Variables with p-value less than 0.05 were assumed as statistically significant factors. RESULTS: Among 280 hypertensive patients, 61.8% of the study participants were found to be adherent. More than half (53.2%) of the participants were males and the mean age of the participants was 55.0 +/- 12.7 years. Co-morbidity (AOR = 0.083, 95% CI = 0.033-0.207, p < 0.001), alcohol intake (AOR = 0.011, 95% CI = 0.002-0.079, p < 0.001), getting medications freely (AOR = 0.020, 95% CI = 0.003-0.117, p < 0.001), and combination of antihypertensive medications (AOR = 0.32, 95% CI = 0.144-0.712, p < 0.005) were inversely associated with antihypertensive medication adherence. CONCLUSION: The adherence level to the prescribed antihypertensive medications was found to be sub-optimal according to the MMAS-8, and influenced by co morbidity, alcohol intake, self-purchasing of the medications and combination of antihypertensive medications. PMID- 29335004 TI - Factors associated with poor treatment outcome of tuberculosis in Debre Tabor, northwest Ethiopia. AB - OBJECTIVE: Directly observed treatment short course has been implemented as part of the national tuberculosis control program in Ethiopia. The strategy, as evidenced by different studies, has improved the survival and treatment success rate of tuberculosis patients. However, some patients failed to complete their treatments and the factors for this failure were not assessed in the study area. We, therefore sought to identify factors associated with poor treatment outcome of tuberculosis in Debre Tabor, northwest Ethiopia. RESULTS: We included 303 patients (173 males, 130 females) with mean age of 34.9 years in the study and 39 (12.9%) patients were with poor treatment outcome over the period of 5 years (2008-2013). Being male, urban residency, positive and unknown smear result at the 2nd month of treatment and patients in the age of 35-44 years were more likely to have poor treatment outcomes than their counterparts. Patients in the new treatment category were less likely to have poor treatment outcome compared to the retreated cases. Further studies are recommended to explore the association of poor treatment outcome with other important factors which are not investigated by this study. PMID- 29335005 TI - In-depth resistome analysis by targeted metagenomics. AB - BACKGROUND: Antimicrobial resistance is a major global health challenge. Metagenomics allows analyzing the presence and dynamics of "resistomes" (the ensemble of genes encoding antimicrobial resistance in a given microbiome) in disparate microbial ecosystems. However, the low sensitivity and specificity of available metagenomic methods preclude the detection of minority populations (often present below their detection threshold) and/or the identification of allelic variants that differ in the resulting phenotype. Here, we describe a novel strategy that combines targeted metagenomics using last generation in solution capture platforms, with novel bioinformatics tools to establish a standardized framework that allows both quantitative and qualitative analyses of resistomes. METHODS: We developed ResCap, a targeted sequence capture platform based on SeqCapEZ (NimbleGene) technology, which includes probes for 8667 canonical resistance genes (7963 antibiotic resistance genes and 704 genes conferring resistance to metals or biocides), and 2517 relaxase genes (plasmid markers) and 78,600 genes homologous to the previous identified targets (47,806 for antibiotics and 30,794 for biocides or metals). Its performance was compared with metagenomic shotgun sequencing (MSS) for 17 fecal samples (9 humans, 8 swine). ResCap significantly improves MSS to detect "gene abundance" (from 2.0 to 83.2%) and "gene diversity" (26 versus 14.9 genes unequivocally detected per sample per million of reads; the number of reads unequivocally mapped increasing up to 300-fold by using ResCap), which were calculated using novel bioinformatic tools. ResCap also facilitated the analysis of novel genes potentially involved in the resistance to antibiotics, metals, biocides, or any combination thereof. CONCLUSIONS: ResCap, the first targeted sequence capture, specifically developed to analyze resistomes, greatly enhances the sensitivity and specificity of available metagenomic methods and offers the possibility to analyze genes related to the selection and transfer of antimicrobial resistance (biocides, heavy metals, plasmids). The model opens the possibility to study other complex microbial systems in which minority populations play a relevant role. PMID- 29335007 TI - Stress-inducible Protein-1 promotes metastasis of gastric cancer via Wnt/beta catenin signaling pathway. AB - BACKGROUND: Stress-Inducible Protein-1 (STIP1) is a co-chaperone that associates directly with heat shock proteins, and regulates motility of various types of cancer. In the present study, we investigated the role of STIP1 on metastasis of gastric cancer (GC). METHODS: In vivo metastatic experimental model was employed to investigate the effect of STIP1 on metastasis of GC cells. Loss-of-function and gain-of-function experiments were performed to examine the role of STIP1 on metastasis of GC cells. Western blot, immunofluorescence staining, migration and invasion assays, microarray and KEGG pathway analysis were applied to explore the underlying mechanism. RESULTS: In current study, we demonstrated that STIP1 promoted lung metastasis of GC cells in vivo. Furthermore, STIP1 significantly enhanced migration and invasion abilities of GC cells. In contrast, knock-down of STIP1 yielded the opposite effects on these phenotypes in vitro. STIP1 promoted tumor metastasis through inducing epithelial-to-mesenchymal transition in GC cells. Mechanistically, STIP1 promoted GC metastasis via up-regulation of targeted genes in Wnt/beta-catenin signaling pathway, including c-Myc and Cyclin D1, and accompanied with nuclear translocation of beta-catenin. CONCLUSIONS: Our findings indicate that elevated expression of STIP1 exhibited a metastasis promoting effect in GC cells through activation of Wnt/beta-catenin signaling pathway. STIP1 may be served as a potential therapeutic target for preventing GC metastasis. PMID- 29335006 TI - Genetic dissection of the neuro-glio-vascular machinery in the adult brain. AB - The adult brain actively controls its metabolic homeostasis via the circulatory system at the blood brain barrier interface. The mechanisms underlying the functional coupling from neuron to vessel remain poorly understood. Here, we established a novel method to genetically isolate the individual components of this coupling machinery using a combination of viral vectors. We first discovered a surprising non-uniformity of the glio-vascular structure in different brain regions. We carried out a viral injection screen and found that intravenous Canine Adenovirus 2 (CAV2) preferentially targeted perivascular astrocytes throughout the adult brain, with sparing of the hippocampal hilus from infection. Using this new intravenous method to target astrocytes, we selectively ablated these cells and observed severe defects in hippocampus-dependent contextual memory and the metabolically regulated process of hippocampal neurogenesis. Combined with AAV9 targeting of neurons and endothelial cells, all components of the neuro-glio-vascular machinery can be simultaneously labeled for genetic manipulation. Together, we demonstrate a novel method, which we term CATNAP (CAV/AAV Targeting of Neurons and Astrocytes Perivascularly), to target and manipulate the neuro-glio-vascular machinery in the adult brain. PMID- 29335009 TI - Isolated follicle stimulated hormone deficiency in male: case report. AB - BACKGROUND: Recent rapid advances in assisted reproductive health technologies enables couples with subfertility to conceive through various intervention. Majority of treatment modalities target the female partner. However it is important to identify and treat male factor subfertility right at the outset. We report a case of isolated follicle stimulating hormone deficiency resulting in azoospermia and primary subfertility. CASE PRESENTATION: A 28 year otherwise healthy male presented with primary subfertility with a healthy female counterpart. He was found to have non obstructive azoospermia with low seminal fluid volume. He had normal external genitalia and potency with increased libido. Further evaluation revealed an isolated deficiency of follicle stimulating hormone with elevated testosterone levels. His luteinizing hormone and prolactin levels were normal. Contrast enhanced CT scan of chest, abdomen and pelvis and MRI scan of the pituitary fossa were normal too. CONCLUSION: In the era of modern reproductive technology it is important to further evaluate males with non obstructive azoospermia to detect underlying gonadotropin deficiency. PMID- 29335008 TI - Multi-omics differentially classify disease state and treatment outcome in pediatric Crohn's disease. AB - BACKGROUND: Crohn's disease (CD) has an unclear etiology, but there is growing evidence of a direct link with a dysbiotic microbiome. Many gut microbes have previously been associated with CD, but these have mainly been confounded with patients' ongoing treatments. Additionally, most analyses of CD patients' microbiomes have focused on microbes in stool samples, which yield different insights than profiling biopsy samples. RESULTS: We sequenced the 16S rRNA gene (16S) and carried out shotgun metagenomics (MGS) from the intestinal biopsies of 20 treatment-naive CD and 20 control pediatric patients. We identified the abundances of microbial taxa and inferred functional categories within each dataset. We also identified known human genetic variants from the MGS data. We then used a machine learning approach to determine the classification accuracy when these datasets, collapsed to different hierarchical groupings, were used independently to classify patients by disease state and by CD patients' response to treatment. We found that 16S-identified microbes could classify patients with higher accuracy in both cases. Based on follow-ups with these patients, we identified which microbes and functions were best for predicting disease state and response to treatment, including several previously identified markers. By combining the top features from all significant models into a single model, we could compare the relative importance of these predictive features. We found that 16S-identified microbes are the best predictors of CD state whereas MGS identified markers perform best for classifying treatment response. CONCLUSIONS: We demonstrate for the first time that useful predictors of CD treatment response can be produced from shotgun MGS sequencing of biopsy samples despite the complications related to large proportions of host DNA. The top predictive features that we identified in this study could be useful for building an improved classifier for CD and treatment response based on sufferers' microbiome in the future. The BISCUIT project is funded by a Clinical Academic Fellowship from the Chief Scientist Office (Scotland)-CAF/08/01. PMID- 29335010 TI - Acute intestinal obstruction due to extrinsic compression by previa myoma and ectopic pregnancy: a case report. AB - BACKGROUND: Acute intestinal obstruction during pregnancy is a rare digestive surgical emergency with significant maternal and fetal mortality. Diagnosis is difficult, often delaying the management. Here, we report an exceptional association of mechanical acute intestinal obstruction due to compression by previa uterine leiomyoma, and a ruptured ectopic pregnancy. CASE PRESENTATION: This is the case report of a 43-year-old primiparous black woman from a rural area, who was admitted to the surgical emergency department for acute intestinal obstruction. At examination on admittance, our patient had a bad general condition with clinical anemia. She had an occlusive syndrome that had been evolving for 3 days. A physical examination of her abdomen showed a widespread distension with an irregular and polylobed solid mass occupying the whole of the lower-umbilical and hypogastric area. A rectal examination found an empty rectum, and the mass was perceptible in Douglas's pouch. At the vaginal examination, we found the same mass and a finger holster was clean. The diagnosis of intestinal occlusion by a tumor was retained. The laparotomy revealed a distended intestine, a ruptured right tubal ectopic pregnancy and a polymyomatous uterus. The most massive previa leiomyoma was adhering and compressing the rectal and sigmoidal hinge. A total hysterectomy was performed and histopathological examination of specimens confirmed myoma and ectopic pregnancy. The surgical follow-up was uneventful, and our patient was discharged on postoperative day 12. CONCLUSIONS: The etiological diagnosis of acute intestinal obstruction during pregnancy is not easy, especially in the context of a low-income country where the means of biological and radiological diagnosis are lacking. A laparotomy is required before diagnosis of acute surgical abdomen and its management will depend on the intraoperative findings and the condition of the patient. PMID- 29335011 TI - Generalized estimation of the ventilatory distribution from the multiple-breath washout: a bench evaluation study. AB - BACKGROUND: The multiple-breath washout (MBW) is able to provide information about the distribution of ventilation-to-volume (v/V) ratios in the lungs. However, the classical, all-parallel model may return skewed results due to the mixing effect of a common dead space. The aim of this work is to examine whether a novel mathematical model and algorithm is able to estimate v/V of a physical model, and to compare its results with those of the classical model. The novel model takes into account a dead space in series with the parallel ventilated compartments, allows for variable tidal volume (VT) and end-expiratory lung volume (EELV), and does not require a ideal step change of the inert gas concentration. METHODS: Two physical models with preset v/V units and a common series dead space (vd) were built and mechanically ventilated. The models underwent MBW with N2 as inert gas, throughout which flow and N2 concentration signals were acquired. Distribution of v/V was estimated-via nonnegative least squares, with Tikhonov regularization-with the classical, all-parallel model (with and without correction for non-ideal inspiratory N2 step) and with the new, generalized model including breath-by-breath vd estimates given by the Fowler method (with and without constrained VT and EELV). RESULTS: The v/V distributions estimated with constrained EELV and VT by the generalized model were practically coincident with the actual v/V distribution for both physical models. The v/V distributions calculated with the classical model were shifted leftwards and broader as compared to the reference. CONCLUSIONS: The proposed model and algorithm provided better estimates of v/V than the classical model, particularly with constrained VT and EELV. PMID- 29335012 TI - The polycomb group protein EZH2 induces epithelial-mesenchymal transition and pluripotent phenotype of gastric cancer cells by binding to PTEN promoter. AB - BACKGROUND: The influences of oncogenic Ezh2 on the progression and prognosis of gastric cancer (GC) and the underlying mechanisms are still poorly understood. Here, we aimed at investigating clinicopathological significance of Ezh2 in GC and the mechanisms underlying its function in GC development. METHODS: The expression level of Ezh2 was determined by qRT-PCR, immunoblot, and immunohistochemistry analysis in 156 pairs of GC tissues and adjacent normal gastric mucosa tissues. The biological functions of Ezh2 were assessed by in vitro and in vivo functional experiments. Chromatin immunoprecipitation (ChIP), luciferase, and Western blotting analyses were utilized to identify the relationship between Ezh2 and the PTEN/Akt signaling. RESULTS: The expression of Ezh2 was higher in gastric cancer tissues in comparison with para-nontumorous epithelium. High expression of Ezh2 was associated with more aggressive biological behavior and poor prognosis in GC. In vitro studies indicated that Ezh2 promoted GC cells' proliferation and clonogenicity. Besides, Ezh2 led to the acquisition of epithelial-mesenchymal transition (EMT) phenotype of GC cells and enhanced GC cell migration and invasion capacity. In particular, Ezh2 strengthened sphere-forming capacity of GC cells, indicating its role in the enrichment of GC stem cells. Furthermore, we found that PTEN/Akt signaling contributed to the effects of Ezh2 on cancer stem cells (CSC) and EMT phenotype in GC cells, and blocking PTEN signaling significantly rescued the effects of Ezh2. CONCLUSIONS: Taken together, Ezh2 has a central role in regulating diverse aspects of the pathogenesis of GC in part by involving PTEN/Akt signaling, indicating that it could be an independent prognostic factor and potential therapeutic target. PMID- 29335013 TI - FIT for FUNCTION: study protocol for a randomized controlled trial. AB - BACKGROUND: The current state of evidence suggests that community-based exercise programs are beneficial in improving impairment, function, and health status, and are greatly needed for persons with stroke. However, limitations of these studies include risk of bias, feasibility, and cost issues. METHODS/DESIGN: This single blinded, randomized controlled trial (RCT) of 216 participants with stroke will compare the effectiveness of a 12-week YMCA community-based wellness program (FIT for FUNCTION) specifically designed for community-dwelling persons with stroke to persons who receive a standard YMCA membership. The primary outcome will be community reintegration using the Reintegration to Normal Living Index at 12 and 24 weeks. Secondary outcomes include measurement of physical activity level using the Rapid Assessment of Physical Activity and accelerometry; balance using the Berg Balance Scale; lower extremity function using the Short Physical Performance Battery; exercise capacity using the 6-min walk test; grip strength and isometric knee extension strength using hand held dynamometry; and health-related quality of life using the European Quality of Life 5-Dimension Questionnaire. We are also assessing cardiovascular health and lipids; glucose and inflammatory markers will be collected following 12-h fast for total cholesterol, insulin, glucose, and glycated hemoglobin. Self-efficacy for physical activity will be assessed with a single question and self-efficacy for managing chronic disease will be assessed using the Stanford 6-item Scale. The Patient Activation Measure will be used to assess the patient's level of knowledge, skill, and confidence for self management. Healthcare utilization and costs will be evaluated. Group, time, and group * time interaction effects will be estimated using generalized linear models for continuous variables, including relevant baseline variables as covariates in the analysis that differ appreciably between groups at baseline. Cost data will be treated as non-parametric and analyzed using a Mann-Whitney U test. DISCUSSION: This is a RCT with broad study eligibility criteria intended to recruit a wide spectrum of individuals living in the community with stroke. If positive benefits are demonstrated, results will provide strong research evidence to support the implementation of structured, community-based exercise and education/self-management programs for a broad range of people living in the community with stroke. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02703805 . Registered on 14 October 2014. PMID- 29335014 TI - Cost-effectiveness study of early versus late parenteral nutrition in critically ill children (PEPaNIC): preplanned secondary analysis of a multicentre randomised controlled trial. AB - BACKGROUND: The multicentre randomised controlled PEPaNIC trial showed that withholding parenteral nutrition (PN) during the first week of critical illness in children was clinically superior to providing early PN. This study describes the cost-effectiveness of this new nutritional strategy. METHODS: Direct medical costs were calculated with use of a micro-costing approach. We compared the costs of late versus early initiation of PN (n = 673 versus n = 670 patients) in the Belgian and Dutch study populations from a hospital perspective, using Student's t test with bootstrapping. Main cost drivers were identified and the impact of new infections on the total costs was assessed. RESULTS: Mean direct medical costs for patients receiving late PN (?26.680, IQR ?10.090-28.830 per patient) were 21% lower (-?7.180, p = 0.007) than for patients receiving early PN (?33.860, IQR ?11.080-34.720). Since late PN was more effective and less costly, this strategy was superior to early PN. The lower costs for PN only contributed 2.1% to the total cost reduction. The main cost driver was intensive care hospitalisation costs (-?4.120, p = 0.003). The patients who acquired a new infection (14%) were responsible for 41% of the total costs. Sensitivity analyses confirmed consistency across both healthcare systems. CONCLUSIONS: Late initiation of PN decreased the direct medical costs for hospitalisation in critically ill children, beyond the expected lower costs for withholding PN. Avoiding new infections by late initiation of PN yielded a large cost reduction. Hence, late initiation of PN was superior to early initiation of PN largely via its effect on new infections. TRIAL REGISTRATION: ClinicalTrials.gov, NCT01536275 . Registered on 16 February 2012. PMID- 29335015 TI - Cryptic diversity in an Atlantic Forest malaria vector from the mountains of South-East Brazil. AB - BACKGROUND: Anopheles (Kerteszia) cruzii is the primary vector of human and simian malarias in Brazilian regions covered by the Atlantic Rainforest. Previous studies found that An. cruzii presents high levels of behavioural, chromosomal and molecular polymorphisms, which led to the hypothesis that it may be a complex of cryptic species. Here, An. cruzii specimens were collected in five sites in South-East Brazil located at different altitudes on the inner and coastal slopes of two mountain ranges covered by Atlantic Rainforest, known as Serra do Mar and Serra da Mantiqueria. Partial sequences for two genes (Clock and cpr) were generated and compared with previously published sequences from Florianopolis (southern Brazil). Genetic diversity was analysed with estimates of population structure (F ST ) and haplotype phylogenetic trees in order to understand how many species of the complex may occur in this biome and how populations across the species distribution are related. RESULTS: The sequences from specimens collected at sites located on the lower coastal slopes of Serra do Mar (Guapimirim, Tingua and Sana) clustered together in the phylogenetic analysis, while the major haplotypes from sites located on higher altitude and at the continental side of the same mountains (Bocaina) clustered with those from Serra da Mantiqueira (Itatiaia), an inner mountain range. These two An. cruzii lineages showed statistically significant genetic differentiation and fixed characters, and have high F ST values typical of between species comparisons. Finally, in Bocaina, where the two lineages occur in sympatry, we found deviations from Hardy Weinberg equilibrium due to a deficit of heterozygotes, indicating partial reproductive isolation. These results strongly suggest that at least two distinct lineages of An. cruzii (provisorily named "Group 1" and "Group 2") occur in the mountains of South-East Brazil. CONCLUSIONS: At least two genetically distinct An. cruzii lineages occur in the Atlantic Forest covered mountains of South-East Brazil. The co-occurrence of distinct lineages of An. cruzii (possibly incipient species) in those mountains is an interesting biological phenomenon and may have important implications for malaria prevalence, Plasmodium transmission dynamics and control. PMID- 29335016 TI - Autophagy is required for human umbilical cord mesenchymal stem cells to improve spatial working memory in APP/PS1 transgenic mouse model. AB - BACKGROUND: Recent studies have shown that autophagy plays a central role in mesenchymal stem cells (MSCs), and many studies have shown that human umbilical cord MSCs (huMSCs) can treat Alzheimer's disease (AD) through a variety of mechanisms. However, no studies have looked at the effects of autophagy on neuroprotective function of huMSCs in the AD mouse model. Thus, in this study we investigated whether inhibition of autophagy could weaken or block the function of huMSCs through in vitro and in vivo experiments. METHODS: In vitro we examined huMSC migration and neuronal differentiation by inhibiting or activating autophagy; in vivo autophagy of huMSCs was inhibited by knocking down Beclin 1, and these huMSCs were transplanted into the APP/PS1 transgenic mouse. A series of related indicators were detected by T-maze task, electrophysiological experiments, immunofluorescence staining, enzyme-linked immunosorbent assay (ELISA), and Western blotting. RESULTS: We demonstrated that regulation of autophagy can affect huMSC migration and their neuronal differentiation. Moreover, inhibition of autophagy in huMSCs could not realize neuroprotective effects via anti-apoptosis or promoting neurogenesis and synapse formation compared with those of control huMSCs. CONCLUSIONS: These findings indicate that autophagy is required for huMSCs to maintain their function and improve cognition impairment in APP/PS1 transgenic mice. PMID- 29335017 TI - Effect of laparoscopy by single-port endoscopic access in benign adnexal surgery: study protocol for a randomized controlled trial. AB - BACKGROUND: Laparoscopic surgery has become the preferred surgical approach due to a reduction in postoperative pain, better recovery, shorter hospitalization, and improved esthetic outcomes. Laparoscopic surgery with single-port laparoscopy (SPL) is a laparoscopic surgery technique that is based on making a single parietal incision using a single trocar specifically designed to allow introduction of several instruments. The level of evidence regarding the advantages of SPL in terms of postoperative pain has remained low despite several randomized studies. Adult patients exhibiting a surgical indication for an a priori benign ovarian pathology or for prophylactic purposes that can be performed by laparoscopy will be randomized to receive conventional laparoscopy (CL) or SPL. The aim of our study is to evaluate whether SPL offers advantages over CL in benign adnexal surgery. METHODS: The patients will be evaluated preoperatively to confirm their eligibility. The perioperative data up to 24 h after the intervention, as well as the postoperative data at day 7 and at one month from the intervention will be collected. The primary outcome for the study will be the postoperative pain at 24 h +/- 2 h after the intervention. The pain will be assessed by a numeric rating scale of 0-10. Other outcomes will also be assessed, such as pain at other times, the consumption of analgesics, the operative time, perioperative bleeding, the number of additional trocars in the two groups, the incidence of laparoconversion, the esthetic criteria of the scar at one month, the incidence of complications, and the quality of life at one month. DISCUSSION: If our hypothesis is confirmed, this study will provide evidence that the use of SPL can decrease postoperative pain in adnexal surgery. The standard surgical treatment of this condition would thus be modified. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02739724 . Registered on 12 April 2016. PMID- 29335018 TI - Danggwijagyaksan for climacteric syndrome in peri- and postmenopausal women with a blood-deficiency dominant pattern: study protocol for a randomized, double blind, placebo-controlled pilot trial. AB - BACKGROUND: This study aims to explore the safety, efficacy, and feasibility of Danggwijagyaksan (DJS) for alleviating climacteric syndrome in peri- and postmenopausal women with a blood-deficiency dominant pattern. METHODS/DESIGN: This is a randomized, double-blind, placebo-controlled pilot clinical trial. A total of 34 women with climacteric syndrome who have signed informed consent forms will be registered in this study. Placebo or DJS will be randomly assigned to the participants in an equal proportion. The participants will visit the clinical trial center every 2 weeks and receive placebo or DJS granules. The treatment period is 4 weeks and the administration frequency is three times daily. Data will be collected from the participants at baseline, at week 5, and at week 9 after random allocation. The primary outcome measure will be the mean change in the Menopause Rating Scale from baseline to week 5. Secondary outcome measures will include the World Health Organization Quality of Life-BREF (WHOQOL BREF) score, the Blood Deficiency Scoring System score, lean body mass, and blood tests, including serum follicle-stimulating hormone and estradiol concentration. To assess the safety of DJS, a laboratory test will be conducted before and after treatment and the participants will be asked about any occurrence of adverse events every visit. The recruitment rate, completion rate, and medication adherence will also be calculated, to assess feasibility. DISCUSSION: The findings of this study will provide the basis for a full-scale randomized controlled trial to confirm the safety and efficacy of DJS for the treatment of climacteric syndrome in peri- and postmenopausal women. TRIAL REGISTRATION: Clinical Research Information Service (CRIS), Republic of Korea, KCT0002387 . Registered on 25 July 2017. PMID- 29335019 TI - Patient blood management programs: how to spread the word? AB - Red blood cell (RBC) transfusions save lives and improve health; however, unnecessary transfusion practice exposes patients to immediate and long-term negative consequences. Indirect consequences of unnecessary transfusions are the reduced availability of RBC units for patients who are in need. Accumulating evidence shows that restricting RBC transfusions improves outcomes and current guidelines suggest limiting RBC transfusion to the minimum number of units required to relieve symptoms of anemia or to return the patient to a safe hemoglobin range (7-8 g/dl in stable, non-cardiac inpatients). Still, studies show that there is over-utilization of RBC transfusion, partly due to low level of knowledge of physicians regarding restrictive RBC transfusion policy across a broad range of professions and specialties. Patient blood management (PBM) programs have been developed to promote clear hospital transfusion guidelines, strive for optimization of patient hemoglobin and iron stores and, most importantly, improve education regarding restrictive RBC policy. Understanding what and where the gaps of knowledge are, as was done in the study by Dr. Koren and his colleagues, is an important step for developing effective PBM programs. PMID- 29335020 TI - Ensemble genomic analysis in human lung tissue identifies novel genes for chronic obstructive pulmonary disease. AB - BACKGROUND: Genome-wide association studies (GWAS) have identified single nucleotide polymorphisms (SNPs) significantly associated with chronic obstructive pulmonary disease (COPD). However, many genetic variants show suggestive evidence for association but do not meet the strict threshold for genome-wide significance. Integrative analysis of multiple omics datasets has the potential to identify novel genes involved in disease pathogenesis by leveraging these variants in a functional, regulatory context. RESULTS: We performed expression quantitative trait locus (eQTL) analysis using genome-wide SNP genotyping and gene expression profiling of lung tissue samples from 86 COPD cases and 31 controls, testing for SNPs associated with gene expression levels. These results were integrated with a prior COPD GWAS using an ensemble statistical and network methods approach to identify relevant genes and observe them in the context of overall genetic control of gene expression to highlight co-regulated genes and disease pathways. We identified 250,312 unique SNPs and 4997 genes in the cis(local)-eQTL analysis (5% false discovery rate). The top gene from the integrative analysis was MAPT, a gene recently identified in an independent GWAS of lung function. The genes HNRNPAB and PCBP2 with RNA binding activity and the gene ACVR1B were identified in network communities with validated disease relevance. CONCLUSIONS: The integration of lung tissue gene expression with genome-wide SNP genotyping and subsequent intersection with prior GWAS and omics studies highlighted candidate genes within COPD loci and in communities harboring known COPD genes. This integration also identified novel disease genes in sub threshold regions that would otherwise have been missed through GWAS. PMID- 29335022 TI - Tackling the challenges of matching biomedical ontologies. AB - BACKGROUND: Biomedical ontologies pose several challenges to ontology matching due both to the complexity of the biomedical domain and to the characteristics of the ontologies themselves. The biomedical tracks in the Ontology Matching Evaluation Initiative (OAEI) have spurred the development of matching systems able to tackle these challenges, and benchmarked their general performance. In this study, we dissect the strategies employed by matching systems to tackle the challenges of matching biomedical ontologies and gauge the impact of the challenges themselves on matching performance, using the AgreementMakerLight (AML) system as the platform for this study. RESULTS: We demonstrate that the linear complexity of the hash-based searching strategy implemented by most state of-the-art ontology matching systems is essential for matching large biomedical ontologies efficiently. We show that accounting for all lexical annotations (e.g., labels and synonyms) in biomedical ontologies leads to a substantial improvement in F-measure over using only the primary name, and that accounting for the reliability of different types of annotations generally also leads to a marked improvement. Finally, we show that cross-references are a reliable source of information and that, when using biomedical ontologies as background knowledge, it is generally more reliable to use them as mediators than to perform lexical expansion. CONCLUSIONS: We anticipate that translating traditional matching algorithms to the hash-based searching paradigm will be a critical direction for the future development of the field. Improving the evaluation carried out in the biomedical tracks of the OAEI will also be important, as without proper reference alignments there is only so much that can be ascertained about matching systems or strategies. Nevertheless, it is clear that, to tackle the various challenges posed by biomedical ontologies, ontology matching systems must be able to efficiently combine multiple strategies into a mature matching approach. PMID- 29335021 TI - Seroprevalence of dengue among healthy adults in a rural community in Southern Malaysia: a pilot study. AB - BACKGROUND: The frequency and magnitude of dengue epidemics continue to increase exponentially in Malaysia, with a shift in the age range predominance toward adults and an expansion to rural areas. Despite this, information pertaining to the extent of transmission of dengue virus (DENV) in the rural community is lacking. This community-based pilot study was conducted to establish DENV seroprevalence amongst healthy adults in a rural district in Southern Malaysia, and to identify influencing factors. METHODS: In this study undertaken between April and May 2015, a total of 277 adult participants were recruited from households across three localities in the Sungai Segamat subdistrict in Segamat district. Sera were tested for immunoglobulin G (IgG) (Panbio(r) Dengue Indirect IgG ELISA/high-titer capture) and immunoglobulin M (IgM) (Panbio(r)) antibodies. The plaque reduction neutralization test (PRNT) was conducted on random samples of IgG-positive sera for further confirmation. Medical history and a recall of previous history of dengue were collected through interviews, whereas sociodemographic information was obtained from an existing database. RESULTS: The overall seroprevalence for DENV infection was 86.6% (240/277) (95% CI: 83-91%). Serological evidence of recent infection (IgM/high-titer capture IgG) was noted in 11.2% (31/277) of participants, whereas there was evidence of past infection in 75.5% (209/277) of participants (indirect IgG minus recent infections). The PRNT assay showed that the detected antibodies were indeed specific to DENV. The multivariate analysis showed that the older age group was significantly associated with past DENV infections. Seropositivity increased with age; 48.5% in the age group of <25 years to more than 85% in age group of >45 years (P < 0.001). No associations with occupation, study site, housing type, comorbidity, educational level, and marital status were observed, although the latter two were statistically significant in the univariate analysis. None of the studied factors were significantly associated with recent DENV infections in the multivariate analysis, although there was a pattern suggestive of recent outbreak in two study sites populated predominately by Chinese people. The majority of infections did not give rise to recognizable disease (either asymptomatic or nonspecific symptoms) as only 12.9% of participants (31/240) recalled having dengue in the past. CONCLUSIONS: The predominantly rural community under study had a very high previous exposure to dengue. The finding of a high proportion of unreported cases possibly due to subclinical infections underscores the need for enhanced surveillance and control methods. This finding also has implications for measuring disease burden, understanding transmission dynamics, and hypothesizing effects on DENV vaccine efficacy and uptake. PMID- 29335023 TI - Early neonatal Glutaric aciduria type I hidden by perinatal asphyxia: a case report. AB - BACKGROUND: Perinatal asphyxia (PA) occurs in about 2 to 10 per 1000 live full term births. Although neonatal epileptic seizures are observed in up to 60% of cases, PA may mimic or subtend other conditions. Hypoxia related brain injury is particularly relevant, as it may have permanent effects on neuropsychomotor development. Antepartum obstetric conditions, may, in turn, lead to hypoxic ischemic damage to the fetus and the newborn, often underlying PA. Herein, a case of PA that hid and triggered signs and symptoms of Glutaric Aciduria type I (GA I), is reported. CASE PRESENTATION: R.F. was born at term after prolonged labour, by induced vaginal delivery with the Kristeller manoeuvre. He presented with severe asphyxia and asystoly. Immediate cardiopulmonary resuscitation promptly restored cardiorespiratory parameters, allowing for early extubation 30 min after. During the following hours, severe axial muscle hypotonia with an increased tone of the limb extensor muscles became evident. The absence of crying and archaic reflexes persisted and there was an onset of generalized tonic or clonic seizure. First level metabolic and inflammatory markers were within the normal range. An inherited metabolic disease was then suspected, due to the persistent clinical signs of severe neurological damage without any detectable septic parameter. GA-I was assessed and specific treatment started without any clinical improvement, although ensuring adequate growth and metabolic control. Thereafter, the baby developed a severe encephalopathy with drug resistant epileptic seizures. The progression of the neurological damage and a CVC-related sepsis led him to exitus at 2 years. CONCLUSIONS: To the best of our knowledge, this is the first case of early post-natal onset of GA-I reported in literature to date, in the absence of expanded newborn screening (NBS) programme. As expanded NBS programmes for inborn errors of metabolism have not yet been internationally adopted, we are of the opinion that such diseases may well be hidden by misleading signs and symptoms imputable to other more frequent harmful clinical conditions. Moreover, it would be advisable that neonatologists be trained to include GA-I in the differential diagnosis of neurological damage secondary to PA. PMID- 29335025 TI - Prevalence of a carbapenem-resistance gene (KPC), vancomycin-resistance genes (van A/B) and a methicillin-resistance gene (mecA) in hospital and municipal sewage in a southwestern province of Saudi Arabia. AB - OBJECTIVE: According to the World Health Organization, the increasing antibiotic resistance of pathogens is one of the most important threats to human health. Prevalence of a carbapenem-resistance gene (KPC), vancomycin-resistance genes (van A/B) and a methicillin-resistance gene (mecA) in hospital and municipal sewages will be potential threat to public health. RESULTS: Vancomycin-resistance genes were detected in the sewage of community tank-II, sewage tank of the tertiary and general hospital. Carbapenem-resistance gene was detected in sewage of community tank-II and sewage from tertiary hospital. Methicillin-resistance gene was detected in sewage of community tank-II, sewage from a fish market sewage tank and sewage from an animal slaughter house sewage tank. The detection of a KPC, van A/B and a mecA in sewages will help further the process to take the appropriate measures to prevent the spread of such bacteria in the environment. PMID- 29335024 TI - Sex differences in the late first trimester human placenta transcriptome. AB - BACKGROUND: Development of the placenta during the late first trimester is critical to ensure normal growth and development of the fetus. Developmental differences in this window such as sex-specific variation are implicated in later placental disease states, yet gene expression at this time is poorly understood. METHODS: RNA-sequencing was performed to characterize the transcriptome of 39 first trimester human placentas using chorionic villi following genetic testing (17 females, 22 males). Gene enrichment analysis was performed to find enriched canonical pathways and gene ontologies in the first trimester. DESeq2 was used to find sexually dimorphic gene expression. Patient demographics were analyzed for sex differences in fetal weight at time of chorionic villus sampling and birth. RESULTS: RNA-sequencing analyses detected 14,250 expressed genes, with chromosome 19 contributing the greatest proportion (973/2852, 34.1% of chromosome 19 genes) and Y chromosome contributing the least (16/568, 2.8%). Several placenta-enriched genes as well as histone-coding genes were identified to be unique to the first trimester and common to both sexes. Further, we identified 58 genes with significantly different expression between males and females: 25 X-linked, 15 Y linked, and 18 autosomal genes. Genes that escape X inactivation were highly represented (59.1%) among X-linked genes upregulated in females. Many genes differentially expressed by sex consisted of X/Y gene pairs, suggesting that dosage compensation plays a role in sex differences. These X/Y pairs had roles in parallel, ancient canonical pathways important for eukaryotic cell growth and survival: chromatin modification, transcription, splicing, and translation. CONCLUSIONS: This study is the first characterization of the late first trimester placenta transcriptome, highlighting similarities and differences among the sexes in ongoing human pregnancies resulting in live births. Sexual dimorphism may contribute to pregnancy outcomes, including fetal growth and birth weight, which was seen in our cohort, with males significantly heavier than females at birth. This transcriptome provides a basis for development of early diagnostic tests of placental function that can indicate overall pregnancy heath, fetal-maternal health, and long-term adult health. PMID- 29335026 TI - Congenital anomalies in neurofibromatosis 1: a retrospective register-based total population study. AB - BACKGROUND: Neurofibromatosis type 1 (NF1) is a dominantly inherited Rasopathy caused by mutations in the NF1 gene on chromosome 17. NF1 has been connected to congenital anomalies, e.g., in the skeletal and cardiovascular systems, but the overall incidence of anomalies is unknown. In this retrospective register-based total population study conducted in Finland, the congenital anomalies in NF1 were evaluated. METHODS: One thousand four hundred ten patients with NF1 were identified by searching the medical records related to inpatient and outpatient hospital visits of patients with an associated diagnosis for NF1 in 1987-2011. Each diagnosis was confirmed by a thorough review of the medical records. Ten non NF1 control persons per NF1 patient were collected from the Population Register Centre. NF1 patients and controls were linked to the Medical Birth Register and the Register of Congenital Malformations. Odds ratios (OR) and 95% confidence intervals (95% CI) for major congenital anomalies (MCA) were calculated. RESULTS: The OR for at least one MCA among NF1 children was almost threefold (adjusted OR 2.78, 95% CI 1.71-4.54) compared to controls matched for age, sex and municipality. NF1 children had a significantly increased risk of congenital anomalies in the circulatory (adjusted OR 3.35, 95% CI 1.64-6.83), urinary (adjusted OR 4.26, 95% CI 1.36-13.35) and musculoskeletal (adjusted OR 2.77, 95% CI 1.09-7.02) systems. Also, anomalies of the eye, ear, head and neck were more common among NF1 children than controls (adjusted OR 4.66, 95% CI 1.42-15.31). Non-NF1 children of mothers with NF1 did not have more anomalies than controls (adjusted OR 0.53, 95% CI 0.13-2.21). CONCLUSIONS: Children with NF1 have more MCAs than controls and close follow-up during pregnancy and the neonatal period is required if the mother or father has NF1. Non-NF1 children of mothers with NF1 do not have an increased risk for anomalies. PMID- 29335028 TI - Towards a 21st century health care system: advancing the case for telecare. AB - Telecare is increasingly recognized as an essential tool for a contemporary twenty-first century health care system even though the evidence is still emerging on its effectiveness. The need to find delivery models like telecare that improve both the convenience and value of care is universal, but particularly pressing for countries like the U.S. and Israel who are facing rising costs related to the needs of individuals with multiple complex conditions. This commentary provides highlights of the current state of practice and policy for telecare and the challenges that remain ahead as it is adopted into the mainstream. PMID- 29335027 TI - Fungi stabilize connectivity in the lung and skin microbial ecosystems. AB - BACKGROUND: No microbe exists in isolation, and few live in environments with only members of their own kingdom or domain. As microbiome studies become increasingly more interested in the interactions between microbes than in cataloging which microbes are present, the variety of microbes in the community should be considered. However, the majority of ecological interaction networks for microbiomes built to date have included only bacteria. Joint association inference across multiple domains of life, e.g., fungal communities (the mycobiome) and bacterial communities, has remained largely elusive. RESULTS: Here, we present a novel extension of the SParse InversE Covariance estimation for Ecological ASsociation Inference (SPIEC-EASI) framework that allows statistical inference of cross-domain associations from targeted amplicon sequencing data. For human lung and skin micro- and mycobiomes, we show that cross-domain networks exhibit higher connectivity, increased network stability, and similar topological re-organization patterns compared to single-domain networks. We also validate in vitro a small number of cross-domain interactions predicted by the skin association network. CONCLUSIONS: For the human lung and skin micro- and mycobiomes, our findings suggest that fungi play a stabilizing role in ecological network organization. Our study suggests that computational efforts to infer association networks that include all forms of microbial life, paired with large-scale culture-based association validation experiments, will help formulate concrete hypotheses about the underlying biological mechanisms of species interactions and, ultimately, help understand microbial communities as a whole. PMID- 29335029 TI - Estimating the proportion of clinically diagnosed infectious and non-infectious animal diseases in Ganta Afeshum woreda, Eastern Tigray zone, Ethiopia. AB - OBJECTIVE: This study was performed with the objective of identifying the proportion of emerging and endemic livestock diseases using cross sectional survey. RESULT: A total of 285 clinically diseased animals were presented to a veterinary clinic and diagnosed tentatively based on history, clinical sign, and simple laboratory diagnostics and from the study, actinomycosis (15.83%), mastitis (15%), tick infestation (10%), respiratory diseases (9.16%) and gastro intestinal parasitism (9.16%) were confirmed with higher proportion in large animals. Pasteurollosis (38, 31%), contagious ecthyma (12, 10%), tick infestation (9, 0%), mite infestation (9, 10%), sheep and goat pox (9, 10%), and gastrointestinal parasitism (9, 17%) were frequently encountered diseases in sheep and goat respectively. In equids, back sore, epizootic lymphangitis and lameness accounted a proportion of 22.95, 21.31, and 13.11% respectively. In conclusion, result of the present study showed that the proportion of livestock disease is high, and it affects the socioeconomic status of the local community in the study area as a result of mortality and production loss. PMID- 29335031 TI - Respiration pattern variability and related default mode network connectivity are altered in remitted depression. AB - BACKGROUND: Studies with healthy participants and patients with respiratory diseases suggest a relation between respiration and mood. The aim of the present analyses was to investigate whether emotionally challenged remitted depressed participants show higher respiration pattern variability (RPV) and whether this is related to mood, clinical outcome and increased default mode network connectivity. METHODS: To challenge participants, sad mood was induced with keywords of personal negative life events in individuals with remitted depression [recurrent major depressive disorder (rMDD), n = 30] and matched healthy controls (HCs, n = 30) during functional magnetic resonance imaging. Respiration was measured by means of a built-in respiration belt. Additionally, questionnaires, a daily life assessment of mood and a 3 years follow-up were applied. For replication, we analysed RPV in an independent sample of 53 rMDD who underwent the same fMRI paradigm. RESULTS: During sad mood, rMDD compared with HC showed greater RPV, with higher variability in pause duration and respiration frequency and lower expiration to inspiration ratio. Higher RPV was related to lower daily life mood and predicted higher depression scores as well as relapses during a 3 year follow-up period. Furthermore, in rMDD compared with HC higher main respiration frequency exhibited a more positive association with connectivity of the posterior cingulate cortex and the right parahippocampal gyrus. CONCLUSIONS: The results suggest a relation between RPV, mood and depression on the behavioural and neural level. Based on our findings, we propose interventions focusing on respiration to be a promising additional tool in the treatment of depression. PMID- 29335030 TI - Preschool psychiatric disorders: homotypic and heterotypic continuity through middle childhood and early adolescence. AB - BACKGROUND: Many preschool-age children meet criteria for psychiatric disorders, and rates approach those observed in later childhood and adolescence. However, there is a paucity of longitudinal research examining the outcomes of preschool diagnoses. METHODS: Families with a 3-year-old child (N = 559) were recruited from the community. Primary caregivers were interviewed using the Preschool Age Psychiatric Assessment when children were 3 years old (n = 541), and, along with children, using the Schedule for Affective Disorders and Schizophrenia for School Age Children Present and Lifetime Version when children were 9 and 12 years old. RESULTS: Rates of disruptive behavior disorders (DBD) decreased from preschool to middle childhood and early adolescence, whereas rates of attention deficit/hyperactivity disorder (ADHD) increased. Rates of any psychiatric disorder and depression increased from preschool to early adolescence only. Preschoolers with a diagnosis were over twice as likely to have a diagnosis during later periods. Homotypic continuity was present for anxiety disorders from preschool to middle childhood, for ADHD from preschool to early adolescence, and for DBD through both later time points. There was heterotypic continuity between preschool anxiety and early adolescent depression, and between preschool ADHD and early adolescent DBD. Dimensional symptom scores showed homotypic continuity for all diagnostic categories and showed a number of heterotypic associations as well. CONCLUSIONS: Results provide moderate support for the predictive validity of psychiatric disorders in preschoolers. Psychopathology in preschool is a significant risk factor for future psychiatric disorders during middle childhood and early adolescence. PMID- 29335033 TI - Should capacity assessments be performed routinely prior to discussing advance care planning with older people? AB - : ABSTRACTBackground:People with dementia receive worse end of life care compared to those with cancer. Barriers to undertaking advanced care planning (ACP) in people with dementia include the uncertainty about their capacity to engage in such discussions. The primary aim of this study was to compare the Advance Care Planning-Capacity Assessment Vignette tool (ACP-CAV) with a semi-structured interview adapted from the MacArthur Competence Assessment Tool-Treatment (MacCAT T). The secondary aim was to identify demographic and cognitive functioning variables that may predict whether a person has capacity to discuss ACP. METHODS: 32 older people (mean age = 84.1) with a Mini-Mental State Examination of 24 or above were recruited from two retirement villages in Auckland. Participants also completed Trail Making Test Part A & Part B and Geriatric Depression Scale (GDS 15) before undertaking the two capacity assessments that were video recorded to enable further analysis by four independent old age psychiatrists. RESULTS: Using the MacCAT-T as the gold standard, over half (53.1%) of the participants were considered as lacking in capacity to engage in ACP. Participants struggled with the "Understanding ACP" domain the most. Capacity was not predictable by any of the demographic or cognitive functioning variables. When compared to the gold standard, ACP-CAV was accurate in assessing capacity in 68.8% of the cases. CONCLUSION: Clinicians should routinely explain ACP to older people and ensure they fully understand it prior to an ACP discussion. If there is any concern about their understanding, further exploration and documentation of their capacity using the capacity assessment framework would be necessary. However, capacity assessment is a complex iterative process that does not easily lend itself to screening methodology and requires a high level of clinical judgment. PMID- 29335032 TI - 'Sit and tilt' preparation for subscapular system free flaps. AB - BACKGROUND: The ablation of advanced head and neck cancer often results in large three-dimensional defects that require free tissue transfer to optimally address functional and cosmetic issues. The subscapular system is a highly versatile donor site for flaps used for head and neck reconstruction. Traditional methods of harvesting subscapular flaps require repositioning and re-preparing, which significantly increases the operative time and prevents simultaneous harvesting of the flap. METHOD: This paper presents our experience of a single-stage 'sit and tilt' technique, which provides a convenient method for harvesting subscapular system free flaps without significant repositioning. RESULTS AND CONCLUSION: This technique was used for a variety of head and neck defects, and body habitus did not seem to affect free tissue harvesting. It is hoped that utilisation of this preparation and harvesting technique will make head and neck surgeons more willing to take advantage of the subscapular system. PMID- 29335034 TI - Staying Out of the Closet: LGBT Older Adults' Hopes and Fears in Considering End of-Life. AB - Canada is experiencing population aging, and given the heterogeneity of older adults, there is increasing diversity in late life. The purpose of this study was to help fill the research gaps on LGBT aging and end-of-life. Through focus groups, we sought to better understand the lived experience of older LGBT individuals and to examine their concerns associated with end-of-life. Our analysis highlights the idea that identifying as LGBT matters when it comes to aging and end-of-life care. In particular, gender identity and sexual orientation matter when it comes to social connections, in the expectations individuals have for their own care, and in the unique fear related to staying out of the closet and maintaining identity throughout aging and end-of-life. This study underscores the need to consider gender identity and sexual orientation at end-of-life. In particular, recognition of intersectionality and social locations is crucial to facilitating positive aging experiences and end-of-life care. PMID- 29335035 TI - Innovating dementia care; implementing characteristics of green care farms in other long-term care settings. AB - : ABSTRACTBackground:People with dementia at green care farms (GCFs) are physically more active, have more social interactions, are involved in a larger variety of activities, and come outdoors more often than those in other long-term dementia care settings. These aspects may positively affect health and well being. This study explored which and how characteristics of GCFs could be implemented in other long-term dementia care settings, taking into account possible facilitators and barriers. METHODS: Semi-structured interviews were conducted with 23 professionals from GCFs, independent small-scale long-term care facilities, and larger scale long-term care facilities in the Netherlands. The framework method was used to analyze the data. RESULTS: Several characteristics of GCFs (e.g. homelike aspects, domestic activities, and access to outdoor environments) have already been applied in other types of long-term dementia care settings. However, how and the extent to which these characteristics are being applied differ between GCFs and other types of long-term dementia care settings. Facilitators and barriers for the implementation of characteristics of GCFs were related to the physical environment in which the care facility is situated (e.g. the degree of urbanization), characteristics and competences of staff members (e.g. flexibility, creativity), characteristics and competences of managers (e.g. leadership, vision), and the political context (e.g. application of risk and safety protocols). CONCLUSION: Several characteristics can be implemented in other dementia care settings. However, to realize innovation in dementia care it is important that not only the physical environment but also the social and organizational environments are supporting the process of change. PMID- 29335036 TI - Individuals with currently untreated mental illness: causal beliefs and readiness to seek help. AB - AIMS: Many people with mental illness do not seek professional help. Beliefs about the causes of their current health problem seem relevant for initiating treatment. Our aim was to find out to what extent the perceived causes of current untreated mental health problems determine whether a person considers herself/himself as having a mental illness, perceives need for professional help and plans to seek help in the near future. METHODS: In a cross-sectional study, we examined 207 untreated persons with a depressive syndrome, all fulfilling criteria for a current mental illness as confirmed with a structured diagnostic interview (Mini International Neuropsychiatric Interview). The sample was recruited in the community using adverts, flyers and social media. We elicited causal explanations for the present problem, depression literacy, self identification as having a mental illness, perceived need for professional help, help-seeking intentions, severity of depressive symptoms (Patient Health Questionnaire - Depression), and whether respondents had previously sought mental healthcare. RESULTS: Most participants fulfilled diagnostic criteria for a mood disorder (n = 181, 87.4%) and/or neurotic, stress-related and somatoform disorders (n = 120, 58.0%) according to the ICD-10. N = 94 (45.4%) participants had never received mental health treatment previously. Exploratory factor analysis of a list of 25 different causal explanations resulted in five factors: biomedical causes, person-related causes, childhood trauma, current stress and unhealthy behaviour. Attributing the present problem to biomedical causes, person related causes, childhood trauma and stress were all associated with stronger self-identification as having a mental illness. In persons who had never received mental health treatment previously, attribution to biomedical causes was related to greater perceived need and stronger help-seeking intentions. In those with treatment experience, lower attribution to person-related causes and stress were related to greater perceived need for professional help. CONCLUSIONS: While several causal explanations are associated with self-identification as having a mental illness, only biomedical attributions seem to be related to increase perceived need and help-seeking intentions, especially in individuals with no treatment experiences. Longitudinal studies investigating causal beliefs and help seeking are needed to find out how causal attributions guide help-seeking behaviour. From this study it seems possible that portraying professional mental health treatment as not being restricted to biomedical problems would contribute to closing the treatment gap for mental disorders. PMID- 29335037 TI - Is freedom (still) therapy? The 40th anniversary of the Italian mental health care reform. AB - On 13 May 1978, the Italian Parliament approved Law 180, universally known as 'Basaglia Law' after the name of the leader of the anti-institutional movement which promoted this radical community mental health care reform. Forty years later, Italian psychiatry still runs a community care system, albeit with degrees of solidity and quality very varied along the peninsula. Mental health care is still an integral part of the National Health System, with liberal regulations on coercion and a lowest number of general hospital and residential facilities beds. Recently, Italy has also closed the special forensic psychiatric institutions and brought the care of the mentally ill offenders within the responsibilities of local Mental Health Departments. Over time, psychiatric deinstitutionalisation inspired policies in other sectors of Italian society, such as those regarding physical and intellectual disabilities, education of children with special needs, drug addictions and management of deviant minors. Furthermore, debate about Law 180 has reached and maintained an international dimension, becoming a term of reference for international agencies such as the World Health Organization and the European Commission, for good and for evil. The overall balance sheet of the Reform process would seem mostly positive, though the last decade has seen many threats challenging the system. Mental health care services have been asked to do much more, in terms of care to a larger population with very diversified needs, but with much less resources, due to the financial consequences of the economic crisis. Although there is no evidence of a trend towards re-institutionalisation, intensity and quality of care may have fallen below acceptable standards in some parts of Italy. PMID- 29335038 TI - What is the prevalence of untreated depression and death ideation in older people? Data from the Irish Longitudinal Study on Aging. AB - : ABSTRACTObjective:Late life depression (LLD) confers significant morbidity and mortality but is well recognized that it often goes undetected or untreated. The objective of this study is to quantify the burden of untreated depression and death ideation (DI) at a population level. DESIGN: Cross-sectional study ascertaining the prevalence of, and factors associated with, untreated depression and DI. SETTING: This study, embedded within the Irish Longitudinal Study on Ageing, involves over 7,000 community-dwelling people aged >=50 years. MEASUREMENTS: Depression was defined as Centre for Epidemiological Studies Depression scale >=16 indicating current clinically relevant depressive symptoms or Composite International Diagnostic Interview indicative of major depressive episode within the last year. Participants not prescribed antidepressants/antipsychotics were defined as untreated. To define DI, participants were asked "In the last month, have you felt like you would rather be dead?" RESULTS: In total, 12% (839/7,055) met criteria for depression with 29% (241/839) on pharmacological therapy. Those with untreated depression were less likely to endorse symptoms of persistent low mood or worthlessness, but there was no difference in age or general practitioner (GP) visits compared to those on treatment. Over 3% (223/7,055) of participants had DI and less than one-third had visited their GP within the last year. CONCLUSIONS: This study demonstrates that two-thirds of depressed older people are not prescribed antidepressant/antipsychotic therapy. It is important to raise awareness of depression among older people and healthcare professionals, with particular focus on the fact that LLD is not an inevitable consequence of ageing and effective treatment is available. PMID- 29335039 TI - Replacing carbohydrate during a glucose challenge with the egg white portion or whole eggs protects against postprandial impairments in vascular endothelial function in prediabetic men by limiting increases in glycaemia and lipid peroxidation. AB - Eggs attenuate postprandial hyperglycaemia (PPH), which transiently impairs vascular endothelial function (VEF). We hypothesised that co-ingestion of a glucose challenge with egg-based meals would protect against glucose-induced impairments in VEF by attenuating PPH and oxidative stress. A randomised, cross over study was conducted in prediabetic men (n 20) who ingested isoenegertic meals (1674 kJ (400 kcal)) containing 100 g glucose (GLU), or 75 g glucose with 1.5 whole eggs (EGG), seven egg whites (WHITE) or two egg yolks (YOLK). At 30 min intervals for 3 h, brachial artery flow-mediated dilation (FMD), plasma glucose, insulin, cholecystokinin (CCK), lipids (total, LDL- and HDL-cholesterol; TAG), F2 isoprostanes normalised to arachidonic acid (F2-IsoPs/AA), and methylglyoxal were assessed. In GLU, FMD decreased at 30-60 min and returned to baseline levels by 90 min. GLU-mediated decreases in FMD were attenuated at 30-60 min in EGG and WHITE. Compared with GLU, FMDAUC was higher in EGG and WHITE only. Relative to baseline, glucose increased at 30-120 min in GLU and YOLK but only at 30-90 min in EGG and WHITE. GlucoseAUC and insulinAUC were also lower in EGG and WHITE only. However, CCKAUC was higher in EGG and WHITE compared with GLU. Compared with GLU, F2-IsoPs/AAAUC was lower in EGG and WHITE but unaffected by YOLK. Postprandial lipids and methylglyoxal did not differ between treatments. Thus, replacing a portion of a glucose challenge with whole eggs or egg whites, but not yolks, limits postprandial impairments in VEF by attenuating increases in glycaemia and lipid peroxidation. PMID- 29335040 TI - Does a cognitive stress test predict progression from mild cognitive impairment to dementia equally well in clinical versus population-based settings? AB - : ABSTRACTBackground:Evidence suggests that semantic interference may be a sensitive indicator of early dementia. We examined the utility of the Semantic Interference Test (SIT), a cognitive stress memory paradigm which taps proactive and retroactive semantic interference, for predicting progression from mild cognitive impairment (MCI) to dementia in both a clinical and a population-based sample. METHODS: Participants with MCI in the clinical (n = 184) and population based (n = 435) samples were followed for up to four years. We employed receiver operating characteristic (ROC) methods to establish optimal thresholds for four different SIT indices. Threshold performance was compared in the two samples using logistic and Cox proportional hazard regression models. RESULTS: Within four years, 42 (22.8%) MCI individuals in the clinical sample and 45 (10.3%) individuals in the population-based sample progressed to dementia. Overall classification accuracy of SIT thresholds ranged from 61.4% to 84.8%. Different subtests of the SIT had slightly different performance characteristics in the two samples. However, regression models showed that thresholds established in the clinical sample performed similarly in the population sample before and after adjusting for demographics and other baseline neuropsychological test scores. CONCLUSIONS: Despite differences in demographic composition and progression rates, baseline SIT scores predicted progression from MCI to dementia similarly in both samples. Thresholds that best predicted progression were slightly below thresholds established for distinguishing between amnestic MCI and cognitively normal subjects in clinical practice. This confirms the utility of the SIT in both clinical and population-based samples and establishes thresholds most predictive of progression of individuals with MCI. PMID- 29335042 TI - Training and assessment in functional endoscopic sinus surgery. AB - BACKGROUND: Functional endoscopic sinus surgery is a common procedure performed within otolaryngology, but it carries potential for significant life-changing complications. It is therefore essential that trainees undergo adequate training. The European Working Time Directive has led to reduced operating time for the trainee surgeon. With variable access and the cost implications associated with cadaveric specimens, simulation can be an invaluable educational resource in surgical training. The current literature regarding the various simulation methodologies that have been used in functional endoscopic sinus surgery training is discussed. METHOD: A literature search was conducted using the key words 'nasal', 'nasal polyps', 'endoscope', 'education and simulation', 'endoscopic sinus surgery' and 'training'. RESULTS: Twelve articles were identified; of these, eight trialled the use of simulators, two utilised ovine models and two used task trainers. CONCLUSION: Simulation has shown benefit in functional endoscopic sinus surgery training; however, a robust platform accessible to ENT trainees is lacking. PMID- 29335041 TI - Clinical correlates of resilience factors in geriatric depression. AB - BACKGROUND: Traditional perspectives conceptualize resilience as a trait and depression as resulting from resilience deficiency. However, research indicates that resilience varies substantially even among adults who are clinically depressed, as well as across the lifespan of an individual. Few studies have investigated resilience in depression, and even fewer have examined resilience in depressed older adults. METHODS: Three hundred thirty-seven adults >=60 years with major depressive disorder completed the Connor-Davidson Resilience Scale (CD RISC) and measures of mental health, quality of life (QOL), and medical comorbidity. Exploratory factor analysis was used to explore the factor structure of the CD-RISC. Correlations and general linear models were used to examine associations between resilience and other variables. RESULTS: The rotated component matrix indicated a four-factor model. Sorting of items by highest factor loading revealed constructs associated with (1) grit, (2) active coping self-efficacy, (3) accommodative coping self-efficacy, and (4) spirituality. Resilience was significantly correlated with increased age, lower cognitive functioning, greater cerebrovascular risk, and greater medical comorbidity. Resilience was negatively associated with mental health symptoms (depression, apathy, and anxiety) and positively associated with QOL. The final optimal model identified less depression, less apathy, greater medical comorbidity, higher QOL, and minority (non-White) race as factors that significantly explained variability in resilience. CONCLUSIONS: Resilience was significantly associated with a range of mental health constructs in a sample of older adults with depression. Future clinical trials and dismantling studies may help determine whether interventions targeting grit, active coping, accommodative coping, and spirituality can increase resilience and help prevent and treat depression in older adults. PMID- 29335043 TI - Stentless mirrored L-shaped septonasal flap versus stented flapless technique for endoscopic endonasal repair of bilateral congenital choanal atresia: a prospective randomised controlled study. AB - OBJECTIVES: To compare the outcomes of endoscopic repair of bilateral congenital choanal atresia using a flap technique without stenting versus endoscopic repair using stenting without a flap. METHODS: A prospective randomised controlled study was conducted, comprising 72 patients with bilateral congenital choanal atresia. The patients were randomised into two groups. Group A (42 patients) underwent endoscopic repair using a mirrored L-shaped flap without stenting, and group B (30 patients) underwent endoscopic repair using stenting without a flap. RESULTS: At a mean follow-up period of 18.2 months, endoscopic assessment revealed a patent posterior choana in 81 per cent and 83.33 per cent of patients in group A and group B respectively. Choanal stenosis occurred in 21.40 per cent and 33.33 per cent of patients in group A and group B respectively. Granulation tissue was observed in 28.6 per cent and 53.3 per cent of patients in group A and group B respectively. CONCLUSION: The endoscopic approach utilising a flap without stenting is safe and effective, with a high success rate. PMID- 29335044 TI - Leges Sine Moribus Vanae. PMID- 29335045 TI - Letter to the Editor. PMID- 29335047 TI - Money in Tension with Ethics: A Commentary. AB - Monetary incentives are frequently in tension with evidence-based and cost effective clinical care, thus posing an ethical concern in the practice of dentistry. The purpose of this commentary was to examine the issue of treating children in the context of caries risk assessment and with specific reference to the periodic oral examination, radiographic surveillance, topical fluorides, and the pumice rubber prophylaxis. PMID- 29335048 TI - Antiplaque, Antifungal Effectiveness of Aloevera Among Intellectually Disabled Adolescents: Pilot Study. AB - PURPOSE: Various candida species have been associated with poor oral hygiene and active carious lesions. The purpose of this study was to evaluate the effectiveness of aloe vera compared to triclosan toothpaste against total candida, C. albicans, C. tropicalis, Candida krusei, and plaque/gingivitis among intellectually disabled adolescents over 30 days. METHODS: A double-blind prospective randomized trial was conducted among 40 intellectually disabled adolescents randomly allocated into aloe vera/triclosan groups. The gingival (Loe and Silness index), plaque (Silness and Loe index), and candidal carriage counts were assessed at baseline and follow-up. Caregivers brushed the participant's teeth twice a day using a modified bass method and refrained from any other oral hygiene practices for at least two hours prior to assessment. RESULTS: Aloe vera contaiing toothpaste caused significant reductions in gingival inflammation and plaque index scores compared to the triclosan group at the end of 30 days. Also, total candidal counts and C. albicans counts were significantly lower in the aloe vera group compared to triclosan at the end of the 30-day follow-up (P<0.05). CONCLUSION: Aloe vera-containing toothpaste was effective in reducing plaque, gingivitis, and overall candidal counts compared to triclosan. Moreover, individuals treated with aloe vera experienced improved oral health status without any negative side effects. PMID- 29335049 TI - Dental Treatment and Expenditures Under General Anesthesia Among Medicaid Enrolled Children in North Carolina. AB - PURPOSE: Many studies reporting dental utilization under general anesthesia (GA) are dated. The purpose of this study was to provide contemporaneous data about children receiving dental GA by: (1) determining trends in utilization and associated expenditures; and (2) examining the effects of provider distribution. METHODS: This time series cross-sectional study of Medicaid-eligible children ages zero to eight years old in North Carolina used aggregate Medicaid claims from State Fiscal Years (SFY) 2011 to 2015 to collect demographic and dental treatment information. Descriptive statistics were stratified by age and year to examine trends over time. Panel analysis techniques were used to explore regional effects of provider distribution on dental GA utilization. RESULTS: For SFY 2011 to 2015, the overall dental utilization rate was 517.1 per 1,000 (total enrolled equals 632,941 children/year), and the dental GA utilization rate was 15.8 per 1,000. Total dental expenditures averaged $113 million per year, and dental GA averaged $16.7 million per year. The dental GA proportion of expenditures increased over time (P<.001). Provider distribution did not affect dental GA utilization rate (P=.178) but did increase the number of children receiving dental GA (P<.001). CONCLUSIONS: Utilization and expenditures associated with dental treatment under general anesthesia continue to increase. While this reflects increased access to care, interventions should be examined to provide preventive care earlier in a child's life. PMID- 29335050 TI - Are Hypomineralized Primary Molars and Canines Associated with Molar-Incisor Hypomineralization? AB - PURPOSE: The purpose of this study was to evaluate the prevalence of and relationship between hypomineralized second primary molars (HSPM) and hypomineralized primary canines (HPC) with molar-incisor hypomineralization (MIH) in 1,963 schoolchildren. METHODS: The European Academy of Paediatric Dentistry (EAPD) criterion was used for scoring HSPM/HPC and MIH. Only children with four permanent first molars and eight incisors were considered in calculating MIH prevalence (n equals 858); for HSPM/HPC prevalence, only children with four primary second molars (n equals 1,590) and four primary canines (n equals 1,442) were considered. To evaluate the relationship between MIH/HSPM, only children meeting both criteria cited were considered (n equals 534), as was true of MIH/HPC (n equals 408) and HSPM/HPC (n equals 360; chi square test and logistic regression). RESULTS: The prevalence of MIH was 14.69 percent (126 of 858 children). For HSPM and HPC, the prevalence was 6.48 percent (103 of 1,592) and 2.22 percent (32 of 1,442), respectively. A significant relationship was observed between MIH and both HSPM/HPC (P<0.001). The odds ratio for MIH based on HSPM was 6.31 (95 percent confidence interval [CI] equals 2.59 to 15.13) and for HPC was 6.02 (95 percent CI equals 1.08 to 33.05). CONCLUSION: The results led to the conclusion that both hypomineralized second primary molars and hypomineralized primary canines are associated with molar-incisor hypomineralization, because children with HSPM/HPC are six times more likely to develop MIH. PMID- 29335051 TI - Effectiveness of a Preventive Recall Strategy for Children After Dental Rehabilitation with General Anesthesia. AB - PURPOSE: To test a more frequent preventive recall strategy following full-mouth dental rehabilitation (FMDR) in children with early childhood caries (ECC). METHODS: Patients were randomized into two groups: controls, who were scheduled to return at six-month intervals (6-MR); and the intervention group, who were scheduled to return at three-month intervals (3-MR and 6-MR). At baseline and at each recall, a caries risk assessment (CRA) and dental exam were completed. Analyses followed CONSORT recommendations, resulting in three analyses: intent-to treat; per-protocol; and an actual recall analysis. RESULTS: Intent-to-treat analysis showed no significant difference in CRA at six months (P>0.7); per protocol analysis showed borderline significance (P>.08); and actual recall analysis showed a statistically significant difference in CRA at six months (P=.021). For patients with both 3-MR and 6-MR, 44 percent were assessed at a high caries risk level; for patients with only a 6-MR, 72 percent were assessed as a high caries risk level (P=.021). No significant differences were found in caries incidence at six months. CONCLUSIONS: Following full-mouth dental rehabilitation, patients who returned for follow-ups at both three- and six-month intervals had a greater decrease in caries risk level compared to patients seen at six-month follow-up intervals. PMID- 29335052 TI - An Evaluation of Bite Pattern in Children with Severe-Early Childhood Caries Before and After Complete Dental Rehabilitation. AB - PURPOSE: The purpose of this study was to examine the changes in bite characteristics of children before and after the placement of multiple stainless steel crowns (SSCs) under general anesthesia (GA). METHODS: Twenty children scheduled for treatment under general anesthesia who needed SSCs in three or more posterior quadrants were included in this study. The bite was digitally analyzed and recorded preoperatively and at one and four weeks postoperatively. The occlusion time, number of force outliers, and distribution of force at each visit was recorded and compared. RESULTS: The placement of the SSCs in children significantly improved the bite characteristics of the participants. The placement of the SSC did not alter occlusion time, and there were no significant differences in occlusion time. While there was an increase in the number of outliers in the first week after the placement of the crown, there was a reduction in the total number of outliers at the end of one month. All the patients treated with bilateral placement of an SSC showed a posterior balanced occlusion post-operatively, a finding that was retained over the one-month follow up period. CONCLUSION: Bilateral placement of SSCs under general anesthesia does not significantly alter the occlusion of the child. PMID- 29335053 TI - Facial Nerve Paresis: Case Report of Blunt Facial Nerve Injury. AB - Facial nerve paresis is an uncommon but concerning condition in the pediatric population. The function and anatomy of the facial nerve is complex, and injuries to this structure may be associated with devastating physiological and psychological implications for the affected child and family. The purpose of this paper was to report a case involving a six-year-old Caucasian female who suffered a blunt traumatic injury to the orofacial region resulting in partial paralysis of the seventh cranial nerve. Following the injury, the child was unable to fully elevate the corner of her mouth. The deficit occurred immediately, and she experienced a prolonged course of recovery. PMID- 29335054 TI - Orbital, Mediastinal and Cervicofacial Subcutaneous Emphysema after Dental Rehabilitation in a Pediatric Patient. AB - Subcutaneous emphysema is a rare possible complication of dental procedures. The majority of the dental literature describes cases of localized areas of subcutaneous emphysema following various dental procedures, with a large number of these cases seen following intraoral surgical procedures. Classically, subcutaneous emphysema occurs within minutes to hours after conclusion of dental procedures and is commonly misdiagnosed as either an allergic reaction or acute post-operative swelling. This case report describes a four-year-old male who underwent dental rehabilitation for routine restorative dentistry without extractions under general anesthesia. He subsequently developed extensive subcutaneous emphysema involving the right periorbital region, cervicofacial spaces, and caudal extension to include the superior aspect of the mediastinum. The purpose of this report was to provide a brief review of the prior literature on the subject, report on the case, and review the management for patients with subcutaneous emphysema. PMID- 29335056 TI - Vegetable and Fruit Consumption among Chinese Adults and Associated Factors: A Nationally Representative Study of 170,847 Adults. AB - OBJECTIVE: This study examined vegetable and fruit (VF) consumption rate and its associated factors among Chinese adults. METHODS: Nationally representative data from the 2013 China Chronic Disease Surveillance survey were used. Dietary intake data, including VF consumption during the last 12 months, were collected. All analyses were weighted to obtain nationally representative estimates. Associations between VF consumption and other factors (e.g., meal frequency and physical activity) were examined through logistic regression analysis. RESULTS: The average fruit consumption was 102.3 g/day (95% CI: 97.0-107.6) and the average vegetable consumption was 350.6 g/day (95% CI: 339.3-361.8). Over half (53.2%, 95% CI: 50.9-55.4) of Chinese adults met the VF consumption of 400 g/day recommended by the World Health Organization (WHO). Rural residents had a higher prevalence of low VF consumption rate than urban residents [49.20% (95% CI: 46.2% 52.2%) vs. 44.0% (95% CI: 41.7%-46.3%) P < 0.01]. Old age (OR = 1.01, 95% CI: 1.00-1.01), low educational level, low income, minority ethnicity (OR = 1.41, 95% CI: 1.15-1.74), underweight (OR = 1.17, 95% CI: 1.03-1.33), single marital status (OR = 1.20, 95% CI: 1.08-1.33), low health literacy, irregular breakfast (OR = 1.20, 95% CI: 1.04-1.38) or lunch (OR = 1.58, 95% CI: 1.26-1.99) habits, and no leisure-time physical activity were associated with low VF consumption. CONCLUSION: Only half of Chinese adults met the VF consumption recommended by the WHO. Low socio-economic status, irregular diet, and poor health literacy were likely associated with low VF consumption. National efforts and programs are needed to promote VF consumption. PMID- 29335057 TI - Study on the Simultaneously Quantitative Detection for beta-Lactoglobulin and Lactoferrin of Cow Milk by Using Protein Chip Technique. AB - OBJECTIVE: To research a protein chip method which can simultaneously quantitative detect beta-Lactoglobulin (beta-L) and Lactoferrin (Lf) at one time. METHODS: Protein chip printer was used to print both anti-beta-L antibodies and anti-Lf antibodies on each block of protein chip. And then an improved sandwich detection method was applied while the other two detecting antibodies for the two antigens were added in the block after they were mixed. The detection conditions of the quantitative detection for simultaneous measurement of beta-L and Lf with protein chip were optimized and evaluated. Based on these detected conditions, two standard curves of the two proteins were simultaneously established on one protein chip. Finally, the new detection method was evaluated by using the analysis of precision and accuracy. RESULTS: By comparison experiment, mouse monoclonal antibodies of the two antigens were chosen as the printing probe. The concentrations of beta-L and Lf probes were 0.5 mg/mL and 0.5 mg/mL, respectively, while the titers of detection antibodies both of beta-L and Lf were 1:2,000. Intra- and inter-assay variability was between 4.88% and 38.33% for all tests. The regression coefficients of protein chip comparing with ELISA for beta L and Lf were better than 0.734, and both of the two regression coefficients were statistically significant (r = 0.734, t = 2.644, P = 0.038; and r = 0.774, t = 2.998, P = 0.024). CONCLUSION: A protein chip method of simultaneously quantitative detection for beta-L and Lf has been established and this method is worthy in further application. PMID- 29335058 TI - Association of Dietary Pattern during Pregnancy and Gestational Diabetes Mellitus: A Prospective Cohort Study in Northern China. AB - OBJECTIVE: To examine the association of maternal dietary patterns during pregnancy with gestational diabetes mellitus (GDM) in northern China. METHODS: The dietary intakes of pregnant women were recorded twice by 24-hour dietary recalls for three days prior to having been diagnosed with GDM, at 5-15 and 24-28 gestational weeks, respectively. GDM was diagnosed, and serum glycosylated hemoglobin (HbA1c) was measured at 24-28 weeks. Dietary patterns were assessed by factor analysis. The association of the dietary pattern with GDM and HbA1c was examined by multiple logistic models. RESULTS: Of 753 participants, 64 (8.5%) were diagnosed with GDM. Four dietary patterns were identified: Western pattern (dairy, baked/fried food and white meat), traditional pattern (light-colored vegetables, fine grain, red meat and tubers), mixed pattern (edible fungi, shrimp/shellfish and red meat) and prudent pattern (dark-colored vegetables and deep-sea fish). Compared with the prudent pattern, both the Western pattern and the traditional pattern were associated with an increased risk of GDM (aOR = 4.40, 95% CI: 1.58-12.22; aOR = 4.88, 95% CI: 1.79-13.32) and a high level of HbA1c (aOR = 12.37, 95% CI: 1.47-103.91; aOR = 26.23, 95% CI: 2.54-270.74). Compared to the lowest quartile (Q), Q3 of the Western pattern scores and Q3-Q4 of the traditional pattern scores were associated with a higher risk of GDM. CONCLUSION: The consumption of the Western pattern or the traditional pattern during pregnancy may increase the risk of GDM. PMID- 29335059 TI - Association of alpha2A-Adrenergic Receptor Genetic Variants with Platelet Reactivity in Chinese Patients on Dual Antiplatelet Therapy Undergoing Percutaneous Coronary Intervention. AB - OBJECTIVE: The alpha 2A-adrenergic receptor gene (ADRA2A) polymorphism in individuals modifies the antiplatelet response to sympathetic stimulation. The aim of this study was to investigate the effect of ADRA2A variants on platelet reactivity in Chinese patients on dual antiplatelet therapy (DAPT) after undergoing percutaneous coronary intervention (PCI). METHODS: From March 2011 to March 2013, 1,024 patients were enrolled in this prospective, single-center, observational study in China. Four single nucleotide polymorphisms (SNPs) of ADRA2A gene (rs11195419, rs3750625, rs13306146, and rs553668) and CYP2C19*2 were detected by ligase detection reaction (LDR), and adenosine diphosphate (ADP) inhibition was detected by thromboelastography (TEG(r)). RESULTS: The minor allele frequencies of ADRA2A SNPs were common. Platelet ADP inhibition was significantly different among patients carrying rs11195419 (adjusted P = 0.022) and rs3750625 (adjusted P = 0.016). The homozygous allele carriers had the lowest ADP inhibition. However, ADP inhibition was not significantly different in rs553668 and rs13306146. At the multivariate analysis, rs11195419 (P = 0.033), rs3750625 (P = 0.020) and CYP2C19*2 (P = 0.002) were independent predictors of ADP inhibition. Subgroups analysis based on sex showed rs11195419 (P = 0.003) and rs3750625 (P = 0.002) were significantly associated with ADP inhibition in males, but not in females. CONCLUSION: ADRA2A genetic variations were associated with ADP-induced platelet aggregation during DAPT in Chinese patients undergoing PCI, and the effect was particularly more pronounced in males. PMID- 29335060 TI - Characteristics of Long-term Nonprogressors and Viremia Controllers Infected with HIV-1 via Contaminated Blood Donations or Transfusions Conducted 20 Years Earlier. AB - To characterize long-term nonprogressors (LTNPs) and viremia controllers (VCs), infected with HIV-1 through contaminated blood donation or transfusion between 1992 and 1996 in Henan, China. LTNPs and VCs were defined by CD4+T lymphocyte (CD4) count and viral load (VL). Of 29,294 patients infected with HIV-1 via contaminated blood donation or transfusion that had conducted for more than 20 years, 92 were LTNPs/VCs. There were 70 LTNPs (0.24%), 43 VCs (0.15%), and 48 LTNPs+VCs- (0.16%). VCs had a significantly lower CD4 nadir, compared to LTNPs and LTNPs+VCs-, and no significant differences for the highest VL and HIV-1 DNA. Cases P4 and P5 were LTNPs, while their VL reached approximately 4.3 log copies/mL. P6 was a VC, but with CD4 < 500 cells/MUL constantly. Data from the LTNPs/VCs cohort provided valuable information, future research is needed. PMID- 29335061 TI - Estimating HIV Incidence Rates among MSM in an Urban Area of Chongqing Using Three Approaches. AB - To evaluate the HIV pandemic in Chongqing, the pooled PCR, IgG-capture BED enzyme immunoassay (BED-CEIA), and cohort observations were used to estimate the HIV incidences among men who have sex with men (MSM). 617 MSM subjects completed the survey at a voluntary counseling and testing (VCT) site. The observed HIV incidence was 12.5 per 100 P-Ys (95% CI = 9.1-15.7). The annual acute HIV infection (AHI) incidence estimated by pooled PCR was 14.0% (95% CI = 10.9-17.1). The HIV-1 annual incidence estimated based on the BED-CEIA was 12.0% (95% CI = 7.5-16.5). The HIV incidences estimated by these three approaches were consistent and complementary. The HIV incidence rates were alarmingly high with an uptrend among the urban MSM of Chongqing. PMID- 29335062 TI - Epidemiology of Measles Cases in South Darfur State, Sudan, 2011-2015. AB - Case-based surveillance measles data was defined according to World Health Organization (WHO) guidelines. A total of 511 measles cases were studied from 2011 to 2015 in Southern Darfur State, Sudan and 58.1% of cases were confirmed from Nyala city. About 43.4% of cases were males, 56.6% of cases were female, and 47.7% were children under five years old. Similarity, within February to June, the cases increased by 8.0% in children vaccinated through measles campaign, and 5.3% in children that used child vaccination card and 78.7% in unvaccinated one. The epidemiologically linked (EPI-Linked) measles cases declined from 2011 to 2015; consequently, Measles still remain to be a significant challenge in south Darfur state, Sudan. PMID- 29335063 TI - Tea Consumption is Associated with Increased Risk of Kidney Stones in Northern Chinese: A Cross-sectional Study. AB - Kidney stones are a common urinary system condition that can progress to kidney disease. Previous studies on the association between tea consumption and kidney stones are inconsistent. A cross-sectional study to investigate the association between tea consumption and kidney stones was conducted from 2013 to 2014 and recruited 9,078 northern Chinese adults. A total of 8,807 participants were included in the final analysis. Participants' prevalence of kidney stones was 1.07%, 1.73%, and 2.25% based on their tea consumption frequency of never, occasionally, and often groups, respectively. Compared with the 'never' group, the odds ratios (95% confidence intervals) for the occurrence of kidney stones were 1.57 (1.00-2.46) and 1.65 (1.06-2.57) in the 'occasionally' and 'often' groups, respectively. After adjusting for sex, age, and other potential confounding factors, tea consumption still significantly increased the risk of kidney stones. Tea consumption is independently associated with an increased risk of kidney stones in the investigated population, suggesting that a decrease in the consumption of tea may be a preventive strategy for kidney stones. PMID- 29335064 TI - Real-time Assessment of Cytosolic, Mitochondrial, and Nuclear Calcium Levels Change in Rat Pheochromocytoma Cells during Pulsed Microwave Exposure Using a Genetically Encoded Calcium Indicator. AB - Little information is available about the effects of exposure to pulsed microwaves on neuronal Ca2+ signaling under non-thermal conditions. In this study, rat pheochromocytoma (PC12) cells were exposed to pulsed microwaves for 6 min at a specific absorption rate (SAR) of 4 W/kg to assess possible real-time effects. During microwave exposure, free calcium dynamics in the cytosol, mitochondria, and nucleus of cells were monitored by time-lapse microfluorimetry using a genetically encoded calcium indicator (ratiometric-pericam, ratiometric pericam-mt, and ratiometric-pericam-nu). We established a waveguide-based real time microwave exposure system under accurately controlled environmental and dosimetric conditions and found no significant changes in the cytosolic, mitochondrial, or nuclear calcium levels in PC12 cells. These findings suggest that no dynamic changes occurred in [Ca2+]c, [Ca2+]m, or [Ca2+]n of PC12 cells at the non-thermal level. PMID- 29335065 TI - Effects of Maternal Marginal Iodine Deficiency on Interactions between Cerebellar Bergmann Glia Cells and Purkinje Cells in Rat Offspring. AB - Iodine deficiency (ID) during early pregnancy has an adverse effect on children's psychomotor and motor function but the mechanism has not been clarified. Therefore, our aim was to study the effect of maternal marginal ID on cerebellar neurodevelopment and the underlying mechanism. After obtaining marginal ID rats, we examined interactions between Bergmann glia cells (BGs) and Purkinje cells (PCs) using immunofluorescence and expression of the glutamate transporter and receptor by western blot. Our results showed that marginal ID reduced the number of contacted points between BGs and PCs, and disturbed expression of the glutamate transporter and receptor. Our results support the hypothesis that marginal ID inhibits interactions of BGs-PCs, which may be involved in abnormal regulation of the glutamate transporter and receptor. PMID- 29335066 TI - Up- and Down-regulated Leukemia-related Protein 16 Affects ERalpha Expression and Prolactin Secretion by GH3 Cells. AB - Prolactinoma is an estrogen-related tumor and leukemia-related protein 16 (LRP16) is correlated with the progression of estrogen-related tumors, but the regulatory mechanism between LRP16 and prolactinoma remain unclear. This study demonstrates a variation in LRP16 with estrogen receptor alpha (ERalpha) in prolactinoma models and the up and downregulation effects of LRP16 on prolactin secretion of pituitary adenomas cells (GH3 cells). In our study, 50 male SD rats (30-day-old) were randomly divided into five groups of 10 rats each. After 120 days of treatment, the rats were sacrificed, and the expression of LRP16 and ERalpha were examined by Western blot and immunohistochemistry to explore the changes in ERalpha, LRP16, and prolactin. After siRNA transfection of the respective genes, the GH3 cells were cultured, and their secretory function as well as the expression of ERalpha mRNA and prolactin were analyzed by enzyme-linked immunosorbent assay and real-time-polymerase chain reaction analysis. The results show that secretion of prolactin by GH3 cells can be affected by up and downregulating LRP16 expression, which may provide a novel medical therapy in clinical trials. PMID- 29335067 TI - Gata6 in pluripotent stem cells enhance the potential to differentiate into cardiomyocytes. AB - Pluripotent stem cell (PSC) variations can cause significant differences in the efficiency of cardiac differentiation. This process is unpredictable, as there is not an adequate indicator at the undifferentiated stage of the PSCs. We compared global gene expression profiles of two PSCs showing significant differences in cardiac differentiation potential. We identified 12 up-regulated genes related to heart development, and we found that 4 genes interacted with multiple genes. Among these genes, Gata6 is the only gene that was significantly induced at the early stage of differentiation of PSCs to cardiomyocytes. Gata6 knock-down in PSCs decreased the efficiency of cardiomyocyte production. In addition, we analyzed 6 mESC lines and 3 iPSC lines and confirmed that a positive correlation exists between Gata6 levels and efficiency of differentiation into cardiomyocytes. In conclusion, Gata6 could be utilized as a biomarker to select the best PSC lines to produce PSC-derived cardiomyocytes for therapeutic purposes. [BMB Reports 2018; 51(2): 85-91]. PMID- 29335068 TI - Imprinted gene Zinc finger protein 127 is a novel regulator of master pluripotency transcription factor, Oct4. AB - Induced pluripotent stem cells (iPSCs) show great promise for replacing current stem cell therapies in the field of regenerative medicine. However, the original method for cellular reprogramming, involving four exogenous transcription factors, is characterized by low efficiency. Here, we focused on using epigenetic modifications to enhance the reprogramming efficiency. We hypothesized that there would be a new reprogramming factor involved in DNA demethylation, acting on the promoters of pluripotency-related genes. We screened proteins that bind to the methylated promoter of Oct4 and identified Zinc finger protein 127 (Zfp127), the functions of which have not yet been identified. We found that Zfp127 binds to the Oct4 promoter. Overexpression of Zfp127 in fibroblasts induced demethylation of the Oct4 promoter, thus enhancing Oct4 promoter activity and gene expression. These results demonstrate that Zfp127 is a novel regulator of Oct4, and may become a potent target to improve cellular reprogramming. [BMB Reports 2018; 51(5): 242-248]. PMID- 29335069 TI - Functional roles of glutamic acid E143 and E705 residues in the N-terminus and transmembrane domain 7 of Anoctamin 1 in calcium and noxious heat sensing. AB - Anoctamin 1 (ANO1) is an anion channel that is activated by changes in cytosolic Ca2+ concentration and noxious heat. Although the critical roles of ANO1 have been elucidated in various cell types, the control of its gating mechanisms by Ca2+ and heat remain more elusive. To investigate critical amino acid residues for modulation of Ca2+ and heat sensing, we constructed a randomized mutant library for ANO1. Among 695 random mutants, reduced Ca2+ sensitivity was observed in two mutants (mutant 84 and 87). Consequently, the E143A mutant showed reduced sensitivity to Ca2+ but not to high temperatures, whereas the E705V mutant exhibited reduced sensitivity to both Ca2+ and noxious heat. These results suggest that the glutamic acids (E) at 143 and 705 residues in ANO1 are critical for modulation of Ca2+ and/or heat responses. Furthermore, these findings help to provide a better understanding of the Ca2+-mediated activation and heat-sensing mechanism of ANO1. [BMB Reports 2018; 51(5): 236-241]. PMID- 29335070 TI - Cell proliferation and migration mechanism of caffeoylserotonin and serotonin via serotonin 2B receptor in human keratinocyte HaCaT cells. AB - Caffeoylserotonin (CaS), one derivative of serotonin (5-HT), is a secondary metabolite produced in pepper fruits with strong antioxidant activities. In this study, we investigated the effect of CaS on proliferation and migration of human keratinocyte HaCaT cells compared to that of 5-HT. CaS enhanced keratinocyte proliferation even under serum deficient condition. This effect of CaS was mediated by serotonin 2B receptor (5-HT2BR) related to the cell proliferation effect of 5-HT. We also confirmed that both CaS and 5-HT induced G1 progression via 5-HT2BR/ERK pathway in HaCaT cells. However, Akt pathway was additionally involved in upregulated expression levels of cyclin D1 and cyclin E induced by CaS by activating 5-HT2BR. Moreover, CaS and 5-HT induced cell migration in HaCaT cells via 5-HT2BR. However, 5-HT regulated cell migration only through ERK/AP 1/MMP9 pathway while additional Akt/NF-kappaB/MMP9 pathway was involved in the cell migration effect of CaS. These results suggest that CaS can enhance keratinocyte proliferation and migration. It might have potential as a reagent beneficial for wound closing and cell regeneration. [BMB Reports 2018; 51(4): 188 193]. PMID- 29335072 TI - Rebound excitability mediates motor abnormalities in Parkinson's disease. AB - Parkinson's disease (PD) is a debilitating disorder resulting from loss of dopamine neurons. In dopamine deficient state, the basal ganglia increases inhibitory synaptic outputs to the thalamus. This increased inhibition by the basal ganglia output is known to reduce firing rate of thalamic neurons that relay motor signals to the motor cortex. This 'rate model' suggests that the reduced excitability of thalamic neurons is the key for inducing motor abnormalities in PD patients. We reveal that in response to inhibition, thalamic neurons generate rebound firing at the end of inhibition. This rebound firing increases motor cortical activity and induces muscular responses that triggers Parkinsonian motor dysfunction. Genetic and optogenetic intervention of the rebound firing prevent motor dysfunction in a mouse model of PD. Our results suggest that inhibitory synaptic mechanism mediates motor dysfunction by generating rebound excitability in the thalamocortical pathway. [BMB Reports 2018; 51(1): 3-4]. PMID- 29335071 TI - Adequate concentration of B cell leukemia/lymphoma 3 (Bcl3) is required for pluripotency and self-renewal of mouse embryonic stem cells via downregulation of Nanog transcription. AB - B cell leukemia/lymphoma 3 (Bcl3) plays a pivotal role in immune homeostasis, cellular proliferation, and cell survival, as a co-activator or co-repressor of transcription of the NF-kappaB family. Recently, it was reported that Bcl3 positively regulates pluripotency genes, including Oct4, in mouse embryonic stem cells (mESCs). However, the role of Bcl3 in the maintenance of pluripotency and self-renewal activity is not fully established. Here, we report the dynamic regulation of the proliferation, pluripotency, and self-renewal of mESCs by Bcl3 via an influence on Nanog transcriptional activity. Bcl3 expression is predominantly observed in immature mESCs, but significantly decreased during cell differentiation by LIF depletion and in mESC-derived EBs. Importantly, the knockdown of Bcl3 resulted in the loss of self-renewal ability and decreased cell proliferation. Similarly, the ectopic expression of Bcl3 also resulted in a significant reduction of proliferation, and the self-renewal of mESCs was demonstrated by alkaline phosphatase staining and clonogenic single cell-derived colony assay. We further examined that Bcl3-mediated regulation of Nanog transcriptional activity in mESCs, which indicated that Bcl3 acts as a transcriptional repressor of Nanog expression in mESCs. In conclusion, we demonstrated that a sufficient concentration of Bcl3 in mESCs plays a critical role in the maintenance of pluripotency and the self-renewal of mESCs via the regulation of Nanog transcriptional activity. [BMB Reports 2018; 51(2): 92-97]. PMID- 29335073 TI - [Enhance research, prevention and control of pertussis for protecting public confidence in vaccination: focus on the adverse events of vaccine with insufficient potency and its long-term impacts]. AB - On November 3, 2017, the China Food and Drug Administration reported that the potency indexes of two batches of diphtheria-pertussis-tetanus vaccines produced by two companies did not reach the requirements. Insufficient potency could affect the protection effect of these vaccines immunization. Currently, pertussis cases have already showed an increasing trend in China and could last for several years. Such an increase could be linked to these adverse events of vaccine with insufficient potency, which could become an evidence to challenge or deny the effectiveness of vaccination, and brings a persistent inhibition of the public's acceptance for vaccination. The wider global context of pertussis resurgence, previous underestimate on the domestic pertussis, the promotion of detection methods, the change of knowledge about pertussis, the confirmation of pertussis in elder children and adults, the antigenicity variation of pertussis strains could lead to a significant increase of pertussis cases. Health researchers and clinical workers should raise awareness about these factors, and assess rationally the impact of vaccine titer deficiency on pertussis epidemiology for maintaining and promoting public confidence in vaccination. PMID- 29335074 TI - Trends in narcotics and sedative use during mechanical ventilation of preterm infants in Canadian neonatal intensive care units. AB - OBJECTIVE: Mechanical ventilation (MV) in preterm infants (PTI) causes discomfort. Whether it causes pain is controversial. Meta analysis reviews of published work on PTI during MV have shown no clinically significant impact of opioids on pain scales, and hence not recommended for routine use in neonatal intensive care units (NICUs). Similarly regular use of sedative midazolam is also not recommended. Therefore we hypothesized a downward trend in narcotics and sedatives used in MV of PTI in NICUs. This study aimed to assess trends of sedatives and narcotics use during MV of PTI in Canadian NICUs during 2004-2009. METHODS: PTI born at gestational age (GA) of <35 weeks requiring invasive MV for >24 hours were identified retrospectively from the Canadian Neonatal Network database for 2004-2009. PTI were excluded if moribund on admission, had major congenital anomalies, surgery (except laser eye surgery), necrotizing enterocolitis, chest tube or history of maternal narcotic abuse. PTI were classified according to whether they received any narcotics (morphine, fentanyl, methadone, sufentanyl, meperidine, alfentynl and codiene) or sedatives (chloral hydrate, midazolam, lorazepam, phenobarbital, pentobarbital, ketamine and propofol) for >24 consecutive hours during MV. Trends of narcotics and sedatives were assessed using the Cochrane-Armitage Trend test separately for PTI born at <29 and 29-34 weeks of GA. RESULTS: Among 5 638 study subjects, 2 169 (38.5%) received narcotics and 897 (15.9%) received sedatives. The most common narcotics were morphine (62.2%) and fentanyl (63.8%) and sedatives were phenobarbital (44.9%) and chloral hydrate (44.2%). A significant decreasing trend (P<0.01) in the use of any sedatives during MV was observed in PTI <29 and 29-34 weeks of GA. However, the use of any narcotics during MV increased significantly (P=0.03) among PTI <29 weeks of GA, and no change in trend was detected for PTI born at 29 34 weeks of GA. CONCLUSIONS: The use of sedatives during MV in PTI born at <35 weeks of GA was positively affected, however the narcotics use during MV remained constant for PTI born at 29-34 weeks, and increased in extremely low GA group (less than 29 weeks) suggesting evidence based practice change was not observed during the study period. PMID- 29335075 TI - [A study of Ververck index in 16 865 singleton neonates with a gestational age of 27-42 weeks in Shenzhen, China]. AB - OBJECTIVE: Ververck index (VI) reflects thoracic development, body type, and nutritional status. This study aimed to investigate the VI of singleton neonates with a gestational age (GA) of 27-42 weeks at birth, and to establish percentile curves of VI of the neonates. METHODS: Cross-sectional cluster sampling was performed between April 2013 and September 2015. Body weight, body length, and chest circumference were measured for 16 865 singleton neonates with a GA of 27 42 weeks in two hospitals in Shenzhen, China. VI was calculated and the percentile curves of VI were plotted for the neonates. RESULTS: Mean VIs were obtained for singleton neonates with a gestational age of 27-42 weeks (in three groups of male, female, and both sexes), and related 3rd-97th percentile curves were plotted. As for the 50th percentile curve, the singleton neonates with a GA of 27 weeks had the lowest 50th percentile value of VI, which gradually increased with the increase in GA. The singleton neonates with a GA of 42 weeks had the highest 50th percentile value of VI. Girls had a slightly higher 50th percentile value of VI than boys in all GA groups. CONCLUSIONS: VI of neonates increases with the increase in GA. Female neonates may have a slightly better thoracic development, body type, and nutritional status than male neonates at birth. The percentile curves of VI plotted for singleton neonates with a GA of 27-42 weeks (in three groups of male, female, and both sexes) can provide a basis for evaluating thoracic development, body type, and nutritional status of neonates at birth in Shenzhen, China. PMID- 29335076 TI - [Value of arterial blood lactic acid in the evaluation of disease severity and prognosis in neonatal shock]. AB - OBJECTIVE: To evaluate the value of blood lactic acid (BLA) as a predictor for the severity and prognosis of neonatal shock. METHODS: A total of 326 neonates with shock were enrolled and divided into three groups based on the severity, namely mild group (n=147), moderate group (n=105), and severe group (n=74). BLA level was measured during and early after (about 6 hours later) fluid resuscitation, and lactate clearance rate (LCR) was calculated. The receiver operating characteristic (ROC) curve was applied to evaluate the predictive value of BLA in neonatal shock. RESULTS: BLA level was high in all subjects prior to treatment, and was highest in the severe group and lowest in the mild group (P<0.01). BLA level was significantly higher among patients with septic shock than among those with hypovolemic, cardiogenic, and asphyxiating shock (P<0.05). BLA level was significantly reduced in patients in recovery after treatment (P<0.05). Mortality was significantly lower in patients with BLA level <=4 mmol/L or LCR >=10% than in those with BLA level >4 mmol/L or LCR <10% (P<0.01). BLA at 11.15 mmol/L had 100% sensitivity and 96.8% specificity in predicting severe shock. BLA at 10.65 mmol/L had 88.9% sensitivity and 74.1% specificity in predicting the prognosis (survival or dead) of newborns with shock. CONCLUSIONS: In neonates with shock, arterial BLA level increases as the disease severity increases and is associated with prognosis, so it is a useful predictor of the severity and prognosis of neonatal shock. PMID- 29335077 TI - [Burden of pediatric cancer in Jiangxi, China, in 2010 and 2015]. AB - OBJECTIVE: To study the burden of pediatric cancer in Jiangxi, China, in 2010 and 2015 and its changes from 2010 to 2015. METHODS: The data of pediatric cancer in Jiangxi in 2010 and 2015 were collected from the Global Burden of Disease Study 2015 in China, including number of cases, number of deaths, years of life lost (YLL), years lived with disability (YLD), and disability-adjusted life years (DALY). The standardized incidence rate, mortality rate, and DALY rate were calculated with the national census data in 2010 as the standard population, in order to evaluate the changes in incidence, mortality, and disease burden of pediatric cancer in Jiangxi. RESULTS: In both 2010 and 2015, boys had higher numbers of cases, deaths, and DALY than girls, and the 5-14 years group had higher numbers than the 0-4 years group; boys had higher incidence rate, mortality rate, and DALY rate than girls, and the 0-4 years group had higher rates than the 5-14 years group. In 2015, the standardized incidence rate of pediatric cancer was reduced by 6.66% in the 0-4 years group and 17.56% in the 5 14 years group; the standardized mortality rate was reduced by 11.34% in the 0-4 years group and 21.78% in the 5-14 years group; the standardized DALY rate was reduced by 11.27% in the 0-4 years group and 21.67% in the 5-14 years group. Among the different types of pediatric cancer, leukemia had the highest standardized DALY rate in 2010 and 2015, followed by brain cancer and non Hodgkin's lymphoma. CONCLUSIONS: There was a certain reduction in the burden of pediatric cancer in Jiangxi from 2010 to 2015. Leukemia, brain cancer, and non Hodgkin's lymphoma are the focus of prevention and treatment, and children aged less than 5 years and boys should be closely monitored. PMID- 29335078 TI - [Value of indoleamine 2,3-dioxygenase in diagnosis of systemic inflammatory response syndrome after cardiopulmonary bypass in children with congenital heart disease]. AB - OBJECTIVE: To study the value of indoleamine 2,3-dioxygenase (IDO) in the early diagnosis of systemic inflammatory response syndrome (SIRS) after cardiopulmonary bypass in children with congenital heart disease. METHODS: A total of 90 children with congenital heart disease who underwent cardiopumonary bypass surgery between May 2012 and January 2016 were enrolled. According to the prsence or absence of SIRS after surgery, they were divided into SIRS group (n=43) and control group (n=47). Peripheral blood samples were collected before surgery, during surgery, and after surgery. Serum levels of IDO, C-reactive protein (CRP), and interleukin 6 (IL-6) were measured and compared between the two groups. The receiver operating characteristic (ROC) curve was used to evaluate their diagnostic efficiency. RESULTS: Compared with the control group, the SIRS group had higher serum CRP levels at 72 hours after surgery, higher IL-6 levels during surgery and at 72 hours after surgery, and higher IDO levels at 24 and 72 hours after surgery. IDO had a certain value in the diagnosis of SIRS at 24 hours after surgery with an area under the ROC curve (AUC) of 0.793, a specificity of 100%, and a sensitivity of 58.14%. CRP, IL-6, and IDO had a certain value in the diagnosis of SIRS at 72 hours after surgery. IDO had the highest diagnostic efficiency with an AUC of 0.927, a specificity of 95.74%, and a sensitivity of 76.74% at 72 hours after surgery. CONCLUSIONS: IL-6, CRP, and IDO have a certain value in the diagnosis of SIRS after surgery for congenital heart disease, and IDO has a higher diagnostic efficiency. IDO can predict the development of SIRS in children after surgery for congenital heart disease earlier. PMID- 29335079 TI - [Expression of plasma miRNA-497 in children with sepsis-induced myocardial injury and its clinical significance]. AB - OBJECTIVE: To study the expression of plasma miRNA-497 in children with sepsis induced myocardial injury and its clinical significance. METHODS: A total of 148 children with sepsis were enrolled. According to the presence or absence of myocardial injury, these children were divided into myocardial injury group (n=58) and non-myocardial injury group (n=90). The two groups were compared in terms of the changes in plasma levels of miRNA-497, cardiac troponin I (cTnI), creatine kinase-MB (CK-MB), N-terminal pro-brain natriuretic peptide (NT-proBNP), procalcitonin (PCT), and C-reactive protein (CRP) and left ventricular ejection fraction (LVEF). The receiver operating characteristic (ROC) curve was plotted to evaluate the value of plasma miRNA-497, cTnI, and CK-MB in the diagnosis of myocardial injury. A Pearson correlation analysis was used to determine the correlation of miRNA-497 with cTnI, CK-MB, NT-proBNP, PCT, CRP, and LVEF. RESULTS: Compared with the non-myocardial injury group, the myocardial injury group had significantly higher plasma levels of miRNA-497, cTnI, CK-MB, NT proBNP, PCT, and CRP (P<0.05). Plasma miRNA-497, cTnI, and CK-MB when measured alone or in combination had an area under the ROC curve of 0.918, 0.931, 0.775, and 0.940 respectively. At the optimal cut-off value of 2.05, miRNA-497 had a sensitivity of 90.4% and a specificity of 91.2%. The correlation analysis showed that there was a good correlation between plasma miRNA-497 and cTnI in children with myocardial injury (r=0.728, P<0.01). CONCLUSIONS: Plasma miRNA-497 has a similar value as cTnI in the diagnosis of sepsis-induced myocardial injury in children and may be used as a potential marker for early diagnosis of myocardial injury. PMID- 29335080 TI - [Clinical characteristics of refractory Mycoplasma pneumoniae pneumonia in children]. AB - OBJECTIVE: To provide a basis for early diagnosis and treatment of refractory Mycoplasma pneumoniae pneumonia (RMPP) in children by comparing the clinical characteristics of RMPP and general Mycoplasma pneumoniae pneumonia (MPP). METHODS: Children with MPP hospitalized between October 2015 and December 2016 were selected as study subjects. According to the diagnostic criteria, children were divided into RMPP group (n=152) and MPP group (n=551). The differences between the two groups in the basic situation, clinical manifestations, infection parameters and myocardial enzymes were compared. RESULTS: There were no significant differences in gender and age between the RMPP and MPP groups (P>0.05). The peak temperature in the RMPP group was significantly higher than that in the MPP group on the first day of admission (P<0.01). The percentage of children with augmentation in the RMPP group was lower than that in the MPP group (P=0.009). The percentage of neutrophils [Ne(%)] and serum procalcitonin (PCT) levels in the RMPP group were both higher than those in the MPP group (P<0.05), while the percentage of lymphocytes was significantly lower in the RMPP group (P<0.05). The serum levels of aspartate aminotransferase (AST) and lactate dehydrogenase (LDH) in the RMPP group were also higher than those in the MPP group (P<0.05). Binary logistic regression analysis showed that the peak temperature and LDH were closely related to RMPP in children (P<0.05). Receiver operating characteristic (ROC) curve analysis showed that the area under the curve (AUC) of the peak temperature and LDH for the diagnosis of RMPP was 0.647 and 0.637 respectively. In children <=2 years old, when the threshold value of LDH was 400 U/L, the diagnostic sensitivity was 52.63% and the specificity was 54.84%. In children above 2 years old, when the threshold value of LDH was 335 U/L, the diagnostic sensitivity was 69.92% and the specificity was 51.55%. CONCLUSIONS: The children with RMPP have a high fever in the early stage. Meanwhile there are abnormal laboratory test results in these children. Elevated serum LDH levels have a high clinical value of early diagnosis of RMPP, especially in children above 2 years. PMID- 29335081 TI - [Expression of vascular intercellular adhesion molecule-1 and its significance in children with bronchiolitis]. AB - OBJECTIVE: To investigate the expression of intercellular adhesion molecule-1 (ICAM-1) in serum and induced sputum supernatant in children with bronchiolitis, as well as its role in the pathogenesis of bronchiolitis in children. METHODS: A total of 67 children with bronchiolitis who were diagnosed and hospitalized between July 2015 and January 2017 were enrolled. According to the diagnostic criteria, these children were divided into mild group with 22 children, moderate group with 24 children, and severe group with 21 children. A total of 20 children who underwent physical examination were enrolled as healthy control group. ELISA was used to measure the level of ICAM-1 in serum and induced sputum supernatant in the children with bronchiolitis in the acute stage and recovery stage and the children in the healthy control group. RESULTS: Compared with the healthy control group, the mild, moderate, and severe bronchiolitis groups had a significant increase in the level of ICAM-1 in serum and sputum (P<0.01). Compared with the mild group, the moderate and severe groups had a significant increase in the level of ICAM-1 in serum and sputum (P<0.01). Compared with the moderate group, the severe group had a significant increase in the level of ICAM-1 in serum and sputum (P<0.01). Compared with the children with bronchiolitis in the acute stage, the children in the recovery stage had a significant reduction in the level of ICAM-1 in serum and sputum (P<0.01). The correlation analysis showed that in the acute stage, the level of ICAM-1 in serum was positively correlated with that in sputum in children with bronchiolitis (r=0.875, P<0.001). CONCLUSIONS: ICAM-1 is involved in the pathogenesis of bronchiolitis and is associated with disease severity. PMID- 29335082 TI - [A comparative analysis of anti-N-methyl-D-aspartate receptor encephalitis with or without abnormal findings on cranial magnetic resonance imaging]. AB - OBJECTIVE: To investigate the clinical features of children with anti-N-methyl-D aspartate receptor (anti-NMDAR) encephalitis with normal or abnormal cranial magnetic resonance imaging (MRI) findings via a comparative analysis. METHODS: A retrospective analysis was performed for the clinical data of 33 children with anti-NMDAR encephalitis. The clinical features and prognosis were compared between the children with normal and abnormal cranial MRI findings. RESULTS: In the 33 children with anti-NMDAR encephalitis, the most common initial symptoms were seizures (61%) and involuntary movement (61%), followed by language disorder (54%), mental and behavioral abnormalities (52%), and disturbance of consciousness (30%). All children had positive anti-NMDAR antibody in the cerebrospinal fluid, and 29 children (88%) had positive serum antibody. Of all the children, 15 (46%) had increased leukocytes in the cerebrospinal fluid, 3 (9%) had an increase in protein, and 29 (88%) had positive oligoclonal band; 26 children (79%) had electroencephalographic abnormalities (epileptic wave, slow wave, or a combination of these two types of waves). One child experienced respiratory failure. One child was found to have germinoma in the sellar region during follow-up. Of all the 33 children, 13 (39%) had abnormal cranial MRI findings, with hypointensity or isointensity on T1W1 and hyperintensity on T2WI and T2-FLAIR; 2 children had dural enhancement. As for the location of lesion, 5 children (38%) had lesions in the temporal lobe, 3 (23%) in the frontal lobe, 3 (23%) in the basal ganglia, 2 (15%) in the parietal lobe, 2 (15%) in the occipital lobe, 2 (15%) in the brainstem, 1 (8%) in the thalamus, and 1 (8%) in the cerebellum. Among the 13 children with abnormal cranial MRI findings, 5 (38%) had lesions mainly in the grey matter and 8 (62%) had lesions mainly in the white matter. Compared with the children with normal cranial MRI findings, the children with abnormal cranial MRI findings had significantly higher proportion of children with prodromal infection, incidence rate of disturbance of consciousness, probability of recurrence, Glasgow score, incidence rate of increased leukocytes in the cerebrospinal fluid, and application rate of second line treatment (P<0.05). CONCLUSIONS: Children with anti-NMDAR encephalitis and abnormal cranial MRI findings have certain clinical features, which may provide guidance for the evaluation of disease conditions and the selection of diagnostic and treatment measures. PMID- 29335083 TI - [Clinical and cytogenetic study in a child with de novo chromosome 9 abnormality]. AB - This study aimed to analyze the clinical phenotype of chromosome 9p deletion or duplication and its relationship with karyotype. A patient, female, aged 6 months, visited the hospital due to motor developmental delay. Karyotype analysis identified abnormalities of chromosome 9 short arm, and high-throughput sequencing found 9p24.3-9p23 deletion and 9p23-9p13.1 duplication. Her parents had a normal karyotype. Karyotype analysis combined with high-throughput sequencing is of great significance for improving the efficiency of etiological diagnosis in children with motor developmental delay or multiple congenital deformities and mental retardation. PMID- 29335084 TI - [Influence of cow's milk protein allergy on the diagnosis of functional gastrointestinal diseases based on the Rome IV standard in infants and young children]. AB - OBJECTIVE: To study the influence of cow's milk protein allergy (CMPA) on the diagnosis of functional gastrointestinal diseases (FGID) based on the Rome IV standard in infants and young children. METHODS: A total of 84 children aged 1 month to 3 years who were diagnosed with CMPA were enrolled as the case group, and 84 infants and young children who underwent physical examination and had no CMPA were enrolled as the control group. The pediatricians specializing in gastroenterology asked parents using a questionnaire for the diagnosis of FGID based on the Rome IV standard to assess clinical symptoms and to diagnose FGID. RESULTS: The case group had a significantly higher incidence rate of a family history of allergies than the control group (P<0.05). In the case group, 38 (45%) met the Rome IV standard for the diagnosis of FGID, while in the control group, 13 (15%) met this standard (P<0.05). According to the Rome IV standard for FGID, the case group had significantly higher diagnostic rates of reflex, functional diarrhea, difficult defecation, and functional constipation than the control group (P<0.05). The children who were diagnosed with FIGD in the control group were given conventional treatment, and those in the case group were asked to avoid the intake of cow's milk protein in addition to the conventional treatment. After 3 months of treatment, the case group had a significantly higher response rate to the treatment than the control group (P<0.05). CONCLUSIONS: In infants and young children, CMPA has great influence on the diagnosis of FGID based on the Rome IV standard. The possibility of CMPA should be considered during the diagnosis of FGID. PMID- 29335085 TI - [Impact of transition readiness on quality of life in children with chronic diseases]. AB - OBJECTIVE: To investigate the current quality of life in children with chronic diseases, and to explore the impact of transition readiness on quality of life. METHODS: A total of 332 children with chronic diseases from two children's hospitals in Shanghai, China were enrolled. A self-designed demographic questionnaire, Pediatric Quality of Life Inventory 4.0 Generic Core Scales (PedsQLTM 4.0), and Self-Management and Transition to Adulthood with Rx=Treatment (STARx) Questionnaire were used to evaluate transition readiness and quality of life. RESULTS: The children with chronic diseases had a significantly lower total quality of life score than the national norm (74.66+/-15.85 vs 81.81+/-12.03; P<0.001). Doctor-patient communication and health care responsibilities (the child's abilities to take care of himself/herself and adaptation to the process of diagnosis and treatment from childhood to adulthood) were positively correlated with the scores on each dimension of quality of life (P<0.05). Duration of disease, time of absence from school within six months, and the number of types of drugs taken orally were negatively correlated with the total quality of life score (rs=-0.172, -0.236, and -0.280; P<0.05). The residence (urban or rural area), monthly family income, parents' educational level, and father's occupation had significant influence on children's quality of life (P<0.05). The hierarchical multiple regression analysis revealed that doctor patient communication and health care responsibilities led to a 14.3% increase in the explanation of the total variation in quality of life (P<0.001). CONCLUSIONS: Quality of life is not satisfactory in children with chronic diseases. Two domains of transition readiness, namely the abilities to communicate with health providers and health care responsibilities, are major factors influencing quality of life in these children. PMID- 29335086 TI - [Research progress in drug therapy for bronchopulmonary dysplasia in preterm infants]. AB - Bronchopulmonary dysplasia (BPD) is the most common long-term complication in surviving extremely preterm infants. This may lead to pulmonary hypertension, increase late neonatal mortality, and cause abnormal neural development. There is still controversy over the efficacy, as well as advantages and disadvantages, of drug therapy for BPD in preterm infants. This article reviews the research progress in the drug therapy for BPD. PMID- 29335087 TI - [Research advances in the association between transient receptor potential cation channel 6 and kidney disease]. AB - Transient receptor potential cation channel 6 (TRPC6) is a member of the transient receptor superfamily encoded by the TRPC6 gene and is widely expressed in tissues and organs of the human body, especially in the glomerular podocytes. TRPC6 interacts with various slit diaphragm (SD) proteins including podocin, nephrin, ACTN4, and CD2AP to maintain the normal structure and function of glomerular podocytes. Foot process fusion caused by podocyte damage due to various factors is the most important morphological change in kidney disease. This article reviews the biological function of TRPC6 and its effect on kidney disease. PMID- 29335088 TI - [Role of programmed death-1 in viral infectious diseases]. AB - The research on the immunoregulatory effect of programmed death-1 (PD-1) in infectious diseases mainly focuses on chronic viral infection, but there are few studies on acute viral infection. In chronic viral infection, PD-1 is highly expressed on the surface of CD8+ T cells, which is a sign of CD8+ T cell depletion. Recent studies have shown that in chronic viral infection, PD-1 is also highly expressed on the surface of regulatory T cells and binds to programmed death-ligand 1 (PD-L1) on the surface of exhausted CD8+ T cells, resulting in a stronger inhibitory effect on CD8+ T cell immunity. Blocking the PD-1/PD-L1 signaling pathway between exhausted CD8+ T cells and regulatory T cells can significantly reverse the depletion of CD8+ T cells and greatly improve the antiviral effect of CD8+ T cells. However, the role of the PD-1/PD-L1 signaling pathway in acute viral infection remains unknown. This article summarizes the latest research on PD-1 in infectious diseases and discusses its role in acute and chronic viral infection. PMID- 29335089 TI - Associations between clinical indicators of quality and aged-care residents. AB - Objectives To ascertain Australian multistate prevalence and incidence of five commonly collected clinical indicators of aged-care home quality and to measure associations between these clinical indicators and levels of care needs and consumer and staff satisfaction.Methods A retrospective analysis of national audit data collected from 426 facilities between 2015 and 2016 was performed. Regression models were used to examine associations between five clinical indicators (falls, pressure injury, physical restraint, unplanned weight loss and polypharmacy) and level of care needs measured by the Aged Care Funding Instrument (ACFI) and consumer and care staff survey responses.Results With the exception of polypharmacy, commonly collected negative clinical outcomes were rare events. Compared with care homes with <25% of residents having high-level care needs (high ACFI), homes with 25<75% high-ACFI residents had more occurrences of all negative clinical outcomes except pressure injury. Homes with >=75% high-ACFI residents reported the highest rates of polypharmacy (odds ratio 1.48, 95% confidence interval 1.39 - 1.57). Falls, unplanned weight loss and pressure injury were inversely associated with satisfaction scores adjusted for residents' level of care needs.Conclusions This first Australian study of multistate clinical indicator data suggests interpretation of clinical indicators of aged-care home quality requires consideration of the level of residents' care needs.What is known about the topic? Many Australian aged-care providers use quality indicators (QI) through benchmarking companies or in-house programs. The five most widely used aged-care clinical QIs in Australia are falls, pressure injury, physical restraint, unplanned weight loss and polypharmacy. Prevalence and incidence of these QIs are highly variable among Australian studies. A consistent message in the international literature is that residents' clinical characteristics influence QI outcomes at baseline and may continue to influence outcomes over time. Study of associations between Australian aged-care home characteristics and QI outcomes has been limited.What does this paper add? This is the first Australian study of multistate clinical QI data. It is also the first to consider the level of resident care needs in the interpretation of clinical QI outcomes and exploration of the association between level of consumer and staff satisfaction and QI outcomes.What are the implications for practitioners? Understanding the connections between aged-care home characteristics, consumer and staff perceptions and clinical QIs is crucial in the meaningful interpretation of QI outcomes in context. With the recent introduction of the National Aged Care Quality Indicator Program, it is timely to review national policy, to gauge current quality of care and the measure of care quality in the sector, and to develop directions for possible research to inform and resolve debates regarding the potential influence and unplanned effects that such a program may have. PMID- 29335090 TI - Improving the efficacy of healthcare services for Aboriginal Australians. AB - Objective The aim of the present systematic review was to examine the enablers for effective health service delivery for Aboriginal Australians.Methods This systematic review was undertaken in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Papers were included if they had data related to health services for Australian Aboriginal people and were published between 2000 and 2015. The 21 papers that met the inclusion criteria were assessed using the Effective Public Health Practice Project Quality Assessment Tool for Quantitative Studies. Seven papers were subsequently excluded due to weak methodological approaches.Results There were two findings in the present study: (1) that Aboriginal people fare worse than non-Aboriginal people when accessing usual healthcare services; and (2) there are five enablers for effective health care services for Australian Aboriginal people: cultural competence, participation rates, organisational, clinical governance and compliance, and availability of services.Conclusions Health services for Australian Aboriginal people must be tailored and implementation of the five enablers is likely to affect the effectiveness of health services for Aboriginal people. The findings of the present study have significant implications in directing the future design, funding, delivery and evaluation of health care services for Aboriginal Australians.What is known about the topic? There is significant evidence about poor health outcomes and the 10-year gap in life expectancy between Aboriginal and non-Aboriginal people, and limited evidence about improving health service efficacy.What does this paper add? This systematic review found that with usual health care delivery, Aboriginal people experience worse health outcomes. This paper identifies five strategies in the literature that improve the effectiveness of health care services intended for Aboriginal people.What are the implications for practitioners? Aboriginal people fare worse in both experience and outcomes when they access usual care services. Health services intended for Aboriginal people should be tailored using the five enablers to provide timely, culturally safe and high-quality care. PMID- 29335091 TI - Repositioning interprofessional education from the margins to the centre of Australian health professional education ? what is required? AB - Objective This paper examines the implementation and implications of four development and research initiatives, collectively titled the Curriculum Renewal Studies program (CRS), occurring over a 6-year period ending in 2015 and focusing on interprofessional education (IPE) within Australian pre-registration health professional education.Methods The CRS was developed as an action-focused and participatory program of studies. This research and development program used a mixed-methods approach. Structured survey, interviews and extensive documentary analyses were supplemented by semi-structured interviews, focus groups, large group consultations and consensus building methods. Narrative accounts of participants' experiences and an approach to the future development of Australian IPE were developed.Results Detailed accounts of existing Australian IPE curricula and educational activity were developed. These accounts were published and used in several settings to support curriculum and national workforce development. Reflective activities engaging with the findings facilitated the development of a national approach to the future development of Australian IPE - a national approach focused on coordinated and collective governance and development.Conclusion This paper outlines the design of an innovative approach to national IPE governance and development. It explores how ideas drawn from sociocultural theories were used to guide the choice of methods and to enrich data analysis. Finally, the paper reflects on the implications of CRS findings for health professional education, workforce development and the future of Australian IPE.What is known about the topic? IPE to enable the achievement of interprofessional and collaborative practice capabilities is widely accepted and promoted. However, many problems exist in embedding and sustaining IPE as a system-wide element of health professional education. How these implementation problems can be successfully addressed is a health service and education development priority.What does this paper add? The paper presents a summary of how Australian IPE was conceptualised, developed and delivered across 26 universities during the period of the four CRS studies. It points to strengths and limitations of existing IPE. An innovative approach to the future development of Australian IPE is presented. The importance of sociocultural factors in the development of practitioner identity and practice development is identified.What are the implications for practitioners? The findings of the CRS program present a challenging view of current Australian IPE activity and what will be required to meet industry and health workforce expectations related to the development of an Australian interprofessional- and collaborative-practice-capable workforce. Although the directions identified pose considerable challenges for the higher education and health sectors, they also provide a consensus-based approach to the future development of Australian IPE. As such they can be used as a blueprint for national development. PMID- 29335092 TI - The Journal of Cataract & Refractive Surgery: New look, new year. PMID- 29335093 TI - Changes in biomechanically corrected intraocular pressure and dynamic corneal response parameters before and after transepithelial photorefractive keratectomy and femtosecond laser-assisted laser in situ keratomileusis. AB - PURPOSE: To evaluate the changes in biomechanically corrected intraocular pressure (IOP) and new dynamic corneal response parameters measured by a dynamic Scheimpflug analyzer before and after transepithelial photorefractive keratectomy (PRK) and femtosecond laser-assisted laser in situ keratomileusis (LASIK). SETTING: Yonsei University College of Medicine and Eyereum Eye Clinic, Seoul, South Korea. DESIGN: Retrospective case series. METHODS: Medical records of patients having transepithelial PRK or femtosecond-assisted LASIK were examined. The primary outcome variables were biomechanically corrected IOP and dynamic corneal response parameters, including deformation amplitude ratio 2.0 mm, stiffness parameter at first applanation, Ambrosio relational thickness through the horizontal meridian, and integrated inverse radius before the procedure and 6 months postoperatively. RESULTS: Of the 129 patients (129 eyes) in the study, 65 had transepithelial PRK and 64 had femtosecond-assisted LASIK. No significant differences in biomechanically corrected IOP were noted before and after surgery. The deformation amplitude ratio 2.0 mm and integrated inverse radius increased, whereas the stiffness parameter at first applanation and the Ambrosio relational thickness through the horizontal meridian decreased after surgery (P < .001). The changes in deformation amplitude ratio 2.0 mm and integrated inverse radius were smaller in transepithelial PRK than femtosecond-assisted LASIK (P < .001). Using analysis of covariance, with refractive error change or corneal thickness change as a covariate, the changes in deformation amplitude ratio 2.0 mm and integrated inverse radius were smaller in transepithelial PRK than femtosecond-assisted LASIK (P < .001). CONCLUSIONS: The dynamic Scheimpflug analyzer showed stable biomechanically corrected IOP measurement before and after surgery. The changes in dynamic corneal response parameters were smaller with transepithelial PRK than with femtosecond-assisted LASIK, indicating less of a biomechanical effect with transepithelial PRK. PMID- 29335094 TI - Clinical outcomes of laser in situ keratomileusis with an aberration-neutral profile centered on the corneal vertex comparing vector planning with manifest refraction planning for the treatment of myopic astigmatism. AB - PURPOSE: To evaluate clinical outcomes of laser in situ keratomileusis (LASIK) with an aberration-neutral profile centered on the estimated visual axis (considering 70% of the pupil offset toward the corneal vertex) comparing vector planning with manifest refraction planning for the treatment of myopic astigmatism. SETTING: Muscat Eye Laser Center, Muscat, Sultanate of Oman, Muscat, Oman. DESIGN: Retrospective case series. METHODS: The outcomes were evaluated at a 6-month follow-up in eyes showing ocular residual astigmatism (ORA) over 0.75 diopters (D) preoperatively. RESULTS: Eighty-five treatments were based on manifest astigmatism (preoperative sphere -2.11 D +/- 1.3 [SD], cylinder -0.90 +/ 1.0 D), and 79 treatments were based on vector planning (preoperative sphere 2.46 +/- 1.5 D, cylinder -0.78 +/- 0.79 D). At a 6-month follow-up, 128 patients (164 eyes) were evaluated and no significant differences were observed between the 2 groups in terms of difference between corrected distance visual acuity and uncorrected distance visual acuity (UDVA) (P = .1, t test and Fisher exact test Snellen lines 1 or better, P = .4) and postoperative UDVA (P = .05, t test and Fisher exact test for UDVA 20/16 or better, P = .3). Significant differences were observed between the 2 groups in terms of achieved spherical equivalent (P = .04), corneal toricity, and ORA (P < .001, t test and Fisher exact test for ORA <=0.75 D, P < .001). CONCLUSION: Performing LASIK for myopic astigmatism with the vector planning approach resulted in comparable visual outcomes to manifest refraction planning. PMID- 29335095 TI - Vector analysis of astigmatic changes and optical quality outcomes after wavefront-guided laser in situ keratomileusis using a high-resolution aberrometer. AB - PURPOSE: To assess the ocular optical quality results as well as the astigmatic changes after wavefront-guided laser in situ keratomileusis (LASIK) in eyes with myopic astigmatism. SETTING: Instituto Clinico-Quirurgico Oftalmologico, Bilbao, Vizcaya, Spain. DESIGN: Prospective case series. METHODS: Thirty-three eyes having wavefront-guided LASIK with the Star S4IR excimer laser combined with the iDesign system were enrolled in the study. Changes in visual acuity, refraction, higher-order aberrations, and ocular scattering index (OSI) were evaluated during a 3-month follow-up. The Alpins method was used to analyze the astigmatic changes. RESULTS: A significant reduction was observed in refraction (P < .001), with significant improvement in uncorrected (UDVA) and corrected (CDVA) distance visual acuities (P < .001). All eyes had a spherical equivalent within +/-0.50 diopter (D) and UDVA of 20/25 or better at 90 days after surgery. A total of 27.3% of eyes gained lines of CDVA. No significant changes were observed in primary coma and spherical aberration (P >= .551). Likewise, no significant changes were observed in OSI (P = .361), with a mean 90-day postoperative value of 0.66 +/- 0.58 (SD). A significant change to negative values of the magnitude of error (P = .007) and a significant decrease in the correction index (P = .004) were observed during the follow-up, with mean 90-day postoperative values of 0.24 +/- 0.28 D and 0.86 +/- 0.17 D, respectively. CONCLUSION: Wavefront-guided LASIK using a high-resolution aberrometer provided safe and efficacious correction of myopic astigmatism, with preservation of the ocular optical quality. PMID- 29335096 TI - Clinically significant laser in situ keratomileusis flap striae. AB - PURPOSE: To describe the incidence, risk factors, and outcomes before and after irrigation of clinically significant laser in situ keratomileusis (LASIK) flap striae. SETTING: Multisurgeon multicenter standardized protocol practice. DESIGN: Retrospective case-control series. METHODS: Eyes with striae necessitating flap relift and irrigation were identified. Preoperative, intraoperative, and postoperative variables were collected. Incidence, risk factors, and outcomes were assessed. RESULTS: Of the 109 403 eyes that had LASIK, the incidence of striae-treated eyes was 0.79% (n = 875), with 8.7% irrigated the first hour after surgery. The preoperative spherical equivalent (SE) and ablation depth exponentially increased the striae risk (R2 = 0.9674; P < .001). Striae induced a small hyperopic shift that reversed after the relift (mean 0.22 diopter [D] +/- 0.52 [SD] versus -0.02 +/- 0.45 D) (P < .001). After relifting, 68.0%, 87.0%, and 96.0% of eyes had an uncorrected distance visual acuity (UDVA) of 20/20, 20/25, 20/40 or better versus 25.0%, 55.0%, and 84.0%, respectively, before the relift (P < .001). Thirteen percent fewer striae-treated eyes achieved a UDVA of 20/20. Before relifting, 51.0% of striae eyes lost 1 or more lines of corrected distance visual acuity, with a safety index reverting to control values (0.99 versus 1.00) (P > .05) after the relift. A laser refractive enhancement was performed in 6.28% of relifted striae eyes versus 3.04% in nonstriae control eyes. CONCLUSIONS: Flap striae requiring surgeon intervention occurred in 0.79% of eyes. Higher preoperative SE values were associated with an exponential increase risk for striae. Treatment by lifting and irrigation significantly improved the accuracy, efficacy, and safety to a level close to that of contralateral control eyes, although striae-treated eyes were more likely to need excimer laser retreatment. PMID- 29335097 TI - Aspheric versus wavefront-guided aspheric photorefractive keratectomy in eyes with significant astigmatism. AB - PURPOSE: To compare the refractive and higher-order aberrations (HOAs) outcomes after photorefractive keratectomy (PRK) in patients with significant astigmatism using aspheric versus wavefront-guided aspheric profiles. SETTING: Ophthalmic Research Center and Department of Ophthalmology, Shahid Beheshti University of Medical Sciences, Negah Eye Hospital, Tehran, Iran. DESIGN: Prospective randomized case series. METHODS: One eye of each patient with a refractive astigmatism more than 2.00 diopters (D) randomly received aspheric PRK. In the other eye, wavefront-guided and aspheric treatment was performed using a personalized treatment advanced algorithm. Visual acuity, refractive errors, and HOAs were compared between the 2 groups preoperatively and 12 months postoperatively. RESULTS: The study comprised 32 patients (64 eyes). The mean preoperative refractive astigmatism was -4.07 D +/- 1.64 (SD) and -4.02 +/- 1.55 D in the aspheric group and wavefront-guided aspheric group, respectively (P = .2). The mean postoperative astigmatism was -0.46 +/- 0.37 D and -0.82 +/- 0.53 D in the aspheric group and wavefront-guided aspheric group, respectively (P = .02). Postoperatively, the root mean square of total HOAs was significantly increased in both groups. However, compared with wavefront-guided aspheric PRK, aspheric PRK induced fewer HOAs (P = .003). CONCLUSIONS: In eyes with high astigmatism, post-PRK residual astigmatism was lower in the aspheric group than in the wavefront-guided aspheric group. The increase in HOAs was significantly higher in the wavefront-guided aspheric group than in the aspheric group. PMID- 29335098 TI - Factors affecting corneal incision position during femtosecond laser-assisted cataract surgery. AB - PURPOSE: To compare the expected versus actual position and dimension of corneal incisions during femtosecond laser-assisted cataract surgery. SETTING: Private Ophthalmic Clinic, Sydney, NSW, Australia. DESIGN: Retrospective case series. METHODS: Video recordings of femtosecond laser-assisted cataract surgery with a Lensx laser were reviewed. The deviation of the main and 2 secondary incisions from the expected position were correlated with globe tilt, globe displacement, and biometric data. The globe tilt was inferred from anterior capsule tilt. Globe displacement was measured. The Softfit contact lens thickness used in the patient interface was measured separately. RESULTS: The primary incision internal and external exits were within 142 MUm +/- 70 (SD) and 151 +/- 75 MUm of the planned position. The dimensions and position did not correlate with biometric variables. The superior secondary incision external exit was displaced centrally (321 +/- 84 MUm) and the internal exit was displaced peripherally (84 +/- 102 MUm). The inferior secondary incision external exit was displaced centrally (278 +/- 142 MUm) and the internal exit was displaced peripherally (190 +/- 133 MUm). Multivariate analysis showed that the external and internal exits of the superior (adjusted r2 = 0.36, P < .001; r2 = 0.15, P < .001) and inferior secondary incisions (r2 = 0.67, P < .001; r2 = 0.46, P < .001) correlated with globe tilt and displacement. CONCLUSIONS: The primary incisions were close to the expected dimensions. The secondary incision position was affected by eye tilt and eccentric docking. These could potentially be improved with optical coherence tomography guidance. PMID- 29335099 TI - Femtosecond laser-assisted cataract surgeries reported to the European Registry of Quality Outcomes for Cataract and Refractive Surgery: Baseline characteristics, surgical procedure, and outcomes. AB - PURPOSE: To describe a large cohort of femtosecond laser-assisted cataract surgeries in terms of baseline characteristics and the related outcomes. SETTING: Eighteen cataract surgery clinics in 9 European countries and Australia. DESIGN: Prospective multicenter case series. METHODS: Data on consecutive eyes having femtosecond laser-assisted cataract surgery in the participating clinics were entered in the European Registry of Quality Outcomes for Cataract and Refractive Surgery (EUREQUO). A trained registry manager in each clinic was responsible for valid reporting to the EUREQUO. Demographics, preoperative corrected distance visual acuity (CDVA), risk factors, type of surgery, type of intraocular lens, visual outcomes, refractive outcomes, and complications were reported. RESULTS: Complete data were available for 3379 cases. The mean age was 64.4 years +/- 10.9 (SD) and 57.8% (95% confidence interval [CI], 56.1-59.5) of the patients were women. A surgical complication was reported in 2.9% of all cases (95% CI, 2.4 3.5). The mean postoperative CDVA was 0.04 +/- 0.15. logarithm of the minimum angle of resolution. A biometry prediction error (spherical equivalent) was within +/-0.5 diopter in 71.8% (95% CI, 70.3-73.3) of all surgeries. Postoperative complications were reported in 3.3% (95% CI, 2.7-4.0). Patients with good preoperative CDVA had the best visual and refractive outcomes; patients with poor preoperative visual acuity had poorer outcomes. CONCLUSIONS: The visual and refractive outcomes of femtosecond laser-assisted cataract surgery were favorable compared with manual phacoemulsification. The outcomes were highly influenced by the preoperative visual acuity, but all preoperative CDVA groups had acceptable outcomes. PMID- 29335100 TI - Risk factors for and management of pupillary intraocular lens capture after intraocular lens transscleral fixation. AB - PURPOSE: To analyze risk factors and management of pupillary intraocular lens (IOL) capture after IOL transscleral fixation. SETTING: Department of Ophthalmology, Seoul National University Hospital, Seoul, South Korea. DESIGN: Retrospective case series. METHODS: A chart review was performed of patients who had transscleral fixation of IOLs between January 1, 2012, and December 31, 2013. Eyes were divided into 2 groups depending on whether the IOL was pupillary captured. Perioperative corrected distance visual acuity (CDVA), intraocular pressure (IOP), spherical equivalent (SE) with refraction, axial length (AL), and total follow-up time were compared between the 2 groups. Ultrasound biomicroscopy images were used to analyze iris morphology and IOL position. RESULTS: The chart review identified 138 patients, 112 patients of whom were included in this analysis. The preoperative and final mean CDVA, IOP, SE, AL, and most iris morphologic parameters were not significantly different between the 2 groups. In the pupillary capture IOL group, the mean age of patients with was younger, the anterior chamber depth (ACD) was narrower, and the rate of reverse pupillary block was higher (P = .003, P = .03, and P = .016, respectively). Intraocular lens decentration in the captured group was significantly larger (P = .002). Multiple logistic regression analysis showed that ACD, reverse pupillary block, and main decentration were associated with pupillary capture of the IOL. CONCLUSIONS: Pupillary capture of an IOL occurred more in eyes with reverse pupillary block and poor IOL positioning. Accordingly, laser iridotomy must be considered for treatment. PMID- 29335101 TI - Outcomes and complication rates of primary resident-performed cataract surgeries at a large tertiary-care county hospital. AB - PURPOSE: To identify the preoperative risk factors, intraoperative events, and postoperative complications increasing the risk for poor visual outcomes in resident-performed cataract surgeries at a tertiary-care county hospital. SETTING: Ben Taub General Hospital, Houston, Texas, USA. DESIGN: Retrospective case series. METHODS: Resident-performed cataract surgeries were analyzed for risk factors, comorbidities, and intraoperative and postoperative complications. The main outcome measures were preoperative and postoperative uncorrected distance visual acuity and corrected distance visual acuity (CDVA), which were correlated with preoperative demographics, intraoperative and postoperative events, and resident training level. The data were subdivided into cases without events and cases with events to determine which complications led to poor visual outcomes. RESULTS: The study analyzed 1290 resident-performed cataract surgeries. The mean visual acuity improved significantly after surgery in all patients (P < .001), with 80.5% of patients without complications and 70.7% with complications attaining a CDVA of 20/40 or better (P < .002). Poor visual outcomes were associated with alpha-antagonist use (P = .043) and pseudoexfoliation syndrome (P = .001). The most common intraoperative complications were vitreous loss (6.7%) and posterior capsule tear (7.0%). The mean postoperative visual acuity did not vary by trainee year, and the rate of dropped nucleus during surgery declined as residents progressed in training (P < .05). All other complication rates were similar between levels of training. CONCLUSION: Despite more complicated cataracts and advanced comorbidities, primary resident-performed cataract surgery in a tertiary-care county hospital system achieved visual outcomes and complication rates similar to those found in other training hospitals. PMID- 29335102 TI - Comparison of 2 laser fragmentation patterns used in femtosecond laser-assisted cataract surgery. AB - PURPOSE: To evaluate the effect of fragmentation patterns (pie pattern versus grid pattern) on effective phacoemulsification time (EPT). SETTING: Department of Ophthalmology, Goethe University, Frankfurt am Main, Germany. DESIGN: Retrospective case series. METHODS: Eyes that had femtosecond laser-assisted cataract surgery were included. One half of the group was treated with the pie pattern. The preoperative lens density was evaluated by Scheimpflug imaging (Pentacam). Then, the eyes treated with the grid pattern were matched to the pie pattern group based on lens density (Scheimpflug imaging). RESULTS: The study comprised 150 eyes (75 in the pie-pattern group and 75 in the grid pattern group). The mean patient age was 66 years +/- 10.67 (SD). The Scheimpflug density zone was 10.05% +/- 1.52%. The mean EPT was 6.63 +/- 5.41 seconds for the pie pattern, significantly higher than the 4.26 +/- 6.99 seconds for the grid pattern (P < .01, Wilcoxon rank-sum test). The number of eyes with EPT = 0 was significantly higher with grid pattern (37 for grid versus 1 for pie, P < .01, chi2 test). Regression analysis showed that the EPT was significantly dependent on lens density for both methods (P = .045 for pie versus P < .01 for grid). In eyes with a lens density higher than 12% (9 eyes in each group), the pie pattern showed significantly lower EPT (P = .02, Wilcoxon rank-sum test). CONCLUSIONS: In cases of low to moderate lens density, grid fragmentation pattern should be used because the EPT was significantly lower and a significantly higher number of eyes did not require further emulsification. However, in eyes with high density (>12%), pie-pattern fragmentation is recommended. PMID- 29335103 TI - New objective lens density quantification method using swept-source optical coherence tomography technology: Comparison with existing methods. AB - PURPOSE: To assess a new objective cataract grading method based on lens densitometry on swept-source optical coherence tomography (SS-OCT) scans provided by the IOLMaster 700. SETTINGS: Rothschild Foundation, Paris, France. DESIGN: Prospective case series. METHODS: All patients consulting for cataract evaluation who provided their consent to participate in the study were included. A history of eye surgery, corneal or retinal disorders, and ocular dryness were exclusion criteria. The average lens densitometry was measured with SS-OCT scans using ImageJ software. The ocular scatter index (OSI) measured with a double-pass aberrometer (Optical Quality Analysis System), the Pentacam nucleus staging (hereafter referred to as nuclear staging) score, and mean nuclear staging were also measured and compared with the mean lens densitometry. RESULTS: One hundred ten eyes (51 with cataract and 59 controls) were included. The average lens densitometry measurements were repeatable (P = .99, analysis of variance). The repeatability limit was 2.50 pixel units. The average lens density was correlated with the OSI (r2 = 0.52, P < .01), nuclear staging score (r2 = 0.75, P < .01), and mean nuclear staging (r2 = 0.41, P < .01). An average lens density greater than 82.9 pixel units was the cutoff threshold for cataract, with a sensitivity of 73.9% and a specificity of 91.2%. CONCLUSIONS: The average lens density measured by SS-OCT was a repeatable and reliable objective cataract grading method. It was correlated with OSI measurement. If the average lens density was greater than 82.9 pixel units and the patient reported visual impairment, cataract surgery might be discussed. PMID- 29335104 TI - Vision-related quality of life and dependency in French keratoconus patients: Impact study. AB - PURPOSE: To assess the quality of life in French keratoconus patients. SETTING: Fifty-seven Keratoconus National Reference Centers across France. DESIGN: Prospective case series. METHODS: Patients completed the National Eye Institute Visual Functioning Questionnaire-25 (NEI VFQ-25) and a French validated questionnaire on disability and dependency from February to June 2012 when they came for an ophthalmic examination at 57 participating centers across France. An ocular examination including refraction, corneal topography, pachymetry, and slitlamp biomicroscopy was performed. The composite or global NEI VFQ-25 score and the proportion of patients who were dependent (defined by the difficulties with activities of daily living) because of keratoconus were the main evaluation criteria in this study. RESULTS: The study comprised 550 keratoconus patients. Women, corrected distance visual acuity worse than 20/40, steep keratometry higher than 52.0 diopters, history of surgery (corneal transplant, intrastromal corneal ring segments, or corneal crosslinking), and more severe keratoconus according to the Amsler-Krumeich classification were associated with an increasingly negative impact on quality of life (overall scores are significantly lower). Moreover, 4.9% of participants reported having changed their jobs because of keratoconus and 7.8% received keratoconus-related disability. Sixty-nine (12.5%) patients reported having difficulties with activities of daily living and are considered dependent. CONCLUSION: Keratoconus was associated with a significant reduction in quality of life but it did not result in social exclusion. PMID- 29335105 TI - Optimization and comparison of a 0.7 mm tip with the 0.9 mm tip on an active fluidics phacoemulsification platform. AB - PURPOSE: To assess the effect of varying levels of torsional power on phacoemulsification efficiency using an active-fluidics phacoemulsification platform with a 0.7 mm Sonata tip. SETTING: John A. Moran Eye Center Laboratories, University of Utah, Salt Lake City, Utah, USA. DESIGN: Experimental study. METHODS: A 0.7 mm tip was used to emulsify 2.0 mm porcine lenses that had been hardened in formalin. The torsional power was varied from 10% to 100% at intervals of 10%, and efficiency and chatter were recorded. A comparison of the 0.7 mm tip with the 0.9 mm Balanced tip was also performed. Using a torsional power setting of 90% and 100%, the 0.7 mm tip and the 0.9 mm tip efficiency times were recorded. RESULTS: The study showed an increase in efficiency as torsional power increased. The relationship was linear and more efficient up to 90% (R2 = .8025, P = .0005). Chatter was only observed at a torsional power setting of 60%. In addition, a head-to-head comparison of the 0.7 mm tip with the 0.9 mm tip showed that both tips were statistically similar in efficiency times, despite the smaller diameter of the 0.7 mm tip. CONCLUSIONS: The optimum torsional power setting with the Centurion platform in conjunction with the 0.7 mm tip was 90%. The efficiency of the 0.7 mm tip and the 0.9 mm tip was statistically similar. PMID- 29335106 TI - Preoperative optimization of ocular surface disease before cataract surgery. AB - An impaired ocular surface adversely affects preoperative planning for cataract surgery, including intraocular lens (IOL) calculations, toric IOL axis and magnitude estimates, keratometry, and topography measurements. It also increases surgical difficulty. We performed a review to evaluate the connection between cataract surgery and dry eye and to determine the best management for these patients. Of the 16 papers included in this review, 6 were randomized controlled trials. Cataract surgery was shown to worsen ocular parameters and aggravate dry eye disease. Physicians should recognize and aggressively treat cataract patients with poor prognostic factors and/or with existing dry-eye disease. Increased incision extent, operation time, irrigation, and microscopic-light exposure time decreased the tear breakup time and mean goblet cell density. Postoperatively, the use of eyedrops was associated with worsening of goblet cell density; hence, these medications should be tapered off when no longer needed. PMID- 29335107 TI - Surgical removal of dystrophic calcification on a silicone intraocular lens in association with asteroid hyalosis. AB - We present a case of successful removal of late calcium deposition on the posterior surface of a silicone intraocular lens (IOL) optic in association with asteroid hyalosis using a surgical technique that included pars plana vitrectomy, a lighted pick, and a modified silicone-tipped cannula. The lighted pick provided the most efficient and complete removal of calcium deposits. Postoperatively, the dystrophic calcification was removed and the IOL optic was clear at 6 months follow-up. The patient's symptoms resolved and uncorrected distance visual acuity returned to 20/20. This method can be considered in patients with dystrophic calcification of a silicone IOL in association with asteroid hyalosis and might avoid the need for IOL exchange and its associated complications and uncertain refractive outcomes. PMID- 29335108 TI - Cataract morphology and risk for glaucoma after cataract surgery in infants with unilateral congenital cataract. PMID- 29335109 TI - Trypan blue-assisted microinvasive glaucoma surgery. PMID- 29335110 TI - December consultation #2. PMID- 29335111 TI - Corneal asymmetry associated with stromal opacity after previous laser in situ keratomileusis: December consultation #1. PMID- 29335112 TI - December consultation #3. PMID- 29335114 TI - December consultation #5. PMID- 29335113 TI - December consultation #6. PMID- 29335115 TI - December consultation #4. PMID- 29335116 TI - Editor's Comment. PMID- 29335117 TI - December consultation #7. PMID- 29335118 TI - Management of subluxated intraocular lens-capsular bag complex. PMID- 29335119 TI - Reply. PMID- 29335120 TI - Differentiating retinal tear and detachment rate by axial length to identify at risk patients having neodymium:YAG capsulotomy. PMID- 29335121 TI - Letter to the Editor: Proceedings from the USDA and National Dairy Council Collaborative Research Planning Meeting Held August 24, 2016. PMID- 29335122 TI - ? PMID- 29335123 TI - ? PMID- 29335124 TI - [The reception, a prerequisite of the encounter: a political question]. AB - The reception of a patient in psychiatry is a stage which consists of more than a single initial contact between a person suffering psychologically and a caregiver. This time can open the way to an encounter, without which a care relationship cannot be established. The reception as a paradigm of psychiatric care questions the concept of this care, at a time when caregivers cannot avoid the question of their political engagement. PMID- 29335125 TI - [The end of the asylum, a change in representations]. AB - Through the major changes which the psychiatric hospital has undergone throughout history, the question is raised of the identity of caregivers, what the psychiatric asylum provides as a response to mental illness, and the function of the asylum as a place for receiving and then caring for patients, within society. These radical changes, which undermine the narcissism of caregivers, have consequences both within the psychiatric hospital and society as a whole. Consequences which question the very notion of care in a post-modern society. PMID- 29335126 TI - [Reception of the patient in psychiatry: overcoming the narcissistic test of the caregiver]. AB - The theme of the encounter is addressed through the question of the reception of the patient. This encounter forces the caregiver to consider his or her own identity faced with the patient, to adjustments which can elude narcissistic doubts by resorting to the standardisation of care. Possible ways for the construction of a joint project are then considered. A 'common illusion' of care, which ensures that the encounter, a prelude to the possibility of care, is achieved. PMID- 29335127 TI - [Accessing the sensitive part of the Being before us]. AB - The acceleration of the standardisation of care and the dominance of the quality approach, since the 1990s, have brought significant changes to nursing practices, the different therapeutic approaches and the 'place' of caregivers with regard to the patient. In this context of modern psychiatry which must comply with all kinds of recommendations, what is the situation of the patient suffering from psychosis, who would previously have been supported over the long term in a psychopathological process? The encounter, envisaged as an opening, is placed at the heart of the therapeutic relationship. PMID- 29335129 TI - [A tale of two encounters]. AB - The moving testimony of a patient shows the impact which a successful encounter can have. Beyond the positive clinical consequences, her rediscovered motivation and pleasure are the essential drivers which have guided her along the pathway of reconstruction. A tale of two encounters which have marked her life course. PMID- 29335128 TI - [Risking the encounter]. AB - In their daily practice, psychiatric caregivers seek an encounter with the patient. This involves trying to understand the patient's suffering, to give meaning and to make the clinical connection. This equates to constructing together. Some care organisations are working to create spaces within units which are suited to receiving patients with an atmosphere favouring the encounter. The story of Baptiste illustrates this approach. Testimony. PMID- 29335130 TI - [Body marking in psychosis]. AB - Patients with psychosis speak of an uneasy relationship with their body. Between feelings of too little and too much, for them it is a matter of trying to suture an image which is not always unified, a body which they are not always sure they have. The attentive clinician will attempt to support the solutions of each psychotic patient to maintain their body, beyond the death drive which pushes them to tear it apart. PMID- 29335132 TI - ? PMID- 29335131 TI - [Call for reinforcements, care to support clinical pertinence]. AB - In their day-to-day practice, psychiatric caregivers are frequently confronted with difficult clinical situations, or crises, which require a rapid and appropriate nursing response. While most of these situations are managed and contained by the professionals present, others will require, depending on their criticality, outside help in order to guarantee greater clinical pertinence and a safe environment. PMID- 29335133 TI - ? PMID- 29335134 TI - ? PMID- 29335135 TI - [Nursing home, caregiving practice and new work organisation]. AB - The recent ageing of the population is resulting in a corresponding increase in the functional dependence of elderly people. Nursing homes hosting this specific population must adapt to this new profile of resident and their arrival at an increasingly older age. Caregiving tasks are becoming more cumbersome affecting the working conditions of caregivers who also face the new management approaches which are imposed. PMID- 29335136 TI - [Life project of residents and institutional approach in nursing homes]. AB - The life project in a nursing home involves all the players concerned: first of all, the resident, then the caregivers, the families and the institution. This unifying tool, organised around the elderly, helps to develop collective competencies, favours the integration of new residents and reassures families. This article presents a nursing home's experience of setting up a life project. PMID- 29335137 TI - [Nutritional status of residents of a nursing home and optimisation of the working time of caregivers]. AB - The lack of time to devote to care is a frequent complaint of nurses and nursing assistants. The results of a study show that an improvement in the nutritional status of nursing home residents could help to improve their quality of life and to optimise the working time of the nursing teams, thanks to the reduction of pressure ulcers, diarrhoea, falls, fractures and infections. PMID- 29335138 TI - [Intrafamily conflicts and family-caregiver tensions in a nursing home]. AB - Conflicts between families and caregivers in a nursing home have multiple causes centred (but not exclusively) on the interest of the resident. Intrafamily conflicts can lead to tensions between families and caregivers. Alzheimer's disease changes the relations with the patient's family members when they are involved in the care, which can lead to a division within the family. This article discusses the sources of difficulties between families and caregivers and ways of managing and above all preventing them. PMID- 29335139 TI - [The analogon, a caregiving resource in geriatric psychiatry]. AB - Few caregivers know what analogons are, yet they use them on occasion, intuitively, for the benefit of their patients. An analogon, an identifying object, enables patients with cognitive disorders to 'decipher' their environment and find meaning in it. Caregivers sometimes use analogons without being aware of the theory behind them. PMID- 29335140 TI - [The sexualisation of the care relationship by the patient in gerontology]. AB - The expression of the sexuality of the ageing patient in the care setting, particularly when it concerns the genital area and involves the caregiver without he or she being aware, constitutes a critical situation for the geriatric teams. A psychodynamic reading of these situations is important for the caregiving teams in order to optimise the somatic treatment and to prevent the risk of an unsuitable reactive treatment. This article presents a clinical case as an example. PMID- 29335141 TI - ? PMID- 29335142 TI - ? PMID- 29335143 TI - ? PMID- 29335144 TI - ? PMID- 29335145 TI - [The place of separations in a child's development]. AB - The issue of separation follows a specific process in the course of a child's development. Putting in place the intersubjective distance and primitive links marks the process of differentiation, falling short of actual separation. Therapeutic separations can be restorative and structuring, under certain conditions. The role of professionals is to ensure that the separations do not simply constitute 'bad encounters'. PMID- 29335146 TI - [Supporting the encounter of mothers suffering from borderline conditions with their baby]. AB - Mothers suffering from borderline conditions are overwhelmed by emotions. Their interactions are tainted with qualitative discontinuities, unpredictable for infants. These high-risk situations must not be trivialised. They are characterised by the importance of providing rapid support to the baby and by the existence of maternal suffering. The infant's basic needs guide the professionals working with these families. PMID- 29335147 TI - [Pre- and postnatal support through haptonomy]. AB - Pre- and postnatal haptonomy constitutes a quality form of support for babies and their parents, from the final months of pregnancy through to the acquisition of walking. It contributes to the development of infants' emotional, sensory and tonic-postural security, enabling them to start to move and engage with confidence in life and in relationships. PMID- 29335148 TI - [Access to language, encounters and separations]. AB - Access to language is part of the extension of a preverbal relationship with one or several partners. This relationship, present from birth, is founded on extremely sophisticated innate competencies. Oral language is both an instrument of encounter with those around us and a means of separating ourselves from others harmlessly, thanks to the symbolic value of words and the process of internalisation which they allow. PMID- 29335149 TI - [Learning to separate together, the separation-individuation group]. AB - The 'separation-individuation' group is offered to children aged between three and five, in outpatient consultations with a paediatric psychiatrist. It was created following the testimonies of early childhood professionals describing the feeling on the part of parents of being torn from their child, during the first year of school. Open and held on a weekly basis, it is combined with a parents' meeting organised simultaneously. The individualised group tool supports the separation-individuation process when this is particularly painful, for the child and the parents. PMID- 29335150 TI - [Birth and separation, questioning caesarean deliveries on maternal request]. AB - Clinical practice and literature highlight the emergence and the growth in the number of caesareans carried out on the request of the mother without medical indication. For some women, a vaginal delivery is an anachronism, while for others it is a necessary passage towards motherhood. A reflection was carried out to illustrate the singularity behind these requests and attempt to overcome the 'for' and 'against' divide. PMID- 29335151 TI - [Tools to overcome anxiety in paediatric surgery]. AB - An association of caregivers carried out several actions to combat children's anxiety in paediatric surgery, including anaesthetic masks to cover in stickers, a tactile application on the operating pathway and a cuddly toy in the recovery room. These tools help children at the moment of being separated from their parents and all along their care pathway. They also encourage caregivers to adjust their practices to improve the care provided to the families. PMID- 29335152 TI - ["I foster babies awaiting adoption."] AB - A mother's decision to give up a child is followed by a two-month period during which she may go back on her decision. During this time, the baby may be cared for in a care home or placed with a specialist foster family. An interview with Christiane Hamel, a retired children's nurse who has chosen to foster children in her home. PMID- 29335153 TI - [The sitting position during peripheral venipunctures in young children, a practice to develop]. AB - The children's nurse has several missions including that of caring for the child in a holistic approach, ensuring their physical safety and psychological security. When performing peripheral venipunctures in young children, caregivers must implement strategies to relieve pain and prevent psychological traumas which may generate stress for subsequent care procedures. In a paediatric unit, their observations and analysis have improved children's experience of this invasive procedure, with a need for less restraint. In this context, the sitting position seems beneficial for the young patient. PMID- 29335154 TI - Local administration of Tiludronic Acid downregulates important mediators involved in periodontal tissue destruction in experimental periodontitis in rats. AB - OBJECTIVE: The purpose of this study was to evaluate whether local administration of TIL could influence the expression of the inflammatory mediators IL-1beta, TNF alpha, MMP-8 and COX-2 in rats with experimental periodontitis (EP). METHODS: Twenty-four adult male rats (Rattus norvegicus, albinus, Wistar) were assigned to groups C, EP, EP-TIL (CControl group, EP-Periodontitis groups). On EP groups, a ligature was placed around maxillary 2nd molars on day 1. On group EP-TIL, 20 MUL of TIL solution (1 mg/kg body weight) was injected into the subperiosteal palatal area adjacent to the maxillary 2nd molar every other day until euthanasia (day 11). Alveolar bone loss was morphometrically analyzed. mRNA expressions of IL 1beta, TNF-alpha, MMP-8 and COX-2 were assessed by qPCR. IL-1beta, TNF-alpha, MMP 8 and COX-2 were immunohistochemically analyzed. Data were analyzed statistically. RESULTS: Group EP-TIL presented reduced alveolar bone loss when compared with group EP (p < 0.05). Group EP-TIL presented decreased mRNA expressions of IL-1beta, TNF-alpha, MMP-8 and COX-2 and reduced immunolabeling of IL-1beta, TNF-alpha and MMP-8 when compared with group EP (p < 0.05). No differences regarding the immunolabeling of COX-2 were found when group EP-TIL was compared with the other groups (p > 0.05). CONCLUSION: Within the limits of this study, it can be concluded that local administration of TIL downregulates important mediators involved in periodontal tissue destruction in ligature induced periodontitis in rats. PMID- 29335155 TI - Investigating the potential impact of dose banding for systemic anti-cancer therapy in the paediatric setting based on pharmacokinetic evidence. AB - BACKGROUND: To make systemic anti-cancer therapy (SACT) preparation more practicable, dose-banding approaches are currently being introduced in many clinical centres. The present study aimed to determine the potential impact of using recently developed National Health Service in England (NHSE) dose-banding tables in a paediatric setting. METHODS: Using pharmacokinetic parameters obtained from 385 drug administrations in 352 children aged from 1 month to 18 years, treated with five drugs (dactinomycin, busulfan, carboplatin, cyclophosphamide and etoposide), individual exposures (area under the plasma drug concentration versus time curve; AUC) obtained using doses rounded according to the published NHSE tables were calculated and compared with those obtained by standard dose calculation methods. RESULTS: For all five drugs, the relative variation between the NHSE dose and the recommended dose (RecDose) (standard individually calculated dose) was between -6% and +5% as expected. In terms of AUC, there was no statistically significant difference in precision between exposures obtained by the RecDose and those obtained with dose banding (absolute value of relative difference 15-34%). CONCLUSION: Based on pharmacokinetic data for these five drugs, the results generated support the implementation of NHSE dose-banding tables. Indeed, inter-patient variability in drug clearance and exposure far outweighs the impact of relatively small drug dose changes associated with dose banding. PMID- 29335157 TI - Thermal and epithermal neutron flux distributions measurement in thermal column of TRR using an experimental-simulation method. AB - For designing an appropriate neutron beam, the determination of neutron flux at any irradiation facility is an important key factor. Due to the importance of determining the thermal and epithermal neutron fluxes in a typical thermal column of a reactor, a simple and accurate technique is introduced in this study. Absolute thermal and epithermal fluxes were measured experimentally at a certain point using the foil activation method by neutron bombardment of bare and cadmium covered Au foils. The relative neutron fluxes were also derived simply by means of Monte Carlo simulation by accurate modelling of the reactor components. Finally, by normalization of the relative distribution flux with regard to information about the absolute neutron flux, the accurate thermal and epithermal neutron distributions were derived, separately. PMID- 29335156 TI - Adapting cervical cancer screening for women vaccinated against human papillomavirus infections: The value of stratifying guidelines. AB - BACKGROUND: Several countries have implemented vaccination against human papillomavirus (HPV) for adolescent girls and must decide whether and how to adapt cervical cancer (CC) screening for these low-risk women. We aimed to identify the optimal screening strategies for women vaccinated against HPV infections and quantify the amount that could be spent to identify vaccination status among women and stratify CC screening guidelines accordingly. METHODS: We used a mathematical model reflecting HPV-induced CC in Norway to project the long term health benefits, resources and costs associated with 74 candidate-screening strategies that varied by screening test, start age and frequency. Strategies were considered separately for women vaccinated with the bivalent/quadrivalent (2/4vHPV) and nonavalent (9vHPV) vaccines. We used a cost-effectiveness framework (i.e. incremental cost-effectiveness ratios and net monetary benefit) and a commonly-cited Norwegian willingness-to-pay threshold of ?75,000 per quality adjusted life-year gained. RESULTS: The most cost-effective screening strategy for 9vHPV- and 2/4vHPV-vaccinated women involved HPV testing once and twice per lifetime, respectively. The value of stratifying guidelines by vaccination status was ?599 (2/4vHPV) and ?725 (9vHPV) per vaccinated woman. Consequently, for the first birth cohort of ~22,000 women who were vaccinated in adolescence in Norway, between ?10.5-13.2 million over their lifetime could be spent on identifying individual vaccination status and stratify screening while remaining cost effective. CONCLUSION: Less intensive strategies are required for CC screening to remain cost-effective in HPV-vaccinated women. Moreover, screening can remain cost-effective even if large investments are made to identify individual vaccination status and stratify screening guidelines accordingly. PMID- 29335158 TI - Arvanil, olvanil, AM 1172 and LY 2183240 (various cannabinoid CB1 receptor agonists) increase the threshold for maximal electroshock-induced seizures in mice. AB - BACKGROUND: Recent evidence reveals therapeutic potential for cannabinoids to reduce seizure frequency, severity and duration. Animal models are useful tools to determine the potential antiseizure or antiepileptic effects of cannabinoids. The objective of this study was evaluation of the effect of arvanil, olvanil, AM 1172 and LY 2183240, the compounds interacted with endocannabinoid and/or endovanilloid systems, on convulsions in the commonly used model of convulsions in mice. METHODS: Arvanil and olvanil were injected intraperitoneally (ip) 30min and AM 1172 and LY 2183240 were administered ip 60min before the maximal electroshock seizure threshold (MEST) test. The criterion for convulsant activity was tonic hindlimb extension. RESULTS: Arvanil, olvanil, AM 1172 and LY 2183240 dose-dependently increased the electroconvulsive threshold in mice. The TID20 (threshold increasing dose 20) values for arvanil, olvanil, AM 1172 and LY 2183240 were 0.9, 2.18, 2.48 and 3.56mgkg-1, respectively, and the TID50 (threshold increasing dose 50) values were 1.88, 6.45, 6.29 and 10.04mgkg-1, respectively. CONCLUSION: This study identified anticonvulsant effects of arvanil, olvanil, AM 1172 and LY 2183240. The order of the magnitude of the anticonvulsant effects of the examined compounds was following: arvanil>olvanil>AM 1172>LY 2183240. PMID- 29335159 TI - Repeated Domperidone treatment modulates pulmonary cytokines in LPS-induced acute lung injury in mice. AB - The dopaminergic antagonist drug Domperidone has immunomodulatory effects. We investigated the effects of repeated Domperidone treatment in a model of Lypopolyssacharide (LPS)-induced acute lung inflammation. Adult C57BL/6J mice were treated with either Vehicle or Domperidone for 5days, and challenged intranasally with LPS in the following day. The behavior of mice was analyzed in the open field and elevated plus-maze test before and 24h after LPS challenge. The bronchoalveolar lavage fluid, blood and lung tissue were collected 24h and 48h after LPS challenge. Domperidone treatment increased LPS-induced tumor necrosis factor (TNF) and interleukin (IL)-6 production in the bronchoalveolar lavage fluid, without altering tissue damage and the number of immune cells in the lungs and circulation. Locomotor and anxiety-like behavior were unchanged after Domperidone and/or LPS treatment. Cytokine data indicate that Domperidone promotes a change in activity of other cell types, likely alveolar epithelial cells, without affecting immune cell migration in the present model. Due to the role of these cytokines in progression of inflammation, Domperidone treatment may exacerbate a subsequent inflammatory injury. PMID- 29335160 TI - Mobile phone use among patients and health workers to enhance primary healthcare: A qualitative study in rural South Africa. AB - Mobile phones have the potential to improve access to healthcare information and services in low-resourced settings. This study investigated the use of mobile phones among patients with chronic diseases, pregnant women, and health workers to enhance primary healthcare in rural South Africa. Qualitative research was undertaken in Mpumalanga in 2014. Semi structured in-depth interviews were conducted with 113 patients and 43 health workers from seven primary healthcare clinics and one district hospital. Data were thematically analysed. We found that some health workers and patients used their own mobile phones for healthcare, bearing the cost themselves. Patients used their mobile phones to remind themselves to take medication or attend their clinic visits, and they appreciated receiving voice call reminders. Some patients and health workers accessed websites and used social media to gather health information, but lacked web search strategies. The use of the websites and social media was intermittent due to lack of financial ability to afford airtime among these patients and health workers. Many did not know what to search for and where to search. Doctors have developed their own informal mobile health solutions in response to their work needs and lack of resources due to their rurality. Physical and social factors influence the usability of mobile phones for healthcare, and this can shape communication patterns such as poor eyesight. The bottom-up use of mobile phones has been evolving to fill the gaps to augment primary care services in South Africa; however, barriers to access remain, such as poor digital infrastructure and low digital literacy. PMID- 29335161 TI - Health equity monitoring for healthcare quality assurance. AB - Population-wide health equity monitoring remains isolated from mainstream healthcare quality assurance. As a result, healthcare organizations remain ill informed about the health equity impacts of their decisions - despite becoming increasingly well-informed about quality of care for the average patient. We present a new and improved analytical approach to integrating health equity into mainstream healthcare quality assurance, illustrate how this approach has been applied in the English National Health Service, and discuss how it could be applied in other countries. We illustrate the approach using a key quality indicator that is widely used to assess how well healthcare is co-ordinated between primary, community and acute settings: emergency inpatient hospital admissions for ambulatory care sensitive chronic conditions ("potentially avoidable emergency admissions", for short). Whole-population data for 2015 on potentially avoidable emergency admissions in England were linked with neighborhood deprivation indices. Inequality within the populations served by 209 clinical commissioning groups (CCGs: care purchasing organizations with mean population 272,000) was compared against two benchmarks - national inequality and inequality within ten similar populations - using neighborhood-level models to simulate the gap in indirectly standardized admissions between most and least deprived neighborhoods. The modelled inequality gap for England was 927 potentially avoidable emergency admissions per 100,000 people, implying 263,894 excess hospitalizations associated with inequality. Against this national benchmark, 17% of CCGs had significantly worse-than-benchmark equity, and 23% significantly better. The corresponding figures were 11% and 12% respectively against the similar populations benchmark. Deprivation-related inequality in potentially avoidable emergency admissions varies substantially between English CCGs serving similar populations, beyond expected statistical variation. Administrative data on inequality in healthcare quality within similar populations served by different healthcare organizations can provide useful information for healthcare quality assurance. PMID- 29335162 TI - The effectiveness of virtual simulation in improving student nurses' knowledge and performance during patient deterioration: A pre and post test design. AB - BACKGROUND: Preparing nursing students to perform competently in complex emergency situations, such as during rapid patient deterioration, is challenging. Students' active engagement in such scenarios cannot be ensured, due to the unexpected nature of such infrequent events. Many students may consequently not experience and integrate the management of patient deterioration into their knowledge and practical competency by the end of their studies, making them unprepared to manage such situations as practicing nurses. This study investigated the effectiveness of virtual simulation in improving performance during rapid patient deterioration. OBJECTIVE: To investigate the effectiveness of virtual simulation in improving student nurses' knowledge and performance during rapid patient deterioration. DESIGN: A pre- and post-test design was used. SETTING: Nursing students at a university in Malta were invited to participate in a virtual simulation program named FIRST2ACTWebTM, using their own computer devices. PARTICIPANTS: A total of 166 (response rate=50%) second and third year diploma and degree nursing students participated in the study. METHODS: The simulation included three scenarios (Cardiac-Shock-Respiratory) portraying deteriorating patients. Performance feedback was provided at the end of each scenario. Students completed pre- and post-scenario knowledge tests and performance during each scenario was recorded automatically on a database. RESULTS: Findings showed a significant improvement in the students' post-scenario knowledge (z=-6.506, p<0.001). Highest mean performance scores were obtained in the last scenario (M=19.7, median: 20.0, s.d. 3.41) indicating a learning effect. Knowledge was not a predictor of students' performance in the scenarios. CONCLUSIONS: This study supports virtual simulation as an effective learning tool for pre-registration nursing students in different programs. Simulation improves both knowledge about and performance during patient deterioration. Virtual simulation of rare events should be a key component of undergraduate nurse education, to prepare students to manage complex situations as practicing nurses. PMID- 29335163 TI - N,N-Diethylmethylamine as lineshape standard for NMR above 130 K. AB - We demonstrate that N,N-Diethylmethylamine (DEMA) is a useful compound for shimming the magnetic field when doing NMR experiments at room temperature and 130 K, near the temperature used in many dynamic nuclear polarization (DNP) experiments. The resonance assigned to the N-methyl carbon in DEMA at 14.7 T and 140 K has a full-width-half-max linewidth of <4 Hz and has a spin-lattice relaxation time of 0.17 +/- 0.03 s. PMID- 29335164 TI - Local T1-T2 distribution measurements in porous media. AB - A novel slice-selective T1-T2 measurement is proposed to measure spatially resolved T1-T2 distributions. An adiabatic inversion pulse is employed for slice selection. The slice-selective pulse is able to select a quasi-rectangular slice, on the order of 1 mm, at an arbitrary position within the sample.The method does not employ conventional selective excitation in which selective excitation is often accomplished by rotation of the longitudinal magnetization in the slice of interest into the transverse plane, but rather a subtraction based on CPMG data acquired with and without adiabatic inversion slice selection. T1 weighting is introduced during recovery from the inversion associated with slice selection. The local T1-T2 distributions measured are of similar quality to bulk T1-T2 measurements. The new method can be employed to characterize oil-water mixtures and other fluids in porous media. The method is beneficial when a coarse spatial distribution of the components is of interest. PMID- 29335165 TI - Dioxins, furans and dioxin-like PCBs in sediment samples and suspended particulate matter from the Scheldt estuary and the North Sea Coast: Comparison of CALUX concentration levels in historical and recent samples. AB - BACKGROUND: The Scheldt estuary is historically a highly polluted river system. While several studies have focused on contamination with metals, pesticides, Polycyclic Aromatic Hydrocarbons (PAHs) and marker PolyChlorinated Biphenyls (PCBs), no data are available concerning past contamination by dioxin-like compounds. OBJECTIVES: The objective of this study is to determine spatial and time trends of PolyChlorinated Dibenzo-p-Dioxins and DibenzoFurans (PCDD/Fs) and dioxin-like PCBs (dl-PCBs) in sediment samples and Suspended Particulate Matter (SPM) from the Scheldt River basin and the North Sea Coast. METHODS: Dioxin-like compounds (PCDD/F and dl-PCB fractions) were measured with the CALUX-bioassay. Bioanalytical EQuivalent concentrations (BEQs) and Total Organic Carbon (TOC) content of historical (1982-1984) and recent (2011-2015) sediment and SPM samples from different locations in the coastal area and the estuary, were evaluated. RESULTS: A decrease in dioxin-like compound concentrations was found at all stations over time, especially for the PCDD/Fs. Dl-PCBs were relatively low in all samples. The Scheldt mouth and the Antwerp harbor yielded the highest BEQs and levels were higher in SPM than in sediment due to the higher organic carbon content in this fraction. CONCLUSIONS: Current PCDD/F and dl-PCB levels in the Belgian Coastal Zone and Scheldt estuary are much lower than their levels 30 years ago and pose a relatively low risk to the aquatic system. This is the result of a strong decrease in emissions, however, large local variabilities in sediment concentration levels can still exist because of local variability in sedimentation, erosion rates and in organic carbon content. PMID- 29335166 TI - Ambient soil cation exchange capacity inversely associates with infectious and parasitic disease risk in regional Australia. AB - Human contact with soil may be important for building and maintaining normal healthy immune defence mechanisms, however this idea remains untested at the population-level. In this continent-wide, cross-sectional study we examine the possible public health benefit of ambient exposures to soil of high cation exchange capacity (CEC), a surrogate for potential immunomodulatory soil microbial diversity. We compare distributions of normalized mean 2011/12-2012/13 age-standardized public hospital admission rates (cumulative incidence) for infectious and parasitic diseases across regional Australia (representing an average of 29,516 patients/year in 228 local government areas), within tertiles of socioeconomic status and soil exposure. To test the significance of soil CEC, we use probabilistic individual-level environmental exposure data (with or without soil), and group-level variables, in robust non-parametric multilevel modelling to predict disease rates in unseen groups. Our results show that in socioeconomically-deprived areas with high CEC soils, rates of infectious and parasitic disease are significantly lower than areas with low CEC soils. Also, health inequality (relative risk) due to socioeconomic status is significantly lower in areas with high CEC soils compared to low CEC soils (Delta relative risk = 0.47; 95% CI: 0.13, 0.82). Including soil exposure when modelling rates of infectious and parasitic disease significantly improves prediction performance, explaining an additional 7.5% (Delta r2 = 0.075; 95% CI: 0.05, 0.10) of variation in disease risk, in local government areas that were not used for model building. Our findings suggest that exposure to high CEC soils (typically high soil biodiversity) associates with reduced risk of infectious and parasitic diseases, particularly in lower socioeconomic areas. PMID- 29335167 TI - Fate and hazard of the electrochemical oxidation of triclosan. Evaluation of polychlorodibenzo-p-dioxins and polychlorodibenzofurans (PCDD/Fs) formation. AB - Triclosan (TCS) is widely used as antiseptic or preservative in many personal care products (PCPs), such as cosmetics, hand wash, toothpaste and deodorant soaps, among others. It is characterized by acute toxicity, resistance to biodegradation, environmental persistence and relatively high lipophilicity. In order to protect the environment and natural resources from the negative effects of the discharge of polluted wastewater with TCS, the application of efficient remediation technologies able to degrade the pollutant to harmless levels becomes crucial. Electrochemical oxidation, among all advanced oxidation processes (AOPs), has been reported as very effective in the complete degradation of a number of persistent pollutants; therefore, its performance using boron-doped diamond (BDD) anodes, and response to operation variables, has been studied in this work. As expected, complete degradation of TCS was achieved in all the studied conditions; however, going a step further and knowing that TCS is a precursor of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), their quantitative presence in the oxidation media has been assessed. Results showed the dominance of dichlorinated (DCDD) and trichlorinated (TrCDD/Fs) in the homologue profile of total PCDD/Fs, reaching values up to 1.48 * 105 pg L-1 in samples with initial concentration of TCS of 100 mg L-1 and NaCl as electrolyte. Under these conditions, the International Toxicity Equivalency Factor (I-TEF) achieved values up to 2.76 * 102 pg L-1. Nevertheless, the presence of copper in the oxidation medium tends to reduce I-TEF values. Finally, considering the information reported in literature, a mechanism describing the formation of low chlorinated PCDD/Fs from TCS oxidation reactions is proposed. PMID- 29335168 TI - WRF modeling of PM2.5 remediation by SALSCS and its clean air flow over Beijing terrain. AB - Atmospheric simulations were carried out over the terrain of entire Beijing, China, to investigate the effectiveness of an air-pollution cleaning system named Solar-Assisted Large-Scale Cleaning System (SALSCS) for PM2.5 mitigation by using the Weather Research and Forecasting (WRF) model. SALSCS was proposed to utilize solar energy to generate airflow therefrom the airborne particulate pollution of atmosphere was separated by filtration elements. Our model used a derived tendency term in the potential temperature equation to simulate the buoyancy effect of SALSCS created with solar radiation on its nearby atmosphere. PM2.5 pollutant and SALSCS clean air were simulated in the model domain by passive tracer scalars. Simulation conditions with two system flow rates of 2.64 * 105 m3/s and 3.80 * 105 m3/s were tested for seven air pollution episodes of Beijing during the winters of 2015-2017. The numerical results showed that with eight SALSCSs installed along the 6th Ring Road of the city, 11.2% and 14.6% of PM2.5 concentrations were reduced under the two flow-rate simulation conditions, respectively. PMID- 29335169 TI - Seasonal variations in fine particle composition from Beijing prompt oxidative stress response in mouse lung and liver. AB - Exposure to air pollution can induce oxidative stress, inflammation and adverse health effects. To understand how seasonal and chemical variations drive health impacts, we investigated indications for oxidative stress and inflammation in mice exposed to water and organic extracts from urban fine particles/PM2.5 (particles with aerodynamic diameter <= 2.5 MUm) collected in Beijing, China. Higher levels of pollution components were detected in heating season (HS, winter and part of spring) PM2.5 than in the non-heating season (NHS, summer and part of spring and autumn) PM2.5. HS samples were high in metals for the water extraction and high in polycyclic aromatic hydrocarbons (PAHs) for the organic extraction compared to their controls. An increased inflammatory response was detected in the lung and liver following exposure to the organic extracts compared to the water extracts, and mostly in the HS PM2.5. While reduced antioxidant response was observed in the lung, it was activated in the liver, again, more in the HS extracts. Nrf2 transcription factor, a master regulator of stress response that controls the basal oxidative capacity and induces the expression of antioxidant response, and its related genes were induced. In the liver, elevated levels of lipid peroxidation adducts were measured, correlated with histologic analysis that revealed morphologic features of cell damage and proliferation, indicating oxidative and toxic damage. In addition, expression of genes related to detoxification of PAHs was observed. Altogether, the study suggests that the acute effects of PM2.5 can vary seasonally with stronger health effects in the HS than in the NHS in Beijing, China and that some secondary organs may be susceptible for the exposure damage. Specifically, the liver is a potential organ influenced by exposure to organic components such as PAHs from coal or biomass burning and heating. PMID- 29335170 TI - Risk factors associated with rural water supply failure: A 30-year retrospective study of handpumps on the south coast of Kenya. AB - An improved understanding of failure risks for water supplies in rural sub Saharan Africa will be critical to achieving the global goal of safe water for all by 2030. In the absence of longitudinal biophysical and operational data, investigations into water point failure risk factors have to date been limited to cross-sectional research designs. This retrospective cohort study applies survival analysis to identify factors that predict failure risks for handpumps installed on boreholes along the south coast of Kenya from the 1980s. The analysis is based on a unique dataset linking attributes of >300 water points at the time of installation with their operational lifespan over the following decades. Cox proportional hazards and accelerated failure time models suggest water point failure risks are higher and lifespans are shorter when water supplied is more saline, static water level is deeper, and groundwater is pumped from an unconsolidated sand aquifer. The risk of failure also appears to grow as distance to spare part suppliers increases. To bolster the sustainability of rural water services and ensure no community is left behind, post-construction support mechanisms will need to mitigate heterogeneous environmental and geographical challenges. Further studies are needed to better understand the causal pathways that underlie these risk factors in order to inform policies and practices that ensure water services are sustained even where unfavourable conditions prevail. PMID- 29335172 TI - Preparation of amidoxime-functionalized mesoporous silica nanospheres (ami-MSN) from coal fly ash for the removal of U(VI). AB - It is usually difficult to control the microstructure of mesoporous silica materials using coal fly ash as raw materials. In this study, amidoxime functionalized mesoporous silica nanospheres (ami-MSN) were prepared from coal fly ash using a novel interfacial cohydrolysis-condensation method in an alkane aqueous system. Characterizations suggested a regular microstructure, high specific surface area (676 m2/g) as well as stable and uniformly distributed amidoxime groups in the ami-MSN framework. Furthermore, ami-MSN displays a high U(VI) removal capacity in sorption experiments (98.9% removal efficiency of 50 ppm U(VI) at a dosage of 600 mg/L). The sorption showed significant pH dependence. Introducing various cations and anions showed differing effects on sorption, which can be attributed to differing complexation abilities of ions/ami MSN/U(VI). The sorption mechanism was also studied. In pursuit of the strategy of "treating wastewater with materials derived from waste," this work suggests that ami-MSN can be an effective and low-cost sorbent for U(VI) removal. PMID- 29335171 TI - Effect of hydrogen peroxide on Microcystic aeruginosa: Role of cytochromes P450. AB - Cyanobacterial bloom has been rising as a worldwide issue owing to its adverse effects to water quality and ecological health. To solve this problem, hydrogen peroxide (H2O2) has been considered as a potential algaecide because no by products are generated after treatment and because it kills cyanobacteria selectively. In addition, cytochromes P450 (CYPs) was reported to be related with H2O2, but the roles of CYPs in the regulation of H2O2 in cyanobacteria have yet to be investigated. In this study, the CYPs suicide inhibitor 1 aminobenzotriazole (ABT) was added to the representative cyanobacteria Microcystis aeruginosa (M. aeruginosa) exposed to H2O2. The results showed that CYPs mediates the effects of H2O2 on M. aeruginosa. To be exact, the addition of ABT induced greater inhibitory effects on the growth and higher reactive oxygen species levels in M. aeruginosa comparing to those treated with H2O2 alone. At the same time, photosynthetic parameters significantly decreased, and the content of extracellular microcystins (MCs) increased but the total MCs decreased due to the combined effect of H2O2 and ABT. ABT also intensified the aggregation of Fe, which might explain the effects on photosynthesis and synthesis of MCs. Furthermore, the transcriptional levels of MCs-synthesis genes (mcyA and mcyD) decreased but MCs-release gene (mcyH) increased, and photosynthetic genes (psaB, psbD1 and rbcL) decreased, which confirmed the effects on the MC production/release and electron transport of photosynthesis, respectively. In summary, this study illuminated the mediation role of CYPs in the adverse effects on M. aeruginosa induced by H2O2, thus providing new theoretical basis for the explanation of H2O2 as potential algaecide. PMID- 29335173 TI - Application of Fe3O4@MIL-100 (Fe) core-shell magnetic microspheres for evaluating the sorption of organophosphate esters to dissolved organic matter (DOM). AB - Organophosphate esters (OPEs) are widely used as flame retardants and plasticizers in many products and materials. Because of the potential biologic toxicity on human beings, OPEs are regarded as a class of emerging pollutants. Dissolved organic matters (DOM) have significant effects on the bioavailability and toxicity of the pollutants in the environment. Negligible-depletion solid phase microextraction (nd-SPME) is an efficient way for measuring the freely dissolved pollutants but suffers from long equilibrium time. Metal-organic frameworks (MOFs) are a class of porous crystalline materials with unique properties such as high pore volume, regular porosity, and tunable pore size, being widely used for the extraction of various organic compounds. Here we developed a novel method for quick determination the sorption coefficients of OPEs to DOM in aquatic phase using Fe3O4@MIL-100 (Fe) core-shell magnetic microspheres. The mesoporous structures of the as-synthesized microspheres hindered the extraction of OPEs which associated with humic acid due to the volume exclusion effect. However, the freely dissolved OPEs can access into the mesoporous and then were extracted by MIL-100 (Fe). Due to the small pore size (4.81 nm), large surface area (141 m2 g-1), high pore volume (0.17 g3 g-1), and ultra-thin MOFs layers, Fe3O4@MIL-100 (Fe) core-shell magnetic microspheres have large contact area for the analytes in aqueous phase and therefore the diffusion distance was largely shortened. Besides, the microspheres can be collected conveniently after the extraction process by applying a magnetic field. Compared to the nd-SPME method with 35 h equilibration time (t90%), the proposed method for these studied OPEs only need 24 min to achieve equilibration. The sorption coefficients (logKDOC) of the OPEs to humic acid were ranged from 3.84-5.28, which were highly consistent with the results by using polyacrylate-coated fiber and polydimethylsiloxane-coated fiber with nd-SPME. PMID- 29335174 TI - Testing association between soil bacterial diversity and soil carbon storage on the Loess Plateau. AB - Bacteria are widely distributed and play an important role in soil carbon (C) cycling. The impact of soil bacterial diversity on soil C storage has been well established, yet little is known about the underlying mechanisms and the interactions among them. Here, we examined the association between soil bacterial diversity and soil C storage in relation to vegetation restoration on the Loess Plateau. The dominant phyla among land use types (artificial forest, Af; natural shrubland, Ns; artificial grassland, Ag; natural grassland, Ng; slope cropland, Sc) were Acidobacteria, Actinobacteria, Alphaproteobacteria, and Betaproteobacteria, which transited from Acidobacteria-dominant to Actinobacteria dominant community due to vegetation restoration. Soil C storage and the Shannon diversity index of soil bacterial community (HBacteria) showed the order Ns > Ng > Af > Ag > Sc, whereas no significant difference was found in Good's coverage (p > .05). Further, a strong relationship was observed between the relative abundance of dominant bacterial groups and soil C storage (p < .05). Additionally, soil bacterial diversity was closely related to soil C storage based on the structural equation model (SEM) and generalized additive models (GAMs). Specifically, soil C storage had the largest deterministic effects, explaining >70% of the variation and suggesting a strong association between soil C storage and soil bacterial diversity. Overall, we propose that further studies are necessary with a focus on the soil bacterial groups with specific functions in relation to soil C storage on the Loess Plateau. PMID- 29335175 TI - An assessment of the Ca weathering sources to surface waters on the Precambrian Shield in central Ontario. AB - There is increasing concern over the negative ecological impacts caused by falling calcium (Ca) concentrations in lakes, particularly in central Ontario, Canada. Forecasting regional changes in lake Ca concentrations relies on accurate estimates of mineral weathering rates that are not widely available. In this study, bulk atmospheric deposition, surface water and soil chemistry along with 87Sr/86Sr isotope measurements were used to provide regional insight into weathering controls on Ca concentrations in lakes. Regionally, Ca concentrations in 90% of 129 lakes sampled in central Ontario were <0.1 mmol L-1 and the Ca/Sr ratio in lakes increased and the K/Sr ratio decreased with increasing Sr concentration, which is indicative of greater Ca sources from calcite or apatite in the higher Ca lakes. Significant relationships between 87Sr/86Sr ratios and Ca/Sr rations in dilute acid (0.1 M HCl) soil extracts are also indicative of the presence of trace amounts of calcite or apatite in surficial soils. Within the low (<0.7 mmol L-1) Ca lakes, defined in this study that are considered most at risk from falling Ca concentrations, 87Sr/86Sr ratios fell within the range observed in weak acid soil extracts and were also significantly related to Ca/Na and K/Sr ratios in surface waters. There were large inconsistencies however, between Ca/Na ratios and Ca/Sr in surface waters and soil acid extracts that suggest differences in 87Sr/86Sr ratios in surface waters of the low Ca lakes do not simply reflect differences in Ca derived from non-silicate minerals in surficial soils and that that Ca sources from deeper soil or bedrock are also important contributors to surface water Ca in these low Ca lakes. PMID- 29335176 TI - Arsenic characteristics in the terrestrial environment in the vicinity of the Shimen realgar mine, China. AB - In this study, multiple types of samples, including soils, plants, litter and soil invertebrates, were collected from a former arsenic (As) mine in China. The total As concentrations in the soils, earthworms, litter and the aboveground portions of grass from the contaminated area followed the decreasing order of 83 2224 mg/kg, 31-430 mg/kg, 1-62 mg/kg and 2-23 mg/kg, respectively. X-ray absorption near-edge structure (XANES) analysis revealed that the predominant form of As in the soils was arsenate (As(V)), while no arsenite (As(III)) was detected. In the grass and litter of the native plant community, inorganic As species (As(V) and As(III)) were the main species, while minor amounts of DMA, MMA, AsC, and an unknown As species were also detected in the extracts analyzed with high-performance liquid chromatography inductively coupled plasma mass spectrometry (HPLC-ICP-MS). The As speciation and As concentrations varied with the plant species, and very high As levels (197-584 mg/kg) and proportions of inorganic As (>99%) were found in two As-hyperaccumulating ferns, Pteris vittata and Pteris cretica. The major As species extracted from earthworms were inorganic, with proportions of 51-53% As(III) and 38-48% As(V). AsB was the only organic species present in the earthworm samples, although at low proportions (<8.99%). The internal bioconversion of other As species is hypothesized to contribute greatly to the formation and accumulation of AsB in earthworms, although the direct external absorption of organic As from soils might be another source. This study sheds light on the potential sources of complex organoarsenicals, such as AsB, in terrestrial organisms. PMID- 29335177 TI - Study of the evolution of gravel beaches nourished with sand. AB - Coastal erosion is a worldwide problem, so accurate knowledge of the factors involved in the shoreline evolution is of great importance. This study analysed three gravel beaches that were nourished with sand from the same source. However, the evolution of their shoreline was different in each case. For its analysis, different factors were studied such as the shoreline and cross-shore profile evolution, the maritime climate, sedimentology and mineralogy. From the results, it should be noted that Centro beach is the most stable with a loss of surface after the first regeneration of 12.8%, while Carrer de mar is the most instable with a loss of 20.9%. The Posidonia oceanica meadow is one of the factors that make Centro beach the most stable despite being the one that receives the most wave energy. Another factor is its mineralogy and more specifically the composition of the particles that form the sample. Thus, it is observed how the cracking or the formation of particles by different minerals with a fragile union, are factors that make the beaches behave differently against erosion. For this reason, it is concluded that in order for the shoreline to be as stable as possible over time, a previous study of the sediment to be used for nourishment is necessary, as well as its possible effect on the ecosystem, since the future shoreline evolution will depend on it. PMID- 29335178 TI - Bone lead levels in an environmentally exposed elderly population in shanghai, China. AB - This study looked at measurements of lead (Pb) in a pilot population of environmentally exposed elderly residents of Shanghai, China and presented the first set of bone Pb data on an elderly Chinese population. We found that with environmental exposures in this population using K-shell x-ray fluorescence (KXRF) bone Pb measurements 40% of the individuals had bone Pb levels above the nominal detection limit with an average bone lead level of 4.9 +/- 3.6 MUg/g. This bone lead level is lower than comparable values from previous studies of community dwelling adults in US cities. This population had a slightly higher geometric mean blood Pb of 2.6 MUg/dL than the adult US population. The main conclusion of this data is that in Shanghai there is environmental exposure to Pb, measured through blood and bone, which should be further investigated to assess the health impact of this exposure. PMID- 29335179 TI - Chronic nitrogen addition induces a cascade of plant community responses with both seasonal and progressive dynamics. AB - Short-lived herbaceous plants provide a useful model to rapidly reveal how multiple generations of plants in natural plant communities of sensitive desert ecosystems will be affected by N deposition. We monitored dynamic responses of community structure, richness, evenness, density and biomass of herbaceous plants to experimental N addition (2:1 NH4+:NO3- added at 0, 0.5, 1, 3, 6 and 24gNm-2a 1) in three seasons in each of three years in the Gurbantunggut desert, a typical temperate desert of central Asia. We found clear rate-dependent and season dependent effects of N deposition on each of these variables, in most cases becoming more obvious through time. N addition reduced plant richness, leading to a loss of about half of the species after three generations in the highest N application level. Evenness and density were relatively insensitive to all but the greatest levels of N addition for two generations, but negative effects emerged in the third generation. Biomass, both above and below ground, was non linearly affected by N deposition. Low and intermediate levels of N deposition often increased biomass, whereas the highest level suppressed biomass. Stimulatory effects of intermediate N addition disappeared in the third generation. All of these responses are strongly interrelated in a cascade of changes. Notably, changes in biomass due to N deposition were mediated by declines in richness and evenness, and other changes in community structure, rather than solely being the direct outcome of release from limitation. The interrelationships between N deposition and the different plant community attributes change not only seasonally, but also progressively change through time. These temporal changes appear to be largely independent of interannual or seasonal climatic conditions. PMID- 29335180 TI - Synthesis of nanometer-sized fayalite and magnesium-iron(II) mixture olivines. AB - Olivines are divalent orthosilicates with important geologic, biological, and industrial significance and are typically comprised of mixtures of Mg2+ and Fe2+ ranging from forsterite (Mg2SiO4) to fayalite (Fe2SiO4). Investigating the role of Fe(II) in olivine reactivity requires the ability to synthesize olivines that are nanometer-sized, have different percentages of Mg2+ and Fe2+, and have good bulk and surface purity. This article demonstrates a new method for synthesizing nanosized fayalite and Mg-Fe mixture olivines.First, carbonaceous precursors are generated from sucrose, PVA, colloidal silica, Mg2+, and Fe3+. Second, these precursors are calcined in air to burn carbon and create mixtures of Fe(III) oxides, forsterite, and SiO2. Finally, calcination in reducing CO-CO2 gas buffer leads to Fe(II)-rich olivines. XRD, Mossbauer, and IR analyses verify good bulk purity and composition. XPS indicates that surface iron is in its reduced Fe(II) form, and surface Si is consistent with olivine. SEM shows particle sizes predominately between 50 and 450 nm, and BET surface areas are 2.8-4.2 m2/g. STEM HAADF analysis demonstrates even distributions of Mg and Fe among the available M1 and M2 sites of the olivine crystals. These nanosized Fe(II)-rich olivines are suitable for laboratory studies with in situ probes that require mineral samples with high reactivity at short timescales. PMID- 29335181 TI - Enhancing the photovoltaic performance of bulk heterojunction polymer solar cells by adding Rhodamine B laser dye as co-sensitizer. AB - Ternary blend (TB) strategy has been considered as an effective method to enhance the photovoltaic performance of bulk heterojunction (BHJ) polymer solar cells (PSCs). Here, we report on TB-based PSCs containing two donor materials; poly-3 hexylthiophene (P3HT) and Rhodamine B (RhB) laser organic dye, and [6,6]-phenyl C61 butyric acid methyl ester (PC61BM) as an acceptor. The influence of RhB weight percentage and injection volume was extensively studied. To gain insight into the influences of RhB on the photovoltaic performance of PSCs, physicochemical and optical properties of TBs were compared with those of BHJ binary blend as a standard. RhB broadened the light absorption properties of the active layer and played a bridging role between P3HT and PC61BM. The PCE and short-circuit current density (Jsc) of the optimized TB-based PSCs comprising of 0.5 wt% RhB reached 5% and 12.12 mA/cm2, respectively. Compared to BHJ standard cell, the PCE and the generated current was improved by two orders of magnitude due to higher photon harvest of the active layer, cascade energy level structure of TB components and a considerable decrease in the charge carrier recombination. The results suggest that RhB can be considered as an effective material for application in PSCs to attain high photovoltaic performance. PMID- 29335182 TI - Microstructures and performances of pegylated polysulfone membranes from an in situ synthesized solution via vapor induced phase separation approach. AB - In situ pegylated (PEGylated) microporous membranes have been extensively reported using poly(ethylene glycol) (PEG)-based polymers as blending additives. Alternatively, free standing PEGylated polysulfone (PSf) membranes with excellent hydrophilicity and antifouling ability were directly fabricated from polysulfone/poly(ethylene glycol) methyl ether methacrylate (PSf/PEGMA) solutions after in situ cross-linking polymerization without any treatment via vapor induced phase separation (VIPS) process for the first time. The microstructures and performances of the resulting membranes shifted regularly by adjusting exposure time of the liquid film in humid air. With increasing exposure time, plenty of worm-like networks formed and distributed on membrane surfaces, meanwhile cross-sectional morphology changed from asymmetric finger-like microporous structure to symmetric cellular-like structure, resulting in better mechanical stability. As the exposure time raised from 0 to 5 min, the surface coverage of carboxyl groups increased from ~1.1 to 4.0 mol%, leading to the decrease in water contact angle from ~63 to 27 degrees and the increase in water flux from ~110 to 512 L m-2 h-1. In addition, at prolonged exposure time, increasing hydrophilic PEG chains migrated to membrane surfaced and repelled the adsorption and deposition of protein, resulting in better antifouling ability. The findings of this study offer a facile and high efficient strategy for flexible design and fabrication of the in situ PEGylated membranes with desirable structures and performances in large scale. PMID- 29335183 TI - Microwave-assisted synthesis of palladium nanoparticles intercalated nitrogen doped reduced graphene oxide and their electrocatalytic activity for direct ethanol fuel cells. AB - Palladium nanoparticles decorated reduced graphene oxide (Pd-rGO) and palladium nanoparticles intercalated inside nitrogen doped reduced graphene oxide (Pd-NrGO) hybrids have been synthesized by applying a very simple, fast and economic route using microwave-assisted in-situ reduction and exfoliation method. The Pd-NrGO hybrids materials show good activity as catalyst for ethanol electro oxidation for direct ethanol fuel cells (DEFCs) as compared to Pd-rGO hybrids. The enhanced direct ethanol fuel cell can serve as alternative to fossil fuels because it is renewable and environmentally-friendly with a high energy conversion efficiency and low pollutant emission. As proof of concept, the electrocatalytic activity of Pd-NrGO hybrid material was accessed by cyclic voltammetry in presence of ethanol to evaluate its applicability in direct-ethanol fuel cells (DEFCs). The Pd-NrGO catalyst presented higher electro active surface area (~6.3 m2 g-1) for ethanol electro-oxidation when compared to Pd-rGO hybrids (~3.7 m2 g-1). Despite the smaller catalytic activity of Pd-NrGO, which was attributed to the lower exfoliation rate of this material in relation to the Pd-rGO, Pd-NrGO showed to be very promising and its catalytic activity can be further improved by tuning the synthesis parameters to increase the exfoliation rate. PMID- 29335184 TI - Trimellitated sugarcane bagasse: A versatile adsorbent for removal of cationic dyes from aqueous solution. Part I: Batch adsorption in a monocomponent system. AB - Trimellitated-sugarcane bagasse (STA) was used as an environmentally friendly adsorbent for removal of the basic dyes auramine-O (AO) and safranin-T (ST) from aqueous solutions at pH 4.5 and 7.0. Dye adsorption was evaluated as a function of STA dosage, agitation speed, solution pH, contact time, and initial dye concentration. Pseudo-first- and pseudo-second-order, Elovich, intraparticle diffusion, and Boyd models were used to model adsorption kinetics. Langmuir, Dubinin-Radushkevich, Redlich-Peterson, Sips, Hill-de Boer, and Fowler-Guggenheim models were used to model adsorption isotherms, while a Scatchard plot was used to evaluate the existence of different adsorption sites. Maximum adsorption capacities for removal of AO and ST were 1.005 and 0.638 mmol g-1 at pH 4.5, and 1.734 and 1.230 mmol g-1 at pH 7.0, respectively. Adsorption enthalpy changes obtained by isothermal titration calorimetry (ITC) ranged from -21.07 +/- 0.25 to -7.19 +/- 0.05 kJ mol-1, indicating that both dyes interacted with STA by physisorption. Dye desorption efficiencies ranged from 41 to 51%, and re adsorption efficiencies ranged from 66 to 87%, showing that STA can be reused in new adsorption cycles. ITC data combined with isotherm studies allowed clarification of adsorption interactions. PMID- 29335185 TI - One step electrochemical route to the fabrication of highly ordered array of cylindrical nano porous structure and its electrocatalytic performance toward efficient hydrogen evolution. AB - An efficient and non-precious metal catalyst is a key factor for hydrogen evolution reaction (HER). Here we report that the fabrication of highly ordered porous arrays of Cu-Zn-Ni alloy has been carried out in a one-step electrochemical route at a constant apparent current density of -3 A.cm-2. The optimum film composition and reactivity of the electrodes for catalytic hydrogen evolution reaction were analyzed by using different current densities, deposition time and bath concentration. For this purpose, onset potentials in linear sweep voltammograms (LSV) were compared. The structure and morphology of nanoporous Cu Zn-Ni and Cu-Zn alloy were characterized by SEM and energy dispersive X-ray (EDS) analysis. The experimental results on the behavior of electrocatalytic activity of prepared alloys showed that the addition of nickel to the alloys improves of the electrocatalytic performance of the electrodes toward HER. In addition, enhancement of electrochemical activity toward hydrogen evolution can be attributed to the large electrochemical active surface area and porous structure of Cu-Zn-Ni alloy. In order to improvement of reaction kinetics, Tafel plots were derived from LSV voltammograms, and the exchange current densities for HER on synthesized electrodes (Cu-Zn and Cu-Zn-Ni alloys) were calculated about 3.2 * 10 5 and 2.1 * 10-3 mA.cm-2, respectively. PMID- 29335186 TI - Rheological and calorimetric study of alkyltrimethylammonium bromide-sodium salicylate wormlike micelles in aqueous binary systems. AB - HYPOTHESIS: It is known that additives like glycerol and sucrose lead to the swelling of aqueous bilayer Lalpha phases. The swelling of the Lalpha phases can be explained by the increase of the refractive index of the mixed solvent, which lowers the van der Waals attraction between the bilayers. Afterwards, the undulation forces between the bilayers can push them apart. This hypothesis was previously extended to wormlike micelles (WLM) of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal). These types of self-assembly structures have viscoelastic properties, and the zero shear viscosity of these solutions is dependent on the molar ratio NaSal/CTAB, R. At R = 0.6, R = 1.0 and R ~ 2.6 the viscosity goes, respectively, through a maximum, a minimum and another maximum. These viscosities can be explained by differences in relaxation mechanisms predominant in each region. Similarly to what is observed to bilayer Lalpha phases, the additives would change the interaction between the WLM, affecting the relaxation processes of each region, altering the profile from two maxima and one minimum to a single maximum in viscosity. In the present manuscript, it is investigated whether it is only the refractive index, other solvent properties, or a combination of several factors that induce these changes in WLM. For this, several additives, forming binary mixtures with water, were studied, through rheology of CTAB/NaSal and calorimetry of tetradecyltrimethylammonium bromide (TTAB)/NaSal. EXPERIMENTS: Herein, we present the zero-shear viscosity diagrams of NaSal and CTAB with glycerol, sucrose, dimethyl sulfoxide, 1,3-butanediol and urea combined with water. Additionally, isothermal titration calorimetry was used to obtain the variations of enthalpy for formation of WLM of TTAB and NaSal in mixtures of water and such additives. FINDINGS: Based on our data, only the refractive index match is not enough to explain the rheological and calorimetric behaviors of the WLM. For instance, sucrose has little effect on the micelles, even at the same refractive index match conditions. Additional characteristics, such as dielectric constant, the cohesivity of the solvent (here symbolized by the Gordon parameter), and the interactions of the additive with the micelles, have to be considered to better describe the results. PMID- 29335187 TI - Novel low-fouling membranes from lab to pilot application in textile wastewater treatment. AB - A novel antifouling coating based on the polymerization of a polymerisable bicontinuous microemulsion (PBM) was developed and applied for commercially available membranes for textile wastewater treatment. PBM coating was produced by polymerizing, on a polyethersulfone (PES) membrane, a bicontinuous microemulsion, realized by finely tuning its properties in terms of chemical composition and polymerization temperature. In particular, the PBM was prepared by using, as the surfactant component, inexpensive and commercially available dodecyltrimethylammonium bromide (DTAB). The coating exhibited a more hydrophilic and a smoother surface in comparison to uncoated PES surface, making the produced PBM membranes more resistant and less prone to be affected by fouling. The anti fouling potential of PBM membranes was assessed by using humic acid (HA) as a model foulant, evaluating the water permeability decrease as an indicator of the fouling propensity of the membranes. PBM membrane performances in terms of dye rejection, when applied for model textile wastewater treatment, were also evaluated and compared to PES commercial ones. The PBM membranes were finally successfully scaled-up (total membrane area 0.33 m2) and applied in a pilot membrane bioreactor (MBR) unit for the treatment of real textile wastewater. PMID- 29335189 TI - Biofuel production and phycoremediation by Chlorella sp. ISTLA1 isolated from landfill site. AB - The present study aims to investigate the biofuel production ability and potential of heavy metal remediation of Chlorella sp. ISTLA1 isolated from a landfill site. The strain was cultured in Bold's Basal medium at different concentration of NaHCO3 and pH. Response surface methodology was employed for the optimization of nutrient sources for higher lipid production. Under the optimized conditions, the yield of lipid and biomass was 365.42 and 833.14 mg L-1 respectively. GC-MS analysis of lipid indicated the presence of C8 to C31 organic compounds consisting mainly of palmitic acid (C16:0), stearic acid (C18:0) and oleic acid (C18:1). Additionally, remediation of heavy metals like Zn, Cu, Mn and Fe from waste water was observed by AAS and EDX. The removal efficiency was 82.6% for Zn, 56.5% for Cu, 79.8% for Mn and 40% for Fe. The study revealed simultaneous biodiesel production and waste water treatment by Chlorella sp. ISTLA1. PMID- 29335188 TI - Electrophoretic deposition of single-source precursors as a general approach for the formation of hybrid nanorod array heterostructures. AB - HYPOTHESIS: Subjecting colloids to electric fields often results in (electrophoretic) deposition on conductive substrates. Dispersing a single-source precursor (SSP) of choice in an appropriate solvent, should allow its deposition on different substrates. The SSP-solvent interaction might play a role in the deposition (e.g., direction, rate, coverage). After thermal decomposition, the SSPs convert to the designed material, thus allowing formation of thin films or hybrid nanostructures. EXPERIMENTS: Electrophoretic deposition (EPD) was applied on two representative SSPs in different solvents. These SSPs were deposited onto substrates covered with vertically-aligned ZnO nanorod (NR) arrays. After thermal decomposition, hybrid nanostructures were obtained and their morphology and interfaces were characterized by electron microscopy, X-ray diffraction, UV-vis, and electrochemistry. FINDINGS: Tuning the organic dispersant-SSP interaction allows control over the final film morphology, which can result in coating and filling of NRs with metal-sulfides or metal-oxides after thermal decomposition of the SSP. These findings introduce a new facile method for a fast and large-scale uniform deposition of different (nanostructured) thin film semiconductors on a variety of substrates. We discuss the influence of the dispersant medium on the deposition of metallo-organic SSPs. As an example, the formed ZnO-CdS interface supports charge transfer upon illumination. PMID- 29335190 TI - Phytochemistry and pharmacology of the genus Leonurus: The herb to benefit the mothers and more. AB - Plants belonging to the genus Leonurus, also named motherwort, are traditionally used for anti-gynecological disorder in East Asia, and for sedative in Europe. Chemical investigation of the genus Leonurus not only enriched the natural products library, but also enlarged the pharmacological application of this traditional herb. In this review, we systematically summarized the structures of 259 compounds isolated from the genus Leonurus, featured with 147 labdane diterpenoids. The reported bioactivity studies up to 2017 are presented in the second part, with the main focus on the isolated compounds and also concerning the extracts. In addition to the traditional uterine contraction and sedative activity, recently the cardiovascular protection effect of leonurine has drawn most attention. Other than that, neuroprotection, anti-inflammation, anti-cancer, anti-platelet aggregation and many other activities have been assigned to various compounds from the genus Leonurus. Among 70 bioactivity references cited in this review, 57% of them were concentrated on two alkaloids (leonurine and stachydrine), whereas only 20% are about the 147 diterpenoids. Anti-inflammation is the major bioactivity discovered so far for the labdane diterpenoids from the genus Leonurus, whose further therapeutic potential still remains for exploration. PMID- 29335191 TI - Effects of alumina nanoparticles on the microstructure, strength and wear resistance of poly(methyl methacrylate)-based nanocomposites prepared by friction stir processing. AB - In this study, alumina-reinforced poly(methyl methacrylate) nanocomposites (PMMA/Al2O3) containing up to 20vol% nanoparticles with an average diameter of 50nm were prepared by friction stir processing. The effects of nanoparticle volume fraction on the microstructural features and mechanical properties of PMMA were studied. It is shown that by using a frustum pin tool and employing an appropriate processing condition, i.e. a rotational speed of 1600rpm/min and transverse velocity of 120mm/min, defect free nanocomposites at microscale with fine distribution of the nanoparticles can successfully been prepared. Mechanical evaluations including tensile, flexural, hardness and impact tests indicate that the strength and toughness of the material gradually increases with the nanoparticle concentration and reach to a flexural strength of 129MPa, hardness of 101 Shore D, and impact energy 2kJ/m2 for the nanocomposite containing 20vol% alumina. These values are about 10% and 20% better than untreated and FSP-treated PMMA (without alumina addition). Fractographic studies indicate typical brittle features with crack deflection around the nanoparticles. More interestingly, the sliding wear rate in a pin-on-disk configuration and the friction coefficient are reduced up to 50% by addition of alumina nanoparticles. The worn surfaces exhibit typical sliding and ploughing features. PMID- 29335192 TI - Isolated and modulated effects of topology and material type on the mechanical properties of additively manufactured porous biomaterials. AB - In this study, we tried to quantify the isolated and modulated effects of topological design and material type on the mechanical properties of AM porous biomaterials. Towards this aim, we assembled a large dataset comprising the mechanical properties of AM porous biomaterials with different topological designs (i.e. different unit cell types and relative densities) and material types. Porous structures were additively manufactured from Co-Cr using a selective laser melting (SLM) machine and tested under quasi-static compression. The normalized mechanical properties obtained from those structures were compared with mechanical properties available from our previous studies for porous structures made from Ti-6Al-4V and pure titanium as well as with analytical solutions. The normalized values of elastic modulus and yield stress were found to be relatively close to each other as well as in agreement with analytical solutions regardless of material type. However, the material type was found to systematically affect the mechanical properties of AM porous biomaterials in general and the post-elastic/post-yield range (plateau stress and energy absorption capacity) in particular. To put this in perspective, topological design could cause up to 10-fold difference in the mechanical properties of AM porous biomaterials while up to 2-fold difference was observed as a consequence of changing the material type. PMID- 29335193 TI - Damage mechanisms in bioactive glass matrix composites under uniaxial compression. AB - The damage and crack resistance improvement of bioactive glass is of prime importance, particularly when applied to the repair of load-bearing bones. The present contribution is focused on the prediction of damage mechanisms and crack resistance under uniaxial compression of bioactive glass matrix composites reinforced with a particulate phase. In order to characterize the effects of voids and particles on the damage mechanisms and the macro-response, a two-step homogenization is performed by considering the two phases existing at two different scales: micro/meso through the homogenization of the porous matrix and then meso/macro through the periodic micro-field approach. The damage in the bioactive glass matrix is computed via an anisotropic stress-based damage model, implemented into a finite element program. Failure resulting of excessive damage accumulation in the bioactive glass matrix is predicted by a critical damage criterion combined with a vanishing element technique. The implication of particles in the toughening mechanism as well as the damage and crack resistance improvement in this class of porous biomaterials is highlighted via a parametric study using the proposed numerical model. PMID- 29335194 TI - Characterization and mechanical behaviour of reinforced hydroxyapatite coatings deposited by vacuum plasma spray on SS-316L alloy. AB - Hydroxyapatite powder reinforced individually with 10wt percentage (wt%) of Al2O3 and ZrO2 (HA + 10wt% Al2O3 and HA + 10wt% ZrO2) was thermally sprayed onto SS 316L substrate with a bond coat of Zirconia by vacuum plasma spray (VPS) technique. The resulted coatings were heat treated at 700 degrees C for 1h to study its effects on microstructural and mechanical properties of the deposited coatings. The characterization of the coatings was carried out using scanning electron microscope, x-ray diffraction, porosity, surface roughness and crystallinity using Rietveld analysis. The results indicated that after post coating heat treatment substantial decrease in porosity was witnessed along with significant improvement in crystallinity. Besides, the hardness across the cross section of the coatings and bond strength was considerably improved; however the hardness of top coat was reduced owing to the loosening of un-melted and partially melted particles by diffusion process which takes place during heat treatment. PMID- 29335195 TI - Periprocedural Anticoagulation for Catheter Ablation of Atrial Fibrillation: Practical Implications for Perioperative Management. PMID- 29335196 TI - Percutaneous Transcatheter Valve-in-Valve Implantation for Prosthetic Valve Disease-An Analysis of Evolving Data and Technology. PMID- 29335197 TI - Antifungal efficacy of Au@ carbon dots nanoconjugates against opportunistic fungal pathogen, Candida albicans. AB - In the current study, we have investigated the toxicological effect of a novel hydrophilic nanoconjugate gold@carbon dot (Au@CD) and carbon dots (CDs) on the opportunistic fungal pathogen, Candida albicans. A homogenous experimental analysis was conducted for determining the toxicity of Au@CDs nanoconjugates of five different sizes ranging from 22 +/- 2 to 35 +/- 3 nm prepared using the carbon dots of mean hydrodynamic radius 12 +/- 1 nm. The smallest size of nanoconjugate was synthesized using 0.3 mg ml-1 HAuCl4 precursor. Our study for the first time, conclusively establishes the size-dependent toxicity effect of these characterized nanoconjugates against the abovementioned fungal pathogen. The MIC80 value of smaller sized Au@CDs nanoconjugates, S1-S3 samples were 250, 500 and 500 MUg ml-1, respectively, while nanoconjugates of Rh diameter greater than 30 nm (S4 and S5 samples) did not show any toxicity. The results thus demonstrate that alteration in composition (carbon vs Au@CDs) exhibits a profound effect on the susceptibility of Candida albicans cells. While a size-dependent toxicity was observed for the nanoconjugates, CDs were found to be quite toxic owing to their small size which facilitated their entry into the cells and challenged the biocompatibility of carbon allotropes. PMID- 29335198 TI - Triple cell-responsive nanogels for delivery of drug into cancer cells. AB - In this report, biocompatible nanogels with multi cell-responsiveness (thermo-, pH- and reduction) were fabricated by in situ cross-linking of alginate (AG) using cystamine (Cys) as a cross-linker through an emulsion approach, in the presence of a thermosensitive polymer, poly(N-isopropylacrylamide) (PNIPAM). The AG/PNIPAM nanogels exhibited an abrupt swelling upon temperature increase from 37 to 25 degrees C under physiological conditions (497 +/- 258 nm at 29 degrees C and 147 +/- 48 nm at 37 degrees C). The nanogels were easily taken up by cancer cells at high temperature, where temperature variation could induce toxicity against cancer cells. Furthermore, the accelerated release under reducible and acidic microenvironments inside cells, together their thermosensitivity, made the nanogels selectively deliver drug intracellulary to exert a synergistical anticancer efficacy, potentiating therir high promise for drug delivery application. PMID- 29335199 TI - 3-D mineralized silk fibroin/polycaprolactone composite scaffold modified with polyglutamate conjugated with BMP-2 peptide for bone tissue engineering. AB - In the field of bone tissue engineering, an ideal three-dimensional (3-D) scaffold should not only structurally mimic the extracellular matrix (ECM) in large tissues but also mechanically support the bone healing process and provide biochemical cues to induce osteogenesis. In this study, we investigated the feasibility of functionalisation of scaffolds by coupling polyglutamate acid conjugated with BMP-2 peptide onto silk fibroin (SF)/polycaprolactone (PCL) (SF/PCL) blend nanofibers. The morphology, composition, and mineralisation, were confirmed by FE-SEM, XRD, and FT-IR spectroscopy. The FE-SEM images revealed that wet-electrospun nanofibrous scaffolds exhibited inter-connected nano/micro-pores at different levels, and a different morphology was observed on the 3-D SF/PCL scaffold after mineralisation. Furthermore, the binding property and release behaviour of the peptide were investigated on this mineralized structure, and adipose-derived stem cells were seeded on the composite scaffolds to assay their cytocompatibility and osteogenic differentiation capacities. Results suggest that the polyglutamate motif (repetitive glutamate amino acids) exhibited markedly improved binding properties to mineralized nanofibers, and the mineralized 3-D scaffolds with the conjugated with peptide enhances the mRNA expression of osteogenic genes. The sponge-like 3-D nanofibrous scaffold mechanically and biochemically mimics the regenerative process for applications in bone tissue engineering, including the regeneration of calvarial defects. PMID- 29335200 TI - Discovery and optimization of phthalazinone derivatives as a new class of potent dengue virus inhibitors. AB - Using a dengue replicon cell line-based screening, we identified 3 (dimethylamino)propyl(3-((4-(4-fluorophenyl)-1-oxophthalazin-2(1H) yl)methyl)phenyl)carbamate (10a) as a potent DENV-2 inhibitor, with an IC50 value of 0.64 MUM. A series of novel phthalazinone derivatives based on hit 10a were synthesized and evaluated for their in vitro anti-DENV activity and cytotoxicity. The subsequent SAR study and optimization led to the discovery of the most promising compound 14l, which displayed potent anti-DENV-2 activity, with low IC50 value against DENV-2 RNA replication of 0.13 MUM and high selectivity (SI = 89.2) with acceptable pharmacokinetics profiles. PMID- 29335201 TI - Antitumor activity of pyrrolizines and their Cu(II) complexes: Design, synthesis and cytotoxic screening with potential apoptosis-inducing activity. AB - Two novel series including Schiff bases of the pyrrolizine-5-carboxamides and their Cu(II) complexes were designed, synthesized and analysed using spectral and analytical techniques. The analytical results indicated the formation of the complexes in 1:1 or 1:2 (Metal:Ligand) ratio. The geometry around the Cu centers was confirmed to be tetrahedral or octahedral. The cytotoxic activity of the new compounds was evaluated using MCF-7 (human breast adenocarcinoma), A2780 (human ovary adenocarcinoma) and HT29 (human colon adenocarcinoma), in addition to MRC5 (normal human fetal lung fibroblast) cells using the MTT cytotoxicity assay. The Schiff base 12c and the Cu complex 13b were the most active in the two series with IC50 values in the range of 0.14-2.54 MUM against the three cell lines. Also, the Cu complex 13e showed excellent activity against HT29 with IC50 = 0.05MUM. 7-Cyano-N-(4-methoxyphenyl)-6-((3-phenylallylidene) amino)-2,3-dihydro 1H-pyrrolizine-5-carboxamide (12c) showed high selectivity (6-13 folds) for cancerous cells over normal cells; and it induced marginal increases in the G1 and S phases of MCF-7 cells during cell cycle analysis, while compound 13b increased the MCF-7 Sub-G1 proapoptotic population, and blocked cells in the G2-M phase in a dose dependent manner. The annexin V apoptosis assay revealed the ability of compounds 12c and 13b to increase the early apoptotic MCF-7 cell populations two and three fold, respectively. Furthermore, these findings were supported by data showing that the two compounds (12c and 13b) elicit cytotoxic activity. Taken together, the data presented in this study warrants further in vitro and in vivo investigations. PMID- 29335202 TI - 5-Bromo-oxoisoaporphine platinum(II) complexes exhibit tumor cell cytotoxcicity via inhibition of telomerase activity and disruption of c-myc G-quadruplex DNA and mitochondrial functions. AB - Two platinum(II) complexes [Pt(L)(DMSO)Cl] (1) and [Pt(L)(pn)]Cl (2) with 5-bromo oxoisoaporphine (H-L) were synthesized. We found that the two new platinum(II) complexes were more selective for Hep-G2 tumor cells than for normal cells (HL 7702, WI-38 and L-o2 cell lines). 5-Bromine-oxoisoaporphine platinum(II) complex 2 was a telomerase inhibitor targeting c-myc G4, and it triggered Hep-G2 cell apoptosis more potently than complex 1. Moreover, they induced cell apoptosis via disruption of mitochondrial functions. Significantly increased ROS level, loss of Deltapsi, decrease of bcl-2 level, and increase of some of the mitochondria initiated apoptosis protein levels (including bax, Cyt C, caspase-3, caspase-9, and apaf-1) were observed in Hep-G2 cells. In brief, complexes 1 and 2 triggered Hep-G2 cell apoptosis mainly through inhibiting telomerase activity by interacting with c-myc promoter elements and disruption of mitochondrial pathway. Our results also showed the effects of second ligands on the in vitro antitumor activity in the order of pn > Cl and DMSO. PMID- 29335203 TI - Inhibitor of the human telomerase reverse trancriptase (hTERT) gene promoter induces cell apoptosis via a mitochondrial-dependent pathway. AB - Telomerase is aberrantly expressed in many cancers and plays an important role in the development of cellular immortality and oncogenesis, which makes it a potential cancer therapeutic target for drug discovery. Here, we constructed a firefly luciferase reporter driven by the human telomerase reverse trancriptase (hTERT) gene promoter to screen for inhibitory compounds. Compound 5c was discovered and shown to significantly inhibit the promoter activity of hTERT gene. Furthermore, five analogs of compound 5c were synthesized, and compound 8b was shown to be a more potent inhibitor of hTERT gene promoter activity and subsequent expression of hTERT mRNA and protein. The viability of HeLa cells was inhibited by a knockdown of hTERT gene expression, and the same effect was also observed by treating with compound 8b. Moreover, our results indicated that compound 8b induced apoptosis of HeLa cells, and activated caspase-9 and caspase 3 enzymes. Taken together, these results suggested that compound 8b down regulates the expression of hTERT and induces mitochondrial-dependent apoptosis. PMID- 29335205 TI - Design and synthesis of 2-(4,5,6,7-tetrahydrothienopyridin-2-yl)-benzoimidazole carboxamides as novel orally efficacious Poly(ADP-ribose)polymerase (PARP) inhibitors. AB - The nuclear protein poly(ADP-ribose) polymerases-1/2 (PARP-1/2) are involved in DNA repair damaged by endogenous or exogenous process. And PARP-1/2 inhibitors have been proved to be clinically efficacious for DNA repair deficient tumors in the past decade. We have developed a series of 4,5,6,7-tetrahydrothienopyridin-2 yl benzimidazole carboxamides as novel and potent PARP-1/2 inhibitors. The best compound resulted from this series is compound 27 which displays excellent PARP-1 and PARP-2 inhibitory activity with IC50 of 18 nM and 42 nM, respectively. Furthermore, it can selectively kill BRCA2 deficient V-C8 cells with a CC50 of 920 nM. In the MDA-MB-436 (BRCA-1 mutant) xenograft model, this compound was well tolerated and showed single-agent activity. Based on the results above, compound 27 has been selected as a lead candidate targeting PARP-1/2 and its preclinical characterization is also underway. PMID- 29335204 TI - Synthesis and biological evaluation of bifendate derivatives bearing 6,7-dihydro dibenzo[c,e]azepine scaffold as potential P-glycoprotein and tumor metastasis inhibitors. AB - As a continuation of previous research, fifteen bifendate derivatives bearing 6,7 dihydro-dibenzo [c,e]azepine scaffold were synthesized and evaluated as P-gp medicated multidrug resistance (MDR) reversal agents. Biological evaluation indicated that compounds 6k and 9c more potently reversed P-gp-mediated MDR than bifendate and verapamil (VRP) by blocking P-gp mediated drug efflux function and not by decreasing P-gp expression in K562/A02 MDR cells. Interestingly, wound healing and chamber migration assay showed that 6k and 9c could significantly attenuate the migration of MDA-MB-231 cells. Notably, 6k and 9c could markedly suppress the invasive activity of MDA-MB-231 cells, thus displayed potential anti metastasis activity. Preliminary mechanism studies indicated that the anti metastasis activity of 6k and 9c was associated with their inhibitory effect on the activity and expression of MMP-2 and MMP-9. These results, together with the MDR reversal results indicated that compounds 6k and 9c might be promising leads for developing novel anti-cancer agents with P-gp and tumor metastasis inhibitory activities. PMID- 29335206 TI - Synthesis and biological evaluation of 4-amino-5-cinnamoylthiazoles as chalcone like anticancer agents. AB - A series of 4-amino-5-cinnamoylthiazoles 3a-p were designed and synthesized as chalcone-like anticancer agents. The synthesized derivatives 3a-p were evaluated for their in vitro antiproliferative activities against three different human cancer cell lines including MCF-7, HepG2 and SW480. Most of compounds could significantly prevent proliferation of tested cell lines. In particular, the pyrrolidine derivative 3e namely (E)-1-(4-amino-2-(pyrrolidin-1-yl)thiazol-5-yl) 3-(2,4-dichlorophenyl)prop-2-en-1-one showed promising activity, especially against HepG2 cells (IC50 = 10.6 MUg/ml). Flow cytometric analyses revealed that the prototype compound 3e can prevent the proliferation of HepG2 cells by blockade of the cell cycle at the G2 phase and induction of apoptosis. PMID- 29335207 TI - Synthesis and biological evaluation of 3-(2-aminoethyl) uracil derivatives as gonadotropin-releasing hormone (GnRH) receptor antagonists. AB - We investigated a series of uracil analogues by introducing various substituents on the phenyl ring of the N-3 aminoethyl side chain and evaluated their antagonistic activity against human gonadotropin-releasing hormone (GnRH) receptors. Analogues with substituents at the ortho or meta position demonstrated potent in vitro antagonistic activity. Specifically, the introduction of a 2-OMe group enhanced nuclear factor of activated T-cells (NFAT) inhibition up to 6-fold compared to the unsubstituted analogue. We identified compound 12c as a highly potent GnRH antagonist with moderate CYP inhibition. Compound 12c showed potent and prolonged LH suppression after a single dose was orally administered in castrated monkeys compared to a known antagonist, Elagolix. We believe that our SAR study offers useful insights to design GnRH antagonists as a potential treatment option for endometriosis. PMID- 29335208 TI - New findings on the d(TGGGAG) sequence: Surprising anti-HIV-1 activity. AB - The biological relevance of tetramolecular G-quadruplexes especially as anti-HIV agents has been extensively reported in the literature over the last years. In the light of our recent results regarding the slow G-quadruplex folding kinetics of ODNs based on d(TGGGAG) sequence, here we report a systematic anti-HIV screening to investigate the impact of the G-quadruplex folding on their anti-HIV activity. In particular, varying the single stranded concentrations of ODNs, it has been tested a pool of ODN sample solutions with different G-quadruplex concentrations. The anti-HIV assays have been designed favouring the limited kinetics involved in the tetramolecular G4-association based on the d(TGGGAG) sequence. Aiming to determine the stoichiometry of G-quadruplex structures in the same experimental conditions of the anti-HIV assays, a native gel electrophoresis was performed. The gel confirmed the G-quadruplex formation for almost all sample solutions while showing the formation of high order G4 structures for the more concentrated ODNs solutions. The most significant result is the discovery of a potent anti-HIV activity of the G-quadruplex formed by the natural d(TGGGAG) sequence (IC50 = 14 nM) that, until now, has been reported to be completely inactive against HIV infection. PMID- 29335209 TI - Chameleon-like behavior of indolylpiperidines in complex with cholinesterases targets: Potent butyrylcholinesterase inhibitors. AB - Alzheimer's disease (AD) is the most common form of dementia worldwide with an increasing prevalence for the next years. The multifactorial nature of AD precludes the design of new drugs directed to a single target being probably one of the reasons for recent failures. Therefore, dual binding site acetylcholinesterase (AChE) inhibitors have been revealed as cognitive enhancers and beta-amyloid modulators offering an alternative in AD therapy field. Based on the dual ligands NP61 and donepezil, the present study reports the synthesis of a series of indolylpiperidines hybrids to optimize the NP61 structure preserving the indole nucleus, but replacing the tacrine moiety of NP61 by benzyl piperidine core found in donepezil. Surprisingly, this new family of indolylpiperidines derivatives showed very potent and selective hBuChE inhibition. Further studies of NMR and molecular dynamics have showed the capacity of these hybrid molecules to change their bioactive conformation depending on the binding site, being capable to inhibit with different shapes BuChE and residually AChE. PMID- 29335210 TI - Privileged scaffolds as MAO inhibitors: Retrospect and prospects. AB - This review aims to be a comprehensive, authoritative, critical, and readable review of general interest to the medicinal chemistry community because it focuses on the pharmacological, chemical, structural and computational aspects of diverse chemical categories as monoamine oxidase inhibitors (MAOIs). Monoamine oxidases (MAOs), namely MAO-A and MAO-B represent an enormously valuable class of neuronal enzymes embodying neurobiological origin and functions, serving as potential therapeutic target in neuronal pharmacotherapy, and hence we have coined the term "Neurozymes" which is being introduced for the first time ever. Nowadays, therapeutic attention on MAOIs engrosses two imperative categories; MAO A inhibitors, in certain mental disorders such as depression and anxiety, and MAO B inhibitors, in neurodegenerative disorders like Alzheimer's disease (AD) and Parkinson's disease (PD). The use of MAOIs declined due to some potential side effects, food and drug interactions, and introduction of other classes of drugs. However, curiosity in MAOIs is reviving and the recent developments of new generation of highly selective and reversible MAOIs, have renewed the therapeutic prospective of these compounds. The initial section of the review emphasizes on the detailed classification, structural and binding characteristics, therapeutic potential, current status and future challenges of the privileged pharmacophores. However, the chemical prospective of privileged scaffolds such as; aliphatic and aromatic amines, amides, hydrazines, azoles, diazoles, tetrazoles, indoles, azines, diazines, xanthenes, tricyclics, benzopyrones, and more interestingly natural products, along with their conclusive SARs have been discussed in the later segment of review. The last segment of the article encompasses some patents granted in the field of MAOIs, in a simplistic way. PMID- 29335211 TI - Synthesis of carbazole derivatives containing chalcone analogs as non intercalative topoisomerase II catalytic inhibitors and apoptosis inducers. AB - Novel topoisomerase II (Topo II) inhibitors have gained considerable interest for the development of anticancer agents. In this study, a series of carbazole derivatives containing chalcone analogs (CDCAs) were synthesized and investigated for their Topo II inhibition and cytotoxic activities. The results from Topo II mediated DNA relaxation assay showed that CDCAs could significantly inhibit the activity of Topo II, and the structure-activity relationship indicated the halogen substituent in phenyl ring play an important role in the activity. Further mechanism studies revealed that CDCAs function as non-intercalative Topo II catalytic inhibitors. Moreover, some CDCAs showed micromolar cytotoxic activities. The most potent compound 3h exhibited notable growth inhibition against four human cancer cell lines. Flow cytometric analysis revealed that compounds 3d and 3h arrested the HL-60 cells in sub G1 phase by induction of apoptosis. It was further confirmed by Annexin-V-FITC binding assay. Western blot analysis revealed that compound 3h induces apoptosis likely through the activation of caspase proteins. PMID- 29335212 TI - Synthesis and biological evaluation of novel bavachinin analogs as anticancer agents. AB - A library of 28 analogs of bavachinin including aliphatic and aromatic ethers, epoxide, chalcone, oxime, semicarbazide, oxime ether and triazole derivatives have been synthesized and evaluated for cytotoxicity against four different human cancer cell lines. Bio-evaluation studies exhibited better cytotoxic profile for many analogs compare to bavachinin. Best results were observed for a 1,2,3 triazole analog (17i) with IC50 values 7.72, 16.08, 7.13 and 11.67 MUM against lung (A549), prostate (PC-3), colon (HCT-116) and breast (MCF-7) cancer cell lines respectively. This analog showed three and four fold improvement in cytotoxicity against HCT-116 and A549 cell lines than parent molecule (1). Structure activity relationship (SAR) study for all synthesized analogs was carried out. Further, mechanistic study of the lead molecule (17i) revealed that it inhibits colony formation and in vitro migration of human colon cancer cells (HCT-116). Also, it induced the morphological changes and mediated the apoptotic cell death of HCT-116 cells with perturbance in mitochondrial membrane potential (MMP) and PARP cleavage. PMID- 29335213 TI - Jietacins, azoxy antibiotics with potent nematocidal activity: Design, synthesis, and biological evaluation against parasitic nematodes. AB - Jietacins, an azoxy antibiotic class of chemicals, were isolated from the culture broth of Streptomyces sp. KP-197. They have a unique structural motif, including a vinyl azoxy group and a long acyclic aliphatic chain, which is usually branched but non-branched in the case of jietacin C. During a drug discovery program, we found that jietacins display potent anthelmintic activity against parasitic nematodes and that jietacin A has a moderate or low acute toxicity (LD50 > 300 mg/kg) and no mutagenic potential in a mini Ames screen. This suggests that jietacins have potential for drug discovery research. In order to create a novel anthelmintic agent, we performed design, synthesis, and biological evaluation of jietacin derivatives against parasitic nematodes. Of these derivatives, we found that a fully synthesized simplified derivative exhibited better anthelmintic activity against three parasitic nematodes than natural jietacins. In addition, it had a better efficacy in vivo through oral administration against a mouse nematode. This indicated that the azoxy motif could prove useful as a template for anthelmintic discovery, possibly creating a class of anthelmintic with novel skeletons, a potential new mode of action, and providing further insight for rational drug design. PMID- 29335215 TI - Removing antimony from waste lead storage batteries alloy by vacuum displacement reaction technology. AB - With the wide application of lead acid battery, spent lead acid battery has become a serious problem to environmental protection and human health. Though spent battery can be a contaminant if not handled properly, it is also an important resource to obtain refined lead. Nowadays, the Sb-content in lead storage batteries is about 0.5-3 wt%, which is higher than the Sb-content in the crude lead. However, there are few reports about the process of removing antimony from high-antimony lead bullion. In this study, vacuum displacement reaction technology, a new process for removing antimony from high-antimony lead melts, was investigated. During this process, lead oxide was added to the system and antimony from lead melts was converted into antimony trioxide, which easily was evaporated under vacuum so that antimony was removed from lead melts. The experimental results demonstrated that Sb-content in lead melts decreased from 2.5% to 23 ppm under following conditions: mass ratio of PbO/lead bullion of 0.33, residual gas pressure of 30 Pa, melt temperature of 840 degrees C, reaction time of 60 min. The distillate gotten can be used as by-product to produce antimony white. Moreover, this study is of importance to recycling of waste lead storage batteries alloy. PMID- 29335214 TI - In vivo potent BM635 analogue with improved drug-like properties. AB - BM635 is the hit compound of a promising anti-TB compound class. Herein we report systematic variations around the central pyrrole core of BM635 and we describe the design, synthesis, biological evaluation, pharmacokinetic analysis, as well as in vivo TB mouse efficacy studies of novel BM635 analogues that show improved physicochemical properties. This hit-to-lead campaign led to the identification of a new analogue, 4-((1-isopropyl-5-(4-isopropylphenyl)-2-methyl-1H-pyrrol-3 yl)methyl)morpholine (17), that shows excellent activity (MIC = 0.15 MUM; SI = 133) against drug-sensitive Mycobacterium tuberculosis strains, as well as efficacy in a murine model of TB infection. PMID- 29335216 TI - A new screened microbial consortium OEM2 for lignocellulosic biomass deconstruction and chlorophenols detoxification. AB - Recalcitrance limits biomass application in biorefinery. It is even more so when toxic chlorophenols are present. In this study, we screened a microbial consortium, OEM2, for lignocellulose deconstruction and chlorophenols detoxification through a short-term and efficient screening process. Microbial consortium OEM2 had a good buffer capability in the cultivation process and exhibited a high xylanase activity, with over 85% hemicellulose degradation within 12 days. Throughout the treatment process, 41.5% rice straw decomposition on day 12 and around 75% chlorophenols (MCP, 2,4-DCP, 2,4,6-TCP) removal on day 9, were recorded. Moreover, Fourier translation infrared spectroscopy (FTIR) analysis indicated that chemical bonds and groups (eg. hydrogen-bond, beta-1,4 glycosidic bond, lignin-carbohydrate cross-linking) in the rice straw were broken. Cuticle and silica layer destruction and subsequent exposed cellulose fibers were observed by scanning electron microscopy (SEM). Microbial consortium OEM2 diversity analysis by 16S rRNA gene sequencing indicated that Proteobacteria (41.3%) was the most abundant phylum and the genera Paenibacillus and Pseudomonas played an important role in the lignocellulose decomposition and chlorophenols detoxification. This study developed a faster and more efficient strategy to screen a specific microbial consortium. And the new microbial consortium, OEM2, makes lignocellulose more accessible and complex pollutants unproblematic in the further biorefinery process. PMID- 29335217 TI - Synthesis and characterisation of calix[4]arene based bis(triazole) bis(hexahydroquinoline): Probing highly selective fluorescence quenching towards mercury (Hg2+) analyte. AB - In the present study, we are reporting the synthesis of a triazoles incorporated fluorescent hexahydroquinoline appended calix[4]arene 7 and its highly selective optical recognition ability towards Hg2+. The optical sensor 7 was synthesized via two different synthetic pathways and unambiguously characterized by mass spectrometry and NMR spectroscopy. The stoichiometric ratio between 7 and Hg2+ was determined as 1:1 based on Job's plot and ESI-MS analysis. The chemosensor 7 selectively recognized Hg2+ in the presence of competitive cations such as Cu2+, Cu1+, Co3+, Ni2+, Ag1+, Fe2+, Fe3+, Cr3+, Pb2+, Cd2+, Zn2+, Sn2+, Ti4+, Sb3+, In3+, Ba2+, Ca2+, and K1+. The limit of detection (LOD) was established as 0.5 MUM on spectrofluorimetric analysis. According to world health organization (WHO) in guidelines for drinking-water quality, the mercury level in natural occurring ground and surface water is about ~0.5 MUM (MUg/L). The supra molecule 7 with LOD (0.5 MUM) could potentially serve effective receptors for Hg2+ cation. The probe 7 was applied effectively for detection of Hg2+ in real water samples (i.e. tap and deionized water), spiked with Hg2+ (10 MUM) solution. Moreover, the compound 7 showed non-toxicity during cytotoxic assay against human B cells as they retain their morphology. The supramolecule 7 in living cells showed selectivity towards Hg2+ in cytotoxic assay with T lymphocytes, evident by morphological changes observed via AFM analysis. PMID- 29335218 TI - Environmental benefits and drawbacks of composite fuels based on industrial wastes and different ranks of coal. AB - A promising solution to many problems that thermal power industry is facing today would be switching from conventional coal dust combustion to coal-water slurries containing petrochemicals (CWSP). Here, we perform an experimental study of the most hazardous anthropogenic emissions (sulfur and nitrogen oxides) from the combustion of high-potential CWSP. We identify the main benefits and potential drawbacks of using CWSP in thermal power industry. A set of components and additives to CWSP are explored that significantly affect the environmental and energy performance of fuels. The anthropogenic emissions from the combustion of CWSP made of widespread coal and oil processing wastes are no higher than those from coal dust combustion. Using specialized additives to CWSP, we can change the concentrations of NOx and SOx several times. The most appealing additives to CWSP are sawdust, straw, charcoal, limestone, and glycerol. They provide better environmental, economic, and energy performance and improve the rheological properties of CWSP. Waste oils and oil sludge added to CWSP may impair the environmental performance but boost the cost and energy efficiency. Using coal water slurries containing petrochemicals as a fuel at thermal power plants is an environmentally friendly as well as cost- and energy-efficient way to recover industrial wastes. PMID- 29335219 TI - Thermal removal of arsenic from copper concentrates: Three-dimensional isothermal predominance diagrams for the Cu-As-S-O system. AB - The three-dimensional predominance volume diagrams (PVDs) for the system Cu-As-S O were constructed at 900 K using [Formula: see text] as independent coordinates. The constant total pressure surface was used to identify the equilibrium phases that are stable at 0.25 atm total pressure. The isobaric surface superimposed on the predominance diagram provides useful insights into the roasting of complex copper sulfosalts such as enargite (Cu3AsS4) and tennantite (Cu12As4S13). There are nine interior invariant points each with four associated condensed phases at 900 K. The expanded diagrams showing the stability volumes of each individual phase are presented. According to the PVD for the Cu-As-S-O system, the transformation of enargite to copper sulfate follows the Cu3AsS4->CuS->CuSO4 or Cu3AsS4->Cu2S->CuS->CuSO4 sequence when the pressure of As4O6g is extremely low. At high As4O6g pressures however, enargite can directly transform to copper sulfate. PMID- 29335220 TI - Adeno-associated virus vector-mediated expression of DJ-1 attenuates learning and memory deficits in 2, 2', 4, 4'-tetrabromodiphenyl ether (BDE-47)-treated mice. AB - Evidence indicates that oxidative stress is the central pathological feature of 2, 2', 4, 4'-tetrabromodiphenyl ether (BDE-47)-induced neurotoxicity. Protein kinase C delta (PKCdelta), an oxidative stress-sensitive kinase, can be proteolytically cleaved to yield a catalytically active fragment (PKCdelta-CF) that is involved in various neurodegenerative disorders. Here, we showed that BDE 47 treatment increased ROS, malondialdehyde, and protein carbonyl levels in the mouse hippocampus. In turn, excessive ROS induced caspase-3-dependent PKCdelta activation and stimulated NF-kappaB p65 nuclear translocation, resulting in inflammation in the mouse hippocampus. These changes caused learning and memory deficits in BDE-47-treated mice. Treatment with Z-DEVD-fmk, a caspase-3 inhibitor, or N-acetyl-L-cysteine, an antioxidant, blocked PKCdelta activation and subsequently inhibited inflammation, thereby improving learning and memory deficits in BDE-47-treated mice. Our data further showed that activation of ROS PKCdelta signaling was associated with DJ-1 downregulation, which exerted neuroprotective effects against oxidative stress induced by different neurotoxic agents. Adeno-associated viral vector-mediated DJ-1 overexpression in the hippocampus effectively inhibited excessive ROS production, suppressed caspase-3 dependent PKCdelta cleavage, blunted inflammation and ultimately reversed learning and memory deficits in BDE-47-treated mice. Taken together, our results demonstrate that DJ-1 plays a pivotal role in BDE-47-induced neurotoxic effects and learning and memory deficits. PMID- 29335221 TI - Highly efficient solar-driven photocatalytic degradation on environmental pollutants over a novel C fibers@MoSe2 nanoplates core-shell composite. AB - As an important member of two-dimensional transition metal dichalcogenides, MoSe2 has a wide range of photoelectrochemical properties. However, MoSe2 alone can not directly be used as photocatalyst for its poor performance owing to the strong recombination of photogenerated electron-hole pairs. Here, we propose a novel C fibers@MoSe2 nanoplates core-shell composite, which was prepared by a facile, one step thermal evaporation method. The composite has a remarkable feature of numerous MoSe2 thin nanoplates grown in-situ, densely and even vertically on the surface of the C fibers. Due to the effective separation of photogenerated electron-hole pairs promoted by the prompt transfer of photogenerated electrons through C fibers, compared with commercially available pure MoSe2 powder, such composite exhibits greatly improved solar-driven photocatalytic activity and high stability for the degradation of various organic/inorganic environmental pollutants including methylene blue, rhodamine B, p-chlorophenol and K2Cr2O7 aqueous solutions, showing the great potential for environmental remediation by degrading toxic industrial chemicals in waste water using sunlight. Moreover, this one-step thermal evaporation is an easy-handling, eco-friendly and low-cost synthesis method, which is suitable for large-scale production. PMID- 29335222 TI - Quasi-polymeric construction of stable perovskite-type LaFeO3/g-C3N4 heterostructured photocatalyst for improved Z-scheme photocatalytic activity via solid p-n heterojunction interfacial effect. AB - Materials of perovskite-type structure have attracted considerable attention for their applications in photocatalysis. In this study, a novel composite of p-type LaFeO3 microsphere coated with n-type nanosized graphitic carbon nitride nanosheets was constructed by the quasi-polymeric calcination method with the aid of electrostatic self-assembly interaction. Results indicate that the LaFeO3/g C3N4p-n heterostructured photocatalyst obtained, in contrast to the pure constituents, enabled improved visible-light absorption, and more efficient separation and migration of charge carriers via solid p-n heterojunction interfacial effect. Correspondingly, the LaFeO3/g-C3N4 composite allowed for higher visible-light-responsive photocatalytic activity for the degradation of Brilliant Blue, which was 16.9 and 7.8 times that of pristine g-C3N4 and LaFeO3, respectively. The photocatalytic degradation of Brilliant Blue was ascribed to the combined contributions of the photogenerated holes (h+), superoxide radicals (O2-) and hydroxyl radicals (OH). Based on solid p-n heterojunction interfacial interaction, a Z-scheme charge carrier transfer pathway integrated with the dye sensitization effect is proposed as the underlying mechanism of the photocatalytic reaction process. Therefore, we believe that the perovskite-type LaFeO3/g-C3N4 Z-scheme photcatalyst promotes the development of photocatalysis and holds much promise for environmental remediation. PMID- 29335223 TI - Electron CHanneling ORientation Determination (eCHORD): An original approach to crystalline orientation mapping. AB - We present a proof-of-concept attesting the feasability to obtain orientation maps of polycrystalline materials within a conventional Scanning Electron Microscope (SEM) using a standard goniometer and Back Scattered Electron (BSE) detector. The described method is based on the analysis of the contrast variation of grains due to the channeling of incident electrons on a rotating sample. On each pixel of the map, experimental intensity profiles as a function of the rotation angle are obtained and compared with simulated ones to retrieve the orientation. From first results on aluminum polycrystals, the angular resolution is estimated to be better than one degree. PMID- 29335224 TI - Adaptive-scanning, near-minimum-deformation atomic force microscope imaging of soft sample in liquid: Live mammalian cell example. AB - In this paper, an adaptive-scanning mode (ASM) of atomic force microscope (AFM) with near-minimum sample deformation is proposed for imaging live biological samples in liquid. Conventional contact mode (CM) imaging of live cells is rather slow (scan rate < 0.2 Hz), and as the imaging speed increases, significant deformation of the soft and highly corrugated cell membrane is induced. Such a low speed CM imaging of live biological samples is not only time consuming, but also incapable of capturing dynamic biological evolutions occurring in seconds to minutes. The proposed ASM approach aims to address these issues through two synergetic efforts integrated together. First, an adaptive-scanning technique is proposed to optimally adjust the lateral scanning speed to accommodate the sample topography variation and the probe-sample interaction force, so that the scanning caused sample deformation is maintained below the threshold value while the overall imaging time is minimized. Secondly, a data-driven iterative feedforward control is integrated to the vertical feedback loop along with a gradient-based optimization of the deflection set-point to substantially improve the tracking of the sample topography while maintaining the vertical sample deformation around the minimal. The ASM technique is experimentally validated through imaging live human prostate cancer cells on AFM. The experimental results demonstrate that compared to the conventional CM imaging, the imaging speed is increased over eight times without loss of tracking the topography details of the live cell membrane, and the probe-sample interaction force is substantially reduced. PMID- 29335225 TI - A systematic comparison of on-axis and off-axis transmission Kikuchi diffraction. AB - The capabilities of the novel on-axis transmission Kikuchi diffraction (TKD) technique were explored in a systematic comparison with conventional off-axis TKD. The effect of experimental parameters on the appearance of on-axis and off axis Kikuchi patterns was measured and discussed. In contrast to off-axis TKD, on axis TKD is more sensitive to changes in beam current and beam energy and less sensitive to changes in working distance and detector distance. Moreover, on-axis TKD has a distinct advantage over off-axis TKD due to enhanced pattern intensity, which allows reduction of the beam current or an increase in the acquisition rate. The physical and effective spatial resolution were measured with detector typical parameters. Even though the spatial resolution of both configurations did not differ significantly under test conditions, on-axis TKD enables measurement over large areas with the determined resolution, whereas off-axis TKD is more sensitive to beam drift. Band detection by the Hough-transform led to indexing of, on average, one additional Kikuchi band when measuring with on-axis TKD compared to off-axis TKD and operated more stable on on-axis patterns. PMID- 29335226 TI - Genomic and metabolic characterization of spoilage-associated Pseudomonas species. AB - Pseudomonas are common spoilage agents of aerobically stored fresh foods. Their ability to cause spoilage is species- and may be strain-specific. To improve our understanding of the meat and milk spoilage agents Pseudomonas fragi and Pseudomonas lundensis, we sequenced the genomes of 12 P. fragi and seven P. lundensis isolates. These genomes provided a dataset for genomic analyses. Key volatile organic compounds (VOCs) produced or metabolised by the isolates were determined during their growth on a beef paste and where possible, metabolic activity was associated with gene repertoire. Genome analyses showed that the isolates included in this work may belong to more than two Pseudomonas species with possible spoilage potential. Pan-genome analyses demonstrated a high degree of diversity among the P. fragi and genetic flexibility and diversity may be traits of both species. Growth of the P. lundensis isolates was characterised by the production of large amounts of 1-undecene, 5-methyl-2-hexanone and methyl-2 butenoic acid. P. fragi isolates produced extensive amounts of methyl and ethyl acetate and the production of methyl esters predominated over ethyl esters. Some of the P. fragi produced extremely low levels of VOCs, highlighting the importance of strain-specific studies in food matrices. Furthermore, although usually not considered to be denitrifiers, all isolates generated molecular nitrogen, indicating that at least some steps of this pathway are intact. PMID- 29335227 TI - Potential of yeasts isolated from dry-cured ham to control ochratoxin A production in meat models. AB - The environmental conditions reached during the ripening of dry-cured meat products favour the proliferation of moulds on their surface. Some of these moulds are hazardous to consumers because of their ability to produce ochratoxin A (OTA). Biocontrol using Debaryomyces hansenii could be a suitable strategy to prevent the growth of ochratoxigenic moulds and OTA accumulation in dry-cured meat products. The aim of this work was to evaluate the ability of two strains of D. hansenii to control the growth and OTA production of Penicillium verrucosum in a meat model under water activities (aw) values commonly reached during the dry cured meat product ripening. The presence of D. hansenii strains triggered a lengthening of the lag phase and a decrease of the growth rate of P. verrucosum in meat-based media at 0.97 and 0.92 aw. Both D. hansenii strains significantly reduced OTA production (between 85.16 and 92.63%) by P. verrucosum in the meat based medium at 0.92 aw. Neither absorption nor detoxification of OTA by D. hansenii strains seems to be involved. However, a repression of the expression of the non-ribosomal peptide synthetase (otanpsPN) gene linked to the OTA biosynthetic pathway was observed in the presence of D. hansenii. To confirm the protective role of D. hansenii strains, they were inoculated together with P. verrucosum Pv45 in dry-fermented sausage and dry-cured ham slices. Although P. verrucosum Pv45 counts were not affected by the presence of D. hansenii in both meat matrices, a reduction of OTA amount was observed. Therefore, the effect of D. hansenii strains on OTA accumulation should be attributed to a reduction at transcriptional level. Consequently, native D. hansenii can be useful as biocontrol agent in dry-cured meat products for preventing the hazard associated with the presence of OTA. PMID- 29335228 TI - Irreversible electroporation for locally advanced pancreatic cancer through a minimally invasive surgery supported by laparoscopic ultrasound. AB - INTRODUCTION: Pancreatic cancer is one of the most lethal cancers worldwide, with 5-years survival rate as low as 6%. The majority of pancreatic cancer patients present locally advanced or metastatic disease at diagnosis. Typically, patients affected by locally advanced pancreatic cancer (LAPC) do not undergo radical surgery but are treated with focal ablative therapies. However, a high rate of morbidity due to the heat sink effect has limited the application of ablative techniques on a routine basis in LAPC patients. Irreversible electroporation (IRE) has proved to be a new method of LAPC ablation. PRESENTATION OF THE CASE: A 69-year-old woman affected by LAPC with good response to systemic chemotherapy with FOLFIRINOX and residual 35 mm mass in the neck of the pancreas underwent to IRE through a minimally invasive surgical approach under laparoscopic ultrasound guide. The post-operative course was uneventful and the patient was discharged after 5 days. Six months after surgery she had no evidence of distant or recurrent disease. DISCUSSION: IRE has previously shown promising results in the treatment of LAPC, with relatively acceptable morbidity rates and improvement of survival. We report on the application of IRE through a minimally invasive surgical approach supported by laparoscopic ultrasound. CONCLUSION: In conclusion, we propose a novel technical approach that combines the benefits of IRE on the treatment of patients affected by LAPC with the advantages of laparoscopic surgery. PMID- 29335229 TI - Ciliated cyst of the gallbladder: A new case and literature review. AB - INTRODUCTION: The ciliated cyst is a rare anomaly that develops from the anterior primitive intestine. Its localization is essentially supra diaphragmatic. It's localization in the gallbladder is very uncommon. CASE REPORT: We report the first case in Tunisia of a ciliated cyst of the gallbladder in a 34 years old woman who was operated for a gallbladder stone and in whom the discovery of a cystic mass attached to the neck of the gallbladder was preoperatively. The pathologic study did conclude to a ciliated cyst. DISCUSSION: The ciliated cyst of the gallbladder is a benign congenital lesion that develops from the anterior primitive intestine. The most frequent clinical symptom is abdominal pain and the median age is 45 years old. The most frequent location is the neck. This pathology affects women more than men. Abdominal ultrasound is not very specific exam and describes the ciliated cyst as a cystic lesion often anechogenic and sometimes hyperechogenic. The CT-scan as well as the abdominal MRI are very helpful of the diagnosis. The positif diagnosis of ciliated cyst is histological. CONCLUSION: The recommended current treatment for this rare pathology is surgery and it consists of a celioscopic cholecystectomie. The place of conservatory treatment hasn't been established due to the rarity of described case and the possibility of degeneration. PMID- 29335230 TI - Application of a health risk assessment model for cattle exposed to pesticides in contaminated drinking waters: A study case from the Pampas region, Argentina. AB - Using the USEPA methodology we estimated the probabilistic chronic risks for calves and adult cows due to pesticide exposure through oral intake of contaminated surface and ground waters in Tres Arroyos County (Argentina). Because published data on pesticide toxicity endpoints for cows are scarce, we used threshold levels based on interspecies extrapolation methods. The studied waters showed acceptable quality for cattle production since none of the pesticides were present at high-enough concentrations to potentially affect cow health. Moreover, ground waters had better quality than surface waters, with dieldrin and deltamethrin being the pesticides associated with the highest risk values in the former and the latter water compartments, respectively. Our study presents a novel use of the USEPA risk methodology proving it is useful for water quality evaluation in terms of pesticide toxicity for cattle production. This approach represents an alternative tool for water quality management in the absence of specific cattle pesticide regulatory limits. PMID- 29335231 TI - Reinvestigating the role of reactive species in the oxidation of organic co contaminants during Cr(VI) reactions with sulfite. AB - Experimental work was undertaken in this study to re-investigate the mechanisms and active species responsible for oxidation of co-contaminants in the Cr(VI)/HSO3- reaction system. Batch experiments showed that the degradation rates of 4-chlorophenol (4-CP) correlated well with the rates of Cr(VI) reduction by sulfite in the same solutions, and that O2(aq) was necessary for the oxidation of 4-CP. Multiple lines of evidences indicate that Cr(VI)/HSO3- reaction is a SO4- based oxidation process. SO3- was generated in Cr(VI)/HSO3- system based on the electron spin resonance spectra, which could be transformed to secondary radicals (SO4-, SO5-, and HO). The contribution of SO5- was ruled out through almost complete inhibition of methanol (MeOH) on 4-CP degradation. Considering the negligible inhibition of tert-butanol (TBA) on 4-CP degradation, SO4- was identified to be reactive species in Cr(VI)/HSO3- process. This result was further verified by almost no degradation of nitrobenzene and the inhibiting effect of Cl- in Cr(VI)/HSO3- process. This mechanism is beneficial to application of Cr(VI)/HSO3- system in wastewater treatment. PMID- 29335232 TI - Smartphone App Using Mindfulness Meditation for Women With Chronic Pelvic Pain (MEMPHIS): Protocol for a Randomized Feasibility Trial. AB - BACKGROUND: Female chronic pelvic pain (CPP) is defined as intermittent or constant pelvic or lower abdominal pain occurring in a woman for at least 6 months. Up to a quarter of women are estimated to be affected by CPP worldwide and it is responsible for one fifth of specialist gynecological referrals in the United Kingdom. Psychological interventions are commonly utilized. As waiting times and funding capacity impede access to face-to-face consultations, supported self-management (SSM) has emerged as a viable alternative. Mindfulness meditation is a potentially valuable SSM tool, and in the era of mobile technology, this can be delivered to the individual user via a smartphone app. OBJECTIVE: To assess the feasibility of conducting a trial of a mindfulness meditation intervention delivered by a mobile phone app for patients with CPP. The main feasibility objectives were to assess patient recruitment and app adherence, to obtain information to be used in the sample size estimate of a future trial, and to receive feedback on usability of the app. METHODS: Mindfulness Meditation for Women With Chronic Pelvic Pain (MEMPHIS) is a three-arm feasibility trial, that took place in two hospitals in the United Kingdom. Eligible participants were randomized in a 1:1:1 ratio to one of three treatment arms: (1) the intervention arm, consisting of a guided, spoken mindfulness meditation app; (2) an active control arm, consisting of a progressive muscle relaxation app; and (3) usual care (no app). Participants were followed-up for 6 months. Key feasibility outcomes included the time taken to recruit all patients for the study, adherence, and estimates to be used in the sample size calculation for a subsequent full-scale trial. Upon completion of the feasibility trial we will conduct focus groups to explore app usability and reasons for noncompliance. RESULTS: Recruitment for MEMPHIS took place between May 2016 and September 2016. The study was closed March 2017 and the report was submitted to the NIHR on October 26, 2017. CONCLUSIONS: This feasibility trial will inform the design of a large multicentered trial to assess the clinical effectiveness of mindfulness meditation delivered via a smartphone app for the treatment of CPP. TRIAL REGISTRATION: ClinicalTrials.gov: NCT02721108; https://clinicaltrials.gov/ct2/show/NCT02721108 (Archived by WebCite at http://www.webcitation.org/6wLMAkuaU); BioMed Central: ISRCTN10925965; https://www.isrctn.com/ISRCTN10925965 (Archived by WebCite at http://www.webcitation.org/6wLMVLuys). PMID- 29335233 TI - Internet-Based Group Intervention for Ovarian Cancer Survivors: Feasibility and Preliminary Results. AB - BACKGROUND: Development of psychosocial group interventions for ovarian cancer survivors has been limited. Drawing from elements of cognitive-behavioral stress management (CBSM), mindfulness-based stress reduction (MBSR), and acceptance and commitment therapy (ACT), we developed and conducted preliminary testing of an Internet-based group intervention tailored specifically to meet the needs of ovarian cancer survivors. The Internet-based platform facilitated home delivery of the psychosocial intervention to a group of cancer survivors for whom attending face-to-face programs could be difficult given their physical limitations and the small number of ovarian cancer survivors at any one treatment site. OBJECTIVE: The aim of this study was to develop, optimize, and assess the usability, acceptability, feasibility, and preliminary intended effects of an Internet-based group stress management intervention for ovarian cancer survivors delivered via a tablet or laptop. METHODS: In total, 9 ovarian cancer survivors provided feedback during usability testing. Subsequently, 19 survivors participated in 5 waves of field testing of the 10-week group intervention led by 2 psychologists. The group met weekly for 2 hours via an Internet-based videoconference platform. Structured interviews and weekly evaluations were used to elicit feedback on the website and intervention content. Before and after the intervention, measures of mood, quality of life (QOL), perceived stress, sleep, and social support were administered. Paired t tests were used to examine changes in psychosocial measures over time. RESULTS: Usability results indicated that participants (n=9) performed basic tablet functions quickly with no errors and performed website functions easily with a low frequency of errors. In the field trial (n=19), across 5 groups, the 10-week intervention was well attended. Perceived stress (P=.03) and ovarian cancer-specific QOL (P=.01) both improved significantly during the course of the intervention. Trends toward decreased distress (P=.18) and greater physical (P=.05) and functional well-being (P=.06) were also observed. Qualitative interviews revealed that the most common obstacles participants experienced were technical issues and the time commitment for practicing the techniques taught in the program. Participants reported that the intervention helped them to overcome a sense of isolation and that they appreciated the ability to participate at home. CONCLUSIONS: An Internet-based group intervention tailored specifically for ovarian cancer survivors is highly usable and acceptable with moderate levels of feasibility. Preliminary psychosocial outcomes indicate decreases in perceived stress and improvements in ovarian cancer-specific QOL following the intervention. A randomized clinical trial is needed to demonstrate the efficacy of this promising intervention for ovarian cancer survivors. PMID- 29335234 TI - A Patient-Held Smartcard With a Unique Identifier and an mHealth Platform to Improve the Availability of Prenatal Test Results in Rural Nigeria: Demonstration Study. AB - BACKGROUND: Community-based strategies to test for HIV, hepatitis B virus (HBV), and sickle cell disease (SCD) have expanded opportunities to increase the proportion of pregnant women who are aware of their diagnosis. In order to use this information to implement evidence-based interventions, these results have to be available to skilled health providers at the point of delivery. Most electronic health platforms are dependent on the availability of reliable Internet connectivity and, thus, have limited use in many rural and resource limited settings. OBJECTIVE: Here we describe our work on the development and deployment of an integrated mHealth platform that is able to capture medical information, including test results, and encrypt it into a patient-held smartcard that can be read at the point of delivery without the need for an Internet connection. METHODS: We engaged a team of implementation scientists, public health experts, and information technology specialists in a requirement-gathering process to inform the design of a prototype for a platform that uses smartcard technology, database deployment, and mobile phone app development. Key design decisions focused on usability, scalability, and security. RESULTS: We successfully designed an integrated mHealth platform and deployed it in 4 health facilities across Benue State, Nigeria. We developed the Vitira Health platform to store test results of HIV, HBV, and SCD in a database, and securely encrypt the results on a Quick Response code embedded on a smartcard. We used a mobile app to read the contents on the smartcard without the need for Internet connectivity. CONCLUSIONS: Our findings indicate that it is possible to develop a patient-held smartcard and an mHealth platform that contains vital health information that can be read at the point of delivery using a mobile phone-based app without an Internet connection. TRIAL REGISTRATION: ClinicalTrials.gov NCT03027258; https://clinicaltrials.gov/ct2/show/NCT03027258 (Archived by WebCite at http://www.webcitation.org/6owR2D0kE). PMID- 29335235 TI - VA FitHeart, a Mobile App for Cardiac Rehabilitation: Usability Study. AB - BACKGROUND: Cardiac rehabilitation (CR) improves outcomes for patients with ischemic heart disease or heart failure but is underused. New strategies to improve access to and engagement in CR are needed. There is considerable interest in technology-facilitated home CR. However, little is known about patient acceptance and use of mobile technology for CR. OBJECTIVE: The aim of this study was to develop a mobile app for technology-facilitated home CR and seek to determine its usability. METHODS: We recruited patients eligible for CR who had access to a mobile phone, tablet, or computer with Internet access. The mobile app includes physical activity goal setting, logs for tracking physical activity and health metrics (eg, weight, blood pressure, and mood), health education, reminders, and feedback. Study staff demonstrated the mobile app to participants in person and then observed participants completing prespecified tasks with the mobile app. Participants completed the System Usability Scale (SUS, 0-100), rated likelihood to use the mobile app (0-100), questionnaires on mobile app use, and participated in a semistructured interview. The Unified Theory of Acceptance and Use of Technology and the Theory of Planned Behavior informed the analysis. On the basis of participant feedback, we made iterative revisions to the mobile app between users. RESULTS: We conducted usability testing in 13 participants. The first version of the mobile app was used by the first 5 participants, and revised versions were used by the final 8 participants. From the first version to revised versions, task completion success rate improved from 44% (11/25 tasks) to 78% (31/40 tasks; P=.05), SUS improved from 54 to 76 (P=.04; scale 0-100, with 100 being the best usability), and self-reported likelihood of use remained high at 76 and 87 (P=.30; scale 0-100, with 100 being the highest likelihood). In interviews, patients expressed interest in tracking health measures ("I think it'll be good to track my exercise and to see what I'm doing"), a desire for introductory training ("Initially, training with a technical person, instead of me relying on myself"), and an expectation for sharing data with providers ("It would also be helpful to share with my doctor, it just being a matter of clicking a button and sharing it with my doctor"). CONCLUSIONS: With participant feedback and iterative revisions, we significantly improved the usability of a mobile app for CR. Patient expectations for using a mobile app for CR include tracking health metrics, introductory training, and sharing data with providers. Iterative mixed-method evaluation may be useful for improving the usability of health technology. PMID- 29335236 TI - Tanzania Health Information Technology (T-HIT) System: Pilot Test of a Tablet Based System to Improve Prevention of Mother-to-Child Transmission of HIV. AB - BACKGROUND: The prevention of mother-to-child transmission (PMTCT) of HIV requires innovative solutions. Although routine monitoring is effective in some areas, standardized and easy-to-scale solutions to identify and monitor pregnant women, test them for HIV, and treat them and their children is still lacking. Mobile health (mHealth) offers opportunities for surveillance and reporting in rural areas of low- and middle-income countries. OBJECTIVE: The aim of this study was to document the preliminary impacts of the Tanzania Health Information Technology (T-HIT) system mHealth intervention aimed at health workers for PMTCT care delivery and capacity building in a rural area of Tanzania. METHODS: We developed T-HIT as a tablet-based system for an electronic data collection system designed to capture and report PMTCT data during antenatal, delivery, and postnatal visits in Misungwi, Tanzania. T-HIT was tested by health workers in a pilot randomized trial comparing seven sites using T-HIT assigned at random to seven control sites; all sites maintained standard paper record-keeping during the pilot intervention period. We compared numbers of antenatal visits, number of HIV tests administered, and women testing positive across all sites. RESULTS: Health workers recorded data from antenatal visits for 1530 women; of these, 695 (45.42%) were tested for HIV and 3.59% (55/1530) tested positive. Health workers were unable to conduct an HIV test for 103 women (6.73%, 103/1530) because of lack of reagent, which is not captured on paper logs. There was no difference in the activity level for testing when comparing sites T-HIT to non-T-HIT sites. We observed a significant postintervention increase in the numbers of women testing positive for HIV compared with the preintervention period (P=.04), but this was likely not attributable to the T-HIT system. CONCLUSIONS: T-HIT had a high degree of acceptability and feasibility and is perceived as useful by health workers, who documented more antenatal visits during the pilot intervention compared with a traditional system of paper logs, suggesting potential for improvements in antenatal care for women at risk for HIV. PMID- 29335237 TI - "Why Do They Need to Check Me?" Patient Participation Through eHealth and the Doctor-Patient Relationship: Qualitative Study. AB - BACKGROUND: Roles in the doctor-patient relationship are changing and patient participation in health care is increasingly emphasized. Electronic health (eHealth) services such as patient accessible electronic health records (PAEHRs) have been implemented to support patient participation. Little is known about practical use of PAEHR and its effect on roles of doctors and patients. OBJECTIVE: This qualitative study aimed to investigate how physicians view the idea of patient participation, in particular in relation to the PAEHR system. Hereby, the paper aims to contribute to a deeper understanding of physicians' constructions of PAEHR, roles in the doctor-patient relationship, and levels and limits of involvement. METHODS: A total of 12 semistructured interviews were conducted with physicians in different fields. Interviews were transcribed, translated, and a theoretically informed thematic analysis was performed. RESULTS: Two important aspects were identified that are related to the doctor patient relationship: roles and involvement. The physicians viewed their role as being the ones to take on the responsibility, determining treatment options, and to be someone who should be trusted. In relation to the patient's role, lack of skills (technical or regarding medical jargon), motives to read, and patients' characteristics were aspects identified in the interviews. Patients were often referred to as static entities disregarding their potential to develop skills and knowledge over time. Involvement captures aspects that support or hinder patients to take an active role in their care. CONCLUSIONS: Literature of at least two decades suggests an overall agreement that the paternalistic approach in health care is inappropriate, and a collaborative process with patients should be adopted. Although the physicians in this study stated that they, in principle, were in favor of patient participation, the analysis found little support in their descriptions of their daily practice that participation is actualized. As seen from the results, paternalistic practices are still present, even if professionals might not be aware of this. This can create a conflict between patients who strive to become more informed and their questions being interpreted as signs of critique and mistrust toward the physician. We thus believe that the full potential of PAEHRs is not reached yet and argue that the concept of patient empowerment is problematic as it triggers an interpretation of "power" in health care as a zero-sum, which is not helpful for the maintenance of the relationship between the actors. Patient involvement is often discussed merely in relation to decision making; however, this study emphasizes the need to include also sensemaking and learning activities. This would provide an alternative understanding of patients asking questions, not in terms of "monitoring the doctor" but to make sense of the situation. PMID- 29335240 TI - "Arrogant" surgeon fined for writing his initials on patients' livers. PMID- 29335238 TI - Automating Quality Measures for Heart Failure Using Natural Language Processing: A Descriptive Study in the Department of Veterans Affairs. AB - BACKGROUND: We developed an accurate, stakeholder-informed, automated, natural language processing (NLP) system to measure the quality of heart failure (HF) inpatient care, and explored the potential for adoption of this system within an integrated health care system. OBJECTIVE: To accurately automate a United States Department of Veterans Affairs (VA) quality measure for inpatients with HF. METHODS: We automated the HF quality measure Congestive Heart Failure Inpatient Measure 19 (CHI19) that identifies whether a given patient has left ventricular ejection fraction (LVEF) <40%, and if so, whether an angiotensin-converting enzyme inhibitor or angiotensin-receptor blocker was prescribed at discharge if there were no contraindications. We used documents from 1083 unique inpatients from eight VA medical centers to develop a reference standard (RS) to train (n=314) and test (n=769) the Congestive Heart Failure Information Extraction Framework (CHIEF). We also conducted semi-structured interviews (n=15) for stakeholder feedback on implementation of the CHIEF. RESULTS: The CHIEF classified each hospitalization in the test set with a sensitivity (SN) of 98.9% and positive predictive value of 98.7%, compared with an RS and SN of 98.5% for available External Peer Review Program assessments. Of the 1083 patients available for the NLP system, the CHIEF evaluated and classified 100% of cases. Stakeholders identified potential implementation facilitators and clinical uses of the CHIEF. CONCLUSIONS: The CHIEF provided complete data for all patients in the cohort and could potentially improve the efficiency, timeliness, and utility of HF quality measurements. PMID- 29335239 TI - Comparing Diet and Exercise Monitoring Using Smartphone App and Paper Diary: A Two-Phase Intervention Study. AB - BACKGROUND: There is increasing recognition that personalized approaches may be more effective in helping people establish healthier eating patterns and exercise more, and that this approach may be particularly effective in adolescents. OBJECTIVE: The objective of this study was to investigate the use of a smartphone app (FoodWiz2) in supporting healthy lifestyle choices in adolescence. METHODS: Participants (N=34: 11 male, 23 female) aged 16-19 years in full- or part-time education were recruited from sixth form colleges, schools, and other further education establishments in Norfolk and Suffolk, United Kingdom, between February and May 2015. Participants recorded food intake and exercise using a paper diary for 4-5 weeks and then used the app for the same duration. Initial nutrition education and general support were provided during the paper diary use, but the app included personalized messages sent in response to app activity. At the end of each study phase, participants completed an online questionnaire to describe their experience of using the paper diary and app. RESULTS: Record completion declined throughout the study, possibly affected by examination pressure. Food intake data showed increased fruit consumption and significantly reduced consumption of chocolate snacks (P=.01) and fizzy drinks (P=.002) among participants using the app. Questionnaire responses indicated that the app was generally preferred to the paper diary, in particular, the app was seen as less boring to use (P=.03) and more acceptable in social settings (P<.001). CONCLUSIONS: This app-based approach has shown the potential for a more effective approach to improving adolescent diet and exercise levels. PMID- 29335241 TI - The MFHR1 Fusion Protein Is a Novel Synthetic Multitarget Complement Inhibitor with Therapeutic Potential. AB - The complement system is essential for host defense, but uncontrolled complement system activation leads to severe, mostly renal pathologies, such as atypical hemolytic uremic syndrome or C3 glomerulopathy. Here, we investigated a novel combinational approach to modulate complement activation by targeting C3 and the terminal pathway simultaneously. The synthetic fusion protein MFHR1 links the regulatory domains of complement factor H (FH) with the C5 convertase/C5b-9 inhibitory fragment of the FH-related protein 1. In vitro, MFHR1 showed cofactor and decay acceleration activity and inhibited C5 convertase activation and C5b-9 assembly, which prevented C3b deposition and reduced C3a/C5a and C5b-9 generation. Furthermore, this fusion protein showed the ability to escape deregulation by FH-related proteins and form multimeric complexes with increased inhibitory activity. In addition to substantially inhibiting alternative and classic pathway activation, MFHR1 blocked hemolysis mediated by serum from a patient with aHUS expressing truncated FH. In FH-/- mice, MFHR1 administration augmented serum C3 levels, reduced abnormal glomerular C3 deposition, and ameliorated C3 glomerulopathy. Taking the unique design of MFHR1 into account, we suggest that the combination of proximal and terminal cascade inhibition together with the ability to form multimeric complexes explain the strong inhibitory capacity of MFHR1, which offers a novel basis for complement therapeutics. PMID- 29335242 TI - Effect of Bariatric Surgery on CKD Risk. AB - Obesity is linked to the development and progression of CKD, but whether bariatric surgery protects against CKD is poorly understood. We, therefore, examined whether bariatric surgery influences CKD risk. The study included 2144 adults who underwent bariatric surgery from March of 2006 to April of 2009 and participated in the Longitudinal Assessment of Bariatric Surgery-2 Study cohort. The primary outcome was CKD risk categories as assessed by the Kidney Disease Improving Global Outcomes (KDIGO) consortium criteria using a combination of eGFR and albuminuria. Patients were 79% women and 87% white, with a median age of 46 years old. Improvements were observed in CKD risk at 1 and 7 years after surgery in patients with moderate baseline CKD risk (63% and 53%, respectively), high baseline risk (78% and 56%, respectively), and very high baseline risk (59% and 23%, respectively). The proportion of patients whose CKD risk worsened was <=10%; five patients developed ESRD. Sensitivity analyses using year 1 as baseline to minimize the effect of weight loss on serum creatinine and differing eGFR equations offered qualitatively similar results. Treatment with bariatric surgery associated with an improvement in CKD risk categories in a large proportion of patients for up to 7 years, especially in those with moderate and high baseline risk. These findings support consideration of CKD risk in evaluation for bariatric surgery and further study of bariatric surgery as a treatment for high risk obese patients with CKD. PMID- 29335244 TI - Making the Right Decision: Do Clinical Decision Support Systems for AKI Improve Patient Outcomes? PMID- 29335243 TI - Nephronectin Regulates Mesangial Cell Adhesion and Behavior in Glomeruli. AB - A critical aspect of kidney function occurs at the glomerulus, the capillary network that filters the blood. The glomerular basement membrane (GBM) is a key component of filtration, yet our understanding of GBM interactions with mesangial cells, specialized pericytes that provide structural stability to glomeruli, is limited. We investigated the role of nephronectin (Npnt), a GBM component and known ligand of alpha8beta1 integrin. Immunolocalization and in situ hybridization studies in kidneys of adult mice revealed that nephronectin is produced by podocytes and deposited into the GBM. Conditional deletion of Npnt from nephron progenitors caused a pronounced increase in mesangial cell number and mesangial sclerosis. Nephronectin colocalized with alpha8beta1 integrin to novel, specialized adhesion structures that occurred at sites of mesangial cell protrusion at the base of the capillary loops. Absence of nephronectin disrupted these adhesion structures, leading to mislocalization of alpha8beta1. Podocyte specific deletion of Npnt also led to mesangial sclerosis in mice. These results demonstrate a novel role for nephronectin and alpha8beta1 integrin in a newly described adhesion complex and begin to uncover the molecular interactions between the GBM and mesangial cells, which govern mesangial cell behavior and may have a role in pathologic states. PMID- 29335245 TI - CDK9-mediated phosphorylation controls the interaction of TIP60 with the transcriptional machinery. AB - The acetyltransferase TIP60 is regulated by phosphorylation, and we have previously shown that phosphorylation of TIP60 on S86 by GSK-3 promotes p53 mediated induction of the BCL-2 protein PUMA. TIP60 phosphorylation by GSK-3 requires a priming phosphorylation on S90, and here, we identify CDK9 as a TIP60S90 kinase. We demonstrate that a phosphorylation-deficient mutant, TIP60S90A, exhibits reduced interaction with chromatin, histone 3 and RNA Pol II, while its association with the TIP60 complex subunit EPC1 is not affected. Consistently, we find a diminished association of TIP60S90A with the MYC gene. We show that cells expressing TIP60S90A, but also TIP60S86A, which retains S90 phosphorylation, exhibit reduced histone 4 acetylation and proliferation. Thus, our data indicate that, during transcription, phosphorylation of TIP60 at two sites has different regulatory effects on TIP60, whereby S90 phosphorylation controls association with the transcription machinery, and S86 phosphorylation is regulating TIP60 HAT activity. PMID- 29335247 TI - The genetics of domestication: Research into the domestication of livestock and companion animals sheds light both on their "evolution" and human history. PMID- 29335246 TI - Differential roles of ERRFI1 in EGFR and AKT pathway regulation affect cancer proliferation. AB - AKT signaling is modulated by a complex network of regulatory proteins and is commonly deregulated in cancer. Here, we present a dual mechanism of AKT regulation by the ERBB receptor feedback inhibitor 1 (ERRFI1). We show that in cells expressing high levels of EGFR, ERRF1 inhibits growth and enhances responses to chemotherapy. This is mediated in part through the negative regulation of AKT signaling by direct ERRFI1-dependent inhibition of EGFR In cells expressing low levels of EGFR, ERRFI1 positively modulates AKT signaling by interfering with the interaction of the inactivating phosphatase PHLPP with AKT, thereby promoting cell growth and chemotherapy desensitization. These observations broaden our understanding of chemotherapy response and have important implications for the selection of targeted therapies in a cell context dependent manner. EGFR inhibition can only sensitize EGFR-high cells for chemotherapy, while AKT inhibition increases chemosensitivity in EGFR-low cells. By understanding these mechanisms, we can take advantage of the cellular context to individualize antineoplastic therapy. Finally, our data also suggest targeting of EFFRI1 in EGFR-low cancer as a promising therapeutic approach. PMID- 29335248 TI - Fast neurogenesis from carotid body quiescent neuroblasts accelerates adaptation to hypoxia. AB - Unlike other neural peripheral organs, the adult carotid body (CB) has a remarkable structural plasticity, as it grows during acclimatization to hypoxia. The CB contains neural stem cells that can differentiate into oxygen-sensitive glomus cells. However, an extended view is that, unlike other catecholaminergic cells of the same lineage (sympathetic neurons or chromaffin cells), glomus cells can divide and thus contribute to CB hypertrophy. Here, we show that O2-sensitive mature glomus cells are post-mitotic. However, we describe an unexpected population of pre-differentiated, immature neuroblasts that express catecholaminergic markers and contain voltage-dependent ion channels, but are unresponsive to hypoxia. Neuroblasts are quiescent in normoxic conditions, but rapidly proliferate and differentiate into mature glomus cells during hypoxia. This unprecedented "fast neurogenesis" is stimulated by ATP and acetylcholine released from mature glomus cells. CB neuroblasts, which may have evolved to facilitate acclimatization to hypoxia, could contribute to the CB oversensitivity observed in highly prevalent human diseases. PMID- 29335249 TI - Hypertension and Diabetes Mellitus: Coprediction and Time Trajectories. AB - Type 2 diabetes mellitus and hypertension overlap in the population. In many subjects, development of diabetes mellitus is characterized by a relatively rapid increase in plasma glucose values. Whether a similar phenomenon occurs during the development of hypertension is not known. We analyzed the pattern of blood pressure (BP) changes during the development of hypertension in patients with or without diabetes mellitus using data from the MCDS (Mexico City Diabetes Study; a population-based study of diabetes mellitus in Hispanic whites) and in the FOS (Framingham Offspring Study, a community-based study in non-Hispanic whites) during a 7-year follow-up. Diabetes mellitus at baseline was a significant predictor of incident hypertension (in FOS, odds ratio, 3.14; 95% confidence interval, 2.17-4.54) independently of sex, age, body mass index, and familial diabetes mellitus. Conversely, hypertension at baseline was an independent predictor of incident diabetes mellitus (in FOS, odds ratio, 3.33; 95% CI, 2.50 4.44). In >60% of the converters, progression from normotension to hypertension was characterized by a steep increase in BP values, averaging 20 mm Hg for systolic BP within 3.5 years (in MCDS). In comparison with the nonconverters group, hypertension and diabetes mellitus converters shared a metabolic syndrome phenotype (hyperinsulinemia, higher body mass index, waist girth, BP, heart rate and pulse pressure, and dyslipidemia). Overall, results were similar in the 2 ethnic groups. We conclude that (1) development of hypertension and diabetes mellitus track each other over time, (2) transition from normotension to hypertension is characterized by a sharp increase in BP values, and (3) insulin resistance is one common feature of both prediabetes and prehypertension and an antecedent of progression to 2 respective disease states. PMID- 29335250 TI - Akap1 Regulates Vascular Function and Endothelial Cells Behavior. AB - MitoAKAPs (mitochondrial A kinase anchoring proteins), encoded by the Akap1 gene, regulate multiple cellular processes governing mitochondrial homeostasis and cell viability. Although mitochondrial alterations have been associated to endothelial dysfunction, the role of mitoAKAPs in the vasculature is currently unknown. To test this, postischemic neovascularization, vascular function, and arterial blood pressure were analyzed in Akap1 knockout mice (Akap1-/- ) and their wild-type (wt) littermates. Primary cultures of aortic endothelial cells (ECs) were also obtained from Akap1-/- and wt mice, and ECs migration, proliferation, survival, and capillary-like network formation were analyzed under different experimental conditions. After femoral artery ligation, Akap1-/- mice displayed impaired blood flow and functional recovery, reduced skeletal muscle capillary density, and Akt phosphorylation compared with wt mice. In Akap1-/- ECs, a significant enhancement of hypoxia-induced mitophagy, mitochondrial dysfunction, reactive oxygen species production, and apoptosis were observed. Consistently, capillary-like network formation, migration, proliferation, and AKT phosphorylation were reduced in Akap1-/- ECs. Alterations in Akap1-/- ECs behavior were also confirmed in Akap1-/ mice, which exhibited a selective reduction in acetylcholine-induced vasorelaxation in mesenteric arteries and a mild but significant increase in arterial blood pressure levels compared with wt. Finally, overexpression of a constitutively active Akt mutant restored vascular reactivity and ECs function in Akap1-/- conditions. These results demonstrate the important role of mitoAKAPs in the modulation of multiple ECs functions in vivo and in vitro, suggesting that mitochondria-dependent regulation of ECs might represent a novel therapeutic approach in cardiovascular diseases characterized by endothelial dysfunction. PMID- 29335251 TI - Goblet cell carcinomas of the appendix: rare but aggressive neoplasms with challenging management. AB - Goblet cell carcinomas (GCC) are a rare, aggressive sub-type of appendiceal tumours with neuroendocrine features, and controversy exists with regards to therapeutic strategy. We undertook a retrospective review of GCC patients surgically treated at two tertiary referral centres. Clinical and histopathological data were extracted from a prospectively maintained database. Survival analyses utilised Kaplan-Meier methodology. Twenty-one patients were identified (9 females). Median age at diagnosis was 55 years (range 32-77). There were 3, 6 and 9 grade 1, 2 and 3 tumours, respectively. One, 10, 5 and 5 patients had stage I, II, III and IV disease at diagnosis, respectively. There were 8, 10 and 3 Tang class A, B and C tumours, respectively. Index operation was appendectomy (n = 12), right hemicolectomy (n = 6) or resections including appendix/right colon, omentum and the gynaecological system (n = 3). Eight patients underwent completion right hemicolectomy. Surgery for recurrence included small bowel resection (n = 2), debulking with peritonectomy and heated intraperitoneal chemotherapy, and hysterectomy and bilateral salpingo oophorectomy (all n = 1). Median follow-up was 30 months (range 2.5-123). One-, 3 and 5-year OS was 79.4, 60 and 60%, respectively. Mean OS (1-, 3-, and 5-year OS) for Tang class A, B and C tumours were 73.1 months (85.7, 85.7, 51.4%), 83.7 months (all 66.7%) and 28.5 months (66.7, 66.7%, not reached), respectively. Chromogranin A/B and 68Ga-DOTATATE PET/CT were not useful in follow-up, but CEA, CA 19-9, CA 125 and 18F-FDG PET/CT identified tumour recurrence. GCC must be clearly discriminated from relatively indolent appendiceal neuroendocrine neoplasms. 18F-FDG PET/CT and CEA/CA19-9/CA 125 are useful in detecting recurrence of GCC. PMID- 29335253 TI - Women's reproductive factors and incident cardiovascular disease in the UK Biobank. AB - BACKGROUND: Studies have suggested that women's reproductive factors are associated with the risk of cardiovascular disease (CVD); however, findings are mixed. We assessed the relationship between reproductive factors and incident CVD in the UK Biobank. METHODS: Between 2006 and 2010, the UK Biobank recruited over 500 000 participants aged 40-69 years across the UK. During 7 years of follow-up, 9054 incident cases of CVD (34% women), 5782 cases of coronary heart disease (CHD) (28% women), and 3489 cases of stroke (43% women) were recorded among 267 440 women and 215 088 men without a history of CVD at baseline. Cox regression models yielded adjusted hazard ratios (HRs) for CVD, CHD and stroke associated with reproductive factors. RESULTS: Adjusted HRs (95% CI) for CVD were 1.10 (1.01 to 1.30) for early menarche (<12 years), 0.97 (0.96 to 0.98) for each year increase in age at first birth, 1.04 (1.00 to 1.09) for each miscarriage, 1.14 (1.02 to 1.28) for each stillbirth, and 1.33 (1.19 to 1.49) for early menopause (<47 years). Hysterectomy without oophorectomy or with previous oophorectomy had adjusted HRs of 1.16 (1.06 to 1.28) and 2.30 (1.20 to 4.43) for CVD. Each additional child was associated with a HR for CVD of 1.03 (1.00 to 1.06) in women and 1.03 (1.02 to 1.05) in men. CONCLUSIONS: Early menarche, early menopause, earlier age at first birth, and a history of miscarriage, stillbirth or hysterectomy were each independently associated with a higher risk of CVD in later life. The relationship between the number of children and incident CVD was similar for men and women. PMID- 29335252 TI - Diagnostic re-evaluation of congenital hypothyroidism in Macedonia: predictors for transient or permanent hypothyroidism. AB - BACKGROUND: Diagnostic re-evaluation is important for all patients with congenital hypothyroidism (CH) for determining the etiology and identifying transient CH cases. Our study is a first thyroxine therapy withdrawal study conducted in Macedonian CH patients for a diagnostic re-evaluation. We aimed to evaluate the etiology of CH, the prevalence of transient CH and identify predictive factors for distinguishing between permanent (PCH) and transient CH (TCH). MATERIALS AND METHODS: Patients with CH aged >3 years underwent a trial of treatment withdrawal for 4 weeks period. Thyroid function testing (TFT), ultrasound and Technetium-99m pertechnetate thyroid scan were performed thereafter. TCH was defined when TFT remained within normal limits for at least 6 month follow-up. PCH was diagnosed when TFT was abnormal and classified according the imaging findings. RESULTS: 42 (55%) patients had PCH and 34 (45.0%) patients had TCH. Thyroid agenesia was the most prevalent form in the PCH group. Patients with TCH had lower initial thyroid-stimulating hormone (TSH) values (P < 0.0001); higher serum thyroxine levels (P = 0.0023) and lower mean doses of levothyroxine during treatment period (P < 0.0001) than patients with PCH. Initial TSH level <30.5 IU/mL and levothyroxine dose at 3 years of age <2.6 mg/kg/day were a significant predictive factors for TCH; sensitivity 92% and 100%, specificity 75.6% and 76%, respectively. CONCLUSION: TCH presents a significant portion of patients with CH. Initial TSH value and levothyroxine dose during treatment period has a predictive role in differentiating TCH from PCH. Earlier re evaluation, between 2 and 3 years age might be considered in some patients requiring low doses of levothyroxine. PMID- 29335254 TI - Depressed left and right ventricular cardiac output in fetuses of diabetic mothers. AB - INTRODUCTION: We compared right and left ventricular cardiac output (RVCO and LVCO) in fetuses of diabetic mothers (FDM) to a large normal cohort. METHODS: We prospectively enrolled 264 normal fetuses and 30 FDM. Fetal CO parameters: semilunar valve velocity time integrals (AVVTI, PVVTI), ventricular outflow diameters (LVOTD, RVOTD), stroke volumes (AVSV, PVSV) were measured, and LVCO and RVCO calculated. These were normalized using nonlinear regression to estimated fetal weight (EFW) to provide means and standard deviations. Among FDMs, mean Z scores and 95% confidence limits (CL) were calculated, and compared to zero. RESULTS: LVCO, RVCO, and parameters they were calculated from, increased predictably and non-linearly with increasing EFW. In FDM, LVCO was depressed (mean Z -1.679, 95% CL -2.404, -0.955, p<0.001), and AVVTI, LVOTD, AVSV significantly lower than normal. Similarly, RVCO (mean Z = -1.119, CL -1.839, 0.400, p=0.003), RVOTD (mean -2.085, CL -3.077, -1.093, p<0.001), and PVSV (mean 1.184, CL -1.921, -0.446, p=0.003) were lower than normal, however, PVVTI was not different (mean Z 0.078, CL -0.552, +0.707, p=0.803). CONCLUSION: Normal biventricular stroke volumes and outputs follow a nonlinear regression with EFW. FDM have significantly lower right and left heart stroke volumes and outputs for weight than do normal fetuses. PMID- 29335255 TI - Neighbourhood looking glass: 360o automated characterisation of the built environment for neighbourhood effects research. AB - BACKGROUND: Neighbourhood quality has been connected with an array of health issues, but neighbourhood research has been limited by the lack of methods to characterise large geographical areas. This study uses innovative computer vision methods and a new big data source of street view images to automatically characterise neighbourhood built environments. METHODS: A total of 430 000 images were obtained using Google's Street View Image API for Salt Lake City, Chicago and Charleston. Convolutional neural networks were used to create indicators of street greenness, crosswalks and building type. We implemented log Poisson regression models to estimate associations between built environment features and individual prevalence of obesity and diabetes in Salt Lake City, controlling for individual-level and zip code-level predisposing characteristics. RESULTS: Computer vision models had an accuracy of 86%-93% compared with manual annotations. Charleston had the highest percentage of green streets (79%), while Chicago had the highest percentage of crosswalks (23%) and commercial buildings/apartments (59%). Built environment characteristics were categorised into tertiles, with the highest tertile serving as the referent group. Individuals living in zip codes with the most green streets, crosswalks and commercial buildings/apartments had relative obesity prevalences that were 25% 28% lower and relative diabetes prevalences that were 12%-18% lower than individuals living in zip codes with the least abundance of these neighbourhood features. CONCLUSION: Neighbourhood conditions may influence chronic disease outcomes. Google Street View images represent an underused data resource for the construction of built environment features. PMID- 29335257 TI - Staphylococcal Superantigens Use LAMA2 as a Coreceptor To Activate T Cells. AB - Canonical Ag-dependent TCR signaling relies on activation of the src-family tyrosine kinase LCK. However, staphylococcal superantigens can trigger TCR signaling by activating an alternative pathway that is independent of LCK and utilizes a Galpha11-containing G protein-coupled receptor (GPCR) leading to PLCbeta activation. The molecules linking the superantigen to GPCR signaling are unknown. Using the ligand-receptor capture technology LRC-TriCEPS, we identified LAMA2, the alpha2 subunit of the extracellular matrix protein laminin, as the coreceptor for staphylococcal superantigens. Complementary binding assays (ELISA, pull-downs, and surface plasmon resonance) provided direct evidence of the interaction between staphylococcal enterotoxin E and LAMA2. Through its G4 domain, LAMA2 mediated the LCK-independent T cell activation by these toxins. Such a coreceptor role of LAMA2 involved a GPCR of the calcium-sensing receptor type because the selective antagonist NPS 2143 inhibited superantigen-induced T cell activation in vitro and delayed the effects of toxic shock syndrome in vivo. Collectively, our data identify LAMA2 as a target of antagonists of staphylococcal superantigens to treat toxic shock syndrome. PMID- 29335256 TI - Recombinant Human Vimentin Binds to P-Selectin and Blocks Neutrophil Capture and Rolling on Platelets and Endothelium. AB - Leukocyte adhesion to vascular endothelium and platelets is an early step in the acute inflammatory response. The initial process is mediated through P-selectin glycoprotein ligand-1 (PSGL-1) on leukocytes binding to platelets adhered to endothelium and the endothelium itself via P-selectin. Although these interactions are generally beneficial, pathologic inflammation may occur in undesirable circumstances, such as in acute lung injury (ALI) and ischemia and reperfusion injury. Therefore, the development of novel therapies to attenuate inflammation may be beneficial. In this article, we describe the potential benefit of using a recombinant human vimentin (rhVim) on reducing human leukocyte adhesion to vascular endothelium and platelets under shear stress. The addition of rhVim to whole blood and isolated neutrophils decreased leukocyte adhesion to endothelial and platelet monolayers. Furthermore, rhVim blocked neutrophil adhesion to P-selectin-coated surfaces. Binding assays showed that rhVim binds specifically to P-selectin and not to its counterreceptor, PSGL-1. Finally, in an endotoxin model of ALI in C57BL/6J mice, treatment with rhVim significantly decreased histologic findings of ALI. These data suggest a potential role for rhVim in attenuating inflammation through blocking P-selectin-PSGL-1 interactions. PMID- 29335258 TI - Cleavage of TL1A Differentially Regulates Its Effects on Innate and Adaptive Immune Cells. AB - TNF superfamily cytokines play major roles in the regulation of adaptive and innate immunity. The TNF superfamily cytokine TL1A (TNFSF15), through its cognate receptor DR3 (TNFRSF25), promotes T cell immunity to pathogens and directly costimulates group 2 and 3 innate lymphoid cells. Polymorphisms in the TNFSF15 gene are associated with the risk for various human diseases, including inflammatory bowel disease. Like other cytokines in the TNF superfamily, TL1A is synthesized as a type II transmembrane protein and cleaved from the plasma membrane by metalloproteinases. Membrane cleavage has been shown to alter or abrogate certain activities of other TNF family cytokines; however, the functional capabilities of membrane-bound and soluble forms TL1A are not known. Constitutive expression of TL1A in transgenic mice results in expansion of activated T cells and promotes intestinal hyperplasia and inflammation through stimulation of group 2 innate lymphoid cells. Through the generation of membrane restricted TL1A-transgenic mice, we demonstrate that membrane TL1A promotes expression of inflammatory cytokines in the lung, dependent upon DR3 expression on T cells. Soluble TL1A alone was unable to produce this phenotype but was still able to induce intestinal type 2 inflammation independently of T cells. These data suggest differential roles for membrane and soluble TL1A on adaptive and innate immune cells and have implications for the consequences of blocking these two forms of TL1A. PMID- 29335259 TI - Mental health needs our attention. PMID- 29335260 TI - An emergency response to the opioid overdose crisis in Canada: a regulated opioid distribution program. PMID- 29335262 TI - Addressing overestimation of the prevalence of depression based on self-report screening questionnaires. PMID- 29335261 TI - Childhood trajectories of peer victimization and prediction of mental health outcomes in midadolescence: a longitudinal population-based study. AB - BACKGROUND: Exposure to peer victimization is relatively common. However, little is known about its developmental course and its effect on impairment associated with mental illnesses. We aimed to identify groups of children following differential trajectories of peer victimization from ages 6 to 13 years and to examine predictive associations of these trajectories with mental health in adolescence. METHODS: Participants were members of the Quebec Longitudinal Study of Child Development, a prospective cohort of 2120 children born in 1997/98 who were followed until age 15 years. We included 1363 participants with self reported victimization from ages 6 to 13 years and data available on their mental health status at 15 years. RESULTS: We identified 3 trajectories of peer victimization. The 2 prevailing groups were participants with little or moderate exposure to victimization (441/1685 [26.2%] and 1000/1685 [59.3%], respectively); the third group (244 [14.5%]) had been chronically exposed to the most severe and long-lasting levels of victimization. The most severely victimized individuals had greater odds of reporting debilitating depressive or dysthymic symptoms (odds ratio [OR] 2.56, 95% confidence interval [CI] 1.27-5.17), debilitating generalized anxiety problems (OR 3.27, CI 1.64-6.51) and suicidality (OR 3.46, CI 1.53-7.81) at 15 years than those exposed to the lowest levels of victimization, after adjustment for sex, childhood mental health, family hardship and victimization perpetration. The association with suicidality remained significant after controlling for concurrent symptoms of depression or dysthymia and generalized anxiety problems. INTERPRETATION: Adolescents who were most severely victimized by peers had an increased risk of experiencing severe symptoms consistent with mental health problems. Given that peer victimization trajectories are established early on, interventions to reduce the risk of being victimized should start before enrolment in the formal school system. PMID- 29335263 TI - Exacerbation of psychosis triggered by a synthetic cannabinoid in a 70-year-old woman with Parkinson disease. PMID- 29335264 TI - Physician burnout. PMID- 29335265 TI - Contact lens-related Pseudomonas aeruginosa keratitis in a 49-year-old woman. PMID- 29335266 TI - Urgent care access: finding solutions that match causation. PMID- 29335268 TI - Fertility advocates protest criminal sanctions in assisted reproduction act. PMID- 29335267 TI - Peripartum suicide: additional considerations. PMID- 29335269 TI - Family doctors call for guaranteed access to EMR data for research and quality improvement. PMID- 29335270 TI - Doctors disappointed by income sprinkling changes. PMID- 29335271 TI - Health and social care: What's in a name? PMID- 29335272 TI - Complementary Value of Cardiac Magnetic Resonance Imaging and Positron Emission Tomography/Computed Tomography in the Assessment of Cardiac Sarcoidosis. AB - BACKGROUND: Although cardiac magnetic resonance (CMR) and positron emission tomography (PET) detect different pathological attributes of cardiac sarcoidosis (CS), the complementary value of these tests has not been evaluated. Our objective was to determine the value of combining CMR and PET in assessing the likelihood of CS and guiding patient management. METHODS AND RESULTS: In this retrospective study, we included 107 consecutive patients referred for evaluation of CS by both CMR and PET. Two experienced readers blinded to all clinical data reviewed CMR and PET images and categorized the likelihood of CS as no (<10%), possible (10%-50%), probable (50%-90%), or highly probable(>90%) based on predefined criteria. Patient management after imaging was assessed for all patients and across categories of increasing CS likelihood. A final clinical diagnosis for each patient was assigned based on a subsequent review of all available imaging, clinical, and pathological data. Among 107 patients (age, 55+/ 11 years; left ventricular ejection fraction, 43+/-16%), 91 (85%) had late gadolinium enhancement, whereas 82 (76%) had abnormal F18-fluorodeoxyglucose uptake on PET, suggesting active inflammation. Among the 91 patients with positive late gadolinium enhancement, 60 (66%) had abnormal F18 fluorodeoxyglucose uptake. When PET data were added to CMR, 48 (45%) patients were reclassified as having a higher or lower likelihood of CS, most of them (80%) being correctly reclassified when compared with the final diagnosis. Changes in immunosuppressive therapies were significantly more likely among patients with highly probable CS. CONCLUSIONS: Among patients with suspected CS, combining CMR and PET provides complementary value for estimating the likelihood of CS and guiding patient management. PMID- 29335273 TI - Establishing an Evidence-Based Method to Diagnose Cardiac Sarcoidosis: The Complementary Use of Cardiac Magnetic Resonance Imaging and FDG-PET. PMID- 29335274 TI - Doctors from overseas are missing out on dyslexia screening, researchers find. PMID- 29335275 TI - Interplay between ChREBP and SREBP-1c coordinates postprandial glycolysis and lipogenesis in livers of mice. AB - Lipogenesis in liver is highest in the postprandial state; insulin activates SREBP-1c, which transcriptionally activates genes involved in FA synthesis, whereas glucose activates carbohydrate-responsive element-binding protein (ChREBP), which activates both glycolysis and FA synthesis. Whether SREBP-1c and ChREBP act independently of one another is unknown. Here, we characterized mice with liver-specific deletion of ChREBP (L-Chrebp-/- mice). Hepatic ChREBP deficiency resulted in reduced mRNA levels of glycolytic and lipogenic enzymes, particularly in response to sucrose refeeding following fasting, a dietary regimen that elicits maximal lipogenesis. mRNA and protein levels of SREBP-1c, a master transcriptional regulator of lipogenesis, were also reduced in L-Chrebp-/- livers. Adeno-associated virus-mediated restoration of nuclear SREBP-1c in L Chrebp-/- mice normalized expression of a subset of lipogenic genes, while not affecting glycolytic genes. Conversely, ChREBP overexpression alone failed to support expression of lipogenic genes in the livers of mice lacking active SREBPs as a result of Scap deficiency. Together, these data show that SREBP-1c and ChREBP are both required for coordinated induction of glycolytic and lipogenic mRNAs. Whereas SREBP-1c mediates insulin's induction of lipogenic genes, ChREBP mediates glucose's induction of both glycolytic and lipogenic genes. These overlapping, but distinct, actions ensure that the liver synthesizes FAs only when insulin and carbohydrates are both present. PMID- 29335277 TI - Adverse effects of caffeinated energy drinks among youth and young adults in Canada: a Web-based survey. AB - BACKGROUND: Energy drink consumption has increased dramatically among young Canadians, with anecdotal evidence of adverse health effects. There is a lack of population-based studies to examine the prevalence of adverse events from energy drinks, particularly among young people. The current study sought to assess adverse events from energy drinks among a population-based sample of youth and young adults in Canada. METHODS: An online survey was conducted in 2015 with a national sample of youth (aged 12-17 yr) and young adults (aged 18-24 yr) recruited from a consumer panel. Respondents reported prior consumption of energy drinks as well as adverse outcomes, concurrent activities associated with the outcomes and whether medical attention was sought or considered. Adverse events from coffee were also assessed for comparison. Weighted analyses are reported. RESULTS: Of the 2055 respondents, 1516 (73.8%) reported having ever consumed an energy drink, and 1741 (84.7%) reported having ever consumed coffee (unweighted). Overall, 55.4% of respondents who had ever consumed an energy drink reported that they had experienced at least 1 adverse event, including fast heartbeat (24.7%), difficulty sleeping (24.1%), headache (18.3%), nausea/vomiting/diarrhea (5.1%), chest pain (3.6%) and seizures (0.2%); 3.1% had sought or had considered seeking medical help for an adverse event. The prevalence of reported adverse events was significantly greater among energy drink consumers than among coffee consumers (36.0%) (odds ratio [OR] 2.67 [95% confidence interval (CI) 2.01-2.56]), as was the proportion who reported seeking or considering seeking medical help for adverse events (3.1% v. 1.4%) (OR 2.18 [95% CI 1.39-3.41]). INTERPRETATION: More than half of youth and young adults who had consumed energy drinks reported adverse outcomes, some serious enough to warrant seeking medical help. The adverse outcomes were consistent with the physiologic effects of caffeine but were significantly more prevalent than with other sources of caffeine such as coffee, consistent with data from national adverse event databases. PMID- 29335278 TI - Coffee consumption and health: we need randomised controlled trials. PMID- 29335276 TI - Assigning function to natural allelic variation via dynamic modeling of gene network induction. AB - More and more natural DNA variants are being linked to physiological traits. Yet, understanding what differences they make on molecular regulations remains challenging. Important properties of gene regulatory networks can be captured by computational models. If model parameters can be "personalized" according to the genotype, their variation may then reveal how DNA variants operate in the network. Here, we combined experiments and computations to visualize natural alleles of the yeast GAL3 gene in a space of model parameters describing the galactose response network. Alleles altering the activation of Gal3p by galactose were discriminated from those affecting its activity (production/degradation or efficiency of the activated protein). The approach allowed us to correctly predict that a non-synonymous SNP would change the binding affinity of Gal3p with the Gal80p transcriptional repressor. Our results illustrate how personalizing gene regulatory models can be used for the mechanistic interpretation of genetic variants. PMID- 29335279 TI - Margaret McCartney: We need another vote. PMID- 29335282 TI - Treatment of Subclinical Atrial Fibrillation: Does One Plus One Always Equal Two? PMID- 29335283 TI - Confusion Around Therapeutic Temperature Management Hypothermia After In-Hospital Cardiac Arrest? PMID- 29335284 TI - Nitric Oxide Signaling and Atherothrombosis Redux: Evidence From Experiments of Nature and Implications for Therapy. PMID- 29335280 TI - Mapping protein interactions of sodium channel NaV1.7 using epitope-tagged gene targeted mice. AB - The voltage-gated sodium channel NaV1.7 plays a critical role in pain pathways. We generated an epitope-tagged NaV1.7 mouse that showed normal pain behaviours to identify channel-interacting proteins. Analysis of NaV1.7 complexes affinity purified under native conditions by mass spectrometry revealed 267 proteins associated with Nav1.7 in vivo The sodium channel beta3 (Scn3b), rather than the beta1 subunit, complexes with Nav1.7, and we demonstrate an interaction between collapsing-response mediator protein (Crmp2) and Nav1.7, through which the analgesic drug lacosamide regulates Nav1.7 current density. Novel NaV1.7 protein interactors including membrane-trafficking protein synaptotagmin-2 (Syt2), L-type amino acid transporter 1 (Lat1) and transmembrane P24-trafficking protein 10 (Tmed10) together with Scn3b and Crmp2 were validated by co-immunoprecipitation (Co-IP) from sensory neuron extract. Nav1.7, known to regulate opioid receptor efficacy, interacts with the G protein-regulated inducer of neurite outgrowth (Gprin1), an opioid receptor-binding protein, demonstrating a physical and functional link between Nav1.7 and opioid signalling. Further information on physiological interactions provided with this normal epitope-tagged mouse should provide useful insights into the many functions now associated with the NaV1.7 channel. PMID- 29335281 TI - High-throughput identification of RNA nuclear enrichment sequences. AB - In the post-genomic era, thousands of putative noncoding regulatory regions have been identified, such as enhancers, promoters, long noncoding RNAs (lncRNAs), and a cadre of small peptides. These ever-growing catalogs require high-throughput assays to test their functionality at scale. Massively parallel reporter assays have greatly enhanced the understanding of noncoding DNA elements en masse Here, we present a massively parallel RNA assay (MPRNA) that can assay 10,000 or more RNA segments for RNA-based functionality. We applied MPRNA to identify RNA-based nuclear localization domains harbored in lncRNAs. We examined a pool of 11,969 oligos densely tiling 38 human lncRNAs that were fused to a cytosolic transcript. After cell fractionation and barcode sequencing, we identified 109 unique RNA regions that significantly enriched this cytosolic transcript in the nucleus including a cytosine-rich motif. These nuclear enrichment sequences are highly conserved and over-represented in global nuclear fractionation sequencing. Importantly, many of these regions were independently validated by single molecule RNA fluorescence in situ hybridization. Overall, we demonstrate the utility of MPRNA for future investigation of RNA-based functionalities. PMID- 29335285 TI - Sodium and Potassium Intake in US Adults. PMID- 29335286 TI - Biomarker-Assisted Diagnosis of Acute Aortic Dissection. PMID- 29335287 TI - Identifying Candidates for Advanced Hemodynamic Support After Cardiac Arrest. PMID- 29335289 TI - Costly Medications Add Urgency to Physician-Patient Affordability Discussions. PMID- 29335290 TI - Young Male With Incessantly Wide Complex Tachycardia: What Is the Substrate of the Arrhythmia? PMID- 29335288 TI - Prognostic Value of High-Sensitivity Troponin T in Chronic Heart Failure: An Individual Patient Data Meta-Analysis. AB - BACKGROUND: Most patients with chronic heart failure have detectable troponin concentrations when evaluated by high-sensitivity assays. The prognostic relevance of this finding has not been clearly established so far. We aimed to assess high-sensitivity troponin assay for risk stratification in chronic heart failure through a meta-analysis approach. METHODS: Medline, EMBASE, Cochrane Library, and Scopus were searched in April 2017 by 2 independent authors. The terms were "troponin" AND "heart failure" OR "cardiac failure" OR "cardiac dysfunction" OR "cardiac insufficiency" OR "left ventricular dysfunction." Inclusion criteria were English language, clinical stability, use of a high sensitivity troponin assay, follow-up studies, and availability of individual patient data after request to authors. Data retrieved from articles and provided by authors were used in agreement with the PRISMA statement. The end points were all-cause death, cardiovascular death, and hospitalization for cardiovascular cause. RESULTS: Ten studies were included, reporting data on 11 cohorts and 9289 patients (age 66+/-12 years, 77% men, 60% ischemic heart failure, 85% with left ventricular ejection fraction <40%). High-sensitivity troponin T data were available for all patients, whereas only 209 patients also had high-sensitivity troponin I assayed. When added to a prognostic model including established risk markers (sex, age, ischemic versus nonischemic etiology, left ventricular ejection fraction, estimated glomerular filtration rate, and N-terminal fraction of pro-B-type natriuretic peptide), high-sensitivity troponin T remained independently associated with all-cause mortality (hazard ratio, 1.48; 95% confidence interval, 1.41-1.55), cardiovascular mortality (hazard ratio, 1.40; 95% confidence interval, 1.33-1.48), and cardiovascular hospitalization (hazard ratio, 1.42; 95% confidence interval, 1.36-1.49), over a median 2.4-year follow up (all P<0.001). High-sensitivity troponin T significantly improved risk prediction when added to a prognostic model including the variables above. It also displayed an independent prognostic value for all outcomes in almost all population subgroups. The area under the curve-derived 18 ng/L cutoff yielded independent prognostic value for the 3 end points in both men and women, patients with either ischemic or nonischemic etiology, and across categories of renal dysfunction. CONCLUSIONS: In chronic heart failure, high-sensitivity troponin T is a strong and independent predictor of all-cause and cardiovascular mortality, and of hospitalization for cardiovascular causes, as well. This biomarker then represents an additional tool for prognostic stratification. PMID- 29335292 TI - Letter by Madias Regarding Article, "Prosthetic Valve Endocarditis After Surgical Aortic Valve Replacement". PMID- 29335291 TI - Electronic Cigarette Smoking Increases Arterial Stiffness and Oxidative Stress to a Lesser Extent Than a Single Conventional Cigarette: An Acute and Chronic Study. PMID- 29335293 TI - Response by Glaser et al to Letter Regarding Article, "Prosthetic Valve Endocarditis After Surgical Aortic Valve Replacement". PMID- 29335294 TI - Letter by Jin-shan and Xue-bin Regarding Article, "Prospective Study of Adenosine on Atrioventricular Nodal Conduction in Pediatric and Young Adult Patients After Heart Transplantation". PMID- 29335295 TI - Letter by Ye et al Regarding Article, "Prospective Study of Adenosine on Atrioventricular Nodal Conduction in Pediatric and Young Adult Patients After Heart Transplantation". PMID- 29335296 TI - Digital healthcare: regulating the revolution. PMID- 29335297 TI - The apps attempting to transfer NHS 111 online. PMID- 29335298 TI - Crystal structure of IspF from Bacillus subtilis and absence of protein complex assembly amongst IspD/IspE/IspF enzymes in the MEP pathway. AB - 2-C-Methyl-d-erythritol 2,4-cyclodiphosphate synthase (IspF) is a key enzyme in the 2-C-Methyl-d-erythritol-4-phosphate (MEP) pathway of isoprenoid biosynthesis. This enzyme catalyzes the 4-diphosphocytidyl-2-C-methyl-d-erythritol 2-phosphate (CDPME2P) to 2-C-methyl-d-erythritol 2,4-cyclodiphosphate (MEcDP) with concomitant release of cytidine 5'-diphospate (CMP). Bacillus subtilis is a potential host cell for the production of isoprenoids, but few studies are performed on the key enzymes of MEP pathway in B. subtilis In this work, the high resolution crystal structures of IspF in native and complex with CMP from B. subtilis have been determined. Structural comparisons indicate that there is a looser packing of the subunits of IspF in B. subtilis, whereas the solvent accessible surface of its active pockets is smaller than that in Escherichia coli. Meanwhile, the protein-protein associations of 2-C-Methyl-d-erythritol-4 phosphatecytidyltransferase (IspD), CDPME kinase (IspE) and IspF from B. subtilis and E. coli, which catalyze three consecutive steps in the MEP pathway, are analyzed by native gel shift and size exclusion chromatography methods. The data here show that protein complex assembly is not detectable. These results will be useful for isoprenoid biosynthesis by metabolic engineering. PMID- 29335299 TI - HOTAIR contributes to cell proliferation and metastasis of cervical cancer via targetting miR-23b/MAPK1 axis. AB - The long non-coding RNA (lncRNA) HOX transcript antisense RNA (HOTAIR) has been found to be overexpressed in many human malignancies and involved in tumor progression and metastasis. Although the downstream target through which HOTAIR modulates tumor metastasis is not well-known, evidence suggests that miR-23b might be involved in this event. In the present study, the expressions of HOTAIR and miR-23b were detected by real-time PCR in 33 paired cervical cancer tissue samples and cervical cell lines. The effects of HOTAIR on the expressions of miR 23b and mitogen-activated protein kinase 1 (MAPK1) were studied by overexpression and RNAi approaches. We found that HOTAIR expression was significantly increased in cervical cancer cells and tissues. In contrast, the expression of miR-23b was obviously decreased. We further demonstrated that HOTAIR knockdown promoted apoptosis and inhibited cell proliferation and invasion in vitro and in vivo Moreover, our data indicated that HOTAIR may competitively bind miR-23b and modulate the expression of MAPK1 indirectly in cervical cancer cells. Taken together, our study has identified a novel pathway through which HOTAIR exerts its oncogenic role, and provided a molecular basis for potential applications of HOTAIR in the prognosis and treatment of cervical cancer. PMID- 29335303 TI - Trump administration allows states to deny Medicaid to unemployed people. PMID- 29335301 TI - Mobilization of a splicing factor through a nuclear kinase-kinase complex. AB - The splicing of mRNA is dependent on serine-arginine (SR) proteins that are mobilized from membrane-free, nuclear speckles to the nucleoplasm by the Cdc2 like kinases (CLKs). This movement is critical for SR protein-dependent assembly of the macromolecular spliceosome. Although CLK1 facilitates such trafficking through the phosphorylation of serine-proline dipeptides in the prototype SR protein SRSF1, an unrelated enzyme known as SR protein kinase 1 (SRPK1) performs the same function but does not efficiently modify these dipeptides in SRSF1. We now show that the ability of SRPK1 to mobilize SRSF1 from speckles to the nucleoplasm is dependent on active CLK1. Diffusion from speckles is promoted by the formation of an SRPK1-CLK1 complex that facilitates dissociation of SRSF1 from CLK1 and enhances the phosphorylation of several serine-proline dipeptides in this SR protein. Down-regulation of either kinase blocks EGF-stimulated mobilization of nuclear SRSF1. These findings establish a signaling pathway that connects SRPKs to SR protein activation through the associated CLK family of kinases. PMID- 29335300 TI - Extracellular ATP activates store-operated Ca2+ entry in white adipocytes: functional evidence for STIM1 and ORAI1. AB - In the present study, we have applied ratiometric measurements of intracellular Ca2+ concentrations ([Ca2+]i) to show that extracellularly applied ATP (adenosine triphosphate) (100 uM) stimulates store-operated Ca2+ entry (SOCE) in 3T3-L1 adipocytes. ATP produced a rapid increase in [Ca2+]i consisting of an initial transient elevation followed by a sustained elevated phase that could be observed only in the presence of extracellular Ca2+ Gene expression data and [Ca2+]i recordings with uridine-5'-triphosphate or with the phospholipase C (PLC) inhibitor U73122 demonstrated the involvement of purinergic P2Y2 receptors and the PLC/inositol trisphosphate pathway. The [Ca2+]i elevation produced by reintroduction of a Ca2+-containing intracellular solution to adipocytes exposed to ATP in the absence of Ca2+ was diminished by known SOCE antagonists. The chief molecular components of SOCE, the stromal interaction molecule 1 (STIM1) and the calcium release-activated calcium channel protein 1 (ORAI1), were detected at the mRNA and protein level. Moreover, SOCE was largely diminished in cells where STIM1 and/or ORAI1 had been silenced by small interfering (si)RNA. We conclude that extracellular ATP activates SOCE in white adipocytes, an effect predominantly mediated by STIM1 and ORAI1. PMID- 29335304 TI - Differentiating between acute heart failure and acute respiratory distress syndrome. PMID- 29335305 TI - Orolingual and abdominal angioedema post thrombolysis and thrombectomy. PMID- 29335307 TI - Editors' note: A phase 3 trial of IV immunoglobulin for Alzheimer disease. PMID- 29335306 TI - Pearls & Oy-sters: Family history of Huntington disease disguised a case of dentatorubral-pallidoluysian atrophy. PMID- 29335308 TI - Reader response: A phase 3 trial of IV immunoglobulin for Alzheimer disease. PMID- 29335309 TI - Author response: A phase 3 trial of IV immunoglobulin for Alzheimer disease. PMID- 29335310 TI - Editors' note: Clinical Reasoning: Labyrinthine hemorrhage: An unusual etiology for peripheral vertigo. PMID- 29335311 TI - Reader response: Clinical Reasoning: Labyrinthine hemorrhage: An unusual etiology for peripheral vertigo. PMID- 29335312 TI - Author response: Clinical Reasoning: Labyrinthine hemorrhage: An unusual etiology for peripheral vertigo. PMID- 29335313 TI - Teaching NeuroImages: Gasperini syndrome. PMID- 29335314 TI - Teaching Video NeuroImages: Electromyographic variation in stiff-person syndrome. PMID- 29335315 TI - Teaching Video NeuroImages: Oculogyric crisis in treated Parkinson disease. PMID- 29335316 TI - Integrated lipid clinics for adults and children with familial hypercholesterolaemia. PMID- 29335317 TI - Reduced N-Type Ca2+ Channels in Atrioventricular Ganglion Neurons Are Involved in Ventricular Arrhythmogenesis. AB - BACKGROUND: Attenuated cardiac vagal activity is associated with ventricular arrhythmogenesis and related mortality in patients with chronic heart failure. Our recent study has shown that expression of N-type Ca2+ channel alpha-subunits (Cav2.2-alpha) and N-type Ca2+ currents are reduced in intracardiac ganglion neurons from rats with chronic heart failure. Rat intracardiac ganglia are divided into the atrioventricular ganglion (AVG) and sinoatrial ganglion. Ventricular myocardium receives projection of neuronal terminals only from the AVG. In this study we tested whether a decrease in N-type Ca2+ channels in AVG neurons contributes to ventricular arrhythmogenesis. METHODS AND RESULTS: Lentiviral Cav2.2-alpha shRNA (2 MUL, 2*107 pfu/mL) or scrambled shRNA was in vivo transfected into rat AVG neurons. Nontransfected sham rats served as controls. Using real-time single-cell polymerase chain reaction and reverse-phase protein array, we found that in vivo transfection of Cav2.2-alpha shRNA decreased expression of Cav2.2-alpha mRNA and protein in rat AVG neurons. Whole-cell patch clamp data showed that Cav2.2-alpha shRNA reduced N-type Ca2+ currents and cell excitability in AVG neurons. The data from telemetry electrocardiographic recording demonstrated that 83% (5 out of 6) of conscious rats with Cav2.2-alpha shRNA transfection had premature ventricular contractions (P<0.05 versus 0% of nontransfected sham rats or scrambled shRNA-transfected rats). Additionally, an index of susceptibility to ventricular arrhythmias, inducibility of ventricular arrhythmias evoked by programmed electrical stimulation, was higher in rats with Cav2.2-alpha shRNA transfection compared with nontransfected sham rats and scrambled shRNA-transfected rats. CONCLUSIONS: A decrease in N-type Ca2+ channels in AVG neurons attenuates vagal control of ventricular myocardium, thereby initiating ventricular arrhythmias. PMID- 29335318 TI - Longitudinal Effect of Stroke on Cognition: A Systematic Review. AB - BACKGROUND: Stroke is associated with an increased risk of dementia; however, the impact of stroke on cognition has been found to be variable, such that stroke survivors can show decline, remain stable, or revert to baseline cognitive functioning. Knowing the natural history of cognitive impairment after stroke is important for intervention. The aim of this systematic review is to investigate the longitudinal course of cognitive function in stroke survivors. METHODS AND RESULTS: Three electronic databases (Medline, Embase, PsycINFO) were searched using OvidSP from inception to July 15, 2016. Longitudinal studies with >=2 time points of cognitive assessment after stroke were included. In total, 5952 articles were retrieved and 14 were included. There was a trend toward significant deterioration in cognitive test scores in stroke survivors (8 studies). Cognitive stability (3 studies) and improvement (3 studies) were also demonstrated, although follow-up time tended to be shorter in these studies. Variables associated with impairment included age, ethnicity, premorbid cognitive performance, depression, stroke location, and history of previous stroke. Associations with APOE*E4 (apolipoprotein E with the E4 allele) allele status and sex were mixed. CONCLUSIONS: Stroke is associated with an increased risk of cognitive decline, but cognitive decline is not a consequence. Factors associated with decline, such as sociodemographic status, health-related comorbidity, stroke history, and clinical features could be used in models to predict future risk of dementia after stroke. A risk model approach could identify patients at greatest risk for timely intervention to reduce the frequency or delay the onset of poststroke cognitive impairment and dementia. PMID- 29335320 TI - January 15th Question. PMID- 29335319 TI - Preterm Delivery and Future Risk of Maternal Cardiovascular Disease: A Systematic Review and Meta-Analysis. AB - BACKGROUND: Preterm delivery (<37 weeks gestational age) affects 11% of all pregnancies, but data are conflicting whether preterm birth is associated with long-term adverse maternal cardiovascular outcomes. We aimed to systematically evaluate and summarize the evidence on the relationship between preterm birth and future maternal risk of cardiovascular diseases. METHODS AND RESULTS: A systematic search of MEDLINE and EMBASE was performed to identify relevant studies that evaluated the association between preterm birth and future maternal risk of composite cardiovascular disease, coronary heart disease, stroke, and death caused by cardiovascular or coronary heart disease and stroke. We quantified the associations using random effects meta-analysis. Twenty-one studies with over 5.8 million women, including over 338 000 women with previous preterm deliveries, were identified. Meta-analysis of studies that adjusted for potential confounders showed that preterm birth was associated with an increased risk of maternal future cardiovascular disease (risk ratio [RR] 1.43, 95% confidence interval [CI], 1.18, 1.72), cardiovascular disease death (RR 1.78, 95% CI, 1.42, 2.21), coronary heart disease (RR 1.49, 95% CI, 1.38, 1.60), coronary heart disease death (RR 2.10, 95% CI, 1.87, 2.36), and stroke (RR 1.65, 95% CI, 1.51, 1.79). Sensitivity analysis showed that the highest risks occurred when the preterm deliveries occurred before 32 weeks gestation or were medically indicated. CONCLUSIONS: Preterm delivery is associated with an increase in future maternal adverse cardiovascular outcomes, including a 2-fold increase in deaths caused by coronary heart disease. These findings support the assessment of preterm delivery in cardiovascular risk assessment in women. PMID- 29335321 TI - Effectiveness and Cost of Weekly Recombinant Tissue Plasminogen Activator Hemodialysis Catheter Locking Solution. AB - BACKGROUND AND OBJECTIVES: Evidence to guide hemodialysis catheter locking solutions is limited. We aimed to assess effectiveness and cost of recombinant tissue plasminogen activator (rt-PA) once per week as a locking solution, compared with thrice weekly citrate or heparin, in patients at high risk of complications. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We used a prospective design and pre-post comparison in three sites across Canada. Pre-post comparisons were conducted using multilevel mixed effects regression models accounting for cluster with site and potential enrollment of patients more than once. In the pre period, catheter malfunction was managed as per site-specific standard of care. The intervention in the post period was once weekly rt-PA as a locking solution (with citrate or heparin used for other sessions). The primary outcome was rate of rt-PA use for treatment of catheter malfunction. Secondary outcomes included rates of bacteremia, management of catheter malfunction, and cost. RESULTS: There were 374 patients (mean age 68 years; 52% men) corresponding to 506 enrollments. Mean length of enrollment was 200 days (SD 119) in the pre period and 187 days (SD 101) in the post period. There was a significant decline in rate of rt-PA use for treatment of catheter malfunction in the post compared with pre period (adjusted incidence rate ratio, 0.39; 95% confidence interval, 0.30 to 0.52); however, there was no difference in the rate of bacteremia, or catheter stripping or removal/replacement. The increase in mean total health care cost in the post period was CAD$962 per enrollment, largely related to costs of rt-PA as a locking solution. CONCLUSIONS: Once weekly rt-PA as a catheter locking solution was associated with a reduction in rt-PA use for treatment of catheter malfunction. Our results showing a reduction in rescue rt-PA use are consistent with a prior randomized trial, although we did not observe a reduction in bacteremia or catheter stripping/removal and did observe an increased incremental cost of this strategy primarily accounted for by the cost of the rt-PA. PMID- 29335322 TI - Identifying patterns of communication in patients attending memory clinics: a systematic review of observations and signs with potential diagnostic utility. AB - BACKGROUND: Subjective cognitive complaints are commonly encountered in primary care and often result in memory clinic referral. However, meta-analyses have shown that such concerns do not consistently correspond to objective memory impairment or predict future dementia. Memory clinic referrals are increasing, with greater proportions of patients attending who do not have dementia. Studies of interaction during memory clinic assessments have identified conversational profiles that can differentiate between dementia and functional disorders of memory. To date, studies exploring communication patterns for the purpose of diagnosis have not been reviewed. Such profiles could reduce unnecessary investigations in patients without dementia. AIM: To identify and collate signs and observable features of communication, which could clinically differentiate between dementia and functional disorders of memory. DESIGN AND SETTING: This was a systematic review and synthesis of evidence from studies with heterogeneous methodologies. METHOD: A qualitative, narrative description and typical memory clinic assessment were employed as a framework. RESULTS: Sixteen studies met the criteria for selection. Two overarching themes emerged: 1) observable clues to incapacity and cognitive impairment during routine assessment and interaction, and 2) strategies and accounts for loss of abilities in people with dementia. CONCLUSION: Whether the patient attends with a companion, how they participate, give autobiographical history, demonstrate working memory, and make qualitative observations during routine cognitive testing are all useful in building a diagnostic picture. Future studies should explore these phenomena in larger populations, over longer periods, include dementia subtypes, and develop robust definitions of functional memory disorders to facilitate comparison. PMID- 29335323 TI - Antibiotic prescribing quality for children in primary care: an observational study. AB - BACKGROUND: Overuse and inappropriate prescribing of antibiotics is driving antibiotic resistance. GPs often prescribe antibiotics for upper respiratory tract infections (URTIs) in young children despite their marginal beneficial effects. AIM: To assess the quality of antibiotic prescribing for common infections in young children attending primary care and to investigate influencing factors. DESIGN AND SETTING: An observational, descriptive analysis, including children attending primary care sites in England and Wales. METHOD: The Diagnosis of Urinary Tract infection in Young children study collected data on 7163 children aged <5 years, presenting to UK primary care with an acute illness (<28 days). Data were compared with the European Surveillance of Antimicrobial Consumption Network (ESAC-Net) disease-specific quality indicators to assess prescribing for URTIs, tonsillitis, and otitis media, against ESAC-Net proposed standards. Non-parametric trend tests and chi2 tests assessed trends and differences in prescribing by level of deprivation, site type, and demographics. RESULTS: Prescribing rates fell within the recommendations for URTIs but exceeded the recommended limits for tonsillitis and otitis media. The proportion of children receiving the recommended antibiotic was below standards for URTIs and tonsillitis, but within the recommended limits for otitis media. Prescribing rates increased as the level of deprivation decreased for all infections (P<0.05), and increased as the age of the child increased for URTIs and tonsillitis (P<0.05). There were no other significant trends or differences. CONCLUSION: The quality of antibiotic prescribing in this study was mixed and highlights the scope for future improvements. There is a need to assess further the quality of disease-specific antibiotic prescribing in UK primary care settings using data representative of routine clinical practice. PMID- 29335324 TI - Prevalence of primary aldosteronism in primary care: a cross-sectional study. AB - BACKGROUND: Primary aldosteronism (PA) is the most frequent cause of secondary hypertension. Reported prevalences of PA vary considerably because of a large heterogeneity in study methodology. AIM: To examine the proportion of patients with PA among patients with newly diagnosed, never treated hypertension. DESIGN AND SETTING: A cross-sectional study set in primary care. METHOD: GPs measured aldosterone and renin in adult patients with newly diagnosed, never treated hypertension. Patients with elevated aldosterone-to-renin ratio and increased plasma aldosterone concentration underwent a saline infusion test to confirm or exclude PA. The source population was meticulously assessed to detect possible selection bias. RESULTS: Of 3748 patients with newly diagnosed hypertension, 343 patients were screened for PA. In nine out of 74 patients with an elevated aldosterone-to-renin ratio and increased plasma aldosterone concentration the diagnosis of PA was confirmed by a saline infusion test, resulting in a prevalence of 2.6% (95% confidence interval = 1.4 to 4.9). All patients with PA were normokalaemic and 8 out of 9 patients had sustained blood pressure >150/100 mmHg. Screened patients were younger (P<0.001) or showed higher blood pressure (P<0.001) than non-screened patients. CONCLUSION: In this study a prevalence of PA of 2.6% in a primary care setting was established, which is lower than estimates reported from other primary care studies so far. This study supports the screening strategy as recommended by the Endocrine Society Clinical Practice Guideline. The low proportion of screened patients (9.2%), of the large cohort of eligible patients, reflects the difficulty of conducting prevalence studies in primary care clinical practice. PMID- 29335325 TI - Population and patient factors affecting emergency department attendance in London: retrospective cohort analysis of linked primary and secondary care records. AB - BACKGROUND: Population factors, including social deprivation and morbidity, predict the use of emergency departments (EDs). AIM: To link patient-level primary and secondary care data to determine whether the association between deprivation and ED attendance is explained by multimorbidity and other clinical factors in the GP record. DESIGN AND SETTING: Retrospective cohort study based in East London. METHOD: Primary care demographic, consultation, diagnostic, and clinical data were linked with ED attendance data. GP Patient Survey (GPPS) access questions were linked to practices. RESULTS: Adjusted multilevel analysis for adults showed a progressive rise in ED attendance with increasing numbers of long-term conditions (LTCs). Comparing two LTCs with no conditions, the odds ratio (OR) is 1.28 (95% confidence interval [CI] = 1.25 to 1.31); comparing four or more conditions with no conditions, the OR is 2.55 (95% CI = 2.44 to 2.66). Increasing annual GP consultations predicted ED attendance: comparing zero with more than two consultations, the OR is 2.44 (95% CI = 2.40 to 2.48). Smoking (OR 1.30, 95% CI = 1.28 to 1.32), being housebound (OR 2.01, 95% CI = 1.86 to 2.18), and age also predicted attendance. Patient-reported access scores from the GPPS were not a significant predictor. For children, younger age, male sex, white ethnicity, and higher GP consultation rates predicted attendance. CONCLUSION: Using patient-level data rather than practice-level data, the authors demonstrate that the burden of multimorbidity is the strongest clinical predictor of ED attendance, which is independently associated with social deprivation. Low use of the GP surgery is associated with low attendance at ED. Unlike other studies, the authors found that adult patient experience of GP access, reported at practice level, did not predict use. PMID- 29335326 TI - Attendance of routine childcare visits in primary care for children of mothers with depression: a nationwide population-based cohort study. AB - BACKGROUND: Depression is a common and potentially debilitating illness worldwide. Attendance to routine childcare appointments is a key point of interest in the effort to improve the health and care for families facing depression. AIM: To evaluate the association between maternal depression and offspring non-attendance to the Danish childcare and vaccination programme (CCP) for children from 0-5 years of age. The CCP consists of seven separate visits and several vaccinations. To investigate if exposure to recent and previous depression may affect attendance differently. DESIGN AND SETTING: Population based cohort study using Danish nationwide registers. METHOD: Participants were all live-born children (n = 853 315) in Denmark in the period from 1 January 2000 until 31 August 2013, and their mothers. The outcome of interest was non attendance of each one of the seven scheduled childcare visits and two vaccination entities in the CCP. Exposure was maternal (both previous and recent) depression. All information was obtained from Danish national registries. RESULTS: The risk of not attending CCP was higher for children of mothers with depression. For children of mothers with previous depression, the relative risk (RR) was 1.01 (95% confidence interval [CI] = 0.98 to 1.03) at the 5-week childcare visit, and 1.12 (95% CI = 1.09 to 1.14) at the 5-year childcare visit. For children of mothers with recent depression, the RR was 1.07 (95% CI = 1.03 to 1.13) at the 5-week visit, and 1.15 (95% CI = 1.13 to 1.17) at the 5-year visit. Furthermore, the risk of missing at least four of the seven childcare visits was higher for children of females with maternal depression (RR = 1.16, 95% CI = 1.13 to 1.19). CONCLUSION: Maternal depression seems to compromise CCP attendance. These findings suggest a need for careful clinical attention to these vulnerable families, even years after a diagnosis of depression. PMID- 29335327 TI - GPs' experiences of diagnosing and managing childhood eczema: a qualitative study in primary care. AB - BACKGROUND: Eczema is common among children, and in the UK the majority are managed by GPs. The most common cause of poor disease control is incorrect use of topical treatments. There is a lack of research into the challenges faced by GPs in diagnosing and managing this condition. AIM: To explore the experiences of GPs in assessing and managing children with eczema. DESIGN AND SETTING: Qualitative study in primary care in England. METHOD: Semi-structured interviews with 15 GPs were audiorecorded, transcribed verbatim, and analysed thematically using the framework method. RESULTS: GPs described a paucity of dermatology training. Although most GPs were confident diagnosing uncomplicated eczema, they reported using a trial-and-error approach to prescribing emollients, and were uncertain about quantities of topical treatments to issue. Mild and moderate potency topical corticosteroids (TCS) were commonly used, but most GPs lacked confidence in recommending potent TCS, and viewed parents or carers to be fearful of using all strengths of TCS. GPs perceived adherence to treatments to be low, but provision of information to support self-care was variable. Routine review of medication use or disease control was uncommon, which GPs attributed to service constraints. Participants' views on the causes and management of eczema were perceived to be at odds with parents and carers, who were said to be overly focused on an underlying cause, such as allergy. CONCLUSION: GP uncertainty in managing eczema, lack of routine information and review, and perceived dissonance with parents around causation and management may be contributing to low concordance with treatments. PMID- 29335328 TI - Walking prescription of 10 000 steps per day in patients with type 2 diabetes mellitus: a randomised trial in Nigerian general practice. AB - BACKGROUND: In clinical practice, translating the benefits of a sustained physically active lifestyle on glycaemic control in patients with type 2 diabetes mellitus (T2DM) is difficult. A walking prescription may be an effective alternative. AIM: To examine the effect of a 10 000 steps per day prescription on glycaemic control of patients with T2DM. DESIGN AND SETTING: Forty-six adults with T2DM attending a general outpatient clinic were randomised into two equal groups. The intervention group was given goals to accumulate 10 000 steps per day for 10 weeks, whereas the control group maintained their normal activity habits. METHOD: Daily step count was measured with waist-mounted pedometer and baseline and endline average steps per day. Glycosylated haemoglobin (HbA1c), anthropometric, and cardiovascular measurements were also obtained. An intention to-treat analysis was done. RESULTS: The average baseline step count was 4505 steps per day for all participants, and the average step count in the intervention group for the last 4 weeks of the study period was higher by 2913 steps per day (95% confidence interval [CI] = 1274 to 4551, F (2, 37.7) = 18.90, P<0.001). Only 6.1% of the intervention group participants achieved the 10 000 steps per day goal. The mean baseline HbA1c was 6.6% (range = 5.3 to 9.0). Endline HbA1c was lower in the intervention group than in the control group (mean difference -0.74%, 95% CI = -1.32 to -0.02, F = 12.92, P = 0.015) after adjusting for baseline HbA1c. There was no change in anthropometric and cardiovascular indices. CONCLUSION: Adherence to 10 000 steps per day prescription is low but may still be associated with improved glycaemic control in T2DM. Motivational strategies for better adherence would improve glycaemic control. PMID- 29335329 TI - Relocating patients from a specialist homeless healthcare centre to general practices: a multi-perspective study. AB - BACKGROUND: The relocation of formerly homeless patients eligible to transfer from a specialist homeless healthcare centre (SHHC) to mainstream general practices is key to patient integration in the local community. Failure to transition patients conferring eligibility for relocation may also negatively impact on SHHC service delivery. AIM: To explore barriers and facilitators of relocation from the perspectives of formerly homeless patients and healthcare staff involved in their care. DESIGN AND SETTING: Qualitative semi-structured face-to-face and telephone interviews conducted in the north east of Scotland. METHOD: Participants were patients and healthcare staff including GPs, nurses, substance misuse workers, administrative, and local community pharmacy staff recruited from one SHHC, two mainstream general practices, and four community pharmacies. Interview schedules based on the 14 domains of the Theoretical Domains Framework (TDF) were drafted. Transcripts of the interviews were analysed by two independent researchers using a framework approach. RESULTS: Seventeen patients and 19 staff participated. Key barriers and facilitators aligned to TDF domains included: beliefs about consequences regarding relocation; patient intention to relocate; environmental context and resources in relation to the care of the patients and assessing patient eligibility; patient skills in relation to integration; social and professional role and identity of staff and patients; and emotional attachment to the SHHC. CONCLUSION: Implementation of services, which promote relocation and integration, may optimise patient relocation from SHHCs to mainstream general practices. These include peer support networks for patients, better information provision on the relocation process, and supporting patients in the journey of identifying and adjusting to mainstream practices. PMID- 29335330 TI - Stroke Incidence and Outcomes in Northeastern Greece: The Evros Stroke Registry. AB - BACKGROUND AND PURPOSE: Data are scarce on both stroke incidence rates and outcomes in Greece and in rural areas in particular. We performed a prospective population-based study evaluating the incidence of first-ever stroke in the Evros prefecture, a region of a total 147 947 residents located in North Eastern Greece. METHODS: Adult patients with first-ever stroke were registered during a 24-month period (2010-2012) and followed up for 12 months. To compare our stroke incidence with that observed in other studies, we standardized our incidence rate data according to the European Standard Population, World Health Organization, and Segi population. We also applied criteria of data quality proposed by the Monitoring Trends and Determinants in Cardiovascular Disease project. Stroke diagnosis and classification were performed using World Health Organization criteria on the basis of neuroimaging and autopsy data. RESULTS: We prospectively documented 703 stroke cases (mean age: 75+/-12 years; 52.8% men; ischemic stroke: 80.8%; intracerebral hemorrhage: 11.8%; subarachnoid hemorrhage: 4.4%; undefined: 3.0%) with a total follow-up time of 119 805 person-years. The unadjusted and European Standard Population-adjusted incidences of all strokes were 586.8 (95% confidence interval [CI], 543.4-630.2) and 534.1 (95% CI, 494.6-573.6) per 100 000 person-years, respectively. The unadjusted incidence rates for ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage were 474.1 (95% CI, 435-513), 69.3 (95% CI, 54-84), and 25.9 (95% CI, 17-35) per 100 000 person years, respectively. The corresponding European Standard Population-adjusted incidence rates per 100 000 person-years were 425.9 (95% CI, 390.9-460.9), 63.3 (95% CI, 49.7-76.9), and 25.8 (95% CI, 16.7-34.9) for ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage, respectively. The overall 28-day case fatality rate was 21.3% (95% CI, 18.3%-24.4%) for all strokes and was higher in hemorrhagic strokes than ischemic stroke (40.4%, 95% CI, 31.3%-49.4% versus 16.2%, 95% CI, 13.2%-19.2%). CONCLUSIONS: This is the largest to date population-based study in Greece documenting one of the highest stroke incidences ever reported in South Europe, highlighting the need for efficient stroke prevention and treatment strategies in Northeastern Greece. PMID- 29335332 TI - Historical Slavery and Modern-Day Stroke Mortality in the United States Stroke Belt. PMID- 29335331 TI - Cerebrovascular Disease Knowledge Portal: An Open-Access Data Resource to Accelerate Genomic Discoveries in Stroke. PMID- 29335333 TI - Predictors of In-Hospital Death After Aneurysmal Subarachnoid Hemorrhage: Analysis of a Nationwide Database (Swiss SOS [Swiss Study on Aneurysmal Subarachnoid Hemorrhage]). AB - BACKGROUND AND PURPOSE: To identify predictors of in-hospital mortality in patients with aneurysmal subarachnoid hemorrhage and to estimate their impact. METHODS: Retrospective analysis of prospective data from a nationwide multicenter registry on all aneurysmal subarachnoid hemorrhage cases admitted to a tertiary neurosurgical department in Switzerland (Swiss SOS [Swiss Study on Aneurysmal Subarachnoid Hemorrhage]; 2009-2015). Both clinical and radiological independent predictors of in-hospital mortality were identified, and their effect size was determined by calculating adjusted odds ratios (aORs) using multivariate logistic regression. Survival was displayed using Kaplan-Meier curves. RESULTS: Data of n=1866 aneurysmal subarachnoid hemorrhage patients in the Swiss SOS database were available. In-hospital mortality was 20% (n=373). In n=197 patients (10.6%), active treatment was discontinued after hospital admission (no aneurysm occlusion attempted), and this cohort was excluded from analysis of the main statistical model. In the remaining n=1669 patients, the rate of in-hospital mortality was 13.9% (n=232). Strong independent predictors of in-hospital mortality were rebleeding (aOR, 7.69; 95% confidence interval, 3.00-19.71; P<0.001), cerebral infarction attributable to delayed cerebral ischemia (aOR, 3.66; 95% confidence interval, 1.94-6.89; P<0.001), intraventricular hemorrhage (aOR, 2.65; 95% confidence interval, 1.38-5.09; P=0.003), and new infarction post-treatment (aOR, 2.57; 95% confidence interval, 1.43-4.62; P=0.002). CONCLUSIONS: Several-and among them modifiable-factors seem to be associated with in-hospital mortality after aneurysmal subarachnoid hemorrhage. Our data suggest that strategies aiming to reduce the risk of rebleeding are most promising in patients where active treatment is initially pursued. CLINICAL TRIAL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT03245866. PMID- 29335334 TI - Diagnosis of Cerebral Amyloid Angiopathy: Evolution of the Boston Criteria. PMID- 29335335 TI - Closure of Patent Foramen Ovale Versus Medical Therapy in Patients With Cryptogenic Stroke or Transient Ischemic Attack: Updated Systematic Review and Meta-Analysis. AB - BACKGROUND AND PURPOSE: Previous systematic reviews and meta-analyses compared the efficacy and safety of patent foramen ovale (PFO) closure versus medical treatment in patients with cryptogenic stroke or transient ischemic attack (TIA). Recently, new evidence from randomized trials became available. METHODS: We searched PubMed until September 24, 2017, for trials comparing PFO closure with medical treatment in patients with cryptogenic stroke/TIA using the items: stroke or cerebrovascular accident or TIA and patent foramen ovale or paradoxical embolism and trial or study. RESULTS: Among 851 identified articles, 5 were eligible. In 3627 patients with 3.7-year mean follow-up, there was significant difference in ischemic stroke recurrence (0.53 versus 1.1 per 100 patient-years, respectively; odds ratio [OR], 0.43; 95% confidence intervals (CI), 0.21-0.90; relative risk reduction, 50.5%; absolute risk reduction, 2.11%; and number needed to treat to prevent 1 event, 46.5 for 3.7 years). There was no significant difference in TIAs (0.78 versus 0.98 per 100 patient-years, respectively; OR, 0.80; 95% CI, 0.53-1.19) and all-cause mortality (0.18 versus 0.23 per 100 patient-years, respectively; OR, 0.73; 95% CI, 0.34-1.56). New-onset atrial fibrillation occurred more frequently in the PFO closure arm (1.3 versus 0.25 per 100 patient-years, respectively; OR, 5.15; 95% CI, 2.18-12.15) and resolved in 72% of cases within 45 days, whereas rates of myocardial infarction (0.12 versus 0.09 per 100 patient-years, respectively; OR, 1.22; 95% CI, 0.25-5.91) and any serious adverse events (7.3 versus 7.3 per 100 patient-years, respectively; OR, 1.07; 95% CI, 0.92-1.25) were similar. CONCLUSIONS: In patients with cryptogenic stroke/TIA and PFO who have their PFO closed, ischemic stroke recurrence is less frequent compared with patients receiving medical treatment. Atrial fibrillation is more frequent but mostly transient. There is no difference in TIA, all-cause mortality, or myocardial infarction. PMID- 29335336 TI - Periodontal Disease, Regular Dental Care Use, and Incident Ischemic Stroke. AB - BACKGROUND AND PURPOSE: Periodontal disease is independently associated with cardiovascular disease. Identification of periodontal disease as a risk factor for incident ischemic stroke raises the possibility that regular dental care utilization may reduce the stroke risk. METHODS: In the ARIC (Atherosclerosis Risk in Communities) study, pattern of dental visits were classified as regular or episodic dental care users. In the ancillary dental ARIC study, selected subjects from ARIC underwent fullmouth periodontal measurements collected at 6 sites per tooth and classified into 7 periodontal profile classes (PPCs). RESULTS: In the ARIC study 10 362 stroke-free participants, 584 participants had incident ischemic strokes over a 15-year period. In the dental ARIC study, 6736 dentate subjects were assessed for periodontal disease status using PPC with a total of 299 incident ischemic strokes over the 15-year period. The 7 levels of PPC showed a trend toward an increased stroke risk (chi2 trend P<0.0001); the incidence rate for ischemic stroke/1000-person years was 1.29 for PPC-A (health), 2.82 for PPC-B, 4.80 for PPC-C, 3.81 for PPC-D, 3.50 for PPC-E, 4.78 for PPC-F, and 5.03 for PPC-G (severe periodontal disease). Periodontal disease was significantly associated with cardioembolic (hazard ratio, 2.6; 95% confidence interval, 1.2-5.6) and thrombotic (hazard ratio, 2.2; 95% confidence interval, 1.3-3.8) stroke subtypes. Regular dental care utilization was associated with lower adjusted stroke risk (hazard ratio, 0.77; 95% confidence interval, 0.63 0.94). CONCLUSIONS: We confirm an independent association between periodontal disease and incident stroke risk, particularly cardioembolic and thrombotic stroke subtype. Further, we report that regular dental care utilization may lower this risk for stroke. PMID- 29335337 TI - Salivary glands regenerate after radiation injury through SOX2-mediated secretory cell replacement. AB - Salivary gland acinar cells are routinely destroyed during radiation treatment for head and neck cancer that results in a lifetime of hyposalivation and co morbidities. A potential regenerative strategy for replacing injured tissue is the reactivation of endogenous stem cells by targeted therapeutics. However, the identity of these cells, whether they are capable of regenerating the tissue, and the mechanisms by which they are regulated are unknown. Using in vivo and ex vivo models, in combination with genetic lineage tracing and human tissue, we discover a SOX2+ stem cell population essential to acinar cell maintenance that is capable of replenishing acini after radiation. Furthermore, we show that acinar cell replacement is nerve dependent and that addition of a muscarinic mimetic is sufficient to drive regeneration. Moreover, we show that SOX2 is diminished in irradiated human salivary gland, along with parasympathetic nerves, suggesting that tissue degeneration is due to loss of progenitors and their regulators. Thus, we establish a new paradigm that salivary glands can regenerate after genotoxic shock and do so through a SOX2 nerve-dependent mechanism. PMID- 29335340 TI - Anticitrullinated Protein Antibodies Induce Inflammatory Gene Expression Profile in Peripheral Blood Cells from CCP-positive Patients with RA. AB - OBJECTIVE: Anticitrullinated protein antibodies (ACPA) have major diagnostic significance in rheumatoid arthritis (RA). ACPA are directed against different citrullinated antigens, including filaggrin, fibrinogen, vimentin, and collagen. The presence of ACPA is associated with joint damage and extraarticular manifestations, suggesting that ACPA may have a significant role in the pathogenesis of RA. METHODS: To verify the effect of ACPA on RA-immune cells, peripheral blood mononuclear cells (PBMC) from cyclic citrullinated peptide (CCP) positive patients with RA and healthy controls were cocultured in vitro with ACPA. ACPA-positive stained cells were analyzed by flow cytometry and the effect of ACPA on mRNA expression levels was evaluated by real-time PCR. We tested whether the stimulatory effects induced by ACPA could be inhibited by the addition of a new multiepitope citrullinated peptide (Cit-ME). RESULTS: We found that ACPA bind specifically to PBMC from CCP-positive patients with RA through the Fab portion. ACPA induce upregulation of pathogenic cytokine expression (4- to 13-fold increase) in PBMC derived from CCP-positive patients with RA. Moreover, ACPA upregulated IL-1beta and IL-6 mRNA expression levels by 10- and 6 fold, respectively, compared to control IgG. Cit-ME, a genuine ligand of ACPA, inhibited the ACPA-induced upregulation of IL-1beta and IL-6 by 30%. CONCLUSION: ACPA bind to a limited percentage of PBMC and upregulate inflammatory cytokine expression, suggesting that ACPA is involved in RA pathogenesis. Targeting ACPA to decrease their pathogenic effects might provide a novel direction in developing therapeutic strategies for RA. PMID- 29335341 TI - Trends in Healthcare Expenditures among Individuals with Arthritis in the United States from 2008 to 2014. AB - OBJECTIVE: With the expected rise in the arthritis population, information is required regarding trends of healthcare expenditures among individuals with arthritis in the United States. We examined temporal trends in direct and out-of pocket (OOP) healthcare expenditures among individuals with arthritis using a nationally representative database, the Medical Expenditures Panel Survey. METHODS: The study population was composed of cross-sectional cohorts of individuals aged >= 18 years from 2008 to 2014. Two-part models were used to estimate the incremental total and types of annual direct and OOP healthcare expenditures (adjusted to 2014 US dollars) for arthritis, after controlling for predisposing, enabling, need, personal health practice, and external environmental factors, as per the Anderson Healthcare Behavioral Model. RESULTS: An annual weighted arthritis population rose from 56.1 million in 2008 to 65.1 million in 2014. Among individuals with arthritis, the annual average direct and OOP expenditure was $10,424 [standard error (SE) = $345, aggregate = $584.8 billion] and $1493 (SE = $50, aggregate = $83.8 billion) in 2008, respectively, and $910 (SE = $279, total = $645.1 billion) and $1099 (SE = $36, aggregate = $71.5 billion) in 2014, respectively. In the fully adjusted model, individuals with arthritis had significantly greater total and OOP expenditures from 2008 to 2014; however, the magnitude of incremental OOP expenditure declined from 2008 to 2014. CONCLUSION: Although the annual direct healthcare expenditures per person remained stable over the years, the rise in proportion of the arthritis population led to a huge increase in aggregate economic burden to the US healthcare system. PMID- 29335338 TI - CRTH2 promotes endoplasmic reticulum stress-induced cardiomyocyte apoptosis through m-calpain. AB - Apoptotic death of cardiac myocytes is associated with ischemic heart disease and chemotherapy-induced cardiomyopathy. Chemoattractant receptor-homologous molecule expressed on T helper type 2 cells (CRTH2) is highly expressed in the heart. However, its specific role in ischemic cardiomyopathy is not fully understood. Here, we demonstrated that CRTH2 disruption markedly improved cardiac recovery in mice postmyocardial infarction and doxorubicin challenge by suppressing cardiomyocyte apoptosis. Mechanistically, CRTH2 activation specifically facilitated endoplasmic reticulum (ER) stress-induced cardiomyocyte apoptosis via caspase-12-dependent pathway. Blockage of m-calpain prevented CRTH2-mediated cardiomyocyte apoptosis under ER stress by suppressing caspase-12 activity. CRTH2 was coupled with Galphaq to elicit intracellular Ca2+ flux and activated m calpain/caspase-12 cascade in cardiomyocytes. Knockdown of caspase-4, an alternative to caspase-12 in humans, markedly alleviated CRHT2 activation-induced apoptosis in human cardiomyocyte response to anoxia. Our findings revealed an unexpected role of CRTH2 in promoting ER stress-induced cardiomyocyte apoptosis, suggesting that CRTH2 inhibition has therapeutic potential for ischemic cardiomyopathy. PMID- 29335339 TI - Inhibition of Drp1/Fis1 interaction slows progression of amyotrophic lateral sclerosis. AB - Bioenergetic failure and oxidative stress are common pathological hallmarks of amyotrophic lateral sclerosis (ALS), but whether these could be targeted effectively for novel therapeutic intervention needs to be determined. One of the reported contributors to ALS pathology is mitochondrial dysfunction associated with excessive mitochondrial fission and fragmentation, which is predominantly mediated by Drp1 hyperactivation. Here, we determined whether inhibition of excessive fission by inhibiting Drp1/Fis1 interaction affects disease progression. We observed mitochondrial excessive fragmentation and dysfunction in several familial forms of ALS patient-derived fibroblasts as well as in cultured motor neurons expressing SOD1 mutant. In both cell models, inhibition of Drp1/Fis1 interaction by a selective peptide inhibitor, P110, led to a significant reduction in reactive oxygen species levels, and to improvement in mitochondrial structure and functions. Sustained treatment of mice expressing G93A SOD1 mutation with P110, beginning at the onset of disease symptoms at day 90, produced an improvement in motor performance and survival, suggesting that Drp1 hyperactivation may be an attractive target in the treatment of ALS patients. PMID- 29335342 TI - Comparative Efficacy of Tumor Necrosis Factor-alpha Inhibitors in Ankylosing Spondylitis: A Systematic Review and Bayesian Network Metaanalysis. AB - OBJECTIVE: To compare the efficacy of 6 tumor necrosis factor-alpha inhibitors (TNFi) in treatment of ankylosing spondylitis (AS) at 12 weeks and 24 weeks. METHODS: We performed a systematic literature review of randomized controlled trials of TNFi in patients with active AS. We included trials that reported efficacy at 10 to 14 weeks (12-week analysis) and at 24 to 30 weeks (24-week analysis). We used Bayesian network metaanalysis (NMA) to compare their relative efficacy to improve the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI), and C-reactive protein (CRP) level. RESULTS: We included 20 trials of 6 TNFi, with 43 treatment arms and 3220 participants. All TNFi were significantly better than placebo in reducing BASDAI and BASFI at 12 weeks and 24 weeks; all but certolizumab pegol (CZP) were statistically better than placebo in reducing CRP at 12 weeks; all but CZP and infliximab-dyyb (IFX biosimilar) were significantly better than placebo in reducing CRP at 24 weeks. IFX was superior to the other TNFi in decreasing BASDAI at 12 weeks, but not at 24 weeks. Excluding 1 open-label trial, there were no differences among TNFi. CONCLUSION: Based on this NMA of clinical trials, IFX was superior to other TNFi in reducing BASDAI at 12 weeks, but sensitive to inclusion of an open-label trial, and its efficacy was diminished at 24 weeks. The analysis was limited by few direct comparison trials. Further study of relative safety and longterm effectiveness will help inform the choice of TNFi in treating active AS. PMID- 29335343 TI - Association Between Glucocorticoid Exposure and Healthcare Expenditures for Potential Glucocorticoid-related Adverse Events in Patients with Rheumatoid Arthritis. AB - OBJECTIVE: Oral glucocorticoid (OGC) use for rheumatoid arthritis (RA) is debated because of the adverse event (AE) profile of OGC. We evaluated the associations between cumulative doses of OGC and potential OGC-related AE, and quantified the associated healthcare expenditures. METHODS: Using the MarketScan databases, patients >= 18 years old who have RA with continuous enrollment from January 1 to December 31, 2012 (baseline), and from January 1 to December 31, 2013 (evaluation period), were identified. Cumulative OGC dose was measured using prescription claims during the baseline period. Potential OGC-related AE (osteoporosis, fracture, aseptic necrosis of the bone, type 2 diabetes, ulcer/gastrointestinal bleeding, cataract, hospitalization for opportunistic infection, myocardial infarction, or stroke) and AE-related expenditures (2013 US$) were gathered during the evaluation period. Multivariable regression models were fitted to estimate OR of AE and incremental costs for patients with AE. RESULTS: There were 84,357 patients analyzed, of whom 48% used OGC during the baseline period and 26% had an AE during the evaluation period. A cumulative OGC dose > 1800 mg was associated with an increased risk of any AE compared with no OGC exposure (OR 1.19, 99.65% CI 1.09-1.30). Incremental costs per patient with any AE were significantly greater for cumulative OGC dose > 1800 mg compared with no OGC exposure (incremental cost = $3528, 99.65% CI $2402-$4793). CONCLUSION: Chronic exposure to low to medium doses of OGC was associated with significantly increased risk of potential OGC-related AE in patients with RA, and greater cumulative OGC dose was associated with substantially higher AE-related healthcare expenditures among patients with AE. PMID- 29335344 TI - Can Ultrasound Be Used to Predict Loss of Remission in Patients with RA in a Real life Setting? A Multicenter Cohort Study. AB - OBJECTIVE: Several studies have suggested that patients with rheumatoid arthritis (RA) presenting with ultrasound (US) synovitis despite clinical remission have more subsequent flares than those who show both clinical and sonographic remission. The objective of our study was to investigate whether these results could be translated to a real-life setting. METHODS: We compared the time from the first US performed in clinical remission to loss of remission (defined by a DAS28 > 2.6 or the need for stepping up treatment with disease-modifying antirheumatic drugs) within the Swiss Clinical Quality Management cohort of patients with RA, and we adjusted for relevant confounders. Analyses were repeated for different definitions of US-detected synovitis (US+) using greyscale, Doppler, and combined modes based on previously validated scores, and they were adjusted for relevant confounders. RESULTS: There were 318 RA patients with 378 remission phases included. Loss of clinical remission was observed in 60% of remission phases. Residual US synovitis was associated with a shorter duration of clinical remission (median 2-5 mos) and a moderately increased hazard ratio (HR) for loss of remission (HR 1.2-1.5), with the highest HR for the combined US score. The association between US+ and loss of remission was strongest when the US measurement had taken place early in remission (shorter median duration of 6-20 mos) and when followup time was limited to the first 3 or 6 months (most HR between 2-4). CONCLUSION: US-detected synovitis, particularly when US is performed early in clinical remission, has a moderate predictive power for loss of remission in a real-life setting. PMID- 29335346 TI - Severity of Sacroiliitis and Erythrocyte Sedimentation Rate are Associated with a Low Trabecular Bone Score in Young Male Patients with Ankylosing Spondylitis. AB - OBJECTIVE: To examine factors related to a low trabecular bone score (TBS) and the association between TBS and vertebral fractures in patients with ankylosing spondylitis (AS). METHODS: One hundred patients (all male, aged < 50 yrs) who fulfilled the modified New York criteria for the classification of AS were enrolled. The TBS and bone mineral density (BMD) were assessed using dual-energy X-ray absorptiometry. Clinical variables, inflammatory markers, and the presence of vertebral fractures were also assessed. Sacroiliitis grade and spinal structural damage were measured using the modified New York criteria and the Stoke Ankylosing Spondylitis Spine Score (SASSS). RESULTS: The mean TBS was 1.38 +/- 0.13. The TBS showed a positive correlation with BMD at the lumbar spine, femoral neck, and total hip. TBS negatively correlated with SASSS, whereas BMD at the lumbar spine showed a positive correlation. A significant decrease in TBS values was observed in patients with spinal structural damage (p = 0.001). Univariate analysis identified disease duration, erythrocyte sedimentation rate (ESR), sacroiliitis grade, and SASSS as being associated with TBS. Multivariate analysis identified ESR and sacroiliitis grade as being independently associated with TBS (p = 0.006 and p < 0.001, respectively). Ten patients had morphometric vertebral fractures. The mean TBS was lower in patients with vertebral fractures than in age-matched patients without fractures (p = 0.028). Lower TBS predicted vertebral fractures (area under curve = 0.733, cutoff = 1.311). CONCLUSION: The TBS in young male patients with AS is associated with the ESR and severity of sacroiliitis. The TBS may be useful as a tool for assessing osteoporosis in AS. PMID- 29335345 TI - S100A12 Is Associated with Response to Therapy in Juvenile Idiopathic Arthritis. AB - OBJECTIVE: Around one-third of patients with juvenile idiopathic arthritis (JIA) fail to respond to first-line methotrexate (MTX) or anti-tumor necrosis factor (TNF) therapy, with even fewer achieving >= American College of Rheumatology Pediatric 70% criteria for response (ACRpedi70), though individual responses cannot yet be accurately predicted. Because change in serum S100-protein myeloid related protein complex 8/14 (MRP8/14) is associated with therapeutic response, we tested granulocyte-specific S100-protein S100A12 as a potential biomarker for treatment response. METHODS: S100A12 serum concentration was determined by ELISA in patients treated with MTX (n = 75) and anti-TNF (n = 88) at baseline and followup. Treatment response (>= ACRpedi50 score), achievement of inactive disease, and improvement in Juvenile Arthritis Disease Activity Score (JADAS)-10 score were recorded. RESULTS: Baseline S100A12 concentration was measured in patients treated with anti-TNF [etanercept n = 81, adalimumab n = 7; median 200, interquartile range (IQR) 133-440 ng/ml] and MTX (median 220, IQR 100-440 ng/ml). Of the patients in the anti-TNF therapy group, 74 (84%) were also receiving MTX. Responders to MTX (n = 57/75) and anti-TNF (n = 66/88) therapy had higher baseline S100A12 concentration compared to nonresponders: median 240 (IQR 125 615) ng/ml versus 150 (IQR 87-233) ng/ml, p = 0.021 for MTX, and median 308 (IQR 150-624) ng/ml versus 151 (IQR 83-201) ng/ml, p = 0.002, for anti-TNF therapy. Followup S100A12 could be measured in 44/75 MTX-treated patients (34/44 responders) and 39/88 anti-TNF-treated patients (26/39 responders). Responders had significantly reduced S100A12 concentration (MTX: p = 0.031, anti-TNF: p < 0.001) at followup versus baseline. Baseline serum S100A12 in both univariate and multivariate regression models for anti-TNF therapy and univariate analysis alone for MTX therapy was significantly associated with change in JADAS-10. CONCLUSION: Responders to MTX or anti-TNF treatment can be identified by higher pretreatment S100A12 serum concentration levels. PMID- 29335348 TI - The Dorsal 4-finger Technique: A Novel Method to Examine Metacarpophalangeal Joints in Patients with Rheumatoid Arthritis. AB - OBJECTIVE: To describe the dorsal 4-finger technique (DFFT) in examining metacarpophalangeal (MCP) joints of patients with rheumatoid arthritis (RA) and compare it to the traditional 2-finger technique (TFT) using ultrasound (US) as a gold standard. METHODS: Four rheumatologists evaluated 180 MCP joints of 18 patients with RA. All patients underwent US for greyscale (GSUS) and power Doppler US (PDUS). Agreements between rheumatologists, the 2 techniques, and US were evaluated using Cohen kappa and the first-order agreement coefficient (AC1) kappa methods. RESULTS: The population comprised 17 females (94.4%) with a mean (SD) age and disease duration of 56.8 (14.4) and 21.8 (12.9) years, respectively. Eight patients (44.4%) were taking methotrexate monotherapy, while 10 patients (55.6%) were receiving biologics. US evaluation revealed 69 (38.3%) and 30 (16.7%) joints exhibited synovitis grade 2-3 by GSUS and PDUS, respectively. Effusion was documented in 30 joints (16.7%). The mean intraobserver agreement using the DFFT and TFT were 80.5% and 86%, respectively. The mean interobserver agreements using the DFFT and TFT were 84% and 74%, respectively. kappa agreement with US findings was similar for both techniques in tender joints but was higher for the DFFT in nontender joints (0.33 vs 0.07, p = 0.015 for GSUS) and (0.48 vs 0.11, p = 0.002 for PDUS). The DFFT had a higher sensitivity in detecting ballottement by GSUS (0.47 vs 0.2, p < 0.001) and PDUS (0.60 vs 0.27, p < 0.001). CONCLUSION: The DFFT is a novel, reproducible, and reliable method to examine MCP joints, and it has a better correlation with US than the traditional TFT. PMID- 29335347 TI - Smoking Is the Most Significant Modifiable Lung Cancer Risk Factor in Systemic Lupus Erythematosus. AB - OBJECTIVE: To assess lung cancer risk in systemic lupus erythematosus (SLE), relative to demographics, drug exposures, smoking, and disease activity. METHODS: We analyzed data from 14 SLE cohorts. We calculated adjusted HR estimates for lung cancer in SLE, relative to demographics, smoking, time-dependent medication exposures, and cumulative disease activity [mean adjusted SLE Disease Activity Index (SLEDAI) scores]. This project was approved by the ethics boards of all participating institutions, including the Institutional Review Board of the McGill University Health Centre. The ethics approval number for the Cancer Risk study is GEN-06-031. RESULTS: Within these 14 SLE cohorts, 49 incident lung cancers occurred. Among lung cancer cases, 59.0% were in the highest SLEDAI quartile at baseline versus 40.8% of lung cancer-free SLE controls. The vast majority (84.2%) of SLE lung cancer cases were ever-smokers at baseline, versus 40.1% of those without lung cancer. In adjusted models, the principal factors associated with lung cancer were ever smoking (at cohort entry) and current age. Estimated adjusted effects of all drugs were relatively imprecise, but did not point toward any drug exposures as strong lung cancer risk factors. CONCLUSION: We saw no clear evidence for drugs as a trigger for lung cancer risk in SLE, although drug risk estimates were relatively imprecise. Smoking may be the most significant modifiable lung cancer risk factor in SLE. PMID- 29335349 TI - Efficacy of Continuous Interleukin 1 Blockade in Mevalonate Kinase Deficiency: A Multicenter Retrospective Study in 13 Adult Patients and Literature Review. AB - OBJECTIVE: To report efficacy and tolerance of interleukin 1 blockade in adult patients with mevalonate kinase deficiency (MKD). METHODS: We retrospectively collected data on 13 patients with MKD who had received anakinra (n = 10) and canakinumab (n = 7). RESULTS: Anakinra resulted in complete or partial remission in 3/10 and 5/10 patients, respectively, and no efficacy in 2/10, but a switch to canakinumab led to partial remission. Canakinumab resulted in complete or partial remission in 3/7 and 4/7 patients, respectively. CONCLUSION: These data support frequent partial responses, showing a better response with canakinumab. The genotype and therapeutic outcomes correlation should help in the personalization of treatment. PMID- 29335351 TI - Endocrinologist charged with murder of wife who threatened to reveal his opioid dealing. PMID- 29335350 TI - Epidemiology and Medication Pattern Change of Psoriatic Diseases in Taiwan from 2000 to 2013: A Nationwide, Population-based Cohort Study. AB - OBJECTIVE: To analyze the trend of prevalence and incidence rates for psoriatic arthritis (PsA) and psoriasis in Taiwan, and to determine the changes in medication patterns. METHODS: Data were collected from the Taiwan National Health Insurance Research Database, which covered at least 95% of the population from 2000 to 2013. International Classification of Diseases, 9th edition (ICD-9) was used to identify PsA (ICD-9 696.0) and other psoriasis (ICD-9 696.1). Medications were identified by Anatomical Therapeutic Chemical Classification code. We calculated the annual age standardized prevalence and incidence rate of PsA and psoriasis in individuals aged >= 16 years from 2000 to 2013, and used the Poisson regression to test the trends by Wald chi-square statistic. RESULTS: The prevalence (per 100,000 population) of psoriatic diseases between 2000 and 2013 increased from 11.12 to 37.75 for PsA, and from 179.2 to 281.5 for psoriasis. The incidence (per 100,000 person-yrs) increased from 3.64 to 6.91 in PsA, while there was no significant change in psoriasis. Prevalence and incidence in PsA were more rapidly increased than in psoriasis. Sex ratio (men to women) of PsA decreased from 2.0 to 1.5 in 2000 and 2013, respectively. There was an increase in the use of disease-modifying antirheumatic drugs (DMARD), especially biologics, which is significantly different from topical therapies. CONCLUSION: The prevalence and incidence rates of psoriatic disease, especially PsA, were increasing in Taiwan. The medication pattern showed an increase in DMARD and biologics, while use of topical therapies decreased. PMID- 29335352 TI - Discrete Modules and Mesoscale Functional Circuits for Thermal Nociception within Primate S1 Cortex. AB - This study addresses one long-standing question of whether functional separations are preserved for somatosensory modalities of touch, heat, and cold nociception within primate primary somatosensory (S1) cortex. This information is critical for understanding how the nature of pain is represented in the primate brain. Using a combination of submillimeter-resolution fMRI and microelectrode local field potential (LFP) and spike recordings, we identified spatially segregated cortical zones for processing touch and nociceptive heat and cold stimuli in somatotopically appropriate areas 3a, 3b, 1, and 2 of S1 in male monkeys. The distances between zones were comparable (~3.4 mm) across stimulus modalities (heat, cold, and tactile), indicating the existence of uniform, modality-specific modules. Stimulus-evoked LFP maps validated the fMRI maps in areas 3b and 1. Isolation of heat and cold nociceptive neurons from the fMRI zones confirmed the validity of using fMRI to probe nociceptive regions and circuits. Resting-state fMRI analysis revealed distinct intrinsic functional circuits among functionally related zones. We discovered distinct modular structures and networks for thermal nociception within S1 cortex, a finding that has significant implications for studying chronic pain syndromes and guiding the selection of neuromodulation targets for chronic pain management.SIGNIFICANCE STATEMENT Primate S1 subregions contain discrete heat and cold nociceptive modules. Modules with the same properties exhibit strong functional connection. Nociceptive fMRI response coincides with LFP and spike activities of nociceptive neurons. Functional separation of heat and cold pain is retained within primate S1 cortex. PMID- 29335353 TI - KChIP3 N-Terminal 31-50 Fragment Mediates Its Association with TRPV1 and Alleviates Inflammatory Hyperalgesia in Rats. AB - Potassium voltage-gated channel interacting protein 3 (KChIP3), also termed downstream regulatory element antagonist modulator (DREAM) and calsenilin, is a multifunctional protein belonging to the neuronal calcium sensor (NCS) family. Recent studies revealed the expression of KChIP3 in dorsal root ganglion (DRG) neurons, suggesting the potential role of KChIP3 in peripheral sensory processing. Herein, we show that KChIP3 colocalizes with transient receptor potential ion channel V1 (TRPV1), a critical molecule involved in peripheral sensitization during inflammatory pain. Furthermore, the N-terminal 31-50 fragment of KChIP3 is capable of binding both the intracellular N and C termini of TRPV1, which substantially decreases the surface localization of TRPV1 and the subsequent Ca2+ influx through the channel. Importantly, intrathecal administration of the transmembrane peptide transactivator of transcription (TAT) 31-50 remarkably reduces Ca2+ influx via TRPV1 in DRG neurons and alleviates thermal hyperalgesia and gait alterations in a complete Freund's adjuvant-induced inflammatory pain model in male rats. Moreover, intraplantar injection of TAT-31 50 attenuated the capsaicin-evoked spontaneous pain behavior and thermal hyperalgesia, which further strengthened the regulatory role of TAT-31-50 on TRPV1 channel. In addition, TAT-31-50 could also alleviate inflammatory thermal hyperalgesia in kcnip3-/- rats generated in our study, suggesting that the analgesic effect mediated by TAT-31-50 is independent of endogenous KChIP3. Our study reveals a novel peripheral mechanism for the analgesic function of KChIP3 and provides a potential analgesic agent, TAT-31-50, for the treatment of inflammatory pain.SIGNIFICANCE STATEMENT Inflammatory pain arising from inflamed or injured tissues significantly compromises the quality of life in patients. This study aims to elucidate the role of peripheral potassium channel interacting protein 3 (KChIP3) in inflammatory pain. Direct interaction of the KChIP3 N terminal 31-50 fragment with transient receptor potential ion channel V1 (TRPV1) was demonstrated. The KChIP3-TRPV1 interaction reduces the surface localization of TRPV1 and thus alleviates heat hyperalgesia and gait alterations induced by peripheral inflammation. Furthermore, the transmembrane transactivator of transcription (TAT)-31-50 peptide showed analgesic effects on inflammatory hyperalgesia independently of endogenous KChIP3. This work reveals a novel mechanism of peripheral KChIP3 in inflammatory hyperalgesia that is distinct from its classical role as a transcriptional repressor in pain modulation. PMID- 29335354 TI - Correction: Heat strain, volume depletion and kidney function in California agricultural workers. PMID- 29335355 TI - Snap, crackle and pop: when sneezing leads to crackling in the neck. AB - Spontaneous perforation of the pharynx is an unusual condition. Due to its non specific presentation and general lack of awareness, diagnosis and intervention may be delayed resulting in potential complications. This case reports a rare spontaneous perforation of the pyriform sinus after a forceful sneeze, leading to cervical subcutaneous emphysema and pneumomediastinum. PMID- 29335356 TI - Single Bursts of Individual Granule Cells Functionally Rearrange Feedforward Inhibition. AB - The sparse single-spike activity of dentate gyrus granule cells (DG GCs) is punctuated by occasional brief bursts of 3-7 action potentials. It is well-known that such presynaptic bursts in individual mossy fibers (MFs; axons of granule cells) are often able to discharge postsynaptic CA3 pyramidal cells due to powerful short-term facilitation. However, what happens in the CA3 network after the passage of a brief MF burst, before the arrival of the next burst or solitary spike, is not understood. Because MFs innervate significantly more CA3 interneurons than pyramidal cells, we focused on unitary MF responses in identified interneurons in the seconds-long postburst period, using paired recordings in rat hippocampal slices. Single bursts as short as 5 spikes in <30 ms in individual presynaptic MFs caused a sustained, large increase (tripling) in the amplitude of the unitary MF-EPSCs for several seconds in ivy, axo axonic/chandelier and basket interneurons. The postburst unitary MF-EPSCs in these feedforward interneurons reached amplitudes that were even larger than the MF-EPSCs during the bursts in the same cells. In contrast, no comparable postburst enhancement of MF-EPSCs could be observed in pyramidal cells or nonfeedforward interneurons. The robust postburst increase in MF-EPSCs in feedforward interneurons was associated with significant shortening of the unitary synaptic delay and large downstream increases in disynaptic IPSCs in pyramidal cells. These results reveal a new cell type-specific plasticity that enables even solitary brief bursts in single GCs to powerfully enhance inhibition at the DG-CA3 interface in the seconds-long time-scales of interburst intervals.SIGNIFICANCE STATEMENT The hippocampal formation is a brain region that plays key roles in spatial navigation and learning and memory. The first stage of information processing occurs in the dentate gyrus, where principal cells are remarkably quiet, discharging low-frequency single action potentials interspersed with occasional brief bursts of spikes. Such bursts, in particular, have attracted a lot of attention because they appear to be critical for efficient coding, storage, and recall of information. We show that single bursts of a few spikes in individual granule cells result in seconds-long potentiation of excitatory inputs to downstream interneurons. Thus, while it has been known that bursts powerfully discharge ("detonate") hippocampal excitatory cells, this study clarifies that they also regulate inhibition during the interburst intervals. PMID- 29335357 TI - Nonlinear Relationship Between Spike-Dependent Calcium Influx and TRPC Channel Activation Enables Robust Persistent Spiking in Neurons of the Anterior Cingulate Cortex. AB - Continuation of spiking after a stimulus ends (i.e. persistent spiking) is thought to support working memory. Muscarinic receptor activation enables persistent spiking among synaptically isolated pyramidal neurons in anterior cingulate cortex (ACC), but a detailed characterization of that spiking is lacking and the underlying mechanisms remain unclear. Here, we show that the rate of persistent spiking in ACC neurons is insensitive to the intensity and number of triggers, but can be modulated by injected current, and that persistent spiking can resume after several seconds of hyperpolarization-imposed quiescence. Using electrophysiology and calcium imaging in brain slices from male rats, we determined that canonical transient receptor potential (TRPC) channels are necessary for persistent spiking and that TRPC-activating calcium enters in a spike-dependent manner via voltage-gated calcium channels. Constrained by these biophysical details, we built a computational model that reproduced the observed pattern of persistent spiking. Nonlinear dynamical analysis of that model revealed that TRPC channels become fully activated by the small rise in intracellular calcium caused by evoked spikes. Calcium continues to rise during persistent spiking, but because TRPC channel activation saturates, firing rate stabilizes. By calcium rising higher than required for maximal TRPC channel activation, TRPC channels are able to remain active during periods of hyperpolarization-imposed quiescence (until calcium drops below saturating levels) such that persistent spiking can resume when hyperpolarization is discontinued. Our results thus reveal that the robust intrinsic bistability exhibited by ACC neurons emerges from the nonlinear positive feedback relationship between spike-dependent calcium influx and TRPC channel activation.SIGNIFICANCE STATEMENT Neurons use action potentials, or spikes, to encode information. Some neurons can store information for short periods (seconds to minutes) by continuing to spike after a stimulus ends, thus enabling working memory. This so-called "persistent" spiking occurs in many brain areas and has been linked to activation of canonical transient receptor potential (TRPC) channels. However, TRPC activation alone is insufficient to explain many aspects of persistent spiking such as resumption of spiking after periods of imposed quiescence. Using experiments and simulations, we show that calcium influx caused by spiking is necessary and sufficient to activate TRPC channels and that the ensuing positive feedback interaction between intracellular calcium and TRPC channel activation can account for many hitherto unexplained aspects of persistent spiking. PMID- 29335358 TI - Sox2 Is Essential for Oligodendroglial Proliferation and Differentiation during Postnatal Brain Myelination and CNS Remyelination. AB - In the CNS, myelination and remyelination depend on the successful progression and maturation of oligodendroglial lineage cells, including proliferation and differentiation of oligodendroglial progenitor cells (OPCs). Previous studies have reported that Sox2 transiently regulates oligodendrocyte (OL) differentiation in the embryonic and perinatal spinal cord and appears dispensable for myelination in the postnatal spinal cord. However, the role of Sox2 in OL development in the brain has yet to be defined. We now report that Sox2 is an essential positive regulator of developmental myelination in the postnatal murine brain of both sexes. Stage-specific paradigms of genetic disruption demonstrated that Sox2 regulated brain myelination by coordinating upstream OPC population supply and downstream OL differentiation. Transcriptomic analyses further supported a crucial role of Sox2 in brain developmental myelination. Consistently, oligodendroglial Sox2-deficient mice developed severe tremors and ataxia, typical phenotypes indicative of hypomyelination, and displayed severe impairment of motor function and prominent deficits of brain OL differentiation and myelination persisting into the later CNS developmental stages. We also found that Sox2 was required for efficient OPC proliferation and expansion and OL regeneration during remyelination in the adult brain and spinal cord. Together, our genetic evidence reveals an essential role of Sox2 in brain myelination and CNS remyelination, and suggests that manipulation of Sox2 and/or Sox2-mediated downstream pathways may be therapeutic in promoting CNS myelin repair.SIGNIFICANCE STATEMENT Promoting myelin formation and repair has translational significance in treating myelin-related neurological disorders, such as periventricular leukomalacia and multiple sclerosis in which brain developmental myelin formation and myelin repair are severely affected, respectively. In this report, analyses of a series of genetic conditional knock out systems targeting different oligodendrocyte stages reveal a previously unappreciated role of Sox2 in coordinating upstream proliferation and downstream differentiation of oligodendroglial lineage cells in the mouse brain during developmental myelination and CNS remyelination. Our study points to the potential of manipulating Sox2 and its downstream pathways to promote oligodendrocyte regeneration and CNS myelin repair. PMID- 29335359 TI - Recruitment of Additional Corticospinal Pathways in the Human Brain with State Dependent Paired Associative Stimulation. AB - Standard brain stimulation protocols modify human motor cortex excitability by modulating the gain of the activated corticospinal pathways. However, the restoration of motor function following lesions of the corticospinal tract requires also the recruitment of additional neurons to increase the net corticospinal output. For this purpose, we investigated a novel protocol based on brain state-dependent paired associative stimulation.Motor imagery (MI)-related electroencephalography was recorded in healthy males and females for brain state dependent control of both cortical and peripheral stimulation in a brain-machine interface environment. State-dependency was investigated with concurrent, delayed, and independent stimulation relative to the MI task. Specifically, sensorimotor event-related desynchronization (ERD) in the beta-band (16-22 Hz) triggered peripheral stimulation through passive hand opening by a robotic orthosis and transcranial magnetic stimulation to the respective cortical motor representation, either synchronously or subsequently. These MI-related paradigms were compared with paired cortical and peripheral input applied independent of the brain state. Cortical stimulation resulted in a significant increase in corticospinal excitability only when applied brain state-dependently and synchronously to peripheral input. These gains were resistant to a depotentiation task, revealed a nonlinear evolution of plasticity, and were mediated via the recruitment of additional corticospinal neurons rather than via synchronization of neuronal firing. Recruitment of additional corticospinal pathways may be achieved when cortical and peripheral inputs are applied concurrently, and during beta-ERD. These findings resemble a gating mechanism and are potentially important for developing closed-loop brain stimulation for the treatment of hand paralysis following lesions of the corticospinal tract.SIGNIFICANCE STATEMENT The activity state of the motor system influences the excitability of corticospinal pathways to external input. State-dependent interventions harness this property to increase the connectivity between motor cortex and muscles. These stimulation protocols modulate the gain of the activated pathways, but not the overall corticospinal recruitment. In this study, a brain-machine interface paired peripheral stimulation through passive hand opening with transcranial magnetic stimulation to the respective cortical motor representation during volitional beta-band desynchronization. Cortical stimulation resulted in the recruitment of additional corticospinal pathways, but only when applied brain state-dependently and synchronously to peripheral input. These effects resemble a gating mechanism and may be important for the restoration of motor function following lesions of the corticospinal tract. PMID- 29335361 TI - Correction to "Discovery of Novel Small-Molecule Inducers of Heme Oxygenase-1 That Protect Human iPSC-Derived Cardiomyocytes from Oxidative Stress". PMID- 29335360 TI - Activity in the Ventral Medial Prefrontal Cortex Is Necessary for the Therapeutic Effects of Extinction in Rats. AB - Poor response and high relapse rates remain problematic in the treatment of stress-related psychiatric disorders such as depression and post-traumatic stress disorder. Although mechanisms of pharmacotherapies are intensely studied, little is known about mechanisms of behavioral therapy that could inform improved treatments. We have previously demonstrated the therapeutic effects of extinction learning as a behavioral intervention modeling exposure therapy in rats. In the present study, we tested the hypothesis that activity in the ventral medial prefrontal cortex (vmPFC) during extinction is necessary for its therapeutic effects. The inhibitory Gi-coupled designer receptor exclusively activated by designer drug CaMKIIalpha-hM4Di was expressed in vmPFC before administering chronic unpredictable stress (CUS). vmPFC projection neurons were then inhibited during extinction treatment by administering clozapine-N-oxide. Coping behavior and cognitive flexibility were assessed 24 h later on the shock-probe defensive burying test and attentional set-shifting test, respectively. Replicating previous results, extinction reversed the CUS-induced deficits in coping behavior and cognitive flexibility. Inhibiting vmPFC during extinction blocked these therapeutic effects. Further, increasing vmPFC activity with the excitatory Gq coupled designer receptor exclusively activated by designer drug hM3Dq 24 h before testing was sufficient to reverse the CUS-induced deficits. CUS reduced mPFC responsivity, assessed by measuring afferent-evoked field potentials in the mPFC, and this reduction was reversed by extinction treatment 24 h before testing. These results demonstrate the necessity of vmPFC activity in the therapeutic effects of extinction as a model of exposure therapy, and suggest that increased vmPFC activity induced by extinction is sufficient to produce lasting plastic changes that underlie its beneficial effects.SIGNIFICANCE STATEMENT Stress-related psychiatric disorders remain poorly treated. Psychotherapies can be effective, but their mechanisms remain unknown, hindering progress toward improved treatment. We used a rat model of behavioral therapy to identify potential targets for enhancing treatment. Fear extinction as a therapeutic behavioral intervention reversed stress-induced cognitive dysfunction and passive coping in rats, modeling components of stress-related psychiatric disease. Extinction also reversed stress-induced attenuation of mPFC responsivity. The therapeutic effects were prevented by blocking activity of glutamatergic neurons in the mPFC during extinction, and were mimicked by inducing activity in lieu of extinction. Thus, activity and plasticity in the mPFC underlie the beneficial effects of extinction on cognitive flexibility and coping behavior compromised by stress, and could be targets to enhance behavioral therapy. PMID- 29335362 TI - China: a return to the "kingdom of bicycles"? PMID- 29335363 TI - Why are there associations between telomere length and behaviour? AB - Individual differences in telomere length are associated with individual differences in behaviour in humans and birds. Within the human epidemiological literature this association is assumed to result from specific behaviour patterns causing changes in telomere dynamics. We argue that selective adoption-the hypothesis that individuals with short telomeres are more likely to adopt specific behaviours-is an alternative worthy of consideration. Selective adoption could occur either because telomere length directly affects behaviour or because behaviour and telomere length are both affected by a third variable, such as exposure to early-life adversity. We present differential predictions of the causation and selective adoption hypotheses and describe how these could be tested with longitudinal data on telomere length. Crucially, if behaviour is causal then it should be associated with differential rates of telomere attrition. Using smoking behaviour as an example, we show that the evidence that smoking accelerates the rate of telomere attrition within individuals is currently weak. We conclude that the selective adoption hypothesis for the association between behaviour and telomere length is both mechanistically plausible and, if anything, more compatible with existing empirical evidence than the hypothesis that behaviour is causal.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335364 TI - Experimental manipulation of telomere length: does it reveal a corner-stone role for telomerase in the natural variability of individual fitness? AB - Telomeres, the non-coding ends of linear chromosomes, are thought to be an important mechanism of individual variability in performance. Research suggests that longer telomeres are indicative of better health and increased fitness; however, many of these data are correlational and whether these effects are causal are poorly understood. Experimental tests are emerging in medical and laboratory-based studies, but these types of experiments are rare in natural populations, which precludes conclusions at an evolutionary level. At the crossroads between telomere length and fitness is telomerase, an enzyme that can lengthen telomeres. Experimental modulation of telomerase activity is a powerful tool to manipulate telomere length, and to look at the covariation of telomerase, telomeres and individual life-history traits. Here, we review studies that manipulate telomerase activity in laboratory conditions and emphasize the associated physiological and fitness consequences. We then discuss how telomerase's impact on ageing may go beyond telomere maintenance. Based on this overview, we then propose several research avenues for future studies to explore how individual variability in health, reproduction and survival may have coevolved with different patterns of telomerase activity and expression. Such knowledge is of prime importance to fully understand the role that telomere dynamics play in the evolution of animal ageing.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335365 TI - Characterization in humans of in vitro leucocyte maximal telomerase activity capacity and association with stress. AB - The goal of this study was to develop and validate a measure of maximal telomerase activity capacity (mTAC) for use in human studies of telomere biology, and to determine its association with measures of stress and stress responsivity. The study was conducted in a population of 28 healthy young women and men who were assessed serially across two separate days, at multiple time points, and in response to a standardized laboratory stressor. Venous blood was collected at each of these multiple assessments, and an in vitro mitogen challenge (phytohaemagglutinin supplemented with interleukin-2) was used to stimulate telomerase activity in leucocytes. After first establishing the optimal post stimulation time course to characterize mTAC, we determined the within-subject stability and the between-subject variability of mTAC. The major findings of our study are as follows: (i) the optimal time point to quantify human leucocyte mTAC appears to be at 72 h after mitogen stimulation; (ii) mTAC exhibits substantial within-subject stability (correlations were in the range of r 0.68-0.82) and between-subject variability, with a high intra-class coefficient (0.70), indicating greater between-subject relative to within-subject variability; (iii) mTAC is not influenced by situational factors including time of day, cortisol, acute stress exposure and immune cell distribution in the pre-stimulation blood sample; and (iv) a significant proportion of the between-subject variability in mTAC is associated with measures of stress and stress responsivity (mTAC is lower in subjects reporting higher levels of perceived (chronic) stress and exhibiting higher psychophysiological stress reactivity). Based collectively on these findings, it appears that mTAC, as proposed and operationalized, empirically meets the key criteria to represent a potentially useful individual difference measure of telomerase activity capacity of human leucocytes.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335367 TI - Evolution of telomere maintenance and tumour suppressor mechanisms across mammals. AB - Mammalian species differ dramatically in telomere biology. Species larger than 5 10 kg repress somatic telomerase activity and have shorter telomeres, leading to replicative senescence. It has been proposed that evolution of replicative senescence in large-bodied species is an anti-tumour mechanism counteracting increased risk of cancer due to increased cell numbers. By contrast, small-bodied species express high telomerase activity and have longer telomeres. To counteract cancer risk due to longer lifespan, long-lived small-bodied species evolved additional telomere-independent tumour suppressor mechanisms. Here, we tested the connection between telomere biology and tumorigenesis by analysing the propensity of fibroblasts from 18 rodent species to form tumours. We found a negative correlation between species lifespan and anchorage-independent growth. Small bodied species required inactivation of Rb and/or p53 and expression of oncogenic H-Ras to form tumours. Large-bodied species displayed a continuum of phenotypes requiring additional genetic 'hits' for malignant transformation. Based on these data we refine the model of the evolution of tumour suppressor mechanisms and telomeres. We propose that two different strategies evolved in small and large species because small-bodied species cannot tolerate small tumours that form prior to activation of the telomere barrier, and must instead use telomere independent strategies that act earlier, at the hyperplasia stage.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335366 TI - The paternal age at conception effect on offspring telomere length: mechanistic, comparative and adaptive perspectives. AB - Telomeres are repeating DNA found at the ends of chromosomes that, in the absence of restorative processes, shorten with cell replications and are implicated as a cause of senescence. It appears that sperm telomere length (TL) increases with age in humans, and as a result offspring of older fathers inherit longer telomeres. We review possible mechanisms underlying this paternal age at conception (PAC) effect on TL, including sperm telomere extension due to telomerase activity, age-dependent changes in the spermatogonial stem cell population (possibly driven by 'selfish' spermatogonia) and non-causal confounding. In contrast to the lengthening of TL with PAC, higher maternal age at conception appears to predict shorter offspring TL in humans. We review evidence for heterogeneity across species in the PAC effect on TL, which could relate to differences in statistical power, sperm production rates or testicular telomerase activity. Finally, we review the hypothesis that the PAC effect on TL may allow a gradual multi-generational adaptive calibration of maintenance effort, and reproductive lifespan, to local demographic conditions: descendants of males who reproduced at a later age are likely to find themselves in an environment where increased maintenance effort, allowing later reproduction, represents a fitness improving resource allocation.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335368 TI - In medio stat virtus: unanticipated consequences of telomere dysequilibrium. AB - The integrity of chromosome ends, or telomeres, depends on myriad processes that must balance the need to compact and protect the telomeric, G-rich DNA from detection as a double-stranded DNA break, and yet still permit access to enzymes that process, replicate and maintain a sufficient reserve of telomeric DNA. When unable to maintain this equilibrium, erosion of telomeres leads to perturbations at or near the telomeres themselves, including loss of binding by the telomere protective complex, shelterin, and alterations in transcription and post translational modifications of histones. Although the catastrophic consequences of full telomere de-protection are well described, recent evidence points to other, less obvious perturbations that arise when telomere length equilibrium is altered. For example, critically short telomeres also perturb DNA methylation and histone post-translational modifications at distal sites throughout the genome. In murine stem cells for example, this dysregulated chromatin leads to inappropriate suppression of pluripotency regulator factors such as Nanog This review summarizes these recent findings, with an emphasis on how these genome wide, telomere-induced perturbations can have profound consequences on cell function and fate.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335369 TI - The rate of telomere loss is related to maximum lifespan in birds. AB - Telomeres are highly conserved regions of DNA that protect the ends of linear chromosomes. The loss of telomeres can signal an irreversible change to a cell's state, including cellular senescence. Senescent cells no longer divide and can damage nearby healthy cells, thus potentially placing them at the crossroads of cancer and ageing. While the epidemiology, cellular and molecular biology of telomeres are well studied, a newer field exploring telomere biology in the context of ecology and evolution is just emerging. With work to date focusing on how telomere shortening relates to individual mortality, less is known about how telomeres relate to ageing rates across species. Here, we investigated telomere length in cross-sectional samples from 19 bird species to determine how rates of telomere loss relate to interspecific variation in maximum lifespan. We found that bird species with longer lifespans lose fewer telomeric repeats each year compared with species with shorter lifespans. In addition, phylogenetic analysis revealed that the rate of telomere loss is evolutionarily conserved within bird families. This suggests that the physiological causes of telomere shortening, or the ability to maintain telomeres, are features that may be responsible for, or co-evolved with, different lifespans observed across species.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335370 TI - Somatic growth and telomere dynamics in vertebrates: relationships, mechanisms and consequences. AB - Much telomere loss takes place during the period of most rapid growth when cell proliferation and potentially energy expenditure are high. Fast growth is linked to reduced longevity. Therefore, the effects of somatic cell proliferation on telomere loss and cell senescence might play a significant role in driving the growth-lifespan trade-off. While different species will have evolved a growth strategy that maximizes lifetime fitness, environmental conditions encountered during periods of growth will influence individual optima. In this review, we first discuss the routes by which altered cellular conditions could influence telomere loss in vertebrates, with a focus on oxidative stress in both in vitro and in vivo studies. We discuss the relationship between body growth and telomere length, and evaluate the empirical evidence that this relationship is generally negative. We further discuss the potentially conflicting hypotheses that arise when other factors are taken into account, and the further work that needs to be undertaken to disentangle confounding variables.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335371 TI - The relationship between telomere length and mortality risk in non-model vertebrate systems: a meta-analysis. AB - Telomere length (TL) has become a biomarker of increasing interest within ecology and evolutionary biology, and has been found to predict subsequent survival in some recent avian studies but not others. Here, we undertake the first formal meta-analysis to test whether there is an overall association between TL and subsequent mortality risk in vertebrates other than humans and model laboratory rodents. We identified 27 suitable studies and obtained standardized estimates of the hazard ratio associated with TL from each. We performed a meta-analysis on these estimates and found an overall significant negative association implying that short telomeres are associated with increased mortality risk, which was robust to evident publication bias. While we found that heterogeneity in the hazard ratios was not explained by sex, follow-up period, maximum lifespan or the age group of the study animals, the TL-mortality risk association was stronger in studies using qPCR compared to terminal restriction fragment methodologies. Our results provide support for a consistent association between short telomeres and increased mortality risk in birds, but also highlight the need for more research into non-avian vertebrates and the reasons why different telomere measurement methods may yield different results.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335373 TI - Ectothermic telomeres: it's time they came in from the cold. AB - We review the evolutionary ecology and genetics of telomeres in taxa that cannot elevate their body temperature to a preferred level through metabolism but do so by basking or seeking out a warm environment. This group of organisms contains all living things on earth, apart from birds and mammals. One reason for our interest in this synthetic group is the argument that high, stable body temperature increases the risk of malignant tumours if long, telomerase-restored telomeres make cells 'live forever'. If this holds true, ectotherms should have significantly lower cancer frequencies. We discuss to what degree there is support for this 'anti-cancer' hypothesis in the current literature. Importantly, we suggest that ectothermic taxa, with variation in somatic telomerase expression across tissue and taxa, may hold the key to understanding ongoing selection and evolution of telomerase dynamics in the wild. We further review endotherm specific effects of growth on telomeres, effects of autotomy ('tail dropping') on telomere attrition, and costs of maintaining sexual displays measured in telomere attrition. Finally, we cover plant ectotherm telomeres and life histories in a separate 'mini review'.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335372 TI - All's well that ends well: why large species have short telomeres. AB - Among mammal species, almost all life-history traits are strongly size dependent. This size dependence even occurs at a molecular level. For example, both telomere length and telomerase expression show a size-dependent threshold. With some exceptions, species smaller than approximately 2 kg express telomerase, while species larger than that do not. Among species greater than approximately 5 kg, telomeres tend to be short-less than 25 kb-while among smaller species, some species have short and some have long telomeres. Here, we present a model to explore the role of body size-dependent trade-offs in shaping this threshold. We assume that selection favours short telomeres as a mechanism to protect against cancer. At the same time, selection favours long telomeres as a protective mechanism against DNA damage and replicative senescence. The relative importance of these two selective forces will depend on underlying intrinsic mortality and risk of cancer, both of which are size-dependent. Results from this model suggest that a cost-benefit model for the evolution of telomere length could explain phylogenetic patterns observed within the Class Mammalia. In addition, the model suggests a general conceptual framework to think about the role that body size plays in the evolution of tumour suppressor mechanisms.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335374 TI - Understanding diversity in telomere dynamics. PMID- 29335375 TI - Reflections on telomere dynamics and ageing-related diseases in humans. AB - Epidemiological studies have principally relied on measurements of telomere length (TL) in leucocytes, which reflects TL in other somatic cells. Leucocyte TL (LTL) displays vast variation across individuals-a phenomenon already observed in newborns. It is highly heritable, longer in females than males and in individuals of African ancestry than European ancestry. LTL is also longer in offspring conceived by older men. The traditional view regards LTL as a passive biomarker of human ageing. However, new evidence suggests that a dynamic interplay between selective evolutionary forces and TL might result in trade-offs for specific health outcomes. From a biological perspective, an active role of TL in ageing related human diseases could occur because short telomeres increase the risk of a category of diseases related to restricted cell proliferation and tissue degeneration, including cardiovascular disease, whereas long telomeres increase the risk of another category of diseases related to increased proliferative growth, including major cancers. To understand the role of telomere biology in ageing-related diseases, it is essential to expand telomere research to newborns and children and seek further insight into the underlying causes of the variation in TL due to ancestry and geographical location.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335376 TI - Telomeres and genomic evolution. AB - The terminal regions of eukaryotic chromosomes, composed of telomere repeat sequences and sub-telomeric sequences, represent some of the most variable and rapidly evolving regions of the genome. The sub-telomeric regions are characterized by segmentally duplicated repetitive DNA elements, interstitial telomere repeat sequences and families of variable genes. Sub-telomeric repeat sequence families are shared among multiple chromosome ends, often rendering detailed sequence characterization difficult. These regions are composed of constitutive heterochromatin and are subjected to high levels of meiotic recombination. Dysfunction within telomere repeat arrays, either due to disruption in the chromatin structure or because of telomere shortening, can lead to chromosomal fusion and the generation of large-scale genomic rearrangements across the genome. The dynamic nature of telomeric regions, therefore, provides functionally useful variation to create genetic diversity, but also provides a mechanism for rapid genomic evolution that can lead to reproductive isolation and speciation. This article is part of the theme issue 'Understanding diversity in telomere dynamics'.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335377 TI - Heritability of telomere variation: it is all about the environment! AB - Individual differences in telomere length have been linked to survival and senescence. Understanding the heritability of telomere length can provide important insight into individual differences and facilitate our understanding of the evolution of telomeres. However, to gain accurate and meaningful estimates of telomere heritability it is vital that the impact of the environment, and how this may vary, is understood and accounted for. The aim of this review is to raise awareness of this important, but much under-appreciated point. We outline the factors known to impact telomere length and discuss the fact that telomere length is a trait that changes with age. We highlight statistical methods that can separate genetic from environmental effects and control for confounding variables. We then review how well previous studies in vertebrate populations including humans have taken these factors into account. We argue that studies to date either use methodological techniques that confound environmental and genetic effects, or use appropriate methods but lack sufficient power to fully separate these components. We discuss potential solutions. We conclude that we need larger studies, which also span longer time periods, to account for changing environmental effects, if we are to determine meaningful estimates of the genetic component of telomere length.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335378 TI - Comparison of telomere length measurement methods. AB - The strengths and limitations of the major methods developed to measure telomere lengths (TLs) in cells and tissues are presented in this review. These include Q PCR (Quantitative Polymerase Chain Reaction), TRF (Terminal Restriction Fragment) analysis, a variety of Q-FISH (Quantitative Fluorescence In Situ Hybridization) methods, STELA (Single TElomere Length Analysis) and TeSLA (Telomere Shortest Length Assay). For each method, we will cover information about validation studies, including reproducibility in independent laboratories, accuracy, reliability and sensitivity for measuring not only the average but also the shortest telomeres. There is substantial evidence that it is the shortest telomeres that trigger DNA damage responses leading to replicative senescence in mammals. However, the most commonly used TL measurement methods generally provide information on average or relative TL, but it is the shortest telomeres that leads to telomere dysfunction (identified by TIF, Telomere dysfunction Induced Foci) and limit cell proliferation in the absence of a telomere maintenance mechanism, such as telomerase. As the length of the shortest telomeres is a key biomarker determining cell fate and the onset of senescence, a new technique (TeSLA) that provides quantitative information about all the shortest telomeres will be highlighted.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335379 TI - The role of telomeres in the mechanisms and evolution of life-history trade-offs and ageing. AB - Evolutionary biology and biomedicine have seen a surge of recent interest in the possibility that telomeres play a role in life-history trade-offs and ageing. Here, I evaluate alternative hypotheses for the role of telomeres in the mechanisms and evolution of life-history trade-offs and ageing, and highlight outstanding challenges. First, while recent findings underscore the possibility of a proximate causal role for telomeres in current-future trade-offs and ageing, it is currently unclear (i) whether telomeres ever play a causal role in either and (ii) whether any causal role for telomeres arises via shortening or length independent mechanisms. Second, I consider why, if telomeres do play a proximate causal role, selection has not decoupled such a telomere-mediated trade-off between current and future performance. Evidence suggests that evolutionary constraints have not rendered such decoupling impossible. Instead, a causal role for telomeres would more plausibly reflect an adaptive strategy, born of telomere maintenance costs and/or a function for telomere attrition (e.g. in countering cancer), the relative importance of which is currently unclear. Finally, I consider the potential for telomere biology to clarify the constraints at play in life-history evolution, and to explain the form of the current-future trade-offs and ageing trajectories that we observe today.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335380 TI - Mitochondrial activity in gametes and uniparental inheritance: a comment on 'What can we infer about the origin of sex in early eukaryotes?' PMID- 29335382 TI - The mitochondrial genome, paternal age and telomere length in humans. AB - Telomere length (TL) in humans is highly heritable and undergoes progressive age dependent shortening in somatic cells. By contrast, sperm donated by older men display comparatively long telomeres, presumably because in the male germline, telomeres become longer with age. This puzzling phenomenon might explain why TL in the offspring correlates positively with paternal age. The present communication proposes that mitochondrial DNA polymorphisms and heteroplasmy cause variation in the production of reactive oxygen species, which, in turn, mediate age-dependent selection of germ stem cells with long telomeres and hence sperm with long telomeres. These long telomeres are then inherited by the offspring. The effect of paternal age on the offspring TL might be an evolutionarily driven mechanism that helps regulate TL across the human population.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335383 TI - Response to Ghiselli F et al. (2018). PMID- 29335384 TI - Predictors of Hemodynamic Improvement and Stabilization Following Intraaortic Balloon Pump Implantation in Patients With Advanced Heart Failure. AB - OBJECTIVES: The intraaortic balloon pump (IABP) is currently an essential tool to improve hemodynamics in patients with advanced heart failure (HF). This study investigated predictors for hemodynamic improvement or stabilization with IABP therapy in patients with advanced HF. METHODS: Patients with advanced HF and hemodynamic deterioration treated with IABP were enrolled in this retrospective study. Invasive hemodynamics were measured before IABP implantation and 2 weeks after IABP initiation. Significant degree of hemodynamic improvement was defined as 30% improvement in all three of the following variables: central venous pressure (CVP); pulmonary capillary wedge pressure (PCWP); and cardiac index (CI). Hemodynamic stabilization was counted in patients reaching CVP <12 mm Hg, PCWP <18 mm Hg, and CI >2.0 L/min/m2 or CI >2.2 L/min/m2 on inotropes. RESULTS: Ninety-one patients (55 +/- 12 years; 78% males) were evaluated. Seventeen patients (18.7%) achieved significant hemodynamic improvement, and baseline CVP >16 mm Hg was associated with this endpoint (P<.05). Thirty-two patients (35.2%) achieved hemodynamic stabilization; lower baseline heart rate (HR) and PCWP were associated with this stabilization (P<.05). Patients with HR <92 beats/min and PCWP <25 mm Hg achieved hemodynamic stabilization more frequently than those without HR <92 beats/min and PCWP <25 mm Hg (66.7% vs 19.7%; P<.05). CONCLUSION: Elevated CVP and lower HR and PCWP before IABP initiation help predict high response to IABP. PMID- 29335386 TI - Safety and Feasibility of a Novel, Second-Generation Robotic-Assisted System for Percutaneous Coronary Intervention: First-in-Human Report. AB - OBJECTIVES: The goal of this study is to evaluate the safety and efficacy of the second-generation robotic-assisted system CorPath GRX (Corindus) for percutaneous coronary intervention (PCI). BACKGROUND: The first-generation CorPath 200 robotic assisted system for PCI is effective, but is limited by the lack of an active robotic guide-catheter control. The CorPath GRX device enables robotic guide catheter manipulation, in addition to guidewire and balloon/stent delivery. However, there have been no clinical data reported with this device. METHODS: Consecutive patients with demonstrated obstructive coronary artery disease (>70% stenosis) and clinical indications for PCI were treated with the CorPath GRX system and enrolled in the study. The two co-primary endpoints were clinical procedural success (final TIMI 3 flow, and <30% residual stenosis without in hospital major adverse cardiac event) and device technical success (robotic clinical procedural success without the need for unplanned manual assistance/conversion). RESULTS: The study enrolled 40 subjects (65.7 +/- 11.9 years; 72.5% males; 54 lesions) with a high proportion of American College of Cardiology/American Heart Association type B2/C lesions (77.8%). Clinical procedural success and device technical success rates were 97.5% (n = 39 of 40) and 90.0% (n = 36 of 40), respectively. CONCLUSION: The second-generation CorPath GRX system for robotic-assisted PCI is safe and effective, and achieves high rates of clinical and technical success in a cohort of patients with complex coronary disease. PMID- 29335385 TI - A Transradial Approach of Cardiac Catheterization for Patients on Dialysis. AB - BACKGROUND: Periprocedural bleeding is associated with increased risk of early mortality during percutaneous coronary intervention (PCI), especially in patients on dialysis. A transradial approach (TRA) should be considered for these patients; however, PCI operators avoid this approach because of the risk of radial artery occlusion (RAO). The aim of this study is to construct a TRA system and clarify its safety in patients on dialysis. METHODS: Eighty-eight consecutive patients on dialysis who underwent cardiac catheterization were prospectively included in this study and divided according to the access site into either the TRA group or the transfemoral approach (TFA) group. Radial access was limited in the opposite side of arteriovenous fistula. The study endpoints were in-hospital and 30-day mortality rates, puncture-site related bleeding complications, and other complications. The study safety endpoints were procedure success rate and RAO rate in the TRA group. RESULTS: Mean patient age was 70.4 +/- 8.5 years. PCI was performed in 43 patients (48.9%). The TRA and TFA groups included 62 patients (70.5%) and 26 patients (29.5%), respectively. In-hospital and 30-day mortality rates were 0.0% in both groups. Puncture-site bleeding rates were 3.8% in the TFA group and 0.0% in the TRA group (P=.12). Procedural success rate in the TRA group was 98.4%. Crossover to TFA was necessary in 1 patient due to radial artery spasm. RAO occurred in 4 patients (6.5%). CONCLUSIONS: Constructed TRA can be safely used in patients on dialysis. Our study could lead to an increase in TRA in these patients, which would lead to better prognosis and patient comfort. PMID- 29335387 TI - Clear Cell Carcinoma of the abdominal wall. AB - BACKGROUND: Clear cell carcinoma in scars after cesarean section is extremely rare, with only 22 cases reported in the literature. Management of this condition needs to be further explored. Here, we report of a patient with clear cell carcinoma of the abdominal wall that developed 35 years after cesarean section. CASE REPORT: The material of the study was a group of 61 patients divided into two groups. Group I - 35 deaf or with profound sensorineural hearing loss children (the pupils of the deaf and hard of hearing school), aged 5-17 years (average 9,2 years), 14 males, 21 females, II - control group comprised 26 normal hearing patients, aged 5-16 years (average 10,4 years), 14 males, 12 females (patients of Department of Pediatric Otolaryngology, Audiology and Phoniatrics, Medical University of Lodz). In both groups, exon 2 sequencing of GJB2 gene was performed. RESULTS: A 58-year-old woman was admitted to our department due to abdominal pain and a progressively growing mass in the abdominal wall. Based on biopsy, a preliminary diagnosis of clear cell carcinoma was made. A wide surgical excision of the tumor with clear margins, hysterectomy with bilateral salpingo oophorectomy, and abdominal wall reconstruction using synthetic mesh were performed. The patient was discharged in good condition after fifteen days of hospitalization. The patient remained recurrence-free 6 months after the treatment. CONCLUSIONS: T Lack of standardized management of rare malignant transformations hinders patient care. Due to a growing number of cesarean deliveries, we can expect clear cell carcinoma prevalence of the abdominal wall to increase. Therefore, patients and clinicians should attend to any pain, itching, or change in the size of abdominal wall scars. PMID- 29335381 TI - The fetal programming of telomere biology hypothesis: an update. AB - Research on mechanisms underlying fetal programming of health and disease risk has focused primarily on processes that are specific to cell types, organs or phenotypes of interest. However, the observation that developmental conditions concomitantly influence a diverse set of phenotypes, the majority of which are implicated in age-related disorders, raises the possibility that such developmental conditions may additionally exert effects via a common underlying mechanism that involves cellular/molecular ageing-related processes. In this context, we submit that telomere biology represents a process of particular interest in humans because, firstly, this system represents among the most salient antecedent cellular phenotypes for common age-related disorders; secondly, its initial (newborn) setting appears to be particularly important for its long-term effects; and thirdly, its initial setting appears to be plastic and under developmental regulation. We propose that the effects of suboptimal intrauterine conditions on the initial setting of telomere length and telomerase expression/activity capacity may be mediated by the programming actions of stress related maternal-placental-fetal oxidative, immune, endocrine and metabolic pathways in a manner that may ultimately accelerate cellular dysfunction, ageing and disease susceptibility over the lifespan. This perspectives paper provides an overview of each of the elements underlying this hypothesis, with an emphasis on recent developments, findings and future directions.This article is part of the theme issue 'Understanding diversity in telomere dynamics'. PMID- 29335388 TI - Association between clinical stage of oral cancer and expression of immunohistochemical markers. AB - AIM: The aim of this study is to demonstrate the possible correlation between the expression of examined protein markers - p53, EGFR, PCNA, p44/42 in the mass of the tumor and the clinical stage of disease. MATERIAL: 48 patients of the Department and Clinic of Oral and Maxillofacial Surgery, Lublin diagnosed with oral cancer. The control group consisted of 10 patients diagnosed with leukoplakia lesions in the oral cavity. The methods: Immunohistochemical analysis using the detection system DAKO K5007 Cat - Dako REAL TM Detection System, Peroxidase DAB +, Rabbit / Mouse. RESULTS: Based upon the statistical results, significant correlation between p53 protein and tumor staging; however, a correlation between the level of expression of EGFR, p44/42, PCNA and staging was not likewise revealed. CONCLUSIONS: Looking for oral squamous cell carcinoma markers remains an actual issue. Identification of specific markers of oral cancer could be used in screening the population, determining prognosis and response to treatment. PMID- 29335389 TI - Checklist in colorectal surgery - proposal of experts of the Polish Club of Coloproctology and National Consultant in general surgery. AB - A checklist is a collection of information that helps reduce the risk of failure due to limitations in human memory and attention. In surgery, the first Surgical Safety Checklist (SSC), created under the supervision of WHO (World Health Organization), was established in 2007 and covers three stages related to the patient's stay in the operating theater and operation: 1. Prior to initiation (induction) of anesthesia; 2. before cutting the skin; 3. before the patient leaves the operating room Colorectal surgery is particularly at high risk for complications and relatively high mortality. Elimination or, more likely, reducing the risk of complications by standardizing perioperative procedures may be particularly important in this group. The introduction of "dedicated" colorectal checklist surgery seems to be justified. The checklist proposed by the authors in colorectal surgery is divided into four stages, in which conscientious completion of checklists is intended to reduce the potential risk of complications due to hospitalization and surgical treatment. The presented checklist is obviously not closed, as a new publications or recommendations appear, some points may be modified, new issues may be added to the checklist. At present, however, it is a tool considering the well-known and confirmed elements of intraoperative procedures, the compliance of which may significantly reduce the rate of adverse events or surgical complications. PMID- 29335390 TI - Direct Trocar Insertion with Elevation of the Rectus Sheath in Bariatric Surgery: A Novel Technique. AB - INTRODUCTION: Initial trocar entry, the first step in laparoscopic surgery, is associated with several complications. In morbidly obese patients, initial trocar placement is associated with a greater number of complications compared to non obese patients. Materials and Surgical Technique. In this study, we describe our use of an initial trocar entry technique which is direct trocar insertion with elevation of the rectus sheath by a single Backhaus towel clamp and we would like to evaluate the sa fety and efficacy of its administration in bariatric surgery. DISCUSSION: Our results indicate that gaining initial trocar entry using our technique leads to successful laparoscopic bariatric surgery. Our technique is a safe, effective, and reliable first step in successful laparoscopic surgery for almost all patients, and is only contraindicated in patients with severe hepatomegaly. PMID- 29335391 TI - Renal vascularization anomalies in the Polish population. AB - : The aim of the study was to determine the incidence of renal venous system congenital anomalies in the Polish population. MATERIAL AND METHOD: Vascular kidney samples were investigated by means of preparations and X-ray contrasting. The study the group comprised 281 male and 269 female specimens. RESULTS: Congenital anomalies were diagnosed in 186 patients (33 8% of all cases), and they were more frequent in men than in women, albeit that difference was non significant. The following anomalies were most commonly observed: multiple venous variations on the right side (20.4%), retroaortic course of the left renal vein (4.2%), and circumaortic venous ring of the left renal vein (3.8%). Other anomalies were diagnosed in 1%-2% of cases. CONCLUSIONS: Awareness and preoperative assessment of the venous system before abdominal aortic surgery, isolated collection of renal venous blood samples, and urological or kidney transplantation procedures is essential. PMID- 29335392 TI - Cytoreductive surgery and HIPEC in the treatment of peritoneal metastases of sarcomas and other rare malignancies. AB - .................................... Cytoreductive surgery and HIPEC in the treatment of peritoneal metastases of sarcomas and other rare malignancies. PMID- 29335393 TI - Peritoneal metastases of colorectal origin - cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC). The financial aspect. AB - The incidence of peritoneal carcinomatosis of colorectal cancer amounts to 5%-15% for synchronous metastases and as much as 40% in cases of local recurrence. Best results are obtained for cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy (HIPEC). This treatment offers much better outcomes, leading to 5-year survival rates of as much as 30%-50%. The procedures require significant experience in abdominal surgery, are time-consuming (mean duration of the procedure ranging from 6 to 8 hours) and are burdened by complications that are due not only to the procedure itself but also to the intraperitoneal administration of the cytostatic drug at elevated temperature (41.5 degrees C). After the procedure, patients are required to be admitted to intensive care units due to potential complications associated with the extent and duration of the procedure as well as chemotherapy administered in hyperthermia. Postoperative management of these patients requires appropriate experience of the entire medical and nursing team. Cytoreductive surgeries combined with HIPEC as highly specialized medical procedures should be assessed for their potential long-term benefits and their costs should be appropriately calculated with consideration to realistic reimbursement rates. Realistic valuation and reimbursement covering the overall average cost of the procedure is recommended by the National Consultant in Surgical Oncology as well as the ESMO consensus guidelines. PMID- 29335394 TI - Landscape of oncoplastic breast surgery across Poland. AB - Oncoplastic and reconstructive techniques are essential tools in the armamentarium of contemporary breast surgeons. The aim of the study was to identify oncoplastic reconstructive patterns in breast cancer centers across Poland. A questionnaire of 18 questions was sent by email to the members of the Polish Society of Surgical Oncology and the Polish Society of Plastic, Reconstructive and Esthetic Surgery via their dedicated websites. The numbers of breast cancer patients operated on in each center ranged from 120 to 904 per year. Breast-conserving surgery (BCS) predominated in all but one center (range 50-70%). Immediate breast reconstructions (IBR) accounted for 6-42% of procedures, The most frequent type of IBR was either a two-stage expander followed by a permanent implant or one-stage implant- based with or without synthetic mesh. The most frequent type of delayed breast reconstruction (DBR) was a two-stage expander followed by implant-based reconstruction. None of the surveyed cancer centers performed free flap reconstruction. Deep inferior epigastric perforator (DIEP) flaps were performed in the plastic surgery department. Reconstructions based on pedicled flaps were performed in cancer centers. Acellular dermal matrices (ADM) and fat transfer were used in selected centers. In the clinical scenario of adjuvant radiotherapy, delayed breast reconstruction was favored. The full range of oncoplastic BCS was performed. Patient-reported outcome measures (PROM) and complications were assessed. Our findings can act as a platform for further improvement in skills, certification, data collection and audit, including patient reported expectation measures. There is also an urgent need to address pan-European inconsistencies in procedural reimbursement. PMID- 29335395 TI - Predictors of recanalization after endovascular treatment of posterior circulation aneurysms. AB - INTRODUCTION: Posterior circulation aneurysms account for approximately 30% of all intracranial aneurysms, and their rupture often causes aneurysmal subarachnoid hemorrhage (aSAH). Because surgical treatment of posterior circulation aneurysms is difficult, endovascular treatment is commonly indicated. However, simple coil embolization is associated with a high rate of recanalization. Our goal was to investigate morphometric aneurysmal features assessed on pre-embolization computed tomography angiography (CTA) as predictors of recanalization in patients with posterior circulation aneurysms. MATERIAL AND METHODS: We retrospectively analyzed data of 24 patients who underwent coil embolization due to rupture of saccular posterior circulation aneurysms. The morphometric features of aneurysms were measured based on pre-embolization 3D-CTA aneurysm models, and aneurysmal size and volume were measured on digital subtraction angiography (DSA) images. The effectiveness of initial endovascular treatment was determined visually with the modified Raymond Roy classification directly after embolization and on follow-up DSAs. Recanalization was diagnosed when, compared to the primary embolization aneurysm appearance, compaction and filling of the aneurysm occurred. Statistical analysis was performed with Statistica 13.1 software. RESULTS: Higher maximal aneurysm height perpendicular to the aneurysmal neck was associated with a greater aneurysm recanalization risk (12.12+/-5.13mm vs. 7.41+/-3.97mm, p=0.039), and this relationship remained significant after adjustment for patient's age, sex and aneurysm localization (OR=1.26, 95%CI: 1.01-1.60, p=0.047). Maximal aneurysm height perpendicular to the aneurysmal neck distinguished well between recanalized and non-recanalized aneurysms (AUC=0.755, 95%CI: 0.521- 0.989, p=0.033). CONCLUSIONS: Predictors of aneurysm recanalization can help choose best endovascular treatment strategies, which could reduce complication rates. PMID- 29335396 TI - Barogenic rupture of esophagus (Boerhaave syndrome) as diagnostic and therapeutic challenge requiring rapid and effective interdisciplinary cooperation - case report. AB - We describe a 47-year-old male who was admitted to our centre from a local emergency unit with septic shock due to suspected Boerhaave syndrome. After the diagnosis was confirmed, the patient underwent emergency surgery. Postoperatively, the patient had symptoms of acute alcoholic delirium, and developed an oesophagomediastinal fistula as the most serious local complication. Successful conservative treatment enabled complete healing of the fistula, leading to patient recovery. No late complications like oesophageal stenosis were found at 6 months from discharge. PMID- 29335397 TI - Pediatric Renal Transplantation: Focus on Current Transition Care and Proposal of the "RISE to Transition" Protocol. AB - The transition from pediatric to adult medical services is an important time in the life of an adolescent or young adult with a renal transplant. Failure of proper transition can lead to medical non-adherence and subsequent loss of graft and/or return to dialysis. The aim of this study was to conduct a systematic review and survey to assess the challenges and existing practices in transition of renal transplant recipient children to adult services, and to develop a transition protocol. We conducted a literature review and performed a survey of pediatric nephrologists across the United States to examine the current state of transition care. A structured transition protocol was developed based on these results. Our literature review revealed that a transition program has a positive impact on decline in renal function and acute rejection episodes, and may improve long-term graft outcomes in pediatric kidney transplant patients. With a response rate of 40% (60/150) from nephrologists in 56% (49/87) of centers, our survey shows inconsistent use of validated tools despite their availability, inefficient communication between teams, and lack of use of dedicated clinics. To address these issues, we developed the "RISE to Transition" protocol, which relies on 4 competency areas: Recognition, Insight, Self-reliance, and Establishment of healthy habits. The transition program decreases acute graft rejection episodes, and the main challenges in transition care are the communication gap between health care providers and inconsistent use of transition tools. Our RISE to transition protocol incorporates transition tools, defines personnel, and aims to improve communication between teams. PMID- 29335398 TI - Massive Post-Obstructive Diuresis. AB - BACKGROUND The purpose of presenting this case is to demonstrate the degree to which the kidney is capable of selectively excreting a massive load of sodium and water when challenged with both of these, without altering the plasma levels of other ions. CASE REPORT An 8-year-old boy was admitted in severe renal failure. Workup demonstrated a high grade obstruction of a single kidney. Following dialysis, the patient underwent surgery to correct the obstruction and he developed post-obstructive diuresis. Within one week he was receiving 34 liters of essentially 1/2 Na by IV and by mouth and was excreting 70% of his filtered load of water and 50% of his filtered load of sodium. As soon as the administered fluids and Na were cut back, the kidney responded appropriately. CONCLUSIONS While post-obstructive diuresis is a real phenomenon, very frequently it is magnified by forcing diuresis with the administration of too much water. These patients are best treated by administering fluids to equal output for two to three days and then gradually cutting back on fluid intake. If the kidney responds appropriately, then fluids can be given as the patient requests. PMID- 29335399 TI - Prevalence and Causes of Visual Impairment in Adults in Binhu District, Wuxi, China. AB - BACKGROUND Previously reported data has guided the treatment and prevention of blindness. This study aimed to evaluate the current prevalence and causes of visual impairment among adults who were 50 years old and older in the Binhu District of Wuxi City, China. MATERIAL AND METHODS A randomized sample of stratified clusters was used to analyze individuals from 30 basic sampling units in Wuxi Binhu District. Visual impairment was defined according to World Health Organization (WHO) standards. RESULTS A total of 6725 people who were at least 50 years old participated in this study. According to WHO standards, bilateral low vision and blindness prevalence were both higher in women than in men (low vision: 6.5% vs. 5.2%; and blindness: 1.4% vs. 0.8%; P=0.022 and P=0.039, respectively). The incidence of bilateral visual impairment increased significantly with age (P<0.001 and P<0.001, respectively). Further studies showed that the main causes of bilateral low vision were cataract, high myopic macular degeneration (MMD), and age-related macular degeneration (AMD). The main causes of bilateral blindness were cataract, MMD, and eye loss/atrophy, while the main causes of monocular low vision were cataract, MD, and AMD. The main causes of monocular blindness were cataract, eye loss/atrophy, and AMD. CONCLUSIONS The prevalence of low vision and blindness remains high in the Binhu District of Wuxi City in China, especially among older women. In our study, cataracts were the leading cause of visual impairment. Our study highlights that some efforts should be initiated to prevent and treat blindness and low vision. Additional causes of visual impairment were MMD, AMD, and eye loss/atrophy. PMID- 29335401 TI - Author Correction: Spiraling pathways of global deep waters to the surface of the Southern Ocean. AB - The original version of this Article contained errors in Fig. 6. In panel a, the grey highlights obscured the curves for CESM, CM2.6 and SOSE, and the labels indicating SWIR, KP, MR, PAR, and DP were inadvertently omitted. These have now been corrected in both the PDF and HTML versions of the Article. PMID- 29335400 TI - Causal associations between risk factors and common diseases inferred from GWAS summary data. AB - Health risk factors such as body mass index (BMI) and serum cholesterol are associated with many common diseases. It often remains unclear whether the risk factors are cause or consequence of disease, or whether the associations are the result of confounding. We develop and apply a method (called GSMR) that performs a multi-SNP Mendelian randomization analysis using summary-level data from genome wide association studies to test the causal associations of BMI, waist-to-hip ratio, serum cholesterols, blood pressures, height, and years of schooling (EduYears) with common diseases (sample sizes of up to 405,072). We identify a number of causal associations including a protective effect of LDL-cholesterol against type-2 diabetes (T2D) that might explain the side effects of statins on T2D, a protective effect of EduYears against Alzheimer's disease, and bidirectional associations with opposite effects (e.g., higher BMI increases the risk of T2D but the effect of T2D on BMI is negative). PMID- 29335402 TI - A partially-open inward-facing intermediate conformation of LeuT is associated with Na+ release and substrate transport. AB - Neurotransmitter:sodium symporters (NSS), targets of antidepressants and psychostimulants, clear neurotransmitters from the synaptic cleft through sodium (Na+)-coupled transport. Substrate and Na+ are thought to be transported from the extracellular to intracellular space through an alternating access mechanism by coordinated conformational rearrangements in the symporter that alternately expose the binding sites to each side of the membrane. However, the mechanism by which the binding of ligands coordinates conformational changes occurring on opposite sides of the membrane is not well understood. Here, we report the use of single-molecule fluorescence resonance energy transfer (smFRET) techniques to image transitions between distinct conformational states on both the extracellular and intracellular sides of the prokaryotic NSS LeuT, including partially open intermediates associated with transport activity. The nature and functional context of these hitherto unidentified intermediate states shed new light on the allosteric mechanism that couples substrate and Na+ symport by the NSS family through conformational dynamics. PMID- 29335403 TI - Floats with bio-optical sensors reveal what processes trigger the North Atlantic bloom. AB - The North Atlantic bloom corresponds to a strong seasonal increase in phytoplankton that produces organic carbon through photosynthesis. It is still debated what physical and biological conditions trigger the bloom, because comprehensive time series of the vertical distribution of phytoplankton biomass are lacking. Vertical profiles from nine floats that sampled the waters of the North Atlantic every few days for a couple of years reveal that phytoplankton populations start growing in early winter at very weak rates. A proper bloom with rapidly accelerating population growth rates instead starts only in spring when atmospheric cooling subsides and the mixed layer rapidly shoals. While the weak accumulation of phytoplankton in winter is crucial to maintaining a viable population, the spring bloom dominates the overall seasonal production of organic carbon. PMID- 29335404 TI - Publisher Correction: Second-order spectral lineshapes from charged interfaces. AB - The original version of this Article contained an error in Equation 3b. A ' + ' sign incorrectly appeared instead of a '-' sign in the denominator of the right hand side of the equation and incorrectly read:[Formula: see text]The correct form of the equation is as follows:[Formula: see text]This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29335405 TI - Author Correction: Myoblasts and macrophages are required for therapeutic morpholino antisense oligonucleotide delivery to dystrophic muscle. AB - In the original version of this Article, financial support was not fully acknowledged. The PDF and HTML versions of the Article have now been corrected to include support from the CRI Light Microscopy and Image Analysis Core. PMID- 29335406 TI - Thalidomide plus prednisone with or without danazol therapy in myelofibrosis: a retrospective analysis of incidence and durability of anemia response. AB - Low-dose thalidomide and prednisone alone or combined are effective therapies in some persons with primary myelofibrosis (PMF) and anemia with or with RBC transfusion dependence. Danazol is also effective in some persons with PMF and anemia. Responses to these drugs are typically incomplete and not sustained. It is unclear whether adding danazol to thalidomide and prednisone would improve efficacy. We retrospectively compared the outcomes of 88 subjects with PMF and anemia receiving thalidomide and prednisone without (n = 46) or with danazol (n = 42). The primary end point was anemia response, which was 71% (95% confidence interval (CI), 57, 85%) in subjects receiving thalidomide/prednisone/danazol compared with 46% (32, 60%; P = 0.014) in those receiving thalidomide/prednisone. Response rates in subjects who were RBC transfusion dependent was also higher in the danazol cohort (61% (38, 84%)) vs. 25% (6, 44%); P = 0.024). Time to response was rapid (median, 2 months (range, 1-11 months)) and similar between the cohorts. Response duration was longer in the thalidomide/prednisone/danazol cohort (HR 2.18 (1.18-5.42); P = 0.019). Adverse effects were mild and similar between the cohorts. In conclusion, thalidomide/prednisone/danazol seems superior to thalidomide/prednisone in persons with PMF and anemia. Our conclusion requires confirmation in a randomized trial. PMID- 29335407 TI - Radical asymmetric intramolecular alpha-cyclopropanation of aldehydes towards bicyclo[3.1.0]hexanes containing vicinal all-carbon quaternary stereocenters. AB - The development of a general catalytic method for the direct and stereoselective construction of cyclopropanes bearing highly congested vicinal all-carbon quaternary stereocenters remains a formidable challenge in chemical synthesis. Here, we report an intramolecular radical cyclopropanation of unactivated alkenes with simple alpha-methylene group of aldehydes as C1 source via a Cu(I)/secondary amine cooperative catalyst, which enables the single-step construction of bicyclo[3.1.0]hexane skeletons with excellent efficiency, broad substrate scope covering various terminal, internal alkenes as well as diverse (hetero)aromatic, alkenyl, alkyl-substituted geminal alkenes. Moreover, this reaction has been successfully realized to an asymmetric transformation, providing an attractive approach for the construction of enantioenriched bicyclo[3.1.0]hexanes bearing two crucial vicinal all-carbon quaternary stereocenters with good to excellent enantioselectivity. The utility of this method is illustrated by facile transformations of the products into various useful chiral synthetic intermediates. Preliminary mechanistic studies support a stepwise radical process for this formal [2 + 1] cycloaddition. PMID- 29335408 TI - Escape from thymic deletion and anti-leukemic effects of T cells specific for hematopoietic cell-restricted antigen. AB - Whether hematopoietic cell-restricted distribution of antigens affects the degree of thymic negative selection has not been investigated in detail. Here, we show that T cells specific for hematopoietic cell-restricted antigens (HRA) are not completely deleted in the thymus, using the mouse minor histocompatibility antigen H60, the expression of which is restricted to hematopoietic cells. As a result, low avidity T cells escape from thymic deletion. This incomplete thymic deletion occurs to the T cells developing de novo in the thymus of H60-positive recipients in H60-mismatched bone marrow transplantation (BMT). H60-specific thymic deletion escapee CD8+ T cells exhibit effector differentiation potentials in the periphery and contribute to graft-versus-leukemia effects in the recipients of H60-mismatched BMT, regressing H60+ hematological tumors. These results provide information essential for understanding thymic negative selection and developing a strategy to treat hematological tumors. PMID- 29335409 TI - Electric-field control of anomalous and topological Hall effects in oxide bilayer thin films. AB - One of the key goals in spintronics is to tame the spin-orbit coupling (SOC) that links spin and motion of electrons, giving rise to intriguing magneto-transport properties in itinerant magnets. Prominent examples of such SOC-based phenomena are the anomalous and topological Hall effects. However, controlling them with electric fields has remained unachieved since an electric field tends to be screened in itinerant magnets. Here we demonstrate that both anomalous and topological Hall effects can be modulated by electric fields in oxide heterostructures consisting of ferromagnetic SrRuO3 and nonmagnetic SrIrO3. We observe a clear electric field effect only when SrIrO3 is inserted between SrRuO3 and a gate dielectric. Our results establish that strong SOC of nonmagnetic materials such as SrIrO3 is essential in electrical tuning of these Hall effects and possibly other SOC-related phenomena. PMID- 29335410 TI - Abnormal phase transition between two-dimensional high-density liquid crystal and low-density crystalline solid phases. AB - Some two-dimensional liquid systems are theoretically predicted to have an anomalous phase transition due to unique intermolecular interactions, for example the first-order transition between two-dimensional high-density water and low density amorphous ice. However, it has never been experimentally observed, to the best of our knowledge. Here we report an entropy-driven phase transition between a high-density liquid crystal and low-density crystalline solid, directly observed by scanning tunneling microscope in carbon monoxide adsorbed on Cu(111). Combined with first principle calculations, we find that repulsive dipole-dipole interactions between carbon monoxide molecules lead to unconventional thermodynamics. This finding of unconventional thermodynamics in two-dimensional carbon monoxide not only provides a platform to study the fundamental principles of anomalous phase transitions in two-dimensional liquids at the atomic scale, but may also help to design and develop more efficient copper-based catalysis. PMID- 29335411 TI - Reconfiguring crystal and electronic structures of MoS2 by substitutional doping. AB - Doping of traditional semiconductors has enabled technological applications in modern electronics by tailoring their chemical, optical and electronic properties. However, substitutional doping in two-dimensional semiconductors is at a comparatively early stage, and the resultant effects are less explored. In this work, we report unusual effects of degenerate doping with Nb on structural, electronic and optical characteristics of MoS2 crystals. The doping readily induces a structural transformation from naturally occurring 2H stacking to 3R stacking. Electronically, a strong interaction of the Nb impurity states with the host valence bands drastically and nonlinearly modifies the electronic band structure with the valence band maximum of multilayer MoS2 at the Gamma point pushed upward by hybridization with the Nb states. When thinned down to monolayers, in stark contrast, such significant nonlinear effect vanishes, instead resulting in strong and broadband photoluminescence via the formation of exciton complexes tightly bound to neutral acceptors. PMID- 29335412 TI - Phosphorylation-induced conformation of beta2-adrenoceptor related to arrestin recruitment revealed by NMR. AB - The C-terminal region of G-protein-coupled receptors (GPCRs), stimulated by agonist binding, is phosphorylated by GPCR kinases, and the phosphorylated GPCRs bind to arrestin, leading to the cellular responses. To understand the mechanism underlying the formation of the phosphorylated GPCR-arrestin complex, we performed NMR analyses of the phosphorylated beta2-adrenoceptor (beta2AR) and the phosphorylated beta2AR-beta-arrestin 1 complex, in the lipid bilayers of nanodisc. Here we show that the phosphorylated C-terminal region adheres to either the intracellular side of the transmembrane region or lipids, and that the phosphorylation of the C-terminal region allosterically alters the conformation around M2155.54 and M2796.41, located on transemembrane helices 5 and 6, respectively. In addition, we found that the conformation induced by the phosphorylation is similar to that corresponding to the beta-arrestin-bound state. The phosphorylation-induced structures revealed in this study propose a conserved structural motif of GPCRs that enables beta-arrestin to recognize dozens of GPCRs. PMID- 29335413 TI - Heliconical smectic phases formed by achiral molecules. AB - Chiral symmetry breaking in soft matter is a hot topic of current research. Recently, such a phenomenon was found in a fluidic phase showing orientational order of molecules-the nematic phase; although built of achiral molecules, the phase can exhibit structural chirality-average molecular direction follows a short-pitch helix. Here, we report a series of achiral asymmetric dimers with an odd number of atoms in the spacer, which form twisted structures in nematic as well as in lamellar phases. The tight pitch heliconical nematic (NTB) phase and heliconical tilted smectic C (SmCTB) phase are formed. The formation of a variety of helical structures is accompanied by a gradual freezing of molecular rotation. In the lowest temperature smectic phase, HexI, the twist is expressed through the formation of hierarchical structure: nanoscale helices and mesoscopic helical filaments. The short-pitch helical structure in the smectic phases is confirmed by resonant X-ray measurements. PMID- 29335414 TI - Evolutionary history of Coleoptera revealed by extensive sampling of genes and species. AB - Beetles (Coleoptera) are the most diverse and species-rich group of insects, and a robust, time-calibrated phylogeny is fundamental to understanding macroevolutionary processes that underlie their diversity. Here we infer the phylogeny and divergence times of all major lineages of Coleoptera by analyzing 95 protein-coding genes in 373 beetle species, including ~67% of the currently recognized families. The subordinal relationships are strongly supported as Polyphaga (Adephaga (Archostemata, Myxophaga)). The series and superfamilies of Polyphaga are mostly monophyletic. The species-poor Nosodendridae is robustly recovered in a novel position sister to Staphyliniformia, Bostrichiformia, and Cucujiformia. Our divergence time analyses suggest that the crown group of extant beetles occurred ~297 million years ago (Mya) and that ~64% of families originated in the Cretaceous. Most of the herbivorous families experienced a significant increase in diversification rate during the Cretaceous, thus suggesting that the rise of angiosperms in the Cretaceous may have been an 'evolutionary impetus' driving the hyperdiversity of herbivorous beetles. PMID- 29335415 TI - USP48 restrains resection by site-specific cleavage of the BRCA1 ubiquitin mark from H2A. AB - BRCA1-BARD1-catalyzed ubiquitination of histone H2A is an important regulator of the DNA damage response, priming chromatin for repair by homologous recombination. However, no specific deubiquitinating enzymes (DUBs) are known to antagonize this function. Here we identify ubiquitin specific protease-48 (USP48) as a H2A DUB, specific for the C-terminal BRCA1 ubiquitination site. Detailed biochemical analysis shows that an auxiliary ubiquitin, an additional ubiquitin that itself does not get cleaved, modulates USP48 activity, which has possible implications for its regulation in vivo. In cells we reveal that USP48 antagonizes BRCA1 E3 ligase function and in BRCA1-proficient cells loss of USP48 results in positioning 53BP1 further from the break site and in extended resection lengths. USP48 repression confers a survival benefit to cells treated with camptothecin and its activity acts to restrain gene conversion and mutagenic single-strand annealing. We propose that USP48 promotes genome stability by antagonizing BRCA1 E3 ligase function. PMID- 29335416 TI - Lack of pronounced changes in the expression of fatty acid handling proteins in adipose tissue and plasma of morbidly obese humans. AB - BACKGROUND/OBJECTIVES: Fatty acid handling proteins are involved in the process of accumulation of lipids in different fat tissue depots. Thus, the aim of the study was to estimate the expression of both fatty acid transport and binding proteins in the subcutaneous (SAT) and visceral adipose tissue (VAT) of patients with morbid obesity without metabolic syndrome, as well as the plasma concentrations of these transporters. SUBJECTS/METHODS: Protein (Western blotting) and mRNA (Real-time PCR) expression of selected fatty acid handling proteins was assessed in the visceral and subcutaneous adipose tissue of 30 patients with morbid obesity. The control group consisted of 10 lean age-matched patients. Plasma levels of fatty acid protein transporters were also evaluated using ELISA method. Moreover, total plasma fatty acid composition and concentration was determined by gas-liquid chromatography (GLC). RESULTS: Significant increase in fatty acid translocase (FAT/CD36) mRNA (P = 0.03) and plasmalemmal (P = 0.01) expression was observed in VAT of patients with morbid obesity vs. lean subjects together with elevation of lipoprotein lipase (LPL), as well as peroxisome proliferator-activated receptor gamma (PPARgamma) in both examined compartments of adipose tissue. Moreover, in obese subjects plasma concentration of RBP4 was markedly elevated (P = 0.04) and sCD36 level presented a tendency for an increase (P = 0.08) with concomitant lack of changes in FABP4 concentration (P > 0.05). CONCLUSIONS: Fatty acid transport into adipocytes may be, at least in part, related to the increased expression of FAT/CD36 in the VAT of morbidly obese patients, which is accompanied by augmented expression of LPL, as well as PPARgamma. Probably, alternations in plasma concentrations of RBP4 and sCD36 in obese patients are associated with "unhealthy" fat distribution. PMID- 29335417 TI - Europe's lost forests: a pollen-based synthesis for the last 11,000 years. AB - 8000 years ago, prior to Neolithic agriculture, Europe was mostly a wooded continent. Since then, its forest cover has been progressively fragmented, so that today it covers less than half of Europe's land area, in many cases having been cleared to make way for fields and pasture-land. Establishing the origin of Europe's current, more open land-cover mosaic requires a long-term perspective, for which pollen analysis offers a key tool. In this study we utilise and compare three numerical approaches to transforming pollen data into past forest cover, drawing on >1000 14C-dated site records. All reconstructions highlight the different histories of the mixed temperate and the northern boreal forests, with the former declining progressively since ~6000 years ago, linked to forest clearance for agriculture in later prehistory (especially in northwest Europe) and early historic times (e.g. in north central Europe). In contrast, extensive human impact on the needle-leaf forests of northern Europe only becomes detectable in the last two millennia and has left a larger area of forest in place. Forest loss has been a dominant feature of Europe's landscape ecology in the second half of the current interglacial, with consequences for carbon cycling, ecosystem functioning and biodiversity. PMID- 29335418 TI - Gender-specific association of early age-related macular degeneration with systemic and genetic factors in a Japanese population. AB - The Tsuruoka Metabolomics Cohort Study included subjects aged 35-74 years from participants in annual health check-up programs in Tsuruoka, Japan. The gender specific associations of early age-related macular degeneration (AMD) with systemic and genetic factors was assessed cross-sectionally. Of these, 3,988 subjects had fundus photographs of sufficient quality, and early AMD was present in 12.3% and 10.3% of men and women, respectively. In men, higher levels of high density lipoprotein cholesterol and lower levels of triglycerides were associated with increased odds of having early AMD after adjusting for potential risk factors (for each 1 mmol/L increase, odds ratio [OR]: 1.61 and 0.78, 95% confidence interval [CI]: 1.17-2.23 and 0.64-0.96, respectively). In women, higher levels of total cholesterol and low-density lipoprotein cholesterol were associated with increased risk of having early AMD (OR: 1.21 and 1.26, 95% CI: 1.01-1.44 and 1.03-1.53, respectively). Sub-analysis demonstrated that women with ARMS2 A69S polymorphisms had a stronger risk for early AMD (OR: 3.25, 95% CI: 2.10-5.04) than men (OR: 1.65, 95% CI: 1.02-2.69). Differential associations of early AMD with both systemic and genetic factors by sex were demonstrated in a Japanese cohort, which suggests that disease process of early AMD could be different by sex. PMID- 29335419 TI - A Global View of Transcriptome Dynamics During Male Floral Bud Development in Populus tomentosa. AB - To obtain a comprehensive overview of the dynamic transcriptome during male floral bud development in Populus tomentosa, high-throughput RNA-seq was conducted during eight flowering-related stages. Among the 109,212 de novo assembled unigenes, 6,959 were differentially expressed during the eight stages. The overrepresented classed of genes identified by Gene Ontology (GO) enrichment included 'response to environmental stimuli' and 'plant-type spore development'. One-third of the differentially expressed genes were transcription factors (TFs). Several genes and gene families were analyzed in depth, including MADS-box TFs, Squamosa promoter binding protein-like family, receptor-like kinases, FLOWERING LOCUS T/TERMINAL-FLOWER-LIKE 1 family, key genes involved in anther and tapetum development, as well as LEAFY, WUSCHEL and CONSTANS. The results provided new insights into the roles of these and other well known gene families during the annual flowering cycle. To explore the mechanisms regulating poplar flowering, a weighted gene co-expression network was constructed using 98 floral-related genes involved in flower meristem identity and flower development. Many modules of co expressed genes and hub genes were identified, such as APETALA1 and HUA1. This work provides many new insights on the annual flowering cycle in a perennial plant, and a major new resource for plant biology and biotechnology. PMID- 29335420 TI - Lamina Cribrosa Morphology Predicts Progressive Retinal Nerve Fiber Layer Loss In Eyes with Suspected Glaucoma. AB - Although early diagnosis and treatment reduce the risk of blindness from glaucoma, the decision on whether or not to begin treatment in patients with suspected glaucoma is often a dilemma because the majority of patients never develop definite glaucoma. A growing body of evidences suggests that posterior bowing of the lamina cribrosa (LC) is the earliest structural change preceding the retinal nerve fiber layer (RNFL) loss in glaucomatous optic neuropathy. Based on this notion, we conducted a prospective study enrolling 87 eyes suspected of having glaucoma to investigate whether the future rate of RNFL loss is associated with the baseline LC curve evaluated by measuring the LC curve index (LCCI) using enhanced depth imaging optical coherence tomography. A faster rate of RNFL loss was significantly associated with greater LCCI (P < 0.001;standardized coefficient beta = -0.392), older age (P = 0.008;beta = -0.314), and greater vertical cup-to-disc ratio (P = 0.040;beta = -0.233). Assessment of LC morphology may help predict the disease outcome in eyes with suspected glaucoma. PMID- 29335421 TI - Hydroacoustics as a tool to examine the effects of Marine Protected Areas and habitat type on marine fish communities. AB - Hydroacoustic technologies are widely used in fisheries research but few studies have used them to examine the effects of Marine Protected Areas (MPAs). We evaluate the efficacy of hydroacoustics to examine the effects of closure to fishing and habitat type on fish populations in the Cabo Pulmo National Park (CPNP), Mexico, and compare these methods to Underwater Visual Censuses (UVC). Fish density, biomass and size were all significantly higher inside the CPNP (299%, 144% and 52% respectively) than outside in non-MPA control areas. These values were much higher when only accounting for the reefs within the CPNP (4715%, 6970% and 97% respectively) highlighting the importance of both habitat complexity and protection from fishing for fish populations. Acoustic estimates of fish biomass over reef-specific sites did not differ significantly from those estimated using UVC data, although acoustic densities were less due to higher numbers of small fish recorded by UVC. There is thus considerable merit in nesting UVC surveys, also providing species information, within hydroacoustic surveys. This study is a valuable starting point in demonstrating the utility of hydroacoustics to assess the effects of coastal MPAs on fish populations, something that has been underutilised in MPA design, formation and management. PMID- 29335422 TI - Lifetime-preserving reference models for characterizing spreading dynamics on temporal networks. AB - To study how a certain network feature affects processes occurring on a temporal network, one often compares properties of the original network against those of a randomized reference model that lacks the feature in question. The randomly permuted times (PT) reference model is widely used to probe how temporal features affect spreading dynamics on temporal networks. However, PT implicitly assumes that edges and nodes are continuously active during the network sampling period - an assumption that does not always hold in real networks. We systematically analyze a recently-proposed restriction of PT that preserves node lifetimes (PTN), and a similar restriction (PTE) that also preserves edge lifetimes. We use PT, PTN, and PTE to characterize spreading dynamics on (i) synthetic networks with heterogeneous edge lifespans and tunable burstiness, and (ii) four real world networks, including two in which nodes enter and leave the network dynamically. We find that predictions of spreading speed can change considerably with the choice of reference model. Moreover, the degree of disparity in the predictions reflects the extent of node/edge turnover, highlighting the importance of using lifetime-preserving reference models when nodes or edges are not continuously present in the network. PMID- 29335423 TI - Evaluation of the effects of space allowance on measures of animal welfare in laboratory mice. AB - We studied how space allowance affects measures of animal welfare in mice by systematically varying group size and cage type across three levels each in both males and females of two strains of mice (C57BL/6ByJ and BALB/cByJ; n = 216 cages, a total of 1152 mice). This allowed us to disentangle the effects of total floor area, group size, stocking density, and individual space allocation on a broad range of measures of welfare, including growth (food and water intake, body mass); stress physiology (glucocorticoid metabolites in faecal boli); emotionality (open field behaviour); brain function (recurrent perseveration in a two-choice guessing task); and home-cage behaviour (activity, stereotypic behaviour). While increasing group size was associated with a decrease in food and water intake in general, and more specifically with increased attrition due to escalated aggression in male BALB mice, no other consistent effects of any aspect of space allowance were found with respect to the measures studied here. Our results indicate that within the range of conditions commonly found in laboratory mouse housing, space allowance as such has little impact on measures of welfare, except for group size which may be a risk factor for escalating aggression in males of some strains. PMID- 29335424 TI - Functionalisation of Detonation Nanodiamond for Monodispersed, Soluble DNA Nanodiamond Conjugates Using Mixed Silane Bead-Assisted Sonication Disintegration. AB - Nanodiamonds have many attractive properties that make them suitable for a range of biological applications, but their practical use has been limited because nanodiamond conjugates tend to aggregate in solution during or after functionalisation. Here we demonstrate the production of DNA-detonation nanodiamond (DNA-DND) conjugates with high dispersion and solubility using an ultrasonic, mixed-silanization chemistry protocol based on the in situ Bead Assisted Sonication Disintegration (BASD) silanization method. We use two silanes to achieve these properties: (1) 3-(trihydroxysilyl)propyl methylphosphonate (THPMP); a negatively charged silane that imparts high zeta potential and solubility in solution; and (2) (3-aminopropyl)triethoxysilane (APTES); a commonly used functional silane that contributes an amino group for subsequent bioconjugation. We target these amino groups for covalent conjugation to thiolated, single-stranded DNA oligomers using the heterobifunctional crosslinker sulfosuccinimidyl 4-(N-maleimidomethyl)cyclohexane-1-carboxylate (Sulfo-SMCC). The resulting DNA-DND conjugates are the smallest reported to date, as determined by Dynamic Light Scattering (DLS) and Atomic Force Microscopy (AFM). The functionalisation method we describe is versatile and can be used to produce a wide variety of soluble DND-biomolecule conjugates. PMID- 29335426 TI - Author Correction: Intensification of terrestrial carbon cycle related to El Nino Southern Oscillation under greenhouse warming. AB - In the original version of this Article, the affiliation for Su-Jon Jeong was incorrectly given as 'Southern University of Science and Technology of China (SUSTECH)', instead of 'Southern University of Science and Technology (SUSTECH)'. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29335425 TI - SPARC expression is associated with hepatic injury in rodents and humans with non alcoholic fatty liver disease. AB - Mechanisms that control progression from simple steatosis to steato-hepatitis and fibrosis in patients with non-alcoholic fatty liver disease (NAFLD) are unknown. SPARC, a secreted matricellular protein, is over-expressed in the liver under chronic injury. Contribution of SPARC accumulation to disease severity is largely unknown in NAFLD. We assessed the hypothesis that SPARC is increased in livers with more necrosis and inflammation and could be associated with more fibrosis. qrt-PCR, immunohistochemistry, and ELISA were employed to localize and quantify changes in SPARC in 62 morbidly obese patients with NAFLD/NASH and in a mouse model of diet-induced-NASH. Results were correlated with the severity of NAFLD/NASH. In obese patients 2 subgroups were identified with either high SPARC expression (n = 16) or low SPARC expression (n = 46) in the liver, with a cutoff of 1.2 fold expression. High expression of SPARC paralleled hepatocellular damage and increased mRNA expression of pro-fibrogenic factors in the liver. In line with these findings, in the NASH animal model SPARC knockout mice were protected from inflammatory injury, and showed less inflammation and fibrosis. Hepatic SPARC expression is associated with liver injury and fibrogenic processes in NAFLD. SPARC has potential as preventive or therapeutic target in NAFLD patients. PMID- 29335427 TI - Chronic alcohol exposure disrupts top-down control over basal ganglia action selection to produce habits. AB - Addiction involves a predominance of habitual control mediated through action selection processes in dorsal striatum. Research has largely focused on neural mechanisms mediating a proposed progression from ventral to dorsal lateral striatal control in addiction. However, over reliance on habit striatal processes may also arise from reduced cortical input to striatum, thereby disrupting executive control over action selection. Here, we identify novel mechanisms through which chronic intermittent ethanol exposure and withdrawal (CIE) disrupts top-down control over goal-directed action selection processes to produce habits. We find CIE results in decreased excitability of orbital frontal cortex (OFC) excitatory circuits supporting goal-directed control, and, strikingly, selectively reduces OFC output to the direct output pathway in dorsal medial striatum. Increasing the activity of OFC circuits restores goal-directed control in CIE-exposed mice. Our findings show habitual control in alcohol dependence can arise through disrupted communication between top-down, goal-directed processes onto basal ganglia pathways controlling action selection. PMID- 29335428 TI - Analysis of the HIV-2 protease's adaptation to various ligands: characterization of backbone asymmetry using a structural alphabet. AB - The HIV-2 protease (PR2) is a homodimer of 99 residues with asymmetric assembly and binding various ligands. We propose an exhaustive study of the local structural asymmetry between the two monomers of all available PR2 structures complexed with various inhibitors using a structural alphabet approach. On average, PR2 exhibits asymmetry in 31% of its positions-i.e., exhibiting different backbone local conformations in the two monomers. This asymmetry was observed all along its structure, particularly in the elbow and flap regions. We first differentiated structural asymmetry conserved in most PR2 structures from the one specific to some PR2. Then, we explored the origin of the detected asymmetry in PR2. We localized asymmetry that could be induced by PR2's flexibility, allowing transition from the semi-open to closed conformations and the asymmetry potentially induced by ligand binding. This latter could be important for the PR2's adaptation to diverse ligands. Our results highlighted some differences between asymmetry of PR2 bound to darunavir and amprenavir that could explain their differences of affinity. This knowledge is critical for a better description of PR2's recognition and adaptation to various ligands and for a better understanding of the resistance of PR2 to most PR2 inhibitors, a major antiretroviral class. PMID- 29335429 TI - RFA Guardian: Comprehensive Simulation of Radiofrequency Ablation Treatment of Liver Tumors. AB - The RFA Guardian is a comprehensive application for high-performance patient specific simulation of radiofrequency ablation of liver tumors. We address a wide range of usage scenarios. These include pre-interventional planning, sampling of the parameter space for uncertainty estimation, treatment evaluation and, in the worst case, failure analysis. The RFA Guardian is the first of its kind that exhibits sufficient performance for simulating treatment outcomes during the intervention. We achieve this by combining a large number of high-performance image processing, biomechanical simulation and visualization techniques into a generalized technical workflow. Further, we wrap the feature set into a single, integrated application, which exploits all available resources of standard consumer hardware, including massively parallel computing on graphics processing units. This allows us to predict or reproduce treatment outcomes on a single personal computer with high computational performance and high accuracy. The resulting low demand for infrastructure enables easy and cost-efficient integration into the clinical routine. We present a number of evaluation cases from the clinical practice where users performed the whole technical workflow from patient-specific modeling to final validation and highlight the opportunities arising from our fast, accurate prediction techniques. PMID- 29335430 TI - Transspinal Direct Current Stimulation Produces Persistent Plasticity in Human Motor Pathways. AB - The spinal cord is an integration center for descending, ascending, and segmental neural signals. Noninvasive transspinal stimulation may thus constitute an effective method for concomitant modulation of local and distal neural circuits. In this study, we established changes in cortical excitability and input/output function of corticospinal and spinal neural circuits before, at 0-15 and at 30-45 minutes after cathodal, anodal, and sham transspinal direct current stimulation (tsDCS) to the thoracic region in healthy individuals. We found that intracortical inhibition was different among stimulation polarities, however remained unchanged over time. Intracortical facilitation increased after cathodal and anodal tsDCS delivered with subjects seated, and decreased after cathodal tsDCS delivered with subjects lying supine. Both cathodal and anodal tsDCS increased corticospinal excitability, yet facilitation was larger and persisted for 30 minutes post stimulation only when cathodal tsDCS was delivered with subjects lying supine. Spinal input/output reflex function was decreased by cathodal and not anodal tsDCS. These changes may be attributed to altered spontaneous neural activity and membrane potentials of corticomotoneuronal cells by tsDCS involving similar mechanisms to those mediating motor learning. Our findings indicate that thoracic tsDCS has the ability to concomitantly alter cortical, corticospinal, and spinal motor output in humans. PMID- 29335431 TI - Synaptic localisation of SRF coactivators, MKL1 and MKL2, and their role in dendritic spine morphology. AB - The megakaryoblastic leukaemia (MKL) family are serum response factor (SRF) coactivators, which are highly expressed in the brain. Accordingly, MKL plays important roles in dendritic morphology, neuronal migration, and brain development. Further, nucleotide substitutions in the MKL1 and MKL2 genes are found in patients with schizophrenia and autism spectrum disorder, respectively. Thus, studies on the precise synaptic localisation and function of MKL in neurons are warranted. In this study, we generated and tested new antibodies that specifically recognise endogenously expressed MKL1 and MKL2 proteins in neurons. Using these reagents, we biochemically and immunocytochemically show that MKL1 and MKL2 are localised at synapses. Furthermore, shRNA experiments revealed that postsynaptic deletion of MKL1 or MKL2 reduced the percentage of mushroom- or stubby-type spines in cultured neurons. Taken together, our findings suggest that MKL1 and MKL2 are present at synapses and involved in dendritic spine maturation. This study may, at least in part, contribute to better understanding of the molecular mechanisms underlying MKL-mediated synaptic plasticity and neurological disorders. PMID- 29335432 TI - The relationship of dietary fish intake to diabetic retinopathy and retinal vascular caliber in patients with type 2 diabetes. AB - In this cross-sectional study, we evaluated the association of dietary fish intake with varying severity of diabetic retinopathy (DR) and retinal vascular caliber in Asians with type 2 diabetes mellitus. 357 Asians (median age: 58 years; 31% women; 78% Chinese) were recruited from a tertiary eye care institution in Singapore. Fish consumption was evaluated using a validated food frequency questionnaire. Digital retinal photographs assessed for DR severity and retinal vascular caliber. Ordered logistic and linear regression models were used to investigate the association of fish intake with DR severity and vascular caliber. Increasing frequency of fish consumption was significantly associated with lower odds of having severe DR (odds ratio [OR] = 0.91, 95% CI: 0.84-0.99 per 1-unit increase of fish intake; P = 0.038). Among those with no retinopathy, persons in quartile 4 fish intake had a wider retinal vascular caliber for arteriolar (beta = 22.27 um, 95% CI: 12.64-31.90; P-trend < 0.001) and venular (beta = 32.00 um, 95% CI: 17.56-46.43; P-trend < 0.001), than those in quartile 1 fish intake. Persons with higher fish intake had a decreased likelihood of having severe DR. In diabetics without retinopathy, higher fish intake was associated with wider retinal vascular caliber. Future research is needed to reinforce the direction of the casualty. PMID- 29335433 TI - Conformational Landscape of the PRKACA-DNAJB1 Chimeric Kinase, the Driver for Fibrolamellar Hepatocellular Carcinoma. AB - In fibrolamellar hepatocellular carcinoma a single genetic deletion results in the fusion of the first exon of the heat shock protein 40, DNAJB1, which encodes the J domain, with exons 2-10 of the catalytic subunit of protein kinase A, PRKACA. This produces an enzymatically active chimeric protein J-PKAcalpha. We used molecular dynamics simulations and NMR to analyze the conformational landscape of native and chimeric kinase, and found an ensemble of conformations. These ranged from having the J-domain tucked under the large lobe of the kinase, similar to what was reported in the crystal structure, to others where the J domain was dislodged from the core of the kinase and swinging free in solution. These simulated dislodged states were experimentally captured by NMR. Modeling of the different conformations revealed no obvious steric interactions of the J domain with the rest of the RIIbeta holoenzyme. PMID- 29335434 TI - Competitive influence maximization and enhancement of synchronization in populations of non-identical Kuramoto oscillators. AB - Many networked systems have evolved to optimize performance of function. Much literature has considered optimization of networks by central planning, but investigations of network formation amongst agents connecting to achieve non aligned goals are comparatively rare. Here we consider the dynamics of synchronization in populations of coupled non-identical oscillators and analyze adaptations in which individual nodes attempt to rewire network topology to optimize node-specific aims. We demonstrate that, even though individual nodes' goals differ very widely, rewiring rules in which each node attempts to connect to the rest of the network in such a way as to maximize its influence on the system can enhance synchronization of the collective. The observed speed-up of consensus finding in this competitive dynamics might explain enhanced synchronization in real world systems and shed light on mechanisms for improved consensus finding in society. PMID- 29335435 TI - Placental Morphology Is Associated with Maternal Depressive Symptoms during Pregnancy and Toddler Psychiatric Problems. AB - Maternal depressive symptoms during pregnancy predict increased psychiatric problems in children. The underlying biological mechanisms remain unclear. Hence, we examined whether alterations in the morphology of 88 term placentas were associated with maternal depressive symptoms during pregnancy and psychiatric problems in 1.9-3.1-years old (Mean = 2.1 years) toddlers. Maternal depressive symptoms were rated biweekly during pregnancy with the Center of Epidemiological Studies Depression Scale (n = 86). Toddler psychiatric problems were mother-rated with the Child Behavior Checklist (n = 60). We found that higher maternal depressive symptoms throughout pregnancy [B = -0.24 Standard Deviation (SD) units: 95% Confidence Interval (CI) = -0.46; -0.03: P = 0.03; Mean difference = 0.66 SDs; 95% CI = -0.08; -1.23: P = 0.03; between those with and without clinically relevant depressive symptoms] were associated with lower variability in the placental villous barrier thickness of gamma-smooth muscle actin-negative villi. This placental morphological change predicted higher total (B = -0.34 SDs: 95% CI = -0.60; -0.07: P = 0.01) and internalizing (B = -0.32 SDs: 95% CI = 0.56; -0.08: P = 0.01) psychiatric problems in toddlers. To conclude, our findings suggest that both maternal depressive symptoms during pregnancy and toddler psychiatric problems may be associated with lower variability in the villous membrane thickness of peripheral villi in term placentas. This lower heterogeneity may compromise materno-fetal exchange, suggesting a possible role for altered placental morphology in the fetal programming of mental disorders. PMID- 29335436 TI - Deregulated PP1alpha phosphatase activity towards MAPK activation is antagonized by a tumor suppressive failsafe mechanism. AB - The mitogen-activated protein kinase (MAPK) pathway is frequently aberrantly activated in advanced cancers, including metastatic prostate cancer (CaP). However, activating mutations or gene rearrangements among MAPK signaling components, such as Ras and Raf, are not always observed in cancers with hyperactivated MAPK. The mechanisms underlying MAPK activation in these cancers remain largely elusive. Here we discover that genomic amplification of the PPP1CA gene is highly enriched in metastatic human CaP. We further identify an S6K/PP1alpha/B-Raf signaling pathway leading to activation of MAPK signaling that is antagonized by the PML tumor suppressor. Mechanistically, we find that PP1alpha acts as a B-Raf activating phosphatase and that PML suppresses MAPK activation by sequestering PP1alpha into PML nuclear bodies, hence repressing S6K dependent PP1alpha phosphorylation, 14-3-3 binding and cytoplasmic accumulation. Our findings therefore reveal a PP1alpha/PML molecular network that is genetically altered in human cancer towards aberrant MAPK activation, with important therapeutic implications. PMID- 29335437 TI - Deubiquitinase USP13 dictates MCL1 stability and sensitivity to BH3 mimetic inhibitors. AB - MCL1 is a pivot member of the anti-apoptotic BCL-2 family proteins. While a distinctive feature of MCL1 resides in its efficient ubiquitination and destruction, the deubiquitinase USP9X has been implicated in the preservation of MCL1 expression by removing the polyubiquitin chains. Here we perform an unbiased siRNA screen and identify that the second deubiquitinase, USP13, regulates MCL1 stability in lung and ovarian cancer cells. Mechanistically, USP13 interacts with and stabilizes MCL1 via deubiquitination. As a result, USP13 depletion using CRISPR/Cas9 nuclease system inhibits tumor growth in xenografted nude mice. We further report that genetic or pharmacological inhibition of USP13 considerably reduces MCL1 protein abundance and significantly increases tumor cell sensitivity to BH3 mimetic inhibitors targeting BCL-2 and BCL-XL. Collectively, we nominate USP13 as a novel deubiquitinase which regulates MCL1 turnover in diverse solid tumors and propose that USP13 may be a potential therapeutic target for the treatment of various malignancies. PMID- 29335439 TI - Net global warming potential and greenhouse gas intensity as affected by different water management strategies in Chinese double rice-cropping systems. AB - This study provides a complete account of global warming potential (GWP) and greenhouse gas intensity (GHGI) in relation to a long-term water management experiment in Chinese double-rice cropping systems. The three strategies of water management comprised continuous (year-round) flooding (CF), flooding during the rice season but with drainage during the midseason and harvest time (F-D-F), and irrigation only for flooding during transplanting and the tillering stage (F-RF). The CH4 and N2O fluxes were measured with the static chamber method. Soil organic carbon (SOC) sequestration rates were estimated based on the changes in the carbon stocks during 1998-2014. Longer periods of soil flooding led to increased CH4 emissions, reduced N2O emissions, and enhanced SOC sequestration. The net GWPs were 22,497, 8,895, and 1,646 kg CO2-equivalent ha-1 yr-1 for the CF, F-D-F, and F-RF, respectively. The annual rice grain yields were comparable between the F-D-F and CF, but were reduced significantly (by 13%) in the F-RF. The GHGIs were 2.07, 0.87, and 0.18 kg CO2-equivalent kg-1 grain yr-1 for the CF, F-D-F, and F RF, respectively. These results suggest that F-D-F could be used to maintain the grain yields and simultaneously mitigate the climatic impact of double rice cropping systems. PMID- 29335440 TI - Co-action equilibrium fails to predict choices in mixed-strategy settings. AB - Social projection is the tendency to project one's own characteristics onto others. This phenomenon can potentially explain cooperation in prisoner's dilemma experiments and other social dilemmas. The social projection hypothesis has recently been formalized for symmetric games as co-action equilibrium and for general games as consistent evidential equilibrium. These concepts have been proposed to predict choice behavior in experimental one-shot games. We test the predictions of the co-action equilibrium concept in a simple binary minimizer game experiment. We find no evidence of social projection. PMID- 29335438 TI - Grey and white matter volumes either in treatment-naive or hormone-treated transgender women: a voxel-based morphometry study. AB - Many previous magnetic resonance imaging (MRI) studies have documented sex differences in brain morphology, but the patterns of sexual brain differences in transgender women - male sex assigned at birth - with a diagnosis of gender dysphoria (TW) have been rarely investigated to date. We acquired T1-weighted MRI data for the following four (n = 80) groups: treatment-naive TW (TNTW), TW treated with cross-sex hormones for at least one year (TTW), cisgender men, and cisgender women (cisgender individuals as controls). Differences in whole-brain and regional white matter volume and grey matter volume (GMV) were assessed using voxel-based morphometry. We found lower global brain volumes and regional GMVs in a large portion of the posterior-superior frontal cortex in the cisgender women group than in the TTW and cisgender men groups. Additionally, both transgender groups exhibited lower bilateral insular GMVs than the cisgender women group. Our results highlight differences in the insula in both transgender groups; such differences may be characteristic of TW. Furthermore, these alterations in the insula could be related to the neural network of body perception and reflect the distress that accompanies gender dysphoria. PMID- 29335441 TI - A Collective Route to Head and Neck Cancer Metastasis. AB - Distant metastasis (DM) from head and neck cancers (HNC) portends a poor patient prognosis. Despite its important biological role, little is known about the cells which seed these DM. Circulating tumour cells (CTCs) represent a transient cancer cell population, which circulate in HNC patients' peripheral blood and seed at distant sites. Capture and analysis of CTCs offers insights into tumour metastasis and can facilitate treatment strategies. Whilst the data on singular CTCs have shown clinical significance, the role of CTC clusters in metastasis remains limited. In this pilot study, we assessed 60 treatment naive HNC patients for CTCs with disease ranging from early to advanced stages, for CTC clusters utilizing spiral CTC enrichment technology. Single CTCs were isolated in 18/60 30% (Ranging from Stage I-IV), CTC clusters in 15/60-25% (exclusively Stage IV) with 3/15-20% of CTC clusters also containing leukocytes. The presence of CTC clusters associated with the development of distant metastatic disease(P = 0.0313). This study demonstrates that CTC clusters are found in locally advanced patients, and this may be an important prognostic marker. In vivo and in vitro studies are warranted to determine the role of these CTC clusters, in particular, whether leukocyte involvement in CTC clusters has clinical relevance. PMID- 29335442 TI - Nanostructural Differentiation and Toxicity of Amyloid-beta25-35 Aggregates Ensue from Distinct Secondary Conformation. AB - Amyloid nanostructures are originated from protein misfolding and aberrant aggregation, which is associated with the pathogenesis of many types of degenerative diseases, such as Alzheimer's disease (AD), Parkinson's disease (PD) and Huntington's disease. The secondary conformation of peptides is of a fundamental importance for aggregation and toxicity of amyloid peptides. In this work, Abeta25-35, a fragment of amyloid beta(1-42) (Abeta42), was selected to investigate the correlation between secondary structures and toxicity of amyloid fibrils. Furthermore, each aggregation assemblies show different cell membrane disruption and cytotoxicity. The structural analysis of amyloid aggregates originated from different secondary structure motifs is helpful to understand the mechanism of peptides/cell interactions in the pathogenesis of amyloid diseases. PMID- 29335444 TI - A Geodetic Strain Rate Model for the East African Rift System. AB - Here we describe the new Sub-Saharan Africa Geodetic Strain Rate Model v.1.0 (SSA GSRM v.1.0), which provides fundamental constraints on long-term tectonic deformation in the region and an improved seismic hazards assessment in Sub Saharan Africa. Sub-Saharan Africa encompasses the East African Rift System, the active divergent plate boundary between the Nubian and Somalian plates, where strain is largely accommodated along the boundaries of three subplates. We develop an improved geodetic strain rate field for sub-Saharan Africa that incorporates 1) an expanded geodetic velocity field, 2) redefined regions of deforming zones guided by seismicity distribution, and 3) updated constraints on block rotations. SSA-GSRM v.1.0 spans longitudes 22 degrees to 55.5 degrees and latitudes -52 degrees to 20 degrees with 0.25 degrees (longitude) by 0.2 degrees (latitude) spacing. For plates/sub-plates, we assign rigid block rotations as constraints on the strain rate calculation that is determined by fitting bicubic Bessel splines to a new geodetic velocity solution for an interpolated velocity gradient tensor field. We derive strain rates, velocities, and vorticity rates from the velocity gradient tensor field. A comparison with the Global Geodetic Strain Rate model v2.1 reveals regions of previously unresolved spatial heterogeneities in geodetic strain rate distribution, which indicates zones of elevated seismic risk. PMID- 29335443 TI - Elucidating the genomic architecture of Asian EGFR-mutant lung adenocarcinoma through multi-region exome sequencing. AB - EGFR-mutant lung adenocarcinomas (LUAD) display diverse clinical trajectories and are characterized by rapid but short-lived responses to EGFR tyrosine kinase inhibitors (TKIs). Through sequencing of 79 spatially distinct regions from 16 early stage tumors, we show that despite low mutation burdens, EGFR-mutant Asian LUADs unexpectedly exhibit a complex genomic landscape with frequent and early whole-genome doubling, aneuploidy, and high clonal diversity. Multiple truncal alterations, including TP53 mutations and loss of CDKN2A and RB1, converge on cell cycle dysregulation, with late sector-specific high-amplitude amplifications and deletions that potentially beget drug resistant clones. We highlight the association between genomic architecture and clinical phenotypes, such as co occurring truncal drivers and primary TKI resistance. Through comparative analysis with published smoking-related LUAD, we postulate that the high intra tumor heterogeneity observed in Asian EGFR-mutant LUAD may be contributed by an early dominant driver, genomic instability, and low background mutation rates. PMID- 29335445 TI - Trophic ecology of glass sponge reefs in the Strait of Georgia, British Columbia. AB - Sponges link the microbial loop with benthic communities by feeding on bacteria. Glass sponge reefs on the continental shelf of western Canada have extremely high grazing rates, consuming seven times more particulate carbon than can be supplied by vertical flux alone. Unlike many sponges, the reef building species Aphrocallistes vastus has no microbial symbionts and removes little dissolved organic carbon. To determine how reef sponges therefore get enough food to sustain such substantial grazing we measured stable carbon and nitrogen isotope signatures of water, sediment and sponge tissues. To ensure samples were temporally associated, we also studied the duration particles were retained in tissues in controlled feeding studies using microscopic beads and 13C-labeled bacteria. Although fecal pellets were expelled from sponges within 24 hours of feeding, intact bacteria were still found in tissues and sponge tissues retained elevated 13C levels for at least 14 days. These independent lines of evidence suggest that carbon in reef sponge tissues may reflect food consumed from days to weeks earlier. Stable isotope analysis suggests that heterotrophic bacteria ingested by the sponges comes from a confluence of trophic subsidies: from terrestrial and oceanic sources, and also potentially on sediment-borne bacteria resuspended by tidal currents. PMID- 29335446 TI - Experimental quantum simulation of fermion-antifermion scattering via boson exchange in a trapped ion. AB - Quantum field theories describe a variety of fundamental phenomena in physics. However, their study often involves cumbersome numerical simulations. Quantum simulators, on the other hand, may outperform classical computational capacities due to their potential scalability. Here we report an experimental realization of a quantum simulation of fermion-antifermion scattering mediated by bosonic modes, using a multilevel trapped ion, which is a simplified model of fermion scattering in both perturbative and non-perturbative quantum electrodynamics. The simulated model exhibits prototypical features in quantum field theory including particle pair creation and annihilation, as well as self-energy interactions. These are experimentally observed by manipulating four internal levels of a 171Yb+ trapped ion, where we encode the fermionic modes, and two motional degrees of freedom that simulate the bosonic modes. Our experiment establishes an avenue towards the efficient implementation of field modes, which may prove useful in studies of quantum field theories including non-perturbative regimes. PMID- 29335447 TI - Exposure to famine in early life and chronic kidney diseases in adulthood. AB - OBJECTIVE: Chronic kidney disease (CKD) is an increasing contributor to the global disease burden. Previous findings indicated that exposure to famine in early life was associated with various metabolic diseases and urinary protein levels. We aimed to assess whether the exposure to China's Great Famine 1959-1962 during fetal or childhood period was associated with glomerular filtration rate (GFR) and risk of CKD (eGFR<60 mL/min per 1.73 m2) in adulthood. MATERIALS AND METHODS: SPECT-China was a population-based observational study in 2014-2015. Totally, 5124 women were included from SPECT-China study. Based on the birth year, they were divided into fetal-exposed (1959-1962), childhood-exposed (1949 1958), adolescence/young adult-exposed (1921-1948), and non-exposed (1963-1974, reference). The estimated glomerular filtration rate (eGFR) was calculated according to the Chronic Kidney Disease Epidemiology Collaboration equation. CKD was defined as eGFR less than 60 mL/min per 1.73 m2. RESULTS: Compared with the non-exposed, fetal exposure to famine was significantly associated with lower eGFR (B -1.47, 95%CI -2.81, -1.13) and greater risk of having CKD (OR 2.85, 95%CI 1.25, 6.50) in the crude model adjusting age. Further adjustments for demographic variables, body mass index, diabetes, and blood pressure did not qualitatively change the association (eGFR B -1.35, 95%CI -2.67, -0.04; CKD OR 2.42, 95%CI 1.05, 5.58). This association was not found in childhood-exposed and adolescence/young adult-exposed individuals. CONCLUSIONS: Prenatal exposure to famine may have long-term effects on declined GFR and the development of CKD in humans. thus, fetal stage may be an important time window to prevent CKD in later life. PMID- 29335448 TI - Regional evaluation of childhood acute lymphoblastic leukemia genetic susceptibility loci among Japanese. AB - Genome-wide association studies (GWAS) performed mostly in populations of European and Hispanic ancestry have confirmed an inherited genetic basis for childhood acute lymphoblastic leukemia (ALL), but these associations are less clear in other races/ethnicities. DNA samples from ALL patients (aged 0-19 years) previously enrolled onto a Tokyo Children's Cancer Study Group trial were collected during 2013-2015, and underwent single nucleotide polymorphism (SNP) microarray genotyping resulting in 527 B-cell ALL for analysis. Cases and control data for 3,882 samples from the Nagahama Study Group and Aichi Cancer Center Study were combined, and association analyses across 10 previous GWAS-identified regions were performed after targeted SNP imputation. Linkage disequilibrium (LD) patterns in Japanese and other populations were evaluated using the varLD score based on 1000 Genomes data. Risk associations for ARID5B (rs10821936, OR = 1.84, P = 6 * 10-17) and PIP4K2A (rs7088318, OR = 0.76, P = 2 * 10-4) directly transferred to Japanese, and the IKZF1 association was detected by an alternate SNP (rs1451367, OR = 1.52, P = 2 * 10-6). Marked regional LD differences between Japanese and Europeans was observed for most of the remaining loci for which associations did not transfer, including CEBPE, CDKN2A, CDKN2B, and ELK3. This study represents a first step towards characterizing the role of genetic susceptibility in childhood ALL risk in Japanese. PMID- 29335449 TI - Transcriptome profile of NO-induced Arabidopsis transcription factor genes suggests their putative regulatory role in multiple biological processes. AB - TFs are important proteins regulating plant responses during environmental stresses. These insults typically induce changes in cellular redox tone driven in part by promoting the production of reactive nitrogen species (RNS). The main source of these RNS is nitric oxide (NO), which serves as a signalling molecule, eliciting defence and resistance responses. To understand how these signalling molecules regulate key biological processes, we performed a large scale S nitrosocysteine (CySNO)-mediated RNA-seq analysis. The DEGs were analysed to identify potential regulatory TFs. We found a total of 673 (up- and down regulated) TFs representing a broad range of TF families. GO-enrichment and MapMan analysis suggests that more than 98% of TFs were mapped to the Arabidopsis thaliana genome and classified into pathways like hormone signalling, protein degradation, development, biotic and abiotic stress, etc. A functional analysis of three randomly selected TFs, DDF1, RAP2.6, and AtMYB48 identified a regulatory role in plant growth and immunity. Loss-of-function mutations within DDF1 and RAP2.6 showed compromised basal defence and effector triggered immunity, suggesting their positive role in two major plant defence systems. Together, these results imply an important data representing NO-responsive TFs that will help in exploring the core mechanisms involved in biological processes in plants. PMID- 29335452 TI - Chaotic universe model. AB - In this study, we consider nonlinear interactions between components such as dark energy, dark matter, matter and radiation in the framework of the Friedman Robertson-Walker space-time and propose a simple interaction model based on the time evolution of the densities of these components. By using this model we show that these interactions can be given by Lotka-Volterra type equations. We numerically solve these coupling equations and show that interaction dynamics between dark energy-dark matter-matter or dark energy-dark matter-matter radiation has a strange attractor for 0 > w de >-1, w dm >= 0, w m >= 0 and w r >= 0 values. These strange attractors with the positive Lyapunov exponent clearly show that chaotic dynamics appears in the time evolution of the densities. These results provide that the time evolution of the universe is chaotic. The present model may have potential to solve some of the cosmological problems such as the singularity, cosmic coincidence, big crunch, big rip, horizon, oscillation, the emergence of the galaxies, matter distribution and large-scale organization of the universe. The model also connects between dynamics of the competing species in biological systems and dynamics of the time evolution of the universe and offers a new perspective and a new different scenario for the universe evolution. PMID- 29335450 TI - Copper sulfide nanoparticles as a photothermal switch for TRPV1 signaling to attenuate atherosclerosis. AB - Atherosclerosis is characterized by the accumulation of lipids within the arterial wall. Although activation of TRPV1 cation channels by capsaicin may reduce lipid storage and the formation of atherosclerotic lesions, a clinical use for capsaicin has been limited by its chronic toxicity. Here we show that coupling of copper sulfide (CuS) nanoparticles to antibodies targeting TRPV1 act as a photothermal switch for TRPV1 signaling in vascular smooth muscle cells (VSMCs) using near-infrared light. Upon irradiation, local increases of temperature open thermo-sensitive TRPV1 channels and cause Ca2+ influx. The increase in intracellular Ca2+ activates autophagy and impedes foam cell formation in VSMCs treated with oxidized low-density lipoprotein. In vivo, CuS TRPV1 allows photoacoustic imaging of the cardiac vasculature and reduces lipid storage and plaque formation in ApoE-/- mice fed a high-fat diet, with no obvious long-term toxicity. Together, this suggests CuS-TRPV1 may represent a therapeutic tool to locally and temporally attenuate atherosclerosis. PMID- 29335451 TI - A hot-spot mutation in CDC42 (p.Tyr64Cys) and novel phenotypes in the third patient with Takenouchi-Kosaki syndrome. AB - Takenouchi-Kosaki syndrome (TKS) is a congenital malformation syndrome characterized by severe developmental delay, macrothrombocytopenia, camptodactyly, sensorineural hearing loss, and dysmorphic facial features. Recently, a heterozygous de novo mutation (p.Tyr64Cys) in the CDC42 gene, which encodes a key small GTP-binding protein of the Rho-subfamily, was identified in two unrelated patients with TKS. We herein report a third patient with TKS who had the same heterozygous CDC42 mutation. The phenotype of the patient was very similar to those of the two previously reported patients with TKS; however, she also demonstrated novel clinical manifestations, such as congenital hypothyroidism and immunological disturbance. Thus, despite the heterozygous mutation of CDC42 (p.Tyr64Cys) likely being a hot-spot mutation for TKS, its phenotype may be variable. Further studies and the accumulation of patients with CDC42 mutations are needed to clarify the phenotype in patients with TKS and the pathophysiological roles of the CDC42 mutation. PMID- 29335453 TI - Engineering Yarrowia lipolytica to Simultaneously Produce Lipase and Single Cell Protein from Agro-industrial Wastes for Feed. AB - Lipases are scarcely exploited as feed enzymes in hydrolysis of lipids for increasing energy supply and improving nutrient use efficiency. In this work, we performed homologous overexpression, in vitro characterization and in vivo assessment of a lipase from the yeast Yarrowia lipolytica for feed purpose. Simultaneously, a large amount of yeast cell biomass was produced, for use as single cell protein, a potential protein-rich feed resource. Three kinds of low cost agro-industrial wastes were tested as substrates for simultaneous production of lipase and single cell protein (SCP) as feed additives: sugarcane molasses, waste cooking oil and crude glycerol from biodiesel production. Sugarcane molasses appeared as the most effective cheap medium, allowing production of 16420 U/ml of lipase and 151.2 g/L of single cell protein at 10 liter fermentation scale. In vitro characterization by mimicking a gastro-intestinal environment and determination of essential amino acids of the SCP, and in vivo oral feeding test on fish all revealed that lipase, SCP and their combination were excellent feed additives. Such simultaneous production of this lipase and SCP could address two main concerns of feed industry, poor utilization of lipid and shortage of protein resource at the same time. PMID- 29335455 TI - Publisher Correction: Trapping and manipulation of nanoparticles using multifocal optical vortex metalens. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29335454 TI - Relationship between spectrotemporal modulation detection and music perception in normal-hearing, hearing-impaired, and cochlear implant listeners. AB - The objective of this study was to examine the relationship between spectrotemporal modulation (STM) sensitivity and the ability to perceive music. Ten normal-nearing (NH) listeners, ten hearing aid (HA) users with moderate hearing loss, and ten cochlear Implant (CI) users participated in this study. Three different types of psychoacoustic tests including spectral modulation detection (SMD), temporal modulation detection (TMD), and STM were administered. Performances on these psychoacoustic tests were compared to music perception abilities. In addition, psychoacoustic mechanisms involved in the improvement of music perception through HA were evaluated. Music perception abilities in unaided and aided conditions were measured for HA users. After that, HA benefit for music perception was correlated with aided psychoacoustic performance. STM detection study showed that a combination of spectral and temporal modulation cues were more strongly correlated with music perception abilities than spectral or temporal modulation cues measured separately. No correlation was found between music perception performance and SMD threshold or TMD threshold in each group. Also, HA benefits for melody and timbre identification were significantly correlated with a combination of spectral and temporal envelope cues though HA. PMID- 29335456 TI - Incidence of solid tumors in polycythemia vera treated with phlebotomy with or without hydroxyurea: ECLAP follow-up data. PMID- 29335457 TI - An equation-of-state-meter of quantum chromodynamics transition from deep learning. AB - A primordial state of matter consisting of free quarks and gluons that existed in the early universe a few microseconds after the Big Bang is also expected to form in high-energy heavy-ion collisions. Determining the equation of state (EoS) of such a primordial matter is the ultimate goal of high-energy heavy-ion experiments. Here we use supervised learning with a deep convolutional neural network to identify the EoS employed in the relativistic hydrodynamic simulations of heavy ion collisions. High-level correlations of particle spectra in transverse momentum and azimuthal angle learned by the network act as an effective EoS-meter in deciphering the nature of the phase transition in quantum chromodynamics. Such EoS-meter is model-independent and insensitive to other simulation inputs including the initial conditions for hydrodynamic simulations. PMID- 29335458 TI - Publisher Correction: Microbial network of the carbonate precipitation process induced by microbial consortia and the potential application to crack healing in concrete. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29335459 TI - Publisher Correction: Discovery of targetable genetic alterations in advanced non small cell lung cancer using a next-generation sequencing-based circulating tumor DNA assay. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29335460 TI - God is watching: history in the age of near-infinite digital archives. PMID- 29335461 TI - Pixelated spatial gene expression analysis from tissue. AB - Here, we present a technique that performs on-chip picoliter real-time reverse transcriptase loop mediated isothermal amplification (RT-LAMP) reactions on a histological tissue section without any analyte purification while preserving the native spatial location of the nucleic acid molecules. We demonstrate this method by amplifying TOP2A messenger RNA (mRNA) in a prostate cancer xenograft with 100 um spatial resolution and by visualizing the variation in threshold time of amplification across the tissue. The on-chip reaction was validated by mRNA fluorescence in situ hybridization (mFISH) from cells in the tissue section. The entire process, from tissue loading on microchip to results from RT-LAMP can be carried out in less than 2 h. We anticipate that this technique, with its ease of use, fast turnaround, and quantitative molecular outputs, would become an invaluable tissue analysis tool for researchers and clinicians in the biomedical arena. PMID- 29335462 TI - Iron-related toxicity of single-walled carbon nanotubes and crocidolite fibres in human mesothelial cells investigated by Synchrotron XRF microscopy. AB - Carbon nanotubes (CNTs) are promising products in industry and medicine, but there are several human health concerns since their fibrous structure resembles asbestos. The presence of transition metals, mainly iron, in the fibres seems also implicated in the pathogenetic mechanisms. To unravel the role of iron at mesothelial level, we compared the chemical changes induced in MeT-5A cells by the exposure to asbestos (crocidolite) or CNTs at different content of iron impurities (raw-SWCNTs, purified- and highly purified-SWCNTs). We applied synchrotron-based X-Ray Fluorescence (XRF) microscopy and soft X-ray imaging (absorption and phase contrast images) to monitor chemical and morphological changes of the exposed cells. In parallel, we performed a ferritin assay. X-ray microscopy imaging and XRF well localize the crocidolite fibres interacting with cells, as well as the damage-related morphological changes. Differently, CNTs presence could be only partially evinced by low energy XRF through carbon distribution and sometimes iron co-localisation. Compared to controls, the cells treated with raw-SWCNTs and crocidolite fibres showed a severe alteration of iron distribution and content, with concomitant stimulation of ferritin production. Interestingly, highly purified nanotubes did not altered iron metabolism. The data provide new insights for possible CNTs effects at mesothelial/pleural level in humans. PMID- 29335463 TI - Sub-kb Hi-C in D. melanogaster reveals conserved characteristics of TADs between insect and mammalian cells. AB - Topologically associating domains (TADs) are fundamental elements of the eukaryotic genomic structure. However, recent studies suggest that the insulating complexes, CTCF/cohesin, present at TAD borders in mammals are absent from those in Drosophila melanogaster, raising the possibility that border elements are not conserved among metazoans. Using in situ Hi-C with sub-kb resolution, here we show that the D. melanogaster genome is almost completely partitioned into >4000 TADs, nearly sevenfold more than previously identified. The overwhelming majority of these TADs are demarcated by the insulator complexes, BEAF-32/CP190, or BEAF 32/Chromator, indicating that these proteins may play an analogous role in flies as that of CTCF/cohesin in mammals. Moreover, extended regions previously thought to be unstructured are shown to consist of small contiguous TADs, a property also observed in mammals upon re-examination. Altogether, our work demonstrates that fundamental features associated with the higher-order folding of the genome are conserved from insects to mammals. PMID- 29335464 TI - Evaluation of endothelial function by VOP and inflammatory biomarkers in patients with arterial hypertension. AB - Hypertension is associated with microcirculatory impairment. Our objectives were to evaluate endothelial function and inflammatory biomarkers in patients with resistant (RH) and mild to moderate (MMH) arterial hypertension in comparison to normotensives (control group-CG). Three groups, 25 patients each, have been investigated, by anamnesis, venous occlusion plethysmography (VOP) and serum determination of adhesion molecules (VCAM, ICAM), adiponectin, endothelin and C reactive protein (CRP). Patients not using statins and with or without blood pressure control were also analyzed. RH group showed smaller percentage increase of maximum forearm blood flow (FBF) (endothelial-dependent vasodilatation) than controls (p < 0.05), but no significant difference could be detected between MMH and CG groups on maximum FBF and minimum vascular resistance post-ischemia. RH and MMH groups showed higher resistance averages compared to controls (p < 0.05). Uncontrolled BP in hypertensive patients showed worse results for blood flow and resistance. Endothelial-independent vasodilatation was not affected. Endothelin levels were higher in RH and MMH groups (p < 0.05) not using statins. CRP was significantly higher only in RH compared to CG (p < 0.05). In conclusion patients with severe hypertension and lack of blood pressure control showed greater impairment of endothelial function with higher CRP and endothelin levels. PMID- 29335465 TI - The high concentration of progesterone is harmful for endometrial receptivity and decidualization. AB - Progesterone is required for the establishment and maintenance of mammalian pregnancy and widely used for conservative treatment of luteal phase deficiency in clinics. However, there are limited solid evidences available for the optimal timing and dose of progesterone therapy, especially for the possible adverse effects on implantation and decidualization when progesterone is administrated empirically. In our study, mouse models were used to examine effects of excess progesterone on embryo implantation and decidualization. Our data indicate that excess progesterone is not only harmful for mouse implantation, but also impairs mouse decidualization. In excess progesterone-treated mice, the impaired LIF/STAT3 pathway and dysregulated endoplasmic reticulum stress may lead to the inhibition of embryo implantation and decidualization. It is possible that the decrease in birth weight of excess progesterone-treated mice is due to a compromised embryo implantation and decidualization. Furthermore, excess progesterone compromises in vitro decidualization of human endometrial stromal cells. PMID- 29335466 TI - Deeply-sourced formate fuels sulfate reducers but not methanogens at Lost City hydrothermal field. AB - Hydrogen produced during water-rock serpentinization reactions can drive the synthesis of organic compounds both biotically and abiotically. We investigated abiotic carbon production and microbial metabolic pathways at the high energy but low diversity serpentinite-hosted Lost City hydrothermal field. Compound-specific 14C data demonstrates that formate is mantle-derived and abiotic in some locations and has an additional, seawater-derived component in others. Lipids produced by the dominant member of the archaeal community, the Lost City Methanosarcinales, largely lack 14C, but metagenomic evidence suggests they cannot use formate for methanogenesis. Instead, sulfate-reducing bacteria may be the primary consumers of formate in Lost City chimneys. Paradoxically, the archaeal phylotype that numerically dominates the chimney microbial communities appears ill suited to live in pure hydrothermal fluids without the co-occurrence of organisms that can liberate CO2. Considering the lack of dissolved inorganic carbon in such systems, the ability to utilize formate may be a key trait for survival in pristine serpentinite-hosted environments. PMID- 29335467 TI - An engineered CARS substrate with giant field enhancement in crisscross dimer nanostructure. AB - We theoretically investigate the optical properties of a nanostructure consisting of the two identical and symmetrically arranged crisscrosses. A plasmonic Fano resonance is induced by a strong interplay between bright mode and dark modes, where the bright mode is due to electric dipole resonance while dark modes originate from the magnetic dipole induced by LC resonances. In this article, we find that the electric field "hotspots" corresponding to three different wavelengths can be positioned at the same spatial position, and its spectral tunability is achieved by changing geometric parameters. The crisscrosses system can be designed as a plasmonic substrate for enhancing Coherent Anti-Stokes Raman Scattering (CARS) signal. This discovery provides a new method to achieve single molecule detection. At the same time, it also has many important applications for multi-photon imaging and other nonlinear optical processes, such as four-wave mixing and stimulated Raman scattering. PMID- 29335468 TI - AICDA drives epigenetic heterogeneity and accelerates germinal center-derived lymphomagenesis. AB - Epigenetic heterogeneity is emerging as a feature of tumors. In diffuse large B cell lymphoma (DLBCL), increased cytosine methylation heterogeneity is associated with poor clinical outcome, yet the underlying mechanisms remain unclear. Activation-induced cytidine deaminase (AICDA), an enzyme that mediates affinity maturation and facilitates DNA demethylation in germinal center (GC) B cells, is required for DLBCL pathogenesis and linked to inferior outcome. Here we show that AICDA overexpression causes more aggressive disease in BCL2-driven murine lymphomas. This phenotype is associated with increased cytosine methylation heterogeneity, but not with increased AICDA-mediated somatic mutation burden. Reciprocally, the cytosine methylation heterogeneity characteristic of normal GC B cells is lost upon AICDA depletion. These observations are relevant to human patients, since DLBCLs with high AICDA expression manifest increased methylation heterogeneity vs. AICDA-low DLBCLs. Our results identify AICDA as a driver of epigenetic heterogeneity in B-cell lymphomas with potential significance for other tumors with aberrant expression of cytidine deaminases. PMID- 29335469 TI - Structural basis for chitin acquisition by marine Vibrio species. AB - Chitin, an insoluble polymer of N-acetylglucosamine, is one of the most abundant biopolymers on Earth. By degrading chitin, chitinolytic bacteria such as Vibrio harveyi are critical for chitin recycling and maintenance of carbon and nitrogen cycles in the world's oceans. A decisive step in chitin degradation is the uptake of chito-oligosaccharides by an outer membrane protein channel named chitoporin (ChiP). Here, we report X-ray crystal structures of ChiP from V. harveyi in the presence and absence of chito-oligosaccharides. Structures without bound sugar reveal a trimeric assembly with an unprecedented closing of the transport pore by the N-terminus of a neighboring subunit. Substrate binding ejects the pore plug to open the transport channel. Together with molecular dynamics simulations, electrophysiology and in vitro transport assays our data provide an explanation for the exceptional affinity of ChiP for chito-oligosaccharides and point to an important role of the N-terminal gate in substrate transport. PMID- 29335470 TI - Stratospheric ozone loss over the Eurasian continent induced by the polar vortex shift. AB - The Montreal Protocol has succeeded in limiting major ozone-depleting substance emissions, and consequently stratospheric ozone concentrations are expected to recover this century. However, there is a large uncertainty in the rate of regional ozone recovery in the Northern Hemisphere. Here we identify a Eurasia North America dipole mode in the total column ozone over the Northern Hemisphere, showing negative and positive total column ozone anomaly centres over Eurasia and North America, respectively. The positive trend of this mode explains an enhanced total column ozone decline over the Eurasian continent in the past three decades, which is closely related to the polar vortex shift towards Eurasia. Multiple chemistry-climate-model simulations indicate that the positive Eurasia-North America dipole trend in late winter is likely to continue in the near future. Our findings suggest that the anticipated ozone recovery in late winter will be sensitive not only to the ozone-depleting substance decline but also to the polar vortex changes, and could be substantially delayed in some regions of the Northern Hemisphere extratropics. PMID- 29335471 TI - Raman enhancement on ultra-clean graphene quantum dots produced by quasi equilibrium plasma-enhanced chemical vapor deposition. AB - Graphene is regarded as a potential surface-enhanced Raman spectroscopy (SERS) substrate. However, the application of graphene quantum dots (GQDs) has had limited success due to material quality. Here, we develop a quasi-equilibrium plasma-enhanced chemical vapor deposition method to produce high-quality ultra clean GQDs with sizes down to 2 nm directly on SiO2/Si, which are used as SERS substrates. The enhancement factor, which depends on the GQD size, is higher than conventional graphene sheets with sensitivity down to 1 * 10-9 mol L-1 rhodamine. This is attributed to the high-quality GQDs with atomically clean surfaces and large number of edges, as well as the enhanced charge transfer between molecules and GQDs with appropriate diameters due to the existence of Van Hove singularities in the electronic density of states. This work demonstrates a sensitive SERS substrate, and is valuable for applications of GQDs in graphene based photonics and optoelectronics. PMID- 29335472 TI - Provided support, caregiver burden and well-being in partners of persons with spinal cord injury 5 years after discharge from first inpatient rehabilitation. AB - STUDY DESIGN: Cross-sectional study. OBJECTIVES: To describe type and regularity of support given by partners for individuals with paraplegia versus tetraplegia 5 years after discharge from first inpatient rehabilitation; to describe perceived caregiver burden, mental health and life satisfaction among partners; and to analyse determinants of perceived burden and the partner's mental health and life satisfaction. SETTING: The Netherlands. METHODS: Participants were partners of persons with spinal cord injury (SCI) 5 years after discharge from first inpatient rehabilitation (N = 67). Participants completed a self-report questionnaire. Provided support was assessed with an existing scale consisting of 25 activities for which partners could indicate how often they provide support to the patient. Caregiver burden was assessed with the Caregiver Strain Index. Mental health was measured with the Short-Form Health Survey 36 (mental health subscale), and life satisfaction was measured with the Life Satisfaction Questionnaire. RESULTS: Five years after inpatient rehabilitation, partners provided support with a large variety of activities. How often and in which activities partners provided support was associated with lesion level. About 43% of the partners experienced high levels of caregiver burden. Provided support was related to perceived burden (rS = 0.58) and life satisfaction (rS = -0.24), and burden was negatively related to mental health (rS = -0.47) and life satisfaction (rS = -0.67). CONCLUSIONS: High levels of perceived burden among partners and the associations between higher burden with lower well-being show the importance to prevent caregiver overload in partners of individuals with SCI. Monitoring burden during regular rehabilitation visits may help to early detect burden. PMID- 29335473 TI - Mental health and life satisfaction of individuals with spinal cord injury and their partners 5 years after discharge from first inpatient rehabilitation. AB - STUDY DESIGN: Cross-sectional study. OBJECTIVES: To describe and compare mental health and life satisfaction between individuals with spinal cord injury (SCI) and their partners 5 years after discharge from first inpatient rehabilitation; and to examine if injury severity moderates the association between individuals' with SCI and their partners' mental health and life satisfaction. SETTING: Dutch community. METHODS: Sixty-five individuals with SCI and their partners completed a self-report questionnaire. Main outcome measures were the mental health subscale of the Short-Form Health Survey and the Life Satisfaction Questionnaire. RESULTS: Levels of mental health and life satisfaction of individuals with SCI and partners were similar, with median scores of 76 and 4.8 versus 76 and 4.6, respectively. Moderate to strong correlations between individuals with SCI and their partners were found for the mental health (rS = 0.35) and life satisfaction scores (rS = 0.51). These associations were generally stronger in the subgroup of individuals with less severe SCI. Associations between scores on separate life domains ranged from negligible (0.05) to moderate (0.53). Individuals with SCI and their partners were least satisfied with their 'sexual life'. Compared with their partners, individuals with SCI were significantly more satisfied in the domains 'leisure situation', 'partnership relation' and 'family life', and less satisfied in 'self-care ability'. CONCLUSIONS: This study showed similarities but also differences in mental health and life satisfaction between individuals with SCI and their partners. In clinical practice, attention on mental health and life satisfaction should, therefore, focus on different domains for individuals with SCI and partners. PMID- 29335474 TI - Low vitamin D levels are independent predictors of 1-year worsening in physical function in people with chronic spinal cord injury: a longitudinal study. AB - STUDY DESIGN: Longitudinal cohort study. OBJECTIVE: To explore the longitudinal association of baseline vitamin D levels with 1-year change in physical function outcomes in people with chronic spinal cord injury (SCI). SETTING: Rehabilitation institute. METHODS: Sixty-seven patients (44 men and 23 women) with chronic SCI admitted to a rehabilitation program were included. Functional independence in daily living activities (as evaluated by the Spinal Cord Independence Measure version III, SCIM III) and leisure time physical activity (LTPA) were assessed as measures of physical function at the admission and re-assessed 1-year later. Comorbidity was scored by Charlson comorbidity index (CCI). RESULTS: A 1-year worsening in SCIM and LTPA were registered in 44 and 40 patients (66% and 60% of the study population), respectively. They exhibited significantly lower baseline 25(OH)D levels, higher CCI, and shorter distance from the injury. At the multiple linear regression analyses, lower baseline 25(OH)D levels exhibited a significant independent association with higher percentages of 1-year worsening in both SCIM and LTPA. At ROC analysis, baseline 25(OH)D levels <18.6 and <18.2 ng/mL discriminated individuals with 1-year worsening in SCIM and LTPA, respectively. According to these cut-off points, at the multiple logistic regression analysis, patients with low baseline 25(OH)D levels exhibited an OR of worsening in SCIM and LTPA engagement 2.8- and 2.6-fold higher, after adjustment for CCI, distance from injury, and post-follow-up 25(OH)D levels. CONCLUSIONS: In people with chronic SCI, a low 25(OH)D level may represent an independent predictor of worsening in physical function outcomes over time. PMID- 29335475 TI - Discontinuous ventilator weaning of patients with acute SCI. AB - STUDY DESIGN: Retrospective, single centre cohort study. OBJECTIVES: To determine factors associated with ventilator weaning success and failure in patients with acute spinal cord injury (SCI); determine length of time and attempts required to wean from the ventilator successfully and determine the incidence of pneumonia. SETTING: BG Klinikum Hamburg, Level 1 trauma centre, SCI Department, Germany. METHODS: From 2010 until 2017, 165 consecutive patients with cervical SCI, initially dependent on a ventilator, were included and weaned discontinuously via tracheal cannula. Data related to anthropometric details, neurological injury, respiratory outcomes, and weaning parameters were prospectively recorded in a database and retrospectively analysed. RESULTS: Seventy-nine percent of all patients were successfully weaned from ventilation. Average duration of the complete weaning process was 37 days. Ninety-one percent of the successfully weaned patients completed this on first attempt. Age (>56 years), level of injury (C4 and/or above), vital capacity (<1500 ml), obesity (>25 kg/m2), and chronic obstructive pulmonary disease (COPD) significantly decreased the chance of successful weaning. These factors also correlated with a higher number of weaning attempts. High level of injury, older age, and reduced vital capacity also increased the duration of the weaning process. Patients with low vital capacity and concurrent therapy with Baclofen and Dantrolene showed higher rates of pneumonia. CONCLUSIONS: We conclude that mentioned factors are associated with weaning outcome and useful for clinical recommendations and patient counselling. These data further support the complexity of ventilator weaning in the SCI population due to associated complications, therefore we recommend conducting weaning of patients with SCI on intensive or intermediate care units (ICU/IMCU) in specialised centres. PMID- 29335476 TI - Reliability and validity of the Persian version of the spinal cord injury lifestyle scale and the health behavior questionnaire in persons with spinal cord injury. AB - STUDY DESIGN: Cross-sectional psychometric study. OBJECTIVE: To evaluate the reliability and validity of a spinal cord injury lifestyle scale (SCILS) and Health Behavior Questionnaire (HBQ) in the Persian language for persons with spinal cord injury (SCI). SETTING: Participants were selected among those referred to health centers and the Brain and Spinal Cord Injury Research Center. METHOD: In accordance with standard procedure for translation, two questionnaires, the SCILS and HBQ, were translated using a forward and backward translation approach by professional translators. Face validity of the questionnaires was assessed by ten persons with SCI and content validity was agreed upon by 12 professors from health care teaching universities. To test the final versions of both questionnaires, 97 persons with SCI were included using a consecutive sampling method. Other questionnaires were used to assess concurrent validity (secondary impairment checklist, as well as SCILS and HBQ) and convergent validity (impact of event scale revised, brief symptom inventory, beck depression inventory, and functional independence measure). RESULTS: Internal consistency of SCILS and HBQ, assessed by Cronbach's alpha, was 0.75 for SCILS and 0.85 for HBQ. Test-retest reliability intraclass correlations were 0.86 and 0.92 for SCILS and HBQ, respectively. The number of current secondary impairments had a significant and negative correlation with SCILS (r = -0.22, P < 0.001), but it was not correlated with HBQ. SCILS had a significant and strong correlation with HBQ (r = 0.65, P < 0.001). CONCLUSION: SCILS and HBQ can be used for measuring the health behavior of persons with SCI in Iran. PMID- 29335478 TI - Publisher Correction: Marked bias towards spontaneous synaptic inhibition distinguishes non-adapting from adapting layer 5 pyramidal neurons in the barrel cortex. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29335477 TI - Transcriptomic signatures of cellular and humoral immune responses in older adults after seasonal influenza vaccination identified by data-driven clustering. AB - PBMC transcriptomes after influenza vaccination contain valuable information about factors affecting vaccine responses. However, distilling meaningful knowledge out of these complex datasets is often difficult and requires advanced data mining algorithms. We investigated the use of the data-driven Weighted Gene Correlation Network Analysis (WGCNA) gene clustering method to identify vaccine response-related genes in PBMC transcriptomic datasets collected from 138 healthy older adults (ages 50-74) before and after 2010-2011 seasonal trivalent influenza vaccination. WGCNA separated the 14,197 gene dataset into 15 gene clusters based on observed gene expression patterns across subjects. Eight clusters were strongly enriched for genes involved in specific immune cell types and processes, including B cells, T cells, monocytes, platelets, NK cells, cytotoxic T cells, and antiviral signaling. Examination of gene cluster membership identified signatures of cellular and humoral responses to seasonal influenza vaccination, as well as pre-existing cellular immunity. The results of this study illustrate the utility of this publically available analysis methodology and highlight genes previously associated with influenza vaccine responses (e.g., CAMK4, CD19), genes with functions not previously identified in vaccine responses (e.g., SPON2, MATK, CST7), and previously uncharacterized genes (e.g. CORO1C, C8orf83) likely related to influenza vaccine-induced immunity due to their expression patterns. PMID- 29335479 TI - LPS-induced Vitamin D Receptor Decrease in Oral Keratinocytes Is Associated With Oral Lichen Planus. AB - The suppressive function of vitamin D on oral lichen planus (OLP) have been documented previously. Vitamin D receptor (VDR) expression is down-regulated in OLP, but the molecular mechanism of its decrease and the related anti inflammatory contributor of epithelial VDR signaling is unclear. Herein, we demonstrated that lipopolysaccharide (LPS) remarkedly down-regulated VDR expression of keratinocytes, and the reduced regulation was dependent on tumor necrosis factor alpha (TNFalpha)-miR-346 pathway. In human specimen studies, VDR levels of oral mucosal epithelia from OLP patients decreased substantially accompanied with robust TNFalpha and miR-346 induction, compared to the normal tissues. In addition, vitamin D/VDR signaling inhibited LPS-induced p53 upregulated modulator of apoptosis (PUMA) induction in keratinocytes via impeding nuclear factor-kappaB (NF-kappaB) activation, resulting in keratinocytes apoptosis reduction. Importantly, PUMA activity was up-regulated strongly in diseased epithelium, reversely correlated with VDR expression. Totally, our data indicate that LPS is responsible for VDR downregulation in oral keratinocytes, which is associated with OLP development. PMID- 29335482 TI - Engineered nonlinear materials using gold nanoantenna array. AB - Gold dipole nanoantennas embedded in an organic molecular film provide strong local electromagnetic fields to enhance both the nonlinear refractive index (n2) and two-photon absorption (2PA) of the molecules. An enhancement of 53* for 2PA and 140* for nonlinear refraction is observed for BDPAS (4,4' bis(diphenylamino)stilbene) at 600 nm with only 3.7% of gold volume fraction. The complex value of the third-order susceptibility enhancement results in a sign change of n2 for the effective composite material relative to the pure BDPAS film. This complex nature of the enhancement and the tunability of the nanoantenna resonance allow for engineering the effective nonlinear response of the composite film. PMID- 29335481 TI - Bioimpedimetric analysis in conjunction with growth dynamics to differentiate aggressiveness of cancer cells. AB - Determination of cancer aggressiveness is mainly assessed in tissues by looking at the grade of cancer. There is a lack of specific method to determine aggressiveness of cancer cells in vitro. In our present work, we have proposed a bio-impedance based non-invasive method to differentiate aggressive property of two breast cancer cell lines. Real-time impedance analysis of MCF-7 (less aggressive) and MDA-MB-231 cells (more aggressive) demonstrated unique growth pattern. Detailed slope-analysis of impedance curves at different growth phases showed that MDA-MB-231 had higher proliferation rate and intrinsic resistance to cell death, when allowed to grow in nutrient and space limiting conditions. This intrinsic nature of death resistance of MDA-MB-231 was due to modulation and elongation of filopodia, which was also observed during scanning electron microscopy. Results were also similar when validated by cell cycle analysis. Additionally, wavelet based analysis was used to demonstrate that MCF-7 had lesser micromotion based cellular activity, when compared with MDA-MB-231. Combined together, we hypothesize that analysis of growth rate, death resistance and cellular energy, through bioimpedance based analysis can be used to determine and compare aggressiveness of multiple cancer cell lines. This further opens avenues for extrapolation of present work to human tumor tissue samples. PMID- 29335480 TI - Novel analgesic effects of melanin-concentrating hormone on persistent neuropathic and inflammatory pain in mice. AB - The melanin-concentrating hormone (MCH) is a peptidergic neuromodulator synthesized by neurons in the lateral hypothalamus and zona incerta. MCHergic neurons project throughout the central nervous system, indicating the involvements of many physiological functions, but the role in pain has yet to be determined. In this study, we found that pMCH-/- mice showed lower baseline pain thresholds to mechanical and thermal stimuli than did pMCH+/+ mice, and the time to reach the maximum hyperalgesic response was also significantly earlier in both inflammatory and neuropathic pain. To examine its pharmacological properties, MCH was administered intranasally into mice, and results indicated that MCH treatment significantly increased mechanical and thermal pain thresholds in both pain models. Antagonist challenges with naltrexone (opioid receptor antagonist) and AM251 (cannabinoid 1 receptor antagonist) reversed the analgesic effects of MCH in both pain models, suggesting the involvement of opioid and cannabinoid systems. MCH treatment also increased the expression and activation of CB1R in the medial prefrontal cortex and dorsolateral- and ventrolateral periaqueductal grey. The MCH1R antagonist abolished the effects induced by MCH. This is the first study to suggest novel analgesic actions of MCH, which holds great promise for the application of MCH in the therapy of pain-related diseases. PMID- 29335483 TI - Pilot study to assess visualization and therapy of inflammatory mechanisms after vessel reopening in a mouse stroke model. AB - After reperfusion therapy in stroke patients secondary inflammatory processes may increase cerebral damage. In this pilot study, effects of anti-inflammatory therapy were assessed in a middle cerebral artery occlusion (MCAO) mouse model after reperfusion. 1 hour after MCAO, the artery was reopened and tacrolimus or NaCl were administered intra-arterially. Perfusion-weighted (PWI) and diffusion weighted images (DWI) were obtained by MRI during MCAO. DWI, T2- and T1-weighted images with and without Bis-5HT-DTPA administration were obtained 24 hours after MCAO. Neutrophils, Myeloperoxidase-positive-(MPO+)-cells and microglia, including M1 and M2 phenotypes, were assessed immunohistochemically. Treatment with tacrolimus led to significantly smaller apparent diffusion coefficient (ADC) lesion volume within 24 hours (median -55.6mm3, range -81.3 to -3.6, vs. median 8.0 mm3, range 1.2 to 41.0; P = 0.008) and significantly lower enhancement of Bis 5-HT-DTPA (median signal intensity (SI) ratiocortex, median 92.0%, range 82.8% to 97.1%, vs. median 103.1%, range 98.7% to 104.6%; P = 0.008) compared to the NaCl group. Immunohistochemical analysis showed no significant differences between both groups. Intra-arterially administered anti-inflammatory agents after mechanical thrombectomy may improve treatment efficiency in stroke by reducing infarct volume size and MPO activity. PMID- 29335484 TI - Microbial Competition of Rhodotorula mucilaginosa UANL-001L and E. coli increase biosynthesis of Non-Toxic Exopolysaccharide with Applications as a Wide-Spectrum Antimicrobial. AB - Bacterial species are able to colonize and establish communities in biotic and abiotic surfaces. Moreover, within the past five decades, incidence of bacterial strains resistant to currently used antibiotics has increased dramatically. This has led to diverse health issues and economical losses for different industries. Therefore, there is a latent need to develop new and more efficient antimicrobials. This work reports an increased production of an exopolysaccharide in a native yeast strain isolated from the Mexican Northeast, Rhodotorula mucilaginosa UANL-001L, when co-cultured with E. coli. The exopolysaccharide produced is chemically and physically characterized and its applications as an antimicrobial and antibiofilm are explored. The exopolysaccharide is capable of inhibiting planktonic growth and biofilm formation in Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus. Additionally, the exopolysaccharide studied here does not exhibit cytotoxic effects when assessed both, in vitro against an H9c2 mammalian cell line, and in vivo in a murine toxicity model. Taken together, the properties of this exopolysaccharide indicate that it has potential applications to inhibit bacterial colonization in medical and industrial settlings. PMID- 29335485 TI - Electron beam melting in the fabrication of three-dimensional mesh titanium mandibular prosthesis scaffold. AB - The study was designed to fulfill effective work-flow to fabricate three dimensional mesh titanium scaffold for mandibular reconstruction. The 3D titanium mesh scaffold was designed based on a volunteer with whole mandible defect. (1) acquisition of the CT data; (2) design with computer aided design (CAD) and finite element analysis (FEA). The pore size and intervals with the best mechanic strength was also calculated using FEA. (3) fabrication of the scaffold using electron beam melting (EBM); (4) implantation surgery. The case recovered well, without loosening and rejection. Additionally, 12 mandibular defect model beagles were used to verify the results. The model was established via tooth extraction and mandibular resection surgeries, and the scaffold was designed individually based on CT data obtained at 2 weeks after extraction operation. Then scaffolds were fabricated using 3D EBM, and the implantation surgery was performed at 2 months after extraction operation. All the animals healed well after implantation, and the grafted mandibular recovered well with time. The relevant parameters of the grafted mandibular were nearly to the native mandibular at postoperative 12 months. It is feasible to fabricate mesh titanium scaffold for repairing mandibular defects individually using reverse engineering, CAD and EBM techniques. PMID- 29335486 TI - High-resolution TADs reveal DNA sequences underlying genome organization in flies. AB - Despite an abundance of new studies about topologically associating domains (TADs), the role of genetic information in TAD formation is still not fully understood. Here we use our software, HiCExplorer (hicexplorer.readthedocs.io) to annotate >2800 high-resolution (570 bp) TAD boundaries in Drosophila melanogaster. We identify eight DNA motifs enriched at boundaries, including a motif bound by the M1BP protein, and two new boundary motifs. In contrast to mammals, the CTCF motif is only enriched on a small fraction of boundaries flanking inactive chromatin while most active boundaries contain the motifs bound by the M1BP or Beaf-32 proteins. We demonstrate that boundaries can be accurately predicted using only the motif sequences at open chromatin sites. We propose that DNA sequence guides the genome architecture by allocation of boundary proteins in the genome. Finally, we present an interactive online database to access and explore the spatial organization of fly, mouse and human genomes, available at http://chorogenome.ie-freiburg.mpg.de . PMID- 29335487 TI - Increased Expression of GLP-1R in Proliferating Islets of Men1 Mice is Detectable by [68Ga]Ga-DO3A-VS-Cys40-Exendin-4 /PET. AB - Multiple endocrine neoplasia type 1 (MEN1) is an endocrine tumor syndrome caused by heterozygous mutations in the MEN1 tumor suppressor gene. The MEN1 pancreas of the adolescent gene carrier frequently contain diffusely spread pre-neoplasias and microadenomas, progressing to macroscopic and potentially malignant pancreatic neuroendocrine tumors (P-NET), which represents the major death cause in MEN1. The unveiling of the molecular mechanism of P-NET which is not currently understood fully to allow the optimization of diagnostics and treatment. Glucagon like peptide 1 (GLP-1) pathway is essential in islet regeneration, i.e. inhibition of beta-cell apoptosis and enhancement of beta-cell proliferation, yet involvement of GLP-1 in MEN1 related P-NET has not yet been demonstrated. The objective of this work was to investigate if normal sized islets of Men1 heterozygous mice have increased Glucagon-like peptide-1 receptor (GLP-1R) expression compared to wild type islets, and if this increase is detectable in vivo with positron emission tomography (PET) using [68Ga]Ga-DO3A-VS-Cys40-Exendin 4 (68Ga-Exendin-4). 68Ga-Exendin-4 showed potential for early lesion detection in MEN1 pancreas due to increased GLP1R expression. PMID- 29335488 TI - Distinct ERP profiles for auditory processing in infants at-risk for autism and language impairment. AB - Early identification of autism spectrum disorder (ASD) is crucial for the formulation of effective intervention programs. Language deficits may be a hallmark feature of ASD and language delay observed in ASD shows striking similarities to that observed in children with language impairment (LI). Auditory processing deficits are seen in both LI and ASD, however, they have not previously been compared directly using Event-Related Potentials (ERPs) in the two at-risk populations. This study aims to characterize infants at-risk for ASD (HR-ASD) at the electrophysiological level and to compare them with infants at risk for LI (HR-LI) and controls, to find specific markers with predictive value. At 12-month-old, auditory processing in HR-ASD, HR-LI and controls was characterized via ERP oddball paradigm. All infants were then evaluated at 20 months, to investigate the associations between auditory processing and language/ASD-related outcomes. In both HR-ASD and HR-LI, mismatch response latency was delayed compared to controls, whereas only HR-ASD showed overall larger P3 amplitude compared to controls. Interestingly, these ERP measures correlated with later expressive vocabulary and M-CHAT critical items in the whole sample. These results may support the use of objective measurement of auditory processing to delineate pathophysiological mechanisms in ASD, as compared to LI. PMID- 29335490 TI - Study on regeneration of waste powder activated carbon through pyrolysis and its adsorption capacity of phosphorus. AB - The regeneration of WPAC through pyrolysis and its adsorption capacity of phosphorus were studied. The optimum conditions for WPAC regeneration were 650 degrees C and 2 h which resulted in a recovery of BET surface and total pore volume with a value of 1161.4 m2/g and 1.2176 m3/g. WPAC had a maximum PO43--P adsorption capacity of 9.65 mg/g which was 48.93% of PAC, while RWPAC had a maximum PO43--P adsorption capacity of 15.31 mg/g which was 77.64% of PAC. The kinetic analysis revealed that Langmuir model could well describe the adsorption process of PAC, WPAC and RWPAC on PO43--P and the PO43--P adsorption followed the pseudo-second-order model. PMID- 29335489 TI - Direct quantum process tomography via measuring sequential weak values of incompatible observables. AB - The weak value concept has enabled fundamental studies of quantum measurement and, recently, found potential applications in quantum and classical metrology. However, most weak value experiments reported to date do not require quantum mechanical descriptions, as they only exploit the classical wave nature of the physical systems. In this work, we demonstrate measurement of the sequential weak value of two incompatible observables by making use of two-photon quantum interference so that the results can only be explained quantum physically. We then demonstrate that the sequential weak value measurement can be used to perform direct quantum process tomography of a qubit channel. Our work not only demonstrates the quantum nature of weak values but also presents potential new applications of weak values in analyzing quantum channels and operations. PMID- 29335491 TI - Validation and optimization of the Systemic Inflammation-Based modified Glasgow Prognostic Score in predicting postoperative outcome of inflammatory bowel disease: preliminary data. AB - Systemic Inflammation-Based modified Glasgow Prognostic Score (mGPS) was developed as an objective tool to grade state of inflammation. However, the association between mGPS and postoperative complications for inflammatory bowel disease (IBD) patients was still unknown. In our study, 270 IBD patients [Crohn's disease (CD), n = 186; Ulcerative colitis (UC), n = 84] from January 2013 and January 2016 who underwent elective bowel resection were retrospectively analyzed, and, the levels of preoperative C-reactive protein (CRP) and albumin were included as parameters of mGPS. The incidence of overall postoperative complications was 44.81% (121/270), including 46.77% (87/186) of CD and 40.48% (34/84) of UC. According to multivariate analysis, mGPS (CD: OR = 3.47, p = 0.003; UC: OR = 3.28, p = 0.019) was independently associated with an increased risk of postoperative complications. Patients with a higher mGPS also suffered longer postoperative stay and increased SSIs (both p < 0.05). Combining mGPS with neutrophil ratio improved its prognostic value with a better area under the curve (AUC), using receiver operating characteristic (ROC) method. Then we confirmed that mGPS was associated with postoperative complications in IBD patients undergoing elective bowel resection and the addition of neutrophil ratio enhanced its prognostic value. PMID- 29335492 TI - Assessing the effectiveness of NICE criteria for stratifying breast cancer risk in a UK cohort. AB - Breast cancer risk is a common indication for referral to clinical genetics services. UK National Institute of Health and Care Excellence (NICE) guidelines use family history (FH) to stratify by 10-year risk of breast cancer from age 40. Patients are stratified into population risk (PR, 10-year risk <3%), moderate (MR, 3-8%) and high risk (HR, >8%). Women at increased risk are offered screening at or prior to age 40. To assess the clinical effectiveness of current risk stratification, FH data were obtained for all unaffected women with a FH of breast cancer aged <50, referred to cancer genetics from 2000-2010. Patients were risk stratified by NICE criteria, identifying patients who subsequently developed breast cancer. A total of 1409 women had 15,414 patient years of follow-up. Thirty invasive breast cancers developed, 13 in MR and 13 in HR women. Kaplan Meier analysis demonstrated no significant difference in the rate of breast cancer development between PR and MR women from ages 40 to 49 (Log rank p = 0.431). There was a significant difference between ages 40 and 49 years between PR and HR women (p = 0.036), but not on exclusion of BRCA mutation carriers (p = 0.136). NICE absolute 10-year risk thresholds between ages 40 and 49 were not met in any risk group, when risk was estimated using the guidelines (PR = 0.82%, MR = 1.68%, HR = 3.56%). Our data suggest that improved criteria are required for risk assessment prior to age 50 and screening resources may be best focussed on those with highly penetrant mutations in cancer risk genes. PMID- 29335493 TI - Biophysical feedbacks mediate carbonate chemistry in coastal ecosystems across spatiotemporal gradients. AB - Ocean acidification (OA) projections are primarily based on open ocean environments, despite the ecological importance of coastal systems in which carbonate dynamics are fundamentally different. Using temperate tide pools as a natural laboratory, we quantified the relative contribution of community composition, ecosystem metabolism, and physical attributes to spatiotemporal variability in carbonate chemistry. We found that biological processes were the primary drivers of local pH conditions. Specifically, non-encrusting producer dominated systems had the highest and most variable pH environments and the highest production rates, patterns that were consistent across sites spanning 11 degrees of latitude and encompassing multiple gradients of natural variability. Furthermore, we demonstrated a biophysical feedback loop in which net community production increased pH, leading to higher net ecosystem calcification. Extreme spatiotemporal variability in pH is, thus, both impacting and driven by biological processes, indicating that shifts in community composition and ecosystem metabolism are poised to locally buffer or intensify the effects of OA. PMID- 29335494 TI - Magnetic Chern Insulators in a monolayer of Transition Metal Trichalcogenides. AB - A monolayer of transition metal trichalcogenides has received a lot of attention as potential two dimensional magnetic materials. The system has a honeycomb structure of transition metal ions, where both spin-orbit coupling and electron correlation effect play an important role. Here, motivated by these transition metal series with effective doping or mixed valence case, we propose the possible realization of magnetic Chern insulators at quarter filled honeycomb lattice. We show that the interplay of intrinsic spin-orbit coupling and electron correlation opens a wide region of ferromagnetic Chern insulating phases in between metals and normal insulators. Within the mean field approximation, we present the phase diagram of a quarter filled Kane-Mele Hubbard model and also discuss the effects of Rashba spin-orbit coupling and nearest neighbor interactions on it. PMID- 29335497 TI - Interference induced enhancement of magneto-optical Kerr effect in ultrathin magnetic films. AB - We have studied the magneto-optical spectra of ultrathin magnetic films deposited on Si substrates coated with an oxide layer (SiOx). We find that the Kerr rotation angle and the ellipticity of ~1 nm thick CoFeB thin films, almost transparent to visible light, show a strong dependence on the thickness of the SiOx layer. The Kerr signal from the 1 nm CoFeB thin film can be larger than that of ~100 nm thick CoFeB films for a given SiOx thickness and light wavelength. The enhancement of the Kerr signal occurs when optical interference takes place within the SiOx layer. Interestingly, under such resonance condition, the measured Kerr signal is in some cases larger than the estimation despite the good agreement of the measured and calculated reflection amplitude. We infer the discrepancy originates from interface states that are distinct from the bulk characteristics. These results show that optical interference effect can be utilized to study the magneto-optical properties of ultrathin films. PMID- 29335496 TI - Localization and function of neurosecretory protein GM, a novel small secretory protein, in the chicken hypothalamus. AB - Recently, we discovered a novel cDNA encoding the precursor of a small secretory protein, neurosecretory protein GL (NPGL), in the hypothalamic infundibulum of chickens. NPGL plays an important role in the regulation of growth and feeding. A database search indicated that the NPGL gene has a paralogous gene: neurosecretory protein GM (NPGM), also in chickens. We identified cDNA encoding the NPGM precursor in chickens. Morphological analysis showed that NPGM containing cells are specifically localized in the medial mammillary nucleus (MM) and infundibular nucleus (IN) in the hypothalamus. In addition, we found that NPGM and NPGL are co-localized, especially in the MM. The expression levels of NPGM mRNA gradually decreased during post-hatch development, in contrast to those of NPGL mRNA. Moreover, we investigated the relationship between NPGM and other known factors. NPGM was found to be produced in histaminergic neurons in the MM. NPGM and histidine decarboxylase, a histamine-producing enzyme, displayed similar expression patterns during post-hatch development. Acute intracerebroventricular injection of NPGM decreased food intake, similar to the effect of histamine. To our knowledge, this is the first report of the localization and function of NPGM in the brain of vertebrates. These results will further advance the understanding mechanisms underlying energy homeostasis. PMID- 29335495 TI - Dysfunction of CD19+CD24hiCD27+ B regulatory cells in patients with bullous pemphigoid. AB - Bullous pemphigoid (BP) is an autoimmune blistering skin disease characterized by the production of autoantibodies against the hemidesmosomal protein BP180. B regulatory cells (Bregs) are crucial in maintaining self-tolerance and suppressing autoantibody production. However, it is still unclear whether the dysfunctions of Bregs contributes to the autoantibody production in BP patients. In this study, we found that CD19+CD24hiCD27+ Bregs and IL-10+CD19+ Bregs were significantly increased in the peripheral blood samples of BP patients compared with that in healthy controls. Moreover, compared to Bregs from healthy individuals, we found that Bregs from BP patients fails to suppress the production of specific anti-BP180 autoantibody when co-cultured with patient derived PBMCs. Additionally, Bregs from BP patients were defective in suppressing the CD4+ T cell proliferation and the cytokines expression (including IFN-gamma, TNF-alpha and IL-4). Notably, we found that patient-derived Bregs produced high level of TNF-alpha and the TNF inhibitor etanercept could inhibit the autoantibody production in the culture system in vitro. Our results indicate that Bregs from BP patient appear phenotypically pro-inflammatory by their cytokine profile and are defective in immunosuppressive function, which suggest that Bregs play a pro-inflammatory role rather than a regulatory role in the pathogenesis of BP. PMID- 29335498 TI - Stretchable Electrospun PVDF-HFP/Co-ZnO Nanofibers as Piezoelectric Nanogenerators. AB - Herein, we investigate the morphology, structure and piezoelectric performances of neat polyvinylidene fluoride hexafluoropropylene (PVDF-HFP) and PVDF-HFP/Co ZnO nanofibers, fabricated by electrospinning. An increase in the amount of crystalline beta-phase of PVDF-HFP has been observed with the increase in Co doped ZnO nanofiller concentration in the PVDF-HFP matrix. The dielectric constants of the neat PVDF-HFP and PVDF-HFP/2 wt.% Co-ZnO nanofibers are derived as 8 and 38 respectively. The flexible nanogenerator manipulated from the polymer nanocomposite (PVDF-HFP/Co-ZnO) exhibits an output voltage as high as 2.8 V compared with the neat PVDF-HFP sample (~120 mV). These results indicate that the investigated nanocomposite is appropriate for fabricating various flexible and wearable self-powered electrical devices and systems. PMID- 29335500 TI - Evidence of a cubic iron sub-lattice in t-CuFe2O4 demonstrated by X-ray Absorption Fine Structure. AB - Copper ferrite, belonging to the wide and technologically relevant class of spinel ferrites, was grown in the form of t-CuFe2O4 nanocrystals within a porous matrix of silica in the form of either an aerogel or a xerogel, and compared to a bulk sample. Extended X-ray absorption fine structure (EXAFS) spectroscopy revealed the presence of two different sub-lattices within the crystal structure of t-CuFe2O4, one tetragonal and one cubic, defined by the Cu2+ and Fe3+ ions respectively. Our investigation provides evidence that the Jahn-Teller distortion, which occurs on the Cu2+ ions located in octahedral sites, does not affect the coordination geometry of the Fe3+ ions, regardless of their location in octahedral or tetrahedral sites. PMID- 29335499 TI - Structure of a MacAB-like efflux pump from Streptococcus pneumoniae. AB - The spr0693-spr0694-spr0695 operon of Streptococcus pneumoniae encodes a putative ATP-binding cassette (ABC)-type efflux pump involved in the resistance of antibiotics and antimicrobial peptides. Here we report the crystal structures of Spr0694-0695 at 3.3 A and Spr0693 at 3.0 A resolution, revealing a MacAB-like efflux pump. The dimeric Spr0694-0695 adopts a non-canonical fold of ABC transporter, the transmembrane domain of which consists of eight tightly packed transmembrane helices with an insertion of extracellular domain between the first and second helices, whereas Spr0693 forms a nanotube channel docked onto the ABC transporter. Structural analyses combined with ATPase activity and antimicrobial susceptibility assays, enable us to propose a putative substrate-entrance tunnel with a lateral access controlled by a guard helix. Altogether, our findings provide structural insights and putative transport mechanism of a MacAB-like efflux pump in Gram-positive bacteria. PMID- 29335501 TI - Dual functional dinuclear platinum complex with selective reactivity towards c myc G-quadruplex. AB - G-quadruplexes (GQ) folded by the oncogenic G-rich sequences are the promising targets for developing anticancer therapeutic molecules. However, the current drug development mainly focused on non-covalent dynamic binders to stabilize GQ structures, while the covalent targeting from inorganic complexes via chelating principles, as a potent therapeutic strategy was surprisingly lack of exploration. Herein, a series of dinuclear platinum complexes, [(Pt(Dip)Cl)2(MU diamine)](NO3)2 (Dip: 4,7-diphenyl-1,10-phenanthroline), were designed to contain two dual-functional Pt cores connected by an alkyl linkage. Pt3 with nonanediamine linkage optimized the specific binding towards c-myc G-quadruplex via dual functional clamp on GQ as 1) non-covalently pi-stacking of aromatic ligands, and 2) two Pt(II) cores covalently chelated to guanines at both 3'- and 5'-ends. PMID- 29335502 TI - The space charge limited current and huge linear magnetoresistance in silicon. AB - Huge magnetoresistance in space charge regime attracts broad interest on non equilibrium carrier transport under high electric field. However, the accurate fitting for the current-voltage curves from Ohmic to space charge regime under magnetic fields has not been achieved quantitatively. We conjecture that the localized intensive charge dynamic should be taken into consideration. Here, by introducing a field-dependent dielectric constant, for the first time, we successfully simulate the current-voltage curves of covalent crystal silicon wafers under different magnetic fields (0-1 Tesla). The simulation reveals that the optical phonon, instead of the acoustic phonon, plays a major role for the carriers transport under magnetic fields in space charge regime. PMID- 29335503 TI - Tuning charge carrier transport and optical birefringence in liquid-crystalline thin films: A new design space for organic light-emitting diodes. AB - Liquid-crystalline organic semiconductors exhibit unique properties that make them highly interesting for organic optoelectronic applications. Their optical and electrical anisotropies and the possibility to control the alignment of the liquid-crystalline semiconductor allow not only to optimize charge carrier transport, but to tune the optical property of organic thin-film devices as well. In this study, the molecular orientation in a liquid-crystalline semiconductor film is tuned by a novel blading process as well as by different annealing protocols. The altered alignment is verified by cross-polarized optical microscopy and spectroscopic ellipsometry. It is shown that a change in alignment of the liquid-crystalline semiconductor improves charge transport in single charge carrier devices profoundly. Comparing the current-voltage characteristics of single charge carrier devices with simulations shows an excellent agreement and from this an in-depth understanding of single charge carrier transport in two terminal devices is obtained. Finally, p-i-n type organic light-emitting diodes (OLEDs) compatible with vacuum processing techniques used in state-of-the-art OLEDs are demonstrated employing liquid-crystalline host matrix in the emission layer. PMID- 29335504 TI - Testing for the Presence of Correlation Changes in a Multivariate Time Series: A Permutation Based Approach. AB - Detecting abrupt correlation changes in multivariate time series is crucial in many application fields such as signal processing, functional neuroimaging, climate studies, and financial analysis. To detect such changes, several promising correlation change tests exist, but they may suffer from severe loss of power when there is actually more than one change point underlying the data. To deal with this drawback, we propose a permutation based significance test for Kernel Change Point (KCP) detection on the running correlations. Given a requested number of change points K, KCP divides the time series into K + 1 phases by minimizing the within-phase variance. The new permutation test looks at how the average within-phase variance decreases when K increases and compares this to the results for permuted data. The results of an extensive simulation study and applications to several real data sets show that, depending on the setting, the new test performs either at par or better than the state-of-the art significance tests for detecting the presence of correlation changes, implying that its use can be generally recommended. PMID- 29335505 TI - PERK-mediated translational control is required for collagen secretion in chondrocytes. AB - As chondrocytes are highly secretory and they experience a variety of stresses, physiological unfolded protein response (UPR) signalling is essential for extracellular matrix (ECM) secretion and chondrogenesis. In the three branches of the UPR pathway, PERK governs the translational attenuation and transcriptional upregulation of amino acid and redox metabolism and induction of apoptosis. It was previously demonstrated that a defect of the PERK branch of the UPR signalling pathway causes the accumulation of unfolded proteins, leading to cell death without perturbing endoplasmic reticulum (ER)-to-Golgi transport in pancreatic beta cells. However, little is known about the role of PERK in chondrocytes. In this study, we found that PERK signalling is activated in chondrocytes, and inhibition of PERK reduces collagen secretion despite causing excessive collagen synthesis in the ER. Perk -/- mice displayed reduced collagen in articular cartilage but no differences in chondrocyte proliferation or apoptosis compared to the findings in wild-type mice. PERK inhibition increases misfolded protein levels in the ER, which largely hinder ER-to-Golgi transport. These results suggest that the translational control mediated by PERK is a critical determinant of ECM secretion in chondrocytes. PMID- 29335506 TI - Transcriptome profiling during mangrove viviparity in response to abscisic acid. AB - Mangrove plants adapt to coastal tidal mudflats with specially evolved viviparity seed development. However, very little is known about the genetic and molecular mechanisms of mangrove viviparity. Here, we tested a hypothesis that plant hormone abscisic acid (ABA) plays a significant role in precocious germination of viviparous Kandelia obovata seeds by exogenous applications. Through transcriptome analysis of ABA treated seeds, it was found that ABA repressed mangrove fruit growth and development, and there were thousands of genes differentially expressed. As a result, dynamics of the pathways were dramatically altered. In particular, "Plant hormone signal transduction" and "MAPK signaling pathway" were represented significantly. Among differentially expressed genes, some key genes of ABA signal transduction were induced, while ABA biosynthesis genes were repressed. Take ABI1 and ABI2, key negative regulators in ABA signal pathway, as examples, homologous alignment and a phylogenetic tree in various species showed that ABI1 and ABI2 are highly conserved among various species. The functional similarity of these genes was confirmed by transgenic work in Arabidopsis. Taken together, ABA inhibited mangrove viviparity, but mangroves developed a mechanism to prevent accidently increase of ABA in the harsh environment for maintaining viviparous reproductive strategy. PMID- 29335508 TI - Label-Free, High Resolution, Multi-Modal Light Microscopy for Discrimination of Live Stem Cell Differentiation Status. AB - A label-free microscopy method for assessing the differentiation status of stem cells is presented with potential application for characterization of therapeutic stem cell populations. The microscopy system is capable of characterizing live cells based on the use of evanescent wave microscopy and quantitative phase contrast (QPC) microscopy. The capability of the microscopy system is demonstrated by studying the differentiation of live immortalised neonatal mouse neural stem cells over a 15 day time course. Metrics extracted from microscope images are assessed and images compared with results from endpoint immuno staining studies to illustrate the system's performance. Results demonstrate the potential of the microscopy system as a valuable tool for cell biologists to readily identify the differentiation status of unlabelled live cells. PMID- 29335507 TI - Highly conserved molecular pathways, including Wnt signaling, promote functional recovery from spinal cord injury in lampreys. AB - In mammals, spinal cord injury (SCI) leads to dramatic losses in neurons and synaptic connections, and consequently function. Unlike mammals, lampreys are vertebrates that undergo spontaneous regeneration and achieve functional recovery after SCI. Therefore our goal was to determine the complete transcriptional responses that occur after SCI in lampreys and to identify deeply conserved pathways that promote regeneration. We performed RNA-Seq on lamprey spinal cord and brain throughout the course of functional recovery. We describe complex transcriptional responses in the injured spinal cord, and somewhat surprisingly, also in the brain. Transcriptional responses to SCI in lampreys included transcription factor networks that promote peripheral nerve regeneration in mammals such as Atf3 and Jun. Furthermore, a number of highly conserved axon guidance, extracellular matrix, and proliferation genes were also differentially expressed after SCI in lampreys. Strikingly, ~3% of differentially expressed transcripts belonged to the Wnt pathways. These included members of the Wnt and Frizzled gene families, and genes involved in downstream signaling. Pharmacological inhibition of Wnt signaling inhibited functional recovery, confirming a critical role for this pathway. These data indicate that molecular signals present in mammals are also involved in regeneration in lampreys, supporting translational relevance of the model. PMID- 29335510 TI - TiO2 Nanoribbons/Carbon Nanotubes Composite with Enhanced Photocatalytic Activity; Fabrication, Characterization, and Application. AB - TiO2 nanoribbons (TiO2 NRs) loaded with FeCo-Al2O3 catalyst were synthesized and used as a precursor in the synthesis of TiO2 nanoribbons/carbon nanotubes (TiO2 NRs/CNTs) composite by a chemical vapor deposition (CVD) method. TiO2 NRs and TiO2 NRs/CNTs composite were characterized by XRD, FT-IR, TEM, SEM, EDX and UV Vis spectrophotometer. The results revealed the formation of TiO2-B and hydrogen titanate nanoribbon like structures by the hydrothermal treatment. After loading TiO2 NRs by FeCo-Al2O3 catalyst and the CVD growth of carbon nanotubes, the synthetic TiO2 nanoribbons converted entirely to TiO2-B nanoribbons with nanopits structure. The composite composed of tube-like nanostructures forming an interlocked network from CNTs and TiO2-B NRs. The composite shows a relatively red-shifted band gap (3.09 eV), broader and stronger UV absorption band relative to TiO2 NRs. The photocatalytic properties of TiO2 NRs and TiO2 NRs/CNTs composite were studied under sunlight irradiation. The photocatalytic degradation of methylene blue (MB) dye was investigated as a function of contact time, dye concentration, and catalyst dose. The kinetics and mechanisms of degradation were discussed. TiO2 NRs/CNTs composite showed higher stability after six runs and 50% shorter irradiation time than TiO2 NRs photocatalyst. PMID- 29335511 TI - Publisher Correction: Broad modulus range nanomechanical mapping by magnetic drive soft probes. AB - In the original version of this Article, the text labels on the bottom-right graph in Fig. 1c were inadvertently displaced during the production process. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29335509 TI - Salient type 1 interleukin 1 receptor expression in peripheral non-immune cells. AB - Interleukin 1 is a pleiotropic cytokine that mediates diverse functions through its receptor, type I interleukin 1 receptor (IL-1R1). Most previous studies have focused on the expression and function of IL-1R1 in immune cells. Here we performed a comprehensive mapping of IL-1R1 distribution in multiple peripheral tissues using our IL-1R1 reporter (IL-1R1GR/GR) mice. This method yielded the highest sensitivity of in situ detection of IL-1R1 mRNA and protein. Besides validating previously reported IL-1R1 expression in the endocrine tissues including pituitary and pancreas, our results refuted previously reported exclusive IL-1R1 expression in neurons of the spinal cord dorsal horn and dorsal root ganglia (DRG). Instead, IL-1R1 expression was detected in endothelial cells within DRG, spinal cord, pancreas, colon, muscles and many immune organs. In addition, gp38+ fibroblastic reticular cells (FRCs), rather than tissue macrophages or other immune cells, were found to express high levels of IL-1R1 in colon and many immune organs. A functional test of spleen FRCs showed that they responded rapidly to systemic IL-1beta stimulation in vivo. Taken together, this study provides a rigorous re-examination of IL-1R1 expression in peripheral tissues and reveals tissue FRCs as a previously unappreciated novel high IL-1R1 expressing cell type in peripheral IL-1 signaling. PMID- 29335512 TI - Label-free photoacoustic imaging of human palmar vessels: a structural morphological analysis. AB - We analysed the vascular morphology of the palm using a photoacoustic tomography (PAT) instrument with a hemispherical detector array. The three-dimensional (3D) morphology of blood vessels was determined noninvasively. Overall, 12 females and 11 males were recruited as healthy volunteers. Their ages were distributed almost evenly from 22 to 59 years. In all cases, many vascular networks were observed just beneath the skin and were determined to be veins anatomically. To analyse the major arteries, the layer containing the subcutaneous venous network was removed from the image. The analysis focused on the common and proper palmar digital arteries. We used the curvature of these arteries as a parameter to analyse their morphologies. There was no significant difference in the curvature between genders when comparing the subjects as a whole. The blood vessel curvature increased with age. Good agreement was found between the 3D numerical analysis results and the subjective evaluation of the two-dimensional (2D) projection image. The PAT system enabled visualization of the 3D features of blood vessels in the palm and noninvasive analysis of arterial tortuousness. PMID- 29335513 TI - Optimal ranges of variables for an effective adsorption of lead(II) by the agricultural waste pomelo (Citrus grandis) peels using Doehlert designs. AB - The capacity of pomelo peels' adsorption on lead(II) from aqueous solutions without modifications was investigated and confirmed. Four variables in this study, pH, temperature, time and initial concentration of lead(II), significantly affected the adsorption rate of pomelo peels. The prediction model and optimal ranges of optimized variables were given by Doehlert designs, which made the selection of variables rapid, flexible and effortless to obtain an adsorption rate reaching 99.9% and 20 mg/L for initial lead(II) concentration, 3 for pH, 50 degrees C for temperature and 210 min for time was a choice. The higher correlation coefficient as well as the more consistent value of experimental equilibrium adsorption capacity of the pseudo-first-order model suggested it bore a better prediction of the adsorption kinetics than the pseudo-second-order model. Langmuir model indicated the adsorption mechanism of pomelo peels was monolayer sorption with the help of both physical adsorption and chemical bonding, which were demonstrated by scanning electron microscopy and Fourier transform-infrared, respectively. The ability of pomelo peels to adsorb lead(II) from aqueous solutions was not interfered with the presence of calcium(II), magnesium(II), copper(II) and zinc(II). Pomelo peels had the potential to be utilized in the simultaneous adsorption of toxic heavy metal ions. PMID- 29335514 TI - Monitoring single-cell gene regulation under dynamically controllable conditions with integrated microfluidics and software. AB - Much is still not understood about how gene regulatory interactions control cell fate decisions in single cells, in part due to the difficulty of directly observing gene regulatory processes in vivo. We introduce here a novel integrated setup consisting of a microfluidic chip and accompanying analysis software that enable long-term quantitative tracking of growth and gene expression in single cells. The dual-input Mother Machine (DIMM) chip enables controlled and continuous variation of external conditions, allowing direct observation of gene regulatory responses to changing conditions in single cells. The Mother Machine Analyzer (MoMA) software achieves unprecedented accuracy in segmenting and tracking cells, and streamlines high-throughput curation with a novel leveraged editing procedure. We demonstrate the power of the method by uncovering several novel features of an iconic gene regulatory program: the induction of Escherichia coli's lac operon in response to a switch from glucose to lactose. PMID- 29335515 TI - Ultrafast consolidation of bulk nanocrystalline titanium alloy through ultrasonic vibration. AB - Nanocrystalline (NC) materials have fascinating physical and chemical properties, thereby they exhibit great prospects in academic and industrial fields. Highly efficient approaches for fabricating bulk NC materials have been pursued extensively over past decades. However, the instability of nanograin, which is sensitive to processing parameters (such as temperature and time), is always a challenging issue to be solved and remains to date. Herein, we report an ultrafast nanostructuring strategy, namely ultrasonic vibration consolidation (UVC). The strategy utilizes internal friction heat, generated from mutually rubbing between Ti-based metallic glass powders, to heat the glassy alloy rapidly through its supercooled liquid regime, and accelerated viscous flow bonds the powders together. Consequently, bulk NC-Ti alloy with grain size ranging from 10 to 70 nm and nearly full density is consolidated in 2 seconds. The novel consolidation approach proposed here offers a general and highly efficient pathway for manufacturing bulk nanomaterials. PMID- 29335516 TI - An evaluation of the effect of pulse-shape on grey and white matter stimulation in the rat brain. AB - Despite the current success of neuromodulation, standard biphasic, rectangular pulse shapes may not be optimal to achieve symptom alleviation. Here, we compared stimulation efficiency (in terms of charge) between complex and standard pulses in two areas of the rat brain. In motor cortex, Gaussian and interphase gap stimulation (IPG) increased stimulation efficiency in terms of charge per phase compared with a standard pulse. Moreover, IPG stimulation of the deep mesencephalic reticular formation in freely moving rats was more efficient compared to a standard pulse. We therefore conclude that complex pulses are superior to standard stimulation, as less charge is required to achieve the same behavioral effects in a motor paradigm. These results have important implications for the understanding of electrical stimulation of the nervous system and open new perspectives for the design of the next generation of safe and efficient neural implants. PMID- 29335517 TI - A versatile MOF-based trap for heavy metal ion capture and dispersion. AB - Current technologies for removing heavy metal ions are typically metal ion specific. Herein we report the development of a broad-spectrum heavy metal ion trap by incorporation of ethylenediaminetetraacetic acid into a robust metal organic framework. The capture experiments for a total of 22 heavy metal ions, covering hard, soft, and borderline Lewis metal ions, show that the trap is very effective, with removal efficiencies of >99% for single-component adsorption, multi-component adsorption, or in breakthrough processes. The material can also serve as a host for metal ion loading with arbitrary selections of metal ion amounts/types with a controllable uptake ratio to prepare well-dispersed single or multiple metal catalysts. This is supported by the excellent performance of the prepared Pd2+-loaded composite toward the Suzuki coupling reaction. This work proposes a versatile heavy metal ion trap that may find applications in the fields of separation and catalysis. PMID- 29335518 TI - Recurrence patterns after maximal surgical resection and postoperative radiotherapy in anaplastic gliomas according to the new 2016 WHO classification. AB - We assessed the appropriateness of current radiotherapy volume for WHO grade III gliomas. The records of 73 patients with WHO grade III gliomas who received postoperative radiotherapy between 2001 and 2013 were retrospectively reviewed. Based on the 2016 WHO classification, 25/73 (34.2%) patients had anaplastic oligodendroglioma (AO), IDH-mutant and 1p/19q-codeleted; 11/73 (15.1%) patients had anaplastic astrocytoma, IDH-mutant; and 37/73 (50.7%) patients had anaplastic astrocytoma, IDH-wildtype. The extent of resection (EOR) was total in 43 patients (58.9%). The median follow-up time was 84 months. The 5-year overall survival was 65.4%. Of 31 patients with documented recurrences, 20 (64.5%) had infield gross tumor volume (GTV) failure, six (19.4%) had clinical target volume (CTV)/marginal failure, and five (16.1%) had outfield failure/seeding. In 13 recurrences among 43 patients who underwent gross total resection (GTR), six (46.2%) had infield CTV/marginal failure. However, among 30 patients for whom GTR was not conducted, infield GTV failure was dominant (77.8%). Seventeen patients with AO, IDH-mutant and 1p/19q-codeleted who underwent GTR experienced no recurrence. In conclusion, maximal surgical resection and postoperative radiotherapy resulted in a favorable prognosis, especially in patients with GTR, IDH mutation, and 1p/19q codeletion. Patterns of failure differed by EOR. PMID- 29335519 TI - Metabolic reprogramming by PCK1 promotes TCA cataplerosis, oxidative stress and apoptosis in liver cancer cells and suppresses hepatocellular carcinoma. AB - Phosphoenolpyruvate carboxykinase (PEPCK or PCK) catalyzes the first rate limiting step in hepatic gluconeogenesis pathway to maintain blood glucose levels. Mammalian cells express two PCK genes, encoding for a cytoplasmic (PCPEK C or PCK1) and a mitochondrial (PEPCK-M or PCK2) isoforms, respectively. Increased expressions of both PCK genes are found in cancer of several organs, including colon, lung, and skin, and linked to increased anabolic metabolism and cell proliferation. Here, we report that the expressions of both PCK1 and PCK2 genes are downregulated in primary hepatocellular carcinoma (HCC) and low PCK expression was associated with poor prognosis in patients with HCC. Forced expression of either PCK1 or PCK2 in liver cancer cell lines results in severe apoptosis under the condition of glucose deprivation and suppressed liver tumorigenesis in mice. Mechanistically, we show that the pro-apoptotic effect of PCK1 requires its catalytic activity. We demonstrate that forced PCK1 expression in glucose-starved liver cancer cells induced TCA cataplerosis, leading to energy crisis and oxidative stress. Replenishing TCA intermediate alpha-ketoglutarate or inhibition of reactive oxygen species production blocked the cell death caused by PCK expression. Taken together, our data reveal that PCK1 is detrimental to malignant hepatocytes and suggest activating PCK1 expression as a potential treatment strategy for patients with HCC. PMID- 29335520 TI - HPV16 E6 and E7 upregulate the histone lysine demethylase KDM2B through the c MYC/miR-146a-5p axys. AB - Persistent infection by high-risk human papillomaviruses (HPVs) is associated with the development of cervical cancer and a subset of anogenital and head and neck squamous cell carcinomas. Abnormal expression of cellular microRNAs (miRNAs) plays an important role in the development of cancer, including HPV-related tumors. In this study, we demonstrated that miR-146a-5p was down-regulated by E6 and, less efficiently, by E7 of high-risk HPV16 in keratinocytes and the presence of low levels of this miRNA in cervical carcinoma cell lines and in high-risk HPV positive cervical specimens. Down-regulation of miR-146a-5p was mediated at least in part by the transcription repressor c-MYC, through binding sites in the miR 146a promoter. Overexpression of miR-146a-5p significantly inhibited proliferation and migration of keratinocytes and cervical cancer cells. The histone demethylase KDM2B was validated as a new direct target of miR-146a-5p and two putative binding sites for miR-146a-5p were identified in its 3'UTR sequence. Western blot analysis and immunohistochemistry showed that KDM2B was overexpressed in HPV16 E6/E7-positive keratinocytes, in cervical cancer cell lines, and in a subset of invasive cervical carcinomas and HPV-positive laryngeal squamous cell carcinomas. In these tumors, KDM2B overexpression was associated with c-MYC copy number gain. In vitro, silencing of KDM2B inhibited proliferation of cervical cancer cells. In conclusion, this study identified a novel player, the hystone demethylase KDM2B, in HPV-mediated tumorigenesis. E6 and, less efficiently, E7 of high-risk HPV16 up-regulated KDM2B expression in human keratinocytes through a pathway involving overexpression of c-MYC, which in turn downregulated miR-146a-5p. PMID- 29335521 TI - Non-canonical roles of PFKFB3 in regulation of cell cycle through binding to CDK4. AB - There is growing interest in studying the molecular mechanisms of crosstalk between cancer metabolism and the cell cycle. 6-phosphate fructose-2 kinase/fructose-2,6-bisphosphatase-3 (PFKFB3) is a well-known glycolytic activator that plays an important role in tumorigenesis. We investigated whether PFKFB3 was directly involved in oncogenic signaling networks. Mass Spectrometry showed that PFKFB3 interacts with cyclin-dependent kinase (CDK) 4, which controls the transition from G1 phase to S phase of the cell cycle. Further analysis indicated that lysine 147 was a key site for the binding of PFKBFB3 to CDK4. PFKFB3 binding resulted in the accumulation of CDK4 protein by inhibiting ubiquitin proteasome degradation mediated by the heat shock protein 90-Cdc37-CDK4 complex. The proteasome-dependent degradation of CDK4 was accelerated by disrupting the interaction of PFKFB3 with CDK4 by mutating lysine (147) to alanine. Blocking PFKFB3-CDK4 interaction improved the therapeutic effect of FDA approved CDK4 inhibitor palbociclib on breast cancer. These findings suggest that PFKFB3 is a hub for coordinating cell cycle and glucose metabolism. Combined targeting of PFKFB3 and CDK4 may be new strategy for breast cancer treatment. PMID- 29335522 TI - Pyruvate kinase M2 promotes pancreatic ductal adenocarcinoma invasion and metastasis through phosphorylation and stabilization of PAK2 protein. AB - Pyruvate kinase muscle isozymes (PKMs) have crucial roles in regulating metabolic changes during carcinogenesis. A switch from PKM1 to PKM2 isoform was thought to lead to aerobic glycolysis promoting carcinogenesis, and was considered as one of the cancer signatures. However, recent evidence has argued against the existence of PKM isoform switch and related metabolic effects during cancer progression. We compared the effects of PKM1 and PKM2 in cell invasiveness and metastasis of pancreatic ductal adenocarcinoma (PDAC). Both PKM1 and PKM2 expression affected cell migration and invasion abilities of PDAC cells, but only knockdown of PKM2 suppressed metastasis in a xenograft model. By comparing the established PKM2 mutants in the regulation of cell invasion, we found that PKM2 may control cell mobility through its protein kinase and phopho-peptide binding abilities. Further survey for PKM2-associated proteins identified PAK2 as a possible phosphorylation target in PDAC. In vitro binding and kinase assays revealed that PKM2 directly phosphorylated PAK2 at Ser20, Ser141, and Ser192/197. Knockdown of PKM2 decreased PAK2 protein half-life by increasing ubiquitin-dependent proteasomal degradation. Moreover, we identified PAK2 as an HSP90 client protein and the mutation at Ser192/197 of PAK2 reduced PAK2-HSP90 association. Knockdown of PAK2 diminished in vitro cell mobility and in vivo metastatic ability of PKM2 overexpressed PDAC cells. PKM2 and PAK2 protein expression also positively correlated with each other in PDAC tissues. Our findings indicate that PKM2-PAK2 regulation is critical for developing metastasis in PDAC, and suggest that targeting the PKM2/HSP90/PAK2 complex has a potential therapeutic value in this deadly disease. PMID- 29335524 TI - Kidney cancer in 2017: Challenging and refining treatment paradigms. PMID- 29335523 TI - miR-139-5p inhibits aerobic glycolysis, cell proliferation, migration, and invasion in hepatocellular carcinoma via a reciprocal regulatory interaction with ETS1. AB - Cancer cells have metabolic features that allow them to preferentially metabolize glucose through aerobic glycolysis, providing them with a progression advantage. However, microRNA (miRNA) regulation of aerobic glycolysis in cancer cells has not been extensively investigated. We addressed this in the present study by examining the regulation of miR-139-5p on aerobic glycolysis of hepatocellular carcinoma (HCC) using clinical specimens, HCC cells, and a mouse xenograft model. We found that overexpressing miR-139-5p restrained aerobic glycolysis, suppressing proliferation, migration, and invasion in HCC cells. miR-139-5p regulated hexokinase 1 (HK1) and 6-phosphofructo-2-kinase/fructose-2,6 biphosphatase 3 (PFKFB3) expression by directly targeting the transcription factor ETS1, which bound to the promoters of the HK1 and PFKFB3 genes. miR-139-5p induced aerobic glycolysis, proliferation, migration, and invasion were reversed by ETS1 overexpression, while ETS1 silencing induced the expression of miR-139-5p via a post-transcriptional regulation mode involving Drosha. miR-139-5p expression was reduced in HCC compared to para-carcinoma tissue, which was confirmed in The Cancer Genome Atlas and GSE54751 HCC cohorts. Notably, the lower expression of mir-139 was correlated with worse prognosis. These outcomes indicate that reciprocal regulatory interactions between miR-139-5p and ETS1 modulate aerobic glycolysis, proliferation, and metastasis in HCC cells, suggesting new targets for HCC treatment. PMID- 29335525 TI - Urothelial cancer: Optimizing and integrating cisplatin-based chemotherapy across the disease spectrum. PMID- 29335526 TI - Prostate cancer: Race and prostate cancer personalized medicine: the future. PMID- 29335527 TI - Myosin-Va is required for preciliary vesicle transportation to the mother centriole during ciliogenesis. AB - Primary cilia play essential roles in signal transduction and development. The docking of preciliary vesicles at the distal appendages of a mother centriole is an initial/critical step of ciliogenesis, but the mechanisms are unclear. Here, we demonstrate that myosin-Va mediates the transportation of preciliary vesicles to the mother centriole and reveal the underlying mechanism. We also show that the myosin-Va-mediated transportation of preciliary vesicles is the earliest event that defines the onset of ciliogenesis. Depletion of myosin-Va significantly inhibits the attachment of preciliary vesicles to the distal appendages of the mother centriole and decreases cilia assembly. Myosin-Va functions upstream of EHD1- and Rab11-mediated ciliary vesicle formation. Importantly, dynein mediates myosin-Va-associated preciliary vesicle transportation to the pericentrosomal region along microtubules, while myosin-Va mediates preciliary vesicle transportation from the pericentrosomal region to the distal appendages of the mother centriole via the Arp2/3-associated branched actin network. PMID- 29335528 TI - EXD2 governs germ stem cell homeostasis and lifespan by promoting mitoribosome integrity and translation. AB - Mitochondria are subcellular organelles that are critical for meeting the bioenergetic and biosynthetic needs of the cell. Mitochondrial function relies on genes and RNA species encoded both in the nucleus and mitochondria, and on their coordinated translation, import and respiratory complex assembly. Here, we characterize EXD2 (exonuclease 3'-5' domain-containing 2), a nuclear-encoded gene, and show that it is targeted to the mitochondria and prevents the aberrant association of messenger RNAs with the mitochondrial ribosome. Loss of EXD2 results in defective mitochondrial translation, impaired respiration, reduced ATP production, increased reactive oxygen species and widespread metabolic abnormalities. Depletion of the Drosophila melanogaster EXD2 orthologue (CG6744) causes developmental delays and premature female germline stem cell attrition, reduced fecundity and a dramatic extension of lifespan that is reversed with an antioxidant diet. Our results define a conserved role for EXD2 in mitochondrial translation that influences development and ageing. PMID- 29335529 TI - Transient Scute activation via a self-stimulatory loop directs enteroendocrine cell pair specification from self-renewing intestinal stem cells. AB - The process through which multiple types of cell-lineage-restricted progenitor cells are specified from multipotent stem cells is unclear. Here we show that, in intestinal stem cell lineages in adult Drosophila, in which the Delta-Notch signalling-guided progenitor cell differentiation into enterocytes is the default mode, the specification of enteroendocrine cells (EEs) is initiated by transient Scute activation in a process driven by transcriptional self-stimulation combined with a negative feedback regulation between Scute and Notch targets. Scute activation induces asymmetric intestinal stem cell divisions that generate EE progenitor cells. The mitosis-inducing and fate-inducing activities of Scute guide each EE progenitor cell to divide exactly once prior to its terminal differentiation, yielding a pair of EEs. The transient expression of a fate inducer therefore specifies both type and numbers of committed progenitor cells originating from stem cells, which could represent a general mechanism used for diversifying committed progenitor cells from multipotent stem cells. PMID- 29335530 TI - Segregation of mitochondrial DNA heteroplasmy through a developmental genetic bottleneck in human embryos. AB - Mitochondrial DNA (mtDNA) mutations cause inherited diseases and are implicated in the pathogenesis of common late-onset disorders, but how they arise is not clear1,2. Here we show that mtDNA mutations are present in primordial germ cells (PGCs) within healthy female human embryos. Isolated PGCs have a profound reduction in mtDNA content, with discrete mitochondria containing ~5 mtDNA molecules. Single-cell deep mtDNA sequencing of in vivo human female PGCs showed rare variants reaching higher heteroplasmy levels in late PGCs, consistent with the observed genetic bottleneck. We also saw the signature of selection against non-synonymous protein-coding, tRNA gene and D-loop variants, concomitant with a progressive upregulation of genes involving mtDNA replication and transcription, and linked to a transition from glycolytic to oxidative metabolism. The associated metabolic shift would expose deleterious mutations to selection during early germ cell development, preventing the relentless accumulation of mtDNA mutations in the human population predicted by Muller's ratchet. Mutations escaping this mechanism will show shifts in heteroplasmy levels within one human generation, explaining the extreme phenotypic variation seen in human pedigrees with inherited mtDNA disorders. PMID- 29335531 TI - Publisher Correction: Coherent diffractive imaging of single helium nanodroplets with a high harmonic generation source. AB - In the original version of this Article, the affiliation for Luca Poletto was incorrectly given as 'European XFEL GmbH, Holzkoppel 4, 22869 Schenefeld, Hamburg, Germany', instead of the correct 'CNR, Istituto di Fotonica e Nanotecnologie Padova, Via Trasea 7, 35131 Padova, Italy'. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29335532 TI - Intelligent image-based in situ single-cell isolation. AB - Quantifying heterogeneities within cell populations is important for many fields including cancer research and neurobiology; however, techniques to isolate individual cells are limited. Here, we describe a high-throughput, non disruptive, and cost-effective isolation method that is capable of capturing individually targeted cells using widely available techniques. Using high resolution microscopy, laser microcapture microscopy, image analysis, and machine learning, our technology enables scalable molecular genetic analysis of single cells, targetable by morphology or location within the sample. PMID- 29335533 TI - Fc-modified exenatide-loaded nanoparticles for oral delivery to improve hypoglycemic effects in mice. AB - To improve the oral efficiency of exenatide, we prepared polyethylene glycol poly(lactic-co-glycolic acid) (PEG-PLGA) NPs modified with Fc (NPs-Fc) for exenatide oral delivery. Exenatide was encapsulated into the NPs by the w/o/w emulsion-solvent evaporation method. The particle size of the NPs-Fc was approximately 30 nm larger than that of the unmodified NPs with polydispersity indices in a narrow range (PDIs; PDI < 0.3) as detected by DLS, and the highest encapsulation efficiency of exenatide in the NPs was greater than 80%. Fc conjugated NPs permeated Caco-2 cells faster and to a greater extent compared to unmodified NPs, as verified by CLSM and flow cytometry. Hypoglycemic effect studies demonstrated that oral administration of exenatide-loaded PEG-PLGA NPs modified by an Fc group extended the hypoglycemic effects compared with s.c. injection of the exenatide solution. Fluorescence-labeled NPs were used to investigate the effects of Fc targeting, and the results demonstrated that the NPs-Fc stayed in the gastrointestinal tract for a longer time in comparison with the unmodified NPs, as shown by the whole-body fluorescence images and fluorescence images of the dissected organs detected by in vivo imaging in live mice. Therefore, Fc-targeted nano-delivery systems show great promise for oral peptide/protein drug delivery. PMID- 29335534 TI - Cell-type specific potent Wnt signaling blockade by bispecific antibody. AB - Cell signaling pathways are often shared between normal and diseased cells. How to achieve cell type-specific, potent inhibition of signaling pathways is a major challenge with implications for therapeutic development. Using the Wnt/beta catenin signaling pathway as a model system, we report here a novel and generally applicable method to achieve cell type-selective signaling blockade. We constructed a bispecific antibody targeting the Wnt co-receptor LRP6 (the effector antigen) and a cell type-associated antigen (the guide antigen) that provides the targeting specificity. We found that the bispecific antibody inhibits Wnt-induced reporter activities with over one hundred-fold enhancement in potency, and in a cell type-selective manner. Potency enhancement is dependent on the expression level of the guide antigen on the target cell surface and the apparent affinity of the anti-guide antibody. Both internalizing and non internalizing guide antigens can be used, with internalizing bispecific antibody being able to block signaling by all ligands binding to the target receptor due to its removal from the cell surface. It is thus feasible to develop bispecific based therapeutic strategies that potently and selectively inhibit signaling pathways in a cell type-selective manner, creating opportunity for therapeutic targeting. PMID- 29335535 TI - A multi-omics study of the grapevine-downy mildew (Plasmopara viticola) pathosystem unveils a complex protein coding- and noncoding-based arms race during infection. AB - Fungicides are applied intensively to prevent downy mildew infections of grapevines (Vitis vinifera) with high impact on the environment. In order to develop alternative strategies we sequenced the genome of the oomycete pathogen Plasmopara viticola causing this disease. We show that it derives from a Phytophthora-like ancestor that switched to obligate biotrophy by losing genes involved in nitrogen metabolism and gamma-Aminobutyric acid catabolism. By combining multiple omics approaches we characterized the pathosystem and identified a RxLR effector that trigger an immune response in the wild species V. riparia. This effector is an ideal marker to screen novel grape resistant varieties. Our study reveals an unprecedented bidirectional noncoding RNA-based mechanism that, in one direction might be fundamental for P. viticola to proficiently infect its host, and in the other might reduce the effects of the infection on the plant. PMID- 29335536 TI - Characterizing the dynamics underlying global spread of epidemics. AB - Over the past few decades, global metapopulation epidemic simulations built with worldwide air-transportation data have been the main tool for studying how epidemics spread from the origin to other parts of the world (e.g., for pandemic influenza, SARS, and Ebola). However, it remains unclear how disease epidemiology and the air-transportation network structure determine epidemic arrivals for different populations around the globe. Here, we fill this knowledge gap by developing and validating an analytical framework that requires only basic analytics from stochastic processes. We apply this framework retrospectively to the 2009 influenza pandemic and 2014 Ebola epidemic to show that key epidemic parameters could be robustly estimated in real-time from public data on local and global spread at very low computational cost. Our framework not only elucidates the dynamics underlying global spread of epidemics but also advances our capability in nowcasting and forecasting epidemics. PMID- 29335537 TI - A bony-crested Jurassic dinosaur with evidence of iridescent plumage highlights complexity in early paravian evolution. AB - The Jurassic Yanliao theropods have offered rare glimpses of the early paravian evolution and particularly of bird origins, but, with the exception of the bizarre scansoriopterygids, they have shown similar skeletal and integumentary morphologies. Here we report a distinctive new Yanliao theropod species bearing prominent lacrimal crests, bony ornaments previously known from more basal theropods. It shows longer arm and leg feathers than Anchiornis and tail feathers with asymmetrical vanes forming a tail surface area even larger than that in Archaeopteryx. Nanostructures, interpreted as melanosomes, are morphologically similar to organized, platelet-shaped organelles that produce bright iridescent colours in extant birds. The new species indicates the presence of bony ornaments, feather colour and flight-related features consistent with proposed rapid character evolution and significant diversity in signalling and locomotor strategies near bird origins. PMID- 29335538 TI - Speed-related activation in the mesolimbic dopamine system during the observation of driver-view videos. AB - Despite the ubiquity and importance of speeding offenses, there has been little neuroscience research regarding the propensity for speeding among vehicle drivers. In the current study, as a first attempt, we examined the hypothesis that visual inputs during high-speed driving would activate the mesolimbic dopaminergic system that plays an important role in mediating motivational craving. To this end, we used functional magnetic resonance imaging to identify speed-related activation changes in mesolimbic dopaminergic regions during the observation of driver-view videos in two groups that differed in self-reported speeding propensity. Results revealed, as we expected, greater activation in the ventral tegmental area (VTA) in response to driver-view videos with higher speed. Contrary to our expectation, however, we found no significant between-group difference in speed-related activation changes in mesolimbic dopaminergic regions. Instead, an exploratory psychophysiological interaction analysis found that self-reported speeding propensity was associated with speed-related functional coupling between the VTA and the right intraparietal sulcus. Further validation of our hypothesis will require future studies examining associations between speed-related activation in the mesolimbic dopaminergic system and individual differences in speeding propensity, using a more reliable measure of actual speeding propensity in real traffic. PMID- 29335540 TI - Publisher Correction: Acoustic allometry revisited: morphological determinants of fundamental frequency in primate vocal production. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has not been fixed in the paper. PMID- 29335539 TI - Brain activity patterns in high-throughput electrophysiology screen predict both drug efficacies and side effects. AB - Neurological drugs are often associated with serious side effects, yet drug screens typically focus only on efficacy. We demonstrate a novel paradigm utilizing high-throughput in vivo electrophysiology and brain activity patterns (BAPs). A platform with high sensitivity records local field potentials (LFPs) simultaneously from many zebrafish larvae over extended periods. We show that BAPs from larvae experiencing epileptic seizures or drug-induced side effects have substantially reduced complexity (entropy), similar to reduced LFP complexity observed in Parkinson's disease. To determine whether drugs that enhance BAP complexity produces positive outcomes, we used light pulses to trigger seizures in a model of Dravet syndrome, an intractable genetic epilepsy. The highest-ranked compounds identified by BAP analysis exhibit far greater anti seizure efficacy and fewer side effects during subsequent in-depth behavioral assessment. This high correlation with behavioral outcomes illustrates the power of brain activity pattern-based screens and identifies novel therapeutic candidates with minimal side effects. PMID- 29335541 TI - Modulation of UVB-induced Carcinogenesis by Activation of Alternative DNA Repair Pathways. AB - The molecular basis for ultraviolet (UV) light-induced nonmelanoma and melanoma skin cancers centers on cumulative genomic instability caused by inefficient DNA repair of dipyrimidine photoproducts. Inefficient DNA repair and subsequent translesion replication past these DNA lesions generate distinct molecular signatures of tandem CC to TT and C to T transitions at dipyrimidine sites. Since previous efforts to develop experimental strategies to enhance the repair capacity of basal keratinocytes have been limited, we have engineered the N terminally truncated form (Delta228) UV endonuclease (UVDE) from Schizosaccharomyces pombe to include a TAT cell-penetrating peptide sequence with or without a nuclear localization signal (NLS): UVDE-TAT and UVDE-NLS-TAT. Further, a NLS was engineered onto a pyrimidine dimer glycosylase from Paramecium bursaria chlorella virus-1 (cv-pdg-NLS). Purified enzymes were encapsulated into liposomes and topically delivered to the dorsal surface of SKH1 hairless mice in a UVB-induced carcinogenesis study. Total tumor burden was significantly reduced in mice receiving either UVDE-TAT or UVDE-NLS-TAT versus control empty liposomes and time to death was significantly reduced with the UVDE-NLS-TAT. These data suggest that efficient delivery of exogenous enzymes for the initiation of repair of UVB-induced DNA damage may protect from UVB induction of squamous and basal cell carcinomas. PMID- 29335543 TI - Genetics of lipid metabolism in prostate cancer. PMID- 29335542 TI - Compartmentalized activities of the pyruvate dehydrogenase complex sustain lipogenesis in prostate cancer. AB - The mechanisms by which mitochondrial metabolism supports cancer anabolism remain unclear. Here, we found that genetic and pharmacological inactivation of pyruvate dehydrogenase A1 (PDHA1), a subunit of the pyruvate dehydrogenase complex (PDC), inhibits prostate cancer development in mouse and human xenograft tumor models by affecting lipid biosynthesis. Mechanistically, we show that in prostate cancer, PDC localizes in both the mitochondria and the nucleus. Whereas nuclear PDC controls the expression of sterol regulatory element-binding transcription factor (SREBF)-target genes by mediating histone acetylation, mitochondrial PDC provides cytosolic citrate for lipid synthesis in a coordinated manner, thereby sustaining anabolism. Additionally, we found that PDHA1 and the PDC activator pyruvate dehydrogenase phosphatase 1 (PDP1) are frequently amplified and overexpressed at both the gene and protein levels in prostate tumors. Together, these findings demonstrate that both mitochondrial and nuclear PDC sustain prostate tumorigenesis by controlling lipid biosynthesis, thus suggesting this complex as a potential target for cancer therapy. PMID- 29335544 TI - Transposon-derived small RNAs triggered by miR845 mediate genome dosage response in Arabidopsis. AB - Chromosome dosage has substantial effects on reproductive isolation and speciation in both plants and animals, but the underlying mechanisms are largely obscure 1 . Transposable elements in animals can regulate hybridity through maternal small RNA 2 , whereas small RNAs in plants have been postulated to regulate dosage response via neighboring imprinted genes3,4. Here we show that a highly conserved microRNA in plants, miR845, targets the tRNAMet primer-binding site (PBS) of long terminal repeat (LTR) retrotransposons in Arabidopsis pollen, and triggers the accumulation of 21-22-nucleotide (nt) small RNAs in a dose dependent fashion via RNA polymerase IV. We show that these epigenetically activated small interfering RNAs (easiRNAs) mediate hybridization barriers between diploid seed parents and tetraploid pollen parents (the 'triploid block'), and that natural variation for miR845 may account for 'endosperm balance' allowing the formation of triploid seeds. Targeting of the PBS with small RNA is a common mechanism for transposon control in mammals and plants, and provides a uniquely sensitive means to monitor chromosome dosage and imprinting in the developing seed. PMID- 29335545 TI - An aberrant SREBP-dependent lipogenic program promotes metastatic prostate cancer. AB - Lipids, either endogenously synthesized or exogenous, have been linked to human cancer. Here we found that PML is frequently co-deleted with PTEN in metastatic human prostate cancer (CaP). We demonstrated that conditional inactivation of Pml in the mouse prostate morphs indolent Pten-null tumors into lethal metastatic disease. We identified MAPK reactivation, subsequent hyperactivation of an aberrant SREBP prometastatic lipogenic program, and a distinctive lipidomic profile as key characteristic features of metastatic Pml and Pten double-null CaP. Furthermore, targeting SREBP in vivo by fatostatin blocked both tumor growth and distant metastasis. Importantly, a high-fat diet (HFD) induced lipid accumulation in prostate tumors and was sufficient to drive metastasis in a nonmetastatic Pten-null mouse model of CaP, and an SREBP signature was highly enriched in metastatic human CaP. Thus, our findings uncover a prometastatic lipogenic program and lend direct genetic and experimental support to the notion that a Western HFD can promote metastasis. PMID- 29335547 TI - Pan-genome analysis highlights the extent of genomic variation in cultivated and wild rice. AB - The rich genetic diversity in Oryza sativa and Oryza rufipogon serves as the main sources in rice breeding. Large-scale resequencing has been undertaken to discover allelic variants in rice, but much of the information for genetic variation is often lost by direct mapping of short sequence reads onto the O. sativa japonica Nipponbare reference genome. Here we constructed a pan-genome dataset of the O. sativa-O. rufipogon species complex through deep sequencing and de novo assembly of 66 divergent accessions. Intergenomic comparisons identified 23 million sequence variants in the rice genome. This catalog of sequence variations includes many known quantitative trait nucleotides and will be helpful in pinpointing new causal variants that underlie complex traits. In particular, we systemically investigated the whole set of coding genes using this pan-genome data, which revealed extensive presence and absence of variation among rice accessions. This pan-genome resource will further promote evolutionary and functional studies in rice. PMID- 29335546 TI - Transcription factors orchestrate dynamic interplay between genome topology and gene regulation during cell reprogramming. AB - Chromosomal architecture is known to influence gene expression, yet its role in controlling cell fate remains poorly understood. Reprogramming of somatic cells into pluripotent stem cells (PSCs) by the transcription factors (TFs) OCT4, SOX2, KLF4 and MYC offers an opportunity to address this question but is severely limited by the low proportion of responding cells. We have recently developed a highly efficient reprogramming protocol that synchronously converts somatic into pluripotent stem cells. Here, we used this system to integrate time-resolved changes in genome topology with gene expression, TF binding and chromatin-state dynamics. The results showed that TFs drive topological genome reorganization at multiple architectural levels, often before changes in gene expression. Removal of locus-specific topological barriers can explain why pluripotency genes are activated sequentially, instead of simultaneously, during reprogramming. Together, our results implicate genome topology as an instructive force for implementing transcriptional programs and cell fate in mammals. PMID- 29335548 TI - Paternal easiRNAs regulate parental genome dosage in Arabidopsis. AB - The regulation of parental genome dosage is of fundamental importance in animals and plants, as exemplified by X-chromosome inactivation and dosage compensation. The 'triploid block' is a classic example of dosage regulation in plants that establishes a reproductive barrier between species differing in chromosome number1,2. This barrier acts in the embryo-nourishing endosperm tissue and induces the abortion of hybrid seeds through a yet unknown mechanism 3 . Here we show that depletion of paternal epigenetically activated small interfering RNAs (easiRNAs) bypasses the triploid block in response to increased paternal ploidy in Arabidopsis thaliana. Paternal loss of the plant-specific RNA polymerase IV suppressed easiRNA formation and rescued triploid seeds by restoring small-RNA directed DNA methylation at transposable elements (TEs), correlating with reduced expression of paternally expressed imprinted genes (PEGs). Our data suggest that easiRNAs form a quantitative signal for paternal chromosome number and that their balanced dosage is required for post-fertilization genome stability and seed viability. PMID- 29335549 TI - Reconstructing an African haploid genome from the 18th century. AB - A genome is a mosaic of chromosome fragments from ancestors who existed some arbitrary number of generations earlier. Here, we reconstruct the genome of Hans Jonatan (HJ), born in the Caribbean in 1784 to an enslaved African mother and European father. HJ migrated to Iceland in 1802, married and had two children. We genotyped 182 of his 788 descendants using single-nucleotide polymorphism (SNP) chips and whole-genome sequenced (WGS) 20 of them. Using these data, we reconstructed 38% of HJ's maternal genome and inferred that his mother was from the region spanned by Benin, Nigeria and Cameroon. PMID- 29335550 TI - The PEG-responding desiccome of the alder microsymbiont Frankia alni. AB - Actinorhizal plants are ecologically and economically important. Symbiosis with nitrogen-fixing bacteria allows these woody dicotyledonous plants to colonise soils under nitrogen deficiency, water-stress or other extreme conditions. However, proteins involved in xerotolerance of symbiotic microorganisms have yet to be identified. Here we characterise the polyethylene glycol (PEG)-responding desiccome from the most geographically widespread Gram-positive nitrogen-fixing plant symbiont, Frankia alni, by next-generation proteomics, taking advantage of a Q-Exactive HF tandem mass spectrometer equipped with an ultra-high-field Orbitrap analyser. A total of 2,052 proteins were detected and quantified. Under osmotic stress, PEG-grown F. alni cells increased the abundance of envelope associated proteins like ABC transporters, mechano-sensitive ion channels and Clustered Regularly Interspaced Short Palindromic Repeats CRISPR-associated (cas) components. Conjointly, dispensable pathways, like nitrogen fixation, aerobic respiration and homologous recombination, were markedly down-regulated. Molecular modelling and docking simulations suggested that the PEG is acting on Frankia partly by filling the inner part of an up-regulated osmotic-stress large conductance mechanosensitive channel. PMID- 29335552 TI - A pathway for biological methane production using bacterial iron-only nitrogenase. AB - Methane (CH4) is a potent greenhouse gas that is released from fossil fuels and is also produced by microbial activity, with at least one billion tonnes of CH4 being formed and consumed by microorganisms in a single year 1 . Complex methanogenesis pathways used by archaea are the main route for bioconversion of carbon dioxide (CO2) to CH4 in nature2-4. Here, we report that wild-type iron iron (Fe-only) nitrogenase from the bacterium Rhodopseudomonas palustris reduces CO2 simultaneously with nitrogen gas (N2) and protons to yield CH4, ammonia (NH3) and hydrogen gas (H2) in a single enzymatic step. The amount of CH4 produced by purified Fe-only nitrogenase was low compared to its other products, but CH4 production by this enzyme in R. palustris was sufficient to support the growth of an obligate CH4-utilizing Methylomonas strain when the two microorganisms were grown in co-culture, with oxygen (O2) added at intervals. Other nitrogen-fixing bacteria that we tested also formed CH4 when expressing Fe-only nitrogenase, suggesting that this is a general property of this enzyme. The genomes of 9% of diverse nitrogen-fixing microorganisms from a range of environments encode Fe only nitrogenase. Our data suggest that active Fe-only nitrogenase, present in diverse microorganisms, contributes CH4 that could shape microbial community interactions. PMID- 29335553 TI - Mutations in ppe38 block PE_PGRS secretion and increase virulence of Mycobacterium tuberculosis. AB - Mycobacterium tuberculosis requires a large number of secreted and exported proteins for its virulence, immune modulation and nutrient uptake. Most of these proteins are transported by the different type VII secretion systems1,2. The most recently evolved type VII secretion system, ESX-5, secretes dozens of substrates belonging to the PE and PPE families, which are named for conserved proline and glutamic acid residues close to the amino terminus3,4. However, the role of these proteins remains largely elusive 1 . Here, we show that mutations of ppe38 completely block the secretion of two large subsets of ESX-5 substrates, that is, PPE-MPTR and PE_PGRS, together comprising >80 proteins. Importantly, hypervirulent clinical M. tuberculosis strains of the Beijing lineage have such a mutation and a concomitant loss of secretion 5 . Restoration of PPE38-dependent secretion partially reverted the hypervirulence phenotype of a Beijing strain, and deletion of ppe38 in moderately virulent M. tuberculosis increased virulence. This indicates that these ESX-5 substrates have an important role in virulence attenuation. Phylogenetic analysis revealed that deletion of ppe38 occurred at the branching point of the 'modern' Beijing sublineage and is shared by Beijing outbreak strains worldwide, suggesting that this deletion may have contributed to their success and global distribution6,7. PMID- 29335551 TI - Tumor-derived exosomal miR-1247-3p induces cancer-associated fibroblast activation to foster lung metastasis of liver cancer. AB - The communication between tumor-derived elements and stroma in the metastatic niche has a critical role in facilitating cancer metastasis. Yet, the mechanisms tumor cells use to control metastatic niche formation are not fully understood. Here we report that in the lung metastatic niche, high-metastatic hepatocellular carcinoma (HCC) cells exhibit a greater capacity to convert normal fibroblasts to cancer-associated fibroblasts (CAFs) than low-metastatic HCC cells. We show high metastatic HCC cells secrete exosomal miR-1247-3p that directly targets B4GALT3, leading to activation of beta1-integrin-NF-kappaB signaling in fibroblasts. Activated CAFs further promote cancer progression by secreting pro-inflammatory cytokines, including IL-6 and IL-8. Clinical data show high serum exosomal miR 1247-3p levels correlate with lung metastasis in HCC patients. These results demonstrate intercellular crosstalk between tumor cells and fibroblasts is mediated by tumor-derived exosomes that control lung metastasis of HCC, providing potential targets for prevention and treatment of cancer metastasis. PMID- 29335555 TI - Metatranscriptome of human faecal microbial communities in a cohort of adult men. AB - The gut microbiome is intimately related to human health, but it is not yet known which functional activities are driven by specific microorganisms' ecological configurations or transcription. We report a large-scale investigation of 372 human faecal metatranscriptomes and 929 metagenomes from a subset of 308 men in the Health Professionals Follow-Up Study. We identified a metatranscriptomic 'core' universally transcribed over time and across participants, often by different microorganisms. In contrast to the housekeeping functions enriched in this core, a 'variable' metatranscriptome included specialized pathways that were differentially expressed both across participants and among microorganisms. Finally, longitudinal metagenomic profiles allowed ecological interaction network reconstruction, which remained stable over the six-month timespan, as did strain tracking within and between participants. These results provide an initial characterization of human faecal microbial ecology into core, subject-specific, microorganism-specific and temporally variable transcription, and they differentiate metagenomically versus metatranscriptomically informative aspects of the human faecal microbiome. PMID- 29335554 TI - Stability of the human faecal microbiome in a cohort of adult men. AB - Characterizing the stability of the gut microbiome is important to exploit it as a therapeutic target and diagnostic biomarker. We metagenomically and metatranscriptomically sequenced the faecal microbiomes of 308 participants in the Health Professionals Follow-Up Study. Participants provided four stool samples-one pair collected 24-72 h apart and a second pair ~6 months later. Within-person taxonomic and functional variation was consistently lower than between-person variation over time. In contrast, metatranscriptomic profiles were comparably variable within and between subjects due to higher within-subject longitudinal variation. Metagenomic instability accounted for ~74% of corresponding metatranscriptomic instability. The rest was probably attributable to sources such as regulation. Among the pathways that were differentially regulated, most were consistently over- or under-transcribed at each time point. Together, these results suggest that a single measurement of the faecal microbiome can provide long-term information regarding organismal composition and functional potential, but repeated or short-term measures may be necessary for dynamic features identified by metatranscriptomics. PMID- 29335556 TI - Thermodynamic insight into stimuli-responsive behaviour of soft porous crystals. AB - Knowledge of the thermodynamic potential in terms of the independent variables allows to characterize the macroscopic state of the system. However, in practice, it is difficult to access this potential experimentally due to irreversible transitions that occur between equilibrium states. A showcase example of sudden transitions between (meta)stable equilibrium states is observed for soft porous crystals possessing a network with long-range structural order, which can transform between various states upon external stimuli such as pressure, temperature and guest adsorption. Such phase transformations are typically characterized by large volume changes and may be followed experimentally by monitoring the volume change in terms of certain external triggers. Herein, we present a generalized thermodynamic approach to construct the underlying Helmholtz free energy as a function of the state variables that governs the observed behaviour based on microscopic simulations. This concept allows a unique identification of the conditions under which a material becomes flexible. PMID- 29335557 TI - A framework for quantifying the relationship between intensity and severity of impact of disturbance across types of events and species. AB - Understanding the impacts of natural disturbances on wildlife populations is a central task for ecologists; in general, the severity of impact of a disturbance (e.g., the resulting degree of population decline) is likely to depend primarily on the disturbance intensity (i.e., strength of forcing), type of disturbance, and species vulnerability. However, differences among disturbance events in the physical units of forcing and interspecific differences in the temporal variability of population size under normal (non-disturbance) conditions hinder comprehensive analysis of disturbance severity. Here, we propose new measures of disturbance intensity and severity, both represented by the return periods. We use a meta-analysis to describe the severity-intensity relationship across various disturbance types and species. The severity and the range of its 95% confidential interval increased exponentially with increasing intensity. This nonlinear relationship suggests that physically intense events may have a catastrophic impact, but their severity cannot be extrapolated from the severity intensity relationship for weak, frequent disturbance events. The framework we propose may help to clarify the influence of event types and species traits on the severity-intensity relationship, as well as to improve our ability to predict the ecological consequences of various disturbance events of unexperienced intensity. PMID- 29335558 TI - Strongly exchange-coupled and surface-state-modulated magnetization dynamics in Bi2Se3/yttrium iron garnet heterostructures. AB - Harnessing the spin-momentum locking of topological surface states in conjunction with magnetic materials is the first step to realize novel topological insulator based devices. Here, we report strong interfacial coupling in Bi2Se3/yttrium iron garnet (YIG) bilayers manifested as large interfacial in-plane magnetic anisotropy (IMA) and enhancement of damping probed by ferromagnetic resonance. The interfacial IMA and damping enhancement reaches a maximum when the Bi2Se3 film approaches its two-dimensional limit, indicating that topological surface states play an important role in the magnetization dynamics of YIG. Temperature dependent ferromagnetic resonance of Bi2Se3/YIG reveals signatures of the magnetic proximity effect of TC as high as 180 K, an emerging low-temperature perpendicular magnetic anisotropy competing the high-temperature IMA, and an increasing exchange effective field of YIG steadily increasing toward low temperature. Our study sheds light on the effects of topological insulators on magnetization dynamics, essential for the development of topological insulator based spintronic devices. PMID- 29335559 TI - Publisher Correction: Fusion guide RNAs for orthogonal gene manipulation with Cas9 and Cpf1. AB - The originally published version of this Article contained an error in the spelling of the author Da-eun Kim, which was incorrectly given as Da-Eun Kim. Furthermore, in Figure 1a, the Cas9 protein was positioned incorrectly during typesetting. These errors have now been corrected in both the PDF and HTML versions of the Article. PMID- 29335560 TI - Ligands with 1,10-phenanthroline scaffold for highly regioselective iron catalyzed alkene hydrosilylation. AB - Transition-metal-catalyzed alkene hydrosilylation is one of the most important homogeneous catalytic reactions, and the development of methods that use base metals, especially iron, as catalysts for this transformation is a growing area of research. However, the limited number of ligand scaffolds applicable for base metal-catalyzed alkene hydrosilylation has seriously hindered advances in this area. Herein, we report the use of 1,10-phenanthroline ligands in base-metal catalysts for alkene hydrosilylation. In particular, iron catalysts with 2,9 diaryl-1,10-phenanthroline ligands exhibit unexpected reactivity and selectivity for hydrosilylation of alkenes, including unique benzylic selectivity with internal alkenes, Markovnikov selectivity with terminal styrenes and 1,3-dienes, and excellent activity toward aliphatic terminal alkenes. According to the mechanistic studies, the unusual benzylic selectivity of this hydrosilylation initiates from pi-pi interaction between the phenyl of the alkene and the phenanthroline of the ligand. This ligand scaffold and its unique catalytic model will open possibilities for base-metal-catalyzed hydrosilylation reactions. PMID- 29335561 TI - Sub-angstrom cryo-EM structure of a prion protofibril reveals a polar clasp. AB - The atomic structure of the infectious, protease-resistant, beta-sheet-rich and fibrillar mammalian prion remains unknown. Through the cryo-EM method MicroED, we reveal the sub-angstrom-resolution structure of a protofibril formed by a wild type segment from the beta2-alpha2 loop of the bank vole prion protein. The structure of this protofibril reveals a stabilizing network of hydrogen bonds that link polar zippers within a sheet, producing motifs we have named 'polar clasps'. PMID- 29335562 TI - Cryo-EM structure of the exocyst complex. AB - The exocyst is an evolutionarily conserved octameric protein complex that mediates the tethering of post-Golgi secretory vesicles to the plasma membrane during exocytosis and is implicated in many cellular processes such as cell polarization, cytokinesis, ciliogenesis and tumor invasion. Using cryo-EM and chemical cross-linking MS (CXMS), we solved the structure of the Saccharomyces cerevisiae exocyst complex at an average resolution of 4.4 A. Our model revealed the architecture of the exocyst and led to the identification of the helical bundles that mediate the assembly of the complex at its core. Sequence analysis suggests that these regions are evolutionarily conserved across eukaryotic systems. Additional cell biological data suggest a mechanism for exocyst assembly that leads to vesicle tethering at the plasma membrane. PMID- 29335564 TI - Electrical control of charged carriers and excitons in atomically thin materials. AB - Electrical confinement and manipulation of charge carriers in semiconducting nanostructures are essential for realizing functional quantum electronic devices1 3. The unique band structure4-7 of atomically thin transition metal dichalcogenides (TMDs) offers a new route towards realizing novel 2D quantum electronic devices, such as valleytronic devices and valley-spin qubits 8 . 2D TMDs also provide a platform for novel quantum optoelectronic devices9-11 due to their large exciton binding energy12,13. However, controlled confinement and manipulation of electronic and excitonic excitations in TMD nanostructures have been technically challenging due to the prevailing disorder in the material, preventing accurate experimental control of local confinement and tunnel couplings14-16. Here we demonstrate a novel method for creating high-quality heterostructures composed of atomically thin materials that allows for efficient electrical control of excitations. Specifically, we demonstrate quantum transport in the gate-defined, quantum-confined region, observing spin-valley locked quantized conductance in quantum point contacts. We also realize gate-controlled Coulomb blockade associated with confinement of electrons and demonstrate electrical control over charged excitons with tunable local confinement potentials and tunnel couplings. Our work provides a basis for novel quantum opto electronic devices based on manipulation of charged carriers and excitons. PMID- 29335563 TI - Visualization and analysis of non-covalent contacts using the Protein Contacts Atlas. AB - Visualizations of biomolecular structures empower us to gain insights into biological functions, generate testable hypotheses, and communicate biological concepts. Typical visualizations (such as ball and stick) primarily depict covalent bonds. In contrast, non-covalent contacts between atoms, which govern normal physiology, pathogenesis, and drug action, are seldom visualized. We present the Protein Contacts Atlas, an interactive resource of non-covalent contacts from over 100,000 PDB crystal structures. We developed multiple representations for visualization and analysis of non-covalent contacts at different scales of organization: atoms, residues, secondary structure, subunits, and entire complexes. The Protein Contacts Atlas enables researchers from different disciplines to investigate diverse questions in the framework of non covalent contacts, including the interpretation of allostery, disease mutations and polymorphisms, by exploring individual subunits, interfaces, and protein ligand contacts and by mapping external information. The Protein Contacts Atlas is available at http://www.mrc-lmb.cam.ac.uk/pca/ and also through PDBe. PMID- 29335565 TI - Ballistic Majorana nanowire devices. AB - Majorana modes are zero-energy excitations of a topological superconductor that exhibit non-Abelian statistics1-3. Following proposals for their detection in a semiconductor nanowire coupled to an s-wave superconductor4,5, several tunnelling experiments reported characteristic Majorana signatures6-11. Reducing disorder has been a prime challenge for these experiments because disorder can mimic the zero-energy signatures of Majoranas12-16, and renders the topological properties inaccessible17-20. Here, we show characteristic Majorana signatures in InSb nanowire devices exhibiting clear ballistic transport properties. Application of a magnetic field and spatial control of carrier density using local gates generates a zero bias peak that is rigid over a large region in the parameter space of chemical potential, Zeeman energy and tunnel barrier potential. The reduction of disorder allows us to resolve separate regions in the parameter space with and without a zero bias peak, indicating topologically distinct phases. These observations are consistent with the Majorana theory in a ballistic system 21 , and exclude the known alternative explanations that invoke disorder12 16 or a nonuniform chemical potential22,23. PMID- 29335566 TI - Tunable confinement of charges and excitations. PMID- 29335567 TI - Metagenomic analysis of microbial communities yields insight into impacts of nanoparticle design. AB - Next-generation DNA sequencing and metagenomic analysis provide powerful tools for the environmentally friendly design of nanoparticles. Herein we demonstrate this approach using a model community of environmental microbes (that is, wastewater-activated sludge) dosed with gold nanoparticles of varying surface coatings and morphologies. Metagenomic analysis was highly sensitive in detecting the microbial community response to gold nanospheres and nanorods with either cetyltrimethylammonium bromide or polyacrylic acid surface coatings. We observed that the gold-nanoparticle morphology imposes a stronger force in shaping the microbial community structure than does the surface coating. Trends were consistent in terms of the compositions of both taxonomic and functional genes, which include antibiotic resistance genes, metal resistance genes and gene transfer elements associated with cell stress that are relevant to public health. Given that nanoparticle morphology remained constant, the potential influence of gold dissolution was minimal. Surface coating governed the nanoparticle partitioning between the bioparticulate and aqueous phases. PMID- 29335568 TI - Strain distributions and their influence on electronic structures of WSe2-MoS2 laterally strained heterojunctions. AB - Monolayer transition metal dichalcogenide heterojunctions, including vertical and lateral p-n junctions, have attracted considerable attention due to their potential applications in electronics and optoelectronics. Lattice-misfit strain in atomically abrupt lateral heterojunctions, such as WSe2-MoS2, offers a new band-engineering strategy for tailoring their electronic properties. However, this approach requires an understanding of the strain distribution and its effect on band alignment. Here, we study a WSe2-MoS2 lateral heterojunction using scanning tunnelling microscopy and image its moire pattern to map the full two dimensional strain tensor with high spatial resolution. Using scanning tunnelling spectroscopy, we measure both the strain and the band alignment of the WSe2-MoS2 lateral heterojunction. We find that the misfit strain induces type II to type I band alignment transformation. Scanning transmission electron microscopy reveals the dislocations at the interface that partially relieve the strain. Finally, we observe a distinctive electronic structure at the interface due to hetero bonding. PMID- 29335570 TI - Machine learning for tracking illegal wildlife trade on social media. PMID- 29335569 TI - Apparent shift in long-range motion trajectory by local pattern orientation. AB - The present study shows that the apparent direction of a moving pattern is systematically affected by its orientation. We found that the perceived direction of motion of a single Gabor grating changing position in discrete steps interleaved by blank inter-stimulus interval (ISI) is biased toward the orientation of the grating. This orientation-induced motion shift peaks for grating orientations ~+/-15 deg away from the physical motion trajectory and was profound for relatively short distances. Orientation adaptation revealed that the directional shift is determined by the apparent -not the physical -orientation of the grating, and a subsequent experiment demonstrated that directional shift is also influenced by the orientation of the contrast-defined stimulus envelope. Results provide further evidence that the apparent trajectory of a motion stimulus is determined by interactions between motion and pattern information at relatively high levels of visual processing. PMID- 29335571 TI - Biodiversity conservation should be a core value of China's Belt and Road Initiative. PMID- 29335572 TI - Variation and constraints in hybrid genome formation. AB - Hybridization is an important source of variation; it transfers adaptive genetic variation across species boundaries and generates new species. Yet, the limits to viable hybrid genome formation are poorly understood. Here we investigated to what extent hybrid genomes are free to evolve by sequencing the genomes of four island populations of the homoploid hybrid Italian sparrow Passer italiae. We report that a variety of novel and fully functional hybrid genomic combinations are likely to have arisen independently on Crete, Corsica, Sicily and Malta, with differentiation in candidate genes for beak shape and plumage colour. However, certain genomic regions are invariably inherited from the same parent species, limiting variation. These regions are over-represented on the Z chromosome and harbour candidate incompatibility loci, including DNA-repair and mitonuclear genes. These gene classes may contribute to the general reduction of introgression on sex chromosomes. This study demonstrates that hybrid genomes may vary, and identifies new candidate reproductive isolation genes. PMID- 29335573 TI - Australia's mammal fauna requires a strategic and enhanced network of predator free havens. PMID- 29335574 TI - Sexual antagonism and the instability of environmental sex determination. AB - The sex of an organism can be determined by its genetics or its early environment. Across the animal kingdom, genetic sex determination (GSD) is far more common than environmental sex determination (ESD). Here, we propose an explanation for this pattern: the coupling of genes that bias offspring sex ratios towards one sex with genes that are beneficial in that sex but costly in the other. Gradual strengthening of the sex-specific tendency of this association eventuates in a neo-sex chromosome; that is, GSD. Our model predicts to which system of heterogamety ESD will evolve when nesting behaviour is an important determinant of brood sex ratios. It explains the puzzling observation in some GSD species of sex reversal induced by extreme environments. The model also suggests an approach to discovering sex-determining genes in ESD species. PMID- 29335576 TI - Ancient balancing selection on heterocyst function in a cosmopolitan cyanobacterium. AB - The conventional view of bacterial adaptation emphasizes the importance of rapidly evolved changes that are highly repeatable in response to similar environments and subject to loss in the absence of selection. Consequently, genetic variation is not expected to persist over long time scales for these organisms. Here, we show that a geographically widespread gene content polymorphism has surprisingly been maintained for tens of millions of years of diversification of the multicellular cyanobacterium Fischerella thermalis. The polymorphism affects gas permeability of the heterocyst-the oxygen-sensitive, nitrogen-fixing cell produced by these bacteria-and spatial variation in temperature favours alternative alleles due to thermodynamic effects on both heterocyst function and organism fitness at physiological temperature extremes. Whether or not ancient balancing selection plays a generally important role in the maintenance of microbial diversity remains to be investigated. PMID- 29335575 TI - Genotypic variability enhances the reproducibility of an ecological study. AB - Many scientific disciplines are currently experiencing a 'reproducibility crisis' because numerous scientific findings cannot be repeated consistently. A novel but controversial hypothesis postulates that stringent levels of environmental and biotic standardization in experimental studies reduce reproducibility by amplifying the impacts of laboratory-specific environmental factors not accounted for in study designs. A corollary to this hypothesis is that a deliberate introduction of controlled systematic variability (CSV) in experimental designs may lead to increased reproducibility. To test this hypothesis, we had 14 European laboratories run a simple microcosm experiment using grass (Brachypodium distachyon L.) monocultures and grass and legume (Medicago truncatula Gaertn.) mixtures. Each laboratory introduced environmental and genotypic CSV within and among replicated microcosms established in either growth chambers (with stringent control of environmental conditions) or glasshouses (with more variable environmental conditions). The introduction of genotypic CSV led to 18% lower among-laboratory variability in growth chambers, indicating increased reproducibility, but had no significant effect in glasshouses where reproducibility was generally lower. Environmental CSV had little effect on reproducibility. Although there are multiple causes for the 'reproducibility crisis', deliberately including genetic variability may be a simple solution for increasing the reproducibility of ecological studies performed under stringently controlled environmental conditions. PMID- 29335577 TI - Salmonella enterica genomes from victims of a major sixteenth-century epidemic in Mexico. AB - Indigenous populations of the Americas experienced high mortality rates during the early contact period as a result of infectious diseases, many of which were introduced by Europeans. Most of the pathogenic agents that caused these outbreaks remain unknown. Through the introduction of a new metagenomic analysis tool called MALT, applied here to search for traces of ancient pathogen DNA, we were able to identify Salmonella enterica in individuals buried in an early contact era epidemic cemetery at Teposcolula-Yucundaa, Oaxaca in southern Mexico. This cemetery is linked, based on historical and archaeological evidence, to the 1545-1550 CE epidemic that affected large parts of Mexico. Locally, this epidemic was known as 'cocoliztli', the pathogenic cause of which has been debated for more than a century. Here, we present genome-wide data from ten individuals for Salmonella enterica subsp. enterica serovar Paratyphi C, a bacterial cause of enteric fever. We propose that S. Paratyphi C be considered a strong candidate for the epidemic population decline during the 1545 cocoliztli outbreak at Teposcolula-Yucundaa. PMID- 29335578 TI - Author Correction: The rise and fall of the Old World savannah fauna and the origins of the African savannah biome. AB - In the version of this Article originally published, each of the five panels in Fig. 5 incorrectly contained a black diagonal line across the plot. This has now been corrected. PMID- 29335579 TI - The effects of Antibody Engineering CH and CL in Trastuzumab and Pertuzumab recombinant models: Impact on antibody production and antigen-binding. AB - Current therapeutic antibodies such as Trastuzumab, are typically of the blood circulatory IgG1 class (Ckappa/ CHgamma1). Due to the binding to Her2 also present on normal cell surfaces, side effects such as cardiac failure can sometimes be associated with such targeted therapy. Using antibody isotype swapping, it may be possible to reduce systemic circulation through increased tissue localization, thereby minimising unwanted side effects. However, the effects of such modifications have yet to be fully characterized, particularly with regards to their biophysical properties in antigen binding. To do this, we produced all light and heavy chain human isotypes/subtypes recombinant versions of Trastuzumab and Pertuzumab, and studied them with respect to recombinant production and Her2 binding. Our findings show that while the light chain constant region changes have no major effects on production or Her2 binding, some heavy chain isotypes, in particularly, IgM and IgD isotypes, can modulate antigen binding. This study thus provides the groundwork for such isotype modifications to be performed in the future to yield therapeutics of higher efficacy and efficiency. PMID- 29335580 TI - Widespread bone-based fluorescence in chameleons. AB - Fluorescence is widespread in marine organisms but uncommon in terrestrial tetrapods. We here show that many chameleon species have bony tubercles protruding from the skull that are visible through their scales, and fluoresce under UV light. Tubercles arising from bones of the skull displace all dermal layers other than a thin, transparent layer of epidermis, creating a 'window' onto the bone. In the genus Calumma, the number of these tubercles is sexually dimorphic in most species, suggesting a signalling role, and also strongly reflects species groups, indicating systematic value of these features. Co-option of the known fluorescent properties of bone has never before been shown, yet it is widespread in the chameleons of Madagascar and some African chameleon genera, particularly in those genera living in forested, humid habitats known to have a higher relative component of ambient UV light. The fluorescence emits with a maximum at around 430 nm in blue colour which contrasts well to the green and brown background reflectance of forest habitats. This discovery opens new avenues in the study of signalling among chameleons and sexual selection factors driving ornamentation. PMID- 29335581 TI - Role of hypoxia in Diffuse Large B-cell Lymphoma: Metabolic repression and selective translation of HK2 facilitates development of DLBCL. AB - Published molecular profiling studies in patients with lymphoma suggested the influence of hypoxia inducible factor-1 alpha (HIF1alpha) targets in prognosis of DLBCL. Yet, the role of hypoxia in hematological malignancies remains unclear. We observed that activation of HIF1alpha resulted in global translation repression during hypoxic stress in DLBCL. Protein translation efficiency as measured using 35S-labeled methionine incorporation revealed a >=50% reduction in translation upon activation of HIF1alpha. Importantly, translation was not completely inhibited and expression of clinically correlated hypoxia targets such as GLUT1, HK2, and CYT-C was found to be refractory to translational repression under hypoxia in DLBCL cells. Notably, hypoxic induction of these genes was not observed in normal primary B-cells. Translational repression was coupled with a decrease in mitochondrial function. Screening of primary DLBCL patient samples revealed that expression of HK2, which encodes for the enzyme hexokinase 2, was significantly correlated with DLBCL phenotype. Genetic knockdown studies demonstrated that HK2 is required for promoting growth of DLBCL under hypoxic stress. Altogether, our findings provide strong support for the direct contribution of HK2 in B-cell lymphoma development and suggest that HK2 is a key metabolic driver of the DLBCL phenotype. PMID- 29335582 TI - Differential roles of NaV1.2 and NaV1.6 in regulating neuronal excitability at febrile temperature and distinct contributions to febrile seizures. AB - Dysregulation of voltage-gated sodium channels (VGSCs) is associated with multiple clinical disorders, including febrile seizures (FS). The contribution of different sodium channel subtypes to environmentally triggered seizures is not well understood. Here we demonstrate that somatic and axonal sodium channels primarily mediated through NaV1.2 and NaV1.6 subtypes, respectively, behave differentially at FT, and might play distinct roles in FS generation. In contrast to sodium channels on the main axonal trunk, somatic ones are more resistant to inactivation and display significantly augmented currents, faster gating rates and kinetics of recovery from inactivation at FT, features that promote neuronal excitabilities. Pharmacological inhibition of NaV1.2 by Phrixotoxin-3 (PTx3) suppressed FT-induced neuronal hyperexcitability in brain slice, while up regulation of NaV1.2 as in NaV1.6 knockout mice showed an opposite effect. Consistently, NaV1.6 knockout mice were more susceptible to FS, exhibiting much lower temperature threshold and shorter onset latency than wildtype mice. Neuron modeling further suggests that NaV1.2 is the major subtype mediating FT-induced neuronal hyperexcitability, and predicts potential outcomes of alterations in sodium channel subtype composition. Together, these data reveal a role of native NaV1.2 on neuronal excitability at FT and its important contribution to FS pathogenesis. PMID- 29335583 TI - The effect of differentiation and TGFbeta on mitochondrial respiration and mitochondrial enzyme abundance in cultured primary human skeletal muscle cells. AB - Measuring mitochondrial respiration in cultured cells is a valuable tool to investigate the influence of physiological and disease-related factors on cellular metabolism; however, the details of the experimental workflow greatly influence the informative value of the results. Working with primary cells and cell types capable of differentiation can be particularly challenging. We present a streamlined workflow optimised for investigation of primary human skeletal muscle cells. We applied the workflow to differentiated and undifferentiated cells and we investigated the effect of TGFbeta1 treatment. Differentiation of myoblasts to myotubes increased mitochondrial respiration and abundance of mitochondrial enzymes and mitochondrial marker proteins. Differentiation also induced qualitative changes in mitochondrial protein composition and respiration. TGFbeta1 reduced complex IV protein MTCO1 abundance in both myoblasts and myotubes. In myoblasts, spare electron transport system (ETS) capacity was reduced due to a reduction in maximal oxygen consumption. In TGFbeta1-treated myotubes, the reduction in spare ETS capacity is mainly a consequence of increased oxidative phosphorylation capacity and complex III protein UQCRC2. Taken together, our data shows that it is important to monitor muscle cell differentiation when mitochondrial function is studied. Our workflow is not only sensitive enough to detect physiological-sized differences, but also adequate to form mechanistic hypotheses. PMID- 29335584 TI - Genome-wide identification and characterization of SPL transcription factor family and their evolution and expression profiling analysis in cotton. AB - Plant specific transcription factors, SQUAMOSA promoter-binding protein-like (SPL), are involved in many biological processes. However, no systematical study has been reported in cotton. In this study, a total of 177 SPL genes were identified, including 29, 30, 59 and 59 SPLs in Gossypium arboreum, G. raimondii, G. barbadense, and G. hirsutum, respectively. These SPL genes were classified into eight phylogenetical groups. The gene structure, conserved motif, and clustering were highly conserved within each orthologs. Two zinc finger-like structures (Cys3His and Cys2HisCys) and NLS segments were existed in all GrSPLs. Segmental duplications play important roles in SPL family expansion, with 20 genes involved in segmental duplications and 2 in tandem duplications, and ten ortholog pairs in syntenic regions between G. raimondii and A. thaliana. Several putative cis-elements, involved in light, stresses and phytohormones response, were found in the promoter regions of GhSPLs, suggesting that plant responses to those environmental changes may be induced through targeting SPL transcription factors. RNA-seq analysis shows that SPL genes were differentially expressed in cotton; some were highly expressed during fiber initiation and early development. Comparing with other plants, SPL genes show subfunctionalization, lost and/or gain functions in cotton during long-term domestication and evolution. PMID- 29335586 TI - Publisher Correction: Pelagic barite precipitation at micromolar ambient sulfate. AB - The original version of this Article contained an error in the barite saturation state equation in the fourth paragraph of the Introduction and incorrectly read 'Omegabarite=({134Ba2+}?{SO42-})/Ksp)'. The correct version removes the superscript 134 next to 'Ba2+'. This error has now been corrected in both the PDF and HTML versions of the Article. PMID- 29335585 TI - Robust fabrication of thin film polyamide-TiO2 nanocomposite membranes with enhanced thermal stability and anti-biofouling propensity. AB - The development of nano-enabled composite materials has led to a paradigm shift in the manufacture of high-performance nanocomposite membranes with enhanced permeation, thermo-mechanical, and antibacterial properties. The major challenges to the successful incorporation of nanoparticles (NPs) to polymer films are the severe aggregation of the NPs and the weak compatibility of NPs with polymers. These two phenomena lead to the formation of non-selective voids at the interface of the polymer and NPs, which adversely affect the separation performance of the membrane. To overcome these challenges, we have developed a new method for the fabrication of robust TFN reverse osmosis membranes. This approach relies on the simultaneous synthesis and surface functionalization of TiO2 NPs in an organic solvent (heptane) via biphasic solvothermal reaction. The resulting stable suspension of the TiO2 NPs in heptane was then utilized in the interfacial (in situ) polymerization reaction where the NPs were entrapped within the matrix of the polyamide (PA) membrane. TiO2 NPs of 10 nm were effectively incorporated into the thin PA layer and improved the thermal stability and anti-biofouling properties of the resulting TFN membranes. These features make our synthesized membranes potential candidates for applications where the treatment of high temperature streams containing biomaterials is desirable. PMID- 29335587 TI - Bacterial and Fungal Community Composition and Functional Activity Associated with Lake Wetland Water Level Gradients. AB - The water regime is often the primary force driving the evolution of freshwater lakes, but how soil microbes responded to this process is far from understood. This study sampled wetland soils from a shallow lake that experienced water regime changes, Poyang Lake of China, to explore the features of bacterial and fungal community in response to water level changes. The soil physicochemical properties, T-RFLP based community structures and soil activities (including basal respiration, microbial biomass and enzymes) were all determined. Soil microbial eco-function was captured by testing the carbon metabolism with Biolog Ecoplate. The results showed remarkable influence of the water level gradients on the soil physicochemical properties, microbial community structures and soil activities. However, the carbon utilization profile exhibited weak connections with the environmental variables and microbial community structures (p > 0.05). The microbial activities were significantly correlated with both bacterial and fungal community structures. Our results also emphasized the ascendant role of the deterministic process in the assemblages of microbial community structures and functions in wetland. In conclusion, this study revealed the discrepancy between community structures and eco-functions in response to water level gradients, and a relatively stable eco-function helped to maintain the ecosystem function of wetland from a long-term perspective. PMID- 29335589 TI - Strong modulation of second-harmonic generation with very large contrast in semiconducting CdS via high-field domain. AB - Dynamic control of nonlinear signals is critical for a wide variety of optoelectronic applications, such as signal processing for optical computing. However, controlling nonlinear optical signals with large modulation strengths and near-perfect contrast remains a challenging problem due to intrinsic second order nonlinear coefficients via bulk or surface contributions. Here, via electrical control, we turn on and tune second-order nonlinear coefficients in semiconducting CdS nanobelts from zero to up to 151 pm V-1, a value higher than other intrinsic nonlinear coefficients in CdS. We also observe ultrahigh ON/OFF ratio of >104 and modulation strengths ~200% V-1 of the nonlinear signal. The unusual nonlinear behavior, including super-quadratic voltage and power dependence, is ascribed to the high-field domain, which can be further controlled by near-infrared optical excitation and electrical gating. The ability to electrically control nonlinear optical signals in nanostructures can enable optoelectronic devices such as optical transistors and modulators for on-chip integrated photonics. PMID- 29335588 TI - Peripheral iron levels in children with attention-deficit hyperactivity disorder: a systematic review and meta-analysis. AB - There is growing recognition that the risk of attention-deficit hyperactivity disorder (ADHD) in children may be influenced by micronutrient deficiencies, including iron. We conducted this meta-analysis to examine the association between ADHD and iron levels/iron deficiency (ID). We searched for the databases of the PubMed, ScienceDirect, Cochrane CENTRAL, and ClinicalTrials.gov up to August 9th, 2017. Primary outcomes were differences in peripheral iron levels in children with ADHD versus healthy controls (HCs) and the severity of ADHD symptoms in children with/without ID (Hedges' g) and the pooled adjusted odds ratio (OR) of the association between ADHD and ID. Overall, seventeen articles met the inclusion criteria. Peripheral serum ferritin levels were significantly lower in ADHD children (children with ADHD = 1560, HCs = 4691, Hedges' g = 0.246, p = 0.013), but no significant difference in serum iron or transferrin levels. In addition, the severity of ADHD was significantly higher in the children with ID than those without ID (with ID = 79, without ID = 76, Hedges' g = 0.888, p = 0.002), and there was a significant association between ADHD and ID (OR = 1.636, p = 0.031). Our results suggest that ADHD is associated with lower serum ferritin levels and ID. Future longitudinal studies are required to confirm these associations and to elucidate potential mechanisms. PMID- 29335590 TI - Direct observation of the effects of cellulose synthesis inhibitors using live cell imaging of Cellulose Synthase (CESA) in Physcomitrella patens. AB - Results from live cell imaging of fluorescently tagged Cellulose Synthase (CESA) proteins in Cellulose Synthesis Complexes (CSCs) have enhanced our understanding of cellulose biosynthesis, including the mechanisms of action of cellulose synthesis inhibitors. However, this method has been applied only in Arabidopsis thaliana and Brachypodium distachyon thus far. Results from freeze fracture electron microscopy of protonemal filaments of the moss Funaria hygrometrica indicate that a cellulose synthesis inhibitor, 2,6-dichlorobenzonitrile (DCB), fragments CSCs and clears them from the plasma membrane. This differs from Arabidopsis, in which DCB causes CSC accumulation in the plasma membrane and a different cellulose synthesis inhibitor, isoxaben, clears CSCs from the plasma membrane. In this study, live cell imaging of the moss Physcomitrella patens indicated that DCB and isoxaben have little effect on protonemal growth rates, and that only DCB causes tip rupture. Live cell imaging of mEGFP-PpCESA5 and mEGFP-PpCESA8 showed that DCB and isoxaben substantially reduced CSC movement, but had no measureable effect on CSC density in the plasma membrane. These results suggest that DCB and isoxaben have similar effects on CSC movement in P. patens and Arabidopsis, but have different effects on CSC intracellular trafficking, cell growth and cell integrity in these divergent plant lineages. PMID- 29335591 TI - Functionalized Sugarcane Bagasse for U(VI) Adsorption from Acid and Alkaline Conditions. AB - The highly efficient removal of uranium from mine tailings effluent, radioactive wastewater and enrichment from seawater is of great significance for the development of nuclear industry. In this work, we prepared an efficient U(VI) adsorbent by EDTA modified sugarcane bagasse (MESB) with a simple process. The prepared adsorbent preserves high adsorptive capacity for UO22+ (pH 3.0) and uranyl complexes, such as UO2(OH)+, (UO2)2(OH)22+ and (UO2)3(OH)5+ (pH 4.0 and pH 5.0) and good repeatability in acidic environment. The maximum adsorption capacity for U(VI) at pH 3.0, 4.0 and 5.0 is 578.0, 925.9 and 1394.1 mg/g and the adsorption capacity loss is only 7% after five cycles. With the pH from 3.0 to 5.0, the inhibitive effects of Na+ and K+ decreased but increased of Mg2+ and Ca2+. MESB also exhibits good adsorption for [UO2(CO3)3]4- at pH 8.3 from 10 mg/L to 3.3 MUg/L. Moreover, MESB could effectively extract U(VI) from simulated seawater in the presence of other metals ions. This work provided a general and efficient uranyl enriched material for nuclear industry. PMID- 29335592 TI - Differential tolerance to nickel between Dreissena polymorpha and Dreissena rostriformis bugensis populations. AB - Differential tolerance to stress is partly responsible for the heterogeneity of biomarker responses between populations of a sentinel species. Although currently used for freshwater biomonitoring, studies concerning inter-populational variability in tolerance to contaminants for the zebra mussel (Dreissena polymorpha) are scarce. Moreover, this well-known invader is currently replaced by another, the quagga mussel (Dreissena rostriformis bugensis). To evaluate the differential tolerance between dreissenids, several populations of both species were exposed to a high concentration of nickel. A LT50 (time when 50% of individuals were dead) was established for each population. Biomarker responses and internal nickel concentration were also measured, to link tolerance with physiological status. Results evidenced that D. polymorpha populations are more heterogeneous and more tolerant than D. r. bugensis ones. For D. polymorpha populations only, LT50 values were positively correlated with the nickel contamination in situ, with higher anti-oxidative defences and a higher Integrated Biomarker Response value in the field. Such findings may be explained by local adaptation and invasion dynamic within each species. The significance of this differential tolerance when using biomarker responses for biomonitoring purposes is thus discussed. PMID- 29335593 TI - Bacterial iron reduction and biogenic mineral formation for the stabilisation of corroded iron objects. AB - Exploiting bacterial metabolism for the stabilisation of corroded iron artefacts is a promising alternative to conventional conservation-restoration methods. Bacterial iron reduction coupled to biogenic mineral formation has been shown to promote the conversion of reactive into stable corrosion products that are integrated into the natural corrosion layer of the object. However, in order to stabilise iron corrosion, the formation of specific biogenic minerals is essential. In this study, we used the facultative anaerobe Shewanella loihica for the production of stable biogenic iron minerals under controlled chemical conditions. The biogenic formation of crystalline iron phosphates was observed after iron reduction in a solution containing Fe(III) citrate. When the same biological treatment was applied on corroded iron plates, a layer composed of iron phosphates and iron carbonates was formed. Surface and cross-section analyses demonstrated that these two stable corrosion products replaced 81% of the reactive corrosion layer after two weeks of treatment. Such results demonstrate the potential of a biological treatment in the development of a stabilisation method to preserve corroded iron objects. PMID- 29335594 TI - Interfacial Coupling Effect on Electron Transport in MoS2/SrTiO3 Heterostructure: An Ab-initio Study. AB - A variety of theoretical and experimental works have reported several potential applications of MoS2 monolayer based heterostructures (HSs) such as light emitting diodes, photodetectors and field effect transistors etc. In the present work, we have theoretically performed as a model case study, MoS2 monolayer deposited over insulating SrTiO3 (001) to study the band alignment at TiO2 termination. The interfacial characteristics are found to be highly dependent on the interface termination. With an insulating oxide material, a significant band gap (0.85eV) is found in MoS2/TiO2 interface heterostructure (HS). A unique electronic band profile with an indirect band gap (0.67eV) is observed in MoS2 monolayer when confined in a cubic environment of SrTiO3 (STO). Adsorption analysis showed the chemisorption of MoS2 on the surface of STO substrate with TiO2 termination which is justified by the charge density calculations that shows the existence of covalent bonding at the interface. The fabrication of HS of such materials paves the path for developing the unprecedented 2D materials with exciting properties such as semiconducting devices, thermoelectric and optoelectronic applications. PMID- 29335595 TI - Mapping the epidemic changes and risks of hemorrhagic fever with renal syndrome in Shaanxi Province, China, 2005-2016. AB - Hemorrhagic fever with renal syndrome (HFRS) is a major rodent-borne zoonosis. Each year worldwide, 60,000-100,000 HFRS human cases are reported in more than seventy countries with almost 90% these cases occurring in China. Shaanxi Province in China has been among the most seriously affected areas since 1955. During 2009-2013, Shaanxi reported 11,400 human cases, the most of all provinces in China. Furthermore, the epidemiological features of HFRS have changed over time. Using long-term data of HFRS from 2005 to 2016, we carried out this retrospective epidemiological study combining ecological assessment models in Shaanxi. We found the majority of HFRS cases were male farmers who acquired infection in Guanzhong Plain, but the geographic extent of the epidemic has slowly spread northward. The highest age-specific attack rate since 2011 was among people aged 60-74 years, and the percentage of HFRS cases among the elderly increased from 12% in 2005 to 25% in 2016. We highly recommend expanding HFRS vaccination to people older than 60 years to better protect against the disease. Multivariate analysis revealed artificial area, cropland, pig and population density, GDP, and climate conditions (relative humidity, precipitation, and wind speed) as significant risk factors in the distribution of HFRS. PMID- 29335596 TI - Circulating microRNA signature for the diagnosis of childhood dilated cardiomyopathy. AB - Circulating miRNAs are proposed as a biomarker of heart disease. This study evaluated whether circulating miRNAs could be used as a biomarker for childhood dilated cardiomyopathy (CDCM). A total of 28 participants were enrolled in a discovery set, including patients with CDCM (n = 16) and healthy children (n = 12). The cardiac function of patients with CDCM was characterized by echocardiography and serum miRNA profiles of all participants were assessed by miRNA sequencing. After miRNA profiling, we quantitatively confirmed 148 regulated miRNAs in patients with CDCM compared with healthy subjects, and none were downregulated. Validation of candidate miRNAs was assessed by quantitative real-time polymerase chain reaction in other patients with CDCM (n = 30) and healthy controls (n = 16). A unique signature comprising mir-142-5p, mir-143-3p, mir-27b-3p, and mir-126-3p differentiated patients with CDCM from healthy subjects. Importantly, we observed an increase in mir-126-3p or let-7g in parallel with a robust decrease in the ejection fraction in patients with CDCM, which could differentiate heart failure patients from non-heart failure patients with CDCM. Moreover, mir-126-3p and let-7g were significantly negatively associated with the left ventricular ejection fraction. This study shows that a signature of four serum miRNAs may be a potential biomarker for diagnosing CDCM and assessing heart failure. PMID- 29335597 TI - Exercise Protects Against Olanzapine-Induced Hyperglycemia in Male C57BL/6J Mice. AB - Olanzapine is a widely prescribed antipsychotic drug. While effective in reducing psychoses, treatment with olanzapine causes rapid increases in blood glucose. We wanted to determine if a single bout of exercise, immediately prior to treatment, would attenuate the olanzapine-induced rise in blood glucose and if this occurred in an IL-6 dependent manner. We found that exhaustive, but not moderate exercise, immediately prior to treatment, prevented olanzapine-induced hyperglycemia and this occurred in parallel with increases in serum IL-6. To determine if IL-6 was involved in the mechanisms through which exhaustive exercise protected against olanzapine-induced hyperglycemia several additional experiments were completed. Treatment with IL-6 (3 ng/g bw, IP) alone did not protect against olanzapine induced increases in blood glucose. The protective effects of exhaustive exercise against olanzapine-induced increases in blood glucose were intact in whole body IL-6 knockout mice. Similarly, treating mice with an IL-6 neutralizing antibody prior to exhaustive exercise did not negate the protective effect of exercise against olanzapine-induced hyperglycemia. Our findings provide evidence that a single bout of exhaustive exercise protects against acute olanzapine-induced hyperglycemia and that IL-6 is neither sufficient, nor required for exercise to protect against increases in blood glucose with olanzapine treatment. PMID- 29335598 TI - Gene and MicroRNA Perturbations of Cellular Response to Pemetrexed Implicate Biological Networks and Enable Imputation of Response in Lung Adenocarcinoma. AB - Pemetrexed is indicated for non-small cell lung carcinoma and mesothelioma, but often has limited efficacy due to drug resistance. To probe the molecular mechanisms underlying chemotherapeutic response, we performed mRNA and microRNA (miRNA) expression profiling of pemetrexed treated and untreated lymphoblastoid cell lines (LCLs) and applied a hierarchical Bayesian method. We identified genetic variation associated with gene expression in human lung tissue for the most significant differentially expressed genes (Benjamini-Hochberg [BH] adjusted p < 0.05) using the Genotype-Tissue Expression data and found evidence for their clinical relevance using integrated molecular profiling and lung adenocarcinoma survival data from The Cancer Genome Atlas project. We identified 39 miRNAs with significant differential expression (BH adjusted p < 0.05) in LCLs. We developed a gene expression based imputation model of drug sensitivity, quantified its prediction performance, and found a significant correlation of the imputed phenotype generated from expression data with survival time in lung adenocarcinoma patients. Differentially expressed genes (MTHFD2 and SUFU) that are putative targets of differentially expressed miRNAs also showed differential perturbation in A549 fusion lung tumor cells with further replication in A549 cells. Our study suggests pemetrexed may be used in combination with agents that target miRNAs to increase its cytotoxicity. PMID- 29335599 TI - Hindlimb Ischemia Impairs Endothelial Recovery and Increases Neointimal Proliferation in the Carotid Artery. AB - Peripheral ischemia is associated with higher degree of endothelial dysfunction and a worse prognosis after percutaneous coronary interventions (PCI). However, the role of peripheral ischemia on vascular remodeling in remote districts remains poorly understood. Here we show that the presence of hindlimb ischemia significantly enhances neointima formation and impairs endothelial recovery in balloon-injured carotid arteries. Endothelial-derived microRNAs are involved in the modulation of these processes. Indeed, endothelial miR-16 is remarkably upregulated after vascular injury in the presences of hindlimb ischemia and exerts a negative effect on endothelial repair through the inhibition of RhoGDIalpha and nitric oxide (NO) production. We showed that the repression of RhoGDIalpha by means of miR-16 induces RhoA, with consequent reduction of NO bioavailability. Thus, hindlimb ischemia affects negative carotid remodeling increasing neointima formation after injury, while systemic antagonizzation of miR-16 is able to prevent these negative effects. PMID- 29335600 TI - Alteration in Fluidity of Cell Plasma Membrane in Huntington Disease Revealed by Spectral Phasor Analysis. AB - Huntington disease (HD) is a late-onset genetic neurodegenerative disorder caused by expansion of cytosine-adenine-guanine (CAG) trinucleotide in the exon 1 of the gene encoding the polyglutamine (polyQ). It has been shown that protein degradation and lipid metabolism is altered in HD. In many neurodegenerative disorders, impaired lipid homeostasis is one of the early events in the disease onset. Yet, little is known about how mutant huntingtin may affect phospholipids membrane fluidity. Here, we investigated how membrane fluidity in the living cells (differentiated PC12 and HEK293 cell lines) are affected using a hyperspectral imaging of widely used probes, LAURDAN. Using phasor approach, we characterized the fluorescence of LAURDAN that is sensitive to the polarity of the immediate environment. LAURDAN is affected by the physical order of phospholipids (lipid order) and reports the membrane fluidity. We also validated our results using a different fluorescent membrane probe, Nile Red (NR). The plasma membrane in the cells expressing expanded polyQ shows a shift toward increased membrane fluidity revealed by both LAURDAN and NR spectral phasors. This finding brings a new perspective in the understanding of the early stages of HD that can be used as a target for drug screening. PMID- 29335602 TI - In situ single-shot diffractive fluence mapping for X-ray free-electron laser pulses. AB - Free-electron lasers (FELs) in the extreme ultraviolet (XUV) and X-ray regime opened up the possibility for experiments at high power densities, in particular allowing for fluence-dependent absorption and scattering experiments to reveal non-linear light-matter interactions at ever shorter wavelengths. Findings of such non-linear effects are met with tremendous interest, but prove difficult to understand and model due to the inherent shot-to-shot fluctuations in photon intensity and the often structured, non-Gaussian spatial intensity profile of a focused FEL beam. Presently, the focused beam is characterized and optimized separately from the actual experiment. Here, we present the simultaneous measurement of XUV diffraction signals from solid samples in tandem with the corresponding single-shot spatial fluence distribution on the actual sample. Our in situ characterization scheme enables direct monitoring of the sample illumination, providing a basis to optimize and quantitatively understand FEL experiments. PMID- 29335601 TI - Loss of CD14 leads to disturbed epithelial-B cell crosstalk and impairment of the intestinal barrier after E. coli Nissle monoassociation. AB - The TLR4 co-receptor CD14 was identified as an IBD candidate gene. Here, its influence on the intestinal barrier was addressed utilizing E. coli Nissle (EcN), which induces severe inflammation in germfree TLR4-/- mice. After monoassociation, EcN was detected in spleens and livers of TLR4-/- and CD14-/- but not wildtype mice. Barrier impairment was characterized by increased apoptosis and decreased epithelial junction (EJ) expression and was reversed by TLR2 stimulation in CD14-/- mice. Bone marrow (BM) transplantation revealed contribution of hematopoietic and non-hematopoietic cells towards intestinal homeostasis. EcN inoculated WT mice showed B cell activation, CD14-/- and TLR4-/- mice cytotoxic T cell and impaired B cell responses. The latter was characterized by absence of B cells in TLR4-/- mice, decreased levels of EcN induced immunoglobulins and downregulation of their transporter pIgR. EcN colonization of mice with genetically or antibody induced impaired B cell response resulted in dissemination of EcN and downregulation of EJ. BM chimeras indicated that CD14 originating from radiation resistant cells is sufficient to restore EJ-function. Overall, CD14/TLR4 signalling seems to be critical for intestinal barrier function and for the crosstalk between B cells and the epithelium, underlining that CD14 serves as a protective modulator of intestinal homeostasis. PMID- 29335603 TI - In vivo simultaneous transcriptional activation of multiple genes in the brain using CRISPR-dCas9-activator transgenic mice. AB - Despite rapid progresses in the genome-editing field, in vivo simultaneous overexpression of multiple genes remains challenging. We generated a transgenic mouse using an improved dCas9 system that enables simultaneous and precise in vivo transcriptional activation of multiple genes and long noncoding RNAs in the nervous system. As proof of concept, we were able to use targeted activation of endogenous neurogenic genes in these transgenic mice to directly and efficiently convert astrocytes into functional neurons in vivo. This system provides a flexible and rapid screening platform for studying complex gene networks and gain of-function phenotypes in the mammalian brain. PMID- 29335604 TI - Dentate network activity is necessary for spatial working memory by supporting CA3 sharp-wave ripple generation and prospective firing of CA3 neurons. AB - Complex spatial working memory tasks have been shown to require both hippocampal sharp-wave ripple (SWR) activity and dentate gyrus (DG) neuronal activity. We therefore asked whether DG inputs to CA3 contribute to spatial working memory by promoting SWR generation. Recordings from DG and CA3 while rats performed a dentate-dependent working memory task on an eight-arm radial maze revealed that the activity of dentate neurons and the incidence rate of SWRs both increased during reward consumption. We then found reduced reward-related CA3 SWR generation without direct input from dentate granule neurons. Furthermore, CA3 cells with place fields in not-yet-visited arms preferentially fired during SWRs at reward locations, and these prospective CA3 firing patterns were more pronounced for correct trials and were dentate-dependent. These results indicate that coordination of CA3 neuronal activity patterns by DG is necessary for the generation of neuronal firing patterns that support goal-directed behavior and memory. PMID- 29335606 TI - Conserved properties of dentate gyrus neurogenesis across postnatal development revealed by single-cell RNA sequencing. AB - The dentate gyrus of the hippocampus is a brain region in which neurogenesis persists into adulthood; however, the relationship between developmental and adult dentate gyrus neurogenesis has not been examined in detail. Here we used single-cell RNA sequencing to reveal the molecular dynamics and diversity of dentate gyrus cell types in perinatal, juvenile, and adult mice. We found distinct quiescent and proliferating progenitor cell types, linked by transient intermediate states to neuroblast stages and fully mature granule cells. We observed shifts in the molecular identity of quiescent and proliferating radial glia and granule cells during the postnatal period that were then maintained through adult stages. In contrast, intermediate progenitor cells, neuroblasts, and immature granule cells were nearly indistinguishable at all ages. These findings demonstrate the fundamental similarity of postnatal and adult neurogenesis in the hippocampus and pinpoint the early postnatal transformation of radial glia from embryonic progenitors to adult quiescent stem cells. PMID- 29335605 TI - Dietary salt promotes neurovascular and cognitive dysfunction through a gut initiated TH17 response. AB - A diet rich in salt is linked to an increased risk of cerebrovascular diseases and dementia, but it remains unclear how dietary salt harms the brain. We report that, in mice, excess dietary salt suppresses resting cerebral blood flow and endothelial function, leading to cognitive impairment. The effect depends on expansion of TH17 cells in the small intestine, resulting in a marked increase in plasma interleukin-17 (IL-17). Circulating IL-17, in turn, promotes endothelial dysfunction and cognitive impairment by the Rho kinase-dependent inhibitory phosphorylation of endothelial nitric oxide synthase and reduced nitric oxide production in cerebral endothelial cells. The findings reveal a new gut-brain axis linking dietary habits to cognitive impairment through a gut-initiated adaptive immune response compromising brain function via circulating IL-17. Thus, the TH17 cell-IL-17 pathway is a putative target to counter the deleterious brain effects induced by dietary salt and other diseases associated with TH17 polarization. PMID- 29335607 TI - Grid scale drives the scale and long-term stability of place maps. AB - Medial entorhinal cortex (MEC) grid cells fire at regular spatial intervals and project to the hippocampus, where place cells are active in spatially restricted locations. One feature of the grid population is the increase in grid spatial scale along the dorsal-ventral MEC axis. However, the difficulty in perturbing grid scale without impacting the properties of other functionally defined MEC cell types has obscured how grid scale influences hippocampal coding and spatial memory. Here we use a targeted viral approach to knock out HCN1 channels selectively in MEC, causing the grid scale to expand while leaving other MEC spatial and velocity signals intact. Grid scale expansion resulted in place scale expansion in fields located far from environmental boundaries, reduced long-term place field stability and impaired spatial learning. These observations, combined with simulations of a grid-to-place cell model and position decoding of place cells, illuminate how grid scale impacts place coding and spatial memory. PMID- 29335608 TI - N6-methyladenosine RNA modification regulates embryonic neural stem cell self renewal through histone modifications. AB - Internal N6-methyladenosine (m6A) modification is widespread in messenger RNAs (mRNAs) and is catalyzed by heterodimers of methyltransferase-like protein 3 (Mettl3) and Mettl14. To understand the role of m6A in development, we deleted Mettl14 in embryonic neural stem cells (NSCs) in a mouse model. Phenotypically, NSCs lacking Mettl14 displayed markedly decreased proliferation and premature differentiation, suggesting that m6A modification enhances NSC self-renewal. Decreases in the NSC pool led to a decreased number of late-born neurons during cortical neurogenesis. Mechanistically, we discovered a genome-wide increase in specific histone modifications in Mettl14 knockout versus control NSCs. These changes correlated with altered gene expression and observed cellular phenotypes, suggesting functional significance of altered histone modifications in knockout cells. Finally, we found that m6A regulates histone modification in part by destabilizing transcripts that encode histone-modifying enzymes. Our results suggest an essential role for m6A in development and reveal m6A-regulated histone modifications as a previously unknown mechanism of gene regulation in mammalian cells. PMID- 29335610 TI - Liquid-like thermal conduction in intercalated layered crystalline solids. AB - As a generic property, all substances transfer heat through microscopic collisions of constituent particles 1 . A solid conducts heat through both transverse and longitudinal acoustic phonons, but a liquid employs only longitudinal vibrations2,3. As a result, a solid is usually thermally more conductive than a liquid. In canonical viewpoints, such a difference also serves as the dynamic signature distinguishing a solid from a liquid. Here, we report liquid-like thermal conduction observed in the crystalline AgCrSe2. The transverse acoustic phonons are completely suppressed by the ultrafast dynamic disorder while the longitudinal acoustic phonons are strongly scattered but survive, and are thus responsible for the intrinsically ultralow thermal conductivity. This scenario is applicable to a wide variety of layered compounds with heavy intercalants in the van der Waals gaps, manifesting a broad implication on suppressing thermal conduction. These microscopic insights might reshape the fundamental understanding on thermal transport properties of matter and open up a general opportunity to optimize performances of thermoelectrics. PMID- 29335611 TI - Designing perturbative metamaterials from discrete models. AB - Identifying material geometries that lead to metamaterials with desired functionalities presents a challenge for the field. Discrete, or reduced-order, models provide a concise description of complex phenomena, such as negative refraction, or topological surface states; therefore, the combination of geometric building blocks to replicate discrete models presenting the desired features represents a promising approach. However, there is no reliable way to solve such an inverse problem. Here, we introduce 'perturbative metamaterials', a class of metamaterials consisting of weakly interacting unit cells. The weak interaction allows us to associate each element of the discrete model with individual geometric features of the metamaterial, thereby enabling a systematic design process. We demonstrate our approach by designing two-dimensional elastic metamaterials that realize Veselago lenses, zero-dispersion bands and topological surface phonons. While our selected examples are within the mechanical domain, the same design principle can be applied to acoustic, thermal and photonic metamaterials composed of weakly interacting unit cells. PMID- 29335609 TI - Prognostic significance of HALP (hemoglobin, albumin, lymphocyte and platelet) in patients with bladder cancer after radical cystectomy. AB - The outcome of bladder cancer after radical cystectomy is heterogeneous. We aim to evaluate the prognostic value of HALP (hemoglobin, albumin, lymphocyte and platelet) and explore novel prognostic indexes for patients with bladder cancer after radical cystectomy. In this retrospective study, 516 patients with bladder cancer after radical cystectomy were included. The median follow-up was 37 months (2 to 99 mo). Risk factors of decreased overall survival were older age, high TNM stage, high American Society of Anesthesiologists (ASA) grade and low HALP score. The predictive accuracy was better with HALP-based nomogram than TNM stage (C- index 0.76 +/- 0.039 vs. 0.708 +/- 0.041). By combining ASA grade and HALP, we created a novel index-HALPA score and found it an independent risk factor for decreased survival (HALPA score = 1, HR 1.624, 95% CI 1.139-2.314, P = 0.007; HALPA score = 2, HR 3.471, 95% CI: 1.861-6.472, P < 0.001).The present study identified the prognostic value of HALP and provided a novel index HALPA score for bladder cancer after radical cystectomy. PMID- 29335612 TI - Wrist circumference is associated with increased systolic blood pressure in children with overweight/obesity. AB - Wrist circumference is a clinical marker for insulin-resistance in overweight/obese children and adolescents. Insulin resistance is considered a major determinant of increased vascular resistance and hypertension. The aim of the study was to investigate the association between wrist circumference and systolic (S) and diastolic (D) blood pressure (BP) in a population of overweight/obese children and adolescents. A population of 1133 overweight/obese children and adolescents (n = 1133) were consecutively enrolled. Multivariate regression analyses were used to investigate the influence of independent variables on the variance of BP. The prevalence of hypertension was 21.74% in males and 28.95% in females (p = 0.048). The results showed that SBP was significantly associated with wrist circumference in both genders (p < 0.0001 for both comparisons). We found no association between DBP and wrist circumference in either gender. Wrist circumference accounted for 17% of the total variance of SBP in males and 14% in females. Wrist circumference, a marker of insulin resistance, is associated with increased SBP in overweight/obese children and adolescents, suggesting a role of insulin resistance in the pathogenesis and development of hypertension. PMID- 29335613 TI - Food items contributing to high dietary salt intake among Japanese adults in the 2012 National Health and Nutrition Survey. PMID- 29335614 TI - Reliability of pulse waveform separation analysis responses to an orthostatic challenge. AB - Cardiovascular autonomic nervous system function can be assessed using an orthostatic challenge to induce arterial wave reflection. While arterial reflection is typically estimated using a central augmentation index, a superior estimation can be obtained using pulse wave separation analysis to estimate the aortic backward pressure wave (Pb). However, to be of value in a clinical or research setting, an assessment tool must be precise (reliable). Therefore, this study sought to determine the measurement precision of Pb responses to a modified tilt-table test. Twenty healthy adults (26.4 year (SD 5.2), 24.7 kg/m2 (SD 3.8), 55% female) were tested in a fasted state on three different mornings separated by a maximum of seven days. Pressure waveforms were recorded on the left arm, and aortic waveforms were generated using a generalized transfer function. Subsequently, a physiologic flow waveform was assumed to separate the aortic pressure wave into its forward and timing-independent backward (Pb) components. The criterion intra-class correlation coefficient of >=0.75 was exceeded at baseline (0.79), following a 5-min tilt (0.75), and following a 5-min recovery from tilt (0.75). The standard error of measurement was 7%. These findings indicate that in a healthy cohort, the Pb response to an orthostatic challenge can be assessed with acceptable precision. The next step is to determine the sensitivity (validity) of this technique in identifying cardiovascular autonomic dysfunction in patient groups. PMID- 29335615 TI - Marinobufagenin is related to elevated central and 24-h systolic blood pressures in young black women: the African-PREDICT Study. AB - Marinobufagenin (MBG) is an endogenous steroidal alpha1-Na+K+-ATPase inhibitor. Because of its role in sodium handling, MBG has been associated with both antihypertensive and prohypertensive effects in normal physiology and pathology. MBG is positively associated with blood pressure in Dahl salt-sensitive rats exhibiting a similar hypertensive phenotype to black populations, characterized by impaired urinary Na+ excretion. However, clinical studies exploring blood pressure (BP)-related effects of MBG in black populations are scant. We determined whether the MBG/Na+ ratio (assessing the effectiveness of Na+ excretion resistance to MBG) is related to systolic BP (SBP) in young black men and women, compared to whites. We included 331 apparently healthy participants (20-30 years) (42.9% black, 43.8% men) on a habitual diet. We obtained 24-h and central SBP, and 24-h urinary Na+ and MBG levels. We found no ethnic differences in MBG, Na+ or MBG/Na+. MBG excretion correlated positively with Na+ excretion in all groups and to SBP in white men and black women (p <= 0.011). In black women only SBP related positively to MBG/Na+ in single and multi-variable adjusted regression models: central SBP (R2 = 0.26; beta = 0.28; p = 0.039), 24-h SBP (R2 = 0.46; beta = 0.30; p = 0.011), daytime (R2 = 0.38; beta = 0.28; p = 0.023) and nighttime SBP (R2 = 0.38; beta = 0.33; p = 0.009). In contrast, inverse associations of MBG/Na+ with nighttime SBP were evident in white women (r = 0.20; p = 0.038) but lost significance after multiple adjustments (R2 = 0.36; beta = -0.13; p = 0.12). We found independent positive associations of SBP with MBG/Na+ in black women. This data supports the concept that reduced MBG-mediated Na+ excretion can contribute to adverse hemodynamics. PMID- 29335616 TI - Roles of angiotensin II type 2 receptor in mice with fetal growth restriction. AB - Our previous report indicated that vascular injury enhances vascular remodeling in fetal growth restriction (FGR) mice. The angiotensin II type 2 receptor (AT2R) is relatively highly expressed in fetal mice. Therefore, we investigated the roles of AT2R in FGR-induced cardiovascular disease using AT2R knockout (AT2KO) mice. Dams (wild-type and AT2KO mice) were fed an isocaloric diet containing 20% protein (NP) or 8% protein (LP) until delivery. Arterial blood pressure, body weight, and histological changes in organs were investigated in offspring. The birth weight of offspring from dams fed an LP diet (LPO) was significantly lower than that of offspring from dams fed an NP diet. The heart/body and kidney/body weight ratios in AT2KO-LPO at 12 weeks of age were significantly higher than those in the other groups. Greater thickness of the left ventricular wall, larger cardiomyocyte size and enhancement of perivascular fibrosis were observed in AT2KO-LPO. Interestingly, mRNA expression of collagen I and inflammatory cytokines was markedly higher in the AT2KO-LPO heart at 6 weeks of age but not at 12 weeks of age. AT2R signaling may be involved in cardiovascular disorders of adult offspring with FGR. Regulation of AT2R could contribute to preventing future cardiovascular disease in FGR offspring. PMID- 29335617 TI - Cardiovascular Function of Modern Pigs Does not Comply with Allometric Scaling Laws. AB - Growing concerns have been expressed regarding cardiovascular performance in modern farm pigs, which has been proposed as a critical factor contributing to the reduced adaptability of modern pigs to stress. Here we tested the hypothesis that cardiac dimensions and pump function in modern heavy farm pigs are disproportionally low for their body weight, and investigated potential underlying mechanisms. The results from the present study indeed demonstrate disproportionally low values for stroke volume and cardiac output in pigs with bodyweights over 150 kg. Importantly, these low values were not the result of impaired left ventricular (LV) systolic contractile function, but were due to a disproportionally small LV end-diastolic volume. The latter was associated with changes in determinants of LV passive stiffness, including (i) an increase in LV myocardial collagen, (ii) a shift from the compliant N2BA titin isoform towards the stiff N2B, and (iii) a marked elevation of aortic blood pressure. Taken together, these results demonstrate reduced pumping capacity of the hearts of heavy modern pigs, due to structural abnormalities in the LV myocardium. PMID- 29335620 TI - Maternal, dominance and additive genetic effects in Nile tilapia; influence on growth, fillet yield and body size traits. AB - There are only few studies of dominance effects in non-inbred aquaculture species, since commonly used mating designs often have low power to separate dominance, maternal and common environmental effects. Here, a factorial design with reciprocal cross, common rearing of eggs and subsequent lifecycle stages and pedigree assignment using DNA microsatellites was used to separate these effects and estimate dominance (d2) and maternal (m2) ratios in Nile tilapia for six commercial traits. The study included observations on 2524 offspring from 155 full-sib families. Substantial contributions of dominance were observed (P < 0.05) for body depth (BD) and body weight at harvest (BWH) with estimates of d2 = 0.27 (s.e. 0.09) and 0.23 (s.e. 0.09), respectively in the current breeding population. In addition the study found maternal variance (P < 0.05) for BD, BWH, body thickness and fillet weight explaining ~10% of the observed phenotypic variance. For fillet yield (FY) and body length (BL), no evidence was found for either maternal or dominance variance. For traits exhibiting maternal variance, including this effect in evaluations caused substantial re-ranking of selection candidates, but the impact of including dominance effects was notably less. Breeding schemes may benefit from utilising maternal variance in increasing accuracy of evaluations, reducing bias, and developing new lines, but the utilisation of the dominance variance may require further refinement of parameter estimates. PMID- 29335618 TI - Long-Term Maintenance of Human Pluripotent Stem Cells on cRGDfK-Presenting Synthetic Surfaces. AB - Synthetic human pluripotent stem cell (hPSC) culture surfaces with defined physical and chemical properties will facilitate improved research and therapeutic applications of hPSCs. In this study, synthetic surfaces for hPSC culture in E8 medium were produced for screening by modifying two polymer brush coatings [poly(acrylamide-co-acrylic acid) (PAAA) and poly(acrylamide-co propargyl acrylamide) (PAPA)] to present single peptides. Adhesion of hPSC colonies was more consistently observed on surfaces modified with cRGDfK compared to surfaces modified with other peptide sequences tested. PAPA-coated polystyrene flasks with coupled cRGDfK (cRGDfK-PAPA) were then used for long-term studies of three hPSC lines (H9, hiPS-NHF1.3, Genea-02). Cell lines maintained for ten passages on cRGDfK-PAPA were assessed for colony morphology, proliferation rate, maintenance of OCT4 expression, cell viability at harvest, teratoma formation potential, and global gene expression as assessed by the PluriTestTM assay. cRGDfK-PAPA and control cultures maintained on GeltrexTM produced comparable results in most assays. No karyotypic abnormalities were detected in cultures maintained on cRGDfK-PAPA, while abnormalities were detected in cultures maintained on GeltrexTM, StemAdhereTM or SynthemaxTM. This is the first report of long term maintenance of hPSC cultures on the scalable, stable, and cost effective cRGDfK-PAPA coating. PMID- 29335619 TI - Cytokine MIF Enhances Blood-Brain Barrier Permeability: Impact for Therapy in Ischemic Stroke. AB - Ischemic stroke is a devastating disease with limited therapeutic options. It is very urgent to find a new target for drug development. Here we found that the blood level of MIF in ischemic stroke patients is upregulated. To figure out the pathological role of MIF in ischemic stroke, both in vitro and in vivo studies were conducted. For in vitro studies, primary cortical neuron cultures and adult rat brain endothelial cells (ARBECs) were subjected to oxygen-glucose deprivation (OGD)/reoxygenation. Middle cerebral artery occlusion (MCAo) rodent models were used for in vivo studies. The results show that MIF exerts no direct neuronal toxicity in primary culture but disrupts tight junction in ARBECs. Furthermore, administration of MIF following MCAo shows the deleterious influence on stroke induced injury by destroying the tight junction of blood-brain barrier and increasing the infarct size. In contrast, administration of MIF antagonist ISO-1 has the profound neuroprotective effect. Our results demonstrate that MIF might be a good drug target for the therapy of stroke. PMID- 29335621 TI - Prognostic relevance of DNMT3A R882 mutations in AML patients undergoing non myeloablative conditioning hematopoietic stem cell transplantation. PMID- 29335622 TI - Topical vitamin D analog for chronic graft versus host disease of the skin. PMID- 29335623 TI - Sinusoidal obstruction syndrome/veno-occlusive disease after high-dose intravenous busulfan/melphalan conditioning therapy in high-risk Ewing Sarcoma. AB - This mono-institutional observational study was conducted to determine incidence, severity, risk factors, and outcome of sinusoidal obstruction syndrome/veno occlusive disease (SOS/VOD) in high-risk Ewing sarcoma (ES) patients treated with intravenous busulfan and melphalan (BU-MEL) followed by autologous stem cell transplantation (ASCT). During the past 10 years, 75 consecutive ES patients resulted evaluable for the analysis. After diagnosis of SOS/VOD, defibrotide therapy was started as soon as the medication was available. The variables analyzed as potential risk factors were: gender, patient's age at diagnosis, primary tumor site, disease stage, and prior radiation therapy (RT) given, focusing on RT liver exposure. The median age at diagnosis was 18.8 years. Five patients developed moderate to severe SOS/VOD (cumulative incidence, 6.67%). None of 32 pediatric patients (<=17 years) developed SOS/VOD (p = 0.0674). In univariate analysis, prior RT liver exposure resulted statistically significant (p = 0.0496). There was one death due to severe SOS/VOD. This study reports the largest series of high-risk ES patients treated with intravenous BU-MEL before ASCT. The incidence of SOS/VOD was lower when compared with other studies that used oral busulfan. Any prior RT liver exposure should be avoided. Earlier defibrotide treatment confirms to be effective. PMID- 29335624 TI - Beneficial impact of low-dose rabbit anti-thymocyte globulin in unrelated hematopoietic stem cell transplantation: focusing on difference between stem cell sources. PMID- 29335626 TI - Using liver elastography to diagnose sinusoidal obstruction syndrome in pediatric patients undergoing hematopoetic stem cell transplant. AB - Sinusoidal obstruction syndrome (SOS) is a potentially fatal complication of hematopoietic stem cell transplantation (HSCT). Traditional ultrasound (US) has poor sensitivity and specificity. US shear wave elastography (SWE) is a newer technology that measures liver stiffness. This is a single-institution, prospective cohort study evaluating SWE in patients younger than 21 years who received HSCT from December 2015 through June 2017. SOS was defined using the modified Seattle criteria. Subjects had US with SWE at three scheduled time points. t-tests were used to assess for difference between the groups and ROC curves were generated. Twenty-five patients were included. Five subjects developed SOS. At day +5 HSCT, SOS patients had SWE velocities that increased by 0.25 +/- 0.21 m/s compared to 0.02 +/- 0.18 in patients without SOS (p = 0.020). At day +14, SOS patients had SWE velocities that significantly increased by 0.91 m/s +/- 1.14 m/s compared to 0.03 m/s +/- 0.23 m/s in patients without SOS (p = 0.010). SWE SOS diagnosis occurred on average 9 and 11 days before clinical and conventional US diagnosis, respectively. Patients who develop SOS have increased liver stiffness compared to patients who do not develop SOS. SWE changes occur before other imaging and clinical findings of SOS. PMID- 29335625 TI - The European Society for Blood and Marrow Transplantation (EBMT) Consensus Guidelines for the Detection and Treatment of Donor-specific Anti-HLA Antibodies (DSA) in Haploidentical Hematopoietic Cell Transplantation. AB - Haploidentical donors are now increasingly considered for transplantation in the absence of HLA-matched donors or when an urgent transplant is needed. Donor specific anti-HLA antibodies (DSA) have been recently recognized as an important barrier against successful engraftment of donor cells, which can affect transplant survival. DSA appear more prevalent in this type of transplant due to higher likelihood of alloimmunization of multiparous females against offspring's HLA antigens, and the degree of mismatch. Here we summarize the evidence for the role of DSA in the development of primary graft failure in haploidentical transplantation and provide consensus recommendations from the European Society for Blood and Marrow Transplant Group on testing, monitoring, and treatment of patients with DSA receiving haploidentical hematopoietic progenitor cell transplantation. PMID- 29335627 TI - A comparison of attitudes toward HSCT and survival estimations post HSCT across two pediatric Hematology-Oncology and Intensive Care departments in Canada. PMID- 29335628 TI - Endothelial cell damage in idiopathic pneumonia syndrome. PMID- 29335629 TI - A prospective, randomized evaluation of the feasibility of exergaming on patients undergoing hematopoietic stem cell transplantation. AB - The positive effects of physical and sports therapy for strain dependent physical practice and improved quality of life (QoL) are well known. Nevertheless, the available capacities and problem-oriented therapies in the setting of hematopoietic stem cell transplantation (HSCT) are limited. We conducted a prospective, randomized study among 42 HSCT recipients in order to investigate the influence of exergaming on Nintendo Wii(r) or classical physiotherapy (PT) on physical fitness and psychological well-being. The trial included evaluation of muscle strength, endurance, physical activity, distress, QoL, anxiety, and depression. Within the first 2 weeks after HSCT endurance, muscle strength and physical well-being decreased, while the value of distress increased significantly in both groups. However, exergaming on Nintendo Wii(r) resulted in a decrease of anxiety and depression and improved emotional well-being, while the PT group showed a contrariwise pattern of these features. Analysis of the FACT BMT revealed a decline of QoL domains 2 and 4 weeks after HSCT and an improvement afterwards. The decrease of functional status after HSCT was accompanied by a drop of QoL and an increase of distress in both groups. However, our prospective study demonstrates that exergaming using the Nintendo Wii(r) is feasible and well tolerated in HSCT recipients. PMID- 29335630 TI - Haploidentical stem cell transplantation cures autoimmune hepatitis and cerebrovascular disease in a patient with sickle cell disease. PMID- 29335631 TI - Impact of HLA allele mismatch at HLA-A, -B, -C, -DRB1, and -DQB1 on outcomes in haploidentical stem cell transplantation. AB - The impact of human leukocyte antigen (HLA) allele mismatch on transplant outcomes in haploidentical stem cell transplantation (haplo-SCT) has not been established. We retrospectively studied 595 patients with hematologic malignancy who received haplo-SCT. The impact of multiple HLA allele mismatches (HLA-A, -B, C, -DRB1, and -DQB1) and each HLA allele mismatch on transplant outcomes was analyzed. Greater number of HLA allele disparity does not appear worsen outcome. As for each HLA locus, HLA-A mismatch correlated with decreased rate of platelet engraftment (HR 0.740, P = .003); HLA-B mismatch independently correlated with decreased relapse rate (HR 0.494, P = .032) and improved disease-free survival and overall survival (HR 0.514, P = .003; HR 0.494, P = .002, respectively); HLA C mismatch appeared to be protective for transplant-related mortality (TRM) (HR 0.567, P = .039); HLA-DRB1 mismatch was associated with increased cumulative incidence of grade II-IV acute graft-vs.-host disease (GVHD) (HR 1.942, P = .002). No associations of any HLA mismatch with delayed neutrophil engraftment or increased cumulative incidence of chronic GVHD were observed. Our data indicated that high degree of HLA allele mismatches did not adversely affect transplant outcomes in haplo-SCT and each HLA allele mismatch had different effect. PMID- 29335632 TI - Long-term outcome analysis of reduced-intensity allogeneic stem cell transplantation in patients with mantle cell lymphoma: a retrospective study from the EBMT Lymphoma Working Party. AB - Reduced-intensity allogeneic stem cell transplantation (RIST) is usually reserved for patients with mantle cell lymphoma who relapse after an autoSCT. However, the long-term efficacy of RIST and its curative potential have not been clearly demonstrated. We studied the long-term outcome of patients receiving a RIST for MCL as reported to the EBMT. A total of 324 patients, median age 57 years (range 31-70), underwent a RIST between 2000 and 2008; 43% of the patients had received >3 lines of prior therapy, including an autoSCT in 46%. Non-relapse mortality (NRM) was 10% at 100 days and 24% at 1 year and was lower for patients receiving anti-thymocyte globulin (ATG)/ALG (RR 0.59, p = 0.046). After a median follow-up of 72 months (range 3-159), 118 patients relapsed at a median of 8 months post RIST (range 1-117). The cumulative incidence of relapse was 25% and 40% at 1 and 5 years, respectively, and was associated with chemorefractory disease (HR 0.49, p = 0.01) and the use of CAMPATH (HR 2.59, p = 0.0002). The 4-year progression free survival rate and overall survival rate was 31 and 40%, respectively. RIST results in long-term disease-free survival in about 30% of the patients, including those patients relapsing after a prior autoSCT. PMID- 29335633 TI - Long term survival among patients who are disease free at 1-year post allogeneic hematopoietic cell transplantation: a single center analysis of 389 consecutive patients. AB - Allogeneic hematopoietic cell transplantation (HCT) is associated with significant morbidity and mortality especially in the first year after HCT. In this study, we examine the long-term outcomes of patients who survived at least one year post HCT without evidence of relapse. We analyzed the records for 389 consecutive patients receiving an allogeneic transplant from 2005 to 2016 from a MRD, MUD, or haploidentical donor, who were alive and disease free at one year post-transplant. Patient characteristics and outcome parameters were extracted from our institutional database where they had been prospectively entered. A total of 389 patients met the selection criteria with donor graft including MRD 37%, MUD 39%, and Haploidenitcal relative 24%. The median follow-up of survivors from time of HCT was 48.2 months. The median overall survival and disease-free survival at 5 years after the first anniversary post HCT was 78 and 74%, respectively. The most common causes of late mortality were disease relapse, chronic GVHD and infections. The major risk factors for late mortality included chronic GVHD requiring immunosuppression, being transplanted between 2005 and 2009 compared to later years and male sex. Patients with high risk disease risk index (DRI) had worse OS compared to low risk DRI. The risk factors for late relapse included male sex and high/very high disease risk index. The projected long-term survival of 1-year survivors following allogeneic HCT is excellent. However, some patients remain at high risk of late relapse and late mortality. Early referral to transplant, adopting post-transplant consolidation strategies for high risk patients, and implementing newer GVHD prevention methods are potential interventions to help minimize the risk of late relapse and death. PMID- 29335634 TI - The PII signaling protein from red algae represents an evolutionary link between cyanobacterial and Chloroplastida PII proteins. AB - PII superfamily consists of widespread signal transduction proteins found in all domains of life. Whereas they are well-studied in Archaea, Bacteria and Chloroplastida, no PII homolog has been analyzed in Rhodophyta (red algae), where PII is encoded by a chloroplast localized glnB gene. Here, we characterized relevant sensory properties of PII from the red alga Porphyra purpurea (PpPII) in comparison to PII proteins from different phyla of oxygenic phototrophs (cyanobacteria, Chlamydomonas and Physcomitrella) to assess evolutionary conservation versus adaptive properties. Like its cyanobacterial counterparts, PpPII binds ATP/ADP and 2-oxoglutarate in synergy with ATP. However, green algae and land plant PII proteins lost the ability to bind ADP. In contrast to PII proteins from green algae and land plants, PpPII enhances the activity of N acetyl-L-glutamate kinase (NAGK) and relieves it from feedback inhibition by arginine in a glutamine-independent manner. Like PII from Chloroplastida, PpPII is not able to interact with the cyanobacterial transcriptional co-activator PipX. These data emphasize the conserved role of NAGK as a major PII-interactor throughout the evolution of oxygenic phototrophs, and confirms the specific role of PipX for cyanobacteria. Our results highlight the PII signaling system in red algae as an evolutionary intermediate between Cyanobacteria and Chlorophyta. PMID- 29335636 TI - Saving seed microbiomes. AB - Plant seeds are home to diverse microbial communities whose composition is determined by plant genotype, environment, and management practices. Plant domestication is now recognized as an important driver of plant-associated microbial diversity. To what extent and how domestication affects seed microbiomes is less well studied. Here we propose a 'back-to-the-future' approach to harness seed microbiomes of wild relatives of crop cultivars to save and re instate missing beneficial seed microbes for improved plant tolerance to biotic and abiotic stress. PMID- 29335635 TI - The emergence of metabolic heterogeneity and diverse growth responses in isogenic bacterial cells. AB - Microorganisms adapt to frequent environmental changes through population diversification. Previous studies demonstrated phenotypic diversity in a clonal population and its important effects on microbial ecology. However, the dynamic changes of phenotypic composition have rarely been characterized. Also, cellular variations and environmental factors responsible for phenotypic diversity remain poorly understood. Here, we studied phenotypic diversity driven by metabolic heterogeneity. We characterized metabolic activities and growth kinetics of starved Escherichia coli cells subject to nutrient upshift at single-cell resolution. We observed three subpopulations with distinct metabolic activities and growth phenotypes. One subpopulation was metabolically active and immediately grew upon nutrient upshift. One subpopulation was metabolically inactive and non viable. The other subpopulation was metabolically partially active, and did not grow upon nutrient upshift. The ratio of these subpopulations changed dynamically during starvation. A long-term observation of cells with partial metabolic activities indicated that their metabolism was later spontaneously restored, leading to growth recovery. Further investigations showed that oxidative stress can induce the emergence of a subpopulation with partial metabolic activities. Our findings reveal the emergence of metabolic heterogeneity and associated dynamic changes in phenotypic composition. In addition, the results shed new light on microbial dormancy, which has important implications in microbial ecology and biomedicine. PMID- 29335637 TI - Expression profiling of host and virus during a coccolithophore bloom provides insights into the role of viral infection in promoting carbon export. AB - The cosmopolitan coccolithophore Emiliania huxleyi is a unicellular eukaryotic alga that forms vast blooms in the oceans impacting large biogeochemical cycles. These blooms are often terminated due to infection by the large dsDNA virus, E. huxleyi virus (EhV). It was recently established that EhV-induced modulation of E. huxleyi metabolism is a key factor for optimal viral infection cycle. Despite the huge ecological importance of this host-virus interaction, the ability to assess its spatial and temporal dynamics and its possible impact on nutrient fluxes is limited by current approaches that focus on quantification of viral abundance and biodiversity. Here, we applied a host and virus gene expression analysis as a sensitive tool to quantify the dynamics of this interaction during a natural E. huxleyi bloom in the North Atlantic. We used viral gene expression profiling as an index for the level of active infection and showed that the latter correlated with water column depth. Intriguingly, this suggests a possible sinking mechanism for removing infected cells as aggregates from the E. huxleyi population in the surface layer into deeper waters. Viral infection was also highly correlated with induction of host metabolic genes involved in host life cycle, sphingolipid, and antioxidant metabolism, providing evidence for modulation of host metabolism under natural conditions. The ability to track and quantify defined phases of infection by monitoring co-expression of viral and host genes, coupled with advance omics approaches, will enable a deeper understanding of the impact that viruses have on the environment. PMID- 29335638 TI - Clearcutting alters decomposition processes and initiates complex restructuring of fungal communities in soil and tree roots. AB - Forest management practices often severely affect forest ecosystem functioning. Tree removal by clearcutting is one such practice, producing severe impacts due to the total reduction of primary productivity. Here, we assessed changes to fungal community structure and decomposition activity in the soil, roots and rhizosphere of a Picea abies stand for a 2-year period following clearcutting compared to data from before tree harvest. We found that the termination of photosynthate flow through tree roots into soil is associated with profound changes in soil, both in decomposition processes and fungal community composition. The rhizosphere, representing an active compartment of high enzyme activity and high fungal biomass in the living stand, ceases to exist and starts to resemble bulk soil. Decomposing roots appear to separate from bulk soil and develop into hotspots of decomposition and important fungal biomass pools. We found no support for the involvement of ectomycorrhizal fungi in the decomposition of roots, but we found some evidence that root endophytic fungi may have an important role in the early stages of this process. In soil, activity of extracellular enzymes also decreased in the long term following the end of rhizodeposition by tree roots. PMID- 29335639 TI - Reply to the commentary "Uncultivated microbes-in need of their own nomenclature?" PMID- 29335640 TI - The stage of soil development modulates rhizosphere effect along a High Arctic desert chronosequence. AB - In mature soils, plant species and soil type determine the selection of root microbiota. Which of these two factors drives rhizosphere selection in barren substrates of developing desert soils has, however, not yet been established. Chronosequences of glacier forelands provide ideal natural environments to identify primary rhizosphere selection factors along the changing edaphic conditions of a developing soil. Here, we analyze changes in bacterial diversity in bulk soils and rhizospheres of a pioneer plant across a High Arctic glacier chronosequence. We show that the developmental stage of soil strongly modulates rhizosphere community assembly, even though plant-induced selection buffers the effect of changing edaphic factors. Bulk and rhizosphere soils host distinct bacterial communities that differentially vary along the chronosequence. Cation exchange capacity, exchangeable potassium, and metabolite concentration in the soil account for the rhizosphere bacterial diversity. Although the soil fraction (bulk soil and rhizosphere) explains up to 17.2% of the variation in bacterial microbiota, the soil developmental stage explains up to 47.7% of this variation. In addition, the operational taxonomic unit (OTU) co-occurrence network of the rhizosphere, whose complexity increases along the chronosequence, is loosely structured in barren compared with mature soils, corroborating our hypothesis that soil development tunes the rhizosphere effect. PMID- 29335641 TI - Benefit from decline: the primary transcriptome of Alteromonas macleodii str. Te101 during Trichodesmium demise. AB - Interactions between co-existing microorganisms deeply affect the physiology of the involved organisms and, ultimately, the function of the ecosystem as a whole. Copiotrophic Alteromonas are marine gammaproteobacteria that thrive during the late stages of phytoplankton blooms in the marine environment and in laboratory co-cultures with cyanobacteria such as Trichodesmium. The response of this heterotroph to the sometimes rapid and transient changes in nutrient supply when the phototroph crashes is not well understood. Here, we isolated and sequenced the strain Alteromonas macleodii str. Te101 from a laboratory culture of Trichodesmium erythraeum IMS101, yielding a chromosome of 4.63 Mb and a single plasmid of 237 kb. Increasing salinities to >=43 ppt inhibited the growth of Trichodesmium but stimulated growth of the associated Alteromonas. We characterized the transcriptomic responses of both microorganisms and identified the complement of active transcriptional start sites in Alteromonas at single nucleotide resolution. In replicate cultures, a similar set of genes became activated in Alteromonas when growth rates of Trichodesmium declined and mortality was high. The parallel activation of fliA, rpoS and of flagellar assembly and growth-related genes indicated that Alteromonas might have increased cell motility, growth, and multiple biosynthetic activities. Genes with the highest expression in the data set were three small RNAs (Aln1a-c) that were identified as analogs of the small RNAs CsrB-C in E. coli or RsmX-Z in pathogenic bacteria. Together with the carbon storage protein A (CsrA) homolog Te101_05290, these RNAs likely control the expression of numerous genes in responding to changes in the environment. PMID- 29335642 TI - Controlled dynamic screening of excitonic complexes in 2D semiconductors. AB - We report a combined theoretical/experimental study of dynamic screening of excitons in media with frequency-dependent dielectric functions. We develop an analytical model showing that interparticle interactions in an exciton are screened in the range of frequencies from zero to the characteristic binding energy depending on the symmetries and transition energies of that exciton. The problem of the dynamic screening is then reduced to simply solving the Schrodinger equation with an effectively frequency-independent potential. Quantitative predictions of the model are experimentally verified using a test system: neutral, charged and defect-bound excitons in two-dimensional monolayer WS2, screened by metallic, liquid, and semiconducting environments. The screening induced shifts of the excitonic peaks in photoluminescence spectra are in good agreement with our model. PMID- 29335643 TI - Decoding Musical Training from Dynamic Processing of Musical Features in the Brain. AB - Pattern recognition on neural activations from naturalistic music listening has been successful at predicting neural responses of listeners from musical features, and vice versa. Inter-subject differences in the decoding accuracies have arisen partly from musical training that has widely recognized structural and functional effects on the brain. We propose and evaluate a decoding approach aimed at predicting the musicianship class of an individual listener from dynamic neural processing of musical features. Whole brain functional magnetic resonance imaging (fMRI) data was acquired from musicians and nonmusicians during listening of three musical pieces from different genres. Six musical features, representing low-level (timbre) and high-level (rhythm and tonality) aspects of music perception, were computed from the acoustic signals, and classification into musicians and nonmusicians was performed on the musical feature and parcellated fMRI time series. Cross-validated classification accuracy reached 77% with nine regions, comprising frontal and temporal cortical regions, caudate nucleus, and cingulate gyrus. The processing of high-level musical features at right superior temporal gyrus was most influenced by listeners' musical training. The study demonstrates the feasibility to decode musicianship from how individual brains listen to music, attaining accuracy comparable to current results from automated clinical diagnosis of neurological and psychological disorders. PMID- 29335645 TI - The new genetics of intelligence. AB - Intelligence - the ability to learn, reason and solve problems - is at the forefront of behavioural genetic research. Intelligence is highly heritable and predicts important educational, occupational and health outcomes better than any other trait. Recent genome-wide association studies have successfully identified inherited genome sequence differences that account for 20% of the 50% heritability of intelligence. These findings open new avenues for research into the causes and consequences of intelligence using genome-wide polygenic scores that aggregate the effects of thousands of genetic variants. PMID- 29335646 TI - Dipeptidyl peptidase-4 inhibitors, pancreatic cancer and acute pancreatitis: A meta-analysis with trial sequential analysis. AB - The use of dipeptidyl peptidase-4 (DPP-4) inhibitors may be associated with pancreatic cancer and acute pancreatitis. Recent meta-analyses have reported conflicting findings. Therefore, we performed a meta-analysis to assess the risk of both pancreatic cancer and acute pancreatitis associated with the use of DPP-4 inhibitors. We also used trial sequential analysis to evaluate whether the number of patients included was enough to reach conclusions. We included randomised controlled trials lasting 24 weeks or more that compared DPP-4 inhibitors with placebo or other antihyperglycaemic agents. A total of 59,404 patients were included. There was no relationship between the use of DPP-4 inhibitors and pancreatic cancer (Peto odds ratio 0.65; 95% CI 0.35-1.21), and the optimal sample size was reached to determine a number needed to harm (NNH) of 1000 patients. DPP-4 inhibitors were associated with increased risk for acute pancreatitis (Peto odds ratio 1.72; 95% CI 1.18-2.53), with an NNH of 1066 patients, but the optimal sample size for this outcome was not reached. In conclusion, there is no association between DPP-4 inhibitors and pancreatic cancer, and a small risk for acute pancreatitis was observed with DPP-4 inhibitor use, although the latter finding is not definitive. PMID- 29335644 TI - Runs of homozygosity: windows into population history and trait architecture. AB - Long runs of homozygosity (ROH) arise when identical haplotypes are inherited from each parent and thus a long tract of genotypes is homozygous. Cousin marriage or inbreeding gives rise to such autozygosity; however, genome-wide data reveal that ROH are universally common in human genomes even among outbred individuals. The number and length of ROH reflect individual demographic history, while the homozygosity burden can be used to investigate the genetic architecture of complex disease. We discuss how to identify ROH in genome-wide microarray and sequence data, their distribution in human populations and their application to the understanding of inbreeding depression and disease risk. PMID- 29335647 TI - Aged polymorphonuclear leukocytes cause fibrotic interstitial lung disease in the absence of regulation by B cells. AB - Pulmonary immunity requires tight regulation, as interstitial inflammation can compromise gas exchange and lead to respiratory failure. Here we found a greater number of aged CD11bhiL-selectinloCXCR4+ polymorphonuclear leukocytes (PMNs) in lung vasculature than in the peripheral circulation. Using pulmonary intravital microscopy, we observed lung PMNs physically interacting with B cells via beta2 integrins; this initiated neutrophil apoptosis, which led to macrophage-mediated clearance. Genetic deletion of B cells led to the accumulation of aged PMNs in the lungs without systemic inflammation, which caused pathological fibrotic interstitial lung disease that was attenuated by the adoptive transfer of B cells or depletion of PMNs. Thus, the lungs are an intermediary niche in the PMN lifecycle wherein aged PMNs are regulated by B cells, which restrains their potential to cause pulmonary pathology. PMID- 29335650 TI - CNS cancer: TTFields improve survival. PMID- 29335648 TI - Rapid chromatin repression by Aire provides precise control of immune tolerance. AB - Aire mediates the expression of tissue-specific antigens in thymic epithelial cells to promote tolerance against self-reactive T lymphocytes. However, the mechanism that allows expression of tissue-specific genes at levels that prevent harm is unknown. Here we show that Brg1 generates accessibility at tissue specific loci to impose central tolerance. We found that Aire has an intrinsic repressive function that restricts chromatin accessibility and opposes Brg1 across the genome. Aire exerted this repressive influence within minutes after recruitment to chromatin and restrained the amplitude of active transcription. Disease-causing mutations that impair Aire-induced activation also impair the protein's repressive function, which indicates dual roles for Aire. Together, Brg1 and Aire fine-tune the expression of tissue-specific genes at levels that prevent toxicity yet promote immune tolerance. PMID- 29335649 TI - Hyaluronic acid-based nano-sized drug carrier-containing Gellan gum microspheres as potential multifunctional embolic agent. AB - The purpose of this study was to develop a gellan gum-based multifunctional embolic agent. Calibrated spherical gellan gum and nanoparticle-containing gellan gum microspheres were prepared via water-in oil emulsification method. Self assembled nanoparticles composed of short-chain hyaluronic acid and polyethylenimine as the doxorubicin carrier were prepared. The short-chain hyaluronic acid/polyethylenimine/ doxorubicin (sHH/PH/Dox) with the mean size was 140 +/- 8 nm. To examine sHH/PH/Dox nanoparticle uptake into cells, the results confirmed that sHH/PH nanoparticles as drug carrier can facilitate the transport of doxorubicin into HepG2 liver cancer cells. Subsequently, sHH/PH/Dox merged into the gellan gum (GG) microspheres forming GG/sHH/PH/Dox microsphere. After a drug release experiment lasting 45 days, the amount of released doxorubicin from 285, 388, and 481 MUm GG/sHH/PH/Dox microspheres were approximately 4.8, 1.8 and 1.1-fold above the IC50 value of the HepG2 cell. GG/sHH/PH/Dox microspheres were performed in rabbit ear embolization model and ischemic necrosis on ear was visible due to the vascular after 8 days. Regarding the application of this device in the future, we aim to provide better embolization agents for transcatheter arterial chemoembolization (TACE). PMID- 29335651 TI - Haematological cancer: Daratumumab proves effective in patients with newly diagnosed multiple myeloma. PMID- 29335652 TI - Kidney cancer: First-in-class HIF2alpha antagonist safe and effective. PMID- 29335653 TI - Will a global fund for cancer be the answer? PMID- 29335654 TI - Microwave SQUID Multiplexer Demonstration for Cosmic Microwave Background Imagers. AB - Key performance characteristics are demonstrated for the microwave SQUID multiplexer (umux) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64 channel demonstration, we show that the umux produces a white, input referred current noise level of [Formula: see text] at -77 dB microwave probe tone power, which is well below expected fundamental detector and photon noise sources for a ground-based CMB-optimized bolometer. Operated with negligible photon loading, we measure [Formula: see text] in the TES-coupled channels biased at 65% of the sensor normal resistance. This noise level is consistent with that predicted from bolometer thermal fluctuation (i.e. phonon) noise. Furthermore, the power spectral density is white over a range of frequencies down to ~ 100 mHz, which enables CMB mapping on large angular scales that constrain the physics of inflation. Additionally, we report cross-talk measurements that indicate a level below 0.3%, which is less than the level of cross-talk from multiplexed readout systems in deployed CMB imagers. These measurements demonstrate the umux as a viable readout technique for future CMB imaging instruments. PMID- 29335655 TI - A Bifactor Approach to Model Multifaceted Constructs in Statistical Mediation Analysis. AB - Statistical mediation analysis allows researchers to identify the most important mediating constructs in the causal process studied. Identifying specific mediators is especially relevant when the hypothesized mediating construct consists of multiple related facets. The general definition of the construct and its facets might relate differently to an outcome. However, current methods do not allow researchers to study the relationships between general and specific aspects of a construct to an outcome simultaneously. This study proposes a bifactor measurement model for the mediating construct as a way to parse variance and represent the general aspect and specific facets of a construct simultaneously. Monte Carlo simulation results are presented to help determine the properties of mediated effect estimation when the mediator has a bifactor structure and a specific facet of a construct is the true mediator. This study also investigates the conditions when researchers can detect the mediated effect when the multidimensionality of the mediator is ignored and treated as unidimensional. Simulation results indicated that the mediation model with a bifactor mediator measurement model had unbiased and adequate power to detect the mediated effect with a sample size greater than 500 and medium a- and b-paths. Also, results indicate that parameter bias and detection of the mediated effect in both the data-generating model and the misspecified model varies as a function of the amount of facet variance represented in the mediation model. This study contributes to the largely unexplored area of measurement issues in statistical mediation analysis. PMID- 29335657 TI - Changing Gender Norms and Marriage Dynamics in the United States. AB - Using a regional measure of gender norms from the General Social Surveys together with marital histories from the Panel Study of Income Dynamics, this study explored how gender norms were associated with women's marriage dynamics between 1968 and 2012. Results suggested that a higher prevalence of egalitarian gender norms predicted a decline in marriage formation. This decline was, however, only true for women without a college degree. For college-educated women, the association between gender norms and marriage formation became positive when gender egalitarianism prevailed. The findings also revealed an inverted U-shaped relationship between gender norms and divorce: an initial increase in divorce was observed when gender norms were predominantly traditional. The association, however, reversed as gender norms became egalitarian. No differences by education were found for divorce. The findings partially support the gender revolution framework but also highlight greater barriers to marriage for low-educated women as societies embrace gender equality. PMID- 29335656 TI - Hydrogen-Atom Transfer Oxidation with H2O2 Catalyzed by [FeII(1,2-bis(2,2' bipyridyl-6-yl)ethane(H2O)2]2+: Likely Involvement of a (MU-Hydroxo)(MU-1,2 peroxo)diiron(III) Intermediate. AB - The iron(II) triflate complex (1) of 1,2-bis(2,2'-bipyridyl-6-yl)ethane, with two bipyridine moieties connected by an ethane bridge, was prepared. Addition of aqueous 30% H2O2 to an acetonitrile solution of 1 yielded 2, a green compound with lambdamax=710 nm. Moessbauer measurements on 2 showed a doublet with an isomer shift (delta) of 0.35 mm/s and a quadrupole splitting (DeltaEQ) of 0.86 mm/s, indicative of an antiferromagnetically coupled diferric complex. Resonance Raman spectra showed peaks at 883, 556 and 451 cm-1 that downshifted to 832, 540 and 441 cm-1 when 1 was treated with H218O2. All the spectroscopic data support the initial formation of a (MU-hydroxo)(MU-1,2-peroxo)diiron(III) complex that oxidizes carbon-hydrogen bonds. At 0 degrees C 2 reacted with cyclohexene to yield allylic oxidation products but not epoxide. Weak benzylic C-H bonds of alkylarenes were also oxidized. A plot of the logarithms of the second order rate constants versus the bond dissociation energies of the cleaved C-H bond showed an excellent linear correlation. Along with the observation that oxidation of the probe substrate 2,2-dimethyl-1-phenylpropan-1-ol yielded the corresponding ketone but no benzaldehyde, and the kinetic isotope effect, kH/kD , of 2.8 found for the oxidation of xanthene, the results support the hypothesis for a metal-based H atom abstraction mechanism. Complex 2 is a rare example of a (MU-hydroxo)(MU-1,2 peroxo)diiron(III) complex that can elicit the oxidation of carbon-hydrogen bonds. PMID- 29335659 TI - Recommendation System for Adaptive Learning. AB - An adaptive learning system aims at providing instruction tailored to the current status of a learner, differing from the traditional classroom experience. The latest advances in technology make adaptive learning possible, which has the potential to provide students with high-quality learning benefit at a low cost. A key component of an adaptive learning system is a recommendation system, which recommends the next material (video lectures, practices, and so on, on different skills) to the learner, based on the psychometric assessment results and possibly other individual characteristics. An important question then follows: How should recommendations be made? To answer this question, a mathematical framework is proposed that characterizes the recommendation process as a Markov decision problem, for which decisions are made based on the current knowledge of the learner and that of the learning materials. In particular, two plain vanilla systems are introduced, for which the optimal recommendation at each stage can be obtained analytically. PMID- 29335658 TI - Highly Stereoselective Asymmetric Aldol Routes to tert-Butyl-2-(3,5 difluorophenyl)-1-oxiran-2-yl)ethyl)carbamates: Building Blocks for Novel Protease Inhibitors. AB - Enantioselective syntheses of tert-butyl ((S)-2-(3,5-difluorophenyl)-1-((S) oxiran-2-yl)ethyl)carbamate and ((S)-2-(3,5-difluorophenyl)-1-((R)-oxiran-2 yl)ethyl)carbamate are described. We utilized asymmetric syn- and anti-aldol reactions to set both stereogenic centers. We investigated ester-derived Ti enolate aldol reactions as well as Evans' diastereoselective syn-aldol reaction for these syntheses. We have converted optically active ((S)-2-(3,5 difluorophenyl)-1-((S)-oxiran-2-yl)ethyl)carbamate to a potent beta-secretase inhibitor. PMID- 29335660 TI - Can Linear Superiorization Be Useful for Linear Optimization Problems? AB - Linear superiorization considers linear programming problems but instead of attempting to solve them with linear optimization methods it employs perturbation resilient feasibility-seeking algorithms and steers them toward reduced (not necessarily minimal) target function values. The two questions that we set out to explore experimentally are (i) Does linear superiorization provide a feasible point whose linear target function value is lower than that obtained by running the same feasibility-seeking algorithm without superiorization under identical conditions? and (ii) How does linear superiorization fare in comparison with the Simplex method for solving linear programming problems? Based on our computational experiments presented here, the answers to these two questions are: "yes" and "very well", respectively. PMID- 29335661 TI - Weather Correlations to Calculate Infiltration Rates for U. S. Commercial Building Energy Models. AB - As building envelope performance improves, a greater percentage of building energy loss will occur through envelope leakage. Although the energy impacts of infiltration on building energy use can be significant, current energy simulation software have limited ability to accurately account for envelope infiltration and the impacts of improved airtightness. This paper extends previous work by the National Institute of Standards and Technology that developed a set of EnergyPlus inputs for modeling infiltration in several commercial reference buildings using Chicago weather. The current work includes cities in seven additional climate zones and uses the updated versions of the prototype commercial building types developed by the Pacific Northwest National Laboratory for the U. S. Department of Energy. Comparisons were made between the predicted infiltration rates using three representations of the commercial building types: PNNL EnergyPlus models, CONTAM models, and EnergyPlus models using the infiltration inputs developed in this paper. The newly developed infiltration inputs in EnergyPlus yielded average annual increases of 3 % and 8 % in the HVAC electrical and gas use, respectively, over the original infiltration inputs in the PNNL EnergyPlus models. When analyzing the benefits of building envelope airtightening, greater HVAC energy savings were predicted using the newly developed infiltration inputs in EnergyPlus compared with using the original infiltration inputs. These results indicate that the effects of infiltration on HVAC energy use can be significant and that infiltration can and should be better accounted for in whole-building energy models. PMID- 29335662 TI - Is Nebulin the Product of Duchenne Muscular Dystrophy Gene? PMID- 29335663 TI - Improving Mental Health Treatment Utilization in Military Veterans: Examining the Effects of Perceived Need for Care and Social Support. AB - Objective: Many veterans with mental health problems do not adequately utilize needed care. Research has focused on identifying barriers to mental health care in veterans. Method: The current study adds to existing literature by examining whether perceived need for treatment and social support affect treatment utilization in a national longitudinal survey of Iraq and Afghanistan veterans (n = 1090). Results: The Health Beliefs Model (HBM) postulates that a key reason why patients fail to obtain needed care is their belief "it's up to me to handle my own problems." This view was endorsed by 42% in the current national sample of veterans and was found in multivariate analysis to predict less treatment seeking in the next year. Mediation analysis revealed that veterans with higher ratings of social support were less likely to believe they needed to solve mental health problems on their own, indirectly equating to higher odds of treatment use. Simultaneously, findings indicated that posttraumatic stress disorder (PTSD) had a direct effect on more mental health visits but was also associated with higher endorsement that one needed to handle one's own problems and thus had an indirect effect of reducing mental health visits. Conclusion: Both social support and PTSD affected veterans' perceptions of needing to solve one's own problems, significantly predicted follow-up with mental health care. As a result, the findings indicate that clinicians' should explore veterans' belief systems about perceived treatment need as well as investigate the role of social support to improve mental health treatment utilization. PMID- 29335664 TI - Applying a biodeposition layer to increase the bond of a repair mortar on a mortar substrate. AB - One of the major concerns in infrastructure repair is a sufficient bond between the substrate and the repair material, especially for the long-term performance and durability of the repaired structure. In this study, the bond of the repair material on the mortar substrate is promoted via the biodeposition of a calcium carbonate layer by a ureolytic bacterium. X-ray diffraction and scanning electron microscopy were used to examine the interfaces between the repair material and the substrate, as well as the polymorph of the deposited calcium carbonate. The approximately 50 MUm thick biodeposition film on the mortar surface mostly consisted of calcite and vaterite. Both the repair material and the substrate tended to show a good adherence to that layer. The bond, as assessed by slant shear specimen testing, was improved by the presence of the biodeposition layer. A further increase was found when engineering the substrate surface using a structured pattern layer of biodeposition. PMID- 29335665 TI - Self-Control as Value-Based Choice. AB - Self-control is often conceived as a battle between "hot" impulsive processes and "cold" deliberative ones. Heeding the angel on one shoulder leads to success; following the demon on the other leads to failure. Self-control feels like a duality. What if that sensation is misleading, and, despite how they feel, self control decisions are just like any other choice? We argue that self-control is a form of value-based choice wherein options are assigned a subjective value and a decision is made through a dynamic integration process. We articulate how a value based choice model of self-control can capture its phenomenology and account for relevant behavioral and neuroscientific data. This conceptualization of self control links divergent scientific approaches, allows for more robust and precise hypothesis testing, and suggests novel pathways to improve self-control. PMID- 29335666 TI - A Modified Dynamic Surface Controller for Delayed Neuromuscular Electrical Stimulation. AB - A widely accepted model of muscle force generation during neuromuscular electrical stimulation (NMES) is a second-order nonlinear musculoskeletal dynamics cascaded to a delayed first-order muscle activation dynamics. However, most nonlinear NMES control methods have either neglected the muscle activation dynamics or used an ad hoc strategies to tackle the muscle activation dynamics, which may not guarantee control stability. We hypothesized that a nonlinear control design that includes muscle activation dynamics can improve the control performance. In this paper, a dynamic surface control (DSC) approach was used to design a PID-based NMES controller that compensates for EMD in the activation dynamics. Because the muscle activation is unmeasurable, a model based estimator was used to estimate the muscle activation in realtime. The Lyapunov stability analysis confirmed that the newly developed controller achieves semi-global uniformly ultimately bounded (SGUUB) tracking for the musculoskeletal system. Experiments were performed on two able-bodied subjects and one spinal cord injury subject using a modified leg extension machine. These experiments illustrate the performance of the new controller and compare it to a previous PID-DC controller that did not consider muscle activation dynamics in the control design. These experiments support our hypothesis that a control design that includes muscle activation improves the NMES control performance. PMID- 29335667 TI - Zero-inflated multiscale models for aggregated small area health data. AB - It is our primary focus to study the spatial distribution of disease incidence at different geographical levels. Often, spatial data are available in the form of aggregation at multiple scale levels such as census tract, county, state, and so on. When data are aggregated from a fine (e.g. county) to a coarse (e.g. state) geographical level, there will be loss of information. The problem is more challenging when excessive zeros are available at the fine level. After data aggregation, the excessive zeros at the fine level will be reduced at the coarse level. If we ignore the zero inflation and the aggregation effect, we could get inconsistent risk estimates at the fine and coarse levels. Hence, in this paper, we address those problems using zero inflated multiscale models that jointly describe the risk variations at different geographical levels. For the excessive zeros at the fine level, we use a zero inflated convolution model, whereas we consider a regular convolution model for the smoothed data at the coarse level. These methods provide a consistent risk estimate at the fine and coarse levels when high percentages of structural zeros are present in the data. PMID- 29335668 TI - Bayesian Empirical Likelihood Methods for Quantile Comparisons. AB - Bayes factors, practical tools of applied statistics, have been dealt with extensively in the literature in the context of hypothesis testing. The Bayes factor based on parametric likelihoods can be considered both as a pure Bayesian approach as well as a standard technique to compute p-values for hypothesis testing. We employ empirical likelihood methodology to modify Bayes factor type procedures for the nonparametric setting. The paper establishes asymptotic approximations to the proposed procedures. These approximations are shown to be similar to those of the classical parametric Bayes factor approach. The proposed approach is applied towards developing testing methods involving quantiles, which are commonly used to characterize distributions. We present and evaluate one and two sample distribution free Bayes factor type methods for testing quantiles based on indicators and smooth kernel functions. An extensive Monte Carlo study and real data examples show that the developed procedures have excellent operating characteristics for one-sample and two-sample data analysis. PMID- 29335669 TI - Portable FAIMS: Applications and Future Perspectives. AB - Miniaturized mass spectrometry (MMS) is optimal for a wide variety of applications that benefit from field-portable instrumentation. Like MMS, field asymmetric ion mobility spectrometry (FAIMS) has proven capable of providing in situ analysis, allowing researchers to bring the lab to the sample. FAIMS compliments MMS very well, but has the added benefit of operating at atmospheric pressure, unlike MS. This distinct advantage makes FAIMS uniquely suited for portability. Since its inception, FAIMS has been envisioned as a field-portable device, as it affords less expense and greater simplicity than many similar methods. Ideally, these are simple, robust devices that may be operated by non professional personnel, yet still provide adequate data when in the field. While reducing the size and complexity tends to bring with it a loss of performance and accuracy, this is made up for by the incredibly high throughput and overall convenience of the instrument. Moreover, the FAIMS device used in the field can be brought back to the lab, and coupled to a conventional mass spectrometer to provide any necessary method development and compound validation. This work discusses the various considerations, uses, and applications for portable FAIMS instrumentation, and how the future of each applicable field may benefit from the development and acceptance of such a device. PMID- 29335670 TI - Big Data and Neuroimaging. AB - Big Data are of increasing importance in a variety of areas, especially in the biosciences. There is an emerging critical need for Big Data tools and methods, because of the potential impact of advancements in these areas. Importantly, statisticians and statistical thinking have a major role to play in creating meaningful progress in this arena. We would like to emphasize this point in this special issue, as it highlights both the dramatic need for statistical input for Big Data analysis and for a greater number of statisticians working on Big Data problems. We use the field of statistical neuroimaging to demonstrate these points. As such, this paper covers several applications and novel methodological developments of Big Data tools applied to neuroimaging data. PMID- 29335671 TI - Feasibility, Acceptability, and Preliminary Effectiveness of a 4-week Mindfulness Based Cognitive Therapy Protocol for Hospital Employees. AB - Hospital employees may experience occupational stress and burnout, which negatively impact quality of life and job performance. Evidence-based interventions implemented within the hospital setting are needed to promote employees' well-being. We offered a 4-week Mindfulness-Based Cognitive Therapy group program for hospital employees, and used a mixed-methods practice-based research approach to explore feasibility, acceptability, and effects on stress and burnout. Participants were 65 hospital employees (Mage = 44.06; 85% white) who participated between September 2015 and January 2016. Participants completed validated measures of stress and burnout before and after the program, and answered open-ended satisfaction questions after the program. Groups consistently enrolled at least 10 participants, but attendance rates declined across sessions (76% at session 2 vs. 54% at session 4) due primarily to work-related scheduling conflicts. The program content was acceptable as evidenced by high perceived value (M = 9.18 out of 10), homework compliance (51% practicing at least 3 times/week), and qualitative requests for program expansion. There were large, statistically significant decreases in stress (DeltaM = 2.1, p < .001, d = .85) and medium decreases in burnout (DeltaM = .46, p = .01, d = .57), which were supported by qualitative themes of improved self-regulation and mindfulness skills, stress reduction, emotional well-being, and improved work productivity and patient care skills. Findings suggest that 4-week MBCT is acceptable and useful for hospital employees, though research is needed to identify alternate delivery methods or strategies to enhance session attendance. PMID- 29335672 TI - Seeing Roses in the Thorn Bush: Sexual Assault Survivors' Perceptions of Social Reactions. AB - Objective: After sexual assault, survivors often reach to others for support and receive a range of reactions. Although these reactions have been characterized by researchers as positive (e.g., emotional support) or negative (e.g., victim blaming), survivors vary in their perceptions in ways that do not always match this framework. The goal of this research was to examine the degree to which designations of reactions as "positive" or "negative" fits across types of reactions and explain instances of mismatch between these designations and survivors' perceptions. Method: We conducted a qualitative analysis of interviews with 26 survivors of sexual assault to identify themes in their perceptions of social reactions. Results: Although social reactions were generally perceived in a manner that matched researcher categorizations, there was significant variation. Perceptions could be characterized in terms of whether the reaction felt comfortable/soothing, consistent with survivors' needs/hopes/expectations, and helpful in the long term. The closeness of survivors' relationships with responders, the degree to which they were impacted by the assault, and the presence of other social reactions explained variation from researcher designations of reaction types. Conclusion: This study clarifies the considerations that survivors make when evaluating social reactions and what accounts for discrepant perceptions of these reactions; in particular, they highlight that there is no "one size fits all" reaction to survivors of sexual assault and the context in which reactions occur may affect how they are seen. PMID- 29335673 TI - Desistance and Severity of Alcohol Use Disorder: A Lifespan-Developmental Investigation. AB - Key to an understanding of alcohol use disorder (AUD) are the drinking-related reductions that begin in young adulthood and continue throughout the adult lifespan. Research is needed to precisely characterize the form of these reductions, including possible developmental differences across the lifespan. Using U.S.-representative data, we estimated multiple-group Markov models characterizing longitudinal transitions among five drinking statuses and differences in transition patterns across six adult age periods. While past research indicates relative developmental stability in overall AUD-desistance rates, we found far higher rates of Severe-AUD desistance in young adulthood relative to later ages. Especially considering the dramatic change reflected by Severe-AUD desistance (from 6+ symptoms to 0-1 symptoms), this result indicates a substantial developmental shift, with Severe-AUD-desistance rates peaking at 43 50% across ages 25-34 and then dropping to 22-24% across ages 35-55. We discuss implications regarding practical significance of young-adult "maturing out" and predictions regarding lifespan variability in desistance mechanisms. PMID- 29335675 TI - Exit, cohesion, and consensus: social psychological moderators of consensus among adolescent peer groups. AB - Virtually all social diffusion work relies on a common formal basis, which predicts that consensus will develop among a connected population as the result of diffusion. In spite of the popularity of social diffusion models that predict consensus, few empirical studies examine consensus, or a clustering of attitudes, directly. Those that do either focus on the coordinating role of strict hierarchies, or on the results of online experiments, and do not consider how consensus occurs among groups in situ. This study uses longitudinal data on adolescent social networks to show how meso-level social structures, such as informal peer groups, moderate the process of consensus formation. Using a novel method for controlling for selection into a group, I find that centralized peer groups, meaning groups with clear leaders, have very low levels of consensus, while cohesive peer groups, meaning groups where more ties hold the members of the group together, have very high levels of consensus. This finding is robust to two different measures of cohesion and consensus. This suggests that consensus occurs either through central leaders' enforcement or through diffusion of attitudes, but that central leaders have limited ability to enforce when people can leave the group easily. PMID- 29335676 TI - Behavioral Assays to Study Oxygen and Carbon Dioxide Sensing in Caenorhabditis elegans. AB - Animals use behavioral strategies to seek optimal environments. Population behavioral assays provide a robust means to determine the effect of genetic perturbations on the ability of animals to sense and respond to changes in the environment. Here, we describe a C. elegans population behavioral assay used to measure locomotory responses to changes in environmental oxygen (O2) and carbon dioxide (CO2) concentrations. These behavioral assays are high-throughput and enable examination of genetic, neuronal and circuit function. PMID- 29335677 TI - Two-dimensional imaging and modification of nanophotonic resonator modes using a focused ion beam. AB - High-resolution imaging of optical resonator modes is a key step in the development and characterization of nanophotonic devices. Many sub-wavelength mode-imaging techniques have been developed using optical and electron beam excitation-each with its own limitations in spectral and spatial resolution. Here, we report a 2D imaging technique using a pulsed, low-energy focused ion beam of Li+ to probe the near-surface fields inside photonic resonators. The ion beam locally modifies the resonator structure, causing temporally varying spectroscopic shifts of the resonator. We demonstrate this imaging technique on several optical modes of silicon microdisk resonators by rastering the ion beam across the disk surface and extracting the maximum mode shift at the location of each ion pulse. A small shift caused by ion beam heating is also observed and is independently extracted to directly measure the thermal response of the device. This technique enables visualization of the splitting of degenerate modes into spatially-resolved standing waves and permits persistent optical mode editing. Ion beam probing enables minimally perturbative, in operando imaging of nanophotonic devices with high resolution and speed. PMID- 29335674 TI - Noble metal nanoparticles in biosensors: recent studies and applications. AB - The aim of this review is to cover advances in noble metal nanoparticle (MNP) based biosensors and to outline the principles and main functions of MNPs in different classes of biosensors according to the transduction methods employed. The important biorecognition elements are enzymes, antibodies, aptamers, DNA sequences, and whole cells. The main readouts are electrochemical (amperometric and voltametric), optical (surface plasmon resonance, colorimetric, chemiluminescence, photoelectrochemical, etc.) and piezoelectric. MNPs have received attention for applications in biosensing due to their fascinating properties. These properties include a large surface area that enhances biorecognizers and receptor immobilization, good ability for reaction catalysis and electron transfer, and good biocompatibility. MNPs can be used alone and in combination with other classes of nanostructures. MNP-based sensors can lead to significant signal amplification, higher sensitivity, and great improvements in the detection and quantification of biomolecules and different ions. Some recent examples of biomolecular sensors using MNPs are given, and the effects of structure, shape, and other physical properties of noble MNPs and nanohybrids in biosensor performance are discussed. PMID- 29335678 TI - Does mental context drift or shift? AB - Theories of episodic memory have generally proposed that individual memory traces are linked together by a representation of context that drifts slowly over time. Recent data challenge the notion that contextual drift is always slow and passive. In particular, changes in one's external environment or internal model induce discontinuities in memory that are reflected in sudden changes in neural activity, suggesting that context can shift abruptly. Furthermore, context change effects are sensitive to top-down goals, suggesting that contextual drift may be an active process. These findings call for revising models of the role of context in memory, in order to account for abrupt contextual shifts and the controllable nature of context change. PMID- 29335679 TI - Deep Tissue Imaging with Multiphoton Fluorescence Microscopy. AB - We present a review of imaging deep-tissue structures with multiphoton microscopy. We examine the effects of light scattering and absorption due to the optical properties of biological sample and identify 1,300 nm and 1,700 nm as ideal excitation wavelengths. We summarize the availability of fluorophores for multiphoton microscopy as well as ultrafast laser sources to excite available fluorophores. Lastly, we discuss the applications of multiphoton microscopy for neuroscience. PMID- 29335680 TI - Flows, scaling, and the control of moment hierarchies for stochastic chemical reaction networks. AB - Stochastic chemical reaction networks (CRNs) are complex systems that combine the features of concurrent transformation of multiple variables in each elementary reaction event and nonlinear relations between states and their rates of change. Most general results concerning CRNs are limited to restricted cases where a topological characteristic known as deficiency takes a value 0 or 1, implying uniqueness and positivity of steady states and surprising, low-information forms for their associated probability distributions. Here we derive equations of motion for fluctuation moments at all orders for stochastic CRNs at general deficiency. We show, for the standard base case of proportional sampling without replacement (which underlies the mass-action rate law), that the generator of the stochastic process acts on the hierarchy of factorial moments with a finite representation. Whereas simulation of high-order moments for many-particle systems is costly, this representation reduces the solution of moment hierarchies to a complexity comparable to solving a heat equation. At steady states, moment hierarchies for finite CRNs interpolate between low-order and high-order scaling regimes, which may be approximated separately by distributions similar to those for deficiency-zero networks and connected through matched asymptotic expansions. In CRNs with multiple stable or metastable steady states, boundedness of high order moments provides the starting condition for recursive solution downward to low-order moments, reversing the order usually used to solve moment hierarchies. A basis for a subset of network flows defined by having the same mean-regressing property as the flows in deficiency-zero networks gives the leading contribution to low-order moments in CRNs at general deficiency, in a 1/n expansion in large particle numbers. Our results give a physical picture of the different informational roles of mean-regressing and non-mean-regressing flows and clarify the dynamical meaning of deficiency not only for first-moment conditions but for all orders in fluctuations. PMID- 29335681 TI - NASH-RELATED CIRRHOSIS: AN OCCULT LIVER DISEASE BURDEN. PMID- 29335682 TI - Robust Dynamic Risk Prediction with Longitudinal Studies. AB - Providing accurate and dynamic age-specific risk prediction is a crucial step in precision medicine. In this manuscript, we introduce an approach for estimating the tau-year age-specific absolute risk directly via a flexible varying coefficient model. The approach facilitates the utilization of predictors varying over an individual's lifetime. By using a nonparametric inverse probability weighted kernel estimating equation, the age-specific effects of risk factors are estimated without requiring the specification of the functional form. The approach allows borrowing information across individuals of similar ages, and therefore provides a practical solution for situations where the longitudinal information is only measured sparsely. We evaluate the performance of the proposed estimation and inference procedures with numerical studies, and make comparisons with existing methods in the literature. We illustrate the performance of our proposed approach by developing a dynamic prediction model using data from the Framingham Study. PMID- 29335683 TI - Sex Differences in Salivary Parameters of Caries Susceptibility in Healthy Individuals. AB - PURPOSE: To investigate salivary parameters of caries susceptibility in men and women in order to identify potential variations due to sexual dimorphism. MATERIALS AND METHODS: A total of 46 female and 24 male patients, aged 18-40 years, participated in this study. Unstimulated saliva was collected for the evaluation of flow rate, pH, secretory IgA, Snyder test scores, and Streptococcus mutans counts (confirmed by PCR assay). Statistical analysis included the Mann Whitney, Kruskal-Wallis and Bonferroni tests, one-way ANOVA, and the Spearman correlation at a 5% significance level, followed by a general linear model and multiple linear regressions. RESULTS: Female participants presented lower salivary pH values compared to males (p < 0.05), and different patterns of correlation among salivary parameters were found in men (p < 0.05) and women (p < 0.001). When comparing the variables according to Snyder test scores in men and women, there was a significant difference for S. mutans levels in the male group, and for pH and IgA in the female group (p < 0.05). Gender was found to be a predictor of salivary flow (R2 = 0.05; p < 0.05) and pH (R2 = 0.16; p < 0.001). In the female group, multiple regression showed several predictors for salivary flow rate, pH, IgA and Snyder test scores (p < 0.05), whereas no predictor was found in the male group (p > 0.05). CONCLUSION: Different salivary patterns were observed in men and women, thus the implications of such findings for caries susceptibility require further investigation. PMID- 29335684 TI - Association Between Self-Perceived Oral Health and Clinical Indicators. AB - PURPOSE: To determine whether self-perceived oral health impact and satisfaction measure oral health in the same way as do clinical indicators in adults and older adults. MATERIALS AND METHODS: The population consisted of adult patients aged 20 to 59 years receiving care at "Juan Pablo II" Health Care Centre and older adult patients aged 60 or more years from the home for the elderly "Virgen del Amor Hermoso", Lima, Peru. The indices Oral Impacts on Daily Performance (OIDP) and Oral Satisfaction Scale of 0-10 (OSS 0-10) were used to evaluate perceived impact of and satisfaction with oral health. In addition, the following internationally validated criteria established by the World Health Organization (WHO) were used as clinical indicators: Decayed-Missing-Filled Teeth (DMFT) Index, O'Leary's Hygiene Index, Community Periodontal Index, Motivation to Hygiene Index, Denture Situation Index, Need for Denture Index, Denture Hygiene Index and Oral Mucosal Lesion Index. RESULTS: Forty-four adults and 53 older adults participated. OIDP showed that the greatest perceived difficulty in daily performance was "eating and enjoying food" (adults: 77.3% and older adults: 79.2%). The OSS 0-10 showed that among adults, 43.1% were dissatisfied, 20.5% were neutral and 36.4% were satisfied, while among older adults, 45.3% were dissatisfied, 22.6% were neutral and 32.1% were satisfied. A statistically significant association was found between OSS 0-10 and 1. DMFT index in adults; 2. upper denture situation in older adults; and 3. denture hygiene in older adults. A highly significant inverse linear correlation was found between OIDP and OSS 0-10 in adults and older adults. CONCLUSION: The perceived impact of oral health does not have a demonstrable association with oral health problems when used as an instrument for measuring oral health status, whereas perceived satisfaction with oral health has a better association with the clinical indicators. PMID- 29335685 TI - Can Coloured Fluoride Gel Stain Demineralised Enamel? AB - PURPOSE: This study evaluated the colour changes of demineralized enamel after treatment with coloured fluoride gel. MATERIALS AND METHODS: Enamel blocks obtained from bovine incisors were submitted to artificial caries induction by pH cycling followed by fluoride gel applications (2% sodium fluoride, pH 6.8) using a colourless gel (control group), pink or blue gels. The enamel optical properties were evaluated by spectrophotometry, using the CIE L*a*b* system at baseline (sound enamel), after artificial caries induction (demineralised enamel) and after each of the five fluoride gel applications (weekly intervals). Changes in enamel optical properties (DeltaE) were analysed by two-way ANOVA and Tukey's test (alpha = 0.05). RESULTS: No significant differences were found among fluoride gels (p = 0.476) regardless of the presence of pigments in the gel. DeltaE values were significantly different (p < 0.001) between baseline evaluation and treated enamel (after fluoride gel application). CONCLUSION: This in vitro study demonstrated that colour changes in enamel do not occur during fluoride gel treatment, regardless of the presence or absence of coloured pigments in the gel. PMID- 29335686 TI - Synthetic Hydroxyapatite as a Biomimetic Oral Care Agent. AB - PURPOSE: Human tooth enamel consists mostly of minerals, primarily hydroxyapatite, Ca10(PO4)6(OH)2, and thus synthetic hydroxyapatite can be used as a biomimetic oral care agent. This review describes the synthesis and characterization of hydroxyapatite from a chemist's perspective and provides an overview of its current use in oral care, with a focus on dentin hypersensitivity, caries, biofilm management, erosion, and enamel lesions. SOURCES: Reviews and original research papers published in English and German were included. RESULTS: The efficiency of synthetic hydroxyapatite in occluding open dentin tubules, resulting in a protection for sensitive teeth, has been well documented in a number of clinical studies. The first corresponding studies on caries, biofilm management and erosion have provided evidence for a positive effect of hydroxyapatite either as a main or synergistic agent in oral care products. However, more in situ and in vivo studies are needed due to the complexity of the oral milieu and to further clarify existing results. CONCLUSIONS: Due to its biocompatibility and similarity to biologically formed hydroxyapatite in natural tooth enamel, synthetic hydroxyapatite is a promising biomimetic oral care ingredient that may extend the scope of preventive dentistry. PMID- 29335687 TI - Structure of the Bacterial Community in Different Stages of Early Childhood Caries. AB - PURPOSE: To characterise in vivo the structure of bacterial communities in decayed and sound primary teeth. MATERIALS AND METHODS: Samples of biofilms were collected from three groups of patients with complete and exclusively primary dentition (n = 45): G1: sound teeth (n = 15); G2: enamel lesion (n = 15); G3: dentin lesion (n = 15). DNA was extracted (CTAB 2%) from the biofilm, the partial 16S rRNA gene was amplified with Bacteria Universal Primers (BA338fGC - UN518r) and subjected to DGGE (denaturing gradient gel electrophoresis). Multidimensional scaling and ANOSIM (analysis of similarity) were employed to determine the structure of the bacterial communities. The amplicon richness was determined by averaging amplicons, with the differences between treatments determined with ANOVA, while means were compared using Tukey's test (p < 0.05). RESULTS: Compared to sound teeth, a greater variety of bacterial communities was found in decayed teeth. Despite the differences between the bacterial communities of sound teeth and decayed teeth, the Venn diagram showed that the samples had 38 amplicons in common. Greater amplicon richness was observed in samples of decayed teeth (enamel: 20.5 +/- 2.7; dentin: 20.1 +/- 2.8) compared with the sound samples (12.0 +/- 4.3) (p <0.05), indicating enhanced growth for specific groups of bacteria on decayed teeth. CONCLUSION: Although there is less bacterial diversity on sound than ECC-decayed teeth, the bacterial communities are very similar. PMID- 29335688 TI - Multiple invasive cervical resorption and celiac disease: A case report. AB - Multiple invasive cervical resorption (MICR) is a rare disease of unknown etiology. A case of a patient with MICR of six teeth, with low vitamin D3 level detected, is presented. Applied surgical and general treatments were only partially effective, as they failed to stop the resorption, although the parameters of calcium-phosphate management appreciably improved, and secondary hyperparathyroidism was successfully resolved. PMID- 29335689 TI - Psoriasis: A review of systemic comorbidities and dental management considerations. AB - OBJECTIVE: There is a growing body of evidence to substantiate that cutaneous psoriasis is associated with an increased risk for a multitude of systemic disorders. Although there is an extensive array of medical publications regarding psoriasis, the dental literature has almost exclusively been focused on erythema migrans and occasionally, with oral psoriatic mucositis, chronic periodontitis, and psoriatic arthritis of the temporomandibular joint. This report will review the diversity of systemic comorbidities, namely cardiovascular, neurologic, renal, liver, gastrointestinal, pulmonary, endocrine, ocular, arthritic (including temporomandibular joint), nail, cutaneous, and psychologic (including suicide) disorders; neoplasia; infection; dyslipidemia; vitamin D deficiency; substance abuse; higher mortality; and oral mucosal involvement. A discussion of the oral and maxillofacial relevance of these comorbidities is also provided. METHOD AND MATERIALS: The author conducted a PubMed search from 1975 through August 2017 for articles on comorbidities associated with psoriasis. For select topics, some relevant case reports were examined. RESULTS: A search on PubMed yielded almost 44,000 articles on psoriasis and nearly 1,300 with the keywords psoriasis and comorbidities. Articles selected for discussion consisted mostly of recent systematic reviews and meta-analyses. Case reports were included when there was a restricted number of psoriatic patients with a particular comorbidity. CONCLUSION: When a patient presents with a history of psoriasis, the dental practitioner should expand the medical history process to ascertain possible correlated diseases. Information gleaned from this interview process may prompt the attending dental clinician to seek consultation with the patient's physician to gain greater insight to the severity of any prevailing comorbidities and engage in discussions for possible modifications in dental management. Knowledge of psoriatic comorbidities and their possible impact on dental care may improve clinical outcomes. PMID- 29335690 TI - Ni(OH)2-Fe2P hybrid nanoarray for alkaline hydrogen evolution reaction with superior activity. AB - It is highly attractive to develop efficient hydrogen evolution reaction (HER) electrocatalysts under alkaline conditions. In this communication, we report the preparation of amorphous Ni(OH)2 decorated Fe2P nanoarray on Ti mesh (Ni(OH)2 Fe2P/TM) via electrodeposition. As a 3D electrode for the hydrogen evolution reaction, such Ni(OH)2-Fe2P/TM demonstrates superior catalytic activity. Moreover, the as-prepares electrocatalyst requires an overpotential of only 76 mV to drive a current density of 10 mA cm-2, which is 94 mV less than that for Fe2P/TM. It also shows strong long-term electrochemical durability with its catalytic activity being maintained for at least 20 h. PMID- 29335691 TI - Size-dependent formation of membrane nanotubes: continuum modeling and molecular dynamics simulations. AB - Membrane nanotubes play important functional roles in numerous cell activities such as cellular transport and communication. By exerting an external pulling force over a finite region in a membrane patch, here we investigate the size dependence of the membrane nanotube formation under the continuum and atomistic modeling frameworks. It is shown that the membrane undergoes a discontinuous shape transition as the size of the pulling region and the membrane tension increase. A formula characterizing the nonlinear relationship between the maximum static pulling force and pulling size is identified. During the membrane extraction, lipids in the upper and lower leaflets exhibit different behaviors of structural rearrangements. Moreover, our computational simulations indicate that the steady state pulling force increases linearly with the pulling velocity as well as the size of the pulling region. PMID- 29335692 TI - Marine natural products. AB - Covering: 2016. Previous review: Nat. Prod. Rep., 2017, 34, 235-294This review covers the literature published in 2016 for marine natural products (MNPs), with 757 citations (643 for the period January to December 2016) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1277 in 432 papers for 2016), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. PMID- 29335693 TI - Crystal structures of uranyl complexes with isobutyrate and isovalerate anions. AB - Single crystals of Na[(UO2)(i-C3H7COO)3].0.7H2O (I), Cs[(UO2)(i-C3H7COO)3] (II) and (NH4)[(UO2)(i-C4H9COO)3] (III) were obtained via isothermal evaporation and their structures were solved using X-ray diffraction techniques. Even though the ligands are branched, bulky and spatial, many carbon and hydrogen atoms are still disordered in these crystal structures at low temperature. A new type of Na coordination is observed for the first time for this family of compounds, proposing high sensitivity of compound I to humidity. Depolymerization of the metal-oxygen frameworks for the new compounds is compared with the known ones. Coordination sequences of sodium/cesium and uranyl complexes with aliphatic monocarboxylate ions are calculated to show different crystal-chemical function of crystallographically independent atoms. As there are analogous compounds to the title ones with straight-chain ligands, such groups of similar compounds with single varying parameters are very advantageous for establishing correlations between composition and crystal structure. PMID- 29335694 TI - The Seventh Biennial Berry Health Benefits Symposium. AB - Research advancing current scientific understanding of the health benefits of berries continues to increase. The Berry Health Benefits Symposium (BHBS) is a biennial meeting highlighting the most recent berry health benefits research from all over the world. Pismo Beach, California was the venue for the seventh biennial BHBS in 2017, and featured oral invited papers on heart health and healthy aging, gut/microbiome health, brain aging, inflammation, cancer prevention, berry special topics, technology and chemistry. These thematic health areas, while not exhaustive, characterize the state of berry health benefits science. The advancing field now encompasses human efficacy trials along with the most recent animal model and cell culture work elucidating mechanisms of action. Similar to past meetings, the research findings at the 2017 BHBS primarily focused on blackberries, blueberries, red raspberries, black raspberries, cranberries, and strawberries. However, research on other berry fruits, such as chokeberry (aronia berry), cloudberry, and bilberry were also covered. The BHBS continues to be a leading forum for interactions between scientists and berry industry stakeholders. The cluster of papers in this issue represents a snapshot of presentations at the 2017 BHBS, which support the positive biological effects of berries on human health and disease risk reduction. PMID- 29335695 TI - Synthesis of garlic skin-derived 3D hierarchical porous carbon for high performance supercapacitors. AB - A three-dimensional hierarchical porous carbon is synthesized via a facile chemical activation route with garlic skin as the precursor and KOH as the activating agent. The as-obtained carbon presents a high specific surface area of 2818 m2 g-1 and a hierarchical porous architecture containing macroporous frameworks, mesopores (2-4 nm), and micropores (0.6-1.0 nm). As the electrode material for a supercapacitor, due to its unique interconnected porous structure, this garlic skin-derived carbon exhibits excellent electrochemical performance and cycling stability. At a current density of 0.5 A g-1, the capacitance is up to 427 F g-1 (162 F cm-3). Even at a high current density of 50 A g-1, the capacitance can be maintained to a high value of 315 F g-1 (120 F cm-3). After charging-discharging at a current density of 4.5 A g-1 for 5000 cycles, the capacitance retention is as high as 94%. The results suggest that this garlic skin-derived 3D hierarchical porous carbon is a promising electrode material for high-performance supercapacitors. PMID- 29335696 TI - Structurally and electronically modulated spin interaction of transient biradicals in two photon-gated stepwise photochromism. AB - The development of two-photon induced photochromic compounds is important for advanced photoresponsive materials. The utilization of the long-lived transient states or species for two-photon absorption is one of the efficient strategies to realize the advanced photochemical behavior beyond a one-photon photochemical reaction. We have synthesized bi-photochromic compounds composed of two photochromic phenoxyl-imidazolyl radical complex units. The biphotochromic compounds generate two biradical units when the two photochromic units absorb photons with a stepwise manner. The interaction between the two biradicals through the central bridging phenyl ring is the key feature to control the stepwise photochromic reaction. Here, we introduced aromatic spacers in order to modulate the distance and the dihedral angle between the biradical units. The color and the rate of the thermal back reaction of the stepwise photochromism can be regulated by the control of the central bridging part. These results give important insights to develop desirable advanced photoresponsive compounds. PMID- 29335697 TI - Photodissociation dynamics of bromoiodomethane from the first and second absorption bands. A combined velocity map and slice imaging study. AB - The photodissociation dynamics of bromoiodomethane (CH2BrI) have been investigated at the maximum of the first A and second A' absorption bands, at 266 and 210 nm excitation wavelengths, respectively, using velocity map and slice imaging techniques in combination with a probe detection of both iodine and bromine fragments, I(2P3/2), I*(2P1/2), Br(2P3/2) and Br*(2P1/2) via (2 + 1) resonance enhanced multiphoton ionization. Experimental results, i.e. translational energy and angular distributions, are reported and discussed in conjunction with high level ab initio calculations of potential energy curves and absorption spectra. The results indicate that in the A-band, direct dissociation through the 5A' excited state leads to the I(2P3/2) channel while I*(2P1/2) atoms are produced via the 5A' -> 4A'/4A'' nonadiabatic crossing. The presence of Br and Br* fragments upon excitation to the A-band is attributed to indirect dissociation via a curve crossing between the 5A' with upper excited states such as the 9A'. The A'-band is characterized by a strong photoselectivity leading exclusively to the Br(2P3/2) and Br*(2P1/2) channels, which are likely produced by dissociation through the 9A' excited state. Avoided crossings between several excited states from both the A and A' bands entangle however the possible reaction pathways. PMID- 29335699 TI - Michael addition of carbonyl compounds to nitroolefins under the catalysis of new pyrrolidine-based bifunctional organocatalysts. AB - Novel bifunctional pyrrolidine-based organocatalysts for the asymmetric Michael addition of carbonyl compounds to nitroolefins have been synthesised from homoallylamines, which are easily obtained from (R)-glyceraldehyde as a chiral precursor. Under optimal reaction conditions, these bifunctional organocatalysts showed a high catalytic efficiency (almost quantitative yield in most cases) and stereoselectivity in the Michael addition reactions of a variety of aldehydes (up to 98 : 2 dr and 97% ee) and ketones (up to 98 : 2 dr and 99% ee) to nitroolefins. PMID- 29335698 TI - Absorbance enhancement of aptamers/GNP enables sensitive protein detection in rat brains. AB - An absorbance enhanced probe based on gold nanoparticles (GNPs) was proposed for a protein assay in the cerebrospinal fluid of a rat brain. The GNPs, assembled with two aptamers by proximity ligation, have high anti-salt properties, and good selectivity and response toward proteins, such as interferon-gamma, in the brain. PMID- 29335701 TI - A mononuclear manganese(iii)-hydroperoxo complex: synthesis by activating dioxygen and reactivity in electrophilic and nucleophilic reactions. AB - We report the synthesis of manganese(iii)-peroxo (MnIII(O2)) and manganese(iii) hydroperoxo (MnIII(O2H)) complexes by activating dioxygen (O2) and the amphoteric reactivity of the Mn(iii)-hydroperoxo complex in electrophilic and nucleophilic reactions. PMID- 29335702 TI - Ultrasmall Sn nanoparticles embedded in spherical hollow carbon for enhanced lithium storage properties. AB - We here report on the preparation and Li-ion battery anode application of ultrasmall Sn nanoparticles (~5 nm) uniformly embedded in spherical hollow carbon. The novel Sn-C composite shows a high Li-storage capacity (743 mA h g-1 at 0.5 A g-1) with unprecedentedly high cyclic stability (92.1% capacity retention after 6000 cycles at 4 A g-1). PMID- 29335704 TI - Photoexcited charge carrier dynamics of interconnected TiO2 nanoparticles: evidence of enhancement of charge separation at anatase-rutile particle interfaces. AB - The charge carrier kinetics of hydrothermally treated TiO2 nanoparticles, consisting of interconnected anatase and rutile crystallographic forms, was investigated using a heterodyne transient grating technique to obtain direct evidence of the enhancement of charge separation efficiency. We found that surface recombination arising from trapped electrons was retarded, compared with that of P25 TiO2 nanoparticles, with the aid of an increase of particle interfaces. This means that the charge separation efficiency of hydrothermally treated TiO2 nanoparticles is higher than that of P25 TiO2 nanoparticles, to which the enhanced photocatalytic performance of the hydrothermally treated TiO2 nanoparticles could be attributed. PMID- 29335705 TI - Synthesis of 2,5-disubstituted oxazoles via cobalt(iii)-catalyzed cross-coupling of N-pivaloyloxyamides and alkynes. AB - An efficient synthesis of 2,5-disubstituted oxazoles via Co(iii) catalysis is described herein. The synthesis is achieved under mild conditions through [3+2] cycloaddition of N-pivaloyloxyamides and alkynes. The reaction operates through an internal oxidation pathway and features a very broad substrate scope. The one step synthesis of natural products such as texamine and balsoxin has been demonstrated via this protocol. PMID- 29335709 TI - Elongated phase separation domains in spin-cast polymer blend thin films characterized using a panoramic image. AB - Polymer thin films with micro/nano-structures can be prepared by a solvent evaporation induced phase separation process via spin-casting a polymer blend, where the elongated phase separation domains are always inevitable. The striation defect, as a thickness nonunifomity in spin-cast films, is generally coexistent with the elongated domains. Herein, the morphologies of polymer blend thin films are recorded from the spin-cast center to the edge in a panoramic view. The elongated domains are inclined to appear at the ridge regions of striations with increasing radial distance and align radially, exhibiting a coupling between the phase separation morphology and the striation defect that may exist. We demonstrate that the formation of elongated domains is not attributed to shape deformation, but is accomplished in situ. A possible model to describe the initiation and evolution of the polymer blend phase separation morphology during spin-casting is proposed. PMID- 29335711 TI - White Blood Cell BRCA1 Promoter Methylation Status and Ovarian Cancer Risk: A Perspective. PMID- 29335710 TI - Continuous-flow trapping and localized enrichment of micro- and nano-particles using induced-charge electrokinetics. AB - In this work, we report an effective microfluidic technique for continuous-flow trapping and localized enrichment of micro- and nano-particles by using induced charge electrokinetic (ICEK) phenomena. The proposed technique utilizes a simple microfluidic device that consists of a straight microchannel and a conducting strip attached to the bottom wall of the microchannel. Upon application of the electric field along the microchannel, the conducting strip becomes polarized to introduce two types of ICEK phenomena, the ICEK flow vortex and particle dielectrophoresis, and they are identified by a theoretical model formulated in this study to be jointly responsible for the trapping of particles over the edge of the conducting strip. Our experiments showed that successful trapping requires an AC/DC combined electric field: the DC component is mainly to induce electroosmotic flow for transporting particles to the trapping location; the AC component induces ICEK phenomena over the edge of the conducting strip for particle trapping. The performance of the technique is examined with respect to the applied electric voltage, AC frequency and the particle size. We observed that the trapped particles form a narrow band (nearly a straight line) defined by the edge of the conducting strip, thereby allowing localized particle enrichment. For instance, we found that under certain conditions a high particle enrichment ratio of 200 was achieved within 30 seconds. We also demonstrated that the proposed technique was able to trap particles from several microns down to several tens of nanometer. We believe that the proposed ICEK trapping would have great flexibility that the trapping location can be readily varied by controlling the location of the patterned conducting strip and multiple-location trapping can be expected with the use of multiple conducting strips. PMID- 29335712 TI - White Blood Cell BRCA1 Promoter Methylation Status and Ovarian Cancer Risk. AB - Background: The role of normal tissue gene promoter methylation in cancer risk is poorly understood. Objective: To assess associations between normal tissue BRCA1 methylation and ovarian cancer risk. Design: 2 case-control (initial and validation) studies. Setting: 2 hospitals in Norway (patients) and a population based study (control participants). Participants: 934 patients and 1698 control participants in the initial study; 607 patients and 1984 control participants in the validation study. Measurements: All patients had their blood sampled before chemotherapy. White blood cell (WBC) BRCA1 promoter methylation was determined by using methylation-specific quantitative polymerase chain reaction, and the percentage of methylation-positive samples was compared between population control participants and patients with ovarian cancer, including the subgroup with high-grade serous ovarian cancer (HGSOC). Results: In the initial study, BRCA1 methylation was more frequent in patients with ovarian cancer than control participants (6.4% vs. 4.2%; age-adjusted odds ratio [OR], 1.83 [95% CI, 1.27 to 2.63]). Elevated methylation, however, was restricted to patients with HGSOC (9.6%; OR, 2.91 [CI, 1.85 to 4.56]), in contrast to 5.1% and 4.0% of patients with nonserous and low-grade serous ovarian cancer (LGSOC), respectively. These findings were replicated in the validation study (methylation-positive status in 9.1% of patients with HGSOC vs. 4.3% of control participants-OR, 2.22 [CI 1.40 to 3.52]-4.1% of patients with nonserous ovarian cancer, and 2.7% of those with LGSOC). The results were not influenced by tumor burden, storage time, or WBC subfractions. In separate analyses of young women and newborns, BRCA1 methylation was detected in 4.1% (CI, 1.8% to 6.4%) and 7.0% (CI, 5.0% to 9.1%), respectively. Limitations: Patients with ovarian cancer were recruited at the time of diagnosis in a hospital setting. Conclusion: Constitutively normal tissue BRCA1 promoter methylation is positively associated with risk for HGSOC. Primary Funding Source: Norwegian Cancer Society. PMID- 29335713 TI - Risk for Arterial and Venous Thrombosis in Patients With Myeloproliferative Neoplasms: A Population-Based Cohort Study. AB - Background: Patients with myeloproliferative neoplasms (MPNs) are reported to be at increased risk for thrombotic events. However, no population-based study has estimated this excess risk compared with matched control participants. Objective: To assess risk for arterial and venous thrombosis in patients with MPNs compared with matched control participants. Design: Matched cohort study. Setting: Population-based setting in Sweden from 1987 to 2009, with follow-up to 2010. Patients: 9429 patients with MPNs and 35 820 matched control participants. Measurements: The primary outcomes were rates of arterial and venous thrombosis. Flexible parametric models were used to calculate hazard ratios (HRs) and cumulative incidence with 95% CIs. Results: The HRs for arterial thrombosis among patients with MPNs compared with control participants at 3 months, 1 year, and 5 years were 3.0 (95% CI, 2.7 to 3.4), 2.0 (CI, 1.8 to 2.2), and 1.5 (CI, 1.4 to 1.6), respectively. The corresponding HRs for venous thrombosis were 9.7 (CI, 7.8 to 12.0), 4.7 (CI, 4.0 to 5.4), and 3.2 (CI, 2.9 to 3.6). The rate was significantly elevated across all age groups and was similar among MPN subtypes. The 5-year cumulative incidence of thrombosis in patients with MPNs showed an initial rapid increase followed by gentler increases during follow-up. The HR for venous thrombosis decreased during more recent calendar periods. Limitation: No information on individual laboratory results or treatment. Conclusion: Patients with MPNs across all age groups have a significantly increased rate of arterial and venous thrombosis compared with matched control participants, with the highest rates at and shortly after diagnosis. Decreases in the rate of venous thrombosis over time likely reflect advances in clinical management. Primary Funding Source: The Cancer Research Foundations of Radiumhemmet, Blodcancerfonden, the Swedish Research Council, the regional agreement on medical training and clinical research between Stockholm County Council and Karolinska Institutet, the Adolf H. Lundin Charitable Foundation, and Memorial Sloan Kettering Cancer Center. PMID- 29335714 TI - Guideline: Experts recommend a single dose of oral steroids for pain relief in acute sore throat. PMID- 29335715 TI - In postmenopausal women with osteoporosis, romosozumab followed by alendronate reduced fractures vs alendronate alone. PMID- 29335716 TI - Pooled RCTs: In postmenopausal women, hormone therapy for 6 to 7 years did not affect mortality at 18 years. PMID- 29335717 TI - Pooled RCTs: Reanalysis accounting for screening intensity suggests that screening reduces prostate cancer mortality. PMID- 29335718 TI - Adding patent foramen ovale closure to antiplatelet drugs reduced ischemic stroke after cryptogenic stroke. PMID- 29335719 TI - Adding patent foramen ovale closure to antiplatelet therapy reduced stroke after cryptogenic stroke. PMID- 29335720 TI - Review: Newer second-line drugs for diabetes are not more cost-effective than sulfonylureas. PMID- 29335721 TI - Review: In suspected influenza, some rapid tests have high sensitivity and high specificity for detecting infection. PMID- 29335722 TI - Review: In adults, contrast-enhanced CT is not linked to acute kidney injury or mortality vs noncontrast CT. PMID- 29335724 TI - Correction: Benefits and Harms of Intensive Blood Pressure Treatment in Adults Aged 60 Years or Older. PMID- 29335723 TI - Review: In primary care, CRP testing, shared decision making, and procalcitonin reduce antibiotic prescribing for ARI. PMID- 29335725 TI - Growth and Rupture Risk of Small Unruptured Intracranial Aneurysms. PMID- 29335726 TI - Growth and Rupture Risk of Small Unruptured Intracranial Aneurysms. PMID- 29335727 TI - Presence of Human Hepegivirus-1 in a Cohort of People Who Inject Drugs. PMID- 29335728 TI - Presence of Human Hepegivirus-1 in a Cohort of People Who Inject Drugs. PMID- 29335729 TI - Presence of Human Hepegivirus-1 in a Cohort of People Who Inject Drugs. PMID- 29335731 TI - Changes in Hospital-Physician Affiliations in U.S. Hospitals. PMID- 29335730 TI - Changes in Hospital-Physician Affiliations in U.S. Hospitals. PMID- 29335732 TI - Changes in Hospital-Physician Affiliations in U.S. Hospitals. PMID- 29335733 TI - Changes in Hospital-Physician Affiliations in U.S. Hospitals. PMID- 29335734 TI - Two Doctors Meet. PMID- 29335735 TI - Let the Sun Shine In! An Adventure in Open Payments. PMID- 29335736 TI - Web Exclusives. Annals for Hospitalists Inpatient Notes - Modernizing Rounds-Why It's Time to Redesign Our Hospital Practice. PMID- 29335737 TI - Shedding New Light on the Magnitude of Thrombosis Risk in Patients With Myeloproliferative Neoplasms. PMID- 29335738 TI - Remission of Psoriasis After Treatment of Chronic Hepatitis C Virus Infection With Direct-Acting Antivirals. PMID- 29335739 TI - A Postzygotic SMO Mutation Caused the Original Case of Happle-Tinschert Syndrome. PMID- 29335740 TI - Painful Papules on the Hand: A Quiz. PMID- 29335741 TI - Methotrexate Treatment for Pityriasis Rubra Pilaris: A Case Series and Literature Review. AB - Treatment recommendations for pityriasis rubra pilaris (PRP) are based solely on case reports and small case series, as to-date no randomized controlled trials are available. We present here a case series of 3 patients and a literature review of 28 studies treating a total of 116 patients, with the aim of providing data regarding efficacy and safety of methotrexate in the treatment of PRP. Methotrexate was effective in our patients; the review showed an overall response rate of 65.5% with complete clearing in 23.3% and excellent improvement in 17.2%, respectively. After excluding studies with other concurrent systemic therapies or low reliability, the overall response rate increased to 90.9%, with complete clearing in 40.9% and excellent improvement in 31.8%, respectively. Sixteen adverse reactions, of which 11 were mild, were observed in 15 patients (12.9%). In conclusion, the available literature supports good response rates and safety of methotrexate in PRP. PMID- 29335742 TI - Stand-alone Emollient Treatment Reduces Flares After Discontinuation of Topical Steroid Treatment in Atopic Dermatitis: A Double-blind, Randomized, Vehicle controlled, Left-right Comparison Study. AB - Prevention of the flares is a main goal in the long-term treatment of atopic dermatitis (AD). Therefore we investigated the efficacy of a water-in-oil emollient, containing licochalcone A, omega-6-fatty acids, ceramide 3 and glycerol, for prevention of the flares in adults with mild to moderately severe AD, treated with topical steroids, that led to clearing of the inflammatory lesions and had been discontinued prior to inclusion. The study was a 12-week, double-blind, randomized, vehicle-controlled, left-right comparison test with the number of relapses, defined as re-occurrence of erythema for at least 3 consecutive days, considered the primary outcome. Compared with the vehicle, the active formulation significantly reduced the number of relapses and maintained the barrier homeostasis of the respective arm. To the best of knowledge, this is the first study to show prevention of the AD flares by the use of stand-alone emollient treatment, based on comparison with the corresponding vehicle while excluding concomitant/rescue medications. PMID- 29335744 TI - [National Competency-Based Learning Objective Catalogue for Dental and Human Medicine]. PMID- 29335745 TI - [Health privacy in the age of digital networks]. AB - Digitization in the health sector embodies opportunities and risks. These consist of patient and data confidentiality. Vulnerability of data concerning integrity and availability can lead to financial losses and to damage of the health of data subjects. Those risks must be tackled by privacy or data protection law. For this purpose we have the European Data Protection Regulation as a comprehensive legal framework and a harmonizing bracket.This framework contains regulations on consent, purpose binding and data transfer, on rights of the data subject, technical and organizational measures and procedural arrangements. Recently, codes of conduct and certification schemes have been added as instruments. The frame of privacy law is completed by the law on medical products and information security regulations.Unfortunately, German legislation did not grip the opportunity of the European regulation to modernize, tighten and harmonize national privacy law in the health sector. This led to a lack of clarity, particularly because of the parallel applicability of privacy law and professional law. Central issues - for instance concerning transparency for data subjects, official supervision, analytics and processing for research purposes - remain dysfunctional. The German legislation should adjust those deficits. Corporations and the chambers for health professionals could and should also be active for this concern. PMID- 29335746 TI - [Cockade of the cecum in a child with acute abdominal pain]. PMID- 29335743 TI - [Prevention of cardiovascular diseases]. AB - The incidence of cardiovascular diseases can be reduced by the early detection and targeted treatment of risk factors and subclinical forms of the disease. Primary prevention provides several opportunities for successful interventions. In addition to a drug-based therapy, especially life style-modifying measures, such as physical activity, normalization of body weight, consistent nicotine abstinence and the consideration of psychosocial aspects represent core components of prevention programs. Healthcare data indicate that risk factors still often remain undetected and that the full potential of risk factor management has not yet been fully exploited at a population level. Especially motivation of patients and adherence to therapy represent key elements of successful prevention efforts. PMID- 29335747 TI - Patellar resurfacing versus patellar retention in primary total knee arthroplasty: a systematic review of overlapping meta-analyses. AB - PURPOSE: The need of patellar resurfacing in total knee arthroplasty (TKA) is a subject of debate. This systematic review of overlapping meta-analyses aimed to assess and analyze current evidence regarding patellar resurfacing and non resurfacing in TKA. METHODS: A systematic literature search was performed in March 2017 in PubMed, CINAHL and Cochrane Library. Inclusion criteria were meta analysis of randomized controlled trials that compared TKA with and without patellar resurfacing considering as outcomes re-operations rate, complications, anterior knee pain, functional scores. The quality of meta-analyses was evaluated with AMSTAR score and the most relevant meta-analysis was determined by applying the Jadad algorithm. RESULTS: Ten meta-analyses, published between 2005 and 2015, were included in the systematic review. Two studies found a significantly increased Knee Society Score in the resurfacing group. According to four meta analyses, anterior knee pain incidence was lower in resurfacing group. Six of the included studies described a greater risk of re-intervention in the non resurfacing groups. The overall quality of included studies was moderate. The most relevant meta-analysis reported no differences in functional scores and incidence of anterior knee pain between the groups. CONCLUSIONS: Comparable outcomes were found when comparing patellar resurfacing and non-resurfacing in TKA. The higher risk of re-operations after non-resurfacing should be interpreted with caution due to the methodological limitations of the meta-analyses regarding search criteria, heterogeneity and the inherent bias of easier indication to reoperation when the patella is not resurfaced. There is no clear superiority of patellar resurfacing compared to patellar retention. LEVEL OF EVIDENCE: Level II, systematic review of meta-analyses. PMID- 29335748 TI - Hydrogel implant is as effective as osteochondral autologous transplantation for treating focal cartilage knee injury in 24 months. AB - PURPOSE: The treatment approach for a patient with knee joint focal cartilage lesion is a difficult decision. To date, there has been no randomized clinical trial involving Hydrogel (CartivaTM). This study evaluated and compared the results of a hydrogel implant (CartivaTM) with autologous osteochondral transplantation (AOT) for treating knee joint focal cartilage lesions. METHODS: Thirty-eight symptomatic patients, with a focal cartilage lesion of Outerbridge grades III or IV, were randomized into one of two groups according to the inclusion and exclusion criteria. Group I underwent AOT, and Group II was treated with a Hydrogel implant. Patients were evaluated preoperatively and again postoperatively at 6, 12, and 24 months using the subjective International Knee Documentation Committee (IKDC) scores, Visual Analog Scale for Pain (VAS Pain), Activities of Daily Living Scale (ADLS) and Lysholm score. RESULTS: Both groups showed significant improvements from baseline (pre-surgery) to post-surgery (6, 12, and 24 months; p < 0.05), but there was no difference between the groups. Regarding complications, prolonged pain was observed in four patients (10.5%), two from each group, with a regression of symptoms within 1 year. CONCLUSION: The Hydrogel implant showed similar efficiency as the autologous osteochondral graft for treating knee joint focal cartilage lesions. Both techniques showed satisfactory results compared to preoperative status. The Hydrogel implant was safe and effective, and it provided good stability and joint function at 2-year follow-up. LEVEL OF EVIDENCE: I. PMID- 29335750 TI - Performance drifts in two-finger cyclical force production tasks performed by one and two actors. AB - We explored changes in the cyclical two-finger force performance task caused by turning visual feedback off performed either by the index and middle fingers of the dominant hand or by two index fingers of two persons. Based on an earlier study, we expected drifts in finger force amplitude and midpoint without a drift in relative phase. The subjects performed two rhythmical tasks at 1 Hz while paced by an auditory metronome. One of the tasks required cyclical changes in total force magnitude without changes in the sharing of the force between the two fingers. The other task required cyclical changes in the force sharing without changing total force magnitude. Subjects were provided with visual feedback, which showed total force magnitude and force sharing via cursor motion along the vertical and horizontal axes, respectively. Further, visual feedback was turned off, first on the variable that was not required to change and then on both variables. Turning visual feedback off led to a mean force drift toward lower magnitudes while force amplitude increased. There was a consistent drift in the relative phase in the one-hand task with the index finger leading the middle finger. No consistent relative phase drift was seen in the two-person tasks. The shape of the force cycle changed without visual feedback reflected in the lower similarity to a perfect cosine shape and in the higher time spent at lower force magnitudes. The data confirm findings of earlier studies regarding force amplitude and midpoint changes, but falsify predictions of an earlier proposed model with respect to the relative phase changes. We discuss factors that could contribute to the observed relative phase drift in the one-hand tasks including the leader-follower pattern generalized for two-effector tasks performed by one person. PMID- 29335752 TI - Diagnosis and management of long-bone nonunions: a nationwide survey. AB - PURPOSE: There is variability among surgeons on definitions regarding the degree of bone healing of long-bone fractures. A lack of consensus may negatively affect communication between surgeons, and lead to unintended and unwanted variability in treatment of patients suffering from abnormal healing of long-bone fractures. We aimed to identify differences between surgeons regarding their views on the degree of union of long-bone fractures. METHODS: We performed a survey among 114 surgeons who worked at 11 level I trauma centers and 68 level II/III hospitals in the Netherlands. We asked them to represent their institutional colleagues and answer questions regarding their views on the definition, factors influencing bone healing, clinical practice, views on scientific evidence, and the use or need of guidelines for non-union of long-bone fractures. A total of 26 trauma surgeons and 37 orthopedic surgeons responded (59%). RESULTS: Compared to trauma surgeons, more orthopedic surgeons maintain 6 months as the timeframe for classifying a fracture without healing tendencies as a non-union fracture (50 vs 70%; P = 0.019). Compared to orthopedic surgeons, trauma surgeons use the bone scan (46 vs 19%; P = 0.027) and the PET scan (50 vs 5.4%; P < 0.001) more often, and consider medication use to be a factor influencing bone healing more often (92 vs 69%; P = 0.040). Furthermore, they utilize bone marrow aspiration (35 vs 11%; P = 0.029), reaming of long bones (96 vs 70%; P = 0.010), synthetic bone substitutes (31 vs 5.4%; P = 0.012), bone morphogenetic proteins (58 vs 16%; P = 0.001), and the Diamond concept (92 vs 8.1%) more often as treatment modalities for non-union of long-bone fractures. Surgeons agreed on that intramedullary nail osteosynthesis was the treatment option supported by the highest level of evidence. 80% of the respondents feel a need for a clinical guideline on the management of long-bone non-union. CONCLUSION: There is no consensus among surgeons on the definition, factors influencing healing, clinical practice, and scientific evidence regarding non-union of long-bone fractures. The vast majority of surgeons believe that their practice would benefit from (inter)national guidelines on this topic, and efforts should be made to reduce surgeon-to-surgeon variability in treatment recommendations and facilitate more homogenous scientific research on non-union of long-bone fractures. LEVEL OF EVIDENCE: Level V. PMID- 29335751 TI - Transcranial direct current stimulation enhances foot sole somatosensation when standing in older adults. AB - Foot-sole somatosensation is critical for safe mobility in older adults. Somatosensation arises when afferent input activates a neural network that includes the primary somatosensory cortex. Transcranial direct current stimulation (tDCS), as a strategy to increase somatosensory cortical excitability, may, therefore, enhance foot-sole somatosensation. We hypothesized that a single session of tDCS would improve foot-sole somatosensation, and thus mobility, in older adults. Twenty healthy older adults completed this randomized, double-blinded, cross-over study consisting of two visits separated by one week. On each visit, standing vibratory threshold (SVT) of each foot and the timed-up and-go test (TUG) of mobility were assessed immediately before and after a 20-min session of tDCS (2.0 mA) or sham stimulation with the anode placed over C3 (according to the 10/20 EEG placement system) and the cathode over the contralateral supraorbital margin. tDCS condition order was randomized. SVT was measured with a shoe insole system. This system automatically ramped up, or down, the amplitude of applied vibrations and the participant stated when they could or could no longer feel the vibration, such that lower SVT reflected better somatosensation. The SVTs of both foot soles were lower following tDCS as compared to sham and both pre-test conditions [F(1,76) > 3.4, p < 0.03]. A trend towards better TUG performance following tDCS was also observed [F(1,76) = 2.4, p = 0.07]. Greater improvement in SVT (averaged across feet) moderately correlated with greater improvement in TUG performance (r = 0.48, p = 0.03). These results suggest that tDCS may enhance lower-extremity somatosensory function, and potentially mobility, in healthy older adults. PMID- 29335756 TI - Lead-Induced Physiological, Biochemical and Enzymatic Changes in Asplenium scolopendrium L. AB - The paper aims to determine the lead-induced physiological, biochemical and enzymatic changes in Asplenium scolopendrium, which could represent biomarkers used in environmental assessment. Of all the physiological processes, photosynthesis and respiration were analyzed and the enzymatic and biochemical determinations focused on catalase activity, assimilatory pigment concentration, polyphenol content and lead presence in tissues.The stress induced by the exposure to Pb of the species Asplenium scolopendrium determined an increase in the carotenoid content, the catalase activity, the total polyphenol content and also enhanced the respiration potential. No significant changes were recorded regarding the chlorophyll content and the photosynthetic activity. The recorded changes may be used as non-specific markers in the assessment of the impact of Pb on plants (Asplenium scolopendrium). PMID- 29335757 TI - Total Mercury in Squalid Callista Megapitaria squalida from the SW Gulf of California, Mexico: Tissue Distribution and Human Health Risk. AB - We evaluated the total Hg concentration in different tissues of squalid callista Megapitaria squalida in order to measure Hg distribution in tissue and to estimate human health risk. Samples were obtained by free diving in the SW Gulf of California, Mexico. Concentrations are given on a wet weight basis. A total of 89 squalid callista specimens were obtained, presenting an average Hg concentration of 0.07 +/- 0.04 ug g-1. There were no significant differences (p > 0.05) in Hg concentration between tissues (visceral mass = 0.09 +/- 0.08 ug g-1; mantle = 0.06 +/- 0.07 ug g-1; muscle = 0.06 +/- 0.04 ug g-1). The low Hg values found in squalid callista and its low risk quotient (HQ = 0.03) suggest that the consumption of squalid callista does not represent a human health risk. However, HQ calculated using MeHg was > 1, it which could indicate a potential risk related to consumption of clams. PMID- 29335749 TI - Diversity among POU transcription factors in chromatin recognition and cell fate reprogramming. AB - The POU (Pit-Oct-Unc) protein family is an evolutionary ancient group of transcription factors (TFs) that bind specific DNA sequences to direct gene expression programs. The fundamental importance of POU TFs to orchestrate embryonic development and to direct cellular fate decisions is well established, but the molecular basis for this activity is insufficiently understood. POU TFs possess a bipartite 'two-in-one' DNA binding domain consisting of two independently folding structural units connected by a poorly conserved and flexible linker. Therefore, they represent a paradigmatic example to study the molecular basis for the functional versatility of TFs. Their modular architecture endows POU TFs with the capacity to accommodate alternative composite DNA sequences by adopting different quaternary structures. Moreover, associations with partner proteins crucially influence the selection of their DNA binding sites. The plentitude of DNA binding modes confers the ability to POU TFs to regulate distinct genes in the context of different cellular environments. Likewise, different binding modes of POU proteins to DNA could trigger alternative regulatory responses in the context of different genomic locations of the same cell. Prominent POU TFs such as Oct4, Brn2, Oct6 and Brn4 are not only essential regulators of development but have also been successfully employed to reprogram somatic cells to pluripotency and neural lineages. Here we review biochemical, structural, genomic and cellular reprogramming studies to examine how the ability of POU TFs to select regulatory DNA, alone or with partner factors, is tied to their capacity to epigenetically remodel chromatin and drive specific regulatory programs that give cells their identities. PMID- 29335758 TI - Toxicity of Diclofenac in the Fern Azolla filiculoides and the Lichen Xanthoria parietina. AB - This study investigated the occurrence of toxicity, expressed as damage to the photosynthetic apparatus, in the aquatic fern Azolla filiculoides and the lichen Xanthoria parietina following treatments with diclofenac at different concentrations (0.1, 1, 10 and 100 mg/L) and different exposure times (24, 48, 72 and 240 h). Measurements of photosynthetic efficiency, chlorophyll content and chlorophyll degradation indicated dose- and time-dependent toxicity, since significant differences with control samples as well as among treatments, emerged mainly for the highest concentration (100 mg/L) and the longest time (240 h). In addition, also the mycobiont of the lichen X. parietina showed similar toxic effects, expressed as ergosterol content. The absence of relevant alterations at the lowest concentration (0.1 mg/L) suggested a very limited susceptibility of these species to environmentally relevant levels of this pharmaceutical. PMID- 29335759 TI - Bone-mediated anteroinferior glenohumeral instability : Current concepts. AB - Recurrent anterior shoulder instability is commonly associated with defects of the anterior glenoid rim. Substantial osseous defects significantly diminish the glenohumeral stability and require a bony augmentation, either by a coracoid transfer or free bone grafting procedure. Both reconstructive techniques have been applied for a long time and evaluated biomechanically and clinically. Although neither treatment option has been recognized as clearly superior, both comprise certain advantages and disadvantages. The Latarjet technique enables a biomechanically superior stabilization through the additional sling effect at time zero, but constitutes an extra-anatomical procedure with a broad spectrum and relatively high incidence of complications. Free bone grafting techniques enable an anatomical reconstruction of the glenoid concavity, offer the advantage of an unlimited graft size and show generally less severe and more easily manageable complications. The indications need to be carefully considered depending on the specific defect type, the glenoid track concept in cases of bipolar lesions as well as the individual patient characteristics. For both reconstructive procedures, open and arthroscopic approaches have been described with very good results, allowing a selection based on individual surgical skills and experience levels. PMID- 29335760 TI - [Current aspects and new techniques in dislocation of the shoulder joint]. AB - With 12% of all injuries concerning the shoulder, acromioclavicular (AC) joint dislocations are a common injury especially in young and active patients. The Rockwood classification is widely accepted, which differentiates between six types depending on the degree of injury and the vertical dislocation. Because the classification does not adequately address the horizontal instability, its benefits are questionable and there is currently no consensus. For this reason, the classification and the therapy of these injuries are increasingly becoming the subject of scientific investigations. Whereas conservative treatment for type I and II injuries and operative treatment for type IV-VI injuries are widely accepted, there is still no agreement in treating type III lesions. The goal of this review article is to present the current evidence for the diagnostics, different classifications and therapeutic possibilities. PMID- 29335761 TI - Adjacent intervertebral space infection after lumbar fusion. AB - BACKGROUND: Surgical site infection is a catastrophic complication after spinal surgery, which seriously affects the progress of rehabilitation and clinical outcome. Currently the clinical reports on spinal surgical site infections are mostly confined to the surgical segment itself and there are few reports on adjacent segment infections after spinal surgery. STUDY DESIGN: Case report. OBJECTIVE: To report a clinical case with adjacent level infection after spinal fusion. METHODS: We report the case of a 68-year-old woman who underwent posterior lumbar 4-5 laminectomy, posterolateral fusion and internal fixation. The patient showed signs of surgical site infection, such as surgical site pain, high fever and increase of the inflammatory index 1 week after the operation. Magnetic resonance imaging (MRI) confirmed the diagnosis of adjacent intervertebral disc infection. The patient received early combined, high-dose anti-infection treatment instead of debridement. RESULTS: After the conservative treatment, the infection was controlled and the patient subsequently enjoyed a normal daily life. CONCLUSION: Adjacent level infections can occur after spinal surgery. Early diagnosis and anti-infection treatment played an important role in the treatment of this kind of complication. PMID- 29335763 TI - 18F-Fluorocholine PET/CT as a second line nuclear imaging technique before surgery for primary hyperparathyroidism. PMID- 29335764 TI - Pulmonary 18F-FDG uptake helps refine current risk stratification in idiopathic pulmonary fibrosis (IPF). AB - PURPOSE: There is a lack of prognostic biomarkers in idiopathic pulmonary fibrosis (IPF) patients. The objective of this study is to investigate the potential of 18F-FDG-PET/ CT to predict mortality in IPF. METHODS: A total of 113 IPF patients (93 males, 20 females, mean age +/- SD: 70 +/- 9 years) were prospectively recruited for 18F-FDG-PET/CT. The overall maximum pulmonary uptake of 18F-FDG (SUVmax), the minimum pulmonary uptake or background lung activity (SUVmin), and target-to-background (SUVmax/ SUVmin) ratio (TBR) were quantified using routine region-of-interest analysis. Kaplan-Meier analysis was used to identify associations of PET measurements with mortality. We also compared PET associations with IPF mortality with the established GAP (gender age and physiology) scoring system. Cox analysis assessed the independence of the significant PET measurement(s) from GAP score. We investigated synergisms between pulmonary 18F-FDG-PET measurements and GAP score for risk stratification in IPF patients. RESULTS: During a mean follow-up of 29 months, there were 54 deaths. The mean TBR +/- SD was 5.6 +/- 2.7. Mortality was associated with high pulmonary TBR (p = 0.009), low forced vital capacity (FVC; p = 0.001), low transfer factor (TLCO; p < 0.001), high GAP index (p = 0.003), and high GAP stage (p = 0.003). Stepwise forward-Wald-Cox analysis revealed that the pulmonary TBR was independent of GAP classification (p = 0.010). The median survival in IPF patients with a TBR < 4.9 was 71 months, whilst in those with TBR > 4.9 was 24 months. Combining PET data with GAP data ("PET modified GAP score") refined the ability to predict mortality. CONCLUSIONS: A high pulmonary TBR is independently associated with increased risk of mortality in IPF patients. PMID- 29335765 TI - Wastewater-based tracing of doping use by the general population and amateur athletes. AB - The present study investigates the applicability of the chemical analysis of wastewater to assess the use of doping substances by the general population and amateur athletes. To this end, an analytical methodology that can identify and quantify a list of 15 substances from the groups of anabolic steroids, weight loss products, and masking agents in wastewater has been developed. The method uses solid phase extraction to increase the detection sensitivity of the target analytes, expected to be present at very low concentrations (ng L-1 range), and decrease possible matrix interferences. Instrumental analysis is performed by liquid chromatography coupled to high-resolution mass spectrometry, allowing data acquisition in both full scan and tandem MS mode. The method has been successfully validated at two concentration levels (50 and 200 ng L-1) with limits of quantification ranging between 0.7 and 60 ng L-1, intra- and inter-day precision expressed as relative standard deviation below 15%, procedural recoveries between 60 and 160% and matrix effects ranging from 45 to 121%. The stability of the analytes in wastewater was evaluated at different storage temperatures illustrating the importance of freezing the samples immediately after collection. The application of the method to 24-h composite wastewater samples collected at the entrance of three wastewater treatment plants and one pumping station while different sport events were taking place revealed the presence in wastewater, and hence the use, of the weight loss substances ephedrine, norephedrine, methylhexanamine, and 2,4-dinitrophenol. The use of these stimulants was visible just prior and during the event days and in greater amounts than anabolic steroids or masking agents. Graphical abstract Chemical analysis of untreated wastewater reveals the use of prohibited doping substances during amateur sport event. PMID- 29335766 TI - Magnetofluorescent nanocomposites and quantum dots used for optimal application in magnetic fluorescence-linked immunoassay. AB - Magnetofluorescent nanocomposites with optimal magnetic and fluorescent properties were prepared and characterized by combining magnetic nanoparticles (iron oxide@polymethyl methacrylate) with fluorescent nanoparticles (rhodamine 6G@mSiO2). Experimental parameters were optimized to produce nanocomposites with high magnetic susceptibility and fluorescence intensity. The detection of a model biomarker (alpha-fetoprotein) was used to demonstrate the feasibility of applying the magnetofluorescent nanocomposites combined with quantum dots and using magnetic fluorescence-linked immunoassay. The magnetofluorescent nanocomposites enable efficient mixing, fast re-concentration, and nanoparticle quantization for optimal reactions. Biofunctional quantum dots were used to confirm the alpha fetoprotein (AFP) content in sandwich immunoassay after mixing and washing. The analysis time was only one third that required in ELISA. The detection limit was 0.2 pg mL-1, and the linear range was 0.68 pg mL-1-6.8 ng mL-1. This detection limit is lower, and the linear range is wider than those of ELISA and other methods. The measurements made using the proposed method differed by less than 13% from those obtained using ELISA for four AFP concentrations (0.03, 0.15, 0.75, and 3.75 ng mL-1). The proposed method has a considerable potential for biomarker detection in various analytical and biomedical applications. Graphical abstract Magnetofluorescent nanocomposites combined with fluorescent quantum dots were used in magnetic fluorescence-linked immunoassay. PMID- 29335762 TI - Targeting PSMA by radioligands in non-prostate disease-current status and future perspectives. AB - BACKGROUND: Prostate-specific membrane antigen (PSMA) is the up-and-coming target for molecular imaging of prostate cancer. Despite its name, non-prostate-related PSMA expression in physiologic tissue as well as in benign and malignant disease has been reported in various publications. Unlike in prostate cancer, PSMA expression is only rarely observed in non-prostate tumor cells. Instead, expression occurs in endothelial cells of tumor-associated neovasculature, although no endothelial expression is observed under physiologic conditions. The resulting potential for tumor staging in non-prostate malignant tumors has been demonstrated in first patient studies. This review summarizes the first clinical studies and deduces future perspectives in staging, molecular characterization, and PSMA-targeted radionuclide therapy based on histopathologic examinations of PSMA expression. CONCLUSIONS: The non-exclusivity of PSMA in prostate cancer opens a window to utilize the spectrum of available radioactive PSMA ligands for imaging and molecular characterization and maybe even therapy of non-prostate disease. PMID- 29335767 TI - Atrial fibrillation and MPNs. PMID- 29335769 TI - An adolescent presenting with acquired acute renal damage: Questions. PMID- 29335770 TI - An adolescent presenting with acquired acute renal damage: Answers. PMID- 29335768 TI - CTLA-4 polymorphisms: influence on transplant-related mortality and survival in children undergoing allogeneic hematopoietic stem cell transplantation. AB - PURPOSE: Allogeneic hematopoietic stem cell transplantation (HSCT) is a curative approach for a variety of hematological diseases; however, it is still associated with substantial morbidity and mortality. Transplant-related mortality (TRM) after HSCT depends mainly on the toxicity of the conditioning regimen, infections, and graft-versus-host disease. The purpose of this study was to identify the association between CTLA-4 single nucleotide polymorphisms and TRM in children undergoing allogeneic HSCT. METHODS: 153 donors and 153 children with acute lymphoblastic leukemia, acute myeloid leukemia or juvenile myelomonocytic leukemia who had undergone allogeneic HSCT were genotyped of CTLA-4 gene for rs3087243 (CT60G>A), rs231775 (+ 49 A>G) and rs4553808 using TaqMan real-time polymerase chain reaction. RESULTS: We observed a significant association between the donor's CLTA-4 genotype of rs3087243 and TRM in children undergoing allogeneic HSCT. Genotype AG was found in 78 donors (51%), GG in 44 donors (29%) and 31 donors (20%) were homozygous for AA. 30 patients died as a result of transplant-related causes. Interestingly, we observed a significantly reduced TRM in children who were transplanted from a donor with the CTLA-4 genotype GG in comparison to genotype AG or AA (9 versus 19 versus 36%, P = 0.013). In addition, we found significant differences of event-free survival (EFS) depending on the donor's genotype. The EFS was 64, 46 or 32% if the patient was transplanted from a donor with CTLA-4 genotype GG, AG or AA, respectively (P = 0.043). In multivariate analysis, CTLA-4 genotype of rs3087243 was an independent risk factor for TRM (P = 0.011) and EFS (P = 0.035). CONCLUSION: This study provides first evidence that the CTLA-4 polymorphisms are significant risk factors for TRM and survival in children undergoing allogeneic HSCT and should be evaluated in further trials. PMID- 29335772 TI - Investigation on the correlation between energy deposition and clustered DNA damage induced by low-energy electrons. AB - This study presents the correlation between energy deposition and clustered DNA damage, based on a Monte Carlo simulation of the spectrum of direct DNA damage induced by low-energy electrons including the dissociative electron attachment. Clustered DNA damage is classified as simple and complex in terms of the combination of single-strand breaks (SSBs) or double-strand breaks (DSBs) and adjacent base damage (BD). The results show that the energy depositions associated with about 90% of total clustered DNA damage are below 150 eV. The simple clustered DNA damage, which is constituted of the combination of SSBs and adjacent BD, is dominant, accounting for 90% of all clustered DNA damage, and the spectra of the energy depositions correlating with them are similar for different primary energies. One type of simple clustered DNA damage is the combination of a SSB and 1-5 BD, which is denoted as SSB + BD. The average contribution of SSB + BD to total simple clustered DNA damage reaches up to about 84% for the considered primary energies. In all forms of SSB + BD, the SSB + BD including only one base damage is dominant (above 80%). In addition, for the considered primary energies, there is no obvious difference between the average energy depositions for a fixed complexity of SSB + BD determined by the number of base damage, but average energy depositions increase with the complexity of SSB + BD. In the complex clustered DNA damage constituted by the combination of DSBs and BD around them, a relatively simple type is a DSB combining adjacent BD, marked as DSB + BD, and it is of substantial contribution (on average up to about 82%). The spectrum of DSB + BD is given mainly by the DSB in combination with different numbers of base damage, from 1 to 5. For the considered primary energies, the DSB combined with only one base damage contributes about 83% of total DSB + BD, and the average energy deposition is about 106 eV. However, the energy deposition increases with the complexity of clustered DNA damage, and therefore, the clustered DNA damage with high complexity still needs to be considered in the study of radiation biological effects, in spite of their small contributions to all clustered DNA damage. PMID- 29335771 TI - Risk perception of heat waves and its spatial variation in Nanjing, China. AB - The intensity, frequency, and duration of heat waves are expected to increase with climate change. In this study, we found a significant difference of public perceived effects of heat waves and trust in government among urban, suburban, and rural districts. Rural residents had a significant higher effect perception than urbanites and also showed stronger willingness to have medical insurance or regular physical examinations. Meanwhile, suburban residents had the lowest trust perception in government among these three districts, which may be due to suburban districts' unique social structure and complex social issues. Besides, we assessed the relationship between the factor effect and demographic variables. The results showed that urban respondents' effect perception was significantly related to heat wave experiences. Suburban respondents' effect perception was significantly related to age, income, and heat wave experiences. And rural respondents' effect perception was significantly related to income and chronic diseases. Based on our results, much more attention needs to be paid to rural districts. The government should strengthen infrastructure construction such as cooling centers, improve emergency response plans and mechanisms, and increase reserves of emergency supplies in rural districts. Also, targeted risk communication is of the equal importance to aid the policy-makers improving the relationship with the public and regaining the public's trust and support. PMID- 29335773 TI - Effects of combining ergonomic interventions and motor control exercises on muscle activity and kinematics in people with work-related neck-shoulder pain. AB - PURPOSE: This study compared the effects of "Ergomotor" intervention and conventional physiotherapy, on influencing the motor control in the neck-shoulder region in people with work-related neck-shoulder pain (WRNSP). METHODS: 101 patients (age range 20-54 years) diagnosed with chronic WRNSP were randomized into control (CO) group (n = 50) and Ergomotor (EM) group (n = 51). Each group received a 12-week intervention. Participants in CO group received treatment for pain relief and general exercises. EM group received individualized motor control training and advice of ergonomic modifications at their workplaces. RESULTS: At post-intervention, EM group showed significant reduction of bilateral upper trapezius muscle activity during active neck movements (left: 40-35%, right: 35 27%) and functional tasks such as lifting a weight forward-backward (left: 31 21%, right: 22-14%) and upward-downward (left: 26-23%, right: 20-13%). Cervical erector spinae also showed significant decrease in muscle activity during some phases of the functional tasks (left: 13-6%, right: 10-2%). In contrast, CO group did not show such changes in muscle activity at post-intervention. EM group also showed significant increase in movement velocity and acceleration during active neck movements in all directions (from 18 to 31%), while CO group only showed significant increase in movement velocity in some directions. Both groups reported significant but similar reduction in pain scores, at post-intervention and 1-year follow-up. CONCLUSIONS: The present results provided some evidence to support the positive and sustainable benefits of integrating motor control training into the workplace postures and motions. PMID- 29335774 TI - Genomic trade-offs: are autism and schizophrenia the steep price of the human brain? AB - Evolution often deals in genomic trade-offs: changes in the genome that are beneficial overall persist even though they also produce disease in a subset of individuals. Here, we explore the possibility that such trade-offs have occurred as part of the evolution of the human brain. Specifically, we provide support for the possibility that the same key genes that have been major contributors to the rapid evolutionary expansion of the human brain and its exceptional cognitive capacity also, in different combinations, are significant contributors to autism and schizophrenia. Furthermore, the model proposes that one of the primary genes behind this trade-off may not technically be "a gene" or "genes" but rather are the highly duplicated sequences that encode the Olduvai protein domain family (formerly called DUF1220). This is not an entirely new idea. Others have proposed that the same genes involved in schizophrenia were also critical to the rapid expansion of the human brain, a view that has been expressed as "the same 'genes' that drive us mad have made us human". What is new is that a "gene", or more precisely a protein domain family, has been found that may satisfy these requirements. PMID- 29335775 TI - A new genus, Planticonsortium (Mucoromycotina), and new combination (P. tenue), for the fine root endophyte, Glomus tenue (basionym Rhizophagus tenuis). AB - In 1977, the fine root endophyte, originally named Rhizophagus tenuis, was transferred into the genus Glomus as G. tenue, thus positioning the species with all other known arbuscular mycorrhizal fungi (Glomeromycota, Glomeromycotina). Recent molecular evidence, however, places it in a different subphylum, Mucoromycotina in the Mucoromycota. No suitable genus exists in the Mucoromycotina to accommodate G. tenue, so it is moved to Planticonsortium gen. nov. as P. tenue comb. nov. PMID- 29335776 TI - MIGS: therapeutic success of combined Xen Gel Stent implantation with cataract surgery. AB - PURPOSE: Glaucoma, a common disease in the elderly population, is frequently coexistent with cataract. While the combination of filtration surgery and cataract surgery is a challenging topic with limited success, minimal invasive glaucoma surgery (MIGS), such as Xen Gel Stents, seems to provide promising results. The aim of this study was to investigate the complete and qualified therapeutic success of Xen Gel Stent implantation with (XenPhaco) and without cataract surgery. METHODS: One hundred and eleven open-angle glaucoma eyes underwent implantation of Xen45 Gel Stent (AqueSys, Inc.) with or without cataract operation. Complete therapeutic success was defined as target intraocular pressure (IOP) < 18 mmHg at any time point within 6 months of follow up without local antiglaucomatous therapy or further surgical interventions. Qualified success was defined as target IOP <18 mmHg with additional 1-2 local antiglaucomatous eye drops. Failure included all cases with the necessity of at least three local antiglaucomatous eye drops or additional glaucoma surgery. RESULTS: Combined implantation of Xen Gel Stent with cataract surgery was performed in 30 eyes and stand-alone Xen Gel Stent implantation was performed in 81 eyes. A complete therapeutic success was achieved in 46.9% of single Xen Gel Stent implantation, whereas 53.3% was reached with combined XenPhaco. Qualified success was seen in 2.5% in the eyes of the single Xen Gel Stent implantation group and in 3.3% of the combined surgery group. Therapeutic failure rate was 49.4% in the stand-alone group vs 46.7% in the combined group. Data were not significantly different for group and subgroup analyses. CONCLUSIONS: Complete and qualified therapeutic success is similar for the combination of Xen Gel Stent implantation with and without cataract surgery in open-angle glaucoma patients. MIGS using Xen Gel Stent can be recommended in situations if glaucoma surgery is indicated besides coexisting cataract. PMID- 29335778 TI - Hippocampal area CA2: properties and contribution to hippocampal function. AB - This review focuses on area CA2 of the hippocampus, as recent results have revealed the unique properties and surprising role of this region in encoding social, temporal and contextual aspects of memory. Originally identified and described by Lorente de No, in 1934, this region of the hippocampus has unique intra-and extra-hippocampal connectivity, sending and receiving input to septal and hypothalamic regions. Recent in vivo studies have indicated that CA2 pyramidal neurons encode spatial information during immobility and play an important role in the generation of sharp-wave ripples. Furthermore, CA2 neurons act to control overall excitability in the hippocampal network and have been found to be consistently altered in psychiatric diseases, indicating that normal function of this region is necessary for normal cognition. With its unique role, area CA2 has a unique molecular profile, interneuron density and composition. Furthermore, this region has an unusual manifestation of synaptic plasticity that does not occur post-synaptically at pyramidal neuron dendrities but through the local network of inhibitory neurons. While much progress has recently been made in understanding the large contribution of area CA2 to social memory formation, much still needs to be learned. PMID- 29335777 TI - Fully automatic CT-histogram-based fat estimation in dead bodies. AB - Post-mortem body cooling is the foundation of temperature-based death time estimations (TDE) in homicide cases. Forensic science generally provides two types of p.m. body cooling models, the phenomenological and the physical models. Since both of them have to implement important individual parameters like the quantity of abdominal fat explicitly or implicitly, a more exact quantification and localization of abdominal fat is a desideratum in TDE. Particularly for the physical models, a better knowledge of the abdominal fat distribution could lead to relevant improvements in TDEs. Modern imaging methods in medicine like computed tomography (CT) are opening up the possibility to register the quantity and spatial distribution of body fat in individual cases with unprecedented precision. Since a CT-scan of an individual's abdominal region can comprise 1000 slices as an order of magnitude, it is evident that their evaluation for body fat quantification and localization needs fully automated algorithms. The paper at hand describes the development and validation of such an algorithm called "CT histogram-based fat estimation and quasi-segmentation" (CFES). The approach can be characterized as a weighted least squares method dealing with the gray value histogram of single CT-slices only. It does not require any anatomical a priori information nor does it perform time-consuming feature detection on the CT images. The processing result consists in numbers quantifying the amount of abdominal body fat and of muscle-, organ-, and connective tissue. As a by product, CFES generates a quasi-segmentation of the slices processed differentiating fat from muscle-, organ-, and connective tissue. The tool is validated on synthetic data and on CT-data of a special phantom. It was also applied on a CT-scan of a dead body, where it produced anatomically plausible results. PMID- 29335779 TI - Equine neutrophils and their role in ischemia reperfusion injury and lung inflammation. AB - Horses are susceptible to a multitude of inflammatory conditions that are characterized by a strong neutrophilic response. Here, we review basic equine neutrophil biology and explore the role of neutrophils in inflammatory conditions with emphasis on intestinal ischemia and reperfusion injury and lung inflammation. In addition, unique aspects of equine neutrophil biology have been highlighted. Neutrophils comprise the highest proportion of circulating white blood cells in equine blood. The concentration of circulating equine neutrophils is a primary indicator of systemic inflammation. Additionally, equine neutrophils exposed to various stimulants develop "toxic" changes characterized as cytoplasmic basophilia, presence of Dohle bodies, cytoplasmic vacuolation and toxic granulation. In contrast to human neutrophils, equine neutrophils fail to undergo chemotaxis in response to the peptide N-formyl-methionyl-leucyl phenylalanine and are dependent on the addition of arachidonic acid due to reduced activity of phospholipase A2 to synthesize leukotrienes as part of the arachidonic acid pathway. Understanding the biologic function of neutrophils in horses is integral to developing methods to modulate inflammation associated with ischemia reperfusion injury and lung disease. PMID- 29335781 TI - Peripartum events associated with severe neurologic morbidity and mortality among acidemic neonates. AB - PURPOSE: To identify peripartum events that may predict the development of short term neurologic morbidity and mortality among acidemic neonates. METHODS: Retrospective case-control study conducted at a single-teaching hospital on data from January 2010 to December 2015. The study cohort group included all acidemic neonates (cord artery pH <= 7.1) born at >= 34 weeks. Primary outcome was a composite including any of the following: neonatal encephalopathy, convulsions, intra-ventricular hemorrhage, or neonatal death. The study cohort was divided to the cases group, i.e., acidemic neonates who had any component of the primary outcome, and a control group, i.e., acidemic neonates who did not experience any component of the primary outcome. RESULTS: Of all 24,311 neonates born >= 34 weeks during the study period, 568 (2.3%) had a cord artery pH <= 7.1 and composed the cohort study group. Twenty-one (3.7%) neonates composed the cases group. Multivariate logistic regression analysis revealed that cases were significantly more likely to have experienced placental abruption (OR 18.78; 95% CI 5.57-63.26), born <= 2500 g (OR 13.58; 95% CI 3.70-49.90), have meconium (OR 3.80; 95% CI 1.20-11.98) and cord entanglement (OR 5.99; 95% CI 1.79-20.06). The probability for developing the composite outcome rose from 3.7% with isolated acidemia to 97% among neonates who had all these peripartum events combined with intrapartum fetal heart rate tracing category 2 or 3. CONCLUSION: Neonatal acidemia carries a favorable outcome in the vast majority of cases. In association with particular antenatal and intrapartum events, the short-term outcome may be unfavorable. PMID- 29335780 TI - A comparison of semi-automated volumetric vs linear measurement of small vestibular schwannomas. AB - OBJECTIVE: Accurate and precise measurement of vestibular schwannoma (VS) size is key to clinical management decisions. Linear measurements are used in routine clinical practice but are prone to measurement error. This study aims to compare a semi-automated volume segmentation tool against standard linear method for measuring small VS. This study also examines whether oblique tumour orientation can contribute to linear measurement error. STUDY DESIGN: Experimental comparison of observer agreement using two measurement techniques. SETTING: Tertiary skull base unit. PARTICIPANTS: Twenty-four patients with unilateral sporadic small (< 15 mm maximum intracranial dimension) VS imaged with 1 mm-thickness T1-weighted Gadolinium enhanced MRI. MAIN OUTCOME MEASURES: (1) Intra and inter-observer intraclass correlation coefficients (ICC), repeatability coefficients (RC), and relative smallest detectable difference (%SDD). (2) Mean change in maximum linear dimension following reformatting to correct for oblique orientation of VS. RESULTS: Intra-observer ICC was higher for semi-automated volumetric when compared with linear measurements, 0.998 (95% CI 0.994-0.999) vs 0.936 (95% CI 0.856-0.972), p < 0.0001. Inter-observer ICC was also higher for volumetric vs linear measurements, 0.989 (95% CI 0.975-0.995) vs 0.946 (95% CI 0.880-0.976), p = 0.0045. The intra-observer %SDD was similar for volumetric and linear measurements, 9.9% vs 11.8%. However, the inter-observer %SDD was greater for volumetric than linear measurements, 20.1% vs 10.6%. Following oblique reformatting to correct tumour angulation, the mean increase in size was 1.14 mm (p = 0.04). CONCLUSION: Semi-automated volumetric measurements are more repeatable than linear measurements when measuring small VS and should be considered for use in clinical practice. Oblique orientation of VS may contribute to linear measurement error. PMID- 29335782 TI - Association of endogenous circulating sex steroids and condition-specific quality of life domains in postmenopausal women with pelvic floor disorders. AB - OBJECTIVE: To examine the relationship between endogenous sex steroids and various condition-specific quality of life domains in postmenopausal women with pelvic floor disorders. We hypothesized that woman with lowest androgen and estradiol concentrations would report worse scores of quality of life domains. METHODS: Forty-six women with pelvic organ prolapse (POP) and 47 cases with stress urinary incontinence (SUI) answered the validated pelvic floor questionnaire and underwent serum sex steroid measurement. A multivariate logistic regression model was used to determine the association between subjective outcome parameters and serum hormonal levels after adjusting for confounders. RESULTS: Univariate analysis revealed a strong inverse correlation between serum estradiol level (E2) and prolapse domain score (correlation coefficient = 0.005) as well as a significant positive correlation between SHBG level and prolapse domain score (correlation coefficient = 0.019) in cases with POP. Furthermore, the sex domain score showed a significant negative correlation with the androstendion (correlation coefficient = 0.020), DHEAS (correlation coefficient = 0.046) and testosterone level (correlation coefficient = 0.032) in the POP group. In the multivariate model, high serum SHBG (CI: 0.007-0.046) remained independently associated with worse scores in the prolapse domain and low serum DHEAS (CI: - 0.989 to 1.320) persisted as a significant predictor for a worse score in the sex domain. Regarding SUI cases, no association was noted between serum hormonal levels and quality of life related pelvic floor domains (correlation coefficient > 0.05). CONCLUSION: Our results suggest that pelvic floor related quality of life might also be affected by endogenous sex steroids in POP, but not in SUI cases. PMID- 29335783 TI - Maternal and neonatal omentin-1 levels in gestational diabetes. AB - PURPOSE: To evaluate the effect of gestational diabetes on omentin-1 in maternal and cord plasma. As a potent mediator of insulin resistance, Omentin-1, an adipokine derived from human adipose and placental tissue, may be an important player in the pathophysiology of gestational diabetes. METHODS: This was a prospective case-control study. The study included 96 women with gestational diabetes and 96 pregnant women without. Omentin-1 was measured at the time of the oral glucose tolerance test, at 32 weeks in maternal plasma and right after delivery in umbilical cord blood by ELISA assay. RESULTS: Over a period of 2 years, 200 patients were enrolled. Omentin-1 levels did not significantly differ between both groups throughout the pregnancy: omentin-1 levels were 157 +/- 83 ng/ml in women with gestational diabetes and 158 +/- 93 ng/ml in women without gestational diabetes (p = 0.94) at time of the oral glucose tolerance test and 118 +/- 77 ng/ml in women with diabetes and 150 +/- 89 ng/ml in women without (p = 0.12) at 32 weeks, respectively. Both groups showed a decrease in omentin-1 levels throughout pregnancy, with a more pronounced decrease in diabetic women (13 +/- 53 versus 4 +/- 48 ng/ml; p = 0.5). Neonatal omentin-1 levels were significantly lower in offspring of diabetic mothers: 106 +/- 61 versus 134 +/- 45 ng/ml (p = 0.03). CONCLUSIONS: There was no significant difference in omentin 1 levels between healthy and diabetic mothers throughout the pregnancy. However, we found significantly lower omentin-1 levels in offspring of diabetic mothers. This may indicate a risk for the development of insulin resistance in later life. PMID- 29335784 TI - Clinical significance of miRNA-21, -103, -129, -150 in serous ovarian cancer. AB - PURPOSE: We aimed to compare expression levels of miRNA-21, -103, -129, -150 in primary tumour tissues and its omental metastases from patients operated for advanced ovarian serous cancer. Expression levels of selected miRNAs were correlated with clinicopathological features, including chemosensitivity and survival. METHODS: We performed total RNA extraction from archival formalin-fixed paraffin-embedded tissue samples of primary serous ovarian cancer and omental metastases. The study included 48 patients with advanced ovarian cancer. The reference group consisted of 48 normal ovarian tissue samples. We performed cDNA synthesis, real time polymerase chain reaction and assessed relative expression of selected miRNAs. RESULTS: Samples derived from serous ovarian cancer were characterized by higher expression levels of miRNA-150 in comparison to omental metastases (p = 0.045). Furthermore, we observed that shorter progression free survival was associated with lower levels of miRNA-150 in metastatic tissues. We did not find similar relationships for other miRNAs. CONCLUSIONS: MiRNA-150 may potentially serve as a prognostic factor in advanced ovarian cancer. However, further studies are required to clearly confirm such hypothesis. PMID- 29335785 TI - Heterologous expression of rice 9-cis-epoxycarotenoid dioxygenase 4 (OsNCED4) in Arabidopsis confers sugar oversensitivity and drought tolerance. AB - BACKGROUND: The 9-cis-epoxycarotenoid dioxygenases OsNCED4 was cloned from rice in conjunction with OsNCED 1-3 and 5, of which 3 has been shown to function in ABA biosynthesis and alteration of leaf morphology. In higher plants, NCEDs have been shown to be key enzymes controlling ABA biosynthesis and belong to a differentially expressed gene family. Aside from OsNCED3, it remains largely unknown if other OsNCED genes are involved in ABA biosynthesis in rice. Thus, transgenic Arabidopsis plants overexpressing OsNCED4 were generated in the 129B08/nced3 mutant background to explore OsNCED4 function in ABA biosynthesis. RESULTS: Heterologous expression of OsNCED4 in Arabidopsis increased ABA levels and altered plant size and leaf shape, delayed seed germination, caused sugar oversensitivity in post-germination growth, and enhanced tolerance to drought. The native OsNCED3 and OsNCED4 promoters were expressed in an overlapping pattern in rice seeds and young seedlings, suggesting possible functional redundancy between OsNCED3 and OsNCED4. At the one-leaf stage, similar regulation of OsNCED3 and OsNCED4 gene expression in roots or leaves in response to moderate salt stress (150 mM NaCl) was observed. CONCLUSION: Like OsNCED3, OsNCED4 is functionally active in ABA biosynthesis in rice. OsNCED3 and OsNCED4 might play redundant roles in controlling ABA biosynthesis in rice, as suggested by GUS staining assay, but this should be further analyzed through complementation of rice NCED knockout mutants. PMID- 29335786 TI - Anti-inflammatory and antiplatelet effects of non-vitamin K antagonist oral anticoagulants in acute phase of ischemic stroke patients. AB - BACKGROUND: Recently, non-vitamin K antagonist oral anticoagulants such as direct thrombin and direct factor Xa inhibitors have been prescribed for prevention of embolic stroke. While in Japan, argatroban, also a direct thrombin inhibitor, is available for the treatment of atherothrombotic stroke patients. This study aimed to explore whether there is any differences between direct thrombin and direct factor Xa inhibitors regarding the inhibiting effect against thrombogenesis in the clinical setting of acute ischemic stroke. METHODS: Acute ischemic stroke patients newly prescribed anti-thrombotic agents were consecutively screened, and 44 patients with single medicine were enrolled (median 72.0 years-old). Blood samples were obtained at 1 and 2 weeks after the medication started. The extent of anticoagulation activity, inflammatory markers and platelet aggregation were assessed. Patients with antiplatelets were used as control. RESULTS: Prescribed antithrombotics were dabigatran (group D: n = 12), apixaban (group A: n = 14) and antiplatelet agents (group P: n = 18). Prevalence of stroke risks and anticoagulation activity were not different between groups D and A. The alteration of inflammatory markers in a week in the group A showed similar trend to those in the group P. The group D presented relatively lower amount of high sensitive C-reactive protein and higher amount of pentraxin-3 compared with groups A and P. While 88.9% of group P patients showed decreased platelet aggregation activity with adenosine diphosphate, 55.6% of group D and 40.0% of group A presented the inhibition of platelet aggregation activity. CONCLUSIONS: Even in acute ischemic stroke patients, both apixaban and dabigatran equally showed the anticoagulation activity. The reduction of inflammatory response might be prominent in apixaban, whereas the inhibition of platelet aggregation activity might be evident in dabigatran. PMID- 29335787 TI - Synthesis of Water-Soluble Antimony Sulfide Quantum Dots and Their Photoelectric Properties. AB - Antimony sulfide (Sb2S3) has been applied in photoelectric devices for a long time. However, there was lack of information about Sb2S3 quantum dots (QDs) because of the synthesis difficulties. To fill this vacancy, water-soluble Sb2S3 QDs were prepared by hot injection using hexadecyltrimethylammonium bromide (CTAB) and sodium dodecyl sulfate (SDS) mixture as anionic-cationic surfactant, alkanol amide (DEA) as stabilizer, and ethylenediaminetetraacetic acid (EDTA) as dispersant. Photoelectric properties including absorbing and emission were characterized by UV-Vis-IR spectrophotometer and photoluminescence (PL) spectroscopic technique. An intensive PL emission at 880 nm was found, indicating Sb2S3 QDs have good prospects in near-infrared LED and near-infrared laser application. Sb2S3 QD thin films were prepared by self-assembly growth and then annealed in argon or selenium vapor. Their band gaps (E g s) were calculated according to transmittance spectra. The E g of Sb2S3 QD thin film has been found to be tunable from 1.82 to 1.09 eV via annealing or selenylation, demonstrating the good prospects in photovoltaic application. PMID- 29335788 TI - Over-expression of a grafting-responsive gene from hickory increases abiotic stress tolerance in Arabidopsis. AB - KEY MESSAGE: A grafting response gene CcPIP1;2 was cloned from hickory plant, further functional characterization of the gene for water transport activity and abiotic stress tolerances were carried out through heterologous expression in Xenopus and Arabidopsis. Plasma membrane intrinsic proteins (PIPs) are multifunctional channel proteins belonging to the membrane intrinsic protein (MIP) family. In this study, a grafting-responsive gene from hickory (CcPIP1;2) was cloned and functionally characterized. Application of non-selective water inhibitors (HgCl2 and phloretin) led to the death of grafted hickory plants at 30 days after grafting (DAG). Furthermore, the transcript accumulation of the selected CcPIP1;2 gene was gradually decreased from 0 to 14 DAG in the grafted samples under inhibitor treatment conditions. Transient expression analysis of the GFP-CcPIP1;2 fusion protein showed that CcPIP1;2 was located at plasma membrane. Heterologous expression of CcPIP1;2 protein in the Xenopus oocyte system helped the access of water into the cells. Over-expression of CcPIP1;2 in Arabidopsis improved the percentage of seed germination when the seeds were grown in H2O2-, ABA-, and mannitol-containing media, but had no effect when grown in the salt containing media. CcPIP1;2 transgenic plants grew better under drought conditions. The expression of various ABA-related stress marker genes as well as cell wall expansin marker genes was significantly higher in CcPIP1;2 over expression Arabidopsis lines than in the wild type (WT). PMID- 29335789 TI - First record of Trypanosoma dionisii of the T. cruzi clade from the Eastern bent winged bat (Miniopterus fuliginosus) in the Far East. AB - Chiropteran mammals worldwide harbour trypanosomes (Euglenozoa: Kinetoplastea: Trypanosomatida) of the subgenus 'Schizotrypanum' in the classical sense. Latterly, these trypanosomes have been referred to as members of the 'Trypanosoma cruzi clade' as their phylogenetic relationships, structure and life cycle conform to T. cruzi, parasitising various terrestrial mammals as well as humans in Latin America. Little is known, however, about the trypanosome species in Asian bats. During a survey on Borrelia spp. in the Eastern bent-winged bat (Miniopterus fuliginosus) living in a cave in Wakayama Prefecture, Japan, incidental proliferation of trypanosomes was detected in two of 94 haemocultures. Squat or slender trypanosomes that proliferated in the cultures were 7.5-20.5 MUm in length between both body ends and 1.0-3.8 MUm in width with/without free flagella up to 14.5 MUm (n = 29). The nucleotide sequences of the small subunit ribosomal RNA gene (SSU rDNA; 2176 bp), large subunit ribosomal RNA gene (1365 bp) and glycosomal glyceraldehyde-3-phosphate dehydrogenase gene (gGAPDH; 843 bp) of the present isolates were characterized to clarify their molecular phylogenetic position in T. cruzi-like trypanosomes. The newly obtained SSU rDNA and gGAPDH nucleotide sequences showed the highest identities with Brazilian and European isolates of Trypanosoma dionisii of the T. cruzi clade, ranging between 99.4 and 99.7% or between 95.6 and 99.3% identities, respectively. Although multiple T. dionisii isolates from the North and South American continents showed the closest molecular genetic relatedness to the present Far East isolates, only short SSU rDNA segments of the former isolates were deposited. Therefore, a definitive conclusion cannot be made until full nucleotide sequencing of at least the American isolates' SSU rDNA is available. This is the first confirmation of a Far East distribution of T. dionisii, demonstrating a wide geographical distribution of the species in the Eurasian and American continents with a limited nucleotide variation. PMID- 29335790 TI - Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): origin, differentiation and functional ultrastructure of the oncospheral tegument and hook region membrane. AB - Both the oncospheral tegument and the hook region membrane (HRM) of Echinococcus multilocularis hexacanths originate from a syncytial binucleate complex that appears in the early stage of morphogenesis and organogenesis of the hexacanth larva. The primordium of this binucleate complex forms a binucleate syncytial cap or "calotte" situated beneath the inner envelope at one pole of the developing embryo. During oncospheral differentiation, the binucleate perikaryon of the syncytial cap is sunk progressively deeper into the central part of the embryo, but remains always connected with the distal cytoplasm by a tendrillar cytoplasmic connection or bridge. Following migration or sinking of the binucleate perikaryon, numerous cytoplasmic vesicles appear in the distal cytoplasm. These vesicles fuse progressively together and form a single large cavity or lacuna. The walls of this cavity are becoming at this point the walls of two delaminated layers: (1) the distal anucleated cytoplasmic layer is transformed into the oncospheral tegument and (2) the proximal thin cytoplasmic layer is transformed into the "hook region membrane". This delamination of the initially compact layer of distal cytoplasm into two layers seems to be closely associated with differentiation of oncospheral hooks, the elongating blades of which protrude progressively into a newly formed cavity. The pressure of hook blades on the hook region membrane appears to facilitate its further separation from the basal layer of distal cytoplasm which is transformed into the peripheral layer of oncospheral tegument. In the mature oncosphere, the surface of this peripheral layer forms a regular brush border of cytoplasmic processes or microvilli and represents the true body covering of the hexacanth. The very thin cytoplasmic connection between the peripheral layer of tegument and binucleate perikaryon appears only very seldom in the ultrathin sections as a narrow cytoplasmic strand and has a plasma membrane that is reinforced by a single row of cortical microtubules. The HRM covers only one pole of the oncosphere and is attached to the oncosphere surface. The HRM is clearly visible in the mature oncosphere and is draped over the hook blades, the sharp points of which are protected by moderately electron-dense caps. Comparison of the above morphology with that of TEM study of the tegument of adult cestodes shows a great similarity as well as homology in the body covering of both larval and adult cestodes. PMID- 29335791 TI - Behavior of C-reactive protein in association with surgery of facial fracture and the influence of dexamethasone. AB - PURPOSE: To clarify pre- and postoperative C-reactive protein (CRP) levels in patients with facial fractures and to investigate the influence of perioperatively administered dexamethasone on postoperative CRP levels. PATIENTS AND METHODS: Facial fracture patients were randomized to receive perioperatively a total dose of 30 mg of dexamethasone (Oradexon(r)), whereas patients in the control group received no glucocorticoid. The analysis included patients who had CRP measured pre- and postoperatively. RESULTS: A total of 73 adult patients with facial fractures were included in the final analysis. Mean CRP level was elevated preoperatively and the level increased further after surgery. However, postoperative CRP rise was significantly impeded by dexamethasone (p < 0.001), regardless of gender, age, treatment delay, site of fracture, surgical approach, and duration of surgery. CRP rise halved on the 1st postoperative day when dexamethasone was used. In addition, dexamethasone resulted in a CRP decrease on the 2nd postoperative day, whereas the CRP rise continued in the control group. CONCLUSIONS: CRP rise is a normal body response after facial fracture and surgery that can be markedly reduced with dexamethasone. CRP changes should be considered with caution if perioperative dexamethasone is used. PMID- 29335792 TI - Toward Exploring the Structure of Monolayer to Few-layer TaS2 by Efficient Ultrasound-free Exfoliation. AB - Tantalum disulfide nanosheets have attracted great interest due to its electronic properties and device applications. Traditional solution-ased ultrasonic process is limited by ultrasound which may cause the disintegration into submicron-sized flake. Here, an efficient multi-step intercalation and ultrasound-free process has been successfully used to exfoliate 1T-TaS2. The obtained TaS2 nanosheets reveal an average thickness of 3 nm and several micrometers in size. The formation of few-layer TaS2 nanosheets as well as monolayer TaS2 sheets is further confirmed by atomic force microscopy images. The few-layer TaS2 nanosheets remain the 1T structure, whereas monolayer TaS2 sheets show lattice distortion and may adopt the 1H-like structure with trigonal prism coordination. PMID- 29335793 TI - Accuracy of emergency department triage using the Emergency Severity Index and independent predictors of under-triage and over-triage in Brazil: a retrospective cohort analysis. AB - BACKGROUND: Emergency department (ED) triage is performed to prioritize care for patients with critical and time-sensitive illness. Triage errors create opportunity for increased morbidity and mortality. Here, we sought to measure the frequency of under- and over-triage of patients by nurses using the Emergency Severity Index (ESI) in Brazil and to identify factors independently associated with each. METHODS: This was a single-center retrospective cohort study. The accuracy of initial ESI score assignment was determined by comparison with a score entered at the close of each ED encounter by treating physicians with full knowledge of actual resource utilization, disposition, and acute outcomes. Chi square analysis was used to validate this surrogate gold standard, via comparison of associations with disposition and clinical outcomes. Independent predictors of under- and over-triage were identified by multivariate logistic regression. RESULTS: Initial ESI-determined triage score was classified as inaccurate for 16,426 of 96,071 patient encounters. Under-triage was associated with a significantly higher rate of admission and critical outcome, while over-triage was associated with a lower rate of both. A number of factors identifiable at time of presentation including advanced age, bradycardia, tachycardia, hypoxia, hyperthermia, and several specific chief complaints (i.e., neurologic complaints, chest pain, shortness of breath) were identified as independent predictors of under-triage, while other chief complaints (i.e., hypertension and allergic complaints) were independent predictors of over-triage. CONCLUSIONS: Despite rigorous and ongoing training of ESI users, a large number of patients in this cohort were under- or over-triaged. Advanced age, vital sign derangements, and specific chief complaints-all subject to limited guidance by the ESI algorithm were particularly under-appreciated. PMID- 29335795 TI - Combined effects of predator cues and competition define habitat choice and food consumption of amphipod mesograzers. AB - Predation has direct impact on prey populations by reducing prey abundance. In addition, predator presence alone can also have non-consumptive effects on prey species, potentially influencing their interspecific interactions and thus the structure of entire assemblages. The performance of potential prey species may, therefore, depend on both the presence of predators and competitors. We studied habitat use and food consumption of a marine mesograzer, the amphipod Echinogammarus marinus, in the presence/absence of a fish mesopredator and/or an amphipod competitor. The presence of the predator affected both habitat choice and food consumption of the grazer, indicating a trade-off between the use of predator-free space and food acquisition. Without the predator, E. marinus were distributed equally over different microhabitats, whereas in the presence of the predator, most individuals chose a sheltered microhabitat and reduced their food consumption. Furthermore, habitat choice of the amphipods changed in the presence of interspecific competitors, also resulting in reduced feeding rates. The performance of E. marinus is apparently driven by trait-mediated direct and indirect effects caused by the interplay of predator avoidance and competition. This highlights the importance of potential non-consumptive impacts of predators on their prey organisms. The flexible responses of small invertebrate consumers to the combined effects of predation and competition potentially lead to changes in the structure of coastal ecosystems and the multiple species interactions therein. PMID- 29335794 TI - Effect of a calcitonin gene-related peptide-binding L-RNA aptamer on neuronal activity in the rat spinal trigeminal nucleus. AB - BACKGROUND: Calcitonin gene-related peptide (CGRP) plays a major role in the pathogenesis of migraine and other primary headaches. Spinal trigeminal neurons integrate nociceptive afferent input from trigeminal tissues including intracranial afferents, and their activity is thought to reflect facial pain and headache in man. CGRP receptor inhibitors and anti-CGRP antibodies have been demonstrated to be therapeutically effective in migraine. In parallel, CGRP receptor inhibition has been shown to lower spinal trigeminal neuron activity in animal models of meningeal nociception. METHODS: In a rat model of meningeal nociception, single cell activity of neurons in the spinal trigeminal nucleus with meningeal afferent input was recorded to test a further pharmacological approach, scavenging CGRP with a CGRP-binding L-RNA oligonucleotide, the L aptamer NOX-C89. Cumulative ascending doses of NOX-C89 were intravenously infused. RESULTS: Spontaneous activity of spinal trigeminal neurons did not change after 0.05 mg/kg NOX-C89, however, after additional infusion of 0.5 mg/kg and 5 mg/kg NOX-C89, spontaneous activity was dose-dependently reduced. Identical doses of a control L-aptamer had no effect. This pharmacological effect of NOX C89 was observed 10-25 min after infusion, but no difference was detected in the period 0-5 min. For comparison, the previously investigated CGRP receptor antagonist olcegepant had reduced activity within 5 min after infusion. Alongside the reduced spontaneous activity, after infusion of NOX-C89 the heat-induced neuronal activity was abolished. CONCLUSIONS: Scavenging CGRP by mirror-image RNA aptamers provides further evidence that this approach can be used to control spinal trigeminal activity. PMID- 29335796 TI - Association between frailty and bone loss in patients undergoing maintenance hemodialysis. AB - Frailty is significantly associated with bone loss in the general population. However, it is unclear whether this association also exists in patients undergoing hemodialysis who have chronic kidney disease-mineral and bone disorder (CKD-MBD). This study aimed to assess the association between frailty and bone loss in patients undergoing hemodialysis. This cross-sectional study included 214 (90 women, 124 men) Japanese outpatients undergoing maintenance hemodialysis three times per week, with a mean age of 67.1 years (women) and 66.8 years (men). Frailty was defined based on criteria set forth by the Cardiovascular Health Study (CHS)-19 (21.1%) women and 47 (37.9%) men were robust, 41 (45.6%) women and 43 (34.7%) men were pre-frail, and 30 (33.3%) women and 34 (27.4%) men were frail. For bone mass, quantitative ultrasound (QUS) parameters (speed of sound, broadband ultrasound attenuation, stiffness index) of the calcaneus were measured. The association between frailty and QUS parameters was determined separately for women and men using multivariate analysis of covariance (ANCOVA), with adjustments for clinical characteristics including age, body mass index, hemodialysis vintage, diabetes, current smoking, serum albumin, phosphate, corrected calcium, intact parathyroid hormone, and medication for CKD-MBD (vitamin D receptor activator, calcimimetics). ANCOVA revealed that all QUS parameters declined significantly with increasing levels of frailty in both sexes (P < 0.05). In conclusion, frailty (as defined by CHS criteria) should be considered a risk factor for bone loss in patients undergoing hemodialysis. PMID- 29335798 TI - 3D morphological change of skull base and fronto-temporal soft-tissue in the patients with unicoronal craniosynostosis after fronto-orbital advancement. AB - PURPOSE: This study aims to comprehensively evaluate the deformation of the skull base and fronto-temporal soft tissue in the patients with anterior plagiocephaly over 1 year of age by three-dimensional (3D) imaging after fronto-orbital advancement (FOA). METHODS: We quantitatively analyzed the surgical results and outcome of FOA performed in 10 patients with anterior plagiocephaly. The measurements of the skull base and fronto-temporal soft tissue were performed based on 3D computed tomography (CT) scan. We assessed symmetry of the skull base and fronto-temporal soft tissue change. RESULTS: The mean age of patients at FOA was 38.9 months. A significant asymmetry of the skull base was found in all the patients. The growth of the anterior and middle fossae was restricted and the deformation of the fronto-temporal region was marked by soft tissue measurements in different grades. On the follow-up CT images 23.6 months after surgery, there was prominent change (p < 0.05) between the two hemibases (CSO^ ratio) and between the lengths and angles of the anterior and middle cranial hemi-fossae (CX, CSX^, XSM^, XM ratio), especially in grade IIA. Anterior cranial vault asymmetry index obviously decreased to - 1.2 from 12% after surgery (p < 0.05). What's more, ACA^ was also proved to be less after surgical correction (19.91 degrees versus 8.29 degrees , p < 0.01) in grade IIA. The change of fronto temporal soft tissue was significant such as the frontal angle, the angle of the frontal plane, the fontal-temporal angle, and the angle of the temporal plane in different grades. CONCLUSIONS: The asymmetry of the skull base and the deformation of the fronto-temporal region can be presented by intracranial view at over 1 year of age in different grades. FOA can correct the skeletal malformation of the fronto-temporal region as well as soft tissue and the asymmetry of the skull base was improved after surgical treatment. PMID- 29335799 TI - Precisely Defined Polymers for Efficient Gene Delivery. AB - Gene therapy requires successful delivery of therapeutic nucleic acids into target cells; thus, efficient and safe gene delivery carriers are crucial to its success. Although many polymeric materials have shown their potential as effective nucleic acid carriers, the inherent heterogeneity and polydispersity of these polymers hinder their application in clinical studies because of difficulties in their further precise modification, structure-activity relationship study, as well as consistent manufacturing. Therefore, precisely defined polymers, with potential for site-specific optimization according to structure-activity relationship information and highly controllable production, have been extensively investigated. In this review, we focus on the design and development of precisely defined polymers for efficient gene delivery, illustrated with examples including dendrimers, peptide-based polymers, and sequence-defined oligoaminoamide oligomers. PMID- 29335797 TI - High-intensity aerobic interval training can lead to improvement in skeletal muscle power among in-hospital patients with advanced heart failure. AB - This study investigated the effectiveness and safety of interval training during in-hospital treatment of patients with advanced heart failure. Twenty-four consecutive patients with advanced symptomatic heart failure who were referred for cardiac transplant evaluation were recruited. After performing aerobic exercise for approximate intensity, high-intensity interval training (HIIT) was performed. The protocol consisted of 3 or 4 sessions of 1-min high-intensity exercise aimed at 80% of peak VO2 or 80% heart rate reserve, followed by 4-min recovery periods of low intensity. In addition to the necessary laboratory data, hand grip strength and knee extensor strength were evaluated at the start of exercise training and both at the start and the end of HIIT. Knee extensor strength was standardized by body weight. The BNP level at the start of exercise training was 432 (812) pg/mL and it significantly decreased to 254 (400) pg/mL (p < 0.001) at the end of HIIT. Hand grip strength did not change during course. By contrast, knee extensor strength significantly increased during HIIT [4.42 +/- 1.43 -> 5.28 +/- 1.45 N/kg, p < 0.001], whereas the improvement of knee extensor strength was not significant from the start of exercise training to the start of HIIT. In addition, the change in knee extensor strength during HIIT was significantly associated with the hemoglobin A1c level at the start of exercise (R = - 0.55; p = 0.015). HIIT has a positive impact on skeletal muscle strength among in-hospital patients with advanced heart failure. PMID- 29335800 TI - Enrichment and characterization of a bacterial mixture capable of utilizing C mannosyl tryptophan as a carbon source. AB - C-Mannosylation, a protein-modification found in various eukaryotes, involves the attachment of a single mannose molecule to selected tryptophan residues of proteins. Since C-mannosyl tryptophan (CMW) was detected in human urine, it is generally thought that CMW is not catabolized inside our body and instead is excreted via the urine. This paper reports enrichment of a bacterial consortium from soil that degrades CMW. The bacteria grew in minimal medium supplemented with CMW as the carbon source. Interestingly, even after successive clonal picks of individual colonies, several species were still present in each colony as revealed by 16S rRNA gene sequence analysis, indicating that a single species may not be responsible for this activity. A next generation sequencing (NGS) analysis was therefore carried out in order to determine which bacteria were responsible for the catabolism of CMW. It was found that a species of Sphingomonadaceae family, but not others, increased with simultaneous decrease of CMW in the media, suggesting that this species is most likely the one that is actively involved in the degradation of CMW. PMID- 29335801 TI - IgM Augments Complement Bactericidal Activity with Serum from a Patient with a Novel CD79a Mutation. AB - Antibody replacement therapy for patients with antibody deficiencies contains only IgG. As a result, concurrent IgM and IgA deficiency present in a large proportion of antibody deficient patients persists. Especially patients with IgM deficiency remain at risk for recurrent infections of the gastrointestinal and respiratory tract. The lack of IgM in the current IgG replacement therapy is likely to contribute to the persistence of these mucosal infections because this antibody class is especially important for complement activation on the mucosal surface. We evaluated whether supplementation with IgM increased serum bactericidal capacity in vitro. Serum was collected from a patient with agammaglobulinemia and supplemented with purified serum IgM to normal levels. Antibody and complement deposition on the bacterial surface was determined by multi-color flow cytometry. Bacterial survival in serum was determined by colony forming unit counts. We present a patient previously diagnosed with agammaglobulinemia due to CD79A (Igalpha) deficiency revealing a novel pathogenic insertion variant in the CD79a gene (NM_001783.3:c.353_354insT). Despite IgG replacement therapy and antibiotic prophylaxis, this patient developed a Campylobacter jejuni spondylodiscitis of lumbar vertebrae L4-L5. We found that serum IgM significantly contributes to complement activation on the bacterial surface of C. jejuni. Furthermore, supplementation of serum IgM augmented serum bactericidal activity significantly. In conclusion, supplementation of intravenous IgG replacement therapy with IgM may potentially offer greater protection against bacterial infections, also in the context of increasing antibiotic resistance. PMID- 29335802 TI - The clinical relevance of drug-drug interaction between co-trimoxazole and sacubitril/valsartan treatment in a heart failure patient: a case report and overview of mechanisms and management in clinical practice. PMID- 29335803 TI - Contribution of transposable elements and distal enhancers to evolution of human specific features of interphase chromatin architecture in embryonic stem cells. AB - Transposable elements have made major evolutionary impacts on creation of primate specific and human-specific genomic regulatory loci and species-specific genomic regulatory networks (GRNs). Molecular and genetic definitions of human-specific changes to GRNs contributing to development of unique to human phenotypes remain a highly significant challenge. Genome-wide proximity placement analysis of diverse families of human-specific genomic regulatory loci (HSGRL) identified topologically associating domains (TADs) that are significantly enriched for HSGRL and designated rapidly evolving in human TADs. Here, the analysis of HSGRL, hESC-enriched enhancers, super-enhancers (SEs), and specific sub-TAD structures termed super-enhancer domains (SEDs) has been performed. In the hESC genome, 331 of 504 (66%) of SED-harboring TADs contain HSGRL and 68% of SEDs co-localize with HSGRL, suggesting that emergence of HSGRL may have rewired SED-associated GRNs within specific TADs by inserting novel and/or erasing existing non-coding regulatory sequences. Consequently, markedly distinct features of the principal regulatory structures of interphase chromatin evolved in the hESC genome compared to mouse: the SED quantity is 3-fold higher and the median SED size is significantly larger. Concomitantly, the overall TAD quantity is increased by 42% while the median TAD size is significantly decreased (p = 9.11E-37) in the hESC genome. Present analyses illustrate a putative global role for transposable elements and HSGRL in shaping the human-specific features of the interphase chromatin organization and functions, which are facilitated by accelerated creation of novel transcription factor binding sites and new enhancers driven by targeted placement of HSGRL at defined genomic coordinates. A trend toward the convergence of TAD and SED architectures of interphase chromatin in the hESC genome may reflect changes of 3D-folding patterns of linear chromatin fibers designed to enhance both regulatory complexity and functional precision of GRNs by creating predominantly a single gene (or a set of functionally linked genes) per regulatory domain structures. Collectively, present analyses reveal critical evolutionary contributions of transposable elements and distal enhancers to creation of thousands primate- and human-specific elements of a chromatin folding code, which defines the 3D context of interphase chromatin both restricting and facilitating biological functions of GRNs. PMID- 29335804 TI - Identification of a functional toxin-antitoxin system located in the genomic island PYG1 of piezophilic hyperthermophilic archaeon Pyrococcus yayanosii. AB - Toxin-antitoxin (TA) system is bacterial or archaeal genetic module consisting of toxin and antitoxin gene that be organized as a bicistronic operon. TA system could elicit programmed cell death, which is supposed to play important roles for the survival of prokaryotic population under various physiological stress conditions. The phage abortive infection system (AbiE family) belongs to bacterial type IV TA system. However, no archaeal AbiE family TA system has been reported so far. In this study, a putative AbiE TA system (PygAT), which is located in a genomic island PYG1 in the chromosome of Pyrococcus yayanosii CH1, was identified and characterized. In Escherichia coli, overexpression of the toxin gene pygT inhibited its growth while the toxic effect can be suppressed by introducing the antitoxin gene pygA in the same cell. PygAT also enhances the stability of shuttle plasmids with archaeal plasmid replication protein Rep75 in E. coli. In P. yayanosii, disruption of antitoxin gene pygA cause a significantly growth delayed under high hydrostatic pressure (HHP). The antitoxin protein PygA can specifically bind to the PygAT promoter region and regulate the transcription of pygT gene in vivo. These results show that PygAT is a functional TA system in P. yayanosii, and also may play a role in the adaptation to HHP environment. PMID- 29335805 TI - Effects of nicotine on the biosynthesis of carotenoids in halophilic Archaea (class Halobacteria): an HPLC and Raman spectroscopy study. AB - Nicotine has a profound influence on the carotenoid metabolism in halophilic Archaea of the class Halobacteria. In a study of Halobacterium salinarum, Haloarcula marismortui and Halorubrum sodomense, using different analytical techniques to monitor the production of different carotenoids as a function of the presence of nicotine, we showed that the formation of alpha-bacterioruberin was inhibited in all. In Hbt. salinarum, addition of nicotine led to a significant change in the color of the culture due to the accumulation of lycopene, in addition to the formation of bisanhydrobacterioruberin which does not differ in color from alpha-bacterioruberin. Very little or no lycopene was formed in Har. marismortui and in Hrr. sodomense; instead bisanhydrobacterioruberin was the only major carotenoid found in nicotine-amended cultures. The findings are discussed in the framework of the recently elucidated biochemical pathway for the formation of the different carotenoid pigments encountered in the Halobacteria. PMID- 29335806 TI - Assessment of ocular toxoplasmosis patients reported at a tertiary center in the northeast of Iran. AB - PURPOSE: Ocular toxoplasmosis, which is caused by the single-cell parasite Toxoplasma gondii, is currently the most significant cause of posterior uveitis in the world. No previous studies have described the prevalence and clinical features of ocular toxoplasmosis in the northeast of Iran. The purpose of the current study was to address this gap. METHODS: In this retrospective study, the medical records of 488 uveitis patients who presented to the Khatam-al-Anbia Eye Hospital of Mashhad University of Medical Sciences, a tertiary ophthalmology center in the northeast of Iran, between January 2013 and December 2015 were evaluated. The clinical features and risk factors of 99 (20%) consecutive patients with ocular toxoplasmosis were extracted. RESULTS: Ninety-nine including 53 (53.5%) female and 46 (46.5%) male patients with ocular toxoplasmosis were included in the analysis. Reduced vision (77%) and floaters (15.2%) were the most common presenting symptoms. The age category that was most affected by ocular toxoplasmosis was 20-40 years (range: 11-65 years) with a mean age of 27.2. All patients had retinochoroiditis, but just two had anterior uveitis. All of the extracted patients, with the exception of three patients, had unilateral involvement. None of the patients had any other medical disorders with the exception of one woman, who had diabetes. Only four recurring ocular toxoplasmosis patients were referred to the education hospital during the study. Serology data were available for just 32 patients, of which 31 (96.8%) were IgG positive, and 1 (3.2%) was IgM positive. CONCLUSION: Toxoplasma gondii was responsible for 20% of the patients of uveitis that presented to the largest ophthalmology center in the northeast of Iran. There is a high incidence of patients of ocular toxoplasmosis in the northeast of Iran, and it is a significant cause of uveitis and visual impairment in this area. PMID- 29335807 TI - Assessment of in vitro cytotoxic and genotoxic activities of some trimethoprim conjugates. AB - Trimethoprim, a commonly used antibacterial agent, is widely applied in the treatment of variety of infections in human. A few studies have demonstrated an extensive exposure of man to antibiotics, but there is still a lack of data for cytotoxic effects including nephrotoxicity, gastrointestinal toxicity, hematotoxicity, neurotoxicity and ototoxicity. The main purpose behind this study was to determine cytotoxic and genotoxic activities of trimethoprim (1), trimethoprim with maleic acid (2) and trimethoprim in conjugation with oxalic acid dihydrate (3). The cytotoxic effects of these three conjugates were elucidated by employing 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazoium bromide (MTT) assay using embryonic rat fibroblast-like cell line (F2408) and H ras oncogene activated embryonic rat fibroblast-like cancer cell line (5RP7). Additionally, determination of genotoxic activity of these three compounds were studied by using cytokinesis blocked micronucleus assay (CBMN) in human lymphocytes. The results demonstrated that trimethoprim alone and its combination with other compounds are able to induce both cytotoxic and genotoxic damage on cultured cells (F2408, 5RP7, human lymphocytes). PMID- 29335808 TI - Perfluorooctanoic acid impaired glucose homeostasis through affecting adipose AKT pathway. AB - Perfluorooctanoic acid (PFOA) is commonly applied in manufactured products, and its potential health risk is concerned greatly. Increasing evidences have indicated PFOA-induced liver dysfunction. However, detailed molecular mechanism has not been completely identified. In this study, we aimed to investigate the mechanical association between PFOA exposure and AKT pathway in white adipose tissue. As results, PFOA-treated mice showed increased blood glucose and insulin levels, and induced insulin resistance. In addition, serum levels of leptin and adiponectin in PFOA-treated mice were elevated. As shown in histological examination, increased cell death counts in PFOA-treated adipose were observed, as well as ultrastructural impairment in adipose cells was found. Further, immunohistochemical stains exhibited GLUT4, p-AKT positive cells were down regulated in PFOA-treated adipose, while PTEN immune-labeled cells were reduced. In validated data, RT-PCR assay suggested adipose AKT mRNA was down-regulated in PFOA-treated mice, and PTEN mRNA was increased. Western blot data showed that intracellular PTEN protein level in PFOA-treated adipose was up-regulated, while phosphorylation of AKT, GSK3beta levels were lowered dose-dependently. Taken together, the present findings indicate that PFOA impaired glucose homeostasis via negatively regulating AKT pathway in white adipose tissue. PMID- 29335809 TI - Healthcare and Social Services Providers Who Serve Sexual and Gender Minorities in a U.S.-Mexico Border City. AB - Sexual and gender minorities, including lesbian, gay, bisexual, transgender, and queer (LGBTQ) individuals, experience barriers to healthcare as a result of stigma, discrimination, and poor cultural competence by healthcare and social services providers (HCSSP). The purpose of the study is to increase access to care and services for the LGBTQ community in a U.S.-Mexico border city by identifying LGBTQ-friendly HCSSP. A survey, developed based on concerns voiced in a predominantly Hispanic LGBTQ community, was administered to HCSSP and used to create a referral list, "The Purple Pages of El Paso" (PPoEP). Overall, 77 HCSSP have responded and 43 are included in the most recent version of the PPoEP. This model for developing a referral list of providers can be adapted in areas where LGBTQ communities face similar barriers to care and services. To be effective in reducing barriers to care, PPoEP must be updatable and sustainable. PMID- 29335810 TI - Sexual and Reproductive Health Education Needs, Gender Roles Attitudes and Acceptance of Couple Violence According to Engaged Men and Women. AB - This descriptive study was aimed to evaluate the attitudes of the engaged men and women who are of legal age to marry towards gender roles and acceptance of couple violence, and determine their sexual/reproductive health education needs. It was conducted in two marriage registry offices in Ankara, Turkey. The study sample consisted of 740 participants. Data were collected by using semi-structured form, Gender Roles Attitude Scale and Acceptance of Couple Violence Scale. It was found that the engaged couples had educational needs concerning sexual/reproductive health; socio-demographic characteristics such as gender, age, education, residence, and income level created significant differences in the attitudes related to accepting gender roles and violence; and having an egalitarian attitude towards gender roles decreased the rate of accepting violence between the couples. Results indicate that premarital counseling is a promising strategy to support engaged couples' sexual/reproductive health needs, and increase their awareness about gender based couple violence in communities. PMID- 29335811 TI - Surgical stress response and promotion of metastasis in colorectal cancer: a complex and heterogeneous process. AB - Surgery remains the curative treatment modality for colorectal cancer in all stages, including stage IV with resectable liver metastasis. There is emerging evidence that the stress response caused by surgery as well as other perioperative therapies such as anesthesia and analgesia may promote growth of pre-existing micro-metastasis or potentially initiate tumor dissemination. Therapeutically targeting the perioperative period may therefore reduce the effect that surgical treatments have in promoting metastases, for example by combining beta-adrenergic receptor antagonists and cyclooxygenase-2 (COX-2) inhibitors in the perioperative setting. In this paper, we highlight some of the mechanisms that may underlie surgery-related metastatic development in colorectal cancer. These include direct tumor spillage at the time of surgery, suppression of the anti-tumor immune response, direct stimulatory effects on tumor cells, and activation of the coagulation system. We summarize in more detail results that support a role for catecholamines as major drivers of the pro-metastatic effect induced by the surgical stress response, predominantly through activation of beta adrenergic signaling. Additionally, we argue that an improved understanding of surgical stress-induced dissemination, and more specifically whether it impacts on the level and nature of heterogeneity within residual tumor cells, would contribute to the successful clinical targeting of this process. Finally, we provide a proof-of-concept demonstration that ex-vivo analyses of colorectal cancer patient-derived samples using RGB-labeling technology can provide important insights into the heterogeneous sensitivity of tumor cells to stress signals. This suggests that intra-tumor heterogeneity is likely to influence the efficacy of perioperative beta-adrenergic receptor and COX-2 inhibition, and that ex-vivo characterization of heterogeneous stress response in tumor samples can synergize with other models to optimize perioperative treatments and further improve outcome in colorectal and other solid cancers. PMID- 29335812 TI - Sperm telomere length in donor samples is not related to ICSI outcome. AB - PURPOSE: Variations in sperm telomere length (STL) have been associated with altered sperm parameters, poor embryo quality, and lower pregnancy rates, but for normozoospermic men, STL relevance in IVF/ICSI is still uncertain. Moreover, in all studies reported so far, each man's STL was linked to the corresponding female partner characteristics. Here, we study STL in sperm donor samples, each used for up to 12 women, in order to isolate and determine the relationship between STL and reproductive outcomes. METHODS: Relative STL was determined by qPCR in 60 samples used in a total of 676 ICSI cycles. Univariable and multivariable statistical analyses were used to study the STL effect on fertilization rate; embryo morphology; biochemical, clinical, and ongoing pregnancy rates; and live birth (LB) rates. RESULTS: The average STL value was 4.5 (relative units; SD 1.9; range 2.4-14.2). Locally weighted scatterplot smoothing regression and the rho-Spearman test did not reveal significant correlations between STL and the outcomes analyzed. STL was not different between cycles resulting or not in pregnancy and LB (Mann-Whitney U test, p > 0.05). No significant effect of STL on reproductive outcomes was found, with the OR for each unit increase in STL (95% CI) of 0.94 (0.86-1-04), 0.99 (0.9-1.09), 0.98 (0.89-1.09), and 0.93 (0.8-1.06) for biochemical, clinical, and ongoing pregnancy and LB, respectively. The multilevel analysis confirmed that the effect of STL on fertilization; biochemical, clinical, and ongoing pregnancy; and LB was not significant (p > 0.05). CONCLUSION: After addressing STL independently from female variables, results show that STL measurement is not useful to predict reproductive outcomes in ICSI cycles using donor semen. PMID- 29335814 TI - ? PMID- 29335817 TI - Repurposing existing drugs for new AMPK activators as a strategy to extend lifespan: a computer-aided drug discovery study. AB - Dietary restriction is one of the several ways which could putatively extend organisms' lifespan, ranging from Saccharomyces cerevisiae to rodents, by activating the AMP-activated protein kinase (AMPK), an ATP/AMP sensor. Extensive researches have shown that aging reduces sensibility of AMPK and eventually causes energy imbalance in cells. Research in mammals' AMPK depicts that this signaling molecule could control autophagy, improve cellular stress resistance and suppress inflammatory responses. Hence, in this study we performed a drug repurposing of 1908 FDA-approved drugs in order to discover putative safe activators of AMPK and to find new applications for existing drugs. For this purpose, FDA-approved drugs were screened by virtual screening and the ligand protein interactions were carefully inspected. Moreover, through MM/PBSA analysis, the binding affinity of hit compounds in gamma and alphabeta binding sites were investigated. As Cangrelor, Nacitentan, Levoleucovorin and Glisoxepide had lower binding affinities; we predicted that they would probably prove to be more potential activators than C2. However, hit-compounds in alphabeta binding site, exhibited higher unfavorable binding affinity. Hence, present findings can prove to be valuable for discovering new activators for AMPK. PMID- 29335813 TI - Organic acidurias in adults: late complications and management. AB - Organic acidurias (synonym, organic acid disorders, OADs) are a heterogenous group of inherited metabolic diseases delineated with the implementation of gas chromatography/mass spectrometry in metabolic laboratories starting in the 1960s and 1970s. Biochemically, OADs are characterized by accumulation of mono-, di- and/or tricarboxylic acids ("organic acids") and corresponding coenzyme A, carnitine and/or glycine esters, some of which are considered toxic at high concentrations. Clinically, disease onset is variable, however, affected individuals may already present during the newborn period with life-threatening acute metabolic crises and acute multi-organ failure. Tandem mass spectrometry based newborn screening programmes, in particular for isovaleric aciduria and glutaric aciduria type 1, have significantly reduced diagnostic delay. Dietary treatment with low protein intake or reduced intake of the precursor amino acid(s), carnitine supplementation, cofactor treatment (in responsive patients) and nonadsorbable antibiotics is commonly used for maintenance treatment. Emergency treatment options with high carbohydrate/glucose intake, pharmacological and extracorporeal detoxification of accumulating toxic metabolites for intensified therapy during threatening episodes exist. Diagnostic and therapeutic measures have improved survival and overall outcome in individuals with OADs. However, it has become increasingly evident that the manifestation of late disease complications cannot be reliably predicted and prevented. Conventional metabolic treatment often fails to prevent irreversible organ dysfunction with increasing age, even if patients are considered to be "metabolically stable". This has challenged our understanding of OADs and has elicited the discussion on optimized therapy, including (early) organ transplantation, and long-term care. PMID- 29335816 TI - Organ reserve, excess metabolic capacity, and aging. AB - "Organ reserve" refers to the ability of an organ to successfully return to its original physiological state following repeated episodes of stress. Clinical evidence shows that organ reserve correlates with the ability of older adults to cope with an added workload or stress, suggesting a role in the process of aging. Although organ reserve is well documented clinically, it is not clearly defined at the molecular level. Interestingly, several metabolic pathways exhibit excess metabolic capacities (e.g., bioenergetics pathway, antioxidants system, plasticity). These pathways comprise molecular components that have an excess of quantity and/or activity than that required for basic physiological demand in vivo (e.g., mitochondrial complex IV or glycolytic enzymes). We propose that the excess in mtDNA copy number and tandem DNA repeats of telomeres are additional examples of intrinsically embedded structural components that could comprise excess capacity. These excess capacities may grant intermediary metabolism the ability to instantly cope with, or manage, added workload or stress. Therefore, excess metabolic capacities could be viewed as an innate mechanism of adaptability that substantiates organ reserve and contributes to the cellular defense systems. If metabolic excess capacities or organ reserves are impaired or exhausted, the ability of the cell to cope with stress is reduced. Under these circumstances cell senescence, transformation, or death occurs. In this review, we discuss excess metabolic and structural capacities as integrated metabolic pathways in relation to organ reserve and cellular aging. PMID- 29335818 TI - Dorsal shaving affects concentrations of faecal cortisol metabolites in lactating golden hamsters. AB - Breeding of golden hamsters is classically performed at thermal conditions ranging from 20 to 24 degrees C. However, growing evidence suggests that lactating females suffer from heat stress. We hypothesised that shaving females dorsally to maximise heat dissipation may reduce stress during reproduction. We thus compared faecal cortisol metabolites (FCM) from shaved golden hamster mothers with those from unshaved controls. We observed significantly lower FCM levels in the shaved mothers (F1,22 = 8.69, p = 0.0075) pointing to lower stress due to ameliorated heat dissipation over the body surface. In addition, we observed 0.4 degrees C lower mean subcutaneous body temperatures in the shaved females, although this effect did not reach significance (F1,22 = 1.86, p = 0.18). Our results suggest that golden hamsters having body masses being more than four times that of laboratory mice provide a very interesting model to study aspects of lactation and heat production at the same time. PMID- 29335819 TI - NMDA Receptor GluN2 Subtypes Control Epileptiform Events in the Hippocampus. AB - NMDA receptors (NMDARs) play a key role in synaptic plasticity and excitotoxicity. Subtype-specific role of NMDAR in neural disorders is an emerging area. Recent studies have revealed that mutations in NMDARs are a cause for epilepsy. Hippocampus is a known focal point for epilepsy. In hippocampus, expression of the NMDAR subtypes GluN1/GluN2A and GluN1/GluN2B is temporally regulated. However, the pharmacological significance of these subtypes is not well understood in epileptic context/models. To investigate this, epilepsy was induced in hippocampal slices by the application of artificial cerebrospinal fluid that contained high potassium but no magnesium. Epileptiform events (EFEs) were recorded from the CA1 and DG areas of hippocampus with or without subtype specific antagonists. Irrespective of the age group, CA1 and DG showed epileptiform activity. The NMDAR antagonist AP5 was found to reduce the number of EFEs significantly. However, the application of subtype-specific antagonists (TCN 201 for GluN1/GluN2A and Ro 25-69811 for GluN1/GluN2B) revealed that EFEs had area-specific and temporal components. In slices from neonates, EFEs in CA1 were effectively reduced by Ro 25-69811, but were largely insensitive to TCN 201. In contrast, EFEs in DG were equally sensitive to both of the subtype-specific antagonists. However, the differential sensitivity for the antagonists observed in neonates was absent in later developmental stages. The study provides a functional insight into the NMDAR subtype-dependent contribution of EFEs in hippocampus of young rats, which may have implications in treating childhood epilepsy and avoiding unnecessary side effects of broad spectrum antagonists. PMID- 29335820 TI - How much do we know about hemolytic capability of pathogenic Candida species? AB - Hemolytic factor production by pathogenic Candida species is considered an important attribute in promoting survival within the mammal host through the ability to assimilate iron from the hemoglobin-heme group. Hemolytic capability has been evaluated for Candida species based on hemolysis zones on plate assay, analysis of hemolytic activity in liquid culture medium, and hemolysis from cell free culture broth. The production of hemolytic factor is variable among Candida species, where C. parapsilosis is the less hemolytic species. In general, no intraspecies differences in beta-hemolytic activities are found among isolates belonging to C. albicans, C. glabrata, C. krusei, C. tropicalis, and C. parapsilosis. The production of hemolytic factor by Candida species is affected by several factors such as glucose supplementation in the culture medium, blood source, presence of erythrocytes and hemoglobin, and presence of electrolytes. On the basis of existing achievements, more researches are still needed in order to extend our knowledge about the biochemical nature of hemolytic molecules produced by distinct Candida species, the mechanism of hemolysis, and the molecular basis of the hemolytic factor expression. PMID- 29335821 TI - Maternal incarceration, child protection, and infant mortality: a descriptive study of infant children of women prisoners in Western Australia. AB - BACKGROUND: There are no population statistics collected on a routine basis on the children of prisoners in Australia. Accordingly, their potential vulnerability to adverse outcomes remains unclear. This study draws on linked administrative data to describe the exposure of children aged less than 2 years to maternal imprisonment in Western Australia, their contact with child protection services, and infant mortality rates. RESULTS: In Western Australia, 36.5 per 1000 Indigenous (n = 804) and 1.3 per 1000 non-Indigenous (n = 395) children born between 2001 and 2011 had mothers imprisoned after birth to age 2 years. One-third of infants' mothers had multiple imprisonments (maximum of 11). Nearly half (46%) of prison stays were for <=2 weeks, 12% were between 2 and 4 weeks, 14% were for 1-3 months, and 28% were longer than three months. Additionally, 17.4 per 1000 Indigenous (n = 383) and 0.5 per 1000 non-Indigenous (n = 150) children had mothers imprisoned during pregnancy. Half of the children with a history of maternal incarceration in pregnancy to age 2 years came into contact with child protection services by their second birthday, with 31% of Indigenous and 35% of non-Indigenous children entering out-of-home care. Rates of placement in care were significantly higher for Indigenous children (Relative Risk (RR) 27.30; 95%CI 19.19 to 38.84; p < .001) and for non-Indigenous children (RR 110.10; 95%CI 61.70 to 196.49; p < .001) with a history of maternal imprisonment compared to children of mothers with no corrections record. Infant mortality for children whose mothers were imprisoned up to 5 years before birth or within their first year after birth was higher than for children of mothers with no corrections record for both Indigenous (RR 2.36; 95%CI 1.41 to 3.95; p = .001) and non-Indigenous children (RR 2.28; 95%CI 0.75 to 6.97; p = .147). CONCLUSIONS: This study highlights the particular vulnerability of children whose mothers have been incarcerated and the importance of considering their needs within corrective services policies and procedures. Prison may present an opportunity to identify and work with vulnerable families to help improve outcomes for children as well as mothers. PMID- 29335822 TI - Emergency department throughput: an intervention. AB - Shortening emergency department (ED) boarding time and managing hospital bed capacity by expediting the inpatient discharge process have been challenging for hospitals nationwide. The objective of this study is was to explore the effect of an innovative prospective intervention on hospital workflow, specifically on early inpatient discharges and the ED boarding time. The intervention consisted of a structured nursing "admission discharge transfer" (ADT) protocol receiving new admissions from the ED and helping out floor nursing with early discharges. ADT intervention was implemented in a 38-bed hospitalist run inpatient unit at an academic hospital. The study population consisted of 4486 patients (including inpatient and observation admissions) who were hospitalized to the medicine unit from March 2013-March 2014. Of these hospitalizations, 2259 patients received the ADT intervention. Patients' demographics, discharge and ED boarding data were collected for from March 4, 2013 to March 31, 2014 for both intervention and control groups (28 weeks each). Chi-square and unpaired t tests were utilized to compare population characteristics. Poisson regression analysis was conducted to estimate the association between intervention and hospital length of stay adjusted for differences in patient demographics. Mean age of the study population was 58.6 years, 23% were African Americans and 55% were women. A significant reduction in ED boarding time (p < 0.001) and improvement in early (before 2 PM) hospital discharges (p = 0.01) were noticed among patients in the intervention groups. There was a slight but significant reduction in hospital length of stay for observation patients in the intervention group; however, no such difference was noted for inpatient admissions. Our study showed that dedicating nursing resources towards ED-boarded patients and early inpatient discharges can significantly improve hospital workflow and reduce hospital length of stay. PMID- 29335823 TI - [Drugs for intravenous induction of anesthesia: propofol]. AB - In a series of articles dealing with hypnotics for induction of anesthesia, this article describes the development and current value of propofol. Its significance far exceeds that of a pure induction hypnotic (sedation in diagnostic and therapeutic procedures and on the intensive care unit). Propofol is also used for sedation in diagnostic and therapeutic procedures and on the intensive care unit. In the field of induction of anesthesia, the alternatives are barely used. Some contraindications are still controversial whereas others are no longer sufficiently anchored in the users' awareness (widespread off-label use). Adverse effects, such as injection pain, infection risk and propofol-related infusion syndrome (PRIS) could be significantly reduced by pharmacovigilance. With appropriate caution nearly the whole spectrum of anesthesiology patients can be treated using propofol. The hemodynamic side effects and the rare but potentially fatal PRIS are limitations. Further developments address the water solubility and the solubilizing agents of propofol. PMID- 29335824 TI - Broad-spectrum resistance of Pseudomonas aeruginosa from shellfish: infrequent acquisition of novel resistance mechanisms. AB - Pseudomonas aeruginosa is one the most common multidrug-resistant pathogens worldwide. It has been previously detected in marine shellfish, but its antibiotic resistance in such environment has not been explored. By combining PCR detection of acquired genes, and resistance-nodulation-cell division (RND) efflux studying, we investigated the multifactorial resistance traits of 108 P. aeruginosa isolates recovered from wild-growing Mediterranean mussels (Mytilus galloprovincialis) in Croatia. Eleven different resistance profiles were found, with the main mechanism being the overexpression of intrinsic efflux pump(s), particularly MexAB-OprM. Several acquired resistance determinants were detected, including the beta-lactamase gene blaTEM-116, sulfamethoxazole resistance gene sul1, and the class 1 integron gene cassette carrying the streptomycin resistance gene aadA7. This study evidenced the multiple resistance in P. aeruginosa in shellfish from human-impacted marine environment, pointing to the underestimated role of the marine habitat for maintenance of multiresistant P. aeruginosa and, consequently, the potential risk for human and environmental health. PMID- 29335825 TI - Application of artificial intelligence using a convolutional neural network for detecting gastric cancer in endoscopic images. AB - BACKGROUND: Image recognition using artificial intelligence with deep learning through convolutional neural networks (CNNs) has dramatically improved and been increasingly applied to medical fields for diagnostic imaging. We developed a CNN that can automatically detect gastric cancer in endoscopic images. METHODS: A CNN based diagnostic system was constructed based on Single Shot MultiBox Detector architecture and trained using 13,584 endoscopic images of gastric cancer. To evaluate the diagnostic accuracy, an independent test set of 2296 stomach images collected from 69 consecutive patients with 77 gastric cancer lesions was applied to the constructed CNN. RESULTS: The CNN required 47 s to analyze 2296 test images. The CNN correctly diagnosed 71 of 77 gastric cancer lesions with an overall sensitivity of 92.2%, and 161 non-cancerous lesions were detected as gastric cancer, resulting in a positive predictive value of 30.6%. Seventy of the 71 lesions (98.6%) with a diameter of 6 mm or more as well as all invasive cancers were correctly detected. All missed lesions were superficially depressed and differentiated-type intramucosal cancers that were difficult to distinguish from gastritis even for experienced endoscopists. Nearly half of the false positive lesions were gastritis with changes in color tone or an irregular mucosal surface. CONCLUSION: The constructed CNN system for detecting gastric cancer could process numerous stored endoscopic images in a very short time with a clinically relevant diagnostic ability. It may be well applicable to daily clinical practice to reduce the burden of endoscopists. PMID- 29335827 TI - Satisfactory arterial repair 1 year after ultrathin strut biodegradable polymer sirolimus-eluting stent implantation: an angioscopic observation. AB - The ultrathin strut biodegradable polymer sirolimus-eluting stent (Orsiro, O-SES) exhibits satisfactory clinical outcomes. However, no report to date has documented the intravascular status of artery repair after O-SES implantation. We examined 5 O-SES placed in 4 patients (age 65 +/- 12 years, male 75%) presenting with stable angina pectoris due to de novo lesions in native coronary arteries. Coronary angioscopy was performed immediately after percutaneous coronary intervention and 1 year later. Angioscopic images were analyzed to determine the following: (1) dominant grade of neointimal coverage (NIC) over the stent; (2) maximum yellow plaque grade; and (3) existence of thrombus. Yellow plaque grade was evaluated both immediately after stent implantation and at the time of follow up observation. The other parameters were evaluated at the time of follow-up examination. NIC was graded as: grade 0, stent struts exposed; grade 1, struts bulging into the lumen, although covered; grade 2, struts embedded in the neointima, but translucent; grade 3, struts fully embedded and invisible. Yellow plaque severity was graded as: grade 0, white; grade 1, light yellow; grade 2, yellow; and grade 3, intensive yellow. Angioscopic findings at 1 year demonstrated the following: dominant NIC grade 1, grade 2, and grade 3 in 1, 2, and 2 stents, respectively; all stents were covered to some extent; focal thrombus adhesion was observed in only 1 stent. Yellow plaque grade did not change from immediately after stent implantation to follow-up. O-SES demonstrated satisfactory arterial repair 1 year after implantation. PMID- 29335826 TI - High-salt- and cholesterol diet-associated cognitive impairment attenuated by tannins-enriched fraction of Emblica officinalis via inhibiting NF-kB pathway. AB - Metabolic disorders are closely associated with dietary habits and seem to be related to neuroinflammation and neurodegenerative disease in humans. Emblica officinalis (EOT) fruits not only have good nutritional value but also have excellent therapeutic potential. We used a tannins-enriched fraction of EOT fruit with the expectation of controlling diet-induced neuroinflammation and cognitive impairment in rats. A high-salt and cholesterol diet (HSCD) was used to induce neuroinflammation and cognitive impairment in rats. The diet of the rats was then supplemented with EOT (100 and 200 mg/kg b.w.) for 7 weeks. In order to evaluate the neuroprotective effects of EOT; in silico study, neurobehavioral tests, biochemical analyses, and immunohistochemical studies were performed. In silico study of p50 (NF-kappaB1) receptors with emblicanin (the main constituent of EOT) suggests that EOT has binds to NF-kappaB. EOT treatment reversed the HSCD-induced behavioral and memory disturbances in a step-down-type passive avoidance test. EOT treatment also inhibited HSCD-induced NF-kappaB upstream signaling, including the release of Th1, such as TNF-alpha, and downstream signaling Th2, such as IL 10, by flow cytometer. In addition, EOT treatment attentuated the HSCD-induced increase in the level of cognitive impairment markers, such as amyloid beta. Furthermore, immunohistochemical results demonstrated that EOT modulated neuronal cell death by inhibiting the overexpression of NF-kB in brain. This study confirms that EOT may be a promising therapy in ameliorating the neurotoxicity of HSCD; however further studies are warranted to elucidate the exact mechanism of action of EOT. PMID- 29335828 TI - Low, but Not High, Doses of Copper Sulfate Impair Synaptic Plasticity in the Hippocampal CA1 Region In Vivo. AB - Previous studies have shown the inhibitory effect of the in vitro application of copper sulfate on hippocampal long-term potentiation. While in vivo administration of copper did not affect spatial learning and memory. To find possible answers to this controversial issue, we evaluate the effect of different doses of copper sulfate on in vivo long-term potentiation, synaptic transmission, and paired-pulse behavior of CA1 pyramidal cells. Thirty-two male Wistar rats were divided into four groups: control, 5, 10, and 15 mg of copper sulfate. Field excitatory postsynaptic potential from the stratum radiatum of CA1 neurons was recorded following Schaffer collateral stimulation in rats. Spike amplitude, long term potentiation and paired-pulse index were measured in all groups. The results of this study showed that 5 mg/kg copper sulfate increased synaptic transmission and inhibited long-term potentiation and decreased the hippocampal paired-pulse ratio, while 10 and 15 mg/kg copper sulfate did not affect CA1 synaptic transmission properties. Low, but not high, doses of copper sulfate affect synaptic plasticity. This finding may explain the difference between the effect of copper on synaptic plasticity and spatial learning and memory. PMID- 29335829 TI - Pancreaticoduodenectomy for periampullary tumours: a review article based on Surveillance, End Results and Epidemiology (SEER) database. AB - INTRODUCTION: This study set to examine relative survival of patients with periampullary cancers undergoing pancreaticoduodenectomy (PD). METHODS: Using the Surveillance, End Results and Epidemiology (SEER) database, this study identified 9877 patients with non-metastatic pancreatic adenocarcinoma who underwent PD between 2004 and 2013. RESULTS: Ampullary carcinomas have the best survival among periampullary malignancies. Lymph node ratio is a significant prognostic factor, even when stratified by tumour types. Patients receiving adjuvant radiotherapy following PD have superior survival than patients without radiotherapy (median 25 vs 20 months, p < 0.001), particularly ductal adenocarcinoma (HR: 0.74, CI95% 0.69-0.78; p < 0.001), cholangiocarcinoma (HR: 0.75, CI95% 0.59-0.97; p = 0.027), and ampullary carcinoma (HR: 0.79, CI95% 0.64-0.98; p = 0.029) with greatest survival benefit at 1-year postresection. CONCLUSION: Future studies aiming to further define genetic signatures of individual periampullary cancers would allow a personalised therapeutic approach in improving survival. PMID- 29335830 TI - From imaging to biology of glioblastoma: new clinical oncology perspectives to the problem of local recurrence. AB - GBM is one of the most common and aggressive brain tumors. Surgery and adjuvant chemoradiation have succeeded in providing a survival benefit. Although most patients will eventually experience local recurrence, the means to fight recurrence are limited and prognosis remains poor. In a disease where local control remains the major challenge, few trials have addressed the efficacy of local treatments, either surgery or radiation therapy. The present article reviews recent advances in the biology, imaging and biomarker science of GBM as well as the current treatment status of GBM, providing new perspectives to the problem of local recurrence. PMID- 29335832 TI - Lateral trochanteric pain following total hip arthroplasty: radiographic assessment of altered biomechanics as a potential aetiology. AB - INTRODUCTION: Lateral trochanteric pain (LTP) complicates up to 17% of cases of total hip arthroplasty (THA). Studies have refuted underlying trochanteric bursitis. Restoration of the femoral offset and reproduction of the natural femoral centre of rotation are important in successful arthroplasty. LTP is believed to be associated with their alteration. AIM: The aim of our study was to evaluate the effect of femoral offset and centre of rotation on the incidence of LTP post-THA. METHODS: A retrospective case control study was developed from 158 patients who underwent a THA over a two-year period to form two patient cohorts. Twenty-nine patients diagnosed with LTP were matched with 110 control subjects. The direct lateral approach was used in all cases. Anterior-posterior pelvic radiographs before and after surgery were compared to assess the femoral, cup and global offsets and limb length discrepancies between the two groups. Statistical analyses were performed using the Mann-Whitney U test and independent samples t test. RESULTS: Twenty-nine diagnosed with post-operative LTP. Sixty-two percent of symptomatic patients were female (p = 0.13). The median ages were 74.33 (symptomatic) and 70.71 (control) (p = 0.11). The differences (pre-post) of the femoral (p = 0.17), cup (p = 0.5) and global offsets (p = 0.99) and mean of limb length discrepancy (LLD) (p = 0.83) were not significant between the two groups. CONCLUSION: No relationship was found between LTP and femoral offset or femoral centre of rotation. Disruption of the soft tissues during a lateral approach with resultant abductor tear, tendon defects and tendinitis might play a role in LTP and explain the apparent efficacy of corticosteroid injections. PMID- 29335833 TI - Regulation of Bone Metabolism by microRNAs. AB - PURPOSE OF REVIEW: The small non-coding microRNAs (miRNAs) have emerged as important post-transcriptional regulators of various physiological and pathological processes. The purpose of this article is to review the important recent advances on the role of miRNAs in bone remodeling and metabolic bone disorders. RECENT FINDINGS: In a physiological context, miRNAs regulate bone formation and bone resorption, thereby contributing to the maintenance of bone homeostasis. Under pathological conditions, an aberrant miRNA signaling contributes to the onset and progression of skeletal disorders, such as osteoporosis. Furthermore, miRNAs can be secreted to circulation and have clinical potential as non-invasive biomarkers. In a therapeutic setting, miRNA delivery or antagonism has been reported to affect several diseases under pre clinical conditions thereby emerging as novel pharmacological tools. miRNAs are key regulators of bone remodeling in health and disease. The future perspectives in the field include the role of secreted miRNAs in cell-cell communication in the bone environment. Furthermore, the clinical potential of using miRNAs as diagnostic tools and therapeutic targets to treat metabolic bone diseases provides an attractive future direction. PMID- 29335831 TI - Quality of inter-hospital transportation in 431 transport survivor patients suffering from acute respiratory distress syndrome referred to specialist centers. AB - BACKGROUND: The acute respiratory distress syndrome (ARDS) is a life-threatening condition. In special situations, these critically ill patients must be transferred to specialized centers for escalating treatment. The aim of this study was to evaluate the quality of inter-hospital transport (IHT) of ARDS patients. METHODS: We evaluated medical and organizational aspects of structural and procedural quality relating to IHT of patients with ARDS in a prospective nationwide ARDS study. The qualification of emergency staff, the organizational aspects and the occurrence of critical events during transport were analyzed. RESULTS: Out of 1234 ARDS patients, 431 (34.9%) were transported, and 52 of these (12.1%) treated with extracorporeal membrane oxygenation. 63.1% of transferred patients were male, median age was 54 years, and 26.8% of patients were obese. All patients were mechanically ventilated during IHT. Pressure-controlled ventilation was the preferred mode (92.1%). Median duration to organize the IHT was 165 min. Median distance for IHT was 58 km, and median duration of IHT 60 min. Forty-two patient-related and 8 technology-related critical events (11.6%, 50 of 431 patients) were observed. When a critical event occurred, the PaO2/FiO2 ratio before transport was significant lower (68 vs. 80 mmHg, p = 0.017). 69.8% of physicians and 86.7% of paramedics confirmed all transfer qualifications according to requirements of the German faculty guidelines (DIVI). CONCLUSIONS: The transport of critically ill patients is associated with potential risks. In our study the rate of patient- and technology-related critical events was relatively low. A severe ARDS with a PaO2/FiO2 ratio < 70 mmHg seems to be a risk factor for the appearance of critical events during IHT. The majority of transport staff was well qualified. Time span for organization of IHT was relatively short. ECMO is an option to transport patients with a severe ARDS safely to specialized centers. Trial registration NCT02637011 (ClinicalTrials.gov, Registered 15 December 2015, retrospectively registered). PMID- 29335835 TI - Etiology of invasive candidosis agents in Russia: a multicenter epidemiological survey. AB - A multicenter prospective epidemiological survey on the etiologic agents of invasive candidosis was conducted in Russia in the period of 2012-2014. Samples were collected from 284 patients with invasive candidosis and Candida species isolated by culture. The species were identified by DNA sequencing and MALDI-TOF massspectrometry. A total of 322 isolates were recovered, in which 96% of Sandida species belonged to six major species, namely, C. albicans (43.2%), C. parapsilosis (20.2%), C. glabrata (11.5%), C. tropicalis (9.6%), C. krusei (6.2%), and C. guilliermondii (5.3%). Most Candida species were isolated from blood samples (83.23%). Notably, the prevalence rate of C. albicans reduced from 52.38% to 32.79% (2012 vs. 2014) (P = 0.01) whereas that of non-C. albicans increased from 47.62% (2012) to 67.21% (2014) (P < 0.01). Species distribution differed among geographical regions; specifically, the prevalence rate of C. albicans as an etiologic agent of invasive candidosis in Siberian Federal region was significantly higher than that in other Federal regions. Results indicated a shift from C. albicans to non-C. albicans. Therefore, a detailed investigation on the contributing factors and appropriate treatment of invasive candidosis is needed. PMID- 29335834 TI - Genetics of Osteopetrosis. AB - PURPOSE OF REVIEW: The term osteopetrosis refers to a group of rare skeletal diseases sharing the hallmark of a generalized increase in bone density owing to a defect in bone resorption. Osteopetrosis is clinically and genetically heterogeneous, and a precise molecular classification is relevant for prognosis and treatment. Here, we review recent data on the pathogenesis of this disorder. RECENT FINDINGS: Novel mutations in known genes as well as defects in new genes have been recently reported, further expanding the spectrum of molecular defects leading to osteopetrosis. Exploitation of next-generation sequencing tools is ever spreading, facilitating differential diagnosis. Some complex phenotypes in which osteopetrosis is accompanied by additional clinical features have received a molecular classification, also involving new genes. Moreover, novel types of mutations have been recognized, which for their nature or genomic location are at high risk being neglected. Yet, the causative mutation is unknown in some patients, indicating that the genetics of osteopetrosis still deserves intense research efforts. PMID- 29335836 TI - Adipogenesis and lipid production in adipocytes subjected to sustained tensile deformations and elevated glucose concentration: a living cell-scale model system of diabesity. AB - Adipocyte fate commitment is characterized by morphological changes of fibroblastic pre-adipocyte cells, and specifically by accumulation of lipid droplets (LDs) as part of the adipogenesis metabolism. Formation of LDs indicates the production of triglycerides from glucose through an insulin-regulated glucose internalization process. In obesity, adipocytes typically become insulin resistant, and glucose transport into the cells is impaired, resulting in type 2 diabetes. In the present study, we monitored the adipogenesis in 3T3-L1 cultured cells exposed to high (450 mg/dL hyperglycemia) and low (100 mg/dL physiological) glucose concentrations, in a novel cell culture model system of diabesity. In addition to glucose conditions, cells were concurrently exposed to different substrate tensile strains (12% and control) based on our prior work which revealed that adipogenesis is accelerated in cultures subjected to static, chronic substrate tensile deformations. Phase-contrast images were taken throughout the adipogenesis process (3 weeks) and were analyzed by an image processing algorithm which quantitatively monitors cell differentiation and lipid accumulation (number of LDs per cell and their radius as well as cell size and shape). The results indicated that high glucose concentrations and substrate tensile strains delivered to adipocytes accelerated lipid production by 1.7- and 1.4-fold, respectively. In addition, significant changes in average cell projected area and in other morphological attributes were observed during the differentiation process. The importance of this study is in characterizing the adipogenesis parameters as potential read-outs that can predict the occurrence of insulin resistance in the development of diabesity. PMID- 29335837 TI - Backbone chemical shift assignments of the glycine cleavage complex H protein of Escherichia coli. AB - Glycine cleavage complex H protein (GcvH) is one of the four components that form the glycine cleavage complex (GCS), essential for the synthesis of C1 (one-carbon units) for cell metabolism, by the oxidative cleavage of glycine. The activity of this complex is induced in the presence of exogenous glycine, and is repressed by purines. GCS, in cooperation with GCA (serine hydroxymethyltransferase) regulates the endogenous levels of glycine and C1 units in the cell. GcvH, the lipoamide containing component of the complex, plays an indispensable role in this reaction, as its prosthetic group shuttles between the active site of the three other components of the GCS complex sequentially. In environments rich in exogenous lipoic acid, GcvH is converted to lipoyl-GcvH by Lipoate protein ligase (LplA), by the salvage pathway. When exogenous lipoic acid is deficient, it is post-translationally modified to lipoyl-GcvH by the consecutive action of two enzymes, (a) Lipoate protein ligase B (LipB) and (b) Lipoyl synthase (LipA). Although, the crystal structure has been determined for Escherichia coli GcvH, no information exists for its interaction with LipB or LipA. Therefore, we plan to study its interactions with the aforementioned enzymes. As a first step, we have carried out the complete backbone chemical shift assignments of the E. coli glycine cleavage complex H protein in its apo-form, as well as its C8- intermediate. PMID- 29335839 TI - Successful replacement of the longest worldwide in situ Nanostim leadless cardiac pacemaker for a Micra Transcatheter Pacing System. PMID- 29335838 TI - Effect of immunonutrition on colorectal cancer patients undergoing surgery: a meta-analysis. AB - PURPOSE: Immunonutrition has been used to prevent the complications after colorectal elective surgery. This systematic review aimed to analyze and assess the effect of immunonutrition on colorectal cancer patients who received elective surgery. METHODS: Three electronic databases (Medline, Embase, Cochrane) were used to search the latent studies which investigated the effects of enteral immunonutrition (EIN) compared with standard enteral nutrition (EN) or parenteral immunonutrition (PIN) compared with standard parenteral nutrition (PN) on colorectal cancer patients who are undergoing surgery until 21st of April, 2017. Meta-analysis was conducted to calculate odd risk (OR), mean difference (MD), or standard mean difference (SMD) with 95% confidence interval (CI), and heterogeneity was tested by Q test. RESULTS: Nine publications were included. The meta-analysis results presented that EIN improved the length of hospital stay (pooled MD, 2.53; 95% CI, 1.29-3.41), infectious complications (pooled OR, 0.33; 95% CI, 0.21-0.53) which contains the Surgical Site Infections (pooled OR, 0.25; 95% CI, 0.22-0.58) and Superficial/Deep incisional infections (pooled OR, 0.27; 95% CI, 0.12-0.64); meanwhile, PIN improved the length of hospital stay (pooled MD, 2.66; 95% CI, 0.62-4.76), IL-6 (pooled MD, - 6.09; 95% CI, - 10.11 to - 2.07), CD3 (pooled MD, 7.50; 95% CI, 3.57-11.43), CD4 (pooled MD, 5.47; 95% CI, 2.54-8.40), and CD4/CD8 (pooled MD, 0.50; 95% CI, 0.22-0.78); the level of CD8 was lower (pooled MD, - 4.32; 95% CI, - 7.09 to - 1.55) in PIN. CONCLUSION: Immunonutrition could be an effective approach to enhance the immune function of colorectal cancer patients undergoing elective surgery and to improve the clinical and laboratory outcomes. PMID- 29335840 TI - Efficacy of ultrasound-guided axillary/subclavian venous approaches for pacemaker and defibrillator lead implantation: a randomized study. AB - PURPOSE: Subclavian access is a reliable technique for lead insertion in pacemaker and defibrillator (ICD) implantation, but it is often accompanied by complications. The aim of this study was to compare the efficacy of the ultrasound-guided axillary approach to the subclavian method. METHODS: This randomized comparative study was performed on 174 patients: as a first attempt, 116 patients underwent the ultrasound-guided axillary access and 58 patients underwent the subclavian approach. A total of 364 leads were placed. Operators were trained in ultrasound-guided vein access technique. RESULTS: Axillary access was successful in 69% of patients (32/46), in the training phase and, as a first attempt, in 91.4% of patients (106/116), in the randomized phase. When axillary approach failed, we performed the following: subclavian access in 5.2% of patients (6/116), cephalic approach in 2.6% of patients (3/116), surgical method in 0.9% of patients (1/116). The subclavian technique was effective, as a first attempt, in 55 patients (94.8%). When the subclavian access failed, the ultrasound axillary approach successfully performed in all three cases. During a mean follow-up of 18 +/- 6 months, the number of lead complications was similar in the subclavian group compared to the axillary group (p = 0.664). CONCLUSIONS: As first attempt, ultrasound-guided axillary method showed similarly high-success rate than subclavian approach and well performed when the first attempt in subclavian group failed. Axillary access can be considered a safe and effective alternative technique to the conventional subclavian method for device implantation. PMID- 29335842 TI - Direct repression of IGF2 is implicated in the anti-angiogenic function of microRNA-210 in human retinal endothelial cells. AB - Pathological angiogenesis leads to the development of retinal vasculopathies and causes severe vision impairment. Increased understanding of the mechanisms underlying the angiogenic behavior of retinal endothelial cells helps provide new insights for developing treatment of retinal vasculopathies. Pro-angiogenic function of miR-210 has previously been identified. However, the functional implication of miR-210 in retinal endothelial cells remains unknown. Human retinal microvascular endothelial cells (HRECs) were employed to investigate the impact of miR-210 on the angiogenic capacity of retinal endothelial cells. It was observed that without affecting the viability of HRECs, miR-210 significantly suppressed the migration and capillary-like tube formation in HRECs. Moreover, pro-angiogenic insulin growth factor 2 (IGF2) was newly identified as a direct target of miR-210 in HRECs. MiR-210 decreased the expression of IGF2 at both mRNA and protein levels in HRECs. IGF2-simulated activation of p38 MAPK was attenuated by miR-210 in HRECs. Recombinant IGF2 protein rescued miR-210-induced impairment of tube formation in HRECs. Therefore, in contrast to the previously reported pro angiogenic function of miR-210, the current work reveals novel anti-angiogenic activity of miR-210 in HRECs. Furthermore, IGF2 is identified for the first time as a direct target of miR-210 in HRECs, adding new mechanistic insights into the expression regulation of pro-angiogenic IGF2 in human retinal endothelial cells. The current work helps increase the understanding of regulatory mechanisms underlying retinal endothelial cell physiology, justifying further evaluation for the therapeutic implications of miR-210/IGF2 interaction in the treatment of related retinal vasculopathies. PMID- 29335841 TI - Reconstructing normality following the diagnosis of a childhood chronic disease: does "rare" make a difference? AB - : Living with a childhood chronic disease can be challenging, especially if the diagnosis involves a rare condition. This study sought to elucidate how the diagnosis of a rare disease, as compared to a common, chronic condition, may influence maternal experiences of childhood illness. We conducted face-to-face, semi-structured interviews with 26 mothers of children treated in a pediatric hospital in the province of Lecco, Italy. Half of the participants had a child diagnosed with Bartter syndrome (BS), and the rest had a child suffering from celiac disease (CD). Interviews were recorded, transcribed, and analyzed using an inductive thematic approach. We identified three main themes from the analysis of our data: (1) disrupted normality and the need to know, (2) reconstructing normality, and (3) acting "normal." Although most participants experienced the disclosure of diagnosis as a relief, processes that facilitated normality reconstruction in celiac families, notably access to appropriate information, social support, and personal contact with comparison others, were found to be important stressors for mothers living with BS. CONCLUSION: This comparative qualitative study provides evidence on how well-known problems associated with the rarity of childhood diseases impact on families' efforts to cope with the illness and regain a sense of normality. What is Known: * Families living with a rare disease have been found to experience a range of common problems, directly linked to the rarity of these pathologies. What is New: * Maximization of both emotional and instrumental social support, through provision of appropriate information or establishment of disease-specific support groups, could greatly contribute to rare disease families' efforts to cope with childhood illness and regain a sense of normality. PMID- 29335843 TI - Study on the Clinical Features and Prognosis of Penicilliosis marneffei Without Human Immunodeficiency Virus Infection. AB - OBJECTIVE: To improve the diagnosis and treatment of Penicilliosis marneffei without human immunodeficiency virus infection. METHODS: Analyze and review the clinical features, diagnosis and treatment of six cases of P. marneffei without human immunodeficiency virus infection at The First Affiliated Hospital of Fujian Medical University. RESULTS: Two cases were diagnosed in the ENT Department, three cases in the respiratory department and one case in the dermatological department. Penicillium marneffei infection was confirmed by sputum culture, blood culture and tissue biopsy. After definite diagnosis, one refused further treatment, and others showed significant improvement. CONCLUSION: Penicilliosis marneffei is insidious onset and easy to be escaped and misdiagnosed. To achieve early diagnosis and appropriate treatment, doubtful cases should be alerted for the diagnoses as P. marneffei. PMID- 29335844 TI - The Adiponectin Homolog Osmotin Enhances Neurite Outgrowth and Synaptic Complexity via AdipoR1/NgR1 Signaling in Alzheimer's Disease. AB - Alzheimer's disease is a major neurodegenerative disease characterized by memory loss and cognitive deficits. Recently, we reported that osmotin, which is a homolog of adiponectin, improved long-term potentiation and cognitive functions in Alzheimer's disease mice. Several lines of evidence have suggested that Nogo-A and the Nogo-66 receptor 1 (NgR1), which form a complex that inhibits long-term potentiation and cognitive function, might be associated with the adiponectin receptor 1 (AdipoR1), which is a receptor for osmotin. Here, we explore whether osmotin's effects on long-term potentiation and memory function are associated with NgR1 signaling via AdipoR1 in Alzheimer's disease. Osmotin reduced the expression of NgR1 without affecting Nogo-A expression. Furthermore, osmotin inhibited NgR1 signaling by prohibiting the formation of the Nogo-A and NgR1 ligand-receptor complex, resulting in enhanced neurite outgrowth; these effects disappeared in the presence of AdipoR1 interference. In addition, osmotin increased the expression of the pre- and postsynaptic markers synaptophysin and PSD-95, as well as the activation of the memory-associated markers AMPA receptor and CREB; these effects occurred in an AdipoR1- and NgR1-dependent manner. Osmotin was also found to enhance dendritic complexity and spine density in the hippocampal region of Alzheimer's disease mouse brains. These results suggest that osmotin can enhance neurite outgrowth and synaptic complexity through AdipoR1 and NgR1 signaling, implying that osmotin might be an effective therapeutic agent for Alzheimer's disease and that AdipoR1 might be a crucial therapeutic target for neurodegenerative diseases such as Alzheimer's. PMID- 29335847 TI - Diabetes, Obesity, and the Metabolic Syndrome as Prognostic Factors in Stages I to III Colorectal Cancer Patients. AB - BACKGROUND: Attempts to introduce prognostic factors for survival outcomes in localized colorectal cancer patients receiving surgical treatment with or without adjuvant therapies, beyond the classic staging parameters, have been met with limited success. Obesity and diabetes mellitus are among the conditions that predispose to colorectal cancer but their value as prognostic markers once the disease is diagnosed is controversial. PATIENTS AND METHODS: This study examines the prognostic value of the components of metabolic syndrome in a retrospective series of colorectal cancer patients with stages I to III disease followed in a single center. RESULTS: Among the four components of the metabolic syndrome, only diabetes was independently associated with progression-free survival (PFS) while obesity, hypertension, and dyslipidemia were not. No associations of the metabolic syndrome (MS) or its components with overall survival (OS) were observed in multivariate analysis. CONCLUSION: These data pinpoint to diabetes mellitus (DM) as a possible prognostic factor for PFS in localized colorectal cancer and further cast doubt for the value of obesity as measured by body mass index (BMI) on local stage colorectal cancer prognosis. PMID- 29335849 TI - Differential expression of adipokines in knee osteoarthritis patients with and without metabolic syndrome. AB - PURPOSE: The purpose of this study was to compare adipokines levels in plasma and synovial fluid (SF) between knee osteoarthritis (OA) patients with and without metabolic syndrome (MetS), and to evaluate the associations between adipokines levels and clinical severity of knee osteoarthritis. METHODS: Eighty female patients with knee osteoarthritis were enrolled in the study. These patients were divided into two groups: patients with and without MetS. Clinical severity was evaluated according to visual analogue scale (VAS) pain scores and Western Ontario McMaster University Osteoarthritis Index (WOMAC) scores. Adipokines and soluble leptin receptor levels in plasma and SF were determined by a sandwich enzyme-linked immunosorbent assay. RESULTS: Forty-three (54%) osteoarthritis patients with MetS and 37 (46%) osteoarthritis patients without MetS were enrolled as MetS-OA group and nMetS-OA group, respectively. VAS pain and WOMAC scores were higher in MetS-OA group compared with those in nMets-OA group (p < 0.01). The leptin and free leptin levels in plasma and SF were significantly higher in MetS-OA group than those in nMetS-OA group, while the adiponectin levels were lower (All p < 0.01). Significant differences existed even after adjustment for body mass index (BMI) (p < 0.05). There were no significant associations between adipokines levels and the clinical severity of OA in MetS-OA group and nMetS-OA group respectively (p > 0.05). CONCLUSIONS: Leptin was higher and adiponectin was lower in knee osteoarthritis patients with MetS compared to those without MetS, independent of BMI. The higher SF and plasma levels of leptin in MetS-OA patients may need further studies to delineate their pathophysiological relationships. PMID- 29335845 TI - Carnosic Acid as a Promising Agent in Protecting Mitochondria of Brain Cells. AB - Carnosic acid (CA; C20H28O4), a phenolic diterpene characterized as an ortho dihydroquinone-type molecule, is a pro-electrophile agent that becomes an electrophile after reacting with free radicals. The electrophile generated from CA interacts with and activates the nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factor, which is a major modulator of redox biology in mammalian cells. CA induces antioxidant and anti-inflammatory effects in several cell types, as observed in both in vitro and in vivo experimental models. In this context, CA has been viewed as a neuroprotective agent by activating signaling pathways associated with cell survival during stressful conditions. Indeed, CA exhibits the ability to promote mitochondrial protection in neural cells. Mitochondria are the main source of both ATP and reactive species in animal cells. Mitochondrial dysfunction plays a central role in the start and development of neurodegenerative disorders, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease, among others. Therefore, the study of strategies aiming to reduce mitochondrial impairment in the case of neurodegeneration is of pharmacological interest. In the present review, it is described and discussed the effects of CA on brain mitochondria in experimental models of neural lesion. Based on the data discussed here, CA is a potential candidate to be listed as a neuroprotective agent by acting on the mitochondria of neural cells. PMID- 29335850 TI - Functional outcome after endoscopic assisted release of the ulnar nerve for cubital tunnel syndrome: mid-to-long term results. AB - AIM OF THE STUDY: The aim of the study was to investigate functional and patient rated outcome parameters after endoscopic assisted release of the ulnar nerve for cubital tunnel syndrome. METHODS: One hundred of 204 consecutive patients between 2006 and 2011 met the inclusion/exclusion criteria. Fifty-one of these patients were recruited and evaluated clinically and by questionnaire testing retrospectively after a mean follow-up of 82 months (range: 60-116). RESULTS: Neurological parameters (two-point-discrimination, application of Semmes Weinstein monofilaments, Tinel's test), grip, and three-point pinch strength were not significantly different from the contralateral extremity at the time of examination, whereas key pinch strength was significantly weaker. Mean Disabilities of the Arm, Shoulder, and Hand score was 20.82. Patients' overall opinion was good/excellent for 78% of the study population. DISCUSSION: The examined surgical procedure proved to be as efficacious as open in-situ decompression regarding functional outcome with fewer post-operative complications. Regarding the results it might be postulated that grip strength and three-point pinch strength determination is not necessarily relevant for ulnar nerve evaluation. CONCLUSION: Endoscopic assisted release of the ulnar nerve is a reliable and safe treatment option for cubital tunnel syndrome with satisfactory mid-to-long term functional and patient-rated outcomes. PMID- 29335846 TI - Cotinine: A Therapy for Memory Extinction in Post-traumatic Stress Disorder. AB - Post-traumatic stress disorder (PTSD) is a mental disorder that may develop after exposure to exceptionally threatening or unescapable horrifying events. Actual therapies fail to alleviate the emotional suffering and cognitive impairment associated with this disorder, mostly because they are ineffective in treating the failure to extinguish trauma memories in a great percentage of those affected. In this review, current behavioral, cellular, and molecular evidence supporting the use of cotinine for treating PTSD are reviewed. The role of the positive modulation by cotinine of the nicotinic acetylcholine receptors (nAChRs) and their downstream effectors, the protection of astroglia, and the inhibition of microglia in the PTSD brain are also discussed. PMID- 29335851 TI - The relation between personality, informal caregiving, life satisfaction and health-related quality of life: evidence of a longitudinal study. AB - PURPOSE: Personality characteristics of the caregiver might play a role in the relation between informal caregiving and health-related quality of life as well as life satisfaction. However, a limited body of research has examined this relation. This study aimed to examine the role personality characteristics of the caregiver might play in the relation between informal caregiving and well-being outcomes using a longitudinal approach. METHODS: Data were derived from the large Panel 'Labour Market and Social Security.' This is an annual household survey, which is conducted by order of the Institute for Employment Research covering persons and households registered as residents of Germany. The SF-12 was used to capture health-related quality of life (covering physical and mental health). A short version of the Big Five Inventory (BFI-K) was used to quantify personality factors. Life satisfaction was measured by a single-item measure. Concentrating on these factors, we used data from the third (2008/2009), sixth (2012), and ninth wave (2015). 34,548 observations were used in fixed effects regressions. RESULTS: Adjusting for various potential confounders, linear fixed effects regressions showed that the onset of informal caregiving reduced life satisfaction (beta = - .14, p < .01), but not physical and mental health. The relation between informal caregiving and life satisfaction was significantly moderated by agreeableness (p < .01). CONCLUSIONS: Findings of the present study emphasized that agreeableness moderates the relationship between informal caregiving and life satisfaction. Measuring personality characteristics of the informal caregiver is important for tailoring interventional strategies in order to increase the benefit of these programs. PMID- 29335852 TI - Authors' reply to "Rectal sparing approach after preoperative radio- and/or chemotherapy (RESARCH) in patients with rectal cancer: potential pitfalls of a multicentre observational study". PMID- 29335853 TI - Effect of nonwoven jute agrotextile mulch on soil health and productivity of broccoli (Brassica oleracea L.) in lateritic soil. AB - A field experiment was conducted in winter season of 2015-2016 in the dry lateritic soil of Eastern India to study the effect of different thicknesses of nonwoven jute agrotextile mulches (NJATM) along with other mulches on soil health, growth and productivity of broccoli (Brassica oleracea L.). The experiment was conducted in randomized block design with six treatments viz., T1 (control, i.e. no mulching), T2 (300 gsm NJATM), T3 (350 gsm NJATM), T4 (400 gsm NJATM), T5 (rice straw) and T6 (black polythene mulch), each of which was replicated four times. The highest average curd weight (355.25 g) and yield (8.53 t ha-1) of broccoli were recorded in T3 treatment. The lowest density of broad leaved weed, sedges and grasses were recorded in T6 treatment which was statistically at par with T4. All the treatments composing of NJATM increased the population of all the soil microbes except bacteria in the root rhizosphere of broccoli from their initial population. On average, the highest population of fungi (54.0 * 103 cfu per g) and actinomycetes (134.75 * 103 cfu per g) was recorded with T3 and T4 treatments respectively in the post-harvest soil. The soil moisture was conserved in all treatments compared to control showing highest moisture content in T4 treatment. Organic carbon and available N, P and K contents of soil were increased in all mulch treated plots compared to control, and their initial value and their highest value were recorded in T3. The NJATM of 350 gsm thickness was very effective compared to other mulches in increasing the growth and productivity of broccoli by suppressing weeds, increasing moisture, microbial population and nutrient content of the lateritic soil. PMID- 29335854 TI - Nonreconstruction Options for Treating Medial Ulnar Collateral Ligament Injuries of the Elbow in Overhead Athletes. AB - PURPOSE OF REVIEW: This review aims to describe the nonreconstructive options for treating ulnar collateral ligament (UCL) injuries ranging from nonoperative measures, including physical therapy and biologic injections, to ligament repair with and without augmentation. RECENT FINDINGS: Nonoperative options for UCL injuries include guided physical therapy and biologic augmentation with platelet rich plasma (PRP). In some patients, repair of the UCL has shown promising return to sport rates by using modern suture and suture anchor techniques. Proximal avulsion injuries have shown the best results after repair. Currently, there is growing interest in augmentation of UCL repair with an internal brace. The treatment of UCL injuries involves complex decision making. UCL reconstruction remains the gold standard for attritional injuries and complete tears, which occur commonly in professional athletes. However, nonreconstructive options have shown promising results for simple avulsion or partial thickness UCL injuries. Future research comparing reconstructive versus nonreconstructive options is necessary. PMID- 29335855 TI - T cell responses to tumor: how dominant assumptions on immune activity led to a neglect of pathological functions, and how evolutionary considerations can help identify testable hypotheses for improving immunotherapy. AB - Cancer immunotherapy is based on the premise that activated, pro-inflammatory T cell responses to tumor will mostly combat tumor growth. Nowadays accepted as largely valid, this hypothesis has been formed as a result of extensive theoretical and experimental argumentation on the inherent function of the immune system and the nature of the immunological self, dating back to the foundations of immunology. These arguments have also been affected by how current working hypotheses were set by researchers, an issue that has been the focus of study by medical anthropologists. As a result of these processes, cancer immunotherapy has developed into a truly promising anti-cancer strategy, with very substantial benefits in clinical outcomes. However, as immunotherapy still has large margins for improvement, a more thorough examination of both the historical background and evolutionary context of current assumptions for how the immune system responds to cancer can help reveal novel, testable questions. We describe how attempting to answer some of these questions experimentally, such as identifying the contributors of tumor-associated fibrosis, has led to potentially useful insights on how to improve immunotherapy. PMID- 29335856 TI - Abscopal effects of radiotherapy and combined mRNA-based immunotherapy in a syngeneic, OVA-expressing thymoma mouse model. AB - BACKGROUND: Tumor metastasis and immune evasion present major challenges of cancer treatment. Radiotherapy can overcome immunosuppressive tumor microenvironments. Anecdotal reports suggest abscopal anti-tumor immune responses. This study assesses abscopal effects of radiotherapy in combination with mRNA-based cancer vaccination (RNActive(r)). METHODS: C57BL/6 mice were injected with ovalbumin-expressing thymoma cells into the right hind leg (primary tumor) and left flank (secondary tumor) with a delay of 4 days. Primary tumors were irradiated with 3 * 2 Gy, while secondary tumors were shielded. RNA and combined treatment groups received mRNA-based RNActive(r) vaccination. RESULTS: Radiotherapy and combined radioimmunotherapy significantly delayed primary tumor growth with a tumor control in 15 and 53% of mice, respectively. In small secondary tumors, radioimmunotherapy significantly slowed growth rate compared to vaccination (p = 0.002) and control groups (p = 0.01). Cytokine microarray analysis of secondary tumors showed changes in the cytokine microenvironment, even in the non-irradiated contralateral tumors after combination treatment. CONCLUSION: Combined irradiation and immunotherapy is able to induce abscopal responses, even with low, normofractionated radiation doses. Thus, the combination of mRNA-based vaccination with irradiation might be an effective regimen to induce systemic anti-tumor immunity. PMID- 29335857 TI - Effect of soothing Gan (Liver) and invigorating Pi (Spleen) recipes on TLR4-p38 MAPK pathway in kupffer cells of non-alcoholic steatohepatitis rats. AB - OBJECTIVE: To investigate the mechanism of inflammatory-mediated toll-like receptor 4 (TLR4)-p38 mitogen-activated protein kinase (p38 MAPK) pathway in Kupffer cells (KCs) of non-alcoholic steatohepatitis (NASH) rats and the intervention effect of soothing Gan (Liver) and invigorating Pi (Spleen) recipes on this pathway. METHODS: After 1 week of acclimatization, 120 Sprague-Dawley male rats were randomly divided into 8 groups using a random number table (n=15 per group): normal group, model group, low-dose Chaihu Shugan Powder (, CHSG) group (3.2 g/kg), high-dose CHSG group (9.6 g/kg), low-dose Shenling Baizhu Powder (, SLBZ) group (10 g/kg), high-dose SLBZ (30 g/kg) group, and low-and highdose integrated recipe (L-IR, H-IR) groups. All rats in the model and treatment groups were fed with a high-fat diet (HFD). The treatments were administrated by gastrogavage once daily and lasted for 26 weeks. The liver tissues were detected with hematoxylin-eosin (HE) and oil red O staining. Levels of liver lipids, serum lipids and transaminases were measured. KCs were isolated from the livers of rats to evaluate the mRNA expressions of TLR4 and p38 MAPK by real-time flfl uorescence quantitative polymerase chain reaction, and proteins expressions of TLR4, p-p38 MAPK and p38 MAPK by Western blot. Levels of inflammatory cytokines including tumor necrosis factor alpha (TNF-alpha), interleukin (IL)-1 and IL-6 in KCs were measured by enzyme-linked immunosorbent assay. RESULTS: After 26 weeks of HFD feeding, HE and oil red O staining showed that the NASH model rats successfully reproduced typical pathogenesis and histopathological features. Compared with the normal group, the model group exhibited signifificant increases in body weight, liver weight, liver index, serum levels of total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol, and aspartate aminotransferase as well as TC and TG levels in liver tissues, and significant decrease in serum level of high-density lipoprotein cholesterol (P<0.05 or P<0.01), while those indices were significantly ameliorated in the H-IR group (P<0.05 or P<0.01). Higher levels of TNF-alpha, IL-1 and IL-6 in KCs were observed in the model group compared with the normal group (P<0.01). Signifificant decreases in TNF-alpha, IL-1 and IL-6 were observed in the H-SLBZ, H-IR and L-IR groups compared with the model group (P<0.05 or P<0.01). The mRNA expressions of TLR4 and p38 MAPK and protein expressions of TLR4, p38 MAPK and p-p38 MAPK in KCs in the model group were signifificantly higher than the normal group (P<0.01), while those expression levels in the L-IR and H-IR groups were signifificantly lower than the model group (P<0.05 or P<0.01). CONCLUSIONS: Inflfl ammation in KCs might play an important role in the pathogenesis of NASH in rats. The data demonstrated the importance of TLR4-p38MAPK signaling pathway in KCs for the anti-inflfl ammatory effect of soothing Gan and invigorating Pi recipes. PMID- 29335858 TI - Effects of Aidi injection () with Western medical therapies on quality of life for patients with primary liver cancer: a systematic review and meta-analysis. AB - OBJECTIVE: To evaluate the effects of Aidi Injection (, AD) in combination with Western medical therapies (WMT) in patients with primary liver cancer (PLC). METHODS: Randomized controlled trials (RCTs) comparing AD plus WMT with WMT alone were retrieved from inception to March 2013 by retrieving the literature database thoroughly and systematically. The extracted data from included studies were analyzed and synthesized by Review Manager 5.2 software. The Cochrane risk of bias tool was used to assess the quality of included studies, and Begg's and Egger's tests were used to evaluate the potential presence of publication bias. The studies were divided into 7 separate subgroups in terms of quality of life (QOL), recent chemotherapy and the incidence of leukocyte reduction. The subgroup analysis was applied to assess the heterogeneity between included researches, and the sensitivity analysis was used to weigh the stability of studies. RESULTS: Twenty-four RCTs were included in this study. Compared with WMT used alone, AD as additional intervention was more effective on improving QOL (P<0.01), increasing short-term effificacy (P<0.01), prolonging life (P<0.05 or P<0.01), relieving clinical symptoms (P<0.01), and reducing adverse events (e.g. reduce white blood cell counts, P=0.002; reduce in platelet counts, P<0.01). Subgroup analysis showed that the hepatic artery interventions with AD was superior in improving QOL (P<0.01) and enhancing short-term response rates (P=0.007) and reducing white blood cell counts (P=0.0004) than hepatic artery interventions alone (P<0.01). The chemoembolization plus AD or the chemotherapy plus AD were both better than chemoembolization or the chemotherapy alone in improving the QOL and short-term response rate (P<0.05 or P<0.01). CONCLUSIONS: AD in combination with WMT improves QOL in patients with PLC. Considering the inherent limitations of the included studies, further well-designed, rigorously performed, high-quality, and double-blinded RCTs with large sample sizes are needed. PMID- 29335859 TI - Arginine vasopressin-aquaporin-2 pathway-mediated dehydration effects of electroacupuncture in guinea pig model of AVP-induced endolymphatic hydrops. AB - OBJECTIVE: To investigate the effects of electroacupuncture (EA) on endolymphatic hydrops (EH) and the regulation of arginine vasopressin (AVP)-aquaporin-2 (AQP2) pathway in guinea pigs. METHODS: EH was induced in male guinea pigs by an intraperitoneal injection of AVP. For the treatment, EA was delivered to Baihui (GV 20) and Tinggong (SI 19) acupoints, once per day for 10 consecutive days. In histomorphological studies, cochlear hydrops degree was evaluated by hematoxylin eosin (HE) staining, and then the ratio of scala media (SM) area to SM + scala vestibuli (SV) area (R value) was calculated. In mechanical studies, a comparison of plasma AVP (p-AVP) concentrations, cyclic adenosine monophosphate (cAMP) levels, vasopressin type 2 receptor (V2R) and AQP2 mRNA expressions in the cochlea were compared among groups. RESULTS: EA significantly reduced cochlear hydrops in guinea pigs (P=0.001). EA significantly attenuated the AVPinduced up regulation of p-AVP concentrations (P=0.006), cochlear cAMP levels (P=0.003) and AQP2 mRNA expression (P=0.016), and up-regulated the expression of V2R mRNA (P=0.004) in the cochlea. CONCLUSIONS: The dehydrating effect of EA might be associated with its inhibition of AVP-AQP2 pathway activation. PMID- 29335860 TI - Effectiveness and safety of Chinese medicine for Idiopathic pulmonary fibrosis: A systematic review and meta-analysis. AB - OBJECTIVE: To evaluate the effectiveness and safety of Chinese medicine (CM) for Idiopathic pulmonary fifibrosis (IPF) patients. METHODS: To screened relevant articles, PubMed, Cochrane Library, Excerpta Medica Datase (EMBASE), China National Knowledge Infrastructure (CNKI), Chinese VIP Information (VIP), Wanfang Database and Chinese Biomedical Database (CBM) were searched in English or Chinese until December 2015 for randomized controlled trials, which compared CM treatment (CM group) with Western medicine or placebo (control group) on IPF. The outcome measures included acute exacerbation, pulmonary function, the St George's respiratory questionnaire (SGRQ) scores, 6-minute walk test (6MWT) distance, adverse events and mortality. RESULTS: This meta-analysis included 25 randomized controlled trials involving 1,471 patients. Compared with the control group, CM group was superiori in reducing the risk of exacerbation [relative risk (RR)=0.40, 95% CI 0.22 to 0.72, P<0.05], improving in forced expiratory volume in one second (FEV1) [standard mean difference (SMD)=0.62, 95% CI 0.40 to 0.84, P<0.01] and diffusion capacity for carbon monoxide (DLCO, SMD=0.40, 95% CI 0.22 to 0.58, P<0.01), but there was no significant difference in vital capacity (VC, SMD=0.10, 95% CI-0.12 to 0.31, P>0.05). This meta-analysis also revealed that CM therapy signifificantly decreased the SGRQ score (SMD=-0.60, 95% CI-1.14 to-0.05, P<0.05) and improved 6MWT distance (SMD=0.59, 95% CI 0.34 to 0.84, P<0.01), compared with the control group. Meanwhile, CM therapy was associated with a low incidence of adverse effects (RR=0.19, 95% CI 0.08 to 0.43, P<0.01). However, there was no signifificant difference in mortality (RR=0.24, 95% CI 0.05 to 1.10, P>0.05) between CM and control groups. CONCLUSIONS: The pooled outcomes suggest that CM treatment appears benefifit in reducing the risk of exacerbation, improving lung function and decreasing the incidence of adverse effects and enhancing the quality of life. However, the outcomes were limited because of the low quality of the included studies. More rigorous clinic trials need to be carried out to provide suffificient and accurate evidence in the future. PMID- 29335862 TI - Rules of meridians and acupoints selection in treatment of Parkinson's disease based on data mining techniques. AB - OBJECTIVE: To help selecting appropriate meridians and acupoints in clinical practice and experimental study for Parkinson's disease (PD), the rules of meridians and acupoints selection of acupuncture and moxibustion were analyzed in domestic and foreign clinical treatment for PD based on data mining techniques. METHODS: Literature about PD treated by acupuncture and moxibustion in China and abroad was searched and selected from China National Knowledge Infrastructure and MEDLINE. Then the data from all eligible articles were extracted to establish the database of acupuncture-moxibustion for PD. The association rules of data mining techniques were used to analyze the rules of meridians and acupoints selection. RESULTS: Totally, 168 eligible articles were included and 184 acupoints were applied. The total frequency of acupoints application was 1,090 times. Those acupoints were mainly distributed in head and neck and extremities. Among all, Taichong (LR 3), Baihui (DU 20), Fengchi (GB 20), Hegu (LI 4) and Chorea-tremor Controlled Zone were the top five acupoints that had been used. Superior-inferior acupoints matching was utilized the most. As to involved meridians, Du Meridian, Dan (Gallbladder) Meridian, Dachang (Large Intestine) Meridian, and Gan (Liver) Meridian were the most popular meridians. CONCLUSIONS: The application of meridians and acupoints for PD treatment lay emphasis on the acupoints on the head, attach importance to extinguishing Gan wind, tonifying qi and blood, and nourishing sinews, and make good use of superior-inferior acupoints matching. PMID- 29335863 TI - Integrative medicine on optimizing clopidogrel and aspirin therapy. AB - This article reviews the available published data on optimizing clopidogrel and aspirin therapy using translational and integrative medicine. Translational and evidence-based medical studies show that the CYP2C19 gene mutation (CYP2C19*2 and CYP2C19*3) could affect > 50% of the Chinese population, and that this mutation is closely associated with clopidogrel resistance and an increased risk of major adverse cardiovascular events, particularly stent thrombosis in patients following percutaneous coronary intervention (PCI). Adjusted-dose warfarin and aspirin reduce stroke in patients with atrial fibrillation (AF), and warfarin is substantially more efficacious than aspirin. However, a poor compliance is a big problem in warfarin use especially in China. The genetic variants of vitamin K expoxide reductase might account for the universally lower warfarin dosage used in Chinese population. The available evidence indicates that the integrating mainstream treatments (e.g., clopidogrel, CYP2C19 genotyping) and non-mainstream medicines [e.g., Chinese medicines, Naoxintong Capsule (, NXT)] to treat CYP2C19 gene mutation patients following PCI can be effective. Aspirin combined NXT and the adjusted-dose warfarin was equally effective in elderly patients with non valvular AF in prevention of ischemic stroke. PMID- 29335861 TI - Alterations of Gefitinib Pharmacokinetics by Co-administration of Herbal Medications in Rats. AB - OBJECTIVE: To evaluate the potential pharmacokinetic interactions of the anticancer agent gefitinib (Iressa(r)) and the oriental medications Guipi Decoction (, GPD, Guibi-tang in Korean) and Bawu Decoction (, BWD, Palmul-tang in Korean). METHODS: Methylcellulose (MC, control), GPD (1,200 mg/kg), or BWD (6,000 mg/kg) was orally administered to rats either as a single dose or multiple doses prior to gefitinib administration. To examine the effects of a single dose of the herbal medicines, gefitinib (10 mg/kg) was orally administered after 5 min or 1 h of MC or the herbal medicine pretreatments. To examine the effects of the multiple doses of the herbal medicines, gefitinib (10 mg/kg) was orally administered following 7 consecutive days of the administration of MC or each herbal medicine. The plasma concentrations of gefitinib were determined with liquid chromatography-tandem mass spectrometry assay. The plasma concentration time profiles of gefitinib were analyzed with a noncompartmental analysis. RESULTS: Gefitinib was rapidly absorbed and showed a monoexponential decline with an elimination half-life of 3.7-4.1 h. The pharmacokinetics of gefitinib was not affected by GPD pretreatment. However, a significantly lower maximum plasma concentration (Cmax, P<0.05) and area under the curve (P<0.05), and a delayed time to reach Cmax (Tmax, P<0.01) were observed in both single- and multipledose BWD-pretreated rats compared with the control rats. CONCLUSIONS: BWD and not GPD might delay and interfere with gefitinib absorption. Further evaluations of the clinical significance of these findings are needed. PMID- 29335864 TI - Ethanol Extract of Lycopodium serratum Thunb. Attenuates Lipopolysaccharide Induced C6 Glioma Cells Migration via Matrix Metalloproteinase-9 Expression. AB - OBJECTIVE: To elucidate how ethanol extract of L. serratum (ELS) could exert anti migratory effects on glioma with the suppression of nuclear factor kappa B (NF kappaB) downstream pathway. METHODS: Cell viability of ELS on C6 glioma was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. Nitric oxide (NO) assay and 2',7'-dichlorofluorescin diacetate (DCFH-DA) assay were applied to measure NO production and reactive oxygen species (ROS) generation on lipopolysaccharide (LPS)-induced C6 glioma cells. NF-kappaB, mitogen-activated protein kinase (MAPK), inducible nictric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein were determined by Western blot. Wound healing assay was used to investigate the inhibitory effect of ELS on fetal bovine serum (FBS)-induced migration and matrix metalloproteinase (MMP)-9 and -2 activity was examined by zymography. RESULTS: ELS suppressed LPS-induced phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 through inhibiting the expression of chemokine CCL2 (or monocyte chemoattractant protein-1, MCP-1). In addition, ELS inhibited the expression of iNOS, COX-2, and the production of NO by LPS in C6 glioma cells. ELS also significantly decreased serum-induced migration of C6 glioma cells in scratch wound healing in a dose-dependent manner (P<0.01). The activity of MMP-9 and -2 were also significantly attenuated by ELS with LPS treatment (P<0.01). CONCLUSIONS: Our results suggest that downregulation of MMP-9 gene expression might be involved in the anti-migration effect of ELS against LPS-induced C6 glioma cells. PMID- 29335865 TI - Beneficial Effect of Berberis amurensis Rupr. on Penile Erection. AB - OBJECTIVE: To investigate whether the methanol extract of Berberis amurensis Rupr. (BAR) augments penile erection using in vitro and in vivo experiments. METHODS: The ex vivo study used corpus cavernosum strips prepared from adult male New Zealand White rabbits. In in vivo studies for intracavernous pressure (ICP), blood pressure, mean arterial pressure (MAP), and increase of peak ICP were continuously monitored during electrical stimulation of Sprague-Dawley rats. RESULTS: Preconstricted with phenylephrine (PE) in isolated endotheliumintact rabbit corus cavernosum, BAR relaxed penile smooth muscle in a dose-dependent manner, which was inhibited by pretreatment with NG-nitro-L-arginine methyl ester (L-NAME), a nitric oxide synthase inhibitor, and 1H-[1,2,4]-oxadiazole-[4,3 alpha]-quinoxalin-1-one, a soluble guanylyl cclase inhibitor. BAR significantly relaxed penile smooth muscles dose-dependently in ex vivo, and this was inhibited by pretreatment with L-NAME 1H-[1,2,4]-oxadiazole-[4,3-alpha]-quinoxalin-1-one. BAR-induced relaxation was significantly attenuated by pretreatment with tetraethylammonium (TEA, P<0.01), a nonselective K+ channel blocker, 4 aminopyridine (4-AP, P<0.01), a voltage-dependent K+ channel blocker, and charybdotoxin (P<0.01), a large and intermediate conductance Ca2+ sensitive-K+ channel blocker, respectively. BAR induced an increase in peak ICP, ICP/MAP ratio and area under the curve dose dependently. CONCLUSION: BAR augments penile erection via the nitric oxide/cyclic guanosine monophosphate system and Ca2+ sensitive-K+ (BKCa and IKCa) channels in the corpus cavernosum. PMID- 29335866 TI - Balancing Effect of Biejiajian Oral Liquid () on ACE-Ang II-AT1R Axis and ACE2 Ang-(1-7)-Mas Axis in Rats with CCl4-Induced Hepatic Fibrosis. AB - OBJECTIVE: To explore the effect of Biejiajian Oral Liquid (, BOL) on CCl4 induced hepatic fibrosis in rats by detecting the changes in the levels of angiotensin II (Ang II), angiotensin-(1-7) [Ang-(1-7)], angiotensin-converting enzyme (ACE), ACE2, angiotensin II type 1 receptor (AT1R), Mas, etc. METHODS: A total of 180 Wistar rats were randomly divided into two groups by random digital table method: prevention experiment and treatment experiment. Each group was further subdivided into the following 6 subgroups: normal control group, model group, vitamin E [100 mg/(kg.d), VE] group, enalapril [10 mg/(kg.g), Ena] group, high-dosage [20 g/(kg.d)] BOL group, and low-dosage [10 g/(kg.d)] BOL group. The hepatic fibrosis rat model was established by subcutaneous injection of CCl4 for 6 weeks. Prevention experiment and treatment experiment were administered with specific drugs at different times. At the end of treatment experiment, the pathological changes of liver were observed after hematoxylin-eosin staining. The expressions of ingredients in renin-angiotensin-aldosterone system (RAAS) such as AngII, Ang-(1-7), ACE, ACE2, AT1R, Mas, renin, CYP11B2 and angen in liver were detected by enzyme linked immunosorbent assay, immunohistochemistry method or reverse transcription-polymerase chain reaction, respectively. RESULTS: The levels of AngII and Ang-(1-7) at the 6th week increased by 496.10% and 73.64%, respectively, compared with those at the 2nd week in the model group (P<0.01). With prevention or treatment with high-dosage BOL, there was an evident reduction of AngII level but an improvement of Ang-(1-7) level. Specifically, AngII level of high-dosage group decreased by 77.50% in prevention experiment (P=0.000) and by 76.93% in treatment experiment (P=0.002) compared with that in the model group. Ang-(1-7) level increased by 91.69% in prevention experiment (P=0.006) and by 70.77% in the treatment experiment (P=0.010) compared with that in the model group. The expression levels of mRNA of renin, ACE, CYP11B2, angen and AT1R decreased by 58.15%, 99.90%, 99.84%, 99.99% and 99.99% (all P<0.01), respectively. CONCLUSIONS: BOL could help resist liver fibrosis in rats by enhancing the level of each ingredient in ACE2-Ang-(1-7)-Mas axis, while decreasing the level of each ingredient in ACE-AngII-AT1R axis. To some extent, BOL could enhance the regulation of RAAS in rats with CCl4-induced hepatic fibrosis. PMID- 29335867 TI - Can CT-based radiomics signature predict KRAS/NRAS/BRAF mutations in colorectal cancer? AB - OBJECTIVES: To investigate whether CT-based radiomics signature can predict KRAS/NRAS/BRAF mutations in colorectal cancer (CRC). METHODS: This retrospective study consisted of a primary cohort (n = 61) and a validation cohort (n = 56) with pathologically confirmed CRC. Patients underwent KRAS/NRAS/BRAF mutation tests and contrast-enhanced CT before treatment. A total of 346 radiomics features were extracted from portal venous-phase CT images of the entire primary tumour. Associations between the genetic mutations and clinical background, tumour staging, and histological differentiation were assessed using univariate analysis. RELIEFF and support vector machine methods were performed to select key features and build a radiomics signature. RESULTS: The radiomics signature was significantly associated with KRAS/NRAS/BRAF mutations (P < 0.001). The area under the curve, sensitivity, and specificity for predicting KRAS/NRAS/BRAF mutations were 0.869, 0.757, and 0.833 in the primary cohort, respectively, while they were 0.829, 0.686, and 0.857 in the validation cohort, respectively. Clinical background, tumour staging, and histological differentiation were not associated with KRAS/NRAS/BRAF mutations in both cohorts (P>0.05). CONCLUSIONS: The proposed CT-based radiomics signature is associated with KRAS/NRAS/BRAF mutations. CT may be useful for analysis of tumour genotype in CRC and thus helpful to determine therapeutic strategies. KEY POINTS: * Key features were extracted from CT images of the primary colorectal tumour. * The proposed radiomics signature was significantly associated with KRAS/NRAS/BRAF mutations. * In the primary cohort, the proposed radiomics signature predicted mutations. * Clinical background, tumour staging, and histological differentiation were unable to predict mutations. PMID- 29335869 TI - Magnetic resonance cholangiopancreatography with GRASE sequence at 3.0T: does it improve image quality and acquisition time as compared with 3D TSE? AB - OBJECTIVES: The current study evaluated the clinical usefulness of the gradient and spin-echo (GRASE) sequence with single breath-hold in 3.0 T magnetic resonance cholangiopancreatography (MRCP). We compared the acquisition time and image quality between GRASE and breath navigator-triggered 3D turbo spin echo (3D TSE). METHODS: We examined 54 consecutive patients who underwent MRCP with GRASE and 3D TSE. We compared the image acquisition time and contrast-to-noise ratio (CNR) between the common bile duct (CBD) and liver. Overall image quality, blurring, motion artifacts and CBD visibility were scored on a 4-point scale by two radiologists. Paired t-tests were used to compare the variables. RESULTS: The mean image acquisition time was 95 % shorter with the GRASE than with 3D TSE (GRASE: 20 s; 3D TSE: 6 min 27 s). The CNR of GRASE was significantly higher than that of 3D TSE (GRASE: 25.4 +/- 13.9 vs. 3D TSE: 18.2 +/- 9.6, p < 0.01). All qualitative scores for GRASE were significantly better than those for 3D TSE. CONCLUSIONS: 3.0 T MRCP with GRASE sequence with single breath-hold significantly improved the CNR of CBD with a 95 % shorter acquisition time compared with conventional 3D MRCP with 3D TSE. KEY POINTS: * MRCP acquisition time was 95% shorter with GRASE than with 3D TSE. * Overall image quality of GRASE was significantly better than 3D TSE. * Pancreaticobiliary tree visibility with GRASE was better than that with 3D TSE. PMID- 29335868 TI - Added value of ancillary imaging features for differentiating scirrhous hepatocellular carcinoma from intrahepatic cholangiocarcinoma on gadoxetic acid enhanced MR imaging. AB - OBJECTIVES: To determine ancillary features that help distinguish between scirrhous hepatocellular carcinoma (S-HCC) and intrahepatic cholangiocarcinoma (ICC) and investigate added value of ancillary features to enhancement pattern based diagnosis on gadoxetic acid-enhanced MRI. METHODS: This retrospective study included 96 patients with S-HCCs and 120 patients with ICCs who underwent gadoxetic acid MRI before surgical resection. Two observers reviewed MRIs of the tumours. After determining ancillary features for differentiating tumour types, we measured the diagnostic performance of adding ancillary features to enhancement pattern-based diagnosis. RESULTS: T2 central darkness, capsule and septum were significant and independent features differentiating S-HCC from ICC (p <= .06). Adding ancillary features to enhancement pattern led to increased accuracy (observer 1, 78.9 vs. 93.8 %; observer 2, 80.3 vs. 92.8 %; p < .001), sensitivity (observer 1, 74.5 vs. 96.4 %; observer 2, 77.1 vs. 93.2 %; p < .001 and .001), and specificity (observer 1, 82.5 vs. 91.7 %; observer 2, 82.9 vs. 92.5 %; p = .006 and .005) for diagnosis of S-HCC by differentiation from ICC. CONCLUSIONS: Adding ancillary features capsule, septum and T2 central darkness to conventional enhancement patterns on gadoxetic acid-enhanced MRI improved accuracy, sensitivity and specificity for S-HCC diagnosis with differentiation from ICC. KEY POINTS: * Capsule, septum, and T2 central darkness were ancillary features for S-HCC. * A typical HCC enhancement was seen in 31.3% of S-HCCs. * Ancillary MRI features were useful in differentiation between S-HCC and ICC. PMID- 29335870 TI - A New Species of Pararrhopalites Bonet & Tellez (Collembola, Symphypleona, Sminthuridae) from Iron Caves in Brazil. AB - A second species of the genus Pararrhopalites is described from caves inserted in iron ore lithology. Both species present a particular sensory organ in the interantennal region. The new species, Pararrhopalites ubiquum n.sp., has a wider distribution and it is not restricted to a single cave, as it is the case of Pararrhopalites sideroicus Zeppelini & Brito, in Fla Entomol 97(4):1733-1744, 2014, being found even in the Mesovoid Shallow Substratum. An update to the previously published identification key is presented. PMID- 29335871 TI - Validation of tautomeric and protomeric binding modes by free energy calculations. A case study for the structure based optimization of D-amino acid oxidase inhibitors. AB - Optimization of fragment size D-amino acid oxidase (DAAO) inhibitors was investigated using a combination of computational and experimental methods. Retrospective free energy perturbation (FEP) calculations were performed for benzo[d]isoxazole derivatives, a series of known inhibitors with two potential binding modes derived from X-ray structures of other DAAO inhibitors. The good agreement between experimental and computed binding free energies in only one of the hypothesized binding modes strongly support this bioactive conformation. Then, a series of 1-H-indazol-3-ol derivatives formerly not described as DAAO inhibitors was investigated. Binding geometries could be reliably identified by structural similarity to benzo[d]isoxazole and other well characterized series and FEP calculations were performed for several tautomers of the deprotonated and protonated compounds since all these forms are potentially present owing to the experimental pKa values of representative compounds in the series. Deprotonated compounds are proposed to be the most important bound species owing to the significantly better agreement between their calculated and measured affinities compared to the protonated forms. FEP calculations were also used for the prediction of the affinities of compounds not previously tested as DAAO inhibitors and for a comparative structure-activity relationship study of the benzo[d]isoxazole and indazole series. Selected indazole derivatives were synthesized and their measured binding affinity towards DAAO was in good agreement with FEP predictions. PMID- 29335872 TI - Disruptor of telomeric silencing 1-like (DOT1L): disclosing a new class of non nucleoside inhibitors by means of ligand-based and structure-based approaches. AB - Chemical inhibition of chromatin-mediated signaling involved proteins is an established strategy to drive expression networks and alter disease progression. Protein methyltransferases are among the most studied proteins in epigenetics and, in particular, disruptor of telomeric silencing 1-like (DOT1L) lysine methyltransferase plays a key role in MLL-rearranged acute leukemia Selective inhibition of DOT1L is an established attractive strategy to breakdown aberrant H3K79 methylation and thus overexpression of leukemia genes, and leukemogenesis. Although numerous DOT1L inhibitors have been several structural data published no pronounced computational efforts have been yet reported. In these studies a first tentative of multi-stage and LB/SB combined approach is reported in order to maximize the use of available data. Using co-crystallized ligand/DOT1L complexes, predictive 3-D QSAR and COMBINE models were built through a python implementation of previously reported methodologies. The models, validated by either modeled or experimental external test sets, proved to have good predictive abilities. The application of these models to an internal library led to the selection of two unreported compounds that were found able to inhibit DOT1L at micromolar level. To the best of our knowledge this is the first report of quantitative LB and SB DOT1L inhibitors models and their application to disclose new potential epigenetic modulators. PMID- 29335873 TI - Agricultural non-point source pollution management in a reservoir watershed based on ecological network analysis of soil nitrogen cycling. AB - The Miyun Reservoir plays a pivotal role in providing drinking water for the city of Beijing. In this research, ecological network analysis and scenario analysis were integrated to explore soil nitrogen cycling of chestnut and Chinese pine forests in the upper basin of the Miyun Reservoir, as well as to seek favorable fertilization modes to reduce agricultural non-point source pollution. Ecological network analysis results showed that (1) the turnover time was 0.04 to 0.37 year in the NH4+ compartment and were 15.78 to 138.36 years in the organic N compartment; (2) the Finn cycling index and the ratio of indirect to direct flow were 0.73 and 11.92 for the chestnut forest model, respectively. Those of the Chinese pine forest model were 0.88 and 29.23, respectively; and (3) in the chestnut forest model, NO3- accounted for 96% of the total soil nitrogen loss, followed by plant N (2%), NH4+ (1%), and organic N (1%). In the Chinese pine forest, NH4+ accounted for 56% of the total soil nitrogen loss, followed by organic N (34%) and NO3- (10%). Fertilization mode was identified as the main factor affecting soil N export. To minimize NH4+ and NO3- outputs while maintaining the current plant yield (i.e., 7.85e0 kg N/year), a fertilization mode of 162.50 kg N/year offered by manure should be adopted. Whereas, to achieve a maximum plant yield (i.e., 3.35e1 kg N/year) while reducing NH4+ and NO3- outputs, a fertilization mode of 325.00 kg N/year offered by manure should be utilized. This research is of wide suitability to support agricultural non-point source pollution management at the watershed scale. PMID- 29335874 TI - Mass balance of arsenic fluxes in rivers impacted by gold mining activities in Paracatu (Minas Gerais State, Brazil). AB - Arsenic (As) is a dangerous and carcinogenic element and drinking water is its main pathway of human exposure. Gold mines are widely recognized as important sources of As pollution. This work proposes the assessment of As distribution along watersheds surrounding "Morro do Ouro" gold mine (Paracatu, southeastern Brazil). A balance approach between filtered As fluxes (As < 0.45 MUm) and suspended particulate material (AsSPM) in different river segments was applied. Ultrafiltration procedure was used to categorize As into the following classes: particulate > 0.1 MUm, colloidal < 0.1 MUm to > 10 kDa, dissolved < 10 kDa to > 1 kDa, and truly dissolved < 1 kDa. By applying this approach, arsenic contributions from mining facilities were quantified in order to identify critical fluvial segments and support decision makers in actions of remediation. The mass balance indicated the occurrence of a decreasing gradient from upstream to downstream: (i) of the As concentrations higher than the limit established by Brazilian law (10 MUg L-1); (ii) of the ratio between specific fluxes (g As km-2 day-1) and those determined using an uncontaminated watershed (a proxy for estimating the anthropic contribution), from 103 to 101; (iii) of the specific fluxes As < 0.45 MUm and AsSPM from 102 to 100; and (iv) of the negative balance output minus input for each river segment that suggests As accumulation in sediments along the rivers in both urban and rural areas, mainly due to SPM sedimentation and sorption by Fe oxyhydroxides. Ultrafiltration shattering showed concentrations of decreasing As with particle size; the SPM load (> 0.1 MUm) was almost one order higher to dissolved load (< 1 kDa). PMID- 29335875 TI - Seasonal variation and source apportionment of PM2.5-bound trace elements at a coastal area in southwestern Taiwan. AB - The aim of this study is to investigate the seasonal variations and source apportionment on atmospheric fine particulate matter (PM2.5) mass and associated trace element concentrations at a coastal area, in Chiayi County of southwestern Taiwan. Particle measurements were conducted in 2015. Twenty-three trace elements in PM2.5 were analyzed using inductively coupled plasma mass spectrometry (ICP MS). Multiple approaches of the enrichment factor (EF) analysis and positive matrix fraction (PMF) model were used to identify potential sources of PM2.5 bound trace elements. Daily mean concentration of PM2.5 in cold season (25.41 MUg m-3) was higher than that in hot season (13.10 MUg m-3). The trace elements contributed 11.02 and 10.74% in total PM2.5 mass concentrations in cold season and hot season, respectively. The results of EF analysis confirmed that Sb, Mo, and Cd were the top three anthropogenic trace elements in the PM2.5; furthermore, carcinogenic elements (Cr, Ni, and As) and other trace elements (Na, K, V, Cu, Zn, Sr, Sn, Ba, and Pb) were attributable to anthropogenic emissions in both cold and hot seasons; however, highly enriched Li and Mn were observed only in cold season. The PMF model identified four main sources: iron and steel industry, soil and road dust, coal combustion, and traffic-related emission. Each of these sources has an annual mean contribution of 8.2, 27.5, 11.2, and 53.1%, respectively, to PM2.5. The relative dominance of each identified source varies with changing seasons. The highest contributions occurred in cold season for iron and steel industry (66.2%), in hot season for traffic-related emission (58.4%), soil and road dust (22.0%), and coal combustion (2.8%). These findings revealed that the PM2.5 mass concentration, PM2.5-bound trace element concentrations, and their contributions were various by seasons. PMID- 29335876 TI - Hydrogen metabolic patterns driven by Clostridium-Streptococcus community shifts in a continuous stirred tank reactor. AB - The hydrogen (H2) production efficiency in dark fermentation systems is strongly dependent on the occurrence of metabolic pathways derived from the selection of microbial species that either consume molecular H2 or outcompete hydrogenogenic bacteria for the organic substrate. In this study, the effect of organic loading rate (OLR) on the H2 production performance, the metabolic pathways, and the microbial community composition in a continuous system was evaluated. Two bacterial genera, Clostridium and Streptococcus, were dominant in the microbial community depending on the OLR applied. At low OLR (14.7-44.1 gLactose/L-d), Clostridium sp. was dominant and directed the system towards the acetate-butyrate fermentation pathway, with a maximum H2 yield of 2.14 molH2/molHexose obtained at 29.4 gLactose/L-d. Under such conditions, the volumetric hydrogen production rate (VHPR) was between 3.2 and 11.6 LH2/L-d. In contrast, relatively high OLR (58.8 and 88.2 gLactose/L-d) favored the dominance of Streptococcus sp. as co-dominant microorganism leading to lactate production. Under these conditions, the formate production was also stimulated serving as a strategy to dispose the surplus of reduced molecules (e.g., NADH2+), which theoretically consumed up to 5.72 LH2/L d. In such scenario, the VHPR was enhanced (13.7-14.5 LH2/L-d) but the H2 yield dropped to a minimum of 0.74 molH2/molHexose at OLR = 58.8 gLactose/L-d. Overall, this research brings clear evidence of the intrinsic occurrence of metabolic pathways detrimental for biohydrogen production, i.e., lactic acid fermentation and formate production, suggesting the use of low OLR as a strategy to control them. PMID- 29335877 TI - Development of cyclic AMP receptor protein-based artificial transcription factor for intensifying gene expression. AB - Vector-dependent gene overexpression typically relies on an efficient operon and sufficient RNA polymerases (RNAPs). The lac (lactose) operon is a paradigm of transcription control, and cyclic AMP receptor protein (CRP) is a global regulator capable of recruiting RNAPs. However, the gap between lac operon and CRP has not been well bridged. In this work, CRP was fused to lac repressor protein (lacI) to form an artificial transcription factor (ATF) with the expectation that when LacI acted on the lacO-positioned upstream of gene of interest, the LacI-tethered CRP would trap RNAPs and thus improve the expression of PuuC, an aldehyde dehydrogenase catalyzing 3-hydroxypropionaldehyde (3-HPA) to 3-hydroxypropionic acid (3-HP) in Klebsiella pneumoniae. As expected, SDS-PAGE and HPLC showed enhanced PuuC expression and 3-HP production, respectively, compared to the control strain without expressing chimeric protein LacI-CRP. Moreover, quantitative real-time PCR demonstrated increased transcription levels of both PuuC and RNAP coding genes. In shake-flask cultivation, the recombinant K. pneumoniae strain coexpressing LacI-CRP and PuuC produced 1.67-fold of 3-HP relative to the stain only overexpressing PuuC. In bioreactor cultivation, the strain coexpressing LacI-CRP and PuuC produced 35.1 g/L 3-HP, whereas the strain without expressing LacI-CRP generated only 9.8 g/L 3-HP. Overall, these results indicated that as an ATF, LacI-CRP significantly boosted PuuC expression and 3-HP production. We envision that LacI-CRP as a plug-and-play part can be used for regulating gene expression. PMID- 29335878 TI - Antioxidant Compounds Recovery from Jucara Residue by Thermal Assisted Extraction. AB - This study aimed to recover bioactive compounds by solid-liquid extraction from the agro-industrial residue obtained during jucara fruits processing into pulp. A preliminary study using different solvents (methanol, ethanol and water) indicated ethanol in aqueous solution as the best solvent for antioxidants recovery. Then, a Box-Behnken design was applied considering as independent variables the solvent composition (30-70% ethanol in water), temperature (30-70 degrees C) and time (30-60 min), in order to evaluate the effects of these factors on antioxidant activity in jucara extract. Results showed that the extracts with higher antioxidant activity were obtained using 30% ethanol at 70 degrees C for 60 min; measurements included ABTS and DPPH assays, determination of total phenolic content and total monomeric anthocyanins. Furthermore, the effect of pH in antioxidants recovery was evaluated. For this purpose, the 30% ethanol solution was acidified to pH 1 and 2 with HCl. Principal component analysis showed the formation of three distinct groups: one characterized by high bioactive compounds content (pH 1.0), another with superior antioxidant activity (pH 5.75, non-acidified), and finally the group at pH 2 presenting the worst concentrations in the evaluated responses. HPLC analysis showed the presence of cyanidin-3-O-rutinoside and cyanidin-3-O-glucoside in the extracts. Therefore, the conventional solid-liquid extraction using renewable solvent can be successfully applied to recover bioactive compounds from jucara residue, which can be used by different food industries. PMID- 29335879 TI - Current Approaches and New Developments in the Pharmacological Management of Tourette Syndrome. AB - Tourette syndrome (TS) is a neurodevelopmental disorder of unknown etiology characterized by spontaneous, involuntary movements and vocalizations called tics. Once thought to be rare, TS affects 0.3-1% of the population. Tics can cause physical discomfort, emotional distress, social difficulties, and can interfere with education and desired activities. The pharmacologic treatment of TS is particularly challenging, as currently the genetics, neurophysiology, and neuropathology of this disorder are still largely unknown. However, clinical experience gained from treating TS has helped us better understand its pathogenesis and, as a result, derive treatment options. The strongest data exist for the antipsychotic agents, both typical and atypical, although their use is often limited in children and adolescents due to their side-effect profiles. There are agents in a variety of other pharmacologic categories that have evidence for the treatment of TS and whose side-effect profiles are more tolerable than the antipsychotics; these include clonidine, guanfacine, baclofen, topiramate, botulinum toxin A, tetrabenazine, and deutetrabenazine. A number of new agents are being developed and tested as potential treatments for TS. These include valbenazine, delta-9-tetrahydrocannabidiol, and ecopipam. Additionally, there are agents with insufficient data for efficacy, as well as agents that have been shown to be ineffective. Those without sufficient data for efficacy include clonazepam, ningdong granule, 5-ling granule, omega-3 fatty acids, and n acetylcysteine. The agents that have been shown to be ineffective include pramipexole and metoclopramide. We will review all of the established pharmacologic treatments, and discuss those presently in development. PMID- 29335881 TI - Reply to Reck-Burneo et al.: imaging anorectal and cloacal malformations. PMID- 29335883 TI - ? PMID- 29335882 TI - Clinical response to Vim's thalamic stereotactic radiosurgery for essential tremor is associated with distinctive functional connectivity patterns. AB - INTRODUCTION: Essential tremor (ET) is the most common movement disorder. Drug resistant ET can benefit from standard surgical stereotactic procedures (deep brain stimulation, thalamotomy) or minimally invasive high-intensity focused ultrasound (HIFU) or stereotactic radiosurgical thalamotomy (SRS-T). Resting state fMRI (rs-fMRI) is a non-invasive imaging method acquired in absence of a task. We examined whether rs-fMRI correlates with tremor score on the treated hand (TSTH) improvement 1 year after SRS-T. METHODS: We included 17 consecutive patients treated with left unilateral SRS-T in Marseille, France. Tremor score evaluation and rs-fMRI were acquired at baseline and 1 year after SRS-T. Resting state data (34 scans) were analyzed without a priori hypothesis, in Lausanne, Switzerland. Based on degree of improvement in TSTH, to consider SRS-T at least as effective as medication, we separated two groups: 1, <= 50% (n = 6, 35.3%); 2, > 50% (n = 11, 64.7%). They did not differ statistically by age (p = 0.86), duration of symptoms (p = 0.41), or lesion volume at 1 year (p = 0.06). RESULTS: We report TSTH improvement correlated with interconnectivity strength between salience network with the left claustrum and putamen, as well as between bilateral motor cortices, frontal eye fields and left cerebellum lobule VI with right visual association area (the former also with lesion volume). Longitudinal changes showed additional associations in interconnectivity strength between right dorsal attention network with ventro-lateral prefrontal cortex and a reminiscent salience network with fusiform gyrus. CONCLUSIONS: Brain connectivity measured by resting-state fMRI relates to clinical response after SRS-T. Relevant networks are visual, motor, and attention. Interconnectivity between visual and motor areas is a novel finding, revealing implication in movement sensory guidance. PMID- 29335880 TI - The long-term effect of erythropoiesis stimulating agents given to preterm infants: a proton magnetic resonance spectroscopy study on neurometabolites in early childhood. AB - BACKGROUND: Erythropoiesis stimulating agents (ESAs) are neuroprotective in cell and animal models of preterm birth. Prematurity has been shown to alter neurometabolite levels in children in studies using proton magnetic resonance spectroscopy (1H-MRS). OBJECTIVE: We hypothesized that ESA treatment in premature infants would tend to normalize neurometabolites by 4-6 years of age. MATERIALS AND METHODS: Children in a longitudinal study of neurodevelopment underwent MRI and 1H-MRS at approximately 4 years and 6 years of age. Prematurely born children (500-1,250 g birth weight) received ESAs (erythropoietin or darbepoetin) or placebo during their neonatal hospitalization, and these groups were compared to healthy term controls. 1H-MRS spectra were obtained from the anterior cingulate (gray matter) and frontal lobe white matter, assessing combined N-acetylaspartate and N-acetylaspartylglutamate (tNAA), myo-inositol, choline compounds (Cho), combined creatine and phosphocreatine, and combined glutamate and glutamine. RESULTS: No significant (P<=0.5) group differences were observed for any metabolite level. Significant age-related increases in white-matter tNAA and Cho were observed, as well as a trend for increased gray-matter tNAA. CONCLUSION: Neither prematurity nor neonatal ESA treatment was associated with differences in brain metabolite levels in the children of this study at a significance level of 0.05. These findings suggest that earlier differences that might have existed had normalized by 4-6 years of age or were too small to be statistically significant in the current sample. PMID- 29335884 TI - Effects of moderate exercise on biochemical, morphological, and physiological parameters of the pancreas of female mice with estrogen deprivation and dyslipidemia. AB - Menopausal women are at high risk of developing heart disease. However, physical exercise practice can reverse this scenario. We evaluated the biochemical, morphological, and physiological effects of moderate aerobic physical exercise on the pancreas of knockout mice for LDL receptor with estrogen deprivation by ovariectomy. Animals were divided into six groups (n = 5): sedentary non ovariectomized control; sedentary ovariectomized control; trained ovariectomized control; sedentary non-ovariectomized LDL-R knockout; sedentary ovariectomized LDL-R knockout; and trained ovariectomized LDL-R knockout. Physical exercise practice promoted improvement in biometric and biochemical parameters analyzed, with reduction of visceral adipose tissue and VLDL, triglycerides, total cholesterol, and blood glucose levels. In addition, physical exercise practice altered the morphology of pancreatic islets and improved their response to the effects of menopause. Thus, physical exercise practice was fundamental to minimize the effects of dyslipidemia associated with ovariectomy in the pancreatic tissue of LDL-R knockout animals, contributing to reduce the risk of developing cardiac diseases in the menopause period. PMID- 29335885 TI - Glottic Foreign Body Removal: A Novel Approach. PMID- 29335886 TI - Effect of actual age on outcome at discharge in patients by surgical clipping and endovascular coiling for ruptured cerebral aneurysm in Japan. AB - The Japanese population features the highest rate of elderly individuals worldwide. However, the difference of actual age indication for surgical clipping (SC) and endovascular coiling (EC) has never reported. We clarified the effect of actual age on poor outcome at discharge in patients by each treatment for ruptured cerebral aneurysm according to the Japanese Stroke Data Bank. A total of 3593 patients with ruptured saccular cerebral aneurysm were treated by SC and/or EC between 2000 and 2013. The effect of actual age on poor outcome (modified Rankin scale [mRS] score > 2) at discharge was evaluated by the cutoff age using receiver operating characteristic analysis for each treatment. There were 2666 cases in the SC group and 881 cases in the EC group. The cutoff age for poor outcome was 3 to 9 years older for EC than for SC. The gap of cutoff age between two treatments was 3 years shorter in mild subarachnoid hemorrhage than severe cases. The gap of cutoff age between two treatments was 7 years in elderly patients over 65 years old. The cutoff age was 78 years old for both SC and EC in elderly female patients. In conclusion, the cutoff age for poor mRS score > 2 was 3 to 9 years older for EC than for SC. Actual age was one of the indications for elderly patients to achieve the optimum outcome; however, the treatment indication should be carefully considered based on the condition in each country. PMID- 29335887 TI - Sphingadienes show therapeutic efficacy in neuroblastoma in vitro and in vivo by targeting the AKT signaling pathway. AB - Neuroblastoma is a childhood malignancy that accounts for approximately 15% of childhood cancer deaths. Only 20-35% of children with metastatic neuroblastoma survive with standard therapy. Identification of more effective therapies is essential to improving the outcome of children with high-stage disease. Sphingadienes (SD) are growth-inhibitory sphingolipids found in natural sources including soy. They exhibit chemopreventive activity in mouse models of colon cancer, where they mediate cytotoxicity by inhibiting key pro-carcinogenic signaling pathways. In this study, the effect of SD on neuroblastoma was analyzed. Low micromolar concentrations of SD were cytotoxic to transformed and primary neuroblastoma cells independently of N-Myc amplification status. SD induced both caspase-dependent apoptosis and autophagy in neuroblastoma cells. However, only inhibition of caspase-dependent apoptosis protected neuroblastoma cells from SD-mediated cytotoxicity. SD also inhibited AKT activation in neuroblastoma cells as shown by reduced phosphorylated AKT levels. Pre-treatment with insulin attenuated SD-mediated cytotoxicity in vitro. SD-loaded nanoparticles (NP) administered parenterally to immunodeficient mice carrying neuroblastoma xenografts resulted in cytotoxic levels of SD in the circulation and significantly reduced tumor growth compared to vehicle-treated controls. Analysis of tumor extracts demonstrated reduced AKT activation in tumors of mice treated with SD-NP compared to controls treated with empty NP. Our findings indicate SD are novel potential chemotherapeutic agents that promote neuroblastoma cell death and reduce tumorigenicity in vivo. PMID- 29335888 TI - Root lengthening with apical closure in two maxillary immature permanent central incisors after placement of mineral trioxide aggregate (MTA) as an apical plug. AB - BACKGROUND: Necrosis of permanent immature teeth is a common reason for consultation in paediatric dentistry. Apexification is a therapeutic procedure aiming to create an apical calcified barrier in open apex teeth. CASE REPORT: Two cases are presented in which apexification were completed on immature permanent traumatised incisors using a mineral trioxide aggregate (MTA) plug. FOLLOW-UP: At 2 and 5 years showed apical closure and radicular elongation beyond the MTA plug. CONCLUSION: Unexpectedly, a regeneration of mineral tissues beyond the MTA plug occurred which is an uncommon outcome. PMID- 29335890 TI - Effectiveness of Sodium-Glucose Cotransporter-2 Inhibitor as an Add-on Drug to GLP-1 Receptor Agonists for Glycemic Control of a Patient with Prader-Willi Syndrome: A Case Report. AB - INTRODUCTION: Diabetes patients with Prader-Willi syndrome (PWS) are obese because of hyperphagia; weight control by dietary modification and medicine is required for glycemic control. There are several recent reports showing the effectiveness of GLP-1 receptor agonists (GLP-1RAs) for diabetes treatment in PWS. CASE REPORT: A 36-year-old Japanese male patient was diagnosed with PWS at 10 years of age. At age 16 years, he was diagnosed with diabetes and began to take several kinds of oral hypoglycemic agents. At age 29 years, his BMI was 39.1 kg/m2 and he was referred to our department for diabetes and obesity treatment. In the present case, the HbA1c was not improved by GLP-1RAs despite a 28-kg BW reduction, which included a 9-kg loss of muscle. Apprehensive of further loss of muscle mass, basal insulin of insulin glargine was administered in addition to GLP-1RAs. Immediately after the addition of tofogliflozin, a sodium-glucose cotransporter-2 (SGLT2) inhibitor, the patient's HbA1c decreased dramatically with only about an additional 3% BW reduction. We note an improvement in our case of lipid deposition in the pancreas confirmed by abdominal CT after the improvement of HbA1c. It is unknown whether this improvement of fatty pancreas was a cause or an effect of the improved glycemic control in the present case. CONCLUSION: This finding clearly supports the effectiveness of combining SGLT2 inhibitors with GLP-1RAs for treatment of patients with PWS and non-alcoholic fatty pancreas disease. PMID- 29335889 TI - Comparison of gray matter volume between migraine and "strict-criteria" tension type headache. AB - BACKGROUND: Despite evidently distinct symptoms, tension-type headache (TTH) and migraine are highly comorbid and exhibit many similarities in clinical practice. The purpose of this study was to investigate whether both types of headaches are similar in brain morphology. METHODS: Consecutive patients with TTH and age- and sex-matched patients with migraine and healthy controls were enrolled for brain magnetic resonance imaging examination. Patients with TTH were excluded if they reported any headache features or associated symptoms of migraine. Changes in gray matter (GM) volume associated with headache diagnosis (TTH vs. migraine) and frequency (episodic vs. chronic) were examined using voxel-based morphometry. The correlation with headache profile and the discriminative ability between TTH and migraine were also investigated for these GM changes. RESULTS: In comparison with controls (n = 43), the patients with TTH (25 episodic and 24 chronic) exhibited a GM volume increase in the anterior cingulate cortex, supramarginal gyrus, temporal pole, lateral occipital cortex, and caudate. The patients with migraine (31 episodic and 25 chronic) conversely exhibited a GM volume decrease in the orbitofrontal cortex. These GM changes did not correlate with any headache profile. A voxel-wise 2 * 2 factorial analysis further revealed the substantial effects of headache types and frequency in the comparison of GM volume between TTH and migraine. Specifically, the migraine group (vs. TTH) had a GM decrease in the superior and middle frontal gyri, cerebellum, dorsal striatum, and precuneus. The chronic group (vs. episodic group) otherwise demonstrated a GM decrease in the bilateral insula and anterior cingulate cortex. In receiver operating characteristic analysis, the GM volumes of the left superior frontal gyrus and right cerebellum V combined had good discriminative ability for distinguishing TTH and migraine (area under the curve = 0.806). CONCLUSIONS: TTH and migraine are separate headache disorders with different characteristics in relation to GM changes. The major morphological difference between the two types of headaches is the relative GM decrease of the prefrontal and cerebellar regions in migraine, which may reflect a higher allostatic load associated with this disabling headache. PMID- 29335891 TI - Serum Bilirubin Concentration is Associated with Left Ventricular Remodeling in Patients with Type 2 Diabetes Mellitus: A Cohort Study. AB - INTRODUCTION: Previous studies have shown that serum bilirubin concentration is inversely associated with the risk of cardiovascular disease. The relationship between serum bilirubin concentration and left ventricular geometry, however, has not been investigated in patients with diabetes mellitus. METHODS: In this cohort study, 158 asymptomatic patients with type 2 diabetes mellitus without overt heart disease were enrolled. Left ventricular structure and function were assessed using echocardiography. Serum bilirubin concentration, glycemic control, lipid profile, and other clinical characteristics were evaluated, and their association with left ventricular geometry was determined. Patients with New York Heart Association Functional Classification greater than I, left ventricular ejection fraction less than 50%, history of coronary artery disease, severe valvulopathy, chronic atrial fibrillation, or creatinine clearance less than 30 ml/min, and those receiving insulin treatment, were excluded. RESULTS: Univariate analyses showed that relative wall thickness (RWT) was significantly correlated with diastolic blood pressure (P = 0.003), HbA1c (P = 0.024), total cholesterol (P = 0.043), urinary albumin (P = 0.023), and serum bilirubin concentration (P = 0.009). There was no association between left ventricular mass index and serum bilirubin concentration. Multivariate linear regression analysis showed that log RWT was positively correlated with diastolic blood pressure (P = 0.010) and that log RWT was inversely correlated with log bilirubin (P = 0.003). In addition, the patients with bilirubin less than 0.8 mg/dl had a higher prevalence of concentric left ventricular remodeling compared with those with bilirubin 0.8 mg/dl or more. CONCLUSION: Our study shows that the serum bilirubin concentration may be associated with the progression of concentric left ventricular remodeling in patients with type 2 diabetes mellitus. PMID- 29335892 TI - Is sugammadex alone sufficient to cause anaphylaxis? PMID- 29335893 TI - Neurological prognosis of 6 cases after chest compression during general anesthesia. AB - INTRODUCTION: Data on the outcomes after chest compression (CC) of patients who are under general anesthesia (GA) are limited. The present study aimed to evaluate the neurological outcomes in patients who received CC while under GA. METHODS: The patients who received CC while under GA, between 2010 and 2015, in Kyoto Medical Center were surveyed retrospectively. The primary outcome was poor neurologic function or death, as defined by a cerebral performance category score (CPC) score of 3-5 on day 28. RESULTS: Six patients received CC while under GA, and four patients had poor neurological outcomes with a CPC score of 4 or 5 on day 28. All these patients required emergency operation because of their primary disease. CONCLUSION: Even if the patients were monitored and immediately managed under GA, ineffective management of preoperative conditions tended to result in the poor neurological prognosis. PMID- 29335894 TI - Management of periprosthetic shoulder infections with the use of a permanent articulating antibiotic spacer. AB - INTRODUCTION: Management of periprosthetic shoulder infections (PSIs) still remains challenging. We conducted a retrospective case study to assess the outcomes of definitive articulating antibiotic spacer implantation in a cohort of elderly, low-demanding patients. We hypothesized that in patients with low functional demands seeking pain relief with chronic PSIs, treatment with a definitive articulating antibiotic spacer would lead to satisfying results concerning eradication of the infection, improvement of pain, and improving shoulder function. MATERIALS AND METHODS: 19 patients underwent definitive articulating antibiotic spacer implantation for the treatment of an infected shoulder arthroplasty. Mean age at surgery was 70.2 years. Patients were assessed pre-operatively with functional assessment including Constant-Murley score, and objective examination comprehending ROM, visual analog scale pain score, and patient subjective satisfaction (excellent, good, satisfied, or unsatisfied) score. Radiographs were taken to examine signs of loosening, and change in implant positioning. RESULTS: At the most recent follow-up, none of the patients had clinical or radiographic signs suggesting recurrent infection. Most patients reported satisfying subjective and objective outcomes. Follow-up examination showed significant improvement of all variables compared to pre-operative values (p < 0.001). Radiographs did not show progressive radiolucent lines or change in the position of the functional spacer. In one case, glenoid osteolysis was reported, which did not affect the clinical outcome. CONCLUSIONS: In selected elderly patients with low functional demands seeking pain relief with infected shoulder arthroplasty, definitive management with a cement spacer is a viable treatment option that helps in eradicating shoulder infection and brings satisfying subjective and objective outcomes. LEVEL OF EVIDENCE: Case series, Level IV. PMID- 29335895 TI - Pharmacokinetics, Antiviral Activity, and Safety of Rilpivirine in Pregnant Women with HIV-1 Infection: Results of a Phase 3b, Multicenter, Open-Label Study. AB - INTRODUCTION: Physiologic changes during pregnancy may impact the pharmacokinetics of drugs. In addition, efficacy and safety/tolerability concerns have been identified for some antiretroviral agents. METHODS: Human immunodeficiency virus (HIV)-1-infected pregnant women (18-26 weeks gestation) receiving the non-nucleoside reverse transcriptase inhibitor rilpivirine 25 mg once daily were enrolled in this phase 3b, open-label study examining the impact of pregnancy on the pharmacokinetics of rilpivirine when it is given in combination with other antiretroviral agents. Blood samples (collected over the 24-h dosing interval) to assess total and unbound rilpivirine plasma concentrations were obtained during the second and third trimesters (24-28 and 34 38 weeks gestation, respectively) and 6-12 weeks postpartum. Pharmacokinetic parameters were derived using noncompartmental analysis and compared (pregnancy versus postpartum) using linear mixed effects modeling. Antiviral and immunologic response and safety were assessed. RESULTS: Nineteen women were enrolled; 15 had evaluable pharmacokinetic results. Total rilpivirine exposure was 29-31% lower during pregnancy versus postpartum; differences were less pronounced for unbound (pharmacodynamically active) rilpivirine. At study entry, 12/19 (63.2%) women were virologically suppressed; 10/12 (83.3%) women were suppressed at the postpartum visit. Twelve infants were born to the 12 women who completed the study (7 discontinued); no perinatal viral transmission was observed among 10 infants with available data. Rilpivirine was generally safe and well tolerated in women and infants exposed in utero. CONCLUSION: Despite decreased rilpivirine exposure during pregnancy, treatment was effective in preventing mother-to-child transmission and suppressing HIV-1 RNA in pregnant women. Results suggest that rilpivirine 25 mg once daily, as part of individualized combination antiretroviral therapy, may be an appropriate option for HIV-1-infected pregnant women. TRIAL REGISTRATION: ClinicalTrials.gov Identifier, NCT00855335. PMID- 29335896 TI - Familial occurrence of gastroschisis: a population-based overview on recurrence risk, sex-dependent influence, and geographical distribution. AB - PURPOSE: There is uncertainty over whether familial recurrences in gastroschisis might be higher. Moreover, scant information is available regarding its sociodemographic features. We aim to explore the recurrence risk, sex-dependent influence, and geographical distribution of familial gastroschisis. METHODS: A systematic review of the literature and data extraction from population-based studies published 1970-2017 (PubMed/MEDLINE) was independently performed by two reviewers. Familial ocurrence of gastroschisis, whereas sociodemographic features from 11 studies were pooled including 862 probands as a base. A descriptive analysis and Chi-square test were performed. RESULTS: Twenty-four probands had a positive family history of gastroschisis including 49 affected family members, for a recurrence risk of 5.7 and 3% adjusted for proband. Siblings' recurrence was 4.3%. Sex-dependent influence analysis (n = 879, from three studies) evidenced an increased susceptibility to gastroschisis in males (2.5%) compared to females (1.3%) adjusted for proband. Heterogeneity was identified by Fisher's exact test (P = 0.023). CONCLUSION: Our findings support a greater liability attributable to familial factors on gastroschisis along with significant information for family and prenatal counseling. We suggest that future studies should include for a more accurate account for both familial and environmental confounding factors to uncover relatives and environmental exposures that more limited family histories may have missed. PMID- 29335897 TI - Splenectomy in systemic lupus erythematosus and autoimmune hematologic disease: a comparative analysis. AB - : The objective of the study is to analyze the efficacy and safety of splenectomy in the management of refractory autoimmune thrombocytopenia (AT)/autoimmune hemolytic anemia (AIHA) associated or not with systemic lupus erythematosus. Thirty-four patients after splenectomy due to severe AT and/or AIHA were divided into group 1 (G1) 18 SLE/APS patients: 9 AT/SLE patients, 6 SLE/antiphospholipid syndrome (APS), and 3 primary APS. Group 2 (G2): 16 patients without SLE/APS: 2 Fisher-Evans syndrome and 14 AIHA. Surgery approach when (1) platelets <= 50,000/ml despite 2 weeks on medical therapy, (2) medically dependent, and (3) medically intolerant or after two hemolytic crises in AIHA patients. Splenectomy response: (1) complete (CR): >= 150,000 platelets/ml, (2) partial: 50,000 149,000/ml, or (3) none: <= 50,000/ml. CR for AIHA: hemoglobin >=9 g/dl. STATISTICAL ANALYSIS: descriptive statistics and chi-square test. The mean age was 34.6 years; mean follow-up: 28.5 months. Open splenectomy in 15/34 vs laparoscopy in 19/34 (p = NS). CR in 15/34, G1: 4/18, G2: 11/16, (p = 0.006). Complications in 6/34, 5 from G2 vs 1 from G1 (p = 0.05). Relapse in 7/18 patients in G1 and 3/16 in G2 (p = 0.05). Open and laparoscopic splenectomies in SLE and AT patients are as effective as in those without SLE; however, patients with SLE and APS had more relapses. PMID- 29335898 TI - The novel transcription factor TRP interacts with ZFP5, a trichome initiation related transcription factor, and negatively regulates trichome initiation through gibberellic acid signaling. AB - KEY MESSAGE: The trichome-related protein (TRP) is a novel transcription factor (TF) that negatively regulates trichome initiation-related TFs through gibberellin (GA) signaling. Trichomes, which are outgrowths of leaf epidermal cells, provide the plant with a first line of defense against damage from herbivores and reduce transpiration. The initiation and development of trichomes are regulated by a network of positively or negatively regulating transcription factors (TFs). However, little information is currently available on transcriptional regulation related to trichome formation. Here, we report a novel TF Trichome-Related Protein (TRP) that was observed to negatively regulate the trichome initiation-related TFs through gibberellic acid (GA) signaling. ProTRP:GUS revealed that TRP was only expressed in the trichome. The TRP loss-of function mutant (trp) had an increased number of trichomes on the flower, cauline leaves, and main inflorescence stems compared to the wild-type. In contrast, TRP overexpression lines (TRP-Ox) exhibited a decreased number of trichomes on cauline leaves and main inflorescence stem following treatment with exogenous GA. Moreover, the expressions of trichome initiation regulators (GIS, GIS2, ZFP8, GL1, and GL3) increased in trp plants but decreased in TRP-Ox lines after GA treatment. TRP was observed to physically interact with ZFP5, a C2H2 TF that controls trichome cell development through GA signaling, both in vivo and in vitro. Based on these results, we suggest that TRP functions upstream of the trichome initiation regulators and represses the binding of ZFP5 to the ZFP8 promoter. PMID- 29335899 TI - The ultrasonographic "whirlpool sign" in testicular torsion: valuable tool or waste of valuable time? A systematic review and meta-analysis. AB - PURPOSE: A positive whirlpool sign (WS) is defined as the presence of a spiral like pattern when the spermatic cord is assessed during ultrasonography (US), using standard, high-resolution ultrasonography (HRUS) and/or color Doppler sonography (CDS), in the presence of testicular torsion. The objective of this review was to assess the validity and accuracy of this sign by performing a comprehensive systematic literature review and meta-analysis. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta analyses (PRISMA) guidelines, a comprehensive literature search was performed (August, 2017), using the following databases: BMJ Best Practice, Cochrane Library, Embase, PubMed, Scopus, and Web of Science. Selected studies were further assessed for relevance and quality using the Oxford 2010 Critical Appraisal Skills Program (CASP). RESULTS: Of the studies assessed, a total of 723 participants were included, with a mean of 72.3 (SD 71.9) participants. Of the participants, 226 (31.3%) were diagnosed with testicular torsion (TT). Meta analysis of the studies that provided sufficient data resulted in a pooled sensitivity and specificity of the WS of 0.73 (95% CI, 0.65-0.79) and 0.99 (95% CI, 0.92-0.99), respectively. Removal of all neonates increased the pooled sensitivity to 0.92 (95% CI, 0.70-0.98) while the pooled specificity remained almost unchanged at 0.99 (95% CI, 0.95-1.00). The estimated summary effect of all studies with sufficient data was 4.34 (95% CI, 1.01-7.67; n = 394; p = 0.001). A large degree of heterogeneity was suggested by an I2 statistic of 88.27% (95% CI, 68.60-98.68%). Removal of neonatal subjects increased the estimated summary effect to 5.32 (95% CI, 1.59-9.05; n = 375; p = 0.001). CONCLUSION: The WS, when correctly diagnosed, may be viewed as a very definitive sign for TT in the pediatric and adult populations. However, its role in neonates is limited. PMID- 29335900 TI - Hypercomplex pedicle subtraction osteotomies: definition, early clinical and radiological results and complications. AB - PURPOSE: To describe hypercomplex pedicle subtraction osteotomies (HyC-PSO) for adult spine deformity with sagittal imbalance in terms of preoperative, intraoperative and postoperative outcomes and complications. METHODS: From a prospective single centre database, patients undergoing PSO between January 2016 and May 2017 were reviewed. HyC-PSO were defined as those in patients with one of the following conditions: sagittal correction > 45 degrees needed at a single level or at 1-3 consecutive vertebrae, more than 60 degrees of total sagittal correction needed and PSO on segments of the spine with congenital deformities. RESULTS: 22 patients were included, 14 had standard PSO (group A) and 8 had HyC PSO (group B). Significant correction of lumbar lordosis (LL) and pelvic (PT) was noted in both groups (p < 0.01). Operative time was longer in HyC-PSO, 604 min compared to standard PSO, 478 min. A trend versus greater intraoperative blood loss (3837 vs 2285 ml) and greater intraoperative blood infusion (from cell saver plus homologous, 2306 vs 1280 ml) was recorded in HyC-PSO (ns). Patients in group B received significantly more blood units intra and postoperatively (8.25 vs 4.71 units, p = 0.006). Sagittal correction at the PSO level (54.7 degrees -30 degrees to 85 degrees -vs 26.8 degrees -8 degrees to 39 degrees -, p = 0.000) and total sagittal correction (64.5 degrees -50 to 95 degrees -vs 39.8 degrees -20 degrees to 51 degrees -, p = 0.000) were greater in HyC-PSO. PROMs at the last available follow-up did not show significant differences between groups for any of the outcomes analyzed. Complications were similar in both groups. CONCLUSION: This is the first report on hypercomplex pedicle subtraction osteotomies. Hypercomplex PSO describes a subset of clinical scenarios with increased surgical effort that can be measured as longer surgical time and greater blood transfusion requirements. Successful correction of misalignment can be achieved in this specific group of patients, and clinical results and complications profile could be similar to standard PSO procedures. PMID- 29335901 TI - Letter to the Editor concerning "Spinal movement and dural sac compression during airway management in a cadaveric model with atlanto-occipital instability" by Liao S, Schneider NRE, Weilbacher F, et al. (2017) Eur Spine J; doi:10.1007/s00586-017-5416-9. PMID- 29335902 TI - Letter to the Editor concerning "Clinical and radiological factors related to the presence of motor deficit in lumbar disc prolapse: a prospective analysis of 70 consecutive cases with neurological deficit" by V. Krishnan et al. [Eur Spine J (2017) 26:2642-2649). PMID- 29335903 TI - Anterior cervical corpectomy and fusion versus posterior laminoplasty for the treatment of oppressive myelopathy owing to cervical ossification of posterior longitudinal ligament: a meta-analysis. AB - PURPOSE: The purpose of this research is to compare the clinical efficacy, postoperative complication and surgical trauma between anterior cervical corpectomy and fusion versus posterior laminoplasty for the treatment of oppressive myelopathy owing to cervical ossification of the posterior longitudinal ligament (OPLL). STUDY DESIGN: Systematic review and meta-analysis. METHODS: An comprehensive search of literature was implemented in three electronic databases (Embase, Pubmed, and the Cochrane library). Randomized or non-randomized controlled studies published since January 1990 to July 2017 that compared anterior cervical corpectomy and fusion (ACCF) versus posterior laminoplasty (LAMP) for the treatment of cervical oppressive myelopathy owing to OPLL were acquired. Exclusion criteria were non-human studies, non-controlled studies, combined anterior and posterior operative approach, the other anterior or posterior approaches involving cervical discectomy and fusion and laminectomy with (or without) instrumented fusion, revision surgeries, and cervical myelopathy caused by cervical spondylotic myelopathy. The quality of the included articles was evaluated according to GRADE. The main outcome measures included: preoperative and postoperative Japanese Orthopedic Association (JOA) score; neuro functional recovery rate; complication rate; reoperation rate; preoperative and postoperative C2-C7 Cobb angle; operation time and intraoperative blood loss; and subgroup analysis was performed according to the mean preoperative canal occupying ratio (Subgroup A:the mean preoperative canal occupying ratio < 60%, and Subgroup B:the mean preoperative canal occupying ratio >= 60%). RESULTS: A total of 10 studies containing 735 patients were included in this meta-analysis. And all of the selected studies were non-randomized controlled trials with relatively low quality as assessed by GRADE. The results revealed that there was no obvious statistical difference in preoperative JOA score between the ACCF and LAMP groups in both subgroups. Also, in subgroup A (the mean preoperative canal occupying ratio < 60%), no obvious statistical difference was observed in the postoperative JOA score and neurofunctional recovery rate between the ACCF and LAMP groups. But, in subgroup B (the mean preoperative canal occupying ratio >= 60%), the ACCF group illustrated obviously higher postoperative JOA score and neurofunctional recovery rate than the LAMP group (P < 0.01, WMD 1.89 [1.50, 2.28] and P < 0.01, WMD 24.40 [20.10, 28.70], respectively). Moreover, the incidence of both complication and reoperation was markedly higher in the ACCF group compared with LAMP group (P < 0.05, OR 1.76 [1.05, 2.97] and P < 0.05, OR 4.63 [1.86, 11.52], respectively). In addition, the preoperative cervical C2-C7 Cobb angle was obviously larger in the LAMP group compared with ACCF group (P < 0.05, WMD - 5.77 [- 9.70, - 1.84]). But no statistically obvious difference was detected in the postoperative cervical C2-C7 Cobb angle between the two groups. Furthermore, the ACCF group showed significantly more operation time as well as blood loss compared with LAMP group (P < 0.01, WMD 111.43 [40.32,182.54], and P < 0.01, WMD 111.32 [61.22, 161.42], respectively). CONCLUSION: In summary, when the preoperative canal occupying ratio < 60%, no palpable difference was tested in postoperative JOA score and neurofunctional recovery rate. But, when the preoperative canal occupying ratio >= 60% ACCF was associated with better postoperative JOA score and the recovery rate of neurological function compared with LAMP. Synchronously, ACCF in the cure for cervical myelopathy owing to OPLL led to more surgical trauma and more incidence of complication and reoperation. On the other hand, LAMP had gone a diminished postoperative C2-C7 Cobb angle, that might be a cause of relatively higher incidence of postoperative late neurofunctional deterioration. In brief, when the preoperative canal occupying ratio < 60%, LAMP seems to be effective and safe. However, when the preoperative canal occupying ratio >= 60%, we prefer to choose ACCF while complications could be controlled by careful manipulation and advanced surgical techniques. No matter which option you choose, benefits and risks ought to be balanced. PMID- 29335904 TI - The SAFE pathway for cardioprotection: is this a promising target? AB - The survivor activating factor enhancement (SAFE) pathway was discovered as an alternative intrinsic pro-survival signaling pathway to the reperfusion injury salvage kinase pathway for cardioprotection against ischemia-reperfusion injury. The delineation of this pathway, made of key components such as cytokines of the immune system and transcription factors, has brought major advancements in our understanding on how the heart is able to protect itself against ischemia reperfusion injury. In this viewpoint, we describe the major steps leading to the discovery of the SAFE pathway in small animal models to date and we discuss its translation to large animals and humans. PMID- 29335905 TI - Influence of antiviral therapy on the liver stiffness in chronic HBV hepatitis. AB - PURPOSE: The aim of this study was to evaluate the effects of antiviral therapy on liver stiffness measurement (LSM). METHODS: Two hundred HBV patients were enrolled from four hospital centers in southern Italy; median age was 50.7 (25 75) males were 68%; 171 patients underwent to liver biopsy and 200 patients had LSM at baseline and 189 at the end of follow-up. One hundred and forty-nine patients were treated with nucleos(t)ide analogs, while 51 patients were untreated. The cutoffs of the LSM, related to the fibrosis stages, were as follows: non-advanced fibrosis <= 8.1 kPa and advanced fibrosis >= 8.2 Kpa. RESULTS: At baseline, the median value of LSM was 14.1 kPa for advanced fibrosis/cirrhosis and 6.9 kPa for non-advanced fibrosis. LSM was performed at 24 months from the start of therapy. The treated patients (68% received Entecavir and 32% Tenofovir) showed a decrease in liver stiffness measurement of 1.5 kPa (p < 0.001) in non-advanced fibrosis and of 6 kPa (p < 0.001) in advanced fibrosis/cirrhosis. In the patients not undergoing antiviral treatment, no statistically significant change of the LSM was observed (p = 0.26). A logistic binary regression model showed that the only independent factor associated with a significant change in the LSM was the liver stiffness value at baseline (odd ratio 2.855; 95% CI 1.456-5.788; (p = 0.007). CONCLUSION: Long-term antiviral therapy induced a significant reduction of liver stiffness measurement and this result may be related to the reduction of liver fibrosis. PMID- 29335906 TI - The Health Behaviors of Ethnically Diverse Women at Increased Risk of Gestational Diabetes: The Behaviors Affecting Baby and You (B.A.B.Y.) Study. AB - Objectives Cigarette smoking, low physical activity, and sedentary behavior are modifiable risk factors for adverse pregnancy outcomes. However, only one study has evaluated predictors of these health risk behaviors among women at high risk for gestational diabetes mellitus (GDM). Therefore, our goal was to examine predictors of smoking, low physical activity, and sedentary behavior during pregnancy in an ethnically diverse high risk cohort. Methods This cross-sectional analysis utilized baseline data from the Behaviors Affecting Baby and You (B.A.B.Y.) study conducted among prenatal care patients at high risk for GDM (personal history of GDM or family history of diabetes and body mass index [BMI] >= 25 kg/m2). Smoking was assessed using questions from the Pregnancy Risk Assessment Monitoring System questionnaire and sedentary behavior (top vs. lower quartiles) and moderate/vigorous physical activity (bottom vs. upper quartile) via the Pregnancy Physical Activity Questionnaire. Results Participants (n = 400) enrolled at a mean of 12.4 (SD 3.6) weeks gestation. A total of 150 (44.1%) engaged in one, 37 (10.9%) in two, and 4 (1.2%) in three risk behaviors. Lower household income and not having children at home were each associated with a 2-6 fold increased odds of smoking, high sedentary behavior, and engaging in at least one risk behavior. Being married, Hispanic or of younger age was associated with a 2-6 fold reduced odds of smoking. BMI and personal history of GDM were not associated with risk behaviors. Conclusions for Practice Findings help characterize high risk groups and inform prenatal interventions targeting these health risk behaviors. PMID- 29335907 TI - Content of First Prenatal Visits. AB - Objective The purpose of this study was to examine the content of the first prenatal visit within an academic medical center clinic and to compare the topics discussed to 2014 American College of Obstetrics and Gynecologists guidelines for the initial prenatal visit. Methods Clinical interactions were audio recorded and transcribed (n = 30). A content analysis was used to identify topics discussed during the initial prenatal visit. Topics discussed were then compared to the 2014 ACOG guidelines for adherence. Coded data was queried though the qualitative software and reviewed for accuracy and content. Results First prenatal visits included a physician, nurse practitioner, nurse midwife, medical assistant, medical students, or a combination of these providers. In general, topics that were covered in most visits and closely adhered to ACOG guidelines included vitamin supplementation, laboratory testing, flu vaccinations, and cervical cancer screening. Topics discussed less often included many components of the physical examination, education about pregnancy, and screening for an identification of psychosocial risk. Least number of topics covered included prenatal screening. Conclusions for Practice While the ACOG guidelines may include many components that are traditional in addition to those based on evidence, the guidelines were not closely followed in this study. Identifying new ways to disseminate information during the time constrained initial prenatal visit are needed to ensure improved patient outcomes. PMID- 29335908 TI - Surgery for Abdominal Well-Differentiated Liposarcoma. AB - OPINION STATEMENT: Retroperitoneal sarcomas are rare tumors of which liposarcoma is the most common histology. Surgical resection remains the mainstay of therapy, particularly for the well-differentiated subtype. They can grow to massive size before causing symptoms or detection. Well-differentiated liposarcoma, while having a negligible metastatic rate, is fraught with a high local recurrence rate, despite a complete surgical resection. Reasons for this are not completely known but may be related to a field defect of the retroperitoneal fat creating a niche for recurrence. These tumors are classically chemo- and radio-resistant. Surgical therapy of recurrences can be challenging, but remains the treatment of choice for well-differentiated liposarcoma. In an attempt to improve on survival and recurrence rates for retroperitoneal liposarcoma, an extended resection approach has been promoted by a few groups. This involves the en bloc resection of contiguous organs that are not macroscopically involved. While this has improved local recurrence rates, benefit for overall survival has not been demonstrated. Interestingly, the improvement in local recurrence rate appeared to be driven by histology and was most improved in the well-differentiated subtype compared to historical data. However, for well-differentiated liposarcomas that are multifocal, this approach may be less useful. The application of this approach still requires further study in terms of balancing increased morbidity of extended resection against the potential for multiple surgeries for recurrence. PMID- 29335909 TI - Persistent posterior seroma after laparoscopic repair of ventral abdominal wall hernias with expanded polytetrafluoroethylene mesh: prevalence, independent predictors and detached tacks : Retrospective review. AB - PURPOSE: A persistent seroma located posterior to a mesh (PPS) remains a little known complication after laparoscopic ventral hernia repair (LVHR). The aim of this large case series was to analyse the prevalence and clinical course as well as identify related factors and independent predictors of PPS. METHODS: All 1288 adult patients who underwent a LVHR with an expanded polytetrafluoroethylene mesh (ePTFE) between January 2003 and July 2014 were reviewed. Those who underwent an abdominal computed tomography (CT) scan more than 3 months afterwards (n = 166) were included and their scans were analysed. The primary outcome measure was the prevalence of a PPS and its characteristics. The secondary outcome measures were identification of significantly related factors and independent predictors of PPS. RESULTS: A PPS was observed in 14 of 166 analysed CT scans (8.4%). Eleven patients were symptomatic; conservative treatment (wait-and-see policy) was successful in eight. Three underwent relaparoscopy with removal of a thick neoperitoneum. Several instances of tack and/or mesh detachment were identified on CT scans and during relaparoscopy. Independent predictors were: > 3 trocars (RR 5.0, 95% CI 1.6-15.8) and use of a mesh larger than > 300 cm2 (RR 9.9, 95% CI 1.9-51.2). CONCLUSIONS: A PPS is a relatively common complication after LVHR with an ePTFE mesh of usually larger hernias. A "wait-and-see" approach seems justified in most cases. Some require laparoscopic excision of the thick neoperitoneum. A PPS can cause tack and mesh detachment but the clinical consequences are unclear. Recurrences have not been observed in this series. PMID- 29335910 TI - Duration and magnitude of postoperative risk of venous thromboembolism after planned inguinal hernia repair in men: a population-based cohort study. AB - PURPOSE: Little is known regarding the magnitude and timing of the risk of VTE following inguinal hernia surgery. We aimed to determine the absolute and relative rates of venous thromboembolism (VTE) following planned inguinal hernia repair. METHODS: We analysed male adults with a first inguinal hernia repair with no prior record of VTE from the Clinical Practice Research Datalink, linked to the Hospital Episode Statistics (2001-2011). Crude rates and adjusted hazard ratios (HR) of the first VTE were calculated using Cox regression analysis to compare specific time periods following the surgery compared to the general population. RESULTS: We identified 28,782 men who underwent an inguinal hernia repair with 53 (0.18%) having a first VTE in the 90 days following surgery. The overall rate of VTE in the first 90 days following surgery was 7.61 per 1000 person years (pyrs) (95% CI 5.82-9.96). Increasing age, a body mass index > 30 kg/m2 and an in-patient procedure were associated with an increased risk of VTE, when compared to the general population. The risk of VTE was highest in the 1st month following the surgery with a 2.3- (aHR 2.33; 95% CI 1.09-4.99) and 3.5- (aHR 3.47; 95% CI 2.07-5.83) fold increased risk compared to the general population for both day case and planned in-patient procedures, respectively. CONCLUSIONS: Reassuringly, the absolute rates of VTE following inguinal hernia repair are low. Patients should be informed that their peak risk of VTE is during the 1st month following the surgery. Further studies on the optimum duration of thromboprophylaxis following surgery are required in high-risk patients undergoing hernia repair. PMID- 29335911 TI - Biotechnology software in the digital age: are you winning? AB - There is a digital revolution taking place and biotechnology companies are slow to adapt. Many pharmaceutical, biotechnology, and industrial bio-production companies believe that software must be developed and maintained in-house and that data are more secure on internal servers than on the cloud. In fact, most companies in this space continue to employ large IT and software teams and acquire computational infrastructure in the form of in-house servers. This is due to a fear of the cloud not sufficiently protecting in-house resources and the belief that their software is valuable IP. Over the next decade, the ability to quickly adapt to changing market conditions, with agile software teams, will quickly become a compelling competitive advantage. Biotechnology companies that do not adopt the new regime may lose on key business metrics such as return on invested capital, revenue, profitability, and eventually market share. PMID- 29335912 TI - Unprecedented response to combination BRAF and MEK inhibitors in adult anaplastic ganglioglioma. PMID- 29335913 TI - Analyzing the interactions of mRNAs, miRNAs, lncRNAs and circRNAs to predict competing endogenous RNA networks in glioblastoma. AB - Cross-talk between competitive endogenous RNAs (ceRNAs) may play a critical role in revealing potential mechanisms of tumor development and physiology. Glioblastoma is the most common type of malignant primary brain tumor, and the mechanisms of tumor genesis and development in glioblastoma are unclear. Here, to investigate the role of non-coding RNAs and the ceRNA network in glioblastoma, we performed paired-end RNA sequencing and microarray analyses to obtain the expression profiles of mRNAs, lncRNAs, circRNAs and miRNAs. We identified that the expression of 501 lncRNAs, 1999 mRNAs, 2038 circRNAs and 143 miRNAs were often altered between glioblastoma and matched normal brain tissue. Gene ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses were performed on these differentially expressed mRNAs and miRNA-mediated target genes of lncRNAs and circRNAs. Furthermore, we used a multi-step computational framework and several bioinformatics methods to construct a ceRNA network combining mRNAs, miRNAs, lncRNAs and circRNA, based on co-expression analysis between the differentially expressed RNAs. We identified that plenty of lncRNAs, CircRNAs and their downstream target genes in the ceRNA network are related to glutamatergic synapse, suggesting that glutamate metabolism is involved in glioma biological functions. Our results will accelerate the understanding of tumorigenesis, cancer progression and even therapeutic targeting in glioblastoma. PMID- 29335914 TI - Accuracy and trending of non-invasive hemoglobin measurement during different volume and perfusion statuses. AB - The evolution of non-invasive hemoglobin measuring technology would save time and improve transfusion practice. The validity of pulse co-oximetry hemoglobin (SpHb) measurement in the perioperative setting was previously evaluated; however, the accuracy of SpHb in different volume statuses as well as in different perfusion states was not well investigated. The aim of this work is to evaluate the accuracy and trending of SpHb in comparison to laboratory hemoglobin (Lab-Hb) during acute bleeding and after resuscitation. Seventy patients scheduled for major orthopedic procedures with anticipated major blood loss were included. Radical-7 device was used for continuous assessment of SpHb, volume status [via pleth variability index (PVI)] and perfusion status [via perfusion index (PI)]. Lab-Hb and SpHb were measured at three time-points, a baseline reading, after major bleeding, and after resuscitation. Samples were divided into fluid responsive and fluid non-responsive samples, and were also divided into high-PI and low-PI samples. Accuracy of SpHb was determined using Bland-Altman analysis. Trending of SpHb was evaluated using polar plot analysis. We obtained 210 time matched readings. Fluid non-responsive samples were 106 (50.5%) whereas fluid responsive samples were 104 (49.5%). Excellent correlation was reported between Lab-Hb and SpHb (r = 0.938). Excellent accuracy with moderate levels of agreement was also reported between both measures among all samples, fluid non-responsive samples, fluid-responsive samples, high-PI samples, and low-PI samples [Mean bias (limits of agreement): 0.01 (- 1.33 and 1.34) g/dL, - 0.08 (- 1.27 and 1.11) g/dL, 0.09 (- 1.36 and 1.54) g/dL, 0.01 (- 1.34 to 1.31) g/dL, and 0.04 (- 1.31 to 1.39) g/dL respectively]. Polar plot analysis showed good trending ability for SpHb as a follow up monitor. In conclusion, SpHb showed excellent correlation with Lab-Hb in fluid responders, fluid non-responders, low-PI, and high PI states. Despite a favorable mean bias of 0.01 g/dL for SpHb, the relatively wide levels of agreement (- 1.3 to 1.3 g/dL) might limit its accuracy. SpHb showed good performance as a trend monitor. PMID- 29335915 TI - Phenylephrine and paradoxically increased muscle tissue oxygenation: is the mechanism related to local venoconstriction or augmented venous return? PMID- 29335916 TI - Association between obstructive sleep apnea and non-alcoholic fatty liver disease: a systematic review and meta-analysis. AB - The relationship between obstructive sleep apnea (OSA) and non-alcoholic fatty liver disease (NAFLD) has been an issue of great concern. The primary purpose of this study was to determine the influence of OSA on the levels of liver enzymes including alanine transaminase (ALT) and aspartate transaminase (AST). The secondary purpose was to estimate the effect of OSA on the histological lesions of NAFLD, such as steatosis, lobular inflammation, ballooning degeneration, fibrosis, as well as NAFLD activity score (NAS). A systematic literature review using PubMed, Cochrane Library, Embase, and Ovid technologies from January 2007 to April 2017 was performed, and 9 studies (2272 participants) that met the selection criteria were evaluated. The present study demonstrated that OSA was related to ALT levels, but no significant correlation was found with AST levels. The subgroup analysis showed that the severity of OSA was associated with ALT levels, not with AST levels. The meta-regression analysis showed that age, sex, homeostasis model assessment, diabetes mellitus, body mass index, and waist circumference did not have a significant effect on the levels of ALT and AST. OSA was also found to be significantly correlated with steatosis, lobular inflammation, ballooning degeneration, and fibrosis, but was not correlated with NAS. OSA was independently related to the development and progression of NAFLD in terms of liver enzyme level and histological alterations. Future studies should investigate the possible relevant mechanisms, thereby guiding the exploration of potential therapeutic implications to prevent the progression of disease. PMID- 29335917 TI - Basal sympathetic predominance in periodic limb movements in sleep after continuous positive airway pressure. AB - PURPOSE: This study investigated the basal autonomic regulation in patients with obstructive sleep apnea (OSA) showing periodic limb movements in sleep (PLMS) emerging after therapy with continuous positive airway pressure (CPAP). METHODS: Data of patients with OSA undergoing a first polysomnography for diagnosis and a second polysomnography for therapy with CPAP were reviewed. Patients with OSA showing PLMS on the first polysomnography were excluded. By using heart rate variability analysis, epochs without any sleep events and continuous effects from the second polysomnography were retrospectively analyzed. RESULTS: Of 125 eligible patients, 30 with PLMS after therapy with CPAP (PLMS group) and 30 not showing PLMS on both polysomnography (non-PLMS group) were randomly selected for the analysis. No significant differences in the demographic characteristics and variables of polysomnographies were identified between the groups. Although one trend of low root mean square of successive differences (RMSSD) between intervals of adjacent normal heart beats (NN intervals) in the PLMS group was observed, patients in the PLMS group had significantly low normalized high-frequency (n-HF) and high-frequency (HF) values, but high normalized low frequency (n-LF) and high ratio of LF to HF (LF/HF ratio). After adjustment for confounding variables, PLMS on the second polysomnography was significantly associated with RMSSD (beta = - 6.7587, p = 0.0338), n-LF (beta = 0.0907, p = 0.0148), n-HF (beta = - 0.0895, p = 0.0163), log LF/HF ratio (beta = 0.4923, p = 0.0090), and log HF (beta = - 0.6134, p = 0.0199). CONCLUSIONS: Patients with OSA showing PLMS emerging after therapy with CPAP may have a basal sympathetic predominance with potential negative cardiovascular effects. PMID- 29335919 TI - Inter- and intracellular colonization of Arabidopsis roots by endophytic actinobacteria and the impact of plant hormones on their antimicrobial activity. AB - Many actinobacteria live in close association with eukaryotes such as fungi, insects, animals and plants. Plant-associated actinobacteria display (endo)symbiotic, saprophytic or pathogenic life styles, and can make up a substantial part of the endophytic community. Here, we characterised endophytic actinobacteria isolated from root tissue of Arabidopsis thaliana (Arabidopsis) plants grown in soil from a natural ecosystem. Many of these actinobacteria belong to the family of Streptomycetaceae with Streptomyces olivochromogenes and Streptomyces clavifer as well represented species. When seeds of Arabidopsis were inoculated with spores of Streptomyces strain coa1, which shows high similarity to S. olivochromogenes, roots were colonised intercellularly and, unexpectedly, also intracellularly. Subsequent exposure of endophytic isolates to plant hormones typically found in root and shoot tissues of Arabidopsis led to altered antibiotic production against Escherichia coli and Bacillus subtilis. Taken together, our work reveals remarkable colonization patterns of endophytic streptomycetes with specific traits that may allow a competitive advantage inside root tissue. PMID- 29335920 TI - Clergy's Beliefs About Mental Illness and Their Perception of Its Treatability: Experience from a Church-Based Prevention of Mother-to-Child HIV Transmission (PMTCT) Trial in Nigeria. AB - Clergy participating in the Healthy Beginning Initiative (N = 45), a program utilizing church workers to integrate packages of care into church activities, completed a 43-item self-administered questionnaire assessing their attitudes and beliefs about mental disorders and perception of their treatability. A majority believed that drug/alcohol use, stress and genetic inheritance could cause mental illness and that society needed to adopt more tolerant attitude toward people with mental disorders. Clergy with contact with people with mental disorders were more likely to perceive depression as treatable. In conclusion, participants had positive attitudes toward mental disorders with some believing that they are treatable. PMID- 29335921 TI - Development of real-time PCR assay for the detection of Mycoplasma bovis. AB - Mycoplasma bovis is one of the important bovine mycoplasma involved in economically important clinical conditions like respiratory diseases, otitis media, and mastitis. The present study was undertaken with the objective of developing a SYBR Green dye-based real-time PCR assay targeting uvrC gene for the diagnosis of M. bovis. The analytical sensitivity and specificity of the assay were evaluated. The test showed 103-fold more sensitivity than conventional PCR and detected down to 100 fg level of DNA. It was found to be specific, as no cross reactivity was shown with other related bacteria and Mycoplasma species. The developed assay was able to detect down to 40 copies of uvrC gene from spiked bovine milk samples. At present, this developed assay may be used as a valuable diagnostic tool for the detection of Mycoplasma bovis. PMID- 29335922 TI - Breast conserving surgery in combination with intraoperative radiotherapy after previous external beam therapy: an option to avoid mastectomy. AB - PURPOSE: Mastectomy is the standard procedure in patients with in-breast tumor recurrence (IBTR) or breast cancer after irradiation of the chest due to Hodgkin's disease. In certain cases a second breast conserving surgery (BCS) in combination with intraoperative radiotherapy (IORT) is possible. To date, data concerning BCS in combination with IORT in pre-irradiated patients are limited. This is the first pooled analysis of this special indication with a mature follow up of 5 years. METHODS: Patients with IBTR after external beam radiotherapy (EBRT; treated in two centers) for breast cancer were included. Patients with previous EBRT including the breast tissue due to other diseases were also included. IORT was performed with the IntrabeamTM-device using low kV X-rays. Clinical data including outcome for all patients and toxicity for a representative cohort (LENT-SOMA scales) were obtained. Statistical analyses were done including Kaplan-Meier estimates for local recurrence, distant metastasis and overall survival. RESULTS: A total of 41 patients were identified (39 patients with IBTR, 2 with Hodgkin's disease in previous medical history). Median follow-up was 58 months (range 4-170). No grade 3/4 acute toxicity occurred within 9 weeks. Local recurrence-free survival rate was 89.9% and overall survival was 82.7% at 5 years. Seven patients developed metastasis within the whole follow-up. CONCLUSIONS: BCS in combination with IORT in IBTR in pre irradiated patients is a feasible method to avoid mastectomy with a low risk of side effects and an excellent local control and good overall survival. PMID- 29335923 TI - How reliable are the available safety data on hormonal stimulation for fertility preservation in young women with newly diagnosed early breast cancer? PMID- 29335924 TI - BRCA1 and BRCA2 germline variants in breast cancer patients from the Republic of Macedonia. AB - PURPOSE: We aimed to establish the spectrum of BRCA1/2 mutations among the breast cancer (BC) patients from the Republic of Macedonia. METHODS: We used targeted next-generation sequencing (NGS), Sanger DNA sequencing, and multiplex ligation probe amplification analysis (MLPA) to search for point mutations and deletions/duplications involving BRCA1 and BRCA2-coding regions. RESULTS: We have analyzed a total of 313 BC patients, enriched for family history of cancer, early age of onset and bilateral and/or triple negative (TN) BC. A total of 26 pathogenic mutations were observed in 49 unrelated BC patients (49/313, 15.7%). BRCA2 mutations (27/49, 55.1%) were more common than BRCA1 mutations (22/49, 44.9%). We identified five novel point mutations, one in BRCA1 (c.4352_4356delA) and four in BRCA2 (c.151G>T, c.4707_4708delCA, c.7811_7814delTGTG, and c.9304_9305delG), as well as two novel deletions involving parts of the BRCA1 gene (c.81-?_593+?del and c.5470-?_5530+?del). The most common mutations were c.181T>G, c.5266dupC, and c.3700_3704del5 in BRCA1 and c.7879A>T, c.8317_8330del14 and c.5722_5723delCT in BRCA2 gene. Thus far, BRCA2 c.7879A>T and c.8317_8330del14 mutations have been described in several isolated cases; however, our study is the first one showing that they have a founder effect among Macedonian population. Nine recurrent mutations account for 65.3% of all of the detected mutations allowing for implementation of a fast first-step BRCA1/2 mutational screening strategy in our country. CONCLUSION: This study provides a comprehensive view of known and novel BRCA1/2 mutations in BC patients from the Republic of Macedonia and contributes to the global spectrum of BRCA1/2 mutations in breast cancer. PMID- 29335925 TI - Germline deleterious mutations in genes other than BRCA2 are infrequent in male breast cancer. AB - PURPOSE: Male breast cancer (MBC) is a rare cancer entity, with mutations in BRCA1 and BRCA2 genes accounting for ~ 10% of patients. Multiple-gene sequencing has already entered clinical practice for female breast cancer, whereas the performance of panel testing in MBC has not been studied extensively. Therefore, the aim of this study was to evaluate the clinical utility of panel testing for MBC, by the largest gene panel used so far, through investigation of patients deriving from a population with known founder effects. METHODS: Genomic DNA from one hundred and two Greek MBC patients, unselected for age and family history, was used to prepare libraries which capture the entire coding regions of 94 cancer genes. RESULTS: Loss-of-function (LoF) mutations were found in 12.7% of the cases, distributed in six genes: BRCA2, ATM, BRCA1, CHEK2, PMS2, and FANCL. BRCA2 mutations were the most frequent, followed by ATM mutations, accounting for 6.9 and 2%, respectively, while mutations in other genes were detected in single cases. Age at diagnosis or family history was not predictive of mutation status. Beyond mutations in established breast cancer predisposing genes, LoF mutations in PMS2 and FANCL among MBC patients are reported here for the first time. CONCLUSIONS: Our findings, using the largest gene panel for MBC patients so far, indicate that BRCA testing should be the primary concern for MBC patients. Until sufficient evidence arises from larger studies, multiple-gene panels may be of limited benefit for MBC and their families, at least for MBC patients of specific descent. PMID- 29335926 TI - ? PMID- 29335927 TI - miRNAs as Potential Treatment Targets and Treatment Options in Cancer. AB - Standard cancer therapies for solid malignancies, such as chemotherapy and radiotherapy, are not target specific against cancer cells and are often not fully efficacious. Chemotherapy and radiotherapy may cause side effects, and the need to develop additional strategies for cancer treatment is urgent. MicroRNAs (miRNAs) are small non-coding RNAs with heterogeneous functions and have been described in almost every known cancer model. Besides their basic tumor suppressive and oncogenic functions, they also have the potential to modulate chemotherapy and radiotherapy and to be manipulated with chemical compounds to make them chemically suitable for efficient delivery to cancer cells. It has been suggested that the level of expression of specific miRNAs could increase treatment efficacy by determining the stage of chemotherapy/radiotherapy sensitivity. Application of miRNAs alone or in combination with standard therapeutic strategies may significantly improve the success of cancer treatments in the future. PMID- 29335928 TI - CT imaging of primary pancreatic lymphoma: experience from three referral centres for pancreatic diseases. AB - PURPOSE: To describe CT characteristics of primary pancreatic lymphoma (PPL), a rare disease with features in common with adenocarcinoma. MATERIALS AND METHODS: Fourteen patients were enrolled. CT: unenhanced scan, contrast-enhanced pancreatic and venous phases. Image analysis: tumour location; peri-pancreatic vessel encasement; necrosis; enlarged lymph nodes; fat stranding; enlarged bile duct and pancreatic duct; neoplasm longest dimension, volume and density. RESULTS: Histopathological diagnoses: follicular non-Hodgkin lymphoma (5/14), diffuse large B-cell lymphoma (6/14) and high-grade B-cell lymphoma not otherwise specified (3/14). Six of 14 PPLs were located in the pancreatic head and 7/14 in the body-tail; 1/14 involved the whole gland. In 5/14 cases the superior mesenteric artery and vein were encased; splenic vein and artery encasement was depicted in 2 PPLs. Necrosis was present in 2/14. Enlarged retroperitoneal lymph nodes were found in 11 cases and fat stranding in all patients. The bile duct was dilated in six cases and the pancreatic duct in five. Mean neoplasm longest diameter and volume were 8.05 cm and 210.8 cm3. Mean tumour attenuation values were 39.1 HU at baseline, 60.6 HU in the pancreatic phase and 71.4 HU in the venous phase. CONCLUSIONS: PPL presents as a large mass lesion with delayed homogeneous enhancement; peri-pancreatic fat stranding and vessel encasement are present, without vascular infiltration. Pancreatic duct dilatation is rare. KEY POINTS: * Primary pancreatic lymphoma (PPL) is a rare haematological disease * PPL presents imaging features in common with pancreatic carcinoma but also some distinctive findings * The majority of PPLs are large lesions with delayed homogeneous enhancement * Peri-pancreatic fat stranding and vessel encasement are common in PPL * Vascular infiltration and pancreatic duct dilatation are rare in PPL. PMID- 29335930 TI - [Comments and supplement : Leukopenia and agranulocytosis under antirheumatic drug treatment in HLA B27 positive patients]. PMID- 29335929 TI - Computational model to investigate the relative contributions of different neuromuscular properties of tibialis anterior on force generated during ankle dorsiflexion. AB - This study describes a new model of the force generated by tibialis anterior muscle with three new features: single-fiber action potential, twitch force, and pennation angle. This model was used to investigate the relative effects and interaction of ten age-associated neuromuscular parameters. Regression analysis (significance level of 0.05) between the neuromuscular properties and corresponding simulated force produced at the footplate was performed. Standardized slope coefficients were computed to rank the effect of the parameters. The results show that reduction in the average firing rate is the reason for the sharp decline in the force and other factors, such as number of muscle fibers, specific force, pennation angle, and innervation ratio. The fast fiber ratio affects the simulated force through two significant interactions. This study has ranked the individual contributions of the neuromuscular factors to muscle strength decline of the TA and identified firing rate decline as the biggest cause followed by decrease in muscle fiber number and specific force. The strategy for strength preservation for the elderly should focus on improving firing rate. Graphical abstract Neuromuscular properties of Tibialis Anterior on force generated during ankle dorsiflexion. PMID- 29335931 TI - [Indications for joint replacement : Knee arthroplasty]. AB - Current demographic trends with an increasing number of older patients, have led to a rising number of patients with higher demands on performance. Osteoarthritis in younger patients caused by abnormal forms or accidents also pose new challenges for medical professionals in the orthopedic field. As a rule of thumb, all conservative therapeutic possibilities should be exhausted before starting a surgical intervention. The main aims of surgery are to reduce pain, increase mobility and quality of life. In order to qualify for total knee arthroplasty (TKA) patients must fulfil major and minor criteria; however, after TKA approximately one fifth of patients are not satisfied with the result. In order to reduce this rate, indications should be narrowly set and expectations should be thoroughly discussed with the patient prior to an intervention. The high degree of dissatisfaction must be improved by intensifying efforts in further research. PMID- 29335932 TI - The EURO-FORTA (Fit fOR The Aged) List: International Consensus Validation of a Clinical Tool for Improved Drug Treatment in Older People. AB - BACKGROUND: Drug treatment of older people is still potentially inappropriate in many cases as multimorbidity and related polypharmacy are highly prevalent. To increase the quality of drug treatment in older people, the FORTA (Fit fOR The Aged) List (first version 2012) was developed in a Delphi consensus procedure and updated (FORTA2015) by 21 experts from Germany and Austria. It has been validated in a randomized, controlled, prospective trial demonstrating significant improvement in the quality of drug treatment and clinical endpoints (VALFORTA). METHODS: Based on these results, Delphi consensus validations (two rounds) of country/region-specific FORTA Lists were conducted in the UK/Ireland, France, Poland, Italy, Spain, the Nordic countries and The Netherlands. An algorithm based on geriatric/pharmacologic expertise, publications and professional position was used to find experts in the field. RESULTS: Forty-seven experts agreed to participate in the Delphi process (return rate of 97.9%). For each country/region, the overall mean consensus coefficient (deviation from the initiator proposal) was > 0.9. FORTA Lists from six countries/regions with a minimum of four participating experts (excluding The Netherlands) plus the original FORTA List were collated into the EURO-FORTA List containing 264 items in 26 main indication groups. Two drugs had to be added to the proposed items, as proposed by at least four countries/regions; none had to be removed. CONCLUSION: This project produced seven new country/region-specific FORTA Lists, as well as the overarching EURO-FORTA List showing a high consensual level based on a broader expert base. EURO-FORTA should help to spread the FORTA approach and improve geriatric pharmacotherapy internationally. PMID- 29335933 TI - Cost-Effectiveness Analysis of Bariatric Surgery for Morbid Obesity. AB - BACKGROUND: In the USA, three types of bariatric surgeries are widely performed, including laparoscopic sleeve gastrectomy (LSG), laparoscopic Roux-en-Y gastric bypass (LRYGB), and laparoscopic adjustable gastric banding (LAGB). However, few economic evaluations of bariatric surgery are published. There is also scarcity of studies focusing on the LSG alone. Therefore, this study is evaluating the cost-effectiveness of bariatric surgery using LRYGB, LAGB, and LSG as treatment for morbid obesity. METHODS: A microsimulation model was developed over a lifetime horizon to simulate weight change, health consequences, and costs of bariatric surgery for morbid obesity. US health care prospective was used. A model was propagated based on a report from the first report of the American College of Surgeons. Incremental cost-effectiveness ratios (ICERs) in terms of cost per quality-adjusted life-year (QALY) gained were used in the model. Model parameters were estimated from publicly available databases and published literature. RESULTS: LRYGB was cost-effective with higher QALYs (17.07) and cost ($138,632) than LSG (16.56 QALYs; $138,925), LAGB (16.10 QALYs; $135,923), and no surgery (15.17 QALYs; $128,284). Sensitivity analysis showed initial cost of surgery and weight regain assumption were very sensitive to the variation in overall model parameters. Across patient groups, LRYGB remained the optimal bariatric technique, except that with morbid obesity 1 (BMI 35-39.9 kg/m2) patients, LSG was the optimal choice. CONCLUSION: LRYGB is the optimal bariatric technique, being the most cost-effective compared to LSG, LAGB, and no surgery options for most subgroups. However, LSG was the most cost-effective choice when initial BMI ranged between 35 and 39.9 kg/m2. PMID- 29335934 TI - The Predictive Factors for Diabetic Remission in Chinese Patients with BMI > 30 kg/m2 and BMI < 30 kg/m2 Are Different. AB - INTRODUCTION: Roux-en-Y gastric bypass has been proven to be beneficial for patients with obesity and type 2 diabetes mellitus (T2DM). In less-obese patient (BMI 30-35 kg/m2), surgical treatment is indicated when medication fails to control the T2DM. Asian develops diabetes at a lower BMI. For lower-BMI patients, the rate of diabetes amelioration varies significantly with patients of higher BMI after surgical treatment. The factors that contribute to the post-operative diabetes response rate in lower-BMI patients have not been elucidated. METHODS: Between 2010 and 2014, a total of 144 patients who underwent gastric bypass for the treatment of T2DM were included for study. Patients were divided into two groups for subgroup analysis, namely BMI > 30 kg/m2 and BMI < 30 kg/m2. Factors affecting the remission rate were examined. RESULTS: Of the studied patients, the DM remission rate for the high-BMI group (BMI > 30 kg/m2) was 80% (n = 90) whereas for the lower BMI (BMI < 30 kg/m2) was 50% (n = 54), p < 0.001. For high BMI group, low HbA1c and high fasting C-peptide are predictive factors whereas for lower-BMI group, along with elevated C-peptide level, disease duration is the positive predictive factor for DM remission. CONCLUSION: Patients with BMI > 30 kg/m2 and those with BMI < 30 kg/m2 have distinct remission predicting factors. Low HbA1c is a predictor of remission in low-high-BMI patients while duration of diabetes is for high-low-BMI patients. C-peptide is a predictor of remission in both groups. Further large-scale studies are required to define the predictors of diabetes remission after gastric bypass in low- and high-BMI patients. PMID- 29335935 TI - ? PMID- 29335936 TI - ? PMID- 29335937 TI - ? PMID- 29335938 TI - [Diabetes and infection - a missing link really?] PMID- 29335939 TI - [E-cigarettes: in urgent cases an acceptable alternative]. PMID- 29335940 TI - [The human intestinal microbiome and why you have to think twice before prescribing antibiotics!] PMID- 29335941 TI - ? PMID- 29335942 TI - [Lipoprotein (a) - what to do?] PMID- 29335943 TI - [PCSK9 inhibitors: For which patients? For which indication? What to consider?] PMID- 29335944 TI - [Statin-associated muscle symptoms]. PMID- 29335945 TI - ? PMID- 29335946 TI - ? PMID- 29335947 TI - ? PMID- 29335948 TI - ? PMID- 29335949 TI - ? PMID- 29335951 TI - ? PMID- 29335950 TI - ? PMID- 29335952 TI - ? PMID- 29335953 TI - ? PMID- 29335954 TI - ? PMID- 29335955 TI - ? PMID- 29335956 TI - ? PMID- 29335957 TI - ? PMID- 29335958 TI - ? PMID- 29335959 TI - ? PMID- 29335960 TI - ? PMID- 29335961 TI - ? PMID- 29335962 TI - ? PMID- 29335964 TI - ? PMID- 29335963 TI - ? PMID- 29335965 TI - ? PMID- 29335966 TI - ? PMID- 29335967 TI - ? PMID- 29335968 TI - ? PMID- 29335969 TI - ? PMID- 29335970 TI - ? PMID- 29335972 TI - ? PMID- 29335971 TI - ? PMID- 29335973 TI - ? PMID- 29335974 TI - ? PMID- 29335975 TI - ? PMID- 29335976 TI - ? PMID- 29335977 TI - ? PMID- 29335978 TI - ? PMID- 29335980 TI - ? PMID- 29335982 TI - ? PMID- 29335981 TI - ? PMID- 29335983 TI - ? PMID- 29335985 TI - ? PMID- 29335984 TI - ? PMID- 29335986 TI - ? PMID- 29335987 TI - ? PMID- 29335989 TI - ? PMID- 29335990 TI - ? PMID- 29335988 TI - ? PMID- 29335992 TI - ? PMID- 29335993 TI - ? PMID- 29335991 TI - ? PMID- 29335995 TI - ? PMID- 29335994 TI - ? PMID- 29335996 TI - ? PMID- 29335997 TI - ? PMID- 29335998 TI - ? PMID- 29335999 TI - [Rheumatoid arthritis]. PMID- 29336000 TI - The Origin and Ecological Function of an Ion Inducing Anti-Predator Behavior in Lithobates Tadpoles. AB - In aquatic environments, chemical cues are believed to be associated with prey response to predation risk, yet few basic cue compositions are known despite the pronounced ecological and evolutionary significance of such cues. Previous work indicated that negatively-charged ions of m/z 501 are possibly a kairomone that induces anti-predator responses in amphibian tadpoles. However, work described here confirms that this specific ion species m/z 501.2886 is produced by injured tadpoles, exhibits increased spectral intensity with higher tadpole biomass, and is not produced by starved predators. These results indicate the anion is an alarm cue released from tadpoles. High resolution mass spectrometry (HR-MS) revealed a unique elemental composition for [M-H]-, m/z 501.2886, of C26H45O7S- which could not be determined in previous studies using low resolution instruments. Collision induced dissociation of m/z 501 ions formed product ions of m/z 97 and m/z 80, HSO4- and SO3-, respectively, showing the presence of sulfate. Green frog tadpoles, Lithobates clamitans, exposed to the m/z 501 anion or sodium dodecyl sulfate exhibited similar anti-predator responses, suggesting organic sulfate is a tadpole behavior modifier. PMID- 29336001 TI - Advances in the Study of the Middle Cranial Fossa through Cutting Edge Neuroimaging Techniques. AB - The objective of this paper is to present a morphometric study of the middle cranial fossa from the study of 87 patients using cutting edge multislice computed tomography scans (32 detectors) and Magnetic Resonance Imaging. The study presents a detailed anatomical-radiological and morphometric analysis of the middle cranial fossa as well as its neurovascular elements in normal conditions. The implications of this investigation in training and clinical contexts are discussed. PMID- 29336003 TI - Prevalence of pre-school children for overweight/obesity in Turkey. AB - BACKGROUND: Most of the studies and interventions are targeted to address undernutrition, but childhood obesity has become a silent killer among children. Developing countries, including Turkey, could recognize the importance of the issue now and have begun to discuss the necessity of studies on this subject. Therefore, this study aims to examine the prevalence of obesity among pre-school children in Turkey. METHODS: The data source of this study is the Turkey Demographic and Health Survey (TDHS)-2013. The TDHS-2013 was a sample study to gather information about the fertility levels and changes in them, infant and child mortality, family planning, and maternal and infant health at the national level. RESULTS: Overweight/obesity for height was 8.6% and 6.6% for age. Overweight/obesity problems are mostly observed in the West and are higher in urban areas. Overweight/obesity decreases with increasing age. There is a positive correlation between overweight/obesity and maternal educational level. As the household welfare level increases, overweight/obesity increases in pre school children. Female children are at higher risk of overweight/obesity than males. As birth order increases, overweight/obesity decreases. Children living in other regions have overweight/obesity problems more than the pre-school children living in the East. CONCLUSIONS: This study speculates that obesity appears to be a major problem among pre-school children in Turkey. Based on the findings, the current situation of overweight/obesity among pre-school children is so close to many developing and developed countries, whose obesity levels are a greater concern. This finding demonstrates that effective interventions of obesity should begin as early as infancy in Turkey, as it is a developing country. PMID- 29336002 TI - Body composition and circulating estradiol are the main bone density predictors in healthy young and middle-aged men. AB - PURPOSE: Current fracture risk assessment options in men call for improved evaluation strategies. Recent research directed towards non-classic bone mass determinants have often yielded scarce and conflicting results. We aimed at investigating the impact of novel potential bone mass regulators together with classic determinants of bone status in healthy young and middle-aged men. METHODS: Anthropometric measurements, all-site bone mineral density (BMD) and body composition parameters assessed by dual-energy X-ray absorptiometry and also serum concentrations of (1) the adipokines leptin and resistin, (2) vitamin D and parathormone (PTH), (3) sex hormone binding globulin (SHBG), total testosterone and estradiol (free testosterone was also calculated) and (4) C-terminal telopeptide of type I collagen (CTx) were obtained from 30 apparently healthy male volunteers aged 20-65 years enrolled in this cross-sectional study. RESULTS: Only lean mass (LM) and total estradiol independently predicted BMD in men in multiple regression analysis, together explaining 49% (p <= 0.001) of whole-body BMD variance. Hierarchical regression analysis with whole-body BMD as outcome variable demonstrated that the body mass index (BMI) beta coefficient became nonsignificant when LM was added to the model. Adipokines, fat parameters, testosterone (total and free), SHBG, PTH and vitamin D were not independently associated with BMD or CTx. CONCLUSIONS: The present study shows that LM and sex hormones-namely estradiol-are the main determinants of bone mass in young and middle-aged men. The effects of BMI upon BMD seem to be largely mediated by LM. Lifestyle interventions should focus on preserving LM in men for improved bone outcomes. PMID- 29336004 TI - Point-of-Care Urine Ethyl Glucuronide Testing to Detect Alcohol Use Among HIV Hepatitis B Virus Coinfected Adults in Zambia. AB - In an HIV-hepatitis B virus (HIV-HBV) coinfection cohort in Zambia, we piloted a qualitative point-of-care (POC) test for urine Ethyl glucuronide (uEtG), assessed concordance between uEtG and alcohol use disorders identification test consumption (AUDIT-C), and identified epidemiological factors associated with underreporting (defined as uEtG-positivity with last reported drink > 7 days prior). Among 211 participants (40.8% women), there were 44 (20.8%) lifetime abstainers, 32 (15.2%) former drinkers, and 135 (64.0%) current drinkers, including 106 (50.2%) with unhealthy drinking per AUDIT-C. Eighty-seven (41.2%) were uEtG-positive including 64 of 65 (98.5%) who drank <= 3 days prior and 17 of 134 (12.7%) underreported, all of whom admitted to recent drinking when results were discussed. uEtG was moderately concordant with AUDIT-C. Past drinking (versus lifetime abstinence) and longer time on antiretrovirals (>= 12 months) were associated with underreporting. These data support further use of POC alcohol biomarkers in HIV and hepatitis research and clinical settings. PMID- 29336006 TI - The place of frailty and vulnerability in the surgical risk assessment: should we move from complexity to simplicity? AB - Due to aging of the world population, older patients accessing health services are becoming continuously more frequent. This has increased the interest in assessing frailty and vulnerability in all specialties and general medicine. Although the term frailty has been recognized for over 30 years, there is not yet a universally recognized definition, and different care providers assess frailty and vulnerability with dissimilar tools, from very complex to very simple validated scales. Being treated with respect and dignity at the right time and place is the key message, as well as after undergoing a global evaluation both in urgency/emergency and in programmed surgery for all older surgical patients. Filling the gap will improve the results of any clinical intervention, both medical and surgical. Anesthesiologists, surgeons, hospitalists, and any member of the team of care providers must be trained into geriatric syndromes. PMID- 29336005 TI - Degranulation inhibitors from the arils of Myristica fragrans in antigen stimulated rat basophilic leukemia cells. AB - A methanol extract of mace, the aril of Myristica fragrans (Myristicaceae), was found to inhibit the release of beta-hexosaminidase, a marker of antigen-IgE stimulated degranulation in rat basophilic leukemia cells (RBL-2H3, IC50 = 45.7 MUg/ml). From the extract, three new 8-O-4' type neolignans, maceneolignans I-K (1-3), were isolated, and the stereostructures of 1-3 were elucidated based on spectroscopic and chemical evidence. Among the isolates, maceneolignans A (5), D (6), and H (8), (-)-(8R)-?8'-4-hydroxy-3,3',5'-trimethoxy-8-O-4'-neolignan (13), (-)-(8R)-?8'-3,4,5,3',5'-pentamethoxy-8-O-4'-neolignan (14), (-)-erythro-(7R,8S) ?8'-7-acetoxy-3,4-methylenedioxy-3',5'-dimethoxy-8-O-4'-neolignan (17), (+) licarin A (20), nectandrin B (24), verrucosin (25), and malabaricone C (29) were investigated as possible degranulation inhibitors (IC50 = 20.7-63.7 MUM). These inhibitory activities were more potent than those of the antiallergic agents tranilast (282 MUM) and ketotifen fumalate (158 MUM). Compounds 5, 25, and 29 also inhibited antigen-stimulated tumor necrosis factor-alpha production (IC50 = 39.5-51.2 MUM), an important process in the late phase of type I allergic reactions. PMID- 29336007 TI - Vulvo-vaginal rejuvenation: Fact or fiction? Fractional carbon dioxide laser for genitourinary syndrome of menopause. PMID- 29336008 TI - Dermatology training across the globe. PMID- 29336009 TI - Gefitinib for advanced non-small cell lung cancer. AB - BACKGROUND: The role of gefitinib for the treatment of advanced non-small cell lung cancer (NSCLC) is evolving. We undertook a systematic review to evaluate the available evidence from all randomised trials. OBJECTIVES: To determine the effectiveness and safety of gefitinib as first-line, second-line or maintenance treatment for advanced NSCLC. SEARCH METHODS: We performed searches in CENTRAL, MEDLINE and Embase from inception to 17 February 2017. We handsearched relevant conference proceedings, clinical trial registries and references lists of retrieved articles. SELECTION CRITERIA: We included trials assessing gefitinib, alone or in combination with other treatment, compared to placebo or other treatments in the first- or successive-line treatment of patients with NSCLC, excluding compassionate use. DATA COLLECTION AND ANALYSIS: We used the standard Cochrane methodology. Two authors independently assessed the search results to select those with sound methodological quality. We carried out all analyses on an intention-to-treat basis. We recorded the following outcome data: overall survival, progression-free survival, toxicity, tumour response and quality of life. We also collected data for the following subgroups: Asian ethnicity and positive epidermal growth factor receptor (EGFR) mutation. MAIN RESULTS: We included 35 eligible randomised controlled trials (RCTs), which examined 12,089 patients.General populationGefitinib did not statistically improve overall survival when compared with placebo or chemotherapy in either first- or second line settings. Second-line gefitinib prolonged time to treatment failure (TTF) (hazard ratio (HR) 0.82, 95% confidence interval (CI) 0.75 to 0.90, P < 0.0001) when compared with placebo. Maintenance gefitinib improved progression-free survival (HR 0.70, 95% CI 0.53 to 0.91, P = 0.007) after first-line therapy.Studies in patients of Asian ethnicity or that conducted subgroup analysesSecond-line gefitinib prolonged overall survival over placebo (HR 0.66, 95% CI 0.48 to 0.91, P = 0.01). In the first-line setting, progression-free survival was improved with gefitinib over chemotherapy alone (HR 0.65, 95% CI 0.43 to 0.98, P = 0.04, moderate quality of evidence). Gefitinib given in combination with a chemotherapy regimen improved progression-free survival versus either gefitinib alone or chemotherapy alone (HR 0.69, 95% CI 0.49 to 0.96, P = 0.03; HR 0.69, 95% CI 0.62 to 0.77, P < 0.00001, respectively). In the second line setting, progression-free survival was superior in patients given gefitinib over placebo or chemotherapy (HR 0.69, 95% CI 0.52 to 0.91, P = 0.009; HR 0.71, 95% CI 0.57 to 0.88, P = 0.002; moderate quality of evidence, respectively). Combining gefitinib with chemotherapy in the second-line setting was superior to gefitinib alone (HR 0.65, 95% CI 0.43 to 0.97, P = 0.04). As maintenance therapy, gefitinib improved progression-free survival when compared with placebo (HR 0.42, 95% CI 0.33 to 0.54, P < 0.00001).Patients with EGFR mutation-positive tumoursStudies in patients with EGFR mutation-positive tumours showed an improvement in progression-free survival in favour of gefitinib over first-line and second-line chemotherapy (HR 0.47, 95% CI 0.36 to 0.61, P < 0.00001; HR 0.24, 95% CI 0.12 to 0.47, P < 0.0001, respectively). Gefitinib as maintenance therapy following chemotherapy improved overall and progression-free survival (HR 0.39, 95% CI 0.15 to 0.98, P = 0.05; HR 0.17, 95% CI 0.07 to 0.41, P < 0.0001, respectively) in one phase III study when compared to placebo.Toxicities from gefitinib included skin rash, diarrhoea and liver transaminase derangements. Toxicities from chemotherapy included anaemia, neutropenia and neurotoxicity.In terms of quality of life, gefitinib improved Functional Assessment of Cancer Therapy-Lung (FACT-L) (standardised mean difference (SMD) 10.50, 95% CI 9.55 to 11.45, P < 0.000001), lung cancer subscale (SMD 3.63, 95% CI 3.08 to 4.19, P < 0.00001) and Trial Outcome Index (SMD 9.87, 95% CI 1.26 to 18.48, P < 0.00001) scores when compared with chemotherapy. AUTHORS' CONCLUSIONS: This systematic review shows that gefitinib, when compared with standard first- or second-line chemotherapy or maintenance therapy, probably has a beneficial effect on progression-free survival and quality of life in selected patient populations, particularly those with tumours bearing sensitising EGFR mutations.Patients with EGFR mutations lived longer when given maintenance gefitinib than those given placebo.One study conducted subgroup analysis and showed that gefitinib improved overall survival over placebo in the second-line setting in patients of Asian ethnicity. All other studies did not detect any benefit on overall survival. The data analysed in this review were very heterogenous. We were limited in the amount of data that could be pooled, largely due to variations in study design. The risk of bias in most studies was moderate, with some studies not adequately addressing potential selection, attrition and reporting bias. This heterogeneity may have an impact on the applicability of the resultsCombining gefitinib with chemotherapy appears to be superior in improving progression-free survival to either gefitinib or chemotherapy alone, however further data and phase III studies in these settings are required.Gefitinib has a favourable toxicity profile when compared with current chemotherapy regimens. Although there is no improvement in overall survival, gefitinib compares favourably with cytotoxic chemotherapy in patients with EGFR mutations with a prolongation of progression free survival and a lesser side effect profile. PMID- 29336010 TI - The unique role of executive function skills in predicting Hong Kong kindergarteners' reading comprehension. AB - BACKGROUND: Word reading and linguistic comprehension skills are two crucial components in reading comprehension, according to the Simple View of Reading (SVR). Some researchers have posited that a third component should be involved in reading and understanding texts, namely executive function (EF) skills. AIM: This study was novel in two ways. Not only did we tested EF skills as a predictor of reading comprehension in a non-alphabetic language (i.e., Chinese) to extend the theoretical model of SVR, we also examined reading comprehension further in kindergarten children (age 5) in Hong Kong, in the attempt to reveal possible early precursors of reading comprehension. SAMPLE(S): A group of 170 K3 kindergarteners was recruited in Hong Kong. METHODS: Children's word reading was assessed. Their linguistic comprehension was assessed with phonological awareness, verbal short-term memory, and vocabulary knowledge. Using a structured observation task, Head-Toes-Knees-Shoulders (HTKS), we measured their composite scores for EF skills. RESULTS: Head-Toes-Knees-Shoulders performance predicted unique variance in children's Chinese reading comprehension concurrently beyond word reading and a set of linguistic comprehension skills. CONCLUSIONS: The results highlight the important role of EF skills in beginning readers' reading comprehension. PMID- 29336011 TI - Decreased retinal sensitivity in depressive disorder: a controlled study. AB - OBJECTIVE: To compare pupil responses in depressed patients with a seasonal pattern, depressed patients without a seasonal pattern and healthy controls as a function of daylight hours on the testing day. METHOD: Patients suffering from a major depressive episode were included in wintertime. The pupil light reflex was measured at inclusion and in the following summer using a binocular pupillometer. A protocol of low (1 lux) and high (400 lux) intensity red and blue lights was used to assess rod, cone and melanopsin-containing intrinsic photosensitive retinal ganglion cell input to the pupil reflex. RESULTS: The mean group pupil responses associated with a melanopsin-mediated sustained pupil response at 400 lux blue light were significantly reduced in the depressed subjects (N = 39) as compared to the healthy controls (N = 24) (P = 0.023). Across all groups, a reduction in number of daylight hours was significantly associated with a reduction in sustained pupil response (P = 0.007). All groups showed an equal effect of daylight hours on the melanopsin-mediated sustained pupil response. CONCLUSION: The melanopsin-mediated sustained pupil contraction to offset of high intensity blue light is reduced in depressed patients. These results further emphasize the interaction of light exposure with depression. PMID- 29336012 TI - Predictors and consequences of health anxiety symptoms: a novel twin modeling study. AB - OBJECTIVE: The question of how to best conceptualize health anxiety (HA) from a diagnostic and etiological perspective remains debated. The aim was to examine the relationship between HA and the symptoms of anxiety and obsessive-compulsive related disorders in a normative twin population. METHOD: Four hundred and ninety six monozygotic adult twin pairs from the Australian Twin Registry participated in the study (age, 34.4 +/- 7.72 years; 59% females). Validated scales were used to assess each domain. We applied a twin regression methodology-ICE FALCON-to determine whether there was evidence consistent with 'causal' relationships between HA and other symptoms by fitting and comparing model estimates. RESULTS: Estimates were consistent with higher levels of obsessing ('unwanted thoughts') (P = 0.008), social anxiety (P = 0.03), and body dysmorphic symptoms (P = 0.008) causing higher levels of HA symptoms, and with higher levels of HA symptoms causing higher levels of physical/somatic anxiety symptoms (P = 0.001). CONCLUSION: Obsessional thoughts, body dysmorphic concerns, and social anxiety symptoms may have a causal influence on HA. To report physical/somatic anxiety appears to be a consequence of the underlying presence of HA-related fears. Should our results be confirmed by longitudinal studies, the evaluation and treatment of HA may benefit from the consideration of these identified risk factors. PMID- 29336013 TI - Systematic review of atopic dermatitis disease definition in studies using routinely collected health data. AB - BACKGROUND: Routinely collected electronic health data obtained for administrative and clinical purposes are increasingly used to study atopic dermatitis (AD). Methods for identifying AD patients in routinely collected electronic health data differ, and it is unknown how this might affect study results. OBJECTIVES: To evaluate how patients with AD have been identified in studies using routinely collected electronic health data, to determine whether these methods were validated and to estimate how the method for identifying patients with AD affected variability in prevalence estimates. METHODS: We systematically searched PubMed, Embase and Web of Science for studies using routinely collected electronic health data that reported on AD as a primary outcome. Studies of localized AD and other types of dermatitis were excluded. The protocol for this review was registered in PROSPERO (CRD42016037968). RESULTS: In total, 59 studies met eligibility criteria. Medical diagnosis codes for inclusion and exclusion, number of occasions of a code, type of provider associated with a code and prescription data were used to identify patients with AD. Only two studies described validation of their methods and no study reported on disease severity. Prevalence estimates ranged from 0.18% to 38.33% (median 4.91%) and up to threefold variation in prevalence was introduced by differences in the method for identifying patients with AD. CONCLUSIONS: This systematic review highlights the need for clear reporting of methods for identifying patients with AD in routinely collected electronic health data to allow for meaningful interpretation and comparison of results. PMID- 29336014 TI - Response to: Yazdani A. Surgery or in vitro fertilisation: The simplicity of this question belies its complexity. When all you have is a hammer, everything looks like a nail. AB - This is perhaps the most apt mantra of IVF (in vitro fertilisation) as a treatment in Australasia in this day and age. It is also important to note the truth in the identification of IVF being low skill-based, largely independent of the practitioner, but more importantly costly, and with few exceptions, only available in the private sector. Such revelations really require a rethink of the entire reproductive endocrinology and infertility (CREI) subspecialty. In fact, if there is only one solution to all fertility problems - that of the 'effective IVF procedure' - why not do away completely with the clinician and simply have nurse practitioners who oversee the identified issue of an individual or couple wanting a pregnancy? This in conjunction with the outstanding scientific advances that led to the initiation and promulgation of IVF really would reduce costs by cutting out the unnecessary clinician middle-person who is unimportant in the equation. It may be that such cost reduction, the disbandment of the irrelevant subspecialty and protocol-driven, high-quality fertility checklists would allow this to be a publically accessible service for all, not just those who can afford it. PMID- 29336015 TI - A Metatheory for Cognitive Development (or "Piaget is Dead" Revisited). AB - In 1997, I argued that with the loss of Piaget's theory as an overarching guide, cognitive development had become disjointed and a new metatheory was needed to unify the field. I suggested developmental biology, particularly evolutionary theory, as a candidate. Here, I examine the increasing emphasis of biology in cognitive development research over the past 2 decades. I describe briefly the emergence of evolutionary developmental psychology and examine areas in which proximal and distal biological causation have been particularly influential. I argue that developmental biology will continue to increasingly influence research and theory in cognitive development and that evolutionary theory is well on its way to becoming a metatheory, not just for cognitive development, but for developmental psychology generally. PMID- 29336016 TI - Could conjunctivitis in patients with atopic dermatitis treated with dupilumab be caused by colonization with Demodex and increased interleukin-17 levels?: reply from the authors. PMID- 29336018 TI - The Legacy of Early Abuse and Neglect for Social and Academic Competence From Childhood to Adulthood. AB - This study used data from the Minnesota Longitudinal Study of Risk and Adaptation (N = 267) to investigate whether abuse and neglect experiences during the first 5 years of life have fading or enduring consequences for social and academic competence over the next 3 decades of life. Experiencing early abuse and neglect was consistently associated with more interpersonal problems and lower academic achievement from childhood through adulthood (32-34 years). The predictive significance of early abuse and neglect was not attributable to the stability of developmental competence over time, nor to abuse and neglect occurring later in childhood. Early abuse and neglect had enduring associations with social (but not academic) competence after controlling for potential demographic confounds and early sensitive caregiving. PMID- 29336017 TI - Long-term surveillance of SUDEP in drug-resistant epilepsy patients treated with VNS therapy. AB - OBJECTIVE: Limited data are available regarding the evolution over time of the rate of sudden unexpected death in epilepsy patients (SUDEP) in drug-resistant epilepsy. The objective is to analyze a database of 40 443 patients with epilepsy implanted with vagus nerve stimulation (VNS) therapy in the United States (from 1988 to 2012) and assess whether SUDEP rates decrease during the postimplantation follow-up period. METHODS: Patient vital status was ascertained using the Centers for Disease Control and Prevention's National Death Index (NDI). An expert panel adjudicated classification of cause of deaths as SUDEP based on NDI data and available narrative descriptions of deaths. We tested the hypothesis that SUDEP rates decrease with time using the Mann-Kendall nonparametric trend test and by comparing SUDEP rates of the first 2 years of follow-up (years 1-2) to longer follow-up (years 3-10). RESULTS: Our cohort included 277 661 person-years of follow-up and 3689 deaths, including 632 SUDEP. Primary analysis demonstrated a significant decrease in age-adjusted SUDEP rate during follow-up (S = -27 P = .008), with rates of 2.47/1000 for years 1-2 and 1.68/1000 for years 3-10 (rate ratio 0.68; 95% confidence interval [CI] 0.53-0.87; P = .002). Sensitivity analyses confirm these findings. SIGNIFICANCE: Our data suggest that SUDEP risk significantly decreases during long-term follow-up of patients with refractory epilepsy receiving VNS Therapy. This finding might reflect several factors, including the natural long-term dynamic of SUDEP rate, attrition, and the impact of VNS Therapy. The role of each of these factors cannot be confirmed due to the limitations of the study. PMID- 29336019 TI - Computerized planimetry to assess clinical responsiveness in a phase II randomized trial of topical R333 for discoid lupus erythematosus. AB - BACKGROUND: R333 is a topical janus kinase and spleen tyrosine kinase inhibitor being evaluated for discoid lupus erythematosus (DLE) treatment. There is no validated measure to assess the area of active DLE lesions. OBJECTIVES: To evaluate R333 efficacy and assess a technique to measure responsiveness. METHODS: Fifty-four patients with DLE were randomized in a double-blind design to R333 or placebo. Primary end point was the proportion of patients achieving >= 50% decrease in erythema and scale based on lesional Cutaneous Lupus Erythematosus Disease Area and Severity IndexTM for all treated lesions at week 4. Two dimensional (2D) area measurements for each lesion were recorded at baseline and weeks 1-6. Eighty-eight photographs (44 pre- and 44 post-treatment) were obtained from the trial and change in size of active areas was analysed by computerized planimetry and physician-assessed area change (PAAC). RESULTS: Thirty-six patients were randomized to R333 and 18 patients were randomized to placebo. Primary end point was not achieved. There was a strong association between lesion activity and physician global assessment (P < 0.001). Photos of 42 patients assessed by computerized planimetry demonstrated excellent inter- and intra-rater reliability. Area change by computerized planimetry showed a strong correlation with PAAC (Spearman r = 0.72). Area change by 2D measurements showed a weak correlation with PAAC (Spearman r = 0.29). CONCLUSIONS: Four weeks of R333 treatment did not result in significant improvement in lesion activity. Lesion activity and area change using computerized planimetry are better determinants of responsiveness than area change using 2D measurements. PMID- 29336021 TI - Evolutionary Developmental Psychology: 2017 Redux. PMID- 29336020 TI - Return to driving after a diagnosis of epilepsy: A prospective registry study. AB - OBJECTIVE: To determine the frequency and predictors of return to driving within 1 year after a diagnosis of epilepsy. METHODS: SEISMIC (the Sydney Epilepsy Incidence Study to Measure Illness Consequences) was a prospective, multicenter, community-wide study of people of all ages with newly diagnosed epilepsy in Sydney, Australia. Demographic, socioeconomic, and clinical characteristics and driving status were obtained as soon as possible after baseline registration with a diagnosis of epilepsy. Multivariate logistic regression was used to determine predictors of return to driving at 12-month follow-up. RESULTS: Among 181 (76%) adult participants (>=18 years old) who reported driving before an epilepsy diagnosis, 152 provided information on driving at 12 months, of whom 118 (78%) had returned to driving. Driving for reasons of getting to work or place of education (odds ratio [OR] = 4.70, 95% confidence intervals [CI] = 1.87-11.86), no seizure recurrence (OR = 5.15, 95% CI = 2.07-12.82), and being on no or a single antiepileptic drug (OR = 4.54, 95% CI = 1.45-14.22) were associated with return to driving (C statistic = 0.79). More than half of participants with recurrent seizures were driving at follow-up. SIGNIFICANCE: Early return to driving after a diagnosis of epilepsy is related to work/social imperatives and control of seizures, but many people with recurrent seizures continue to drive. Further efforts are required to implement driving restriction policies and to provide transport options for people with epilepsy. PMID- 29336022 TI - Nonspecific diffuse alopecia as a single manifestation of syphilis infection: clinical and trichoscopic features. PMID- 29336023 TI - Bridging Evolutionary Biology and Developmental Psychology: Toward An Enduring Theoretical Infrastructure. AB - Bjorklund synthesizes promising research directions in developmental psychology using an evolutionary framework. In general terms, we agree with Bjorklund: Evolutionary theory has the potential to serve as a metatheory for developmental psychology. However, as currently used in psychology, evolutionary theory is far from reaching this potential. In evolutionary biology, formal mathematical models are the norm. In developmental psychology, verbal models are the norm. In order to reach its potential, evolutionary developmental psychology needs to embrace formal modeling. PMID- 29336025 TI - How Children Invented Humanity. AB - I use the commentaries of Legare, Clegg, and Wen and of Frankenhuis and Tiokhin as jumping-off points to discuss an issue hinted at both in my essay and their commentaries: How a developmental perspective can help us achieve a better understanding of evolution. I examine briefly how neoteny may have contributed to human morphology; how developmental plasticity in great apes, and presumably our common ancestor with them, may have led the way to advances in social cognition; and how the "invention" of childhood contributed to unique human cognitive abilities. I conclude by acknowledging that not all developmentalists have adopted an evolutionary perspective, but that we are approaching a time when an evolutionary perspective will be implicit in the thinking of all psychologists. PMID- 29336024 TI - Facility and State Variation in Hip Fracture in U.S. Nursing Home Residents. AB - OBJECTIVES: To quantify the variation in hip fracture incidence across U.S. nursing home (NH) facilities and states and examine how hip fracture incidence varies according to facility- and state-level characteristics. DESIGN: Retrospective cohort using linked national Minimum Data Set assessments; Online Survey, Certification and Reporting records; and Medicare claims. SETTING: U.S. NHs with 100 or more beds. PARTICIPANTS: Long-stay NH residents between May 1, 2007, and April 30, 2008, from 1,481 facilities and 46 U.S. states (N = 201,892). MEASUREMENTS: Incident hip fractures were ascertained using Medicare Part A diagnostic codes. Each resident was followed for up to 2 years. RESULTS: The mean adjusted incidence rate of hip fractures for all facilities was 3.13 (95% confidence interval (CI) = 3.01-3.26) per 100 person-years (range 1.20, 95% CI = 1.15-1.26 to 6.40, 95% CI = 6.07-6.77). Facilities with the highest rates of hip fracture had greater percentages of residents taking psychoactive medications (top tertile 27.2%, bottom tertile 24.8%), and fewer nursing (top tertile 3.43, bottom tertile 3.53) and direct care (top tertile 3.22, bottom tertile 3.29) hours per day per resident. The combination of state and facility characteristics explained 6.7% of the variation in hip fracture, and resident characteristics explained 7.6%. CONCLUSION: Much of the variation in hip fracture incidence remained unexplained, although these findings indicate that potentially modifiable state and facility characteristics such as psychoactive drug prescribing and minimum staffing requirements could be addressed to help reduce the rate of hip fracture in U.S. NHs. PMID- 29336026 TI - Youth's Conceptions of Adolescence Predict Longitudinal Changes in Prefrontal Cortex Activation and Risk Taking During Adolescence. AB - The development of cognitive control during adolescence is paralleled by changes in the function of the lateral prefrontal cortex (PFC). Using a three-wave longitudinal neuroimaging design (N = 22, Mage = 13.08 years at Wave 1), this study examined if youth's stereotypes about teens modulate changes in their neural activation during cognitive control. Participants holding stereotypes of teens as irresponsible in the family context (i.e., ignoring family obligations) in middle school showed increases in bilateral ventrolateral PFC activation during cognitive control over the transition to high school, which was associated with increases in risk taking. These findings provide preliminary evidence that youth's conceptions of adolescence play a role in neural plasticity over this phase of development. PMID- 29336027 TI - Evaluating the validity of subclassifying warfarin-associated nonuremic calciphylaxis: a retrospective cohort study. AB - BACKGROUND: Calciphylaxis is a devastating multifactorial disorder of the subcutaneous fat that is known to be associated with hypercoagulability. Recent literature has proposed subclassifying patients with calciphylaxis as having warfarin-associated or warfarin-unassociated disease. AIM: We aimed to determine whether patients with warfarin-associated calciphylaxis differ clinically from patients with warfarin-unassociated calciphylaxis. MATERIALS AND METHODS: We performed a subgroup analysis of patients with nonuremic calciphylaxis from a previously studied cohort and compared clinical and outcomes features of patients who were taking warfarin at the time of disease onset to those of patients who were not. RESULTS: Nineteen patients with nonuremic calciphylaxis were identified, including 10 (53%) who had been on warfarin at the time of disease onset and 9 (47%) who had not. Of all clinical and outcomes parameters tested, no significant differences were detected between the two groups. DISCUSSION AND CONCLUSIONS: Though this study is limited by its retrospective nature and the relatively small number of patients studied, available data do not support subclassifying patients with nonuremic calciphylaxis as having warfarin associated or warfarin-unassociated disease. Rather, the body of literature would suggest that identification and correction of underlying disorders of hypercoagulability should be prioritized. PMID- 29336028 TI - The role of the head in configural body processing: Behavioural and electrophysiological evidence from the inversion and scrambling effect. AB - The present study aimed to further explore the role of the head for configural body processing by comparing complete bodies with headless bodies and faceless heads (Experiment 1). A second aim was to further explore the role of the eye region in configural face processing (Experiment 2). Due to that, we conducted a second experiment with complete faces, eyeless faces, and eyes. In addition, we used two effects to manipulate configural processing: the effect of stimulus inversion and scrambling. The current data clearly show an inversion effect for intact bodies presented with head and faces including the eye region. Thus, the head and the eye region seem to be central for configural processes that are manipulated by the effect of stimulus inversion. Furthermore, the behavioural and electrophysiological body inversion effect depends on the intact configuration of bodies and is associated with the N170 as the face inversion effect depends on the intact face configuration. Hence, configural body processing depends not only on the presence of the head but rather on a complete representation of human bodies that includes the body and the head. Furthermore, configural face processing relies on intact and complete face representations that include faces and eyes. PMID- 29336029 TI - Sudden unexpected death in epilepsy in patients treated with brain-responsive neurostimulation. AB - OBJECTIVE: To study the incidence and clinical features of sudden unexpected death in epilepsy (SUDEP) in patients treated with direct brain-responsive stimulation with the RNS System. METHODS: All deaths in patients treated in clinical trials (N = 256) or following U.S. Food and Drug Administration (FDA) approval (N = 451) through May 5, 2016, were adjudicated for SUDEP. RESULTS: There were 14 deaths among 707 patients (2208 postimplantation years), including 2 possible, 1 probable, and 4 definite SUDEP events. The rate of probable or definite SUDEP was 2.0/1000 (95% confidence interval [CI] 0.7-5.2) over 2036 patient stimulation years and 2.3/1000 (95% CI 0.9-5.4) over 2208 patient implant years. Stored electrocorticograms around the time of death were available for 4 patients with probable/definite SUDEP and revealed the following: frequent epileptiform activity ending abruptly (n = 2), no epileptiform activity or seizures (n = 1), and an electrographic and witnessed seizure with cessation of postictal electrocorticography (ECoG) activity associated with apnea and pulselessness (n = 1). SIGNIFICANCE: The SUDEP rate of 2.0/1000 patient stimulation years among patients treated with the RNS System is favorable relative to treatment-resistant epilepsy patients randomized to the placebo arm of add-on drug studies or with seizures after resective surgery. Our findings support that treatments that reduce seizures reduce SUDEP risk and that not all SUDEPs follow seizures. PMID- 29336030 TI - The aryl hydrocarbon receptor modulates the function of human CD56bright NK cells. AB - Human natural killer (NK) cells are divided into two subsets: CD56bright and CD56dim NK cells, which differ in maturation, function and distribution. Mechanisms regulating NK cell functions are not completely understood. Aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor, that binds to a variety of endogenous and exogenous molecules, and that has recently been shown to modulate the function and differentiation of immune cells. Here, we studied the expression of AhR and its involvement in the regulation of NK cell functions. We found that AhR mRNA is highly expressed in peripheral CD56bright NK cells and that AhR mRNA expression gradually decreases as NK cells display a more mature phenotype. CD56bright NK cells were highly sensitive to AhR ligands. Specifically, AhR ligands modulated their activation and their expression of NK cell receptors, as well as cytokine secretion which is the major function of these cells. As CD56bright NK cells are highly enriched in tissues and in tumors, our observations point to a possible effect of local AhR ligands in the regulation of the function of CD56bright tissue-resident or intratumoral NK cells. PMID- 29336032 TI - My mind, your mind, and God's mind: How children and adults conceive of different agents' moral beliefs. AB - Extending prior research on belief attributions, we investigated the extent to which 5- to 8-year-olds and adults distinguish their beliefs and other humans' beliefs from God's beliefs. In Study 1, children reported that all agents held the same beliefs, whereas adults drew greater distinctions among agents. For example, adults reported that God was less likely than humans to view behaviors as morally acceptable. Study 2 additionally investigated attributions of beliefs about controversial behaviours (e.g., telling prosocial lies) and belief stability. These data replicated the main results from Study 1 and additionally revealed that adults (but not children) reported that God was less likely than any other agent to think that controversial behaviours were morally acceptable. Furthermore, across ages, participants reported that another person's beliefs were more likely to change than either God's beliefs or their own beliefs. We discuss implications for theories regarding belief attributions and for religious and moral cognition. Statement of contribution What is already known on this subject Preschoolers can attribute different beliefs to different humans Children and adults attribute greater cognitive capacities to God than to humans What the present study adds Children attribute the same moral beliefs to God and humans Adults distinguish among different agents' minds when attributing moral beliefs Developmental differences are less pronounced in judgements of belief stability. PMID- 29336031 TI - Experiences of case management with chronic illnesses: a qualitative systematic review. AB - AIM: This qualitative systematic review aimed to identify and synthesize recent qualitative studies to improve understanding of the experiences and perceptions of case management interventions that individuals with chronic illnesses and their caregivers have. BACKGROUND/INTRODUCTION: Case management has been shown to be effective at improving quality of care and lowering costs for individuals with chronic illnesses. However, no qualitative review has been synthesized with recent qualitative studies about case management experiences by individual with chronic illnesses. METHODS: This qualitative systematic review uses a thematic synthesis method to review 10 qualitative studies published within the last 10 years, from 2007 to 2016, thereby identifying and discussing the understandings that individuals with chronic illnesses and their caregivers have about case management. RESULTS: From this synthesis, three themes were identified as facilitators of case management (access to healthcare resources, health status supports and emotional aid) and two themes were identified as barriers to it (low information about case management and time constraints). CONCLUSIONS: This is the first qualitative systematic review of the perceptions and experiences that individuals with chronic illnesses and their caregivers have about case management. The facilitators of case management can be employed to inform patients about the benefits of case management and to improve population health. IMPLICATIONS FOR NURSING AND HEALTH POLICY: The findings about barriers to case management can be used to reform case management for populations with chronic illnesses. These factors should be considered by nursing researchers and healthcare policymakers when implementing case management. PMID- 29336033 TI - H2 O2 mediates nitrate-induced iron chlorosis by regulating iron homeostasis in rice. AB - The uptake of nitrate by plant roots causes a pH increment in rhizosphere and leads to iron (Fe) deficiency in rice. However, little is known about the mechanism how the nitrate uptake-induced high rhizosphere pH causes Fe deficiency. Here, we found that rice showed severe leaf chlorosis and large amounts of Fe plaque were aggregated on the root surface and intercellular space outside the exodermis in a form of ferrihydrite under alkaline conditions. In this case, there was significantly decreased Fe concentration in shoots, and the Fe deficiency responsive genes were strongly induced in the roots. The high rhizosphere pH induced excess hydrogen peroxide (H2 O2 ) production in the epidermis due to the increasing expression of NADPH-oxidase respiratory burst oxidase homolog 1, which enhanced root oxidation ability and improved the Fe plaque formation in rhizosphere. Further, the concentrated H2 O2 regulated the phenylpropanoid metabolism with increased lignin biosynthesis and decreased phenolics secretion, which blocked apoplast Fe mobilization efficiency. These factors coordinately repressed the Fe utilization in rhizosphere and led to Fe deficiency in rice under high pH. In conclusion, our results demonstrate that nitrate uptake-induced rhizosphere alkalization led to Fe deficiency in rice, through H2 O2 -dependent manners of root oxidation ability and phenylpropanoid metabolism. PMID- 29336035 TI - Jim's View: "Some Thoughts for Young Scientists". PMID- 29336034 TI - Quantitative evaluation of collagen and elastic fibers after intense pulsed light treatment of mouse skin. AB - BACKGROUND AND OBJECTIVE: The aging of human skin includes intrinsic aging and photo-aging, which are characterized by a decrease in collagen and the deposition of abnormal elastic fibers. Intense pulsed light (IPL) sources are widely used in medicine to treat various cosmetic problems, including photo-damaged skin. Few studies have examined the microscopic changes produced by IPL. The objective of this study was to quantitatively evaluate the effects of IPL on collagen and elastic fibers in mice. MATERIALS AND METHODS: Forty female BALB/c mice were divided into four subgroups. Group 1 was the control group (n = 10), and groups 2, 3, and 4 were treatment groups (n = 10 in each group). Group 2 received one treatment, group 3 received two treatments, and group 4 received three treatments every 2 weeks. Skin tissue was obtained from irradiated areas 24 hours after the last treatment in each mouse. Collagen fibers were identified using the picrosirius red method. Elastic fibers were marked by Weigert-oxone stain. All samples were analyzed and quantified by a light microscope using analyzer system images. RESULTS: Group 4, which received three IPL treatments, showed significant quantitative increases in both collagen fibers (P < 0.05) and elastic fibers (P < 0.01). Collagen fibers demonstrated a better parallel distribution in relation to the epidermis. CONCLUSION: IPL treatment significantly increased the number of collagen and elastic fibers within the dermis and improved the parallel distribution of collagen fibers in relation to the epidermis. These results were evident after three IPL treatments. Lasers Surg. Med. (c) 2018 Wiley Periodicals, Inc. PMID- 29336037 TI - Developmental control of hypoxia during bud burst in grapevine. AB - Dormant or quiescent buds of woody perennials are often dense and in the case of grapevine (Vitis vinifera L.) have a low tissue oxygen status. The precise timing of the decision to resume growth is difficult to predict, but once committed, the increase in tissue oxygen status is rapid and developmentally regulated. Here, we show that more than a third of the grapevine homologues of widely conserved hypoxia-responsive genes and nearly a fifth of all grapevine genes possessing a plant hypoxia-responsive promoter element were differentially regulated during bud burst, in apparent harmony with resumption of meristem identity and cell cycle gene regulation. We then investigated the molecular and biochemical properties of the grapevine ERF-VII homologues, which in other species are oxygen labile and function in transcriptional regulation of hypoxia-responsive genes. Each of the 3 VvERF-VIIs were substrates for oxygen-dependent proteolysis in vitro, as a function of the N-terminal cysteine. Collectively, these data support an important developmental function of oxygen-dependent signalling in determining the timing and effective coordination bud burst in grapevine. In addition, novel regulators, including GASA-, TCP-, MYB3R-, PLT-, and WUS-like transcription factors, were identified as hallmarks of the orderly and functional resumption of growth following quiescence in buds. PMID- 29336036 TI - The incidence and significance of periictal apnea in epileptic seizures. AB - OBJECTIVE: The aim of this study was to investigate periictal central apnea as a seizure semiological feature, its localizing value, and possible relationship with sudden unexpected death in epilepsy (SUDEP) pathomechanisms. METHODS: We prospectively studied polygraphic physiological responses, including inductance plethysmography, peripheral capillary oxygen saturation (SpO2 ), electrocardiography, and video electroencephalography (VEEG) in 473 patients in a multicenter study of SUDEP. Seizures were classified according to the International League Against Epilepsy (ILAE) 2017 seizure classification based on the most prominent clinical signs during VEEG. The putative epileptogenic zone was defined based on clinical history, seizure semiology, neuroimaging, and EEG. RESULTS: Complete datasets were available in 126 patients in 312 seizures. Ictal central apnea (ICA) occurred exclusively in focal epilepsy (51/109 patients [47%] and 103/312 seizures [36.5%]) (P < .001). ICA was the only clinical manifestation in 16/103 (16.5%) seizures, and preceded EEG seizure onset by 8 +/- 4.9 s, in 56/103 (54.3%) seizures. ICA >=60 s was associated with severe hypoxemia (SpO2 <75%). Focal onset impaired awareness (FOIA) motor onset with automatisms and FOA nonmotor onset semiologies were associated with ICA presence (P < .001), ICA duration (P = .002), and moderate/severe hypoxemia (P = .04). Temporal lobe epilepsy was highly associated with ICA in comparison to extratemporal epilepsy (P = .001) and frontal lobe epilepsy (P = .001). Isolated postictal central apnea was not seen; in 3/103 seizures (3%), ICA persisted into the postictal period. SIGNIFICANCE: ICA is a frequent, self-limiting semiological feature of focal epilepsy, often starting before surface EEG onset, and may be the only clinical manifestation of focal seizures. However, prolonged ICA (>=60 s) is associated with severe hypoxemia and may be a potential SUDEP biomarker. ICA is more frequently seen in temporal than extratemporal seizures, and in typical temporal seizure semiologies. ICA rarely persists after seizure end. ICA agnosia is typical, and thus it may remain unrecognized without polygraphic measurements that include breathing parameters. PMID- 29336038 TI - A single-nucleotide polymorphism in the canine cytochrome b5 reductase (CYB5R3) gene is associated with sulfonamide hypersensitivity and is overrepresented in Doberman Pinschers. AB - Canine sulfonamide hypersensitivity (HS) has been associated with a variant in the cytochrome b5 reductase gene (CYB5R3 729A>G), which encodes a drug detoxifying enzyme. Study objectives were to determine variant allele frequency in Doberman Pinschers (DOBE), a breed which may be predisposed to sulfonamide HS, and to characterize the effects of CYB5R3 729G on gene expression and function. CYB5R3 729A>G allele frequencies were compared between DOBE (n = 24) vs. non Doberman (non-DOBE; n = 60) dogs. CYB5R3mRNA expression, protein expression, and reduction of sulfamethoxazole hydroxylamine were compared between banked canine liver samples of 729AA vs. GG genotype. The 729G allele was overrepresented in DOBE (1.00) vs. non-DOBE dogs (0.567, p < .0001). mRNA and protein expressions as well as cyt b5 reductase activity were similar between livers of AA and GG genotype. All Doberman Pinschers in this study were homozygous for CYB5R3 729G, which could contribute to this breed's apparent predisposition to sulfonamide HS. However, CYB5R3 729G does not alter sulfamethoxazole detoxification capacity, so a direct role could not be demonstrated. It is possible that this marker is linked to another contributing variant. PMID- 29336039 TI - Pollen germination and in vivo fertilization in response to high-temperature during flowering in hybrid and inbred rice. AB - High-temperature during flowering in rice causes spikelet sterility and is a major threat to rice productivity in tropical and subtropical regions, where hybrid rice development is increasingly contributing to sustain food security. However, the sensitivity of hybrids to increasing temperature and physiological responses in terms of dynamic fertilization processes is unknown. To address these questions, several promising hybrids and inbreds were exposed to control temperature and high day-time temperature (HDT) in Experiment 1, and hybrids having contrasting heat tolerance were selected for Experiment 2 for further physiological investigation under HDT and high-night-time-temperature treatments. The day-time temperature played a dominant role in determining spikelet fertility compared with the night-time temperature. HDT significantly induced spikelet sterility in tested hybrids, and hybrids had higher heat susceptibility than the high-yielding inbred varieties. Poor pollen germination was strongly associated with sterility under high-temperature. Our novel observations capturing the series of dynamic fertilization processes demonstrated that pollen tubes not reaching the viable embryo sac was the major cause for spikelet sterility under heat exposure. Our findings highlight the urgent need to improve heat tolerance in hybrids and incorporating early-morning flowering as a promising trait for mitigating HDT stress impact at flowering. PMID- 29336040 TI - Evaluation of reference values of standard semen parameters in fertile Egyptian men. AB - The reference values of human semen, published in the WHO's latest edition in 2010, were lower than those previously reported. The objective of this study was to evaluate reference values of standard semen parameters in fertile Egyptian men. This cross-sectional study included 240 fertile men. Men were considered fertile when their wives had recent spontaneous pregnancies with time to pregnancy (TTP) <=12 months. The mean age of fertile men was 33.8 +/- 0.5 years (range 20-55 years). The 5th percentiles (95% confidence interval) of macroscopic semen parameters were 1.5 ml for volume and 7.2 for pH. The 5th percentiles of microscopic parameters were 15 million/ml for sperm concentration, 30 million per ejaculate for total sperm count, 50% for total motility, 40% for progressive motility, 62% for vitality, 4% for normal sperm forms and 0.1 million/ml for seminal leucocyte counts. In conclusion, fertile Egyptian men had higher reference values of sperm total motility, progressive motility and vitality, and lower reference values for total sperm counts as compared to those determined by the latest edition of the WHO laboratory manual in 2010. Other semen parameters were identical to those defined by the WHO 2010 manual. PMID- 29336041 TI - Symptoms of social anxiety, depression, and stress in parents of children with social anxiety disorder. AB - OBJECTIVES: It has been suggested that elevated maternal social anxiety may play a disorder-specific role in maintaining childhood social anxiety disorder (SAD), but few studies have examined whether mothers of children with SAD are more socially anxious than mothers of children with other anxiety disorders (ANX). This study set out to examine whether symptoms of social anxiety were more severe amongst mothers of 7-12 year old children presenting for treatment with SAD (n = 260) compared to those presenting with ANX (n = 138). In addition, we examined whether there were differences between these two groups in terms of maternal and paternal general anxiety, depression, and stress. METHOD: Parents of 7-12 year old children referred for treatment of SAD or ANX completed self-report questionnaire measures of emotional symptoms. RESULTS: Compared to mothers of children with ANX, mothers of children with SAD reported significantly higher levels of social anxiety, general anxiety, and depression. In addition, fathers of children with SAD reported significantly higher levels of anxiety, stress, and depression than fathers of children with ANX. CONCLUSIONS: This study is one of the few existing studies that have examined mothers' and fathers' psychopathology across different childhood anxiety disorders. Compared to parents of children with ANX, parents of children with SAD may have poorer mental health which may inhibit optimum child treatment outcomes for children with SAD. Thus, targeting parental psychopathology may be particularly important in the treatment of childhood SAD. PRACTITIONER POINTS: Consideration of parental psychopathology may be particularly important in the treatment of childhood social anxiety disorder. Mothers of children with social anxiety disorder are more socially anxious than mothers of children with other anxiety disorders Fathers of children with social anxiety disorder are more anxious and depressed than fathers of children with other anxiety disorders Participants were predominantly of high socioeconomic status. Parental diagnostic information was not obtained. PMID- 29336042 TI - Forum for the History of the Human Sciences. PMID- 29336043 TI - 2017 Cheiron Young Scholar Award Winner: Shayna Fox Lee. PMID- 29336044 TI - ESHHS 2018, GRONINGEN (NL) - First call for abstracts. PMID- 29336045 TI - The creation of a postcolonial subject: The Chicago and Ateneo de Manila schools and the Peace Corps in the Philippines, 1960-1970. AB - In the 1950s and 1960s scholars from the University of Chicago and the Ateneo de Manila created social scientific knowledge that helped establish the Peace Corps as a Cold War institution in the Philippines. Central were the social scientists at the University of Chicago and the Ateneo de Manila University who established a knowable postcolonial subject: "the Filipino," which resulted from their research on Philippine values. In this context, the Ateneo/Chicago social scientists developed the "SIR," the "smooth interpersonal relation" model that entails the notion that Filipinos and Filipinas particularly valued this nonconfrontational skill set among people. The SIR model was taught by social science experts to early Peace Corps volunteers as they prepared for their assignments in the Philippines. The article shows how the SIR model could cause distress and confusion as it was applied by Peace Corps volunteers in the Philippines. PMID- 29336046 TI - News and Notes: Conferences. PMID- 29336047 TI - Acrodermatitis acidaemica. AB - Methylmalonic acidaemia (MMA) is an inborn error of amino acid metabolism that may be associated with cutaneous manifestations mimicking other diagnoses, including staphylococcal scalded skin syndrome (SSSS), psoriasis and acrodermatitis enteropathica. Whether this is due to the underlying metabolic disorder itself or occurs as a consequence of dietary restriction has yet to be elucidated. Skin biopsies typically show histological features shared by a number of other metabolic disorders and nutritional deficiency-associated diseases. Some presentations, especially SSSS-like eruptions, may be associated with acute metabolic decompensation. An underlying metabolic disorder, such as MMA, should be considered in a diagnosed adult or undiagnosed child presenting with skin eruptions that resemble those listed above, so that specialist management may be initiated early. PMID- 29336048 TI - Fetal growth: too little or just right? PMID- 29336049 TI - A distinct group of north European Aedes vexans as determined by mitochondrial and nuclear markers. AB - The floodwater mosquito Aedes (Aedimorphus) vexans (Meigen, 1830) (Diptera: Culicidae) is common in several areas of Sweden and is predicted to become more abundant in the wake of expected changes in precipitation and temperature caused by climate change. As well as being a nuisance, Ae. vexans can act as a vector of over 30 viruses. In the event of an outbreak of disease caused by a vector-borne virus, knowledge of the distribution, population structure and intermixing of populations from different locations will help direct resources to target locations to prevent spread of the pathogen. The present study analysed individual Ae. vexans from eight locations throughout Sweden. Based on the mitochondrial cytochrome oxidase I (COI) marker, a subset of the analysed mosquitoes cluster apart from the other samples. Similarly, two nuclear loci were sequenced and the same phylogenetic structure observed. These results indicate that this group represents a reproductively isolated population among Ae. vexans. Comparisons with COI sequences held in the Barcode of Life Database (BoLD) for Ae. vexans from around the world show that specimens collected in Belgium and Estonia group together with the Swedish group, suggesting that this genotype is present throughout northern Europe. These results suggest there is a cryptic taxonomic unit related to Ae. vexans in northern Europe. PMID- 29336050 TI - Sperm fluorescent in situ hybridisation study of interchromosomal effect in six Tunisian carriers of reciprocal and Robertsonian translocations. AB - Carriers of structural chromosomal anomalies, translocations and inversions are at increased risk of aneuploid gametes production. Besides the direct effect on the involved chromosomes, these rearrangements might disturb the segregation of other structurally normal chromosomes during meiosis. Such event is known as interchromosomal effect. In this study, six male carriers of translocations, four reciprocals and two Robertsonians, were investigated. In addition, seven fertile men with normal 46,XY karyotypes and normal sperm characteristics were enrolled as a control group. Spermatic fluorescent in situ hybridisation specific for chromosomes X, Y, 18, 21 and 22 was carried out. The Mann-Whitney U-test was used to compare the aneuploidy rates between patients and controls. All translocation carriers showed significantly increased frequencies of disomy of all investigated chromosomes, and diploid gametes compared with the control group (p < .05). However, disomy XY was not significantly different between controls and patients (p > .05). We have also observed a considerable interindividual variability in disomy and diploidy rates. These results confirm that the interchromosomal effect seems to exist and could contribute to higher rates of abnormal prenatal aneuploidy, resulting in a small increase in the risk of miscarriage and birth of children with congenital abnormalities and a potential reduction in fertility. PMID- 29336051 TI - Right testicular volume is a dominant predictor of testicular function determined by sperm parameters and total testosterone. AB - This study aims to evaluate the predictive value of left testicular volume (LTV) and right testicular volume (RTV) for testicular function respectively. Men who requested fertility testing for any reason were enrolled from December 2012 to November 2015. Subjects with primary scrotal diseases or a condition interfering reproductive system were excluded. Testicular volume (TV) was evaluated by scrotal ultrasound. Sex hormone and semen analysis including sperm concentration (SC) and sperm motility rate (SMR) were performed. Statistical analysis including comparison, stepwise linear regression and logistic regression was used. Two hundred and seventy-four patients with oligoasthenozoospermia/low testosterone and 27 control subjects were enrolled. Both LTV and RTV positively correlated with testicular function, and no differences were found between bilateral TV. RTV is the best independent factor associated with testicular function determined by SC (beta=.292, p < .001), SMR (beta=.227, p < .001) and total testosterone (TT) (beta=.245, p < .001). Using a RTV value of 15.47 ml, the highest discriminating sensitivity and specificity were 66.7% and 62.4% respectively. RTV (<15 ml) was the only positive predictor for low testicular function (odds ratio=2.79, 95% confidence interval: 1.18-6.66; p =.020). RTV rather than LTV is the independent factor of overall testicular function determined by semen quality and TT levels. Further studies are needed to support and elucidate the difference in volume function between bilateral testes. PMID- 29336052 TI - Rapidly developing heart failure from capecitabine cardiotoxicity: a case study. PMID- 29336053 TI - Specific Modulation of Vertebral Marrow Adipose Tissue by Physical Activity. AB - Marrow adipose tissue (MAT) accumulation with normal aging impacts the bone, hemopoiesis, and metabolic pathways. We investigated whether exercise was associated with lower MAT, as measured by vertebral marrow fat fraction (VFF) on magnetic resonance imaging. A total of 101 healthy individuals (54 females) aged 25 to 35 years without spine or bone disease but with distinct exercise histories were studied. Long-distance runners (67 km/wk, n = 25) exhibited lower mean lumbar VFF (27.9% [8.6%] versus 33.5% [6.0%]; p = 0.0048) than non-sporting referents (n = 24). In habitual joggers (28 km/wk, n = 30), mean lumbar VFF was 31.3% (9.0%) (p = 0.22 versus referents) and 6.0 percentage points lower than referents at vertebrae T10 , T11 , and T12 (p <= 0.023). High-volume road cycling (275 km/wk, n = 22) did not impact VFF. 3D accelerations corresponding to faster walking, slow jogging, and high-impact activities correlated with lower VFF, whereas low-impact activities and sedentary time correlated with higher mean lumbar VFF (all p <= 0.05). Given an estimated adipose bone marrow conversion of 7% per decade of life, long distance runners, with 5.6 percentage points lower VFF, showed an estimated 8-year younger vertebral marrow adipose tissue phenotype. Regression analysis showed a 0.7 percentage point reduction in mean lumbar VFF with every 9.4 km/wk run (p = 0.002). This study presents the first evidence in humans or animals that specific volumes and types of exercise may influence the age-determined adipose marrow conversion and result in low MAT. These results identify a potentially modifiable risk factor for prevalent chronic conditions related to bone metabolism, hemopoietic production, and other metabolic functions with potential global health applications. (c) 2017 American Society for Bone and Mineral Research. PMID- 29336055 TI - Intrauterine ritodrine exposure and childhood asthma: Is ritodrine a real culprit? PMID- 29336054 TI - The EAACI/GA2LEN/EDF/WAO guideline for the definition, classification, diagnosis and management of urticaria. AB - This evidence- and consensus-based guideline was developed following the methods recommended by Cochrane and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) working group. The conference was held on 1 December 2016. It is a joint initiative of the Dermatology Section of the European Academy of Allergology and Clinical Immunology (EAACI), the EU-founded network of excellence, the Global Allergy and Asthma European Network (GA2LEN), the European Dermatology Forum (EDF) and the World Allergy Organization (WAO) with the participation of 48 delegates of 42 national and international societies. This guideline was acknowledged and accepted by the European Union of Medical Specialists (UEMS). Urticaria is a frequent, mast cell-driven disease, presenting with wheals, angioedema, or both. The lifetime prevalence for acute urticaria is approximately 20%. Chronic spontaneous urticaria and other chronic forms of urticaria are disabling, impair quality of life and affect performance at work and school. This guideline covers the definition and classification of urticaria, taking into account the recent progress in identifying its causes, eliciting factors and pathomechanisms. In addition, it outlines evidence-based diagnostic and therapeutic approaches for the different subtypes of urticaria. PMID- 29336056 TI - ILEI is an important intermediate participating in the formation of TGF-beta1 induced renal tubular EMT. AB - : Renal interstitial fibrosis is the most common process by which chronic kidney diseases progress to end-stage renal failure. Epithelial-to-mesenchymal transitions (EMTs) play a crucial role in the progression of renal interstitial fibrosis. A newly identified cytokine, interleukin-like EMT inducer (ILEI), has been linked to EMT in some diseases. However, the effects of ILEI on renal tubular EMT have not yet been well established. Here, we characterize the expression of ILEI in tubular EMT and describe the role and mechanism of ILEI in transforming growth factor beta 1 (TGF-beta1)-induced renal tubular EMT. The results indicate that ILEI is involved in renal tubular EMT induced by TGF-beta1, as overexpression of ILEI not only induces EMT of HK-2 cells independently but also profoundly enhances EMT in response to TGF-beta1. Supporting this finding, ILEI small interfering RNA was found to block the EMT of HK-2 cells induced by TGF-beta1. This work additionally suggests ILEI mediates TGF-beta1-dependent EMT via the extracellular regulated protein kinases (ERKs) and protein kinase B (Akt) signalling pathways. In conclusion, ILEI appears to play a crucial role in mediating TGF-beta1-induced EMT through the Akt and ERK pathways, which may provide a therapeutic target for the treatment of fibrotic kidney diseases. SIGNIFICANCE OF THE STUDY: There is no study reporting the effect of ILEI in renal EMTs. In this research, we examined the role and mechanism of ILEI in EMT using tubular epithelial cell; we found that ILEI participated in renal tubular EMT, and overexpression of ILEI can not only induce EMT of HK-2 cells independently but also enhance EMT in response to TGF-beta1. Meanwhile, we found ILEI small interfering RNA blocked the EMT induced by TGF-beta1, and ILEI participates in the EMT caused by TGF-beta1 via ERK and Akt signalling pathways. We hoped to provide new ideas in further study on the prevention and treatment of fibrotic kidney diseases. PMID- 29336057 TI - Amelioration of colitis through blocking lymphocytes entry to Peyer's patches by sphingosine-1-phosphate lyase inhibitor. AB - BACKGROUND AND AIM: Sphingosine-1-phosphate (S1P) receptor 1, a therapeutic target of the S1P1 agonist FTY720, plays a crucial role in lymphocyte migration and is expressed in several cells including naive T lymphocytes and endothelial cells. 2-Acetyl-4-tetrahydroxybutyl imidazole (THI), an inhibitor of S1P lyase, exhibits immunomodulatory activity through increasing the S1P concentration in the secondary lymphoid organs, but its effects on colitis remain unclear. This study aimed to clarify how THI affects colitis and migration of naive T lymphocytes in Peyer's patches (PPs). METHODS: The effect of THI on gut immunity was investigated by analyzing the dextran sulfate sodium (DSS)-induced murine colitis model, lymphocyte components in thoracic duct lymphocytes (TDLs), and microscopic movement of TDLs in PPs. RESULTS: 2-Acetyl-4-tetrahydroxybutyl imidazole ameliorated DSS-induced colitis histologically by causing a significant decrease in colonic lymphocyte infiltration and expression of mucosal pro inflammatory cytokines. THI suppressed the inflow of naive T lymphocytes into the thoracic duct. Microscopic observation of PPs in control animals revealed that many TDLs egressed to the stroma and migrated to lymph capillaries after attaching to the high endothelial venules (HEVs). THI or FTY720 treatment in recipient animals blocked lymphocyte egression from the HEVs to the stroma. CONCLUSIONS: This is the first study to clarify the ameliorating effects of THI on DSS-induced colitis. Microscopic observations demonstrated the involvement of HEVs in the egression of S1P-dependent gut-tropic T lymphocytes to lymph capillaries. This S1P lyase inhibitor might become a novel immunosuppressant for inflammatory bowel disease therapy by blocking infiltration of lymphocytes through HEVs into the stroma in PPs. PMID- 29336058 TI - Programming settings and recharge interval in a prospective study of a rechargeable sacral neuromodulation system for the treatment of overactive bladder. AB - AIMS: The RELAX-OAB study is designed to confirm the safety, efficacy, and technical performance of the Axonics r-SNM System, a miniaturized, rechargeable SNM system approved in Europe and Canada for the treatment of bladder and bowel dysfunction. The purpose of this article is to describe study subjects' ability to charge the rechargeable neurostimulator and to document their neurostimulator program settings and recharge interval over time. METHODS: Fifty-one OAB patients were implanted in a single-stage procedure. These results represent the 3-month charging experience for 48 subjects who completed the 3-month follow-up. Recharge intervals were estimated using therapy stimulation settings and subject experience was evaluated using questionnaires. RESULTS: Forty-seven of forty eight (98%) subjects were able to successfully charge their device prior to follow-up within 1-month post-implant. At 3-month post-implant, 98% of subjects were able to charge prior to their follow-up visit. Average stimulation amplitude across all subjects was 1.8 mA (+/-1.1 mA). A total of 69% of subjects had >=14 day recharge intervals (time between charging) and 98% of subjects had >=7-day recharge interval. No charging related adverse events occurred. CONCLUSIONS: Study subjects were able to charge the Axonics r-SNM System and stimulation settings provided 2 weeks of therapy between recharging for most subjects. Subject satisfaction indicates that subjects are satisfied with rechargeable SNM therapy. PMID- 29336059 TI - Erratum for Ann. N.Y. Acad. Sci. Volume 1299: v-x. PMID- 29336060 TI - What the non-nephrologist needs to know about dialysis. AB - The End-Stage Renal Disease (ESRD) program now serves approximately 675,000 individuals in the United States at a cost of $26.1 billion to the Medicare system. Given the size of this population, healthcare providers from all disciplines will deliver care to patients on dialysis. Mortality remains high among patients on chronic dialysis, with 42.3% surviving 5 years. As this is a vulnerable population, it is important in the care of ESRD patients that non nephrologists have a working knowledge of issues germane to dialysis. This review examines the physiology, mechanics, complications, and care delivery concerns of kidney dialysis modalities relevant to the non-nephrologist. The majority of patients receive in-center hemodialysis thrice weekly, with a small proportion on home-based therapies such as peritoneal dialysis or home hemodialysis. Inpatients may undergo hemodialysis or peritoneal dialysis, and in critically ill patients, continuous renal replacement therapies are utilized. Practical aspects of each of these modalities are discussed. PMID- 29336061 TI - Classifying High-risk Children Born Preterm. PMID- 29336062 TI - Time-Varying Effects of Signs and Symptoms on Pregnancy Loss <20 Weeks: Findings from a Preconception Prospective Cohort Study. AB - BACKGROUND: Although pregnancy loss affects one-third of pregnancies, the associated signs/symptoms have not been fully described. Given the dynamic nature of maternal physiologic adaptation to early pregnancy, we posited the relationships between signs/symptoms and subsequent loss would vary weekly. METHODS: In a preconception cohort with daily follow-up, pregnancies were ascertained by self-administered sensitive home pregnancy tests on day of expected menses. We evaluated the effects of weekly time-varying signs/symptoms (including vaginal bleeding, lower abdominal cramping, and nausea and/or vomiting) on pregnancy loss <20 weeks in Cox proportional hazards models and calculated the week-specific probability of loss by the presence/absence of each sign/symptom. RESULTS: Of 341 pregnancies ascertained by home pregnancy test, 95 (28%) ended in loss. Relationships between signs/symptoms and loss varied across time since first positive pregnancy test. In the first week following pregnancy confirmation, when many losses occurred, bleeding [hazard ratio (HR) 8.7, 95% confidence interval (CI) 4.7, 16.0] and cramping (HR 1.8, 95% CI 1.2, 2.7) were associated with loss even when accompanied by nausea and/or vomiting (HR 5.2, 95% CI 2.6, 10.5). After the second week, new relationships emerged with nausea and/or vomiting inversely associated (HR range 0.6-0.3, all 95% CI upper bounds <1.00) and bleeding no longer associated with loss. Probabilities of loss of ranged from 78% (95% CI 59%, 96%) with bleeding present in week 1 to 8% (95% CI 5%, 12%) with nausea/vomiting present in week 5. CONCLUSIONS: Relationships between signs/symptoms and pregnancy loss vary in early pregnancy possibly reflecting maternal physiologic response. PMID- 29336063 TI - Use of complementary and alternative medicine in children with asthma. PMID- 29336064 TI - Home hemodialysis education during postdoctoral training: Challenges and innovations. AB - Inadequate education in home hemodialysis (HHD) fellowship training might contribute to underutilization of this modality in the United States. Most graduates of nephrology fellowships do not grade themselves as competent in HHD suggesting that fellowship training in HHD is inadequate. An essential component for fellow education is at least one faculty member with expertise in HHD who is passionate about promoting the use of this modality. At a minimum, fellow training should utilize a curriculum that includes both lectures about HHD and outpatient clinical exposure to this modality over a period of at least 6-12 months. Fellows benefit from the opportunity to transition at least three patients to a home modality to gain experience with modality education, access placement, initial prescriptions, and home dialysis training. They should spend time with HHD training nurses to learn more about modality education, observe nurse intake interviews with patients in order to learn the criteria for entrance into the home dialysis program as well as recognize how to identify potential barriers to successful home dialysis therapy. To expose fellows to problems that do not occur during clinic visits fellows are encouraged to take first call during the day for HHD patients. There are many opportunities to do research and quality improvement projects which might also propel some fellows into an academic career as a home dialysis nephrologist. PMID- 29336065 TI - Optimization of 18 F-syntheses using 19 F-reagents at tracer-level concentrations and liquid chromatography/tandem mass spectrometry analysis: Improved synthesis of [18 F]MDL100907. AB - Traditional radiosynthetic optimization faces the challenges of high radiation exposure, cost, and inability to perform serial reactions due to tracer decay. To accelerate tracer development, we have developed a strategy to simulate radioactive 18 F-syntheses by using tracer-level (nanomolar) non-radioactive 19 F reagents and LC-MS/MS analysis. The methodology was validated with fallypride synthesis under tracer-level 19 F-conditions, which showed reproducible and comparable results with radiosynthesis, and proved the feasibility of this process. Using this approach, the synthesis of [18 F]MDL100907 was optimized under 19 F-conditions with greatly improved yield. The best conditions were successfully transferred to radiosynthesis. A radiochemical yield of 19% to 22% was achieved with the radiochemical purity >99% and the molar activity 38.8 to 53.6 GBq/ MUmol (n = 3). The tracer-level 19 F-approach provides a high throughput and cost-effective process to optimize radiosynthesis with reduced radiation exposure. This new method allows medicinal and synthetic chemists to optimize radiolabeling conditions without the need to use radioactivity. PMID- 29336066 TI - Medication use and association with urinary incontinence in women: Data from the Norwegian Prescription Database and the HUNT study. AB - AIMS: To investigate the association between medication use and urinary incontinence (UI) in women. METHODS: In a cross-sectional population-based study we analyzed questionnaire data on UI, including type and severity, from 21 735 women included in the Nord-Trondelag Health Study (HUNT) in Norway. These data were linked to data on filled prescriptions retrieved from the Norwegian Prescription Database. A multivariate logistic regression model was used to calculate the odds for having UI related to the number of filled prescriptions for selected drug groups during the 6 months prior to participation in HUNT, after adjustment for numerous confounding factors. RESULTS: Significant associations with UI were found for selective serotonin reuptake inhibitors (SSRIs) and lamotrigine with OR 1.52 (1.30-1.78) and 2.73 (1.59-4.68) for two or more filled prescriptions. Both for SSRIs and lamotrigine, the associations were pronounced for mixed UI, whereas there were no clear-cut increased risk of stress UI and urgency UI. The relations were strongest in women with the most severe symptoms. One filled prescription of antipsychotics, but not two or more, was also found to be related to UI with OR 1.91 (1.35-2.71). No associations were found for benzodiazepines, zopiclone/zolpidem, beta blockers, and diuretics. CONCLUSIONS: The odds for having UI were found to be about 1.5-fold in women using SSRIs and almost threefold in women using lamotrigine. The association with lamotrigine has not been reported previously, and should be further evaluated in future studies. PMID- 29336068 TI - Isatin, an endogenous nonpeptide biofactor: A review of its molecular targets, mechanisms of actions, and their biomedical implications. AB - Isatin (indole-2,3-dione) is an oxidized indole. It is widely distributed in mammalian tissues and body fluids, where isatin concentrations vary significantly from <0.1 to > 10 uM. Isatin output is increased under conditions of stress. Exogenously administered isatin is characterized by low toxicity, mutagenicity, and genotoxicity in vivo. Cytotoxic effects of isatin on various cell cultures are usually observed at concentrations exceeding 100 uM. Binding of [3 H]isatin to rat brain sections is consistent with its physiological concentrations. Proteomic analysis of mouse and rat brain isatin-binding proteins revealed about 90 individual proteins, which demonstrated significant interspecies differences (rat versus mouse). Certain evidence exist that redox state(s) and possibly other types of posttranslational modifications regulate affinity of target proteins to isatin. Recent data suggest that interacting with numerous intracellular isatin binding proteins, isatin can act as a regulator of complex protein networks in norm and pathology. Physiological concentrations of isatin in vitro inhibit monoamine oxidase B and natriuretic peptide receptor guanylate cyclase, higher (neuroprotective) concentrations (50-400 MUM) cause apoptosis of various (including malignant tumor) cell lines and influence expression of certain apoptosis-related genes. Being administered in vivo, isatin exhibits various behavioral effects; it attenuates manifestations of MPTP-induced parkinsonism and tumor growth in experimental animal models. (c) 2017 BioFactors, 44(2):95-108, 2018. PMID- 29336069 TI - An examination of the interaction between morality and self-control in offending: A study of differences between girls and boys. AB - BACKGROUND: There is a well-documented gender difference in offending, with evidence that boys, on average, are more involved in crime than girls. Opinions differ, however, on whether the causes of crime apply to girls and boys similarly. AIMS: Our aim is to explore crime propensity in boys and girls. Our research questions were (1) are there differences between boys and girls in moral values and self-control; (2) are these attributes similarly correlated with offending among girls and boys; and (3) is any interaction effect between morality and self-control identical for girls and boys. METHODS: Data were drawn from the Malmo Individual and Neighbourhood Development Study, which includes 481 girls and boys aged 16-17. An 8-item self-control scale was derived from Grasmick's self-control instrument; we created a 16-item morality scale. Analysis of variance was used to test for differences in scale scores. RESULTS: There were significant gender differences in moral values but not self-control. Moral values and self-control were significantly correlated with offending among both girls and boys. In the multiple regression analysis, the three-way interaction term used to test the interaction between gender, self-control and moral values was non-significant, indicating that the magnitude of the self-control-moral value interaction is not affected by gender. CONCLUSIONS: Our findings indicate that effects of morality and self-control are general and apply to girls and boys similarly, so more research is needed to explain gender differences in crime prevalence. (c) 2018 The Authors Criminal Behaviour and Mental Health Published by John Wiley & Sons Ltd. PMID- 29336070 TI - Changes in surface characteristics of titanium and zirconia after surface treatment with ultraviolet light or non-thermal plasma. AB - Positive effects of irradiation with ultraviolet (UV) light or treatment with non thermal plasma on titanium and zirconia surfaces have been described in various studies. The aim of this study was to assess and compare the changes in the physicochemical surface conditions of titanium and zirconia surfaces after a short treatment with UV light or with non-thermal plasmas of argon or oxygen. Titanium and zirconia samples with moderately rough surfaces were treated for 12 min either in a UV-light oven or in a non-thermal plasma reactor that generates non-thermal plasmas of oxygen or argon. Changes in surface conditions were assessed by confocal microscopy, dynamic contact angle measurement, and X-ray photoelectron spectroscopy (XPS). No changes in roughness occurred. Ultraviolet irradiation and non-thermal plasma significantly increased the wettability of the titanium and zirconia surfaces. X-ray photoelectron spectroscopy showed an increase of oxygen and a significant decrease of carbon after treatment with either method. Thus, ultraviolet light and non-thermal plasma were found to be able to improve the chemical surface conditions of titanium and zirconia following a short exposure time. However, further in vitro and in vivo studies are needed to determine the relevance of the results. PMID- 29336071 TI - Hierarchical N-Rich Carbon Sponge with Excellent Cycling Performance for Lithium Sulfur Battery at High Rates. AB - Lithium-sulfur batteries (LSBs) are receiving extensive attention because of their high theoretical energy density. However, practical applications of LSBs are still hindered by their rapid capacity decay and short cycle life, especially at high rates. Herein, a highly N-doped (~13.42 at %) hierarchical carbon sponge (HNCS) with strong chemical adsorption for lithium polysulfide is fabricated through a simple sol-gel route followed by carbonization. Upon using the HNCS as the sulfur host material in the cathode and an HNCS-coated separator, the battery delivers an excellent cycling stability with high specific capacities of 424 and 326 mA h g-1 and low capacity fading rates of 0.033 % and 0.030 % per cycle after 1000 cycles under high rates of 5 and 10 C, respectively, which are superior to those of other reported carbonaceous materials. These impressive cycling performances indicate that such a battery could promote the practical application prospects of LSBs. PMID- 29336067 TI - Treatment of allergic rhinitis using mobile technology with real-world data: The MASK observational pilot study. AB - BACKGROUND: Large observational implementation studies are needed to triangulate the findings from randomized control trials as they reflect "real-world" everyday practice. In a pilot study, we attempted to provide additional and complementary insights on the real-life treatment of allergic rhinitis (AR) using mobile technology. METHODS: A mobile phone app (Allergy Diary, freely available in Google Play and Apple App stores) collects the data of daily visual analog scales (VAS) for (i) overall allergic symptoms, (ii) nasal, ocular, and asthma symptoms, (iii) work, as well as (iv) medication use using a treatment scroll list including all medications (prescribed and over the counter (OTC)) for rhinitis customized for 15 countries. RESULTS: A total of 2871 users filled in 17 091 days of VAS in 2015 and 2016. Medications were reported for 9634 days. The assessment of days appeared to be more informative than the course of the treatment as, in real life, patients do not necessarily use treatment on a daily basis; rather, they appear to increase treatment use with the loss of symptom control. The Allergy Diary allowed differentiation between treatments within or between classes (intranasal corticosteroid use containing medications and oral H1 antihistamines). The control of days differed between no [best control], single, or multiple treatments (worst control). CONCLUSIONS: This study confirms the usefulness of the Allergy Diary in accessing and assessing everyday use and practice in AR. This pilot observational study uses a very simple assessment (VAS) on a mobile phone, shows novel findings, and generates new hypotheses. PMID- 29336072 TI - Re: Re: Karabakan M, Bozkurt A, Hirik E, Celebi B, Akdemir S, Guzel O, Nuhoglu B. The prevalence of premature ejaculation in young Turkish men. Andrologia 2016; 24: 1-5. PMID- 29336073 TI - Hypoxia-ischemia and brain injury in infants born preterm. PMID- 29336074 TI - Closing the knowledge gap in Mexico: towards evidence-based medicine in childhood disability. PMID- 29336075 TI - What causes the encephalopathy of prematurity? PMID- 29336076 TI - Cerebral palsy and genomics: an international consortium. PMID- 29336077 TI - Perspectives on caring for the child and the caregiver. PMID- 29336078 TI - The novel Axonics(r) rechargeable sacral neuromodulation system: Procedural and technical impressions from an initial North American experience. AB - AIMS: The rechargeable Axonics(r) r-SNMTM System is currently approved and available in Europe and Canada, with US FDA approval pending. This article provides a review of the system along with technique and technical considerations for its implantation based on my clinical experience with the new Axonics r-SNM System. METHODS: The description of the surgical technique and technological considerations for the Axonics r-SNM System is based my clinical experience of 11 cases performed at UHN Toronto Western Hospital. RESULTS: While the Axonics system is intended to provide similar therapy to the existing SNM system, the Axonics system has several new technological advances. Understanding these differences and optimizing surgical technique is anticipated to improve outcomes and patient experience. CONCLUSIONS: Overall the Axonics r-SNM System and implant procedure requires minimal learning curve for experienced SNM implanters and provides several enhanced features for physicians and patients. Further experience by others may elucidate other nuances important to the implantation of this novel SNM system. PMID- 29336079 TI - The low FODMAP diet in the management of irritable bowel syndrome: an evidence based review of FODMAP restriction, reintroduction and personalisation in clinical practice. AB - Dietary restriction of fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) is effective in the management of functional gastrointestinal symptoms that occur in irritable bowel syndrome (IBS). Numerous reviews have been published regarding the evidence for their restriction in the low FODMAP diet; however, few reviews discuss the implementation of the low FODMAP diet in practice. The aim of this review is to provide practical guidance on patient assessment and the implementation and monitoring of the low FODMAP diet. Broadly speaking, the low FODMAP diet consists of three stages: FODMAP restriction; FODMAP reintroduction; and FODMAP personalisation. These stages can be covered in at least two dietetic appointments. The first appointment focuses on confirmation of diagnosis, comprehensive symptom and dietary assessment, detailed description of FODMAPs and their association with symptom induction, followed by counselling regarding FODMAP restriction. Dietary counselling should be tailored to individual needs and appropriate resources provided. At the second appointment, symptoms and diet are re-assessed and, if restriction has successfully reduced IBS symptoms, education is provided on FODMAP reintroduction to identify foods triggering symptoms. Following this, the patient can follow FODMAP personalisation for which a less restrictive diet is consumed that excludes their personal FODMAP triggers and enables a more diverse dietary intake. This review provides evidence and practice guidance to assist in delivering high-quality clinical service in relation to the low FODMAP diet. PMID- 29336080 TI - Special issues for a special community. PMID- 29336081 TI - Measurement of long-range heteronuclear coupling constants using the peak intensity in classical 1D HMBC spectra. AB - In this contribution, we show that the magnitude of heteronuclear long-range coupling constants can be directly extracted from the classical 1D HMBC spectra, as all multiplet lines of a cross-peak always and exclusively vanish for the condition Delta = k/n JCH . To the best of our knowledge, this feature of the classical HMBC has not yet been noticed and exploited. This condition holds true, irrespective of the magnitude and numbers of additional active and passive homonuclear n JHH' couplings. Alternatively, the n JCH value may also be evaluated by fitting the peak's intensity in the individual spectra to its simple sin(pin JCH Delta)exp(-Delta/T2eff ) dependence. Compared to the previously proposed J-HMBC sequences that also use the variation of the cross-peak's intensity for extracting the coupling constants, the classical HMBC pulse sequence is significantly more sensitive. PMID- 29336082 TI - Metabolomics Study of Cultivated Bulbus Fritillariae Cirrhosae at Different Growth Stages using UHPLC-QTOF-MS Coupled with Multivariate Data Analysis. AB - INTRODUCTION: Bulbus fritillariae cirrhosae (known as Chuan bei mu in China, BFC) contain fritillaria steroidal alkaloids as the bioactive ingredients and are widely used as traditional Chinese medicine for the treatment of cough and phlegm. Due to limited wild resources, the cultivated species are becoming predominantly used in Chinese traditional medicine markets. OBJECTIVE: To assess the impact of different growth stages on the alkaloids of cultivated BFC and establish a reference for quality control and guidance for appropriate harvesting practices. METHODS: The ultra-high performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-QTOF-MS) metabolomic strategy was applied to determine potential chemical markers for the discrimination and quality control of cultivated BFC in different growth stages. The molecular feature extraction and multivariate statistical analysis were applied to alkaloid extraction and full metabolomic profiling of cultivated BFC for classification and marker compound characterisation. RESULT: This approach allowed the establishment of a fast and efficient comparative multivariate analysis of the metabolite composition of 42 samples covering growth of cultivated BFC ranging in age from one to seven years old. Four alkaloid compounds were identified in cultivated BFC based on accurate mass, retention time, and MS/MS fragments. These compounds may be used as potential chemical markers for the classification and discrimination of cultivated BFC samples indifferent growth stages. CONCLUSIONS: The proposed analytical method in combination with multivariate statistical analysis comprised a useful and powerful strategy to explore the chemical ingredients and transforming mechanisms of cultivated BFC and for quality evaluation and control. Copyright (c) 2018 John Wiley & Sons, Ltd. PMID- 29336083 TI - How sea level change mediates genetic divergence in coastal species across regions with varying tectonic and sediment processes. AB - Plate tectonics and sediment processes control regional continental shelf topography. We examine the genetic consequences of how glacial-associated sea level change interacted with variable nearshore topography since the last glaciation. We reconstructed the size and distribution of areas suitable for tidal estuary formation from the last glacial maximum, ~20 thousand years ago, to present from San Francisco, California, USA (~38 degrees N) to Reforma, Sinaloa, Mexico (~25 degrees N). We assessed range-wide genetic structure and diversity of three codistributed tidal estuarine fishes (California Killifish, Shadow Goby, Longjaw Mudsucker) along ~4,600 km using mitochondrial control region and cytB sequence, and 16-20 microsatellite loci from a total of 524 individuals. Results show that glacial-associated sea level change limited estuarine habitat to few, widely separated refugia at glacial lowstand, and present-day genetic clades were sourced from specific refugia. Habitat increased during postglacial sea level rise and refugial populations admixed in newly formed habitats. Continental shelves with active tectonics and/or low sediment supply were steep and hosted fewer, smaller refugia with more genetically differentiated populations than on broader shelves. Approximate Bayesian computation favoured the refuge recolonization scenarios from habitat models over isolation by distance and seaway alternatives, indicating isolation at lowstand is a major diversification mechanism among these estuarine (and perhaps other) coastal species. Because sea level change is a global phenomenon, we suggest this top-down physical control of extirpation-isolation-recolonization may be an important driver of genetic diversification in coastal taxa inhabiting other topographically complex coasts globally during the Mid- to Late Pleistocene and deeper timescales. PMID- 29336084 TI - Age onset of offending and serious mental illness among forensic psychiatric patients: A latent profile analysis. AB - BACKGROUND: Developmental typologies regarding age of onset of violence and offending have not routinely taken account of the role of serious mental illness (SMI), and whether age of onset of offending in relation to onset of illness impacts on the manifestation of offending over the life course. AIMS: To test whether forensic psychiatric patients can be classified according to age of onset of SMI and offending, and, if so, whether subtypes differ by sex. METHODS: Details of all 511 patients enrolled into a large forensic mental health service in Ontario, Canada, in 2011 or 2012 were collected from records. RESULTS: A latent profile analysis supported a 2-class solution in both men and women. External validation of the classes demonstrated that those with a younger age onset of serious mental illness and offending were characterised by higher levels of static risk factors and criminogenic need than those whose involvement in both mental health and criminal justice systems was delayed to later life. CONCLUSIONS: Our findings present a new perspective on life course trajectories of offenders with SMI. While analyses identified just two distinct age-of-onset groups, in both the illness preceded the offending. The fact that our sample was entirely drawn from those hospitalised may have introduced a selection bias for those whose illness precedes offending, but findings underscore the complexity and level of need among those with a younger age of onset. Copyright (c) 2018 John Wiley & Sons, Ltd. PMID- 29336085 TI - Endotracheal tube placement during computed tomography of brachycephalic dogs alters upper airway dimensional measurements. AB - Computed tomography (CT) is used to document upper airway lesions in dogs with brachycephalic obstructive airway syndrome. The presence of an endotracheal tube during CT scanning is often required for general anesthesia. We hypothesized that the endotracheal tube placement would change the soft tissue dimensions of the upper airway. The aims of this prospective, method comparison study were to evaluate the reliability of the previously reported upper airway CT measurements with endotracheal tube placement, and to propose measurements that are minimally affected by the endotracheal tube. Twenty brachycephalic dogs were included in this study. Each dog underwent head/neck CT with an endotracheal tube, followed by a second scan without the endotracheal tube. Ten measurements of the soft palate, nasopharynx, and trachea were performed. Tracheal dimension was significantly larger with the endotracheal tube compared to without, whereas the soft palate cross-sectional area was significantly smaller with the endotracheal tube than without the endotracheal tube. The influence of the endotracheal tube on the caudal nasopharynx cross-sectional (transverse-sectional) area varied with a mean proportional absolute difference of 35%. Rostral soft palate thickness, tracheal perimeter, and cross-sectional area of the rostral nasopharynx were the measurements least affected by the endotracheal tube (intraclass correlation coefficient = 0.964, 0.967, and 0.951, respectively). Therefore, we proposed that these three measurements may be most useful for future brachycephalic obstructive airway syndrome studies that require CT scanning of intubated animals. However, with endotracheal tube placement, measurements of soft palate length, caudal nasopharyngeal cross-sectional area, and trachea height and width may not be reliable. PMID- 29336086 TI - Learning to blast a way into crime, or just good clean fun? Examining aggressive play with toy weapons and its relation with crime. AB - BACKGROUND: Researchers, such as Bandura, have proposed that children's mere exposure to the use of play weapons encourages deviant displays of aggression, but there is very little research to support this hypothesis of 20 years. AIM: To examine the relationship between amount of weapon play and concurrent aggression as well as later violent juvenile crime, while controlling for other variables possibly influencing criminal pathways. METHOD: Using longitudinal survey data collected from mothers and children (n = 2019) from age 5, with follow-up at age 15, correlations between children's play with toy weapons and juvenile criminality were examined. Multivariate regression analyses were employed to determine to what extent early childhood aggression, symptoms of attention deficit hyperactivity disorder, and symptoms of depression were antecedents of juvenile crime. RESULTS: For bivariate analysis between toy weapon play and juvenile criminality, the effect size was small and not significant. The relationship remained not significant once control variables were introduced into the model. CONCLUSIONS AND IMPLICATIONS: The act of pretending to be aggressive in childhood thus plays little role in predicting later criminality after other factors, such as gender, attention deficit hyperactivity disorder or depression, have been taken into account. Involvement in imaginative play with toy gun use in early childhood is unlikely to be useful as a risk marker for later criminal behaviour. Play fighting and war toy games may even be considered necessary components within the frame of normal development. Copyright (c) 2018 John Wiley & Sons, Ltd. PMID- 29336087 TI - New Stretching Method for Aligning Gels: Its Application to the Measurement Residual Chemical Shift Anisotropies (RCSAs) without the Need for Isotropic Shift Correction. AB - An existing gel stretching device is modified, permitting the use of organic solvents for the study of small molecules. Different from the original device, gels are stretched into 4 mm open-ended NMR tubes and then inserted into regular 5 mm NMR tubes. No open-ended tubes are inserted in the NMR probe avoiding the risk of sample leaking. It is also shown that residual chemical shift anisotropies (RCSAs) measured with the device are free of isotropic shift interferences and corrections for them are not needed during the post-acquisition data analysis. Three internal references for chemical shift were evaluated (CCl4 , CBr4 and TMS), being CCl4 the most convenient one to measure RCSAs in CDCl3 . RCSAs measured with the modified stretching device using CCl4 as the internal chemical shift reference were enough to determine the relative configuration of three small molecules with an excellent degree of configuration discrimination. PMID- 29336088 TI - Casual movement speed but not maximal locomotor capacity predicts mate searching success. AB - Maximal locomotor performance is often used as a proxy for fitness. Maximal speed may be important under high-threat conditions, such as during predator escape. However, animals do not always move at a speed that reflects their maximal physiological capacities when undisturbed. The physiological factors that determine the movement speed chosen by animals, such as minimization of energy use, may be independent from maximal performance. As a result, the casual speed at which individuals move when undisturbed in a given context may better represent an individual's motivation to move. The casual speed may therefore be a better predictor of fitness in natural contexts than maximal performance capacity. We tested the hypothesis that casual movement speed rather than maximal speed predicts fitness in the golden orb-web spider, Nephila plumipes. We measured fitness in two separate contexts, mate-searching success and the positional rank near a female. We show that casual but not maximal locomotor speed predicted both aspects of fitness. Casual speed was linearly related to maximal speed, indicating that casual speed is determined by physiological optimization. Size and metabolic scope were not related to either maximal or chosen speeds, indicating that the supply of ATP does not limit locomotor performance in this species. Overall, our results demonstrate that locomotor performance is related to fitness, but suggest that different types of performance and not necessarily maximal physiological capacities are most relevant for particular ecologically relevant tasks. PMID- 29336089 TI - Corrigendum. PMID- 29336090 TI - Microsphere Assemblies via Phosphonate Monoester Coordination Chemistry. AB - By complexing a bent phosphonate monoester ligand with cobalt(II), coupled with in situ ester hydrolysis, coordination microspheres (CALS=CALgary Sphere) are formed whereas the use of the phosphonic acid directly resulted in a sheet-like structure. Manipulation of the synthetic conditions gave spheres with different sizes, mechanical stabilities, and porosities. Time-dependent studies determined that the sphere formation likely occurred through the formation of a Co2+ and ligand chain that propagates in three dimensions through different sets of interactions. The relative rates of these assembly processes versus annealing by ester hydrolysis and metal dehydration determine the growth of the microspheres. Hardness testing by nanoindentation is carried out on the spheres and sheets. Notably, no templates or capping agents are employed, the growth of the spheres is intrinsic to the ligand geometry and the coordination chemistry of cobalt(II) and the phosphonate monoester. PMID- 29336092 TI - Development and validation of a scoring system to predict progression to acute-on chronic liver failure in patients with acute exacerbation of chronic hepatitis B. AB - AIM: The aim of this study was to develop and validate a scoring system to predict the progression to acute-on-chronic liver failure (ACLF) in patients with acute exacerbation (AE) of chronic hepatitis B (CHB). METHODS: The baseline characteristics of 474 patients with AE of CHB were retrospectively reviewed; 280 and 194 patients were randomly assigned to the derivation and validation cohorts, respectively. Univariate risk factors associated with ACLF development were entered into a multivariate logistic regression. The score model was established, and its predictive value was evaluated by the receiver operating characteristic (ROC) curve and the area under the ROC curve (AUROC). RESULTS: Hepatitis B virus (HBV) DNA, international normalized ratio (INR) of prothrombin time, and patient age were identified as independent risk factors associated with progressing to ACLF. The prediction model was established as R = -13.323 + 0.553 * log HBV-DNA (copies/mL) + 3.631* INR + 0.053 * age. The AUROCs of our prediction model were higher than those of the Model for End-stage Liver Disease (MELD) and MELD-sodium (Na) for both cohorts. At the cut-off value of -2.43, our prediction model had higher sensitivity (87.5%), specificity (73.6%), positive predictive value (23.0%), positive likelihood ratio (3.30), and lower negative likelihood ratio (0.17) in the validation cohort than those of MELD and MELD-Na. CONCLUSION: The independent risk factors associated with progressing to ACLF in patients with AE of CHB are HBV-DNA, INR, and age. Our risk prediction model is useful for predicting the development of ACLF. PMID- 29336093 TI - Heart failure with mid-range ejection fraction: causes and consequences. PMID- 29336091 TI - Drug resistance in anaplastic lymphoma kinase-rearranged lung cancer. AB - The anaplastic lymphoma kinase (ALK) gene encodes a receptor tyrosine kinase, and many kinds of ALK fusion genes have been found in a variety of carcinomas. There is almost no detectable expression of ALK in adults. However, through ALK gene rearrangement, the resultant ALK fusion protein is aberrantly overexpressed and dimerized through the oligomerization domains, such as the coiled-coil domain, in the fusion partner that induces abnormal constitutive activation of ALK tyrosine kinase. This results in dysregulated cell proliferation. ALK gene rearrangement has been observed in 3%-5% of non-small-cell lung cancers, and multiple ALK inhibitors have been developed for the treatment of ALK-positive lung cancer. Among those inhibitors, in Japan, 3 (4 in the USA) ALK tyrosine kinase inhibitors (TKIs) have been approved and are currently used in clinics. All of the currently approved ALK-TKIs have been shown to induce marked tumor regression in ALK rearranged non-small-cell lung cancer; however, tumors inevitably relapse because of acquired resistance within a few years. This review focuses on ALK-TKIs, their resistance mechanisms, and the potential therapeutic strategies to overcome resistance. PMID- 29336095 TI - Sleep hygiene, insomnia and mental health. PMID- 29336094 TI - Sympathetic neurovascular regulation during pregnancy: A longitudinal case series study. AB - NEW FINDINGS: What is the main observation in this case? The main observation of this case report is that during pregnancy there is a progressive sympatho excitation in basal conditions and under stress, which is offset by a concurrent reduction in neurovascular transduction. Strong correlations between autonomic nervous system activity and sex hormones (oestrogen and progesterone), vasopressin and aldosterone were found. What insights does it reveal? Our findings suggest that hormonal surges might be associated with central sympathetic activation. ABSTRACT: The adaptations of sympathetic nerve activity (SNA) during pregnancy remain poorly understood. An increase in blood volume, cardiac output and SNA, with a concomitant drop in total peripheral resistance (TPR), suggest that during pregnancy there is a reduced transduction of SNA into TPR. Most of these findings have originated from cross-sectional studies; thus, we conducted a longitudinal assessment of SNA and TPR in two participants. Measurements were made before pregnancy (early follicular phase), on four occasions during pregnancy and at 2 months postpartum. Mean arterial pressure and cardiac output were used to calculate TPR. The SNA was measured using microneurography (peroneal nerve). There was a gestation-dependent increase in SNA burst frequency (r2 = 0.96, P = 0.009). Neurovascular transduction, however, decreased by 53% in both women. Sympathetic hyperactivity was reversed postpartum, whereas neurovascular transduction remained lower. These longitudinal data highlight the progressive sympatho-excitation of pregnancy, which is offset by a concurrent reduction in neurovascular transduction. PMID- 29336096 TI - Fe2 Si5 N8 : Access to Open-Shell Transition-Metal Nitridosilicates. AB - Highly condensed nitridosilicates doped with Eu2+ or Ce3+ play an important role in saving energy by converting the blue light of (In,Ga)N-LEDs. Although nitridosilicates are known for great structural variety based on covalent anionic Si-N networks, elemental variety is restricted. Presenting a significant extension of the latter, this work describes a general access to open-shell transition-metal nitridosilicates. As a proof-of-principle, the first iron nitridosilicate, namely Fe2 Si5 N8 , was prepared by exchanging Ca2+ in alpha-Ca2 Si5 N8 applying a FeCl2 melt (salt metathesis). The title compound was analyzed by powder X-ray diffraction, EDX, ICP-OES, combustion analysis, TG/DSC, Mossbauer spectroscopy and magnetic susceptibility measurements. Furthermore, the structure of alpha-Ca2 Si5 N8 was determined at 1073 and 1173 K confirming the anionic network of alpha-Ca2 Si5 N8 providing possible migration pathways for the ion exchange reaction. PMID- 29336097 TI - Identification of dementia using standard clinical assessments by primary care physicians in Japan. AB - AIM: The aim of the present study was to develop a way of identifying dementia using clinical assessments made by primary care physicians under the existing medical care system in Japan. METHODS: A total of 623 people aged >=65 years underwent standard clinical assessments by primary care physicians under the long term-care insurance program to determine their grade of activities of daily living related to dementia. To examine the validity of the diagnosis, neuropsychiatrists carried out further diagnosis of dementia for all the participants. We regarded the dementia patients who received care for disability under the long-term care insurance program as having disabling dementia. RESULTS: Multivariable odds ratio (95% confidence interval) in single-grade increments of the activity was 2.1 (1.7-2.5) for dementia and 2.8 (2.2-3.4) for disabling dementia. The grades >=I and >=IIa were near the upper-left corner in the receiver operating characteristic curves. Setting the cut-off point at grades >=I or >=IIa yielded a higher integrated discrimination improvement, suggesting a major improvement in reducing misclassification by using these cut-off points. When we used grades >=I as the cut-off point, the sensitivity (95% confidence limits) was 65% (58-72%) and the specificity was 93% (91-96%) for dementia, and the corresponding values in grades >=IIa were 54% (47-62%) and 96% (94-97%). The corresponding values for disabling dementia were 83% (76-90%), 92% (90-95%), 73% (65-80%) and 96% (94-97%). CONCLUSIONS: Our findings suggest that selection of grades >=I or >=IIa as the cut-off point would reduce instances of misclassification in the identification of dementia and disabling dementia. Geriatr Gerontol Int 2018; 18: 738-744. PMID- 29336098 TI - Increasing the knowledge, identification and treatment of osteoporosis through education and shared decision-making with residents living in a retirement village community. AB - OBJECTIVE: This pilot study explored whether individual goal setting in a retirement village setting could improve strategies to strengthen bones in an ageing population and help prevent osteoporosis. METHODS: A two-phased osteoporosis prevention program was developed, piloted and evaluated involving a group education session followed by the development of individualised Bone Plans based upon personal understanding of individual fracture risk and lifestyle factors. RESULTS: A significant improvement in knowledge and understanding of factors to prevent and manage osteoporosis was achieved, and changes in lifestyle behaviours were sustained at six months. CONCLUSION: Success was due to education by specialist medical and health personnel, flexibility of goal setting, use of group sessions and location of the program within the retirement community setting. The 'Mind Your Bones' program is a feasible and acceptable way to translate preventative bone health messages to a large number of people via the retirement village network. PMID- 29336099 TI - Evolving rationale for post-mastectomy radiation. PMID- 29336100 TI - Silver(I)-Catalyzed Widely Applicable Aerobic 1,2-Diol Oxidative Cleavage. AB - The oxidative cleavage of 1,2-diols is a fundamental organic transformation. The stoichiometric oxidants that are still predominantly used for such oxidative cleavage, such as H5 IO6 , Pb(OAc)4 , and KMnO4 , generate stoichiometric hazardous waste. Herein, we describe a widely applicable and highly selective silver(I)-catalyzed oxidative cleavage of 1,2-diols that consumes atmospheric oxygen as the sole oxidant, thus serving as a potentially greener alternative to the classical transformations. PMID- 29336101 TI - Recurrence of vulval intraepithelial neoplasia following treatment with cidofovir or imiquimod: results from a multicentre, randomised, phase II trial (RT3VIN). AB - OBJECTIVE: To compare the recurrence rates after complete response to topical treatment with either cidofovir or imiquimod for vulval intraepithelial neoplasia (VIN) 3. DESIGN: A prospective, open, randomised multicentre trial. SETTING: 32 general hospitals located in Wales and England. POPULATION OR SAMPLE: 180 patients were randomised consecutively between 21 October 2009 and 11 January 2013, 89 to cidofoovir (of whom 41 completely responded to treatment) and 91 to imiquimod (of whom 42 completely responded to treatment). METHODS: After 24 weeks of treatment, complete responders were followed up at 6-monthly intervals for 24 months. At each visit, the Common Terminology Criteria for Adverse Events (CTCAE) v3.0 was assessed and any new lesions were biopsied for histology. MAIN OUTCOME MEASURES: Time to histologically confirmed disease recurrence (any grade of VIN). RESULTS: The median length of follow up was 18.4 months. At 18 months, more participants were VIN-free in the cidofovir arm: 94% (95% CI 78.2-98.5) versus 71.6% (95% CI 52.0-84.3) [univariable hazard ratio (HR) 3.46, 95% CI 0.95-12.60, P = 0.059; multivariable HR 3.53, 95% CI 0.96-12.98, P = 0.057). The number of grade 2+ events was similar between treatment arms (imiquimod: 24/42 (57%) versus cidofovir: 27/41 (66%), chi2 = 0.665, P = 0.415), with no grade 4+. CONCLUSIONS: Long-term data indicates a trend towards response being maintained for longer following treatment with cidofovir than with imiquimod, with similar low rates of adverse events for each drug. Adverse event rates indicated acceptable safety of both drugs TWEETABLE ABSTRACT: Long-term follow up in the RT3VIN trial suggests cidofovir may maintain response for longer than imiquimod. PMID- 29336102 TI - Behavioural responses of the yellow emitting annelid Tomopteris helgolandica to photic stimuli. AB - In contrast to most mesopelagic bioluminescent organisms specialised in the emission and reception of blue light, the planktonic annelid Tomopteris helgolandica produces yellow light. This unusual feature has long been suggested to serve for intraspecific communication. Yet, this virtually admitted hypothesis has never been tested. In this behavioural study of spectral colour sensitivity, we first present an illustrated repertoire of the postures and action patterns described by captive specimens. Then video tracking and motion analysis are used to quantify the behavioural responses of singled out worms to photic stimuli imitating intraspecific (yellow) or interspecific (blue) bioluminescent signals. We show the ability of T. helgolandica to react and to contrast its responses to bioluminescent-like blue and yellow light signals. In particular, the attractive effect of yellow light and the variation of angular velocity observed according to the pattern of yellow stimuli (flashes versus glows) support the intraspecific communication hypothesis. However, given the behavioural patterns of T. helgolandica, including mechanically induced light emission, the possibility that bioluminescence may be part of escape/defence responses to predation, should remain an open question. PMID- 29336103 TI - Staff preparedness for providing palliative and end-of-life care in long-term care homes: Instrument development and validation. AB - AIM: Although much attention has been on integrating the palliative care approach into services of long-term care homes for older people living with frailty and progressive diseases, little is known about the staff preparedness for these new initiatives. The present study aimed to develop and test the psychometric properties of an instrument for measuring care home staff preparedness in providing palliative and end-of-life care. METHODS: A 16-item instrument, covering perceived knowledge, skill and psychological readiness, was developed. A total of 247 staff members of different ranks from four care homes participated in the study. Exploratory factor analysis using the principal component analysis extraction method with varimax rotation was carried out for initial validation. Known group comparison was carried out to examine its discriminant validity. Reliability of the instrument was assessed based on test-retest reliability of a subsample of 20 participants and the Cronbach's alpha of the items. RESULTS: Exploratory factor analysis showed that the instrument yielded a three-factor solution, which cumulatively accounted for 68.5% of the total variance. Three subscales, namely, willingness, capability and resilience, showed high internal consistency and test-retest reliability. It also showed good discriminant validity between staff members of professional and non-professional groups. CONCLUSIONS: This is a brief, valid and reliable scale for measuring care home staff preparedness for providing palliative and end-of-life care. It can be used to identify their concerns and training needs in providing palliative and end-of life care, and as an outcome measure to evaluate the effects of interventional studies for capacity building in this regard. Geriatr Gerontol Int 2018; 18: 745 749. PMID- 29336104 TI - Early intervention in bipolar disorders: Where we are now and need to go next. PMID- 29336105 TI - Senescence chips for ultrahigh-throughput isolation and removal of senescent cells. AB - Cellular senescence plays an important role in organismal aging and age-related diseases. However, it is challenging to isolate low numbers of senescent cells from small volumes of biofluids for downstream analysis. Furthermore, there is no technology that could selectively remove senescent cells in a high-throughput manner. In this work, we developed a novel microfluidic chip platform, termed senescence chip, for ultrahigh-throughput isolation and removal of senescent cells. The core component of our senescence chip is a slanted and tunable 3D micropillar array with a variety of shutters in the vertical direction for rapid cell sieving, taking advantage of the characteristic cell size increase during cellular senescence. The 3D configuration achieves high throughput, high recovery rate, and device robustness with minimum clogging. We demonstrated proof-of principle applications in isolation and enumeration of senescent mesenchymal stem cells (MSCs) from undiluted human whole blood, and senescent cells from mouse bone marrow after total body irradiation, with the single-cell resolution. After scale-up to a multilayer and multichannel structure, our senescence chip achieved ultrahigh-throughput removal of senescent cells from human whole blood with an efficiency of over 70% at a flow rate of 300 ml/hr. Sensitivity and specificity of our senescence chips could be augmented with implementation of multiscale size separation, and identification of background white blood cells using their cell surface markers such as CD45. With the advantages of high throughput, robustness, and simplicity, our senescence chips may find wide applications and contribute to diagnosis and therapeutic targeting of cellular senescence. PMID- 29336106 TI - Best practice perioperative strategies and surgical techniques for preventing caesarean section surgical site infections: a systematic review of reviews and meta-analyses. AB - BACKGROUND: Surgical site infection (SSI) following caesarean section is a problem for women and health services. Caesarean section is a high volume procedure and the estimated incidence of SSI may be as high as 9%. OBJECTIVES: The objective of this study was to identify a suite of perioperative strategies and surgical techniques that reduce the risk of SSI following caesarean section. SEARCH STRATEGY: Six electronic databases were searched to systematically review literature reviews, systematic reviews and meta-analyses published from 2006 to 2016. Search terms included: endometritis, SSI, caesarean section, meta-analysis, review, systematic. SELECTION CRITERIA: Studies were sought in which competing perioperative strategies and surgical techniques relevant for caesarean section were identified and quantifiable infection outcomes were reported. General infection control strategies were excluded. DATA COLLECTION AND ANALYSIS: Data on study characteristics and clinical effectiveness were extracted. Quality, including bias within individual studies, was examined using a modified A Measurement Tool to Assess Systematic Reviews (AMSTAR) checklist. Recommendations for SSI risk-reducing strategies were developed using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. MAIN RESULTS: Of 466 records retrieved, 44 studies were selected for the evidence synthesis. Recommended strategies were: administer pre-incision antibiotic prophylaxis, prepare the vagina with iodine-povidone solution and spontaneous placenta removal. CONCLUSIONS: We recommend clinicians implement pre-incision antibiotic prophylaxis, vaginal preparation and spontaneous placenta removal as an infection control bundle for caesarean section. FUNDING: Queensland University of Technology. TWEETABLE ABSTRACT: Infection control for caesarean: pre-incision AB prophylaxis, vaginal prep, spontaneous placenta removal. PMID- 29336107 TI - Centrality of spirituality/religion in the culture of palliative care service in Indonesia: An ethnographic study. AB - Experiencing life-threatening illness could impact on an individual's spirituality or religious beliefs. In this paper, we report on a study which explored cultural elements that influence the provision of palliative care for people with cancer. A contemporary ethnographic approach was adopted. Observations and interviews were undertaken over 3 months with 48 participants, including palliative care staff, patients, and their families. An ethnographic data analysis framework was adopted to assist in the analysis of data at item, pattern, and structural levels. Religion was identified as central to everyday life, with all participants reporting being affiliated to particular religions and performing their religious practices in their daily lives. Patients' relatives acknowledged and addressed patients' needs for these practices. Staff provided spiritual care for the patients and their relatives in the form of religious discussion and conducting prayers together. An understanding that religious and spiritual practices are integral cultural elements and of fundamental importance to the holistic health of their patients is necessary if health-care professionals are to support patients and their families in end-of life care. PMID- 29336108 TI - Reversible CO2 Addition to a Si=O Bond and Synthesis of a Persistent SiO2 -CO2 Cycloadduct Stabilized by a Lewis Donor-Acceptor Ligand. AB - The donor-stabilized sila-beta-lactone 1 reacts with CO2 via a remarkable reversible [2+2]-cycloaddition reaction to form the spiro-cyclic silicon carbonate derivative 2. Furthermore, photolysis of 2 under pressure of CO2 affords the first persistent SiO2 -CO2 cycloadduct 3, presenting a Si2 O4 -like structure, which is stabilized by a Lewis donor-acceptor type ligand. As predicted by theoretical calculations, in marked contrast to the thermodynamically stable SiO2 dimer, the SiO2 -CO2 mixed cycloadduct 3 is labile and readily releases CO2 . PMID- 29336109 TI - Moderate hypofractionation for prostate cancer: A user's guide. AB - Three large randomised controlled trials have been published in the last year demonstrating the non-inferiority of moderate hypofractionation compared to conventional fractionation for localised prostate cancer with respect to both disease control and late toxicity at 5 years. Furthermore, no clinically significant differences in patient-reported outcomes have emerged. More mature follow-up data are now also available from phase 2 studies confirming that moderate hypofractionation is associated with low rates of significant toxicity at 10 years. Moving forward it is likely that appropriate patient selection, integration of androgen deprivation and attention to optimising technique will play a more important role than modest differences in dose-fractionation schedules. Here we briefly review the evidence, discuss issues of patient selection and provide an approach to implementing moderately hypofractionated radiation therapy for prostate cancer in clinical practice. PMID- 29336110 TI - Stabilization of the Pentazolate Anion in a Zeolitic Architecture with Na20 N60 and Na24 N60 Nanocages. AB - The experimental detection and synthesis of pentazole (HN5 ) and its anion (cyclo N5- ) have been actively pursued for the past hundred years. The synthesis of an aesthetic three-dimensional metal-pentazolate framework (denoted as MPF-1) is presented. It consists of sodium ions and cyclo-N5- anions in which the isolated cyclo-N5- anions are preternaturally stabilized in this inorganic open framework featuring two types of nanocages (Na20 N60 and Na24 N60 ) through strong metal coordination bonds. The compound MPF-1 is indefinitely stable at room temperature and exhibits high thermal stability relative to the reported cyclo-N5- salts. This finding offers a new approach to create metal-pentazolate frameworks (MPFs) and enables the future exploration of interesting pentazole chemistry and also related functional materials. PMID- 29336111 TI - Beyond mere pill taking: SMS reminders for HIV treatment adherence delivered to mobile phones of clients in a community support network in Australia. AB - SMS reminders sent to personal mobiles are increasingly used by clinical services to promote patient engagement, including adherence to antiretroviral treatment (ART) for HIV. From August to September 2015, a 6-week, randomised SMS reminder for ART adherence intervention was implemented among 98 HIV-positive clients of Australian's largest HIV charitable organisation located in Sydney. This was followed by a mixed-method evaluation, comprising a self-completed online survey and a one-to-one interview. Of the 62 survey participants, all being men, the majority were gay (85.5%) and living long-term with HIV (median year of HIV diagnosis = 1998). While everyone was on ART, a substantial proportion (n = 27, 43.5%) had interrupted treatment in the past. At the end of the intervention, based on the standard SMAQ measure, 82% had consistently adhered to ART in the previous week. While there was no statistically significant intervention effect, perceiving less stigma were independently associated with better ART adherence (adjusted odds ratio = 0.37; 95% CI 0.16-0.89; P = .026). Of the 11 interviewees, despite limited add-on effects on individual ART adherence, the campaign was well received as a unique community support service. This study underscores the essential role of empowerment through enhancing disease self-management, increasing social support and reducing stigma, particularly for long-term HIV survivors. SMS messaging, part of mHealth, delivered by community services could have broader impacts on reducing health and social inequity. PMID- 29336112 TI - Is there an association of ABO blood groups and Rhesus factor with alopecia areata? AB - BACKGROUND/OBJECTIVES: Alopecia areata (AA) is an autoimmune disease characterized by noncicatricial hair loss localized on hair, beard, mustache, eyebrow, eyelash, and sometimes on the body. Although etiopathogenesis is not fully understood, many studies show remarkable associations between various diseases and ABO blood groups. However, there is no study with AA and blood groups. METHODS: Healthy people and patients with AA were included in this study. A total of 155 patients with AA and 299 healthy controls were included in the study. RESULTS: ABO blood group distribution in patients with AA and distribution of healthy donors were similar. However, Rhesus factor positivity in the AA group was significantly higher than in healthy donors. The relationship between stress and AA was high as known. But, ABO blood group and Rhesus factor were not in a significant connection with stress. CONCLUSION: We conclude that there was no association between ABO blood group and AA, but the observed distribution of Rhesus blood group differed slightly but significantly from that of the healthy population. The result of the study shows a small but statistically significant difference in the Rh blood group between patients with AA and the healthy population blood groups. This result is important because it suggests that genetic factors may influence the development of AA. The role of blood groups in the development of AA remains to be determined. We believe that the studies which will be carried out in other centers with wider series will be more valuable to support this hypothesis. PMID- 29336113 TI - Comments on Famulski and Halloran AJT i-IFTA letter. PMID- 29336114 TI - Nucleolar and spindle-associated protein 1 is a tumor grade correlated prognosis marker for glioma patients. AB - AIMS: Despite therapeutic advances in glioma management including surgery, radiation, and chemotherapy, the improvement of patient outcome is far from satisfactory. Nucleolar and spindle-associated protein 1 (NUSAP1) is an important functional protein during mitosis, and its abnormal expression is implicated in progression of different types of tumors. However, the role of NUSAP1 in gliomas remains unclear. METHODS: NUSAP1 expression in gliomas with different grades was investigated based on GEO glioma datasets. Kaplan-Meier survival analysis was used to evaluate its prognostic significance. In vitro assays were also performed to evaluate effects of NUSAP1 on malignant phenotypes of glioma cells by silencing NUSAP1. RESULTS: NUSAP1 expression was correlated not only with glioma grade but also with prognosis of glioma patients. NUSAP1 depletion suppressed proliferation of U251 cells by inducing cell cycle arrest at G2/M phase and apoptosis. NUSAP1 depletion rendered U251 cells impaired migratory ability as well. CONCLUSION: NUSAP1 is a potential prognosis marker for glioma patients and therapeutic strategies targeting NUSAP1 might hold promise in improving glioma treatment. PMID- 29336115 TI - Insight into the inhibitor discrimination by FLT3 F691L. AB - Fms-like tyrosine kinase 3 (FLT3) belongs to the receptor tyrosine kinase family and expressed in hematopoietic progenitor cells. FLT3 gene mutations are reported in ~30% of acute myeloid leukemia cases. FLT3 kinase domain mutation F691L is one of the common causes of acquired resistance to the FLT3 inhibitors including quizartinib. MZH29 and crenolanib were previously reported to inhibit FLT3 F691L. However, crenolanib was reported for the moderate inhibition. We found that Glu661and Asp829 were the most significant residues to target the FLT3 F691L which contribute most significantly to the binding energy with MZH29 and crenolanib. These interactions were found absent with quizartinib. Further free energy landscape analysis revealed that FLT3 F691L bound to MZH29 and crenolanib was more stable as compared to quizartinib. PMID- 29336116 TI - The retina of the collared peccary (Pecari tajacu): structure and function. AB - OBJECTIVE: To study retinal morphology and function in the collared peccary, an ungulate species distantly related to the domestic pig. ANIMAL STUDIES: Twenty captive peccaries anesthetized for routine health examinations. Procedures No abnormalities were noted on a complete ophthalmic examination. Fundi were examined ophthalmoscopically and photographed. The eyes of an individual that died of unrelated, nonocular reasons were studied histologically and by immunohistochemistry. Scotopic, mixed rod-cone, and photopic electroretinography (ERG) responses were recorded using the 'QuickRetCheck' (n = 6) and 'Dog diagnostic' (n = 5) protocols of the Handheld Multispecies ERG (HMsERG). RESULTS: The fundus of the peccary is atapetal, with varying amounts of pigmentation seen ophthalmoscopically, and histologically in the retinal pigment epithelium (RPE) and choroid. The retina is holangiotic with dichotomously branching vessels. These cross, and apparently loop on, the optic disk surface, but no venous circle was seen. Immunohistochemistry suggests a high concentration of cone photoreceptors with red/green cones being more abundant than blue cones. Rod ERG responses were very low with no evident dark adaptation. Mixed rod-cone and cone ERG response amplitudes were low compared to those of domestic pigs, but quite similar to those of minipigs. CONCLUSIONS: To the best of our knowledge, this study describes the collared peccary's retinal features for the first time. A comparison of our findings with data from other ungulate species shows some similarities between the peccary and pig retinas. Further studies are warranted to determine whether the peccary can be used alongside the pig as an animal model in retinal studies. PMID- 29336117 TI - Prussian Blue-Derived Iron Phosphide Nanoparticles in a Porous Graphene Aerogel as Efficient Electrocatalyst for Hydrogen Evolution Reaction. AB - Tailoring of new hydrogen evolution reaction (HER) electrocatalyst with earth abundant elements is important for large scale water splitting and hydrogen production. In this work, we present a simple synthetic method for incorporating iron phosphide (FeP) particles into three-dimensional (3D) porous graphene aerogel (GA) structure. The FeP formed in porous 3D GA (FeP/GA) is derived from electroactive Fe hexacyanoferrate (FeHCF). The advantage of incorporating FeP, in the porous 3D graphene network enables high accessibility for HER. As synthesized FeP/GA catalyst shows good electrocatalytic activity for HER in both acidic and alkaline solutions. The developed method can be useful for synthesizing metal hexacyanoferrate derived mono/bimetal phosphide catalyst in porous 3D graphene aerogels. PMID- 29336118 TI - Resveratrol Potently Counteracts Quercetin Starvation-Induced Autophagy and Sensitizes HepG2 Cancer Cells to Apoptosis. AB - SCOPE: Resveratrol (RSV) has been described as a potent antioxidant, antisteatotic, and antitumor compound, and it has also been identified as a potent autophagy inducer. On the other hand, quercetin (QCT) is a dietary flavonoid with known antitumor, anti-inflammatory, and antidiabetic effects. Additionally, QCT increases autophagy. To study the hypothetical synergistic effect of both compounds, we test the combined effect of QCT and RSV on the autophagy process in HepG2 cells. METHODS AND RESULTS: Autophagy is studied by western blotting, real-time RT-PCR, and cellular staining. Our results clearly indicate a bifunctional molecular effect of RSV. Both polyphenols are individually able to promote autophagy. Strikingly, when RSV is combined with QCT, it promotes a potent reduction of QCT-induced autophagy and influences proapoptotic signaling. CONCLUSION: RSV acts differentially on the autophagic process depending on the cellular energetic state. We further characterize the molecular mechanisms related to this effect, and we observe that AMP-activated protein kinase (AMPK) phosphorylation, heme oxygenase 1 (HO-1) downregulation, lysosomal membrane permeabilization (LMP), and Zinc (Zn2+ ) dynamics could be important modulators of such RSV-related effects and could globally represent a promising strategy to sensitize cancer cells to QCT treatment. PMID- 29336119 TI - Evaluations of UltraiQ software for objective ultrasound image quality assessment using images from a commercial scanner. AB - We evaluated a commercially available software package that uses B-mode images to semi-automatically measure quantitative metrics of ultrasound image quality, such as contrast response, depth of penetration (DOP), and spatial resolution (lateral, axial, and elevational). Since measurement of elevational resolution is not a part of the software package, we achieved it by acquiring phantom images with transducers tilted at 45 degrees relative to the phantom. Each measurement was assessed in terms of measurement stability, sensitivity, repeatability, and semi-automated measurement success rate. All assessments were performed on a GE Logiq E9 ultrasound system with linear (9L or 11L), curved (C1-5), and sector (S1 5) transducers, using a CIRS model 040GSE phantom. In stability tests, the measurements of contrast, DOP, and spatial resolution remained within a +/-10% variation threshold in 90%, 100%, and 69% of cases, respectively. In sensitivity tests, contrast, DOP, and spatial resolution measurements followed the expected behavior in 100%, 100%, and 72% of cases, respectively. In repeatability testing, intra- and inter-individual coefficients of variations were equal to or less than 3.2%, 1.3%, and 4.4% for contrast, DOP, and spatial resolution (lateral and axial), respectively. The coefficients of variation corresponding to the elevational resolution test were all within 9.5%. Overall, in our assessment, the evaluated package performed well for objective and quantitative assessment of the above-mentioned image qualities under well-controlled acquisition conditions. We are finding it to be useful for various clinical ultrasound applications including performance comparison between scanners from different vendors. PMID- 29336120 TI - The cognitive profile of Sotos syndrome. AB - Sotos syndrome is a congenital overgrowth disorder, associated with intellectual disability. Previous research suggests that Sotos syndrome may be associated with relative strength in verbal ability and relative weakness in non-verbal reasoning ability but this has not been explicitly assessed. To date, the cognitive profile of Sotos syndrome is unknown. Cognitive abilities of a large and representative sample of individuals with Sotos syndrome (N = 52) were assessed using the British Ability Scales (BAS3). The majority of participants had intellectual disability or borderline intellectual functioning. The cluster score profile analysis revealed a consistent verbal ability > non-verbal reasoning ability profile. Four specific criteria were proposed as the Sotos syndrome cognitive profile (SSCP): verbal ability > non-verbal reasoning ability; quantitative reasoning T-score or matrices T-score <20th percentile; quantitative reasoning T score < mean T-score; recognition of designs T-score or recognition of pictures T score > mean T-score. Of the 35 participants included in the profile analysis, 28 met all four SSCP criteria, yielding a sensitivity of 0.8. The sensitivity of each of the SSCP criteria was >0.9. Individuals with Sotos syndrome display a clear and consistent cognitive profile, characterized by relative strength in verbal ability and visuospatial memory but relative weakness in non-verbal reasoning ability and quantitative reasoning. This has important implications for the education of individuals with Sotos syndrome. PMID- 29336121 TI - Inter- and intra-operator reliability in patient-specific template positioning for total hip arthroplasty. A cadaver study. AB - BACKGROUND: The implantation of the acetabular cup essentially determines the clinical outcome of total hip arthroplasty. To address this issue, the aim of this study was to build patient-specific instruments (PSIs) with various reference surfaces, followed by in vitro investigations to examine the inter- and intra-operator reliability as well as the overall precision of these patient specific templates. METHODS: Seven human hemi-pelvis specimens were used for this study. After a CT scan, PSIs with different imprint heights were created. The overall precision of the templates and the inter- and intra-operator reliabilities were calculated. RESULTS: Strong differences in precision between the PSI designs could be observed. The desired orientation of the acetabular cup could be adjusted with a precision of up to 1.55 degrees . CONCLUSION: Based on our results, we believe that the application of the PSI-based acetabular cup positioning in total hip arthroplasty procedures can potentially increase the precision of cup placement. PMID- 29336122 TI - LETTER TO EDITOR. PMID- 29336123 TI - Balance Assessment in Deaf Children and Teenagers Prior to and Post Capoeira Practice through the Berg Balance Scale. AB - INTRODUCTION: Hearing loss changes the functionality and body structure a disability that limits activity and restricts the participation of the individual in situations of daily life. It is believed that capoeira can help people with visual disabilities to minimize these deficits. BSE is a low specificity scale that evaluates objectively and functionally aspects of balance and risk of falls in the elderly and children, including the effect of environment on balance function. OBJECTIVE: The objective of the research is to analyze deaf children and adolescents prior to and post-practice of capoeira using the Berg Balance Scale (BBS). METHODS: Quantitative, clinical and observational studies. Twenty five deaf children between 10 and 16 years old of both genders were assessed. BBS was applied in two stages: before starting capoeira and after 6 months of training. The one-hour classes were held once a week for quantitative evaluation purposes. The subjects were divided and evaluated in two groups (10-13 years old and 14-16 years old). RESULTS: There was a significant statistical difference in BBS scores. The general group and the group of 10-13 years old (p = 0.0251) showed an increase in scores after practicing capoeira (p = 0.0039). There were no statistically significant differences in the group from 14 to 16 years of age (p = 0.0504). CONCLUSION: Using the Berg Balance Scale, it was possible to observe an improvement in the balance of the group of children and adolescents who practiced capoeira, and consequently, a decrease in the risk of falling. PMID- 29336124 TI - Masking Treatment and its Effect on Tinnitus Parameters. AB - OBJECTIVE: Tinnitus is described as the perception of sound without any external acoustic stimulation. Any pathology of auditory pathways or any system of the human body may result with tinnitus. The pathophysiology of tinnitus accompanying the disorders of auditory system is not fully understood and there is not any particular effective treatment method has been specified. Tinnitus masking therapy has been reported as an effective treatment modality in the treatment of tinnitus. In this study, the results of tinnitus masking treatment on the parameters were evaluated prospectively. PATIENTS AND METHODS: Patients with normal physical examination was enrolled in the study. Blood tests (complete blood count, biochemical analysis of lipid profile, and thyroid hormones), pure tone audiometry, tympanometric measurement of the middle ear pressure and stapedial reflexes were performed, Sixty six patients with normal results of blood tests and normal hearing thresholds with type A tympanogram were included. Tinnitus sufferers questionnaires (socio-demographics, clinical information, Tinnitus Handicap Inventory (THI), Beck Depression Inventory (BDI) was filled, audiological tests were performed, tinnitus parameters (frequency, intensity, minimal masking levels, residual inhibition) were measured. After four weeks of the treatment the questionnaires were repeated. RESULTS: Masking treatment for tinnitus patients resulted with significant decrease in Tinnitus Handicap Inventory and VAS scores. After four weeks of the masking treatment the questionnaire was repeated. Twenty patients did not respond to treatment. CONCLUSION: Masking therapy is one of the most effective methods of treatment for tinnitus patients. Masking therapy, that is not invasive and cost-effective has an important place in the treatment of tinnitus. Especially in a short time provides a significant reduction in tinnitus parameters. PMID- 29336125 TI - Association of Chronic Subjective Tinnitus with Neuro- Cognitive Performance. AB - INTRODUCTION: Chronic subjective tinnitus is associated with cognitive disruptions affecting perception, thinking, language, reasoning, problem solving, memory, visual tasks (reading) and attention. OBJECTIVE: To evaluate existence of any association between tinnitus parameters and neuropsychological performance to explain cognitive processing. MATERIALS AND METHODS: Study design was prospective, consisting 25 patients with idiopathic chronic subjective tinnitus and gave informed consent before planning their treatment. Neuropsychological profile included (i) performance on verbal information, comprehension, arithmetic and digit span; (ii) non-verbal performance for visual pattern completion analogies; (iii) memory performance for long-term, recent, delayed-recall, immediate-recall, verbal-retention, visualretention, visual recognition; (iv) reception, interpretation and execution for visual motor gestalt. Correlation between tinnitus onset duration/ loudness perception with neuropsychological profile was assessed by calculating Spearman's coefficient. RESULTS: Findings suggest that tinnitus may interfere with cognitive processing especially performance on digit span, verbal comprehension, mental balance, attention & concentration, immediate recall, visual recognition and visual-motor gestalt subtests. Negative correlation between neurocognitive tasks with tinnitus loudness and onset duration indicated their association. Positive correlation between tinnitus and visual-motor gestalt performance indicated the brain dysfunction. CONCLUSION: Tinnitus association with non-auditory processing of verbal, visual and visuo-spatial information suggested neuroplastic changes that need to be targeted in cognitive rehabilitation. PMID- 29336126 TI - Effects of Smoking on Eustachian Tube and Hearing. AB - OBJECTIVE: The purpose of this study was to evaluate the effect of tobacco use on the Eustachian tube and inner ear function. STUDY DESIGN: Case-control study. SUBJECTS AND SETTINGS: Thirty-one nonsmoking volunteers and 34 smoking subjects recruited in an University Hospital, submitted to an audiological evaluation including pure tone audiometry, basal tympanogram, stapedial reflexes analysis, and nine-step eustachian tube (ET) function test. RESULTS: Pure Tone Average (PTA) threshold at all frequencies tested was 12.5 dB in smokers and 3.7 in nonsmoking subjects. Nine smokers (27%) presented some degree of hearing loss versus none in the nonsmoker group. Linear regression analysis showed a higher degree of sensorineural hearing loss with age in smokers. Among the smokers, 20 subjects (59%) presented an impaired tubal function for the nine-step inflation/deflation tympanometric test, while only 6 (19%) subjects in the group of nonsmokers showed a tubal dysfunction. CONCLUSION: Tobacco use may reduce the ability to hear, mainly causing a sensorineural hearing loss for higher frequencies. We also found the presence of a high number of smokers suffering from tubal dysfunction. This has an important clinical relevance, not only because smoking increases the incidence of middle ear diseases, but also because tubal dysfunction may cause nonspecific symptoms characterised by ear fullness and difficulties in middle ear equalisation. PMID- 29336127 TI - Popularity and Harms of Aural Foreign Bodies: A Descriptive Study of Patients in Baqiyatallah University Hospital, Tehran, Iran. AB - OBJECTIVE: To evaluate the prevalence of external ear complications among Iranian aural foreign body users attending to otolaryngology clinic of our hospital. METHODS: In this cross-sectional study patients attending to Otolaryngology clinics of Baqiyatallah hospital were enrolled regardless of their age, gender and reason of attending. Patients between 15 and 60 years of age were included in the present study. Those with positive history of chronic ear diseases, ear surgery, congenital ear disorders, trauma to ear or head and neck region or shock wave trauma were excluded from the study. Demographic information as well as data on chief complaint, educational level, frequency and type of used foreign body and findings of physical examination and Otoscopy by a single otolaryngologist were recorded in a predesigned checklist. RESULTS: Eventually 362 patients (232 male and 130 female) with a mean age of 40.32 +/- 16.90 years underwent analysis. Of all patients 244 (67.2%) were using a kind of aural foreign body frequently and Cotton bud was the most popular (63.5%) used foreign body among patients. Drying ear canal was the most common (54.9%) reason of using AFBs among study individuals followed by itching (29.5%) and pyorrhea (11.06%). Also 11 (4.5%) patients were using AFBs as a habit with no specific reason. Itching was the most prevalent symptom reported by both aural foreign body users (78%) and non-users (45.5%); however it was significantly higher among AFB users (p = 0.026). Also hearing loss was significantly more reported by AFB users (p = 0.033). A majority of patients had normal physical examination in both AFB users and non-users group. Inflammation of ear canal was significantly more detected in AFB users (p = 0.004). In addition, rate of right ear wax impaction was higher among AFB users (p = 0.016). CONCLUSION: In conclusion we realized that 67.2% of patients attending to Otolaryngology clinic of our hospital were using a kind of aural foreign bodies and itching was the most common chief complaint of these patients. PMID- 29336128 TI - The Effect of PRP-enriched Gelfoam on Chronic Tympanic Membrane Perforation: A Double-blind Randomized Clinical Trial. AB - OBJECTIVE: To evaluate the effect of PRP-enriched gelfoam on the healing of chronic TM perforation in comparison with gelfoam alone. METHODS: In this double blind randomized clinical trial Patients with chronic tympanic membrane were randomly allocated to two groups; intervention group underwent tympanoplasty with platelet rich plasma (PRP)- enriched gel foams and control group underwent operation with conventional gel foams alone. Patients information was recorded 4 and 12 months after surgery. RESULTS: Eventually 24 patients (12 males and 12 females) with a mean age of 43.33 +/- 12.34 years in intervention and 41.33 +/- 10.02 years in control group underwent analysis (p = 0.667). Complete TM healing was seen in 8 (66.67%) patients in intervention group and 3 (25%) patients in control group three months after intervention (p = 0.031, OR = 5.98). CONCLUSION: Addition of PRP to conventional gelfoams used in TM perforation repair increases the complete healing rate of TM perforation with less morbidity and complications. PMID- 29336129 TI - Somatic Tinnitus. AB - Modulation of tinnitus characteristics such as pitch and loudness has been extensively described following movements of the head, neck and limbs, vertical or horizontal eye gaze, pressure on myofascial trigger points, cutaneous stimulation of the hands, electrical stimulation of the median nerve, and transcranial direct current stimulation. Modulation of tinnitus follows complex interactions between auditory and somatosensory afferents and can be favored by underlying somatic disorders. When tinnitus appears to be preceded or strictly linked to a somatic disorder, and therefore related to problems of the musculoskeletal system rather than of the ear, it is defined somatic tinnitus. A correct diagnosis and treatment of somatic disorders underlying tinnitus play a central role for a correct management of somatic tinnitus. However, the identification of somatic tinnitus may be complex in some cases. In this paper, after a general review of the current evidences for somatic tinnitus available in the literature, we present and discuss some cases of patients in which somatic modulation of tinnitus played a role-although different from case to case-in their tinnitus, describing the diagnostic and therapeutic approaches followed in each individual case and the results obtained, also highlighting unexpected findings and pitfalls that may be encountered when approaching somatic tinnitus patients. PMID- 29336130 TI - Comparison of Three Types of Mesenchymal Stem Cells (Bone Marrow, Adipose Tissue, and Umbilical Cord-Derived) as Potential Sources for Inner Ear Regeneration. AB - In this review, we compared the potential of mesenchymal stem cells derived from bone marrow, adipose tissue and umbilical cord as suitable sources for regeneration of inner ear hair cells and auditory neurons. Our intensive literature search indicates that stem cells in some of adult mammalian tissues, such as bone marrow, can generate new cells under physiological and pathological conditions. Among various types of stem cells, bone marrow-derived mesenchymal stem cells are one of the most promising candidates for cell replacement therapy. Mesenchymal stem cells have been reported to invade the damaged area, contribute to the structural reorganization of the damaged cochlea and improve incomplete hearing recovery. We suggest that bone marrow-derived mesenchymal stem cells would be more beneficial than other mesenchymal stem cells. PMID- 29336131 TI - Vestibular Schwannoma and Ipsilateral Endolymphatic Hydrops: An Unusual Association. AB - Vestibular schwannoma and endolymphatic hydrops are two conditions that may present with similar audio-vestibular symptoms. The association of the two in the same patient represents an unusual finding that may lead clinicians to errors and delays in diagnosis and clinical management of affected subjects. We discuss the case of a patient with an intrameatal vestibular schwannoma reporting symptoms suggestive for ipsilateral endolymphatic hydrops. The patient presented with fluctuating hearing loss, tinnitus, and acute rotatory vertigo episodes, and underwent a full audiological evaluation and imaging of the brain with contrast enhanced Magnetic Resonance Imaging. Clinical audio-vestibular and radiological examination confirmed the presence of coexisting vestibular schwannoma and endolymphatic hydrops. Hydrops was treated pharmacologically; vestibular schwannoma was monitored over time with a wait and scan protocol through conventional MRI. The association of vestibular schwannoma and endolymphatic hydrops is rare, but represents a possible finding in clinical practice. It is therefore recommended investigating the presence of inner ear disorders in patients with vestibular schwannoma and, similarly, to exclude the presence of this condition in patients with symptoms typical of inner ear disorders. PMID- 29336132 TI - Auditory System Synchronization and Cochlear Function in Patients with Normal Hearing With Tinnitus: Comparison of Multiple Feature with Longer Duration and Single Feature with Shorter Duration Tinnitus. AB - OBJECTIVE: To observe cochlear and brainstem function in normal hearing ears with tinnitus using DPOAE and ABR audiometry. DESIGN: Case-control study. SAMPLE SIZE: Included 60 normal hearing male patients with age less than 45 years; control group consisted of 30 patients without tinnitus and the study group consisted of those with unilateral tinnitus of at least 6 month duration. Pure tone audiometry, tinnitus matching (pitch & loudness), DPOAE (SNR & Amplitude) and ABR results of absolute latency of wave I, III and V, with IPL difference of I-III, III-V & I-V, and ILD-V were investigated. RESULTS: SNR and amplitude value of DPOAE were significantly different between tinnitus ears and without tinnitus ears. Abnormal prolonged absolute latencies of peak I, III, V suggesting presence of hearing loss above 8 kHz and significant difference of only IPL III-V in the tinnitus ear suggesting of upper brain steam lesion in tinnitus patients were found. The IPL of III-V and ILD-V findings were significantly different in longer duration with multiple features (more than one type of pitch) than shorter duration with single feature tinnitus. Thus whole brainstem function has significant relationship with the presence of tinnitus, longer duration with multiple nature of tinnitus perception. CONCLUSION: Abnormal OAE and ABR results were present in patients with tinnitus. It was more prominent in patients with longer duration with multiple features of tinnitus perception. PMID- 29336133 TI - Effects of Tinnitus Retraining Therapy with Different Colours of Sound. AB - BACKGROUND: In Tinnitus Retraining Therapy (TRT) sound stimulation is conventionally performed with low-level broadband sound generators; since the patient has to receive it for many hours in a day, it is important that the sound is tolerable and agreeable to the patient. A clinical trial was undertaken to evaluate the effect of different colour sound generators on tinnitus. The colour of a sound refers to the power spectrum of the signal. The sound generators used in this study provide the option to choose the preferred or most acceptable sound among white, red and pink noise. METHODS AND FINDINGS: Changes in Tinnitus Handicap Inventory and Numeric Rating Scales were measured in 20 patients after 3 and 6 months following the fitting of ear-level multi-colour sound generators. The outcomes were compared to a similar group of 20 participants receiving the same management except through conventional white noise sound generators. Significant improvements were obtained in both groups following 3 and 6 months after fitting. No significant difference was found between the two groups using one or the other type of sound. Two thirds of the patient preferred white noise, making it the most appealing amongst the options. The rest of the patients indicated red noise as the preferred sound given that it reminded them of soothing noises like shower or rainfall. No one chose pink noise. CONCLUSIONS: TRT with different colour sound generators is effective in reducing the discomfort caused by tinnitus in normal hearing patients. Enabling the patients to choose their preferred sound after short trial periods achieved higher patient satisfaction. This practice could help tailor individualized treatment for each patient. PMID- 29336134 TI - Treatment of Tinnitus: A Scoping Review. AB - BACKGROUND: Tinnitus is a perception of an auditory sensation without the presence of an external sound. It has devastating impact on the quality of life and psychosocial aspect of the sufferer. Mechanisms of tinnitus not clear; however, its management include counselling, hearing aids, tinnitus masking, relaxation therapy, cognitive behaviour therapy and tinnitus retraining therapy. OBJECTIVE: To conduct a scoping review to explore the role of counselling, hearing aids, tinnitus masking, relaxation therapy, cognitive-behavioural therapy and tinnitus retraining therapy in India. To also provide an overview of efficacy of these approaches in tinnitus management. RESEARCH DESIGN: Scoping review. STUDY SAMPLE: Experimental studies, follow-up assessments, and reviews assessing tinnitus treatment approaches were identified as a result of an electronic database met search. RESULTS: The evidence suggests that all tinnitus management programs have their unique benefits in the treatment of tinnitus. Given the confounding variables that include length of therapy, tinnitus severity and subject population, the overall level of evidence is equivocal. Nonetheless, the efficacy of CBT appears reasonably established and combined approach (masking + counselling + attention diversion) appears to be most promising for audiologists for future tinnitus management. A common ground of therapeutic elements was established and evidence was found to be robust enough to guide clinical practice. CONCLUSION: The use of more robust methodology with well-defined control groups, as well as randomization of clinical trials in future studies would increase the quality of evidence in the study of tinnitus management. CLINICAL RECOMMENDATION: Combined therapies (masking + counselling + attention diversion) appear more appropriate in the treatment of tinnitus as the evidence is not sufficient to support a specific treatment method. PMID- 29336135 TI - A Randomized, Placebo-Controlled, Double-Blind, Parallel Groups Study Evaluating the Performance and Safety of a Steady State Coherent Biomodulator Patch in the Treatment of Subjective Tinnitus. AB - OBJECTIVE: The objectives of this study were to evaluate the performance and safety of an innovative passive light photon driven microscopic biomodulator patch as an alternative medical device for tinnitus relief. MATERIALS AND METHODS: Eighty-two (82) patients were randomized to receive either an active (biomodulator) patch or a placebo patch, for a 3-week treatment period. Patch performance (evaluated with questionnaires related to tinnitus and quality-of life) and safety were assessed after 3 weeks of treatment (Week 3) and at a follow-up visit 4-weeks after end of treatment (Week 7). RESULTS: The biomodulator patch was safe and well-tolerated and was efficacious, with significant difference (p < 0.05) between the groups at Week 7; active patch had 30% responders compared to 10% for placebo, measured as a decrease from baseline in at least 2 points in tinnitus annoyance visual analogue scale (VAS, 0-10). Tinnitus handicap inventory (THI, 0-100) improved by mean -16 points significantly (p = 0.0005) for the active responder group, but with no statistically significant changes for the placebo group or between the groups. Well-being questionnaire also improved for the active responder group, but not statistically significant. The placebo responder group did not improve in well being. Other tinnitus related symptoms did not show significant changes. There was no statistically significant difference in performance between the active (biomodulator) and placebo groups directly at the end of treatment (Week 3). CONCLUSION: In a cost-risk-benefit rationale according to this study it can be reasonable to recommend the biomodulator patch for treatment of tinnitus. Improvements were shown at Week 7 (4 weeks after the end of treatment period). PMID- 29336136 TI - International Clinical Protocol on Vestibular Disorders (Dizziness). AB - 26-28 May at 43 Congress of Neurootological and Equilibriometric Society (Budapest, Hungary) International Clinical Protocol on Vestibular Disorders (Dizziness) being discussed and accepted as Consensus Document. Cochrane reports estimates that dizziness has prevalence of 22.9% in the last 12 months and an incidence of 3.1%. Only 1.8% of adults consulted a physician in the last 12 months. Cochrane reviews suggest that the evidence base for dizziness evaluation is weak, thus necessitates the creation of evidence-based document. Protocol is based at the new concept of vestibular system, which involves the vestibular peripheral sensors, space orientation tetrad, vestibular presentations in the brain cortex and vestibular effectory projections in the brain. Labyrinth consists of sensors, for which six modalities are adequate: 1. acceleration, 2. gravitation, 3. low frequency whole-body vibration, 4. Infrasound, 5. magnetic impulse, 6. metabolic changes. Vestibular system from rhomboid fosse gets the inputs from visual, acoustic, somatosensory organs, integrating them and forming space perception and orientation. Interaction with space is realized through sensory, motor, vegetative and limbic projections. So, vestibular disturbances may manifest as paropsia, tinnitus, numbness. Vestibular evoked potentials (not VEMP) and craniocorpography have highest sensitivity (90% and more). As vestibular dysfunction has recurrent character patients need monitoring. PMID- 29336137 TI - In Vitro Differentiation of Human Bone Marrow Mesenchymal Stem Cells to Hair Cells Using Growth Factors. AB - OBJECTIVE: In this study, we attempted to differentiated human bone marrow derived mesenchymal stem cells (hBMSCs) to auditory hair cells using growth factors. METHODS: Retinoic acid (RA), basic fibroblast growth factor (bFGF), and epidermal growth factor (EGF) were added to hBMSCs cell culture medium. The cells were evaluated morphologically and the expression of SOX2, POU4F3, MYO7A, and Calretinin at mRNA level and ATOH1 mRNA and protein expression. RESULTS: After treatment with the growth factors, the morphology of the cells did not change, but evaluation of gene expression at the mRNA level increased the expression of the ATOH1, SOX2, and POU4F3 markers. Growth factors increased the expression of ATOH1 at the protein level. The expression of calretinin showed decreased and MYO7A no significant change in expression. CONCLUSION: hBMSCs have the potential to differentiate to hair cell-like using the RA, bFGF, and EGF. PMID- 29336138 TI - Psycho acoustical Measures in Individuals with Congenital Visual Impairment. AB - INTRODUCTION: In congenital visual impaired individuals one modality is impaired (visual modality) this impairment is compensated by other sensory modalities. There is evidence that visual impaired performed better in different auditory task like localization, auditory memory, verbal memory, auditory attention, and other behavioural tasks when compare to normal sighted individuals. OBJECTIVE: The current study was aimed to compare the temporal resolution, frequency resolution and speech perception in noise ability in individuals with congenital visual impaired and normal sighted. METHODS: Temporal resolution, frequency resolution, and speech perception in noise were measured using MDT, GDT, DDT, SRDT, and SNR50 respectively. Twelve congenital visual impaired participants with age range of 18 to 40 years were taken and equal in number with normal sighted participants. All the participants had normal hearing sensitivity with normal middle ear functioning. RESULTS: Individual with visual impairment showed superior threshold in MDT, SRDT and SNR50 as compared to normal sighted individuals. This may be due to complexity of the tasks; MDT, SRDT and SNR50 are complex tasks than GDT and DDT. CONCLUSION: Visual impairment showed superior performance in auditory processing and speech perception with complex auditory perceptual tasks. PMID- 29336139 TI - Smart Self-Assembled Nanosystem Based on Water-Soluble Pillararene and Rare-Earth Doped Upconversion Nanoparticles for pH-Responsive Drug Delivery. AB - Exploring novel drug delivery systems with good stability and new structure to integrate pillararene and upconversion nanoparticles (UCNPs) into one system continues to be an important challenge. Herein, we report a novel preparation of a supramolecular upconversion nanosystem via the host-guest complexation based on carboxylate-based pillar[5]arene (WP5) and 15-carboxy-N,N,N-trialkylpentadecan-1 ammonium bromide (1)-functionalized UCNPs to produce WP5?1-UCNPs that can be loaded with the chemotherapeutic drug doxorubicin (DOX). Importantly, the WP5 on the surface of the drug-loaded nanosystem can be efficiently protonated under acidic conditions, resulting in the collapse of the nanosystem and drug release. Moreover, cellular uptake confirms that the nanosystem can enter human cervical cancer (HeLa) cells, resulting in drug accumulation in the cells. More importantly, cytotoxicity experiments demonstrated the excellent biocompatibility of WP5?1-UCNPs without loading DOX and that the nanosystem DOX-WP5?1-UCNPs exhibited an ability of killing HeLa cells effectively. We also investigated magnetic resonance imaging and upconversion luminescence imaging, which may be employed as visual imaging agents in cancer diagnosis and treatment. Thus, in the present work, we show a simple yet powerful strategy to combine UCNPs and pillar[5]arene to produce a unified nanosystem for dual-mode bioimaging-guided therapeutic applications. PMID- 29336140 TI - Synthesis of Cisplatin(IV) Prodrug-Tethered CuFeS2 Nanoparticles in Tumor Targeted Chemotherapy and Photothermal Therapy. AB - In this study, for the first time, CuFeS2 nanocrystals were successfully prepared through a facile noninjection-based synthetic strategy, by reacting Cu and Fe precursors with dodecanethiol in a 1-octadecene solvent. This one-pot noninjection strategy features easy handling, large-scale production, and high synthetic reproducibility. Following hyaluronic acid (HA) encapsulation, CuFeS2 nanocrystals coated with HA (CuFeS2@HA) not only readily dispersed in water and showed improved biocompatibility but also possessed a tumor-specific targeting ability of cancer cells bearing the cluster determinant 44 (CD44) receptors. The encapsulated CuFeS2@HA showed broad optical absorbance from the visible to the near-infrared (NIR) region and high photothermal conversion efficiencies of about 74.2%. They can, therefore, be utilized for the photothermal ablation of cancer cells with NIR light irradiation. In addition, toxicity studies in vitro (B16F1 and HeLa) and in vivo (zebrafish embryos), as well as in vitro blood compatibility studies, indicated that CuFeS2@HA show low cytotoxicity at the doses required for photothermal therapy. More importantly, CuFeS2@HA can be used as delivery vehicles for chemotherapy cisplatin(IV) prodrug forming CuFeS2@HA Pt(IV). Their release profile revealed pH- and glutathione-mediated drug release from CuFeS2@HA-Pt(IV), which may minimize the side effects of the drug to normal tissues during therapy. Subsequent in vitro experiments confirmed that the use of CuFeS2@HA-Pt(IV) provides an enhanced and synergistic therapeutic effect compared to that from the use of either chemotherapy or photothermal therapy alone. PMID- 29336141 TI - Label-Free Optical Biodetection of Pathogen Virulence Factors in Complex Media Using Microtoroids with Multifunctional Surface Functionality. AB - Early detection of pathogens or their virulence factors in complex media has a key role in early diagnosis and treatment of many diseases. Nanomolar and selective detection of Exotoxin A, which is a virulence factor secreted from Pseudomonas aeruginosa in the sputum of Cystic Fibrosis (CF) patients, can pave the way for early diagnosis of P. aeruginosa infections. In this study, we conducted a preliminary study to demonstrate the feasibility of optical biodetection of P. aeruginosa Exotoxin A in a diluted artificial sputum mimicking the CF respiratory environment. Our surface engineering approach provides an effective biointerface enabling highly selective detection of the Exotoxin A molecules in the complex media using monoclonal anti-Exotoxin A functionalized microtoroids. The highly resilient microtoroid surface toward other constituents of the sputum provides Exotoxin A detection ability in the complex media by reproducible measurements. In this study, the limit-of-detection of Exotoxin A in the complex media is calculated as 2.45 nM. PMID- 29336142 TI - Smart Dual Quenching Strategy Enhances the Detection Sensitivity of Intracellular Furin. AB - Development of sensitive fluorescence "Turn-On" strategies for imaging enzyme activity in living cells is of disease-diagnostic importance but remains challenging. Herein, by employing a click condensation reaction and rational design of a single quenched probe Cys(StBu)-Lys(Gly-Lys(DABCYL)-Gly-Gly-Arg-Arg Val-Arg-Gly-FITC)-CBT (1), we developed a "smart" dual quenching strategy and applied it to detect intracellular furin activity with enhanced sensitivity. At physiological conditions, 1 was subjected to reduction-controlled condensation reaction to form 1-NPs and its fluorescence intensity further dropped to 1/2.8 of its original. Upon furin cleavage in vitro, the dual quenched 1-NPs had fluorescence "Turn-On" contrast 11-fold more than that of single quenched control probe FITC-Gly-Arg-Val-Arg-Arg-Gly-Gly-Lys(DABCYL)-Gly-OH (1-P). Live cell imaging results indicated that 1 showed fluorescence "Turn-On" contrast 6.3-fold of that of 1-P for sensing intracellular furin activity. We envision that, by replacing the RVRR substrate with other enzyme-cleavable ones, our versatile "smart" dual quenching strategy could be easily adjusted for the detection (or imaging) of other intracellular enzymes' activity with enhanced sensitivity. PMID- 29336143 TI - Water-Soluble Fluorescent Probe with Dual Mitochondria/Lysosome Targetability for Selective Superoxide Detection in Live Cells and in Zebrafish Embryos. AB - A novel water-soluble fluorescein-based fluorescent probe for superoxide detection was developed. The probe is fairly stable under neutral and acidic conditions. It can be used to detect superoxide both in solution with the detection limit of 2.2 MUM and in living cells. Cell imaging experiments indicated that such a probe displayed good cell penetration and O2*- could be detected with PMA-stimulated HepG2 cells in both mitochondria and lysosome. Such a probe is the first dual mitochondria- and lysosome- targetable fluorescent chemodosimeter. Additionally, O2*- in intact live zebrafish embryos was successfully visualized under PMA-stimulated conditions, and the possible detection mechanism was studied as well. PMID- 29336144 TI - Nanostructured Peptidotoxins as Natural Pro-Oxidants Induced Cancer Cell Death via Amplification of Oxidative Stress. AB - Melittin (Mel), one of the host defense peptides derived from the venom of honeybees, demonstrates substantial anticancer properties, which is attributed to augmenting reactive oxygen species (ROS) generation. However, little has been reported on its pro-oxidation capacity in cancer oxidation therapy. In this study, an ROS amplifying nanodevice was fabricated through direct complexation of two natural pro-oxidants, Mel and condensed epigallocatechin gallate (pEGCG). The obtained nanocomplex (NC) was further covered with phenylboronic acid derivatized hyaluronic acid (pHA) through the ROS-responsive boronate ester coordination bond to produce pHA-NC. Upon undergoing receptor-mediated endocytosis into cancer cells, the inner cores of pHA-NC will be partially uncovered once pHA corona is degraded by hyaluronidase and will then escape from the lysosome by virtue of cytolytic Mel. The elevated ROS level in the tumor cytoplasm can disrupt the boronate ester bond to facilitate drug release. Both Mel and pEGCG could synergistically amplify oxidative stress and prolong ROS retention in cancer cells, leading to enhanced anticancer efficacy. This ROS cascade amplifier based on selective coordination bond and inherent pro-oxidation properties of natural ingredients could detect and elevate intracellular ROS signals, potentiating to move the tumor away from its homeostasis and make the tumor vulnerable. Compared to previously reported chemosynthetic pro-oxidants, the ROS self-sufficient system, fully composed of natural medicine, from this study provides a new insight in developing cancer oxidation therapy. PMID- 29336145 TI - T1-Mediated Nanosensor for Immunoassay Based on an Activatable MnO2 Nanoassembly. AB - Current magnetic relaxation switching (MRS) sensors for detection of trace targets in complex samples still suffer from limitations in terms of relatively low sensitivity and poor stability. To meet this challenge, we develop a longitudinal relaxation time (T1)-based nanosensor by using Mn2+ released from the reduction of a MnO2 nanoassembly that can induce the change of T1, and thus can greatly improve the sensitivity and overcome the "hook effect" of conventional MRS. Through the specific interaction between antigen and the antibody-functionalized MnO2 nanoassembly, the T1 signal of Mn2+ released from the nanoassembly is quantitatively determined by the antigen, which allows for highly sensitive and straightforward detection of targets. This approach broadens the applicability of magnetic biosensors and has great potential for applications in early diagnosis of disease biomarkers. PMID- 29336146 TI - Coordination-Triggered Hierarchical Folate/Zinc Supramolecular Hydrogels Leading to Printable Biomaterials. AB - Printable hydrogels desired in bioengineering have extremely high demands on biocompatibility and mechanic strength, which can hardly be achieved in conventional hydrogels made with biopolymers. Here, we show that on employment of the strategy of coordination-triggered hierarchical self-assembly of naturally occurring small-molecule folic acid, supramolecular hydrogels with robust mechanical elastic modulus comparable to synthetic double-network polymer gels can be made at concentrations below 1%. A sequence of hierarchical steps are involved in the formation of this extraordinary hydrogel: petrin rings on folate form tetramers through hydrogen bonding, tetramers stack into nanofibers by pi-pi stacking, and zinc ions cross-link the nanofibers into larger-scale fibrils and further cross-link the fibril network to gel water. These supramolecular qualities endow the hydrogel with shear-thinning and instant healing ability, which makes the robust gel injectable and printable into various three dimensional structures. Owing to the excellent biocompatibility, the gel can support cells three-dimensionally and can be used as an ideal carrier for imaging agent (Gd3+), as well as chemodrugs. In combination with its easy formation and abundant sources, this newly discovered metallo-folate supramolecular hydrogel is promising in various bioengineering technological applications. PMID- 29336147 TI - Urolithins Attenuate LPS-Induced Neuroinflammation in BV2Microglia via MAPK, Akt, and NF-kappaB Signaling Pathways. AB - Emerging data suggest that urolithins, gut microbiota metabolites of ellagitannins, contribute toward multiple health benefits attributed to ellagitannin-rich foods, including walnuts, red raspberry, strawberry, and pomegranate. However, there is limited data on whether the potential neuroprotective effects of these ellagitannin-rich foods are mediated by urolithins. Herein, we evaluated the potential mechanisms of antineuroinflammatory effects of urolithins (urolithins A, B, and C; 8-methyl-O urolithin A; and 8,9-dimethyl-O-urolithin C) in BV2 murine microglia in vitro. Nitrite analysis and qRT-PCR suggested that urolithins A and B reduced NO levels and suppressed mRNA levels of pro-inflammatory genes of TNF-alpha, IL-6, IL 1beta, iNOS, and COX-2 in LPS-treated microglia. Western blot revealed that urolithins A and B decreased phosphorylation levels of Erk1/2, p38 MAPK, and Akt, prevented IkappaB-alpha phosphorylation and degradation, and inhibited NF-kappaB p65 subunit phosphorylation and nuclear translocation in LPS-stimulated microglia. Our results indicated that urolithins A and B attenuated LPS-induced inflammation in BV2 microglia, which may be mediated by inhibiting NF-kappaB, MAPKs (p38 and Erk1/2), and Akt signaling pathway activation. The antineuroinflammatory activities of urolithins support their role in the potential neuroprotective effects reported for ellagitannin-rich foods warranting further in vivo studies on these ellagitannin gut microbial derived metabolites. PMID- 29336148 TI - Logic Catalytic Interconversion of G-Molecular Hydrogel. AB - By incorporating hemin into G-quadruplex (G4) during cation-templated self assembly between guanosine and KB(OH)4, we have constructed an artificial enzyme hydrogel (AEH)-based system for the highly sensitive and selective detection of Pb2+. The sensing strategy is based on a Pb2+-induced decrease in AEH activity. Because of the higher efficiency of Pb2+ for stabilizing G4 compared with K+, the Pb2+ ions substitute K+ and trigger hemin release from G4, thus giving rise to a conformational interconversion accompanied by the loss of enzyme activity. The Pb2+-induced catalytic interconversion endows the AEH-based system with high sensitivity and selectivity for detecting Pb2+. As a result, the AEH-based system shows an excellent response for Pb2+ in the range from 1 pM to 50 nM with a limit of detection of ~0.32 pM, which is much lower than that of the previously reported G4-DNAzyme. We also demonstrate that this AEH-based system exhibits high selectivity toward Pb2+ over other metal ions. Furthermore, two two-input INHIBIT logic gates have been constructed via switching of the catalytic interconversion induced by K+ and Pb2+ or K+ and pH. Given its versatility, this AEH-based system provides a novel platform for sensing and biomolecular computation. PMID- 29336149 TI - Molecular Imprinting Based Hybrid Ratiometric Fluorescence Sensor for the Visual Determination of Bovine Hemoglobin. AB - We describe a simple and effective strategy to construct a molecular imprinting ratiometric fluorescence sensor (MIR sensor) for the visual detection of bovine hemoglobin (BHb) used as a model protein. The sensor was prepared by simply mixing the solution of green and red CdTe quantum dots (QDs), which were embedded in core-shell structured molecularly imprinted polymers and silica nanoparticles, respectively. The resultant hybrid MIR sensor can selectively bind with BHb and thus quench the fluorescence of the green QDs, while the red QDs wrapped with silica are insensitive to BHb with the fluorescence intensity unchanged. As a result, a continuous obvious fluorescence color change from green to red can be observed by naked eyes, with the detection limit of 9.6 nM. Moreover, the MIR sensor was successfully applied to determine BHb in bovine urine samples with satisfactory recoveries at three spiking levels ranging from 95.7 to 101.5%, indicating great potential application for detecting BHb in real samples. This strategy of using different fluorescence emission materials incorporated to construct a ratiometric fluorescence sensor is reasonable and convenient, which can be extended to the preparation of other ratiometric fluorescence systems for targeted analytes. PMID- 29336150 TI - Chemical Exchange Saturation Transfer in Chemical Reactions: A Mechanistic Tool for NMR Detection and Characterization of Transient Intermediates. AB - The low sensitivity of NMR and transient key intermediates below detection limit are the central problems studying reaction mechanisms by NMR. Sensitivity can be enhanced by hyperpolarization techniques such as dynamic nuclear polarization or the incorporation/interaction of special hyperpolarized molecules. However, all of these techniques require special equipment, are restricted to selective reactions, or undesirably influence the reaction pathways. Here, we apply the chemical exchange saturation transfer (CEST) technique for the first time to NMR detect and characterize previously unobserved transient reaction intermediates in organocatalysis. The higher sensitivity of CEST and chemical equilibria present in the reaction pathway are exploited to access population and kinetics information on low populated intermediates. The potential of the method is demonstrated on the proline-catalyzed enamine formation for unprecedented in situ detection of a DPU stabilized zwitterionic iminium species, the elusive key intermediate between enamine and oxazolidinones. The quantitative analysis of CEST data at 250 K revealed the population ratio of [Z-iminium]/[exo oxazolidinone] 0.02, relative free energy +8.1 kJ/mol (calculated +7.3 kJ/mol), and free energy barrier of +45.9 kJ/mol (DeltaG?calc.(268 K) = +42.2 kJ/mol) for Z-iminium -> exo-oxazolidinone. The findings underpin the iminium ion participation in enamine formation pathway corroborating our earlier theoretical prediction and help in better understanding. The reliability of CEST is validated using 1D EXSY-build-up techniques at low temperature (213 K). The CEST method thus serves as a new tool for mechanistic investigations in organocatalysis to access key information, such as chemical shifts, populations, and reaction kinetics of intermediates below the standard NMR detection limit. PMID- 29336152 TI - Mutation of Phenylalanine-223 to Leucine Enhances Transformation of Benzo[a]pyrene by Ring-Hydroxylating Dioxygenase of Sphingobium sp. FB3 by increasing Accessibility of the Catalytic Site. AB - Burning of agricultural biomass generates polycyclic aromatic hydrocarbons (PAHs) including the carcinogen benzo[a]pyrene, of which the catabolism is primarily initiated by a ring-hydroxylating dioxygenase (RHD). This study explores catalytic site accessibility and its role in preferential catabolism of some PAHs over others. The genes flnA1f, flnA2f, flnA3, and flnA4, encoding the oxygenase alpha and beta subunits, ferredoxin, and ferredoxin reductase, respectively, of the RHD enzyme complex (FlnA) were cloned from Sphingobium sp. FB3 and coexpressed in E. coli BL21. The FlnA effectively transformed fluoranthene but not benzo[a]pyrene. Substitution of the bulky phenylalanine-223 by leucine reduces the steric constraint in the substrate entrance to make the catalytic site of FlnA more accessible to large substrates, as visualized by 3D modeling, and allows the FlnA mutant to efficiently transform benzo[a]pyrene. Accessibility of the catalytic site to PAHs is a mechanism of RHD substrate specificity. The results shed light on why some PAHs are more recalcitrant than others. PMID- 29336151 TI - Ultrarobust Biochips with Metal-Organic Framework Coating for Point-of-Care Diagnosis. AB - Most biosensors relying on antibodies as recognition elements fail in harsh environment conditions such as elevated temperatures, organic solvents, or proteases because of antibody denaturation, and require strict storage conditions with defined shelf life, thus limiting their applications in point-of-care and resource-limited settings. Here, a metal-organic framework (MOF) encapsulation is utilized to preserve the biofunctionality of antibodies conjugated to nanotransducers. This study investigates several parameters of MOF coating (including growth time, surface morphology, thickness, and precursor concentrations) that determine the preservation efficacy against different protein denaturing conditions in both dry and wet environments. A plasmonic biosensor based on gold nanorods as the nanotransducers is employed as a model biodiagnostic platform. The preservation efficacy attained through MOF encapsulation is compared to two other commonly employed materials (sucrose and silk fibroin). The results show that MOF coating outperforms sucrose and silk fibroin coatings under several harsh conditions including high temperature (80 degrees C), dimethylformamide, and protease solution, owing to complete encapsulation, stability in wet environment and ease of removal at point-of-use by the MOF. We believe this study will broaden the applicability of this universal approach for preserving different types of on-chip biodiagnostic reagents and biosensors/bioassays, thus extending the benefits of advanced diagnostic technologies in resource-limited settings. PMID- 29336153 TI - Genetic Algorithm Based Design and Experimental Characterization of a Highly Thermostable Metalloprotein. AB - The development of thermostable and solvent-tolerant metalloproteins is a long sought goal for many applications in synthetic biology and biotechnology. In this work, we were able to engineer a highly thermostable and organic solvent-stable metallo variant of the B1 domain of protein G (GB1) with a tetrahedral zinc binding site reminiscent of the one of thermolysin. Promising candidates were designed computationally by applying a protocol based on classical and first principles molecular dynamics simulations in combination with genetic algorithm optimization. The most promising of the computationally predicted mutants was expressed and structurally characterized and yielded a highly thermostable protein. The experimental results thus confirm the predictive power of the applied computational protein engineering approach for the de novo design of highly stable metalloproteins. PMID- 29336154 TI - Methods for Determining Cell Wall-Bound Phenolics in Maize Stem Tissues. AB - We compared two methods with different sample pretreatment, hydrolysis, and separation procedures to extract cell wall-bound phenolics. The samples were pith and rind tissues from six maize inbred lines reportedly containing different levels of cell wall-bound phenolics. In method 1, pretreated samples were extracted with a C18 solid-phase extraction cartridge, and it took 6 days to complete. In method 2, phenolics were extracted from crude samples with ethyl acetate, it took 2 days to complete, and the cost per sample was reduced more than 60%. Both methods extracted more 4-coumarate than ferulate. Overall, method 1 yielded more 4-coumarate, while method 2 yielded more ferulate. The lack of a genotype * method interaction and significant correlations between the results obtained using the two methods indicate that both methods are reliable for use in large-scale plant breeding programs. Method 2, scaled, is proposed for general plant biology research. PMID- 29336155 TI - Highly Bendable Flexible Perovskite Solar Cells on a Nanoscale Surface Oxide Layer of Titanium Metal Plates. AB - We report highly bendable and efficient perovskite solar cells (PSCs) that use thermally oxidized layer of Ti metal plate as an electron transport layer (ETL). The power conversion efficiency (PCE) of flexible PSCs reaches 14.9% with a short circuit current density (Jsc) of 17.9 mA/cm2, open-circuit voltage (Voc) of 1.09, and fill factor (ff) of 0.74. Moreover, the Ti metal-based PSCs exhibit a superior fatigue resistance over indium tin oxide/poly(ethylene terephthalate) substrate. Flexible PSCs maintain 100% of their initial PCE even after PSCs are bent 1000 times at a bending radius of 4 mm. This excellent performance of flexible PSCs is due to high crystalline quality and low oxygen vacancy concentration of TiO2 layer. The concentration of oxygen vacancies in the oxidized Ti metal surface controls the electric function of TiO2 as ETL of PSCs. A decrease in the oxygen vacancy concentration of the TiO2 layer is critical to improving the electron collection efficiency of the ETL. Our results suggest that Ti metal-based PSCs possess excellent mechanical properties, which can be applied to the renewable energy source for flexible electronics. PMID- 29336156 TI - Infrared Dielectric Screening Determines the Low Exciton Binding Energy of Metal Halide Perovskites. AB - The performance of lead-halide perovskites in optoelectronic devices is due to a unique combination of factors, including highly efficient generation, transport, and collection of photogenerated charge carriers. The mechanism behind efficient charge generation in lead-halide perovskites is still largely unknown. Here, we investigate the factors that influence the exciton binding energy (Eb) in a series of metal-halide perovskites using accurate first-principles calculations based on solution of the Bethe-Salpeter equation, coupled to ab initio molecular dynamics simulations. We find that Eb is strongly modulated by screening from low energy phonons, which account for a factor ~2 Eb reduction, while dynamic disorder and rotational motion of the organic cations play a minor role. We calculate Eb = 15 meV for MAPbI3, in excellent agreement with recent experimental estimates. We then explore how different material combinations (e.g., replacing Pb -> Pb:Sn-> Sn; and MA -> FA -> Cs) may lead to different Eb values and highlight the mechanisms underlying Eb tuning. PMID- 29336157 TI - Glycerol Hydrogen-Bonding Network Dominates Structure and Collective Dynamics in a Deep Eutectic Solvent. AB - The deep eutectic solvent glyceline formed by choline chloride and glycerol in 1:2 molar ratio is much less viscous compared to glycerol, which facilitates its use in many applications where high viscosity is undesirable. Despite the large difference in viscosity, we have found that the structural network of glyceline is completely defined by its glycerol constituent, which exhibits complex microscopic dynamic behavior, as expected from a highly correlated hydrogen bonding network. Choline ions occupy interstitial voids in the glycerol network and show little structural or dynamic correlations with glycerol molecules. Despite the known higher long-range diffusivity of the smaller glycerol species in glyceline, in applications where localized dynamics is essential (e.g., in microporous media), the local transport and dynamic properties must be dominated by the relatively loosely bound choline ions. PMID- 29336159 TI - Ligand-Controlled Copper(I)-Catalyzed Cross-Coupling of Secondary and Primary Alcohols to alpha-Alkylated Ketones, Pyridines, and Quinolines. AB - One hexanuclear Cu(I) cluster of 4,6-dimethylpyrimidine-2-thiolate efficiently catalyzes the dehydrogenative cross-coupling of secondary and primary alcohols to alpha-alkylated ketones with high selectivity. This transformation proceeds through a one-pot sequence of dehydrogenation of alcohols, condensation of aldehydes and ketones, hydrogenation of the resulting alpha,beta-unsaturated ketones, and dehydrogenation of the alpha-alkylated alcohols to generate alpha alkylated ketones. This catalytic system also displays high activity for the annulation reaction of secondary alcohols with gamma-amino- and 2-aminobenzyl alcohols to yield pyridines and quinolines, respectively. PMID- 29336158 TI - Chromosome Gene Orientation Inversion Networks (GOINs) of Plasmodium Proteome. AB - The spatial distribution of genes in chromosomes seems not to be random. For instance, only 10% of genes are transcribed from bidirectional promoters in humans, and many more are organized into larger clusters. This raises intriguing questions previously asked by different authors. We would like to add a few more questions in this context, related to gene orientation inversions. Does gene orientation (inversion) follow a random pattern? Is it relevant to biological activity somehow? We define a new kind of network coined as the gene orientation inversion network (GOIN). GOIN's complex network encodes short- and long-range patterns of inversion of the orientation of pairs of gene in the chromosome. We selected Plasmodium falciparum as a case of study due to the high relevance of this parasite to public health (causal agent of malaria). We constructed here for the first time all of the GOINs for the genome of this parasite. These networks have an average of 383 nodes (genes in one chromosome) and 1314 links (pairs of gene with inverse orientation). We calculated node centralities and other parameters of these networks. These numerical parameters were used to study different properties of gene inversion patterns, for example, distribution, local communities, similarity to Erdos-Renyi random networks, randomness, and so on. We find clues that seem to indicate that gene orientation inversion does not follow a random pattern. We noted that some gene communities in the GOINs tend to group genes encoding for RIFIN-related proteins in the proteome of the parasite. RIFIN like proteins are a second family of clonally variant proteins expressed on the surface of red cells infected with Plasmodium falciparum. Consequently, we used these centralities as input of machine learning (ML) models to predict the RIFIN like activity of 5365 proteins in the proteome of Plasmodium sp. The best linear ML model found discriminates RIFIN-like from other proteins with sensitivity and specificity 70-80% in training and external validation series. All of these results may point to a possible biological relevance of gene orientation inversion not directly dependent on genetic sequence information. This work opens the gate to the use of GOINs as a tool for the study of the structure of chromosomes and the study of protein function in proteome research. PMID- 29336160 TI - Visible-Light Photoredox/Nickel Dual Catalysis for the Cross-Coupling of Sulfinic Acid Salts with Aryl Iodides. AB - An efficient cross-coupling of sodium or lithium sulfinates with aryl iodides, using a combination of nickel and photoredox catalysis, is described. The dual catalyst system enables a versatile synthesis of aryl sulfones at room temperature in good yields and displays a broad functional group compatibility. The potential utility of this method in the late-stage diversification of complex molecules and in the conversion of organolithium reagents and sulfur dioxide into sulfones is demonstrated. PMID- 29336161 TI - Stereoselective Synthesis of 1,4,5-Tri-cis-guaiane Sesquiterpene: First Total Synthesis of (-)-Dendroside C Aglycon. AB - The first total synthesis of (-)-dendroside C aglycon, consisting of a 1,4,5-tri cis-guaiane skeleton, from a versatile hydroazulene intermediate has been accomplished. The key features of the syntheses include the stereoselective preparation of the unusual cis-hydroazulene core via a sequence of a unique Dieckmann condensation of the bicyclic lactone system, which was concisely prepared by the tandem conjugate addition and intramolecular allylic alkylation of a butenolide precursor, and construction of the characteristic tricyclic skeleton by a carbene-mediated cyclopropanation. PMID- 29336162 TI - Regioselective Synthesis of alpha- and gamma-Amino Quinolinyl Phosphonamides Using N-Heterocyclic Phosphines (NHPs). AB - A regioselective phosphonylation of quinolines for the synthesis of alpha-amino quinolinyl phosphonamides and gamma-amino quinolinyl phosphonamides has been developed under mild reaction conditions. An NHP-thiourea enables selective synthesis of alpha-amino quinolinyl phosphonamides by a Reissert-type reaction, and an NHP-tosylamide affords gamma-amino quinolinyl phosphonamides via a 1,4 conjugate addition reaction. The corresponding amino quinolinyl phosphonate adducts were obtained in moderate to excellent yields (up to 99% yield) and regioselectivities (up to 99:1) with good functional group tolerance. PMID- 29336163 TI - Construction of Polycyclic Indole Derivatives via Multiple Aryne Reactions with Azaheptafulvenes. AB - An efficient [8 + 2]/aryl-ene tandem reaction between azaheptafulvenes and arynes has been developed, leading to the formation of cyclohepta[b]indoles in a single step with good yield. In addition, employment of excess arynes provides a [8 + 2]/aryl-ene /[6 + 2] tandem reaction to synthesize polycyclic oxacyclohepta[b]indoles. This is the first time that azaheptafulvenes have been employed in tandem reactions with arynes. PMID- 29336164 TI - Management of Takayasu arteritis. PMID- 29336165 TI - Development of novel delivery system for nanoencapsulation of catalase: formulation, characterization, and in vivo evaluation using oxidative skin injury model. AB - One of the main challenges for successful pharmaceutical application of Catalase (CAT) is maintaining its stability. Physical immobilization of CAT through nano encapsulation was proposed to resolve this challenge. CAT encapsulating niosomes (e-CAT) were prepared using Brij(r) 30, 52, 76, 92, and 97 in the presence of cholesterol (Ch) by thin film hydration method. Niosomes were characterized for encapsulation efficiency % (EE), size, poly-dispersity index (PI), and morphology. Kinetic parameters, pH optimum, thermal stability, and reusability of CAT were determined. The influence of optimized e-CAT dispersion onto thermally injured rat skin was evaluated. Results revealed that encapsulation enhanced CAT catalytic efficiency (Vmax/Km). Free CAT and e-CAT had pH optimum at 7.0. e-CAT exhibited improved thermal stability where it retained 50% residual activity at 60 degrees C. Free CAT lost its activity after three consecutive operational cycles; however, e-CAT retained 60% of its initial activity following 12 cycles. After 24 h of topical application on thermal injury, a significant difference in lesion size was observed with e-CAT compared with the control group. Based on these encouraging results, CAT immobilization demonstrated a promising novel delivery system that enhances its operational stability. In addition, nano encapsulated CAT can be anticipated to be beneficial in skin oxidative injury. PMID- 29336166 TI - Optimizing outcomes in EGFR mutation-positive NSCLC: which tyrosine kinase inhibitor and when? AB - Despite the efficacy of standard-of-care EGFR tyrosine kinase inhibitors (TKIs), erlotinib, gefitinib and afatinib, in EGFR mutation-positive non-small-cell lung cancer, resistance develops, most commonly due to the T790M mutation. Osimertinib showed clinical activity in the treatment of T790M-positive disease following progression on a first-line TKI, and is approved in this setting. Recently, osimertinib improved efficacy versus first-generation TKIs (erlotinib and gefitinib) in the first-line setting. Multiple factors can influence first-line treatment decisions, including subsequent therapy options, presence of brain metastases and tolerability, all of which should be considered in the long-term treatment plan. Further research into treatment sequencing is also needed, to optimize outcomes in EGFR mutation-positive non-small-cell lung cancer. PMID- 29336167 TI - Does personal experience of dementia change attitudes? The Bristol and South Gloucestershire survey of dementia attitudes. AB - Background It is unclear how attitudes towards people with dementia are formed and whether, for instance, increased contact with people with dementia, either through work or personal experience alters attitudes. This study used a validated questionnaire (the Approaches to Dementia Questionnaire) to examine whether having experience of dementia (either as a result of work, or by being affected by dementia) is associated with differences in attitudes towards dementia. Methods A modified version of the Approaches to Dementia Questionnaire was completed by 2201 participants, either online or in written form. Participants also recorded their age, gender and ethnicity as well as whether they worked with people with dementia or had been personally affected by dementia. Results Increased contact with people with dementia was associated with increases in both total Approaches to Dementia Questionnaire scores and across both sub-scales reflecting more positive person-centred attitudes toward dementia. The highest levels of increase were found amongst non-white participants. Conclusions This study is, we believe, the first attempt to look systematically at whether greater contact with people with dementia is associated with changes in attitudes. The results strongly support the contention that increased contact with people with dementia leads to more person-centred attitudes, and by inference, less stigmatising views. PMID- 29336168 TI - Dementia in Eastern Mediterranean countries: A systematic review. AB - Globally, there is an increase in the older population, whose lives are affected by local cultural norms. In Eastern Mediterranean countries, dementia is conventionally hidden from view with few dedicated services or recognition for diagnosis. The aim of this systematic review is to explore the limited literature on dementia and cognitive impairment among older people in Eastern Mediterranean countries to present an evaluation of current practices and to consolidate knowledge for future planning. Thirty-three studies were identified for inclusion in the review, and four themes were apparent. Firstly, prevalence, comorbidity and gender: In Eastern Mediterranean countries, many studies identify that the prevalence of dementia is high. As is the case elsewhere, many older adults in Eastern Mediterranean countries have at least one coexisting long-term condition, and some experience low life-satisfaction. Secondly, culture: In Eastern Mediterranean countries, the older adult is highly respected, and placement outside of the family home is considered an abandonment of family duty. The term dementia carries stigma, and it is widely believed that dementia is caused by 'fate'. Thirdly, recognition and tools: There is a lack of verified assessment instruments to assess for dementia. Despite concerns about the cultural appropriateness of the Mini-Mental State Exam, particularly for people who have low literacy levels, and low literacy being the norm in Eastern Mediterranean countries, the Mini-Mental State Examination is the main assessment instrument. Translation and transition of non-Arabic assessment instruments and tools with psychometric properties presents a challenge for clinicians. Finally, workforce issues: health care workers lack knowledge about dementia, as dementia care is a relatively recent addition to the nursing and medical syllabi. While there were some inconsistencies in the papers published, many of the articles call for increasing educational programmes and health and social care policies to promote improved and practical gerontological nursing and medicine. Health care professionals need education about sociocultural, religious, and language needs to deliver improved culturally sensitive care. PMID- 29336169 TI - Bone metastasis target redox-responsive micell for the treatment of lung cancer bone metastasis and anti-bone resorption. AB - In order to inhibit the growth of lung cancer bone metastasis and reduce the bone resorption at bone metastasis sites, a bone metastasis target micelle DOX@DBMs ALN was prepared. The size and the zeta potential of DOX@DBNs-ALN were about 60 nm and -15 mV, respectively. DOX@DBMs-ALN exhibited high binding affinity with hydroxyapatite and released DOX in redox-responsive manner. DOX@DBMs-ALN was effectively up taken by A549 cells and delivered DOX to the nucleus of A549 cells, which resulted in strong cytotoxicity on A549 cells. The in vivo experimental results indicated that DOX@DBMs-ALN specifically delivered DOX to bone metastasis site and obviously prolonged the retention time of DOX in bone metastasis site. Moreover, DOX@DBMs-ALN not only significantly inhibited the growth of bone metastasis tumour but also obviously reduced the bone resorption at bone metastasis sites without causing marked systemic toxicity. Thus, DOX@DBMs ALN has great potential in the treatment of lung cancer bone metastasis. PMID- 29336170 TI - Nanoparticles for treatment of atherosclerosis: challenges of plasmonic photothermal therapy in translational studies. PMID- 29336171 TI - Phenolic composition, antioxidant and antinociceptive activities of Syringa vulgaris L. bark and leaf extracts. AB - Metabolite profile, antioxidant and antinociceptive activities of Syringa vulgaris bark and leaf methanolic extracts were investigated. By means of HPLC DAD-ESI-TOF and HPLC-DAD-ESI-MS/MS, a total of 33 phenolics were identified, including 15 secoiridoids, 6 phenylpropanoids, 3 flavonoids, 3 lignans and 6 low molecular weight phenols. Validated quantitative analysis show that syringin (2.52%) and rutin (1.13%) are the main phenolic compounds in bark and leaf, respectively. Notable radical scavenging and antinociceptive activities of the bark and leaf extracts were confirmed by in vitro DPPH? and ABTS?+ assays and by in vivo hot-plate method in mice, respectively. Our results could lay the scientific basic of future clinical perspectives of lilac bark and leaf. PMID- 29336172 TI - Correction to: Erci et al., Green synthesis of silver nanoparticles using Thymbra spicata L. var. spicata (zahter) aqueous leaf extract and evaluation of their morphology-dependent antibacterial and cytotoxic activity. PMID- 29336173 TI - Genome analysis and clinical implications of the bacterial communities in early biofilm formation on dental implants restored with titanium or zirconia abutments. AB - This cross-sectional study aimed to identify and quantify up to 42 target species colonizing the early biofilm of dental implants restored with titanium or zirconia abutments. A total of 720 samples from 20 healthy individuals were investigated. Biofilm samples were collected from the peri-implant sulci, inner parts of implants, abutment surfaces and prosthetic crowns over a functioning period of 30 days. Checkerboard DNA-DNA hybridization was used for microbial detection and quantitation. Clinical characteristics (probing depth, bleeding on probing, clinical attachment level and marginal bone loss) were also investigated during the monitoring period. Genome counts were low at the implant loading time point for both the abutment materials, and increased over time. Both the titanium and the zirconia groups presented similar microbial counts and diversity over time, and the microbiota was very similar to that colonizing the remaining teeth. Clinical findings were consistent with a healthy condition with no significant difference regarding marginal bone loss between the two materials. PMID- 29336174 TI - Modularising outpatient care delivery: A mixed methods case study at a Finnish University Hospital. AB - BACKGROUND: Modularisation is a potential means to develop health care delivery by combining standardisation and customisation. However, little is known about the effects of modularisation on hospital care. The objective was to analyse how modularisation may change and support health care delivery in specialised hospital care. METHODS: A mixed methods case study methodology was applied using both qualitative and quantitative data, including interviews, field notes, documents, service usage data, bed count and personnel resource data. Data from a reference hospital's unit were used to understand the context and development of care delivery in general. RESULTS: The following outcome themes were identified from the interviews: balance between demand and supply; support in shift from inpatient to outpatient care; shorter treatment times and improved management of service production. Modularisation supported the shift from inpatient towards outpatient care. Changes in resource efficiency measures were both positive and negative; the number of patients per personnel decreased, while the number of visits per personnel and the bed utilisation rate increased. CONCLUSIONS: Modularisation may support health care providers in classifying patients and delivering services according to patients' needs. However, as the findings are based on a single university hospital case study, more research is needed. PMID- 29336175 TI - A new monoterpene from the poisonous mushroom Trogia venenata, which has caused Sudden Unexpected Death in Yunnan province, China. AB - A new monoterpene, 6,7,8-trihydroxy-2,6-dimethyloctanoic acid (1), and a known sesquiterpene, beta-caryophyllene 4R,5R-oxide (2), as well as four known ergosta steroids, 5alpha,8alpha-epidioxyergosta-6,22-dien-3beta-y1 linoleate (3), 3-O beta-D-glucopyranosyl-22E,24R-5alpha,8alpha-epidioxyergosta-6,22-dien (4), 5alpha,8alpha-epidioxy-(22E,24R)-ergosta-6,22-dien-3beta-ol (5) and (22E,24R) ergosta-7,22-dien-3beta-ol (6), were isolated from the fruiting bodies of the mushroom Trogia venenata. The structures of these compounds were identified by the analysis of spectral data. All of the compounds were isolated from this mushroom for the first time. PMID- 29336176 TI - Replenishing the damaged heart with oxygen by nature-inspired photosynthesis. PMID- 29336177 TI - In vivo assessment of a nanofibrous silk tube as nerve guide for sciatic nerve regeneration. AB - A nanofibrous silk nerve conduit has been evaluated for its efficiency based on the promotion of peripheral nerve regeneration in rats. The designed tubes with or without Schwann cells were implanted into a 10 mm gap in the sciatic nerves of the rats. Four months after the surgery, the regenerated nerves were monitored and evaluated by macroscopic assessments and histology. The results demonstrated that the nanofibrous grafts, especially in the presence of Schwann cells, enabled reconstruction of the rat sciatic nerve trunk with a restoration of nerve continuity and formation of nerve fibres with myelination. Histological data demonstrated the presence of Schwann and glial cells in regenerated nerves. This study strongly supports the feasibility of using artificial nerve grafts for peripheral nerve regeneration by bridging large defects in a rat model. PMID- 29336178 TI - Evaluation of take-home exposure to asbestos from handling asbestos-contaminated worker clothing following the abrasive sawing of cement pipe. AB - Although industrial uses of asbestos have declined since the 1970s, in recent years there has been a renewed interest in para-occupational ("take-home") exposure to these fibers. The aim of this study was to quantify the release of asbestos fibers, if any, during the shaking out of crocidolite- and chrysotile contaminated clothing in a simulated at-home setting. An exposure study was conducted in which personal and area air samples were collected during the handling (i.e. shake-out) of work clothing (shirt and pants) previously worn by an operator who had cut asbestos-containing cement pipe. During eight "loading" events, the operator cut a historically representative asbestos-containing cement pipe (10% crocidolite and 25% chrysotile) using a powered abrasive saw. Subsequently, 30-minute air samples were collected during four "shake-out" events, each of which consisted of the handling of two complete sets of contaminated work clothes. Samples were analyzed in accordance with NIOSH methods 7400 and 7402. The mean phase contrast microscopy equivalent (PCME) airborne concentrations were 0.52 f/cc (SD = 0.34 f/cc) for total asbestos fibers, 0.36 f/cc (SD = 0.26 f/cc) for chrysotile and 0.17 f/cc (SD = 0.096 f/cc) for crocidolite. Based on likely estimates of the frequency of laundering activities, and assuming that the dusty clothing (1) is not blown off in the occupational setting using compressed air and (2) is not shaken out before entering the home, a family member handling the clothing could potentially have a lifetime cumulative exposure to chrysotile and crocidolite of approximately 0.20 f/cc-year and 0.096 f/cc-year, respectively. PMID- 29336180 TI - Erratum. PMID- 29336179 TI - Belimumab and antipneumococcal vaccination in patients with systemic lupus erythematosus. AB - In systemic lupus erythematosus (SLE), flares can be caused by infections. In particular, Streptococcus pneumoniae infection can be severe or even potentially lethal in absence of previous immunization or in case of 'aggressive' systemic antibiotic therapy. Immunization efficacy, however, can be reduced in such patients with the use of the various immunosuppressive therapeutic regimens. In particular, the use of novel monoclonal antibodies against B lymphocytes raises concerns over the potential interference with antipneumococcal vaccination. Previous studies demonstrated that belimumab therapy did not significantly reduce the efficacy of antipneumococcal vaccination, when received after the initiation of belimumab therapy. The study being evaluated in this article investigated the efficacy of vaccination in relationship to initiation of belimumab therapy in SLE patients. PMID- 29336181 TI - Analytical and between-subject variation of thrombin generation measured by calibrated automated thrombography on plasma samples. AB - BACKGROUND: The Calibrated Automated Thrombography (CAT) is an in vitro thrombin generation (TG) assay that holds promise as a valuable tool within clinical diagnostics. However, the technique has a considerable analytical variation, and we therefore, investigated the analytical and between-subject variation of CAT systematically. Moreover, we assess the application of an internal standard for normalization to diminish variation. METHODS: 20 healthy volunteers donated one blood sample which was subsequently centrifuged, aliquoted and stored at -80 degrees C prior to analysis. The analytical variation was determined on eight runs, where plasma from the same seven volunteers was processed in triplicates, and for the between-subject variation, TG analysis was performed on plasma from all 20 volunteers. The trigger reagents used for the TG assays included both PPP reagent containing 5 pM tissue factor (TF) and PPPlow with 1 pM TF. Plasma, drawn from a single donor, was applied to all plates as an internal standard for each TG analysis, which subsequently was used for normalization. RESULTS: The total analytical variation for TG analysis performed with PPPlow reagent is 3-14% and 9 13% for PPP reagent. This variation can be minimally reduced by using an internal standard but mainly for ETP (endogenous thrombin potential). The between-subject variation is higher when using PPPlow than PPP and this variation is considerable higher than the analytical variation. CONCLUSION: TG has a rather high inherent analytical variation but considerable lower than the between-subject variation when using PPPlow as reagent. PMID- 29336182 TI - The effects of fermented milk containing Lactococcus lactis subsp. cremoris FC on defaecation in healthy young Japanese women: a double-blind, placebo-controlled study. AB - The objective of this double-blind, placebo-controlled study was to elucidate the effects of fermented milk containing Lactococcus lactis subsp. cremoris FC (FC) on defaecation in healthy young women. We included 31 women (18-31 years old) who were randomly selected into two groups. Subjects in the test group consumed fermented milk containing FC, while subjects in the placebo group consumed non fermented gelled milk. In the test group, defaecation frequency (both in days and times per week) and stool volume significantly increased during the consumption of fermented milk containing FC compared with before consumption. These effects were also observed in subjects with mild constipation. Furthermore, in subjects with mild constipation, stool ammonia concentration was significantly lower in the test group than that in the placebo group after 4 weeks. These results suggest that fermented milk containing FC is beneficial for improving defaecation and faecal properties. PMID- 29336183 TI - Postradiation Synovial Sarcoma of the Common Bile Duct: A Previously Unreported Anatomic Site. AB - Synovial sarcoma is a ubiquitous neoplasm predominantly affecting soft tissues of young adults of any gender; few cases have been described in the digestive system, mostly in the stomach. The (X;18)(p11.2; q11.2) translocation yields unique SS18-SSX fusion genes. Synovial sarcoma has been related to radiotherapy, but no synovial sarcoma has been associated with the digestive system. This article describes the case of a synovial sarcoma arising along the extrahepatic biliary tree, 10 years after the application of an abdominal radiotherapy schedule due to a retroperitoneal metastatic seminoma in a male who developed progressive obstructive jaundice. Ninety percent of the analyzed cells carried the SS18 gene with separation of sequences, thus denoting a translocation. There are only 8 post-radiotherapy synovial sarcomas that have been reported previously, and this is the first report of a radiotherapy-related synovial sarcoma arising from the extrahepatic biliary tree, and the second case described in this anatomic region. PMID- 29336184 TI - Alpha-amylase, alpha-glucosidase and lipase inhibiting activities of polyphenol rich extracts from six common bean cultivars of Southern Italy, before and after cooking. AB - Common beans (Phaseolus vulgaris) are a good source of nutrients and phenolic compounds with versatile health benefits. Polyphenol-rich extracts of six ecotypes of P. vulgaris were analysed to determine their phenolic profiles and assayed in vitro for inhibitory effects on digestive enzymes relevant to carbohydrates and lipids metabolism. The extracts inhibited enzyme activities in a dose-dependent manner. IC 50 values ranged from 69 +/- 1.9 to 126 +/- 3.2 MUg/mL and from 107.01 +/- 4.5 to 184.20 +/- 5.7 MUg/mL, before and after cooking, for alpha-amylase, from 39.3 +/- 4.4 to 74.13 +/- 6.9 MUg/mL and from 51 +/- 7.7 to 122.1 +/- 5.2 MUg/mL for alpha-glucosidase and from 63.11 +/- 7.5 to 103.2 +/- 5.9 MUg/mL and from 92.0 +/- 6.3 to 128.5 +/- 7.4 MUg/mL for lipase. Results suggest encouraging their consumption, being natural sources of enzyme inhibitors important for type-2 diabetes and obesity prevention/control. Well monitored in vivo studies would help to establish their beneficial effects, making them worthwhile of further consideration as functional foods. PMID- 29336185 TI - An update on first line therapies for metastatic breast cancer. AB - INTRODUCTION: In recent years, outcomes of patients with metastatic breast cancer (MBC) have improved due to a greater understanding of the mechanisms of carcinogenesis in the development of newer molecularly targeted drugs, especially those as a front-line therapy. Remarkable improvements have been made in the treatment of hormone receptor positive (HR+) and Her2 positive MBC and currently targeted treatment strategies represent a valid first line treatment. Areas covered: Herein, the authors provide an overview of the first-line pharmacotherapies currently available for the treatment of MBC and provide their expert perspectives on the area. Expert opinion: Decisions on the first-line treatment of MBC should consider the clinical features of the disease, but also the biological mechanisms that regulate tumor cell growth. New and effective therapeutic agents have recently been introduced in the first-line therapy of MBC. However, to optimize the treatment of patients with metastatic disease, clinicians need biomarkers of resistance or sensitivity to targeted therapies. Efforts must also be made in developing strategies to personalize treatments of MBC patients and to identify those patients who might gain the most benefit from new treatment interventions, to save costs and limit toxicity. PMID- 29336186 TI - Subcutaneous Fat Necrosis of Newborn: Unfamiliar Histomorphology of a Familiar Lesion. PMID- 29336187 TI - Efficacy and safety of sirukumab in Japanese patients with moderate to severe rheumatoid arthritis inadequately controlled by disease modifying anti-rheumatic drugs: Subgroup analysis of a phase 3 study. AB - OBJECTIVE: To evaluate the efficacy and safety of sirukumab in Japanese patients with active rheumatoid arthritis (RA) uncontrolled by disease-modifying antirheumatic drugs. METHODS: This subgroup analysis based on a double-blind, placebo-controlled, 52-week phase 3 study (SIRROUND-D) assessed American College of Rheumatology (ACR) 20 response at week 16 and van der Heijde-modified Sharp score (vdH-S) at week 52 (coprimary endpoints). RESULTS: A total of 168 (Japanese)/1670 patients received sirukumab 50 mg/4 weeks (q4w, n = 58), 100 mg/every 2 weeks (q2w, n = 54), or placebo (n = 56) subcutaneously. Significantly more patients achieved ACR20 response at week 16 with sirukumab (50 mg q4w: 69.0%; 100mg q2w: 66.7%) vs. placebo (21.4%; p < .001). Median change from baseline in total vdH-S score at week 52 was significantly lower with sirukumab (50 mg q4w: 0.3, p = .024; 100 mg q2w: 0.0, p = .002) vs. placebo (1.3). Sirukumab consistently showed greater improvements in secondary endpoints at weeks 24 and 52. Nasopharyngitis, elevated liver enzymes, injection site erythema and upper respiratory tract infections were the common treatment-emergent adverse events (TEAEs). Incidences of TEAEs and serious AEs were consistent between sirukumab groups through week 52. CONCLUSION: Sirukumab showed clinically meaningful improvements consistent with significant improvements in the global study. No new safety signals were observed. PMID- 29336188 TI - Establishment of reference interval for the tumour marker serum CYFRA 21-1 in healthy Chinese Han ethnic adults. AB - BACKGROUND: Our aim was to establish the reference interval (RI) for serum CYFRA 21-1 in healthy Chinese Han ethnic adults, since there has been no report about it. METHODS: After screening, 9954 healthy Chinese Han adults (age range 18-95 years) were recruited, including 6639 (66.7%) males and 3315 (33.3%) females. Electrochemiluminescence immunoassay was used to measure serum CYFRA21-1. The RI was defined by nonparametric 95% percentile interval. RESULTS: The distribution for serum CYFRA21-1 level was non-Gaussian. The RI for healthy Chinese Han adults calculated by nonparametric method was 0-4.47 ng/ml in this study, higher than that recommended by Roche Diagnostics GmbH (<=3.3 ng/ml). The reference values were higher in males than females before 50 years of age, although the difference was hardly seen after 50 years of age. The reference value increased with age in both males and females. Of slight difference, the increase of male reference value was obvious at 60-69 and more than 80 years of age, while that of female obvious at 50-69 and more than 80 years of age. CONCLUSIONS: We establish the RI for serum CYFRA21-1 in healthy Chinese Han population, which is higher than that recommended by Roche Diagnostics GmbH. Furthermore, our study suggests that it is necessary to establish the age- and sex-specific RIs for serum CYFRA21-1. PMID- 29336189 TI - Depression, sexual satisfaction, and other psychological issues in women with polycystic ovary syndrome. AB - Polycystic ovary syndrome (PCOS) increases the risk of depression, poor quality of life, and low sexual satisfaction of women. The aim of the study was to evaluate the prevalence of these disorders and to assess the need for psychological consultation at the time of PCOS diagnosis. A case-control single center study of 250 women who were diagnosed with PCOS voluntarily filled in an anonymous, interactive questionnaire. The inquiry form included 27 questions covering the woman's characteristics, satisfaction with their outer appearance and sexual life, as well as the Beck Depression Inventory (BDI). Based on the BDI, 52% (130/250) of studied women presented depressive symptoms. This group had significantly higher body mass index (29.5 +/- 8.1 vs. 24.6 +/- 5.8; p<.001) and a lower level of self-attractiveness than other studied women (3.3 +/- 2.2 vs. 5.4 +/- 2.3; p<.001). Forty two percent (106/250) of women viewed themselves as unattractive. A correlation between reduced sexual satisfaction and a sense of low attractiveness was noted (r = 0.465, p<.001). Sixty four percent (160/250) of women believed that psychological consultation should be offered to all PCOS women. Treatment of PCOS women should be multidisciplinary and include psychological counseling, especially in obese PCOS women with inadequate family support and dissatisfied with their sexual life. PMID- 29336190 TI - A cost-effectiveness analysis of calcipotriol plus betamethasone dipropionate aerosol foam versus gel for the topical treatment of plaque psoriasis. AB - BACKGROUND: Calcipotriol 50 ug/g and betamethasone 0.5 mg/g dipropionate (Cal/BD) aerosol foam formulation provides greater effectiveness and improved patient preference compared with traditional Cal/BD formulations for the topical treatment of plaque psoriasis. OBJECTIVE: To determine the cost-effectiveness of Cal/BD foam compared with Cal/BD gel from the Australian perspective. METHODS: A Markov model was developed to evaluate the cost-effectiveness of topical Cal/BD foam and gel for the treatment of people with plaque psoriasis. Treatment effectiveness, safety, and utilities were based on a randomized control trial, resource use was informed by expert opinion, and unit costs were obtained from public sources. Outcomes were reported in terms of 1-year costs, quality-adjusted life years, and incremental cost-effectiveness ratios. All costs were reported in 2017 Australian Dollars. RESULTS: The model showed that patients using Cal/BD foam had more QALYs and higher costs over 1 year compared with patients using Cal/BD gel, resulting in a cost of $13,609 per QALY gained at 4-weeks. When 4 weeks of Cal/BD foam was compared with 8 weeks of Cal/BD gel treatment, Cal/BD foam was $8 less expensive and resulted in 0.006 more QALYs gained. Sensitivity analyses showed that, compared with Cal/BD ointment, Cal/BD foam was associated with an incremental cost of $15,091 per QALY gained. CONCLUSION: Cal/BD foam is the most cost-effective Cal/BD formulation for the topical treatment of patients with plaque psoriasis. PMID- 29336191 TI - Teratogenic potential of nanoencapsulated vitamin A evaluated on an alternative model organism, the tunicate Ciona intestinalis. AB - Nano-encapsulation is a technology used to pack substances in order to enhance their stability and bioavailability, but this packing may interact with living systems, causing unexpected toxicity. Vitamin A (vit A) is a substance that has received attention, because in developed countries, the increasing availability of supplements is leading to its excessive intake. This study aims to compare teratogenic effects caused by exposure to the traditional formulation of vit A versus nano-encapsulated vit A. We used ascidian embryos as an alternative model. Ascidians are marine organisms closely related to vertebrates that share with them a body plan and developmental programme, including the morphogenetic role of retinoic acid (RA). Our data showed that the adverse effects of exposure to the same concentration of the two formulations were different, suggesting that the nano-encapsulation increased the bioavailability of the molecule, which could be better absorbed and metabolised to RA, the effective teratogenic substance. PMID- 29336192 TI - How mass spectrometric approaches applied to bacterial identification have revolutionized the study of human gut microbiota. AB - INTRODUCTION: Describing the human hut gut microbiota is one the most exciting challenges of the 21st century. Currently, high-throughput sequencing methods are considered as the gold standard for this purpose, however, they suffer from several drawbacks, including their inability to detect minority populations. The advent of mass-spectrometric (MS) approaches to identify cultured bacteria in clinical microbiology enabled the creation of the culturomics approach, which aims to establish a comprehensive repertoire of cultured prokaryotes from human specimens using extensive culture conditions. Areas covered: This review first underlines how mass spectrometric approaches have revolutionized clinical microbiology. It then highlights the contribution of MS-based methods to culturomics studies, paying particular attention to the extension of the human gut microbiota repertoire through the discovery of new bacterial species. Expert commentary: MS-based approaches have enabled cultivation methods to be resuscitated to study the human gut microbiota and thus to fill in the blanks left by high-throughput sequencing methods in terms of culturing minority populations. Continued efforts to recover new taxa using culture methods, combined with their rapid implementation in genomic databases, would allow for an exhaustive analysis of the gut microbiota through the use of a comprehensive approach. PMID- 29336193 TI - Enhancement of iodinin solubility by encapsulation into cyclodextrin nanoparticles. AB - Phenazine is known to regroup planar nitrogen-containing heterocyclic compounds. It was used here to enhance the bioavailability of the biologically important compound iodinin, which is near insoluble in aqueous solutions. Its water solubility has led to the development of new formulations using diverse amphiphilic alpha-cyclodextrins (CDs). With the per-[6-desoxy-6-(3 perfluorohexylpropanethio)-2,3-di-O-methyl]-alpha-CD, we succeeded to get iodinin loaded nanoformulations with good parameters such as a size of 97.9 nm, 62% encapsulation efficiency and efficient control release. The study presents an interesting alternative to optimizing the water solubility of iodinin by chemical modifications of iodinin. PMID- 29336194 TI - A Robust Multiplex Mass Spectrometric Assay for Screening Small-Molecule Inhibitors of CD73 with Diverse Inhibition Modalities. AB - CD73/Ecto-5'-nucleotidase is a membrane-tethered ecto-enzyme that works in tandem with CD39 to convert extracellular adenosine triphosphate (ATP) into adenosine. CD73 is highly expressed on various types of cancer cells and on infiltrating suppressive immune cells, leading to an elevated concentration of adenosine in the tumor microenvironment, which elicits a strong immunosuppressive effect. In preclinical studies, targeting CD73 with anti-CD73 antibody results in favorable antitumor effects. Despite initial studies using antibodies, inhibition of CD73 catalytic activity using small-molecule inhibitors may be more effective in lowering extracellular adenosine due to better tumor penetration and distribution. To screen small-molecule libraries, we explored multiple approaches, including colorimetric and fluorescent biochemical assays, and due to some limitations with these assays, we developed a mass spectrometry (MS)-based assay. Only the MS-based assay offers the sensitivity and dynamic range required for screening small-molecule libraries at a substrate concentration close to the Km value of substrate and for evaluating the mode of binding of screening hits. To achieve a throughput suitable for high-throughput screening (HTS), we developed a RapidFire-tandem mass spectrometry (RF-MS/MS)-based multiplex assay. This assay allowed a large diverse compound library to be screened at a speed of 1536 reactions per 40-50 min. PMID- 29336195 TI - Is aspiration and sclerotherapy treatment for hydroceles in the aging male an evidence-based treatment? AB - Symptomatic hydroceles are commonly treated with surgical repair. They are associated with sexual dysfunction in the aging male. Patients who are not fit for surgery often undergo aspiration and sclerotherapy of the hydrocele. There is a range of sclerosing agents used in the literature. I performed a literature search to assess whether one sclerosant was better than the others. STDS is the sclerosing agent with the best cure rate after a single injection and low side effect rates. The cure rates of sodium tetradecyl sulphate (STDS) after a single aspiration and injection were 76%. After multiple treatments 94% achieved a cure. Patient satisfaction rates at mean 40 months were 95%. Complication rates were generally low and much lower than surgical repair. Aspiration and sclerotherapy have a role in treating symptomatic hydroceles. This literature review shows that this is over and above its current use in the UK, where it is used for patients unfit for general anaesthetic. If the patients are carefully selected for this procedure, they can have a good outcome and avoid the higher complication rate and longer recovery rates of surgical repair. Patients should be counselled about aspiration and sclerotherapy as part of the informed consent process. PMID- 29336196 TI - Effect of Chromoendoscopy Filters on Visualization of KTP Laser-Associated Tissue Changes: A Cadaveric Animal Model. AB - Standard KTP laser (potassium titanyl phosphate) wavelength-specific protective eyewear often impairs visualization of tissue changes during laser treatment. This sometimes necessitates eyewear removal to evaluate tissue effects, which wastes time and poses safety concerns. The objective was to determine if "virtual" or "electronic" chromoendoscopy filters, as found on some endoscopy platforms, could alleviate the restricted visualization inherent to protective eyewear. A KTP laser was applied to porcine laryngeal tissue and recorded via video laryngoscopy with 1 optical (Olympus Narrow Band Imaging) and 8 digital (Pentax Medical I-scan) chromoendoscopy filters. Videos were viewed by 11 otolaryngologists wearing protective eyewear. Using a discrete visual analog scale, they rated each filter on its ability to improve visualization,. No filter impaired visualization; 5 of 9 improved visualization. Based on statistical significance, the number of positive responses, and the lack of negative responses, narrow band imaging and the I-scan tone enhancement filter for leukoplakia performed best. These filters could shorten procedure time and improve safety; therefore, further clinical evaluation is warranted. PMID- 29336198 TI - Long non-coding RNA GPR65-1 is up-regulated in gastric cancer and promotes tumor growth through the PTEN-AKT-slug signaling pathway. AB - Increasing evidence has shown that abnormal expression of lncRNAs is involved in various biological behaviors and major cellular pathways of human cancers. However, the role of lncRNAs in the progression of gastric cancer has not been adequately investigated. Therefore, in this study, we investigated the expression levels of linc-GPR65-1 using Quantitative real-time PCR (qRT-PCR) and found that linc-GPR65-1 was significantly up-regulated in 50 gastric cancer tissues compared to the corresponding normal tissues. In addition, increased linc-GPR65-1 expression was associated with TNM stage (P = 0.037), tumor size (P = 0.024), distal metastasis (P = 0.023), and poor prognosis of gastric cancer patients. Moreover, functional assays indicated that decreased linc-GPR65-1 expression inhibited the aggressive phenotypes of gastric cancer cells, and enhanced linc GPR65-1 expression resulted in the opposite phenomenon. Then, a cancer signaling phosphoantibody microarray was conducted to explore the potential mechanisms of linc-GPR65-1 in regulating gastric cancer progression and observed that linc GPR65-1 could regulate the PTEN-AKT-slug signaling pathway. These data showed that linc-GPR65-1, regulating the PTEN-AKT-slug signaling pathway, might act as a tumor promoter and serve as a novel target for gastric cancer prevention and therapy. PMID- 29336197 TI - Neurosensory Deficits Vary as a Function of Point of Care in Pediatric Mild Traumatic Brain Injury. AB - Neurosensory abnormalities are frequently observed following pediatric mild traumatic brain injury (pmTBI) and may underlie the expression of several common concussion symptoms and delay recovery. Importantly, active evaluation of neurosensory functioning more closely approximates real-world (e.g., physical and academic) environments that provoke symptom worsening. The current study determined whether symptom provocation (i.e., during neurosensory examination) improved classification accuracy relative to pre-examination symptom levels and whether symptoms varied as a function of point of care. Eighty-one pmTBI were recruited from the pediatric emergency department (PED; n = 40) or outpatient concussion clinic (n = 41), along with matched (age, sex, and education) healthy controls (HC; n = 40). All participants completed a brief (~ 12 min) standardized neurosensory examination and clinical questionnaires. The magnitude of symptom provocation upon neurosensory examination was significantly higher for concussion clinic than for PED patients. Symptom provocation significantly improved diagnostic classification accuracy relative to pre-examination symptom levels, although the magnitude of improvement was modest, and was greater in the concussion clinic. In contrast, PED patients exhibited worse performance on measures of balance, vision, and oculomotor functioning than the concussion clinic patients, with no differences observed between both samples and HC. Despite modest sample sizes, current findings suggest that point of care represents a critical but highly under-studied variable that may influence outcomes following pmTBI. Studies that rely on recruitment from a single point of care may not generalize to the entire pmTBI population in terms of how neurosensory deficits affect recovery. PMID- 29336199 TI - The Rust Fungus Melampsora larici-populina Expresses a Conserved Genetic Program and Distinct Sets of Secreted Protein Genes During Infection of Its Two Host Plants, Larch and Poplar. AB - Mechanisms required for broad-spectrum or specific host colonization of plant parasites are poorly understood. As a perfect illustration, heteroecious rust fungi require two alternate host plants to complete their life cycles. Melampsora larici-populina infects two taxonomically unrelated plants, larch, on which sexual reproduction is achieved, and poplar, on which clonal multiplication occurs, leading to severe epidemics in plantations. We applied deep RNA sequencing to three key developmental stages of M. larici-populina infection on larch: basidia, pycnia, and aecia, and we performed comparative transcriptomics of infection on poplar and larch hosts, using available expression data. Secreted protein was the only significantly overrepresented category among differentially expressed M. larici-populina genes between the basidial, the pycnial, and the aecial stages, highlighting their probable involvement in the infection process. Comparison of fungal transcriptomes in larch and poplar revealed a majority of rust genes were commonly expressed on the two hosts and a fraction exhibited host specific expression. More particularly, gene families encoding small secreted proteins presented striking expression profiles that highlight probable candidate effectors specialized on each host. Our results bring valuable new information about the biological cycle of rust fungi and identify genes that may contribute to host specificity. PMID- 29336200 TI - Does CPAP Affect Patient-Reported Voice Outcomes? AB - Upper aerodigestive tract symptoms are common in patients with obstructive sleep apnea (OSA). It remains unclear whether continuous positive airway pressure (CPAP) improves or worsens these otolaryngology symptoms. As therapy-related side effects limit CPAP adherence, this study aimed to determine if CPAP negatively affects voice, sinonasal, and reflux symptoms of the upper airway. Case series with planned data collection was performed at an academic otolaryngology sleep center. Newly diagnosed patients with OSA were evaluated before and 6 months after initiating CPAP therapy. Data collected included CPAP data download, Reflux Symptom Index (RSI), Epworth Sleepiness Scale (ESS), Voice Handicap Index 10 (VHI 10), Sino-Nasal Questionnaire (SNQ), and oral dryness visual analog scale (VAS). For the 11 CPAP-adherent participants, the RSI significantly improved with CPAP (mean RSI, 22.0-9.5; P = .002); however, the VAS, VHI-10, and SNQ did not change after 6 months of CPAP therapy. In a small sample size, patient-reported voice outcomes (VHI-10) and other upper aerodigestive tract symptoms did not worsen with CPAP; rather, CPAP therapy was associated with a reduction in reflux symptoms. PMID- 29336201 TI - Poor Motor-Function Recovery after Spinal Cord Injury in Anxiety-Model Mice with Phospholipase C-Related Catalytically Inactive Protein Type 1 Knockout. AB - Mice with a knockout of phospholipase C (PLC)-related inactive protein type 1 (PRIP1-/- mice) display anxiety-like behavior and altered gamma-aminobutyric acid (GABA)A-receptor pharmacology. Here, we examined associations between anxiety and motor-function recovery in PRIP1-/- mice after a spinal cord injury (SCI) induced by a moderate contusion injury at the 10th thoracic level. Uninjured PRIP1-/- mice showed less distance than wild-type (WT) mice in the center 25% in an open field test (OFT), indicating anxiety-like behavior. Anxiety behavior increased in both WT and PRIP1-/- mice after SCI. WT and PRIP1-/- mice were completely paralyzed on day 1 after SCI, but gradually recovered until reaching a plateau at ~4 weeks. After SCI, the PRIP1-/- mice had significantly greater motor dysfunction than the WT mice. In WT mice after SCI, the percentage of distance spent in the center 25% of the OFT was correlated with the OFT distance traveled and velocity, and with the reaction time in a plantar pressure-sensitivity mechanical test. In PRIP1-/- mice after SCI, the percentage of distance spent in the center 25% of the OFT was correlated with the OFT distance traveled and with the latency to fall in the rotarod test. Six weeks after SCI, ionized calcium binding adaptor molecule 1 (Iba1) and glial fibrillary acidic protein (GFAP) expressions were elevated at the lesion epicenter in PRIP1-/- mice, and spinal cord atrophy and demyelination were more severe than in WT mice. The axonal fiber development was also decreased in PRIP1-/- mice, consistent with the poor motor function recovery after SCI in these mice. PMID- 29336202 TI - The Prediction Value of the Systemic Inflammation Score for Oral Cavity Squamous Cell Carcinoma. AB - Objectives This study aimed to investigate the potential prognostic role of the oral cancer systemic inflammation score (SIS) based on serum albumin levels and the lymphocyte-to-monocyte ratio in patients with oral squamous cell carcinoma (OSCC) after treatment. Study Design A retrospective cohort study. Setting Tertiary care center. Subjects and Methods The study involved 613 patients who were treated for OSCC between September 2005 and December 2014. The association of the oral cancer SIS with various clinicopathological features was investigated. A nomogram based on different clinicopathological features and SIS was established to predict prognosis. Results Higher SIS was significantly associated with older age ( P = .0013), advanced tumor status ( P < .0001), tumor depth ( P < .0001), advanced overall pathologic stage ( P < .0001), and extranodal extension ( P = .0045), as well as the presence of perineural invasion ( P = .0341). Higher SIS, older age, overall stage, and extranodal extension were demonstrated to be independent prognostic indicators for shorter overall survival ( P < .0001). A nomogram comprising SIS, TNM stage, and the degree of cell differentiation, as well as perineural invasion and extranodal extension, was developed to predict the prognosis of these patients. The c-index of the nomogram model based on TNM staging only was 0.688 and could be increased to 0.752 if SIS and several other clinicopathological parameters were incorporated. Conclusions Higher SIS is associated with many poor prognosticators, and the nomogram that was established and based on the incorporation of SIS might strengthen the prediction of prognosis in patients with OSCC. PMID- 29336203 TI - Aberrant interactions of peripheral measures and neurometabolites with lipids in complex regional pain syndrome using magnetic resonance spectroscopy: A pilot study. AB - Background The aim of this study was to assess peripheral measures and central metabolites associated with lipids using magnetic resonance spectroscopy. Results Twelve patients with complex regional pain syndrome (CRPS) and 11 healthy controls participated. Using magnetic resonance spectroscopy, we measured the levels of lipid 13a (Lip13a) and lipid 09 (Lip09) relative to total creatine (tCr) levels in the right and left thalamus. We found negative correlations of Lip13a/tCr in the right thalamus with red blood cells or neutrophils, but a positive correlation between Lip13a/tCr and lymphocytes in the controls. We found negative correlations between Lip09/tCr and peripheral pH or platelets in the controls. There were positive correlations between Lip09a/tCr and myo inositol/tCr, between Lip13a/tCr and N-acetylaspartate (NAA)/tCr, and between Lip09/tCr and NAA/tCr in healthy controls. On the other hand, there were positive correlations between Lip13a/tCr and Lip09/tCr and urine pH in CRPS patients. There were significant correlations between Lip13a/tCr or Lip09/tCr and different peripheral measures depending on the side of the thalamus (right or left) in CRPS patients. Conclusion This is the first report indicating that abnormal interactions of Lip13a and Lip09 in the thalamus with peripheral measures and central metabolites may mediate the complex pathophysiological mechanisms underlying CRPS. PMID- 29336205 TI - Prediction of natalizumab anti-drug antibodies persistency. AB - BACKGROUND: Anti-drug antibodies (ADA) against natalizumab develop early during treatment. ADA persistency is defined by two consecutive positive results as performed by the current qualitative ELISA assay (positive/negative). Very little is known about the magnitude of the natalizumab ADA response and persistency. DESIGN/METHODS: We developed a highly sensitive natalizumab ADA titration assay on the Meso Scale Discovery (MSD) platform and a pharmacokinetic (PK) assay. We included 43 patients with a positive ELISA-ADA result within 6 months of treatment initiation (baseline) of whom a follow-up serum sample was available 12 30 months after treatment start. MSD-ADA titres and drug levels were measured. RESULTS: Median MSD-ADA titre at baseline was 4881 and 303 at follow-up. A titre of >400 at baseline had a 94% sensitivity and 89% specificity to predict ADA persistency. Reversion to ADA negativity occurred in 10 patients with mean drug levels of 10.8 MUg/mL. The median trough drug level in ADA-positive samples was 0 ug/mL. PK levels and ADA titres correlated strongly negatively ( r = -0.67). CONCLUSION: High baseline natalizumab ADA titres accurately predict persistency. Despite continuous treatment, the majority of patients with persistent ADA had no detectable drug levels indicating loss of efficacy in line with phase 3 study results. PMID- 29336206 TI - Working in global health: A planning and implementation framework for international electives. AB - PURPOSE: Propose a framework for planning and undertaking an international elective. METHODS: On returning from conducting maternal health and well-being research in several remote communities in India, two undergraduate medical students have reflected on and documented their experiences with the view to assisting other students (and their supervisors) considering undertaking an international elective. RESULTS: A framework for undertaking clinical or research electives in remote or rural communities is presented. The framework comprises three distinct phases: Pre-departure planning and briefing, in-country experiences and returning from the elective and considers a range of factors to ensure that, as a minimum, visiting students "do no harm" and are themselves not harmed. CONCLUSIONS: Students' home institutions have a duty of care for preparing them for their international electives by providing pre-departure training, support during the elective and comprehensive de-briefing on their return. These electives should be evaluated (including by host communities) to ensure that exchanges are socially accountable, with no harm to the often vulnerable communities in which students gain considerable experience. Also important is that future students build on the positive experiences of their predecessors to ensure sustainability of any interventions in host communities. PMID- 29336204 TI - Continuous Infusion of Phenelzine, Cyclosporine A, or Their Combination: Evaluation of Mitochondrial Bioenergetics, Oxidative Damage, and Cytoskeletal Degradation following Severe Controlled Cortical Impact Traumatic Brain Injury in Rats. AB - To date, all monotherapy clinical traumatic brain injury (TBI) trials have failed, and there are currently no Food and Drug Administration (FDA)-approved pharmacotherapies for the acute treatment of severe TBI. Due to the complex secondary injury cascade following injury, there is a need to develop multi mechanistic combinational neuroprotective approaches for the treatment of acute TBI. As central mediators of the TBI secondary injury cascade, both mitochondria and lipid peroxidation-derived aldehydes make promising therapeutic targets. Cyclosporine A (CsA), an FDA-approved immunosuppressant capable of inhibiting the mitochondrial permeability transition pore, and phenelzine (PZ), an FDA-approved monoamine oxidase inhibitor capable of scavenging neurotoxic lipid peroxidation derived aldehydes, have both been shown to be partially neuroprotective following experimental TBI. Therefore, it follows that the combination of PZ and CsA may enhance neuroprotection over either agent alone through the combining of distinct but complementary mechanisms of action. Additionally, as the first 72 h represents a critical time period following injury, it follows that continuous drug infusion over the first 72 h following injury may also lead to optimal neuroprotective effects. This is the first study to examine the effects of a 72 h subcutaneous continuous infusion of PZ, CsA, and the combination of these two agents on mitochondrial respiration, mitochondrial bound 4-hydroxynonenal (4 HNE), and acrolein, and alpha-spectrin degradation 72 h following a severe controlled cortical impact injury in rats. Our results indicate that individually, both CsA and PZ are able to attenuate mitochondrial 4-HNE and acrolein, PZ is able to maintain mitochondrial respiratory control ratio and cytoskeletal integrity but together, PZ and CsA are unable to maintain neuroprotective effects. PMID- 29336207 TI - Cytotoxicity of Ciprofloxacin and Steroids in Mouse Tympanic Membrane Fibroblasts. AB - Objective Ciprofloxacin, commonly given as eardrops, has been shown to adversely affect tympanic membrane fibroblasts. Dexamethasone potentiates this effect. A newly available eardrop contains ciprofloxacin and fluocinolone, a more potent steroid. We evaluated the cytotoxic effects of this preparation on mouse tympanic membrane fibroblasts. Study Design Prospective, in vitro. Setting Academic laboratory. Subjects and Methods In experiment 1, fibroblasts were exposed to 1:10 dilutions of commercially available 0.3% ofloxacin, 0.3% ciprofloxacin, 0.3% ciprofloxacin + 0.1% dexamethasone, 0.3% ciprofloxacin + 0.025% fluocinolone, or dilute hydrochloric acid (control), twice within 24 hours. In experiment 2, cells were also treated with the dilutions of the pure form of dexamethasone 0.1% or fluocinolone 0.025%, alone and in combination with ofloxacin or ciprofloxacin. Cells were exposed to the solutions for 2 hours each time and were placed back in growth media after the treatments. Cells were observed with phase-contrast microscope until the cytotoxicity assay was performed. Results Survival of fibroblasts treated with ofloxacin was not different from the control. Fibroblasts treated with ciprofloxacin, ciprofloxacin + dexamethasone, or ciprofloxacin + fluocinolone had much lower survival (all P < .0001). Cells treated with ciprofloxacin + fluocinolone had lower survival than ciprofloxacin ( P < .0001) and ciprofloxacin + dexamethasone ( P = .0001). Steroids alone also decreased fibroblast survival compared to control ( P < .0001). The combination of dexamethasone or fluocinolone with ciprofloxacin, but not ofloxacin, further decreased fibroblast survival ( P < .0001). Phase-contrast images mirrored the cytotoxicity findings. Conclusion Tympanic membrane fibroblast cytotoxicity of ciprofloxacin is potentiated by corticosteroids. This effect may be deleterious when treating a healing perforation but beneficial when treating granulation tissue on the tympanic membrane. PMID- 29336208 TI - The Effects of Sex Differences and Hormonal Contraception on Outcomes after Collegiate Sports-Related Concussion. AB - There is conflicting evidence regarding whether females are more adversely affected after concussion than males. Further, recent research suggests that hormonal contraceptive (HC) use may affect symptom severity and duration post concussion. The objective of this study was to examine the effects of sex and HC use on outcomes following concussion among collegiate varsity athletes. We hypothesized that females would have longer length of recovery (LOR), and that peak symptom severity would be associated with longer LOR in both males and females. Among females, we hypothesized that non-HC users would have longer LOR and higher peak symptom severity than HC users. Ninety collegiate student athletes were included in this study (40 males, 50 females; 24 HC users, 25 non HC users). Demographic, injury, and recovery information was abstracted via retrospective record review. LOR was defined as days between injury and clearance for full return to play by team physician. Peak symptom severity score (Sport Concussion Assessment Tool [SCAT] 2 or 3) was used in analyses. Study results revealed that males had shorter LOR than females (F[1, 86] = 5.021, p < 0.05, d = 0.49), but had comparable symptom severity scores. Symptom severity was strongly related to LOR for males (r = 0.513, p < 0.01) but not females (r = -0.003, p > 0.05). Among females, non-HC users demonstrated higher symptom severity than HC users (F[1,47] = 5.142, p < 0.05, d = 0.70). No significant differences between female HC users and non-HC users on LOR were observed. This study provides evidence for differential concussion outcomes between male and female collegiate athletes and between HC users and nonusers among females. PMID- 29336209 TI - Effects of Treadmill Training Combined with Serotonergic Interventions on Spasticity after Contusive Spinal Cord Injury. AB - Spasticity usually emerges during the course of recovery from spinal cord injury (SCI). While medications and physical rehabilitation are prescribed to alleviate spastic symptoms, the insufficiency of their effects remains an important problem to be addressed. Given the challenges associated with increasing the dose of medication, we hypothesized that a combination therapy with medication and physical rehabilitation can be effective. Therefore, we examined the effects of treadmill training (TMT) along with serotonergic medication using a spastic rat model after contusive injury. Spasticity-strong SCI rats were selected 4 weeks after SCI and received one of the following interventions for 2 weeks: only TMT, TMT with fluoxetine (a selective serotonin re-uptake inhibitor), TMT with cyproheptadine (a 5-HT2 receptor antagonist), only fluoxetine, or only cyproheptadine. We performed the swimming test to quantify the frequency of spastic behaviors. We also evaluated hindlimb locomotor functions every week. At the end of the intervention, we examined the Hoffman reflex from the plantar muscle and the immunoreactivity of the 5-HT2A receptor in spinal cord tissues. While the TMT group and cyproheptadine-treated groups showed decreased spastic behaviors and reduction in spinal hyperreflexia, the fluoxetine-treated group showed the opposite effect, even with TMT. Moreover, TMT suppressed the expression of the 5-HT2A receptor in the lumbar spinal motor neurons, while cyproheptadine treatment did not change it. We did not observe any differences in locomotor functions between the groups. Taken together, our findings indicate that TMT and cyproheptadine significantly alleviated spastic symptoms, but did not show synergistic or additive effects. PMID- 29336210 TI - Semi-supervised identification of cancer subgroups using survival outcomes and overlapping grouping information. AB - Identification of cancer patient subgroups using high throughput genomic data is of critical importance to clinicians and scientists because it can offer opportunities for more personalized treatment and overlapping treatments of cancers. In spite of tremendous efforts, this problem still remains challenging because of low reproducibility and instability of identified cancer subgroups and molecular features. In order to address this challenge, we developed Integrative Genomics Robust iDentification of cancer subgroups (InGRiD), a statistical approach that integrates information from biological pathway databases with high throughput genomic data to improve the robustness for identification and interpretation of molecularly-defined subgroups of cancer patients. We applied InGRiD to the gene expression data of high-grade serous ovarian cancer from The Cancer Genome Atlas and the Australian Ovarian Cancer Study. The results indicate clear benefits of the pathway-level approaches over the gene-level approaches. In addition, using the proposed InGRiD framework, we also investigate and address the issue of gene sharing among pathways, which often occurs in practice, to further facilitate biological interpretation of key molecular features associated with cancer progression. The R package "InGRiD" implementing the proposed approach is currently available in our research group GitHub webpage ( https://dongjunchung.github.io/INGRID/ ). PMID- 29336211 TI - The effect of altering loading distance on skeleton start performance: Is higher pre-load velocity always beneficial? AB - Athletes initiating skeleton runs differ in the number of steps taken before loading the sled. We aimed to understand how experimentally modifying loading distance influenced sled velocity and overall start performance. Ten athletes (five elite, five talent; 67% of all national athletes) underwent two to four sessions, consisting of two dry-land push-starts in each of three conditions (preferred, long and short loading distances). A magnet encoder on the sled wheel provided velocity profiles and the overall performance measure (sled acceleration index). Longer pre-load distances (12% average increase from preferred to long distances) were related to higher pre-load velocity (r = 0.94), but lower load effectiveness (r = -0.75; average reduction 29%). Performance evaluations across conditions revealed that elite athletes' preferred distance push-starts were typically superior to the other conditions. Short loading distances were generally detrimental, whereas pushing the sled further improved some talent squad athletes' performance. Thus, an important trade-off between generating high pre-load velocity and loading effectively was revealed, which coaches should consider when encouraging athletes to load later. This novel intervention study conducted within a real-world training setting has demonstrated the scope to enhance push-start performance by altering loading distance, particularly in developing athletes with less extensive training experience. PMID- 29336212 TI - Simulated Microgravity Impairs Cardiac Autonomic Neurogenesis from Neural Crest Cells. AB - Microgravity-induced alterations in the autonomic nervous system (ANS) contribute to derangements in both the mechanical and electrophysiological function of the cardiovascular system, leading to severe symptoms in humans following space travel. Because the ANS forms embryonically from neural crest (NC) progenitors, we hypothesized that microgravity can impair NC-derived cardiac structures. Accordingly, we conducted in vitro simulated microgravity experiments employing NC genetic lineage tracing in mice with cKitCreERT2/+, Isl1nLacZ, and Wnt1-Cre reporter alleles. Inducible fate mapping in adult mouse hearts and pluripotent stem cells (iPSCs) demonstrated reduced cKitCreERT2/+-mediated labeling of both NC-derived cardiomyocytes and autonomic neurons (P < 0.0005 vs. controls). Whole transcriptome analysis, suggested that this effect was associated with repressed cardiac NC- and upregulated mesoderm-related gene expression profiles, coupled with abnormal bone morphogenetic protein (BMP)/transforming growth factor beta (TGF-beta) and Wnt/beta-catenin signaling. To separate the manifestations of simulated microgravity on NC versus mesodermal-cardiac derivatives, we conducted Isl1nLacZ lineage analyses, which indicated an approximately 3-fold expansion (P < 0.05) in mesoderm-derived Isl-1+ pacemaker sinoatrial nodal cells; and an approximately 3-fold reduction (P < 0.05) in cardiac NC-derived ANS cells, including sympathetic nerves and Isl-1+ cardiac ganglia. Finally, NC-specific fate mapping with a Wnt1-Cre reporter iPSC model of murine NC development confirmed that simulated microgravity directly impacted the in vitro development of cardiac NC progenitors and their contribution to the sympathetic and parasympathetic innervation of the iPSC-derived myocardium. Altogether, these findings reveal an important role for gravity in the development of NCs and their postnatal derivatives, and have important therapeutic implications for human space exploration, providing insights into cellular and molecular mechanisms of microgravity-induced cardiomyopathies/channelopathies. PMID- 29336213 TI - Heart versus head: Differential bodily feedback causally alters economic decision making. AB - Metaphorically, altruistic acts, such as monetary donations, are said to be driven by the heart, whereas sound financial investments are guided by reason, embodied by the head. In a unique experiment, we tested the effects of these bodily metaphors using biofeedback and an incentivized economic decision-making paradigm. Participants played a repeated investment game with a simulated partner, alternating between tactical investor and altruistic investee. When making decisions, participants received counterbalanced visual feedback from their own or a simulated partner's heart or head, as well as no feedback. As investor, participants transferred a greater proportion of their endowments when exposed to visual feedback from their own head than to feedback from their own heart or no feedback at all. These effects were not observed when the source of the feedback was the simulated partner. As investee, heart feedback predicted greater altruistic returns than head or no feedback, but this effect did not differ based on source (own vs partner). Consistent with a dual-process framework, we suggest that people may be encouraged to invest more or be more altruistic when receiving bodily feedback from conceptually diametric sources. PMID- 29336214 TI - Direct red 81 adsorption on iron filings from aqueous solutions; kinetic and isotherm studies. AB - Direct Red 81 (DR-81) dye with a very high water solubility is widely used in many industries particularly textile industries. This study aimed to evaluate the practicability of using iron filings for the adsorption of DR-81 dye from the aqueous solutions. The effects of pH, adsorbent dose, initial DR-81 dye concentration, and adsorption time on adsorption process were also evaluated. The maximum of adsorption efficiency of DR-81 dye achieved in the optimum pH: 3, adsorbent dose: 2.5 g/L, contact time: 30 min, and initial dye concentration: 50 mg/L. The dye adsorption efficiency is increased by increasing the adsorbent dose and adsorption time. The kinetic and isotherm studies indicated that the adsorption process obeys a pseudo-first-order and Langmuir isotherm models. The experimental studies indicated that iron filings had the potential to act as an alternative adsorbent to remove the DR-81 dye from an aqueous solution. PMID- 29336215 TI - Noninvasive Real-Time Assessment of Cell Viability in a Three-Dimensional Tissue. AB - Maintaining cell viability within 3D tissue engineering scaffolds is an essential step toward a functional tissue or organ. Assessment of cell viability in 3D scaffolds is necessary to control and optimize tissue culture process. Monitoring systems based on respiration activity of cells (e.g., oxygen consumption) have been used in various cell cultures. In this research, an online monitoring system based on respiration activity was developed to monitor cell viability within acellular lung scaffolds. First, acellular lung scaffolds were recellularized with human umbilical cord vein endothelial cells, and then, cell viability was monitored during a 5-day period. The real-time monitoring system generated a cell growth profile representing invaluable information on cell viability and proliferative states during the culture period. The cell growth profile obtained by the monitoring system was consistent with 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide analysis and glucose consumption measurement. This system provided a means for noninvasive, real-time, and repetitive investigation of cell viability. Also, we showed the applicability of this monitoring system by introducing shaking as an operating parameter in a long-term culture. PMID- 29336216 TI - Sulfamethoxazole removal in membrane-photocatalytic reactor system - experimentation and modelling. AB - In this study, the efficacy of membrane-photocatalytic reactor (MPR) in sulfamethoxazole (SMX) removal was explored at a fixed initial SMX concentration, i.e. 100 mg/L. A supported catalyst, i.e. TiO2 on granular activated carbon (GAC TiO2), was used for MPR experiments. The SMX removal efficiency of the MPR was investigated under a range of hydraulic retention time (i.e. HRT from 51 to 152.5 min) and TiO2 catalyst dosage (55-50 mg/L). A maximum SMX removal efficiency of 83.6% was observed under 220 mg/L catalyst dosage and 80 min HRT. The increase in catalyst dosage from 55 to 550 mg/L has increased the transmembrane pressure of the reactor from 9.8 to 22.2 kPa. A multiple non-linear regression model was developed based on the experimental data and its significance was analyzed using two-way ANOVA. Based on the model, the optimal HRT and catalyst dosage for complete SMX removal (100%) were found out. The comparison of photocatalytic degradation experiments with sorption experiments conducted earlier revealed that SMX removal in the MPR was mainly by photocatalytic degradation and not by adsorption onto GAC-TiO2 catalyst. However, the performance of MPR in removing other emerging pollutants from real-time wastewaters could be explored before its field-scale application. PMID- 29336217 TI - Coronary anomaly: when you think you've seen it all. PMID- 29336218 TI - The different audiences of science communication: A segmentation analysis of the Swiss population's perceptions of science and their information and media use patterns. AB - Few studies have assessed whether populations can be divided into segments with different perceptions of science. We provide such an analysis and assess whether these segments exhibit specific patterns of media and information use. Based on representative survey data from Switzerland, we use latent class analysis to reconstruct four segments: the "Sciencephiles," with strong interest for science, extensive knowledge, and a pronounced belief in its potential, who use a variety of sources intensively; the "Critically Interested," also with strong interest and support for science but with less trust in it, who use similar sources but are more cautious toward them; the "Passive Supporters" with moderate levels of interest, trust, and knowledge and tempered perceptions of science, who use fewer sources; and the "Disengaged," who are not interested in science, do not know much about it, harbor critical views toward it, and encounter it-if at all-mostly through television. PMID- 29336219 TI - Asymmetricity Between Sister Cells of Pluripotent Stem Cells at the Onset of Differentiation. AB - Various somatic stem cells divide asymmetrically; however, it is not known whether embryonic stem cells (ESCs) divide symmetrically or asymmetrically, not only while maintaining an undifferentiated state but also at the onset of differentiation. In this study, we observed single ESCs using time-lapse imaging and compared sister cell pairs derived from the same mother cell in either the maintenance or differentiation medium. Mouse ESCs were cultured on E-cadherin coated glass-based dishes, which allowed us to trace single cells. The undifferentiated cell state was detected by green fluorescent protein (GFP) expression driven by the Nanog promoter, which is active only in undifferentiated cells. Cell population analysis using flow cytometry showed that the peak width indicating distribution of GFP expression broadened when cells were transferred to the differentiation medium compared to when they were in the maintenance medium. This finding suggested that the population of ESCs became more heterogeneous at the onset of differentiation. Using single-cell analysis by time lapse imaging, we found that although the total survival ratio decreased by changing to differentiation medium, the one-live-one-dead ratio of sister cell pairs was smaller compared with randomly chosen non-sister cell pairs, defined as an unsynchronized cell pair control, in both media. This result suggested that sister cell pairs were more positively synchronized with each other compared to non-sister cell pairs. The differences in interdivision time (the time interval between mother cell division and the subsequent cell division) between sister cells was smaller than that between non-sister cell pairs in both media, suggesting that sister cells divided synchronously. Although the difference in Nanog-GFP intensity between sister cells was smaller than that between non-sister cells in the maintenance medium, it was the same in differentiation medium, suggesting asymmetrical Nanog-GFP intensity. These data suggested that ESCs may divide asymmetrically at the onset of differentiation resulting in heterogeneity. PMID- 29336220 TI - High Serum Cholesterol Is a Novel Risk Factor for Graves' Orbitopathy: Results of a Cross-Sectional Study. AB - BACKGROUND: Limited data suggest that treatment with statins is associated with a reduced risk of Graves' orbitopathy (GO) in patients with Graves' disease (GD), attributed to the anti-inflammatory rather than to the hypolipemic effects of these medications. The aim of the present study was to investigate whether there is an association between high cholesterol and GO. The primary outcome was the relation between GO and low-density lipoprotein (LDL)-cholesterol. The secondary outcomes were the relation between severity or activity (the clinical activity score [CAS]) of GO and LDL-cholesterol. METHODS: A cross-sectional investigation was conducted in consecutive patients with GD who came under the authors' observation to undergo radioiodine treatment, a stratification aimed at forming two distinct groups of patients under the same conditions. A total of 250 patients were enrolled, 133 with and 117 without GO. Ophthalmological assessments and serum lipids measurements were performed. RESULTS: In multivariate analyses with correction for the duration of hyperthyroidism, a variable that differed between patients with respect to the presence or absence of GO, a correlation between the presence of GO and both total (p = 0.01) and LDL-cholesterol (p = 0.02) was observed. In patients with hyperthyroidism lasting <44 months, total and LDL-cholesterol were higher (p = 0.01 and p = 0.008, respectively) among GO patients. In this subgroup, based on the presence/absence of GO, cutoff values were established for total (191 mg/dL) and LDL-cholesterol (118.4 mg/dL), above which an increased risk of GO was observed (total cholesterol relative risk: 1.47; p = 0.03; LDL-cholesterol relative risk: 1.28; p = 0.03). GO severity and CAS did not correlate with serum lipids. However, CAS was found to be higher (p = 0.02) in patients with high total cholesterol. When the analysis was restricted to untreated GO patients, a correlation was found between CAS and both total (p = 0.04) and LDL-cholesterol (p = 0.03), after adjustment for GO duration. CONCLUSIONS: In patients with a short duration of hyperthyroidism, total and LDL cholesterol correlate with the presence of GO, suggesting a role of cholesterol in the development of GO. Depending on GO duration, total and LDL-cholesterol correlate with GO activity, suggesting a role of cholesterol in the clinical expression of GO. PMID- 29336221 TI - Sequelae of Tympanostomy Tubes in a Multihospital Health System. AB - Objectives Review the incidence of long-term sequelae after placement of tympanostomy tubes. Study Design Case series with chart review. Setting Multihospital network. Subjects Patients 0 to 3 years old undergoing tympanostomy tube (TT) placement. Methods A case series of 14,058 children between 2004 and 2010 was reviewed. The patients were followed for 5 years to determine number of repeated tube placements, need for surgical removal of tubes, and presence of perforation requiring repair. Results The study cohort included 14,058 children who underwent TT placement. The mean age at time of procedure was 1.4 years. A total of 14.4% of patients required a second set of tubes within the 5 years of follow-up studied, and 4.6% required 3 or more sets. Three percent required removal of a tube, and this occurred at an average time of 34.2 +/- 17.6 months postplacement. In total, 5.1% had a resulting perforation after either tube extrusion or tube removal requiring myringoplasty. Conclusions The rate of multiple tube placements and myringoplasty and tympanoplasty to correct resulting perforations has yet to be studied in a single large population. This information allows for more detailed preoperative counseling to patients and families. Better characterization of these populations with accurate rates of sequelae can help to tailor treatment and preoperative counseling in the future. PMID- 29336222 TI - Implementing a Health Home: Michigan's Experience. AB - As the number of individuals in the United States with chronic conditions and the associated costs in caring for these individuals continues to rise, there is a need to transform how health care services are delivered. Under Section 2703 of the Affordable Care Act of 2010, the federal government provides state Medicaid programs the opportunity to improve care coordination for people with chronic conditions in a person-centered approach through the establishment of health homes. Given the complexity of care for Medicaid beneficiaries with chronic conditions, addressing the social determinants of health and providing integrated care are central to effectively improving health outcomes and generating cost savings. Although launching a health home model is a step toward improving care coordination and care management for high-risk individuals, there are myriad components to implementing such a program. The purpose of this article is to explain the process that Michigan policymakers undertook to implement its Section 2703 Medicaid health home initiative, named the MI Care Team. The authors present lessons learned for policymakers and stakeholders in other states seeking to implement a Medicaid health home and explain how the nursing profession is integral for health homes. PMID- 29336223 TI - Assessment of safety culture among job positions in high-rise construction: a hybrid fuzzy multi criteria decision-making (FMCDM) approach. AB - The construction industry is known as one of the most dangerous industries, which not only requires sound operation of executive laws and regulations, but also necessitates the safety culture of all workers at workshops. Therefore, the aim of this research is to identify the factors of safety culture and ranking occupations in jobsites based on those factors in order to proactively improve the safety culture of construction projects and subsequently promote safety conditions and worksites. In this study, safety culture criteria are weighted by a combination of Fuzzy Decision Trail and Evaluation Laboratory and Fuzzy ANP methods. Next, different job positions in high-rise projects are ranked using the Fuzzy Technique for Order of Preference by Similarity to Ideal Solution method. Findings demonstrated that the project manager, site superintendent and supervisor occupations had the highest and labourers had the lowest level of safety culture in the high-rise construction industry. Furthermore, factors such as safety supervision and training must be considered more seriously in order to create a positive safety culture among workers. PMID- 29336224 TI - Treatment of a Klebsiella pneumoniae KPC cellulitis and gut decolonization with ceftazidime/avibactam in a migrant from Libya. AB - KPC-producing Klebsiella pneumoniae (KPC-Kp) is nowadays a global concern. Ceftazidime/avibactam is the most promising novel antibiotic combination available at the moment. We describe the case of a migrant with no risk factors for an infection due to multidrug resistant bacteria. He suffered from a KPC-Kp cellulitis and was treated with a ceftazidime/avibactam-meropenem-fosfomycin combination that not only eradicated the infection but also decontaminated his gut. Ceftazidime/avibactam-based treatment can be useful also in decontamination procedures. PMID- 29336225 TI - A robust likelihood approach to inference about the kappa coefficient for correlated binary data. AB - We construct a legitimate likelihood function for the agreement kappa coefficient for correlated data without specifically modelling all levels of correlation. This makes available the likelihood ratio test, the score test and other tools without the knowledge of the underlying distributions. This parametric robust likelihood approach applies to general clustered data scenarios. We provide simulations and real data analysis to demonstrate the advantage of the robust procedure. PMID- 29336226 TI - Identifying Metrics before and after Readmission following Head and Neck Surgery and Factors Affecting Readmission Rate. AB - Objectives Determine nationally representative readmission rates after head and neck cancer (HNCA) surgery and factors associated with readmission. Study Design Cross-sectional analysis of admissions database. Methods The 2013 Nationwide Readmissions Database was analyzed for HNCA surgery admissions and subsequent readmission within 30 days. The readmission rate, length of stay (LOS), disposition, mortality rate, and total charges were determined. Diagnoses and procedures upon readmission were quantified. Factors that were associated with readmission were determined. Results In total, 132,755 HNCA surgery inpatient admissions (mean age, 57.3 years; 52.2% male) were analyzed. Nationally representative metrics for HNCA surgery were mean LOS (4.4 +/- 0.1 days), disposition (home without services, 80.5%; home health care, 10.9%; and skilled facility, 6.6%), mortality rate (1.0% +/- 0.1%), and total charges ($53,106 +/- $1167). The readmission rate was 7.7% +/- 0.2% (mean readmission postoperative days, 17.1 +/- 0.1), with readmission LOS (5.6 +/- 0.1 days), mortality rate (3.7% +/- 0.3%), and total charges ($49,425 +/- $1548). The most common diagnoses at readmission included surgical complications (15.5%), mental health and substance abuse (13.1%), hypertension (12.8%), septicemia/infection (12.1%), gastrointestinal disease (11.3%), nutritional/metabolic disorders (10.1%), electrolyte abnormalities (8.5%), and esophageal disorders (8.1%). In multivariate analyses, male sex, increasing All Patients Refined Diagnosis Related Group (APR-DRG) severity score, and initial LOS were associated with readmission (odds ratio [95% confidence interval], 1.11 [1.04-1.20], 1.94 [1.77 2.12], and 1.34 [1.22-1.48], respectively), whereas age and discharge location were not ( P = .361 and .482). Conclusion HNCA surgery readmission is associated with significant increases in services/skilled care on discharge, mortality, and additional total health care cost. This national analysis identifies common readmission diagnoses to target to prevent readmissions. PMID- 29336227 TI - Extracts from Lupinus albescens: antioxidant power and antifungal activity in vitro against phytopathogenic fungi. AB - Fungi are considered the most damaging microorganisms in agriculture. The indiscriminate use of chemical treatments in agricultural products causes the development of pest resistance and affects human health. An alternative to synthetic fungicides is the use of natural products such as plant extracts for the management of fungal diseases in plants. Extracts from different parts of Lupinus albescens (roots, stalks, leaves, and flowers) were obtained by extraction using supercritical carbon dioxide (CO2) or compressed liquefied petroleum gas (LPG). Thereafter, the antioxidant activity of each extract was measured, and the antifungal activity in vitro of extracts was evaluated against Fusarium oxysporum and Fusarium verticillioides. For a concentration of 5000 mg/L, the half maximal inhibitory concentration (IC50) ranged from 29.25 MUg/mL to 192.96 MUg/mL. Antifungal tests showed that all matrices presented inhibitory effect against both fungi tested. The extracts obtained from roots by CO2 and LPG presented 70.1% and 65.1% inhibition against F. oxysporum, and 67.8% and 61.2% inhibition against F. verticillioides, respectively. These results suggest that the extracts obtained from L. albescens by extractions using supercritical CO2 and compressed LPG might be a potential source of antioxidants and natural fungicides. PMID- 29336228 TI - The Multitheoretical List of Therapeutic Interventions - 30 items (MULTI-30). AB - OBJECTIVE: To develop a brief version of the Multitheoretical List of Therapeutic Interventions (MULTI-60) in order to decrease completion time burden by approximately half, while maintaining content coverage. Study 1 aimed to select 30 items. Study 2 aimed to examine the reliability and internal consistency of the MULTI-30. Study 3 aimed to validate the MULTI-30 and ensure content coverage. METHOD: In Study 1, the sample included 186 therapist and 255 patient MULTI ratings, and 164 ratings of sessions coded by trained observers. Internal consistency (Chronbach's alpha and McDonald's omega) was calculated and confirmatory factor analysis was conducted. Psychotherapy experts rated content relevance. Study 2 included a sample of 644 patient and 522 therapist ratings, and 793 codings of psychotherapy sessions. In Study 3, the sample included 33 codings of sessions. A series of regression analyses was conducted to examine replication of previously published findings using the MULTI-30. RESULTS: The MULTI-30 was found valid, reliable, and internally consistent across 2564 ratings examined across the three studies presented. CONCLUSION: The MULTI-30 a brief and reliable process measure. Future studies are required for further validation. PMID- 29336229 TI - Parasites of importance for human health on edible fruits and vegetables in Nigeria: a systematic review and meta-analysis of published data. AB - Contamination of edible fruits and vegetables is now a global public health issue despite their health benefits as non-pharmacological prophylaxis against chronic diseases. Studies that will harness the extent of parasitic contaminations will ensure public health protection. Here, the prevalence and distribution of parasites of importance for human health on fruits and vegetables in Nigeria were determined through a systematic review and meta-analysis of published data. The random-effects model was used to determine pooled prevalence estimate (PPE). Heterogeneity was evaluated by the Cochran's Q-test. Parasites overall PPE of 32.4% (95% CI: 0.73, 0.91) was observed from 19 eligible studies reported across 13 Nigerian states. Sub-groups PPEs ranged between 3.5% (95% CI: 0.45, 1.86) and 58.5% (95% CI: 1.40, 4.09). A high degree of heterogeneity 97.53% (95% CI: 0.30, 0.46, P: 0.000) was observed within studies and sub-groups. Cryptosporidium species were the most prevalent, while Ancylostoma duodenale and Ascaris lumbricoides had the widest geographical distribution. Pineapple (Prev: 41.3%, 95% CI: 0.40, 0.75) and lettuce (Prev: 51.5%, 95% CI: 0.37, 0.68) recorded the highest level of parasitic contamination. Parasites of importance for human health are prevalent on edible fruits and vegetables in Nigeria. Prevalence estimates were highest in the South-eastern region and during the most recent decade. Adequate washing of fruits and vegetables, on-farm irrigation of vegetables using good sources of water and adequate hygiene by food handlers will help the general public to maximize the health benefits associated with the intake of fruits and vegetables while minimizing the risk of acquiring parasitic infections. PMID- 29336230 TI - Alterations of Global DNA Methylation and DNA Methyltransferase Expression in T and B Lymphocytes from Patients with Newly Diagnosed Autoimmune Thyroid Diseases After Treatment: A Follow-Up Study. AB - BACKGROUND: Dysregulated DNA methylation in lymphocytes has been linked to autoimmune disorders. The aims of this study were to identify global DNA methylation patterns in patients with autoimmune thyroid diseases and to observe methylation changes after treatment for these conditions. METHODS: A cross sectional study was conducted, including the following patients: 51 with newly diagnosed Graves' disease (GD), 28 with autoimmune hypothyroidism (AIT), 29 with positive thyroid autoantibodies, and 39 matched healthy volunteers. Forty GD patients treated with radioiodine or antithyroid drugs and 28 AIT patients treated with L-thyroxine were followed for three months. Serum free triiodothyronine, free thyroxine, thyrotropin, thyroid peroxidase antibodies, thyroglobulin antibodies, and thyrotropin receptor antibodies were assayed using electrochemiluminescent immunoassays. CD3+ T and CD19+ B cells were separated by flow cytometry for total DNA and RNA extraction. Global DNA methylation levels were determined by absorptiometry using a methylation quantification kit. DNA methyltransferase (DNMT) expression levels were detected by real-time polymerase chain reaction. RESULTS: Hypomethylation and down-regulated DNMT1 expression in T and B lymphocytes were observed in the newly diagnosed GD patients. Neither the AIT patients nor the positive thyroid autoantibodies patients exhibited differences in their global DNA methylation status or DNMT mRNA levels compared with healthy controls. Antithyroid drugs restored global methylation and DNMT1 expression in both T and B lymphocytes, whereas radioiodine therapy affected only T cells. L-thyroxine replacement did not alter the methylation or DNMT expression levels in lymphocytes. The global methylation levels of B cells were negatively correlated with the serum thyroid peroxidase antibodies in patients with autoimmune thyroid diseases. CONCLUSIONS: Hyperthyroid patients with newly diagnosed GD had global hypomethylation and lower DNMT1 expression in T and B lymphocytes. The results provide the first demonstration that antithyroid drugs or radioiodine treatment restore global DNA methylation and DNMT1 expression with concurrent relief of hyperthyroidism. PMID- 29336232 TI - Wealth, Social Protection Programs, and Child Labor in Colombia: A Cross sectional Study. AB - This article has 3 main objectives: (1) to assess the prevalence of child labor in Colombia, (2) to identify factors associated with child labor, and (3) to determine whether social protection programs have an association with the prevalence of child labor in the country. Using a cross-sectional study with data from the Colombian Demographic and Health Survey 2010, a working child was defined as a child who worked during the week prior to the survey in an activity other than household chores. Through descriptive statistics, bivariate analysis, and multivariate regressions, it was found that child labor was associated with gender (boys were more likely to work), older age, ethnicity (children from indigenous communities were more likely to be workers), school dropout, disability (children with disabilities were less likely to be working), subsidized health social security system membership, and lower number of years of mother's schooling. Furthermore, the results of this study suggest that children beneficiaries of the subsidy Familias en Accion were less likely to be working and that social protection programs were more effective to reduce child labor when targeting the lowest wealth quintiles of the Colombian population. PMID- 29336231 TI - A Universal Classification System of Skin Substitutes Inspired by Factorial Design. AB - The complexity of the dermal layer of skin means that damage to this section can result in permanent impairment of function. Partial or total dermal loss is a feature of deep burns and chronic wounds such as pressure sores or diabetic ulcers. The issues posed by traditional skin grafts have led to substantial research being carried out in the fields of tissue engineering and biomaterials science to develop a vast array of alternative skin substitutes. Given the large number of different materials, manufacturing methods, and techniques for implementation described for artificial skin substitutes, many classification systems have been created to simplify their categorization. Some of these systems are oriented toward clinicians while others toward researchers. However, none address the needs of both groups and none are intuitive. The creation of an effective classification system would be particularly helpful in the regulation, distribution, organization, and selection of skin substitutes. The aim of this review is to examine existing methods of classification of skin substitutes, and to propose a new system that uses an algorithm that is inspired by factorial design. Our system allows multiple factors to be simultaneously investigated or in this case, described, since all skin substitutes possess multiple characteristics: (1) cellularity (acellular or cellular), (2) layering (single layer or bilayer), (3) replaced region (epidermis, dermis, or both), (4) materials used (natural, synthetic, or both), and (5) permanence (temporary or permanent). The factors and levels are combined into an algorithm where all the possible combinations are shown. The multifactorial and palindromic structure of our system should enable all users to quickly understand the makeup of a selected skin substitute, or search for a skin substitute depending on their specific requirements. We feel that our proposed classification can be used by clinicians and biomedical researchers alike, which should be an advantage given the multidisciplinary nature of the tissue engineering field and the science that underpins the development of skin substitutes. We also touch upon some of the state-of-the-art skin substitutes that are commercially available or under development to demonstrate how our new method of classification might work. PMID- 29336234 TI - Haemostaseological complication management in caval and iliac venous stenting. AB - Antiplatelet and anticoagulation therapy after venous stenting is still not standardized, data from randomized-controlled trials are missing. Rare prothrombotic disorders and nonresponsiveness to drugs must be taken into account. This case report demonstrates successful haemostaselogical complication management in recurrent rethromboses due to underlying clopidogrel resistance and low responsiveness to anticoagulation with dabigatran after endovascular stent reconstruction of chronic pelvic and caval vein occlusion in a patient with severe postthrombotic syndrome. PMID- 29336235 TI - Rapid Remission of Graves' Hyperthyroidism Without Thionamides Under Immunosuppressive Treatment for Concomitant Autoimmune Hepatitis. PMID- 29336237 TI - Masticatory function and oral stereognosis in bruxers. AB - OBJECTIVE: To compare the mastication and oral sensory function of individuals with and without sleep bruxism. METHODS: The sample comprised 60 volunteers, of which 30 were bruxers (mean age = 30.5 +/- 6.0) and 30 non-bruxers (mean age = 28.6 +/- 3.3). Sleep bruxism was clinically diagnosed and confirmed using the Bruxoff(r) device. Mastication was evaluated according to swallowing threshold and masticatory efficiency. Swallowing threshold was determined from the median particle size of Optosil(r), obtained after an individualized number of masticatory cycles, which was first determined by chewing peanuts; masticatory efficiency was estimated by the sieving method. Oral stereognosis test was used to determine the oral sensory function. Variables were compared using one-way ANOVA (p < .05). RESULTS: The median particle size, masticatory efficiency, and oral sensory function did not differ significantly between bruxers and non bruxers (p > .05). CONCLUSION: Dentate adults present similar mastication and oral sensory function, despite the presence of sleep bruxism. PMID- 29336236 TI - Implementation of genomics research in Africa: challenges and recommendations. AB - BACKGROUND: There is exponential growth in the interest and implementation of genomics research in Africa. This growth has been facilitated by the Human Hereditary and Health in Africa (H3Africa) initiative, which aims to promote a contemporary research approach to the study of genomics and environmental determinants of common diseases in African populations. OBJECTIVE: The purpose of this article is to describe important challenges affecting genomics research implementation in Africa. METHODS: The observations, challenges and recommendations presented in this article were obtained through discussions by African scientists at teleconferences and face-to-face meetings, seminars at consortium conferences and in-depth individual discussions. RESULTS: Challenges affecting genomics research implementation in Africa, which are related to limited resources include ill-equipped facilities, poor accessibility to research centers, lack of expertise and an enabling environment for research activities in local hospitals. Challenges related to the research study include delayed funding, extensive procedures and interventions requiring multiple visits, delays setting up research teams and insufficient staff training, language barriers and an underappreciation of cultural norms. While many African countries are struggling to initiate genomics projects, others have set up genomics research facilities that meet international standards. CONCLUSIONS: The lessons learned in implementing successful genomics projects in Africa are recommended as strategies to overcome these challenges. These recommendations may guide the development and application of new research programs in low-resource settings. PMID- 29336238 TI - SIRT1-Regulated Abnormal Acetylation of FOXP3 Induces Regulatory T-Cell Function Defect in Hashimoto's Thyroiditis. AB - BACKGROUND: Hashimoto's thyroiditis (HT) is an autoimmune thyroid disease characterized by low expression of transcription factor Forkhead Box P3 (FOXP3) and functional deficiency of a cluster of differentiation regulatory T cells (Tregs). This study aimed to investigate the mechanism of Treg dysfunction in HT. METHODS: The number of CD4+CD25+FOXP3+ T cells was determined by flow cytometry. Expression of FOXP3 and Sirtuin type 1 (SIRT1) was evaluated by Western blot analysis. Acetylation of FOXP3 was analyzed by immunoprecipitation and Western blot analysis. The suppressive function of Treg was analyzed by the 5,6 carboxyfluorescein diacetate succinimidyl ester (CFSE) assay. RESULTS: The percentage of CD4+CD25+FOXP3+ T cells, expression of FOXP3, and FOXP3 acetylation level in the HT group were significantly lower than in the control groups. Conversely, SIRT1 expression was significantly higher in the HT group than in the other two groups. After Ex-527 treatment, the CD4+CD25+FOXP3+ T cells percentage, FOXP3 expression, and FOXP3 acetylation level in the HT group were significantly increased. HT Tregs exhibited less suppressive activity, but Ex-527 treatment significantly increased their suppressive activity. CONCLUSIONS: The findings demonstrate that the reduced FOXP3 expression level and Treg function defect in HT patients are regulated by SIRT1-mediated abnormal FOXP3 acetylation. Ex-527 may upregulate the FOXP3 acetylation level and subsequently increase the number and suppressive function of Treg cells. PMID- 29336239 TI - Early prognosis and predictor analysis for positive coronary angiography after out-of-hospital cardiac arrest (OHCA). AB - BACKGROUND: Key predictors of survival after OHCA have been described in the literature. Current guidelines recommend emergency angiography in patients without an obvious extra-cardiac cause of arrest. However, the value of this strategy is debated. Moreover, diagnosis of acute coronary ischaemia after OHCA remains challenging, especially in patients without ST-segment elevation. OBJECTIVES: The primary objective was to identify qualitative variables associated with an increased chance of 30-d survival after OHCA. The secondary objective was to identify predictors of 30-d survival among patients with ischaemic cardiomyopathy and patients without ST-segment elevation. Afterwards, we sought to identify parameters associated with acute coronary ischaemia and positive coronary angiography in patients without ST-segment elevation. METHODS: Retrospective single-centre study including 123 patients resuscitated from OHCA. Baseline characteristics, resuscitation settings and angiographic findings were analysed. RESULTS: The predictors of 30-d survival after OHCA included witnessed cardiac arrest, haemodynamic instability and coronary angiography. Convertible cardiac rhythm, history of coronary disease and presence of at least two cardiovascular risk factors were associated with acute coronary ischaemia. Predictors for a positive angiography in patients without ST-segment elevation included history of coronary disease, gender, diabetes, dyslipidaemia and presence of at least two cardiovascular risk factors (all p < .05). CONCLUSIONS: We identified qualitative predictors of 30-day survival after OHCA. Our findings suggest that the recognition of acute coronary ischaemia after OHCA might be improved. The identification of risk criteria may help to select the best candidates for emergency angiography. PMID- 29336240 TI - Treatment of anemia in patients with solid tumors receiving chemotherapy in palliative setting: usual practice versus guidelines. AB - Background Anemia is frequent in patients with cancer and is often multifactorial. Treatment depends on etiology and can consist of transfusions, intravenous iron (IV Fe), and/or erythropoiesis-stimulating agents (ESA). Several studies have shown that cancer-related anemia is undertreated. The aim of this study is to compare usual practice in a university hospital with the international guidelines. Methods Using the hospital and pharmacy informatics all adults (>=18 years), who received a treatment for anemia (transfusion, IV Fe, ESA) from February to August 2016 during palliative chemotherapy, were identified. Episodes of care were defined as the start of palliative chemotherapy up until 4 weeks after end of chemotherapy. After informed consent, relevant data in the episode of care were collected. Usual practice was compared to international guidelines adapted to Belgium reimbursement criteria. Results A total of 72 episodes of care were included. At initiation of chemotherapy, anemia was present in 59.7% of cases. Iron status was measured in 54.2% of all cases. Iron deficiency was found in 34.7% of patients. Only 52% of the iron deficient patents received IV Fe. Fifteen cases were considered eligible for ESA, six (40%) of these patients received an ESA. The most frequent treatments for anemia were transfusions (91.7%), followed by IV Fe (18.1%). Only 8.3% received an ESA. Conclusion Assessment for iron, Vitamin B12, and FA deficits are underused. We detected a high rate of transfusions. In contrast there is still a low use of IV Fe and ESA's. There has been no major improvement in the implementation of the international guidelines in the last decade. We estimate that in at least 16.7 26.4% of our patients less to no transfusions would have been required, if guidelines were strictly followed. PMID- 29336241 TI - Generation of the Fluorescent HPV16 E7 Protein for Detection of Delivery In vitro. AB - BACKGROUND: Immunotherapies targeting the human papillomavirus (HPV) oncogenic proteins, E6 and E7, are effective to treat HPV-associated cervical malignancies. OBJECTIVE: The main objective of this study was to generate the fluorescent HPV16 E7 protein for detection of delivery in vitro. METHODS: Two types of the fusion E7-GFP proteins (i.e., with or without linker) were expressed in different E. coli strains. Then, the efficiency of GFP and E7-GFP transfection was compared with FITC-antibody protein control using TurboFect reagent in the HEK-293T cell line. RESULTS: Our data indicated that both E7-GFP fusion proteins were efficiently produced in M15 E. coli strain, but not in BL21 or Rosetta strains. The E7-GFP fusion showed a clear band of ~ 50 kDa in SDS-PAGE. Moreover, the E7 GFP protein maintained the fluorescent properties only when there was a distance between E7 and GFP genes, suggesting a promising potential to use GFP fusion protein in generating soluble form of protein. This fluorescent property was stable and could be detected in vitro. Moreover, the HEK-293T cells transfected by GFP/TurboFect and E7- GFP/TurboFect complexes demonstrated spreading green regions using fluorescent microscopy. Flow cytometry results showed that the GFP fluorescence was stable even at 24 h post-transfection. CONCLUSION: Briefly, the E7-GFP fusion protein with linker can be useful for the development of protein vaccines against HPV16 infections and detection in vivo. PMID- 29336242 TI - The Influence of Fatty Acids on Metoprolol - Human Serum Albumin Interaction in Low Affinity Binding Sites: A Multifactorial NMR Approach. AB - BACKGROUND: Metoprolol (MTP) is a cardio-selective beta1-blocker used in hypertension, angina pectoris and chronic heart failure therapies. Serum albumin is the most frequently occurring protein in blood plasma. The binding of ligands to human serum albumin (HSA) has an important effect on pharmacokinetics and final clinical effects. OBJECTIVE: The objectives of this study included a detailed analysis of metoprolol - serum albumin interactions in low affinity binding sites, on the surface or within the hydrophobic subdomain of a macromolecule, as well as an analysis of the competition between MTP and fatty acids in binding with protein. METHODS: The analysis of the drug-albumin interaction was based on the observed chemical shifts in combination with correlation Times (T1 -1 = tau) [1/s], 2D NOESY 1H NMR spectra and association constants Ka [M-1]. For the determination of chemical shifts sigma [ppm], relaxation times T1 [s] and for the NOESY experiment, the final concentrations of MTP and albumins (in the presence (HSA) and absence of fatty acids (dHSA)) were 5 x 10-3 M and 2 x 10-5 M - 4.55 x 10-4 M, respectively. In order to calculate the association constants, the final concentrations of MTP and both HSA and dHSA were 2.75 x 10-3 M - 6.25 x 10-2 M and 2.5 x 10-4 M, respectively. For the analysis, the MTP proton resonances of aliphatic H17, aromatic (H2/H6 and H3/H5) and the methoxy group H14 were chosen. RESULTS: Changes in the values of the 1H NMR chemical shift [ppm] are evidence of interaction between MTP, fatted (HSA) and defatted (dHSA) human serum albumin. With an increase of albumin concentration, changes in the chemical shift values were observed for the aromatic protons H2/H6 (Deltasigma = 0.013 ppm and 0.018 ppm) and H3/H5 (Deltasigma = 0.015 ppm and 0.019 ppm), the aliphatic proton H17 (Deltasigma = 0.018 ppm and 0.022 ppm) and the aliphatic protons of the methoxy group H14 (Deltasigma = 0.019 ppm and 0.022 ppm) for dHSA and HSA, respectively. Greater changes in chemical shifts in the presence of fatty acids (FA) were observed. Changes in the correlation times of MTP aromatic H2/H6 (Deltatauc = 0.224 1/s and 0.189 1/s) and H3/H5 (Deltatauc = 0.269 1/s and 0.210 1/s), aliphatic from the methoxy group H14 (Deltatauc = 0.472 1/s and 0.271 1/s) and aliphatic H17 protons (Deltatauc = 0.178 1/s and 0.137 1/s) for dHSA and HSA systems, respectively. It confirms the interaction between the drug and albumin are evidence for the dynamics of the process. In the presence of FA the relaxation time of all analyzed MTP proton resonance signals significantly increases (due to the decrease of correlation time). This phenomenon is due to the increase of electron density in the MTP protons' surroundings. Association constants for the MTP-dHSA complex in the low affinity site range between 0.29 x 102 M-1 and 0.47 x 102 M-1. The presence of FA results in a two to three-fold increase of the Ka values of protons from aromatic (H2/H6 and H3/H5), aliphatic H17 and methoxy (H14) groups. In 2D NOESY spectra proton magnetization transfer was observed between cysteine (Cys-34) and aromatic H3/H5 and H2/H6 protons. Cross-peaks were also observed between cysteine and aliphatic protons from the methoxy group. CONCLUSION: The selective changes in sigma [ppm] and tauc [1/s] values indicated the unequal participation of chemical groups of MTP in the interaction with HSA and dHSA. The data obtained suggest that the presence of fatty acids increases the accessibility of low affinity sites of serum albumin to MTP, which results in the higher affinity of albumin towards the drug. The results showed that the main binding site of MTP and fatty acid is probably a low affinity site in subdomain IB, where Cys-34 can be located. PMID- 29336243 TI - Identification of In-Vitro Red Fluorescent Protein with Antipathogenic Activity from the Midgut of the Silkworm (Bombyx Mori L.). AB - BACKGROUND: The midgut of silkworm (Bombyx mori L.) plays an important role as a natural barrier and source of innate immunity. We had purified the novel red fluorescent protein (RFP) from the midgut of the silkworm Bombyx mori L. and bioassay studies confirmed RFPs possess antiviral, antifungal and antibacterial properties. N-terminal sequence of RFP analysis predicted chbp gene and it belongs to lipocalin gene family and is known to involve in anti-pathogenic activities. OBJECTIVE: The main objective of this study was to purify RFP from the midgut of Kolar Gold silkworm and confirm its antimicrobial activity. METHODS: For isolation of RFP, midgut juice was collected by brief exposure to chloroform vapours to fifth instar Kolar Gold silkworm larvae. Juice was purified by 40 % ammonium sulfate precipitation and purified by gel filtration chromatography (GFC) and fractions with fluorescence red under Ultra violet (UV) were collected. Molecular weight and purity of RFP was identified using PAGE, MALDI-TOF and HPLC. Antimicrobial property of purified RFP against BmNPV, Escherichia coli, Klebsiella pneumonia, Bacillus subtilis and Phytophthora meadii was performed. N-terminal sequencing of RFP was performed using Edman degradation method. Using ten amino acid sequence, using default parameter BLAST search was performerd. From the fifth day old fifth instar silkworm midgut mRNA was isolated and cDNA was synthesized using oligo-dt primer and amplification of ChBP gene was carried out by using cDNA as the template and ChBP gene specific primers. chbp protein sequence as a input built the homology model by using SWISS-MODEL. RESULTS: RFP was purified by 40 % ammonium sulfate precipitation and gel filtration chromatography (GFC) and fractions with fluorescence red under Ultra violet (UV) were collected and SDS - PAGE revealed a size of 40 kDa. RFP purified by GFC was further reconfirmed by HPLC with a single peak with a retention time of 8.755 min. MALDI-TOF produced a peak at a molecular mass of 40 kDa. RFP from the midgut juice showed antiviral activity against the silkworm virus BmNPV, antibacterial activity against Escherichia coli, Klebsiella pneumonia, Bacillus subtilis and Phytophthora meadii. N-terminal sequencing of RFP by Edman degradation method sequenced TQTIETDYWV amino acids and BLAST analysis predicted the Chlorophyllide-a Binding Protein (chbp) with B. mori. PCR product was sequenced and obtained 911bp nucleotides encoding 302 amino acid residues and deposited with the accession number KX186723 in NCBI. Sequence analysis revealed Chbp belongs to lipocalin gene family and known to involve in antiviral, antifungal and anti-bacterial properties. Chbp gene homology model was predicted using crystal structure of insecticyanin A from the tobacco hornworm as a template. CONCLUSION: Our results indicated RFP present in midgut juice of 5th instar larvae of kolar gold silkworm. We have purified novel RFP with molecular mass of 40 kDa and showed its antipathogenic activities. Chbp gene synthesises RFP and further it could be utilized for agriculture and pharmaceutical industry. PMID- 29336244 TI - Editorial: Signal Proteins Involved in Glucose and Lipid Metabolism Regulation. PMID- 29336245 TI - The Role of Colchicine in Pericardial Syndromes. AB - BACKGROUND: Colchicine is an old drug originally employed for the treatment of inflammatory disorders such as acute gout and familiar Mediterranean fever. METHODS: In the past few decades, colchicine has been at the forefront of the pharmacotherapy of several cardiac diseases, including acute and recurrent pericarditis, coronary artery disease, prevention of atrial fibrillation and heart failure. In this review, we have summarized the current evidence based medicine and guidelines recommendations in the specific context of pericardial syndromes. RESULTS: Colchicine has been firstly engaged in the treatment of recurrent pericarditis of viral, idiopathic and autoimmune origin. Shortly thereafter colchicine use has been expanded to the primary prevention of recurrences in patients with a first episode of pericarditis depicting similarly good results. The acquisition of high quality scientific data in the course of time from prospective randomized placebo-controlled trials and metanalyses have established colchicine as first line treatment option in acute and recurrent pericarditis, on top of the conventional treatment. The only concerns related to the use of colchicine are the side effects (mainly gastrointestinal intolerance) which although generally not serious, may account for treatment withdrawal in some cases. CONCLUSION: Colchicine has been established as a first line medication in the treatment of acute (first episode) and recurrent pericarditis on top of the conventional treatment as well as for the prevention of postpericardiotomy syndrome. It depicts a good safety profile with gastrointestinal intolerance being the most common side effect. PMID- 29336246 TI - The Role of Colchicine in the Prevention of Cerebrovascular Ischemia. AB - INTRODUCTION: Despite the proven efficacy of anti-thrombotic, lipid-lowering, anti-hypertensive therapies and lifestyle modification changes for secondary ischemic stroke prevention, the risk of recurrent stroke, coronary events and vascular death remains substantial even for patients treated with high rates of established secondary preventive medications. METHODS: In the present review, we summarize available literature data on the association between systemic inflammation and symptomatic atherosclerosis including recurrent cerebral ischemia. We also highlight the potential role of colchicine in the suppression of atherosclerosis-induced inflammation, plaque stabilization and thromboembolism prevention. RESULTS: Accumulating evidence suggests that inflammation is of key importance in the pathophysiology of atherosclerotic plaque de-stabilization and thromboembolism, with inflammatory cells being involved in all stages of atherosclerosis development. Therefore, anti-inflammatory therapies targeting the atherosclerotic plaque inflammation may be important contributors in plaque stabilization and in the prevention of thromboembolic events. Colchicine is known to have multiple anti-inflammatory properties including inhibition of microtubule polymerization, leading to reduced secretion in monocyte-macrophages. Currently the randomized controlled CONVINCE trial is enrolling stroke patients to evaluate the effect of a daily low-dose of colchicine in reducing the rate of recurrent stroke and major vascular events. CONCLUSION: Inflammatory pathways seem to be key mediators in the development of atherosclerotic process, atheromatous plaque destabilization and thromboembolism. Colchicine as a novel therapeutic agent could be a safe and effective inhibitor of the inflammation cascade in patients with extra- or intracranial atherosclerosis or arteriolosclerosis, resulting in reduced vascular events. PMID- 29336247 TI - The Role of Colchicine in the Treatment of Autoinflammatory Diseases. AB - Colchicine has been longstanding and widely used for the treatment of acute gout flares and prevention of gout relapses. Its use has been extended to a series of autoinflammatory diseases, such as familial Mediterranean fever and more recently to periodic fever with aphthous stomatitis, pharyngitis and adenitis, Behcet's disease and idiopathic recurrent acute pericarditis. In this review, we summarize current indications of colchicine use, discuss its pharmacokinetics and mechanism of action and examine its use in the treatment of autoinflammatory diseases. Further understanding of the underlying mechanisms of the latter conditions as well as identification of the therapeutic efficacy and treatment target of colchicine may lead to more effective management of these diseases. PMID- 29336248 TI - Immunotheraphy in Allergic Diseases. AB - The prevalence of allergic diseases is increasing worldwide. It is estimated that more than 30% of the world population is now affected by one or more allergic conditions and a high proportion of this increase is in young people. The diagnosis of allergy is dependent on a history of symptoms on exposure to an allergen together with the detection of allergen-specific IgE. Accurate diagnosis of allergies opens up therapeutic options. Allergen specific immunotherapy is the only successful disease-modifying therapy for IgE-mediated allergic diseases. New therapeutic strategies have been developed or are currently under clinical trials. Besides new routes of administration, new types of allergens are being developed. The use of adjuvants may amplify the immune response towards tolerance to the antigens. In this review, we analyze different antigen-specific immunotherapies according to administration route, type of antigens and adjuvants, and we address the special case of food allergy. PMID- 29336249 TI - Mutations of Nuclear and Mitochondrial Genomes as Potential Targets for the Treatment of Metabolic Syndrome. AB - In addition to external factors, such as exercise, food and the environment, genetic predisposition makes great contribution to the development of metabolic disorders and cardiovascular disease. This review is aimed to examine the genetic basis of complex metabolic disorders conventionally described as "metabolic syndrome" (MetS), with the special focus on currently known mutations in the nuclear and mitochondrial genomes, which are associated with both the individual components of MetS and combinations thereof, and also on the studies of the relationship of MetS phenotype as a binary trait. The defects in the mitochondrial genome should be considered as one of the possible genetic reasons leading to MetS. It is known that mitochondrial dysfunction is closely associated with metabolic disorders, as mitochondria are the center of energy metabolism. Consequently, the changes in mitochondrial genes and their functions affect regulation of metabolism. Until now, the role of mitochondrial DNA damage in the development of cardiovascular diseases, age-related and metabolic disorders is still poorly understood. The results of performed studies would help assessing the role of mitochondrial DNA mutations in susceptibility to metabolic syndrome and related metabolic diseases. PMID- 29336250 TI - Colchicum Genus in the Writings of Ancient Greek and Byzantine Physicians. AB - The plants of the Colchicum family were known during the archaic period in Greece for their deleterious properties. Later on, they were used for the treatment of podagra. The treatment was introduced by the ancient Greek physicians and passed on to the Byzantine and Arabian physicians to endure until nowadays. The first plant was most probably named "Medea" from the notorious Colchican witch. As the most common member of the family blossoms in autumn, the plant was named Colchicum autumnale. Various nominations were also used, such as Ephemeron, Hermodactyl, Anima articulorum and Surugen. Our article discusses them, while at the same time presents the most notable authorities who have used Colchicum plants in herbal medicine and toxicology. PMID- 29336251 TI - Isolating Colchicine in 19th Century: An Old Drug Revisited. AB - Colchicine is a tricyclic alkaloid extracted from the herbaceous plant Colchicum autumnale. Known since antiquity for its therapeutic efficacy in the treatment of gout, colchicine was reintroduced in 19th century pharmacopeia, thanks to the work of the French chemists and pharmacists Pierre-Joseph Pelletier (1788-1842) and Joseph Bienaime Caventou (1795-1877) who in 1819, isolated a peculiar substance in the roots of Colchicum autumnale. In 1833, the substance was further analyzed by the German pharmacist and chemist Philipp Lorenz Geiger (1785-1836), who coined the name colchicine. In 1884, the French pharmacist Alfred Houde (1854 1919) produced for the first time pure crystallized colchicine in granules of 1milligram which is still sold under this trade name in several countries. In the last two centuries, colchicine's indications were furthermore expanded. From anti gout drug during antiquity and a diuretic in 19th century, colchicine is currently administered in several affections such as Adamantiades-Behcet's disease, familial Mediterranean fever, pericarditis and atrial fibrillation. PMID- 29336252 TI - Colchicine in Gout: An Update. AB - Despite the fact that colchicine is by far the most ancient treatment for gout, new data are still being gathered. In gout, colchicine's ability to block polymerization of tubulin prevents the activation of the inflammasome. Efficacy of colchicine for the treatment of gout flares has been demonstrated only recently by a randomized- controlled trial, but it still has not been compared to other drugs. Use of colchicine is impaired by the impact of underlying comorbid conditions and drug interactions that can considerably modify its pharmacokinetics and pharmacodynamics. This manuscript reviews the state-of-the art of colchicine in gout, from its known mechanisms of action to its effects, wanted and unwanted, expected and unexpected. PMID- 29336253 TI - Colchicine in Post-operative Atrial Fibrillation: A Review. AB - Post-operative atrial fibrillation (POAF) is a frequent entity increasing hospitalization duration, stroke and mortality. In the recent years, a few studies have sought to investigate the potential effect of colchicine in POAF prevention after cardiac surgery or catheter pulmonary vein isolation for AF. In the present review article, we intend to provide a synopsis of clinical practice guidelines, summarize and critically approach current evidence for or against colchicine as a means of POAF prevention. PMID- 29336254 TI - Colchicine in Neurosurgery. AB - BACKGROUND: Colchicine is an ancient drug. Many uses have been reported in medical books and reports through the centuries. Currently the understanding of its mechanism of action has opened new horizons to its use. OBJECTIVE: This article aims to discuss the use of colchicine in various neurosurgical conditions. METHODS: A pubmed database and clinical trials search was performed, using the key words "colchicine", "Neurosurgery", "low back pain", "stroke" and glioma". RESULTS: Various reports were found contemplating the use of colchicine in chronic low-back pain. The effect of the drug on neutrophil chemotaxis and its role as an anti-inflammatory agent has been the main argument upon which such use of colchicine has been structured. These characteristics have been the key to initiate colchicine as a preventive agent in vascular conditions. Furthermore, as colchicine is an antimitotic drug, it is currently being studied as a potential anti-glioma agent. However, the narrow therapeutic index of the drug is a discouraging factor in clinical application of colchicine in these entities. Therefore, colchicine derivatives that can exert the same effectiveness in lower doses are being studied, forming a new direction in colchicine use. CONCLUSION: Colchicine is a drug that over the years has shown promising results in certain neurosurgical entities. Its derivatives or potential colchicine-like agents might have a more significant place in neurosurgical practice. PMID- 29336255 TI - Fast Screening Technology for Drug Emergency Management: Predicting Suspicious SNPs for ADR with Information Theory-based Models. AB - OBJECTIVE: The genetic polymorphism of Cytochrome P450 (CYP 450) is considered as one of the main causes for adverse drug reactions (ADRs). In order to explore the latent correlations between ADRs and potentially corresponding single-nucleotide polymorphism (SNPs) in CYP450, three algorithms based on information theory are used as the main method to predict the possible relation. METHODS: The study uses a retrospective case-control study to explore the potential relation of ADRs to specific genomic locations and single-nucleotide polymorphism (SNP). The genomic data collected from 53 healthy volunteers are applied for the analysis, another group of genomic data collected from 30 healthy volunteers excluded from the study are used as the control group. The SNPs respective on five loci of CYP2D6*2,*10,*14 and CYP1A2*1C, *1F are detected by the Applied Biosystem 3130xl. The raw data is processed by ChromasPro to detect the specific alleles on the above loci from each sample. The secondary data are reorganized and processed by R combined with the reports of ADRs from clinical reports. Three information theory based algorithms are implemented for the screening task: JMI, CMIM, and mRMR. If a SNP is selected by more than two algorithms, we are confident to conclude that it is related to the corresponding ADR. The selection results are compared with the control decision tree + LASSO regression model. RESULTS: In the study group where ADRs occur, 10 SNPs are considered relevant to the occurrence of a specific ADR by the combined information theory model. In comparison, only 5 SNPs are considered relevant to a specific ADR by the decision tree + LASSO regression model. In addition, the new method detects more relevant pairs of SNP and ADR which are affected by both SNP and dosage. This implies that the new information theory based model is effective to discover correlations of ADRs and CYP 450 SNPs and is helpful in predicting the potential vulnerable genotype for some ADRs. CONCLUSION: The newly proposed information theory based model has superiority performance in detecting the relation between SNP and ADR compared to the decision tree + LASSO regression model. The new model is more sensitive to detect ADRs compared to the old method, while the old method is more reliable. Therefore, the selection criteria for selecting algorithms should depend on the pragmatic needs. PMID- 29336256 TI - Mushrooms as Potent Sources of New Biofungicides. AB - BACKGROUND: Microfungi are causal agents of numerous diseases and disorders of agricultural plants, farm mushrooms and animals as well as human, which results are serious global reduction of the food amount, decrease of life quality, the severe life-threatening diseases and enormous economic losses. METHODS: In spite of organism innate ability to combat against pathogens, in invasions of some pathogens, support of additional antimycotic agents to defence system is required. Nowadays, common "fighters" against the microfungi are numerous synthetic fungicides that, besides benefits, have also side effects on host and environment and can cause the development of fungicide resistance in the pathogens. Therefore, the creation of new natural fungicides with different modes of action, strengthening the defense system and increase of organism resistance to pathogens are the main requirements of modern society. RESULTS: Numerous mushrooms produce chemically various intra- and extracellular metabolites with antifungal potential, among which the most potent ones are polysaccharides, proteins, and phenolic compounds. They act as immunostimulators, inhibitors of pathogen development and virulence and/or activators of pathogens' autolytic system. CONCLUSION: Therefore, mushroom-based antimycotic agents could be successfully applied in the diseases treatments as accessories or alternatives to commercial therapies and in such a way contribute to environmentally friendly combat against pathogens, i.e. decrease or complete substitution of commercial synthetic fungicides with natural ones. PMID- 29336257 TI - Medium Optimization for Recombinant Soluble Arginine Deiminase Expression in Escherichia coli Using Response Surface Methodology. AB - OBJECTIVE: Optimization of the medium for recombinant arginine deiminase production in E. coli was performed using response surface methodology. This is the first study of optimization of recombinant arginine deiminase production in E. coli by the use of response surface methodology. METHODS: A Mycoplasm arginine deiminase gene was computationally optimized and inserted into pET-3a (+) expression vector. The synthetic pET3a-arginine deiminase construct was cloned and overexpressed in E. coli. The effect of glucose, NH4Cl and MgSO4.7H2O concentrations on the expression of intracellular soluble arginine deiminase was investigated using central composite design (CCD). RESULTS: The maximum arginine deiminase activity (U/mL) was obtained in optimal concentrations g/L of glucose, 6.6; NH4Cl, 1.81; MgSO4.7H2O, 0.94; KH2PO4, 3.0; Na2HPO4, 6.78; NaCl, 0.5; CaCl2, 0.1 mL/L (1M), which was about 6.6 fold higher than that in M9 standard medium. CONCLUSION: The obtained result can be utilized for large-scale production of this enzyme and related recombinant protein. PMID- 29336258 TI - Association of Thrombospondin-1 (N700S) and Thrombospondin-4 (A387P) Gene Polymorphisms with the Incidence of Acute Myocardial Infarction in Egyptians AB - BACKGROUND: Thrombospondin (TSP) 1 and 4 are extracellular matrix glycoproteins that me-diate cell proliferation, platelet aggregation and inflammatory response. Conflicting data addressed thepossible contribution of TSP-1 and TSP-4 gene polymorphisms to acute myocardial infarction (AMI). OBJECTIVE: Our study aimed to examine the association of TSP-1 (N700S) and TSP-4 (A387P) geneticvariants with the incidence of AMI in Egyptians. It also correlated TSP-1 variants to TSP-1 and TNF-alphaserum concentrations while TSP-4 variants to IL-8 concentration identifying TSPs' contribution to vascular inflammation. METHODS: Genotyping was done in 214 subjects; 114 AMI patients and 100 controls using PCR-RFLPanalysis. Serum Tsp-1, TNF-alpha and IL-8 levels were measured by ELISA assay. RESULTS: For TSP-4, (GC and CC) genotype distribution and the (C) allele frequency were significantlyhigher in AMI patients than controls (p = 0.0186), (p = 0.0117) respectively. In contrast, TSP-1 genotypesand allele frequencies showed no significant difference between AMI and controls (p = 0.7124 and p =0.7201, respectively). Serum TSP-1, TNF-alpha and IL-8 concentrations were significantly elevated in AMIcompared to controls (p = 0.0146, p < 0.0001 and p = 0.0057) respectively. Serum IL-8 levels had a significant difference among TSP-4 genotypes (p= 0.0368), being highest in the mutant C allele. SerumTSP-1 and TNF alpha concentrations showed no significant difference among TSP-1 genotypes, but therewas a positive correlation between both concentrations in AMI patients (p = 0.0014), (r = 0.4125). CONCLUSION: TSP-4 A387P polymorphism, but not TSP-1 polymorphism, is an independent risk factorfor AMI in the Egyptians. PMID- 29336259 TI - p53 as the Focus of Gene Therapy: Past, Present and Future. AB - BACKGROUND: Several gene deviations can be responsible for triggering oncogenic processes. However, mutations in tumour suppressor genes are usually more associated to malignant diseases, with p53 being one of the most affected and studied element. p53 is implicated in a number of known cellular functions, including DNA damage repair, cell cycle arrest in G1/S and G2/M and apoptosis, being an interesting target for cancer treatment. OBJECTIVE: Considering these facts, the development of gene therapy approaches focused on p53 expression and regulation seems to be a promising strategy for cancer therapy. RESULTS: Several studies have shown that transfection of cancer cells with wild-type p53 expressing plasmids could directly drive cells into apoptosis and/or growth arrest, suggesting that a gene therapy approach for cancer treatment can be based on the re-establishment of the normal p53 expression levels and function. Up until now, several clinical research studies using viral and non-viral vectors delivering p53 genes, isolated or combined with other therapeutic agents, have been accomplished and there are already in the market, therapies based on the use of this gene. CONCLUSION: This review summarizes the different methods used to deliver and/or target the p53 as well as the main results of therapeutic effect obtained with the different strategies applied. Finally, the ongoing approaches are described, also focusing on the combinatorial therapeutics to show increased therapeutic potential of combining gene therapy vectors with chemo or radiotherapy. PMID- 29336260 TI - Adipocytes and Abdominal Aortic Aneurysm: Putative Potential Role of Adipocytes in the Process of AAA Development. AB - BACKGROUND: Adipose tissue plays a role in the storage of excess energy as triglycerides (TGs). Excess fat accumulation causes various metabolic and cardiovascular diseases. It has been reported that ectopic fat deposition and excess TG accumulation in non-adipose tissue might be important predictors of cardiometabolic and vascular risk. For example, ectopic fat in perivascular tissue promotes atherosclerotic plaque formation in the arterial wall. OBJECTIVE: Recently, it has been reported that ectopic fat (adipocyte) in the vascular wall of an abdominal aortic aneurysm (AAA) is present in both human and experimental animal models. The pathological significance of adipocytes in the AAA wall has not been fully understood. In this review, we summarized the functions of adipocytes and discussed potential new drugs that target vascular adipocytes for AAA treatment. RESULT: Previous studies suggest that adipocytes in vascular wall play an important role in the development of AAA. CONCLUSION: Adipocytes in the vascular wall could be novel targets for the development of AAA therapeutic drugs. PMID- 29336261 TI - Formulation and Investigation of a Lipid Based Delivery System Containing Antimicrobials for the Treatment of Periodontal Disease. AB - BACKGROUND: Periodontitis is a chronic inflammatory disease, which affects the supporting tissues of the teeth, and without proper treatment it may lead to tooth loss. Antibiotics - administered orally - have been widely used in the treatment of periodontitis. With the conventional administration routes, adequate drug levels cannot be reached in the periodontal pockets and oral application of antimicrobials could lead to side effects. Drug delivery systems containing antibiotics, administered at the site of infection, could possibly help eliminate pathogen bacteria and treat periodontitis. OBJECTIVE: The aim of the recent study was to create a locally swellable, biodegradable, biocompatible, mucoadhesive, lipophilic drug delivery system containing antimicrobial drugs which softens at body temperature, accommodate to the shape of the periodontal pocket and can provide extended drug release for at least one week. METHODS: During the formulation, thermoanalytical, consistency, wettability, swelling, degradation and drug release studies were applied to determine the ideal ratios of lipid bases, structure-building components and surface active agent concentrations. RESULTS AND DISCUSSION: The structure-building component cetostearyl alcohol appeared to be the most convenient, thanks to its wettability and mechanical properties, which led to controlled drug release. With the use of ideal concentrations of components (10% surfactant, 40% structure-building component, 32 % lipid base, 15% antimicrobial agent and 3% polymer), sustained drug release can be provided up to nearly 3 weeks. PMID- 29336262 TI - Ethosomes as Novel Vesicular Carrier: An Overview of the Principle, Preparation and its Applications. AB - BACKGROUND: In the study of lipid vesicular carriers in permeation enhancement of drug molecules across skin after the success story of liposomes, ethosomes are a recent addition. There are a number of published reviews but still, there is a lack of reviews representing various aspects in a systematic way with a detailed description of current research works. This review serves to fill this deficiency along with special emphasize on its preparation methods and applications. METHODS: Information was collected from previously published literatures which were represented after analysis in terms of various aspects such as principles, composition, preparation, mechanism of penetration, modified forms, characterization, marketed preparations and its applications. RESULT: This review is represented in an informative and easily understandable way. Basic principles and background were covered in the introduction section. Composition section contains the basic components of formulations along with the impact of various parameters on the characterization of the ethosome. A detailed discussion of all the methods along with their own utility is elaborately provided. Various aspects of characterization studies of ethosomes are also discussed. Therapeutic and cosmetic applications of ethosomes are also outlined here. CONCLUSION: In spite of having a excellent permeation-enhancing and targeted drug release profile, ethosome suffers from limited commercialization. Various challenges regarding their commercialization and product development are also discussed in this review with an objective of acting as a directional route for the researchers. PMID- 29336263 TI - In vitro Methods for In vitro-In vivo Correlation (IVIVC) for Poorly Water Soluble Drugs: Lipid Based Formulation Perspective. AB - A great number of new drug candidates identified from the discovery pipeline are poorly water soluble, which is a drawback to bring such candidates into the pharmaceutical market. Formulating these compounds as self emulsifying/microemulsifying/ nanoemulsifying drug delivery systems (SEDDS/SMEDDS/SNEDDS) within lipid based formulations is of growing interest. Some of the recent studies have resulted in commercial products that provided improved bioavailability and dissolution due to the better dispersion properties of SEDDS/SMEDDS/SNEDDS. An ongoing challenge that the pharmaceutical industry is facing is identifying in vitro tests that are needed in order to predict the behavior of dosage forms in the GI tract. The goal of the current review is to present the various levels of in vitro-in vivo correlations (IVIVCs) and to provide tools on the utilization of the IVIVCs in product development and optimization of SEDDS/SMEDDS/SNEDDS. PMID- 29336264 TI - Taxifolin: Evaluation Through Ex vivo Permeations on Human Skin and Porcine Vaginal Mucosa. AB - BACKGROUND: Taxifolin (TAX) is a flavonoid that has numerous pharmacological properties, including an antioxidant ability superior to that of other flavonoids due to its particular structure. Nevertheless, it has low oral bioavailability, which limits its therapeutic application. In this context, potentially important approaches for systemic drug delivery could be by alternative routes such as skin and vaginal mucosa, once both routes have a variety of advantages compared with the oral route, including the ability to bypass both first-pass hepatic metabolism and the consequent degradation in the gastrointestinal tract. Vaginal delivery could also account for a local effect, or an effect on circumvent microregion. OBJECTIVE: The major objective of this study was to develop and validate a high-performance liquid chromatography (HPLC) method for the determination of TAX in a semisolid dosage forms and then to evaluate ex vivo permeations across porcine vaginal mucosa and human skin. METHODS: TAX was incorporated into an oil-in-water emulsion developed previously by our group. Method for quantification was developed and validated using HPLC. Permeation through human skin and vaginal porcine mucosa were conducted in Franz-type cells. RESULTS: The method was precise (CV < 5%), accurate (recovery between 98% and 102%), linear (R2> 0.99), specific, and robust. Permeation experiments through porcine vaginal mucosa and human skin presented permeated percentages equal to 87.43% and 48.09% (per dose), respectively. CONCLUSION: The results suggest that, in the matrixes studied, TAX may be able to exert its biological activities systemically when applied by these routes. Furthermore, it exhibits greater permeability potential when administered by intravaginal route. PMID- 29336265 TI - Efficacy of Aloe vera/ Plantago major gel in Diabetic Foot Ulcer: a randomized double-blind clinical trial. AB - BACKGROUND: Diabetic foot ulcer (DFU) is one of the most common complications of diabetic patients. Mostly, non-healing DFU leads to infection, gangrene, amputation and even death. High costs and poor healing of the wounds need a new treatment such as alternative medicine. So, the aim of this study was to evaluate the efficacy of Aloe vera/ Plantago major gel (Plantavera gel) in healing of DFU. METHODS: Forty patients with DFU enrolled in a double-blind randomized clinical trial. The patients who were randomly assigned into the intervention group (n = 20), received topical Plantavera gel in addition to the routine cares, whereas the patients in the control group (n = 20), received topical Placebo gel in addition to the routine cares. Intervention was done twice a day for 4 weeks in the both groups. Photography and an evaluation of DFU healing were conducted by a checklist and then were scored at baseline and at the end of each week. The collected data was analyzed by SPSS software. RESULTS: At the end of the study, there was a significant difference between the two groups in terms of total ulcer score (P<0.001) and Plantavera gel significantly reduced the ulcer surface comparing with the control group (P=0.039). However, there was not a significant difference between the two groups (P=0.263) in terms of the ulcer depth. During this study, no side effect was observed for Plantavera gel in the intervention group. CONCLUSION: Topical Plantavera gel seems to be an effective, cheap and safe treatment. Of course, further studies are required to confirm the properties of the wound healing of this gel. PMID- 29336266 TI - Design, Synthesis, Evaluation and Computational Studies of Nipecotic Acid Acetonaphthone Hybrids as Potential Antiepileptic Agents. AB - BACKGROUND: Nipecotic acid is considered to be one of the most potent inhibitors of neuronal and glial gamma-aminobutyric acid (GABA) uptake in vitro. However, nipecotic acid does not readily cross the blood-brain barrier (BBB) following peripheral administration, owing to its hydrophilic nature. OBJECTIVE: A series of substituted acetonaphthones tethered nipecotic acid derivatives were designed and synthesized with an aim to improve the lipophilicity and the blood-brain barrier (BBB) permeation. METHODS: Synthesized compounds were tested in mice models of PTZ, pilocarpine, and DMCM induced epilepsy, in vivo. The rota-rod test was performed to determine the acute neurotoxicity of the potential leads (4a, 4b, and 4i). These potential hybrids were also evaluated for their ability to cross the BBB by an in vitro parallel artificial membrane permeability BBB assay (PAMPA-BBB). The leads were subjected to in silico molecular docking and dynamics studies on homology modelled protein of human GABA (gamma-amino butyric acid) transporter 1 (GAT1) and prediction of their pharmacokinetic properties. RESULT: Amongst the synthesized derivatives, compounds 3a, 3b, 3i, 4a, 4b, and 4i exhibited increased latency of seizures against subcutaneous pentylenetetrazole (scPTZ) induced seizures in mice. Derivatives 4a, 4b, 4i were more effective compared to nipecotic acid ester counterparts 3a, 3b and 3i placing the importance of the presence of free carboxyl group in the centre. The findings revealed that 4i was comparatively more permeable (Pe= 8.89) across BBB than the standard tiagabine (Pe= 7.86). In silico studies proved the consensual interactions of compound 4i with the active binding pocket. CONCLUSION: Some nipecotic acid-acetonaphthone hybrids with considerable anti-epileptic activity, drug like properties and the ability to permeate the BBB have been successfully synthesized. PMID- 29336267 TI - Stem Cells Derived from Amniotic Fluid: A Potential Pluripotent-Like Cell Source for Cellular Therapy? AB - BACKGROUND: Regenerative medicine aims to provide therapeutic treatment for disease or injury, and cell-based therapy is a newer therapeutic approach different from conventional medicine. Ethical issues that rose by the utilisation of human embryonic stem cells (hESC) and the limited capacity of adult stem cells, however, hinder the application of these stem cells in regenerative medicine. Recently, isolation and characterisation of c-kit positive cells from human amniotic fluid, which possess intermediate characteristics between hESCs and adult stem cells, provided a new approach towards realising their promise for fetal and adult regenerative medicine. Despite the number of studies that have been initiated to characterize their molecular signature, research on developing approaches to maintain and enhance their regenerative potential is urgently needed and must be developed. AIM: Thus, this review is focused on understanding their potential uses and factors influencing their pluripotent status in vitro. CONCLUSION: In short, this cell source could be an ideal cellular resource for pluripotent cells for potential applications in allogeneic cellular replacement therapies, fetal tissue engineering, pharmaceutical screening, and in disease modelling. PMID- 29336268 TI - Anaplastic Lymphoma Kinase in Glioblastoma: Detection/Diagnostic Methods and Therapeutic Options. AB - BACKGROUND: Glioblastoma (GBM) is the most aggressive and common brain tumor in adults, currently lacking effective life-prolonging and recurrence-preventing therapy; median survival of GBM patients stands at only 14-16 months. Increasing lines of evidence indicate that Anaplastic lymphoma kinase (ALK), a druggable tyrosine kinase receptor over-expressed in GBM, represents a potential therapeutic target in this tumor. OBJECTIVE: An overview of the state of the art and the existing recent patents regarding potential exploitation of ALK as a therapeutic target and/or diagnostic/prognostic factor in GBM. METHOD: Recent literature and patents focusing on or including ALK pre-clinical and clinical research in GBM have been identified and reviewed, and are discussed according to their potential use. RESULTS: Numerous recent ALK-related patents were identified. They were reviewed/analyzed in relation to previously published research and categorized based on their potential in GBM: i) diagnosis/ prognosis, ii) drug-based therapeutic targeting of ALK using a single compound or combination schemes and iii) therapeutic ALK targeting by other means, e.g. ALK vaccination. CONCLUSION: ALK targeting holds promise as a novel therapeutic approach in GBM, especially in combination schemes allowing multi-target therapy. Such schemes may incorporate detection-guided therapy and utilize next generation inhibitory compounds with improved central nervous system penetration. Moreover, identification of ALK-mediated molecular pathway(s) related to GBM carcinogenesis/ pathology and putative therapy resistance is of high priority and warrants further exploitation. PMID- 29336269 TI - Design, Synthesis, and Biological Evaluation of New Azole Derivatives as Potent Aromatase Inhibitors with Potential Effects against Breast Cancer. AB - PURPOSE: Some aromatase inhibitors are FDA-approved agents as first-line therapy in the treatment of endocrine-responsive breast cancer. In this study, we aimed to develop new azole derivatives with higher specificity and potency. METHODS: New aromatase inhibitors were designed by Molecular Operating Environment (MOE) software and synthesized in a one-step SN2 reaction. These compounds were characterized by melting point, 1H- and 13C-NMR, elemental analysis and mass spectra. The in-vitro and in-vivo aromatase inhibition of these compounds was evaluated using the Estrone ELISA assay, and by measuring the inhibition of androstenedione-induced uterine hypertrophy. The selectivity of aromatase inhibition was investigated by the inhibition of ACTH stimulation on the plasma concentrations of aldosterone and cortisol. RESULTS: Docking simulations showed that four new azole derivatives could efficiently interact with enzyme active sites. The in-vitro aromatase-inhibition assay showed that the compounds 1,3,5 tris(imidazol-1-ylmethyl)benzene (3b) and 1,3-Bis(imidazole-1- ylmethyl) benzene (3d) effectively inhibited aromatase, with IC50 values of 0.2 nM and 6.8 nM, respectively; these values were similar to known aromatase inhibitor letrozole (IC50 0.3 nM). The in-vivo aromatase-inhibitory potency of compound 3b was similar to letrozole, although compound 3b acted more selectively. CONCLUSION: This report introduced a new compound that can be considered as a new lead for further investigation to explore more-potent and more-selective aromatase inhibitors. PMID- 29336270 TI - In silico Structure-based Identification of Novel Acetylcholinesterase Inhibitors Against Alzheimer's Disease. AB - OBJECTIVE AND BACKGROUND: Inhibition of acetylcholinesterase (AChE) has gained much importance since the discovery of the involvement of peripheral anionic site as an allosteric regulator of AChE. Characterized by the formation of beta amyloid plaques, Alzheimer's disease (AD) is currently one of the leading causes of death across the world. Progression in this neurodegenerative disorder causes deficit in the cholinergic activity that leads towards cognitive decline. Therapeutic interventions in AD are largely focused upon AChE inhibitors designed essentially to prevent the loss of cholinergic function. The multifactorial AD pathology calls for Multitarget-directed ligands (MTDLs) to follow up on various components of the disease. Considering this approach, other related AD targets were also selected. Structure-based virtual screening was relied upon for the identification of lead compounds with anti-AD effect. METHOD: Several chemoinformatics approaches were used in this study, reporting four multi-target inhibitors: MCULE-7149246649-0-1, MCULE-6730554226-0-4, MCULE-1176268617-0-6 and MCULE-8592892575-0-1 with high binding energies that indicate better AChE inhibitory activity. Additional in-silico analysis hypothesized the abundant presence of aromatic interactions to be pivotal for interaction of selected compounds to the acetyl-cholinesterase. Additionally, we presented an alternative approach to determine protein-ligand stability by calculating the Gibbs-free energy change over time. Furthermore, this allows to rank potential hits for further in-vitro testing. RESULTS AND CONCLUSION: With no predicted indication of adverse effects on humans, this study unravels four active multi-target inhibitors against AChE with promising affinities and good ADMET profile for the potential use in AD treatment. PMID- 29336271 TI - Anti-Inflammatory Drugs and Herbs with Special Emphasis on Herbal Medicines for Countering Inflammatory Diseases and Disorders - A Review. AB - BACKGROUND: Diseases with inflammatory etiopathology have increased in incidence in recent times. Drugs used for therapeutic management of such inflammatory diseases are relieving the ailment but at the same time also countering serious life threatening consequences. Moreover, they are costly and rarely available at all places. In this context, research and development on medicinal herbs have opened a new era in the prophylactic and therapeutic management of inflammatory diseases. OBJECTIVE: To highlight the importance of anti-inflammatory medicine synthetic drugs and natural herbs, their constituents, mechanism of action, benefits, side effects and future prospects. The overall aim is to provide better health services to patients regardless of their background on equality basis. RESULTS: Anti-inflammatory herbs have proven beneficial by combating inflammatory responses that lead to severe abnormality in body systems. Inflammation though a protective response to infection or injury and may result in pathological outcome when aggravated or of severe degree thus needs an early intervention for proper resolution. Medicinal plants or their constituents are considered beneficial due to the properties i.e., satisfactory potency, ease of availability, cheapness, less or no side effects, safer and efficient as compared to the synthetic counterparts. These medicinal herbs contain phytoconstituents that can prevent undesirable inflammatory processes and also posses anti-inflammatory activity. Steroids, glycosides, phenolics, flavonoids, alkaloids, polysaccharides, terpenoids, cannabinoids, fatty acids are common phytoconstituents present in these plants. Different mechanisms have been explored for the anti-inflammatory action of these active ingredients. They may synergize the anti-inflammatory pathway enzymes, factors, proteins or interfere with these in the inflammatory pathway like lipooxygenases, cyclooxygenases, tumor necrosis factors, interleukins, prostaglandin, nitric oxide, mitogenactivated protein, nuclear factor, etc. Considering all the above-mentioned factors, further research from molecular to cellular level will enable a better understanding of the mechanisms. Common antiinflammatory herbal plants are Curcuma longa, Zingiber officinale, Rosmarinus officinalis, Borago officinalis, Urtica dioica, Uncaria tomentosa, Vaccinium myrtillus, Olea europaea and much more. They are believed to be without side effects unlike the chemical counterparts or synthetic anti-inflammatory agents e.g. steroids, nonsteroid anti-inflammatory drugs, and immunosuppresants used for controlling and suppressing inflammatory crisis. A proper phytochemical, pharmacological and physiological evaluation will enable their safe and effective use in inflammatory conditions. Many of these anti-inflammatory drugs and herbal preparations have been patented with some under consideration. CONCLUSION: Natural herbs are safe, effective and better options as anti-inflammatory agents than synthetic ones. The phytoconstituents are as effective with the comparable mechanism of action as synthetic molecules. Future research should focus on molecular mechanisms of different beneficial applications of these herbal plants in various diseases. Recent patents on anti-inflammatory drugs and herbal plants have been covered which provide insight into the current status and future prospects in this field. PMID- 29336273 TI - Medications Are Risky Business. PMID- 29336272 TI - Let-7 miRNA Precursors Co-express with LIN28B in Cervical Cells. AB - BACKGROUND: The let-7 microRNAs (miRNAs) are frequently dysregulated in carcinogenic processes, including cervical cancer. LIN28 proteins regulate let-7 biogenesis by binding to conserved sequences within the pre-miRNA structure. Nevertheless, recent research has shown that some let-7 miRNAs may escape LIN28 regulation. OBJECTIVE: Correlate pre-let-7 miRNAs and LIN28B levels in cervical cell lines with different malignancy and HPV content. METHODS: Pre-let-7 levels were determined by RTqPCR. LIN28B and other let-7 targets were analyzed by immunoblot. In silico tools were used to correlate let-7 and LIN28B expression and to analyze prelet- 7 sequences and structures. RESULTS: Lin28B protein was detected in all tested cell lines although it was more expressed in tumor cell lines. High levels of pre-let-7c/f-1 and pre-miR-98 were present in almost all cell lines regardless malignancy and LIN28B expression. Pre-let-7g/i were mainly expressed in tumor cell lines, pre-let-7e and pre-let-7-a3 were absent in all cell lines and pre-let-7a-2 showed indistinct expression. LIN28B showed positive correlation with pre-let-7i/g/f-1 and pre-miR-98 in tumor cell lines, suggesting escape from regulation. Sequence alignment and analysis of pre-let-7 miRNAs showed distinctive structural features within the preE region that may influence the ideal pre-let-7 structuring for LIN28B interaction. Short preE-stems were present in pre-let-7 that may escape LIN28B regulation, but long preEstems were mostly associated with high-level pre-let-7 miRNAs. CONCLUSION: The observed differences of pre-let-7 levels in cervical cell lines may be the result of alternative preE structuring affecting interaction with LIN28B thus resulting in differential let-7 regulation. PMID- 29336274 TI - Controlling Diabetes: Continuous Glucose Monitoring for the Older Adult. AB - Obtaining and maintaining adequate blood glucose control in the older adult with diabetes offers unique challenges. Intensive blood glucose control can increase the risk of hypoglycemia, which can be particularly risky in the older adult. Adding and adjusting diabetes medications in elderly patients with multiple comorbidities and numerous other medications can also be challenging. The use of professional continuous glucose monitors-which are worn by the patient for up to two weeks and record blood sugars every 5 to 15 minutes-provides pharmacists and other health care professionals with valuable data for managing the care of the older adult with diabetes. PMID- 29336275 TI - Clinical Research That Matters: Designing Outcome-Based Research for Older Adults to Qualify for Systematic Reviews and Meta-Analyses. AB - Though older adults are more sensitive to the effects of medications than their younger counterparts, they are often excluded from manufacturer-based clinical studies. Practice-based research is a practical method to identify medication related effects in older patients. This research also highlights the role of a pharmacist in improving care in this population. A single study rarely has strong enough evidence to change geriatric practice, unless it is a large-scale, multisite, randomized controlled trial that specifically targets older adults. It is important to design studies that may be used in systematic reviews or meta analyses that build a stronger evidence base. Recent literature has documented a gap in advanced pharmacist training pertaining to research skills. In this paper, we hope to fill some of the educational gaps related to research in older adults. We define best practices when deciding on the type of study, inclusion and exclusion criteria, design of the intervention, how outcomes are measured, and how results are reported. Well-designed studies increase the pool of available data to further document the important role that pharmacists have in optimizing care of older patients. PMID- 29336276 TI - Streamlining the Medication Review Process by Use of a New Review Tool: CHART. AB - OBJECTIVE: The Carlson-Hamilton Adult Medication Review Tool (CHART) represents an effort to improve the approach to geriatric care by streamlining the medication review process and identifying potential medication issues that may be relevant to patient's cognitive presentation and impact clinical decision making. SETTING: CHART was created at a behavioral health facility. The most common primary diagnoses on this unit include new onset psychosis and recent mental status changes. PRACTICE DESCRIPTION: This facility contains 155 beds divided into six units. The geriatric unit has an average census of 10 patients, with an average length of stay of 10 to 12 days. PRACTICE INNOVATION: This site is working to improve geriatric patient care by simplifying and streamlining the medication review process. MAIN OUTCOME MEASUREMENTS: The pharmacy team evaluated change in medication burden and change in medication review requests. RESULTS: Following implementation, this facility saw both a decreased medication burden and an increase in medication review requests. CONCLUSION: CHART is a tool that allows pharmacists and student pharmacists to streamline the review of medications and make recommendations. PMID- 29336277 TI - Evaluation of Hypoglycemia and Potential Risk Factors in a Veterans Affairs Community Living Center. AB - OBJECTIVES: To describe hypoglycemic events in a Veterans Affairs (VA) community living center (CLC) population and to determine predictive risk factors associated with hypoglycemia. DESIGN: Retrospective, exploratory, observational chart review. SETTING: Tertiary-care VA Healthcare System CLC. PATIENTS: Residents residing in a VA CLC with at least one active order for insulin between June 1, 2009, and June 30, 2013, were evaluated over a 90-day study period. MAIN OUTCOME MEASURES: The primary outcome was the number of days to the first hypoglycemic event as described by the survival curve analysis. The secondary outcomes included the overall incidence of hypoglycemia, the association of potential risk factors on the proportion of hypoglycemic events, and the association of potential risk factors on the development of an additional hypoglycemic event. RESULTS: There was a 49% incidence of a hypoglycemic event in the 90-day study period with a 24% incidence within the first 7 days of resident admission, representing approximately half of all events that occurred. The only statistically significant risk factor for having a hypoglycemic event was the number of units of insulin/kg/day (hazard ratio = 1.008, 95% confidence interval 1.001, 1.015; P = 0.0317) that a resident was prescribed. CONCLUSIONS: Residents are at increased risk for hypoglycemia within the first seven days of admission to a CLC. It is imperative that providers closely monitor and reevaluate antidiabetic regimens at this time of transition. PMID- 29336278 TI - Use of 2015 Beers Criteria Medications by Older Medicare Beneficiaries. AB - OBJECTIVE: To examine the prevalence of potentially inappropriate medications (PIMs) in community-dwelling Medicare beneficiaries based on the updated 2015 American Geriatrics Society Beers criteria. DESIGN: Cross-sectional study. SETTING: Thirteen mobile Medicare clinics were held throughout Northern and Central California during the fall of 2015. PATIENTS, PARTICIPANTS: Noninstitutionalized Medicare beneficiaries 65 years of age and older taking one or more medications. INTERVENTIONS: Pharmacy students under direct supervision of licensed pharmacists performed medication therapy management (MTM). Drug and disease state data were collected and used to identify PIMs based on the 2015 Beers criteria. MAIN OUTCOME MEASURES: Number of beneficiaries who are taking a PIM, have a potential drug-drug or drug-disease interaction, and common factors associated with receiving a PIM. RESULTS: MTM services were provided to 703 beneficiaries 65 years of age or older taking 1 or more medications. In total, 204 (29%) beneficiaries were taking 1 or more PIM. Drug-drug interactions were found in 54 beneficiaries, and 12 beneficiaries were found to have a significant drug-disease interaction. PIM prescribing was associated with certain chronic conditions (e.g., pain and insomnia). The prevalence of PIM use was significantly higher in women compared with men, whites compared with non-whites, and low income beneficiaries compared with high income. CONCLUSION: Prescribers and pharmacists should work in concert to minimize PIM use in older adults. Practitioners knowledgeable about the updated 2015 Beers criteria may monitor drug use more closely, hopefully minimizing potentially harmful drug and/or disease-state problems, and preventing avoidable health-related sequelae. PMID- 29336279 TI - CMS Proposes Sweeping Medicare Rule. PMID- 29336280 TI - Open access: Is there a predator at the door? PMID- 29336281 TI - Naive and effector B-cell subtypes are increased in chronic rhinosinusitis with polyps. AB - BACKGROUND: Recent studies demonstrated that B cells and their chemoattractants are elevated in the nasal mucosa of patients with chronic rhinosinusitis (CRS) with nasal polyposis (CRSwNP). However, the presence of naive B cells and of plasmablasts and memory B-cell subsets in the mucosa and periphery of the same patient with CRS is yet to be characterized. OBJECTIVE: Here we sought to quantify naive, plasmablasts, and memory B cells in mucosal tissue and peripheral blood of patients with CRSwNP, patients with CRS without nasal polyps (CRSsNP), and control patients. METHODS: Polyps, mucosa, and peripheral blood samples were prospectively collected from the patients with CRS and from the non-CRS controls. We used flow cytometry to distinguish among naive, plasmablast, and memory B cells in sinus tissue and peripheral blood. RESULTS: A total of 45 patients were recruited for the study. The patients with CRSwNP had significantly increased mucosal B-cell numbers versus the controls (3.39 +/- 4.05% versus 0.39 +/- 1.05% of live cells; p < 0.01, Kruskal-Wallis test), which included naive B cells (0.61 +/- 0.94 versus 0.11 +/- 0.24% of live cells; p < 0.03, Kruskal-Wallis test), plasmablasts (0.06 +/- 0.26 versus 0.00 +/- 0.00% of live cells; p < 0.055, Kruskal-Wallis test), and memory B cells (0.62 +/- 1.26 versus 0.05 +/- 0.15% of live cells; p < 0.02, Kruskal-Wallis test). CONCLUSION: Our study identified increased frequencies of different B-cell subtypes in the mucosa of patients with CRSwNP but not in the peripheral blood. We also found that patients with CRSwNP had significantly increased B-cell subtypes compared with the patients with CRSsNP and the controls. These results implied a potential role for mucosal B cells in the ongoing inflammation in patients with CRSwNP. PMID- 29336283 TI - Headaches and facial pain in rhinology. AB - "Sinus headache" is a common chief complaint that often leads patients to an otolaryngologist's office. Because facial pain may or may not be sinogenic in origin, the otolaryngologist should be equipped to evaluate and treat or to appropriately refer these patients. Analysis of current data indicates that the majority of patients who present with sinus headaches actually have migraines. Furthermore, the downstream effect of the cytokine cascade initiated in migraine physiology can cause rhinologic symptoms, including rhinorrhea, congestion, and lacrimation, which may also confound diagnosis. Other causes of sinus headache include the following: cluster headaches, Sluder neuralgia, trigeminal neuralgia, myofascial trigger point pain (tension headaches, temporomandibular joint dysfunction), and contact point headaches. The diagnostic dilemma for an otolaryngologist occurs when a patient has facial pain and symptoms that may indicate chronic rhinosinusitis but with nondiagnostic endoscopy. Traditionally, these patients have been primarily managed with empiric antibiotics. An alternative strategy is to first screen these patients with an upfront computed tomography. This algorithm may ultimately decrease cost; avert unnecessary antibiotics prescriptions; and prompt more timely referrals to other, more appropriate, disciplines, such as neurology, dentistry, and/or pain management specialists. PMID- 29336282 TI - Role of group 2 innate lymphocytes in aspirin-exacerbated respiratory disease pathogenesis. AB - Aspirin-exacerbated respiratory disease (AERD) is characterized by chronic eosinophilic nasal polyps, asthma, and airway reactions upon cyclooxygenase (COX) 1 inhibition. AERD is present in up to 7% of adult patients with asthma and the underlying pathogenesis remains largely elusive but prostaglandin D2, cysteinyl leukotrienes, mast cells, and type 2 cytokines are thought to contribute. A wealth of studies have recently implicated group 2 innate lymphoid cells (ILC2), a novel lineage-negative lymphocyte population that produces type 2 cytokines, in human allergic disease pathogenesis. Importantly, our recent work identified that ILC2s are recruited to the nasal mucosa of patients on AERD after COX-1 inhibitor administration. Here, we review the potential impact of ILC2s in the development and propagation of type 2 inflammation in AERD. PMID- 29336284 TI - Assessing the onset of allergic rhinitis by nasal cytology and immunoglobulin E antibody levels in children. AB - BACKGROUND: It is difficult to identify the onset of allergic rhinitis in infants because making a conclusive diagnosis can be challenging. OBJECTIVE: We used a combination of cell differentials in nasal swabs and immunoglobulin E (sIgE) antibody values to food and inhalant allergens to make the diagnosis and identify relevant allergens for investigation of the onset of allergic rhinitis. METHODS: We studied 302 children, 2 to 120 months old, who visited our clinic for rhinorrhea. Nasal swabs were taken from all children, and neutrophils (N), eosinophils (Eo), and mast cells (Mc) were identified by nasal cytology and their numbers were estimated. Levels of sIgE antibodies to various food and inhalant allergens were determined in patients with nasal Eo and Mc. RESULTS: Percentages of participants with Eo-Mc and Eo-Mc-N at 2-14 (n = 84), 15-24 (n = 57), 25-60 (n = 73), and 61-120 months of age (n = 88) were 20, 23, 58, and 65%, respectively. There were no significant differences between the 2-14 and 15-24, and 25-60 and 61-120 months age groups, but there was a significant difference between the 15 24 and 25-60 months age groups (p = 0.00013). The percentages of participants with sIgE antibodies to food and inhalant allergens as solitary or main allergen were 12%/0% at 2-14 months old, 10.5%/7% at 15-24 months old, 1.3%/42.4% at 25-60 months old, and 0%/56.8% at 61-120 months old, respectively with a significant difference between 15-24 and 25-60 months old groups (p = 0.00025) for inhalant allergens. CONCLUSION: Allergic rhinitis associated with inhalant allergens in infants <15 months of age is rare, but it is tempting to postulate that symptoms of rhinitis in these infants may be associated with sIgE antibodies to food allergens. Transition of sIgE responses from food to inhalant allergens occurred after 15 months of age, and sIgE antibodies to inhalant allergens were predominant after 25 months. PMID- 29336285 TI - Optimal cutoff values of allergen-specific immunoglobulin E to house dust mites and animal dander based on skin-prick test results: Analysis in 16,209 patients with allergic rhinitis. AB - BACKGROUND: The most common tests for allergen sensitization in patients with allergic rhinitis are the skin-prick test (SPT) and an in vitro test to detect serum specific immunoglobulin E (sIgE). However, in vitro allergen test results were interpreted dichotomically as positive or negative at a threshold of 0.35 kU/L of sIgE, regardless of the patient characteristics or antigen types. OBJECTIVE: The purpose of this study was to determine the cutoff value for sIgE in house-dust mites and animal dander, and to analyze differences in cutoff value according to age and gender. METHODS: A total of 16,209 patients with more than one allergic rhinitis symptom who underwent both SPT and serum sIgE testing were retrospectively evaluated between March 2008 and May 2012. There were 9374 male (57.8%) and 6835 female (42.2%) patients. The mean age was 31.8 years (range, 2 89 years). The criterion standard for allergen sensitization was defined as a wheal of >3 mm or an allergen-to-histamine ratio of >=1 in SPT results. The Youden index was used to calculate the cutoff value of sIgE. RESULTS: Cutoff values of sIgE for Dermatophagoides pteronyssinus, Dermatophagoides farinae, cat, and dog were 0.69, 1.16, 0.13, and 0.45 kU/L, respectively. The cutoff value of sIgE changed according to age for D. pteronyssinus and D. farinae but not for cat and dog allergens. When categorizing according to age group, the cutoff values of sIgE for D. pteronyssinus and D. farinae had a tendency to decrease with age. There was no significant difference in cutoff value according to gender. CONCLUSION: The cutoff value for sIgE differed for each antigen and changed with age. Physicians should select the proper cutoff value for sIgE for appropriate criteria according to antigen and patient age rather than using a uniform cutoff value. PMID- 29336286 TI - Oral allergy syndrome. AB - OBJECTIVES: To review oral allergy syndrome (OAS). METHODS: We searched several medical literature data bases with the following key words: "oral allergy syndrome," "OAS," "pollen-food allergy syndrome," "PFAS," "allergy," "diagnosis," "treatment." RESULTS: Oral allergy syndrome (OAS), also called "pollen-food allergy syndrome," is a type of food allergy brought about by flavors, nuts, raw fruit, and vegetables. The most well-known symptoms are mouth and throat itching, which starts rapidly after a food is placed in the mouth, and that, as a rule, continues for just a couple of minutes after the food has been swallowed. The frequency of OAS with pollen allergy has been reported as 5-8%; 1-2% of patients with OAS with pollen allergy show extreme responses, e.g., anaphylaxis. Birch tree pollen, ragweed pollen, and grass pollen hypersensitivity cause the symptoms. The diagnosis of OAS is confirmed by a positive history and positive skin-prick test result triggered by the food's fresh extract. Oral challenge result is normally positive with the raw food and negative with the similar cooked food. CONCLUSION: Patients with grass allergy may have a response to peaches, oranges, celery, tomatoes, and melons. Patients with ragweed allergy may show OAS symptoms with melon, cucumber, banana, and zucchini. Physicians should be aware of OAS and know the appropriate treatment. PMID- 29336287 TI - Endoscopically assisted Crawford tube placement results in shorter general anesthesia times in pediatric patients. AB - BACKGROUND: Crawford tube placement is commonly used to achieve patency of nasolacrimal ducts for epiphora secondary to nasolacrimal duct obstruction. The nasal passages of pediatric patients are narrower than adults, and the result is a relatively higher risk of intranasal complications (e.g., synechiae, bleeding) with Crawford tube placement. There is evidence that general anesthesia may negatively affect the neurocognitive function and behavioral development of children, which prompts efforts to decrease operation times for potential health benefits and also potentially to reduce health care costs. Analysis of research reports supports the use of nasal endoscopy to reduce intranasal complications with Crawford tube placement; however, no publications currently address the effect of nasal endoscopy concurrent with Crawford tube placement on operative times on pediatric patients or the resulting effects on health care costs. OBJECTIVE: To determine the difference in procedure time and cost between Crawford tubes placed traditionally and those placed with endoscopic assistance in pediatric patients. METHODS: A chart review was performed from January 1, 2011 to December 31, 2016 for cases using CPT codes 68815 or 31231. Within this group of patients, the patient in whom nasal endoscopy was performed were placed in the "endoscopic" group and the patients without endoscopy were placed in the "traditional" group. Procedure times were noted, and the t-test was performed to examine for any statistically significant difference in operative times. Estimates of anesthesia cost savings were made. We identified 24 patients in the traditional group and 7 patients in the endoscopic group. RESULTS: The average operative time for the traditional group was 27.3 minutes compared with 14.0 minutes for the endoscopic group (p = 0.02). The cost comparison data revealed no significant difference with the traditional group averaging $9369 per procedure and the endoscopic group averaging $8891 (p = 0.51). CONCLUSION: An endoscopically assisted Crawford tube placement resulted in patients who had less time under general anesthesia compared with the traditional technique at no difference in cost. PMID- 29336288 TI - How often is sinus surgery performed for chronic rhinosinusitis with versus without nasal polyps? AB - BACKGROUND: There currently are no data on the relative frequency of endoscopic sinus surgeries (ESS) performed for chronic rhinosinusitis with nasal polyposis (CRSwNP) versus chronic rhinosinusitis without nasal polyposis (CRSsNP) in the United States. OBJECTIVES: To compare the rate of surgical interventions for CRSwNP and CRSsNP. METHODS: Cases identified by CPT codes were extracted from the 2009-2011 State Ambulatory Surgery Databases for California, Florida, Maryland, and New York. Patient demographics, extent of surgery, mean charges, and operating room (OR) time were compared. RESULTS: A total of 97,228 ESS cases were performed in the four states; 29.3% of surgeries were for patients with CRSwNP, 66.0% of patients with CRSsNP, and 4.8% for other indications. The proportion of ESS for CRSwNP varied across states, with California having the highest percentage (34.6%) and Maryland having the lowest (26.4%) (p < 0.0001). Patients with Medicaid (33.8%) and Medicare (32.2%) had higher rates of surgery for CRSwNP compared with patients with private insurance (29.9%) (p < 0.001). Surgeons who performed a higher volume of sinus surgery compared to lower volume surgeons performed a lower percentage of surgery for CRSwNP (24.4 versus 33.5%; p < 0.001). ESS cases for CRSwNP were more extensive (relative risk of four sinus surgeries of 1.88; p < 0.0001), used image guidance more frequently (relative risk, 1.39; p < 0.0001), and were less likely to include a balloon procedure (relative risk, 0.69; p < 0.0001). Patients with CRSwNP had longer OR times (ESS that involved all four sinuses took 14 minutes longer) (p < 0.0001), but no difference in charges compared with patients with CRSsNP who underwent a similar extent of surgery. CONCLUSION: Almost 30% of ESS were performed for CRSwNP, and these cases were, on average, more extensive, used more OR time, and more often used image guidance than surgeries for CRSsNP. The rate of surgery performed for CRSwNP varied based on geography, payer, and surgical volume, which indicted that patient selection impacted surgical management. PMID- 29336289 TI - Management of odontogenic cysts by endonasal endoscopic techniques: A systematic review and case series. AB - BACKGROUND: Odontogenic cysts and tumors of the maxilla may be amendable to management by endonasal endoscopic techniques, which may reduce the morbidity associated with open procedures and avoid difficult reconstruction. OBJECTIVE: To perform a systematic review that evaluates the feasibility and outcomes of endoscopic techniques in the management of different odontogenic cysts. A case series of our experience with these minimally invasive techniques was assembled for insight into the technical aspects of these procedures. METHODS: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses was used to identify English-language studies that reported the use of endoscopic techniques in the management of odontogenic cysts. Several medical literature data bases were searched for all occurrences in the title or abstract of the terms "odontogenic" and "endoscopic" between January 1, 1950, and October 1, 2016. Publications were evaluated for the technique used, histopathology, complications, recurrences, and the follow-up period. A case series of patients who presented to a tertiary rhinology clinic and who underwent treatment of odontogenic cysts by an endoscopic technique was included. RESULTS: A systematic review identified 16 case reports or series that described the use of endoscopic techniques for the treatment of odontogenic cysts, including 45 total patients. Histopathologies encountered were radicular (n = 16) and dentigerous cysts (n = 10), and keratocystic odontogenic tumor (n = 12). There were no reported recurrences or major complications for a mean follow-up of 29 months. A case series of patients in our institution identified seven patients without recurrence for a mean follow-up of 10 months. CONCLUSION: Endonasal endoscopic treatment of various odontogenic cysts are described in the literature and are associated with effective treatment of these lesions for an average follow-up period of >2 years. These techniques have the potential to reduce morbidity associated with the resection of these lesions, although comparative studies would better define specific indications. PMID- 29336290 TI - Comparison between endoscopic and external dacryocystorhinostomy by using the Lacrimal Symptom Questionnaire: A pilot study. AB - BACKGROUND: Epiphora has a significant impact on the patient's quality of life and is commonly caused by nasolacrimal duct obstruction. Dacryocystorhinostomy (DCR) has traditionally been performed via an external approach, which involves a skin incision. With the advent of endoscopes, the endonasal approach to DCR has gained significant popularity. METHOD: To prospectively compare the quality of life of adult patients who underwent either an endonasal or an external DCR for acquired nasolacrimal duct obstruction, the Lacrimal Symptom Questionnaire (Lac Q) was administered before and after surgery. The treatment group assignment was nonrandom and performed based on patient preference. The Lac-Q is a validated questionnaire that assesses the subjective perception of one's well-being from an eye-specific symptom and social impact standpoint. Total scores range from 0 (no concerns) to 33 (maximal degree of ocular symptoms and social impact). RESULTS: Sixty patients (22 in the endonasal group, 38 in the external group) were recruited between January 1, 2014, and January 1, 2016. Postoperative assessment was performed at 3 and 6 months. Patients who underwent external DCR reported a median 7.0-point improvement (interquartile range [IQR], 3.0-11.0) in total Lac-Q scores. A 12.0-point improvement (IQR, 10.0-18.5) was seen in the endonasal group (p = 0.005). The median change in the social impact score was 3.0 and 4.0 in the external group and the endoscopic group, respectively (p = 0.029). Changes in the median lacrimal symptom score were 4.0 in the external group and 8.0 in the endoscopic group (p = 0.014). The anatomic patency rate was lower in the external group (60.0%) when compared with the endonasal group (90.4%). Patients in the external DCR group were significantly older (median age, 51 versus 41 years). CONCLUSION: Our study indicated that both endonasal and external DCR can lead to improvement in quality of life by using a validated questionnaire. Although there are differences in age and anatomic success rates between the two groups, subgroup analyses indicated that the differences in the Lac-Q scores persisted when age and anatomic patency were removed as potential confounding factors. Further larger, randomized studies would be helpful. PMID- 29336291 TI - Extent of surgery in endoscopic transsphenoidal skull base approaches and the effects on sinonasal morbidity. AB - BACKGROUND: Endoscopic transsphenoidal skull base surgery (ETSS) is now considered the criterion standard approach for resection of pituitary adenomas and other midline anterior skull base lesions. Normal sinonasal structures are resected during ETSS, which raises concerns for nasal morbidity and patient-based outcome. OBJECTIVE: To perform a surgical outcome assessment by examining whether the extent of ETSS approaches affected patient-specific sinonasal quality of life as measured by the 22-item Sino-Nasal Outcome Test (SNOT-22). METHODS: A single center prospective cohort study of patients operated on by the same skull base team between 2012 and 2016. Patients with completed pre- and postoperative SNOT 22 were included. The primary outcome was SNOT-22 scores at preoperative, 0-1 month, 2-4 months, >5 months follow-up. Age, sex, tumor pathology, surgical procedure, and intraoperative cerebral spinal fluid leak repair were also obtained. RESULTS: Of the 249 ETSS performed, 148 patients (59%) had at least one completed SNOT-22; 45 (18%) met the inclusion criteria. Sinonasal quality of life based on SNOT-22 at the 0-1-month follow-up was significantly worse than the presurgical levels (p < 0.05). However, there was a return of SNOT-22 scores to preoperative levels at 2-4 months (p > 0.05), which was sustained at >5 months (p > 0.05). Factors such as the extent of ETSS, a previous nasal surgery, repair of an intraoperative cerebral spinal fluid leak, and the tumor pathology did not affect SNOT-22 scores at any follow-up intervals (p > 0.05). CONCLUSION: Sinonasal quality of life worsened after ETSS at 0-1 month follow-up but returned to preoperative levels at 2-4 months and remained at postoperative levels >5 months. Analysis of these data will allow us to educate our patients that the anticipated nasal morbidity after ETSS is usually only transient and should be expected to recover to preoperative levels. PMID- 29336292 TI - Use of intraoperative negative margins reduces inverted papilloma recurrence. AB - BACKGROUND: Recurrence of inverted papilloma (IP) is a problem in 12-17% of tumors. Controversy exists regarding benefits of intraoperative frozen section histopathology (IFSH) for IP resection; however, to our knowledge, no study has specifically investigated this. IFSH for IP resection is the standard of care in our practice. We, therefore, reviewed our outcomes of using IFSH for IP resection. A secondary goal was to assess the reliability of IFSH. METHODS: Patients with IP who underwent surgical resection (2010-2016) with minimum 9 month follow-up were included. RESULTS: Twenty-two adults with IP met inclusion criteria. All underwent surgery via endoscopic techniques, supplemented by external ports in five patients. At the time of presentation, 36% IPs were recurrent tumors; 68% were graded as Krouse stage 3. Resection was conducted until "clear" (negative) mucosal margins were achieved on IFSH. In 6 (27%), a "positive" IFSH result dictated additional resection to clear margins. Final negative margins were achieved in all the patients. Both positive and negative predictive values for IFSH were 100% (concordance with final pathology results). Surveillance was performed every 1-6 months with nasal endoscopy by using imaging when necessary. No recurrences were noted (0%) at mean follow-up of 40 months (range, 10-73 months). CONCLUSIONS: Positive IFSH results led to increased resection in 27% of the patients, with a 0% recurrence rate in this cohort. The reliability of IFSH for IP is very high. No recurrence of IP was noted in any patient at a mean follow-up of 3.3 years. IFSH may help reduce recurrence rates of IP, but additional studies with longer follow-up are warranted. PMID- 29336293 TI - Using the nasoseptal flap for reconstruction after endoscopic debridement of radionecrosis in nasopharyngeal carcinoma. AB - BACKGROUND: Radionecrosis is a complication of nasopharyngeal carcinoma (NPC) that is difficult to treat. Endoscopic debridement is the first-line treatment for radionecrosis. After debridement, however, either bone or the internal carotid artery is exposed and requires mucosal coverage. OBJECTIVES: This study sought to demonstrate the effectiveness of a nasoseptal flap (NSF) after endoscopic debridement of radionecrosis in the reconstruction of nasopharyngeal or skull base defects. METHODS: Nine patients with NPC who underwent navigation guided endoscopic debridement, followed by NSF reconstruction between April 2013 and July 2016, were included. The patients' clinical features and outcomes were evaluated. RESULTS: All nine patients had headaches, and eight had a foul odor associated with their radionecrosis. One patient underwent three radiotherapy treatments, four had two treatments, and the remaining four had just one treatment. The foul odor disappeared after treatment in all the patients who had been affected. The headache was significantly reduced after treatment in all patients. The NSF detached in two patients. In one patient, NSF failed, and the patient experienced postoperative rupture of the internal carotid artery. In the seven other patients, the NSF successfully covered the resultant defects, despite one intraoperative internal carotid artery rupture. Only two patients required further debridement, whereas the others experienced complete healing after just one surgical procedure. The nasopharyngeal surface was healthy-appearing in eight patients (median follow-up, median 11 months). CONCLUSION: Reconstruction by using NSF after endoscopic debridement for radionecrosis of NPC allowed for faster healing and reduced the need for further debridement. PMID- 29336294 TI - Esthetic nasolabial angle according to the degree of upper lip protrusion in an Asian population. AB - BACKGROUND: The positioning of the nasal tip is as esthetically important as the tip projection when rhinoplasty is being considered. It is not uncommon for Asians to have a protruding upper lip and teeth that affect the nasolabial angle (NLA). This study aimed to find the preferred NLA according to the degree of upper lip protrusion in an Asian population. METHODS: A left-side lateral photograph of each participant was used for simulation of six different tip angles by using a photoshop program. First, the angles of the upper lip protrusion were changed into 10, 20, and 30 degrees by a perpendicular line to the Frankfort line in each image; then, the NLAs were changed into six different angles (from 75 to 110 degrees ) for each of the three angles of upper lip protrusion for each model. Newly transformed images of nasal tips, six for the male model and six for the female model, were made by using presentation software slides and were placed in a random order. Then, 120 Korean raters were asked to choose the most preferred image from among the slides. RESULTS: In 10 degrees of upper lip protrusion, the preferred mean +/- standard deviation (SD) NLAs for the male and female models were 88.7 +/- 6.4 degrees and 92.9 +/- 6.9 degrees , respectively. In 20 degrees of upper lip protrusion, the preferred mean +/- SD NLAs for the male and female models were 80.9 +/- 6.9 degrees and 83.9 +/- 5.7 degrees , respectively. In 30 degrees of upper lip protrusion, the preferred mean +/- SD NLAs for the male and female models were 78.4 +/- 5.5 degrees and 79.0 +/- 5.4 degrees , respectively. CONCLUSION: In an Asian population, the preferred NLA was changed to a more acute angle according to the degree of upper lip protrusion. PMID- 29336295 TI - Transnasal endoscopic resection of pediatric orbital cyst: "How I do it". AB - BACKGROUND: An orbital cystic lesion is a common orbital disease and has classically been approached via external incision. The introduction of endoscopic surgery has revolutionized the management of sinus and skull base disorders. Similarly, endoscopic techniques have been increasingly used to access intraorbital lesions with excellent outcomes, especially in pediatric patients. OBJECTIVE: We described, in detail, the surgical technique of the endoscopic approach to treat a pediatric orbital cyst. RESULTS: The cyst was completely resected, and the patient quickly recovered without any complication. CONCLUSION: The transnasal endoscopic surgical approach can be safe and effective for pediatric patients with orbital lesions. Use of this approach is based on the surgeon's experience and progressive instrumentation. PMID- 29336296 TI - Superior turbinate eosinophilia correlates with olfactory deficit in chronic rhinosinusitis patients. PMID- 29336298 TI - [Diagnosis of vaginal discharge]. AB - Changes in vaginal discharge are often caused by imbalance in the vaginal microflora, and laboratory testing is usually of little use, as most microbes detected are commensals. In-office diagnosis in general practice using wet mount microscopy and Amsel criteria is helpful and often sufficient to ensure correct diagnosis and treatment. Laboratory testing of vaginal discharge should only be performed, if sexually transmitted disease is suspected, if there is treatment failure or inconclusive wet mount prior to gynaecological surgery, and in pregnant women with recurrent miscarriage or preterm birth. PMID- 29336297 TI - Add-on perampanel and aggressive behaviour in severe drug-resistant focal epilepsies. AB - This study aimed to investigate the incidence of aggressiveness in patients with severe drug-refractory focal epilepsy (DRE) who started perampanel (PER) as add on treatment, and to identify possible predisposing factors. Data on 49 consecutive patients with severe DRE who initiated PER were retrospectively collected. Twelve of the 49 patients experienced aggressiveness as adverse event related to PER treatment, one third of them on low (2-4 mg/day) PER dosages. PER was discontinued in 10/12 patients because of aggressive behaviors. Aggressiveness could appear after several months or even more than one year of PER treatment. One third of patients with PER-related aggressiveness had intellectual disabilities and 5/12 patients took levetiracetam as a concomitant antiepileptic drug. Our study suggests that the occurrence of aggressive behaviors in patients with severe DRE is not uncommon during PER treatment and that it may occur after months or even years of treatment with a stable dosage, requiring PER discontinuation in the great majority of patients. PMID- 29336299 TI - [Duplication cyst as cause of ileus in a 16-year-old girl]. AB - A 16-year-old girl was admitted to hospital with lower abdominal pain. An ultrasound examination suggested an ovarian cyst. A laparoscopic procedure found that a duplication cyst in the patient's ileum had caused mechanical ileus. The cyst was surgically resected through the creation of an end-to-end anastomosis, and pathological examination confirmed it to be a duplication cyst. Duplication cysts are a rare congenital disorder, especially past infancy. They are characterized by an epithelium of gastrointestinal origin and a lining of smooth muscle in their walls. The treatment is surgical resection when possible. PMID- 29336300 TI - [Successful treatment of acute promyelocytic leukaemia without chemotherapy and blood transfusion]. AB - Untreated acute promyelocytic leukaemia (APL) is a rapidly lethal blood cancer. Conventional treatment consists of all-trans retinoic acid and chemotherapy. Standard chemo-therapy-containing treatments necessitate the use of blood products. This is a case report of typical APL in a 32-year-old female patient, who due to religious conviction refused supportive therapy with blood products. A treatment regimen consisting of all-trans retinoic acid and arsenic trioxide was successful without the use of blood transfusions. PMID- 29336301 TI - [Acute promyelocytic leukaemia]. AB - Acute promyelocytic leukaemia has changed from being a highly fatal to a highly curable disease. Over time, key discoveries have identified the genetic and molecular abnormalities, which cause the disease. First choice of treatment has now changed from all-trans retinoic acid (ATRA) and chemotherapy to a chemo-free combination of arsenic trixoide and ATRA. This new regimen has shown equal responses and overall cure rates compared with the previous standard of care containing conventional chemotherapy, but with much lower toxicity. This will pave the way for better and easier treatment for elderly and frail patients. PMID- 29336302 TI - [Cyclizine is sold in Denmark as an over-the-counter drug and has serious side effects when overdosed]. AB - Cyclizine is sold in Denmark as an over-the-counter drug and affects not only histaminergic but also muscarinergic, serotonergic and alpha-adrenergic receptors, with side effects such as respiratory depression and cardiac arrhythmias, leading to fatalities. Due to the numerous side effects, it raises questions concerning the status of cyclizine as an over-the-counter drug. Data of healthcare contacts because of cyclizine intoxication in the 2014-2016 period should be analyzed to further illuminate the health risk of cyclizine poisoning. PMID- 29336304 TI - Why do women with melanoma do better than men? AB - Harnessing female sex hormones may improve how all patients with melanoma respond to treatment. PMID- 29336303 TI - Keratinocytes mediate innocuous and noxious touch via ATP-P2X4 signaling. AB - The first point of our body's contact with tactile stimuli (innocuous and noxious) is the epidermis, the outermost layer of skin that is largely composed of keratinocytes. Here, we sought to define the role that keratinocytes play in touch sensation in vivo and ex vivo. We show that optogenetic inhibition of keratinocytes decreases behavioral and cellular mechanosensitivity. These processes are inherently mediated by ATP signaling, as demonstrated by complementary cutaneous ATP release and degradation experiments. Specific deletion of P2X4 receptors in sensory neurons markedly decreases behavioral and primary afferent mechanical sensitivity, thus positioning keratinocyte-released ATP to sensory neuron P2X4 signaling as a critical component of baseline mammalian tactile sensation. These experiments lay a vital foundation for subsequent studies into the dysfunctional signaling that occurs in cutaneous pain and itch disorders, and ultimately, the development of novel topical therapeutics for these conditions. PMID- 29336305 TI - Inferring joint sequence-structural determinants of protein functional specificity. AB - Residues responsible for allostery, cooperativity, and other subtle but functionally important interactions remain difficult to detect. To aid such detection, we employ statistical inference based on the assumption that residues distinguishing a protein subgroup from evolutionarily divergent subgroups often constitute an interacting functional network. We identify such networks with the aid of two measures of statistical significance. One measure aids identification of divergent subgroups based on distinguishing residue patterns. For each subgroup, a second measure identifies structural interactions involving pattern residues. Such interactions are derived either from atomic coordinates or from Direct Coupling Analysis scores, used as surrogates for structural distances. Applying this approach to N-acetyltransferases, P-loop GTPases, RNA helicases, synaptojanin-superfamily phosphatases and nucleases, and thymine/uracil DNA glycosylases yielded results congruent with biochemical understanding of these proteins, and also revealed striking sequence-structural features overlooked by other methods. These and similar analyses can aid the design of drugs targeting allosteric sites. PMID- 29336308 TI - Clinical significance of concordance or discordance between fractional flow reserve and coronary flow reserve for coronary physiological indices, microvascular resistance, and prognosis after elective percutaneous coronary intervention. AB - AIMS: We aimed to investigate the impact of concordance or discordance of fractional flow reserve (FFR) and coronary flow reserve (CFR) on coronary flow profiles and microvascular resistance after percutaneous coronary intervention (PCI), and the prognostic impact of the periprocedural physiological indices. METHODS AND RESULTS: A total of 249 de novo physiologically significant coronary lesions from 231 patients who underwent FFR, CFR, and index of microcirculatory resistance (IMR) examinations before and after PCI were included. Baseline characteristics and physiological indices were compared between the concordant (FFR <=0.80 and CFR <2.0, n=114) and discordant (FFR <=0.80 and CFR >=2.0, n=135) groups. Follow-up data were collected to determine predictors of cardiac events. Shortening of the mean transit time, CFR improvement, and decrease in the hyperaemic IMR were all significantly greater in the concordant territories. Cox proportional hazards analysis showed that a lower pre-PCI CFR was an independent predictor of adverse events at a median follow-up of 26.5 months, whereas neither the pre- nor post-PCI FFR was predictive of events. Event-free survival was significantly worse in patients with a lower pre-PCI CFR. CONCLUSIONS: FFR/CFR concordantly abnormal territories provide a favourable benefit as assessed by coronary physiological indices after elective PCI. The pre-PCI CFR may predict adverse cardiac events. PMID- 29336309 TI - Dedicated bifurcated balloon for coronary bifurcation lesions: a preclinical proof of concept. PMID- 29336307 TI - Activation of G protein-coupled estrogen receptor signaling inhibits melanoma and improves response to immune checkpoint blockade. AB - Female sex and history of prior pregnancies are associated with favorable melanoma outcomes. Here, we show that much of the melanoma protective effect likely results from estrogen signaling through the G protein-coupled estrogen receptor (GPER) on melanocytes. Selective GPER activation in primary melanocytes and melanoma cells induced long-term changes that maintained a more differentiated cell state as defined by increased expression of well-established melanocyte differentiation antigens, increased pigment production, decreased proliferative capacity, and decreased expression of the oncodriver and stem cell marker c-Myc. GPER signaling also rendered melanoma cells more vulnerable to immunotherapy. Systemically delivered GPER agonist was well tolerated, and cooperated with immune checkpoint blockade in melanoma-bearing mice to dramatically extend survival, with up to half of mice clearing their tumor. Complete responses were associated with immune memory that protected against tumor rechallenge. GPER may be a useful, pharmacologically accessible target for melanoma. PMID- 29336306 TI - MERS-CoV spillover at the camel-human interface. AB - Middle East respiratory syndrome coronavirus (MERS-CoV) is a zoonotic virus from camels causing significant mortality and morbidity in humans in the Arabian Peninsula. The epidemiology of the virus remains poorly understood, and while case-based and seroepidemiological studies have been employed extensively throughout the epidemic, viral sequence data have not been utilised to their full potential. Here, we use existing MERS-CoV sequence data to explore its phylodynamics in two of its known major hosts, humans and camels. We employ structured coalescent models to show that long-term MERS-CoV evolution occurs exclusively in camels, whereas humans act as a transient, and ultimately terminal host. By analysing the distribution of human outbreak cluster sizes and zoonotic introduction times, we show that human outbreaks in the Arabian peninsula are driven by seasonally varying zoonotic transfer of viruses from camels. Without heretofore unseen evolution of host tropism, MERS-CoV is unlikely to become endemic in humans. PMID- 29336310 TI - Two-year outcomes of high bleeding risk patients with acute coronary syndrome after Biolimus A9 polymer-free drug-coated stents: a LEADERS FREE substudy. PMID- 29336311 TI - Comparison of the effects of P2Y12 receptor antagonists on platelet function and clinical outcomes in patients undergoing Primary PCI: A substudy of the HEAT-PPCI trial. AB - AIMS: The HEAT-PPCI trial compared bivalirudin and unfractionated heparin in patients undergoing primary percutaneous coronary intervention (PPCI). The aim of this study was to report pre-specified, secondary analyses comparing the effects of P2Y12 inhibiting agents on platelet reactivity and clinical events. METHODS AND RESULTS: All patients received preprocedural oral antiplatelet therapy. During the early stages of the trial, the P2Y12 inhibitor of choice was prasugrel with some use of clopidogrel. Later, routine therapy switched to ticagrelor. For cases performed during working hours, multiple electrode aggregometry (MEA) was used to assess ADP-induced platelet aggregation at the end of the index procedure. The effect of P2Y12 inhibitors on the primary efficacy (major adverse cardiac events [MACE]) and safety (major bleeding) outcomes was assessed in all patients. Multiple logistic regression was used to adjust for differences in baseline characteristics. With MEA data from 469 patients, prasugrel therapy resulted in significantly greater suppression of ADP-induced platelet aggregation at 40 U (23, 78) (median; interquartile range [IQR]) when compared against ticagrelor 75 U (41, 100.75); p<0.001 or clopidogrel 79 U (56, 96); p<0.001. In the entire study population (N=1,803), prasugrel therapy was associated with significantly fewer MACE (26/497; 5.2%) in comparison to ticagrelor (83/1,123; 7.4%) or clopidogrel (18/183; 9.8%); odds ratio (OR) 0.64, confidence interval (CI): 0.41-0.99, p=0.045. For major bleeding, there were no significant differences among the three groups - clopidogrel (3/183; 1.6%), prasugrel (13/497; 2.6%) and ticagrelor (43/1,123; 3.8%); OR 0.73, CI: 0.39-1.35, p=0.31. Patients treated with clopidogrel had more high-risk features and clopidogrel use was more common as an alternative to prasugrel. After adjustment, there were no significant differences in the rates of MACE (OR 0.70, CI: 0.41-1.21, p=0.20) or major bleeding (OR 0.80, CI: 0.41-1.60, p=0.53). CONCLUSIONS: In HEAT-PPCI, patients who received prasugrel (rather than clopidogrel or ticagrelor) had significantly greater suppression of ADP-induced platelet aggregation at the end of the procedure. After adjustment for differences in baseline characteristics, there were no significant differences in ischaemic or bleeding outcomes among the antiplatelet therapies. PMID- 29336312 TI - Apocrine mixed tumour on the abdomen: an atypical location. PMID- 29336313 TI - Reduced IgG anti-desmocollin autoantibody titre and concomitant improvement in a patient with pemphigus vegetans. PMID- 29336314 TI - Two cases of annular acute generalized exanthematous pustulosis induced by terbinafine. PMID- 29336316 TI - Mycosis fungoides in patients with psoriasis: an ongoing issue. PMID- 29336315 TI - A high neutrophil to lymphocyte ratio prior to BRAF inhibitor treatment is a predictor of poor progression-free survival in patients with metastatic melanoma. AB - Some studies have shown that a high neutrophil/lymphocyte ratio (NLR) >=4 before initiating ipilimumab treatment is an independent prognostic indicator of poor survival in patients with metastatic melanoma (MM). To determine whether the NLR before starting BRAF inhibitor (BRAFi) treatment in patients with (MM) is associated with progression-free survival (PFS). This retrospective study included 49 patients consecutively receiving BRAFi for MM between July 2012 and December 2014. Cox proportional hazards regression was used to analyse the relationship between NLR and other factors, such as lactate dehydrogenase (LDH), performance status, BRAFi as first- or second-line therapy, and corticosteroid intake with PFS. The NLR before starting BRAFi was significantly associated with PFS based on univariate analysis and multivariate analysis adjusted for potential confounding factors, such as LDH activity, ulceration, performance status, first line therapy, and corticosteroid intake. A high NLR (continuous variable) was associated with short PFS (HR: 1.35; 95% CI: 1.07-1.70; p = 0.01), and NLR >=4 was associated with shorter PFS (HR: 3.24; 95% CI: 1.30-8.12; p = 0.01). Corticosteroid intake was not associated with short PFS based on multivariate analysis. An NLR >4, before starting BRAFi treatment, is an independent prognostic indicator of poor progression-free survival. PMID- 29336317 TI - Association between Helicobacter pylori infection and vulvar lichen sclerosus: a clinical comparative study. PMID- 29336318 TI - Nevus anelasticus in a school-aged girl: ultrastructural observation and Er:YAG laser treatment. PMID- 29336319 TI - Acute renal injury induced by oral valacyclovir. PMID- 29336320 TI - Two childhood cases of pigmented dermatofibrosarcoma protuberans with atrophic change. PMID- 29336321 TI - Epstein Barr virus and invasive mammary carcinomas: EBNA, EBERs and molecular profile in a population of West Algeria. AB - Breast cancer is the common malignancy that affects women worldwide, but conventional risk factors account for only a small proportion of these cases. A possible viral etiology for breast cancer has been proposed and Epstein-Barr virus (EBV) is a widely studied candidate virus. The objective of this study is to determine the association of EBV infection with infiltrating ductal carcinomas (IDC). This descriptive study was carried out in the laboratory of developmental biology and differentiation, from 2012 to 2014. Of 39 cases, we determined the clinicopathological characteristics of the population. Of the 23 cases of IDC, we implemented the techniques Elisa, immunohistochemistry and in situ hybridization. To determine the serological profile, overexpression of onco-proteins EBNA-1, HER2, the mitotic index Ki67 and detection of the presence of the viral genome. The mean age is 57.40+/-4, SBR II predominates with 70%, pN+ (27%), RE+ (58%), RP+ (52%), HER2 (81%), Luminal A (34%), Luminal B (14%), HER2 (24%), and triple negative (28%). The serological profile of IgG VCA + in IgG EBNA-1 (87%), EBNA-1 P79 (82%) with a positive relationship between the IgG EBNA-1 and EBNA-1 P79 serology profile (p=0.001), HER2 (p=0.003) and with the molecular profile (p=0.051), EBNA-1 overexpression in (13%). The viral genome (EBER) is found in the tumors 43% representing an inverse relationship with the overexpression of Ki67 and a positive relationship with the overexpression of HER2. In our study we found an association with the presence of the EBV virus and the IDC studied. PMID- 29336322 TI - Treatment of nail psoriasis with topical application of clobetasol propionate 0.05% solution: a pilot study. PMID- 29336323 TI - Nivolumab for recurrent cutaneous squamous cell carcinoma: three cases. AB - Programmed cell death ligand 1 (PD-L1) is frequently expressed in cutaneous squamous cell cancer (CSCC) and preliminary data from an ongoing clinical trial suggest that programmed death receptor 1 (PD-1) checkpoint inhibitors may be useful to treat patients with metastatic non-melanoma skin cancer. To report a series of three patients with advanced CSCC treated with nivolumab, showing that commercially available PD-1 checkpoint inhibitors may be useful in non-melanoma skin cancer patients without access to a clinical trial. All patients had previous chemotherapy. All cancers were PD-1 ligand (PD-L1)-positive based on immunohistochemistry. Patients consented to off-label therapy with nivolumab, which is commercially available in Switzerland. Two patients had a partial tumour response, and have been receiving therapy for more than 12 months. One patient had stable disease after three months, and therapy is also ongoing. So far, no severe adverse effects have occurred. Our cases confirm previous reports demonstrating a clinical effect and tolerability of PD-1 checkpoint inhibitors for heavily pre-treated patients with metastatic CSCC. Commercially available PD 1 checkpoint inhibitors may be useful in these patients who should be considered for PD-1 checkpoint inhibitor therapy, preferentially within clinical trials. PMID- 29336324 TI - Diagnostic value of autoantibody titres in patients with bullous pemphigoid. AB - BACKGROUND: Bullous pemphigoid (BP) is the most common autoimmune blistering disease of the skin requiring skin and serum tests for a precise diagnosis. OBJECTIVES: We analysed the sensitivity and specificity of BP-relevant parameters and the value of autoantibody titres during follow-up of BP patients. MATERIALS & METHODS: In a retrospective single-centre study, we included 200 consecutive patients with BP and 400 non-BP patients, and evaluated the test results of patients' serum and skin. In addition, we followed patients' autoantibody titres and clinical characteristics. RESULTS: BP180-ELISA revealed the highest sensitivity (85.0%; specificity: 93.9%), while BP230-ELISA demonstrated the lowest sensitivity (55.5%; specificity: 92.9%). Direct and indirect immunofluorescence showed comparable results for sensitivity (77.2%/72.7%) and specificity (94.9%/93.7%). The sensitivity for skin histology was 76.3% (specificity: 81.3%). Longitudinal analysis showed significant changes in autoantibody titres. CONCLUSIONS: BP diagnostics should include serum tests for BP autoantibodies and skin immunofluorescence. Skin histology is supportive for diagnosis. Autoantibody titres are markers for disease activity. PMID- 29336325 TI - [Surgical and academic education in Urology.] PMID- 29336326 TI - [Current status of Urological Education in Spain.] AB - INTRODUCTION: Urology is a medicalsurgical specialty that deals with the study, diagnosis and treatment of medical and surgical conditions of the urinary tract and retroperitoneum in both sexes and of the male genital tract without age limit. The traditional method of training is based on the imitation of the skills and behaviors of the tutors, creating variability in the training between different centers and giving a passive role to resident internal physicians (MIR). LEGISLATIVE FRAMEWORK: The 2006 BOE establishes the specific formative content in its theoretical, practical and scientific facets. At the beginning of the MIR training period, the first year focuses on general surgical training and the remaining four on specific urological training. The current legislative framework that regulates our specialty is one of the oldest, with no prospect of renewal, since this would be carried out with the development of the trunk project, currently paralyzed after the judgment of the Supreme Court. Therefore, we are in a situation of uncertainty with a legal framework in renewal plans. CURRENT STATE OF TRAINING: a National survey shows the degree of surgical participation of the MIR is low, as well as training on models and course attendance. In addition, the self-confidence they feel for interventions that could be considered of low complexity is high, for activities such as consultation is moderate and for interventions of moderate-high complexity is low. CONCLUSION: The current training program is upgradeable. New studies and efforts should aim to standardize the acquisition of surgical and non-surgical skills, guarantee access to surgical training courses, establish a minimum of required interventions per year and at the end of residency, foster academic training, participation in research of residents and achieve an objective assessment of the specialty. PMID- 29336327 TI - Current status of urological training in Europe. AB - Modern urological training has changed drastically in the past years, due to the global surgical training trends, advances in technology, subspecialization of the field and, working hour regulations for doctors. The lack of a standardized curriculum across Europe, puts in evidence the great difference in the requirements in every country, from the start of the residency, to obtaining the accreditation. We sought to identify problems related to medical, scientific and surgical activity during urological training, and summarize data obtained from surveys realized during the European Urology Residents Education Programme (EUREP) in 2013, and from countries such as Germany, Italy and Spain. Data from surveys reveals an evident lack of surgical confidence across all participants for major procedures, a general non-compliance with the working hour regulations, and a worrisome risk for burnout and negative consequences in resident's personal lives. Possible solutions are discussed, involving an early preference for a particular practice, and a standardized simulation-based training. The European Association of Urology (EAU) and the European School of Urology (ESU) offer a wide range of working groups, educational and scientific activities for improving the acquisition of competencies (surgical and scientific) of residents and urologists at any point of their career. We describe a brief description of the most important EAU and ESU opportunities. PMID- 29336328 TI - Needs, realities and expectations for urology training: Questionaire-based study. AB - OBJECTIVE: Urology residency training is a difficult and complex education period for urology residents. This education period differs in countries and mainly for 5 years. In this study, we aimed to assess the expectations and the realities for Turkish urology residents and to evaluate the adequacy of their education in the field of urology. METHODS: In this study, 113 Turkish urology residents have been included and residents were asked 24 questions related with their surgical skills, thoughts towards their educations, their future plans and including demographic information. RESULTS: The years of residency were divided as; 1st year-12 (10.6%), 2nd year-17 (15%), 3rd year-22 (19.4%), 4th year-24 (21.3%) and 5th year-38 (33.7%). Mainly they suffered from the lack of practical education and the lack of encouragement to scientific and academic works, studies. CONCLUSION: Urological education must be standardized and must cover the educational needs of urology residents. PMID- 29336329 TI - [Current status of urological training in Latin America.] AB - OBJECTIVE: Achieving residents' medical training of quality is a constant concern in the Confederacion Americana de Urologia (CAU), the third Urological Society worldwide. We aim to analyze the diversity of state training programs, with the intention to identify opportunities for global improvement within them and also to analyse the professional reality in different countries. METHODS: Data from 2nd and 3rd Foro Educativo CAU regarding postgraduate training and labour implications are reviewed. This information is complemented by the opinion of representatives involved with the academic training in Confederacion Americana de Urologia, who have analyzed the reality and current status of the urological training through a 10-question survey that describes different aspects of residency program in the countries confederated in CAU. RESULTS: A total of 3,000 graduate doctors train as residents in Urology at the CAU environment. Each year 670 residents begin their training program in Latin America, Spain and Portugal, a territory that serves nearly 650 million people, with an active professional force of around 16.800 professionals. Detailed data on training, employment and supporting reality in the countries that comprise the CAU are presented. We also discuss the proportion of residents who carry out research and doctorate during the residency program. Finally, we examine the proportion of professionals who receive specific training at the end of their residence, the relative importance of this training and what are the most popular environments to carry it out. CONCLUSIONS: Current postgraduate training in CAU environment is heterogeneous in their programs, as well as in the modes of accreditation and recertification. Academic activities do not seem to be properly valued. However, specific training offers better expectations of professional development. PMID- 29336330 TI - [The current urological training program in Spain. Urology National Specialty Commission.] AB - OBJECTIVES: 44/2003 Law involved the creation of the National Council of Specialties in Health Sciences and the National Commissions of the Specialties in Health Sciences. METHODS: Analysis of the main laws implicated in Specialized Training and the role of the National Specialty Commission. DISCUSSION: 44/2003 Law regulates the training of health professionals and establishes the procedure for the training programs creation by the National Specialty Commission and its later approval and publication in the BOE. Access to specialized training will be carried out with the annual and national MIR exam. The Health Ministry establishes the criteria for educational centers accreditation, and the National Specialty Commission issues a favorable or unfavorable report as advisor about new accreditation requests. 183/2008 RD develops the tutor figure, the formative evaluation through the Resident's Book and how will be like the external rotations. CONCLUSIONS: to understand the Urology's specialty training system we must know the laws that regulate it, being the most important the 44/2003 Law. The National Specialty Commission is an advisory party of the Ministry, whose main function is to elaborate the Urology training program and to establish the evaluation criteria of the specialists in formation. PMID- 29336331 TI - [Job status after the resident training period in Spain. Analysis of a national survey.] AB - OBJECTIVES: Since the establishment of specialization of medicine through the residency system, Spanish health care has sought to maintain a balance between established needs and trained professionals, with the aim of avoiding the deficit or excess of health specialists with its consequences. The objective of the present review is to know the working conditions of urologist specialists at the end of the residency training period. METHODS: The results of a survey for urologist who completed their residency contract from 2012 to 2016 are presented, assessing working status, academic and working data during the first months after the completion of specialized training. RESULTS: A total of 42 surveys were collected. All respondents had a working contract within 6 months of completing their training. 71% had a temporary contract, most with duration of less than one year. There are more contract numbers in the public health system, although they increase progressively in the private sector. More than half of the respondents were satisfied with their work situation. CONCLUSIONS: The work insertion of the recently specialized urologists is high, reaching 100% within 6 months of finishing their specialization. Labor quality issues are not so positive, observing great working instability associated to a high proportion of temporary contracts lower than 6 months. PMID- 29336332 TI - [Fatigue syndrome: Stress, Burnout and depression in Urology.] AB - OBJECTIVE: To determine the factors related to stress, Burnout and depression in urology, as well as consequences in residents and urologists, in addition to the possible applicable strategies to diminish and treat them. ACQUISITION OF THE EVIDENCE: Depression, stress and Burnout syndrome has become a problem in urology specialty. These topics have gained interest in international congresses and urological associations. Efforts are being made to find related factors as well as possible strategies and applicable support programs. SYNTHESIS OF EVIDENCE: Burnout frequency is higher among health professionals than general population, 40-76% in students and residents, its incidence has skyrocketed in recent years, in addition Urology is one of the specialties with highest incidence and severity. Its increase has been related to work overload, documentation, administrative/bureaucratic workload, hostile work environment; its consequences include poor work performance, medical errors, depression, substance abuse, disruption in family and couple relationships and suicidal ideation. Strategies for prevention including resilience training, lifestyle balance, teamwork, and support programs. CONCLUSION: Stress, burnout and depression are problems in urology, early detection, promoting individual techniques in resilience, lifestyle and teamwork are fundamental now and for the future of the specialty. Developing and implementing support programs should be seriously considered by health systems and urological associations. PMID- 29336333 TI - Simulation and training in Urology - in collaboration with ESU/ESUT. AB - Being a Surgeon today means taking on your shoulders countless responsibilities. It is definitely a high-stakes job but, even though the professionals do not go through the intense, focused and demanding training schedule as followed by the other equally risky fields, it doesn't yet require any practical training certification. Simulation was introduced in the aviation field in the early '30s with the "Link Trainer", designed to reproduce the most difficult flying case scenario: landing on an air-carrier. After almost a century, flight simulation is still becoming more sophisticated, while surgical training is slowly starting to fill the gap. The aim of a simulator is to produce an "imitation of the operation of a real-world process or system over time". This short but effective definition explains why simulators are utilised across different fields. There is no doubt that surgeons are continuously undergoing a condition of stress, even in nonthreatening situations, while performing a procedure. This condition adds a relevant variable to surgery, meaning that mastering technical skills is not always equal to "safe surgery". This is why "non-technical skills" (NTS) training should be a part of any simulation based training opportunity and will probably start to be always more part of the Handson Training programs. PMID- 29336334 TI - [Training in basic and advanced laparoscopy: Evaluation of a 30-year experience in a training program in Spain.] AB - The lack of globally established standards for learning urological laparoscopy has not prevented laparoscopic techniques from evolution and continuous development. Laparoscopy coexists with robotic surgery today, and in the last decade there have been many techniques that have undergone a boom with the use of a laparoscopic approach (total and partial nephrectomy, pyeloplasty, colposacropexy, etc.).We intend to evaluate the progressive incorporation of different surgical techniques in the laparoscopic learning program and, on the other hand, to analyze the evolution of training programs in urological laparoscopy to bring this type of techniques within the hospital surgical activity. We describe our 30-years experience in different training programs in urological laparoscopy that have been sponsored by the Spanish Association of Urology (AEU), and have undergone several validity studies to assess their capacity in order to evaluate effectively basic and advanced laparoscopic skills. We will also highlight the current and future trend towards training models based on surgical competences where individualized training, accreditation and specialization of tutors is crucial, and where the increase in the use of training and evaluation methods based on the simulation are increasingly common. PMID- 29336335 TI - [Evaluation of competencies in urology. Esscolap(r) basic, as aproximation to urologists skills improvement.] AB - : Urology needs models of competencies assessment, although there is a wide range of tools not yet integrated into the official training programs. CONTEXT: At present, there is no universal framework for measuring surgeons' level of competence. Urology training programs should provide and consider knowledge, pyschomotor/cognitive skills, and simulator, cadaver or animal models-based training. Validity is a complex concept that refers to the capacity of the evaluation tool, so it is necessary to demonstrate several types of validation to assure the capacity of a method, reinforced with different reliability tests and calculation of internal consistency between evaluators. OBJECTIVE: Based on a structured dossier of surgical skills, classified by groups, the ESSCOLAP(r) Basic system was proposed with 5 simulator tasks to evaluate basic laparoscopic skills. Once validated in the JUMISC (Spain), the tool was proposed to extend its scope and implementation in other locations. RESULTS: Our system has not yet demonstrated a full validity in the real clinical setting because a predictive validity needs to be demonstrated on the basis of clinical data. It also suffers from a certain range of subjectivity, thus implying clear and defined criteria for any situation. Factors like the number of evaluators and tasks to assess will influence the reliability tests that measure the degree of agreement between evaluators, so that a higher number of evaluated cases would imply a greater reliability of our system. Finally, we assume that the incorporation of this type of tools implies an added cost, charged to the public and private responsible institutions, which will only be considered cost-effective when it is demonstrated its real and positive traceability in health outcomes. CONCLUSIONS: ESSCOLAP(r) Basic, of quick and simple implementation capacity, has been validated and calibrated for the evaluation of basic technical skills in laparoscopy. PMID- 29336336 TI - [Training program in urological laparoscopic surgery. Future perspective.] AB - Nowadays in urology, laparoscopic surgery is a reality that implies a very high percentage of the daily surgical activity. The interest in laparoscopy in urological pathology is undeniable, and the advantages for our patients with this approach are clear in most cases. But how do we deal with learning curve of this technique? What is the difficulty in laparoscopy training? What future perspectives might offer this approach? Difficulties in learning laparoscopy are easily identified and clear. The loss of the image in 3 dimensions, loss of touch, great dependence on surgical instruments, among others. For all these reasons, it seems common sense that the learning of laparoscopic surgery is structured and organized in a progressive increase in the difficulty of the exercises, which will seek to acquire the necessary skills before facing the patient inside the operating room. PMID- 29336337 TI - [Training program in endourological surgery. Future perspectives.] AB - Current training in urological endoscopy lacks a specific training program. However, there is a clear need for a specific and uniform program, which will ensure the training, regardless of the unit where it is carried out. So, the goal is to first evaluate the current model and then bring improvements for update. The hospital training accreditation programme are only the adjustment of the official program of the urology specialty to the specific circumstances of each center, which causes variability in training of residents. After reviewing 19 training programs belonging to 12 Spanish regions. The current outlook shows that scarcely 10% of hospitals quantify the number of procedures/ year, although the Spanish program emphasizes that the achievement of the residents should be quantified. Urology residents, sense their training as inadequate and therefore their level of satisfaction is moderate. The three main problems detected by residents as an obstacle on their training are: the lack of supervision, tutors completing their own learning. Finally, the lack of quantification in surgical activities is described as a threat. This has no easy solution, since the learning curve of the most common techniques in endourology is not correctly established. Regarding aspects that can improve the current model, they highlight the need to design a specific program. The need to customize the training, the ineludible accreditation of tutors and obviously dignify the tutor's teaching activity. Another basic aspect is the inclusion of new technologies as training tools, e-learning. As well as the implementation of an adequate competency assessment plan and the possibility of relying on simulation systems. Finally, they highlight the need to attend monographic meetings and external clinic rotations to promote critical training. PMID- 29336338 TI - Training in urological robotic surgery. Future perspectives. AB - As robotics are becoming more integrated into the medical field, robotic training is becoming more crucial in order to overcome the lack of experienced robotic surgeons. However, there are several obstacles facing the development of robotic training programs like the high cost of training and the increased operative time during the initial period of the learning curve, which, in turn increase the operative cost. Robotic-assisted laparoscopic prostatectomy is the most commonly performed robotic surgery. Moreover, robotic surgery is becoming more popular among urologic oncologists and pediatric urologists. The need for a standardized and validated robotic training curriculum was growing along with the increased number of urologic centers and institutes adopting the robotic technology. Robotic training includes proctorship, mentorship or fellowship, telementoring, simulators and video training. In this chapter, we are going to discuss the different training methods, how to evaluate robotic skills, the available robotic training curriculum, and the future perspectives. PMID- 29336339 TI - [Training program in oncologic urology. Future prospectives.] AB - Urology is a medical-surgical specialty that deals with the study, diagnosis and treatment of the medical and surgical diseases of the urinary apparatus and retroperitoneum in both sexes and the male genital apparatus without age limit, due to congenital, traumatic, septic, metabolic, obstructive and oncological conditions. Urologic oncology is the broadest urological part, where research and new advances make continuous learning essential. In this chapter we treat all academic features related with training in the field of Urooncology. PMID- 29336340 TI - [Training program on medical urology: Future perspectives.] AB - Urology is defined as the medical-surgical specialty that includes the study, diagnosis and treatment of medical conditions of the urinary system. It is well specified by the National Commission of Specialties that we must know the medical pathology that concerns us. However, on occasions, resident training focuses on the surgical field and oncological pathology, which, although one of the main pillars of the specialty, is usually to the detriment of training in medical and functional pathology. We conducted a survey of residents in the fourth year of Urology in Spain, where we asked about the quality of training in Andrology and Functional Urology. The average rotation time is 3.5 months in each unit. Only 20% consider that their training is satisfactory and sufficient in Andrology. Seventy-five percent of residents surveyed believe that their training in Functional Urology is acceptable or sufficient, both medical and surgical. There are numerous fields of action to improve the training of residents and young urologists in this country in the management of urological medical pathology. The future is open, and it is in our hand to set up a training for urology residents within excellence and to be recognized both nationally and internationally as one of the great pillars of Spanish Urology. In this chapter we will analyze the current situation in the training of Spanish Urology Residents in urological medical pathology, and we will focus on training in functional urology and andrology. PMID- 29336341 TI - [Academic opportunities for Urology residents in Spain.] AB - The development of an academic career gives a new dimension to the chosen specialty. It consists in combining clinical activity with teaching and research activity. In the area of surgical specialties there is currently a lack of academic positions which is necessary to overcome to maintain the quality standards. Residency and the immediate posterior period it is a good time to star our academic career. This side of our specialty demands an additional effort, great motivation, clear and determined objectives and especially dedication. Considering Urology is a medical-surgical specialty it offers a perfect scenario for the development of research activity. In this article we review some of the available options to develop an academic career starting during residency. Among them we find some indispensable if one wants to develop an universitary career and others that facilitate the learning of scientific methodology, indispensable to elaborate a research project. PMID- 29336342 TI - [Homogeneity of the European training program. The role of the European Board of Urology.] AB - From its origins and acting through its specific committees, the E.B.U. has been dedicated to the improvement and standardization of urological training across Europe. Identifying minimal requirements for urology training, publishing a European Curriculum and defining basic rules for accreditation of educational activities, hence, offering a systematic assessment for the recognition of quality. Working through different dedicated committees, the E.B.U. oversees every aspect on the urological training in Europe. The Accreditation Committee sets standards for the accreditation of educational/scientific activities and ensures the proper evaluation of submissions for CME/ CPD accreditation. The Certification Committee oversees the appropriate implementation of the EBU Certification programme and ensures a thorough quality assessment process that aims to standardise urological training across Europe. Finally, the Examination Committee, that is structured into two sub-committees one for the In Service Assessment (I.S.A.) and the written F.E.B.U. examination (Part 1) and a second for the oral F.E.B.U. examination (Part 2). The committee works to ensure that all EBU examinations and associated assessment activities are thoroughly prepared and conducted in accordance with EBU's criteria. PMID- 29336343 TI - [On line learning in urologic surgery. The value of the 2.0 Web tools.] AB - The field of Surgery is under the pressure of accelerated change where technological cycles get shorter and shorter, sometimes transformational. Learning and training have gotten a key role because learning curves for new techniques directly affect patient's safety and learning cycles are slower. The traditional learning model within the urology department is overwhelmed. We need new training and learning methods. The aim of this article is to perform a critical analysis of the current status of learning in urological surgery and the challenges we face, evaluating how new information and communication technologies can help us to facilitate the learning process. We also present our initial experience with on line education on upper urinary tract laparoscopic and robotic surgery using the 2.0 Web tools. PMID- 29336344 TI - [The urologist of the future and new technologies.] AB - The last 25 years have brought about revolutionary changes for medicine and in particular for urology: internet was only in its infancy, medical records were written on paper, searches for medical information were done in the hospital library, medical articles were photocopied and our relationship with patients only existed face to face. Social networks had not yet appeared and even Google did not exist. Just imagine what might happen during the next 25 years, we're going to see even more radical changes. The urologist of the future is going to see the arrival of artificial intelligence, collaborative medicine, telemedicine, machine learning, the Internet of Things and personalized robotics; in the meantime, social media will continue to transform the interaction between physician and patient. The training of urologists will also be different thanks to new learning technologies such as virtual reality or augmented reality. IBM Watson Health through its system of artificial intelligence and its learning algorithms will become our essential travel companion. The urologist of the future, as well as physician, will have to acquire the necessary technological skills in order to use all these new tools which are already on the horizon. PMID- 29336345 TI - [The role of social media in academic training in Urology. Adequate use.] AB - Social media is characterized because all its services are participative. Users of 2.0 technologies can interact easily and openly with other people, share resources and communicate immediately and simultaneously. Research improves from participatory technologies by allowing groups to share reflections, methodologies, resources and results.The social media platform with greater diffusion and use in urology is possibly Twitter because it allows to realize what is known like "microblogging", the users generate comments and brief messages through the creation of "tweets". It is possible to determine that there are three broad areas from a scientific point of view in which social media are manifested: sharing research, resources and results. The use and applications of social media become a major responsibility in the area of health and urology, obviously for reasons of privacy, scientific rigor, ethics and the nature of the medical - legal content. PMID- 29336346 TI - Future of Urology training. AB - Urology has become more complex through the years, as it comprises increasingly sophisticated medical and surgical technologies such as advanced medical tumour therapies, and endourological, laparoscopicand robotic surgical techniques. Training in urology starts during medical school and once a medical student chooses to specialize on it, becomes life-long. Becoming a good urologist requires a highly qualified education and sufficient experience. To devise a training programme of high proficiency, several important factors must be considered. There are many studies in the literature revealing the thoughts of urology residents towards their training, needs and the realities. The aim of this chapter is to review the new technologies in urology training and show the new pathway of the future of training in urology. PMID- 29336347 TI - Electromigration and morphological changes in Ag nanostructures. AB - Electromigration (EM) as a structuring tool was investigated in Ag nanowires (width 300 nm, thickness 25 nm) and partly in notched and bow-tie Ag structures on a Si(1 0 0) substrate in ultra-high vacuum using a four-tip scanning tunneling microscope in combination with a scanning electron microscope. From simulations of Ag nanowires we got estimates of temperature profiles, current density profiles, EM and thermal migration (TM) mass flux distributions within the nanowire induced by critical current densities of 108 A cm-2. At room temperature, the electron wind force at these current densities by far dominates over thermal diffusion, and is responsible for formation of voids at the cathode and hillocks at the anode side. For current densities that exceed the critical current densities necessary for EM, a new type of wire-like structure formation was found both at room temperature and at 100 K for notched and bow-tie structures. This suggests that the simultaneous action of EM and TM is structure forming, but with a very small influence of TM at low temperature. PMID- 29336348 TI - Optimizing highly noncoplanar VMAT trajectories: the NoVo method. AB - We introduce a new method called NoVo (Noncoplanar VMAT Optimization) to produce volumetric modulated arc therapy (VMAT) treatment plans with noncoplanar trajectories. While the use of noncoplanar beam arrangements for intensity modulated radiation therapy (IMRT), and in particular high fraction stereotactic radiosurgery (SRS), is common, noncoplanar beam trajectories for VMAT are less common as the availability of treatment machines handling these is limited. For both IMRT and VMAT, the beam angle selection problem is highly nonconvex in nature, which is why automated beam angle selection procedures have not entered mainstream clinical usage. NoVo determines a noncoplanar VMAT solution (i.e. the simultaneous trajectories of the gantry and the couch) by first computing a [Formula: see text] solution (beams from every possible direction, suitably discretized) and then eliminating beams by examing fluence contributions. Also all beam angles are scored via geometrical considerations only to find out the usefulness of the whole beam space in a very short time. A custom path finding algorithm is applied to find an optimized, continuous trajectory through the most promising beam angles using the calculated score of the beam space. Finally, using this trajectory a VMAT plan is optimized. For three clinical cases, a lung, brain, and liver case, we compare NoVo to the ideal [Formula: see text] solution, nine beam noncoplanar IMRT, coplanar VMAT, and a recently published noncoplanar VMAT algorithm. NoVo comes closest to the [Formula: see text] solution considering the lung case (brain and liver case: second), as well as improving the solution time by using geometrical considerations, followed by a time effective iterative process reducing the [Formula: see text] solution. Compared to a recently published noncoplanar VMAT algorithm, using NoVo the computation time is reduced by a factor of 2-3 (depending on the case). Compared to coplanar VMAT, NoVo reduces the objective function value by 24%, 49% and 6% for the lung, brain and liver cases, respectively. PMID- 29336349 TI - Nanodoping: a route for enhancing electro-optic performance of bent core nematic system. AB - We report the effect of dispersion of barium titanate (BaTiO3) nanoparticles (BNPs) in a four ring bent core nematic (BCN) liquid crystal. Polarizing optical microscopy reveals the presence of a single nematic phase in pure and doped states. Polar switching has been observed in the bent core system and the value of spontaneous polarization (P s) increases with increase in doping concentration of BNPs in BCN. Dielectric study shows a lower frequency mode, which can be ascribed to the formation of cybotactic clusters. These clusters are also responsible for the observed polar switching in pure, as well as, in doped BCNs. Another higher frequency mode, observed only in pure BCN, indicates the rotation of molecules about their long molecular axis. The conductivity of doped samples is also found to decrease as compared to the pure BCN. This reduction helps in the minimization of negative effects caused by free ions in liquid crystal based devices. This study demonstrates that the interaction between BNPs and BCN molecules improves the P s, dielectric behaviour, viscosity and reduces the conductivity of pure BCN. Hence, nanodoping in a BCN is an effective method for the enhancement of electro-optic performances and will lead to the development of faster electro-optic devices. PMID- 29336350 TI - Mixed matrix membranes with fast and selective transport pathways for efficient CO2 separation. AB - To improve CO2 separation performance, porous carbon nanosheets (PCNs) were used as a filler into a Pebax MH 1657 (Pebax) matrix, fabricating mixed matrix membranes (MMMs). The PCNs exhibited a preferential horizontal orientation within the Pebax matrix because of the extremely large 2D plane and nanoscale thickness of the matrix. Therefore, the micropores of the PCNs provided fast CO2 transport pathways, which led to increased CO2 permeability. The reduced pore size of the PCNs was a consequence of the overlapping of PCNs and the polymer chains penetrating into the pores of the PCNs. The reduction in the pore size of the PCNs improved the CO2/gas selectivity. As a result, the CO2 permeability and CO2/CH4 selectivity of the Pebax membrane with 10 wt% PCNs-loading (Pebax-PCNs 10) were 520 barrer and 51, respectively, for CO2/CH4 mixed-gas. The CO2 permeability and CO2/N2 selectivity of the Pebax-PCNs-10 membrane were 614 barrer and 61, respectively, for CO2/N2 mixed-gas. PMID- 29336351 TI - Microwave absorption properties of reduced graphene oxide strontium hexaferrite/poly(methyl methacrylate) composites. AB - The key factors to consider when designing microwave absorber materials for eradication of electromagnetic (EM) pollution are absorption of incident EM waves and good impedance matching. By keeping these things in mind, flexible microwave absorber composite films can be fabricated by simple gel casting techniques using reduced graphene oxide (RGO) and strontium ferrite (SF) in a poly(methyl methacrylate) (PMMA) matrix. SF nanoparticles are synthesized by the well known sol-gel method. Subsequently, reduced graphene oxide (RGO) and SF nanocomposite (RGOSF) are prepared through a chemical reduction method using hydrazine. The structure, morphology, chemical composition, thermal stability and magnetic properties of the nanocomposite are characterized in detail by various techniques. The SF particles are found to be nearly 500 nm and decorated on RGO sheets as revealed by field emission scanning electron microscopy and transmission electron microscopy analysis. Fourier transform infrared and and Raman spectroscopy clearly show the presence of SF in the graphene sheet by the lower peak positions. Finally, ternary polymer composites of RGO/SF/PMMA are prepared by an in situ polymerization method. Magnetic and dielectric studies of the composite reveal that the presence of RGO/SF/PMMA lead to polarization effects contributing to dielectric loss. Also, RGO surrounding SF provides a conductive network in the polymer matrix which is in turn responsible for the magnetic loss in the composite. Thus, the permittivity as well as the permeability of the composite can be controlled by an appropriate combination of RGO and SF in PMMA. More than 99% absorption efficiency is achieved by a suitable combination of magneto-dielectric coupling in the X-band frequency range by incorporating 9 wt% of RGO and 1 wt% of SF in the polymer matrix. PMID- 29336352 TI - One-pot synthesis of a PtPd dendritic nanocube cage superstructure on graphenes as advanced catalysts for oxygen reduction. AB - How to use Pt economically and efficiently in the oxygen reduction reaction (ORR) is of theoretical and practical significance for the industrialization of the proton-exchange membrane fuel cells. In order to minimize Pt consumption and optimize the ORR performance, the ORR catalysts are recommended to be designed as a porous nanostructure. Herein, we report a one-pot solvothermal strategy to prepare PtPd dendritic nanocube cages via a galvanic replacement mechanism triggered by an I- ion. These PtPd alloy crystals are nanoporous, and uniformly dispersed on reduced graphene oxides (RGOs). The size of the PtPd dendritic nanocube cages can be easily tuned from 20-80 nm by controlling their composition. Their composition is optimized to be 1:5 Pt/Pd atomic ratio for these RGO-supported PtPd dendritic nanocages. This catalyst shows superior ORR performance with a specific activity of 2.01 mA cm-2 and a mass activity of 4.45 A mg-1 Pt, far above those for Pt/C catalysts (0.288 mA cm-2 for specific activity, and 0.21 A mg-1 Pt for mass activity). In addition to ORR activity, it also exhibits robust durability with almost negligible decay in ORR mass activity after 10 000 voltammetric cycling. PMID- 29336353 TI - Perovskite nanocrystals: across-dimensional attachment, film-scale assembly on a flexible substrate and their fluorescence properties. AB - Perovskite nanocrystals (NCs), which are a good fluorescence candidate with excellent photoelectric properties, have opened new avenues in the fabrication of highly efficient solar cells, light-emitting diodes (LEDs), and other optoelectronic devices. Further advances will rely on the multitude of compositional, structural variants that enable the formation of lower dimensionality layered and three-dimensional (3D) perovskites with architectural innovations. In this work, the perovskite film was fabricated on a flexible substrate using simple dip-coating technology and 3D assemblies of perovskite NCs were obtained through an attachment process. Original perovskite NCs had a rectangular or square morphology with high particle uniformity and the narrow and symmetric fluorescence emission peak was adjustable at 515-527 nm. The controllable self-assembly of the micron size cuboid-like 3D assembly had an apparent enhancement on peak (111) in the x-ray diffraction (XRD) pattern. Surface ligands not only play a role in the attachment process but also keep the independence of each NC in 3D assemblies. Such assembly of the perovskite film maintained the original perovskite NCs fluorescence emission peak and narrow full width at the half-maximum (FWHM), which is of great importance for the investigation of future devices. PMID- 29336354 TI - An analytical poroelastic model for ultrasound elastography imaging of tumors. AB - The mechanical behavior of biological tissues has been studied using a number of mechanical models. Due to the relatively high fluid content and mobility, many biological tissues have been modeled as poroelastic materials. Diseases such as cancers are known to alter the poroelastic response of a tissue. Tissue poroelastic properties such as compressibility, interstitial permeability and fluid pressure also play a key role for the assessment of cancer treatments and for improved therapies. At the present time, however, a limited number of poroelastic models for soft tissues are retrievable in the literature, and the ones available are not directly applicable to tumors as they typically refer to uniform tissues. In this paper, we report the analytical poroelastic model for a non-uniform tissue under stress relaxation. Displacement, strain and fluid pressure fields in a cylindrical poroelastic sample containing a cylindrical inclusion during stress relaxation are computed. Finite element simulations are then used to validate the proposed theoretical model. Statistical analysis demonstrates that the proposed analytical model matches the finite element results with less than 0.5% error. The availability of the analytical model and solutions presented in this paper may be useful to estimate diagnostically relevant poroelastic parameters such as interstitial permeability and fluid pressure, and, in general, for a better interpretation of clinically-relevant ultrasound elastography results. PMID- 29336355 TI - Evaluation of cardiolipin nanodisks as lipid replacement therapy for Barth syndrome AB - Barth syndrome (BTHS) is a mitochondrial disorder characterized by cardiomyopathy and skeletal muscle weakness. Disease results from mutations in the tafazzin (TAZ) gene, encoding a phospholipid transacylase. Defective tafazzin activity results in an aberrant cardiolipin (CL) profile. The feasibility of restoring the intracellular CL profile was tested by in vivo administration of exogenous CL in nanodisk (ND) delivery particles. Ninety mg/kg CL (as ND) was administered to doxycycline-inducible taz shRNA knockdown (KD) mice once a week. After 10 weeks of CL-ND treatment, the mice were sacrificed and tissues harvested. Liquid chromatography-mass spectrometry of extracted lipids revealed that CL-ND administration failed to alter the CL profile of taz KD or WT mice. Thus, although CL-ND were previously shown to be an effective means of delivering CL to cultured cells, this effect does not extend to an in vivo setting. We conclude that CL-ND administration is not a suitable therapy option for BTHS. PMID- 29336356 TI - Tcf7l1 promotes transcription of Kruppel-likefactor 4 during Xenopus embryogenesis. AB - Kruppel-like factor 4 (Klf4) is a zinc finger transcriptionfactor and plays crucial roles in Xenopus embryogenesis. However, its regulation during embryogenesis is stillunclear. Here, we report that Tcf7l1, a key downstream transducerof the Wnt signaling pathway, could promote Klf4 transcription and stimulate Klf4 promoter activity in early Xenopus embryos. Furthermore, cycloheximide treatmentshowed a direct effect on Klf4 transcriptionfacilitated by Tcf7l1. Moreover, the dominant negative form of Tcf7l1(dnTcf7l1), which lacks N terminusof the beta-catenin binding motif, could still activate Klf4 transcription, suggesting that thisregulation is Wnt/beta-catenin independent. Taken together, ourresults demonstrate that Tcf7l1 lies upstream of Klf4 to maintainits expression level during Xenopus embryogenesis. PMID- 29336357 TI - Distinctive roles of Rac1 and Rab29 in LRRK2 mediated membrane trafficking and neurite outgrowth. AB - Parkinson's disease (PD) associated leucine-rich repeat kinase 2 (LRRK2) mutants have shown pathogenic effects on variety of subcellular processes.Two small GTPases Rac1 and Rab29 have been indicated as possible downstream effectors participating in LRRK2 signaling but their detail mechanisms remain unclear. In this study, we have used biochemical and cell biology approaches to address whether two GTPases interact with LRRK2 and hence function differently in LRRK2 mediated pathogenesis.Here we show thatRac1 and Rab29 specifically interact with LRRK2with higher affinity for Rab29and with different preference in functional domain binding. Mutant Rab29 but not Rac1 alters theendosome-to-TGN retrograde trafficking of a cargo protein cation-independent mannose-6-phosphate receptor (CI-M6PR) and its stability. On the other hand, overexpressedwild type Rab29 but not Rac1 rescue the altered retrograde membrane trafficking induced by the pathogenic mutant LRRK2G2019S. Furthermore, both Rac1 and Rab29 can rescue the neurite shortening in differentiated SH-SY5Y cells induced by LRRK2G2019S. Our study strongly suggests that Rac1 and Rab29 are involved in the distinct functions as downstream effectors in LRRK2 signaling pathways. PMID- 29336358 TI - Risk Factors, Regional Disparity and Trends of Ischemic Stroke Etiologic Subtypes. PMID- 29336359 TI - White Matter Lesions Predict Recurrent Vascular Events in Patients with Transient Ischemic Attacks. AB - BACKGROUND: White matter lesions (WMLs) are common findings in brain magnetic resonance imaging (MRI) and are strongly associated with stroke incidence, recurrence, and prognosis. However, the relationship between WMLs and transient ischemic attacks (TIAs) is not well established. This study aimed to determine the clinical significance of WMLs in patients with TIA. METHODS: A total of 181 consecutive inpatients with first-ever TIA were enrolled. Brain MRIs within 2 days of symptom onset were used to measure WML volumes. Recurrent vascular events within 1 year of TIA onset were assessed. The relationship between WMLs and recurrent risk of vascular events was determined by a multivariate logistic regression. RESULTS: WMLs were identified in 104 patients (57.5%). Age and ratio of hypertension were significantly different between patients with and without WMLs. The incidence of vascular events in patients with WMLs significantly increased in comparison to those without WMLs (21.15% vs. 5.19%, 95% confidence interval [CI]: 1.18-15.20, P = 0.027) after controlling for confounders. Furthermore, distributions of WML loads were found to be different between patients who developed vascular events and those who did not. WML volumes were demonstrated to be correlated with recurrent risks, and the fourth quartile of WML volumes led to an 8.5-fold elevation of recurrent risk of vascular events compared with the first quartile (95% CI: 1.52-47.65, P = 0.015) after adjusting for hyperlipidemia. CONCLUSION: WMLs occur frequently in patients with TIA and are associated with the high risk of recurrent vascular events, suggesting a predictive neuroimaging marker for TIA outcomes. PMID- 29336360 TI - Early Neurological Deterioration after Recanalization Treatment in Patients with Acute Ischemic Stroke: A Retrospective Study. AB - BACKGROUND: Early neurological deterioration (END) is a prominent issue after recanalization treatment. However, few studies have reported the characteristics of END after endovascular treatment (EVT) as so far. This study investigated the incidence, composition, and outcomes of END after intravenous recombinant tissue plasminogen activator (IV rt-PA) and EVT of acute ischemic stroke, and identified risk factors for END. METHODS: Medical records of patients who received recanalization treatment between January 1, 2014, and December 31, 2015 were reviewed. Patients were classified into IV rt-PA or EVT group according to the methods of recanalization treatment. The END was defined as an increase in the National Institutes of Health Stroke Scale (NIHSS) >=4 or an increase in Ia of NIHSS >=1 within 72 h after recanalization treatment. Clinical data were compared between the END and non-END subgroups within each recanalization group. RESULTS: Of the 278 patients included in the study, the incidence of END was 34.2%. The incidence rates of END were 29.8% in the IV rt-PA group and 40.2% in the EVT group. Ischemia progression (68.4%) was the main contributor to END followed by vasogenic cerebral edema (21.1%) and symptomatic intracranial hemorrhage (10.5%). Multivariate logistic regression showed that admission systolic blood pressure (SBP) >=160 mmHg (odds ratio [OR]: 2.312, 95% confidence interval [CI]: 1.105 4.837) and large artery occlusion after IV rt-PA (OR: 3.628, 95% CI: 1.482-8.881) independently predicted END after IV rt-PA; and admission SBP >=140 mmHg (OR: 5.183, 95% CI: 1.967-13.661), partial recanalization (OR: 4.791, 95% CI: 1.749 13.121), and nonrecanalization (OR: 5.952, 95% CI: 1.841-19.243) independently predicted END after EVT. The mortality rate and grave outcome rate at discharge of all the END patients (26.3% and 55.8%) were higher than those of all the non END patients (1.1% and 18.6%; P < 0.01). CONCLUSIONS: END was not an uncommon event and associated with death and grave outcome at discharge. High admission SBP and unsatisfactory recanalization of occluded arteries might predict END. PMID- 29336361 TI - Muscle Magnetic Resonance Imaging for the Differentiation of Multiple Acyl-CoA Dehydrogenase Deficiency and Immune-mediated Necrotizing Myopathy. AB - BACKGROUND: Clinically, it is difficult to differentiate multiple acyl-CoA dehydrogenase deficiency (MADD) from immune-mediated necrotizing myopathy (IMNM) because they display similar symptoms. This study aimed to determine whether muscle magnetic resonance imaging (MRI) could be used for differential diagnosis between MADD and IMNM. METHODS: The study evaluated 25 MADD patients, confirmed by muscle biopsy and ETFDH gene testing, and 30 IMNM patients, confirmed by muscle biopsy. Muscles were assessed for edema and fatty replacement using thigh MRI (tMRI). Degrees and distribution patterns of fatty infiltration and edema in gluteus maximus and thigh muscles were compared. RESULTS: Total fatty infiltration and edema scores (median, [Q1, Q3]) were 4.00 (1.00, 15.00) and 0 (0, 4.00) in MADD and 14.50 (8.00, 20.75) and 22.00 (16.75, 32.00) in IMNM, respectively, which were significantly more severe in IMNM than that in MADD (P = 0.000 and P = 0.004, respectively). Edema scores for gluteus maximus, long head of biceps femoris, and semimembranosus were significantly higher in IMNM than in MADD (all P = 0.000). Fatty infiltration scores for anterior and medial compartments were significantly more severe in IMNM than that in MADD (all P = 0.000). CONCLUSION: Different patterns of muscle involvement on tMRI can contribute to differential diagnosis between MADD and IMNM when clinical suspicions alone are insufficient, thereby reducing the need for muscle biopsy. PMID- 29336362 TI - Screening for SH3TC2, PMP2, and BSCL2 Variants in a Cohort of Chinese Patients with Charcot-Marie-Tooth. AB - BACKGROUND: SH3TC2, PMP2, and BSCL2 genes are related to autosomal recessive (AR) Charcot-Marie-Tooth (CMT) disease type 1, autosomal dominant (AD)-CMT1, and AD CMT2, respectively. Pathogenic variants in these three genes were not well documented in Chinese CMT patients. Therefore, this study aims to detect SH3TC2, PMP2, and BSCL2 pathogenic variants in a cohort of 315 unrelated Chinese CMT families. METHODS: A total of 315 probands from 315 unrelated Chinese CMT families were recruited from the Department of Neurology of Third Xiangya Hospital and Xiangya Hospital. We screened for SH3TC2 pathogenic variants in 84 AR or sporadic CMT probands, PMP2 pathogenic variants in 39 AD or sporadic CMT1 probands, and BSCL2 pathogenic variants in 50 AD or sporadic CMT2 probands, using polymerase chain reaction and Sanger sequencing. All these patients were out of 315 unrelated Chinese CMT families and genetically undiagnosed after exclusion of pathogenic variants of PMP22, MFN2, MPZ, GJB1, GDAP1, HSPB1, HSPB8, EGR2, NEFL, and RAB7. Candidate variants were analyzed based on the standards and guidelines of American College of Medical Genetics and Genomics (ACMG). Clinical features were reevaluated. RESULTS: We identified three novel heterozygous variants such as p.L95V (c.283C>G), p.L1048P (c.3143T>C), and p.V1105M (c.3313G>A) of SH3TC2 gene and no pathogenic variants of PMP2 and BSCL2 genes. Although evaluation in silico and screening in the healthy control revealed that the three SH3TC2 variants were likely pathogenic, no second allele variants were discovered. According to the standards and guidelines of ACMG, the heterozygous SH3TC2 variants such as p.L95V, p.L1048P, and p.V1105M were considered to be of uncertain significance. CONCLUSIONS: SH3TC2, PMP2, and BSCL2 pathogenic variants might be rare in Chinese CMT patients. Further studies to confirm our findings are needed. PMID- 29336363 TI - Utility and Safety of Intrathecal Methotrexate Treatment in Severe Anti-N-methyl D-aspartate Receptor Encephalitis: A Pilot Study. AB - BACKGROUND: Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is a treatable autoimmune neurologic syndrome that occurs with or without tumor association. However, some severe cases are refractory to systemic immunotherapy. This pilot study aimed to evaluate the utility and safety of intrathecal methotrexate injection for severe patients with anti-NMDAR encephalitis who did not respond to first-line immunotherapy. METHODS: Intrathecal injections with methotrexate and dexamethasone were performed weekly in four legible patients within consecutive 4 weeks. Cerebrospinal fluid (CSF) was collected at baseline and each time of intrathecal injection for identification of anti-NMDAR antibody titers. RESULTS: Significant clinical improvement was observed in three patients associated with a stepwise decrease of CSF anti-NMDAR antibody titers (maximum: 1/320 to minimum: 1/10). After 2 months of follow-up, they were able to follow simple commands and had appropriate interactions with people (modified Rankin scale [mRS] of 0-2). At 12 months of follow-up, they all had returned to most activities of daily life (mRS of 0), and no relapses were reported. One patient showed no clinical improvement and died of neurologic complications. CONCLUSIONS: Intrathecal treatment may be a potentially useful supplementary therapy in severely affected patients with anti-NMDAR encephalitis. Further large cohort study and animal experiment may help us elaborate the utility of intrathecal injection of methotrexate and its mechanism of action. PMID- 29336364 TI - Mechanism of Chronic Stress-induced Reduced Atherosclerotic Medial Area and Increased Plaque Instability in Rabbit Models of Chronic Stress. AB - BACKGROUND: Chronic stress contributes to increased risks of atherosclerotic diseases including heart disease, stroke, and transient ischemic attack. However, its underline mechanisms are poorly understood. This study aimed to elucidate the mechanism via which chronic stress exerts its effect on atherosclerosis (AS). METHODS: Fifty male New Zealand white rabbits were used. Aortic balloon-injury model was applied. Both social stress and physical stress methods were adopted to establish chronic stress models. The lumen stenotic degree, intimal and medial areas, maximum fibrous cap thickness, and plaque contents were measured with histological sections. Proteomic methods were applied to detect protein changes in abdominal aortas to identify the specialized mediators. Real-time reverse transcription-polymerase chain reaction was used for further verification and investigation. RESULTS: The stress rabbits exhibited lower body weight, worse fur state, more inactivity behavior, and higher serum cortisol level. Chronic stress was significantly associated with the decreased medial area and increased plaque instability, which was manifested by thinner fibrous caps, larger lipid cores, more macrophages, and new vessels but fewer smooth muscle cells and elastic fibers. After chronic stress, the apoptosis-related genes UBE2K, BAX, FAS, Caspase 3, Caspase 9, and P53 were upregulated, and BCL-2/BAX was down-regulated; the angiogenesis-related genes ANG and VEGF-A were also highly expressed in atherosclerotic arteries. CONCLUSIONS: Rabbit models of chronic stress were successfully established by applying both social stress and physical stress for 8 weeks. Chronic stress can reduce AS tunica media and accelerate plaque instability by promoting apoptosis and neovascularization. PMID- 29336365 TI - IL1F7 Gene Polymorphism Is not Associated with Rheumatoid Arthritis Susceptibility in the Northern Chinese Han Population: A Case-Control Study. AB - BACKGROUND: Interleukin (IL)-37, also called IL1F7, is a natural inhibitor of inflammatory and immune responses. It is involved in the pathogenesis of rheumatoid arthritis (RA). This study aimed to investigate the role of IL1F7 gene polymorphism in RA susceptibility in a large cohort of patients. METHODS: Five selected single-nucleotide polymorphisms in IL1F7 genes (rs2723186, rs3811046, rs4241122, rs4364030, and rs4392270) were genotyped by TaqMan Allelic Discrimination in Northern Chinese Han population. The allele and the genotype were compared between patients with RA and healthy controls. Association analyses were performed on the entire data set and on different RA subsets based on the status of the anti-cyclic citrullinated peptide antibody and the rheumatoid factor by logistic regression, adjusting for age and gender. RESULTS: Trend associations were detected between rs2723186, rs4241122, rs4392270, and RA in Stage I (160 patients with RA; 252 healthy controls). Further validation in Stage II comprised 730 unrelated patients with RA (mean age: 54.9 +/- 12.6 years; 81.6% females) and 778 unrelated healthy individuals (mean age: 53.5 +/- 15.7 years; 79.5% females). No significant differences in the distributions of alleles and genotypes were observed between the case and control groups in both the entire set and the different RA subsets. Disease activity and age of RA onset were also not associated with genotype distributions. CONCLUSION: IL1F7 gene polymorphism does not significantly influence RA susceptibility in the Northern Chinese Han population. PMID- 29336366 TI - Potential Value of Datura stramonium Agglutinin-recognized Glycopatterns in Urinary Protein on Differential Diagnosis of Diabetic Nephropathy and Nondiabetic Renal Disease. AB - BACKGROUND: Diabetic nephropathy (DN) is the most common and serious microvascular complication of diabetes. To date, the gold standard for identifying DN and nondiabetic renal disease (NDRD) is a renal biopsy; however, there is currently no reliable diagnostic marker to identify DN and NDRD in a noninvasive manner. This study aimed to investigate the different glycopatterns in urine specimens of DN patients and NDRD patients for a differential diagnosis. METHODS: In total, 19 DN patients and 18 NDRD patients who underwent renal biopsies between March 2015 and March 2016 at the Chinese People's Liberation Army General Hospital were enrolled in this study. A lectin microarray was used to investigate the glycopatterns in the urinary protein of the 37 patients. Ratio analysis and one-way analysis of variance were used to screen altered glycopatterns. Then, the altered glycopatterns between the DN and NDRD groups were verified by a urinary protein microarray among another 32 patients (15 with DN and 17 with NDRD), and receiver operating characteristic (ROC) curve analysis was used to determine the diagnostic value of the altered glycopatterns in differentiating DN and NDRD. Finally, lectin blotting was used to evaluate the altered glycosylation in protein level. RESULTS: The result of lectin microarrays revealed that the relative abundance of the (beta-1,4)-linked N-acetyl-D glucosamine (GlcNAc) recognized by lectin Datura stramonium agglutinin (DSA) was significantly higher in urinary protein in DN patients than that in NDRD patients (fold change >1.50, P < 0.001). Subsequently, the results of urinary protein microarrays were consistent with lectin microarrays (P < 0.05). Furthermore, the ROC curve showed that glycopatterns could effectively distinguish DN from NDRD patients (area under the ROC curve = 0.94, P < 0.001). DSA lectin blotting showed that glycoproteins, with a molecular weight of approximately 50,000, demonstrated a difference in urine samples between DN patients and NDRD patients. CONCLUSIONS: The relative abundance of (beta-1,4)-linked GlcNAc recognized by lectin DSA and urinary glycoprotein with a molecular weight of approximately 50,000 are significantly different between DN and NDRD patients, indicating that the glycopatterns could be used as potential biomarkers for a differential diagnosis. PMID- 29336367 TI - Reduction of Tat-interacting Protein 30 Expression Could be a Prognostic Marker in Bladder Urothelial Cancer. AB - BACKGROUND: Tat-interacting protein 30 (TIP30) has been reported to be a tumor suppressor, with reduced or absent expression in various tumors. However, its role in bladder urothelial cancer (BUC) has not been investigated. Therefore, herein, we investigated the expression of TIP30 protein in BUC and normal bladder mucosa and the clinical significance of TIP30 expression in the prognosis of BUC. METHODS: We reviewed data from 79 cases of BUC and 15 adjacent tissue samples from 79 patients treated at our institution between 2004 and 2007. TIP30 expression was examined by immunohistochemistry. The relationship between TIP30 expression and tumor stage, histological grade, and survival was analyzed. Differences between groups were evaluated using the t-test or matched-pairs test, and differences in the survival rates were analyzed with the log-rank test. RESULTS: TIP30 protein expression was significantly reduced in BUC tissue (t = 6.91, P < 0.05) compared with normal tissue samples, and in invasive bladder cancer (t = 10.89, P < 0.05) compared with superficial bladder cancer. TIP30 protein expression differed significantly among different differentiated groups classified either according to the World Health Organization (2004, F = 17.48, P < 0.01) or World Health Organization (1973, F = 10.68, P < 0.01). TIP30 protein expression was significantly reduced in high-grade papillary urothelial carcinoma compared with papillary urothelial neoplasm of low malignant potential (P < 0.05) and low-grade papillary urothelial carcinoma (P < 0.05). Meanwhile, TIP30 protein expression was significantly reduced in Grade III BUC, compared with Grade I (P < 0.05) and Grade II (P < 0.05). Patients with low TIP30 expression showed a higher incidence of disease progression than those with high TIP30 expression (t = 2.63, P < 0.05). Kaplan-Meier survival analysis showed a strong positive relationship between TIP30 expression and overall survival (OS) (chi2 = 17.29, P < 0.05). CONCLUSIONS: TIP30 expression was associated with clinical tumor stage in BUC, suggesting that it might play an important role in disease progression. Furthermore, TIP30 might predict postoperative OS. Thus, its evaluation might be useful for predicting prognosis. PMID- 29336368 TI - Glycosaminoglycan Content of the Lateral Compartment Cartilage in Knees Conforming to the Indications for Oxford Medial Unicompartmental Knee Arthroplasty. AB - BACKGROUND: The quality of the lateral compartment cartilage is important to preoperative evaluation and prognostic prediction of unicompartmental knee arthroplasty (UKA). Delayed gadolinium-enhanced magnetic resonance imaging of cartilage (dGEMRIC) enables noninvasive assessment of glycosaminoglycan (GAG) content in cartilage. This study aimed to determine the GAG content of the lateral compartment cartilage in knees scheduled to undergo Oxford medial UKA. METHODS: From December 2016 to May 2017, twenty patients (20 osteoarthritic knees) conforming to the indications for Oxford medial UKA were included as the osteoarthritis (OA) group, and 20 healthy volunteers (20 knees) paired by sex, knee side, age (+/-3 years), and body mass index (BMI) (+/-3 kg/m2) were included as the control group. The GAG contents of the weight-bearing femoral cartilage (wbFC), the posterior non-weight-bearing femoral cartilage (pFC), the lateral femoral cartilage (FC), and tibial cartilage (TC) were detected using dGEMRIC. The dGEMRIC indices (T1Gd) were calculated in the middle three consecutive slices of the lateral compartment. Paired t-tests were used to compare the T1Gd in each region of interest between the OA group and control group. RESULTS: The average age and BMI in the two groups were similar. In the OA group, T1Gd of FC and TC was 386.7 +/- 50.7 ms and 429.6 +/- 59.9 ms, respectively. In the control group, T1Gd of FC and TC was 397.5 +/- 52.3 ms and 448.6 +/- 62.5 ms, respectively. The respective T1Gd of wbFC and pFC was 380.0 +/- 47.8 ms and 391.0 +/- 66.3 ms in the OA group and 400.3 +/- 51.5 ms and 393.6 +/- 57.9 ms in the control group. Although the T1Gd of wbFC and TC tended to be lower in the OA group than the control group, there was no significant difference between groups in the T1Gd in any of the analyzed cartilage regions (P value of wbFC, pFC, FC, and TC was 0.236, 0.857, 0.465, and 0.324, respectively). CONCLUSIONS: The GAG content of the lateral compartment cartilage in knees conforming to indications for Oxford medial UKA is similar with those of age- and BMI-matched participants without OA. PMID- 29336369 TI - Pedicle Subtraction Osteotomy with a Cage Prevents Sagittal Translation in the Correction of Kyphosis in Ankylosing Spondylitis. AB - BACKGROUND: Sagittal translation (ST) is an accidental event that surgeons commonly encounter during a spinal osteotomy in the correction of kyphosis in ankylosing spondylitis (AS). However, there is a paucity of effective techniques to prevent ST. The purpose of this study was to propose a pedicle subtraction osteotomy (PSO) with a cage as a method to prevent ST and to explore the efficacy and feasibility of this method in the treatment of kyphosis in AS. METHODS: We retrospectively reviewed 89 consecutive patients with AS kyphosis who underwent a PSO (Group B, 46 patients) or a PSO with a cage (Group A, 43 patients) from February 2009 to December 2013. Pre- and post-operative radiographic results were reviewed. ST and complications were analyzed in both groups. Clinical assessment was performed using the Scoliosis Research Society-22 (SRS-22) outcomes metric. The patients were followed up for at least 2 years. RESULTS: Group A achieved the same re-alignment of the kyphotic spine as Group B. Two (4.7%) of the 43 patients in Group A and 14 (30.4%) of the 46 patients in Group B had intraoperative ST (chi2 = 10.020, P = 0.002). Significant differences were identified between the two groups in the height change of the osteotomized column. SRS-22 scores improved significantly in both groups. Seven patients experienced neurologic complications (1 in Group A and 6 in Group B). Eight patients had cerebrospinal fluid leakage (2 in Group A and 6 in Group B). CONCLUSION: PSO with a cage significantly avoided ST during the osteotomy procedure and might represent a new, safe, and feasible choice for treating patients with AS kyphosis. PMID- 29336370 TI - Differences of Matrix Metalloproteinase 2 Expression between Left and Right Ventricles in Response to Nandrolone Decanoate and/or Swimming Training in Mice. AB - BACKGROUND: Matrix metalloproteinase (MMP)-2 plays an important role in the remodeling of left ventricles (LVs) and right ventricles (RVs). We investigated the differences of MMP-2 expression between LV and RV in response to nandrolone decanoate (ND), swimming training (ST), and combined ND and ST (NS) in mice, based on their structural, functional, and biochemical characteristics. METHODS: Totally 28 male C57B1 mice (6 weeks old; 20-23 g) were divided into four groups, including the control (n = 7), ND (n = 6), ST (n = 8), and NS (n = 7) groups. After respective treatments for 8 weeks, echocardiographic examination was used to assess the cardiac structure and function. Van Gieson stain was used to examine the fibrosis of LV and RV in response to different treatments, and Western blotting analysis was performed to explore different MMP-2 expressions between LV and RV in response to ND and/or ST. Analysis of variance was used for comparing the four groups. RESULTS: At 8 weeks, right ventricular dimension/body weight in the ND group was larger than the other three groups (F = 7.12, P < 0.05) according to the echocardiographic examination. Fibrosis induced by ND administration was increased more in RV (2.59%) than that in LV (2.21%). MMP-2 expression of the ND group in RV was significantly greater than the control and NS groups in RV and the corresponding ND group in LV. CONCLUSION: The experimental data support the hypothesis that ND administration induces greater MMP-2 expression increase in RV compared to LV, leading to consequent RV dilation. PMID- 29336371 TI - In vitro Flow Perfusion Maintaining Long-term Viability of the Rat Groin Fat Flap: A Novel Model for Research on Large-scale Engineered Tissues. AB - BACKGROUND: Large-scale muscle tissue engineering remains a major challenge. An axial vascular pedicle and perfusion bioreactor are necessary for the development and maintenance of large-scale engineered muscle to ensure circulation within the construct. We aimed to develop a novel experimental model of a large-scale engineered muscle flap from an existing rat groin fat flap. METHODS: A fat flap based on the superficial inferior epigastric vascular pedicle was excised from rats and placed into a perfusion bioreactor. The flaps were kept in the bioreactor for up to 7 weeks, and transdifferentiation of adipose to muscle tissue could have taken place. This system enabled myogenic-differentiation medium flow through the bioreactor at constant pH and oxygen concentration. Assessment of viability was performed by an immunofluorescence assay, histological staining, a calcein-based live/dead test, and through determination of RNA quantity and quality after 1, 3, 5, and 7 weeks. RESULTS: Immunofluorescence staining showed that smooth muscle around vessels was still intact without signs of necrosis or atrophy. The visual assessment of viability by the calcein-based live/dead test revealed viability of the rat adipose tissue preserved in the bioreactor system with permanent perfusion. RNA samples from different experimental conditions were quantified by spectrophotometry, and intact bands of 18S and 28S rRNA were detected by gel electrophoresis, indicating that degradation of RNA was minimal. CONCLUSIONS: Flow perfusion maintains the long-term viability of a rat groin engineered muscle flap in vitro, and a large scale vascularized muscle could be engineered in a perfusion bioreactor. PMID- 29336372 TI - Effects of Matricaria chamomilla Extract on Growth and Maturation of Isolated Mouse Ovarian Follicles in a Three-dimensional Culture System. AB - BACKGROUND: The aim of this study was to design and assess the effects of hydroalcoholic extract of Matricaria chamomilla (MC) on preantral follicle culture of mouse ovaries in a three-dimensional culture system. METHODS: Isolated preantral follicles were randomly divided into three main groups: the control group containing 10% fetal bovine serum without MC extract (G1), the first experimental group supplemented with 25 MUg/ml hydroalcoholic extract of chamomile (G2), and the second experimental group supplemented with 50 MUg/ml hydroalcoholic extract of chamomile (G3). RESULTS: After 12 days of culture, the survival rate (P < 0.05), antrum formation (P < 0.01), metaphase two oocytes (P < 0.01), and the expression of PCNA (P < 0.05) and FSHR (P < 0.05) genes significantly decreased in G3 as compared with G1. On the other hand, at the last day of culture (day 12), the mean diameter of follicles cultured in the medium which was supplemented with 50 MUg/ml hydroalcoholic extract of chamomile significantly decreased as compared with the G1 (P < 0.05). In addition, the levels of progesterone and dehydroepiandrosterone hormones significantly increased in the medium of G3 relative to G1 (P < 0.01), while in the medium of G1, the level of 17beta-estradiol was significantly higher than that of other groups (P < 0.01). Reactive oxygen species levels of metaphase II oocytes were significantly decreased in G2 as compared with G1 (P < 0.01). CONCLUSION: Adding chamomile extract to culture media appeared to decrease follicular function and development. PMID- 29336373 TI - Advances of Long Noncoding RNAs-mediated Regulation in Reproduction. AB - OBJECTIVE: Advances in genomics and molecular biology have led to the discovery of a large group of uncharacterized long noncoding RNAs (lncRNAs). Emerging evidence indicated that many lncRNAs function in multiple biological processes and its dysregulation often causes diseases. Recent studies suggested that almost all regulatory lncRNAs interact with biological macromolecules such as DNA, RNA, and protein. LncRNAs regulate gene expression mainly on three levels, including epigenetic modification, transcription, and posttranscription, through DNA methylation, histone modification, and chromatin remodeling. LncRNAs can also affect the development of diseases and therefore be used to diagnose and treat diseases. With new sequencing and microarray techniques, hundreds of lncRNAs involved in reproductive disorders have been identified, but their functions in these disorders are undefined. DATA SOURCES: This review was based on articles published in PubMed databases up to July 10, 2017, with the following keywords: "long noncoding RNAs", "LncRNA", "placentation", and "reproductive diseases". STUDY SELECTION: Original articles and reviews on the topics were selected. RESULTS: LncRNAs widely participate in various physiological and pathological processes as a new class of important regulatory factors. In spermatogenesis, spermatocytes divide and differentiate into mature spermatozoa. The whole process is elaborately regulated by the expression of phase-specific genes that involve many strains of lncRNAs. Literature showed that lncRNA in reproductive cumulus cells may contribute to the regulation of oocyte maturation, fertilization, and embryo development. CONCLUSIONS: LncRNA has been found to play a role in the development of reproduction. Meanwhile, we reviewed the studies on how lncRNAs participate in reproductive disorders, which provides a basis for the study of lncRNA in reproduction regulation. PMID- 29336375 TI - Spontaneous Rupture and Thrombosis of Right Atrium. PMID- 29336374 TI - Radiotherapy for Gastrointestinal Stromal Tumors. AB - OBJECTIVE: Gastrointestinal stromal tumors (GISTs) are rare mesenchymal tumors of the gastrointestinal tract, which frequently cause intraabdominal metastases. The current standard of care is surgery for localized cases, and adjuvant imatinib is recommended for tumors with a high risk of recurrence. To date, radiotherapy has not been commonly accepted as a part of multimodality treatment approach other than palliation. However, recently published case reports and some small series suggest that radiotherapy is a valuable option for controlling locally progressive, drug-resistant disease. The aim of this review is to provide a viewpoint from a radiation oncologist concerning the management of GISTs, especially rectal GIST, and clarify the role and technical aspects of radiotherapy in the treatment approach. DATA SOURCES: A comprehensive search in PubMed using the keywords "radiotherapy for rectal GIST" and "rectal GIST" was undertaken. The literature search included the related articles after 1995. STUDY SELECTION: The main articles including rectal GIST case reports and GIST series containing rectal cases were the primary references. RESULTS: Surgery is the mainstay of treatment. However, to date, radiotherapy is included in the multidisciplinary treatment strategy of rectal GISTs in some circumstances with palliative, adjuvant, or definitive intent using different treatment doses and fields. CONCLUSIONS: Recently reported long-term local control rates indicate that GIST is a radiosensitive disease. This makes radiotherapy a valuable alternative in GIST management with curative intent, especially in patients who (1) cannot tolerate or are resistant to chemotherapy agents, (2) have an unresectable disease, (3) have a gross or microscopic residual disease after surgery, and (4) have a recurrent disease. PMID- 29336376 TI - Papillary Glioneuronal Tumor with an Excessive Angiomatous Component in an Elderly Man. PMID- 29336377 TI - Pulmonary Capillary Hemangiomatosis without Pulmonary Hypertension: An Early Stage of Disease? PMID- 29336378 TI - Reliability and Accuracy of Sepsis-related Organ Failure Assessment Scoring among Emergency Physicians. PMID- 29336379 TI - Recurrent Viral Infections Complicated with Cold Agglutinin Disease after Splenectomy for Thrombocytopenia. PMID- 29336380 TI - Iron Overload and Hepatitis C Virus Infection. PMID- 29336381 TI - Reply to "Iron Overload and Hepatitis C Virus Infection". PMID- 29336382 TI - Atrioventricular septal defects. PMID- 29336383 TI - Perioperative renal protection during cardiac surgery: A choice between dopamine and dexmedetomidine. PMID- 29336384 TI - Noninvasive ventilation using bipap: Expanding indications to post cardiac surgery care. PMID- 29336385 TI - Prophylaxis of postoperative nausea and vomiting after cardiac surgery in high risk patients: A randomized controlled study. AB - CONTEXT: The role of prophylaxis for postoperative nausea and vomiting (PONV) in cardiac surgery is under debate. AIMS: To study the risk factors for PONV after cardiac surgery and the role of betamethasone with or without droperidol for its prevention. SETTING AND DESIGN: Randomized open-label controlled study comparing standard care with PONV prophylaxis from February to November 2016. METHODS: Five hundred and two patients with planned nonemergent cardiac surgery were included. INTERVENTIONS: In the intervention arm, PONV prophylaxis (4 mg betamethasone with/without 0.625 mg droperidol) was administered in high-risk patients (two or more risk factors). Patients in the control arm were treated as per routine hospital practices. RESULTS: Female sex, past history of PONV, and migraines were associated with a significantly increased risk of PONV, while motion sickness, smoking status, and volatile anesthetics were not. Pain and treatment with nefopam or ketoprofen were associated with an increased risk of PONV. PONV was less frequent in the active arm compared to controls (45.5% vs. 54.0%, P = 0.063; visual analogic scale 10.9 vs. 15.3 mm, P = 0.043). Among the 180 patients (35.6%) with >=2 risk factors, prophylaxis was associated with reduced PONV (intention-to-treat: 46.8% vs. 67.8%, P = 0.0061; per-protocol: 39.2% vs. 69%, P = 0.0002). In multivariate analysis, prophylaxis was independently associated with PONV (odds ratio [OR]: 0.324, 95% confidence interval: 0.167-0.629, P = 0.0009), as were female sex, past history of PONV, and migraines (OR: 3.027, 3.031, and 2.160 respectively). No drug-related side effects were reported. CONCLUSION: Betamethasone with/without droperidol was effective in decreasing PONV in high risk cardiac surgical patients without any side effect. PMID- 29336386 TI - Retrospective study of complete atrioventricular canal defects: Anesthetic and perioperative challenges. AB - OBJECTIVE: The objective of this study was to highlight anesthetic and perioperative management and the outcomes of infants with complete atrioventricular (AV) canal defects. DESIGN: This retrospective descriptive study included children who underwent staged and primary biventricular repair for complete AV canal defects from 1999 to 2013. SETTING: A single-center study at a university affiliated heart center. PARTICIPANTS: One hundred and fifty-seven patients with a mean age at surgery of 125 +/- 56.9 days were included in the study. About 63.6% of them were diagnosed as Down syndrome. Mean body weight at surgery was 5.6 +/- 6.3 kg. METHODS: Primary and staged biventricular repair of complete AV canal defects. MEASUREMENTS AND MAIN RESULTS: A predefined protocol including timing of surgery, management of induction and maintenance of anesthesia, cardiopulmonary bypass, and perioperative intensive care treatment was used throughout the study. Demographic data as well as intraoperative and perioperative Intensive Care Unit (ICU) data, such as length of stay in ICU, total duration of ventilation including reintubations, and total length of stay in hospital and in hospital mortality, were collected from the clinical information system. Pulmonary hypertension was noted in 60% of patients from which 30% needed nitric oxide therapy. Nearly 2.5% of patients needed permanent pacemaker implantation. Thorax was closed secondarily in 7% of patients. In 3.8% of patients, reoperations due to residual defects were undertaken. Duration of hospital stay was 14.5 +/- 4.7 days. The in-hospital mortality was 0%. CONCLUSION: Protocolized perioperative management leads to excellent outcome in AV canal defect repair surgery. PMID- 29336387 TI - Dexmedetomidine for prevention of skeletal muscle ischaemia-reperfusion injury in patients with chronic limb ischaemia undergoing aortobifemoral bypass surgery: A prospective double-blind randomized controlled study. AB - BACKGROUND: Dexmedetomidine is a selective alpha-2 agonist used for sedation. It has also been shown to have myocardial protective effect and prevent ischemia reperfusion injury in off-pump coronary artery bypass patients. The aim of our study was to assess the effect of dexmedetomidine for prevention of skeletal muscle ischemia-reperfusion injury in patients undergoing aortobifemoral bypass surgery. METHODOLOGY: Sixty adult patients (Group dexmedetomidine n = 30, Group normal saline n = 30) undergoing aortobifemoral bypass surgery were recruited over 3 months. Randomization was done using a computer-generated random table. The attending anesthesiologist would be blinded to whether the drug/normal saline was being administered. He would consider each unlabeled syringe as containing dexmedetomidine and calculate the volume to be infused via a syringe pump accordingly. Dexmedetomidine infusion (1 mcg/kg) over 15 minutes was given as a loading dose, followed by maintenance infusion of 0.5 mcg/kg/h till 2 h postprocedure in Group dexmedetomidine (D) while the same volume of normal saline was given in the control Group C till 2 h postprocedure. Creatine phosphokinase (CPK) values were noted at baseline (T0), 6 h (T1), 12 h (T2), and 24 h (T3) after the procedure. Hemodynamic variables (heart rate [HR] and mean blood pressure [MAP]) were recorded at T0, T1, T2, and T3. Results were analyzed using unpaired Student's t-test, P < 0.05 was considered statistically significant. RESULTS: MAP and HR significantly decreased in Group D as compared to control group (P < 0.05). However, the decrease was never <20% of the baseline. The CPK values at 6, 12, and 24 h were statistically significant between the two groups. CONCLUSION: Dexmedetomidine prevents skeletal muscle ischemia-reperfusion injury in patients undergoing aortobifemoral bypass surgery. PMID- 29336388 TI - Assessment the effect of dexmedetomidine on incidence of paradoxical hypertension after surgical repair of aortic coarctation in pediatric patients. AB - OBJECTIVE: The aim of the study was to assess the effect of dexmedetomidine on the incidence of paradoxical hypertension in patients undergoing aortic coarctation repair. DESIGN: Randomized observational study. SETTING: University hospital and cardiac center. PATIENTS: The study included 108 pediatric patients with isolated aortic coarctation. METHODS: The patients were classified into two groups (each = 54): Group D: the patients received dexmedetomidine as a loading dose of 0.5 MUg/kg over 10 min followed by infusion 0.3 MUg/kg/h during surgery and continued for the first 48 postoperative hours. Group C: The patients received an equal amount of normal saline. The medication was prepared by the nursing staff and given to anesthetist blindly. The collected data included the heart rate, systolic and diastolic arterial blood pressure, incidence, onset, severity and treatment of paradoxical hypertension, fentanyl dose and end-tidal sevoflurane concentration, amount of blood loss and urine output. MAIN RESULTS: The heart rate, systolic and diastolic blood pressure decreased significantly with dexmedetomidine than Group C (P < 0.05). The incidence and severity of the paradoxical hypertension was lower with dexmedetomidine than Group C (P = 0.011, P = 0.017, respectively). The onset the paradoxical hypertension was earlier in Group C than dexmedetomidine (P = 0.026). The dose of fentanyl and sevoflurane concentration decreased significantly with dexmedetomidine (P = 0.034, P = 0.026, respectively). The blood loss decreased with dexmedetomidine (P = 0.020) and the urine output increased with dexmedetomidine (P = 0.024). The incidence of hypotension and bradycardia was more with dexmedetomidine (P < 0.05). CONCLUSION: Dexmedetomidine is safe in pediatric patients undergoing aortic coarctation repair. It minimized the incidence and severity of paradoxical hypertension. It decreased the required antihypertensive medications. PMID- 29336390 TI - Long-term quality of life postacute kidney injury in cardiac surgery patients. AB - BACKGROUND: Acute renal failure after cardiac surgery is known to be associated with significant short-term morbidity and mortality. There have as yet been no major reports on long-term quality of life (QOL). This study assessed the impact of acute kidney injury (AKI) and renal replacement therapy (RRT) on long-term survival and QOL after cardiac surgery. The need for long-term RRT is also assessed. MATERIALS AND METHODS: Patients who underwent cardiac surgery between 2005 and 2011 (n = 6087) and developed AKI (RIFLE criteria, n = 570) were included. They were propensity-matched 1:1 to patients without renal impairment (control). Data were prospectively collected, and health-related QOL questionnaire was sent to patients who were alive at least 1-year postoperatively at the time of the study. RESULTS: There was no significant difference in the preoperative characteristics between the two groups (age, gender, left ventricular ejection fraction, procedure, urgency, logistic Euroscore), respectively. Median follow-up was 52 months. Survival data were available in all patients. Questionnaires were returned in 64% of eligible patients. Long-term survival was significantly lower, and QOL, in particular the physical aspect, was significantly worse for the AKI group as compared to non-AKI group (38.8 vs. 44.2, P = 0.002), especially so in patients who required RRT. In alive respondents, despite an 18% (66/359) incidence of ongoing renal follow-up, the need for late RRT was only in 1.1% (4/359). CONCLUSION: AKI and especially the need for RRT following cardiac surgery are associated with increased long-term mortality as well as worse quality of life in a propensity-matched control group. PMID- 29336389 TI - A randomized controlled trial comparing the myocardial protective effects of isoflurane with propofol in patients undergoing elective coronary artery bypass surgery on cardiopulmonary bypass, assessed by changes in N-terminal brain natriuretic peptide. AB - OBJECTIVE: The objective of the study is to compare the myocardial protective effects of isoflurane with propofol in patients undergoing elective coronary artery bypass surgery on cardiopulmonary bypass (CPB), the cardio protection been assessed by changes in N-terminal brain natriuretic peptide (NT proBNP). Methodology and Design: This study is designed as a participant blinded, prospective randomized clinical trial. SETTING: Christian Medical College Hospital, Vellore, India. PARTICIPANTS: Patients undergoing elective coronary artery bypass surgery on CPB. INTERVENTION: Anesthesia was maintained with 0.8 1.2 end tidal concentrations of isoflurane in the isoflurane group and in the propofol group, anesthesia was maintained with propofol infusion as described by Roberts et al. MEASUREMENTS: Hemodynamic data were recorded at frequent intervals during the surgery and up to 24 h in the Intensive Care Unit (ICU). The other variables that were measured include duration of mechanical ventilation, dose and duration of inotropes in ICU, (inotrope score), duration of ICU stay, NT proBNP levels before induction and 24 h postoperatively, creatine kinase-MB levels in the immediate postoperative, first and second day. RESULTS: Mean heart rate was significantly higher in propofol group during sternotomy, (P = 0.021). Propofol group had a significantly more number of patients requiring nitroglycerine in the prebypass period (P = 0.01). The increase in NT proBNP from preoperative to postoperative value was lesser in the isoflurane group compared to propofol even though the difference was not statistically significant. The requirement of phenylephrine to maintain mean arterial pressure within 20% of baseline, mechanical ventilation duration, inotrope use, duration of ICU stay and hospital stay were found to be similar in both groups. CONCLUSION: Propofol exhibit comparable myocardial protective effect like that of isoflurane in patients undergoing coronary artery bypass graft surgery. Considering the unproven mortality benefit of isoflurane and the improved awareness of green OT concept, propofol may be the ideal alternative to volatile anesthetics, at least in patients with good left ventricular function. PMID- 29336391 TI - Design and standardization of tools for assessing the perceived heart risk and heart health literacy in Iran. AB - OBJECTIVES: The aim is to achieve the standard tools for heart health, the present study aimed to design, develop, and standardize the two questionnaires of perceived heart risk scale (PHRS) and heart health literacy scale (HHLS). METHODS: The present study was a methodological research conducted on the residents of Kermanshah Province, Iran, using the multi-stage cluster sampling. Further, considering the scientific methods in the psychometric field, the design of the research questionnaires was conducted. In addition, the viewpoints of experts in different domains were qualitatively and quantitatively included to assess the validity of the questionnaires. To assess the reliability of the questionnaires, a sample including 31 subjects was first selected and studied within a fortnight's interval. Then, the reliability and validity of the scales were assessed using factor analysis and Cronbach's alpha in a sample of 771 subjects. RESULTS: After reviewing the viewpoints of experts, the items were adjusted and implemented in the first sample at two stages. The results were indicative of the stability and acceptability of the Cronbach's alpha. In addition, the validity and reliability of the questionnaires were confirmed in the second sample too. CONCLUSION: According to the results of the present study, it can be concluded that the two questionnaires of PHRS and HHLS had acceptable reliability and validity. PMID- 29336392 TI - Transesophageal echocardiography evaluation of the aortic arch branches. AB - Visualization of aortic arch branches by transesophageal echocardiography has been technically challenging. Visualizing these vessels helps in identifying the extent of dissection of the aorta, assessing the severity of carotid artery stenosis, presence of atheromatous plaques, patency of the left internal mammary artery graft, confirmation of subclavian artery cannulation, confirming holodiastolic flow reversal in the left subclavian artery by spectral Doppler imaging in case of severe aortic regurgitation, and confirming the optimal position of the intraaortic balloon perioperatively. The information obtained is helpful for diagnosis, monitoring, and decision-making during aortic surgery. PMID- 29336394 TI - Commentary: Similar philosophy does not always synchronize. PMID- 29336393 TI - Cardiac surgery in a patient with implanted vagal nerve stimulator. AB - The prevalence of epilepsy worldwide is around 0.5%-2% of the population. Antiepileptic medications are the first line of treatment in most of the cases but approximately 25%-30% epilepsy patients are refractory to the single or combination therapy. The surgical option for temporal lobe epilepsy is temporal lobectomy, which has its inherent risk of neurological deficits after the surgery. Patients who are either refractory to combination therapy or do not want surgical temporal lobectomy are the candidates for electrical stimulation therapy. Refractory cases require implantable device such as vagal nerve stimulator (VNS). We are reporting perioperative management of a patient, with an implanted VNS, posted for pericardiectomy. It is important for the anesthesiologist to be familiar with the mechanism of VNS for proper perioperative care. PMID- 29336395 TI - Tricuspid valve straddling: An uncommon cause of left ventricular outflow tract obstruction in transposition of great artery with ventricular septal defect. AB - Transposition of great arteries (TGA) can be associated with left ventricle outflow tract (LVOT) obstruction. In the presence of ventricular septal defect (VSD), septal leaflet of tricuspid valve may prolapse through perimembranous VSD or rarely tricuspid valve tissue may override to produce LVOT obstruction. Occasionally, this may be mistaken for vegetation due to associated pulmonary valve endocarditis. We report a case of d-TGA with presumptive pulmonary valve endocarditis and LVOT obstruction that was found to be due to tricuspid valve straddling on transesophageal echocardiography, resulting in change in the surgical plan and thus avoiding catastrophe. PMID- 29336396 TI - Right atrial fibroma in an adult patient. AB - Left atrial fibroma as a benign tumor is an exceedingly rare left atrial mass. It has various clinical signs and symptoms and sometimes leads to serious complications such as lethal arrhythmia and death. We report a case of right atrial fibroma in a 40-year-old male who presented with dyspnea and atrial fibrillation. Transthoracic echocardiography revealed a large sessile mass attached to interatrial septum near the coronary sinus valve in the right atrium. The patient underwent surgical resection of tumor through the right atrium. The postoperative course was unremarkable. Histopathological examination showed that it was a fibroma. The 6-month follow-up revealed that the patient was in well condition with no evidence of tumor recurrence. PMID- 29336397 TI - Large inferolateral left ventricular aneurysm. AB - The majority of cardiac left ventricular aneurysms involve the anterior and/or apical wall. We present a case of a 50-year-old man with heart failure caused by a large inferolateral left ventricular aneurysm and associated mitral regurgitation, managed by aneurysmectomy, mitral valvuloplasty, and surgical revascularization. PMID- 29336398 TI - Concomitant neurogenic and vascular thoracic outlet syndrome due to multiple exostoses. AB - We report a rare case of multiple hereditary exostosis where patient presented with bilateral base of neck exostoses with concurrent compression of brachial plexus and subclavian artery and vein. The patient was a young 26-year-old woman with chief complaints of pain in the left upper extremity, paresthesia in the left ring and little finger, and weakness in hand movement and grip. On referral, history, physical examination, radiological imaging, and electrodiagnostic tests evaluated the patient. Due to severe pain and disability in performing routine activities, surgical intervention was necessary. In the current case, the patient had thoracic outlet syndrome with concomitant venous, arterial, and neurogenic sub types. Radial pulse returned and pain associated with brachial plexus compression was resolved after the surgery. PMID- 29336399 TI - Commentary: Comments on thoracic outlet syndrome. PMID- 29336400 TI - Successful resolution with apixaban of a massive left atrial appendage thrombus due to nonrheumatic atrial fibrillation: A case report and review. AB - A 32-year-old woman with a past medical history of paroxysmal atrial fibrillation, long QT syndrome, and implantation of an automatic iimplantable cardioverter-defibrillator (AICD) following cardiac arrest presented with disabling symptoms of paroxysmal atrial fibrillation due to recurrent AICD shocks. Before curative ablation, transesophageal echocardiography was performed to assess for existing thrombi. This is a rare case of successful resolution with apixaban of a massive left atrial appendage thrombus due to non-rheumatic atrial fibrillation that was successfully treated with apixaban. PMID- 29336401 TI - Bleeding in the lung complicates a routine intracardiac repair: What went wrong!!! AB - Cyanotic congenital heart disease presents an increased tendency to bleed in view of subtle coagulation defects. Airway bleeding can be particularly difficult to manage while maintaining an adequate ventilation. An isolated lung bleed with the exclusion of possible traumatic, medical and surgical causes of bleeding, should alert the attending anesthesiologist to the possibility of the collateral-related bleeding. Preoperative coil embolization remains an important initial management step in a case of tetralogy of Fallot (TOF) with major aortopulmonary collaterals. Nevertheless, the coiling of the collaterals in certain specific case scenarios is not feasible, rendering the management of a lung bleed, all the more challenging. We, hereby discuss a case of a 7-year-old girl with a massive endotracheal bleed at the time of weaning from cardiopulmonary bypass after corrective surgery for TOF. The subsequent approach and management are discussed. The optimal management of tetralogy with collaterals mandates an effective communication among the cardiologist, radiologist, anesthesiologist, and the surgeon. PMID- 29336402 TI - Mechanical discordance between left atrium and left atrial appendage. AB - During standard transesophageal echocardiographic examinations in sinus rhythm (SR) patients, the left atrial appendage (LAA) is not routinely assessed with Doppler. Despite having a SR, it is still possible to have irregular activity in the LAA. This situation is even more important for SR patients where assessment of the left atrium is often foregone. We describe a case where we encountered this situation and briefly review how to assess the left atrium and its appendage in such a case scenario. PMID- 29336403 TI - Superior vena cava clamping during thoracic surgery: Implications for the anesthesiologist. AB - Resection and reconstruction of the SVC is a challenging Intraoperative situation owing to the potential complications after clamping a patent vessel. Hemodynamic imbalance and neurological effects of SVC clamping can be life threatening. These complications can be prevented by careful intraoperative monitoring and management. Anaesthesiologist must be aware of different options to manage such challenging situations. PMID- 29336404 TI - Role of transesophageal echocardiography during left atrial appendage occlusion device closure in a patient with non-valvular atrial fibrillation and angiodysplasia of the colon. AB - Atrial fibrillation is the most common arrhythmia associated with significant mortality and morbidity secondary to thrombo-embolism. To prevent this thrombo embolism oral anticoagulation therapy is the recommended treatment. In patients with contraindications to oral anticoagulation therapy, percutaneous left atrial appendage occlusion device is indicated. TEE is essential to guide in all the stages of LAA device deployment. Right from pre-procedure screening, to guiding during deployment, to rule out any complications and post-procedure surveillance and monitoring long term outcomes. PMID- 29336405 TI - Looking inside the third generation left ventricular assist device using color doppler transesophageal echocardiography. AB - HeartWare is a third-generation continuous flow left ventricular assist device (LVAD) and generates centrifugal pattern of blood flow. In the perioperative setting, interrogating the HeartWare devices is very difficult due to the interference of the Doppler by the impeller frequency and generation of the waterfall artifact. We present a case where using color Doppler a view "inside" the impeller can be seen which corresponds to the centrifugal flow of blood. With time, these images can be looked into in pathological states such as pump thrombosis, to come to a more meaningful conclusion regarding the flow of blood within the centrifugal chamber. Newer technologies are constantly evolving to give us more meaningful insights into the flow of blood within the heart chambers. We believe similar technologies can be applied to see the flow of blood inside the LVAD devices. PMID- 29336406 TI - Quadricuspid aortic valve: A rare intraoperative diagnosis by transesophageal echocardiography. AB - Quadricuspid aortic valve (QAV) is a rare congenital anomaly frequently associated with other anomalies particularly coronary anomalies. It may be detected on transthoracic or transesophageal echocardiography. We present here a case report of a 27-year-old male patient with a QAV, the valve being regurgitant and requiring aortic valve replacement. It has been reported as isolated case reports in the literature and various theories exist to the development of QAV. The diagnosis requires a high degree of suspicion and a detailed assessment, and if asymptomatic, then patients need to be carefully followed up for the development of aortic regurgitation. PMID- 29336407 TI - Unknown left atrial appendage mass! real-time three-dimensional transesophageal echocardiography helps in identification. AB - Left Atrial Appendage (LAA) is the most contractile part of Left atrium. It is also the most frequent place for thrombus formation that may lead to disastrous consequences. Complete trasoesophageal echocardiography examination always includes assessing LAA but sometimes unusually placed pectinate muscle, which is a normal structure may give baffling shadow that can only be interpreted correctly by Real time 3D echocardiography. PMID- 29336408 TI - Pneumopericardium after minimally invasive atrial septal defect closure. AB - Minimally invasive atrial septal defect (ASD) closure is a commonly performed cardiac surgical procedure and has good outcome. We report an interesting chest X ray showing pneumopericardium in a patient who underwent ASD closure using a minimally invasive approach. PMID- 29336409 TI - Large thymus tumor with invasion into superior vena cava: Transesophageal echocardiography proved to be helpful during surgery. PMID- 29336410 TI - Spontaneous coronary artery dissection in anabolic steroid misuse. PMID- 29336411 TI - Unsolved enigma of atrial myxoma with biventricular dysfunction. PMID- 29336412 TI - In response to: Unsolved enigma of atrial myxoma with biventricular dysfunction. AB - Thanks to Raut et al.[1] for appreciating our efforts in managing the case of biatrial myxomas. A brief discussion is warranted here on the types, size of cardiac myxomas, interleukin 6 (IL-6) levels, left ventricle (LV) dysfunction, and their relation. IL-6 is a pleiotropic cytokine with a variety of biologic activities, including differentiation of B cell, thymocytes, and T cells; activation of macrophages; and stimulation of hepatocyte to produce acute-phase proteins such as C-reactive protein.[2],[3] It is also said to have paracrine, endocrine, and autocrine growth functions.[3]. PMID- 29336413 TI - Erratum: Comparison of the renoprotective effect of dexmedetomidine and dopamine in high-risk renal patients undergoing cardiac surgery: A double-blind randomized study. AB - [This corrects the article DOI: 10.4103/aca.ACA_57_17.]. PMID- 29336414 TI - Reflections about the Impact of Infertility on Female Sexual Function. PMID- 29336415 TI - Retrospective Study to Determine Stability of Mandibular Setback Surgery using Bilateral Sagittal Split Osteotomy Technique. AB - Background Bilateral sagittal split osteototomy of mandible is one of the most commonly performed orthognathic surgical procedure performed in the mandible. According to hierarchy of stability, mandibular setback procedure is considered to be relatively unstable procedure and chances of relapse are higher. Objective We conducted this study to determine the skeletal stability of mandibular setback procedure using bilateral sagittal split osteotomy technique in Nepalese population. Method Lateral cephalograms of 14 patients who underwent mandibular setback using bilateral saggital split osteotomy were taken pre-operatively (P1), immediate postoperatively (P2) and eight months to one year post-operatively (P3). Cephalometric tracing was done for all the cephalograms. Various parameters of Burstone's hard and soft tissue, Steiner's and McNamara analysis were used in the study to determine angular and linear changes following surgery. After tracing the cephalograms, changes between P1- P2, P1-P3 and P2-P3 were calculated. Mean difference in changes between P1-P2, P1-P3 and P2-P3 were compared using paired t test. P value less than 0.05 was considered to be significant. Data analysis was done using SPSS software version 20. Result Mean setback at Pogonion was 3.03 mm whereas at point B were 4.64 mm. Relapse at Pogonion was 0.03 mm and relapse at point B were 0.02 mm. Mean change in point A Nasion-point B angle was 5.1 degrees whereas mean changes in NA-Pogonion angle were 4.69 degrees. Conclusion There were significant changes in angular as well as horizontal parameters at P2 but there were no significant changes in those parameters at P3. This is a preliminary study that we have carried out at our institution with smaller sample size thus we recommend a study with larger sample size and long term follow up. PMID- 29336416 TI - Work Related Musculoskeletal Morbidity among Tailors: A Cross Sectional Study in a Slum of Kolkata. AB - Background Musculoskeletal disorders comprise the single largest group of work related illnesses in developing countries. Sedentary working style with wrong posture for long time is considered to be an important risk factor, which is largely modifiable. Objective This study was performed to determine the prevalence and find out the factors associated with Musculoskeletal disorders among the workers involved in tailoring occupation. Method A descriptive community based cross-sectional study was conducted in the urban slums of Chetla, Kolkata on March and April, 2015. One hundred and ten (110) out of 383 resident tailors in the area were chosen by simple random sampling and interviewed by approaching them in their work place. Descriptive statistics and multivariable logistic regression were used Result Using Nordic Musculoskeletal questionnaire, Musculoskeletal disorders was found among 65.45% of tailors. The most commonly affected site was neck (41.8%) followed by lower and upper back. In bivariate analysis, musculo-skeletal disorders was found to be significantly associated with age more than 45 years [OR (95% CI)= 3.35 (1.30- 8.60)], working for > 10 years [OR (95% CI)= 7.01 (2.93-16.79)*], working > 8 hours per day [OR (95% CI)= 2.75 (1.20-6.20)], full time job [OR (95% CI)= 2.41 (1.08-5.39)] and unfavourable workstation ergonomic [OR (95% CI)= 2.40 (1.10-5.40)], whereas in multivariate analysis age, sex, duration in the profession [AOR (95%CI= 4.40 (1.40- 14.30)], working hours per day [AOR (95%CI= 7.20 (1.80-27.80)], and unfavourable workstation ergonomic [AOR (95%CI)= 3.50 (1.26-9.80)] remained significant. Conclusion A multidimensional approach including appropriate technique in terms of operators' posture and ergonomically sound workstation are required to avoid the debilitating effect of Musculoskeletal disorders among the workers. PMID- 29336417 TI - Compliance and its Determinants Regarding Iron and Folic Acid Supplementation during Pregnancy in Kathmandu, Nepal. AB - Background Iron deficiency anemia is one of the major public health problems mostly affecting pregnant women of developing countries like Nepal. Kathmandu, the capital city of Nepal, has considerably high prevalence of anemia, which is attributed to inadequate dietary iron and problems of compliance to iron and folic acid supplementation. Objective This descriptive study aimed to identify the levels of and determinants associated with compliance regarding Iron and folic acid supplementation among pregnant women in Kathmandu, Nepal. Method The study was conducted in Paropakar Maternity and Women's Hospital in Kathmandu. Systematic random sampling was done to select a total of 406 samples that were either handed questionnaire for self-administration or interviewed. The chi2 test and multiple linear regressions were used for statistical analysis. Result The findings showed 73.2% of the respondents had high compliance, 12.8% moderate compliance, and 14% low compliance to iron and folic acid supplementation. More than half of the respondents had insufficient knowledge regarding anemia, iron deficiency and iron and folic acid supplementation. Multiple linear regression revealed that perceived severity, perceived barriers and social support were determinants of compliance to iron and folic acid supplementation (p<0.05). Conclusion This study infers that there is a lack of knowledge and awareness regarding anemia, iron deficiency, and iron and folic acid supplementation among pregnant women, and improvement in social support and perception of severity of the disease, and minimization of associated barriers may lead to better outcome in terms of compliance to iron and folic acid supplementation among pregnant women. PMID- 29336418 TI - Dysmenorrhea and Stress among the Nepalese Medical Students. AB - Background Dysmenorrhea is the most common gynecological disorder in women of reproductive age with implications as reduced quality of life and school absenteeism. Mental stress is possibly the most important known predisposing factor for primary dysmenorrhea. Objective This study aims to assess the relationship between stress and dysmenorrhea amongst the Nepalese medical students. Method This is cross-sectional descriptive study, conducted from 1st Dec. 2012 to 31st Jan. 2013. The study was conducted in Kathmandu University School of Medical Sciences. A total of 184 participants consented for this study and each one was given a questionnaire to complete. This study included only unmarried nulliparous, healthy (all through first to final years) female medical students, in age group of 16 to 24 years. Result The mean age of the participants was 19.43(+/-3.9) years. Among them, 67% of the participants experienced dysmenorrhea. Of them, 85% experienced increase in frequency and severity of dysmenorrhea after joining medical college. Similarly, 65% of participants considered medical education to be stressful. Of participants experiencing dysmenorrhea, 29.45% missed classes and 17.39% participants had positive family history of dysmenorrhea in first and second degree relatives. Conclusion The present study indicated a positive relationship between psychological stress and dysmenorrhea. Dysmenorrhea is the leading cause of recurrent short-term school absence in young ladies; this issue certainly needs to be addressed. PMID- 29336419 TI - Variable Presentations of Sinonasal Polypoid Masses: A Tertiary Institution Experience. AB - Background Lesions of the sinonasal area are varied, but they mostly present as polypoid masses which require meticulous work-up to reach at the most probable diagnosis. Objective Analysis of polypoid sinonasal masses in terms of etiology, clinical presentations, brief demographic profile, clinico-histologic correlate where possible, and follow-up results. Method In this descriptive, longitudinal study, 198 patients with polypoid sinonasal masses attending the otolaryngology clinic of a tertiary teaching institute were selected using proper selection criteria and analyzed through a pre-set proforma and algorithm for a diagnostic work-up (that included histopathology where necessary). Result Common presentations were nasal obstruction (~89%), discharge (~70%) and hyposmia (~22%). Though nearly 87% was clinically benign and 8% indeterminate, therapeutic and diagnostic interventions (including histopathology) showed 91% truly benign, of which polyposis formed the bulk. Sensitivity of clinical detection was 75% for benign lesions and 62% for malignancies. Diagnosis depended on histopathology in 52.52% cases, including the clinically malignant, the "grey zone", and more than 40% of the clinically benign lesions. There was male predilection (2.16 for benign lesions and 1.57 for malignant), rural preponderance, and above 60% of the patients were within 50-70 years. There was ~26% recurrence in the follow-up period of a minimum of one year, predominantly in polyposis (29.55%) and malignancies (~39%). Conclusion Presentations of polypoid sinonasal masses are variable, etiology of which is mostly benign. Proper clinico-histologic correlate is necessary for correct diagnosis. A low threshold of suspicion is required because of this variability, necessitating follow-up for further evaluation. PMID- 29336420 TI - Perception on Informed Consent Regarding Nursing Care Practices in a Tertiary Care Center. AB - Background Consent for care procedures is mandatory after receipt of adequate information. It maintains patient's rights and autonomy to make thoughtful decisions. Poor communication often leads to poor health quality. Objective To assess hospitalized patients' perception on informed consent regarding nursing care practices in a tertiary care center. Method This is a descriptive cross sectional study among 113 admitted patients conducted in February 2012 at Dhulikhel Hospital, Nepal. Patients of various wards were selected using purposive non-probability sampling with at least 3 days of hospitalization. Close ended structured questionnaire was used to assess patients' perception on three different areas of informed consent (information giving, opportunity to make decision and taking prior consent). Result Among the participants 71.6% perceived positively regarding informed consent towards nursing care practices with a mean score of 3.32 +/- 1.28. Patients' perception on various areas of informed consent viz. information giving, opportunities to make specific decision and taking prior consent were all positive with mean values of 3.43+/-1.12, 2.88+/-1.23, 3.65+/ 1.49 respectively. Comparison of mean perception of informed consent with various variables revealed insignificant correlation (p-value >0.05) for age, educational level and previous hospitalization while it was significant (p-value < 0.05) for communication skills of nurses. Conclusion Majority of patients have positive perception on informed consent towards nursing care practices. Communication skills of nurses affect the perception of patients' regardless of age, education level and past experiences. PMID- 29336421 TI - Reflux Symptom Index and Reflux Finding Score in Diagnosis of Laryngopharyngeal Reflux. AB - Background Although laryngopharyngeal reflux is a common condition encountered in otolaryngological practice, its diagnosis is not very easy because of its indistinct symptoms Objective To assess the efficacy of proton pump inhibitors versus proton pump inhibitors with lifestyle modification in patients with laryngopharyngeal reflux. Method Prospective, analytical study conducted in Department of Otorhinolaryngology and Head and Neck Surgery at Dhulikhel Hospital, Kathmandu University Hospital between January 2015 to January 2016. Eighty two patients with laryngopharyngeal reflux having Reflux symptom index > 13 and Reflux finding score > 7 were included. Patients were divided into 2 groups. Group A comprised of patients treated with proton pump inhibitors alone and Group B with Proton pump inhibitors with lifestyle modification. Pre and post therapeutic reflux finding score and reflux symptom index were compared. Result The mean reflux symptom index score difference before and after treatment in group A was 16.70 and group B was 14.58. Similarly, mean reflux finding score difference before and after treatment in group A was 8.68 and group B was 9.92. Comparison of reflux finding score and reflux symptom index scores before and after treatment revealed improvement in both groups and the difference was statistically significant (p<0.001). However, comparison of pre and post therapeutic and scores between group A and B, showed no statistical significance. Conclusion The extent of symptomatic improvement correlated positively with both proton pump inhibitor therapy alone as well as with proton pump inhibitor therapy along with lifestyle modification. Although addition of lifestyle modification offered incremental benefit for treating laryngopharyngeal reflux, it was not found to be statistically significant. PMID- 29336422 TI - Cold Pressor Test in Borderline Hypertensive University Students. AB - Background Hyperactive sympathetic reaction is an important factor for development of hypertension in young individuals. The stress induced increase in blood pressure recovers within very short period of time and those with exaggerated stress induced cardiovascular response at young age have a high risk of blood pressure elevation in future. Objective To determine the cardiovascular reactivity in response to cold and to correlate its relation with factors such as smoking, family history and physical activity. Method Study was conducted in the Department of Pharmacy, Kathmandu University from July to November, 2015. Resting blood pressure was recorded using sphygmomanometer in sitting position after 5 minutes of rest. Out of 130 volunteers, 34 were found to be prehypertensive and equal number of normotensive were recruited randomly to perform the test. The subjects were directed to immerse his/her right hand up to the wrist in cold water of 10C for 1 minute. The blood pressure was recorded just before the hand was taken out of the water and then 1.5 minutes and 4 minutes after the withdrawal. Data was analyzed by Student's t test using Microsoft Excel 2007. Result Systolic and diastolic blood pressure increased significantly after cold pressor test in both normal (systolic blood pressure from 110+/-6.46 to 119+/ 9.45 mmHg and diastolic blood pressure from 71+/-4.63 to 78+/-6.15 mmHg) and prehypertensive group (systolic blood pressure from 122+/-6.75 to 126+/-8.05 mmHg and diastolic blood pressure from 79+/-6.78 to 85+/-7.76 mmHg). Maximum recovery in both systolic and diastolic blood pressure was observed in 2.5 minutes of removal of hand from cold water. Though sharp drop was observed in blood pressure at the end of 2.5 minute in both groups of individuals, the recovery in case of prehypertensive individual was not sharper. In the present study, significant rise in diastolic blood pressure was observed in prehypertensive smoking males. Also the difference was significant (p<0.02) in recovery of diastolic blood pressure between smoker and non smoker prehypertensive group. Conclusion This study suggests that prolonged elevation in blood pressure in response to stress in young individual can be used as marker of development of hypertension in future. Adopting a healthier lifestyle can help to delay the development of hypertension in later life. PMID- 29336423 TI - Prevalence of Anatomical Variations of the Sinonasal Region and their Relationship with Chronic Rhinosinusitis. AB - Background Precise knowledge of anatomic variations of nose and paranasal sinus complex is essential for achieving best surgical results during endoscopic sinus surgery. Computed tomography is the gold standard investigation for evaluation of paranasal sinuses and adjacent structures. Objective To study prevalence of anatomical variations of nose, paranasal sinuses and osteomeatal complex and to identify a probable association between anatomical variations and chronic rhinosinusitis. Method Prospective, analytical study conducted in 218 patients with Chronic rhinosinusitis in Department of Radiology, Dhulikhel Hospital, Kathmandu University Hospital between January 2015 to January 2016. Volumetric axial CT scan was done in 128 slice CT scanner in 3mm thickness from frontal sinus to floor of maxillary sinus with thin multiplanar reconstruction. Radiological findings were reviewed and obtained data analyzed with SPSS version 16. Pearson chi square test and Pearson correlation coefficient were used for statistical analysis. Result The most common anatomical variation was pneumatized agger nasi cells followed by concha bullosa and deviated nasal septum respectively. Statistical significance were seen between ipsilateral agger nasi cell and frontal sinusitis (p< 0.001), ipsilateral haller cell and concha bullosa with maxillary sinusitis (p<0.001) and onodi cell with sphenoid sinusitis (p<0.001), However, no obvious statistical correlation was noted between deviated nasal septum with ipsilateral maxillary sinusitis. Conclusion Precise knowledge of anatomic variations of the paranasal sinuses is important in chronic rhinosinusitis to prevent possible complications during surgery. Computed tomography is the modality of choice in evaluation of paranasal sinuses and adjacent structures. PMID- 29336425 TI - Multi-Detector Computed Tomography Evaluation of Normal Appendix. AB - Background Appendix is a blind-ended tubular structure arising from caecum, with variable intraluminal contents and position. Acute appendicitis is one of the common indications for emergency radiological investigation. Objective To assess visualization rate, size and position of normal appendix by Computed Tomography (CT). Method This cross-sectional observational study was done in 198 individuals undergoing abdominal CT without suspicion of acute appendicitis and without any pathology localized within right iliac fossa. Axial and coronal reformatted images of nonenhanced and contrast enhanced CT of abdomen were evaluated for visualization of appendix. Visualized appendices arising from caecum were traced and tip localized. Contents within the appendicular lumen were also evaluated and maximum transverse diameter of appendix measured. The relationship between appendicular diameter, intraluminal content and position with different age groups & gender were also derived. Result Visualization rates of appendix were 90% (93% male and 87% female) in nonenhanced CT and 97% (99.8% male and 95.4% female) in enhanced CT. The mean diameter of the appendix was 6.2 +/- 1.16 mm. Most common location of the tip of appendix was pelvic position, followed by retrocaecal position. Most of the appendices showed intraluminal air. Conclusion Multi-Detector Computed Tomography is superior over ultrasonography (USG) in detection of appendix. Modifications of CT protocol reduce limitations of CT over ultrasound in evaluation of appendix. Ultrasound size criteria for appendicitis (>6 mm) is not applicable in CT as normal appendix can measure >6 mm in CT. PMID- 29336424 TI - Clinical Profile and Electroencephalogram Findings in Children with Seizure Presenting to Dhulikhel Hospital. AB - Background Seizure disorder is the most common childhood neurologic condition and a major public health concern. Identification of the underlying seizure etiology helps to identify appropriate treatment options and the prognosis for the child. Objective This study was conducted to investigate the clinical profile, causes and electroencephalogram findings in children with seizure presenting to a tertiary center in Kavre district. Method This was a hospital based prospective study carried out in the Department of Pediatrics, Dhulikhel Hospital, Kavre from 1st April 2015 to 31st March 2016. Variables collected were demographics, clinical presentations, laboratory tests, brain imaging studies, electroencephalography, diagnosis and outcome. Result Study included 120 (age 1 month to 16 years) children attending Dhulikhel Hospital. Majority of the patients were male (60.84%). Age at first seizure was less than 5 years in 75.83% of children. Seizure was generalized in 62.50%, focal in 31.67% and unclassified in 5.83%. Common causes of seizure were - Primary generalized epilepsy (26.66%), neurocysticercosis (10%) and hypoxic injury (6.6%) which was diagnosed in the perinatal period. Febrile seizure (26.66%) was the most common cause of seizure in children between 6 months to 5 years of age. Neurological examination, electroencephalography and Computed Tomography were abnormal in 71.66%, 68.92% and 58.14% cases respectively. Seizure was controlled by monotherapy in 69.16% cases and was resistant in 7.50% of the cases. Conclusion Primary generalized epilepsy and febrile seizure were the most common causes of seizures in children attending Dhulikhel Hospital. Electroencephalogram findings help to know the pattern of neuronal activity. Response to monotherapy was good and valproic acid was the most commonly used drug. PMID- 29336426 TI - Combination Topical PUVAsol with Methotrexate Versus Methotrexate in the Treatment of Palmoplantar Psoriasis. AB - Background Non-pustular palmoplantar psoriasis (PPP) is chronic and disabling dermatosis. Topical psoralen and solar ultraviolet - A therapy (PUVAsol) is efficacious and safe therapy in psoriasis management. Objective To study the efficacy and adverse clinical effect profile of topical PUVAsol along with methotrexate in PPP. Method This is a prospective, randomized, clinical trial conducted among 54 patients with moderate to severe PPP. Patients were grouped into two categories. Group I was treated with weekly oral methotrexate only while group II had additional soak PUVAsol therapy twice weekly for a total of three months. Modified palmoplantar psoriasis area severity index (mPPPASI) score was used for quantification of severity. Patients were followed up monthly for the efficacy and adverse clinical event profile for 3 months; additionally patients were followed up monthly for next three months for assessment of relapse. Result The mean age of patients with PPP was found to be 38.7 +/- 13 years and male: female ratio was 1.1:1. In comparison to group I patients, statistically significant improvement was observed among group II patients in the third month follow up (p= 0.039). Fifteen patients (35%) achieved mPPPASI 75 during the treatment period. No significant difference was noted among the mPPPASI score during relapse assessment. Eleven (29%) patients had evidence of relapse (mPPPASI more than 25% of baseline) during follow up period. No statistically significant adverse clinical events were noted. Conclusion Topical PUVAsol is an efficacious, safe and cost effective modality in moderate to severe PPP. It could be employed in rotational or maintenance therapy of psoriasis. PMID- 29336427 TI - Congenital Bilateral Coloboma of Upper Eyelid. AB - Congenital coloboma of eyelid is a rare anomaly. There is partial or total absence of eyelid structures. A seven year male child had coloboma of both the upper lids lateral to lacrimal puctum affecting the medial half of lid symmetrically with symblepharon in region of defect bilaterally. The study was carried out at Maharaja Krushna Chandra Gajpati Medical College Berhampur, Odisha in year 2010. Both eyebrows were abnormal. He presented on and off diminution of vision, burning sensation, redness and watering from both the eyes on and off. On examination high refractive error was detected (visual aquity was 6/18 in righteye and 6/24 in left eye). Cornea was dry and opacities were present in both the eyes. There was limitation of ocular movement in both sides due to symblepharon. Nystagmus was present. The subject did not have any other associated anomaly. The birth and family history was normal. This case can be surgically treated and earliest management can give good fuctional as well as cosmetic results. PMID- 29336428 TI - Keratocystic Odontogenic Tumour Mimicking Lateral Periodontal Cyst: A Diagnostic Dilemma. AB - The Keratocystic Odontogenic Tumor is a developmental cyst derived from the enamel organ or from the dental lamina. It is a benign, multicystic, intraosseous tumor of odontogenic origin, with a characteristic lining of parakeratinized stratified squamous epithelium and has a potential for aggressive, infiltrative behavior and recurrence. Keratocystic Odontogenic Tumors have a predilection for males and occurs mainly in the second and third decade of life, most commonly in the mandible, mostly in the posterior body, the angle and the ascending ramus. It extends in the intramedullary space making it difficult to diagnose at an early stage. It is regarded as a distinctive entity because of its characteristic histology, proliferation kinetics and behavior. Main in 1970 described, collateral variant of Keratocystic Odontogenic Tumor, which presents adjacent to the roots of the teeth usually in the mandibular premolar region and radiologically is indistinguishable from the lateral periodontal cyst and gingival cyst. PMID- 29336429 TI - Thyroid Isthmus Agenesis in a Patient with Papillary Carcinoma of Thyroid. AB - Thyroid gland is the largest of all endocrine glands. It is composed of two lobes. These two lobes are joined by an isthmus and this resemble the letter "H". A wide range of morphological variations and developmental anomalies of the thyroid gland like hypoplasia, ectopy, hemiagenesis, and agenesis have been reported in literature. Out of these, the incidence of agenesis of the thyroid isthmus is rare, and very few cases have been reported. In our report, 28 year old male patient was found with agenesis of thyroid isthmus with papillary carcinoma in the right lobe of thyroid. During the operation it was seen that the right and left thyroid lobes were independent from each other and isthmus was absent. We will present a case of thyroid isthmus agenesis and discuss the clinical importance and the incidence of this case. PMID- 29336430 TI - Persistent Trophoblastic Disease at Cesarean Scar. AB - Pregnancy over the cesarean scar is the rarest cause of ectopic pregnancy and development of persistent trophoblastic disease at the scar site is extremely rare. A high index of suspicion is needed for early diagnosis and management of cesarean scar molar pregnancy. This condition is difficult to diagnose and must be considered in the patient with a history of cesarean section who has persistent vaginal bleeding or symptoms of pregnancy after suction evacuation. Diagnosis can be confirmedby measuring beta Human Chorionic Gonadotropin levels, transvaginal ultrasound with doppler flow evaluation. As this is an uncommon condition, this case report with conservative non surgical approach will add up to its clinical spectrum. PMID- 29336431 TI - Anti-PD1 in the wonder-gut-land. AB - After the initial success of cancer immunotherapy using immune checkpoint blockers, the challenge is to understand why only a minority of patients respond to the therapy and to increase the rate of response. Three recent papers now report that the gut microbiota modulates the response to anti-PD1 therapy in patients with epithelial cancers or melanoma. PMID- 29336432 TI - Increased Mortality Rates With Prolonged Corticosteroid Therapy When Compared With Antitumor Necrosis Factor-alpha-Directed Therapy for Inflammatory Bowel Disease. AB - OBJECTIVES: Crohn's disease (CD) and ulcerative colitis (UC) are inflammatory bowel diseases (IBD) that compromise quality of life and may increase mortality. This study compared the mortality risk with prolonged corticosteroid use vs. antitumor necrosis factor-alpha (anti-TNF) drugs in IBD. METHODS: A retrospective cohort study was conducted among Medicaid and Medicare beneficiaries from 2001 to 2013 with IBD prescribed either >3,000 mg of prednisone or equivalent within a 12 month period or new initiation of anti-TNF therapy, each treated as time-updating exposures. The primary outcome was all-cause mortality. Secondary outcomes included common causes of death. Marginal structural models were used to determine odds ratios (ORs) and 95% confidence intervals (CIs) for anti-TNF use relative to corticosteroids. RESULTS: Among patients with CD, 7,694 entered the cohort as prolonged corticosteroid users and 1,879 as new anti-TNF users. Among patients with UC, 3,224 and 459 entered the cohort as prolonged CS users and new anti-TNF users, respectively. The risk of death was statistically significantly lower in patients treated with anti-TNF therapy for CD (21.4 vs. 30.1 per 1,000 person-years, OR 0.78, 0.65-0.93) but not for UC (23.0 vs. 30.9 per 1,000 person years, OR 0.87, 0.63-1.22). Among the CD cohort, anti-TNF therapy was also associated with lower rates of major adverse cardiovascular events (OR 0.68, 0.55 0.85) and hip fracture (OR 0.54, 0.34-0.83). CONCLUSIONS: Compared with prolonged corticosteroid exposure, anti-TNF drug use was associated with reduced mortality in patients with CD that may be explained by lower rates of major adverse cardiovascular events and hip fracture. PMID- 29336433 TI - Eosinophilic Esophagitis: Relationship of Subepithelial Eosinophilic Inflammation With Epithelial Histology, Endoscopy, Blood Eosinophils, and Symptoms. AB - OBJECTIVES: For technical reasons, the histologic characterization of eosinophilic esophagitis (EoE)-specific alterations is almost exclusively based on those found in the esophageal epithelium, whereas little is known about subepithelial abnormalities. In this study, we aimed to systematically assess the nature of subepithelial histologic alterations, and analyze their relationship with epithelial histologic findings, endoscopic features, and symptoms. METHODS: Adult patients with established EoE diagnosis were prospectively included during a yearly follow-up visit. Patients underwent assessment of clinical, endoscopic, and histologic disease activity using EoE-specific scores. RESULTS: We included 200 EoE patients (mean age 43.5+/-15.7 years, 74% males) with a median peak count of 36 intraepithelial eosinophils/hpf (IQR 14-84). The following histologic features were identified in the subepithelial layer: eosinophilic infiltration (median peak count of 20 eosinophils/hpf (IQR 10-51)), eosinophil degranulation (43%), fibrosis (82%), and lymphoid follicles (56%). Peak intraepithelial eosinophil counts were higher, identical, and lower when compared to the subepithelial layer in 62.5%, 7%, and 30.5% of patients, respectively. Anti eosinophilic treatment at inclusion did not influence the relation between subepithelial and epithelial peak eosinophil counts. Subepithelial histologic activity correlated with epithelial histologic activity (rho 0.331, P<0.001), endoscopic severity (rho 0.208, P=0.003), and symptom severity (rho 0.179, P=0.011). Forty percent (21/52) of patients with <15 intraepithelial eosinophils/hpf had subepithelial peak counts of >=15/hpf. CONCLUSIONS: There is a significant but modest correlation between subepithelial histologic activity and epithelial histologic activity, endoscopic severity, and symptom severity. The long-term clinical impact of assessing subepithelial alterations in EoE needs to be further elucidated. PMID- 29336435 TI - Cardiac regeneration in 2017: Novel paradigms in the fight against heart failure. PMID- 29336436 TI - Dyslipidaemias in 2017: Atherogenic lipoproteins as treatment targets. PMID- 29336437 TI - Ge12{Fe(CO)3}8(MU-I)4: a germanium-iron cluster with Ge4, Ge2 and Ge units. AB - The germanium-iron cluster Ge12{Fe(CO)3}8(MU-I)4 was prepared by reacting GeI4 and Fe2(CO)9 in [BMIm]Cl/AlCl3 as ionic liquid (BMIm: 1-butyl-3 methylimidazolium). The cluster contains a Ge12Fe8 metal core consisting of a central Ge4 rectangle, two Ge2 pairs, and four single Ge atoms. These Ge units are interconnected by Fe atoms to a real Ge-Fe cluster. According to DFT calculations, Hund's localization criterion is fulfilled for the whole cluster if we assume three different atomic charges on the Ge4, Ge2, and Ge units. PMID- 29336434 TI - ACG Clinical Guideline: Alcoholic Liver Disease. AB - Alcoholic liver disease (ALD) comprises a clinical-histologic spectrum including fatty liver, alcoholic hepatitis (AH), and cirrhosis with its complications. Most patients are diagnosed at advanced stages and data on the prevalence and profile of patients with early disease are limited. Diagnosis of ALD requires documentation of chronic heavy alcohol use and exclusion of other causes of liver disease. Prolonged abstinence is the most effective strategy to prevent disease progression. AH presents with rapid onset or worsening of jaundice, and in severe cases may transition to acute on chronic liver failure when the risk for mortality, depending on the number of extra-hepatic organ failures, may be as high as 20-50% at 1 month. Corticosteroids provide short-term survival benefit in about half of treated patients with severe AH and long-term mortality is related to severity of underlying liver disease and is dependent on abstinence from alcohol. General measures in patients hospitalized with ALD include inpatient management of liver disease complications, management of alcohol withdrawal syndrome, surveillance for infections and early effective antibiotic therapy, nutritional supplementation, and treatment of the underlying alcohol-use disorder. Liver transplantation, a definitive treatment option in patients with advanced alcoholic cirrhosis, may also be considered in selected patients with AH cases, who do not respond to medical therapy. There is a clinical unmet need to develop more effective and safer therapies for patients with ALD. PMID- 29336438 TI - Zein-derived peptides as nanocarriers to increase the water solubility and stability of lutein. AB - Zein and its derived peptides have been used as nanocarriers for bioactive components. Lutein, as well as other xanthophylls, are characterized by blue light filtering and anti-oxidant properties. However, lutein is unstable and has low water solubility, poor absorption, and low bioavailability. In order to protect lutein from oxidative degradation, and to enhance its solubility and dispersibility, stability and bioactivity, lutein-loaded zein nanoparticles (LLZ NP) and zein-derived peptide nanoparticles (LLZ-PEP-NP) were prepared by the solvent diffusion method. Compared to LLZ-NP, LLZ-PEP-NP possessed good physicochemical properties, including particle size, polydispersity index, zeta potential, entrapment efficiency and in vitro stability. Specifically, transmission electron microscopy (TEM) images showed that LLZ-PEP-NP had a spherical form with a nanometric size and lutein was efficiently loaded into zein derived peptides through self-assembly. Dynamic light scattering (DLS) results demonstrated that LLZ-PEP-NP had a narrow size distribution in the range of 200 300 nm and a decreased zeta potential compared to that of LLZ-NP. The lutein entrapment efficiency (EE%) of LLZ-NP and LLZ-PEP-NP was more than 85%, while LUT PEP-NP showed higher lutein entrapment efficiency because of the better capacity of peptides bound with lutein. Nanoencapsulation of lutein into LLZ-PEP-NP resulted in a significantly higher solubility compared to nanoencapsulation of lutein into LLZ-NP and free lutein. The stabilities of lutein in zein-derived peptide nanoparticles in simulated gastric fluid (SGF) and simulated intestinal fluid (SIF) were improved. These results suggest that zein-derived peptides have the potential to be used as nanocarriers to enhance the solubility and stability of lutein, which can further improve its bioavailability. PMID- 29336439 TI - Tailoring a nanostructured plasmonic absorber for high efficiency surface assisted laser desorption/ionization. AB - The surface-assisted laser desorption/ionization (SALDI) effect is investigated on Au plated anodized aluminum oxide (Au/AAO) thin films, a new type of low-cost broadband plasmonic absorber, which has attracted a lot of attention recently. Mass spectrometry (MS) measurements show that the ionization efficiency of Au/AAO substrates can be significantly improved (*30 fold) by simply tuning the size of nanopores in Au/AAOs. This leads to a signal-to-noise ratio of 394, which is 4 times better than the result obtained using the conventional matrix-assisted laser desorption/ionization (MALDI)-MS technique. Experimental and theoretical studies show that the dramatic improvement is caused by the pore-size-dependent optical and thermal properties of Au/AAOs. It provides a simple yet effective strategy for designing and building high performance plasmonic SALDI substrates. PMID- 29336440 TI - Manganese/cobalt-catalyzed oxidative C(sp3)-H/C(sp3)-H coupling: a route to alpha tertiary beta-arylethylamines. AB - Reported herein is an oxidative coupling reaction of an alpha-C(sp3)-H bond of amine with a benzylic C(sp3)-H bond through Mn or Co catalysis to provide diverse collections of alpha-tertiary beta-arylethylamines. This protocol features an easily installed and removable coordinating activation group, a wide scope of substrates, low-cost metal catalysts, easily available starting materials and synthetic simplicity. PMID- 29336441 TI - A high pressure study of calmodulin-ligand interactions using small-angle X-ray and elastic incoherent neutron scattering. AB - Calmodulin (CaM) is a Ca2+ sensor and mediates Ca2+ signaling through binding of numerous target ligands. The binding of ligands by Ca2+-saturated CaM (holo-CaM) is governed by attractive hydrophobic and electrostatic interactions that are weakened under high pressure in aqueous solutions. Moreover, the potential formation of void volumes upon ligand binding creates a further source of pressure sensitivity. Hence, high pressure is a suitable thermodynamic variable to probe protein-ligand interactions. In this study, we compare the binding of two different ligands to holo-CaM as a function of pressure by using X-ray and neutron scattering techniques. The two ligands are the farnesylated hypervariable region (HVR) of the K-Ras4B protein, which is a natural binding partner of holo CaM, and the antagonist trifluoperazine (TFP), which is known to inhibit holo-CaM activity. From small-angle X-ray scattering experiments performed up to 3000 bar, we observe a pressure-induced partial unfolding of the free holo-CaM in the absence of ligands, where the two lobes of the dumbbell-shaped protein are slightly swelled. In contrast, upon binding TFP, holo-CaM forms a closed globular conformation, which is pressure stable at least up to 3000 bar. The HVR of K Ras4B shows a different binding behavior, and the data suggest the dissociation of the holo-CaM/HVR complex under high pressure, probably due to a less dense protein contact of the HVR as compared to TFP. The elastic incoherent neutron scattering experiments corroborate these findings. Below 2000 bar, pressure induces enhanced atomic fluctuations in both holo-CaM/ligand complexes, but those of the holo-CaM/HVR complex seem to be larger. Thus, the inhibition of holo-CaM by TFP is supported by a low-volume ligand binding, albeit this is not associated with a rigidification of the complex structure on the sub-ns A-scale. PMID- 29336442 TI - Ambient chemical fixation of CO2 using a highly efficient heterometallic helicate catalyst system. AB - Two novel heptanuclear 3d-4f helicates have been synthesized and characterized. The helicates act as catalysts and show high catalytic activity for the coupling of CO2 and epoxides to obtain cyclic carbonates with a wide substrate scope at ambient temperature and pressure. PMID- 29336443 TI - Actuating and memorizing bilayer hydrogels for a self-deformed shape memory function. AB - A general strategy for fabricating a double layer self-deformed shape memory hydrogel which includes a thermo-responsive actuating layer and a pH-responsive memorizing layer is presented. Compared with traditional shape memory polymer systems, the temporary shape of the hydrogel could be generated by a thermo responsive actuating layer upon the trigger of heat without the need for an external force, which could be further memorized by the pH-responsive memorizing layer. PMID- 29336444 TI - The structural diversity of C-rich DNA aggregates: unusual self-assembly of beetle-like nanostructures. AB - We studied the ability of oligonucleotides CnT25 (n = 2, 5, 7, 9, 12, 25) to form an intermolecular i-motif using circular dichroism, ultra-violet spectroscopy, nuclear magnetic resonance, high-resolution atomic force microscopy, high performance liquid chromatography, and molecular dynamics simulations. The arrangement of single-stranded oligonucleotides in multimer i-motifs was very unusual: C-tracts of different oligonucleotides followed each other consecutively in order to fold into a closed intermolecular i-motif core with minimal loops (one cytidine in a loop spanning over a minor groove, three cytidines in a loop over a major groove); intact T-tracts protruded from predefined loci allowing visualization of beetle-like nanostructures by atomic force microscopy. The same structures were formed from analogous biotinylated oligonucleotides demonstrating one of the potential applications of such structures as carriers of multiple functional groups. Our findings open up possibilities for the rational design of pH-sensitive DNA aggregates and evaluation of the efficiency of their assembly. PMID- 29336445 TI - Single Pd atomic catalyst on Mo2CO2 monolayer (MXene): unusual activity for CO oxidation by trimolecular Eley-Rideal mechanism. AB - The geometric stability, electronic structure and catalytic properties of a single Pd atom deposited on a pristine Mo2CO2 monolayer and a defective Mo2CO2 monolayer with an oxygen vacancy (denoted as Pd/OV-Mo2CO2) are systematically investigated through density functional theory. We find that the oxygen vacancy (OV) can stabilize the single Pd atom and make the Pd/OV-Mo2CO2 system an excellent mono-dispersed atomic catalyst. The Pd dopant serves as an active center which makes the intermediates react productively around it. Three reaction mechanisms are considered for CO oxidation to test the catalytic activity of Pd/OV-Mo2CO2, which exhibits high activity for CO oxidation via a tri-molecular Eley-Rideal (TER) mechanism with a rate-limiting energy barrier of 0.49 eV. The pre-adsorbed CO molecules on the Pd dopant could transfer electrons to the O2 2pi* orbitals, which would promote O2 molecule activation and induce O-O bond scission. This work demonstrates that the defective monolayer MXene may serve as a promising sort of support to fabricate single atomic catalysts (SACs) for CO oxidation or other reactions, agreeing well with the experimental reports, which opens up a new avenue for the design and fabrication of SACs of MXene-based materials. PMID- 29336446 TI - An elimination/Heck coupling/allylation cascade reaction: synthesis of 2,3 dihydrobenzofurans from allenoate adducts. AB - A highly regio- and stereoselective Pd-catalyzed cascade reaction of allenoate adducts has been developed. Various allenoate adducts of phosphine-catalyzed addition of allenoates are found to be efficient substrates for the preparation of 2,3-dihydrobenzofuran. It is the first example of allenoate adducts used as ideal and practical precursors of hard-to-get functionalized 1,3-butadienes for heterocycle synthesis. PMID- 29336447 TI - Synthesis of indolizine derivatives containing eight-membered rings via a gold catalyzed two-fold hydroarylation of diynes. AB - A gold-catalyzed method for the construction of indolizines with eight-membered rings has been developed. The reaction proceeded through a two-fold hydroarylation with indole or pyrrole derivatives containing a 1,6-diyne using a tri(1-adamantyl)phosphine gold complex as the catalyst, affording 1,8 disubstituted indolizines in moderate to good yields in DCE at 80 degrees C. The potential usefulness of these indolizines as blue or green OLEDs has been also disclosed. PMID- 29336448 TI - Determination of derived volumetric properties and heat capacities at high pressures using two density scaling based equations of state. Application to dipentaerythritol hexa(3,5,5-trimethylhexanoate). AB - Reliable equations of state (EoS) together with heat capacities at atmospheric pressure make it possible to determine properties such as the isobaric thermal expansivity, compressibility, both isothermal and isentropic, high pressure isobaric heat capacities or speed of sound. In this work, we analysed the reliability of two density scaling based EoS, Power-Law Density Scaling (PLDS) and General Density Scaling (GDS), and the Tammann-Tait EoS to determine these quantities. For this aim, dipentaerythritol hexa(3,5,5-trimethylhexanoate), diPEiC9, was chosen because it has been recently proposed as a candidate to fill the gap of reference fluids suitable for high pressure viscometer calibration or their verification. New experimental densities measured between (283.15 and 398.15) K at pressures up to 70 MPa together with isobaric heat capacities between (282.93 and 399.92) K and thermal conductivities between (283 and 333) K at 0.1 MPa of diPEiC9 are reported. Literature relative volumes up to 400 MPa for this compound were also used. The three EoSs give rise to coherent values of the above properties. The most difficult property to describe is isobaric thermal expansivity for which the isobaric curves can present minima and/or maxima and the isotherm curves can cross at different pressures. The loci of the maxima of the isobaric thermal expansivity in p-T diagrams of the GDS and PLDS EoSs are very close. PMID- 29336450 TI - Lithium diamidodihydridoaluminates: bimetallic cooperativity in catalytic hydroboration and metallation applications. AB - Cooperativity between the Li and Al centres is implicated in catalytic hydroboration reactions of aldehydes and ketones with pinacolborane via heteroleptic lithium diamidodihydridoaluminates. In addition to implementing hydroalumination, these versatile heteroleptic ates can also perform as amido bases as illustrated with an acidic triazole. PMID- 29336449 TI - pH-Dependent cooperativity and existence of a dry molten globule in the folding of a miniprotein BBL. AB - Solution pH plays an important role in protein dynamics, stability, and folding; however, detailed mechanisms remain poorly understood. Here we use continuous constant pH molecular dynamics in explicit solvent with pH replica exchange to describe the pH profile of the folding cooperativity of a miniprotein BBL, which has drawn intense debate in the past. Our data reconciled the two opposing hypotheses (downhill vs. two-state) and uncovered a sparsely populated unfolding intermediate. As pH is lowered from 7 to 5, the folding barrier vanishes. As pH continues to decrease, the unfolding barrier lowers and denaturation is triggered by the protonation of Asp162, consistent with experimental evidence. Interestingly, unfolding proceeded via an intermediate, with intact secondary structure and a compact, unlocked hydrophobic core shielded from solvent, lending support to the recent hypothesis of a universal dry molten globule in protein folding. Our work demonstrates that constant pH molecular dynamics is a unique tool for testing this and other hypotheses to advance the knowledge in protein dynamics, stability, and folding. PMID- 29336451 TI - The uptake, retention and clearance of drug-loaded dendrimer nanoparticles in astrocytes - electrophysiological quantification. AB - Nanoparticle-based drug delivery systems may impose risks to patients due to potential toxicity associated with a lack of clearance from cells or prolonged carrier-cell retention. This work evaluates vesicular cell uptake, retention and the possible transfer of endocytosed methylprednisolone-loaded carboxymethylchitosan/poly(amidoamine) dendrimer nanoparticles (NPs) into secretory vesicles of rat cultured astrocytes. The cells were incubated with NPs and unitary vesicle fusions/fissions with the plasma membrane were monitored employing high-resolution membrane capacitance measurements. In the NP-treated cells the frequency of unitary exocytotic events was significantly increased. The presence of NPs also induces an increase in the size of exocytotic vesicles interacting with the plasma membrane, which exhibit transient fusion with prolonged fusion pore dwell-time. Live-cell confocal imaging revealed that once NPs internalize into endocytotic compartments they remain in the cell for 7 days, although a significant proportion of these merge with secretory vesicles destined for exocytosis. Co-localization studies show the route of clearance of NPs from cells via the exocytotic pathway. These findings bring new insight into the understanding of the intracellular trafficking and biological interactions of drug-loaded dendrimer NPs targeting astrocytes. PMID- 29336452 TI - Resonant scattering of green light enabled by Ag@TiO2 and its application in a green light projection screen. AB - The ability to selectively scatter green light is essential for an RGB transparent projection display, and this can be achieved by a silver-core, titania-shell nanostructure (Ag@TiO2), based on the metallic nanoparticle's localized surface plasmon resonance. The ability to selectively scatter green light is shown in a theoretical design, in which structural optimization is included, and is then experimentally verified by characterization of a transparent film produced by dispersing such nanoparticles in a polymer matrix. A visual assessesment indicates that a high-quality green image can be clearly displayed on the transparent film. For completeness, a theoretical design for selective scattering of red light based on Ag@TiO2 is also shown. PMID- 29336453 TI - Semimetallic carbon honeycombs: new three-dimensional graphene allotropes with Dirac cones. AB - Classic two-dimensional (2D) graphene possesses outstanding properties due to Dirac cone structures. When scaling up to three-dimensional (3D) structures, their high porosity and large surface-area-to-volume ratio made them have more promising engineering perspectives. However, the currently synthesized and density-functional-theory-predicted 3D graphene structures, termed as carbon honeycombs (CHCs), are metallic. Herein, we propose new families of stable semimetallic CHC structures, which have lower energies than the previous experimentally reported structure and they would be realized experimentally. Results from density functional theory (DFT) and tight binding (TB) model showed that multiple Dirac cones with massless Dirac Fermions are present in both pristine and strained CHCs. Dirac cones in pristine CHCs originated from interactions between sp2-hybridized carbon atoms along the zigzag direction (denoted as C, i = alpha, beta,...), while strain-induced direction-dependent Dirac cones primarily stemmed from interactions (i) between the two C atoms bonded to a selected sp3-hybridized carbon atom or (ii) between C and C (alpha carbon atoms at the armchair direction) atoms. The largest Fermi velocity achieved is 1.204 * 106 m s-1, which is approximately 44.7% larger than that of graphene. These results open up a new direction in carbon-based 3D porous materials and these findings provide significant insights on numerous applications, ranging from nanoelectronics and nanomechanics to gas and liquid separations. PMID- 29336455 TI - 5'-Vitamin B12 derivatives suitable for bioconjugation via the amide bond. AB - Vitamin B12 is an attractive candidate for a drug or an imaging-agent carrier into cells, due to its dietary uptake and well established transport through glycoproteins. Utilization of this system requires an appropriate functionalization of vitamin B12 that both allows for the conjugation of therapeutics and does not interrupt its recognition by transport proteins. Modifications at the 5'-position on the ribose moiety are among a few approaches which meet the criteria. In this article we present vitamin B12 derivatives bearing either the amino or the carboxylic group at the 5'-position. The presence of these functional groups enables conjugation of biologically important molecules to vitamin B12via the amide bond. The established method is not only limited to organic media but also works in an aqueous environment, giving the desired products in very good yields. PMID- 29336454 TI - High temporal resolution delayed analysis of clinical microdialysate streams. AB - This paper presents the use of tubing to store clinical microdialysis samples for delayed analysis with high temporal resolution, offering an alternative to traditional discrete offline microdialysis sampling. Samples stored in this way were found to be stable for up to 72 days at -80 degrees C. Examples of how this methodology can be applied to glucose and lactate measurement in a wide range of in vivo monitoring experiments are presented. This paper presents a general model, which allows for an informed choice of tubing parameters for a given storage time and flow rate avoiding high back pressure, which would otherwise cause the microdialysis probe to leak, while maximising temporal resolution. PMID- 29336461 TI - New di-anchoring A-pi-D-pi-A configured organic chromophores for DSSC application: sensitization and co-sensitization studies. AB - Herein, we report the design and synthesis of three new un-symmetrical metal-free carbazole based organic dyes, E1-3 with A-pi-D-pi-A architecture, as effective di anchoring sensitizers in DSSCs. The new entities comprise carbazole as a donor scaffold connected to three different units, viz. cyano acetic acid, 2,4 thiazolidinedione and barbituric acid as acceptor/anchoring units via vinylene and phenylene as pi-spacers at 3- and 6-positions of the carbazole ring, respectively. Photophysical, electrochemical and theoretical studies were carried out in order to assess their feasibility as active sensitizers. Furthermore, their photoelectrochemical performances and charge transport properties in fabricated DSSCs were evaluated. The results revealed that the device fabricated with the E1 sensitizer displayed the highest PCE of 2.38% among the three dyes. Its JSC, VOC, and IPCE values were found to be 6.36 mA cm-2, 0.599 V, and 57%, respectively. Its enhanced performance is attributed to the presence of a highly electron withdrawing cyano acetic acid unit on either side of the carbazole core through appropriate pi-spacers. Interestingly, the DFT study indicated that the electron cloud of the LUMO level has been shifted significantly towards the 2 cyano phenyl acrylic acid connected at the 6th position of the carbazole ring, when compared to the cyano acrylic acid linked at position 3, confirming efficient charge separation in E1. The assigned lifetimes of E1-3 obtained from EIS studies were found to be in accordance with experimentally obtained photovoltaic parameters. Furthermore, E1-3, when co-sensitized with NCSU-10 sensitizer in DSSCs, displayed higher VOC values, but lower PCE values than that of NCSU-10. PMID- 29336462 TI - Cascaded photo-potential in a carbon dot-hematite system driving overall water splitting under visible light. AB - Hematite is an earth-abundant and ubiquitous semiconductor with a suitable bandgap of 2.1 eV for solar water splitting. Unfortunately, it suffers from a low conduction band position compared to the H+/H2 potential and typically an external bias has to be applied. Here, we demonstrate carbon dot-hematite (CD Fe2O3) nanocomposites as photocatalysts for visible-light-driven overall water splitting without any external bias or scavenger. Notably, the CD-Fe2O3 nanocomposites (carbon dots, 5 wt%) show a hydrogen evolution rate of 0.390 MUmol h-1 and an oxygen evolution rate of 0.225 MUmol h-1 under visible light illumination. In our system, carbon dots have been well coupled with hematite and are detected to generate a photo-induced potential. This photo-potential can be combined with hematite to meet the requirement for overall water splitting. In addition, carbon dots can significantly improve the charge separation efficiency. Our finding may greatly enhance the practical application of hematite for solar water splitting. PMID- 29336463 TI - Protein corona in drug delivery for multimodal cancer therapy in vivo. AB - The protein corona is inevitably formed on nanoparticles (NPs) when they are introduced in vivo and has been associated with a reduction in targeting yield, immune recognition and rapid blood clearance, leading to poor tumor accumulation. We have recently shown that it is possible to exploit the protein corona for drug delivery by exploiting it for loading and triggering the release of a photosensitizer Chlorin e6 (Ce6) for simultaneous photodynamic (PDT) and photothermal therapy (PTT) in vitro. Here, we extended our previous in vitro studies to evaluate its effectiveness in vivo. Specifically, we pre-formed the protein corona from mouse serum (MS) around gold nanorods (NRs) and loaded it with Ce6 to form NR-MS-Ce6. The intravenous delivery of NR-MS-Ce6 at a dose of 10 mg kg-1 Au loaded with 9.63 MUg kg-1 Ce6 into tumor-bearing NCr nude mice resulted in their tumor accumulation reaching a peak concentration of 560.3 MUg Au per kg tissue (0.0752% dose) within 6 h post-injection. Subsequent localized laser irradiation of the xenograft tumor resulted in a significant tumor temperature increase of 16.85 degrees C within 20 min. Combined with the simultaneous reactive oxygen species (ROS) production by Ce6 for PDT, complete tumor regression was achieved within 19 days with no tumor regrowth up to 31 days. Similar to other NPs, significant gold accumulation was observed in the major reticuloendothelial system (RES) organs, particularly the liver and spleen, although no acute toxicity was observed histologically 31 days post-treatment. Our results demonstrated for the first time an in vivo application of the protein corona around NPs in the loading and delivery of drugs in small animals. The ease of drug loading and the biocompatibility of the endogenous serum-based protein corona could make it useful for drug delivery and therapeutic applications instead of merely being considered as a biological artefact to be eliminated. PMID- 29336464 TI - Edge orientation dependent nanoscale friction. AB - Nanoscale friction is generally found to be a function of the contact area. However, little is known whether and how it is dependent on the contact area shape. In this study, based on molecular dynamics (MD) simulations about a rectangular graphene flake sliding on a diamond-supported graphene substrate, we show that the friction between the flake and the substrate is significantly dependent on the flake edge oriented perpendicular to the sliding direction, but less dependent on the edge along the sliding direction. As a result, the friction between the flake and the substrate is closely related to the aspect ratio of the flake. We propose a novel nanoscale friction formula for the translational motion of a rectangular slider. The simulation data fit the formula well and the effect of the aspect ratio on nanoscale friction can thus be efficiently captured. We discuss also the origin of the edge orientation dependent nanoscale friction. The present findings provide not only a preliminary evaluation of the contact area shape dependent nanoscale friction, but also a quite important guide for modeling the friction properties of nanodevices based on two-dimensional (2D) materials. PMID- 29336465 TI - Breast cancer stem-like cells are sensitized to tamoxifen induction of self renewal inhibition with enforced Let-7c dependent on Wnt blocking. AB - Let-7 microRNAs have been reported to have tumor suppressive functions; however, the effect of Let-7 when used in combination with chemotherapies is uncertain, but may have potential for use in clinical practice. In this study, we used RT qPCR, western blot analysis, cell proliferation assay, flow cytometry analysis, immunohistochemistry (IHC) staining, luciferase assays, cell sorting analysis and xenografted tumor model to explore the role of Let-7 in the chemotherapy sensitivity of breast cancer stem cells. The findings of the current study indicated that Let-7 enhances the effects of endocrine therapy potentially by regulating the self-renewal of cancer stem cells. Let-7c increased the anticancer functions of tamoxifen and reduced the ratio of cancer stem-like cells (CSCs), sensitizing cells to therapy-induced repression in an estrogen receptor (ER) dependent manner. Notably, Let-7 decreased the tumor formation ability of estrogen-treated breast CSCs in vivo and suppressed Wnt signaling, which further consolidated the previously hypothesis that Let-7 decreases the self-renewal ability, contributing to reduced tumor formation ability of stem cells. The suppressive effects exerted by Let-7 on stem-like cells involved Let-7c/ER/Wnt signaling, and the functions of Let-7c exerted with tamoxifen were dependent on ER. Taken together, the findings identified a biochemical and functional link between Let-7 and endocrine therapy in breast CSCs, which may facilitate clinical treatment in the future using delivery of suppressive Let-7. PMID- 29336466 TI - Magnolol protects against ischemic-reperfusion brain damage following oxygen glucose deprivation and transient focal cerebral ischemia. AB - In the present study, the neuroprotective potential of magnolol against ischemia reperfusion brain injury was examined via in vivo and in vitro experiments. Magnolol exhibited strong radical scavenging and antioxidant activity, and significantly inhibited the production of interleukin-6, tumor necrosis factor-a and nitrite/nitrate (NOX) in lipopolysaccharide-stimulated BV2 and RAW 264.7 cells when applied at concentrations of 10 and 50 uM, respectively. Magnolol (100 uM) also significantly attenuated oxygen-glucose deprivation-induced damage in neonatal rat hippocampal slice cultures, when administered up to 4 h following the insult. In a rat model of stable ischemia, compared with a vehicle-treated ischemic control, pretreatment with magnolol (0.01-1 mg/kg, intravenously) significantly reduced brain infarction following ischemic stroke, and post treatment with magnolol (1 mg/kg) remained effective and significantly reduced infarction when administered 2 h following the onset of ischemia. Additionally, magnolol (0.3 and 1 mg/kg) significantly reduced the accumulation of superoxide anions at the border zones of infarction and reduced oxidative damage in the ischemic brain. This was assessed by measuring the levels of NOX, malondialdehyde and myeloperoxidase, the ratio of glutathione/oxidized glutathione and the immunoreactions of 8-hydroxy-2'-deoxyguanosine and 4-hydroxynonenal. Thus, magnolol was revealed to protect against ischemia-reperfusion brain damage. This may be partly attributed to its antioxidant, radical scavenging and anti inflammatory effects. PMID- 29336467 TI - NOX4/ROS mediate ethanol-induced apoptosis via MAPK signal pathway in L-02 cells. AB - The aim of the present study was to assess the molecular mechanism of ethanol induced oxidative stress-mediated apoptosis in L-02 liver cells in order to elucidate novel pathways associated with alcoholic liver disease. L-02 cells were treated with 400 mM ethanol with or without inhibitors. The cell viability was measured by an MTT assay. Cell apoptosis was assessed by flow cytometry and a single-stranded DNA (ssDNA) assay. Intracellular reactive oxygen species (ROS) production of L-02 cells was determined using the 2',7'-dichlorofluorescein diacetate dye. The protein expression of c-Jun N-terminal kinase (JNK), phosphorylated (p)-JNK, P38, p-P38, NADPH oxidase (NOX)1, NOX4, p22phox, B-cell lymphoma 2 (Bcl-2) and Bcl-2-associated X protein were measured by western blot analysis. The mRNA expression of NOX1, NOX4 and p22phox was measured by reverse transcription polymerase chain reaction analysis. The results indicated that after treatment with various concentrations of ethanol for the indicated durations, L-02 cells were displayed a significant decrease in cell viability in a dose-and time-dependent manner. Ethanol-induced apoptosis and cell death of L 02 cells was accompanied by the generation of ROS, elevated expression of NOX, as well as phosphorylation of JNK and P-38. In addition, increased expression of Bcl 2 was induced by 400 mM ethanol. Furthermore, treatment with NOX inhibitor attenuated the ethanol-induced a decrease in cell viability, and an increase in apoptosis and Bcl-2 expression. In conclusion, ethanol induced apoptosis in the L 02 hepatocyte cell line via generation of ROS and elevated expression of NOX4. This indicated that activation of JNK and p38 in the mitogen-activated protein kinase pathway promotes apoptosis in L-02 cells. PMID- 29336468 TI - Increased expression of sterol regulatory element binding protein-2 alleviates autophagic dysfunction in NAFLD. AB - Sterol regulatory element binding protein-2 (SREBP-2) is an important transcription factor in lipid homeostasis. A previous study showed that SREBP-2 also activated autophagic genes during cell-sterol depletion. Alterations in autophagy are reported to be involved in the pathogenesis of nonalcoholic fatty liver disease (NAFLD). However, whether the regulation of SREBP-2 restores dysfunctional autophagy in hepatocytes during NAFLD remains to be elucidated. In the present study, a steatosis model was established with palmitic acid (PA) treatment at the indicated times and concentrations. Autophagosomes in hepatocytes were visualized by confocal microscopy after transfection with a tandem GFP-mCherry-LC3 construct. Autophagy-associated protein levels were analyzed by western blot analysis. Loss- and gain-of-function studies were performed to examine the role of SREBP-2 in the regulation of hepatocyte autophagy. It was demonstrated that PA induced autophagy and enhanced autophagic flux at the early stage, whereas prolonged treatment with PA resulted in dysfunction of autophagy in the PA-induced steatotic hepatocytes. In addition, different cellular models presented with differing dysfunctional autophagy in response to fatty acid overload. It was also confirmed that SREBP-2 regulated autophagy-related gene expression in hepatocytes, and it was shown that the overexpression of SREBP-2 increased the expression of autophagy-related genes, but did not affect the inhibition of the autophagic flux in lipid-overloaded HL 7702 cells. By contrast, increased SREBP-2 partly restored the inhibited autophagic activity in lipid-overloaded hepatoma HepG2 cells. Taken together, the present study demonstrated that autophagic function was impaired in lipid overloaded human hepatocytes, and the differential effect of PA on autophagy was associated with the duration of PA and the cell type. Under these conditions, the overexpression of SREBP-2 alleviated the inhibited autophagic activity rather than the inhibition of autophagic flux. Consequently, the results indicated that restoration of autophagy dysfunction via the regulation of SREBP-2 may be a potential therapeutic target for the treatment of NAFLD. PMID- 29336469 TI - Transcriptional regulation of HIV-1 host factor COMMD1 by the Sp family. AB - Copper metabolism Murr1 domain containing 1 (COMMD1) has multiple functions in the regulation of protein stability at the plasma membrane and in the cytoplasm. However, the regulation of COMMD1 transcriptional has remained to be elucidated. In the present study, the 5'-flanking region (-1,192/+83 bp) of the human COMMD1 gene was cloned. It was observed that the COMMD1 promoter region contains GC-rich region that has 7 putative Sp1-binding sites via in silico analysis. The proximal promoter region at -289/+83 bp was required for COMMD1 basal promoter activity by deletion constructs of COMMD1 promoter. Moreover, Sp1 inhibitor, mithramycin A, suppressed basal COMMD1 promoter activity. The Sp1-binding site (-11/-1 bp) in the proximal promoter region was a critical site for COMMD1 gene regulation by Sp1 and Sp3. Sp1 upregulated COMMD1 promoter activity, whereas Sp3 suppressed it. Endogenous Sp1 and Sp3 bound to the proximal promoter region of COMMD1. Taken together, Sp1 constitutively regulates the basal expression of the COMMD1 gene in human epithelial cell lines. PMID- 29336470 TI - TNF-alpha induces Drp1-mediated mitochondrial fragmentation during inflammatory cardiomyocyte injury. AB - Dynamin-related peptide 1 (Drpl)-mediated mitochondrial fission is an important process associated with cardiac dysfunction under different pathological conditions. The aim of the present study was to investigate the expression of Drpl during inflammatory myocardial injury. Sprague-Dawley rats were treated intraperitoneally with lipopolysaccharides (LPS). Furthermore, cultured H9C2 cardiomyocytes were treated with LPS, interleukin-6 (IL-6) and tumor necrosis factor-alpha (TNF-alpha). Total and mitochondrial proteins were isolated from the heart tissue of rats and from the H9C2 cardiomyocytes. Expression levels of Drp1 and RhoA were analyzed by western blotting. Mitochondrial morphology was determined using confocal laser microscopy. The levels of mitochondrial Drp1 and phosphorylated-Drp1 (p-Drp1) Ser616 were revealed to be increased in rats 6 h after injection with LPS (5, 10 or 20 mg/kg). Furthermore, treatment with LPS and IL-6 did not demonstrate a significant effect on the expression of total and mitochondrial Drp1 in H9C2 cardiomyocytes in vitro; however, treatment with TNF alpha (20 ng/ml) significantly enhanced the levels of mitochondrial Drp1 and p Drp1 Ser616. Following TNF-alpha treatment, the expression of Ras homolog gene family member A (RhoA) was also revealed to increase. Treatment with both Y-27632 and fasudil, [Rho kinase (ROCK) inhibitors], was demonstrated to attenuate the otherwise TNF-alpha-induced increase in p-Drp1 Ser616 and mitochondrial Drp1. In addition, it was revealed that Y-27632 and fasudil may also attenuate the TNF alpha-induced increase in mitochondrial fragmentation and cell viability. Therefore, the findings of the present study suggest that TNF-alpha is the predominant inducer of Drp1 S616 phosphorylation during sepsis. The results of the present study also suggest that the RhoA/ROCK pathway may be involved in the phosphorylation and mitochondrial translocation of Drp1, which leads to mitochondrial fragmentation. PMID- 29336471 TI - Neuroprotective effects of p53/microRNA-22 regulate inflammation and apoptosis in subarachnoid hemorrhage. AB - The present study aimed to investigate whether the neuroprotective effects of p53/microRNA-22 regulate inflammation and apoptosis in subarachnoid hemorrhage (SAH). In a mouse model of SAH, microRNA-22 expression was upregulated. In addition, downregulation of microRNA-22 in HEB cells increased the mRNA expression levels of interleukin (IL)-6, induced cysteine rich angiogenic inducer 61 (Cyr61) expression, and suppressed the protein expression levels of B-cell lymphoma 2-associated X protein (Bax) and caspase-3 activity. Treatment with the p53 inhibitor, pifithrin-alpha, suppressed p53 protein expression, increased IL-6 mRNA expression, decreased microRNA-22 expression, Bax protein expression and caspase-3 activity, and induced Cyr61 expression in mice with SAH. Furthermore, p53 expression was knocked down using p53 small interfering RNA, which suppressed microRNA-22 expression and increased IL-6 mRNA expression, inhibited Bax protein expression and caspase-3 activity, and induced Cyr61 expression in HEB cells. The present study demonstrated that the neuroprotective effects of p53/microRNA-22 may regulate inflammation and apoptosis in SAH. Reverse transcription quantitative polymerase chain reaction (qPCR) was used to analyze the expression of microRNA-22, western blot analysis was used to analyze the protein expression of Bax and Cyr61. PMID- 29336473 TI - Usefulness of identifying G-protein-coupled receptor dimers for diagnosis and therapy of neurodegenerative diseases and of gliomas. AB - Immunochemical detection of G-protein-coupled receptors (GPCRs) in cells and tissues was a technical challenge for years. After the discovery of formation of GPCR dimers/trimers/tetramers in transfected cells, a most recent challenge has been to confirm receptor-receptor interactions in natural sources. The occurrence of dimers or higher order oligomers is important from a therapeutic point of view, mainly because their physiology/pharmacology is different from those of individual receptors. On the one hand, pathophysiological factors need to count more on GPCR dimers than on individual receptors. On the other hand, the expression of dimers, trimers, etc. may change in pathological conditions and/or along the course of a disease. This review will focus on G-protein-coupled receptor dimers, on how to detect them by novel histological techniques and on how the detection may be used in diagnosis and therapy of ailments of the central nervous system, for instance in neurodegenerative diseases and gliomas. PMID- 29336472 TI - Baicalin increases hair follicle development by increasing canonical Wnt/beta catenin signaling and activating dermal papillar cells in mice. AB - Baicalin is a traditional Chinese herbal medicine commonly used for hair loss, the precise molecular mechanism of which is unknown. In the present study, the mechanism of baicalin was investigated via the topical application of baicalin to reconstituted hair follicles on mice dorsa and evaluating the effect on canonical Wnt/beta-catenin signaling in the hair follicles and the activity of dermal papillar cells. The results indicate that baicalin stimulates the expression of Wnt3a, Wnt5a, frizzled 7 and disheveled 2 whilst inhibiting the Axin/casein kinase 1alpha/adenomatous polyposis coli/glycogen synthase kinase 3beta degradation complex, leading to accumulation of beta-catenin and activation of Wnt/beta-catenin signaling. In addition, baicalin was observed to increase the alkaline phosphatase levels in dermal papillar cells, a process which was dependent on Wnt pathway activation. Given its non-toxicity and ease of topical application, baicalin represents a promising treatment for alopecia and other forms of hair loss. Further studies of baicalin using human hair follicle transplants are warranted in preparation for future clinical use. PMID- 29336474 TI - Exposure to violence, teacher support, and school delay amongst adolescents in South Africa. AB - BACKGROUND: Many adolescents in South Africa are exposed to multiple types of violence, socio-economic disadvantage, and low-quality education: all risk factors for educational outcomes including school delay (grade enrolment below that which is age-appropriate). Supportive teacher-student relationships are known to be associated with improved academic outcomes in high-income contexts. AIMS: To investigate whether the academic and emotional support provided by teachers can protect against school delay for adolescents exposed to multiple types of violence and socio-economic disadvantage in South Africa. SAMPLE: High risk sample of 503 adolescents aged 10-18 exposed to multiple types of violence and socio-economic disadvantage at home, in school, and in their communities. METHODS: Multilevel aggregated structural equation modelling was applied to pre/post-RCT data. This investigated whether associations between adolescent exposure to violence and school delay could be lessened by having teachers who were academically and/or emotionally supportive. RESULTS: More frequent exposure to 'poly-violence' and receiving more emotional support from teachers were independently associated with greater school delay. On the contrary, higher academic support from teachers was associated with lower school delay. Neither academic nor emotional teacher support was found to moderate the relationship between more frequent exposure to 'poly-violence' and an increased risk of adolescent school delay. CONCLUSION: Adolescents' academic support from teachers is low in poorly resourced school contexts in South Africa. School-based secondary prevention programmes assisting teachers with more training and academic support in deprived contexts have potential to reduce the impact of violence and socio-economic disadvantage on adolescents' school delay. PMID- 29336475 TI - Exosomes originating from MSCs stimulated with TGF-beta and IFN-gamma promote Treg differentiation. AB - Mesenchymal stem cells (MSCs) have been approved as a cellular drug for the treatment of a variety of immune-related diseases by the government of many countries'. Previous investigations, including ours, have shown that exosomes secreted by MSCs (MSC-ex) are one of the main factors responsible for the therapeutic effect of MSCs. However, the immune modulation activities and the contents of MSC-ex derived from cells under different incubation conditions differ dramatically. Therefore, the optimal way to ensure effectiveness is by identifying and preparing MSC-ex with confirmed potent immunosuppressive activity. The aim of this study was to investigate and analyze the composition and function of MSC-ex secreted by MSCs stimulated by different cytokines to obtain exosomes with more potent immunosuppressive activity. To achieve this aim, umbilical cord-derived MSCs were treated with PBS, TGF-beta, IFN-gamma, or TGF beta plus IFN-gamma for 72 hr. Then, exosomes were isolated from the culture supernatants. Common exosome markers, such as CD9, CD63, and CD81, were detected and analyzed by FCM. At the same time, the TGF-beta, IFN-gamma, IDO, and IL-10 content in exosomes was detected, and the influence of exosmes from defferent groups on the induction of mononuclear cell transformation into Tregs was analyzed via FCM. Our results show that the TGF-beta combined with IFN-gamma exosome group more effectively promoted the transformation of mononuclear cells to Tregs, and the analysis showed that IDO may play an important role. This study might provide a novel strategy to treat GVHD as well as other immune-associated disorders. PMID- 29336476 TI - Drivers and demographic consequences of seasonal mass changes in an alpine ungulate. AB - We know little about the determinants and demographic consequences of the marked seasonal mass changes exhibited by many northern and alpine mammals. We analysed 43 years of data on individual winter mass loss (the difference between mass in early June and mass in mid-September the previous year) and summer mass gain (the difference between mass in mid-September and in early June of the same year) in adult bighorn sheep (Ovis canadensis). We calculated relative seasonal mass change as a proportion of individual body mass at the start of each season. We first examined the effects of weather and population density on relative changes in body mass. We then assessed the consequences of relative seasonal mass changes on reproduction. Mean April-May temperature was the main driver of relative seasonal mass changes: warm springs reduced both relative winter mass loss and summer mass gain of both sexes, likely partially due to a trade-off between growth rate of plants and duration of access to high-quality forage. Because these effects cancelled each other, spring temperature did not influence mass in mid-September. Mothers that lost relatively more mass during the winter had lambs that gained less mass during summer, likely because these females allocated fewer resources to lactation. Winter survival of lambs increased with their summer mass gain. In males, relative mass loss during winter, which includes the rut, did not influence the probability of siring at least one lamb, possibly indicating that greater mating effort did not necessarily translate into greater reproductive success. Our findings improve our understanding of how weather influences recruitment and underline the importance of cryptic mechanisms behind the effects of climate change on demographic traits. PMID- 29336477 TI - Intraoperative adverse events associated with extremely preterm cesarean deliveries. AB - INTRODUCTION: At the same time as survival is increasing among premature babies born before 26 weeks of gestation, the rates of cesarean deliveries before 26 weeks is also rising. Our purpose was to compare the frequency of intraoperative adverse events during cesarean deliveries in two gestational age groups: 24-25 weeks and 26-27 weeks. MATERIAL AND METHODS: This single-center retrospective cohort study included all women with cesarean deliveries performed before 28+0 weeks from 2007 through 2015. It compared the frequency of intraoperative adverse events between two groups: those at 24-25 weeks of gestation and at 26-27 weeks. Intraoperative adverse events were a classical incision, transplacental incision, difficulty in fetal extraction (explicitly mentioned in the surgical report), postpartum hemorrhage (>=500 mL of blood loss), and injury to internal organs. A composite outcome including at least one of these events enabled us to analyze the risk factors for intraoperative adverse events with univariate and multivariable analysis. Stratified analyses by the indication for the cesarean were performed. RESULTS: We compared 74 cesarean deliveries at 24-25 weeks of gestation and 214 at 26-27 weeks. Intraoperative adverse events occurred at higher rates in the 24-25-week group (63.5 vs. 30.8%, p < 0.001). After adjustment for confounding factors, this group remained at significantly higher risk of intraoperative adverse events [adjusted odds ratio 5.04 (2.67-9.50)], even after stratification by indication for the cesarean. CONCLUSION: These results should help obstetricians and women making decisions about cesarean deliveries at these extremely low gestational ages. PMID- 29336478 TI - Apelin-13 treatment enhances the stability of atherosclerotic plaques. AB - BACKGROUND: Apelin is an endogenous peptidergic system which modulates cardiovascular function. Recent studies pointed out a fundamental contribution of apelin on atherosclerosis development; however, such reports revealed contradictory data, and to date, it is difficult to accurately define a beneficial or deleterious role. To better understand apelin function on atherosclerosis, we aimed to investigate apelin-13 treatment effects on atherosclerotic plaques composition. DESIGN: Apolipoprotein E gene-deleted mice were fed on Western-type diet for 11 weeks. Atherosclerotic plaque formation was induced in the carotid artery by a shear stress modifier device, which exposes the same vessel to distinct patterns of shear stress enabling the formation of plaques with different composition. Mice were treated with apelin-13 (2 mg kg-1 day-1 ) or vehicle for the last 3 weeks. RESULTS: Apelin-13 treatment did not alter the lipid content of low shear stress- and oscillatory shear stress-induced plaques in the carotid. However, apelin-13 greatly ameliorated plaque stability by increasing intraplaque collagen content and reducing MMP-9 expression. Furthermore, apelin-13 decreased the infiltration of inflammatory cells (neutrophil and macrophage) and intraplaque reactive oxygen species content. Interestingly, apelin-13 treatment reduced total cholesterol, LDL levels and free fatty acid serum levels, while HDL, triglycerides serum levels were not significantly changed. CONCLUSIONS: Apelin-13 treatment for 3 weeks did not alter the lesion size, but it significantly enhanced the stable phenotype of atherosclerotic plaques and improved serum lipid profile. These results indicate that activation of apelin system decreases plaque vulnerability. PMID- 29336479 TI - Inhibition of glycolytic metabolism in glioblastoma cells by Pt3glc combinated with PI3K inhibitor via SIRT3-mediated mitochondrial and PI3K/Akt-MAPK pathway. AB - Glioblastoma multiforme (GBM) is the most malignant and aggressive glioma with abnormal expression of genes that mediate glycolytic metabolism and tumor cell growth. Petunidin-3-O- glucoside (Pt3glc) is a kind of anthocyanin in the red grape and derived beverages, representing the most common naturally occurring anthocyanins with a reduced incidence of cancer and heart diseases. In this study, whether Pt3glc could effectively regulate glycolysis to inhibit GBM cell was investigated by using the DBTRG-05MG cell lines. Notably, Pt3glc displayed potent anti-proliferative activity and significantly changed the protein levels related to both glycolytic metabolism and GBM cell survival. The expression of the pro-apoptotic protein Bax was increased with concomitant reduction on the levels of the anti-apoptotic protein Bcl-2 and caspase-3 activity. Furthermore, the levels of survival signaling proteins, such as Akt and p-Akt (Scr473), ERK and phospho-ERK, were significantly decreased by Pt3glc in combination with the PI3K inhibitor of LY294002. Most importantly, the levels of SIRT3 and phosphorylated p53 were also down-regulation, indicating that Pt3glc combinated with PI3K inhibitor could induced GBM cell death may act via the SIRT3/p53 mediated mitochondrial and PI3K/Akt-ERK pathways. Our findings thus provide rational evidence that the combination of Pt3glc with PI3K inhibitor, which target alternative pathways in GBM cells, may be a useful adjuvant therapy in glioblastoma treatment. This article is protected by copyright. All rights reserved. PMID- 29336480 TI - Species co-occurrence networks: Can they reveal trophic and non-trophic interactions in ecological communities? AB - Co-occurrence methods are increasingly utilized in ecology to infer networks of species interactions where detailed knowledge based on empirical studies is difficult to obtain. Their use is particularly common, but not restricted to, microbial networks constructed from metagenomic analyses. In this study, we test the efficacy of this procedure by comparing an inferred network constructed using spatially intensive co-occurrence data from the rocky intertidal zone in central Chile to a well-resolved, empirically based, species interaction network from the same region. We evaluated the overlap in the information provided by each network and the extent to which there is a bias for co-occurrence data to better detect known trophic or non-trophic, positive or negative interactions. We found a poor correspondence between the co-occurrence network and the known species interactions with overall sensitivity (probability of true link detection) equal to 0.469, and specificity (true non-interaction) equal to 0.527. The ability to detect interactions varied with interaction type. Positive non-trophic interactions such as commensalism and facilitation were detected at the highest rates. These results demonstrate that co-occurrence networks do not represent classical ecological networks in which interactions are defined by direct observations or experimental manipulations. Co-occurrence networks provide information about the joint spatial effects of environmental conditions, recruitment, and, to some extent, biotic interactions, and among the latter, they tend to better detect niche-expanding positive non-trophic interactions. Detection of links (sensitivity or specificity) was not higher for well-known intertidal keystone species than for the rest of consumers in the community. Thus, as observed in previous empirical and theoretical studies, patterns of interactions in co-occurrence networks must be interpreted with caution, especially when extending interaction-based ecological theory to interpret network variability and stability. Co-occurrence networks may be particularly valuable for analysis of community dynamics that blends interactions and environment, rather than pairwise interactions alone. PMID- 29336481 TI - The "unguarded-X" and the genetic architecture of lifespan: Inbreeding results in a potentially maladaptive sex-specific reduction of female lifespan in Drosophila melanogaster. AB - Sex differences in ageing and lifespan are ubiquitous in nature. The "unguarded X" hypothesis (UXh) suggests they may be partly due to the expression of recessive mutations in the hemizygous sex chromosomes of the heterogametic sex, which could help explain sex-specific ageing in a broad array of taxa. A prediction central to the UX hypothesis is that inbreeding will decrease the lifespan of the homogametic sex more than the heterogametic sex, because only in the former does inbreeding increase the expression of recessive deleterious mutations. In this study, we test this prediction by examining the effects of inbreeding on the lifespan and fitness of male and female Drosophila melanogaster across different social environments. We found that, across social environments, inbreeding resulted in a greater reduction of female than male lifespan, and that inbreeding effects on fitness did not seem to counterbalance sex-specific effects on lifespan, suggesting the former are maladaptative. Inter- and intra-sexual correlation analyses also allowed us to identify evidence of an underlying joint genetic architecture for inbreeding effects on lifespan. We discuss these results in light of the UXh and other alternative explanations, and suggest that more attention should be paid to the possibility that the "unguarded-X" may play an important role in the evolution of sex-specific lifespan. PMID- 29336482 TI - Litter removal in a tropical rain forest reduces fine root biomass and production but litter addition has few effects. AB - Many old-growth lowland tropical rain forests are potentially nutrient limited, and it has long been thought that many such forests maintain growth by recycling nutrients from decomposing litter. We investigated this by continuously removing (for 10 yr) freshly fallen litter from five (45 m * 45 m) plots, adding it to five other plots, there were five controls. From monthly measures over 1 yr we show that litter removal caused lower: fine root (<=2 mm diameter) standing mass, fine root standing length, fine root length production and fine root length survivorship. Litter addition did not significantly change fine root mass or length or production. Nutrient concentrations in fine roots in litter removal plots were lower than those in controls for nitrogen (N), calcium (Ca) and magnesium (Mg), concentrations in fine roots in litter addition plots were higher for N and Ca. Chronic litter removal has resulted in reduced forest growth due to lack of nutrients, probably nitrogen. Conversely, long-term litter addition has had fewer effects. PMID- 29336483 TI - Glucose metabolism during in vitro maturation of mouse oocytes: An study using RNA interference. AB - In previous studies on glucose metabolism during in vitro maturation, intact cumulus-oocyte complexes (COCs) were treated with enzyme inhibitors/activators. Because inhibitors/activators may have non-specificity and/or toxicity, and culture of COCs cannot differentiate whether glucose metabolism of cumulus cells (CCs) or that of the oocyte supports oocyte maturation, results from the previous studies must be verified by silencing genes in either CCs or cumulus-denuded oocytes (DOs). In this study, RNAi was adopted to specify the effects of glucose metabolism in CCs or DOs on oocyte maturation. Although silencing either glyceraldehyde 3-phosphate dehydrogenase (GAPDH) or glucose-6-phosphate dehydrogenase (G6PD) genes in CCs significantly decreased competence of the cocultured DOs, silencing G6PD impaired competence to a greater extent. While silencing G6PD or GAPDH of CCs decreased glutathione and ATP contents of cocultured DOs to similar extents, silencing G6PD increased oxidative stress as well. Analysis on metabolite contents and oxidative stress index and culture of DOs in medium conditioned with gene-silenced CCs indicated that CCs supported oocyte maturation by releasing glucose metabolites. Silencing mitochondrial pyruvate carrier 1 or NADH dehydrogenase (ubiquintone) flavoprotein 1 of DOs significantly impaired their maturation. The results have unequivocally confirmed that CCs promote oocyte maturation by releasing glucose metabolites from both pentose phosphate pathway (PPP) and glycolysis. Pyruvate is transferred into DOs by mitochondrial pyruvate carrier (MPC) and utilized through mitochondrial electron transport to support maturation. PMID- 29336484 TI - Epigenetic regulation of megakaryocytic and erythroid differentiation by PHF2 histone demethylase. AB - Plant homeodomain finger 2 (PHF2) is a JmjC family histone demethylase that demethylates H3K9me2, a repressive gene marker. PHF2 was found to play a role in the differentiation of several tissue types such as osteoblast and adipocyte differentiation. We report here that PHF2 plays a role in the epigenetic regulation of megakaryocytic (MK) and erythroid differentiation. We investigated PHF2 expression during MK and erythroid differentiation in K562 and human CD34+ progenitor (hCD34+ ) cells. Our data demonstrate that PHF2 expression is down regulated during megakaryopoiesis and erythropoiesis. PHF2 has a negative role in MK and erythroid differentiation of K562 cells; knockdown of PHF2 promotes MK and erythroid differentiation of hCD34+ cells. Similarly, we found that p53 expression is also down-regulated during MK and erythroid differentiation, which parallels PHF2 expression. PHF2 binds to the p53 promoter and regulates the expression of p53 by demethylating H3K9me2 in the promoter region of p53. Taken together, our data show that PHF2 is a negative epigenetic regulator of MK and erythroid differentiation, and that one of the pathways through which PHF2 affects MK and erythroid differentiation is via regulation of p53 expression. PMID- 29336485 TI - A multimodal microcharacterisation of trace-element zonation and crystallographic orientation in natural cassiterite by combining cathodoluminescence, EBSD, EPMA and contribution of confocal Raman-in-SEM imaging. AB - In cassiterite, tin is associated with metals (titanium, niobium, tantalum, indium, tungsten, iron, manganese, mercury). Knowledge of mineral chemistry and trace-element distribution is essential for: the understanding of ore formation, the exploration phase, the feasibility of ore treatment, and disposal/treatment of tailings after the exploitation phase. However, the availability of analytical methods make these characterisations difficult. We present a multitechnical approach to chemical and structural data that includes scanning electron microscopy (SEM)-based imaging and microanalysis techniques such as: secondary and backscattered electrons, cathodoluminescence (CL), electron probe microanalyser (EPMA), electron backscattered diffraction (EBSD) and confocal Raman-imaging integrated in a SEM (RISE). The presented results show the complementarity of the used analytical techniques. SEM, CL, EBSD, EPMA provide information from the interaction of an electron beam with minerals, leading to atomistic information about their composition, whereas RISE, Raman spectroscopy and imaging completes the studies with information about molecular vibrations, which are sensitive to structural modifications of the minerals. The correlation of Raman bands with the presence/absence of Nb, Ta, Fe (heterovalent substitution) and Ti (homovalent substitution) is established at a submicrometric scale. Combination of the different techniques makes it possible to establish a direct link between chemical and crystallographic data of cassiterite. PMID- 29336486 TI - Preventing post-traumatic stress disorder following childbirth and traumatic birth experiences: a systematic review. AB - INTRODUCTION: Between 9 and 44% of women experience giving birth as traumatic, and 3% of women develop a post-traumatic stress disorder following childbirth. Knowledge on risk factors is abundant, but studies on treatment are limited. This study aimed to present an overview of means to prevent traumatic birth experiences and childbirth-related post-traumatic stress disorder. MATERIAL AND METHODS: Major databases [Cochrane; Embase; PsycINFO; PubMed (Medline)] were searched using combinations of the key words and their synonyms. RESULTS: After screening titles and abstracts and reading 135 full-text articles, 13 studies were included. All evaluated secondary prevention, and none primary prevention. Interventions included debriefing, structured psychological interventions, expressive writing interventions, encouraging skin-to-skin contact with healthy newborns immediately postpartum and holding or seeing the newborn after stillbirth. The large heterogeneity of study characteristics precluded pooling of data. The writing interventions to express feelings appeared to be effective in prevention. A psychological intervention including elements of exposure and psycho-education seemed to lead to fewer post-traumatic stress disorder symptoms in women who delivered via emergency cesarean section. CONCLUSIONS: No research has been done on primary prevention of traumatic childbirth. Research on secondary prevention of traumatic childbirth and post-traumatic stress disorder following delivery provides insufficient evidence that the described interventions are effective in unselected groups of women. In certain subgroups, results are inhomogeneous. PMID- 29336487 TI - Mig6 reduces inflammatory mediators production by regulating the activation of EGFR in LPS-induced endotoxemia. AB - Epithelial growth factor receptor (EGFR), a tyrosine kinase receptor, plays a critical role in lipopolysaccharide (LPS)-induced endotoxemia. Meanwhile, EGFR signaling is regulated by multiple feedback regulators, including mitogen inducible gene 6 protein (Mig6). However, as an EGFR regulator, the role of Mig6 in endotoxemia is still remained unknown. Here, we reported for the first time that LPS treatment increased the expression of Mig6 and this effect could be inhibited by EGFR inhibitor, PD168393 or erlotinib. Furthermore, knocking down of Mig6 expression led to increased EGFR activation and inflammatory mediators (TNF alpha, il-1beta) production in response to LPS treatment. On the other hand, the increased EGFR activation and TNF-alpha or il-1beta production in LPS treatment could be inhibited by Mig6 overexpression. Besides, in LPS-induced endotoxemia, ERK1/2 and p-38 activation required Mig6. All these results indicated that Mig6 regulates the production of inflammatory mediators (TNF-alpha, il-1beta) through inhibiting the over activation of EGFR, which in turn inhibit MAPKs signaling (ERK1/2, p-38). These finding suggested that Mig6 may be a novel potential target for controlling the over inflammatory response in endotoxemia. PMID- 29336489 TI - Executive summary of the methods report for 'The EAACI/GA2 LEN/EDF/WAO Guideline for the Definition, Classification, Diagnosis and Management of Urticaria. The 2017 Revision and Update'. PMID- 29336488 TI - Neonatal Ethanol Exposure Causes Behavioral Deficits in Young Mice. AB - BACKGROUND: Fetal ethanol (EtOH) exposure can damage the developing central nervous system and lead to cognitive and behavioral deficits, known as fetal alcohol spectrum disorders (FASD). EtOH exposure to mouse pups during early neonatal development was used as a model of EtOH exposure that overlaps the human third-trimester "brain growth spurt"-a model that has been widely used to study FASD in rats. METHODS: C57BL/6 male and female mice were exposed to EtOH (4 g/kg/d) on postnatal days (PD) 4 to 10 by oral intubation. Intubated and nontreated controls were also included. Behavioral testing of the offspring, including open field, elevated plus maze, and Morris water maze, was performed on PD 20 to 45. RESULTS: EtOH exposure during PD 4 to 10 resulted in hyperactivity and deficits in learning and memory in young mice with no apparent sex differences. CONCLUSIONS: Based on these data, this neonatal intubation mouse model may be useful for future mechanistic and genetic studies of FASD and for screening of novel therapeutic agents. PMID- 29336490 TI - Progress towards a methodology for high throughput 3D reconstruction of soot nanoparticles via electron tomography. AB - The aim of this work is to make progress towards the development of 3D reconstruction as a legitimate alternative to traditional 2D characterization of soot. Time constraints are the greatest opposition to its implementation, as currently reconstruction of a single soot particle takes around 5-6 h to complete. As such, the accuracy and detail gains are currently insufficient to challenge 2D characterization of a representative sample (e.g. 200 particles). This work is a consideration of the optimization of the steps included within the computational reconstruction and manual segmentation of soot particles. Our optimal process reduced the time required by over 70% in comparison to a typical procedure, whilst producing models with no appreciable decrease in quality. PMID- 29336491 TI - Effect of sex steroid hormone fluctuations in the pathophysiology of male-retinal pigment epithelial cells. AB - Gender-based differences may influence the occurrence of several ocular conditions suggesting the possibility that fluctuations in sex steroid homeostasis may have direct effects on the eye physiology. Here, we evaluated the effect of sex steroid hormone fluctuations in male retinal pigment epithelial cells, RPEs (ARPE-19). To mimic hormonal fluctuations occurring during aging, we exposed ARPE-19 to acute, prolonged or chronic estradiol, and progesterone challenges. We found that chronic estradiol treatment promotes a remarkable necrosis of RPE cells, and does not affect pRb2/p130 or PAI-2 sub-cellular localization. In contrast, chronic progesterone exposure induces nuclear subcellular rearrangement of pRb2/p130, co-immunolocalization of pRb2/p130 with PAI-2, and accumulation of cells in G2/M phase, which is accompanied by a remarkable reduction of necrosis in favour of apoptosis activation. This study has a high clinical significance since it considers sex steroid fluctuations as inducers of milieu change in the retina able to influence pathological situations occurring with aging in non-reproductive systems such as the eye. Exogenous administration of physiologically significant amounts of sex hormones for long periods of time is a common clinical practice for transgender patients seeking sex reassignment. In particular, our study offers the unique opportunity to unravel the effects of sex hormones, not only in determining gender differences but also in affecting the physiology of non-reproductive systems, such as the eye, in the underserved transgender community. PMID- 29336492 TI - Joint effects of chlorpyrifos and mancozeb on the terrestrial isopod Porcellionides pruinosus: A multiple biomarker approach. AB - The exposure to pesticides by nontarget soil biota has long been regarded as a serious downside of modern agricultural regimes and the subject of heated debate. Of utmost relevance is the exposure to pesticide mixtures because their effects have been shown to not necessarily reflect the individual toxicity of their components, and even the simple addition of effects may lead to consequences not clearly anticipated. In the present study, a multiple biomarker approach was employed to identify the mechanistic and time effects underlying several single and mixture treatments of chlorpyrifos (CPF) and mancozeb (MCZ) in juveniles and adults of the terrestrial isopod Porcellionides pruinosus. The effects of the individual pesticides and the mixtures at recommended doses were mostly transitory under these controlled conditions and one-pulse exposure. Whereas imbalances were identified on detoxification and oxidative stress-related enzymes, the isopods generally showed the ability to recover through the end of the experiment. However, juveniles displayed greater vulnerability than adults. Most of the differences between life stages occurred in energy-related parameters where distinct performances and stress-handling behaviors were observed, suggesting higher metabolic costs to juveniles. Our results stress that understanding the time dependence of the underlying mechanisms governing the joint effects of the pesticides can help in assessing and anticipating the effects of the pesticide mixtures. Moreover, we emphasize the importance of taking life stage-related differences into consideration when evaluating the environmental risks of pesticides and pesticide mixtures. Environ Toxicol Chem 2018;37:1446-1457. (c) 2018 SETAC. PMID- 29336494 TI - Conditional neuromodulation of neurogenic detrusor overactivity using transrectal stimulation in patients with spinal cord injury: A proof of principle study. Knight SL, Edirisinghe N, Leaker B, Susser J, Craggs MD, Neurourol Urodyn. 2017 Jun 30. PMID- 29336493 TI - N-Terminal Cu-Binding Motifs (Xxx-Zzz-His, Xxx-His) and Their Derivatives: Chemistry, Biology and Medicinal Applications. AB - Peptides and proteins with N-terminal amino acid sequences NH2 -Xxx-His (XH) and NH2 -Xxx-Zzz-His (XZH) form well-established high-affinity CuII -complexes. Key examples are Asp-Ala-His (in serum albumin) and Gly-His-Lys, the wound healing factor. This opens a straightforward way to add a high-affinity CuII -binding site to almost any peptide or protein, by chemical or recombinant approaches. Thus, these motifs, NH2 -Xxx-Zzz-His in particular, have been used to equip peptides and proteins with a multitude of functions based on the redox activity of Cu, including nuclease, protease, glycosidase, or oxygen activation properties, useful in anticancer or antimicrobial drugs. More recent research suggests novel biological functions, mainly based on the redox inertness of CuII in XZH, like PET imaging (with 64 Cu), chelation therapies (for instance in Alzheimer's disease and other types of neurodegeneration), antioxidant units, Cu transporters and activation of biological functions by strong CuII binding. This Review gives an overview of the chemical properties of Cu-XH and -XZH motifs and discusses the pros and cons of the vastly different biological applications, and how they could be improved depending on the application. PMID- 29336495 TI - Acute toxicity of 6 neonicotinoid insecticides to freshwater invertebrates. AB - Neonicotinoids are a group of insecticides commonly used in agriculture. Due to their high water solubility, neonicotinoids can be transported to surface waters and have the potential to be toxic to aquatic life. The present study assessed and compared the acute (48- or 96-h) toxicity of 6 neonicotinoids (acetamiprid, clothianidin, dinotefuran, imidacloprid, thiacloprid, and thiamethoxam) to 21 laboratory-cultured and field-collected aquatic invertebrates spanning 10 aquatic arthropod orders. Test conditions mimicked species' habitat, with lentic taxa exposed under static conditions, and lotic taxa exposed under recirculating systems. Median lethal concentrations (LC50s) and median effect concentrations (EC50s; immobility) were calculated and used to construct separate lethal- and immobilization-derived species sensitivity distributions for each neonicotinoid, from which 5th percentile hazard concentrations (HC5s) were calculated. The results showed that the most sensitive invertebrates were insects from the orders Ephemeroptera (Neocloeon triangulifer) and Diptera (Chironomus dilutus), whereas cladocerans (Daphnia magna, Ceriodaphnia dubia) were the least sensitive. The HC5s were compared with neonicotinoid environmental concentrations from Ontario (Canada) monitoring studies. For all neonicotinoids except imidacloprid, the resulting hazard quotients indicated little to no hazard in terms of acute toxicity to aquatic communities in Ontario freshwater streams. For the neonicotinoid imidacloprid, a moderate hazard was found when only invertebrate immobilization, and not lethality, data were considered. Environ Toxicol Chem 2018;37:1430-1445. (c) 2018 SETAC. PMID- 29336496 TI - Donepezil Reverses Dendritic Spine Morphology Adaptations and Fmr1 Epigenetic Modifications in Hippocampus of Adult Rats After Adolescent Alcohol Exposure. AB - BACKGROUND: Adolescent intermittent ethanol (AIE) exposure produces persistent impairments in cholinergic and epigenetic signaling and alters markers of synapses in the hippocampal formation, effects that are thought to drive hippocampal dysfunction in adult rodents. Donepezil (Aricept), a cholinesterase inhibitor, is used clinically to ameliorate memory-related cognitive deficits. Given that donepezil also prevents morphological impairment in preclinical models of neuropsychiatric disorders, we investigated the ability of donepezil to reverse morphological and epigenetic adaptations in the hippocampus of adult rats exposed to AIE. Because of the known relationship between dendritic spine density and morphology with the fragile X mental retardation 1 (Fmr1) gene, we also assessed Fmr1 expression and its epigenetic regulation in hippocampus after AIE and donepezil pretreatment. METHODS: Adolescent rats were administered intermittent ethanol for 16 days starting on postnatal day 30. Rats were treated with donepezil (2.5 mg/kg) once a day for 4 days starting 20 days after the completion of AIE exposure. Brains were dissected out after the fourth donepezil dose, and spine analysis was completed in dentate gyrus granule neurons. A separate cohort of rats, treated identically, was used for molecular studies. RESULTS: AIE exposure significantly reduced dendritic spine density and altered morphological characteristics of subclasses of dendritic spines. AIE exposure also increased mRNA levels and H3-K27 acetylation occupancy of the Fmr1 gene in hippocampus. Treatment of AIE-exposed adult rats with donepezil reversed both the dendritic spine adaptations and epigenetic modifications and expression of Fmr1. CONCLUSIONS: These findings indicate that AIE produces long-lasting decreases in dendritic spine density and changes in Fmr1 gene expression in the hippocampal formation, suggesting morphological and epigenetic mechanisms underlying previously reported behavioral deficits after AIE. The reversal of these effects by subchronic, post-AIE donepezil treatment indicates that these AIE effects can be reversed by up-regulating cholinergic function. PMID- 29336497 TI - Effects of treatment with Maraviroc a CCR5 inhibitor on a human hepatic stellate cell line. AB - After an acute liver damage, tissue regeneration repairs lesions with degradation of deposed fibrotic material, while mechanisms of tissue restoration are persistently activated following several repeated injuries, inducing deposition of extracellular matrix. (ECM). Factors responsible for ECM remodeling have been identified in a pathway involving a family of zinc-dependent enzyme matrix metalloproteinases (MMPs), together with tissue inhibitor of metalloproteinases (TIMPs). Recent experimental models suggested a role of CCR5 receptor in the genesis of liver fibrosis. Drawing from these background we decided to evaluate the effects of the treatment with the CCR5 inhibitor Maraviroc on LX-2, a human hepatic stellate cell line (HSC). Treatment with Maraviroc resulted in a block in S phase of LX-2 cells with increased expression levels of cyclin D1 and p21 while the expression of p53 was reduced. Treatment with Maraviroc was also able to block the accumulation of fibrillar collagens and extracellular matrix proteins (ECM), as demonstrated by the decrease of specific markers as Collagen type I, alpha-SMA, and TGF-beta1. In addition we observed a down regulation of both metalloproteins (MMP-2, MMP-9), used for the degradation of the extracellular matrix and their inhibitors (TIMP-1, TIMP-2). The identification of a compound that may modulate the dynamic of liver fibrosis could be crucial in all chronic liver diseases. Maraviroc could play an important role because, in addition to its own anti-HIV activity, it could reduce the release of pro-inflammatory citokynes implicated in liver fibrogenesis. PMID- 29336498 TI - Erratum for Ann. N.Y. Acad. Sci. 2009. 1173: 670-674. PMID- 29336499 TI - Ecologically Driven Ultrastructural and Hydrodynamic Designs in Stomatopod Cuticles. AB - Ecological pressures and varied feeding behaviors in a multitude of organisms have necessitated the drive for adaptation. One such change is seen in the feeding appendages of stomatopods, a group of highly predatory marine crustaceans. Stomatopods include "spearers," who ambush and snare soft bodied prey, and "smashers," who bludgeon hard-shelled prey with a heavily mineralized club. The regional substructural complexity of the stomatopod dactyl club from the smashing predator Odontodactylus scyllarus represents a model system in the study of impact tolerant biominerals. The club consists of a highly mineralized impact region, a characteristic Bouligand architecture (common to arthropods), and a unique section of the club, the striated region, composed of highly aligned sheets of mineralized fibers. Detailed ultrastructural investigations of the striated region within O. scyllarus and a related species of spearing stomatopod, Lysiosquillina maculate show consistent organization of mineral and organic, but distinct differences in macro-scale architecture. Evidence is provided for the function and substructural exaptation of the striated region, which facilitated redeployment of a raptorial feeding appendage as a biological hammer. Moreover, given the need to accelerate underwater and "grab" or "smash" their prey, the spearer and smasher appendages are specifically designed with a significantly reduced drag force. PMID- 29336500 TI - 9,9'-Bifluorenylidene-Core Perylene Diimide Acceptors for As-Cast Non-Fullerene Organic Solar Cells: The Isomeric Effect on Optoelectronic Properties. AB - Two different non-fullerene small-molecule acceptors, m-PIB and p-PIB, based on 9,9'-bifluorenylidene (BF) and perylene diimide (PDI) were designed and synthesized. Four beta-substituted PDIs were linked to BF in different positions. Based on DFT analysis, derivative p-PIB exhibited reduced intramolecular twisting between the PDI moieties, more delocalized wave function, and sufficiently wider pi-electron delocalization than that of m-PIB. The absorption ability of p-PIB was enhanced due to increased intermolecular interactions. By blending p-PIB with poly{4,8-bis[5-(2ethylhexyl)thiophen-2-yl]benzo[1,2-b:4,5-b']dithiophene-co-3 fluorothieno[3,4-b]-thiophene-2-carboxylate} (PTB7-Th), organic solar cells (OSCs) based on p-PIB obtained a maximum power conversion efficiency of 5.95 % without any treatments. Due to the improved and balanced hole and electron mobilities, the short-circuit current and fill factor of OSCs based on PTB7-Th and p-PIB were significantly increased. The AFM and TEM results revealed that the PTB7-Th:p-PIB film had favorable nanoscale phase separation and formed a bicontinuous interpenetrating network. PMID- 29336501 TI - Uncontrolled asthmatics have increased FceRI+ and TGF-beta-positive MCTC mast cells and collagen VI in the alveolar parenchyma. AB - BACKGROUND: Asthma has been associated with increased collagen deposition in both conducting airways and alveolar parenchyma. Mast cells (MCs) are key effector cells in asthma and have the ability to affect collagen synthesis. However, the link between clinical control and changes in bronchial and alveolar MC phenotypes and specific collagens in controlled and uncontrolled asthma remains unknown. OBJECTIVE: To investigate MC phenotypes in correlation with deposition of specific collagen subtypes in patients with controlled and uncontrolled asthma as well as to healthy controls. METHODS: The tissue expression of IgE+ , FcepsilonRI+ and TGF-beta+ MCs, as well as immunoreactivity of collagen I, III and VI, was assessed using immunohistochemistry on bronchial and transbronchial biopsies from controlled asthmatics (n = 9), uncontrolled asthmatics (n = 16) and healthy controls (n = 8). RESULTS: In the alveolar parenchyma, the total number of MCs, as well as the number of FcepsilonRI+ MCs and pro-fibrotic TGF-beta+ MCTC, was significantly increased in uncontrolled asthma compared to both controlled asthma and healthy controls. The proportion of TGF-beta+ MCTC correlated positively to an increased immunoreactivity of alveolar collagen VI but not collagen I and III. Collagen VI was increased in the alveolar parenchyma of uncontrolled asthmatics compared to controlled asthmatics. Controlled asthmatics had an increased deposition of alveolar collagen I. In bronchi, the immunoreactivity of collagen I was increased in both controlled and uncontrolled asthmatics while collagen III was increased only in controlled asthmatics. CONCLUSIONS: Patients with uncontrolled atopic asthma have an altered pro fibrotic MCTC phenotype in the alveolar parenchyma that is associated with alveolar collagen VI. The present data thus support distal lung mast cell and matrix changes as histopathological features of asthma that may be of particular clinical relevance in patients who have remaining symptoms despite conventional inhaler therapy. PMID- 29336502 TI - Nursing teamwork in a health system: A multisite study. AB - AIM: The aim of this study was to examine how the facets of teamwork exist among nurse-only teams in acute and continuing care settings. BACKGROUND: The health care 'team' conventionally describes the interdisciplinary team in both literature and practice. Nursing-specific teams are rarely considered in the literature. An examination of this specific professional cohort is important to understand how teamwork exists among those who provide the majority of patient care. METHOD: This was a descriptive, comparative, cross-sectional study using the Nursing Teamwork Survey to measure teamwork of nursing-based teams among 1414 participants in multiple acute care environments across a large Midwestern health system. RESULTS: The characteristics of nursing teams were analysed. The results from the subscales within the teamwork model showed that nursing teams had a good understanding of the various roles and responsibilities. However, nurse team members held a more individualistic rather than collective team-oriented mindset. CONCLUSIONS AND IMPLICATIONS FOR NURSING MANAGEMENT: Increased teamwork has a positive effect on job satisfaction, staffing efficiencies, retention and care delivery. Nurse leaders can use the information provided in this study to target the aspects of highly functioning teams by improving team orientation, trust and backup behaviours. PMID- 29336503 TI - Sappinia sp. (Amoebozoa: Thecamoebida) and Rosculus sp. (SAR: Cercozoa) Isolated From King Penguin Guano Collected in the Subantarctic (South Georgia, Salisbury Plain) and their Coexistence in Culture. AB - Two amoeboid organisms of the genera Sappinia Dangeard, 1896 and Rosculus Hawes, 1963 were identified in a sample containing king penguin guano. This sample, collected in the Subantarctic, enlarges the list of fecal habitats known for the presence of coprophilic amoebae. The two organisms were co-isolated and subcultured for over 6 mo, with continuous efforts being invested to separate each one from the mixed culture. In the mixed culture, Rosculus cells were fast growing, tolerated changes in culturing conditions, formed cysts, and evidently were attracted by Sappinia trophozoites. The separation of the Rosculus strain was accomplished, whereas the Sappinia strain remained intermixed with inseparable Rosculus cells. Sappinia cell populations were sensitive to changes in culturing conditions; they improved with reduction of Rosculus cells in the mixed culture. Thick-walled cysts, reportedly formed by Sappinia species, were not seen. The ultrastructure of both organisms was congruent with the currently accepted generic characteristics; however, some details were remarkable at the species level. Combined with the results of phylogenetic analyses, our findings indicate that the ultrastructure of the glycocalyx and the presence/absence of the Golgi apparatus in differential diagnoses of Sappinia species require a critical re-evaluation. PMID- 29336504 TI - Wolbachia-induced transcription factor GATA4 suppresses ovary-specific genes blastoderm-specific protein 25D and imaginal disc growth factor. AB - The endosymbiotic bacterium Wolbachia infects a wide array of insect hosts and has been implicated in a range of biological modifications as a consequence of its infection. Previously, it was shown that the transcription factor GATA4 was significantly induced in Wolbachia wMelPop-CLA strain infected Aedes aegypti whole mosquitoes and cells. Here, we provide evidence that this induction also occurs in mosquito ovaries where the ovary-specific genes blastoderm-specific protein 25D (Bsg25D) and imaginal disc growth factor (Disc) are suppressed by Wolbachia. We further demonstrate that transcriptional depletion of GATA4 results in upregulation of both genes and conversely its overexpression leads to downregulation of the genes, suggesting that Wolbachia-induced GATA4 plays a suppressive regulatory role with regards to Bsg25D and Disc expression in mosquito ovaries. When the Disc gene was silenced in mosquitoes, we did not observe any difference in the number of mature ovarian follicles developed between treatment groups. However, we did find a significant delay in the hatching of eggs that had been laid by Disc knockdown mosquitoes. PMID- 29336505 TI - Signalling transduction events involved in agonist-induced PGE2/EP4 receptor externalization in cultured rat dorsal root ganglion neurons. AB - BACKGROUND: Prostaglandin E2 (PGE2) enriched in inflamed tissues contributes to chronic pain by sensitizing nociceptive dorsal root ganglion (DRG) neurons (nociceptors). Of four PGE2 receptors (EP1-4), EP4 plays a major role in PGE2 induced nociceptor sensitization. We have previously reported that PGE2 or EP4 agonists stimulated EP4 externalization in cultured DRG neurons and this event contributes to nociceptor sensitization. However, the signalling transduction events governing this event remain unknown. METHODS: In this study, using antibody-based externalization assay, we examined EP subtypes and multiple signalling transduction events involved in PGE2-induced EP4 externalization in cultured DRG neurons. RESULTS: In addition to EP4 agonist, EP2 agonist, to a lesser extent, also induced EP4 externalization while EP1 and EP3 agonists had no effect. The extracellular and intracellular calcium chelators, the inhibitors of CaMKII, cAMP, PKA, PKC, PKCepsilon, PLC, MAPKs, PI3K and Akt suppressed agonist induced EP4 externalization. The activator of AC, two PKA-specific cAMP analogues and one Epac-specific cAMP analogue also induced EP4 externalization. ELISA showed that double sequential exposures to EP4 agonists induced a greater release of pain peptide CGRP from cultured DRG neurons than a single exposure, an event blocked by the inhibitor of anterograde transport from ER/Golgi complex to cell surface. CONCLUSIONS: Taken together, these data suggest that mobilization of extracellular and intracellular calcium as well as the activation of CaMKII, cAMP/PKA, cAMP/Epac, PKC/PKCepsilon, MAPKs, PI3K-Akt and PLC signalling transduction pathways are involved in agonist-induced EP4 externalization. Agonist-enhanced EP4 externalization increases EP4 cell surface abundance and activity, thus enhancing nociceptor sensitization. SIGNIFICANCE: This study adds mechanistic information regarding signalling transduction events involved in agonist-induced EP4 cell surface trafficking. EP4 and EP2 (to lesser extent) receptors, extra- and intracellular Ca++ , CaKMII, cAMP, PKA, PKC, PKCepsilon, PLC, MAPK, PI3K and Akt are involved in this event. Agonist-induced EP4 externalization contributes to enhanced nociceptor sensitization. PMID- 29336506 TI - Influence of culture change on the perception of fear and anxiety pathways in Endodontics: A pilot proof of concept study. AB - This study assessed the influence of cultural changes (known as acculturation) on pathways of fear and anxiety in Endodontics. A purposive sampling technique identified patients of Saudi Arabian descent living in Australia and Saudi Arabia. Only patients with root canal fillings (or treatment planned for endodontic treatment) were included. Patients with intellectual disabilities, surgical root therapy, and aged under 20 were excluded. Consenting patients attending the dental clinics of University of Griffith University, Australia and University of Dammam, Saudi Arabia completed the "My Endodontic Fear Questionnaire." Three hundred and twenty-four patients (21-75 years) were included, 90% of participants reported more than one pathway. Australian Saudi Arabians mainly utilised vicarious pathway (94.9%), whilst Saudi Arabians utilised the verbal threat (93.5%) and parental pathway (78.3%). This study highlights the possible role of acculturation on the perception of fear and anxiety in Endodontics; however, further research with other ethnic groups is essential to enhance our understanding. PMID- 29336507 TI - "LEARN"ing what is important to children and young people with intellectual disabilities when they are in hospital. AB - BACKGROUND: The need to review health service provision for children and young people (CYP) with disabilities and their families in the United Kingdom has been expressed in multiple reports: the most consistent message being that services need to be tailored to meet their individual needs. Our aim was to understand the hospital-related needs and experiences of CYP with intellectual disabilities. METHOD: An ethnographic study of a neurosciences ward and outpatient department was conducted within a paediatric tertiary hospital setting. RESULTS: Five themes, developed using the acronym LEARN, explained what is important to CYP with intellectual disabilities in hospital: (i) little things make the biggest difference, (ii) eliminate unnecessary waiting, (iii) avoid boredom, (iv) routine and home comforts are key and (v) never assume. CONCLUSIONS: It is imperative that the present authors continue to challenge the idea that it is acceptable to exclude CYP with intellectual disabilities from research because of their inability to participate. PMID- 29336508 TI - National audit of perinatal HIV infections in the UK, 2006-2013: what lessons can be learnt? AB - OBJECTIVES: The aim of the study was to investigate circumstances surrounding perinatal transmissions of HIV (PHIVs) in the UK. METHODS: The National Study of HIV in Pregnancy and Childhood conducts comprehensive surveillance of all pregnancies in women diagnosed with HIV infection and their infants in the UK; reports of all HIV-diagnosed children are also sought, regardless of country of birth. Children with PHIV born in 2006-2013 and reported by 2014 were included in an audit, with additional data collection via telephone interviews with clinicians involved in each case. Contributing factors for each transmission were identified, and cases described according to main likely contributing factor, by maternal diagnosis timing. RESULTS: A total of 108 PHIVs were identified. Of the 41 (38%) infants whose mothers were diagnosed before delivery, it is probable that most were infected in utero, around 20% intrapartum and 20% through breastfeeding. Timing of transmission was unknown for most children of undiagnosed mothers. For infants born to diagnosed women, the most common contributing factors for transmission were difficulties with engagement and/or antiretroviral therapy (ART) adherence in pregnancy (14 of 41) and late antenatal booking (nine of 41); for the 67 children with undiagnosed mothers, these were decline of HIV testing (28 of 67) and seroconversion (23 of 67). Adverse social circumstances around the time of pregnancy were reported for 53% of women, including uncertain immigration status, housing problems and intimate partner violence. Eight children died, all born to undiagnosed mothers. CONCLUSIONS: Priority areas requiring improvement include reducing incident infections, improving ART adherence and facilitating better engagement in care, with attention to addressing the health inequalities and adverse social situations faced by these women. PMID- 29336509 TI - The investigation of substituent effects on the fragmentation pathways of pentacoordinated phenoxyspirophosphoranes by ESI-MSn. AB - The fragmentation pathways of pentacoordinated phenoxyspirophosphoranes were investigated in the positive mode by electrospray ionization multistage mass spectrometry. The results demonstrate that the sodium adducts of the title compounds undergo two competitive fragmentation pathways, and the fragmentation patterns are heavily dependent on the various substituent patterns at the phenolic group. An electron-withdrawing substituent at the ortho-position always results in the removal of a corresponding phenol analogue, while cleavage by spiroring opening becomes the predominant fragmentation pathway if an electron donating substituent is at the phenolic group. The substituent effects on the competitive fragmentation pathways were further elucidated by theoretical calculations, single crystal structure analysis, and high-resolution mass spectrometry. The results contribute to the understanding of the gas-phase fragmentation reactions and the structure identification of spirophosphorane analogues by electrospray ionization multistage mass spectrometry. PMID- 29336510 TI - Hierarchy of Asymmetry at Work: Chain-Dependent Helix-to-Helix Interactions in Supramolecular Polymers. AB - A detailed investigation of the hierarchy of asymmetry operating in the self assembly of achiral (1) and chiral ((S)-2 and (R)-3) 1,3,5 triphenylbenzenetricarboxamides (TPBAs) is reported. The aggregation of these TPBAs is conditioned by the point chirality at the peripheral side chains for (S) 2 and (R)-3. An efficient helix-to-helix interaction that goes further in the organization of fibrillar bundles is experimentally detected and theoretically supported only for the achiral TPBA 1. The effective interdigitation of the achiral aliphatic side chains produces a social self-sorting to form preferentially heterochiral macromolecular aggregates. PMID- 29336511 TI - Differential visual ornamentation between brood parasitic and parental cuckoos. AB - The evolution of brood parasitism should affect adult phenotypic traits due to sexual selection as well as the parasite-host interactions, although it is rarely focused on. Sexual selection theory predicts extravagant secondary sexual characteristics in brood parasites whereas immature-like modest sexual characteristics in parental species. This is because juvenile-like immature traits can attract mates by exploiting parental care for young (i.e. attraction to young), and because the good parent process, which favours traits that signal parental care ability, would constrain the evolution of costly secondary sexual characteristics due to evolutionary trade-offs between parental investment and sexually selected traits. Using a phylogenetic comparative approach, we studied plumage and bare-part characteristics of adults in relation to brood parasitism in cuckoos (family Cuculidae), in which brood parasitism together with loss of parental care has evolved three times. As predicted, we found that nonparasitic cuckoos had plumage more similar to the juveniles than did brood parasitic cuckoos. Furthermore, nonparasitic cuckoos had a higher probability of having additional bare skin, that is a seemingly less costly, hatchling-like trait, than did brood parasitic cuckoos. This finding further supports the link between parental care and sexual selection, although the influence of a parasite-host interaction cannot be excluded. The analysis of evolutionary pathways suggested interdependent evolution of additional bare skin and brood parasitism. Brood parasitism together with the loss of parental care may prevent the maintenance of a modest phenotype similar to the young, and vice versa in some cases. PMID- 29336512 TI - Using field data to quantify chemical impacts on wildlife population viability. AB - Environmental pollution is an important driver of biodiversity loss. Yet, to date, the effects of chemical exposure on wildlife populations have been quantified for only a few species, mainly due to a lack of appropriate laboratory data to quantify chemical impacts on vital rates. In this study, we developed a method to quantify the effects of toxicant exposure on wildlife population persistence based on field monitoring data. We established field-based vital-rate response functions for toxicants, using quantile regression to correct for the influences of confounding factors on the vital rates observed, and combined the response curves with population viability modelling. We then applied the method to quantify the impact of DDE on three bird species: the White-tailed Eagle, Bald Eagle, and Osprey. Population viability was expressed via five population extinction vulnerability metrics: population growth rate (r1 ), critical patch size (CPS), minimum viable population size (MVP), probability of population extirpation (PE), and median time to population extirpation (MTE). We found that past DDE exposure concentrations increased population extirpation vulnerabilities of all three bird species. For example, at DDE concentrations of 25 mg/kg wet mass of egg (the maximum historic exposure concentration reported in literature for the Osprey), r1 became small (White-tailed Eagle and Osprey) or close to zero (Bald Eagle), the CPS increased up to almost the size of Connecticut (White tailed Eagle and Osprey) or West Virginia (Bald Eagle), the MVP increased up to approximately 90 (White-tailed Eagle and Osprey) or 180 breeding pairs (Bald Eagle), the PE increased up to almost certain extirpation (Bald Eagle) or only slightly elevated levels (White-tailed Eagle and Osprey) and the MTE became within decades (Bald Eagle) or remained longer than a millennium (White-tailed Eagle and Osprey). Our study provides a method to derive species-specific field based response curves of toxicant exposure, which can be used to assess population extinction vulnerabilities and obtain critical levels of toxicant exposure based on maximum permissible effect levels. This may help conservation managers to better design appropriate habitat restoration and population recovery measures, such as reducing toxicant levels, increasing the area of suitable habitat or reintroducing individuals. PMID- 29336513 TI - Palladium-Catalyzed Asymmetric Aminohydroxylation of 1,3-Dienes. AB - A PdII -catalyzed asymmetric aminohydroxylation of 1,3-dienes with N-tosyl-2 aminophenols was developed by making use of a chiral pyridinebis(oxazoline) ligand. The highly regioselective reaction provides direct and efficient access to chiral 3,4-dihydro-2H-1,4-benzoxazines in high yield and enantioselectivity (up to 96:4 e.r.). The reaction employs readily available N-tosyl-2-aminophenols as a unique aminohydroxylation reagent and is complementary to known asymmetric aminohydroxylation methods. PMID- 29336514 TI - Machine-learned analysis of quantitative sensory testing responses to noxious cold stimulation in healthy subjects. AB - BACKGROUND: Pain in response to noxious cold has a complex molecular background probably involving several types of sensors. A recent observation has been the multimodal distribution of human cold pain thresholds. This study aimed at analysing reproducibility and stability of this observation and further exploration of data patterns supporting a complex background. METHOD: Pain thresholds to noxious cold stimuli (range 32-0 degrees C, tonic: temperature decrease -1 degrees C/s, phasic: temperature decrease -8 degrees C/s) were acquired in 148 healthy volunteers. The probability density distribution was analysed using machine-learning derived methods implemented as Gaussian mixture modeling (GMM), emergent self-organizing maps and self-organizing swarms of data agents. RESULTS: The probability density function of pain responses was trimodal (mean thresholds at 25.9, 18.4 and 8.0 degrees C for tonic and 24.5, 18.1 and 7.5 degrees C for phasic stimuli). Subjects' association with Gaussian modes was consistent between both types of stimuli (weighted Cohen's kappa = 0.91). Patterns emerging in self-organizing neuronal maps and swarms could be associated with different trends towards decreasing cold pain sensitivity in different Gaussian modes. On self-organizing maps, the third Gaussian mode emerged as particularly distinct. CONCLUSION: Thresholds at, roughly, 25 and 18 degrees C agree with known working temperatures of TRPM8 and TRPA1 ion channels, respectively, and hint at relative local dominance of either channel in respective subjects. Data patterns suggest involvement of further distinct mechanisms in cold pain perception at lower temperatures. Findings support data science approaches to identify biologically plausible hints at complex molecular mechanisms underlying human pain phenotypes. SIGNIFICANCE: Sensitivity to pain is heterogeneous. Data-driven computational research approaches allow the identification of subgroups of subjects with a distinct pattern of sensitivity to cold stimuli. The subgroups are reproducible with different types of noxious cold stimuli. Subgroups show pattern that hints at distinct and inter-individually different types of the underlying molecular background. PMID- 29336515 TI - Expectations and experiences of patients with osteoarthritis undergoing total joint arthroplasty: An integrative review. AB - BACKGROUND: The effectiveness of educational interventions for osteoarthritic patients undergoing total joint arthroplasty remains inconclusive. It is essential to understand the educational needs of these patients from their perspectives. AIM: The aim of this study was to systematically summarize and synthesize osteoarthritic patients' expectations and experiences in undergoing total joint arthroplasty to identify their educational needs. DESIGN: An integrative review was conducted. METHODS: Twenty studies (13 qualitative and 7 quantitative), published between 2006 and 2016, were independently appraised by 2 reviewers using the Critical Appraisal Skills Programme checklist for qualitative studies and the Joanna Briggs Institute Critical Appraisal Tools for quantitative studies. Data were analysed using thematic analysis, and the findings were synthesized in a narrative summary. RESULTS: Six themes describing patients' preoperative and post-operative educational needs were identified: (1) preoperative anxiety, (2) unrealistic expectations of recovery, (3) post operative pain, (4) regaining functional abilities, (5) physical and psychological sense of loss, and (6) lack of continuity of care. CONCLUSION: This review is the first to capture the osteoarthritic patients' educational needs from their perspectives. The biopsychosocial model can address the multidimensionality (biological, psychological, and social) of patients' educational needs. A robust infrastructure supporting interprofessional collaborative practice and continuity of care should be adopted to enhance current educational efforts. PMID- 29336516 TI - Neglect of attention to reproductive health in women with HIV infection: contraceptive use and unintended pregnancies in the Swiss HIV Cohort Study. AB - OBJECTIVES: Women with HIV infection are mainly of reproductive age and need safe, effective and affordable contraception to avoid unintended pregnancies. The aim of this study was to evaluate contraceptive use and unintended pregnancies in this population in Switzerland. METHODS: A self-report anonymous questionnaire on contraceptive methods, adherence to them, and unintended pregnancies was completed by women included in the Swiss HIV Cohort Study (SHCS) between November 2013 and June 2014. Sociodemographic characteristics and information related to combined antiretroviral therapy and HIV disease status were obtained from the SHCS database. RESULTS: Of 462 women included, 164 (35.5%) reported not using any contraception. Among these, 65 (39.6%) reported being sexually active, although 29 (44.6%) were not planning a pregnancy. Of 298 women using contraception, the following methods were reported: condoms, 219 (73.5%); oral hormonal contraception, 32 (10.7%); and intrauterine devices, 28 (9.4%). Among all women on contraception, 32 (10.7%) reported using more than one contraceptive method and 48 (16%) had an unintended pregnancy while on contraception (18, condoms; 16, oral contraception; four, other methods). Of these, 68.1% terminated the pregnancy and almost half (43.7%) continued using the same contraceptive method after the event. CONCLUSIONS: Family planning needs in HIV-positive women are not fully addressed because male condoms remained the predominant reported contraceptive method, with a high rate of unintended pregnancies. It is of utmost importance to provide effective contraception such as long-acting reversible contraceptives for women living with HIV. PMID- 29336518 TI - Seeded Polymerization through the Interplay of Folding and Aggregation of an Amino-Acid-based Diamide. AB - Amino acid based diamides are widely used as a substructure in supramolecular polymers and are also key components of polypeptides that help to understand protein folding. The interplay of folding and aggregation of a diamide was used to achieve seed-initiated supramolecular polymerization. For that purpose, a pyrene-substituted diamide was synthesized in which pyrene is used as a tracer to monitor the supramolecular polymerization. Thermodynamics and time-dependent studies revealed that the folding of the diamide moiety, via the formation of intramolecular hydrogen bonds, effectively prevents a spontaneous nucleation that leads to supramolecular polymerization. Under such out-of-equilibrium conditions, the addition of seeds successfully initiates the supramolecular polymerization. These results demonstrate the utility of such amino acid based diamides in programmable supramolecular polymerizations. PMID- 29336517 TI - Environmental Sequencing Fills the Gap Between Parasitic Haplosporidians and Free living Giant Amoebae. AB - Class Ascetosporea (Rhizaria; Endomyxa) comprises many parasites of invertebrates. Within this group, recent group-specific environmental DNA (eDNA) studies have contributed to the establishment of the new order Mikrocytida, a new phylogeny and characterization of Paramyxida, and illuminated the diversity and distribution of haplosporidians. Here, we use general and lineage-specific PCR primers to investigate the phylogenetic "gap" between haplosporidians and their closest known free-living relatives, the testate amoeba Gromia and reticulate amoeba Filoreta. Within this gap are Paradinium spp. parasites of copepods, which we show to be highly diverse and widely distributed in planktonic and benthic samples. We reveal a robustly supported radiation of parasites, ENDO-3, comprised of Paradinium and three further clades (ENDO-3a, ENDO-3b and SPP). A further environmental group, ENDO-2, perhaps comprising several clades, branches between this radiation and the free-living amoebae. Early diverging haplosporidians were also amplified, often associated with bivalves or deep-sea samples. The general primer approach amplified an overlapping set of novel lineages within ENDO-3 and Haplosporida, whereas the group-specific primer strategy, targeted to amplify from the earliest known divergent haplosporidians to Gromia, generated greater sequence diversity across part of this phylogenetic range. PMID- 29336519 TI - Management of venous thromboembolism: Time to measure our performance. PMID- 29336520 TI - Near-Infrared Triggered Decomposition of Nanocapsules with High Tumor Accumulation and Stimuli Responsive Fast Elimination. AB - A near-infrared (NIR) induced decomposable polymer nanocapsule is demonstrated. The nanocapsules are fabricated based on layer-by-layer co-assembly of azobenzene functionalized polymers and up/downconversion nanoparticles (U/DCNPs). When the nanocapsules are exposed to 980 nm light, ultraviolet/visible photons emitted by the U/DCNPs can trigger the photoisomerization of azobenzene groups in the framework. The nanocapsules could decompose from large-sized nanocapsule to small U/DCNPs. Owing to their optimized original size (ca. 180 nm), the nanocapsules can effectively avoid biological barriers, provide a long blood circulation (ca. 5 h, half-life time) and achieve four-fold tumor accumulation. It can fast eliminate from tumor within one hour and release the loaded drugs for chemotherapy after NIR-induced dissociation from initial 180 nm capsules to small 20 nm U/DCNPs. PMID- 29336521 TI - Identification and quantification of VOCs by proton transfer reaction time of flight mass spectrometry: An experimental workflow for the optimization of specificity, sensitivity, and accuracy. AB - Proton transfer reaction time of flight mass spectrometry (PTR-ToF-MS) is a direct injection MS technique, allowing for the sensitive and real-time detection, identification, and quantification of volatile organic compounds. When aiming to employ PTR-ToF-MS for targeted volatile organic compound analysis, some methodological questions must be addressed, such as the need to correctly identify product ions, or evaluating the quantitation accuracy. This work proposes a workflow for PTR-ToF-MS method development, addressing the main issues affecting the reliable identification and quantification of target compounds. We determined the fragmentation patterns of 13 selected compounds (aldehydes, fatty acids, phenols). Experiments were conducted under breath-relevant conditions (100% humid air), and within an extended range of reduced electric field values (E/N = 48-144 Td), obtained by changing drift tube voltage. Reactivity was inspected using H3 O+ , NO+ , and O2+ as primary ions. The results show that a relatively low (<90 Td) E/N often permits to reduce fragmentation enhancing sensitivity and identification capabilities, particularly in the case of aldehydes using NO+ , where a 4-fold increase in sensitivity is obtained by means of drift voltage reduction. We developed a novel calibration methodology, relying on diffusion tubes used as gravimetric standards. For each of the tested compounds, it was possible to define suitable conditions whereby experimental error, defined as difference between gravimetric measurements and calculated concentrations, was 8% or lower. PMID- 29336522 TI - Continued root maturation despite persistent apical periodontitis of immature permanent teeth after failed regenerative endodontic therapy. AB - Three immature permanent teeth with pulp necrosis and apical periodontitis were treated with regenerative endodontic therapy (RET), which included root canal disinfection with sodium hypochlorite irrigation, intra-canal medication with calcium hydroxide paste, 17% EDTA rinse, induction of periapical bleeding into the canal, collagen matrix and MTA coronal seal, and composite resin restoration of access cavities. After different periods of follow-up, it was observed that continued root maturation, especially apical closure occurred despite persistent apical periodontitis of immature permanent teeth after failed RET. This finding is of interest as the secondary goal of further root maturation occurred despite failure of the primary goal of elimination of clinical symptom/sign and periapical inflammation. The possible biological mechanisms that could allow for further root maturation to occur in spite of persistent root canal infection of immature permanent teeth are discussed. Based on these observations, the biology of wound healing of immature permanent teeth after injury is not fully understood and should be further investigated. This case report demonstrates that whilst further root maturation is considered a successful outcome for teeth treated with RET, the primary objective must be the resolution of the signs and symptoms of apical periodontitis. PMID- 29336523 TI - Quadratus lumborum block in management of severe pain after uterine artery embolization. AB - BACKGROUND AND OBJECTIVES: The quadratus lumborum (QL) block has been widely used for acute postoperative pain management after numerous surgical procedures including urological, abdominal, gynaecological and orthopaedic surgical procedures. The local anaesthetic spread in this area can provide unilateral sensory block in T6-L2 dermatomes. We performed bilateral quadratus lumborum block for the management of acute pain after the uterine artery embolization (UAE). METHODS: A 43-year-old woman was admitted to the gynaecology department of Mother and Child Hospital, University Medical Center, for uterine artery embolization. Shortly, after successful completion of the UAE procedure, the patient began to complain of severe pain in the lower abdomen rated as a 9 on a verbal analogue scale (VAS) of 0-10. Intravenous tramadol 100 mg was infused over 30 min with minimal reduction in pain. Trimeperidine 20 mg was then infused over 30 min. Pain scores, however, remained 7-8/10 on the VAS. It was therefore decided to place a bilateral single-shot ultrasound-guided quadratus lumborum block. RESULTS: The procedure was well tolerated and brought notable pain relief. VAS declined from 8/10 to 5/10 after 30 min and to 3/10 at 60 min. Over the ensuing 24 h, VAS pain intensity remained 2-3/10. No further analgesics were necessary. CONCLUSION: A randomized control clinical trial is warranted to assess the efficacy of QL blockade and to compare it with other analgesic options in uterine artery embolization. Bilateral quadratus lumborum blockade may be an excellent pain control option after uterine artery embolization. SIGNIFICANCE: Uterine artery embolization is associated with significant postprocedural pain which can prove difficult to manage with opioids. Bilateral quadratus lumborum block may be an excellent pain control option - one that might significantly reduce not only pain, but also the need for opioids and perhaps even the need for hospitalization. PMID- 29336524 TI - Human Intestinal Dendritic Cells in Inflammatory Bowel Diseases. AB - Inflammatory bowel disease (IBD), including Crohn's disease and ulcerative colitis, is a serious, costly, and persistent health problem with an estimated prevalence in Western countries around 0.5% of the general population; its socioeconomic impact is comparable with that for chronic diseases such as diabetes. Conventional treatment involves escalating drug regimens with concomitant side effects followed, in some cases, by surgical interventions, which are often multiple, mainly in Crohn's disease. The goal of finding a targeted gut-specific immunotherapy for IBD patients is therefore an important unmet need. However, to achieve this goal we first must understand how dendritic cells (DC), the most potent antigen present cells of the immune system, control the immune tolerance in the gastrointestinal tract and how their properties are altered in those patients suffering from IBD. In this review, we summarize the current available information regarding human intestinal DC subsets composition, phenotype, and function in the human gastrointestinal tract describing how, in the IBD mucosa, DC display pro-inflammatory properties, which drive disease progression. A better understanding of the mechanisms inducing DC abnormal profile in IBD may provide us with novel tools to perform tissue specific immunomodulation. PMID- 29336525 TI - Complications of curative radiation treatment for early prostate cancer. AB - AIM: To report the incidence of urological complications following curative radiation treatment for early prostate cancer, including minimally invasive urological procedures (MUIP), hospital admissions and open surgical procedures. Second malignancies following radiation are also reported and compared with patients undergoing a prostatectomy. METHODS: Included were patients receiving curative intent external beam radiation treatment for early prostate cancer between January 1, 2002, and December 31, 2009. Medical records were reviewed for baseline characteristics, treatment details and outcomes. Kaplan-Meier methods were used to derive the 5-year cumulative incidence of the urological outcomes and second malignancy. RESULTS: There were 439 patients identified. The median follow-up was 6.96 years. The median age was 69. A total of 56 patients developed a radiation related urological complication, 25 requiring hospital admission. The 5-year cumulative incidence for an MIUP and admission was 3.95% (95% confidence interval (CI), 2.47-6.28) and 2.24% (95% CI, 1.17-4.27), respectively. There were no open surgical procedures. Further malignancy developed in 27 patients during the 5- to 9-year posttreatment period with a cumulative incidence of 10.7% (95% CI, 7.31-15.51). Of the comparator prostatectomy group, of the 265 eligible patients analyzed, 19 patients developed a second malignancy with a cumulative incidence of 9.92% (95% CI, 6.28-15.48). On log-rank testing, there was no difference in the cumulative incidence rates of second malignancy between 5 and 9 years, following respective treatments (P = 0.8554). CONCLUSIONS: The incidence of MUIP, hospital admissions and open surgical procedures following radiation is reassuringly low. The second malignancy rates are also low and similar to the rates in patients treated with a prostatectomy. PMID- 29336526 TI - Human Milk Oligosaccharides as Promising Antivirals. AB - Human milk oligosaccharides (HMOs) are diverse unconjugated carbohydrates that are highly abundant in human breast milk. These glycans are investigated in the context of exhibiting multiple functions in infant growth and development. They seem to provide protection against infectious diseases, including a number of poorly manageable viral infections. Although the potential mechanism of the HMO antiviral protection is rather broad, much of the current experimental work has focused on studying of HMO antiadhesive properties. HMOs may mimic structures of viral receptors and block adherence to target cells, thus preventing infection. Still, the potential of HMOs as a source for new antiviral drugs is relatively unexploited. This can be partly attributed to the extreme complexity of the virus carbohydrate interactions and technical difficulties in HMO isolation, characterization, and manufacturing procedures. Fortunately, we are currently entering a period of major technological advances that have enabled deeper insights into carbohydrate mediated viral entry, rational selection of HMOs as anti-entry inhibitors, and even evaluation of individual synthetic HMO structures. Here, we provide an up-to-date review on glycan binding studies for rotaviruses, noroviruses, influenza viruses, and human immunodeficiency viruses. We also discuss the preventive and therapeutic potential of HMOs as anti-entry inhibitors and address challenges on the route from fundamental studies to clinical trials. PMID- 29336527 TI - Sustainable Synthesis of Oxalic and Succinic Acid through Aerobic Oxidation of C6 Polyols Under Mild Conditions. AB - The sustainable chemical industry encompasses a shift from the use of fossil carbon to renewable carbon. The synthesis of chemicals from nonedible biomass (cellulosic or oil) represents one of the key steps for "greening" the chemical industry. In this paper, we report the aerobic oxidative cleavage of C6 polyols (5-HMF, glucose, fructose and sucrose) to oxalic acid (OA) and succinic acid (SA) in water under mild conditions using M@CNT and M@NCNT (M=Fe, V; CNT=carbon nanotubes; NCNT=N-doped CNT), which, under suitable conditions, were recoverable and reusable without any loss of efficiency. The influence of the temperature, O2 pressure (PO2 ), reaction time and stirring rate are discussed and the best reaction conditions are determined for an almost complete conversion of the starting material and a good OA yield of 48 %. SA and formic acid were the only co-products. The former could be further converted into OA by oxidation in the presence of formic acid, resulting in an overall OA yield of >62 %. This process was clean and did not produce organic waste nor gas emissions. PMID- 29336528 TI - Synthesis of Functionalized (eta5 -Indenyl)rhodium(III) Complexes and Their Application to C-H Bond Functionalization. AB - It has been established that reductive complexation of functionalized benzofulvenes, which are readily prepared from commercially available indene and 2-methylindene, with RhCl3 in ethanol affords the corresponding indenyl rhodium(III) dichlorides bearing substituents at the 1- (H or CO2 Et), 2- (H or Me), and 3- [CH2 Ph or CH2 (2-MeOC6 H4 )] positions. The indenyl-rhodium(III) complexes bearing one ethoxycarbonyl group showed higher thermal stability and regioselectivity than our previously reported CpE RhIII complex toward the oxidative [3+2] annulation of acetanilides with internal alkynes. PMID- 29336529 TI - High prevalence of reduced thrombin generation and/or decreased platelet response in women with unexplained heavy menstrual bleeding. AB - INTRODUCTION: Heavy menstrual bleeding (HMB) is a condition that affects 20%-30% of women of reproductive age. HMB has a multifactorial pathophysiology, which is incompletely understood. HMB symptoms are very common in patients with established haemostasis defects, likewise, women with heavy menstrual bleeding have a higher prevalence of impaired Von Willebrand factor (VWF) levels and function, thrombocytopenia, impaired platelet function and impaired coagulation. The aim of this study was to quantify the prevalence of impaired platelet function, impaired coagulation and reduced VWF activity in patients with HMB. METHODS: We have used thrombin generation (TG), a flow cytometry-based platelet function test and a flow cytometry-based VWF function test to study haemostasis in 58 women (median age: 48.4 years, range 40-60 years) with HMB. In addition, we determined VWF antigen levels and VWF ristocetin co-factor activity in platelet poor plasma. Reference ranges of platelet function were measured in whole blood of 123 healthy volunteers, while reference ranges of TG were determined in platelet-poor plasma (PPP) of 126 healthy volunteers. RESULTS: Fourteen (24%) patients with HMB had impaired platelet function and 17 (29.3%) patients had impaired coagulation. Five patients (8.6%) had both impaired platelet function and impaired coagulation. Only 2 (3.4%) patients had an impaired VWF function or levels; one of them was in combination with impaired coagulation. CONCLUSION: Our approach in women with HMB using a high precision platelet function test in combination with thrombin generation showed impaired coagulation or impaired platelet function in more than 40% of the patients. PMID- 29336530 TI - Cut-point for Ki-67 proliferation index as a prognostic marker for glioblastoma. AB - INTRODUCTION: Ki-67 proliferation index (Ki-67 index) is used to quantify cell proliferation during histopathological assessment of various tumors including glioblastoma (GB). AIM: We aimed to assess correlation between Ki-67 index and overall survival in patients with GB and determine a cut-point for Ki-67 index that predicts for poorer survival. METHOD: Records of adult patients diagnosed with GB on histopathological specimens at a tertiary cancer center in Sydney between 1 January 2002 and 30 July 2012 were retrieved. Specimens of these patients were examined for quantification of Ki-67 staining by two independent pathologists. Patient, disease, treatment, and survival data were collected from hospital and cancer care service records. Statistical analysis was performed using proportional hazards models, Kaplan-Meier curves, and the minimum P-value approach. RESULT: Of the eligible 71 patients, 58% were males with median age of 58 (range 18-87). Seventy-three percent of patients were of ECOG performance status 0-1. There was a statistically significant correlation between Ki-67 index and overall survival. In patients with Ki-67 > 22% (n = 36), 5-year survival was approximately 30% compared to 5% in those with Ki-67 <= 22% (n = 35; log-rank P value = 0.04; hazard ratio (HR) = 0.53; 95% confidence intervals (CI), 0.29 0.97). CONCLUSION: This study demonstrates a positive correlation between Ki-67 index and overall survival in patients with GB. Percentage staining of Ki-67 < 22% appears to predict for poorer survival in GB. PMID- 29336531 TI - Nanobiotechnology of Carbon Dots: A Review. AB - In recent years, carbon dots (CDs) have gained increasing attention owing to their unique properties and enormous potential for several biomedical and technological applications. CDs are biocompatible, have a small size with a relatively large surface area, are photostable, and have customizable photoluminescence properties. This review is divided into the following discussions of CDs: general definitions; an overview of recent reviews; methods of green and classical synthesis; applications in bioimaging, involving supercapacitors, nanocarriers and nanomedicine; toxicological evaluations (including cytotoxic, genotoxic and anti-cancer properties of CDs); their conjugation with enzymes, biosensors, and cell labeling. Finally the remaining drawbacks and challenges of CD applications are highlighted. In this context, this article aims to provide critical insight and inspire further developments in the synthesis and application of CDs. PMID- 29336532 TI - Nanoscale Photodynamic Agents for Colorectal Cancer Treatment: A Review. AB - Colorectal cancer is the most common form of gastroenteric cancer worldwide. Photodynamic therapy is emerging as an attractive method to treat cancers. Candidate targets of photodynamic therapy include epidermal growth factor receptors, cholesterol and low-density lipoprotein, estrogen receptors, the nucleus and DNA, folic acid receptors, cholecystokinin A receptors, lectin saccharide receptors, and tumor-specific antibodies. Specifically, in colorectal tumors, anti-DR5 antibody and cancer-specific antibody moieties are involved. Cancer cells incorporate greater quantities of sugars, and glycoconjugated photosensitizer has remarkable internalization and cytotoxicity in colon/colorectal cancer cells. Simultaneously, to circumvent the bio-distribution limitation, other molecules, including lectins, Hyaluronic acid, and peptides, have also been considered for colorectal cancer. Other novel strategies indirectly targeting colorectal cancer include pH-responsive PS, enzymatically activated photosensitization, and cancer-suppressing immune cells, mainly macrophages. Recently, nanoparticles have gained attention as a versatile platform for multi-functional photodynamic therapy. In this review, we summarize the targeting strategies investigated and highlight the potential of nanoparticles for target photodynamic therapy in colorectal cancer. PMID- 29336533 TI - Targeted Nanocurcumin Therapy Using Annexin A2 Anitbody Improves Tumor Accumulation and Therapeutic Efficacy Against Highly Metastatic Breast Cancer. AB - A major challenge in pharmaceutical research is effective targeting strategies to their sites of action. Emerging knowledge and the current progress in nanotechnology based delivery systems has opened up exciting ways towards successful targeted nanodelivery systems. For cancer therapy, nanoparticle-based drug formulations hold several advantages over free drugs, including improved pharmacokinetics, enhanced tumor accumulation, reduced systemic exposure and side effects and better patient compliance. The goal of this study was to validate the in vivo targeting potential and evaluate the combinatorial therapeutic potential of novel Annexin A2 (AnxA2) antibody-conjugated curcumin loaded poly(lactic-co glycolic acid) (PLGA) nanoparticles (AnxA2-CPNP) against metastatic breast cancer. As a first step, we demonstrated that the cell-surface expression of AnxA2 is increases during breast cancer progression with very high expression in highly malignant cancer cells and basal expression in non-malignant cells. This confirmed AnxA2 as an excellent target for targeting our curcumin nanoparticles. Our results indicate that AnxA2-CPNP showed increased uptake in highly metastatic breast cancer cells than untargeted nanoparticles due to the differential AnxA2 expression. Cell viability, plasmin generation and wound healing assays reveal that AnxA2-CPNPs effectively inhibited cell proliferation, invasion and migration, key elements for cancer growth and metastasis. Further, angiogenesis assay illustrated that AnxA2-CPNPs decreased the formation of tube capillaries, thus inhibiting neoangiogenesis, a critical element in tumor growth. Live animal imaging demonstrated that AnxA2-PNPs and AnxA2-CPNPs effectively targeted and accumulated in the tumor as seen by the increased fluorescence intensity on the live scans. Xenograft studies in mice showed significant regression of breast tumor as a result of both effective targeting, accumulation and sustained release of curcumin in the tumor. In conclusion, AnxA2-CPNPs were successfully validated for their breast tumor targeting potential and its improved therapeutic efficacy against metastatic breast cancer. PMID- 29336534 TI - Folic Acid Functionalized gamma-Cyclodextrin C60, A Novel Vehicle for Tumor Targeted Drug Delivery. AB - Folic acid (FA)-gamma cyclodextrin (gamma CD)-C60 was synthesized in this study as a carrier for tumor-targeted drug delivery to enhance the anticancer effect of carboplatin (CBP). FA-gamma CD and C60-CBP were prepared and C60-CBP was then entrapped into FA-gamma CD through host-guest effect. FA-gamma CD-C60 significantly increased the intracellular uptake and release of CBP, thereby providing higher cytotoxicity against the HeLa cells with high expression of folate receptor (FR). In vivo experiments revealed that FA-gamma CD-C60-CBP had more significant anticancer effects than CBP alone, showing no obvious toxic effects on zebrafish at concentration as high as 500 MUg/mL. These results suggest that FA-gamma CD-C60 may provide an effective strategy for administration of antineoplastics, with great promise in future targeted therapy for cancers. PMID- 29336536 TI - Imprecise Percentages. PMID- 29336535 TI - Construction of Functional Targeting Daunorubicin Liposomes Used for Eliminating Brain Glioma and Glioma Stem Cells. AB - The highly infiltrative nature of brain glioma makes total surgical removal of cancerous cells virtually impossible. Regular chemotherapy plays an important role in eradicating the residual cancer cells but is ineffective in treating brain glioma due to the hindrance of drug penetration into the tumor site by the blood brain barrier (BBB) and the regeneration of cancer cells by glioma stem cells (GSCs). In this study, functional targeting daunorubicin liposomes were developed by modifying the liposomes with distearoylphosphatidylethanolamine polyethylene glycol-polyethylenimine (DSPE-PEG2000PEI600 and a lipid-glucose derivative (DSPE-PEG2000-GLU). The studies were performed in brain glioma and glioma stem cells in vitro and in brain glioma-bearing mice inoculated with the glioma stem cells. The results showed that the functional targeting daunorubicin liposomes were able to significantly transfer across the BBB and exhibited an obvious efficacy in killing glioma and glioma stem cells in mice. The action mechanisms of the functional targeting daunorubicin liposomes were related to their properties: long-duration circulation in the blood system, transport capability across the BBB, concentrated accumulation in the brain glioma site, and increased internalization by malignant cells and their mitochondria. This functional drug formulation showed anticancer efficacy through a direct cytotoxic effect and an apoptosis-inducing effect through the apoptotic signaling pathways in the cytoplasm and mitochondria of the cells. As a chemotherapy strategy for treating brain glioma, functional targeting daunorubicin liposomes have the potential to eliminate brain glioma along with glioma stem cells. PMID- 29336538 TI - Error in Abstract. PMID- 29336537 TI - Polymer-Encapsulated Abeta Peptide Fragments as an Oligomeric-Specific Vaccine for Alzheimer's Disease. AB - Vaccination is regarded as one of the most cost-effective and reliable methods for combating disease. We have developed a new method for an oligomeric Abeta specific AD vaccination using polymer micelle-encapsulated peptide fragments, which overcome many problems of vaccination associated with the direct use of the Abeta1-42 peptide. We studied different encapsulated forms of shortened Abeta peptides with and without the entire T cell epitope in an APP/PS1 mouse model. After two inoculations with encapsulated Abeta fragments, antibodies were produced in all mice with antibody titer greater than 1:12,800. No anti-polymer antibodies were detected after five inoculations, and none of the injected mice showed any adverse effects throughout experimentation. Anti-Abeta antibodies from our polymer-encapsulated vaccine were able to bind to A plaques in the brain of our mice, and were able to specifically recognize oligomeric Abeta. Our results suggest that the safety and efficacy issues previously encountered in other Abeta vaccination trials may be successfully addressed by using micelle-encapsulated peptides. These shorter Abeta fragments are also easier to synthesize and more cost-effective than the highly hydrophobic full-length Abeta1-42 peptide. PMID- 29336539 TI - Chitosan-Coated Poly(lactic-co-glycolic acid)-Diiodinated boron-Dipyrromethene Nanoparticles Improve Tumor Selectivity and Stealth Properties in Photodynamic Cancer Therapy. AB - Their limited solubility and lack of tumor selectivity limit the clinical usefulness of photosensitizers. Various nanostructures have been evaluated as delivery agents for photosensitizers in an attempt to overcome these obstacles, but these have typically been limited by premature clearance by the reticuloendothelial system (RES) and non-specific interactions with normal cells that result from their hydrophobic surfaces. In this study, we report our attempt to circumvent these problems by applying a low molecular weight chitosan (25 kDa) coating to a poly(lactic-co-glycolic acid)-diiodinated boron dipyrromethene (PLGA I2BODIPY) nanoparticle-photosensitizer construct. This chitosan coating increased the hydrophilicity and decreased the charge of PLGA-I2 BODIPY nanoparticle surfaces without changing their size (average diameter 147 nm) or morphology. In comparison to the uncoated controls, the coated nanoparticles reduced the burst release of I2BODIPY, increased its predominantly lysosomal cellular uptake, and enhanced its photocytotoxicity in 4T1 murine and MDA-MB-231 human breast cancer cells. PLGA-Chitosan-I2BODIPY nanoparticles also showed reduced serum protein adsorption and macrophage uptake compared to the uncoated controls. In 4T1 tumor bearing mice, the PLGA-Chitosan-I2BODIPY nanoparticles exhibited better tumor targeting selectivity and significantly reduced accumulation in RES tissues, including the lymph nodes, spleen and liver (by 10.2-, 2.1- and 1.3-fold, respectively), and in non-tumorous organs, such as the skin and eyes (by 22.7- and 4-fold, respectively). The PLGA-Chitosan-I2BODIPY and PLGA-I2BODIPY nanoparticles also showed increased anticancer efficacy compared to free I2BODIPY. These results suggest that the low molecular weight chitosan (25 kDa) is a promising nanoparticle "stealth coating" that improves tumor selectivity. PMID- 29336540 TI - Silicene on Monolayer PtSe2: From Strong to Weak Binding via NH3 Intercalation. AB - We study the properties of silicene on monolayer PtSe2 by first-principles calculations and demonstrate a much stronger interlayer interaction than previously reported for silicene on other semiconducting substrates. This fact opens the possibility of a direct growth. A band gap of 165 meV results from inversion symmetry breaking and large spin-splittings in the valence and conduction bands from proximity to monolayer PtSe2 and its strong spin-orbit coupling. It is also shown that the interlayer interaction can be effectively reduced by intercalating NH3 molecules between silicene and monolayer PtSe2 without inducing charge transfer or defect states near the Fermi energy. A small NH3 diffusion barrier makes intercalation a viable experimental approach to control the interlayer interaction. PMID- 29336541 TI - Rapid Patterning of PDMS Microfluidic Device Wettability Using Syringe-Vacuum Induced Segmented Flow in Nonplanar Geometry. AB - We present a simple and rapid method to spatially pattern the surface wetting properties of PDMS microfluidic devices by layer-by-layer (LbL) deposition of polyelectrolytes using syringe-vacuum-induced segmented flow in nonplanar geometry. Our technique offers selective surface modification in microfluidic chips with multiple flow-focusing junctions, enabling production of monodisperse double- and triple-emulsion drops. PMID- 29336542 TI - Humidity-Sensing Performance of 3DOM WO3 with Controllable Structural Modification. AB - The development of humidity sensors with excellent sensing performance is a great challenge in the field of material chemistry. Here, we synthesized 3DOM WO3 nanomaterials through a poly(methyl methacrylate) template method, and first, we applied it to humidity measurement. For the goal of better sensing performance, the structural modification of Li/K-codoping was adopted, and the test results showed that Li/K-codoped 3DOM WO3 possessed highly improved humidity sensing performances, such as high response, low-humidity hysteresis, good long-term stability, great repeatability, decent response, and recovery properties. To deeply understand the great effect of Li/K-codoping on sensing performance, the pure, Li-monodoped, and Li/K-codoped 3DOM WO3-based humidity sensors were compared, and we found that the structure defects and adsorbed oxygen as well as the co-effect of Li/K dopants were key factors for the improved sensing performance. Additionally, a possible humidity sensitive mechanism was proposed to further study the promotion effect of Li/K-codoping on humidity sensing process. PMID- 29336543 TI - Histone Deacetylase 11 Is a Fatty-Acid Deacylase. AB - Histone deacetylase 11 (HDAC11) is a sole member of the class IV HDAC subfamily with negligible intrinsic deacetylation activity. Here, we report in vitro profiling of HDAC11 deacylase activities, and our data unequivocally show that the enzyme efficiently removes acyl moieties spanning 8-18 carbons from the side chain nitrogen of the lysine residue of a peptidic substrate. Additionally, N linked lipoic acid and biotin are removed by the enzyme, although with lower efficacy. Catalytic efficiencies toward dodecanoylated and myristoylated peptides were 77 700 and 149 000 M-1 s-1, respectively, making HDAC11 the most proficient fatty-acid deacylase of the HDAC family. Interestingly, HDAC11 is strongly inhibited by free myristic, palmitic, and stearic acids with inhibition constants of 6.5, 0.9, and 1.6 MUM, respectively. At the same time, its deacylase activity is stimulated more than 2.5-fold by both palmitoyl-coenzyme A and myristoyl coenzyme A, pointing toward metabolic control of the enzymatic activity by fatty acid metabolites. Our data reveal novel enzymatic activity of HDAC11 that can, in turn, facilitate the uncovering of additional biological functions of the enzyme as well as the design of isoform-specific HDAC inhibitors. PMID- 29336544 TI - Identification of Collateral Sensitivity to Dihydroorotate Dehydrogenase Inhibitors in Plasmodium falciparum. AB - Drug resistance has been reported for every antimalarial in use highlighting the need for new strategies to protect the efficacy of therapeutics in development. We have previously shown that resistance can be suppressed with a population biology trap: by identifying situations where resistance to one compound confers hypersensitivity to another (collateral sensitivity), we can design combination therapies that not only kill the parasite but also guide its evolution away from resistance. We applied this concept to the Plasmodium falciparum dihydroorotate dehydrogenase ( PfDHODH) enzyme, a well validated antimalarial target with inhibitors in the development pipeline. Here, we report a high-throughput screen to identify compounds specifically active against PfDHODH resistant mutants. We additionally perform extensive cross-resistance profiling allowing us to identify compound pairs demonstrating the potential for mutually incompatible resistance. These combinations represent promising starting points for exploiting collateral sensitivity to extend the useful lifespan of new antimalarial therapeutics. PMID- 29336545 TI - Self-Assembly of Silicon@Oxidized Mesocarbon Microbeads Encapsulated in Carbon as Anode Material for Lithium-Ion Batteries. AB - The utilization of silicon/carbon composites as anode materials to replace the commercial graphite is hampered by their tendency to huge volumetric expansion, costly raw materials, and complex synthesis processes in lithium-ion batteries. Herein, self-assembly method is successfully applied to prepare hierarchical silicon nanoparticles@oxidized mesocarbon microbeads/carbon (Si@O-MCMB/C) composites for the first time, in which O-MCMB core and low-cost sucrose-derived carbon shell not only effectively enhance the electrical conductivity of the anode, but also mediate the dramatic volume change of silicon during cycles. At the same time, the carbon can act as "adhesive", which is crucial in enhancing the adhesive force between Si and O-MCMB in the composites. The as-obtained Si@O MCMB/C delivers an initial reversible capacity of 560 mAh g-1 at 0.1 A g-1, an outstanding cyclic retention of 92.8% after 200 cycles, and respectable rate capability. Furthermore, the synthetic route presented here is efficient, less expensive, simple, and easy to scale up for high-performance composites. PMID- 29336546 TI - CuAg@Ag Core-Shell Nanostructure Encapsulated by N-Doped Graphene as a High Performance Catalyst for Oxygen Reduction Reaction. AB - Development of a robust, cost-effective, and efficient catalyst is extremely necessary for oxygen reduction reaction (ORR) in fuel cell applications. Herein, we reported a well-defined nanostructured catalyst of highly dispersed CuAg@Ag core-shell nanoparticle (NP)-encapsulated nitrogen-doped graphene nanosheets (CuAg@Ag/N-GNS) exhibiting a superior catalytic activity toward ORR in alkaline medium. The synergistic effects produced from the unique properties of CuAg@Ag core-shell NPs and N-GNS made such a novel nanohybrid display a catalytic behavior comparable to that of the commercial Pt/C product. In particular, it demonstrated a much better stability and methanol tolerance than Pt/C under the same conditions. Because of its outstanding electrochemical performance and ease of synthesis, CuAg@Ag/N-GNS material was expected to be a promising low-cost catalyst for ORR in alkaline fuel cell applications. PMID- 29336547 TI - Efficient Blue and Yellow Organic Light-Emitting Diodes Enabled by Aggregation Induced Emission. AB - A new class of donor-bridge-acceptor (D-pi-A) pi-conjugated light-emitting molecules comprising carbazole as donor and maleimide (Cbz-MI, Cbz-MI(d)), phthalimide (Cbz-Pth) as acceptor units with phenyl ring as spacer have been synthesized in good yields. These compounds exhibit high quantum yield with three distinct emission colors yellowish-green (Cbz-MI), bright yellow Cbz-MI(d), and sky blue (Cbz-Pth) in the solid state. Single-crystal X-ray and quantum chemical calculations reveals that twisting of the phenyl rings with high torsional angle on maleimide and phthalimide units reduce the effective inter-chromophore electronic coupling, furnish dramatic changes in their photophysical properties in solution and solid states. Intriguingly, Cbz-MI(d) and Cbz-Pth exhibits a unique aggregation-induced blue-shifted emission (AIBSE) due to restricted intramolecular rotation (RIR) process, while Cbz-MI shows red-shifted emission in the solid state. The solvatochromic study reveal that combined RIR and excited state migration augment AIE (aggregation-induced emission) properties. The electrochemical properties reveal that Cbz-MI exhibits high oxidation propensity while Cbz-Pth shows low reduction values. Subsequently, organic light-emitting diodes (OLEDs) were fabricated with a simple three-layer device containing Cbz Pth and Cbz-MI(d) as emitting layers. Cbz-MI(d) exhibits high performance yellow OLED with an external quantum efficiency exceeding ~4.1% and a brightness exceeding ~73915 cd/m2, which is among the best performance reported for bright yellow fluorescence organic light-emitting diodes. PMID- 29336548 TI - Judicious Design of Cationic, Cyclometalated Ir(III) Complexes for Photochemical Energy Conversion and Optoelectronics. AB - The exponential growth in published studies on phosphorescent metal complexes has been triggered by their utilization in optoelectronics, solar energy conversion, and biological labeling applications. Very recent breakthroughs in organic photoredox transformations have further increased the research efforts dedicated to discerning the inner workings and structure-property relationships of these chromophores. Initially, the principal focus was on the Ru(II)-tris-diimine complex family. However, the limited photostability and lack of luminescence tunability discovered in these complexes prompted a broadening of the research to include 5d transition metal ions. The resulting increase in ligand field splitting prevents the population of antibonding eg* orbitals and widens the energy range available for color tuning. Particular attention was given to Ir(III), and its cyclometalated, cationic complexes have now replaced Ru(II) in the vast majority of applications. At the start, this Account documents the initial efforts dedicated to the color tuning of these complexes for their application in light emitting electrochemical cells, an easy to fabricate single layer organic light emitting device (OLED). Systematic modifications of the ligand sphere of [Ir(ppy)2bpy]+ (ppy: 2-phenylpyridine, bpy: 2,2'-bipyridine) with electron withdrawing and donating substituents allowed access to complexes with luminescence emission maxima throughout the visible spectrum exhibiting room temperature excited state lifetimes ranging from nanoseconds to dozens of microseconds and quantum yields up to 15 times that of [Ru(bpy)3]2+. The diverse photophysical properties were also beneficial when using these Ir(III) complexes for driving solar fuel-producing reactions. For instance, photocatalytic water reduction systems were explored to gain access to efficient water splitting systems. For this purpose, a variety of water reduction catalysts were paired with libraries of Ir(III) photosensitizers in high-throughput photoreactors. This parallelized approach allowed exploration of the interplay between the diverse photophysical properties of the Ir compounds and the electron-accepting catalysts. Further work enhanced and simplified the critical electron transfer processes between these two species through the use of bridging functional groups installed on the photosensitizer. Later, a novel approach summarized in this Account explores the possibility of using Zn metal as a solar fuel. Structure activity relationships of the light-driven reduction of Zn2+ to Zn metal are described. DFT calculations along with cyclic voltammetry were utilized to gain clear insights into the complexes' electronic structures responsible for the effective photochemical properties observed in these dyes. While [Ir(ppy)2bpy]+ and its derivatives were found to be much more photostable than the Ru(II)-tris diimine complex family, mass spectrometry indicated that the bpy ligand still photodissociated under extensive illumination. An interesting new approach involved the substitution of the bidentate 2,2'-bipyridine with a stronger chelating terpyridine ligand. This approach leaves room for one 2-phenylpyridine ligand and a third, anionic ligand, either Cl- or CN-. This Account reviews the effect of structural modifications on the photophysical properties of these [Ir(tpy)(ppy)X]+ complexes and corroborates the findings with the results obtained through DFT modeling. These complexes found application in photocatalytic CO2 reductions as well as a solvent tolerant light-absorber for the photogeneration of hydrogen. It was also documented that the robustness of these dyes in photoredox processes supersedes those of the commercially available [Ir(ppy)2(dtbbpy)]PF6 and [Ir(dF(CF3)ppy)2(dtbbpy)]PF6 complexes pioneered in the Bernhard laboratory. PMID- 29336549 TI - Top-Down Hydrogen-Deuterium Exchange Analysis of Protein Structures Using Ultraviolet Photodissociation. AB - Top-down hydrogen-deuterium exchange (HDX) analysis using electron capture or transfer dissociation Fourier transform mass spectrometry (FTMS) is a powerful method for the analysis of secondary structure of proteins in solution. The resolution of the method is a function of the degree of fragmentation of backbone bonds in the proteins. While fragmentation is usually extensive near the N- and C termini, electron capture (ECD) or electron transfer dissociation (ETD) fragmentation methods sometimes lack good coverage of certain regions of the protein, most often in the middle of the sequence. Ultraviolet photodissociation (UVPD) is a recently developed fast-fragmentation technique, which provides extensive backbone fragmentation that can be complementary in sequence coverage to the aforementioned electron-based fragmentation techniques. Here, we explore the application of electrospray ionization (ESI)-UVPD FTMS on an Orbitrap Fusion Lumos Tribrid mass spectrometer to top-down HDX analysis of proteins. We have incorporated UVPD-specific fragment-ion types and fragment-ion mixtures into our isotopic envelope fitting software (HDX Match) for the top-down HDX analysis. We have shown that UVPD data is complementary to ETD, thus improving the overall resolution when used as a combined approach. PMID- 29336550 TI - Phasor-Fluorescence Lifetime Imaging Microscopy Analysis to Monitor Intercellular Drug Release from a pH-Sensitive Polymeric Nanocarrier. AB - The design of highly efficient drug carriers, and the development of appropriate techniques to monitor their mechanism of action and therapeutic effect, are both critical for improving chemotherapy. Herein, a polymeric nanoparticle, PAH Cit/DOX (poly(allylamine)-citraconic anhydride/doxorubicin), was synthesized and used as a nanodrug system for the efficient delivery and pH-responsive release of doxorubicin (DOX) into cancer cells. The PAH-Cit/DOX nanoparticles were stable at physiological pH but effectively released DOX under weakly acidic conditions. The release efficiency was 90.6% after 60 h of dialysis in phosphate-buffered saline at pH 5.5. Confocal images showed the rapid movement of the drug from the cytoplasm to the nucleus, indicating the effective drug release MCF-7 cells. Notably, the combination of fluorescence lifetime imaging microscopy (FLIM) and phasor analysis (phasor-FLIM) provides an approach to monitor the dynamic change of DOX fluorescence lifetime in intercellular environments. Phasor-differentiated lifetime pixel intensity in FLIM images was quantified and used to evaluate the DOX release from nanocarriers, making it possible to detect the dynamics of intracellular release and transport of DOX. PMID- 29336551 TI - First Gut Instincts Are Always Right: The Resolution Required for a Mass Defect Analysis of Polymer Ions Can Be as Low as Oligomeric. AB - Its recent adaptation to low-resolution mass spectra of polymers using fractional base units raises the question of the minimal resolution needed for a Kendrick mass defect (KMD) analysis. Intuiting an oligomeric resolution since the mass of a repeat unit is the sole value to be known, it is challenged by the relative failure of the KMD plots computed from an isotopically resolved matrix-assisted laser desorption ionization-time-of-flight (MALDI-TOF) mass spectrum to display clear alignments in the high mass range. Another procedure based on the remainders of Kendrick mass (RKMs) overcomes this pitfall with oligomers perfectly aligned in a new RKM plot. Despite a concomitant degradation of the resolving power and accuracy, with the example of MALDI-TOF/TOF mass spectra of a variety of homo- and copolymer ions, the RKM procedure still allows a rapid enumeration, assignment, and any further manipulation of all the product ion series in visual RKM plots. Successfully extended to the critical case of a MALDI mass spectrum recorded with a linear TOF analyzer allowing a bare oligomeric resolution, the RKM plot turns the distributions differing by their end-groups or adducted ion into clear horizontal lines. It eventually gives intuition its due by answering the original question: the minimal resolution required for a mass defect analysis can be as low as oligomeric with the appropriate formulas. PMID- 29336552 TI - Engineering the Surface of Therapeutic "Living" Cells. AB - Biological cells are complex living machines that have garnered significant attention for their potential to serve as a new generation of therapeutic and delivery agents. Because of their secretion, differentiation, and homing activities, therapeutic cells have tremendous potential to treat or even cure various diseases and injuries that have defied conventional therapeutic strategies. Therapeutic cells can be systemically or locally transplanted. In addition, with their ability to express receptors that bind specific tissue markers, cells are being studied as nano- or microsized drug carriers capable of targeted transport. Depending on the therapeutic targets, these cells may be clustered to promote intercellular adhesion. Despite some impressive results with preclinical studies, there remain several obstacles to their broader development, such as a limited ability to control their transport, engraftment, secretion and to track them in vivo. Additionally, creating a particular spatial organization of therapeutic cells remains difficult. Efforts have recently emerged to resolve these challenges by engineering cell surfaces with a myriad of bioactive molecules, nanoparticles, and microparticles that, in turn, improve the therapeutic efficacy of cells. This review article assesses the various technologies developed to engineer the cell surfaces. The review ends with future considerations that should be taken into account to further advance the quality of cell surface engineering. PMID- 29336553 TI - Catalytic Mechanism of Cruzain from Trypanosoma cruzi As Determined from Solvent Kinetic Isotope Effects of Steady-State and Pre-Steady-State Kinetics. AB - Cruzain, an important drug target for Chagas disease, is a member of clan CA of the cysteine proteases. Understanding the catalytic mechanism of cruzain is vital to the design of new inhibitors. To this end, we have determined pH-rate profiles for substrates and affinity agents and solvent kinetic isotope effects in pre steady-state and steady-state modes using three substrates: Cbz-Phe-Arg-AMC, Cbz Arg-Arg-AMC, and Cbz-Arg-Ala-AMC. The pH-rate profile of kcat/ Km for Cbz-Arg-Arg AMC indicated p K1 = 6.6 (unprotonated) and p K2 ~ 9.6 (protonated) groups were required for catalysis. The temperature dependence of the p K = 6.2-6.6 group exhibited a Delta Hion value of 8.4 kcal/mol, typical of histidine. The pH-rate profile of inactivation by iodoacetamide confirmed that the catalytic cysteine possesses a p Ka of 9.8. Normal solvent kinetic isotope effects were observed for both D2O kcat (1.6-2.1) and D2O kcat/ Km (1.1-1.4) for all three substrates. Pre steady-state kinetics revealed exponential bursts of AMC production for Cbz-Phe Arg-AMC and Cbz-Arg-Arg-AMC, but not for Cbz-Arg-Ala-AMC. The overall solvent isotope effect on kcat can be attributed to the solvent isotope effect on the deacylation step. Our results suggest that cruzain is unique among papain-like cysteine proteases in that the catalytic cysteine and histidine have neutral charges in the free enzyme. The generation of the active thiolate of the catalytic cysteine is likely preceded (and possibly triggered) by a ligand induced conformational change, which could bring the catalytic dyad into the proximity to effect proton transfer. PMID- 29336554 TI - Competition between Dehydrogenative Organometallic Bonding and Covalent Coupling of an Unfunctionalized Porphyrin on Cu(111). AB - We studied the formation of linked porphyrin oligomers from 5,15 diphenylporphyrin (2H-DPP) by thermal, substrate-assisted organometallic and dehydrogenation coupling on Cu(111) by scanning tunneling microscopy. In the range of 300-620 K, we find three distinct stages, at 300 K, the intact 2H-DPP molecules self-assemble into linear structures held together by van der Waals forces. Increasing the substrate temperature, self-metalation and intramolecular ring-closing reactions result in planar and isolated DPP species on the surface. By C-H cleavage, porphyrin oligomers bonded by organometallic and covalent bonds between the modified DPP are formed. The amount of covalently bonded DPP oligomers increases strongly with annealing time and temperature, and they become the dominant species at 570 K. In contrast, the number of organometallically bonded DPP oligomers increases moderately even up to 620 K, indicating that in this case the organometallic bond is no precursor of the covalent bond. PMID- 29336555 TI - Correction to Ozone Formation Induced by the Impact of Reactive Bromine and Iodine Species on Photochemistry in a Polluted Marine Environment. PMID- 29336556 TI - Linking Spectral Induced Polarization (SIP) and Subsurface Microbial Processes: Results from Sand Column Incubation Experiments. AB - Geophysical techniques, such as spectral induced polarization (SIP), offer potentially powerful approaches for in situ monitoring of subsurface biogeochemistry. The successful implementation of these techniques as monitoring tools for reactive transport phenomena, however, requires the deconvolution of multiple contributions to measured signals. Here, we present SIP spectra and complementary biogeochemical data obtained in saturated columns packed with alternating layers of ferrihydrite-coated and pure quartz sand, and inoculated with Shewanella oneidensis supplemented with lactate and nitrate. A biomass explicit diffusion-reaction model is fitted to the experimental biogeochemical data. Overall, the results highlight that (1) the temporal response of the measured imaginary conductivity peaks parallels the microbial growth and decay dynamics in the columns, and (2) SIP is sensitive to changes in microbial abundance and cell surface charging properties, even at relatively low cell densities (<108 cells mL-1). Relaxation times (tau) derived using the Cole-Cole model vary with the dominant electron accepting process, nitrate or ferric iron reduction. The observed range of tau values, 0.012-0.107 s, yields effective polarization diameters in the range 1-3 MUm, that is, 2 orders of magnitude smaller than the smallest quartz grains in the columns, suggesting that polarization of the bacterial cells controls the observed chargeability and relaxation dynamics in the experiments. PMID- 29336557 TI - Nitrosoallene-Mediated endo-Cyclizations for the Synthesis of (Hetero)cyclic alpha-Substituted exo-Unsaturated Oximes. AB - Nitrosoallene-mediated endo-dig cyclization reactions producing (hetero)cyclic exo-unsaturated oximes (enoximes) are described. The intramolecular 1,4-type addition to in situ generated nitrosoallenes afforded alpha-substituted cyclic enoximes with exo-methylene units, which are the favored conformation for further cyclizations. The strong electron-withdrawing ability of the nitroso group facilitated the construction of five-to-seven-membered ring systems via C-O, C-N, C-S, and C-C bond formations, including a quaternary carbon center, at low temperatures. PMID- 29336558 TI - Excited-State Processes of Cyclometalated Platinum(II) Charge-Transfer Dimers Bridged by Hydroxypyridines. AB - A series of four anti-disposed dinuclear platinum(II) complexes featuring metal metal-to-ligand charge-transfer (MMLCT) excited states, bridged by either 2 hydroxy-6-methylpyridine or 2-hydroxy-6-phenylpyridine and cyclometalated with 7,8-benzoquinoline or 2-phenylpyridine, are presented. The 2-hydroxypyridine bridging ligands control intramolecular d8-d8 metal-metal sigma interactions, affecting the frontier orbitals' electronic structure, resulting in marked changes to the ground- and excited-state properties of these complexes. Three of these molecules possess reversible one-electron oxidations in cyclic voltammetry experiments as a result of strong intramolecular metallophilic interactions. In this series of molecules, X-ray crystallography revealed Pt-Pt distances ranging between 2.815 and 2.878 A; the former represents the shortest reported metal metal distance for platinum(II) dimers possessing low-energy MMLCT transitions. All four molecules reported here display visible absorption bands beyond 500 nm and feature MMLCT-based red photoluminescence (PL) above 700 nm at room temperature with high PL quantum yields (up to 4%) and long excited-state lifetimes (up to 341 ns). The latter were recorded using both transient PL and transient absorption experiments that self-consistently yielded quantitatively identical excited-state lifetimes. The energy-gap law was successfully applied to this series of chromophores, documenting this behavior for the first time in molecules possessing MMLCT excited states. The combined data illustrate that entirely new classes of MMLCT chromophores can be envisioned using bridging pyridyl hydroxides in cooperation with various C^N cyclometalates to achieve photophysical properties suitable for excited-state electron- and energy-transfer chemistry. PMID- 29336559 TI - Investigation on Two Forms of Temperature-Sensing Parameters for Fluorescence Intensity Ratio Thermometry Based on Thermal Coupled Theory. AB - Absolute temperature sensitivity (Sa) reflects the precision of sensors that belong to the same mechanism, whereas relative temperature sensitivity (Sr) is used to compare sensors from different mechanisms. For the fluorescence intensity ratio (FIR) thermometry based on two thermally coupled energy levels of one rare earth (RE) ion, we define a new ratio as the temperature-sensing parameter that can vary greatly with temperature in some circumstances, which can obtain higher Sa without changing Sr. Further discussion is made on the conditions under which these two forms of temperature-sensing parameters can be used to achieve higher Sa for biomedical temperature sensing. Based on the new ratio as the temperature sensing parameter, the Sa and Sr of the BaTiO3: 0.01%Pr3+, 8%Yb3+ nanoparticles at 313 K reach as high as 0.1380 K-1 and 1.23% K-1, respectively. Similarly, the Sa and Sr of the BaTiO3: 1%Er3+, 3%Yb3+ nanoparticles at 313 K are as high as 0.0413 K-1 and 1.05% K-1, respectively. By flexibly choosing the two ratios as the temperature-sensing parameter, higher Sa can be obtained at the target temperature, which means higher precision for the FIR thermometers. PMID- 29336560 TI - Trifluoromethyl-Substituted Iridium(III) Complexes: From Photophysics to Photooxidation of a Biological Target. AB - Photodynamic therapeutic agents are of key interest in developing new strategies to develop more specific and efficient anticancer treatments. In comparison to classical chemotherapeutic agents, the activity of photodynamic therapeutic compounds can be finely controlled thanks to the light triggering of their photoreactivity. The development of type I photosensitizing agents, which do not rely on the production of ROS, is highly desirable. In this context, we developed new iridium(III) complexes which are able to photoreact with biomolecules; namely, our Ir(III) complexes can oxidize guanine residues under visible light irradiation. We report the synthesis and extensive photophysical characterization of four new Ir(III) complexes, [Ir(ppyCF3)2(N^N)]+ [ppyCF3 = 2-(3,5 bis(trifluoromethyl)phenyl)pyridine) and N^N = 2,2'-dipyridyl (bpy); 2-(pyridin-2 yl)pyrazine (pzpy); 2,2'-bipyrazine (bpz); 1,4,5,8-tetraazaphenanthrene (TAP)]. In addition to an extensive experimental and theoretical study of the photophysics of these complexes, we characterize their photoreactivity toward model redox-active targets and the relevant biological target, the guanine base. We demonstrate that photoinduced electron transfer takes place between the excited Ir(III) complex and guanine which leads to the formation of stable photoproducts, indicating that the targeted guanine is irreversibly damaged. These results pave the way to the elaboration of new type I photosensitizers for targeting cancerous cells. PMID- 29336561 TI - A Borane Platinum Complex Undergoing Reversible Hydride Migration in Solution. AB - Reaction of [Pt(kappa2-C,N-ppy)(dmso)Cl], 1 (Hppy = 2-phenylpyridine), with Na[H2B(mb)2] (Hmb = 2-mercapto-benzimidazole) smoothly afforded the complex {[(kappa3-S,B,S-HB(mb)2]Pt(kappa2-C,N-ppy)H}, 2, featuring a strong reverse dative Pt -> B sigma interaction in the solid state. When dissolved in thf (or acetone) solution, 2 undergoes a reversible Pt-H bond activation, establishing an equilibrium between the hexacoordinated 2 and the tetracoordinate complex {[(kappa2-S,S-H2B(mb)2]Pt(kappa2-C,N-ppy)}, 3, as ascertained by multinuclear NMR. Hydrolysis of the B-N bond in 2/3 resulted ultimately in the formation of a dimeric half-lantern platinum(II,II) complex [{Pt(kappa2-C,N-ppy)(MU2-kappa2-N,S mb)}2], 4. The SC-XRD structures of 2 and 4 are reported. PMID- 29336562 TI - Neutron Diffraction Study on the Structure of Hydrated Li+ in Dilute Aqueous Solutions. AB - Neutron diffraction measurements have been carried out for 6Li/7Li isotopically substituted aqueous 1.0 mol % (0.5 mol/kg) LiCl and 1.1 mol % (0.56 mol/kg) LiClO4 solutions in D2O to obtain structural insight concerning hydration structure of Li+ in more dilute electrolyte solutions. The first-order difference function, DeltaLi(Q), was analyzed by means of the least squares fitting procedure to obtain short-range structural parameters around the Li+. It was revealed that the nearest neighbor Li+...O(D2O) distance, rLiO, and the coordination number, nLiO, for the aqueous 1.0 mol % LiCl solution are 2.01 +/- 0.02 A and 5.9 +/- 0.1, respectively. The values, rLiO = 1.97 +/- 0.02 A and nLiO = 6.1 +/- 0.1, are obtained for aqueous 1.1 mol % LiClO4 solution. These results indicate that the hydration number of Li+ in a dilute solution is close to 6, which is much larger than 4, which has long been believed. A possible explanation is that the hydration number of Li+ varies with the solute concentration. PMID- 29336563 TI - Electron Precise Group 5 Dimetallaheteroboranes [{CpV(MU-EPh)}2{MU-eta2:eta2 BH3E}] and [{CpNb(MU-EPh)}2{MU-eta2:eta2-B2H4E}] (E = S or Se). AB - Synthesis and structural elucidation of various electron precise group 5 dimetallaheteroboranes have been described. Room temperature reaction of [Cp2VCl2] with Li[BH3(EPh)], generated from the treatment of LiBH4.THF and Ph2E2 (E = S or Se), for 1 h in toluene, followed by thermolysis, led to the formation of bimetallic complexes [{CpV(MU-EPh)}2{MU-eta2:eta2-BH3E}], 1 and 2 (1: E = S and 2: E = Se), and [{CpV(MU-SePh)}2{MU-eta2:eta2-BH(OC4H8)Se}], 3. One of the striking features of these compounds is that they represent a rare class of distorted tetrahedral clusters having bridging hydrogens. Evaluating the skeletal electron pairs and bonding types, compounds 1, 2, and 3 may be considered as isoelectronic with our earlier reported [(CpV)2(B2H6)2]. In an attempt to synthesize the Nb analogues of 1-3, room temperature reactions of [CpNbCl4] and Li[BH3(EPh)] (E = S or Se) were carried out that afforded compounds [{CpNb(MU EPh)}2{MU-eta2:eta2-B2H4E}], 4 and 5 (4: E = S and 5: E = Se). The solid-state X ray structures of both 4 and 5 exemplify electronically saturated [M2B3] systems, and their geometries are analogous to that of [(Cp*MoCl)2B3H7]. For the extension of this work, reaction of [Cp*TaCl4] (Cp* = eta5-C5Me5) with Li[BH3(SePh)] was carried out that yielded a tantalaselenaborane cluster [(Cp*Ta)2(MU Se)B3H6Se(C6H5)] (6). All the new compounds have been characterized using 1H, 11B{1H}, 13C{1H} NMR, UV-vis absorption, and IR spectroscopy, mass spectrometry, and X-ray diffraction studies. PMID- 29336564 TI - Benzophenone-4 Promotes the Growth of a Pseudomonas sp. and Biogenic Oxidation of Mn(II). AB - Interactions between microbes and micropollutants (MPs) play a crucial role in water purification or treatment. Current studies have generally focused on the direct degradation or cometabolism of MPs. Considering the increasing interest in and importance of the roles of MPs in microbial metabolism, we adopted an Mn(II) oxidizing Pseudomonas sp. QJX-1 using tyrosine (Tyr) as the sole carbon and nitrogen source to investigate the effects of seven MPs on its growth and function. Six MPs exhibited an inhibition effect on bacterial growth and Mn(II) oxidation. Only benzophenone-4 (BP-4) promoted the growth of QJX-1 and biogenic oxidation Mn(II), but its concentration was not directly coupled to growth, which was unexpected. RNA-seq data suggested that the addition of BP-4 did not significantly change the basic metabolic function of QJX-1, but stimulated the upregulation of the pyruvate and gluconeogenesis metabolic pathways of Tyr for QJX-1 growth. Furthermore, protein identification and extracellular superoxide detection indicated that Mn(II) oxidation was largely driven by the formation of superoxide in response to Tyr starvation; the acceleration of superoxide production, due to BP-4 accelerating Tyr consumption, was responsible for the promotion effect of BP-4 on QJX-1 Mn(II) oxidation. Our findings highlight the dual effects that MPs can have on the growth and function of a single strain in aquatic ecosystem, i.e., the coexistence of inhibition and promotion. PMID- 29336565 TI - Appearances of Fukushima Daiichi Nuclear Power Plant-Derived 137Cs in Coastal Waters around Japan: Results from Marine Monitoring off Nuclear Power Plants and Facilities, 1983-2016. AB - Monitoring of 137Cs in seawater in coastal areas around Japan between 1983 and 2016 yielded new insights into the sources and transport of Fukushima Daiichi Nuclear Power Plant (FDNPP)-derived 137Cs, particularly along the west coast of Japan. Before the FDNPP accident (1983-2010), the activity concentrations of 137Cs, mainly from fallout, were decreasing exponentially. Effective 137Cs half lives in surface seawater ranged from 15.6 to 18.4 yr. After the FDNPP accident (March 2011) 137Cs activity concentrations in seawater off Fukushima and neighboring prefectures immediately increased. Since May/June 2011, 137Cs activity concentrations there have been declining, and they are now approaching preaccident levels. Along the west coast of Japan remote from FDNPP (i.e., the Japan Sea), however, radiocesium activity concentrations started increasing by 2013, with earlier (May/June 2011) increases at some sites due to airborne transport and fallout. The inventory of 137Cs in the Japan Sea (in the main body of the Tsushima Warm Current) in 2016 was calculated to be 0.97 * 1014 Bq, meaning that 0.44 * 1014 Bq of FDNPP-derived 137Cs was added to the estimated global fallout 137Cs inventory in 2016 (0.53 * 1014 Bq). The net increase of 137Cs inventory in the Japan Sea through the addition of FDNPP-derived 137Cs accounts for approximately 0.2% of the total 137Cs flux from the plant to the ocean from the accident. PMID- 29336566 TI - Electrochemistry of Bis(pyridine)cobalt (Nitrophenyl)corroles in Nonaqueous Media. AB - A series of bis(pyridine)cobalt corroles with one or three nitrophenyl groups on the meso positions of the corrole macrocycle were synthesized and characterized as to their electrochemical and spectroscopic properties in dichloromethane, benzonitrile, and pyridine. The potentials for each electrode reaction were measured by cyclic voltammetry and the electron-transfer mechanisms evaluated by analysis of the electrochemical data combined with UV-visible spectra of the neutral, electroreduced, and electroxidized forms of the corroles. The proposed electronic configurations of the initial compounds and the prevailing redox reactions involving the electroactive central cobalt ion, the electroactive conjugated macrocycle, and the electroactive meso-nitrophenyl groups are all discussed in terms of solvent binding and the number of the nitrophenyl groups and other substituents on the meso-nitrophenyl rings of the compounds. PMID- 29336567 TI - Nonisothermal Spreading Dynamics of Self-Rewetting Droplets. AB - We experimentally studied the spreading dynamics of binary alcohol mixtures (and pure liquids for reference) deposited on a heated substrate in a partially wetting situation under nonisothermal conditions. We show that the spreading mechanism of an evaporating droplet exhibits a power-law growth with early-stage exponents that depend strongly and nonmonotonically on the substrate temperature. Moreover, we investigated the temporal and spatial thermal dynamics in the droplet using infrared thermography, revealing the existence of unique thermal patterns due to thermal and/or solutal instabilities, which lead to surface tension gradients, namely the Marangoni effect. Our key findings are that the temperature of the substrate drastically affects the early-stage inertial capillary spreading regime owing to the nonmonotonic surface tension-temperature dependence of the self-rewetting liquids. At later stages of wetting, the spreading dynamics enters the viscous-capillary dominated regime, with the characteristic low kinetics mirroring the behavior of pure liquids. PMID- 29336569 TI - Paper-Based DNA Reader for Visualized Quantification of Soil-Transmitted Helminth Infections. AB - Soil-transmitted helminth (STH) infections are a global health issue affecting nearly one-third of the world's population. As most endemic areas of STH are impoverished countries or regions with limited healthcare resources, the accurate diagnosis of STH requires analytical tools that are not only quantitative, but also portable, inexpensive, and with no or minimal demand for external instrument. Herein, we introduce a novel paper-based diagnostic device, termed quantitative paper-based DNA reader (qPDR), capable of quantifying STH at the molecular level by measuring distance as readout, thus eliminating the need for external readers. On the basis of the unique interfacial interaction of a DNA intercalating dye, SYBR Green I, with native cellulose on a chromatographic paper, qPDR allows the distance-based quantification of minute amounts of double stranded DNA as short as 6 min. By integrating qPDR with polymerase chain reactions that were performed using a smartphone-controlled portable thermal cycler, we were able to quantify minute amount of genetic markers from adult worms of an STH (Trichuris trichiura) that were expelled post-treatment by infected children living in the rural areas of Honduras. PMID- 29336568 TI - Strain Distribution Across an Individual Shear Band in Real and Simulated Metallic Glasses. AB - Because of the fast dynamics of shear band formation and propagation along with the small size and transient character of the shear transformation zones (STZs), the elementary units of plasticity in metallic glasses, the description of the nanoscale mechanism of shear banding often relies on molecular dynamics (MD) simulations. However, the unrealistic parameters used in the simulations related to time constraints may raise questions about whether quantitative comparison between results from experimental and computational analyses is possible. Here, we have experimentally analyzed the strain field arising across an individual shear band by nanobeam X-ray diffraction and compared the results with the strain characterizing a shear band generated by MD simulations. Despite their largely different spatiotemporal scales, the characteristic features of real and simulated shear bands are strikingly similar: the magnitude of the strain across the shear band is discontinuous in both cases and the direction of the principal strain axes exhibits the same antisymmetric profile. This behavior can be explained by considering the mechanism of STZ activation and percolation at the nanoscale, indicating that the nanoscale effects of shear banding are not limited to the area within the band but they extend well into the surrounding elastic matrix. These findings not only demonstrate the reliability of MD simulations for explaining (also quantitatively) experimental observations of shear banding but also suggest that designed experiments can be used the other way around to verify numerical predictions of the atomic rearrangements occurring within a band. PMID- 29336570 TI - Design of Near-Infrared Luminescent Lanthanide Complexes Sensitive to Environmental Stimulus through Rationally Tuning the Secondary Coordination Sphere. AB - The design of near-infrared (NIR) emissive lanthanide (Ln) complexes sensitive to external stimulus is fundamentally important for the practical application of Ln materials. Because NIR emission from Ln is extremely sensitive to X-H (X = C, N and O) bond vibration, we herein report to harness the secondary coordination sphere to design NIR luminescent lanthanide sensors. Toward this goal, we designed and synthesized two isomeric [(eta5-C5H5)Co{(D3CO)2P = O}3]-Yb(III) 7,8,12,13,17,18-hexafluoro-5,10,15,20-tetrakis(pentafluorophenyl)porpholactol NIR emitters, Yb-up and Yb-down, based on the stereoisomerism of porphyrin peripheral beta-hydroxyl group. Yb-up, in which beta-OH is at the same side of Yb(III) center, can form an intramolecular hydrogen bond with the axial Klaui ligand, whereas Yb-down cannot because its beta-OH is opposite to Yb(III) center. X-ray crystal structures and photophysical studies suggested that the intramolecular hydrogen bond plays important roles on the NIR luminescence of ytterbium(III), which shortens the distance between beta-OH and Yb(III) and facilitates the nonradiative deactivation of Ln excited state. Importantly, Yb-up/down were demonstrated to be highly sensitive toward temperature and viscosity. The PMMA polymer using Yb-up as the dopant NIR emitter showed thermosensitivity up to 6.0% degrees C-1 in the wide temperature range of 77-400 K, higher than that of Yb down (3.8% degrees C-1). These complexes were also explored as the first NIR viscosity sensor, revealing their potential applications as optical sensors without visible light interference. This work demonstrates the importance of secondary coordination sphere on designing NIR Ln luminescent functional materials. PMID- 29336571 TI - Atmospheric Processing and Iron Mobilization of Ilmenite: Iron-Containing Ternary Oxide in Mineral Dust Aerosol. AB - Over the last several decades, iron has been identified as a limiting nutrient in about half of the world's oceans. Its most significant source is identified as deposited iron-containing mineral dust that has been processed during atmospheric transportation. The current work focuses on chemical and photochemical processing of iron-containing mineral dust particles in the presence of nitric acid, and an organic pollutant dimethyl sulfide under atmospherically relevant conditions. More importantly, ilmenite (FeTiO3) is evaluated as a proxy for the iron containing mineral dust. The presence of titanium in its lattice structure provides higher complexity to mimic mineral dust, yet it is simple enough to study reaction pathways and mechanisms. Here, spectroscopic methods are combined with dissolution measurements to investigate atmospheric processing of iron in mineral dust, with specific focus on particle mineralogy, particle size, and their environmental conditions (i.e., pH and solar flux). Our results indicate that the presence of titanium elemental composition enhances iron dissolution from mineral dust, at least by 2-fold comparison with its nontitanium-containing counterparts. The extent of iron dissolution and speciation is further influenced by the above factors. Thus, our work highlights these important, yet unconsidered, factors in the atmospheric processing of iron-containing mineral dust aerosol. PMID- 29336572 TI - {[Hg(SCN)3]2(MU-L)}2-: An Efficient Secondary Building Unit for the Synthesis of 2D Iron(II) Spin-Crossover Coordination Polymers. AB - We report an unprecedented series of two-dimensional (2D) spin-crossover (SCO) heterobimetallic coordination polymers generically formulated as {FeII[(HgII(SCN)3)2](L)x}.Solv, where x = 2 for L = tvp (trans-(4,4' vinylenedipyridine)) (1tvp), bpmh ((1E,2E)-1,2-bis(pyridin-4 ylmethylene)hydrazine) (1bpmh.nCH3OH; n = 0, 1), bpeh ((1E,2E)-1,2-bis(1-(pyridin 4-yl)ethylidene)hydrazine) (1bpeh.nH2O; n = 0, 1) and x = 2.33 for L = bpbz (1,4 bis(pyridin-4-yl)benzene) (1bpbz.nH2O; n = 0, 2/3). The results confirm that self assembly of FeII, [HgII(SCN)4]2-, and ditopic rodlike bridging ligands L containing 4-pyridyl moieties favors the formation of linear [Fe(MU-L)]n2n+ chains and in situ generated binuclear units {[HgII(SCN)3]2(MU-L)}2-. The latter act as bridges between adjacent chains generating robust 2D layers. The [FeIIN6] centers are equatorially surrounded by four NCS- groups and two axial N atoms of the organic ligand L. The compound 1tvp and the unsolvated form of 1bpmh undergo complete SCO centered at T1/2 = 177 and 226 K, characterized by the enthalpy and entropy variations DeltaH = 12.3 and 10.5 kJ mol-1 and DeltaS = 69.4 and 48 J K-1 mol-1, respectively. The almost complete SCO of the unsolvated form of 1bpeh occurs at ca. T1/2 = 119 K and exhibits a complete LIESST effect. Regardless of the degree of solvation, a half-spin conversion at T1/2 < 100 K occurs for 1bpbz.nH2O, which becomes almost complete at p = 0.65 GPa. The labile solvent molecules present in 1bpmh.CH3OH and 1bpeh.H2O have a dramatic influence on the corresponding SCO behavior. PMID- 29336573 TI - Biomimetic Enantioselective Total Synthesis of (-)-Petromindole. AB - The first enantioselective total synthesis of (-)-petromindole, an architecturally distinct congener of indole diterpene family, has been achieved. Key features of this synthetic route include the scalable and concise synthesis of tricyclic allylic alcohol from enantiopure Wieland-Mischer ketone derivative, and TMSOTf-mediated, highly efficient biomimetic C-4 cyclization of indole derivative for the rapid construction of a hexacyclic skeleton of petromindole. PMID- 29336574 TI - Janus-Type Gold/Polythiophene Composites Formed via Redox Reaction at the Ionic Liquid|Water Interface. AB - Janus-type Au/polythiophene (PT) composites have been prepared by utilizing the liquid/liquid interface between water (W) and a hydrophobic ionic liquid (IL) as the redox reaction site. AuCl4- is reductively deposited, and terthiophene is oxidatively polymerized spacio-selectively at the IL|W interface, leading to the formation of the Au/PT composites. The composites are Janus-type Au-attached PT plates with two surface morphologies, flat surface and flowerlike surface at the W and IL sides of the plates at the IL|W interface, respectively. Not only surface morphologies but also attached Au structures are different at the two surfaces; Au microurchins on the flat surface and dendritic Au nanofibers on the flowerlike surface. Optical and scanning electron microscopic observations have revealed that nanofibers and microurchins are formed at the early and later stage of the reaction, respectively. Electrochemistry at the IL|W interface has illustrated that electron transfer across the IL|W interface during the formation of the Janus-type Au/PT composites is coupled with ion transfer of AuCl4- to compensate for the charge unbalance in the two liquid phases. AuCl4- transferred into IL is found to be the source of the dendritic Au nanofibers formed at the IL side of the PT plates. PMID- 29336576 TI - Dicyclopentyl Dithiosquarate as an Intermediate for the Synthesis of Thiosquaramides. AB - A general and greatly improved route is reported for the synthesis of a variety of thiosquaramides from a common dithionated intermediate. Both diaryl thiosquaramides and bifunctional thiosquaramides are readily accessed from dicyclopentyl dithiosquarate via two addition-elimination reactions. The convenient handling characteristics and relative stability of associated intermediates enable an operationally simple thiosquaramide preparation. Bifunctional aryl thiosquaramides, which were inaccessible by the previous method, are also prepared, and their catalytic performance is demonstrated, including their capability to function as Bronsted acid catalysts. PMID- 29336577 TI - [Indications to liver transplantation]. AB - Liver transplantation should be considered in patients with end-stage liver disease in whom this operation would extend life expectancy beyond what the natural history of underlying disease would predict or in whom transplantation is likely to substantially improve the quality of life. Liver transplantation is indicated in end-stage liver disease, in selected liver tumors and in fulminant liver failure. The most common indication in adult to transplantation is decompensated liver cirrhosis with life expectancy one year or less. Evaluation and referral to transplantation center should be considered when a major complication of liver cirrhosis occurs - ascites, bleeding due to portal hypertension, hepatorenal syndrome or hepatic encephalopathy. MELD score 15 is recommended to list patients with end-stage liver disease. In recent years the indication of decompensated cirrhosis B and C is declining, on contrary, there is an increase in indication for hepatocellular carcinoma and NASH. An extension of indications has been observed recently - patients above 70 years of age, patients with neuroendocrine tumors among others. In 2016 in Czech Republic total 179 livers were transplanted, but only a small fraction of potential candidates was referred to transplant centers. PMID- 29336575 TI - Challenges in the Conversion of Manual Processes to Machine-Assisted Syntheses: Activation of Thioglycoside Donors with Aryl(trifluoroethyl)iodonium Triflimide. AB - The steps needed to adapt a stable iodonium promoter for use in automated fluorous-assisted solution-phase oligosaccharide synthesis are described. Direct adaptation of the originally reported batch procedure resulted in the formation of an orthoester or protecting group transfer to the glycosyl acceptor. Fortunately, the addition of inexpensive beta-pinene as an acid scavenger avoided both of these side reactions. The utility of this newly developed protocol was applied to the automated solution-phase synthesis of a beta-glucan fragment. PMID- 29336578 TI - [Intestinal transplantation in Czech Republic]. AB - : Intestinal transplantation represents a suitable treatment for patients with intestinal failure who then develop life-threatening complications of total parenteral nutrition and for some patients with complex abdominal disorders not suitable for conventional treatment. METHODS: prior to launch of the clinical program, preparation started in 2006 initially with extensive experimentation carried out on pigs. The clinical phase involved a specialized, multidisciplinary team who examined 23 patients being considered for transplantation. Seven patients were put on a waiting list and one female, due to the improvement of her medical status, was unlisted. The first ever intestinal transplantation was done in 2014. RESULTS: three out of six transplanted patients are alive with 380 days of actual survival; median 131 days (63-763). Two patients are on a full oral diet and nutritionally independent with an excellent quality of life. One female is nutritionally independent but with the need for partial supplemental parenteral rehydration due to the stomal output. CONCLUSION: intestinal transplantation is a suitable treatment for highly selected patients with intestinal failure who meet specific listing criteria. PMID- 29336579 TI - [Pros and cons of dual kidney transplantation]. AB - Dual kidney transplantation is one of the options to utilize so called marginal grafts, kidneys that would be insufficient for normal single transplantation. This time consuming and burdensome surgical procedure can be beneficial in precisely selected patients. This method requires correct algorithm of donors and recipients selections, than we can expect the best results.Key words: dual kidney transplantation, marginal donor, chronic renal failure, expanded criteria donor. PMID- 29336580 TI - Organ transplantation from donors after circulatory death. AB - The scarcity of organs for transplantation resulted in the increase of organ donation after circulatory death. This review describes the current practice with donors after circulatory death (DCD), recent classification of DCD and organ procurement from DCD. Then the outcome of organ transplantation from is discussed and the new strategies in DCD are presented. Despite of the fact that DCD are extended criteria donors, strict organ selection and novel technologies as machine perfusion or normothermic perfusion allows better utilization of DCD with a similar outcome as from donors after brain death. PMID- 29336581 TI - [Organ transplantation from donors after circulatory death]. AB - The scarcity of organs for transplantation resulted in the increase of organ donation after circulatory death. This review describes the current practice with donors after circulatory death (DCD), recent classification of DCD and organ procurement from DCD. Then the outcome of organ transplantation from is discussed and the new strategies in DCD are presented. Despite of the fact that DCD are extended criteria donors, strict organ selection and novel technologies as machine perfusion or normothermic perfusion allows better utilization of DCD with a similar outcome as from donors after brain death. PMID- 29336582 TI - [Psychological evaluation of uterus transplantation trial participants]. AB - Uterus transplantation is a life-giving and quality-of-life enhancing transplantation. Life with transplanted uterus is a transitional phase of life for both recipients and their partners. Six deliveries of healthy children from five transplanted mothers out of 9 uterus transplantations in Sweden may encourage untimely hopes of thousands of women with absolute uterine factor infertility worldwide. Psychological evaluation might be included into all trials regarding new treatment methods and treatment procedures. Main psychological issues connected with the infertility treatment in women with absent uterus are clearly defined (especially in vitro fertilization, uterus transplantation, compliance with immunosuppressive treatment, ultrasound examinations of uterine vascular perfusion, rejection signs surveillance, embryo transfer, pregnancy, cesarean section, preterm delivery risk, puerperium, hysterectomy and immunosuppressive treatment termination). The role of psychological evaluation of participants before the admission to complicated treatment process is to choose those who will be able to cope all mentioned difficulties and unexpected complications including potential failure of the whole treatment without serious negative impact on their psychological situation. Up to now experience with psychological stability of our 7 uterus recipients and 3 uterus living donors are good although post-transplant period is especially in recipients connected with everyday psychological adaptation on the significant life changes. We are aware that psychological evaluation of our study participants will require further 3 years of follow up with publication of our results. PMID- 29336583 TI - [Psychological problems of patients who survived cardiac arrest out of hospital]. AB - Out-of-hospital circulatory arrest is a major challenge of current medicine. Circulatory arrest survivors bear increased risk of developing anxiety disorders and depressions both during hospitalization and after discharging to the home care. Circulatory arrest survivors are not provided routinely with psychological care. Patients included in our pilot research were identified in the register of surviving circulatory arrest. The survey was carried out using a non-standardized questionnaire. A total of 28 patients surviving the circulatory arrest were included in the pilot research. The average age of respondents was 54 years. There were 20 men and 8 women. The project showed that 18 (64.3 %) people, since they went through the critical status, have suffered from negative and bothering symptoms, such as: fear of a repeated cardiac arrest, sleeping disorders, persistent tiredness etc. Despite the fact that our group of patients was relatively small and larger studies addressing the issue are needed, our finding is alarming - the patients after the cardiac arrest suffer from many anxious and depressive symptoms as well as from cognitive deficit. In the situation when the common psychological intervention by a specialist is not provided, it seems that an early psychological invention is highly desirable and may have a beneficial effect on return of the patients to their everyday life. PMID- 29336584 TI - [Current macro-diagnostic trends of forensic medicine in the Czech Republic]. AB - Over the last few years, advanced diagnostic methods have penetrated in the realm of forensic medicine in addition to standard autopsy techniques supported by traditional X-ray examination and macro-diagnostic laboratory tests. Despite the progress of imaging methods, the conventional autopsy has remained basic and essential diagnostic tool in forensic medicine. Postmortem computed tomography and magnetic resonance imaging are far the most progressive modern radio diagnostic methods setting the current trend of virtual autopsies all over the world. Up to now, only two institutes of forensic medicine have available postmortem computed tomography for routine diagnostic purposes in the Czech Republic. Postmortem magnetic resonance is currently unattainable for routine diagnostic use and was employed only for experimental purposes. Photogrammetry is digital method focused primarily on body surface imaging. Recently, the most fruitful results have been yielded from the interdisciplinary cooperation between forensic medicine and forensic anthropology with the implementation of body scanning techniques and 3D printing. Non-invasive and mini-invasive investigative methods such as postmortem sonography and postmortem endoscopy was unsystematically tested for diagnostic performance with good outcomes despite of limitations of these methods in postmortem application. Other futuristic methods, such as the use of a drone to inspect the crime scene are still experimental tools. The authors of the article present a basic overview of the both routinely and experimentally used investigative methods and current macro-diagnostic trends of the forensic medicine in the Czech Republic. PMID- 29336585 TI - [The Guideline on Spiritual Care of the Ministry of Health of the Czech Republic]. AB - In April 2017, the Ministry of Health of the Czech Republic issued a Guideline on Spiritual Care in Bedside Medical Facilities of Medical Service Providers. Through this document, the ministry established the much-needed framework for the operation of hospital chaplains in medical facilities, including the conditions for their activities, and defined some terms such as spiritual care, chaplains, etc. Although this is an important initiative on the part of the ministry, the guideline does not cover a number of aspects of spiritual care in bedside medical facilities and will need some specification and completion. PMID- 29336586 TI - Image Information Obtained Using a Charge-Coupled Device (CCD) Camera During an Immersion Liquid Evaporation Process for Measuring the Refractive Index of Solid Particles. AB - The refractive index is a fundamental physical property of a medium, which can be used for the identification and purity issues of all media. Here we describe a refractive index measurement technique to determine simultaneously the refractive index of different solid particles by monitoring the transmittance of light from a suspension using a charge-coupled device (CCD) camera. An important feature of the measurement is the liquid evaporation process for the refractive index matching of the solid particle and the immersion liquid; this was realized by using a pair of volatile and non-volatile immersion liquids. In this study, refractive indices of calcium fluoride (CaF2) and barium fluoride (BaF2) were determined using the proposed method. PMID- 29336587 TI - Spatially Resolved Spectral Powder Analysis: Experiments and Modeling. AB - Understanding the behavior of light in granular media is necessary for determining the sample size, shape, and weight when probing using fiber optic setups. This is required for a correct estimate of the active pharmaceutical ingredient content in a pharmaceutical blend via near-infrared spectroscopy. Several strategies to describe the behavior of light in granular and turbid media exist. A common approach is the Monte-Carlo simulation of individual photons and their description using mean free path lengths for scattering and absorption. In this work, we chose a complementary method by approximating these parameters via real physical counterparts, i.e., the particle size, shape, and density and the resulting chord lengths. Additionally, the wavelength dependence of refractive indices is incorporated. The obtained results were compared with those obtained in an experimental setup that included the SAM-Spec Felin probe head by Indatech for detecting spatially resolved spectra of samples. Our method facilitates the interpretation of the acquired experimental results by contrasting the optical response, the physical particle attributes, and the simulation results. PMID- 29336588 TI - Uncertainty of Integrated Intensity Following Line Profile Fitting of Multiline Spectra. AB - A novel method of determining the total uncertainty in the integrated intensity of fitted emission lines in multipeaked emission spectra is presented. The proposed method does not require an assumption of the type of line profile to be specified. The absolute difference between a fit and measured spectrum defines the uncertainty of the integrated signal intensity and is subsequently decomposed to determine the uncertainty of each peak in multiline fits. Decomposition relies on tabulating a weighting factor, which describes how each peak contributes to the total integral uncertainty. Applications of this method to quantitative approaches in laser-induced breakdown spectroscopy analysis are described. PMID- 29336589 TI - Near-Infrared Spectroscopy Screening to Allow Detection of Pathogenic Mitochondrial DNA Variants in Individuals with Unexplained Abnormal Fatigue: A Preliminary Study. AB - Unexplained abnormal fatigue is characterized by chronic fatigue persisting for at least six months and not sufficiently explained by any recognized medical condition. In this pilot study, twelve individuals with abnormal fatigue remaining unexplained after thorough screening were investigated using a near infrared (NIR) spectroscopy handgrip test. Four of them were found to have an abnormal oxygen extraction pattern similar to participants with documented mitochondrial myopathy. In three of the four individuals, diverse mitochondrial abnormalities were documented by spectrophotometric, immunocytological, fluorescent, and morphological analyses performed in skeletal muscle and in cultured skin fibroblasts. Three of the four participants with decreased muscular oxygen extraction were each shown to harbor a different homoplasmic pathogenic mitochondrial DNA point mutation (m.961T > C, m.1555A > G, m.14484T > C). In the fourth participant, the presence of multiple large mitochondrial DNA deletions was suspected in muscle tissue. In contrast, none of the eight abnormally fatigued participants with normal NIR spectroscopy results harbored either a pathogenic mitochondrial DNA point mutation or large deletions ( P < 0.001). This pilot study shows that NIR spectroscopy may serve as a noninvasive screening tool to delineate a subgroup (of participants) with mitochondrial dysfunction among the large group of individuals with unexplained abnormal fatigue. PMID- 29336590 TI - Modern perspectives on the health benefits of kefir in next generation sequencing era: Improvement of the host gut microbiota. AB - Kefir is a natural complex fermented milk product containing more than 50 species of probiotic bacteria and yeast, and has been demonstrated to have multiple properties conferring health benefits, including antiobesity, anti-hepatic steatosis, antioxidative, antiallergenic, antitumor, anti-inflammatory, cholesterol-lowering, constipation-alleviating, and antimicrobial properties. To better understand the underlying mechanisms of these benefits, we here review research on the effect of kefir (and kefir microorganisms) consumption to modulate the host gut microbiota. Owing to its excellent gastrointestinal resistance and colonization ability and wide ranges of microbial interaction, kefir has shown significant and wide-spectrum modulatory effects on the host gut microbiota. In particular, as a bacteria- and yeast-containing food, kefir can modulate both the gut microbiota and mycobiota. Since the association of this modulation with health benefit has only been addressed in a small number of recent studies thus far, further studies are needed to determine the precise mechanisms of the beneficial effects of kefir in relation to the modulation of the gut microbiota and mycobiota. Gaining this insight will surely help to take full advantage of this unique probiotic food. PMID- 29336591 TI - Adherence to antiretroviral therapy, stigma and behavioral risk factors in HIV infected adolescents in Asia. AB - We studied behavioral risks among HIV-infected and uninfected adolescents using an audio computer-assisted self-interview. A prospective cohort study was initiated between 2013 and 2014 in Malaysia, Thailand, and Vietnam. HIV-infected adolescents were matched to uninfected adolescents (4:1) by sex and age group (12 14 and 15-18 years). We enrolled 250 HIV-infected (48% male; median age 14.5 years; 93% perinatally infected) and 59 uninfected (51% male; median age 14.1 years) adolescents. At enrollment, HIV-infected adolescents were on antiretroviral therapy (ART) for a median (IQR) of 7.5 (4.7-10.2) years, and 14% had HIV-RNA >1000 copies/mL; 19% reported adherence <80%. Eighty-four (34%) HIV infected and 26 (44%) uninfected adolescents reported having ever smoked cigarettes or drunk alcohol (p = 0.13); 10% of HIV-infected and 17% of uninfected adolescents reported having initiated sexual activity; 6 of the HIV-infected adolescents had HIV-RNA >1000 copies/mL. Risk behaviors were common among adolescents, with few differences between those with and without HIV. PMID- 29336592 TI - Changes in Body Mass Index, Leptin, and Leptin Receptor Polymorphisms and Breast Cancer Risk. AB - Obesity is a strong risk factor for breast cancer. The polymorphisms of leptin (LEP) and leptin receptor (LEPR) may be associated with breast cancer by regulator of adipose tissue mass and tumor cell growth. A total of 794 cases and 805 matched controls were sequentially enrolled. Time-of-flight mass spectrometry was used to determine the LEPrs7799039, LEPRrs1137100, and LEPRrs1137101 genotypes for each participant. Associations between polymorphisms of these genes, change in body mass index (BMI), and breast cancer risk were assessed by unconditional multivariable logistic regression models. The unconditional logistic regression model showed that persistent overweight (BMI >=24 kg/m2) over the preceding 10 years was associated with increased breast cancer risk in premenopausal women (odds ratio [OR] = 1.67, 95% confidence interval [CI]: 1.19 2.35). No associations between LEPrs7799039, LEPRrs1137100, or LEPRrs1137101 polymorphisms alone and breast cancer risk were found. Persistent overweight over the preceding 10 years and carrying the LEPrs7799039 AA genotype together increased breast cancer risk in premenopausal women (ORadj = 2.00, 95% CI: 1.26 3.16). Persistent overweight over the preceding 10 years and carrying the LEPRrs1137100 GG genotype increased breast cancer risk in premenopausal women (ORadj = 1.68, 95% CI: 1.06-2.68). In premenopausal women, persistent overweight (BMI >=24 kg/m2) over the preceding 10 years increases breast cancer risk. Persistent overweight along with LEPrs7799039 AA or LEPRrs1137100 GG genotypes synergistically increase risk of breast cancer among premenopausal women. PMID- 29336593 TI - Effect of vitamin A supplementation on iron status in humans: A systematic review and meta-analysis. AB - Anemia is a worldwide public health problem that can be related to many causes, including vitamin A deficiency. The aim of this study was to assess and estimate the effect of vitamin A supplementation (VAS) on iron status biomarkers and anemia in humans. Six databases, including Cochrane, EMBASE, LILACS, Pubmed, Scopus and Web of Science, were searched for clinical trials and cohort studies that investigated the effect of vitamin A supplementation alone on iron status and anemia, without time-restriction. The search yielded 23 eligible studies, 21 clinical trials and 2 cohort studies, with children, teenagers, pregnant or lactating women. The meta-analysis of the clinical trials showed that VAS reduces the risk of anemia by 26% and raises hemoglobin levels, compared to non-treated group, independent of the life stage. VAS did not alter the prevalence of iron deficiency among the clinical trials conducted with children and teenagers (RR 0.82, 95% CI 0.60 to 1.12, p = 0.204), whereas a significant increase in serum ferritin levels was observed in trials conducted with pregnant and lactating women (WMD 6.61 MUg/L; 95% CI 6.00 to 7.21 MUg/L; p < 0.001). Therefore, vitamin A supplementation alone may reduce the risk of anemia, by improving hemoglobin and ferritin levels in individuals with low serum retinol levels. PMID- 29336595 TI - Exploitation of microbial antagonists for the control of postharvest diseases of fruits: a review. AB - Fungal diseases result in significant losses of fruits and vegetables during handling, transportation and storage. At present, post-production fungal spoilage is predominantly controlled by using synthetic fungicides. Under the global climate change scenario and with the need for sustainable agriculture, biological control methods of fungal diseases, using antagonistic microorganisms, are emerging as ecofriendly alternatives to the use of fungicides. The potential of microbial antagonists, isolated from a diversity of natural habitats, for postharvest disease suppression has been investigated. Postharvest biocontrol systems involve tripartite interaction between microbial antagonists, the pathogen and the host, affected by environmental conditions. Several modes for fungistatic activities of microbial antagonists have been suggested, including competition for nutrients and space, mycoparasitism, secretion of antifungal antibiotics and volatile metabolites and induction of host resistance. Postharvest application of microbial antagonists is more successful for efficient disease control in comparison to pre-harvest application. Attempts have also been made to improve the overall efficacy of antagonists by combining them with different physical and chemical substances and methods. Globally, many microbe based biocontrol products have been developed and registered for commercial use. The present review provides a brief overview on the use of microbial antagonists as postharvest biocontrol agents and summarises information on their isolation, mechanisms of action, application methods, efficacy enhancement, product formulation and commercialisation. PMID- 29336594 TI - Incorporating Whole-Genome Sequencing into Public Health Surveillance: Lessons from Prospective Sequencing of Salmonella Typhimurium in Australia. AB - In Australia, the incidence of Salmonella Typhimurium has increased dramatically over the past decade. Whole-genome sequencing (WGS) is transforming public health microbiology, but poses challenges for surveillance. To compare WGS-based approaches with conventional typing for Salmonella surveillance, we performed concurrent WGS and multilocus variable-number tandem-repeat analysis (MLVA) of Salmonella Typhimurium isolates from the Australian Capital Territory (ACT) for a period of 5 months. We exchanged data via a central shared virtual machine and performed comparative genomic analyses. Epidemiological evidence was integrated with WGS-derived data to identify related isolates and sources of infection, and we compared WGS data for surveillance with findings from MLVA typing. We found that WGS data combined with epidemiological data linked an additional 9% of isolates to at least one other isolate in the study in contrast to MLVA and epidemiological data, and 19% more isolates than epidemiological data alone. Analysis of risk factors showed that in one WGS-defined cluster, human cases had higher odds of purchasing a single egg brand. While WGS was more sensitive and specific than conventional typing methods, we identified barriers to uptake of genomic surveillance around complexity of reporting of WGS results, timeliness, acceptability, and stability. In conclusion, WGS offers higher resolution of Salmonella Typhimurium laboratory surveillance than existing methods and can provide further evidence on sources of infection in case and outbreak investigations for public health action. However, there are several challenges that need to be addressed for effective implementation of genomic surveillance in Australia. PMID- 29336596 TI - HIV-related thought avoidance, sexual risk, and alcohol use among men who have sex with men. AB - HIV-related "cognitive escape" refers to a tendency to avoid thoughts associated with HIV, which may be particularly common among men who have sex with men (MSM) who are often inundated with HIV information, potentially to the point of fatigue. HIV-related cognitive escape is associated with increased sexual risk behaviors, such as condomless sex, and heavier alcohol use patterns. Other studies show that some MSM may use alcohol specifically to facilitate sex. These sexual motives for drinking (SMDs) could be one mechanism whereby cognitive escape leads to health risk behaviors. In this study, we tested models exploring whether cognitive escape was associated with markers of sex risk (condom use, number of sex partners) and alcohol use/problems, and examined whether SMDs mediated these associations. Heavy drinking, HIV-negative men (N = 196) aged >= 21 years who self-reported past year condomless anal sex with men completed assessments as part of a larger study. Results suggest that cognitive escape was associated with higher number of anal sex partners (incidence rate ratio [IRR] = 1.50, SE = 0.04, p < .001), decreased condom use (B = -0.30, SE = 0.14, p = .028), and increased alcohol-related problems (IRR = 1.28, SE = 0.07, p = .001) but not with drinking quantity. Sexual motives for drinking appeared to partially mediate the observed relationship between cognitive escape and alcohol-related problems, but other relationships did not show evidence of mediation. Findings suggest that those who tend to avoid HIV-related thoughts may be at increased risk for HIV and alcohol-related problems. Drinking to facilitate sex may partially account for the higher risk for alcohol-related problems conferred by cognitive escape. Alcohol interventions for MSM may be more effective if they address alcohol's role in coping with HIV threat and in facilitating sex under these circumstances. PMID- 29336597 TI - Navigating emotions and relationship dynamics: family life review as a clinical tool for older adults during a relocation transition into an assisted living facility. AB - OBJECTIVE: Relocation for the purpose of receiving care may be one of the more challenging transitions for older adults. The purpose of this study was to facilitate a family life review (FLR) session aimed at enhancing family relationships and assisting older adults in coping with the challenges associated with a relocation. METHODS: Fourteen dyads comprised of older adults who relocated to an assisted living facility (ALF) and a chosen family member or friend participated in a FLR session and semi-structured follow up interview. Data were analyzed using the constant comparative method and triangulated with descriptive statistics. RESULTS: Emergent themes suggested participating in FLR influenced families by raising emotions, systemically thinking, and navigating the relocation. FLR facilitated positive connections, enhanced existing relationships, and promoted self-acceptance. Families indicated mutual storytelling was enjoyable and reminded them of the urgency to share their story. FLR allowed dyads to reflect and thus prompted a renewed perspective on some of the more challenging components of the relocation transition. CONCLUSION: Study findings provide insight into how families organize individual and interpersonal narratives and use these narratives during transitional times. FLR can aid families in making a smoother and fulfilling move to an ALF and other late life transitions. PMID- 29336598 TI - Quantitative MR Evaluation of Chronic Pancreatitis: Extracellular Volume Fraction and MR Relaxometry. AB - OBJECTIVE: The purpose of this study was to determine if extracellular volume fraction and T1 mapping can be used to diagnose chronic pancreatitis (CP). MATERIALS AND METHODS: This HIPAA-compliant study analyzed 143 consecutive patients with and without CP who underwent MR imaging between May 2016 and February 2017. Patients were selected for the study according to inclusion and exclusion criteria that considered history and clinical and laboratory findings. Eligible patients (n = 119) were grouped as normal (n = 60) or with mild (n = 22), moderate (n = 27), or severe (n = 10) CP on the basis of MRCP findings using the Cambridge classification as the reference standard. T1 maps were acquired in unenhanced and late contrast-enhanced phases using a 3D dual flip-angle gradient echo sequence. All patients were imaged on the same 3-T scanner using the same imaging parameters, contrast agent, and dosage. RESULTS: Mean extracellular volume fractions and T1 relaxation times were significantly different within the study groups (one-way ANOVA, p < 0.001). Using the AUC curve analysis, extracellular volume fraction of > 0.27 showed 92% sensitivity (54/59) and 77% specificity (46/60) for the diagnosis of CP (AUC = 0.90). A T1 relaxation time of > 950 ms revealed 64% sensitivity (38/59) and 88% specificity (53/60) (AUC = 0.80). Combining extracellular volume fraction and T1 mapping yielded sensitivity of 85% (50/59) and specificity of 92% (55/60) (AUC = 0.94). CONCLUSION: Extracellular volume fraction and T1 mapping may provide quantitative metrics for determining the presence and severity of acinar cell loss and aid in the diagnosis of CP. PMID- 29336599 TI - Femoral Neck Stress Injuries: Analysis of 156 Cases in a U.S. Military Population and Proposal of a New MRI Classification System. AB - OBJECTIVE: The objective of this study is to formulate a new MRI classification system for fatigue-type femoral neck stress injuries (FNSIs) that is based on patient management and return-to-duty (RTD) time. MATERIALS AND METHODS: A retrospective review of 156 consecutive FNSIs in 127 U.S. Army soldiers over a 24 month period was performed. The width of marrow edema for low-grade FNSIs and the measurement of macroscopic fracture as a percentage of femoral neck width for high-grade FNSIs were recorded. RTD time was available for 90 soldiers. Nonparametric testing, univariate linear regression, and survival analysis on RTD time were used in conjunction with patient management criteria to develop a new FNSI MRI classification system. RESULTS: The FNSI incidence was 0.09%, and all FNSIs were compressive-sided injuries. RTD time was significantly longer for high grade FNSIs versus low-grade FNSIs (p < 0.001). Our FNSI MRI classification system showed a significant difference in RTD time between grades 1 and 2 (p = 0.001-0.029), 1 and 3 (p < 0.001), and 1 and 4 (p = 0.001-0.01). There was no significant RTD time difference between the remaining grades. The rates of completing basic training (BT) and requiring medical discharge were significantly associated with the FNSI MRI grades (p = 0.038 and p = 0.001, respectively). CONCLUSION: The proposed FNSI MRI classification system provides a robust framework for patient management optimization by permitting differentiation between operative and nonoperative candidates, by allowing accurate prediction of RTD time, and by estimating the risk of not completing BT and requiring medical discharge from the military. PMID- 29336600 TI - Current Clinical Practice Patterns of Self-Identified Interventional Radiologists. AB - OBJECTIVE: The purpose of this study was to assess patterns of procedural, clinical evaluation and management (E/M), and diagnostic imaging services rendered by self-identified interventional radiologists (IRs) across the United States. MATERIALS AND METHODS: Recent Medicare Physician and Other Supplier Public Use and Physician Compare national downloadable files were linked. IRs were defined as physicians self-identifying interventional radiology as their primary specialty on Medicare claims or as a specialty during Medicare enrollment. The primary outcome measure was percentage of work (in work relative value units [WRVU]) attributed to interventional services (both procedural and E/M) per IR. Secondary outcome measures included sociodemographic factors per interventional WRVU quartile and percentage of E/M service units per IR. Statistical analysis included chi-square and t tests and logistic regression. RESULTS: Overall, 3132 physicians nationally self-identified to Medicare as IRs. The distribution of WRVU attributed to interventional services was strongly bimodal. Procedures and E/M together accounted for >= 91% and <= 5% of total work for the most and least intervention-oriented quartiles, respectively, but were widely distributed in the middle two quartiles. The most intervention-oriented self-identified IRs were more likely out of medical school <= 30 years (odds ratio [OR], 2.5; p < 0.0001), men (OR, 2.2; p < 0.0001), and in academic practice (OR, 4.3; p < 0.0001). E/M accounted for only 1.4% of all billed services. CONCLUSION: Although most self-identified IRs perform both interventional and diagnostic imaging services, the subspecialty distribution is strongly bimodal, one-quarter each focusing <= 5% and >= 91% of work on interventional services. Despite ongoing emphasis on clinically focused interventional radiology, E/M services remain rarely reported. PMID- 29336601 TI - JOURNAL CLUB: Computer-Aided Detection of Lung Nodules on CT With a Computerized Pulmonary Vessel Suppressed Function. AB - OBJECTIVE: The purpose of this study is to evaluate radiologists' performance in detecting actionable nodules on chest CT when aided by a pulmonary vessel image suppressed function and a computer-aided detection (CADe) system. MATERIALS AND METHODS: A novel computerized pulmonary vessel image-suppressed function with a built-in CADe (VIS/CADe) system was developed to assist radiologists in interpreting thoracic CT images. Twelve radiologists participated in a comparative study without and with the VIS/CADe using 324 cases (involving 95 cancers and 83 benign nodules). The ratio of nodule-free cases to cases with nodules was 2:1 in the study. Localization ROC (LROC) methods were used for analysis. RESULTS: In a stand-alone test, the VIS/CADe system detected 89.5% and 82.0% of malignant nodules and all nodules no smaller than 5 mm, respectively. The false-positive rate per CT study was 0.58. For the reader study, the mean area under the LROC curve (LROCAUC) for the detection of lung cancer significantly increased from 0.633 when unaided by VIS/CADe to 0.773 when aided by VIS/CADe (p < 0.01). For the detection of all clinically actionable nodules, the mean LROC-AUC significantly increased from 0.584 when unaided by VIS/CADe to 0.692 when detection was aided by VIS/CADe (p < 0.01). Radiologists detected 80.0% of cancers with VIS/CADe versus 64.45% of cancers unaided (p < 0.01); specificity decreased from 89.9% to 84.4% (p < 0.01). Radiologist interpretation time significantly decreased by 26%. CONCLUSION: The VIS/CADe system significantly increased radiologists' detection of cancers and actionable nodules with somewhat lower specificity. With use of the VIS/CADe system, radiologists increased their interpretation speed by a factor of approximately one-fourth. Our study suggests that the technique has the potential to assist radiologists in the detection of additional actionable nodules on thoracic CT. PMID- 29336602 TI - Surface Spectroscopic Signatures of Mechanical Deformation in High-Density Polyethylene (HDPE). AB - High-density polyethylene (HDPE) has been extensively studied, both as a model for semi-crystalline polymers and because of its own industrial utility. During cold drawing, crystalline regions of HDPE are known to break up and align with the direction of tensile load. Structural changes due to deformation should also manifest at the surface of the polymer, but until now, a detailed molecular understanding of how the surface responds to mechanical deformation has been lacking. This work establishes a precedent for using vibrational sum-frequency generation (VSFG) spectroscopy to investigate changes in the molecular-level structure of the surface of HDPE after cold drawing. X-ray diffraction (XRD) was used to confirm that the observed surface behavior corresponds to the expected bulk response. Before tensile loading, the VSFG spectra indicate that there is significant variability in the surface structure and tilt of the methylene groups away from the surface normal. After deformation, the VSFG spectroscopic signatures are notably different. These changes suggest that hydrocarbon chains at the surface of visibly necked HDPE are aligned with the direction of loading, while the associated methylene groups are oriented with the local C2v symmetry axis roughly parallel to the surface normal. Small amounts of unaltered material are also found at the surface of necked HDPE, with the relative amount of unaltered material decreasing as the amount of deformation increases. Aspects of the nonresonant SFG response in the transition zone between necked and undeformed polymer provide additional insight into the deformation process and may provide the first indication of mechanical deformation. Nonlinear surface spectroscopy can thus be used as a noninvasive and nondestructive tool to probe the stress history of a HPDE sample in situations where X-ray techniques are not available or not applicable. Vibrational sum-frequency generation thus has great potential as a platform for material state awareness (MSA) and should be considered as part of a broader suite of tools for such applications. PMID- 29336603 TI - Comparison of Unlicensed and Off-Label Use of Antipsychotics Prescribed to Child and Adolescent Psychiatric Outpatients for Treatment of Mental and Behavioral Disorders with Different Guidelines: The China Food and Drug Administration Versus the FDA. AB - OBJECTIVES: This study aims to compare the prevalence of unlicensed and off-label use of antipsychotics among child and adolescent psychiatric outpatients with guidelines proposed by the China Food and Drug Administration (CFDA) and the U.S. Food and Drug Administration (FDA), and to identify factors associated with inconsistencies between the two regulations. METHODS: A retrospective analysis of 29,326 drug prescriptions for child and adolescent outpatients from the Affiliated Brain Hospital of Guangzhou Medical University was conducted. Antipsychotics were classified as "unlicensed" or "off-label use" according to the latest pediatric license information registered by the CFDA and the FDA or the package inserts of antipsychotics authorized by the CFDA or the FDA for the treatment of pediatric mental and behavioral disorders, respectively. Binary logistic regression analysis was performed to assess factors associated with inconsistencies between the two regulations. RESULTS: The total unlicensed use, according to the CFDA analysis, was higher than that found in the FDA analysis (74.14% vs. 22.04%, p < 0.001). However, the total off-label use, according to the FDA analysis, was higher than that found in the CFDA analysis (46.53% vs. 15.77%, p < 0.001). Antipsychotic drug classes, age group, number of diagnoses, and diagnosis of schizophrenia and schizotypal and delusional disorders were associated with inconsistent unlicensed use. Antipsychotic drug classes, age group, number of prescribed psychotropic drugs, gender, diagnosis of schizophrenia and schizotypal and delusional disorders, diagnosis of mood [affective] disorders, diagnosis of mental retardation, and diagnosis of psychological development disorders were associated with inconsistent off-label use. CONCLUSIONS: The difference in prevalence of total unlicensed and off-label use of antipsychotics between the two regulations was statistically significant. This inconsistency could be partly attributed to differences in pediatric license information and package inserts of antipsychotics. The results indicate a need for further clinical pediatric studies and better harmonization between agencies regarding antipsychotic used in pediatrics. PMID- 29336604 TI - Family Functioning and Mental Health of Transgender and Gender-Nonconforming Youth in the Trans Teen and Family Narratives Project. AB - Transgender and gender-nonconforming (TGN) youth are at increased risk for adverse mental health outcomes, but better family functioning may be protective. This study describes TGN youth's mental health and associations with family functioning in a community-based sample. Participants were from 33 families (96 family members) and included 33 TGN youth, ages 13 to 17 years; 48 cisgender (non transgender) caregivers; and 15 cisgender siblings. Participants completed a survey with measures of family functioning (family communication, family satisfaction) and mental health of TGN youth (suicidality, self-harm, depression, anxiety, self-esteem, resilience). TGN youth reported a high risk of mental health concerns: suicidality (15% to 30%), self-harm (49%), clinically significant depressive symptoms (61%); and moderate self-esteem (M = 27.55, SD = 7.15) and resiliency (M = 3.67, SD = 0.53). In adjusted models, better family functioning from the TGN youth's perspective was associated with better mental health outcomes among TGN youth (beta ranged from -0.40 to -0.65 for self-harm, depressive symptoms, and anxious symptoms, and 0.58 to 0.70 for self-esteem and resiliency). Findings from this study highlight the importance of considering TGN youth's perspectives on the family to inform interventions to improve family functioning in families with TGN youth. PMID- 29336606 TI - Update on Molecular Testing for Cytologically Indeterminate Thyroid Nodules. AB - CONTEXT: - Approximately 15% to 30% of thyroid nodules that undergo fine-needle aspiration are classified as cytologically indeterminate, presenting management challenges for patients and clinicians alike. During the past several years, several molecular tests have been developed to reduce the diagnostic uncertainty of indeterminate thyroid fine-needle aspirations. OBJECTIVE: - To review the methodology, clinical validation, and recent peer-reviewed literature for 4 molecular tests that are currently marketed for cytologically indeterminate thyroid fine-needle aspiration specimens: Afirma, ThyroSeq, ThyGenX/ThyraMIR, and RosettaGX Reveal. DATA SOURCES: - Peer-reviewed literature retrieved from PubMed search, data provided by company websites and representatives, and authors' personal experiences. CONCLUSIONS: - The 4 commercially available molecular tests for thyroid cytology offer unique approaches to improve the risk stratification of thyroid nodules. Familiarity with data from the validation studies as well as the emerging literature about test performance in the postvalidation setting can help users to select and interpret these tests in a clinically meaningful way. PMID- 29336605 TI - Colorectal Carcinomas With Isolated Loss of PMS2 Staining by Immunohistochemistry. AB - CONTEXT: - Isolated loss of PMS2 staining is an uncommon immunophenotype in colorectal carcinomas, accounting for approximately 4% of tumors with microsatellite instability. Limited information regarding these tumors is available in the literature. OBJECTIVE: - To compare the clinicopathologic features of colorectal carcinomas with isolated PMS2 loss by immunohistochemistry to those with other forms of mismatch repair deficiency. DESIGN: - Ninety-three colorectal carcinomas with isolated PMS2 loss by immunohistochemistry and 193 with other forms of mismatch repair deficiency were identified. Forty (43%) of the isolated PMS2 loss cases and 35 control cases (18%) had a known germline mutation or a clinical diagnosis of Lynch syndrome. RESULTS: - Overall, isolated PMS2-loss tumors occurred in significantly younger patients ( P < .001) and in fewer female patients ( P = .006). These tumors were significantly less likely to be right-sided ( P = .001), high-grade ( P = .01), or display histologic features of microsatellite instability ( P < .001). The isolated PMS2-loss group also exhibited increased odds of disease-specific death (odds ratio [OR], 3.09; 95% CI, 1.41-6.85; P = .007). When the analysis was restricted to germline mutation/Lynch syndrome cases and controls, no significant differences were detected for age, sex, tumor location, tumor grade, histologic features, or distant metastases, although a trend toward increased odds of disease-specific death in the isolated PMS2-loss group was evident (OR, 3.87; 95% CI, 0.89-27.04; P = .10). CONCLUSIONS: - Unusual clinicopathologic features observed in colorectal carcinomas with isolated PMS2 loss are likely related to the high proportion of cases caused by germline mutations. Isolated PMS2-loss tumors may demonstrate more aggressive behavior than other tumors with microsatellite instability, but larger studies are needed to investigate that possibility further. PMID- 29336607 TI - Alu siRNA to increase Alu element methylation and prevent DNA damage. AB - : Global DNA hypomethylation promoting genomic instability leads to cancer and deterioration of human health with age. AIM: To invent a biotechnology that can reprogram this process. METHODS: We used Alu siRNA to direct Alu interspersed repetitive sequences methylation in human cells. We evaluated the correlation between DNA damage and Alu methylation levels. RESULTS: We observed an inverse correlation between Alu element methylation and endogenous DNA damage in white blood cells. Cells transfected with Alu siRNA exhibited high Alu methylation levels, increased proliferation, reduced endogenous DNA damage and improved resistance to DNA damaging agents. CONCLUSION: Alu methylation stabilizes the genome by preventing accumulation of DNA damage. Alu siRNA could be useful for evaluating reprograming of the global hypomethylation phenotype in cancer and aging cells. PMID- 29336608 TI - Prevalence of frailty and its association with depressive symptoms among older adults in Singapore. AB - OBJECTIVES: The aims of the study were to (1) estimate the prevalence of frailty among community-dwelling older adults , and (2) investigate the independent association between level of frailty and depressive symptoms. METHODS: A total of 721 older adults (aged 60 and above ) were included in this study. Severity of frailty was determined using the Clinical Frailty Scale and further classified into four levels (CFS1-3: F1, CFS4: F2, CFS5: F3, and CFS6-7: F4). The depressive symptoms were assessed using the Patient Health Questionnaire-9. The prevalence of frailty by four levels was described and the association between level of frailty and depressive symptoms was assessed using multiple linear regression. RESULTS: The prevalence of frailty among the study population was 24.5% (F2: 14.4%, F3:3.7%, F4: 6.4%). There was no significant difference in level of frailty between male and female. With the increase in severity level of frailty, older adults reported substantially higher depressive symptom scores (p < .001), even after controlling for socio-demographics, number of non-mental chronic conditions, and number of medications taken regularly. CONCLUSIONS: Level of frailty is independently associated with depressive symptoms among community dwelling older population, which is not fully explained by symptom overlap, socio demographic, and comorbidity covariates. PMID- 29336609 TI - Fibroblast growth factor 23 (FGF23) gene polymorphisms are associated with essential hypertension risk and blood pressure levels in Chinese Han population. AB - In this case-control study, 246 EH patients and 157 healthy controls were selected from Chinese Han population to explore the associations between the fibroblast growth factor 23 (FGF23) gene polymorphisms and essential hypertension (EH).The SequenomMassarray system was used for the genotyping of three FGF23 gene Tag single-nucleotide polymorphisms, namely rs7955866, rs13312756, and rs3812822. The primers were designed by Assay Designer 3.1 software, and then the samples were added to a 384-well plate for the polymerase chain reaction amplification, shrimp alkaline phosphatase reaction, and desalting after extension. The distributions of the alleles, genotypes, and haplotypes were compared between the two groups. Confounding factors (sex, age, BMI, smoking, and drinking) were adjusted in the non-logistic regression, and the results showed that rs7955866 and rs3812822 polymorphisms were independently associated with the risk of developing EH (P < 0.05). The statistical analysis of the haplotype of rs7955866 rs13312756-rs3812822 showed that haplotype ACC could increase the risk of developing EH (P = 0.046; OR = 1.513, 95%CI: 1.005-2.278). The analysis of the control group showed that carrying rs7955866 A allele (P = 0.031) and rs3812822 C allele (P = 0.025) was associated with the increase of systolic blood pressure (SBP). The insulin (INS) level in the peripheral blood was significantly different between the case and control groups (P = 0.014). After confounding factors were excluded, the results showed that the serum INS level was also an independent risk factor of developing EH (P = 0.044; OR = 1.604, 95%CI: 1.014 2.539). In summary, our results suggest that FGF23 gene polymorphisms are associated with the risk of developing EH in Chinese Han population. PMID- 29336610 TI - NrF2/ARE and NF-kappaB pathway regulation may be the mechanism for lutein inhibition of human breast cancer cell. AB - AIM: Though lutein can inhibit cancer cell proliferation via alleviating oxidative injury, the molecular mechanisms of lutein involvement in the NrF2/antioxidant response element (ARE) and NF-kappaB pathways remain poorly understood. MATERIALS & METHODS: MTT, flow cytometry, quantitative real-time PCR (qRT-PCR) and western blot assays were performed. RESULTS: After treatment with lutein, breast cancer cell proliferation was significantly decreased in a dose dependent manner. Lutein induced nuclear translocation and protein expression of NrF2, improved the expression of cellular antioxidant enzymes and attenuated reactive oxygen species levels. Moreover, lutein treatment decreased NF-kappaB signaling pathway related NF-kappaB p65 protein expression. CONCLUSION: The effect of lutein antiproliferation was mediated by activation of the NrF2/ARE pathway, and blocking of the NF-kappaB signaling pathway. PMID- 29336611 TI - Interventions to improve benzodiazepine tapering success in the elderly: a systematic review. AB - BACKGROUND: Long-term benzodiazepine use in the elderly population is a significant public health problem that leads to impaired cognitive functioning, medication dependence and increased risks for adverse drug reactions. The aim of this review was to examine randomized controlled trials (RCTs) on the efficacy of different methods for tapering and discontinuing benzodiazepines. METHOD: We used four databases (Ovid, PubMed, Academic Search Complete, Web of Science) to retrieve randomized controlled trials published in peer-reviewed journals that explored different methods for tapering benzodiazepine use in a primarily geriatric population. RESULTS: Eleven papers met the inclusion criteria. Methods to assist in benzodiazepine tapering included patient education, cognitive behavioural therapy (CBT), and pharmaceutical adjuvants (SSRIs, melatonin, progesterone). Patient education was consistently effective in increasing benzodiazepine discontinuation success while CBT had mixed but promising results. The use of medications to help improve tapering success was inconclusive. CONCLUSIONS: Patient education is a successful, time- and cost-effective intervention that can significantly help with benzodiazepine discontinuation success. CBT may also be an effective approach. However, cost can be an issue since public healthcare coverage in Canada does not cover psychotherapy. More research is needed in looking at pharmaceutical adjuvants and their role in assisting with benzodiazepine discontinuation. PMID- 29336613 TI - Breastfeeding: The Road Less Traveled. PMID- 29336612 TI - Relationship among adiponectin, insulin resistance and atherosclerosis in non diabetic hypertensive patients and healthy adults. AB - Adiponectin, which is secreted specifically by adipose tissue, has been shown to have anti-atherogenic and anti-inflammatory effects and to improve insulin resistance (IR). The aim of this study was to determine the correlations among adiponectin, IR and atherosclerosis in non-diabetic hypertensive patients and healthy volunteers. In this case control study, we collected complete demographic data from and measured several laboratory parameters in all enrolled subjects. The homeostasis model of assessment for insulin resistance (HOMA-IR) was calculated as an insulin sensitivity index. The atherogenic index of plasma (AIP), which is calculated as log (triglyceride (TG)/high-density lipoprotein cholesterol (HDL-C)), was a significant predictor of atherosclerosis and was a better predictor of atherosclerosis than low-density lipoprotein cholesterol (LDL C). Plasma adiponectin, interleukin (IL)-6, monocyte chemoattractant protein-1 (MCP-1) and matrix metalloprotein-9 (MMP-9) concentrations were determined using enzyme-linked immunosorbent assay (ELISA). All data were analyzed using Statistical Product and Service Solutions for Windows (SPSS) 13.0 software. A total of 309 participants were enrolled in the study. Hypertensive patients with IR (n = 93) displayed significantly higher HOMA-IR values and AIPs and lower adiponectin levels than hypertensive patients without IR (n = 121) and healthy adults (n = 95) (P < 0.05). Furthermore, circulating IL-6, MCP-1 and MMP-9 concentrations differed significantly between hypertensive patients and healthy adults (P < 0.05). Additionally, adiponectin levels were found to be inversely correlated with IL-6, MCP-1, and MMP-9 levels; HOMA-IR values; and AIPs in the clinical study. HOMA-IR values and adiponectin and creatinine (Cr) concentrations remained independently associated with AIPs in all participants after adjustment for confounders via multivariate linear regression. Low adiponectin levels are positively correlated with decreased insulin sensitivity, increased pro inflammatory cytokine production and worsening atherosclerosis in hypertensive patients and healthy adults. PMID- 29336614 TI - Evaluation of Corneal Parameters with Dual Scheimpflug Imaging in Patients with Systemic Sclerosis. AB - PURPOSE: To evaluate the cornea of systemic sclerosis (SSc) patients with Dual Scheimpflug Imaging. METHODS: Twenty consecutive SSc patients and 20 age and sex matched controls were enrolled in this cross-sectional study. Corneal measurements were acquired by dual Scheimpflug analyzer. RESULTS: SSc patients had statistically significant steeper corneas than the control group. The mean anterior curvature-average (SimK) was 44.93 +/- 1.64 D (mean +/- standard deviation) in SSc and 43.61 +/- 0.99D in control group, p = 0.01. Posterior curvature was also steeper in SSc patients compared to controls (p = 0.02). There was no statistically significant difference regarding central average pachymetry (p = 0.07), thinnest pachymetry (p = 0.09). CONCLUSIONS: Patients with SSc present with steeper corneas than controls. PMID- 29336615 TI - Pharmacokinetic bioequivalence, safety and acceptability of Ornibel(r), a new polymer composition contraceptive vaginal ring (etonogestrel/ethinylestradiol 11.00/3.474 mg) compared with Nuvaring(r) (etonogestrel/ethinylestradiol 11.7/2.7 mg). AB - OBJECTIVE: To show the clinical development of Ornibel(r) (ExeltisHealthcare, Spain) a contraceptive vaginal ring manufactured with a new polymer composition and containing etonogestrel/ethinylestradiol, compared to Nuvaring(r) (MSD, Spain). SUBJECTS AND METHODS: Randomised, single dose, 2-period, 2-sequence, 2 stage crossover, comparative bioavailability study conducted in 40 healthy female subjects. All subjects received both treatments for 28 days in each of two periods, separated by a 28 days washout. Ornibel(r) contains etonogestrel/ethinylestradiol 11.00/3.47 mg and Nuvaring(r) contains etonogestrel/ethinylestradiol 11.7/2.7 mg, both rings delivering 120/15 ug/day. For the calculation of pharmacokinetic parameters, 37 blood samples were collected up to 840 h after each ring insertion to quantify plasma concentrations of etonogestrel and ethinylestradiol using a validated MS/MS-HPLC. Safety was assessed by adverse events recording, clinical laboratory and vital signs and tolerability by vaginal examination. Acceptability was investigated by a 5-point scale questionnaire. RESULTS: Bioequivalence was demonstrated in the first stage as the 94.12% Confidence Intervals of the primary parameters laid within the 80 125% acceptance range for both etonogestrel (Cmax: 96.81-112.20%; AUC0-504h: 98.71-108.61%; AUC0-t: 100.14-109.10%) and ethinylestradiol. (Cmax: 105.91 120.62%; AUC0-504h: 105.47-114.59%; AUC0-t: 108.31-117.61%). During the first day of use a burst effect was observed with Nuvaring(r), with significantly higher level of ethinylestradiol (Cmax0-24h ratio: 78.34%, 94.12CI: 73.55-83.45%). Both products were well tolerated and accepted, without significant differences between them. CONCLUSION: Ornibel(r) is bioequivalent to Nuvaring(r) in terms of efficacy, safety, tolerability and acceptability. The new polymer composition provides Ornibel(r) with more stability and gradual hormonal release during the first day of use, particularly for ethinylestradiol. PMID- 29336616 TI - Study of the osteoprotegerin/receptor activator of nuclear factor-kB ligand system association with inflammation and atherosclerosis in systemic sclerosis. AB - OBJECTIVE: we aimed to study systemic sclerosis patients in order to assess osteoprotegerin/Receptor activator of nuclear factor-kB ligand (OPG/RANKL) system and find the relation of these biomarkers with the clinical features of the disease, the carotid intima thickness, markers of inflammation, lipid profile, and other laboratory characteristics. METHODS: both the level of (RANKL), (OPG) in sera of participants, in 30 (SSc) patients and the atherosclerotic changes affecting the common carotid artery were measured and, were compared to 30 healthy controls matched for age and sex. All participants were assessed clinically and subjected to the Revised Medsger SSc severity scale and underwent carotid Doppler ultrasound examination. RESULTS: OPG, RANKL, and RANKL/OPG were 1.9 +/- 0.4 ng/ml, 24.3 +/- 17.25 ng/ml, and 13.5 +/-9.8 versus 0.77 +/- 0.25 ng/ml, 7.13 +/- 3.02 ng/ml, and 9.6 +/- 3.1 in the SSc patients and the controls with significance (P = 0.001, P = 0.001, P = 0.045) respectively. The OPG- RANKL axis in the SSc patients correlated significantly with carotid intima thickness, arthritis, arthralgia, inflammatory markers, Medsger joint, Medsger vascular, Medsger skin, and dyslipidemia. CONCLUSION: In cardiovascular risks, OPG serum level might increase as a preventive compensatory mechanism to neutralize the RANKL level increment. The determination of the OPG-RANKL system is a diagnostic indicator for the intensity of vascular calcification and atherosclerosis in SSc patients. PMID- 29336617 TI - Incidental neuroblastoma with bilateral retinoblastoma: what are the chances? AB - A child with bilateral familial retinoblastoma underwent staging MRI brain and orbit which identified subtle leptomeningeal enhancement, thus prompting an MRI whole body, which revealed a retroperitoneal mass, confirmed on laparoscopic biopsy to be neuroblastoma. This is the first reported case of these two rare embryonal non-central nervous system tumors occurring concurrently. The cause of this concurrence is unknown despite their pathogenic similarities with a chance of 4 cases per 10 billion children aged 1-4 years. Incidental neuroblastomas in infants can regress spontaneously but this child underwent systemic chemotherapy for his retinoblastoma that may have caused regression of the neuroblastoma. PMID- 29336619 TI - Minimally Invasive Nerve-Sparing Radical Hysterectomy: A Win-Win Scenario. PMID- 29336618 TI - Rheumatoid arthritis: A single-center Egyptian experience. AB - OBJECTIVE: Demonstration of rheumatoid arthritis (RA) characteristics in a large cohort of Egyptian patients. METHODS: Retrospective analysis of data of 3219 RA patients attending the Rheumatology outpatient clinic, Kasr Alainy Hospital, Cairo University; from January 1995 till December 2015. RESULTS: Mean age at disease onset was 36.1 +/-13.4 years; 2774 (84%) were females and mean disease duration was 12.9 +/-7.9 years. Regarding number of joint affected at disease onset; polyarticular pattern was found in 77.1%, pattern of joint involvement; combined small and large joints involvement was in 83.2%, subcutaneous nodules in 14.2%, interstitial lung disease in 0.3%, secondary Sjogren's syndrome in 10.5%, hand bony erosions at diagnosis in 20.6%. Rheumatoid factor was positive in 52%. There was annual increase in the newly diagnosed cases (P = 0.017) reflecting increase in patients' awareness and improvement of medical service, also annual increase in: mean age of onset (P < 0.001) reflecting changes in health measures, also in cases with monoarticular or oligoarticular patterns at disease onset (P = 0.02, 0.01 respectively) reflecting earlier diagnosis of patients and in patients with small joint involvement (P = 0.001) with a significant decline in: polyarticular pattern (P = 0.001), combined small and large joint affection (P < 0.001), and number of cases with hand bony erosions (P = 0.01) denoting earlier diagnosis, tight disease control. CONCLUSION: We found a female predominance, younger age at disease onset, lower frequency of extra articular manifestations, more frequent polyarticular pattern at disease onset and less erosive disease, denoting changing referral patterns, earlier diagnosis, improved disease control in Egyptian RA patients over 2 decades. ABBREVIATIONS: SNs: Subcutaneous nodules; 2ry SS: 2ry Sjogren's syndrome; ILD: Interstitial lung disease; ACPA: Anti-cyclic citrullinated peptide antibodies; DMARDs: Disease modifying anti-rheumatic drugs. PMID- 29336620 TI - The role of the PI3K/mTOR signaling pathway in Staphylococcus epidermidis small colony variants intracellular survival. AB - The objective of this study was to analyze how Staphylococcus epidermidis SCV and WT strains manipulate the PI3K/Akt/mTOR signaling pathway. Six S. epidermidis strains with normal phenotype (WT) and six S. epidermidis strains with SCV phenotype were isolated in parallel from six patients with the prosthetic hip joint infections. THP-1 activated cells were incubated with or without PI3K inhibitor-wortmannin or with mTOR inhibitor-rapamycin. Next, macrophages were exposed to S. epidermidis WT and SCV strains. After 4 h incubation, bacterial survival inside macrophages as well as PI3K-mTOR activation was analyzed. SCV strains of S. epidermidis increased the level of Akt phosphorylation, compared to uninfected macrophages and to their parental WT forms. Wild type variants of S. epidermidis phosphorylated Akt at similar or lower levels as control uninfected cells. Next, the induction of mTOR target, phosphorylated ribosomal protein S6, was measured in bacteria-infected macrophages. The level of phosphorylation was significantly reduced when the cells were exposed to WT strains of S. epidermidis. In contrast, the SCV strains activated S6 protein mostly at a level comparable to the control cells. Rapamycin inhibited mTOR activation as the number of p-S6 positive cells decreased in the tested cases. To conclude, the SCV strains activate the PI3K-Akt signaling pathway in opposite to WT strains. This fact however did not influence the increase in the number of live SCV bacteria as compared to the WT strains. Knowing that the PI3K-Akt pathway is involved in proinflammatory cytokines suppression, SCVs seem to use this pathway to reduce the inflammatory response during the infection. PMID- 29336621 TI - Beta-Alanine Does Not Enhance the Effects of Resistance Training in Older Adults. AB - To investigate the potential of beta-alanine to increase muscular endurance of elder individuals in specific resistance-training protocols, we randomly assigned 27 participants (60-82 years of age) to a 12-week double-blind intervention using 3.2 g/day beta-alanine or placebo with or without resistance training to determine the effects on anthropometrics, muscular performance, and activities of daily living (ADL). The endurance-based resistance-training program (ERT) was given three times per week and included two sets of 15-25 repetitions on 11 computerized pneumatic machines (alternating upper and lower body) at an intensity of 50% of maximum lifting weight (1RM). Mixed design analysis of variance (ANOVA) revealed no significant group * time interactions (p > .05) for any anthropometric or strength measures except 1RM leg press (p = .010). A post hoc analysis revealed significant improvements in 1RM leg press for both the resistance-training groups (p < .001) but no significant between-group difference attributable to beta-alanine. For the 20-repetition chest and leg press tests, no main effects of beta-alanine or group * time interactions for the exercise versus control groups were observed. Pairwise comparisons, however, did reveal significant improvements in peak and average power for both tests and fatigue index for the chest press in resistance-training groups. Although beta-alanine had no effect on any measures, the ERT program did positively affect three performance variables: 1RM, mechanical power, and fatigue patterns during muscular endurance testing. Future research should examine beta-alanine with different dosages and training programs to expand upon our findings using endurance-based resistance training. PMID- 29336622 TI - Nutritional Supplement and Functional Food Use Among Medical Students in India. AB - This study was conducted to assess the pattern of use of nutritional supplements (NSs) and functional foods (FFs), reasons for their use, factors influencing their use, and perception toward their use among medical students. Data were collected from 400 randomly chosen participants using a self-administered semistructured questionnaire. The most common source of information on these substances was from medical professionals (n = 140 [35%]). Multivitamins were consumed by 48 (45.3%) participants. Most common reasons stated for the use of supplements were for good health (n = 39 [36.8%]), doctor's prescription (n = 36 [34%]), and to balance a poor diet (n = 34 [32.1%]). Sixty-six (62.3%) users used NSs on a daily or more than once daily basis. In 17.9% of the users, supplements were not recommended by a doctor or a dietician. The use of NSs was significantly more among females (p < .001), participants who exercised regularly (p < .001), participants who habitually skipped breakfast (p = 0.04), those with a family history of use of these products (p < .001), and those with "poor to fair" self rated health (p = .017). Use of FFs was associated with family history of use (p < .001) and intensity of exercise (p = .039). Participants who significantly used multiple NSs in this study were those who were vegetarians (p = .044) and those with "poor to fair" self-rated health (p = .047). Participants who used multiple FFs were female (p < .001). Only 18 (16.9%) users felt that regular use of NSs results in side effects. In multivariate analysis, family history of NS use was found to influence its usage among participants (p < 0.001). It is a matter of concern that there is lack of knowledge on NSs and FFs among medical students. Therefore, they need to learn more about the indications and the safety of prescription of these products. PMID- 29336623 TI - The Effect of Phytosterol-Rich Fraction from Palm Fatty Acid Distillate on Blood Serum Lipid Profile of Dyslipidemia Rats. AB - Phytosterol-rich fraction (PRF) obtained from palm fatty acid distillate (PFAD) was investigated for its effect on blood serum lipid profile of dyslipidemia rats. Dyslipidemia was induced by force feeding cholesterol to five groups of rats; one group was a control or normal group. Cholesterol force-fed groups were treated with 0, 10, 20, 30, and 40 mg PRF/kg/day for 4 weeks. All groups of rats were fed standard diet. A normal group was fed standard diet without PRF treatment and cholesterol force feeding. Lipid profile was measured every week (0, 1, 2, 3, and 4). Four-week treatment resulted in significant blood serum lipid profile improvement. PRF improved blood serum lipid profile by decreasing total cholesterol, triglyceride, and low density lipoprotein (LDL) cholesterol level and increasing high density lipoprotein (HDL) cholesterol level. The doses of PRF significantly affected blood serum lipid profile as well as duration of PRF treatment. PRF inhibited cholesterol absorption, which delayed blood serum total cholesterol rise. Cholesterol absorption inhibition was also indicated by higher fecal cholesterol concentration after PRF feeding. These results indicate the beneficial effect of PRF in the treatment of dyslipidemia. PMID- 29336624 TI - Potential Molecular Targets in the Treatment of Lung Cancer Using siRNA Technology. AB - Lung cancer is the leading cause of cancer-related mortality with about 1.6 million deaths every year worldwide. Gene mutations and overexpression of oncogenes play a central role in malignant transformation in NSCLC. Conventional approaches for treatments of NSCLC have shown low levels of success while showing severe side effects. Target therapy using siRNA has recently emerged as a new strategy for cancer treatment by specific targeting of genes involved in the development and metastasis of cancer. This article dedicated to an update review of molecular targets could potentially be used for target therapy of lung cancer using SiRNA technology. PMID- 29336625 TI - The Clavien-Dindo Classification in Pancreatic Surgery: A Clinical and Economic Validation. AB - BACKGROUND/AIMS: In 2004 P. A. Clavien and D. Dindo published the well-known grading system of postoperative complications. It is established in several surgical disciplines. The aim of this study was to assess its validity in pancreatic surgery. The impact of complication grade on economic resources was investigated as well. METHODS: From a prospective database, we retrospectively evaluated all patients who underwent pancreatic resection between January 2009 and December 2014 at our department. 309 patients received pancreatic head resection (pylorus-preserving pancreatoduodenectomy (PPPD) or Kausch-Whipple), total pancreatectomy or left resection. We performed a univariate analysis of the correlation between the Clavien-Dindo classification-grade (CDC-grade) with length of postoperative stay (LOS) and DRG-related (diagnosis related groups) remuneration using Kruskal-Wallis test. Furthermore, we performed a subgroup analysis (chi-square test and Fishers-test) of demographic, clinical, and perioperative data. RESULTS: American Society of Anesthesiologists (ASA) score (p = 0.0014), operation time (p = 0.0229) and intraoperative blood loss (p = 0.0016) showed significant correlation with CDC-grade. Increasing LOS and DRG-related remuneration correlated significantly with increasing CDC-grade (p < 0.0001). CONCLUSION: The CDC-grading system shows high correlation to clinical outcome and case-related remuneration in pancreatic surgery. Therefore, it is a valid tool for evaluation and comparison of surgical techniques and surgical centers. PMID- 29336626 TI - Antihypertensive monotherapy or combined therapy: which is more effective on functional status? AB - BACKGROUND: This study aims to analyze the effects of anti-hypertensive monotherapy and combined therapy on functional status, and cardiovascular risk outcomes in older adults. METHODS: This longitudinal non-randomized cohort study, involved hypertensive older adults (n = 440) aged 60 or more years with comorbidities. Participants underwent a community exercise training program and one of the following 2 conditions: i) use of daily mono-dose angiotensin converting enzyme inhibitors (ACEi; n= 232); ii) combined therapy including ACEi plus other class agent (Combined; n= 208). Baseline and 2-year follow-up evaluations included the functional fitness, health-related quality of life (HRQoL), health history questionnaires, anthropometric and hemodynamic profile. RESULTS: Both experimental groups have significantly improved physical functional status, and have significantly decreased blood pressure and waist circumference. ACEi group has significantly reduced body mass and body mass index, the Combined group significantly reduced the waist-to-hip ratio. Additionally, both groups perceived better physical HRQoL. CONCLUSIONS: Functional status has improved with ACEi medication and exercise training, regardless the ACEi medication therapy. Exercise training plus ACEi antihypertensive therapy should be recommended into the standard prescription practice to reduce the rate of physical disability among hypertensive older adults. PMID- 29336627 TI - Clinical Severity Classification using Automated Conjunctival Hyperemia Analysis Software in Patients with Superior Limbic Keratoconjunctivitis. AB - PURPOSE: Digitization of clinical observation is necessary for assessing the severity of superior limbic keratoconjunctivitis (SLK). This study aimed to use a novel quantitative marker to examine hyperemia in patients with SLK. MATERIALS AND METHODS: We included six eyes of six patients with both dry eye disease and SLK (SLK group) and eight eyes of eight patients with Sjogren syndrome (SS group). We simultaneously obtained the objective finding scores by using slit lamp examination and calculated the superior hyperemia index (SHI) with an automated conjunctival hyperemia analysis software by using photographs of the anterior segment. Three objective finding scores, including papillary formation of the superior palpebral conjunctiva, superior limbal hyperemia and swelling, and superior corneal epitheliopathy, were determined. The SHI was calculated as the superior/temporal ratio of bulbar conjunctival hyperemia by using the software. Fisher's exact test was used to compare a high SHI (>=1.07) ratio between the SLK and SS groups. P-Values < 0.05 were considered statistically significant. RESULTS: The SHI (mean +/- standard deviation) in the SLK and SS groups was 1.19 +/- 0.50 and 0.69 +/- 0.24, respectively. The number of patients with a high SHI (>=1.07) was significantly higher in the SLK group than in the SS group (p < 0.05). The sensitivity and specificity of the SHI in the differential diagnosis between SS and SLK were 66.7% and 87.5%, respectively. An analysis of the association between the objective finding scores and SHI showed that the SHI had a tendency to indicate the severity of superior limbal hyperemia and swelling score in the SLK group. CONCLUSION: The SHI calculated using the automated conjunctival hyperemia analysis software could successfully quantify superior bulbar conjunctival hyperemia and may be a useful tool for the differential diagnosis between SS and SLK and for the quantitative follow-up of patients with SLK. PMID- 29336628 TI - Effect of Multi-Ingredient Supplement Containing Satiereal, Naringin, and Vitamin D on Body Composition, Mood, and Satiety in Overweight Adults. AB - The purpose of this investigation was to examine the effects of 28 days of a dietary supplement on body composition, mood, and satiety in overweight adults. Twenty healthy adults (25.5 +/- 3.8 years; 87.3 +/- 20.7 kg; 169.9 +/- 10.6 cm; 29.9 +/- 5.1 body mass index) participated in this randomized, double-blind, placebo-controlled investigation. Ten participants were provided with a dietary supplement containing 178 mg satiereal, 100 mg naringin, and 2,000 IU vitamin D3 daily (SUPP), and ten participants were provided a placebo (PL) for 28 days. Baseline (PRE) and post (POST) assessments included body mass, BMI, and waist circumference measures. In addition, participants provided self-reported food records and completed study questionnaires twice weekly. Questionnaires consisted of profile of mood states, visual analog scales, modified trait food-cravings questionnaire, and a modified state food-cravings questionnaire. No significant differences were noted between groups for total calorie or macronutrient intake (p = 0.65-0.92), body mass (p = 0.34), BMI (p = 0.24), or waist circumference measures (p = 0.56-0.94). In addition, no significant differences between groups were observed for mood states, subjective measures of food cravings, or feelings of anxiety, fullness, bloating, hunger, craving, and stress (p >.05). In conclusion, 28 days of a dietary supplement containing satiereal, naringin, and vitamin D3 did not have any detectable beneficial effects on body-weight management. PMID- 29336629 TI - Pupillary manifestations of Marfan syndrome: from the Marfan eye consortium of Chicago. AB - BACKGROUND: Marfan syndrome (MFS) is a genetic disorder that affects multiple organ systems, including the eye. The most common ocular manifestations include ectopia lentis and retinal detachment. The current literature qualitatively cites that MFS patients have miotic or "poorly dilating" pupils. This study was the first to quantitatively assess pupillary function in MFS patients. MATERIALS AND METHODS: 57 eyes from 29 MFS patients, 36 eyes from 18 pediatric age- and gender matched controls, and 44 eyes from 22 adult age-matched controls were measured in a clinic-based cross sectional study. Pupillometry data were measured in scotopic conditions using the handheld NeurOptics PLR-200TM Pupillometer (NeurOptics, Irvine, CA, USA). Data obtained with the pupillometer were maximum and minimum diameter, constriction percentage, latency, average and maximum constriction velocities, average dilation velocity, and 75% recovery time (T75). RESULTS: Pediatric patients with MFS had significantly slower average constriction velocity measurements (beta = 0.65, p = 0.0003), maximum constriction velocity measurements (beta = 0.51, p = 0.0150) and average dilation velocity measurements (beta = -0.19, p = 0.0029) compared to control patients. In the adult cohort, results indicated significantly slower average dilation velocity measurements (beta = -0.13, p = 0.0077) compared to controls. CONCLUSIONS: Our data highlight pupillary parameters within a population of MFS patients under scotopic conditions. Constriction and dilation velocities were slower in the pediatric MFS patients compared to age- and gender-matched controls, and dilation velocities were slower in the adult MFS patients compared to age-matched controls. These findings, for the first time, quantitatively demonstrated differences in pupillary function in patients with MFS. PMID- 29336630 TI - Ameliorating Role of Lycopene, Tomato Puree, and Spirulina + Tomato Puree on the Hematology of Fluoride-Exposed Swiss Albino Mice. AB - Plant species rich in antioxidants (vitamins, flavonoids, lignans, and carotenoids) have been explored for complementary therapy of chronic diseases (cancers, coronary heart disease) and mitigation of pollutant toxicity. This article investigates their ameliorative role on selective hematological and serum biochemical parameters in fluoride-exposed (190 mg/kg body weight) Swiss albino mice pretreated with the antioxidant-rich diet supplements tomato puree (with and without peels), spirulina (cyanobacteria), and lycopene (present in tomato) for 45 days prior to entry into experimental protocol. Compared with standard feed control, diet-modulated controls had more hairy and lustrous white fur, hemodilution, increase in platelet counts (2- to 5-fold), red blood cell (RBC) size (11%-14%), mean corpuscular hemoglobin (Hb) concentration (MCHC; 5%-14%), and serum albumin (23%-27%). Fluoride-exposed mice reared on standard feed had less hairy, pale white, lusterless fur and black nails, reduction in RBC and white blood cell (WBC) counts and Hb content, and morphological abnormalities in RBCs (poikilocytosis). By contrast, fur quality of fluoride-treated diet modulated groups was similar to standard feed control; counts and morphology of their RBCs and Hb content similar to the respective controls, and increase in WBC counts greater than controls. In comparison to the fluoride-treated standard feed group, platelet counts were higher in the treated mice of the diet-modulated groups. This study thus revealed the hemoprotective role of diet supplements in fluoride-treated mice. Considering the prevalence of fluoride-induced chronic toxicity in developing countries, our findings have relevance in minimizing hematological disorders among people residing in the fluoride-affected areas, because indigenously cultivated low-price tomato fruits are easily available for consumption. PMID- 29336631 TI - The Beneficial Radioprotective Effect of Tomato Seed Oil Against Gamma Radiation Induced Damage in Male Rats. AB - Radiation protection research receives intense focus due to its significant impact on human health. The present study was undertaken to investigate the protective effect of pretreatment with tomato seed oil (TSO) against gamma radiation-induced damage in rats. Male Wistar rats were divided into four groups: (1) untreated control; (2) TSO-supplemented; (3) gamma-irradiated; (4) TSO pretreated and gamma-irradiated. Acute exposure of animals to a single gamma radiation dose (6 Gy) induced oxidative stress in major body organs, altered serum lipid homeostasis, significantly increased serum testosterone and sorbitol dehydrogenase levels, and elicited a systemic inflammation as manifested by the induction of serum vascular cell adhesion molecule-1. Oral pretreatment with TSO (1 ml/kg; 3 times/week for 8 weeks) before exposure to gamma radiation protected rats against ionizing radiation-induced oxidative stress, restored lipid homeostasis, and suppressed systemic inflammation. Histological findings of target tissues verified biochemical data. The radioprotective ability of TSO was attributed to its content of phytosterols, policosanol, and antioxidants, including lycopene, beta-carotene, lutein, and tocopherols. TSO is considered a promising radioprotective agent that can be effectively used to protect the body from the damaging effects of harmful radiation. PMID- 29336632 TI - Mobius syndrome with cardiac rhabdomyomas. AB - BACKGROUND: Mobius syndrome is a rare congenital condition which presents not merely with 6th and 7th nerve palsies, but involves gaze paresis associated with craniofacial, limb, and other abnormalities. Heterogeneity is well known in patients with Mobius syndrome and rather than being of familial inheritance based on rare cases, it is much more recognized as a sporadic syndrome. We report an infant with features of congenital Mobius syndrome associated with cardiac rhabdomyomas in the absence of tuberous sclerosis. MATERIALS AND METHODS: Observational case report of an infant seen at a tertiary academic center with genetic testing, ophthalmic, neurological, and cardiac clinical examination and imaging. RESULTS: A newborn baby boy at birth was seen with multiple congenital craniofacial malformations, and respiratory distress. He was noted to have micrognathia, retrognathia, wide nasal bridge, low set ears, high arched palate, nonreducing bilateral talipes equinovarus and bilateral large angle esotropia with -4 abduction deficit and facial palsy, findings suggestive of Mobius Syndrome. MRI of the brain was unremarkable except for syringomyelia in the cervical spine. Echocardiography showed two cardiac rhabdomyomas in the right ventricle and ulltrasound of the abdomen showed mild right hydroneprosis. Cytogenetics revealed segmental loss at 21q21.2. Testing for tuberous sclerosis was negative for deletion or duplications of genes TSC1 and TSC2. CONCLUSION: This case highlights the rare co-occurrence of cardiac rhabdomyomas with Mobius syndrome and new segmental loss at 21q21.2 on genetic testing. Findings could indicate not a "suggestion of Mobius", but rather the syndrome itself in association with cardiac defects. PMID- 29336633 TI - The relationship between asthma and depression in a community-based sample. AB - OBJECTIVE: Asthma is an increasingly prevalent disease that is associated with substantial physical and financial burdens. Additionally, asthma is linked to psychiatric disorders. This study examines the relationship between asthma diagnosis, current depressive symptoms, and lifetime psychiatric disorder history in a large, community-based sample. METHODS: We analyzed data from 2168 participants in the Dallas Heart Study, a large, diverse, community-based sample of people designed to be representative of the Dallas County population. Logistic regressions analyzing the relationship between asthma diagnosis and history of a psychiatric disorder, as well as between asthma diagnosis and the Quick Inventory of Depressive Symptomatology (QIDS) scores were performed, controlling for demographic data. RESULTS: 13.4% of the sample had an asthma diagnosis. Asthma diagnosis was significantly associated with a history of nervous, emotional, or mental health disorder diagnosis [OR 1.810 (95% CI 1.280-2.559) p = 0.001], and with QIDS scores consistent with moderate or greater current depressive symptom severity [OR 1.586 (95%CI 1.106-2.274) p = 0.012]. The relationships were not moderated by age, gender, race, smoking status, or Body Mass Index. CONCLUSIONS: A diagnosis of asthma may be associated with current clinically significant levels of depressive symptoms and a lifetime psychiatric disorder. The current report adds to the existing literature in this area by assessing both current and lifetime symptoms and by using a large and diverse population. The findings highlight the clinical importance of considering the possibility of psychiatric illness in asthma patients and suggest further research in this area is needed. PMID- 29336634 TI - sICAM-1, sVCAM-1 and sE-Selectin Levels in Type 1 Diabetes. AB - BACKGROUND/OBJECTIVE: This study was performed to compare soluble levels of adhesion molecules between diabetic patients and controls and to assess their possible association with long-term complications of type 1 diabetes (T1D). METHODS: Forty-eight patients with T1D and 39 healthy controls were enrolled in this study. The plasma level of adhesion molecules was measured by sandwich enzyme-linked immunosorbent assay technique. RESULTS: Higher sVCAM 1 (soluble vascular cell adhesion molecule 1) levels correlated with older age of onset of T1D. The plasma level of sICAM 1 (soluble intercellular adhesion molecule 1) was significantly increased, while sE selectin was significantly decreased in patients with T1D, compared to controls. There was no significant relationship between these plasma-level variations and the long-term complications of T1D. CONCLUSION: Although plasma levels of cell adhesion molecules are different in T1D patients and healthy controls, they might not be good candidate markers for prognosis of disease. PMID- 29336635 TI - Lymphomatoid Granulomatosis in a 14-Year-Old Boy with Trisomy 21 and History of B Lymphoblastic Leukemia/Lymphoma. AB - BACKGROUND: Lymphomatoid granulomatosis is a EBV-driven lymphoproliferative disorder that has been reported in association with immunodeficiency, but only exceptionally in patients with hematopoietic malignancy. CASE REPORT: A 14-year old boy with trisomy-21 and a history of B-lymphoblastic leukemia/lymphoma (B ALL) diagnosed 1.5 years prior, on maintenance chemotherapy, presented with fever and respiratory symptoms. Chest X-ray revealed right-lower-lobe consolidation. He was treated for pneumonia but continued to be febrile with worsening respiratory status, with development of additional pulmonary and liver nodules. No infectious etiology was identified. Following nondiagnostic lung and liver biopsies, the largest pulmonary mass was resected. The histopathologic findings were diagnostic of lymphomatoid granulomatosis. There was no residual B-ALL. The patient's status continued to deteriorate and he died shortly thereafter. CONCLUSION: Relative immunosuppression due to maintenance therapy for B-ALL can lead to lymphomatoid granulomatosis. PMID- 29336636 TI - A Dysmorphology Based Systematic Approach Toward Perinatal Genetic Diagnosis in a Fetal Autopsy Series. AB - BACKGROUND: This retrospective study assesses the contribution of genetic disorders in fetuses undergoing postmortem evaluation and the performance of a clinical dysmorphology based systematic approach toward genetic diagnosis. MATERIALS AND METHODS: Ninety fetuses, including spontaneous losses and terminated pregnancies, underwent a postmortem evaluation including dysmorphological examination, radiological studies, and histopathological examination. Genetic testing including karyotyping, biochemical testing, Sanger sequencing, and exome sequencing were performed selectively. RESULTS: A genetic etiology was concluded in 48 fetuses (55%). As a standalone test, dysmorphological examination was able to ascertain a definite genetic diagnosis in sixteen cases, histopathology in six; and karyotyping, biochemical testing and exome sequencing in two cases each (Total 28). Additionally, dysmorphology findings indicated possible genetic disorder in 20 cases. CONCLUSION: Genetic etiologies contribute significantly to fetuses undergoing autopsy in this series. A systematic approach to postmortem fetal evaluation guided by dysmorphological examination provides high diagnostic yield toward perinatal genetic diagnosis. PMID- 29336637 TI - Post Mortem Diagnosis of Blake's Pouch Cyst: A Presentation of Distended Cyst at Necropsy. AB - BACKGROUND: Blake's pouch cyst forms from non-permeabilization of Blake's pouch. It is difficult to visualize at necropsy as the cyst ruptures easily into the 4th ventricle during dissection. CASE REPORT: Based upon prenatal imaging, delicate dissection allowed post-mortem confirmation of the Blake's pouch cyst. CONCLUSIONS: This highlights the importance of utilizing premortem imaging to help guide the postmortem dissection and documentation of a posterior fossa cyst. PMID- 29336638 TI - Prehospital Administration of Epinephrine in Pediatric Anaphylaxis - A Statewide Perspective. AB - OBJECTIVE: Timely administration of epinephrine is critical in the treatment of anaphylaxis. This study sought to determine the frequency of administration of epinephrine by EMS providers caring for pediatric patients in the prehospital setting. METHODS: We examined data from the NC EMS database (PreMIS) from 2010-3 to determine frequency of epinephrine administration in pediatric patients with anaphylaxis. We studied patients <18 years of age with an EMS provider impression of "allergic reaction." Anaphylaxis was present if there was hypotension (defined as SBP < 90 or DBP < 45 for patients age 11 and older, and SBP < 70 + (2 * age) for patients ages 0-10), or impaired respirations (defined as description of labored or absent respirations, or RR < 12 or > 30). We determined the overall frequency of epinephrine administration. A multivariate logistic regression was then constructed to examine the impact of the following variables on appropriate epinephrine administration: age < 10, non-white race, rural county of case origin, duration of transportation from scene, and presence of a paramedic. RESULTS: A total of 504 patients met inclusion criteria, of which 471 demonstrated anaphylaxis as previously defined. A total of 153 patients with anaphylaxis received epinephrine (32.4%, 95% CI 28.3-36.9%). Age < 10 was associated with increased odds of not receiving epinephrine appropriately (OR 2.90, 95% CI 1.85-4.54, p < 0.001). Other variables did not have statistically significant impact on epinephrine administration. CONCLUSION: There are missed opportunities for prehospital administration of epinephrine in pediatric patients with anaphylaxis. Very young children (age < 10) had increased odds for not receiving epinephrine. PMID- 29336639 TI - Intellectual, educational, and situation-based social outcome in adult survivors of childhood medulloblastoma. AB - PURPOSE: To investigate intellectual and situation-based social outcome and educational achievement in adult survivors of childhood medulloblastoma and analyse factors influencing outcome Methods: We collected demographic, medical and cognitive data, and social and educational outcome at a mean time since the end of treatments of 14.9 years in 58 adults, aged 19-35 years, consecutively treated in a single cancer center between 1989 and 2005. RESULTS: Ten survivors had severe intellectual disability, 12 were still studying, 23 had a regular employment and 13 were unemployed. Full Scale Intellectual Quotient, assessed 6.6 years after the end of treatments, ranged from 46 to 131. It was strongly associated with educational achievement and significantly lower in patients who experienced postoperative cerebellar mutism, and when parental education level was low. CONCLUSION: These factors should be systematically considered at diagnosis in order to offer adequate and timely assessments and interventions. PMID- 29336640 TI - Novel RNASET2 Pathogenic Variants in an East Asian Child with Delayed Psychomotor Development. AB - INTRODUCTION: RNASET2 mutation has been reported in patients with cystic leukoencephalopathy without megalencephaly and the Aicardi-Goutieres syndrome. Both disorders are Mendelian mimics of congenital cytomegalovirus infection with overlapping features, including leukoencephalopathy, white matter alterations, intracranial calcification, delayed psychomotor development, intelligence disability and seizures. Only eight families with RNASET2 mutation have been previously reported. METHODS: Whole exome sequencing was performed and copy number variants were described by read-depth strategy. RESULTS: We identified a novel nonsense variant c.128G>A (p. W43*) and a 430 Kb 6q27 microdeletion encompassing RNASET2. Our patient did not show anterior temporal lobe subcortical cysts, hearing loss, dystonia or extra-neurological features. CONCLUSION: Our results provided further genetic and phenotypic information of RNASET2 mutation in Chinese patients and highlighted the importance for physicians to consider RNASET2-related disorders when diagnosing patients with congenital brain infection-like phenotypes. PMID- 29336641 TI - Impact of Forward and Backward Scattering and Corneal Higher-Order Aberrations on Visual Acuity after Penetrating Keratoplasty. AB - PURPOSE: To assess the relationship of forward and backward scattering and corneal higher-order aberrations (HOAs) with corrected distance visual acuity (CDVA) after penetrating keratoplasty (PK). METHODS: This retrospective study comprised 25 eyes of 25 consecutive patients who underwent PK using the VisuMax femtosecond laser system and age-matched 25 eyes of 25 healthy subjects. We quantitatively assessed objective scattering index (OSI) using the double-pass instrument (OQAS II, Visiometrics), corneal densitometry (CD) and corneal HOAs with the Scheimpflug rotating camera (Pentacam HR, Oculus) 1 year postoperatively. RESULTS: The OSI, CD, and corneal HOAs were significantly larger in the PK group than those in the control group (p <= 0.011). We found significant correlations of logMAR CDVA with the OSI (r = 0.477, p = 0.016), and with the anterior, posterior, and total corneal HOAs of the central 4-mm zone (anterior: r = 0.573, p = 0.003, posterior: r = 0.596, p = 0.002, total: r = 0.472, p = 0.017), but no significant association with the CD of the 0-2 mm zone at any layers (anterior: r = 0.236, p = 0.257, center: r = 0.139, p = 0.506, posterior: r = 0.073, p = 0.728, total: r = 0.212, p = 0.308). Similar results were obtained when the analysis was repeated with corneal HOAs of the central 6 mm zone and CDs in 2-6 mm zone. CONCLUSIONS: Our pilot study demonstrated that the postoperative CDVA was significantly correlated with OSI and corneal HOAs, but not with backward scattering in post-PK eyes, suggesting that OSI as well as corneal HOAs plays an essential role in postoperative visual performance after PK. PMID- 29336642 TI - Concurrent Validity of Two Gait Performance Measures in Children with Neuromotor Disorders. AB - AIMS: To investigate the concurrent validity of two mobility performance measures, the Functional Mobility Scale (FMS) and the Gillette Functional Assessment Questionnaire - walking scale (FAQ) in an inpatient pediatric neurorehabilitation setting. METHODS: Cross-sectional data were collected on 71 children (mean age 12.7 years) with neuromotor gait impairments who participated in an inpatient rehabilitation program to evaluate aspects of concurrent validity of the FMS and FAQ. Physiotherapists independently performed ratings. Comparator instruments included the walking item of the Functional Independence Measure for children, 10-m and 6-minute walking tests, and Gross Motor Function Measure-88 dimension E. All tests were completed within 7 days. Spearman correlation coefficients were calculated to test a priori formulated hypotheses regarding the strength and direction of the measures relationships. RESULTS: The children had a broad spectrum of mobility levels, including all levels of FMS and levels 2-10 of FAQ. Spearman correlation coefficients with comparator measures varied between 0.58-0.79 for the FMS and 0.69-0.73 for the FAQ. Hypotheses concerning correlation strengths and directions were met for FMS and FAQ. CONCLUSIONS: The findings demonstrate that the FMS and FAQ are valid to evaluate functional mobility in pediatric inpatient neurorehabilitation. PMID- 29336643 TI - Measurement of Fetal Mesencephalon and Pons Via Ultrasonographic Cross Sectional Imagining. AB - OBJECTIVES: This study evaluated the feasibility of measuring the fetal mesencephalon and pons by ultrasonographic cross sectional imaging to detect fetal central nervous system developmental abnormalities. MATERIALS AND METHODS: Fetal ultrasonographic measurements included: Fetal mesencephalon anteroposterior diameters (MAD), mesencephalon transverse diameters (MTD), pons anteroposterior diameter (PAD) and proximal transverse diameters (PTD). RESULTS: Nine-hundred ninety fetuses were imaged. Thirty-eight fetuses (observation group) presented central nervous system abnormalities; 952 fetuses without imaged abnormalities were utilized as the reference (control) group. Fetal MAD, MTD, PAD, and PTD in control fetuses showed a linear correlation with gestational age. Thirty-eight fetuses had 40 abnormal measurements (8 MAD, 8 MTD, 14 PAD, and 10 PTD), 16 in mesencephalon, and 24 in pons. All data fell below the 95% confidence intervals' lower limits for the corresponding gestational age. CONCLUSION: Using normative data based on 957 fetuses allows detection of size abnormalities of the pons and midbrain during fetal life. PMID- 29336644 TI - Evidence, education and multi-disciplinary integration are needed to embed exercise into lung cancer clinical care: A qualitative study involving physiotherapists. AB - AIMS: To explore physiotherapists perceptions regarding barriers and enablers to embedding exercise into routine lung cancer clinical care. DESIGN: Qualitative study (content analysis). Eight physiotherapists working in the area of lung cancer at five hospitals participated. The focus group was conducted, transcribed verbatim and independently crosschecked. Thematic analysis was utilized. RESULTS: The data generated four major themes: evidence justifying exercise; staffing and services; maximising the efficacy of interventions; and hospital culture. Physiotherapists perceived that barriers included lack of evidence, lack of physiotherapy time and funding, inconsistencies in patient access to outpatient exercise programs, lack of clear referral pathways, limited knowledge about exercise by the wider multi-disciplinary team, and poor culture of physical activity in the inpatient setting. Recommendations included developing a stronger evidence-base, establishing set patient pathways into exercise programs, re allocating physiotherapy services to high-risk patients, and integrating/involving the multi-disciplinary team particularly through education and communication. CONCLUSION: This study has identified barriers to, and potential strategies for, the embedding of exercise into lung cancer clinical practice. Evidence, education and multi-disciplinary integration are viewed by physiotherapists as critical for success. A targeted gradual approach, by applying these strategies at defined stages across the lung cancer pathway, is recommended to facilitate future practice change. PMID- 29336645 TI - Physical exercise prior to hematopoietic stem cell transplantation: A feasibility study. AB - PURPOSE: This study explores the feasibility and preliminary effectiveness of an exercise program in people scheduled for hematopoietic stem cell transplantation (HSCT). METHODS: In this controlled clinical trial, we compare pre transplantation exercise to no exercise in the waiting period for an allogeneic of autologous HSCT. The supervised individually tailored exercise program (4-6 weeks) consisted of aerobic endurance, muscle strength, and relaxation exercises, administered twice a week in the period prior to HSCT. Feasibility was determined based on inclusion rate, attrition rate, adherence to intervention, safety, and satisfaction (0-10). Preliminary effectiveness was determined primarily by self perceived physical functioning, quality of life (QOL), and fatigue. Secondary outcomes were global perceived effect (GPE), blood counts, hospital stay, and physical fitness. RESULTS: Forty-six patients were eligible, of whom 29 (69%) participated: 14 in the intervention group and 15 in the control group. The adherence rate to training was 69%. No adverse events or injuries occurred. Satisfaction of training conditions was high (mean 9.2 +/- 1.3). Positive (follow up) trends in favor of the intervention group were found for self-perceived physical functioning, QOL, fatigue, GPE, blood counts, and hospital stay. CONCLUSION: Exercise prior to HSCT is safe and feasible, and positive trends suggest favorable preliminary effectiveness. Adherence to the exercise program needs to be optimized in a future trial. PMID- 29336646 TI - Anti-cyclic citrullinated peptide antibodies, other common autoantibodies, and smoking as risk factors for lymphoma in patients with rheumatoid arthritis. AB - OBJECTIVES: Patients with rheumatoid arthritis (RA) are at increased risk of lymphoma. There is no biomarker to indicate future lymphoma risk in RA and it is not known whether factors associated with an increased risk of RA also confer an increased risk of lymphoma. We investigated whether anti-cyclic citrullinated peptide (CCP) antibodies, other autoantibodies, and smoking, are associated with lymphoma development in RA. METHOD: From two population-based case-control studies, the Scandinavian Lymphoma Etiology (SCALE) study and the Epidemiological Investigation of Rheumatoid Arthritis (EIRA) I study, we identified lymphoma cases with a validated RA diagnosis (n = 50), to whom we matched study participants with RA but no lymphoma (n = 261), lymphoma but no RA (n = 257), and neither RA nor lymphoma (n = 233). Lymphomas were classified according to the WHO classification. Blood samples were analysed for immunoglobulin G (IgG), IgM, and IgA isotypes and IgG1-4 subclasses of anti-CCP antibodies and for 15 antinuclear antibody (ANA)-associated specific autoantibodies. Relative risks were estimated as crude and adjusted odds ratios (adjOR) with 95% confidence intervals (CIs) using logistic regression. RESULTS: We found no association between anti-CCP IgG >= 25 units/mL (adjOR 1.4, 95% CI 0.7-2.7), anti-CCP IgG >= 500 units/mL (adjOR 1.4, 95% CI 0.7-3.0), anti-CCP Ig of other isotypes, other autoantibodies (adjOR any vs none 0.6, 95% CI 0.3-1.2), or cigarette smoking (adjOR ever vs never 1.1, 95% CI 0.5-2.2) and lymphoma risk among patients with RA. CONCLUSION: In this study, neither anti-CCP antibodies (IgG, IgG1-4, IgM, or IgA), nor other common autoantibodies, nor smoking predicted lymphoma risk in RA. PMID- 29336647 TI - Inflammatory Myofibroblastic Tumor of the Tongue. Report of a Pediatric Case and Review of the Literature. AB - BACKGROUND: Inflammatory myofibroblastic tumor (IMT) is an uncommon mesenchymal lesion composed of myofibroblastic and fibroblastic spindle cells, accompanied by inflammatory infiltration. IMT may occur in the tongue. Five cases have been previously reported at this site. CASE REPORT: An inflammatory myofibroblastic tumor arose in the tongue of a 10 month old infant, confirmed by anaplastic lymphoma kinase (ALK) immunohistochemical staining and the clinical response to the tyrosine kinase inhibitor. CONCLUSIONS: IMT can occur in the tongue. This report highlights the differential diagnosis of IMT. ALK staining is both a helpful diagnostic marker and a predictive marker for targeted therapy in this tumor type. PMID- 29336648 TI - Rhythmic arm swing integrated into treadmill training in patients with chronic stroke: A single-subject experimental study. AB - Normal walking includes coordinated and controlled movement of the legs and arms. However, patients following stroke often present with inappropriate motor control which limits coordinated movement patterns of the affected limbs. This study aimed to compare the effects of rhythmic arm swing and arm fixation during treadmill walking in patients with poststroke hemiparesis. We used an alternating study design with multiple baselines across subjects. Three patients with chronic stroke participated in this study. During treadmill walking, rhythmic arm swing and arm fixation conditions were alternately applied. Outcome measures included the 10-meter walk test (10MWT) and energy expenditure index (EEI). In the intervention phase, all subjects showed significantly greater improvements in the 10MWT and EEI scores for rhythmic arm swing condition compared to those for arm fixation condition (p < 0.05). 10MWT improvement rates: Subject 1-34.81% vs. 15.75%; Subject 2-40.00% vs. 17.95%; and Subject 3-38.08% vs. 21.85%; and EEI improvements: Subject 1-23.19% vs. 14.08%; Subject 2-26.15% vs. 20.43%; and Subject 3-22.99% vs. 14.49%. These findings suggest that rhythmic arm swing is clinically feasible as a more favorable option to enhance the effects of treadmill walking training. However, larger studies with a different study design are needed to be able to make any judgment about the usefulness of the treatment. PMID- 29336649 TI - Severe Craniofacial Involvement due to Amniotic Band Sequence. AB - BACKGROUND: Disruptive amniotic band sequence (DABS) is a sporadic, non-familial disorder with unclear etiology. Diagnosis is based on clinical features because there is currently no reliable laboratory diagnostic tests. OBJECTIVE: We describe six cases of DABS with severe craniofacial deformations, three with and three without classical constrictive limb deformation. RESULTS: The craniofacial deformities were delimited by peripheral sharply demarcated scarring. CONCLUSION: When a sharply demarcated linear disruptive craniofacial lesion is observed, DABS should be considered despite the absence of constrictive limb scarring. PMID- 29336650 TI - Association of REL Polymorphism with Cow's Milk Proteins Allergy in Pediatric Algerian Population. AB - INTRODUCTION: Cow's milk proteins allergy (CMPA) pathogenesis involves complex immunological mechanisms with the participation of several cells and molecules involved in food allergy. The association of polymorphisms in the interleukin 4, Forkhead box P3 and the avian reticuloendotheliosis genes was investigated in an infant population with CMPA of Western Algeria. MATERIALS AND METHODS: We obtained DNA and clinical data from milk allergic subjects during active phase and from a group of non-atopic control subjects. RESULTS: Our findings showed that the allele G of the cRel gene intronic polymorphism at +7883 positions was significantly higher among cow's milk proteins allergic patients compared to control subjects. CONCLUSION: The results of this study suggest a possible association of CMPA with cRel G+7883T polymorphism. PMID- 29336651 TI - Formal and Informal Control of Cannabis: Regular Users' Experience. AB - BACKGROUND: The debate on recreational use of cannabis, recently relaunched by the election of the Liberal Party of Canada that intends to legalize and regulate its use and access, implies a better understanding of social control mechanisms that are in place, and their influence on users' behaviors. OBJECTIVE: This study addresses the issue of formal and informal controls by providing, first, a theoretical perspective of this concept, and, second, by illustrating its operation from the users' perspective. METHODS: Semi-structured interviews were conducted with 164 regular, adult cannabis users recruited in four large Canadian cities (Vancouver, Toronto, Montreal, and Halifax). An initial qualitative analysis based on the principles of grounded theory was conducted. The main categories identified were then used to find and re-code relevant material on the respondents' experience with formal and informal control (secondary analysis). RESULTS: The users' perspective shows that mechanisms of informal control play an important role in defining the social context of their use (when, where, and with whom cannabis is consumed). In contrast, formal control had no deterrent impact on the cessation or reduction of use, but affected their behavior by influencing them to change the context of their practices to avoid criminal legal consequences and stigmatization. Conclusions/Importance: The regulatory controls based in public health that the Canadian government plans to implement (replacing criminal ones), should be based on a better understanding of current practices and patterns of cannabis users, and in accordance with informal controls already in place. Legislative formal controls, in a regulatory model, that are better defined and consistent with social practices, will be more accepted and respected by the user population and thus likely to be more effective in reducing harm. PMID- 29336652 TI - Detection of STEMI Using Prehospital Serial 12-Lead Electrocardiograms. AB - OBJECTIVE: Repeated or serial 12-lead electrocardiograms (ECGs) in the prehospital setting may improve management of patients with subtle ST-segment elevation (STE) or with a ST-segment elevation myocardial infarction (STEMI) that evolves over time. However, there is a minimal amount of scientific evidence available to support the clinical utility of this method. Our objective was to evaluate the use of serial 12-lead ECGs to detect STEMI in patients during transport in a Canadian emergency medical services (EMS) jurisdiction. METHODS: We performed a retrospective study of suspected STEMI patients transported by EMS in the Chaudiere-Appalaches region (Quebec, Canada) between August 2006 and December 2013. Patients were monitored by a serial 12-lead ECG system where an averaged ECG was transmitted every 2 minutes. Following review by an emergency physician, ECGs were grouped as having either a persistent STE or a dynamic STE that evolved over time. RESULTS: A total of 754 suspected STEMI patients were transported by EMS during the study period. Of these, 728 patients met eligibility criteria and were included in the analysis. A persistent STE was observed in 84.3% (614/728) of patients, while the remaining 15.7% (114/728) had a dynamic STE. Among those with dynamic STE, 11.1% (81/728) had 1 ST-segment change (41 no-STEMI to STEMI; 40 STEMI to no-STEMI) and 4.5% (33/728) had >= 2 ST segment changes (17 no-STEMI to STEMI; 16 STEMI to no-STEMI). Overall, in 8.0% (58/728) of the cohort, STEMI was identified on a subsequent ECG following an initial no-STEMI ECG. CONCLUSIONS: Through recognition of transient ST-segment changes during transport via the prehospital serial 12-lead ECG system, STEMI was identified in 8% of suspected STEMI patients who had an initial no-STEMI ECG. Key words: electrocardiography; emergency medical services; ST-elevation myocardial infarction; prehospital dynamic ECG. PMID- 29336653 TI - Assessment of spatial heterogeneity in continuous twin screw wet granulation process using three-compartmental population balance model. AB - In this study, a novel three-compartmental population balance model (PBM) for a continuous twin screw wet granulation process is developed, combining the techniques of PBM and regression process modeling. The developed model links screw configuration, screw speed, and blend throughput with granule properties to predict the granule size distribution (GSD) and volume-average granule diameter. The granulator screw barrel was divided into three compartments along barrel length: wetting compartment, mixing compartment, and steady growth compartment. Different granulation mechanisms are assumed in each compartment. The proposed model therefore considers spatial heterogeneity, improving model prediction accuracy. An industrial data set containing 14 experiments is applied for model development. Three validation experiments show that the three-compartmental PBM can accurately predict granule diameter and size distribution at randomly selected operating conditions. Sixteen combinations of aggregation and breakage kernels are investigated in predicting the experimental GSD to best judge the granulation mechanism. The three-compartmental model is compared with a one compartmental model in predicting granule diameter at different experimental conditions to demonstrate its advantage. The influence of the screw configuration, screw speed and blend throughput on the volume-average granule diameter is analyzed based on the developed model. PMID- 29336654 TI - Serotonin Syndrome in Tapentadol Literature: Systematic Review of Original Research. AB - The potential association between serotonin syndrome and tapentadol is not well described in the literature. This study aimed to review the literature and identify methodological issues that could lead to inaccurately reported rates of serotonin syndrome associated with tapentadol use. A systematic review of English articles using MEDLINE, Cochrane Controlled Trials Register, and Scopus was performed. Additional studies were identified by cross-referencing article bibliographies. Original research that examined the safety of tapentadol in patients with nonconfounding indications were examined. In total, 22 studies met inclusion criteria. There were 13 randomized clinical trials, 7 open-label trials, and 2 observational studies. All studies either did not mention whether serotonergic medication use was prohibited or disallowed use. Frequently reported adverse events were nausea, diarrhea, constipation, fatigue, vomiting, and somnolence. No studies reported serotonin syndrome development. No included trials differentiated between the development of adverse events in patients taking serotonergic drugs and those who were not. This differentiation is necessary to evaluate the increased risk of adverse events in patients prescribed tapentadol concomitantly with other serotonergic medications. Therefore, the current tapentadol literature has important limitations that prevent the adequate characterization of the potential association between tapentadol and serotonin syndrome. PMID- 29336655 TI - Reversible cicatricial ectropion associated with EGFR inhibitors. AB - The management of cicatricial ectropion resulting from epidermal growth factor receptor (EGFR) inhibitors is unclear. We describe two cases of bilateral cicatricial ectropion following the use of an EGFR inhibitor who were treated with oral doxycycline, topical ophthalmic steroid and antibiotic ointment to the eyelids, and topical facial steroid cream with lubrication. The first case resolved with discontinuation of panitumumab infusions along with institution of the aforementioned regimen. However, it is unclear whether the resolution was from discontinuation of the infusions or from the instituted regimen. The second case resolved without a dose adjustment of cituximab. This case may provide support for the use of this regimen prior to discontinuation of the offending agent, as there was a successful outcome without alteration of the infusions. Additional cases are necessary to determine if this is a successful means of treating bilateral lower-lid cicatricial ectropion from EGFR inhibitors. PMID- 29336656 TI - The use of mastoid vibration with canalith repositioning procedure to treat persistent benign paroxysmal positional vertigo: A case report. AB - The Canalith Repositioning Procedure (CRP) was originally described as a non invasive treatment for Benign Paroxysmal Positional Vertigo (BPPV) by Epley. Since its inception, the maneuver has undergone several modifications; and currently is performed in the absence of induced mastoid vibration (oscillation). Clinically, mastoid vibration may be used to assist in treatment of persistent cases of BPPV, where a simple CRP may fail to improve symptoms. This case describes a patient with a three-month history of BPPV (right posterior canalithiasis), who was previously treated unsuccessfully with standard CRP. Mastoid vibration was introduced as part of the treatment due to persistent BPPV. After one treatment utilizing CRP with mastoid vibration, the patient had complete resolution of symptoms, and remained symptom free at a six-month follow up. It can be concluded that introducing mastoid oscillation via vibration to the CRP in persistent cases of semicircular canalithiasis BPPV may produce positive patient outcomes. PMID- 29336657 TI - What Factors are Associated with Electronic Cigarette, Shisha-Tobacco and Conventional Cigarette Use? Findings from a Cross-Sectional Survey of Australian Adolescents? AB - BACKGROUND: Adolescents' use of electronic cigarettes and shisha-tobacco increased in several countries during the 2000s, including in the United States, United Kingdom and Canada. Few studies have examined the factors associated with exclusive e-cigarette or shisha-tobacco use and whether adolescents using these substances exclusively differ from those using traditional cigarettes. OBJECTIVES: To examine the socio-demographic and behavioural correlates of exclusive e-cigarette and exclusive shisha-tobacco use to those found for users of tobacco cigarettes and multiple nicotine products in Australian adolescents. METHODS: Cross-sectional survey of smoking behaviours of a random sample of 4,576 students in the Australian state of Victoria aged 12-17 conducted between June 2014 and December 2014. RESULTS: Overall, 14% of students had used an e-cigarette with 3% using e-cigarettes exclusively. 13% had used shisha-tobacco, with 2% using shisha-tobacco exclusively. Most students (65%) using e-cigarette and shisha-tobacco (67%) had also used tobacco cigarettes. After adjusting for demographic factors, students using e-cigarettes only were more likely to have never used cannabis or drink alcohol in the past year compared to tobacco cigarette users. Compared to tobacco cigarette users, students using only shisha tobacco were younger, less likely to use cannabis or alcohol or have friends or parents who smoke. CONCLUSIONS: Most Australian adolescents who use alternative nicotine and tobacco-related products do so in conjunction with tobacco cigarettes. Students using e-cigarettes or shisha-tobacco exclusively were less likely to use other substances. Australian longitudinal studies are needed to determine whether this group of students are on a pathway to traditional tobacco use. PMID- 29336658 TI - Just a First-Year Thing? The Relations between Drinking During Orientation Week and Subsequent Academic Year Drinking Across Class Years. AB - BACKGROUND: The goal of Orientation Week is to help new students adjust to university life. However, it is a period when many new students engage in excessive alcohol consumption and where problematic drinking patterns may be established. OBJECTIVE: The objective is to determine whether returning students drink in a similar manner to students in their first-year of classes and whether Orientation Week drinking predicts semester drinking more strongly for first-year than returning students. METHODS: We tested 552 students (18 to 25 years old) in their first, second, or third class year of university. Students reported their Orientation Week drinking and then completed daily drinking diaries for 13 consecutive days during the academic year. RESULTS: Orientation Week drinking was similar across class years and also predicted academic year drinking for students in all class years. Conclusion/Importance: Drinking during Orientation Week is not just a first-year problem and prevention efforts should focus on all students. PMID- 29336659 TI - Long non-coding RNA HOTAIR promotes cervical cancer progression through regulating BCL2 via targeting miR-143-3p. AB - BACKGROUND: HOX transcript antisense RNA (HOTAIR) is a long non-coding RNA (lncRNA) widely involved in the progression of numerous malignancies. Whereas, the potential molecular mechanism of HOTAIR involved in cervical cancer progression is still needed to be elaborated. METHODS: The expression of HOTAIR and miR-143-3p were detected in cervical cancer tissues and cells by qRT-PCR. MTT and flow cytometry analysis were performed to measure cell proliferation and apoptosis. Bioinformatics, Dual-Luciferase reporter and RIP were used to analyze the possible correlation between HOTAIR, miR-143-3p and BCL2. The expression of Bax and BCL2 was detected by western blot. Mice xenograft model was established to confirm the role of HOTAIR on tumor growth in vivo. RESULTS: HOTAIR expression was elevated while miR-143-3p expression was reduced in cervical cancer tissues and cell lines. HOTAIR knockdown suppressed proliferation and enhanced apoptosis in cervical cancer cells. Moreover, HOTAIR could function as a sponge for miR-143 3p. The inhibitory effect of HOTAIR knockdown on cervical cancer cells growth was abolished following decrease of miR-143-3p expression. Furthermore, HOTAIR promoted BCL2 expression by modulating miR-143-3p. BCL2 overexpression attenuated the tumor-suppressive effect of miR-143-3p in cervical cancer. Finally, the carcinogenicity of HOTAIR was validated in mice. CONCLUSIONS: HOTAIR promoted cervical cancer cell growth by modulating BCL2 via miR-143-3p, hinting a novel regulatory mechanism and potential therapeutic target in cervical cancer. PMID- 29336660 TI - Current Practice Patterns Surrounding Fertility Concerns in Stage I Seminoma Patients: Survey of United States Radiation Oncologists. AB - PURPOSE: Patients with testicular seminoma may face fertility issues because of their underlying disease as well as treatments they undergo. The current patterns of practice among U.S. radiation oncologists aimed at assessing and preserving fertility in patients with Stage I seminoma are unknown. METHODS: We surveyed practicing U.S. radiation oncologists via an Institutional Review Board-approved online questionnaire. Respondents' characteristics and perceived patient infertility rates were analyzed for association with treatment recommendations. RESULTS: We received 353 responses, of whom one quarter (23%) consider themselves experts. A vast majority (84%) recommend observation as a default strategy. Fifty two percent routinely advise fertility assessment for patients before observation or chemotherapy, and 74% routinely do so before adjuvant radiation therapy (RT). Forty-one percent and 43% believe that 10% and 30% of patients are infertile following orchiectomy, respectively. Thirty-seven percent and 22% believe infertility rates following para-aortic RT to be 30% and 50%, respectively. Eighty percent routinely use clamshell scrotal shielding. Responders with higher perceived infertility rates are more likely to recommend fertility assessment/sperm banking (Fisher's exact p < 0.0001). Responders who routinely advised fertility assessment were more likely to use clamshell shielding (Cochran Armitage trend test p = 0.0007). Clamshell use was positively correlated with higher perceived infertility rates following para-aortic RT (Spearman's correlation coefficient = 0.006). CONCLUSIONS: Despite a clear knowledge of fertility issues in men diagnosed with seminoma, there is no universal adoption of fertility assessment among U.S. radiation oncologists. PMID- 29336661 TI - Cancer-Related Genetic Testing and Personalized Medicine for Adolescents: A Narrative Review of Impact and Understanding. AB - Genetic testing is becoming increasingly available for adolescents who are undergoing cancer treatment or at risk of cancer predisposition syndromes. With this narrative review, we aimed to synthesize the evidence on psychosocial outcomes and adolescents' understanding of genetic testing-thus far, an underresearched topic. Both psychological benefits and harms of predictive testing were reported in adolescents from high-risk families. Harms were mainly related to cancer-specific distress and increased worries. Findings on genetic understanding were sparse. Future studies should focus on psychosocial outcomes and adolescents' understanding undergoing genetic testing and enabling access to genetic counseling pre-testing and post-testing. PMID- 29336663 TI - Lactobacillus acidophilus Improves Intestinal Inflammation in an Acute Colitis Mouse Model by Regulation of Th17 and Treg Cell Balance and Fibrosis Development. AB - Disruption of the balance among the microbiota, epithelial cells, and resident immune cells in the intestine is involved in the pathogenesis of inflammatory bowel disease (IBD). Probiotics exert protective effects against IBD, and probiotic commensal Lactobacillus species are common inhabitants of the natural microbiota, especially in the gut. To investigate the effects of Lactobacillus acidophilus on the development of IBD, L. acidophilus was administered orally in mice with dextran sodium sulfate (DSS)-induced colitis. DSS-induced damage and the therapeutic effect of L. acidophilus were investigated. Treatment with L. acidophilus attenuated the severity of DSS-induced colitis. Specifically, it suppressed proinflammatory cytokines such as interleukin (IL)-6, tumor necrosis factor-alpha, IL-1beta, and IL-17 in the colon tissues, which are produced by T helper (Th) 17 cells. Moreover, in vitro L. acidophilus treatment directly induced T regulatory (Treg) cells and the production of IL-10, whereas the production of IL-17 was suppressed in splenocytes. In addition, we found that L. acidophilus treatment decreased the levels of alpha-smooth muscle actin, a marker of activated myofibroblasts, and type I collagen compared with control mice. These results suggest that L. acidophilus may be a novel treatment for IBD by modulating the balance between Th17 and Treg cells, as well as fibrosis development. PMID- 29336662 TI - Body mass index in HER2-negative metastatic breast cancer treated with first-line paclitaxel and bevacizumab. AB - The evidence emerged from the TOURANDOT trial encourages evaluating the role of anthropometric determinants on treatment outcomes in HER2-negative metastatic breast cancer patients treated with bevacizumab-including regimens. We thus analyzed data from a subgroup of these patients from a larger cohort previously assessed for treatment outcomes. Patients were included in the present analysis if body mass index values had been recorded at baseline. Clinical benefit rates, progression free survival and overall survival were assessed for the overall study population and subgroups defined upon molecular subtype. One hundred ninety six patients were included (N:196). Body mass index showed no impact on clinical benefit rates in the overall study sample and in the luminal cancer subset (p = 0.12 and p = 0.79, respectively), but did so in the triple negative subgroup, with higher rates in patients with body mass index >=25 (p = 0.03). In the overall study sample, body mass index did no impact progression free or overall survival (p = 0.33 and p = 0.67, respectively). Conversely, in triple negative patients, progression free survival was significantly longer with body mass index >=25 (6 vs 14 months, p = 0.04). In this subset, overall survival was more favorable (25 vs 19 months, p = 0.02). The impact of the molecular subtype was confirmed in multivariate models including the length of progression free survival, and number of metastatic sites (p < 0.0001). Further studies are warranted to confirm our findings in more adequately sized, ad hoc, prospective studies. PMID- 29336664 TI - Grab and passive sampling applied to pesticide analysis in the Sao Lourenco river headwater in Campo Verde - MT, Brazil. AB - In this study, the quality of surface water in the headwaters of Sao Lourenco River in Mato Grosso, Brazil, was evaluated in relation to contamination by pesticides. For this purpose, samples were collected between December 2015 and June 2016 by grab sampling and by passive sampling using an integrative polar organic compound sampler installed in the field during four 14-day cycles between March and June 2016. The analyses were performed by gas chromatography (CG/MS) and by liquid chromatography (UPLC-MS/MS). The results showed the detection of two pesticides (atrazine and pyraclostrobin) of the five analyzed by passive sampling and eight active principles among the 20 analyzed (malathion, diuron, carbofuran, carbendazim, trifluralin, imidacloprid, metolachlor, and acetamiprid) by grab sampling. The detection of 10 pesticides, even almost a decade after the beginning of a recovery process of the ciliary forest, confirms the headwaters' vulnerability to these contaminants and passive sampling proved to be an important tool in capturing small concentrations of pesticides constituting an interesting complement to grab sampling. PMID- 29336665 TI - Pesticide exposure and health conditions among orange growers in Southern Brazil. AB - This study aimed to evaluate the exposure to pesticides through the biomarkers analysis, as well as life habits and use of Personal Protective Equipment (PPE) in a group of farmers who grow citrus in the Vale do Cai region, in Rio Grande do Sul, southern Brazil. The study population consisted of 73 volunteer farmers, 45 males and 28 females, aged between 13 and 69 years old. The control group consisted of 30 individuals who were not exposed to pesticides. Measures of urea, creatinine, aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyltransferase (GGT), plasma cholinesterase (BChE) activity, and hematological parameters were analyzed. The study population also answered a structured questionnaire on life habits and health. The results showed that BChE activity was significantly lower in the exposed group than in the control group. AST, ALT, and creatinine were increased in the group of women exposed to pesticides when compared to the control group. GGT, urea, and hematological parameters did not show statistical differences for both male and female group. The most prevalent symptom reported by farmers after exposure to pesticides was headache. Furthermore, it was verified that the use of complete PPE is only made by 38% of the studied population. PMID- 29336666 TI - Educational Needs of Health Professionals Caring for Adolescents and Young Adults with Cancer. AB - BACKGROUND: Young people with cancer have distinct clinical and psychosocial needs during and after cancer treatment. However, as adolescent and young adult (AYA) cancer is rare, and only recently recognized as specialty, health professionals may not have the skills, competence, and confidence to meet the needs of the young patient with cancer. The aim of this study was to identify the learning needs of health professionals providing cancer care to adolescents and young adults before and following the introduction of a state-wide AYA cancer education program. METHODS: A survey of educational needs of health professionals was undertaken in 2013 at the commencement of the Queensland Youth Cancer Service. The survey was used to develop the education program of the service. The education program was delivered across the state in a variety of formats, covering a range of topics throughout 2013-2016. The second survey was completed in 2017. Results were compared to identify if educational needs or the self-rated confidence of health professionals in regard to AYA cancer care had changed over time. RESULTS: One hundred twenty-two participants completed the first survey and 73 completed the second. The most prominent educational needs in 2013 were palliative care and biomedical topics such as understanding AYA growth and development as well as specific AYA cancers and treatment. The second survey identified that palliative care education remained important; however, there was a shift toward health professionals request for more psychosocial and practical education on topics including fertility, sexuality, and managing late effects. CONCLUSION: To provide high-quality healthcare to AYAs with cancer, health professionals require ongoing opportunities for education and training. PMID- 29336667 TI - Influence of long-term consumption of bitter apricot seeds on risk factors for cardiovascular diseases. AB - The present study was designed to reveal whether long-term consumption of bitter apricot seeds causes changes in lipid profile and other risk factors for cardiovascular diseases. The study group consisted of 12 healthy adult volunteers (5 females and 7 males). The average age of women was 41.60 +/- 11.28 years and the average age of men was 36.71 +/- 13.70 years. Volunteers consumed 60 mg kg-1 of body weight of bitter apricot seeds divided into 8-12 doses daily for 12 weeks. Volunteers were recruited from the general population of Slovak Republic. After 12 weeks, mean body weight of the participants increased from 77.34 to 78.22 kg (P > 0.05). The average total cholesterol levels decreased from 4.86 mmol L-1 at the beginning of the study to 4.44 mmol L-1 at the end of the study (P < 0.05). We did not observe any significant increase in high-density cholesterol (from 1.55 to 1.60 mmol L-1). The average low-density cholesterol levels decreased from 2.93 mmol L-1 at the beginning of the study to 2.31 mmol L 1 at the end of the study (P < 0.001). Concentration of triglycerides increased significantly over the 12-week intervention period from 0.84 to 1.17 mmol L-1. After the intervention, the high-sensitivity C-reactive protein level decreased from 1.92 to 1.23 mg L-1, but results were non-significant (P > 0.05). Creatine kinase serum levels increased from 2.31 to 2.77 mg L-1 (P > 0.05) over the 12 week intervention period. The results suggest that regular intake of bitter apricot seeds may be considered potentially useful for prevention of cardiovascular diseases. PMID- 29336668 TI - Safety and biodistribution of sulfated archaeal glycolipid archaeosomes as vaccine adjuvants. AB - Archaeosomes are liposomes comprised of ether lipids derived from various archaea. Unlike conventional ester-linked liposomes, archaeosomes exhibit high pH and thermal stability. As adjuvants, archaeosomes can induce robust, long-lasting humoral and cell-mediated immune responses and enhance protection in murine models of infectious disease and cancer. Archaeosomes constituted with total polar lipids (TPL) of various archaea are relatively complex, comprising >10 different lipid compounds. Archaeosomes can be constituted with semi-synthetic glycerolipids built on ether-linked isoprenoid phytanyl cores with varied synthetic glycol- and amino-head groups. However, such semi-synthetic archaeosomes involve many synthetic steps to arrive at the final desired glycolipid composition. We have developed a novel archaeosome formulation comprising a sulfated saccharide group covalently linked to the free sn-1 hydroxyl backbone of an archaeal core lipid (sulfated S-lactosylarchaeol, SLA) mixed with uncharged glycolipid (lactosylarchaeol, LA). This new class of adjuvants can be easily synthesized and retains strong immunostimulatory activity for induction of cell-mediated immunity following systemic immunization. Herein, we demonstrate the safety of SLA/LA archaeosomes following intramuscular injection to mice and evaluate the immunogenicity, in vivo distribution and cellular uptake of antigen (ovalbumin) encapsulated into SLA/LA archaeosomes. Overall, we have found that semi-synthetic sulfated glycolipid archaeosomes are a safe and effective novel class of adjuvants capable of inducing strong antigen specific immune responses in mice and protection against subsequent B16 melanoma tumor challenge. A key step in their mechanism of action appears to be the recruitment of immune cells to the injection site and the subsequent trafficking of antigen to local draining lymph nodes. PMID- 29336669 TI - First-line treatment of apatinib in elderly patient of advanced gastric carcinoma: A case report of NGS-driven targeted therapy. AB - Gastric carcinoma (GC) is a common gastrointestinal malignancy with high incidence and mortality worldwide, and most patients are diagnosed in the late stages of disease. Palliative chemotherapy provides a survival benefit for patients with inoperable advanced GC. However, elderly patients who are unable to tolerate chemotherapy had worse prognosis due to lack of effective treatment. Herein we reported a Chinese elderly GC patient using next generation sequencing (NGS)-based tumor DNA analysis. Valuable gene variants of vascular endothelial growth factor (VEGF) A gene amplification were detected. Additionally, a novel NOTCH1-BPHL fusion has been identified. He received antiangiogenic drug apatinib and showed both good clinical and radiographic response, but eventually died of non-cancer related cause, with progression free survival time (PFS) and overall survival time (OS) up to 9.53 months. This was the first GC case with apatinib usage as first-line treatment under the guidance of NGS gene profiling. PMID- 29336670 TI - Does Drug Use Inhibit Crime Deceleration or Does Crime Inhibit Drug Use Deceleration? A Test of the Reciprocal Risk Postulate of the Worst of Both Worlds Hypothesis. AB - BACKGROUND: Prior research has shown that ongoing drug use inhibits the commonly reported maturing out of crime process and that ongoing crime inhibits the commonly reported maturing out of drug use process. OBJECTIVES: To test the predictive efficacy of drug use for crime deceleration and of crime for drug deceleration using a prospective analysis of data on a group of 524 male California Youth Authority parolees to see if both effects exist simultaneously. METHOD: A two-equation regression analysis of Year 3 arrests and illicit drug use was performed, controlling for age, race, marital status, employment status, and number of months free in the community. RESULTS: It was determined that illicit drug use at Year 2 predicted an increase in arrests between the first and third years of the analysis and arrests at Year 2 predicted an increase in illicit drug use over this same time period. Alcohol use, on the other hand, failed to predict a change in arrests and arrests failed to predict a change in alcohol use. CONCLUSIONS: The results of this study suggest that illicit drug use may inhibit the natural maturing out of crime process observed in emerging adults whereas involvement in crime may inhibit the natural maturing out of illicit drug use process. These findings not only support the reciprocal risk postulate from the Worst of Both Worlds hypothesis but also have implications for risk prediction, risk management, and treatment. PMID- 29336671 TI - The Indirect Effect of Ethnic Identity on Marijuana Use Through School Engagement: An African American High School Sample. AB - BACKGROUND: African American marijuana use is associated with many negative social, emotional, and health-related consequences. Of significance, over recent years this population has shown an increase in use. In the literature, ethnic identity and school engagement are prominent protective factors against substance use. OBJECTIVE: This study will examine how these protective factors are related, specifically whether ethnic identity mitigates risk through school engagement to reduce marijuana use. METHOD: A path analysis was conducted with 437 African American high school students (41% male) from Midwestern schools to examine the role of school engagement in the relationship between ethnic identity and marijuana use. RESULTS: The results revealed that students high in ethnic identity have higher school engagement, which lessens their frequency of marijuana use. Therefore, ethnic identity reduces marijuana use by increasing student's school engagement. Conclusions/Importance: The results offer a clearer picture of how ethnic identity and school engagement protect against marijuana use. The results also present insight into how to protect students who are low in ethnic identity. PMID- 29336672 TI - Internal Cs+ inhibits root elongation in rice. AB - The root system anchors the plant to the soil and contributes to plant autotrophy by taking up nutrients and water. In relation with this nutritional function, root development is largely impacted by availability of nutrients and water. Due to human activity, plants, in particular crops, can also be exposed to pollutants which can be absorbed and incorporated into the food chain. Cesium in soils is present at non-toxic concentrations for the plant (micromolar or less), even in soils highly polluted with radioactive cesium due to nuclear accidents. Here, we report on the morphological response of rice roots to Cs+ at micromolar concentrations. It is shown that Cs+ reduces root elongation without affecting root dry weight. Noteworthy, inactivation of the Cs+-permeable K+ transporter OsHAK1 prevents such effect of Cs+, suggesting that internal Cs+ triggers the modification of the root system. PMID- 29336673 TI - A practical synthesis of xylo- and arabinofuranoside precursors by diastereoselective reduction using Corey-Bakshi-Shibata catalyst. AB - The Corey-Bakshi-Shibata (CBS) catalyst provides an efficient mechanism to reduce ketones and achieve desired enantiopure alcohols. Herein, the diastereoselective reduction of C-2' and C-3'-keto ribofuranoside derivatives to the corresponding arabino- and xylofuranosides in greater than 95% diastereomeric excess is reported. The stereo-directed substitution with an azido group as well as the synthesis of prodrugs cytarabine and vidarabine are also described. The reported strategy offers superior diastereoselectivity, shorter reaction times, and obviates cooling required with comparable protocols involving achiral reductants. PMID- 29336674 TI - A facile synthesis of novel pyrazolopyrimidine thioglycosides as purine thioglycoside analogues. AB - The easy, convenient and high yielding preparation of new thioglycosides incorporating mercaptopyrazolo[1,5-a]pyrimidine moieties from readily accessible starting materials has been reported. The main step of this protocol is the formation of 7-mercaptopyrazolo[1,5-a]pyrimidine-6-carbonitrile derivatives 4a-d by condensation of sodium 2-cyano-3-ethoxy-3-oxoprop-1-ene-1,1-bis(thiolate) 1 with 4-(aryldiazenyl)-1H-pyrazole-3,5-diamines 3a-d to form target compounds 4a d, which coupled with tetra-O-acetyl-alpha-D-glycopyranosyl bromides 5a,b in the presence of basic medium to provide the corresponding product purine thioglycoside analogs 6a-h. Ammonolysis of the latter compounds 6a-d at ambient temperature for 10 minutes, led to the free glycoside derivatives 7a-h, which were obtained in approximately quantitative yields. Their structures were created based on the spectroscopic and elemental data. PMID- 29336675 TI - Synthesis and cytotoxic activity of novel acyclic nucleoside analogues with functionality in click chemistry. AB - We describe synthesis of novel acyclic nucleoside analogues which are building blocks for CuAAC reaction and their activity against two types of human cancer cell lines (HeLa, KB). Three of chosen compounds show promising cytotoxic activity. Synthesis pathway starting from simple and easily accessible substrates employing DMT or TBDPS protective groups is described. Adenosine and thymidine analogues containing alkyne moiety and adenosine analogue containing azido group were synthesized. The obtained units showed ability of forming triazole motif under the CuAAC reaction conditions. PMID- 29336676 TI - Vasopressors in Sepsis. AB - BACKGROUND: Sepsis accounts for 10% of intensive care unit admissions and significant healthcare costs. Although the mortality rate from sepsis has been decreasing with better critical care, early identification of septic patients, and prompt interventions, the mortality rate remains 20%-30%. METHOD: Review of the English-language literature. RESULTS: Norepinephrine is the first-line vasopressor in shock and is associated with a lower mortality rate as well as fewer adverse effects. Dopamine has similar actions but is associated with significantly more tachydysrhythmias and should be reserved for patients with bradycardia. Epinephrine and vasopressin are appropriate second-line vasopressors and may enable use of lower doses of norepinephrine while improving hemodynamics. Inotropes may be added in patients with cardiac dysfunction. CONCLUSION: Appropriate treatment of sepsis includes prompt identification, early antimicrobial drug therapy, appropriate fluid resuscitation, and initiation of vasopressors in the presence of continued septic shock. Further research needs to be done to better understand the ideal timing of the addition of a second agent and the optimal combinations of vasopressors for individual patients. PMID- 29336677 TI - Molecular Screening Versus Phenotypic Susceptibility Testing of Multidrug Resistant Mycobacterium tuberculosis Isolates for Streptomycin and Ethambutol. AB - Proper management of multidrug-resistant tuberculosis (MDR-TB) requires accurate drug susceptibility testing (DST) of Mycobacterium tuberculosis isolates to other (ethambutol [EMB], pyrazinamide, and streptomycin [SM]) first-line drugs. This study compared the performance of Mycobacterium Growth Indicator Tube (MGIT) 960 system for DST of MDR-TB isolates with polymerase chain reaction (PCR) sequencing of embB, rpsL, and rrs genes for detecting resistance to EMB and SM. MDR-TB strains (n = 60) and 25 pansusceptible M. tuberculosis isolates collected during 2011-2016 were tested. Phenotypic DST was performed by MGIT 960 system by using SIRE drug kit. EMB and SM resistance-conferring mutations in embB and rpsL+rrs genes, respectively, were detected by PCR sequencing. No mutations were detected in pansusceptible isolates. Among 60 MDR-TB strains, 35 of 40 SM-resistant and none of 20 SM-susceptible isolates contained rpsL and/or rrs mutations (kappa = 0.82, very good agreement). However, all 18 EMB-resistant MDR-TB strains and 33 of 42 EMB-susceptible MDR-TB strains contained an embB mutation (kappa = 0.14, poor agreement). Thus, 40 of 60 (67%) and 35 of 60 (58%) isolates were resistant to SM (p = 0.451), while 18 of 60 (30%) and 51 of 60 (85%) isolates were resistant to EMB (p = 0.000) by MGIT 960 system and PCR sequencing, respectively. MGIT 960 system showed acceptable performance for DST for SM; however, it performed poorly for EMB as many MDR-TB strains with embB mutations, which confer low-level resistance to EMB, were detected as EMB susceptible. Molecular screening for resistance-conferring mutations in embB gene is thus superior to MGIT 960 system when accurate EMB susceptibility results are needed for proper management of MDR-TB patients. PMID- 29336678 TI - Phylogeny and diversity of the morphologically similar polypore genera Rigidoporus, Physisporinus, Oxyporus, and Leucophellinus. AB - Rigidoporus and its morphologically similar genera Physisporinus, Oxyporus, and Leucophellinus, which include some forest pathogens and medicinal species, are very important groups of wood-decaying fungi. Species of these genera have not only ecological functions, but also economic importance. Phylogenetic and taxonomic studies on taxa in these genera were carried out. Inferred from phylogenies based on DNA sequences of the nuc rDNA ITS1-5.8S-ITS2 (internal transcribed spacer [ITS]) and D1-D2 domains of nuc 28S rDNA, 36 species sampled that traditionally belong to Physisporinus, Rigidoporus, Leucophellinus, and Oxyporus are nested mostly in eight lineages. Of these lineages, five (including four genera of Physisporinus, Emmia, Flaviporus, and Flavodon and one taxon "R. hypobrunneus") belong to Polyporales and three (including the genera Rigidoporus, Bridgeoporus, and Leucophellinus) belong to Hymenochaetales. Rigidoporus and Oxyporus are merged because the type species of both genera are nested in a single lineage within Hymenochaetales. Some taxon previously placed in Ceriporia and Oxyporus are transferred to Emmia and Flavodon, respectively, on the basis of current phylogeny. Utilizing a combination of the morphological and phylogenetic evidence, 16 new combinations in Bridgeoporus, Emmia, Flaviporus, Flavodon, Rigidoporus, and Physisporinus are proposed. Five new species, Physisporinus crataegi, P. lavendulus, P. subcrocatus, P. tibeticus, and Rigidoporus submicroporus, are recognized from China. Illustrated descriptions of these novel species are provided. Three taxa are treated at the generic level of Physisporinus because of limited samples. PMID- 29336679 TI - Arcobacter butzleri Ciprofloxacin Resistance: Point Mutations in DNA Gyrase A and Role on Fitness Cost. AB - Arcobacter butzleri is a widely distributed emerging pathogen resistant to various classes of antimicrobial agents, namely fluoroquinolones. A. butzleri resistance to fluoroquinolones is conferred by point mutations at the antibiotic target. The aim of this study was to evaluate mutations at gyrA associated with ciprofloxacin resistance and evaluate whether acquisition of resistance impacts on fitness and stress tolerance of A. butzleri. A. butzleri ciprofloxacin mutants were generated by laboratory induction. Identification of mutations associated with ciprofloxacin resistance was performed by gyrA sequencing. Growth kinetics, cost of fitness, biofilm formation ability, and stress tolerance were assessed. Two amino acid substitutions in the quinolone resistance-determining region of GyrA were identified in the mutant strains, one previously described (Thr-85-Ile) and a new substitution (Asp-89-Tyr). No differences in growth kinetics were recorded between parental and mutant strains; however, fitness cost was variable, according to the genetic background of the strains, and independently of ciprofloxacin resistance. Overall, the ciprofloxacin resistance development did not significantly affect stress tolerance, motility, or biofilm-forming ability. In conclusion, acquisition of ciprofloxacin resistance in A. butzleri is associated with mutations in gyrA and is likely well compensated, with cost of fitness reflecting the diversity in genetic background of this bacterium. PMID- 29336680 TI - Relating soil geochemical properties to arsenic bioaccessibility through hierarchical modeling. AB - Interest in improved understanding of relationships among soil properties and arsenic (As) bioaccessibility has motivated the use of regression models for As bioaccessibility prediction. However, limits in the numbers and types of soils included in previous studies restrict the usefulness of these models beyond the range of soil conditions evaluated, as evidenced by reduced predictive performance when applied to new data. In response, hierarchical models that consider variability in relationships among soil properties and As bioaccessibility across geographic locations and contaminant sources were developed to predict As bioaccessibility in 139 soils on both a mass fraction (mg/kg) and % basis. The hierarchical approach improved the estimation of As bioaccessibility in studied soils. In addition, the number of soil elements identified as statistically significant explanatory variables increased when compared to previous investigations. Specifically, total soil Fe, P, Ca, Co, and V were significant explanatory variables in both models, while total As, Cd, Cu, Ni, and Zn were also significant in the mass fraction model and Mg was significant in the % model. This developed hierarchical approach provides a novel tool to (1) explore relationships between soil properties and As bioaccessibility across a broad range of soil types and As contaminant sources encountered in the environment and (2) identify areas of future mechanistic research to better understand the complexity of interactions between soil properties and As bioaccessibility. PMID- 29336681 TI - Exposure to firework chemicals from production factories in pregnant women and risk of preterm birth occurrence in Liuyang, China. AB - In the production of fireworks, various pollutants including particles of metals and organic compounds are released into the environment. Although the adverse effects of these air pollutants are known, the impact on pregnant women residing in this area remains to be determined. The aim of this study was to examine the association between maternal exposure to fireworks production chemicals and frequency of preterm birth in Liuyang, China. Maternal exposure to fireworks production was estimated at the residential district level and assessed using factory density, which was defined as the number of fireworks factories per 1000 residents in each district. The association of maternal exposure to particulates released from fireworks production plants with frequency of preterm birth was determined using data obtained from a cohort study conducted in Liuyang, China. Data were analyzed utilizing linear regression and logistic regression. There was no significant association between factory density and spontaneous preterm or medically induced preterm birth. Unexpectedly, pregnant women residing in areas with higher density of fireworks factories were at a reduced risk of preterm premature rupture of membranes (PPROM). Data demonstrated that residential density of fireworks factories appeared to be negatively correlated with preterm birth rate as evidenced by PPROM. At present, it is difficult to reconcile the inverse relationship between firework chemical exposure and frequency of preterm births as ambient particulate inhalation is known to adversely affect preterm birth occurrence. PMID- 29336682 TI - Preliminary phylogeny of Coemansia (Kickxellales), with descriptions of four new species from Taiwan. AB - Four new species of Coemansia from Taiwan are described. Three produce spirally twisted sporangiophores, and these new taxa increase the number of species in the Coemansia spiralis complex from three to six. Each new taxon is morphologically unique. Coemansia biformis, sp. nov., has two different asexual reproductive types on the same thallus; one is straight and the other has a spiral fertile region. Coemansia helicoidea, sp. nov., has stoloniferous sporangiophores with a helicoid fertile region. Coemansia pennisetoides, sp. nov., has a sporangiophore with a fertile region that resembles the inflorescence of the plant genus Pennisetum. Coemansia umbellata, sp. nov., has an umbellate sporangiophore branching pattern and a spirally twisted fertile region on the lowest branches. A dichotomous key was provided to identify the 23 accepted Coemansia species. Phylogenetic analysis based on a combined data set of D1-D2 domains of nuc 28S ribosomal RNA (rDNA) and partial nuc 18S rDNA identifies several independent evolutionary lineages within Coemansia and suggests that Spirodactylon aureum and Kickxella alabastrina may be nested within the genus Coemansia. Sequences of nuc rDNA ITS1-5.8S-ITS2 (internal transcribed spacer [ITS] barcode) are also used to support the description of these new species of Coemansia. PMID- 29336683 TI - Adsorption of 2,4-dichlorophenoxyacetic acid and 4-chloro-2-metylphenoxyacetic acid onto activated carbons derived from various lignocellulosic materials. AB - Adsorption of 2,4-dichlorophenoxyacetic acid (2,4-D) and 4-chloro-2 metylphenoxyacetic acid (MCPA) from aqueous solution onto activated carbons derived from various lignocellulosic materials including willow, miscanthus, flax, and hemp shives was investigated. The adsorption kinetic data were analyzed using two kinetic models: the pseudo-first order and pseudo-second order equations. The adsorption kinetics of both herbicides was better represented by the pseudo-second order model. The adsorption isotherms of 2,4-D and MCPA on the activated carbons were analyzed using the Freundlich and Langmuir isotherm models. The equilibrium data followed the Langmuir isotherm. The effect of pH on the adsorption was also studied. The results showed that the activated carbons prepared from the lignocellulosic materials are efficient adsorbents for the removal of 2,4-D and MCPA from aqueous solutions. PMID- 29336684 TI - A Systematic Search and Review of Adult-Targeted Overweight and Obesity Prevention Mass Media Campaigns and Their Evaluation: 2000-2017. AB - Mass media campaigns are a commonly used strategy in public health. However, no review has assessed whether the design and evaluation of overweight and obesity campaigns meets best practice recommendations. This study aimed to fill this gap. We systematically searched five databases for peer-reviewed articles describing adult-targeted obesity mass media campaigns published between 2000 and 2017, complemented by reference list searches and contact with authors and agencies responsible for the campaigns. We extracted data on campaign design, implementation, and evaluation from eligible publications and conducted a qualitative review of 29 publications reporting on 14 campaigns. We found a need for formative research with target audiences to ensure campaigns focus on the most salient issues. Further, we noted that most campaigns targeted individual behaviors, despite calls for campaigns to also focus upstream and to address social determinants of obesity. Television was the dominant communication channel but, with the rapid advance of digital media, evaluation of other channels, such as social media, is increasingly important. Finally, although evaluation methods varied in quality, the evidence suggests that campaigns can have an impact on intermediate outcomes, such as knowledge and attitudes. However, evidence is still limited as to whether campaigns can influence behavior change. PMID- 29336685 TI - Seroprevalence of Q Fever Among the Indigenous People (Orang Asli) of Peninsular Malaysia. AB - Q fever is a disease caused by Coxiella burnetii. It is a disease of public health concern in many parts of the world. In this study, we described the seroprevalence of Q fever among selected populations of Orang Asli (OA), indigenous people, many of whom live within the forest fringe areas of Peninsular Malaysia. Serum samples were obtained from 887 OA participants from selected villages. Samples were analyzed for the presence of IgG antibodies reactive against C. burnetii by enzyme-linked immunosorbent assay. Statistical methods were used to identify possible associations between seropositivity for C. burnetii and a number of demographic variables obtained from the questionnaires. In total, 9.6% (n = 85/887) of the serum samples were reactive to C. burnetii. Statistical results suggest that elderly male OA residing in OA village, Bukit Payung, were most likely to be tested seropositive for C. burnetii. This study suggests that OA are at a significant risk of contracting C. burnetii infection, and both demographic and geographic factors are important contributors to this risk. Further prospective studies are needed to establish the true burden of C. burnetii infection within the indigenous population as well as within Peninsular Malaysia as a whole. PMID- 29336686 TI - Phylogeny and taxonomy of Favolus (Basidiomycota). AB - Favolus is a natural genus that is closely related to Polyporus. A taxonomic study of Favolus was carried out based on morphological characteristics and phylogenetic analysis of the internal transcribed spacer (ITS) region (ITS1-5.8S ITS2 = ITS) and 18S and 28S genes of the nuc rDNA, translation elongation factor 1-alpha gene (TEF1-alpha), the mt 16S rDNA gene (mt rrnS), beta-tubulin gene (TBB1), and the RNA polymerase II largest subunit (RPB1) and second largest subunit (RPB2) genes. Fourteen specimens collected from subtropical to tropical regions in China were shown to be different from existing Favolus species. They are described and illustrated here as four new species, namely, Favolus niveus, F. septatus, F. pseudoemerici, and F. subtropicus. PMID- 29336687 TI - Reasons why undergraduate women comply with unwanted, non-coercive sexual advances: A serial indirect effect model integrating sexual script theory and sexual self-control perspectives. AB - This study explored the predictors of young women's compliance with unwanted sexual activities, integrating the social with the cognitive and behavioral correlates of sexual compliance. In total, 222 young heterosexual women completed measures examining the Sexual Self-Control model, including reasons for consenting, sexual resourcefulness, and compliance with unwanted sex, as well as gender role measures pertaining to sexual script theory, including the sexual double standard, gender role stress, and virginity scripts. An exploratory analysis of serial indirect effects demonstrated that women scoring lower in sexual resourcefulness endorsed higher female gender role stress, which in turn was associated with higher endorsement of reasons for consent, translating into more frequent compliance with unwanted sexual activities. The relationship between one's ability to refuse and their decision to refuse appears quite complex. Understanding one's decision requires consideration of the social aspects of gender role endorsement. PMID- 29336688 TI - Beliefs about Memory as a Mediator of Relations between Metacognitive Beliefs and Actual Memory Performance. AB - The goal of the present study was to investigate relationships between personal beliefs about memory, metacognitive beliefs, and actual memory performance. One hundred thirty-seven participants' (aged 20 to 60 years) metacognitive beliefs were measured using the Metacognition Questionnaire (MCQ-30), memory beliefs were measured using the Personal Beliefs about Memory Instrument (PBMI), and an episodic memory task was used to measure actual memory performance, memory predictions, and postdictions. Younger adults had lower scores on the positive beliefs subfactor of the MCQ-30, higher scores on retrospective change and control subfactors of the PBMI, and outperformed middle-aged adults on recall and recall postdiction. Path analysis showed that individuals' beliefs about memory mediate the relationship between metacognitive beliefs and actual memory performance. Specifically, low lack of confidence (or less worry) in one's own memory and attentional capabilities was related to higher memory performance and positive personal beliefs regarding specific memory ability mediated relationship. PMID- 29336689 TI - A Molecular Survey of Tick-Borne Pathogens from Ticks Collected in Central Queensland, Australia. AB - Central Queensland (CQ) is a large and isolated, low population density, remote tropical region of Australia with a varied environment. The region has a diverse fauna and several species of ticks that feed upon that fauna. This study examined 518 individual ticks: 177 Rhipicephalus sanguineus (brown dog tick), 123 Haemaphysalis bancrofti (wallaby tick), 102 Rhipicephalus australis (Australian cattle tick), 47 Amblyomma triguttatum (ornate kangaroo tick), 57 Ixodes holocyclus (paralysis tick), 9 Bothriocroton tachyglossi (CQ short-beaked echidna tick), and 3 Ornithodoros capensis (seabird soft tick). Tick midguts were pooled by common host or environment and screened for four genera of tick-borne zoonoses by PCR and sequencing. The study examined a total of 157 midgut pools of which 3 contained DNA of Coxiella burnetii, 13 Rickettsia gravesii, 1 Rickettsia felis, and 4 other Rickettsia spp. No Borrelia spp. or Babesia spp. DNA were recovered. PMID- 29336690 TI - Advanced glaucoma at presentation is associated with poor follow-up among glaucoma patients attending a tertiary eye facility in Southern Nigeria. AB - PURPOSE: Globally, particularly in Africa, poor compliance with medication is a major problem in glaucoma management but little is known about follow-up rates among African glaucoma patients. The aim of this study was to determine rates of follow-up among glaucoma patients attending a tertiary hospital in southern Nigeria and investigate predictors of poor follow-up. METHODS: Data were extracted from medical records of new glaucoma patients who attended the hospital between June 2011 and May 2013. Socio-demographic and clinical parameters (visual acuity; stage of glaucoma) recorded at diagnosis were extracted using a pre tested form. Follow-up was defined as good if they had attended within 9 months of the study date, inadequate when the last follow-up was more than 9 months and failed if they did not attend any follow-up or the most recent visit was more than 14 months from the study date. Univariate and multivariable analyses were undertaken to explore predictors of poor follow-up (inadequate plus failed). RESULTS: Three hundred forty-eight patients were recruited, 54% were male and the mean age was 52.7 (range 16-88) years. Follow-up was as follows: good 28.4%, inadequate 46.6%, failed 25%. Overall, 71.6% had poor follow-up. Independent predictors of poor follow-up were poorer visual acuity (OR 3.85, 95% confidence interval (CI) 1.25-11.80 for visual impairment; OR 4.11, 95% CI 1.32-12.81 for blind) and end-stage glaucoma (OR 3.55 (1.31-9.62), p = 0.01). CONCLUSION: Enhanced counselling of patients with moderate to advanced glaucoma and visual impairment is required to improve follow-up and hence glaucoma management. PMID- 29336691 TI - The evaluation of Cr-curcumin-DNA complexation by experimental and theoretical approaches. AB - Chromium(III) chloride mediates DNA-DNA cross-linking. Some chromium complexes promote programmed cell death in specific ligand environment through binding to DNA. One strategy that can be supposed for reduction of Cr3+ binding affinity to DNA is using curcumin as a chelator. In the current study, the [Cr(Curcumin)(EtOH)2](NO3)2 (CCC) was synthesized and characterized by UV/Vis, FT IR, CHN and spectrophotometric titration techniques. The mole ratio plot revealed a 1:1 complex between Cr3+ and curcumin in solution. Binding interaction of this complex with calf thymus-DNA (CT-DNA) was investigated using UV/Vis, circular dichroism (CD), FT-IR and cyclic voltammetry. The intrinsic binding constants of CCC with DNA, measured by UV/Vis and cyclic voltammetry, were 1.60 * 105 and 1.13 * 105, respectively. The thermodynamic studies showed that the reaction is enthalpy and entropy favoured. CD analysis revealed that only Lambda-CCC interacts with DNA and Delta-CCC form has no tendency towards DNA. Based on FT-IR studies, it was understood that CCC interacts with DNA via minor groove binding. The docking simulation was carried out for finding the binding mode of CCC to DNA, too. All of data demonstrated that the curcumin significantly reduced the affinity of Cr3+ to the DNA and the form of Delta-CCC has no interaction with DNA. PMID- 29336692 TI - The First Serological Study of Q Fever in Humans in Lebanon. AB - OBJECTIVE: The aim of this study was to estimate, for the first time, the human seroprevalence of Q fever in Lebanon, by assessing the presence of antibodies against the causative agent, Coxiella burnetii. A total number of 421 serum samples (226 females and 196 males) were collected in February 2015 from hospitals and laboratories dispersed in five Lebanese provinces: Akkar, Bekaa, Mount Lebanon, Nabatieh, and South Lebanon. METHODS: Serial testing approach was used. Samples were first screened for IgG phase II antibodies against C. burnetii by Enzyme Linked Immunosorbent Assay (ELISA) Kit. Then, both positive and inconclusive sera were reexamined by immunofluorescence assay (IFA) test with the aims to confirm and specify the infection status (past or probably acute infection) by detecting IgG (I/II) and IgM (I/II) in human sera. RESULTS: Screening of 421 samples was estimated to be 38.70% (95% CI 34-43.3) positive samples, 5.90% (95% CI 3.7-8.2) suspect samples (as doubtful results), and 55.40% (95% CI 50.7-60.1) negative samples. Furthermore, all positive and suspect samples by ELISA test were retested by immunofluorescence assay test (IFAT), and the prevalence of positive sample was 37% and the infection case was recorded: 23.75% (95% CI 19.7-27.8) samples resulted from past infection, 1.9% (95% CI 0.6 3.2) probably acute infection characterized by several dominance clinical symptoms as: fever, cough, headache, difficulty breathing, and atypical pneumonia, and 0.23% (95% CI 0-0.7) inconclusive sample accompanied by different symptoms as bone metastasis and lung cancer. CONCLUSION: The study records the exposition of 37% of 421 patients to C. burnetii distributed in five Lebanese provinces with the highest seroprevalence in Bekaa and Akkar provinces and the lowest reported in Mount Lebanon. This difference may be due to the presence of high density of livestock production and of major agricultural areas in these two provinces. PMID- 29336693 TI - Self-Other Differentiation Scale: Dimensionality, IRT Parameterization, and Measurement Invariance. AB - The Self-Other Differentiation Scale (Olver, Aries, & Batgos, 1989 ) is a self report instrument assessing the experience of a separate sense of self from others. The authors aimed to examine its dimensionality, reliability, and measurement invariance across gender. It was completed by 348 participants (48% men) from 17 to 30 years old in Study 1, 348 participants (40% men) from 18 to 28 years old in Study 2, and 1,068 participants (49% men) from 17 to 28 years old in Study 3. The results supported the hypothesis of just one factor underlying the scale; they also showed an appropriate internal consistency and a partial measurement invariance across gender. Results also showed evidence for a 10-item version of the scale. Globally, the Self-Other Differentiation Scale can be considered a good scale to assess individual's sense of differentiation of one's own sense of self from others. PMID- 29336694 TI - "It has changed my whole life": The systemic implications of chronic low back pain among older adults. AB - Chronic low back pain (CLBP) is the most common pain complaint among older adults. Despite its prevalence, very little research has qualitatively examined the diverse consequences of living with CLBP in later life. As part of a larger study aiming to understand the experience of CLBP among older adults, the objective of this manuscript is to understand how older adults experience CLBP and its impacts on the functioning of older adults. Guided by van Manen's phenomenological method, 23 semi-structured interviews with 21 pain clinic patients aged 66-83 were conducted. Through an iterative process assisted by NVivo 11 software, researchers used line-by-line thematic coding to identify main impacts of CLBP. Under the main theme "It has changed my whole life," results are reflected in six subthemes: (a) Pain damages sense of self; (b) trapped in a body that doesn't work anymore; (c) me, my partner, and my pain; (d) pain complicates family relationships; (e) painfully employed; and (f) feeling socially and recreationally repressed. This study improves our understanding of older pain clinic patients' experience of living with debilitating CLBP and offers direction for social work intervention in the context of multidisciplinary pain management. PMID- 29336695 TI - "Ghosts from the past": The re-emergence of internalized religious stigma following diagnosis of HIV among Northern Irish gay men. AB - This article explores how previous exposure to religious homonegativity features in the sense-making process following HIV diagnosis in a homogenous sample of six gay men living in Northern Ireland. Interpretive phenomenological analysis was used to identify two key overarching themes: Negotiating authenticity in unsafe space, which relates to the experience of negotiating same-sex attraction within religious environments, and Re-emergence of religious shame in diagnosis, which relates to the way in which the men made sense of diagnosis from the position of having been exposed to religious homonegativity earlier in their lives. Findings demonstrate how the men negotiated their sexual orientation within religious contexts and how a reconstruction of God was necessary to preserve an authentic sense of self. Despite reaching reconciliation, HIV was initially appraised within a retributive religious framework that served to temporarily reinforce previously learned shame-based models of understanding this aspect of the self. PMID- 29336696 TI - Controlled Adverse Environment Chambers in Dry Eye Research. AB - Dry eye disease (DED) is a common condition with signs and symptoms that vary depending on a wide range of environmental factors to which people are exposed in their daily lives. Factors such as variable temperature, airflow velocity, relative humidity, seasonality, and pollutants can alter the rate of tear film evaporation, improving or exacerbating symptoms of DED. Results from currently available clinical tests do not always correlate well with patient-reported symptoms, and the continually changing environment and variability in DED symptoms present challenges for the design and conduct of clinical trials. Controlled adverse environment chambers allow standardization of temperature, humidity, and airflow and may minimize potential confounding factors in clinical investigations. Their use can promote accurate study of the pathophysiology of DED, discovery of disease biomarkers, and assessment of the effect of various therapeutic approaches on patients' symptoms. Controlled adverse environment chambers have been used to simulate indoor surroundings such as airplane cabins and to test their effects on contact lens wearers. This review summarizes how these chambers may be useful for the development, approval, and differentiation of potential new treatments for DED. PMID- 29336697 TI - Understanding Knowledge, Attitudes, and Behaviors Toward West Nile Virus Prevention: A Survey of High-Risk Adults in Maryland. AB - OBJECTIVE: To assess knowledge, attitudes, and behaviors toward West Nile virus (WNV) prevention among Maryland adults >=60 years old who are at increased risk of severe WNV disease utilizing the health belief model. METHODS: Using a stratified random sample of households from zip codes with >=2 human WNV cases, we conducted a telephone survey of 211 Maryland adults >=60 years old between October and December 2012. RESULTS: Participants expressing worry about WNV were over thrice more likely to use insect repellent in the prior 90 days (adjusted odds ratio [aOR] = 3.46, 95% confidence interval [CI] = 1.33-8.95) and nearly thrice more likely to drain standing water around their homes than those not worried (aOR = 2.86, 95% CI = 1.25-6.52). Respondents perceiving a benefit in paying less for WNV vaccine were more likely to support mosquito control programs (aOR = 16.00, 95% CI = 1.50-170.68). CONCLUSIONS: Future interventions to promote WNV prevention among older adults should seek to enhance perceptions of vulnerability to WNV through risk communication, including media outreach and written messaging, emphasizing the benefits of personal protective behaviors. Community partnerships may aid in outreach to this population. PMID- 29336698 TI - It makes you keep trying: Life review writing for older adults. AB - Life review writing produces numerous psychosocial benefits for older adults, who are at risk for isolation and depression. This article shares findings from a study that examined the experiences of older adults participating in a life review writing group. The impact of gender composition on the group dynamic was also explored. Using interpretative phenomenological analysis, this study explored the experiences of six women and one man who participated in a life review writing group. Six unifying themes emerged from the research findings: (1) legacy, (2) connecting with others, (3) reflection, (4) vitality, (5) structure of the group, and (6) gender dynamics. Implications for theory, practice, and research are discussed. PMID- 29336699 TI - Persistent Ambivalence: Theorizing Queer East German Studies. AB - The German Democratic Republic (GDR; East Germany) had an ambivalent relationship with homosexuality. Under the principles of socialism, everyone was welcome to contribute to the greater good. The situation for queer people, here lesbians and gay men, was different: one of illegality and invisibility. A difficulty in analyzing these experiences is the theory and methodology necessary to find them and draw them together in a historical narrative. This essay offers a mode of analysis in which theories of affect illustrate long-term trends in East German conceptualizations of same-sex sexuality. By discussing a 1950 court ruling and a 1989 film, the essay demonstrates the persistence of homophobic prejudice and fear of homosexual seduction of young people and the links to historical and legal developments. PMID- 29336700 TI - Effect of Daily Exposure to an Isolated Soy Protein Supplement on Body Composition, Energy and Macronutrient Intake, Bone Formation Markers, and Lipid Profile in Children in Colombia. AB - A soy protein-based supplement may optimize bone health, support physical growth, and stimulate bone formation. This study aimed to assess the effect of a daily soy protein supplement (SPS) on nutritional status, bone formation markers, lipid profile, and daily energy and macronutrient intake in children. One hundred seven participants (62 girls), ages 2 to 9, started the study and were randomly assigned to lunch fruit juice with (n = 57, intervention group) or without (n = 50, control group) addition of 45 g (230 Kcal) of a commercial SPS during 12 months; 84 children (51 girls, 33 boys) completed the study (45 and 39 intervention and control, respectively). Nutritional assessment included anthropometry and nutrient intakes; initial and final blood samples were taken; insulin-like growth factor-I (IGF-I), osteocalcin, bone specific alkaline phosphatase (BAP), insulin-like growth factor binding protein-3 (IGFBP-3), cholesterol, triglycerides, low-density lipoprotein (LDL), and high-density lipoprotein (HDL) were analyzed. Statistically significant changes (p < .05) in body mass index and weight for age Z scores were observed between groups while changes in body composition were not. Changes in energy, total protein, and carbohydrate intakes were significantly higher in the intervention group (p < .01). Calorie intake changes were statistically significant between groups (p < .001), and BAP decreased in both groups, with values within normal ranges. Osteocalcin, IGFBP-3, and lipid profile were not different between groups. IGF-I levels and IGF/IGFBP-3 ratio increased significantly in both groups. In conclusion, changes in macronutrient and energy intake and nutritional status in the intervention group compared to control group may ensure harmonious and adequate bone health and development. PMID- 29336701 TI - Coming Out of the Shadows and the Closet: Visibility Schemas Among Undocuqueer Immigrants. AB - Centering the experiences of 31 undocuqueer immigrants, this study seeks to understand the ways that undocuqueer immigrants negotiate the boundaries of social performance by revealing or concealing their gender, sexuality, and immigration status. Findings of this study reveal how, in order to avoid the constant threat of rejection (both legal and social), undocuqueer immigrants engage visibility schemas and make strategic decisions about coming out of the shadows and the closet across different contexts. Undocuqueer immigrants' narratives reveal the ways the closet resembles the shadows in that both provide protection from the outside world, yet neither are considered suitable places for sustaining life. This study raises implications for both research and policy by considering how the intersection of gender, sexuality, and immigration status nullifies neoliberal narratives of coming out as an empowering process and illustrating the uneven landscapes of social acceptance and political control that undocuqueer immigrants must negotiate. PMID- 29336702 TI - A health agenda for Green Chemistry. PMID- 29336704 TI - Intent to use a web-based psychological intervention for partners of cancer patients: Associated factors and preferences. AB - This study examined partners of cancer patients intention to use a web-based psychological intervention, their preferences regarding its preconditions, functionalities and topics, and factors related to their intention. One hundred and sixty-eight partners completed a questionnaire about these aspects. Forty eight percent of the partners would (maybe) make use of a web-based intervention. Partners who intended to participate were significantly younger, used the Internet more often, and perceived more caregiver strain. Most partners preferred an intervention that takes less than 1 hour/week, lasts five weeks or more, and contains information and peer support. Half of the partners would like to receive online guidance. PMID- 29336705 TI - "Thinking about the future, what's gonna happen?"-How young people in Sweden who neither work nor study perceive life experiences in relation to health and well being. AB - PURPOSE: The aim of this study was to explore how young people in Sweden who neither work nor study perceive life experiences in relation to health and well being. METHODS: A task-based interview technique was used and data was analysed with qualitative content analysis. Interviews were conducted with 16 participants aged 16-20 who were unemployed and not eligible for upper secondary school, or who had dropped out of school. RESULTS: Three themes emerged from the analysis illustrating how the young people perceive their life experiences in relation to health and well-being: Struggling with hardships in the absence of caring connections, Feeling good when closely connected to others, and Being forced to question what has been taken for granted. Each theme consists of 2-3 subthemes. CONCLUSION: Based on the young people's narrated experiences health can be understood as: something that is created in relation to others and in relation to the social and cultural context; as something dynamic and changeable; as the ability to adapt and respond to challenges; and finally as something existing on a collective as well as an individual level. Implications for school, social services and health promotion initiatives are discussed, with an emphasis on working with young people. PMID- 29336706 TI - Family caregivers' reported nonadherence to the controller medication of asthma in children in Casablanca (Morocco): Extent and associated factors. AB - OBJECTIVE: Recent statistics show a relatively high prevalence of asthma among Moroccan children and a weak control over their symptoms. To our knowledge, no research has been carried out to document adherence to the controller treatment in this population. This study aims 1) to assess the extent of children's nonadherence to the controller treatment of asthma in an urban region of Morocco as reported by a family caregiver, and 2) to identify the associated factors. METHODS: We conducted a cross-sectional study among caregivers of asthmatic children (2-12 years old) in different health and education facilities of Casablanca-Settat. We administered face-to-face questionnaires incorporating validated instruments (Medication Adherence Rating Scale-Asthma (MARS-A), Beliefs about Medicines Questionnaire (BMQ), Asthma Knowledge Questionnaire). Univariate and multivariate log-binomial regressions evaluating the association between several factors and reported nonadherence were performed (prevalence ratios (PR) and 95% confidence intervals (CI)). RESULTS: Through two public hospitals, three private medical clinics, and one private school, 103 caregivers were recruited. Low adherence to the controller treatment of asthma was reported by 48% of the caregivers (MARS-A <45). In the multivariate model, caregivers with the lowest level of knowledge about asthma were almost three times more likely to report low adherence compared to caregivers with the highest level (PR = 2.93; 95% CI: 1.14 7.52). CONCLUSIONS: This study highlights the finding that low adherence is widespread in this context and also the importance of targeting caregivers' knowledge of asthma for interventions. PMID- 29336703 TI - Establishing Correlates of Protection for Vaccine Development: Considerations for the Respiratory Syncytial Virus Vaccine Field. AB - Correlates of protection (CoPs) can play a significant role in vaccine development by assisting the selection of vaccine candidates for clinical trials, supporting clinical trial design and implementation, and simplifying tests of vaccine modifications. Because of this important role in vaccine development, it is essential that CoPs be defined by well-designed immunogenicity and efficacy studies, with attention paid to benefits and limitations. The respiratory syncytial virus (RSV) field is unique in that a great deal of information about the humoral response is available from basic research and clinical studies. Polyclonal and monoclonal antibodies have been used routinely in the clinic to protect vulnerable infants from infection, providing a wealth of information about correlations between neutralizing antibodies and disease prevention. Considerations for the establishment of future CoPs to support RSV vaccine development in different populations are therefore discussed. PMID- 29336708 TI - Emergency Dispatcher Stroke Recognition: Associations with Downstream Care. AB - OBJECTIVE: As the first point of contact for patients activating emergency medical services (EMS), emergency dispatchers have the earliest opportunity to recognize stroke. We sought to quantify dispatcher stroke recognition and its relationships with EMS stroke recognition and response speed. METHODS: We assembled a cohort of consecutive EMS-transported patients with a dispatcher suspected stroke or a hospital discharge diagnosis of stroke or transient ischemic attack (TIA). Dispatcher sensitivity and positive predictive value (PPV) for stroke recognition were calculated. Multivariable logistic regression analysis was used to determine predictors of dispatcher recognition and relationships between dispatcher recognition and downstream care. RESULTS: During a 12-month period, 601 patients met inclusion criteria. Dispatchers suspected stroke in 229/324 (sensitivity = 70.7% [65.5 to 75.4%]) confirmed stroke/TIA cases and correctly assigned a suspected stroke label in 229/506 cases (PPV = 45.3% [41.0 to 49.6%]). Dispatchers had higher odds of recognizing ischemic strokes (aOR 3.4 [1.4 to 8.5]) and lower odds of recognizing patients with visual deficits (aOR = 0.4 [0.2 to 0.9]) or vomiting (aOR = 0.3 [0.1 to 0.9]). Dispatcher suspected stroke cases received more on-scene stroke screens (79.0% vs. 54.7%, p < 0.0001) and were more often recognized by EMS as strokes (77.7% vs. 57.9%, p = 0.0005). Dispatcher recognition was independently associated with EMS stroke recognition (aOR = 3.8 [1.9 to 7.7]), but not with transportation times, door-to-CT times, or t-PA delivery. CONCLUSIONS: Emergency dispatcher stroke recognition is associated with higher rates of on-scene stroke scale performance and EMS ischemic stroke recognition but not with reduced transport times, door-to-CT times, or t-PA treatment. PMID- 29336707 TI - Kyasanur Forest Disease Prevalence in Western Ghats Proven and Confirmed by Recent Outbreak in Maharashtra, India, 2016. AB - INTRODUCTION: Kyasanur forest disease (KFD) outbreak was confirmed in Dodamarg Taluka, Sindhudurga district (Maharashtra) in India during the year 2016. The rise in suspected KFD cases was reported in January 2016, peaked during March, and then declined gradually from April 2016. The outbreak was thoroughly investigated considering different socio-clinical parameters. METHODS: Total, 488 suspected KFD cases were investigated using KFD specific real-time RT-PCR and anti-KFDV IgM enzyme-linked immunosorbent assay (ELISA). Sero-epidemiological survey was carried out in the affected area using anti-KFDV IgG ELISA. RESULTS: Among suspected KFD cases, high age-specific attack rate (105.1 per 1000 persons) was observed in adults (aged 40-59 years). Out of 488 suspected KFD cases, 130 were laboratory confirmed. Of these, 54 cases were KFDV real-time RT-PCR positive, 66 cases were anti-KFDV IgM ELISA positive and 10 cases were positive by both the assays. Case fatality ratio among laboratory-confirmed KFD cases were 2.3% (3/130). Majority of laboratory-confirmed KFD cases (93.1%) had visited Western Ghats forest in Dodamarg for activities like working in cashew nut farms (79.8%), cashew nut fruit collection (76.6%), collection of firewood (68.5%) and dry leaves/grass (40.3%), etc., before the start of symptoms. Common clinical features included fever (100%), headache (93.1%), weakness (84.6%), and myalgia (83.1%). Hemorrhagic manifestations were observed in nearly one-third of the laboratory-confirmed KFD cases (28.5%). A seroprevalence of (9.7%, 72/745) was recorded in KFD-affected area and two neighboring villages (9.1%, 15/165). Serosurvey conducted in Ker village showed clinical to subclinical ratio of 6:1 in KFD-affected areas. CONCLUSION: This study confirms the outbreak of KFD Sindhudurg district with 130 cases. Detection of anti-KFDV IgG antibodies among the healthy population in KFD-affected area during the KFD outbreak suggested the past exposure of KFD infection. This outbreak investigation has helped health authorities in adopting KFD vaccination strategy for the population at risk. PMID- 29336709 TI - Novel Mutation of the Dystrophin Gene in a Child with Duchenne Muscular Dystrophy. AB - INTRODUCTION: Duchenne muscular dystrophy (DMD) is an X-linked autosomal recessive genetic disorder caused by mutations in DMD gene. Approximately 70% of the mutations are caused by deletions or duplications of DMD exons, while the remaining were minor mutations. CASE REPORT: We present a 5-year-old boy with typical clinical features of DMD. A novel mutation was identified as a c.9358_9359insA of DMD gene by next-generation sequencing. This mutation which was origined from mother, generated a frameshift mutation and resulted in abnormal synthesis of protein polypeptide chains. CONCLUSION: We demonstrated a novel mutation of DMD gene and expanded the spectrum of mutations causing DMD. PMID- 29336710 TI - Consensus Statement- Prehospital Care of Exertional Heat Stroke. AB - Exertional heat stroke (EHS) is one of the most common causes of sudden death in athletes. It also represents a unique medical challenge to the prehospital healthcare provider due to the time sensitive nature of treatment. In cases of EHS, when cooling is delayed, there is a significant increase in organ damage, morbidity, and mortality after 30 minutes, faster than the average EMS transport and ED evaluation window. The purpose of this document is to present a paradigm for prehospital healthcare systems to minimize the risk of morbidity and mortality for EHS patients. With proper planning, EHS can be managed successfully by the prehospital healthcare provider. PMID- 29336712 TI - Reliability and minimal detectable change of thoracoabdominal mobility measurements using photogrammetry. AB - The knowledge about measurement errors of the measuring tool is important before its use, as clinical decisions are going to be made based on its results. Here we investigate intrarater and interrater reliability and the minimal detectable change (MDC) of thoracoabdominal mobility measurements using photogrammetry, considering novice and experienced raters. Thoracoabdominal mobility of 17 healthy participants was assessed; photographs during apnea in maximal inspiration and expiration were used to calculate latero-lateral and anteroposterior diameters of the thorax (at axillary and xiphoid level) and abdomen. One novice and one experienced rater measured the same photographs three times. We found good reliability for the experienced rater (average Intraclass Correlation Coefficient (ICC): 0.98; average MDC: 0.3) and for interrater comparison (average ICC: 0.97; average MDC: 0.35) for all measures, with poorer results for latero-lateral mobility of abdomen. The novice rater presented moderate reliability for latero-lateral mobility of the thorax at axillary level and abdomen (ICC: 0.52 and 0.61; MDC: 1.42 and 2.05, respectively) and good reliability for the other measures (average ICC: 0.81; average MDC: 1.52). The photogrammetric analysis of thoracoabdominal mobility presented itself as a reliable method when used by an experienced professional. However, considering that the measurement of latero-lateral mobility is more subjected to errors, it should be used with caution. The MDC presented should be taken into account as a threshold to be certain that the measure is not under the measurement error due to rater variability. PMID- 29336711 TI - Circulating serum interleukin-6, serum chitinase-3-like protein-1, and plasma vascular endothelial growth factor are not predictive for remission and radiographic progression in patients with early rheumatoid arthritis: post-hoc explorative and validation studies based on the CIMESTRA and OPERA trials. AB - OBJECTIVE: To investigate serum interleukin-6 (IL-6), serum chitinase-3-like protein-1 (YKL-40), and plasma vascular endothelial growth factor (VEGF) as measures of disease activity and predictors of clinical remission and radiographic progression in two early rheumatoid arthritis (RA) randomized controlled trials (RCTs). METHOD: Treatment-naive patients with early RA (< 6 months' duration) and active disease, participating in two investigator-initiated RCTs, were treated according to a predefined treat-to-target algorithm aiming at inflammatory control, using methotrexate (MTX) + cyclosporine versus MTX + placebo (CIMESTRA study, n = 150, 5 year follow-up) or MTX + adalimumab versus MTX + placebo (OPERA study, n = 180, 2 year follow-up). The 28-joint Disease Activity Score (DAS28) and conventional radiography [bilateral hands and feet at baseline, 2 years and 5 years (only CIMESTRA)] were obtained at baseline and during follow-up. Serum IL-6, serum YKL-40, and plasma VEGF were measured in baseline blood samples and during follow-up. Hypotheses regarding the biomarkers' relation with DAS28 and ability to predict clinical remission (DAS28 < 2.6) and radiographic progression (change in total Sharp van der Heijde score >= 2) were generated in CIMESTRA and validated in OPERA, by Spearman's correlation and logistic regression analyses. RESULTS: Baseline IL-6, YKL-40, and VEGF correlated significantly with DAS28 in CIMESTRA (r = 0.50, r = 0.36, r = 0.36, respectively, all p < 0.01) and these results were confirmed in OPERA patients (r = 0.52, p < 0.01; r = 0.18, p = 0.01; r = 0.23, p = 0.002, respectively). None of the biomarkers (absolute values or change) was predictive of clinical remission or radiographic progression at 2 or 5 years in either study. CONCLUSION: Serum IL-6, serum YKL-40, and plasma VEGF were significantly correlated with DAS28 at baseline, but did not have consistent predictive value for clinical remission or radiographic progression in two early RA RCTs. PMID- 29336713 TI - Persistent Pulmonary Hypertension Without Underlying Cardiac Disease as a Presentation of Pulmonary Interstitial Glycogenosis. AB - INTRODUCTION: Pulmonary interstitial glycogenosis (PIG) is an idiopathic lung condition that remains clinically underrecognized despite a growing body of literature. CASE REPORT: We present a case of PIG with pulmonary hypertension without underlying cardiac disease. This patient presented with respiratory distress and spontaneous pneumothorax at 6 months of age. Laboratory and imaging investigations demonstrated nonspecific features, but refractory pulmonary hypertension was confirmed on cardiac catheterization. Lung tissue histopathology showed glycogen positive staining of the interstitial cells, consistent with PIG. CONCLUSION: This unique case demonstrates that pulmonary hypertension can be seen in the setting of PIG without associated cardiac anomalies, and persists despite treatment in an otherwise self-limited condition. PMID- 29336714 TI - Urinary Retention and Medication Utilization on a Palliative Care Unit: A Retrospective Observational Study. AB - Urinary retention is a common problem at end-of-life that may be a result of medications used to control other symptoms. To determine whether use of retention causing drugs was associated with catheterization for urinary retention among palliative care unit (PCU) patients, the authors reviewed charts of 91 consecutively admitted patients to a hospital-based PCU. Utilization of eight classes of retention-causing medications (opioids, antidopaminergics, benzodiazepines, anticholinergics, antidepressants, calcium channel antagonists, nonsteroidal anti-inflammatory drugs [NSAIDs], and H1 histamine antagonists) was compared between those catheterized for urinary retention (n = 34) and those never catheterized (n = 31). All patients used medication from more than one class of retention-causing medication. A statistically significant association with urinary retention occurred for antidopaminergic medications, but not other drug classes. The total number of classes of retention-causing medications was not associated with catheterization. These findings question whether urinary retention need hinder medication use for symptom management at end-of-life. Tapering of antidopaminergic medications, compared with other drug classes studied, may be more likely to resolve retention. PMID- 29336715 TI - Chronic innate immune signaling results in ubiquitination of splicing machinery. PMID- 29336716 TI - Reactive oxygen species, nitric oxide production and antioxidant gene expression during development of aerenchyma formation in wheat. AB - In response to hypoxia, plant roots produce very high levels of nitric oxide. Recently, it was demonstrated that NO and ethylene both are essential for development of aerenchyma in wheat roots under hypoxia. Increased NO under hypoxia correlated with induction of NADPH oxidase gene expression, ROS production and lipid peroxidation in cortical cells. Tyrosine nitration was prominent in cells developing aerenchyma suggesting that NO and ROS play a key role in development of aerenchyma. However, the role of antioxidant genes during development of aerenchyma is not known, therefore, we checked gene expression of various antioxidants such as SOD1, AOX1A, APX and MnSOD at different time points after hypoxia treatment and found that expression of these genes elevated in 2 h but downregulated in 24 h where development of aerenchyma is prominent. Further, we found that plants growing under ammonium nutrition displayed delayed aerenchyma development. Taken together, new insights presented in this short communication highlighted additional regulatory role of antioxidants gene expression during aerenchyma development. PMID- 29336717 TI - PD1 protein expression in tumor infiltrated lymphocytes rather than PDL1 in tumor cells predicts survival in triple-negative breast cancer. AB - To determine PD1/PDL1 expression status in triple-negative breast cancer (TNBC) at both protein and mRNA levels, and to analyze the relationship between their expression and clinical parameters of the TNBC patients. Immunohistochemistry and RNAscope were used to semi quantitively evaluate PD1/PDL1 protein and mRNA expression in 195 TNBC cases on tissue microarrays. Tumor infiltrating lymphocyte (TILs) abundance was assessed using hematoxylin-eosin staining. Both tumor cells and TILs expressed PDL1. PDL1 protein and mRNA positivity was 6.7% and 74.4% respectively in tumor cells, and 31.3% and 50.9% respectively in TILs. PDL1 protein and mRNA expressions had no significant association with patient prognosis. PD1 protein was only detected in TILs (70.3% positivity). PD1 protein expression was significantly related to PDL1 expression, higher TIL abundance, Ki 67 index, basal-like subtypes, and distant metastasis. Furthermore, it was significantly associated with longer disease free survival (P<0.001) and overall survival (P = 0.004). There was no significant association between PD1 mRNA expression and clinicopathological characteristics. PD1/PDL1 protein and mRNA expressions were inconsistent (kappa = 0.705 and 0.061, respectively). PD1 protein expression in TILs, but not PDL1 in tumor cells, was a favorable prognostic factor in TNBC. PD1/PDL1 mRNA and protein expressions were inconsistent. PMID- 29336718 TI - Effect of Irvingia gabonensis on Metabolic Syndrome, Insulin Sensitivity, and Insulin Secretion. AB - The aim of this study was to evaluate the effect of Irvingia gabonensis on metabolic syndrome (MetS), insulin sensitivity, and insulin secretion. A randomized, double-blind, placebo-controlled clinical trial was performed in 24 patients with MetS in accordance with the International Diabetes Federation criteria. Twelve patients received I. gabonensis (150 mg) twice a day during 90 days, and 12 patients received placebo. Glucose and insulin concentrations were measured during a 2-h oral glucose tolerance test. Also, lipid profile, creatinine, uric acid, and hepatic enzymes were determined. The area under the curve (AUC) of glucose and insulin, total insulin secretion, first phase of insulin secretion, and insulin sensitivity were calculated. Data were tested using non-parametric tests. The Ethics Committee approved the protocol. After I. gabonensis administration, significant decreases in waist circumference (WC) (94.0 +/- 8.0 vs. 91.0 +/- 8.2 cm, P < .01), glucose 90' (10.0 +/- 2.5 vs. 8.6 +/ 2.7 mmol/L, P < .05), glucose 120' (8.8 +/- 2.4 vs. 7.6 +/- 2.7 mmol/L, P < .05), triglycerides (2.5 +/- 1.2 vs. 2.0 +/- 1.1 mmol/L, P < .05), very low density lipoproteins (VLDL) (0.5 +/- 0.2 vs. 0.4 +/- 0.2 mmol/L, P < .05), and AUC of glucose (694 +/- 142 vs. 629 +/- 172 mmol/L/min, P < .05) were found. Seven patients (58.3%) of the I. gabonensis group showed remission of MetS and two patients (16.7%) of the placebo group (P = .045). I. gabonensis lead to remission of MetS in 58.3% of the patients and significantly decreased WC, glucose 90', glucose 120', triglycerides, VLDL, and AUC of glucose. PMID- 29336719 TI - Bidirectional Relationships between Alcohol-Specific Parental Socialization Behaviors and Adolescent Alcohol Misuse. AB - BACKGROUND: Although numerous studies have examined parental influence on adolescent alcohol misuse, few have examined how adolescents impact parental behavior or the reciprocal nature of parent-adolescent behavior relative to alcohol misuse. OBJECTIVES: This study assessed bidirectional relationships between adolescent alcohol misuse and three alcohol-specific parenting behaviors (substance-specific monitoring, permissive communication messages about alcohol, and cautionary communication messages about alcohol). METHODS: Data were from 1,645 parent-adolescent dyads drawn from a longitudinal study spanning grades 6 10. A multivariate latent curve model with structured residuals was used to test study hypotheses. RESULTS: One marginally significant result emerged (increased alcohol misuse leads to greater substance-specific monitoring) after accounting for underlying developmental processes. CONCLUSIONS: Though practical implications are limited based on the results of the study, further directions for research regarding study design and measurement are provided to more fully examine dynamic processes between parents and adolescents relative to alcohol use. PMID- 29336720 TI - A novel 4-phenyl amino thiourea derivative designed for real-time ratiometric colorimetric detection of toxic Pb2. AB - The objective of this study was to develop a ratiometric and colorimetric organic sensor for Pb2+ detection in environmental samples. A new probe 4-phenyl amino thiourea (PAT) was designed and synthesized using hydrazine hydrate and phenyl isothiocyanate as raw materials. After its structure was characterized and confirmed, its UV-vis spectral property was investigated in detail. PAT possesses a specifically real-time, ratiometric and colorimetric response to Pb2+ in dimethyl formamide (DMF)/H2O (v/v = 9:1, pH = 7.0) within 18.0 s. There was little interference in the presence of some other common metal ions, such as Fe3+, Cd2+, Zn2+, Mg2+, Cr3+, Ca2+, Ba2+, Sn2+, Na+, Mn2+, Hg2+, and Pb2+. Under the optimized conditions (DMF/H2O with v/v of 9:1, cPAT = 1.0 * 10-3 mol.L-1, pH = 7.0), the present sensor PAT was successfully applied for Pb2+ determination in environmental water samples with satisfied recoveries (83.0%-106.0%) and analytical precision (<=7.2%). The recognition mechanism was confirmed to form a stable 1:1 six-member ring complex between the target dye and Pb2+ with a coordination constant of 4.96 * 104. PMID- 29336721 TI - Using hydrogen peroxide to prevent antibody disulfide bond reduction during manufacturing process. AB - During large-scale monoclonal antibody manufacturing, disulfide bond reduction of antibodies, which results in generation of low molecule weight species, is occasionally observed. When this happens, the drug substance does not meet specifications. Many investigations have been conducted across the biopharmaceutical industry to identify the root causes, and multiple strategies have been proposed to mitigate the problem. The reduction is correlated with the release of cellular reducing components and depletion of dissolved oxygen before, during, and after harvest. Consequently, these factors can lead to disulfide reduction over long-duration storage at room temperature prior to Protein A chromatography. Several strategies have been developed to minimize antibody reduction, including chemical inhibition of reducing components, maintaining aeration before and after harvest, and chilling clarified harvest during holding. Here, we explore the use of hydrogen peroxide in clarified harvest bulk or cell culture fluid as a strategy to prevent disulfide reduction. A lab-scale study was performed to demonstrate the effectiveness of hydrogen peroxide in preventing antibody reduction using multiple IgG molecules. Studies were done to define the optimal concentration of hydrogen peroxide needed to avoid unnecessary oxidization of the antibody products. We show that adding a controlled amount of hydrogen peroxide does not change product quality attributes of the protein. Since hydrogen peroxide is soluble in aqueous solutions and decomposes into water and oxygen, there is no additional burden involved in removing it during the downstream purification steps. Due to its ease of use and minimal product impact, we demonstrate that hydrogen peroxide treatment is a powerful, simple tool to quench reducing potential by simply mixing it with harvested cell culture fluid. PMID- 29336722 TI - Perceptions on technology for volunteer respite care for bedridden elders in Chile. AB - PURPOSE: Informal caregivers of bedridden elders need a respite. One form of obtaining a respite is through volunteers who are contacted by means of information and communication technology (ICT). METHOD: A qualitative study was carried out in a low-income district in Santiago, Chile, to learn about how caregivers of bedridden elders perceive the possibility of using ICT to access this respite. In-depth interviews were carried out and transcribed verbatim, then analysed using open coding. Results: The results reveal that caregivers are willing to receive a volunteer in their home and use ICT to communicate with them, although a discrepancy exists between the use of devices connected to the Internet and feature phones. Conclusion: This study concludes that informal caregivers of bedridden elders have a favourable disposition towards accessing a respite system by means of ICT based on a peer-to-peer economy. PMID- 29336723 TI - Chemical characterization and evaluation of the antioxidants in Chaenomeles fruits by an improved HPLC-TOF/MS coupled to an on-line DPPH-HPLC method. AB - An improved method based on HPLC-TOF/MS was developed to catalog the antioxidants in five species of Chaenomeles (Mugua). Forty-four fractions from the Mugua extracts show appreciable levels of antioxidative activity in scavenging the stable free-radical 2,2-diphenyl-1-picrylhydrazyl and the hydroxyl radicals. Twelve major antioxidant's chemical structures are identified. Antioxidant activities differ between species, but intra-species level of antioxidants, regardless of their ripeness, are similar. C. sinensis has the highest antioxidant level. A rigorous quality control procedure was implemented to ensure accuracy of antioxidant quantification. This improved procedure can be used for rapid discovery of antioxidants in other plant extracts. PMID- 29336724 TI - Explicit Awareness does not Modulate Retrograde Interference Effects in Sequence Learning. AB - Motor sequences are learned explicitly or implicitly based on conscious awareness of the sequence. Interference happens when two sequences are learned successively. Here, we aimed to determine whether implicit and explicit sequence learning are affected differently by retrograde interference. Young healthy volunteers participated in either a control or interference group and either an explicit or implicit learning condition. We used a modified serial reaction time task to induce sequence learning and control awareness. Results showed that the overall amount of sequence learning was greater in the explicit condition compared to implicit. However, sequence learning was equally susceptible to retrograde interference under either condition. We conclude that although susceptible to interference, explicit awareness improves overall sequence learning compared to implicit conditions. PMID- 29336725 TI - Adaptability of mitosporic stage in Sphaerodes mycoparasitica towards its mycoparasitic-polyphagous lifestyle. AB - Sphaerodes mycoparasitica Vuj. is a Fusarium-specific mycoparasite. Some recent discoveries recognize its biotrophic polyphagous lifestyle as an interesting biocontrol property against a broad spectrum of mycotoxigenic Fusarium hosts. Secondary metabolites such as mycotoxins produced by Fusarium spp. may play an important role in the signaling process, allowing an early mycoparasite-host recognition. A multiple-paper-disc assay has been conducted to test S. mycoparasitica hyphal adaptability to filtrates of 12 Fusarium spp. This study shows that shifts of adapted and nonadapted hyphal migration towards different Fusarium-host filtrates may partly explain S. mycoparasitica polyphagous lifestyle, and its adaptability depending on host preference or compatibility. In terms of host compatibility, the current findings suggest that S. mycoparasitica tends to prefer native Fusarium hosts more related to its origin and propose that the mycoparasite could possess diphasic interactions such as biotrophic attraction and antagonistic-inhibition relationships based on relative radial growth. This implies that the mycoparasite may use a group of mycotoxins produced by specific Fusarium spp. as an adaptive selective mechanism that facilitates a parasite-host recognition and further successful mycoparasitism. In particular, relative polarity or hydrophilicity/hydrophobicity of mycotoxins may be related to solubility and absorption properties in hyphae of the mycoparasite. Taken together, the studies of host compatibility and adaptability depending on host filtrates will aid in understanding complex mechanisms of S. mycoparasitica, as a promising model organism for a specific biotrophic mycoparasite to enhance and improve biocontrol efficacy against Fusaria. PMID- 29336726 TI - Parallel dual-task processing and task-shielding in older and younger adults: Behavioral and diffusion model results. AB - : Background/Study Context: The study investigated the Backward Crosstalk Effect (BCE) in dual-task situations, that is, the observation that Task 2 characteristics can even influence Task 1 processing. This observation suggests that the tasks are processed in parallel. Besides determining the existence of a BCE in a group of older adults, the size of the BCE was compared to that in a group of younger adults. Importantly, recent studies yielded unclear results. METHODS: Twenty-four younger and older adults (19-27 and 58-71 years of age, respectively) performed a dual-task experiment, where Task 1 required a left/right manual response and Task 2 required a left/right foot response. The BCE manifests in shorter Task 1 RTs if both responses are given on the same side (compatible) compared to when they are given on different sides (incompatible). Data were analyzed by Analyses of Variance and diffusion modeling. RESULTS: Both age groups clearly exhibited a BCE, and the BCEs were of the same size. Further, for both age groups, the size of the BCE was similarly modulated by the previous trial's compatibility status. Diffusion model analyses attribute the BCE to an increased drift rate in compatible compared to incompatible trials, and also revealed no age group differences in any of the analyzed parameters. CONCLUSION: The results point to an aspect of cognition that seems not to show age-related deteriorations, similar to, for example, n-2 repetition costs in task-switching situations. Certain response selection-related aspects of task processing are processed in parallel to the same degree in younger and older adults, and both age groups are similarly able to shield Task 1 processing from interfering Task 2 processing in a dual-task situation. PMID- 29336728 TI - The efficacy of cognitive interventions for improving cognitive performance and academic achievement in children after cancer treatment: A systematic review. AB - Academic decline has been reported in children after cancer treatment, believed to be as a result of cognitive impairment. Cognitive interventions may improve both the present and future outcomes for children after cancer treatment by improving cognitive and/or academic performance. This review aimed to examine the efficacy of cognitive interventions in children who had received cancer treatment. A systematic search of the PsycInfo and PubMed databases was conducted in May 2015 to identify studies in which cognitive interventions were conducted with children who had undergone cancer treatment and were under the age of 21. Cognitive or academic outcomes needed to be reported pre- and post-intervention to meet the inclusion criteria. Eleven studies were included in this review. Computerized and home-based cognitive interventions were found to be most successful at improving cognitive skills. However, few cognitive interventions assessed academic achievement specifically. Future cognitive intervention research studies should include measures of academic achievement outcomes, because academic achievement and cognitive outcomes may differ. Future research regarding the effectiveness of early, home-based and computerized intervention is warranted. PMID- 29336727 TI - Providing services to trafficking survivors: Understanding practices across the globe. AB - PURPOSE: Human trafficking is a global issue, with survivors representing all genders, ages, races, ethnicities, religions, and countries. However, little research exists that identifies effective practices in supporting survivors of human trafficking. The research that does exist is Western-centric. To fill this gap in the literature, the goal of this research was to understand practices used throughout the globe with adult human trafficking survivors. METHODS: A qualitative approach was utilized. Providers from 26 countries, across six different continents, were interviewed to allow for a comprehensive and multi faceted understanding of practices in working with survivors. RESULTS: Participants identified utilizing an empowerment-based, survivor, and human life centered approach to working with survivors, emphasized the importance of engaging in community level interventions, and highlighted the importance of government recognition of human trafficking. DISCUSSION: Findings provide information from the perspective of advocates on best practices in the field that can be used by agencies to enhance human trafficking programming. PMID- 29336729 TI - The victim-offender overlap in late adulthood. AB - This study contributes to the general knowledge of the victim-offender overlap by determining whether the phenomenon exists among older adults and whether known correlates of crime and victimization explain the relationship. Cross-sectional survey data from telephone interviews conducted with individuals 60 years and older (N = 2,000) residing in Arizona and Florida are used to estimate confirmatory factor models for both victimization and criminal offending. The results from a series of multivariate regression models show that victimization is associated with criminal offending. While factors such as low self-control, depression, and spending time in commercial drinking establishments partially attenuate the victimization-crime link, the statistically significant relationship persists in a multivariate context. Further testing indicates that the observed findings are robust across measurement and modeling strategies. Coupled with prior research, the results support the argument that the victim offender overlap exists (and is difficult to explain) over the life course. PMID- 29336730 TI - Motor and Visual-spatial Cognition Development in Primary School-Aged Children in Cameroon and Germany. AB - It was the main goal of this study to investigate the motor and visual-spatial development in primary school-aged children in Cameroon and Germany. Thirty-four children from each country completed a motor test and a mental rotation test. It was found that children in Cameroon showed a better motor ability (better overall gross motor score and also on most single items) than children in Germany did. This can be explained by the early motor stimulation in infancy in Cameroon. Concerning mental rotation performance, Cameroonian children perform below chance level. A positive correlation between the overall motor ability and mental rotation performance could only be analyzed and conducted in the German sample. Therefore, this study emphasizes the need for the development of culture-fair cognitive tests. PMID- 29336731 TI - Lead induces DNA damage and alteration of ALAD and antioxidant genes mRNA expression in construction site workers. AB - Oxidative stress and DNA damage are considered as possible mechanisms involved in lead toxicity. To test this hypothesis, DNA damage and expression variations of aminolevulinic acid dehydratase (ALAD), superoxide dismutase 2 (SOD2), and 8 oxoguanine DNA glycosylase 2a (OGG1-2a) genes was studied in a cohort of 100 exposed workers and 100 controls with comet assay and real-time polymerse chain reaction (PCR). Results indicated that increased number of comets was observed in exposed workers versus controls (p < 0.001). After qPCR analysis, significant down-regulation in ALAD (p < 0.0001), SOD2 (p < 0.0001), and OGG1-2a (p < 0.0001) level was observed in exposed workers versus controls. Additionally, a positive spearmen correlation was observed between ALAD versus SOD2 (r = 0.402**, p < 0.001), ALAD versus OGG1-2a (r = 0.235*, p < 0.05), and SOD2 versus OGG1-2a (r = 0.292*, p < 0.05). This study showed that lead exposure induces DNA damage, which is accompanied by an elevated intensity of oxidative stress and expression variation of lead-related gene. PMID- 29336732 TI - "Some University Lecturers Wear Gay Pride T-shirts. Get Over It!": Denials of Homophobia and the Reproduction of Heteronormativity in Responses to a Gay-Themed T-shirt. AB - This article explores an incident involving a gay pride T-shirt, printed with the slogan "Some people are gay. Get over it!," that I wore during a university lecture, and students' predominantly negative responses to it. I use the lens of modern prejudice research, particularly discursive psychological approaches to modern prejudice, to interpret the students' responses to a qualitative survey about their views on the T-shirt. They related strong feelings of upset and anger, particularly because I had-in their view-implicitly accused them of being homophobic. They passionately refused this supposed accusation on the grounds that "everything's equal now" and "gay people are no different from us." I argue that the ideological themes of cultural heterosexism and compulsory heterosexuality provide a productive framework for making sense of the students' responses, as they sanction a rational neoliberal subject who is both non homophobic and inculcated into heteronormativity. PMID- 29336733 TI - Impaired Visuospatial Short-Term Memory in Children with ADHD. AB - Previous studies provide clear evidence that visuospatial memory performance in children with attention-deficit/hyperactivity disorder (ADHD) is significantly lower than in typically developing children. In the present study, we investigated a major cause of their low performance using a spatial span test. Possibly, inattention resulting from lack of motivation or interest causes their low performance so that they do not correctly encode targets to be remembered. On the other hand, a deficit in temporary maintenance per se may cause their low performance; that is, their inefficient use of rehearsal during a retention interval may lead to memory traces' fast decay. Results in this study indicated that children with ADHD could sustain attention during the encoding phase. Furthermore, their performance at delayed recall was significantly lower than immediate recall, but delayed recall did not affect typically developing children's performance. These results provide evidence for the likelihood that a factor causing children with ADHD difficulty in temporarily maintaining visuospatial information is fast decay of memory traces as a result of inefficient use of rehearsal, not inattention in the encoding phase. PMID- 29336734 TI - The relationship between women's characteristics and herbal medicines use during pregnancy. AB - The use of herbal medicines (HM) has been increasing worldwide. This cross sectional study investigated the prevalence of and characteristics related to use of HM among 320 pregnant women. Participants were admitted to Mazandaran-based hospitals' postnatal wards from March to June 2015. Data were collected via a self-report questionnaire, including herbs used during pregnancy and demographic, socioeconomic and pregnancy-related factors. Nearly half (48.4%) of the women reported taking one or more HM during pregnancy. The most frequently used herbs were Sour orange (30.97%), Peppermint (19.81%) and Borage (19.46%). Most women (29.20%) were advised by their relatives to take these and did not disclose this use to their health care providers (50%) because they perceived their use as safe (39.7%). The use of herbs was greater among pregnant women with upper secondary level education, living in their own house and from higher socioeconomic classes. Most of the information sources for women were informal, indicating they were not knowledgeable about the herbs' safety and efficacy during pregnancy. Health care providers should be informed about HM and question pregnant women about their use of HM during pregnancy so that they can advise them about potential side effects and drug interactions. PMID- 29336735 TI - Effect of low-cost resistance training on lower-limb strength and balance in institutionalized seniors. AB - : Background/Study Context: Given the rapid increase in the aging population worldwide, fall prevention is of utmost importance. It is essential to establish an efficient, simple, safe, and low-cost intervention method for reducing the risk of falls. This study examined the effect of 12 weeks of progressive elastic resistance training on lower-limb muscle strength and balance in seniors living in the Rumah Seri Kenangan, social welfare home in Cheras, Malaysia. METHODS: A total of 51 subjects qualified to take part in this quasi-experimental study. They were assigned to either the resistance exercise group (n = 26) or control group (n = 25). The mean age of the 45 participants who completed the program was 70.7 (SD = 6.6). The exercise group met twice per week and performing one to three sets of 8 to 10 repetitions for each of nine lower-limb elastic resistance exercises. All exercises were conducted at low to moderate intensities in sitting or standing positions. The subjects were tested at baseline and 6 and 12 weeks into the program. RESULTS: The results showed statistically significant improvements in lower-limb muscle strength as measured by five times sit-to-stand test (%Delta = 22.6) and dynamic balance quantified by the timed up-and-go test (%Delta = 18.7), four-square step test (%Delta = 14.67), and step test for the right (%Delta = 18.36) and left (%Delta = 18.80) legs. No significant changes were observed in static balance as measured using the tandem stand test (%Delta = 3.25), and one-leg stand test with eyes opened (%Delta = 9.58) and eyes closed (%Delta = -0.61) after completion of the program. CONCLUSION: The findings support the feasibility and efficacy of a simple and inexpensive resistance training program to improve lower-limb muscle strength and dynamic balance among the institutionalized older adults. PMID- 29336736 TI - The Emergence and Persistence of Queerness: Conversing Through Visual Culture Within a Generation. AB - In this article, the authors explore the work of becoming queer within the Millennial generation. Collaborative in nature, their investigation turns to three key popular-culture texts of the 1990s-Will & Grace, Rent, and MTV's Spring Break-that were central to their then-emerging sense of self. Staged as an intragenerational conversation, the authors look to create space to unpack the connections, anecdotal by design, between popular texts and changing ideas of queer identity and community. Since neither author grew up within the confines of a gay ghetto-Boystown of Chicago, the Castro of San Francisco, the East Village of New York City-where they may have encountered and been enamored by the avant garde queer subcultures so often praised in queer scholarship (for important reasons), they turn instead to experiences with popular culture that opened up lessons in becoming gay, in rural and Midwestern locales where queerness operated and emerged differently. PMID- 29336737 TI - Handwashing Improvement Project-A Resident Run Success. PMID- 29336738 TI - Concomitant Fecal Impaction and Perforated Appendicitis in an Autistic Patient. PMID- 29336739 TI - Nonuterine Lipoleiomyoma. PMID- 29336740 TI - Primary Synchronous Bilateral Angiosarcoma of the Breast. PMID- 29336741 TI - Malignant Phyllodes: A Presentation of Two Patients with a Rare Disease. PMID- 29336742 TI - Small Bowel Obstruction from a 3-cm Gallstone in the Setting of Child-Pugh C Liver Cirrhosis. PMID- 29336743 TI - Multiple Mycotic Visceral Artery Aneurysms. PMID- 29336744 TI - Personal Watercraft Related Injuries-16-Year Experience from a Level I Trauma Center. PMID- 29336745 TI - Redo Gracilis Muscle Transposition for Recurrent Complex Pouch-Vaginal Fistula: A Feasible and Effective Pouch Salvage Surgical Procedure. PMID- 29336746 TI - Abdominal Splenosis Mimicking Carcinomatosis in a Patient with Acute Appendicitis. PMID- 29336747 TI - Traumatic Arteriovesical Fistula from the External Iliac Artery after Gunshot Wound to the Pelvis. PMID- 29336748 TI - An Update on the Current Management of Perforated Diverticulitis. AB - The management of perforated diverticulitis is a challenging aspect of general surgery. The prevalence of colonic diverticular disease has increased over the last decade and will continue to increase as the baby boomers add to the elderly population. Improvements in diagnostic imaging modalities, efforts to maintain intestinal continuity, and percutaneous drainage procedures now result in several alternatives when selecting a management strategy for complicated presentations. Specifically, laparoscopic lavage and resection with primary anastomosis have emerged as options for treatment of Hinchey III and IV diverticulitis in place of diversion in the appropriately selected patient. Percutaneous drainage of Hinchey II diverticulitis in centers equipped with interventional radiology provides another minimally invasive adjunct. The objective of this paper is to provide an update on the current management of perforated diverticulitis, with a focus on the advantages and disadvantages of the surgical options for the treatment of Hinchey III and IV diverticulitis. PMID- 29336749 TI - Heroic Measures for an American Hero: Attempting to Save the Life of General Douglas MacArthur. AB - General Douglas MacArthur was a towering public figure on an international stage for the first half of the 20th century. He was healthy throughout his life but developed a series of medical problems when he entered his 80s. This article reviews the General's medical care during two separate life-threatening medical crises that required surgical intervention. The first episode occurred in 1960 when MacArthur presented with renal failure due to an obstructed prostate. Four years later after his 84th birthday, MacArthur developed bile duct obstruction from common duct stones. He underwent an uncomplicated cholecystectomy and common duct exploration but developed variceal bleeding requiring an emergent splenorenal shunt. His terminal event was precipitated by strangulated bowel in long-ignored very large inguinal hernias. MacArthur died, despite state-of-the art surgical intervention, due to renal failure and hepatic coma. PMID- 29336750 TI - Percutaneous versus Cut-Down Technique for Indwelling Port Placement. AB - The superiority of surgical cut-down of the cephalic vein versus percutaneous catheterization of the subclavian vein for the insertion of totally implantable venous access devices (TIVADs) is debated. To compare the safety and efficacy of surgical cut-down versus percutaneous placement of TIVADs. This is a single institution retrospective cohort study of oncologic patients who had TIVADs implanted by 14 surgeons. Primary outcomes were inability to place TIVAD by the primary approach and postoperative complications within 30 days. Multivariate analysis was performed by logistic regression. Secondary outcomes included operative time. Two hundred and forty-seven (55.9%) percutaneous and 195 (44.1%) cephalic cut-down patients were identified. The 30-day complication rate was 5.2 per cent: 14 patients (5.7%) in the percutaneous and nine (4.6%) in the cut-down group. The technique was not a significant predictor of having a 30-day complication (odds ratio = 0.820; 95% confidence interval 0.342-1.879). Implantation failure was observed in 16 percutaneous patients (6.5%) and 28 cut down patients (14.4%) (adjusted odds ratio for cephalic vs cut-down = 2.387; 95% confidence interval 1.275-4.606). The median operative time for percutaneous patients was 46 minutes (interquartile range = 35, 59) versus 37.5 minutes (interquartile range = 30, 49) for cut-down patients(P < 0.0001). Both the percutaneous and cut-down technique are safe and effective for TIVAD implantation. Operative times were shorter and the odds of implantation failure higher for cephalic cut-down. As implantation failure is common, surgeons should familiarize themselves with both techniques. PMID- 29336751 TI - Laparoscopic Exploration Can Salvage Recurrent Common Bile Duct Stone after Cholecystectomy. AB - Conventionally, patients suffered from recurrent common bile duct (CBD) stone after cholecystectomy are suggested to be treated with endoscopic retrograde cholangiopancreaticography. This study was designed to explore the feasibility of laparoscopic common bile duct exploration (LCBDE) as a salvage procedure for recurrent CBD calculi after cholecystectomy. A retrospective review was conducted of data from 65 patients who underwent LCBDE for recurrent CBD calculi after cholecystectomy from January 2011 to July 2015. LCBDE was successfully carried out in 61 cases, with a successful rate of 93.8 per cent. Three cases required open conversion because of serious abdominal adhesion, and one case for intraoperative bleeding. Postoperative bile leakage occurred in two cases, and bile peritonitis developed in one case; all these three patients with complications were fully cured by conservative treatment. A postoperative retained CBD stone was found in one patient, which was extracted with endoscopic sphincterotomy. Furthermore, it was found that the mean operative time and length of postoperative hospital stay were much shorter in primary closure group (n = 49) than in T-tube drainage group (n = 12), and the hospital expense was also lower in primary closure group. We suggest that LCBDE could be a novel approach as a salvage procedure for the recurrent CBD stone after cholecystectomy, and we prefer to intraoperative primary closure of CBD if possible. PMID- 29336752 TI - External Validation of Velazquez-Gomez Severity Score Index and ATLAS Scores and the Identification of Risk Factors Associated with Mortality in Clostridium difficile Infections. AB - Treatment guidelines for Clostridium difficile infection (CDI) are limited by a lack of widely accepted clinical prediction tools (CPTs). Two published CPTs, the Velazquez-Gomez Severity Score Index (VGSSI) and ATLAS scores, were evaluated, and variables showing the greatest correlation with mortality in patients with CDI were identified to further develop an objective, mortality-based CPT. A retrospective review of the charts of 271 hospitalized patients with CDI was performed. VGSSI and ATLAS scores were assigned. Means and correlations of these scores with mortality were evaluated. Multivariate logistic regression analysis was performed on 32 known potential mortality predictor variables. Mortality was overall strongly associated with VGSSI and ATLAS scores with poor correlation within the intermediate ranges. Mean scores for nonsurvivors indicated poor calibration. The variables most associated with mortality were Age, vasopressors, steroids, creatinine level, and albumin. Although both CPTs revealed the ability to discriminate patients at greater risk for mortality, precision and overall calibration were lacking. Five variables were identified which had the greatest correlation with mortality. Utilization of these variables to enhance or modify the existing CPTs is suggested as the next step in the development of a useful and accurate mortality-based CPT for the treatment of CDI. PMID- 29336753 TI - Randomized Clinical Trial Comparing Low Density versus High Density Meshes in Patients with Bilateral Inguinal Hernia. AB - We present a randomized clinical trial to compare postoperative pain, complications, feeling of a foreign body, and recurrence between heavyweight and lightweight meshes in patients with bilateral groin hernia. Sixty-seven patients with bilateral hernia were included in our study. In each patient, the side of the lightweight mesh was decided by random numbers table. Pain score was measured by visual analogue scale, on 1st, 3rd, 5th, and 7th postoperative day, and one year after the surgery. There were no statistically significative differences between both meshes in postoperative complications. About differences of pain average, there were statistically significant differences only on the 1st postoperative day (P <0.01) and the 7th postoperative day (P <0.05). In the review after a year, there were no statistically significative differences in any parameter. In our study, we did not find statistically significative differences between lightweight and heavyweight meshes in postoperative pain, complications, feeling of a foreign body, and recurrence, except pain on 1st and 7th postoperative day. PMID- 29336754 TI - Predictors and Outcomes of Nondiagnostic Ultrasound for Acute Appendicitis in Children. AB - Ultrasound assessments of children with possible acute appendicitis (AA) are often nondiagnostic. We aimed to identify the predictors of nondiagnostic ultrasound and to investigate the outcomes. A retrospective review was conducted on children aged 4 to 17 years evaluated in 2013 for AA with ultrasound at a tertiary hospital pediatric emergency department. Demographics, clinical data, and outcomes were analyzed. Of 528 children, 194 (36.7%) had diagnostic ultrasounds and 334 (63.3%) had nondiagnostic ultrasounds. Nondiagnostic ultrasounds were more common after-hours (7 pm-7 am weekdays and on weekends, 70.7%) than during business hours (7 am-7 pm weekdays; 29.3%). After-hours timing and female sex were identified as independent predictors of nondiagnostic ultrasounds (P < 0.05 for both). AA was diagnosed in 35 children with a nondiagnostic ultrasound (10.5%; P < 0.05). No child who underwent a nondiagnostic ultrasound was found to have AA with laboratory values of white blood cell < 11 * 103/uL and c-reactive protein (CRP) < 5 mg/dL. Children with nondiagnostic ultrasounds have a low likelihood of AA if white blood cell < 11 and CRP < 5. We propose a management algorithm that we hope will help reduce admissions and decrease the use of computed tomography scans. PMID- 29336755 TI - Incorporation of Anterior Lumbosacral Spine Exposure into a General Surgical Practice. AB - Many spine surgeons enlist the aid of an "access surgeon" to provide anterior exposure of the lumbosacral spine. We proposed that a single, community hospital general surgery practice can successfully develop an anterior spine exposure program with acceptable clinical outcomes. One hundred and forty-three consecutive anterior exposures were performed between 2008 and 2014. Morbidity and 30-day mortality were recorded. The effects of American Society of Anesthesiologists Physical Status classification (ASA class) and number of levels exposed on length of stay (LOS) and estimated blood loss (EBL) was reported. The growth of the program during this period was also evaluated. During the six-year period, there were nine (6.3%) major complications and 17 (11.9%) minor complications with no 30-day mortality. The mean LOS was similar for one-level and two-level exposures (3.8 days). Mean LOS was higher in ASA III patients (4.4 days) than ASA I (2.9 days) or ASA II (3.2 days). Mean EBL for one-level exposures (336.3 mL) was not significantly different than EBL for two-level exposures (425.9 mL). EBLs in ASA class III patients were greater than in class I and class II patients. The program began in July of 2008 with a single spine surgeon and one operation that year. A high of 54 procedures, with seven different spine surgeons, was recorded in 2013. A single, community hospital general surgery practice can successfully develop an anterior approach to spine exposure program with acceptable clinical outcomes and with sustained growth of the program. PMID- 29336756 TI - Risk Factors for Elevated Preoperative Alkaline Phosphatase in Patients with Refractory Secondary Hyperparathyroidism. AB - Elevated preoperative levels of alkaline phosphatase (ALP) in patients with refractory secondary hyperparathyroidism are correlated with postoperative hypocalcemia and mortality. The aim of this study was to identify the predictors of preoperative ALP in patients with secondary hyperparathyroidism. From April 2012 to December 2015, 220 patients with refractory secondary hyperparathyroidism undergoing total parathyroidectomy without autotransplantation were reviewed. A total of 164 patients presented with elevated preoperative ALP. Univariate analysis showed that patients with elevated ALP were significantly younger. The elevated ALP group had significantly higher levels of preoperative parathyroid hormone (PTH), lower preoperative serum calcium, higher preoperative phosphorus, lower postoperative hypocalcemia, and a longer hospital stay. Logistic regression analysis showed that elevated preoperative PTH was a significant independent risk factor for elevated preoperative ALP (P = 0.000), and its value of 1624 pg/mL was the optimal cutoff point. Factors predictive of elevated preoperative ALP in patients with secondary hyperparathyroidism include preoperative PTH. Earlier surgery, aggressive calcium supplementation, and more careful or aggressive postoperative care for high-risk patients are needed. PMID- 29336757 TI - Radiofrequency Thermal Ablation Heat Energy Transfer in an Ex-Vivo Model. AB - Little work has been done to consider the temperature changes and energy transfer that occur in the tissue outside the vein with ultrasound-guided vein ablation therapy. In this experiment, a Ex-Vivo model of the human calf was used to analyze heat transfer and energy degradation in tissue surrounding the vein during endovascular radiofrequency ablation (RFA). A clinical vein ablation protocol was used to determine the tissue temperature distribution in 10 per cent agar gel. Heat energy from the radiofrequency catheter was measured for 140 seconds at fixed points by four thermometer probes placed equidistant radially at 0.0025, 0.005, and 0.01 m away from the RFA catheter. The temperature rose 1.5 degrees C at 0.0025 m, 0.6 degrees C at 0.005 m, and 0.0 degrees C at 0.01 m from the RFA catheter. There was a clinically insignificant heat transfer at the distances evaluated, 1.4 +/- 0.2 J/s at 0.0025 m, 0.7 +/- 0.3 J/s at 0.0050 m, and 0.3 +/- 0.0 J/s at 0.01 m. Heat degradation occurred rapidly: 4.5 +/- 0.5 J (at 0.0025 m), 4.0 +/- 1.6 J (at 0.0050 m), and 3.9 +/- 3.6 J (at 0.01 m). Tumescent anesthesia injected one centimeter around the vein would act as a heat sink to absorb the energy transferred outside the vein to minimize tissue and nerve damage and will help phlebologists strategize options for minimizing damage. PMID- 29336758 TI - Occult Appendiceal Neoplasms in Acute and Chronic Appendicitis: A Single Institution Experience of 1793 Appendectomies. AB - The incidence of appendiceal neoplasms may have been underreported in the past. Patients undergoing incidental appendectomies or appendectomies for chronic appendicitis may be at higher risk for an incidental appendiceal neoplasm. To determine the incidence of occult appendiceal neoplasms and identify risk factors associated with this pathology, a retrospective review of a pathology specimen database was conducted from November 2007 to December 2011, in a single tertiary care hospital center. All patients with appendectomies were included for analysis (n = 1793). Pathology specimens were grouped based on the indication for appendectomy, and the incidence of appendiceal neoplasms, and patient variables among the groups were compared using chi2 test and Student's t test. A total of 1793 appendectomy specimens met criteria for evaluation. The total number of appendiceal neoplasms was 31 (1.7%). There were 14 neoplasms in 1337 (1.0%) cases of acute appendicitis with 2 in 41 (4.9%) cases of chronic and 15 in 415 (3.6%) cases, where an incidental appendectomy was performed (P < 0.001). Patients with carcinoid tumors were significantly younger than patients with noncarcinoid tumors (P = 0.0001). Indication for operation was the only significant factor for predicting an appendiceal tumor on final pathology. Patients who undergo interval or incidental appendectomies may be at higher risk of appendiceal neoplasm compared with those performed for other indications. Younger patients may be at a higher risk of occult appendiceal carcinoid neoplasms than other age groups. Pathologic diagnosis in specific high-risk patient groups may be the only way to effectively capture these tumors for optimal treatment. PMID- 29336759 TI - Robotic Rectopexy for Rectal Prolapse in Pediatric Patients. AB - Rectal prolapse is the protrusion of the rectum out of the anus. Surgical correction can be accomplished via open and minimally invasive abdominal approaches, as well as from the perineum. Robotic rectopexy is an option for minimally invasive treatment of rectal prolapse. There are no studies that have established the efficacy of robotic rectopexy for rectal prolapse in the pediatric population. The aim of this study was to review the experience of robotic rectopexy at a single institution. This is a retrospective review of our pediatric robotic rectopexy experience from 2012 to 2015. Information was obtained from chart review of both operative notes and clinic visits. Four pediatric patients underwent a robotic rectopexy for rectal prolapse from 2012 to 2015. Three patients were male and one was female. The mean age was 15.5 years (range 13-17). Two patients had rectal prolapse with chronic constipation. One patient had rectal prolapse from Ehlers Danlos syndrome, and the last had rectal prolapse after imperforate anus repair as an infant. Three patients received a bowel preparation. Three patients were completed robotically, and one patient required conversion to an open procedure. The average postoperative length of stay was 3.25 days (range 2-4). There were no episodes of recurrent prolapse. Two patients had improvement in constipation, one had no improvement, and one had no documented change. Average postoperative follow-up was 11.5 months (range 3-29). This study was a review of one institution's experience with pediatric robotic rectopexy. With short-term follow-up, there was no recurrence of prolapse. Robotic rectopexy provided a safe, reliable, and short-term resolution of rectal prolapse in pediatric patients. PMID- 29336760 TI - Cancer Frequency in Retrosternal Goiter. AB - Retrosternal goiter prevalence is 5 to 40 per cent according to classifications in goiter series. Goiters with mediastinal extension were reported to be related with higher cancer rates. In our study, we aimed to investigate whether cancer incidence increased in retrosternal goiters compared with the cervical ones. Three hundred and ninety consecutive patients, who had surgery because of retrosternal goiter in Istanbul University Medical Faculty Department of General Surgery between 2005 and 2015 were included in the study (Group 1). Control group included 880 patients who had surgery because of nontoxic multinodular goiter in the same period (Group 2). Preoperative ultrasonography (USG) was performed to each patient. Fine-needle aspiration biopsy was performed in suspicious nodules and results were recorded. Carcinomas in histopathological examination were classified as intrathorasic and extrathorasic. Diagnostic rates of USG results were compared with histopathologic cancer results. Papillary carcinoma was diagnosed in 76 patients with retrosternal goiter (19%) and in 200 patients in the control group (22%). No statistically significant difference was detected between groups regarding the tumor rates (P > 0.05). One hundred and forty-four tumoral foci were detected in 76 patients with papillary carcinoma in retrosternal goiter patients. Three hundred and seventy tumoral foci were detected in 200 patients with papillary carcinoma in the control group. In the retrosternal goiter group, 104 carcinoma lesions of 144 papillary carcinomas were intrathorasic (72%). No statistically significant difference was detected between intrathorasic (2.1 +/- 1 cm) and extrathorasic regiones (1.9 +/- 0.8 cm) regarding the tumor size P > 0.05. When patients with and without cancer in the retrosternal goiter group were compared regarding familial thyroid cancer history, radiation to the neck, and cervical adenopathy, no statistically significant difference was detected. Cancer incidence of retrosternal goiters was not higher than that of the cervical ones. Yet, cancer foci of retrosternal goiters were commonly located in the intrathorasic area and were not detected with USG. Depending on these findings, we suggest that all retrosternal goiters should be surgically treated. PMID- 29336761 TI - Lymphatic Permeation Predicts Systemic Recurrence in Combination with Vascular Involvement in Laparoscopically Resected N0 Colon Cancer. AB - High-risk patient selection is required in N0 colon cancer. Although a number of studies have suggested high-risk clinicopathological predictors, most of these are based on analyses in heterogeous patients in terms of surgical procedures. Laparoscopic surgery for colon cancer is becoming a standard procedure worldwide because of its less invasiveness. Accordingly, we aimed to identify bona fide high-risk factors of recurrence in homogeneous N0 patients who underwent laparoscopic surgery. Two hundred and twenty-five patients who underwent laparoscopic curative resection for N0 colon cancer were analyzed. Clinicopathological parameters were tested for their relation to survival. The 5 year recurrence-free survival rate (RFS) was 96.1 per cent. Lymphatic involvement (P < 0.001), vascular involvement (P = 0.007), and size of tumor (P = 0.023) were significantly associated with worse prognosis in the univariate analyses. Lymphatic involvement was the independent prognostic factor associated with RFS in the multivariate analysis (P = 0.013). Importantly, lymphatic involvement predicts detrimental prognosis only when vascular involvement is present. The RFS of the patients with both lymphatic and vascular involvement was 88.9 per cent, whereas it was 100 per cent in the counterpart. Differentiation, vascular involvement preoperative carcinoembryonic antigen, and CA 19-9 levels were significantly associated with lymphatic involvement in a multivariate logistic regression analyses. The present study concludes that lymphatic involvement in the presence of vascular involvement may be a high risk for systemic recurrence in the laparoscopically resected N0 colon cancer. PMID- 29336762 TI - R A Cowley, the "Golden Hour," the "Momentary Pause," and the "Third Space". AB - R Adams Cowley (1917-1991), the Baltimore thoracic and trauma surgeon, was an outstanding politician and promoter of emergency medical services. His skills included the effective use of language, for example, identifying the critical time immediately after injury as a "golden hour," and describing shock as a "momentary pause in the act of death." Conversely, Cowley avoided the tendency of some contemporaries to justify massive crystalloid infusion by invoking a "third space." Cowley is often assumed to have originated the first two phrases, but, in fact, their histories go back at least to the 19th century and illustrate the development of surgical science. The "third space" is often assumed to have originated with Cowley's contemporary, Tom Shires (1925-2007), but, in fact, neither of them used the phrase to describe Shires' controversial theories about an extracellular fluid deficit after trauma. Reviewing the actual etymology of these terms may help clarify the history of the underlying scientific ideas and enable more effective communication in the future. PMID- 29336763 TI - Methicillin-Resistant Staphylococcus aureus in a Trauma Population: Does Decolonization Prevent Infection? AB - The purpose of this study was to determine if a decolonization regimen reduces the frequency of methicillin-resistant Staphylococcus aureus (MRSA) infections and if colonization isolates are genetically related to subsequent infectious strains. Trauma patients admitted to the intensive care unit with positive MRSA nasal swabs were randomized to either daily chlorhexidine gluconate (CHG) baths and mupirocin (MUP) ointment to the nares or soap and water baths and placebo ointment for five days. Nasal swabs performed at the end of treatment and invasive MRSA infections during the remaining hospitalization were compared with the original nasal isolate via polymerase chain reaction for genetic relatedness as well as CHG and MUP resistance genes. Six hundred and seventy-eight intensive care unit admissions were screened, and 92 (13.6%) had positive (+) MRSA nasal swabs over a 22-month period ending in 3/2014. After the five day treatment period, there were 13 (59.1%) +MRSA second nasal swabs for CHG + MUP and 9 (90%) for soap and water baths and placebo, P = 0.114. No isolates tested positive for the MUP or CHG resistance genes mupA and qacA/B but 7 of 20 (35%) contained smr. There were seven (31.8%) MRSA infections in the CHG group and six (60%) for soap, P = 0.244. All 13 patients with MRSA infections had the same MRSA isolate present in the original nasal swab. There was no difference in all-cause Gram-negative or positive infections for CHG versus soap, 12 (54.5%) versus 7 (70%), P = 0.467. CHG + MUP are ineffective in eradicating MRSA from the anterior nares but may reduce the incidence of infection. Subsequent invasive MRSA infections are typically caused by the endogenous colonization strain. PMID- 29336764 TI - Mode of Transport and Clinical Outcome in Rural Trauma: A Helicopter versus Ambulance Comparison. AB - Helicopter Emergency Medical Services (HEMS) is presumably an effective way of patient transport in rural trauma, yet the literature addressing its effectiveness is scarce. In this study, we compared the clinical outcome of rural trauma patients between Ground Emergency Medical Services (GEMS) and HEMS transportation from the beginning of 2006 to the end of 2012. Focus was placed on identifying factors associated with survival to discharge in these patients. Over the seven-year study period, 4492 patients met the inclusion criteria with 2414 patients (54%) being transferred by GEMS and 2078 patients (46%) being transferred by HEMS. In comparison with GEMS, patients transferred by HEMS were younger men who were admitted with a higher mean Injury Severity Score and a lower mean Glasgow Coma Score (all Ps < 0.0001). HEMS patients were more frequently intubated before arrival at the trauma center (32% vs 9%, P < 0.0001) and were more frequently transferred to the operating room from the emergency department (11% vs 5%, P < 0.0001). In multivariate analysis, transfer by HEMS was associated with a significant increase in survival to discharge (odds ratio: 1.57, 95% confidence interval: 1.03-2.40, P = 0.036). Blunt injury, no intubation, and Glasgow Coma Score >8 were also associated with significantly improved odds of survival to discharge (all P < 0.0001). These findings show that although patients transferred by HEMS arrived in less favorable clinical conditions, HEMS transfer was associated with significantly higher odds of survival in rural trauma. PMID- 29336765 TI - Robotic Inguinal Hernia Repair. AB - Laparoscopic inguinal hernia repair has certain advantages over open repair including less pain and earlier return to normal activity. Concurrent robotic inguinal hernia repair at the time of prostatectomy has been shown to have a lower recurrence rate than open repair. Robotic surgery adds high definition visualization and articulating instruments which enhances dexterity that makes laparoscopic hernia repair more refined. A series of robotic, laparoscopic, inguinal hernia repairs by a single surgeon with an extensive laparoscopic hernia experience at a single institution was undertaken to determine the role of robotic laparoscopic inguinal hernia repair in minimally invasive surgery. Five hundred forty-two laparoscopic inguinal hernia operations were performed from April 2012 through December 2015. There were 154 cases of robotic transabdominal preperitoneal procedures done during that time. Hospital records and follow-up care were prospectively reviewed and data collected for age, sex, American Society of Anesthesia class, and operative time. Follow-up was done at 2, 8, and 16 weeks after surgery. All patients consented for the study. Ninety percent of the patients were male. Age averaged 57.04 years with a range of 21 to 85 years. American Society of Anesthesia averaged 2.01 with comorbidities of hypertension, hypercholesterolemia, and gastroesophageal reflux disease being the most common. Body mass index was between 19 and 31.6, averaging 24.34. Twenty-five patients (16%) had an umbilical hernia repair done concomitantly. Operating room time ranged from 25 to 140 minutes with an average of 63.6 minutes decreased as experience increased. One patient with a large, left scrotal hernia was converted to open; one patient developed perforated sigmoid diverticulitis seven days postop and case #5 recurred indirectly after a direct hernia repair. Four patients required prolonged postoperative Foley catheterization. Robotic inguinal hernia repair is safe and effective. Operating room time was longer than standard laparoscopic herniorrhaphy but decreased with experience. A single-port platform may have use in patients with umbilical hernias, 16 per cent, and will need to be studied. PMID- 29336766 TI - The Implications of Transfer to an Acute Care Surgical Tertiary Service. AB - Tertiary hospitals are increasingly called on by smaller hospitals and free standing emergency rooms (ERs) to provide surgical care for complex patients. This study assesses patients transferred to an acute care surgery service. The ER and transfer center logs, as well as billing data, were reviewed for 12 months for all cases evaluated by acute care surgery. The charts were reviewed for demographics, comorbidities, and outcomes. A total of 111 transferred patients with complete data were identified, with 59 transferred from another hospital and 52 from a free-standing ER. The hospital transfer patients were older with more comorbidities, had a longer length of stay, and were more likely discharged to skilled care. There was no difference in the percent of patients requiring a procedure; however, significantly more procedures in the hospital transfer group were done by nonsurgical specialties Better infrastructure to monitor the impact of hospital transfers is warranted in the setting of the complex patient population transferred to tertiary hospitals. PMID- 29336767 TI - Surgery for Acromioclavicular Dislocation: Factors Affecting Functional Recovery. AB - The objective of the study is to compare the clinical outcomes of two different interventions for Rockwood type III (or above) acromioclavicular dislocation and study the factors influencing postoperative functional recovery. A total of 60 patients with Rockwood type III (or above) acromioclavicular dislocation were included in the study. Patients were divided into two groups based on the surgical intervention: Clavicular Hook Plate Fixation (Group A) and EndoButton technique of Coracoclavicular Ligament Reconstruction (Group B). Constant shoulder score was employed for the assessment of functional recovery before and after the surgery. Statistical analysis was performed in terms of age, gender, obesity (body mass index), Constant shoulder score, compliance of rehabilitation guidance, and the amount of reduction loss. The Constant score was significantly improved after surgery (P < 0.05). The score was better in Group B compared with Group A in the sixth month after surgery (P < 0.05), but showed no significant difference in the fifteenth month. Compliance with rehabilitation guidance significantly affected the values of the Constant score after the surgery (P < 0.05). Clavicular Hook Plate and EndoButton technique both are effective ways to treat Rockwood type III (or above) acromioclavicular dislocation. However, EndoButton technique is more effective for early functional recovery. Patients' compliance with rehabilitation guidance is critical for the functional recovery after surgery. PMID- 29336768 TI - Is Routine Continuous EEG for Traumatic Brain Injury Beneficial? AB - Severe traumatic brain injury (TBI) is associated with increased risk for early clinical and subclinical seizures. The use of continuous electroencephalography (cEEG) monitoring after TBI allows for identification and treatment of seizures that may otherwise occur undetected. Benefits of "routine" cEEG after TBI remain controversial. We examined the rate of subclinical seizures identified by cEEG in TBI patients admitted to a Level I trauma center. We analyzed a cohort of trauma patients with moderate to severe TBI (head Abbreviated Injury Score >=3) who received cEEG within seven days of admission between October 2011 and May 2015. Demographics, clinical data, injury severity, and costs were recorded. Clinical characteristics were compared between those with and without seizures as identified by cEEG. A total of 106 TBI patients with moderate to severe TBI received a cEEG during the study period. Most were male (74%) with a mean age of 55 years. Subclinical seizures were identified by cEEG in only 3.8 per cent of patients. Ninety-three per cent were on antiseizure prophylaxis at the time of cEEG. Patients who had subclinical seizures were significantly older than their counterparts (80 vs 54 years, P = 0.03) with a higher mean head Abbreviated Injury Score (5.0 vs 4.0, P = 0.01). Mortality and intensive care unit stay were similar in both groups. Of all TBI patients who were monitored with cEEG, seizures were identified in only 3.8 per cent. Seizures were more likely to occur in older patients with severe head injury. Given the high cost of routine cEEG and the low incidence of subclinical seizures, we recommend cEEG monitoring only when clinically indicated. PMID- 29336769 TI - Processes of Health Care Delivery, Education, and Provider Satisfaction in Acute Care Surgery: A Systematic Review. AB - In recent years, significant workload, high acuity, and complexity of emergency general surgery conditions have led hospitals to replace the traditional on-call model with dedicated acute care surgery (ACS) service models. A systematic search of Ovid, EMBASE, and MEDLINE was undertaken to examine the impact of ACS services on health-care delivery processes and cost, education, and provider satisfaction. From 1827 papers, reviewers identified 22 studies that met inclusion criteria and subsequently used The Evidence-Based Practice for Improving Quality method and Newcastle-Ottawa Scale to score quality and level of evidence. Most studies found an increase in daytime operating, improved patient transit from emergency department to operating room to home, and decreased length of stay. Higher and more diverse case volumes improved resident education and operative experience. ACS services enhanced the educational experience of residents on subspecialty services by offloading emergency work from those services. Finally, surgeons generally felt that ACS services improved job satisfaction, productivity, and billing. The ACS model has demonstrated improvement in timeliness of care, diversified case mix, decreased costs, improved trainee learning, and increased surgeon job satisfaction. PMID- 29336770 TI - Limit Crystalloid Resuscitation after Traumatic Brain Injury. AB - Patients with traumatic brain injury (TBI) are often resuscitated with crystalloids in the emergency department (ED) to maintain cerebral perfusion. The purpose of this study was to evaluate whether crystalloid resuscitation volume impacts mortality in TBI patients. This was a retrospective study of trauma patients with head abbreviated injury scale score >=2, who received crystalloids during ED resuscitation between 2004 and 2013. Clinical characteristics and volume of crystalloids received in the ED were collected. Patients who received <2 L of crystalloids were categorized as low volume (LOW), whereas those who received >=2 L were considered high volume (HIGH). Mortality and outcomes were compared. Multivariable regression analysis was used to determine the odds of mortality while controlling for confounders. Over 10 years, 875 patients met inclusion criteria. Overall mortality was 12.5 per cent. Seven hundred and forty two (85%) were in the LOW cohort and 133 (15%) in the HIGH cohort. Gender and age were similar between the groups. The HIGH cohort had lower admission systolic blood pressure (128 vs 138 mm Hg, P = 0.001), lower Glasgow coma scale score (10 vs 12, P < 0.001), higher head abbreviated injury scale (3.8 vs 3.3, P < 0.001), and higher injury severity score (25 vs 18, P < 0.001). The LOW group had a lower unadjusted mortality (10 vs 26%, P < 0.001). Multivariable analysis adjusting for confounders demonstrated that those resuscitated with >=2 L of crystalloids had increased odds of mortality (adjusted odds ratio 2.25, P = 0.005). Higher volume crystalloid resuscitation after TBI is associated with increased mortality, thus limited resuscitation for TBI patients may be indicated. PMID- 29336771 TI - Surgical and Endovascular Management of Patients with Chronic Mesenteric Ischemia: A Single Center Experience. AB - Chronic mesenteric ischemia is a rare intestinal disorder, with a potential evolution toward intestinal infraction. The choice of the appropriate treatment is currently the most crucial issue in the management of patients with chronic mesenteric ischemia. We describe our experience with 16 cases, and we discuss the current diagnostic and therapeutic approaches. A retrospective review of the clinical records was performed, and demographic, clinical, therapeutic, and prognostic data were collected. Six patients were females (37%), and the mean age was 62 years. Postprandial pain was present in all the cases, whereas sitophobia and weight loss were detected in 87 per cent of them. Eight patients were treated with open surgery; no perioperative deaths or relevant complications occurred. One patient had a restenosis of the celiac trunk and superior mesenteric artery 10 months after surgery. No deaths or relevant complications occurred in the remaining patients, who underwent an endovascular procedure. One patient presented a restenosis distal to the vascular stent, whereas two patients died due to comorbidities. The low rates of postoperative morbidity, mortality, and restenosis obtained suggest that surgical or endovascular correction of chronic mesenteric ischemia is satisfactory when performed by experienced surgeons, with an adequate selection of the patients. PMID- 29336772 TI - tPA/DNase for Complicated Parapneumonic Effusions and Empyemas. PMID- 29336773 TI - Outcomes of Elderly Patients Undergoing Elective Abdominal Surgery. PMID- 29336774 TI - Altered cortical thickness and attentional deficits in adolescent girls and women with bulimia nervosa. AB - BACKGROUND: Frontostriatal and frontoparietal abnormalities likely contribute to deficits in control and attentional processes in individuals with bulimia nervosa and to the persistence of dysregulated eating across development. This study assessed these processes and cortical thickness in a large sample of adolescent girls and women with bulimia nervosa compared with healthy controls. METHODS: We collected anatomical MRI data from adolescent girls and women (ages 12-38 yr) with full or subthreshold bulimia nervosa and age-matched healthy controls who also completed the Conners Continuous Performance Test-II (CPT-II). Groups were compared on task performance and cortical thickness. Mediation analyses explored associations among cortical thickness, CPT-II variables, bulimia nervosa symptoms and age. RESULTS: We included 60 girls and women with bulimia nervosa and 54 controls in the analyses. Compared with healthy participants, those with bulimia nervosa showed increased impulsivity and inattention on the CPT-II, along with reduced thickness of the right pars triangularis, right superior parietal and left dorsal posterior cingulate cortices. In the bulimia nervosa group, exploratory analyses revealed that binge eating frequency correlated inversely with cortical thickness of frontoparietal and insular regions and that reduced frontoparietal thickness mediated the association between age and increased symptom severity and inattention. Binge eating frequency also mediated the association between age and lower prefrontal cortical thickness. LIMITATIONS: These findings are applicable to only girls and women with bulimia nervosa, and our cross-sectional design precludes understanding of whether cortical thickness alterations precede or result from bulimia nervosa symptoms. CONCLUSION: Structural abnormalities in the frontoparietal and posterior cingulate regions comprising circuits that support control and attentional processes should be investigated as potential contributors to the maintenance of bulimia nervosa and useful targets for novel interventions. PMID- 29336775 TI - Neural correlates of emotional action control in anger-prone women with borderline personality disorder. AB - BACKGROUND: Difficulty in controlling emotional impulses is a crucial component of borderline personality disorder (BPD) that often leads to destructive, impulsive behaviours against others. In line with recent findings in aggressive individuals, deficits in prefrontal amygdala coupling during emotional action control may account for these symptoms. METHODS: To study the neurobiological correlates of altered emotional action control in individuals with BPD, we asked medication-free, anger-prone, female patients with BPD and age- and intelligence matched healthy women to take part in an approach-avoidance task while lying in an MRI scanner. The task required controlling fast behavioural tendencies to approach happy and avoid angry faces. Additionally, before the task we collected saliva testosterone and self-reported information on tendencies to act out anger and correlated this with behavioural and functional MRI (fMRI) data. RESULTS: We included 30 patients and 28 controls in our analysis. Patients with BPD reported increased tendencies to act out anger and were faster in approaching than avoiding angry faces than with healthy women, suggesting deficits in emotional action control in women with BPD. On a neural level, controlling fast emotional action tendencies was associated with enhanced activation in the antero- and dorsolateral prefrontal cortex across groups. Healthy women showed a negative coupling between the left dorsolateral prefrontal cortex and right amygdala, whereas this was absent in patients with BPD. LIMITATIONS: Specificity of results to BPD and sex differences remain unknown owing to the lack of clinical control groups and male participants. CONCLUSION: The results indicate reduced lateral prefrontal-amygdala communication during emotional action control in anger-prone women with BPD. The findings provide a possible neural mechanism underlying difficulties with controlling emotional impulses in patients with BPD. PMID- 29336776 TI - Pharmacokinetics and dose individualization of ceftriaxone in a hepatically impaired, critically-ill patient receiving continuous venovenous hemofiltration. PMID- 29336777 TI - Presence of apoptosis distinguishes primary central nervous system lymphoma from glioblastoma during intraoperative consultation. AB - AIM: To evaluate the overlapping and distinguishing cytologic features of primary central nervous system lymphoma (PCNSL), diffuse large B-cell lymphoma, and glioblastoma (GM) in frozen sections and squash smear slides. MATERIALS AND METHODS: Intraoperative frozen sections and squash smear slides from PCNSL (N = 63) and GM (N = 122) patients diagnosed from 2005 to 2015 were retrieved from pathology records. Overlapping and distinguishing histologic features were examined and statistically analyzed. RESULTS: Necrosis and moderate nuclear size variation were common features of PCNSL and GM. PCNSL characteristically showed apoptosis, lack of a fibrillary background, monotonous nuclei, scant cytoplasm, lack of microvascular proliferation, and presence of perivascular cuffing. Multivariate analysis revealed that presence of apoptosis was the most powerful predictive parameter for the diagnosis of PCNSL. CONCLUSION: The presence of apoptosis was effective for the intraoperative diagnosis of PCNSL compared to GM.?. PMID- 29336779 TI - Prophylactic thyroidectomies in MEN2 syndrome: Management and outcomes. AB - AIM OF THE STUDY: The aim of the study was to evaluate the outcomes of prophylactic thyroidectomies performed in an academic setting in the context of multiple endocrine neoplasia type 2 (MEN2) syndrome. METHODS: A chart review of patients <18years old who underwent prophylactic thyroidectomy for a MEN2 syndrome at a children's hospital between 2006 and 2015 was performed. MAIN RESULTS: The study included 21 patients (57% female) with a mean age of 6.2+/ 2.5years. All patients were asymptomatic at first evaluation. Nineteen had MEN2A syndrome with RET proto-oncogene mutations identified. The remaining two were RET negative with familial medullary thyroid cancer (FMTC). One patient had a concomitant Hirschsprung disease. Of the 11 patients who had RET proto-oncogene mutations ranked as Moderate Risk for medullary thyroid cancer (MTC) (American Thyroid Association), one had a microcarcinoma on the resected specimen, and the others had C-Cell Hyperplasia. Among the 8 patients who had RET proto-oncogene mutations ranked as High Risk level for MTC, all had microcarcinoma. Of the nine patients with microcarcinoma, three underwent surgery after 5years of age. No microcarcinoma exceeded 6mm. There were no permanent complications. Six patients experienced transient hypocalcemia, of which only one was symptomatic. No patients had lymph node involvement, and no recurrence was noted during the follow-up period. CONCLUSIONS: Of 21 children with familial thyroid cancer syndrome who underwent a prophylactic thyroidectomy, nine had microcarcinoma. This study highlights the need for a complete familial history, including FMTC history and mandatory preventive surgical approach. LEVEL OF EVIDENCE: III. PMID- 29336778 TI - Damage-induced reactive oxygen species regulate vimentin and dynamic collagen based projections to mediate wound repair. AB - Tissue injury leads to early wound-associated reactive oxygen species (ROS) production that mediate tissue regeneration. To identify mechanisms that function downstream of redox signals that modulate regeneration, a vimentin reporter of mesenchymal cells was generated by driving GFP from the vimentin promoter in zebrafish. Early redox signaling mediated vimentin reporter activity at the wound margin. Moreover, both ROS and vimentin were necessary for collagen production and reorganization into projections at the leading edge of the wound. Second harmonic generation time-lapse imaging revealed that the collagen projections were associated with dynamic epithelial extensions at the wound edge during wound repair. Perturbing collagen organization by burn wound disrupted epithelial projections and subsequent wound healing. Taken together our findings suggest that ROS and vimentin integrate early wound signals to orchestrate the formation of collagen-based projections that guide regenerative growth during efficient wound repair. PMID- 29336780 TI - Advances in non-contrast quiescent-interval slice-selective (QISS) magnetic resonance angiography. AB - There is a pressing clinical need to develop accurate, efficient non-contrast magnetic resonance angiography (NC-MRA) techniques. Our efforts in the field have focused on a novel non-subtractive technique called quiescent-interval slice selective (QISS) MRA. Compared with other NC-MRA techniques, QISS has the advantage of being more accurate while enabling a simpler and more efficient workflow. The original implementation, which uses electrocardiogram (ECG) gating and a Cartesian k-space trajectory, is a reliable technique for the evaluation of peripheral arterial disease (PAD). Recent advances in QISS technology include the use of a radial k-space trajectory, which facilitates rapid imaging of the coronary, renal, and pulmonary arteries as well as other vascular beds, and ungated ("UnQISS") acquisitions for PAD. PMID- 29336781 TI - Corrigendum to "Osteopontin promotes collagen I synthesis in hepatic stellate cells by miRNA-129-5p inhibition" [Exp. Cell Res. 362(2) (2018) 343-348]. PMID- 29336782 TI - Loss of GPNMB Causes Autosomal-Recessive Amyloidosis Cutis Dyschromica in Humans. AB - Amyloidosis cutis dyschromica (ACD) is a distinct form of primary cutaneous amyloidosis characterized by generalized hyperpigmentation mottled with small hypopigmented macules on the trunks and limbs. Affected families and sporadic case subjects have been reported predominantly in East and Southeast Asian ethnicities; however, the genetic cause has not been elucidated. We report here that the compound heterozygosity or homozygosity of GPNMB truncating alleles is the cause of autosomal-recessive ACD. Six nonsense or frameshift mutations were identified in nine individuals diagnosed with ACD. Immunofluorescence analysis of skin biopsies showed that GPNMB is expressed in all epidermal cells, with the highest staining observed in melanocytes. GPNMB staining is significantly reduced in the lesional skin of affected individuals. Hyperpigmented lesions exhibited significantly increased amounts of DNA/keratin-positive amyloid deposits in the papillary dermis and infiltrating macrophages compared with hypo- or depigmented macules. Depigmentation of the lesions was attributable to loss of melanocytes. Intracytoplasmic fibrillary aggregates were observed in keratinocytes scattered in the lesional epidermis. Thus, our analysis indicates that loss of GPNMB, which has been implicated in melanosome formation, autophagy, phagocytosis, tissue repair, and negative regulation of inflammation, underlies autosomal-recessive ACD and provides insights into the etiology of amyloidosis and pigment dyschromia. PMID- 29336783 TI - Bronchiectasis is highly prevalent in anti-MPO ANCA-associated vasculitis and is associated with a distinct disease presentation. AB - OBJECTIVES: To assess the prevalence of bronchiectasis in a Western cohort with ANCA-positive granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA) and its correlations with disease presentation and outcome. METHODS: Retrospective study of ANCA-associated vasculitis (AAV) patients followed at Nantes University Hospital (2005-2015). Clinical, biological, and follow-up data were collected through chart review. Two experienced radiologists blinded to the clinical data interpreted chest high-resolution CTs according to the Feischner Society criteria. RESULTS: Fifty-eight patients were included: 30 had MPA (51.7%) and 28 had GPA (48.3%). The median age at AAV diagnosis was 65.5 years. Anti-MPO ANCA and anti-PR3-ANCA were present in 39 (67.2%) and 19 (32.8%) patients, respectively. Overall, bronchiectasis was found in 22 patients (37.9%), all of whom had anti-MPO ANCA. In multivariate analysis, bronchiectasis was independently associated with anti-MPO-ANCA, female gender and age at AAV diagnosis. Furthermore, anti-MPO ANCA patients with bronchiectasis had more frequent peripheral nerve involvement (54.5 vs. 17.6%, p = 0.019) and less frequent renal involvement than those without bronchiectasis (40.9% vs. 82.3%, p = 0.009). Disease course, survival and risk of severe pulmonary infection were similar in patients with and without bronchiectasis on chest CT. CONCLUSIONS: This study shows that bronchiectasis is a highly prevalent pre-existing respiratory condition in Caucasian patients with anti-MPO AAV. This subset of patients exhibits a distinct presentation. Further studies are needed to confirm these findings and clarify the clinical implications of this association. Whether the respiratory tract could be the site of initiation of anti-MPO auto-immunity remains to be investigated. PMID- 29336784 TI - Reflections on the utility of excess bases as a marker in the prognosis of chest trauma in the geriatric population. PMID- 29336785 TI - The erector spinae plane block in 4 cases of video-assisted thoracic surgery. AB - Multimodal anaesthesia, combining epidural catheter and general anaesthesia, is a common technique in thoracic surgery, however, epidural catheter placement is not always possible. Recently, erector spinae plane block has been described, which provides analgesia like that of the epidural block, although unilateral, and which has been used in various procedures at thoracic level. At present, there are no studies comparing the efficacy or safety of this block with those commonly used in thoracic surgery. However, its safety profile and contraindications seem different from those of the epidural catheter, since its placement is done under ultrasound view, the needle introduction is done in plane and the ultrasound target, the transverse process, is easily identifiable and is relatively remote from major neural or vascular structures and the pleura. Unlike other blockages made by anatomical references, erector spinae plane block can be done with the patient in different positions. We describe our experience with erector spinae plane block as part of a multimodal anaesthetic approach in thoracic surgery. PMID- 29336786 TI - A Possible Role of Takotsubo Cardiomyopathy in Ventricular Fibrillation During Delirium Tremens: A Case Report and Literature Review. PMID- 29336787 TI - Clinical Severity Alone Does Not Determine Disposition Decisions for Patients in the Emergency Department with Suicide Risk. AB - BACKGROUND: Boarding of patients with suicide risk in emergency departments (EDs) negatively affects both patients and society. Factors other than clinical severity may frequently preclude safe outpatient dispositions among suicidal patients boarding for psychiatric admission in the ED. OBJECTIVE: To determine the extent to which nonclinical factors preclude safe outpatient discharge from the ED among patients boarding for psychiatric admission based on suicide risk. METHODS: A survey regarding the importance of 13 clinical and 19 nonclinical barriers to safe outpatient disposition was administered in the ED to 40 adults who were determined by psychiatrists to require inpatient level of psychiatric care due to suicide risk. A second survey regarding whether addressing the nonclinical factors would have enabled a safe outpatient disposition in each case was administered to the psychiatrists who evaluated each patient participant. RESULTS: Out of 40 patient participants, 39 cited at least one nonclinical factor that could have enabled a safe outpatient disposition had it been correctable in the ED. According to the psychiatrists who made the decision to hospitalize, 10 (25%) of the patient participants could have been discharged had social support become available. CONCLUSION: Both clinical and nonclinical factors affect disposition from the ED after an evaluation for suicide risk. Attention to nonclinical factors should be considered in programmatic efforts to reduce ED boarding of patients with suicide risk. PMID- 29336788 TI - Grey Wolf based control for speed ripple reduction at low speed operation of PMSM drives. AB - Speed ripple at low speed-high torque operation of Permanent Magnet Synchronous Machine (PMSM) drives is considered as one of the major issues to be treated. The presented work proposes an efficient PMSM speed controller based on Grey Wolf (GW) algorithm to ensure a high-performance control for speed ripple reduction at low speed operation. The main idea of the proposed control algorithm is to propose a specific objective function in order to incorporate the advantage of fast optimization process of the GW optimizer. The role of GW optimizer is to find the optimal input controls that satisfy the speed tracking requirements. The synthesis methodology of the proposed control algorithm is detailed and the feasibility and performances of the proposed speed controller is confirmed by simulation and experimental results. The GW algorithm is a model-free controller and the parameters of its objective function are easy to be tuned. The GW controller is compared to PI one on real test bench. Then, the superiority of the first algorithm is highlighted. PMID- 29336789 TI - Actuator stiction compensation via variable amplitude pulses. AB - A novel model free stiction compensation scheme is developed which eliminates the oscillations and also reduces valve movement, allowing good setpoint tracking and disturbance rejection. Pulses with varying amplitude are added to the controller output to overcome stiction and when the error becomes smaller than a specified limit, the compensation ceases and remains in a standby mode. The compensation re starts as soon as the error exceeds the user specified threshold. The ability to cope with uncertainty in friction is a feature achieved by the use of pulses of varying amplitude. The algorithm has been evaluated via simulation and by application on an industrial DCS system interfaced to a pilot scale process with features identical to those found in industry including a valve positioner. PMID- 29336790 TI - A multiple kernel classification approach based on a Quadratic Successive Geometric Segmentation methodology with a fault diagnosis case. AB - This work presents a new approach for solving classification and learning problems. The Successive Geometric Segmentation technique is applied to encapsulate large datasets by using a series of Oriented Bounding Hyper Box (OBHBs). Each OBHB is obtained through linear separation analysis and each one represents a specific region in a pattern's solution space. Also, each OBHB can be seen as a data abstraction layer and be considered as an individual Kernel. Thus, it is possible by applying a quadratic discriminant function, to assemble a set of nonlinear surfaces separating each desirable pattern. This approach allows working with large datasets using high speed linear analysis tools and yet providing a very accurate non-linear classifier as final result. The methodology was tested using the UCI Machine Learning repository and a Power Transformer Fault Diagnosis real scenario problem. The results were compared with different approaches provided by literature and, finally, the potential and further applications of the methodology were also discussed. PMID- 29336791 TI - Robust inertia-free attitude takeover control of postcapture combined spacecraft with guaranteed prescribed performance. AB - In this paper, a robust inertia-free attitude takeover control scheme with guaranteed prescribed performance is investigated for postcapture combined spacecraft with consideration of unmeasurable states, unknown inertial property and external disturbance torque. Firstly, to estimate the unavailable angular velocity of combination accurately, a novel finite-time-convergent tracking differentiator is developed with a quite computationally achievable structure free from the unknown nonlinear dynamics of combined spacecraft. Then, a robust inertia-free prescribed performance control scheme is proposed, wherein, the transient and steady-state performance of combined spacecraft is first quantitatively studied by stabilizing the filtered attitude tracking errors. Compared with the existing works, the prominent advantage is that no parameter identifications and no neural or fuzzy nonlinear approximations are needed, which decreases the complexity of robust controller design dramatically. Moreover, the prescribed performance of combined spacecraft is guaranteed a priori without resorting to repeated regulations of the controller parameters. Finally, four illustrative examples are employed to validate the effectiveness of the proposed control scheme and tracking differentiator. PMID- 29336792 TI - An Ounce of Prevention May Be Worth Many Pounds of Cure. PMID- 29336794 TI - Tubercular Dactylitis in a Young Boy. PMID- 29336795 TI - The Breathing Effort of Very Preterm Infants at Birth. AB - OBJECTIVE: To compare the respiratory effort of very preterm infants receiving positive pressure ventilation (PPV) with infants breathing on continuous positive airway pressure (CPAP), directly after birth. STUDY DESIGN: Recorded resuscitations of very preterm infants receiving PPV or CPAP after birth were analyzed retrospectively. The respiratory effort (minute volume and recruitment breaths [>8 mL/kg], heart rate, oxygen saturation, and oxygen requirement were analyzed for the first 2 minutes and in the fifth minute after birth. RESULTS: Respiratory effort was analyzed in 118 infants, 87 infants receiving PPV and 31 infants receiving CPAP (median gestational age, 28 weeks [IQR, 26-29] vs 29 weeks [IQR, 29-30; P < .001); birth weight, 1059 g [IQR, 795-1300] vs 1205 g [IQR, 956 1418; P = .06]). The minute volume of spontaneous breaths of infants receiving PPV was lower at 2 minutes (37 mL/kg/minute [IQR, 15-69] vs 188 mL/kg/minute [IQR, 128-297; P < .001]) and at 5 minutes (112 mL/kg/minute [IQR, 46-229] vs 205 mL/kg/minute [IQR, 174-327; P < .001]). Recruitment breaths occurred less in the PPV group at 2 minutes (0 breaths/minute [IQR, 0-1] vs 4 breaths/minute [IQR, 1 8; P < .001]) and 5 minutes (0 breaths/minute [IQR, 0-3] vs 2 breaths/minute [IQR, 0-11; P = .01). The heart rate was lower in the PPV group (94 beats/minute [IQR, 68-128] vs 124 beats/minute [IQR, 100-144; P = .02]) as was oxygen saturation (50% [IQR, 35%-66%] vs 67% [IQR, 34%-80%; P = .04]), but not different at 5 minutes (heart rate, 149 beats/minute [IQR, 131-162] vs 150 beats/minute [IQR, 132-160; P = NS]; oxygen saturation , 91% [IQR, 80%-95%] vs 92% [IQR, 89% 97%; P = NS]). The oxygen requirement was higher (at 2 minutes, 30% [IQR, 21% 53%] vs 21% [IQR, 21%-29%; P = .05]; at 5 minutes, 39% [IQR, 22%-91%] vs 22% [IQR, 21%-31%; P = .003]). CONCLUSION: Very preterm infants breathe at birth when receiving PPV, but the respiratory effort was significantly lower when compared with infants receiving CPAP only. The reduced breathing effort observed likely justified applying PPV in most infants. PMID- 29336796 TI - An Unusual Cause of Abdominal Pain. PMID- 29336797 TI - Deficit of Fat Free Mass in Very Preterm Infants at Discharge is Associated with Neurological Impairment at Age 2 Years. AB - Preterm infants have a deficit of fat-free mass accretion during hospitalization. This study suggests that z score of fat-free mass at discharge is associated with neurologic outcome (P = .003) at 2 years of age, independent of sex, gestational age, and birth weight z score. Interventions to promote quality of growth should be considered. PMID- 29336793 TI - Hand Preference and Cognitive, Motor, and Behavioral Functioning in 10-Year-Old Extremely Preterm Children. AB - The association of hand preference (left, mixed, and right) with cognitive, academic, motor, and behavioral function was evaluated in 864 extremely preterm children at 10 years of age. Left-handed and right-handed children performed similarly but mixed-handed children had greater odds of functional deficits across domains than right-handed children. PMID- 29336798 TI - Hospital Readmissions in Children with Pulmonary Hypertension: A Multi Institutional Analysis. AB - OBJECTIVE: To assess the rate of and risk factors for 30-day hospital readmission in children with pulmonary hypertension. STUDY DESIGN: The Pediatric Health Information System database was analyzed for patients <=18 years old with pulmonary hypertension (International Classification of Diseases, Ninth Revision, diagnosis codes of 416.0, 416.1, 416.8, or 416.9) admitted from 2005 through 2014. A generalized hierarchical regression model was used to determine significant ORs and 95% CIs associated with 30-day readmission. RESULTS: A total of 13580 patients met inclusion criteria (median age 1.7 years [IQR 0.3-8.7], 45.3% with congenital heart disease). Admissions increased 4-fold throughout the study period. Associated hospital charges increased from $119 million in 2004 to $929 million in 2014. During initial admission, 57.4% of patients required admission to the intensive care unit, and 48.2% required mechanical ventilation. The 30-day readmission rate was 26.3%. Mortality during readmission was 4.2%. Factors increasing odds of readmission included a lower hospital volume of pulmonary hypertension admissions (1.41 [1.23-1.57], P < .001) and having public insurance (1.26 [1.16-1.38], P < .001). Decreased odds of readmission were associated with older age and the presence of congenital heart disease (0.86 [0.79-0.93], P < .001). CONCLUSIONS: The pediatric pulmonary hypertension population carries significant morbidity, as reflected by a high use of intensive care unit resources and a high 30-day readmission rate. Younger patients and those with public insurance represent particularly at-risk groups. PMID- 29336800 TI - Oral Granular Cell Tumor Mimicking a Giant Sialolith in a Child. PMID- 29336799 TI - Access to High Pediatric-Readiness Emergency Care in the United States. AB - OBJECTIVE: To determine the geographic accessibility of emergency departments (EDs) with high pediatric readiness by assessing the percentage of US children living within a 30-minute drive time of an ED with high pediatric readiness, as defined by collaboratively developed published guidelines. STUDY DESIGN: In this cross-sectional analysis, we examined geographic access to an ED with high pediatric readiness among US children. Pediatric readiness was assessed using the weighted pediatric readiness score (WPRS) of US hospitals based on the 2013 National Pediatric Readiness Project (NPRP) survey. A WPRS of 100 indicates that the ED meets the essential guidelines for pediatric readiness. Using estimated drive time from ZIP code centroids, we determined the proportions of US children living within a 30-minute drive time of an ED with a WPRS of 100 (maximum), 94.3 (90th percentile), and 83.6 (75th percentile). RESULTS: Although 93.7% of children could travel to any ED within 30 minutes, only 33.7% of children could travel to an ED with a WPRS of 100, 55.3% could travel to an ED with a WPRS at or above the 90th percentile, and 70.2% could travel to an ED with a WPRS at or above the 75th percentile. Among children within a 30-minute drive of an ED with the maximum WPRS, 90.9% lived closer to at least 1 alternative ED with a WPRS below the maximum. Access varied across census divisions, ranging from 14.9% of children in the East South Center to 56.2% in the Mid-Atlantic for EDs scoring a maximum WPRS. CONCLUSION: A significant proportion of US children do not have timely access to EDs with high pediatric readiness. PMID- 29336801 TI - Fixing nature's mistakes on the aortic valve: Will the normal form ensure normal function in the long term? PMID- 29336802 TI - Resection of pleural implants in patients with lung cancer should remain the exception rather than the rule. PMID- 29336803 TI - Postoperative cognitive dysfunction related to Alzheimer disease? PMID- 29336804 TI - Primum non nocere-it takes a village. PMID- 29336805 TI - Height supersedes weight: Height-diameter indexing keeps you ahead of the game. PMID- 29336806 TI - Variety is the spice of life: One-stage or two-stage repair of extensive chronic thoracic aortic dissection. PMID- 29336807 TI - Functionalized metal-organic framework nanocomposites for dispersive solid phase extraction and enantioselective capture of chiral drug intermediates. AB - The facile preparation, characterization and application of a novel magnetic graphene oxide- metal organic framework [Zn2(d-Cam)2(4, 4'-bpy)]n (MGO-ZnCB) as a sorbent for fast, simple and enantioselective capture of chiral drug intermediates are presented in this paper. The MGO-ZnCB nanocomposite, developed by encapsulating MGO nanoparticles into the homochiral metal organic framework of ZnCB, can integrate the advantages from each component endowing the hybrids with improved synergystic effects. The enantioselective performance of MGO-ZnCB was evaluated by dispersive magnetic nanoparticle solid phase extraction (d-MNSPE) of 1, 1'-bi-2-naphthol (BN) and 2, 2'-furoin (Furoin) racemic solutions. Due to the excellent dispersive capability, high stability, relatively larger saturation magnetization and distinct enrichment capacity of MGO-ZnCB, the d-MNSPE method provids good enantioselective separation of these compounds with enantiomeric excess (ee) values as high as 74.8% and 57.4%, respectively. The entire process with BN or Furoin can be completed within 3 min or less. After washing with methanol, the host MGO-ZnCB can be easily recycled and reused six times without any apparent loss of performance. Furthermore, the adsorbed BN and Furoin in nanodomains of the MGO-ZnCB composite were directly investigated for the first time by atomic force microscopy-infrared (AFM-IR) technique. PMID- 29336808 TI - Miniaturized solid-phase extraction of macrolide antibiotics in honey and bovine milk using mesoporous MCM-41 silica as sorbent. AB - A simple and effective method of miniaturized solid-phase extraction (mini-SPE) was developed for the simultaneous purification and enrichment of macrolide antibiotics (MACs) (i.e. azithromycin, clarithromycin, erythromycin, lincomycin and roxithromycin) from honey and skim milk. Mesoporous MCM-41 silica was synthesized and used as sorbent in mini-SPE. Several key parameters affecting the performance of mini-SPE procedure were thoroughly investigated, including sorbent materials, amount of sorbent and elution solvents. Under the optimized condition, satisfactory linearity (r2 > 0.99), acceptable precision (RSDs, 0.3-7.1%), high sensitivity (limit of detection in the range of 0.01-0.76 MUg/kg), and good recoveries (83.21-105.34%) were obtained. With distinct advantages of simplicity, reliability and minimal sample requirement, the proposed mini-SPE procedure coupled with ultrahigh performance liquid chromatography and quadrupole time-of flight tandem mass spectrometry could become an alternative tool to analyze the residues of MACs in complex food matrixes. PMID- 29336809 TI - Screening of break point cluster region Abelson tyrosine kinase inhibitors by capillary electrophoresis. AB - In the present study, a capillary electrophoresis (CE) method was developed for screening of inhibitors against the break point cluster region Abelson tyrosine kinase (BCR-ABL). The screening method was established by using 5 carboxyfluorescein labeled peptide substrate of BCR-ABL (F-ABLS), a known BCR-ABL tyrosine kinase inhibitor dasatinib, as well as a small chemical library consisting of 37 natural products. Thus, the inhibition of BCL-ABL kinase by small inhibitors was assayed by a CE system equipped with the laser induced fluorescence detector. The yield of phosphorylated product could be precisely measured through the separation by CE. The method is competent for enzymatic inhibition assay as well as the measurement of the inhibition kinetics. For screening BCR-ABL tyrosine kinase inhibitors, the hits were readily identified once the peak area of the phosphorylated products was reduced in comparison with the negative control. By taking the advantage of the screening method, luteolin and epicatechin gallate were discovered as the new BCR-ABL inhibitors. PMID- 29336811 TI - Discussion. PMID- 29336810 TI - Does adjuvant radiation provide any survival benefit after an R1 resections for pancreatic cancer? AB - BACKGROUND: The benefit of adding external beam radiation to adjuvant chemotherapy in patients that have undergone a margin positive resection for early stage, pancreatic ductal adenocarcinoma has not been determined definitively. METHODS: The National Cancer Data Base was queried to evaluate the utility of adjuvant radiation in patients with pathologic stage I-II pancreatic ductal adenocarcinoma who underwent upfront pancreatoduodenectomy with a positive margin (margin positive resection) between 2004 and 2013. RESULTS: In the study, 1,392 patients met inclusion criteria, of whom 263 (18.9%) were lymph node negative (pathologic stages IA, IB, IIA) and 1,129 (81.1%) were node-positive (pathologic stage IIB); 938 (67.4%) patients received adjuvant radiation and chemotherapy, while 454 (32.6%) received adjuvant chemotherapy alone. Cox modeling stratified by nodal status demonstrated the benefit of radiation to be statistically significant only in node positive patients (hazard ratio 0.81, 95% confidence interval, 0.71-0.93). Node-positive patients receiving adjuvant radiation and chemotherapy had an adjusted median survival of 17.5 months vs 15.2 months for those receiving adjuvant chemotherapy alone (P=.003). In patients who had negative nodes, there was no difference in overall survival with radiation (22.5 vs 23.6 months, P=.511). CONCLUSION: Addition of radiation to adjuvant chemotherapy after a margin positive resection confers a survival benefit albeit limited (about 2 months) in patients with node-positive pancreatic head cancer. (Surgery 2017;160:XXX-XXX.). PMID- 29336812 TI - Enhancing surgical performance by adopting expert musicians' practice and performance strategies. AB - BACKGROUND: Surgery is a performing art-each surgical procedure is a live performance that has immediate and irreversible consequences for both the performer and the audience. Surgeons operate with surgical instruments, whereas musicians perform with musical instruments. Both perform in high-stress, high risk work environments, where small errors in motor performance or judgment can have immediate negative consequences. While there is abundant literature on musical performance and their impact on outcome, little similar research has been published in the field of surgery. We aimed at identifying expert musicians' practice and performance strategies that may aid surgeons to enhance their surgical performance. METHODS: In the study, 82 relevant English-language articles from 1974 to 2017 matched applicable search terms. Nominal Group Technique was applied to identify 5 key domains that comprise important parallels between surgical and expert musical performance. RESULTS: The 5 key domains identified were: (1) extensive training and deliberate practice, (2) dexterity and ambidexterity, (3) performance evaluation and competition, (4) performance related injuries, and (5) performance anxiety. We found focused and mindful training in motor performance, not performing immediately after a hiatus from practice, training to improve the precision and responsiveness of the nondominant hand, continuous and critical self-evaluation, training in injury recognition and prevention, and pharmacologic factors to be of utmost importance. CONCLUSION: Critical parallels exist between surgical and expert musical performance that may improve surgical outcomes by adopting musicians' strategies for combating physiological and psychologic performance-related issues. Raising surgeons' awareness for this subject content may improve surgical performance and patient outcomes, as well as help prevent occupational injuries. PMID- 29336813 TI - Recurrence after curative-intent resection of perihilar cholangiocarcinoma: analysis of a large cohort with a close postoperative follow-up approach. AB - BACKGROUND: Although several studies have been conducted on the patterns of recurrence in resected perihilar cholangiocarcinoma, they have many limitations. The aim of this study was to investigate recurrence after resection and to evaluate prognostic factors on the time to recurrence and recurrence-free survival. METHODS: Consecutive patients who underwent curative-intent resection of perihilar cholangiocarcinoma between 2001 and 2012 were reviewed retrospectively. The Cox proportional hazards model was used for multivariable analysis. RESULTS: In the study period, 402 patients underwent resection of perihilar cholangiocarcinoma (R0, n = 340; R1, n = 62). Radial margin positivity (n = 43, 69%) was the most common reason for R1 resection. The median follow-up of survivors was 7.4 years. The cumulative recurrence probability was higher in R1 than in R0 resection (86% vs 57% at 5 years, P < .001). Seventeen R0 patients had a recurrence over 5 years after resection. There was no difference in median survival time after recurrence between R0 and R1 resection (10 vs 7 months). The proportion of isolated locoregional recurrence was higher in R1 than in R0 resection (37% vs 16%, P < .001), whereas the proportion of distant recurrence was similar. In R0 resection, the independent prognostic factors for time to recurrence and recurrence-free survival were microscopic venous invasion and lymph node metastasis. CONCLUSION: More than half of patients with perihilar cholangiocarcinoma experience recurrence after R0 resection. These recurrences occur frequently within 5 years but occasionally after 5 years, which emphasizes the need for close and long-term surveillance. Adjuvant strategies should be considered, especially for patients with nodal metastasis or venous invasion even after R0 resection. PMID- 29336814 TI - Inhibition of Interleukin-10 in the tumor microenvironment can restore mesothelin chimeric antigen receptor T cell activity in pancreatic cancer in vitro. AB - BACKGROUND: Pancreatic cancer cells are known to shield themselves from immunosurveillance by secreting immune inhibitory cytokines such as Interleukin 10. Using mesothelin, a differentiating antigen that is overexpressed in pancreatic cancer, we assessed the negative effect of the tumor microenvironment on chimeric antigen receptor T cell-based immunotherapy and its reversal via depletion of Interleukin-10. METHODS: T cells cultured in pancreatic cancer-cell conditioned medium were transduced with lentiviruses encoding mesothelin-chimeric antigen receptor in the presence or absence of anti-Interleukin-10-blocking antibody. RESULTS: Coculture supernatants of conditioned medium displayed significant inhibition of interferon gamma and granzyme B secretion, both of which are crucial for induction of target cell cytotoxicity. In contrast, this inhibition was restored toward baseline when conditioned medium was Interleukin 10- depleted (p < .05 for both interferon gamma and granzyme B). In addition, we observed a significant decrease in mesothelin-chimeric antigen receptor T cell induced cytotoxicity of BxPC-3 target cells in the presence of conditioned medium. Furthermore, we observed a partial blunting of this inhibition when Interleukin-10 was depleted from the conditioned medium. CONCLUSION: Substantial reversal of tumor-derived immunosuppression may be achieved by blocking Interleukin-10 in the local microenvironment, allowing for more effective cytotoxicity of mesothelin-engrafted chimeric antigen receptor T cells and enhancing the potential for clinical application. PMID- 29336815 TI - Impact of restricted intraoperative fluid infusion on liver dysfunction after portal venous embolization protocols for major hepatectomy. PMID- 29336816 TI - Traumatic thoracic rib cage hernias: Operative management and proposal for a new anatomic-based grading system. AB - BACKGROUND: Traumatic Rib Cage Hernias (TRCH) requiring operative repair are rare and there is currently no literature to guiding surgical management. METHODS: Perioperative review of TRCH over 32 years. Five operative grades were developed based on extent of tissue/bone damage, size, and location. RESULTS: Twenty-four patients (20 blunt, 4 penetrating) underwent operative repair. Lung was the herniated organ in 88% with a median of 4 rib fractures and average size of 60.25 cm. Types of operation were well clustered by assigned TRCH grade. The majority required mesh (75%) and/or rib plating (79%). Complex tissue flap reconstruction was required in 10%. Full range-of-motion was maintained in 88% with79% returning to pre-injury activity levels. Five patients had continued pain at final follow up (mean = 7months). CONCLUSION: The size and degree of injury has important implications in the optimal surgical management of TRCHs. These operative grades effectively direct surgical care for these rare and complex injuries. PMID- 29336817 TI - Neurocognitive assessment in patients with a minor traumatic brain injury and an abnormal initial CT scan: Can cognitive evaluation assist in identifying patients who require surveillance CT brain imaging? AB - BACKGROUND: Evidence for repeat computed tomography (CT) in minor traumatic brain injury (mTBI) patients with intracranial pathology is scarce. The aim of this study was to investigate the utility of clinical cognitive assessment (COG) in defining the need for repeat imaging. METHODS: COG performance was compared with findings on subsequent CT, and need for neurosurgery in mTBI patients (GCS 13-15 and positive CT findings). RESULTS: Of 152 patients, 65.8% received a COG (53.0% passed). Patients with passed COG underwent fewer repeat CT (43.4% vs. 78.7%; p = .001) and had shorter LOS (8.7 vs. 19.5; p < .05). Only 1 patient required neurosurgery after a passed COG. The negative predictive value of a normal COG was 90.6% (95%CI = 81.8%-95.4%). CONCLUSION: mTBI patients with an abnormal index CT who pass COG are less likely to undergo repeat CT head, and rarely require neurosurgery. The COG warrants further investigation to determine its role in omitting repeat head CT. PMID- 29336818 TI - Discussion of "Breast cancer in women under 50: Most are not high risk". PMID- 29336819 TI - Identification of a Corticohabenular Circuit Regulating Socially Directed Behavior. AB - BACKGROUND: The prefrontal cortex (PFC) has been implicated in the pathophysiology of social dysfunction, but the specific circuit partners mediating PFC function in health and disease are unclear. METHODS: The excitatory designer receptor exclusively activated by designer drugs (DREADD) hM3Dq was used to induce PFC activation during social behavior measured in the three-chamber sociability assay (rats/mice). Functional magnetic resonance imaging was combined with hM3Dq-mediated PFC activation to identify novel nodes in the "social brain" in a hypothesis-free manner. In multiplexed DREADD experiments, hM3Dq and the inhibitory KORDi were used to bidirectionally modulate PFC activity and measure social behavior and global functional magnetic resonance imaging signature. To characterize the functional role of specific nodes identified in this functional magnetic resonance imaging screen, we used anterograde and retrograde tracers, optogenetic and DREADD-assisted circuit mapping, and circuit behavioral experiments. RESULTS: PFC activation suppressed social behavior and modulated activity in a number of regions involved in emotional behavior. Bidirectional modulation of PFC activity further refined this subset of brain regions and identified the habenula as a node robustly correlated with PFC activity. Furthermore, we showed that the lateral habenula (LHb) receives direct synaptic input from the PFC and that activation of LHb neurons or the PFC inputs to the LHb suppresses social preference. Finally, we demonstrated that LHb inhibition can prevent the social deficits induced by PFC activation. CONCLUSIONS: The LHb is thought to provide reward-related contextual information to the mesolimbic reward system known to be involved in social behavior. Thus, PFC projections to the LHb may represent an important part of descending PFC pathways that control social behavior. PMID- 29336820 TI - Micro-CT and micro-FE analysis of pedicle screw fixation under different loading conditions. AB - Anchorage of pedicle screw instrumentation in the elderly spine with poor bone quality remains challenging. In this study, micro finite element (uFE) models were used to assess the specific influence of screw design and the relative contribution of local bone density to fixation mechanics. These were created from micro computer tomography (uCT) scans of vertebras implanted with two types of pedicle screws, including a full region-or-interest of 10 mm radius around each screw, as well as submodels for the pedicle and inner trabecular bone of the vertebral body. The local bone volume fraction (BV/TV) calculated from the uCT scans around different regions of the screw (pedicle, inner trabecular region of the vertebral body) were then related to the predicted stiffness in simulated pull-out tests as well as to the experimental pull-out and torsional fixation properties mechanically measured on the corresponding specimens. Results show that predicted stiffness correlated excellently with experimental pull-out strength (R2 > 0.92, p < .043), better than regional BV/TV alone (R2 = 0.79, p = .003). They also show that correlations between fixation properties and BV/TV were increased when accounting only for the pedicle zone (R2 = 0.66-0.94, p <= .032), but with weaker correlations for torsional loads (R2 < 0.10). Our analyses highlight the role of local density in the pedicle zone on the fixation stiffness and strength of pedicle screws when pull-out loads are involved, but that local apparent bone density alone may not be sufficient to explain resistance in torsion. PMID- 29336821 TI - Validation of radiostereometric analysis in six degrees of freedom for use with reverse total shoulder arthroplasty. AB - A phantom study was conducted to determine bias in motion and bias at zero motion of radiostereometric analysis (RSA) for evaluating implant relative displacement in reverse total shoulder arthroplasty (RTSA). A Sawbones shoulder phantom was fitted with a RTSA implant set and 13 tantalum markers. The model was fixed to a manual micrometer, providing controlled movements though fifteen known increments in translation and twelve increments in rotation (0.02-5.00 mm and 0.1-6.0 degrees ), along each translation and rotation axis. Movement between the glenoid and humerus was assessed using beads vs. beads (B/B), model vs. beads (M/B), and model vs. model (M/M) measurement methods in a model-based RSA environment. Bias in motion and bias at zero motion were defined as the difference between measured and accepted reference values, and the difference between double examinations with a theoretical displacement of zero, respectively. Bias in motion ranged from 0.054 +/- 0.010 to 0.129 +/- 0.014 mm and 0.076 +/- 0.025 to 0.126 +/- 0.025 degrees (B/B), 0.023 +/- 0.009 to 0.126 +/- 0.016 mm and 0.111 +/- 0.033 to 0.794 +/- 0.251 degrees (M/B), and 0.029 +/- 0.010 to 0.135 +/- 0.030 mm and 0.243 +/- 0.088 to 0.384 +/- 0.153 degrees (M/M). Bias at zero motion ranged from 0.120 to 0.156 mm and 0.075 to 0.206 degrees (B/B), 0.074 to 0.149 mm and 0.067 to 1.953 degrees (M/B), and 0.069 to 0.259 mm and 0.284 to 1.273 degrees (M/M). This is the first RSA for RTSA study, with results comparable to those validating the use of RSA for hip and knee arthroplasties (accepted as 0.05-0.50 mm and 0.15-1.15 degrees ), justifying the potential use of RSA as a tool for measuring implant displacement in the shoulder. PMID- 29336822 TI - Role of Color Doppler Ultrasound in the Diagnosis of Idiopathic Facial Aseptic Granuloma. PMID- 29336823 TI - A reliable and easy to transport quality control method for chlamydia and gonorrhoea molecular point of care testing. AB - Quality control (QC) is an essential component of point-of-care testing programs. In the context of a randomised-controlled trial (TTANGO) using GeneXpert (Xpert) Chlamydia trachomatis and Neisseria gonorrhoeae (CT/NG) point-of-care testing in remote areas of Australia, we aimed to develop and utilise a stable positive control material. Bacterial cultures of CT and NG were resuspended together to provide cycle threshold (Ct) values of approximately 25 cycles for both CT and NG when tested on the Xpert CT/NG assay. These positive control suspensions were dried in aliquots, heat inactivated, and then provided to 12 participating health services as research-only QC samples in kit form. At each service, a QC sample was resuspended and tested each month on the Xpert. QC results, including Xpert Ct values, were analysed from each site over 30 months and we calculated costs per QC sample. Overall, at 12 health services there were 89 QC samples tested (average of 8 tests per site per year). Mean Ct values for the 89 controls samples were 25.25 cycles (SD = 1.15) for CT, 24.04 cycles (SD = 1.400) for one NG target and 23.35 cycles (SD = 1.55) for the other NG target. No significant differences in Ct value for CT or NG controls were observed over a trial period of 30 months. Positive QC samples for research use in a trial of a molecular point-of-care assay were inexpensive to produce and stable when stored at 2-8 degrees C. For routine use, additional requirements such as meeting National Association of Testing Authority (NATA) regulations and Therapeutic Goods Administration (TGA) approval will need to be achieved. PMID- 29336824 TI - Trait-based characterization of species transported on Japanese tsunami marine debris: Effect of prior invasion history on trait distribution. AB - Nearly 300 coastal marine species collected from >630 debris items from the 2011 Great East Japan earthquake and tsunami have landed alive along the North American Pacific coast and the Hawaiian Archipelago. We synthesized life history, environmental, and distributional traits for 103 of these species and compared species with (n=30) and without (n=62) known invasion histories. The species represent 12 phyla, and Mollusca, Crustacea, and Bryozoa accounted for 71 of the 103 species. The majority are native to the Northwest Pacific and the Central Indo-Pacific. Species with known invasion history were more common on artificial and hardpan substrates, in temperate reef, fouling, and flotsam habitats, at subtropical and tropical temperatures, and exhibited greater salinity tolerance than species with no prior invasion history. Thirty-five Japanese tsunami marine species without prior invasion history overlapped in ordination trait space with known invaders, indicating a subset of species in this novel assemblage that possess traits similar to species with known invasion history. PMID- 29336825 TI - Detecting the occurrence of indigenous and non-indigenous megafauna through fishermen knowledge: A complementary tool to coastal and port surveys. AB - Marine bioinvasions and other rapid biodiversity changes require today integrating existing monitoring tools with other complementary detection strategies to provide a more efficient management. Here we explored the efficacy of fishermen observations and traditional port surveys to effectively track the occurrence of both indigenous and non-indigenous megafauna in the Adriatic Sea. This consisted mainly of mobile taxa such as fishes, crustaceans and molluscs. Port surveys using traps and nets within 10 major Adriatic harbours, were compared with the information obtained from 153 interviews with local fishermen. Information gathered by traps and nets varied significantly and generally resulted of limited efficacy in exotic species detection. Interviews allowed tracking the occurrence of new species through time and space, providing complementary knowledge at the low cost. This combined approach improves our capability of being informed on the arrival of species of different origin, providing a more rational, improved basis for environmental management and decision making. PMID- 29336827 TI - Significant changes in CMS pharmacy services F-Tags for long-term care facilities. PMID- 29336828 TI - What is new in the world of immunizations for 2018. PMID- 29336829 TI - What don't we know about bladder control and why does it matter? An AGS-NIA collaborative conference sought answers - and progress. PMID- 29336830 TI - Interdisciplinary development and implementation of a dementia skills training program in a VA community living center: a pilot study. AB - This pilot study investigates the usefulness of a dementia care training program developed by an interdisciplinary team to address problem behaviors associated with dementia. Staff members of a VA Community Living Center completed an 8-hour workshop covering fundamental knowledge about dementia and instruction in skills to use with patients through video, lecture, and role-plays. Measures on dementia knowledge and perceived self-efficacy were completed by staff members before and after the workshop. Results revealed increases in self-efficacy and knowledge, with particular gains in general knowledge of dementia and communicating with patients. Younger staff members scored higher on tests of knowledge at pre- and post-test, whereas staff members with more years of work experience rated their self-efficacy higher at post-test only. There was an associated decrease in assaultive behaviors by patients with dementia in the year this workshop was implemented. Results highlight the benefit of interdisciplinary collaboration in developing educational content and the value of providing staff training on managing dementia-related behaviors. Adjustments to this training program are discussed. PMID- 29336831 TI - Ultraviolet radiation significantly enhances the molecular response to dispersant and sweet crude oil exposure in Nematostella vectensis. AB - Estuarine organisms are subjected to combinations of anthropogenic and natural stressors, which together can reduce an organisms' ability to respond to either stress or can potentiate or synergize the cellular impacts for individual stressors. Nematostella vectensis (starlet sea anemone) is a useful model for investigating novel and evolutionarily conserved cellular and molecular responses to environmental stress. Using RNA-seq, we assessed global changes in gene expression in Nematostella in response to dispersant and/or sweet crude oil exposure alone or combined with ultraviolet radiation (UV). A total of 110 transcripts were differentially expressed by dispersant and/or crude oil exposure, primarily dominated by the down-regulation of 74 unique transcripts in the dispersant treatment. In contrast, UV exposure alone or combined with dispersant and/or oil resulted in the differential expression of 1133 transcripts, of which 436 were shared between all four treatment combinations. Most significant was the differential expression of 531 transcripts unique to one or more of the combined UV/chemical exposures. Main categories of genes affected by one or more of the treatments included enzymes involved in xenobiotic metabolism and transport, DNA repair enzymes, and general stress response genes conserved among vertebrates and invertebrates. However, the most interesting observation was the induction of several transcripts indicating de novo synthesis of mycosporine-like amino acids and other novel cellular antioxidants. Together, our data suggest that the toxicity of oil and/or dispersant and the complexity of the molecular response are significantly enhanced by UV exposure, which may co occur for shallow water species like Nematostella. PMID- 29336832 TI - Anticoagulation in neonatal ECMO. AB - Despite advances made in technology and neonatal intensive care, the rate of hemorrhagic and thrombotic complications remains unacceptably high in patients undergoing extracorporeal membrane oxygenation (ECMO) and these complications negatively impact morbidity and mortality. Management of anticoagulation in neonates who have a developing hemostatic system is vastly different from adults and poses unique challenges. Variation in practice among ECMO centers regarding anticoagulation monitoring and titration reflects the lack of high-quality evidence. Novel anticoagulants may offer alternative options, though their impact on outcomes is yet to be demonstrated. In this chapter, we review the hemostatic alterations that occur during ECMO with a focus on current approaches and limitations to anticoagulation titration in neonates on ECMO. PMID- 29336833 TI - Education for ECMO providers: Using education science to bridge the gap between clinical and educational expertise. AB - A well-organized educational curriculum for the training of both novice and experienced ECMO providers is critical for the continued function of an institutional ECMO program. ELSO provides guidance for the education for ECMO specialists, physicians and staff, which incorporates "traditional" instructor centered educational methods, such as didactic lectures and technical skill training. Novel research suggests utilization of strategies that align with principles of adult learning to promote active learner involvement and reflection on how the material can be applied to understand existing and new constructs may be more effective. Some examples include the "flipped classroom," e-learning, simulation, and interprofessional education. These methodologies have been shown to improve active participation, which can be related to improvements in understanding and long-term retention. A novel framework for ECMO training is considered. Challenges in assessment and credentialing are also discussed. PMID- 29336834 TI - An overview of medical ECMO for neonates. AB - Extracorporeal membrane oxygenation (ECMO), a life-saving therapy for respiratory and cardiac failure, was first used in neonates in the 1970s. The indications and criteria for ECMO have changed over the years, but it continues to be an important option for those who have failed other medical therapies. Since the Extracorporeal Life Support Organization (ELSO) Registry was established in 1989, more than 29,900 neonates have been placed on ECMO for respiratory failure, with 84% surviving their ECMO course, and 73% surviving to discharge or transfer. In this chapter, we will review the basics of ECMO, patient characteristics and criteria, patient management, ECMO complications, special uses of neonatal ECMO, and patient outcomes. PMID- 29336836 TI - Current status of tissue engineering applied to bladder reconstruction in humans. AB - CONTEXT AND OBJECTIVE: Bladder reconstruction is performed to replace or expand the bladder. The intestine is used in standard clinical practice for tissue in this procedure. The complications of bladder reconstruction range from those of intestinal resection to those resulting from the continuous contact of urine with tissue not prepared for this contact. In this article, we describe and classify the various biomaterials and cell cultures used in bladder tissue engineering and reviews the studies performed with humans. ACQUISITION OF EVIDENCE: We conducted a review of literature published in the PubMed database between 1950 and 2017, following the principles of the PRISM declaration. SYNTHESIS OF THE EVIDENCE: Numerous in vitro and animal model studies have been conducted, but only 18 experiments have been performed with humans, with a total of 169 patients. The current evidence suggests that an acellular matrix, a synthetic polymer with urothelial and autologous smooth muscle cells attached in vitro or stem cells would be the most practical approach for experimental bladder reconstruction. CONCLUSIONS: Bladder replacement or expansion without using intestinal tissue is still a challenge, despite progress in the manufacture of biomaterials and the development of cell therapy. Well-designed studies with large numbers of patients and long follow-up times are needed to establish an effective clinical translation and standardisation of the check-up functional tests. PMID- 29336835 TI - Standard whole prostate gland radiotherapy with and without lesion boost in prostate cancer: Toxicity in the FLAME randomized controlled trial. AB - PURPOSE: To compare toxicity rates in patients with localized prostate cancer treated with standard fractionated external beam radiotherapy (EBRT) with or without an additional integrated boost to the macroscopically visible tumour. MATERIAL AND METHODS: FLAME is a phase 3 multicentre RCT (NCT01168479) of patients with pathologically confirmed localized intermediate or high-risk prostate cancer. The standard treatment arm (n = 287) received a dose to the entire prostate of 77 Gy in 35 fractions. The dose-escalated treatment arm (n = 284) received 77 Gy in 35 fractions to the entire prostate, with an integrated boost up to 95 Gy to the multi-parametric MRI-defined (macroscopic) tumour within the prostate. Treatment related toxicity was measured using the CTCAE version 3.0. Grade 2 or worse GU or GI events up to two years were compared between groups by presenting proportions and by Generalized Estimating Equations (GEE) analyses for repeated measures. RESULTS: Ninety percent of the 571 men randomly assigned between September 2009 and January 2015 had high-risk disease (Ash 2000), of whom nearly 66% were prescribed hormonal therapy up to three years. Median follow-up was 55 months at the time of this analysis. Toxicity prevalence rates for both GI and GU increased until the end of treatment and regressed thereafter, with no obvious differences across treatment groups. Late cumulative GI toxicity rates were 11.1% and 10.2% for the standard and dose-escalated group, respectively. These rates were 22.6% and 27.1% for GU toxicity. GEE analyses showed that both GU toxicity and GI toxicity (>=grade 2) up to two years after treatment were similar between arms (OR 1.02 95%CI 0.78-1.33p = 0.81 and (OR 1.19 95%CI 0.82-1.73p = 0.38), respectively. CONCLUSIONS: In intermediate- and high risk prostate cancer patients, focal dose escalation integrated with standard EBRT did not result in an increase in GU and GI toxicity when compared to the standard treatment up to two years after treatment. This suggests that the described focal dose escalation technique is safe and feasible. PMID- 29336837 TI - Effectiveness of definitive radiotherapy for squamous cell carcinoma of the vulva with gross inguinal lymphadenopathy. AB - OBJECTIVE: To evaluate the effectiveness and long-term side effects of definitive groin radiotherapy for vulvar cancer with grossly involved inguinal lymph nodes. METHODS: The records of 407 women with vulvar squamous cell carcinoma treated with radiotherapy at one institution during 1992-2014 were reviewed to identify patients who had radiographic or histologic evidence of grossly involved inguinal lymph nodes. Patients with lymphadenectomy before radiotherapy and patients treated for recurrent disease were excluded. Actuarial incidences of vulvar, inguinal, and distant recurrences, the relationship between vulvar recurrence and inguinal recurrence, and overall survival were analyzed using the Kaplan-Meier method. RESULTS: Thirty-three patients were identified. The median age at diagnosis was 64 years. The median long-axis radiographic diameter of the largest inguinal lymph node or lymph node mass was 2.5 cm (range, 1.4-8.7). Sixteen patients (48%) also had evidence of pelvic lymph node metastasis. The median radiation dose delivered to grossly involved nodes was 66.0 Gy (range, 60.0 70.0). The 3-year actuarial incidences of vulvar, groin, and distant recurrences were 24.2%, 17.7%, and 30.3%, respectively. With a median follow-up time of 28 months (range, 2-196), four patients (12%) had groin recurrence, of whom three also had vulvar recurrence. There were few major late adverse effects of regional radiotherapy. The 3-year overall survival rate was 51%. CONCLUSIONS: High-dose volume-directed radiotherapy achieves a high rate of local control with low risk of serious long-term toxic effects in patients with vulvar squamous cell carcinoma and grossly involved inguinal lymph nodes. PMID- 29336838 TI - Pediatric Concussion Update: What ED Nurses Should Know After "Humpty Dumpty" Falls. PMID- 29336839 TI - Effect of thymectomy on refractory autoimmune status epilepticus. AB - Refractory status epilepticus (RSE) is an increasingly recognized manifestation of autoimmune encephalitis, which can occur either as a paraneoplastic or non paraneoplastic disorder. The effect of tumor removal in paraneoplastic status epilepticus has never been explored systematically, although early tumor treatment is usually recommended. In this study, we report clinical, pathological and EEG findings of a patient who developed RSE as one of multiple paraneoplastic manifestations of thymoma and the effect of thymectomy on seizure outcome. To our knowledge, this is the first report of successful treatment of RSE with tumor removal in paraneoplastic encephalitis. PMID- 29336841 TI - Economic impact of the new oral treatments for multiple sclerosis. AB - INTRODUCTION: Multiple sclerosis (MS) is a chronic disease affecting the central nervous system and is characterised by inflammation, demyelination, gliosis, and axonal damage. The introduction of dimethyl fumarate and teriflunomide has led to an increase in the number of alternative first-line therapies for MS. The objective of this study was to evaluate the economic impact of the incorporation of new oral therapies at the reference unit (CSUR) at Hospital Universitario Puerta de Hierro Majadahonda. MATERIALS AND METHODS: We performed a retrospective observational study including patients diagnosed with MS, who underwent treatment with disease-modifying drugs in 2015 and were followed up for a minimum mean time of one year. Data were collected from patients' electronic clinical histories and the pharmacy service's programme for dispensing drugs to outpatients. RESULTS: Evaluating the cost of changing 125 patients' treatment from other drugs to dimethyl fumarate and teriflunomide, and comparing this with the cost that would have resulted from maintaining their previous treatment, demonstrated a total saving of ?169,107.31 over the study period. CONCLUSIONS: In addition to contributing new therapeutic alternatives, dimethyl fumarate and teriflunomide produced an economic saving in MS treatment at our hospital. PMID- 29336840 TI - Heterozygous TYROBP deletion (PLOSLFIN) is not a strong risk factor for cognitive impairment. AB - Biallelic loss-of-function mutations in TYROBP and TREM2 cause a rare disease that resembles early-onset frontotemporal dementia with bone lesions called polycystic lipomembranous osteodysplasia with sclerosing leukoencephalopathy (PLOSL). Some PLOSL-causing variants in TREM2 have also been associated with Alzheimer's disease when heterozygous. Here, we studied the PLOSLFINTYROBP deletion that covers 4 of the gene's 5 exons. We genotyped 3220 older Finns (mean age 79, range 58-104) and found 11 deletion carriers (mean age 78, range 60-94). The carrier prevalence was 0.0034 (1 in 293) that matches previous findings in younger cohorts suggesting no significant early mortality. By comparing Mini Mental State Examination (MMSE) scores and diagnoses of dementia, we did not find any significant differences between TYROBP deletion carriers and noncarriers (all p-values >0.5). Neuropathological analysis of 2 deletion carriers (aged 89 and 94 years) demonstrated only minimal beta amyloid pathology (Consortium to Establish a Registry for Alzheimer's Disease (CERAD) score 0). Collectively these results suggest that heterozygous carriership of the TYROBP deletion is not a major risk factor of cognitive impairment. PMID- 29336842 TI - Immunohistochemical localization of angiotensin AT1 receptors in the rat carotid body. AB - The carotid body (CB) is a major peripheral arterial chemoreceptor that initiates respiratory and cardiovascular adjustments to maintain homeostasis. Recent evidence suggests that circulating or locally produced hormones like angiotensin II acting via AT1 receptors modulate its activity in a paracrine-autocrine manner. The aim of this study was to examine the immunohistochemical localization of AT1 receptor in the CB of adult rats and to compare its expression in vehicle treated animals, and after the long-term application of its selective blocker losartan. Immunohistochemistry revealed that a subset of CB glomeruli and the vast majority of neurons in the adjacent superior cervical ganglion (SCG) were strongly AT1 receptor-immunoreactive. In the CB immunostaining was observed in the chemosensory glomus cells typically aggregated in cell clusters while the nerve fibers in-between and large capillaries around them were immunonegative. Exogenous administration of losartan for a prolonged time significantly reduces the intensity of AT1 receptor immunostaining in the CB glomus cells and SCG neurons. Our results show that AT1 receptors are largely expressed in the rat CB under physiological conditions, and their expression is down-regulated by losartan treatment. PMID- 29336843 TI - Neuroprotective effects of quercetin 4'-O-beta-d-diglucoside on human striatal precursor cells in nutrient deprivation condition. AB - Several investigations have demonstrated neuroprotective effects of quercetin, a polyphenol widely present in nature, against neurotoxic chemicals, as well as in neuronal injury/neurodegenerative disease models. Most of these studies have been performed with quercetin aglycone and its metabolites, while scanty data are available on its glycosides. This study is aimed at investigating the neuroprotective effects of quercetin 3,4'-O-beta-d-diglucoside (Q3,4'dG), isolated from the bulbs of the white cultivar (Allium cepa L.), using an in vitro model of human striatal precursor cells (HSPs), a primary culture isolated from the striatal primordium and previously characterized. To study the effect of Q3,4'dG on cell survival, HSPs were exposed to nutrient deprivation created by replacing culture medium with phosphate buffer saline (PBS). Our findings showed that Q3,4'dG treatment significantly promoted cell survival and strongly decreased apoptosis induced by nutrient deprivation, as evaluated by cell proliferation/death analyses. In addition, since the adhesive capacities of cells are essential for cell survival, the expression of some adhesion molecules, such as pancadherin and focal adhesion kinase, was evaluated. Interestingly, PBS exposure significantly decreased the expression of both molecules, while in the presence of Q3,4'dG this effect was prevented. This study provides evidence of a neuroprotective role exerted by Q3,4'dG and suggests its possible implication in sustaining neuronal survival for prevention and treatment of neurodegenerative disorders. PMID- 29336844 TI - Detecting and Avoiding Problems When Using the Cre-lox System. AB - The Cre-lox recombination approach is commonly used to generate cell-specific gene inactivation (or activation). We have noticed that the breeding and genotyping sections of papers utilizing Cre-lox techniques are frequently incomplete. While seemingly straightforward, there are important considerations that need to be implemented in the breeding and genotyping methods to prevent the introduction of experimental confounds. Germline recombination and transient expression of Cre recombinase during development are some examples of the complications that can occur, and conventional genotyping methods may fail to identify these events. In this opinion article, we highlight the importance of testing for unexpected recombination events, suggest strategies to isolate and minimize adverse recombination events, and encourage editors and reviewers to expect more definitive statements regarding the validation of genotyping. PMID- 29336845 TI - Defining B Cell Chromatin: Lessons from EBF1. AB - Hematopoiesis is regulated by signals from the microenvironment, transcription factor networks, and changes of the epigenetic landscape. Transcription factors interact with and shape chromatin to allow for lineage- and cell type-specific changes in gene expression. During B lymphopoiesis, epigenetic regulation is observed in multilineage progenitors in which a specific chromatin context is established, at the onset of the B cell differentiation when early B cell factor 1 (EBF1) induces lineage-specific changes in chromatin, during V(D)J recombination and after antigen-driven activation of B cells and terminal differentiation. In this review, we discuss the epigenetic changes underlying B cell differentiation, focusing on the role of transcription factor EBF1 in B cell lineage priming. PMID- 29336846 TI - Sex Differences in Prevalence of Emergency Department Patient Substance Use. AB - PURPOSE: Substance use and misuse is prevalent in emergency department (ED) populations. While the prevalence of substance use and misuse is reported, sex specific trends in ED populations have not been documented. We set out to determine the sex-specific prevalence of ED patient substance use during this current epidemic. METHODS: A retrospective electronic data abstraction tool, developed for quality-improvement purposes, was used to assess ED visits in 3 hospitals in northeastern Pennsylvania. All patients with ED diagnosis codes for substance use F10.000 through F 19.999 (excluding F17 codes for nicotine) were abstracted for network ED visits at all 3 hospitals. Data points included ED clinical enrollment site, primary substance used, sex, date of ED visit, disposition (including left without being seen, left against medical advice, discharged, admitted, and treatment in rehabilitation) for 18 months (January 1, 2016 through July 31, 2017). The categorical parameters of sex, clinical enrollment site, diagnosis, date of ED visit, and disposition status were summarized as a proportion of the subject group. Time series analysis was used to assess trends in substance use and misuse visits by patient sex. FINDINGS: A total of 10,511 patients presented to the EDs during the study time period with a final diagnosis of a substance use-related reason and were included in the analysis. The mean age for these patients was 43.6 (SD 16.4) years, and the majority was male (65.6%, n = 6900). The most common substance in the final diagnosis for the ED visit was alcohol (54.3%; 95% CI, 53.3-55.2), followed by opioids (19.2%; 95% CI, 18.4-19.9) and cannabis (14.4%; 95% CI, 13.7-15.0). Females tended to be younger than males (42.4 years vs 44.3 years; P < 0.001), and were more likely to be discharged after the ED visit than males (36.1% vs 32.3%; P < 0.001). When exploring differences in age by sex and substance, males with a final diagnosis including alcohol- and cannabis-related issues were older than females, whereas females diagnosed with opioid-related reasons were older than males (41.3 vs 38.9 years; P < 0.001). IMPLICATIONS: There are sex-specific differences in prevalence of patients presenting with substance use in the ED setting. PMID- 29336847 TI - Frequent contamination of nursing scrubs is associated with specific care activities. AB - BACKGROUND: The objective of this article is to assess health care worker (HCW) and patient care factors associated with bacterial contamination of scrubs. METHODS: We performed a cohort study of critical care HCWs. Participants were given 4 sets of new scrubs; each set was sampled 8 times during the 8-month study period on random days in the last 4 hours of the shift. Total colony counts and presence of prespecified pathogenic bacteria were assessed. Generalized estimating equation was used to identify factors associated with contamination. RESULTS: There were 720 samples obtained from 90 HCWs; 30% of samples were contaminated with pathogenic bacteria. Multivariate analysis showed that providing care for patients with wounds (odds ratio [OR], 1.75; 95% confidence interval [CI], 1.17-2.62; P < .01) or giving a bath (OR, 1.46; 95% CI, 0.96-2.22; P = .07) was associated with higher odds of scrub contamination. A second model showed the average log colony count of bacterial contamination of scrubs was higher when a bath was given (log colony count difference, 0.21; P = .05) but lower among HCWs assigned to care for at least 1 patient on contact precautions (log colony count difference, 0.28; P < .01). CONCLUSIONS: HCW attire was frequently contaminated with bacteria. Providing care for patients with wounds or giving a bath were associated with scrub contamination by pathogenic bacteria. However, the amount of contamination was lower among HCWs who were assigned to care for patients on contact precautions. PMID- 29336848 TI - Response to a letter to the Editor regarding the prospective evaluation of risk factors and clinical influence of carbapenem resistance in children with gram negative bacteria infection. PMID- 29336849 TI - "Let's not hurry, but let's not waste time": The importance of appropriate management of non-ST-elevation myocardial infarction. PMID- 29336850 TI - Microvenous Reflux in the Skin of Limbs with Superficial Venous Incompetence. AB - This study investigated whether microvenous reflux can be detected in limbs with chronic venous disease using superb microvascular imaging (SMI) and colour Doppler imaging. Participants with venous disease (limbs, n = 26) and without venous disease (limbs, n = 10) were studied. The skin in the medial gaiter region was imaged using both SMI and colour Doppler to identify reflux in the small vessels in response to distal augmentation. The diameters and depths of responsive vessels were measured. In limbs with venous disease, reflux in response to provocation was visualised with SMI in a greater number of vessels (12/26 versus 4/26) and smaller vessels than with colour Doppler. Reflux in the superficial skin veins was demonstrated in one control participant (1/10) using SMI and in none using colour Doppler (0/10). Our study indicates that microvenous reflux is demonstrable in limbs with venous disease and that SMI is more sensitive than colour Doppler. PMID- 29336851 TI - Clinical Utility of Fetal Short-Lag Spatial Coherence Imaging. AB - In this study, we evaluate the clinical utility of fetal short-lag spatial coherence (SLSC) imaging. Previous work has documented significant improvements in image quality with fetal SLSC imaging as quantified by measurements of contrast and contrast-to-noise ratio (CNR). The objective of this study was to examine whether this improved technical efficacy is indicative of the clinical utility of SLSC imaging. Eighteen healthy volunteers in their first and second trimesters of pregnancy were scanned using a modified Siemens SC2000 clinical scanner. Raw channel data were acquired for routinely examined fetal organs and used to generate fully matched raw and post-processed harmonic B-mode and SLSC image sequences, which were subsequently optimized for dynamic range and other imaging parameters by a blinded sonographer. Optimized videos were reviewed in matched B-mode and SLSC pairs by three blinded clinicians who scored each video based on overall quality, target conspicuity and border definition. SLSC imaging was highly favored over conventional imaging with SLSC scoring equal to (28.2 +/- 10.5%) or higher than (63.9 +/- 12.9%) B-mode for video pairs across all examined structures and processing conditions. Multivariate modeling revealed that SLSC imaging is a significant predictor of improved image quality with p <= 0.002. Expert-user scores for image quality support the application of SLSC in fetal ultrasound imaging. PMID- 29336852 TI - Brazilian species of Calliandra Benth. (tribe Ingeae) are nodulated by diverse strains of Paraburkholderia. AB - The Chapada Diamantina in NE of Brazil is a biodiversity hotspot and a center of radiation for many Neotropical legume genera, such as Calliandra and Mimosa. The present study aimed to evaluate nodulation in Calliandra species endemic to various environments, and to characterize the diversity of their symbiotic rhizobia using housekeeping (16S rRNA, recA) and plasmid-borne, symbiosis-related (nifH and nodC) genes. The nodulation ability of selected isolates was assessed. All of the 126 bacterial isolates from 18 Calliandra species collected in six different vegetation types were identified as Paraburkholderia according to their housekeeping and symbiosis gene phylogenies. They were grouped in seven clades in relation to the dominant vegetation type in their native environments. The majority, particularly those from highland "campo rupestre" vegetation, were similar to Paraburkholderia nodosa, but had nodC genes identical to the Mimosa symbiont Paraburkholderia tuberum sv. mimosae. The other smaller groups were related to Paraburkholderia diazotrophica and Paraburkholderia sabiae, and some single strains were not close to any known species. The symbionts of Calliandra spp. in NE Brazil are Paraburkholderia strains closely-related to Mimosa symbionts from the same region. NE Brazil is a reservoir of symbiotic Paraburkholderia that have an affinity for genera in the Mimosoid clade. PMID- 29336853 TI - Updated Guidelines on Infection Prevention in Pediatric Ambulatory Settings. AB - The American Academy of Pediatrics (AAP) recently released updated guidelines on infection control and prevention in pediatric outpatient settings. Key recommendations include mandatory influenza vaccination for all healthcare workers offered free to all staff, expanded guidance on infection control practices for children with cystic fibrosis, guidance on additional prevention procedures during community outbreaks of infectious diseases and recommendations on improving communication between healthcare facilities when referring potentially contagious patients. The new guidelines modify standard precautions by indicating that gloves are not required for diaper changes or some body fluid contact (nasal secretions and tears) in a well child, or when administering vaccines. In addition, efforts should be made to minimize exposure to infections from contaminated toys that cannot be cleaned including plush toys, cleaning toys in waiting rooms each day and encouraging families to bring their own toys or books to visits. PMID- 29336854 TI - Morphologically-directed Raman spectroscopy for forensic soil analysis. AB - Morphologically-directed Raman spectroscopy (MDRS) is a novel yet reliable analytical technique that can be used for a variety of forensic applications, enabling scientists to gain more information from samples than they obtain using more traditional methods. In soil forensics, MDRS delivers particle size distribution and microscopic morphological characteristics for the particles present, and at the same time allows secure mineral identification. In this article, we explore the benefits of utilizing soil in forensic investigations, and demonstrate the value of applying MDRS. Two case studies illustrate the real life potential and applications of this technology. PMID- 29336855 TI - Update on Anemia in ESRD and Earlier Stages of CKD: Core Curriculum 2018. AB - Anemia is a frequent complication during the later stages of chronic kidney disease. When present, it may cause symptoms such as fatigue and shortness of breath. The pathogenesis of anemia in chronic kidney disease is complex, but a central feature is a relative deficit of erythropoietin. New information has elucidated the critical role of the hypoxia-sensing system in mediating erythropoietin synthesis and release. Iron deficiency is a second important factor in the anemia of chronic kidney disease. New insights into the dynamics of iron metabolism have clarified the role of chronic inflammation and hepcidin as key mediators of impaired iron utilization. In this article, we review the epidemiology, pathobiology, clinical evaluation, and treatment of anemia in chronic kidney disease. PMID- 29336856 TI - Evaluation of Kidney Donors: Core Curriculum 2018. AB - Nearly 100,000 patients are waiting for a kidney transplant, yet each year only 11,000 undergo transplantation with a deceased donor kidney. Annual death rates among waitlist registrants range from 5% to 15%; many die before receiving a transplant. Not surprisingly, registrants turn to family and friends to become living kidney donors on their behalf. Living kidney donor selection practices aim to quantify lifetime risk for kidney failure based on a candidate's predonation demographic and health characteristics. It has been established that estimated lifetime risk for kidney failure varies considerably based on predonation comorbid conditions, and as such, it is of paramount importance that potential living donor candidates undergo proper medical, surgical, and psychosocial screening before donation. This installment of AJKD's Core Curriculum in Nephrology provides readers with the tools necessary for proper evaluation of living kidney donor candidates. PMID- 29336857 TI - Identifying Risk Factors for the Development of Stiffness After Revision Total Knee Arthroplasty. AB - BACKGROUND: Although there are several studies concerning manipulation under anesthesia (MUA) after primary total knee arthroplasty, there is a paucity of literature evaluating MUA after revision total knee arthroplasty (rTKA). The purpose of this study was to determine the incidence, timing, and risk factors associated with MUA after rTKA. METHODS: The Humana database was reviewed from 2007 to 2015 for all patients who underwent rTKA. Patients who underwent rTKA followed by ipsilateral MUA were identified. Time to MUA was calculated monthly. Possible risk factors analyzed included preoperative narcotic use, smoking, anxiety and/or depression, diabetes, obesity, age, and sex. Multivariate logistic regression was used to determine odds ratio. RESULTS: In total, 5414 rTKAs were included in the study and 1.7% (n = 96) underwent MUA after surgery. Sixty-nine percent of MUAs occurred within the first 3 months after rTKA. Young patients (<50 years) had significantly higher odds of MUA after rTKA (6.5, P < .0001). No difference in odds of MUA (1.0, P = .85) occurred between males and females. A diagnosis of obesity, diabetes, anxiety and/or depression, previous history of narcotic use, or a history of smoking demonstrated no increased risk of MUA after rTKA. Multivariate logistic regression analysis demonstrated that younger age remained predictive of higher odds of MUA after rTKA. CONCLUSION: In this large multicenter cohort study, 1.7% of patients underwent MUA after rTKA and younger patients were 6 times more likely to have a MUA than patients over 50 years old. These data should serve to help counsel patients regarding their risk of MUA after rTKA. PMID- 29336858 TI - Are Ceramic Bearings Becoming Cost-Effective for All Patients? AB - BACKGROUND: The purpose of this study is to analyze whether the cost for ceramic on-polyethylene (C-PE) and ceramic-on-ceramic (COC) bearings used in primary total hip arthroplasty (THA) was changing over time, and if the cost differential between ceramic bearings and metal-on-polyethylene (M-PE) bearings was approaching the previously published tipping point for cost-effectiveness of $325. METHODS: A total of 245,077 elderly Medicare patients (65+) who underwent primary THA between 2010 and 2015 were identified from the United States Medicare 100% national administrative hospital claims database. The inpatient hospital cost, calculated using cost-to-charge ratios, and hospital payment were analyzed. The differential cost of C-PE and COC bearings, compared to M-PE, were evaluated using parametric and nonparametric models. RESULTS: After adjustment for patient and clinical factors, and the year of surgery, the mean hospital cost and payments for primary THA with a C-PE or COC was within +/-1% of the cost for primary THA with M-PE bearings (P < .001). From the nonparametric analysis, the median hospital cost was $318-$360 more for C-PE and COC than M-PE. The differential in median Medicare payment for THA with ceramic bearings compared to M-PE was <$100. Cost differentials were found to decrease significantly over time (P < .001). CONCLUSION: Patient and clinical factors had a far greater impact on the cost of inpatient THA surgery than bearing selection. Because we found that costs and cost differentials for ceramic bearings were decreasing over time, and approaching the tipping point, it is likely that the cost-effectiveness thresholds relative to M-PE are likewise changing over time and should be revisited in light of this study. PMID- 29336859 TI - Effectiveness of chemotherapy counselling on self-esteem and psychological affects among cancer patients in Malaysia: Randomized controlled trial. AB - OBJECTIVES: The aim of this study was to implement and evaluate the outcomes of chemotherapy counselling based on the "Managing Patients on Chemotherapy" module on self-esteem and psychological affect (anxiety, depression) of cancer patients by pharmacists in ten selected government hospitals in Peninsular Malaysia. METHODS: A randomized control trial was conducted among 2120 cancer patients from April 2016 to January 2017 in ten selected government hospitals in Peninsular Malaysia. Cancer patients were randomly assigned to intervention and control groups. The intervention group received chemotherapy counselling by pharmacists based on the "Managing Patients on Chemotherapy" module. The outcomes were assessed at baseline, 1st, 2nd and 3rd follow-ups after counselling. In the course of data analysis; independent sample t-test, chi-square and two-way repeated measures ANOVA were conducted. RESULTS: Mean scores of self-esteem in the intervention group had significant difference in comparison with those of the control group in the 1st, 2nd and 3rd follow-ups after counselling (P < 0.0001). Also, among those with depression and anxiety at baseline, there was reduction in depression and anxiety scores after the 1st, 2nd and 3rd follow-ups after counselling (p < 0.05). CONCLUSION: Repetitive counselling by pharmacists based on the "Managing Patients on Chemotherapy" module had positive effect on improving self-esteem and psychological affect of cancer patients undergoing chemotherapy in Peninsular Malaysia. PRACTICE IMPLICATIONS: This module can be used for all Malaysian cancer patients undergoing chemotherapy to improving self esteem and psychological affect. PMID- 29336860 TI - Coaching to support men in making informed choices about prostate cancer screening: A qualitative study. AB - OBJECTIVE: The objective of this study was to examine the perceptions of men, practice nurses (PNs) and general practitioners (GPs) on patient decision coaching for prostate cancer screening. METHODS: Seven focus groups were conducted with 47 participants, representing three stakeholder groups - men, GPs and PNs. All focus group discussions were conducted by the same facilitator and guided by a semi-structured interview schedule. Transcriptions were analysed by thematic analysis. RESULTS: Knowledge about the merits of prostate cancer screening was high amongst GPs, but limited with PNs and men. All groups saw the value in PN-led decision coaching for men considering screening for prostate cancer, but had reservations about its implementation in practice. Barriers to implementing a decision coaching system with PNs included staffing and cost of implementation. CONCLUSION: GPs, PNs and men identified benefits for the use of a PN-led decision coaching support intervention to assist men with making an informed choice about screening for prostate cancer. Stakeholders had reservations about how a PN-led intervention would effectively work in clinical practice. PRACTICE IMPLICATIONS: A feasibility study is required to examine barriers and enablers to implementing a PN-led decision coaching process for prostate cancer screening in the Australian primary healthcare setting. PMID- 29336861 TI - Care guide use for repeated non-emergent complaints and its effect on emergency department visit frequency. PMID- 29336862 TI - Reconciling Supply and Demand for State and Local Public Health Staff in an Era of Retiring Baby Boomers. AB - INTRODUCTION: The purpose of this study is to reconcile public health workforce supply and demand data to understand whether the expected influx of public health graduates can meet turnover events. METHODS: Four large public health workforce data sources were analyzed to establish measures of workforce demand, voluntary separations, and workforce employees likely to retire at state and local health departments. Data were collected in 2014-2016 and analyzed in 2016 and 2017. Potential workforce supply (i.e., candidates with formal public health training) was assessed by analyzing data on public health graduates. Supply and demand data were reconciled to identify potential gaps in the public health workforce. RESULTS: At the state and local level, ?197,000 staff are employed in health departments. This is down more than 50,000 from 2008. In total, >=65,000 staff will leave their organizations during fiscal years 2016-2020, with <=100,000 staff leaving if all planned retirements occur by 2020. During 2000-2015, more than 223,000 people received a formal public health degree at some level. More than 25,000 students will receive a public health degree at some level in each year through 2020. CONCLUSIONS: Demands for public health staff could possibly be met by the influx of graduates from schools and programs of public health. However, substantial implications exist for transferal of institutional knowledge and ability to recruit and retain the best staff to sufficiently meet demand. PMID- 29336863 TI - Age-associated expression of vitamin D receptor and vitamin D-metabolizing enzymes in the male reproductive tract and sperm of Hu sheep. AB - The cellular response to 1,25-dihydroxyvitamin D3 (Vit D3; biologically active form of Vitamin D) is complex and depends not only on Vitamin D receptor (VDR) expression but also on cellular uptake of circulating Vit D3 and the presence and activity of Vitamin D-metabolizing enzyme. This study evaluated the expression of VDR and Vitamin D-metabolizing enzymes in the ram reproductive tract at different developmental stages and in spermatozoa. Nearly all cell types in the testes and epithelial cells of the caput, corpus, and cauda expressed VDR, CYP27B1, and CYP24A1 proteins. The mRNA and protein expression of CYP2R1, CYP27A1, and CYP27B1 in the testes and cauda increased significantly with increasing age (P < 0.05). However, epididymal VDR mRNA and protein expression showed no significant difference (P < 0.05) between adult (9- and 24-month-old) and prepubertal (3 month-old) rams. Furthermore, VDR and CYP24A1 were mainly concentrated in the mid piece of ejaculated or cauda epididymis spermatozoa or both. Additionally, VDR and CYP27B1 mRNA and protein expression levels were significantly higher in ejaculated spermatozoa than in cauda epididymal spermatozoa (P < 0.05). Moreover, VDR and CYP24A1 expression was significantly higher in high-motility than in low motility spermatozoa (P < 0.05). The diverse expression patterns of VDR and Vitamin D-metabolizing enzymes in the ram reproductive tract at different developmental stages and spermatozoa suggest it plays a potential role in spermatogenesis. PMID- 29336864 TI - Biochemical characterization, stability, and pathogen safety of a new fibrinogen concentrate (fibryga(r)). AB - Fibryga(r) is a new lyophilized fibrinogen concentrate for intravenous use for the treatment of congenital fibrinogen deficiency. fibryga(r) is produced from pooled human plasma and the final product is characterized by high purity, integrity, and pathogen safety. Functional activity of fibrinogen was demonstrated by cross-linking studies and thromboelastometry; integrity of the fibrinogen molecule was demonstrated by size exclusion chromatography and the detection of only trace amounts of activation markers in the final product. Pathogen safety of fibryga(r) was proved by downscaling studies for the two dedicated pathogen inactivation/removal steps, i.e. solvent detergent treatment and nanofiltration. Fibryga(r) is stable for at least three years when stored at room temperature. In conclusion, the performed studies demonstrated that fibryga(r) meets the requirements for a state-of-the-art fibrinogen concentrate, such as a satisfactory activity profile combined with a favorable pathogen safety profile and stability. PMID- 29336865 TI - Continuous Hyperfractionated Accelerated Radiotherapy (CHART) for Non-small Cell Lung Cancer (NSCLC): 7 Years' Experience From Nine UK Centres. AB - AIM: Continuous hyperfractionated accelerated radiotherapy (CHART) remains an option to treat non-small cell lung cancer (NSCLC; NICE, 2011). We have previously published treatment outcomes from 1998-2003 across five UK centres. Here we update the UK CHART experience, reporting outcomes and toxicities for patients treated between 2003 and 2009. MATERIALS AND METHODS: UK CHART centres were invited to participate in a retrospective data analysis of NSCLC patients treated with CHART from 2003 to 2009. Nine (of 14) centres were able to submit their data into a standard database. The Kaplan-Meier method estimated survival and the Log-rank test analysed the significance. RESULTS: In total, 849 patients had CHART treatment, with a median age of 71 years (range 31-91), 534 (63%) were men, 55% had undergone positron emission tomography-computed tomography (PET-CT) and 26% had prior chemotherapy; 839 (99%) patients received all the prescribed treatment. The median overall survival was 22 months with 2 and 3 year survival of 47% and 32%, respectively. Statistically significant differences in survival were noted for stage IA versus IB (33.2 months versus 25 months; P = 0.032) and IIIA versus IIIB (20 months versus 16 months; P = 0.018). Response at 3 months and outcomes were significantly linked; complete response showing survival of 34 months against 19 months, 15 months and 8 months for partial response, stable and progressive disease, respectively (P < 0.001). Age, gender, performance status, prior chemotherapy and PET-CT did not affect the survival outcomes. Treatment was well tolerated with <5% reporting >=grade 3 toxicity. CONCLUSION: In routine practice, CHART results for NSCLC remain encouraging and we have been able to show an improvement in survival compared with the original trial cohort. We have confirmed that CHART remains deliverable with low toxicity rates and we are taking a dose-escalated CHART regimen forward in a randomised phase II study of sequential chemoradiotherapy against other accelerated dose-escalated schedules. PMID- 29336866 TI - Regulatory mechanisms of collagen expression by interleukin-22 signaling in scleroderma fibroblasts. AB - BACKGROUND: Various cytokines have been indicated to be involved in the pathogenesis of systemic sclerosis (SSc). IL-22 is one of the member of IL-10 cytokine family, and several studies have implicated IL-22 signaling in the pathogenesis of autoimmune diseases. OBJECTIVES: To clarify the role of IL-22 in the regulatory mechanism of ECM expression and to determine the contribution of IL-22 to the phenotype of SSc. METHODS: The effect of IL-22 on ECM expression in normal fibroblasts was determined by using PCR array, real-time PCR and immunoblotting. microRNA expression was evaluated by real-time PCR. The expression levels of IL-22 in the skin and sera were determined by using immunohistochemical staining and ELISA. RESULTS: IL-22 significantly increased the expression of type I collagen protein without changing its mRNA levels in cultured normal human dermal fibroblast. The expression of let-7a, one of the microRNAs which have negative effect on type I collagen expression, was significantly decreased by the treatment with IL-22 in dermal fibroblasts. There was no significant difference in the serum levels of IL-22 between SSc patients and control subjects. However, the expression of IL-22 was detected in the infiltrated lymphocytes in the SSc dermis, but not in normal dermis. IL-22 receptors were expressed in both normal and SSc dermal fibroblasts to the similar extent. CONCLUSION: IL-22 expressed in infiltrated lymphocytes may stimulate the up-regulation of type I collagen protein in dermal fibroblasts via let-7a down regulation in SSc skin. PMID- 29336867 TI - Nevus-like lesions on the lip and the foot. PMID- 29336868 TI - The therapeutic potential of targeting the peripheral endocannabinoid/CB1 receptor system. AB - Endocannabinoids (eCBs) are internal lipid mediators recognized by the cannabinoid-1 and -2 receptors (CB1R and CB2R, respectively), which also mediate the different physiological effects of marijuana. The endocannabinoid system, consisting of eCBs, their receptors, and the enzymes involved in their biosynthesis and degradation, is present in a vast number of peripheral organs. In this review we describe the role of the eCB/CB1R system in modulating the metabolism in several peripheral organs. We assess how eCBs, via activating the CB1R, contribute to obesity and regulate food intake. In addition, we describe their roles in modulating liver and kidney functions, as well as bone remodeling and mass. Special importance is given to emphasizing the efficacy of the recently developed peripherally restricted CB1R antagonists, which were pre-clinically tested in the management of energy homeostasis, and in ameliorating both obesity- and diabetes-induced metabolic complications. PMID- 29336870 TI - Trends in Singing Voice Research: An Innovative Approach. AB - OBJECTIVES: The objectives of this study were to trace and describe research patterns in singing voice, to compare the amount of published research over time, to identify journals that published most papers on "singing voice," and to establish the most frequent research topics. MATERIALS AND METHODS: The study uses qualitative and quantitative approaches through descriptive statistics, text mining, and clustering. The authors conducted a search to identify scientific papers. The titles and abstracts were analyzed regarding word frequency and relations between them, through hierarchical cluster analysis and co-occurrence networks. The frequency of journals was calculated, as well as the amount of papers across time. RESULTS: Since 1949, 754 papers were published and an increase was noticed. Even though 162 journals were identified by the authors, the Journal of Voice holds the majority of papers, in every analyzed period. An evolution of studied topics is described. Up to 2010, the main theme was professional singers, especially classical and opera interpreters. Since then, voice quality and the effects of training gathered more attention. CONCLUSIONS: The growing interest in singing has been conspicuous since the first indexed paper. However, it has been slightly slowing down. Until 2010, great importance was given to the voice quality of singers and their occupational demands. Acoustic analysis was widely used to study the effects of training. Since 2010, the concern with functionality is increasing, rather than the organic voice structures. Musical perception studies have been a trend, as well as the use of electroglottography. PMID- 29336869 TI - Long-term Average Spectra Analysis of Voice in Children With Cleft Palate. AB - OBJECTIVES: The purpose of this study was to survey the spectral characteristics and to compare, using an acoustic analyzer, the objective data obtained from patients with cleft palates with the objective data of normal children using long term average spectra (LTAS) analysis. METHODS: Participants were divided into a clinical group and a control group. All participants were asked to practice reading a sentence to become fluent. The duration of each recording was about 60 seconds. All samples were subjected to acoustic analysis using Praat software. All recordings were analyzed acoustically using LTAS. RESULTS: In this study, there was no significant difference between the control group and the clinical group in the low-frequency region (boys: 0-2720 Hz; girls: 0-2240 Hz). LTAS measurements showed a great difference between the control group and the clinical group in the middle-frequency region (boys: 2720-4000 Hz; girls: 2240-4000 Hz). We also found that the energy distributed in the clinical group was lower than that of the control group in the high-frequency region (4000 Hz-8000 Hz) in both boys and girls. CONCLUSIONS: The results reveal a lack of flat region in the middle-frequency range in the clinical group (both boys and girls) in comparison with the control group. The results also reveal that there is no significant difference across the control group and the clinical group in the low-frequency region. PMID- 29336871 TI - Epigenetic regulation of the kappa opioid receptor gene by an insertion-deletion in the promoter region. AB - Preclinical and clinical studies have demonstrated that the kappa opioid receptor (KOR) regulates reward, hedonic tone and emotions. At therapeutic level, on-going clinical trials are assessing the potential of targeting the KOR for the management of depression, anxiety disorders and substance use disorders. However, genetic polymorphisms in the KOR gene that potentially contribute to its implication in these phenotypes have been poorly studied. Here we investigated an insertion-deletion in the promoter region of KOR (rs35566036), recently associated with alcohol addiction, in a cohort of depressed subjects who died by suicide, as well as psychiatrically healthy individuals. Focusing on 3 brain regions (anterior insula, anterior cingulate cortex, and mediodorsal thalamus), we characterized the functional impact of this structural variant on the expression and patterns of DNA methylation of the KOR gene, using qPCR and targeted Bisulfite-Sequencing, respectively. While there was no significant change in the expression of KOR as a function of the insertion-deletion, or as a function of disease status in any brain region, we found that this variant strongly determines DNA methylation in KOR promoter, leading to a significant decrease in methylation levels of 8 nearby CpG dinucleotides located approximately 500 base pairs upstream the transcription start site. In addition, our results suggest a possible association between the insertion-deletion and depression; however, this result should be tested in larger populations. In sum, in this study we uncovered an epigenetic mechanism potentially contributing to KOR dysfunction in carriers of the insertion-deletion. PMID- 29336872 TI - Abundance of ribosomal RNA gene copies in the genomes of schizophrenia patients. AB - OBJECTIVE: The ribosome is a critical component of the translation machinery. The key component of ribosomes is ribosomal RNA (rRNA). Dysregulation of rRNA biogenesis has been implicated in some human diseases. One of the factors affecting rRNA biogenesis is the ribosomal RNA genes (rDNA) copy number in the genome. The aim of this study was to examine the rDNA copy number (CN) variation in the genomes of patients with schizophrenia (SZ) compared to healthy controls (HC). METHODS: We evaluated rDNA CN in leukocytes of 179 subjects with SZ (108 male/71 female) in comparison with 122 HC (60 male/62 female) using two techniques: qPCR and nonradioactive quantitative hybridization (NQH), which is based on the use of biotinylated rDNA probes. RESULTS: rDNA CN (NQH) and rDNA CN (qPCR) was higher in SZ patients than in controls (median 542 vs 384, p=10-25 and median 498 vs 370, p=10-12). NQH was experimentally proved to be less sensitive to severe DNA damage than qPCR. The more DNA damage, the higher the ratio R=CN (NQH)/CN (qPCR). 15% of the SZ patients had significantly higher rDNA damage degree than the HC. CONCLUSION: Genomes of some SZ patients contain more ribosomal genes than those of HC. The elevated ribosomal genes copy number in human genome can be one of the genetic factors of schizophrenia development. This hypothesis requires further experimental studies to be corroborated or disproved. PMID- 29336874 TI - Regioselectivity of thiouracil alkylation: Application to optimization of Darapladib synthesis. AB - Darapladib is one of the most potent Lp-PLA2 (Lipoprotein-associated phospholipase A2) inhibitor with an IC50 of 0.25 nM. We demonstrate that a crucial step of Darapladib synthesis was not correctly described in the literature, leading to the production of wrong regioisomers. Moreover we show that the inhibitory activity is directly linked to the position on N1 since compounds bearing alkylation on different sites have potentially less interaction within the active site of Lp-PLA2. PMID- 29336873 TI - Optimization of novel monobactams with activity against carbapenem-resistant Enterobacteriaceae - Identification of LYS228. AB - Metallo-beta-lactamases (MBLs), such as New Delhi metallo-beta-lactamase (NDM-1) have spread world-wide and present a serious threat. Expression of MBLs confers resistance in Gram-negative bacteria to all classes of beta-lactam antibiotics, with the exception of monobactams, which are intrinsically stable to MBLs. However, existing first generation monobactam drugs like aztreonam have limited clinical utility against MBL-expressing strains because they are impacted by serine beta-lactamases (SBLs), which are often co-expressed in clinical isolates. Here, we optimized novel monobactams for stability against SBLs, which led to the identification of LYS228 (compound 31). LYS228 is potent in the presence of all classes of beta-lactamases and shows potent activity against carbapenem-resistant isolates of Enterobacteriaceae (CRE). PMID- 29336875 TI - Systems pharmacology dissection of the anti-stroke mechanism for the Chinese traditional medicine Xing-Nao-Jing. AB - Xing-Nao-Jing (XNJ) is a well-known injection that has been extensively applied in clinical treatment of stroke in China. However, the underlying mechanism of clinical administration of XNJ in stroke remains unclear. In this study, a systems pharmacology strategy based on pharmacokinetic and pharmacodynamics data was applied to analyze the pharmacological effect of XNJ on stroke. Sixteen active compounds were filtered from XNJ through Drug-likeness (DL) and Brain blood-barrier (BBB) evaluations. Ninety-four potential targets of these active components were identified by SysDT and SEA. Biological process and pathway enrichment analyses of these targets demonstrated that XNJ exerted anti-stroke effects by biological processes and pathways, such as the response to oxidative stress, regulation of blood pressure, calcium signaling pathway, and apoptosis. Integrating the compound-target network and stroke-related PPI network, we found that Akt1, HIF-1alpha and ITGB2 may play key roles in the treatment of stroke. The experiments demonstrated that oxycurcumenol may prevent PC12 cells from oxidative stress-induced cell damage. Our study indicates that XNJ has an effect on stroke by protecting neuro cells from oxidative stress-induced cell damage via HIF1alpha, and the research strategy at the systems pharmacology level is feasible to reveal the mechanisms of novel lead compounds from natural products. PMID- 29336876 TI - Structural Basis of Heterochromatin Formation by Human HP1. AB - Heterochromatin plays important roles in transcriptional silencing and genome maintenance by the formation of condensed chromatin structures, which determine the epigenetic status of eukaryotic cells. The trimethylation of histone H3 lysine 9 (H3K9me3), a target of heterochromatin protein 1 (HP1), is a hallmark of heterochromatin formation. However, the mechanism by which HP1 folds chromatin containing H3K9me3 into a higher-order structure has not been elucidated. Here we report the three-dimensional structure of the H3K9me3-containing dinucleosomes complexed with human HP1alpha, HP1beta, and HP1gamma, determined by cryogenic electron microscopy with a Volta phase plate. In the structures, two H3K9me3 nucleosomes are bridged by a symmetric HP1 dimer. Surprisingly, the linker DNA between the nucleosomes does not directly interact with HP1, thus allowing nucleosome remodeling by the ATP-utilizing chromatin assembly and remodeling factor (ACF). The structure depicts the fundamental architecture of heterochromatin. PMID- 29336877 TI - Sin-quadratic model for chest tomosynthesis respiratory signal analysis and its application in four dimensional chest tomosynthesis reconstruction. AB - Chest tomosynthesis (CTS) is a newly developed imaging technique which provides pseudo-3D volume anatomical information of thorax from limited-angle projections and contains much less of superimposed anatomy than the chest X-ray radiography. One of the relatively common problems in CTS is the patient respiratory motion during image acquisition, which negatively impacts the detectability. In this work, we propose a sin-quadratic model to analyze the respiratory motion during CTS scan, which is a real time method where the respiratory signal is generated by extracting the motion of diaphragm from projection radiographs. According to the estimated respiratory signal, the CTS projections were then amplitude-based sorted into four to eight phases, and an iterative reconstruction strategy with total variation regularization was adopted to reconstruct the CTS images at each phase. Simulated digital XCAT phantom data and three sets of patient data were adopted for the experiments to validate the performance of the sin-quadratic model and its application in four dimensional (4D) CTS reconstruction. Results of the XCAT phantom simulation study show that the correlation coefficient between the extracted respiratory signal and the originally designed respiratory signal is 0.9964, which suggests that the proposed model could exactly extract the respiratory signal from CTS projections. The 4D CTS reconstructions of both the phantom data and the patient data show clear reduction of motion-induced blur. PMID- 29336878 TI - Healing of Periapical Lesions after Endodontic Treatment with the GentleWave Procedure: A Prospective Multicenter Clinical Study. AB - INTRODUCTION: This report includes outcomes for a group of patients with significant periapical lesions who were treated and evaluated in two single-arm, multicenter, prospective, nonsignificant risk clinical studies. METHODS: Forty five teeth were from 45 patients who met the inclusion criteria and consented for the clinical studies and were diagnosed with periapical lesions with periapical index score >=3. Patients were treated with a standardized treatment protocol including instrumentation to an apical diameter of #20 without orifice enlargement, the GentleWave Procedure, and warm vertical obturation. Clinical signs and radiographic assessments were evaluated at 12 months to assess healing. Success was classified as healing or healed and accounted for the cumulative success rate of healing. Statistical analyses were performed by using Fisher exact test, Pearson correlation, and multivariate logistic regression analyses. RESULTS: At 12 months, 44 of 45 teeth (97.8%) were evaluated. The cumulative success rate for the GentleWave Procedure was 97.7%. Forty-three of 44 teeth were completely functional; all teeth had complete resolution for measured indices of mobility, soft tissue lesions, sinus tract, and furcation involvement. No patients experienced moderate or severe pain at 2, 7, and 14 days after procedure. Although only 1 patient was unsuccessful and the presence of clinical symptoms and type of periradicular diagnosis at 12 months were correlated with an unsuccessful outcome, the analyses were limited by the sample size. CONCLUSIONS: In this case series analysis, treatment of sizable periapical lesions with the GentleWave Procedure resulted in a success rate of 97.7% at 12-month re evaluation. PMID- 29336879 TI - Effect of Dynamic Immersion in Sodium Hypochlorite and EDTA Solutions on Cyclic Fatigue Resistance of WaveOne and WaveOne Gold Reciprocating Nickel-titanium Files. AB - INTRODUCTION: The purpose of this study was to evaluate the effect of sodium hypochlorite (NaOCl) and EDTA solutions on the cyclic fatigue resistance of WaveOne (WO) and WaveOne Gold (WOG) nickel-titanium reciprocating files. METHODS: A hundred WO (25/.08), and 100 WOG (25/.07) were randomly divided into 5 groups: group 1, no immersion; group 2, immersion in 5.25% NaOCl at 37 degrees C +/- 1 degrees C for 5 minutes; group 3, immersion in 5.25% NaOCl at 37 degrees C +/- 1 degrees C for 10 minutes; group 4, immersion in 17% EDTA at 37 degrees C +/- 1 degrees C for 5 minutes; and group 5, immersion in 17 % EDTA at 37 degrees C +/- 1 degrees C for 10 minutes. Then, the instruments were reciprocated in an artificial canal until fracture occurred, and the time to fracture was recorded. The data were statistically analyzed using 1-way analysis of variance and the Student t test via SPSS 21.0 software (IBM Corp, Armonk, NY) with the significance level set at P < .05. RESULTS: The cyclic fatigue resistance of the WOG was statistically higher than the WO in all the conditions tested (P < .05). There was no statistically significant difference among the different conditions tested in terms of cyclic fatigue resistance for both WO and WOG files (P > .05). Among the groups, there was no significant difference in the fracture lengths (P > .05). CONCLUSIONS: Within the limitations of the present study, it was determined that NaOCl and EDTA solutions did not have any effect on the cyclic fatigue resistance of WO and WOG files. PMID- 29336880 TI - Marginal Gaps between 2 Calcium Silicate and Glass Ionomer Cements and Apical Root Dentin. AB - INTRODUCTION: The outcome of periapical surgery has been directly improved with the introduction of novel material formulations. The aim of the study was to compare the retrograde obturation quality of the following materials: calcium silicate (Biodentine; Septodont, Saint-Maur-des-Fosses, France), mineral trioxide aggregate (MTA+; Cerkamed Company, Stalowa Wola, Poland), and glass ionomer cement (Fuji IX; GC Corporation, Tokyo, Japan). METHODS: Materials' wettability was calculated concerning the contact angles of the cements measured using a glycerol drop. Cements' porosity was determined using mercury intrusion porosimetry and micro-computed tomographic (MUCT) imaging. Extracted upper human incisors were retrofilled, and MUCT analysis was applied to calculate the volume of the gap between the retrograde filling material and root canal dentin. Experiments were performed before and after soaking the materials in simulated body fluid (SBF). RESULTS: No statistically significant differences were found among the contact angles of the studied materials after being soaked in SBF. The material with the lowest nanoporosity (Fuji IX: 2.99% and 4.17% before and after SBF, respectively) showed the highest values of microporosity (4.2% and 3.1% before and after SBF, respectively). Biodentine had the lowest value of microporosity (1.2% and 0.8% before and after SBF, respectively) and the lowest value of microgap to the root canal wall ([10 +/- 30] * 10-3 mm3). CONCLUSIONS: Biodentine and MTA possess certain advantages over Fuji IX for hermetic obturation of retrograde root canals. Biodentine shows a tendency toward the lowest marginal gap at the cement-to-dentin interface. PMID- 29336881 TI - Influence of Contracted Endodontic Access on Root Canal Geometry: An In Vitro Study. AB - INTRODUCTION: Contracted endodontic cavities (CECs) have developed from the concept of minimally invasive dentistry and provide an alternative to traditional endodontic cavities (TECs). They have been designed in an effort to preserve the mechanical stability of teeth. The contracted cavity design preserves more of the dentin but may influence the geometric shaping parameters. The aim of this micro computed tomographic study was to evaluate the influence of contracted endodontic cavities on the preservation of the original root canal anatomy after shaping with nickel-titanium rotary instruments. METHODS: Thirty extracted human mandibular molars with fully formed apices and independent mesial canals were randomly assigned to group 1 (TEC) and group 2 (CEC). Each group was shaped using ProGlider (Dentsply Maillefer, Ballaigues, Switzerland) and WaveOne Gold (Dentsply Maillefer). Irrigation was performed with 10% EDTA and 5% sodium hypochlorite. Samples were scanned before and after canal shaping to match canal volumes (SkyScan; Bruker microCT, Kontich, Belgium [100 kV, 100 MUA, and 15-MUm resolution]), and images were analyzed to evaluate canal volumes, surface areas, and centroid shift on cross sections at -1 mm and -3 mm from the apex. RESULTS: TECs showed a greater preservation of the original root canal anatomy with less apical transportation than CECs, possibly because of the absence of coronal interferences and, therefore, fewer pecking motions required to complete instrumentation. CONCLUSIONS: Within the limitations of this study, TECs may lead to a better preservation of the original canal anatomy during shaping compared with CECs, particularly at the apical level. PMID- 29336882 TI - Histobacteriologic Conditions of the Apical Root Canal System and Periapical Tissues in Teeth Associated with Sinus Tracts. AB - INTRODUCTION: This histobacteriologic study described the pattern of intraradicular and extraradicular infections in teeth with sinus tracts and chronic apical abscesses. METHODS: The material comprised biopsy specimens from 24 (8 untreated and 16 treated) roots of teeth associated with apical periodontitis and a sinus tract. Specimens were obtained by periradicular surgery or extraction and were processed for histobacteriologic and histopathologic methods. RESULTS: Bacteria were found in the apical root canal system of all specimens, in the main root canal (22 teeth) and within ramifications (17 teeth). Four cases showed no extraradicular infection. Extraradicular bacteria occurred as a biofilm attached to the outer root surface in 17 teeth (5 untreated and 12 treated teeth), as actinomycotic colonies in 2 lesions, and as planktonic cells in 2 lesions. Extraradicular calculus formation (mineralized biofilm) was evident in 10 teeth. CONCLUSIONS: Teeth with chronic apical abscesses and sinus tracts showed a very complex infectious pattern in the apical root canal system and periapical lesion, with a predominance of biofilms. PMID- 29336883 TI - Long-term Prognosis of Pulpal Status of Traumatized Teeth Exhibiting Contradictory Results between Pulp Sensibility Test and Ultrasound Doppler Flowmetry: A Retrospective Study. AB - INTRODUCTION: In this retrospective study, we investigated long-term (over 3 years) follow-up results of teeth that exhibited contradictory results between the pulp sensibility test (thermal or electric pulp test) and ultrasound Doppler flowmetry (UDF) until 1 year after trauma to inspect the prognosis of the pulp. METHODS: Data were collected from the records of trauma patients in our hospital between February 2012 and May 2015. The teeth that had continuously shown contrasting results on the pulp sensibility test and UDF until 1 year after trauma were chosen for the study. Cases with follow-up records of more than 3 years after trauma were finally included, and a retrospective chart review was performed. RESULTS: Data from 343 teeth in 147 patients who visited the hospital with traumatic dental injuries were examined. Among these, 13 teeth from 7 patients were included, and the record of each case was reviewed. All the subjects showed negative responses on the pulp sensibility test and positive responses on UDF until 1 year after trauma. Ultimately, 8 of the 13 teeth recovered pulp sensibility. Two teeth failed to recover pulp sensibility and became symptomatic; root canal treatment was performed on the teeth. The remaining 3 teeth belonged to patients suffering from nerve damage; therefore, the pulp sensibility test was not feasible. CONCLUSIONS: Based on this study, UDF can be effectively used for the evaluation of pulpal status in traumatized teeth. PMID- 29336884 TI - Effect of Torsional and Fatigue Preloading on HyFlex EDM Files. AB - INTRODUCTION: The purpose of this study was to evaluate the effect of a low amount of torsional preloading on the fatigue life and different degrees of cyclic fatigue on torsional failure of HyFlex EDM (EDM; Coltene-Whaledent, Allstetten, Switzerland) and HyFlex CM (CM; Coltene-Whaledent) instruments. METHODS: EDM and CM files were used. The fatigue resistance was examined in a 5 mm radius and 60 degrees single curve, and the mean number of cycles to failure (Nf) was recorded. The torque and rotation angles at failure of the instruments were measured according to ISO 3630-1. New files were precycled to 0%, 50%, and 75% of the Nf, and torsional tests were then performed. Other new files were preloaded at 5%, 15%, 25%, and 50% of the mean rotation angles before the fatigue test. The fracture surfaces of the fragments were examined under a scanning electron microscope. RESULTS: The fatigue resistance of EDM instruments was higher than that of CM instruments (P < .05). The torque and angle of rotation at fracture of the files were similar. Torsional preloading lowered the Nf of EDM at 15% preloading (P < .05) and the Nf of CM at 50% preloading (P < .05). However, the Nf of EDM files even with 50% torsional preloading was significantly higher than unused CM files (P < .05). Fatigue prestressing even at 75% had no negative effect on the torque and rotation angle of the EDM files. Moderate precycling (50%) of EDM files increased their torsional resistance. The fractographic patterns corresponded to the pattern defined by the last stage test. CONCLUSIONS: A low amount (15%) of torsional preloading reduced the fatigue resistance of EDM files, whereas even extensive (75%) precyclic fatigue was not detrimental to their torsional resistance. PMID- 29336885 TI - Structural Basis for Activity and Specificity of an Anticoagulant Anti-FXIa Monoclonal Antibody and a Reversal Agent. AB - Coagulation factor XIa is a candidate target for anticoagulants that better separate antithrombotic efficacy from bleeding risk. We report a co-crystal structure of the FXIa protease domain with DEF, a human monoclonal antibody that blocks FXIa function and prevents thrombosis in animal models without detectable increased bleeding. The light chain of DEF occludes the FXIa S1 subsite and active site, while the heavy chain provides electrostatic interactions with the surface of FXIa. The structure accounts for the specificity of DEF for FXIa over its zymogen and related proteases, its active-site-dependent binding, and its ability to inhibit substrate cleavage. The inactive FXIa protease domain used to obtain the DEF-FXIa crystal structure reversed anticoagulant activity of DEF in plasma and in vivo and the activity of a small-molecule FXIa active-site inhibitor in vitro. DEF and this reversal agent for FXIa active-site inhibitors may help support clinical development of FXIa-targeting anticoagulants. PMID- 29336886 TI - Can the Syndesmosis Procedure Prevent Metatarsus Primus Varus and Hallux Valgus Deformity Recurrence? A 5-Year Prospective Study. AB - One of the main objectives of hallux valgus surgery is correction of the metatarsus primus varus deformity by osteotomy, arthrodesis, or soft tissue correction. The syndesmosis procedure uses intermetatarsal cerclage sutures to realign the first metatarsal and also induces a syndesmotic bonding between the first and second metatarsals to prevent metatarsus primus varus deformity recurrence. The purpose of the present study was to demonstrate radiologic evidence of the effectiveness of the syndesmosis concept and to identify the incidence and nature of deformity recurrence. A total of 55 feet from 60 consecutive procedures were followed regularly at 6 fixed points for 5 years. The radiologic inclusion criterion was a first intermetatarsal angle >9 degrees or metatarsophalangeal angle >20 degrees . The initial postoperative radiographs showed significant correction of the intermetatarsal angle from a preoperative average of 14.5 degrees to 4.3 degrees (p < .0001). It had increased to 7.0 degrees during the first 6 postoperative months but remained within the normal upper limit of 9 degrees and exhibited no further significant changes for the subsequent 4.5 years (p = .0792). Hallux valgus deformity correction also correlated with metatarsus primus varus deformity correction. Three (5%) second metatarsal stress fractures occurred, and all recovered uneventfully. In conclusion, we have report the findings from a detailed medium long-term follow up study showing, to the best of our knowledge, for the first time that metatarsus primus varus and hallux valgus deformities can be effectively corrected and maintained using a specific surgical technique. Also included are 6 relevant radiographs and photographs of the included and excluded feet in the online Supplementary Material for reference. PMID- 29336887 TI - GroEL Ring Separation and Exchange in the Chaperonin Reaction. AB - The bacterial chaperonin GroEL and its cofactor, GroES, form a nano-cage for a single molecule of substrate protein (SP) to fold in isolation. GroEL and GroES undergo an ATP-regulated interaction cycle to close and open the folding cage. GroEL consists of two heptameric rings stacked back to back. Here, we show that GroEL undergoes transient ring separation, resulting in ring exchange between complexes. Ring separation occurs upon ATP-binding to the trans ring of the asymmetric GroEL:7ADP:GroES complex in the presence or absence of SP and is a consequence of inter-ring negative allostery. We find that a GroEL mutant unable to perform ring separation is folding active but populates symmetric GroEL:GroES2 complexes, where both GroEL rings function simultaneously rather than sequentially. As a consequence, SP binding and release from the folding chamber is inefficient, and E. coli growth is impaired. We suggest that transient ring separation is an integral part of the chaperonin mechanism. PMID- 29336890 TI - Some notes on citrulline in the CNS. PMID- 29336889 TI - KRAS Dimerization Impacts MEK Inhibitor Sensitivity and Oncogenic Activity of Mutant KRAS. AB - The mechanism by which the wild-type KRAS allele imparts a growth inhibitory effect to oncogenic KRAS in various cancers, including lung adenocarcinoma (LUAD), is poorly understood. Here, using a genetically inducible model of KRAS loss of heterozygosity (LOH), we show that KRAS dimerization mediates wild-type KRAS-dependent fitness of human and murine KRAS mutant LUAD tumor cells and underlies resistance to MEK inhibition. These effects are abrogated when wild type KRAS is replaced by KRASD154Q, a mutant that disrupts dimerization at the alpha4-alpha5 KRAS dimer interface without changing other fundamental biochemical properties of KRAS, both in vitro and in vivo. Moreover, dimerization has a critical role in the oncogenic activity of mutant KRAS. Our studies provide mechanistic and biological insights into the role of KRAS dimerization and highlight a role for disruption of dimerization as a therapeutic strategy for KRAS mutant cancers. PMID- 29336888 TI - LXR/ApoE Activation Restricts Innate Immune Suppression in Cancer. AB - Therapeutic harnessing of adaptive immunity via checkpoint inhibition has transformed the treatment of many cancers. Despite unprecedented long-term responses, most patients do not respond to these therapies. Immunotherapy non responders often harbor high levels of circulating myeloid-derived suppressor cells (MDSCs)-an immunosuppressive innate cell population. Through genetic and pharmacological approaches, we uncovered a pathway governing MDSC abundance in multiple cancer types. Therapeutic liver-X nuclear receptor (LXR) agonism reduced MDSC abundance in murine models and in patients treated in a first-in-human dose escalation phase 1 trial. MDSC depletion was associated with activation of cytotoxic T lymphocyte (CTL) responses in mice and patients. The LXR transcriptional target ApoE mediated these effects in mice, where LXR/ApoE activation therapy elicited robust anti-tumor responses and also enhanced T cell activation during various immune-based therapies. We implicate the LXR/ApoE axis in the regulation of innate immune suppression and as a target for enhancing the efficacy of cancer immunotherapy in patients. PMID- 29336891 TI - Cupuacu extract reduces nitrosative stress and modulates inflammatory mediators in the kidneys of experimental diabetes. AB - BACKGROUND & AIMS: We have previously reported an increased nitrosative stress in the kidneys of diabetic animals, which was reduced by an antioxidant probiotic. The present study evaluated whether the extract of cupuacu (EC), an antioxidant compound rich in polyphenols and theograndins, when administered at a dose that can be reasonably obtained through daily consumption, could delay the onset of diabetic complications in the kidney. METHODS: Mouse immortalized mesangial cells (MiMC) were placed in medium normal glucose (NG) or high glucose (HG), with or without EC (500, 100, 50 or 10 MUg/mL) during 24, 48 or 72 h for analysis of viability, proliferation, nitric oxide (NO) levels and reactive oxygen species or nitrogen (ROS/RNS). Male, adult Wistar rats were distributed in 4 groups: control (CTL) and diabetic (DM) who received water; CTLEC and DMEC who received 1 mL/day of EC (1 g/mL), via gavage for 8 consecutive weeks. After, metabolic profile and renal function were evaluated and, kidneys were collected for analysis of NO, ROS, 3-nitrotyrosine (3-NT), endothelial nitric oxide synthase (eNOS), IL-6, IL 10, TNF-alpha and NF-kappaB p65. RESULTS: The MiMC showed normal viability in all groups, demonstrating that EC had no cytotoxic effect at doses on 24, 48 or 72 h. MiMC under HG presented significant increase in proliferation, NO and ROS vs. NG; these parameters were significantly reduced after 72 h of EC treatment (P < 0.05). DMEC showed a significant reduction of feed intake, ROS and NO, 3-NT, IL-6 and eNOS vs. DM (P < 0.05). Supplementation with EC at a dose consumed daily could improve control of nitrosative stress, combined with reduction of inflammatory factors, suggesting the importance of bioactive compounds as non pharmacological adjuvant therapy to delay kidney complications in diabetic patients. PMID- 29336892 TI - Gene therapy and gene editing strategies for hemoglobinopathies. AB - Gene therapy for hemoglobinopathies is currently based on transplantation of autologous hematopoietic stem cells genetically modified with an integrating lentiviral vector expressing a globin gene under the control of globin transcriptional regulatory elements. Studies and safety works demonstrated the potential therapeutic efficacy and safety of this approach, providing the rationale for clinical translation. The outcomes of early clinical trials, although showing promising results, have highlighted the current limitations to a more general application. These include the nature, source and age of repopulating hematopoietic stem cells, the suboptimal transduction efficiency and gene expression levels, the toxicity and efficacy of bone marrow conditioning, the stress status of bone marrow microenvironment in chronic diseases such as beta-thalassemia and sickle cell disease. Recently, gene editing strategies based on the use of nucleases offered a novel approach to increase globin expression in a quasi-physiological way, independently from the addition of transgenes and viral sequences to the human genome. This review will discuss the current status of gene therapy for beta-thalassemia and sickle cell disease with a perspective towards the improvements necessary in the context of clinical translation. PMID- 29336893 TI - A meta-analysis of the utility of the neutrophil-to-lymphocyte ratio in predicting survival after pancreatic cancer resection. AB - BACKGROUND: The neutrophil-to-lymphocyte ratio (NLR) is thought to reflect cancer disease burden. To assess the prognostic ability of the NLR on overall survival in patients with resectable, pancreatic cancer a meta-analysis of published literature was undertaken. METHOD: A systematic review was performed independently by two authors using PubMed, Ovid MEDLINE and Embase databases. Included studies detailed the pre-operative NLR and overall survival of pancreatic cancer patients. RESULTS: Of the 214 studies retrieved using the search strategy, 8 studies involving 1519 patients were included in the meta analysis. Only one study did not find a statistically significant association between a high NLR and OS. The pooled Hazard Ratio was 1.77 (95% CI [1.45-2.15]; p < 0.01). The NLR cut-off values ranged from 2 to 5. There was low to moderate inter-study heterogeneity (I2 = 31%; p = 0.17), a low risk of intra-study bias, and potentially 3 unpublished (negative) studies. CONCLUSIONS: A high pre operative NLR indicates a worse prognosis than in patients with a low NLR. There is potential to use the NLR to direct therapies. A specific cut-off value has not been established from this study and so further research is required. PMID- 29336894 TI - Preoperative surveillance rectal swab is associated with an increased risk of infectious complications in pancreaticoduodenectomy and directs antimicrobial prophylaxis: an antibiotic stewardship strategy? AB - BACKGROUND: Despite improvements in the perioperative care, the morbidity rate after pancreaticoduodenectomy (PD) is still higher than 50%. The aim of this study was twofold: first, to assess the correlation between preoperative rectal swab (RS) and intraoperative bile cultures; to examine the impact of RS isolates on postoperative course after PD. METHODS: An observational study was conducted analyzing all consecutive PD performed from January 2015 to July 2016. Based on the positivity/negativity of preoperative RS for multi-drug resistant bacteria, two groups of patients were identified (RS+ vs. RS-) and then compared. RESULTS: Three hundred thirty-eight patients were considered for the analysis. RS culture showed a perfect correlation (species and phenotypic antibiotic susceptibility pattern) with bile culture in 157 patients (86.7%). Fifty patients (14.8%) had a RS+. Preoperative biliary drain (PBD) was the single independent preoperative risk factor associated to RS+ (p = 0.021, OR = 2.6, 95% CI = 1.5-11.7). Infective complications (IC) and mortality were independently correlated to RS+ (p = 0.013, OR = 2.9, 95% CI = 1.3-6.7; p = 0.009 OR = 3.4, 95% CI = 1.8-14.9, respectively). CONCLUSIONS: Preoperative surveillance RS-culture's positivity correlates to biliary colonization that occurs after PBD. IC and mortality after PD are associated with RS+. Preoperative RS can direct antibiotic prophylaxis to reduce morbidity and mortality after PD. PMID- 29336895 TI - Alterations in peripheral fatty acid composition in bipolar and unipolar depression. AB - BACKGROUND: Lipid metabolism has been shown to play an important role in unipolar and bipolar depression. In this study, we aimed to evaluate levels of fatty acids in patients with unipolar (MDD) and bipolar depression (BDD) in comparison to patients with bipolar disorder in euthymia (BDE) and non-psychiatric controls. METHODS: Levels of saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) were assessed in serum of (87) patients with BD (31 euthymic, 22 depressive) or MDD (34) and (31) non psychiatric controls through GC-FID. RESULTS: No significant difference in total levels of PUFAs (polyunsaturated fatty acids), SFAs (saturated fatty acids), MUFAs (monounsaturated fatty acids) and total fatty acids were found between groups. Our results demonstrated higher levels AA: EPA and AA: EPA+DHA in patients with BDD. Additionally, we observed that overall omega-6 present a positive correlation with illness duration in patients with BDD and AA: EPA ratio positively associated with illness duration in MDD group. Depression severity was positively associated with AA: EPA+DHA ratio in all participants. CONCLUSION: Together, our results support the relevance for the balance of omega-3 and omega 6 in BDD. Also, our results suggest a potential subset of stage-related lipid biomarkers that further studies are needed to help clarify the dynamics of lipid alteration in BD and MDD. PMID- 29336896 TI - Targeted Retinal Photocoagulation for Diabetic Macular Edema with Peripheral Retinal Nonperfusion: Three-Year Randomized DAVE Trial. AB - PURPOSE: To evaluate the effect of targeted retinal photocoagulation (TRP) on visual and anatomic outcomes and treatment burden in eyes with diabetic macular edema (DME). DESIGN: Phase I/II prospective, randomized, controlled clinical trial. PARTICIPANTS: Forty eyes of 29 patients with center-involved macular edema secondary to diabetes mellitus. METHODS: Eyes with center-involved DME and Early Treatment Diabetic Retinopathy Study (ETDRS) best-corrected visual acuity (BCVA) between 20/32 and 20/320 (Snellen equivalent) were randomized 1:1 to monotherapy with 0.3 mg ranibizumab (Lucentis, Genentech, South San Francisco, CA) or combination therapy with 0.3 mg ranibizumab and TRP guided by widefield fluorescein angiography. All eyes received 4 monthly ranibizumab injections followed by monthly examinations and pro re nata (PRN) re-treatment through 36 months. Targeted retinal photocoagulation was administered outside the macula to areas of retinal capillary nonperfusion plus a 1-disc area margin in the combination therapy arm at week 1, with re-treatment at months 6, 18, and 25, if indicated. MAIN OUTCOME MEASURES: Mean change in ETDRS BCVA from baseline and number of intravitreal injections administered. RESULTS: At baseline, mean age was 55 years, mean BCVA was 20/63 (Snellen equivalent), and mean central retinal subfield thickness (CRT) was 530 MUm. Thirty-four eyes (85%) completed month 36, at which point mean BCVA improved 13.9 and 8.2 letters (P = 0.20) and mean CRT improved 302 and 152 MUm (P = 0.03) in the monotherapy and combination therapy arms, respectively. The mean number of injections administered through month 36 was 24.4 (range, 10-34) and 27.1 (range, 12-36), with 73% (362/496) and 80% (433/538) of PRN injections administered (P = 0.004) in the monotherapy and combination therapy arms, respectively. Goldmann visual field isopter III-4e area decreased by 2% and 18% in the monotherapy and combination therapy arms, respectively (P = 0.30). CONCLUSIONS: In this 3-year randomized trial of 40 eyes with DME, there was no evidence that combination therapy with ranibizumab and TRP improved visual outcomes or reduced treatment burden compared with ranibizumab alone. PMID- 29336897 TI - The Real-World Effect of Intravitreous Anti-Vascular Endothelial Growth Factor Drugs on Intraocular Pressure: An Analysis Using the IRIS Registry. AB - PURPOSE: To identify sustained differences in intraocular pressure (IOP) after intravitreous injections of anti-vascular endothelial growth factor (VEGF) drugs. DESIGN: Database study. PARTICIPANTS: Patients seeing an ophthalmic provider who contributes to the database. METHODS: We identified a total of 23 776 unique patients who received only a single type of anti-VEGF medication (bevacizumab, aflibercept, or ranibizumab) by injection in the right eye in the American Academy of Ophthalmology Intelligent Research in Sight Registry. Subgroups included patients with age-related macular degeneration only and patients who had not received an anti-VEGF injection for at least 1 year before the study. We examined those with at least 12, 18, and 25 injections for each of these 3 medications. For all groups, we used fellow, untreated eyes for comparison. MAIN OUTCOME MEASURES: The mean change in IOP from baseline at a minimum of 1 year of follow-up and the proportion of eyes with a clinically significant IOP increase (defined as sustained rise of at least 6 mmHg to an IOP of more than 21 mmHg). RESULTS: All patients in all groups receiving all drugs showed a decrease in IOP from baseline, with a mean of 0.9 mmHg in treated eyes compared with an average decrease of 0.2 mmHg in fellow untreated eyes, a statistically significant difference. A generalized linear model accounting for confounders associated bevacizumab with slightly less lowering of IOP than aflibercept and ranibizumab in most subgroups. A clinically significant IOP increase was seen in 2.6% of eyes receiving injections compared with 1.5% in the associated untreated fellow eyes. Clinically significant IOP increases occurred at a rate of 1.9%, 2.8%, and 2.8% for aflibercept, ranibizumab, and bevacizumab, respectively, which was significantly higher than untreated fellow eyes for bevacizumab and ranibizumab, but not for aflibercept. CONCLUSIONS: These analyses from real-world data indicate that anti-VEGF intravitreous injections are associated with a small but statistically significant decrease in IOP over time. A proportion of patients, on average 2.6%, experienced a sustained clinically significant IOP rise with these drugs overall compared with 1.5% in the fellow untreated eyes. However, such an increase was not seen with aflibercept. PMID- 29336898 TI - Effect of transcranial direct current stimulation on short-term and long-term treatment of chronic tinnitus. AB - OBJECTIVE: This study was conducted to investigate the effectiveness of anodal and cathodal methods in reducing the intensity of tinnitus and to compare them with the control. METHODOLOGY: This randomized double-blind clinical trial with case and control groups was conducted in Al-Zahra Hospital in Isfahan between 2015 and 2016. In this trial, 51 patients with tinnitus, for at least one year, were selected among those outpatients visiting the throat, nose and ear clinic within this period. Inclusion criteria were patients on electrical stimulation prohibition, with Meniere's disease, otosclerosis, chronic headache, and pulsatile tinnitus. Patients were randomly divided in three equal-sized groups: anodal stimulation group, cathodal stimulation group, and control group. The subjects received 20-min current stimulation (2 mA). Five subjects were selected from those with a significant difference between the stimulated states (anodal or cathodal) and/or control. They received weekly transcranial electrical stimulation for two months, and their long-term recovery from tinnitus was investigated. Data analysis was done with SPSS20. RESULTS: Findings showed no significant between-groups difference in mean scores of tinnitus before the intervention (p = .68); whereas, this difference was significant immediately after the intervention (p = .02) and 1 h after it (p = .03). The mean score of tinnitus in the anodal stimulation group was significantly lower than the control; whereas, no significant difference was observed between the anodal and cathodal stimulation groups, and between the cathodal and control groups (p < .05). Findings also showed that the mean scores of tinnitus in two cathodal stimulation groups (p = .24) and control group (p = .62) were not significantly different at three different points of time; whereas, this score was significantly different in the anodal group at these time points (p = .01). CONCLUSION: In conclusion, anodal stimulation was more effective than the cathodal and control stimulation in reducing the intensity of tinnitus in the short term. PMID- 29336899 TI - Commentary on letter to the editor on manuscript "Image analysis of interarytenoid area to detect cases of Laryngopharyngeal Reflux: An objective method". PMID- 29336900 TI - Combined use of a nanocarbon suspension and 99mTc-MIBI for the intra-operative localization of the parathyroid glands. AB - OBJECTIVE: To investigate the combined use of a nanocarbon (NC) suspension and low-dose 99mTc-MIBI for parathyroid localization during surgery in patients with secondary hyperparathyroidism (sHPT). METHODS: Between March 2010 and September 2015, 40 patients with sHPT were enrolled in this study and were randomized to receive either low-dose 99mTc-MIBI+NC (group I) or low-dose 99mTc-MIBI (group II). Pre- and post-operative serum levels of intact PTH (iPTH), calcium and phosphorus between groups were compared and the intra-operative radioactive counts of the parathyroid glands were measured. RESULTS: The post-operative iPTH level was significantly lower in patients of group I (24.2+/-31ng/L) than in those of group II (106+/-155ng/L) (P=0.03) while there were no significant differences in intra-operative parathyroid gland radioactive counts between the groups. The duration of the surgical procedure was shorter for patients of group I than patients of group II. There were no serious intra-operative or post operative complications. CONCLUSION: The combined use of an NC suspension and 99mTc-MIBI for patients with sHPT is strongly recommended for the localization of parathyroid glands during surgery and is likely to improve clinical outcomes for patients. PMID- 29336901 TI - Image analysis of the interarytenoid area to detect laryngopharyngeal reflux disease. PMID- 29336902 TI - Surgical management of pulsatile tinnitus secondary to jugular bulb or sigmoid sinus diverticulum with review of literature. AB - INTRODUCTION: Jugular bulb and sigmoid sinus anomalies are well-known causes of vascular pulsatile tinnitus. Common anomalies reported in the literature include high-riding and/or dehiscent jugular bulb, and sigmoid sinus dehiscence. However, cases of pulsatile tinnitus due to diverticulosis of the jugular bulb or sigmoid sinus are less commonly encountered, with the best management option yet to be established. In particular, reports on surgical management of pulsatile tinnitus caused by jugular bulb diverticulum have been lacking in the literature. OBJECTIVES: To report two cases of pulsatile tinnitus with jugular bulb and/or sigmoid sinus diverticulum, and their management strategies and outcomes. In this series, we describe the first reported successful case of pulsatile tinnitus due to jugular bulb diverticulum that was surgically-treated. SUBJECTS AND METHODS: Two patients diagnosed with either jugular bulb and/or sigmoid sinus diverticulum, who had presented to the Otolaryngology clinic with pulsatile tinnitus between 2016 and 2017, were studied. Demographic and clinical data were obtained, including their management details and clinical outcomes. RESULTS: Two cases (one with jugular bulb diverticulum and one with both sigmoid sinus and jugular bulb diverticula) underwent surgical intervention, and both had immediate resolution of pulsatile tinnitus post-operatively. This was sustained at subsequent follow-up visits at the outpatient clinic, and there were no major complications encountered for both cases intra- and post-operatively. CONCLUSION: Transmastoid reconstruction/resurfacing of jugular bulb and sigmoid sinus diverticulum with/without obliteration of the diverticulum is a safe and effective approach in the management of bothersome pulsatile tinnitus arising from these causes. PMID- 29336903 TI - One-year experience of a regional service model of teleconsultation for planning and treatment of complex thoracoabdominal aortic disease. AB - OBJECTIVE: The objective of this study was to report the methodology and 1-year experience of a regional service model of teleconsultation for planning and treatment of complex thoracoabdominal aortic disease (TAAD). METHODS: Complex TAADs without a feasible conventional surgical repair were prospectively evaluated by vascular surgeons of the same public health service (National Health System) located in a huge area of 22,994 km2 with 3.7 million inhabitants and 11 tertiary hospitals. Surgeons evaluated computed tomography scans and clinical details that were placed on a web platform (Google Drive; Google, Mountain View, Calif) and shared by all surgeons. Patients gave informed consent for the teleconsultation. The surgeon who submits a case discusses in detail his or her case and proposes a possible therapeutic strategy. The other surgeons suggest other solutions and options in terms of grafts, techniques, or access to be used. Computed tomography angiography, angiography, and clinical outcomes of cases are then presented at the following telemeetings, and a final agreement of the operative strategy is evaluated. Teleconsultation is performed using a web conference service (WebConference.com; Avaya Inc, Basking Ridge, NJ) every month. An inter-rater agreement statistic was calculated, and the kappa value was interpreted according to Altman's criteria for computed tomography angiography measurements. RESULTS: The rate of participation was constant (mean number of surgeons, 11; range, 9-15). Twenty-four complex TAAD cases were discussed for planning and operation during the study period. The interobserver reliability recorded was moderate (kappa = 0.41-0.60) to good (kappa = 0.61-0.80) for measurements of proximal and distal sealing and very good (kappa = 0.81-1) for detection of any target vessel angulation >60 degrees, significant calcification (circumferential), and thrombus presence (>50%). The concordance for planning and therapeutic strategy among all participants was complete in 16 cases. In one case, the consultation was decisive for creating an innovative therapeutic strategy; in the remaining seven cases, the strategy proposed by the patient's surgeon was changed completely after the discussion. Technical success was the same (100%) if concordance in planning was present initially or not. Overall 6 month mortality was 4%, 0% for those patients with initial concordance in planning vs 12% for those without initial concordance (P = .33). Surgery was always performed in a tertiary hospital by local surgeons, and in two cases (8%) external surgeons joined the local surgical team. CONCLUSIONS: Such a regional service of teleconsultation may be of value in standardizing the treatment and derived costs of complex TAADs in a huge region under the same health provider. The shared decision-making strategy may be of medical-legal value as well. PMID- 29336905 TI - Getting a good night sleep? The importance of recognizing and treating nocturnal hypokinesia in Parkinson's disease. AB - When Parkinson's disease (PD) patients are asked about the quality of their sleep, their answers are dominated by difficulties associated with impaired mobility in bed, medically referred to as nocturnal hypokinesia. Nocturnal hypokinesia is symptomatic from the mid-stage of the disease, affecting up to 70% of PD patients, and contributes to poor sleep quality, and increased carer burden. Here we explore four areas of nocturnal hypokinesia that are relevant to clinical practice, namely: manifestations and definition; clinical assessment and objective monitoring; etiologies and contributing factors; and evidence-based therapeutic approaches. In addition, we provide an operational definition of what constitutes nocturnal hypokinesia and outline different methods of assessment, ranging from clinical interviews and rating scales to objective night-time monitoring with inertial sensors. Optimal management of nocturnal hypokinesia in PD begins with recognizing its manifestation by inquiring about cardinal symptoms and contributing factors from, not only patients, but also carers, followed by formal assessment, and the application of individualized evidence-based treatment. Night-time dopaminergic treatment is the primary therapy; however, careful clinical judgment is required to balance the benefits with the potential adverse events related to nocturnal dopaminergic stimulation. Future studies are needed to explore the practicality of home-based objective assessment of nocturnal hypokinesia, new therapeutic options not limited to dopaminergic medications, and non-pharmacologic approaches, including training on compensatory strategies and bedroom adaptations. PMID- 29336904 TI - Bypass versus endovascular intervention for healing ischemic foot wounds secondary to tibial arterial disease. AB - OBJECTIVE: Pedal (inframalleolar) bypass is a long-standing therapy for tibial arterial disease in patients with ischemic tissue loss. Endovascular tibial intervention is an appealing alternative with lower risks of perioperative mortality or complications. Our objective was to compare the effectiveness of these two treatment modalities with respect to patency and limb-related clinical outcomes. METHODS: We performed a retrospective chart review of patients presenting between 2006 and 2013 with ischemic foot wounds and infrapopliteal arterial disease who underwent a revascularization procedure (either open surgical bypass to an inframalleolar target or endovascular tibial intervention). Data were collected on baseline demographics and comorbidities, procedural details, and postprocedure outcomes. The primary outcome was successful healing of the index wound, with mortality, major amputation, and patency assessed as secondary outcomes. RESULTS: We identified 417 patients who met our eligibility criteria; 105 underwent surgical bypass and 312 underwent endovascular intervention, with mean follow-up of 25.0 and 20.2 months, respectively (P = .08). The endovascular patients were older at baseline (P = .009), with higher rates of hyperlipidemia (P = .02), prior cerebrovascular accidents (P = .04), and smoking history (P = .04). Within 30 days postoperatively, there was no difference in mortality (P = .31), but bypass patients had longer hospital length of stay (P < .0001), higher rate of discharge to nursing facility (P < .001), and higher rates of myocardial infarctions (P = .03) and wound complications (P < .001). At 6 months, the rate of wound healing was 22.4% in the bypass group compared with 29.0% in the endovascular group (P = .02). At 1 year, survival was higher after bypass (86.2% vs 70.4%; P < .0001), but freedom from major amputation was similar (84.9% vs 82.8%; P = .42). Primary patency (53.1% vs 38.2%; P = .002) and primary assisted patency (76.6% vs 51.7%; P < .0001) were higher in the bypass group, but there was no difference in secondary patency (77.3% vs 73.8%; P = .13). CONCLUSIONS: Endovascular tibial intervention is associated with poorer primary patency but similar secondary patency and wound healing rates compared with the "gold standard" of surgical bypass to a pedal target. In patients with tibial arterial disease, endovascular intervention should be considered a lower risk alternative to pedal bypass that provides similar clinical outcomes. PMID- 29336906 TI - Progression of white matter damage in progressive supranuclear palsy with predominant parkinsonism. AB - INTRODUCTION: Progressive supranuclear palsy with predominant parkinsonism (PSP P) accounts for 14-35% of all PSP cases. A few cross-sectional MRI studies in PSP P showed a remarkable white matter (WM) damage. Progression of brain structural damage in these patients remains unknown. METHODS: Longitudinal clinical, cognitive and diffusion tensor (DT) MRI data were obtained over a mean 1.6 year follow up in 10 PSP-P patients. At study entry, patients were compared with 36 healthy controls. Voxelwise statistical analysis of white matter DT MRI data (mean, axial and radial diffusivity, and fractional anisotropy) was carried out using tract-based spatial statistics. RESULTS: During the 1.6 year follow up, PSP P patients showed significant decline of motor, cognitive and mood disturbances. DT MRI analysis revealed at baseline a widespread pattern of WM alterations. Over time, PSP-P patients exhibited progression of WM damage in supratentorial tracts compared to baseline. No WM changes were detected in cerebellar WM. CONCLUSIONS: In PSP-P patients, WM damage significantly progressed over time. Longitudinal DT MRI measures are a potential in vivo marker of disease progression in PSP-P. PMID- 29336907 TI - A Palliative Approach to Falls in Advanced Dementia. AB - Falls are viewed as a preventable cause of injury, functional loss, and death in older adults with dementia, and have been used as a marker of quality of care in long-term care facilities. Despite intensive intervention around fall prevention in these settings, falls and injury remain frequent, particularly among residents in the advanced stages of dementia. In this clinical review, we consider the common challenges and pitfalls in both the management of falls and the provision of palliative care in advanced dementia. We then describe a palliative approach to falls in advanced dementia that involves identifying individuals who would benefit from this care approach, framing falls and loss of mobility as a quality of life issue, and devising an individualized symptom assessment and management plan. A palliative approach can lead to recognition and acceptance that recurrent falls are often symptomatic of advanced dementia, and that not all falls are preventable. We conclude that falls in the advanced stage of dementia can be sentinel events indicating the need for a palliative approach to care. Rather than replace falls prevention activities, a palliative approach to falls prompts us to select dementia stage-appropriate interventions with a focus on symptom management, comfort, and dignity. PMID- 29336908 TI - Re: Sentinel node biopsy in desmoplastic thin melanoma: Histogenetic recommendations. PMID- 29336909 TI - [Non reported spa types in our country in Staphylococcus aureus from adult patients of a school hospital, Santa Fe - Argentina]. AB - Staphylococcus aureus is a pathogen associated a different kind of infection. Molecular markers are useful tools to study microbial epidemiology. Twenty two methicillin-resistant S. aureus (MRSA) and 23 methicillin-susceptible S. aureus (MSSA) were studied by mecA gene, SCCmec cassette, Panton Valentine leucocidin (PVL) and spa polymorphism. The clinical data patients were analyzed. MSSA was prevalent in samples different from skin and soft tissue (SST) and in hospitalized patients, whereas MRSA in SST. SCCmec type IV was predominant, followed by type I. Low presence of PVL was found. In MRSA 11 different types of spa were detected, t019 was the most frequent and associated with outpatient, 17 types were found in MSSA and t189 was prevalent. spa t002 was present in MSSA and MRSA. We found 11 types of spa not reported in our country. PMID- 29336910 TI - Bioconversion of hemicellulosic materials into ethanol by yeast, Pichia kudriavzevii 2-KLP1, isolated from industrial waste. AB - In the present work, a yeast strain Pichia kudriavzevii was identified on the basis of 18S rDNA, showing maximum growth at 30 degrees C and pH 7.0. Among all the complex polysaccharides used, wheat bran proved to be the best substrate as indicated by the maximum growth of the yeast strain. The yeast isolate was capable of producing xylanase both intra- and extra-cellularly, the dominant form being extracellular. The maximum enzyme activity was determined at pH 5.0 and at 50 degrees C. Na+, Mg2+ and Fe2+ presence caused a substantial increase in enzyme activity while a slight decrease (4.5%) was observed in the presence of Mn2+, Zn2+ and Cu2+. Pyruvate decarboxylase (PDC) and alcohol dehydrogenase (ADH) activities were assayed to confirm the presence of the ethanol pathway and PDC activity was much more pronounced (73%) compared to ADH activity (51%). The yeast strain can be employed to utilize hemicellulose containing agroindustrial residues for ethanol production. PMID- 29336911 TI - [Detection and characterization of Shiga toxin-producing Escherichia coli in children treated at an inter-zonal pediatric hospital in the city of La Plata]. AB - Shiga toxin-producing Escherichia coli (STEC) is a foodborne pathogen that can cause watery diarrhea, bloody diarrhea (BD), and hemolytic uremic syndrome (HUS). The objective of this study was to determine the phenotypic and genotypic profiles of STEC strains isolated from children with BD and HUS treated at a pediatric hospital in the city of La Plata in the period 2006-2012, and to establish the clonal relationship of O157:H7 isolates by pulsed field electrophoresis. The percentage of positive samples was 4.9% and 39.2% in patients with BD and HUS, respectively. Seventy-seven STEC strains from 10 different serotypes were isolated, with 100% colony recovery, O157:H7 being the most frequent (71.4%) serotype, followed by O145:NM (15.6%). An average of 98.2% of O157:H7 isolates belonged to biotype C and were sensitive to all the antibiotics tested. All of them (100%) carried genotype stx2, eae, fliCH7, ehxA, iha, efa, toxB, lpfA1-3 and lpfA2-2. When the clonal relationship of the O157:H7 strains was studied, a total of 42 patterns with at least 88% similarity were identified, and 6 clusters with identical profiles were established. The eae negative isolates belonged to serotypes O59:H19, O102:H6, O174:NM and O174:H21. The strains O59:H19 and O174:H21 were positive for the aggR gene. This study shows that STEC of different serotypes and genotypes circulate in the city of La Plata and surroundings. Despite the genetic diversity observed between the O157:H7 isolates, some were indistinguishable by the subtyping techniques used. PMID- 29336912 TI - [Bartonella henselae: Serological evidence in pediatric patients with clinical suspicion of cat scratch disease]. AB - Cat scratch disease (CSD) is caused by Bartonella henselae, which mainly affects children. The cat is the reservoir. The laboratory diagnosis is based on the detection of antibodies by the Indirect Immunofluorescence (IFI) assay. The objective of this study was to analyze the serological evidence of B. henselae infection in pediatric patients that met the clinical/epidemiological criteria for suspected CSD. We studied 92 patients, who were categorized into four serological groups: 1) IgG (+)/IgM(+), 31,5% (n=29); 2) IgG (-)/IgM(+), 10,9% (n=10); 3) IgG (+)/IgM(-), 9,8% (n=9); 4) IgG (-)/IgM(-), 47,8% (n=44). These findings aim to promote future works for investigating the seroprevalence of Bartonella spp. in Argentina, which will allow us to know the importance of this zoonosis in our population and to evaluate new cut-off points of the technique. PMID- 29336913 TI - Erratum to "A systematic review of in-hospital worsening heart failure as an endpoint in clinical investigations of therapy for acute heart failure" [Int. J. Cardiol. 250 (2018) 215-222]. PMID- 29336915 TI - Stable coronary artery disease and endothelial progenitor cells. PMID- 29336914 TI - Switching from clopidogrel to prasugrel to protect early invasive treatment in acute coronary syndromes: Results of the switch over trial. AB - BACKGROUND: Clopidogrel is used to pretreat patients with non-ST elevation acute coronary syndromes (NSTE-ACS), but prasugrel provides better platelet inhibition with improved outcome. However, switching from clopidogrel at the time of percutaneous coronary intervention (PCI) remains incompletely defined. Our aim was to compare the pharmacodynamic (PD) effects of 3 prasugrel loading doses (LDs; G1:10mg, G2: 30mg, and G3: 60mg) before PCI. A fourth group, continuing clopidogrel, served as control (G4). METHODS: 100 clopidogrel-pretreated patients were enrolled and blood collected before PCI, 30min, 1, 2, 4, 6, 24 and 48h thereafter. Platelet inhibition was measured by vasodilator-stimulated phosphoprotein phosphorylation (VASP) and Verify-Now assays. The end-points (EP) was the difference of PD effect at 4h between G3 and G4 (primary EP) with hierarchic evaluation between G2 and G1 versus G4 (secondary EP). A mixed-design ANOVA statistic was used to compare the four group scores over time. RESULTS: Baseline characteristics were balanced across the groups. Only patients receiving 60 and 30mg prasugrel LDs showed a rapid (<1h) and significant (p<0.001) platelet inhibition up to 48h after PCI.The primary EP was met by G3 (p<0.0001), but also G2 scored different (p<0-001) from G4 at 4h after PCI. Similar findings were observed with Verify-Now. No differences in 30-day clinical outcomes were observed across groups. CONCLUSIONS: Switching NSTE-ACS patients before PCI to prasugrel 60 or 30mg LDs determined a better and faster platelet inhibition than continuing clopidogrel, while PCI it is still underway. PMID- 29336916 TI - The outlook of prognostic indicators for the Takotsubo syndrome. PMID- 29336917 TI - Changing Practice Evaluation-Stage 1 Seminoma: Outcomes With Adjuvant Treatment Versus Surveillance: Risk Factors for Recurrence and Optimizing Follow-up Protocols-Experience From a Supraregional Center. AB - BACKGROUND: Stage 1 seminoma is frequently cured by radical orchiectomy; however, the management strategies after this diagnosis vary in terms of the use of adjuvant treatment and the nature of the follow-up protocols. We analyzed stage 1 seminomas treated in the Thames Valley Cancer Network for outcomes to determine whether any factors are predictive of recurrence. We also studied relapses to determine the optimal follow-up schedule and protocol. MATERIALS AND METHODS: Data were obtained from centers within the Thames Valley Cancer Network for a 12 year period from 2004 to 2016. We identified 501 patients with stage 1 seminoma. RESULTS: Relapses occurred in 6.2% of the patients receiving adjuvant treatment and 6.1% of those who did not. The only statistically significant predictive factor identified for relapse was rete testis invasion, and the risk was greater when only stromal rete invasion was included, rather than pagetoid as well. A trend was seen toward an increased risk with increased tumor size, but the difference was not statistically significant. Recurrences developed within the first 2 years after surgery in nearly 75% of cases and were identified through surveillance computed tomography scans in 54.8% of the patients. All relapses were treated curatively. CONCLUSION: Active surveillance leads to excellent outcomes for stage 1 seminoma; however, adjuvant treatment should be reserved for those with high-risk disease. Follow-up schedules should include computed tomography imaging during the first 3 years, long-term measurement of tumor markers, and mechanisms for patients to be seen promptly should symptoms of tumor recurrence occur. PMID- 29336918 TI - Current prevention and control of health care-associated infections in long-term care facilities for the elderly in Japan. AB - Residents of long-term care facilities for the elderly are vulnerable to health care-associated infections. However, compared to medical institutions, long-term care facilities for the elderly lag behind in health care-associated infection control and prevention. We conducted a epidemiologic study to clarify the current status of infection control in long-term care facilities for the elderly in Japan. A questionnaire survey on the aspects of infection prevention and control was developed according to SHEA/APIC guidelines and was distributed to 617 long term care facilities for the elderly in the province of Osaka during November 2016 and January 2017. The response rate was 16.9%. The incidence rates of health care-associated infection outbreaks and residents with health care-associated infections were 23.4 per 100 facility-years and 0.18 per 1,000 resident-days, respectively. Influenza and acute gastroenteritis were reported most frequently. Active surveillance to identify the carrier of multiple drug-resistant organisms was not common. The overall compliance with 21 items selected from the SHEA/APIC guidelines was approximately 79.2%. All facilities had infection control manuals and an assigned infection control professional. The economic burdens of infection control were approximately US$ 182.6 per resident-year during fiscal year 2015. Importantly, these data implied that physicians and nurses were actively contributed to higher SHEA/APIC guideline compliance rates and the advancement of infection control measures in long-term care facilities for the elderly. Key factors are discussed to further improve the infection control in long-term care facilities for the elderly, particularly from economic and social structural standpoints. PMID- 29336919 TI - Achalasia subtype differences based on clinical symptoms, radiographic findings, and stasis scores. PMID- 29336920 TI - Pediatric Nurse Practitioners' Perspectives on Health Care Transition From Pediatric to Adult Care. AB - INTRODUCTION: This study examined the perspectives of pediatric nurse practitioners (PNPs) regarding the needs of adolescents, parents/caregivers, clinicians, and institutions in the health care transition (HCT) process for adolescents/young adults. METHODS: PNPs (N = 170) participated in a luncheon for those interested in transition at an annual conference. Small groups discussed and recorded their perspectives related to health care transition from adolescent to adult services. Content analysis was used to analyze responses (Krippendorff, 2013). RESULTS: Four themes, Education, Health care system, Support, and Communication, emerged from the data analysis. PNPs identified health care informatics and adolescents' use of technology as additional critical aspects to be considered in health care transition. DISCUSSION: Opportunities and challenges identified by the PNPs are discussed to improve the quality and process of transitioning adolescents to adult services. This report will help National Association of Pediatric Nurse Practitioners formulate a new Health Care Transition Policy Statement for the organization. PMID- 29336921 TI - Legal and Policy Issues for LGBT Patients with Cancer or at Elevated Risk of Cancer. AB - OBJECTIVE: To understand the major legal and policy issues for lesbian, gay, bisexual and transgender (LGBT) cancer patients. DATA SOURCES: LGBT health policy research. CONCLUSION: Major policy issues include discrimination, lack of cultural competency and clinically appropriate care, insurance coverage, family recognition, and sexual orientation and gender identity data collection. IMPLICATIONS FOR NURSING PRACTICE: Nurses play a major role in providing affirming and competent care to LGBT cancer patients. Using correct names and pronouns with transgender patients, and collecting sexual orientation and gender identity data can send an affirming message to LGBT patients, as well as inform decision support and preventive screenings, and improve treatment outcomes. PMID- 29336922 TI - Segmentation-free direct tumor volume and metabolic activity estimation from PET scans. AB - Tumor volume and metabolic activity are two robust imaging biomarkers for predicting early therapy response in F-fluorodeoxyglucose (FDG) positron emission tomography (PET), which is a modality to image the distribution of radiotracers and thereby observe functional processes in the body. To date, estimation of these two biomarkers requires a lesion segmentation step. While the segmentation methods requiring extensive user interaction have obvious limitations in terms of time and reproducibility, automatically estimating activity from segmentation, which involves integrating intensity values over the volume is also suboptimal, since PET is an inherently noisy modality. Although many semi-automatic segmentation based methods have been developed, in this paper, we introduce a method which completely eliminates the segmentation step and directly estimates the volume and activity of the lesions. We trained two parallel ensemble models using locally extracted 3D patches from phantom images to estimate the activity and volume, which are derivatives of other important quantification metrics such as standardized uptake value (SUV) and total lesion glycolysis (TLG). For validation, we used 54 clinical images from the QIN Head and Neck collection on The Cancer Imaging Archive, as well as a set of 55 PET scans of the Elliptical Lung-Spine Body PhantomTMwith different levels of noise, four different reconstruction methods, and three different background activities, namely; air, water, and hot background. In the validation on phantom images, we achieved relative absolute error (RAE) of 5.11 % +/-3.5% and 5.7 % +/-5.25% for volume and activity estimation, respectively, which represents improvements of over 20% and 6% respectively, compared with the best competing methods. From the validation performed using clinical images, we found that the proposed method is capable of obtaining almost the same level of agreement with a group of trained experts, as a single trained expert is, indicating that the method has the potential to be a useful tool in clinical practice. PMID- 29336924 TI - Immunization of preterm infants with GSK's hexavalent combined diphtheria-tetanus acellular pertussis-hepatitis B-inactivated poliovirus-Haemophilus influenzae type b conjugate vaccine: A review of safety and immunogenicity. AB - BACKGROUND: Infants with history of prematurity (<37 weeks gestation) and low birth weight (LBW, <2500 g) are at high risk of infection due to functional immaturity of normal physical and immunological defense mechanisms. Despite current recommendations that infants with history of prematurity/LBW should receive routine immunization according to the same schedule and chronological age as full-term infants, immunization is often delayed. METHODS: Here we summarize 10 clinical studies and 15 years of post-marketing safety surveillance of GSK's hexavalent vaccine (DTPa-HBV-IPV/Hib), a combined diphtheria-tetanus-acellular pertussis-hepatitis-B-inactivated-poliovirus-Haemophilus influenzae-type-b (Hib) conjugate vaccine, when administered alone, or co-administered with pneumococcal conjugate, rotavirus, and meningococcal vaccines and respiratory syncytial virus IgG to infants with history of prematurity/LBW in clinical trials. RESULTS: At least 92.5% of infants with history of prematurity/LBW as young as 24 weeks gestation in clinical studies were seropositive to all vaccine antigens after 3 dose primary vaccination with GSK's hexavalent DTPa-HBV-IPV/Hib vaccine, with robust immune responses to booster vaccination. Seropositivity rates and antibody concentrations to hepatitis B and Hib appeared lower in infants with history of prematurity/LBW than term infants. Between 13-30% of medically stable infants with history of prematurity developed apnea after vaccination with GSK's hexavalent DTPa-HBV-IPV/Hib vaccine; usually after dose 1. The occurrence of post immunization cardiorespiratory events appears to be influenced by the severity of any underlying neonatal condition. Most cardiorespiratory events resolve spontaneously or require minimal intervention. GSK's hexavalent DTPa-HBV-IPV/Hib vaccine was well tolerated in co-administration regimens. CONCLUSION: GSK's hexavalent DTPa-HBV-IPV/Hib vaccine alone or co-administered with other pediatric vaccines has a clinically acceptable safety and immunogenicity profile when used in infants with history of prematurity/LBW for primary and booster vaccination. Additional studies are needed in very premature and very LBW infants. However, currently available data support using GSK's hexavalent DTPa-HBV-IPV/Hib vaccine to immunize infants with history of prematurity/LBW according to chronological age. PMID- 29336923 TI - Report on WHO meeting on immunization in older adults: Geneva, Switzerland, 22-23 March 2017. AB - Many industrialized countries have implemented routine immunization policies for older adults, but similar strategies have not been widely implemented in low- and middle-income countries (LMICs). In March 2017, the World Health Organization (WHO) convened a meeting to identify policies and activities to promote access to vaccination of older adults, specifically in LMICs. Participants included academic and industry researchers, funders, civil society organizations, implementers of global health interventions, and stakeholders from developing countries with adult immunization needs. These experts reviewed vaccine performance in older adults, the anticipated impact of adult vaccination programs, and the challenges and opportunities of building or strengthening an adult and older adult immunization platforms. Key conclusions of the meeting were that there is a need for discussion of new opportunities for vaccination of all adults as well as for vaccination of older adults, as reflected in the recent shift by WHO to a life-course approach to immunization; that immunization in adults should be viewed in the context of a much broader model based on an individual's abilities rather than chronological age; and that immunization beyond infancy is a global priority that can be successfully integrated with other interventions to promote healthy ageing. As WHO is looking ahead to a global Decade of Healthy Ageing starting in 2020, it will seek to define a roadmap for interdisciplinary collaborations to integrate immunization with improving access to preventive and other healthcare interventions for adults worldwide. PMID- 29336926 TI - Changes of Tumour-Node-Metastasis Staging in 2017: Concepts and Evolutions in the European and American Continents. PMID- 29336925 TI - A novel inactivated vaccine against Lawsonia intracellularis induces rapid induction of humoral immunity, reduction of bacterial shedding and provides robust gut barrier function. AB - Porcine proliferative ileitis is a major economic burden for the swine industry, affecting growing pigs and young adult pigs. In this study, the protective efficacy of an inactivated, injectable whole-cell bacteria vaccine against L. intracellularis - Porcilis(r) Ileitis was evaluated under field conditions. Eighty-five, three-week-old pigs on a commercial farrow-to-finish farm were vaccinated by the intramuscular route, either with a dose of injectable vaccine, or with saline. A subset of vaccinates and control pigs were necropsied at 21 days post-challenge. Incidence and severity of ileitis were evaluated by gross and microscopic observation of ileal tissues. Colonization of the gut after challenge was examined by L. intracellularis-specific immunohistochemistry, and qPCR of ileal scrapings. Integrity of the intestinal barrier was evaluated to quantify a range of intestinal markers including secreted mucin and intestinal alkaline phosphatase, and innate immune markers including Caspase-3 and Calprotectin. A second subset of pigs was monitored for fecal shedding of L. intracellularis, until resolution of shedding. Our investigation indicated that Porcilis Ileitis provided robust protection against ileitis, reduced bacterial shedding 15-fold (p < .05) and preserved normal gut barrier function in the face of an experimental challenge with virulent L. intracellularis. PMID- 29336927 TI - Efficacy and Safety of Sacral and Percutaneous Tibial Neuromodulation in Non neurogenic Lower Urinary Tract Dysfunction and Chronic Pelvic Pain: A Systematic Review of the Literature. AB - CONTEXT: Neuromodulation is considered in patients with non-neurogenic lower urinary tract dysfunction (LUTD) not responsive to conservative treatment. OBJECTIVE: To systematically review the available studies on efficacy and safety of sacral neuromodulation (SNM) and percutaneous tibial nerve stimulation (PTNS) in non-neurogenic LUTDs not responsive to conservative treatments. EVIDENCE ACQUISITION: A literature research was conducted in PubMed/Medline and Scopus, restricted to articles in English, published between January 1998 and June 2017, with at least 20 patients and 6 mo of follow-up. EVIDENCE SYNTHESIS: Twenty-one reports were identified. Concerning SNM, the improvement of >=50% in leakage episodes ranged widely between 29% and 76%. Overall dry rate ranged between 43% and 56%. Overall success/improvement rate in PTNS varied between 54% and 59%. Symptom improvement or efficacy in interstitial cystitis/bladder pain syndrome patients appeared to be lower compared with other indications in both techniques. Safety data showed fewer side effects in patients submitted to PTNS. CONCLUSIONS: Neuromodulation gives good results and is a safe therapy for patients with overactive bladder or chronic nonobstructive urinary retention with long-lasting efficacy. Moreover, PTNS has been shown to have good success rates and fewer side effects compared with SNM. These data have to be confirmed with long-term follow up. PATIENT SUMMARY: Sacral neuromodulation can improve low urinary tract symptoms in selected patients; it appears to be a safe therapy for nonresponders to standard medical therapies. Percutaneous tibial nerve stimulation (PTNS) is a less invasive technique that gives good results in short time with fewer side effects. However, we must consider that PTNS has not been tested in the long term and results are lower if compared with SNM. PMID- 29336928 TI - Tackling the recurrence of Clostridium difficile infection. AB - The pathogenesis of recurrent Clostridium difficile infection (CDI) is still poorly understood. The risk of recurrence is approximately 20% after an initial CDI episode and dramatically increases with subsequent CDI recurrences. Several factors may play a role in recurrent CDI (rCDI), including conditions influencing germination, metabolic pathways that influence toxin production of C. difficile, and the microbiota composition offering protection against colonization and disease caused by C. difficile. Paradoxically, the currently recommended treatment for acute symptomatic CDI, i.e. metronidazole or vancomycin, can cause modification of the intestinal flora. Indeed, administration of anti-CDI antibiotics leads to suppression of C. difficile, along with collateral damage of the protective intestinal microbiota and opening of a "window of vulnerability" for recurrence. Host factors also have a prominent role, including innate and acquired humoral immunity, i.e. passive antibodies administration or active vaccination as a prevention strategy. They play a crucial role in the protection against severe and recurrent CDI. The assessment of risk factors of recurrence and modeling prediction scores could help in preventing the troublesome experience of CDI recurrence. Six studies have methodologically assessed prediction scores for rCDI. However, the definition of recurrence was heterogeneous, external validation was often not performed, and immunological factors were often not considered. There is a need for further studies on the pathophysiology of recurrence to design models for prediction that are sound and applicable in clinical practice. PMID- 29336929 TI - Economic burden and cost-effective management of Clostridium difficile infections. AB - Clostridium difficile infection (CDI) is the most important cause of healthcare associated infectious diarrhea in industrialized countries. We performed a literature review of the overall economic burden of initial and recurrent CDI as well as of the cost-effectiveness of the various treatment strategies applied in these settings. Even though analysis of health economic data is complicated by the limited comparability of results, our review identified several internationally consistent results. Authors from different countries have shown that recurrent CDI disproportionally contributes to the overall economic burden of CDI and therefore offers considerable saving potential. Subsequent cost effectiveness analyses almost exclusively identified fidaxomicin as the preferred treatment option for initial CDI and fecal microbiota transplant (FMT) for recurrent CDI. Among the various FMT protocols, optimum results were obtained using early colonoscopy-based FMT. PMID- 29336930 TI - Exploring ways to improve CDI outcomes. AB - Clostridium difficile is an anaerobic spore-forming Gram-positive bacillus recognized as an evolving international health problem. Metronidazole and vancomycin were - until recently - the only drugs available to treat C. difficile infection (CDI). Better knowledge of the pathophysiology and the development of new drugs completely modified the management of initial episodes and recurrences of CDI. Fidaxomicin significantly reduced recurrences compared with vancomycin. New drugs are also currently evaluated (cadazolid, surotomycin, ridinilazole, rifaximin). Gut microbiota homeostasis was clearly shown to be a key determinant in recurrences as demonstrated by the development of gut microbiota transplantation and alternative microbiota substitution. Passive immunotherapy and vaccinal approaches are also currently being evaluated. In conclusion, CDI treatment has evolved with the development of new therapeutic pathways which now need to be implemented in international guidelines. PMID- 29336931 TI - Impact of crack cocaine use on the occurrence of oral lesions and micronuclei. AB - The aim of this study was to investigate the occurrence of oral lesions and micronuclei in crack cocaine users. A cross-sectional study was conducted involving 106 crack users and 106 non-users matched for age, sex, and tobacco use. Socio-demographic characteristics, the consumption of psychoactive substances, and the occurrence of fundamental lesions were investigated. Cellular changes in the oral mucosa (karyolysis, karyorrhexis, 'broken egg' events, and micronuclei) were determined by exfoliative cytology for 54 participants in each group. Crack users had a greater occurrence of fundamental lesions (P=0.001). Furthermore, they had higher mean occurrences of micronuclei (17.25 vs. 3.80), karyolysis (12.39 vs. 9.46), and karyorrhexis (30.39 vs. 10.11) (number per 1000 cells) than non-users (all P<0.05). No difference between the groups was found with regard to broken egg events (P>0.05). After controlling for confounding variables, fundamental lesions were 2.02-fold more frequent and micronuclei were 3.54-fold more frequent in crack users. Crack use was found to be associated with clinical and cellular changes in the oral mucosa. These findings can contribute to the planning of health care for individuals who are dependent on street drugs. PMID- 29336932 TI - Orthognathic surgery in Melnick-Needles syndrome: a review of the literature and report of two siblings. AB - Melnick-Needles syndrome (MNS) is a rare congenital X-linked dominant skeletal dysplasia, characterized by exophthalmos, a prominent forehead, and mandibular hypoplasia and retrognathism. Dental features may include anodontia, hypodontia, or oligodontia. Increased collagen content, unpredictable collagen synthesis, and abnormal bony architecture have raised concerns regarding bone splitting intraoperatively and bone healing postoperatively. This report describes the cases of two sisters with MNS, who successfully underwent orthognathic surgery consisting of bilateral mandibular ramus osteotomies combined with advancement genioplasty and iliac crest bone grafting, to correct the classical MNS facial deformity of mandibular retrognathia. PMID- 29336933 TI - Left vocal cord paralysis after patent ductus arteriosus ligation: A systematic review. AB - CONTEXT: Extremely premature (EP) infants are at increased risk of left vocal cord paralysis (LVCP) following surgery for patent ductus arteriosus (PDA). OBJECTIVE: A Systematical Review was conducted to investigate the incidence and outcomes of LVCP after PDA ligation in EP born infants. DATA SOURCES: Searches were performed in Cochrane, Medline, Embase, Cinahl and PsycInfo. STUDY SELECTION: Studies describing EP infants undergoing PDA surgery and reporting incidence of LVCP were included. DATA EXTRACTION AND SYNTHESIS: Study details, demographics, incidence of LVCP, diagnostic method and reported outcomes were extracted. DerSimonian and Laird random effect models with inverse variance weighting were used for all analyses. STUDY APPRAISAL: The Newcastle-Ottawa scale for observational studies was used for quality assessment. RESULTS: 21 publications including 2067 infants were studied. The overall pooled summary estimate of LVCP incidence was 9.0% (95% CI 5.0, 15.0). However, the pooled incidence increased to 32% when only infants examined with laryngoscopy were included. The overall risk ratio for negative outcomes was higher in the LVCP group (2.20, 95% CI 1.69, 2.88, p = 0.01) compared to the non-LVCP-group. CONCLUSIONS: Reported incidence of LVCP varies widely. This may be explained by differences in study designs and lack of routine vocal cords postoperative assessment. LVCP is associated with negative outcomes in EP infants. The understanding of long-term outcomes is scarce. Routine laryngoscopy may be necessary to identify all cases of LVCP, and to provide correct handling for infants with LVCP. PMID- 29336934 TI - Determination of recombination and polarity correction factors, kS and kP, for small cylindrical ionization chambers PTW 31021 and PTW 31022 in pulsed filtered and unfiltered beams. AB - The aim of this technical communication is to provide correction factors for recombination and polarity effect for two new ionization chambers PTW PinPoint 3D (type 31022) and PTW Semiflex 3D (type 31021). The correction factors provided are for the (based on the) German DIN 6800-2 dosimetry protocol and the AAPM TG51 protocol. The measurements were made in filtered and unfiltered high-energy photon beams in a water equivalent phantom at maximum depth of the PDD and a field size on the surface of 10cm*10cm. The design of the new chamber types leads to an ion collection efficiency and a polarity effect that are well within the specifications requested by pertinent dosimetry protocols including the addendum of TG-51. It was confirmed that the recombination effect of both chambers mainly depends on dose per pulse and is independent of the filtration of the photon beam. PMID- 29336935 TI - Update on the laboratory investigation of dyslipidemias. AB - The role of the clinical laboratory is evolving to provide more information to clinicians to assess cardiovascular disease (CVD) risk and target therapy more effectively. Current routine methods to measure LDL-cholesterol (LDL-C), the Friedewald calculation, ultracentrifugation, electrophoresis and homogeneous direct methods have established limitations. Studies suggest that LDL and HDL size or particle concentration are alternative methods to predict future CVD risk. At this time there is no consensus role for lipoprotein particle or subclasses in CVD risk assessment. LDL and HDL particle concentration are measured by several methods, namely gradient gel electrophoresis, ultracentrifugation-vertical auto profile, nuclear magnetic resonance and ion mobility. It has been suggested that HDL functional assays may be better predictors of CVD risk. To assess the issue of lipoprotein subclasses/particles and HDL function as potential CVD risk markers robust, simple, validated analytical methods are required. In patients with small dense LDL particles, even a perfect measure of LDL-C will not reflect LDL particle concentration. Non-HDL-C is an alternative measurement and includes VLDL and CM remnant cholesterol and LDL-C. However, apolipoprotein B measurement may more accurately reflect LDL particle numbers. Non-fasting lipid measurements have many practical advantages. Defining thresholds for treatment with new measurements of CVD risk remain a challenge. In families with genetic variants, ApoCIII and lipoprotein (a) may be additional risk factors. Recognition of familial causes of dyslipidemias and diagnosis in childhood will result in early treatment. This review discusses the limitations in current laboratory technologies to predict CVD risk and reviews the evidence for emergent approaches using newer biomarkers in clinical practice. PMID- 29336936 TI - Very unusual "needle- and pencil-like" uric acid crystals in the urine unmasked by infrared spectroscopy investigation. AB - In this paper we describe a case with very unusual "needle- and pencil-like" crystals, partly similar to those reported by other investigators, who considered them as due to uric acid. Quite importantly, infrared spectroscopy investigation which, to our knowledge, we have been the first to perform on this type of crystals, confirmed their nature as uric acid structures. This case demonstrates that the planet of urinary crystals still has several unknown facets and still deserves exploration. PMID- 29336937 TI - The combination of stereo-EEG and radiofrequency ablation. AB - SEEG-guided radiofrequency thermocoagulation (SEEG-guided RFTC), a combination of Stereo-electroencephalography (SEEG) and radiofrequency thermocoagulation (RFTC), has been performed since 2001 in drug resistant epilepsy. The interest of this procedure is to aim at total or partial destruction of the epileptogenic zone, as tailored in each individual patient by the SEEG exploration. These multiple SEEG guided RFTC lesions of epileptic foci are produced by using a radiofrequency generator connected to the electrode contacts. This review summarizes the results of SEEG-guided RFTC reported in 251 patients. This procedure appears to be safe since complications are rare, minor and usually reversible, which is explained by the use of functional electrical stimulations before RFTC. It makes it also possible to produce RF lesions located very close to cortical areas having a high functional value or being poorly accessible to a conventional surgical procedure. Even if seizure outcome is not as good as results of surgery, 41% of the patients are responders at 12 months with several seizure free patients. The benefit-risk ratio of the SEEG-guided RFTC procedure proved to be particularly favorable for the patients presenting with epileptogenic cortical malformation of development (nodular heterotopy as well as focal cortical dysplasia) and for those in whom surgery is not feasible or risky. For the patients in whom surgery is feasible, SEEG-guided RFTC could be used as a first step, as a predictive therapeutic test before resective surgery. PMID- 29336938 TI - Determination of the energy requirements in mechanically ventilated critically ill elderly patients in different BMI groups using the Harris-Benedict equation. AB - BACKGROUND: Due to studies on calorie requirement in mechanically ventilated critically ill elderly patients are few, and indirect calorimetry (IC) is not available in every intensive care unit (ICU). The aim of this study was to compare IC and Harris-Benedict (HB) predictive equation in different BMI groups. METHODS: A total of 177 mechanically ventilated critically ill elderly patients (?65 years old) underwent IC for measured resting energy expenditure (MREE). Estimated calorie requirement was calculated by the HB equation, using actual body weight (ABW) and ideal body weight (IBW) separately. Patients were divided into four BMI groups. One-way ANOVA and Pearson's correlation coefficient were used for statistical analyses. RESULTS: The mean MREE was 1443.6 +/- 318.2 kcal/day, HB(ABW) was 1110.9 +/- 177.0 kcal/day and HB(IBW) was 1101.5 +/- 113.1 kcal/day. The stress factor (SFA = MREE / HB(ABW)) was 1.43 +/- 0.26 for the underweight, 1.30 +/- 0.27 for the normal weight, 1.20 +/- 0.19 for the overweight, and 1.20 +/- 0.31 for the obese. The SFI (SFI = MREE / HB(IBW)) was 1.24 +/- 0.24 for the underweight, 1.31 +/- 0.26 for the normal weight, 1.36 +/- 0.21 for the overweight, and 1.52 +/- 0.39 for the obese. MREE had significant correlation both with REE(ABW) = HB(ABW) * SFA (r = 0.46; P < 0.0001) and REE(IBW) = HB(IBW) * SFI (r = 0.43; P < 0.0001). CONCLUSION: IC is the best accurate method for assessing calorie requirement of mechanically ventilated critically ill elderly patients. When IC is not available, using the predictive HB equation is an alternative choice. Calorie requirement can be predicted by HB(ABW) * 1.20-1.43 for critically ill elderly patients according to different BMI groups, or using HB(IBW) * 1.24-1.52 for patients with edema, ascites or no available body weight data. PMID- 29336939 TI - Examination of serum hematinics and autoantibodies is important for treatment of recurrent aphthous stomatitis. PMID- 29336940 TI - Myeloperoxidase: Its role for host defense, inflammation, and neutrophil function. AB - Myeloperoxidase (MPO) is a heme-containing peroxidase expressed mainly in neutrophils and to a lesser degree in monocytes. In the presence of hydrogen peroxide and halides, MPO catalyzes the formation of reactive oxygen intermediates, including hypochlorous acid (HOCl). The MPO/HOCl system plays an important role in microbial killing by neutrophils. In addition, MPO has been demonstrated to be a local mediator of tissue damage and the resulting inflammation in various inflammatory diseases. These findings have implicated MPO as an important therapeutic target in the treatment of inflammatory conditions. In contrast to its injurious effects at sites of inflammation, recent studies using animal models of various inflammatory diseases have demonstrated that MPO deficiency results in the exaggeration of inflammatory response, and that it affects neutrophil functions including cytokine production. Given these diverse effects, a growing interest has emerged in the role of this well-studied enzyme in health and disease. PMID- 29336941 TI - Age-specific excess mortality patterns and transmissibility during the 1889-1890 influenza pandemic in Madrid, Spain. AB - PURPOSE: Although the 1889-1890 influenza pandemic was one of the most important epidemic events of the 19th century, little is known about the mortality impact of this pandemic based on detailed respiratory mortality data sets. METHODS: We estimated excess mortality rates for the 1889-1890 pandemic in Madrid from high resolution respiratory and all-cause individual-level mortality data retrieved from the Gazeta de Madrid, the Official Bulletin of the Spanish government. We also generated estimates of the reproduction number from the early growth phase of the pandemic. RESULTS: The main pandemic wave in Madrid was evident from respiratory and all-cause mortality rates during the winter of 1889-1890. Our estimates of excess mortality for this pandemic were 58.3 per 10,000 for all cause mortality and 44.5 per 10,000 for respiratory mortality. Age-specific excess mortality rates displayed a J-shape pattern, with school children aged 5 14 years experiencing the lowest respiratory excess death rates (8.8 excess respiratory deaths per 10,000), whereas older populations aged greater than or equal to 70 years had the highest rates (367.9 per 10,000). Although seniors experienced the highest absolute excess death rates, the standardized mortality ratio was highest among young adults aged 15-24 years. The early growth phase of the pandemic displayed dynamics consistent with an exponentially growing transmission process. Using the generalized-growth method, we estimated the reproduction number in the range of 1.2-1.3 assuming a 3-day mean generation interval and of 1.3-1.5 assuming a 4-day mean generation interval. CONCLUSIONS: Our study adds to our understanding of the mortality impact and transmissibility of the 1889-1890 influenza pandemic using detailed individual-level mortality data sets. More quantitative studies are needed to quantify the variability of the mortality impact of this understudied pandemic at regional and global scales. PMID- 29336942 TI - Malleable Penile Implant Is an Effective Therapeutic Option in Men With Peyronie's Disease and Erectile Dysfunction. AB - BACKGROUND: The inflatable penile prosthesis (IPP) is typically the preferred implant for Peyronie's disease (PD) and malleable penile prostheses (MPPs) have been discouraged. AIMS: To evaluate the effectiveness and patient satisfaction of the MPP vs IPP in patients with PD. METHODS: Men with PD and erectile dysfunction who elected for penile implant surgery constituted the study population. Preoperatively, demographic and comorbidity parameters were recorded. Curvature was measured with a goniometer at maximum rigidity after intracavernosal injection of a vasoactive agent. Postoperatively, overall satisfaction was measured at 3, 6, 12, and 24 months on 5-point Likert scale from 1 (dissatisfied) to 5 (very satisfied). RESULTS: 166 men with a mean age of 59 +/- 10 years were analyzed. The mean preoperative curvature in the entire cohort was 65 degrees (range = 30-130 degrees ). 94% of patients with MPP had total resolution of their curvature at the end of the operation, whereas 8 patients (6%) had residual curvature (25-40 degrees ). In the IPP group 25 of 30 (83.3%) had a straight penis at the end of surgery, whereas 5 of 30 (16.7%) had residual curvature, with the mean magnitude being 33 degrees in the MPP group and 30 degrees in the IPP group. 86% of all patients had diabetes. There were no differences between the 2 implant groups in age, hemoglobin A1c, body mass index, or smoking status. The mean patient satisfaction was 4.42 +/- 0.70 (range = 2-5) and there was no difference between the 2 groups. The mean follow-up period was 23.4 months (range = 6-29 months). CONCLUSION: We found that the MPP is as effective as the IPP in curvature correction in patients with PD, with similar patient satisfaction for the 2 groups. Habous M, Farag M, Tealab A, et al. Malleable Penile Implant Is an Effective Therapeutic Option in Men With Peyronie's Disease and Erectile Dysfunction. Sex Med 2018;6:24-29. PMID- 29336943 TI - One time quantitative PCR detection of Pseudomonas aeruginosa to discriminate intermittent from chronic infection in cystic fibrosis. AB - BACKGROUND: Chronic airway infection with Pseudomonas aeruginosa is a major risk factor of progression of lung disease in patients with cystic fibrosis (CF). Chronic P. aeruginosa infection evolves from intermittent infection that is amenable to antibiotic eradication, whereas chronically adapted P. aeruginosa becomes resistant to antibiotic therapy. Discrimination of intermittent versus chronic infection is therefore of high therapeutic relevance, yet the available diagnostic methods are only partly satisfactory. The aim of the present study was, therefore, to evaluate the usage of quantitative PCR (qPCR) to measure pathogen abundance and to discriminate between intermittent and chronic Pseudomonas infection in patients with CF. METHOD: Using an established qPCR protocol, we analyzed the abundance of P. aeruginosa in 141 throats swabs and 238 sputa from CF patients with intermittent or chronic infection with P. aeruginosa, as determined by standard culture based diagnostics. RESULTS: We observed a large increase of abundance of P. aeruginosa in throat swabs and sputum samples from patients with chronic compared to intermittent infections with P. aeruginosa. The data show that abundance of P. aeruginosa as measured by qPCR is a valuable tool to discriminate intermittent from chronic infection. Of note, P. aeruginosa burden seems more sensitive than mucoidity phenotype to discriminate chronic from intermittent strains. Furthermore we observed that molecular detection in throat swabs was linked to a viable culture in the sputum when sputum was available. This result is of special interest in young patients with cystic fibrosis that often cannot expectorate sputum. We also observed that qPCR in comparison to culture detected the infection earlier. CONCLUSION: The results suggest that qPCR detection and quantification of P. aeruginosa is a precious tool to be added to the diagnostic toolbox in cystic fibrosis. PMID- 29336944 TI - Editorial commentary: Newborn screening for Fabry disease: Too much too soon? PMID- 29336945 TI - Current treatment of significant left main coronary artery disease: A review. AB - Though infrequent, left main stenosis has a major prognostic impact. The management of left main disease has evolved over the last few decades with the growing evidence of the efficacy and safety of percutaneous interventions, as attested by the most recent trials. However, mastery of the technical aspects of left main bifurcation stenting is essential in ensuring optimal results. This review focuses on recent data concerning left main angioplasty results as well as the current technical approaches. PMID- 29336946 TI - LDL cholesterol: How low to go? AB - Epidemiology and the results of large-scale outcome trials indicate that the association of LDL with atherosclerotic cardiovascular disease is causal, and continuous not only across levels seen in the general population but also down to sub-physiological values. There is no scientific basis, therefore, to set a target or 'floor' for LDL cholesterol lowering, and this presents a clinical and conceptual dilemma for prescribers, patients, and payers. With the advent of powerful agents such as proprotein convertase/subtilisin kexin type 9 (PCSK9) inhibitors, LDL cholesterol can be lowered profoundly but health economic constraints mandate that this therapeutic approach needs to be selective. Based on the need to maximize the absolute risk reduction when prescribing combination lipid-lowering therapy, it is appropriate to prioritize patients with the highest risk (aggressive and established CVD) who will obtain the highest benefit, that is, those with elevated LDL cholesterol on optimized statin therapy. PMID- 29336947 TI - Characterization of goose SPMS: Molecular characterization and expression profiling of SPMS in the goose ovary. AB - Spermine synthase (SPMS), which converts spermidine into spermine, is essential for normal cell growth and development processes in humans and other mammals, but the molecular characterization and expression profiling of the SPMS gene remain undetermined in goose tissues and ovarian follicles. In this study, the SPMS cDNA sequence of the Sichuan white goose was cloned and analysed, and SPMS mRNA expression was profiled in various tissues and ovarian follicles. The results showed that the open reading frame of the SPMS cDNA sequence was 1092 bp in length, encoding 363 amino acids with a molecular weight of 41 kDa. Among all the examined tissues, SPMS expression was highest in the spleen and cerebrum and lowest in the breast and thigh muscles. SPMS expression in the F1 follicle was significantly higher than that in the POF (except for POF2) (P < 0.05). Our results indicate that SPMS might play an important role in follicular development and ovulation. PMID- 29336948 TI - The effect of a potentially tamper-resistant oxycodone formulation on opioid use and harm: main findings of the National Opioid Medications Abuse Deterrence (NOMAD) study. AB - BACKGROUND: Escalation of pharmaceutical opioid use and harm in North America is well-documented, with similar issues emerging in Australia. One response is the development of tamper-resistant formulations of opioids. A potentially tamper resistant formulation of controlled-release oxycodone was introduced in Australia in April, 2014, rapidly replacing the non-tamper-resistant formulation. Our study is the most systematic and comprehensive examination of the impact of a new opioid formulation to date, assessing the effect of tamper-resistant formulation of controlled-release oxycodone on population-level opioid use and opioid-related harm (ie, overdose, help-seeking, and treatment-seeking); and opioid use, tampering, and preference for the tamper-resistant formulation of controlled release oxycodone compared with other drugs or formulations among sentinel populations likely to tamper with pharmaceutical opioids. METHODS: We conducted interrupted time-series analyses of opioid sales data and multiple routinely collected health datasets, followed up a cohort of people who tamper with pharmaceutical opioids before and after the introduction of the tamper-resistant formulation of controlled-release oxycodone, and analysed annual surveys of people who inject drugs. Data were collected from several Australian states: New South Wales, South Australia, and Tasmania. Meta-analyses (weighted Z tests) were conducted to synthesise across data sources providing evidence for a given indicator. FINDINGS: At the population level, we found reduced sales of higher strengths of controlled-release oxycodone and increased sales of other oxycodone formulations. No significant effect was observed among population-level indicators of opioid overdose, or help or treatment-seeking. Mortality data were not available for inclusion at the time of our study. Meta-analyses across sentinel populations (ie, prospective cohort, surveys of people who inject drugs, and clients of supervised injecting facilities or needle and syringe programmes) indicated reduced controlled-release oxycodone use via tampering (mainly injection), with no evidence of switching to heroin or other drug use. INTERPRETATION: This formulation of controlled-release oxycodone reduced tampering with pharmaceutical opioids among people who inject drugs, but did not affect population-level opioid use or harm. FUNDING: Mundipharma Australia, the Australian Government, and the National Health and Medical Research Council. PMID- 29336949 TI - Evaluating difficult-to-crush opioids in the community. PMID- 29336950 TI - Daratumumab: Therapeutic asset, biological trap! AB - OBJECTIVES: Recently, daratumumab has been included in the therapeutic strategies for myeloma patients. This molecule is an antibody directed against CD38, strongly expressed on plasma cells. Nevertheless, as CD38 is also present on erythrocyte membrane, daratumumab interferes with immunohaematological tests, complicating the selection of compatible blood. METHODS: A total of 14 patients treated by daratumumab have been followed in our transfusion laboratory. Among them, 11 have been transfused. Dithiotreitol (DTT) has been used to inhibit the daratumumab's interference, in the pre-transfusion tests (irregular antibody screening and cross-match). RESULTS: The red blood cell treatment with DTT has been very efficacious to inhibit the daratumumab's interference in 13 patients out of 14. Some precautionary measures had to be taken into account, especially the pH and the storage conditions. An extended pheno/genotype was an additional security element in the selection of compatible blood. To simplify and to optimize the laboratory practices, a decisional flow chart has been written. CONCLUSION: DTT red blood cell treatment is very useful and efficacious in the pre-transfusion tests of patients treated with daratumumab. It allows to avoid the selection of blood bags only on the basis of an extended pheno/genotype, what is more secure and more ethical with respect to other at higher risk patients. A clear decisional flow chart allows a quality assurance gait. Collaboration with physicians is essential. PMID- 29336952 TI - The Safe Use of Medication by Adolescents Living on Campus. PMID- 29336951 TI - Design, synthesis and evaluation against Chikungunya virus of novel small molecule antiviral agents. AB - Chikungunya virus is a re-emerging arbovirus transmitted to humans by mosquitoes, responsible for an acute flu-like illness associated with debilitating arthralgia, which can persist for several months or become chronic. In recent years, this viral infection has spread worldwide with a previously unknown virulence. To date, no specific antivirals treatments nor vaccines are available against this important pathogen. Starting from the structures of two antiviral hits previously identified in our research group with in silico techniques, this work describes the design and preparation of 31 novel structural analogues, with which different pharmacophoric features of the two hits have been explored and correlated with the inhibition of Chikungunya virus replication in cells. Structure-activity relationships were elucidated for the original scaffolds, and different novel antiviral compounds with EC50 values in the low micromolar range were identified. This work provides the foundation for further investigation of these promising novel structures as antiviral agents against Chikungunya virus. PMID- 29336953 TI - Effective use of iron-aluminum rich laterite based soil mixture for treatment of landfill leachate. AB - Landfill leachate poses environmental threats worldwide and causes severe issues on adjacent water bodies and soil by direct discharge. The primary objective of this study is to analyze the efficient use of compost and laterite mixtures (0, 10, 20, 30 and 40 wt% compost/laterite) on leachate treatment and to investigate the associated removal efficiencies under different sorption processes. Therefore, in the experimental design, laterite is used for providing adsorption characteristics, and compost for activating biological properties of the filter. The filtering process is continued until major physical changes occur in the filter at approximately 100 days. The raw leachate used for the experiment shows higher average values for many analyzed parameters. Parameters for the experiment are selected based on their availability in raw leachate in the Sri Lanka. During filtering, removal efficiencies of BOD (>90%), COD (>85%), phosphate (>90%) and nitrate (75-95%) show higher values for all filters. These removals are mainly associated with biodegradation, which is activated by the added compost. Perhaps the removal of nitrate steadily increases with time, which indicates in denitrification by the added excess carbon from the leachate. The removal of total suspended solids (TSS) is moderate to high, but conversely, the electric conductivity (EC) is unsteady, indicating an association between iron exchange and carbonate degradation. A very high removal efficiency is reported in Fe (90 100%), and wide ranges of efficiencies in Mn (30-90%), Cu (45-85%), Ni (30-93%), Cd (37-98%), Zn (15-98%), and Pb (35-98%) involve heterogeneous sorption processes. Furthermore, the normalization of raw leachate by the liquid filtrate has apparent improvements. The differences (p > .05) in removal efficiencies between the filters are significant. It can be concluded that the filter with laterite mixed with 20% of compost has the optimum conditions. Further, the Fourier-transforminfrared (FT-IR) models for filter media conclude multiple sorptions and reveal evidence on vacant sites. X-ray diffraction (XRD) analyses indicate secondary minerals gibbsite, hematite, goethite and kaolinite as the major minerals that involved on the sorption process. PMID- 29336954 TI - High voltage fragmentation of composites from secondary raw materials - Potential and limitations. AB - The comminution of composites for liberation of valuable components is a costly and energy-intensive process within the recycling of spent products. It therefore is continuously studied and optimized. In addition to conventional mechanical comminution innovative new principles for size reduction have been developed. One is the use of high voltage (HV) pulses, which is known to be a technology selectively liberating along phase boundaries. This technology offers the advantage of targeted liberation, preventing overgrinding of the material and thus improving the overall processing as well as product quality. In this study, the high voltage fragmentation of three different non-brittle composites (galvanized plastics, carbon fibre composites, electrode foils from Li-ion batteries) was investigated. The influence of pulse rate, number of pulses and filling level on the liberation and efficiency of comminution is discussed. Using the guideline VDI 2225 HV, fragmentation is compared to conventional mechanical comminution with respect to numerous criteria such as cost, throughput, energy consumption, availability and scalability. It was found that at current state of development, HV fragmentation cannot compete with mechanical comminution beyond laboratory scale. PMID- 29336955 TI - Assessing Gaps in the HIV Care Continuum in Young Men Who Have Sex With Men: The P18 Cohort Study. PMID- 29336957 TI - Human-Snake Encounters and Folk Remedies in Nepal. PMID- 29336956 TI - Reverse transcription loop-mediated isothermal amplification for species-specific detection of tomato chlorotic spot orthotospovirus. AB - Tomato chlorotic spot orthotospovirus (TCSV) is an emerging orthotospovirus that can cause severe disease on tomato plants. There are at least four orthotospoviruses infecting tomato, and mixed infection of two or more orthotospoviruses in a single tomato plant is quite common in the field. With similarity in the symptomatology and cross serological reactivity among tomato infecting orthotospoviruses, especially between TCSV and groundnut ringspot orthotospovirus (GRSV), the current serological tests could not achieve definite and accurate species-specific determination in disease diagnosis. Here, a one step reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed for TCSV. Under optimum conditions, the virus was detected in as little as 0.2 ng of total RNA or in 1:10,000 dilution of a simple diluted tissue extract, which was ten times more sensitive than a conventional RT-PCR assay. The RT-LAMP assay was highly specific for TCSV, with no cross reaction with the other two orthotospoviruses: GRSV and tomato spotted wilt orthotospovirus (TSWV). These results demonstrate that this simple and sensitive RT-LAMP could be used to achieve species-specific detection for TCSV under field conditions. PMID- 29336958 TI - Prehospital Emergencies in Illegal Gold Mining Sites in French Guiana. AB - INTRODUCTION: Illegal gold mining is flourishing in French Guiana, existing outside the law due to both the high cost of gold mining permits and the challenges of law enforcement within the Amazon forest. We report the characteristics of, and the medical responses to, medical emergencies in illegal gold mining sites. METHODS: We performed a retrospective study of all medical emergencies reported from illegal gold mining sites to the centralized call office of SAMU 973 from 1998 through 2000 and from 2008 through 2010. According to the national health care system, any medical emergency within the territory is handled by the prehospital emergency medical service (SAMU 973), irrespective of the patients' legal status. Data were extracted from the SAMU 973 notebook registry (1998-2000) or the SAMU 973 computerized database (2008-2010) and werre collected using a standardized questionnaire. RESULTS: Of 71,932 calls for medical emergencies in French Guiana during the study periods, 340 (0.5%) originated from illegal gold mining sites. Of these, 196 (58%) led to medical evacuation by helicopter, whereas the overall rate of evacuation by helicopter after placing a call to SAMU 973 was only 4% (3020/71,932; P<0.0001 for comparison with illegal gold mining sites). Medical emergencies were classified as illness (48%, mostly infectious), trauma (44%, mostly weapon wounds), and miscellaneous (8%). CONCLUSIONS: Medical emergencies at illegal gold mining sites in the Amazon forest mostly include infectious diseases, followed by trauma, and often require medical evacuation by helicopter. Our study suggests that implementation of preventive medicine within gold mining sites, irrespective of their legal status, could be cost-effective and reduce morbidity. PMID- 29336959 TI - Psychological Attributes of Ultramarathoners. AB - INTRODUCTION: As the popularity of ultramarathon participation increases, there still exists a lack of understanding of the unique psychological characteristics of ultramarathon runners. The current study sought to investigate some of the psychological and behavioral factors that are involved in ultramarathon running. METHODS: We obtained information from participants of the Bear Chase Trail Race via an online survey. This race is a single-day, multidistance race consisting of a 10 k, half marathon, 50 k, 50 mi, and 100 k run in Lakewood, Colorado, at a base altitude of 1680 m with total altitude in climbs ranging from 663 to 2591 m. We correlated information from the Exercise Addiction Inventory and the Patient Health Questionnaire-2 and demographic information with race finish times. RESULTS: Out of 200 runners who started the race, 98 (48%) completed the survey. Over half of the runners were men (61.2%), and the average age was 39.0 years (SD+/-8.9; range 21-64 years). A number of respondents (20%) screened positive for exercise addiction concerns. Approximately 20% of our sample screened positive for depressive symptoms (Patient Health Questionnaire-2 score >3). The majority of participants reported receiving strong social support from current partners with regard to their ultramarathon running training time and goals. CONCLUSIONS: Although only a screening, the number of positive screens on the Exercise Addiction Inventory suggests use of screening measures with an ultramarathon running population. Athletes with positive screening tests should be fully evaluated for depression and exercise addiction because this would enable appropriate athlete support and treatment referral. PMID- 29336960 TI - PRO: Prothrombin Complex Concentrate Should Be Used in Preference to Fresh Frozen Plasma for Hemostasis in Cardiac Surgical Patients. PMID- 29336961 TI - Chronic Lung Disease and Mortality after Cardiac Surgery: A Prospective Cohort Study. AB - OBJECTIVE: To investigate the 1-year survival in cardiac surgical patients with lung disease, including previously undiagnosed cases. DESIGN: Prospective cohort study. SETTING: Tertiary hospital. PARTICIPANTS: Patients scheduled for elective coronary artery bypass graft (CABG) surgery. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Pulmonary function tests (PFTs) were performed in 454 patients before surgery. Abnormal respiratory patterns were defined as follows: obstructive (forced expiratory volume in 1 second/forced vital capacity <0.70), restrictive (forced expiratory volume in 1 second/forced vital capacity >=0.70 and forced vital capacity <80% of predicted), and mixed. Overall 1-year mortality was 3.3%. Among 31 patients with documented chronic obstructive pulmonary disease (COPD), mortality was 9.6%, hazard ratio (HR) 1.28, 95% confidence interval (CI) 1.02-12.80, p = 0.04. Of 423 patients without history of COPD, 57 obstructive, 46 restrictive, and 4 mixed abnormal patterns were identified. Of a total of 72 with obstructive lung disease confirmed by PFT (ie, 15 of COPD patients and 57 newly identified cases), 6.9% died, HR 2.75, 95% CI 0.98-8.07, p = 0.06. When combined with cases of COPD where a respiratory abnormality was confirmed (26 patients), newly diagnosed obstructive lung disease (57 patients) was significantly associated with 1-year mortality, HR 4.13, 95% CI 1.50-11.42, p = 0.006. The adjustment for EuroSCORE II did not change the results. CONCLUSIONS: Combination of confirmed preexisting lung disease and newly diagnosed cases provides a clear link to mid-term mortality. PMID- 29336962 TI - Preoperative Left Ventricular Diastolic Dysfunction and One-Year Survival in Patients Undergoing Transcatheter Aortic Valve Replacement. PMID- 29336963 TI - Ultrasound Guided Cannulation of the Carotid Artery in Extensive Aortic Dissection Involving the Aortic Arch Branch Vessels. PMID- 29336964 TI - Continuous Erector Spinae Plane (ESP) Block for Postoperative Analgesia after Minimally Invasive Mitral Valve Surgery. PMID- 29336965 TI - Tracheostomy Insertion During Venovenous Extracorporeal Membrane Oxygenation: Do the Benefits Outweigh the Risks? PMID- 29336966 TI - Conversion from Monitored Anesthesia Care to General Anesthesia for Transcatheter Aortic Valve Replacement. PMID- 29336967 TI - Con: Activated Clotting Time Should Not Be Monitored During Heparinization for Vascular Surgery. PMID- 29336968 TI - Reappearance of Motor-Evoked Potentials During the Rewarming Phase After Deep Hypothermic Circulatory Arrest. AB - OBJECTIVE: Although motor-evoked potentials (MEPs) disappear in deep hypothermic circulatory arrest (DHCA), MEPs have been used to confirm whether motor function is intact after DHCA. It is crucial to know the timing, body temperature, and MEP amplitude at MEP reappearance to detect spinal cord ischemia after DHCA. However, data on these parameters are sparse. The authors investigated the characteristics of MEPs at reappearance after DHCA. DESIGN: A retrospective observational study. SETTING: Single national center. PARTICIPANTS: Sixty-one patients who underwent descending aortic replacement and thoracoabdominal aortic replacement with DHCA between January 2013 and December 2015. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: The authors extracted the following data: time to MEP reappearance after the end of lower extremity circulatory arrest, bladder temperature (BT) and nasopharyngeal temperature (NPT) when MEPs recovered, and %amplitude of MEPs relative to control values at MEP reappearance. The median time to MEP reappearance was approximately 70 minutes. BT at MEP reappearance ranged from 34.3 degrees C to 34.6 degrees C and NPT ranged from 36.2 degrees C to 36.4 degrees C. At MEP reappearance, %amplitude less than 50% of the control value was observed in more than 50% of patients. Time to MEP reappearance had a significant positive association with rewarming time (p < 0.01) and BT (p = 0.03). CONCLUSIONS: There was a wide variation in MEP amplitude at reappearance during the rewarming phase. BT was approximately 34 degrees C when MEPs in the leg recovered. The time to MEP reappearance is influenced significantly by rewarming time and BT. PMID- 29336969 TI - Delayed Seroconversion in a Patient With Heparin-Induced Thrombocytopenia. PMID- 29336970 TI - A Nasal Ventilation Mask for a Morbidly Obese Patient with OSA and Atrial Fibrillation undergoing Cardioversion. PMID- 29336971 TI - Inhaled Nitric Oxide (iNO) and Inhaled Epoprostenol (iPGI2) Use in Cardiothoracic Surgical Patients: Is there Sufficient Evidence for Evidence-Based Recommendations? PMID- 29336972 TI - General Anesthesia for Transcatheter Aortic Valve Replacement: Total Intravenous Anesthesia is Associated with Less Delirium as Compared to Volatile Agent Technique. AB - OBJECTIVE: Investigate the effect of volatile anesthesia versus total intravenous anesthesia on the incidence of postoperative delirium and length of stay in patients undergoing transcatheter aortic valve replacement under general anesthesia. DESIGN: Retrospective study. SETTING: Single institution, academic medical center. PARTICIPANTS: Adult patients who underwent transcatheter aortic valve replacement under general anesthesia between November 2014 and February 2017. INTERVENTIONS: This study was not an interventional study. MEASUREMENTS AND MAIN RESULTS: Electronic medical records were reviewed for intraoperative maintenance anesthetic technique, hospital and intensive care unit length of stay, 30-day mortality, and documentation of delirium. Delirium was defined as either 1) positive Confusion Assessment Method for the Intensive Care Unit score or 2) documentation of delirium or confusion by the care team within 2 days of surgery. Overall, 116 patients were included and 84 (72%) received a total intravenous anesthesia technique. Twenty-three patients (20%) had postoperative delirium. The odds of delirium were lower in patients undergoing transcatheter aortic valve replacement with total intravenous anesthesia, compared with volatile anesthesia, even after adjusting for procedure approach (odds ratio 0.22, 95% confidence interval 0.06, 0.79, p = 0.02). No significant difference in hospital or intensive care unit length of stay was seen after adjusting for procedural characteristics. CONCLUSIONS: While postoperative delirium is a complex and multifactorial problem, the type of general anesthetic maintenance may contribute to the incidence of postoperative delirium in patients undergoing transcatheter aortic valve replacement, and total intravenous anesthesia may be an attractive alternative to volatile-based general anesthesia maintenance. PMID- 29336973 TI - Redo Mitral Surgery: Risk, Outcomes, and the Scope of Transcatheter Interventions. PMID- 29336974 TI - Commentary on "Superior Reproducibility of the Leading to Leading Edge and Inner to Inner Edge Methods in the Ultrasound Assessment of Maximum Abdominal Aortic Diameter". PMID- 29336975 TI - Mechanical and Biochemical Role of Fibrin Within a Venous Thrombus. AB - BACKGROUND: The physical properties of a venous thrombus are derived from molecular characteristics, including fibrin polymer diameter, density, branching, and cross-linking. Dense thrombi with thin, highly branched fibrin fibres and small pores in the meshwork have been observed to be more rigid, less permeable, and more resistant to lysis. The three dimensional fibrin meshwork acts as the main structure to entrap and capture erythrocytes, platelets and plasma components. Attached factors become integrated into the developing thrombus, co localise with fibrin deposition and act in either a pro- or anticoagulant capacity. Similarly, factors including blood flow, osmolarity and pH, oxidative stress, platelet and leukocyte recruitment, and thrombin concentration alter thrombus composition, architecture, and its mechanical properties. CONCLUSIONS: Over time, an increase in thrombus cellular composition and a linear decrease in fibrin content as a function of thrombus age is observed. However, little else is known regarding the evolution of fibrin based clots. The role of fibrin in mediating cellular coordination, thrombus maturation, and changes of the venous wall also requires further research. This review discusses the current impact of fibrin on thrombus remodeling and addresses the limitations of the work done in this area. PMID- 29336976 TI - Venus Flytrap: How an Excitable, Carnivorous Plant Works. AB - The carnivorous plant Dionaea possesses very sensitive mechanoreceptors. Upon contact with prey an action potential is triggered which, via an electrical network - comparable to the nervous system of vertebrates - rapidly closes its bivalved trap. The 'hunting cycle' comprises a constitutively activated mechanism for the rapid capture of prey, followed by a well-orchestrated sequence of activation of genes responsible for tight trap closure, digestion of the prey, and uptake of nutrients. Decisions on the step-by-step activation are based on 'counting' the number of stimulations of sensory organs. These remarkable animal like skills in the carnivore are achieved not by taking over genes from its prey but by modifying and rearranging the functions of genes that are ubiquitous in plants. PMID- 29336977 TI - The role of extended venous thromboembolism prophylaxis following urologic pelvic surgery. AB - With the emergence of evidence that venous thromboembolisms (VTE) typically occurs following discharge after urologic pelvic surgery, the focus on extended VTE prophylaxis has intensified. Urologists should have a comprehensive understanding of various VTE risk factors in order to weigh the risk of postoperative hemorrhage with the possibility of fatal pulmonary embolus. Risk factors such as advanced age, obesity, and active malignancy are especially common in patient's undergoing urologic pelvic surgery, and thus this issue becomes particularly relevant to the practicing urologist. In previous years, guidelines on extended VTE prophylaxis have either been vague or not urology specific; however, the European Association of Urology has recently issued recommendations on VTE prophylaxis stratified by VTE risk and surgery type. Although these guidelines are a major advance, definitive answers on this question may prove elusive in the form of prospective randomized data given the low incidence of clinically significant postoperative VTE. PMID- 29336978 TI - Metastatic burden in newly diagnosed hormone-naive metastatic prostate cancer: Comparing definitions of CHAARTED and LATITUDE trial. AB - OBJECTIVES: No uniformity exists in the definition of metastatic burden in metastatic hormone-naive prostate cancer (mHNPC) across clinical trials making their comparison challenging. We explored definition agreement and prognostic significance of bulky mHNPC according to the CHAARTED and LATITUDE trial. MATERIALS AND METHODS: Since 2014, 95 patients with newly diagnosed mHNPC were prospectively registered. For this study, they were categorized as having high volume (HVD) vs. low-volume (LVD) and high-risk (HRD) vs. low-risk disease (LRD) according to the definition of CHAARTED and LATITUDE, respectively. Agreement was tested using Cohen's kappa coefficient. The Kaplan-Meier method was used to compare castration-resistant prostate cancer-free survival (CRPC-FS) and overall survival (OS). Prognostic significance was analyzed using Cox regression models. RESULTS: In total, 44 (46%) and 46 (48%) patients showed HVD and HRD, respectively. Cohen's kappa coefficient was 0.83 indicating "almost perfect" agreement (P<0.001). Median CRPC-FS was 40 (95% CI: 25-55) vs. 11 months (95% CI: 8-14) for LVD and HVD (P = 0.001); 40 (95% CI: 27-53) vs. 11 months (95% CI: 8 14) for LRD and HRD (P<0.001), respectively. Median OS was not reached vs. 51 months (95% CI: 0-102) for LVD and HVD (P = 0.001); not reached vs. 51 months (95% CI: 2-100) for LRD and HRD (P = 0.003), respectively. The prognostic significance of both definitions remained significant in the multivariate model for CRPC-FS (P = 0.012 and P = 0.003). CONCLUSIONS: There is an excellent agreement between the definitions of bulky mHNPC in the CHAARTED and LATITUDE trial. Both definitions have significant prognostic value for predicting worse CRPC-FS and OS. PMID- 29336979 TI - Prostate magnetic resonance imaging: The truth lies in the eye of the beholder. AB - PURPOSE: To determine the diagnostic accuracy and interobserver variability of radiologic interpretation of magnetic resonance imaging (MRI) performed for surgical planning before prostatectomy. PATIENTS AND METHODS: The records of 233 men undergoing prostatectomy with presurgical multiparametric 3T surface body coil MRI were reviewed. All initial films were read by a fellowship-trained body radiologist provided with relevant clinical information. A senior radiologist then reread all pelvic MRIs blinded to the initial interpretation with findings from both readings compared to final pathology. Kappa (kappa) scores as well as sensitivity, specificity, positive predictive values (PPV), negative predictive value (NPV), and accuracy were determined. RESULTS: When considering extraprostatic extension (EPE), there was low concordance comparing the initial vs. repeat MRI interpretation (kappa = 0.22). Additionally, when the senior radiologist reread his own initial interpretation (n = 93, blinded to initial result), concordance for EPE was greater (kappa = 0.36) albeit similarly low. With regard to EPE, a comparison of initial MRI interpretation vs. reread by senior radiologist noted universal improvements in diagnostic characteristics including sensitivity (30.3% vs. 56.1%), specificity (80.2% vs. 88.6%), PPV (37.7% vs. 66.1%), NPV (74.4% vs. 83.6%), and accuracy (66.1% vs. 79.4%). In contrast, seminal vesicle invasion interpretation was more uniform whereby initial MRI interpretation vs. reread yielded similar sensitivity (18.2% vs. 27.3%), specificity (97.2% vs. 93.8%), PPV (40.0% vs. 31.6%), NPV (91.9% vs. 92.5%), and accuracy (89.7% vs. 87.6%). CONCLUSIONS: Even at a tertiary referral center, interobserver variability among radiologists regarding local extent of disease on prostate MRI is high. These observations underscore the importance of uniformity when defining criteria for EPE and seminal vesicle invasion to allow for optimal presurgical planning. PMID- 29336980 TI - Surfactant Effects on Lipid-Based Vesicles Properties. AB - Understanding the effect of surfactant properties is critical when designing vesicular delivery systems. This review evaluates previous studies to explain the influence of surfactant properties on the behavior of lipid vesicular systems, specifically their size, charge, stability, entrapment efficiency, pharmacokinetics, and pharmacodynamics. Generally, the size of vesicles decreases by increasing the surfactant concentration, carbon chain length, the hydrophilicity of the surfactant head group, and the hydrophilic-lipophilic balance. Increasing surfactant concentration can also lead to an increase in charge, which in turn reduces vesicle aggregation and enhances the stability of the system. The vesicles' entrapment efficiency not only depends on the surfactant properties but also on the encapsulated drug. For example, the encapsulation of a lipophilic drug could be enhanced by using a surfactant with a low hydrophilic-lipophilic balance value. Moreover, the membrane permeability of vesicles depends on the surfactant's carbon chain length and transition temperature. In addition, surfactants have a clear influence on pharmacokinetics and pharmacodynamics such as sustaining drug release, enhancing the circulation time of vesicles, improving targeting and cellular uptake. PMID- 29336982 TI - IL-6 receptor blockade ameliorates diabetic nephropathy via inhibiting inflammasome in mice. AB - BACKGROUND AND OBJECTIVE: Interleukin 6 (IL-6) has been identified as a key mediator in inflammation, immune responses and glucose metabolism. In this study, we assessed the effects of an IL-6 receptor antibody on diabetic nephropathy in a mouse model of type 2 diabetes mellitus. METHODS: Twelve week old male db/db mice were treated with Tocilizumab (an IL-6 receptor antibody), normal IgG1 control antibody, insulin or normal saline for 12 weeks. Renal injury, inflammation and insulin resistance were assessed. RESULTS: Db/db mice treated with Tocilizumab exhibited reduced proteinuria and glomerular mesangial matrix accumulation compared to db/db + IgG controls. Additionally, Tocilizumab suppressed inflammatory response, oxidative stress and the IL-6 signaling pathway in the diabetic kidneys. It is noteworthy that blockade of IL-6 receptor blunted the activation of NLRP3 inflammasome partly through inhibition of IL-17A. Furthermore, insulin resistance assessed by glucose tolerance test, was ameliorated by Tocilizumab treatment. CONCLUSIONS: The protective effects of an IL-6 receptor blockade against diabetic renal injury may be due to decreased insulin resistance and inhibition of the inflammasome. PMID- 29336981 TI - Challenges and Opportunities for the Subcutaneous Delivery of Therapeutic Proteins. AB - Biotherapeutics is a rapidly growing drug class, and over 200 biotherapeutics have already obtained approval, with about 50 of these being approved in 2015 and 2016 alone. Several hundred protein therapeutic products are still in the pipeline, including interesting new approaches to treatment. Owing to patients' convenience of at home administration and reduced number of hospital visits as well as the reduction in treatment costs, subcutaneous (SC) administration of biologics is of increasing interest. Although several avenues for treatment using biotherapeutics are being explored, there is still a sufficient gap in knowledge regarding the interplay of formulation conditions, immunogenicity, and pharmacokinetics (PK) of the absorption of these compounds when they are given SC. This review seeks to highlight the major concerns and important factors governing this route of administration and suggest a holistic approach for effective SC delivery. PMID- 29336983 TI - A response to S. Basu (2017). PMID- 29336984 TI - Can the problem of the observability of other minds be solved in the lab?: Comment on "Seeing mental states: An experimental strategy for measuring the observability of other minds" by Cristina Becchio et al. PMID- 29336986 TI - A systematic literature review of observational studies of the bidirectional association between metabolic syndrome and migraine. AB - AIMS: To evaluate all epidemiological evidence in the literature linking the metabolic syndrome (MetS) and migraine in adults. METHODS: Database (Medline, Embase; published reports up to November 2017) and manual searches were performed. Information on data collection, sample characteristics, study design, MetS and migraine assessment, and results was extracted from each relevant publication. The methodological quality of each study was also assessed. RESULTS: A total of 15 observational epidemiological studies in adults, published between 2009 and 2017, were retrieved. Of these, one employed a prospective design, while the rest had a cross-sectional (13 studies) or case-control (one study) design. Five studies assessed the presence of migraine in individuals with MetS, whereas 10 studies assessed the presence or risk of MetS in migraineurs. Most participants were female hospital outpatients. The sole prospective cohort study reported 11-year MetS incidence of 21.8% in migraineurs with aura, 16.8% in migraineurs without aura and 14.5% in subjects without headaches. Most studies (60%) provided no statistical estimates of association. Methodological flaws included selection biases, lack of power analysis, unsuitable research plans and no multivariable analyses. Meta-analysis was not feasible with the available data. CONCLUSION: Our systematic review has identified major gaps in knowledge and weaknesses in research that should provide an impetus for future epidemiological investigations using more rigorous methodology, large general population prospective cohorts, and substantial data on dietary behaviours and lifestyle. PMID- 29336985 TI - The Blacklegged Tick, Ixodes scapularis: An Increasing Public Health Concern. AB - In the United States, the blacklegged tick, Ixodes scapularis, is a vector of seven human pathogens, including those causing Lyme disease, anaplasmosis, babesiosis, Borrelia miyamotoi disease, Powassan virus disease, and ehrlichiosis associated with Ehrlichia muris eauclarensis. In addition to an accelerated rate of discovery of I. scapularis-borne pathogens over the past two decades, the geographic range of the tick, and incidence and range of I. scapularis-borne disease cases, have increased. Despite knowledge of when and where humans are most at risk of exposure to infected ticks, control of I. scapularis-borne diseases remains a challenge. Human vaccines are not available, and we lack solid evidence for other prevention and control methods to reduce human disease. The way forward is discussed. PMID- 29336988 TI - Superior Mesenteric Artery Syndrome: An Uncommon Cause of Abdominal Pain. PMID- 29336987 TI - The in vitro radiosensitizer potential of resveratrol on MCF-7 breast cancer cells. AB - Radiation therapy is commonly applied in breast cancer (BC) patients. However, radioresistance and side effects are limiting factors of this practice. Therefore, studying substances that can enhance the radiation effect and, at the same time, protect normal cells is very relevant. Thus, the aim of this work was to assess the radiosensitizer effect of resveratrol (RV) on BC cells (MCF-7). A high cytotoxic and antiproliferative effect was observed in the treatment with 10 MUM of RV + 3 Gy ionizing radiation (IR). Our results indicate that, 24 h after the exposition of cell cultures to RV + IR, an induction of necrosis/senescence has occurred. Furthermore, was observed the activation of extrinsic apoptosis pathway through a decrease of the Bax/Bcl-2 ratio and a high activity of caspase 8. Moreover, our data show that this treatment affected the oxidative cell metabolism, increasing oxidative protein, lipid and membrane damage and also acted to decrease the antioxidant enzymes activity. The antiproliferative effect on 72 h cultures may be associated with a high expression of p53 and an interruption of cell cycle in the S phase. Therefore, our results suggest that RV is a potential radiosensitizer of MCF-7 BC cells. PMID- 29336989 TI - Are Geriatric Patients Placed in an Emergency Department Observation Unit on a Chest Pain Pathway More Likely Than Non-Geriatric Patients to Re-Present to the Hospital within 30 Days? AB - BACKGROUND: Emergency department observation units (EDOUs) are used frequently for low-risk chest pain evaluations. OBJECTIVE: The purpose of this study was to determine whether geriatric compared to non-geriatric patients evaluated in an EDOU for chest pain have differences in unscheduled 30-day re-presentation, length of stay (LOS), and use of stress testing. METHODS: We conducted an exploratory, retrospective, cohort study at a single academic, urban ED of all adult patients placed in an EDOU chest pain protocol from June 1, 2014 to May 31, 2015. Our primary outcome was any unscheduled return visits within 30 days of discharge from the EDOU. Secondary outcomes included EDOU LOS and stress testing. We used Wilcoxon non-parametric and chi2 tests to compare geriatric to non geriatric patients. RESULTS: There were 959 unique EDOU placements of geriatric (n = 219) and non-geriatric (n = 740) patients. Geriatric compared to non geriatric patients had: no significant difference in unscheduled 30-day return visits after discharge from the EDOU (15.5% vs. 18.5%; p = 0.31); significantly longer median EDOU LOS (22.1 vs. 20.6 h; p < 0.01) with a greater percentage staying longer than 24 h (42% vs. 29.1%; p < 0.01). Geriatric patients had significantly fewer stress tests (39.7% vs. 51.4%; p < 0.01), more of which were nuclear stress tests (78.2% vs. 39.5%; p < 0.01). CONCLUSIONS: In this exploratory retrospective study, geriatric EDOU chest pain patients did not have an increased rate of re-presentation to the hospital within 30 days compared to non-geriatric patients. Geriatric patients had a longer EDOU LOS than non geriatric patients. Geriatric patients in the EDOU had fewer stress tests, but more of those were nuclear stress tests. PMID- 29336990 TI - Failure of Intracardiac Pacing After Fatal Propafenone Overdose: A Case Report. AB - BACKGROUND: Propafenone is a sodium-channel blocker, class IC antiarrhythmic drug, frequently used to manage supraventricular dysrhythmias, especially atrial fibrillation. We report a self mono-intoxication with propafenone. CASE REPORT: A 68-year-old woman presented with a decreased level of consciousness, hypotension, and electrocardiogram showing QRS widening with atrial asystole and extreme bradycardia < 20 beats/min. After initial stabilization with transcutaneous pacing, laboratory findings detected normal electrolyte ranges and metabolic acidosis, and her medical history revealed availability of propafenone due to paroxysmal atrial fibrillation and depressive syndrome, which led to the suspicion of intoxication. Despite intravenous sodium bicarbonate, calcium, norepinephrine, and aggressive fluid replacement (10% glucose with insulin), hemodynamic stability was not achieved. Temporary intracardiac pacing was implanted. However, even with multiple electrode positions, effective capture could not be achieved. At that time, transcutaneous pacing was also ineffective. Consequently, the patient died in refractory asystole due to complete myocardial nonexcitability. The concentration of 5270 ng/mL of propafenone was found in the blood at autopsy, using gas spectrometry-mass chromatography. It is the third highest reported propafenone lethal concentration and the first case in which the myocardial nonexcitability refractory to intracardiac pacing was seen despite normal electrode position in the right ventricle, with failure to achieve the patient's hemodynamic stability. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Emergency physicians should be aware of possible propafenone ingestion causing toxicity, which is probably more frequent than previously described, especially because propafenone is widely available due to its use in managing atrial fibrillation, the most common arrhythmia nowadays. PMID- 29336991 TI - SIRPalpha-CD47 Immune Checkpoint Blockade in Anticancer Therapy. AB - Inhibitory immune checkpoint blockade has been one of the most significant advances in anticancer therapy of the past decade. Research so far has largely focused on improving adaptive immune functions, but recent studies have indicated that the signal-regulatory protein (SIRP)alpha-CD47 pathway, a phagocytosis checkpoint in macrophages and other innate immune cells, may be an interesting therapeutic target. Here, we summarize current knowledge about SIRPalpha-CD47 blockade, and highlight key issues for future investigations. These include the targeting of prophagocytic receptors (Fc receptors or otherwise) to complement SIRPalpha-CD47 blockade, the understanding of constraints on phagocytosis other than the SIRPalpha-CD47 checkpoint and the contribution of immune cells other than macrophages. A better understanding of how SIRPalpha-CD47 blockade works may aid in identifying patients suitable for this therapy, avoiding potential toxicities and designing optimal combination therapies. PMID- 29336992 TI - Schwann cell lamellipodia regulate cell-cell interactions and phagocytosis. AB - Lamellipodia in Schwann cells (SCs) are crucial for myelination, but their other biological functions remain largely uncharacterised. Two types of lamellipodia exist in SCs: axial lamellipodia at the outermost edge of the cell processes, and radial lamellipodia appearing peripherally along the entire cell. We have previously shown that radial lamellipodia on olfactory glia (olfactory ensheathing cells; OECs) promote cell-cell adhesion, contact-mediated migration and phagocytosis. Here we have investigated whether lamellipodia in SCs have similar roles. Using live-cell imaging, we show that the radial lamellipodia in SCs are highly motile, appear at multiple cellular sites and rapidly move in a wave-like manner. We found that axial and radial lamellipodia had strikingly different roles and are regulated by different intracellular pathways. Axial lamellipodia initiated interactions with other SCs and with neurons by contacting radial lamellipodia on SCs, and budding neurites/axons. Most SC-SC interactions resulted in repulsion, and, lamellipodial activity (unlike in OECs) did not promote contact-mediated migration. We show that lamellipodia are crucial for SC mediated phagocytosis of both axonal debris and bacteria, and demonstrated that inhibition of lamellipodial activity by blocking the Rho/Rac pathways also inhibits phagocytosis. We also show that heregulin, which induces SC differentiation and maturation, alters lamellipodial behaviour but does not affect phagocytic activity. Overall, the results show that SC lamellipodia are important for cell interactions and phagocytosis. PMID- 29336993 TI - WORLDSymposiumTM 2018 Introduction. PMID- 29336994 TI - Agreement between the results of meta-analyses from case reports and from clinical studies regarding the efficacy of laronidase therapy in patients with mucopolysaccharidosis type I who initiated enzyme replacement therapy in adult age: An example of case reports meta-analyses as an useful tool for evidence based medicine in rare diseases. AB - BACKGROUND: Case reports might have a prominent role in the rare diseases field, due to the small number of patients affected by one such disease. A previous systematic review regarding the efficacy of laronidase therapy in patients with mucopolysaccharidosis type I (MPS-I) who initiated enzyme replacement therapy (ERT) in adult age has been published. The review included a meta-analysis of 19 clinical studies and the description of eleven case reports. It was of interest to perform a meta-analysis of those case reports to explore the role of such meta analyses as a tool for evidence-based medicine in rare diseases. METHODS: The study included all case reports with standard treatment regimen. Primary analysis was the percentage of case reports showing an improvement in a specific outcome. Only when that percentage was statistically higher than 5%, the improvement was confirmed as such. The outcomes that accomplished this criterion were ranked and compared to the GRADE criteria obtained by those same outcomes in the previous meta-analysis of clinical studies. RESULTS: There were three outcomes that had a significant improvement: Urine glycosaminoglycans, liver volume and 6-minute walking test. Positive and negative predictive values, sensitivity and specificity for the results of the meta-analysis of case reports as compared to that of clinical studies were 100%, 88.9%, 75% and 100%, respectively. Accordingly, absolute (Rho=0.82, 95%CI: 0.47 to 0.95) and relative agreement (Kappa=0.79, 95%CI: 0.593 to 0.99) between the number of case reports with improvement in a specific outcome and the GRADE evidence score for that outcome were good. Sensitivity analysis showed that agreement between the meta-analysis of case reports and that of the clinical studies were good only when using a strong confirmatory strategy for outcome improvement in case reports. CONCLUSIONS: We found an agreement between the results of meta-analyses from case reports and from clinical studies in the efficacy of laronidase therapy in patients with MPS-I who initiated ERT in adult age. This agreement suggests that combining case reports quantitatively, rather than analyzing them separately or qualitatively, may improve conclusions in the field of rare diseases. PMID- 29336995 TI - A search for molecular mechanisms underlying male idiopathic infertility. AB - Infertility affects approximately 15% of the couples wanting to conceive. In 30 - 40% of the cases the aetiology of male infertility remains unknown and is called idiopathic male infertility. When assisted reproductive technologies are used to obtain pregnancy, an adequate (epi)genetic diagnosis of male infertility is of major importance to evaluate if a genetic abnormality will be transmitted to the offspring. In addition, there is need for better diagnostic seminal biomarkers to assess the success rates of these assisted reproductive technologies. This review investigated the possible causes and molecular mechanisms underlying male idiopathic infertility by extensive literature searches of: (i) causal gene mutations; (ii) proteome studies of spermatozoa from idiopathic infertile men;(iii) the role of epigenetics; (iv) post-translational modifications; and (v) sperm DNA fragmentation in infertile men. In conclusion, male infertility is a complex, multi-factorial disorder and the underlying causes often remain unknown. Further research on the (epi)genetic and molecular defects in spermatogenesis and sperm function is necessary to improve the diagnosis and to develop more personalized treatments of men with idiopathic infertility. PMID- 29336996 TI - Follicular flushing in patients with poor ovarian response: a systematic review and meta-analysis. AB - A systematic literature review and meta-analysis was conducted to evaluate the effect of follicular flushing on clinical outcomes (primary outcome: mean number of cumulus-oocyte-complexes [COC]) in poor-response IVF patients). The bibliographic databases OvidMedline (includes Pubmed), Cochrane Library and Web of Science were searched electronically for randomized controlled trials (RCT) comparing follicular flushing with no flushing. Three RCT with a total of 210 patients could be included. The mean number of COC did not increase with flushing (weighted mean difference: -0.45 COC, 95% CI -1.14 to 0.25, I2 = 70%; P = 0.21; three RCT, n = 210). Mean number of metaphase II oocytes and the proportion of randomized patients having at least one COC retrieved were no different between groups. No difference was observed between groups for mean number of embryos, the proportion of randomized patients achieving embryo transfer, clinical pregnancy and live birth rates. Procedure duration was significantly increased with flushing (P = 0.0006). A positive effect of flushing on any of the investigated outcomes could not be observed in the existing literature in patients with poor ovarian response. Flushing is unlikely to significantly increase the number of oocytes, and the routine use of follicular flushing should, therefore, be scrutinized. PMID- 29336997 TI - Modulation of nonessential amino acid biosynthetic pathways in virulent Hessian fly larvae (Mayetiola destructor), feeding on susceptible host wheat (Triticum aestivum). AB - Compatible interactions between wheat (Triticum aestivum), and its dipteran pest Hessian fly (Hf, Mayetiola destructor) result in successful establishment of larval feeding sites rendering the host plant susceptible. Virulent larvae employ an effector-based feeding strategy to reprogram the host physiology resulting in formation of a protein- and sugar-rich nutritive tissue beneficial to developing larvae. Previous studies documented increased levels of nonessential amino acids (NAA; that need not be received through insect diet) in the susceptible wheat in response to larval feeding, suggesting importance of plant-derived NAA in larval nutrition. Here, we investigated the modulation of genes from NAA biosynthetic pathways (NAABP) in virulent Hf larvae. Transcript profiling for 16 NAABP genes, annotated from the recently assembled Hf genome, was carried out in the feeding first-, and second-instars and compared with that of the first-instar neonate (newly hatched, migrating, assumed to be non-feeding) larvae. While Tyr, Gln, Glu, and Pro NAABP genes transcript abundance declined in the feeding instars as compared to the neonates, those for Ala, and Ser increased in the feeding larval instars, despite higher levels of these NAA in the susceptible host plant. Asp, Asn, Gly and Cys NAABP genes exhibited variable expression profiles in the feeding first- and second-instars. Our results indicate that while Hf larvae utilize the plant-derived NAA, de novo synthesis of several NAA may be necessary to: (i) provide larvae with the requisite amount for sustaining growth before nutritive tissue formation and, (ii) overcome any inadequate amounts in the host plant, post-nutritive tissue formation. PMID- 29336998 TI - Developing a Predictive Model for Clinical Outcomes of Advanced Non-Small Cell Lung Cancer Patients Treated With Nivolumab. AB - INTRODUCTION: Despite significant improvement of clinical outcomes of advanced non-small-cell lung cancer (NSCLC) patients treated with immunotherapy, our knowledge of optimal biomarkers is still limited. PATIENTS AND METHODS: We retrospectively evaluated 159 advanced NSCLC patients in our institution treated with nivolumab after disease progression during platinum-based chemotherapy. We correlated several variables with progression-free survival (PFS) to develop the immunotherapy, Sex, Eastern Cooperative Oncology Group performance status, Neutrophil-to-lymphocyte ratio (NLR), and Delta NLR (iSEND) model. We categorized patients into iSEND good, intermediate, and poor risk groups and evaluated their clinical outcomes. Performance of iSEND at 3, 6, 9, and 12 months was evaluated according to receiver operating characteristic (ROC) curves and internally validated using bootstrapping. The association of iSEND risk groups with clinical benefit was evaluated using logistic regression. RESULTS: Median follow-up was 11.5 months (95% confidence interval [CI], 9.4-13.1). There were 50 deaths and 43 with disease progression without death. PFS rates at 3, 6, 9, and 12 months were 78.4%, 63.7%, 55.3%, and 52.2% in iSEND good; 79.4%, 44.3%, 25.9%, and 19.2% in iSEND intermediate; and 65%, 25.9%, 22.8%, and 17.8% in iSEND poor. Time dependent area under ROC curves of iSEND for PFS at 3, 6, 9, and 12 months were 0.718, 0.74, 0.746, and 0.774. The iSEND poor group was significantly associated with progressive disease at 12 +/- 2 weeks (odds ratio, 9.59; 95% CI, 3.8-26.9; P < .0001). CONCLUSION: The iSEND model is an algorithmic model that can characterize clinical outcomes of advanced NSCLC patients receiving nivolumab into good, intermediate, or poor risk groups and might be useful as a predictive model if validated independently. PMID- 29336999 TI - Faculty Relative Value Unit Incentives and Resident Education. PMID- 29337000 TI - Mechanical Forces Program the Orientation of Cell Division during Airway Tube Morphogenesis. AB - Oriented cell division plays a key role in controlling organogenesis. The mechanisms for regulating division orientation at the whole-organ level are only starting to become understood. By combining 3D time-lapse imaging, mouse genetics, and mathematical modeling, we find that global orientation of cell division is the result of a combination of two types of spindles with distinct spindle dynamic behaviors in the developing airway epithelium. Fixed spindles follow the classic long-axis rule and establish their division orientation before metaphase. In contrast, rotating spindles do not strictly follow the long-axis rule and determine their division orientation during metaphase. By using both a cell-based mechanical model and stretching-lung-explant experiments, we showed that mechanical force can function as a regulatory signal in maintaining the stable ratio between fixed spindles and rotating spindles. Our findings demonstrate that mechanical forces, cell geometry, and oriented cell division function together in a highly coordinated manner to ensure normal airway tube morphogenesis. PMID- 29337001 TI - Antidepressant Treatment Duration in Pediatric Depressive and Anxiety Disorders: How Long is Long Enough? AB - Anxiety and depressive disorders are common in the pediatric primary care setting, and respond to both psychotherapeutic and psychopharmacologic treatment. However, there are limited data regarding the optimal treatment duration. This article systematically reviews guidelines and clinical trial data related to antidepressant treatment duration in pediatric patients with depressive and anxiety disorders. The extant literature suggests 9-12 months of antidepressant treatment for youth with major depressive disorder. For generalized, separation and social anxiety disorders, 6-9 months of antidepressant treatment may be sufficient, though many clinicians extend treatment to 12 months based on extrapolation of data from adults with anxiety disorders. Such extended treatment periods may decrease the risk of long-term morbidity and recurrence; however, the goal of treatment is ultimately remission, rather than duration of antidepressant pharmacotherapy. Moreover, while evidence-based guidelines represent a starting point, appropriate treatment duration varies and patient-specific response, psychological factors, and timing of discontinuation must be considered for individual pediatric patients. PMID- 29337002 TI - Hypothalamic inflammation and malfunctioning glia in the pathophysiology of obesity and diabetes: Translational significance. AB - Preclinical studies have suggested that chronic inflammation in the brain might be associated with multiple metabolic disorders, including obesity and diabetes. In particular, hypothalamic inflammation interferes with the endocrine system and modulates nutritional homeostasis, leading to metabolic alterations and consequent pathologies. With regard to the mechanisms underlying molecular and cellular pathogenesis, neurons, non-neuronal cells, and the crosstalk between them have gained particular attention. Specifically, malfunctioning glia have recently been implicated as an important component of pathological hypothalamic inflammation. Hypothalamic inflammation modulates food intake, energy expenditure, insulin secretion, hepatic glucose production, and glucose and fatty acid metabolism. Moreover, growing evidence suggests that hypothalamic inflammation is intrinsically associated with the pathogenesis of obesity, diabetes, and their dysfunctional consequences. However, the translational significance of hypothalamic inflammation has not yet been fully explored. In this review, we cover recent advances suggesting that hypothalamic inflammation and glia play a central role in the ontology of obesity, diabetes, and their complications. Finally, we explore the possibilities and challenges of targeting hypothalamic inflammation as a potential therapeutic strategy. PMID- 29337003 TI - Mouse lung fibroblasts are highly susceptible to necroptosis in a reactive oxygen species-dependent manner. AB - Mouse embryonic fibroblasts (MEFs) have extensively been used to study necroptosis, a recently identified form of programmed cell death. However, very little is yet known about the role of necroptosis and its regulation by reactive oxygen species (ROS) in cell types naturally exposed to high oxygen levels such as mouse lung fibroblasts (MLFs). Here, we discover that MLFs are highly susceptible to undergo necroptosis in a ROS-dependent manner upon exposure to a prototypic death receptor-mediated necroptotic stimulus, i.e. cotreatment with tumor necrosis factor (TNF)alpha, Smac mimetic and the caspase inhibitor zVAD.fmk (TSZ). Kinetic analysis revealed that TSZ rapidly induces cell death in MLFs. Pharmacological inhibition of receptor-interacting protein kinase (RIPK)1 by necrostatin-1 (Nec-1) or RIPK3 by GSK'872 significantly rescues TSZ-stimulated cell death. Also, genetic silencing of RIPK3 or mixed lineage kinase domain-like pseudokinase (MLKL) significantly protects MLFs from TSZ-mediated cell death. Prior to cell death, TSZ significantly increases production of ROS. Importantly, addition of radical scavengers such as butylated hydroxyanisole (BHA) or alpha Tocopherol (alpha-Toc) significantly suppresses TSZ-induced cell death in parallel with a significant reduction of ROS generation. Consistently, BHA prevented TSZ-triggered phosphorylation of MLKL similar to the addition of GSK'872. Thus, our study demonstrates for the first time that MLFs are prone to undergo necroptosis in response to a prototypic necroptotic stimulus and identifies ROS as important mediators of TSZ-triggered necroptosis. PMID- 29337004 TI - Quantitative sensory testing profiles in children, adolescents and young adults (6-20 years) with cerebral palsy: Hints for a neuropathic genesis of pain syndromes. AB - INTRODUCTION: Many patients with cerebral palsy (CP) suffer chronic pain as one of the most limiting factors in their quality of life. In CP patients, pain mechanisms are not well understood, and pain therapy remains a challenge. Quantitative sensory testing (QST) might provide unique information about the functional status of the somatosensory system and therefore better guide pain treatment. OBJECTIVES: To understand better the underlying pain mechanisms in pediatric CP patients, we aimed to assess clinical and pain parameters, as well as QST profiles, which were matched to the patients' cerebral imaging pathology. PATIENTS AND METHODS: Thirty CP patients aged 6-20 years old (mean age 12 years) without intellectual impairment underwent standardized assessments of QST. Cerebral imaging was reassessed. QST results were compared to age- and sex matched controls (multiple linear regression; Fisher's exact test; linear correlation analysis). RESULTS: CP patients were less sensitive to all mechanical and thermal stimuli than healthy controls but more sensitive to all mechanical pain stimuli (each p < 0.001). Fifty percent of CP patients showed a combination of mechanical hypoesthesia, thermal hypoesthesia and mechanical hyperalgesia; 67% of CP patients had periventricular leukomalacia (PVL), which was correlated with mechanic (r = 0.661; p < 0.001) and thermal (r = 0.624; p = 0.001) hypoesthesia. CONCLUSION: The combination of mechanical hypoesthesia, thermal hypoesthesia and mechanical hyperalgesia in our CP patients implicates lemniscal and extralemniscal neuron dysfunction in the thalamus region, likely due to PVL. We suspect that extralemniscal tracts are involved in the original of pain in our CP patients, as in adults. PMID- 29337005 TI - Walker-Warburg syndrome and tectocerebellar dysraphia: A novel association caused by a homozygous DAG1 mutation. AB - OBJECTIVES: To elaborate the imaging phenotype associated with a homozygous c.743C > del frameshift mutation in DAG1 leading to complete absence of both alpha- and beta-dystroglycan previously reported in a consanguineous Israeli-Arab family. METHODS: We analyzed prenatal and postnatal imaging data of patients from a consanguineous Israeli-Arab kindred harboring the DAG1 mutation. RESULTS: The imaging studies (fetal ultrasound, CT scan and postnatal MRI) demonstrated: flat cortex (abnormally thick with irregular pebbled cortical-white matter border on MRI), hydrocephalus, scattered small periventricular heterotopia and subependymal hemorrhages and calcifications, z-shaped brainstem, and in addition an occipital encephalocele, vermian agenesis, and an elongated and thick tectum (tectocerebellar dysraphia). CONCLUSIONS: The novel association of cobblestone malformation with tectocerebellar dysraphia as part of WWS is characteristic of the homozygous c.743C > del frameshift mutation in the DAG1 gene. PMID- 29337007 TI - Postnatal post-traumatic stress: An integrative review. AB - PROBLEM: Post-traumatic stress disorder and post-traumatic stress symptoms following birth occur amongst a small proportion of women but can lead to poor maternal mental health, impairment in mother-infant bonding and relationship stress. This integrative review aims to examine the associated risk factors and women's own experiences of postnatal post-traumatic stress in order to better understand this phenomenon. METHOD: Fifty three articles were included and critically reviewed using the relevant Critical Appraisal Skills Program checklists or Strengthening the Reporting of Observational studies in Epidemiology assessment tool. FINDINGS: Risk factors for postnatal post-traumatic stress symptoms and disorder include factors arising before pregnancy, during the antenatal period, in labour and birth and in the postnatal period. Potential protective factors against postnatal post-traumatic stress have been identified in a few studies. The development of postnatal post-traumatic stress can lead to negative outcomes for women, infants and families. DISCUSSION: Risk factors for post-traumatic stress symptoms and disorder are potentially identifiable pre pregnancy and during the antenatal, intrapartum and postnatal periods. Potential protective factors have been identified however they are presently under researched. Predictive models for postnatal post-traumatic stress disorder development have been proposed, however further investigation is required to test such models in a variety of settings. CONCLUSIONS: Postnatal post-traumatic stress symptoms and disorder have been shown to negatively impact the lives of childbearing women. Further investigation into methods and models for identifying women at risk of developing postnatal post-traumatic stress following childbirth is required in order to improve outcomes for this population of women. PMID- 29337006 TI - Relation Between Dietary Essential Fatty Acid Intake and Dry Eye Disease and Meibomian Gland Dysfunction in Postmenopausal Women. AB - PURPOSE: To evaluate the relationship between omega-3 (n-3) and omega-6 (n-6) fatty acids with dry eye disease (DED) and meibomian gland dysfunction (MGD). DESIGN: Cross-sectional study. METHODS: Postmenopausal women (n = 439) underwent a clinical evaluation and completed the Vio Food Frequency Questionnaire to estimate their dietary intake of n-3s and n-6s. Subjects were categorized into 2 binary classifications based on whether or not they had (1) DED and (2) MGD. Mean intake of dietary fatty acids was compared with 2-sample t tests. Univariate logistic regression models were used to estimate the odds ratios for each condition associated with each quintile of n-3s, n-6s, and n-6:n-3 ratios. RESULTS: For DED vs non-DED, there were no significant differences in n-3 intake (1.95 +/- 1.47 g vs 1.92 +/- 1.24 g, P = .86), n-6 intake (15.58 +/- 11.56 g vs 15.44 +/- 10.61 g, P = .91), and n-6:n-3 (8.30 +/- 2.57 vs 8.30 +/- 2.57, P = .99). For MGD vs non-MGD, there were no significant differences in n-3 intake (1.87 +/- 1.35 vs 1.96 +/- 1.39, P = .61), n-6 intake (15.26 +/- 11.85 vs 15.62 +/- 10.93, P = .80), and n-6:n-3 (8.35 +/- 2.94 vs 8.28 +/- 2.42, P = .84). The odds ratios (OR) for DED did not differ significantly from 1.0 for n-3, n-6, or n 6:n-3. High n-3 consumption (OR = 0.22 [0.06-0.78]) and moderate n-6 consumption (OR = 0.37 [0.15-0.91]) were associated with a decreased frequency of MGD. CONCLUSIONS: Dietary consumption of n-3s and n-6s showed no association with DED, but high n-3 consumption and moderate n-6 consumption were protective against MGD in this large sample of postmenopausal women. PMID- 29337008 TI - Ice pack induced perineal analgesia after spontaneous vaginal birth: Randomized controlled trial. AB - BACKGROUND: Ice-pack is widely used for alleviating postpartum perineal pain sustained after birth related perineal trauma. However, it lacks robust evidence on timing and frequency of applications, to ensure the effective and safe use of this therapy. AIMS: To evaluate if a 10min ice-pack application relieved postpartum perineal pain and if the analgesic effect was maintained for up to 2h. METHODS: A randomised controlled trial conducted from December 2012 to February 2013 with 69 primiparous women >=18 years old, 6-24h postpartum, with perineal pain >=3, who had not received anti-inflammatory medication or analgesics after childbirth, who were randomised to a single ice-pack application on the perineum for 10min or standard care. The primary and secondary outcomes were a reduction >=30% in perineal pain intensity, immediately after the application and the maintenance of the analgesic effect for up to 2h, respectively. FINDINGS: Immediately post-intervention, the proportion of women whose perineal pain decreased >=30% was significantly higher in the experimental group. Within 2h, there was no significant difference in the pain levels in both groups. Within 2h, for 61.9% and 89.3% of women in the experimental and control group, respectively, the perineal pain levels remained unchanged. For the remaining participants, perineal pain was increasing after an average time of 1h 45min and 1h 56min for the experimental and control groups, respectively. CONCLUSION: By applying an ice pack for 10min to the perineum, effective pain relief is achieved, that is maintained for between 1h 45min and 2h. PMID- 29337009 TI - Coherence and interlimb force control: Effects of visual gain. AB - Neural coupling across hemispheres and homologous muscles often appears during bimanual motor control. Force coupling in a specific frequency domain may indicate specific bimanual force coordination patterns. This study investigated coherence on pairs of bimanual isometric index finger force while manipulating visual gain and task asymmetry conditions. We used two visual gain conditions (low and high gain = 8 and 512 pixels/N), and created task asymmetry by manipulating coefficient ratios imposed on the left and right index finger forces (0.4:1.6; 1:1; 1.6:0.4, respectively). Unequal coefficient ratios required different contributions from each hand to the bimanual force task resulting in force asymmetry. Fourteen healthy young adults performed bimanual isometric force control at 20% of their maximal level of the summed force of both fingers. We quantified peak coherence and relative phase angle between hands at 0-4, 4-8, and 8-12 Hz, and estimated a signal-to-noise ratio of bimanual forces. The findings revealed higher peak coherence and relative phase angle at 0-4 Hz than at 4-8 and 8-12 Hz for both visual gain conditions. Further, peak coherence and relative phase angle values at 0-4 Hz were larger at the high gain than at the low gain. At the high gain, higher peak coherence at 0-4 Hz collapsed across task asymmetry conditions significantly predicted greater signal-to-noise ratio. These findings indicate that a greater level of visual information facilitates bimanual force coupling at a specific frequency range related to sensorimotor processing. PMID- 29337011 TI - The genus Opisthacanthus Peters, 1861 (Scorpiones: Hormuridae), a remarkable Gondwanian group of scorpions. AB - New comments are proposed on the geographic distribution of genus Opisthacanthus, and the Gondwanian model is further supported. The diversity of the genus is extraordinary in Madagascar, with the same number of species as in continental Africa, but sub-Saharan Africa is home to six out of the nine groups currently recognized of Opisthacanthus. Given the affinities of the Opisthacanthus groups and their current distribution, a center of origin in Africa could be favored for these ancient scorpions. The proposed Gondwana model suggests that the Madagascar Opisthacanthus are closer to those of the New World, which is consistent with the affinities observed in morphological characters. A new species, Opisthacanthus titanus sp. n., is described from the Torotorofotsy Forest, located in Eastern Madagascar. The new species shows affinities with both Opisthacanthus madagascariensis Kraepelin, 1894 known from dry regions in the western portion of the island and Opisthacanthus lavasoa Lourenco, Wilme & Waeber, 2016 only known from the extreme southeast of the island. The new species and O. madagascariensis have similar external morphologies but the morphometric values are markedly distinct. Moreover, O. madagascariensis is exclusively found in spiny forest thickets and open woodlands, whereas the new species was found in the humid forest of Torotorofotsy. The total number of species in Madagascar is now raised to twelve. Biogeographical scenarios are also proposed to infer the origin of the Opisthacanthus and better understand its distribution in the New World, in Africa and Madagascar. PMID- 29337010 TI - Protective effects of a radical scavenger edaravone on oligodendrocyte precursor cells against oxidative stress. AB - Oligodendrocyte precursor cells (OPCs) play critical roles in maintaining the number of oligodendrocytes in white matter. Previously, we have shown that oxidative stress dampens oligodendrocyte regeneration after white matter damage, while a clinically proven radical scavenger, edaravone, supports oligodendrocyte repopulation. However, it is not known how edaravone exerts this beneficial effect against oxidative stress. Using in vivo and in vitro experiments, we have examined whether edaravone exhibits direct OPC-protective effects. For in vivo experiments, prolonged cerebral hypoperfusion was induced by bilateral common carotid artery stenosis in mice. OPC damage was observed on day 14 after the onset of cerebral hypoperfusion, and edaravone was demonstrated to decrease OPC death in cerebral white matter. In vitro experiments also confirmed that edaravone reduced oxidative-stress-induced OPC death. Because white matter damage is a major hallmark of many neurological diseases, and OPCs are instrumental in white matter repair after injury, our current study supports the idea that radical scavengers may provide a potential therapeutic approach for white matter related diseases. PMID- 29337012 TI - Expanding the limits of endoscopic intraorbital tumor resection using 3 dimensional reconstruction. AB - INTRODUCTION: Endoscopic orbital surgery is a nascent field and new tools are required to assist with surgical planning and to ascertain the limits of the tumor resectability. OBJECTIVE: We purpose to utilize three-dimensional radiographic reconstruction to define the theoretical lateral limit of endoscopic resectability of primary orbital tumors and to apply these boundary conditions to surgical cases. METHODS: A three-dimensional orbital model was rendered in 4 representative patients presenting with primary orbital tumors using OsiriX open source imaging software. A 2-Dimensional plane was propagated between the contralateral nare and a line tangential to the long axis of the optic nerve reflecting the trajectory of a trans-septal approach. Any tumor volume falling medial to the optic nerve and/or within the space inferior to this plane of resectability was considered theoretically resectable regardless of how far it extended lateral to the optic nerve as nerve retraction would be unnecessary. Actual tumor volumes were then superimposed over this plan and correlated with surgical outcomes. RESULTS: Among the 4 lesions analyzed, two were fully medial to the optic nerve, one extended lateral to the optic nerve but remained inferior to the plane of resectability, and one extended both lateral to the optic nerve and superior to the plane of resectability. As predicted by the three-dimensional modeling, a complete resection was achieved in all lesions except one that transgressed the plane of resectability. No new diplopia or vision loss was observed in any patient. CONCLUSION: Three-dimensional reconstruction enhances preoperative planning for endoscopic orbital surgery. Tumors that extend lateral to the optic nerve may still be candidates for a purely endoscopic resection as long as they do not extend above the plane of resectability described herein. PMID- 29337013 TI - Inferior turbinectomy: what is the best technique? PMID- 29337014 TI - The anatomic analysis of the vidian canal and the surrounding structures concerning vidian neurectomy using computed tomography scans. AB - INTRODUCTION: The type of endoscopic approach chosen for vidian neurectomy can be specified by evaluating the vidian canal and the surrounding sphenoid sinus structures. OBJECTIVE: The variations and morphometry of the vidian canal were investigated, focusing on the functional correlations between them which are crucial anatomical landmarks for preoperative planning. METHODS: This study was performed using paranasal multidetector computed tomography images that were obtained with a section thickening of 0.625mm of 250 adults. RESULTS: The distributions of 500 vidian canal variants were categorized as follows; Type 1, within the sphenoid corpus (55.6%); Type 2, partially protruding into the sphenoid sinus (34.8%); Type 3, within the sphenoid sinus (9.6%). The pneumatization of the pterygoid process is mostly seen in vidian canal Type 2 (72.4%) and Type 3 (95.8%) (p<0.001). The mean distances from the vidian canal to the foramen rotundum and the palatovaginal canal were greater in the vidian canal Type 2 and 3 with the pterygoid process pneumatization (p<0.001). The prevalence of the intrasphenoid septum between the vidian canal and the vomerine crest and lateral attachment which ending on carotid prominence were much higher in vidian canal Type 3 than other types (p<0.001). The mean angle between the posterior end of the middle turbinate and the lateral margin of the anterior opening of the vidian canal was measured as 33.05+/-7.71 degrees . CONCLUSIONS: Preoperative radiologic analysis of the vidian canal and the surrounding structures will allow surgeons to choose an appropriate endoscopic approach to ensure predictable postoperative outcomes. PMID- 29337015 TI - Improved quantitative fatty acid values with correction of T2 relaxation time in terminal methyl group: In vivo proton magnetic resonance spectroscopy at ultra high field in hepatic steatosis. AB - Proton magnetic resonance spectroscopy (MRS) with optimized relaxation time is an effective method to quantify hepatic fatty acid values and characterize steatosis. The aim of this study is to quantify the difference in hepatic lipid content with metabolic changes during the progression of steatosis by using localized MRS sequence with T2 relaxation time determination. Fatty liver disease was induced in C57BL/6N mice through a high-fat diet (HFD) of pellets containing 60% fat, 20% protein, and 20% carbohydrates. We used stimulated echo acquisition mode (repetition time: 3500 ms; mixing time: 10 ms; echo time: 20 ms) sequence. Using enhanced and mono exponential curve-fitting methods, the lipid relaxation time in mice was estimated at a fixed repetition time of 5000 ms and echo time ranging from 20 to 70 ms. The calculated lipid contents with incorrect and correct relaxation times were as follows: total saturated fatty acid (4.00 +/- 2.90 vs 6.74 +/- 2.25, p < 0.05 at week 0; 15.23 +/- 9.94 vs 25.53 +/- 10.49, p < 0.05 at week 4); total unsaturated fatty acid (0.40 +/- 0.49 vs 0.56 +/- 0.47, p < 0.05 at week 4; 0.33 +/- 0.26 vs 0.60 +/- 0.21, p < 0.01 at week 7); total unsaturated bond (0.48 +/- 0.52 vs 1.05 +/- 0.58, p < 0.05 at week 10). Furthermore, we determined that the correct relaxation times of triglycerides between 0 and 10 weeks were significantly altered in the resonances (~2.03 ppm: 31.07 +/- 1.00 vs 27.62 +/- 1.20, p < 0.01; ~2.25 ppm: 29.10 +/- 1.52 vs 26.39 +/ 1.08, p < 0.05; ~2.78 ppm: 37.67 +/- 2.92 vs 29.37 +/- 2.64, p < 0.001). The work presented focused on the significance of the J-coupling effect. The selection of an appropriate relaxation time considering the J-coupling effect provides an effective method for quantifying lipid contents and characterizing hepatic steatosis. PMID- 29337017 TI - Management of diabetes in older adults. AB - Type 2 diabetes prevalence is high in older adults and is expected to rise in the next decades. Diabetes in the population of frail older adults is accompanied by functional disability, several comorbidities, and premature mortality. A comprehensive geriatric assessment, including functional, cognitive, mental and social status, is advisable for identifying the glycemic targets and glucose lowering therapies, focused on patient preferences, needs, and risks. The therapeutic options for older adults with diabetes are like those for the adult population. However, the pharmacological treatments must be carefully prescribed and monitored, taking into consideration the patient cognitive capacities, the potentially life-threatening drug-drug interactions, the cardiovascular risk, and with the main goal of avoiding hypoglycemia. Also, a careful nutritional evaluation with appropriate tools, as well as a balanced and periodically monitored physical activity, contribute to an effective tailored care plan, as needed by older adults with diabetes. This review evaluates the currently available hypoglycemic drugs and the current indications to the Italian diabetology community, specifically with regard to the treatment of adults aged 75 years or older with diabetes, including the unmet needs by the guidelines. PMID- 29337016 TI - Tear instability importance, mechanisms, validity and reliability of assessment. AB - PURPOSE: To examine the factors which contribute to tear stability and the validity and reliability of methods used for assessing tear break up time which is a core part of an examination of tear stability in dry eye patients. METHODS: A review of publications which are relevant to tear stability and its assessment. RESULTS: Tear break up time may be more invasive than intended if difficulty avoiding blinking during assessment results in reflex tearing. Notwithstanding control of instilled volume and concentration of fluorescein, on-eye dilution is highly variable according to resident tear volume. Blinking to evenly distribute fluorescein may improve tear and lipid layer thickness so habitual tear function is not assessed. Emphasis on a role for Meibomian gland dysfunction as a cause of tear instability may be appropriate in many cases but ignores the roles for other sources of tear lipid and other non-lipid contributions to tear instability such as aqueous or mucus deficiency, desiccated epitheliopathy or anomalous blinking. Objective less-invasive methods eliminate problems of inter-observer variability and can reliably 'maintain vigilance' over wide areas of the tear layer. However less-invasive results to date include mean tear break up findings which are both shorter and longer than expected for normal controls. CONCLUSIONS: Fluorescein tear break up time assessments cannot be standardised and less-invasive methods are not yet standardised. Objective less-invasive and subjective fluorescein break up time tests do not appear to be measuring the same tear phenomena although both should be performed before other invasive procedures. PMID- 29337018 TI - Prevalence of and secular trends in diagnosed diabetes in Italy: 1980-2013. AB - BACKGROUND AND AIMS: The aim of this research was to examine the prevalence of diabetes in Italy over a 34-year period. METHODS AND RESULTS: Self-reported diabetes was assessed in eight health interview surveys of representative samples of Italian population aged 20 years and over. Crude and standardised prevalence were calculated by age, sex, educational level and area of residence. Logistic models were fitted to calculate the contribution of age and BMI to the trend in prevalence. In 2013 nearly 3.4 million Italians had a diagnosis of diabetes, more than twice as many as in 1980. The crude prevalence of diabetes in men rose from 3.3% in 1980 to 7.1% in 2013 (+115%), and from 4.7% to 6.8% in women (+45%). The prevalence was almost stable during the eighties, and started to rise from the beginning of the nineties. One third of the increase in men and two thirds in women is due to the ageing of the population, since the age-standardised prevalence increased by 79% in men and 14% in women. The prevalence of overweight and obesity increased less steeply than diabetes, and their contribution to the trend in diabetes is less relevant than age. Prevalence rose more in the elderly, in low-educated men, and in high-educated women. CONCLUSION: Given that the ageing population plays a considerable role in explaining the trend, and that the number of people in the oldest age groups will continue to grow, the rise in the number of individuals with diabetes will represent a severe challenge for the national health system. PMID- 29337019 TI - Prediabetes is associated with microalbuminuria, reduced kidney function and chronic kidney disease in the general population: The KORA (Cooperative Health Research in the Augsburg Region) F4-Study. AB - BACKGROUND AND AIMS: We investigated the associations of serum fasting (FG) and 2 h postload (2HG) glucose from an oral glucose tolerance test (OGTT), glycated hemoglobin (HbA1c), fasting insulin and the homeostasis model assessment-insulin resistance index (HOMA-IR) with urinary albumin-to-creatinine ratio (ACR) and estimated glomerular filtration rate (eGFR). METHODS AND RESULTS: We performed cross-sectional analyses of 2713 subjects (1429 women; 52.7%) without known type 2 diabetes, aged 31-82 years, from the KORA (Cooperative Health Research in the Augsburg Region) F4-Study. FG, 2HG, HbA1c, fasting insulin, HOMA-IR and glucose tolerance categories were analyzed for association with ACR and eGFR in multivariable adjusted linear and median regression models, and with isolated microalbuminuria (i-MA), isolated reduced kidney function (i-RKF) and chronic kidney disease (CKD, defined as MA and/or RKF) in multivariable adjusted logistic regression models. Among the 2713 study participants, 28% revealed prediabetes (isolated impaired fasting glucose [i-IFG], isolated glucose tolerance [i-IGT] or both by American Diabetes Association definition), 4.2% had unknown type 2 diabetes, 6.5% had i-MA, 3.1% i-RKF and 10.9% CKD. In multivariable adjusted analysis, all continuous variables (FG, 2HG, HbA1c, fasting insulin and HOMA-IR) were associated with i-MA, i-RKF and CKD. The odds ratios (ORs) for i-MA and CKD were 1.54 (95% confidence interval: 1.02-2.33) and 1.58 (1.10-2.25) for individuals with i-IFG. Moreover, the OR for i-RKF was 2.57 (1.31-5.06) for individuals with IFG + IGT. CONCLUSION: Our findings suggest that prediabetes might have harmful effects on the kidney. PMID- 29337020 TI - Inverse association between plasma homocysteine concentrations and type 2 diabetes mellitus among a middle-aged and elderly Chinese population. AB - BACKGROUND AND AIMS: Plasma homocysteine concentrations have been reported to be associated with type 2 diabetes mellitus (T2DM) with controversial findings. The aim of the present study was to investigate the association between plasma homocysteine concentrations and T2DM. METHODS AND RESULTS: A cross-sectional study including 19,085 eligible participants derived from the Dongfeng-Tongji cohort was conducted. Plasma homocysteine concentrations were measured by Abbott Architect i2000 Automatic analyzer and T2DM was defined according to American Diabetes Association criteria. Logistic regression model was used to explore the association between plasma homocysteine concentrations and T2DM. The prevalence of T2DM was 19.0% in the whole population (mean age 62.9 years), 21.8% in males, and 17.1% in females. In the multivariable logistic regression analyses, compared with those in the lowest quintile, the OR (95% CI) of T2DM was 1.05 (0.92-1.21), 0.99 (0.86-1.14), 0.90 (0.78-1.05), and 0.77 (0.66-0.90) for quintile 2 to quintile 5 of homocysteine concentrations after adjustment for potential confounders (P for trend < 0.0001). Homocysteine concentrations were associated with decreased T2DM prevalence risk (OR = 0.88 per SD increase of homocysteine concentration; 95% CI: 0.84-0.93). A significant interaction between homocysteine concentrations and drinking status on T2DM prevalence risk was observed (P for interaction = 0.03). The inverse association of plasma homocysteine concentrations with T2DM prevalence risk was observed in non-drinkers but not in current drinkers. CONCLUSION: Plasma homocysteine concentrations were inversely correlated with T2DM among a middle-aged and elderly Chinese population. PMID- 29337021 TI - Changing Physical Activity Behavior in People With Multiple Sclerosis: A Systematic Review and Meta-Analysis. AB - OBJECTIVES: To (1) systematically review the literature on behavioral interventions for people with multiple sclerosis (MS) that aim to change physical activity (PA) behavior; and (2) explore whether these interventions are clinically effective in improving PA, are theory based, and use established behavior change techniques (BCTs). DATA SOURCES: A systematic electronic search was conducted on databases EBSCO (including AMED, Biomedical Reference Collection: Expanded, CINHAL, MEDLINE, PsycArticles, PsycInfo), PubMed, EMBASE, and Web of Science from April 2017 to May 2017. STUDY SELECTION: Studies were included if (1) the interventions aimed to change PA behavior among people with MS; (2) PA was recognized as a primary outcome measure; and (3) they had a randomized controlled trial (RCT) design. DATA EXTRACTION: The resulting behavioral interventions were coded using the Theory Coding Scheme and the CALO RE taxonomy to assess theory base and BCTs. A meta-analysis was conducted to assess effectiveness. DATA SYNTHESIS: Fourteen RCTs were included. Combined, there was a significant (P=.0003; d=1.00; 95% confidence interval, .46-1.53) short-term change in self-report PA behavior for studies with nonactive control groups. There was no change in objective or long-term PA. Studies failed to discuss results in relation to theory and did not attempt to refine theory. Fifty percent of BCTs within the CALO-RE were used, with BCTs of "goal-setting" and "action-planning" being the most frequently used. CONCLUSIONS: Current evidence supports the efficacy of PA intervention on subjective but not objective outcomes. However, conclusions from this review should be interpreted with caution because of the small number of studies included and small sample size. Further, while using theory in intervention design, interventions in this review have not reported the refining of theory. Exploration of the use of additional BCTs to change PA behavior is also required within future interventions. PMID- 29337022 TI - Reaction Time and Joint Kinematics During Functional Movement in Recently Concussed Individuals. AB - OBJECTIVE: To compare movement reaction time and joint kinematics between athletes with recent concussion and matched control recreational athletes during 3 functional tasks. DESIGN: Cross-sectional. SETTING: Laboratory. PARTICIPANTS: College-aged recreational athletes (N=30) comprising 2 groups (15 participants each): (1) recent concussion group (median time since concussion, 126d; range, 28 432d) and (2) age- and sex-matched control group with no recent concussions. INTERVENTIONS: We investigated movement reaction time and joint kinematics during 3 tasks: (1) jump landing, (2) anticipated cut, and (3) unanticipated cut. MAIN OUTCOME MEASURES: Reaction time and reaction time cost (jump landing reaction time-cut reaction time/jump landing reaction time*100%), along with trunk, hip, and knee joint angles in the sagittal and frontal planes at initial ground contact. RESULTS: There were no reaction time between-group differences, but the control group displayed improved reaction time cost (10.7%) during anticipated cutting compared with the concussed group (0.8%; P=.030). The control group displayed less trunk flexion than the concussed group during the nondominant anticipated cut (5.1 degrees difference; P=.022). There were no other kinematic between-group differences (P>=.079). CONCLUSIONS: We observed subtle reaction time and kinematic differences between individuals with recent concussion and those without concussion more than a month after return to activity after concussion. The clinical interpretation of these findings remains unclear, but may have future implications for postconcussion management and rehabilitation. PMID- 29337023 TI - The Effects of Functional Training, Bicycle Exercise, and Exergaming on Walking Capacity of Elderly Patients With Parkinson Disease: A Pilot Randomized Controlled Single-blinded Trial. AB - OBJECTIVES: To compare the effects of functional training, bicycle exercise, and exergaming on walking capacity of elderly with Parkinson disease (PD). DESIGN: A pilot randomized, controlled, single-blinded trial. SETTING: A state reference health care center for elderly, a public reference outpatient clinic for the elderly. PARTICIPANTS: Elderly individuals (>=60 years of age; N=62) with idiopathic PD (stage 2 to 3 of modified Hoehn and Yahr staging scale) according to the London Brain Bank. INTERVENTION: The participants were randomly assigned to three groups. Group 1 (G1) participated in functional training (n=22); group 2 (G2) performed bicycle exercise (n=20), and group 3 (G3) trained with Kinect Adventures (Microsoft, Redmond, WA) exergames (n=20). MAIN OUTCOME MEASURES: The primary outcome measure was the 6-minute walk test (6MWT); secondary outcome measures were the 10-m walk test (10MWT), sitting-rising test (SRT), body mass index, Parkinson Disease Questionnaire-39, World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0), and 15-item Geriatric Depression Scale. RESULTS: All groups showed significant improvements in 6MWT (G1 P=.008; G2 P=.001; G3 P=.005), SRT (G1 P<.001; G2 P=.001; G3 P=.003), and WHODAS 2.0 (G1 P=.018; G2 P=.019; G3 P=.041). Only G3 improved gait speed in 10MWT (P=.11). G1 (P=.014) and G3 (P=.004) improved quality of life. No difference was found between groups. CONCLUSIONS: Eight weeks of exergaming can improve the walking capacity of elderly patients with PD. Exergame training had similar outcomes compared with functional training and bicycle exercise. The three physical exercise modalities presented significant improvements on walking capacity, ability to stand up and sit, and functionality of the participants. PMID- 29337024 TI - Moderators of Treatment Outcomes After Telehealth Self-Management and Education in Adults With Multiple Sclerosis: A Secondary Analysis of a Randomized Controlled Trial. AB - OBJECTIVE: To examine moderators of treatment effects in a randomized controlled trial comparing a telehealth self-management intervention with a telehealth multiple sclerosis (MS) education intervention for fatigue, pain, and mood in adults with MS. DESIGN: Secondary analysis of a single-blind randomized controlled trial. SETTING: Community. PARTICIPANTS: Adults with MS and chronic fatigue, chronic pain, and/or moderate depressive symptoms (N=163) recruited from across the United States. INTERVENTIONS: Two 8-week, telephone-delivered symptom interventions delivered 1:1: a self-management intervention (n=75) and an MS education intervention (n=88). MAIN OUTCOME MEASURES: Outcome measures were fatigue impact pain interference, and depressive symptom severity assessed at baseline and posttreatment. Potential moderators of treatment effects assessed at baseline were demographics (age, sex, and education), clinical characteristics (disease duration and disability severity), symptoms (perceived cognitive impairment and pain intensity), baseline levels of the treatment outcomes (pain interference, fatigue impact and depressive symptom severity), and cognitive behavioral factors (pain catastrophizing, fatigue catastrophizing, self-efficacy, and patient activation). RESULTS: Moderation analyses found significant moderation for fatigue impact but not for pain intensity or depressive symptom severity. Baseline patient activation interacted with treatment group to predict fatigue impact at posttreatment (P=.049). Among participants with high baseline patient activation, the self-management group reported significantly less fatigue at posttreatment than the education group. No other variables moderated the study outcomes. CONCLUSIONS: At the group level, participants responded to both interventions, regardless of disease characteristics, demographics, symptom levels, and cognitive behavioral factors. Self-management and education are both potentially beneficial symptom treatments that may be recommended to individuals with MS and chronic pain, fatigue, and/or depressive symptoms. PMID- 29337025 TI - Hepatosplenic T-cell Lymphoma: a review of clinicopathologic features, pathogenesis, and prognostic factors. AB - Hepatosplenic T-cell lymphoma (HSTCL) is a rare and clinically aggressive type of T-cell lymphoma that arises most often in adolescents and young adults. Patients with HSTCL commonly present with B-symptoms and cytopenias, which may suggest a diagnosis of acute leukemia initially. Patients present with extranodal disease involving the spleen, liver and bone marrow; lymphadenopathy is usually absent. The lymphoma cells can show a spectrum of cell sizes and are of T-cell lineage, often negative for CD4 and CD8 and positive for T-cell receptor gammadelta or, less often, alphabeta. Recent studies have identified gene mutations in oncogenic pathways that are likely involved in pathogenesis and may be targets for therapy. Mutations in STAT3 or STAT5B lead to activation of the JAK/STAT pathway, and mutations involving SETD2, IN080 and ARID1 are involved in chromatin modification. Currently, there is no consensus standard of care for HSTCL patients, although several studies support a role for allogeneic hematopoietic stem cell transplant. Although patients with HSTCL are best treated in the context of clinical trials, the rarity of these neoplasms likely necessitates a multi-institutional approach. In this review, we focus on the clinicopathologic and genetic characteristics of HSTCL. We also discuss the differential diagnosis and therapeutic approaches. PMID- 29337026 TI - Effect of recombinant human growth hormone on rotator cuff healing after arthroscopic repair: preliminary result of a multicenter, prospective, randomized, open-label blinded end point clinical exploratory trial. AB - BACKGROUND: This study evaluated the effect of systemic injection of recombinant human growth hormone (rhGH) on outcomes after arthroscopic rotator cuff repair. METHODS: This multicenter, prospective, randomized, comparative trial, randomized patients who underwent arthroscopic repair of large-sized rotator cuff tears into 3 groups: rhGH 4 mg group (n = 26), rhGH 8 mg group (n = 24) , and control group (n = 26). Sustained release rhGH was injected subcutaneously once weekly for 3 months postoperatively. The healing failure rate (primary end point), fatty infiltration, and atrophy of the supraspinatus muscle, and functional scores (Constant and American Shoulder and Elbow Surgeons scores) were evaluated at 6 months. Range of motion, pain visual analog scale, and serum insulin-like growth factor-1 level were measured at each follow-up. RESULTS: The healing failure rate was similar between groups (rhGH 4 mg group, 30.8%; rhGH 8 mg group, 16.7%; and control group, 34.6%; all P > .05) The proportion of severe fatty infiltration (Goutallier grade >=3) was 20.8% in the rhGH 8 mg group, 23.1% in the rhGH 4 mg group, and 34.6% in the control group (P > .05). Functional outcomes, range of motion, and pain visual analog scale were similar between groups (all P > .05). The rhGH 8 mg group showed more increased peak insulin-like growth factor-1 level (279.43 ng/mL) than the rhGH 4 mg group ((196.82 ng/mL) and control group (186.31 ng/mL), which was not statistically different (all P > .05). No rhGH injection related major safety issues occurred. CONCLUSIONS: This preliminary study showed no statistically significant improvement in healing or outcomes related to the treatment of rhGH after rotator cuff repair. However, further study with more enrolled patients after resetting the rhGH dose or daily administration protocol would be mandatory. PMID- 29337027 TI - An assessment of proximal humerus density with reference to stemless implants. AB - BACKGROUND: Shoulder arthroplasty humeral components have undergone several generational changes, with systems now offering shorter stems and stemless options. The stemless humeral implants obtain fixation in the trabecular bone of the proximal humerus through elaborate fixation features. To optimize implant design, the regional variations in bone density within the proximal humerus should be determined. As such, the purpose of this computed tomography-based study was to map the regional variations in bone density of the proximal humerus. METHODS: The trabecular-canal of the proximal humerus was extracted from computed tomography scans of 98 subjects and divided into 13 slices and 5 subsections (central, anterior, posterior, medial, and lateral). The average apparent density (rhoAVG) was then quantified in each subsection of the trabecular-canal. RESULTS: Slice depth, subsection, and gender were all significant main effects, with additional significant interactions between slice depth, subsection, and osteoarthritic condition. The slices above the resection plane had the greatest rhoAVG, with densities decreasing down the canal. The central subsection had significantly lower rhoAVG than the peripheral sections, and the medial subsection tended to have the highest rhoAVG (P < .001). Furthermore, the rhoAVG of male subjects was significantly greater than that of female subjects (P < .001). CONCLUSIONS: The apparent density of the proximal humerus' trabecular canal is nonuniform. This has implications for the design of stemless implants, indicating that implants seeking purchase in higher density bone should take advantage of the peripheral regions of the trabecular-canal within the first 15 20 mm beneath the humeral head resection plane. PMID- 29337028 TI - Bipolar pedicled teres major transfer for irreparable subscapularis tendon tears: an anatomic feasibility study. AB - BACKGROUND: Subscapularis (SSC) tendon tears are a challenging problem because they can significantly alter shoulder mechanics and function. Tendon retraction and advanced fatty degeneration associated with a chronic tear may make it irreparable. Tendon transfers options for such tears are viable, but results in the setting of associated glenohumeral instability are inconsistent. With the potential to recreate the SSC line of pull, the teres major (TM) may be a viable option for transfer. This cadaveric study investigated the feasibility and outlined the steps of a bipolar, pedicled TM transfer for irreparable SSC tendon tears. METHODS: Eight fresh frozen cadaver torsos from 4 women and 4 men (average age, 84 years; range, 68-96 years) were dissected. Anatomic details comparing TM to SSC were examined, including muscle width, length, thickness, and line of pull in the scapular plane. In addition, a surgical technique was described for implementing the pedicled TM transfer. RESULTS: Measurements between the TM and SSC were comparable, with the exception of muscle belly width, which was significantly greater in the SSC. With transfer of the TM, there was no impingement or tension on the brachial plexus or the neurovascular pedicle of the TM. The line of pull of the TM relative to the SSC had a difference of 9 degrees . CONCLUSIONS: This study demonstrates that a bipolar TM tendon transfer is an anatomically feasible option for reconstruction of an irreparable SSC tendon tear. Further clinical studies are necessary to understand its outcome in in vivo conditions. PMID- 29337029 TI - Arthroscopic Latarjet procedure with double-button fixation: short-term complications and learning curve analysis. AB - BACKGROUND: The arthroscopic Latarjet with double-button fixation is a guided procedure recently proposed to treat anterior shoulder instability with glenoid bone loss. The goal of this study was to report intraoperative and early postoperative complications and to analyze the learning curve. METHODS: This was a prospective, nonrandomized study that included 88 patients. Intraoperative or postoperative complications as well as adverse events and operative time were recorded. Clinical outcomes were evaluated at 2 weeks, 1.5 months, and at the last follow-up. Radiologic analysis was based on an immediate postoperative computed tomography scan. RESULTS: The intraoperative complications or adverse events rate was 3.3%: 1 conversion to open surgery, 1 bone block fracture, and 1 instrumentation problem. The postoperative complication rate was 6.8%: 4 coracoid migrations, and 2 subluxations. None of these complications occurred beyond the 10th case performed. The average operative time significantly decreased with surgical experience (r = -0.8426; 95% confidence interval, -0.9074 to -0.7384; P < .0001) to reach 76 +/- 12 minutes (range, 62-95 minutes) at 30 cases. Radiologically, 90% of the bone blocks were flush and subequatorial beyond the 30th case. At a mean follow-up of 12.6 months (range, 6-24 months), Walch-Duplay and Rowe scores were 80 and 81 points, respectively. CONCLUSIONS: At short-term follow-up, the arthroscopic Latarjet procedure with double-button fixation exhibited a low complication rate. Operative time significantly improved with surgical experience and was optimized after 30 cases. Early clinical results confirmed that this procedure can be safe and reliable. PMID- 29337030 TI - Nasal IL-25 predicts the response to oral corticosteroids in chronic rhinosinusitis with nasal polyps. PMID- 29337031 TI - Does vagus nerve stimulation influence pregnancy outcomes? PMID- 29337032 TI - Biohydrogen fermentation of galactose at various substrate concentrations in an immobilized system and its microbial correspondence. AB - The effects of substrate concentration on fermentative hydrogen production from galactose at a fixed hydraulic retention time of 12 h were investigated in an immobilized continuously stirred tank reactor. Peak hydrogen production rate and hydrogen yield of 9.57 L/L-d and 1.10 mol/mol galactoseadded, respectively, were obtained at a feed substrate concentration of 30 g/L and an organic loading rate of 60 L/L-d. Quantitative polymerase chain reaction analysis showed that the variations in the performance resulted primarily from metabolic alterations within the metabolism of the established microbial community rather than modifications in the population. The results obtained showed that optimal substrate concentration is essential for the efficient, continuous production of hydrogen from galactose. PMID- 29337033 TI - Gliclazide, a KATP channel blocker, inhibits vascular smooth muscle cell proliferation through the CaMKKbeta-AMPK pathway. AB - Gliclazide, a sulfonylurea that is widely used to treat type II-diabetes, specifically blocks KATP channels and recombinant smooth muscle (SUR2B/Kir6.1) KATP channels with high potency. Furthermore, it exerts antioxidant properties and inhibits tumor cell proliferation. In this study, we investigated the inhibitory effect of gliclazide on vascular smooth muscle cell (VSMC) proliferation and tried to identify the underlying signaling pathway. We first investigated the effect of gliclazide-induced AMP-activated protein kinase (AMPK) activation on the proliferation of VSMCs. Gliclazide induced phosphorylation of AMPK in a dose- and time-dependent manner and inhibited VSMC proliferation following stimulation by platelet-derived growth factor (PDGF). However, KATP channel openers and Kir6.1 siRNA prevented gliclazide-mediated inhibition of VSMC proliferation. Gliclazide also increased the levels of Ca2+/calmodulin-dependent protein kinase kinase beta (CaMKKbeta), an upstream kinase of AMPK. These findings suggested that the effects of KATP channels on AMPK activity were mediated by the regulation of intracellular Ca2+ levels. Oral administration of 2mg/kg gliclazide resulted in the activation of CaMKKbeta and AMPK in vivo, suggesting that gliclazide suppressed VSMC proliferation via the CaMKKbeta-AMPK signaling pathway. Taken together, our observations indicated that gliclazide induced AMPK activation may act to prevent diabetes-associated atherosclerosis. PMID- 29337034 TI - Establishment of trimester-specific reference range for thyroid hormones during pregnancy. AB - OBJECTIVE: Physiological gestational changes are associated with alterations in thyroid function which require different biochemical interpretation from that of non-pregnant women and necessitate established pregnancy-specific reference ranges. We aimed to identify the trimester-specific ranges of thyroid markers in a healthy population of pregnant Iranian women. METHODS: In this self-sequential study, data were extracted from The Tehran Thyroid and Pregnancy Study; a total of 314 women were tested during the 1st, 2nd and 3rd trimesters for serum levels of thyrotropin (TSH), thyroxine (T4), free thyroxine index (FT4I) and thyroid peroxidase antibody (TPOAb). Trimester-specific reference intervals for TSH, T4 and FT4I and first trimester reference range for TPOAb were estimated. The normal and modulus exponential-normal models were fitted by maximum likelihood using STATA software. The 2.5th and 97.5th percentiles of thyroid parameters were determined and used as reference intervals. RESULTS: Mean+/-SD age of participants was 26.8+/-5.2years. Estimated reference intervals for TSH, T4 and FT4I in the 1st, 2nd and 3rd trimesters corresponding to the 2.5th and 97.5th percentiles were 0.14-6.14, 0.43-4.64, 0.63-3.9MUIU/ml; 78.01-215.19, 93.23 243.87, 89.61-211.37nmol/L; and 1.73-4.53, 1.96-5.64, 1.72-4.30, respectively. Reference interval for TPOAb in the 1st trimester was 1.40-38.02IU/mL. Median of TSH was low in the 1st trimester, and gradually increased until 2nd trimester, followed by a slight decrease onward. A decreasing trend in TSH levels was observed in higher centiles with advancing gestational age. CONCLUSION: This study provides trimester-specific reference ranges for some common thyroid markers among healthy Iranian women in an iodine sufficient area, to prevent biochemical misinterpretations during pregnancy. PMID- 29337035 TI - Early Warning Scores do not accurately predict mortality in sepsis: A meta analysis and systematic review of the literature. AB - OBJECTIVES: Early Warning Scores are used to evaluate patients in many hospital settings. It is not clear if these are accurate in predicting mortality in sepsis. We performed a systematic review and meta-analysis of multiple studies in sepsis. Our aim was to estimate the accuracy of EWS for mortality in this setting. METHODS: PubMED, CINAHL, Cochrane, Web of Science and EMBASE were searched to October 2016. Studies of adults with sepsis who had EWS calculated using any appropriate tool (e.g. NEWS, MEWS) were eligible for inclusion. Study quality was assessed using QUADAS-2. Summary estimates were derived using HSROC analysis. RESULTS: Six studies (4298 participants) were included. Results suggest that EWS cannot be used to predict which patients with sepsis will (positive likelihood ratio 1.79, 95% CI 1.53 to 2.11) or will not die (negative likelihood ratio 0.59, 95% CI 0.45 to 0.78). Two studies were rated as low risk of bias and one as unclear risk of bias on all domains. The other three studies were judged at high risk of bias in one domain. CONCLUSION: Early Warning Scores are not sufficiently accurate to rule in or rule out mortality in patients with sepsis, based on the evidence available, which is generally poor quality. PMID- 29337036 TI - Potential of real-time PCR threshold cycle (CT) to predict presence of free toxin and clinically relevant C. difficile infection (CDI) in patients with cancer: A reply. PMID- 29337037 TI - Synthesis of new sarsasapogenin derivatives with antiproliferative and apoptotic effects in MCF-7 cells. AB - Sarsasapogenin, a kind of mainly effective component of Anemarrhena asphodeloides Bunge, possesses good antitumor properties. Two series of new sarsasapogenin derivatives were synthesized and evaluated for their cytotoxicities against three human cancer cell lines (HepG2, A549, MCF-7) using the MTT assay. The structure activity relationship revealed that the N, N-dimethylamino, pyrrolidinyl, and imidazolyl substituted at the C26 position could increase the antitumor efficacy of the 3-oxo sarsasapogenin series of compounds. Compound 4c with pyrrolidinyl substituted at the C26 position exhibited the greatest cytotoxic activity against MCF-7 cell line (IC50 = 10.66 MUM), which was 4.3-fold more potent than sarsasapogenin. Action mechanism investigations showed that 4c could inhibit the colony formation and induce the apoptosis of MCF-7 cells. Further researches showed that a decrease in mitochondrial membrane potential and increases in the expression level of cleaved-PARP and the ratio of Bax/Bcl-2 were observed in MCF 7 cells after treatment with 4c, suggesting that the mitochondrial pathway was involved in the 4c-mediated apoptosis. These results show that compound 4c may serve as a lead for further optimization. PMID- 29337038 TI - Back to the future: Epigenetic clock plasticity towards healthy aging. AB - Aging is the most important risk factor for major human lifestyle diseases, including cancer, neurological and cardiometabolic disorders. Due to the complex interplay between genetics, lifestyle and environmental factors, some individuals seem to age faster than others, whereas centenarians seem to have a slower aging process. Therefore, a biochemical biomarker reflecting the relative biological age would be helpful to predict an individual's health status and aging disease risk. Although it is already known for years that cumulative epigenetic changes occur upon aging, DNA methylation patterns were only recently used to construct an epigenetic clock predictor for biological age, which is a measure of how well your body functions compared to your chronological age. Moreover, the epigenetic DNA methylation clock signature is increasingly applied as a biomarker to estimate aging disease susceptibility and mortality risk. Finally, the epigenetic clock signature could be used as a lifestyle management tool to monitor healthy aging, to evaluate preventive interventions against chronic aging disorders and to extend healthy lifespan. Dissecting the mechanism of the epigenetic aging clock will yield valuable insights into the aging process and how it can be manipulated to improve health span. PMID- 29337040 TI - Colonic perforation due to GI histoplasmosis in an immunocompetent host mimicking Crohn's disease. PMID- 29337039 TI - Patients with small and diminutive proximal hyperplastic polyps have higher rates of synchronous advanced neoplasia compared with patients without serrated lesions. AB - BACKGROUND AND AIMS: The association of proximal small and diminutive hyperplastic polyps (HPs) with synchronous advanced neoplasia is not well defined. However, sessile serrated polyps (SSPs), even when small, are known to portend a risk of synchronous neoplasia. Currently, the U.S. Multi-Society Task Force on Colorectal Cancer does not recommend a change in the surveillance interval when proximal small HPs are detected. We aimed to compare the rates of synchronous advanced neoplasia in a screening colonoscopy cohort of patients with small and then diminutive proximal HPs in comparison, first to a cohort absent any serrated or proximal HPs and then in comparison with a cohort with small proximal SSPs. METHODS: Consecutive screening colonoscopies were recorded between 2005 and 2010 at an academic medical center. Patients were divided into 3 mutually exclusive groups. Group 1 consisted of patients with at least 1 HP that was proximal to the sigmoid colon, <1 cm in endoscopic size, and up to 3 total HPs in number. Group 2 included patients without any proximal HPs or SSPs. Group 3 consisted of patients with 1 to 2 SSPs, with at least 1 being proximal to the sigmoid colon, that were <1 cm in endoscopic size and without dysplasia. Rates of synchronous advanced neoplasia in patients with small (<1 cm) and diminutive (<=5 mm) proximal HPs were compared with the rates for the other 2 groups. RESULTS: There were 482 of 2569 patients (18.8%) with a small proximal HP who met the criteria for Group 1. The rate of synchronous advanced neoplasia in patients with a small proximal HP (61/482, 12.7%) was significantly greater compared with the average risk in the non-serrated cohort (Group 2, 133/1878, 7.1%; P < .001). There was no significant difference in the rate of synchronous advanced neoplasia when the small proximal HP group was subdivided by size (<=5 mm, 51/404, 12.6% vs 6-9 mm, 10/78, 12.8%; P = 1.00). The rate of synchronous advanced neoplasia in patients with diminutive (<=5 mm) proximal HPs (51/404, 12.6%) was not significantly different from the rate observed with proximal SSPs of similar size (17/113, 15.0%; P = .529). CONCLUSION: Patients with small and diminutive proximal HPs tend to harbor higher rates of synchronous advanced neoplasia compared with those without any serrated lesions detected on screening colonoscopy. Surveillance outcomes for metachronous advanced neoplasia for patients with small proximal HPs deserves further study. The synchronous advanced neoplasia rate in patients with proximal diminutive HPs is similar to that of proximal diminutive SSPs and could have implications in a resect and discard strategy. PMID- 29337041 TI - Provision of abortion and other reproductive health services among former Midwest Access Project trainees. AB - OBJECTIVE: The Midwest Access Project (MAP) offers opt-in training to students, residents and practicing clinicians in reproductive health care including abortion. We surveyed MAP alumni to identify current practice characteristics and assess predictors of reproductive health service provision. STUDY DESIGN: We sent an online survey to alumni of MAP's Individual Clinical Training program, 2007 2015 (n=127). The primary outcome was current provision of any abortion service. Secondary outcomes included providing specific abortion services and other reproductive services. RESULTS: We received responses from 61% of eligible MAP alumni (n=77 out of 127). The majority reported a specialty of Family Medicine (68%) and current location in the Midwest (52%). Among current residents, fellows or clinicians practicing in a field whose scope includes abortion (n=56), 50% provide abortion. Most (84%) provide outpatient miscarriage management, and nearly all (>=96%) provide pregnancy options counseling and full scope contraception. Respondents who received the most advanced training in medication abortion as part of their MAP training were more likely to report providing abortion in their current practice than those who did not (63% vs. 32%, p=.027), as were those who completed more than one MAP rotation compared to those who completed one rotation (100% vs. 44%, p=.009). CONCLUSIONS: Half of MAP's alumni provide some abortion care. Nearly all provide comprehensive counseling and contraceptive services. IMPLICATIONS: Opt-in training is a promising strategy to develop providers of comprehensive reproductive health care. PMID- 29337042 TI - Endovascular recanalization for nonmalignant obstruction of the inferior vena cava. AB - OBJECTIVE: The aim of this study was to evaluate outcomes of endovascular recanalization of the inferior vena cava (IVC) and iliac veins with long-standing chronic venous obstruction caused by nonmalignant disease. METHODS: Medical records for 66 patients who underwent endovascular recanalization of the IVC with or without iliac veins from January 2001 to December 2014 at our medical center were retrospectively reviewed. Primary outcomes included morbidity and mortality; secondary outcomes included primary, primary assisted, and secondary patency and resolution of symptoms. RESULTS: Forty-five (68%) patients were male; the mean age was 43 years (range, 17-83 years). All but one patient had chronic symptoms (mean duration, 8 +/- 9 years). Clinical, Etiology, Anatomy, and Pathophysiology classes included 3, 4a, 4b, 5, and 6 in 41, 2, 1, 2, and 20 patients, respectively. Mean Venous Clinical Severity Score was 12.4 +/- 6.5. Fifty-nine patients (89%) had history of deep venous thrombosis, and 13 also had pulmonary embolism. Twenty-five patients (38%) had an IVC filter; 20 (30%) had thrombophilia. The obstruction involved the infrarenal IVC in 44 patients and both the infrarenal and suprarenal IVC in 22 patients. All recanalizations were performed under conscious sedation and local anesthesia and involved sequential angioplasty and stent placement into the IVC, with or without iliac vein stenting. Venous access included bilateral femoral veins and right internal jugular vein. Stents used were Wallstents (Boston Scientific, Marlborough, Mass; n = 70), Protege stents (ev3, Plymouth, Minn; n = 49), Gianturco (Cook Medical, Bloomington, Ind; n = 44), and Luminexx (Bard, Tempe, Ariz; n = 1). Pressure gradients were 6.7 +/- 4.0 mm Hg before and 0.9 +/- 1.1 mm Hg after stenting (P < .001). Procedural success was 90% and 100% at first and second attempt at recanalization, respectively. There was no mortality or clinically significant pulmonary embolism. Four patients had five complications: two developed an arteriovenous fistula, one patient developed groin hematoma that required open evacuation, and one had peri-IVC hematoma and femoral vein thrombosis that required repeated angioplasty and stenting; 93% of patients received long-term anticoagulation. Follow-up was 42 +/- 36 months. Four patients were lost to follow-up. Primary patency, primary assisted patency, and secondary patency at 36 months were 78%, 87%, and 91%, respectively. Symptoms resolved in 83% of patients. On multivariable regression analysis, hypercoagulable state was the only predictor of reocclusion of the recanalized veins. CONCLUSIONS: Endovascular recanalization for nonmalignant symptomatic IVC and associated iliofemoral venous obstruction with balloon angioplasty and self-expanding stents is technically challenging; however, it is safe and durable. In our retrospective study, estimated patency rates at 36 months were >85%, and clinical outcomes were excellent. Venous stenting should be attempted for chronic nonmalignant IVC and associated iliac or iliofemoral venous obstructions before open surgical reconstruction is contemplated. PMID- 29337043 TI - Membrane-permeable Rab27A is a regulator of the acrosome reaction: Role of geranylgeranylation and guanine nucleotides. AB - The acrosome reaction is the regulated exocytosis of mammalian sperm's single secretory granule, essential for fertilization. It relies on small GTPases, the cAMP binding protein Epac, and the SNARE complex, among other components. Here, we describe a novel tool to investigate Rab27-related signaling pathways: a hybrid recombinant protein consisting of human Rab27A fused to TAT, a cell penetrating peptide. With this tool, we aimed to unravel the connection between Rab3, Rab27 and Rap1 in sperm exocytosis and to deepen our understanding about how isoprenylation and guanine nucleotides influence the behaviour of Rab27 in exocytosis. Our results show that TAT-Rab27A-GTP-gamma-S permeated into live sperm and triggered acrosomal exocytosis per se when geraylgeranylated but inhibited it when not lipid-modified. Likewise, an impermeant version of Rab27A elicited exocytosis in streptolysin O-permeabilized - but not in non permeabilized - cells when geranylgeranylated and active. When GDP-beta-S substituted for GTP-gamma-S, isoprenylated TAT-Rab27A inhibited the acrosome reaction triggered by progesterone and an Epac-selective cAMP analogue, whereas the non-isoprenylated protein did not. Geranylgeranylated TAT-Rab27A-GTP-gamma-S promoted the exchange of GDP for GTP on Rab3 and Rap1 detected by far immunofluorescence with Rab3-GTP and Rap1-GTP binding cassettes. In contrast, TAT Rab27A lacking isoprenylation or loaded with GDP-beta-S prevented the activation of Rab3 and Rap1 elicited by progesterone. Challenging streptolysin O permeabilized human sperm with calcium increased the population of sperm with Rap1-GTP, Rab3-GTP and Rab27-GTP in the acrosomal region; pretreatment with anti Rab27 antibodies prevented the activation of all three. The novel findings reported here include: the description of membrane permeant TAT-Rab27A as a trustworthy tool to unveil the regulation of the human sperm acrosome reaction by Rab27 under physiological conditions; that the activation of endogenous Rab27 is required for that of Rab3 and Rap1; and the connection between Epac and Rab27 and between Rab27 and the configuration of the SNARE complex. Moreover, we present direct evidence that Rab27A's lipid modification, and activation/inactivation status correlate with its stimulatory or inhibitory roles in exocytosis. PMID- 29337044 TI - Lysophosphatidic acid regulates the motility of MCF10CA1a breast cancer cell sheets via two opposing signaling pathways. AB - Aberrant cell migration leads to the dispersal of malignant cells. The ubiquitous lipid mediator lysophosphatidic acid (LPA) modulates cell migration and is implicated in tumor progression. Yet, the signaling cascades that regulate LPA's effect on cell motility remain unclear. Using time-lapse imaging and quantitative analyses, we studied the role of signaling cascades that act downstream of LPA on the motility of MCF10CA1a breast cancer cells. We found that LPA alters cell motility via two major signaling pathways. The Rho/ROCK signaling cascade is the predominant pathway that increases E-Cadherin containing cell-cell adhesions and cortical arrangement of actomyosin to promote slow, directional, spatially coherent and temporally consistent movement. In contrast, Galphai/o- and Galphaq/11-dependent signaling cascades lessen directionality and support the independent movement of cells. The net effect of LPA on breast cancer cell migration therefore results from the integrated signaling activity of the Rho/ROCK and Galphai/o- and Galphaq/11-dependent pathways, thus allowing for a dynamic migratory response to changes in the cellular or microenvironmental context. PMID- 29337045 TI - Increased dendritic length in CA1 and CA3 hippocampal neurons during the metestrus phase in Wistar rats. AB - Studies have shown that changes in ovarian hormone concentrations promote natural fluctuations in the density of dendritic spines of hippocampal neurons in female Sprague-Dawley rats, without changes in dendritic length, throughout the estrous cycle. However, it is still unknown whether these fluctuations are present in other rat strains. Due to our interest in Wistar rats, the objective of the present study was to determine if there is natural dendritic remodeling in the female Wistar rat throughout the estrous cycle. This study analyzed the dendritic arborization of pyramidal neurons CA1 and CA3 of the dorsal hippocampus in each phase of the estrous cycle. We used the Golgi-Cox staining method and Sholl analysis to evaluate the dendritic length and density of dendritic spines. Our results showed that the dendritic length of the basilar and apical trees of CA1 neurons was longer in the metestrus phase. In CA3 neurons, only the apical dendritic trees showed longer dendritic length during metestrus. There was no variation in the density of dendritic spines in relation to any of the phases of the estrous cycle. Taken together, these results indicated that pyramidal neurons of the CA1 and CA3 regions of the dorsal hippocampus in the Wistar rat exhibited changes in dendritic length in the metestrus phase of the estrous cycle. Together, these data are important when considering the use of these organisms in behavioral studies. PMID- 29337046 TI - The impact of fast track protocols in upper gastrointestinal surgery: A meta analysis of observational studies. AB - BACKGROUND: Fast track surgery has been implemented in colorectal procedures during the last decade and is accompanied by significant improvement in patient outcomes during the early postoperative period. However, to date, its adoption in upper gastrointestinal surgery remains a matter of debate. In this context, we aimed to summarize the existing evidence in the international literature. MATERIALS AND METHODS: We searched Medline, Scopus, ClinicalTrials.gov and Cochrane Central Register databases for published randomized controlled trials. The meta-analysis was performed with the RevMan 5.3.5 software. MAIN FINDINGS: Thirty studies were finally included in the present meta-analysis. The post operative morbidity was not influenced by the implementation of fast track surgery (FTS) (OR 0.84, 95% CI 0.64-1.09). However, in cases treated with laparoscopic surgery fast track surgery seemed to reduce morbidity by 50% (p = .006). The overall mortality of patients was low in the majority of included studies and was not influenced by fast track surgery (OR 1.12, 95% CI 0.50-2.52). The duration of postoperative hospitalization was significantly reduced with the adoption of FTS (MD -2.24, 95% CI -2.63 to -1.85 days). Concurrently, the overall cost was significantly reduced in cases treated with FTS (MD -982.30, 95% CI 1367.68 to -596.91 U.S dollars). CONCLUSION: According to the findings of our meta-analysis suggest that FTS seems to be safe in patients undergoing upper gastrointestinal surgery and reduce both the days of postoperative hospitalization and the overall cost. This observation should be taken into account in future recommendations to enhance the implementation of FTS protocols in current clinical practice. PMID- 29337047 TI - Imaging flow cytometry: A method for examining dynamic native FOXO1 localization in human lymphocytes. AB - While flow cytometry can reliably assess surface and intracellular marker expression within small cell populations, it does not provide any information on protein localization. Several key transcription factors (TF) downstream of lymphocyte surface receptors are regulated by nuclear versus cytoplasmic localization, and one such TF is Forkhead box O1 (FOXO1). FOXO1 integrates antigen-binding, co-receptor activation and metabolic signals in lymphocytes, leading to proliferation and differentiation. Importantly, the nuclear or cytoplasmic localization of FOXO1 is key for gene expression leading to different lymphocyte phenotypes. In effector lymphocytes (Teff), for example, lymphocyte receptor (TCR) signaling leads to an Akt-dependent phosphorylation of FOXO1. Phosphorylated FOXO1 is excluded from the nucleus, promoting proliferation and effector functions. In contrast, nuclear retention of FOXO1 is essential for early and late development of T and B cells and for the thymic development and stability of regulatory T cells. Given the critical role of FOXO1 localization as an indicator and determinant of function, quantification of FOXO1 cellular localization in human lymphocytes can help determine immune cell activation and activity in experimental and clinical scenarios. The standard method used to determine subcellular protein localization is the analysis of nuclear and cytoplasmic protein extracts by Western blotting (WB). However, available techniques, such as WB, are limited by a requirement for a large number of cells and inability to determine FOXO1 localization in individual cells or sub populations. In contrast, a standardized method using an imaging flow cytometer (IFC) such as the Amnis ImagestreamX Mark II, would provide both qualitative, per cell localization information, as well as quantitative data on gated sub populations. To this end, we report the development and optimization of an IFC protocol to examine native FOXO1 localization in human lymphocytes. A human CD4+ lymphocyte line, HuT102, as well as primary human T cells, were assessed for dynamic FOXO1 localization after treatment with a lymphocyte receptor signaling mimic (PMA/Ionomycin). IFC nuclear translocation analysis permitted us to precisely quantify the alterations over time in nuclear and cytoplasmic localization of native FOXO1 on a per cell basis, including within specific, user defined sub-populations of cells. For human lymphocytes, using IFC to assess and quantify dynamic FOXO1 localization allows the user to simultaneously study multiple lymphocyte subpopulations as well as to delineate differing effects of dynamic FOXO1 localization that may be lost when other available methods are used. PMID- 29337048 TI - Pathologic Findings of Symptomatic Carotid Artery Stenosis Several Decades after Radiation Therapy: A Case Report. AB - Improved long-term survival of malignancy has drawn increased attention to late cerebrovascular toxicity after neck radiotherapy. Recently, neck radiotherapy has been found as a significant risk factor of carotid artery stenosis and ischemic stroke; however, long-term adverse effects of radiation in large arteries remain unknown. Here, we described an autopsied case with recurrent ischemic stroke associated with ipsilateral carotid artery stenosis several decades after neck radiation therapy. Pathologically, there were intima-media fibrosis, endothelial cell loss, and decreased expression of thrombomodulin in irradiated carotid artery stenosis. Our findings support the hypothesis that long-term radiation induced vascular injury in large arteries is morphologically different from atherosclerotic change. Furthermore, endothelial cell injury may promote fibrin thrombus formation through decreased expression of thrombomodulin, which may cause ischemic stroke associated with radiation-induced carotid artery stenosis. PMID- 29337049 TI - Sphingosine-1-Phosphate Receptor 1 Activation Enhances Leptomeningeal Collateral Development and Improves Outcome after Stroke in Mice. AB - BACKGROUND: Development of collateral circulation after acute ischemic stroke is triggered by shear stress that occurs in pre-existing arterioles. Recently, sphingosine-1-phosphate receptor 1 (S1P1) on endothelial cells was reported to sense shear stress and transduce its signaling pathways. METHODS: BALB/c mice (n = 118) were subjected to permanent middle cerebral artery occlusion (pMCAO) or sham operation. We investigated the effect of an S1P1-selective agonist SEW2871 on leptomeningeal collateral arteries and neurological outcome after pMCAO. RESULTS: Immunohistochemistry showed that without treatment, the expression of S1P1 on endothelial cells of leptomeningeal arteries and capillaries increased early after pMCAO, peaking at 6 hours, whereas a significant increase in the expression of S1P1 in neurons was seen from 24 hours later. After intraperitoneal administration of SEW2871 for 7 days after pMCAO, the number of leptomeningeal collateral arteries was significantly increased, cerebral blood flow improved, infarct volume was decreased, and neurological outcome improved compared with the controls. Significantly increased phosphorylation of endothelial nitric oxide synthase (eNOS) as early as 6 hours after pMCAO and higher expression of tight junction proteins at postoperative day 3 were observed with SEW2871 treatment as assessed by Western blot. Daily administration of SEW2871 also increased capillary density in peri-infarct regions and promoted monocyte/macrophage mobilization to the surface of ischemic cortex at 7 days after pMCAO. CONCLUSIONS: An S1P1-selective agonist enhanced leptomeningeal collateral circulation via eNOS phosphorylation and promoted postischemic angiogenesis with reinforced blood-brain barrier integrity in a mouse model of acute ischemic stroke, leading to smaller infarct volume and better neurological outcome. PMID- 29337050 TI - Impairments in social novelty recognition and spatial memory in mice with conditional deletion of Scn1a in parvalbumin-expressing cells. AB - Loss of function mutations in the SCN1A gene, which encodes the voltage-gated sodium channel Nav1.1, have been described in the majority of Dravet syndrome patients presenting with epileptic seizures, hyperactivity, autistic traits, and cognitive decline. We previously reported predominant Nav1.1 expression in parvalbumin-expressing (PV+) inhibitory neurons in juvenile mouse brain and observed epileptic seizures in mice with selective deletion of Scn1a in PV+ cells mediated by PV-Cre transgene expression (Scn1afl/+/PV-Cre-TG). Here we investigate the behavior of Scn1afl/+/PV-Cre-TG mice using a comprehensive battery of behavioral tests. We observed that Scn1afl/+/PV-Cre-TG mice display hyperactive behavior, impaired social novelty recognition, and altered spatial memory. We also generated Scn1afl/+/SST-Cre-KI mice with a selective Scn1a deletion in somatostatin-expressing (SST+) inhibitory neurons using an SST-IRES Cre knock-in driver line. We observed that Scn1afl/+/SST-Cre-KI mice display no spontaneous convulsive seizures and that Scn1afl/+/SST-Cre-KI mice have a lowered threshold temperature for hyperthermia-induced seizures, although their threshold values are much higher than those of Scn1afl/+/PV-Cre-TG mice. We finally show that Scn1afl/+/SST-Cre-KI mice exhibited no noticeable behavioral abnormalities. These observations suggest that impaired Nav1.1 function in PV+ interneurons is critically involved in the pathogenesis of hyperactivity, autistic traits, and cognitive decline, as well as epileptic seizures, in Dravet syndrome. PMID- 29337051 TI - FERMT2 links cortical actin structures, plasma membrane tension and focal adhesion function to stabilize podocyte morphology. AB - Simplification and retraction of podocyte protrusions, generally termed as foot process effacement, is a uniform pathological pattern observed in the majority of glomerular disease, including focal segmental glomerulosclerosis. However, it is still incompletely understood how the interaction of cortical actin structures, actomyosin contractility and focal adhesions, is being orchestrated to control foot process morphology in health and disease. By uncovering the functional role of fermitin family member 2 (FERMT2 or kindlin-2) in podocytes, we provide now evidence, how cell-extracellular matrix (ECM) interactions modulate membrane tension and actomyosin contractility. A genetic modeling approach was applied by deleting FERMT2 in a set of in vivo systems as well as in CRISPR/Cas9 modified human podocytes. Loss of FERMT2 results in altered cortical actin composition, cell cortex destabilization associated with plasma membrane blebbing and a remodeling of focal adhesions. We further show that FERMT2 knockout podocytes have high levels of RhoA activation and concomitantly increased actomyosin contractility. Inhibition of actomyosin tension reverses the membrane blebbing phenotype. Thus, our findings establish a direct link between cell-matrix adhesions, cortical actin structures and plasma membrane tension allowing to better explain cell morphological changes in foot process effacement. PMID- 29337052 TI - Sweet, yet underappreciated: Proteoglycans and extracellular matrix remodeling in heart disease. AB - Extracellular matrix remodeling is extensive in several heart diseases and hampers cardiac filling, often leading to heart failure. Proteoglycans have over the last two decades emerged as molecules with important roles in matrix remodeling and fibrosis in the heart. Here we discuss and review current literature on proteoglycans that have been studied in cardiac remodeling. The small leucine rich proteoglycans (SLRPs) are located within the extracellular matrix and are organizers of the matrix structure. Membrane-bound proteoglycans, such as syndecans and glypicans, act as receptors and direct cardiac fibroblast signaling. Recent studies indicate that proteoglycans are promising as diagnostic biomarkers for cardiac fibrosis, and that they may provide new therapeutic strategies for cardiac disease. PMID- 29337053 TI - Oral ingestion of plasmalogens can attenuate the LPS-induced memory loss and microglial activation. AB - Plasmalogens (Pls) are the special phospholipids which were reported to be reduced in brain and blood samples of Alzheimer's disease (AD) patients, suggested a possibility that an oral ingestion of Pls may prevent the disease progression. Interestingly, the clinical study showed that the daily oral ingestion of Pls among the mild AD patients improved cognition. However, it is unknown of whether the oral ingestion of Pls inhibits the AD like changes in brain e.g., glial activation and accumulation of amyloid beta (Abeta) proteins. To elucidate the beneficial effects of the Pls oral ingestion, we have used the chronic lipopolysaccharide (LPS) injection model mice where the glial activation and Abeta accumulation were well reported. In the present study, we have found that the Pls drinking at the doses of 0.1 MUg/ml and 10 MUg/ml for 3 months attenuated the glial activation and accumulation of amyloid beta (Abeta) proteins in the murine brain. Interestingly, the LPS injection reduced the hippocampal dependent memory in the control mice but the groups of Pls drinking mice showed a better performance in the memory test, suggesting that oral intake of Pls can inhibit LPS-mediated memory loss associated with a reduction of glial activation and Abeta accumulation in the brain. We, therefore, suggest that the oral ingestion of Pls among the AD patients may also inhibit the glial activation resulting in the improvement of cognition. PMID- 29337054 TI - Deficiency of primary cilia in kidney epithelial cells induces epithelial to mesenchymal transition. AB - Primary cilium is a microtubule-based non-motile organelle that plays critical roles in kidney pathophysiology. Our previous studies revealed that the lengths of primary cilia decreased upon renal ischemia/reperfusion injury and oxidative stress, and restored with recovery. Here, we tested the hypothesis that lack of primary cilium causes epithelial to mesenchymal transition (EMT) of kidney tubule cells. We investigated the alteration of length of primary cilia in TGF-beta induced EMT via visualization of primary cilia by fluorescence staining against acetylated alpha-tubulin. EMT was determined by measuring mesenchymal protein expression using quantitative PCR and indirect fluorescence staining. As a result, TGF-beta treatment decreased ciliary length along with EMT. To test whether defect of primary cilia trigger onset of EMT, cilia formation was disturbed by knock down of ciliary protein using siRNA along with/without TGF beta treatment. Knock down of Arl13b and Ift20 reduced cilia elongation and increased expression of EMT markers such as fibronectin, alpha-SMA, and collagen III. TGF-beta-induced EMT was greater as well in Arl13b and Ift20-knock down cells compared to control cells. Taken together, deficiency of primary cilia trigger EMT and exacerbates it under pro-fibrotic signals. PMID- 29337055 TI - A novel circular RNA, hsa_circ_0046701, promotes carcinogenesis by increasing the expression of miR-142-3p target ITGB8 in glioma. AB - In the present study, we identified a novel circular RNA (circRNA), hsa_circ_0046701, in glioma cells. We measured the expression of hsa_circ_0046701 using qRT-PCR in glioma tissues and cell lines, and explored its functions using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, colony formation, and Transwell assays. Luciferase reporter assays were performed to validate the correlation between microRNA miR-142-3p and hsa_circ_0046701 or integrin subunit beta 8 (ITGB8). The results showed that hsa_circ_0046701 was significantly upregulated in glioma tissues and cell lines, and knockdown of hsa_circ_0046701 inhibited cell proliferation and invasion. Luciferase reporter assays indicated that hsa_circ_0046701 functions as a sponge for miR-142-3p and regulates the expression of ITGB8. Subsequently, functional assays revealed that silencing of hsa_circ_0046701 could upregulate miR-142-3p, resulting in downregulation of ITGB8. The results demonstrated that the hsa_circ_0046701/miR-142-3p/ITGB8 axis might play critical regulatory roles in the pathogenesis and development of glioma. PMID- 29337056 TI - Comparison of EMT mediated tyrosine kinase inhibitor resistance in NSCLC. AB - In the United States, lung cancer is the second most common cancer in men and women. In 2017, 222,500 new cases and 155,870 deaths from lung cancer are estimated to have occurred. A tyrosine kinase receptor, epidermal growth factor receptor (EGFR), is over expressed or mutated in non-small cell lung cancer (NSCLC) resulting in increased cell proliferation and survival. Tyrosine kinase inhibitors (TKIs) are currently being used as therapy for NSCLC patients, however, they have limited efficacy in NSCLC patients due to acquisition of resistance. This study investigates the role of epithelial-mesenchymal transition (EMT) in the development of resistance against TKIs in NSCLC. Currently, the role of p120-catenin, Kaiso factor and PRMT-1 in reversal of EMT in T790M mutated and TKI-resistant NSCLC cells is a new line of study. In this investigation we found upregulation of cytoplasmic p120-catenin, which was co-localized with Kaiso factor. In the nucleus, binding of p120-catenin to Kaiso factor initiates transcription by activating EMT-transcription factors such as Snail, Slug, Twist, and ZEB1. PRMT-1 was also found to be upregulated, which induces methylation of Twist and repression of E-cadherin activity, thus promoting EMT. We confirmed that TKI-resistant cells have mesenchymal cell type characteristics based on their cell morphology and gene or protein expression of EMT related proteins. EMT proteins, Vimentin and N-cadherin, displayed increased expression, whereas E cadherin expression was downregulated. Finally, we found that the knockdown of p120-catenin and PRMT-1 by siRNA or use of a PRMT-1 inhibitor Furamidine increased Erlotinib sensitivity and could reverse EMT to overcome TKI resistance. PMID- 29337057 TI - Heterogeneity of autophagic status in pancreatic beta cells under metabolic stress. AB - Autophagy in beta cells has been demonstrated to play a pivotal role in cellular homeostasis and the progression of glucose intolerance. Although autophagic activity is affected by metabolic stress both in vivo and in vitro, it remains unclear as to what extent the autophagic status in each beta cell is different from its neighboring cells. To address this question, GFP-LC3 reporter mice, which can visualize the autophagic status of each beta cell as green-fluorescent puncta, were crossed with obese diabetic db/db mice. Imaging of green-fluorescent puncta in the islets of GFP-LC3 mice revealed that beta cells are a heterogeneous population, as the density of GFP-LC3 puncta in each cell was variable. Furthermore, the variability was greater in GFP-LC3; db/db mice than in non diabetic GFP-LC3; db/+ mice. Furthermore, when GFP-LC3 mice were treated with a low dose of S961, which antagonizes insulin signaling without inducing overt hyperglycemia, the number of beta cells with a high density of GFP puncta was increased, suggesting that insulin resistance affects autophagic status independently of glucose profiles. These results suggest that pancreatic beta cells under metabolic stress are heterogeneous regarding their autophagic status, which provides insights into the cellular dynamics of each beta cell rather than the whole beta-cell population. PMID- 29337058 TI - EHMT2 is a metastasis regulator in breast cancer. AB - Various modes of epigenetic regulation of breast cancer proliferation and metastasis have been investigated, but epigenetic mechanisms involved in breast cancer metastasis remain elusive. Thus, in this study, EHMT2 (a histone methyltransferase) was determined to be significantly overexpressed in breast cancer tissues and in Oncomine data. In addition, knockdown of EHMT2 reduced cell migration/invasion and regulated the expression of EMT-related markers (E cadherin, Claudin 1, and Vimentin). Furthermore, treatment with BIX-01294, a specific inhibitor of EHMT2, affected migration/invasion in MDA-MB-231 cells. Therefore, our findings demonstrate functions of EHMT2 in breast cancer metastasis and suggest that targeting EHMT2 may be an effective therapeutic strategy for preventing breast cancer metastasis. PMID- 29337059 TI - FPPS mediates TGF-beta1-induced non-small cell lung cancer cell invasion and the EMT process via the RhoA/Rock1 pathway. AB - Farnesyl pyrophosphate synthase (FPPS), a key enzyme in the mevalonate pathway, was recently shown to play a role in cancer progression. However, its role in non small cell lung cancer (NSCLC) metastasis and the underlying mechanism remain unclear. In this study, FPPS expression was significantly correlated with TNM stage, and metastasis. Inhibition or knockdown of FPPS blocked TGF-beta1-induced cell invasion and epithelial-to-mesenchymal transition (EMT) process. FPPS expression of FPPS was induced by TGF-beta1 and FPPS promoted cell invasion and EMT via the RhoA/Rock1 pathway. In conclusion, FPPS mediates TGF-beta1-induced lung cancer cell invasion and EMT via the RhoA/Rock1 pathway. These findings suggest new treatment strategies to reduce mortality associated with metastasis in patients with NSCLC. PMID- 29337060 TI - Amelogenin X impacts age-dependent increase of frequency and number in labial incisor grooves in C57BL/6. AB - Labial grooves in maxillary incisors have been reported in several wild-type rodent species. Previous studies have reported age-dependent labial grooves occur in moderate prevalence in C57BL/6 mice; however, very little is known about the occurrence of such grooves. In the present study, we observed age-dependent groove formation in C57BL/6 mice up to 26 months after birth and found that not only the frequency of the appearance of incisor grooves but also the number of grooves increased in an age-dependent manner. We examined the molecular mechanisms of age-dependent groove formation by performing DNA microarray analysis of the incisors of 12-month-old (12M) and 24-month-old (24M) mice. Amelx, encoding the major enamel matrix protein AMELOGENIN, was identified as a 12M-specific gene. Comparing with wild-type mice, the maxillary incisors of Amelx /- mutants indicated the increase of the frequency and number of labial grooves. These findings suggested that the Amelx gene impacts the age-dependent appearance of the labial incisor groove in C57BL/6 mice. PMID- 29337061 TI - Metabolic reprogramming in keloid fibroblasts: Aerobic glycolysis and a novel therapeutic strategy. AB - Keloids, tumor-like fibroproliferative cutaneous lesions, were reported in metabolic disturbance. However, the metabolic character remains unclear. The purpose of this study is to determine if glycolytic reprogramming is important for the pathogenesis of keloids and to assess the inhibition potential of glycolysis in keloid treatment. An intracellular metabolic profile assay was used to compare metabolic phenotypes between normal skin fibroblasts and keloid fibroblasts (NFs and KFs). Our data indicated that KFs underwent reprogramming of their metabolic phonotype from oxidative phosphorylation to aerobic glycolysis (Warburg effect) with augmented glycolysis and glycolytic capacity. Both gene and protein assays showed that the expression of glycolytic enzymes was upregulated in KFs compared to NFs. Our data showed higher glucose influx and lactate production in KFs compared to NFs. Furthermore, the proliferation of KFs was suppressed in a dose-dependent and time-dependent manner after inhibition of glycolysis with 2-deoxy-glucose (2-DG). Taken together, these findings suggested that keloids underwent a reprogrammed metabolic phenotype of aerobic glycolysis. This was essential for keloid hyperplasia, and glycolytic inhibitors might provide a potential treatment for keloids. PMID- 29337062 TI - Anti-inflammatory and proresolution activities of bergapten isolated from the roots of Ficus hirta in an in vivo zebrafish model. AB - Bergapten (5-methoxypsoralen), a coumarin-derivate compound isolated from Ficus hirta roots, was evaluated for its anti-inflammatory and proresolution activities in a tail-cutting-induced zebrafish larvae model. Bergapten was evaluated using a caudal fin-wounded transgenic zebrafish line "Tg(corola: eGFP)" to visualize the effects of the recruitment and clearance of neutrophils and macrophages at the injury site. We found that bergapten significantly suppressed the recruitment of neutrophils and macrophages toward the injury site, as well as promoted the clearance of neutrophils and macrophages from the wound site. We also investigated the reactive oxygen species (ROS) and nitric oxide (NO) level of bergapten in a tail-cutting-induced inflammation zebrafish model. The Results revealed that bergapten effectively inhibited the tail-cutting-induced production of ROS and NO in zebrafish larvae. This study reported for the first time the potential anti-inflammatory and proresolution activities of bergapten in an in vivo zebrafish model, suggesting that bergapten may be a potential candidate for inflammation therapy. PMID- 29337063 TI - BMI1 activates WNT signaling in colon cancer by negatively regulating the WNT antagonist IDAX. AB - Aberrant activation of Wnt signaling plays a critical role in the development of colon cancer. BMI, a component of the polycomb repressive complex (PRC1), is upregulated in various types of cancer and contributes to epigenetic silencing of tumor suppressors. In this study, we showed that BMI1 is upregulated in colon cancer tissues and cell lines. Overexpression of BMI1 in primary epithelial colon cells promotes cellular growth and activates WNT pathway, while BMI1 silencing in colon cancer cells represses these effects. We also found that BMI1 binds to the promoter of IDAX, a Wnt antagonist, and decreases its transcription. Expression of IDAX is downregulated in colon cancer tissues and cell lines and negatively correlated with BMI1 in colon cancer tissues. Furthermore, Silencing of IDAX counteracts the effects of BMI1 suppression, while its overexpression reverses oncogenic effects of BMI1. Together, these findings indicate that BMI1-mediated IDAX epigenetic suppression is crucial for enhancement of colon carcinogenesis, suggesting that BMI1?IDAX axis as a potential novel diagnostic and therapeutic target of colon cancer. PMID- 29337064 TI - Cloning and functional characterization of a p-coumaroyl quinate/shikimate 3' hydroxylase from potato (Solanum tuberosum). AB - Chlorogenic acid (CGA) plays an important role in protecting plants against pathogens and promoting human health. Although CGA accumulates to high levels in potato tubers, the key enzyme p-coumaroyl quinate/shikimate 3'-hydroxylase (C3'H) for CGA biosynthesis has not been isolated and functionally characterized in potato. In this work, we cloned StC3'H from potato and showed that it catalyzed the formation of caffeoylshikimate and CGA (caffeoylquinate) from p-coumaroyl shikimate and p-coumaroyl quinate, respectively, but was inactive towards p coumaric acid in in vitro enzyme assays. When the expression of StC3'H proteins was blocked through antisense (AS) inhibition under the control of a tuber specific patatin promoter, moderate changes in tuber yield as well as phenolic metabolites in the core tuber tissue were observed for several AS lines. On the other hand, the AS and control potato lines exhibited similar responses to a bacterial pathogen Pectobacterium carotovorum. These results suggest that StC3'H is implicated in phenolic metabolism in potato. They also suggest that CGA accumulation in the core tissue of potato tubers is an intricately controlled process and that additional C3'H activity may also be involved in CGA biosynthesis in potato. PMID- 29337065 TI - Downregulated circular RNA hsa_circ_0001649 regulates proliferation, migration and invasion in cholangiocarcinoma cells. AB - Cholangiocarcinoma (CCA) is one of the most aggressive malignancies with increasing worldwide incidence and is characterized by unfavorable prognosis due to its early invasive characteristics and poor response to chemotherapy or radiotherapy. Accumulating evidence has indicated that aberrantly expressed circular RNAs (circRNAs) are involved in cancer development and progression. However, their clinical values and biological roles in CCA remain unclear. Hsa_circ_0001649, a novel cancer-related circRNA, has been previously reported to be downregulated in hepatocellular carcinoma and gastric cancer. In the present study, qRT-PCR was carried out to measure the expression of hsa_circ_0001649 in CCA tissue samples and cell lines, and the correlation between hsa_circ_0001649 expression and clinicopathologic features was analyzed. The biological functions of hsa_circ_0001649 in CCA cells were evaluated both in vitro and in vivo. As a result, hsa_circ_0001649 was aberrantly downregulated in CCA tissues and cells, and this downregulation was associated with tumor size and differentiation grade in CCA. In addition, hsa_circ_0001649 overexpression caused tumor suppressive effects via inhibiting cell proliferation, migration and invasion; inducing cell apoptosis in KMBC and Huh-28 cells. On the contrary, silencing of hsa_circ_0001649 caused the opposite phenotypes. Furthermore, tumor xenograft study confirmed the in vitro results. Collectively, our findings suggest that hsa_circ_0001649 might be a rational CCA-related therapeutic target. PMID- 29337066 TI - Listeria monocytogenes endocarditis: case report, review of the literature, and laboratory evaluation of potential novel antibiotic synergies. AB - Endocarditis is a rare but serious manifestation of Listeria monocytogenes (LM). However, the optimal treatment strategy for LM endocarditis has yet to be established. Current antibiotic strategies for listeriosis include penicillin G or ampicillin (AMP) monotherapy, or AMP + gentamicin combination therapy which is often favored for endocarditis. The primary objective of our investigation was to assess the utility of AMP + ceftriaxone (CRO) and AMP + daptomycin (DAP) against LM, modeling less nephrotoxic antibiotic combinations traditionally used to manage resistant enterococcal endocarditis. Here we report a case of LM endocarditis, review the world literature, and evaluate alternative treatment strategies for listeriosis utilizing in vitro and ex vivo studies. The combination of AMP + CRO and AMP + DAP were each noted to have synergistic activity against a LM endocarditis isolate. Additionally, co-incubation of the isolate with sub-lethal concentrations of antibiotics (AMP, CRO, DAP, AMP + CRO or AMP + DAP) sensitized the bacterium to whole blood killing while pretreatment with CRO and DAP (at 1/4 MIC) sensitized the bacterium to neutrophil killing. However, these effects did not reflect potentiation of antibiotic activity to human cathelicidin peptide LL-37, which is abundant in neutrophils and highly active against LM. Interestingly, AMP pretreatment of the LM endocarditis isolate resulted in increased DAP binding to the bacterium when assessed by fluorescence microscopy. These in vitro and ex vivo studies suggest further investigation of combination therapy using AMP + CRO or AMP + DAP as an alternative treatment for LM infection is warranted. PMID- 29337067 TI - The impact of growth factors on human induced pluripotent stem cells differentiation into cardiomyocytes. AB - : Human induced pluripotent stem cells (hiPSCs) act as a promising therapeutic alternative for cardiovascular diseases. They yield a large number of functional cardiomyocytes (CMs) from autologous cell sources without ethical or immunological problems. However, significant limitations still remain in terms of line-to-line variability in CM yield and reproducibility. AIM: To efficiently enhance NP0040 hiPSCs differentiation into CMs. MAIN METHODS: Following a standard cardiac differentiation protocol using small molecules targeting the canonical Wnt signaling, growth factors (BMP4 and FGF2) and ascorbic acid were added further in order to increase the cardiac differentiation efficiency. All cultures were conducted in serum-free, feeder-free monolayer system followed by lactate purification. KEY FINDINGS: Using NP0040 hiPSCs, the CM yield resulting from modulation of the Wnt signaling pathway alone was inefficient compared to previous studies while the addition of BMP4, FGF2 and ascorbic acid resulted in enhanced cardiac differentiation outcome. The later resulted in a high yield (up to 92%) of cardiac troponin-T (cTnT) + CMs contracting spontaneously as organized sheets in 15 independent experiments. They were validated structurally and functionally using immunofluorescent staining for sarcomeric alpha-actinin, cTnT, MLC2v and Connexin 43. Reverse-transcriptase PCR revealed cardiac transcription factors and cardiac-specific genes expression. CMs were electrically connected to one another. Recorded action potential (AP) showed waves of relatively mature ventricular-like phenotype. SIGNIFICANCE: We demonstrated that hiPSC lines respond differently to a standard cardiac differentiation protocol and that a well-orchestrated interplay between Wnt, BMP4, FGF/MEK and Ascorbic acid MEK/ERK1/2 signaling pathways is beneficial in enhancing the differentiation outcome. PMID- 29337068 TI - The impact of compression force and pressure at prevalent screening on subsequent re-attendance in a national screening program. AB - Adherence to screening may indirectly help assess whether a prior screening examination deters women from returning for a subsequent examination. We investigated whether compression force and pressure in mammography were associated with re-attendance among prevalently screened women in the organized breast cancer screening program in Norway. Data on compression force (kg) and pressure (kPa) from women's first screening examination in the program (prevalent screening) and subsequent re-attendance were available for 31,225 women aged 50 68, screened during 2007-2013. Crude re-attendance rates and log-binomial regression models estimating the prevalence ratio of re-attendance were used to identify the association between compression force or pressure and re-attendance two-years later. Age and year at prevalent screening, county of residence, screening result (negative or false positive), breast volume, and breast density were included in analyses. Overall, 27,197 (87.1%) women re-attended the program. Re-attendance was highest for women who received a compression force of 10.0-13.9 kg (87.5%) or pressure of 9.0-17.9 kPa (87.8%) and lowest for those who received a compression force of <10.0 kg (85.0%) or pressure of <9.0 kPa (84.7%). The adjusted prevalence of re-attendance was 3% lower for women who received low compression force (<10.0 kg) and 2% lower for women who received low compression pressure (<9.0 kPa) relative to the reference groups (10.0-13.9 kg and 9.0-17.9 kPa, respectively). Future research related to re-attendance should also include information about women's experience of pain, anxiety and stress, as well as image quality. PMID- 29337069 TI - A survey instrument for measuring vaccine acceptance. AB - Accurately measuring vaccine acceptance is important, especially under current conditions in which misinformation may increase public anxiety about vaccines and politicize vaccination policies. We integrated substantive knowledge, conceptualization and measurement expertise, and survey design principles to develop an instrument for measuring vaccine acceptance across the general public. Given this broad goal, we expect our novel instrument will complement, rather than replace, existing instruments designed specifically to measure parents' vaccine hesitancy. Our instrument measures five key facets of vaccine acceptance: (1) perceived safety of vaccines; (2) perceived effectiveness and necessity of vaccines; (3) acceptance of the selection and scheduling of vaccines; (4) positive values and affect toward vaccines; and (5) perceived legitimacy of authorities to require vaccinations. We report results of analyses demonstrating the reliability and validity of this instrument. High Cronbach's alpha values for five sub-scales and for the full scale indicate the instrument's reliability, and the consistent performance of expected predictors (i.e., trust in biologists, conspiratorial ideation, and political ideology) demonstrates the instrument's construct validity. Further, scientific reasoning increases vaccine acceptance among liberals but decreases vaccine acceptance among conservatives, which is consistent with motivated cognition. Also, trust in biologists has a stronger positive effect on vaccine acceptance among conservatives than among liberals, signaling a potentially promising means to reduce political polarization on vaccines and increase vaccine acceptance across the general public. We end by identifying key ways that public health researchers, science studies scholars, and health practitioners may employ the full (or short) version of our vaccine acceptance instrument. PMID- 29337070 TI - Intrinsic and extrinsic contributors to defective CD8+ T cell responses with aging. AB - Aging has a profound effect on the immune system, and both innate and adaptive arms of the immune system show functional decline with age. In response to infection with intracellular microorganisms, old animals mobilize decreased numbers of antigen-specific CD8+ T cells with reduced production of effector molecules and impaired cytolytic activity. However, the CD8+ T cell-intrinsic contribution to, and molecular mechanisms behind, these defects remain unclear. In this review we will discuss the mechanistic contributions of age related changes in the CD8+ T cell pool and the relative roles of intrinsic functional defects in aged CD8+ T cells vs. defects in the aged environment initiating the CD8+ T cell response. PMID- 29337071 TI - Lower protein and higher carbohydrate intake are related with altering metabolic syndrome components in elderly women: A cross-sectional study. AB - BACKGROUND: Metabolic Syndrome (MetS) is an energy-disturbance disease associated with insulin resistance. Hence, the intake of energy-rich macronutrients might affect some MetS components. The aim of this study was to explore the association of ingested macronutrients with MetS components in older women. METHODS: A cross sectional study was conducted in 245 older women (>=60 years). Whole-body dual energy X-ray absorptiometry was used to assess total body fat, percentage body fat (absolute and relative), and skeletal muscle mass. Venous blood samples were collected after a 12 h fasting to determine glucose, high-density lipoprotein (HDL-c), and triglycerides. Anthropometric measurements and resting blood pressure were also evaluated. Food consumption was assessed through the 24-hour dietary recall method, and the macronutrients were distributed by tertiles of consumption. The Student t-test, Mann-Whitney U test, and logistic regression analysis were used for statistical analysis. RESULTS: The MetS and non-MetS groups demonstrated similar food-energy intake and fat consumption. The MetS group presented lower protein and higher carbohydrate intake than the non-MetS group. Individuals in the lowest protein intake (<0.72 g/kg/d) had greater odds of presenting abdominal obesity and impaired glucose levels. Higher consumption of carbohydrates was associated with lower HDL levels and higher hypertriglyceridemia. The chances of having MetS were increased by three times when ingesting either a low protein or high carbohydrate diet. CONCLUSION: Either high carbohydrate or low protein intake would be risk factors for altering MetS components and the presence of MetS in elderly women. PMID- 29337072 TI - Valorization of Brewer's spent grain to prebiotic oligosaccharide: Production, xylanase catalyzed hydrolysis, in-vitro evaluation with probiotic strains and in a batch human fecal fermentation model. AB - Brewer's spent grain (BSG) accounts for around 85% of the solid by-products from beer production. BSG was first extracted to obtain water-soluble arabinoxylan (AX). Using subsequent alkali extraction (0.5 M KOH) it was possible to dissolve additional AX. In total, about 57% of the AX in BSG was extracted with the purity of 45-55%. After comparison of nine xylanases, Pentopan mono BG, a GH11 enzyme, was selected for hydrolysis of the extracts to oligosaccharides with minimal formation of monosaccharides. Growth of Bifidobacterium adolescentis (ATCC 15703) was promoted by the enzymatic hydrolysis to arabinoxylooligosaccharides, while Lactobacillus brevis (DSMZ 1264) utilized only unsubstituted xylooligosaccharides. Furthermore, utilization of the hydrolysates by human gut microbiota was also assessed in a batch human fecal fermentation model. Results revealed that the rates of fermentation of the BSG hydrolysates by human gut microbiota were similar to that of commercial prebiotic fructooligosaccharides, while inulin was fermented at a slower rate. In summary, a sustainable process to valorize BSG to functional food ingredients has been proposed. PMID- 29337073 TI - Neofunctionalization of Duplicated P450 Genes Drives the Evolution of Insecticide Resistance in the Brown Planthopper. AB - Gene duplication is a major source of genetic variation that has been shown to underpin the evolution of a wide range of adaptive traits [1, 2]. For example, duplication or amplification of genes encoding detoxification enzymes has been shown to play an important role in the evolution of insecticide resistance [3-5]. In this context, gene duplication performs an adaptive function as a result of its effects on gene dosage and not as a source of functional novelty [3, 6-8]. Here, we show that duplication and neofunctionalization of a cytochrome P450, CYP6ER1, led to the evolution of insecticide resistance in the brown planthopper. Considerable genetic variation was observed in the coding sequence of CYP6ER1 in populations of brown planthopper collected from across Asia, but just two sequence variants are highly overexpressed in resistant strains and metabolize imidacloprid. Both variants are characterized by profound amino-acid alterations in substrate recognition sites, and the introduction of these mutations into a susceptible P450 sequence is sufficient to confer resistance. CYP6ER1 is duplicated in resistant strains with individuals carrying paralogs with and without the gain-of-function mutations. Despite numerical parity in the genome, the susceptible and mutant copies exhibit marked asymmetry in their expression with the resistant paralogs overexpressed. In the primary resistance-conferring CYP6ER1 variant, this results from an extended region of novel sequence upstream of the gene that provides enhanced expression. Our findings illustrate the versatility of gene duplication in providing opportunities for functional and regulatory innovation during the evolution of an adaptive trait. PMID- 29337074 TI - In Situ Clock Shift Reveals that the Sun Compass Contributes to Orientation in a Pelagic Seabird. AB - Compass orientation is central to the control of animal movement from the scale of local food-caching movements around a familiar area in parids [1] and corvids [2, 3] to the first autumn vector navigation of songbirds embarking on long distance migration [4-6]. In the study of diurnal birds, where the homing pigeon, Columba livia, has been the main model, a time-compensated sun compass [7] is central to the two-step map-and-compass process of navigation from unfamiliar places, as well as guiding movement via a representation of familiar area landmarks [8-12]. However, its use by an actively navigating wild bird is yet to be shown. By phase shifting an animal's endogenous clock, known as clock-shifting [13-15], sun-compass use can be demonstrated when the animal incorrectly consults the sun's azimuthal position while homing after experimental displacement [15 17]. By applying clock-shift techniques at the nest of a wild bird during natural incubation, we show here that an oceanic navigator-the Manx shearwater, Puffinus puffinus-incorporates information from a time-compensated sun compass during homeward guidance to the breeding colony after displacement. Consistently with homing pigeons navigating within their familiar area [8, 9, 11, 18], we find that the effect of clock shift, while statistically robust, is partial in nature, possibly indicating the incorporation of guidance from landmarks into movement decisions. PMID- 29337075 TI - Brassinosteroids Dominate Hormonal Regulation of Plant Thermomorphogenesis via BZR1. AB - Thermomorphogenesis is defined as the suite of morphological changes that together are likely to contribute to adaptive growth acclimation to usually elevated ambient temperature [1, 2]. While many details of warmth-induced signal transduction are still elusive, parallels to light signaling recently became obvious (reviewed in [3]). It involves photoreceptors that can also sense changes in ambient temperature [3-5] and act, for example, by repressing protein activity of the central integrator of temperature information PHYTOCHROME-INTERACTING FACTOR 4 (PIF4 [6]). In addition, PIF4 transcript accumulation is tightly controlled by the evening complex member EARLY FLOWERING 3 [7, 8]. According to the current understanding, PIF4 activates growth-promoting genes directly but also via inducing auxin biosynthesis and signaling, resulting in cell elongation. Based on a mutagenesis screen in the model plant Arabidopsis thaliana for mutants with defects in temperature-induced hypocotyl elongation, we show here that both PIF4 and auxin function depend on brassinosteroids. Genetic and pharmacological analyses place brassinosteroids downstream of PIF4 and auxin. We found that brassinosteroids act via the transcription factor BRASSINAZOLE RESISTANT 1 (BZR1), which accumulates in the nucleus at high temperature, where it induces expression of growth-promoting genes. Furthermore, we show that at elevated temperature BZR1 binds to the promoter of PIF4, inducing its expression. These findings suggest that BZR1 functions in an amplifying feedforward loop involved in PIF4 activation. Although numerous negative regulators of PIF4 have been described, we identify BZR1 here as a true temperature-dependent positive regulator of PIF4, acting as a major growth coordinator. PMID- 29337077 TI - Chimeric Synergy in Natural Social Groups of a Cooperative Microbe. AB - Many cooperative species form internally diverse social groups in which individual fitness depends significantly on group-level productivity from cooperation [1-4]. For such species, selection is expected to often disfavor within-group diversity that reduces cooperative productivity [5, 6]. While diversity within social groups is known to enhance productivity in some animals [7-9], diversity within natural groups of social microbes is largely unexamined in this regard. Cells of the soil bacterium Myxococcus xanthus respond to starvation by constructing multicellular fruiting bodies within each of which a subpopulation of cells transforms into stress-resistant spores [10]. Fruiting bodies isolated from soil often harbor substantial endemic diversity [11] that is, nonetheless, lower than between-group diversity, which increases with distance from millimeter to global scales [12-14]. We show that M. xanthus clones isolated from the same fruiting body often collectively produce more viable spores in chimeric groups than expected from sporulation in genetically homogeneous groups. In contrast, chimerism among clones derived from different fruiting bodies tends to reduce group productivity, and it does so increasingly as a function of spatial distance between fruiting-body sample sites. For one fruiting body examined in detail, chimeric synergy-a positive quantitative effect of chimerism on group productivity-is distributed broadly across an interaction network rather than limited to a few interactions. We propose that these results strengthen the plausibility of the hypothesis that selection may operate not only within Myxococcus groups, but also between kin groups to disfavor within-group variation that reduces productivity while allowing some forms of diversity that generate chimeric synergy to persist. PMID- 29337076 TI - Opposing Kinesin and Myosin-I Motors Drive Membrane Deformation and Tubulation along Engineered Cytoskeletal Networks. AB - Microtubule and actin filament molecular motors such as kinesin-1 and myosin-Ic (Myo1c) transport and remodel membrane-bound vesicles; however, it is unclear how they coordinate to accomplish these tasks. We introduced kinesin-1- and Myo1c bound giant unilamellar vesicles (GUVs) into a micropatterned in vitro cytoskeletal matrix modeled after the subcellular architecture where vesicular sorting and membrane remodeling are observed. This array was composed of sparse microtubules intersecting regions dense with actin filaments, and revealed that Myo1c-dependent tethering of GUVs enabled kinesin-1-driven membrane deformation and tubulation. Membrane remodeling at actin/microtubule intersections was modulated by lipid composition and the addition of the Bin-Amphiphysin-Rvs-domain (BAR-domain) proteins endophilin or FCH-domain-only (FCHo). Myo1c not only tethered microtubule-transported cargo, but also transported, deformed, and tubulated GUVs along actin filaments in a lipid-composition- and BAR-protein responsive manner. These results suggest a mechanism for actin-based involvement in vesicular transport and remodeling of intracellular membranes, and implicate lipid composition as a key factor in determining whether vesicles will undergo transport, deformation, or tubulation driven by opposing actin and microtubule motors and BAR-domain proteins. PMID- 29337078 TI - Circadian Waves of Transcriptional Repression Shape PIF-Regulated Photoperiod Responsive Growth in Arabidopsis. AB - Plants coordinate their growth and development with the environment through integration of circadian clock and photosensory pathways. In Arabidopsis thaliana, rhythmic hypocotyl elongation in short days (SD) is enhanced at dawn by the basic-helix-loop-helix (bHLH) transcription factors PHYTOCHROME-INTERACTING FACTORS (PIFs) directly inducing expression of growth-related genes [1-6]. PIFs accumulate progressively during the night and are targeted for degradation by active phytochromes in the light, when growth is reduced. Although PIF proteins are also detected during the day hours [7-10], their growth-promoting activity is inhibited through unknown mechanisms. Recently, the core clock components and transcriptional repressors PSEUDO-RESPONSE REGULATORS PRR9/7/5 [11, 12], negative regulators of hypocotyl elongation [13, 14], were described to associate to G boxes [15], the DNA motifs recognized by the PIFs [16, 17], suggesting that PRR and PIF function might converge antagonistically to regulate growth. Here we report that PRR9/7/5 and PIFs physically interact and bind to the same promoter region of pre-dawn-phased, growth-related genes, and we identify the transcription factor CDF5 [18, 19] as target of this interplay. In SD, CDF5 expression is sequentially repressed from morning to dusk by PRRs and induced pre dawn by PIFs. Consequently, CDF5 accumulates specifically at dawn, when it induces cell elongation. Our findings provide a framework for recent TIMING OF CAB EXPRESSION 1 (TOC1/PRR1) data [5, 20] and reveal that the long described circadian morning-to-midnight waves of the PRR transcriptional repressors (PRR9, PRR7, PRR5, and TOC1) [21] jointly gate PIF activity to dawn to prevent overgrowth through sequential regulation of common PIF-PRR target genes such as CDF5. PMID- 29337079 TI - Rising pCO2 in Freshwater Ecosystems Has the Potential to Negatively Affect Predator-Induced Defenses in Daphnia. AB - Anthropogenically released CO2 accumulates in the global carbon cycle and is anticipated to imbalance global carbon fluxes [1]. For example, increased atmospheric CO2 induces a net air-to-sea flux where the oceans take up large amounts of atmospheric CO2 (i.e., ocean acidification [2-5]). Research on ocean acidification is ongoing, and studies have demonstrated the consequences for ecosystems and organismal biology with major impacts on marine food webs, nutrient cycles, overall productivity, and biodiversity [6-9]. Yet, surprisingly little is known about the impact of anthropogenically caused CO2 on freshwater systems due to their more complex biogeochemistry. The current consensus, yet lacking data evidence, is that anthropogenic CO2 does indeed affect freshwater carbon hydrogeochemistry, causing increased pCO2 in freshwater bodies [10-13]. We analyzed long-term data from four freshwater reservoirs and observed a continuous pCO2 increase associated with a decrease in pH, indicating that not only the oceans but also inland waters are accumulating CO2. We tested the effect of pCO2 dependent freshwater acidification using the cosmopolite crustacean Daphnia. For general validity, control pCO2-levels were based on the present global pCO2 average. Treatments were selected with very high pCO2 levels, assuming a continuous non-linear increase of pCO2, reflecting worst-case-scenario future pCO2 levels. Such levels of elevated pCO2 reduced the ability of Daphnia to sense its predators and form adequate inducible defenses. We furthermore determined that pCO2 and not the resulting reduction in pH impairs predator perception. If pCO2 alters chemical communication between freshwater species, this perturbs intra- and interspecific information transfer, which may affect all trophic levels. PMID- 29337080 TI - SMC1alpha Substitutes for Many Meiotic Functions of SMC1beta but Cannot Protect Telomeres from Damage. AB - The cohesin complex is built upon the SMC1/SMC3 heterodimer, and mammalian meiocytes feature two variants of SMC1 named SMC1alpha and SMC1beta. It is unclear why these two SMC1 variants have evolved. To determine unique versus redundant functions of SMC1beta, we asked which of the known functions of SMC1beta can be fulfilled by SMC1alpha. Smc1alpha was expressed under control of the Smc1beta promoter in either wild-type or SMC1beta-deficient mice. No effect was seen in the former. However, several major phenotypes of SMC1beta-deficient spermatocytes were rescued by SMC1alpha. We observed extended development before apoptosis and restoration of axial element and synaptonemal complex lengths, chromosome synapsis, sex body formation, processing of DNA double-strand breaks, and formation of MLH1 recombination foci. This supports the concept that the quantity rather than the specific quality of cohesin complexes is decisive for meiotic chromosome architecture. It also suggests plasticity in complex composition, because to replace SMC1beta in many functions, SMC1alpha has to more extensively associate with other cohesins. The cells did not complete meiosis but died to the latest at the pachytene-to-diplotene transition. Telomere aberrations known from Smc1beta-/- mice persisted, and DNA damage response and repair proteins accumulated there regardless of expression of SMC1alpha. Thus, whereas SMC1alpha can substitute for SMC1beta in many functions, the protection of telomere integrity requires SMC1beta. PMID- 29337081 TI - Abolishment of Spontaneous Flight Turns in Visually Responsive Drosophila. AB - Animals react rapidly to external stimuli, such as an approaching predator, but in other circumstances, they seem to act spontaneously, without any obvious external trigger. How do the neural processes mediating the execution of reflexive and spontaneous actions differ? We studied this question in tethered, flying Drosophila. We found that silencing a large but genetically defined set of non-motor neurons virtually eliminates spontaneous flight turns while preserving the tethered flies' ability to perform two types of visually evoked turns, demonstrating that, at least in flies, these two modes of action are almost completely dissociable. PMID- 29337082 TI - Serum lactate dehydrogenase isoenzymes 4 plus 5 is a better biomarker than total lactate dehydrogenase for refractory Mycoplasma pneumoniae pneumonia in children. AB - Although usually self-limiting, Mycoplasma pneumoniae pneumonia (MPP) may lead to clinical or radiological deterioration despite macrolide antibiotic therapy, resulting in the development of refractory MPP (RMPP). Corticosteroids have been used to treat RMPP with beneficial effects. Serum lactate dehydrogenase (LDH) is a suggested biomarker for the use of steroid therapy. Since serum LDH is a non specific marker and elevated in many inflammatory processes, this study investigates the predicting level of LDH isoenzymes for RMPP. Fifty-four children with non-refractory M. pneumoniae pneumonia (NRMPP) and 16 children with RMPP were enrolled in this study. In comparison to the NRMPP group, the RMPP group showed significantly higher levels of serum LDH. Concerning LDH isoenzymes, the RMPP group showed significantly lower proportions of LDH1 and LDH2, while higher LDH4 and LDH5 percentage. Receiver operating characteristic curve analysis showed that the area under the curve for the total LDH data was 0.812 with a cut-off of 408 IU/L (sensitivity of 75.0%, specificity of 72.2%). The areas under the curve for LDH4, LDH5, and [LDH4 + LDH5] were estimated to be 0.813, 0.818, and 0.829, respectively. The threshold for [LDH4 + LDH5] was estimated to be 109.4 IU/L (sensitivity, 75.0%; specificity, 87.0%). These results indicate that for the initiation of corticosteroid therapy, serum [LDH4 + LDH5] level is a more sensitive biomarker than total LDH. PMID- 29337083 TI - Palmitoylethanolamide attenuates cocaine-induced behavioral sensitization and conditioned place preference in mice. AB - Cocaine addiction is a chronically relapsing disorder characterized by compulsive drug-seeking and drug-taking behaviors. Previous studies have demonstrated that cocaine, as well as other drugs of abuse, alters the levels of lipid-based signaling molecules, such as N-acylethanolamines (NAEs). Moreover, brain levels of NAEs have shown sensitivity to cocaine self-administration and extinction training in rodents. Given this background, the aim of this study was to investigate the effects of repeated or acute administration of palmitoylethanolamide (PEA), an endogenous NAE, on psychomotor sensitization and cocaine-induced contextual conditioning. To this end, the potential ability of repeated PEA administration (1 or 10 mg/kg, i.p.) to modulate the acquisition of cocaine-induced behavioral sensitization (BS) and conditioned place preference (CPP) was assessed in male C57BL/6J mice. In addition, the expression of cocaine induced BS and CPP following acute PEA administration were also studied. Results showed that repeated administration of both doses of PEA were able to block the acquisition of cocaine-induced BS. Furthermore, acute administration of both doses of PEA was able to abolish the expression of BS, while the highest dose also abolished the expression of cocaine-induced CPP. Taken together, these results indicate that exogenous administration of PEA attenuated psychomotor sensitization, while the effect of PEA in cocaine-induced CPP depended on whether PEA was administered repeatedly or acutely. These findings could be relevant to understand the role that NAEs play in processes underlying the development and maintenance of cocaine addiction. PMID- 29337084 TI - A graph-based approach to analyze flux-balanced pathways in metabolic networks. AB - An elementary flux mode (EFM) is a pathway with minimum set of reactions that are functional in steady-state constrained space. Due to the high computational complexity of calculating EFMs, different approaches have been proposed to find these flux-balanced pathways. In this paper, an approach to find a subset of EFMs is proposed based on a graph data model. The given metabolic network is mapped to the graph model and decisions for reaction inclusion can be made based on metabolites and their associated reactions. This notion makes the approach more convenient to categorize the output pathways. Implications of the proposed method on metabolic networks are discussed. PMID- 29337085 TI - DISC: Describing Infections of the Spine treated with Ceftaroline. AB - OBJECTIVES: Infections of the spine lead to considerable morbidity and a high cost to the global healthcare system. Currently, evidence for using ceftaroline, an advanced-generation cephalosporin active against methicillin-resistant Staphylococcus aureus (MRSA), in spine infections is limited. METHODS: Describing Infections of the Spine treated with Ceftaroline (DISC) is a multicentre, retrospective, cohort study that evaluated ceftaroline for treating spine infections. Patients were included if they were aged >=18 years, diagnosed with a spine infection and treated with ceftaroline for >=28 days. A control group was identified with the same inclusion criteria as the study population except they were treated with a comparator antibiotic for >=28 days. RESULTS: Thirty-seven patients were included each in the ceftaroline and control groups. MRSA was the most commonly identified pathogen. With no differences between groups in age, sex, race or co-morbidities (with the exception of chronic kidney disease), treatment with ceftaroline led to similar clinical success compared with the control group. Multivariate regression analysis did not show a significant difference between the two groups in terms of clinical success after controlling for other covariates (adjusted odds ratio=1.49; P=0.711). More patients who received ceftaroline were discharged to an extended-care or rehabilitation facility than home compared with controls (81% vs. 54%, respectively; P=0.024). Side effects and toxicities were rare, including one case of eosinophilic pneumonia in the ceftaroline group. CONCLUSIONS: Ceftaroline appears to be a safe and effective therapy for infections of the spine, including from MRSA. PMID- 29337086 TI - Incidental Pulmonary Nodules Are Common on CT Coronary Angiogram and Have a Significant Cost Impact. AB - BACKGROUND: Computed tomography (CT) coronary angiogram (CTCA) is commonly used for diagnostic evaluation of low-moderate risk patients due to its excellent performance and cost-effectiveness. However, previous cost analyses have not factored in the burden of management of pulmonary nodules, which are a common occurrence. We sought to describe the frequency and characteristics of lung nodules on CTCA in an Australian tertiary hospital, and to assess cost impacts. METHODS: Consecutive CTCAs performed in the calendar year 2012 were retrospectively identified from the imaging department database. Subjects were excluded if they were under the age of 35, had known malignancy or findings identified prior to CTCA. Patients were stratified on smoking history and nodule size. RESULTS: Of the 2479 CTCAs included, full-field imaging revealed nodules in 358 patients (13.9%). The nodules were generally small (73% <6mm), multiple (63%) and in the lower lobe (83.4%). There was no significant difference when stratified for smoking, with 60% of nodules detected in never-smokers. A minimum of 445 subsequent scans was required for nodule surveillance, resulting in an additional overall cost of $63.62 per CTCA. Limited-Field-of-View (L-FOV) would have identified only 22 nodules, with a cost of $6.14 for every CTCA performed, a cost saving of $57 per patient. CONCLUSIONS: Indeterminate pulmonary nodules are a common incidental finding on CTCA and prevalence appears to be independent of smoking status. There is a consequent significant cost burden that has not previously been recognised. Use of L-FOV reduces the number of nodules identified, with a significant cost benefit, but this has to be balanced against the ethical and medico-legal issues inherent in not reconstructing the irradiated lung. PMID- 29337087 TI - Genetic polymorphisms of pharmacogenomic VIP variants in the Yi population from China. AB - INTRODUCTION: Drug response and target therapeutic dosage are different among individuals. The variability is largely genetically determined. With the development of pharmacogenetics and pharmacogenomics, widespread research have provided us a wealth of information on drug-related genetic polymorphisms, and the very important pharmacogenetic (VIP) variants have been identified for the major populations around the world whereas less is known regarding minorities in China, including the Yi ethnic group. Our research aims to screen the potential genetic variants in Yi population on pharmacogenomics and provide a theoretical basis for future medication guidance. MATERIALS AND METHODS: In the present study, 80 VIP variants (selected from the PharmGKB database) were genotyped in 100 unrelated and healthy Yi adults recruited for our research. Through statistical analysis, we made a comparison between the Yi and other 11 populations listed in the HapMap database for significant SNPs detection. Two specific SNPs were subsequently enrolled in an observation on global allele distribution with the frequencies downloaded from ALlele FREquency Database. Moreover, F-statistics (Fst), genetic structure and phylogenetic tree analyses were conducted for determination of genetic similarity between the 12 ethnic groups. RESULTS: Using the chi2 tests, rs1128503 (ABCB1), rs7294 (VKORC1), rs9934438 (VKORC1), rs1540339 (VDR) and rs689466 (PTGS2) were identified as the significantly different loci for further analysis. The global allele distribution revealed that the allele "A" of rs1540339 and rs9934438 were more frequent in Yi people, which was consistent with the most populations in East Asia. F-statistics (Fst), genetic structure and phylogenetic tree analyses demonstrated that the Yi and CHD shared a closest relationship on their genetic backgrounds. Additionally, Yi was considered similar to the Han people from Shaanxi province among the domestic ethnic populations in China. CONCLUSIONS: Our results demonstrated significant differences on several polymorphic SNPs and supplement the pharmacogenomic information for the Yi population, which could provide new strategies for optimizing clinical medication in accordance with the genetic determinants of drug toxicity and efficacy. PMID- 29337088 TI - Cross-regulatory network in Pseudomonas aeruginosa biofilm genes and TiO2 anatase induced molecular perturbations in key proteins unraveled by a systems biology approach. AB - A systems biology approach was used to study all the biofilm related genes of P. aeruginosa PAO1, and the interaction of titanium dioxide (TiO2) anatase with biofilm related proteins. Among the 71 genes, the interactions of all the nodal pairs were extracted by STRING 10.5 database. The inter-relationship among these genes was predicted by constructing complete PPI network and visualized in Cytoscape v 3.4.0. Total number of nodes of the network was found to be 335 and edges were 795. The network was further investigated for its clusters and the best cluster was further analyzed for the hub proteins which significantly contribute in cross-regulation of the biofilm related process. The hub proteins were identified based on four topological parameters of degree, closeness, betweeness and radiality. Four major hub proteins of P. aeruginosa PAO1 were identified to be algD, gacS, rpoS and rpoN which were common in all the hubs. Further, we have also elucidated the probable mechanism of TiO2 interaction with P. aeruginosa PAO1 at molecular level. Using STITCH server, the major target gene of TiO2 was identified as katA which also appeared commonly in our main dataset and this gene has been focused for the further study because of its unique common appearance in gene-gene network as well as gene-anatase network. The direct interacting partners of katA were found to be dnaK, hfq, rpoS and rpoA. Based on these findings and available gene regulatory information, probable TiO2 interacting cascade has been represented. This in silico study of P. aeruginosa PAO1 biofilm genes and the interaction of protein products with TiO2 might be significant to understand the perspective pathogenic resistance as well as the toxicity research pertaining to nanoparticles. PMID- 29337089 TI - Thermal Field Distributions of Ablative Experiments Using Cyst-mimicking Phantoms: Comparison of Microwave and Radiofrequency Ablation. AB - RATIONALE AND OBJECTIVES: The objective of this study was to explore the thermal field distribution of cystic lesions undergoing microwave ablation (MWA) and radiofrequency ablation (RFA) using in vitro phantoms. MATERIALS AND METHODS: Cyst-mimicking lesions filled with sodium chloride (NaCl) solution in acrylamide phantoms were treated with MWA and RFA in vitro. The radiofrequency electrodes or MWA antennas were implanted in the centers of the artificial cystic lesions. We used temperature fields located 5, 15, and 25 mm from the electrode or the antenna to plot the temperature-rise curves. Solid phantoms without cysts were also fabricated as controls. RESULTS: The temperature within cysts increased faster and reached a higher maximum temperature during MWA than during RFA, and this result was independent of the NaCl solution concentration. RFA treatment caused the temperatures within the lesion to increase significantly faster in the cysts containing 0.9% NaCl than in those containing 5.0% NaCl. However, the MWA temperature-rise curves were only weakly affected by the ionic concentration. The median temperature difference values between the 5- and 15-mm points were markedly lower in the 0.9% NaCl cyst-mimicking phantom (P <0.001) than in the solid phantom after either MWA or RFA. CONCLUSIONS: Our data indicate that MWA is a more effective technique for focal cystic lesions than RFA and has higher overall energy utilization. MWA was also less affected by the ionic concentration of the cystic fluid. PMID- 29337090 TI - The Clinical Impact of Resident-attending Discrepancies in On-call Radiology Reporting: A Retrospective Assessment. AB - RATIONALE AND OBJECTIVES: The purpose of this study is to quantify the clinical impact of resident-attending discrepancies at a tertiary referral academic radiology residency program by assessing rates of intervention, discrepancy confirmation, recall rate, and management change rate; furthermore, a discrepancy categorization system will be assessed. MATERIALS AND METHODS: Retrospective review of the records was performed for n = 1482 discrepancies that occurred in the 17-month study period to assess the clinical impact of discrepancies. Discrepancies were grouped according to a previously published classification system. Management changes were recorded and grouped by severity. The recall rate was estimated for discharged patients. Any confirmatory testing was reviewed to evaluate the accuracy of the discrepant report. Categorical variables were compared to the chi-square test. RESULTS: The 1482 discrepancies led to management change in 661 cases (44.6%). The most common management change was follow-up imaging. Procedural interventions including surgery occurred in 50 cases (3.3%). The recall rate was 2.6%. Management changes were more severe with computed tomography examinations, inpatients, and when the discrepancy was in the chest and abdomen subspecialty. Also, management changes correlated with the discrepancy category assigned by the attending at the time of review. CONCLUSIONS: Resident-attending discrepancies do cause management changes in 44.6% of discrepancies (0.62% overall); the most frequent change is follow-up imaging. The discrepancy categorization assigned by the attending correlated with the severity of management change. PMID- 29337091 TI - A Clinically Meaningful Interpretation of the Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) II and III Data. AB - RATIONALE AND OBJECTIVES: This study aimed to calculate the multiple-level likelihood ratios (LRs) and posttest probabilities for a positive, indeterminate, or negative test result for multidetector computed tomography pulmonary angiography (MDCTPA) +/- computed tomography venography (CTV) and magnetic resonance pulmonary angiography (MRPA) +/- magnetic resonance venography (MRV) for each clinical probability level (two-, three-, and four-level) for the nine most commonly used clinical prediction rules (CPRs) (Wells, Geneva, Miniati, and Charlotte). The study design is a review of observational studies with critical review of multiple cohort studies. The settings are acute care, emergency room care, and ambulatory care (inpatients and outpatients). MATERIALS AND METHODS: Data were used to estimate pulmonary embolism (PE) pretest probability for each of the most commonly used CPRs at each probability level. Multiple-level LRs (positive, indeterminate, negative test) were generated and used to calculate posttest probabilities for MDCTPA, MDCTPA + CTV, MRPA, and MRPA + MRV from sensitivity and specificity results from Prospective Investigation of Pulmonary Embolism Diagnosis (PIOPED) II and PIOPED III for each clinical probability level for each CPR. Nomograms were also created. RESULTS: The LRs for a positive test result were higher for MRPA compared to MDCTPA without venography (76 vs 20) and with venography (42 vs 18). LRs for a negative test result were lower for MDCTPA compared to MRPA without venography (0.18 vs 0.22) and with venography (0.12 vs 0.15). In the three-level Wells score, the pretest clinical probability of PE for a low, moderate, and high clinical probability score is 5.7, 23, and 49. The posttest probability for an initially low clinical probability PE for a positive, indeterminate, and negative test result, respectively, for MDCTPA is 54, 5 and 1; for MDCTPA + CTV is 52, 2, and 0.7; for MRPA is 82, 6, and 1; and for MRPA + MRV is 72, 3, and 1; for an initially moderate clinical probability PE for MDCTPA is 86, 22, and 5; for MDCTPA + CTV is 85, 10, and 4; for MRPA is 96, 25, and 6; and for MRPA + MRV is 93, 14, and 4; and for an initially high clinical probability of PE for MDCTPA is 95, 47, and 15; for MDCTPA + CTV is 95, 27, and 10; for MRPA is 99, 52, and 17; and for MRPA + MRV is 98, 34, and 13. CONCLUSIONS: For a positive test result, LRs were considerably higher for MRPA compared to MDCTPA. However, both a positive MRPA and MDCTPA have LRs >10 and therefore can confirm the presence of PE. Performing venography reduced the LR for a positive and negative test for both MDCTPA and MRPA. The nomograms give posttest probabilities for a positive, indeterminate, or negative test result for MDCTPA and MRPA (with and without venography) for each clinical probability level for each of the CPR. PMID- 29337093 TI - Breast cancer in young women: do BRCA1 or BRCA2 mutations matter? PMID- 29337092 TI - Germline BRCA mutation and outcome in young-onset breast cancer (POSH): a prospective cohort study. AB - BACKGROUND: Retrospective studies provide conflicting interpretations of the effect of inherited genetic factors on the prognosis of patients with breast cancer. The primary aim of this study was to determine the effect of a germline BRCA1 or BRCA2 mutation on breast cancer outcomes in patients with young-onset breast cancer. METHODS: We did a prospective cohort study of female patients recruited from 127 hospitals in the UK aged 40 years or younger at first diagnosis (by histological confirmation) of invasive breast cancer. Patients with a previous invasive malignancy (except non-melanomatous skin cancer) were excluded. Patients were identified within 12 months of initial diagnosis. BRCA1 and BRCA2 mutations were identified using blood DNA collected at recruitment. Clinicopathological data, and data regarding treatment and long-term outcomes, including date and site of disease recurrence, were collected from routine medical records at 6 months, 12 months, and then annually until death or loss to follow-up. The primary outcome was overall survival for all BRCA1 or BRCA2 mutation carriers (BRCA-positive) versus all non-carriers (BRCA-negative) at 2 years, 5 years, and 10 years after diagnosis. A prespecified subgroup analysis of overall survival was done in patients with triple-negative breast cancer. Recruitment was completed in 2008, and long-term follow-up is continuing. FINDINGS: Between Jan 24, 2000, and Jan 24, 2008, we recruited 2733 women. Genotyping detected a pathogenic BRCA mutation in 338 (12%) patients (201 with BRCA1, 137 with BRCA2). After a median follow-up of 8.2 years (IQR 6.0-9.9), 651 (96%) of 678 deaths were due to breast cancer. There was no significant difference in overall survival between BRCA-positive and BRCA-negative patients in multivariable analyses at any timepoint (at 2 years: 97.0% [95% CI 94.5-98.4] vs 96.6% [95.8-97.3]; at 5 years: 83.8% [79.3-87.5] vs 85.0% [83.5-86.4]; at 10 years: 73.4% [67.4-78.5] vs 70.1% [67.7-72.3]; hazard ratio [HR] 0.96 [95% CI 0.76-1.22]; p=0.76). Of 558 patients with triple-negative breast cancer, BRCA mutation carriers had better overall survival than non-carriers at 2 years (95% [95% CI 89-97] vs 91% [88-94]; HR 0.59 [95% CI 0.35-0.99]; p=0.047) but not 5 years (81% [73-87] vs 74% [70-78]; HR 1.13 [0.70-1.84]; p=0.62) or 10 years (72% [62-80] vs 69% [63-74]; HR 2.12 [0.82-5.49]; p= 0.12). INTERPRETATION: Patients with young-onset breast cancer who carry a BRCA mutation have similar survival as non-carriers. However, BRCA mutation carriers with triple-negative breast cancer might have a survival advantage during the first few years after diagnosis compared with non-carriers. Decisions about timing of additional surgery aimed at reducing future second primary-cancer risks should take into account patient prognosis associated with the first malignancy and patient preferences. FUNDING: Cancer Research UK, the UK National Cancer Research Network, the Wessex Cancer Trust, Breast Cancer Now, and the PPP Healthcare Medical Trust Grant. PMID- 29337094 TI - Vitamin D attenuates pressure overload-induced cardiac remodeling and dysfunction in mice. AB - Vitamin D (VD) and its analogues play critical roles in metabolic and cardiovascular diseases. Recent studies have demonstrated that VD exerts a protective role in cardiovascular diseases. However, the beneficial effect of VD on pressure overload-induced cardiac remodeling and dysfunction and its underlying mechanisms are not fully elucidated. In this study, cardiac dysfunction and hypertrophic remodeling in mice were induced by pressure overload. Cardiac function was evaluated by echocardiography, and myocardial histology was detected by H&E and Masson's trichrome staining. Cardiomyocyte size was detected by wheat germ agglutinin staining. The protein levels of signaling mediators were examined by western blotting while mRNA expression of hypertrophic and fibrotic markers was examined by qPCR analysis. Oxidative stress was detected by dihydroethidine staining. Our results showed that administration of VD3 significantly ameliorates pressure overload-induced contractile dysfunction, cardiac hypertrophy, fibrosis and inflammation in mice. In addition, VD3 treatment also markedly inhibited cardiac oxidative stress and apoptosis. Moreover, protein levels of calcineurin A, ERK1/2, AKT, TGF-beta, GRP78, cATF6, and CHOP were significantly reduced whereas SERCA2 level was upregulated in the VD3-treated hearts compared with control. These results suggest that VD3 attenuates cardiac remodeling and dysfunction induced by pressure overload, and this protective effect is associated with inhibition of multiple signaling pathways. PMID- 29337095 TI - Development of native and modified banana starch nanoparticles as vehicles for curcumin. AB - In recent years, starch nanoparticles have been of great interest for drug delivery due to their relatively easy synthesis, biocompatibility, and vast amount of botanical sources. Native and acetylated starch obtained from green bananas were used for synthesis of curcumin-loaded starch nanoparticles. Mean particle size, encapsulation efficiency, and curcumin release in simulated gastric and intestinal fluids were studied. Both nanosystems showed sizes lower than 250 nm and encapsulation efficiency above 80%, with acetylated banana starch nanoparticles having the capacity to encapsulate more curcumin molecules. Both FTIR and XRD analyses showed that starch acetylation allows stronger hydrogen bond interaction between curcumin and the starch matrix, thus, higher encapsulation efficiency. Finally, curcumin release studies showed that acetylated banana starch nanoparticles allowed more controlled release, probably due to their stronger hydrogen bond interaction with curcumin. PMID- 29337096 TI - Fabrication and characterization of nanoengineered biocompatible n-HA/chitosan tamarind seed polysaccharide: Bio-inspired nanocomposites for bone tissue engineering. AB - In this communication we describe the fabrication of nano-hydroxyapatite/chitosan tamarind seed polysaccharide (n-HA/CS-TSP) nanocomposite with a weight ratio of 70/20/10, 70/15/15 and 70/10/20, respectively through a co-precipitation method. A comparative assessment of the properties of n-HA/CS-TSP and n-HA/CS nanocomposites was done by FT-IR, SEM-EDX, TEM, TGA/DTA, XRD and mechanical testing. The results suggested strong chemical interactions between the three components, decreased particle size and homogeneous dispersion of n-HA particles in n-HA/CS-TSP as compared to n-HA/CS. The n-HA/CS-TSP (70/10/20) showed the most porous and rough surface, enhanced thermal stability and highest compressive strength (4.0 MPa) and modulus (81 MPa). In addition, n-HA/CS-TSP (70/10/20) exhibited greater swelling character, acceptable degradation and increased biomineralization in simulated body fluid (SBF) as compared to n-HA/CS-TSP (70/20/10, 70/15/15) and n-HA/CS nanocomposites. The superior non-toxic response with MG-63 cells and better haemocompatibility was observed with n-HA/CS-TSP (70/15/15). Thereby, n-HA/CS-TSP nanocomposites could be promising alternative biomaterials in the field of bone tissue engineering compared to the n-HA/CS nanocomposite. PMID- 29337097 TI - Physical and antimicrobial properties of starch-carboxy methyl cellulose film containing rosemary essential oils encapsulated in chitosan nanogel. AB - This study was set to prepare a new active film by using a biodegradable bio based source, i.e., corn starch. To achieve that, benzoic acid (BA) and chitosan (CS) were covalently bound and CS-BA nanogel was then obtained using self assembly method. Subsequently, rosemary essential oil (REO) was encapsulated in CS-BA nanogel. Finally, REO in both free and encapsulated forms were incorporated in starch-carboxy methyl cellulose (CMC) films and their physical, mechanical and antimicrobial properties were studied. The films incorporating CS-BA nanogel had a higher water vapor permeability compared with the films containing REO. Moreover, film containing 0.2% CS-BA nanogel had the highest transparency and tensile strength. The REO and nanogel alone had inhibitory effects against Staphylococcus aureus (S. aureus) and by encapsulation, the inhibitory effect of REO was increased. By encapsulating REO in nanogel, both immediately (REO) and gradual (Nanogel) antimicrobial effect against S. aureus in the starch-CMC suspensions were obtained. PMID- 29337098 TI - Synthesis and characterization of chitin/curcumin blended polyurethane elastomers. AB - In this work, chitin-curcumin based polyurethane elastomers (PUEs) were prepared by step growth polymerization technique using hydroxy terminated polybutadiene (HTPB), hexamethylene diisocyanate (HDI), chitin and curcumin. The molecular characterization was done by using FTIR and SS 1HNMR techniques. The surface morphology and thermal stability was studied by scanning electron microscopy (SEM) and thermal gravimetric analysis (TGA), respectively. Degree of absorption and swelling characters were also determined in water as well as in DMSO. The crystalline behavior of prepared elastomers was checked by using X-ray diffraction (XRD) and differential scanning calorimeter (DSC). Results presented that crystallinity of elastomers increased by increasing the content of chitin due to formation of more ordered structure. PMID- 29337099 TI - Facile preparation and characterization of pH sensitive Mt/CMC nanocomposite hydrogel beads for propranolol controlled release. AB - The main aim of the present study was to design pH-sensitive nanocomposite hydrogel beads, based on carboxymethyl cellulose (CMC) and montmorillonite (Mt) propranolol (PPN) nanohybrid, and evaluate whether the prepared nanocomposite beads could potentially be used as oral drug delivery systems. PPN-as a model drug-was intercalated into the interlayer space of Mt clay mineral via the ion exchange procedure. The resultant nanohybrid (Mt-PPN) was applied to fabricate nanocomposite hydrogel beads by association with carboxymethyl cellulose. The characterization of test samples was performed using different techniques: X-Ray Diffraction (XRD), IR spectroscopy (FT-IR), thermal gravity analysis (TGA), and scanning electron microscopy (SEM). The drug encapsulation efficiency was evaluated by UV-vis spectroscopy, and was found to be high for Mt/CMC beads. In vitro drug release test was performed in the simulated gastrointestinal conditions to evaluate the efficiency of Mt-PPN/CMC nanocomposite beads as a controlled-release drug carrier. The drug release profiles indicated that the Mt PPN/CMC nanocomposite beads had high stability against stomach acid and a sustained- and controlled-release profile for PPN under the simulated intestinal conditions. PMID- 29337100 TI - Knockdown of long non-coding RNA XIST inhibits cell viability and invasion by regulating miR-137/PXN axis in non-small cell lung cancer. AB - Long non-coding RNAs (lncRNAs) may serve as miRNA sponges to modulate the expressions of miRNA target genes. LncRNA X-inactive specific transcript (XIST) has been demonstrated to be upregulated and act as an oncogene in non-small cell lung cancer (NSCLC). However, the sponge role of XIST in NSCLC progression remains largely unknown. In this study, we demonstrated that XIST was substantially upregulated and miR-137 was aberrantly downregulated in NSCLC tissues and cells. XIST was identified to function as a competitive endogenous RNA (ceRNA) for miR-137 to promote NSCLC cell viability and invasion. Additionally, our results suggested that miR-137 targeted the 3'UTR of paxillin (PXN) to suppress NSCLC cell viability and invasion. Meanwhile, miR-137 was negatively correlated with PXN expression while XIST was positively correlated with PXN expression. More importantly, XIST positively regulated PXN levels by sponging miR-137 in vitro and in vivo. Collectively, our study provided the evidence for the cross-talk between XIST, miR-137, and PXN, shedding light on the therapy for NSCLC. PMID- 29337101 TI - Extracellular polysaccharide from Weissella confusa OF126: Production, optimization, and characterization. AB - The production, optimization, and characterization of exopolysaccharide (EPS) from Weissella confusa OF126 and the in-vitro probiotic potentials of this strain was investigated. The EPS produced on sucrose modified-MRS broth was characterized. The purified EPS had an average molecular weight of 1.1 * 106 Da. HPLC analysis revealed the presence of glucose monomers, indicating its homopolysaccharide nature. The structural characteristics of the EPS were investigated by FTIR, and NMR spectroscopy. FTIR spectroscopy revealed the presence of hydroxyl, carboxyl, N-acetyl and amine groups. NMR analysis confirmed that the EPS contained alpha-(1 -> 6) linkage and alpha-(1 -> 3) branched linkage. The EPS showed strong in-vitro antioxidant activity. Four significant factors were optimized using Central Composite Design (CCD) and Response Surface Methodology (RSM). The predicted optimum conditions for EPS production were cultivation time (48.50 h), sucrose concentration (24.00 g/L), pH (7.00) and yeast extract (2.50%).The EPS produced was predicted to be 3.10 g/L, while the experimental yield was 3.00 g/L. This strain was found to possess desirable probiotic attributes by its ability to survive at pH 2.0 and in the presence of bile salts (0.50% (w/v)) for 4 h. The results obtained from this study demonstrate W. confusa OF126 as a promising probiotic and the EPS produced can find useful applications in industries. PMID- 29337102 TI - Polymeric microspheres of okra mucilage and alginate for the controlled release of oxcarbazepine: In vitro &in vivo evaluation. AB - Oxcarbazepine-loaded alginate/okra pods mucilage microspheres were prepared through inotropic gelation technique for the sustained release of oxcarbazepine. The drug encapsulating efficiency of these microspheres was found 76.22 +/- 0.01% to 90.57 +/- 0.02% and their average particle sizes were 496 MUm +/- 0.41 to 692 MUm +/- 0.22. These microspheres were characterized in terms of swelling capacity, FTIR, DSC and SEM analysis. The in vitro drug release from these microspheres was followed sustained release (Korsemeyer - Peppas model) pattern (R2 = 0.9552-0.9906) and value of n > 1 showed that drug released by anomalous (non-Fickian) diffusion. The in vivo studies showed that there were highly significant difference with p < 0.001 in the pharmacokinetic parameters (Cmax, t1/2, AUC0-infinity, Ke), when oxcarbazepine was formulated in form of polymeric microspheres as compared to pure drug. PMID- 29337103 TI - Green options for imparting antibacterial functionality to cotton fabrics. AB - This study demonstrated that antibacterial cellulosic textiles can be fabricated in eco-friendly manner by grafting of monochlorotriazinyl beta-cyclodextin (MCT betaCD) onto knitted and woven cotton fabrics followed by post-loading of any of the green active ingredients namely Rosemary oil, Lavender oil, Clove oil, Cinnamon oil, Aloe vera gel, Vanillin, Ag-ions, Natural Yellow 7 and Natural Red 25 dyes into the hydrophobic cavities of grafted beta-CD moieties. Some of the grafted, post-loaded fabric samples were characterized by FTIR, SEM, and EDS analysis. The enhancement in the imparted antibacterial functionality as well as durability to wash are governed by type of cellulosic substrate, kind, chemistry, antibacterial activity as well as extent of inclusion and subsequent release of the hosted bioactive agent. The obtained results revealed that the antibacterial efficacy follows the deceasing orders: i) knitted fabric > woven fabric and ii) Ag-ions > Lavender oil > Natural Yellow 7 > Aloe vera > Cinnamon oil > Natural Red 25 > Vanillin > Clove oil > Rosemary oil-loaded fabric sample, keeping other parameters constant. PMID- 29337104 TI - Bioactive potential and composition analysis of sulfated polysaccharide from Acanthophora spicifera (Vahl) Borgeson. AB - Marine seaweeds contain a valuable source of functional bioactive polysaccharide and it plays main role for effective anticancer activity. The structural feature of SPs was studied through FT-IR and 1H NMR spectra analysis. The isolated SPs from A. spicifera contain 63.3% of total sugar, 21.9% of total sulfate and 12.6% of total uranic acid was found. The active F2 fraction molecular weight of SP was found to be 420 kDa. The sugar was composed of galactose (73.5%), xylose (9.2%), mannose (1.9%) and arabinose (10.9%). Further the SP showed DPPH free radical scavenging activity of 55.55% at 150 MUg/mL and reducing power activity of 91.3% at 125 MUg/mL. In the present study, the purified sulfated polysaccharide (fraction F2) were extracted, purified and characterized for red seaweed and evaluated for their potential anticancer activity of in A549 cell lines under in vitro condition. These polysaccharide fractions exhibited potential apoptotic effects on A549 cell lines. PMID- 29337105 TI - Chitosan/sodium tripolyphosphate nanoparticles as efficient vehicles for antioxidant peptidic fraction from common kilka. AB - Fish-purified antioxidant peptide (AOP)-loaded chitosan nanoparticles (CSNPs) were synthesized based on the ionotropic gelation between CS and sodium tripolyphosphate (TPP). The zeta-potential showed an earlier rise and later decrease with increasing concentrations of AOP. Transmission electron microscopy (TEM) images also revealed roughly uniform spherical-shaped nanoparticles with diameter of <100 nm. Molecular interactions among the components of the NPs and peptides were confirmed by FT-IR spectroscopy. Thermo-gravimetric analysis (TGA) results showed the improved thermal stability of the AOP-loaded CSNPs compared with free peptides. The maximum peptide encapsulation efficiency was determined to be 71.16% and the in vitro release of peptides from CSNPs was in a controllable manner. Furthermore, assessing the free radical scavenging ability of the peptide-encapsulated NPs and the reducing power assay, confirmed the efficacy of such nanosystem in retaining the antioxidant activity of fish-derived peptides. PMID- 29337106 TI - Loss of TGF-beta signaling in osteoblasts increases basic-FGF and promotes prostate cancer bone metastasis. AB - TGF-beta plays a central role in prostate cancer (PCa) bone metastasis, and it is crucial to understand the bone cell-specific role of TGF-beta signaling in this process. Thus, we used knockout (KO) mouse models having deletion of the Tgfbr2 gene specifically in osteoblasts (Tgfbr2Col1CreERT KO) or in osteoclasts (Tgfbr2LysMCre KO). We found that PCa-induced bone lesion development was promoted in the Tgfbr2Col1CreERT KO mice, but was inhibited in the Tgfbr2LysMCre KO mice, relative to their respective control Tgfbr2FloxE2 littermates. Since metastatic PCa cells attach to osteoblasts when colonized in the bone microenvironment, we focused on the mechanistic studies using the Tgfbr2Col1CreERT KO mouse model. We found that bFGF was upregulated in osteoblasts from PC3-injected tibiae of Tgfbr2Col1CreERT KO mice and correlated with increased tumor cell proliferation, angiogenesis, amounts of cancer associated fibroblasts and osteoclasts. In vitro studies showed that osteoblastogenesis was inhibited, osteoclastogenesis was stimulated, but PC3 viability was not affected, by bFGF treatments. Lastly, the increased PC3-induced bone lesions in Tgfbr2Col1CreERT KO mice were significantly attenuated by blocking bFGF using neutralizing antibody, suggesting bFGF is a promising target inhibiting bone metastasis. PMID- 29337107 TI - tRNA-derived small non-coding RNAs in human disease. AB - Besides attending protein synthesis, transfer RNA (tRNA) is an important regulatory non-coding RNA (ncRNA) that participates in various cellular processes, including cellular metabolism and cell death. Fragments generated from pre- or mature tRNAs by specific endonucleases cleavage (tRNA-derived small non coding RNA [tsncRNAs]), rather than random degradation products, are newly defined functional small non-coding RNAs (sncRNAs). They can be regulated in bacteria, yeast, plants and animals to respond to stress conditions, resulting in regulation of gene expressions at both transcriptional and post-transcriptional level. Increasing evidence showed that the dysregulation of a series of tsncRNAs is associated with several types of human disease. In this review, we summarize the diversity and biogenesis of tsncRNAs in mammals and highlight the functions and mechanisms of different sub-classes of tsncRNAs in human disease. PMID- 29337108 TI - A vascular disrupting agent overcomes tumor multidrug resistance by skewing macrophage polarity toward the M1 phenotype. AB - Multidrug resistance (MDR) mediated by ATP-binding cassette (ABC) transporters is the major obstacle for chemotherapeutic success. Although attempts have been made to circumvent ABC transporter-mediated MDR in past decades, there is still no effective agent in clinic. Here, we identified a vascular disrupting agent, Z-GP DAVLBH, that significantly inhibited the growth of multidrug-resistant human hepatoma HepG2/ADM and human breast cancer MCF-7/ADR tumor xenografts, although these cells were insensitive to Z-GP-DAVLBH in vitro. Z-GP-DAVLBH increased the secretion of granulocyte-macrophage colony-stimulating factor in tumor tissues and serum of tumor-bearing mice to skew tumor-associated macrophages from the pro tumor M2 phenotype to the antitumor M1 phenotype, thereby contributing to the induction of HepG2/ADM and MCF-7/ADR cell apoptosis. Our findings shed new light on the underlying mechanisms of VDAs in the treatment of drug-resistant tumors and provide strong evidence that Z-GP-DAVLBH should be a promising agent for overcoming MDR. PMID- 29337109 TI - Molecular mechanisms of lncRNA SMARCC2/miR-551b-3p/TMPRSS4 axis in gastric cancer. AB - Decreased expression of miR-551b-3p has been identified in gastric cancer tissues but its biological role and underlying mechanism in this malignancy is poorly understood. In this study, we show that the expression of miR-551b-3p negatively correlates with the depth of tumour invasion and lymphatic metastasis, but it positively correlates with tumour differentiation and the patient survival. MiR 551b-3p negatively affects the proliferation, mobility and invasiveness of gastric cancer cells. LncRNA SMARCC2 inhibits the expression of miR-551b-3p through binding to its mRNA response elements in gastric cancer cells. Overexpression of LncRNA SMARCC2 enhances the proliferation and migration of gastric cancer cells, while inhibition of LncRNA SMARCC2 does the opposite. TMPRSS4 is a direct target gene of miR-551b-3p. We conclude that miR-551b-3p functions as a tumour suppressor gene in gastric cancer, and its function is regulated by LncRNA SMARCC2/miR-551b-3p/TMPRSS4 axis. PMID- 29337110 TI - MUC16 C terminal-induced secretion of tumor-derived IL-6 contributes to tumor associated Treg enrichment in pancreatic cancer. AB - Pancreatic cancer is the most lethal tumor. CA125 (gene symbol MUC16) is an important serum marker for pancreatic cancer diagnosis and treatment. High serum CA125 is related to metabolic tumor burden and poor prognosis. The circulating Treg subset is another independent prognostic factor for pancreatic cancer. Our unpublished data indicated that the circulating Treg proportion might be related to the serum CA125 level. However, the potential relationship and underlying mechanism of MUC16 and Treg in pancreatic cancer tissues remain unclear. In this study, we found that pancreatic cancer tissues were positive for both MUC16 C terminal (MUC16c) and Foxp3 expression and that their expression was correlated. MUC16c released into the cytoplasm via EGF induction significantly increased IL-6 expression and secretion. The PI3K/AKT pathway may participate in the regulation of IL-6 expression and secretion. By treating CD4+ T cells with IL-6 or co culturing the cells with pancreatic cancer cells, tumor-derived IL-6 was identified to promote Foxp3 expression and Treg differentiation, which was significantly inhibited by the JAK2 inhibitor AG-490. In sum, our study demonstrated that the relationship between the MUC16c level and Foxp3 expression in the local tumor environment was consistent with that of the serum CA125 level and circulating Treg proportion in the systemic environment. MUC16c promoted Foxp3 expression and tumor-associated Treg enrichment in tumor tissues through tumor-secreted IL-6 activation of the JAK2/STAT3 pathway. These findings may provide deeper insight into potential pancreatic cancer therapy approaches. PMID- 29337111 TI - Early re-staging and molecular subtype shift surveillance of locally recurrent or metastatic breast cancer: A new PET/CT integrated precise algorithm. AB - Recurrent breast cancer poses considerable diagnostic and therapeutic challenges for clinic. Clinical suspicion of recurrence must be first confirmed by imaging studies. Then re-biopsy of suspected recurrence and metastasis in patients with breast cancer is recommended in the practice guidelines of the National Comprehensive Cancer Network (NCCN) and European Society for Medical Oncology (ESMO) to confirm whether the molecular subtype changes. It may change the individual treatment plan directly. Our research provided an integrated algorithm for locally recurrent or distant metastatic breast cancer, including early relapse detection and subsequently a new practical PET/CT imaging guide biopsy approach for surveilling molecular subtype shifts of the recurrent breast cancer. In our results, 18F-FDG PET/CT appears to be more sensitive and accurate than conventional imaging technologies in early detecting locally recurrent or metastatic breast cancer. PET/CT-guided percutaneous FDG-avid target biopsies offers a new integrated precise re-biopsy algorithm for pathologic confirm and surveillance of molecular subtype shifts of the recurrent breast cancer. The precise algorithm for breast cancer recurrence and metastasis can be established in one stop, opening a window of opportunity for breast cancer patients to improve precise individual therapy and prolong survival. PMID- 29337112 TI - Molecular heterogeneity in diffuse large B-cell lymphoma and its implications in clinical diagnosis and treatment. AB - Over half of patients with diffuse large B-cell lymphoma (DLBCL) can be cured by standard R-CHOP treatment (rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone). However, the remaining patients are refractory and ultimately succumb to progressive or relapsed disease. During the past decade, there has been significant progress in the understanding of molecular mechanisms in DLBCL, largely owing to collaborative efforts in large-scale gene expression profiling and deep sequencing, which have identified genetic alterations critical in lymphomagenesis through activation of key signaling transduction pathways in DLBCL. These discoveries have not only led to the development of targeted therapies, including several currently in clinical trials, but also laid a solid foundation for the future identification of more effective therapies for patients not curable by R-CHOP. This review summarizes the recent advances in our understanding of the molecular characterization and pathogenesis of DLBCL and new treatment directions. PMID- 29337113 TI - Volta phase plate data collection facilitates image processing and cryo-EM structure determination. AB - A current bottleneck in structure determination of macromolecular complexes by cryo electron microscopy (cryo-EM) is the large amount of data needed to obtain high-resolution 3D reconstructions, including through sorting into different conformations and compositions with advanced image processing. Additionally, it may be difficult to visualize small ligands that bind in sub-stoichiometric levels. Volta phase plates (VPP) introduce a phase shift in the contrast transfer and drastically increase the contrast of the recorded low-dose cryo-EM images while preserving high frequency information. Here we present a comparative study to address the behavior of different data sets during image processing and quantify important parameters during structure refinement. The automated data collection was done from the same human ribosome sample either as a conventional defocus range dataset or with a Volta phase plate close to focus (cfVPP) or with a small defocus (dfVPP). The analysis of image processing parameters shows that dfVPP data behave more robustly during cryo-EM structure refinement because particle alignments, Euler angle assignments and 2D & 3D classifications behave more stably and converge faster. In particular, less particle images are required to reach the same resolution in the 3D reconstructions. Finally, we find that defocus range data collection is also applicable to VPP. This study shows that data processing and cryo-EM map interpretation, including atomic model refinement, are facilitated significantly by performing VPP cryo-EM, which will have an important impact on structural biology. PMID- 29337114 TI - Pathological Endogenous alpha-Synuclein Accumulation in Oligodendrocyte Precursor Cells Potentially Induces Inclusions in Multiple System Atrophy. AB - Glial cytoplasmic inclusions (GCIs), commonly observed as alpha-synuclein (alpha syn)-positive aggregates within oligodendrocytes, are the pathological hallmark of multiple system atrophy. The origin of alpha-syn in GCIs is uncertain; there is little evidence of endogenous alpha-syn expression in oligodendrocyte lineage cells, oligodendrocyte precursor cells (OPCs), and mature oligodendrocytes (OLGs). Here, based on in vitro analysis using primary rat cell cultures, we elucidated that preformed fibrils (PFFs) generated from recombinant human alpha syn trigger multimerization and an upsurge of endogenous alpha-syn in OPCs, which is attributable to insufficient autophagic proteolysis. RNA-seq analysis of OPCs revealed that alpha-syn PFFs interfered with the expression of proteins associated with neuromodulation and myelination. Furthermore, we detected cytoplasmic alpha-syn inclusions in OLGs through differentiation of OPCs pre incubated with PFFs. Overall, our findings suggest the possibility of endogenous alpha-syn accumulation in OPCs that contributes to GCI formation and perturbation of neuronal/glial support in multiple system atrophy brains. PMID- 29337116 TI - Impact of Swiprosin-1/Efhd2 on Adult Hippocampal Neurogenesis. AB - Swiprosin-1/Efhd2 (Efhd2) is highly expressed in the CNS during development and in the adult. EFHD2 is regulated by Ca2+ binding, stabilizes F-actin, and promotes neurite extension. Previous studies indicated a dysregulation of EFHD2 in human Alzheimer's disease brains. We hypothesized a detrimental effect of genetic ablation of Efhd2 on hippocampal integrity and specifically investigated adult hippocampal neurogenesis. Efhd2 was expressed throughout adult neuronal development and in mature neurons. We observed a severe reduction of the survival of adult newborn neurons in Efhd2 knockouts, starting at the early neuroblast stage. Spine formation and dendrite growth of newborn neurons were compromised in full Efhd2 knockouts, but not upon cell-autonomous Efhd2 deletion. Together with our finding of severe hippocampal tauopathy in Efhd2 knockout mice, these data connect Efhd2 to impaired synaptic plasticity as present in Alzheimer's disease and identify a role of Efhd2 in neuronal survival and synaptic integration in the adult hippocampus. PMID- 29337115 TI - Purification of GFRalpha1+ and GFRalpha1- Spermatogonial Stem Cells Reveals a Niche-Dependent Mechanism for Fate Determination. AB - Undifferentiated spermatogonia comprise a pool of stem cells and progenitor cells that show heterogeneous expression of markers, including the cell surface receptor GFRalpha1. Technical challenges in isolation of GFRalpha1+ versus GFRalpha1- undifferentiated spermatogonia have precluded the comparative molecular characterization of these subpopulations and their functional evaluation as stem cells. Here, we develop a method to purify these subpopulations by fluorescence-activated cell sorting and show that GFRalpha1+ and GFRalpha1- undifferentiated spermatogonia both demonstrate elevated transplantation activity, while differing principally in receptor tyrosine kinase signaling and cell cycle. We identify the cell surface molecule melanocyte cell adhesion molecule (MCAM) as differentially expressed in these populations and show that antibodies to MCAM allow isolation of highly enriched populations of GFRalpha1+ and GFRalpha1- spermatogonia from adult, wild-type mice. In germ cell culture, GFRalpha1- cells upregulate MCAM expression in response to glial cell line-derived neurotrophic factor (GDNF)/fibroblast growth factor (FGF) stimulation. In transplanted hosts, GFRalpha1- spermatogonia yield GFRalpha1+ spermatogonia and restore spermatogenesis, albeit at lower rates than their GFRalpha1+ counterparts. Together, these data provide support for a model of a stem cell pool in which the GFRalpha1+ and GFRalpha1- cells are closely related but show key cell-intrinsic differences and can interconvert between the two states based, in part, on access to niche factors. PMID- 29337117 TI - XIST Derepression in Active X Chromosome Hinders Pig Somatic Cell Nuclear Transfer. AB - Pig cloning by somatic cell nuclear transfer (SCNT) remains extremely inefficient, and many cloned embryos undergo abnormal development. Here, by profiling transcriptome expression, we observed dysregulated chromosome-wide gene expression in every chromosome and identified a considerable number of genes that are aberrantly expressed in the abnormal cloned embryos. In particular, XIST, a long non-coding RNA gene, showed high ectopic expression in abnormal embryos. We also proved that nullification of the XIST gene in donor cells can normalize aberrant gene expression in cloned embryos and enhance long-term development capacity of the embryos. Furthermore, the increased quality of XIST-deficient embryos was associated with the global H3K9me3 reduction. Injection of H3K9me demethylase Kdm4A into NT embryos could improve the development of pre implantation stage embryos. However, Kdm4A addition also induced XIST derepression in the active X chromosome and thus was not able to enhance the in vivo long-term developmental capacity of porcine NT embryos. PMID- 29337118 TI - Recapitulation of Extracellular LAMININ Environment Maintains Stemness of Satellite Cells In Vitro. AB - Satellite cells function as precursor cells in mature skeletal muscle homeostasis and regeneration. In healthy tissue, these cells are maintained in a state of quiescence by a microenvironment formed by myofibers and basement membrane in which LAMININs (LMs) form a major component. In the present study, we evaluated the satellite cell microenvironment in vivo and found that these cells are encapsulated by LMalpha2-5. We sought to recapitulate this satellite cell niche in vitro by culturing satellite cells in the presence of recombinant LM-E8 fragments. We show that treatment with LM-E8 promotes proliferation of satellite cells in an undifferentiated state, through reduced phosphorylation of JNK and p38. On transplantation into injured muscle tissue, satellite cells cultured with LM-E8 promoted the regeneration of skeletal muscle. These findings represent an efficient method of culturing satellite cells for use in transplantation through the recapitulation of the satellite cell niche using recombinant LM-E8 fragments. PMID- 29337119 TI - SOX10 Single Transcription Factor-Based Fast and Efficient Generation of Oligodendrocytes from Human Pluripotent Stem Cells. AB - Scarce access to primary samples and lack of efficient protocols to generate oligodendrocytes (OLs) from human pluripotent stem cells (hPSCs) are hampering our understanding of OL biology and the development of novel therapies. Here, we demonstrate that overexpression of the transcription factor SOX10 is sufficient to generate surface antigen O4-positive (O4+) and myelin basic protein-positive OLs from hPSCs in only 22 days, including from patients with multiple sclerosis or amyotrophic lateral sclerosis. The SOX10-induced O4+ population resembles primary human OLs at the transcriptome level and can myelinate neurons in vivo. Using in vitro OL-neuron co-cultures, myelination of neurons by OLs can also be demonstrated, which can be adapted to a high-throughput screening format to test the response of pro-myelinating drugs. In conclusion, we provide an approach to generate OLs in a very rapid and efficient manner, which can be used for disease modeling, drug discovery efforts, and potentially for therapeutic OL transplantation. PMID- 29337121 TI - The Society of Thoracic Surgeons Congenital Heart Surgery Database: 2018 Update on Outcomes and Quality. AB - The Society of Thoracic Surgeons Congenital Heart Surgery Database is a comprehensive registry of clinical outcomes that captures almost all pediatric cardiac surgical operations in the United States. It is the platform for all activities of The Society of Thoracic Surgeons related to the analysis of outcomes and the improvement of quality in this subspecialty. This article summarizes current aggregate national outcomes in congenital and pediatric cardiac surgery and reviews related activities in the areas of quality measurement, performance improvement, and transparency. The reported data about aggregate national outcomes are exemplified by an analysis of 10 benchmark operation groups performed from January 2013 through December 2016. This analysis documents the overall aggregate Operative Mortality (interquartile range among all participating programs) for the following procedural groups: off-bypass coarctation repair, 1.3% (0.0% to 1.4%%); ventricular septal defect repair, 0.6% (0.0% to 0.9%); tetralogy of Fallot repair, 1.1% (0.0% to 2.0%); complete atrioventricular canal repair, 2.7% (0.0% to 4.4%); arterial switch operation, 2.2% (0.0% to 2.9%); arterial switch operation and ventricular septal defect repair, 5.1% (0.0% to 8.3%); Glenn/HemiFontan, 2.1% (0.0% to 3.1%); Fontan operation, 1.1% (0.0% to 0.0%); truncus arteriosus repair, 10.1% (0.0% to 15.4%); and Norwood procedure, 15.8% (9.0% to 25.0%). PMID- 29337120 TI - Deriving Dorsal Spinal Sensory Interneurons from Human Pluripotent Stem Cells. AB - Cellular replacement therapies for neurological conditions use human embryonic stem cell (hESC)- or induced pluripotent stem cell (hiPSC)-derived neurons to replace damaged or diseased populations of neurons. For the spinal cord, significant progress has been made generating the in-vitro-derived motor neurons required to restore coordinated movement. However, there is as yet no protocol to generate in-vitro-derived sensory interneurons (INs), which permit perception of the environment. Here, we report on the development of a directed differentiation protocol to derive sensory INs for both hESCs and hiPSCs. Two developmentally relevant factors, retinoic acid in combination with bone morphogenetic protein 4, can be used to generate three classes of sensory INs: the proprioceptive dI1s, the dI2s, and mechanosensory dI3s. Critical to this protocol is the competence state of the neural progenitors, which changes over time. This protocol will facilitate developing cellular replacement therapies to reestablish sensory connections in injured patients. PMID- 29337122 TI - Lung Focused Resuscitation at a Specialized Donor Care Facility Improves Lung Procurement Rates. AB - BACKGROUND: Lung procurement for transplantation occurs in approximately 20% of brain dead donors and is a major impediment to wider application of lung transplantation. We investigated the effect of lung protective management at a specialized donor care facility on lung procurement rates from brain dead donors. METHODS: Our local organ procurement organization instituted a protocol of lung protective management at a freestanding specialized donor care facility in 2008. Brain dead donors from 2001 to 2007 (early period) were compared with those from 2009 to 2016 (current period) for lung procurement rates and other solid-organ procurement rates using a prospectively maintained database. RESULTS: An overall increase occurred in the number of brain dead donors during the study period (early group, 791; late group, 1,333; p < 0.0001). The lung procurement rate (lung donors/all brain dead donors) improved markedly after the introduction of lung protective management (early group, 157 of 791 [19.8%]; current group, 452 of 1,333 [33.9%]; p < 0.0001). The overall organ procurement rate (total number of organs procured/donor) also increased during the study period (early group, 3.5 organs/donor; current group, 3.8 organs/donor; p = 0.006). CONCLUSIONS: Lung protective management in brain dead donors at a specialized donor care facility is associated with higher lung utilization rates compared with conventional management. This strategy does not adversely affect the utilization of other organs in a multiorgan donor. PMID- 29337123 TI - Mesenchymal Stem Cell-Based Therapy Improves Lower Limb Movement After Spinal Cord Ischemia in Rats. AB - BACKGROUND: Spinal cord ischemia is a devastating complication after thoracic and thoracoabdominal aortic operations. In this study, we aimed to investigate the effects of mesenchymal stem cells (MSCs), which have regenerative capability and exert paracrine actions on damaged tissues, injected into rat models of spinal cord ischemia-reperfusion injury. METHODS: Forty-five Sprague-Dawley rats were divided into sham, phosphate-buffered saline (PBS), and MSC groups. Spinal cord ischemia was induced in the latter two groups by balloon occlusion of the thoracic aorta. MSCs and PBS were then immediately injected into the left carotid artery of the MSC and PBS groups, respectively. Hindlimb motor function was evaluated at 6 and 24 hours. The spinal cord was removed at 24 hours after ischemia-reperfusion injury, and histologic and immunohistochemical analyses and real-time polymerase chain reaction assessments were performed. RESULTS: Rats in the MSC and PBS groups showed flaccid paraparesis/paraplegia postoperatively. Hindlimb function was significantly better at 6 and 24 hours after ischemia reperfusion injury in the MSC group than in the PBS group (p < 0.05). The number of terminal deoxynucleotidyl transferase dUTP nick end labeling-positive neuron cells in the spinal cord and the ratio of Bax to Bcl2 were significantly larger (p < 0.05) in the PBS group than in the MSC group. The injected MSCs were observed in the spinal cord 24 hours after ischemia-reperfusion injury. CONCLUSIONS: The MSC therapy by transarterial injection immediately after spinal cord ischemia-reperfusion injury may improve lower limb function by preventing apoptosis of neuron cells in the spinal cord. PMID- 29337124 TI - Evaluation of Prophylactic Antibiotic Use for Delayed Sternal Closure After Cardiothoracic Operation. AB - BACKGROUND: Clinical practice guidelines provide recommendations for surgical prophylaxis in patients undergoing cardiothoracic procedures. However, currently no recommendations guide the management of antibiotic prophylaxis in patients who require delayed sternal closure after cardiothoracic operation. METHODS: This is a single-center, retrospective analysis. Data were extracted from The Society of Thoracic Surgery database and electronic medical record from July 2011 through January 2016. Patients included are adults (>=18 years old) after cardiothoracic operation with delayed sternal closure. RESULTS: A total of 167 patients were included for analysis. The majority of patients (131, 78.4%) were continued on routine antibiotics and 36 patients (21.6%) were switched to broad-spectrum antibiotics for prophylaxis. Of patients on routine antibiotic prophylaxis, 6 (4.6%) experienced a sternal surgical site infection, whereas 3 patients (8.3%) switched to broad-spectrum agents before chest closure experienced a sternal surgical site infection (p = 0.407). Eleven patients (6.6%) received an abbreviated duration of antibiotics, 52 patients (31.1%) were continued on antibiotics until the time of sternal closure, and 104 patients (62.3%) were continued on antibiotics past the time of sternal closure. The incidence of infection based on duration of prophylactic antibiotic was 0, 1 (1.9%), and 8 (7.7%), respectively (p = 0.352). CONCLUSIONS: Substantial variation was found in the duration and selection of antibiotic prophylaxis for patients with delayed sternal closure after cardiothoracic operation. Broad-spectrum antimicrobial agents and extended durations of antibiotic prophylaxis were not associated with benefits in the incidence of sternal wound infection and may increase the risk of adverse effects. PMID- 29337125 TI - Facilitating Hemostasis After Proximal Aortic Surgery: Results of The PROTECT Trial. AB - BACKGROUND: This study intended to evaluate the safety and hemostatic efficacy of a novel vascular sealant (Tridyne; Neomend, Inc, Irvine, CA) compared with an accepted adjunctive hemostatic agent applied to aortotomy and sutures lines in cardiovascular operations. METHODS: Patients undergoing aortic valve replacement, ascending aortic replacement, or aortic root replacement were randomly assigned 2:1 to Tridyne (n = 107) or Gelfoam Plus (Baxter Healthcare Corp, Hayward, CA) (n = 51). These groups were similar with regard to age, sex, race, medical history, duration of bypass and cross-clamping, and number of suture lines treated. Suture lines were treated after confirmation of some leakage but before formal removal of the clamp. RESULTS: The median bleeding time was significantly lower for Tridyne versus Gelfoam Plus (0 versus 10.0 minutes, p < 0.0001). Immediate hemostasis was achieved in 59.4% of the Tridyne group versus 16.0% of Gelfoam Plus group (p < 0.0001). A significantly greater proportion of patients in the Tridyne group achieved successful hemostasis at the aortic suture line than patients in the Gelfoam Plus group (85.7% versus 40.0%, p < 0.0001). The Clinical Events Committee adjudicated 7 patients with possible device-related serious adverse events: 3 patients (2.9%) in the Tridyne group and 4 patients (8.2%) in the Gelfoam Plus group (p = 0.2097). CONCLUSIONS: Tridyne was safe and effective when used as an adjunct to conventional hemostasis to treat high-pressure vessels in patients who receive anticoagulation agents, in reducing time to hemostasis, and in promoting both immediate and persistent hemostasis. PMID- 29337126 TI - Rigid Plate Fixation Versus Wire Cerclage: Patient-Reported and Economic Outcomes From a Randomized Trial. AB - BACKGROUND: In a multicenter randomized trial, sternal closure after cardiac operations using rigid plate fixation (RPF) compared with wire cerclage (WC) resulted in improved sternal healing, reduced sternal complications, and was cost neutral at 6 months. Additional secondary end points are presented from this trial. METHODS: Twelve United States centers randomized 236 patients to RPF (n = 116) or WC (n = 120). Patient-reported outcomes measures, including pain, function, and quality of life scores, were assessed through 6 months and correlated to computed tomography-derived sternal healing scores using logistic regression. Cost analysis through 90 days was performed to mimic bundled care models. RESULTS: All patient-reported outcomes measures were numerically better in RPF patients than in WC patients at all assessments. RPF resulted in more patients reporting no sternal pain after coughing at 3 weeks (41.1% vs 19.6%; p = 0.001) and 6 weeks (54.5% vs 35.1%; p = 0.005) and at rest at 6 weeks (74.1% vs 58.8%; p = 0.02) and 3 months (87.6% vs 75.9%; p = 0.03) compared with WC. Better sternal healing scores correlated to having no sternal pain at rest (odds ratio, 1.6; 95% confidence interval, 1.2 to 2.2; p = 0.002) and after coughing (odds ratio, 1.6; 95% confidence interval, 1.2 to 2.2; p = 0.0007). RPF resulted in improvements in the 36-Item Short Form Health Survey quality of life scores at 3 weeks (53.5 +/- 8.7 vs 50.5 +/- 10.4; p = 0.03), 6 weeks (45.3 +/- 8.4 vs 42.7 +/ 8.4; p = 0.03), and 6 months (56.4 +/- 6.8 vs 53.9 +/- 9.0; p = 0.04) compared with WC. Through 90 days, RPF compared with WC was $1,888 less (95% confidence interval, -$8,889 to $4,273; p = 0.52). CONCLUSIONS: In patients undergoing sternal closure after median sternotomy, RPF compared with WC resulted in reduced sternal pain, improved upper extremity function, and similar total 90-day costs. PMID- 29337127 TI - [Epidemiology of emergency consultations for acute urine retention]. AB - INTRODUCTION: Acute urinary retention (AUR) is a common reason for emergency consultation. It may be spontaneous or precipitated and affects both men and women. The purpose of this study was to determine the profile of men visiting emergency departments for an AUR. MATERIEL AND METHODS: A retrospective monocentric study including all men who consulted the emergency department between January 2014 and December 2016 for AUR was conducted. RESULTS: In 3 years, 731 patients were admitted for AUR (611 men and 120 women). The mean age was 71.6+/-14 years with a mean retention volume of 948+/-668mL drained for 96% of patients (n=584) through a bladder catheter and 4% (n=27) with a suprapubic catheter. Most patients had an urological (66%, n=104) or neurologic (40%, n=242) history and 23% (n=136) already had an episode of AUR. In 28% of cases (n=173), the globe was not painful. A majority of AUR were spontaneous, 53% (n=326) versus 46% (n=279) who were precipitated, secondary to a recent surgical procedure (<1 month) (15%, n=89), hematuria (9%, n=54), or male urinary tract infections (7%, n=42). Patients were treated externally in 71% (n=436), 25% (n=153) were hospitalized with significantly more comorbidities. CONCLUSION: Men consulting emergency for AUR are 72 years old, with a globe volume of 942mL. Thirty-three percent have a history of BPH, with a prostate treatment like alpha-blockers type. Almost all patients were treated with a bladder catheter and the majority was treated externally. LEVEL OF EVIDENCE: 4. PMID- 29337128 TI - [Estimating minimum period of time to perform prostate MRI after prostate biopsy: Clinical and histological bleeding risk factors; from a prospective study]. AB - : A minimum delay of 4 to 6 weeks between biopsy and multiparametric prostatic MRI (mpMRI) is admitted due to post-biopsy hemorrhage that can impact MRI reading without strong scientific evidence. The objective of the study was to evaluate the best period between prostate biopsy and 3Tesla mpMRI and searching for predictive factors of intraprostatic blood. METHOD: A prostate biopsy followed by a 4-week prostate MRI (MRIp M1) was performed. In case of hemorrhage, MRI was rescheduled at 8 and 12 weeks (M2/M3). We analyzed the persistant bleeding to identify risk factors: anticoagulant/antiaggregant, post-biopsy side effects, histological criteria. RESULTS: In this prospective, single-center study, we included 40 patients followed for suspected prostate cancer between December 2014 and March 2016. At the MRIpM1, blood was found for 97.5 % of the patients. The rates were 90.9 % and 88.9 % respectively at the M2 and M3 mpMRI. Compared to initial blood volume on MRIpM1, a significant decrease in blood volume was observed between M1 and M2 (55 %; P=0.0091). We showed a 75 % decrease between M1 and M3 (P=0.0003). Low urinary tract symptoms (LUTS) suggesting urinary infection at 4 weeks were significantly correlated with blood volume on MRIpM1 (P=0.0063). The blood volume was higher in case of unconformity between biopsy and mpMRI results for detection of significant tumors (11.3 vs. 2.3; P=0.0051). CONCLUSIONS: A minimum of 8-week biopsy and mpMRI period would limit post-biopsy hemorrhage, predicted by LUTS suggesting urinary infection. A delay of 12 weeks would be optimal without delaying the management of the patient. LEVEL OF EVIDENCE: 4. PMID- 29337129 TI - Effect of amino acid substitution of CAPRICE on cell-to-cell movement ability in Arabidopsis root epidermis. AB - An R3-type MYB transcription factor, CAPRICE (CPC), is known to promote root hair cell differentiation in Arabidopsis root epidermis. The CPC protein moves from non-hair cells to the neighboring cells, and acts as an inducer of root hair formation. In contrast, we previously showed that the CPC homolog, ENHANCER OF TRY AND CPC1 (ETC1), does not move between the root epidermal cells. To clarify the critical difference in the cell-to-cell movement ability of CPC and ETC1 proteins, we generated five different chimeras of CPC and ETC1. As expected, four of the five chimeric proteins with substitution of CPC amino acids with those of ETC1 induced many root hair and no-trichome phenotype, like CPC. These chimeric proteins essentially maintained the cell-to-cell movement ability of CPC. However, one chimeric protein in which ETC1 was sandwiched between the CPC specific movement motifs of S1 and S2 did not induce ectopic root hair formation. This chimeric protein did not move between the cells. These results indicate that the maintenance of not only the S1 and S2 motifs but also the precise structure of CPC protein might be necessary for the cell-to-cell movement of CPC. Our results should help in further unraveling of the roles of these MYB transcription factors in root hair formation. PMID- 29337130 TI - An organizing role for the TGF-beta signaling pathway in axes formation of the annelid Capitella teleta. AB - Embryonic organizers are signaling centers that coordinate developmental events within an embryo. Localized to either an individual cell or group of cells, embryonic organizing activity induces the specification of other cells in the embryo and can influence formation of body axes. In the spiralian Capitella teleta, previous cell deletion studies have shown that organizing activity is localized to a single cell, 2d, and this cell induces the formation of the dorsal ventral axis and bilateral symmetry. In this study, we attempt to identify the signaling pathway responsible for the organizing activity of 2d. Embryos at stages when organizing activity is occurring were exposed to various small molecule inhibitors that selectively inhibited either the Activin/Nodal or the BMP branch of the TGF-beta signaling pathway. Embryos were then raised to larval stages, and scored for axial anomalies analogous to 2d ablated phenotypes. Our results show that interference with the Activin/Nodal pathway through a short three hour exposure to the inhibitor SB431542 results in larvae that lack bilateral symmetry and a detectable dorsal-ventral axis. However, interference with the BMP signaling pathway through exposure to the inhibitors DMH1 and dorsomorphin dihydrochloride does not appear to play a role in specification by 2d of the dorsal-ventral axis or bilateral symmetry. Our findings highlight species differences in how the molecular architecture of the conserved TGF-beta superfamily signaling pathway components was utilized to mediate the organizing activity signal during early spiralian development. PMID- 29337131 TI - Modelling non-Markovian fluctuations in intracellular biomolecular transport. AB - To model non-Markovian fluctuations arising in biomolecular transport, we introduce a stochastic process with memory where Brownian motion is modulated sinusoidally. The probability density function and moments of this non-Markovian process are evaluated analytically as Hida stochastic functional integrals. Comparison of graphs of computed variance vis-a-vis empirical data for protein diffusion coefficients closely match with both exhibiting emergent superdiffusive then subdiffusive behavior for longer proteins. PMID- 29337132 TI - Understanding pivotal experiences in behavior change for the design of technologies for personal wellbeing. AB - Most health technologies are designed to support people who have already decided to work toward better health. Thus, there remains an opportunity to design technologies to help motivate people who have not yet decided to make a change. Understanding the experiences of people who have already started to make a health behavior change and how they made a pivotal decision can be useful in understanding how to design such tools. In this paper, we describe results from data collected in 2 phases. Phase 1 consisted of 127 surveys and 13 interviews with adults who have already accomplished behavior change(s). Phase 2 consisted of 117 surveys and 12 interviews with adults who have either already accomplished their behavior change(s) or are currently working toward them. We identified four factors that lead to pivotal experiences: (1) prolonged discontent and desire to change, (2) significant changes that increase fear or hope of future, (3) increased understanding of one's behavior and personal data, and (4) social accountability. We also describe a design space for designing technology-based interventions for encouraging people to decide to make a change to improve their health. Based on feedback from participants, we discuss opportunities for further exploration of the design space for people who are not yet motivated to change and for ethical considerations for this type of intervention. PMID- 29337133 TI - Cathodal tDCS of the bilateral anterior temporal lobes facilitates semantically driven verbal fluency. AB - In a verbal fluency task, a person is required to produce as many exemplars of a given category (e.g., 'animals', or words starting with 'f') as possible within a fixed duration. Successful verbal fluency performance relies both on the depth of search within semantic/phonological neighborhoods ('clustering') and the ability to flexibly disengage between exhausted clusters ('switching'). Convergent evidence from functional imaging and neuropsychology suggests that cluster-switch behaviors engage dissociable brain regions. Switching has been linked to a frontoparietal network dedicated to executive functioning and controlled lexical retrieval, whereas clustering is more commonly associated with temporal lobe regions dedicated to semantic and phonological processing. Here we attempted to modulate cluster-switch dynamics among neurotypical adults (N = 24) using transcranial direct current stimulation (tDCS) delivered at three sites: a) anterior temporal cortex; b) frontal cortex; and c) temporoparietal cortex. Participants completed letter-guided and semantic category verbal fluency tasks pre/post stimulation. Cathodal stimulation of anterior temporal cortex facilitated the total number of words generated and the number of words generated within clusters during semantic category verbal fluency. These neuromodulatory effects were specific to stimulation of the one anatomical site. Our findings highlight the role of the anterior temporal lobes in representing semantic category structure and support the claim that clustering and switching behaviors have distinct substrates. We discuss implications both for theory and application to neurorehabilitation. PMID- 29337134 TI - Acetylcholine Receptor Antibody Titers and Clinical Course after Influenza Vaccination in Patients with Myasthenia Gravis: A Double-Blind Randomized Controlled Trial (ProPATIent-Trial). AB - BACKGROUND: It is a continuous matter of discussion whether immune activation by vaccination in general and Influenza vaccination in particular increases the risk for clinical deterioration of autoimmune diseases. This prospective study investigated the serological and clinical course of autoimmune Myasthenia gravis (MG) after a seasonal influenza vaccination. METHODS: This randomized, placebo controlled, double-blind study enrolled MG patients with antibodies against acetylcholine-receptors (AChR-ab). They were allocated to receive seasonal influenza vaccine or placebo. The primary endpoint was the relative change of AChR-ab-titer over 12weeks. A relative increase of 20% was set as non-inferiority margin. Secondary endpoints were clinical changes in the modified Quantitative Myasthenia Gravis Score (QMG), increase of anti-influenza-ELISA-antibodies, and changes of treatment. The study is registered with Clinicaltrialsregister.eu, EudraCT number 2006-004374-27. FINDINGS: 62 patients were included. Mean+/ standard deviation (median) in the vaccine and placebo group were AChR-ab-titer changes of -6.0%+/-23.3% (-4.0%) and -2.8%+/-22.0% (-0.5%) and QMG score changes of -0.08+/-0.27 (0.17) and 0.11+/-0.31 (0.00), respectively. The difference between groups (Hodges-Lehmann estimate with 95% CI) was - for the AChR-ab-titer change 4.0% [-13.3%, 4.5%] (p=0.28 for testing a difference, p<0.0001 for testing non-inferiority) and for the QMG change 0.00 [-0.17, 0.00] (p=0.79 for testing a difference). The occurrence of 74 adverse events (AE) was comparable between groups. The most common AE was flu-like symptoms. One serious AE (hospitalisation following gastrointestinal haemorrhage) in the verum group was not related to the vaccine. INTERPRETATION: Influenza vaccination in MG is safe. Uprating the potential risk of a severe course of MG exacerbation during influenza infection compared to the 95% CI differences for the endpoints, vaccination is principally indicated in this patient population. PMID- 29337135 TI - Defining Bedaquiline Susceptibility, Resistance, Cross-Resistance and Associated Genetic Determinants: A Retrospective Cohort Study. AB - BACKGROUND: Bedaquiline (BDQ) is a novel agent approved for use in combination treatment of multi-drug resistant tuberculosis (MDR-TB). We sought to determine BDQ epidemiological cut-off values (ECVs), define and assess interpretive criteria against putative resistance associated variants (RAVs), microbiological outcomes and cross resistance with clofazimine (CFZ). METHODS: A retrospective cohort study was conducted. Minimal inhibitory concentrations (MIC) to BDQ were determined using 7H9 broth microdilution (BMD) and MGIT960. RAVs were genetically characterised using whole genome sequencing. BDQ ECVs were determined using ECOFFinder and compared with 6-month culture conversion status and CFZ MICs. FINDINGS: A total of 391 isolates were analysed. Susceptible and intermediate categories were determined to have MICs of <=0.125MUg/ml and 0.25MUg/ml using BMD and <=1MUg/ml and 2MUg/ml using MGIT960 respectively. Microbiological failures occurred among BDQ exposed patients with a non-susceptible BDQ MIC, an Rv0678 mutation and <=2 active drug classes. The Rv0678 RAVs were not the dominant mechanism of CFZ resistance and cross resistance was limited to isolates with an Rv0678 mutation. INTERPRETATION: Criteria for BDQ susceptibility are defined and will facilitate improved early detection of resistance. Cross- resistance between BDQ and CFZ is an emerging concern but in this study was primarily among those with an Rv0678 mutation. PMID- 29337136 TI - As Extracellular Glutamine Levels Decline, Asparagine Becomes an Essential Amino Acid. AB - When mammalian cells are deprived of glutamine, exogenous asparagine rescues cell survival and growth. Here we report that this rescue results from use of asparagine in protein synthesis. All mammalian cell lines tested lacked cytosolic asparaginase activity and could not utilize asparagine to produce other amino acids or biosynthetic intermediates. Instead, most glutamine-deprived cell lines are capable of sufficient glutamine synthesis to maintain essential amino acid uptake and production of glutamine-dependent biosynthetic precursors, with the exception of asparagine. While experimental introduction of cytosolic asparaginase could enhance the synthesis of glutamine and increase tricarboxylic acid cycle anaplerosis and the synthesis of nucleotide precursors, cytosolic asparaginase suppressed the growth and survival of cells in glutamine-depleted medium in vitro and severely compromised the in vivo growth of tumor xenografts. These results suggest that the lack of asparaginase activity represents an evolutionary adaptation to allow mammalian cells to survive pathophysiologic variations in extracellular glutamine. PMID- 29337138 TI - Let-7 Suppresses B Cell Activation through Restricting the Availability of Necessary Nutrients. AB - The control of uptake and utilization of necessary extracellular nutrients glucose and glutamine-is an important aspect of B cell activation. Let-7 is a family of microRNAs known to be involved in metabolic control. Here, we employed several engineered mouse models, including B cell-specific overexpression of Lin28a or the let-7a-1/let-7d/let-7f-1 cluster (let-7adf) and knockout of individual let-7 clusters to show that let-7adf specifically inhibits T cell independent (TI) antigen-induced immunoglobulin (Ig)M antibody production. Both overexpression and deletion of let-7 in this cluster leads to altered TI-IgM production. Mechanistically, let-7adf suppresses the acquisition and utilization of key nutrients, including glucose and glutamine, through directly targeting hexokinase 2 (Hk2) and by repressing a glutamine transporter Slc1a5 and a key degradation enzyme, glutaminase (Gls), a mechanism mediated by regulation of c Myc. Our results suggest a novel role of let-7adf as a "metabolic brake" on B cell antibody production. PMID- 29337137 TI - Basal Mitophagy Occurs Independently of PINK1 in Mouse Tissues of High Metabolic Demand. AB - Dysregulated mitophagy has been linked to Parkinson's disease (PD) due to the role of PTEN-induced kinase 1 (PINK1) in mediating depolarization-induced mitophagy in vitro. Elegant mouse reporters have revealed the pervasive nature of basal mitophagy in vivo, yet the role of PINK1 and tissue metabolic context remains unknown. Using mito-QC, we investigated the contribution of PINK1 to mitophagy in metabolically active tissues. We observed a high degree of mitophagy in neural cells, including PD-relevant mesencephalic dopaminergic neurons and microglia. In all tissues apart from pancreatic islets, loss of Pink1 did not influence basal mitophagy, despite disrupting depolarization-induced Parkin activation. Our findings provide the first in vivo evidence that PINK1 is detectable at basal levels and that basal mammalian mitophagy occurs independently of PINK1. This suggests multiple, yet-to-be-discovered pathways orchestrating mammalian mitochondrial integrity in a context-dependent fashion, and this has profound implications for our molecular understanding of vertebrate mitophagy. PMID- 29337139 TI - Identification of yellow gene family in Agrotis ipsilon and functional analysis of Aiyellow-y by CRISPR/Cas9. AB - The yellow gene family has been identified in several model insects, but yellow genes were poorly identified in non-model insects and the functions of yellow genes are largely unknown. In this study, we identified seven yellow genes in an important agricultural pest Agrotis ipsilon. Each gene encodes a protein containing a major royal jelly domain. Phylogenetic analysis defined these genes as yellow-y, -b, -b2, -c, -d, -e, and -h, respectively. The A. ipsilon yellow genes yellow-b, -b2, and -c were stably expressed in all developmental stages and tissues analyzed, whereas the other four yellow genes had unique expression patterns, suggesting distinct physiological roles of each gene. Using the CRISPR/Cas9 system, we successfully disrupted yellow-y in A. ipsilon and obtained G0 insects with somatic mutations. Unlike the black of wild-type newly hatched larvae and of adults, the mutants were yellow, although in the pupal stage mutant coloration did not differ from wild-type coloration. This phenotype was inherited by G1 offspring. The G0 mutants did not show any growth deficiency compared with control insects; however, a dehydration-like phenotype was observed in newly hatched G1 larvae from sibling crossed mutants. Our results indicate that A. ipsilon yellow-y gene plays a role in body pigmentation and also might function in waterproofing. PMID- 29337140 TI - Characteristics and Prognostic Factors for Patients With HER2-overexpressing Breast Cancer and Brain Metastases in the Era of HER2-targeted Therapy: An Argument for Earlier Detection. AB - BACKGROUND: Although brain metastases (BM) are associated with poor prognosis, patients with human epidermal growth factor receptor 2 (HER2) overexpressing (HER2+) breast cancer (BC) with BM who are treated with anti-HER2 therapy have a relatively longer survival after BM diagnosis compared with other subtypes and HER2+ patients previously untreated with anti-HER2 therapy. It is unclear if previously reported prognostic factors are applicable to patients with HER2+ BC in the era of HER2-targeted therapy. PATIENTS AND METHODS: We evaluated 100 consecutive patients with HER2+ BC with BM who underwent radiation therapy as primary BM treatment from January 2001 to December 2011 at Memorial Sloan Kettering Cancer Center by retrospective review. Patient characteristics at the time of BM diagnosis and their associations with time from BM to death were evaluated by Kaplan-Meier curves, log-rank tests, and Cox proportional hazard models. RESULTS: Significantly better survival from BM was noted for patients with higher performance status, fewer BM lesions, continued use of HER2-targeted therapy after BM diagnosis, and better controlled extracranial metastatic disease. Absence of neurologic symptoms at BM diagnosis was significantly associated with fewer lesions, decreased use of whole brain radiotherapy, and longer survival in univariate and multivariate analysis (multivariate hazard ratio, 3.69; 95% confidence interval, 1.69-8.07). CONCLUSION: Our finding supports the continued use of HER2-targeted therapy after BM diagnosis. In addition, future research on the clinical impact of detecting asymptomatic BM in patients with HER2+ BC, in terms of improving prognosis, quality of life, and avoidance of whole brain radiotherapy, is warranted. PMID- 29337141 TI - Alterations of oxygen consumption and extracellular acidification rates by glutamine in PBMCs of SLE patients. AB - We evaluated plasma glutamine levels and basal mitochondrial oxygen consumption rate (mOCRB) and basal extracellular acidification rate (ECARB) of peripheral blood mononuclear cells (PBMCs) of systemic lupus erythematous (SLE) patients and healthy controls (HCs). Lower plasma glutamine levels correlated with higher SLE disease activity indexes (p=0.025). Incubated in DMEM containing 100mg/dL glucose, SLE-PBMCs displayed lower mOCRB (p=0.018) but similar ECARB (p=0.467) to those of HC-PBMCs, and their mOCRB got elevated (p<0.001) without altering ECARB (p=0.239) by supplementation with 2 or 4mM glutamine. We conclude that impaired mitochondrial respiration of SLE-PBMCs could be improved by glutamine under euglycemic condition. PMID- 29337143 TI - The role of Hedgehog-responsive fibroblasts in facial nerve regeneration. AB - BACKGROUND: Facial nerve paralysis is a significant cause of morbidity, affecting facial appearance, emotional expression, speech, oral competence, and vision. A more complete understanding of the complex cellular events required for successful nerve regeneration may reveal new therapeutic targets. The role of fibroblasts in regeneration, and the process by which the nerve reforms its three dimensional structure after a transection injury, are not fully understood. The Hedgehog signaling pathway has been shown to mediate nerve sheath formation during development. We therefore sought to characterize the role of Hedgehog responsive cells following transection of the facial nerve. METHODS: Two transgenic mouse lines with reporters for the downstream effector of Hedgehog signaling, Gli1, were used. The animals underwent a unilateral facial nerve transection injury, and the contralateral side served as a control. Facial nerves were analyzed via immunohistochemistry and immunofluorescence at predetermined time points as the facial nerve regenerated after the transection injury. RESULTS: There was a statistically significant increase in Gli1+ cells both at the site of injury and within the distal nerve segment over time. Gli1+ cells are fibroblasts within the nerve and appear to contribute to the reformation of the nerve sheath after injury. CONCLUSION: These findings describe a key signaling pathway by which fibroblasts participate in motor nerve regeneration. Fibroblasts that reside within the nerve respond to injury and may represent a novel therapeutic target in the context of facial nerve regeneration after transection injury. PMID- 29337144 TI - Early activation of Egr-1 promotes neuroinflammation and dopaminergic neurodegeneration in an experimental model of Parkinson's disease. AB - The progressive loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc) is one of the hallmarks of Parkinson's disease (PD). Neuroinflammation has been proposed to contributes to the progressive nature of the disease. Early growth response-1 (Egr-1), a zinc finger transcription factor, has been shown to have a crucial role in both neuronal death and the inflammatory response. However, whether and how Egr-1 is involved in the pathogenesis of PD has not been investigated. Using the subacute 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine (MPTP) mouse model of PD, we identified early peak induction of Egr-1 in the SNpc but not in the striatum. In situ immunofluorescent analysis showed that Egr-1 predominantly locates in the nuclei of nigral AldoC (+) astrocytes upon MPTP treatment. Genetic ablation of Egr-1 or inhibition of its transcriptional activity by Mithramycin A significantly suppresses the activation of both astrocytes and microglia, decreases proinflammatory cytokine expression, and protects dopaminergic cell bodies from degeneration in the SNpc. Taken together, these findings demonstrate that the induction of Egr-1 promotes neuroinflammation and dopaminergic cell body loss in the SNpc of MPTP-induced mouse model, suggesting an important role of astrocytic Egr-1 in neuroinflammation in PD. PMID- 29337142 TI - Express: A database of transcriptome profiles encompassing known and novel transcripts across multiple development stages in eye tissues. AB - Advances in sequencing have facilitated nucleotide-resolution genome-wide transcriptomic profiles across multiple mouse eye tissues. However, these RNA sequencing (RNA-seq) based eye developmental transcriptomes are not organized for easy public access, making any further analysis challenging. Here, we present a new database "Express" (http://www.iupui.edu/~sysbio/express/) that unifies various mouse lens and retina RNA-seq data and provides user-friendly visualization of the transcriptome to facilitate gene discovery in the eye. We obtained RNA-seq data encompassing 7 developmental stages of lens in addition to that on isolated lens epithelial and fibers, as well as on 11 developmental stages of retina/isolated retinal rod photoreceptor cells from publicly available wild-type mouse datasets. These datasets were pre-processed, aligned, quantified and normalized for expression levels of known and novel transcripts using a unified expression quantification framework. Express provides heatmap and browser view allowing easy navigation of the genomic organization of transcripts or gene loci. Further, it allows users to search candidate genes and export both the visualizations and the embedded data to facilitate downstream analysis. We identified total of >81,000 transcripts in the lens and >178,000 transcripts in the retina across all the included developmental stages. This analysis revealed that a significant number of the retina-expressed transcripts are novel. Expression of several transcripts in the lens and retina across multiple developmental stages was independently validated by RT-qPCR for established genes such as Pax6 and Lhx2 as well as for new candidates such as Elavl4, Rbm5, Pabpc1, Tia1 and Tubb2b. Thus, Express serves as an effective portal for analyzing pruned RNA-seq expression datasets presently collected for the lens and retina. It will allow a wild-type context for the detailed analysis of targeted gene-knockout mouse ocular defect models and facilitate the prioritization of candidate genes from Exome-seq data of eye disease patients. PMID- 29337145 TI - Interaction of DCF1 with ATP1B1 induces impairment in astrocyte structural plasticity via the P38 signaling pathway. AB - Astrocytes are known to regulate and support neuronal and synaptic functions. Changes in their size and morphology in mouse models result in mental retardation. However, the mechanism underlying these morphological changes remains unclear. In the present study, abnormal astrocyte morphology was found in the mouse brain following knockout of dendritic cell factor 1 (Dcf1). Immunoprecipitation-mass spectrometry (IP-Mass) identified that ATP1B1 is bound to DCF1, and co-immunoprecipitation and cell fluorescence further confirmed an interaction between these two proteins, with asparagine residue 266 of ATP1B1 being required for the interaction with DCF1. Moreover, Dcf1 knockout in mice resulted in upregulation of ATP1B1 expression in the hippocampus. Furthermore, DCF1 interaction with ATP1B1 in astrocytes impaired their structural plasticity. Ultimately, Dcf1 knockout increased glutamate release. Mechanism exploration proposed that Dcf1 knockout led to significantly perturbed expression of AMPA receptors (AMPARs) and induced morphological changes in astrocytes through the P38 signaling pathway. Our data shed light on the possible mechanisms underlying changes in astrocyte morphology and provide new avenues for the exploration of proteins involved in glutamate release. PMID- 29337146 TI - Apelin-13 attenuates ER stress-mediated neuronal apoptosis by activating Galphai/Galphaq-CK2 signaling in ischemic stroke. AB - Cerebral ischemia/reperfusion (I/R) injury-induced neuronal apoptosis contributes to the death and disability in patients with ischemic stroke. However, underlying mechanisms remain elusive and it lacks effective treatment. Here we reported that the expression of casein kinase 2 (CK2) was significantly reduced in brains of middle cerebral artery occlusion/reperfusion (MACO/R) model rats and oxygen glucose deprivation/reperfusion (OGD/R) model neurons, which was associated with the activation of eIF2-ATF4-CHOP signaling pathway, leading to neuronal apoptosis. Moreover, we found that apelin-13 significantly upregulated CK2 expression and inhibited eIF2-ATF4-CHOP activation, attenuating cerebral I/R injury-induced infarct and neuronal apoptosis in MACO/R model rats and OGD/R model neurons. Furthermore, we demonstrated that the rescue effect of apelin-13 on I/R injury-induced neuronal apoptosis was mediated by Galphai/Galphaq-CK2 dependent inhibition of eIF2-ATF4-CHOP activation. These data indicated cerebral I/R injury reduced CK2 expression and activated eIF2-ATF4-CHOP signaling contributing to neuronal apoptosis, and apelin-13 can activate Galphai/Galphaq CK2 signaling attenuating eIF2-ATF4-CHOP-mediated neuronal apoptosis. It provides a novel insight that not only apelin-13 but also CK2 agonists may have therapeutic potential for protecting neurons from I/R injury-induced apoptosis, facilitating post-stroke recovery. PMID- 29337147 TI - Neuronal PTEN deletion in adult cortical neurons triggers progressive growth of cell bodies, dendrites, and axons. AB - Deletion of the phosphatase and tensin (PTEN) gene in neonatal mice leads to enlargement of the cell bodies of cortical motoneurons (CMNs) in adulthood (Gutilla et al., 2016). Here, we assessed whether PTEN deletion in adult mice would trigger growth of mature neurons. PTEN was deleted by injecting AAV-Cre into the sensorimotor cortex of adult transgenic mice with a lox-P flanked exon 5 of the PTEN gene and Cre-dependent reporter gene tdTomato. PTEN-deleted CMN's identified by tdT expression and retrograde labeling with fluorogold (FG) were significantly enlarged four months following PTEN deletion, and continued to increase in size through the latest time intervals examined (12-15 months post deletion). Sholl analyses of tdT-positive pyramidal neurons revealed increases in dendritic branches at 6 months following adult PTEN deletion, and greater increases at 12 months. 12 months after adult PTEN deletion, axons in the medullary pyramids were significantly larger and G-ratios were higher. Mice with PTEN deletion exhibited no overt neurological symptoms and no seizures. Assessment of motor function on the rotarod and cylinder test revealed slight impairment of coordination with unilateral deletion; however, mice with bilateral PTEN deletion in the motor cortex performed better than controls on the rotarod at 8 and 10 months post-deletion. Our findings demonstrate that robust neuronal growth can be induced in fully mature cortical neurons long after the developmental period has ended and that this continuous growth occurs without obvious functional impairments. PMID- 29337148 TI - And Now, Death by Proton Pump Inhibitor? PMID- 29337149 TI - Just the FRAX: Management of Glucocorticoid-Induced Osteoporosis. PMID- 29337150 TI - Heptose 1,7-Bisphosphate Directed TIFA Oligomerization: A Novel PAMP-Recognizing Signaling Platform in the Control of Bacterial Infections. PMID- 29337151 TI - Development of the Enteric Nervous System: A Genetic Guide to the Perplexed. PMID- 29337152 TI - How to Obtain Training in Nutrition During the Gastroenterology Fellowship. PMID- 29337153 TI - Pancreatitis: A Tale of Two Proteases. PMID- 29337154 TI - Intraductal Papillary Mucinous Neoplasm as the Focus for Early Detection of Pancreatic Cancer. PMID- 29337155 TI - NVR 3-778 Plus Pegylated Interferon-alpha Treatment for Chronic Hepatitis B Viral Infections: Could 1 + 1 = 3? PMID- 29337156 TI - Nonceliac Gluten Sensitivity: What Is the Culprit? PMID- 29337157 TI - Update on the Use of Vonoprazan: A Competitive Acid Blocker. PMID- 29337159 TI - Colonoscopy Risks: What Is Known and What Are the Next Steps? PMID- 29337160 TI - Response to "XPA is primarily cytoplasmic but is transported into the nucleus upon UV damage". PMID- 29337161 TI - Cellular redox, cancer and human papillomavirus. AB - High-risk Human Papillomavirus (HR-HPV) is the causative agent of different human cancers. A persistent HR-HPV infection alters several cellular processes involved in cell proliferation, apoptosis, immune evasion, genomic instability and transformation. Cumulative evidence from past studies indicates that HR-HPV proteins are associated with oxidative stress (OS) and has been proposed as a risk factor for cancer development. Reactive oxygen and nitrogen species (RONS) regulate a plethora of processes inducing cellular proliferation, differentiation and death. Oxidative stress (OS) is generated when an imbalance in the redox state occurs due to deregulation of the oxidant and antioxidant systems, which, in turn, promotes the damage of DNA, proteins and lipids, allowing the accumulation of mutations and genome instability. OS has been associated with the establishment and development of different cancers, and it has recently been proposed as a co-factor in cervical cancer development. This review is focused on evidence regarding the association of OS with HR-HPV proteins, and the interplay of the viral proteins with different elements of the antioxidant and DNA damage response (DDR) systems, emphasizing the processes that might be required for the viral life cycle and viral DNA integration into the host genome, which is a key element in the carcinogenic process induced by HR-HPV. PMID- 29337162 TI - Antiviral activity of K22 against members of the order Nidovirales. AB - Recently, a novel antiviral compound (K22) that inhibits replication of a broad range of animal and human coronaviruses was reported to interfere with viral RNA synthesis by impairing double-membrane vesicle (DMV) formation (Lundin et al., 2014). Here we assessed potential antiviral activities of K22 against a range of viruses representing two (sub)families of the order Nidovirales, the Arteriviridae (porcine reproductive and respiratory syndrome virus [PRRSV], equine arteritis virus [EAV] and simian hemorrhagic fever virus [SHFV]), and the Torovirinae (equine torovirus [EToV] and White Bream virus [WBV]). Possible effects of K22 on nidovirus replication were studied in suitable cell lines. K22 concentrations significantly decreasing infectious titres of the viruses included in this study ranged from 25 to 50 MUM. Reduction of double-stranded RNA intermediates of viral replication in nidovirus-infected cells treated with K22 confirmed the anti-viral potential of K22. Collectively, the data show that K22 has antiviral activity against diverse lineages of nidoviruses, suggesting that the inhibitor targets a critical and conserved step during nidovirus replication. PMID- 29337163 TI - Utility of ultra-deep sequencing for detection of varicella-zoster virus antiviral resistance mutations. AB - We report the first application of ultra-deep sequencing (UDS) to varicella zoster virus (VZV) genotypic antiviral testing in a case of acyclovir-resistant VZV infection initially detected by Sanger sequencing within a deeply immunocompromised heart transplant recipient. As added-value compared to Sanger analysis, UDS revealed complex dynamics of viral population under antiviral pressure. Varicella-zoster virus (VZV) is a ubiquitous human herpesvirus affecting populations worldwide. VZV is commonly acquired in youth whose primary infection usually manifests as benign varicella (chickenpox). After the initial infection, the virus establishes lifelong latency in sensory ganglia leading to a risk of subsequent reactivation. Reactivation usually results in the development of localized herpes zoster (HZ) lesions, a painful skin rash commonly known as shingles (Cohen, 2013). The incidence and severity of HZ increase with impaired specific cell-mediated immunity mainly as a result of increasing age, malignancy, immunodeficiency, organ transplantation, or immunosuppressive drug therapy (Cohen, 2013; Koo et al., 2014; Pavlopoulou et al., 2015). In particular, HZ remains a significant cause of morbidity among solid organ transplant (SOT) recipients, especially in patients undergoing heart transplantation (HT) compared with liver, kidney, or lung transplant recipients (Carby et al., 2007; Koo et al., 2014; Pavlopoulou et al., 2015). These particular individuals are at increased risk of primary infection, reactivation followed by dissemination with visceral involvement and associated with bacterial superinfection, and chronic recurrences (Cohen, 2013). VZV infections may also engender debilitating neuralgia among highly immunocompromised patients (Sampathkumar et al., 2009). HT is also associated with the risk of reactivation of other latent viruses belonging to the Herpesviridae family as herpes simplex virus (HSV). Currently licensed drugs to prevent or to cure HSV- or VZV-associated diseases target the viral DNA polymerase (Pol). Acyclovir (ACV) and its prodrug valacyclovir (VACV) are considered as the first-line therapy, whereas foscarnet (FOS) or cidofovir (CDV) constitute alternative options. After primophosphorylation by the viral thymidine kinase (TK), ACV targets the viral DNA polymerase and inhibits the viral genome replication by a chain termination mechanism. According to this mechanism of action, viral mutations conferring resistance to ACV have been mapped both in TK and Pol encoding genes. Viral mutations conferring resistance to FOS and CDV are only detected in Pol gene. VZV ACV-resistance is mostly mediated by TK alterations, consisting in either translational frameshifts, sometimes associated with premature stop codon, or amino acid substitutions. In the remaining cases, amino acid substitutions are detected within Pol (De et al., 2015; Piret and Boivin, 2014). Classically, Sanger sequencing has been recognized as the gold standard for the detection of drug resistance mutations (DRMs) within VZV TK and Pol genes (Perrier et al., 2016; Piret and Boivin, 2014). However, this approach cannot detect minor variants present at a frequency below 20%. Ultra-deep sequencing (UDS) has an enhanced sensitivity compared to Sanger method and allows quantitative evaluation of the viral mutants (Chin et al., 2013). We report here a case of VZV resistant infection in an HT recipient. Our retrospective study aimed at showing the utility of UDS for DRM detection as a complement of Sanger method. PMID- 29337164 TI - Identification of novel antivirals inhibiting recognition of Venezuelan equine encephalitis virus capsid protein by the Importin alpha/beta1 heterodimer through high-throughput screening. AB - Although the alphavirus Venezuelan equine encephalitis virus (VEEV) has been the cause of multiple outbreaks resulting in extensive human and equine mortality and morbidity, there are currently no anti-VEEV therapeutics available. VEEV pathogenicity is largely dependent on targeting of the viral capsid protein (CP) to the host cell nucleus through the nuclear transporting importin (Imp) alpha/beta1 heterodimer. Here we perform a high-throughput screen, combined with nested counterscreens to identify small molecules able to inhibit the Impalpha/beta1:CP interaction for the first time. Several compounds were able to significantly reduce viral replication in infected cells. Compound G281-1564 in particular could inhibit VEEV replication at low MUM concentration, while showing minimal toxicity, with steady state and dynamic quantitative microscopic measurements confirming its ability to inhibit CP nuclear import. This study establishes the principle that inhibitors of CP nucleocytoplasmic trafficking can have potent antiviral activity against VEEV, and represents a platform for future development of safe anti-VEEV compounds with high efficacy and specificity. PMID- 29337165 TI - Establishment of intracellular tenofovir-diphosphate as the key determinant for in vitro-in vivo translation of antiviral efficacy. AB - In vitro evaluation of tenofovir disproxil fumarate (TDF) and tenofovir alafenamide (TAF) revealed comparable antiviral effects with respect to the tenofovir-diphosphate (TFV-DP) level in human peripheral blood mononuclear cells (PBMCs), despite the EC50 values determined based on prodrug concentrations were nearly two orders of magnitude apart. In vivo EC50 obtained from meta-analyses were in good agreement with the in vitro results, indicating intracellular TFV-DP can be employed for in vitro-in vivo translation of viral inhibition for tenofovir prodrugs. Current analysis indicated that the intracellular concentrations of TFV-DP achieving maximal antiviral effect in vitro can be directly translatable in the clinic to accomplish maximal viral load suppression attainable by tenofovir-prodrugs. PMID- 29337166 TI - CD163 knockout pigs are fully resistant to highly pathogenic porcine reproductive and respiratory syndrome virus. AB - Porcine reproductive and respiratory syndrome virus (PRRSV) causes severe economic losses to current swine production worldwide. Highly pathogenic PRRSV (HP-PRRSV), originated from a genotype 2 PRRSV, is more virulent than classical PRRSV and further exacerbates the economic impact. HP-PRRSV has become the predominant circulating field strain in China since 2006. CD163 is a cellular receptor for PRRSV. The depletion of CD163 whole protein or SRCR5 region (interaction site for the virus) confers resistance to infection of several PRRSV isolates in pigs or cultured host cells. In this study, we described the generation of a CD163 knockout (KO) pig in which the CD163 protein was ablated by using CRISPR/Cas9 gene targeting and somatic cell nuclear transfer (SCNT) technologies. Challenge with HP-PRRSV TP strain showed that CD163 KO pigs are completely resistant to viral infection manifested by the absence of viremia, antibody response, high fever or any other PRRS-associated clinical signs. By comparison, wild-type (WT) controls displayed typical signs of PRRSV infection and died within 2 weeks after infection. Deletion of CD163 showed no adverse effects to the macrophages on immunophenotyping and biological activity as hemoglobin-haptoglobin scavenger. The results demonstrated that CD163 knockout confers full resistance to HP-PRRSV infection to pigs without impairing the biological function associated with the gene. PMID- 29337167 TI - Prognostic Factors for Survival Outcome of High-Grade Multicentric Glioma. AB - OBJECTIVE: The purpose of this study was to perform a survival analysis of patients with high-grade multicentric gliomas and to assess the influence of various prognostic factors on overall survival (OS). METHODS: A literature search on PubMed and Web of Science was performed for literature in English published from 1880 to October 2017. Detailed information including demographics, clinical characteristics, treatments, critical events, and time to events for survival analysis were extracted from the included articles. RESULTS: A total of 73 cases from 25 published articles were selected for analysis. Univariate analysis showed the surgery (SB/SR), age (<54/>=54 years), radiotherapy (Y/N), and suprainfratentorial gliomas (Y/N) had significant correlations with OS. Multivariate analysis showed that age, surgery, and radiotherapy were independent prognostic factors. Univariate and multivariate analysis revealed radiotherapy and radiotherapy combined with chemotherapy were independent prognostic factors for surgical patients' OS. CONCLUSIONS: This comprehensive analysis of multicentric glioma patients revealed that age younger than 54 years, surgical resection, and radiotherapy were significantly associated with improved survival and were independent prognostic factors for OS. Radiotherapy and radiotherapy combined with chemotherapy were independent prognostic factors for surgical patients' OS as well. PMID- 29337168 TI - Aggressive Resection of Congenital Lumbosacral Lipomas in Adults: Indications, Techniques, and Outcomes in 122 Patients. AB - OBJECTIVE: The authors reviewed the treatment of adult patients with congenital intraspinal lipomas with total/near-total resection and discussed their preoperative characteristics, prognostic factors, and surgical outcomes. METHODS: Medical records of 122 adult patients with congenital lumbosacral lipomas undergoing total/near-total resection were systematically analyzed. The cohort was subdivided into 3 groups depending on symptom onset age: group 1 (<=5 years, n = 40), group 2 (>5 years but <18 years, n = 33), and group 3 (>18 years, n = 49). Preoperative and postoperative neurologic status were compared between groups and analyzed as a whole. RESULTS: The most common symptom was bladder dysfunction (82.0%), followed by constipation (76.2%). At the 3-month follow-up, improvement was noted in most patients presenting with pain (87.2%) and neuropathic ulcers (70.0%). Overall, neurologic status was improved in 73.0% of patients and stabilized in 19.7% of patients. A binary logistic regression model identified shorter preoperative duration (P = 0.013) and preoperative pain (P = 0.005) as independent predictors of postoperative improvement. Neurosurgical complications developed in 16 patients, and wound complications occurred in 2 patients. Two of 3 patients who had recurred symptoms underwent repeated detethering surgery during long-term follow-up. CONCLUSIONS: Despite longer preoperative duration than the pediatric population, adult patients with lumbosacral lipomas can still benefit from total/near-total resection especially regarding pain and foot ulcers, with low surgery-related morbidity. The long-term advantage of resecting additional lipoma in adults remains a point of discussion. PMID- 29337170 TI - Virtual Cerebral Aneurysm Clipping with Real-Time Haptic Force Feedback in Neurosurgical Education. AB - OBJECTIVE: Realistic, safe, and efficient modalities for simulation-based training are highly warranted to enhance the quality of surgical education, and they should be incorporated in resident training. The aim of this study was to develop a patient-specific virtual cerebral aneurysm-clipping simulator with haptic force feedback and real-time deformation of the aneurysm and vessels. METHODS: A prototype simulator was developed from 2012 to 2016. Evaluation of virtual clipping by blood flow simulation was integrated in this software, and the prototype was evaluated by 18 neurosurgeons. In 4 patients with different medial cerebral artery aneurysms, virtual clipping was performed after real-life surgery, and surgical results were compared regarding clip application, surgical trajectory, and blood flow. RESULTS: After head positioning and craniotomy, bimanual virtual aneurysm clipping with an original forceps was performed. Blood flow simulation demonstrated residual aneurysm filling or branch stenosis. The simulator improved anatomic understanding for 89% of neurosurgeons. Simulation of head positioning and craniotomy was considered realistic by 89% and 94% of users, respectively. Most participants agreed that this simulator should be integrated into neurosurgical education (94%). Our illustrative cases demonstrated that virtual aneurysm surgery was possible using the same trajectory as in real-life cases. Both virtual clipping and blood flow simulation were realistic in broad based but not calcified aneurysms. Virtual clipping of a calcified aneurysm could be performed using the same surgical trajectory, but not the same clip type. CONCLUSIONS: We have successfully developed a virtual aneurysm-clipping simulator. Next, we will prospectively evaluate this device for surgical procedure planning and education. PMID- 29337171 TI - Is Early Tracheostomy Better for Severe Traumatic Brain Injury? A Meta-Analysis. AB - BACKGROUND: Tracheostomy has proven benefits for patients requiring prolonged mechanical ventilation. However, whether early tracheostomy (ET; <10 days after injury) can also improve outcomes in patients with severe traumatic brain injury (TBI) (Glasgow Coma Scale score <=8) remains controversial. The aim of this study was to clarify this question. METHODS: We searched 4 databases (PubMed, Web of Science, Elsevier ScienceDirect, and Cochrane Library) for articles comparing the outcomes of ET with late tracheotomy or prolonged intubation in patients with severe TBI. Two reviewers were asked to record the major outcome data as follows: length of intensive care unit (ICU) stay, duration of mechanical ventilation, mortality, and incidence of pneumonia. Both random-effects and fixed-effects models were used. RESULTS: Eight studies met our inclusion criteria, with a total of 797 patients in the ET group and 871 patients in the late tracheostomy or prolonged intubation (not-ET) group. A meta-analysis of these 8 studies suggested that ET could reduce the length of ICU stay (mean difference [MD], -3.08; 95% confidence interval [CI], -3.75 to -2.41), duration of mechanical ventilation (MD, -4.92; 95% CI, -6.82 to -3.02), length of hospital stay (MD, -4.79; 95% CI, 8.63 to -0.94), and incidence of pneumonia (odds ratio [OR], 0.64; 95% CI, 0.53 0.78), but seemed to be independent of mortality (OR, 1.25; 95% CI, 0.90-1.75). CONCLUSIONS: The available evidence suggests that ET may reduce the length of ICU and hospital stays, duration of mechanical ventilation, and incidence of pneumonia in patients with severe TBI. Well-designed randomized controlled trials are needed to confirm these findings. PMID- 29337169 TI - The Prognostic Roles of Gender and O6-Methylguanine-DNA Methyltransferase Methylation Status in Glioblastoma Patients: The Female Power. AB - BACKGROUND: Clinical and molecular factors are essential to define the prognosis in patients with glioblastoma (GBM). O6-methylguanine-DNA methyltransferase (MGMT) methylation status, age, Karnofsky Performance Status (KPS), and extent of surgical resection are the most relevant prognostic factors. Our investigation of the role of gender in predicting prognosis shows a slight survival advantage for female patients. METHODS: We performed a prospective evaluation of the Project of Emilia Romagna on Neuro-Oncology (PERNO) registry to identify prognostic factors in patients with GBM who received standard treatment. RESULTS: A total of 169 patients (99 males [58.6%] and 70 females [41.4%]) were evaluated prospectively. MGMT methylation was evaluable in 140 patients. Among the male patients, 36 were MGMT methylated (25.7%) and 47 were unmethylated (33.6%); among the female patients, 32 were methylated (22.9%) and 25 were unmethylated (17.9%). Survival was longer in the methylated females compared with the methylated males (P = 0.028) but was not significantly different between the unmethylated females and the unmethylated males (P = 0.395). In multivariate analysis, gender and MGMT methylation status considered together (methylated females vs. methylated males; hazard ratio [HR], 0.459; 95% confidence interval [CI], 0.242-0.827; P = 0.017), age (HR, 1.025; 95% CI, 1.002-1.049; P = 0.032), and KPS (HR, 0.965; 95% CI, 0.948-0.982; P < 0.001) were significantly correlated with survival. CONCLUSIONS: Survival was consistently longer among MGMT methylated females compared with males. Gender can be considered as a further prognostic factor. PMID- 29337173 TI - Improving bystander defibrillation for out-of-hospital cardiac arrest: Capability, opportunity and motivation. PMID- 29337172 TI - Organ support therapy in the intensive care unit and return to work in out-of hospital cardiac arrest survivors-A nationwide cohort study. AB - AIM: With increased survival after out-of-hospital cardiac arrest (OHCA), impact of the post-resuscitation course has become important. Among 30-day OHCA survivors, we investigated associations between organ support therapy in the Intensive Care Unit (ICU) and return to work. METHODS: This Danish nationwide cohort-study included 30-day-OHCA-survivors who were employed prior to arrest. We linked OHCA data to information on in-hospital care and return to work. For patients admitted to an ICU and based on renal replacement therapy (RRT), cardiovascular support and mechanical ventilation, we assessed the prognostic value of organ support therapies in multivariable Cox regression models. RESULTS: Of 1087 30-day survivors, 212 (19.5%) were treated in an ICU with 0-1 types of organ support, 494 (45.4%) with support of two organs, 26 (2.4%) with support of three organs and 355 (32.7%) were not admitted to an ICU. Return to work increased with decreasing number of organs supported, from 53.8% (95% CI: 49.5 70.1%) in patients treated with both RRT, cardiovascular support and mechanical ventilation to 88.5% (95% CI: 85.1-91.8%) in non-ICU-patients. In 732 ICU patients, ICU-patients with support of 3 organs had significantly lower adjusted hazard ratios (HR) of returning to work (0.50 [95% CI: 0.30-0.85] compared to ICU patients with support of 0-1 organ. The corresponding HR was 0.48 [95% CI: 0.30 0.78] for RRT alone. CONCLUSIONS: In 30-day survivors of OHCA, number of organ support therapies and in particular need of RRT were associated with reduced rate of return to work, although more than half of these latter patients still returned to work. PMID- 29337174 TI - Palliative care utilization following out-of-hospital cardiac arrest in the United States. AB - AIMS: Palliative care (PC) has become an integral component of comprehensive care provided to critically ill patients. Little is known about the utilization of palliative care following Out-of-Hospital Cardiac Arrest (OHCA) in the United States. METHODS: We used the 2002-2013 National Inpatient Sample database to identify adults >=18 years old with an ICD-9-CM principal diagnosis code of cardio-respiratory arrest or ventricular fibrillation (VF). Patients were categorized into two groups based on the presence of PC, then compared using Pearson chi2 test for categorical variables and linear regression for continuous variables. Multiple linear and logistic regression models were conducted to identify factors associated with PC, and temporal trends in PC utilization. RESULTS: Of the 154,177 patients hospitalized with OHCA in the U.S, 11,260 (7.3%) had PC consultations during hospitalization. PC Utilization increased from 1.5% in 2002 to 16.7% in 2013 (P-trend < 0.001). Patients who received Palliative care were older (mean age 70.7 +/- 0.3 vs 65.9 +/- 0.1), more likely to be female (45.8% vs 40.5%), and had higher Charlson comorbidity index >=2 (55.8% vs 46.8%). In adjusted analyses, older age, female gender, Caucasian race, higher Charlson comorbidity index, multiorgan failure, metastatic cancer, non-shockable rhythm, admission to larger, urban and teaching hospitals were all associated with higher PC utilization. CONCLUSION: We observed significant increase in the utilization of palliative care consultations following OHCA over the study period. This was influenced by multiple patient and hospital factors. Further investigations are needed to identify the appropriate cost-effective use of palliative care following cardiac arrest. PMID- 29337175 TI - Minimally invasive versus extensile lateral approach for sanders type II and III calcaneal fractures: A meta-analysis of randomized controlled trials. AB - BACKGROUND: The use of less-invasive techniques in the treatment of displaced intra-articular calcaneal fractures (DIACFs) remains controversial. No prior meta analysis has considered the influence of differences in the fracture type. Thus, our meta-analysis aimed to investigate the efficacy and safety of minimally invasive (MI) in Sanders type II and III fractures. MATERIALS AND METHODS: A comprehensive search was performed to identify RCTs comparing MI using sinus tarsi approach (STA) or percutaneous reduction (PR) to open reduction (OR) via extensile lateral approach (ELA) from the Cochrane Library, PubMed, Embase and CNKI. Dichotomous and continuous data were pooled using risk ratio (RR) and mean difference (MD), respectively, with 95% confidence intervals (CIs). The data were analysed using Review Manager 5.3. RESULTS: Eight RCTs (495 participants) were selected in our meta-analysis. Based on the American Orthopaedic Foot and Ankle Society score (AOFAS), both general pooled data and subgroup analysis of Sanders type II fractures indicated that MI improves functional outcomes, while in the Sanders type III subgroup, the advantage disappeared. Additionally, the pooled results showed that MI reduces the rate of wound complications; lowers the VAS score; and shortens the time to surgery, duration of surgery and length of hospital stay. There was no statistical significance with respect to recovery of calcaneus length and width or improvement of Gissane's angle and Bohler's angle. CONCLUSION: Our meta-analysis suggests that MI and ELA are equally effective treating Sanders type II and III fractures. However, MI is effective in improving the AOFAS score (Sanders type II); reducing the rate of wound complications; and shortening the time to surgery, duration of surgery and length of hospital stay. PMID- 29337176 TI - Comparison of the diagnostic performances of ultrasonography, CT and fine needle aspiration cytology for the prediction of lymph node metastasis in patients with lymph node dissection of papillary thyroid carcinoma: A retrospective cohort study. AB - PURPOSE: To evaluate the diagnostic performances of ultrasonographic (US) findings, computed tomography (CT) findings and fine needle aspiration cytology (FNAC) for the prediction of cervical lymph node (LN) metastases of papillary thyroid carcinoma (PTC) to determine which LN should be dissected. METHODS: 376 LNs in 302 patients who underwent both US-guided skin surface LN markings and CT before LN dissection were analyzed retrospectively. Indications for LN dissection were suspicious US findings of LN metastases (n = 300), suspicious CT findings (n = 67) or surgeon's request (n = 9). Diagnostic performances of US, CT and FNAC (including thyroglobulin (Tg)) were evaluated. The correlations of suspicious US, CT finding or malignant FNAC with the size, number and the presence of extranodal extension of metastatic LNs were analyzed. RESULTS: US indication of LN dissection was significantly correlated with malignancy (p < .0001). Values of area under the curve of highly suspicious US findings and FNAC+Tg were significantly higher than that of CT (0.786, 0.878, 0.585, p < .0001, respectively). Suspicious US, CT findings and malignant FNAC+Tg were significantly associated with the largest size of metastatic LNs (p = .003, p = .0003, and p = .0006, respectively) and total number of metastatic LNs (p = .007, p = .038, and p = .005, respectively). CONCLUSION: The diagnostic performance of US or FNAC was superior to CT and highly suspicious US findings could be complimentary to FNAC results in predicting LN metastases of PTC. LN dissection should be performed for the LNs with any suspicious US findings or malignant FNAC results rather than LNs with only suspicious CT findings. PMID- 29337177 TI - Laparoscopic versus open pancreatectomy for pancreatic ductal adenocarcinoma: A systematic review and meta-analysis. AB - BACKGROUND: Laparoscopic pancreatic surgery (LPS) has been widely used in the treatment of benign and low-grade pancreatic diseases. It is necessary to expand the current knowledge on the feasibility and safety of LPS for pancreatic ductal adenocarcinoma (PDAC) by systematic reviewing the published studies and analyzing them by meta-analysis. METHODS: Original articles compared LPS with open pancreatic surgery (OPS) for PDAC, published from January 1994 to August 2017 were searched in medical databases. Postoperative pancreatic fistula (POPF), morbidity, mortality, operation time, blood loss, transfusion, hospital stay, retrieved lymph nodes (RLNs), and survival outcomes were compared. RESULTS: Fourteen studies with a total of 13174 patients (1705 in LPS and 11469 in OPS) were included for the meta-analysis. LPS showed less morbidity (RR = 0.78, 95%CI: 0.66-0.92, P < .01), blood loss (WMD = -298.05 ml, 95% CI, -482.98~-113.12 ml; P < .01), shorter hospital stay (WMD = -2.86, 95%CI, -3.85~-1.87; P < .01), more RLNs (WMD = 1.47, 95%CI: 0.15-2.78; P = .03) and comparable POPF (RR = 1.12, 95%CI: 0.82-1.53, P = .50), operation time (WMD = 22.23 min; 95%CI: -19.56-64.01, P = .30), and 5-year overall survival (HR = 0.92, 95%CI: 0.80-1.06; P = .23) compared to OPS. CONCLUSION: LPS can be performed safely in carefully selected patients with PADC and would improve the surgical outcomes. Considering the limitation of study design, the conclusions should be interpret cautiously and warrant to be confirmed by randomized controlled studies. PMID- 29337178 TI - Multifocality as a prognostic factor in thyroid cancer: A meta-analysis. AB - BACKGROUND: Thyroid cancer is one of the most common endocrine cancers whose incidence has been steadily increasing. Previous studies have suggested that multifocality in thyroid cancer is associated with poor prognosis. The present study aims to quantify the data on multifocality as a factor indicating poor prognosis by meta-analysis. METHODS: A systematic search was carried out using the electronic databases PubMed and Medline. We searched for articles containing keywords of multifocality and thyroid cancer, as well as risk factors and prognostic factors for thyroid cancer (Lymph node metastases, extrathyroidal extension, distant metastases, disease recurrence, Age, tumour size. and gender). Data sets containing hazard ratios and odds ratios were then compared. RESULTS: The meta-analysis was performed using a total of 21 articles, showed that multifocality is associated with an increased risk of development of LNM (12 Studies: OR = 1.87; 95% CI = 1.51-2.32; I2 = 49.11; p-value = .03), Extrathyroidal extension (15 Studies: OR = 3.18; 95% CI = 0.69-14.71; I2 = 95.62; p-value <.001), Tumour Size > 1 cm (3 Studies: OR = 2.75; 95% CI = 1.95-3.89; I2 = 0.00 and p-value = .88) and disease recurrence (5 Studies: HR = 2.81; 95% CI = 1.07-7.36; I2 = 95.85; p-value < .001). Risk factors that did not significantly contribute to a higher incidence of multifocality include Age >45, Male Gender. CONCLUSIONS: Multifocality in thyroid cancer is a significant risk factor for disease progression and increases the risk of disease recurrence. The present study suggests that patients who have multifocal disease should therefore be managed more aggressively from an operative and post-operative perspective. PMID- 29337179 TI - Surgical treatment of recurrent varicose veins in the lower limbs associated with endovascular treatment of iliac vein stenosis. AB - OBJECTIVE: We present our experience with endovascular surgery for recurrent varicose veins (RVV) of the lower limbs combined with the iliac vein compression syndrome (IVCS). MATERIALS AND METHODS: This study was a retrospective analysis of 6 patients with RVVs combined with IVCS who were admitted to our hospital between January 2007 and December 2014. Transfemoral venography was performed to confirm IVCS. Balloon dilation and stent placement were successful in all 6 patients. The varicose veins were treated by traditional surgery after the endovascular therapy. The visual analog pain scale (VAS) score and venous clinical severity score (VCSS) were collected before surgery and at 6-months follow-up, and were analyzed using the paired student t-test. Patency of the iliac vein was assessed via duplex Doppler ultrasound. RESULTS: The rate of technical success was 100%. There was a significant (p < .001) improvement in VCSS postoperatively. During the 6-month follow-up period, no RVVs were observed and the rate of iliac vein patency was 100%. Importantly, VAS ratings also decreased significantly (p < .001) during the follow-up. CONCLUSION: Endovascular surgery for IVCS combined with traditional surgery focused on varicose veins is an effective procedure for treating RVVs of the lower limbs associated with IVCS within 6 months. PMID- 29337180 TI - Impact of an acute surgical unit in appendicectomy outcomes: A systematic review and meta-analysis. AB - BACKGROUND: The provision of emergency general surgical services is undergoing a paradigm shift towards a consultant led, patient centered model in order to improve patient outcomes. The aim of this current study is to use meta-analytical techniques to assess the efficacy of acute surgical unit (ASU) in appendectomy. METHODS: A meta-analysis was conducted according to the PRISMA guidelines. A comprehensive literature search of PubMed, Embase and Scopus for published studies comparing ASU and traditional (TRAD) model on appendectomy outcomes was performed. Random-effects methods were used to analyze key outcomes with data presented as odds ratio (OR) with 95% confidence interval (CI). RESULTS: Fourteen comparative studies describing outcomes in 7980 patients were identified, 4258 patients were included in the ASU model (53.4%). ASU model had a shorter time to theatre (WMD: -0.40, 95% CI: -0.65 to 0.15, p: 0.002), length of hospital stay (WMD: -0.25, 95% CI: -0.46 to -0.05, p: 0.02) and complication rate (OR: 0.76, 95% CI: 0.59 to 0.99, p: 0.04) for appendectomy patients. ASU model did not significantly affect night time operating (OR: 1.04, 95% CI: 0.66 to 1.65, p: 0.86) negative appendectomy rates (OR: 0.98, 95% CI: 0.77-1.27, p: 0.91) or conversion rate (OR: 1.45, 95% CI: 0.70 to 2.98, p: 0.32). CONCLUSION: ASU model improves outcomes and quality of care in patients undergoing emergency appendectomy without any adverse implications. PMID- 29337182 TI - Human Pancreatic Tumor Organoids Reveal Loss of Stem Cell Niche Factor Dependence during Disease Progression. AB - Despite recent efforts to dissect the inter-tumor heterogeneity of pancreatic ductal adenocarcinoma (PDAC) by determining prognosis-predictive gene expression signatures for specific subtypes, their functional differences remain elusive. Here, we established a pancreatic tumor organoid library encompassing 39 patient derived PDACs and identified 3 functional subtypes based on their stem cell niche factor dependencies on Wnt and R-spondin. A Wnt-non-producing subtype required Wnt from cancer-associated fibroblasts, whereas a Wnt-producing subtype autonomously secreted Wnt ligands and an R-spondin-independent subtype grew in the absence of Wnt and R-spondin. Transcriptome analysis of PDAC organoids revealed gene-expression signatures that associated Wnt niche subtypes with GATA6 dependent gene expression subtypes, which were functionally supported by genetic perturbation of GATA6. Furthermore, CRISPR-Cas9-based genome editing of PDAC driver genes (KRAS, CDKN2A, SMAD4, and TP53) demonstrated non-genetic acquisition of Wnt niche independence during pancreas tumorigenesis. Collectively, our results reveal functional heterogeneity of Wnt niche independency in PDAC that is non-genetically formed through tumor progression. PMID- 29337181 TI - A Non-canonical BCOR-PRC1.1 Complex Represses Differentiation Programs in Human ESCs. AB - Polycomb group proteins regulate self-renewal and differentiation in many stem cell systems. When assembled into two canonical complexes, PRC1 and PRC2, they sequentially deposit H3K27me3 and H2AK119ub histone marks and establish repressive chromatin, referred to as Polycomb domains. Non-canonical PRC1 complexes retain RING1/RNF2 E3-ubiquitin ligases but have unique sets of accessory subunits. How these non-canonical complexes recognize and regulate their gene targets remains poorly understood. Here, we show that the BCL6 co repressor (BCOR), a member of the PRC1.1 complex, is critical for maintaining primed pluripotency in human embryonic stem cells (ESCs). BCOR depletion leads to the erosion of Polycomb domains at key developmental loci and the initiation of differentiation along endoderm and mesoderm lineages. The C terminus of BCOR regulates the assembly and targeting of the PRC1.1 complex, while the N terminus contributes to BCOR-PRC1.1 repressor function. Our findings advance understanding of Polycomb targeting and repression in ESCs and could apply broadly across developmental systems. PMID- 29337183 TI - Temporal Layering of Signaling Effectors Drives Chromatin Remodeling during Hair Follicle Stem Cell Lineage Progression. AB - Tissue regeneration relies on resident stem cells (SCs), whose activity and lineage choices are influenced by the microenvironment. Exploiting the synchronized, cyclical bouts of tissue regeneration in hair follicles (HFs), we investigate how microenvironment dynamics shape the emergence of stem cell lineages. Employing epigenetic and ChIP-seq profiling, we uncover how signal dependent transcription factors couple spatiotemporal cues to chromatin dynamics, thereby choreographing stem cell lineages. Using enhancer-driven reporters, mutagenesis, and genetics, we show that simultaneous BMP-inhibitory and WNT signals set the stage for lineage choices by establishing chromatin platforms permissive for diversification. Mechanistically, when binding of BMP effector pSMAD1 is relieved, enhancers driving HF-stem cell master regulators are silenced. Concomitantly, multipotent, lineage-fated enhancers silent in HF-stem cells become activated by exchanging WNT effectors TCF3/4 for LEF1. Throughout regeneration, lineage enhancers continue reliance upon LEF1 but then achieve specificity by accommodating additional incoming signaling effectors. Barriers to progenitor plasticity increase when diverse, signal-sensitive transcription factors shape LEF1-regulated enhancer dynamics. PMID- 29337184 TI - When drugs plasticize film coatings: Unusual formulation effects observed with metoprolol and Eudragit RS. AB - Metoprolol tartrate and metoprolol free base loaded pellet starter cores were coated with Eudragit RS, plasticized with 25% triethyl citrate (TEC). The initial drug loading and coating level were varied from 10 to 40 and 0 to 20%, respectively. Drug release was measured in 0.1 N HCl and phosphate buffer pH 7.4. The water uptake and swelling kinetics, mechanical properties and TEC leaching of/from coated pellets and/or thin, free films of identical composition as the film coatings were monitored. The following unusual tendencies were observed: (i) the relative drug release rate from coated pellets increased with increasing initial drug content, and (ii) drug release from pellets was much faster for metoprolol free base compared to metoprolol tartrate, despite its much lower solubility (factor >70). These phenomena could be explained by plasticizing effects of the drug for the polymeric film coatings. In particular: 1) Metoprolol free base is a much more potent plasticizer for Eudragit RS than the tartrate, leading to higher film permeability and overcompensating the pronounced differences in drug solubility. Also, Raman imaging revealed that substantial amounts of the free base migrated into the film coatings, whereas this was not the case for the tartrate. 2) The plasticizing effects of the drug for the film coating overcompensated potential increasing limited solubility effects when increasing the initial drug loading from 10 to 40%. In summary, this study clearly demonstrates how important the plasticization of polymeric controlled release film coatings by drugs can be, leading to unexpected formulation effects. PMID- 29337185 TI - Proliposome tablets manufactured using a slurry-driven lipid-enriched powders: Development, characterization and stability evaluation. AB - Proliposome powders were prepared via a slurry method using sorbitol or D mannitol as carbohydrate carriers in 1:10 or 1:15 w/w lipid phase to carrier ratios. Soya phosphatidylcholine (SPC) and cholesterol were employed as a lipid phase and Beclometasone dipropionate (BDP) was incorporated as a model drug. Direct compaction using a Minipress was applied on the lipid-enriched powder in order to manufacture proliposome tablets. Sorbitol-based proliposome tablets in a 1:15 w/w ratio were found to be the best formulation as it exhibited excellent powder flowability with an angle of repose of 25.62 +/- 1.08 degrees , and when compacted the resultant tablets had low friability (0.20 +/- 0.03%), appropriate hardness (crushing strength) (120.67 +/- 12.04 N), short disintegration time (5.85 +/- 0.66 min), and appropriate weight uniformity. Moreover, upon hydration into liposomes, the entrapment efficiency for sorbitol formulations in both 1:10 and 1:15 lipid to carrier ratios were significantly higher (53.82 +/- 6.42% and 57.43 +/- 9.12%) than D-mannitol formulations (39.90 +/- 4.30% and 35.22 +/- 6.50%), respectively. Extended stability testing was conducted for 18 months, at three different temperature conditions (Fridge Temperature (FT; 6 degrees C), Room Temperature (RT; 22 degrees C) and High Temperature (HT; 40 degrees C)) for sorbitol-based proliposome tablets (1:15 w/w ratio). Volume median diameter (VMD) and zeta potential significantly changed from 5.90 +/- 0.70 um to 14.79 +/- 0.79 um and from -3.08 +/- 0.26 mV to -11.97 +/- 0.26 mV respectively at month 18, when samples were stored under HT conditions. Moreover, the entrapment efficiency of BDP decreased from 57.43 +/- 9.12% to 17.93 +/- 5.37% following 18 months storage under HT conditions. Overall, in this study for the first time, proliposome tablets were manufactured and thoroughly characterized, and sorbitol showed to be a promising carrier. PMID- 29337186 TI - Lipoprotein Signal Peptidase Inhibitors with Antibiotic Properties Identified through Design of a Robust In Vitro HT Platform. AB - As resistance to antibiotics increases, the exploration of new targets and strategies to combat pathogenic bacteria becomes more urgent. Ideal protein targets are required for viability across many species, are unique to prokaryotes to limit effects on the host, and have robust assays to quantitate activity and identify inhibitors. Lipoprotein signal peptidase (Lsp) is a transmembrane aspartyl protease required for lipoprotein maturation and comprehensively fits these criteria. Here, we have developed the first in vitro high-throughput assay to monitor proteolysis by Lsp. We employed our high-throughput screen assay against 646,275 compounds to discover inhibitors of Lsp and synthesized a range of analogs to generate molecules with nanomolar half maximal inhibitory concentration values. Importantly, our inhibitors are effective in preventing the growth of E. coli cultures in the presence of outer-membrane permeabilizer PMBN and should facilitate development of antibacterial agents with a novel mechanism of action to treat antibiotic-resistant bacteria. PMID- 29337187 TI - Metabolomics Reveals that Dietary Xenoestrogens Alter Cellular Metabolism Induced by Palbociclib/Letrozole Combination Cancer Therapy. AB - Recently, the palbociclib/letrozole combination therapy was granted accelerated US FDA approval for the treatment of estrogen receptor (ER)-positive breast cancer. Since the underlying metabolic effects of these drugs are yet unknown, we investigated their synergism at the metabolome level in MCF-7 cells. As xenoestrogens interact with the ER, we additionally aimed at deciphering the impact of the phytoestrogen genistein and the estrogenic mycotoxin zearalenone. A global metabolomics approach was applied to unravel metabolite and pathway modifications. The results clearly showed that the combined effects of palbociclib and letrozole on cellular metabolism were far more pronounced than that of each agent alone and potently influenced by xenoestrogens. This behavior was confirmed in proliferation experiments and functional assays. Specifically, amino acids and central carbon metabolites were attenuated, while higher abundances were observed for fatty acids and most nucleic acid-related metabolites. Interestingly, exposure to model xenoestrogens appeared to counteract these effects. PMID- 29337189 TI - A well-circumscribed lobulated tumor on the hard palatal mucosa in a child. PMID- 29337188 TI - Abrogation of Fam20c altered cell behaviors and BMP signaling of immortalized dental mesenchymal cells. AB - FAM20C mutations compromise the mineralization of skeleton and tooth in both human and mouse. Putatively, the mineralization disorder is attributed to the elevated fibroblast growth factor 23 (FGF23), which reduced the serum phosphorus by suppressing the reabsorption of phosphorus in kidney. Besides the regulation on systemic phosphorus homeostasis, FAM20C was also implicated to regulate cell behaviors and gene expression through a cell-autonomous manner. To identify the primary effects of Fam20c on dental mesenchymal cells, mouse Fam20c-deficient dental mesenchymal cells were generated by removing the floxed alleles from the immortalized mouse Fam20cf/f dental mesenchymal cells with Cre-expressing lentivirus. The removal of Fam20c exerted no impact on cell morphology, but suppressed the proliferation and mobility of the dental mesenchymal cells. Fam20c deficiency also significantly reduced the expression of Osterix, Runx2, type I Collagen a 1 (Col1a1), Alkaline phosphatase (Alpl) and the members of the small integrin-binding ligand, N-linked glycoprotein (SIBLING) family, but increased Fgf23 expression. Consistently, the in vitro mineralization of Fam20c-deficient dental mesenchymal cells was severely disabled. However, supplements of the non collagenous proteins from wild type rat dentin failed to rescue the compromised mineralization, suggesting that the roles of FAM20C in tooth mineralization are more than phosphorylating local matrices and regulating systemic phosphorus metabolism. Moreover, the down-regulated BMP signaling pathways in the Fam20c deficient dental mesenchymal cells revealed that the kinase activity of FAM20C might be required to maintain BMP signaling. In summary, our study discloses that Fam20c indeed regulates cell behaviors and cell signaling pathway in a cell autonomous manner. PMID- 29337191 TI - The classification of azodicarbonamide (ADCA) as a respiratory sensitiser; adding to the weight of evidence. PMID- 29337190 TI - Binding of ferredoxin to algal photosystem I involves a single binding site and is composed of two thermodynamically distinct events. AB - Despite the impressive progress made in recent years in understanding the early steps in charge separation within the photosynthetic reaction centers, our knowledge of how ferredoxin (Fd) interacts with the acceptor side of photosystem I (PSI) is not as well developed. Fd accepts electrons after transiently docking to a binding site on the acceptor side of PSI. However, the exact location, as well as the stoichiometry, of this binding have been a matter of debate for more than two decades. Here, using Isothermal Titration Calorimetry (ITC) and purified components from wild type and mutant strains of the green algae Chlamydomonas reinhardtii we show that PSI has a single binding site for Fd, and that the association consists of two distinct binding events, each with a specific association constant. PMID- 29337192 TI - Combining machine learning models of in vitro and in vivo bioassays improves rat carcinogenicity prediction. AB - In vitro genotoxicity bioassays are cost-efficient methods of assessing potential carcinogens. However, many genotoxicity bioassays are inappropriate for detecting chemicals eliciting non-genotoxic mechanisms, such as tumour promotion, this necessitates the use of in vivo rodent carcinogenicity (IVRC) assays. In silico IVRC modelling could potentially address the low throughput and high cost of this assay. We aimed to develop and combine computational QSAR models of novel bioassays for the prediction of IVRC results and compare with existing software. QSAR models were generated from existing Ames (n = 6512), Syrian Hamster Embryonic (SHE, n = 410), ISSCAN rodent carcinogenicity (ISC, n = 834) and GreenScreen GADD45a-GFP (n = 1415) chemical datasets. These models mapped the molecular descriptors of each compound to their respective assay result using machine learning algorithms (adaboost, k-Nearest Neighbours, C.45 Decision Tree, Multilayer Perceptron, Random Forest). The best performing models were combined with k-Nearest Neighbours to create a cascade model for IVRC prediction. High QSAR model performance was observed from ten time 10-fold cross-validation with above 80% accuracy and 0.85 AUC for each assay dataset. The cascade model predicted rat carcinogenicity with 69.3% accuracy and 0.700 AUC. This study demonstrates the novelty of a combined approach for IVRC prediction, with higher performance than existing software. PMID- 29337193 TI - IL-1beta augments H2S-induced increase in intracellular Ca2+ through polysulfides generated from H2S/NO interaction. AB - H2S has excitatory and inhibitory effects on Ca2+ signals via transient receptor potential ankyrin 1 (TRPA1) and ATP-sensitive K+ channels, respectively. H2S converts intracellularly to polysulfides, which are more potent agonists for TRPA1 than H2S. Under inflammatory conditions, changes in the expression and activity of these H2S target channels and/or the conversion of H2S to polysulfides may modulate H2S effects. Effects of proinflammatory cytokines on H2S-induced Ca2+ signals and polysulfide production in RIN14B cells were examined using fluorescence imaging with fura-2 and SSP4, respectively. Na2S, a H2S donor, induced 1) the inhibition of spontaneous Ca2+ signals, 2) inhibition followed by [Ca2+]i increase, and 3) rapid [Ca2+]i increase without inhibition in 50% (23/46), 22% (10/46), and 17% (8/46) of cells tested, respectively. IL-1beta augmented H2S-induced [Ca2+]i increases, which were inhibited by TRPA1 and voltage-dependent L-type Ca2+ channel blockers. However, IL-1beta treatment did not affect [Ca2+]i increases evoked by a TRPA1 agonist or high concentration of KCl. Na2S increased intracellular polysulfide levels, which were enhanced by IL 1beta treatment. A NOS inhibitor suppressed the increased polysulfide production and [Ca2+]i increase in IL-1beta-treated cells. These results suggest that IL 1beta augments H2S-induced [Ca2+]i increases via the conversion of H2S to polysulfides through NO synthesis, but not via changes in the activity and expression of target channels. Polysulfides may play an important role in the effects of H2S during inflammation. PMID- 29337194 TI - Fasudil ameliorates the ischemia/reperfusion oxidative injury in rat hearts through suppression of myosin regulatory light chain/NADPH oxidase 2 pathway. AB - Fasudil is a potent Rho-kinase (ROCK) inhibitor and can relax smooth muscle or cardiac muscle contraction through decreasing the phosphorylation level of myosin regulatory light chain (p-MLC20 or p-MLC2v), while p-MLC2v can function as a transcription factor to promote the NADPH oxidase 2 (NOX2) expression in rat hearts subjected to ischemia/reperfusion (I/R). This study aims to explore whether fasudil can protect the rat hearts against I/R oxidative injury through suppressing NOX2 expression via reduction of p-MLC2v level. The SD rat hearts were subjected to 1h-ischemia plus 3h-reperfusion, which showed myocardial injuries (myocardial fiber loss and disarray, increase of creatine kinase release and myocardial infarction/apoptosis), increase in ROCK activity and nuclear p MLC2v level concomitant with up-regulation of NOX2 and H2O2 production; these phenomena were attenuated by fasudil in a dose-dependent manner. Next, we verified the cardioprotective effect of fasudil and the underlying mechanisms in hypoxia-reoxygenation (H/R) -treated H9c2 cells. Consistent with the results in vivo, the H/R-treated H9c2 cells showed cellular injury (increase in apoptotic ratio), elevation in ROCK activity and nuclear p-MLC2v level, accompanied by up regulation of NOX2 and H2O2 production; these effects were blocked in the presence of fasudil in a dose-dependent way. Based on these observations, we conclude that beneficial effect of fasudil against myocardial I/R or H/R oxidative injury is related to the suppression of NOX2 expression through decrease of the p-MLC2v level. Our findings also highlight that intervention of MLC2v phosphorylation by drugs may provide a novel strategy to protect heart from I/R oxidative injury. PMID- 29337195 TI - Secretoneurin suppresses cardiac hypertrophy through suppression of oxidant stress. AB - The neuropeptide secretoneurin (SN) plays protective roles in myocardial ischemia. In the present study, the effect of SN in cardiac hypertrophy was investigated. We observed that, in isoproterenol (ISO) treatment induced cardiac or cardiomyocytes hypertrophy, a marked increase in the expression of endogenous SN in mouse plasma, myocardium and primary-cultured cardiomyocytes occurs. In hypertrophic mice, the heart size, heart weight/body weight (HW/BW) ratio, cardiomyocyte size, and atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) expression were significantly higher than those in controls but were effectively suppressed by SN gene therapy. Similarly, the protective effects of SN were also observed in cultured cardiomyocytes following ISO treatment. SN significantly increased the activity of catalase and superoxide dismutase (SOD) in parallel with the decrease in reactive oxygen species levels in cardiomyocytes. We observed that SN evoked the activation of all of the AMPK, P38/MAPK and ERK/MAPK pathways in cardiomyocytes, but pretreatment with only AMPK inhibitor (compound C) and ERK1/2/MAPK inhibitor (PD98059) counteracted the protective effects of SN against cardiomyocyte hypertrophy and the suppressive effects of SN on oxidant stress in cardiomyocytes. These results indicated that endogenous SN is induced in hypertrophic cardiomyocytes, and may play a protective role in the pathogenesis of cardiac hypertrophy. These results suggest that exogenous SN supplementation protects the cardiac hypertrophy induced by ISO treatment through the activation of AMPK and ERK/MAPK pathways, thus upregulating antioxidants and suppressing oxidative stress. PMID- 29337196 TI - Nicorandil and theophylline can protect experimental rats against complete Freund's adjuvant-induced rheumatoid arthritis through modulation of JAK/STAT/RANKL signaling pathway. AB - Signaling pathways are interesting fields of study of pathogenesis and treatment trials. We elucidated the possible protective effects of nicorandil (15mg/kg/day) and theophylline (20mg/kg/day) on experimentally-induced RA, focusing on the role of JAK (Janus Kinase) / STAT (Signal Transducer and Activator of Transcription) / RANKL (Receptor Activator of Nuclear factor-Kappa B Ligand) / cytokine signaling pathway. Four sets of experiments were performed. First, effect of test agents on normal animals was evaluated. Second, effect of test agents was evaluated on Complete Freund's Adjuvant (CFA; 0.3ml, s.c.)-induced RA to investigate anti arthritic effect. Third, effect of test agents was evaluated on growth hormone (GH; 2mg/kg/day, s.c.)-induced stimulation of JAK/STAT/RANKL/cytokine signaling pathway to investigate the role of this signaling pathway in their anti-arthritic effect. Fourth, the effect of test agents was performed on CFA/GH-induced RA. To fulfill this purpose, serum anti-citrullinated peptide antibody (ACPA), interleukin-6 (IL-6), and cartilage oligomeric matrix protein (COMP), together with tissue JAK2, STAT3, RANKL, inducible and endothelial nitric oxide synthases (iNOS and eNOS) as well as macrophage inflammatory protein (MIP1alpha) were estimated using ELISA, Western blotting and PCR techniques, confirmed by a histopathological study. Test agents significantly corrected JAK2, STAT3, RANKL and IL-6 values in animals receiving GH. Additionally, test agents could correct ACPA, IL-6, COMP, JAK2, STAT3, RANKL, iNOS, eNOS and MIP1alpha levels compared with the respective CFA or CFA/GH controls. These results conclude that nicorandil and theophylline have good anti-arthritic effects related to modulation of JAK/STAT/RANKL signaling pathway. Further clinical trials are claimed. PMID- 29337197 TI - Brain perfusion alterations in tick-borne encephalitis-preliminary report. AB - BACKGROUND: Magnetic resonance imaging (MRI) changes in tick-borne encephalitis (TBE) are non-specific and the pathophysiological mechanisms leading to their formation remain unclear. This study investigated brain perfusion in TBE patients using dynamic susceptibility-weighted contrast-enhanced magnetic resonance perfusion imaging (DSC-MRI perfusion). METHODS: MRI scans were performed for 12 patients in the acute phase, 3-5days after the diagnosis of TBE. Conventional MRI and DSC-MRI perfusion studies were performed. Cerebral blood flow (CBF), cerebral blood volume (CBV), mean transit time (MTT), and time to peak (TTP) parametric maps were created. The bilateral frontal, parietal, and temporal subcortical regions and thalamus were selected as regions of interest. Perfusion parameters of TBE patients were compared to those of a control group. RESULTS: There was a slight increase in CBF and CBV, with significant prolongation of TTP in subcortical areas in the study subjects, while MTT values were comparable to those of the control group. A significant increase in thalamic CBF (p<0.001) and increased CBV (p<0.05) were observed. Increased TTP and a slight reduction in MTT were also observed within this area. CONCLUSIONS: The DSC-MRI perfusion study showed that TBE patients had brain perfusion disturbances, expressed mainly in the thalami. These results suggest that DSC-MRI perfusion may provide important information regarding the areas affected in TBE patients. PMID- 29337198 TI - Comparison of untagged and his-tagged dihydrodipicolinate synthase from the enteric pathogen Vibrio cholerae. AB - Given the emergence of multi drug resistant Vibrio cholerae strains, there is an urgent need to characterize new anti-cholera targets. One such target is the enzyme dihydrodipicolinate synthase (DHDPS; EC 4.3.3.7), which catalyzes the first committed step in the diaminopimelate pathway. This pathway is responsible for the production of two key metabolites in bacteria and plants, namely meso-2,6 diaminopimelate and L-lysine. Here, we report the cloning, expression and purification of untagged and His-tagged recombinant DHDPS from V. cholerae (Vc DHDPS) and provide comparative structural and kinetic analyses. Structural studies employing circular dichroism spectroscopy and analytical ultracentrifugation demonstrate that the recombinant enzymes are folded and exist as dimers in solution. Kinetic analyses of untagged and His-tagged Vc-DHDPS show that the enzymes are functional with specific activities of 75.6 U/mg and 112 U/mg, KM (pyruvate) of 0.14 mM and 0.15 mM, KM (L-aspartate-4-semialdehyde) of 0.08 mM and 0.09 mM, and kcat of 34 and 46 s-1, respectively. These results demonstrate there are no significant changes in the structure and function of Vc DHDPS upon the addition of an N-terminal His tag and, hence, the tagged recombinant product is suitable for future studies, including screening for new inhibitors as potential anti-cholera agents. Additionally, a polyclonal antibody raised against untagged Vc-DHDPS is validated for specifically detecting recombinant and native forms of the enzyme. PMID- 29337199 TI - Designing an intuitive web application for drug discovery scientists. AB - We discuss how we designed the Open Targets Platform (www.targetvalidation.org), an intuitive application for bench scientists working in early drug discovery. To meet the needs of our users, we applied lean user experience (UX) design methods: we started engaging with users very early and carried out research, design and evaluation activities within an iterative development process. We also emphasize the collaborative nature of applying lean UX design, which we believe is a foundation for success in this and many other scientific projects. PMID- 29337200 TI - Mimicking the 3D biology of osteochondral tissue with microfluidic-based solutions: breakthroughs towards boosting drug testing and discovery. AB - The development of tissue-engineering (TE) solutions for osteochondral (OC) regeneration has been slowed by technical hurdles related to the recapitulation of their complex and hierarchical architecture. OC defects refer to damage of both the articular cartilage and the underlying subchondral bone. To repair an OC tissue defect, the complexity of the bone and cartilage must be considered. To help achieve this, microfluidics is converging with TE approaches to provide new treatment possibilities. Microfluidics uses precise micrometer-to-millimeter scale fluid flows to achieve high-resolution and spatial and/or temporal control of the cell microenvironment, providing powerful tools for cell culturing. Herein, we overview the progress of microfluidics for developing 3D in vitro models of OC tissue, with a focus on cancer bone metastasis. PMID- 29337201 TI - On the glycosylation aspects of biosimilarity. AB - The recent expiration of several protein therapeutics opened the door for biosimilar development. Biosimilars are biologic medical products that are similar but not identical copies of already-authorized protein therapeutics. Critical quality attributes (CQA), such as post-translational modifications of recombinant biotherapeutics, are important for the clinical efficacy and safety of both the innovative biologics and their biosimilar counterparts. Here, we summarize biosimilarity CQAs, considering the regulatory guidelines and the statistical aspects (e.g., biosimilarity index) and then discuss glycosylation as one of the important attributes of biosimilarity. Finally, we introduced the 'Glycosimilarity Index', which is based on the averaged biosimilarity criterion. PMID- 29337202 TI - Progress with covalent small-molecule kinase inhibitors. AB - With reduced risk of toxicity and high selectivity, covalent small-molecule kinase inhibitors (CSKIs) have emerged rapidly. Through the lens of structural system pharmacology, here we review this rapid progress by considering design strategies and the challenges and opportunities offered by current CSKIs. PMID- 29337203 TI - Stem cells as vehicles and targets of nanoparticles. AB - Modulation of endogenous adult stem cell niches represents a promising strategy for regeneration of tissues and to correct cell abnormalities, including cancer. Recent advances show the possibility to target endogenous stem cells or their progenies by using nanoparticles conjugated with specific biomolecules. In addition, the targeting of the stem cell niche can be accomplished by using stem cells loaded with nanoparticles. This review examines principles for the targeting of endogenous stem cells as well as factors for the modulation of stem cells. PMID- 29337204 TI - The positive impacts of Real-World Data on the challenges facing the evolution of biopharma. AB - Demand for healthcare services is unprecedented. Society is struggling to afford the cost. Pricing of biopharmaceutical products is under scrutiny, especially by payers and Health Technology Assessment agencies. As we discuss here, rapidly advancing technologies, such as Real-World Data (RWD), are being utilized to increase understanding of disease. RWD, when captured and analyzed, produces the Real-World Evidence (RWE) that underpins the economic case for innovative medicines. Furthermore, RWD can inform the understanding of disease, help identify new therapeutic intervention points, and improve the efficiency of research and development (R&D), especially clinical trials. Pursuing precompetitive collaborations to define shared requirements for the use of RWD would equip service-providers with the specifications needed to implement cloud based solutions for RWD acquisition, management and analysis. Only this approach would deliver cost-effective solutions to an industry-wide problem. PMID- 29337205 TI - Increasing mtDNA levels as therapy for mitochondrial optic neuropathies. AB - Leber hereditary optic neuropathy (LHON) is a rare, inherited mitochondrial disease. No treatment has shown a clear-cut benefit on a clinically meaningful end-point. Primary open-angle glaucoma (POAG) is a frequent, acquired optic neuropathy. Lowering intraocular pressure (IOP) reduces disease progression. However, current methods to decelerate this progression are recognized as being inadequate. Therefore, there is a clear need to look for new therapeutic approaches. The growing evidence indicates that POAG can also be a mitochondrial optic neuropathy (MON). Several risk elements are common for both diseases and all of them decrease mitochondrial (mt)DNA content. Based on these susceptibility factors and their molecular mechanism, we suggest herein pharmacological therapies targeted to increase mtDNA levels, oxidative phosphorylation (OXPHOS) capability, and mitochondrial energy production as treatments for MONs. PMID- 29337206 TI - Evolution of the POU1F1 transcription factor in mammals: Rapid change of the alternatively-spliced beta-domain. AB - The POU1F1 (Pit-1) transcription factor is important in regulating expression of growth hormone, prolactin and TSH beta-subunit, and controlling development of the anterior pituitary cells in which these hormones are produced. POU1F1 is a conserved protein comprising three main domains, an N-terminal transcription activation domain (TAD), a POU-specific domain and a C-terminal homeodomain. Within the TAD, a beta-domain can be inserted by alternative splicing, giving an extended 'beta-variant' with altered properties. Here sequence data from over 100 species were used to assess the variability of POU1F1 in mammals. This showed that the POU-specific domain and homeodomain are very strongly conserved, and that the TAD is somewhat less conserved, as are linker and hinge regions between these main domains. On the other hand, the beta-domain is very variable, apparently evolving at a rate not significantly different from that expected for unconstrained, neutral evolution. In several species stop and/or frameshift mutations within the beta-domain would prevent expression of the beta-variant as a functional protein. In most species expression of the beta-variant is low (<5% of total POU1F1 expression). The rate of evolution of POU1F1 in mammals shows little variation, though the lineage leading to dog does show an episode of accelerated change. This comparative genomics study suggests that in most mammalian species POU1F1 variants produced by alternative splicing may have little physiological significance. PMID- 29337207 TI - Intrasexual competition mediates the relationship between men's testosterone and mate retention behavior. AB - Previous research has established a link between testosterone concentrations in males and their mating effort as it relates to their mate seeking behaviors. However, very little research has analyzed how variability in basal testosterone concentration of males affects their mating effort once they have secured a romantic partner. In a sample of undergraduate men, the relationship between testosterone, intrasexual competitiveness, and mate retention behavior was examined. Results showed that higher basal testosterone predicted more self reported mate retention effort. This relationship was mediated by intrasexual competitiveness, such that high T men reported more intrasexual competitiveness, which when included in the model predicted mate retention, and reduced the initial T - mate retention relationship to statistical non-significance. When examined separately, this mediation effect applied specifically to cost inflicting, rather than benefit-provisioning, mate retention behavior. These are the first findings to link T to mate retention effort and to identify intrasexual competitiveness as a mechanism which might account for this relationship. PMID- 29337208 TI - Quantum Mechanics predicts evolutionary biology. AB - Nowhere are the shortcomings of conventional descriptive biology more evident than in the literature on Quantum Biology. In the on-going effort to apply Quantum Mechanics to evolutionary biology, merging Quantum Mechanics with the fundamentals of evolution as the First Principles of Physiology-namely negentropy, chemiosmosis and homeostasis-offers an authentic opportunity to understand how and why physics constitutes the basic principles of biology. Negentropy and chemiosmosis confer determinism on the unicell, whereas homeostasis constitutes Free Will because it offers a probabilistic range of physiologic set points. Similarly, on this basis several principles of Quantum Mechanics also apply directly to biology. The Pauli Exclusion Principle is both deterministic and probabilistic, whereas non-localization and the Heisenberg Uncertainty Principle are both probabilistic, providing the long-sought after ontologic and causal continuum from physics to biology and evolution as the holistic integration recognized as consciousness for the first time. PMID- 29337209 TI - The role of d-allo-isoleucine in the deposition of the anti-Leishmania peptide bombinin H4 as revealed by 31P solid-state NMR, VCD spectroscopy, and MD simulation. AB - Bombinin H4 is an antimicrobial peptide that was isolated from the toad Bombina variegata. Bombinin H family peptides are active against gram-positive, gram negative bacteria, and fungi as well as the parasite Leishmania. Among them, bombinin H4 (H4), which contains d-allo-isoleucine (d-allo-Ile) as the second residue in its sequence, is the most active, and its l-isomer is bombinin H2 (H2). H4 has a significantly lower LC50 than H2 against Leishmania. However, the atomic-level mechanism of the membrane interaction and higher activity of H4 has not been clarified. In this work, we investigated the behavior of the conformations and interactions of H2 and H4 with the Leishmania membrane using 31P solid-state nuclear magnetic resonance (NMR), vibrational circular dichroism (VCD) spectroscopy, and molecular dynamics (MD) simulations. The generation of isotropic 31P NMR signals depending on the peptide concentration indicated the abilities of H2 and H4 to exert antimicrobial activity via membrane disruption. The VCD experiment and density functional theory calculation confirmed the different stability and conformations of the N-termini of H2 and H4. MD simulations revealed that the N-terminus of H4 is more stable than that of H2 in the membrane, in line with the VCD experiment data. VCD and MD analyses demonstrated that the first l-Ile and second d-allo-Ile of H4 tend to take a cis conformation. These residues function as an anchor and facilitate the easy winding of the helical conformation of H4 in the membrane. It may assist to quickly reach to the threshold concentration of H4 on the Leishmania membrane. This article is part of a Special Issue entitled: d-Amino acids: biology in the mirror, edited by Dr. Loredano Pollegioni, Dr. Jean-Pierre Mothet and Dr. Molla Gianluca. PMID- 29337210 TI - Rate of Urologic Injury with Robotic Hysterectomy. AB - STUDY OBJECTIVE: To evaluate rates of urologic injury in patients who underwent robotic hysterectomy compared with laparoscopic, vaginal, and open hysterectomy. DESIGN: A retrospective analysis (Canadian Task Force classification II-2). SETTING: Henry Ford Health System, 2013 to 2016. PATIENTS: Women who underwent robotic, vaginal, laparoscopic, and open abdominal hysterectomy. INTERVENTIONS: Robotic hysterectomy, laparoscopic-assisted vaginal hysterectomy, total laparoscopic hysterectomy, laparoscopic supracervical hysterectomy, vaginal hysterectomy, and abdominal hysterectomy. MEASUREMENTS AND MAIN RESULTS: To identify patients with urologic injury, a departmental database for quality improvement was searched for reported urologic injuries. In addition, patients who had urology consultation within 90 days of hysterectomy were screened for injury. A total of 3114 hysterectomies were identified by retrospective chart review. One thousand eighty-eight robotic, 782 laparoscopic, 304 vaginal, and 940 abdominal hysterectomies were analyzed for urologic complications. A total of 27 injuries were confirmed (7 during laparoscopic hysterectomy, 10 during robotic hysterectomy, 1 during vaginal hysterectomy, and 9 during abdominal hysterectomy). The overall rate of urologic injury was 0.87% with a 0.55% risk of bladder injury and a 0.32% risk of injury to the ureter. When the route of hysterectomy was taken into account, the risk of urologic injury was 0.92% for robotic hysterectomy, 0.90% for laparoscopic hysterectomy, 0.33% for vaginal hysterectomy, and 0.96% for open hysterectomy. The mean body mass index (BMI) for all patients was 32.7 kg/m2; injured patients had a mean BMI of 34.6 kg/m2, and noninjured patients had a mean BMI of 32.0 kg/m2 (p = .10). CONCLUSION: Rates of urologic injury with robotic hysterectomy are similar to those of laparoscopic hysterectomy in our population. BMI was not significantly different in patients who had urologic injuries. Surgeon volume was not associated with risk for urologic injury. PMID- 29337211 TI - Extraperitoneal Para-Aortic Lymphadenectomy by Robot-Assisted Laparoscopy. AB - STUDY OBJECTIVE: To evaluate the outcomes of extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy. DESIGN: A retrospective study (Canadian Task Force classification III). SETTING: An academic institution. PATIENTS: Twenty-three consecutive patients with gynecologic cancer who presented for para-aortic lymphadenectomy between March 2016 and May 2017 were reviewed retrospectively. INTERVENTIONS: Extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was performed. MEASUREMENTS AND MAIN RESULTS: Of the 23 patients reviewed retrospectively, 10 had cervical cancer, 7 had endometrial cancer, 5 had adnexal cancer, and 1 had vaginal cancer. Data regarding patient characteristics, indication for para-aortic lymphadenectomy, type of surgery (infrarenal or inframesenteric), operative time, surgical complications, number of nodes retrieved, and postoperative hospital length of stay were collected. Two patients were excluded because of early perforation of the peritoneum. In total, 21 para-aortic lymphadenectomies were performed (16 infrarenal and 5 inframesenteric). The median skin-to-skin operating time of infrarenal extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was 170 minutes (range, 90-225 minutes), the median lymph node count was 18 (range, 11 38), and the median estimated blood loss was 50 mL (range, 10-600 mL). The median skin-to-skin operating time of inframesenteric extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy was 120 minutes (range, 90-220 minutes), the median lymph node count was 10 (range, 7-19), and the median estimated blood loss was 30 mL (range, 10-100). Intraoperative complications included 1 thermal lesion of the left genitofemoral nerve, 1 thermal lesion of the left mesoureter (a ureteral stent was placed to avoid ureteric necrosis and fistula without after effect), and 1 lesion of the inferior vena cava that was sutured by robot-assisted laparoscopy. There were 2 additional cases of perforation of the peritoneum that occurred in the infrarenal group. The median hospital length of stay was 1 day (range, 0-7 days). Three patients were readmitted for symptomatic lymphocysts. CONCLUSION: Extraperitoneal para-aortic lymphadenectomy by robot-assisted laparoscopy provides good visualization of the operative field without arm conflict. Still, perforation of the peritoneum and symptomatic lymphocysts are a postoperative concern. PMID- 29337212 TI - Successful Management of Heterotopic Intramural Pregnancy Leading to a Live Birth of the Intrauterine Pregnancy. PMID- 29337214 TI - Correction. PMID- 29337213 TI - Military Surgeon Volume and Stress Incontinence Surgery Complications: A Retrospective Cohort Study. AB - STUDY OBJECTIVE: To compare 12-month postoperative complication rates in women who underwent sling procedures by high-volume versus low-volume surgeons at US military treatment facilities (MTFs). DESIGN: Retrospective cohort study (Canadian Task Force classification II-2). SETTING: US MTFs. PATIENTS: Female military beneficiaries enrolled in TRICARE. INTERVENTIONS: Sling surgery for stress urinary incontinence between January 1, 2011 and December 31, 2012. MEASUREMENTS AND MAIN RESULTS: The primary exposure was surgeon volume (high vs low). Surgeon volume was categorized as high or low based on the number of slings performed in the previous 2 years at US MTFs (January 1, 2009 to December 31, 2010). The primary outcome was a composite variable indicating at least 1 postoperative complication within 12 months. We used International Classification of Diseases, 9th revision and Current Procedural Terminology codes to identify postoperative complications that occurred in the 12 months after the index sling procedure. During the study period 348 gynecologic and urologic surgeons performed 1632 slings. The average patient age was 47.2 years. Based on our data distribution we classified surgeons as high volume (>12 slings/2 years) or low volume (<4 slings/2 years). High-volume surgeons operated on patients who were older, more likely to have comorbidities, and more likely to receive concomitant prolapse surgery. Using a cluster analysis the overall likelihood of at least 1 postoperative complication in 12 months for high-volume versus low-volume surgeons was 48.4% versus 42.2% (adjusted odds ratio, 1.24; 95% confidence interval, .99-1.54; p = .06). There were no differences between high- and low volume surgeons in the rate of almost all other postoperative complications. CONCLUSION: No significant differences in 12-month complication rates after sling surgery, stratified by surgeon volume, were seen in a setting of overall low volume military surgeons. PMID- 29337215 TI - Anti-angiogenic effects of Qingdu granule on breast cancer through inhibiting NFAT signaling pathway. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Qingdu granule (QDG), a traditional Chinese herbal prescription, had anti-tumor effect on breast cancer. However the underlying mechanism of QDG was unclear. THE AIM OF THIS STUDY: The present study aimed to investigate whether QDG could inhibit angiogenesis of breast cancer via acting on nuclear factor of activated T-cells (NFAT) signaling pathway. This was implicated in human umbilical vein endothelial cells (HUVECs) in vitro and breast cancer xenograft model in vivo. MATERIALS AND METHODS: The VEGF165 (15.58 ng/mL) induced human umbilical vein endothelial cells (HUVECs) were treated with serum samples containing tamoxifen (TAM), tacrolimus (FK506), or QDG with three dosages. The migration and canalization capacities of HUVECs were evaluated by transwell migration and tube formation assay. In 72 h-cultured HUVECs, The gene expression, protein amount, and nuclear translocation of NFATc3 were measured. The anti-tumor and anti-angiogenic effects of QDG in vivo were investigated in breast cancer xenograft model. The serum VEGF levels, microvessel density, and protein expressions (immunohistochemistry and western blot) of VEGF, VEGFR2 and NFATc3 were detected. RESULTS: The results showed that, QDG significantly inhibited HUVEC migration and tube formation. It downregulated NFATc3 gene expression, decreased NFATc3 protein amount, and reduced the ratio of NFATc3 nuclear translocation in HUVECs. In breast cancer xenograft model, QDG treatment significantly suppressed tumor growth, inhibited VEGF release, and decreased microvessel density. QDG reduced protein expressions of VEGF, VEGFR2 and NFATc3. CONCLUSION: The results suggested that QDG showed anti-angiogenic effects of breast cancer both in vitro and in vivo. The mechanism might be partially associated with inhibiting NFAT signaling pathway. PMID- 29337216 TI - In vitro lung epithelial cell transport and anti-interleukin-8 releasing activity of liposomal ciprofloxacin. AB - As a promising long-acting inhaled formulation, liposomal ciprofloxacin (Lipo CPFX) was characterized in the in vitro human lung epithelial Calu-3 cell monolayer system, compared to ciprofloxacin in solution (CPFX). Its modulated absorptive transport and uptake, and sustained inhibitory activity against induced pro-inflammatory interleukin-8 (IL-8) release were examined. The absorptive transport and uptake kinetics for Lipo-CPFX and CPFX were determined at 0.1-50 mg/ml in the Transwell system. The Lipo-CPFX transport was then challenged for mechanistic exploration via cell energy depletion, a reduced temperature, endocytosis and/or lipid fusion inhibition, and addition of excess non-loaded liposomes. The inhibitory activities of Lipo-CPFX and CPFX against lipopolysaccharide (LPS)-induced IL-8 release were assessed in a co-incubation or pre-incubation mode. In the tight Calu-3 cell monolayers, Lipo-CPFX yielded 15 times slower ciprofloxacin flux of absorptive transport and 5-times lower cellular drug uptake than CPFX. Its transport appeared to be transcellular; kinetically linear, proportional to encapsulated ciprofloxacin concentration; and consistent with the cell energy-independent lipid bilayer fusion mechanism. Lipo CPFX was equipotent to CPFX in the anti-IL-8 releasing activity upon 24 h co incubation with LPS. Additionally, Lipo-CPFX, but not CPFX, retained the anti-IL 8 releasing activity even 24 h after pre-incubation. In conclusion, Lipo-CPFX enabled slower absorptive lung epithelial cell transport and uptake of ciprofloxacin, apparently via the lipid bilayer fusion mechanism, and the sustained inhibitory activity against LPS-induced IL-8 release, compared to CPFX. PMID- 29337217 TI - Peptide drug stability: The anti-inflammatory drugs Pep19-2.5 and Pep19-4LF in cream formulation. AB - In previous years, we developed anti-infective drugs based on antimicrobial peptides (AMPs), which have been shown to effectively block severe infections and inflammation in vitro as well as in vivo. Besides systemic application, the occurrence of severe local infections necessitates a topical application for example in the case of severe skin and soft tissue infections (SSTI). Recent investigations show that the synthetic anti-lipopolysaccharide peptide (SALP) Pep19-2.5 (Aspidasept(r) I) and a variant called Pep19-4LF (Aspidasept(r) II) are able to supress inflammation reactions also in keratinocytes, Langerhans cells, and dendritic cells from the skin. For topical application, a possible formulation represents the drug dispersed into a pharmaceutical cream (DAC base cream). Here, we present investigations on the stability of the peptides using this formulation in dependence on time, which includes the evaluation of the extraction procedure, the quantitative analysis of the peptides after extraction, its sensitivity to protease degradation and its ability to maintain activity against LPS-induced inflammation in vitro. We have developed an extraction procedure for the peptides with an optimum yield and showed that Pep19-2.5 is present as a dimer after extraction from the cream, whereas Pep19-4LF retains its monomeric form. Both peptides show no degradation by chymotrypsin after extraction for at least 1 h, which is indicative for an attachment of constituents of the base cream, inhibiting the cutting into peptidic part structures. The extracted peptides and in particular the dimeric Pep19-2.5 are still able to inhibit the LPS-induced inflammation reaction in human mononuclear cells. PMID- 29337219 TI - Citrus bioflavonoid, hesperetin, as inhibitor of two thrombin-like snake venom serine proteases isolated from Crotalus simus. AB - Around 5.5 million people suffer from snakebites per year, with about 400,000 cases with some type of sequelae, such as amputation, and 20,000 to 125,000 cases with the fatal end. Usually, the victim outcome depends on correct, agile and many times in situ intervention based on the proper identification of the snake venom type and its potential effects, among other factors. Therefore, knowledge on the snake venom composition and a research on inhibitors of snake venom target components might ameliorate envenoming dangerous outcome. Herein, two thrombin like serine proteases from the Crotalus simus snake venom - SVSP1 and SVSP2 - were isolated in two chromatographic steps, using gel filtration and then RP HPLC. They showed molecular masses of around 31.3 and 24.6 kDa, respectively, and mostly beta-sheet secondary structure features. The SVSP1 and SVSP2 were sequenced using tandem mass spectrometry (Q-TOF). Using the known serine protease structure (PDB entry: 4e7n), which was evaluated as homologous to the two target proteins, in silico docking results showed that hesperetin is its excellent inhibitor. Using in vitro tests with the commercial hesperetin, kinetic parameters were obtained for SVSPs against the synthetic substrate BApNA. Obtained results pointed that hesperetin might act as an uncompetitive (SVSP1) or mixed (SVSP2) inhibitor. Also, the fluorescence quenching upon inhibition was observed, as well as, red shift in maximums of around 20 nm, which indicate that the tryptophan residues in the target enzymes suffered conformational changes caused by hesperetin binding. Thus, a naturally occurring flavone that can easily be extracted from oranges might serve as low-cost inhibitor of the investigated snake venom proteases. PMID- 29337218 TI - Calcium-dependent disorder-to-order transitions are central to the secretion and folding of the CyaA toxin of Bordetella pertussis, the causative agent of whooping cough. AB - The adenylate cyclase toxin (CyaA) plays an essential role in the early stages of respiratory tract colonization by Bordetella pertussis, the causative agent of whooping cough. Once secreted, CyaA invades eukaryotic cells, leading to cell death. The cell intoxication process involves a unique mechanism of translocation of the CyaA catalytic domain directly across the plasma membrane of the target cell. Herein, we review our recent results describing how calcium is involved in several steps of this intoxication process. In conditions mimicking the low calcium environment of the crowded bacterial cytosol, we show that the C terminal, calcium-binding Repeat-in-ToXin (RTX) domain of CyaA, RD, is an extended, intrinsically disordered polypeptide chain with a significant level of local, secondary structure elements, appropriately sized for transport through the narrow channel of the secretion system. Upon secretion, the high calcium concentration in the extracellular milieu induces the refolding of RD, which likely acts as a scaffold to favor the refolding of the upstream domains of the full-length protein. Due to the presence of hydrophobic regions, CyaA is prone to aggregate into multimeric forms in vitro, in the absence of a chaotropic agent. We have recently defined the experimental conditions required for CyaA folding, comprising both calcium binding and molecular confinement. These parameters are critical for CyaA folding into a stable, monomeric and functional form. The monomeric, calcium-loaded (holo) toxin exhibits efficient liposome permeabilization and hemolytic activities in vitro, even in a fully calcium-free environment. By contrast, the toxin requires sub-millimolar calcium concentrations in solution to translocate its catalytic domain across the plasma membrane, indicating that free calcium in solution is actively involved in the CyaA toxin translocation process. Overall, this data demonstrates the remarkable adaptation of bacterial RTX toxins to the diversity of calcium concentrations it is exposed to in the successive environments encountered in the course of the intoxication process. PMID- 29337220 TI - BotAF, a new Buthus occitanus tunetanus scorpion toxin, produces potent analgesia in rodents. AB - This work reports the purification of new potent scorpion neuropeptide, named BotAF, by an activity-guided screening approach. BotAF is a 64-residue long-chain peptide that shares very high similarity with the original beta-like scorpion toxin group, in which several peptides have been characterized to be anti nociceptive in rodents. BotAF administration to rodents does not produce any toxicity or motor impairment, including at high doses. In all models investigated, BotAF turned out to be an efficient peptide in abolishing acute and inflammatory (both somatic and visceral) pain in rodents. It performs with high potency compared to standard analgesics tested in the same conditions. The anti nociceptive activity of BotAF depends on the route of injection: it is inactive when tested by i.c.v. or i.v. routes but gains in potency when pre-injected locally (in the same compartment than the irritant itself) or by i.t. root 40 to 60 min before pain induction, respectively. BotAF is not an AINS-like compound as it fails to reduce inflammatory edema. Also, it does not activate the opioidergic system as its activity is not affected by naloxone. BotAF does also not bind onto RyR and has low activity towards DRG ion channels (particularly TTX sensitive Na+ channels) and does not bind onto rat brain synaptosome receptors. In somatic and visceral pain models, BotAF dose-dependently inhibited lumbar spinal cord c-fos/c jun mRNA up regulation. Altogether, our data favor a spinal or peripheral anti nociceptive mode of action of BotAF. PMID- 29337221 TI - Venom characterization of the Amazonian scorpion Tityus metuendus. AB - The soluble venom from the scorpion Tityus metuendus was characterized by various methods. In vivo experiments with mice showed that it is lethal. Extended electrophysiological recordings using seven sub-types of human voltage gated sodium channels (hNav1.1 to 1.7) showed that it contains both alpha- and beta scorpion toxin types. Fingerprint analysis by mass spectrometry identified over 200 distinct molecular mass components. At least 60 sub-fractions were recovered from HPLC separation. Five purified peptides were sequenced by Edman degradation, and their complete primary structures were determined. Additionally, three other peptides have had their N-terminal amino acid sequences determined by Edman degradation and reported. Mass spectrometry analysis of tryptic digestion of the soluble venom permitted the identification of the amino acid sequence of 111 different peptides. Search for similarities of the sequences found indicated that they probably are: sodium and potassium channel toxins, metalloproteinases, hyaluronidases, endothelin and angiotensin-converting enzymes, bradykinin potentiating peptide, hypothetical proteins, allergens, other enzymes, other proteins and peptides. PMID- 29337222 TI - Blockade of placental growth factor reduces vaso-occlusive complications in murine models of sickle cell disease. AB - Vaso-occlusive crisis (VOC) is the most common and debilitating complication of sickle cell disease (SCD); recurrent episodes cause organ damage and contribute to early mortality. Plasma placental growth factor (PlGF) levels are elevated in SCD and can further increase under hypoxic conditions in SCD mice. Treatment with a PlGF-neutralizing antibody (anti-PlGF Ab) in SCD mice reduced levels of monocyte chemoattractant protein-3, eotaxin, macrophage colony-stimulating factor, and plasminogen activator inhibitor-1 significantly, and of macrophage derived chemokine and macrophage inflammatory protein-3beta moderately; this may contribute to inhibition of leukocyte recruitment, activation, and thrombosis. In subsequent experiments, anti-PlGF Ab treatment significantly reduced plasma lactate dehydrogenase levels, indicating possible reduction in cellular destruction and/or hemolysis. Histopathology studies revealed decreased incidence and severity of congestion in the lungs and spleen with repeated anti-PlGF Ab treatment. Furthermore, anti-PlGF Ab significantly reduced vaso-occlusion events under hypoxic conditions in a modified dorsal skinfold chamber model in SCD mice. Therefore, elevated PlGF levels may contribute to recruitment and activation of leukocytes. This can subsequently lead to increased pathology of affected organs in addition to mediating acute hypoxia/reoxygenation-triggered vaso-occlusion under SCD conditions. Thus, targeting PlGF may offer a therapeutic approach to reduce acute VOC and possibly alleviate long-term vascular complications in patients with SCD. PMID- 29337223 TI - Sequential Conditioning with Thiotepa in T Cell- Replete Hematopoietic Stem Cell Transplantation for the Treatment of Refractory Hematologic Malignancies: Comparison with Matched Related, Haplo-Mismatched, and Unrelated Donors. AB - The results of conventional allogeneic stem cell transplantation (SCT) in refractory hematologic malignancies are poor. Sequential strategies have shown promising results in refractory acute myelogenous leukemia (AML), but have not been validated in a haploidentical (Haplo) transplant setting. We have developed a new sequential approach combining chemotherapy with broad antitumor activity (thiotepa 10 mg/kg, etoposide 400 mg/m2, and cyclophosphamide 1600 mg/m2 from day -15 to day -10), followed after 3 days of rest by a reduced-intensity conditioning regimen (fludarabine 150 mg/m2, i.v. busulfan 6.4 mg/kg, and thymoglobulin 5 mg/kg from day -6 to day -2). High-dose post-transplantation cyclophosphamide was added in cases with Haplo donors. Seventy-two patients (median age, 54 years) with a refractory hematologic malignancy (44 with acute myelogenous leukemia, 7 with acute lymphoblastic leukemia, 15 with myelodysplastic syndrome/myeloproliferative neoplasms, and 6 with lymphomas) were included in this retrospective multicenter study. Donors were Haplo (n = 27), matched related (MRD; n = 16), and unrelated (UD; n = 29). With a median follow up of 21 months, the 2-year overall survival (OS) and event-free survival (EFS) were 54.7% and 49.3%, respectively, in recipients of Haplo transplants, 49.2% and 43.8%, respectively, in recipients of MRD transplants, and 37.9% and 28%, respectively, in recipients of UD transplants. Compared with UD, the outcomes were improved in Haplo in terms of the incidences of acute grade II-IV graft versus-host disease (GVHD) (11.1% versus 41.4%; P < .001) and GVHD-free, relapse free survival (44.4 versus 10.3%; P = .022). These results support the safety and efficacy of a thiotepa-based sequential approach in allogeneic SCT with a Haplo donor with post-transplantation immune modulation. Thus, in patients with refractory hematologic malignancies, there seems to be no benefit in searching for a UD when a Haplo donor is readily available. PMID- 29337224 TI - An experimental study for rapid detection and quantification of endodontic microbiota following photo-activated disinfection via new multiplex real-time PCR assay. AB - BACKGROUND: The infected root canal system harbors one of the highest accumulations of polymicrobial infections. Since the eradication of endopathogenic microbiota is a major goal in endodontic infection therapy, photo activated disinfection (PAD) can be used as an alternative therapeutic method in endodontic treatment. Compared to cultivation-based approaches, molecular techniques are more reliable for identifying microbial agents associated with endodontic infections. The purpose of this study was to evaluate the ability of designed multiplex real-time PCR protocol for the rapid detection and quantification of six common microorganisms involved in endodontic infection before and after the PAD. MATERIALS AND METHODS: Samples were taken from the root canals of 50 patients with primary and secondary/persistent endodontic infections using sterile paper points. PAD with toluidine blue O (TBO) plus diode laser was performed on root canals. Resampling was then performed, and the samples were transferred to transport medium. Then, six target microorganisms were detected using multiplex real-time PCR before and after the PAD. RESULTS: Veillonella parvula was found using multiplex real-time PCR to have the highest frequency among samples collected before the PAD (29.4%), followed by Porphyromonas gingivalis (23.1%), Aggregatibacter actinomycetemcomitans (13.6%), Actinomyces naeslundii (13.0%), Enterococcus faecalis (11.5%), and Lactobacillus rhamnosus (9.4%). After TBO-mediated PAD, P. gingivalis strains, the most resistance microorganisms, were recovered in 41.7% of the samples using molecular approach (P > 0.05). CONCLUSION: As the results shown, multiplex real-time PCR as an accurate detection approach with high-throughput and TBO-mediated PAD as an efficient antimicrobial strategy due to the significant reduction of the endopathogenic count can be used for detection and treatment of microbiota involved in infected root canals, respectively. PMID- 29337225 TI - Bone, muscle, and metabolic parameters predict survival in patients with synchronous bone metastases from lung cancers. AB - BACKGROUND: Lung adenocarcinoma regularly induces bone metastases that are responsible for impaired quality of life as well as significant morbidity, including bone pain and fractures. We aimed at identifying whether bone and metabolic biomarkers were associated with the prognosis of lung adenocarcinoma patients with synchronous bone metastases. PATIENTS AND METHODS: POUMOS is a prospective cohort of patients diagnosed with lung adenocarcinoma and synchronous bone metastases. All patients underwent biopsy of bone metastases to confirm diagnosis, including genotyping of oncogenic drivers such as EGFR and KRAS. Whole body composition was assessed using DEXA scan. Serum levels of C-reactive protein, HbA1C, calcaemia, sCTX, and DKK1 were also measured. RESULTS: Sixty four patients, aged (mean +/- SD) 65 +/- 11 years, were included. Thirty-nine (61%) patients had a good performance status (PS 0-1); 56% had >5 bone lesions, and 41% a weight-bearing bone (femour or tibia) involvement. Median overall survival was 7 months. In multivariate analysis, HbA1c (HR = 1.69 [1.10-2.63] per 0.5% decrease; p = .02), DKK1 (HR = 1.28 [1.01-1.61] per 10 ng/mL increase; p = .04), and hypercalcaemia (HR = 2.83 [1.10-7.30]; p = .03) were independently associated with poorer survival. In the subgroup of patients with DEXA, sarcopenia was also associated with poorer survival (HR = 2.96, 95%CI [1.40-6.27]; p = .005). CONCLUSIONS: In patients with lung adenocarcinoma and synchronous bone metastases, bone, sarcopenia, and metabolic parameters were predictors of poor overall survival independently of common prognostic factors. We suggest that, in addition to oncological therapy, supportive treatment dedicated to bone metastases, muscle wasting, and energy metabolism are essential to improve prognosis. PMID- 29337226 TI - GLP-1 signaling and alcohol-mediated behaviors; preclinical and clinical evidence. AB - Alcohol addiction, affecting approximately four percent of the population, contributes significantly to the global burden of diseases and is a substantial cost to the society. The neurochemical mechanisms regulating alcohol mediated behaviors is complex and in more recent years a new physiological role of the gut brain peptides, traditionally known to regulate appetite and food intake, have been suggested. Indeed, regulators of alcohol-mediated behaviors. One of these gut-brain peptides is the annorexigenic peptide glucagon-like peptide-1 (GLP-1), Preclinical studies show that GLP-1 receptor activation, either by GLP-1 or analogues, attenuate the ability of alcohol to activate the mesolimbic dopamine system as well as decrease alcohol consumption and operant self-administration. In further support for the endogenous GLP-1 system in addiction processes are the experimental data showing that a GLP-1 receptor antagonist increases alcohol intake. Moreover, GLP-1 receptor agonists prevent the ability of other addictive drugs to activate the mesolimbic dopamine system. The number of clinical studies is limited, but show i) that genetic variation in the GLP-1 receptor gene is associated with alcohol addiction as well as increased alcohol infusion in humans, ii) that plasma levels of GLP-1 are associated with the subjective experience of cocaine and iii) that a GLP-1 receptor agonist reduces alcohol intake in patients with type-2 diabetes mellitus. These experimental and clinical studies raises the concern that clinically available GLP-1 receptor agonists deserves to be tested as potential treatments of patients with addictive disorders including alcohol addiction. This article is part of the Special Issue entitled 'Metabolic Impairment as Risk Factors for Neurodegenerative Disorders.' PMID- 29337228 TI - WITHDRAWN: Monitoring the prevalence of genetically modified (GM) maize in Iran food products. AB - This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our business/policies/article-withdrawal. PMID- 29337227 TI - Juvenile social defeat stress exposure persistently impairs social behaviors and neurogenesis. AB - Adverse juvenile experiences, including physical abuse, often have negative health consequences later in life. We investigated the influence of social defeat stress exposure as juveniles on neuropsychological behaviors, and the causal role of glucocorticoids in abnormal behaviors and impairment of neurogenesis in mice exposed to the stress. The juvenile (24-day-old) and adult (70-day-old) male C57BL/6J mice were exposed to social defeat stress induced by an aggressive ICR mouse. Social defeat stress exposure as juveniles, even for 1 day, induced persistent social avoidance to the unfamiliar ICR mouse in the social interaction test, but that was not observed in mice exposed to the stress as adults. Social avoidance by the stress exposure as juveniles for 10 consecutive days was observed, when the target mouse was not only unfamiliar ICR but also another C57BL/J mouse, but not an absent or an anesthetized ICR mouse. The stress exposure did not induce anxiety- and depression-like behaviors in spontaneous locomotor activity, elevated plus-maze test, marble-burying test, forced swimming test, or sucrose preference test. Serum corticosterone levels increased immediately after the stress exposure. The hippocampal neurogenesis was suppressed 1 day and 4 weeks after the stress exposure. Administration of mifepristone, a glucocorticoid receptor antagonist, prior to each stress exposure, blocked the persistent social avoidance and suppression of neurogenesis. In conclusion, social avoidance induced by social defeat stress exposure as juveniles are more persistent than that as adults. These social avoidances are associated with suppression of hippocampal neurogenesis via glucocorticoid receptors. PMID- 29337229 TI - Protective effect of flavonoids from Cyclocarya paliurus leaves against carbon tetrachloride-induced acute liver injury in mice. AB - Cyclocarya paliurus (Batal.) Iljinskaja (C. paliurus), known locally as 'sweet tea tree', is commonly cultivated in China. Flavonoids from Cyclocarya paliurus (Batal.) Iljinskaja (FC) is reported to exhibit multiple biological effects, including anti-inflammatory, anti-oxidant and anti-diabetic activities. However, their influence on carbon tetrachloride (CCl4)-induced acute liver injury remains unclear. This study was designed to investigate the hepatoprotective effect of total flavonoids from C. paliurus leaves. Results revealed that flavonoids from C. paliurus significantly decreased CCl4-induced elevation of activities of aspartate transaminase (AST), alanine transaminase (ALT) and superoxide dismutase (SOD) as well as the level of malondialdehyde (MDA), and markedly increased the levels of SOD, total antioxidant capacity (T-AOC) and glutathione peroxidase (GSH Px) compared with the model group. Structures of mainly compounds were elucidated by nuclear magnetic resonance (NMR), mass spectrometry (MS) spectroscopic and chemical analyses. This study clearly shows that flavonoids from C. paliurus exert a potent protective effect against CCl4-induced acute liver injury in mice. Its hepatoprotective effect appears to be closely associated with its antioxidant activity. The results indicated that flavonoids from C. paliurus leaves could be considered as a potent food supplement in the prevention of acute liver injury. PMID- 29337230 TI - Cholesterol modulates the liposome membrane fluidity and permeability for a hydrophilic molecule. AB - The effect of cholesterol (CHOL) content on the permeability and fluidity of dipalmitoylphosphatidylcholine (DPPC) liposome membrane was investigated. Liposomes encapsulating sulforhodamine B (SRB), a fluorescent dye, were prepared by reverse phase evaporation technique (REV) at various DPPC:CHOL molar ratios (from 100:0 to 100:100). The release kinetics of SRB was studied during 48 h in buffer (pH 7.4) containing NaCl at 37 degrees C. The DPPC:CHOL formulations were also characterized for their size, polydispersity index and morphology. Increasing CHOL concentration induced an increase in the mean liposomes size accompanying with a shape transition from irregular to nanosized, regular and spherical vesicles. The release kinetics of SRB showed a biphasic pattern; the release data was then analyzed using different mathematical models. On the overall, the SRB release was governed by a non-Fickian diffusion during the first period (0-10 h) while it followed a Fickian diffusion between 10 and 48 h. Changes in DPPC liposome membrane fluidity of various batches (CHOL% 0, 10, 20, 30 and 100) were monitored by using 5- and 16 doxyl stearic acids (DSA) as spin labels. CHOL induced a decrease in the bilayer fluidity. Concisely, CHOL represents a critical component in modulating the release of hydrophilic molecules from lipid vesicles. PMID- 29337232 TI - DA Neurons Promote the Instigation and Maintenance of Effortful Responding: A Commentary on Fischbach-Weiss, Reese, and Janak. PMID- 29337231 TI - Apoptosis induction by Pleurotus sajor-caju (Fr.) Singer extracts on colorectal cancer cell lines. AB - Pleurotus sajor-caju (PSC) is an edible mushroom used in food supplements, presenting antitumor properties through induction of cell death pathways. The PSC potential against colorectal cancer was analyzed by exposing HCT116wt cells to different PSC extracts. The PSC n-hexane extract (PSC-hex) showed the highest cytotoxicity effect (IC50 value 0.05 mg/mL). The observed cytotoxicity was then associated to apoptosis-promoting and cell cycle-arrest pathways. PSC-hex was able to induce apoptosis related to breakdown of mitochondrial membrane potential and ROS generation. The absence of cytotoxicity in HTC116-p53 and HTC116-Bax cells, alongside with an increase in p53, Bax and Caspase-3 expression, and decrease in Bcl-2 expression, supports that the pro-apoptotic effect is probably induced through a p53 associated pathway. PSC-hex induced cell cycle arrest at G2/M in HCT116wt without cytotoxicity in HTC116-p21 cells. These findings suggest that a p21/p53 cell cycle regulation pathway is probably disrupted by compounds present on PSC-hex. Identification of the major components was then performed with ergosta-5,7,22-trien-3beta-ol representing 30.6% of total weight. In silico docking studies of ergosta-5,7,22-trien-3beta against Bcl-2 were performed and results show a credible interaction with the Bcl-2 hydrophobic cleft. The results show that PSC-hex can be used as supplementary food for adjuvant therapy in colorectal carcinoma. PMID- 29337234 TI - Electrophysiological Activity Prior to Self-initiated Movements is Related to Impulsive Personality Traits. AB - Electrophysiological and neuroimaging studies suggest that our actions are initiated by unconscious mental processes long before awareness of intention to act. The time window between the awareness of the intention to move and the movement onset, which normally permits to exert a conscious "veto" on the impending action, is modulated by individual differences in trait impulsivity. In particular, trait impulsive people show a delayed awareness of the intention to act, probably exceeding the "point of no return", after which the action can no longer be inhibited. In order to investigate if individual differences in the "veto" interval might be explained by differences in the readiness potential (RP) dynamics, nineteen healthy participants underwent an impulsivity trait assessment using the Barratt Impulsiveness Scale (BIS-11) and performed a task based on Libet's clock paradigm, during EEG recordings of pre-movement neural activity. We observed a positive relationship between impulsive personality trait and motor system excitability during the preparation of self-initiated movements. In particular, the RP showed an earlier negative rising phase and a greater amplitude, with the increasing of BIS-11 scores. Based on present results, we conclude hypothesizing that trait impulsivity might be characterized by less effective preparatory inhibition mechanisms, which have a fundamental role in the control of behavior. PMID- 29337233 TI - Tau Deficiency Down-Regulated Transcription Factor Orthodenticle Homeobox 2 Expression in the Dopaminergic Neurons in Ventral Tegmental Area and Caused No Obvious Motor Deficits in Mice. AB - Tau protein participates in microtubule stabilization, axonal transport, and protein trafficking. Loss of normal tau function will exert a negative effect. However, current knowledge on the impact of tau deficiency on the motor behavior and related neurobiological changes is controversial. In this study, we examined motor functions and analyzed several proteins implicated in the maintenance of midbrain dopaminergic (DA) neurons (mDANs) function of adult and aged tau+/+, tau+/-, tau-/- mice. We found tau deficiency could not induce significant motor disorders. However, we discovered lower expression levels of transcription factors Orthodenticle homeobox 2 (OTX2) of mDANs in older aged mice. Compared with age-matched tau+/+ mice, there were 54.1% lower (p = 0.0192) OTX2 protein (OTX2-fluorescence intensity) in VTA DA neurons of tau+/- mice and 43.6% lower (p = 0.0249) OTX2 protein in VTA DA neurons of tau-/- mice at 18 months old. Combined with the relevant reports, our results suggested that tau deficiency alone might not be enough to mimic the pathology of Parkinson's disease. However, OTX2 down-regulation indicates that mDANs of tau-deficient mice will be more sensitive to toxic damage from MPTP. PMID- 29337235 TI - Frequency-specific Effective Connectivity in Subjects with Cerebral Infarction as Revealed by NIRS Method. AB - A connectivity-based approach can highlight the network reorganization in the chronic phases after stroke and contributes to the development of therapeutic interventions. Using dynamic Bayesian inference, this study aimed to assess the effective connectivity (EC) in various frequency bands through the near-infrared spectroscopy (NIRS) method in subjects with cerebral infarction (CI). A phase coupling model was established based on phase information extracted using the wavelet transform of NIRS signals. Coupling strength and the main coupling direction were estimated using dynamic Bayesian inference. Wilcoxon test and chi square test were used to determine the significant difference in EC between two groups. Results showed that the coupling strength of the EC in the CI group significantly decreased relative to that in the healthy group. The decrease was most significant in the frequency intervals IV (0.021 Hz-0.052 Hz; p = 0.0006) and VI (0.005 Hz-0.095 Hz; p = 0.0028). The main coupling direction changed from the right prefrontal cortex to the right motor cortex and left motor cortex in the frequency intervals IV (p1 = 0.041, p2 = 0.047) and II (p1 = 0.0017, p2 = 0.0036), respectively. The EC decreased or was even lost significantly in the EC map of the CI group. Experimental results indicated that information propagation was blocked in the CI group than in the healthy group and resulted in the decreased coupling strength and connectivity loss. The main coupling direction of the motor section changed from driving into being driven because of the degradation of limb movement function. PMID- 29337237 TI - Uridine-5'-Triphosphate Partially Blocks Differentiation Signals and Favors a more Repair State in Cultured rat Schwann Cells. AB - Schwann cells (SCs) play a key role in peripheral nerve regeneration. After damage, they respond acquiring a repair phenotype that allows them to proliferate, migrate and redirect axonal growth. Previous studies have shown that Uridine-5'-Triphosphate (UTP) and its purinergic receptors participate in several pathophysiological responses in the nervous system. Our group has previously described how UTP induces the migration of a Schwannoma cell line and promotes wound healing. These data suggest that UTP participates in the signaling involved in the regeneration process. In the present study we evaluated UTP effects in isolated rat SCs and cocultures of SCs and dorsal root ganglia neurons. UTP reduced cAMP-dependent Krox-20 induction in SCs. UTP also reduced the N-cadherin re-expression that occurs when SCs and axons make contact. In myelinating cocultures, a non-significant tendency to a lower expression of P0 and MAG proteins in presence of UTP was observed. We also demonstrated that UTP induced SC migration without affecting cell proliferation. Interestingly, UTP was found to block neuregulin-induced phosphorylation of the ErbB3 receptor, a pathway involved in the regeneration process. These results indicate that UTP could acts as a brake to the differentiation signals, promoting a more migratory state in the repair-SCs. PMID- 29337236 TI - Maintenance of the Innate Seizure Threshold by Cyclooxygenase-2 is Not Influenced by the Translational Silencer, T-cell Intracellular Antigen-1. AB - Activity of neuronal cyclooxygenase-2 (COX-2), a primary source of PG synthesis in the normal brain, is enhanced by excitatory neurotransmission and this is thought to be involved in seizure suppression. Results herein showing that the incidence of pentylenetetrazole (PTZ)-induced convulsions is suppressed in transgenic mice overexpressing COX-2 in neurons support this notion. T-cell intracellular antigen-1 (TIA-1) is an mRNA binding protein that is known to bind to COX-2 mRNA and repress its translation in non-neuronal cell types. An examination of the expression profile of TIA-1 protein in the normal brain indicated that it is expressed broadly by neurons, including those that express COX-2. However, whether TIA-1 regulates COX-2 protein levels in neurons is not known. The purpose of this study was to test the possibility that deletion of TIA 1 increases basal COX-2 expression in neurons and consequently raises the seizure threshold. Results demonstrate that neither the basal nor seizure-induced expression profiles of COX-2 were altered in mice lacking a functional TIA-1 gene suggesting that TIA-1 does not contribute to regulation of COX-2 protein expression in neurons. The acute PTZ-induced seizure threshold was also unchanged in mice lacking TIA-1 protein, indicating that this RNA binding protein does not influence the innate seizure threshold. Nevertheless, the results raise the possibility that the level of neuronal COX-2 expression may be a determinant of the innate seizure threshold and suggest that a better understanding of the regulation of COX-2 expression in the brain could provide new insight into the molecular mechanisms that suppress seizure induction. PMID- 29337238 TI - Advantages of the Alpha-lipoic Acid Association with Chlorpromazine in a Model of Schizophrenia Induced by Ketamine in Rats: Behavioral and Oxidative Stress evidences. AB - Schizophrenia is a chronic mental disorder reported to compromise about 1% of the world's population. Although its pathophysiological process is not completely elucidated, evidence showing the presence of an oxidative imbalance has been increasingly highlighted in the literature. Thus, the use of antioxidant substances may be of importance for schizophrenia treatment. The objective of this study was to evaluate the behavioral and oxidative alterations by the combination of chlorpromazine (CP) and alpha-lipoic acid (ALA), a potent antioxidant, in the ketamine (KET) model of schizophrenia in rats. Male Wistar rats (200-300 g) were treated for 10 days with saline, CP or ALA alone or in combination with CP previous to KET and the behavioral (open field, Y-maze and PPI tests) and oxidative tests were performed on the last day of treatment. The results showed that KET induced hyperlocomotion, impaired working memory and decreased PPI. CP alone or in combination with ALA prevented KET-induced behavioral effects. In addition, the administration of KET decreased GSH and increased nitrite, lipid peroxidation and myeloperoxidase activity. CP alone or combined with ALA prevented the oxidative alterations induced by KET. In conclusion, the treatment with KET in rats induced behavioral impairments accompanied by hippocampal oxidative alterations, possibly related to NMDA receptors hypofunction. Besides that, CP alone or combined with ALA prevented these effects, showing a beneficial activity as antipsychotic agents. PMID- 29337239 TI - Background Suppression and its Relation to Foreground Processing of Speech Versus Non-speech Streams. AB - Since sound perception takes place against a background with a certain amount of noise, both speech and non-speech processing involve extraction of target signals and suppression of background noise. Previous works on early processing of speech phonemes largely neglected how background noise is encoded and suppressed. This study aimed to fill in this gap. We adopted an oddball paradigm where speech (vowels) or non-speech stimuli (complex tones) were presented with or without a background of amplitude-modulated noise and analyzed cortical responses related to foreground stimulus processing, including mismatch negativity (MMN), N2b, and P300, as well as neural representations of the background noise, that is, auditory steady-state response (ASSR). We found that speech deviants elicited later and weaker MMN, later N2b, and later P300 than non-speech ones, but N2b and P300 had similar strength, suggesting more complex processing of certain acoustic features in speech. Only for vowels, background noise enhanced N2b strength relative to silence, suggesting an attention-related speech-specific process to improve perception of foreground targets. In addition, noise suppression in speech contexts, quantified by ASSR amplitude reduction after stimulus onset, was lateralized towards the left hemisphere. The left-lateralized suppression following N2b was associated with the N2b enhancement in noise for speech, indicating that foreground processing may interact with background suppression, particularly during speech processing. Together, our findings indicate that the differences between perception of speech and non-speech sounds involve not only the processing of target information in the foreground but also the suppression of irrelevant aspects in the background. PMID- 29337240 TI - Prevention of the Severity of Post-ischemic Inflammation and Brain Damage by Simultaneous Knockdown of Toll-like Receptors 2 and 4. AB - Toll-like receptor 2 (TLR2) and TLR4 belong to a family of highly conserved pattern recognition receptors and are well-known upstream sensors of signaling pathways of innate immunity. TLR2 and TLR4 upregulation is thought to be associated with poor outcome in stroke patients. We currently show that transient focal ischemia in adult rats induces TLR2 and TLR4 expression within hours and shRNA-mediated knockdown of TLR2 and TLR4 alone and in combination decreases the infarct size and swelling. We further show that TLR2 and TLR4 knockdown also prevented the induction of their downstream signaling molecules MyD88, IRAK1, and NFkappaB p65 as well as the pro-inflammatory cytokines IL-1beta, IL-6, and TNFalpha. This study thus shows that attenuation of the severity of TLR2- and TLR4-mediated post-stroke inflammation ameliorates ischemic brain damage. PMID- 29337241 TI - Differential Effects of Alzheimer's Disease Abeta40 and 42 on Endocytosis and Intraneuronal Trafficking. AB - Anomalous neuronal accumulation of Abeta peptides was shown to affect synaptic transmission and contribute to neurodegeneration in Alzheimer's disease (AD) brain. Neuronal cells internalize amyloid beta (Abeta) peptides from the brain extracellular space even under normal physiological conditions, and these endocytotic pathways go awry during AD progression. We hypothesized that exposure to toxic Abeta species accumulating in AD brain contributes to perturbations in neuronal endocytosis. We have shown substantial down-regulation of KEGG endocytotic pathway genes in AD patient brain regions that accumulate Abeta compared to those in non-demented individuals. While both Abeta40 and Abeta42 perturbed endocytosis and intracellular trafficking in neuronal cells, Abeta40 had a greater effect than Abeta42. Moreover, Abeta40 decreased the neuronal uptake and lysosomal accumulation of Abeta42, which tends to oligomerize at low lysosomal pH. Hence, Abeta40 may reduce the prevalence of stable Abeta42 oligomers that are closely associated with neurodegeneration and are intercellularly propagated across the vulnerable brain regions to eventually nucleate as amyloid plaques. In conclusion, elevated brain Abeta levels and Abeta42:40 ratio apparent in the early stages of AD could perturb intraneuronal trafficking, augment the anomalous accumulation of amyloid peptides in AD brain, and drive AD pathogenesis. PMID- 29337242 TI - Expression of GAEC1 mRNA and protein and its association with clinical and pathological parameters of patients with colorectal adenocarcinoma. AB - AIM: GAEC1 (Gene amplified in esophageal cancer 1) is an oncogene with key regulatory roles in the pathogenesis of oesophageal and colorectal carcinomas. The aim of this study was to investigate expression profiles and clinicopathological significance of GAEC1 mRNA and protein in patients with colorectal carcinomas. METHOD: Matched cancer and non-cancer fresh frozen tissues were prospectively collected from 80 patients diagnosed with colorectal adenocarcinoma (39 men and 41 women). The tissues were sectioned for RNA extraction and cDNA conversion and quantified by a real-time polymerase chain reaction. GAEC1 protein expression was analysed by immunohistochemistry using a custom made GAEC1 antibody. RESULT: GAEC1 mRNA was upregulated in majority (52%, n=42/80) of the colorectal carcinomas when compared to the matched non-neoplastic tissues. High expression of GAEC1 mRNA as correlated with patients of younger age (p=0.008), with lower grade carcinoma (p=0.028), presence of synchronous adenocarcinomas (p=0.034) and without any associated adenomas (p=0.047). In addition, patients with high GAEC1 mRNA overexpression had a shorter survival time. Furthermore, high GAEC1 protein expression was noted among patients having perforated colorectal carcinoma (p=0.04). CONCLUSION: The high expression of GAEC1 mRNA/protein as well as its correlation with multiple clinicopathological characteristics in patients with colorectal carcinoma strongly suggests that GAEC1 is a key regulator in the initiation of colorectal carcinogenesis. PMID- 29337243 TI - Intratumoral morphological heterogeneity can be an indicator of genetic heterogeneity in colorectal cancer. AB - Anti-EGFR-targeted therapy is used to treat metastatic colorectal cancers with RAS wild-type. However, resistance to targeted therapy is often observed and can be primary or acquired. One reason for primary resistance is the presence of mutations that are undetected due to genetic heterogeneity, which can be expressed by differences present in primary tumor and distant metastasis or recurrence or by an intratumoral heterogeneity (presence of different subclones in the investigated tumor sample). The aim of our study was to investigate if morphological heterogeneity can be an indicator of intratumoral heterogeneity. We analysed 13 samples with homogeneous and six samples with heterogeneous morphology with NGS. We were able to demonstrate that intratumoral genetic heterogeneity is present in all studied tumor samples, independent of homogeneous or heterogeneous morphology. Moreover, one sample of our cohort with morphological and genetic heterogeneity had a genetic wild-type profile in one tumor component. Therefore, we recommend to include each morphologically identifiable tumor component in the mutational analysis to not overlook resistance-inducing or potentially targetable mutations. PMID- 29337244 TI - MiR-142-5p act as an oncogenic microRNA in colorectal cancer: Clinicopathological and functional insights. AB - OBJECTIVES: miR-142-5p was noted aberrantly expressed and plays important roles in different pathophysiological conditions in human. The present study aims to examine the expression of miR-142-5p and its association with clinicopathological factors in a large cohort of patients with colorectal cancer. In addition, the cellular effects of miR-142-5p and its interacting targets in colon cancer cells were investigated. METHODS: Expression of miR-142-5p in colorectal cancer tissues (n=125) and colon cancer cell lines were analysed using real-time polymerase chain reaction. In vitro assays (cell proliferation, wound healing and colony formation) were used to study the miR-142-5p induced cellular effects. Western blots were used to examine the modulation of FAM134B, KRAS, EPAS1 and KLF6 proteins expression followed by miR-142-5p expression-manipulation. RESULTS: Significant high expression of miR-142-5p was noted in cancer tissues and cells when compared to the controls (p<0.001). Overexpression of miR-142-5p in patients with colorectal cancer was common (72%; 90/125). miR-142-5p overexpression was associated with cancer in the proximal colorectum and with B-raf positive patients (p=0.05). Exogenous overexpression of miR-142-5p resulted in significantly increased cell proliferation, colony formation, and wound healing capacities, whereas inhibition of endogenous miR-142-5p led reduced cancer growth properties. The cellular effects of miR-142-5p were mediated by the modulation of tumour suppressor KLF6 expression, as the expression of miR-142-5p and KLF6 protein are inversely correlated in colon cancer cells. CONCLUSION: High miR-142 5p expression was associated with the biological aggressiveness of cancer. Thus, suppression of miR-142-5p could be a therapeutic strategy for patients with colorectal cancers. PMID- 29337246 TI - TLR3 gene in Japanese sea perch (Lateolabrax japonicus): Molecular cloning, characterization and expression analysis after bacterial infection. AB - Toll-like receptors (TLRs) play important roles in fish innate immune and are involved in the defense process of bacteria invasion. In the present study, the full-length cDNA of TLR3 from the sea perch, Lateolabrax japonicus, was cloned and characterized. The full length of LjTLR3 cDNA was 3265 bp including an open reading frame of 2679 bp encoding a peptide of 922 amino acids. Tissues distribution analysis indicated that LjTLR3 showed a tissue-specific variation with high expression in spleen, head-kidney and liver. In order to investigate LjTLR3 functions against bacteria infection, the expression patterns of LjTLR3 after Vibrio harveyi and Streptococcus agalactiae challenge were detected by qRT PCR, and the results showed that LjTLR3 was significant up-regulated after both bacteria stimulation in head-kidney, spleen and liver in a time-depended manner. Furthermore, the results by in situ hybridization experiments showed that positive signals of LjTLR3 mRNA in infected spleen and head-kidney were more numerous than that in the control group. In addition, intracellular localization revealed that LjTLR3 is distributed in the cytoplasm. In summary, these findings suggest that LjTLR3 was involved in the immune process under bacteria infection. This study would benefit to further clarify the roles of fish TLRs in the immune process and contribute to further study on enhancing disease resistance of L. japonicus. PMID- 29337245 TI - Hepatic alcohol dehydrogenase deficiency induces pancreatic injury in chronic ethanol feeding model of deer mice. AB - The single most common cause of chronic pancreatitis (CP, a serious inflammatory disease) is chronic alcohol abuse, which impairs hepatic alcohol dehydrogenase (ADH, a major ethanol oxidizing enzyme). Previously, we found ~5 fold greater fatty acid ethyl esters (FAEEs), and injury in the pancreas of hepatic ADH deficient (ADH-) vs. hepatic normal ADH (ADH+) deer mice fed 3.5g% ethanol via liquid diet daily for two months. Therefore, progression of ethanol-induced pancreatic injury was determined in ADH- deer mice fed ethanol for four months to delineate the mechanism and metabolic basis of alcoholic chronic pancreatitis (ACP). In addition to a substantially increased blood alcohol concentration and plasma FAEEs, significant degenerative changes, including atrophy and loss of acinar cells in some areas, ultrastructural changes evident by such features as swelling and disintegration of endoplasmic reticulum (ER) cisternae and ER stress were observed in the pancreas of ethanol-fed ADH- deer mice vs. ADH+ deer mice. These changes are consistent with noted increases in pancreatic injury markers (plasma lipase, pancreatic trypsinogen activation peptide, FAEE synthase and cathepsin B) in ethanol-fed ADH- deer mice. Most importantly, an increased levels of pancreatic glucose regulated protein (GRP) 78 (a prominent ER stress marker) were found to be closely associated with increased phosphorylated eukaryotic initiation factor (eIF) 2alpha signaling molecule in PKR-like ER kinase branch of unfolded protein response (UPR) as compared to X box binding protein 1S and activating transcription factor (ATF)6 - 50kDa protein of inositol requiring enzyme 1alpha and ATF6 branches of UPR, respectively, in ethanol-fed ADH- vs. ADH+ deer mice. These results along with findings on plasma FAEEs, and pancreatic histology and injury markers suggest a metabolic basis of ethanol-induced pancreatic injury, and provide new avenues to understand metabolic basis and molecular mechanism of ACP. PMID- 29337247 TI - Effects of dietary administration of fenugreek seeds on metabolic parameters and immune status of gilthead seabream (Sparus aurata L.). AB - Medical plants could be used as a prophylactic method in aquaculture because they are considered safe and so very promising alternatives to the use of chemicals. The aim of the present work was to examine the effects of dietary fenugreek (Trigonella foenum graecum) seeds administered for 8 weeks on the metabolic and immune status of gilthead seabream (Sparus aurata L.). Four experimental groups were designated: one receiving a basal diet (control) and three fed powdered fenugreek seeds incorporated in the fish feed at 1%, 5% and 10%. The results show that significant decreases in aspartate aminotransferase, creatine kinase, potassium and the albumin/globulin ratio were detected in the serum of fish fed 10% fenugreek compared with the values recorded in control fish. As regards the immune status, fish fed the 5% supplemented diet had higher haemolytic complement and peroxidase activities than the control fish whilst antiprotease activity was higher in fish fed the 1% fenugreek level respect to control fish and the fish fed the highest fenugreek supplementation rate. Interestingly, the results also revealed a significant enhancement of most of the cellular immune parameters studied, especially in fish fed the highest level of fenugreek (10%). However, the bacteriostatic activity of serum against fish pathogenic and non-pathogenic bacteria was non-affected to any significant extent in fish fed the supplemented diets. Overall, the results suggest that the high level of dietary fenugreek tested in this work (10%) did not negatively affect any of the metabolic parameters measured in serum but increased some of them. In addition, the inclusion of fenugreek seeds in the gilthead seabream diet at 5% or 10% improved the humoral and cellular immune activities, respectively. Further studies are needed to better understand the effects of this natural product, which may be suitable for use as a feed additive in fish aquaculture. PMID- 29337248 TI - Immunohistochemical characterization of epidermal dendritic-like cells in giant mudskipper, Periophthalmodon schlosseri. AB - Giant Mudskipper, Periophthalmodon schlosseri (Pallas, 1770), is euryhaline, amphibious, and air-breathing fish. These fishes live in close association to mangrove forests and often spend over 90% of time out of water, in adjacent mudflats. They have developed morphological and physiological adaptations to satisfy their unique lifestyles. The skin is the primary interface between the body and the environment, and has a central role in host defence. The initiation of immune responses to antigens in the vertebrate skin has often been attributed to epidermal Langerhans'cells (LC) that are dendritic cells (DC), antigen presenting cells (APC) which reside in the epidermis. Dendritic cells have been characterized morphologically and functionally in the teleost fish tissues such as rainbow trout, salmonids, medaka, African catfish and zebrafish. However, there is no evidence of the presence of DCs and their role in mudskippers immunity. The aim of this preliminary study was to characterize, through use of specific antibodies: Toll-like receptor 2, S100, serotonin (5-HT), and Vesicular acetylcholine transporter VAChT, a specific DC-like subpopulation in Pn. schlosseri's epidermis. PMID- 29337249 TI - Regulation of lactate dehydrogenase in response to WSSV infection in the shrimp Litopenaeus vannamei. AB - Lactate dehydrogenase (LDH) is key for anaerobic glycolysis. LDH is induced by the hypoxia inducible factor -1 (HIF-1). HIF-1 induces genes involved in glucose metabolism and regulates cellular oxygen homeostasis. HIF-1 is formed by a regulatory alpha-subunit (HIF-1alpha) and a constitutive beta-subunit (HIF 1beta). The white spot syndrome virus (WSSV) induces anaerobic glycolysis in shrimp hemocytes, associated with lactate accumulation. Although infection and lactate production are associated, the LDH role in WSSV-infected shrimp has not been examined. In this work, the effects of HIF-1 silencing on the expression of two LDH subunits (LDHvan-1 and LDHvan-2) in shrimp infected with the WSSV were studied. HIF-1alpha transcripts increased in gills, hepatopancreas, and muscle after WSSV infection, while HIF-1beta remained constitutively expressed. The expression for both LDH subunits increased in each tissue evaluated during the WSSV infection, translating into increased enzyme activity. Glucose concentration increased in each tissue evaluated, while lactate increased in gills and hepatopancreas, but not in muscle. Silencing of HIF-1alpha blocked the increase of LDH expression and enzyme activity, along with glucose (all tissues) and lactate (gills and hepatopancreas) concentrations produced by WSSV infection. These results demonstrate that HIF-1 up regulates the expression of LDH subunits during WSSV infection, and that this induction contributes to substrate metabolism in energetically active tissues of infected shrimp. PMID- 29337250 TI - The STIM1 inhibitor ML9 disrupts basal autophagy in cardiomyocytes by decreasing lysosome content. AB - Stromal-interaction molecule 1 (STIM1)-mediated store-operated Ca2+ entry (SOCE) plays a key role in mediating cardiomyocyte hypertrophy, both in vitro and in vivo. Moreover, there is growing support for the contribution of SOCE to the Ca2+ overload associated with ischemia/reperfusion injury. Therefore, STIM1 inhibition is proposed as a novel target for controlling both hypertrophy and ischemia/reperfusion-induced Ca2+ overload. Our aim was to evaluate the effect of ML9, a STIM1 inhibitor, on cardiomyocyte viability. ML9 was found to induce cell death in cultured neonatal rat cardiomyocytes. Caspase-3 activation, apoptotic index and release of the necrosis marker lactate dehydrogenase to the extracellular medium were evaluated. ML9-induced cardiomyocyte death was not associated with increased intracellular ROS or decreased ATP levels. Moreover, treatment with ML9 significantly increased levels of the autophagy marker LC3-II, without altering Beclin1 or p62 protein levels. However, treatment with ML9 followed by bafilomycin-A1 did not produce further increases in LC3-II content. Furthermore, treatment with ML9 resulted in decreased LysoTracker(r) Green staining. Collectively, these data suggest that ML9-induced cardiomyocyte death is triggered by a ML9-dependent disruption of autophagic flux due to lysosomal dysfunction. PMID- 29337251 TI - Chromatin organization regulated by EZH2-mediated H3K27me3 is required for OPN induced migration of bone marrow-derived mesenchymal stem cells. AB - Osteopontin (OPN) is a chemokine-like extracellular matrix-associated protein involved in the migration of bone marrow-derived mesenchymal stem cells (BMSCs). An increasing number of studies have found that chromatin organization may affect cellular migration. However, whether OPN regulates chromatin organization is not understood, nor are the underlying molecular mechanisms. In this study, we investigated the link between chromatin organization and BMSC migration and demonstrated that OPN-mediated BMSC migration leads to elevated levels of heterochromatin marker histone H3 lysine 27 trimethylation (H3K27me3) through the methyltransferase EZH2. The expression of EZH2 reorganizes the chromatin structure of BMSCs. Pharmacological inhibition or depletion of EZH2 blocks BMSC migration. Moreover, using an atomic force microscope (AFM), we found that chromatin decondensation alters the mechanical properties of the nucleus. In addition, inhibition of extracellular signal-regulated kinase 1/2 (ERK1/2) signals represses OPN-promoted chromatin condensation and cell migration. Thus, our results identify a mechanism by which ERK1/2 signalling drives specific chromatin modifications in BMSCs, which alters chromatin organization and thereby enables OPN-mediated BMSC migration. PMID- 29337252 TI - Phosphatases catching up with the level of knowledge: Finally druggable? PMID- 29337253 TI - Should standardized susceptibility testing for microbial biofilms be introduced in clinical practice? PMID- 29337254 TI - Are we living in an antibiotic resistance nightmare? PMID- 29337255 TI - A comparative study of American and Chinese college students' motives for food choice. AB - Previous cross-cultural research has examined college students' food choice decisions in different countries. The current study aimed to add to the literature by examining similarities and differences in motives for food choice between American (N = 328) and Chinese (N = 333) college students. The Food Choice Questionnaire (FCQ) was used to measure the participants' motives for food choice. Students' perceptions on the importance of diet and on their body satisfaction were also obtained. Results show that, while there are many similarities between the two cultural groups on the FCQ items, there are also significant differences. Specifically, the two groups view sensory appeal, weight, health, mood, and familiarity in a similar way, but the American participants score higher on price and convenience whereas the Chinese score higher on natural content and ethical concerns. We believe contextual cultural factors of each country may be related to these results. Women view sensory appeal and weight as significantly more important than men. Interactions between culture and gender are also found. For example, American women score significantly higher than American men on mood whereas there is no gender difference in the Chinese group; on the other hand, Chinese men score significantly higher on price than Chinese women whereas there is no gender difference in the American group. PMID- 29337256 TI - MicroRNA regulatory networks reflective of polyhexamethylene guanidine phosphate induced fibrosis in A549 human alveolar adenocarcinoma cells. AB - Polyhexamethylene guanidine phosphate (PHMG-phosphate), an active component of humidifier disinfectant, is suspected to be a major cause of pulmonary fibrosis. Fibrosis, induced by recurrent epithelial damage, is significantly affected by epigenetic regulation, including microRNAs (miRNAs). The aim of this study was to investigate the fibrogenic mechanisms of PHMG-phosphate through the profiling of miRNAs and their target genes. A549 cells were treated with 0.75 MUg/mL PHMG phosphate for 24 and 48 h and miRNA microarray expression analysis was conducted. The putative mRNA targets of the miRNAs were identified and subjected to Gene Ontology analysis. After exposure to PHMG-phosphate for 24 and 48 h, 46 and 33 miRNAs, respectively, showed a significant change in expression over 1.5-fold compared with the control. The integrated analysis of miRNA and mRNA microarray results revealed the putative targets that were prominently enriched were associated with the epithelial-mesenchymal transition (EMT), cell cycle changes, and apoptosis. The dose-dependent induction of EMT by PHMG-phosphate exposure was confirmed by western blot. We identified 13 putative EMT-related targets that may play a role in PHMG-phosphate-induced fibrosis according to the Comparative Toxicogenomic Database. Our findings contribute to the comprehension of the fibrogenic mechanism of PHMG-phosphate and will aid further study on PHMG phosphate-induced toxicity. PMID- 29337258 TI - Adding injury to infection: The relationship between injury status and genetic diversity of Theileria infecting plains zebra, Equus quagga. AB - Asymptomatic tick-borne infections are a common feature in wild herbivores. In human-dominated habitats, snare injuries to wild herbivores are common and are likely to co-occur with enzootic infections. The influence of injury on pattern, course and outcome of enzootic infection in wild herbivores is unknown. We identified Theileria species infecting zebra and assessed the relationship between host injury-status and parasitaemia, parasite diversity and selection regimes. We also determined host leucocyte differential as this can reveal mechanisms by which injuries influence infections. Theileria infecting zebra was identified using PCR and sequencing of the V4 region of the 18 s rRNA gene and confirmed with phylogenetic analyses. The influence of injury status on parasite infection patterns, genetic diversity and selection were assessed using population genetic tools. Parasitaemia estimated from prevalence and leucocyte differential were determined from microscopic examination of Giemsa stained thin blood smears. Phylogenetic and sequence analyses revealed that the zebra population studied was infected with three Theileria equi haplotypes. Parasitaemia was lower among injured compared to non-injured animals and lower during dry than wet season. Mean (+/-SD) genetic diversity was 0.386 (+/-0.128) in injured and 0.513 (+/-0.144) in non-injured zebra (P = .549). Neutrality tests indicated that T. equi is under strong purifying selection in injured females (Li & Fu's D* = -2.037) and demographic expansion in all zebra during the wet season (Tajima D = -1.904). Injured zebras had a higher median per cent of neutrophils (64% vs 37%) a lower median per cent of basophils (0% vs 1%) and eosinophils (2% vs 4.5%) than non-injured animals, suggesting a heightened immune response and a shift from a Th2 to Th1 T-Cell response favoring the elimination of intracellular parasites in injured animals. This study demonstrates the utility of population genetics in revealing factors influencing parasite diversity and infection patterns. PMID- 29337257 TI - A comparison of the embryonic stem cell test and whole embryo culture assay combined with the BeWo placental passage model for predicting the embryotoxicity of azoles. AB - In the present study, we show the value of combining toxico-dynamic and -kinetic in vitro approaches for embryotoxicity testing of azoles. Both the whole embryo culture (WEC) and the embryonic stem cells test (EST) predicted the in vivo potency ranking of twelve tested azoles with moderate accuracy. Combining these results with relative placental transfer rates (Papp values) as determined in the BeWo cell culture model, increased the predictability of both WEC and EST, with R2 values increasing from 0.51 to 0.87 and from 0.35 to 0.60, respectively. The comparison of these in vitro systems correlated well (R2 = 0.67), correctly identifying the in vivo strong and weak embryotoxicants. Evaluating also specific gene responses related with the retinoic acid and sterol biosynthesis pathways, which represent the toxicological and fungicidal mode of action of azoles respectively in the WEC and EST, we observed that the differential regulation of Dhrs3 and Msmo1 reached higher magnitudes in both systems compared to Cyp26a1 and Cyp51. Establishing sensitive biomarkers across the in vitro systems for studying the underlying mechanism of action of chemicals, such as azoles, is valuable for comparing alternative in vitro models and for improving insight in the mechanism of developmental toxicity of chemicals. PMID- 29337259 TI - Mathematical modeling of tumor-induced immunosuppression by myeloid-derived suppressor cells: Implications for therapeutic targeting strategies. AB - Myeloid-derived suppressor cells (MDSCs) belong to immature myeloid cells that are generated and accumulated during the tumor development. MDSCs strongly suppress the anti-tumor immunity and provide conditions for tumor progression and metastasis. In this study, we present a mathematical model based on ordinary differential equations (ODE) to describe tumor-induced immunosuppression caused by MDSCs. The model consists of four equations and incorporates tumor cells, cytotoxic T cells (CTLs), natural killer (NK) cells and MDSCs. We also provide simulation models that evaluate or predict the effects of anti-MDSC drugs (e.g., l-arginine and 5-Fluorouracil (5-FU)) on the tumor growth and the restoration of anti-tumor immunity. The simulated results obtained using our model were in good agreement with the corresponding experimental findings on the expansion of splenic MDSCs, immunosuppressive effects of these cells at the tumor site and effectiveness of l-arginine and 5-FU on the re-establishment of antitumor immunity. Regarding this latter issue, our predictive simulation results demonstrated that intermittent therapy with low-dose 5-FU alone could eradicate the tumors irrespective of their origins and types. Furthermore, at the time of tumor eradication, the number of CTLs prevailed over that of cancer cells and the number of splenic MDSCs returned to the normal levels. Finally, our predictive simulation results also showed that the addition of l-arginine supplementation to the intermittent 5-FU therapy reduced the time of the tumor eradication and the number of iterations for 5-FU treatment. Thus, the present mathematical model provides important implications for designing new therapeutic strategies that aim to restore antitumor immunity by targeting MDSCs. PMID- 29337261 TI - Heart rate variability alters cardiac repolarization and electromechanical dynamics. AB - Heart rate continuously varies due to autonomic regulation, stochasticity in pacemaking, and circadian rhythm, collectively termed heart rate variability (HRV), during normal physiological conditions. Low HRV is clinically associated with an elevated risk of cardiac arrhythmias. Alternans, a beat-to-beat alternation in action potential duration (APD) and/or intracellular calcium (Ca) transient, is a well-known risk factor associated with cardiac arrhythmias that is typically studied under conditions of a constant pacing rate, i.e., the absence of HRV. In this study, we investigate the effects of HRV on the interplay between APD, Ca, and electromechanical properties, employing a nonlinear discrete time map model that governs APD and intracellular Ca cycling with a stochastic pacing period. We find that HRV can decrease variation in APD and peak Ca at fast pacing rates for which alternans is present. Further, increased HRV typically disrupts the alternating pattern for both APD and peak Ca and weakens the correlation between APD and peak Ca, thus decoupling Ca-mediated instabilities from repolarization alternation. We find that the efficacy of these effects is regulated by the sarcoplasmic reticulum Ca uptake rate. Overall, these results demonstrate that HRV disrupts arrhythmogenic alternans and suggests that HRV may be a significant factor in preventing life-threatening arrhythmias. PMID- 29337260 TI - Modelling and simulation of biased agonism dynamics at a G protein-coupled receptor. AB - Theoretical models of G protein-coupled receptor (GPCR) concentration-response relationships often assume an agonist producing a single functional response via a single active state of the receptor. These models have largely been analysed assuming steady-state conditions. There is now much experimental evidence to suggest that many GPCRs can exist in multiple receptor conformations and elicit numerous functional responses, with ligands having the potential to activate different signalling pathways to varying extents-a concept referred to as biased agonism, functional selectivity or pluri-dimensional efficacy. Moreover, recent experimental results indicate a clear possibility for time-dependent bias, whereby an agonist's bias with respect to different pathways may vary dynamically. Efforts towards understanding the implications of temporal bias by characterising and quantifying ligand effects on multiple pathways will clearly be aided by extending current equilibrium binding and biased activation models to include G protein activation dynamics. Here, we present a new model of time dependent biased agonism, based on ordinary differential equations for multiple cubic ternary complex activation models with G protein cycle dynamics. This model allows simulation and analysis of multi-pathway activation bias dynamics at a single receptor for the first time, at the level of active G protein (alphaGTP), towards the analysis of dynamic functional responses. The model is generally applicable to systems with NG G proteins and N* active receptor states. Numerical simulations for NG=N*=2 reveal new insights into the effects of system parameters (including cooperativities, and ligand and receptor concentrations) on bias dynamics, highlighting new phenomena including the dynamic inter-conversion of bias direction. Further, we fit this model to 'wet' experimental data for two competing G proteins (Gi and Gs) that become activated upon stimulation of the adenosine A1 receptor with adenosine derivative compounds. Finally, we show that our model can qualitatively describe the temporal dynamics of this competing G protein activation. PMID- 29337262 TI - Longitudinal patterns and response lengths of algae in riverine ecosystems: A model analysis emphasising benthic-pelagic interactions. AB - In riverine ecosystems primary production is principally possible in two habitats: in the benthic layer by sessile algae and in the surface water by planktonic algae being transported downstream. The relevance of these two habitats generally changes along the rivers' continuum. However, analyses of the interaction of algae in these two habitats and their controlling factors in riverine ecosystems are, so far, very rare. We use a simplified advection diffusion model system combined with ecological process kinetics to analyse the interaction of benthic and planktonic algae and nutrients along idealised streams and rivers at regional to large scales. Because many of the underlying processes affecting algal dynamics are influenced by depth, we focus particularly on the impact of river depth on this interaction. At constant environmental conditions all state variables approach stable spatial equilibria along the river, independent of the boundary conditions at the upstream end. Because our model is very robust against changes of turbulent diffusion and stream velocity, these spatial equilibria can be analysed by a simplified ordinary differential equation (ode) version of our model. This model variant reveals that at shallower river depths, phytoplankton can exist only when it is subsidised by detaching benthic algae, and in turn, at deeper river depths, benthic algae can exist only in low biomasses which are subsidised by sinking planktonic algae. We generalise the spatial dynamics of the model system using different conditions at the upstream end of the model, which mimic various natural or anthropogenic factors (pristine source, dam, inflow of a waste water treatment plant, and dilution from e.g. a tributary) and analyse how these scenarios influence different aspects of the longitudinal spatial dynamics of the full spatial model: the relation of spatial equilibrium to spatial maximum, the distance to the spatial maximum, and the response length. Generally, our results imply that shallow systems recover within significantly shorter distances from spatially distinct disturbances when compared to deep systems, independent of the type of disturbance. PMID- 29337263 TI - iMem-2LSAAC: A two-level model for discrimination of membrane proteins and their types by extending the notion of SAAC into chou's pseudo amino acid composition. AB - Membrane proteins execute significant roles in cellular processes of living organisms, ranging from cell signaling to cell adhesion. As a major part of a cell, the identification of membrane proteins and their functional types become a challenging job in the field of bioinformatics and proteomics from last few decades. Traditional experimental procedures are slightly applicable due to lack of recognized structures, enormous time and space. In this regard, the demand for fast, accurate and intelligent computational method is increased day by day. In this paper, a two-tier intelligent automated predictor has been developed called iMem-2LSAAC, which classifies protein sequence as membrane or non-membrane in first-tier (phase1) and in case of membrane the second-tier (phase2) identifies functional types of membrane protein. Quantitative attributes were extracted from protein sequences by applying three discrete features extraction schemes namely amino acid composition, pseudo amino acid composition and split amino acid composition (SAAC). Various learning algorithms were investigated by using jackknife test to select the best one for predictor. Experimental results exhibited that the highest predictive outcomes were yielded by SVM in conjunction with SAAC feature space on all examined datasets. The true classification rate of iMem-2LSAAC predictor is significantly higher than that of other state-of- the- art methods so far in the literature. Finally, it is expected that the proposed predictor will provide a solid framework for the development of pharmaceutical drug discovery and might be useful for researchers and academia. PMID- 29337264 TI - Indirect reciprocity with negative assortment and limited information can promote cooperation. AB - Cooperation is ubiquitous in biological and social systems, even though cooperative behavior is often costly and at risk of exploitation by non cooperators. Several studies have demonstrated that indirect reciprocity, whereby some members of a group observe the behaviors of their peers and use this information to discriminate against previously uncooperative agents in the future, can promote prosocial behavior. Some studies have shown that differential propensities of interacting among and between different types of agents (interaction assortment) can increase the effectiveness of indirect reciprocity. No previous studies have, however, considered differential propensities of observing the behaviors of different types of agents (information assortment). Furthermore, most previous studies have assumed that discriminators possess perfect information about others and incur no costs for gathering and storing this information. Here, we (1) consider both interaction assortment and information assortment, (2) assume discriminators have limited information about others, and (3) introduce a cost for information gathering and storage, in order to understand how the ability of discriminators to stabilize cooperation is affected by these steps toward increased realism. We report the following findings. First, cooperation can persist when agents preferentially interact with agents of other types or when discriminators preferentially observe other discriminators, even when they have limited information. Second, contrary to intuition, increasing the amount of information available to discriminators can exacerbate defection. Third, introducing costs of gathering and storing information makes it more difficult for discriminators to stabilize cooperation. Our study is one of only a few studies to date that show how negative interaction assortment can promote cooperation and broadens the set of circumstances in which it is know that cooperation can be maintained. PMID- 29337265 TI - 99mTc-vinorelbine tartrate loaded spherulites: Lung disposition study in Sprague Dawley rats by gamma scintigraphy. AB - Vinorelbine Tartrate (VLB) is the first line chemotherapeutic agent for treatment of Non-Small Cell Lung Cancer, whose non-specific distribution causes unwanted side effects. The aim of the present investigation was to formulate VLB loaded spherulites intended for targeting the lung. Spherulites were composed of Soyabean Phosphatidylcholine (SPC), Cholesterol (Chol), Potassium oleate and Mannitol. Lipid film prepared using SPC, Chol and Potassium oleate, was dispersed in aqueous phase comprising Mannitol and VLB, followed by controlled shearing and extrusion. PEGylated Spherulites were prepared by incorporating 1,2-distearoyl-sn glycero-3 phosphatidylethanolamine-N-[methoxy poly (ethylene glycol)] (DSPE-PEG 2000) in the lipid phase. Vesicles were characterized for size, entrapment efficiency and drug release. In vitro cell cytotoxicity and apoptosis study were performed on A549 cell line. Radiolabeling of VLB was performed by direct labeling with reduced technetium-99m. Binding affinity of 99mTc- labelled complexes was assessed by diethylenetriaminepenta acetic acid (DTPA) challenge test. Biodistribution study was done in Sprague Dawley rats. Dynamic light scattering and Transmission electron micrographs confirmed that PEGylated and non PEGylated Spherulites were discrete, spherical and exhibited the size range of 120-130 nm. Non-PEGylated and PEGylated Spherulites had an entrapment efficiency of 95.65% and 94.2% respectively. In vitro drug release study indicated VLB plain drug solution diffused completely within 24 h, however, Non-PEGylated and PEGylated Spherulites showed similar release pattern till 48 h. Results of cell line study showed that cells treated with VLB loaded Spherulites showed more cytotoxicity and underwent high degree of apoptosis at lower concentration compared to the VLB solution. Radiolabeled complex was stable in saline and serum, further, DTPA challenge study ensured the high binding strength. Gamma Scintigraphy displayed that PEGylated Spherulites were localized within lungs at higher concentration than non-PEGylated followed by plain drug. PMID- 29337266 TI - Comparison of the in vitro pharmacological profiles of long-acting muscarinic antagonists in human bronchus. AB - BACKGROUND AND PURPOSE: Long-acting muscarinic antagonists (LAMAs) have been recommended for the treatment of chronic obstructive pulmonary disease and (more recently) asthma. However, the in vitro pharmacological profiles of the four LAMAs currently marketed (tiotropium, umeclidinium, aclidinium and glycopyrronium) have not yet been compared (relative to ipratropium) by using the same experimental approach. EXPERIMENTAL APPROACH: With a total of 560 human bronchial rings, we investigated the antagonists' potency, onset and duration of action for inhibition of the contractile response evoked by electrical field stimulation. We also evaluated the antagonists' potency for inhibiting cumulative concentration-contraction curves for acetylcholine and carbachol. KEY RESULTS: The onset and duration of action were concentration-dependent. At submaximal, equipotent concentrations, the antagonists' onsets of action were within the same order of magnitude. However, the durations of action differed markedly. After washout, ipratropium's inhibitory activity decreased rapidly (within 30-90 min) but those of tiotropium and umeclidinium remained stable (at above 70%) for at least 9 h. Aclidinium and glycopyrronium displayed less stable inhibitory effects, with a progressive loss of inhibition at submaximal concentrations. In contrast to ipratropium, all the LAMAs behaved as insurmountable antagonists by decreasing the maximum responses to both acetylcholine and carbachol. CONCLUSIONS AND IMPLICATIONS: The observed differences in the LAMAs' in vitro pharmacological profiles in the human bronchus provide a compelling pharmacological rationale for the differences in the drugs' respective recommended daily doses and frequencies of administration. PMID- 29337267 TI - Acute lung injury induced by intestinal ischemia and reperfusion is altered in obese female mice. AB - RATIONAL: Acute lung injury (ALI) is a common complication after intestinal ischemia and reperfusion (I/R) injury that can lead to acute respiratory distress syndrome (ARDS). We have previously demonstrated that females are protected against lung damage induced by intestinal I/R through an estrogen mediated mechanism. OBJECTIVES: To investigate the effect of obesity on ALI induced by intestinal I/R in female mice. METHODS: C57Bl/6 female mice were fed with a standard low-fat diet (SD) or a high-fat diet (HFD) for 9 weeks. Intestinal I/R injury was induced by a 45 min occlusion of the mesenteric artery followed by 2 and 24 h of reperfusion. RESULTS: Significant increase in lung myeloperoxidase expression (MPO) and neutrophil numbers of SD and HFD mice occurred at 2 h and 24 h of reperfusion. Furthermore, HFD mice presented a significant increase in lung eosinophil peroxidase (EPO) expression and eosinophil numbers compared to SD mice. Lung wet/dry weight ratio was significantly greater in HFD mice at 2 and 24 h of reperfusion, accompanied by a significant increase in the expression of inducible NO in the lung tissue and a significant decrease in arterial oxygen saturation at 24 h of reperfusion relative to SD mice. CONCLUSION: Obesity predisposes female mice to increased pulmonary oedema and deterioration in gas exchange, which is accompanied by an increase in iNOS expression in the lung. PMID- 29337268 TI - The double-sidedness of cough in the elderly. AB - Cough is a physiological reflex to protect airways against aspiration, but also it is one of the most frequent problems that lead patients to seek medical care. Chronic cough is more prevalent in the elderly than younger subjects, and more challenging to manage due to frequent comorbidities and possible side effects from drug treatment. Meanwhile, cough reflex does not decrease with natural aging but is often impaired by pathologic conditions like stroke. The impairment in cough reflex may lead to fatal complication like aspiration pneumonia. In this paper, we reviewed epidemiology and clinical considerations for chronic cough in the elderly, and summarized aging-related changes in cough reflex and also possible ways to normalize cough reflex and prevent aspiration pneumonia. PMID- 29337269 TI - Inhibitors of phosphodiesterases in the treatment of cough. AB - A group of 11 enzyme families of metalophosphohydrolases called phosphodiesterases (PDEs) is responsible for a hydrolysis of intracellular cAMP and cGMP. Xanthine derivatives (methylxanthines) inhibit PDEs without selective action on their single isoforms and lead to many pharmacological effects, e.g. bronchodilation, anti-inflammatory and immunomodulating effects, and thus they can modulate the cough reflex. Contrary, selective PDE inhibitors have been developed to inhibit PDE isoforms with different pharmacological effects based on their tissue expression. In this paper, effects of non-selective PDE inhibitors (e.g. theophylline) are discussed, with a description of other putative mechanisms in their effects on cough. Antitussive effects of selective inhibitors of several PDE isoforms are reviewed, focusing on PDE1, PDE3, PDE4, PDE5 and PDE7. The inhibition of PDEs suggests participation of bronchodilation, suppression of TRPV channels and anti-inflammatory action in cough suppression. Selective PDE3, PDE4 and PDE5 inhibitors have demonstrated the most significant cough suppressive effects, confirming their benefits in chronic inflammatory airway diseases associated with bronchoconstriction and cough. PMID- 29337270 TI - The cationic tetradecapeptide mastoparan as a privileged structure for drug discovery: Enhanced antimicrobial properties of mitoparan analogues modified at position-14. AB - Mastoparan (MP) peptides, distributed in insect venoms, induce a local inflammatory response post envenomation. Most endogenous MPs share common structural elements within a tetradecapeptide sequence that adopts an amphipathic helix whilst traversing biological membranes and when bound to an intracellular protein target. Rational modifications to increase cationic charge density and amphipathic helicity engineered mitoparan (MitP), a mitochondriotoxic bioportide and potent secretagogue. Following intracellular translocation, MitP is accreted by mitochondria thus indicating additional utility as an antimicrobial agent. Hence, the objectives of this study were to compare the antimicrobial activities of a structurally diverse set of cationic cell penetrating peptides, including both MP and MitP sequences, and to chemically engineer analogues of MitP for potential therapeutic applications. Herein, we confirm that, like MP, MitP is a privileged structure for the development of antimicrobial peptides active against both prokaryotic and eukaryotic pathogens. Collectively, MitP and target selective chimeric analogues are broad spectrum antibiotics, with the Gram negative A. baumannii demonstrating particular susceptibility. Modifications of MitP by amino acid substitution at position-14 produced peptides, Delta14MitP analogues, with unique pharmacodynamic properties. One example, [Ser14]MitP, lacks both cytotoxicity against human cell lines and mast cell secretory activity yet retains selective activity against the encapsulated yeast C. neoformans. PMID- 29337271 TI - RFRP-3, the mammalian ortholog of GnIH, induces cell cycle arrest at G2/M in porcine ovarian granulosa cells. AB - RFamide-related peptide-3 (RFRP-3), the mammalian ortholog of gonadotropin inhibitory hormone (GnIH), has been proposed as a key inhibitory regulator of mammal reproduction. Our previous studies have demonstrated that RFRP-3 inhibited the expression of proliferation-related proteins in porcine granulose cells (GCs), but the inhibitory mechanism causing this has not been discovered. Here, we aim to elucidate the underlying mechanism and determine the cell cycle regulatory sites of action of RFRP-3 on porcine GC proliferation. To this end, the viability of porcine GCs was initially estimated by cell counting kit-8 (CCK 8). We confirmed that different doses of RFRP-3 decreased the cellular viability, suggesting that RFRP-3 could inhibit the proliferation of GCs. Subsequently, we evaluated the direct effects of RFRP-3 on the expression of cell cycle regulators. Compared to the control treated cells, 10-6 and 10-8 M of RFRP-3 effectively reduced the transcription of Cyclin B1 and CDK1 mRNAs. However, treatment with RFRP-3 did not alter Cyclin A2, Cyclin D1, CDK2, or CDK4 mRNA levels. These results suggest that RFRP-3 might be inducing G2/M-phase arrest in porcine GCs. Finally, to further determine the molecular mechanism underlying RFRP-3-mediated G2/M cell cycle arrest, we observed the levels of G2/M cell cycle regulatory factors in RFRP-3-treated porcine GCs. The results showed that RFRP-3 treatment significantly increased the expression of Myt1, p-Wee1 and p-Cdc2, whereas the level of Cyclin B1 significantly decreased in porcine GCs treated with 10-6 M of RFRP-3. Taken together, our data suggest that RFRP-3 regulates the phosphorylation or expression of G2/M cell cycle regulatory factors to induce G2/M-phase arrest via inhibition Cyclin B-CDK1 complex activation in porcine GCs, which might provide an unfavorable condition for porcine GC proliferation. PMID- 29337272 TI - Circulating adipokines and mRNA expression in adipose tissue and the placenta in women with gestational diabetes mellitus. AB - Maternal adipose tissue and the placenta secrete various molecules commonly called adipokines such as chemerin, omentin-1, visfatin, adiponectin, and leptin that are important players in the pathogenesis of insulin resistance. Gestational diabetes mellitus (GDM) is defined as a state of glucose intolerance characterized by beta-cell dysfunction and insulin resistance. To examine whether circulating adipokines and their mRNA expression in the adipose tissue and the placenta are altered in GDM pregnancy, we compared 15 GDM women [obese (BMI > 30) and non-obese (BMI < 30)] to 23 NGT (normal glucose tolerance) women [obese and non-obese], at the time of the Cesarean section. Circulating chemerin and leptin were higher (p = 0.009 and p = 0.005, respectively) and circulating omentin-1, visfatin, as well as the adiponectin/leptin ratio were lower (p = 0.039, p = 0.007 and p = 0.011, respectively) in GDM-obese compared to NGT-non-obese women. Chemerin and leptin correlated positively with BMI and HOMA-IR and omentin-1 correlated negatively with BMI. Serum TNF-alpha was significantly elevated in all obese compared to non-obese pregnant women and correlated positively with BMI. Adiponectin levels were reduced -although not significantly- in GDM- and NGT obese women compared to their non-obese counterparts. Resistin, RPB4 and IL-6 levels did not differ significantly between groups. Chemerin mRNA expression in subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) was significantly higher compared to placenta in all women (6-to 24-times, p < 0.05). Chemerin-VAT mRNA expression in GDM-obese tended to be significantly higher compared to NGT-non-obese women (3-times, p = 0.005). Omentin-1 mRNA expression was significantly higher in VAT compared to SAT (50- to 100-times, p < 0.01) and its expression in placenta was negligible in all women. Although, leptin was expressed significantly higher in SAT compared to VAT and the placenta in all women (5- to 46-times, p < 0.05), only its mRNA expression in VAT of obese (GDM and NGT) differed significantly when compared to NGT-non-obese women (3-times higher, p < 0.02). Visfatin mRNA expression was comparable in all tissues. In conclusion, chemerin and leptin are elevated and omentin-1 and visfatin levels are decreased in GDM women complicated by obesity. This finding together with the positive association of chemerin and leptin with markers of insulin resistance, suggests that these adipokines and more especially chemerin and leptin accompanied by their adipose tissue expression could contribute to the increased insulin resistance and low grade inflammation that characterizes GDM-obese women. PMID- 29337273 TI - Identification of epistatic mutations and insights into the evolution of the influenza virus using a mass-based protein phylogenetic approach. AB - A mass-based protein phylogenetic approach developed in this laboratory has been applied to study mutation trends and identify consecutive or near-consecutive mutations typically associated with positive epistasis. While epistasis is thought to occur commonly during the evolution of viruses, the extent of epistasis in influenza, and its role in the evolution of immune escape and drug resistant mutants, remains to be systematically investigated. Here putative epistatic mutations within H3 hemagglutinin in type A influenza are identified where leading parent mutations were found to predominate within reported antigenic sites of the protein. Frequent subsequent mutations resided exclusively in different antigenic regions, providing the virus with a possible immune escape mechanism, or at other remote sites that drive beneficial protein structural and functional change. The results also enable a "small steps" evolutionary model to be proposed where the more frequent consecutive, or near-consecutive, non conservative mutations exhibited less structural, and thus functional, change. This favours the evolutionary survival of the virus over mutations associated with more substantive change that may cause or risk its own extinction. PMID- 29337274 TI - Species delimitation of the North American orchard-spider Leucauge venusta (Walckenaer, 1841) (Araneae, Tetragnathidae). AB - The orchard spider, Leucauge venusta (Walckenaer, 1841) is one of the most common and abundant orb-weavers in North America. This species has a broad geographic distribution extending across tropical and temperate regions of the Americas from Canada to Brazil. Guided by a preliminary observation of the barcode gap between sequences from specimens of L. venusta collected in Florida and other North American localities, we collected across a transect through the southeastern USA to investigate the observed genetic divide. The dataset, complemented with additional samples from Mexico, and Brazil was analyzed for species delimitation using STACEY and bGMYC based on sequences from one nuclear (ITS2) and one mitochondrial marker (COI). The analyses clearly separate USA samples into two deeply divergent and geographically structured groups (north-south) which we interpret as two different species. We generated ecological niche models for these two groups rejecting a niche equivalence hypothesis for these lineages. Taxonomic changes are proposed based on these findings, Leucauge venusta is restricted to denote the northern clade, and its known distribution restricted to the USA. Leucauge argyrobapta (White, 1841) is removed from synonymy to denote the populations in Florida, Mexico and Brazil. Although the delimitation analyses suggest each of these geographic clusters within the L. argyrobapta samples represent different species, more specimens from Central and South America are needed to properly test the cohesion of L. argyrobapta populations. PMID- 29337275 TI - The O-beta-linked N-acetylglucosaminylation of the Lamin B receptor and its impact on DNA binding and phosphorylation. AB - : Lamin B Receptor (LBR) is an integral protein of the interphase inner nuclear membrane that is implicated in chromatin anchorage to the nuclear envelope. Phosphorylation of a stretch of arginine-serine (RS) dipeptides in the amino terminal nucleoplasmic domain of LBR regulates the interactions of the receptor with other nuclear proteins, DNA and RNA and thus modulates tethering of heterochromatin to the nuclear envelope. While phosphorylation has been extensively studied, very little is known about other post-translational modifications of the protein. There is only one report on the O-beta-linked N acetyl-glucosaminylation (O-GlcNAcylation) of a serine residue downstream of the RS domain of rat LBR. In the present study we identify additional O-GlcNAcylation sites by using as substrates of O-beta-N-acetylglucosaminyltransferase (OGT) a set of peptides containing the entire LBR RS domain or parts of it as well as flanking sequences. The in vitro activity of OGT was assessed by tandem mass spectrometry and NMR spectroscopy. Furthermore, we provide evidence that O GlcNAcylation hampers DNA binding while it marginally affects RS domain phosphorylation mediated by SRPK1, Akt2 and cdk1 kinases. GENERAL SIGNIFICANCE: Our methodology providing a quantitative description of O-GlcNAc patterns based on a combination of mass spectrometry and high resolution NMR spectroscopy on short peptide substrates allows subsequent functional analyses. Hence, our approach is of general interest to a wide audience of biologists aiming at deciphering the functional role of O-GlcNAc glycosylation and its crosstalk with phosphorylation. PMID- 29337276 TI - Validation of diffusion MRI estimates of compartment size and volume fraction in a biomimetic brain phantom using a human MRI scanner with 300 mT/m maximum gradient strength. AB - Diffusion microstructural imaging techniques have attracted great interest in the last decade due to their ability to quantify axon diameter and volume fraction in healthy and diseased human white matter. The estimates of compartment size and volume fraction continue to be debated, in part due to the lack of a gold standard for validation and quality control. In this work, we validate diffusion MRI estimates of compartment size and volume fraction using a novel textile axon ("taxon") phantom constructed from hollow polypropylene yarns with distinct intra and extra-taxonal compartments to mimic white matter in the brain. We acquired a comprehensive set of diffusion MRI measurements in the phantom using multiple gradient directions, diffusion times and gradient strengths on a human MRI scanner equipped with maximum gradient strength (Gmax) of 300 mT/m. We obtained estimates of compartment size and restricted volume fraction through a straightforward extension of the AxCaliber/ActiveAx frameworks that enables estimation of mean compartment size in fiber bundles of arbitrary orientation. The voxel-wise taxon diameter estimates of 12.2 +/- 0.9 MUm were close to the manufactured inner diameter of 11.8 +/- 1.2 MUm with Gmax = 300 mT/m. The estimated restricted volume fraction demonstrated an expected decrease along the length of the fiber bundles in accordance with the known construction of the phantom. When Gmax was restricted to 80 mT/m, the taxon diameter was overestimated, and the estimates for taxon diameter and packing density showed greater uncertainty compared to data with Gmax = 300 mT/m. In conclusion, the compartment size and volume fraction estimates resulting from diffusion measurements on a human scanner were validated against ground truth in a phantom mimicking human white matter, providing confidence that this method can yield accurate estimates of parameters in simplified but realistic microstructural environments. Our work also demonstrates the importance of a biologically analogous phantom that can be applied to validate a variety of diffusion microstructural imaging methods in human scanners and be used for standardization of diffusion MRI protocols for neuroimaging research. PMID- 29337277 TI - Compensatory dopaminergic-cholinergic interactions in conflict processing: Evidence from patients with Parkinson's disease. AB - Executive functions are complex both in the cognitive operations involved and in the neural structures and functions that support those operations. This complexity makes executive function highly vulnerable to the detrimental effects of aging, brain injury, and disease, but may also open paths to compensation. Neural compensation is often used to explain findings of additional or altered patterns of brain activations by older adults or patient populations compared to young adults or healthy controls, especially when associated with relatively preserved performance. Here we test the hypothesis of an alternative form of compensation, between different neuromodulator systems. 135 patients with Parkinson's Disease (PD) completed vesicular monoamine transporter type2 (VMAT2) and acetylcholinesterase PET scanning to assess the integrity of nigrostriatal dopaminergic, thalamic cholinergic, and cortical cholinergic pathways, and a behavioral test (Stroop + task-switching) that puts high demands on conflict processing, an important aspect of executive control. Supporting the compensatory hypothesis, regression models controlling for age and other covariates revealed an interaction between caudate dopamine and cortical cholinergic integrity: Cortical cholinergic integrity was a stronger predictor of conflict processing in patients with relatively low caudate dopaminergic function. These results suggest that although frontostriatal dopaminergic function plays a central role in executive control, cholinergic systems may also make an important contribution. The present results suggest potential pathways for remediation, and that the appropriate interventions for each patient may depend on their particular profile of decline. Furthermore, they help to elucidate the brain systems that underlie executive control, which may be important for understanding other disorders as well as executive function in healthy adults. PMID- 29337278 TI - Effects of hunger state on the brain responses to food cues across the life span. AB - The abundant exposure to food cues in our environment is one of the main drivers of overconsumption. Food evaluation is important for the regulation of food intake by the brain and it's interaction with hunger state. Children are especially susceptible to food cues. Understanding the mechanisms behind this regulation in healthy individuals across the life span can help to elucidate the mechanisms underlying overconsumption and aid the development of future obesity prevention strategies. Few functional neuroimaging studies have been done in children and elderly. Furthermore, it is unknown how hunger state affects neural food cue reactivity in these groups, since this has not been examined consistently. We examined the effects of hunger state and age on the brain responses to low- and high calorie foods. On two mornings, 122 participants (17 children; 38 teens; 36 adults; 31 elderly) performed a food image viewing task while being scanned using fMRI, either fasted or sated. Hunger induced greater activation during high versus low calorie food image viewing than satiety in the bilateral dorsomedial (dmPFC) and in the right dorsolateral prefrontal cortex (dlPFC) across all age groups. There was no significant main effect of age group on high versus low calorie food image viewing and no interaction between age group and hunger state. The greater activation of the dlPFC across all age groups during high calorie food image viewing in a fasted state might reflect increased inhibitory control in response to these foods. This may underlie the ability to resist overconsumption of high calorie foods. Furthermore, increased medial prefrontal cortex activation during hunger might reflect increased reward value of high calorie foods, which declines with satiation. Further studies are needed to better understand these results. Notably, overweight and obese individuals should be included to examine whether these responses are altered by weight status across the life span. PMID- 29337279 TI - Suprathreshold fiber cluster statistics: Leveraging white matter geometry to enhance tractography statistical analysis. AB - This work presents a suprathreshold fiber cluster (STFC) method that leverages the whole brain fiber geometry to enhance statistical group difference analyses. The proposed method consists of 1) a well-established study-specific data-driven tractography parcellation to obtain white matter tract parcels and 2) a newly proposed nonparametric, permutation-test-based STFC method to identify significant differences between study populations. The basic idea of our method is that a white matter parcel's neighborhood (nearby parcels with similar white matter anatomy) can support the parcel's statistical significance when correcting for multiple comparisons. We propose an adaptive parcel neighborhood strategy to allow suprathreshold fiber cluster formation that is robust to anatomically varying inter-parcel distances. The method is demonstrated by application to a multi-shell diffusion MRI dataset from 59 individuals, including 30 attention deficit hyperactivity disorder patients and 29 healthy controls. Evaluations are conducted using both synthetic and in-vivo data. The results indicate that the STFC method gives greater sensitivity in finding group differences in white matter tract parcels compared to several traditional multiple comparison correction methods. PMID- 29337281 TI - Clinical Significance of Early Fluid and Weight Change During Acute Heart Failure Hospitalization. AB - AIMS: To explore the association of changes in weight and fluid during treatment for acute heart failure (AHF) with clinical endpoints. METHODS AND RESULTS: Weight and net fluid changes recorded at 72-96 hours in 708 AHF patients enrolled in Diuretic Optimization Strategy Evaluation in Acute Decompensated Heart Failure, Cardiorenal Rescue Study in Acute Decompensated Heart Failure, and Renal Optimization Strategies Evaluation in Acute Heart Failure studies were compared with freedom from congestion at 72-96 hours and a composite endpoint of death, rehospitalization, and unplanned hospital visit at 60 days. Weight loss was concordant with net fluid loss in 55%, discordant and less than expected for fluid loss in 34%, and paradoxically discordant or more than expected for fluid loss in 11% of patients. Weight loss, but not fluid loss, was associated with freedom from congestion (odds ratio per 1-kg weight loss = 1.11 [1.03-1.19]) and a nominal reduction in the composite endpoint (hazard ratio per 1-kg weight loss = 0.98 [0.95-1.00]). Outcomes were similar in patients with concordant and discordant weight-fluid loss. CONCLUSION: During treatment for AHF, early changes in weight may be more useful for identifying response to therapy and for predicting outcomes than net fluid output. Nearly one-half of patients receiving decongestive therapies demonstrate discordant changes in weight and fluid; however, discordance was not associated with outcomes. PMID- 29337280 TI - Behavioral interventions for reducing head motion during MRI scans in children. AB - A major limitation to structural and functional MRI (fMRI) scans is their susceptibility to head motion artifacts. Even submillimeter movements can systematically distort functional connectivity, morphometric, and diffusion imaging results. In patient care, sedation is often used to minimize head motion, but it incurs increased costs and risks. In research settings, sedation is typically not an ethical option. Therefore, safe methods that reduce head motion are critical for improving MRI quality, especially in high movement individuals such as children and neuropsychiatric patients. We investigated the effects of (1) viewing movies and (2) receiving real-time visual feedback about head movement in 24 children (5-15 years old). Children completed fMRI scans during which they viewed a fixation cross (i.e., rest) or a cartoon movie clip, and during some of the scans they also received real-time visual feedback about head motion. Head motion was significantly reduced during movie watching compared to rest and when receiving feedback compared to receiving no feedback. However, these results depended on age, such that the effects were largely driven by the younger children. Children older than 10 years showed no significant benefit. We also found that viewing movies significantly altered the functional connectivity of fMRI data, suggesting that fMRI scans during movies cannot be equated to standard resting-state fMRI scans. The implications of these results are twofold: (1) given the reduction in head motion with behavioral interventions, these methods should be tried first for all clinical and structural MRIs in lieu of sedation; and (2) for fMRI research scans, these methods can reduce head motion in certain groups, but investigators must keep in mind the effects on functional MRI data. PMID- 29337282 TI - Comparative proteome analysis of monolayer and spheroid culture of canine osteosarcoma cells. AB - : Osteosarcoma is an aggressive bone tumor with high metastasis rate in the lungs and affects both humans and dogs in a similar way. Three-dimensional tumor cell cultures mimic the in vivo situation of micro-tumors and metastases and are therefore better experimental in vitro models than the often applied two dimensional monolayer cultures. The aim of the present study was to perform comparative proteomics of standard monolayer cultures of canine osteosarcoma cells (D17) and three-dimensional spheroid cultures, to better characterize the 3D model before starting with experiments like migration assays. Using DIGE in combination with MALDI-TOF/TOF we found 27 unique canine proteins differently represented between these two culture systems, most of them being part of a functional network including mainly chaperones, structural proteins, stress related proteins, proteins of the glycolysis/gluconeogenesis pathway and oxidoreductases. In monolayer cells, a noticeable shift to more acidic pI values was noticed for several proteins of medium to high abundance; two proteins (protein disulfide isomerase A3, stress-induced-phosphoprotein 1) showed an increase of phosphorylated protein species. Protein distribution within the cells, as detected by immunohistochemistry, displayed a switch of stress-induced phosphoprotein 1 from the cytoplasm (in monolayer cultures) to the nucleus (in spheroid cultures). Additionally, Western blot testing revealed upregulated concentrations of metastasin (S100A4), triosephosphate isomerase 1 and septin 2 in spheroid cultures, in contrast to decreased concentrations of CCT2, a subunit of the T-complex. Results indicate regulation of stress proteins in the process of three-dimensional organization characterized by a hypoxic and nutrient deficient environment comparable to tumor micro-metastases. SIGNIFICANCE: Osteosarcoma is an aggressive bone tumor that early spreads to the lungs. Three dimensional tumor cell cultures represent the avascular stage of micro-tumors and metastases, and should therefore represent a better experimental in vitro model compared to two-dimensional monolayer cultures. Significant differences have been reported in response to drug and radiation treatment between these two culture systems. A gel-based proteomic investigation was performed to compare protein patterns of a canine osteosarcoma cell line cultivated under those two conditions, to learn more about altered cell composition and its impact on cell behaviour. Due to the fact that the canine osteosarcoma is an accepted model for the human disease, results will be relevant for the human species as well. PMID- 29337283 TI - Variability studies of allochthonous stone pine (Pinus pinea L.) plantations in Chile through nut protein profiling. AB - : Stone pine (Pinus pinea) is characterized by low differentiation of growth parameters, high phenotypic plasticity and low genetic variability; detecting its diversity in introduced Chilean populations is therefore relevant for conservation and breeding programs. Here, variability among allochthonous Stone pine populations in Chile was explored using electrophoresis-based proteomic analysis of pine nuts. Cones from 30 populations distributed along a climatic gradient in Chile were surveyed and sampled, and proteins were extracted from seed flour using the TCA-acetone precipitation protocol. Extracts were subjected to SDS-PAGE and 2-DE for protein resolution, gel images captured, and spot or bands intensity quantified and subjected to statistical analysis (ANOVA, unsupervised Hierarchical Analysis Clustering and PLS regression). Protein yield ranged among populations from 161.7 (North populations) to 298.7 (South populations) mg/g dry weight. A total of 50 bands were resolved by SDS-PAGE in the 6.5-200 kDa Mr. range, of which 17 showed quantitative or qualitative differences, with 12 proteins identified. Pine nut extracts from the most distant populations were analyzed by 2-DE and a total of 129 differential spots were observed, out of which 13 were proposed as putative protein markers of variability. Out of the 129 spots, 118 proteins were identified after MALDI TOF/TOF analysis. Identified proteins were classified into two principal categories: reserve and stress related. We provide the first protein map of P. pinea nuts. The use of a proteomic approach was useful to detect variability of Stone pine across three Chilean macrozones, with correlations between protein profiles and geoclimatic parameters, suggesting a new approach to study the variability of this species. BIOLOGICAL SIGNIFICANCE: This study presents the first protein map of Stone pine nuts, relevant for the advancement of protein characterization in pine nuts. Putative protein markers are proposed, evidencing that a proteomic approach may be useful to detect variability of Stone pine across Chilean macrozones, suggesting a new approach to study the variability of this species, which may also be extrapolated to other forest fruit species. PMID- 29337284 TI - Method for identification of sensitive nodes in Boolean models of biological networks. AB - Biological systems are often represented as Boolean networks and analysed to identify sensitive nodes which on perturbation disproportionately change a predefined output. There exist different kinds of perturbation methods: perturbation of function, perturbation of state and perturbation in update scheme. Nodes may have defects in interpretation of the inputs from other nodes and calculation of the node output. To simulate these defects and systematically assess their effect on the system output, two new function perturbations, referred to as 'not of function' and 'function of not', are introduced. In the former, the inputs are assumed to be correctly interpreted but the output of the update rule is perturbed; and in the latter, each input is perturbed but the correct update rule is applied. These and previously used perturbation methods were applied to two existing Boolean models, namely the human melanogenesis signalling network and the fly segment polarity network. Through mathematical simulations, it was found that these methods successfully identified nodes earlier found to be sensitive using other methods, and were also able to identify sensitive nodes which were previously unreported. PMID- 29337285 TI - Comparison of clustering approaches with application to dual colour protein data. AB - Cells communicate with their environment via proteins, located at the plasma membrane separating the interior of a cell from its surroundings. The spatial distribution of these proteins in the plasma membrane under different physiological conditions is of importance, since this may influence their signal transmission properties. In this study, the authors compare different methods such as hierarchical clustering, extensible Markov models and the gammics method for analysing such a spatial distribution. The methods are examined in a simulation study to determine their optimal use. Afterwards, they analyse experimental imaging data and extend these methods to simulate dual colour data. PMID- 29337286 TI - Estimation of parameters for plasma glucose regulation in type-2 diabetics in presence of meal. AB - In this study, the authors propose a methodology for the estimation of glucose masses in stomach (both in solid and liquid forms), intestine, plasma and tissue; insulin masses in portal vein, liver, plasma and interstitial fluid using only plasma glucose measurement. The proposed methodology fuses glucose-insulin homoeostasis model (in the presence of meal intake) and plasma glucose measurement with a Bayesian non-linear filter. Uncertainty of the model over individual variations has been incorporated by adding process noise to the homoeostasis model. The estimation is carried out over 24 h for the healthy people as well as a type II diabetes mellitus patients. In simulation, the estimator follows the truth accurately for both the cases. Moreover, the performances of two non-linear filters, namely the unscented Kalman filter (KF) and cubature quadrature KF are compared in terms of root mean square error. The proposed methodology will be helpful in future to: (i) observe a patient's insulin-glucose profile, (ii) calculate drug dose for any hyperglycaemic patients and (iii) develop a closed-loop controller for automated insulin delivery system. PMID- 29337287 TI - Revealing determinants of two-phase dynamics of P53 network under gamma irradiation based on a reduced 2D relaxation oscillator model. AB - This study proposes a two-dimensional (2D) oscillator model of p53 network, which is derived via reducing the multidimensional two-phase dynamics model into a model of ataxia telangiectasia mutated (ATM) and Wip1 variables, and studies the impact of p53-regulators on cell fate decision. First, the authors identify a 6D core oscillator module, then reduce this module into a 2D oscillator model while preserving the qualitative behaviours. The introduced 2D model is shown to be an excitable relaxation oscillator. This oscillator provides a mechanism that leads diverse modes underpinning cell fate, each corresponding to a cell state. To investigate the effects of p53 inhibitors and the intrinsic time delay of Wip1 on the characteristics of oscillations, they introduce also a delay differential equation version of the 2D oscillator. They observe that the suppression of p53 inhibitors decreases the amplitudes of p53 oscillation, though the suppression increases the sustained level of p53. They identify Wip1 and P53DINP1 as possible targets for cancer therapies considering their impact on the oscillator, supported by biological findings. They model some mutations as critical changes of the phase space characteristics. Possible cancer therapeutic strategies are then proposed for preventing these mutations' effects using the phase space approach. PMID- 29337288 TI - Network-based method for detecting dysregulated pathways in glioblastoma cancer. AB - The knowledge on the biological molecular mechanisms underlying cancer is important for the precise diagnosis and treatment of cancer patients. Detecting dysregulated pathways in cancer can provide insights into the mechanism of cancer and help to detect novel drug targets. Based on the wide existing mutual exclusivity among mutated genes and the interrelationship between gene mutations and expression changes, this study presents a network-based method to detect the dysregulated pathways from gene mutations and expression data of the glioblastoma cancer. First, the authors construct a gene network based on mutual exclusivity between each pair of genes and the interaction between gene mutations and expression changes. Then they detect all complete subgraphs using CFinder clustering algorithm in the constructed gene network. Next, the two gene sets whose overlapping scores are above a specific threshold are merged. Finally, they obtain two dysregulated pathways in which there are glioblastoma-related multiple genes which are closely related to the two subtypes of glioblastoma. The results show that one dysregulated pathway revolving around epidermal growth factor receptor is likely to be associated with the primary subtype of glioblastoma, and the other dysregulated pathway revolving around TP53 is likely to be associated with the secondary subtype of glioblastoma. PMID- 29337289 TI - Antioxidant activity of hydrated carboxylated nanodiamonds and its influence on water gamma-radiolysis. AB - Water radiolysis involves chemical decomposition of the water molecule into free radicals after exposure to ionizing radiation. These free radicals have deleterious effects on normal cell physiology. Carboxylated nanodiamonds (cNDs) appear to modulate the deleterious effects of gamma-irradiation on the pathophysiology of red blood cells (RBCs). In the present work, the antioxidant activity of hydrated cNDs (h-cNDs) on limiting oxidative damage (the water radiolysis effect) by gamma-irradiation was confirmed. Our results show that h cNDs have remarkable free radical scavenging ability and preserve the enzymatic activity of catalase after gamma-irradiation. The underlying mechanism through which nanodiamonds exhibit antioxidant activity appears to depend on their colloidal stability. This property of detonation synthesized nanodiamonds is improved after carboxylation, which in turn influences changes in the hydrogen bond strength in water. The observed stability of h-cNDs in water and their antioxidant activity correlates with their protective effect on RBCs against gamma-irradiation. PMID- 29337290 TI - Threefold growth efficiency improvement of silica nanosprings by using silica nanosprings as a substrate. AB - The growth efficiency of one-dimension (1D) nanostructures via the vapor-liquid solid process is commonly attributed to parameters such as precursor vapor pressure, substrate temperature, and the choice of the catalyst. The work presented herein is an investigation of the use of silica nanosprings (SNs) as a 3D substrate for improving the growth efficiency of SN themselves. SNs are a 1D nanomaterial that form a nonwoven structure with optimal geometric characteristics and surface properties that mitigate collisions between growing nanosprings and ripening of the gold catalyst, which should improve SN yield. Nanospring growth, for an eight hour period, on an SN coated surface relative to an equivalent flat substrate increased from ~25 mgh-1 to ~80 mgh-1, respectively. All things being equal, by splitting the typical amount of catalyst, in this case gold, between the first and second growth, the double growth procedure produced more than three times more nanosprings than the equivalent single growth of a SN. In addition, using an SN as a substrate increased the sustained growth condition from four to eight hours, and thus increased by a factor of ten the gravimetric yield of SNs relative to the mass of gold used. PMID- 29337291 TI - Realization of a half-metallic state on bilayer WSe2 using doping transition metals (Cr, Mn, Fe, Co, Ni) in its interlayer. AB - The structural, electronic and magnetic properties of Cr, Mn, Fe, Co and Ni-doped bilayer WSe2 are predicted by using first principles calculations. The doped transition-metal (TM) atoms show a covalent-binding with the nearest Se atoms. The calculated electronic structures reveal that the TM Cr, Mn, Fe and Co-doped bilayer WSe2 exhibits a half-metallic character with a 100% spin polarization at the Fermi level, and the reason is ascribed to the strong hybridization peak between the transition metals and the parent W and Se atoms. The Ni-doped bilayer WSe2 is still a semiconductor with nonmagnetism. The Fe-doped system has a robust stability of half-metallicity because there are three connected states peak spanning the Fermi level. The doping of Cr, Mn, Fe and Co atoms leads to a prominent total magnetism (0.93-3.65 [Formula: see text] moment per unit cell), and an induced ~0.3 [Formula: see text] moment in parent W atoms is found in addition to the main contribution of TM atomic magnetism (0.71-3.33 [Formula: see text] moment per atom). The predicted Cr, Mn, Fe and Co-doped bilayer WSe2 should be the candidate materials for spintronic devices due to their magnetic and half metallic nature. PMID- 29337292 TI - A rapid, ratiometric, enzyme-free, and sensitive single-step miRNA detection using three-way junction based FRET probes. AB - MicroRNAs (miRNAs) are single stranded endogenous molecules composed of only 18 24 nucleotides which are critical for gene expression regulating the translation of messenger RNAs. Conventional methods based on enzyme-assisted nucleic acid amplification techniques have many problems, such as easy contamination, high cost, susceptibility to false amplification, and tendency to have sequence mismatches. Here we report a rapid, ratiometric, enzyme-free, sensitive, and highly selective single-step miRNA detection using three-way junction assembled (or self-assembled) FRET probes. The developed strategy can be operated within the linear range from subnanomolar to hundred nanomolar concentrations of miRNAs. In comparison with the traditional approaches, our method showed high sensitivity for the miRNA detection and extreme selectivity for the efficient discrimination of single-base mismatches. The results reveal that the strategy paved a new avenue for the design of novel highly specific probes applicable in diagnostics and potentially in microscopic imaging of miRNAs in real biological environments. PMID- 29337293 TI - A-TEEMTM, a New Molecular Fingerprinting Technique: Simultaneous Absorbance-Transmission and Fluorescence Excitation-Emission Matrix Method. AB - We investigate the new simultaneous Absorbance-Transmission and fluorescence Excitation-Emission Matrix method for rapid and effective characterization of the varying components from a mixture. The Absorbance-Transmission and fluorescence Excitation-Emission Matrix method uniquely facilitates correction of fluorescence inner-filter effects to yield quantitative fluorescence spectral information that is largely independent of component concentration. This is significant because it allows one to effectively monitor quantitative component changes using multivariate methods and to generate and evaluate spectral libraries. We present the use of this novel instrument in different fields: i.e. tracking changes in complex mixtures including natural water, wine as well as monitoring stability and aggregation of hormones for biotherapeutics. . PMID- 29337294 TI - Large Area Few Layers Hexagonal Boron Nitride Prepared by Quadrupole Field Aided Exfoliation. AB - A quadrupole electric field mediated exfoliation method is proposed to convert micron sized hexagonal boron nitride (hBN) powders into few layers hexagonal boron nitride nano-sheets (h-BNNS). Under the optimum conditions (400 Hz, 40 V, 32MUg/mL, sodium deoxycholate, TAE medium), the hBN powders (thickness > 200 nm, horizontal scale ~ 10 MUm) are successfully exfoliated into 0.5-4 nm (1-10 layers) thick h-BNNS with the same horizontal scale. Dynamic laser scattering (DLS) and atomic force microscope (AFM) statistics show that the yield is 47.6 % (for the portion with the thickness of 0.5-6 nm), and all of the vertical sizes are reduced to smaller than 18 nm (45 layers). PMID- 29337295 TI - How to manipulate magnetic states of antiferromagnets. AB - Antiferromagnetic materials, which have drawn considerable attention recently, have fascinating features: they are robust against perturbation, produce no stray fields, and exhibit ultrafast dynamics. Discerning how to efficiently manipulate the magnetic state of an antiferromagnet is key to the development of antiferromagnetic spintronics. In this review, we introduce four main methods (magnetic, strain, electrical, and optical) to mediate the magnetic states and elaborate on intrinsic origins of different antiferromagnetic materials. Magnetic control includes a strong magnetic field, exchange bias, and field cooling, which are traditional and basic. Strain control involves the magnetic anisotropy effect or metamagnetic transition. Electrical control can be divided into two parts, electric field and electric current, both of which are convenient for practical applications. Optical control includes thermal and electronic excitation, an inertia-driven mechanism, and terahertz laser control, with the potential for ultrafast antiferromagnetic manipulation. This review sheds light on effective usage of antiferromagnets and provides a new perspective on antiferromagnetic spintronics. PMID- 29337296 TI - Computer analysis of histopathological images for tumor grading. AB - OBJECTIVE: We developed a new method that enables automatic and rapid assessment of a tumor's proliferation index from immunohistochemically (IHC) stained microscopic images. APPROACH: The method is based on computer-aided analysis of images - color filtration pixel-by-pixel (CFPP method) of the whole histopathological virtual slides. MAIN RESULTS: The method is simple, rapid, and does not require the time consuming step of selecting manually areas of interest nor the need for computationally complicated detection of hot-spots, both of which attempt to emulate a pathologist's way of estimating a proliferation index. We apply our method to a set of diffuse large B-cell lymphoma (DLBCL) slide images. SIGNIFICANCE: By appropriate changes in the color filtration thresholds, our method may be adapted to the analysis of other types of tumors. It may also be adapted for analysis of microscopic images in neuropathology, like biopsies of dystrophic muscles. Because of its simplicity and rapidity it may also be applied for analysis of series of images to assess dynamics of image complexity in network physiology. PMID- 29337297 TI - 3D hierarchical Ag nanostructures formed on poly(acrylic acid) brushes grafted graphene oxide as promising SERS substrates. AB - In this study, in situ generation of Ag nanostructures with various morphology on poly(acrylic acid) (PAA) brushes grafted onto graphene oxide (GO), for use as substrates for surface-enhanced Raman scattering (SERS), is demonstrated. The overall synthetic strategy involves the loading of Ag precursor ions ((Ag+ and [Ag(NH3)2]+) onto PAA brush-grafted GO, followed by their in situ reduction to Ag nanostructures of various morphology using a reducing agent (NaBH4 or ascorbic acid). Novel 3D hierarchical flowerlike Ag nanostructures were obtained by using AgNO3 as precursor and ascorbic acid as reducing agent. Using 4-aminothiophenol as probe molecules, the as-prepared hierarchical Ag nanostructures exhibited excellent SERS performance, providing enhancement factors of ~107. PMID- 29337298 TI - Tuning the electrical transport of type II Weyl semimetal WTe2 nanodevices by Mo doping. AB - We fabricated nanodevices of MoxW1-xTe2 (x =0, 0.07, 0.35) and conducted systematic comparative study of their electrical transport. Magnetoresistance measurements show that Mo doping can significantly suppress the mobility and magnetoresistance. The results for the analysis of two band model (TBM) show that the doping of Mo does not break the carrier balance. By Shubnikov-de Haas oscillations (SdHO) analysis, we found that Mo doping also has a strong suppress on the quantum oscillation of the sample, and the higher the ratio of Mo is, the fewer the pockets observed in our experiments are. Furthermore, with the increase of Mo ratio, the effective mass of electron and hole increases gradually, while the corresponding quantum mobility decreases rapidly. PMID- 29337299 TI - Comparison of acrylic polymer adhesive tapes and silicone optical grease in light sharing detectors for positron emission tomography. AB - Optical coupling is an important factor in detector design as it improves optical photon transmission by mitigating internal reflections at light-sharing boundaries. In this work we compare optical coupling materials, namely double sided acrylic polymer tapes and silicone optical grease (SiG), in the context of positron emission tomography. Four double-sided tapes from 3 M of varying thicknesses (0.229 mm-1.016 mm) and adhesive materials ('100MP', 'A100', and 'GPA') were characterized with spectrophotometer measurements as well as photopeak amplitude and energy resolution measurements using lutetium-yttrium oxy orthosilicate (LYSO) coupled to photomultiplier tubes (PMT) or silicon photomultipliers (SiPMs). Transmission spectra from the spectrophotometer showed over 80% transmission for all tapes at 420 nm and above, with 89.6% and 88.8% transmission for the 0.508 mm and 1.016 mm thick GPA tapes, respectively, at 420 nm. Measurements with single-pixel LYSO-PMT and 4 * 4 array (one-to-one coupled) LYSO-SiPM setups determined that SiG had the greatest photopeak amplitude, with tapes showing 2.1%-14.8% reduction in photopeak amplitude with respect to SiG. Energy resolution changed by less than 4% on a relative basis between tapes and SiG with PMT measurements, however for the SiPM array measurements the energy resolution improved from 15.6% +/- 2.7% full-width at half-maximum to 11.4% +/- 1.2% for SiG and 1 mm GPA respectively. Data acquired with dual-layer offset LYSO arrays (light sharing detector designs) demonstrated that a detector coupled with 1 mm thick GPA tape produced equivalent detector flood histograms to those from a design coupled with SiG and a 1 mm thick glass lightguide. No significant degradation in photopeak amplitude and energy resolution was observed over five months of measurements, indicating the tapes maintain their coupling integrity over several months. Though minimal photopeak amplitude degradation compared to SiG occurs, double-sided tapes are convenient alternatives for optical coupling materials since they diffuse light intrinsically, acting as a light guide, offer mechanical support and durability, are easily applied and removed from scintillators/photodetectors, and are relatively inexpensive and readily available. PMID- 29337300 TI - Hydrodynamic shrinkage of liquid CO2 Taylor drops in a straight microchannel. AB - Hydrodynamic shrinkage of liquid CO2 drops in water under a Taylor flow regime is studied using a straight microchannel (length/width ~ 100). A general form of a mathematical model of the solvent-side mass transfer coefficient (ks) is developed first. Based on formulations of the surface area (A) and the volume (V) of a general Taylor drop in a rectangular microchannel, a specific form of ks is derived. Drop length and speed are experimentally measured at three specified positions of the straight channel, namely, immediately after drop generation (position 1), the midpoint of the channel (position 2) and the end of the channel (position 3). The reductions of drop length (Lx, x = 1, 2, 3) from position 1 to 2 and down to 3 are used to quantify the drop shrinkage. Using the specific model, ks is calculated mainly based on Lx and drop flowing time (t). Results show that smaller CO2 drops produced by lower flow rate ratios (QLCO2/QH2O) are generally characterized by higher (nearly three times) ks and Sherwood numbers than those produced by higher QLCO2/QH2O, which is essentially attributed to the larger effective portion of the smaller drop contributing in the mass transfer under same levels of the flowing time and the surface-to-volume ratio (~ 104 m-1) of all drops. Based on calculated pressure drops of the segmented flow in microchannel, the Peng-Robinson equation of state (EOS) and initial pressures of drops at the T-junction in experiments, overall pressure drop (DeltaPt) in the straight channel as well as the resulted drop volume change are quantified. DeltaPt from position 1 to 3 is by average 3.175 kPa with a ~1.6% standard error, which only leads to relative drop volume changes of 0.30/00 to 0.520/00. PMID- 29337301 TI - Hepatic Gi signaling regulates whole-body glucose homeostasis. AB - An increase in hepatic glucose production (HGP) is a key feature of type 2 diabetes. Excessive signaling through hepatic Gs-linked glucagon receptors critically contributes to pathologically elevated HGP. Here, we tested the hypothesis that this metabolic impairment can be counteracted by enhancing hepatic Gi signaling. Specifically, we used a chemogenetic approach to selectively activate Gi-type G proteins in mouse hepatocytes in vivo. Unexpectedly, activation of hepatic Gi signaling triggered a pronounced increase in HGP and severely impaired glucose homeostasis. Moreover, increased Gi signaling stimulated glucose release in human hepatocytes. A lack of functional Gi-type G proteins in hepatocytes reduced blood glucose levels and protected mice against the metabolic deficits caused by the consumption of a high-fat diet. Additionally, we delineated a signaling cascade that links hepatic Gi signaling to ROS production, JNK activation, and a subsequent increase in HGP. Taken together, our data support the concept that drugs able to block hepatic Gi coupled GPCRs may prove beneficial as antidiabetic drugs. PMID- 29337302 TI - Critical roles of alphaII spectrin in brain development and epileptic encephalopathy. AB - The nonerythrocytic alpha-spectrin-1 (SPTAN1) gene encodes the cytoskeletal protein alphaII spectrin. Mutations in SPTAN1 cause early infantile epileptic encephalopathy type 5 (EIEE5); however, the role of alphaII spectrin in neurodevelopment and EIEE5 pathogenesis is unknown. Prior work suggests that alphaII spectrin is absent in the axon initial segment (AIS) and contributes to a diffusion barrier in the distal axon. Here, we have shown that alphaII spectrin is expressed ubiquitously in rodent and human somatodendritic and axonal domains. CRISPR-mediated deletion of Sptan1 in embryonic rat forebrain by in utero electroporation caused altered dendritic and axonal development, loss of the AIS, and decreased inhibitory innervation. Overexpression of human EIEE5 mutant SPTAN1 in embryonic rat forebrain and mouse hippocampal neurons led to similar developmental defects that were also observed in EIEE5 patient-derived neurons. Additionally, patient-derived neurons displayed aggregation of spectrin complexes. Taken together, these findings implicate alphaII spectrin in critical aspects of dendritic and axonal development and synaptogenesis, and support a dominant-negative mechanism of SPTAN1 mutations in EIEE5. PMID- 29337303 TI - PD-L1 on host cells is essential for PD-L1 blockade-mediated tumor regression. AB - Programmed death-ligand 1 (PD-L1) expression on tumor cells is essential for T cell impairment, and PD-L1 blockade therapy has shown unprecedented durable responses in several clinical studies. Although higher expression of PD-L1 on tumor cells is associated with a better immune response after Ab blockade, some PD-L1-negative patients also respond to this therapy. In the current study, we explored whether PD-L1 on tumor or host cells was essential for anti-PD-L1 mediated therapy in 2 different murine tumor models. Using real-time imaging in whole tumor tissues, we found that anti-PD-L1 Ab accumulates in tumor tissues, regardless of the status of PD-L1 expression on tumor cells. We further observed that, while PD-L1 on tumor cells was largely dispensable for the response to checkpoint blockade, PD-L1 in host myeloid cells was essential for this response. Additionally, PD-L1 signaling in defined antigen-presenting cells (APCs) negatively regulated and inhibited T cell activation. PD-L1 blockade inside tumors was not sufficient to mediate regression, as limiting T cell trafficking reduced the efficacy of the blockade. Together, these findings demonstrate that PD-L1 expressed in APCs, rather than on tumor cells, plays an essential role in checkpoint blockade therapy, providing an insight into the mechanisms of this therapy. PMID- 29337304 TI - The host protecting the tumor from the host - targeting PD-L1 expressed by host cells. AB - Tumors frequently escape from immune surveillance by hijacking the natural control mechanisms that regulate normal immune responses. The programmed death-1 receptor (PD-1) on T cells normally helps limit excessive immune activation, but it can also suppress beneficial antitumor immunity. In the clinic, blocking either PD-1 or one of its principal counterligands, programmed death-ligand 1 (PD L1), can lead to dramatic responses in certain patients. Because PD-L1 can be expressed by both the tumor cells themselves and also the host cells, including host immune cells, the actual mechanistic target of therapy has remained unclear. In the current issue of the JCI, two papers, one by Tang and colleagues and the other by Lin and colleagues, used a variety of mouse tumor models to demonstrate that the relevant target for therapy in each case was the PD-L1 molecules expressed by host cells and not by tumor cells. If this finding is generalized to humans, then it would suggest that the tumor persuades the host to actively suppress its own attempted immune response against the tumor cells. PMID- 29337305 TI - Host expression of PD-L1 determines efficacy of PD-L1 pathway blockade-mediated tumor regression. AB - Programmed death-1 receptor (PD-L1, B7-H1) and programmed cell death protein 1 (PD-1) pathway blockade is a promising therapy for treating cancer. However, the mechanistic contribution of host and tumor PD-L1 and PD-1 signaling to the therapeutic efficacy of PD-L1 and PD-1 blockade remains elusive. Here, we evaluated 3 tumor-bearing mouse models that differ in their sensitivity to PD-L1 blockade and demonstrated a loss of therapeutic efficacy of PD-L1 blockade in immunodeficient mice and in PD-L1- and PD-1-deficient mice. In contrast, neither knockout nor overexpression of PD-L1 in tumor cells had an effect on PD-L1 blockade efficacy. Human and murine studies showed high levels of functional PD L1 expression in dendritic cells and macrophages in the tumor microenvironments and draining lymph nodes. Additionally, expression of PD-L1 on dendritic cells and macrophages in ovarian cancer and melanoma patients correlated with the efficacy of treatment with either anti-PD-1 alone or in combination with anti CTLA-4. Thus, PD-L1-expressing dendritic cells and macrophages may mechanistically shape and therapeutically predict clinical efficacy of PD-L1/PD-1 blockade. PMID- 29337306 TI - Zinc transporter Slc39a8 is essential for cardiac ventricular compaction. AB - Isolated left ventricular noncompaction (LVNC) results from excessive trabeculation and impaired myocardial compaction during heart development. The extracellular matrix (ECM) that separates endocardium from myocardium plays a critical but poorly understood role in ventricular trabeculation and compaction. In an attempt to characterize solute carrier family 39 member 8-null (Slc39a8 null) mice, we discovered that homozygous null embryos do not survive embryogenesis and exhibit a cardiac phenotype similar to human LVNC. Slc39a8 encodes a divalent metal cation importer that has been implicated in ECM degradation through the zinc/metal regulatory transcription factor 1 (Zn/MTF1) axis, which promotes the expression of ECM-degrading enzymes, including Adamts metalloproteinases. Here, we have shown that Slc39a8 is expressed by endothelial cells in the developing mouse heart, where it serves to maintain cellular Zn levels. Furthermore, Slc39a8-null hearts exhibited marked ECM accumulation and reduction of several Adamts metalloproteinases. Consistent with the in vivo observations, knockdown of SLC39A8 in HUVECs decreased ADAMTS1 transcription by decreasing cellular Zn uptake and, as a result, MTF1 transcriptional activity. Our study thus identifies a gene underlying ventricular trabeculation and compaction development, and a pathway regulating ECM during myocardial morphogenesis. PMID- 29337307 TI - A double negative: inhibition of hepatic Gi signaling improves glucose homeostasis. AB - Hepatic glucose production (HGP) is a key determinant of glucose homeostasis. Glucagon binding to its cognate seven-transmembrane Gs-coupled receptor in hepatocytes stimulates cAMP production, resulting in increased HGP. In this issue of the JCI, Rossi and colleagues tested the hypothesis that activation of hepatic Gi-coupled receptors, which should inhibit cAMP production, would oppose the cAMP inducing action of glucagon and thereby decrease HGP. Surprisingly, however, the opposite occurred: activation of Gi signaling increased HGP via a novel mechanism, while inhibition of Gi signaling reduced HGP. These results define a new physiologic role for hepatic Gi signaling and identify a potential therapeutic target for HGP regulation. PMID- 29337308 TI - RAGE binds preamyloid IAPP intermediates and mediates pancreatic beta cell proteotoxicity. AB - Islet amyloidosis is characterized by the aberrant accumulation of islet amyloid polypeptide (IAPP) in pancreatic islets, resulting in beta cell toxicity, which exacerbates type 2 diabetes and islet transplant failure. It is not fully clear how IAPP induces cellular stress or how IAPP-induced toxicity can be prevented or treated. We recently defined the properties of toxic IAPP species. Here, we have identified a receptor-mediated mechanism of islet amyloidosis-induced proteotoxicity. In human diabetic pancreas and in cellular and mouse models of islet amyloidosis, increased expression of the receptor for advanced glycation endproducts (RAGE) correlated with human IAPP-induced (h-IAPP-induced) beta cell and islet inflammation, toxicity, and apoptosis. RAGE selectively bound toxic intermediates, but not nontoxic forms of h-IAPP, including amyloid fibrils. The isolated extracellular ligand-binding domains of soluble RAGE (sRAGE) blocked both h-IAPP toxicity and amyloid formation. Inhibition of the interaction between h-IAPP and RAGE by sRAGE, RAGE-blocking antibodies, or genetic RAGE deletion protected pancreatic islets, beta cells, and smooth muscle cells from h-IAPP induced inflammation and metabolic dysfunction. sRAGE-treated h-IAPP Tg mice were protected from amyloid deposition, loss of beta cell area, beta cell inflammation, stress, apoptosis, and glucose intolerance. These findings establish RAGE as a mediator of IAPP-induced toxicity and suggest that targeting the IAPP/RAGE axis is a potential strategy to mitigate this source of beta cell dysfunction in metabolic disease. PMID- 29337309 TI - Role for VGLUT2 in selective vulnerability of midbrain dopamine neurons. AB - Parkinson's disease is characterized by the loss of dopamine (DA) neurons in the substantia nigra pars compacta (SNc). DA neurons in the ventral tegmental area are more resistant to this degeneration than those in the SNc, though the mechanisms for selective resistance or vulnerability remain poorly understood. A key to elucidating these processes may lie within the subset of DA neurons that corelease glutamate and express the vesicular glutamate transporter VGLUT2. Here, we addressed the potential relationship between VGLUT expression and DA neuronal vulnerability by overexpressing VGLUT in DA neurons of flies and mice. In Drosophila, VGLUT overexpression led to loss of select DA neuron populations. Similarly, expression of VGLUT2 specifically in murine SNc DA neurons led to neuronal loss and Parkinsonian behaviors. Other neuronal cell types showed no such sensitivity, suggesting that DA neurons are distinctively vulnerable to VGLUT2 expression. Additionally, most DA neurons expressed VGLUT2 during development, and coexpression of VGLUT2 with DA markers increased following injury in the adult. Finally, conditional deletion of VGLUT2 made DA neurons more susceptible to Parkinsonian neurotoxins. These data suggest that the balance of VGLUT2 expression is a crucial determinant of DA neuron survival. Ultimately, manipulation of this VGLUT2-dependent process may represent an avenue for therapeutic development. PMID- 29337310 TI - OATP1B2 deficiency protects against paclitaxel-induced neurotoxicity. AB - Paclitaxel is among the most widely used anticancer drugs and is known to cause a dose-limiting peripheral neurotoxicity, the initiating mechanisms of which remain unknown. Here, we identified the murine solute carrier organic anion-transporting polypeptide B2 (OATP1B2) as a mediator of paclitaxel-induced neurotoxicity. Additionally, using established tests to assess acute and chronic paclitaxel induced neurotoxicity, we found that genetic or pharmacologic knockout of OATP1B2 protected mice from mechanically induced allodynia, thermal hyperalgesia, and changes in digital maximal action potential amplitudes. The function of this transport system was inhibited by the tyrosine kinase inhibitor nilotinib through a noncompetitive mechanism, without compromising the anticancer properties of paclitaxel. Collectively, our findings reveal a pathway that explains the fundamental basis of paclitaxel-induced neurotoxicity, with potential implications for its therapeutic management. PMID- 29337312 TI - China CO2 emission accounts 1997-2015. AB - China is the world's top energy consumer and CO2 emitter, accounting for 30% of global emissions. Compiling an accurate accounting of China's CO2 emissions is the first step in implementing reduction policies. However, no annual, officially published emissions data exist for China. The current emissions estimated by academic institutes and scholars exhibit great discrepancies. The gap between the different emissions estimates is approximately equal to the total emissions of the Russian Federation (the 4th highest emitter globally) in 2011. In this study, we constructed the time-series of CO2 emission inventories for China and its 30 provinces. We followed the Intergovernmental Panel on Climate Change (IPCC) emissions accounting method with a territorial administrative scope. The inventories include energy-related emissions (17 fossil fuels in 47 sectors) and process-related emissions (cement production). The first version of our dataset presents emission inventories from 1997 to 2015. We will update the dataset annually. The uniformly formatted emission inventories provide data support for further emission-related research as well as emissions reduction policy-making in China. PMID- 29337311 TI - Dinaciclib induces immunogenic cell death and enhances anti-PD1-mediated tumor suppression. AB - Blockade of the checkpoint inhibitor programmed death 1 (PD1) has demonstrated remarkable success in the clinic for the treatment of cancer; however, a majority of tumors are resistant to anti-PD1 monotherapy. Numerous ongoing clinical combination therapy studies will likely reveal additional therapeutics that complement anti-PD1 blockade. Recent studies found that immunogenic cell death (ICD) improves T cell responses against different tumors, thus indicating that ICD may further augment antitumor immunity elicited by anti-PD1. Here, we observed antitumor activity following combinatorial therapy with anti-PD1 Ab and the cyclin-dependent kinase inhibitor dinaciclib in immunocompetent mouse tumor models. Dinaciclib induced a type I IFN gene signature within the tumor, leading us to hypothesize that dinaciclib potentiates the effects of anti-PD1 by eliciting ICD. Indeed, tumor cells treated with dinaciclib showed the hallmarks of ICD including surface calreticulin expression and release of high mobility group box 1 (HMGB1) and ATP. Mice treated with both anti-PD1 and dinaciclib showed increased T cell infiltration and DC activation within the tumor, indicating that this combination improves the overall quality of the immune response generated. These findings identify a potential mechanism for the observed benefit of combining dinaciclib and anti-PD1, in which dinaciclib induces ICD, thereby converting the tumor cell into an endogenous vaccine and boosting the effects of anti-PD1. PMID- 29337313 TI - Complete genome sequencing of the luminescent bacterium, Vibrio qinghaiensis sp. Q67 using PacBio technology. AB - Vibrio qinghaiensis sp.-Q67 (Vqin-Q67) is a freshwater luminescent bacterium that continuously emits blue-green light (485 nm). The bacterium has been widely used for detecting toxic contaminants. Here, we report the complete genome sequence of Vqin-Q67, obtained using third-generation PacBio sequencing technology. Continuous long reads were attained from three PacBio sequencing runs and reads >500 bp with a quality value of >0.75 were merged together into a single dataset. This resultant highly-contiguous de novo assembly has no genome gaps, and comprises two chromosomes with substantial genetic information, including protein coding genes, non-coding RNA, transposon and gene islands. Our dataset can be useful as a comparative genome for evolution and speciation studies, as well as for the analysis of protein-coding gene families, the pathogenicity of different Vibrio species in fish, the evolution of non-coding RNA and transposon, and the regulation of gene expression in relation to the bioluminescence of Vqin-Q67. PMID- 29337315 TI - Correction: One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three-dimensional nanohybrid for an ultrasensitive DNA sensor. AB - Correction for 'One-step coelectrodeposition-assisted layer-by-layer assembly of gold nanoparticles and reduced graphene oxide and its self-healing three dimensional nanohybrid for an ultrasensitive DNA sensor' by Jayakumar Kumarasamy, et al., Nanoscale, 2018, DOI: 10.1039/c7nr06952a. PMID- 29337314 TI - The reconstruction of 2,631 draft metagenome-assembled genomes from the global oceans. AB - Microorganisms play a crucial role in mediating global biogeochemical cycles in the marine environment. By reconstructing the genomes of environmental organisms through metagenomics, researchers are able to study the metabolic potential of Bacteria and Archaea that are resistant to isolation in the laboratory. Utilizing the large metagenomic dataset generated from 234 samples collected during the Tara Oceans circumnavigation expedition, we were able to assemble 102 billion paired-end reads into 562 million contigs, which in turn were co-assembled and consolidated in to 7.2 million contigs >=2 kb in length. Approximately 1 million of these contigs were binned to reconstruct draft genomes. In total, 2,631 draft genomes with an estimated completion of >=50% were generated (1,491 draft genomes >70% complete; 603 genomes >90% complete). A majority of the draft genomes were manually assigned phylogeny based on sets of concatenated phylogenetic marker genes and/or 16S rRNA gene sequences. The draft genomes are now publically available for the research community at-large. PMID- 29337316 TI - Enhanced selectivity for Mg2+ with a phosphinate-based chelate: APDAP versus APTRA. AB - o-Aminophenol-N,N,O-triacetate, known as APTRA, is one of the most well established ligands for targeting magnesium ions but, like other aminocarboxylate ligands, it binds Ca2+ much more strongly than Mg2+. The synthesis of an O phosphinate analogue of APTRA is reported here, namely o-aminophenol-N,N diacetate-O-methylene-methylphosphinate, referred to as APDAP. Metal binding studies monitored using UV-visible spectroscopy show that the affinity of APDAP for Ca2+ is reduced by over two orders of magnitude compared to APTRA, and for Zn2+ by over three orders of magnitude, whereas the affinity for Mg2+ is attenuated to a much lesser extent, by a factor of only about 7. The selectivity towards Mg2+ is thus substantially improved. DFT calculations support the notion that longer P-O and P-C bonds in APDAP (compared to corresponding C-O and C-C bonds in APTRA) favour a larger angle at the metal, an effect that is less unfavourable for smaller ions like Mg2+ than for larger ions such as Ca2+. Derivatives of APDAP can be anticipated that will offer improved sensing of Mg2+ in the presence of Ca2+, in the physiologically important millimolar concentration range. PMID- 29337317 TI - Correction: Nucleobases, nucleosides, and nucleotides: versatile biomolecules for generating functional nanomaterials. AB - Correction for 'Nucleobases, nucleosides, and nucleotides: versatile biomolecules for generating functional nanomaterials' by Fang Pu et al., Chem. Soc. Rev., 2018, DOI: . PMID- 29337318 TI - HOMEs for plants and microbes - a phenotyping approach with quantitative control of signaling between organisms and their individual environments. AB - We describe a simple, scalable, modular, and frugal approach to create model ecosystems as millifluidic networks of interconnected habitats (hosting microbes or plants), which offers (i) quantitative and dynamic control over the exchange of chemicals between habitats, and (ii) independent control over their environment. Oscillatory laminar flows produce regions of vortex mixing around obstacles. When these overlap, rapid mass transport by dispersion occurs, which is quantitatively describable as diffusion, but is directional and tunable in rate over 3 orders of magnitude. This acceleration in the rate of diffusion is equivalent to reducing the distance between the habitats, and therefore, the organisms, down to the length scales characteristic of signaling in soil (<2 mm). PMID- 29337319 TI - The effects of interaction between particulate matter and temperature on mortality in Beijing, China. AB - BACKGROUND: the effects of interaction between temperature and inhalable particulate matter (aerodynamic diameter < 10 MUm, PM10) on mortality have been examined in some previous studies, but the results were inconsistent. This study aims to explore whether the effects of PM10 on daily non-accidental, cardiovascular and respiratory mortality were modified by temperature levels in Beijing from 2006 to 2009. METHODS: we applied a bivariate response surface model and temperature-stratified model based on time-series Poisson generalized additive models (GAMs) to examine the interactive effects in single- and two pollutant models. The modification of age and gender was examined in subgroup analyses. RESULTS: the median of temperature (15.9 degrees C) and visualized turning point (20 degrees C) were chosen as cut-offs to define the temperature strata as two levels (low and high). Results showed that the effect estimates of PM10 were stronger at the high temperature level for non-accidental, cardiovascular and respiratory mortality than at the low temperature level. When controlling the moving average lag of temperature for 14 days, the effect estimates per 10 MUg m-3 increase in PM10 for non-accidental, cardiovascular and respiratory mortality increased 0.14% (95% CI: 0.05, 0.22), 0.12% (95% CI: 0.02, 0.23) and 0.14% (95% CI: -0.06, 0.34) when the temperature was low and 0.24% (95% CI: 0.12, 0.35), 0.17% (95% CI: 0.01, 0.34) and 0.45% (95% CI: 0.13, 0.78) at the high temperature level, respectively. In the two-pollutant model, the effects of PM10 were attenuated at both high and low temperatures at all lags after adjusting SO2 and NO2. The PM10 effects were stronger at the high temperature level for females and elderly people (>=65 years old). CONCLUSION: the findings suggest that daily mortality attributed to PM10 might be modified by temperature. The interaction between air pollution and global climate change has potential strategy and policy implications. PMID- 29337320 TI - Homochiral hexanuclear nickel(ii) metallocyclic structures with high activity for the photocatalytic degradation of organic dyes. AB - Enantiopure ligands, namely (R,R)- and (S,S)-2,2'-(1,4-phenylene) bis(4,5 dihydrothiazole-4-carboxylic acid) (H2LRR, and H2LSS) were synthesized, and homochiral metallocyclic rings {Ni6LRR6(H2O)12} (1RR) and {Ni6LSS6(H2O)12} (1SS) were obtained and their structures were determined. The complexes exhibit excellent activity for the photocatalytic degradation of organic dyes. PMID- 29337322 TI - Structural revision of two unusual rhamnofolane diterpenes, curcusones I and J, by means of DFT calculations of NMR shifts and coupling constants. AB - The stereochemical revision of two recently reported rhamnofolane diterpenes, curcusones I and J, was enabled by quantum calculations of NMR shifts and coupling constants at DFT levels. DP4+ results and reexamination of the NMR data suggest that curcusones I and J should be revised as CS32 and CS28, respectively. PMID- 29337321 TI - Synthesis, spectroscopic investigation, and DFT study of N,N'-disubstituted ferrocene-based thiourea complexes as potent anticancer agents. AB - In the present work, the synthesis, characterization (FT-IR, multinuclear (1H and 13C) NMR, AAS, Raman, and elemental analyses), DNA binding (cyclic voltammetry, UV-Vis spectroscopy), and in vitro biological screening of nine new ferrocene incorporated thioureas (A1-A9) are reported. Furthermore, the single-crystal X ray structure of compound A8 was also determined. The ferrocene-based N,N' disubstituted thioureas were derived by allowing the ferrocenyl anilines to react with freshly prepared isothiocyanates under a N2 atmosphere in dry acetone. The DNA binding studies performed by cyclic voltammetry and UV-Vis spectroscopy produced results that are in close agreement with one another for the binding constants (K) and an electrostatic mode of interaction was observed. The DFT/B3LYP method was used to determine the charge distribution and HOMO/LUMO energies of the optimized structure. The DFT calculated HOMO and LUMO energies correlate well with the experimentally determined redox potential values. The synthesized ferrocenyl thioureas exhibited good scavenging activity against the 1,1-diphenyl-2-picrylhydrazyl radical (DPPH). These complexes were also scanned for their in vitro cytotoxic activity against MCF-7 carcinoma cells, and also towards the non-cancerous cell line MCF-10A. The results showed modest cytotoxicity against the subjected cancer cell line compared with a standard chemotherapeutic drug (cisplatin). However, these ferrocenyl derivatives have fewer toxic effects in normal cells. PMID- 29337323 TI - Conversion of CO2 into cyclic carbonates by a Co(ii) metal-organic framework and the improvement of catalytic activity via nanocrystallization. AB - The Co(ii) metal-organic framework (MOF) {[Co(MU3-L)(H2O)].0.5H2O}n (1, H2L = thiazolidine 2,4-dicarboxylic acid) with rich Lewis acid sites was used as a catalyst for the conversion of CO2 and propylene oxide into propylene carbonate with a yield of up to 98% under 50 degrees C and 1 atm. 1 exhibited excellent reusability, which could be regenerated easily for at least five runs without a decrease in the yield. Importantly, we synthesized two types of nano-crystals (N1 and N2) of 1 with polyvinylpyrrolidone (PVP) and hexadecyltrimethylammonium bromide (CTAB) as surfactants, respectively, and investigated their catalytic properties in comparison with that of 1 in the powder phase. A significant enhancement in both catalytic efficiency and product yield was observed when 1 was nano-crystallized. This is the first investigation about the relationship between the morphology and the catalytic parameters of MOFs. The results showed a strategy for efficiently applying MOFs as catalysts towards CO2 conversion, which could also be used in other MOF-catalyzed processes. PMID- 29337324 TI - Polymerization kinetics of a multi-functional silica precursor studied using a novel Monte Carlo simulation technique. AB - Silica polymerization has been extensively used to synthesize various fascinating materials for industrial and technological applications. The polymerization protocol is modified by altering several parameters (such as the concentration of the precursor, temperature, pH) heuristically to obtain the desired end product. To properly understand the effect of such parameters, knowledge of molecular events occurring during the process of polymerization is essential. In this work, we developed algorithms to capture molecular events such as translation, rotation, and reactions using the reaction ensemble Monte Carlo (REMC) technique. Our algorithms simulate molecular events in accordance with physical time by correctly scaling the movements of a cluster with the monomer, thereby capturing the kinetics of the process. We studied the polymerization of the four coordinated silica (f4) precursor using our algorithm and observed excellent agreement between simulation results and experimental data. The algorithm was also used to study the polymerization of the three coordinated silica (f3) precursor and it was found that our simulations capture experimental kinetics well, thereby confirming that the developed algorithms are robust. We studied the effect of the functionality of the precursor on polymerization kinetics and the resulting structure by simulating silica systems having a mixture of two, three and four functional (f2, f3, and f4) silica precursors. We observed that network formation and cluster size decrease with the increase in the concentration of the f2 precursor. The radius of gyration (Rg) of the system initially increases due to network formation and decreases later due to the collapse of a large cluster. The Rg is directly correlated with the total number of primitive rings present in the system. The molecular level understanding obtained will be useful in the design of tailored silica nanoparticles. PMID- 29337325 TI - Design of donor-acceptor copolymers for organic photovoltaic materials: a computational study. AB - 80 different push-pull type organic chromophores which possess Donor-Acceptor (D A) and Donor-Thiophene-Acceptor-Thiophene (D-T-A-T) structures have been systematically investigated by means of density functional theory (DFT) and time dependent DFT (TD-DFT) at the B3LYP/6-311G* level. The introduction of thiophene (T) in the chain has allowed us to monitor the effect of pi-spacers. Benchmark studies on the methodology have been carried out to predict the HOMO and LUMO energies and optical band gaps of the D-A systems accurately. The HOMO and LUMO energies and transition dipoles are seen to converge for tetrameric oligomers, and the latter have been used as optimal chain length to evaluate various geometrical and optoelectronic properties such as bond length alternations, distortion energies, frontier molecular orbital energies, reorganization energies and excited-state vertical transition of the oligomers. Careful analysis of our findings has allowed us to propose potential donor-acceptor couples to be used in organic photovoltaic cells. PMID- 29337326 TI - Synthesis, characterization and derivatization of hydroxyl-functionalized iron(ii) bis(NHC) complexes. AB - The syntheses of a novel hydroxyl-functionalized tetradentate NHC/pyridine hybrid ligand and the corresponding Ag(i) and Fe(ii) complexes are presented. Spectroscopic and X-ray diffraction techniques are used for structural investigations and cyclic voltammetry measurements reveal interesting electronic properties. Transmetalation of the trinuclear Ag(i) complex (C1) yields a mononuclear and a dinuclear iron(ii) bis(NHC) complex (C2 and C3), which can be separated by stepwise precipitation. The former is isostructural to iron(ii) bis(NHC) complex A, which is a versatile oxidation catalyst. Furthermore, suitable conditions for esterification reactions of the ligand precursor and iron(ii) bis(NHC) complex (C2) have been established, demonstrating the utility of the hydroxyl functionality for immobilization and derivatization purposes. PMID- 29337327 TI - Modulating inflammation in a cutaneous chronic wound model by IL-10 released from collagen-silica nanocomposites via gene delivery. AB - Cutaneous chronic wounds remain a major clinical challenge which requires the development of novel wound dressings. Previously, we showed that collagen-silica nanocomposites consisting of polyethyleneimine (PEI)-DNA complexes associated with silica nanoparticles (SiNP), collagen hydrogel and 3T3 fibroblasts, can work as a local "cell factory". Indeed, the "in-gel" transfection leads to a sustained production and release of biomolecules. Herein, we further explored the possibility for nanocomposites to deliver interleukin-10 (IL-10), a potent anti inflammatory cytokine, which favors tissue repair. Its anti-inflammatory effect was evaluated in an in vitro inflammation model carried out by LPS (lipopolysaccharide) activation of macrophages embedded in collagen gel. The IL 10 synthesis from nanocomposites was detected over one week in the range of 200 400 pg mL-1 and reached a maximum at day 5 without any observed cytotoxic effects. PEI10-SiNP outperformed free PEI10 and PEI25-SiNP, implying that the introduction of SiNP improved the transfection efficiency of low Mw of PEI. In addition, the structure and mechanical properties of collagen-silica nanocomposites were stable over one week. Subsequently, the ability of nanocomposites to modulate inflammation was tested in a 3D model of inflammation. The decrease of TNF-alpha and IL-1beta gene expression by 20-80% indicated successful inhibition of inflammation by IL-10 released from nanocomposites. Taken together, the nanocomposites are capable of producing effective doses of IL 10 which inhibit the synthesis of pro-inflammatory cytokines and favor the expression of wound healing cytokines. Therefore, the as-constructed 3D gene delivery system represents a promising strategy for the controlled release of therapeutic biomolecules favoring cutaneous wound healing. PMID- 29337328 TI - Self-assembly of high-index faceted gold nanocrystals to fabricate tunable coupled plasmonic superlattices. AB - Herein, we present an effective bottom-up strategy to fabricate unprecedented macroscopic two-dimensional (2D) plasmonic gold superlattices composed of high index faceted gold nanocrystal building blocks (NBBs) at the air-liquid interface. In this approach, a synergistic electrostatic and layered self assembly technique was executed using unique icosidodecahedral gold nanocrystals. It showed that centimeter-squared areas of close-packed monolayer films were formed, and the interparticle spacing of neighbouring Au NBBs could be facilely manipulated from hundreds to several nanometers. Optical characterization demonstrated that particular plasmonic coupling could occur and enhance in a wide spectral range (visible and near-IR) as the self-assembled Au superlattices were tuned for an appropriate gap distance and specific NBB size; however, the orientation of individual NBBs remained somewhat unorganized. Thus, the well pronounced shift of localized surface plasmon resonances (LSPR) and the in-depth resonance splitting behaviors were presented in our investigations. Furthermore, corresponding electromagnetic simulations showed good agreement with the experimental results; this indicated that a new class of tunable coupled plasmonic Au superlattices was realized. This study complements the insights into the plasmonic coupling of layered Au superlattices and enables the colloidal self assembly to extend to unconventional NBBs; thus, it may facilitate the design of novel plasmonic metamaterials or other superstructures for desired functionalities and applications in the future. PMID- 29337330 TI - ? PMID- 29337329 TI - Ultra-low-temperature growth of CdS quantum dots on g-C3N4 nanosheets and their photocatalytic performance. AB - CdS quantum dots deposited on carbon nitride (g-C3N4) nanosheets have been synthesized by ultra-low temperature (-60 degrees C) liquid phase precipitation reactions. The obtained CdS quantum dots were uniformly distributed on the surface of the g-C3N4 nanosheets with an average diameter of 5 nm. Correspondingly, CdS/g-C3N4 exhibits a highly enhanced photocatalytic performance. PMID- 29337331 TI - ? PMID- 29337333 TI - ? PMID- 29337332 TI - ? PMID- 29337334 TI - ? PMID- 29337335 TI - ? PMID- 29337336 TI - ? PMID- 29337337 TI - ? AB - Automatic infectious disease consultant alert is associated with decreased mortality and readmission rate in Staphylococcus aureus bacteriemia A management plan was implemented at a 2000 bed teaching hospital where positive blood cultures with growth of Staphylococcus aureus were reported simultaneously to the ordering unit and to the Infectious Disease Consultant. Readmission rate and 30 day mortality were compared one year before and one year after introduction of the management plan. Out of totally 320 respectively 321 patients with SAB 252 and 244 were included in the study. 30-day mortality decreased from 26/252 (10%) to 14/244 (5,7%) (p=0.059) when all patients with SAB were included and to 9/193 (4,7%) (p=0,026) when only patients who received a formal consultation after introduction of the management plan were included. The rate of readmission within 30 days declined from 38/227 (17%) in 2014-2015 to 24/230 (10%) in 2015-2016 (p=0,049). PMID- 29337338 TI - ? AB - Good outcomes when emergency physicians diagnosed deep vein thrombosis Deep vein thrombosis of the lower limb is best diagnosed with ultrasound. Internationally, several studies have shown promising and often equal results when emergency physicians have been compared with radiologists in diagnosing thrombosis. Our results confirm these findings in a non-academic hospital and for the first time in a Swedish setting. Our findings form the basis for a multi-centre study on new diagnostic routines in patients with suspected proximal deep vein thrombosis in the emergency department, potentially resulting in faster and more resource effective management. PMID- 29337339 TI - ? AB - Risk of optic nerve injury after prolonged Trendelenburg's position Postoperative loss of vision due to acute ischaemic optic nerve injury is a rare complication following pelvic surgery. A steep Trendelenburg's position of the patient, high intraabdominal pressure and a long operative time in Trendelenburg's position are recognised risk factors associated with robot-assisted pelvic surgery. This manuscript presents the underlying pathophysiologic mechanism. Practical tips and tricks for prevention are discussed. PMID- 29337340 TI - ? PMID- 29337341 TI - ? AB - MMR vaccination in 6-9 month olds Vaccination against measles using the MMR vaccine is licensed from 9 months of age, but is used off-label from 6 months of age during or when travelling to areas with an ongoing measles outbreak. In this review of the published literature, studies on MMR vaccination in this age group are limited and small in size. Immunogenicity studies indicate that infants under 9 months respond with lower antibody titres but comparable T cell responses against measles. The safety profile of the vaccine does not appear to differ between infants vaccinated earlier or later. Vaccination from 6 months of age should be recommended if the risk of being infected with measles is considered greater than the risk of not attaining full vaccination protection. PMID- 29337342 TI - Polysaccharides Reduce Absorption and Mutagenicity of 3-Amino-1,4-Dimethyl-5H Pyrido[4,3-b]Indole In Vitro and In Vivo. AB - : 3-Amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1) is a group 2B carcinogen characterized by the International Agency for Research on Cancer (IARC) and great efforts have been taken to reduce Trp-P-1 mutagenicity to humans. In this study, the effect of a reduction of Trp-P-1 on intestinal absorption as a promising strategy was investigated. The data showed that when 20 mM Trp-P-1 cotransported with 10 mM of sodium carboxymethyl cellulose (CMC), xanthan gum, or carrageenan, the absorption rate of Trp-P-1 was reduced by 31.5%, 49.5%, or 72.9% in MDCK-MDR1 cell monolayer, respectively; and 64.6%, 83.4%, or 64.1% in rat intestinal tissues, correspondingly. These 3 polysaccharides also reduced pharmacokinetic parameters, that is, Cmax , AUC0-t , and AUC0-infinity , after Trp-P-1 was given to rats intragastrically. However, gum arabic did not exhibit similar effects on Trp-P-1 absorption in vitro or in vivo. The Ames test showed that these 3 polysaccharides reduced Trp-P-1 mutagenicity to Salmonella typhimurium TA98, but gum arabic did not. Isothermal titration calorimetry assay indicated that Trp-P-1 interacted with these 3 polysaccharides. Thermodynamic study showed that the actual value of ?H <0, but its absolute value greater than the corresponding value of T?S, suggest a specific interaction between Trp-P-1 and these 3 polysaccharides, probably through the hydrogen bond and/or ion interaction. Reduction of Trp-P-1 intestinal absorption using food additives could be one of the strategies to suppress Trp-P-1-induced carcinogenesis in human. PRACTICAL APPLICATION: 1.This study provides insightful information for the food industry how gum arabic, xanthan gum, kappa carrageenan, and sodium carboxymethyl cellulose affect the absorption of Trp-P-1. 2.This study also provides novel information regarding a better formulation for meat products to reduce Trp-P-1 absorption. PMID- 29337343 TI - Antimicrobial-Resistance Genetic Markers in Potentially Pathogenic Gram Positive Cocci Isolated from Brazilian Soft Cheese. AB - Although most Brazilian dairy products meet high technological standards, there are quality issues regarding milk production, which may reduce the final product quality. Several microbial species may contaminate milk during manufacture and handling. If antimicrobial usage remains uncontrolled in dairy cattle, the horizontal transfer of antimicrobial resistance genes in foodstuffs may be of particular concern for both food producers and dairy industry. This study focused on the evaluation of putative Gram positive cocci in Minas cheese and of antimicrobial and biocide resistance genes among the isolated bacteria. Representative samples of 7 different industrially trademarked Minas cheeses (n = 35) were processed for selective culture and isolation of Gram positive cocci. All isolated bacteria were identified by DNA sequencing of the 16S rRNA gene. Antimicrobial resistance genes were screened by PCR. Overall, 208 strains were isolated and identified as follows: Enterococcus faecalis (47.6%), Macrococcus caseolyticus (18.3%), Enterococcus faecium (11.5%), Enterococcus caseliflavus (7.7%), Staphylococcus haemolyticus (7.2%), Staphylococcus aureus (4.3%), Staphylococcus epidermidis (2.9%), and Enterococcus hirae (0.5%). The genetic markers mecA (78.0%) and smr (71.4%) were the most prevalent, but others were also detected, such as blaZ (65.2%), msrA (60.9%), msrB (46.6%), linA (54.7%), and aacA-aphD (47.6%). The occurrence of opportunist pathogenic bacteria harboring antimicrobial resistance markers in the cheese samples are of special concern, since these bacteria are not considered harmful contaminating agents according to the Brazilian sanitary regulations. However, they are potentially pathogenic bacteria and the cheese may be considered a reservoir for antimicrobial resistance genes available for horizontal transfer through the food chain, manufacturing personnel and consumers. PMID- 29337344 TI - Microbiological Quality and Safety of Fresh Fruits and Vegetables at Retail Levels in Korea. AB - The aim of this study was to evaluate the microbiological quality and safety of fresh produce at retail level in Korea in order to periodically update information and establish available risks associated with consumption of fresh fruits and vegetables. The samples from different markets located in 3 provinces of South Korea were collected. The protocol in the Korean Food Standards Codex was applied and generic Escherichia coli, coliforms, aerobic mesophilic bacteria (AMB), and yeast and mold (YM) in 360 packaged and unpackaged fresh fruits and vegetables were analyzed. Presence of pathogens was examined using real-time polymerase chain reaction (q-PCR) after enrichment of samples. For all, the microbial counts ranged from 1.7 to 10.6 log cfu/g for AMB, 2.2 to 7.9 log cfu/g for coliforms, and 5.5 to 7.9 log cfu/g for YM. Three lettuce samples were contaminated by E. coli with a bacterial load ranging from 2 to 4 log cfu/g. Salmonella spp. were not detected in any fresh produce. Listeria monocytogenes, E. coli O157:H7, and Staphylococcus aureus were found in 1 (0.6%), 3 (0.8%), and 5 (1.4%) fresh produce samples, respectively. Bacillus cereus (50.3%) and Clostridium perfringens (13.3%) had the highest prevalence. These results indicate the need for employing strict control measures and developing preventive strategies to improve the quality and safety of fresh produce in Korea. PMID- 29337345 TI - Sputum cytology during late-phase responses to inhalation challenge with different allergens. AB - BACKGROUND: In mouse models of allergic asthma, exposure to different allergens can trigger distinct inflammatory subtypes in the airways. We investigated whether this observation extends to humans. METHODS: We compared the frequency of sputum inflammatory subtypes between mild allergic asthma subjects (n = 129) exposed to different allergens in inhalation challenge tests. These tests were performed using a standardized protocol as part of clinical trials of experimental treatments for asthma, prior to drug randomization. Five allergen types were represented: the house dust mites Dermatophagoides pteronyssinus and Dermatophagoides farinae, ragweed, grass, and cat. RESULTS: Of 118 individuals with a sputum sample collected before allergen challenge (baseline), 45 (38%) had paucigranulocytic, 51 (43%) eosinophilic, 11 (9%) neutrophilic, and 11 (9%) mixed granulocytic sputum. Of note, most individuals with baseline paucigranulocytic sputum developed eosinophilic (48%) or mixed granulocytic (43%) sputum 7 hours after allergen challenge, highlighting the dynamic nature of sputum inflammatory subtype in asthma. Overall, there was no difference in the frequency of sputum inflammatory subtypes following challenge with different allergen types. Similar results were observed at 24 hours after allergen challenge. CONCLUSIONS: Unlike reported in mice, in humans the sputum inflammatory subtype observed after an allergen-induced asthma exacerbation is unlikely to be influenced by the type of allergen used. PMID- 29337346 TI - Effective role of medium supplementation in microalgal lipid accumulation. AB - The present study investigated the interaction between starch and lipid accumulation in a green microalgae enrichment culture. The objective was to optimize the lipid content by manipulation of the medium in regular batch culture. Two medium designs were evaluated: First a high ortho-P concentration with vitamin supplementary (Pi-vitamins supplemented medium), second normal growth medium (control). Both media contained a low amount of nitrogen which was consumed during batch growth in three days. The batch experiments continued for another 4 days with the absence of soluble nitrogen in the medium. When the mixed microalgal culture was incubated in the Pi-vitamin supplemented medium, the lipid, and starch content of the culture increased within the first 3 days to 102.0 +/- 5.2 mg/L (12.7 +/- 0.6% of DW) and 31.7 +/- 1.6 mg/L (4.0 +/- 0.2% of DW), respectively. On the last day of the experiment, the lipid, and starch content in Pi-vitamin medium increased to 663.1 +/- 32.5 mg/L (33.4 +/- 1.6% of DW) and 127.5 +/- 5.2 mg/L (6.4 +/- 0.3% of DW). However, the lipid and starch content in the control process, reached to 334.7 +/- 16.4 mg/L (20.1 +/- 1.0% of DW) and 94.3 +/- 4.6 mg/L (5.7 +/- 0.3% of DW), respectively. The high Pi-vitamin medium induced storing lipid formation clearly while the starch formation was not affected. The lipid contents reported here are among the high reported in the literature, note that already under full growth conditions significant lipid levels occurred in the algal enrichment culture. The high lipid productivity of the reported mixed microalgae culture provides an efficient route for efficient algal biodiesel production. PMID- 29337347 TI - A latent state-trait analysis of interoceptive accuracy. AB - Interoceptive accuracy (IAc), that is, the ability to accurately perceive one's own bodily signals, is widely assumed to be a trait, although experimental manipulations such as stress may affect IAc. We used structural equation modeling to estimate the reliability of IAc, and the proportions of individual differences in IAc, explained by a trait and occasion-specific effects of situation and person-situation interactions. We assessed IAc in 59 healthy participants (40 women, MAge = 23.4 years) on three consecutive measurement occasions, approximately 1 week apart, in a rest and poststress condition, using a heartbeat counting and a heartbeat discrimination task. The results showed fair temporal stability (intraclass correlation coefficients >= 0.38) and good reliability (Mdn = .63; range .49-.83) for both methods. While around 40% of the variance of a single IAc measurement could be explained by a trait, approximately 27% was accounted for by occasion-specific effects of situation and person-situation interaction. These results suggest that IAc measures are relatively consistent and that situations and person-situation interactions impact IAc as measured at a certain point in time. An aggregation across at least two measurements is recommended when using IAc as a trait variable. PMID- 29337348 TI - Expression of the purine biosynthetic enzyme phosphoribosyl formylglycinamidine synthase in neurons. AB - Purines are metabolic building blocks essential for all living organisms on earth. De novo purine biosynthesis occurs in the brain and appears to play important roles in neural development. Phosphoribosyl formylglycinamidine synthase (FGAMS, also known as PFAS or FGARAT), a core enzyme involved in the de novo synthesis of purines, may play alternative roles in viral pathogenesis. To date, no thorough investigation of the endogenous expression and localization of de novo purine biosynthetic enzymes has been conducted in human neurons or in virally infected cells. In this study, we characterized expression of FGAMS using multiple neuronal models. In differentiated human SH-SY5Y neuroblastoma cells, primary rat hippocampal neurons, and in whole-mouse brain sections, FGAMS immunoreactivity was distributed within the neuronal cytoplasm. FGAMS immunolabeling in vitro demonstrated extensive distribution throughout neuronal processes. To investigate potential changes in FGAMS expression and localization following viral infection, we infected cells with the human pathogen herpes simplex virus 1. In infected fibroblasts, FGAMS immunolabeling shifted from a diffuse cytoplasmic location to a mainly perinuclear localization by 12 h post infection. In contrast, in infected neurons, FGAMS localization showed no discernable changes in the localization of FGAMS immunoreactivity. There were no changes in total FGAMS protein levels in either cell type. Together, these data provide insight into potential purine biosynthetic mechanisms utilized within neurons during homeostasis as well as viral infection. Cover Image for this Issue: doi: 10.1111/jnc.14169. PMID- 29337349 TI - Phytochemicals, Anti-Inflammatory, Antiproliferative, and Methylglyoxal Trapping Properties of Zijuan Tea. AB - : Zijuan tea (Camellia sinensis var. assamica) is a unique anthocyanin-rich tea cultivar in China. Although chemical component analysis of Zijuan tea and extraction technology of anthocyanins was widely documented, its functional properties have not been extensively explored. In this study, the anti inflammatory, antiproliferative, and methylglyoxal (MGO) trapping activities of water extract (ZWE) and ethyl acetate extract (ZEE) of Zijuan tea were investigated for the 1st time. Results showed that ZWE and ZEE exhibited inhibitory effects on nitric oxide (NO), tumor necrosis factor (TNF)-alpha, and interleukin (IL)-6 production as well as inducible nitric oxide synthase protein (iNOS) expression in lipopolysaccharide (LPS)-induced RAW 264.7 macrophages. Moreover, Zijuan tea extracts exerted stronger antiproliferative activity against HCT-116 cells compared with HepG2 and MDA-MB-231 cells, and thus could induce apoptosis in HCT-116 cells in a dose-dependent manner. Furthermore, Zijuan tea extracts were effective in trapping MGO under simulated physiological conditions, and the T1/2 (the time for 50% MGO remaining) values of ZWE and ZEE were 3.69 and 6.20 min, respectively. Additionally, the contents of total phenolics and catechins in ZEE were 685.43 +/- 16.00 and 454.96 +/- 4.21 mg/g extract, respectively, and in ZWE were 422.59 +/- 12.09 and 307.29 +/- 0.85 mg/g extract, respectively. Therefore, ZEE exhibited better anti-inflammatory, antiproliferative, and MGO trapping properties than ZWE may be mainly attributed to its higher (P < 0.05) content of total phenolics, expecially catechins. These results suggest that Zijuan tea could be a potential natural resource for the development of functional tea beverage. PRACTICAL APPLICATION: This study revealed that Zijuan tea extracts possessed anti-inflammatory, antiproliferative, and methylglyoxal trapping potentials in vitro. With high anthocyanins and polyphenols, Zijuan tea can be developed into a healthy tea beverage or used as a natural component to reduce the level of methylglyoxal in Maillard reaction. PMID- 29337350 TI - Alterations in mGlu5 receptor expression and function in the striatum in a rat depression model. AB - Major depressive disorder is a common form of mental illness. Many brain regions are implicated in the pathophysiology and symptomatology of depression. Among key brain areas is the striatum that controls reward and mood and is involved in the development of core depression-like behavior in animal models of depression. While molecular mechanisms in this region underlying depression-related behavior are poorly understood, the glutamatergic input to the striatum is believed to play a role. In this study, we investigated changes in metabotropic glutamate (mGlu) receptor expression and signaling in the striatum of adult rats in response to prolonged (10-12 weeks) social isolation, a pre-validated animal paradigm modeling depression in adulthood. We found that mGlu5 receptor protein levels in the striatum were increased in rats that showed typical depression- and anxiety-like behavior after chronic social isolation. This increase in mGlu5 receptor expression was seen in both subdivisions of the striatum, the nucleus accumbens and caudate putamen. At subcellular and subsynaptic levels, mGlu5 receptor expression was elevated in surface membranes at synaptic sites. In striatal neurons, the mGlu5-associated phosphoinositide signaling pathway was augmented in its efficacy after prolonged social isolation. These data indicate that the mGlu5 receptor is a sensitive substrate of depression. Adulthood social isolation leads to the up-regulation of mGlu5 receptor expression and function in striatal neurons. PMID- 29337351 TI - Selection of Yeast Strains for Tequila Fermentation Based on Growth Dynamics in Combined Fructose and Ethanol Media. AB - : The high concentration of fructose in agave juice has been associated with reduced ethanol tolerance of commercial yeasts used for tequila production and low fermentation yields. The selection of autochthonous strains, which are better adapted to agave juice, could improve the process. In this study, a 2-step selection process of yeasts isolated from spontaneous fermentations for tequila production was carried out based on analysis of the growth dynamics in combined conditions of high fructose and ethanol. First, yeast isolates (605) were screened to identify strains tolerant to high fructose (20%) and to ethanol (10%), yielding 89 isolates able to grow in both conditions. From the 89 isolates, the growth curves under 8 treatments of combined fructose (from 20% to 5%) and ethanol (from 0% to 10%) were obtained, and the kinetic parameters were analyzed with principal component analysis and k-means clustering. The resulting yeast strain groups corresponded to the fast, medium and slow growers. A second clustering of only the fast growers led to the selection of 3 Saccharomyces strains (199, 230, 231) that were able to grow rapidly in 4 out of the 8 conditions evaluated. This methodology differentiated strains phenotypically and could be further used for strain selection in other processes. PRACTICAL APPLICATION: A method to select yeast strains for fermentation taking into account the natural differences of yeast isolates. This methodology is based on the cell exposition to combinations of sugar and ethanol, which are the most important stress factors in fermentation. This strategy will help to identify the most tolerant strain that could improve ethanol yield and reduce fermentation time. PMID- 29337352 TI - Genetic removal of eIF2alpha kinase PERK in mice enables hippocampal L-LTP independent of mTORC1 activity. AB - Characterization of the molecular signaling pathways underlying protein synthesis dependent forms of synaptic plasticity, such as late long-term potentiation (L LTP), can provide insights not only into memory expression/maintenance under physiological conditions but also potential mechanisms associated with the pathogenesis of memory disorders. Here, we report in mice that L-LTP failure induced by the mammalian (mechanistic) target of rapamycin complex 1 (mTORC1) inhibitor rapamycin is reversed by brain-specific genetic deletion of PKR-like ER kinase, PERK (PERK KO), a kinase for eukaryotic initiation factor 2alpha (eIF2alpha). In contrast, genetic removal of general control non-derepressible-2, GCN2 (GCN2 KO), another eIF2alpha kinase, or treatment of hippocampal slices with the PERK inhibitor GSK2606414, does not rescue rapamycin-induced L-LTP failure, suggesting mechanisms independent of eIF2alpha phosphorylation. Moreover, we demonstrate that phosphorylation of eukaryotic elongation factor 2 (eEF2) is significantly decreased in PERK KO mice but unaltered in GCN2 KO mice or slices treated with the PERK inhibitor. Reduction in eEF2 phosphorylation results in increased general protein synthesis, and thus could contribute to the mTORC1 independent L-LTP in PERK KO mice. We further performed experiments on mutant mice with genetic removal of eEF2K (eEF2K KO), the only known kinase for eEF2, and found that L-LTP in eEF2K KO mice is insensitive to rapamycin. These data, for the first time, connect reduction in PERK activity with the regulation of translation elongation in enabling L-LTP independent of mTORC1. Thus, our findings indicate previously unrecognized levels of complexity in the regulation of protein synthesis-dependent synaptic plasticity. Read the Editorial Highlight for this article on page 119. Cover Image for this issue: doi: 10.1111/jnc.14185. PMID- 29337353 TI - Consumer Acceptance Comparison Between Seasoned and Unseasoned Vegetables. AB - : Recent findings show that approximately 87% of the U.S. population fail to meet the vegetable intake recommendations, with unpleasant taste of vegetables being listed as the primary reason for this shortfall. In this study, spice and herb seasoning was used to enhance palatability of vegetables, in order to increase consumer acceptance. In total, 749 panelists were screened and recruited as specific vegetable likers of the vegetable being tested or general vegetable likers. Four sessions were designed to evaluate the effect of seasoning within each type of vegetable, including broccoli, cauliflower, carrot, and green bean. Each panelist was only allowed to participate in one test session to evaluate only one vegetable type, so as to mitigate potential learning effect. Overall, the results showed that seasoned vegetables were significantly preferred over unseasoned vegetables (P < 0.001), indicating the sensory properties were significantly improved with seasoning. When general vegetable likers and specific vegetable likers were compared in terms of their preference between seasoned and unseasoned vegetables, the pattern varied across different vegetables; however, general trend of seasoned vegetable being preferred remained. The findings from this study demonstrate the effect of seasoning in enhancing consumer liking of vegetables, which may lead to increased consumption to be assessed in future studies. PRACTICAL APPLICATION: To improve the sensory properties of vegetables, masking the bitter taste of vegetables using spice and herb seasoning are gaining increasing attention. Our findings suggest that the overall liking of vegetables could be improved by incorporating spice and herb seasonings that are specifically formulated for each vegetable. Ultimately, developing and commercializing spice and herb seasonings may aid to increase vegetable consumption, as well as expanding the vegetable seasoning market. PMID- 29337354 TI - Current spring warming as a driver of selection on reproductive timing in a wild passerine. AB - Evolutionary adaptation as a response to climate change is expected for fitness related traits affected by climate and exhibiting genetic variance. Although the relationship between warmer spring temperature and earlier timing of reproduction is well documented, quantifications and predictions of the impact of global warming on natural selection acting on phenology in wild populations remain rare. If global warming affects fitness in a similar way across individuals within a population, or if fitness consequences are independent of phenotypic variation in key-adaptive traits, then no evolutionary response is expected for these traits. Here, we quantified the selection pressures acting on laying date during a 24 year monitoring of blue tits in southern Mediterranean France, a hot spot of climate warming. We explored the temporal fluctuation in annual selection gradients and we determined its temperature-related drivers. We first investigated the month-specific warming since 1970 in our study site and tested its influence on selection pressures, using a model averaging approach. Then, we quantified the selection strength associated with temperature anomalies experienced by the blue tit population. We found that natural selection acting on laying date significantly fluctuated both in magnitude and in sign across years. After identifying a significant warming in spring and summer, we showed that warmer daily maximum temperatures in April were significantly associated with stronger selection pressures for reproductive timing. Our results indicated an increase in the strength of selection by 46% for every +1 degrees C anomaly. Our results confirm the general assumption that recent climate change translates into strong selection favouring earlier breeders in passerine birds. Our findings also suggest that differences in fitness among individuals varying in their breeding phenology increase with climate warming. Such climate-driven influence on the strength of directional selection acting on laying date could favour an adaptive response in this trait, since it is heritable. PMID- 29337355 TI - Moisture Adsorption Isotherm and Storability of Hazelnut Inshells and Kernels Produced in Oregon, USA. AB - : Moisture adsorption isotherms and storability of dried hazelnut inshells and kernels produced in Oregon were evaluated and compared among cultivars, including Barcelona, Yamhill, and Jefferson. Experimental moisture adsorption data fitted to Guggenheim-Anderson-de Boer (GAB) model, showing less hygroscopic properties in Yamhill than other cultivars of inshells and kernels due to lower content of carbohydrate and protein, but higher content of fat. The safe levels of moisture content (MC, dry basis) of dried inshells and kernels for reaching kernel water activity (aw ) <=0.65 were estimated using the GAB model as 11.3% and 5.0% for Barcelona, 9.4% and 4.2% for Yamhill, and 10.7% and 4.9% for Jefferson, respectively. Storage conditions (2 degrees C at 85% to 95% relative humidity [RH], 10 degrees C at 65% to 75% RH, and 27 degrees C at 35% to 45% RH), times (0, 4, 8, or 12 mo), and packaging methods (atmosphere vs. vacuum) affected MC, aw , bioactive compounds, lipid oxidation, and enzyme activity of dried hazelnut inshells or kernels. For inshells packaged at woven polypropylene bag, MC and aw of inshells and kernels (inside shells) increased at 2 and 10 degrees C, but decreased at 27 degrees C during storage. For kernels, lipid oxidation and polyphenol oxidase activity also increased with extended storage time (P < 0.05), and MC and aw of vacuum packaged samples were more stable during storage than those atmospherically packaged ones. Principal component analysis showed correlation of kernel qualities with storage condition, time, and packaging method. This study demonstrated that the ideal storage condition or packaging method varied among cultivars due to their different moisture adsorption and physicochemical and enzymatic stability during storage. PRACTICAL APPLICATION: Moisture adsorption isotherm of hazelnut inshells and kernels is useful for predicting the storability of nuts. This study found that water adsorption and storability varied among the different cultivars of nuts, in which Yamhill was less hygroscopic than Barcelona and Jefferson, thus more stable during storage. For ensuring food safety and quality of nuts during storage, each cultivar of kernels should be dried to a certain level of MC. Lipid oxidation and enzyme activity of kernel could be increased with extended storage time. Vacuum packaging was recommended to kernels for reducing moisture adsorption during storage. PMID- 29337356 TI - Stabilizing selection on sperm number revealed by artificial selection and experimental evolution. AB - Sperm competition is taxonomically widespread in animals and is usually associated with large sperm production, being the number of sperm in the competing pool the prime predictor of fertilization success. Despite the strong postcopulatory selection acting directionally on sperm production, its genetic variance is often very high. This can be explained by trade-offs between sperm production and traits associated with mate acquisition or survival, that may contribute to generate an overall stabilizing selection. To investigate this hypothesis, we first artificially selected male guppies (Poecilia reticulata) for high and low sperm production for three generations, while simultaneously removing sexual selection. Then, we interrupted artificial selection and restored sexual selection. Sperm production responded to divergent selection in one generation, and when we restored sexual selection, both high and low lines converged back to the mean sperm production of the original population within two generations, indicating that sperm number is subject to strong stabilizing total sexual selection (i.e., selection acting simultaneously on all traits associated with reproductive success). We discuss the possible mechanisms responsible for the maintenance of high genetic variability in sperm production despite strong selection acting on it. PMID- 29337363 TI - Inhibition of apoptosis using exosomes in Chinese hamster ovary cell culture. AB - Animal cell culture technology for therapeutic protein production has shown significant improvement over the last few decades. Chinese hamster ovary (CHO) cells have been widely adapted for the production of biopharmaceutical drugs. In the biopharmaceutical industry, it is crucial to develop cell culture media and culturing conditions to achieve the highest productivity and quality. However, CHO cells are significantly affected by apoptosis in the bioreactors, resulting in a substantial decrease in product quantity and quality. Thus, to overcome the obstacle of apoptosis in CHO cell culture, it is critical to develop a novel method that does not have minimal concern of safety or cost. Herein, we showed for the first time that exosomes, which are nano-sized extracellular vesicles, derived from CHO cells inhibited apoptosis in CHO cell culture when supplemented to the culture medium. Flow cytometric and microscopic analyses revealed that substantial amounts of exosomes were delivered to CHO cells. Higher cell viability after staurosporine treatment was observed by exosome supplementation (67.3%) as compared to control (41.1%). Furthermore, exosomes prevented the mitochondrial membrane potential loss and caspase-3 activation, meaning that the exosomes enhanced cellular activities under pro-apoptotic condition. As the exosomes supplements are derived from CHO cells themselves, it is not only beneficial for the biopharmaceutical productivity of CHO cell culture to inhibit apoptosis, but also from a regulatory standpoint to diminish any safety concerns. Thus, we conclude that the method developed in this research may contribute to the biopharmaceutical industry where minimizing apoptosis in CHO cell culture is beneficial. PMID- 29337364 TI - The Function of Emulsions on the Biogenic Amine Formation and their Indices of Sea Bass Fillets (Dicentrarchus Labrax) Stored in Vacuum Packaging. AB - : The impacts of emulsions based on commercial oils on the biogenic amine formation and their indices of vacuumed packed sea bass fillets were investigated. The results showed that among biogenic amines, cadaverine, putrescine, spermidine, spermine, serotonin, dopamine, and agmatine were predominant amines in sea bass fillets stored under vacuum packaging. Significant differences (P < 0.05) in biogenic amines concentrations of vacuumed packed sea bass treated with emulsions were observed. All groups contained histamine lower than 5.0 mg/100 g, regarded as the allowable limit by the U.S. Food and Drug Administration. Polyamine levels were not affected by application of emulsion. Quality index (QI) showed an increase and after 14 d of storage it decreased in all groups. The control generally seemed to higher QI value than those of treatment groups except at 14 and 18 days while soybean and corn gave lower QI among treatment groups. Only biogenic amine index correlated with sensory acceptability of vacuumed packed sea bass, indicating that this index can be used for determination of the degree of spoilage of vacuumed packed sea bass. Emulsions extended the shelf-life (approximately 2 to 4 d) of vacuumed packed sea bass fillets by inhibiting microbial growth compared to the control. PRACTICAL APPLICATION: Emulsions have become popular since they are regarded as ideal carrier for the delivery of lipophilic substances due to the ease of preparation, small particle size, their enhanced bioavailability, and long term kinetic stability. They have been proven to be self-preserving antimicrobials due to bound water in their structure and thus no available water to microorganisms. Antimicrobial emulsions have potential applications in many fields because they are inexpensive, stable, and nontoxic agents. PMID- 29337365 TI - Loss of STI1-mediated neuronal survival and differentiation in disease-associated mutations of prion protein. AB - Cellular prion protein (PrPC ) is widely expressed and displays a variety of well described functions in the central nervous system (CNS). Mutations of the PRNP gene are known to promote genetic human spongiform encephalopathies, but the components of gain- or loss-of-function mutations to PrPC remain a matter for debate. Among the proteins described to interact with PrPC is Stress-inducible protein 1 (STI1), a co-chaperonin that is secreted from astrocytes and triggers neuroprotection and neuritogenesis through its interaction with PrPC . In this work, we evaluated the impact of different PrPC pathogenic point mutations on signaling pathways induced by the STI1-PrPC interaction. We found that some of the pathogenic mutations evaluated herein induce partial or total disruption of neuritogenesis and neuroprotection mediated by mitogen-activated protein kinase (MAPK)/extracellular signal-regulated kinases 1 and 2 (ERK1/2) and protein kinase A (PKA) signaling triggered by STI1-PrPC engagement. A pathogenic mutant PrPC that lacked both neuroprotection and neuritogenesis activities fail to promote negative dominance upon wild-type PrPC . Also, a STI1-alpha7-nicotinic acetylcholine receptor-dependent cellular signaling was present in a PrPC mutant that maintained both neuroprotection and neuritogenesis activities similar to what has been previously observed by wild-type PrPC . These results point to a loss-of-function mechanism underlying the pathogenicity of PrPC mutations. PMID- 29337366 TI - Replenishment of Docosahexaenoic Acid (DHA) in Dietary n-3-Deficient Mice Fed DHA in Triglycerides or Phosphatidylcholines After Weaning. AB - : Previous studies have shown that DHA in triglyceride (TG) and phosphatidylcholine (PC) forms are different in their bioavailability. The aim of this study was to investigate the comparative effects of DHA-TG and DHA-PC on tissue DHA accretion in dietary n-3 polyunsaturated fatty acid deficient (n-3 Def) mice. The mice were fed with n-3 Def diet containing DHA-TG or DHA-PC (5 g/kg diet) for 2, 4, 7, or 14 d after weaning, respectively. The DHA levels in the cortex, liver, testis, and erythrocytes were analyzed by gas chromatography. For liver, DHA mainly existed in hepatic phospholipids relative to triglycerides. Both DHA-TG and DHA-PC could recover the hepatic DHA to a normal level. Interestingly, DHA-TG was more effective in increasing the DHA level in hepatic triglycerides, and DHA-PC was more effective in increasing the DHA level in hepatic phospholipids. For erythrocytes, during the first 7 d, no difference was observed after dietary DHA-TG and DHA-PC but a significantly higher DHA percentage was detected in the DHA-PC group after 14 d. For cortex, the DHA-TG group showed a higher cortical DHA level at the 4th day, but the DHA-PC group showed a higher cortical DHA level with a greater slope from Day 7 to Day 14, and the same trend was observed in testis. But unexpectedly, the DHA level in testis showed a downtrend from Day 7 to Day 14. This study suggests that, under dietary n-3-deficient condition, both DHA-TG and DHA-PC could recover the DHA level in tissues after weaning, and DHA-PC showed a better supplemental effect. PRACTICAL APPLICATION: Dietary DHA is essential for neurodevelopment which is usually accompanied by large amounts of DHA accretion in the brain. Our present study showed that DHA-PC had a better efficiency for DHA accretion in the brain and other tissues compared with DHA-TG. The findings are supposed to pave the way for the DHA in phospholipids as a novel nutrient added into the infant formula and assisted food for neurodevelopment. PMID- 29337367 TI - Correlation of simulation/finite element analysis to the separation of intrinsically magnetic spores and red blood cells using a microfluidic magnetic deposition system. AB - Magnetic separation of cells has been, and continues to be, widely used in a variety of applications, ranging from healthcare diagnostics to detection of food contamination. Typically, these technologies require cells labeled with antibody magnetic particle conjugate and a high magnetic energy gradient created in the flow containing the labeled cells (i.e., a column packed with magnetically inducible material), or dense packing of magnetic particles next to the flow cell. Such designs, while creating high magnetic energy gradients, are not amenable to easy, highly detailed, mathematic characterization. Our laboratories have been characterizing and developing analysis and separation technology that can be used on intrinsically magnetic cells or spores which are typically orders of magnitude weaker than typically immunomagnetically labeled cells. One such separation system is magnetic deposition microscopy (MDM) which not only separates cells, but deposits them in specific locations on slides for further microscopic analysis. In this study, the MDM system has been further characterized, using finite element and computational fluid mechanics software, and separation performance predicted, using a model which combines: 1) the distribution of the intrinsic magnetophoretic mobility of the cells (spores); 2) the fluid flow within the separation device; and 3) accurate maps of the values of the magnetic field (max 2.27 T), and magnetic energy gradient (max of 4.41 T2 /mm) within the system. Guided by this model, experimental studies indicated that greater than 95% of the intrinsically magnetic Bacillus spores can be separated with the MDM system. Further, this model allows analysis of cell trajectories which can assist in the design of higher throughput systems. PMID- 29337368 TI - Stability and Antioxidant Activity of Annatto (Bixa orellana L.) Tocotrienols During Frying and in Fried Tortilla Chips. AB - : Annatto tocotrienols (AnT3), which contain approximately 90% delta-tocotrienol (delta-T3), were added to mid-oleic sunflower oil used for frying tortilla chips over 3 d. The objectives were to evaluate their stability during frying, absorption by the fried food, and activity as antioxidants in frying oil and in tortilla chips during storage. AnT3 did not significantly affect the stability of the oil during frying or the sensory profiles of freshly fried chips. The naturally present alpha-tocopherol (alpha-T) in the oil degraded at a lower rate in the presence of AnT3, resulting in significantly higher alpha-T by the end of the frying study. Levels of tocopherols and tocotrienols in the chips mirrored oil levels. AnT3 did not affect the sensory profile of the chips after 1 wk of storage at 50 degrees C, but after 3 wk of storage, the control chips had higher levels of painty and rancid flavors compared to chips with AnT3. Headspace hexanal was also significantly higher in the control chips compared to the chips with AnT3 after 3 wk of storage. PRACTICAL APPLICATION: Annatto tocotrienols, containing primarily delta- and gamma-tocotrienols, were added to mid-oleic sunflower oil used for frying tortilla chips. The tocotrienols were absorbed by the chips along with the oil. They slowed the degradation of alpha tocopherol during frying, and reduced levels of painty and rancid flavor scores as well as headspace hexanal in chips that were stored for 3 wk at elevated temperatures. The results indicated that fried snack foods such as tortilla chips may be a suitable and convenient vehicle for enriching tocotrienols in the diet, and that tocotrienols may also enhance the shelf-life of fried foods. PMID- 29337369 TI - Hepatoprotective Effects of the Honey of Apis cerana Fabricius on Bromobenzene Induced Liver Damage in Mice. AB - Apis cerana honey (honey of Apis cerana Fabricius), widely distributed in the mountain areas of East Asia, has not been studied fully. The hepatoprotective activity of A. cerana honey was evaluated against bromobenzene-induced liver damage in mice. In high dose, A. cerana honey can significantly alleviate liver injury, as is indicated by the depressed levels of serum alanine aminotransferase (ALT) (59.13%) and aspartate aminotransferase (AST) (79.71%), the inhibited malondialdehyde (MDA) content (63.30%), the elevated activities of superoxide dismutase (SOD) (73.12%) and glutathione-Px (57.24%), and the decreased expression of Transforming growth factor beta1 (51.83%) induced by bromobenzene (P < 0.05). The quantitative analysis of twelve major constituents (1 to 12) of A. cerana honey was executed by high performance liquid chromatography-diode array detector. The results indicate that treatment with A. cerana honey can prevent bromobenzene-induced hepatic damage in mice. Polyphenols might be the bioactive substances attributed to its antioxidant properties and intervention of oxidative stress. PMID- 29337371 TI - Avian Retrovirus-Mediated Tumor-Specific Gene Knockout. AB - The RCAS (replication-competent avian sarcoma leukosis virus long-terminal repeat with splice acceptor)-TVA (tumor virus A) gene delivery system has been successfully used in modeling human cancers. Based on this, we have recently developed a novel RCI-Oncogene (RCAS-Cre-IRES-Oncogene) gene delivery system that can be used to efficiently manipulate gene expression in spontaneous tumors in vivo. We used this system for tumor gene knockout (TuKO) and demonstrated a crucial role of FGFR1 in driving mammary tumor metastasis. This versatile tumor gene modification system can also be adapted into different configurations to address different questions in appropriate mutant mouse hosts. Here we describe a protocol using the TuKO approach to knock out a gene of interest in tumors in appropriate hosts. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337370 TI - Modulating Gene Expression in Epstein-Barr Virus (EBV)-Positive B Cell Lines with CRISPRa and CRISPRi. AB - Epstein-Barr virus (EBV) transforms small resting primary B cells into large lymphoblastoid cells which are able to grow and survive in vitro indefinitely. These cells represent a model for oncogenesis. In this unit, variants of conventional clustered regularly interspaced short palindromic repeats (CRISPR), namely the CRISPR activation (CRISPRa) and CRISPR interference (CRISPRi) methods, are discussed in the context of gene regulation at genomic DNA promoter and enhancer elements. Lymphoblastoid B cell lines (LCLs) stably expressing nuclease deficient Cas9 (dCas9)-VP64 (Cas9 associated with CRISPRa) or dCas9-KRAB (Cas9 associated with CRISPRi) are transduced with lentivirus that encodes a single guide RNA (sgRNA) that targets a specific gene locus. The ribonucleoprotein complex formed by the dCas9 molecule and its cognate sgRNA enables sequence specific binding at a promoter or enhancer of interest to affect the expression of genes regulated by the targeted promoter or enhancer. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337372 TI - CRISPR-Cas9-Edited Site Sequencing (CRES-Seq): An Efficient and High-Throughput Method for the Selection of CRISPR-Cas9-Edited Clones. AB - The emergence of clustered regularly interspaced short palindromic repeats-Cas9 (CRISPR-Cas9) gene editing systems has enabled the creation of specific mutants at low cost, in a short time and with high efficiency, in eukaryotic cells. Since a CRISPR-Cas9 system typically creates an array of mutations in targeted sites, a successful gene editing project requires careful selection of edited clones. This process can be very challenging, especially when working with multiallelic genes and/or polyploid cells (such as cancer and plants cells). Here we described a next-generation sequencing method called CRISPR-Cas9 Edited Site Sequencing (CRES Seq) for the efficient and high-throughput screening of CRISPR-Cas9-edited clones. CRES-Seq facilitates the precise genotyping up to 96 CRISPR-Cas9-edited sites (CRES) in a single MiniSeq (Illumina) run with an approximate sequencing cost of $6/clone. CRES-Seq is particularly useful when multiple genes are simultaneously targeted by CRISPR-Cas9, and also for screening of clones generated from multiallelic genes/polyploid cells. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337373 TI - Making Use of Cancer Genomic Databases. AB - The vast amounts of genomic data now deposited in public repositories represent rich resources for cancer researchers. Large-scale genomics initiatives such as The Cancer Genome Atlas have made available data from multiple molecular profiling platforms (e.g., somatic mutation, RNA and protein expression, and DNA methylation) for the same set of over 10,000 human tumors. There has been much collective effort toward providing user-friendly software tools for biologists lacking computational skills to ask questions of large-scale genomic datasets. At the same time, there remains a clear need for skilled bioinformatics analysts to answer the types of questions that cannot easily be addressed using the public user-friendly software tools. This overview introduces the reader to the many resources available for working with cancer genomic databases. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337374 TI - Pooled Lentiviral-Delivery Genetic Screens. AB - Pooled cell-based screens of mammalian genetic perturbations enable systematic large-scale, even genome-scale, evaluation of gene function. Pooled screens introduce genetic perturbations into a cell population through viral transduction such that each cell integrates into its DNA a single or small number of library perturbations with barcodes identifying the perturbations. One then selects and physically isolates the subset of cells that exhibit the phenotype of interest. Sequencing the barcodes in the hit cells reveals which genes favored or inhibited the hit phenotype. Various genetic perturbations are possible, including CRISPR gene knockout, ectopic gene expression, and RNA interference. Regardless of the type of library being screened or the type of cell model being tested, such screens involve many common steps and procedures. This unit describes detailed experimental protocols for the key steps, and also highlights some of the key factors to achieving a well-powered, reproducible screen result. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337375 TI - Transfection by Electroporation. AB - Electroporation-the use of high-voltage electric shocks to introduce DNA into cells-can be used with most cell types, yields a high frequency of both stable transformation and transient gene expression, and, because it requires fewer steps, can be easier than alternate techniques. This unit describes electroporation of mammalian cells, including ES cells for the preparation of knock-out, knock-in, and transgenic mice. Protocols are described for the use of electroporation in vivo to perform gene therapy for cancer therapy and DNA vaccination. Also described are modifications for preparation and transfection of plant protoplasts. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337376 TI - CRISPR/Cas9-Mediated Genome Editing in Epstein-Barr Virus-Transformed Lymphoblastoid B-Cell Lines. AB - Epstein-Barr virus (EBV) efficiently transforms primary human B cells into immortalized lymphoblastoid cell lines (LCLs), which are extensively used in human genetic, immunological and virological studies. LCLs provide unlimited sources of DNA for genetic investigation, but can be difficult to manipulate, for instance because low retroviral or lentiviral transduction frequencies hinder experiments that require co-expression of multiple components. This unit details Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)/Cas9 engineering for robust LCL genome editing. We describe the generation and delivery of single-guide RNAs (sgRNAs), or dual-targeting sgRNAs, via lentiviral transduction of LCLs that stably express Cas9 protein. CRISPR/Cas9 editing allows LCL loss-of-function studies, including knock-out of protein-coding genes or deletion of DNA regulatory elements, and can be adapted for large-scale screening approaches. Low transfection efficiencies are a second barrier to performing CRISPR editing in LCLs, which are not typically lipid-transfectable. To circumvent this barrier, we provide an optimized protocol for LCL nucleofection of Cas9/sgRNA ribonucleoprotein complexes (RNPs) as an alternative route to achieve genome editing in LCLs. These editing approaches can also be employed in other B-cell lines, including Burkitt lymphoma and diffuse large B-cell lymphoma cells, and are highly reproducible. (c) 2018 by John Wiley & Sons, Inc. PMID- 29337377 TI - Ultrafast Laser-Shock-Induced Confined Metaphase Transformation for Direct Writing of Black Phosphorus Thin Films. AB - Few-layer black phosphorus (BP) has emerged as one of the most promising candidates for post-silicon electronic materials due to its outstanding electrical and optical properties. However, lack of large-scale BP thin films is still a major roadblock to further applications. The most widely used methods for obtaining BP thin films are mechanical exfoliation and liquid exfoliation. Herein, a method of directly synthesizing continuous BP thin films with the capability of patterning arbitrary shapes by employing ultrafast laser writing with confinement is reported. The physical mechanism of confined laser metaphase transformation is understood by molecular dynamics simulation. Ultrafast laser ablation of BP layer under confinement can induce transient nonequilibrium high temperature and high-pressure conditions for a few picoseconds. Under optimized laser intensity, this process induces a metaphase transformation to form a crystalline BP thin film on the substrate. Raman spectroscopy, atomic force microscopy, and transmission electron microscopy techniques are utilized to characterize the morphology of the resulting BP thin films. Field-effect transistors are fabricated on the BP films to study their electrical properties. This unique approach offers a general methodology to mass produce large-scale patterned BP films with a one-step manufacturing process that has the potential to be applied to other 2D materials. PMID- 29337378 TI - Resemblance of a model species and its mimic: Response to Bury and Cichon. PMID- 29337379 TI - Interleukin-17A and vascular remodelling in severe asthma; lack of evidence for a direct role. AB - BACKGROUND: Bronchial vascular remodelling may contribute to the severity of airway narrowing through mucosal congestion. Interleukin (IL)-17A is associated with the most severe asthmatic phenotype but whether it might contribute to vascular remodelling is uncertain. OBJECTIVE: To assess vascular remodelling in severe asthma and whether IL-17A directly or indirectly may cause endothelial cell activation and angiogenesis. METHODS: Bronchial vascularization was quantified in asthmatic subjects, COPD and healthy subjects together with the number of IL-17A+ cells as well as the concentration of angiogenic factors in the sputum. The effect of IL-17A on in vitro angiogenesis, cell migration and endothelial permeability was assessed directly on primary human lung microvascular endothelial cells (HMVEC-L) or indirectly with conditioned medium derived from normal bronchial epithelial cells (NHBEC), fibroblasts (NHBF) and airway smooth muscle cells (ASMC) after IL-17A stimulation. RESULTS: Severe asthmatics have increased vascularity compared to the other groups, which correlates positively with the concentrations of angiogenic factors in sputum. Interestingly, we demonstrated that increased bronchial vascularity correlates positively with the number of subepithelial IL-17A+ cells. However IL-17A had no direct effect on HMVEC-L function but it enhanced endothelial tube formation and cell migration through the production of angiogenic factors by NHBE and ASMC. CONCLUSIONS & CLINICAL RELEVANCE: Our results shed light on the role of IL-17A in vascular remodelling, most likely through stimulating the synthesis of other angiogenic factors. Knowledge of these pathways may aid in the identification of new therapeutic targets. PMID- 29337380 TI - Recent Advances in Micro-/Nanostructured Metal-Organic Frameworks towards Photonic and Electronic Applications. AB - Micro- and nanometer-sized metal-organic frameworks (MOFs) materials have attracted great attention due to their unique properties and various potential applications in photonics, electronics, high-density storage, chemo-, and biosensors. The study of these materials supplies insight into how the crystal structure, molecular components, and micro-/nanoscale effects can influence the performance of inorganic-organic hybrid materials. In this Minireview article, we introduce recent breakthroughs in the controlled synthesis of MOF micro /nanomaterials with specific structures and compositions, the tunable photonic and electronic properties of which would provide a novel platform for multifunctional applications. Firstly, the design strategies for MOFs based on self-assembly and crystal engineering principles are introduced. Attention is then focused on the methods of fabrication of low-dimensional MOF micro /nanostructures. Their new applications including two-photon excited fluorescence, multi-photon pumped lasing, optical waveguides, nonlinear optical (NLO), and field-effect transistors are also outlined. Finally, we briefly discuss perspectives on the further development of these hybrid crystalline micro /nanomaterials. PMID- 29337381 TI - A Combined Photochemical and Multicomponent Reaction Approach to Precision Oligomers. AB - We introduce the convergent synthesis of linear monodisperse sequence-defined oligomers through a unique approach, combining the Passerini three-component reaction (P-3CR) and a Diels-Alder (DA) reaction based on photocaged dienes. A set of oligomers is prepared resting on a Passerini linker unit carrying an isocyano group for chain extension by P-3CR and a maleimide moiety for photoenol conjugation enabling a modular approach for chain growth. Monodisperse oligomers are accessible in a stepwise fashion by switching between both reaction types. Employing sebacic acid as a core unit allows the synthesis of a library of symmetric sequence-defined oligomers. The oligomers consist of alternating P-3CR and photoblocks with molecular weights up to 3532.16 g mol-1 , demonstrating the successful switching from P-3CR to photoenol conjugation. In-depth characterization was carried out including size-exclusion chromatography (SEC), high-resolution electrospray ionization mass spectrometry (ESI-MS) and NMR spectroscopy, evidencing the monodisperse nature of the precision oligomers. PMID- 29337382 TI - Frailty in patients with acute myeloid leukaemia, conceptual misapprehension of chronological age. AB - In haematology practice, patients with acute myeloid leukaemia (AML) are generally assessed for frailty only if they are older and not able to tolerate intensive and remission targeted treatments. We aimed to focus on frailty in patients with AML, in all ages and aimed to evaluate its role and practicality in daily routine. Data of patients diagnosed and treated for AML between 2006 and 2016 are recorded and assessed for their survival predictivity. One hundred and ninety-seven patients were <65 years of age and 175 were >=65. Majority of the younger patients showed ECOG 2 performance (119, 60.4%). Combined with ECOG scale, G8 scale showed survival predictivity in younger patients as well as older patients. Nutritional status showed a strong predictivity in younger patients while remained insignificant in older patients. VES13 scale showed similar predictivity strength for survival in both age groups (p = .001). Young AML patients should be thoroughly evaluated as older patients. ECOG performance evaluation should be supported with further scales. Young patients with lower ECOG scores may be regarded as vulnerable with scales embracing dimensions such as nutrition, perception of disease, depression and cognition. Nutrition should be within the main goals of intensive treatment and is related with survival. PMID- 29337383 TI - Pregnancy in Diabetes: challenges and opportunities for improving pregnancy outcomes. AB - Our aim was to review the data from the National Pregnancy in Diabetes (NPID) audit, and to identify the challenges and opportunities for improving pregnancy outcomes in women with diabetes. We reviewed three years of NPID data and relevant diabetes and obstetric literature, and found that there has been little change in pregnancy preparation or outcomes over the past 3 years, with substantial clinic-to clinic variations in care. Women with Type 2 diabetes remain less likely to take 5 mg preconception folic acid (22.8% vs. 41.8%; P < 0.05), and more likely to take potentially harmful medications (statin and/or ACE inhibitor 13.0% vs. 1.8%; P < 0.05) than women with Type 1 diabetes. However, women with Type 1 diabetes are less likely to achieve the recommended glucose control target of HbA1c < 48 mmol/mol (6.5%) (14.9% vs. 38.1%; P < 0.05). The following opportunities for improvement were identified. First, the need to integrate reproductive health into the diabetes care plans of all women with diabetes aged 15-50 years. Second, to develop more innovative approaches to improve uptake of pre-pregnancy care in women with Type 2 diabetes in primary care settings. Third, to integrate insulin pump, continuous glucose monitoring and automated insulin delivery technologies into the pre-pregnancy and antenatal care of women with Type 1 diabetes. Fourth, to improve postnatal care with personalized approaches targeting women with previous pregnancy loss, congenital anomaly and perinatal mortality. A nationwide commitment to delivering integrated reproductive and diabetes healthcare interventions is needed to improve the health outcomes of women with diabetes. PMID- 29337384 TI - Dual-hormone artificial pancreas: benefits and limitations compared with single hormone systems. AB - Technological advances have made the artificial pancreas a reality. This has the potential to improve the lives of individuals with Type 1 diabetes by reducing the risk of hypoglycaemia, achieving better overall glucose control, and enhancing quality of life. Both single-hormone (insulin-only) and dual-hormone (insulin and glucagon) systems have been developed; however, a focused review of the relative benefits of each artificial pancreas system is needed. We reviewed studies that directly compared single- and dual-hormone systems to evaluate the efficacy of each system for preventing hypoglycaemia and maintaining glycaemic control, as well as their utility in specific situations including during exercise, overnight and during the prandial period. We observed additional benefits with the dual-hormone artificial pancreas for reducing the risk of hypoglycaemic events overall and during exercise over the study duration. The single-hormone artificial pancreas was sufficient for maintenance of euglycaemia in the overnight period and for preventing late-onset post-exercise hypoglycaemia. Future comparative studies of longer duration are required to determine whether one system is superior for improving mean glucose control, eliminating severe hypoglycaemia, or improving quality of life. PMID- 29337385 TI - Orientation-Dependent Strain Relaxation and Chemical Functionalization of Graphene on a Cu(111) Foil. AB - Epitaxial graphene grown on single crystal Cu(111) foils by chemical vapor deposition is found to be free of wrinkles and under biaxial compressive strain. The compressive strain in the epitaxial regions (0.25-0.40%) is higher than regions where the graphene is not epitaxial with the underlying surface (0.20 0.25%). This orientation-dependent strain relaxation is through the loss of local adhesion and the generation of graphene wrinkles. Density functional theory calculations suggest a large frictional force between the epitaxial graphene and the Cu(111) substrate, and this is therefore an energy barrier to the formation of wrinkles in the graphene. Enhanced chemical reactivity is found in epitaxial graphene on Cu(111) foils as compared to graphene on polycrystalline Cu foils for certain chemical reactions. A higher compressive strain possibly favors lowering the formation energy and/or the energy gap between the initial and transition states, either of which can lead to an increase in chemical reactivity. PMID- 29337386 TI - Synthesis and X-Ray Crystallographic Characterisation of Frustum-Shaped Ligated [Cu18 H16 (DPPE)6 ]2+ and [Cu16 H14 (DPPA)6 ]2+ Nanoclusters and Studies on Their H2 Evolution Reactions. AB - We report new structural motifs for Cu nanoclusters that conceptually represent seed crystals for large face-centred cubic (FCC) crystal growth. Kinetically controlled syntheses, high resolution mass spectrometry experiments for determination of the dication formulae and crystallographic characterisation were carried out for [Cu18 H16 (DPPE)6 ][BF4 ][Cl] (DPPE=bis(diphenylphosphino)ethane) and [Cu16 H14 (DPPA)6 ][(BF4 )2 ] (DPPA=bis(diphenylphosphino)amine) polyhydrido nanoclusters, which feature the unprecedented bifrustum and frustum metal-core architecture in metal nanoclusters. The Cu18 nanocluster contains two Cu9 frustum cupolae and the Cu16 nanocluster has one Cu9 frustum cupola and a Cu7 distorted hexagonal-shape base. Gas-phase experiments revealed that both Cu18 H16 and Cu16 H14 cores can spontaneously release H2 upon removal of one bisphosphine capping ligand. PMID- 29337388 TI - Reactions of an Aluminium/Phosphorus Frustrated Lewis Pair (FLP) with alpha,beta Unsaturated Carbonyl Compounds: FLPs as Efficient Two-Electron Reductants with the Formation of Enolates, a cis-Enediolate, and an Allene. AB - The Al/P-based frustrated Lewis pair (FLP) Mes2 P-C(AltBu)2 =C(H)Ph (1; Mes=mesityl) reacted as an efficient two-electron reductant with benzil to afford a cis-enediolate that was coordinated to the FLP through P-O and Al-O bonds and the formation of a seven-membered heterocycle (2). The phosphorus atom is oxidised from +III to +V. Similar heterocycles (3 a to 3 f) were formed if 1 was treated with various enones (acrolein, acrylate, acrylamide). The resulting enolates are bound to the FLP through P-C and Al-O bonds. Cyclopropenone gave an adduct (4) with the C=O bond coordinated by P and Al. Ynones gave a fascinating variety of different structures. 1,3-Diphenylprop-2-yn-1-one afforded a remarkable allene-type moiety with two cumulated C=C bonds (5); 3-hexyn-2-one yielded a ligand with two conjugated C=C bonds by C-H bond activation at the carbonyl methyl group (7); and 4-(trimethylsilyl)-3-butyn-2-one reacted by C-H bond cleavage, formation of an enolate group with a terminal C=C bond, and shift of the proton to the P atom (8). The C=C bond was not affected. Allene compound 5 rearranged at elevated temperature and in daylight through the formation of a tricyclic compound by C-H bond activation and C-C bond formation. DFT calculations on this unusual rearrangement suggest insertion of the central allene C atom into the C-H bond of a methyl group and the intermediate formation of a C3 ring. PMID- 29337387 TI - Systematic review of predictive risk models for adverse drug events in hospitalized patients. AB - AIM: An emerging approach to reducing hospital adverse drug events is the use of predictive risk scores. The aim of this systematic review was to critically appraise models developed for predicting adverse drug event risk in inpatients. METHODS: Embase, PubMed, CINAHL and Scopus databases were used to identify studies of predictive risk models for hospitalized adult inpatients. Studies had to have used multivariable logistic regression for model development, resulting in a score or rule with two or more variables, to predict the likelihood of inpatient adverse drug events. The Checklist for the critical Appraisal and data extraction for systematic Reviews of prediction Modelling Studies (CHARMS) was used to critically appraise eligible studies. RESULTS: Eleven studies met the inclusion criteria and were included in the review. Ten described the development of a new model, whilst one study revalidated and updated an existing score. Studies used different definitions for outcome but were synonymous with or closely related to adverse drug events. Four studies undertook external validation, five internally validated and two studies did not validate their model. No studies evaluated impact of risk scores on patient outcomes. CONCLUSION: Adverse drug event risk prediction is a complex endeavour but could help to improve patient safety and hospital resource management. Studies in this review had some limitations in their methods for model development, reporting and validation. Two studies, the BADRI and Trivalle's risk scores, used better model development and validation methods and reported reasonable performance, and so could be considered for further research. PMID- 29337389 TI - Thiazole Imide-Based All-Acceptor Homopolymer: Achieving High-Performance Unipolar Electron Transport in Organic Thin-Film Transistors. AB - High-performance unipolar n-type polymer semiconductors are critical for advancing the field of organic electronics, which relies on the design and synthesis of new electron-deficient building blocks with good solubilizing capability, favorable geometry, and optimized electrical properties. Herein, two novel imide-functionalized thiazoles, 5,5'-bithiazole-4,4'-dicarboxyimide (BTzI) and 2,2'-bithiazolothienyl-4,4',10,10'-tetracarboxydiimide (DTzTI), are successfully synthesized. Single crystal analysis and physicochemical study reveal that DTzTI is an excellent building block for constructing all-acceptor homopolymers, and the resulting polymer poly(2,2'-bithiazolothienyl-4,4',10,10' tetracarboxydiimide) (PDTzTI) exhibits unipolar n-type transport with a remarkable electron mobility (MUe ) of 1.61 cm2 V-1 s-1 , low off-currents (Ioff ) of 10-10 -10-11 A, and substantial current on/off ratios (Ion /Ioff ) of 107 108 in organic thin-film transistors. The all-acceptor homopolymer shows distinctive advantages over prevailing n-type donor-acceptor copolymers, which suffer from ambipolar transport with high Ioff s > 10-8 A and small Ion /Ioff s < 105 . The results demonstrate that the all-acceptor approach is superior to the donor-acceptor one, which results in unipolar electron transport with more ideal transistor performance characteristics. PMID- 29337390 TI - Salt-dependent aquagenic urticaria in children: Report of two cases. PMID- 29337392 TI - Oral health-related concerns, behavior, and communication with health care providers of patients with breast cancer: impact of different treatments. AB - AIM: The objectives are to compare responses of breast cancer (BCa) treatment groups (chemotherapy, tamoxifen, and aromatase inhibitors (AIs) to each other and a control regarding (a) subjective oral health, (b) oral health-related behaviors, (c) oral health-related concerns, and (d) communication with health care providers. METHODS: Survey data were collected from 140 postmenopausal BCa patients and 41 healthy postmenopausal control respondents. RESULTS: BCa patients reported on average more frequent mouth sores/mucositis (5-point scale with 1 = never: 1.63 vs. 1.14; p < .01), glossadynia (1.60 vs. 1.07; p < .01), xerostomia (2.48 vs. 1.40; p < .01), and dysgeusia (2.10 vs. 1.46; p < .01) than the control respondents. Patients undergoing chemotherapy were more aware that cancer treatment can affect their oral health than patients on tamoxifen/AI (93% vs. 55%/56%; p < .001). BCa patients reported being more frequently informed by oncologists about oral health-related effects of cancer treatment than by dentists. Oncologists/nurses were more likely to communicate about oral health related treatment effects with patients undergoing chemotherapy than patients on tamoxifen or AIs. Few BCa patients perceived dentists as knowledgeable about cancer treatment-related oral concerns and trusted them less than oncologists. CONCLUSIONS: BCa treatments impact oral health. Low percentages of BCa patients had received specific information about impacts of BCa treatments on oral health from their dentists. PMID- 29337391 TI - Time-dependent distinct roles of Toll-like receptor 4 in a house dust mite induced asthma mouse model. AB - House dust mites (HDMs) are a common source of allergens that trigger both allergen-specific and innate immune responses in humans. Here, we examined the effect of allergen concentration and the involvement of Toll-like receptor 4 (TLR4) in the process of sensitization to house dust mite allergens in an HDM extract-induced asthma mouse model. Intranasal administration of HDM extract induced an immunoglobulin E response and eosinophilic inflammation in a dose dependent manner from 2.5 to 30 MUg/dose. In TLR4-knockout mice, the infiltration of eosinophils and neutrophils into the lung was decreased compared with that in wild-type mice in the early phase of inflammation (total of three doses). However, in the late phase of inflammation (total of seven doses), eosinophil infiltration was significantly greater in TLR4-knockout mice than in wild-type mice. This suggests that the roles of TLR4 signaling are different between the early phase and the later phase of HDM allergen-induced inflammation. Thus, innate immune response through TLR4 regulated the response to HDM allergens, and the regulation was altered during the phase of inflammation. PMID- 29337393 TI - Provision of information on dental implant treatment: Patients' thoughts and experiences. AB - OBJECTIVES: To explore patients' thoughts and perceptions of information provision regarding dental implant treatment. METHODS: This generic qualitative study involved 38 semi-structured face-to-face and telephone interviews with 34 participants, who were at different stages of dental implant treatment. The interviews were transcribed verbatim. The data collection and coding process followed the principles of qualitative thematic analysis. RESULTS: Clinical sources of information were generally trusted by patients; however, patients clearly lacked information relative to their own specific situation, concerns and preferences, and this may lead to patients' reliance on other general sources of information. Crucial information on the long-term prosthesis needs was requested by patients at all treatment stages. Issues concerning the longevity and functional capability of the implant restoration and the long-term maintenance including optimisation of hygiene practice were questioned by patients and required greater explanation. CONCLUSION: With growing patient interest in implants for replacement of missing teeth, complete and accurate knowledge and understanding of implants should be established with patients. This should be undertaken with more reliance on reliable clinically based sources of implant information. PMID- 29337394 TI - 3D Printing of Materials with Tunable Failure via Bioinspired Mechanical Gradients. AB - Mechanical gradients are useful to reduce strain mismatches in heterogeneous materials and thus prevent premature failure of devices in a wide range of applications. While complex graded designs are a hallmark of biological materials, gradients in manmade materials are often limited to 1D profiles due to the lack of adequate fabrication tools. Here, a multimaterial 3D-printing platform is developed to fabricate elastomer gradients spanning three orders of magnitude in elastic modulus and used to investigate the role of various bioinspired gradient designs on the local and global mechanical behavior of synthetic materials. The digital image correlation data and finite element modeling indicate that gradients can be effectively used to manipulate the stress state and thus circumvent the weakening effect of defect-rich interfaces or program the failure behavior of heterogeneous materials. Implementing this concept in materials with bioinspired designs can potentially lead to defect tolerant structures and to materials whose tunable failure facilitates repair of biomedical implants, stretchable electronics, or soft robotics. PMID- 29337395 TI - Testosterone Suppression with Luteinizing Hormone-Releasing Hormone (LHRH) Agonists in Patients Receiving Radiotherapy for Prostate Cancer. AB - OBJECTIVES: To characterize the probability of testosterone escape during a course of radiotherapy and androgen deprivation (ADT) in patients with prostate cancer, and examine predictors of testosterone escape, the prostate specific antigen (PSA) levels during testosterone escape, and the impact of testosterone escape on outcome. PATIENTS AND METHODS: To participate in the database review, necessary data included: (i) type of luteinizing hormone-releasing hormone agonist (LHRHa) administered, date of initiation, and date of cessation or duration of therapy, (ii) radiotherapy information (start date and dose) with at least 6 months of follow-up after radiotherapy, (iii) radiotherapy to the prostate or prostate bed, and (iv) at least one serum testosterone and PSA measurement. RESULTS: Five hundred sixty patients in the database were identified as being treated with radiotherapy and ADT. Three hundred seventy-five patients had at least one measurement of testosterone and PSA, and the type of LHRHa used could be determined in 361 patients. Median follow-up of patients still living was 4.7 years. The median number of testosterone measurements per patient was six. The incidence of testosterone escape per patient course of treatment was buserelin, 9.3%; goserelin, 10.5%; intramuscular leuprolide, 11.5%; leuprolide subcutaneous, 23.9%; and triptorelin, 6.7% (p = 0.02). There was no difference in either biochemical failure-free survival or overall survival in patients stratified by testosterone escape. The modal PSA level during a testosterone escape was an undetectable PSA. CONCLUSIONS: An undetectable PSA does not rule out the presence of higher than desired levels of testosterone during ADT. In this cohort of patients, there appears to be no impact of testosterone escape on either biochemical relapse-free survival or overall survival. PMID- 29337396 TI - Aging and hypertension decrease endothelial NO-related dilating function and gamma-glutamyl transferase activity but not S-nitrosoglutathione-induced aortic vasodilation. AB - S-nitrosoglutathione (GSNO), which is involved in the transport and the storage of NO, induces vasorelaxation. It requires gamma-glutamyl transferase (GGT), an enzyme present on the endothelium, to transfer NO into the cell. We evaluated whether aging and hypertension, which induce NO-related dilating dysfunction, are associated with decreased vascular GGT activity and modify the vasorelaxant effect of GSNO. Thoracic aortic rings isolated from male spontaneous hypertensive rats (SHR) and Wistar-Kyoto rats (WKY) aged 20-22 (adult) or 57-60 weeks (mature) were preconstricted with phenylephrine, then submitted to concentration vasorelaxant response curves (maximal response: Emax ; pD2 ) to GSNO and carbachol (the latter to measure NO-related dilating function). GGT activity was measured using chromogenic substrate. Both aging and hypertension lowered Emax values for carbachol (Emax -8% in adult SHR, -42% in mature SHR vs. age-matched WKY, page and phypertension < 0.05) demonstrating NO-related dilating dysfunction. Aortic GGT activity also decreased with aging and hypertension (-22% in adult and -75%, reaching 3 nmol/min/g of tissue, in mature SHR vs. 12 in age matched WKY and 23 in adult WKY, page and phypertension < 0.05). The pD2 values of GSNO were similar in mature SHR and WKY but higher in adult SHR (pinteraction < 0.05). Aging in hypertensive rats decreased NO-related vasorelaxant function and vascular GGT activity, but did not lower the vasorelaxant response to GSNO. This opens perspectives for GSNO-based therapeutics restoring nitric oxide bioavailability and vascular protection in a context of endothelial dysfunction. PMID- 29337397 TI - 2D PdAg Alloy Nanodendrites for Enhanced Ethanol Electroxidation. AB - The development of highly active and stable electrocatalysts for ethanol electroxidation is of decisive importance to the successful commercialization of direct ethanol fuel cells. Despite great efforts invested over the past decade, their progress has been notably slower than expected. In this work, the facile solution synthesis of 2D PdAg alloy nanodendrites as a high-performance electrocatalyst is reported for ethanol electroxidation. The reaction is carried out via the coreduction of Pd and Ag precursors in aqueous solution with the presence of octadecyltrimethylammonium chloride as the structural directing agent. Final products feature small thickness (5-7 nm) and random in-plane branching with enlarged surface areas and abundant undercoordinated sites. They exhibit enhanced electrocatalytic activity (large specific current ~2600 mA mgPd 1) and excellent operation stability (as revealed from both the cycling and chronoamperometric tests) for ethanol electroxidation. Control experiments show that the improvement comes from the combined electronic and structural effects. PMID- 29337398 TI - Exploring knowledge, attitudes and experience of genitourinary symptoms in women with early breast cancer on adjuvant endocrine therapy. AB - Clinical trials of adjuvant endocrine therapy in women with early breast cancer have consistently reported that genitourinary symptoms are common. However, little is known about women's experiences of genitourinary symptoms, their views about the symptoms and how they impact on their lives. The aim of this study was to explore knowledge, attitudes and experiences of genitourinary symptoms among women receiving adjuvant endocrine therapy for early breast cancer. Thirty-two semi-structured interviews were conducted and subjected to a rigorous qualitative analysis. Genitourinary symptoms were commonly reported to negatively impact on personal, social and physical activities, were often attributed to anxiety and stress and were a source of embarrassment. Women also commented on the limited information available or provided regarding the potential genitourinary adverse effects of adjuvant endocrine therapy. There was a general lack of awareness that their symptoms could be associated with or exacerbated by adjuvant endocrine therapy. Women indicated a preference to receive information and advice about potential management options from either their general practitioner or specialist. These findings underscore the importance of improving communication and increasing awareness among both clinicians and patients about the potential impact of adjuvant endocrine therapy on genitourinary symptoms. PMID- 29337399 TI - Impact of pregnancy on psychoactive substance use among women with substance use disorders recruited in addiction specialized care centers in France. AB - Pregnancy can be a motivation for decrease in drug abusing but may also represent a period of high vulnerability for relapse. We aimed to assess psychoactive substance use among women with substance use disorders followed in addiction care centers in France. We analyzed data from women aged 15-44 years included in the 'Observation of illegal drugs and misuse of psychotropic medication (OPPIDUM) survey', an annual cross-sectional survey collecting details on psychoactive substances used. Characteristics of women included in 2005-2012 yearly surveys were compared depending on their pregnant or not pregnant status. Factors, including pregnancy, associated with illicit substance use and medication misuse were investigated through logistic regression. The study included 518 pregnant and 6345 nonpregnant women; 85.3% pregnant women were on opioid maintenance therapy (OMT) (vs. 77.1% of nonpregnant). Pregnancy was associated with lower illicit substance use (adjusted OR 0.71 [0.58-0.88]) and with lower medication misuse (0.66 [0.49-0.89]), whereas financial insecurity and living as a couple were associated with increased risk. Raising children was significantly associated with less risk of substance use. Each substance taken separately, the part of women using illicit substance or misusing medication did not differ depending on whether they were pregnant or not, except for heroin (24.5% in pregnant vs. 17.9% nonpregnant; <0.001). This nationwide study provides new insights into psychoactive substance use in a large mixed population of women with drug use disorders. Results outline the challenge of preventing drug use and initiating care strategies with a specific approach on socio-economic environment. PMID- 29337400 TI - Immunization in end stage renal disease: The perception of waiting list patients. AB - BACKGROUND: The number of patients with chronic kidney disease is increasing worldwide, as well as the number of patients in kidney transplant waiting lists. In order to prevent infections related to immunosuppressive therapy, immunization guidelines for CKD patients before transplantation have been proposed. The aim of the present study was to evaluate adherence to immunization in a cohort of CKD patients in transplant waiting list and their renal replacement therapy clinics. METHODS: CKD patients older than 18 years old, receiving renal replacement therapy longer than 12 months and included in kidney transplant waiting list at University of Campinas (Unicamp) were enrolled. RESULTS: From February 2014 to December 2015, 105 patients fulfilled the inclusion criteria. Complete hepatitis B vaccination was observed in 73% and influenza vaccine in 67%. None of the other vaccine protocols reached 50% of coverage. Patients receiving immunization at primary health units presented higher coverage for diphtheria, tetanus (dT), measles, mumps, rubella (MMR), and hepatitis B vaccines, while patients immunized at renal replacement therapy clinics showed higher prevalence of pneumococcus (pneumo23). CONCLUSION: The low rates of immunization could reflect the RRT's clinics knowledge about the vaccines guidelines and its application on daily care. We suggest an integration between transplant center and RRT clinics, through lectures, periodic checking of vaccination cards, and easy to follow guidelines in order to provide a better vaccine coverage and to obtain higher immunization rates. PMID- 29337402 TI - Effect of length of dental resident clinical rotations on patient behavior. AB - AIM: The purpose of this retrospective chart review study was to determine if the length of residents' comprehensive dental care rotations in a general practice residency affected late cancellations, broken appointments, completion of treatment, timeliness of recall visits, emergency visits, and the need for redo of restorations and prostheses. METHODS: Patients who presented for comprehensive care from 2010 to 2013, during which residents had 3- to 4-month dental clinic rotations, comprised Group 1, and patients who presented for comprehensive care from 2013 to 2016, during which residents had 11-month dental clinic rotations, comprised Group 2. Subjects were excluded if they only presented for emergency care, they had only one visit, or their care was delivered in both time periods. There were 105 patients in Group 1 and 55 patients in Group 2. RESULTS: The statistically significant results were that Group 1 patients had more late cancellations and broken appointments and failed to reach recall status more often than Group 2 patients, and that Group 1 patients had fewer emergency visits. CONCLUSION: Within the limitations of this retrospective study, the results suggest that short block rotations have an adverse effect on resident experience and outcomes of patient care in a hospital outpatient setting. PMID- 29337401 TI - Rhabdomyolysis after co-administration of a statin and fusidic acid: an analysis of the literature and of the WHO database of adverse drug reactions. AB - Following a severe case of rhabdomyolysis in our University Hospital after a co administration of atorvastatin and fusidic acid, we describe this interaction as this combination is not clearly contraindicated in some countries, particularly for long-term treatment by fusidic acid. All cases of rhabdomyolysis during a co administration of a statin and fusidic acid were identified in the literature and in the World and Health Organization database, VigiBase(r) . In the literature, 29 cases of rhabdomyolysis were identified; mean age was 66 years, median duration of co-administration before rhabdomyolysis occurrence was 21 days, 28% of cases were fatal. In the VigiBase(r) , 182 cases were retrieved; mean age was 68 years, median duration of co-administration before rhabdomyolysis was 31 days and 24% of cases were fatal. Owing to the high fatality associated with this co administration and the long duration of treatment before rhabdomyolysis occurrence, fusidic acid should be used if there is no appropriate alternative, as long as statin therapy is interrupted for the duration of fusidic acid therapy, and perhaps a week longer. Rarely will interruption of this sort have adverse consequences for the patient. PMID- 29337404 TI - Mass trapping designs for organic control of the Japanese beetle, Popillia japonica (Coleoptera: Scarabaeidae). AB - BACKGROUND: In some regions of North America, damage caused by the Japanese beetle, Popillia japonica, has been increasing as beetle populations continue to become established and expand. This poses a pest management challenge for crop farmers, in particular organic producers. From 2014 to 2016 we evaluated the ability of novel mass trapping systems to capture P. japonica in elderberry and blueberry orchards in Missouri, USA. RESULTS: Across a 3-year period in two locations, the mass trapping systems collected 10.3 million P. japonica adults while season-long adult densities on crop plants were comparatively low (elderberry: 0.5-3.7 per plant; blueberry: 0.01-0.07 per plant). Damage by P. japonica averaged 6.8% per plant in elderberry and 0.12% in blueberry. In 2015 and 2016, large-capacity bins with increased ventilation captured similar beetle numbers as did 1.2-m-long mesh socks (single design used in 2014), and these two trap designs outperformed non-ventilated bins. CONCLUSION: The mass trapping designs captured high numbers of adult P. japonica, while comparatively few adults and little damage to the foliage were recorded on plants. Mass trapping may provide effective alternative management options for P. japonica with less or no insecticides applied to the crop. (c) 2018 Society of Chemical Industry. PMID- 29337405 TI - Effects of transcutaneous electrical nerve stimulation on pain intensity during application of carboxytherapy in patients with cellulite: A randomized placebo controlled trial. AB - BACKGROUND: Carboxytherapy may generate local pain that is considered the main limiting factor in clinical practice. Transcutaneous electric nerve stimulation (TENS) is widely used in the control of acute pain; however, the effect of TENS on pain relief during carboxytherapy has not been studied to date. AIMS: To assess the effect of TENS on pain intensity during carboxytherapy in patients with cellulite in the gluteal region. PATIENTS/METHODS: This randomized clinical trial was conducted with 84 patients, 18-44 years of age, who had moderate cellulite in the gluteal region, according to Cellulite Severity Scale, but never received carboxytherapy. Patients were randomized into 3 groups: active TENS, placebo TENS, and control group. For the intervention, skin depressions with cellulite were outlined, and the gluteal area to be treated was defined. The subcutaneous injection of CO2 was performed using 0.30 * 13 mm-needles at a 45 degrees angle, with a controlled flow rate of 100 mL/min maintained for 1 minute at each puncture site. The parameters for TENS were as follows: frequency of 100 Hz and pulse duration of 200 MUs; TENS intensity was adjusted until the patient reported strong paresthesia. The visual numeric pain rating scale was used to assess pain intensity after each puncture. RESULTS: The active TENS group reported lower pain intensity compared to the placebo TENS (P < .0001) and control (P < .0001) groups. CONCLUSIONS: Transcutaneous electric nerve stimulation (TENS) was effective in reducing pain intensity during carboxytherapy in patients with cellulite in the gluteal region. PMID- 29337406 TI - Validation of flow cytometric analysis of platelet function in patients with a suspected platelet function defect. AB - : Essentials The diagnosis of mild platelet function disorders (PFDs) is challenging. Validation of flow cytometric testing in patients with suspected PFDs is required. Flow cytometry has added value to light transmission aggregometry (LTA) in diagnosis of PFDs. There is fair agreement in diagnosing PFDs between LTA and flow cytometry. SUMMARY: Background Light transmission aggregometry (LTA) is the most commonly used test for the diagnosis of platelet function disorders (PFDs), but has moderate sensitivity for mild PFDs. Flow cytometry has been recommended for additional diagnostics of PFDs but is not yet standardized as a diagnostic test. We developed a standardized protocol for flow cytometric analysis of platelet function that measures fibrinogen binding and P selectin expression as platelet activation markers in response to agonist stimulation. Objectives To determine the additional value of flow cytometric platelet function testing to standard LTA screening in a cross-sectional cohort of patients with a suspected PFD. Methods Platelet function was assessed with flow cytometry and LTA in 107 patients suspected of a PFD in whom von Willebrand disease and coagulation factor deficiencies were excluded. Both tests were compared in terms of agreement and discriminative ability for diagnosing patients with PFDs. Results Out of 107 patients, 51 patients had an elevated bleeding score; 62.7% of the patients had abnormal platelet function measured with flow cytometry and 54.2% of the patients were abnormal based on LTA. There was fair agreement between LTA and flow cytometry (kappa = 0.32). The discriminative ability of flow cytometric analysis in patients with an elevated bleeding score was good (AUC 0.82, 0.74-0.90), but moderate for LTA (AUC 0.70, 0.60-0.80). Both tests combined had a better discriminative ability (AUC 0.87, 0.80-0.94). Conclusion Flow cytometric analysis of platelet function has added value in diagnostics of PFDs in patients with unexplained bleeding tendency. PMID- 29337407 TI - Insufficient sleep syndrome: An unrecognized but important clinical entity. AB - BACKGROUND: A sleep clinic for adults and children was established in the Tokyo Bay Urayasu Ichikawa Medical Centre, in August 2012. Given that few sleep clinics are available in Japan specifically for children, this clinic provides the opportunity to provide data on child patients with sleep problems. METHODS: Records of patients who visited the sleep clinic at the Tokyo Bay Urayasu Ichikawa Medical Centre aged <=20 years at the first visit were retrospectively examined, along with the initial and final diagnoses. RESULTS: Of 2,157 patients who visited the sleep clinic at Tokyo Bay Urayasu Ichikawa Medical Centre between August 2012 and March 2017, 181 were <=20 years old. In these 181 patients, the most frequent final diagnosis was insufficient sleep syndrome (ISS), n = 56, followed by circadian rhythm sleep-wake disorder, n = 28; insomnia, n = 28; and sleep-related movement disorder, n = 15. CONCLUSIONS: Insufficient sleep produces various brain dysfunctions in both adults and children, and is associated with behavioral, cognitive and physical problems, as well as with atypical early development. Insufficient sleep has also been reported to cause obesity. Insufficient sleep-induced obesity is often associated with the occurrence of metabolic syndrome. More effort is needed to ensure that children are receiving sufficient sleep. PMID- 29337408 TI - Maternally expressed miR-379/miR-544 cluster is dispensable for testicular development and spermatogenesis in mice. PMID- 29337409 TI - Engineering of 'Purple Embryo Maize' with a multigene expression system derived from a bidirectional promoter and self-cleaving 2A peptides. PMID- 29337410 TI - Transcriptomic insight into pathogenicity-associated factors of Conidiobolus obscurus, an obligate aphid-pathogenic fungus belonging to Entomopthoromycota. AB - BACKGROUND: Conidiobolus obscurus is a widespread fungal entomopathogen with aphid biocontrol potential. This study focused on a de novo transcriptomic analysis of C. obscurus. RESULTS: A number of pathogenicity-associated factors were annotated for the first time from the assembled 17 231 fungal unigenes, including those encoding subtilisin-like proteolytic enzymes (Pr1s), trypsin-like proteases, metalloproteases, carboxypeptidases and endochitinases. Many of these genes were transcriptionally up-regulated by at least twofold in mycotized cadavers compared with the in vitro fungal cultures. The resultant transcriptomic database was validated by the transcript levels of three selected pathogenicity related genes quantified from different in vivo and in vitro material in real time quantitative polymerase chain reaction (PCR). The involvement of multiple Pr1 proteases in the first stage of fungal infection was also suggested. Interestingly, a unique cytolytic (Cyt)-like delta-endotoxin gene was highly expressed in both mycotized cadavers and fungal cultures, and was more or less distinct from its homologues in bacteria and other fungi. CONCLUSION: Our findings provide the first global insight into various pathogenicity-related genes in this obligate aphid pathogen and may help to develop novel biocontrol strategy against aphid pests. (c) 2018 Society of Chemical Industry. PMID- 29337411 TI - The Fourth Wave of Biocatalysis Emerges- The 13 th International Symposium on Biocatalysis and Biotransformations. AB - Ride the wave! Biocatalysis uses nature's catalysts, enzymes and whole cell systems, for synthetic purposes. In a biotransformation, the biocatalyst transforms a well-defined substrate to the desired product, in contrast to the fermentation process, which produces the desired product from a complex mixture of nutrients. Biocatalysis has reached an industrially established level through several waves of technological evolution; participants of the BioTrans 2017 conference in Budapest could witness the newest wave of this technology. PMID- 29337412 TI - Metallic Nanodot Patterns with Unique Symmetries Templated from ABC Triblock Terpolymer Networks. AB - Nanotemplates derived from the self-assembly of AB-type block copolymers provide an elegant route to achieve well-defined metallic dot arrays, even if the variety of pattern symmetries is restricted due to the limited number of structures offered by microphase separated diblock copolymers. A strategy that relies on the use of complex network structures accessible through the self-assembly of linear ABC-type terpolymers is presented for the formation of metallic nanodots arrays with "outside-the-box" symmetries. Patterned templates formed by the cubic Q214 and orthorhombic O70 network structures are used as excellent platforms to build well-ordered gold nanodot arrays with unique p3m1 and p2 symmetries, respectively. A simple yet efficient blending strategy is used to tune the critical dimensions of the p3m1 pattern while laterally ordered gold nanodot arrays are also demonstrated through a directed self-assembly approach. Such highly ordered gold nanodots with tunable particle dimensions and array periods, enabling the control of their plasmonic responses, are attractive probes for biological imaging. PMID- 29337413 TI - Participation of relatives in the care of cancer patients in hospital-A scoping review. AB - The purpose of the review was to describe what kind of research has been conducted concerning relatives' participation in the care of cancer patients in hospital and how relatives have participated in the care. Data (n = 9) were identified through a manual search and by searching the electronic databases (n = 8) Cinahl, PubMed and Cochrane Library and analysed with deductive content analysis. According to the review, participation in the concrete care appeared as taking care of comprehensive care and the quality of care, helping with daily activities and helping the healthcare professionals. Emotional support appeared as protecting, supporting and visiting the patient and discussing with the patient. Participation in decision-making appeared as acting as an advocate for the patient, participating in the discussion concerning the decision-making and participating in the discussion concerning the decisions of end of life. According to the review, research concerning this topic seems to be rare. While hospital periods are shortening and homecare is increasing, the role of relatives as a supporter of the cancer patient is becoming even stronger. In the future, more research should be conducted how the patients experience participation and what are their wishes. PMID- 29337414 TI - Proliferative leukoplakia: Proposed new clinical diagnostic criteria. AB - OBJECTIVE: We aimed to characterize proliferative verrucous leukoplakia (PVL) from a clinical and histopathological standpoint and suggest an updated classification. SUBJECTS AND METHODS: Records of patients seen at three oral medicine centers with a clinical diagnosis of PVL were reviewed for clinical and histopathological features and malignant transformation (MT). RESULTS: There were 42 patients (median age: 69 years [range: 36-88]; 35 females). 12.2% were current smokers. Family history of cancer was present in 43.7% of patients. Partial demarcation of lesion margins was present in 31.3% of lesions, followed by verrucous (27.5%), smooth (22.7%) erythematous (22.3%), and fissured (18.3%) appearance. Large and contiguous and multisite and non-contiguous lesions comprised 57.1% (24/42) and 35.7% (15/42) of PVL cases, respectively. 19.1% had prominent erythema (erythroleukoplakia). The most common histopathological diagnosis at first visit was hyperkeratosis without dysplasia (22/42; 56.4%). MT occurred in 71.4% patients after a median of 37 months [range: 1-210] from initial visit; erythroleukoplakia exhibited MT in 100% of cases. CONCLUSION: The generic term "proliferative leukoplakia (PL)" may be more appropriate than PVL because 18.3% were fissured and 22.7% erythematous. We also propose the term proliferative erythroleukoplakia to more accurately describe the subset of PL with prominent erythema, which had the highest MT rate. PMID- 29337415 TI - Self-Healing in Supramolecular Polymers. AB - Adaption and self-healing are two major principles in material science, often coupled with the placement of supramolecular moieties within a material. Proper molecular design can enable self-healing within such materials, displaying enormous potential in technology and application. Here, basic physicochemical aspects as well as new material developments in the field are described, published after a recent review in Macromolecular Rapid Communications in 2013. PMID- 29337416 TI - The role of ADAMTS-13 in the coagulopathy of sepsis. AB - The interaction between platelets and the vessel wall is mediated by various receptors and adhesive proteins, of which von Willebrand factor (VWF) is the most prominent. The multimeric size of VWF is an important determinant of a more intense platelet-vessel wall interaction, and is regulated by the VWF-cleaving protease ADAMTS-13. A deficiency in ADAMTS-13 leads to higher concentrations of ultralarge VWF multimers and pathological platelet-vessel wall interactions, in its most typical and extreme form leading to thrombocytopenic thrombotic purpura, a thrombotic microangiopathy characterized by thrombocytopenia, non-immune hemolysis, and organ dysfunction. Thrombotic microangiopathy associated with low levels of ADAMTS-13 may be a component of the coagulopathy observed in patients with sepsis. Here, we review the potential role of ADAMTS-13 deficiency and ultralarge VWF multimers in sepsis, and their relationship with sepsis severity and prognosis. In addition, we discuss the possible benefit of restoring ADAMTS 13 levels or reducing the effect of ultralarge VWF as an adjunctive treatment in patients with sepsis. PMID- 29337417 TI - Guillain-Barre syndrome in a local area in Japan, 2006-2015: an epidemiological and clinical study of 108 patients. AB - BACKGROUND AND PURPOSE: Many epidemiological studies of Guillain-Barre syndrome (GBS) and Fisher syndrome (FS) have been conducted in Europe and America. In contrast, epidemiological studies are rare in Asia where the GBS subtypes differ from those in Western countries. This study was undertaken to clarify the incidence of GBS and FS in a local area in Japan as well as their seasonal trends. METHOD: Seventy-one GBS and 37 FS patients were recorded from 2006 to 2015 in an area of approximately 1.5 million inhabitants in Japan. The incidence, seasonal trends and clinical features of GBS and FS were examined. RESULTS: The incidence rate of GBS was 0.42 cases per 100 000 person-years and that of FS was 0.22 cases per 100 000 person-years. The incidence of GBS increased with age and FS affected predominantly patients aged from 45 to 64 years old. There was some seasonal clustering of acute motor axonal neuropathy (AMAN) and FS in spring and summer, but it was not significant. AMAN and FS patients had a high frequency of preceding infection (AMAN, 68% gastrointestinal infection; FS, 65% upper respiratory infection). Antecedent respiratory infection was significantly associated with FS as an outcome. Serum antibodies to ganglioside GM1 were detected in 71% of AMAN patients and antibodies to GQ1b were detected in 81% of FS patients. CONCLUSIONS: Our study offers evidence of a lower incidence of GBS and a higher incidence of FS in a local area in Japan than in Western countries. PMID- 29337418 TI - Specific Noncovalent Interactions Determine Optimal Structure of a Buried Ligand Moiety: QM/MM and Pure QM Modeling of Complexes of the Small-Molecule CD4 Mimetics and HIV-1 gp120. AB - The small-molecule CD4 mimetics (smCD4mcs) are a class of highly potent HIV-1 entry inhibitors characterized by a unique structure-activity relationship (SAR). They share a halogenated phenyl ring (region 1) that deeply inserts into an otherwise water-filled cavity at the CD4 binding site on the gp120 surface, the so-called F43 cavity. Conservative modifications to region 1 away from this halogenated phenyl motif have all led to loss of activity, despite the fact that they are predicted by standard empirical computational approaches to bind equally well, making it difficult to further optimize this region of the compounds to increase binding to gp120. In this study we used quantum mechanical methods to understand the roots of the interactions between region 1 and the F43 cavity. We clearly demonstrate the presence of halogen bond/sigma-hole and dispersion interactions between region 1 and the F43 cavity residues F376-N377, which are not captured by standard molecular mechanics approaches and the role played by the smCD4mc in the F43 cavity desolvation. These findings rationalize why the halogenated region 1 has proven so difficult to move beyond in smCD4mc optimization, in agreement with experimental evidence. PMID- 29337419 TI - Evolution of resistance to chytridiomycosis is associated with a robust early immune response. AB - Potentiating the evolution of immunity is a promising strategy for addressing biodiversity diseases. Assisted selection for infection resistance may enable the recovery and persistence of amphibians threatened by chytridiomycosis, a devastating fungal skin disease threatening hundreds of species globally. However, knowledge of the mechanisms involved in the natural evolution of immunity to chytridiomycosis is limited. Understanding the mechanisms of such resistance may help speed-assisted selection. Using a transcriptomics approach, we examined gene expression responses of endangered alpine tree frogs (Litoria verreauxii alpina) to subclinical infection, comparing two long-exposed populations with a naive population. We performed a blinded, randomized and controlled exposure experiment, collecting skin, liver and spleen tissues at 4, 8 and 14 days postexposure from 51 wild-caught captively reared infection-naive adult frogs for transcriptome assembly and differential gene expression analyses. We analysed our results in conjunction with infection intensity data, and the results of a large clinical survival experiment run concurrently with individuals from the same clutches. Here, we show that frogs from an evolutionarily long exposed and phenotypically more resistant population of the highly susceptible alpine tree frog demonstrate a more robust innate and adaptive immune response at the critical early subclinical stage of infection when compared with two more susceptible populations. These results are consistent with the occurrence of evolution of resistance against chytridiomycosis, help to explain underlying resistance mechanisms, and provide genes of potential interest and sequence data for future research. We recommend further investigation of cell-mediated immunity pathways, the role of interferons and mechanisms of lymphocyte suppression. PMID- 29337420 TI - A proinflammatory response of bovine endometrial epithelial cells to active sperm in vitro. AB - In the cow, cryopreserved semen is inseminated into the uterus, and most of sperm are removed by backflow and phagocytes. Nevertheless, the mechanism responsible for sperm phagocytosis is unclear. Here, we used cultured bovine uterine epithelial cells (BUECs) to investigate the uterine response to sperm and the mechanism that activates polymorphonuclear neutrophils (PMNs). BUEC monolayers were co-cultured with different numbers of washed sperm obtained from cryopreserved semen (104 , 105 , and 106 sperm/ml) for 3 hr. Sperm dose dependently up-regulated IL8 (Interleukin 8). Sperm at 106 /ml increased mRNA expression of TNFA (Tumor necrosis factor alpha), IL1B (Interleukin 1B), NFKB2 (Nuclear factor kappa B2), and C3 (Complement factor 3), as well as PGES (Prostaglandin E synthase) expression and PGE2 release. Live sperm, but not dead sperm, attached to BUECs, and dead sperm did not induce an acute inflammatory response. Time-dependent effects were evaluated by co-culture of 106 /ml washed sperm with BUECs for 0, 1, 3, and 6 hr. The number of detached sperm increased gradually toward 6 hr. Maximum mRNA expression of IL8, TNFA, IL1B, and NFKB2 was induced at 3 hr, while C3 continued to increase toward 6 hr. Sperm did not stimulate mRNA expression of anti-inflammatory cytokines TGFB1 (Transforming growth factor beta 1) or IL10 (Interleukin 10). Medium conditioned by sperm co incubated with BUECs stimulated PMNs phagocytosis of sperm in vitro. Fresh media supplemented with low levels of IL1B, TNFA, and PGE2 up-regulated sperm phagocytosis by PMNs as well. In conclusion, our findings strongly suggest that the active sperm attach to BUECs and trigger uterine local innate immunity with induction of a pro-inflammatory response that enhances sperm phagocytosis by PMNs. PMID- 29337421 TI - Fenoxaprop-P-ethyl resistance conferred by cytochrome P450s and target site mutation in Alopecurus japonicus. AB - BACKGROUND: Alopecurus japonicus is a serious grass weed species in wheat fields in eastern Asia, and has evolved strong resistance to acetyl-CoA carboxylase (ACCase)-inhibiting herbicides. Although target-site resistance (TSR) to ACCase inhibitors in A. japonicus has been reported, non-target site resistance (NTSR) has not. This study investigated both TSR and NTSR in a fenoxaprop-P-ethyl resistant A. japonicus population (AHFD-3), which was collected in Feidong County, Anhui Province, China. RESULTS: We found that AHFD-3 exhibited high resistance to fenoxaprop-P-ethyl and low resistance to flucarbazone-sodium. The sensitivity of AHFD-3 to fenoxaprop-P-ethyl increased significantly after treatment with cytochrome P450 (P450) inhibitors; however, such synergies between P450 inhibitors and fenoxaprop-P-ethyl were not found in two control populations. Sequences of the entire carboxyltransferase domain of A. japonicus ACCase were obtained, and AHFD-3 plants showed an Asp-2078-Gly substitution in the ACCase. With the derived cleaved amplified polymorphic sequence (dCAPS) method, we found that 85.4% of the plants of AHFD-3 carried this mutation. The P450 content in AHFD-3 plants was significantly higher than those of the two control populations after treatment with fenoxaprop-P-ethyl. Ten partial sequences of P450 genes in A. japonicus were cloned. Three P450 genes were up-regulated 12 h after fenoxaprop-P-ethyl treatment, which were all from the P450 subfamily CYP72A. Moreover, a P450 gene from the P450 family CYP81 was up-regulated after fenoxaprop-P-ethyl treatment in all populations studied. CONCLUSION: Fenoxaprop-P ethyl resistance in AHFD-3 plants was conferred by up-regulation of cytochrome P450s in the CYP72A subfamily and target site mutation of the ACCase gene. (c) 2018 Society of Chemical Industry. PMID- 29337422 TI - Hollow Mesoporous Silica@Metal-Organic Framework and Applications for pH Responsive Drug Delivery. AB - Metal--organic frameworks (MOFs), a new type of porous crystalline material, hold great potential in biomedical applications, such as drug delivery. However, the efficacy of drug delivery is limited by low drug loading. In this work, we synthesized hollow mesoporous silica (HMS)@MOF capsules that can be used as a pH responsive drug delivery system for the anticancer drug doxorubicin (DOX). DOX is loaded into the inner cavity of HMS. Zeolitic imidazolate framework-8 (ZIF-8) nanoparticles are then coated on the outer surface of the DOX-loaded HMS. The obtained material is a capsule (denoted as DOX/HMS@ZIF), in which DOX is encapsulated. The DOX/HMS@ZIF can be used as an efficient pH-responsive drug delivery system. DOX is not released under physiological conditions (pH 7.4), but is released at low pH (4-6) from DOX/HMS@ZIF. The DOX/HMS@ZIF capsule shows much higher cytotoxicity than free DOX and alters the delivery pathway for DOX in cancer cells, while the drug-free HMS@ZIF shows excellent biocompatibility. This opens new opportunities to construct a safe and efficient delivery system for targeted molecules using pH-responsive release for a wide range of applications. PMID- 29337423 TI - The next generation of melanocyte data: Genetic, epigenetic, and transcriptional resource datasets and analysis tools. AB - The number of melanocyte- and melanoma-derived next generation sequence genome scale datasets have rapidly expanded over the past several years. This resource guide provides a summary of publicly available sources of melanocyte cell derived whole genome, exome, mRNA and miRNA transcriptome, chromatin accessibility and epigenetic datasets. Also highlighted are bioinformatic resources and tools for visualization and data queries which allow researchers a genome-scale view of the melanocyte. PMID- 29337424 TI - Enantiomeric separation of six chiral pesticides that contain chiral sulfur/phosphorus atoms by supercritical fluid chromatography. AB - Six chiral pesticides containing chiral sulfur/phosphorus atoms were separated by supercritical fluid chromatography with supercritical CO2 as the main mobile phase component. The effect of the chiral stationary phase, different type and concentration of modifiers, column temperature, and backpressure on the separation efficiency was investigated to obtain the appropriate separation condition. Five chiral pesticides (isofenphos-methyl, isocarbophos, flufiprole, fipronil, and ethiprole) were baseline separated under experimental conditions, while isofenphos only obtained partial separation. The Chiralpak AD-3 column showed a better chiral separation ability than others for chiral pesticides containing chiral sulfur/phosphorus atoms. When different modifiers at the same concentration were used, the retention factor of pesticides except flufiprole decreased in the order of isopropanol, ethanol, methanol; meanwhile, the retention factor of flufiprole increased in the order of isopropanol, ethanol, methanol. For a given modifier, the retention factor and resolution decreased on the whole with the increase of its concentration. The enantiomer separation of five chiral pesticides was an "enthalpy-driven" process, and the separation factor decreased as the temperature increased. The backpressure of the mobile phase had little effect on the separation factor and resolution. PMID- 29337425 TI - Distinct gene expression profiles and regulation networks of nasal polyps in eosinophilic and non-eosinophilic chronic rhinosinusitis. AB - BACKGROUND: Chronic rhinosinusitis with nasal polyps (CRSwNP) is known to have 2 phenotypes in East Asia. Eosinophilic CRSwNP (ECRSwNP), defined as tissue eosinophilia and easily recurrent, is distinguished from other non-eosinophilic CRSwNP (NECRSwNP) types. However, the pathogenesis of each remains unclear. METHODS: Nasal polyp tissues from ECRS (ECRSwNP) and NECRS (NECRSwNP) patients were obtained, and their comprehensive gene expression profiles were investigated by microarray analysis. Bioinformatics approaches (eg, Ingenuity Pathway Analysis [IPA]) were used to interrogate the data sets. RESULTS: Hierarchical clustering and principal component analysis (PCA) collectively showed that ECRSwNP and NECRSwNP had distinct gene expression patterns. Of note, these genes could be divided into 8 distinctive clusters having different expression patterns and functions. Upstream Regulator Analysis revealed that not only T-helper 2 (Th2) and the eosinophilia-related molecules (interleukin 4 [IL4], IL5, and colony stimulating factor 2 [CSF2]) reported so far, but also cell cycle regulators (cyclin dependent kinase inhibitor 1A [CDKNA1] and cyclin D1 [CCND1]) and a tissue fibrosis-related molecule (transforming growth factor beta [TGFbeta]) were identified in ECRSwNP. On the other hand, mainly interferons (IFNs) and acute inflammatory cytokines (IL1 and IL6) were predicted as upstream regulators in NECRSwNP. CONCLUSION: These results are useful for understanding the molecular basis of the mechanisms of CRSwNP and point to new targets for developing specific biomarkers and personalized therapeutic strategies for CRSwNP. PMID- 29337426 TI - Prospective randomized study of conversion from tacrolimus to cyclosporine A to improve glucose metabolism in patients with posttransplant diabetes mellitus after renal transplantation. AB - Tacrolimus (TAC) increases the risk of posttransplant diabetes (PTDM) compared with cyclosporine A (CYC). The present 12-month, multicenter, investigator driven, prospective, randomized study was designed to assess whether conversion from tacrolimus to CYC can reverse PTDM after renal transplantation. Predominantly white patients with PTDM according to the 2005 American Diabetes Association criteria were randomized to either replacement of TAC with CYC or continuation of their TAC-based regimen after stratification for type of glucose lowering therapy, steroid therapy, and hepatitis C status. At 12 months, 14 of 41 patients with complete data in the CYC arm (34%; 95%CI 19%-49%) were free of diabetes, whereas this was the case in only 4 of 39 patients (10%; 95%CI 3%-20%) in the TAC arm (P = .01). At 12 months, 39% of patients in the CYC arm were off glucose-lowering medication vs 13% of patients in the TAC arm (P = .01). The CYC group decreased glycated hemoglobin level during the 12-month follow-up, resulting in significantly lower levels compared with the TAC group (6.0 +/- 0.9% vs 7.1 +/- 1.7% at 12 months; P = .002). In conclusion, replacement of TAC with CYC significantly improves glucose metabolism and has the potential to reverse diabetes during the first year after conversion. (EU Clinical Trials Register No. 2006-001765-42). PMID- 29337427 TI - Outcomes From the First Helene Fuld Health Trust National Institute for Evidence Based Practice in Nursing and Healthcare Invitational Expert Forum. AB - BACKGROUND: Even though multiple positive outcomes are the result of evidence based care, including improvements in healthcare quality, safety, and costs, it is not consistently delivered by clinicians in healthcare systems throughout the world. AIMS: In an attempt to accelerate the implementation of evidence-based practice (EBP) across the United States, an invitational Interprofessional National EBP Forum to determine major priorities for the advancement of EBP was held during the launch of the newly established Helene Fuld Health Trust National Institute for Evidence-Based Practice in Nursing and Healthcare at The Ohio State University College of Nursing. METHODS: Interprofessional leaders from national organizations and federal agencies across the United States were invited to participate in the Forum. A pre-Forum survey was disseminated to participants to assess their perceptions of the state of EBP and actions necessary to speed the translation of research into real-world clinical settings. RESULTS: Findings from a pre-Forum survey (n = 47) indicated ongoing low implementation of EBP in U.S. healthcare settings. These findings were shared with leaders from 45 organizations and agencies who attended the Forum. Breakout groups on practice, education, implementation science, and policy discussed the findings and responded to a set of standardized questions. High-priority action tactics were identified, including the need for: (a) enhanced reimbursement for EBP, (b) more interprofessional education and skills building in EBP, and (c) leaders to prioritize EBP and fuel it with resources. LINKING EVIDENCE TO ACTION: The delivery of and reimbursement for evidence-based care must become a high national priority. Academic faculty across all healthcare disciplines need to teach EBP, healthcare systems must invest in EBP resources, and payers must attach reimbursement to care that is evidence-based. An action collaborative of the participating organizations has been formed to accelerate EBP across the United States to achieve the quadruple aim in health care. PMID- 29337428 TI - AP4 positively regulates LAPTM4B to promote hepatocellular carcinoma growth and metastasis, while reducing chemotherapy sensitivity. AB - Polymorphisms of the lysosomal-associated protein transmembrane-4 beta (LAPTM4B) gene are related to various forms of tumour susceptibility, which led us to hypothesize that some unique transcription factors targeting this polymorphism region may affect the biological function of LAPTM4B in tumour progression. In this study, we found that the transcription factor AP4 directly binds to the polymorphism region of the LAPTM4B gene promoter and induces its transcription. In addition, we demonstrated that AP4 promotes hepatocellular carcinoma (HCC) cell proliferation and metastasis and depresses chemotherapy sensitivity via LAPTM4B by activating the PI3K/AKT signalling pathway and caspase-dependent pathway. Interestingly, we found that AP4 could not only regulate LAPTM4B by directly binding to the promoter, but also be regulated via a positive feedback mechanism involving LAPTM4B acting on c-myc. Finally, we showed that AP4 and LAPTM4B are highly coexpressed in HCC tissues, and their coexpression may be a marker of poor prognosis. These findings provide evidence of the expression and functional coupling between AP4 and LAPTM4B and shed light on the regulation of LAPTM4B and its function in liver cancer. PMID- 29337429 TI - Co-Expression of ORFCma with PHB Depolymerase (PhaZCma ) in Escherichia coli Induces Efficient Whole-Cell Biodegradation of Polyesters. AB - Whole-cell degradation of polyesters not only avoids the tedious process of enzyme separation, but also allows the degraded product to be reused as a carbon source. In this study, Escherichia coli BL21(DE3) harboring phaZCma , a gene encoding poly(3-hydroxybutyrate) (PHB) depolymerase from Caldimonas manganoxidans, is constructed. The extra-cellular fraction of E. coli/pPHAZ exhibits a fast PHB degradation rate where it only took 35 h to completely degrade PHB films, while C. manganoxidans takes 81 h to do the same. The co expression of ORFCma (a putative periplasmic substrate binding protein that is within the same operon of phaZCma ) further improves the PHB degradation. While 28 h is needed for E. coli/pPHAZ to cause an 80% weight loss in PHB films, E. coli/pORFPHAZ needs only 21 h. Furthermore, it is able to degrade at-least four different polyesters, PHB, poly(lactic acid) (PLA), polycaprolactone (PCL), and poly(butylene succinate-co-adipate) (PBSA). Testing of the time course of 3 hydroxybutyrate concentration and the turbidity of the degradation solutions over time shows that PhaZCma has both exo- and endo-enzymatic activity. The whole-cell E. coli/pORFPHAZ can be used for recycling various polyesters while ORFCma can potentially be a universal element for enhancing the secretion of recombinant protein. PMID- 29337431 TI - Spotlights on our sister journals: Angew. Chem. Int. Ed. 4/2018. PMID- 29337430 TI - Corrigendum: Interband Absorption Enhanced Optical Activity in Discrete Au@Ag Core-Shell Nanocuboids: Probing Extended Helical Conformation of Chemisorbed Cysteine Molecules. PMID- 29337432 TI - Corrigendum: Nanoscale Control of Homoepitaxial Growth on a Two-Dimensional Zeolite. PMID- 29337433 TI - Numerical simulation of two consecutive nasal respiratory cycles: toward a better understanding of nasal physiology. AB - BACKGROUND: Computational fluid dynamic (CFD) simulations have greatly improved the understanding of nasal physiology. We postulate that simulating the entire and repeated respiratory nasal cycles, within the whole sinonasal cavities, is mandatory to gather more accurate observations and better understand airflow patterns. METHODS: A 3-dimensional (3D) sinonasal model was constructed from a healthy adult computed tomography (CT) scan which discretized in 6.6 million cells (mean volume, 0.008 mm3 ). CFD simulations were performed with ANSYS(c)FluentTMv16.0.0 software with transient and turbulent airflow (k-omega model). Two respiratory cycles (8 seconds) were simulated to assess pressure, velocity, wall shear stress, and particle residence time. RESULTS: The pressure gradients within the sinus cavities varied according to their place of connection to the main passage. Alternations in pressure gradients induced a slight pumping phenomenon close to the ostia but no movement of air was observed within the sinus cavities. Strong movements were observed within the inferior meatus during expiration contrary to the inspiration, as in the olfactory cleft at the same time. Particle residence time was longer during expiration than inspiration due to nasal valve resistance, as if the expiratory phase was preparing the next inspiratory phase. Throughout expiration, some particles remained in contact with the lower turbinates. The posterior part of the olfactory cleft was gradually filled with particles that did not leave the nose at the next respiratory cycle. This pattern increased as the respiratory cycle was repeated. CONCLUSION: CFD is more efficient and reliable when the entire respiratory cycle is simulated and repeated to avoid losing information. PMID- 29337434 TI - Light and darkness in circadian rhythms. PMID- 29337435 TI - Hyalinosis cutis et mucosae: A clinical investigation with special regard to mucosal changes. PMID- 29337436 TI - Integrating TEMPO and Its Analogues with Visible-Light Photocatalysis. AB - Visible light has risen to become a very important facilitator for selective radical reactions enabled by well-cognized photocatalysts. The renaissance of visible-light photocatalysis on this matter partly relies on integrating it with other fields of catalysis. In parallel, 2,2,6,6-tetramethylpiperidin N-oxide (TEMPO), a quintessential persistent radical, has a wide range of uses owing to its exceptional redox behavior, which gives rise to its latest prominence in catalysis. Therefore, integrating the catalysis of TEMPO with photocatalysis to perform visible-light-induced selective reactions becomes a very convenient marriage of merits. In this context, the integration of different types of photocatalysts, including metal complexes, metal-free organic dyes, and semiconductors, with TEMPO for outstanding organic transformations will be summarized. To expand further the catalytic repertoire, the integration of TEMPOH analogues such as NHPI (N-hydroxyphthalimide) and NHS (N-hydroxysuccinimide) with photocatalysis will also be discussed. Hopefully, these advances will pave the way for more breakthroughs by integrating TEMPO and its analogues with photocatalysis to lead to a valuable blueprint for visible-light-induced selective organic transformations. PMID- 29337437 TI - Canonical signaling and nuclear activity of mTOR-a teamwork effort to regulate metabolism and cell growth. AB - Mechanistic (or mammalian) target of rapamycin (mTOR) is a kinase that regulates almost all functions related to cell growth and metabolism in response to extra- and intracellular stimuli, such as availability of nutrients, the presence of growth factors, or the energy status of the cell. As part of two distinct protein complexes, mTORC1 and mTORC2, the kinase has been shown to influence cell growth and proliferation by controlling ribosome biogenesis, mRNA translation, carbohydrate and lipid metabolism, protein degradation, autophagy as well as microtubule and actin dynamics. In addition to these well-characterized functions, mTOR can also influence gene transcription. While most studies focused on investigating how canonical mTOR signaling regulates the activity of transcription factors outside the nucleus, recent findings point to a more direct role for mTOR as a transcription factor operating on chromatin in the nucleus. In particular, recent genome-wide identification of mTOR targets on chromatin reveals that its activities in the nucleus and cytoplasm are functionally and biologically linked, thus uncovering a novel paradigm in mTOR function. PMID- 29337439 TI - ? PMID- 29337440 TI - [Addictions]. AB - This year, the actuality for addictions in this edition addresses four points. The disease model of addiction is criticized by the cognitive neurosciences which need to consider the agentivity of the persons. Regarding the societal actuality, clinical pharmacology review of cannabidiol presents an update on legal cannabis. The suicidality of excessive gamblers may be prevented specifically. Addiction and first psychotic episodes need an integrated care. PMID- 29337438 TI - 3D-e-Chem: Structural Cheminformatics Workflows for Computer-Aided Drug Discovery. AB - eScience technologies are needed to process the information available in many heterogeneous types of protein-ligand interaction data and to capture these data into models that enable the design of efficacious and safe medicines. Here we present scientific KNIME tools and workflows that enable the integration of chemical, pharmacological, and structural information for: i) structure-based bioactivity data mapping, ii) structure-based identification of scaffold replacement strategies for ligand design, iii) ligand-based target prediction, iv) protein sequence-based binding site identification and ligand repurposing, and v) structure-based pharmacophore comparison for ligand repurposing across protein families. The modular setup of the workflows and the use of well established standards allows the re-use of these protocols and facilitates the design of customized computer-aided drug discovery workflows. PMID- 29337441 TI - [Allergology and clinical immunology]. AB - Hereditary angioedema (HA) is a disabling and potentially fatal condition. The management of HA includes treatment of acute attacks, short-term prophylaxis to prevent an attack, and long-term prophylaxis to minimize the frequency and severity of recurrent attacks. In this article, we will present new therapeutic alternatives for long term prophylaxis. Glucocorticoids (GC) usage leads to a number of severe side-effects. In giant cell arteritis, the use of tocilizumab in conjunction with low doses of GC reduces the number of relapses. In ANCA associated vasculitis the use of an anti-C5R (avacopan) alone or in conjunction with low doses of GC results in similar remission rates to those induced by high dose GC. PMID- 29337442 TI - [Angiology and haemostasis. Highlights on some new data in 2017]. AB - New data support the fact that prophylactic anticoagulation with direct oral anticoagulants is effective and safe for the long-term prevention of venous thromboembolism. This type of treatment is dedicated for a subgroup of patients only, which is described in this article. With regard to major bleedings occurring with these anticoagulants, new data have been added to those already available for idarucizumab, a specific antagonist of dabigatran. Finally, we summarize the data regarding a breakthrough molecule, emicizumab, which could potentially open a new era in the management of people with haemophilia A. PMID- 29337444 TI - [Fumarates - far more than a dietary supplement]. AB - Fumaric acid has an important role in the citric acid cycle. Its esters were first used by a German chemist to treat his own psoriasis, hypothesizing that the disease may be related to disturbances in this very cycle. Meanwhile, the mechanisms underlying its anti-inflammatory efficacy are much better understood. A monosubstance derived from the mix of esters used originally is now being authorized for treating multiple sclerosis, and in 2017 dimethylfumaric acid ester became a globally available option to treat psoriasis. This very practical therapeutic will most likely become quite popular amongst patients. Therefore, general practitioners might need to familiarize themselves with the profile of this drug, including its potential risks and some very rare but potentially important adverse effects. PMID- 29337443 TI - [Update in Surgical Oncology]. AB - In 2017, data from large multicentre randomized controlled trials assessed the safety of minimally invasive techniques for liver or esophagus resection with similar oncologic outcome compared to open approach. Patients also benefit from progress in medical oncology in particular with the development of new targeted therapies, offering surgery to patients with initially non-resectable disease. The increase in complete tumor response after neoadjuvant treatment allows more conservative approaches, like organ preserving surgery for rectal cancer. The constant improvement in perioperative care and enhanced recovery programs (Enhanced Recovery After Surgery - ERAS) reduce both length of hospital stay and costs, decrease the risk of postoperative complications, and offer better quality of life to the patients. PMID- 29337445 TI - [News in diabetology 2017]. AB - The field of diabetes is constantly evolving, with numerous new molecules reaching the market for the treatment of type 2 diabetes. Paradoxically, this drug jungle is difficult for the primary care physician and can lead to therapeutic inertia. The aim of this article is to discuss new molecules and new cardiovascular outcome studies that lead to changes in guidelines pertinent to the pharmacological treatment of type 2 diabetes. PMID- 29337446 TI - [Endocrinopathies induced by immune checkpoint inhibitors]. AB - Immune checkpoint Inhibitors are new immunomodulatory treatments that have proven their anti-tumor efficacy in several advanced cancers. Nevertheless, their use has paved the way for multiple immunological adverse effects that affect many systems and organs including endocrine glands such as the pituitary, thyroid, adrenal and pancreas. Hypophysitis is the most common complication of anti-CTLA-4 monoclonal antibodies, while anti-PD-1 and anti-PD-L1 antibodies cause more thyroid complications. Adrenal insufficiency and type 1 diabetes are relatively less common. Endocrinologists and primary care physicians as well as oncologists are likely to deal with these complications and as such, knowledge of these drugs and their side effects is essential for good practice. PMID- 29337447 TI - [Geriatric medicine]. AB - 2017 highlights benefits of prevention. Better control of cardiovascular risk reduces the incidence of dementia and monthly high-dose vitamin D the incidence of respiratory infections in nursing home. Pre-operative geriatric assessment lowers by 20% the rate of delirium after hip-fracture surgery and complications in vascular surgery. Deleterious effects are also reported. High-dose vitamin D triples the rate of falls in supplemented residents and doesn't improve gait speed in sedentary men. Widely used in cardiovascular prevention, antithrombotic therapy is associated with an astonishing risk of subdural bleeding that further increases with the number of drugs combined together. Finally, the non pharmacological management of behavioral and psychotic symptoms in advanced dementia, although effective, doesn't reduce the associated burden for proxies. PMID- 29337448 TI - [Obstetrics]. AB - During the past year, we have renewed interest in old well-known problems. New studies and guidelines have been issued about lung maturation in cases of preterm delivery after 37 weeks of gestation. Short term benefits have been proven but the number of cases needed to treat to prevent one case of respiratory complications is high and with possible neurological long-term effects. Also, several studies have shown the benefits of including the ultrasound measurement of the inferior segment of the uterus in order to attempt vaginal delivery after caesarean section with the lowest risk for uterine rupture, while others studies have shown the best procedure to close the uterus during cesarean section. And finally, we will discuss about an old friend: aspirin to reduce the risk of pre eclampsia. PMID- 29337449 TI - [Blood pressure management : what's new in 2017 ?] AB - In the last 2 years, the attention of hypertension specialists has been focused on the results of the SPRINT trial and its post-hoc analyses and its possible implications for the management of hypertensive patients. While waiting for new European hypertension guidelines due in 2018, the year 2017 can be considered as a year of transition. Yet, several interesting clinical studies have been published which may affect the future management of hypertension. Thus we shall discuss new data on the benefits of eating more fruits and vegetables on cardiovascular mortality, the " quadpill " concept, the impact of various non steroidal anti-inflammatory drugs on blood pressure and the most recent data on renal denervation. PMID- 29337450 TI - [Emergency medicine : update 2017]. AB - Emergency medicine is part of the current stream of efficient and qualitative medicine : 1) the modified Valsava maneuver results in the resolution of almost 50% of supra-ventricular tachycardia without any drug; 2) lung echography performed by emergency physicians is a very sensitive and specific diagnostic tool for most thoracic emergencies; 3) cardiopulmonary resuscitation initiated by lay-rescuers improves short and long-term outcome; 4) no anticoagulant treatment is warranted in distal deep vein thrombosis and 5) systematic unenhanced abdominal CT might improve evaluation of elderly patients with acute abdominal pain. PMID- 29337451 TI - [Nephrology]. AB - New antidiabetic drugs which slow effectively the course of diabetic nephropathy are now available. There is no benefit of prophylactic hydratation to prevent contrast nephropathy in patients with moderate chronic kidney disease. In elderly hemodialysis patients, hemodiafiltration seems better tolerated than conventional hemodialysis, although there is a similar dialysis-induced myocardial stress with both methods. Role of de novo donor-specific antibodies is better characterized, which may subsequently lead to new treatments of graft rejection. PMID- 29337452 TI - [Neurology]. AB - Ocrelizumab (Ocrevus), an anti-CD20 monoclonal antibody, has been approved for the treatment of multiple sclerosis. Eculizumab (Soliris) has been approved in several countries for refractory forms of generalized seropositive severe myasthenia gravis. A form of gene therapy, patisiran, has shown positive results in transthyretin familial amyloidosis. In the treatment of headaches, particularly migraines, non-pharmacological approaches have shown some interesting results. The criteria for Lewy body dementia have been revised. Generic use of lamotrigine does not result in recrudescence of epileptic seizures or adverse effects. PMID- 29337453 TI - [AMD and complement pathway in 2017]. AB - AMD is the major cause of visual loss in individuals older than 50 in the western countries. Whilst tremendous progress has been made by the intraocular repeated injections of anti-VEGFs in wet AMD, no treatment is recognized to prevent progression of dry AMD, which represents more than 50 % of the cases. Interestingly, an over activation of the complement alternative pathway has been associated to both forms of AMD. But, several clinical studies have failed to demonstrate any efficacy of molecules blocking the complement pathway at various stage of its activation. In 2017, another failure was reported with lampalizumab after this drug succeeded in phase 2. Why such failure? What is the exact role of complement in AMD pathogenesis? Is complement regulation a hopeless pathway to follow in AMD? This article summarizes knowledge in the field. PMID- 29337454 TI - [Osteoporosis]. AB - The risk for a second fracture within two years after a first one is high. Ten years denosumab treatment show favorable results with a risk of early vertebral fractures in patients with prevalent vertebral fractures when treatment is stopped. Teriparatide is more effective than risedronate to prevent vertebral and clinical fractures in high risk patients. Romosozumab acts as an anabolic agent in osteoporosis. Atypical femoral fractures associated with bisphosphonate treatment could be more frequent in patients with particular anatomical features. Management of osteoporosis treatment depends on the drug which is used and on the risk of fracture of the patient. PMID- 29337455 TI - [Pediatrics - New classification of seizures and epilepsies]. AB - The International League Against Epilepsy published a new classification of epileptic seizures and epilepsies. It is more transparent and important notions like etiologies and comorbities have been added. The identification of seizures, epilepsies then epilepsy syndromes constitutes the three steps of this classification. PMID- 29337456 TI - [Pediatrics - Perthes disease : current knowledges and treatment]. AB - Perthes's disease corresponds to an interruption of the vascularization of the epiphyseal nucleus of the femoral head followed by avascular necrosis. This necrosis weakens the bone and subchondral fractures associated with a deformation of the femoral head is seen. It is important not to miss an extrusion of the femoral head, which makes surgical treatment unavoidable. The loss of joint congruence causes functional limitations and represents an increased risk for early hip osteoarthritis. Non weight bearing limits the subchondral fractures, but requires an important adaptation from the patient and his entourage. PMID- 29337457 TI - [Pharmacovigilance update]. AB - The main pharmacovigilance updates in 2017 are reviewed. Denosumab : rebound associated multiple vertebral fractures after discontinuation. Canagliflozine: increased risk of foot/leg amputations. Biologic and targeted cancer therapies, direct-acting antivirals for chronic hepatitis C: risk of hepatitis B reactivation. Checkpoint inhibitors : immune-related adverse events and graft rejection. Fingolimod : rebound-associated reactivation of MS following withdrawal. Daclizumab: risk of severe liver injury leading to restricted use in MS patients. Posaconazole: risk of overexposure when switching from oral suspension to tablets. Voriconazole: cutaneous squamous cell carcinoma under long term therapy. Proton pump inhibitors : early exposure might increase fracture risk in young children. PMID- 29337458 TI - [Pulmonary diseases. Asthma, COPD and sleep apnea syndrome]. AB - Among the novelties described in the management of pulmonary disorders during the year 2017, we chose to describe three. First, the indication for inhaled glucocorticosteroids (ICS) in COPD has been revisited, because of their relationship with an increased occurence of pneumonia : ICS are now recommended only in severe COPD (GOLD D) with frequent exacerbations as second line treatment. Secondly, azithromycine has shown very promising results in poorly controlled severe asthma, with a significant impact on symptoms and exacerbations. Finally, despite the association between sleep apnea syndrome and cardiovascular morbidity, the prescription of CPAP in asymptomatic individuals as primary or secondary prevention is not supported by the recent literature. PMID- 29337459 TI - [Psychiatry]. AB - Children of patients with psychiatric disorders are at higher risk to develop a psychiatric illness. In addition, phases of crisis and hospitalization of the parent are often traumatizing to the children, especially during childhood. Although a specific offer to face these issues is compulsory in some countries, such is not the case in Switzerland. In this paper we describe the implementation of a special offer for children of parents with mental illness (Famille +) in the service of general psychiatry at the Department of psychiatry of the Lausanne University hospital in Switzerland. We will also discuss the development and implementation of the Joint Crisis Plan, a collaborative tool where psychiatric patients and clinicians define the strategies that should be applied in case of crisis, which strengthens the empowerment of patients and their participation to decisions about their treatment. PMID- 29337460 TI - [Rheumatology. Checkpoint-induced autoimmunity - birth of a new disease]. AB - Tumor cells express checkpoint proteins in order to prevent an immune reaction by T-cells. Checkpoint inhibitors are successfully used in oncology to unleash a cytotoxic immune response. Unfortunately this treatment increasingly leads to immune-related adverse events which resemble various primary autoimmune disorders known in rheumatology. Potentially, checkpoint dysfunction also underlies rheumatic diseases which would open the way for new treatment options to restore immune tolerance. PMID- 29337461 TI - [Urology]. AB - This article points at recent developments in urology in the field of malignant diseases of the urinary system and the diagnostic and therapeutic management of benign conditions as well, that occur frequently in our ageing population. PMID- 29337462 TI - [Antiretroviral treatments : towards simplified regimens ?] AB - The chronicity of HIV infection and the use of antiretroviral therapy among all individuals living with HIV necessitate new treatment strategies. Alternatives to lifelong tri-therapy treatment are under investigation with the aim to improve the quality of life of patients. New therapies with longer half-lives or " biological " treatments are also under study in clinical trials in order to develop streamlined maintenance strategies. These simplified therapies represent the near future of HIV management both with regards to less toxic molecules and a change in the traditional dogma of tri-therapy, including the daily dose thanks to the possibility of dosage only on certain weekdays or via molecules under development with a long duration of action. PMID- 29337463 TI - [Virtual reality: a tool that can be used in outpatient diabetes services]. AB - Health-related emerging technologies are growing fast. The use of virtual reality in diabetes outpatient care still remains unprecedented, notably in Switzerland. Thus, the Programme cantonal Diabete led a pilot study to assess the feasibility of an immersive application in such an outpatient setting. Results emphasize that this device is practicable and useful in diabetes care. Patients and their relatives overall appreciate the game, each of them for specific reasons: playful quality, opportunity to " learn differently " or to exchange about the subjective experience. Furthermore, there is no restraint (age, language, educational level...) in the ability to use such a device, except for emerging technologies habit. PMID- 29337464 TI - ? PMID- 29337465 TI - ? PMID- 29337466 TI - ? PMID- 29337467 TI - ? PMID- 29337468 TI - ? PMID- 29337469 TI - ? PMID- 29337470 TI - Multifunctional pH-Responsive Folate Receptor Mediated Polymer Nanoparticles for Drug Delivery. AB - Multifunctional pH-responsive folate receptor mediated targeted polymer nanoparticles (TPNps) were developed for docetaxel (DTX) delivery based on poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)poly (beta-amino ester) (P123-PAE) and poly(ethylene glycol)-block poly(propylene glycol)-block-poly(ethylene glycol)-folate (P123-FA) copolymers. The DTX was loaded into the TPNps with a decent drug loading content of 15.02 +/- 0.14 wt%. In vitro drug release results showed that the DTX was released from the TPNps at a pH-dependent manner. Tetrazolium dye (MTT) assay revealed that the bland polymer nanoparticles displayed almost nontoxicity at 200 MUg/mL concentration. However, the DTX-loaded TPNps showed high anti-tumor activity at low IC50 (0.72 MUg/mL) for MCF-7 cells following 48 h incubation. Cellular uptake experiments revealed that the TPNps had higher degree of cellular uptake than nontargeted polymer nanoparticles, indicating that the nanoparticles were internalized into the cells via FA receptor-mediated endocytosis. Moreover, the cellular uptake pathways for the FA grafted polymer were involved in energy dependent, clathrin-mediated and caveolae-mediated endocytosis. The cell killing effect and cellular uptake of the DTX-TPNps by the MCF-7 cells were all enhanced by about two folds at pH 5.5 when compared with pH 7.4. The TPNps also significantly prolonged the in vivo retention time for the DTX. These results suggest that the biocompatible pH responsive folate-modified polymer nanoparticles present a promising safe nanosystem for intracellular targeted delivery of DTX. PMID- 29337484 TI - Simultaneous Targeting of Differentiated Breast Cancer Cells and Breast Cancer Stem Cells by Combination of Docetaxel- and Sulforaphane-Loaded Self-Assembled Poly(D, L-lactide-co-glycolide)/Hyaluronic Acid Block Copolymer-Based Nanoparticles. AB - Breast cancer stem cells (BCSCs) are implicated in the initiation and progression of breast cancer and are responsible for metastasis and recurrence. In this study, we attempted to simultaneously target differentiated breast cancer cells (DBCCs) and BCSCs by using a combination of docetaxel (DTX)- and sulforaphane (SFN)-loaded poly(D, L-lactide-coglycolide)/hyaluronic acid (PLGA-b-HA)-based nanoparticles. BCSCs were identified as having an ESA+CD44+CD24- phenotype, which exhibited docetaxel resistance. Drug-loaded nanoparticles exhibited enhanced cytotoxicity towards both DBCCs and BCSCs compared with free drugs. SFN-loaded nanoparticles were more effective in inhibiting BCSCs than free SFN in vitro by down-regulating beta-catenin expression. In vivo analysis of anti-tumor activity showed that the combination therapy with DTX- and SFN-loaded nanoparticles had the strongest antitumor efficacy. In vivo analysis of anti-BCSCs activity showed that the self-renewal ability of BCSCs was strongly inhibited in DTX- and SFN loaded nanoparticle-treated groups. In conclusion, the combination of SFN- and DTX-loaded PLGA-b-HA nanoparticles shows therapeutic potential in the treatment of breast cancer by simultaneously targeting DBCCs and BCSCs. PMID- 29337485 TI - A Novel Thermochromic Liquid Crystal Fabric Design for the Early Detection of High-Risk Foot Complications AB - Background: We developed a prototype of a novel thermochromic liquid crystal (TLC)-coated fabric with an extended temperature range and enhanced sensitivity. By incorporating color and pattern recognition into the fabric, rapid determination of the underlying pedal temperature is facilitated. The purpose of this study was to evaluate the accuracy of the TLC fabric as a potential diagnostic aid for identifying complications in the high-risk foot. Methods: The hands of 100 individuals were used to compare the mean maximum temperatures indicated by the fabric versus standard thermal camera images. Findings were statistically analyzed using a paired t test, with significance defined as P < .05. Results: Except for the tip of the thumb and regions in the palm, there were no statistically significant differences between mean maximum temperatures measured with the thermal camera and those detected with the TLC fabric. Minor differences were relatively consistent in all nine regions of the hand and were not considered to be clinically significant. Conclusions: Using direct visual analysis, we demonstrated that a novel TLC fabric could accurately map temperatures in the palmar surface of the hand. The findings support the continued development of a temperature-sensitive sock that can be used in the home to monitor for temperature changes that may indicate the onset of complications in the high-risk foot. PMID- 29337486 TI - Improving risk stratification among veterans diagnosed with prostate cancer: impact of the 17-gene prostate score assay. AB - BACKGROUND: Active surveillance (AS) has been widely implemented within Veterans Affairs' medical centers (VAMCs) as a standard of care for low-risk prostate cancer (PCa). Patient characteristics such as age, race, and Agent Orange (AO) exposure may influence advisability of AS in veterans. The 17-gene assay may improve risk stratification and management selection. OBJECTIVES: To compare management strategies for PCa at 6 VAMCs before and after introduction of the Oncotype DX Genomic Prostate Score (GPS) assay. STUDY DESIGN: We reviewed records of patients diagnosed with PCa between 2013 and 2014 to identify management patterns in an untested cohort. From 2015 to 2016, these patients received GPS testing in a prospective study. Charts from 6 months post biopsy were reviewed for both cohorts to compare management received in the untested and tested cohorts. SUBJECTS: Men who just received their diagnosis and have National Comprehensive Cancer Network (NCCN) very low-, low-, and select cases of intermediate-risk PCa. RESULTS: Patient characteristics were generally similar in the untested and tested cohorts. AS utilization was 12% higher in the tested cohort compared with the untested cohort. In men younger than 60 years, utilization of AS in tested men was 33% higher than in untested men. AS in tested men was higher across all NCCN risk groups and races, particular in low-risk men (72% vs 90% for untested vs tested, respectively). Tested veterans exposed to AO received less AS than untested veterans. Tested nonexposed veterans received 19% more AS than untested veterans. Median GPS results did not significantly differ as a factor of race or AO exposure. CONCLUSIONS: Men who receive GPS testing are more likely to utilize AS within the year post diagnosis, regardless of age, race, and NCCN risk group. Median GPS was similar across racial groups and AO exposure groups, suggesting similar biology across these groups. The GPS assay may be a useful tool to refine risk assessment of PCa and increase rates of AS among clinically and biologically low-risk patients, which is in line with guideline-based care. PMID- 29337487 TI - Production of Nanoscale Vibration for Stimulation of Human Mesenchymal Stem Cells. AB - Mechanical stimulation is becoming a common technique for manipulating cell behaviour in bioengineering with applications in tissue engineering and possibly regenerative therapy. Living organisms show biological responses in vivo and in vitro to various types of mechanical stimulation including vibration. The development of apparatus to produce vertical motions of nanoscale amplitude is detailed and their effect on mouse endothelial (Le2) and human mesenchymal stem cells (hMSCs) is investigated. Piezo ceramic actuators and aluminium reinforcement were utilised along with laser interferometry to ensure amplitude consistency at the nanometre level across a cell culture substrate. Peak force applied to the cells was estimated to be of nN magnitude at frequencies of 500 and 1000 Hz. Morphological changes in the cytoskeleton were found for both cell types along with increased MSC proliferation after 1 week of stimulation at 500 Hz. Changes in the nuclear size of MSCs after stimulation were also found. PMID- 29337488 TI - Optimization of Transforming Growth Factor-beta1 siRNA Loaded Chitosan Tripolyphosphate Nanoparticles for the Treatment of Colorectal Cancer Hepatic Metastasis in a Mouse Model. AB - Metastatic liver disease is the most frequent complication of colorectal cancer (CRC), and the development of liver-targeted nanoparticles for drug delivery is a promising therapeutic approach. However, to improve the efficacy of passive drug delivery, its release rate at the sites of liver metastases should be maximized while minimizing drug uptake in nontargeted cells. Herein, we report the development and use of tripolyphosphate (TPP) modified chitosan (CS) nanoparticles loaded with small interfering RNA (siRNA) directed against transforming growth factor beta1 (TGF-beta1), which promotes tumorigenesis in advanced CRC. The nanoparticles efficiently inhibited CRC hepatic metastasis in an animal model. Particles of 300 nm in size and zeta potential at 20 mV showed a more striking liver-targeting effect. A weight ratio of CS/TPP of 8:1 for particles with TGF- beta1 siRNA loaded at a concentration of 20 MUM at pH 7.5 showed good pH-responsive drug release when exposed to a CRC homogenate at pH 6.5. In vivo, CS-TPP/TGF- beta1 siRNA nanoparticles significantly reduced the volume and number of CRC metastatic foci. This was accompanied by the downregulation of TGF- beta1 expression in the tumor microenvironment, inhibition of tumor associated macrophage formation, and improvement of the immune microenvironment. These results indicate that it is possible to achieve effective passive liver targeting by optimizing the processing parameters. The design of nanoparticles carrying siRNA against overexpressed oncogenes provides an excellent platform for the development of an efficient liver cancer therapy. PMID- 29337489 TI - An Investigation of the Usability of Solid Lipid Nanoparticles Radiolabelled with Tc-99m as Imaging Agents in Liver-Spleen Scintigraphy. AB - In this work, solid lipid nanoparticles (SLNs) were prepared by microemulsion and ultrasonication methods in the first stage of the production process of 99mTc SLNs, which is considered to be an alternative radiopharmaceutical for the liver spleen scintigraphy within the nuclear medicine. The laser diffraction (LD) and X ray diffraction (XRD) analysis showed that these particles were at nano scale and had beta' polymorph structure, respectively. It was observed that there was no interaction between the solid lipid and the surfactant molecules by fourier transform infrared spectroscopy (FT-IR). The scanning electron microscope (SEM) and transmission electron microscopy (TEM) images were taken and seen that the SLNs were spherical and at nano scale. Thermogravimetric analysis (TGA) for stability confirmed that they were stable for temperature variations. In the second stage of the study, the SLNs were successfully labeled with 99mTc. The radiolabeling efficiency was found to be greater than %95 and in vivo studies were performed on experimental rabbits using scintigraphic methods. When the obtained images were examined, the uptake was observed in the heart, the lungs, the liver, and the spleen. It was concluded that SLNs labeled with 99mTc could be a selective imaging agent. It was asserted to be a new radiopharmaceutical, especially as an alternative to the 99mTc-labeled compounds used in the liver and spleen imaging in colloid scintigraphy. PMID- 29337490 TI - PEG-Poly(amino acid)s/MicroRNA Complex Nanoparticles Effectively Arrest the Growth and Metastasis of Colorectal Cancer. AB - One of the biggest challenges in developing microRNA (miRNA) based therapeutics is the method of delivery. Herein we report the design and synthesis of mPEG poly(amino acid)s, which we used as a novel nanocarrier for the delivery of miRNA 139-5p. The PEG-poly(amino acid)s/miRNA-139-5p nanoparticle complex is more effective at suppressing tumor growth and migration in mice with colorectal cancer than when treated with miRNA-139-5p solution and blank nanoparticles individually. Our results suggest that PEG-poly(amino acid)s are a promising non viral gene vector for the delivery of miRNAs to treat cancers. PMID- 29337491 TI - Gold Nanocrystals with Well-Defined Crystallographic {111} Facets Suppress Pathological Neovascularization. AB - Vascular endothelial growth factor (VEGF) is a main factor in pathological neovascularization in various human diseases including age-related macular degeneration, cancer, and diabetic complications. Interestingly, gold nanospheres are known to bind to VEGF and to suppress VEGF-mediated angiogenesis. The anti angiogenic effects are known to be governed by the size and surface charge of the nanoparticles. However, studies on the role of the shape in biological actions are limited. In this study, we investigate the anti-angiogenic properties of nanocrystals that have well-defined crystallographic {111} facets. Single crystalline icosahedral and octahedral gold nanocrystals effectively scavenge VEGF just as nanospheres with similar diameter. In addition, they suppress the in vitro VEGF-induced activation of the VEGF receptor and the proliferation of endothelial cells. They also significantly inhibit in vivo VEGF-mediated retinal vascular permeability. These results thus suggest that gold nanocrystals with {111} facets can provide a useful platform for nanoparticle-based treatment of VEGF-driven pathological neovascularization beyond their current optical and catalytic applications. PMID- 29337492 TI - Nanoparticle-Based Mucosal Vaccines Targeting Tumor-Associated Antigens to Human Dendritic Cells. AB - The induction of effective T cell-mediated immune responses is the main objective of vaccination against cancer. T cell responses are initiated by dendritic cells (DCs) as the most potent antigen-presenting cells. Designing vaccines for efficient delivery of tumor antigens to these cells in immunogenic fashion is, therefore, a major task in tumor immunology. In this human-based in vitro study we investigated the suitability of different polymeric nanoparticles (NPs) for delivering the tumor-associated antigen Her2/neu to DCs for induction of T cell responses by mucosal vaccination. The natural polymer chitosan and novel functionalized PLGA-based polymers were used for NP production. All NPs were efficiently taken up by DCs. Her2/neu delivered by NPs was more efficiently processed and presented by DCs than the soluble protein and induced more vigorous CD4+ and CD8+ T cell proliferation, and cytotoxic T cells. Testing the suitability of this platform for mucosal vaccination, NPs were applied to the apical side of an intestinal epithelium model and found to be efficiently transported across the epithelial layer to become available to basolateral DCs. Thus, chitosan and PLGA-based NPs are efficient carriers for delivery of antigens to DCs for induction of T cell-based immunity, and suitable for mucosal vaccine formulations. PMID- 29337493 TI - Cellular Internalization Mechanisms of Polyanhydride Particles: Implications for Rational Design of Drug Delivery Vehicles. AB - Polyanhydride nanoparticles have emerged as a versatile delivery platform, due to their ability to encapsulate diverse drugs, immunogens, antibodies, and proteins. However, mechanistic studies on the effects of particle chemistry interactions with immune cells have yet to be described. Understanding the mechanism by which these particles are internalized by immune cells will enable rational selection of delivery vehicles for specific applications. In the present study, the internalization, mechanism(s) of uptake by monocytes, and intracellular fate of polyanhydride nanoparticles were evaluated using copolymers based on 1,6-bis(p carboxyphenoxy)hexane (CPH), sebacic acid (SA), and 1,8-bis(p-carboxyphenoxy)3,6 dioxaoctane (CPTEG). The results showed that 20:80 CPH:SA and 20:80 CPTEG:CPH nanoparticles were internalized to a greater extent by monocytes as compared to the 50:50 CPH:SA and 50:50 CPTEH:CPH nanoparticles. Further, cytochalasin-D treatment of cells inhibited uptake of all the particles, regardless of chemistry, indicating that actinmediated uptake is the primary mechanism of cellular entry for these particles. The insights gained from these studies were used to identify lead nanoparticle formulations to enhance treatment of intracellular bacterial infections. The use of doxycycline-loaded nanoparticles exhibited enhanced therapeutic efficacy compared to soluble drug in treating monocyte monolayers infected with the virulent intracellular pathogen Brucella abortus. Altogether, these studies demonstrate how rational design and selection of nanoscale delivery platforms can be used for a wide spectrum of biomedical applications. PMID- 29337526 TI - Carbon Nanotube Web with Carboxylated Polythiophene "Assist" for High-Performance Battery Electrodes. AB - A carbon nanotube (CNT) web electrode comprising magnetite spheres and few-walled carbon nanotubes (FWNTs) linked by the carboxylated conjugated polymer, poly[3 (potassium-4-butanoate) thiophene] (PPBT), was designed to demonstrate benefits derived from the rational consideration of electron/ion transport coupled with the surface chemistry of the electrode materials components. To maximize transport properties, the approach introduces monodispersed spherical Fe3O4 (sFe3O4) for uniform Li+ diffusion and a FWNT web electrode frame that affords characteristics of long-ranged electronic pathways and porous networks. The sFe3O4 particles were used as a model high-capacity energy active material, owing to their well-defined chemistry with surface hydroxyl (-OH) functionalities that provide for facile detection of molecular interactions. PPBT, having a pi conjugated backbone and alkyl side chains substituted with carboxylate moieties, interacted with the FWNT pi-electron-rich and hydroxylated sFe3O4 surfaces, which enabled the formation of effective electrical bridges between the respective components, contributing to efficient electron transport and electrode stability. To further induce interactions between PPBT and the metal hydroxide surface, polyethylene glycol was coated onto the sFe3O4 particles, allowing for facile materials dispersion and connectivity. Additionally, the introduction of carbon particles into the web electrode minimized sFe3O4 aggregation and afforded more porous FWNT networks. As a consequence, the design of composite electrodes with rigorous consideration of specific molecular interactions induced by the surface chemistries favorably influenced electrochemical kinetics and electrode resistance, which afforded high-performance electrodes for battery applications. PMID- 29337527 TI - Firefly-like Water Splitting Cells Based on FRET Phenomena with Ultrahigh Performance over 12. AB - A firefly-like chemiluminescence reaction was utilized in a ZrO2 nanoparticle matrix of water splitting cells, where the chlorophyll of Lantana camara was used as the major photosensitizer to excite electrons to the conduction band of ZrO2. The fluorescence resonance energy transfer (FRET) was induced by rubrene, a firefly-like chemiluminescence molecule, and Lantana camara chlorophyll combined with 9,10-diphenylanthracene. The ZrO2 nanoparticle film coated by the chlorophyll of Lantana camara and 9,10-diphenylanthracene under chemiluminescence irradiation in 1 M KHCO3 water solution demonstrated the highest photocurrent density (88.1 A/m2) and the highest water splitting efficiency (12.77%). PMID- 29337528 TI - Directed Self-Assembly of Dipeptide Single Crystal in a Capillary. AB - Controlled growth of one-dimensional nanostructures is playing a key role in creating types of materials for functional devices. Here, we report procedures for controlled assembly of the dipeptide diphenylalanine (FF) into aligned and ultralong single crystals in a capillary. With the evaporation of solvent, nucleation of the crystal occurred in the confined region, and the crystal grew continuously with a supply of molecules from the concentration gradient system inside the capillary. Based on the "Knudsen regime", an ultralong aligned individual FF single crystal possessing an active optical waveguide property at macroscopic length scale could be obtained. Moreover, capillary is also an effective microdevice to investigate the disassembly process of the FF single crystals. This strategy has potentials to broaden the range of applications of aligned organic nanomaterials. PMID- 29337530 TI - Label-Free and Ultrasensitive Biomolecule Detection Based on Aggregation Induced Emission Fluorogen via Target-Triggered Hemin/G-Quadruplex-Catalyzed Oxidation Reaction. AB - Fluorescence biosensing strategy has drawn substantial attention due to their advantages of simplicity, convenience, sensitivity, and selectivity, but unsatisfactory structure stability, low fluorescence quantum yield, high cost of labeling, and strict reaction conditions associated with current fluorescence methods severely prohibit their potential application. To address these challenges, we herein propose an ultrasensitive label-free fluorescence biosensor by integrating hemin/G-quadruplex-catalyzed oxidation reaction with aggregation induced emission (AIE) fluorogen-based system. l-Cysteine/TPE-M, which is carefully and elaborately designed and developed, obviously contributes to strong fluorescence emission. In the presence of G-rich DNA along with K+ and hemin, efficient destruction of l-cysteine occurs due to hemin/G-quadruplex-catalyzed oxidation reactions. As a result, highly sensitive fluorescence detection of G rich DNA is readily realized, with a detection limit down to 33 pM. As a validation for the further development of the proposed strategy, we also successfully construct ultrasensitive platforms for microRNA by incorporating the l-cysteine/TPE-M system with target-triggered cyclic amplification reaction. Thus, this proposed strategy is anticipated to find use in basic biochemical research and clinical diagnosis. PMID- 29337529 TI - Glutathione-Capped Ag2S Nanoclusters Inhibit Coronavirus Proliferation through Blockage of Viral RNA Synthesis and Budding. AB - Development of novel antiviral reagents is of great importance for the control of virus spread. Here, Ag2S nanoclusters (NCs) were proved for the first time to possess highly efficient antiviral activity by using porcine epidemic diarrhea virus (PEDV) as a model of coronavirus. Analyses of virus titers showed that Ag2S NCs significantly suppressed the infection of PEDV by about 3 orders of magnitude at the noncytotoxic concentration at 12 h postinfection, which was further confirmed by the expression of viral proteins. Mechanism investigations indicated that Ag2S NCs treatment inhibits the synthesis of viral negative-strand RNA and viral budding. Ag2S NCs treatment was also found to positively regulate the generation of IFN-stimulating genes (ISGs) and the expression of proinflammation cytokines, which might prevent PEDV infection. This study suggest the novel underlying of Ag2S NCs as a promising therapeutic drug for coronavirus. PMID- 29337531 TI - Branched Glycerol-Based Copolymer with Ultrahigh p65 siRNA Delivery Efficiency for Enhanced Cancer Therapy. AB - The small interfering RNA (siRNA) is emerging as a potential therapeutic for the treatment of various diseases because of the targeted gene silencing capability. The suppression of p65 expression has shown great potential in various cancer treatments. However, various substantial obstacles limit its clinical applications, including low cellular uptake, instability, and cytotoxicity of delivery vehicles. We show a highly branched and biocompatible glycerol-based copolymer (HBGC) to effectively deliver siRNA for excellent p65 gene silencing and safe lung cancer treatment in vitro and in vivo. HBGCs could be synthesized through a facile and modular one-spot Michael addition. HBGCs effectively protect siRNA in serum, enhance cellular uptake of siRNA, and show negligible cytotoxicity in various cells (A549, HeLa, HepG2, and C2C12). Additionally, the HBGC-siRNA complex potently downregulates the p65 expression in A549 cancer cells (almost the highest value of 96% in reported references) and enhances the cellular apoptosis compared to that of commercial transfection agents polyethyleneimine 25 kDa and Lipofectamine 2000. The HBGC-siRNA complex demonstrated significantly increased accumulation in the tumor sites and enhanced downregulation of p65 gene and cancer cell apoptosis. Furthermore, the tumor growth could be significantly inhibited in a subcutaneous lung tumor model with negligible adverse effects. PMID- 29337532 TI - Biotemplated Morpho Butterfly Wings for Tunable Structurally Colored Photocatalysts. AB - Morpho sulkowskyi butterfly wings contain naturally occurring hierarchical nanostructures that produce structural coloration. The high aspect ratio and surface area of these wings make them attractive nanostructured templates for applications in solar energy and photocatalysis. However, biomimetic approaches to replicate their complex structural features and integrate functional materials into their three-dimensional framework are highly limited in precision and scalability. Herein, a biotemplating approach is presented that precisely replicates Morpho nanostructures by depositing nanocrystalline ZnO coatings onto wings via low-temperature atomic layer deposition (ALD). This study demonstrates the ability to precisely tune the natural structural coloration while also integrating multifunctionality by imparting photocatalytic activity onto fully intact Morpho wings. Optical spectroscopy and finite-difference time-domain numerical modeling demonstrate that ALD ZnO coatings can rationally tune the structural coloration across the visible spectrum. These structurally colored photocatalysts exhibit an optimal coating thickness to maximize photocatalytic activity, which is attributed to trade-offs between light absorption and catalytic quantum yield with increasing coating thickness. These multifunctional photocatalysts present a new approach to integrating solar energy harvesting into visually attractive surfaces that can be integrated into building facades or other macroscopic structures to impart aesthetic appeal. PMID- 29337533 TI - Localized Fe(II)-Induced Cytotoxic Reactive Oxygen Species Generating Nanosystem for Enhanced Anticancer Therapy. AB - The anticancer therapy on the basis of reactive oxygen species (ROS)-mediated cellular apoptosis has achieved great progress. However, this kind of theraputic strategy still faces some challenges such as light, photosensitizer and oxygen (O2) dependence. In this article, a ROS-mediated anticancer therapy independent of light, photosensitizer and oxygen was established based on a Fe2+-induced ROS generating nanosystem. First, artemisinin (ART) was loaded in porous magnetic supraparticles (MSP) by a nanodeposition method. Then, the poly(aspartic acid) based polymer, which consisted of dopamine, indocyanine green, and polyethylene glycol side chain, was coated onto the surface of ART-loaded MSP. When the nanoparticles entered into cancer cells, a reaction of Fe2+-mediated cleavage of the endoperoxide bridge contained in ART occurred and subsequent a large amount of ROS was generated. Moreover, a NIR light was used to effectively increase the local temperature of tumor in virtue of the superior photothermal effects of MSP, which enabled us to accelerate the ROS generation and achieved an enhanced ROS yield. The newly developed nanodrug system displayed a high level of intracellular ROS generation, leading to the desired killing efficacy against malignant cells and solid tumor. This smart nanosystem holds great potential to overcome the existing barrier in PDT and opens a promising avenue for anticancer therapy. PMID- 29337534 TI - Highly Luminescent Encapsulated Narrow Bandgap Polymers Based on Diketopyrrolopyrrole. AB - We present the synthesis and characterization of a series of encapsulated diketopyrrolopyrrole red-emitting conjugated polymers. The novel materials display extremely high fluorescence quantum yields in both solution (>70%) and thin film (>20%). Both the absorption and emission spectra show clearer, more defined features compared to their naked counterparts demonstrating the suppression of inter and intramolecular aggregation. We find that the encapsulation results in decreased energetic disorder and a dramatic increase in backbone colinearity as evidenced by scanning tunnelling microscopy. This study paves the way for diketopyrrolopyrrole to be used in emissive solid state applications and demonstrates a novel method to reduce structural disorder in conjugated polymers. PMID- 29337535 TI - Anion-Mediated Photophysical Behavior in a C60 Fullerene [3]Rotaxane Shuttle. AB - By addressing the challenge of controlling molecular motion, mechanically interlocked molecular machines are primed for a variety of applications in the field of nanotechnology. Specifically, the designed manipulation of communication pathways between electron donor and acceptor moieties that are strategically integrated into dynamic photoactive rotaxanes and catenanes may lead to efficient artificial photosynthetic devices. In this pursuit, a novel [3]rotaxane molecular shuttle consisting of a four-station bis-naphthalene diimide (NDI) and central C60 fullerene bis-triazolium axle component and two mechanically bonded ferrocenyl-functionalized isophthalamide anion binding site-containing macrocycles is constructed using an anion template synthetic methodology. Dynamic coconformational anion recognition-mediated shuttling, which alters the relative positions of the electron donor and acceptor motifs of the [3]rotaxane's macrocycle and axle components, is demonstrated initially by 1H NMR spectroscopy. Detailed steady-state and time-resolved UV-vis-IR absorption and emission spectroscopies as well as electrochemical studies are employed to further probe the anion-dependent positional macrocycle-axle station state of the molecular shuttle, revealing a striking on/off switchable emission response induced by anion binding. Specifically, the [3]rotaxane chloride coconformation, where the ferrocenyl-functionalized macrocycles reside at the center of the axle component, precludes electron transfer to NDI, resulting in the switching-on of emission from the NDI fluorophore and concomitant formation of a C60 fullerene-based charge-separated state. By stark contrast, in the absence of chloride as the hexafluorophosphate salt, the ferrocenyl-functionalized macrocycles shuttle to the peripheral NDI axle stations, quenching the NDI emission via formation of a NDI-containing charge-separated state. Such anion-mediated control of the photophysical behavior of a rotaxane through molecular motion is unprecedented. PMID- 29337536 TI - Correction to "Adaptation in Constitutional Dynamic Libraries and Networks, Switching between Orthogonal Metalloselection and Photoselection Processes". PMID- 29337537 TI - Microplastic Effect Thresholds for Freshwater Benthic Macroinvertebrates. AB - Now that microplastics have been detected in lakes, rivers, and estuaries all over the globe, evaluating their effects on biota has become an urgent research priority. This is the first study that aims at determining the effect thresholds for a battery of six freshwater benthic macroinvertebrates with different species traits, using a wide range of microplastic concentrations. Standardized 28 days single species bioassays were performed under environmentally relevant exposure conditions using polystyrene microplastics (20-500 MUm) mixed with sediment at concentrations ranging from 0 to 40% sediment dry weight (dw). Microplastics caused no effects on the survival of Gammarus pulex, Hyalella azteca, Asellus aquaticus, Sphaerium corneum, and Tubifex spp. and no effects were found on the reproduction of Lumbriculus variegatus. No significant differences in growth were found for H. azteca, A. aquaticus, S. corneum, L. variegatus, and Tubifex spp. However, G. pulex showed a significant reduction in growth (EC10 = 1.07% sediment dw) and microplastic uptake was proportional with microplastic concentrations in sediment. These results indicate that although the risks of environmentally realistic concentrations of microplastics may be low, they still may affect the biodiversity and the functioning of aquatic communities which after all also depend on the sensitive species. PMID- 29337538 TI - Sustainable Polyester Elastomers from Lactones: Synthesis, Properties, and Enzymatic Hydrolyzability. AB - Chemically cross-linked elastomers are an important class of polymeric materials with excellent temperature and solvent resistance. However, nearly all elastomers are petroleum-derived and persist in the environment or in landfills long after they are discarded; this work strives to address these issues by demonstrating the synthesis of renewable, enzymatically hydrolyzable, and mechanically competitive polyester elastomers. The elastomers described were synthesized using a novel bis(beta-lactone) cross-linker and star-shaped, hydroxyl-terminated poly(gamma-methyl-epsilon-caprolactone). Using model compounds, we determined that the bis(beta-lactone) cross-linker undergoes acyl bond cleavage to afford beta-hydroxyesters at the junctions. The mechanical properties of the cross linked materials were tunable and competitive with a commodity rubber band. Furthermore, the elastomers demonstrated high thermal stability and a low glass transition (-50 degrees C), indicating a wide range of use temperatures. The polyester networks were also subjected to enzymatic hydrolysis experiments to investigate the potential for these materials to biodegrade in natural environments. We found that they readily hydrolyzed at neutral pH and environmentally relevant temperatures (2-40 degrees C); complete hydrolysis was achieved in all cases at temperature-dependent rates. The results presented in this work exemplify the development of high performance yet sustainable alternatives to conventional elastomers. PMID- 29337539 TI - A Comparative IRMPD and DFT Study of Fe3+ and UO22+ Complexation with N Methylacetohydroxamic Acid. AB - Iron(III) and uranyl complexes of N-methylacetohydroxamic acid (NMAH) have been investigated by mass spectrometry, infrared multiphoton dissociation (IRMPD) spectroscopy, and density functional theory (DFT) calculations. A comparison between IRMPD and theoretical IR spectra enabled one to probe the structures for some selected complexes detected in the gas phase. The results show that coordination of Fe3+ and UO22+ by hydroxamic acid is of a very similar nature. Natural bond orbital analysis suggests that bonding in uranyl complexes possesses a slightly stronger ionic character than that in iron complexes. Collision induced dissociation (CID), IRMPD, and 18O-labeling experiments unambiguously revealed a rare example of the U?O bond activation concomitant with the elimination of a water molecule from the gaseous [UO2(NMA)(NMAH)2]+ complex. The U?O bond activation is observed only for complexes with one monodentate NMAH molecule forming a hydrogen bond toward one "yl" oxygen atom, as was found by DFT calculations. This reactivity might explain oxygen exchange observed for uranyl complexes. PMID- 29337540 TI - Enhanced Degradation of Pesticide Dichlorophen by Laccase Immobilized on Nanoporous Materials: A Cytotoxic and Molecular Simulation Investigation. AB - Use of pesticides is usually related to overproduction of crops in order to overcome worldwide demand of food and alimentary safety. Nevertheless, pesticides are environmental persistent molecules, such as the organochlorine pesticides, which are often found in undesired places. In this work, we show that a hybrid nanomaterial (laccase-MSU-F) readily oxidizes the pesticide dichlorophen, reducing its acute genotoxicity and apoptotic effects. In order to predict chronic alterations related to endocrine disruption, we compared the calculated affinity of dichlorophen oxidized subproducts to steroid hormone nuclear receptors (NRs), using molecular simulation methods. We found a reduction in theoretical affinity of subproducts of oxidized dichlorophen for the ligand binding pocket of NRs (~5 kcal/mol), likewise of changes in binding modes, that suggests a reduction in binding events (RMSD values < 10 A). PMID- 29337541 TI - Enzyme Architecture: The Role of a Flexible Loop in Activation of Glycerol-3 phosphate Dehydrogenase for Catalysis of Hydride Transfer. AB - The side chain of Q295 of glycerol-3-phosphate dehydrogenase from human liver ( hlGPDH) lies in a flexible loop, that folds over the phosphodianion of substrate dihydroxyacetone phosphate (DHAP). Q295 interacts with the side-chain cation from R269, which is ion-paired to the substrate phosphodianion. Kinetic parameters kcat/ Km (M-1 s-1) and kcat/ KGA KHPi (M-2 s-1) were determined, respectively, for catalysis of the reduction of DHAP and for dianion activation of catalysis of reduction of glycolaldehyde (GA) catalyzed by wild-type, Q295G, Q295S, Q295A, and Q295N mutants of hlGPDH. These mutations result in up to a 150-fold decrease in ( kcat/ Km)DHAP and up to a 2.7 kcal/mol decrease in the intrinsic phosphodianion binding energy. The data define a linear correlation with slope 1.1, between the intrinsic phosphodianion binding energy and the intrinsic phosphite dianion binding energy for activation of hlGPDH-catalyzed reduction of GA, that demonstrates a role for Q295 in optimizing this dianion binding energy. The R269A mutation of wild-type GPDH results in a 9.1 kcal/mol destabilization of the transition state for reduction of DHAP, but the same R269A mutation of N270A and Q295A mutants result in smaller 5.9 and 4.9 kcal/mol transition-state destabilization. Similarly, the N270A or Q295A mutations of R269A GPDH each result in large falloffs in the efficiency of rescue of the R269A mutant by guanidine cation. We conclude that N270, which interacts for the substrate phosphodianion and Q295, which interacts with the guanidine side chain of R269, function to optimize the apparent transition-state stabilization provided by the cationic side chain of R269. PMID- 29337542 TI - A Domino Process toward Functionally Dense Quaternary Carbons through Pd Catalyzed Decarboxylative C(sp3)-C(sp3) Bond Formation. AB - An efficient protocol was developed to construct functionally dense quaternary carbons with concomitant formation of a new Csp3-Csp3 bond via Pd-catalyzed decarboxylative transformation of vinyl cyclic carbonates. This redox-neutral catalytic system features stereocontrolled formation of multisubstituted allylic scaffolds with an aldehyde functionality generated in situ, and it typically can be performed at room temperature without any additives. DFT calculations provide a rationale toward the selective formation of these compounds and reveal a complex mechanism that with the help of microkinetic models is able to reproduce the nontrivial dependence of the identity of the product on the nature of the substituents in the substrate. PMID- 29337544 TI - Pushing up the Size Limit of Metal Chalcogenide Supertetrahedral Nanocluster. AB - The cubic ZnS structure type and the size-dependent properties of related nanoparticles are of both fundamental and technological importance. Yet, it remains a challenge to synthesize large atom-precise clusters of this structure type. Currently, only supertetrahedral clusters with 4, 10, 20, and 35 metal sites (denoted as T2, T3, T4, and T5, respectively) are known. Because the synthesis of T5 in 2002, numerous synthetic efforts targeting larger clusters only resulted in T2-T5 clusters in various compositions and intercluster connectivity, with T6 (56 metal and 84 anion sites) being elusive. Here, we report the so-far largest supertetrahedral cluster (T6, [Zn25In31S84]25-). New T6 clusters can serve as the host matrix for optically active centers. Mn-doped variants of T4 and T6 have also been made, allowing the investigation of site dependent Mn emission. The results lead to the elucidation of the mechanism regulating Mn emission via size-dependent crystal lattice strain and provide new insight into Mn-doping chemistry in cluster-based chalcogenides at the atomic level. PMID- 29337545 TI - Donor Engineering for NIR-II Molecular Fluorophores with Enhanced Fluorescent Performance. AB - Organic fluorophores have been widely used for biological imaging in the visible and the first near-infrared windows. However, their application in the second near-infrared window (NIR-II, 1000-1700 nm) is still limited mainly due to low fluorescence quantum yields (QYs). Here, we explore molecular engineering on the donor unit to develop high performance NIR-II fluorophores. The fluorophores are constructed by a shielding unit-donor(s)-acceptor-donor(s)-shielding unit structure. Thiophene is introduced as the second donor connected to the shielding unit, which can increase the conjugation length and red-shift the fluorescence emission. Alkyl thiophene is employed as the first donor connected to the acceptor unit. The bulky and hydrophobic alkyl thiophene donor affords larger distortion of the conjugated backbone and fewer interactions with water molecules compared to other donor units studied before. The molecular fluorophore IR-FTAP with octyl thiophene as the first donor and thiophene as the second donor exhibits fluorescence emission peaked at 1048 nm with a QY of 5.3% in aqueous solutions, one of the highest for molecular NIR-II fluorophore reported so far. Superior temporal and spatial resolutions have been demonstrated with IR-FTAP fluorophore for NIR-II imaging of the blood vessels of a mouse hindlimb. PMID- 29337547 TI - Calix[n]arene-Catalyzed Three-Component Povarov Reaction: Microwave-Assisted Synthesis of Julolidines and Mechanistic Insights. AB - A new one-pot cascade reaction-based application of Povarov reactions with a p sulfonic acid calix[4]arene catalyst for the synthesis of a series of 34 julolidine derivatives with substituents at C8 or C9 in good to excellent yields is reported. These microwave-assisted reactions proceeded efficiently, had short reaction times, were metal-free, were low cost, and used an inexpensive, easily available and nontoxic catalyst. These advantages, along with a simple workup procedure, make this protocol a very efficient and green alternative to the traditional methods for constructing these types of N-heterocyclic skeletons. In addition, this protocol allows the formation of julolidine structures, which requires the construction of four new C-C bonds and two C-N bonds. A mechanism for the Povarov reaction involving a stepwise sequence via ionic intermediates was proposed and validated. PMID- 29337543 TI - Bright Side of Lignin Depolymerization: Toward New Platform Chemicals. AB - Lignin, a major component of lignocellulose, is the largest source of aromatic building blocks on the planet and harbors great potential to serve as starting material for the production of biobased products. Despite the initial challenges associated with the robust and irregular structure of lignin, the valorization of this intriguing aromatic biopolymer has come a long way: recently, many creative strategies emerged that deliver defined products via catalytic or biocatalytic depolymerization in good yields. The purpose of this review is to provide insight into these novel approaches and the potential application of such emerging new structures for the synthesis of biobased polymers or pharmacologically active molecules. Existing strategies for functionalization or defunctionalization of lignin-based compounds are also summarized. Following the whole value chain from raw lignocellulose through depolymerization to application whenever possible, specific lignin-based compounds emerge that could be in the future considered as potential lignin-derived platform chemicals. PMID- 29337546 TI - A Mitochondria-Specific Fluorescent Probe for Visualizing Endogenous Hydrogen Cyanide Fluctuations in Neurons. AB - An ability to visualize HCN in mitochondria in real time may permit additional insights into the critical toxicological and physiological roles this classic toxin plays in living organisms. Herein, we report a mitochondria-specific coumarin pyrrolidinium-derived fluorescence probe (MRP1) that permits the real time ratiometric imaging of HCN in living cells. The response is specific, sensitive (detection limit is ca. 65.6 nM), rapid (within 1 s), and reversible. Probe MRP1 contains a benzyl chloride subunit designed to enhance retention within the mitochondria under conditions where the mitochondria membrane potential is eliminated. It has proved effective in visualizing different concentrations of exogenous HCN in the mitochondria of HepG2 cells, as well as the imaging of endogenous HCN in the mitochondria of PC12 cells and within neurons. Fluctuations in HCN levels arising from the intracellular generation of HCN could be readily detected. PMID- 29337548 TI - RE[N(SiMe3)2]3-Catalyzed Guanylation/Cyclization of Amino Acid Esters and Carbodiimides. AB - The example of rare-earth metal-catalyzed guanylation/cyclization of amino acid esters and carbodiimides is well-established, forming 4(3H)-2 alkylaminoquinazolinones in 65-96% yields. The rare-earth metal amides RE[N(TMS)2]3 (RE = Y, Yb, Nd, Sm, La; TMS = SiMe3) showed high activities, and La[N(TMS)2]3 performed best for a wide scope of the substrates. PMID- 29337549 TI - Increasing the Ambient Pressure Solubility by Forming a Glass at High Pressure and Its Thermodynamics, a Much Sought-After Pharmaceutical Advantage. AB - With the objective of increasing the bioavailability of poorly soluble curative compounds, we describe a thermodynamics-based method for increasing their solubility, sigma. It requires forming their pressure-densified glassy (PDG) state by supercooling the melt under a high pressure to form glass, depressurizing, and recovering the glass at a low temperature. First, we formally show that the excess free energy of PDG is higher at ambient pressure than that of a glass (normally) formed by supercooling the melt at ambient pressure (NG), and therefore its sigma will be higher. For a given compound, sigma would increase with the pressure under which the liquid is cooled to form PDG and also with increase in the cooling rate. Second, we propose that this increase may be determined by using differential scanning calorimetry heating scans and, more accurately and directly, by vapor pressure measurement. Analysis of calorimetry data of poly(styrene) shows that the magnitude of increase in sigma is considerable and is expected to be much higher for curative compounds. Since sigma is related to vapor pressure through the free energy change, and to the dissolution rate, Gamma, the PDG state a compound would not only sublimate rapidly but also dissolve rapidly. We discuss the stability of PDG relative to NG against structural relaxation and crystallization and, hence, of their bioavailability with time. PMID- 29337550 TI - Palladium-Catalyzed Oxidative Cross-Coupling of Arylhydrazines and Arenethiols with Molecular Oxygen as the Sole Oxidant. AB - A highly efficient palladium-catalyzed oxidative cross-coupling of arylhydrazines and arenethiols with molecular oxygen as the sole oxidant to afford unsymmetrical diaryl sulfides has been developed. The only byproducts are nitrogen and water. A broad range of functional groups, even the reactive iodides, are tolerated and thus offer the opportunity for further functionalization. PMID- 29337551 TI - Synthesis of Polycyclic delta-Lactams with Bridged Benzomorphan Skeleton: Selectivity and Diversity Driven by Substituents. AB - An efficient synthesis of bromofunctionalized 2,6-methano- and 1,5-methano benzomorphanones, starting from easily available 6-benzyl-3,6-dihydropyridin 2(1H)-ones, is described. Furthermore, the synthesis of bridged benzomorphanones with hitherto not known polycyclic systems containing 2- or 3 azabicyclo[4.1.0]heptane units is developed upon treatment of both 2,6- and 1,5 methanobromobenzomorphans with t-BuOK. The effects of substituents on the diversity and stereoselectivity of both transformations are studied. PMID- 29337552 TI - Molecular Dynamics Simulations of the Oil-Detachment from the Hydroxylated Silica Surface: Effects of Surfactants, Electrostatic Interactions, and Water Flows on the Water Molecular Channel Formation. AB - The detachment process of an oil molecular layer situated above a horizontal substrate was often described by a three-stage process. In this mechanism, the penetration and diffusion of water molecules between the oil phase and the substrate was proposed to be a crucial step to aid in removal of oil layer/drops from substrate. In this work, the detachment process of a two-dimensional alkane molecule layer from a silica surface in aqueous surfactant solutions is studied by means of molecular dynamics (MD) simulations. By tuning the polarity of model silica surfaces, as well as considering the different types of surfactant molecules and the water flow effects, more details about the formation of water molecular channel and the expansion processes are elucidated. It is found that for both ionic and nonionic type surfactant solutions, the perturbation of surfactant molecules on the two-dimensional oil molecule layer facilitates the injection and diffusion of water molecules between the oil layer and silica substrate. However, the water channel formation and expansion speed is strongly affected by the substrate polarity and properties of surfactant molecules. First, only for the silica surface with relative stronger polarity, the formation of water molecular channel is observed. Second, the expansion speed of the water molecular channel upon the ionic surfactant (dodecyl trimethylammonium bromide, DTAB and sodium dodecyl benzenesulfonate, SDBS) flooding is more rapidly than the nonionic surfactant system (octylphenol polyoxyethylene(10) ether, OP-10). Third, the water flow speed may also affect the injection and diffusion of water molecules. These simulation results indicate that the water molecular channel formation process is affected by multiple factors. The synergistic effects of perturbation of surfactant molecules and the electrostatic interactions between silica substrate and water molecules are two key factors aiding in the injection and diffusion of water molecules and helpful for the oil detachment from silica substrate. PMID- 29337553 TI - Selective Construction of 2-Substituted Benzothiazoles from o-Iodoaniline Derivatives S8 and N-Tosylhydrazones. AB - Selective construction of 2-substituted benzothiazoles from o-iodoaniline derivatives S8 and N-tosylhydrazone via a copper-promoted [3 + 1 + 1]-type cyclization reaction has been realized. In the protocol, the carbon atom on N tosylhydrazone could be regulated to construct benzothiazole by changing the reaction system. Furthermore, the transformation has achieved the construction of multiple carbon-heteroatom bonds. PMID- 29337554 TI - Light-Induced Deformation of Azobenzene-Containing Colloidal Spheres: Calculation and Measurement of Opto-Mechanical Stresses. AB - We report on light-induced deformation of colloidal spheres consisting of azobenzene-containing polymers. The colloids of the size between 60 nm and 2 MUm in diameter were drop casted on a glass surface and irradiated with linearly polarized light. It was found that colloidal particles can be deformed up to ca. 6 times of their initial diameter. The maximum degree of deformation depends on the irradiation wavelength and intensity, as well as on colloidal particles size. On the basis of recently proposed theory by Toshchevikov et al. [ J. Phys. Chem. Lett. 2017 , 8 , 1094 ], we calculated the opto-mechanical stresses (ca. 100 MPa) needed for such giant deformations and compared them with the experimental results. PMID- 29337555 TI - Reconsideration of the Detection and Fluorescence Mechanism of a Pyrene-Based Chemosensor for TNT. AB - The rapid detection of chemical explosives is crucial for national security and public safety, and the investigation of sensing mechanisms is important for designing highly efficient chemosensors. This study theoretically investigates the detection and fluorescence mechanism of a newly synthesized pyrene-based chemosensor for the detection of trinitrotoluene (TNT) through density-functional theory (DFT) and time-dependent density-functional-theory (TDDFT) methods and suggests a different interaction product of the probe and TNT from previously reported ones [ Mosca et al. J. Am. Chem. Soc. 2015 , 137 , 7967 ]. Instead of forming Meisenheimer complexes, the energies of which are beyond those of the reactants, a low-energy product generated by a pi-pi-stacking interaction is more rational and favorable. The fluorescence-quenching property further confirms that the pi-pi-stacking product is the predicted one rather than luminescent Meisenheimer complexes. Frontier-molecular-orbital (FMO)-analysis results show that photoinduced electron transfer (PET) is the mechanism underlying the luminescence quenching of the probe upon exposure to TNT. PMID- 29337556 TI - Organocatalyzed Asymmetric Vinylogous Addition of Oxazole-2(3H)-thiones to alpha,beta-Unsaturated Ketones: An Additive-Free Approach for Diversification of Heterocyclic Scaffold. AB - A straightforward organocatalyzed asymmetric addition of oxazole-2(3H)-thiones to alpha,beta-unsaturated ketones is described. This additive-free Michael reaction in the presence of chiral cinchonine-derived primary amines as catalysts has proven to be highly effective for a wide range of cyclic and acyclic enones, leading to the Michael adducts in very good yields and excellent enantioselectivities. The absolute configuration (R) of compound 5j was unambiguously assigned by X-ray diffraction analysis. Furthermore, experimental and theoretical studies were performed and a mechanism is presented and discussed for this novel reaction. PMID- 29337557 TI - Pair Interaction Energy Decomposition Analysis for Density Functional Theory and Density-Functional Tight-Binding with an Evaluation of Energy Fluctuations in Molecular Dynamics. AB - Pair interaction energy decomposition analysis in the fragment molecular orbital (FMO) method is extended to treat density functional theory (DFT) and density functional tight-binding (DFTB). Fluctuations of energy contributions are obtained from molecular dynamics simulations. Interactions at the DFT and DFTB levels are compared to the values obtained with Hartree-Fock, second-order Moller Plesset (MP2), and coupled cluster methods. Hydrogen bonding in water clusters is analyzed. 200 ps NVT molecular dynamics simulations are performed with FMO for two ligands bound to the Trp-cage miniprotein (PDB 1L2Y ); the fluctuations of fragment energies and interactions are analyzed. PMID- 29337558 TI - Spatial Isolation of Conformational Isomers of Hydroquinone and Its Water Cluster Using the Stark Deflector. AB - Conformational isomers of hydroquinone and their 1:1 clusters with water have been spatially separated using a Stark deflector in a supersonic jet. trans Hydroquinone (HyQ) conformer with zero dipole moment is little influenced by inhomogeneous electric fields, whereas cis conformer with nonzero dipole moment (2.38 D) is significantly deflected from the molecular beam axis into the direction along which the strong field gradient is applied. Resonant two photon ionization carried out by shifting the laser position perpendicular to the molecular beam axis after the Stark deflector then gives an exclusive S1-S0 excitation spectrum of the cis conformer only, making possible immaculate conformer-specific spectroscopy and dynamics. As the spatial separation is apparently proportional to the effective dipole moment strength, conformational assignment could be absolute in the Stark deflector, which contrasts with the hole-burning spectroscopic technique where identification of a conformational isomer is intrinsically not unambiguous. trans- and cis-HyQ-H2O clusters have also been spatially separated according to their distinct effective dipole moment strengths to give absolute spectroscopic identification of each cluster isomer, nailing down the otherwise disputable conformational assignment. This is the first report for the spatial separation of conformational cluster isomers. PMID- 29337559 TI - Totally Organic Redox-Active pH-Sensitive Nanoparticles Stabilized by Amphiphilic Aromatic Polyketones. AB - Amphiphilic aromatic polymers have been synthesized by grafting aliphatic polyketones with 4-(aminomethyl)benzoic acid at different molar ratios via the Paal-Knorr reaction. The resulting polymers, showing diketone conversion degree of 16%, 37%, 53%, and 69%, have been complexed with the redox-active 2,3,5 triphenyl-2H-tetrazolium chloride, a precursor molecule with which aromatic aromatic interactions are held. Upon addition of ascorbic acid to the complexes, in situ reduction of the tetrazolium salt produced 1,3,5-triphenylformazan nanoparticles stabilized by the amphiphilic polymers. The stabilized nanoparticles display highly negative zeta potential [-(35-70) mV] and hydrodynamic diameters in the submicron range (100-400 nm). Nonaromatic polyelectrolytes or hydrophilic aromatic copolymers showing low linear aromatic density and high linear charge density such as acrylate/maleate and sulfonate/maleate-containing polymers were unable to stabilize formazan nanoparticles synthesized by the same method. The copolymers studied here bear uncharged nonaromatic comonomers (unreacted diketone units) as well as charged aromatic comonomers, which furnish amphiphilia. Thus, the linear aromatic density and the maximum linear charge density have the same value for each copolymer, and the hydrophilic/hydrophobic balance varies with the diketone conversion degree. The amphiphilia of the copolymers allows the stabilization of the nanoparticles, even with the copolymers showing a low linear aromatic density. The method of nanoparticle synthesis constitutes a simple, cheap, and green method for the production of switchable totally organic, redox-active, pH-sensitive nanoparticles that can be reversibly turned into macroprecipitates upon pH changing. PMID- 29337560 TI - Visible Light-Promoted Three-Component Tandem Annulation for the Synthesis of 2 Iminothiazolidin-4-ones. AB - Described is a visible light-promoted three-component tandem annulation of amines, aryl/alkyl isothiocyanates, and alpha-bromoesters to form 2 iminothiazolidin-4-ones in the absence of metal and photocatalyst at room temperature. This [1 + 2 + 2] cyclization strategy involves visible light promoted C-S/C-N bond formation and features a powerful approach to the synthesis of 2-iminothiazolidin-4-ones with broad substrate scope, excellent functional group tolerance, mild reaction conditions, step-economy, and simple operation, which also has potential applications in the pharmaceutical industry. UV-vis spectroscopy indicates that an in situ-generated H-bonding electron donor acceptor (EDA) complex probably acts as the photocatalyst, facilitating the reaction process. PMID- 29337561 TI - Methylammonium Cation Dynamics in Methylammonium Lead Halide Perovskites: A Solid State NMR Perspective. AB - In light of the intense recent interest in the methylammonium lead halides, CH3NH3PbX3 (X = Cl, Br, and I) as sensitizers for photovoltaic cells, the dynamics of the methylammonium (MA) cation in these perovskite salts has been reinvestigated as a function of temperature via 2H, 14N, and 207Pb NMR spectroscopy. In the cubic phase of all three salts, the MA cation undergoes pseudoisotropic tumbling (picosecond time scale). For example, the correlation time, tau2, for the C-N axis of the iodide salt is 0.85 +/- 0.30 ps at 330 K. The dynamics of the MA cation are essentially continuous across the cubic <-> tetragonal phase transition; however, 2H and 14N NMR line shapes indicate that subtle ordering of the MA cation occurs in the tetragonal phase. The temperature dependence of the cation ordering is rationalized using a six-site model, with two equivalent sites along the c-axis and four equivalent sites either perpendicular or approximately perpendicular to this axis. As the cubic <-> tetragonal phase transition temperature is approached, the six sites are nearly equally populated. Below the tetragonal <-> orthorhombic phase transition, 2H NMR line shapes indicate that the C-N axis is essentially frozen. PMID- 29337562 TI - Physiologically Based Pharmacokinetic Modeling in Lead Optimization. 2. Rational Bioavailability Design by Global Sensitivity Analysis To Identify Properties Affecting Bioavailability. AB - When medicinal chemists need to improve oral bioavailability (%F) during lead optimization, they systematically modify compound properties mainly based on their own experience and general rules of thumb. However, at least a dozen properties can influence %F, and the difficulty of multiparameter optimization for such complex nonlinear processes grows combinatorially with the number of variables. Furthermore, strategies can be in conflict. For example, adding a polar or charged group will generally increase solubility but decrease permeability. Identifying the 2 or 3 properties that most influence %F for a given compound series would make %F optimization much more efficient. We previously reported an adaptation of physiologically based pharmacokinetic (PBPK) simulations to predict %F for lead series from purely computational inputs within a 2-fold average error. Here, we run thousands of such simulations to generate a comprehensive "bioavailability landscape" for each series. A key innovation was recognition that the large and variable number of p Ka's in drug molecules could be replaced by just the two straddling the isoelectric point. Another was use of the ZINC database to cull out chemically inaccessible regions of property space. A quadratic partial least squares regression (PLS) accurately fits a continuous surface to these thousands of bioavailability predictions. The PLS coefficients indicate the globally sensitive compound properties. The PLS surface also displays the %F landscape in these sensitive properties locally around compounds of particular interest. Finally, being quick to calculate, the PLS equation can be combined with models for activity and other properties for multiobjective lead optimization. PMID- 29337563 TI - Magic-Angle Stacking and Strong Intermolecular pi-pi Interaction in a Perylene Bisimide Crystal: An Approach for Efficient Near-Infrared (NIR) Emission and High Electron Mobility. AB - A single crystal of N,N'-bis(4-methoxybenzyl)perylene-3,4,9,10-bis(dicarboximide) (mb-PBI) that possesses novel magic-angle stacking (M-type stacking) and strong intermolecular pi-pi interaction is achieved by physical vapor transport (PVT), which shows attractive optoelectronic functions such as efficient NIR emission and high electron mobility. In this special M-type staking, the strong Frenkel/CT mixing state promotes fluorescence and, importantly, the elimination of long distance Forster resonance energy transfer enables the minimization of the possible fluorescence quenching, which ensure the highly efficient emission. Moreover, the strong pi-pi interaction elongates the "supramolecular conjugation" to reduce the energy gap and also benefits the electron mobility of the crystal. The experimental results clearly indicate that M-type staking is a novel approach to optimize the optoelectronic functions of organic semiconducting materials. PMID- 29337564 TI - Vibrational Dynamics and Couplings of the Hydrated RNA Backbone: A Two Dimensional Infrared Study. AB - The equilibrium structure of the RNA sugar-phosphate backbone and its hydration shell is distinctly different from hydrated DNA. Applying femtosecond two dimensional infrared (2D-IR) spectroscopy in a range from 950 to 1300 cm-1, we elucidate the character, dynamics, and couplings of backbone modes of a double stranded RNA A-helix geometry in its aqueous environment. The 2D-IR spectra display a greater number of backbone modes than for DNA, with distinctly different lineshapes of diagonal peaks. Phosphate-ribose interactions and local hydration structures are reflected in the complex coupling pattern of RNA modes. Interactions with the fluctuating water shell give rise to spectral diffusion on a 300 fs time scale, leading to a quasi-homogeneous line shape of the symmetric (PO2)- stretching mode of the strongly hydrated phosphate groups. The RNA results are benchmarked by 2D-IR spectra of DNA oligomers in water and analyzed by molecular dynamics and quantum mechanical molecular mechanics simulations. PMID- 29337565 TI - Quantum Control of Graphene Plasmon Excitation and Propagation at Heaviside Potential Steps. AB - Quantum mechanical effects of single particles can affect the collective plasmon behaviors substantially. In this work, the quantum control of plasmon excitation and propagation in graphene is demonstrated by adopting the variable quantum transmission of carriers at Heaviside potential steps as a tuning knob. First, the plasmon reflection is revealed to be tunable within a broad range by varying the ratio gamma between the carrier energy and potential height, which originates from the quantum mechanical effect of carrier propagation at potential steps. Moreover, the plasmon excitation by free-space photos can be regulated from fully suppressed to fully launched in graphene potential wells also through adjusting gamma, which defines the degrees of the carrier confinement in the potential wells. These discovered quantum plasmon effects offer a unified quantum mechanical solution toward ultimate control of both plasmon launching and propagating, which are indispensable processes in building plasmon circuitry. PMID- 29337566 TI - Cationic Polymeric Nanoparticle Delivering CCR2 siRNA to Inflammatory Monocytes for Tumor Microenvironment Modification and Cancer Therapy. AB - Accumulating evidence has confirmed that malignant tumors have a complex microenvironment, which consists of a heterogeneous collection of tumor cells and other cell subsets (including the full gamut of immune cells). Tumor-associated macrophages (TAMs), derived from circulating Ly6Chi monocytes, constitute the most substantial fraction of tumor-infiltrating immune cells in nearly all cancer types and contribute to tumor progression, vascularization, metastasis, immunosuppression, and therapeutic resistance. Interrupting monocyte recruitment to tumor tissues by disturbing pivotal signaling pathways (such as CCL2-CCR2) is viewed as one of the most promising avenues for tumor microenvironment manipulation and cancer therapy. One critical issue for monocyte-based therapy is to deliver therapeutic agents into monocytes efficiently. In the present study, we systematically investigated the relationship between the surface potential and the biodistribution of polymeric nanoparticles in monocytes in vivo, aiming to screen and identify an appropriate delivery system for monocyte targeting, and we found that cationic nanoparticles have a higher propensity to accumulate in monocytes compared with their neutral counterparts. We further demonstrated that siCCR2-encapsulated cationic nanoparticle (CNP/siCCR2) could modify immunosuppressive tumor microenvironment more efficiently and exhibit superior antitumor effect in an orthotopic murine breast cancer model. PMID- 29337567 TI - Ultrafast Graphene Light Emitters. AB - Ultrafast electrically driven nanoscale light sources are critical components in nanophotonics. Compound semiconductor-based light sources for the nanophotonic platforms have been extensively investigated over the past decades. However, monolithic ultrafast light sources with a small footprint remain a challenge. Here, we demonstrate electrically driven ultrafast graphene light emitters that achieve light pulse generation with up to 10 GHz bandwidth across a broad spectral range from the visible to the near-infrared. The fast response results from ultrafast charge-carrier dynamics in graphene and weak electron-acoustic phonon-mediated coupling between the electronic and lattice degrees of freedom. We also find that encapsulating graphene with hexagonal boron nitride (hBN) layers strongly modifies the emission spectrum by changing the local optical density of states, thus providing up to 460% enhancement compared to the gray body thermal radiation for a broad peak centered at 720 nm. Furthermore, the hBN encapsulation layers permit stable and bright visible thermal radiation with electronic temperatures up to 2000 K under ambient conditions as well as efficient ultrafast electronic cooling via near-field coupling to hybrid polaritonic modes under electrical excitation. These high-speed graphene light emitters provide a promising path for on-chip light sources for optical communications and other optoelectronic applications. PMID- 29337568 TI - Rational Design of a Green-Light-Mediated Unimolecular Platform for Fast Switchable Acidic Sensing. AB - A controllable sensing ability strongly connects to complex and precise events in diagnosis and treatment. However, imposing visible light into the molecular-scale mediation of sensing processes is restricted by the lack of structural relevance. To address this critical challenge, we present the rational design, synthesis, and in vitro studies of a novel cyanostyryl-modified azulene system for green light-mediated fast switchable acidic sensing. The advantageous features of the design include a highly efficient green-light-driven Z/E-isomerization (a quantum yield up to 61.3%) for fast erasing chromatic and luminescent expressions and a superior compatibility with control of ratiometric protonation. Significantly, these merits of the design enable the development of a microfluidic system to perform a green-light-mediated reusable sensing function toward a gastric acid analyte in a miniaturized platform. The results may provide new insights for building future integrated green materials. PMID- 29337569 TI - Total Synthesis of the Highly N-Methylated Acetylene-Containing Anticancer Peptide Jahanyne. AB - The first total synthesis of the highly N-methylated acetylene-containing lipopeptide jahanyne, an apoptosis-inducing natural product from marine cyanobacteria, is reported. A late-stage solution-phase coupling enabled introduction of the C-terminal ketone pyrrolidine moiety. A modified Fmoc solid phase synthesis strategy was adopted to effectively couple multiple sterically hindered N-methylated amino acids while suppressing epimerization. The total synthesis has enabled confirmation of the proposed absolute configuration of natural jahanyne. PMID- 29337570 TI - Self-Organization of Metal Nanoparticles in Light: Electrodynamics-Molecular Dynamics Simulations and Optical Binding Experiments. AB - Light-driven self-organization of metal nanoparticles (NPs) can lead to unique optical matter systems, yet simulation of such self-organization (i.e., optical binding) is a complex computational problem that increases nonlinearly with system size. Here we show that a combined electrodynamics-molecular dynamics simulation technique can simulate the trajectories and predict stable configurations of silver NPs in optical fields. The simulated dynamic equilibrium of a two-NP system matches the probability density of oscillations for two optically bound NPs obtained experimentally. The predicted stable configurations for up to eight NPs are further compared to experimental observations of silver NP clusters formed by optical binding in a Bessel beam. All configurations are confirmed to form in real systems, including pentagonal clusters with five-fold symmetry. Our combined simulations and experiments have revealed a diverse optical matter system formed by anisotropic optical binding interactions, providing a new strategy to discover artificial materials. PMID- 29337571 TI - Direct Observation of a Transiently Formed Isomer During Iodoform Photolysis in Solution by Time-Resolved X-ray Liquidography. AB - Photolysis of iodoform (CHI3) in solution has been extensively studied, but its reaction mechanism remains elusive. In particular, iso-iodoform (iso-CHI2-I) is formed as a product of the photolysis reaction, but its detailed structure is not known, and whether it is a major intermediate species has been controversial. Here, by using time-resolved X-ray liquidography, we determined the reaction mechanism of CHI3 photodissociation in cyclohexane as well as the structure of iso-CHI2-I. Both iso-CHI2-I and CHI2 radical were found to be formed within 100 ps with a branching ratio of 40:60. Iodine radicals (I), formed during the course of CHI3 photolysis, recombine nongeminately with either CHI2 or I. Based on our structural analysis, the I-I distance and the C-I-I angle of iso-CHI2-I were determined to be 2.922 +/- 0.004 A and 133.9 +/- 0.8 degrees , respectively. PMID- 29337572 TI - Plasmonic Horizon in Gold Nanosponges. AB - An electromagnetic wave impinging on a gold nanosponge coherently excites many electromagnetic hot-spots inside the nanosponge, yielding a polarization dependent scattering spectrum. In contrast, a hole, recombining with an electron, can locally excite plasmonic hot-spots only within a horizon given by the lifetime of localized plasmons and the speed carrying the information that a plasmon has been created. This horizon is about 57 nm, decreasing with increasing size of the nanosponge. Consequently, photoluminescence from large gold nanosponges appears unpolarized. PMID- 29337573 TI - Cryoprotectants Severely Exacerbate X-ray-Induced Photoreduction. AB - Approximately 11% of enzymes contain a transition metal ion that is essential for catalytic function. Such metalloenzymes catalyze much of the most chemically challenging and biologically essential chemistry carried out by life. X-ray-based methods, predominantly macromolecular crystallography (MX) and also X-ray absorption spectroscopy (XAS), have proved essential for determining structures of transition metal ion-containing active sites in order to deduce enzyme catalytic mechanisms. However, X-ray irradiation can induce change in both the oxidation state and structure of the metal, which is problematic in structure determination. We present an XAS study of whether cryoprotectants such as polyethylene glycol (PEG) or glycerol, routinely added to MX or XAS samples to improve data quality, affect photoreduction. Our data demonstrate a remarkable 10 fold exacerbation in rate of photoreduction of Cu(II) to Cu(I) when alcohol or ether cryoprotectants are present. Our results suggest that widespread use of cryoprotectants may increase the potential for erroneous structures. PMID- 29337574 TI - Singlet Fission Mediated Photophysics of BODIPY Dimers. AB - The photodynamics of an orthogonal BODIPY dimer, particularly the formation of triplet states, has been explored by femtosecond and nanosecond transient absorption measurements. The short time scale data show the appearance of transient features of triplet character that, according to quantitative analysis of their intensities, account for more than 100% of the initially excited molecules, which reveals the occurrence of a singlet fission process in the isolated dimers. The formation rate of the triplet correlated state 1(TT) is found to depend on the solvent polarity, pointing to the mediation of a charge transfer character state. The dissociation of the 1(TT) state into pairs of individual triplets determines the triplet yield measured in the long time scales. The kinetic model derived from the results provides a comprehensive view of the photodynamics of BODIPY dimers and permits rationalization of the photophysical parameters of these systems. PMID- 29337575 TI - Optical Signatures of Impurity-Impurity Interactions in Copper Containing II-VI Alloy Semiconductors. AB - We study the optical properties of copper containing II-VI alloy quantum dots (CuxZnyCd1-x-ySe). Copper mole fractions within the host are varied from 0.001 to 0.35. No impurity phases are observed over this composition range, and the formation of secondary phases of copper selenide are observed only at xCu > 0.45. The optical absorption and emission spectra of these materials are observed to be a strong function of xCu, and provide information regarding composition induced impurity-impurity interactions. In particular, the integrated cross section of optical absorption per copper atom changes sharply (from 1 * 10 -2 nm3 to 4 * 10 2 nm3) at xCu = 0.12, suggesting a composition induced change in local electronic structure. These materials may serve as model systems to understand the electronic structure of I-III-VI2 semiconductor compounds. PMID- 29337576 TI - Impact of Nanoporosity on Hydrocarbon Transport in Shales' Organic Matter. AB - In a context of growing attention for shale gas, the precise impact of organic matter (kerogen) on hydrocarbon recovery from unconventional reservoirs still has to be assessed. Kerogen's microstructure is characterized by a very disordered pore network that greatly affects hydrocarbon transport. The specific structure and texture of this organic matter at the nanoscale is highly dependent on its origin. In this study, by the use of statistical physics and molecular dynamics, we shed some new lights on hydrocarbon transport through realistic molecular models of kerogen at different level of maturity [ Bousige et al. Nat. Mater. 2016 , 15 , 576 ]. Despite the apparent complexity, severe confinement effects controlled by the porosity of the various kerogens allow linear alkanes (from methane to dodecane) transport to be studied only via the self-diffusion coefficients of the species. The decrease of the transport coefficients with the amount of adsorbed fluid can be described by a free volume theory. Ultimately, the transport coefficients of hydrocarbons can be expressed simply as a function of the porosity (volume fraction of void) of the microstructure, thus paving the way for shale gas recovery predictions. PMID- 29337577 TI - Preparation of Nano Au and Pt Alloy Microspheres Decorated with Reduced Graphene Oxide for Nonenzymatic Hydrogen Peroxide Sensing. AB - The flourish of nanotechnology has brought new vitality to the research and development of electrochemical sensing materials. In this work, we successfully synthesized Nano Au and Pt alloy microspheres decorated with reduced graphene oxide (RGO/nAPAMSs) by a simple, facile, and eco-friendly one-step reduction strategy for the fabrication of highly sensitive nonenzymatic H2O2 sensing interfaces. Energy-dispersive X-ray spectroscopy mapping (EDX mapping), energy dispersive X-ray spectroscopy analysis (EDX), transmission electron microscopy (TEM), Fourier transform infrared spectrum (FT-IR), and X-ray diffraction spectrum (XRD) were employed to characterize RGO/nAPAMSs from a microscopic perspective. The results of cyclic voltammetry and chronoamperometry exhibited excellent electrochemical behaviors toward H2O2, with a rapid response time within 5 s, remarkable sensitivity of 1117.0 MUA mM-1 cm-2, wide linear range of 0.005 to 4.0 mM and lower detection limit of 0.008 MUM (S/N = 3), which provide RGO/nAPAMS not only a promising prospect for the quantitative detection of H2O2 but also a potential application in other fields of sensors. Moreover, further analysis showed the principles of the superior H2O2 sensing performance of RGO/nAPAMSs. This discovery provides a significant contribution to future study in nonenzymatic H2O2 sensing based on Nano Pt, Nano Au noble metal electrocatalysts. PMID- 29337578 TI - Physiologically Based Pharmacokinetic Modeling in Lead Optimization. 1. Evaluation and Adaptation of GastroPlus To Predict Bioavailability of Medchem Series. AB - When medicinal chemists need to improve bioavailability (%F) within a chemical series during lead optimization, they synthesize new series members with systematically modified properties mainly by following experience and general rules of thumb. More quantitative models that predict %F of proposed compounds from chemical structure alone have proven elusive. Global empirical %F quantitative structure-property (QSPR) models perform poorly, and projects have too little data to train local %F QSPR models. Mechanistic oral absorption and physiologically based pharmacokinetic (PBPK) models simulate the dissolution, absorption, systemic distribution, and clearance of a drug in preclinical species and humans. Attempts to build global PBPK models based purely on calculated inputs have not achieved the <2-fold average error needed to guide lead optimization. In this work, local GastroPlus PBPK models are instead customized for individual medchem series. The key innovation was building a local QSPR for a numerically fitted effective intrinsic clearance (CLloc). All inputs are subsequently computed from structure alone, so the models can be applied in advance of synthesis. Training CLloc on the first 15-18 rat %F measurements gave adequate predictions, with clear improvements up to about 30 measurements, and incremental improvements beyond that. PMID- 29337579 TI - Unveiling the Shape Evolution and Halide-Ion-Segregation in Blue-Emitting Formamidinium Lead Halide Perovskite Nanocrystals Using an Automated Microfluidic Platform. AB - Hybrid organic-inorganic perovskites and in particular formamidinium lead halide (FAPbX3, X = Cl, Br, I) perovskite nanocrystals (NCs) have shown great promise for their implementation in optoelectronic devices. Specifically, the Br and I counterparts have shown unprecedented photoluminescence properties, including precise wavelength tuning (530-790 nm), narrow emission linewidths (<100 meV) and high photoluminescence quantum yields (70-90%). However, the controlled formation of blue emitting FAPb(Cl1-xBrx)3 NCs lags behind their green and red counterparts and the mechanism of their formation remains unclear. Herein, we report the formation of FAPb(Cl1-xBrx)3 NCs with stable emission between 440 and 520 nm in a fully automated droplet-based microfluidic reactor and subsequent reaction upscaling in conventional laboratory glassware. The thorough parametric screening allows for the elucidation of parametric zones (FA-to-Pb and Br-to-Cl molar ratios, temperature, and excess oleic acid) for the formation of nanoplatelets and/or NCs. In contrast to CsPb(Cl1-xBrx)3 NCs, based on online parametric screening and offline structural characterization, we demonstrate that the controlled synthesis of Cl-rich perovskites (above 60 at% Cl) with stable emission remains a challenge due to fast segregation of halide ions. PMID- 29337580 TI - Spatiotemporal Control of Pre-existing Alkene Geometry: A Bio-Inspired Route to 4 Trifluoromethyl-2H-chromenes. AB - Routes to prepare C4-trifluoromethyl analogues of the 2H-chromene scaffold are scarce: this is particularly striking given the importance of fluorine in pharmaceutical development. To address this limitation, a facile strategy has been developed that is reliant on catalytic, geometric isomerization of easily accessible allylic alcohols (up to >95:5) followed by intramolecular cyclization via Pd catalysis (up to 96%). This concise biomimetic approach emulates the photoisomerization/cyclization cascade inherent to phenylpropanoid biosynthesis. PMID- 29337581 TI - Light Harvesting by Equally Contributing Mechanisms in a Photosynthetic Antenna Protein. AB - We report supramolecular quantum mechanics/molecular mechanics simulations on the peridinin-chlorophyll a protein (PCP) complex from the causative algal species of red tides. These calculations reproduce for the first time quantitatively the distinct peridinin absorptions, identify multichromophoric molecular excitations, and elucidate the mechanisms regulating the strongly allowed S0 (11Ag-) -> S2 (11Bu+) absorptions of the bound peridinins that span a 58 nm spectral range in the region of maximal solar irradiance. We discovered that protein binding site imposed conformations, local electrostatics, and electronic coupling contribute equally to the spectral inhomogeneity. Electronic coupling causes coherent excitations among the densely packed pigments. Complementary pairing of tuning mechanisms is the result of a competition between pigment-pigment and pigment environment interactions. We found that the aqueous solvent works in concert with the charge distribution of PCP to produce a strong correlation between peridinin spectral bathochromism and the local dielectric environment. PMID- 29337582 TI - Perceiving groups: The people perception of diversity and hierarchy. AB - The visual perception of individuals has received considerable attention (visual person perception), but little social psychological work has examined the processes underlying the visual perception of groups of people (visual people perception). Ensemble-coding is a visual mechanism that automatically extracts summary statistics (e.g., average size) of lower-level sets of stimuli (e.g., geometric figures), and also extends to the visual perception of groups of faces. Here, we consider whether ensemble-coding supports people perception, allowing individuals to form rapid, accurate impressions about groups of people. Across nine studies, we demonstrate that people visually extract high-level properties (e.g., diversity, hierarchy) that are unique to social groups, as opposed to individual persons. Observers rapidly and accurately perceived group diversity and hierarchy, or variance across race, gender, and dominance (Studies 1-3). Further, results persist when observers are given very short display times, backward pattern masks, color- and contrast-controlled stimuli, and absolute versus relative response options (Studies 4a-7b), suggesting robust effects supported specifically by ensemble-coding mechanisms. Together, we show that humans can rapidly and accurately perceive not only individual persons, but also emergent social information unique to groups of people. These people perception findings demonstrate the importance of visual processes for enabling people to perceive social groups and behave effectively in group-based social interactions. (PsycINFO Database Record PMID- 29337583 TI - Sudden-death aversion: Avoiding superior options because they feel riskier. AB - We present evidence of sudden-death aversion (SDA)-the tendency to avoid "fast" strategies that provide a greater chance of success, but include the possibility of immediate defeat, in favor of "slow" strategies that reduce the possibility of losing quickly, but have lower odds of ultimate success. Using a combination of archival analyses and controlled experiments, we explore the psychology behind SDA. First, we provide evidence for SDA and its cost to decision makers by tabulating how often NFL teams send games into overtime by kicking an extra point rather than going for the 2-point conversion (Study 1) and how often NBA teams attempt potentially game-tying 2-point shots rather than potentially game-winning 3-pointers (Study 2). To confirm that SDA is not limited to sports, we demonstrate SDA in a military scenario (Study 3). We then explore two mechanisms that contribute to SDA: myopic loss aversion and concerns about "tempting fate." Studies 4 and 5 show that SDA is due, in part, to myopic loss aversion, such that decision makers narrow the decision frame, paying attention to the prospect of immediate loss with the "fast" strategy, but not the downstream consequences of the "slow" strategy. Study 6 finds that people are more pessimistic about a risky strategy that needn't be pursued (opting for sudden death) than the same strategy that must be pursued. We end by discussing how these twin mechanisms lead to differential expectations of blame from the self and others, and how SDA influences decisions in several different walks of life. (PsycINFO Database Record PMID- 29337584 TI - Is antidepressant use associated with difficulty identifying feelings? A brief report. AB - Studies on the subjective effects of antidepressants suggest that they may not only improve depressed mood, but as an adverse effect also cause "emotional blunting." This phenomenon is poorly understood and little studied. The aim of this study was to examine the association of serotonergic antidepressant use and subjective emotional awareness. Emotional awareness was assessed using the Difficulty Identifying Feelings subscale from the 20-Item Toronto Alexithymia Scale. Fifty-seven individuals on antidepressant medication and 441 controls were compared. The effects of sex, age, education, as well as current depressive symptoms were controlled for. After controlling for selected variables, the antidepressant group scored higher in subjective difficulty identifying feelings, compared to controls. (p = .043, Adjusted means by Group 14.2 vs. 15.5, 95% confidence interval for mean difference between Groups 0.04-2.5). Serotonergic antidepressant use may be associated with difficulty identifying feelings. Future studies with a longitudinal setting are warranted to clarify causality. (PsycINFO Database Record PMID- 29337585 TI - Narrative theory: II. Self-generated and experimenter-provided negative income shock narratives increase delay discounting. AB - Reading experimenter-provided narratives of negative income shock has been previously demonstrated to increase impulsivity, as measured by discounting of delayed rewards. We hypothesized that writing these narratives would potentiate their effects of negative income shock on decision-making more than simply reading them. In the current study, 193 cigarette-smoking individuals from Amazon Mechanical Turk were assigned to either read an experimenter-provided narrative or self-generate a narrative describing either the negative income shock of job loss or a neutral condition of job transfer. Individuals then completed a task of delay discounting and measures of affective response to narratives, as well as rating various narrative qualities such as personal relevance and vividness. Consistent with past research, narratives of negative income shock increased delay discounting compared to control narratives. No significant differences existed in delay discounting after self-generating compared to reading experimenter-provided narratives. Positive affect was lower and negative affect was higher in response to narratives of job loss, but affect measures did not differ based on whether narratives were experimenter-provided or self-generated. All narratives were rated as equally realistic, but self-generated narratives (whether negative or neutral) were rated as more vivid and relevant than experimenter-provided narratives. These results indicate that the content of negative income shock narratives, regardless of source, consistently drives short term choices. (PsycINFO Database Record PMID- 29337587 TI - Use of lactic acid bacteria and yeasts to reduce exposure to chemical food contaminants and toxicity. AB - Chemical contaminants that are present in food pose a health problem and their levels are controlled by national and international food safety organizations. Despite increasing regulation, foods that exceed legal limits reach the market. In Europe, the number of notifications of chemical contamination due to pesticide residues, mycotoxins and metals is particularly high. Moreover, in many parts of the world, drinking water contains high levels of chemical contaminants owing to geogenic or anthropogenic causes. Elimination of chemical contaminants from water and especially from food is quite complex. Drastic treatments are usually required, which can modify the food matrix or involve changes in the forms of cultivation and production of the food products. These modifications often make these treatments unfeasible. In recent years, efforts have been made to develop strategies based on the use of components of natural origin to reduce the quantity of contaminants in foods and drinking water, and to reduce the quantity that reaches the bloodstream after ingestion, and thus, their toxicity. This review provides a summary of the existing literature on strategies based on the use of lactic acid bacteria or yeasts belonging to the genus Saccharomyces that are employed in food industry or for dietary purposes. PMID- 29337586 TI - Differential development of acute tolerance may explain heightened rates of impaired driving after consumption of alcohol mixed with energy drinks versus alcohol alone. AB - Consumers of alcohol mixed with energy drinks (AmED) are more likely to drive while impaired when compared to alcohol alone consumers. In addition, acute tolerance to the internal cues of feelings of intoxication is known to contribute to maladaptive decisions to drive while impaired. Therefore, the purpose of this study was to determine whether there is differential development of acute tolerance for AmED versus alcohol alone for ratings of willingness to drive after alcohol consumption. Social drinkers (n = 12) attended 4 separate sessions where they received alcohol and energy drinks, alone and in combination. The development of acute tolerance to alcohol was assessed for several objective (a computerized cued go/no-go reaction time task) and subjective measures at matched breath alcohol concentrations (BrACs) for the ascending and descending limbs of the BrAC curve. The results indicated that alcohol administration decreased willingness to drive ratings. Acute tolerance was observed in the AmED dose condition for only the willingness to drive ratings that were significantly higher on the descending versus ascending test. Alcohol-induced impairments of the computer task performance did not exhibit any acute tolerance. Therefore, the differential development of acute tolerance may explain why many studies observe higher rates of impaired driving for AmED consumers compared to alcohol alone consumers. Because drunk driving is a major public health concern, alcohol consumers should be warned that the use of energy drink mixers with alcohol could lead to a false sense of security in one's ability to drive after drinking. (PsycINFO Database Record PMID- 29337588 TI - An Argument for the Protocolized Screening and Management of Post-Extubation Stridor. PMID- 29337589 TI - Critical Review on the Analytical Mechanistic Steps in the Evaluation of Antioxidant Activity. AB - Electrophysiological systems are prone to release free radicals for functioning of biological system with proper balancing of antioxidant-prooxidant ratio for establishing a healthy living system. The biostress condition releases different reactive oxygen species, such as hydroxyl, alkoxyl, superoxide, hydrogen peroxide, hydroperoxyl, ozone, singlet oxygen, hypochlorus acid, thiyl radical, etc. This review tries to discuss the general aspects of the antioxidant assay methodologies that are currently used for the detection of antioxidant property. The entire review has been divided into three different sections. The first deals with the release of free radical by mitochondrial dysfuctioning and its curbing action by local antioxidants. The second and third sections discuss the general procedure adopted and reaction mechanism involved in the assay procedure along with the limitations and advantages. PMID- 29337591 TI - Reply to Smith et al.: An Argument for the Protocolized Screening and Management of Post-Extubation Stridor. PMID- 29337590 TI - Novel Mechanism for Nicotinamide Phosphoribosyltransferase Inhibition of TNF alpha-mediated Apoptosis in Human Lung Endothelial Cells. AB - Nicotinamide phosphoribosyltransferase (NAMPT) exists as both intracellular NAMPT and extracellular NAMPT (eNAMPT) proteins. eNAMPT is secreted into the blood and functions as a cytokine/enzyme (cytozyme) that activates NF-kappaB signaling via ligation of Toll-like receptor 4 (TLR4), further serving as a biomarker for inflammatory lung disorders such as acute respiratory distress syndrome. In contrast, intracellular NAMPT is involved in nicotinamide mononucleotide synthesis and has been implicated in the regulation of cellular apoptosis, although the exact mechanisms for this regulation are poorly understood. We examined the role of NAMPT in TNF-alpha-induced human lung endothelial cell (EC) apoptosis and demonstrated that reduced NAMPT expression (siRNA) increases EC susceptibility to TNF-alpha-induced apoptosis as reflected by PARP-1 cleavage and caspase-3 activation. In contrast, overexpression of NAMPT served to reduce degrees of TNF-alpha-induced EC apoptosis. Inhibition of nicotinamide mononucleotide synthesis by FK866 (a selective NAMPT enzymatic inhibitor) failed to alter TNF-alpha-induced human lung EC apoptosis, suggesting that NAMPT dependent NAD+ generation is unlikely to be involved in regulation of TNF-alpha induced EC apoptosis. We next confirmed that TNF-alpha-induced EC apoptosis is attributable to NAMPT secretion into the EC culture media and subsequent eNAMPT ligation of TLR4 on the EC membrane surface. Silencing of NAMPT expression, direct neutralization of secreted eNAMPT by an NAMPT-specific polyclonal antibody (preventing TLR4 ligation), or direct TLR4 antagonism all served to significantly increase EC susceptibility to TNF-alpha-induced EC apoptosis. Together, these studies provide novel insights into NAMPT contributions to lung inflammatory events and to novel mechanisms of EC apoptosis regulation. PMID- 29337592 TI - Concentrations of Blood Components in Commercial Platelet-Rich Plasma Separation Systems: A Review of the Literature. AB - BACKGROUND: Platelet-rich plasma (PRP) has proven to be a very safe therapeutic option in the treatment of tendon, muscle, bone, and cartilage injuries. Currently, several commercial separation systems are available for the preparation of PRP. The concentrations of blood components in PRP among these separation systems vary substantially. PURPOSE: To systematically review and evaluate the differences between the concentrations of blood components in PRP produced by various PRP separation systems. STUDY DESIGN: Systematic review. METHODS: MEDLINE/PubMed, the Cochrane Central Register of Controlled Trials (CENTRAL), and EMBASE were searched for studies that compared the concentrations of blood components and growth factors in PRP between various separation systems and studies that reported on the concentrations of blood components and growth factors of single separation systems. The primary outcomes were platelet count, leukocyte count, and concentration of growth factors (eg, platelet-derived growth factor-AB [PDGF-AB], transforming growth factor-beta1 [TGF-beta1], and vascular endothelial growth factor [VEGF]). Furthermore, the preparation protocols and prices of the systems were compared. RESULTS: There were 1079 studies found, of which 19 studies were selected for inclusion in this review. The concentrations of platelets and leukocytes in PRP differed largely between, and to a lesser extent within, the studied PRP separation systems. Additionally, large differences both between and within the studied PRP separation systems were found for all the growth factors. Furthermore, preparation protocols and prices varied widely between systems. CONCLUSION: There is a large heterogeneity between PRP separation systems regarding concentrations of platelets, leukocytes, and growth factors in PRP. The choice for the most appropriate type of PRP should be based on the specific clinical field of application. As the ideal concentrations of blood components and growth factors for the specific fields of application are yet to be determined for most of the fields, future research should focus on which type of PRP is most suitable for the specific field. PMID- 29337593 TI - Active December Caps Historic Year For Reform. AB - The month brought the repeal of the individual mandate's penalties, but also 2018 enrollment numbers rivaling those of 2017. PMID- 29337594 TI - Solid Phase Microextraction Techniques in Determination of Biomarkers. AB - The detection and quantification of biomarkers is gaining attention in medical research and diagnostics communities. Biomarkers cover a range from gases to biological macromolecules. Because of the nanomolar range levels of typical biomarkers in plasma, blood, urine, exhalation samples, and other biological fluids as well as complex matrix of biological media, adequate sample preparation methods should be used for quantification of biomarkers. The performance of an analytical method for biomarkers should support reproducible and accurate data. In the present paper, recent progress in well-established solid phase microextraction (SPME) methods for the clinical analysis are reviewed and discussed. PMID- 29337595 TI - Outcome of extraocular retinoblastoma in a resource limited center from low middle income country. AB - Retinoblastoma (RB) is the most common ocular malignancy in children, and is managed by multimodal treatment. There is a paucity of data regarding the clinical profile and outcome of children with extraocular retinoblastoma from Low Middle Income Countries (LMIC) including India. Case records of children with newly diagnosed extraocular RB from January 2013 to August 2016 treated at our unit were analysed for clinical profile, treatment, and outcome. Over the 44 month study period, 91 children were diagnosed with RB, out of which 41 had extraocular disease. While 26 children had extraocular spread limited to orbit (IRSS stage III), 15 had a distant spread to brain (IRSS stage IV). Median lag period for diagnosis was eight months. Treatment abandonment rates were 38.5% and 46.6% in International Retinoblastoma Staging System (IRSS) stage III and IV respectively. With a median follow up of 31.5 months, the projected overall survival for IRSS III at one, two, and three years was 87.5%, 55.6%, and 39.7%. All patients with stage IV disease died after a median follow up duration of three months. High treatment abandonment rates and limited availability of resources lead to suboptimal survival in children with extraocular RB from LMIC. Initiatives aimed at improving early diagnosis, so that the disease is detected in the intraocular stage, are critical to improve the survival in children with RB. PMID- 29337596 TI - The Influence of Graft Fixation Methods on Revision Rates After Primary Anterior Cruciate Ligament Reconstruction. AB - BACKGROUND: The method of graft fixation in primary anterior cruciate ligament (ACL) reconstruction is important for initial stability of the graft. Poor graft fixation can result in failure of the reconstruction. The effect of ACL graft fixation principles and fixation implant combinations on the risk of revision after ACL reconstruction is not well understood. PURPOSE: The study aimed to compare the risk of revision among 4 categories of femoral fixation divided by their principle of function using a hamstring tendon (HT) graft only. Furthermore, this study aimed to compare the risk of revision among the most frequently used combinations (tibia and femur) of graft fixation implants in a national patient cohort. STUDY DESIGN: Cohort study; Level of evidence, 3. METHODS: The authors divided the femoral fixation constructs into 4 categories by their principle of function: cortical suspensory fixation, adjustable cortical suspensory fixation, intratunnel transfixation, and interference screw (aperture) fixation. Data on revision rates and graft fixation methods were extracted from the Danish ACL Reconstruction Registry. The study included patients who underwent primary ACL reconstruction with either an HT or patellar tendon (PT) graft and were followed up at 2 to 10 years. Revision rates at 2-year and full follow-up were extracted for the category of graft fixation in the femur as well as for the most common implant combinations (those involving >175 patients). Patients with infrequently used fixation devices were excluded from this analysis. The HT group included 14 frequently used combinations (n > 175), and there were 2 such combinations in the PT group. A total of 13,200 ACL reconstructions were included in the study. For ACL reconstruction with an HT graft, there were 4680 with cortical suspensory fixation, 577 with adjustable cortical suspensory fixation, 5921 with intratunnel transfixation, and 617 with interference screw fixation. There were 1405 ACL reconstructions with a PT graft. RESULTS: When only comparing primary ACL reconstructions using an HT graft, cortical suspensory fixation exhibited a significantly higher risk of revision at 2-year follow-up than the other categories of femoral fixation (hazard ratio [HR], 1.24 [95% CI, 1.07 1.44]; P < .05). Intratunnel transfixation exhibited a significantly lower risk of revision (HR, 0.83 [95% CI, 0.73-0.94]; P < .05). Comparing the most frequently used femoral/tibial fixation implant combinations with the mean risk of revision, Endobutton/Intrafix and Endobutton/Biosure PEEK for HT grafts exhibited an increased risk of revision, with an relative risk (RR) of 1.36 (95% CI, 1.03-1.81; P < .05) and 1.55 (95% CI, 1.15-2.09; P < .05), respectively. The Atlantech metal screw/metal screw and Softsilk/Softsilk combinations (both for PT grafts) exhibited a significantly decreased risk of revision, with an RR of 0.41 (95% CI, 0.18-0.91; P < .05) and 0.36 (95% CI, 0.15-0.87; P < .05), respectively. CONCLUSION: When comparing ACL graft fixation methods in the 4 categories using an HT graft, cortical suspensory fixation was found to have a significantly increased risk of revision, while intratunnel transfixation exhibited a lower risk of revision. Both Endobutton/Intrafix and Endobutton/Biosure PEEK implant combinations exhibited a significantly higher risk of revision. For PT grafts, Atlantech metal screw/metal screw and Softsilk/Softsilk exhibited a significantly lower risk of revision. PMID- 29337597 TI - Hydroxyurea for lifelong transfusion-dependent beta-thalassemia: A meta-analysis. AB - OBJECTIVE: Chronic blood transfusion remains the most feasible therapeutic option for lifelong transfusion-dependent beta-thalassemia (lifelong TDbetaT). However, it is associated with serious risks and complications. Hydroxyurea (HU), an oral chemotherapeutic drug, is expected to increase hemoglobin levels, thereby minimizing the burden of blood transfusion and its complications. Growing literature over the last twenty years suggests promising results of the use HU in lifelong TDbetaT; however, its role and safety remain unanswered questions. The objective of this study was to evaluate the clinical efficacy and safety of HU in patients with lifelong TDbetaT. METHODS: MEDLINE, EMBASE, Cochrane databases, and major preceding conferences for studies that assessed HU in lifelong TDbetaT patients were searched. The effect size was estimated as a proportion (responder/sample size). RESULTS: Eleven observational studies, collectively involving 859 patients, fulfilled eligibility criteria. HU was associated with a significant decrease in transfusion need with complete and overall (>=50%) response rates of 26% [95% confidence interval (CI), 13-41%] and 60% (95% CI, 41 78%), respectively. No serious adverse effects were reported. All of the studies had several limitations, such as lack of a comparison group. CONCLUSION: HU appears to be effective, well tolerated; however, large randomized clinical trials should be done to confirm such findings. PMID- 29337598 TI - Comparative Study of Intramedullary Hammertoe Fixation. AB - BACKGROUND: Temporary Kirschner wire fixation (K-wire) is a widely used, low-cost fixation method for the correction of hammertoe deformity. Reported complications associated with K-wires prompted the development of new implants over the past decade. However, there is a lack of literature on comparative studies analyzing functional outcomes using validated questionnaires. The purpose of this study was to analyze functional outcomes in patients who had undergone proximal interphalangeal joint fusion using 2 types of intramedullary implant, the Smart Toe and the TenFuse, and to compare them with the outcomes in patients treated with standard K-wire fixation. METHODS: A retrospective review of operative hammertoe correction by a single surgeon was performed in 96 patients followed for more than 12 months. Functional outcome was assessed using the Foot Function Index (FFI), the Short Form 36 (SF-36), and the 10-point visual analog scale (VAS) validated questionnaires. Complications and fusion rates were also evaluated. Several patients in the study underwent corrections in different toes; thus, a total of 186 toes were included in the study. From these, 65 toes (34.9%) were treated with K-wire fixation, 94 (50.5%) with Smart Toe titanium implant, and 27 (14.5%) with TenFuse allograft implant. RESULTS: No statistically significant differences in functional outcome and incidence of complications were observed among the 3 fixation groups, although the 2 intramedullary implants were associated with greater fusion rates and patient satisfaction. Breakage of the Smart Toe implant was significantly higher than that of the other fixations, with 10.6% of implants breaking within the first year postoperatively. SF-36 and VAS scores decreased 12 months after surgery for the 3 types of fixation, with no statistically significant differences observed. CONCLUSION: The use of Smart Toe and TenFuse implants provided operative outcomes comparable to those obtained using a K-wire fixation and slightly better patient satisfaction. Our results suggest that utilization of these implants for hammertoe correction was a reasonable choice that provided good alignment, pain reduction, and improved function at final follow-up. However, they are more expensive than K-wires. For this reason, in-depth cost-benefit studies would be required to justify their use as a standard treatment. LEVEL OF EVIDENCE: Level III, comparative series. PMID- 29337599 TI - Pearson syndrome. AB - INTRODUCTION: Pearson syndrome (PS) is a sporadic and very rare syndrome classically associated with single large-scale deletions of mitochondrial DNA and characterized by refractory sideroblastic anemia during infancy. Areas covered: This review presents an analysis and interpretation of the published data that forms the basis for our understanding of PS. PubMed, Google Scholarand Thompson ISI Web of Knowledge were searched for relevant data. Expert commentary: PS is a very rare mitochodrial disease that involves different organs and systems. Clinical phenotype is extremely variable and may change over the course of disease itself with the possibility both of worsenings and improvements. Outcome is invariably lethal and at the moment no cure is available. Accurate supportive treatment and follow up program in centres with experience in mitochondrial diseases and marrow failure may positively influence quality and duration of life. PMID- 29337600 TI - Developing a theoretical foundation to change road user behavior and improve traffic safety: Driving under the influence of cannabis (DUIC). AB - OBJECTIVES: This study explored a theoretical model to assess the influence of culture on willingness and intention to drive under the influence of cannabis (DUIC). This model is expected to guide the design of strategies to change future DUIC behavior in road users. METHODS: This study used a survey methodology to obtain a nationally representative sample (n = 941) from the AmeriSpeak Panel. Survey items were designed to measure aspects of a proposed definition of traffic safety culture and a predictive model of its relationship to DUIC. RESULTS: Although the percentage of reported past DUIC behaviors was relatively low (8.5%), this behavior is still a significant public health issue-especially for younger drivers (18-29 years), who reported more DUIC than expected. Findings suggest that specific cultural components (attitudes, norms) reliably predict past DUIC behavior, general DUIC willingness, and future DUIC intention. Most DUIC behavior appears to be deliberate, related significantly to willingness and intention. Intention and willingness both appear to fully moderate the relationship between traffic safety culture and DUIC behavior. CONCLUSIONS: This study explored a theoretical model to understand road user behavior involving drug (cannabis)-impaired driving as a significant risk factor for traffic safety. By understanding the cultural factors that increase DUIC behavior, we can create strategies to transform this culture and sustain safer road user behavior. PMID- 29337601 TI - Mango kernel fat fractions as potential healthy food ingredients: A review. AB - Mango kernel fat (MKF) has been reported to have high functional and nutritional potential. However, its application in food industry has not been fully explored or developed. In this review, the chemical compositions, physical properties and potential health benefits of MKF are described. MKF is a unique fat consisting of 28.9-65.0% of 1,3-distearoyl-2-oleoyl-glycerol with excellent oxidative stability index (58.8-85.2 h at 110 degrees C), making the fat and its fractions suitable for use as high-value added food ingredients such as cocoa butter alternatives, trans-free shortenings, and a source of natural antioxidants (e.g., sterol, tocopherol and squalene). Unfortunately, the long period of dehydration of mango kernels at hot temperature results in the hydrolysis of triacylglycerols. The high levels of hydrolysates (mainly free fatty acids and diacylglycerols) limit the application of MKF in manufacturing these food ingredients. It is suggested that the physico-chemical and functional properties of MKF could be further improved through moderated refining (e.g., degumming and physical deacidification), fractionation, and interesterification. PMID- 29337602 TI - Defining the Learning Curve for Hip Arthroscopy: A Threshold Analysis of the Volume-Outcomes Relationship. AB - BACKGROUND: Hip arthroscopy has emerged as a successful option for the treatment of femoroacetabular impingement and related hip disorders, but the procedure is technically challenging. PURPOSE: To define the learning curve through which surgeons become proficient at hip arthroscopy. STUDY DESIGN: Cohort study; level of evidence, 3. METHODS: The authors identified hip arthroscopy procedures performed by surgeons through a New York State database (Statewide Planning and Research Cooperative System) and followed those cases for additional hip surgery (total hip arthroplasty, hip resurfacing, or ipsilateral hip arthroscopy) within 5 years of the original procedure. Career volume for each case was calculated as the number of hip arthroscopy procedures that the surgeon had performed. Volume strata were identified via the stratum-specific likelihood ratio method. A Cox proportional hazards model was used to measure the effect of surgeon career volume on risk of additional hip surgery, adjusting for the following patient characteristics: age, sex, race/ethnicity, insurance type, and concurrent diagnosis of hip osteoarthritis. RESULTS: Among 8041 hip arthroscopies performed by 251 surgeons, 989 (12.3%) cases underwent additional hip surgery within 5 years. Four strata of surgeon career volume associated with distinct frequencies of reoperation were identified: cases in the lowest stratum (0-97) had the highest frequency of additional surgery (15.4%). Frequencies declined for cases in the medium (98-388), high (389-518), and highest (>=519) strata (13.8%, 10.1%, and 2.6%, respectively). There was an increased risk of subsequent surgery in each stratum when compared with the highest stratum (hazard ratio [95% CI]: low volume, 3.22 [2.29-4.54]; medium, 3.40 [2.41-4.82]; high, 2.81 [1.86-4.25]; P < .0001 for all). Patients with a diagnosis of hip osteoarthritis had increased risk of subsequent hip arthroplasty or resurfacing (2.46 [2.09-2.89], P < .0001) . Risk also increased with age: 30 to 39 vs <=29 years (5.12 [3.29-8.00], P < .0001), 40 to 49 vs <=29 years (11.30 [7.43-17.190], P < .0001), >=50 vs <=29 years (18.39 [12.10-27.96], P < .0001). Increased age and osteoarthritis were not risk factors for revision hip arthroscopy. CONCLUSION: The learning curve for hip arthroscopy was unexpectedly demanding. Cases performed by surgeons with career volumes >=519 had significantly lower risk of subsequent hip surgery than those performed by lower-volume surgeons. PMID- 29337603 TI - An Integrative Review of Nonpharmacological Interventions to Improve Sleep among Adults with Advanced Serious Illness. AB - BACKGROUND: Sleep fragmentation is common among those with advanced serious illness. Nonpharmacological interventions to improve sleep have few, if any, adverse effects and are often underutilized in these settings. OBJECTIVE: We aimed to summarize the literature related to nonpharmacological interventions to improve sleep among adults with advanced serious illness. METHODS: We systematically searched six electronic databases for literature reporting sleep outcomes associated with nonpharmacological interventions that included participants with advanced serious illness during the period of 1996-2016. RESULTS: From a total of 2731 results, 42 studies met the inclusion criteria. A total of 31 individual interventions were identified, each evaluated individually and some in combination with other interventions. Twelve of these studies employed either multiple interventions within an intervention category (n = 8) or a multicomponent intervention consisting of interventions from two or more categories (n = 5). The following intervention categories emerged: sleep hygiene (1), environmental (6), physical activity (4), complementary health practices (11), and mind-body practices (13). Of the 42 studies, 22 demonstrated a statistically significant, positive impact on sleep and represented each of the categories. The quality of the studies varied considerably, with 17 studies classified as strong, 17 as moderate, and 8 as weak. CONCLUSIONS: Several interventions have been demonstrated to improve sleep in these patients. However, the small number of studies and wide variation of individual interventions within each category limit the generalizability of findings. Further studies are needed to assess interventions and determine effectiveness and acceptability. PMID- 29337604 TI - The Current Status of Outcomes-Based Contracting for Manufacturers and Payers: An AMCP Membership Survey. AB - BACKGROUND: As the United States health care system shifts from traditional volume-based payments to value-based payments, outcomes-based contracts (OBCs) are gaining popularity among payers and manufacturers as a mechanism for the shift toward value. Under this model, stakeholders hope to align drug payment and value to real-world performance metrics (e.g., biomarkers and health care resource utilization). OBJECTIVE: To understand the experiences, perceptions, and needs of payers and manufacturers related to OBCs. METHODS: The Academy of Managed Care Pharmacy (AMCP) and Xcenda conducted an online survey with AMCP payer and manufacturer members. Participants were asked a series of questions regarding their use of OBCs, barriers to implementation, and elements required in establishing successful OBCs. The importance and urgency of specific impediments to successful OBC implementation were also assessed. RESULTS: The survey was fielded May 12, 2017, to June 7, 2017, yielding 65 responses (35 payers/30 manufacturers). While a minority of payers/manufacturers had at least 1 OBC in place (20%/33%), a majority had interest in future OBC use (71%/63%). Among those with at least 1 OBC in place, 86%/80% of payers/manufacturers had renewed at least 1 OBC in the past 5 years. All payers and 60% of manufacturers with OBCs included compliance measures. Improvement in clinical outcomes was also common (71%/70%) (e.g., reaching set laboratory values goals), and 71%/60% included avoidance of unnecessary medical resource use (e.g., hospitalization and emergency department visit). The barrier most frequently identified by payers in implementing OBCs was evidence that OBCs reduced pharmacy spending (60%), while manufacturers identified the inability to obtain accurate data/outcome measures (73%) as a major limiting factor. Payers/manufacturers endorsed the use of easily measurable outcomes (91%/100%) as most important in establishing successful OBCs. Manufacturers, and to a lesser extent payers, indicated that regulations and legal issues need to be addressed to make progress in OBC implementation (e.g., safe harbor for preapproval health care economic information [77%/46%] and exemption of OBCs for best-price requirements [83%/51%]). The only exception was the clarification of regulations for discussing information outside of an FDA approved label, in which both manufacturers and payers indicated a very strong need (100%) to be addressed. CONCLUSIONS: Surveyed AMCP members are interested in OBCs and recognize their alignment to societal health goals and health care affordability, although actual use of these contracts has been somewhat limited to date. Results from this survey indicate that there is potential for OBC use to increase as barriers and limitations are addressed. DISCLOSURES: This research was sponsored by the Academy of Managed Care Pharmacy and Xcenda. Duhig, Kaufman, and Hughes are employed by Xcenda. Saha is employed by the Academy of Managed Care Pharmacy. Smith has nothing disclose. Study concept and design were contributed by Duhig, Kaufman, Saha, and Hughes. Kaufman and Hughes collected the data, and data interpretation was performed by all the authors. The manuscript was written by Saha, Smith, and Duhig, along with Kaufman and Hughes. PMID- 29337606 TI - Foodborne Pathogens and Disease Celebrates Its Fifteen Year Anniversary. PMID- 29337605 TI - Education and Health across Lives and Cohorts: A Study of Cumulative (Dis)advantage and Its Rising Importance in Germany. AB - Research from the United States has supported two hypotheses. First, educational gaps in health widen with age-the cumulative (dis)advantage hypothesis. Second, this relationship has intensified across cohorts-the rising importance hypothesis. In this article, we used 23 waves of panel data (Socio-Economic Panel Study, 1992-2014) to examine both hypotheses in the German context. We considered individual and contextual influences on the association between education and health, and we assessed gender differences in health trajectories over the life course (ages 23 to 84) and across cohorts (born between 1930 and 1969). For women, we found no support for either hypothesis, as educational gaps in self rated health remained stable with age and across cohorts. Among men, we found support for both hypotheses, as educational gaps in self-rated health widened with age and increasingly in newer cohorts. PMID- 29337608 TI - Author's Perspectives on Their Highly Cited Papers Published in Foodborne Pathogens and Disease. PMID- 29337607 TI - Foodborne Disease Outbreaks in the United States: A Historical Overview. AB - Understanding the epidemiology of foodborne disease outbreaks (FBDOs) is important for informing investigation, control, and prevention methods. We examined annual summary FBDO data in the United States from 1938 to 2015, to help understand the epidemiology of outbreaks over time. Due to changes in reporting procedures, before 1998, the mean number of annual outbreaks was 378, and after that, it was 1062. A mean of 42% had a known etiology during 1961-1998; since then the etiology has been identified in ~65%, with a marked increase in the number of norovirus outbreaks. From 1967 to 1997, a mean of 41% of FBDOs occurred in restaurant settings, increasing to 60% in 1998-2015. Concurrently, the proportion of outbreaks occurring at a home decreased from 25% to 8%. The mean size of outbreaks has decreased over time, and the number of multistate outbreaks has increased. Many social, economic, environmental, technological, and regulatory changes have dramatically affected the epidemiology of foodborne disease over time. PMID- 29337609 TI - Persistent Goose Hemorrhagic Polyomavirus Infection on a Belgian Goose Farm. AB - Goose hemorrhagic polyomavirus (GHPV) is the causative agent of hemorrhagic nephritis enteritis of geese (HNEG), one of the major diseases of domestic geese in Europe. This case report describes a persistent outbreak of a GHPV infection on a Belgian goose farm. Clinical symptoms, necropsy lesions, and histopathologic lesions observed were compatible with previous reports of HNEG outbreaks. PCR analysis confirmed the diagnosis of GHPV. To our knowledge, this is the first report of an outbreak of a GHPV infection on a Belgian goose farm. This is evidence that GHPV is not only present in countries known for extensive waterfowl production, but disease outbreaks also occur in countries with less extensive goose production. PMID- 29337611 TI - Interactions Between Parasites and the Bacterial Microbiota of Chickens. AB - Except for the important role coccidia have as predisposing factors of necrotic enteritis, the role parasites play in the dynamics of a healthy microbiota of chickens is not well explored. This review describes the interactions of relevant intestinal parasites of chickens with bacteria. Infection with Eimeria spp. favor the growth of Clostridium perfringens and suppress the growth of many other bacteria by increasing viscosity and passage time of the ingesta, and by causing lesions to the intestinal mucosa that improve the availability of nutrients for C. perfringens. Conversely, there are indications that bacteria influence the course of disease after infections with Eimeria spp. Not much is known about intestinal cryptosporidiosis in chickens, but results in mice show that the intestinal microbiota induces some resistance against infection with Cryptosporidium parvum and that the innate immune response triggered by infections with cryptosporidia might have an effect on other intestinal microbes. Histomonas meleagridis depend on bacteria in vitro, and in vivo it will cause lesions in chickens only in the presence of bacteria. Blastocystis spp. are very common in chickens, but there is no information about interactions with bacteria. In humans, there is evidence of the correlation of the detection of Blastocystis and changes in the intestinal microbiota. There are indications of interactions between Ascaridia galli and various bacteria in chickens and Ascaridia spp. of mammals are known to produce various types of antimicrobial molecules. However, often the underlying mechanisms of these interactions between parasites and bacteria remain unknown and only correlations but not causation can be established. PMID- 29337612 TI - Impact of Controlling Bacteria in Feed on Broiler Performance During a Clostridial Challenge. AB - Three studies were conducted using Clostridium perfringens as an intestinal challenge to produce necrotic enteritis (NE). The studies consisted of two battery screening studies and one production study in floor pens. The purpose of the trials was to determine if reducing the level of microorganisms in feed consumed by broilers reduced the impact of a nonfeed-based Clostridial challenge. In all studies, C. perfringens challenged broilers consuming feed containing lower levels of microorganisms compared to control feed exhibited significantly ( P < 0.05) better feed conversion (feed conversion was improved by 14% in battery trials and by 4.2% in the pen trial) than did C. perfringens-challenged broilers consuming control feed. In battery trials, body weight gain and NE-associated mortality were also significantly improved in C. perfringens-challenged broilers consuming feed containing lower levels of microorganisms (16.5% improvement in body weight gain and 72.5% reduction in NE-associated mortality). In the pen trial, body weight gain and NE-associated mortality appeared unaffected by feed microbial quality. No effect was observed on lesion scores. The present data indicate that reducing the level of microorganisms in feed can ameliorate some of the performance losses associated with a Clostridia challenge. PMID- 29337613 TI - Molecular Detection of Avian Influenza Virus from Sediment Samples in Waterfowl Habitats on the Delmarva Peninsula, United States. AB - Avian influenza viruses (AIV) affect many species of birds including waterfowl and may persist in sediment in aquatic habitats. Sediment samples were collected from two areas representative of prime migration and overwintering waterfowl habitat in Dorchester County, Maryland in the fall and winter of 2013-2014. Samples were screened for the presence of AIV via reverse transcriptase quantitative PCR targeting the matrix gene. Although 13.6% of sediment samples were positive for the AIV matrix gene across all collection dates and locations, differences in detection were noted with location and collection season. Percentage of AIV-positive sediment samples recovered corresponded to trends in waterfowl abundance at collection sites both temporally and spatially. These findings provide further support for the assertion that the presence of AIV in the aquatic environment is likely affected by the total number, site-specific density, and array of waterfowl species. PMID- 29337614 TI - Response of House Finches Recovered from Mycoplasma gallisepticum to Reinfection with a Heterologous Strain. AB - After recovery, house finches ( Haemorhous mexicanus) reinfected with the same Mycoplasma gallisepticum strain remain partially resistant to reinfection for at least 14 mo in that they recover from reinfection much more rapidly than do Mycoplasma gallisepticum-naive birds. To test the response of birds to reinfection with a heterologous strain we performed two experiments. In a first experiment we exposed birds to one of three strains that differed in virulence. After they had recovered all were reinfected with the most virulent-strain available at the time of the experiment. In a second experiment we infected and later reinfected house finches with one of two Mycoplasma gallisepticum strains whereby we switched the order of the strain used. In both experiments, disease in birds reinfected with a more-virulent strain caused more-severe disease. Our data suggest that the observed increase in Mycoplasma gallisepticum virulence, once the disease has become endemic in free-ranging house finches is-in part-driven by increased resistance of recovered birds to strains of equal or lower virulence. PMID- 29337615 TI - Efficacy of Massachusetts and 793B Vaccines Against Infectious Bronchitis Moroccan-Italy 02 Virus in Specific-Pathogen-Free Chickens and Commercial Broilers. AB - The ability of commercial vaccines H120 and 4/91 to protect against Moroccan Italy 02 infectious bronchitis virus (Mor-It02) was investigated in specific pathogen-free (SPF) chickens and commercial broiler chickens. Commercial broiler chicks (Experiment 1) were vaccinated at the hatchery with H120 vaccine at Day 1, and challenged at Day 21 with 104 50% egg-infective dose (EID50) of Mor-It02. All chicks were observed daily for clinical signs attributable to Mor-It02 infection during the 10 days postchallenge (pc). At 5 and 10 days pc, chicks were humanely sacrificed for necropsy examination, and tissues were collected for histopathology evaluation. To better understand the findings on commercial broilers, day-old SPF chicks were divided into five groups in a second experiment: Group Mass/4-91, vaccinated with H120 and 4/91 respectively at Days 1 and 15 of age; Group Mass/Mass, vaccinated by H120 at Days 1 and 15; Group Mass, vaccinated with H120 at Day 1; Group NV, kept unvaccinated; and Group NC, kept as a negative control (unchallenged). At Day 24 of age, Groups Mass/4-91, Mass/Mass, Mass, and NV were challenged with 104 EID50 of Mor-It02. In both experiments, blood samples were collected at different periods for serologic analyses. Oropharyngeal swabs were collected for virus detection by reverse-transcription PCR. In Experiments 1 and 2, respiratory signs started as early as 24 hr pc and maximum severity was observed on Days 3 and 4 pc. The viral shedding rate was significantly lower in Group Mass/4-91 compared to other challenged groups. Serologic analysis in both experiments showed that the sera of challenged group exhibited significantly higher antibody titers than sera collected before challenge. Histopathologic investigations in SPF birds showed deciliation and hyperplasia in Group NV and less-pronounced lesions in Groups Mass/Mass and Mass. In commercial broilers vaccinated with H120 alone, hyperplasia and deciliation were observed in 90% of the tracheas. These experiments illustrated that Mor-It02 is pathogenic for chickens and a combination of live H120 and 4/91 vaccines given respectively at Day 1 and Day 15 of age confer a good protection against Mor It02. PMID- 29337616 TI - Chronologic Analysis of Gross and Histologic Lesions Induced by Field Strains of FAdV-1, FAdV-8b, and FAdV-11 in Six-Week-Old Chickens. AB - Inclusion body hepatitis (IBH) is a disease affecting broiler chicken flocks worldwide. Several serotypes of fowl adenovirus (FAdV) have been implicated in disease outbreaks, with and without immunosuppression as a predisposing factor. IBH usually occurs in flocks up to 30 days of age; it is seldom seen in older birds. The objective of this study was to determine whether the pathogenicity for older birds of three FAdV field strains, belonging to serotypes 1, 8b, and 11, in the absence of immunosuppressive factors, was akin to that for younger birds, and to establish an effective and economical disease model for assessing cross protection between serotypes. To achieve this objective, the gross pathology, histopathology, and dissemination of virus were examined at multiple time points after inoculation of 6-wk-old, specific-pathogen-free chickens via intraperitoneal injection. Both FAdV-8b and FAdV-11 generated lesions typical of those associated with outbreaks of IBH, and they were shown to be primary pathogens. The presence and severity of hepatic lesions were used to define two disease stages: degeneration (1-5 days postinoculation) and convalescence (6-14 days postinoculation). During the degenerative stage, FAdV-8b was detected in the liver, kidney, and gizzard of most birds, whereas FAdV-11 was predominantly detected in the liver, and both viruses persisted in the gizzard into convalescence. The pathogenesis of two IBH-associated FAdV strains in 6-wk-old chickens confirms their high level of virulence and also provides an effective experimental model for investigation of cross-protection between FAdVs. It also demonstrates persistence of the virus in the gizzard long after infection, supporting the notion that it is a site of viral shedding. PMID- 29337617 TI - Intrapulmonary Delivery of CpG-ODN Microdroplets Provides Protection Against Escherichia coli Septicemia in Neonatal Broiler Chickens. AB - Synthetic oligodeoxynucleotides (ODN) containing unmethylated cytosine phosphodiester guanine (CpG) motifs (CpG-ODN) are effective immunostimulatory agents against a variety of viral, bacterial, and protozoan diseases in different animals including poultry. We have recently demonstrated that in ovo injection of CpG-ODN confers protection in neonatal chickens against bacterial septicemias. The objective of this study was to investigate the effectiveness of needle-free intrapulmonary (IPL) delivery of CpG-ODN microdroplets against Escherichia coli infection in neonatal chicks. In the present study, we used 880 chicks in total keeping 40 chicks per group. Chicks were delivered CpG-ODN or saline by IPL at the day 1 of hatch. Three days later, chicks were challenged with two doses (1 * 104 CFU, n = 20 or 1 * 105 CFU, n = 20) of E. coli. Chicks treated with CpG-ODN by the IPL route had significantly lower clinical signs and bacterial load compared to the group treated with saline ( P < 0.05). CpG-ODN-treated groups were significantly protected against E. coli septicemia. We observed dose- and exposure time-dependent immunoprotective effects of IPL CpG-ODN in chicks. We found that IPL delivery of CpG-ODN can induce protective immunity as early as 6 hr that remains effective at least until day 5 post-treatment. Moreover, there were no adverse effects of IPL delivery of CpG-ODN on growth or mortality up to 42 days of age. Based on these findings, it can be suggested that CpG-ODN delivery by IPL route can be a promising alternative to antibiotics for inducing protective immunity in chicks during the critical first week of neonatal life. PMID- 29337618 TI - Vegetative Valvular Endocarditis and Hepatitis Associated with Helcococcus ovis in a 7-year-old White Leghorn Rooster. AB - Helcococcus ovis is a slow-growing, pyridoxal-dependent, Gram-positive coccus belonging to the Peptostreptococcaceae family. Bacteria belonging to the genus Helcococcus are considered normal inhabitants of keratinized epithelium in humans; however, several reports support their role as pathogens in humans and several animal species. This case report describes the identification of H. ovis in a white leghorn rooster with valvular vegetative endocarditis and hepatitis. In February 2017 one dead, 7-yr-old, white leghorn rooster was submitted to the California Animal Health and Food Safety Turlock laboratory for diagnostic testing. Postmortem and microscopic examination revealed vegetative endocarditis and aortic thrombosis associated with large numbers of Gram-positive cocci. Myocarditis and extensive necrotic hepatitis were also noticed. Helcococcus ovis was isolated in large numbers from the aortic endothelium and confirmed by matrix assisted laser desorption ionization time-of-flight mass spectrometry. Bacterial colonies become evident 48 hr postincubation and exhibited a satellite growth around Escherichia coli on blood agar plates. A similar relationship has been described between Helcococcus spp. and Staphylococcus aureus. The primary site of infection in this chicken was not determined. To our understanding this is the first report of H. ovis infection in an avian species. The fastidious nature and nutritional requirements of Helcococcus spp. must be considered in order to allow proper identification and avoid misdiagnosis. Further studies are needed to define pathogenesis, virulence factors, and predisposing conditions associated with this microorganism. PMID- 29337620 TI - 2017 AAAP Awards. PMID- 29337619 TI - The Role of Necroptosis, Apoptosis, and Inflammation in Fowl Cholera-Associated Liver Injury in a Chicken Model. AB - Fowl cholera resulting from infection with Pasteurella multocida causes huge economic losses in the poultry industry. Necrotic hepatitis is reported to be a significant lesion associated with fowl cholera in chickens. Clarifying the underlying molecular mechanism of hepatic injury caused by P. multocida infection is needed to develop new strategies to control fowl cholera. Pasteurella multocida Q (the standard reference strain) and P. multocida 1G1 (a clinical strain) were used to infect healthy laying hens. Clinical signs were observed and gross lesions in livers were observed postmortem. Histologic lesions and the localization and expression of protein molecules associated with necroptosis, apoptosis, and inflammation in hepatic tissues were examined by hematoxylin and eosin staining and immunohistochemistry. Western blot analysis was used to determine the expression of liver injury-related genes. Necroptotic molecules such as RIPK1 (receptor interaction protein kinases 1), RIPK3 (receptor interaction protein kinases 3), and MLKL (mixed lineage kinase domain-like protein) were observed by immunostaining primarily in the cytoplasm of hepatocytes within or around necrotic foci, and inflammatory mediators HMGB1 (high-mobility group box 1) and IL-6 (interleukin-6) were found in the cytoplasm of heterophils, monocytes/macrophages, and hepatic sinusoids. In addition, MMP9 (matrix metalloproteinase 9) and TIMP1 (tissue inhibitor of metalloproteinase 1) were observed in hepatic parenchymal cells, inflammatory cells, and interstitial spaces, whereas the apoptotic effector molecule caspase-3 (cysteine-containing aspartic proteolytic enzymes 3) was mainly found in hepatocytes. The expression of RIPK1, RIPK3, and MLKL was significantly higher in the infected chickens than in the controls. HMGB1 and IL-6 protein levels were also increased in infected chickens relative to those in controls. Both MMP9 and TIMP1 were highly expressed in infected chickens. In addition, caspase-3 protein levels were significantly elevated in infected chickens. Necroptosis, apoptosis, and inflammation played a significant role in hepatic injury caused by P. multocida. PMID- 29337622 TI - Isolation of Avipoxvirus from Tongue of Canaries ( Serinus canaria) Show Severe Localized Proliferative Glossitis. AB - Poxvirus was the causative agent of two unusual outbreaks of proliferative glossitis in canary ( Serinus canaria forma domestica) breeders in the Northern Italy. A total of 45, 7-9-mo-old canaries were submitted in fair postmortem conditions to the Istituto Zooprofilattico Sperimentale delle Venezie at the beginning of November 2005 for diagnostic investigation. Birds belonged to two unrelated and geographically distant aviaries in northern Italy, herein identified as Aviary A and Aviary B. The two breeder flocks had both attended the same bird exposition held at the beginning of October and started experiencing an onset of high mortality 3 wk after the show. Twelve red factor-melanin canaries from Aviary A (Mantua) and 33 dominant white and recessive white canaries from Aviary B (Vicenza) were submitted for laboratory investigations. Clinical signs were unspecific and consisted of depression, ruffling of the feathers, epistaxis, and anorexia due to decreased feed and water intake. Postmortem findings revealed a severe increase in volume, thickening, and hardening of the tongue, which had turned pinkish to dark brown. No apparent gross lesions were noticed in integumentary, respiratory, and digestive systems or other internal organs. Histopathologic evaluation of the tongue revealed severe proliferation of the stratified squamous epithelium containing numerous large eosinophilic intracytoplasmic inclusion bodies (Bollinger bodies) displacing the nuclei of the cells peripherally. Severe ulceration of the surface epithelium, fibrinoheterophilic plaque formation, and moderate basal lymphoplasmacytic infiltrations were also associated with the proliferative lesion. Poxvirus was successfully isolated from the lesions in tissue cultures but not in specific pathogen-free chicken embryonated eggs. Typical large, brick-shaped viral particles of 300-450 nm were also observed in affected tongues by transmission electron microscopy. This is the first report of multiple outbreaks of "poxvirus glossitis" in canaries. PMID- 29337623 TI - Fibrillar Collagen Organization Associated with Broiler Wooden Breast Fibrotic Myopathy. AB - Wooden breast (WB) is a fibrotic myopathy affecting the pectoralis major (p. major) muscle in fast-growing commercial broiler lines. Birds with WB are phenotypically detected by the palpation of a hard p. major muscle. A primary feature of WB is the fibrosis of muscle with the replacement of muscle fibers with extracellular matrix proteins, such as collagen. The ability of a tissue to be pliable and stretch is associated with the organization of collagen fibrils in the connective tissue areas surrounding muscle fiber bundles (perimysium) and around individual muscle fibers (endomysium). The objective of this study was to compare the structure and organization of fibrillar collagen by using transmission electron microscopy in two fast-growing broiler lines (Lines A and B) with incidence of WB to a slower growing broiler Line C with no phenotypically detectable WB. In Line A, the collagen fibrils were tightly packed in a parallel organization, whereas in Line B, the collagen fibrils were randomly aligned. Tightly packed collagen fibrils arranged in parallel are associated with nonpliable collagen that is highly cross-linked. This will lead to a phenotypically hard p. major muscle. In Line C, the fibrillar collagen was sparse in its distribution. Furthermore, the average collagen fibril diameter and banding D-period length were altered in Line A p. major muscles affected with WB. Taken together, these data are suggestive of different fibrotic myopathies beyond just what is classified as WB in fast-growing broiler lines. PMID- 29337625 TI - Molecular Characterization of QX-Like and Variant Infectious Bronchitis Virus Strains in Malaysia Based on Partial Genomic Sequences Comprising the S-3a/3b-E-M Intergenic Region-5a/5b-N Gene Order. AB - Infectious bronchitis virus (IBV) is one of the major poultry pathogens of global importance. However, the prevalence of IBV strains in Malaysia is poorly characterized. The partial genomic sequences (6.8 kb) comprising the S-3a/3b-E-M intergenic region-5a/5b-N gene order of 11 Malaysian IBVs isolated in 2014 and 2015 were sequenced using next-generation sequencing technology. Phylogenetic and pairwise sequence comparison analysis showed that the isolated IBVs are divided into two groups. Group 1 (IBS124/2015, IBS125/2015, IBS126/2015, IBS130/2015, IBS131/2015, IBS138/2015, and IBS142/2015) shared 90%-95% nucleotide and deduced amino acid similarities to the QX-like strain. Among these isolates, IBS142/2015 is the first IBV detected in Sarawak state located in East Malaysia (Borneo Island). Meanwhile, IBV isolates in Group 2 (IBS037A/2015, IBS037B/2015, IBS051/2015, and IBS180/2015) were 91.62% and 89.09% identical to Malaysian variant strain MH5365/95 (EU086600) at nucleotide and amino acid levels, respectively. In addition, all studied IBVs were distinctly separate from Massachusetts (70%-72% amino acid similarity) and European strains including 793/B, Italy-02, and D274 (68%-73% amino acid similarity). Viruses in Group 1 have the insertion of three amino acids at positions 23, 121, and 122 of the S1 protein and recombinant events detected at nucleotide position 4354-5864, with major parental sequence derived from QX-like (CK-CH-IBYZ-2011) and a minor parental sequence derived from Massachusetts vaccine strain (H120). This study demonstrated coexistence of the IBV Malaysian variant strain along with the QX like strain in Malaysia. PMID- 29337626 TI - Comparative Analysis of Pasteurella multocida Isolates from Acute and Chronic Fowl Cholera Cases in Hungary During the Period 2005 Through 2010. AB - Fowl cholera (FC) is a highly contagious and economically important disease of poultry worldwide. This study was performed on 218 Pasteurella multocida isolates collected from separated breeding farms or backyards with acute and chronic FC cases in multiple localities across Hungary during the period 2005-2010. All isolates were characterized by a broad range of biochemical, serological, and molecular methods, as well as their antibiotic susceptibility to aminoglycosides (A), macrolides (M), penicillins (P), quinolones (Q), cephalosporins, sulphonamides (S), and tetracyclines (T) was determined. Fifty-two percent of all isolates belonged to a well-defined type that was highly virulent, caused acute FC, and had the same character: fermented L-arabinose, possessed capsule type A, identified as Heddleston serotype 1, and possessed allele type A of the ptfA fimbrial gene. This type was widely distributed among poultry in Hungary, especially in waterfowl flocks. Isolates collected from the chronic FC cases were more diverse: none of them fermented L-arabinose; they possessed capsule type A (76%), F (9%), or was non-typeable (15%) with different Heddleston serotypes, mainly 1, 3, 4, and 5, or 7 and 16; in addition, possessed allele type B of ptfA fimbrial gene. Only 26 isolates presented characters similar to any of the chronic FC cases but caused severe disease. The antibiotic susceptibility assay presented that 80% of all isolates were resistant to 1-5 of the studied antimicrobial agents. During the survey, after two years, there was a dramatic decline both in the number of the multi-drug resistance phenotypes and the prevalence of the highly virulent type of the isolates. In the next four years, multiresistant isolates were almost completely removed, whereas the number of isolates resistant to 1 or 2 drugs was constant. Reduced frequency of antibiotic multiresistant, mostly L-arabinose-fermenting isolates, has been observed since 2007. This reduction may be a consequence of the elimination of multiple waterfowl flocks in Hungary during avian influenza outbreaks, which possibly created a break in the "transmission chain" of pathogenic P. multocida isolates. PMID- 29337627 TI - Increased Incidence of Enterococcal Infection in Nonviable Broiler Chicken Embryos in Western Canadian Hatcheries as Detected by Matrix-Assisted Laser Desorption/Ionization-Time-of-Flight Mass Spectrometry. AB - The emergence of enterococcal infections in neonatal broiler chickens in the poultry industry has become common in many countries, including Canada. The objective of this study was to examine the bacterial infections in nonviable broiler chicken embryos in three western Canadian poultry hatcheries using matrix assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). The pattern of embryo mortality that occurred during incubation and the breakout analysis results were similar in all three hatcheries. The majority of embryo mortality occurred during the late stage of incubation (35.08%), followed by the early stage of incubation (15.35%). The breakout analysis showed that 65.82% of swabs had at least one type of bacterial growth while 34.17% of swabs were negative for bacterial isolation. Of those 65.82% swabs with bacterial growth, 34.3% of swabs yielded a mixed bacterial population while 31.52% yielded one type of bacterial growth. The frequency of bacterial isolation from hatch debris (60%-75%) increased with the age of broiler breeders. MALDI-TOF MS was able to provide genus-level identification of 83.13% of isolates among all bacterial types isolated. MALDI-TOF MS identified Enterococcus and Escherichia coli isolates with 97.18% and 100% accuracy at species level, respectively, whereas Staphylococcus species were identified with 62.59% accuracy. The congruence between MALDI-TOF MS identification and 16S rRNA or cpn60 universal gene target sequencing was 100% or 90%, respectively. Of all bacteria isolated, Enterococcus species (29.71%) were the most prevalent, followed by E. coli (19.46%). About 56% of E. coli-infected samples were coinfected with Enterococcus species. Among all Enterococcus species isolated, Enterococcus faecalis (79.58%) was the most prevalent, followed by Enterococcus faecium (8.1%). Overall, our study showed that Enterococcus-associated embryo mortality was predominant in all three hatcheries investigated and suggests that MALDI-TOF MS technology can be applied to identify bacteria such as Enterococcus species isolated from poultry. PMID- 29337629 TI - Biotech crop planting resumes high adoption in 2016. AB - The global area of biotech crops in 2016 increased from 179.7 million hectares to 185.1 million hectares, a 3% increase equivalent to 5.4 million hectares. Some 26 countries planted biotech crops, 19 of which were developing countries and seven were industrial. Information and data collected from various credible sources showed variations from the previous year. Fluctuations in biotech crop area (both increases and decreases) are influenced by factors including, among others, acceptance and commercialization of new products, demand for meat and livestock feeds, weather conditions, global market price, disease/pest pressure, and government's enabling policies. Countries which have increased biotech crop area in decreasing order in 2016 were Brazil, United States of America, Canada, South Africa, Australia, Bolivia, Philippines, Spain, Vietnam, Bangladesh, Colombia, Honduras, Chile, Sudan, Slovakia, and Costa Rica. Countries with decreased biotech area in decreasing order were China, India, Argentina, Paraguay, Uruguay, Mexico, Portugal, and Czech Republic, in decreasing incremental decrease in biotech area. Pakistan and Myanmar were the only countries with no change in biotech crop (cotton) planted. Information detailed in the paper including future crops and traits in each country could guide stakeholders in informed crafting of strategies and policies for increased adoption of biotech crops in the country. PMID- 29337630 TI - Ethnic differences in craniofacial and upper spine morphology in children with skeletal Class II malocclusion. AB - OBJECTIVES: To analyze differences in upper cervical spine and craniofacial morphology, including posterior cranial fossa and growth prediction signs, between Danish and South Korean pre-orthodontic skeletal Class II children and to analyze associations between upper cervical spine morphology and craniofacial characteristics. MATERIALS AND METHODS: One hundred forty-six skeletal Class II children-93 Danes (54 boys and 39 girls, mean age 12.2 years) and 53 Koreans (27 boys and 26 girls, mean age 10.8 years)-were included. Upper spine morphology, Atlas dimensions, and craniofacial morphology, including posterior cranial fossa and growth prediction signs, were assessed on lateral cephalograms. Differences and associations were analyzed by multiple linear and logistic regression analyses adjusted for age and gender. RESULTS: Significant differences between the ethnic groups were found in the sagittal and vertical craniofacial dimensions ( P < .001), mandibular shape ( P < .01), dental relationship ( P < .01), posterior cranial fossa ( P < .05), and growth prediction signs ( P < .001). No significant differences were found in upper spine morphology and Atlas dimensions between the groups. Upper spine morphology/dimensions were significantly associated with the cranial base angle ( P < .01), sagittal craniofacial dimensions ( P < .001), posterior cranial fossa ( P < .001), and growth prediction signs ( P < .05). CONCLUSIONS: Upper spine morphology/dimensions may be valuable as predictive factors in treatment planning for growing Class II children. PMID- 29337631 TI - The cervical vertebral maturation method: A user's guide. AB - The cervical vertebral maturation (CVM) method is used to determine the craniofacial skeletal maturational stage of an individual at a specific time point during the growth process. This diagnostic approach uses data derived from the second (C2), third (C3), and fourth (C4) cervical vertebrae, as visualized in a two-dimensional lateral cephalogram. Six maturational stages of those three cervical vertebrae can be determined, based on the morphology of their bodies. The first step is to evaluate the inferior border of these vertebral bodies, determining whether they are flat or concave (ie, presence of a visible notch). The second step in the analysis is to evaluate the shape of C3 and C4. These vertebral bodies change in shape in a typical sequence, progressing from trapezoidal to rectangular horizontal, to square, and to rectangular vertical. Typically, cervical stages (CSs) 1 and CS 2 are considered prepubertal, CS 3 and CS 4 circumpubertal, and CS 5 and CS 6 postpubertal. Criticism has been rendered as to the reproducibility of the CVM method. Diminished reliability may be observed at least in part due to the lack of a definitive description of the staging procedure in the literature. Based on the now nearly 20 years of experience in staging cervical vertebrae, this article was prepared as a "user's guide" that describes the CVM stages in detail in attempt to help the reader use this approach in everyday clinical practice. PMID- 29337632 TI - The usefulness of cone-beam computed tomography gray values for alveolar bone linear measurements. AB - OBJECTIVES: To test a proof-of-concept that the accuracy and reliability of alveolar bone height measurements from orthodontic grade (large field-of-view [FOV], large voxel-size) cone-beam computed tomography (CBCT) images may be improved by using pixel gray values. MATERIALS AND METHODS: Twenty fresh cadaver pig heads underwent CBCT scans (17 * 23 cm FOV, 0.4-mm voxel size). Buccal alveolar bone heights of maxillary first molars were measured using the conventional vision-based (VB) and the proposed gray value-assisted (GVA) methods. The GVA methods entailed localization of landmarks through observation of gray value pattern changes across tissue boundaries followed by mathematical calculation of distances between landmark pixels. Interrater reliability and accuracy of CBCT measurements made by all methods were statistically analyzed by comparing with physical measurements (gold standards). RESULTS: The interrater reliability of CBCT measurements made by GVA methods was comparable to physical measurements but higher than those made by the VB method. The GVA (bend-down pattern) method yielded average measurements similar to physical measurements, while those obtained by the VB and the GVA (straight pattern) methods were significantly larger (repeated measures analysis of variance, P < .001). The GVA (bend-down pattern) method also produced significantly more measurements within one voxel size of physical measurements than did the VB and GVA (straight pattern) methods (Chi-square tests, P < .017). CONCLUSIONS: These data confirm a concept that local gray value change patterns may be used to improve the accuracy and reliability of alveolar bone height measurement from large FOV and large voxel-size CBCT images. PMID- 29337633 TI - Three-dimensional evaluation of maxillary dentoalveolar changes and airway space after distalization in adults. AB - OBJECTIVES: To evaluate the changes in position of the maxillary dentition and the airway space after distalization using a modified C-palatal plate (MCPP) in adult patients through CBCT images and to analyze the relationship between the amount of distalization and the changes in the airway space. MATERIALS AND METHODS: CBCT images of 33 adult Class II patients (22.2 +/- 4.0 years old; 27 women and 6 men) treated by total maxillary arch distalization using the MCPP were evaluated before and after distalization. The patients were divided into nonextraction and extraction groups. The changes in the airway space as well as the changes in the positions of the maxillary dentition were evaluated. The distalization effects were calculated and assessed using paired t-tests. RESULTS: After distalization, the first molar showed significant distalization and intrusion ( P < .001) with no significant rotation of the crown and no significant buccal displacement of its root in the transverse dimension. There were no significant changes in the airway volume or the minimum cross-sectional area of the oropharynx. CONCLUSIONS: The application of the MCPP resulted in significant total arch distalization without a significant effect on the transverse dimensions or changes in the oropharynx airway space. The MCPP can be considered a viable treatment option for patients with Class II malocclusion. PMID- 29337634 TI - Risk factors associated with open gingival embrasures after orthodontic treatment. AB - OBJECTIVES: To investigate the incidence of and contributing factors to open gingival embrasures between the central incisors after orthodontic treatment. MATERIALS AND METHODS: One hundred posttreatment patients (29 men and 71 women; mean age, 24.7 years) were divided retrospectively into occurrence and nonoccurrence groups based on intraoral photographs. Based on the severity, the occurrence group was further divided into mild, moderate, and severe groups. Parameters from periapical radiographs, superimposed lateral cephalograms, and study models were compared between the occurrence and the nonoccurrence groups by using independent t-tests and were also analyzed on the basis of severity via analysis of variance. Logistic regression analysis was performed to identify the contributing factors to open gingival embrasures. RESULTS: The incidence of open gingival embrasures between the central incisors was 22% and 36% in the maxilla and the mandible, respectively. Lingual movement of the incisors, distance from the contact point to the alveolar crest after treatment, antero-posterior overlap of the two central incisors before treatment in the maxilla, and distance from the contact point to the alveolar crest after treatment in the mandible were significantly associated with the occurrence of open gingival embrasures ( P < .05). In the mandible, the amount of intrusion was significantly related to severity ( P < .05). CONCLUSIONS: The incidence of open gingival embrasures following orthodontic tooth movement is high. Therefore, attention should be paid to the contributing factors to prevent or reduce the occurrence of open gingival embrasures. PMID- 29337635 TI - Reply to M. Horiguchi et al. PMID- 29337636 TI - New-Onset Cardiovascular Morbidity in Older Adults With Stage I to III Colorectal Cancer. AB - Purpose We sought to determine the long-term risk of cardiovascular disease (CVD) stroke and myocardial infarction-and congestive heart failure (CHF) in older patients with colorectal cancer, as well as to understand the roles that preexisting comorbidities and cancer therapy play in increasing this risk. Patients and Methods We evaluated individuals from the SEER-Medicare database with incident stage I to III colorectal cancer at age older than 65 years between January 1, 2000, and December 31, 2011 (n = 72,408) and compared these patients with a matched cohort of Medicare patients without cancer (n = 72,408). Results Median age at diagnosis of colorectal cancer was 78 years (range, 66 years to 106 years), and median follow-up was 8 years since diagnosis. The 10-year cumulative incidence of new-onset CVD and CHF were 57.4% and 54.5% compared with 22% and 18% for control, respectively ( P < .001). The interaction between hypertension and chemotherapy was significant ( P < .001) for CVD, and that between diabetes and chemotherapy was significant ( P < .001) for CHF. Within the first 2 years since diagnosis, exposure to capecitabine alone increased CHF hazard (hazard ratio [HR], 3.6; 95% CI, 12.76 to 4.38) compared with exposure to fluorouracil alone. Conversely, patients who were treated with fluorouracil alone had a higher CVD hazard at < 2 years and > 2 years since diagnosis compared with patients who received capecitabine alone (< 2 years HR, 0.63; 95% CI, 0.53 to 0.75; > 2 years HR, 0.72; 95% CI, 0.62 to 0.84). Conclusion Older patients with colorectal cancer are at increased risk of developing CVD and CHF. Diabetes and hypertension interact with chemotherapy to increase the risk of cardiovascular morbidity. Future studies should assess the potential for personalized therapeutic options for those with preexisting morbidities and for structured monitoring for patients with a history of exposure to chemotherapy regimens, as well as explore the management of preexisting comorbidities to address long-term cardiovascular morbidity. PMID- 29337637 TI - Tumor Mutation Burden: Leading Immunotherapy to the Era of Precision Medicine? PMID- 29337638 TI - Patients With Advanced Melanoma Who Discontinued Treatment With Nivolumab and Ipilimumab as a Result of Adverse Events Lived Significantly Longer Than Patients Who Continued Treatment. PMID- 29337639 TI - Reply to M. Horiguchi et al. PMID- 29337641 TI - Strain-Specific Symbiotic Genes: A New Level of Control in the Intracellular Accommodation of Rhizobia Within Legume Nodule Cells. AB - This is a short commentary on the article by Wang et al. published in MPMI Vol. 31, No. 2, pages 240-248. PMID- 29337640 TI - Molecular Determinants of Response to Anti-Programmed Cell Death (PD)-1 and Anti Programmed Death-Ligand 1 (PD-L1) Blockade in Patients With Non-Small-Cell Lung Cancer Profiled With Targeted Next-Generation Sequencing. AB - Purpose Treatment of advanced non-small-cell lung cancer with immune checkpoint inhibitors (ICIs) is characterized by durable responses and improved survival in a subset of patients. Clinically available tools to optimize use of ICIs and understand the molecular determinants of response are needed. Targeted next generation sequencing (NGS) is increasingly routine, but its role in identifying predictors of response to ICIs is not known. Methods Detailed clinical annotation and response data were collected for patients with advanced non-small-cell lung cancer treated with anti-programmed death-1 or anti-programmed death-ligand 1 [anti-programmed cell death (PD)-1] therapy and profiled by targeted NGS (MSK IMPACT; n = 240). Efficacy was assessed by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1, and durable clinical benefit (DCB) was defined as partial response/stable disease that lasted > 6 months. Tumor mutation burden (TMB), fraction of copy number-altered genome, and gene alterations were compared among patients with DCB and no durable benefit (NDB). Whole-exome sequencing (WES) was performed for 49 patients to compare quantification of TMB by targeted NGS versus WES. Results Estimates of TMB by targeted NGS correlated well with WES (rho = 0.86; P < .001). TMB was greater in patients with DCB than with NDB ( P = .006). DCB was more common, and progression-free survival was longer in patients at increasing thresholds above versus below the 50th percentile of TMB (38.6% v 25.1%; P < .001; hazard ratio, 1.38; P = .024). The fraction of copy number altered genome was highest in those with NDB. Variants in EGFR and STK11 associated with a lack of benefit. TMB and PD-L1 expression were independent variables, and a composite of TMB plus PD-L1 further enriched for benefit to ICIs. Conclusion Targeted NGS accurately estimates TMB and elevated TMB further improved likelihood of benefit to ICIs. TMB did not correlate with PD-L1 expression; both variables had similar predictive capacity. The incorporation of both TMB and PD-L1 expression into multivariable predictive models should result in greater predictive power. PMID- 29337642 TI - Perineural Invasion in Parotid Gland Malignancies. AB - Objectives To investigate the clinical predictors and survival implications of perineural invasion (PNI) in parotid gland malignancies. Study Design Case series with chart review. Setting Tertiary care medical center. Subjects and Methods Patients with parotid gland malignancies treated surgically from 2000 to 2015 were retrospectively identified in the Head and Neck Cancer Registry at a single institution. Data points were extracted from the medical record and original pathology reports. Results In total, 186 patients with parotid gland malignancies were identified with a mean follow-up of 5.2 years. Salivary duct carcinoma (45), mucoepidermoid carcinoma (44), and acinic cell carcinoma (26) were the most common histologic types. A total of 46.2% of tumors were found to have PNI. At the time of presentation, facial nerve paresis (odds ratio [OR], 64.7; P < .001) and facial pain (OR, 3.7; P = .002) but not facial paresthesia or anesthesia (OR, 2.8, P = .085) were predictive of PNI. Malignancies with PNI were significantly more likely to be of advanced T and N classification, be high-risk pathologic types, and have positive margins and angiolymphatic invasion. PNI positivity was associated with worse overall (hazard ratio, 2.62; P = .001) and disease-free survival (4.18; P < .001) on univariate Cox regression analysis. However, when controlling for other negative prognosticators, age, and adjuvant therapy, PNI did not have a statistically significant effect on disease-free or overall survival. Conclusions PNI is strongly correlated with more aggressive parotid gland malignancies but is not an independent predictor of worse survival. Facial paresis and pain were predictive of PNI positivity, and facial paresis correlated with worse overall and disease-free survival. PMID- 29337645 TI - Conservative Approach for Treatment of Maxillary Lateral Incisor Agenesis With the Deciduous Tooth Retained: 18-Month Follow-Up. AB - This case describes a female patient with agenesis of the maxillary right lateral incisor, with her permanent canine in its position and the deciduous canine retained. Additionally, she presented with a maxillary left peg lateral incisor. To solve her functional and esthetic complaints, a multidisciplinary approach involving perio-restorative procedures was proposed. Periodontal surgeries were performed to align the gingival contour, and the restorative approach utilized ceramic veneers. At the 18-month clinical and radiographic follow-up, the treatment outcome was stable, with maintenance of the clinical results achieved and without any sign of deciduous tooth resorption. PMID- 29337643 TI - Models for predicting the evolution of influenza to inform vaccine strain selection. AB - Influenza vaccine composition is reviewed before every flu season because influenza viruses constantly evolve through antigenic changes. To inform vaccine updates, laboratories that contribute to the World Health Organization Global Influenza Surveillance and Response System monitor the antigenic phenotypes of circulating viruses all year round. Vaccine strains are selected in anticipation of the upcoming influenza season to allow adequate time for production. A mismatch between vaccine strains and predominant strains in the flu season can significantly reduce vaccine effectiveness. Models for predicting the evolution of influenza based on the relationship of genetic mutations and antigenic characteristics of circulating viruses may inform vaccine strain selection decisions. We review the literature on state-of-the-art tools and prediction methodologies utilized in modeling the evolution of influenza to inform vaccine strain selection. We then discuss areas that are open for improvement and need further research. PMID- 29337644 TI - Performance of Monolithic and Veneered Zirconia Crowns After Endodontic Treatment and Different Repair Strategies. AB - OBJECTIVES: To investigate failure loads of monolithic and veneered all-ceramic crowns after root canal treatment and to analyze marginal integrity of repair fillings. METHODS AND MATERIALS: Seventy-two human molars were restored with monolithic (Zr-All) or veneered (Zr-Ven) zirconia crowns. Molars were assigned to six groups (n=12 per group) depending on restoration material, access type (no access cavity [control] or endodontic treatment [test]), and type of filling (one step [1-st] or two-step [2-st]). For type of filling, molars were treated using a self-etch universal adhesive and cavities were either filled with layered composite (1-st) or filled until the crown material was reached, which was additionally conditioned and then filled (2-st). Scanning electron microscopic analysis of the restoration margins was performed before and after thermomechanical loading (TML), and the percentage of continuous margins was assessed. Crowns were then loaded to failure. RESULTS: Preparation of the access cavity required more time in monolithic (445 s) than in veneered crowns (342 s). Loads to failure were higher in control groups (Zr-All: 5814 N; Zr-Ven: 2133 N) and higher in monolithic test (2985 N) than in veneered test crowns (889 N). In monolithic crowns, 1-st had lower fracture loads than 2-st fillings (2149 N vs 3821 N). Continuous margins of 66% to 71% were achieved, which deteriorated after TML by 39% to 40% in Zr-All, by 34% in Zr-Ven-1-st, and by 24% in Zr-Ven-2-st. CONCLUSIONS: Endodontic access and adhesive restorations resulted in reduced fracture load in monolithic and veneered zirconia crowns. Two-step fillings provided higher fracture loads in Zr-All and better marginal quality in Zr-Ven crowns. PMID- 29337646 TI - Stability of an aluminum salt-adjuvanted protein D-conjugated pneumococcal vaccine after exposure to subzero temperatures. AB - Accidental exposure of a vaccine containing an aluminum-salt adjuvant to temperatures below 0 degrees C in the cold chain can lead to freeze damage. Our study evaluated the potential for freeze damage in a licensed aluminum-salt containing protein-D-conjugated pneumococcal vaccine (PHiD-CV; Synflorix, GSK) in conditions that included static storage, single subzero-temperature excursions, and simulated air-freight transportation. Several parameters were assessed including freezing at subzero temperatures, aluminum-salt-particle size, antigen integrity and immunogenicity in the mouse. The suitability of the WHO's shake test for identifying freeze-damaged vaccines was also assessed. During subzero temperature excursions, the mean temperatures at which PHiD-CV froze (-16.7 degrees C to -18.1 degrees C) appeared unaffected by the type of vaccine container (two-dose or four-dose vial, or single-dose syringe), vaccine batch, rotational agitation, or the rate of temperature decline (-0.5 to -10 degrees C/hour). At constant subzero temperature and in simulated air-freight transportation, the freezing of PHiD-CV appeared to be promoted by vibration. At 5 degrees C, no PHiD-CV sample froze in static storage (>1 month), whereas when subjected to vibration, a minority of samples froze (7/21, 33%) within 18 hours. At -8 degrees C with vibration, nearly all (5/6, 83%) samples froze. In these vibration regimes, the shake test identified most samples that froze (10/12, 93%) except two in the -5 degrees C regime. Nevertheless, PHiD-CV-antigen integrity appeared unaffected by freezing up to -20 degrees C or by vibration. And although aluminum-salt-particle size was increased only by freezing at -20 degrees C, PHiD CV immunogenicity appeared only marginally affected by freezing at -20 degrees C. Therefore, our study supports the use of the shake test to exclude freeze-damaged PHiD-CV in the field. PMID- 29337647 TI - Compositional Assessment of Human Tracheal Cartilage by Infrared Spectroscopy. AB - Objectives To assess the potential of infrared fiber-optic spectroscopy to evaluate the compositional properties of human tracheal cartilage. Study Design Laboratory-based study. Methods Twenty human cadaveric distal tracheas were harvested (age range 20-78 years; 6 females, 14 males) for compositional analysis. Histologic staining, Fourier transform infrared imaging spectroscopy data on collagen and proteoglycan (PG) content, and near-infrared (NIR) fiber optic probe spectroscopic data that reflect protein and water content were evaluated. NIR fiber-optic probe data were also obtained from the proximal trachea in 4 human cadavers (age range 51-65 years; 2 females, 2 males) in situ for comparison to distal trachea spectral data. Results In the distal trachea cohort, the spectroscopic-determined ratio of PG/amide I, indicative of the relative amount of PG, was significantly higher in the tissues from the younger group compared to the older group (0.37 +/- 0.08 vs 0.32 +/- 0.05, P = .05). A principal component analysis of the NIR spectral data enabled separation of spectra based on tracheal location, likely due to differences in both protein and water content. The NIR-determined water content based on the 5200-cm-1 peak was significantly higher in the distal trachea compared to the proximal trachea ( P < .001). Conclusions Establishment of normative compositional values and further elucidating differences between the segments of trachea will enable more directed research toward appropriate compositional end points in regenerative medicine for tracheal repair. PMID- 29337648 TI - Simultaneous amplification of exons 18 to 21 of the EGFR gene using 5' tailed primers and a two-stage protocol. AB - OBJECTIVE: Reduction of non-specific amplification and achievement of efficient amplification of multiple gene fragments under the same reaction condition is the basic goal of PCR diagnosis; however, this is often difficult. This study was conducted to establish a highly specific and effective amplification of the epidermal growth factor receptor (EGFR) gene's exons, 18-21, simultaneously. METHODS: The 5'-tailed primers were synthesized by adding 10 to 20 bp of a non specific sequence to the 5'-terminus of sequence-specific primers (tailless primers). The two-stage protocol consisted of 5-10 cycles of a conventional 3 step cycling, which was then followed by 30-35 cycles of two-step cycling. The exons 18-21 of EGFR gene were amplified in 28 non-small cell lung cancer (NSCLC) patients using an optimized PCR that combined 5' tailed primers with a two-stage protocol. RESULTS: The 5' tailed primers exhibited a wider range of suitable annealing temperatures, similar range of primer concentration, similar sensitivity, specificity, and reproducibility, as well as a reduced, non-specific amplification compared with the corresponding tailless primers. The amplification of exons 18-21 of EGFR gene in NSCLC patients revealed that a combination of 5' tailed primers with two-stage protocol (optimized PCR) had a similar PCR success rate (P = 0.873) but had significantly reduced non-specific amplification (P <0.001) compared to conventional PCR. CONCLUSION: 5' tailed primers exhibited a wider range of suitable annealing temperatures and improved specificity compared with conventional PCR primers. An optimized PCR was established with 5' tailed primers and a two-stage protocol to amplify exons 18-21 of the EGFR gene in NSCLC patients. PMID- 29337649 TI - Neurocognitive Deficits Associated With ADHD in Athletes: A Systematic Review. AB - CONTEXT: Attention deficit hyperactivity disorder (ADHD) is a common childhood disorder and is frequently diagnosed in young adults. Emerging studies suggest a relationship between ADHD and concussion. OBJECTIVE: To determine whether athletes with ADHD are at increased risk for neurocognitive deficits related to concussion risk, symptom reporting, and recovery. DATA SOURCES: A comprehensive search of PubMed, CINAHL, PsychInfo, and Cochrane Library databases was performed. Studies conducted between 2006 and 2017 were reviewed, although only those between 2013 and 2017 met inclusion criteria. STUDY SELECTION: Studies that examined neurocognitive deficits in adolescent and young adult athletes aged 15 to 19 years who had ADHD and reported using notable neuropsychological evaluation tools were included. STUDY DESIGN: Systematic review. LEVEL OF EVIDENCE: Level 2. RESULTS: A total of 17 studies met the inclusion criteria. The prevalence of ADHD in athletes varied between 4.2% and 8.1%. Overall, athletes with ADHD demonstrated lower scores on neurocognitive testing such as the ImPACT (Immediate Post-Concussion Assessment and Cognitive Test), increased risk for concussion, and increased symptom reporting. There was no evidence that treatment with stimulant medication changed these risks. CONCLUSION: ADHD is associated with increased neurocognitive deficits in athletes, although pathophysiology remains unclear. Evidence for stimulant treatment in athletes with ADHD continues to be sparse. PMID- 29337650 TI - The Association of External Transfer Status with Adverse Outcomes in Otolaryngology. AB - Objective To compare rates of morbidity and mortality in patients treated by otolaryngologists who undergo interhospital transfers vs those who do not and to quantify conditions requiring interhospital transfers in this population. Study Design Cohort study. Setting American College of Surgeons National Surgical Quality Improvement Program. Subjects and Methods We identified patients requiring surgery by otolaryngologists in the National Surgical Quality Improvement Program database from 2006 to 2013. We compared patients who were transferred from an outside institution to those admitted from home. Multivariate regression was used to adjust for patient characteristics, comorbidities, and case mix. The primary outcome was overall morbidity and mortality within 30 days of surgery. Results We identified 60,498 patients; 488 (0.8%) were transferred from another institution. Operations that were more common in the transferred group were incision and drainage (24.0% vs 1.2%), facial trauma repair (9.0% vs 3.1%), and oropharyngeal hemorrhage control (3.9% vs 0.4%). External transfer patients had significantly longer hospital stays (44.1% vs 4.4% >7 days, P < .05). On unadjusted analysis, transferred patients had a significantly higher rate of morbidity and mortality (odds ratio [OR], 11.3; 95% confidence interval [CI], 9.4-13.5). On multivariate analysis, transferred patients had a significantly greater rate of morbidity and mortality (OR, 3.1; 95% CI, 2.4-4.0). Conclusion Transfer from another institution is associated with worse outcomes independent of case mix, demographics, and preoperative comorbidities in acute otolaryngology conditions requiring surgery. Practitioners should be aware of this when caring for transfer patients, and transfer status should be considered when measuring hospital quality. PMID- 29337651 TI - The effects of booster vaccination of hepatitis B vaccine on children 5-15 years after primary immunization: A 5-year follow-up study. AB - The aim of this study was to evaluate changes in hepatitis B surface antibody titers (anti-HBs) after booster vaccinations in children aged 5-15 y and to provide suitable immunization strategies. A total of 2208 children were initially enrolled in screening, and 559 children were finally included. The participants were divided into 2 groups according to their pre-booster anti-HBs levels: Group I, <10 mIU/ml and Group II, >=10 mIU/ml. Group I was administered 3 doses of booster hepatitis B vaccine (0-1-6 months, 10 MUg), and Group II was administered 1 dose of booster hepatitis B vaccine (10 MUg). The antibody titer changes were examined at 4 time points: 1 month after dose 1 and dose 3, and 1 year and 5 years after dose 3. The protective seroconversion rates at those points were 95.65%, 99.67%, 97.59% and 91.05% (p < 0.001), respectively, in Group I, and 100.00%, 99.87%, 99.66% and 98.21% (chi2 = 6.04, p = 0.11), respectively, in Group II. The GMT in subjects aged 5-9 y were higher than that in subjects aged 10-15 y in both Group I and Group II at 1 month after dose 1, but no difference was observed at the other three time points. This study demonstrates that booster vaccination has a good medium-term effect. A booster dose for subjects with protective antibodies is not necessary but effective, and 3 doses of hepatitis B vaccination are recommended for those who have lost immunological memory. Receiving booster immunization at the age of 10-15 years may be more appropriate for individuals living in HBV high epidemic areas. PMID- 29337652 TI - Poorly neutralizing polyclonal antibody in vitro against coxsackievirus A16 circulating strains can prevent a lethal challenge in vivo. AB - Neutralizing antibodies (NTAbs) is a major criterion for evaluation the immunogenicity of many vaccines, for example, poliovirus and EV71 vaccine. Here, we firstly discovered that polyclonal antibodies induced by inactivated CVA16 vaccine and lived CVA16 virus have poor ability to neutralize circulating CVA16 strains in vitro. However, the passive transfer of poorly neutralizing polyclonal antibodies can protect suckling mice from lethally challenged with circulating strains in vivo. In addition, the obvious dose response was found between the titer of antibodies and the survival rate. Interestingly, poorly neutralizing polyclonal antibodies against circulating CVA16 strains, have good ability to neutralize prototype strain G10 in vitro. Between G10 and circulating CVA16 strains, there are total 47 variant sites in capsid, which are near the interface of VP1, VP2, and VP3, and close to 2-fold axis. Based on the structure of CVA16, the obvious structural changes were observed in residue 213 of VP1 GH loop, residue 139 of VP2 EF loop, and residues 59, 182 and 183 of VP3 GH loop. What we found may provide a new sight for the development of CVA16 vaccine. PMID- 29337653 TI - Safety and immunogenicity of a meningococcal B recombinant vaccine when administered with routine vaccines to healthy infants in Taiwan: A phase 3, open label, randomized study. AB - Neisseria meningitidis is associated with high mortality and morbidity in infants and children worldwide. This phase 3 study (NCT02173704) evaluated safety and immunogenicity of a 4-component serogroup B recombinant meningococcal vaccine (4CMenB) co-administered with routine vaccines in Taiwanese infants. In total, 225 healthy infants were randomized (2 : 1 ) to receive 4CMenB and routine vaccines (4CMenB+Routine) or routine vaccines only (Routine group) at 2, 4, 6 and 12 months of age. Routine vaccines were diphtheria-tetanus-acellular pertussis inactivated poliovirus-Haemophilus influenzae type b, 13-valent pneumococcal, hepatitis B, measles-mumps-rubella and varicella vaccines. Immune responses to 4CMenB components (factor H binding protein [fHbp], Neisserial adhesin A [NadA], porin A [PorA] and Neisseria heparin-binding antigen [NHBA]) were evaluated at 1 month post-primary and post-booster vaccination, using human serum bactericidal assay (hSBA). Reactogenicity and safety were also assessed. A sufficient immune response was demonstrated for fHbp, NadA and PorA, at 1 month post-primary and booster vaccination. In the 4CMenB+Routine group, hSBA titers >=5 were observed in all infants for fHbp and NadA, in 79% and 59% of infants for PorA and NHBA, respectively, at 1 month post-primary vaccination and in 92-99% of infants for all antigens, at 1 month post-booster vaccination. In the 4CMenB+Routine group, hSBA geometric mean titers for all antigens increased post-primary (8.41-963) and post-booster vaccination (17-2315) compared to baseline (1.01-1.36). Immunogenicity of 4CMenB was not impacted by co-administration with routine pediatric vaccines in infants. Reactogenicity was slightly higher in the 4CMenB+Routine group compared with Routine group, but no safety concerns were identified. PMID- 29337654 TI - Oral Antihistamines Alone vs in Combination with Leukotriene Receptor Antagonists for Allergic Rhinitis: A Meta-analysis. AB - Objective To evaluate whether an adjuvant therapy of leukotriene receptor antagonists (LTRAs) based on oral H1-antihistamines (H1) can increase efficacy of allergic rhinitis (AR) treatment. Data Sources The search involved databases of PubMed, EMBASE, and Cochrane Central Register of Controlled Trials, from inception up to September 23, 2017. Randomized controlled trials (RCTs) that compared efficacy of LTRAs + H1 vs H1 alone were eligible. Review Methods Pooled comparative effects were measured using weighted mean difference (WMD) and 95% confidence interval (CI). Subgroup analysis comparing seasonal vs perennial AR was prespecified to explore the source of heterogeneity. The evidence quality of each outcome was assessed by the GRADE approach. Results A total of 8 RCTs were included (n = 1886), and all measured outcomes used scaled scores. Compared with H1 alone, H1 + LTRAs were superior to improve overall daytime (WMD, -0.11; 95% CI, -0.19 to -0.03, high quality) and composite (WMD, -0.12; 95% CI, -0.23 to 0.01; low quality) nasal symptoms. Specifically, H1 + LTRAs had better efficacy against composite nasal rhinorrhea, sneezing, and daytime itching but not congestion. The effects were more pronounced in patients with perennial AR compared to those with seasonal AR. There were no significant differences in nighttime nasal symptoms and eye symptoms between the 2 groups. Conclusion The current evidence suggests that LTRAs + H1 can increase the therapeutic efficacy against daytime and composite nasal symptoms, including rhinorrhea, sneezing, and itching; however, it does not affect nighttime nasal symptoms and eye symptoms. The patients with perennial AR may benefit more from the combination therapy. PMID- 29337655 TI - The Patient Who Continues to Smoke On-Treatment: An Ethical Dilemma. PMID- 29337656 TI - A review of methodology for the analysis of pyrethrin and pyrethroid residues in food of animal origin. AB - Pyrethrin and pyrethroid pesticides are commonly used in crop protection and animal health, to control pests. As a result, they can potentially transfer into food if good agricultural practice is not followed or even due to accidental contamination. The analysis of these compounds has been widely reported in crops and the environment. However, the analysis of pyrethrin and pyrethroids has not been reported frequently in foods of animal origin, particularly animal tissues. The focus of this review is to report on pyrethrin and pyrethroid analysis including key aspects such as chemistry, choice of target matrix, sample preparation, chemical analysis, legislation and method validation. This review shows that most methodologies for the analysis of these compounds are based on gas chromatography with the trend in recent years to move towards GC-MS or GC MS/MS based platforms. This review shows that these compounds can also be satisfactorily analysed by LC-MS/MS, which can be advantageous because of shorter chromatographic run times. A wide range of sample preparation procedures have been applied in analytical methods and more complex protocols are required for GC applications, whereas more crudely prepared extracts can be analysed by LC-MS/MS. This review demonstrates that pyrethrin and pyrethroid residues should be included as analytes in multi-class analytical methods for pesticides and veterinary drug residues in animal derived foods. PMID- 29337657 TI - The prevalence of deoxynivalenol and its derivatives in the spring wheat grain from different agricultural production systems in Lithuania. AB - Deoxynivalenol (DON) together with two acetylated derivatives, 3 acetyldeoxynivalenol (3-ADON) and 15-acetyldeoxynivalenol (15-ADON) occurs in cereal grains and their products. Co-occurrence of DON and acetylated derivatives in cereal grain is detected worldwide. Until now, DON and its derivatives have been considered equally toxic by health authorities. In this study, we analysed 103 samples of spring wheat grain, originating from the fields of different production systems in Lithuania, for the co-occurrence of type-B trichothecenes (DON, 3-ADON, 15-ADON). The samples were classified according to the production system-organic, sustainable and intensive. Mycotoxin levels in the spring wheat grain samples were determined by the HPLC method with UV detection. The type-B trichothecenes were found to be present at higher concentrations in the grain from the intensive production system. Eighty-one percent of the spring wheat grain samples from the intensive production system were co-contaminated with a combination of DON+3-ADON+15-ADON, 1% with DON+3-ADON. Additionally, DON+15-ADON and DON were found in 5% and 10% of the tested samples, respectively. Two percent of the samples were free from mycotoxins. In the grain samples from the sustainable production system, DON and a combination of DON+3-ADON showed a higher incidence - 47% and 23%, respectively. The samples with a combination of DON+3-ADON+15-ADON accounted for 18%. Completely different results were obtained from the analyses of organic grain samples. A large number of the organic spring wheat grain samples were contaminated with DON+3-ADON (55%) or DON (36%). The combination of DON+3-ADON+15-ADON was not present, while DON+15-ADON was present in 9% of the samples tested. The production systems did not lead to significant differences in mycotoxin levels, although a trend toward higher incidence and higher contamination was observed for the samples from the intensive and sustainable production systems. PMID- 29337658 TI - Versicolorin A is a potential indicator of aflatoxin contamination in the granary stored corn. AB - The objective of this study was to evaluate the feasibility of the predictive monitoring of aflatoxin B1 (AFB1) under granary conditions, since mycotoxin contamination of the stored grain represents an important issue. Using the storage test, we investigated the relationship between versicolorin A (Ver A, an intermediate in AFB1 biosynthesis) levels and the levels of aflatoxigenic fungi, and their relationship with aflatoxin production. All samples, except for one, were found to be contaminated with aflatoxigenic fungi using PCR analyses, while their AFB1 levels were not detectable before the storage test using an enzyme linked immunosorbent assay (ELISA) method with an LOD of 2 MUg/kg. Aflatoxigenic fungi levels were analysed, as well as Ver A levels prior to the accumulation of AFB1 (Levels were >=5 MUg/kg; the permissible levels of AFB1 in corn intended for direct consumption are <5 MUg/kg (EC)). Statistical analyses demonstrated that aflatoxin levels after both actual storage and safe storage (AFB1?5MUg/kg) times are significantly correlated with the Ver A levels and the changes in Ver A levels (DeltaVer A). Both high and variable Ver A levels were indicative of the vigorous metabolic activity of aflatoxigenic fungi. In contrast, steady Ver A levels showed that aflatoxin production by the fungi was not active. Monitoring Ver A levels and their changes may allow an earlier detection of harmful aflatoxin contamination in the stored grain. Additionally, the toxicity of Ver A should be further examined. The results of our study indicate that the monitoring of Ver A levels, even when the AFB1 levels are very low, may increase the safety of grain consumption, especially considering Ver A toxicity. PMID- 29337659 TI - Determination of five tetracyclines and their epimers by LC-MS/MS based on a liquid-liquid extraction with low temperature partitioning. AB - An LC-MS/MS method is presented for screening five tetracyclines and their epimers in a broad range of food products. The scope of matrices includes meat-, fish-, seafood-based products, various dairy ingredients, infant formulae and fats. The method principle is based on a liquid-liquid extraction with aqueous ethylenediaminetetraacetic acid (EDTA) and acetonitrile followed by a freezing step to promote phase separation at low temperature. After defatting with hexane, sample extracts were evaporated and reconstituted before injection onto the LC MS/MS system. The addition of oxalic acid in the aqueous mobile phase was mandatory to maintain good peak shape and sensitivity over the run. The screening is based upon a double preparation of each sample, one 'as such' and a second one with the analytes spiked in the sample, in order to mitigate the risk of false negative response. The method was validated according to the European Community Reference Laboratories Residues Guidelines. A total of 93 samples were included in the validation by two independent laboratories giving both false-negative and false-positive rates at 0% for all compounds. Over the last two years, 2600 samples were analysed routinely and only one chicken sample was found above the regulatory limit. PMID- 29337660 TI - Guidance for Evaluating the Safety of Experimental Releases of Mosquitoes, Emphasizing Mark-Release-Recapture Techniques. AB - Experimental releases of mosquitoes are performed to understand characteristics of populations related to the biology, ability to transmit pathogens, and ultimately their control. In this article, we discuss considerations related to the safety of experimental releases of living mosquitoes, applying principles of good practice in vector biology that protect human health and comfort. We describe specific factors of experimental releases of mosquitoes that we believe are critical to inform institutional biosafety committees and similar review boards to which proposals to conduct mosquito release experiments have been submitted. In this study, "experimental releases" means those that do not significantly increase vector capacity or nuisance biting relative to the unperturbed natural baseline. This document specifically does not address releases of mosquitoes for ongoing control programs or trials of new control methods for which broader assessments of risk are required. It also does not address releases of transgenic or exotic (non-native) mosquito species, both of which require particular regulatory approval. Experimental releases may include females and males and evaluation must consider their effects based on the number released, their genotype and phenotype, the environment into which they are released, and postrelease collection activities. We consider whether increases of disease transmission and nuisance biting might result from proposed experimental releases against the backdrop of natural population size variation. We recommend that experimental releases be conducted in a manner that can be reasonably argued to have insignificant negative effects. Reviewers of proposals for experimental releases should expect applicants to provide such an argument based on evidence from similar studies and their planned activities. This document provides guidance for creating and evaluating such proposals. PMID- 29337661 TI - Maintaining Quality of Candidate Strains of Transgenic Mosquitoes for Studies in Containment Facilities in Disease Endemic Countries. AB - Transgenic mosquitoes are being developed as novel components of area-wide approaches to vector-borne disease control. Best practice is to develop these in phases, beginning with laboratory studies, before moving to field testing and inclusion in control programs, to ensure safety and prevent costly field testing of unsuitable strains. The process of identifying and developing good candidate strains requires maintenance of transgenic colonies over many generations in containment facilities. By working in disease endemic countries with target vector populations, laboratory strains may be developed and selected for properties that will enhance intended control efficacy in the next phase, while avoiding traits that introduce unnecessary risks. Candidate strains aiming toward field use must consistently achieve established performance criteria, throughout the process of scaling up from small study colonies to production of sufficient numbers for field testing and possible open release. Maintenance of a consistent quality can be demonstrated by a set of insect quality and insectary operating indicators, measured over time at predetermined intervals. These indicators: inform comparability of studies using various candidate strains at different times and locations; provide evidence of conformity relevant to compliance with terms of approval for regulated use; and can be used to validate some assumptions related to risk assessments covering the contained phase and for release into the environment. PMID- 29337663 TI - Genetically Engineered Mosquitoes for Pathogen Control. PMID- 29337662 TI - Studies of Transgenic Mosquitoes in Disease-Endemic Countries: Preparation of Containment Facilities. AB - Novel approaches to area-wide control of vector species offer promise as additional tools in the fight against vectored diseases. Evaluation of transgenic insect strains aimed at field population control in disease-endemic countries may involve international partnerships and should be done in a stepwise approach, starting with studies in containment facilities. The preparations of both new build and renovated facilities are described, including working with local and national regulations regarding land use, construction, and biosafety requirements, as well as international guidance to fill any gaps in regulation. The examples given are for containment categorization at Arthropod Containment Level 2 for initial facility design, classification of wastes, and precautions during shipping. Specific lessons were derived from preparations to evaluate transgenic (non-gene drive) mosquitoes in West and East African countries. Documented procedures and the use of a non-transgenic training strain for trial shipments and culturing were used to develop competence and confidence among the African facility staff, and along the chain of custody for transport. This practical description is offered to support other research consortia or institutions preparing containment facilities and operating procedures in conditions where research on transgenic insects is at an early stage. PMID- 29337664 TI - Containment Studies of Transgenic Mosquitoes in Disease Endemic Countries: The Broad Concept of Facilities Readiness. AB - Genetic strategies for large scale pest or vector control using modified insects are not yet operational in Africa, and currently rely on import of the modified strains to begin preliminary, contained studies. Early involvement of research teams from participating countries is crucial to evaluate candidate field interventions. Following the recommended phased approach for novel strategies, evaluation should begin with studies in containment facilities. Experiences to prepare facilities and build international teams for research on transgenic mosquitoes revealed some important organizing themes underlying the concept of "facilities readiness," or the point at which studies in containment may proceed, in sub-Saharan African settings. First, "compliance" for research with novel or non-native living organisms was defined as the fulfillment of all legislative and regulatory requirements. This is not limited to regulations regarding use of transgenic organisms. Second, the concept of "colony utility" was related to the characteristics of laboratory colonies being produced so that results of studies may be validated across time, sites, and strains or technologies; so that the appropriate candidate strains are moved forward toward field studies. Third, the importance of achieving "defensible science" was recognized, including that study conclusions can be traced back to evidence, covering the concerns of various stakeholders over the long term. This, combined with good stewardship of resources and appropriate funding, covers a diverse set of criteria for declaring when "facilities readiness" has been attained. It is proposed that, despite the additional demands on time and resources, only with the balance of and rigorous achievement of each of these organizing themes can collaborative research into novel strategies in vector or pest control reliably progress past initial containment studies. PMID- 29337665 TI - Safety of intravenous tranexamic acid in patients undergoing majororthopaedic surgery: a meta-analysis of randomised controlled trials. AB - Among the various pharmacological options to decrease peri-operative bleeding, tranexamic acid appears to be one of the most interesting. Several trials have consistently documented the efficacy of this synthetic drug in reducing the risk of blood loss and the need for allogeneic blood transfusion in patients undergoing total hip and knee arthroplasty. The safety of intravenous tranexamic acid in major orthopaedic surgery, particularly regarding the risk of venous thromboembolism, was systematically analysed in this review. A systematic search of the literature identified 73 randomised controlled trials involving 4,174 patients and 2,779 controls. The raw overall incidence of venous thromboembolism was 2.1% in patients who received intravenous tranexamic acid and 2.0% in controls. A meta-analytic pooling showed that the risk of venous thromboembolism in tranexamic acid-treated patients was not significantly different from that of controls (risk difference: 0.01%, 95% confidence interval [CI]: -0.05%, 0.07%; risk ratio: 1.067, 95% CI: 0.760-1.496). Other severe drug-related adverse events occurred very rarely (0.1%). In conclusion, the results of this systematic review and meta-analysis show that intravenous tranexamic acid is a safe pharmacological treatment to reduce blood loss and transfusion requirements in patients undergoing major orthopaedic surgery. PMID- 29337666 TI - Tuning of in vivo cognate B-T cell interactions by Intersectin 2 is required for effective anti-viral B cell immunity. AB - Wiskott-Aldrich syndrome (WAS) is an immune pathology associated with mutations in WAS protein (WASp) or in WASp interacting protein (WIP). Together with the small GTPase Cdc42 and other effectors, these proteins participate in the remodelling of the actin network downstream of BCR engagement. Here we show that mice lacking the adaptor protein ITSN2, a G-nucleotide exchange factor (GEF) for Cdc42 that also interacts with WASp and WIP, exhibited increased mortality during primary infection, incomplete protection after Flu vaccination, reduced germinal centre formation and impaired antibody responses to vaccination. These defects were found, at least in part, to be intrinsic to the B cell compartment. In vivo, ITSN2 deficient B cells show a reduction in the expression of SLAM, CD84 or ICOSL that correlates with a diminished ability to form long term conjugates with T cells, to proliferate in vivo, and to differentiate into germinal centre cells. In conclusion, our study not only revealed a key role for ITSN2 as an important regulator of adaptive immune-response during vaccination and viral infection but it is also likely to contribute to a better understanding of human immune pathologies. PMID- 29337668 TI - Solving manufacturing problems for L-carnitine-L-tartrate to improve the likelihood of successful product scale-up. AB - L-carnitine-L-tartrate, a non-essential amino acid, is hygroscopic. This causes a problem in tablet production due to pronounced adhesion of tablets to punches. A 33 full factorial design was adopted to suggest a tablet formulation. Three adsorbents were suggested (Aerosil 200, Aerosil R972, talc) to reduce stickiness at three concentrations (1, 3 and 5 %), and three fillers (mannitol, Avicel PH 101, Dibasic calcium phosphate) were chosen to prepare 27 formulations. Micromeritic properties of formulations were studied, and tablets were prepared by wet granulation. Absence of picking, sticking or capping, recording of sufficient hardness, acceptable friability and tablet ejection force indicated formulation success. The resulting formulation prepared using Avicel PH 101 and 1 % Aerosil 200 was submitted to further investigation in order to choose the most suitable compression conditions using a 33 full factorial design. Variables included compression force, tableting rate and magnesium stearate (lubricant) concentration. The formulation prepared at compression force of 25 kN, using 2 % magnesium stearate, at a production rate of 30 tablets/ minute, was found to be the most appropriate scale up candidate. PMID- 29337667 TI - Revised roles of ISL1 in a hES cell-based model of human heart chamber specification. AB - The transcription factor ISL1 is thought to be key for conveying the multipotent and proliferative properties of cardiac precursor cells. Here, we investigate its function upon cardiac induction of human embryonic stem cells. We find that ISL1 does not stabilize the transient cardiac precursor cell state but rather serves to accelerate cardiomyocyte differentiation. Conversely, ISL1 depletion delays cardiac differentiation and respecifies nascent cardiomyocytes from a ventricular to an atrial identity. Mechanistic analyses integrate this unrecognized anti atrial function of ISL1 with known and newly identified atrial inducers. In this revised view, ISL1 is antagonized by retinoic acid signaling via a novel player, MEIS2. Conversely, ISL1 competes with the retinoic acid pathway for prospective cardiomyocyte fate, which converges on the atrial specifier NR2F1. This study reveals a core regulatory network putatively controlling human heart chamber formation and also bears implications for the subtype-specific production of human cardiomyocytes with enhanced functional properties. PMID- 29337669 TI - Gastroprotective effects of the isopropanol extract of Artemisia princeps and its gastroretentive floating tablets on gastric mucosal injury. AB - In this study, we investigated the gastroprotective effect of an isopropanol extract from the aerial parts of Artemisia princeps (IPAP) and developed a gastroretentive floating tablet of IPAP (IPAP-FR) for maximized local gastroprotective effects. Pre-treatment with IPAP ameliorated the gastric mucosal hemorrhagic lesions in ethanol/HCl- or indomethacin- treated rats. IPAP decreased mucosal hemorrhage of gastric ulcers induced by ethanol or indomethacin plus pyloric ligation in rats. The optimized floating tablet, IPAP-FR, floated on medium surface with more sustained eupatilin release compared to the non-floating control tablet. X-ray photographs in beagle dogs showed that IPAPFR was retained for > 2 h in the stomach. In the ethanol-induced gastric ulcer rat model, the gastric hemorrhagic lesion was improved more substantially with IPAP-FR compared to the non-floating control tablet. Based on these data, our data suggest that IPAP-FR has an improved therapeutic potential for the treatment of gastric ulcer. PMID- 29337670 TI - Sustained release biodegradable solid lipid microparticles: Formulation, evaluation and statistical optimization by response surface methodology. AB - For preparing nebivolol loaded solid lipid microparticles (SLMs) by the solvent evaporation microencapsulation process from carnauba wax and glyceryl monostearate, central composite design was used to study the impact of independent variables on yield (Y1), entrapment efficiency (Y2) and drug release (Y3). SLMs having a 10-40 MUm size range, with good rheological behavior and spherical smooth surfaces, were produced. Fourier transform infrared spectroscopy, differential scanning calorimetry and X-ray diffractometry pointed to compatibility between formulation components and the zeta-potential study confirmed better stability due to the presence of negative charge (-20 to -40 mV). The obtained outcomes for Y1 (29-86 %), Y2 (45-83 %) and Y3 (49-86 %) were analyzed by polynomial equations and the suggested quadratic model were validated. Nebivolol release from SLMs at pH 1.2 and 6.8 was significantly (p < 0.05) affected by lipid concentration. The release mechanism followed Higuchi and zero order models, while n > 0.85 value (Korsmeyer- Peppas) suggested slow erosion along with diffusion. The optimized SLMs have the potential to improve nebivolol oral bioavailability. PMID- 29337671 TI - Spectrophotometric method for simultaneous determination of valsartan and substances from the group of statins in binary mixtures. AB - Applicability of derivative spectrophotometry for the determination of valsartan in the presence of a substance from the group of statins was checked. The obtained results indicate that the proposed method may be effective by using appropriate derivatives: for valsartan and fluvastatin - D1, D2 and D3, for valsartan and pravastatin - D1 and D3, for valsartan and atorvastatin - D2 and D3. The method was characterized by high sensitivity and accuracy. Linearity was maintained in the following ranges: 9.28-32.48 mg mL-1 for valsartan, 8.16-28.56 mg mL-1 f or fluvastatin, 14.40-39.90 mg mL-1 for atorvastatin and 9.60-48.00 mg mL-1 for pravastatin. Determination coefficients were in the range of 0.989-0.999 depending on the analyte and the order of derivative. The precision of the method was high with RSD from 0.1 to 2.5 % and recovery of individual components was within the range of 100 +/- 5 %. The developed method was successfully applied to the determination of valsartan combined with fluvastatin, atorvastatin and pravastatin in laboratory prepared mixtures and in pharmaceutical preparations. PMID- 29337672 TI - Influence of plasma on the physical properties of ointments with quercetin. AB - Effects of two independent variables - the content of quercetin (0 or 1 or 1.5 or 5 %) and the content of plasma (0 or 2 or 4 or 6 %) - on the organoleptic properties and rheological parameters of model formulations prepared on an amphiphilic base were estimated. The consistency of all ointments was uniform, and the content of quercetin and plasma lay within the predefined range. Tested ointments are non-Newtonian systems. The content of quercetin and plasma was found to have a significant effect on the rheological properties of the ointments. An increase in the content of plasma in ointments was accompanied by a significant increase in their hardness, viscosity and shear stress and a reduction of their spreadability. The best rheological properties were shown by formulation F-3, containing 1.5 % of quercetin and 2 % of plasma. PMID- 29337673 TI - Evaluation of immunomodulatory effects of lamotrigine in BALB/c mice. AB - Modulation of the immune system has recently been shown to be involved in the pharmacological effects of old antiepileptic drugs and in the pathogenesis of epilepsy. Therefore, the most recent guidelines for immunotoxicological evaluation of drugs were consulted to investigate the immunomodulatory effects of lamotrigine, a newer antiepileptic drug, in BALB/c mice. These included the in vivo effects of lamotrigine on delayed-type hypersensitivity (DTH) response to sheep red blood cell (SRBC) antigens, hemagglutination titer assays and hematological changes. In vitro effects of lamotrigine on ConA-induced splenocyte proliferation and cytokine secretion were assessed. The results showed that lamotrigine treatment significantly increased the DTH response to SRBC in the mouse model of this study. This was accompanied by a significant increase in relative monocyte and neutrophil counts and in spleen cellularity. Lamotrigine significantly inhibited ConA-induced splenocyte proliferation in vitro and it significantly inhibited IL-2 and TNF-alpha secretion in ConA-stimulated splenocytes. In conclusion, the results demonstrated significant immunomodulatory effects of lamotrigine in BALB/c mice. These data could expand the understanding of lamotrigine-induced adverse reactions and its role in modulating the immune system in epilepsy. PMID- 29337674 TI - A study on blocking store-operated Ca2+ entry in pulmonary arterial smooth muscle cells with xyloketals from marine fungi. AB - In this study, the effect of four xyloketals 1-4 on store-operated calcium entry (SOCE) was investigated in primary distal pulmonary arterial smooth muscle cells (PASMCs) isolated from mice. The results showed that xyloketal A (1), an unusual ketal with C-3 symmetry, exhibited strong SOCE blocking activity. Secretion of interleukin-8 (IL-8) was also inhibited by xyloketal A. The parallel artificial membrane permeability assay (PAMPA) of 1-4 suggested that these xyloketals penetrated easily through the cell membrane. Moreover, the molecular docking study of xyloketal A with activation region of the stromal interaction molecule (STIM) 1 and the calcium release-activated calcium modulator (ORAI) 1 (STIM1 ORAI1) protein complex, the key domain of SOCE, revealed that xyloketal A exhibited a noncovalent interaction with the key residue lysine 363 (LYS363) in the identified cytosolic regions in STIM1-C. These findings provided useful information about xyloketal A as a SOCE inhibitor for further evaluation. PMID- 29337675 TI - Synthesis and evaluation of antitumor activity of new 4-substituted thieno[3,2 d]pyrimidine and thienotriazolopyrimidine derivatives. AB - 3-Methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[3,2-d]pyrimidin- 4(1H)-one (2), on treatment with phosphorous oxychoride, affored 4-chloro-3-methyl-6-phenyl thieno[3,2-d]pyrimidine- 2(3H)-thione (3). A series of novel 6-phenyl-thieno[3,2 d]pyrimidine derivatives 4-9 bearing different functional groups were synthesized via treatment of compound 3 with different reagents. On the other hand, compound 2 was used to synthesize ethyl-[(3-methyl-6-phenyl-2-thioxo-2,3-dihydrothieno[ 3,2-d]pyrimidin-4-yl)-oxy]acetate (10), 2-hydrazinyl- -3-methyl-6-phenyl thieno[3,2-d]pyrimidin-4(3H)-one (11), 3-methyl-2-(methyl-sulfanyl)-6-phenyl thieno[3,2-d]pyrimidin- 4(3H)-one (12) and N-(phenyl)/4-chlorophenyl or methoxy- phenyl)-2-[(3-methyl-4-oxo-6-phenyl-3,4-dihydrothieno[ 3,2-d]pyrimidin-2-yl) sulfanyl]-acetamide (13a-c). In addition, compound 12 was used to synthesize thieno[1,2,4] triazolopyrimidine derivatives 14 and 15 and 3-methyl-2-(methyl sulfonyl)-6-phenyl-thieno[3,2-d]pyrimidin-4(3H)-one (16) through the reaction with the respective reagents. Moreover, the reaction of 16 with 4 phenylenediamine gave 2-[(4-aminophenyl)-amino]-3-methyl-6-phenyl-thieno[3,2-d] pyrimidin-4(3H)-one (17), which reacted with methanesulfonyl chloride to afford N {4-[(3-methyl-4-oxo-6-phenyl-3H,4H- -thieno[3,2-d]pyrimidin-2-yl)-amino]phenyl} methanesulfonamide (18). The majority of the newly synthesized compounds displayed potent anticancer activity, comparable to that of doxorubicin, on three human cancer cell lines, including the human breast adenocarcinoma cell line (MCF 7), cervical carcinoma cell line (HeLa) and colonic carcinoma cell line (HCT- 116). Compounds 18, 13b and 10 were nearly as active as doxorubicin whereas compounds 6, 7b and 15 exhibited marked growth inhibition, but still lower than doxorubicin. PMID- 29337677 TI - Synthesis and cytotoxicity evaluation of thiazole derivatives obtained from 2 amino-4,5,6,7-tetrahydrobenzo[b]thiophene- 3-carbonitrile. AB - Reactivity of 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3- carbonitrile towards thioglycolic acid resulted in thiazole derivative 1. The latter reacted with different chemical reagents to give thiazole, pyrano[2,3-d]thiazole and thiazolo[ 4,5-d]thiazole derivatives. Cytotoxicity effects of the newly synthesized products against six cancer cell lines, namely, human gastric cancer (NUGC), human colon cancer (DLD- 1), human liver cancer (HA22T and HEPG-2), human breast cancer (MCF) and nasopharyngeal carcinoma (HONE-1) as well as against a normal fibroblast cell (WI-38) were evaluated. The study showed that the 4,5,6,7 tetrahydrobenzo[ b] thiophene derivatives 6a, 7, 8a,b, 9b and 10b,c w ere t he most active compounds. Their potencies were attributed to the presence of the electron withdrawing groups. PMID- 29337676 TI - Alkyl polyglucoside vs. ethoxylated surfactant-based microemulsions as vehicles for two poorly water-soluble drugs: physicochemical characterization and in vivo skin performance. AB - Two types of biocompatible surfactants were evaluated for their capability to formulate skin-friendly/non-irritant microemulsions as vehicles for two poorly water-soluble model drugs differing in properties and concentrations: alkyl polyglucosides (decyl glucoside and caprylyl/capryl glucoside) and ethoxylated surfactants (glycereth-7-caprylate/ caprate and polysorbate 80). Phase behavior, structural inversion and microemulsion solubilization potential for sertaconazole nitrate and adapalene were found to be highly dependent on the surfactants structure and HLB value. Performed characterization (polarized light microscopy, pH, electrical conductivity, rheological, FTIR and DSC measurements) indicated a formulation containing glycereth- 7-caprylate/caprate as suitable for incorporation of both drugs, whereas alkyl polyglucoside-based systems did not exhibit satisfying solubilization capacity for sertaconazole nitrate. Further, monitored parameters were strongly affected by sertaconazole nitrate incorporation, while they remained almost unchanged in adapalene-loaded vehicles. In addition, results of the in vivo skin performance study supported acceptable tolerability for all investigated formulations, suggesting selected microemulsions as promising carriers worth exploring further for effective skin delivery of model drugs. PMID- 29337678 TI - Salivary sCD14 as a potential biomarker of dental caries activity in adults. AB - CD14 is a co-receptor involved in the recognition of Gram-negative and Gram positive bacteria, the latter known to cause dental caries. The aim of this study was to determine whether soluble CD14 (sCD14) in saliva was associated with caries activity and the collection method from the saliva. The study included 55 participants aged 20 to 40 years, 30 with dental caries and 25 caries-free controls. We collected 110 saliva samples in total, 55 of resting saliva and 55 of mechanically stimulated saliva. Median levels of sCD14, measured with a matrix matched enzyme-linked immunosorbent assay (ELISA), were higher in the caries active than in the caries-free group in either resting (203.3 vs.167.9 ng mL-1; P<0.01) or stimulated saliva (201 vs.105.7 ng mL-1; P<0.01). The resting salivary flow rate was lower in the caries-active than caries-free group (0.61+/-0.42 vs. 0.98+/-0.52 mL min-1; P<0.01). Hyposalivation was observed only in the caries active group (10 and 13 % in stimulated and resting saliva, respectively). Higher salivary sCD14 levels and secretion rates were clearly associated with dental caries and resting saliva. Future studies should focus on the clinical utility of salivary sCD14 as a potential biomarker and predictor of future caries events. PMID- 29337679 TI - The effects of physical activity on chronic subclinical systemic inflammation. AB - Chronic subclinical systemic inflammation (CSSI) is a pathogenic event and a common risk factor for many noncommunicable diseases like atherosclerosis, metabolic syndrome, cardiovascular disease, insulin resistance and type 2 diabetes, cancer, and obstructive lung disease. On the other hand, regular physical activity has been found to reduce this risk. Many studies of different design were conducted to assess the association between inflammatory mediators as markers of CSSI and regular physical activity. The aim of this review was to present the current level of evidence and understanding of potential mechanisms by which physical activity reduces inflammatory mediators involved in CSSI and the types of physical activity required for the expected effect. We have found that observational studies consistently report a positive association between regular physical activity and lower CSSI, but the design of these studies does not allow to infer a causal relationship. Interventional studies, in contrast, were not consistent about the causal relationship between regular physical activity and lower CSSI. The problem in interpreting these results lies in significant differences between these interventional studies in their design, sample size, study population, and intervention itself (intensity and extent, follow up, weight loss). We can conclude that the scientific community has to invest a significant effort into high-quality interventional trials focused on finding the type, intensity, and extent of physical activity that would produce the most favourable effect on CSSI. PMID- 29337680 TI - In vitro assessment of the cytotoxic, DNA damaging, and cytogenetic effects of hydroquinone in human peripheral blood lymphocytes. AB - This study investigated the mechanisms of hydroquinone toxicity and assessed the relationships between its cytotoxic, genotoxic, and cytogenetic effects tested at 8, 140, and 280 MUg mL-1 in human peripheral blood lymphocytes exposed for 24 h. The outcomes of the treatments were evaluated using the apoptosis/necrosis assay, the alkaline comet assay, and the cytokinesis-block micronucleus (CBMN) cytome assay. The tested hydroquinone concentrations produced relatively weak cytotoxicity in resting lymphocytes, which mostly died via apoptosis. Hydroquinone's marked genotoxic effects were detected using the alkaline comet assay. Significantly decreased values of all comet parameters compared to controls indicated specific mechanisms of hydroquinone-DNA interactions. Our results suggest that the two higher hydroquinone concentrations possibly led to cross-linking and adduct formation. Increased levels of DNA breakage measured following exposure to the lowest concentration suggested mechanisms related to oxidative stress and inhibition of topoisomerase II. At 8 MUg mL-1, hydroquinone did not significantly affect MN formation. At 140 and 280 MUg mL-1, it completely blocked lymphocyte division. The two latter concentrations also led to erythrocyte stabilization and prevented their lysis. At least two facts contribute to this study's relevance: (I) this is the first study that quantifies the degree of reduction in total comet area measured in lymphocyte DNA after hydroquinone treatment, (II) it is also the first one on a lymphocyte model that adopted the "cytome" protocol in an MN assay and found that lymphocytes exposure even to low hydroquinone concentration resulted in a significant increase of nuclear bud frequency. Considering the limitations of the lymphocyte model, which does not possess intrinsic metabolic activation, in order to unequivocally prove the obtained results further studies using other appropriate cell lines are advised. PMID- 29337681 TI - Dissipation dynamics of terbuthylazine in soil during the maize growing season. AB - Ever since terbuthylazine (TBA) replaced atrazine in herbicide crop treatment, its much greater persistence has raised considerable environmental concern. The aim of our field experiment was to establish the dissipation dynamics of TBA and its degradation product desethylterbuthylazine (DET) in soil over five months of maize growth. We applied TBA as part of pre-emergent treatment in the regular and double-the-regular amounts. Soil samples were collected periodically at the following depths: 0-10 cm, 10-20 cm, 20-30 cm, and 30-50 cm. For TBA and DET soil residue analysis we used microwave-assisted extraction with methanol, followed by HPLC-UV/DAD. Regardless of the application rate, more than 80 % of the applied TBA dissipated from the first 50 cm of soil in the two months after herbicide application and 120 mm of rainfall. Three months later (at maize harvest), less than 4 % of total TBA remained in the soil, mostly in the top 20 cm rich with organic carbon on which TBA is likelier to adsorb. The loss of TBA from soil coincided with the rise in DET, especially the top soil layers, during the periods of low rainfall and highest soil temperatures. This points to biodegradation as the main route of TBA dissipation in humic soils. The applied amount had no significant effect on TBA dissipation in the top (humic) layers, but in the layers with less than 1 % of organic carbon, it was higher when the doublethe- regular dose was applied. PMID- 29337682 TI - Adverse effects of organophosphorus pesticides on the liver: a brief summary of four decades of research. AB - Organophosphorus pesticides (OPs) are widely used volatile pesticides that have harmful effects on the liver in acute and chronic exposures. This review article summarises and discusses a wide collection of studies published over the last 40 years reporting on the effects of OPs on the liver, in an attempt to propose general mechanisms of OP hepatotoxicity and possible treatment. Several key biological processes have been reported as involved in OP-induced hepatotoxicity such as disturbances in the antioxidant defence system, oxidative stress, apoptosis, and mitochondrial and microsomal metabolism. Most studies show that antioxidants can attenuate oxidative stress and the consequent changes in liver function. However, few studies have examined the relationship between OP structures and the severity and mechanism of their action. We hope that future in vitro, in vivo, and clinical trials will answer the remaining questions about the mechanisms of OP hepatotoxicity and its management. PMID- 29337683 TI - How protein coronas determine the fate of engineered nanoparticles in biological environment. AB - Nanomedicine is a booming medical field that utilises nanoparticles (NPs) for the development of medicines, medical devices, and diagnostic tools. The behaviour of NPs in vivo may be quite complex due to their interactions with biological molecules. These interactions in biological fluids result in NPs being enveloped by dynamic protein coronas, which serve as an interface between NPs and their environment (blood, cell, tissue). How will the corona interact with this environment will depend on the biological, chemical, and physical properties of NPs, the properties of the proteins that make the corona, as well as the biological environment. This review summarises the main characteristics of protein corona and describes its dynamic nature. It also presents the most common analytical methods to study the corona, including examples of protein corona composition for the most common NPs used in biomedicine. This knowledge is necessary to design NPs that will create a corona with a desired efficiency and safety in clinical use. PMID- 29337684 TI - Hepatotoxicity associated with statins. AB - Treatment with statins is known all over the world. They are generally considered safe at therapeutic doses. Nevertheless, clinical trials are not enough to assess their scarce adverse effects such as idiosyncratic drug induced liver injury (DILI). Due to some conditions, such as concomitant usage (drug-drug interaction using an identical metabolising enzyme) and genetic polymorphisms, there is an increasing concern about their safety. Hepatotoxicity and rhabdomyolysis have begun to appear in published studies. Most of investigations have focused on both these adverse effects and mechanisms of drug induced toxicity. The present review has attempted to compile almost all of the existing studies on the hepatotoxicity of statins but not rhabdomyolysis. The aim of our study is to provide an overview of the studies on the statin-associated hepatotoxicity and to discuss the published studies. The researchers are of the opinion that the research on this topic is incomplete but extremely necessary. PMID- 29337685 TI - Radiological risk assessment: an overview of the ERICA Integrated Approach and the ERICA Tool use. AB - The ERICA project (Environmental Risk from Ionising Contaminants: Assessment and Management) was co-funded by the European Union as part of the 6th Framework Programme (FP EURATOM). The project was carried out between 2004 and 2007 as the collective work of 15 organisations in seven European countries. Two significant outputs of the project are the ERICA Integrated Approach and the ERICA Tool. The ERICA Integrated Approach consists of three elements: assessment, risk characterisation and management. The ERICA Tool is a practical implementation of the assessment component of the ERICA Integrated Approach and has a three-tier structure. The aim of this review paper is to give a concise overview of ERICA project outputs and their structure, updates done since their first release in 2007, as well as to provide a context for their practical application in environmental radiation protection and radiological risk assessments for various engineering scenarios. PMID- 29337686 TI - Forgotten public health impacts of cancer - an overview. AB - Cancer is one of the diseases of greatest concern in developed countries and much effort has been invested in discovering and developing therapeutics for curing cancer. Despite the improvements in antineoplastic therapeutics in the last decades, cancer is still one of the most harmful diseases worldwide. The global burden of cancer also implies financial costs: these can be direct costs, such as those related to treatment, care, and rehabilitation and indirect, which include the loss of economic output due to missed work (morbidity costs) and premature death (mortality costs). There are also hidden costs such as health insurance premiums and nonmedical expenses that are worth noting. This paper intends to present an overview of the generally forgotten impacts that the increasing number of cancer cases can have on the environment, workers who handle antineoplastic drugs, and health services. The knowledge available of each of the impacts will be addressed and discussed regarding the expected development. Overall, lessons learnt reflect on the impact of cancer through aspects not commonly evidenced in the literature or even considered in socio-economic analysis, in part due to the fact that these are difficult to contemplate in direct and indirect cancer costs already defined. Attention may be drawn to the need of continuous investment in prevention to reduce the negative impact on the environment, and in the health of workers who handle antineoplastic drugs for patients' treatment. PMID- 29337687 TI - Comparison of the solid phase and liquid-liquid extraction methods for methadone determination in human serum and whole blood samples using gas chromatography/mass spectrometry. AB - The aim of this study was to determine the optimal biological sample and the optimal extraction technique for monitoring methadone concentrations in biological samples. We analysed methadone in serum and whole blood samples using gas chromatography/mass spectrometry (GC/MS). Before analysis, we compared five solid-phase extraction (SPE) and two liquid-liquid extraction (LLE) methods and determined that SPE with Supelco LC-18 in serum yielded the best extraction efficiency. The limit of detection was 10 ng mL-1 and the limit of quantification 25 ng mL-1. Correlation coefficient was over 0.999 for the methadone calibration curve in linear range from 50 to 2000 ng mL-1. Intra and inter-day accuracy and precision of the method was satisfactory. The method was successfully applied for determining serum methadone in patients on maintenance therapy. PMID- 29337688 TI - Interaction of the middle domains stabilizes Hsp90alpha dimer in a closed conformation with high affinity for p23. AB - The human genome encodes two highly similar cytosolic Hsp90 proteins called isoforms Hsp90alpha and Hsp90beta. Of the 300 client proteins for Hsp90 identified so far only a handful interact specifically with one Hsp90 isoform. Here we report for the first time that Hsp90 cochaperone p23 binds preferentially to Hsp90alpha and that this interaction is mediated by the middle domain of Hsp90alpha. Based on the homology modeling, we infer that the middle domains in the Hsp90alpha dimer bind stronger with each other than in the Hsp90beta dimer. Therefore, compared to Hsp90beta, Hsp90alpha may adopt closed conformation more easily. Hsp90 interacts with p23 in the closed conformation. Hsp90alpha binds human recombinant p23 about three times stronger than Hsp90beta but with significantly smaller exothermic enthalpy as determined by isothermal titration calorimetry of direct binding between the purified proteins. As p23 binds to Hsp90 in a closed conformation, stabilization of the Hsp90alpha dimer in the closed conformation by its middle domains explains preference of p23 to this Hsp90 isoform. PMID- 29337689 TI - Abeta42 oligomers impair the bioenergetic activity in hippocampal synaptosomes derived from APP-KO mice. AB - Employing hippocampal synaptosomes from amyloid precursor protein (APP)-deleted mice we analyzed the immediate effects of amyloid beta peptide 42 (Abeta42) peptide in its oligomeric or fibrillar assembly or of soluble amyloid precursor protein alpha (sAPPalpha) protein on their bioenergetic activity. Upon administration of oligomeric Abeta42 peptide for 30 min we observed a robust decrease both in mitochondrial activity and in mitochondrial membrane potential (MMP). In contrast the respective fibrillary or scrambled peptides showed no effect, indicating that inhibition strictly depends on the oligomerization status of the peptide. Hippocampal synaptosomes from old APP-KO mice revealed a further reduction of their already impaired bioenergetic activity upon incubation with 10 MUm Abeta42 peptide. In addition we evaluated the influence of the sAPPalpha protein on mitochondrial activity of hippocampal synaptosomes derived from young or old APP-KO animals. In neither case 20 nm nor 200 nm sAPPalpha protein had an effect on mitochondrial metabolic activity. Our findings demonstrate that hippocampal synaptosomes derived from APP-KO mice are a most suitable model system to evaluate the impact of Abeta42 peptide on its bioenergetic activity and to further elucidate the molecular mechanisms underlying the impairments by oligomeric Abeta42 on mitochondrial function. Our data demonstrate that extracellular Abeta42 peptide is taken up into synaptosomes where it immediately attenuates mitochondrial activity. PMID- 29337690 TI - Molecular determinants of Drosophila immunophilin FKBP39 nuclear localization. AB - FK506-binding proteins (FKBPs) belong to a distinct class of immunophilins that interact with immunosuppressants. They use their peptidyl-prolyl isomerase (PPIase) activity to catalyze the cis-trans conversion of prolyl bonds in proteins during protein-folding events. FKBPs also act as a unique group of chaperones. The Drosophila melanogaster peptidyl-prolyl cis-trans isomerase FK506 binding protein of 39 kDa (FKBP39) is thought to act as a transcriptional modulator of gene expression in 20-hydroxyecdysone and juvenile hormone signal transduction. The aim of this study was to analyze the molecular determinants responsible for the subcellular distribution of an FKBP39-yellow fluorescent protein (YFP) fusion construct (YFP-FKBP39). We found that YFP-FKBP39 was predominantly nucleolar. To identify the nuclear localization signal (NLS), a series of YFP-tagged FKBP39 deletion mutants were prepared and examined in vivo. The identified NLS signal is located in a basic domain. Detailed mutagenesis studies revealed that residues K188 and K191 are crucial for the nuclear targeting of FKBP39 and its nucleoplasmin-like (NPL) domain contains the sequence that controls the nucleolar-specific translocation of the protein. These results show that FKBP39 possesses a specific NLS in close proximity to a putative helix turn-helix (HTH) motif and FKBP39 may bind DNA in vivo and in vitro. PMID- 29337691 TI - The neutral sphingomyelinase 2 in T cell receptor signaling and polarity. AB - By hydrolyzing its substrate sphingomyelin at the cytosolic leaflet of cellular membranes, the neutral sphingomyelinase 2 (NSM2) generates microdomains which serve as docking sites for signaling proteins and thereby, functions to regulate signal relay. This has been particularly studied in cellular stress responses while the regulatory role of this enzyme in the immune cell compartment has only recently emerged. In T cells, phenotypic polarization by co-ordinated cytoskeletal remodeling is central to motility and interaction with endothelial or antigen-presenting cells during tissue recruitment or immune synapse formation, respectively. This review highlights studies adressing the role of NSM2 in T cell polarity in which the enzyme plays a major role in regulating cytoskeletal dynamics. PMID- 29337692 TI - Generation of superoxide and hydrogen peroxide by side reactions of mitochondrial 2-oxoacid dehydrogenase complexes in isolation and in cells. AB - Mitochondrial 2-oxoacid dehydrogenase complexes oxidize 2-oxoglutarate, pyruvate, branched-chain 2-oxoacids and 2-oxoadipate to the corresponding acyl-CoAs and reduce NAD+ to NADH. The isolated enzyme complexes generate superoxide anion radical or hydrogen peroxide in defined reactions by leaking electrons to oxygen. Studies using isolated mitochondria in media mimicking cytosol suggest that the 2 oxoacid dehydrogenase complexes contribute little to the production of superoxide or hydrogen peroxide relative to other mitochondrial sites at physiological steady states. However, the contributions may increase under pathological conditions, in accordance with the high maximum capacities of superoxide or hydrogen peroxide-generating reactions of the complexes, established in isolated mitochondria. We assess available data on the use of modulations of enzyme activity to infer superoxide or hydrogen peroxide production from particular 2 oxoacid dehydrogenase complexes in cells, and limitations of such methods to discriminate specific superoxide or hydrogen peroxide sources in vivo. PMID- 29337693 TI - In vitro reconstitution and biochemical characterization of human phospholipid scramblase 3: phospholipid specificity and metal ion binding studies. AB - Human phospholipid scramblase 3 (hPLSCR3) is a single pass transmembrane protein that plays a vital role in fat metabolism, mitochondrial function, structure, maintenance and apoptosis. The mechanism of action of scramblases remains still unknown, and the role of scramblases in phospholipid translocation is heavily debated. hPLSCR3 is the only member of scramblase family localized to mitochondria and is involved in cardiolipin translocation at the mitochondrial membrane. Direct biochemical evidence of phospholipid translocation by hPLSCR3 is yet to be reported. Functional assay in synthetic proteoliposomes upon Ca2+ and Mg2+ revealed that, apart from cardiolipin, recombinant hPLSCR3 translocates aminophospholipids such as NBD-PE and NBD-PS but not neutral phospholipids. Point mutation in hPLSCR3 (F258V) resulted in decreased Ca2+ binding affinity. Functional assay with F258V-hPLSCR3 led to ~50% loss in scramblase activity in the presence of Ca2+ and Mg2+. Metal ion-induced conformational changes were monitored by intrinsic tryptophan fluorescence, circular dichroism, surface hydrophobicity changes and aggregation studies. Our results revealed that Ca2+ and Mg2+ bind to hPLSCR3 and trigger conformational changes mediated by aggregation. In summary, we suggest that the metal ion-induced conformational change and the aggregation of the protein are essential for the phospholipid translocation by hPLSCR3. PMID- 29337694 TI - Magnetic and structural depth profiles of Heusler alloy Co2FeAl0.5Si0.5 epitaxial films on Si(1 1 1). AB - The depth-resolved chemical structure and magnetic moment of [Formula: see text], thin films grown on Si(1 1 1) have been determined using x-ray and polarized neutron reflectometry. Bulk-like magnetization is retained across the majority of the film, but reduced moments are observed within 45[Formula: see text] of the surface and in a 25[Formula: see text] substrate-interface region. The reduced moment is related to compositional changes due to oxidation and diffusion, which are further quantified by elemental profiling using electron microscopy with electron energy loss spectroscopy. The accuracy of structural and magnetic depth profiles obtained from simultaneous modeling is discussed using different approaches with different degree of constraints on the parameters. Our approach illustrates the challenges in fitting reflectometry data from these multi component quaternary Heusler alloy thin films. PMID- 29337696 TI - High-pressure structural and vibrational properties of monazite-type BiPO4, LaPO4, CePO4, and PrPO4. AB - Monazite-type BiPO4, LaPO4, CePO4, and PrPO4 have been studied under high pressure by ab initio simulations and Raman spectroscopy measurements in the pressure range of stability of the monazite structure. A good agreement between experimental and theoretical Raman-active mode frequencies and pressure coefficients has been found which has allowed us to discuss the nature of the Raman-active modes. Besides, calculations have provided us with information on how the crystal structure is modified by pressure. This information has allowed us to determine the equation of state and the isothermal compressibility tensor of the four studied compounds. In addition, the information obtained on the polyhedral compressibility has been used to explain the anisotropic axial compressibility and the bulk compressibility of monazite phosphates. Finally, we have carried out a systematic discussion on the high-pressure behavior of the four studied phosphates in comparison to results of previous studies. PMID- 29337697 TI - Enhanced second harmonic generation from a plasmonic Fano structure subjected to an azimuthally polarized light beam. AB - We show that an azimuthally polarized beam (APB) excitation of a plasmonic Fano structure made by coupling a split-ring resonator (SRR) to a nanoarc can enhance second harmonic generation (SHG). Strikingly, an almost 30 times enhancement in SHG peak intensity can be achieved when the excitation is switched from a linearly polarized beam (LPB) to an APB. We attribute this significant enhancement of SHG to the corresponding increase in the local field intensity at the fundamental frequency of SHG, resulting from the improved conversion efficiency between the APB excitation and the plasmonic modes of the Fano structure. We also show that unlike LPB, APB excitation creates a symmetric SHG radiation pattern. This effect can be understood by considering an interference model in which the APB can change the total SHG far-field radiation by modifying the amplitudes and phases of two waves originating from the individual SRR and nanoarc of the Fano structure. PMID- 29337695 TI - Automated fabrication of photopatterned gelatin hydrogels for organ-on-chips applications. AB - Organ-on-chip platforms aim to improve preclinical models for organ-level responses to novel drug compounds. Heart-on-a-chip assays in particular require tissue engineering techniques that rely on labor-intensive photolithographic fabrication or resolution-limited 3D printing of micropatterned substrates, which limits turnover and flexibility of prototyping. We present a rapid and automated method for large scale on-demand micropatterning of gelatin hydrogels for organ on-chip applications using a novel biocompatible laser-etching approach. Fast and automated micropatterning is achieved via photosensitization of gelatin using riboflavin-5'phosphate followed by UV laser-mediated photoablation of the gel surface in user-defined patterns only limited by the resolution of the 15 MUm wide laser focal point. Using this photopatterning approach, we generated microscale surface groove and pillar structures with feature dimensions on the order of 10-30 MUm. The standard deviation of feature height was 0.3 MUm, demonstrating robustness and reproducibility. Importantly, the UV-patterning process is non-destructive and does not alter gelatin micromechanical properties. Furthermore, as a quality control step, UV-patterned heart chip substrates were seeded with rat or human cardiac myocytes, and we verified that the resulting cardiac tissues achieved structural organization, contractile function, and long term viability comparable to manually patterned gelatin substrates. Start-to finish, UV-patterning shortened the time required to design and manufacture micropatterned gelatin substrates for heart-on-chip applications by up to 60% compared to traditional lithography-based approaches, providing an important technological advance enroute to automated and continuous manufacturing of organ on-chips. PMID- 29337698 TI - Fe and Co NMR studies of magnetoelectric Co2 Y-type hexaferrite BSCFAO. AB - The Fe3+ and Co2+ NMR spectra for Ba0.3Sr1.7Co2(Fe0.96Al0.04)12O22 (BSCFAO) and Ba0.3Sr1.7Co2Fe12O22 (BSCFO) were obtained in a zero magnetic field at a low temperature. We observed change in the enhancement effect of the NMR signals depending on the setting field, which was varied when applied along the b-axis and then turned off before the measurement was taken. The experimental results indicate that the magnetic structure changes from an alternating longitudinal cone to a transverse cone when the setting field is 250 mT. They also show that the spins of Co2+ ions together with those of Fe3+ ions constitute a part of the overall magnetic structure and that the substitution of Al3+ for Fe3+ weakens the magnetic anisotropy within the easy plane. From a comparison of the enhancement factors of the Fe3+ NMR obtained with the RF pulse applied along the a-axis and the c-axis, we found that the magnetic easy plane anisotropy is approximately 16 times greater than the anisotropy within the easy plane. No changes of the NMR spectra were observed under an electric field of 1.2 MV m-1. PMID- 29337700 TI - Increased resistance to tissue plasminogen activator-induced fibrinolysis in healthy subjects from Thailand. AB - : There is significant variability in blood coagulation among world populations. In particular, there may exist important differences in regulation of the fibrinolytic system in Asian populations that contribute to diseases of thrombosis and hemostasis. To investigate this issue, we compared fibrinogen concentration, plasma clot formation, and fibrinolytic resistance of healthy Asian subjects from Hat Yai, Songkhla, Thailand (Thai) vs. healthy North American subjects from Seattle, Washington, USA (SEA). Citrated plasma samples were obtained from healthy adult volunteers. Fibrinogen concentration was measured in plasma by the method of Clauss to examine for baseline differences of fibrinogen concentration. Samples were then standardized to 2.8 mg/ml fibrinogen using physiological buffer for each sample prior to fibrinolytic testing using rotational thromboelastometry (ROTEM) to examine for differences of clot lysis not attributable to fibrinogen concentration alone. Clot lysis was examined with ROTEM extrinsic pathway activation in the presence of 0, 0.5, and 1.0 MUg/ml of tissue plasminogen activator (tPA). Two-way repeated measures analysis of variance was used to determine the effects of tPA and study group on ROTEM parameters. N = 49 Thai samples were compared with N = 58 SEA samples. Mean (SD) fibrinogen concentration was significantly increased for the Thai group at 4.03 (0.79) mg/ml vs. the SEA group at 3.66 (0.70) mg/ml (t test P = 0.014). After standardization of all samples to equivalent fibrinogen concentration, there were no differences in clot formation between groups without tPA. There was a significant effect of increasing tPA concentration on all ROTEM parameters except for clotting time. There were significant individual differences for amplitude at 10 min and lysis onset time, where amplitude at 10 min was significantly increased and lysis onset time was significantly prolonged for Thai vs. SEA at tPA concentrations of 0.5 and 1.0 MUg/ml. Variability in thrombosis and hemostasis in Asians vs. other populations is likely to involve differences of fibrinogen concentration and regulation of clot lysis. PMID- 29337701 TI - Update on metal-induced occupational lung disease. AB - PURPOSE OF REVIEW: Occupational and environmental exposures to metals can result in multiple pulmonary conditions. This article will review recent epidemiologic and mechanistic studies that have enhanced our understanding of the association between particular lung diseases and exposure to specific metals. RECENT FINDINGS: Recent studies have broadened our understanding of the mechanisms of lung diseases such as CBD in established industries and drawn attention to conditions that may arise from exposure to metals such as indium in developing technologies. New diagnostic techniques such as elemental tissue analysis may help establish a diagnosis of metal-induced occupational lung disease. Electronic cigarette devices, environmental pollutants, and the growing use of nanoparticle sized metals pose additional risks to workers and consumers. SUMMARY: Recognizing the risks of pulmonary disease in workers exposed to metals and performing a thorough occupational history and diagnostic work-up in patients with unexplained respiratory findings is necessary to promote understanding and prevention of metal-induced lung disease. PMID- 29337699 TI - Associations Between Nurse-Guided Variables and Plasma Oxytocin Trajectories in Premature Infants During Initial Hospitalization. AB - BACKGROUND: Oxytocin (OT) is a social hormone that may help researchers understand how nurse-guided interventions during initial infant hospitalization, such as supporting human milk expression, promoting comforting touch, and reducing exposure to stressors, affect preterm brain development. PURPOSE: To determine whether factors related to human milk, touch, or stressor exposure are related to plasma OT trajectories in premature infants. METHODS: Plasma from 33 premature infants, born gestational ages 25 to (Equation is included in full-text article.)weeks, was collected at 14 days of life and then weekly until 34 weeks' corrected gestational age (CGA). Variables related to feeding volumes of human milk and formula; touch, as indexed by skin-to-skin contact (SSC) and swaddled holding; and clinical stressors were extracted from the electronic medical record. Linear mixed-models tested associations between nurse-guided variables and plasma OT trajectories. RESULTS: In the final model, same-day SSC was positively related not only to plasma OT levels at 27 weeks' CGA (beta= .938, P = .002) but also to a decline in plasma OT levels over time (beta=-.177, P = .001). Volume of enteral feeds (mL/kg/d), its interaction with CGA, and number of stressful procedures were not statistically significant (beta= .011, P = .077; beta=-.002, P = .066; and beta= .007, P = .062, respectively). IMPLICATIONS FOR PRACTICE: Nurse-guided interventions are associated with infant plasma OT levels, suggesting nurses may impact the neurobiology of the developing premature infant. IMPLICATIONS FOR RESEARCH: Replication with larger sample sizes and randomized controlled trial designs is needed to test effects of specific nursing interventions on infant OT. PMID- 29337702 TI - Changing concepts of HIV infection and renal disease. AB - PURPOSE OF REVIEW: Human immunodeficiency virus (HIV)-associated nephropathy (HIVAN) was identified as the major renal manifestation of HIV infection early in the HIV epidemic. However, HIV infection now is associated with a different spectrum of renal lesions leading to chronic kidney disease. This review examines the changes in kidney injury occurring in the current HIV era and the factors involved in this transformation of disease expression. RECENT FINDINGS: The incidence of HIVAN and opportunistic infections in HIV-infected individuals has declined in concert with the use of effective combination antiretroviral agents. Chronic kidney disease has become more prevalent as patients infected with HIV are living longer and developing non-HIV-associated diseases such as hypertension and diabetes. Additionally, noncollapsing focal and segmental glomerulosclerosis, co-infection with hepatitis C, HIV-associated immune complex kidney disease, HIV related accelerated aging, and antiretroviral therapies contribute to progressive loss of renal function. SUMMARY: HIV infection is now associated with a variety of renal lesions causing chronic kidney disease, not all of which are virally induced. It is important to determine the cause of renal functional decline in an HIV-infected patient, as this will impact patient management and prognosis. PMID- 29337703 TI - New antibiotics for ventilator-associated pneumonia. AB - PURPOSE OF REVIEW: Ventilator-associated pneumonia (VAP) caused by multidrug resistant (MDR) bacteria represents a global emerging problem. Delayed prescription of an adequate treatment for VAP has been associated with higher morbidity and mortality. New molecules have been developed to face the need of compounds that are active against resistant Gram-positive and Gram-negative pathogens. The aim of this review is to summarize the current scenario of new therapeutic options for the treatment of VAP. RECENT FINDINGS: A number of new antibiotics with activity against MDR have been recently approved for the treatment of VAP, and other agents are under investigation. In this review, the authors summarize the current therapeutic options for the treatment of VAP that showed promising implications for clinical practice, including new compounds belonging to old antibiotic classes (e.g., ceftolozane/tazobactam, ceftazidime/avibactam meropenem/vaborbactam, imipenem/relebactam, tedizolid, cefiderocol, eravacycline, and plazomicin) and novel chemical classes, such as murepavadin. Nebulized antibiotics that are currently in development for the treatment of pneumonia in mechanically ventilated patients are also presented. SUMMARY: Newly approved and investigational drugs for the treatment of VAP are expected to offer many advantages for the management of patients with respiratory infections caused by MDR. Promising characteristics of new compounds include high activity against both methicillin-resistant Staphylococcus aureus and MDR Gram negative bacteria and a favorable safety profile. PMID- 29337704 TI - The what, when and how in performing and interpreting microbiological diagnostic tests in skin and soft tissue infections. AB - PURPOSE OF REVIEW: To summarize and classify the most recent and relevant microbiological studies for each type of skin and soft tissue infection (SSTI). RECENT FINDINGS: Following Infectious Diseases Society of America and Food and Drug Administration classifications of SSTIs, we differentiate between two large groups, the superficial or uncomplicated infections and the complicated infections with deep involvement. It is not usually necessary to obtain microbiological samples in uncomplicated infections, except in cases of recurrences or for epidemiological control purposes. In the case of complicated infections, the samples are of two different types: those obtained from the affected area (surgical samples, punctures of abscesses or swabs) and systemic samples (i.e. blood cultures). The clinical condition also determines the type of samples to be obtained. In cases of systemic involvement, blood cultures are mandatory. For immunocompromised patients, who may present atypical infections, detection of antigens, serologies or molecular biology techniques may be helpful. The rapid diagnosis is currently the goal to be pursued by implementing techniques such as matrix assisted laser desorption ionization-time of flight, commercial real-time PCR or the promising metagenomics. SUMMARY: Microbiological diagnosis is one of the cornerstones of the management of SSTIs. Prompt obtaining and processing of the necessary samples, depending on the clinical situation of the patient, is of relevance in the decision-making process. Rapid and fluid reporting of the results (identification, mechanisms of resistance and antibiogram) will improve the management of these patients. PMID- 29337705 TI - How does 'metabolic surgery' work its magic? New evidence for gut microbiota. AB - PURPOSE OF REVIEW: Metabolic surgery is recommended for the treatment of type 2 diabetes for its potent ability to improve glycemic control. However, the mechanisms underlying the beneficial effects of metabolic surgery are still under investigation. We provide an updated review of recent studies into the molecular underpinnings of metabolic surgery, focusing in on what is known about the role of gut microbiota. Over the last 7 years several reports have been published on the topic, however the field is expanding rapidly. RECENT FINDINGS: Studies have now linked the regulation of glucose and lipid metabolism, neuronal and intestinal adaptations, and hormonal and nutrient signaling pathways to gut microbiota. Given that the composition of gut microbiota is altered by metabolic surgery, investigating the potential mechanism and outcomes of this change are now a priority to the field. SUMMARY: As evidence for a role for microbiota builds, we expect future patients may receive microbe-based therapeutics to improve surgical outcomes and perhaps one day preclude the need for surgical therapies all together. In this review and perspective, we evaluate the current state of the field and its future. PMID- 29337706 TI - Cholesterol efflux in the transplant patient. AB - PURPOSE OF REVIEW: Cholesterol metabolism is increasingly recognized in inflammatory diseases including transplantation. This review discusses the mechanistic underpinnings that tie macrophage cholesterol efflux capacity (CEC) of high-density lipoprotein (HDL) to chronic rejection in transplanted patients. RECENT FINDINGS: Animal studies suggest that administration of apolipoprotein A I, the main protein constituent of HDL, can prevent transplant arteriosclerosis. apoA-I administration increases CEC of HDL. In patients with cardiac allograft vasculopathy (CAV), decreased CEC has been associated with poorer survival. In addition, reduced CEC in recipients, pretransplant, has been associated with the development of CAV and renal allograft survival. SUMMARY: These recent findings raise the hypothesis that increasing cholesterol efflux may prevent chronic rejection and improve allograft survival after transplant. Reconstituted HDL significantly increases CEC and is currently in clinical development for traditional atherosclerosis. Clinical trials of reconstituted HDL administration in transplantation should be performed. PMID- 29337707 TI - Induction chemotherapy in acute myeloid leukaemia: origins and emerging directions. AB - PURPOSE OF REVIEW: This review summarizes the hallmark developments in induction chemotherapy for acute myeloid leukaemia and further describes future directions in its evolution. RECENT FINDINGS: We describe the origin of induction chemotherapy. We also describe notable modifications and adjustments to 7+3 induction chemotherapy since its development. Finally, we describe new efforts to modify and add new agents to induction therapy, including '7+3 Plus' combinations. SUMMARY: Induction chemotherapy remains the standard of care for the majority of patients with acute myeloid leukaemia. However, its success is limited in a subset of patients by toxicity, failure to achieve remission and potential for subsequent relapse. Novel agents such as mutant fms like tyrosine kinase 3 inhibitors, mutant isocitrate dehydrogenase inhibitors, CD33-antibody drug conjugates and liposomal formulations have demonstrated significant potential as modifications to traditional induction chemotherapy. PMID- 29337708 TI - Using Iterative Plan-Do-Study-Act Cycles to Improve Teaching Pedagogy. AB - Most students entering nursing programs today are members of Generation Y or the Millennial generation, and they learn differently than previous generations. Nurse educators must consider implementing innovative teaching strategies that appeal to the newest generation of learners. The Plan-Do-Study-Act cycle is a framework that can be helpful when planning, assessing, and continually improving teaching pedagogy. This article describes the use of iterative Plan-Do-Study-Act cycles to implement a change in teaching pedagogy. PMID- 29337709 TI - The Relationship Between Socioeconomic Status (SES) and NCLEX-RN: Comparing SES Indicators in Mediated Logistic Regression. AB - The main purpose of this study was to examine the relationship between socioeconomic status (SES), ACT test scores, and the National Council Licensure Examination-Registered Nurse (NCLEX-RN) through a mediated logistic regression model. ACT is often considered one of the strongest predictors of success on the NCLEX-RN. Data from nursing students (N = 1,176) at a large, Midwestern university were analyzed. The goal was to determine if the predictive power of ACT on the NCLEX-RN stems from the influence of SES on ACT. A significant indirect effect through the causal chain of Pell Grant eligibility (i.e., SES) >ACT->NCLEX-RN was found. PMID- 29337710 TI - Analysis of First-Time Unsuccessful Attempts on the Certified Nurse Educator Examination. AB - AIM: This retrospective analysis examined first-time unsuccessful attempts on the Certified Nurse Educator (CNE) examination from September 2005 through September 2011 (n = 390). BACKGROUND: There are few studies examining certification within the academic nurse educator role. There is also a lack of evidence to assist nurse educators in understanding those factors that best support success on the CNE exam. METHOD: Nonexperimental, descriptive, retrospective correlational design using chi-square test of independence and factorial analyses of variance. RESULTS: A statistically significant relationship was found between first-time failure and highest degree obtained and institutional affiliation on the CNE exam. There was no statistically significant effect on mean scores in any of the six content areas measured by the CNE exam as related to highest degree or institutional affiliation. CONCLUSION: The findings from this study support a previous recommendation for faculty development, experience in the role, and doctoral preparation prior to seeking certification. PMID- 29337711 TI - Why We Became Nurse Educators: Findings From a Nationwide Survey of Current Nurse Educators. AB - AIM: The aim of the study was to identify what a national sample of nurse faculty believe will help build the faculty population. BACKGROUND: The aging population contributes to the need for new nurses while reducing the number of experienced faculty. Retaining faculty and attracting younger faculty are essential. METHOD: This descriptive study used an online survey. Nurse educators teaching at all levels (n = 940) were asked to rate the effectiveness of attraction, recruitment, and retention strategies. This article reports on responses to one of the survey's open-ended question; a content analysis was conducted to develop a narrative description about why respondents chose nursing education. RESULTS: Respondents wanted to teach in a stimulating yet flexible work environment, hoped to influence the profession, had been influenced by educators, and sought change and challenge in their careers. CONCLUSION: Faculty find nursing academia satisfying and rewarding, but noncompetitive compensation and unsatisfactory work environments can eclipse satisfiers. PMID- 29337712 TI - Femoral Component Sizing During Total Knee Arthroplasty: Anterior Versus Posterior Referencing. PMID- 29337713 TI - Calculated versus Measured MVV-Surrogate Marker of Ventilatory CPET-Erratum. PMID- 29337714 TI - Greater Effect of East versus West Travel on Jet Lag, Sleep, and Team Sport Performance-Erratum. PMID- 29337715 TI - Labyrinthine Sequestrum: A Case Report and Review of the Literature. AB - OBJECTIVE: To report the presentation, diagnosis, management, and convalescence of labyrinthine sequestrum (LS) and summarize all previously published cases. PATIENT(S): Eleven-year-old female with LS. INTERVENTION(S): Multidisciplinary diagnostic evaluation and treatment. MAIN OUTCOME MEASURES: Imaging and laboratory findings, medical and surgical treatment. RESULTS: We describe a case of LS secondary to medically recalcitrant suppurative otitis media in an 11-year old female and review all eight previously reported cases. The index patient presented after 6 months of otitis media, profound unilateral hearing loss, with symptoms suggesting meningitis. Temporal bone CT demonstrated marked bony destruction of the left otic capsule. Gadolinium-enhanced MRI showed an enhancing process with evidence of meningitis and subdural empyema. The patient was treated with surgical debridement and culture directed antibiotic therapy. Posttreatment imaging showed resolution of intracranial infection with fibrous bony healing of the otic capsule resembling fibrous dysplasia. CONCLUSION: LS is a rare form of labyrinthitis characterized by centrifugal destruction of the otic capsule. The current index case highlights the importance of combined medical and surgical treatment and describes for the first time in the literature the fibrous ossification of the otic capsule following disease resolution. PMID- 29337716 TI - Management of Biceps Tendon Pathology: From the Glenoid to the Radial Tuberosity. AB - Management of proximal and distal biceps tendon pathology is evolving. The long head of the biceps tendon, if inflamed, may be a pain-producing structure. In appropriately indicated patients, a symptomatic long head of the biceps tendon can be surgically managed via tenotomy, tenodesis, and/or superior labrum anterior to posterior repair. In some patients, primary superior labrum anterior to posterior pathology can be managed via biceps tenodesis. Determining which procedure is most appropriate and which technique and implant are preferred for a given patient with biceps tendon pathology is controversial. Less debate exists with regard to the timing of distal biceps tendon repair; however, considerable controversy exists with regard to selection of an appropriate surgical technique and implant. In addition, the treatment of patients with a chronic and/or retracted distal biceps tendon tear and patients in whom distal biceps tendon repair fails is extremely challenging. Orthopaedic surgeons should understand the anatomy of, nonsurgical and surgical treatment options for, and outcomes of patients with proximal or distal biceps tendon pathology. PMID- 29337717 TI - Transforaminal Lumbar Interbody Fusion: Traditional Open Versus Minimally Invasive Techniques. AB - Recently, minimally invasive spine arthrodesis has gained popularity among spine surgeons. Minimally invasive techniques have advantages and disadvantages compared with traditional open techniques. Comparisons between short-term outcomes of minimally invasive transforaminal interbody fusion and open transforaminal interbody fusion in terms of estimated blood loss, postoperative pain, and hospital length of stay have been well documented and generally favor the minimally invasive technique. However, the advantages of minimally invasive transforaminal interbody fusion must be evaluated in the context of long-term results, such as patient-reported outcomes and the success of arthrodesis. Because the literature is equivocal in identifying the superior technique for successful long-term outcomes, more study is needed. Patient safety, the risk of complications, and the cost of these techniques also must be considered. PMID- 29337718 TI - Physical Inactivity from Youth to Adulthood and Risk of Impaired Glucose Metabolism. AB - INTRODUCTION: Physical activity (PA) is important in the prevention and treatment of impaired glucose metabolism. However, association of physical inactivity during the transition between childhood and adulthood with glucose metabolism is unknown. Therefore, we studied the association of persistent physical inactivity since childhood with glucose metabolism in adulthood. METHODS: Data were drawn from the ongoing, Cardiovascular Risk in Young Finns Study with repeated follow ups between 1980 and 2011 (baseline age, 3-18 yr; n = 3596). Impaired glucose metabolism was defined as having impaired fasting glucose (6.1-6.9 mmol.L) or type 2 diabetes in adulthood. Leisure-time PA habits were repeatedly collected with a standardized questionnaire and expressed as a PA Index. Using PA Index, four groups were formed (n = 2000): 1) persistently low PA, 2) decreasingly active, 3) increasingly active, and 4) persistently active subjects. Poisson regression model was used to examine the association between PA groups and impaired glucose metabolism. RESULTS: The proportion of the sample with impaired glucose metabolism was 16.1% in individuals with persistently low PA, 14.5% in decreasingly active, 6.8% in increasingly active, and 11.1% in persistently active. Compared with individuals with persistently low PA, age and sex-adjusted risk for impaired glucose metabolism were lower in those who increased PA (relative risk [RR], 0.47; 95% confidence interval [CI], 0.29-0.76) and in those who were persistently active (RR, 0.70; 95% CI, 0.51-0.97), but similar in those who decreased PA (RR, 0.93; 95% CI, 0.66-1.36). CONCLUSIONS: Persistently physically inactive lifestyle from youth to adulthood is associated with increased risk of impaired glucose metabolism in adulthood. Importantly, a moderate increase in PA lowered the risk. The results highlight the importance of avoiding physically inactive lifestyle at all stages of life. PMID- 29337719 TI - The effect of a hybrid training program. AB - Improving nursing communication skills and HCAHPS scores. PMID- 29337720 TI - Update on the Role of Actovegin in Musculoskeletal Medicine: A Review of the Past 10 Years. AB - BACKGROUND: Actovegin is a biological drug with a controversial history of use in the treatment of sports injuries during the past 60 years. Particular concerns have been raised about its ergogenic potential to enhance performance, but some of these have been based on little more than anecdote. OBJECTIVES: In this article, we review the most recent scientific evidence to determine the clinical efficacy, safety profile, and legal status of Actovegin. METHODS: We considered all studies directly commenting on experience with Actovegin use as the primary intervention within the past 10 years. Outcomes included mechanisms of action, clinical efficacy in enhancing muscle repair, any report of safety issues, and any evidence for ergogenic effect. RESULTS: Our database search returned 212 articles, abstracts were screened, and after inclusion/exclusion criteria were applied, 25 articles were considered: Publications included 11 primary research articles (7 in vitro studies and 4 clinical trials), 8 review articles, 5 editorials, and a single case report. CONCLUSIONS: Current literature is still yet to define the active compound(s) of Actovegin, but suggests that it shows antioxidant and antiapoptotic properties, and may also upregulate macrophage responses central to muscle repair. Clinical efficacy was supported by one new original research article, and the use of Actovegin to treat muscle injuries remains safe and supported. Two articles argued the ergogenic effect of Actovegin, but in vitro findings did not to translate to the outcomes of a clinical trial. An adequate and meaningful scientific approach remains difficult in a field where there is immense pressure to deliver cutting-edge therapies. PMID- 29337722 TI - In Response to: Influence and Reliability of Different Correction Formulas on QTc Calculation. PMID- 29337721 TI - Continuing Play, Symptom Severity, and Symptom Duration After Concussion in Youth Athletes. AB - OBJECTIVE: To determine whether continuing to play after a concussion is associated with higher symptom burden or prolonged symptom duration. DESIGN: Patients who presented for care at a sport concussion clinic within the first 3 weeks of injury were asked whether they continued to play immediately after their injury. SETTING: Sport concussion clinic within a regional tertiary care hospital. MAIN OUTCOME MEASURES: Clinical outcomes including symptom severity, symptom duration, age, time from injury-clinical presentation, sex, sport type, previous concussion history, and whether or not they experienced loss of consciousness or amnesia at the time of injury were recorded. Univariable comparisons between those who did and did not report continuing play were conducted. Multivariable linear regression models were constructed to identify the independent association of continuing to play postinjury with symptom burden and symptom recovery time, while controlling for the effect of potential confounding variables. RESULTS: A total of 516 patients were included in the study, assessed a mean of 12.1 +/- 5.2 days postinjury (35% female, mean age = 14.5 +/- 2.3 years). A total of 227 (44%) continued play after sustaining a concussion. Continuing to play postconcussion was independently associated with higher symptom severity during the initial clinical evaluation [beta-coefficient = 6.144, 95% confidence interval (CI), 1.357-10.93], but not with symptom duration evaluation (beta-coefficient = 1.794, 95% CI, -15.66 to 19.25). CONCLUSION: Those who continued to play postconcussion presented with more severe symptoms after injury. Recognition of suspected concussion and removal from play on diagnosis confirmation may lead to better initial clinical outcomes after concussion among child and adolescent athletes. PMID- 29337723 TI - New Recommendations on Sport-Related Concussions: Stronger Methodology, Practical Messages, and Remaining Challenges. PMID- 29337724 TI - Statistical Significance Versus Clinical Importance of Observed Effect Sizes: What Do P Values and Confidence Intervals Really Represent? AB - Effect size measures are used to quantify treatment effects or associations between variables. Such measures, of which >70 have been described in the literature, include unstandardized and standardized differences in means, risk differences, risk ratios, odds ratios, or correlations. While null hypothesis significance testing is the predominant approach to statistical inference on effect sizes, results of such tests are often misinterpreted, provide no information on the magnitude of the estimate, and tell us nothing about the clinically importance of an effect. Hence, researchers should not merely focus on statistical significance but should also report the observed effect size. However, all samples are to some degree affected by randomness, such that there is a certain uncertainty on how well the observed effect size represents the actual magnitude and direction of the effect in the population. Therefore, point estimates of effect sizes should be accompanied by the entire range of plausible values to quantify this uncertainty. This facilitates assessment of how large or small the observed effect could actually be in the population of interest, and hence how clinically important it could be. This tutorial reviews different effect size measures and describes how confidence intervals can be used to address not only the statistical significance but also the clinical significance of the observed effect or association. Moreover, we discuss what P values actually represent, and how they provide supplemental information about the significant versus nonsignificant dichotomy. This tutorial intentionally focuses on an intuitive explanation of concepts and interpretation of results, rather than on the underlying mathematical theory or concepts. PMID- 29337725 TI - In Response. PMID- 29337726 TI - Valveless Trocar Systems and Respiratory Mechanics: Need for Revaluation. PMID- 29337727 TI - Ultrasound in Anesthesia, Critical Care, and Pain Management: A Critic's Review. PMID- 29337728 TI - Continuous Pulse Oximetry Does Not Measure Blood Pressure. PMID- 29337729 TI - Evaluation of Almitrine Infusion During Veno-Venous Extracorporeal Membrane Oxygenation for Severe Acute Respiratory Distress Syndrome in Adults. AB - This single-center case series investigated the effect of almitrine infusion on PaO2/fraction of inspired oxygen (FIO2) in 25 patients on veno-venous extracorporeal membrane oxygenation for severe acute respiratory distress syndrome. A positive trial was defined as an increase of PaO2/FIO2 ratio >=20%. Thirty-two trials were performed. Twenty (62.5%, 95% confidence interval, 37.5% 75%) trials in 18 patients were positive, with a median PaO2/FIO2 ratio increase of 35% (25%-43%). A focal acute respiratory distress syndrome and inhaled nitric oxide therapy were more frequent in patients with a positive response to almitrine. We observed no complications of almitrine use. PMID- 29337730 TI - Effects of Electrical Transcutaneous Vagus Nerve Stimulation on the Perceived Intensity of Repetitive Painful Heat Stimuli: A Blinded Placebo- and Sham Controlled Randomized Crossover Investigation. AB - BACKGROUND: Transcutaneous vagus nerve stimulation (TVNS) is a promising treatment for acute and chronic pain. However, experimental studies yielded controversial results. We examined if TVNS reduces the perceived intensity of repetitive painful heat stimulation and temporal summation of pain (TSP) in healthy volunteers in comparison with placebo and sham stimulation, as well as no intervention. METHODS: In 4 sessions, 90 heat pulse stimuli at individual pain tolerance temperature were applied to the ventral forearm of 49 healthy volunteers (25 women) using a Contact Heat Evoked Potential Stimulator thermode (Medoc, Ramat Yishai, Israel). Pain intensity was assessed with verbal ratings on a numeric pain scale (0-100) at every tenth heat pulse. After the first session in which pain intensities without intervention were evaluated, participants completed 3 sessions in a single-blinded randomized crossover manner: (1) sham stimulation applied at the earlobes, (2) placebo stimulation (inactive device), or (3) TVNS applied at the cymbas conchae. Primary data were analyzed using analysis of variance for repeated measures and t test for paired samples. RESULTS: Pain intensity decreased during all interventions as compared to no intervention (etap = 0.22, P < .001; mean difference TVNS versus no intervention 9.5; 95% confidence interval [CI], 3.6-15.4; P < .001). Hypoalgesic effect of TVNS was better than that of placebo and sham in men before the onset of TSP (mean differences for TVNS versus placebo 6.2; 95% CI, 0.2-12.1; TVNS versus sham 6.2; 95% CI, 0.2-12.1; P < .05). In women, TSP response under TVNS was decreased if compared to no intervention (median difference, 7.5; 95% CI, 3.5-15.0; P = .003). CONCLUSIONS: TVNS, placebo, and sham stimulation exerted comparable effects under experimental heat pain stimulation. Only in male participants, TVNS was superior to sham and placebo conditions in the reduction of heat pain before the onset of TSP. PMID- 29337731 TI - In Response. PMID- 29337738 TI - Decision Support Alerts: Importance of Validation. PMID- 29337740 TI - Risk Prediction Tools: The Need for Greater Transparency. PMID- 29337741 TI - Regulatory Landscape for Clinical Decision Support Technology. PMID- 29337743 TI - Impact of a Novel Multiparameter Decision Support System on Intraoperative Processes of Care and Postoperative Outcomes. AB - BACKGROUND: The authors hypothesized that a multiparameter intraoperative decision support system with real-time visualizations may improve processes of care and outcomes. METHODS: Electronic health record data were retrospectively compared over a 6-yr period across three groups: experimental cases, in which the decision support system was used for 75% or more of the case at sole discretion of the providers; parallel controls (system used 74% or less); and historical controls before system implementation. Inclusion criteria were adults under general anesthesia, advanced medical disease, case duration of 60 min or longer, and length of stay of two days or more. The process measures were avoidance of intraoperative hypotension, ventilator tidal volume greater than 10 ml/kg, and crystalloid administration (ml . kg . h). The secondary outcome measures were myocardial injury, acute kidney injury, mortality, length of hospital stay, and encounter charges. RESULTS: A total of 26,769 patients were evaluated: 7,954 experimental cases, 10,933 parallel controls, and 7,882 historical controls. Comparing experimental cases to parallel controls with propensity score adjustment, the data demonstrated the following medians, interquartile ranges, and effect sizes: hypotension 1 (0 to 5) versus 1 (0 to 5) min, P < 0.001, beta = -0.19; crystalloid administration 5.88 ml . kg . h (4.18 to 8.18) versus 6.17 (4.32 to 8.79), P < 0.001, beta = -0.03; tidal volume greater than 10 ml/kg 28% versus 37%, P < 0.001, adjusted odds ratio 0.65 (0.53 to 0.80); encounter charges $65,770 ($41,237 to $123,869) versus $69,373 ($42,101 to $132,817), P < 0.001, beta = -0.003. The secondary clinical outcome measures were not significantly affected. CONCLUSIONS: The use of an intraoperative decision support system was associated with improved process measures, but not postoperative clinical outcomes. PMID- 29337744 TI - Defining the Intrinsic Cardiac Risks of Operations to Improve Preoperative Cardiac Risk Assessments. AB - BACKGROUND: Current preoperative cardiac risk stratification practices group operations into broad categories, which might inadequately consider the intrinsic cardiac risks of individual operations. We sought to define the intrinsic cardiac risks of individual operations and to demonstrate how grouping operations might lead to imprecise estimates of perioperative cardiac risk. METHODS: Elective operations (based on Common Procedural Terminology codes) performed from January 1, 2010 to December 31, 2015 at hospitals participating in the American College of Surgeons National Surgical Quality Improvement Program were studied. A composite measure of perioperative adverse cardiac events was defined as either cardiac arrest requiring cardiopulmonary resuscitation or acute myocardial infarction. Operations' intrinsic cardiac risks were derived from mixed-effects models while controlling for patient mix. Resultant risks were sorted into low-, intermediate-, and high-risk categories, and the most commonly performed operations within each category were identified. Intrinsic operative risks were also examined using a representative grouping of operations to portray within group variation. RESULTS: Sixty-six low, 30 intermediate, and 106 high intrinsic cardiac risk operations were identified. Excisional breast biopsy had the lowest intrinsic cardiac risk (overall rate, 0.01%; odds ratio, 0.11; 95% CI, 0.02 to 0.25) relative to the average, whereas aorto-bifemoral bypass grafting had the highest (overall rate, 4.1%; odds ratio, 6.61; 95% CI, 5.54 to 7.90). There was wide variation in the intrinsic cardiac risks of operations within the representative grouping (median odds ratio, 1.40; interquartile range, 0.88 to 2.17). CONCLUSIONS: A continuum of intrinsic cardiac risk exists among operations. Grouping operations into broad categories inadequately accounts for the intrinsic cardiac risk of individual operations. PMID- 29337748 TI - Avoidance of Hyperoxemia during Cardiopulmonary Bypass: Why Does Pathophysiology Not Always Translate into Clinical Outcome? PMID- 29337749 TI - Clinical Technology and Glucose Management. PMID- 29337750 TI - In Reply. PMID- 29337751 TI - Perioperative Pain Management for Total Knee Arthroplasty: Need More Focus on the Forest and Less on the Trees. PMID- 29337752 TI - In Reply. PMID- 29337753 TI - Solvent Matters! PMID- 29337754 TI - In Reply. PMID- 29337755 TI - Distal Subclavian Cannulation and Extravasation. PMID- 29337756 TI - Taller People Should Have as Their Normal a Higher Body Mass Index. PMID- 29337757 TI - Unusual Catheter Placement on Chest Radiograph: Two Dimensions, Two Possible Locations (or More). PMID- 29337758 TI - In Reply. PMID- 29337761 TI - Children's Recognition of Emotional Prosody in Spectrally Degraded Speech Is Predicted by Their Age and Cognitive Status. AB - OBJECTIVES: It is known that school-aged children with cochlear implants show deficits in voice emotion recognition relative to normal-hearing peers. Little, however, is known about normal-hearing children's processing of emotional cues in cochlear implant-simulated, spectrally degraded speech. The objective of this study was to investigate school-aged, normal-hearing children's recognition of voice emotion, and the degree to which their performance could be predicted by their age, vocabulary, and cognitive factors such as nonverbal intelligence and executive function. DESIGN: Normal-hearing children (6-19 years old) and young adults were tested on a voice emotion recognition task under three different conditions of spectral degradation using cochlear implant simulations (full spectrum, 16-channel, and 8-channel noise-vocoded speech). Measures of vocabulary, nonverbal intelligence, and executive function were obtained as well. RESULTS: Adults outperformed children on all tasks, and a strong developmental effect was observed. The children's age, the degree of spectral resolution, and nonverbal intelligence were predictors of performance, but vocabulary and executive functions were not, and no interactions were observed between age and spectral resolution. CONCLUSIONS: These results indicate that cognitive function and age play important roles in children's ability to process emotional prosody in spectrally degraded speech. The lack of an interaction between the degree of spectral resolution and children's age further suggests that younger and older children may benefit similarly from improvements in spectral resolution. The findings imply that younger and older children with cochlear implants may benefit similarly from technical advances that improve spectral resolution. PMID- 29337760 TI - Using Thresholds in Noise to Identify Hidden Hearing Loss in Humans. AB - OBJECTIVES: Recent animal studies suggest that noise-induced synaptopathy may underlie a phenomenon that has been labeled hidden hearing loss (HHL). Noise exposure preferentially damages low spontaneous-rate auditory nerve fibers, which are involved in the processing of moderate- to high-level sounds and are more resistant to masking by background noise. Therefore, the effect of synaptopathy may be more evident in suprathreshold measures of auditory function, especially in the presence of background noise. The purpose of this study was to develop a statistical model for estimating HHL in humans using thresholds in noise as the outcome variable and measures that reflect the integrity of sites along the auditory pathway as explanatory variables. Our working hypothesis is that HHL is evident in the portion of the variance observed in thresholds in noise that is not dependent on thresholds in quiet, because this residual variance retains statistical dependence on other measures of suprathreshold function. DESIGN: Study participants included 13 adults with normal hearing (<=15 dB HL) and 20 adults with normal hearing at 1 kHz and sensorineural hearing loss at 4 kHz (>15 dB HL). Thresholds in noise were measured, and the residual of the correlation between thresholds in noise and thresholds in quiet, which we refer to as thresholds-in-noise residual, was used as the outcome measure for the model. Explanatory measures were as follows: (1) auditory brainstem response (ABR) waves I and V amplitudes; (2) electrocochleographic action potential and summating potential amplitudes; (3) distortion product otoacoustic emissions level; and (4) categorical loudness scaling. All measurements were made at two frequencies (1 and 4 kHz). ABR and electrocochleographic measurements were made at 80 and 100 dB peak equivalent sound pressure level, while wider ranges of levels were tested during distortion product otoacoustic emission and categorical loudness scaling measurements. A model relating the thresholds-in-noise residual and the explanatory measures was created using multiple linear regression analysis. RESULTS: Predictions of thresholds-in-noise residual using the model accounted for 61% (p < 0.01) and 48% (p < 0.01) of the variance in the measured thresholds in-noise residual at 1 and 4 kHz, respectively. CONCLUSIONS: Measures of thresholds in noise, the summating potential to action potential ratio, and ABR waves I and V amplitudes may be useful for the prediction of HHL in humans. With further development, our approach of quantifying HHL by the variance that remains in suprathreshold measures of auditory function after removing the variance due to thresholds in quiet, together with our statistical modeling, may provide a quantifiable and verifiable estimate of HHL in humans with normal hearing and with hearing loss. The current results are consistent with the view that inner hair cell and auditory nerve pathology may underlie suprathreshold auditory performance. PMID- 29337762 TI - Tinnitus and Auditory Perception After a History of Noise Exposure: Relationship to Auditory Brainstem Response Measures. AB - OBJECTIVES: To determine whether auditory brainstem response (ABR) wave I amplitude is associated with measures of auditory perception in young people with normal distortion product otoacoustic emissions (DPOAEs) and varying levels of noise exposure history. DESIGN: Tinnitus, loudness tolerance, and speech perception ability were measured in 31 young military Veterans and 43 non Veterans (19 to 35 years of age) with normal pure-tone thresholds and DPOAEs. Speech perception was evaluated in quiet using Northwestern University Auditory Test (NU-6) word lists and in background noise using the words in noise (WIN) test. Loudness discomfort levels were measured using 1-, 3-, 4-, and 6-kHz pulsed pure tones. DPOAEs and ABRs were collected in each participant to assess outer hair cell and auditory nerve function. RESULTS: The probability of reporting tinnitus in this sample increased by a factor of 2.0 per 0.1 uV decrease in ABR wave I amplitude (95% Bayesian confidence interval, 1.1 to 5.0) for males and by a factor of 2.2 (95% confidence interval, 1.0 to 6.4) for females after adjusting for sex and DPOAE levels. Similar results were obtained in an alternate model adjusted for pure-tone thresholds in addition to sex and DPOAE levels. No apparent relationship was found between wave I amplitude and either loudness tolerance or speech perception in quiet or noise. CONCLUSIONS: Reduced ABR wave I amplitude was associated with an increased risk of tinnitus, even after adjusting for DPOAEs and sex. In contrast, wave III and V amplitudes had little effect on tinnitus risk. This suggests that changes in peripheral input at the level of the inner hair cell or auditory nerve may lead to increases in central gain that give rise to the perception of tinnitus. Although the extent of synaptopathy in the study participants cannot be measured directly, these findings are consistent with the prediction that tinnitus may be a perceptual consequence of cochlear synaptopathy. PMID- 29337764 TI - A National Accreditation Program for Rectal Cancer: A Long and Winding Road. PMID- 29337765 TI - Digestive Tract Damage: A Predictor of Early Surgical Intervention in Patients With Newly Diagnosed Crohn's Disease. PMID- 29337763 TI - The Effect of Simulated Interaural Frequency Mismatch on Speech Understanding and Spatial Release From Masking. AB - OBJECTIVE: The binaural-hearing system interaurally compares inputs, which underlies the ability to localize sound sources and to better understand speech in complex acoustic environments. Cochlear implants (CIs) are provided in both ears to increase binaural-hearing benefits; however, bilateral CI users continue to struggle with understanding speech in the presence of interfering sounds and do not achieve the same level of spatial release from masking (SRM) as normal hearing listeners. One reason for diminished SRM in CI users could be that the electrode arrays are inserted at different depths in each ear, which would cause an interaural frequency mismatch. Because interaural frequency mismatch diminishes the salience of interaural differences for relatively simple stimuli, it may also diminish binaural benefits for spectral-temporally complex stimuli like speech. This study evaluated the effect of simulated frequency-to-place mismatch on speech understanding and SRM. DESIGN: Eleven normal-hearing listeners were tested on a speech understanding task. There was a female target talker who spoke five-word sentences from a closed set of words. There were two interfering male talkers who spoke unrelated sentences. Nonindividualized head-related transfer functions were used to simulate a virtual auditory space. The target was presented from the front (0 degrees ), and the interfering speech was either presented from the front (colocated) or from 90 degrees to the right (spatially separated). Stimuli were then processed by an eight-channel vocoder with tonal carriers to simulate aspects of listening through a CI. Frequency-to-place mismatch ("shift") was introduced by increasing the center frequency of the synthesis filters compared with the corresponding analysis filters. Speech understanding was measured for different shifts (0, 3, 4.5, and 6 mm) and target to-masker ratios (TMRs: +10 to -10 dB). SRM was calculated as the difference in the percentage of correct words for the colocated and separated conditions. Two types of shifts were tested: (1) bilateral shifts that had the same frequency-to place mismatch in both ears, but no interaural frequency mismatch, and (2) unilateral shifts that produced an interaural frequency mismatch. RESULTS: For the bilateral shift conditions, speech understanding decreased with increasing shift and with decreasing TMR, for both colocated and separate conditions. There was, however, no interaction between shift and spatial configuration; in other words, SRM was not affected by shift. For the unilateral shift conditions, speech understanding decreased with increasing interaural mismatch and with decreasing TMR for both the colocated and spatially separated conditions. Critically, there was a significant interaction between the amount of shift and spatial configuration; in other words, SRM decreased for increasing interaural mismatch. CONCLUSIONS: A frequency-to-place mismatch in one or both ears resulted in decreased speech understanding. SRM, however, was only affected in conditions with unilateral shifts and interaural frequency mismatch. Therefore, matching frequency information between the ears provides listeners with larger binaural hearing benefits, for example, improved speech understanding in the presence of interfering talkers. A clinical procedure to reduce interaural frequency mismatch when programming bilateral CIs may improve benefits in speech segregation that are due to binaural-hearing abilities. PMID- 29337766 TI - Worrying About Postoperative Functional Outcomes in Young Women With Colorectal Endometriosis: That's It! PMID- 29337767 TI - Presacral (Retrorectal) Tumors: Optimizing the Management Strategy. PMID- 29337768 TI - Expert Commentary on Presacral Tumors. PMID- 29337769 TI - Morbidity Following Coloanal Anastomosis: A Comparison of Colonic J-Pouch vs Straight Anastomosis. AB - BACKGROUND: Low rectal tumors are often treated with sphincter-preserving resection followed by coloanal anastomosis. OBJECTIVE: The purpose of this study was to compare the short-term complications following straight coloanal anastomosis vs colonic J-pouch anal anastomosis. DESIGN: Patients were identified who underwent proctectomy for rectal neoplasia followed by coloanal anastomosis in the 2008 to 2013 American College of Surgeons National Surgical Quality Improvement Program database. Demographic characteristics and 30-day postoperative complications were compared between groups. SETTINGS: A national sample was extracted from the American College of Surgeons National Surgical Quality Improvement Project database. PATIENTS: Inpatients following proctectomy and coloanal anastomosis for rectal cancer were selected. MAIN OUTCOME MEASURES: Demographic characteristics and 30-day postoperative complications were compared between the 2 groups. RESULTS: One thousand three hundred seventy patients were included, 624 in the straight anastomosis group and 746 in the colonic J-pouch group. Preoperative characteristics were similar between groups, with the exception of preoperative radiation therapy (straight anastomosis 35% vs colonic J-pouch 48%, p = 0.0004). Univariate analysis demonstrated that deep surgical site infection (3.7% vs 1.4%, p = 0.01), septic shock (2.25% vs 0.8%, p = 0.04), and return to the operating room (8.8% vs 5.0%, p = 0.0006) were more frequent in the straight anastomosis group vs the colonic J-pouch group. Major complications were also higher (23% vs 14%, p = 0.0001) and length of stay was longer in the straight anastomosis group vs the colonic J-pouch group (8.9 days vs 8.1 days, p = 0.02). After adjusting for covariates, major complications were less following colonic J-pouch vs straight anastomosis (OR, 0.57; CI, 0.38-0.84; p = 0.005). Subgroup analysis of patients who received preoperative radiation therapy demonstrated no difference in major complications between groups. LIMITATIONS: This study had those limitations inherent to a retrospective study using an inpatient database. CONCLUSION: Postoperative complications were less following colonic J-pouch anastomosis vs straight anastomosis. Patients who received preoperative radiation had similar rates of complications, regardless of the reconstructive technique used following low anterior resection. See Video Abstract at http://links.lww.com/DCR/A468. PMID- 29337770 TI - Survival Benefit of Japanese Extended Lymphadenectomy for Clinically Node Negative and Node-Positive Colorectal Cancers. AB - BACKGROUND: The impact of extended lymphadenectomy for colorectal cancer is still not sufficiently clear. OBJECTIVE: The aim of the present study was to evaluate the survival benefit of extended lymphadenectomy compared with nonextended lymphadenectomy for clinically node-negative and node-positive colorectal cancers. DESIGN: The present study was a retrospective cohort study that used prospectively collected data and a propensity score matching method. SETTINGS: The present study was conducted at a single specialized colorectal surgery department. PATIENTS: Of the 1314 patients who underwent radical resection with nonextended or extended lymphadenectomy between 1988 and 2007, we included 711 and 603 patients in the cN0 and cN1/2 series. Propensity score matching was applied, and 141 and 63 pairs were extracted from the cN0 and cN1/2 series. MAIN OUTCOME MEASURES: Disease-free survival, cancer-specific survival, and overall survival of the 2 groups were calculated and compared. RESULTS: In the cN0 series, no differences were observed in the long-term outcomes between the nonextended and extended groups. In the cN1/2 series, the disease-free survival, cancer-specific survival and overall survival were significantly higher (log rank, p = 0.04, p = 0.02, and p = 0.01, respectively), and the frequency of local recurrence was significantly lower (p = 0.04) in the extended group. LIMITATIONS: The present study was limited by its nonrandomized retrospective design. CONCLUSIONS: Extended lymphadenectomy demonstrated a good inhibitory effect on the local recurrence rate and led to improved disease-free survival, cancer specific survival, and overall survival of patients in the cN1/2 series. See Video Abstract at http://links.lww.com/DCR/A517. PMID- 29337771 TI - Outcomes of Closed Versus Open Defects After Local Excision of Rectal Neoplasms: A Multi-institutional Matched Analysis. AB - BACKGROUND: The management of the rectal wall defect after local excision of rectal neoplasms remains controversial, and the existing data are equivocal. OBJECTIVE: This study aimed to determine the effect of open versus closed defects on postoperative outcomes after local excision of rectal neoplasms. DESIGN: Data from 3 institutions were analyzed. Propensity score matching was performed in one to-one fashion to create a balanced cohort comparing open and closed defects. SETTINGS: This study was conducted at high-volume specialist referral hospitals. PATIENTS: Adult patients undergoing local excision via transanal endoscopic surgery from 2004 to 2016 were included. Patients were assigned to open- and closed-defect groups, and further stratified by full- or partial-thickness excision. INTERVENTION: Closure of the rectal wall defect was performed at the surgeon's discretion. MAIN OUTCOME MEASURES: The primary outcome measured was the incidence of 30-day complications. RESULTS: A total of 991 patients were eligible (593 full-thickness excision with 114 open and 479 closed, and 398 partial thickness excision with 263 open and 135 closed). After matching, balanced cohorts consisting of 220 patients with full-thickness excision and 210 patients with partial-thickness excision were created. Operative time was similar for open and closed defects for both full-and partial-thickness excision. The incidence of 30-day complications was similar for open and closed defects after full- (15% vs. 12%, p = 0.432) and partial-thickness excision (7% vs 5%, p = 0.552). The total number of complications was also similar after full- or partial-thickness excision. Patients undergoing full-thickness excision with open defects had a higher incidence of clinically significant bleeding complications (9% vs 3%, p = 0.045). LIMITATIONS: Data were obtained from 3 institutions with different equipment and perioperative management over a long time period. CONCLUSIONS: There was no difference in overall complications between open and closed defects for patients undergoing local excision of rectal neoplasms, but there may be more bleeding complications in open defects after full-thickness excision. A selective approach to defect closure may be appropriate. See Video Abstract at http://links.lww.com/DCR/A470. PMID- 29337772 TI - Salvage Surgery for Locoregional Failure in Anal Squamous Cell Carcinoma. AB - BACKGROUND: Anal squamous cell carcinoma is a rare cancer with a high cure rate, making research into the treatment of locoregional failure difficult. OBJECTIVE: The purpose of this study was to examine factors related to local treatment failure and determine the outcomes of patients undergoing local salvage resection. DESIGN: This was a retrospective cohort study. SETTING: This study was conducted at a quaternary referral center. PATIENTS: Patients with anal squamous cell carcinoma treated with chemoradiotherapy between January 1983 and December 2015 were included. MAIN OUTCOME MEASURES: The influence of patient-, tumor-, and treatment-related factors on the primary outcome measures of locoregional failure, overall survival, and disease-free survival were investigated. RESULTS: Of 467 patients with anal squamous cell carcinoma, 63 experienced locoregional failure with 41 undergoing salvage resection. Twenty-seven patients (38%) had persistent disease and 36 (62%) developed locoregional recurrence. Multivariate analysis identified tumor stage (HR, 3.16; p < 0.002) as an independent predictor of locoregional failure. Thirty abdominoperineal resections and 11 pelvic exenterations were undertaken with no surgical mortality. At a median follow-up of 20 months (range, 4-150 months), 5-year overall and disease-free survival for the salvage cohort was 51% and 47%. Margin positivity was an independent predictor for relapse post-salvage surgery on multivariate analysis (HR, 20.1; p = 0.027). Nineteen patients (48%) developed further relapse, which included all 10 patients with a positive resection margin, 3 of whom underwent re-resection. Of the 19 patients with relapse, 3 remain alive and 2 have persistent disease. LIMITATIONS: Limitations include the retrospective nature of the database, the prolonged time period of the study, and episodes of incomplete data. CONCLUSIONS: Advanced T stage is an independent predictor of local failure in anal squamous cell carcinoma. Most patients can be salvaged, with a positive resection margin being a strong predictor of further relapse and poor outcome. See Video Abstract at http://links.lww.com/DCR/A515. PMID- 29337773 TI - Prognostic Factors for Locoregional Recurrence in Neuroendocrine Tumors of the Rectum. AB - BACKGROUND: Optimal management of rectal neuroendocrine tumors is not yet well defined. Various pathologic factors, particularly tumor size, have been proposed as prognostic markers. OBJECTIVE: We characterized sequential patients diagnosed with rectal neuroendocrine tumors in a population-based setting to determine whether tumor size and other pathologic markers could be useful in guiding locoregional management. DESIGN: This study is a retrospective analysis of data from the British Columbia provincial cancer registry. SETTINGS: The study was conducted at a tertiary care center. PATIENTS: Sequential patients diagnosed with rectal neuroendocrine tumors between 1999 and 2011 were identified. Neuroendocrine tumors were classified as G1 and G2 tumors with a Ki-67 <=20% and/or mitotic count <=20 per high-power field. MAIN OUTCOME MEASURES: Baseline clinicopathologic data including TNM staging, depth of invasion, tumor size, treatment modalities, and outcomes including survival data were measured. RESULTS: Of 91 rectal neuroendocrine tumors, the median patient age was 58 years, and 35 were men. Median tumor size was 6 mm. Median length of follow-up was 58.1 months, with 3 patients presenting with stage IV disease. Treatment included local ablation (n = 5), local excision (n = 79), surgical resection (n = 4), and pelvic radiation (n = 1; T3N1 tumor). Final margin status was positive in 17 cases. Local relapse occurred in 8 cases and 1 relapse to bone 13 months after T3N1 tumor resection. Univariate analysis demonstrated an association between local relapse and Ki-67, mitotic count, grade, and lymphovascular invasion (p < 0.01). Larger tumor size was associated with decreased disease-free survival. LIMITATIONS: Sample size was 91 patients in the whole provincial population over a 13-year time period because of the low incidence of rectal neuroendocrine tumors. CONCLUSIONS: In this population-based cohort, rectal neuroendocrine tumors generally presented with small, early tumors and were treated with local excision or surgical resection without pelvic radiation. Pathologic markers play a role in risk stratification and prognostication. See Video Abstract at http://links.lww.com/DCR/A514. PMID- 29337775 TI - Comparisons of Rigid Proctoscopy, Flexible Colonoscopy, and Digital Rectal Examination for Determining the Localization of Rectal Cancers. AB - BACKGROUND: Rigid proctoscopy is considered essential for rectal tumor localization, although the current gold standard for detection of colorectal cancers is colonoscopy. The European Society for Medical Oncology Guidelines indicate that rigid and flexible endoscopies afford essentially identical results, although little evidence is yet available to support this. OBJECTIVE: The purpose of this study was to determine the accuracy of colonoscopy in identifying the location of rectal cancer and to compare the results with those of rigid proctoscopy and digital rectal examination. DESIGN: This was a retrospective analysis of a prospective database. SETTINGS: The study was conducted at a single tertiary colorectal surgery referral center. PATIENTS: A total of 173 patients scheduled for curative surgery for histologically verified rectal adenocarcinoma between December 2009 and February 2015 were entered into the study, after having given informed consent. MAIN OUTCOME MEASURES: The main study measure was the mean difference and limits of agreement in assessment of the height of the distal edge of rectal cancer from the anal verge, using the Bland and Altman method. RESULTS: The mean difference between rigid proctoscopy and flexible colonoscopy was -0.2 cm (95% CI, -2.0 to 1.6 cm). The mean difference between rigid proctoscopy and digital rectal examination was 0.3 cm (95% CI, 1.9 to 2.4 cm). Intermethod variability larger than the 95% CI between rigid and flexible endoscopes was correlated to the tumor height (OR, 4.27 (95% CI, 1.84-3.10); p = 0.021). LIMITATIONS: This study was conducted in a single center. CONCLUSIONS: The limits of agreement (-2.0 and 1.6 cm) in identifying the height of rectal cancers from the anal verge are sufficiently small to support the view that flexible colonoscopy provides similar tumor locations to those measured by rigid proctoscopy, although the discrepancy occasionally exceeded 2 cm for tumors >5 cm above the anal verge. See Video Abstract at http://links.lww.com/DCR/A405. PMID- 29337774 TI - Gadolinium-Based Contrast Agent During Pelvic MRI: Contribution to Patient Management in Rectal Cancer. AB - BACKGROUND: Few publications exist regarding gadolinium-enhanced sequences in rectal MRI. None have evaluated its potential impact on patient management. OBJECTIVE: This study aimed to assess whether gadolinium-enhanced sequences, including dynamic contrast enhancement, change radiologic interpretation and clinical management of rectal cancer. DESIGN: This is a retrospective analysis of 100 rectal MRIs (50 baseline and 50 postneoadjuvant treatment), both without and with gadolinium-enhanced sequences. Treatment plans were rendered based on each radiologic interpretation for each case by a single experienced surgeon. Differences in radiologic interpretation and management were statistically analyzed. SETTINGS: The study was conducted at the Memorial Sloan Kettering Cancer Center. PATIENTS: Patients undergoing rectal MRI between 2011 and 2015 for baseline tumor staging and/or postneoadjuvant restaging were included. MAIN OUTCOME MEASURES: Primary outcome measures were changes in radiologic tumor stage, tumor margins, and surgical planning with the use of gadolinium at baseline and postneoadjuvant time points. RESULTS: At baseline, tumor downstaging occurred in 8 (16%) of 50 and upstaging in 4 (8%) of 50 with gadolinium. Postneoadjuvant treatment, upstaging occurred in 1 (2%) of 50 from T2 to T3a. At baseline, mean distances from tumor to anorectal ring, anal verge, and mesorectal fascia were not statistically different with gadolinium. However, in 7 patients, differences could have resulted in treatment changes, accounted for by changes in relationships to anterior peritoneal reflection (n = 4), anorectal ring (n = 2), or anal verge (n = 1). Postneoadjuvant treatment, distances to anorectal ring and anal verge (in centimeters) were statistically smaller with gadolinium (p = 0.0017 and p = 0.0151) but could not have resulted in clinically significant treatment changes. LIMITATIONS: This study was limited by its retrospective design. CONCLUSIONS: The use of gadolinium at baseline MRI could have altered treatment in 24% of patients because of differences in tumor stage or position. Postneoadjuvant treatment, gadolinium resulted in statistically smaller distances to sphincters, which could influence surgical decision for sphincter-preserving rectal resection. See Video Abstract at http://links.lww.com/DCR/A444. PMID- 29337776 TI - Lemann Index at Diagnosis Predicts the Risk of Early Surgery in Crohn's Disease. AB - BACKGROUND: Identifying patients with Crohn's disease with rapid disease progress or high risk of early surgery is crucial to clinical decision making. OBJECTIVE: The aim was to evaluate the correlation between the Lemann index at diagnosis and abdominal surgery in the first year after Crohn's disease diagnosis and to find the risk factors for early surgery. DESIGN: This was a retrospective cohort study. SETTINGS: The study was conducted at a single tertiary hospital. PATIENTS: Patients diagnosed with Crohn's disease between 2013 and 2015 in our center were included. MAIN OUTCOME MEASURES: The outcome of interest was the need for an abdominal surgery within 1 year after the Lemann index evaluation at diagnosis. RESULTS: Of 212 eligible patients, 48 patients underwent abdominal surgery during follow-up. Lemann index was much higher in the surgery group (5.3 vs 2.6; p < 0.001). On tertiles of the Lemann index, the frequency of surgery grew (2.8%, 9.9%, and 55.7%; p < 0.001) as the Lemann index increased. The receiver operating characteristic curve was constructed taking into account the Lemann index for selecting patients with a high risk of surgery. Specificity, sensitivity, and area under receiver operating characteristic curve were 84.8%, 81.3%, and 0.89 of the Lemann Index at a cutoff level of 3.7. Patients with Lemann index >=3.7 carried a higher risk of abdominal surgery (OR = 18.6; p < 0.001). Stricturing and penetrating disease were predictors for abdominal surgery, whereas antitumor necrosis factor treatment was associated with a significant reduction of surgical requirements. LIMITATIONS: This study was limited by its retrospective design. The ability of the Lemann index to predict the long-term risk of surgery was unknown. CONCLUSIONS: Lemann index at diagnosis is a reliable index to predict the risk of abdominal surgery in the first year after diagnosis of Crohn's disease. Patients with a high Lemann index might need closer follow-up or aggressive medical therapy. See Video Abstract at http://links.lww.com/DCR/A518. PMID- 29337777 TI - Rescue Diverting Loop Ileostomy: An Alternative to Emergent Colectomy in the Setting of Severe Acute Refractory IBD-Colitis. AB - BACKGROUND: Severe acute refractory colitis has traditionally been an indication for emergent colectomy in IBD, yet under these circumstances patients are at elevated risk for complications because of their heightened inflammatory state, nutritional deficiencies, and immunocompromised state. OBJECTIVE: We hypothesized that rescue diverting loop ileostomy may be a viable alternative to emergent colectomy, providing the opportunity for colonic healing and patient optimization before more definitive surgery. DESIGN: This was a retrospective case series. SETTINGS: The study was conducted at a single academic center. PATIENTS: Patients with severe acute medically refractory IBD-related colitis were included. INTERVENTION: Rescue diverting loop ileostomy was the intervening procedure. MAIN OUTCOME MEASURES: The primary outcome was avoidance of urgent/emergent colectomy. The secondary outcome was efficacy, defined by 3 clinical aims: 1) reduced steroid dependence or opportunity for bridge to medical rescue, 2) improved nutritional status, and 3) ability to undergo an elective laparoscopic definitive procedure or ileostomy reversal with colon salvage. RESULTS: Among 33 patients, 14 had Crohn's disease and 19 had ulcerative colitis. Three patients required urgent/emergent colectomy, 2 with ulcerative colitis and 1 with Crohn's disease. Across both disease cohorts, >80% of patients achieved each clinical aim for efficacy: 88% reduced their steroid dependence or were able to bridge to medical rescue, 87% improved their nutritional status, and 82% underwent an elective laparoscopic definitive procedure or ileostomy reversal. A total of 4 patients (11.7%) experienced a postoperative complication following diversion, including 3 surgical site infections and 1 episode of acute kidney injury. LIMITATIONS: The study was limited by being a single-center, retrospective series. CONCLUSIONS: Rescue diverting loop ileostomy in the setting of severe, refractory IBD-colitis is a safe and effective alternative to emergent colectomy. This procedure has acceptably low complication rates and affords patients time for medical and nutritional optimization before definitive surgical intervention. See Video Abstract at http://links.lww.com/DCR/A520. PMID- 29337779 TI - Does Ventral Rectopexy Improve Pelvic Floor Function in the Long Term? AB - BACKGROUND: Information is needed on long-term functional results, sequelas, and outcome predictors for laparoscopic ventral mesh rectopexy. OBJECTIVE: The purpose of this study was to evaluate long-term function postventral rectopexy in patients with external rectal prolapse or internal rectal prolapse in a large cohort and to identify the possible effects of patient-related factors and operative technical details on patient-reported outcomes. DESIGN: This was a retrospective review with a cross-sectional questionnaire study. SETTINGS: Data were collated from prospectively collected registries in 2 university and 2 central hospitals in Finland. PATIENTS: All 508 consecutive patients treated with ventral rectopexy for external rectal prolapse or symptomatic internal rectal prolapse in 2005 to 2013 were included. INTERVENTIONS: A questionnaire concerning disease-related symptoms and effect on quality of life was used. MAIN OUTCOME MEASURES: Defecatory function measured by the Wexner score, the obstructive defecation score, and subjective symptom and quality-of-life evaluation using the visual analog scale were included. The effects of patient-related factors and operative technical details were assessed using multivariate analysis. RESULTS: The questionnaire response rate was 70.7% (330/467 living patients) with a median follow-up time of 44 months. The mean Wexner scores were 7.0 (SD = 6.1) and 6.9 (SD = 5.6), and the mean obstructive defecation scores were 9.7 (SD = 7.6) and 12.3 (SD = 8.0) for patients presenting with external rectal prolapse and internal rectal prolapse. Subjective symptom relief was experienced by 76% and reported more often by patients with external rectal prolapse than with internal rectal prolapse (86% vs 68%; p < 0.001). Complications occurred in 11.4% of patients, and the recurrence rate for rectal prolapse was 7.1%. LIMITATIONS: This study was limited by its lack of preoperative functional data and suboptimal questionnaire response rate. CONCLUSIONS: Ventral mesh rectopexy effectively treats posterior pelvic floor dysfunction with a low complication rate and an acceptable recurrence rate. Patients with external rectal prolapse benefit more from the operation than those with symptomatic internal rectal prolapse. See Video Abstract at http://links.lww.com/DCR/A479. PMID- 29337778 TI - Pelvic Pain and Quality of Life Before and After Laparoscopic Bowel Resection for Rectosigmoid Endometriosis: A Prospective, Observational Study. AB - BACKGROUND: Surgery for rectosigmoid endometriosis carries a substantial risk of short- and long-term complications, which has to be counterbalanced against the potential effect of the procedure. Prospective data are scarce in the field of deep infiltrating endometriosis surgery. OBJECTIVE: The study aimed to assess pelvic pain and quality of life before and after laparoscopic bowel resection for rectosigmoid endometriosis. DESIGN: The study involved prospectively collected data regarding pelvic pain and quality of life before and after surgery. SETTINGS: It was conducted at a tertiary endometriosis referral unit at Aarhus University Hospital. PATIENTS: A total of 175 women were included. INTERVENTION: Patients underwent laparoscopic bowel resection for endometriosis. MAIN OUTCOME MEASURES: Questionnaires for pain (Numerical Rating Scale) and quality of life (RAND Short Form-36) were answered before and 1 year after surgery. Data on analgesic and hormone treatment were collected. Preoperative and postoperative pelvic pain and quality-of-life scores were compared, and risk factors for improvement/worsening were identified. RESULTS: A total of 97.1% of the women completed the 1-year follow up. A significant decrease (p = 0.0001) was observed on all pelvic pain parameters. Most profound was the decrease in dyschezia. A significant improvement on all quality-of-life scores was observed (p = 0.0001). A surgical complication did not have a negative impact on outcome 1 year after surgery. The postoperative outcome was not related to the type of surgery. LIMITATIONS: This is an observational study without a control group. Risk factor data should be interpreted with caution, because the study was relatively underpowered for some of the rare outcomes. CONCLUSIONS: A significant and clinically relevant improvement in pelvic pain and quality of life 1 year after laparoscopic bowel resection for endometriosis was found. We strongly recommend surgery for rectosigmoid endometriosis that is unresponsive to conservative treatment. See Video Abstract at http://links.lww.com/DCR/A472. PMID- 29337780 TI - Efficacy and Safety of Sodium Picosulfate/Magnesium Citrate for Bowel Preparation in a Physically Disabled Outpatient Population: A Randomized, Endoscopist-Blinded Comparison With Ascorbic Acid-Enriched Polyethylene Glycol Solution Plus Bisacodyl (The PICO-MOVI Study). AB - BACKGROUND: Because of its volume, adequate bowel preparation remains problematic in physically unfit patients. OBJECTIVE: This study aimed to compare a small volume sodium picosulfate/magnesium citrate preparation with a 2-L ascorbic acid enriched polyethylene glycol solution plus bisacodyl. DESIGN: This study has a noninferiority design, assuming that ascorbic acid-enriched polyethylene glycol solution plus bisacodyl is 70% efficacious in achieving an Ottawa score <=7 and accepting a difference in success rate of <15% with a target enrollment of 146 patients per group. SETTING: This study was conducted in an outpatient department. PATIENTS: Patients referred for diagnostic colonoscopy were randomly assigned. Key exclusion criteria were severe kidney disease, ASA class >=III, and hospital admission. INTERVENTION: Patients were randomly assigned to receive sodium picosulfate/magnesium citrate or ascorbic acid-enriched polyethylene glycol solution plus bisacodyl according to a split-dose regimen. Patients in the sodium picosulfate/magnesium citrate group received advice on the recommended 4-L fluid intake. Patients in the ascorbic acid-enriched polyethylene glycol solution plus bisacodyl group received 2 bisacodyl tablets 2 days before and advice on the additionally recommended 2-L fluid intake. MAIN OUTCOME MEASURES: To assess bowel cleansing adequacy, the Ottawa, Aronchick, and Boston scores were used. Colonoscopy quality measures were obtained. Safety was assessed for a 30-day follow-up period. RESULTS: Overall, 341 patients (169 men, mean age 57.0 years; BMI 26.2 kg/m) were included. Comorbidities were present in 76.2% of patients, and 75.4% of patients used medication. An adequate Ottawa score was obtained in 81.4% and 75.8% of patients receiving ascorbic acid-enriched polyethylene glycol solution plus bisacodyl and sodium picosulfate/magnesium citrate (difference of 5.6% (95% CI, -3.5 to -14.6; p = 0.023)), showing noninferiority of the sodium picosulfate/magnesium citrate therapy. Ottawa segmental scores were lower for sodium picosulfate/magnesium citrate in the right and transverse colon. In both groups, successful ileocecal intubation was achieved in 95%. No medication related adverse events were reported. LIMITATIONS: These results in a physically disabled ambulant population cannot be extrapolated to immobile, hospitalized patients. CONCLUSIONS: Sodium picosulfate/magnesium citrate proved to be noninferior to ascorbic acid-enriched polyethylene glycol solution plus bisacodyl in efficacy and safety. Timing of the colonoscopy and addition of bisacodyl to sodium picosulfate/magnesium citrate warrants further consideration. See Video Abstract at http://links.lww.com/DCR/A461. PMID- 29337781 TI - Comparison of Western and Asian Guidelines Concerning the Management of Colon Cancer. AB - BACKGROUND: Guidelines are important to standardize treatments and optimize outcomes. Several societies have published authoritative guidelines for patients with colon cancer, and a certain degree of variation can be predicted. OBJECTIVE: This study aims to compare Western and Asian guidelines for the management of colon cancer. DATA SOURCES: A literature review was performed following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for studies published between 2010 and 2017 by the online resources from the official Web sites of the societies/panels. Sources included guidelines by European Society of Medical Oncology, the Japanese Society for Cancer of the Colon and Rectum, and the National Comprehensive Cancer Network. STUDY SELECTION: Only full-text studies and the latest guidelines dealing with colon cancer were included. Studies and guidelines were separately assessed by 2 authors, who independently identified discrepancies and areas for further research. These were discussed and agreed with by all the authors. MAIN OUTCOME MEASURES: The recommendations of the guidelines of each society were compared, seeking discrepancies and potential areas for improvement. RESULTS: Endoscopic techniques for the management of early colon cancer are discussed in detail in the Asian guidelines. Asian guidelines advocate extended (D3) lymphadenectomy on a routine basis in T3/T4 and in selected T2 patients, whereas such an approach is still under investigation in Western countries. Only US guidelines describe neoadjuvant chemotherapy and radiotherapy. All the guidelines recommend adjuvant treatment in selected stage II patients, but agreement exists that this is performed without solid evidence, because better outcomes are hypothesized based on studies including stage III or stage II/III patients. The role of cytoreductive surgery with intra-abdominal chemotherapy is dubious, and European guidelines only recommend it in the setting of trials. Asian guidelines endorse an aggressive surgical approach to peritoneal disease. Only US guidelines include a patient advocate in the drafting panel. LIMITATIONS: Bias may have arisen from country-specific socioeconomic and cultural issues, and from the latest available updates. CONCLUSIONS: Surgical approaches to colon cancer differ significantly among Western and Asian guidelines, reflecting different concepts of treatment. The role of adjuvant treatment in node-negative disease and quality-of-life assessment need further research. PMID- 29337782 TI - Laparoscopic Rectovaginopexy for Neorectal Prolapse After Transanal Total Mesorectal Excision. PMID- 29337783 TI - S1 Sacrectomy for Re-recurrent Rectal Cancer: Our Experience with Reconstruction Using an Expandable Vertebral Body Replacement Device. AB - INTRODUCTION: R0 resection is achieved by high sacrectomy for local recurrence of colorectal cancer, but significant rates of perioperative complications and long term patient morbidity are associated with this procedure. In this report, we outline our unique experience of using an expandable cage for vertebral body reconstruction following S1 sacrectomy in a 66-year-old patient with re-recurrent rectal cancer. We aim to highlight several key steps, with a view to improving postoperative outcomes. TECHNIQUE: A midline laparotomy was performed with the patient in supine Lloyd-Davies position, demonstrating recurrence of tumor at the S1 vertebral body. Subtotal vertebral body excision of S1 with sparing of the posterior wall and ventral foramina was completed by using an ultrasonic bone aspirator. Reconstruction was performed using an expandable corpectomy spacer system. The system was assembled and expanded in situ to optimally bridge the corpectomy. The device was secured into the L5 and S2 vertebrae by means of angled end plate screws superiorly and inferiorly. Bone grafts were positioned adjacent to the implant after this. RESULTS: Total operating time was 266 minutes with 350 mL of intraoperative blood loss. There were no immediate postoperative complications. The patient did not report any back pain at the time of discharge, and no neurological deficit was reported or identified. Postoperative CT scan showed excellent vertebral alignment and preservation of S1 height. CONCLUSION: We conclude that high sacrectomy with an expandable metal cage is feasible in the context of re-recurrent rectal cancer when consideration is given to the method of osteotomy and vertebral body replacement. PMID- 29337784 TI - The Sharp End of Pilonidal Disease. PMID- 29337785 TI - Authors Reply. PMID- 29337786 TI - Mechanical Bowel Preparation Before Colorectal Surgery in Enhanced Recovery Programs: Discrepancy Between the American and European Guidelines. PMID- 29337787 TI - Authors Reply. PMID- 29337790 TI - Can a Multicenter Pneumonia Zero Bundle Reduce Ventilator-Associated Pneumonias? PMID- 29337789 TI - Multicohort Analysis of Whole-Blood Gene Expression Data Does Not Form a Robust Diagnostic for Acute Respiratory Distress Syndrome. AB - OBJECTIVES: To identify a novel, generalizable diagnostic for acute respiratory distress syndrome using whole-blood gene expression arrays from multiple acute respiratory distress syndrome cohorts of varying etiologies. DATA SOURCES: We performed a systematic search for human whole-blood gene expression arrays of acute respiratory distress syndrome in National Institutes of Health Gene Expression Omnibus and ArrayExpress. We also included the Glue Grant gene expression cohorts. STUDY SELECTION: We included investigator-defined acute respiratory distress syndrome within 48 hours of diagnosis and compared these with relevant critically ill controls. DATA EXTRACTION: We used multicohort analysis of gene expression to identify genes significantly associated with acute respiratory distress syndrome, both with and without adjustment for clinical severity score. We performed gene ontology enrichment using Database for Annotation, Visualization and Integrated Discovery and cell type enrichment tests for both immune cells and pneumocyte gene expression. Finally, we selected a gene set optimized for diagnostic power across the datasets and used leave-one-dataset out cross validation to assess robustness of the model. DATA SYNTHESIS: We identified datasets from three adult cohorts with sepsis, one pediatric cohort with acute respiratory failure, and two datasets of adult patients with trauma and burns, for a total of 148 acute respiratory distress syndrome cases and 268 critically ill controls. We identified 30 genes that were significantly associated with acute respiratory distress syndrome (false discovery rate < 20% and effect size >1.3), many of which had been previously associated with sepsis. When metaregression was used to adjust for clinical severity scores, none of these genes remained significant. Cell type enrichment was notable for bands and neutrophils, suggesting that the gene expression signature is one of acute inflammation rather than lung injury per se. Finally, an attempt to develop a generalizable diagnostic gene set for acute respiratory distress syndrome showed a mean area under the receiver-operating characteristic curve of only 0.63 on leave-one-dataset-out cross validation. CONCLUSIONS: The whole-blood gene expression signature across a wide clinical spectrum of acute respiratory distress syndrome is likely confounded by systemic inflammation, limiting the utility of whole-blood gene expression studies for uncovering a generalizable diagnostic gene signature. PMID- 29337791 TI - "Judge a Man by His Questions Rather Than by His Answers" Voltaire. PMID- 29337792 TI - Early Fluid Management in Sepsis: Yes. PMID- 29337793 TI - Expanding the Reach of Critical Care Pharmacists Globally. PMID- 29337794 TI - Noninvasive Treatment of Hypoxemic Respiratory Failure: Give It a Try... But Do Not Push Too Hard. PMID- 29337795 TI - Renal Decapsulation to Treat Ischemic Acute Kidney Injury: A New Twist in an Old Tale. PMID- 29337796 TI - Prolonged Infusions: The Significance of How. PMID- 29337797 TI - Beta-Lactam Therapeutic Drug Monitoring in the Critically Ill Children: Big Solution for Infections in Small People? PMID- 29337798 TI - (Not) Everybody Is Working for the Weekend. PMID- 29337799 TI - Ventilator Management Guided by Driving Pressure: A Better Way to Protect the Lungs? PMID- 29337800 TI - Old Wine in New Bottles: Continuous Versus Intermittent Renal Replacement Therapy in the ICU. PMID- 29337801 TI - Informed or Misinformed Consent? PMID- 29337802 TI - Mesenchymal Stromal Cell Therapy: Does the Source Matter? PMID- 29337803 TI - From Big Data to Artificial Intelligence: Harnessing Data Routinely Collected in the Process of Care. PMID- 29337805 TI - Donation After Cardiocirculatory Determination of Death Requires "Timely" Rather Than "Early" Referral. PMID- 29337804 TI - The Association Between Ventilator Dyssynchrony, Delivered Tidal Volume, and Sedation Using a Novel Automated Ventilator Dyssynchrony Detection Algorithm. AB - OBJECTIVE: Ventilator dyssynchrony is potentially harmful to patients with or at risk for the acute respiratory distress syndrome. Automated detection of ventilator dyssynchrony from ventilator waveforms has been difficult. It is unclear if certain types of ventilator dyssynchrony deliver large tidal volumes and whether levels of sedation alter the frequency of ventilator dyssynchrony. DESIGN: A prospective observational study. SETTING: A university medical ICU. PATIENTS: Patients with or at risk for acute respiratory distress syndrome. INTERVENTIONS: Continuous pressure-time, flow-time, and volume-time data were directly obtained from the ventilator. The level of sedation and the use of neuromuscular blockade was extracted from the medical record. Machine learning algorithms that incorporate clinical insight were developed and trained to detect four previously described and clinically relevant forms of ventilator dyssynchrony. The association between normalized tidal volume and ventilator dyssynchrony and the association between sedation and the frequency of ventilator dyssynchrony were determined. MEASUREMENTS AND MAIN RESULTS: A total of 4.26 million breaths were recorded from 62 ventilated patients. Our algorithm detected three types of ventilator dyssynchrony with an area under the receiver operator curve of greater than 0.89. Ventilator dyssynchrony occurred in 34.4% (95% CI, 34.41-34.49%) of breaths. When compared with synchronous breaths, double triggered and flow-limited breaths were more likely to deliver tidal volumes greater than 10 mL/kg (40% and 11% compared with 0.2%; p < 0.001 for both comparisons). Deep sedation reduced but did not eliminate the frequency of all ventilator dyssynchrony breaths (p < 0.05). Ventilator dyssynchrony was eliminated with neuromuscular blockade (p < 0.001). CONCLUSION: We developed a computerized algorithm that accurately detects three types of ventilator dyssynchrony. Double-triggered and flow-limited breaths are associated with the frequent delivery of tidal volumes of greater than 10 mL/kg. Although ventilator dyssynchrony is reduced by deep sedation, potentially deleterious tidal volumes may still be delivered. However, neuromuscular blockade effectively eliminates ventilator dyssynchrony. PMID- 29337806 TI - The authors reply. PMID- 29337807 TI - Extracorporeal Membrane Oxygenation-Associated Infections: Carefully Consider Cannula Infections! PMID- 29337808 TI - The authors reply. PMID- 29337809 TI - Untargeted Antifungal Treatment in the ICU: Changing Definitions and Labels Do Not Change the Evidence. PMID- 29337810 TI - The authors reply. PMID- 29337811 TI - Individualizing Cerebral Perfusion Pressure Targets. PMID- 29337812 TI - The authors reply. PMID- 29337813 TI - Heparin-Free Regional Anticoagulation: There Are Significant Differences Between Citrate-Containing Dialysate and Regional Citrate Anticoagulation. PMID- 29337814 TI - The authors reply. PMID- 29337815 TI - Impact of Moderate Hyperchloremia on Clinical Outcomes in Intracerebral Hemorrhage Patients. Is There Still Room for Continuous Infusion of 3% Hypertonic Saline? PMID- 29337816 TI - The authors reply. PMID- 29337817 TI - Burnout Research: Eyes Wide Shut. PMID- 29337818 TI - The authors reply. PMID- 29337819 TI - Is Oxygenation Really an Intrinsic Predictive Factor of Mortality in Patients Undergoing Extracorporeal Life Support? PMID- 29337820 TI - The authors reply. PMID- 29337821 TI - Systolic Dysfunction Following Traumatic Brain Injury. PMID- 29337822 TI - The authors reply. PMID- 29337823 TI - Noninvasive Ventilation in Acute Respiratory Failure: Who Will Benefit? PMID- 29337824 TI - The authors reply. PMID- 29337825 TI - Effect of Patient- and Family-Centered Care Interventions on ICU Length of Stay. PMID- 29337826 TI - The author replies. PMID- 29337827 TI - Severe Burnout Is Common Among Critical Care Physician Assistants: Retraction. PMID- 29337828 TI - Semiautomated Subretinal Fluid Injection Method Using Viscous Fluid Injection Mode. PMID- 29337829 TI - Estimation of Repetitions to Failure for Monitoring Resistance Exercise Intensity: Building a Case for Application. AB - Hackett, DA, Cobley, SP, and Halaki, M. Estimation of repetitions to failure for monitoring resistance exercise intensity: Building a case for application. J Strength Cond Res 32(5): 1352-1359, 2018-The purpose of this study was to (a) examine the accuracy of Estimated Repetitions to Failure (ERF) during resistance exercise between 2 sessions and (b) compare ERF to rating of perceived exertion (RPE) for determining proximity to momentary failure. Forty-eight adults with recreational resistance training experience performed 3 sets of 10 repetitions at 70% one-repetition maximum (1RM) and 80% 1RM for the chest press and leg press, respectively. At the completion of each set, participants reported their ERF and then continued repetitions to failure to determine actual repetitions to failure (ARF). Two sessions of the same experimental protocol were performed with 48 hours between bouts. For session 1, error in ERF was greater during the first sets compared with third sets for the chest press (2.0 vs. 0.6 repetitions and p < 0.001) and leg press (3.1 vs. 1.6 repetitions and p < 0.001). No differences for error in ERF were observed between sessions 1 and 2 for the chest press (p > 0.944); however, less error in ERF was found for the leg press during set 1 of session 2 (3.1 vs. 1.9 repetitions and p < 0.013). Strong to very strong relationships were found between ERF and ARF (r = 0.59-0.87 and p < 0.01), whereas most relationships for RPE and ARF were small to moderate (r = 0.32 to 0.42 and p < 0.01). Improvement in the accuracy of ERF after a single training bout is minimal, whereas ERF compared with RPE seems to have greater sensitivity for discriminating momentary failure. PMID- 29337830 TI - Exploring the effects of playing formations on tactical behaviour and external workload during football small-sided games. AB - This study aimed to identify the effects of playing formations on tactical behaviour and external workload during football small-sided games. Twenty-three semi-professional footballers integrated three different playing formations in a 7-a-side small-sided game, according to their specific player positions: team 4:3:0 (4 defenders, 3 midfielders); team 4:1:2 (4 defenders, 1 midfielder, 2 forwards); and team 0:4:3 (4 midfielders, 3 forwards). Based on players' movement trajectories, the following individual and collective tactical variables were calculated: total distance covered and distance covered while walking, jogging, running and sprinting, distance from each player to both own and opponent's team centroid (Dist CG and Dist OPP CG, respectively), individual area, team length, team width and surface area. Approximate entropy (ApEn) was computed to identify the regularity of each variable. The team 4:3:0 promoted players' space exploration with moderate physical efforts. The team 4:1:2 promoted compactness and regularity of the team with increase in the physical efforts. The team 0:4:3 promoted team balance and adaptability on space coverage with increase in physical efforts. Concluding, different playing formations support different game dynamics, and variations on external load were directly linked with the variations on tactical behaviour. The analysis tactical behaviour through quantification of variability of patterns of play and quantification of distance covered at different velocities were the most useful information for the analysis of the effects of practice task manipulations. Therefore, in a practical sense, strength and conditioning coaches should plan and monitor these tasks in interaction with the head coaches. PMID- 29337831 TI - Acute Effects of a Caffeine-Containing Supplement on Anaerobic Power and Subjective Measurements of Fatigue in Recreationally Active Men. AB - Hahn, CJ, Jagim, AR, Camic, CL, and Andre, MJ. Acute effects of a caffeine containing supplement on anaerobic power and subjective measurements of fatigue in recreationally active men. J Strength Cond Res 32(4): 1029-1035, 2018-Studies show mixed results for the effects of caffeine on performance, warranting further investigation. The purpose of this study was to examine the acute effects of a caffeine-containing supplement on anaerobic power and subjective measurements of fatigue during resisted sprinting on men. Fourteen recreationally active men (N = 14; [mean +/- SD], age: 21.0 +/- 0.7 years, height: 178.5 +/- 5.1 cm, body mass: 77.3 +/- 9.6 kg, and percent body fat: 12.6 +/- 4.8%) participated in a double blind, placebo-controlled, within-subject crossover design study. The first visit required each participant to complete 3 sets of practice sprints on a nonmotorized treadmill ranging from 10 to 20 seconds. During the second visit, participants completed 5 more practice sprints ranging from 15 to 25 seconds. During the third and fourth visits, participants ingested one serving of a caffeine-containing or placebo beverage (the opposite beverage was consumed during the fourth visit), rested for 20 minutes, and completed a dynamic warm-up before sprinting. Anaerobic power was assessed using a countermovement vertical jump and nonmotorized treadmill sprint test. Psychological variables were scored using a 5-point Likert scale. No significant (p <= 0.05) differences were observed between conditions for average (p = 0.22) or peak power (p = 0.43). Both conditions resulted in a significant increase in fatigue, although the increase was less for the caffeine condition (caffeine [INCREMENT] = 0.93 and placebo [INCREMENT] = 1.71). These findings indicated that the caffeine-containing supplement improved perceived measures of fatigue but not power indices assessed through vertical jump or nonmotorized treadmill sprinting. The consumption of a caffeine beverage may be beneficial for reducing perceived fatigue during acute anaerobic exercise, particularly when repeated sprints are used. PMID- 29337832 TI - Comparison of Step-by-Step Kinematics in Repeated 30-m Sprints in Female Soccer Players. AB - van den Tillaar, R. Comparison of step-by-step kinematics in repeated 30-m sprints in female soccer players. J Strength Cond Res 32(7): 1923-1928, 2018-The aim of this study was to compare kinematics in repeated 30-m sprints in female soccer players. Seventeen subjects performed seven 30-m sprints every 30 seconds in one session. Kinematics was measured with an infrared contact mat and laser gun, and running times with an electronic timing device. The main findings were that sprint times increased in the repeated-sprint ability test. The main changes in kinematics during the repeated-sprint ability test were increased contact time and decreased step frequency, whereas no change in step length was observed. The step velocity increased in almost each step until the 14th, which occurred around 22 m. After this, the velocity was stable until the last step, when it decreased. This increase in step velocity was mainly caused by the increased step length and decreased contact times. It was concluded that the fatigue induced in repeated 30 m sprints in female soccer players resulted in decreased step frequency and increased contact time. Using this approach in combination with a laser gun and infrared mat for 30 m makes it very easy to analyze running kinematics in repeated sprints in training. This extra information gives the athlete, coach, and sports scientist the opportunity to give more detailed feedback and helps to target these changes in kinematics better to enhance repeated-sprint performance. PMID- 29337833 TI - Effects of Plyometric and Resistance Training on Muscle Strength, Explosiveness and Neuromuscular Function in Young Adolescent Soccer Players. AB - This study examined the effect of 8-weeks of free-weight-resistance (RT) and plyometric (PLYO) training on maximal strength, explosiveness and jump performance compared with no added training (CON), in young male soccer players. Forty-one 11[FIGURE DASH]13-year-old soccer players were divided into three groups (RT, PLYO, CON). All participants completed isometric and dynamic (240 degrees /s) knee extensions pre- and post-training. Peak torque (pT), peak rate of torque development (pRTD), electromechanical-delay (EMD), rate of muscle activation (Q50), m. vastus-lateralis thickness (VLT), and jump performance were examined. pT, pRTD and jump performance significantly improved in both training groups. Training resulted in significant (p<0.05) increases in isometric pT (23.4 vs. 15.8%) and pRTD (15.0 vs. 17.6%), in RT and PLYO, respectively. During dynamic contractions, training resulted in significant increases in pT (12.4 and 10.8% in RT and PLYO, respectively), but not pRTD. Jump performance increased in both training groups (RT=10.0%, PLYO=16.2%), with only PLYO significantly different from CON. Training resulted in significant increases in VLT (RT=6.7%. PLYO=8.1%). There were no significant EMD changes. In conclusion, 8-week free weight resistance and plyometric training resulted in significant improvements in muscle strength and jump performance. Training resulted in similar muscle hypertrophy in the two training modes, with no clear differences in muscle performance. Plyometric training was more effective in improving jump performance, while free-weight resistance training was more advantageous in improving peak torque, where the stretch reflex was not involved. PMID- 29337834 TI - Manipulating Field Dimensions During Small-sided Games Impacts the Technical and Physical Profiles of Australian Footballers. AB - Brock, F, Christopher, J, Harry, B, and Carl, WT. Manipulating field dimensions during small-sided games impacts the technical and physical profiles of Australian footballers. J Strength Cond Res 32(7): 2039-2044, 2018-This study investigated the effect of manipulating field dimensions on the technical and physical profiles of Australian football (AF) players during small-sided games (SSGs). A total of 40 male players (23.9 +/- 3.5 years) participated in 3, five-a side SSGs; defined as "small" (20 * 30 m; 600 m), "medium" (30 * 40 m; 1,200 m), and "large" (40 * 50 m; 2,000 m). Notational analyses enabled the quantification of technical skill indicators, whereas physical activity profiles were measured using microtechnology, resulting in 18 criterion variables. A multivariate analysis of variance modeled the main effect of field dimension on the criterion variables. A significant main effect was observed (V = 1.032; F38, 102 = 2.863; p <= 0.05), with the "small" and "medium" SSGs generating more turnovers and ineffective handballs relative to the "large" SSG. Furthermore, the "small" SSG generated more tackles and fewer bounces compared with the "large" SSG. The "large" SSG generated a greater absolute distance, relative distance, maximum velocity, PlayerLoad, and distance >4.16 m.s compared with the "small" and "medium" SSGs. These results provide AF coaches with insights into how task constraint manipulation impacts the technical and physical profiles of players during small-sided game-play. Thus, coaches and physical performance specialists could use this information to assist with the tactical periodization of technical complexity and physical load at different phases of the AF season. PMID- 29337835 TI - Promethazine and Oral Midazolam Preanesthetic Children Medication. AB - AIMS: Several kinds of drugs have been investigated in preschool children as a preanesthetic sedation after various routes of administration for surgeries. This study aims to compare the efficacy of promethazine and oral midazolam for premedication in children aged 3 to 9 years who were scheduled for surgeries. METHODS: This is a double-blind randomized controlled study conducted on 93 patients between the age of 3 and 9 years at Loresten University of Medical Sciences Teaching Hospital, Khoramabad, Iran. The subjects were grouped into P (promethazine), M (midazolam), and C (control). About 0.3 mg/kg of oral promethazine was administered to patients in group P, 0.5 mg/kg of oral midazolam was administered to patients in group M, and 3 mL of normal saline as placebo was administered to patients in group C. Patient satisfaction, sedation and emotional score, systolic blood pressure (SBP), diastolic blood pressure, respiratory rate (RR), and heart rate (HR) were recorded. RESULTS: There was no statistically significant difference among the 3 groups. However, the period after medication, it was observed that SBP, diastolic blood pressure, RR, and HR in group C were statistically significantly higher than those in groups M and P. These 2 groups are similar in terms of SBP, RR, and HR. The emotional scores were comparable for the 2 groups. It was between 3.97 +/- 0.6 to 1.7 +/- 0.5 in group M and from 3.45 +/- 1.17 to 2.745 +/- 0.997 in group P in a Kruskal-Wallis test. CONCLUSIONS: This study shows that both test groups reduce stress at the time of anesthetic induction and separation from their parents with similar effect. Both of the anesthetics are easily administered without the necessity of an additional equipment. A shorter period to maximal sedation for midazolam is an advantage, thus, making the drug helpful, mostly in the outpatient setting. PMID- 29337836 TI - Fever as a Presenting Symptom in Children Evaluated for Ileocolic Intussusception: The Experience of a Large Tertiary Care Pediatric Hospital. AB - BACKGROUND: Intussusception is the most common cause of intestinal obstruction in young children, and delayed diagnosis may lead to bowel perforation. The objective of this study was to determine the prevalence of fever in patients with ileocolic intussusception and to determine its utility as a predictive symptom. METHODS: This was a 3-year retrospective study, at a tertiary care center, of children aged 1 month to 6 years, presenting with possible intussusception. Charts were reviewed for clinical signs and symptoms at presentation, and all diagnostic studies were retrieved. A pediatric radiologist reviewed all ultrasounds. RESULTS: A total of 488 ultrasounds were performed on suspicion of intussusception. In 30 patients with confirmed ileocolic intussusception, mean age was 27 months and all were successfully reduced by air enema. Of 118 patients with fever, 2 had confirmed intussusception, 1 with pneumonia and 1 with acute otitis media, compared with 116 febrile patients with negative ultrasounds (P < 0.05). CONCLUSIONS: Traditional teaching is that intussusception presents as intermittent colicky abdominal pain, red currant jelly stool, vomiting, and a palpable abdominal mass, but it is important to remember that this classic triad is a very late finding and this condition should be recognized before the development of these findings. The concurrence of fever can help to rule out the possibility of intussusception and prompt the health care professional to search diligently for alternative infectious etiologies but cannot eliminate the possibility, especially when other findings suggestive of intussusception are present. PMID- 29337837 TI - Accidental Rivaroxaban Intoxication in a Boy: Some Lessons in Managing New Oral Anticoagulants in Children. AB - Novel oral anticoagulants offer equivalent or improved therapeutic profiles compared with warfarin, with less risk of bleeding, no interactions with food, and no need for routine laboratory monitoring. Caution must be exercised in using these drugs in certain patient populations, for example, renal insufficiency, those receiving additional antithrombotic therapy, those with questionable compliance, children, and those with a high risk of gastrointestinal bleeding. One of the novel oral anticoagulants, rivaroxaban, is a direct Factor Xa inhibitor, used to reduce risk of stroke and systemic embolism in patients with nonvalvular atrial fibrillation, deep vein thrombosis, and pulmonary embolism. We report a child who presented abnormal coagulation tests after unintended ingestion of 4 tablets of rivaroxaban. The patient was treated with fresh frozen plasma as well as admitted to intensive care and improved several hours later. We discuss his presentation and review of the literature on this topic. PMID- 29337838 TI - Comparison Between Small and Large Bowel Intussusception in Children: The Experience of a Large Tertiary Care Pediatric Hospital. AB - BACKGROUND: Intussusception is the most common cause of intestinal obstruction in young children, and delayed diagnosis may lead to serious sequelae. The objective of this study was to determine the prevalence of ileoileal intussusception and to document and compare clinical outcomes with ileocolic intussusception. METHODS: A retrospective cohort study of children with an abdominal ultrasound that diagnosed intussusception. Clinical data and diagnostic studies were retrieved, to compare ileoileal with ileocolic intussusception. RESULTS: A total of 488 patients were evaluated with an abdominal ultrasound on suspicion of intussusception; 54 (11%) had ileoileal intussusception and 30 (6%) ileocolic intussusception. The significant features distinguishing the 2 conditions were fever, more common in patients with ileoileal intussusception, and an abdominal mass, which was papable more commonly in ileocolic intussusception. None of the ileoileal intussusception patients required surgical intervention, and all were discharged without complication. CONCLUSIONS: With recent advances in abdominal ultrasound, the diagnosis of ileoileal intussusception has become easier than before. Patients presenting with small bowel intussusception may not need any immediate intervention. The presence of fever supports the diagnosis of ileoileal intussusception. PMID- 29337839 TI - Serum Admission 25-Hydroxyvitamin D Levels and Outcomes in Initially Non-Septic Critically Ill Patients. AB - INTRODUCTION: To examine whether very low levels of 25-hydroxyvitamin D {25(OH)D} upon admission to the intensive care unit (ICU) are associated with worse outcomes. METHODS: Retrospective observational cohort study of critically ill patients treated in a multidisciplinary ICU. Two hundred twenty seven initially non-septic, critically ill patients, in whom 25-hydroxyvitamin D was measured at ICU admission. An additional group of 192 healthy subjects was also used. Patients were categorized according to their vitamin D levels at admission; the two patient groups were those with severely low 25-hydroxyvitamin D levels (<7 ng/mL, N = 101) and those with vitamin D levels >=7 ng/mL, N = 126. RESULTS: ICU admission 25-hydroxyvitamin D levels of critically ill patients were much lower than those of healthy subjects (P < 0.0001). The median time to sepsis for the two patient groups did not differ, nor did the length of ICU stay (days). Both groups exhibited similar hospital mortality rates. However, among the fraction of patients who eventually became septic (N = 145), the odds ratio (OR) for developing respiratory infections in patients with admission vitamin levels < 7 ng/mL compared with patients with admission vitamin D levels >=7 ng/mL was 5.25 {95% confidence interval (CI) 1.5-18.32, P = 0.009}. CONCLUSIONS: Initially non septic critically ill patients appear to have very low ICU admission 25 hydroxyvitamin D levels. Among critically ill patients, severely low vitamin D levels (<7 ng/mL) at ICU admission do not predict sepsis development, increased risk of in-hospital mortality, or longer stay in the ICU. However, these severely low admission vitamin D levels in patients who will eventually develop sepsis are associated with development of respiratory tract infections. PMID- 29337840 TI - Targeted Temperature Management at 33 degrees C or 36 degrees C Produces Equivalent Neuroprotective Effects in the Middle Cerebral Artery Occlusion Rat Model of Ischemic Stroke. AB - Targeted temperature management (TTM, 32 degrees C to 36 degrees C) is one of the most successful achievements in modern resuscitation medicine. It has become standard treatment for survivors of sudden cardiac arrest to minimize secondary brain damage. TTM at 36 degrees C is just as effective as TTM at 33 degrees C and is actually preferred because it reduces adverse TTM-associated effects. TTM also likely has direct neuroprotective effects in ischemic brains in danger of stroke. It remains unclear, however, whether higher temperature TTM is equally effective in protecting the brain from the effects of stroke. Here, we asked whether TTM at 36 degrees C is as effective as TTM at 33 degrees C in improving outcomes in a middle cerebral artery occlusion (MCAO) model of ischemic stroke. After dividing rats randomly into MCAO, MCAO+33 degrees C TTM, MCAO+36 degrees C TTM, and sham groups, we subjected all of them except for the sham group to MCAO for 3 h (for the behavioral tests) or 4 h (for all other biochemical analyses). We found TTM protocols at both 33 degrees C and 36 degrees C to produce comparable reductions of infarct volumes in the MCAO territory and equally attenuate the extracellular release of high mobility group box 1 in postischemic brains. Both the TTM conditions prevent the mRNA induction of a major pro-inflammatory cytokine, tissue necrosis factor-alpha, in the ischemic penumbra region. Finally, both the TTM protocols produce similar improvements in neurological outcomes in rats, as measured by a battery of behavior tests 21 h after the start of reperfusion. These data acquired in a rat MCAO model suggest TTM at 36 degrees C has excellent therapeutic potential for improving clinical outcomes for patients with acute ischemic stroke. PMID- 29337841 TI - Frequency and Severity of Acute Allergic-Like Reactions to Intravenously Administered Gadolinium-Based Contrast Media in Children. AB - OBJECTIVES: The purpose of this study is to determine the frequency and severity of acute allergic-like reactions to gadolinium-based contrast media (GBCM) in children before, during, and after the transition from gadopentetate dimeglumine to gadoterate meglumine as our primary clinical GBCM. MATERIALS AND METHODS: Institutional review board approval was obtained for this Health Insurance Portability and Accountability Act-compliant retrospective investigation. Allergic-like reactions to GBCM in pediatric patients were retrospectively assessed from January 2009 to January 2017, which included a departmental change of GBCM from gadopentetate dimeglumine to gadoterate meglumine. Allergic-like reactions were identified from departmental and hospital databases. The number of doses of GBCM was obtained from billing data. Allergic-like reaction frequencies for each GBCM were calculated and compared using the chi-squared test. RESULTS: A total of 32,365 administrations of GBCM occurred during the study period (327 for gadofosveset trisodium; 672 for gadoxetate disodium; 12,012 for gadoterate meglumine; and 19,354 for gadopentetate dimeglumine). Allergic-like reactions occurred after 21 (0.06%) administrations. Reaction frequencies were not significantly different among the GBCM (0.3% gadofosveset trisodium; 0% gadoxetate disodium, 0.06% gadoterate meglumine, 0.08% gadopentetate dimeglumine; P > 0.05). Ten (47.6%) reactions were mild, 10 (47.6%) were moderate, and 1 (4.8%) was severe. The overall reaction frequency peaked during the 6-month transition period from gadopentetate dimeglumine to gadoterate meglumine (0.20%), compared with 0.07% pretransition (P = 0.048) and 0.04% posttransition (P = 0.0095). CONCLUSION: Allergic-like reactions to GBCM in children are rare. Gadoterate meglumine has a reaction frequency that does not significantly differ from other GBCMs. During the transition from gadopentetate dimeglumine to gadoterate meglumine, an increase in the frequency of reported allergic-like reactions was observed, likely reflective of the Weber effect. PMID- 29337842 TI - Perioperative Coagulation Management in Liver Transplant Recipients. AB - We review contemporary coagulation management for patients undergoing liver transplantation. A better understanding of the complex physiologic changes that occur in patients with end-stage liver disease has resulted in significant advances in anesthetic and coagulation management. A group of internationally recognized experts have critically evaluated current approaches for coagulopathy detection and management. Strategies for blood component and factor replacement have been evaluated and recommended therapies proposed. Pharmacologic treatment and prevention of coagulopathy, management of patients receiving antiplatelet medications, and the role of transesophageal echocardiography for early detection and management of thromboses are presented. PMID- 29337843 TI - Evaluation of a Decision Tree for Efficient Antenatal Red Blood Cell Antibody Screening. AB - BACKGROUND: Hemolytic disease of the fetus and newborn due to maternal red blood cell alloimmunization can have serious consequences. Because early detection enables careful monitoring of affected pregnancies, programs to routinely screen all pregnant women have been widely adopted. Due to the low prevalence of alloimmunization, these require large investments of resources to detect a small number of cases. METHODS: We conducted a validation study of a decision tree developed in the Netherlands for determining whether to screen for alloimmunization. In a Swedish cohort, we compared the performance of that decision tree to two alternative models that used maternal characteristics, obstetric history, and transfusion history to identify high-risk women for screening or low-risk women who might be exempt from screening. The models were compared for predictive ability and potential reduction in the volume of screening. RESULTS: The decision tree applied to our study population identified 89% of alloimmunized women with a negative predictive value (NPV) of 99.7% by screening 62% of the population. To achieve the same NPV, our model exempting low risk women captured 90% of alloimmunizations by screening 63% of the population. In contrast, the model identifying high-risk women for screening while maintaining a similar NPV captured 63% of alloimmunized women by screening 20% of the population. CONCLUSIONS: We validated that an existing decision tree for selecting women for maternal screening performed well in our population, identifying a large proportion of women who became alloimmunized, with a predictive performance almost identical to that of a more elaborate model. PMID- 29337844 TI - Melanoma of the Skin in the Danish Cancer Registry and the Danish Melanoma Database: A Validation Study. AB - BACKGROUND: The nationwide Danish Cancer Registry and the Danish Melanoma Database both record data on melanoma for purposes of monitoring, quality assurance, and research. However, the data quality of the Cancer Registry and the Melanoma Database has not been formally evaluated. METHODS: We estimated the positive predictive value (PPV) of melanoma diagnosis for random samples of 200 patients from the Cancer Registry (n = 200) and the Melanoma Database (n = 200) during 2004-2014, using the Danish Pathology Registry as "gold standard" reference. We further validated tumor characteristics in the Cancer Registry and the Melanoma Database. Additionally, we estimated the PPV of in situ melanoma diagnoses in the Melanoma Database, and the sensitivity of melanoma diagnoses in 2004-2014. RESULTS: The PPVs of melanoma in the Cancer Registry and the Melanoma Database were 97% (95% CI = 94, 99) and 100%. The sensitivity was 90% in the Cancer Registry and 77% in the Melanoma Database. The PPV of in situ melanomas in the Melanoma Database was 97% and the sensitivity was 56%. In the Melanoma Database, we observed PPVs of ulceration of 75% and Breslow thickness of 96%. The PPV of histologic subtypes varied between 87% and 100% in the Cancer Registry and 93% and 100% in the Melanoma Database. The PPVs for anatomical localization were 83%-95% in the Cancer Registry and 93%-100% in the Melanoma Database. CONCLUSIONS: The data quality in both the Cancer Registry and the Melanoma Database is high, supporting their use in epidemiologic studies. PMID- 29337845 TI - Statistical Power for Trend-in-trend Design. PMID- 29337846 TI - 25-Hydroxyvitamin D and Long Menstrual Cycles in a Prospective Cohort Study. AB - BACKGROUND: Vitamin D insufficiency is associated with subfertility and prolonged estrus cycles in animals, but humans have not been well studied. METHODS: A prospective time-to-pregnancy study, Time to Conceive (2010-2015), collected up to 4 months of daily diary data. Participants were healthy, late reproductive aged women in North Carolina who were attempting pregnancy. We examined menstrual cycle length as a continuous variable and in categories: long (35+ days) and short (<=25 days). Follicular phase length and luteal phase length were categorized as long (18+ days) or short (<=10 days). We estimated associations between those lengths and serum 25-hydroxyvitamin D (25[OH]D) using linear mixed models and marginal models. RESULTS: There were 1,278 menstrual cycles from 446 women of whom 5% were vitamin D deficient (25[OH]D, <20 ng/ml), 69% were between 20 and 39 ng/ml, and 26% were 40 ng/ml or higher. There was a dose-response association between vitamin D levels and cycle length. Compared with the highest 25(OH)D level (>=40 ng/ml), 25(OH)D deficiency was associated with almost three times the odds of long cycles (adjusted odds ratio [aOR] = 2.8 [95% confidence interval (CI) = 1.0, 7.5]). The aOR was 1.9 (1.1, 3.5) for 20 to <30 ng/ml. The probability of a long follicular phase and the probability of a short luteal phase both increased with decreasing 25(OH)D. CONCLUSIONS: Lower levels of 25(OH)D are associated with longer follicular phase and an overall longer menstrual cycle. Our results are consistent with other evidence supporting vitamin D's role in the reproductive axis, which may have broader implications for reproductive success. PMID- 29337847 TI - HIV Care Continuum Disparities Among Black Bisexual Men and the Mediating Effect of Psychosocial Comorbidities. AB - INTRODUCTION: Differences across the HIV care continuum between men who have sex with men and women (MSMW) and men who have sex with men only (MSMO) are emerging in recent literature but have not been comprehensively documented among black MSM. Although MSMW have lower HIV prevalence than MSMO, they are more likely to be HIV-positive unaware and be virally unsuppressed. Explanatory factors for these differences have not previously been assessed. METHODS: Between 2014 and 2016, we surveyed sexually active black MSM 18 years or older at Black Gay Pride events in 6 U.S. cities (n = 3881), 1229 of whom either self-reported HIV positive status or tested HIV-positive onsite. We compared HIV-positive MSMW (n = 196) with HIV-positive MSMO (n = 1033) by HIV-positive unaware status, HIV care uptake, and viral load suppression. We conducted multivariable logistic regressions and built a structural equation model assessing mediating effects of psychosocial comorbidities (violence victimization, depression, and polydrug use) on the relationship between MSMW status and unsuppressed virus. RESULTS: MSMW were more likely than MSMO to be HIV-positive unaware [adjusted odds ratio (aOR) = 2.17; 95% confidence interval (CI): 1.58 to 3.00]. Among those who were HIV positive aware (n = 720), MSMW were more likely to report never receiving HIV care (aOR = 2.74; 95% CI: 1.05 to 7.16) and to report detectable viral loads (aOR = 2.34; 95% CI: 1.31 to 4.19). Psychosocial comorbidities significantly mediated (P = 0.01) the relationship between MSMW status and unsuppressed virus. DISCUSSION: Black MSMW were less likely than black MSMO to uptake biomedical care and secondary prevention. Biobehavioral intervention development specific to HIV positive black MSMW will be most successful if psychosocial comorbidities are also addressed. PMID- 29337848 TI - Transmission Networks of HCV Genotype 1a Enriched With Pre-existing Polymorphism Q80K Among HIV-Infected Patients With Acute Hepatitis C in Poland. AB - BACKGROUND: Hepatitis C virus (HCV) resistance-associated variants (RAVs) have been shown to adversely affect treatment response of direct-acting antivirals. Identifying pre-existing RAVs and transmission networks among HIV/HCV genotype 1 (G1)-infected patients from Poland will assist in shaping surveillance strategies for HCV. METHODS: NS3 and NS5A sequences were obtained from samples of 112 direct acting antiviral-naive G1 patients (45 G1a and 67 G1b), of which 74 were chronically infected and 38 were diagnosed with acute hepatitis C (AHC). RAVs were identified using geno2pheno, and 98 concatenated NS3/NS5A alignments were constructed to identify transmission clusters using a maximum likelihood approach. RESULTS: G1a was notably more prevalent compared with G1b among men having-sex-with-men (MSM) (60.0% vs. 31.3%, P = 0.004), AHC cases (46.7% vs. 25.4%, P = 0.019), and patients diagnosed with syphilis (52.2% vs. 24.5%, P = 0.009). The overall NS3/NS5A RAVs frequency was 14.3% with variants occurring more often in G1a compared with G1b (27.5% vs. 5.2%, P = 0.005), mostly for NS3 due to the high prevalence of polymorphism Q80K. NS5A RAVs were only found in 2.9% of sequences. Significant clustering was observed for 73.5% of the Polish sequences, however, more common in G1a MSM compared with G1b (50.0% vs. 25.9%, P = 0.02). The identified clusters contained sequences originating from up to 5 Polish cities, located within a mean distance of 370 km. CONCLUSIONS: Close clustering of Polish strains suggests the presence of compartmentalized epidemics of MSM that fuel the spread of G1a variants. Particularly patients with AHC form a national transmission network, including clusters enriched with the NS3 Q80K polymorphism. PMID- 29337849 TI - Vitamin E as a Treatment for Nonalcoholic Fatty Liver Disease: Reality or Myth? AB - Obesity is one of the major epidemics of this millennium, and its incidence is growing worldwide. Following the epidemics of obesity, nonalcoholic fatty liver disease (NAFLD) has become a disease of increasing prevalence and a leading cause of morbidity and mortality closely related to cardiovascular disease, malignancies, and cirrhosis. It is believed that oxidative stress is a main player in the development and progression of NAFLD. Currently, a pharmacological approach has become necessary in NAFLD because of a failure to modify lifestyle and dietary habits in most patients. Vitamin E is a potent antioxidant that has been shown to reduce oxidative stress in NAFLD. This review summarizes the biological activities of vitamin E, with a primary focus on its therapeutic efficacy in NAFLD. PMID- 29337850 TI - Rosuvastatin Improves Vaspin Serum Levels in Obese Patients with Acute Coronary Syndrome. AB - : Adipose tissue-derived serine protease inhibitor (vaspin), which has endocrine and local roles in atherosclerosis growth, is also synthesized by adipose tissue; it was found that vaspin was negatively correlated with blood pressure in obese patients, while vaspin levels were decreased in endothelial dysfunction. The aim of the present study was to determine rosuvastatin modulation effects on serum vaspin levels in acute coronary syndrome (ACS) with class I obesity. A total number of seventy patients with acute coronary syndrome previously and currently treated with rosuvastatin was compared to 40 patients with IHD not treated by rosuvastatin as a control. Vaspin serum levels were higher in rosuvastatin treated patients with acute coronary syndrome compared to the patients with acute coronary syndrome not treated by rosuvastatin, p < 0.01. Additionally, in the rosuvastatin-treated group, patients with STEMI showed higher vaspin serum levels compared to NSTEMI p < 0.01. CONCLUSION: Rosuvastatin significantly increases vaspin serum levels in acute coronary syndrome. PMID- 29337851 TI - Transcriptional Regulation by CpG Sites Methylation in the Core Promoter Region of the Bovine SIX1 Gene: Roles of Histone H4 and E2F2. AB - DNA methylation is a major epigenetic modification of the genome and has an essential role in muscle development. The SIX1 gene is thought to play a principal role in mediating skeletal muscle development. In the present study, we determined that bovine SIX1 expression levels were significantly higher in the fetal bovine group (FB) and in undifferentiated Qinchuan cattle muscle cells (QCMCs) than in the adult bovine group (AB) and in differentiated QCMCs. Moreover, a bisulfite sequencing polymerase chain reaction (BSP) analysis of DNA methylation levels showed that three CpG sites in the core promoter region (-216/ 28) of the bovine SIX1 gene exhibited significantly higher DNA methylation levels in the AB and differentiated QCMCs groups. In addition, we found that DNA methylation of SIX1 core promoter in vitro obviously influences the promoter activities. An electrophoretic mobility shift assay (EMSA) and chromatin immunoprecipitation (ChIP) assay, in combination with site-directed mutation and siRNA interference, demonstrated that histone H4 and E2F2 bind to the -216/-28 region and play important roles in SIX1 methylation regulation during development. The results of this study provide the foundation for a better understanding of the regulation of bovine SIX1 expression via methylation and muscle developmental in beef cattle. PMID- 29337852 TI - Reference Gene Selection for Quantitative Real-Time Reverse-Transcriptase PCR in Annual Ryegrass (Lolium multiflorum) Subjected to Various Abiotic Stresses. AB - To select the most stable reference genes in annual ryegrass (Lolium multiflorum), we studied annual ryegrass leaf tissues exposed to various abiotic stresses by qRT-PCR and selected 11 candidate reference genes, i.e., 18S rRNA, E2, GAPDH, eIF4A, HIS3, SAMDC, TBP-1, Unigene71, Unigene77, Unigene755, and Unigene14912. We then used GeNorm, NormFinder, and BestKeeper to analyze the expression stability of these 11 genes, and used RefFinder to comprehensively rank genes according to stability. Under different stress conditions, the most suitable reference genes for studies of leaf tissues of annual ryegrass were different. The expression of the eIF4A gene was the most stable under drought stress. Under saline-alkali stress, Unigene14912 has the highest expression stability. Under acidic aluminum stress, SAMDC expression stability was highest. Under heavy metal stress, Unigene71 expression had the highest stability. According to the software analyses, Unigene14912, HIS3, and eIF4A were the most suitable for analyses of abiotic stress in tissues of annual ryegrass. GAPDH was the least suitable reference gene. In conclusion, selecting appropriate reference genes under abiotic stress not only improves the accuracy of annual ryegrass gene expression analyses, but also provides a theoretical reference for the development of reference genes in plants of the genus Lolium. PMID- 29337853 TI - Specific Molecular Signatures for Type II Crustins in Penaeid Shrimp Uncovered by the Identification of Crustin-Like Antimicrobial Peptides in Litopenaeus vannamei. AB - Crustins form a large family of antimicrobial peptides (AMPs) in crustaceans composed of four sub-groups (Types I-IV). Type II crustins (Type IIa or "Crustins" and Type IIb or "Crustin-like") possess a typical hydrophobic N terminal region and are by far the most representative sub-group found in penaeid shrimp. To gain insight into the molecular diversity of Type II crustins in penaeids, we identified and characterized a Type IIb crustin in Litopenaeus vannamei (Crustin-like Lv) and compared Type II crustins at both molecular and transcriptional levels. Although L. vannamei Type II crustins (Crustin Lv and Crustin-like Lv) are encoded by separate genes, they showed a similar tissue distribution (hemocytes and gills) and transcriptional response to the shrimp pathogens Vibrio harveyi and White spot syndrome virus (WSSV). As Crustin Lv, Crustin-like Lv transcripts were found to be present early in development, suggesting a maternal contribution to shrimp progeny. Altogether, our in silico and transcriptional data allowed to conclude that (1) each sub-type displays a specific amino acid signature at the C-terminal end holding both the cysteine rich region and the whey acidic protein (WAP) domain, and that (2) shrimp Type II crustins evolved from a common ancestral gene that conserved a similar pattern of transcriptional regulation. PMID- 29337854 TI - Announcing the 2018 Medicines Travel Award for PostDocs. AB - For the Medicines Travel Award 2018, we received a total of 41 applications from all over the world, of a wery high quality[...]. PMID- 29337856 TI - Interaction between Hepatitis B Virus and Toll-Like Receptors: Current Status and Potential Therapeutic Use for Chronic Hepatitis B. AB - Immune defense against infection with the hepatitis B virus (HBV) is complex and involves both host innate and adaptive immune systems. It is well accepted that the development of sufficient HBV-specific T cell and B cell responses are required for controlling an HBV infection. However, the contribution of innate immunity to removing HBV has been explored in recent years. Toll-like receptors (TLRs) are recognized as the first line of antiviral immunity because they initiate intracellular signaling pathways to induce antiviral mediators such as interferons (IFNs) and other cytokines. Recent studies show that the activation of TLR-mediated signaling pathways results in a suppression of HBV replication in vitro and in vivo. However, HBV has also evolved strategies to counter TLR responses including the suppression of TLR expression and the blockage of downstream signaling pathways. Antiviral treatment in chronic HBV-infected patients leads to an upregulation of TLR expression and the restoration of its innate antiviral functions. Thus, TLR activation may serve as an additional immunotherapeutic option for treating chronic HBV infection in combination with antiviral treatment. PMID- 29337858 TI - Investigation on the Effect of a Pre-Center Drill Hole and Tool Material on Thrust Force, Surface Roughness, and Cylindricity in the Drilling of Al7075. AB - Drilling is one of the most useful metal cutting processes and is used in various applications, such as aerospace, electronics, and automotive. In traditional drilling methods, the thrust force, torque, tolerance, and tribology (surface roughness) are related to the cutting condition and tool geometry. In this paper, the effects of a pre-center drill hole, tool material, and drilling strategy (including continuous and non-continuous feed) on thrust force, surface roughness, and dimensional accuracy (cylindricity) have been investigated. The results show that using pre-center drill holes leads to a reduction of the engagement force and an improvement in the surface quality and cylindricity. Non continuous drilling reduces the average thrust force and cylindricity value, and High Speed Steels HSS-Mo (high steel speed + 5-8% Mo) reduces the maximum quantity of cutting forces. Moreover, cylindricity is directly related to cutting temperature and is improved by using a non-continuous drilling strategy. PMID- 29337857 TI - Low Molecular Weight Chitosan-Insulin Complexes Solubilized in a Mixture of Self Assembled Labrosol and Plurol Oleaque and Their Glucose Reduction Activity in Rats. AB - Oral insulin delivery that better mimics physiological pathways is a necessity as it ensures patient comfort and compliance. A system which is based on a vehicle of nano order where positively charged chitosan interacts with negatively charged insulin and forms a polyelectrolyte complex (PEC) solubilizate, which is then solubilized into an oily phase of oleic acid, labrasol, and plurol oleaque protects insulin against enzymatic gastrointestinal reduction. The use of an anionic fatty acid in the oily phase, such as oleic acid, is thought to allow an interaction with cationic chitosan, hence reducing particle size. Formulations were assessed based on their hypoglycaemic capacities in diabetic rats as compared to conventional subcutaneous dosage forms. 50 IU/kg oral insulin strength could only induce blood glucose reduction equivalent to that of 5 IU/kg (1 International unit = 0.0347 mg of human insulin). Parameters that influence the pharmacological availability were evaluated. A preliminary investigation of the mechanism of absorption suggests the involvement of the lymphatic route. PMID- 29337859 TI - Effects of Pharmacists' Interventions on Inappropriate Drug Use and Drug-Related Readmissions in People with Dementia-A Secondary Analysis of a Randomized Controlled Trial. AB - Age-associated physiological changes and extensive drug treatment including use of potentially inappropriate medications (PIMs) pose a significant risk of drug drug interactions and adverse drug events among elderly people with dementia. This study aimed at analysing the effects of clinical pharmacists' interventions on use of PIMs, risk of emergency department visits, and time to institutionalization. Furthermore, a descriptive analysis was conducted of circumstances associated with drug-related readmissions. This is a secondary analysis of data from a randomized controlled intervention study conducted in two hospitals in Northern Sweden. The study included patients (n = 460) 65 years or older with dementia or cognitive impairment. The intervention consisted of comprehensive medication reviews conducted by clinical pharmacists as part of a healthcare team. There was a larger decrease in PIMs in the intervention group compared with the control group (p = 0.011). No significant difference was found in time to first all-cause emergency department visits (HR = 0.994, 95% CI = 0.755-1.307 p = 0.963, simple Cox regression) or time to institutionalization (HR = 0.761, 95% CI = 0.409-1.416 p = 0.389, simple Cox regression) within 180 days. Common reasons for drug-related readmissions were negative effects of sedatives, opioids, antidepressants, and anticholinergic agents, resulting in confusion, falling, and sedation. Drug-related readmissions were associated with living at home, heart failure, and diabetes. Pharmacist-provided interventions were able to reduce PIMs among elderly people with dementia and cognitive impairment. PMID- 29337860 TI - Reporting and Handling of Indeterminate Bone Scan Results in the Staging of Prostate Cancer: A Systematic Review. AB - Bone scintigraphy is key in imaging skeletal metastases in newly diagnosed prostate cancer. Unfortunately, a notable proportion of scans are not readily classified as positive or negative but deemed indeterminate. The extent of reporting of indeterminate bone scans and how such scans are handled in clinical trials are not known. A systematic review was conducted using electronic databases up to October 2016. The main outcome of interest was the reporting of indeterminate bone scans, analyses of how such scans were managed, and exploratory analyses of the association of study characteristics and the reporting of indeterminate bone scan results. Seventy-four eligible clinical trials were identified. The trials were mostly retrospective (85%), observational (95%), large trials (median 195 patients) from five continents published over four decades. The majority of studies had university affiliation (72%), and an author with imaging background (685). Forty-five studies (61%) reported an indeterminate option for the bone scan and 23 studies reported the proportion of indeterminate scans (median 11.4%). Most trials (44/45, 98%) reported how to handle indeterminate scans. Most trials (n = 39) used add-on supplementary imaging, follow-up bone scans, or both. Exploratory analyses showed a significant association of reporting of indeterminate results and number of patients in the study (p = 0.024) but failed to reach statistical significance with other variables tested. Indeterminate bone scan for staging of prostate cancer was insufficiently reported in clinical trials. In the case of indeterminate scans, most studies provided adequate measures to obtain the final status of the patients. PMID- 29337861 TI - Protein from Meat or Vegetable Sources in Meals Matched for Fiber Content has Similar Effects on Subjective Appetite Sensations and Energy Intake-A Randomized Acute Cross-Over Meal Test Study. AB - Higher-protein meals decrease hunger and increase satiety compared to lower protein meals. However, no consensus exists about the different effects of animal and vegetable proteins on appetite. We investigated how a meal based on vegetable protein (fava beans/split peas) affected ad libitum energy intake and appetite sensations, compared to macronutrient-balanced, iso-caloric meals based on animal protein (veal/pork or eggs). Thirty-five healthy men were enrolled in this acute cross-over study. On each test day, participants were presented with one of four test meals (~3550 kilojoules (kJ) 19% of energy from protein), based on fava beans/split peas (28.5 g fiber), pork/veal or eggs supplemented with pea fiber to control for fiber content (28.5 g fiber), or eggs without supplementation of fiber (6.0 g fiber). Subjective appetite sensations were recorded at baseline and every half hour until the ad libitum meal three hours later. There were no differences in ad libitum energy intake across test meals (p > 0.05). Further, no differences were found across meals for hunger, satiety, fullness, prospective food consumption, or composite appetite score (all p > 0.05). Iso-caloric, macronutrient-balanced, fiber-matched meals based on vegetable protein (fava beans/split peas) or animal protein (veal/pork or eggs) had similar effects on ad libitum energy intake and appetite sensations. PMID- 29337862 TI - Therapeutic Management of Pseudomonas aeruginosa Bloodstream Infection Non Susceptible to Carbapenems but Susceptible to "Old" Cephalosporins and/or to Penicillins. AB - It is unknown as to whether other beta-lactams can be used for bloodstream infections (BSI) resulting from Pseudomonas aeruginosa (PA) which are non susceptible to one or more carbapenem. We conducted a retrospective cohort study at the Assaf Harofeh Medical Center (AHMC) from January 2010 to August 2014. Adult patients with PA-BSI non-susceptible to a group 2 carbapenem but susceptible to ceftazidime or piperacillin (with or without tazobactam), were enrolled. We compared the outcomes of patients who received an appropriate beta lactam antibiotic ("cases") to those who received an appropriate non-beta-lactam antibiotic ("controls"). Whole genome sequencing was performed for one of the isolates. Twenty-six patients with PA-BSI met inclusion criteria: 18 received a beta-lactam and 8 a non-beta-lactam (three a fluoroquinolone, two colistin, one a fluoroquinolone and an aminoglycoside, one a fluoroquinolone and colistin, and one colistin and an aminoglycoside). All clinical outcomes were similar between the groups. There were large variations in the phenotypic susceptibilities of the strains. A detailed molecular investigation of one isolate revealed a strain that belonged to MLST-137, with the presence of multiple efflux pumps, OXA-50, and a chromosomally mediated Pseudomonas-derived cephalosporinase (PDC). The oprD gene was intact. Non-carbapenem-beta-lactams may still be effective alternatives for short duration therapy (up to 14 days) for BSI caused by a carbapenem non susceptible (but susceptible to ceftazidime, piperacillin, and/or piperacillin tazobactam) PA strain. This observation requires further confirmatory analyses. Future molecular investigations should be performed, in order to further analyze additional potential mechanisms for this prevalent phenotype. PMID- 29337864 TI - Effects of Chitosan-PVA and Cu Nanoparticles on the Growth and Antioxidant Capacity of Tomato under Saline Stress. AB - Chitosan is a natural polymer, which has been used in agriculture to stimulate crop growth. Furthermore, it has been used for the encapsulation of nanoparticles in order to obtain controlled release. In this work, the effect of chitosan-PVA and Cu nanoparticles (Cu NPs) absorbed on chitosan-PVA on growth, antioxidant capacity, mineral content, and saline stress in tomato plants was evaluated. The results show that treatments with chitosan-PVA increased tomato growth. Furthermore, chitosan-PVA increased the content of chlorophylls a and b, total chlorophylls, carotenoids, and superoxide dismutase. When chitosan-PVA was mixed with Cu NPs, the mechanism of enzymatic defense of tomato plants was activated. The chitosan-PVA and chitosan-PVA + Cu NPs increased the content of vitamin C and lycopene, respectively. The application of chitosan-PVA and Cu NPs might induce mechanisms of tolerance to salinity. PMID- 29337863 TI - Dairy-Related Dietary Patterns, Dietary Calcium, Body Weight and Composition: A Study of Obesity in Polish Mothers and Daughters, the MODAF Project. AB - The role of the family environment in regards to dairy products and dietary calcium in the context of obesity is not fully understood. The aim of the study was to investigate the association among dairy-related dietary patterns (DDPs), dietary calcium, body weight and composition in mothers and daughters. Data were collected through a cross-sectional survey within the MODAF Project. A total sample of 712 pairs of mothers (<60 years) and daughters (12-21 years) was studied. This study included 691 pairs. A semi-quantitative food frequency questionnaire (ADOS-Ca) was used to collect dietary data. Waist circumference (WC), body fat, waist-to-height ratio (WHtR) and body mass index (BMI) were determined. Previously derived DDPs were used-three in mothers and three in daughters. In mothers, two of the DDPs were characterized by higher consumption of various dairy products with suboptimal calcium content (means: 703 or 796 mg/day) which decreased the chance of: z-WC > 1 standard deviation (SD), WC > 80 cm, body fat > 32%, WHtR > 0.5, BMI = 25-29.9 kg/m2 or BMI >= 30 kg/m2 by 44-67% when compared to low-dairy low-calcium DDP (288 mg/day). In mothers per 100 mg/day of dietary calcium, the chance of z-WC > 1SD, WC > 80 cm, z-WHtR > 1SD, WHtR > 0.5 cm, BMI = 25 to 29.9 kg/m2 or BMI >= 30 kg/m2 decreased by 5-9%. In correspondence analysis, a clear association was found between mothers' and daughters' low-dairy low-calcium DDPs and upper categories of z-WC (>1 SDs). This study reinforces evidence of the similarity between mothers and daughters in dairy-related dietary patterns and provides a new insight on the adverse relation between low-dairy low-calcium dietary patterns and obesity. It was found that diets containing various dairy products with suboptimal dietary calcium content may be recommended in obesity prevention. PMID- 29337865 TI - Pharmacokinetics and Drug Metabolism in Canada: The Current Landscape-A Summary of This Indispensable Special Issue. AB - Canadian Pharmaceutical Scientists have a rich history of groundbreaking research in pharmacokinetics and drug metabolism undertaken primarily throughout its Pharmacy Faculties and within the Pharmaceutical and Biotechnology industry.[...]. PMID- 29337867 TI - Tensile and Creep Testing of Sanicro 25 Using Miniature Specimens. AB - Tensile and creep properties of new austenitic steel Sanicro 25 at room temperature and operating temperature 700 degrees C were investigated by testing on miniature specimens. The results were correlated with testing on conventional specimens. Very good agreement of results was obtained, namely in yield and ultimate strength, as well as short-term creep properties. Although the creep rupture time was found to be systematically shorter and creep ductility lower in the miniature test, the minimum creep rates were comparable. The analysis of the fracture surfaces revealed similar ductile fracture morphology for both specimen geometries. One exception was found in a small area near the miniature specimen edge that was cut by electro discharge machining, where an influence of the steel fracture behavior at elevated temperature was identified. PMID- 29337868 TI - Bacteriophage GC1, a Novel Tectivirus Infecting Gluconobacter Cerinus, an Acetic Acid Bacterium Associated with Wine-Making. AB - The Gluconobacter phage GC1 is a novel member of the Tectiviridae family isolated from a juice sample collected during dry white wine making. The bacteriophage infects Gluconobacter cerinus, an acetic acid bacterium which represents a spoilage microorganism during wine making, mainly because it is able to produce ethyl alcohol and transform it into acetic acid. Transmission electron microscopy revealed tail-less icosahedral particles with a diameter of ~78 nm. The linear double-stranded DNA genome of GC1 (16,523 base pairs) contains terminal inverted repeats and carries 36 open reading frames, only a handful of which could be functionally annotated. These encode for the key proteins involved in DNA replication (protein-primed family B DNA polymerase) as well as in virion structure and assembly (major capsid protein, genome packaging ATPase (adenosine triphosphatase) and several minor capsid proteins). GC1 is the first tectivirus infecting an alphaproteobacterial host and is thus far the only temperate tectivirus of gram-negative bacteria. Based on distinctive sequence and life style features, we propose that GC1 represents a new genus within the Tectiviridae, which we tentatively named "Gammatectivirus". Furthermore, GC1 helps to bridge the gap in the sequence space between alphatectiviruses and betatectiviruses. PMID- 29337866 TI - CRISPR-Cas Targeting of Host Genes as an Antiviral Strategy. AB - Currently, a new gene editing tool-the Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) associated (Cas) system-is becoming a promising approach for genetic manipulation at the genomic level. This simple method, originating from the adaptive immune defense system in prokaryotes, has been developed and applied to antiviral research in humans. Based on the characteristics of virus-host interactions and the basic rules of nucleic acid cleavage or gene activation of the CRISPR-Cas system, it can be used to target both the virus genome and host factors to clear viral reservoirs and prohibit virus infection or replication. Here, we summarize recent progress of the CRISPR Cas technology in editing host genes as an antiviral strategy. PMID- 29337869 TI - Aquaporin Expression and Water Transport Pathways inside Leaves Are Affected by Nitrogen Supply through Transpiration in Rice Plants. AB - The photosynthetic rate increases under high-N supply, resulting in a large CO2 transport conductance in mesophyll cells. It is less known that water movement is affected by nitrogen supply in leaves. This study investigated whether the expression of aquaporin and water transport were affected by low-N (0.7 mM) and high-N (7 mM) concentrations in the hydroponic culture of four rice varieties: (1) Shanyou 63 (SY63), a hybrid variant of the indica species; (2) Yangdao 6 (YD6), a variant of indica species; (3) Zhendao 11 (ZD11), a hybrid variant of japonica species; and (4) Jiuyou 418 (JY418), another hybrid of the japonica species. Both the photosynthetic and transpiration rate were increased by the high-N supply in the four varieties. The expressions of aquaporins, plasma membrane intrinsic proteins (PIPs), and tonoplast membrane intrinsic protein (TIP) were higher in high-N than low-N leaves, except in SY63. Leaf hydraulic conductance (Kleaf) was lower in high-N than low-N leaves in SY63, while Kleaf increased under high-N supply in the YD6 variant. Negative correlations were observed between the expression of aquaporin and the transpiration rate in different varieties. Moreover, there was a significant negative correlation between transpiration rate and intercellular air space. In conclusion, the change in expression of aquaporins could affect Kleaf and transpiration. A feedback effect of transpiration would regulate aquaporin expression. The present results imply a coordination of gas exchange with leaf hydraulic conductance. PMID- 29337870 TI - Glioblastoma under Siege: An Overview of Current Therapeutic Strategies. AB - Glioblastoma is known to be one of the most lethal and untreatable human tumors. Surgery and radiotherapy in combination with classical alkylating agents such as temozolomide offer little hope to escape a poor prognosis. For these reasons, enormous efforts are currently devoted to refine in vivo and in vitro models with the specific goal of finding new molecular aberrant pathways, suitable to be targeted by a variety of therapeutic approaches, including novel pharmaceutical formulations and immunotherapy strategies. In this review, we will first discuss current molecular classification based on genomic and transcriptomic criteria. Also, the state of the art in current clinical practice for glioblastoma therapy in the light of the recent molecular classification, together with ongoing phases II and III clinical trials, will be described. Finally, new pharmaceutical formulations such as nanoparticles and viral vectors, together with new strategies entailing the use of monoclonal antibodies, vaccines and immunotherapy agents, such as checkpoint inhibitors, will also be discussed. PMID- 29337871 TI - Influence of Kartogenin on Chondrogenic Differentiation of Human Bone Marrow Derived MSCs in 2D Culture and in Co-Cultivation with OA Osteochondral Explant. AB - Articular cartilage has limited capacity for natural regeneration and repair. In the present study, we evaluated kartogenin (KGN), a bioactive small heterocyclic molecule, for its effect on in vitro proliferation and chondrogenic differentiation of human bone marrow-derived mesenchymal stromal cells (hBMSCs) in monolayer culture and in co-culture models in vitro. OA osteochondral cylinders and hBMSCs were collected during total knee replacement. The effect of KGN on hBMSCs during 21 days of culture was monitored by real-time proliferation assay, immunofluorescence staining, histological assay, scanning electron microscopy (SEM) (imaging and multiplex enzyme-linked immunosorbent assay) ELISA assay. The rate of proliferation of hBMSCs was significantly increased by treatment with 10 uM KGN during nine days of culture. Histological and SEM analyses showed the ability of hBMSCs in the presence of KGN to colonize the surface of OA cartilage and to produce glycosaminoglycans and proteoglycans after 21 days of co-culture. KGN treated hBMSCs secreted higher concentrations of TIMPs and the secretion of pro-inflammatory molecules (MMP 13, TNF-alpha) were significantly suppressed in comparison with control without hBMSCs. Our preliminary results support the concept that 10 uM KGN enhances proliferation and chondrogenic differentiation of hBMSCs and suggest that KGN is a potential promoter for cell-based therapeutic application for cartilage regeneration. PMID- 29337872 TI - Mutation Analysis in Cultured Cells of Transgenic Rodents. AB - To comply with guiding principles for the ethical use of animals for experimental research, the field of mutation research has witnessed a shift of interest from large-scale in vivo animal experiments to small-sized in vitro studies. Mutation assays in cultured cells of transgenic rodents constitute, in many ways, viable alternatives to in vivo mutagenicity experiments in the corresponding animals. A variety of transgenic rodent cell culture models and mutation detection systems have been developed for mutagenicity testing of carcinogens. Of these, transgenic Big Blue(r) (Stratagene Corp., La Jolla, CA, USA, acquired by Agilent Technologies Inc., Santa Clara, CA, USA, BioReliance/Sigma-Aldrich Corp., Darmstadt, Germany) mouse embryonic fibroblasts and the lambda Select cII Mutation Detection System have been used by many research groups to investigate the mutagenic effects of a wide range of chemical and/or physical carcinogens. Here, we review techniques and principles involved in preparation and culturing of Big Blue(r) mouse embryonic fibroblasts, treatment in vitro with chemical/physical agent(s) of interest, determination of the cII mutant frequency by the lambda Select cII assay and establishment of the mutation spectrum by DNA sequencing. We describe various approaches for data analysis and interpretation of the results. Furthermore, we highlight representative studies in which the Big Blue(r) mouse cell culture model and the lambda Select cII assay have been used for mutagenicity testing of diverse carcinogens. We delineate the advantages of this approach and discuss its limitations, while underscoring auxiliary methods, where applicable. PMID- 29337873 TI - Two Novel Proline-Containing Catechin Glucoside from Water-Soluble Extract of Codonopsis pilosula. AB - Choushenflavonoids A (1) and B (2), two unusual proline-containing catechin glucosides, were isolated from the roots of Codonopsis pilosula cultivated in a high-altitude location of Yunnan province. Their structures were determined by spectroscopic data and chemical methods. Specifically, the absolute configuration of glucose residue in 1 and 2 was assigned by acid hydrolysis followed by derivatization and gas chromatography (GC) analysis. In addition, biological evaluation of 1 and 2 against Sirtuin 1 (SIRT1) was carried out. PMID- 29337874 TI - Angular Molecular-Electronic Sensor with Negative Magnetohydrodynamic Feedback. AB - A high-precision angular accelerometer based on molecular-electronic transfer (MET) technology with a high dynamic range and a low level of self-noise has been developed. Its difference from the analogues is in the use of liquid (electrolyte) as the inertial mass and the use of negative feedback based on the magnetohydrodynamic effect. This article reports on the development of the angular molecular-electronic accelerometer with a magnetohydrodynamic cell for the creation of negative feedback, and the optimization of electronics for the creation of a feedback signal. The main characteristics of the angular accelerometer, such as amplitude-frequency characteristics, self-noise and Allan variance were experimentally measured. The obtained output parameters were compared to its analogues and it showed perspectives for further development in this field. PMID- 29337877 TI - Virtual Environments for Visualizing Structural Health Monitoring Sensor Networks, Data, and Metadata. AB - Visualization of sensor networks, data, and metadata is becoming one of the most pivotal aspects of the structural health monitoring (SHM) process. Without the ability to communicate efficiently and effectively between disparate groups working on a project, an SHM system can be underused, misunderstood, or even abandoned. For this reason, this work seeks to evaluate visualization techniques in the field, identify flaws in current practices, and devise a new method for visualizing and accessing SHM data and metadata in 3D. More precisely, the work presented here reflects a method and digital workflow for integrating SHM sensor networks, data, and metadata into a virtual reality environment by combining spherical imaging and informational modeling. Both intuitive and interactive, this method fosters communication on a project enabling diverse practitioners of SHM to efficiently consult and use the sensor networks, data, and metadata. The method is presented through its implementation on a case study, Streicker Bridge at Princeton University campus. To illustrate the efficiency of the new method, the time and data file size were compared to other potential methods used for visualizing and accessing SHM sensor networks, data, and metadata in 3D. Additionally, feedback from civil engineering students familiar with SHM is used for validation. Recommendations on how different groups working together on an SHM project can create SHM virtual environment and convey data to proper audiences, are also included. PMID- 29337876 TI - Microenvironment Stimuli HGF and Hypoxia Differently Affected miR-125b and Ets-1 Function with Opposite Effects on the Invasiveness of Bone Metastatic Cells: A Comparison with Breast Carcinoma Cells. AB - We examined the influence of microenvironment stimuli on molecular events relevant to the biological functions of 1833-bone metastatic clone and the parental MDA-MB231 cells. (i) In both the cell lines, hepatocyte growth factor (HGF) and the osteoblasts' biological products down regulated nuclear Ets-1 protein level in concomitance with endogenous miR-125b accumulation. In contrast, under hypoxia nuclear Ets-1 was unchanged, notwithstanding the miR-125b increase. (ii) Also, the 1833-cell invasiveness and the expression of Endothelin-1, the target gene of Ets-1/HIF-1, showed opposite patterns under HGF and hypoxia. We clarified the molecular mechanism(s) reproducing the high miR-125b levels with the mimic in 1833 cells. Under hypoxia, the miR-125b mimic maintained a basal level and functional Ets-1 protein, as testified by the elevated cell invasiveness. However, under HGF ectopic miR-125b downregulated Ets-1 protein and cell motility, likely involving an Ets-1-dominant negative form sensible to serum conditions; Ets-1-activity inhibition by HGF implicated HIF-1alpha accumulation, which drugged Ets-1 in the complex bound to the Endothelin-1 promoter. Altogether, 1833-cell exposure to HGF would decrease Endothelin-1 transactivation and protein expression, with the possible impairment of Endothelin-1-dependent induction of E-cadherin, and the reversion towards an invasive phenotype: this was favoured by Ets-1 overexpression, which inhibited HIF-1alpha expression and HIF-1 activity. (iii) In MDA-MB231 cells, HGF strongly and rapidly decreased Ets 1, hampering invasiveness and reducing Ets-1-binding to Endothelin-1 promoter; HIF-1alpha did not form a complex with Ets-1 and Endothelin-1-luciferase activity was unchanged. Overall, depending on the microenvironment conditions and endogenous miR-125b levels, bone-metastatic cells might switch from Ets-1 dependent motility towards colonization/growth, regulated by the balance between Ets-1 and HIF-1. PMID- 29337875 TI - Aux/IAA Gene Family in Plants: Molecular Structure, Regulation, and Function. AB - Auxin plays a crucial role in the diverse cellular and developmental responses of plants across their lifespan. Plants can quickly sense and respond to changes in auxin levels, and these responses involve several major classes of auxin responsive genes, including the Auxin/Indole-3-Acetic Acid (Aux/IAA) family, the auxin response factor (ARF) family, small auxin upregulated RNA (SAUR), and the auxin-responsive Gretchen Hagen3 (GH3) family. Aux/IAA proteins are short-lived nuclear proteins comprising several highly conserved domains that are encoded by the auxin early response gene family. These proteins have specific domains that interact with ARFs and inhibit the transcription of genes activated by ARFs. Molecular studies have revealed that Aux/IAA family members can form diverse dimers with ARFs to regulate genes in various ways. Functional analyses of Aux/IAA family members have indicated that they have various roles in plant development, such as root development, shoot growth, and fruit ripening. In this review, recently discovered details regarding the molecular characteristics, regulation, and protein-protein interactions of the Aux/IAA proteins are discussed. These details provide new insights into the molecular basis of the Aux/IAA protein functions in plant developmental processes. PMID- 29337878 TI - Tetrasubstituted Imidazolium Salts as Potent Antiparasitic Agents against African and American Trypanosomiases. AB - Imidazolium salts are privileged compounds in organic chemistry, and have valuable biological properties. Recent studies show that symmetric imidazolium salts with bulky moieties can display antiparasitic activity against T. cruzi. After developing a facile methodology for the synthesis of tetrasubstituted imidazolium salts from propargylamines and isocyanides, we screened a small library of these adducts against the causative agents of African and American trypanosomiases. These compounds display nanomolar activity against T. brucei and low (or sub) micromolar activity against T. cruzi, with excellent selectivity indexes and favorable molecular properties, thereby emerging as promising hits for the treatment of Chagas disease and sleeping sickness. PMID- 29337879 TI - Microwave Backscatter-Based Wireless Temperature Sensor Fabricated by an Alumina Backed Au Slot Radiation Patch. AB - A wireless and passive temperature sensor operating up to 800 degrees C is proposed. The sensor is based on microwave backscatter RFID (radio frequency identification) technology. A thin-film planar structure and simple working principle make the sensor easy to operate under high temperature. In this paper, the proposed high temperature sensor was designed, fabricated, and characterized. Here the 99% alumina ceramic with a dimension of 40 mm * 40 mm * 1 mm was prepared in micromechanics for fabrication of the sensor substrate. The metallization of the Au slot patch was realized in magnetron sputtering with a slot width of 2 mm and a slot length of 32 mm. The measured resonant frequency of the sensor at 25 degrees C is 2.31 GHz. It was concluded that the resonant frequency decreases with the increase in the temperature in range of 25-800 degrees C. It was shown that the average sensor sensitivity is 101.94 kHz/ degrees C. PMID- 29337881 TI - Effects of Polypropylene Orientation on Mechanical and Heat Seal Properties of Polymer-Aluminum-Polymer Composite Films for Pouch Lithium-Ion Batteries. AB - In this study, polyamide-aluminum foil-polypropylene (PA-Al-PP) composite films with different orientation status of the PP layer were prepared, and their morphology, tensile, peeling and heat seal behavior were studied. The comparative study of tensile and fracture behaviors of single-layer film of PA, Al and PP, as well as the composite films of PA-Al, PP-Al and PA-Al-PP revealed that in PA-Al PP composite film, the PA layer with the highest tensile strength can share the tensile stress from the Al layer during stretching, while the PP layer with the lowest tensile strength can prevent further development of the small cracks on boundary of the Al layer during stretching. Moreover, the study of heat seal behavior suggested that both the orientation status and the heat seal conditions were important factors in determining the heat seal strength (HSS) and failure behavior of the sample. Four failure types were observed, and a clear correspondence between HSS and failure types was found. The results also elucidated that for the composite film, only in the cases where the tensile stress was efficiently released by each layer during HSS measurement could the composite film exhibit desired high HSS that was even higher than its tensile strength. PMID- 29337880 TI - The Sodium and Potassium Content of the Most Commonly Available Street Foods in Tajikistan and Kyrgyzstan in the Context of the FEEDCities Project. AB - This cross-sectional study is aimed at assessing sodium (Na) and potassium (K) content and the molar Na:K ratios of the most commonly available ready-to-eat street foods in Tajikistan and Kyrgyzstan. Four different samples of each of these foods were collected and 62 food categories were evaluated through bromatological analysis. Flame photometry was used to quantify sodium and potassium concentrations. The results show that home-made foods can be important sources of sodium. In particular, main dishes and sandwiches, respectively, contain more than 1400 and nearly 1000 mg Na in an average serving and provide approximately 70% and 50% of the maximum daily recommended values. Wide ranges of sodium content were found between individual samples of the same home-made food collected from different vending sites from both countries. In industrial foods, sodium contents ranged from 1 to 1511 mg/serving in Tajikistan, and from 19 to 658 mg/serving in Kyrgyzstan. Most Na:K ratios exceeded the recommended level of 1.0 and the highest ratios were found in home-made snacks (21.2) from Tajikistan and industrial beverages (16.4) from Kyrgyzstan. These findings not only improve data on the nutritional composition of foods in these countries, but may also serve as baseline information for future policies and interventions. PMID- 29337883 TI - Problematic Smartphone Use: Investigating Contemporary Experiences Using a Convergent Design. AB - Internet-enabled smartphones are increasingly ubiquitous in the Western world. Research suggests a number of problems can result from mobile phone overuse, including dependence, dangerous and prohibited use. For over a decade, this has been measured by the Problematic Mobile Phone Use Questionnaire (PMPU-Q). Given the rapid developments in mobile technologies, changes of use patterns and possible problematic and addictive use, the aim of the present study was to investigate and validate an updated contemporary version of the PMPU-Q (PMPU-Q R). A mixed methods convergent design was employed, including a psychometric survey (N = 512) alongside qualitative focus groups (N = 21), to elicit experiences and perceptions of problematic smartphone use. The results suggest the PMPU-Q-R factor structure can be updated to include smartphone dependence, dangerous driving, and antisocial smartphone use factors. Theories of problematic mobile phone use require consideration of the ubiquity and indispensability of smartphones in the present day and age, particularly regarding use whilst driving and in social interactions. PMID- 29337882 TI - Functional Analysis of Promoters from Three Subtypes of the PI3K Family and Their Roles in the Regulation of Lipid Metabolism by Insulin in Yellow Catfish Pelteobagrus fulvidraco. AB - In the present study, the length of 360, 1848 and 367 bp sequences of promoters from three subtypes of PI3K family (PI3KCa, PI3KC2b and PI3KC3) of yellow catfish Pelteobagrus fulvidraco were cloned and characterized. Bioinformatics analysis revealed that PI3KCa, PI3KC2b and PI3KC3 had different structures in their core promoter regions. The promoter regions of PI3KCa and PI3KC2b had CpG islands but no CAAT and TATA box. In contrast, the promoter of PI3KC3 had the canonical TATA and CAAT box but no CpG island. The binding sites of several transcription factors, such as HNF1, STAT and NF-kappaB, were predicted on PI3KCa promoter. The binding sites of transcription factors, such as FOXO1, PPAR-RXR, STAT, IK1, HNF6 and HNF3, were predicted on PI3KC2b promoter and the binding sites of FOXO1 and STAT transcription factors were predicted on PI3KC3 promoter. Deletion analysis indicated that these transcriptional factors were the potential regulators to mediate the activities of their promoters. Subsequent mutation analysis and electrophoretic mobility-shift assay (EMSA) demonstrated that HNF1 and IK1 directly bound with PI3KCa and PI3KC2b promoters and negatively regulated the activities of PI3KCa and PI3KC2b promoters, respectively. Conversely, FOXO1 directly bound with the PI3KC2b and PI3KC3 promoters and positively regulated their promoter activities. In addition, AS1842856 (AS, a potential FOXO1 inhibitor) incubation significantly reduced the relative luciferase activities of several plasmids of PI3KC2b and PI3KC3 but did not significantly influence the relative luciferase activities of the PI3KCa plasmids. Moreover, by using primary hepatocytes from yellow catfish, AS incubation significantly down-regulated the mRNA levels of PI3KCa, PI3KC2b and PI3KC3 and reduced triacylglyceride (TG) accumulation and insulin-induced TG accumulation, as well as the activities and the mRNA levels of several genes involved in lipid metabolism. Thus, the present study offers new insights into the mechanisms for transcriptional regulation of PI3Ks and for PI3Ks-mediated regulation of lipid metabolism by insulin in fish. PMID- 29337884 TI - Monitoring Strategies of Earth Dams by Ground-Based Radar Interferometry: How to Extract Useful Information for Seismic Risk Assessment. AB - The aim of this paper is to describe how ground-based radar interferometry can provide displacement measurements of earth dam surfaces and of vibration frequencies of its main concrete infrastructures. In many cases, dams were built many decades ago and, at that time, were not equipped with in situ sensors embedded in the structure when they were built. Earth dams have scattering properties similar to landslides for which the Ground-Based Synthetic Aperture Radar (GBSAR) technique has been so far extensively applied to study ground displacements. In this work, SAR and Real Aperture Radar (RAR) configurations are used for the measurement of earth dam surface displacements and vibration frequencies of concrete structures, respectively. A methodology for the acquisition of SAR data and the rendering of results is described. The geometrical correction factor, needed to transform the Line-of-Sight (LoS) displacement measurements of GBSAR into an estimate of the horizontal displacement vector of the dam surface, is derived. Furthermore, a methodology for the acquisition of RAR data and the representation of displacement temporal profiles and vibration frequency spectra of dam concrete structures is presented. For this study a Ku-band ground-based radar, equipped with horn antennas having different radiation patterns, has been used. Four case studies, using different radar acquisition strategies specifically developed for the monitoring of earth dams, are examined. The results of this work show the information that a Ku-band ground-based radar can provide to structural engineers for a non-destructive seismic assessment of earth dams. PMID- 29337885 TI - Research on Geometric Calibration of Spaceborne Linear Array Whiskbroom Camera. AB - The geometric calibration of a spaceborne thermal-infrared camera with a high spatial resolution and wide coverage can set benchmarks for providing an accurate geographical coordinate for the retrieval of land surface temperature. The practice of using linear array whiskbroom Charge-Coupled Device (CCD) arrays to image the Earth can help get thermal-infrared images of a large breadth with high spatial resolutions. Focusing on the whiskbroom characteristics of equal time intervals and unequal angles, the present study proposes a spaceborne linear array-scanning imaging geometric model, whilst calibrating temporal system parameters and whiskbroom angle parameters. With the help of the YG-14-China's first satellite equipped with thermal-infrared cameras of high spatial resolution China's Anyang Imaging and Taiyuan Imaging are used to conduct an experiment of geometric calibration and a verification test, respectively. Results have shown that the plane positioning accuracy without ground control points (GCPs) is better than 30 pixels and the plane positioning accuracy with GCPs is better than 1 pixel. PMID- 29337886 TI - Mechanical Activation of Adipose Tissue and Derived Mesenchymal Stem Cells: Novel Anti-Inflammatory Properties. AB - The adipose tissue is a source of inflammatory proteins, such as TNF, IL-6, and CXCL8. Most of their production occurs in macrophages that act as scavengers of dying adipocytes. The application of an orbital mechanical force for 6-10 min at 97 g to the adipose tissue, lipoaspirated and treated according to Coleman procedures, abolishes the expression of TNF-alpha and stimulates the expression of the anti-inflammatory protein TNF-stimulated gene-6 (TSG-6). This protein had protective and anti-inflammatory effects when applied to animal models of rheumatic diseases. We examined biopsy, lipoaspirate, and mechanically activated fat and observed that in addition to the increased TSG-6, Sox2, Nanog, and Oct4 were also strongly augmented by mechanical activation, suggesting an effect on stromal cell stemness. Human adipose tissue-derived mesenchymal stem cells (hADSCs), produced from activated fat, grow and differentiate normally with proper cell surface markers and chromosomal integrity, but their anti inflammatory action is far superior compared to those mesenchymal stem cells (MSCs) obtained from lipoaspirate. The expression and release of inflammatory cytokines from THP-1 cells was totally abolished in mechanically activated adipose tissue-derived hADSCs. In conclusion, we report that the orbital shaking of adipose tissue enhances its anti-inflammatory properties, and derived MSCs maintain such enhanced activity. PMID- 29337887 TI - The Use of Municipal Solid Waste Incineration Ash in Various Building Materials: A Belgian Point of View. AB - Huge amounts of waste are being generated, and even though the incineration process reduces the mass and volume of waste to a large extent, massive amounts of residues still remain. On average, out of 1.3 billion tons of municipal solid wastes generated per year, around 130 and 2.1 million tons are incinerated in the world and in Belgium, respectively. Around 400 kT of bottom ash residues are generated in Flanders, out of which only 102 kT are utilized here, and the rest is exported or landfilled due to non-conformity to environmental regulations. Landfilling makes the valuable resources in the residues unavailable and results in more primary raw materials being used, increasing mining and related hazards. Identifying and employing the right pre-treatment technique for the highest value application is the key to attaining a circular economy. We reviewed the present pre-treatment and utilization scenarios in Belgium, and the advancements in research around the world for realization of maximum utilization are reported in this paper. Uses of the material in the cement industry as a binder and cement raw meal replacement are identified as possible effective utilization options for large quantities of bottom ash. Pre-treatment techniques that could facilitate this use are also discussed. With all the research evidence available, there is now a need for combined efforts from incineration and the cement industry for technical and economic optimization of the process flow. PMID- 29337888 TI - Depression Symptom Patterns and Social Correlates among Chinese Americans. AB - The aim of this study is to examine and compare the depression symptoms pattern and social correlates in three groups: foreign-born Chinese Americans, US-born Chinese Americans, and non-Hispanic whites. This study used data from the Collaborative Psychiatric Epidemiology Surveys (CPES). The study sample consists of 599 Chinese Americans (468 for the foreign-born and 121 for the US-born) and 4032 non-Hispanic whites. Factor analysis was used to examine the depression symptom patterns by each subgroup. Four depression symptoms dimensions were examined: negative affect, somatic symptoms, cognitive symptoms, and suicidality. Logistic regression was used to investigate the effects of sociodemographic (age, gender, marital status, and education), physical health condition, and social relational factors (supports from and conflict with family and friends) on specific types of depression symptoms separately for the three subgroups. The findings showed little differences in depression symptom patterns but clear variation in the social correlates to the four depression dimensions across the three ethnocultural groups, foreign-born Chinese Americans, US-born Chinese Americans, and non-Hispanic whites. Clinicians should take into account the sociocultural factors of patients when making diagnosis and suggesting treatments. In addition, psychiatrists, psychologists, or other mental health service providers should offer treatment and coping suggestions based on the specific symptom dimensions of patients, and patients' ethnocultural backgrounds. PMID- 29337890 TI - Subcellular Reactive Oxygen Species (ROS) in Cardiovascular Pathophysiology. AB - There exist two opposing perspectives regarding reactive oxygen species (ROS) and their roles in angiogenesis and cardiovascular system, one that favors harmful and causal effects of ROS, while the other supports beneficial effects. Recent studies have shown that interaction between ROS in different sub-cellular compartments plays a crucial role in determining the outcomes (beneficial vs. deleterious) of ROS exposures on the vascular system. Oxidant radicals in one cellular organelle can affect the ROS content and function in other sub-cellular compartments in endothelial cells (ECs). In this review, we will focus on a critical fact that the effects or the final phenotypic outcome of ROS exposure to EC are tissue- or organ-specific, and depend on the spatial (subcellular localization) and temporal (duration of ROS exposure) modulation of ROS levels. PMID- 29337891 TI - Modeling of Dynamic Behavior of Carbon Fiber-Reinforced Polymer (CFRP) Composite under X-ray Radiation. AB - Carbon fiber-reinforced polymer (CFRP) composites have been increasingly used in spacecraft applications. Spacecraft may encounter highenergy-density X-ray radiation in outer space that can cause severe damage. To protect spacecraft from such unexpected damage, it is essential to predict the dynamic behavior of CFRP composites under X-ray radiation. In this study, we developed an in-house three dimensional explicit finite element (FEM) code to investigate the dynamic responses of CFRP composite under X-ray radiation for the first time, by incorporating a modified PUFF equation-of-state. First, the blow-off impulse (BOI) momentum of an aluminum panel was predicted by our FEM code and compared with an existing radiation experiment. Then, the FEM code was utilized to determine the dynamic behavior of a CFRP composite under various radiation conditions. It was found that the numerical result was comparable with the experimental one. Furthermore, the CFRP composite was more effective than the aluminum panel in reducing radiation-induced pressure and BOI momentum. The numerical results also revealed that a 1 keV X-ray led to vaporization of surface materials and a high-magnitude compressive stress wave, whereas a low-magnitude stress wave was generated with no surface vaporization when a 3 keV X-ray was applied. PMID- 29337892 TI - Improving Remote Health Monitoring: A Low-Complexity ECG Compression Approach. AB - Recent advances in mobile technology have created a shift towards using battery driven devices in remote monitoring settings and smart homes. Clinicians are carrying out diagnostic and screening procedures based on the electrocardiogram (ECG) signals collected remotely for outpatients who need continuous monitoring. High-speed transmission and analysis of large recorded ECG signals are essential, especially with the increased use of battery-powered devices. Exploring low-power alternative compression methodologies that have high efficiency and that enable ECG signal collection, transmission, and analysis in a smart home or remote location is required. Compression algorithms based on adaptive linear predictors and decimation by a factor B / K are evaluated based on compression ratio (CR), percentage root-mean-square difference (PRD), and heartbeat detection accuracy of the reconstructed ECG signal. With two databases (153 subjects), the new algorithm demonstrates the highest compression performance ( CR = 6 and PRD = 1.88 ) and overall detection accuracy (99.90% sensitivity, 99.56% positive predictivity) over both databases. The proposed algorithm presents an advantage for the real-time transmission of ECG signals using a faster and more efficient method, which meets the growing demand for more efficient remote health monitoring. PMID- 29337889 TI - Reactive Oxygen Species and Mitochondrial Dynamics: The Yin and Yang of Mitochondrial Dysfunction and Cancer Progression. AB - Mitochondria are organelles with a highly dynamic ultrastructure maintained by a delicate equilibrium between its fission and fusion rates. Understanding the factors influencing this balance is important as perturbations to mitochondrial dynamics can result in pathological states. As a terminal site of nutrient oxidation for the cell, mitochondrial powerhouses harness energy in the form of ATP in a process driven by the electron transport chain. Contemporaneously, electrons translocated within the electron transport chain undergo spontaneous side reactions with oxygen, giving rise to superoxide and a variety of other downstream reactive oxygen species (ROS). Mitochondrially-derived ROS can mediate redox signaling or, in excess, cause cell injury and even cell death. Recent evidence suggests that mitochondrial ultrastructure is tightly coupled to ROS generation depending on the physiological status of the cell. Yet, the mechanism by which changes in mitochondrial shape modulate mitochondrial function and redox homeostasis is less clear. Aberrant mitochondrial morphology may lead to enhanced ROS formation, which, in turn, may deteriorate mitochondrial health and further exacerbate oxidative stress in a self-perpetuating vicious cycle. Here, we review the latest findings on the intricate relationship between mitochondrial dynamics and ROS production, focusing mainly on its role in malignant disease. PMID- 29337893 TI - Soybean-Derived Phytoalexins Improve Cognitive Function through Activation of Nrf2/HO-1 Signaling Pathway. AB - As soy-derived glyceollins are known to induce antioxidant enzymes in various types of cells and tissues, we hypothesized that the compounds could protect neurons from damage due to reactive oxygen species (ROS). In order to examine the neuroprotective effect of glyceollins, primary cortical neurons collected from mice and mouse hippocampal HT22 cells were challenged with glutamate. Glyceollins attenuated glutamate-induced cytotoxicity in primary cortical neuron isolated from mice carrying wild-type nuclear factor (erythroid-derived 2)-like 2 (Nrf2), but the compounds were ineffective in those isolated from Nrf2 knockout mice, suggesting the involvement of the Nrf2 signaling pathway in glyceollin-mediated neuroprotection. Furthermore, the inhibition of heme oxygenase-1 (HO-1), a major downstream enzyme of Nrf2, abolished the suppressive effect of glyceollins against glutamate-induced ROS production and cytotoxicity, confirming that activation of HO-1 by glyceollins is responsible for the neuroprotection. To examine whether glyceollins also improve cognitive ability, mice pretreated with glyceollins were challenged with scopolamine and subjected to behavioral tests. Glyceollins attenuated scopolamine-induced cognitive impairment of mice, but failed to enhance memory in Nrf2 knockout mice, suggesting that the memory enhancing effect is also mediated by the Nrf2 signaling pathway. Overall, glyceollins showed neuroprotection against glutamate-induced damage, and attenuated scopolamine-induced memory deficits in an Nrf2-dependent manner. PMID- 29337894 TI - Inclinometer Assembly Error Calibration and Horizontal Image Correction in Photoelectric Measurement Systems. AB - Inclinometer assembly error is one of the key factors affecting the measurement accuracy of photoelectric measurement systems. In order to solve the problem of the lack of complete attitude information in the measurement system, this paper proposes a new inclinometer assembly error calibration and horizontal image correction method utilizing plumb lines in the scenario. Based on the principle that the plumb line in the scenario should be a vertical line on the image plane when the camera is placed horizontally in the photoelectric system, the direction cosine matrix between the geodetic coordinate system and the inclinometer coordinate system is calculated firstly by three-dimensional coordinate transformation. Then, the homography matrix required for horizontal image correction is obtained, along with the constraint equation satisfying the inclinometer-camera system requirements. Finally, the assembly error of the inclinometer is calibrated by the optimization function. Experimental results show that the inclinometer assembly error can be calibrated only by using the inclination angle information in conjunction with plumb lines in the scenario. Perturbation simulation and practical experiments using MATLAB indicate the feasibility of the proposed method. The inclined image can be horizontally corrected by the homography matrix obtained during the calculation of the inclinometer assembly error, as well. PMID- 29337895 TI - A Coarse-Alignment Method Based on the Optimal-REQUEST Algorithm. AB - In this paper, we proposed a coarse-alignment method for strapdown inertial navigation systems based on attitude determination. The observation vectors, which can be obtained by inertial sensors, usually contain various types of noise, which affects the convergence rate and the accuracy of the coarse alignment. Given this drawback, we studied an attitude-determination method named optimal-REQUEST, which is an optimal method for attitude determination that is based on observation vectors. Compared to the traditional attitude-determination method, the filtering gain of the proposed method is tuned autonomously; thus, the convergence rate of the attitude determination is faster than in the traditional method. Within the proposed method, we developed an iterative method for determining the attitude quaternion. We carried out simulation and turntable tests, which we used to validate the proposed method's performance. The experiment's results showed that the convergence rate of the proposed optimal REQUEST algorithm is faster and that the coarse alignment's stability is higher. In summary, the proposed method has a high applicability to practical systems. PMID- 29337897 TI - Long-Term Mechanical Behavior of Nano Silica Sol Grouting. AB - The longevity of grouting has a significant effect on the safe and sustainable operation of many engineering projects. A 500-day experiment was carried out to study the long-term mechanical behavior of nano silica sol grouting. The nano silica sol was activated with different proportions of a NaCl catalyst and cured under fluctuating temperature and humidity conditions. The mechanical parameters of the grout samples were tested using an electrohydraulic uniaxial compression tester and an improved Vicat instrument. Scanning electron microscope, X-ray diffraction, and ultrasonic velocity tests were carried out to analyze the strength change micro-mechanism. Tests showed that as the catalyst dosage in the grout mix is decreased, the curves on the graphs showing changes in the weight and geometric parameters of the samples over time could be divided into three stages, a shrinkage stage, a stable stage, and a second shrinkage stage. The catalyst improved the stability of the samples and reduced moisture loss. Temperature rise was also a driving force for moisture loss. Uniaxial compressive stress-strain curves for all of the samples were elastoplastic. The curves for uniaxial compression strength and secant modulus plotted against time could be divided into three stages. Sample brittleness increased with time and the brittleness index increased with higher catalyst dosages in the latter part of the curing time. Plastic strength-time curves exhibit allometric scaling. Curing conditions mainly affect the compactness, and then affect the strength. PMID- 29337896 TI - Caffeic Acid and Metformin Inhibit Invasive Phenotype Induced by TGF-beta1 in C 4I and HTB-35/SiHa Human Cervical Squamous Carcinoma Cells by Acting on Different Molecular Targets. AB - During the progression of epithelial cancer, the cells may lose epithelial markers and gain mesenchymal phenotype via Epithelial-Mesenchymal Transition (EMT). Such transformation of epithelial cancer cells to mesenchymal-like characteristic benefits plasticity and supports their ability to migrate. The aim of this study was to evaluate the influence of natural compound Caffeic Acid (CA) alone and in combination with antidiabetic drug Metformin (Met) on metastatic progression of two human cervical squamous cell cancer lines, C-4I and HTB 35/SiHa cells. EMT program was triggered by exposition of both epithelial cell lines to TGF-beta1. Gene expression patterns related to epithelial/mesenchymal phenotype were evaluated by Real-Time PCR analysis and the protein amount was detected by western blot. The treatment of human squamous cancer cells with CA and with Met, suppressed the motility of cells and the effect depended on a particular cell line. Both compounds regulated the EMT process in C4-I and HTB-35 cells by interfering with different molecular targets. In TGF-beta1-stimulated C4 I cells, CA suppressed the expression of mesenchymal transcription factor SNAI1 which resulted in enhanced expression of epithelial markers E-cadherin, Occludin and Claudin. Additionally, CA blocked MMP-9 and upregulated TIMP-1 expression, a specific inhibitor of MMP-9. In HTB-35 cells stimulated with TGF-beta1, Met decreased the expression of Vimentin. By suppressing hypoxia master regulator HIF 1alpha, Met caused downregulation of CAIX, an enzyme involved in metastasis of aggressive malignant cells. In this study we showed that CA and Met inhibited EMT process in cancer cells via different mechanisms. However, when applied together, compounds exerted the greater effect on EMT than each compound alone. This is the first report revealing that CA alone and co-treated with Met may reverse mesenchymal phenotype of TGF-beta1-treated cervical tumor cells and we believe that the use of the two small molecules may be considered as a potential therapeutic approach for metastatic cervical cancer. PMID- 29337899 TI - Synergistic Effects of Copper Sites on Apparent Stability of Multicopper Oxidase, Fet3p. AB - Saccharomyces cerevisiae Fet3p is a multicopper oxidase that contains three cupredoxin-like domains and four copper ions located in three distinct metal sites (T1 in domain 3; T2 and the binuclear T3 at the interface between domains 1 and 3). To probe the role of the copper sites in Fet3p thermodynamic stability, we performed urea-induced unfolding experiments with holo-, apo- and three partially-metallated (T1, T2 and T1/T2 sites depleted of copper) forms of Fet3p. Using a combination of spectroscopic probes (circular dichroism, fluorescence intensity and maximum, 8-anilinonaphthalene-1-sulfonic acid (ANS) emission, oxidase activity and blue color), we reveal that all forms of Fet3p unfold in a four-state reaction with two partially-folded intermediates. Using phase diagrams, it emerged that Fet3p with all copper sites filled had a significantly higher stability as compared to the combined contributions of the individual copper sites. Hence, there is long-range inter-domain communication between distal copper sites that contribute to overall Fet3p stability. PMID- 29337900 TI - Age-Related Epigenetic Derangement upon Reprogramming and Differentiation of Cells from the Elderly. AB - Aging is a complex multi-layered phenomenon. The study of aging in humans is based on the use of biological material from hard-to-gather tissues and highly specific cohorts. The introduction of cell reprogramming techniques posed promising features for medical practice and basic research. Recently, a growing number of studies have been describing the generation of induced pluripotent stem cells (iPSCs) from old or centenarian biologic material. Nonetheless, Reprogramming techniques determine a profound remodelling on cell epigenetic architecture whose extent is still largely debated. Given that cell epigenetic profile changes with age, the study of cell-fate manipulation approaches on cells deriving from old donors or centenarians may provide new insights not only on regenerative features and physiology of these cells, but also on reprogramming associated and age-related epigenetic derangement. PMID- 29337902 TI - Cytokine Disturbances in Coronary Artery Ectasia Do Not Support Atherosclerosis Pathogenesis. AB - BACKGROUND: Coronary artery ectasia (CAE) is a rare disorder commonly associated with additional features of atherosclerosis. In the present study, we aimed to examine the systemic immune-inflammatory response that might associate CAE. METHODS: Plasma samples were obtained from 16 patients with coronary artery ectasia (mean age 64.9 +/- 7.3 years, 6 female), 69 patients with coronary artery disease (CAD) and angiographic evidence for atherosclerosis (age 64.5 +/- 8.7 years, 41 female), and 140 controls (mean age 58.6 +/- 4.1 years, 40 female) with normal coronary arteries. Samples were analyzed at Umea University Biochemistry Laboratory, Sweden, using the V-PLEX Pro-Inflammatory Panel 1 (human) Kit. Statistically significant differences (p < 0.05) between patient groups and controls were determined using Mann-Whitney U-tests. RESULTS: The CAE patients had significantly higher plasma levels of INF-gamma, TNF-alpha, IL-1beta, and IL 8 (p = 0.007, 0.01, 0.001, and 0.002, respectively), and lower levels of IL-2 and IL-4 (p < 0.001 for both) compared to CAD patients and controls. The plasma levels of IL-10, IL-12p, and IL-13 were not different between the three groups. None of these markers could differentiate between patients with pure (n = 6) and mixed with minimal atherosclerosis (n = 10) CAE. CONCLUSIONS: These results indicate an enhanced systemic pro-inflammatory response in CAE. The profile of this response indicates activation of macrophages through a pathway and trigger different from those of atherosclerosis immune inflammatory response. PMID- 29337901 TI - Transcriptional-Readthrough RNAs Reflect the Phenomenon of "A Gene Contains Gene(s)" or "Gene(s) within a Gene" in the Human Genome, and Thus Are Not Chimeric RNAs. AB - Tens of thousands of chimeric RNAs, i.e., RNAs with sequences of two genes, have been identified in human cells. Most of them are formed by two neighboring genes on the same chromosome and are considered to be derived via transcriptional readthrough, but a true readthrough event still awaits more evidence and trans splicing that joins two transcripts together remains as a possible mechanism. We regard those genomic loci that are transcriptionally read through as unannotated genes, because their transcriptional and posttranscriptional regulations are the same as those of already-annotated genes, including fusion genes formed due to genetic alterations. Therefore, readthrough RNAs and fusion-gene-derived RNAs are not chimeras. Only those two-gene RNAs formed at the RNA level, likely via trans splicing, without corresponding genes as genomic parents, should be regarded as authentic chimeric RNAs. However, since in human cells, procedural and mechanistic details of trans-splicing have never been disclosed, we doubt the existence of trans-splicing. Therefore, there are probably no authentic chimeras in humans, after readthrough and fusion-gene derived RNAs are all put back into the group of ordinary RNAs. Therefore, it should be further determined whether in human cells all two-neighboring-gene RNAs are derived from transcriptional readthrough and whether trans-splicing truly exists. PMID- 29337903 TI - Use of Accelerometer Activity Monitors to Detect Changes in Pruritic Behaviors: Interim Clinical Data on 6 Dogs. AB - Veterinarians and pet owners have limited ability to assess pruritic behaviors in dogs. This pilot study assessed the capacity of the Vetrax(r) triaxial accelerometer to measure these behaviors in six dogs with pruritus likely due to environmental allergens. Dogs wore the activity monitor for two weeks while consuming their usual pet food (baseline), then for eight weeks while consuming a veterinary-exclusive pet food for dogs with suspected non-food-related skin conditions (Hill's Prescription Diet(r) Derm DefenseTM Canine dry food). Veterinarians and owners completed questionnaires during baseline, phase 1 (days 1-28) and phase 2 (days 29-56) without knowledge of the activity data. Continuous 3-axis accelerometer data was processed using proprietary behavior recognition algorithms and analyzed using general linear mixed models with false discovery rate-adjusted p values. Veterinarian-assessed overall clinical signs of pruritus were significantly predicted by scratching (beta 0.176, p = 0.008), head shaking (beta 0.197, p < 0.001) and sleep quality (beta -0.154, p < 0.001), while owner assessed quality of life was significantly predicted by scratching (beta -0.103, p = 0.013) and head shaking (beta -0.146, p < 0.001). Among dogs exhibiting pruritus signs eating the veterinary-exclusive food, the Vetrax(r) sensor provided an objective assessment of clinically relevant pruritic behaviors that agreed with owner and veterinarian reports. PMID- 29337904 TI - Maternal Exposure to PM2.5 during Pregnancy Induces Impaired Development of Cerebral Cortex in Mice Offspring. AB - Air pollution is a serious environmental health problem closely related to the occurrence of central nervous system diseases. Exposure to particulate matter with an aerodynamic diameter less than or equal to 2.5 um (PM2.5) during pregnancy may affect the growth and development of infants. The present study was to investigate the effects of maternal exposure to PM2.5 during pregnancy on brain development in mice offspring. Pregnant mice were randomly divided into experimental groups of low-, medium-, or high-dosages of PM2.5, a mock-treated group which was treated with the same amount of phosphate buffer solution (PBS), and acontrol group which was untreated. The ethology of offspring mice on postnatal days 1, 7, 14, 21, and 30, along with neuronal development and apoptosis in the cerebral cortex were investigated. Compared with the control, neuronal mitochondrial cristae fracture, changed autophagy characteristics, significantly increased terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) positive cell rate, and mRNA levels of apoptosis-related caspase 8 and caspase-9 were found in cerebral cortex of mice offspring from the treatment groups, with mRNA levels of Bcl-2 and ratio of Bcl-2 to Bax decreased. Treatment groups also demonstrated enhanced protein expressions of apoptosis related cleaved caspase-3, cleaved caspase-8 and cleaved caspase-9, along with declined proliferating cell nuclear antigen (PCNA), Bcl-2, and ratio of Bcl-2 to Bax. Open field experiments and tail suspension experiments showed that exposure to high dosage of PM2.5 resulted in decreased spontaneous activities but increased static accumulation time in mice offspring, indicating anxiety, depression, and social behavioral changes. Our results suggested that maternal exposure to PM2.5 during pregnancy might interfere with cerebral cortex development in mice offspring by affecting cell apoptosis. PMID- 29337905 TI - The Role of miRNAs in the Pathophysiology of Liver Diseases and Toxicity. AB - Both acute and chronic liver toxicity represents a major global health burden and an important cause of morbidity and lethality worldwide. Despite epochal progress in the treatment of hepatitis C virus infections, pharmacological treatment strategies for most liver diseases are still limited and new targets for prevention or treatment of liver disease are urgently needed. MicroRNAs (miRNAs) represent a new class of highly conserved small non-coding RNAs that are involved in the regulation of gene expression by targeting whole networks of so called "targets". Previous studies have shown that the expression of miRNAs is specifically altered in almost all acute and chronic liver diseases. In this context, it was shown that miRNA can exert causal roles, being pro- or anti inflammatory, as well as pro- or antifibrotic mediators or being oncogenes as well as tumor suppressor genes. Recent data suggested a potential therapeutic use of miRNAs by targeting different steps in the hepatic pathophysiology. Here, we review the function of miRNAs in the context of acute and chronic liver diseases. Furthermore, we highlight the potential role of circulating microRNAs in diagnosis of liver diseases and discuss the major challenges and drawbacks that currently prevent the use of miRNAs in clinical routine. PMID- 29337906 TI - Specific Collagen Peptides Improve Bone Mineral Density and Bone Markers in Postmenopausal Women-A Randomized Controlled Study. AB - Introduction: Investigations in rodents as well as in vitro experiments have suggested an anabolic influence of specific collagen peptides (SCP) on bone formation and bone mineral density (BMD). The goal of the study was to investigate the effect of 12-month daily oral administration of 5 g SCP vs. placebo (CG: control group) on BMD in postmenopausal women with primary, age related reduction in BMD. Methods: 131 women were enrolled in this randomized, placebo-controlled double-blinded investigation. The primary endpoint was the change in BMD of the femoral neck and the spine after 12 months. In addition, plasma levels of bone markers-amino-terminal propeptide of type I collagen (P1NP) and C-telopeptide of type I collagen (CTX 1)-were analysed. Results: A total of 102 women completed the study, but all subjects were included in the intention-to treat (ITT) analysis (age 64.3 +/- 7.2 years; Body Mass Index, BMI 23.6 +/- 3.6 kg/m2; T-score spine -2.4 +/- 0.6; T-score femoral neck -1.4 +/- 0.5). In the SCP group (n = 66), BMD of the spine and of the femoral neck increased significantly compared to the control group (n = 65) (T-score spine: SCP +0.1 +/- 0.26; CG 0.03 +/- 0.18; ANCOVA p = 0.030; T-score femoral neck: SCP +0.09 +/- 0.24; CG 0.01 +/- 0.19; ANCOVA p = 0.003). P1NP increased significantly in the SCP group (p = 0.007), whereas CTX 1 increased significantly in the control group (p = 0.011). Conclusions: These data demonstrate that the intake of SCP increased BMD in postmenopausal women with primary, age-related reduction of BMD. In addition, SCP supplementation was associated with a favorable shift in bone markers, indicating increased bone formation and reduced bone degradation. PMID- 29337907 TI - Few Sex Differences in Hospitalized Suicide Attempters Aged 70 and Above. AB - Relatively little research attention has been paid to sex issues in late life suicidal behaviour. The aim was to compare clinical characteristics of women and men aged 70+ who were hospitalized after a suicide attempt. We hypothesized higher depression and anxiety scores in women, and we expected to find that men would more often attribute the attempt to health problems and compromised autonomy. Participants (56 women and 47 men, mean age 80) were interviewed by a psychologist. In addition to psychiatric and somatic health assessments, participants responded to an open-ended question concerning attributions of the attempt. There were no sex differences in depression and anxiety. Forty-five percent of the men and 14% of the women had a history of substance use disorder (p = 0.02). At least one serious physical disability was noted in 60.7% of the women and 53.2% of the men (p = 0.55). Proportions attributing their attempt to somatic illness did not differ (women, 14.5% vs. men 17.4%, p = 0.79), and similar proportions attributed the attempt to reduced autonomy (women, 21.8% vs. men, 26.1%, p = 0.64). We found strikingly similar figures for depression scores, functional disability and attributions for attempting suicide in older men and women. Larger studies are needed in diverse settings as sex differences might be influenced by cultural context. PMID- 29337909 TI - Salvia Species as Sources of Natural Products with Antiprotozoal Activity. AB - Natural products from plants have been used since ancestral times to treat a wide variety of diseases worldwide. Plants of the genus Salvia (Sage) have been reported to be used for the prevention and treatment of various diseases and ailments. In particular, some Salvia species have been used in traditional medicine to treat diseases caused by protozoan parasites of the genera Trypanosoma, Leishmania and Plasmodium and scientific studies have demonstrated the activity of various isolated constituents from these plants against these pathogens. The current review attempts to give a critical overview of published information about the antiprotozoal activity of species of the genus Salvia and their chemical constituents. It is meant to give a unified overview of these results in order to avoid repetitions caused, e.g., by limited access to some primary reports, and to stimulate further research to possibly facilitate the development of new molecular leads against protozoal neglected tropical diseases (NTDs) based on Salvia constituents. PMID- 29337911 TI - Throughput Analysis on 3-Dimensional Underwater Acoustic Network with One-Hop Mobile Relay. AB - Underwater acoustic communication network (UACN) has been considered as an essential infrastructure for ocean exploitation. Performance analysis of UACN is important in underwater acoustic network deployment and management. In this paper, we analyze the network throughput of three-dimensional randomly deployed transmitter-receiver pairs. Due to the long delay of acoustic channels, complicated networking protocols with heavy signaling overhead may not be appropriate. In this paper, we consider only one-hop or two-hop transmission, to save the signaling cost. That is, we assume the transmitter sends the data packet to the receiver by one-hop direct transmission, or by two-hop transmission via mobile relays. We derive the closed-form formulation of packet delivery rate with respect to the transmission delay and the number of transmitter-receiver pairs. The correctness of the derivation results are verified by computer simulations. Our analysis indicates how to obtain a precise tradeoff between the delay constraint and the network capacity. PMID- 29337910 TI - Network-Based Methods for Identifying Key Active Proteins in the Extracellular Electron Transfer Process in Shewanella oneidensis MR-1. AB - Shewanella oneidensis MR-1 can transfer electrons from the intracellular environment to the extracellular space of the cells to reduce the extracellular insoluble electron acceptors (Extracellular Electron Transfer, EET). Benefiting from this EET capability, Shewanella has been widely used in different areas, such as energy production, wastewater treatment, and bioremediation. Genome-wide proteomics data was used to determine the active proteins involved in activating the EET process. We identified 1012 proteins with decreased expression and 811 proteins with increased expression when the EET process changed from inactivation to activation. We then networked these proteins to construct the active protein networks, and identified the top 20 key active proteins by network centralization analysis, including metabolism- and energy-related proteins, signal and transcriptional regulatory proteins, translation-related proteins, and the EET related proteins. We also constructed the integrated protein interaction and transcriptional regulatory networks for the active proteins, then found three exclusive active network motifs involved in activating the EET process-Bi feedforward Loop, Regulatory Cascade with a Feedback, and Feedback with a Protein Protein Interaction (PPI)-and identified the active proteins involved in these motifs. Both enrichment analysis and comparative analysis to the whole-genome data implicated the multiheme c-type cytochromes and multiple signal processing proteins involved in the process. Furthermore, the interactions of these motif guided active proteins and the involved functional modules were discussed. Collectively, by using network-based methods, this work reported a proteome-wide search for the key active proteins that potentially activate the EET process. PMID- 29337912 TI - Social Incentive Mechanism Based Multi-User Sensing Time Optimization in Co Operative Spectrum Sensing with Mobile Crowd Sensing. AB - Co-operative spectrum sensing emerging as a significant method to improve the utilization of the spectrum needs sufficient sensing users to participate. Existing related papers consider only the limited secondary users in current sensing system and assume that they will always perform the co-operative spectrum sensing out of obligation. However, this assumption is impractical in the realistic situation where the secondary users are rational and they will not join in the co-operative sensing process without a certain reward to compensate their sensing energy consumption, especially the ones who have no data transmitting in current time slot. To solve this problem, we take advantage of the mobile crowd sensing to supply adequate co-operative sensing candidates, in which the sensing users are not only the secondary users but also a crowd of widely distributed mobile users equipped with personal spectrum sensors (such as smartphones, vehicle sensors). Furthermore, a social incentive mechanism is also adapted to motivate the participations of mobile sensing users. In this paper, we model the interactions among the motivated sensing users as a co-operative game where they adjust their own sensing time strategies to maximize the co-operative sensing utility, which eventually guarantees the detection performance and prevents the global sensing cost being too high. We prove that the game based optimization problem is NP-hard and exists a unique optimal equilibrium. An improved differential evolution algorithm is proposed to solve the optimization problem. Simulation results prove the better performance in our proposed multi-user sensing time optimization model and the proposed improved differential evolution algorithm, respectively compared with the non-optimization model and the other two typical equilibrium solution algorithms. PMID- 29337913 TI - Proteomic Analysis and Identification of Possible Allergenic Proteins in Mature Pollen of Populus tomentosa. AB - Pollen grains from Populus tomentosa, a widely cultivated tree in northern area of China, are considered to be an important aeroallergen causing severe allergic diseases. To gain insight into their allergenic components, mature Populus tomentosa pollen proteins were analyzed by two-dimensional gel electrophoresis (2 DE) and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF/TOF MS). A total of 412 spots from mature pollen were resolved on pH 4-7 immobilized pH gradient (IPG) strips and 159 distinct proteins were identified from 242 spots analyzed. The identified proteins were categorized based on their functional role in the pollen, which included proteins involved in energy regulation, protein fate, protein synthesis and processing, metabolism, defense/stress responses, development and other functional categories. Moreover, among the identified proteins, 27 proteins were identified as putative allergens using the Structural Database of Allergenic Proteins (SDAP) tool and Allergen Online. The expression patterns of these putative allergen genes indicate that several of these genes are highly expressed in pollen. The identified putative allergens have the potential to improve specific diagnosis and can be used to develop vaccines for immunotherapy against poplar pollen allergy. PMID- 29337914 TI - Acoustic Transducers as Passive Cooperative Targets for Wireless Sensing of the Sub-Surface World: Challenges of Probing with Ground Penetrating RADAR. AB - Passive wireless transducers are used as sensors, probed by a RADAR system. A simple way to separate the returning signal from the clutter is to delay the response, so that the clutter decays before the echoes are received. This can be achieved by introducing a fixed delay in the sensor design. Acoustic wave transducers are ideally suited as cooperative targets for passive, wireless sensing. The incoming electromagnetic pulse is converted into an acoustic wave, propagated on the sensor substrate surface, and reflected as an electromagnetic echo. According to a known law, the acoustic wave propagation velocity depends on the physical quantity under investigation, which is then measured as an echo delay. Both conversions between electromagnetic and acoustic waves are based on the piezoelectric property of the substrate of which the sensor is made. Investigating underground sensing, we address the problems of using GPR (Ground Penetrating RADAR) for probing cooperative targets. The GPR is a good candidate for this application because it provides an electromagnetic source and receiver, as well as echo recording tools. Instead of designing dedicated electronics, we choose a commercially available, reliable and rugged instrument. The measurement range depends on parameters like antenna radiation pattern, radio spectrum matching between GPR and the target, antenna-sensor impedance matching and the transfer function of the target. We demonstrate measurements at depths ranging from centimeters to circa 1 m in a sandbox. In our application, clutter rejection requires delays between the emitted pulse and echoes to be longer than in the regular use of the GPR for geophysical measurements. This delay, and the accuracy needed for sensing, challenge the GPR internal time base. In the GPR units we used, the drift turns out to be incompatible with the targeted application. The available documentation of other models and brands suggests that this is a rather general limitation. We solved the problem by replacing the analog ramp generator defining the time base with a fully digital solution, whose time accuracy and stability relies on a quartz oscillator. The resulting stability is acceptable for sub-surface cooperative sensor measurement. PMID- 29337915 TI - Comparing Classic and Interval Analytical Hierarchy Process Methodologies for Measuring Area-Level Deprivation to Analyze Health Inequalities. AB - Deprivation indices are useful measures to study health inequalities. Different techniques are commonly applied to construct deprivation indices, including multi criteria decision methods such as the analytical hierarchy process (AHP). The multi-criteria deprivation index for the city of Quito is an index in which indicators are weighted by applying the AHP. In this research, a variation of this index is introduced that is calculated using interval AHP methodology. Both indices are compared by applying logistic generalized linear models and multilevel models, considering self-reported health as the dependent variable and deprivation and self-reported quality of life as the independent variables. The obtained results show that the multi-criteria deprivation index for the city of Quito is a meaningful measure to assess neighborhood effects on self-reported health and that the alternative deprivation index using the interval AHP methodology more thoroughly represents the local knowledge of experts and stakeholders. These differences could support decision makers in improving health planning and in tackling health inequalities in more deprived areas. PMID- 29337916 TI - Real Time Cascade Impactor Based On Surface Acoustic Wave Delay Lines for PM10 and PM2.5 Mass Concentration Measurement. AB - In this research, Surface Acoustic Wave (SAW) sensors are combined with a cascade impactor to perform real time PM10 and PM2.5 mass concentration measurements. The SAW sensors consist of 125 MHz delay lines based on Love waves propagating on an AT-cut quartz substrate. The Love waves are guided on the substrate's surface using a silica layer. SAW sensors themselves are not capable to discriminate particles by their size, therefore, particle separation based on aerodynamic diameter is achieved using a 3 Lpm dedicated cascade impactor. The latter was designed to integrate the SAW sensors which are monitored using a phase shift measurement. The collected particles impact on the acoustic sensor's surface inducing a gravimetric effect that modifies the acoustic wave propagation conditions. The resulted phase shift allows the measurement of the mass deposited on the sensitive zone. The novel cascade impactor with SAW sensors as particle collecting stages is exposed to different aerosols in the 0-150 MUg/m3 concentration range and proved to be able to detect and differentiate particles based on their size in real time. The system's response was compared to a commercial optical counter based on light scattering technology and was found to be in good agreement with it. PMID- 29337917 TI - The HydroColor App: Above Water Measurements of Remote Sensing Reflectance and Turbidity Using a Smartphone Camera. AB - HydroColor is a mobile application that utilizes a smartphone's camera and auxiliary sensors to measure the remote sensing reflectance of natural water bodies. HydroColor uses the smartphone's digital camera as a three-band radiometer. Users are directed by the application to collect a series of three images. These images are used to calculate the remote sensing reflectance in the red, green, and blue broad wavelength bands. As with satellite measurements, the reflectance can be inverted to estimate the concentration of absorbing and scattering substances in the water, which are predominately composed of suspended sediment, chlorophyll, and dissolved organic matter. This publication describes the measurement method and investigates the precision of HydroColor's reflectance and turbidity estimates compared to commercial instruments. It is shown that HydroColor can measure the remote sensing reflectance to within 26% of a precision radiometer and turbidity within 24% of a portable turbidimeter. HydroColor distinguishes itself from other water quality camera methods in that its operation is based on radiometric measurements instead of image color. HydroColor is one of the few mobile applications to use a smartphone as a completely objective sensor, as opposed to subjective user observations or color matching using the human eye. This makes HydroColor a powerful tool for crowdsourcing of aquatic optical data. PMID- 29337918 TI - Polyacrylamide Ferrogels with Magnetite or Strontium Hexaferrite: Next Step in the Development of Soft Biomimetic Matter for Biosensor Applications. AB - Magnetic biosensors are an important part of biomedical applications of magnetic materials. As the living tissue is basically a "soft matter." this study addresses the development of ferrogels (FG) with micron sized magnetic particles of magnetite and strontium hexaferrite mimicking the living tissue. The basic composition of the FG comprised the polymeric network of polyacrylamide, synthesized by free radical polymerization of monomeric acrylamide (AAm) in water solution at three levels of concentration (1.1 M, 0.85 M and 0.58 M) to provide the FG with varying elasticity. To improve FG biocompatibility and to prevent the precipitation of the particles, polysaccharide thickeners-guar gum or xanthan gum were used. The content of magnetic particles in FG varied up to 5.2 wt % depending on the FG composition. The mechanical properties of FG and their deformation in a uniform magnetic field were comparatively analyzed. FG filled with strontium hexaferrite particles have larger Young's modulus value than FG filled with magnetite particles, most likely due to the specific features of the adhesion of the network's polymeric subchains on the surface of the particles. FG networks with xanthan are stronger and have higher modulus than the FG with guar. FG based on magnetite, contract in a magnetic field 0.42 T, whereas some FG based on strontium hexaferrite swell. Weak FG with the lowest concentration of AAm shows a much stronger response to a field, as the concentration of AAm governs the Young's modulus of ferrogel. A small magnetic field magnetoimpedance sensor prototype with Co68.6Fe3.9Mo3.0Si12.0B12.5 rapidly quenched amorphous ribbon based element was designed aiming to develop a sensor working with a disposable stripe sensitive element. The proposed protocol allowed measurements of the concentration dependence of magnetic particles in gels using magnetoimpedance responses in the presence of magnetite and strontium hexaferrite ferrogels with xanthan. We have discussed the importance of magnetic history for the detection process and demonstrated the importance of remnant magnetization in the case of the gels with large magnetic particles. PMID- 29337919 TI - Functional Impact of the N-terminal Arm of Proline Dehydrogenase from Thermus thermophilus. AB - Proline dehydrogenase (ProDH) is a ubiquitous flavoenzyme that catalyzes the oxidation of proline to Delta1-pyrroline-5-carboxylate. Thermus thermophilus ProDH (TtProDH) contains in addition to its flavin-binding domain an N-terminal arm, consisting of helices alphaA, alphaB, and alphaC. Here, we report the biochemical properties of the helical arm truncated TtProDH variants DeltaA, DeltaAB, and DeltaABC, produced with maltose-binding protein as solubility tag. All three truncated variants show similar spectral properties as TtProDH, indicative of a conserved flavin-binding pocket. DeltaA and DeltaAB are highly active tetramers that rapidly react with the suicide inhibitor N propargylglycine. Removal of the entire N-terminal arm (DeltaABC) results in barely active dimers that are incapable of forming a flavin adduct with N propargylglycine. Characterization of V32D, Y35F, and V36D variants of DeltaAB established that a hydrophobic patch between helix alphaC and helix alpha8 is critical for TtProDH catalysis and tetramer stabilization. PMID- 29337920 TI - Acute Traumatic Endotheliopathy in Isolated Severe Brain Injury and Its Impact on Clinical Outcome. AB - STUDY DESIGN: Prospective observational cohort. OBJECTIVE: To investigate the difference in plasma levels of syndecan-1 (due to glycocalyx degradation) and soluble thrombomodulin (due to endothelial damage) in isolated severe traumatic brain injury (TBI) patients with/without early coagulopathy. A secondary objective was to compare the effects of the degree of TBI endotheliopathy on hospital mortality among patients with TBI-associated coagulopathy (TBI-AC). METHODS: Data was prospectively collected on isolated severe TBI (sTBI) patients with Glasgow Coma Scale (GCS) <=8 less than 12 h after injury admitted to a level I trauma centre. Isolated sTBI patients with samples withdrawn prior to blood transfusion were stratified by conventional coagulation tests as coagulopathic (prothrombin time (PT) >= 16.7 s, international normalized ratio (INR) >= 1.27, and activated partial thromboplastin time (aPTT) >= 28.8 s) and non coagulopathic. Twenty healthy controls were also included. Plasma levels of thrombomodulin and syndecan-1 were estimated by ELISA. With receiver operating characteristic curve (ROC) analysis, we defined endotheliopathy as a syndecan-1 cut-off level that maximized the sum of sensitivity and specificity for predicting TBI-AC. RESULTS: Inclusion criteria were met in 120 cases, with subjects aged 35.5 +/- 12.6 years (88.3% males). TBI-AC was identified in 50 (41.6%) patients, independent of age, gender, and GCS, but there was an association with acidosis (60%; p = 0.01). Following isolated sTBI, we found insignificant changes in soluble thrombomodulin (sTM) levels between patients with isolated TBI and controls, and sTM levels were lower in coagulopathic compared to non-coagulopathic patients. Elevations in plasma syndecan-1 (ng/mL) levels were seen compared to control (31.1(21.5-30.6) vs. 24.8(18.5-30.6); p = 0.08). Syndecan-1(ng/mL) levels were significantly elevated in coagulopathic compared to non-coagulopathic patients (33.7(21.6-109.5) vs. 29.9(19.239.5); p = 0.03). Using ROC analysis (area under the curve = 0.61; 95% Confidence Interval (CI) 0.50 to 0.72), we established a plasma syndecan-1 level cutoff of >=30.5 ng/mL (sensitivity % = 55.3, specificity % = 52.3), with a significant association with TBI-associated coagulopathy. CONCLUSION: Subsequent to brain injury, elevated syndecan-1 shedding and endotheliopathy may be associated with early coagulation abnormalities. A syndecan-1 level >=30.5 ng/mL identified patients with TBI-AC, and may be of importance in guiding management and clinical decision-making. PMID- 29337921 TI - Unified Compact ECC-AES Co-Processor with Group-Key Support for IoT Devices in Wireless Sensor Networks. AB - Security is a critical challenge for the effective expansion of all new emerging applications in the Internet of Things paradigm. Therefore, it is necessary to define and implement different mechanisms for guaranteeing security and privacy of data interchanged within the multiple wireless sensor networks being part of the Internet of Things. However, in this context, low power and low area are required, limiting the resources available for security and thus hindering the implementation of adequate security protocols. Group keys can save resources and communications bandwidth, but should be combined with public key cryptography to be really secure. In this paper, a compact and unified co-processor for enabling Elliptic Curve Cryptography along to Advanced Encryption Standard with low area requirements and Group-Key support is presented. The designed co-processor allows securing wireless sensor networks with independence of the communications protocols used. With an area occupancy of only 2101 LUTs over Spartan 6 devices from Xilinx, it requires 15% less area while achieving near 490% better performance when compared to cryptoprocessors with similar features in the literature. PMID- 29337922 TI - Underdetermined Wideband DOA Estimation for Off-Grid Sources with Coprime Array Using Sparse Bayesian Learning. AB - Sparse Bayesian learning (SBL) is applied to the coprime array for underdetermined wideband direction of arrival (DOA) estimation. Using the augmented covariance matrix, the coprime array can achieve a higher number of degrees of freedom (DOFs) to resolve more sources than the number of physical sensors. The sparse-based DOA estimation can deteriorate the detection and estimation performance because the sources may be off the search grid no matter how fine the grid is. This dictionary mismatch problem can be well resolved by the SBL using fixed point updates. The SBL can automatically choose sparsity and approximately resolve the non-convex optimizaton problem. Numerical simulations are conducted to validate the effectiveness of the underdetermined wideband DOA estimation via SBL based on coprime array. It is clear that SBL can obtain good performance in detection and estimation compared to least absolute shrinkage and selection operator (LASSO), simultaneous orthogonal matching pursuit least squares (SOMP-LS) , simultaneous orthogonal matching pursuit total least squares (SOMP-TLS) and off-grid sparse Bayesian inference (OGSBI). PMID- 29337923 TI - Synergistic Antifungal, Allelopatic and Anti-Proliferative Potential of Salvia officinalis L., and Thymus vulgaris L. Essential Oils. AB - The current study aimed to investigate the chemical composition and the synergistic potential of two essential oils (EOs), as obtained from Salvia officinalis L. (SEO), and Thymus vulgaris L. (TEO). The antifungal potential was tested in vitro against Fusarium graminearum (Fg 06_17), the herbicidal effect was studied using weed seeds of Amaranthus retroflexus (ARET), Chenopodium album (CALB), Echinochloa crus-galli (EGAL), but also wheat seeds (WS) of the Lovrin variety and tomato seeds Saint-Pierre of the variety. The GC-MS profile highlights that the mains compounds identified in SEO were: caryophyllene (25.364%), camphene (14.139%), eucalyptol (13.902%), and beta-pinene (11.230%), while in TEO, the predominant phytochemicals were: gamma-terpinene (68.415%) and p-thymol (24.721%). The results indicated that the tested EOs alone as well as in combination have allelopathic effect against investigated seeds, while the synergistic effect of TEO and SEO in terms of fungal growth was demonstrated at a level of 0.06%. Thyme and sage EOs exhibited in vitro anti-proliferative activity on two melanoma cell lines, namely A375 human melanoma and B164A5 mouse melanoma alone, as well as in combination. SEO was most effective in terms of decreasing the cell viability of murine and human melanoma cell lines when compared to TEO. PMID- 29337924 TI - Effect of Humid Aging on the Oxygen Adsorption in SnO2 Gas Sensors. AB - To investigate the effect of aging at 580 degrees C in wet air (humid aging) on the oxygen adsorption on the surface of SnO2 particles, the electric properties and the sensor response to hydrogen in dry and humid atmospheres for SnO2 resistive-type gas sensors were evaluated. The electric resistance in dry and wet atmospheres at 350 degrees C was strongly increased by humid aging. From the results of oxygen partial pressure dependence of the electric resistance, the oxygen adsorption equilibrium constants (K1; for O- adsorption, K2; for O2- adsorption) were estimated on the basis of the theoretical model of oxygen adsorption. The K1 and K2 in dry and wet atmospheres at 350 degrees C were increased by humid aging at 580 degrees C, indicating an increase in the adsorption amount of both O- and O2-. These results suggest that hydroxyl poisoning on the oxygen adsorption is suppressed by humid aging. The sensor response to hydrogen in dry and wet atmosphere at 350 degrees C was clearly improved by humid aging. Such an improvement of the sensor response seems to be caused by increasing the oxygen adsorption amount. Thus, the humid aging offers an effective way to improve the sensor response of SnO2 resistive-type gas sensors in dry and wet atmospheres. PMID- 29337927 TI - The Plant Growth-Promoting Fungus (PGPF) Alternaria sp. A13 Markedly Enhances Salvia miltiorrhiza Root Growth and Active Ingredient Accumulation under Greenhouse and Field Conditions. AB - Plant growth-promoting fungi (PGPF) have attracted considerable interest as bio fertilisers due to their multiple beneficial effects on plant quantity and quality and their positive relationship with the ecological environment. Advancements in the development of PGPF for crops and economic plant cultivation applications have been achieved, but such improvements for the use of PGPF with popular medicinal herbs, such as Salvia miltiorrhiza, are rare. In this study, we collected S. miltiorrhiza specimens inhabiting wild, semi-wild, farmland and pot cultured areas in the Henan province of China and isolated endophytes from the roots, shoots and leaves of these samples. Twenty-eight strains of the dominant genus Alternaria were identified and selected as candidate PGPF. Under greenhouse conditions, Alternaria sp. A13 simultaneously enhanced the dry root biomass and secondary metabolite accumulation of S. miltiorrhiza as the optimal PGPF of the 28 candidate isolates. To further assess the interaction between S. miltiorrhiza and Alternaria sp. A13, the effects on seedlings growth, active ingredient accumulation, and the activity of key enzymes for effective biosynthetic pathways were investigated over a period of six months under field conditions. Compared to uninoculated seedlings, S. miltiorrhiza seedlings colonised by Alternaria sp. A13 showed significant increment of 140% in fresh weight, 138% in dry weight, and enhancement in the contents of total phenolic acid, lithospermic acids A and B (LAA and LAB, respectively) of 210%, 128% and 213%, respectively. Examination of the related enzyme activities showed that the elicitation effect of A13 on LAB accumulation correlated with cinnamic acid 4-hydroxylase (C4H) activity in the phenylpropanoid pathway under field conditions. Our results confirmed that Alternaria sp. A13 not only contributes to the stimulation of S. miltiorrhiza root growth, but also boosts the secondary metabolism, thus demonstrating its application potential as a bio-fertiliser for S. miltiorrhiza cultivation, especially in areas outside of its native growth regions. PMID- 29337925 TI - Plant Secondary Metabolites as Anticancer Agents: Successes in Clinical Trials and Therapeutic Application. AB - Cancer is a multistage process resulting in an uncontrolled and abrupt division of cells and is one of the leading causes of mortality. The cases reported and the predictions for the near future are unthinkable. Food and Drug Administration data showed that 40% of the approved molecules are natural compounds or inspired by them, from which, 74% are used in anticancer therapy. In fact, natural products are viewed as more biologically friendly, that is less toxic to normal cells. In this review, the most recent and successful cases of secondary metabolites, including alkaloid, diterpene, triterpene and polyphenolic type compounds, with great anticancer potential are discussed. Focusing on the ones that are in clinical trial development or already used in anticancer therapy, therefore successful cases such as paclitaxel and homoharringtonine (in clinical use), curcumin and ingenol mebutate (in clinical trials) will be addressed. Each compound's natural source, the most important steps in their discovery, their therapeutic targets, as well as the main structural modifications that can improve anticancer properties will be discussed in order to show the role of plants as a source of effective and safe anticancer drugs. PMID- 29337928 TI - Protective Factors in the Inuit Population of Nunavut: A Comparative Study of People Who Died by Suicide, People Who Attempted Suicide, and People Who Never Attempted Suicide. AB - Epidemiological data shows an alarming prevalence of suicide in Aboriginal populations around the world. In Canada, the highest rates are found in Inuit communities. In this article, we present the findings of a secondary analysis conducted with data previously collected as part of a larger study of psychological autopsies conducted in Nunavut, Canada. The objective of this secondary analysis was to identify protective factors in the Inuit population of Nunavut by comparing people who died by suicide, people from the general population who attempted suicide, and people from the general population who never attempted suicide. This case-control study included 90 participants, with 30 participants in each group who were paired by birth date, sex, and community. Content analysis was first conducted on the clinical vignettes from the initial study in order to codify the presence of protective variables. Then, inferential analyses were conducted to highlight differences between each group in regards to protection. Findings demonstrated that (a) people with no suicide attempt have more protective variables throughout their lifespan than people who died by suicide and those with suicide attempts within the environmental, social, and individual dimensions; (b) people with suicide attempts significantly differ from the two other groups in regards to the use of services; and (c) protective factors that stem from the environmental dimension show the greatest difference between the three groups, being significantly more present in the group with no suicide attempt. Considering these findings, interventions could focus on enhancing environmental stability in Inuit communities as a suicide prevention strategy. PMID- 29337929 TI - Integrated Analyses Reveal Overexpressed Notch1 Promoting Porcine Satellite Cells' Proliferation through Regulating the Cell Cycle. AB - Notch signaling as a conserved cell fate regulator is involved in the regulation of cell quiescence, proliferation, differentiation and postnatal tissue regeneration. However, how Notch signaling regulates porcine satellite cells (PSCs) has not been elucidated. We stably transfected Notch1 intracellular domain (N1ICD) into PSCs to analyze the gene expression profile and miRNA-seq. The analysis of the gene expression profile identified 295 differentially-expressed genes (DEGs) in proliferating-N1ICD PSCs (P-N1ICD) and nine DEGs on differentiating-N1ICD PSCs (D-N1ICD), compared with that in control groups (P Control and D-Control, respectively). Analyzing the underlying function of DEGs showed that most of the upregulated DEGs enriched in P-N1ICD PSCs are related to the cell cycle. Forty-four and 12 known differentially-expressed miRNAs (DEMs) were identified in the P-N1ICD PSCs and D-N1ICD PSCs group, respectively. Furthermore, we constructed the gene-miRNA network of the DEGs and DEMs. In P N1ICD PSCs, miR-125a, miR-125b, miR-10a-5p, ssc-miR-214, miR-423 and miR-149 are downregulated hub miRNAs, whose corresponding hub genes are marker of proliferation Ki-67 (MKI67) and nuclear receptor binding SET domain protein 2 (WHSC1). By contrast, miR-27a, miR-146a-5p and miR-221-3p are upregulated hub miRNAs, whose hub genes are RUNX1 translocation partner 1 (RUNX1T1) and fibroblast growth factor 2 (FGF2). All the hub miRNAs and genes are associated with cell proliferation. Quantitative RT-PCR results are consistent with the gene expression profile and miRNA-seq results. The results of our study provide valuable information for understanding the molecular mechanisms underlying Notch signaling in PSCs and skeletal muscle development. PMID- 29337931 TI - Real Time Spectroscopic Ellipsometry Analysis of First Stage CuIn1-xGaxSe2 Growth: Indium-Gallium Selenide Co-Evaporation. AB - Real time spectroscopic ellipsometry (RTSE) has been applied for in-situ monitoring of the first stage of copper indium-gallium diselenide (CIGS) thin film deposition by the three-stage co-evaporation process used for fabrication of high efficiency thin film photovoltaic (PV) devices. The first stage entails the growth of indium-gallium selenide (In1-xGax)2Se3 (IGS) on a substrate of Mo coated soda lime glass maintained at a temperature of 400 degrees C. This is a critical stage of CIGS deposition because a large fraction of the final film thickness is deposited, and as a result precise compositional control is desired in order to achieve the optimum performance of the resulting CIGS solar cell. RTSE is sensitive to monolayer level film growth processes and can provide accurate measurements of bulk and surface roughness layer thicknesses. These in turn enable accurate measurements of the bulk layer optical response in the form of the complex dielectric function epsilon = epsilon1 - iepsilon2, spectra. Here, RTSE has been used to obtain the (epsilon1, epsilon2) spectra at the measurement temperature of 400 degrees C for IGS thin films of different Ga contents (x) deduced from different ranges of accumulated bulk layer thickness during the deposition process. Applying an analytical expression in common for each of the (epsilon1, epsilon2) spectra of these IGS films, oscillator parameters have been obtained in the best fits and these parameters in turn have been fitted with polynomials in x. From the resulting database of polynomial coefficients, the (epsilon1, epsilon2) spectra can be generated for any composition of IGS from the single parameter, x. The results have served as an RTSE fingerprint for IGS composition and have provided further structural information beyond simply thicknesses, for example information related to film density and grain size. The deduced IGS structural evolution and the (epsilon1, epsilon2) spectra have been interpreted as well in relation to observations from scanning electron microscopy, X-ray diffractometry and energy-dispersive X-ray spectroscopy profiling analyses. Overall the structural, optical and compositional analysis possible by RTSE has assisted in understanding the growth and properties of three stage CIGS absorbers for solar cells and shows future promise for enhancing cell performance through monitoring and control. PMID- 29337933 TI - Porpoise-Driven Life. PMID- 29337930 TI - Asbestos-Related Disorders in Germany: Background, Politics, Incidence, Diagnostics and Compensation. AB - There was some limited use of asbestos at end of the 19th century in industrialized countries including Germany, but its consumption dramatically increased after World War II. The increase in use and exposure was followed by the discovery of high numbers of asbestos-related diseases with a mean latency period of about 38 years in Germany. The strong socio-political pressure from the asbestos industry, its affiliated scientists and physicians has successfully hindered regulatory measures and an asbestos ban for many years; a restrictive stance that is still being unravelled in compensation litigation. This national experience is compared with the situation in other industrialized countries and against the backdrop of the constant efforts of the WHO to eliminate asbestos related diseases worldwide. PMID- 29337932 TI - High Number of Circulating Tumor Cells Predicts Poor Survival of Cutaneous Melanoma Patients in China. AB - BACKGROUND Melanoma is an aggressive cancer with complex etiology and poor prognosis. Surgical resection is still the primary treatment of melanoma, but shows limited efficacy in late-stage patients. Additionally, reliable prognostic markers of skin melanoma patients are still lacking. Circulating tumor cells (CTCs) have shown promise in predicting prognosis of multiple cancers. Evaluating the prognostic value of CTC number in melanoma patients. MATERIAL AND METHODS CTCs were isolated by immunomagnetic capture from 7.5-mL samples of blood from 100 patients with cutaneous melanoma. Baseline CTC number (pre-treatment) and post-treatment CTC number were measured. Baseline CTC number and CTC number alteration were correlated with clinicopathological features and survival. RESULTS Forty-three (43%) patients had more than 6 CTCs, whereas 57 (57%) had 6 cells or less. High baseline CTC count was associated with deep local invasion, lymph node metastasis, and distance metastasis, with P value of 0.003, 0.047, and 0.034, respectively. High baseline CTC count was also correlated with short overall survival time and was considered as an independent prognostic factor (P value=0.012, hazard ratio=2.262). CTC cell alteration was associated with progression-free survival and disease-specific survival (with P values of 0.012 and 0.009, respectively). CONCLUSIONS Baseline CTC count was correlated with adverse pathological features and was predictive of survival in melanoma patients. Alteration of CTC count before and after treatment was an indicator of therapy response and prognosis. Measuring the baseline and post-treatment CTC counts is a powerful tool in monitoring melanoma progression, drug response, and survival. PMID- 29337934 TI - Depths of Space, Oceans and Politics. PMID- 29337936 TI - Recommended. PMID- 29337935 TI - Salmon Sex Moves Mountains. PMID- 29337937 TI - Bee Sides. PMID- 29337938 TI - A Universal Flu Vaccine Is Vital. PMID- 29337939 TI - Greener Skies. PMID- 29337941 TI - Letters. PMID- 29337940 TI - Go Public or Perish. PMID- 29337942 TI - Rivers of Plastic. PMID- 29337943 TI - Troubled Waters. PMID- 29337944 TI - The First Monster Black Holes. PMID- 29337945 TI - The End of Night. PMID- 29337946 TI - Misled Penguins. PMID- 29337947 TI - Guardian Dogs of the Mongolian Steppe. PMID- 29337948 TI - [Redacted]. PMID- 29337949 TI - The Robotic Artist Problem. PMID- 29337950 TI - Quick Hits. PMID- 29337951 TI - Fruitless Foragers. PMID- 29337952 TI - Vanquishing Diabetes. PMID- 29337953 TI - Diamond in the Rough. PMID- 29337954 TI - Wearable Data. PMID- 29337955 TI - Are Smartphones Really Destroying the Adolescent Brain? PMID- 29337956 TI - Why Fake Operations Are a Good Thing. PMID- 29337957 TI - Moon Shot. PMID- 29337958 TI - 50, 100 &150 Years Ago. PMID- 29337959 TI - The Tribalism of Truth. PMID- 29337960 TI - Alvy's Error and the Meaning of Life. PMID- 29337961 TI - How the evolution of multicellularity set the stage for cancer. AB - Neoplastic growth and many of the hallmark properties of cancer are driven by the disruption of molecular networks established during the emergence of multicellularity. Regulatory pathways and molecules that evolved to impose regulatory constraints upon networks established in earlier unicellular organisms enabled greater communication and coordination between the diverse cell types required for multicellularity, but also created liabilities in the form of points of vulnerability in the network that when mutated or dysregulated facilitate the development of cancer. These factors are usually overlooked in genomic analyses of cancer, but understanding where vulnerabilities to cancer lie in the networks of multicellular species would provide important new insights into how core molecular processes and gene regulation change during tumourigenesis. We describe how the evolutionary origins of genes influence their roles in cancer, and how connections formed between unicellular and multicellular genes that act as key regulatory hubs for normal tissue homeostasis can also contribute to malignant transformation when disrupted. Tumours in general are characterised by increased dependence on unicellular processes for survival, and major dysregulation of the control structures imposed on these processes during the evolution of multicellularity. Mounting molecular evidence suggests altered interactions at the interface between unicellular and multicellular genes play key roles in the initiation and progression of cancer. Furthermore, unicellular network regions activated in cancer show high degrees of robustness and plasticity, conferring increased adaptability to tumour cells by supporting effective responses to environmental pressures such as drug exposure. Examining how the links between multicellular and unicellular regions get disrupted in tumours has great potential to identify novel drivers of cancer, and to guide improvements to cancer treatment by identifying more effective therapeutic strategies. Recent successes in targeting unicellular processes by novel compounds underscore the logic of such approaches. Further gains could come from identifying genes at the interface between unicellular and multicellular processes and manipulating the communication between network regions of different evolutionary ages. PMID- 29337962 TI - The relationship between right-sided tumour location, tumour microenvironment, systemic inflammation, adjuvant therapy and survival in patients undergoing surgery for colon and rectal cancer. AB - BACKGROUND: There has been an increasing interest in the role of tumour location in the treatment and prognosis of patients with colorectal cancer (CRC), specifically in the adjuvant setting. Together with genomic data, this has led to the proposal that right-sided and left-sided tumours should be considered as distinct biological and clinical entities. The aim of the present study was to examine the relationship between tumour location, tumour microenvironment, systemic inflammatory response (SIR), adjuvant chemotherapy and survival in patients undergoing potentially curative surgery for stage I-III colon and rectal cancer. METHODS: Clinicopathological characteristics were extracted from a prospective database. MMR and BRAF status was determined using immunohistochemistry. The tumour microenvironment was assessed using routine H&E pathological sections. SIR was assessed using modified Glasgow Prognostic Score (mGPS), neutrophil:lymphocyte ratio (NLR), neutrophil:platelet score (NPS) and lymphocyte:monocyte ratio (LMR). RESULTS: Overall, 972 patients were included. The majority were over 65 years (68%), male (55%), TNM stage II/III (82%). In all, 40% of patients had right-sided tumours and 31% had rectal cancers. Right sided tumour location was associated with older age (P=0.001), deficient MMR (P=0.005), higher T stage (P<0.001), poor tumour differentiation (P<0.001), venous invasion (P=0.021), and high CD3+ within cancer cell nests (P=0.048). Right-sided location was consistently associated with a high SIR, mGPS (P<0.001) and NPS (P<0.001). There was no relationship between tumour location, adjuvant chemotherapy (P=0.632) or cancer-specific survival (CSS; P=0.377). In those 275 patients who received adjuvant chemotherapy, right-sided location was not associated with the MMR status (P=0.509) but was associated with higher T stage (P=0.001), venous invasion (P=0.036), CD3+ at the invasive margin (P=0.033) and CD3+ within cancer nests (P=0.012). There was no relationship between tumour location, SIR or CSS in the adjuvant group. CONCLUSIONS: Right-sided tumour location was associated with an elevated tumour lymphocytic infiltrate and an elevated SIR. There was no association between tumour location and survival in the non-adjuvant or adjuvant setting in patients undergoing potentially curative surgery for stage I-III colon and rectal cancer. PMID- 29337964 TI - Cancer therapy: A path of DSF destruction. PMID- 29337963 TI - Phase I open-label study of afatinib plus vinorelbine in patients with solid tumours overexpressing EGFR and/or HER2. AB - BACKGROUND: This phase Ib study evaluated afatinib plus vinorelbine in patients with advanced solid tumours overexpressing epidermal growth factor receptor (EGFR) and/or human EGFR 2 (HER2). METHODS: Maximum tolerated doses (MTDs) were determined for afatinib (20, 40 or 50 mg, once daily) combined with standard intravenous vinorelbine (part A; 25 mg m-2 per week) or oral vinorelbine (part B; 60 mg m-2 per week, increased to 80 mg m-2 per week at week 3). Secondary end points for expanded MTD cohorts included assessments of safety, pharmacokinetics, tumour response and progression-free survival (PFS). RESULTS: The afatinib MTD was 40 mg with intravenous (MTDA) and oral (MTDB) vinorelbine. The most frequent cycle 1 dose-limiting toxicities were febrile neutropenia and diarrhoea, consistent with individual safety profiles of vinorelbine and afatinib. Common treatment-related adverse events included: diarrhoea (92.7%), asthenia (76.4%), nausea (63.6%), neutropenia (56.4%) and vomiting (54.5%). No notable pharmacokinetic interactions were observed. Best overall tumour response was stable disease in part A (16 out of 28 patients), and partial response in part B (3 out of 27 patients). Median PFS was 14.6 and 15.9 weeks for patients treated at the MTDA and MTDB, including dose-escalation and expansion cohorts. CONCLUSIONS: Afatinib in combination with intravenous or oral vinorelbine demonstrated a manageable safety profile and antitumour activity at the MTD of 40 mg per day. PMID- 29337965 TI - Synthetic biology: License to kill. PMID- 29337966 TI - Drug development: Allosteric inhibitors hit USP7 hard. PMID- 29337967 TI - Errata: Continuous directed evolution of aminoacyl-tRNA synthetases. AB - This corrects the article DOI: 10.1038/nchembio.2474. PMID- 29337968 TI - RNA Splicing: Making the cut. PMID- 29337969 TI - Toward an orthogonal central dogma. PMID- 29337970 TI - Cell biology: Eaten up from the inside. PMID- 29337971 TI - Plant hormones: Metabolic end run to jasmonate. PMID- 29337972 TI - Natural products: Tapping into personalized chemistry. PMID- 29337973 TI - Visual perception of the osseous labyrinth rendered from micro-CT scans of the petrous bone. AB - Grayscale images comparing to the color images may have less of visual information necessary for easy recognition of the anatomical structures. Although micro-CT scanners deliver images of ultra-high resolution, application of false colors to the rendered structures enhance their visual perception and allow for quick delineation between them and surrounding bony matrix. This paper presents differences of imaging of the osseous structures of the inner ear labyrinth using pseudo-color volume rendering in contrast to grayscale volume rendering of the micro-CT data. Applied procedures of image processing improved significantly delineation between the bony matrix surrounding the cochlea and vestibule rendered in the pseudo-colors than in grayscale. PMID- 29337974 TI - Ferric reducing ability of plasma and assessment of selected plasma antioxidants in adults with celiac disease. AB - INTRODUCTION: Oxidative stress with an excessive free radical production and a reduction in the activity of protective antioxidants is considered as one of the mechanisms responsible for gluten toxicity. However, its role in celiac disease (CD) is unclear. OBJECTIVES: Evaluation of plasma nonenzymatic antioxidant capacity in patients with CD (both untreated patients and those receiving gluten free diet [GFD]) by measuring the ferric reducing ability of plasma (FRAP) as well as assessing selected plasma antioxidants. PATIENTS AND METHODS: The study included 169 adult patients: 48 patients with untreated active CD, 72 patients with CD on a GFD, and 49 healthy controls. In each group, we measured the serum levels of selected antioxidants (uric acid, bilirubin, albumin, and vitamin E) and used the FRAP assay to assess the total antioxidant capacity (TAC) of plasma. In each patient, serological and histopathological activity of CD was also evaluated. RESULTS: There were no significant differences in the TAC of plasma measured with the FRAP assay between the study groups. Patients with CD had higher uric acid levels compared with controls (p <0.001), while bilirubin levels were lower in patients with active disease than in controls (p <0.05). Serum vitamin E levels were lower in all patients with CD compared with controls (p <0.01). CONCLUSIONS: The FRAP assay is not the method of choice for assessing the TAC of plasma in patients with CD. Owing to high serum uric acid levels, the FRAP assay results in these patients may be overestimated despite the reduced levels of other plasma antioxidants. PMID- 29337975 TI - Emotional states and sleep disorders in adolescent and young adult cystic fibrosis patients. AB - The aim of the study was to evaluate level of anxiety, depression and aggression and the sleep quality among Polish adolescent and young adult suffering from cystic fibrosis including the evaluation of their FEV1. The study involved 70 patients both male and female aged between 14 and 25 and suffering from cystic fibrosis. Anxiety, depression and aggression were evaluated by means of Hospital Anxiety and Depression Scale and the quality of sleep was examined following Athens Insomnia Scale another aspect taken into consideration was patients' FEV1. The data analysis was carried out by means of Chi2, Kolmogorov-Smirnov test, Student's t-test, Fisher-Snedecor test, Pearson correlation coeficient. The level of statistical significance was set at p <0.05. Anxiety was observed in 27 (38.6%) cases, depression in 17 (24.3%) and aggression in 46 (65.7%) cases. Anxiety (p = 0.017) and aggression (p = 0.004) were significantly higher among women than among men. 37 (52.8%) patients reported sleep disorders. The findings proved that there is a connection between the quality of sleep and anxiety (r = 0.631; p = 0.000), depression (r = 0.621; p = 0.000) and aggression (r = 0.293; p = 0.014). No significant relationship was found between the quality of sleep and patients' expiratory volume. Emotional disorders such as anxiety, depression and aggression as well as sleep disorders are commonly reported in patients suffering from cystic fibrosis. PMID- 29337976 TI - Ludwik Karol Teichmann (1823-1895). AB - Ludwik Karol Teichmann was the last of gross anatomists. His magnificent work on the lymphatic system gained him appreciation of the whole current scientific world. Based on the unpublished materials authors wanted to commemorate one of the greatest Polish and world anatomists with special regard to coming soon 150th anniversary of Theatrum Anatomicum of Jagiellonian University Medical College. PMID- 29337977 TI - Canaliform median raphe cysts (MRCs) lined by squamous epithelium in a 5 year old male patient; report of a rare case and comprehensive review of the literature. AB - : Median raphe cysts (MRCs) are rare, benign congenital lesions of unknown origin, that can be found anywhere on the ventral side of the genital area, between the urethral meatus and the anus. The rarity of our case is attributed to the canaliform type, the scrotal and perineal localization and the epidermoid epithelium. A 5 year old boy, with free perinatal and family history, was admitted to our department as an outpatient due to the presence of an elongated and mildly painful lesion in the middle of the scrotum, gradually increasing in size. During physical examination the presence of a painful, subcutaneous, yellowish lesion, extending from the scrotal to the perineal raphe, was documented. Patient underwent elective surgery, under general endotracheal anesthesia, and complete resection of the lesion was conducted. Histopathological examination revealed the presence of a canaliform lesion consisting of five cysts, lined by squamous epithelium and filled with lamellate keratin. IN CONCLUSION: a) preventive removal of MRCs is considered as the safest treatment option, in order to be avoided future, potential complications regarding urination and sexual intercourse, b) if therapeutic intervention is delayed, especially a er development of inflammation of MRCs, then the likelihood both of iatrogenic injury to underlying structures, mainly to the penile or perineal urethra, and of relapse a er resection increases significantly and c) if orchidopexy precedes the development of MRCs, the possibility of presence of ovarian serous border line tumor with Mullerian duct remnants should always be excluded. PMID- 29337978 TI - Penetration of formaldehyde based fixatives into heart. AB - OBJECTIVES: To investigate the penetration depth of formaldehyde-based fixatives into cardiac muscle samples over the course of fixation. BACKGROUND: Fixation is the essential step in anatomical studies. However, very little is known about penetration of most common fixatives into cardiac tissue. METHODS: A total of 40 heart samples were investigated. 4 study groups (n=10 in each case) were formed in such manner they differed only in concentration and type of fixative (1) - 2% formaldehyde phosphate-buffered solution (FPBS); (2) - 4% FPBS (formalin); (3) - 10% FPBS; (4) - alcoholic formalin. Samples were measured before fixation and in the following time points: 24 hours, 72 hours, 168 hours. RESULTS: The penetration depth differed significantly among studied fixatives (p<0.0001). 100% penetration occurred in all samples after 72 hours in alcoholic formalin solution and after 168 hours in 10% FPBS. After alcoholic formalin fixation, the tissue is more brittle and sub-epicardial blisters were observed in some cases. CONCLUSIONS: Alcoholic formalin solution is the fastest fixative among the studied ones, however it has several adverse effects on tissue structure. It was found that 10% FPBS is the best and a relatively fast fixative for cardiac morphometric studies. PMID- 29337979 TI - Analysis of pain and painless symptoms in temporomandibular joints dysfunction in adult patients. AB - : Recent years have shown an increase in the number of patients reporting for treatment of pain due to musculoskeletal joint, associated with temporomandibular joint dysfunction. Therefore, studies were undertaken, aimed at analyzing the symptoms of the dysfunction, because of which patients come to the prosthetic treatment. Aim of the thesis: The aim of the study was a retrospective analysis of symptoms of temporomandibular joint dysfunction reported by patients diagnosed with this problem. MATERIAL AND METHODS: The research material was a retrospective medical records of 120 patients, aged 19 to 45 years who have taken prosthetic treatment due to temporomandibular joint dysfunction in the Consulting Room in Prosthetics Department in Krakow, from June 2015 to December 2016. During the test patients, in addition to interviewing a physician, completed a personal survey in their own study. The material has been divided into I group of patients who reported pain form of dysfunction and II group, who had no symptoms of pain within the stomatognatic system. The analysis covered type of symptoms, the share of local factors (para-functions) and systemic, as well as the time a er which the patients reported for the treatment of functional disorders since the appearance of the first symptoms. RESULTS AND CONCLUSIONS: Analysis of the research material showed that the main reason for reporting patients was pain in one or both temporal joints of significant intensity (5 to 8 in VAS scale,) accompanied by acoustic symptoms. A large group of questioners reported problems with the range of jaw movement and head and face pain, as well as subjective symptoms from the auditory, sight, neck, neck and shoulder areas. PMID- 29337980 TI - The quantitative evaluation of the immunohistochemical expression of the pituitary adenomas. AB - BACKGROUND: The aim of this study was to evaluate morphometrically the pituitary adenomas immunoexpression. METHODS: The cases of 72 patients were analyzed, who underwent transsphenoidal surgery for pituitary adenomas. Subsequently, the immunohistochemical pituitary hormone panel was applied including alpha- subunit of the glycoprotein hormones. Immunohistochemical sections were analyzed quantitatively with the help of morphometric grid. The percentage rate of the immunoexpression was calculated separately for every single hormone. RESULTS: As a result, 22 monohormonal adenomas (30.56%), 21 plurihormonal adenomas (29.17%), 21 immunonegative adenomas (29.17%) and 8 unreliable cases (11.11%) were recognized. The immunopositivity for particular hormones was found as follows: PRL and GH (25% each), alpha-SU (22.22%), ACTH (13.89%), LH and FSH (12.5% each), and TSH (5.56%). An average percentage of immunoexpression in each positive staining groups occurred as follows: for PRL - 59.98%, for GH - 53.97%, for ACTH 39.21%, for TSH - 25.05%, for LH - 37.3%, for FSH - 54.66%, for alpha-SU - 45.71. CONCLUSION: The morphometrical method utilizing the immunoexpression index introduced in this study provided a very precise recognition of pituitary adenomas pathology. This method may limit the subjectivity of a single researcher and enable better comparison of the studies. The plurihormonality is a common phenomenon, and immunohistochemical staining for all adenohypophyseal hormones is obligatory in order to classify pituitary adenomas correctly. The awareness of an operating neurosurgeon of the importance of meticulous collecting histopathological material, especially in microadenoma cases, has essential impact on further neuropathological evaluation and possibility of immunohistochemical staining. PMID- 29337981 TI - HSV encephalitis: is the insight of the clinician still crucial for the outcome? AB - Herpes simplex virus (HSV) encephalitis is an acute infection of the Central Nervous System (CNS). During the last two decades its incidence has a ten-fold increase, while mortality rate exceeds 70%, if left undiagnosed and thus untreated. Clinical manifestations, imaging studies, cerebrospinal fluid (CSF) analysis and electroencephalogram (EEG) are the basis of diagnostic approach. Even when CSF analysis seems normal, imaging studies are not specific and HSV polymerase chain reaction (PCR) test is negative, the clinician should be more aggressive, if clinical presentation is indicative for HSV encephalitis, by administrating acyclovir early after patient's admission. The aim of this short review article, after systematic research of the relevant up to date literature, is to emphasize the insight of the clinician as for the early diagnosis and the prompt therapeutic intervention, which are crucial for the outcome and vital for the affected patient. PMID- 29337982 TI - The efficacy of cardiopulmonary resuscitation, in a large city, based on Krakow's Emergency Medical Service. AB - INTRODUCTION: For many years, one of the biggest challenges of public healthcare system, in the European Union are cardiovascular diseases. PURPOSE: The purpose of this study was to analyze the variables influencing the specific aspects of the chain of survival in a large city. METHODS: Patients included in this study had to fulfill all of the following criteria: (1) patient had to experience an out-of-hospital cardiac arrest (OHCA), (2) emergency medical team had to initiate cardio-pulmonary resuscitation (CPR) at the site of the event. Data were collected from the 1st of January to the 31st of December 2004. RESULT: In a time period from the 1st of January to the 31st of December 2004 emergency medical teams initiated 381 resuscitations. The incidence of OHCA in which CRP was initiated was 50 events / 100 000 habitants. Spontaneous circulation was achieved in 163 patients (42.8%). Thirty-day after the resuscitation 62 patients (16.3%) were alive, and 52 patients (13.6%) were discharged alive from the hospital. CONCLUSIONS: Analysis of collected data shows that return of spontaneous circulation (ROSC) was achieved in 42.8% of patients, 16.3% survived at least 30 days following the event, and 13.6% of patients were discharged alive from the hospital. These results are similar to findings from different studies conducted in Poland. PMID- 29337983 TI - Wor1 establishes opaque cell fate through inhibition of the general co-repressor Tup1 in Candida albicans. AB - The pathogenic fungus Candida albicans can undergo phenotypic switching between two heritable states: white and opaque. This phenotypic plasticity facilitates its colonization in distinct host niches. The master regulator WOR1 is exclusively expressed in opaque phase cells. Positive feedback regulation by Wor1 on the WOR1 promoter is essential for opaque formation, however the underlying mechanism of how Wor1 functions is not clear. Here, we use tandem affinity purification coupled with mass spectrometry to identify Wor1-interacting proteins. Tup1 and its associated complex proteins are found as the major factors associated with Wor1. Tup1 occupies the same regions of the WOR1 promoter as Wor1 preferentially in opaque cells. Loss of Tup1 is sufficient to induce the opaque phase, even in the absence of Wor1. This is the first such report of a bypass of Wor1 in opaque formation. These genetic analyses suggest that Tup1 is a key repressor of the opaque state, and Wor1 functions via alleviating Tup1 repression at the WOR1 promoter. Opaque cells convert to white en masse at 37 degrees C. We show that this conversion occurs only in the presence of glycolytic carbon sources. The opaque state is stabilized when cells are cultured on non-glycolytic carbon sources, even in a MTLa/alpha background. We further show that temperature and carbon source affect opaque stability by altering the levels of Wor1 and Tup1 at the WOR1 promoter. We propose that Wor1 and Tup1 form the core regulatory circuit controlling the opaque transcriptional program. This model provides molecular insights on how C. albicans adapts to different host signals to undergo phenotypic switching for colonization in distinct host niches. PMID- 29337984 TI - Anteroposterior axis patterning by early canonical Wnt signaling during hemichordate development. AB - The Wnt family of secreted proteins has been proposed to play a conserved role in early specification of the bilaterian anteroposterior (A/P) axis. This hypothesis is based predominantly on data from vertebrate embryogenesis as well as planarian regeneration and homeostasis, indicating that canonical Wnt (cWnt) signaling endows cells with positional information along the A/P axis. Outside of these phyla, there is strong support for a conserved role of cWnt signaling in the repression of anterior fates, but little comparative support for a conserved role in promotion of posterior fates. We further test the hypothesis by investigating the role of cWnt signaling during early patterning along the A/P axis of the hemichordate Saccoglossus kowalevskii. We have cloned and investigated the expression of the complete Wnt ligand and Frizzled receptor complement of S. kowalevskii during early development along with many secreted Wnt modifiers. Eleven of the 13 Wnt ligands are ectodermally expressed in overlapping domains, predominantly in the posterior, and Wnt antagonists are localized predominantly to the anterior ectoderm in a pattern reminiscent of their distribution in vertebrate embryos. Overexpression and knockdown experiments, in combination with embryological manipulations, establish the importance of cWnt signaling for repression of anterior fates and activation of mid-axial ectodermal fates during the early development of S. kowalevskii. However, surprisingly, terminal posterior fates, defined by posterior Hox genes, are unresponsive to manipulation of cWnt levels during the early establishment of the A/P axis at late blastula and early gastrula. We establish experimental support for a conserved role of Wnt signaling in the early specification of the A/P axis during deuterostome body plan diversification, and further build support for an ancestral role of this pathway in early evolution of the bilaterian A/P axis. We find strong support for a role of cWnt in suppression of anterior fates and promotion of mid-axial fates, but we find no evidence that cWnt signaling plays a role in the early specification of the most posterior axial fates in S. kowalevskii. This posterior autonomy may be a conserved feature of early deuterostome axis specification. PMID- 29337985 TI - Increased risk of ischemic heart disease, hypertension, and type 2 diabetes in women with previous gestational diabetes mellitus, a target group in general practice for preventive interventions: A population-based cohort study. AB - BACKGROUND: Gestational diabetes mellitus (GDM) is associated with developing type 2 diabetes, but very few studies have examined its effect on developing cardiovascular disease. METHODS AND FINDINGS: We conducted a retrospective cohort study utilizing a large primary care database in the United Kingdom. From 1 February 1990 to 15 May 2016, 9,118 women diagnosed with GDM were identified and randomly matched with 37,281 control women by age and timing of pregnancy (up to 3 months). Adjusted incidence rate ratios (IRRs) with 95% confidence intervals (CIs) were calculated for cardiovascular risk factors and cardiovascular disease. Women with GDM were more likely to develop type 2 diabetes (IRR = 21.96; 95% CI 18.31-26.34) and hypertension (IRR = 1.85; 95% CI 1.59-2.16) after adjusting for age, Townsend (deprivation) quintile, body mass index, and smoking. For ischemic heart disease (IHD), the IRR was 2.78 (95% CI 1.37-5.66), and for cerebrovascular disease 0.95 (95% CI 0.51-1.77; p-value = 0.87), after adjusting for the above covariates and lipid-lowering medication and hypertension at baseline. Follow-up screening for type 2 diabetes and cardiovascular risk factors was poor. Limitations include potential selective documentation of severe GDM for women in primary care, higher surveillance for outcomes in women diagnosed with GDM than control women, and a short median follow-up postpartum period, with a small number of outcomes for IHD and cerebrovascular disease. CONCLUSIONS: Women diagnosed with GDM were at very high risk of developing type 2 diabetes and had a significantly increased incidence of hypertension and IHD. Identifying this group of women in general practice and targeting cardiovascular risk factors could improve long-term outcomes. PMID- 29337986 TI - The E2.65A mutation disrupts dynamic binding poses of SB269652 at the dopamine D2 and D3 receptors. AB - The dopamine D2 and D3 receptors (D2R and D3R) are important targets for antipsychotics and for the treatment of drug abuse. SB269652, a bitopic ligand that simultaneously binds both the orthosteric binding site (OBS) and a secondary binding pocket (SBP) in both D2R and D3R, was found to be a negative allosteric modulator. Previous studies identified Glu2.65 in the SBP to be a key determinant of both the affinity of SB269652 and the magnitude of its cooperativity with orthosteric ligands, as the E2.65A mutation decreased both of these parameters. However, the proposed hydrogen bond (H-bond) between Glu2.65 and the indole moiety of SB269652 is not a strong interaction, and a structure activity relationship study of SB269652 indicates that this H-bond may not be the only element that determines its allosteric properties. To understand the structural basis of the observed phenotype of E2.65A, we carried out molecular dynamics simulations with a cumulative length of ~77 MUs of D2R and D3R wild-type and their E2.65A mutants bound to SB269652. In combination with Markov state model analysis and by characterizing the equilibria of ligand binding modes in different conditions, we found that in both D2R and D3R, whereas the tetrahydroisoquinoline moiety of SB269652 is stably bound in the OBS, the indole 2-carboxamide moiety is dynamic and only intermittently forms H-bonds with Glu2.65. Our results also indicate that the E2.65A mutation significantly affects the overall shape and size of the SBP, as well as the conformation of the N terminus. Thus, our findings suggest that the key role of Glu2.65 in mediating the allosteric properties of SB269652 extends beyond a direct interaction with SB269652, and provide structural insights for rational design of SB269652 derivatives that may retain its allosteric properties. PMID- 29337987 TI - Identification of a noncanonical function for ribose-5-phosphate isomerase A promotes colorectal cancer formation by stabilizing and activating beta-catenin via a novel C-terminal domain. AB - Altered metabolism is one of the hallmarks of cancers. Deregulation of ribose-5 phosphate isomerase A (RPIA) in the pentose phosphate pathway (PPP) is known to promote tumorigenesis in liver, lung, and breast tissues. Yet, the molecular mechanism of RPIA-mediated colorectal cancer (CRC) is unknown. Our study demonstrates a noncanonical function of RPIA in CRC. Data from the mRNAs of 80 patients' CRC tissues and paired nontumor tissues and protein levels, as well as a CRC tissue array, indicate RPIA is significantly elevated in CRC. RPIA modulates cell proliferation and oncogenicity via activation of beta-catenin in colon cancer cell lines. Unlike its role in PPP in which RPIA functions within the cytosol, RPIA enters the nucleus to form a complex with the adenomatous polyposis coli (APC) and beta-catenin. This association protects beta-catenin by preventing its phosphorylation, ubiquitination, and subsequent degradation. The C terminus of RPIA (amino acids 290 to 311), a region distinct from its enzymatic domain, is necessary for RPIA-mediated tumorigenesis. Consistent with results in vitro, RPIA increases the expression of beta-catenin and its target genes, and induces tumorigenesis in gut-specific promotor-carrying RPIA transgenic zebrafish. Together, we demonstrate a novel function of RPIA in CRC formation in which RPIA enters the nucleus and stabilizes beta-catenin activity and suggests that RPIA might be a biomarker for targeted therapy and prognosis. PMID- 29337988 TI - L-arginine supplementation reduces mortality and improves disease outcome in mice infected with Trypanosoma cruzi. AB - Chagas disease caused by Trypanosoma cruzi is a neglected disease that affects about 7 million people in Latin America, recently emerging on other continents due to migration. As infection in mice is characterized by depletion of plasma L arginine, the effect on infection outcome was tested in mice with or without L arginine supplementation and treatment with 1400W, a specific inhibitor of inducible nitric oxide synthase (iNOS). We found that levels of L-arginine and citrulline were reduced in the heart and plasma of infected mice, whereas levels of asymmetric dimethylarginine, an endogenous iNOS inhibitor, were higher. Moreover, L-arginine supplementation decreased parasitemia and heart parasite burden, improving clinical score and survival. Nitric oxide production in heart tissue and plasma was increased by L-arginine supplementation, while pharmacological inhibition of iNOS yielded an increase in parasitemia and worse clinical score. Interestingly, electrocardiograms improved in mice supplemented with L-arginine, suggesting that it modulates infection and heart function and is thus a potential biomarker of pathology. More importantly, L-arginine may be useful for treating T. cruzi infection, either alone or in combination with other antiparasitic drugs. PMID- 29337989 TI - Differentially-dimensioned furrow formation by zygotic gene expression and the MBT. AB - Despite extensive work on the mechanisms that generate plasma membrane furrows, understanding how cells are able to dynamically regulate furrow dimensions is an unresolved question. Here, we present an in-depth characterization of furrow behaviors and their regulation in vivo during early Drosophila morphogenesis. We show that the deepening in furrow dimensions with successive nuclear cycles is largely due to the introduction of a new, rapid ingression phase (Ingression II). Blocking the midblastula transition (MBT) by suppressing zygotic transcription through pharmacological or genetic means causes the absence of Ingression II, and consequently reduces furrow dimensions. The analysis of compound chromosomes that produce chromosomal aneuploidies suggests that multiple loci on the X, II, and III chromosomes contribute to the production of differentially-dimensioned furrows, and we track the X-chromosomal contribution to furrow lengthening to the nullo gene product. We further show that checkpoint proteins are required for furrow lengthening; however, mitotic phases of the cell cycle are not strictly deterministic for furrow dimensions, as a decoupling of mitotic phases with periods of active ingression occurs as syncytial furrow cycles progress. Finally, we examined the turnover of maternal gene products and find that this is a minor contributor to the developmental regulation of furrow morphologies. Our results suggest that cellularization dynamics during cycle 14 are a continuation of dynamics established during the syncytial cycles and provide a more nuanced view of developmental- and MBT-driven morphogenesis. PMID- 29337991 TI - HaSAPPy: A tool for candidate identification in pooled forward genetic screens of haploid mammalian cells. AB - Haploid cells are increasingly used for screening of complex pathways in animal genomes. Hemizygous mutations introduced through viral insertional mutagenesis can be directly selected for phenotypic changes. Here we present HaSAPPy a tool for analysing sequencing datasets of screens using insertional mutations in large pools of haploid cells. Candidate gene prediction is implemented through identification of enrichment of insertional mutations after selection by simultaneously evaluating several parameters. We have developed HaSAPPy for analysis of genetic screens for silencing factors of X chromosome inactivation in haploid mouse embryonic stem cells. To benchmark the performance, we further analyse several datasets of genetic screens in human haploid cells for which candidates have been validated. Our results support the effective candidate prediction strategy of HaSAPPy. HaSAPPy is implemented in Python, licensed under the MIT license, and is available from https://github.com/gdiminin/HaSAPPy. PMID- 29337990 TI - Clustering gene expression time series data using an infinite Gaussian process mixture model. AB - Transcriptome-wide time series expression profiling is used to characterize the cellular response to environmental perturbations. The first step to analyzing transcriptional response data is often to cluster genes with similar responses. Here, we present a nonparametric model-based method, Dirichlet process Gaussian process mixture model (DPGP), which jointly models data clusters with a Dirichlet process and temporal dependencies with Gaussian processes. We demonstrate the accuracy of DPGP in comparison to state-of-the-art approaches using hundreds of simulated data sets. To further test our method, we apply DPGP to published microarray data from a microbial model organism exposed to stress and to novel RNA-seq data from a human cell line exposed to the glucocorticoid dexamethasone. We validate our clusters by examining local transcription factor binding and histone modifications. Our results demonstrate that jointly modeling cluster number and temporal dependencies can reveal shared regulatory mechanisms. DPGP software is freely available online at https://github.com/PrincetonUniversity/DP_GP_cluster. PMID- 29337992 TI - Outstanding resistance and passivation behaviour of new Fe-Co metal-metal glassy alloys in alkaline media. AB - The electrochemical behavior of the oxide layers on two metal-metal glassy alloys, Fe78Co9Cr10Mo2Al1 (VX9)and Fe49Co49V2 (VX50) (at.%), were studied using electrochemical techniques including electrochemical frequency modulation (EFM), electrochemical impedance spectroscopy (EIS) and cyclic polarization (CP) measurements. The morphology and composition of the alloy surfaces were investigated using X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The corrosion rate and surface roughness of both alloys increased as the concentration of NaOH in aqueous solution was raised. The presence of some protective elements in the composition of the alloys led to the formation of a spontaneous passive layer on the alloy surface. The higher resistance values of both alloys were associated with the magnitude of the dielectric properties of the passive films formed on their surfaces. Both alloys are classified as having outstanding resistance to corrosion, which results from the formation of a passive film that acts as an efficient barrier to corrosion in alkaline solution. PMID- 29337993 TI - The impact of ribosomal interference, codon usage, and exit tunnel interactions on translation elongation rate variation. AB - Previous studies have shown that translation elongation is regulated by multiple factors, but the observed heterogeneity remains only partially explained. To dissect quantitatively the different determinants of elongation speed, we use probabilistic modeling to estimate initiation and local elongation rates from ribosome profiling data. This model-based approach allows us to quantify the extent of interference between ribosomes on the same transcript. We show that neither interference nor the distribution of slow codons is sufficient to explain the observed heterogeneity. Instead, we find that electrostatic interactions between the ribosomal exit tunnel and specific parts of the nascent polypeptide govern the elongation rate variation as the polypeptide makes its initial pass through the tunnel. Once the N-terminus has escaped the tunnel, the hydropathy of the nascent polypeptide within the ribosome plays a major role in modulating the speed. We show that our results are consistent with the biophysical properties of the tunnel. PMID- 29337994 TI - A reassessment of the Montmaurin-La Niche mandible (Haute Garonne, France) in the context of European Pleistocene human evolution. AB - We here present a comparative study of the Montmaurin-LN Middle Pleistocene mandible (Haute-Garonne, France). This mandible, of which its right and left molar series are preserved in situ, was found in La Niche cave (Montmaurin's karst system) in 1949, and was first attributed to the 'Mindel-Riss' interglacial (= MIS 9 to 11) based on its geological context. Later studies based on geological and faunal evidence have attributed the Montmaurin-LN mandible to MIS 7. Following a detailed morphological and metric comparative study of the mandible in the 1970s, it was interpreted in the light of a still limited fossil record and the prevailing paradigm back then. Waiting for geochronological studies in the forthcoming years, here we review the main morphological and metrical features of this mandible and its molars, which have been reassessed in the framework of a remarkably enlarged Pleistocene fossil record since the mandible was first described, and our current, more in-depth understanding of human evolution in Europe. Using a selection of mandibular features with potential taxonomic signal we have found that the Montmaurin-LN mandible shares only a few derived traits with Neandertals. Our analyses reveal that this mandible is more closely related to the ancient specimens from the African and Eurasian Early and Middle Pleistocene, particularly due to the presence of primitive features of the Homo clade. In contrast, the external morphology of the molars is clearly similar to that of Neandertals. The results are assessed in the light of the present competing hypotheses used to explain the European hominin fossil record. PMID- 29337995 TI - Evaluation of a community-based intervention to improve maternal and neonatal health service coverage in the most rural and remote districts of Zambia. AB - BACKGROUND: A community-based intervention comprising both men and women, known as Safe Motherhood Action Groups (SMAGs), was implemented in four of Zambia's poorest and most remote districts to improve coverage of selected maternal and neonatal health interventions. This paper reports on outcomes in the coverage of maternal and neonatal care interventions, including antenatal care (ANC), skilled birth attendance (SBA) and postnatal care (PNC) in the study areas. METHODOLOGY: Three serial cross-sectional surveys were conducted between 2012 and 2015 among 1,652 mothers of children 0-5 months of age using a 'before-and-after' evaluation design with multi-stage sampling, combining probability proportional to size and simple random sampling. Logistic regression and chi-square test for trend were used to assess effect size and changes in measures of coverage for ANC, SBA and PNC during the intervention. RESULTS: Mothers' mean age and educational status were non-differentially comparable at all the three-time points. The odds of attending ANC at least four times (aOR 1.63; 95% CI 1.38-1.99) and SBA (aOR 1.72; 95% CI 1.38-1.99) were at least 60% higher at endline than baseline surveillance. A two-fold and four-fold increase in the odds of mothers receiving PNC from an appropriate skilled provider (aOR 2.13; 95% CI 1.62-2.79) and a SMAG (aOR 4.87; 95% CI 3.14-7.54), respectively, were observed at endline. Receiving birth preparedness messages from a SMAG during pregnancy (aOR 1.76; 95% CI, 1.20-2.19) and receiving ANC from a skilled provider (aOR 4.01; 95% CI, 2.88-5.75) were significant predictors for SBA at delivery and PNC. CONCLUSIONS: Strengthening community-based action groups in poor and remote districts through the support of mothers by SMAGs was associated with increased coverage of maternal and newborn health interventions, measured through ANC, SBA and PNC. In remote and marginalised settings, where the need is greatest, context-specific and innovative task-sharing strategies using community health volunteers can be effective in improving coverage of maternal and neonatal services and hold promise for better maternal and child survival in poorly-resourced parts of sub Saharan Africa. PMID- 29337996 TI - Occupational exposure to human Mycobacterium bovis infection: A systematic review. AB - BACKGROUND: Mycobacterium bovis (M. bovis) is the main causative agent of bovine zoonotic tuberculosis. The aim of this systematic review is to highlight the occupational exposure to bovine tuberculosis due to M. bovis. METHODOLOGY/PRINCIPAL FINDINGS: A computer based literature search was carried out to identify papers published between January 2006 and March 2017. "PubMed, Cochrane Library and Science Direct" databases were searched systematically. Articles presenting the following properties were included: (i) focusing on M. bovis; (ii) concerning occupational exposure to bovine tuberculosis. A quality assessment was performed after selection of studies. Our search strategy identified a total of 3,264 papers of which 29 studies met the inclusion criteria. Of the 29 articles, 17 were cross-sectional studies (6 were of high quality and scored in the range of 6-7, 11 were of moderate quality and scored in the range 3-5), 10 were case reports, and 2 were reviews. Different occupational fields exposing to the disease were described: livestock sector, particularly in contact with dairy cattle (farmers, veterinaries and assistants, abattoir workers) and working in contact with wildlife (hunters, taxidermists). CONCLUSIONS: A specific guideline for occupational practitioners taking care of employees exposed to bovine tuberculosis is warranted and should be tailored to level of exposure. This review was intended to be the first step of such a project. Articles were identified from various continents and countries with different socio-economic situations, broadening our understanding of the worldwide situation. Published data on occupational exposure in developed countries are scarce. We had to extrapolate findings from countries with higher prevalence of the disease. PMID- 29337997 TI - Event based surveillance of Middle East Respiratory Syndrome Coronavirus (MERS- CoV) in Bangladesh among pilgrims and travelers from the Middle East: An update for the period 2013-2016. AB - INTRODUCTION: Every year around 150,000 pilgrims from Bangladesh perform Umrah and Hajj. Emergence and continuous reporting of MERS-CoV infection in Saudi Arabia emphasize the need for surveillance of MERS-CoV in returning pilgrims or travelers from the Middle East and capacity building of health care providers for disease containment. The Institute of Epidemiology, Disease Control & Research (IEDCR) under the Bangladesh Ministry of Health and Family welfare (MoHFW), is responsible for MERS-CoV screening of pilgrims/ travelers returning from the Middle East with respiratory illness as part of its outbreak investigation and surveillance activities. METHODS: Bangladeshi travelers/pilgrims who returned from the Middle East and presented with fever and respiratory symptoms were studied over the period from October 2013 to June 2016. Patients with respiratory symptoms that fulfilled the WHO MERS-CoV case algorithm were tested for MERS-CoV and other respiratory tract viruses. Beside surveillance, case recognition training was conducted at multiple levels of health care facilities across the country in support of early detection and containment of the disease. RESULTS: Eighty one suspected cases tested by real time PCR resulted in zero detection of MERS-CoV infection. Viral etiology detected in 29.6% of the cases was predominantly influenza A (H1N1 and H3N2), and influenza B infection (22%). Peak testing occurred mostly following the annual Hajj season. CONCLUSIONS: Respiratory tract infections in travelers/pilgrims returning to Bangladesh from the Middle East are mainly due to influenza A and influenza B. Though MERS-CoV was not detected in the 81 patients tested, continuous screening and surveillance are essential for early detection of MERS-CoV infection and other respiratory pathogens to prevent transmissions in hospital settings and within communities. Awareness building among healthcare providers will help identify suspected cases. PMID- 29337998 TI - Cognitive mechanisms for inferring the meaning of novel signals during symbolisation. AB - As participants repeatedly interact using graphical signals (as in a game of Pictionary), the signals gradually shift from being iconic (or motivated) to being symbolic (or arbitrary). The aim here is to test experimentally whether this change in the form of the signal implies a concomitant shift in the inferential mechanisms needed to understand it. The results show that, during early, iconic stages, there is more reliance on creative inferential processes associated with insight problem solving, and that the recruitment of these cognitive mechanisms decreases over time. The variation in inferential mechanism is not predicted by the sign's visual complexity or iconicity, but by its familiarity, and by the complexity of the relevant mental representations. The discussion explores implications for pragmatics, language evolution, and iconicity research. PMID- 29337999 TI - A dynamical systems approach for estimating phase interactions between rhythms of different frequencies from experimental data. AB - Synchronization of neural oscillations as a mechanism of brain function is attracting increasing attention. Neural oscillation is a rhythmic neural activity that can be easily observed by noninvasive electroencephalography (EEG). Neural oscillations show the same frequency and cross-frequency synchronization for various cognitive and perceptual functions. However, it is unclear how this neural synchronization is achieved by a dynamical system. If neural oscillations are weakly coupled oscillators, the dynamics of neural synchronization can be described theoretically using a phase oscillator model. We propose an estimation method to identify the phase oscillator model from real data of cross-frequency synchronized activities. The proposed method can estimate the coupling function governing the properties of synchronization. Furthermore, we examine the reliability of the proposed method using time-series data obtained from numerical simulation and an electronic circuit experiment, and show that our method can estimate the coupling function correctly. Finally, we estimate the coupling function between EEG oscillation and the speech sound envelope, and discuss the validity of these results. PMID- 29338000 TI - Progression of the first stage of spontaneous labour: A prospective cohort study in two sub-Saharan African countries. AB - BACKGROUND: Escalation in the global rates of labour interventions, particularly cesarean section and oxytocin augmentation, has renewed interest in a better understanding of natural labour progression. Methodological advancements in statistical and computational techniques addressing the limitations of pioneer studies have led to novel findings and triggered a re-evaluation of current labour practices. As part of the World Health Organization's Better Outcomes in Labour Difficulty (BOLD) project, which aimed to develop a new labour monitoring to-action tool, we examined the patterns of labour progression as depicted by cervical dilatation over time in a cohort of women in Nigeria and Uganda who gave birth vaginally following a spontaneous labour onset. METHODS AND FINDINGS: This was a prospective, multicentre, cohort study of 5,606 women with singleton, vertex, term gestation who presented at <= 6 cm of cervical dilatation following a spontaneous labour onset that resulted in a vaginal birth with no adverse birth outcomes in 13 hospitals across Nigeria and Uganda. We independently applied survival analysis and multistate Markov models to estimate the duration of labour centimetre by centimetre until 10 cm and the cumulative duration of labour from the cervical dilatation at admission through 10 cm. Multistate Markov and nonlinear mixed models were separately used to construct average labour curves. All analyses were conducted according to three parity groups: parity = 0 (n = 2,166), parity = 1 (n = 1,488), and parity = 2+ (n = 1,952). We performed sensitivity analyses to assess the impact of oxytocin augmentation on labour progression by re-examining the progression patterns after excluding women with augmented labours. Labour was augmented with oxytocin in 40% of nulliparous and 28% of multiparous women. The median time to advance by 1 cm exceeded 1 hour until 5 cm was reached in both nulliparous and multiparous women. Based on a 95th percentile threshold, nulliparous women may take up to 7 hours to progress from 4 to 5 cm and over 3 hours to progress from 5 to 6 cm. Median cumulative duration of labour indicates that nulliparous women admitted at 4 cm, 5 cm, and 6 cm reached 10 cm within an expected time frame if the dilatation rate was >= 1 cm/hour, but their corresponding 95th percentiles show that labour could last up to 14, 11, and 9 hours, respectively. Substantial differences exist between actual plots of labour progression of individual women and the 'average labour curves' derived from study population-level data. Exclusion of women with augmented labours from the study population resulted in slightly faster labour progression patterns. CONCLUSIONS: Cervical dilatation during labour in the slowest-yet-normal women can progress more slowly than the widely accepted benchmark of 1 cm/hour, irrespective of parity. Interventions to expedite labour to conform to a cervical dilatation threshold of 1 cm/hour may be inappropriate, especially when applied before 5 cm in nulliparous and multiparous women. Averaged labour curves may not truly reflect the variability associated with labour progression, and their use for decision-making in labour management should be de-emphasized. PMID- 29338001 TI - Modelling the large-scale yellow fever outbreak in Luanda, Angola, and the impact of vaccination. AB - BACKGROUND: Yellow fever (YF), transmitted via bites of infected mosquitoes, is a life-threatening viral disease endemic to tropical and subtropical regions of Africa and South America. YF has largely been controlled by widespread national vaccination campaigns. Nevertheless, between December 2015 and August 2016, YF resurged in Angola, quickly spread and became the largest YF outbreak for the last 30 years. Recently, YF resurged again in Brazil (December 2016). Thus, there is an urgent need to gain better understanding of the transmission pattern of YF. MODEL: The present study provides a refined mathematical model, combined with modern likelihood-based statistical inference techniques, to assess and reconstruct important epidemiological processes underlying Angola's YF outbreak. This includes the outbreak's attack rate, the reproduction number ([Formula: see text]), the role of the mosquito vector, the influence of climatic factors, and the unusual but noticeable appearance of two-waves in the YF outbreak. The model explores actual and hypothetical vaccination strategies, and the impacts of possible human reactive behaviors (e.g., response to media precautions). FINDINGS: While there were 73 deaths reported over the study period, the model indicates that the vaccination campaign saved 5.1-fold more people from death and saved from illness 5.6-fold of the observed 941 cases. Delaying the availability of the vaccines further would have greatly worsened the epidemic in terms of increased cases and deaths. The analysis estimated a mean [Formula: see text] and an attack rate of 0.09-0.15% (proportion of population infected) over the whole period from December 2015 to August 2016. Our estimated lower and upper bounds of [Formula: see text] are in line with previous studies. Unusually, [Formula: see text] oscillated in a manner that was "delayed" with the reported deaths. High recent number of deaths were associated (followed) with periods of relatively low disease transmission and low [Formula: see text], and vice-versa. The time-series of Luanda's YF cases suggest the outbreak occurred in two waves, a feature that would have become far more prominent had there been no mass vaccination. The waves could possibly be due to protective reactive behavioral changes of the population affecting the mosquito population. The second wave could well be an outcome of the March-April rainfall patterns in the 2016 El Nino year by creating ideal conditions for the breeding of the mosquito vectors. The modelling framework is a powerful tool for studying future YF epidemic outbreaks, and provides a basis for future vaccination campaign evaluations. PMID- 29338002 TI - The associations between adult body composition and abdominal adiposity outcomes, and relative weight gain and linear growth from birth to age 22 in the Birth to Twenty Plus cohort, South Africa. AB - BACKGROUND: The growing prevalence of overweight and obesity in low- or middle income countries precipitates the need to examine early life predictors of adiposity. OBJECTIVES: To examine growth trajectories from birth, and associations with adult body composition in the Birth to Twenty Plus Cohort, Soweto, South Africa. METHODS: Complete data at year 22 was available for 1088 participants (536 males and 537 females). Conditional weight and height indices were generated indicative of relative rate of growth between years 0-2, 2-5, 5-8, 8-18, and 18-22. Whole body composition was measured at year 22 (range 21-25 years) using dual energy x-ray absorptiometry (DXA). Total fat free soft tissue mass (FFSTM), fat mass, and abdominal visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT) were recorded. RESULTS: Birth weight was positively associated with FFSTM and fat mass at year 22 (beta = 0.11, p<0.01 and beta = 0.10, p<0.01 respectively). Relative weight gain from birth to year 22 was positively associated with FFSTM, fat mass, VAT, and SAT at year 22. Relative linear growth from birth to year 22 was positively associated with FFSTM at year 22. Relative linear growth from birth to year 2 was positively associated with VAT at year 22. Being born small for gestational age and being stunted at age 2 years were inversely associated with FFSTM at year 22. CONCLUSIONS: The importance of optimal birth weight and growth tempos during early life for later life body composition, and the detrimental effects of pre- and postnatal growth restriction are clear; yet contemporary weight-gain most strongly predicted adult body composition. Thus interventions should target body composition trajectories during childhood and prevent excessive weight gain in early adulthood. PMID- 29338004 TI - Interrupting behaviour: Minimizing decision costs via temporal commitment and low level interrupts. AB - Ideal decision-makers should constantly assess all sources of information about opportunities and threats, and be able to redetermine their choices promptly in the face of change. However, perpetual monitoring and reassessment impose inordinate sensing and computational costs, making them impractical for animals and machines alike. The obvious alternative of committing for extended periods of time to limited sensory strategies associated with particular courses of action can be dangerous and wasteful. Here, we explore the intermediate possibility of making provisional temporal commitments whilst admitting interruption based on limited broader observation. We simulate foraging under threat of predation to elucidate the benefits of such a scheme. We relate our results to diseases of distractibility and roving attention, and consider mechanistic substrates such as noradrenergic neuromodulation. PMID- 29338003 TI - The prevalence of autosomal dominant polycystic kidney disease (ADPKD): A meta analysis of European literature and prevalence evaluation in the Italian province of Modena suggest that ADPKD is a rare and underdiagnosed condition. AB - BACKGROUND AND OBJECTIVES: ADPKD is erroneously perceived as a not rare condition, which is mainly due to the repeated citation of a mistaken interpretation of old epidemiological data, as reported in the Dalgaard's work (1957). Even if ADPKD is not a common condition, the correct prevalence of ADPKD in the general population is uncertain, with a wide range of estimations reported by different authors. In this work, we have performed a meta-analysis of available epidemiological data in the European literature. Furthermore we collected the diagnosis and clinical data of ADPKD in a province in the north of Italy (Modena). We describe the point and predicted prevalence of ADPKD, as well as the main clinical characteristics of ADPKD in this region. METHODS: We looked at the epidemiological data according to specific parameters and criteria in the Pubmed, CINAHL, Scopus and Web of Science databases. Data were summarized using linear regression analysis. We collected patients' diagnoses in the Province of Modena according to accepted clinical criteria and/or molecular analysis. Predicted prevalence has been calculated through a logistic regression prediction applied to the at-risk population. RESULTS: The average prevalence of ADPKD, as obtained from 8 epidemiological studies of sufficient quality, is 2.7: 10,000 (CI95 = 0.73-4.67). The point prevalence of ADPKD in the province of Modena is 3.63: 10,000 (CI95 = 3.010-3.758). On the basis of the collected pedigrees and identification of the at-risk subjects, the predicted prevalence in the Province of Modena is 4.76: 10,000 (CI 95% = 4.109-4.918). CONCLUSION: As identified in our study, point prevalence is comparable with the majority of the studies of literature, while predicted prevalence (4.76: 10,000) generally appears higher than in the previous estimates of the literature, with a few exceptions. Thus, this could suggest that undiagnosed ADPKD subjects, as predicted by our approach, could be relevant and will most likely require more clinical attention. Nevertheless, our estimation, in addition to the averaged ones derived from literature, not exceeding the limit of 5:10,000 inhabitants, are compatible with the definition of rare disease adopted by the European Medicines Agency and Food and Drug Administration. PMID- 29338006 TI - A model for cooperative gating of L-type Ca2+ channels and its effects on cardiac alternans dynamics. AB - In ventricular myocytes, membrane depolarization during the action potential (AP) causes synchronous activation of multiple L-type CaV1.2 channels (LTCCs), which trigger the release of calcium (Ca2+) from the sarcoplasmic reticulum (SR). This results in an increase in intracellular Ca2+ (Cai) that initiates contraction. During pulsus alternans, cardiac contraction is unstable, going from weak to strong in successive beats despite a constant heart rate. These cardiac alternans can be caused by the instability of membrane potential (Vm) due to steep AP duration (APD) restitution (Vm-driven alternans), instability of Cai cycling (Ca2+-driven alternans), or both, and may be modulated by functional coupling between clustered CaV1.2 (e.g. cooperative gating). Here, mathematical analysis and computational models were used to determine how changes in the strength of cooperative gating between LTCCs may impact membrane voltage and intracellular Ca2+ dynamics in the heart. We found that increasing the degree of coupling between LTCCs increases the amplitude of Ca2+ currents (ICaL) and prolongs AP duration (APD). Increased AP duration is known to promote cardiac alternans, a potentially arrhythmogenic substrate. In addition, our analysis shows that increasing the strength of cooperative activation of LTCCs makes the coupling of Ca2+ on the membrane voltage (Cai->Vm coupling) more positive and destabilizes the Vm-Cai dynamics for Vm-driven alternans and Cai-driven alternans, but not for quasiperiodic oscillation. These results suggest that cooperative gating of LTCCs may have a major impact on cardiac excitation-contraction coupling, not only by prolonging APD, but also by altering Cai->Vm coupling and potentially promoting cardiac arrhythmias. PMID- 29338005 TI - Inferring cell state by quantitative motility analysis reveals a dynamic state system and broken detailed balance. AB - Cell populations display heterogeneous and dynamic phenotypic states at multiple scales. Similar to molecular features commonly used to explore cell heterogeneity, cell behavior is a rich phenotypic space that may allow for identification of relevant cell states. Inference of cell state from cell behavior across a time course may enable the investigation of dynamics of transitions between heterogeneous cell states, a task difficult to perform with destructive molecular observations. Cell motility is one such easily observed cell behavior with known biomedical relevance. To investigate heterogenous cell states and their dynamics through the lens of cell behavior, we developed Heteromotility, a software tool to extract quantitative motility features from timelapse cell images. In mouse embryonic fibroblasts (MEFs), myoblasts, and muscle stem cells (MuSCs), Heteromotility analysis identifies multiple motility phenotypes within the population. In all three systems, the motility state identity of individual cells is dynamic. Quantification of state transitions reveals that MuSCs undergoing activation transition through progressive motility states toward the myoblast phenotype. Transition rates during MuSC activation suggest non-linear kinetics. By probability flux analysis, we find that this MuSC motility state system breaks detailed balance, while the MEF and myoblast systems do not. Balanced behavior state transitions can be captured by equilibrium formalisms, while unbalanced switching between states violates equilibrium conditions and would require an external driving force. Our data indicate that the system regulating cell behavior can be decomposed into a set of attractor states which depend on the identity of the cell, together with a set of transitions between states. These results support a conceptual view of cell populations as dynamical systems, responding to inputs from signaling pathways and generating outputs in the form of state transitions and observable motile behaviors. PMID- 29338007 TI - Bilateral changes in afterhyperpolarization duration of spinal motoneurones in post-stroke patients. AB - This paper extends the observations presented in the previously published work on the afterhyperpolarization (AHP) duration changes in motoneurones (MNs) on the paretic (more affected) side of 11 post-stroke patients by the same analysis on the non-paretic (less-affected) side. The estimated AHP duration for patients' MNs supplying more-affected muscles was significantly longer than control values and the elongation decreased with patient age and disorder duration. For MNs supplying less-affected muscles, dependency of AHP duration on age was closer to the control data, but the scatter was substantially bigger. However, the AHP duration estimate of less-affected MNs tended to be longer than that of controls in the short time elapsed since the stroke, and shorter than controls in the long time. Our results thus suggest that the spinal MNs on both sides respond to the cerebral stroke rapidly with prolongation of AHP duration, which tends to normalize with time, in line with functional recovery. This suggestion is in concert with the published research on post-stroke changes in brain hemispheres. To our knowledge, these dependencies have never been investigated before. Since the number of our data was limited, the observed trends should be verified in a larger sample of patients and such a verification could take into account the suggestions for data analysis that we provide in this paper. Our data are in line with the earlier published research on MN firing characteristics post-stroke and support the conclusion that the MUs of the muscles at the non-paretic side are also affected and cannot be considered a suitable control for the MUs on the paretic side. PMID- 29338008 TI - Interactions between species introduce spurious associations in microbiome studies. AB - Microbiota contribute to many dimensions of host phenotype, including disease. To link specific microbes to specific phenotypes, microbiome-wide association studies compare microbial abundances between two groups of samples. Abundance differences, however, reflect not only direct associations with the phenotype, but also indirect effects due to microbial interactions. We found that microbial interactions could easily generate a large number of spurious associations that provide no mechanistic insight. Using techniques from statistical physics, we developed a method to remove indirect associations and applied it to the largest dataset on pediatric inflammatory bowel disease. Our method corrected the inflation of p-values in standard association tests and showed that only a small subset of associations is directly linked to the disease. Direct associations had a much higher accuracy in separating cases from controls and pointed to immunomodulation, butyrate production, and the brain-gut axis as important factors in the inflammatory bowel disease. PMID- 29338009 TI - Anti-angiogenic drug loaded liposomes: Nanotherapy for early atherosclerotic lesions in mice. AB - Fumagillin-loaded liposomes were injected into ApoE-KO mice. The animals were divided into several groups to test the efficacy of this anti-angiogenic drug for early treatment of atherosclerotic lesions. Statistical analysis of the lesions revealed a decrease in the lesion size after 5 weeks of treatment. PMID- 29338010 TI - Gypsophila bermejoi G. Lopez: A possible case of speciation repressed by bioclimatic factors. AB - Gypsophila bermejoi G. Lopez is an allopolyploid species derived from the parental G. struthium L. subsp. struthium and G. tomentosa L. All these plants are gypsophytes endemic to the Iberian Peninsula of particular ecological, evolutionary and biochemical interest. In this study, we present evidence of a possible repression on the process of G. bermejoi speciation by climatic factors. We modelled the ecological niches of the three taxa considered here using a maximum entropy approach and employing a series of bioclimatic variables. Subsequently, we projected these models onto the geographical space of the Iberian Peninsula in the present age and at two past ages: the Last Glacial Maximum and the mid-Holocene period. Furthermore, we compared these niches using the statistical method devised by Warren to calculate their degree of overlap. We also evaluated the evolution of the bioclimatic habitat suitability at those sites were the soil favors the growth of these species. Both the maximum entropy model and the degree of overlap indicated that the ecological behavior of the hybrid differs notably from that of the parental species. During the Last Glacial Maximum, the two parental species appear to take refuge in the western coastal strip of the Peninsula, a region in which there are virtually no sites where G. bermejoi could potentially be found. However, in the mid-Holocene period the suitability of G. bermejoi to sites with favorable soils shifts from almost null to a strong adaptation, a clear change in this tendency. These results suggest that the ecological niches of hybrid allopolyploids can be considerably different to those of their parental species, which may have evolutionary and ecologically relevant consequences. The data obtained indicate that certain bioclimatic variables may possibly repress the processes by which new species are formed. The difference in the ecological niche of G. bermejoi with respect to its parental species prevented it from prospering during the Last Glacial Maximum. However, the climatic change in the mid-Holocene period released this block and as such, it permitted the new species to establish itself. Accordingly, we favor a recent origin of the current populations of G. bermejoi. PMID- 29338011 TI - Validation of Growth Layer Group (GLG) depositional rate using daily incremental growth lines in the dentin of beluga (Delphinapterus leucas (Pallas, 1776)) teeth. AB - Counts of Growth Layer Groups (GLGs) in the dentin of marine mammal teeth are widely used as indicators of age. In most marine mammals, observations document that GLGs are deposited yearly, but in beluga whales, some studies have supported the view that two GLGs are deposited each year. Our understanding of beluga life history differs substantially depending on assumptions regarding the timing of GLG deposition; therefore, resolving this issue has important considerations for population assessments. In this study, we used incremental lines that represent daily pulses of dentin mineralization to test the hypothesis that GLGs in beluga dentin are deposited on a yearly basis. Our estimate of the number of daily growth lines within one GLG is remarkably close to 365 days within error, supporting the hypothesis that GLGs are deposited annually in beluga. We show that measurement of daily growth increments can be used to validate the time represented by GLGs in beluga. Furthermore, we believe this methodology may have broader applications to age estimation in other taxa. PMID- 29338013 TI - Dynamical networks of influence in small group discussions. AB - In many domains of life, business and management, numerous problems are addressed by small groups of individuals engaged in face-to-face discussions. While research in social psychology has a long history of studying the determinants of small group performances, the internal dynamics that govern a group discussion are not yet well understood. Here, we rely on computational methods based on network analyses and opinion dynamics to describe how individuals influence each other during a group discussion. We consider the situation in which a small group of three individuals engages in a discussion to solve an estimation task. We propose a model describing how group members gradually influence each other and revise their judgments over the course of the discussion. The main component of the model is an influence network-a weighted, directed graph that determines the extent to which individuals influence each other during the discussion. In simulations, we first study the optimal structure of the influence network that yields the best group performances. Then, we implement a social learning process by which individuals adapt to the past performance of their peers, thereby affecting the structure of the influence network in the long run. We explore the mechanisms underlying the emergence of efficient or maladaptive networks and show that the influence network can converge towards the optimal one, but only when individuals exhibit a social discounting bias by downgrading the relative performances of their peers. Finally, we find a late-speaker effect, whereby individuals who speak later in the discussion are perceived more positively in the long run and are thus more influential. The numerous predictions of the model can serve as a basis for future experiments, and this work opens research on small group discussion to computational social sciences. PMID- 29338012 TI - Using geospatial techniques to develop an emergency referral transport system for suspected sepsis patients in Bangladesh. AB - BACKGROUND: A geographic information system (GIS)-based transport network within an emergency referral system can be the key to reducing health system delays and increasing the chances of survival, especially during an emergency. We employed a GIS to design an emergency transport system for the rapid transfer of pregnant or early post-partum women, newborns, and children under 5 years of age with suspected sepsis under the Interrupting Pathways to Sepsis Initiative (IPSI) project. METHODS: A GIS database was developed by mapping the villages, roads, and relevant physical features of the study area. A travel-time algorithm was developed to incorporate the time taken by different modes of local transport to reach the health complexes. These were used in a network analysis to identify the shortest routes to the hospitals from the villages, which were categorized into green, yellow, and red zones based on their proximity to the nearest hospitals to provide transport facilities. An emergency call-in centre established for the project managed the transport system, and its data was used to assess the uptake of this transport system amongst distant communities. RESULTS: Fifteen pre existing and two new routes were identified as the shortest routes to the health complexes. The call-in centre personnel used this route information to direct both patients and transport drivers to the nearest transport hubs or pick-up points. Adherence with referral advice was high in areas where the IPSI transport operated. Over the study period, the utilisation of the project's transport doubled and referral compliance from distant zones similarly increased. CONCLUSIONS: The GIS system created for this study facilitated rapid referral of patients in emergency from distant zones, using locally available transport and resources. The methodology described in this study to develop and implement an emergency transport system can be applied in similar, rural, low-income country settings. PMID- 29338014 TI - Value of adding the renal pathological score to the kidney failure risk equation in advanced diabetic nephropathy. AB - BACKGROUND: There have been a limited number of biopsy-based studies on diabetic nephropathy, and therefore the clinical importance of renal biopsy in patients with diabetes in late-stage chronic kidney disease (CKD) is still debated. We aimed to clarify the renal prognostic value of pathological information to clinical information in patients with diabetes and advanced CKD. METHODS: We retrospectively assessed 493 type 2 diabetics with biopsy-proven diabetic nephropathy in four centers in Japan. 296 patients with stage 3-5 CKD at the time of biopsy were identified and assigned two risk prediction scores for end-stage renal disease (ESRD): the Kidney Failure Risk Equation (KFRE, a score composed of clinical parameters) and the Diabetic Nephropathy Score (D-score, a score integrated pathological parameters of the Diabetic Nephropathy Classification by the Renal Pathology Society (RPS DN Classification)). They were randomized 2:1 to development and validation cohort. Hazard Ratios (HR) of incident ESRD were reported with 95% confidence interval (CI) of the KFRE, D-score and KFRE+D-score in Cox regression model. Improvement of risk prediction with the addition of D score to the KFRE was assessed using c-statistics, continuous net reclassification improvement (NRI), and integrated discrimination improvement (IDI). RESULTS: During median follow-up of 1.9 years, 194 patients developed ESRD. The cox regression analysis showed that the KFRE,D-score and KFRE+D-score were significant predictors of ESRD both in the development cohort and in the validation cohort. The c-statistics of the D-score was 0.67. The c-statistics of the KFRE was good, but its predictive value was weaker than that in the miscellaneous CKD cohort originally reported (c-statistics, 0.78 vs. 0.90) and was not significantly improved by adding the D-score (0.78 vs. 0.79, p = 0.83). Only continuous NRI was positive after adding the D-score to the KFRE (0.4%; CI: 0.0-0.8%). CONCLUSIONS: We found that the predict values of the KFRE and the D score were not as good as reported, and combining the D-score with the KFRE did not significantly improve prediction of the risk of ESRD in advanced diabetic nephropathy. To improve prediction of renal prognosis for advanced diabetic nephropathy may require different approaches with combining clinical and pathological parameters that were not measured in the KFRE and the RPS DN Classification. PMID- 29338015 TI - Exercise-induced circulating microRNA changes in athletes in various training scenarios. AB - BACKGROUND: The aim of the study was to compare selected extracellular miRNA levels (miR-16, miR-21, miR-93 and miR-222 with the response to 8-week-long explosive strength training (EXPL), hypertrophic strength training (HYP) and high intensity interval training (HIIT). METHODS: 30 young male athletes of white European origin (mean age: 22.5 +/- 4.06 years) recruited at the Faculty of Sports Studies of Masaryk University were enrolled in this study. The study participants were randomly assigned to three possible training scenarios: EXPL, HYP or HITT and participated in 8-week-long program in given arm. Blood plasma samples were collected at the baseline and at week 5 and 8 and anthropometric and physical activity parameters were measured. Pre- and post-intervention characteristics were compared and participants were further evaluated as responders (RES) or non-responders (NRES). RES/NRES status was established for the following characteristics: 300 degrees /s right leg extension (t300), 60 degrees /s right leg extension (t60), isometric extension (IE), vertical jump, isometric extension of the right leg and body fat percentage (BFP). RESULTS: No differences in miRNA levels were apparent between the intervention groups at baseline. No statistically significant prediction role was observed using crude univariate stepwise regression model analysis where RES/NRES status for t300, t60, IE, vertical jump and pFM was used as a dependent variable and miR-21, miR 222, miR-16 and miR-93 levels at baseline were used as independent variables. The baseline levels of miR-93 expressed an independent prediction role for responder status based on isometric extension of the right leg (beta estimate 0.76, 95% CI: -0.01; 1.53, p = 0.052). DISCUSSION: The results of the study indicate that 8 week-long explosive strength training, hypertrophic strength training and high intensity interval training regimens are associated with significant changes in miR-16, mir-21, miR-222 and miR-93 levels compared to a baseline in athletic young men. PMID- 29338016 TI - Ultrasound-mediated delivery and distribution of polymeric nanoparticles in the normal brain parenchyma of a metastatic brain tumour model. AB - The treatment of brain diseases is hindered by the blood-brain barrier (BBB) preventing most drugs from entering the brain. Focused ultrasound (FUS) with microbubbles can open the BBB safely and reversibly. Systemic drug injection might induce toxicity, but encapsulation into nanoparticles reduces accumulation in normal tissue. Here we used a novel platform based on poly(2-ethyl-butyl cyanoacrylate) nanoparticle-stabilized microbubbles to permeabilize the BBB in a melanoma brain metastasis model. With a dual-frequency ultrasound transducer generating FUS at 1.1 MHz and 7.8 MHz, we opened the BBB using nanoparticle microbubbles and low-frequency FUS, and applied high-frequency FUS to generate acoustic radiation force and push nanoparticles through the extracellular matrix. Using confocal microscopy and image analysis, we quantified nanoparticle extravasation and distribution in the brain parenchyma. We also evaluated haemorrhage, as well as the expression of P-glycoprotein, a key BBB component. FUS and microbubbles distributed nanoparticles in the brain parenchyma, and the distribution depended on the extent of BBB opening. The results from acoustic radiation force were not conclusive, but in a few animals some effect could be detected. P-glycoprotein was not significantly altered immediately after sonication. In summary, FUS with our nanoparticle-stabilized microbubbles can achieve accumulation and displacement of nanoparticles in the brain parenchyma. PMID- 29338017 TI - Comparative genomics identifies distinct lineages of S. Enteritidis from Queensland, Australia. AB - Salmonella enterica is a major cause of gastroenteritis and foodborne illness in Australia where notification rates in the state of Queensland are the highest in the country. S. Enteritidis is among the five most common serotypes reported in Queensland and it is a priority for epidemiological surveillance due to concerns regarding its emergence in Australia. Using whole genome sequencing, we have analysed the genomic epidemiology of 217 S. Enteritidis isolates from Queensland, and observed that they fall into three distinct clades, which we have differentiated as Clades A, B and C. Phage types and MLST sequence types differed between the clades and comparative genomic analysis has shown that each has a unique profile of prophage and genomic islands. Several of the phage regions present in the S. Enteritidis reference strain P125109 were absent in Clades A and C, and these clades also had difference in the presence of pathogenicity islands, containing complete SPI-6 and SPI-19 regions, while P125109 does not. Antimicrobial resistance markers were found in 39 isolates, all but one of which belonged to Clade B. Phylogenetic analysis of the Queensland isolates in the context of 170 international strains showed that Queensland Clade B isolates group together with the previously identified global clade, while the other two clades are distinct and appear largely restricted to Australia. Locally sourced environmental isolates included in this analysis all belonged to Clades A and C, which is consistent with the theory that these clades are a source of locally acquired infection, while Clade B isolates are mostly travel related. PMID- 29338019 TI - Survey of checkpoints along the pathway to diverse biomedical research faculty. AB - There is a persistent shortage of underrepresented minority (URM) faculty who are involved in basic biomedical research at medical schools. We examined the entire training pathway of potential candidates to identify the points of greatest loss. Using a range of recent national data sources, including the National Science Foundation's Survey of Earned Doctorates and Survey of Doctoral Recipients, we analyzed the demographics of the population of interest, specifically those from URM backgrounds with an interest in biomedical sciences. We examined the URM population from high school graduates through undergraduate, graduate, and postdoctoral training as well as the URM population in basic science tenure track faculty positions at medical schools. We find that URM and non-URM trainees are equally likely to transition into doctoral programs, to receive their doctoral degree, and to secure a postdoctoral position. However, the analysis reveals that the diversions from developing a faculty career are found primarily at two clearly identifiable places, specifically during undergraduate education and in transition from postdoctoral fellowship to tenure track faculty in the basic sciences at medical schools. We suggest focusing additional interventions on these two stages along the educational pathway. PMID- 29338018 TI - Oral mucosa tissue gene expression profiling before, during, and after radiation therapy for tonsil squamous cell carcinoma. AB - BACKGROUND: Radiation-therapy (RT) induces mucositis, a clinically challenging condition with limited prophylactic interventions and no predictive tests. In this pilot study, we applied global gene-expression analysis on serial human oral mucosa tissue and blood cells from patients with tonsil squamous cell cancer (TSCC) to identify genes involved in mucositis pathogenesis. METHODS AND FINDINGS: Eight patients with TSCC each provided consecutive buccal biopsies and blood cells before, after 7 days of RT treatment, and 20 days following RT. We monitored clinical mucositis and performed gene-expression analysis on tissue samples. We obtained control tissue from nine healthy individuals. After RT, expression was upregulated in apoptosis inducer and inhibitor genes, EDA2R and MDM2, and in POLH, a DNA-repair polymerase. Expression was downregulated in six members of the histone cluster family, e.g., HIST1H3B. Gene expression related to proliferation and differentiation was altered, including MKI67 (downregulated), which encodes the Ki-67-proliferation marker, and KRT16 (upregulated), which encodes keratin16. These alterations were not associated with the clinical mucositis grade. However, the expression of LY6G6C, which encodes a surface immunoregulatory protein, was upregulated before treatment in three cases of clinical none/mild mucositis, but not in four cases of ulcerative mucositis. CONCLUSION: RT caused molecular changes related to apoptosis, DNA-damage, DNA repair, and proliferation without a correlation to the severity of clinical mucositis. LY6G6C may be a potential protective biomarker for ulcerative mucositis. Based on these results, our study model of consecutive human biopsies will be useful in designing a prospective clinical validation trial to characterize molecular mucositis and identify predictive biomarkers. PMID- 29338020 TI - Autonomic stress reactivity and craving in individuals with problematic Internet use. AB - The link between autonomic stress reactivity and subjective urge/craving has been less systematically examined in behavioral addictions (i.e. problematic Internet use) than in substance use disorders. The present study investigated whether problematic Internet users (PU) show enhanced autonomic stress reactivity than non-PU, indexed by lower Heart Rate Variability (HRV) and higher Skin Conductance Level (SCL) reactivity during the Trier Social Stress Test (TSST), whether greater reactivity is related to stronger Internet craving, and whether problematic Internet usage is associated with some dysfunctional psychological features. Based on their Internet Addiction Test scores, participants were divided into PU (N = 24) and non-PU (N = 21). Their heart rate and skin conductance were continuously recorded during baseline, social stressors, and recovery. Craving for Internet usage were collected using a Likert scale before and after the TSST. The SDNN, an overall measure of HRV, was significantly lower in PU than non-PU during baseline, but not during and after stressful task. Furthermore, only among PU a significant negative correlation emerged between SDNN during recovery and craving ratings after the test. No group differences emerged for SCL. Lastly, PU endorsed more mood, obsessive-compulsive, and alcohol related problems. Our findings suggest that problems in controlling one's use of the Internet may be related to reduced autonomic balance at rest. Moreover, our results provide new insights into the characterization of craving in PIU, indicating the existence of a relationship between craving for Internet usage and reduced autonomic flexibility. PMID- 29338021 TI - Coral physiology and microbiome dynamics under combined warming and ocean acidification. AB - Rising seawater temperature and ocean acidification threaten the survival of coral reefs. The relationship between coral physiology and its microbiome may reveal why some corals are more resilient to these global change conditions. Here, we conducted the first experiment to simultaneously investigate changes in the coral microbiome and coral physiology in response to the dual stress of elevated seawater temperature and ocean acidification expected by the end of this century. Two species of corals, Acropora millepora containing the thermally sensitive endosymbiont C21a and Turbinaria reniformis containing the thermally tolerant endosymbiont Symbiodinium trenchi, were exposed to control (26.5 degrees C and pCO2 of 364 MUatm) and treatment (29.0 degrees C and pCO2 of 750 MUatm) conditions for 24 days, after which we measured the microbial community composition. These microbial findings were interpreted within the context of previously published physiological measurements from the exact same corals in this study (calcification, organic carbon flux, ratio of photosynthesis to respiration, photosystem II maximal efficiency, total lipids, soluble animal protein, soluble animal carbohydrates, soluble algal protein, soluble algal carbohydrate, biomass, endosymbiotic algal density, and chlorophyll a). Overall, dually stressed A. millepora had reduced microbial diversity, experienced large changes in microbial community composition, and experienced dramatic physiological declines in calcification, photosystem II maximal efficiency, and algal carbohydrates. In contrast, the dually stressed coral T. reniformis experienced a stable and more diverse microbiome community with minimal physiological decline, coupled with very high total energy reserves and particulate organic carbon release rates. Thus, the microbiome changed and microbial diversity decreased in the physiologically sensitive coral with the thermally sensitive endosymbiotic algae but not in the physiologically tolerant coral with the thermally tolerant endosymbiont. Our results confirm recent findings that temperature-stress tolerant corals have a more stable microbiome, and demonstrate for the first time that this is also the case under the dual stresses of ocean warming and acidification. We propose that coral with a stable microbiome are also more physiologically resilient and thus more likely to persist in the future, and shape the coral species diversity of future reef ecosystems. PMID- 29338023 TI - Traditional agricultural practices and the sex ratio today. AB - We study the historical origins of cross-country differences in the male-to female sex ratio. Our analysis focuses on the use of the plough in traditional agriculture. In societies that did not use the plough, women tended to participate in agriculture as actively as men. By contrast, in societies that used the plough, men specialized in agricultural work, due to the physical strength needed to pull the plough or control the animal that pulls it. We hypothesize that this difference caused plough-using societies to value boys more than girls. Today, this belief is reflected in male-biased sex ratios, which arise due to sex-selective abortion or infanticide, or gender-differences in access to family resources, which results in higher mortality rates for girls. Testing this hypothesis, we show that descendants of societies that traditionally practiced plough agriculture today have higher average male-to-female sex ratios. We find that this effect systematically increases in magnitude and statistical significance as one looks at older cohorts. Estimates using instrumental variables confirm our findings from multivariate OLS analysis. PMID- 29338022 TI - Bone metabolism dynamics in the early post-transplant period following kidney and liver transplantation. AB - Bone disease contributes to relevant morbidity after solid organ transplantation. Vitamin D has a crucial role for bone metabolism. Activation of vitamin D depends on the endocrine function of both, liver and kidney. Our study assessed key markers of bone metabolism at time of transplantation and 6 months after transplantation among 70 kidney and 70 liver recipients. In 70 kidney recipients 25-OH vitamin D levels did not differ significantly between peri-transplant (median 32.5nmol/l) and 6 months post-transplant (median 41.9nmol/l; P = 0.272). Six months post-transplant median 1, 25-(OH)2 vitamin D levels increased by >300% (from 9.1 to 36.5ng/l; P<0.001) and median intact parathyroid hormone levels decreased by 68.4% (from 208.7 to 66.0 ng/l; P<0.001). Median beta-Crosslaps (CTx) and total procollagen type 1 amino-terminal propeptide (P1NP) decreased by 65.1% (from 1.32 to 0.46ng/ml; P<0.001) and 60.6% (from 158.2 to 62.3ng/ml; P<0.001), respectively. Kidney recipients with incident fractures had significantly lower levels of 1, 25-(OH)2 vitamin D at time of transplantation and of intact parathyroid hormone 6 months post-transplant. Among 70 liver recipients, 25-OH vitamin D, 1, 25-(OH)2 vitamin D and intact parathyroid hormone levels were not significantly altered between peri-transplant and 6 months post transplant. Contrary to kidney recipients, median CTx increased by 60.0% (from 0.45 to 0.72 ng/ml; P = 0.002) and P1NP by 49.3% (from 84.0 to 125.4ng/ml; P = 0.001) in the longitudinal course. Assessed biomarkers didn't differ between liver recipients with and without fractures. To conclude, the assessed panel of biomarkers proved highly dynamic after liver as well as kidney transplantation in the early post-transplant period. After kidney transplantation a significant gain in 1, 25-(OH)2 vitamin D combined with a decline in iPTH, CTx and P1NP, whereas after liver transplantation an increase in CTx and P1NP were characteristic. PMID- 29338024 TI - Quantitative in vivo mapping of myocardial mitochondrial membrane potential. AB - BACKGROUND: Mitochondrial membrane potential (DeltaPsim) arises from normal function of the electron transport chain. Maintenance of DeltaPsim within a narrow range is essential for mitochondrial function. Methods for in vivo measurement of DeltaPsim do not exist. We use 18F-labeled tetraphenylphosphonium (18F-TPP+) to measure and map the total membrane potential, DeltaPsiT, as the sum of DeltaPsim and cellular (DeltaPsic) electrical potentials. METHODS: Eight pigs, five controls and three with a scar-like injury, were studied. Pigs were studied with a dynamic PET scanning protocol to measure 18F-TPP+ volume of distribution, VT. Fractional extracellular space (fECS) was measured in 3 pigs. We derived equations expressing DeltaPsiT as a function of VT and the volume-fractions of mitochondria and fECS. Seventeen segment polar maps and parametric images of DeltaPsiT were calculated in millivolts (mV). RESULTS: In controls, mean segmental DeltaPsiT = -129.4+/-1.4 mV (SEM). In pigs with segmental tissue injury, DeltaPsiT was clearly separated from control segments but variable, in the range -100 to 0 mV. The quality of DeltaPsiT maps was excellent, with low noise and good resolution. Measurements of DeltaPsiT in the left ventricle of pigs agree with previous in in-vitro measurements. CONCLUSIONS: We have analyzed the factors affecting the uptake of voltage sensing tracers and developed a minimally invasive method for mapping DeltaPsiT in left ventricular myocardium of pigs. DeltaPsiT is computed in absolute units, allowing for visual and statistical comparison of individual values with normative data. These studies demonstrate the first in vivo application of quantitative mapping of total tissue membrane potential, DeltaPsiT. PMID- 29338025 TI - Adolescent cohorts assessing growth, cardiovascular and cognitive outcomes in low and middle-income countries. AB - INTRODUCTION: Life-course studies are needed to explore how exposures during adolescence, particularly puberty, contribute to later cardiovascular risk and cognitive health in low and middle-income countries (LMIC), where 90% of the world's young people live. The extent of any existing cohorts investigating these outcomes in LMIC has not previously been described. METHODS: We performed a systematic literature review to identify population cohort studies of adolescents in LMIC that assessed anthropometry and any of cardiovascular risk (blood pressure, physical activity, plasma glucose/lipid profile and substance misuse), puberty (age at menarche, Tanner staging, or other form of pubertal staging) or cognitive outcomes. Studies that recruited participants on the basis of a pre existing condition or involved less than 500 young people were excluded. FINDINGS: 1829 studies were identified, and 24 cohorts fulfilled inclusion criteria based in Asia (10), Africa (6) and South / Central America (8). 14 (58%) of cohorts identified were based in one of four countries; India, Brazil, Vietnam or Ethiopia. Only 2 cohorts included a comprehensive cardiovascular assessment, tanner pubertal staging, and cognitive outcomes. CONCLUSION: Improved utilisation of existing datasets and additional cohort studies of adolescents in LMIC that collect contemporaneous measures of growth, cognition, cardiovascular risk and pubertal development are needed to better understand how this period of the life course influences future non-communicable disease morbidity and cognitive outcomes. PMID- 29338026 TI - Flow cytometric analysis identifies changes in S and M phases as novel cell cycle alterations induced by the splicing inhibitor isoginkgetin. AB - The spliceosome is a large ribonucleoprotein complex that catalyzes the removal of introns from RNA polymerase II-transcribed RNAs. Spliceosome assembly occurs in a stepwise manner through specific intermediates referred to as pre spliceosome complexes E, A, B, B* and C. It has been reported that small molecule inhibitors of the spliceosome that target the SF3B1 protein component of complex A lead to the accumulation of cells in the G1 and G2/M phases of the cell cycle. Here we performed a comprehensive flow cytometry analysis of the effects of isoginkgetin (IGG), a natural compound that interferes with spliceosome assembly at a later step, complex B formation. We found that IGG slowed cell cycle progression in multiple phases of the cell cycle (G1, S and G2) but not M phase. This pattern was somewhat similar to but distinguishable from changes associated with an SF3B1 inhibitor, pladienolide B (PB). Both drugs led to a significant decrease in nascent DNA synthesis in S phase, indicative of an S phase arrest. However, IGG led to a much more prominent S phase arrest than PB while PB exhibited a more pronounced G1 arrest that decreased the proportion of cells in S phase as well. We also found that both drugs led to a comparable decrease in the proportion of cells in M phase. This work indicates that spliceosome inhibitors affect multiple phases of the cell cycle and that some of these effects vary in an agent-specific manner despite the fact that they target splicing at similar stages of spliceosome assembly. PMID- 29338027 TI - Distribution of cone density, spacing and arrangement in adult healthy retinas with adaptive optics flood illumination. AB - The aim of this article is to analyse cone density, spacing and arrangement using an adaptive optics flood illumination retina camera (rtx1TM) on a healthy population. Cone density, cone spacing and packing arrangements were measured on the right retinas of 109 subjects at 2 degrees , 3 degrees , 4 degrees , 5 degrees and 6 degrees of eccentricity along 4 meridians. The effects of eccentricity, meridian, axial length, spherical equivalent, gender and age were evaluated. Cone density decreased on average from 28 884 +/- 3 692 cones/mm2, at 2 degrees of eccentricity, to 15 843 +/- 1 598 cones/mm2 at 6 degrees . A strong inter-individual variation, especially at 2 degrees , was observed. No important difference of cone density was observed between the nasal and temporal meridians or between the superior and inferior meridians. However, the horizontal and vertical meridians differed by around 14% (T-test, p<0.0001). Cone density, expressed in units of area, decreased as a function of axial length (r2 = 0.60), but remained constant (r2 = 0.05) when cone density is expressed in terms of visual angle supporting the hypothesis that the retina is stretched during the elongation of the eyeball. Gender did not modify the cone distribution. Cone density was slightly modified by age but only at 2 degrees . The older group showed a smaller density (7%). Cone spacing increased from 6,49 +/- 0,42 MUm to 8,72 +/- 0,45 MUm respectively between 2 degrees and 6 degrees of eccentricity. The mosaic of the retina is mainly triangularly arranged (i.e. cells with 5 to 7 neighbors) from 2 degrees to 6 degrees . Around half of the cells had 6 neighbors. PMID- 29338028 TI - Does providing more services increase the primary hospitals' revenue? An assessment of national essential medicine policy based on 2,675 counties in China. AB - OBJECTIVE: To understand whether the increased outpatient service provision (OSP) brings in enough additional income (excluding income from essential medicine) for primary hospitals (INCOME) to compensate for reduced costs of medicine. METHODS: The two outcomes, annual OSP and INCOME for the period of 2008-2012, were collected from 34,506 primary hospitals in 2,675 counties in 31 provinces in China by the national surveillance system. The data had a four-level hierarchical structure; time points were nested within primary hospital, hospitals within county, and counties within province. We fitted bivariate five-level random effects regression models to examine correlations between OSP and INCOME in terms of their mean values and dose-response effects of the essential medicine policy (EMP). We adjusted for the effects of time period and selected hospital resources. FINDINGS: The estimated correlation coefficients between the two outcomes' mean values were strongly positive among provinces (r = 0.910), moderately positive among counties (r = 0.380), and none among hospitals (r = 0.002) and time (r = 0.007). The correlation between their policy effects was weakly positive among provinces (r = 0.234), but none at the county and hospital levels. However, there were markedly negative correlation coefficients between the mean and policy effects at -0.328 for OSP and -0.541 for INCOME at the hospital level. CONCLUSION: There was no evidence to suggest an association between the two outcomes in terms of their mean values and dose-response effects of EMP at the hospital level. This indicated that increased OSP did not bring enough additional INCOME. Sustainable mechanisms to compensate primary hospitals are needed. PMID- 29338029 TI - Implicit learning deficit in children with Duchenne muscular dystrophy: Evidence for a cerebellar cognitive impairment? AB - This study aimed at comparing implicit sequence learning in individuals affected by Duchenne Muscular Dystrophy without intellectual disability and age-matched typically developing children. A modified version of the Serial Reaction Time task was administered to 32 Duchenne children and 37 controls of comparable chronological age. The Duchenne group showed a reduced rate of implicit learning even if in the absence of global intellectual disability. This finding provides further evidence of the involvement of specific aspects of cognitive function in Duchenne muscular dystrophy and on its possible neurobiological substrate. PMID- 29338030 TI - Incidence, microbiology, and outcomes of endophthalmitis after 111,876 pars plana vitrectomies at a single, tertiary eye care hospital. AB - PURPOSE: To describe the incidence, risk factors, clinical presentation, causative organisms, and outcomes in patients with endophthalmitis following pars plana vitrectomy (20G and minimally invasive vitrectomy surgery (MIVS). METHODS: Of 111,876 vitrectomies (70,585 20-G 41,291 MIVS) performed, 45 cases developed acute-onset, postoperative endophthalmitis. RESULTS: The rate of culture positive and culture negative endophthalmitis was 0.021% (2.1/10,000 surgeries) and 0.019% (1.9/10,000 surgeries) overall, 0.031% (3.1/10,000 surgeries) and 0.025% (2.5/10,000 surgeries) in 20G, and 0.005% (0.5/10,000 surgeries) and 0.007% (0.7/10,000 surgeries) in the MIVS group respectively. Potential predisposing factors were as follows: diabetes, 46.7%; vitrectomy for vascular retinopathies, 44.4%; and vitrectomy combined with anterior segment surgeries, 35.5%. The culture proven rates were 53.3% overall, 55.0% for 20G and 40.0% for MIVS. The most common organism was Pseudomonas aeruginosa for 20G. Klebsiella and Staphylococcus aureus were isolated in the two culture positive cases in MIVS group. The follow-up period for the patients with endophthalmitis was 586.14 +/- 825.15 days. Seven were lost to follow up beyond one week. Of the remaining 38, 13 (34.2%) cases had a favorable visual outcome (i.e., best-corrected visual acuity [BCVA] > 5/200) and 24 (63.2%) had unfavorable visual outcome (BCVA < 5/200). Group with culture test results negative had significantly better outcomes (P < 0.05) as compared to those with positive. CONCLUSIONS: MIVS does not increase the risk of endophthalmitis. Outcomes are poor despite appropriate treatment, particularly in cases with culture results positive. PMID- 29338031 TI - Pre-existing malignancy results in increased prevalence of distinct populations of CD4+ T cells during sepsis. AB - The presence of pre-existing malignancy in murine hosts results in increased immune dysregulation and risk of mortality following a septic insult. Based on the known systemic immunologic changes that occur in cancer hosts, we hypothesized that the presence of pre-existing malignancy would result in phenotypic and functional changes in CD4+ T cell responses following sepsis. In order to conduct a non-biased, unsupervised analysis of phenotypic differences between CD4+ T cell compartments, cohorts of mice were injected with LLC1 tumor cells and tumors were allowed to grow for 3 weeks. These cancer hosts and age matched non-cancer controls were then subjected to CLP. Splenocytes were harvested at 24h post CLP and flow cytometry and SPADE (Spanning-tree Progression Analysis of Density-normalized Events) were used to analyze populations of CD4+ cells most different between the two groups. Results indicated that relative to non-cancer controls, cancer mice contained more resting memory CD4+ T cells, more activated CD4+ effectors, and fewer naive CD4+ T cells during sepsis, suggesting that the CD4+ T cell compartment in cancer septic hosts is one of increased activation and differentiation. Moreover, cancer septic animals exhibited expansion of two distinct subsets of CD4+ T cells relative to previously healthy septic controls. Specifically, we identified increases in both a PD-1hi population and a distinct 2B4hi BTLAhi LAG-3hi population in cancer septic animals. By combining phenotypic analysis of exhaustion markers with functional analysis of cytokine production, we found that PD-1+ CD4+ cells in cancer hosts failed to make any cytokines following CLP, while the 2B4+ PD-1lo cells in cancer mice secreted increased TNF during sepsis. In sum, the immunophenotypic landscape of cancer septic animals is characterized by both increased CD4+ T cell activation and exhaustion, findings that may underlie the observed increased mortality in mice with pre-existing malignancy following sepsis. PMID- 29338032 TI - Perceptions of healthcare quality in Ghana: Does health insurance status matter? AB - This study's objective is to provide an alternative explanation for the low enrolment in health insurance in Ghana by analysing differences in perceptions between the insured and uninsured of the non-technical quality of healthcare. It further explores the association between insurance status and perception of healthcare quality to ascertain whether insurance status matters in the perception of healthcare quality. Data from a survey of 1,903 households living in the catchment area of 64 health centres were used for the analysis. Two sample independent t-tests were employed to compare the average perceptions of the insured and uninsured on seven indicators of non-technical quality of healthcare. A generalised ordered logit regression, controlling for socio-economic characteristics and clustering at the health facility level, tested the association between insurance status and perceived quality of healthcare. The perceptions of the insured were found to be significantly more negative than the uninsured and those of the previously insured were significantly more negative than the never insured. Being insured was associated with a significantly lower perception of healthcare quality. Thus, once people are insured, they tend to perceive the quality of healthcare they receive as poor compared to those without insurance. This study demonstrated that health insurance status matters in the perceptions of healthcare quality. The findings also imply that perceptions of healthcare quality may be shaped by individual experiences at the health facilities, where the insured and uninsured may be treated differently. Health insurance then becomes less attractive due to the poor perception of the healthcare quality provided to individuals with insurance, resulting in low demand for health insurance in Ghana. Policy makers in Ghana should consider redesigning, reorganizing, and reengineering the National Healthcare Insurance Scheme to ensure the provision of better quality healthcare for both the insured and uninsured. PMID- 29338035 TI - Genome wide identification of wheat and Brachypodium type one protein phosphatases and functional characterization of durum wheat TdPP1a. AB - Reversible phosphorylation is an essential mechanism regulating signal transduction during development and environmental stress responses. An important number of dephosphorylation events in the cell are catalyzed by type one protein phosphatases (PP1), which catalytic activity is driven by the binding of regulatory proteins that control their substrate specificity or subcellular localization. Plants harbor several PP1 isoforms accounting for large functional redundancies. While animal PP1s were reported to play relevant roles in controlling multiple cellular processes, plant orthologs remain poorly studied. To decipher the role of plant PP1s, we compared PP1 genes from three monocot species, Brachypodium, common wheat and rice at the genomic and transcriptomic levels. To gain more insight into the wheat PP1 proteins, we identified and characterized TdPP1a, the first wheat type one protein phosphatase from a Tunisian durum wheat variety Oum Rabiaa3. TdPP1a is highly conserved in sequence and structure when compared to mammalian, yeast and other plant PP1s. We demonstrate that TdPP1a is an active, metallo-dependent phosphatase in vitro and is able to interact with AtI2, a typical regulator of PP1 functions. Also, TdPP1a is capable to complement the heat stress sensitivity of the yeast mutant indicating that TdPP1a is functional also in vivo. Moreover, transient expression of TdPP1a::GFP in tobacco leaves revealed that it is ubiquitously distributed within the cell, with a strong accumulation in the nucleus. Finally, transcriptional analyses showed similar expression levels in roots and leaves of durum wheat seedlings. Interestingly, the expression in leaves is significantly induced following salinity stress, suggesting a potential role of TdPP1a in wheat salt stress response. PMID- 29338034 TI - Clonal growth strategy, diversity and structure: A spatiotemporal response to sedimentation in tropical Cyperus papyrus swamps. AB - Land degradation and soil erosion in the upper catchments of tropical lakes fringed by papyrus vegetation can result in a sediment load gradient from land to lakeward. Understanding the dynamics of clonal modules (ramets and genets) and growth strategies of plants on such a gradient in both space and time is critical for exploring a species adaptation and processes regulating population structure and differentiation. We assessed the spatial and temporal dynamics in clonal growth, diversity, and structure of an emergent macrophyte, Cyperus papyrus (papyrus), in response to two contrasting sedimentation regimes by combining morphological traits and genotype data using 20 microsatellite markers. A total of 636 ramets from six permanent plots (18 x 30 m) in three Ethiopian papyrus swamps, each with discrete sedimentation regimes (high vs. low) were sampled for two years. We found that ramets under the high sedimentation regime (HSR) were significantly clumped and denser than the sparse and spreading ramets under the low sedimentation regime (LSR). The HSR resulted in significantly different ramets with short culm height and girth diameter as compared to the LSR. These results indicated that C. papyrus ameliorates the effect of sedimentation by shifting clonal growth strategy from guerrilla (in LSR) to phalanx (in HSR). Clonal richness, size, dominance, and clonal subrange differed significantly between sediment regimes and studied time periods. Each swamp under HSR revealed a significantly high clonal richness (R = 0.80) as compared to the LSR (R = 0.48). Such discrepancy in clonal richness reflected the occurrence of initial and repeated seedling recruitment strategies as a response to different sedimentation regimes. Overall, our spatial and short-term temporal observations highlighted that HSR enhances clonal richness and decreases clonal subrange owing to repeated seedling recruitment and genets turnover. PMID- 29338033 TI - Intermittent, low dose carbon monoxide exposure enhances survival and dopaminergic differentiation of human neural stem cells. AB - Exploratory studies using human fetal tissue have suggested that intrastriatal transplantation of dopaminergic neurons may become a future treatment for patients with Parkinson's disease. However, the use of human fetal tissue is compromised by ethical, regulatory and practical concerns. Human stem cells constitute an alternative source of cells for transplantation in Parkinson's disease, but efficient protocols for controlled dopaminergic differentiation need to be developed. Short-term, low-level carbon monoxide (CO) exposure has been shown to affect signaling in several tissues, resulting in both protection and generation of reactive oxygen species. The present study investigated the effect of CO produced by a novel CO-releasing molecule on dopaminergic differentiation of human neural stem cells. Short-term exposure to 25 ppm CO at days 0 and 4 significantly increased the relative content of beta-tubulin III-immunoreactive immature neurons and tyrosine hydroxylase expressing catecholaminergic neurons, as assessed 6 days after differentiation. Also the number of microtubule associated protein 2-positive mature neurons had increased significantly. Moreover, the content of apoptotic cells (Caspase3) was reduced, whereas the expression of a cell proliferation marker (Ki67) was left unchanged. Increased expression of hypoxia inducible factor-1alpha and production of reactive oxygen species (ROS) in cultures exposed to CO may suggest a mechanism involving mitochondrial alterations and generation of ROS. In conclusion, the present procedure using controlled, short-term CO exposure allows efficient dopaminergic differentiation of human neural stem cells at low cost and may as such be useful for derivation of cells for experimental studies and future development of donor cells for transplantation in Parkinson's disease. PMID- 29338036 TI - Static magnetic field enhances the anticancer efficacy of capsaicin on HepG2 cells via capsaicin receptor TRPV1. AB - Static magnetic field (SMF) has shown some possibilities for cancer therapies. In particular, the combinational effect between SMF and anti-cancer drugs has drawn scientists' attentions in recent years. However, the underlying mechanism for the drug-specific synergistic effect is far from being understood. Besides, the drugs used are all conventional chemotherapy drugs, which may cause unpleasant side effects. In this study, our results demonstrate for the first time that SMF could enhance the anti-cancer effect of natural compound, capsaicin, on HepG2 cancer cells through the mitochondria-dependent apoptosis pathway. We found that the synergistic effect could be due to that SMF increased the binding efficiency of capsaicin for the TRPV1 channel. These findings may provide a support to develop an application of SMF for cancer therapy. The present study offers the first trial in combining SMF with natural compound on anti-cancer treatment, which provides additional insight into the interaction between SMF and anti-cancer drugs and opens the door for the development of new strategies in fighting cancer with minimum cytotoxicity and side effects. PMID- 29338037 TI - Stentless vs. stented bioprosthesis for aortic valve replacement: A case matched comparison of long-term follow-up and subgroup analysis of patients with native valve endocarditis. AB - BACKGROUND: Current retrospective evidence suggests similar clinical and superior hemodynamic outcomes of the Sorin Freedom Solo stentless aortic valve (SFS) (LivaNova PLC, London, UK) compared to the Carpentier Edwards Perimount stented aortic valve (CEP) (Edwards Lifesciences Inc., Irvine, California, USA). To date, no reports exist describing case-matched long-term outcomes and analysis for treatment of native valve endocarditis (NVE). METHODS: From 2004 through 2014, 77 consecutive patients (study group, 59.7% male, 68.9 +/- 12.5 years, logEuroSCORE II 7.6 +/- 12.3%) received surgical aortic valve replacement (SAVR) with the SFS. A control group of patients after SAVR with the CEP was retrieved from our database and matched to the study group regarding 15 parameters including preoperative endocarditis. Acute perioperative outcomes and follow-up data (mean follow-up time 48.7+/-29.8 months, 95% complete) were retrospectively analyzed. RESULTS: No differences in early mortality occurred during 30-day follow up (3/77; 3.9% vs. 4/77; 5.2%; p = 0.699). Echocardiographic findings revealed lower postprocedural transvalvular pressure gradients (max. 17.0 +/- 8.2 vs. 24.5 +/- 9.2 mmHg, p< 0.001/ mean pressure of 8.4 +/- 4.1 vs. 13.1 +/- 5.9 mmHg, p< 0.001) in the SFS group. Structural valve degeneration (SVD) (5.2% vs. 0%; p = 0.04) and valve explantation due to SVD or prosthetic valve endocarditis (PVE) (9.1% vs. 1.3%; p = 0.04) was more frequent in the SFS group. All-cause mortality during follow-up was 20.8% vs. 14.3% (p = 0.397). When patients were divided into subgroups of NVE and respective utilized bioprosthesis, the SFS presented impaired outcomes regarding mortality in NVE cases (p = 0.031). CONCLUSIONS: The hemodynamic superiority of the SFS was confirmed in this comparison. However, clinical outcomes in terms of SVD and PVE rates, as well as survival after NVE, were inferior in this study. Therefore, we are reluctant to recommend utilization of the SFS for treatment of NVE. PMID- 29338038 TI - Does the leading pharmaceutical reform in China really solve the issue of overly expensive healthcare services? Evidence from an empirical study. AB - BACKGROUND: Healthcare system reform of Sanming city has become a leading healthcare reform model in China. It has developed a rigorous pharmaceutical reform consisted of the Zero Mark-up Drug Policy and the Centralized Procurement of Medicine Policy to bring down drug expenses and total health expenditures. However, despite the credit and much attention have been given to Sanming's pharmaceutical reform, its impact still remains unclear. Therefore, the purpose of this study was to explore the impact of the pharmaceutical reform of Sanming on both drug and total health expenditures. METHODS: Interrupted time series analysis with three segments divided by two intervention points was employed to evaluate the impact of the pharmaceutical reform. Segment 1 was the pre-reform period which captured the baseline information. Segment 2 occurred after the first intervention point when the Zero Mark-up Drug Policy was implemented, whereas Segment 3 was after the implementation of the Centralized Procurement of Medicine Policy. Primary outcomes are outpatient drug expenditure, outpatient total health expenditure, inpatient drug expenditure, and inpatient total health expenditure. Data spanning from May 2012 to May 2014 are included. RESULTS: Both drug and total health expenditures exhibited rising trends before any policy was carried out. The launch of Zero Mark-up Drug Policy led to significant instant reductions in levels of outpatient drug expenditure (coefficient = -6,602.99, p<0.01), outpatient total health expenditure (coefficient = -9,958.58, p<0.05), inpatient drug expenditure (coefficient = -7,520.90, p<0.01), and inpatient total health expenditure (coefficient = -16,737, p<0.01). Moreover, the previous upward trends were changed into downward trends for inpatient drug expenditure (coefficient = -2,747.02, p = 0.00) and total health expenditure (coefficient = 3,069.29, p = 0.12). However, after the implementation of Centralized Procurement of Medicine Policy, we observed no significant instant level changes and also, the inpatient drug expenditure (coefficient = 372.95, p = 0.01) and total health expenditure (coefficient = 788.76, p = 0.06) resumed upward trends again. CONCLUSIONS: Although the pharmaceutical reform could control or reduced drug expenditure and total health expenditure in short term, expenditures gradually resumed growing again and reached or even exceeded their baseline levels of pre reform period, indicating the effect became weakened or even faded out in long term. In all, the pharmaceutical reform as a whole failed to meet its goal of combating sharp growth of drug and total health expenditure. PMID- 29338039 TI - STAT3 expression by myeloid cells is detrimental for the T- cell-mediated control of infection with Mycobacterium tuberculosis. AB - STAT3 is a master regulator of the immune responses. Here we show that M. tuberculosis-infected stat3fl/fl lysm cre mice, defective for STAT3 in myeloid cells, contained lower bacterial load in lungs and spleens, reduced granuloma extension but higher levels of pulmonary neutrophils. STAT3-deficient macrophages showed no improved control of intracellular mycobacterial growth. Instead, protection associated to elevated ability of stat3fl/fl lysm cre antigen presenting cells (APCs) to release IL-6 and IL-23 and to stimulate IL-17 secretion by mycobacteria-specific T cells. The increased IL-17 secretion accounted for the improved control of infection since neutralization of IL-17 receptor A in stat3fl/fl lysm cre mice hampered bacterial control. APCs lacking SOCS3, which inhibits STAT3 activation via several cytokine receptors, were poor inducers of priming and of the IL-17 production by mycobacteria-specific T cells. In agreement, socs3fl/fl cd11c cre mice deficient of SOCS3 in DCs showed increased susceptibility to M. tuberculosis infection. While STAT3 in APCs hampered IL-17 responses, STAT3 in mycobacteria-specific T cells was critical for IL-17 secretion, while SOCS3 in T cells impeded IL-17 secretion. Altogether, STAT3 signalling in myeloid cells is deleterious in the control of infection with M. tuberculosis. PMID- 29338040 TI - Identification and expression analyses of WRKY genes reveal their involvement in growth and abiotic stress response in watermelon (Citrullus lanatus). AB - Despite identification of WRKY family genes in numerous plant species, a little is known about WRKY genes in watermelon, one of the most economically important fruit crops around the world. Here, we identified a total of 63 putative WRKY genes in watermelon and classified them into three major groups (I-III) and five subgroups (IIa-IIe) in group II. The structure analysis indicated that ClWRKYs with different WRKY domains or motifs may play different roles by regulating respective target genes. The expressions of ClWRKYs in different tissues indicate that they are involved in various tissue growth and development. Furthermore, the diverse responses of ClWRKYs to drought, salt, or cold stress suggest that they positively or negatively affect plant tolerance to various abiotic stresses. In addition, the altered expression patterns of ClWRKYs in response to phytohormones such as, ABA, SA, MeJA, and ETH, imply the occurrence of complex cross-talks between ClWRKYs and plant hormone signals in regulating plant physiological and biological processes. Taken together, our findings provide valuable clues to further explore the function and regulatory mechanisms of ClWRKY genes in watermelon growth, development, and adaption to environmental stresses. PMID- 29338041 TI - Cadherins in the retinal pigment epithelium (RPE) revisited: P-cadherin is the highly dominant cadherin expressed in human and mouse RPE in vivo. AB - The retinal pigment epithelium (RPE) supports the health and function of retinal photoreceptors and is essential for normal vision. RPE cells are post-mitotic, terminally differentiated, and polarized epithelial cells. In pathological conditions, however, they lose their epithelial integrity, become dysfunctional, even dedifferentiate, and ultimately die. The integrity of epithelial cells is maintained, in part, by adherens junctions, which are composed of cadherin homodimers and p120-, beta-, and alpha-catenins linking to actin filaments. While E-cadherin is the major cadherin for forming the epithelial phenotype in most epithelial cell types, it has been reported that cadherin expression in RPE cells is different from other epithelial cells based on results with cultured RPE cells. In this study, we revisited the expression of cadherins in the RPE to clarify their relative contribution by measuring the absolute quantity of cDNAs produced from mRNAs of three classical cadherins (E-, N-, and P-cadherins) in the RPE in vivo. We found that P-cadherin (CDH3) is highly dominant in both mouse and human RPE in situ. The degree of dominance of P-cadherin is surprisingly large, with mouse Cdh3 and human CDH3 accounting for 82-85% and 92-93% of the total of the three cadherin mRNAs, respectively. We confirmed the expression of P-cadherin protein at the cell-cell border of mouse RPE in situ by immunofluorescence. Furthermore, we found that oxidative stress induces dissociation of P-cadherin and beta-catenin from the cell membrane and subsequent translocation of beta catenin into the nucleus, resulting in activation of the canonical Wnt/beta catenin pathway. This is the first report of absolute comparison of the expression of three cadherins in the RPE, and the results suggest that the physiological role of P-cadherin in the RPE needs to be reevaluated. PMID- 29338042 TI - A pharmacological screen for compounds that rescue the developmental lethality of a Drosophila ATM mutant. AB - Ataxia-telangiectasia (A-T) is a neurodegenerative disease caused by mutation of the A-T mutated (ATM) gene. ATM encodes a protein kinase that is activated by DNA damage and phosphorylates many proteins, including those involved in DNA repair, cell cycle control, and apoptosis. Characteristic biological and molecular functions of ATM observed in mammals are conserved in Drosophila melanogaster. As an example, conditional loss-of-function ATM alleles in flies cause progressive neurodegeneration through activation of the innate immune response. However, unlike in mammals, null alleles of ATM in flies cause lethality during development. With the goals of understanding biological and molecular roles of ATM in a whole animal and identifying candidate therapeutics for A-T, we performed a screen of 2400 compounds, including FDA-approved drugs, natural products, and bioactive compounds, for modifiers of the developmental lethality caused by a temperature-sensitive ATM allele (ATM8) that has reduced kinase activity at non-permissive temperatures. Ten compounds reproducibly suppressed the developmental lethality of ATM8 flies, including Ronnel, which is an organophosphate. Ronnel and other suppressor compounds are known to cause mitochondrial dysfunction or to inhibit the enzyme acetylcholinesterase, which controls the levels of the neurotransmitter acetylcholine, suggesting that detrimental consequences of reduced ATM kinase activity can be rescued by inhibiting the function of mitochondria or increasing acetylcholine levels. We carried out further studies of Ronnel because, unlike the other compounds that suppressed the developmental lethality of homozygous ATM8 flies, Ronnel was toxic to the development of heterozygous ATM8 flies. Ronnel did not affect the innate immune response of ATM8 flies, and it further increased the already high levels of DNA damage in brains of ATM8 flies, but its effects were not harmful to the lifespan of rescued ATM8 flies. These results provide new leads for understanding the biological and molecular roles of ATM and for the treatment of A-T. PMID- 29338043 TI - Search for independent (beta/alpha)4 subdomains in a (beta/alpha)8 barrel beta glucosidase. AB - Proteins that fold as (beta/alpha)8 barrels are thought to have evolved from half barrels that underwent duplication and fusion events. The evidence is particularly clear for small barrels, which have almost identical halves. Additionally, computational calculations of the thermodynamic stability of these structures in the presence of denaturants have revealed that (beta/alpha)8 barrels contain two subunits or domains corresponding to half-barrels. Hence, within (beta/alpha)8 barrels, half-barrels are self-contained units. Here, we tested this hypothesis using beta-glucosidase from the bacterium Thermotoga maritima (bglTm), which has a (beta/alpha)8 barrel structure. Mutations were introduced to disrupt the noncovalent contacts between its halves and reveal the presence of two domains within bglTm, thus resulting in the creation of mutants T1 (containing W12A and I217A mutations) and T2 (containing W12A, H195A, I217A and F404A mutations). Mutants T1 and T2 were properly folded, as indicated by their fluorescence spectra and enzyme kinetic parameters. T1 and wild-type bglTm were equally stable, as shown by the results of thermal inactivation, differential scanning fluorimetry and guanidine hydrochloride denaturation experiments. However, T2 showed a first-order inactivation at 80 degrees C, a single melting temperature of 82 degrees C and only one transition concentration (c50) in 2.4 M guanidine hydrochloride. Additionally, T1 and T2 exhibited a cooperative denaturation process that followed a two-state model (m-values equal to 1.4 and 1.6 kcal/mol/M, respectively), similar to that of wild-type bglTm (1.2 kcal/mol/M). Hence, T1 and T2 each denatured as a single unit, although they contained different degrees of disruption between their halves. In conclusion, bglTm halves are equivalent in terms of their thermal and chemical stability; thus, their separate contributions to (beta/alpha)8 barrel unfolding cannot be disentangled. PMID- 29338046 TI - Correction: Women's health in the occupied Palestinian territories: Contextual influences on subjective and objective health measures. AB - [This corrects the article DOI: 10.1371/journal.pone.0186610.]. PMID- 29338044 TI - Probing the changes in gene expression due to alpha-crystallin mutations in mouse models of hereditary human cataract. AB - The mammalian eye lens expresses a high concentration of crystallins (alpha, beta and gamma-crystallins) to maintain the refractive index essential for lens transparency. Crystallins are long-lived proteins that do not turnover throughout life. The structural destabilization of crystallins by UV exposure, glycation, oxidative stress and mutations in crystallin genes leads to protein aggregation and development of cataracts. Several destabilizing mutations in crystallin genes are linked with human autosomal dominant hereditary cataracts. To investigate the mechanism by which the alpha-crystallin mutations Cryaa-R49C and Cryab-R120G lead to cataract formation, we determined whether these mutations cause an altered expression of specific transcripts in the lens at an early postnatal age by RNA seq analysis. Using knock-in mouse models previously generated in our laboratory, in the present work, we identified genes that exhibited altered abundance in the mutant lenses, including decreased transcripts for Clic5, an intracellular water channel in Cryaa-R49C heterozygous mutant lenses, and increased transcripts for Eno1b in Cryab-R120G heterozygous mutant lenses. In addition, RNA-seq analysis revealed increased histones H2B, H2A, and H4 gene expression in Cryaa-R49C mutant lenses, suggesting that the alphaA-crystallin mutation regulates histone expression via a transcriptional mechanism. Additionally, these studies confirmed the increased expression of histones H2B, H2A, and H4 by proteomic analysis of Cryaa-R49C knock-in and Cryaa;Cryab gene knockout lenses reported previously. Taken together, these findings offer additional insight into the early transcriptional changes caused by Cryaa and Cryab mutations associated with autosomal dominant human cataracts, and indicate that the transcript levels of certain genes are affected by the expression of mutant alpha-crystallin in vivo. PMID- 29338045 TI - Protection induced by virus-like particle vaccine containing tandem repeat gene of respiratory syncytial virus G protein. AB - Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract illness in infants, young children and the elderly. However, there is no licensed vaccine available against RSV infection. In this study, we generated virus-like particle (VLP) vaccine and investigated the vaccine efficacy in a mouse model. For VLP vaccines, tandem gene (1-780 bp) for V1 VLPs and tandem repeat gene (repeated 450-780 bp) for V5 VLPs were constructed in pFastBacTM vectors, respectively. Influenza matrix protein 1 (M1) was used as a core protein in the VLPs. Notably, upon challenge infection, significantly lower virus loads were measured in the lung of mice immunized with V1 or V5 VLPs compared to those of naive mice and formalin-inactivated RSV immunized control mice. In particular, V5 VLPs immunization showed significantly lower virus titers than V1 VLPs immunization. Furthermore, V5 VLPs immunization elicited increased memory B cells responses in the spleen. These results indicated that V5 VLP vaccine containing tandem repeat gene protein provided better protection than V1 VLPs with significantly decreased inflammation in the lungs. Thus, V5 VLPs could be a potential vaccine candidate against RSV. PMID- 29338047 TI - Amino acid substitutions affecting aspartic acid 605 and valine 606 decrease the interaction strength between the influenza virus RNA polymerase PB2 '627' domain and the viral nucleoprotein. AB - The influenza virus RNA genome is transcribed and replicated in the context of the viral ribonucleoprotein (vRNP) complex by the viral RNA polymerase. The nucleoprotein (NP) is the structural component of the vRNP providing a scaffold for the viral RNA. In the vRNP as well as during transcription and replication the viral polymerase interacts with NP but it is unclear which parts of the polymerase and NP mediate these interactions. Previously the C-terminal '627' domain (amino acids 538-693) of PB2 was shown to interact with NP. Here we report that a fragment encompassing amino acids 146-185 of NP is sufficient to mediate this interaction. Using NMR chemical shift perturbation assays we show that amino acid region 601 to 607 of the PB2 '627' domain interacts with this fragment of NP. Substitutions of these PB2 amino acids resulted in diminished RNP activity and surface plasmon resonance assays showed that amino acids D605 was essential for the interaction with NP and V606 may also play a partial role in the interaction. Collectively these results reveal a possible interaction surface between NP and the PB2 subunit of the RNA polymerase complex. PMID- 29338048 TI - Ebola virus requires a host scramblase for externalization of phosphatidylserine on the surface of viral particles. AB - Cell surface receptors for phosphatidylserine contribute to the entry of Ebola virus (EBOV) particles, indicating that the presence of phosphatidylserine in the envelope of EBOV is important for the internalization of EBOV particles. Phosphatidylserine is typically distributed in the inner layer of the plasma membrane in normal cells. Progeny virions bud from the plasma membrane of infected cells, suggesting that phosphatidylserine is likely flipped to the outer leaflet of the plasma membrane in infected cells for EBOV virions to acquire it. Currently, the intracellular dynamics of phosphatidylserine during EBOV infection are poorly understood. Here, we explored the role of XK-related protein (Xkr) 8, which is a scramblase responsible for exposure of phosphatidylserine in the plasma membrane of apoptotic cells, to understand its significance in phosphatidylserine-dependent entry of EBOV. We found that Xkr8 and transiently expressed EBOV glycoprotein GP often co-localized in intracellular vesicles and the plasma membrane. We also found that co-expression of GP and viral major matrix protein VP40 promoted incorporation of Xkr8 into ebolavirus-like particles (VLPs) and exposure of phosphatidylserine on their surface, although only a limited amount of phosphatidylserine was exposed on the surface of the cells expressing GP and/or VP40. Downregulating Xkr8 or blocking caspase-mediated Xkr8 activation did not affect VLP production, but they reduced the amount of phosphatidylserine on the VLPs and their uptake in recipient cells. Taken together, our findings indicate that Xkr8 is trafficked to budding sites via GP containing vesicles, is incorporated into VLPs, and then promote the entry of the released EBOV to cells in a phosphatidylserine-dependent manner. PMID- 29338050 TI - Correction: Utilization of urea and expression profiles of related genes in the dinoflagellate Prorocentrum donghaiense. AB - [This corrects the article DOI: 10.1371/journal.pone.0187837.]. PMID- 29338049 TI - Contribution of the ankle-brachial index to improve the prediction of coronary risk: The ARTPER cohort. AB - BACKGROUND: The different cardiovascular risk prediction scales currently available are not sufficiently sensitive. AIM: The aim of the present study was to analyze the contribution of the ankle-brachial index (ABI) added to the Framingham and REGICOR risk scales for the reclassification of cardiovascular risk after a 9-year follow up of a Mediterranean population with low cardiovascular risk. DESIGN AND SETTING: A population-based prospective cohort study was performed in the province of Barcelona, Spain. METHOD: A total of 3,786 subjects >49 years were recruited from 2006-2008. Baseline ABI was performed and cardiovascular risk was calculated with the Framingham and REGICOR scales. The participants were followed until November 2016 by telephone and review of the clinical history every 6 months to confirm the possible appearance of cardiovascular events. RESULTS: 2,716 individuals participated in the study. There were 126 incidental cases of first coronary events (5%) during follow up. The incidence of coronary events in patients with ABI <0.9 was 4-fold greater than that of subjects with a normal ABI (17.2/1,000 persons-year versus 4.8/1,000 persons-year). Improvement in the predictive capacity of REGICOR scale was observed on including ABI in the model, obtaining a net reclassification improvement of 7% (95% confidence interval 0%-13%) for REGICOR+ ABI. Framingham + ABI obtained a NRI of 4% (-2%-11%). CONCLUSION: The results of the present study support the addition of the ABI as a tool to help in the reclassification of cardiovascular risk and to confirm the greater incidence of coronary events in patients with ABI < 0.9. PMID- 29338051 TI - Correction: Cordycepin promotes apoptosis in renal carcinoma cells by activating the MKK7-JNK signaling pathway through inhibition of c-FLIPL expression. AB - [This corrects the article DOI: 10.1371/journal.pone.0186489.]. PMID- 29338052 TI - Correction: Diversification dynamics, species sorting, and changes in the functional diversity of marine benthic gastropods during the Pliocene-Quaternary at temperate western South America. AB - [This corrects the article DOI: 10.1371/journal.pone.0187140.]. PMID- 29338053 TI - Selenium regulation of selenoprotein enzyme activity and transcripts in a pilot study with Founder strains from the Collaborative Cross. AB - Rodents and humans have 24-25 selenoproteins, and these proteins contain the 21st amino acid, selenocysteine, incorporated co-translationally into the peptide backbone in a series of reactions dependent on at least 6 unique gene products. In selenium (Se) deficiency, there is differential regulation of selenoprotein expression, whereby levels of some selenoproteins and their transcripts decrease dramatically in Se deficiency, but other selenoprotein transcripts are spared this decrease; the underlying mechanism, however, is not fully understood. To begin explore the genetic basis for this variation in regulation by Se status in a pilot study, we fed Se-deficient or Se-adequate diets (0.005 or 0.2 MUg Se/g, respectively) for eight weeks to the eight Founder strains of the Collaborative Cross. We found rather uniform expression of selenoenzyme activity for glutathione peroxidase (Gpx) 3 in plasma, Gpx1 in red blood cells, and Gpx1, Gpx4, and thioredoxin reductase in liver. In Founder mice, Se deficiency decreased each of these activities to a similar extent. Regulation of selenoprotein transcript expression by Se status was also globally retained intact, with dramatic down-regulation of Gpx1, Selenow, and Selenoh transcripts in all 8 strains of Founder mice. These results indicate that differential regulation of selenoprotein expression by Se status is an essential aspect of Se metabolism and selenoprotein function. A few lone differences in Se regulation were observed for individual selenoproteins in this pilot study, but these differences did not single-out one strain or one selenoprotein that consistently had unique Se regulation of selenoprotein expression. These differences should be affirmed in larger studies; use of the Diversity Outbred and Collaborative Cross strains may help to better define the functions of these selenoproteins. PMID- 29338054 TI - Correction: Selective serotonin reuptake inhibitors and venlafaxine in pregnancy: Changes in drug disposition. AB - [This corrects the article DOI: 10.1371/journal.pone.0181082.]. PMID- 29338056 TI - Context-dependent autoprocessing of human immunodeficiency virus type 1 protease precursors. AB - HIV-1 protease autoprocessing is responsible for liberation of free mature protease (PR) from the Gag-Pol polyprotein precursor. A cell-based model system was previously developed to examine the autoprocessing mechanism of fusion precursors carrying the p6*-PR miniprecursor sandwiched between various proteins or epitopes. We here report that precursor autoprocessing is context-dependent as its activity and outcomes can be modulated by sequences upstream of p6*-PR. This was exemplified by the 26aa maltose binding protein (MBP) signal peptide (SigP) when placed at the N-terminus of a fusion precursor. The mature PRs released from SigP-carrying precursors are resistant to self-degradation whereas those released from SigP-lacking fusion precursors are prone to self-degradation. A H69D mutation in PR abolished autoprocessing of SigP-containing fusion precursors whereas it only partially suppressed autoprocessing of fusion precursors lacking SigP. An autoprocessing deficient GFP fusion precursor with SigP exhibited a subcellular distribution pattern distinct from the one without it in transfected HeLa cells. Furthermore, a SigP fusion precursor carrying a substitution at the P1 position released the mature PR and PR-containing fragments that were different from those released from the precursor carrying the same mutation but lacking SigP. We also examined autoprocessing outcomes in viral particles produced by a NL4-3 derived proviral construct and demonstrated the existence of several PR-containing fragments along with the mature PR. Some of these resembled the SigP precursor autoprocessing outcomes. This finding of context-dependent modulation reveals the complexity of precursor autoprocessing regulation that most likely accompanies sequence variation imposed by the evolution of the upstream Gag moiety. PMID- 29338055 TI - A novel Gerstmann-Straussler-Scheinker disease mutation defines a precursor for amyloidogenic 8 kDa PrP fragments and reveals N-terminal structural changes shared by other GSS alleles. AB - To explore pathogenesis in a young Gerstmann-Straussler-Scheinker Disease (GSS) patient, the corresponding mutation, an eight-residue duplication in the hydrophobic region (HR), was inserted into the wild type mouse PrP gene. Transgenic (Tg) mouse lines expressing this mutation (Tg.HRdup) developed spontaneous neurologic syndromes and brain extracts hastened disease in low expressor Tg.HRdup mice, suggesting de novo formation of prions. While Tg.HRdup mice exhibited spongiform change, PrP aggregates and the anticipated GSS hallmark of a proteinase K (PK)-resistant 8 kDa fragment deriving from the center of PrP, the LGGLGGYV insertion also imparted alterations in PrP's unstructured N terminus, resulting in a 16 kDa species following thermolysin exposure. This species comprises a plausible precursor to the 8 kDa PK-resistant fragment and its detection in adolescent Tg.HRdup mice suggests that an early start to accumulation could account for early disease of the index case. A 16 kDa thermolysin-resistant signature was also found in GSS patients with P102L, A117V, H187R and F198S alleles and has coordinates similar to GSS stop codon mutations. Our data suggest a novel shared pathway of GSS pathogenesis that is fundamentally distinct from that producing structural alterations in the C-terminus of PrP, as observed in other prion diseases such as Creutzfeldt-Jakob Disease and scrapie. PMID- 29338057 TI - RNA-sequencing analysis of fungi-induced transcripts from the bamboo wireworm Melanotus cribricollis (Coleoptera: Elateridae) larvae. AB - Larvae of Melanotus cribricollis, feed on bamboo shoots and roots, causing serious damage to bamboo in Southern China. However, there is currently no effective control measure to limit the population of this underground pest. Previously, a new entomopathogenic fungal strain isolated from M. cribricollis larvae cadavers named Metarhizium pingshaense WP08 showed high pathogenic efficacy indoors, indicated that the fungus could be used as a bio-control measure. So far, the genetic backgrounds of both M. cribricollis and M. pingshaense WP08 were blank. Here, we analyzed the whole transcriptome of M. cribricollis larvae, infected with M. pingshaense WP08 or not, using high throughput next generation sequencing technology. In addition, the transcriptome sequencing of M. pingshaense WP08 was also performed for data separation of those two non-model species. The reliability of the RNA-Seq data was also validated through qRT-PCR experiment. The de novo assembly, functional annotation, sequence comparison of four insect species, and analysis of DEGs, enriched pathways, GO terms and immune related candidate genes were operated. The results indicated that, multiple defense mechanisms of M. cribricollis larvae are initiated to protect against the more serious negative effects caused by fungal infection. To our knowledge, this was the first report of transcriptome analysis of Melanotus spp. infected with a fungus, and it could provide insights to further explore insect-fungi interaction mechanisms. PMID- 29338058 TI - Menstrual and reproductive factors and risk of breast cancer: A case-control study in the Fez region, Morocco. AB - BACKGROUND: Breast cancer is the most common cancer in women worldwide. In the Moroccan context, the role of well-known reproductive factors in breast cancer remains poorly documented. The aim of this study was to explore the relationship between menstrual and reproductive factors and breast cancer risk in Moroccan women in the Fez region. METHODS: A case-control study was conducted at the Hassan II University Hospital of Fez between January 2014 and April 2015. A total of 237 cases of breast cancer and 237 age-matched controls were included. Information on sociodemographic characteristics, menstrual and reproductive history, family history of breast cancer, and lifestyle factors was obtained through a structured questionnaire. Conditional logistic regression models were used to estimate odds ratios and 95% confidence intervals for breast cancer by menstrual and reproductive factors adjusted for potential confounders. RESULTS: Early menarche (OR = 1.60, 95% CI: 1.08-2.38) and nulliparity (OR = 3.77, 95% CI: 1.98-7.30) were significantly related to an increased risk of breast cancer, whereas an early age at first full-term pregnancy was associated with a decreased risk of breast cancer (OR = 0.41, 95% CI: 0.25-0.65). CONCLUSION: The results of this study confirm the role of established reproductive factors for breast cancer in Moroccan women. It identified some susceptible groups at high risk of breast cancer. Preventive interventions and screening should focus on these groups as a priority. These results should be confirmed in a larger, multicenter study. PMID- 29338059 TI - Hemodynamic characteristics of hyperplastic remodeling lesions in cerebral aneurysms. AB - BACKGROUND & PURPOSE: Hyperplastic remodeling (HR) lesions are sometimes found on cerebral aneurysm walls. Atherosclerosis is the results of HR, which may cause an adverse effect on surgical treatment for cerebral aneurysms. Previous studies have demonstrated that atherosclerotic changes had a correlation with certain hemodynamic characteristics. Therefore, we investigated local hemodynamic characteristics of HR lesions of cerebral aneurysms using computational fluid dynamics (CFD). METHODS: Twenty-four cerebral aneurysms were investigated using CFD and intraoperative video recordings. HR lesions and red walls were confirmed on the intraoperative images, and the qualification points were determined on the center of the HR lesions and the red walls. The qualification points were set on the virtual operative images for evaluation of wall shear stress (WSS), normalized WSS (NWSS), oscillatory shear index (OSI), relative residence time (RRT), and aneurysm formation indicator (AFI). These hemodynamic parameters at the qualification points were compared between HR lesions and red walls. RESULTS: HR lesions had lower NWSS, lower AFI, higher OSI and prolonged RRT compared with red walls. From analysis of the receiver-operating characteristic curve for hemodynamic parameters, OSI was the most optimal hemodynamic parameter to predict HR lesions (area under the curve, 0.745; 95% confidence interval, 0.603-0.887; cutoff value, 0.00917; sensitivity, 0.643; specificity, 0.893; P<0.01). With multivariate logistic regression analyses using stepwise method, NWSS was significantly associated with the HR lesions. CONCLUSIONS: Although low NWSS was independently associated with HR lesions, OSI is the most valuable hemodynamic parameter to distinguish HR lesions from red walls. PMID- 29338060 TI - Biofeedback effect of hybrid assistive limb in stroke rehabilitation: A proof of concept study using functional near infrared spectroscopy. AB - INTRODUCTION: Robot-assisted rehabilitation has been increasingly drawing attention in the field of neurorehabilitation. The hybrid assistive limb (HAL) is an exoskeleton robot developed based on the "interactive biofeedback" theory, and several studies have shown its efficacy for patients with stroke. We aimed to investigate the mechanisms of the facilitative effect of neurorehabilitation using a single-joint HAL (HAL-SJ) and functional near-infrared spectroscopy (fNIRS). MATERIALS AND METHODS: Subacute stroke patients admitted to our hospital were assessed in this study for HAL eligibility. We evaluated motor-related cortical activity using an fNIRS system at baseline and immediately after HAL-SJ treatment on the same day. Cortical activity was determined through the relative changes in the hemoglobin concentrations. For statistical analysis, we compared the number of flexion/extension movements before and immediately after HAL-SJ treatment using paired t-test. fNIRS used both the methods of statistical parametric mapping and random effect analysis. RESULTS: We finally included 10 patients (eight men, two women; mean age: 66.8 +/- 12.0 years). The mean number of flexion/extension movements within 15 s increased significantly from 4.2 +/- 3.1 to 5.3 +/- 4.1 immediately after training. fNIRS showed increased cortical activation in the primary motor cortex of the ipsilesional hemisphere immediately after HAL-SJ treatment compared to the baseline condition. CONCLUSIONS: This study is the first to support the concept of the biofeedback effect from the perspective of changes in cortical activity measured with an fNIRS system. The biofeedback effect of HAL immediately increased the task-related cortical activity, and this may address the functional recovery. Further studies are warranted to support our findings. PMID- 29338061 TI - Feasibility of cell-based therapy combined with descemetorhexis for treating Fuchs endothelial corneal dystrophy in rabbit model. AB - Corneal transparency is maintained by the corneal endothelium through its pump and barrier function. Severe corneal endothelial damage results in dysregulation of water flow and eventually causes corneal haziness and deterioration of visual function. In 2013, we initiated clinical research of cell-based therapy for treating corneal decompensation. In that study, we removed an 8-mm diameter section of damaged corneal endothelium without removing Descemet's membrane (the basement membrane of the corneal endothelium) and then injected cultured human corneal endothelial cells (CECs) into the anterior chamber. However, Descemet's membrane exhibits clinically abnormal structural features [i.e., multiple collagenous excrescences (guttae) and thickening] in patients with Fuchs endothelial corneal dystrophy (FECD) and the advanced cornea guttae adversely affects the quality of vision, even in patients without corneal edema. The turnover time of cornea guttae is also not certain. Therefore, we used a rabbit model to evaluate the feasibility of Descemet's membrane removal in the optical zone only, by performing a small 4-mm diameter descemetorhexis prior to CEC injection. We showed that the corneal endothelium is regenerated both on the corneal stroma (the area of Descemet's membrane removal) and on the intact peripheral Descemet's membrane, based on the expression of function-related markers and the restoration of corneal transparency. Recovery of the corneal transparency and central corneal thickness was delayed in areas of Descemet's membrane removal, but the cell density of the regenerated corneal endothelium and the thickness of the central corneal did not differ between the areas with and without residual Descemet's membrane at 14 days after CEC injection. Here, we demonstrate that removal of a pathological Descemet's membrane by a small descemetorhexis is a feasible procedure for use in combination with cell-based therapy. The current strategy might be beneficial for improving visual quality after CEC injection as a treatment for FECD. PMID- 29338062 TI - An imaged-based inverse finite element method to determine in-vivo mechanical properties of the human trabecular meshwork. AB - Aim: Previous studies have shown that the trabecular meshwork (TM) is mechanically stiffer in glaucomatous eyes as compared to normal eyes. It is believed that elevated TM stiffness increases resistance to the aqueous humor outflow, producing increased intraocular pressure (IOP). It would be advantageous to measure TM mechanical properties in vivo, as these properties are believed to play an important role in the pathophysiology of glaucoma and could be useful for identifying potential risk factors. The purpose of this study was to develop a method to estimate in-vivo TM mechanical properties using clinically available exams and computer simulations. Design: Inverse finite element simulation. Methods: A finite element model of the TM was constructed from optical coherence tomography (OCT) images of a healthy volunteer before and during IOP elevation. An axisymmetric model of the TM was then constructed. Images of the TM at a baseline IOP level of 11, and elevated level of 23 mmHg were treated as the undeformed and deformed configurations, respectively. An inverse modeling technique was subsequently used to estimate the TM shear modulus (G). An optimization technique was used to find the shear modulus that minimized the difference between Schlemm's canal area in the in-vivo images and simulations. Results: Upon completion of inverse finite element modeling, the simulated area of the Schlemm's canal changed from 8,889 um2 to 2,088 um2, similar to the experimentally measured areal change of the canal (from 8,889 um2 to 2,100 um2). The calculated value of shear modulus was found to be 1.93 kPa, (implying an approximate Young's modulus of 5.75 kPa), which is consistent with previous ex vivo measurements. Conclusion: The combined imaging and computational simulation technique provides a unique approach to calculate the mechanical properties of the TM in vivo without any surgical intervention. Quantification of such mechanical properties will help us examine the mechanistic role of TM biomechanics in the regulation of IOP in healthy and glaucomatous eyes. PMID- 29338063 TI - Formalizing Knowledge in Multi-Scale Agent-Based Simulations. AB - Multi-scale, agent-based simulations of cellular and tissue biology are increasingly common. These simulations combine and integrate a range of components from different domains. Simulations continuously create, destroy and reorganize constituent elements causing their interactions to dynamically change. For example, the multi-cellular tissue development process coordinates molecular, cellular and tissue scale objects with biochemical, biomechanical, spatial and behavioral processes to form a dynamic network. Different domain specific languages can describe these components in isolation, but cannot describe their interactions. No current programming language is designed to represent in human readable and reusable form the domain specific knowledge contained in these components and interactions. We present a new hybrid programming language paradigm that naturally expresses the complex multi-scale objects and dynamic interactions in a unified way and allows domain knowledge to be captured, searched, formalized, extracted and reused. PMID- 29338065 TI - Corrigendum to "Tooth Reattachment and Palatal Veneer on a Multidisciplinary Approach of Crown Fractures in Upper Central Incisors". AB - [This corrects the article DOI: 10.1155/2017/4702635.]. PMID- 29338064 TI - Reflections on 15 Years in the Global Tobacco Trenches. AB - This paper is based on my 2017 Research Laureate Presentation at the Annual Scientific Meeting of the American Academy of Health Behavior in Tucson, Arizona. It provides a brief overview of the history of the smoking epidemic, and describes my work in global tobacco control, focusing on my experiences over the last 15 years as a co-founder and intervention director of the Syrian Center for Tobacco Studies (SCTS) in Aleppo, Syria. The SCTS is an NIH-funded research center that draws on a broad range of complementary expertise and resources from developed and developing nations to address the tobacco epidemic in the Arab World. The SCTS strives to serve as a model of scientific excellence and commitment to the health of people in the Middle East and beyond. Major research streams using qualitative, epidemiological, clinical lab, and intervention methodologies are reviewed, along with some of the successes and challenges encountered since the SCTS's founding. PMID- 29338066 TI - Endoscopic scoring indices for evaluation of disease activity in ulcerative colitis. AB - BACKGROUND: Endoscopic assessment of mucosal disease activity is routinely used to determine eligibility and response to therapy in clinical trials of ulcerative colitis. The operating properties of the existing endoscopic scoring indices are unclear. OBJECTIVES: A systematic review was undertaken to evaluate the development and operating characteristics of endoscopic scoring indices for the evaluation of ulcerative colitis. SEARCH METHODS: We searched MEDLINE, Embase and CENTRAL from inception to 5 July 2016. We also searched references and conference proceedings (Digestive Disease Week, United European Gastroenterology Week, European Crohn's and Colitis Organization). SELECTION CRITERIA: Any study design (e.g. randomized controlled trials, cohort studies, case series) that evaluated endoscopic indices for evaluation of ulcerative colitis disease activity were considered for inclusion. Eligible participants were adult patients (> 16 years), diagnosed with ulcerative colitis using conventional clinical, radiologic and endoscopic criteria. DATA COLLECTION AND ANALYSIS: Two authors independently reviewed the studies identified from the literature search. These authors also independently extracted and recorded data on the number of patients enrolled; number of patients per treatment arm; patient characteristics including age and gender distribution; endoscopic index; and outcomes such as reliability (intra rater and inter-rater), validity (content, construct, criterion), responsiveness and feasibility. Any disagreements regarding study inclusion or data extraction were resolved by discussion and consensus with a third author. Risk of bias was assessed by determining whether assessors were blinded to clinical information and whether assessors scored the endoscopic index independently. We also assessed the methodological quality of the validation studies using the COSMIN checklist MAIN RESULTS: A total of 23 reports of 20 studies met the pre-defined inclusion criteria and were included in the review. Of the 20 included validation studies, 19 endoscopic scoring indices were assessed, including the Azzolini Classification, Baron Score, Blackstone Endoscopic Interpretation, Chinese Grading System of Ulcerative Colitis, Endoscopic Activty Index, Jeroen Score, Magnifying Colonoscopy Grade, Matts Score, Mayo Clinic Endoscopic Subscore, Modified Baron Score, Modified Mayo Clinic Endoscopic Subscore, Osada Score, Rachmilewtiz Endoscopic Score, St. Mark's Index, Ulcerative Colitis Colonoscopic Index of Serverity (UCCIS), endoscopic component of the Ulcerative Colitis Disease Activity Index (UCDAI), Ulcerative Colitis Endoscopic Index of Severity (UCEIS), Witts Sigmoidoscopic Score and Watson Grade. The individuals who performed the endoscopic scoring were blinded to clinical and/or histologic information in ten of the included studies, not blinded to clinical and/or histologic information in one of the included studies, and it was unclear whether blinding occurred in the remaining nine included studies. Independent observation was confirmed in four of the included studies, unclear in five of the included studies, and non-applicable (since inter-rater reliability was not assessed) in the remaining eleven included studies. The methodological quality (COSMIN checklist) of most of the included studies was rated as 'good' or 'excellent'. One study that assessed responsiveness was rated as 'fair'. The inter-rater reliability of nine endoscopic scoring indices including the Baron Score, Blackstone Endoscopic Interpretation, Endoscopic Activity Index, Matts Score, Mayo Clinic Endoscopic Subscore, Osada Score, UCCIS, UCEIS, Watson Grade was assessed in seven studies, with estimates of correlation, k, ranging from 0.44 to 0.97. The iIntra-rater reliability of seven endoscopic scoring indices including the Baron Score, Blackstone Endoscopic Interpretation, Matts Score, Mayo Clinic Endoscopic Subscore, Osada Score, UCCIS and UCEIS was assessed in three studies, with estimates of correlation, k, ranging from 0.41 to 0.86. No studies assessed content validity. Three studies evaluated the criterion validity of three endoscopic scoring indices including the Rachmilewitz Endoscopic Score, Magnifying Colonoscopy Grade and the UCCIS. These indices were correlated with objective markers of disease activity including albumin, blood leukocytes, C reactive protein, fecal calprotectin, hemoglobin, mucosal interleukin-8 concentration and platelet count. Correlation estimates ranged from r = -0.19 to 0.83. Thirteen endoscopic scoring indices were tested for construct validity in 13 studies. Estimates of correlation between the endoscopic scoring indices and other measures of disease activity ranged from r = 0.27 to 0.93. Two studies explored the responsiveness of four endoscopic scoring indices including the Mayo Endoscopic Subscore, Modified Baron Score, Modified Mayo Endoscopic Subscore and UCEIS. One study concluded that the Modified Baron Score, Modified Mayo Endoscopic Subscore and UCEIS had similar responsiveness for detecting disease change in ulcerative colitis. The other included study concluded that the UCEIS may be the most accurate endoscopic scoring tool. None of the included studies formally assessed feasibility. AUTHORS' CONCLUSIONS: While the UCEIS, UCCIS and Mayo Clinic Endoscopic Subscore have undergone extensive validation, none of these instruments have been fully validated and only two studies assessed responsiveness. Further research on the operating properties of these indices is needed given the lack of a fully-validated endoscopic scoring instrument for the evaluation of disease activity in ulcerative colitis. PMID- 29338067 TI - The influence of delayed cord clamping and cord milking on inflammatory cytokines in umbilical vein and neonatal circulation. AB - INTRODUCTION: The purpose of the present study was to compare the levels of tumor necrosis factor alpha (TNF-alpha), and interleukins (IL) 1, 6, 8 and 10 in the umbilical cord and neonatal circulation among neonates with early and late cord clamping. MATERIAL AND METHODS: A consecutive series of 76 cases of uncomplicated pregnancy and an uneventful parturition was evaluated. In 40 cases, delayed cord clamping was used and in the remaining 36, early cord clamping was practiced. Blood samples were collected from the umbilical vein immediately after cord clamping and at 24 h from the median cubital or basilic vein of the neonate. RESULTS: Significant differences were noted in the hematocrit and hemoglobin levels at 24 h that favored delayed clamping. None of the evaluated markers of inflammation differ between the two groups. Spearman's rho revealed a significant correlation between umbilical cord TNF-alpha and TNF-alpha neonatal values at 24 h (r = 0.551, p = 0.022) in the early clamped group. Significant correlations were also noted between umbilical cord TNF-alpha and TNF-alpha neonatal values at 24 h (r = 0.728, p = 0.001), umbilical cord IL-10 and neonatal IL-10 at 24 h (r = 0.487, p = 0.047) and umbilical cord IL-1b and neonatal IL-1b at 24 h (r = 0.516, p = 0.034). CONCLUSIONS: Delayed cord clamping or cord milking does not alter the levels of inflammatory cytokines in cord blood and neonatal serum. Future studies should evaluate the impact of delayed cord clamping in selected high-risk pregnancies. PMID- 29338068 TI - Single and combined effects of plant-derived and synthetic cannabinoids on cognition and cannabinoid-associated withdrawal signs in mice. AB - BACKGROUND AND PURPOSE: It has been suggested that the non-euphorogenic phytocannabinoid cannabidiol (CBD) can ameliorate adverse effects of Delta9 tetrahydrocannabinol (THC). We determined whether CBD ameliorates cognitive deficits and withdrawal signs induced by cannabinoid CB1 /CB2 receptor agonists or produces these pharmacological effects on its own. EXPERIMENTAL APPROACH: The effects of THC or the CB1 /CB2 receptor full agonist WIN55212 alone, CBD alone or their combination were tested across a range of doses. Cognitive effects were assessed in C57BL/6 mice in a conditional discrimination task and in the Barnes maze. Cannabinoid withdrawal signs were assessed following precipitated withdrawal by acute administration of the CB1 receptor antagonist SR141716, the 5 HT1A receptor antagonist WAY100635, the TRPV1 receptor antagonist capsazepine or the adenosine A2A receptor antagonist SCH58261. KEY RESULTS: THC produced significant motor and cognitive impairment in the Barnes maze task, none of which were attenuated by the addition of CBD. CBD alone did not affect cognitive performance. Precipitation of withdrawal signs by SR141716 occurred in mice chronically treated with THC or WIN55,212. These withdrawal signs were not attenuated by addition of chronic CBD. Chronic treatment with CBD alone did not induce withdrawal signs precipitated by SR141716 or WAY100635. Chronic CBD treatment also produced anxiolysis, which was not altered by attempting to precipitate withdrawal-induced anxiety with a range of antagonists. CONCLUSIONS AND IMPLICATIONS: CBD as a monotherapy may prove to be a safer pharmacological agent, than CB1 receptor agonists alone or in combination with CBD, for the treatment of several disorders. PMID- 29338069 TI - Cesarean scar niche and uterotomy closure technique. PMID- 29338071 TI - The financial burden and distress of patients with cancer: Understanding and stepping-up action on the financial toxicity of cancer treatment. AB - "Financial toxicity" has now become a familiar term used in the discussion of cancer drugs, and it is gaining traction in the literature given the high price of newer classes of therapies. However, as a phenomenon in the contemporary treatment and care of people with cancer, financial toxicity is not fully understood, with the discussion on mitigation mainly geared toward interventions at the health system level. Although important, health policy prescriptions take time before their intended results manifest, if they are implemented at all. They require corresponding strategies at the individual patient level. In this review, the authors discuss the nature of financial toxicity, defined as the objective financial burden and subjective financial distress of patients with cancer, as a result of treatments using innovative drugs and concomitant health services. They discuss coping with financial toxicity by patients and how maladaptive coping leads to poor health and nonhealth outcomes. They cover management strategies for oncologists, including having the difficult and urgent conversation about the cost and value of cancer treatment, availability of and access to resources, and assessment of financial toxicity as part of supportive care in the provision of comprehensive cancer care. CA Cancer J Clin 2018;68:153-165. (c) 2018 American Cancer Society. PMID- 29338070 TI - The use of chemogenetics in behavioural neuroscience: receptor variants, targeting approaches and caveats. AB - The last decade has seen major advances in neuroscience tools allowing us to selectively modulate cellular pathways in freely moving animals. Chemogenetic approaches such as designer receptors exclusively activated by designer drugs (DREADDs) permit the remote control of neuronal function by systemic drug administration. These approaches have dramatically advanced our understanding of the neural control of behaviour. Here, we review the different techniques and genetic approaches available for the restriction of chemogenetic receptors to defined neuronal populations. We highlight the use of a dual virus approach to target specific circuitries and the effectiveness of different routes of administration of designer drugs. Finally, we discuss the potential caveats associated with DREADDs including off-target effects of designer drugs, the effects of chronic chemogenetic receptor activation and the issue of collateral projections associated with DREADD activation and inhibition. PMID- 29338072 TI - Targeting HER2 in colorectal cancer: The landscape of amplification and short variant mutations in ERBB2 and ERBB3. AB - BACKGROUND: In contrast to lung cancer, few precision treatments are available for colorectal cancer (CRC). One rapidly emerging treatment target in CRC is ERBB2 (human epidermal growth factor receptor 2 [HER2]). Oncogenic alterations in HER2, or its dimerization partner HER3, can underlie sensitivity to HER2-targeted therapies. METHODS: In this study, 8887 CRC cases were evaluated by comprehensive genomic profiling for genomic alterations in 315 cancer-related genes, tumor mutational burden, and microsatellite instability. This cohort included both colonic (7599 cases; 85.5%) and rectal (1288 cases; 14.5%) adenocarcinomas. RESULTS: A total of 569 mCRCs were positive for ERBB2 (429 cases; 4.8%) and/or ERBB3 (148 cases; 1.7%) and featured ERBB amplification, short variant alterations, or a combination of the 2. High tumor mutational burden (>=20 mutations/Mb) was significantly more common in ERBB-mutated samples, and ERBB3 mutated CRCs were significantly more likely to have high microsatellite instability (P<.002). Alterations affecting KRAS (27.3%) were significantly underrepresented in ERBB2-amplified samples compared with wild-type CRC samples (51.8%), and ERBB2- or ERBB3-mutated samples (49.0% and 60.8%, respectively) (P<.01). Other significant differences in mutation frequency were observed for genes in the PI3K/MTOR and mismatch repair pathways. CONCLUSIONS: Although observed less often than in breast or upper gastrointestinal carcinomas, indications for which anti-HER2 therapies are approved, the percentage of CRC with ERBB genomic alterations is significant. Importantly, 32% of ERBB2-positive CRCs harbor short variant alterations that are undetectable by routine immunohistochemistry or fluorescence in situ hybridization testing. The success of anti-HER2 therapies in ongoing clinical trials is a promising development for patients with CRC. Cancer 2018;124:1358-73. (c) 2018 Foundation Medicine, Inc. Cancer published by Wiley Periodicals, Inc. on behalf of American Cancer Society. PMID- 29338073 TI - Impact of time to testosterone rebound and comorbidity on the risk of cause specific mortality in men with unfavorable-risk prostate cancer. AB - BACKGROUND: Herein, the authors evaluated how the time to testosterone rebound (TTR) after radiotherapy (RT) and 6 months of androgen deprivation therapy (ADT) impacted the risk of prostate cancer-specific mortality (PCSM) and cardiovascular specific mortality (CVM) among men with varying comorbidity extent. METHODS: Between 1995 and 2001, a total of 206 men who were randomized to receive RT either alone or with 6 months of ADT for unfavorable-risk PC and who had a comorbidity score assigned using the Adult Comorbidity Evaluation 27 metric comprised the study cohort. Multivariable competing risk regression was used to evaluate the impact of and possible interaction between comorbidity and TTR on PCSM and CVM. RESULTS: After a median follow-up of 18.19 years, 30 men (18.6%), 39 men (24.2%), and 92 men (57.1%), respectively, had died of PC, CV disease, or other causes. As TTR increased, PCSM significantly decreased in men with no or minimal (adjusted hazard ratio [AHR], 0.53, 95% confidence interval [95% CI], 0.34-0.84 [P =.007]) and moderate to severe (AHR, 0.37; 95% CI, 0.14-0.99 [P = .048]) comorbidity. However, increasing TTR significantly increased the risk of CVM among men with moderate to severe comorbidity (AHR, 1.87; 95% CI, 1.40-2.49 [P <.001]), but not those with no or minimal comorbidity (AHR, 0.86; 95% CI, 0.57 1.29 [P =.46]), leading to a significant interaction between TTR and comorbidity (P = .001). CONCLUSIONS: The results of the current study indicate that considering an intermittent course of ADT such that the TTR approaches 18 months, instead of continuous long-term administration of ADT, in men with moderate to severe comorbidity and high-risk PC may reduce the increased risk of CVM without increasing the risk of PCSM. Cancer 2018;124:1391-9. (c) 2018 American Cancer Society. PMID- 29338075 TI - Liver kinase B1/AMP-activated protein kinase-mediated regulation by gentiopicroside ameliorates P2X7 receptor-dependent alcoholic hepatosteatosis. AB - BACKGROUND AND PURPOSE: Regulating P2X7 receptor-mediated activation of NLRP3 inflammasomes could be a therapeutic strategy to treat alcoholic hepatosteatosis. We investigated whether this process was modulated by gentiopicroside, the main active secoiridoid glycoside from Gentiana manshurica Kitagawa. EXPERIMENTAL APPROACH: In vivo models of acute and chronic alcoholic hepatosteatosis were established by intragastrically administered ethanol or using chronic plus binge ethanol feeding of Lieber-DeCarli liquid diet to male C57BL/6 mice. In vitro, HepG2 cells were treated with ethanol. RAW 264.7 macrophages and murine bone marrow-derived macrophages (BMDMs) were stimulated with LPS and ATP. KEY RESULTS: In both the acute and chronic alcohol-induced mouse hepatosteatosis models, gentiopicroside decreased serum aminotransferases and triglyceride accumulation. Up-regulated SREBP1, down-regulated PPARalpha and phosphorylated acetyl-CoA carboxylase caused by acute and chronic alcohol feeding were modulated by gentiopicroside, through the elevation of LKB1 and AMPK. Suppression of P2X7 receptor-NLRP3 activation by gentiopicroside inhibited IL-1beta production. In ethanol-exposed HepG2 cells, gentiopicroside reduced lipogenesis and promoted lipid oxidation via activation of P2X7 receptor-NLRP3 inflammasomes. Genetic or pharmacological blockade of P2X7 receptors enhanced AMPK activity and reduced SREBP1 expression in ethanol-treated HepG2 cells. Gentiopicroside down-regulated P2X7 receptor-mediated inflammatory responses in LPS/ATP-stimulated RAW 264.7 macrophages and BMDMs. IL-1beta from macrophages accelerated lipid accumulation in hepatocytes. Depleting macrophages by clodronate liposomes ameliorated alcoholic hepatosteatosis, and it was further alleviated by gentiopicroside. CONCLUSIONS AND IMPLICATIONS: Activation of LKB1/AMPK signalling by gentiopicroside was mediated by the P2X7 receptor-NLRP3 inflammasome, suggesting the therapeutic value of blocking P2X7 receptors in the treatment of alcoholic hepatosteatosis. PMID- 29338074 TI - Adaptive immune education by gut microbiota antigens. AB - Host-microbiota mutualism has been established during long-term co-evolution. A diverse and rich gut microbiota plays an essential role in the development and maturation of the host immune system. Education of the adaptive immune compartment by gut microbiota antigens is important in establishing immune balance. In particular, a critical time frame immediately after birth provides a 'window of opportunity' for the development of lymphoid structures, differentiation and maturation of T and B cells and, most importantly, establishment of immune tolerance to gut commensals. Depending on the colonization niche, antigen type and metabolic property of different gut microbes, CD4 T-cell responses vary greatly, which results in differentiation into distinct subsets. As a consequence, certain bacteria elicit effector-like immune responses by promoting the production of pro-inflammatory cytokines such as interferon-gamma and interleukin-17A, whereas other bacteria favour the generation of regulatory CD4 T cells and provide help with gut homeostasis. The microbiota have profound effects on B cells also. Gut microbial exposure leads to a continuous diversification of B-cell repertoire and the production of T dependent and -independent antibodies, especially IgA. These combined effects of the gut microbes provide an elegant educational process to the adaptive immune network. Contrariwise, failure of this process results in a reduced homeostasis with the gut microbiota, and an increased susceptibility to various immune disorders, both inside and outside the gut. With more definitive microbial-immune relations waiting to be discovered, modulation of the host gut microbiota has a promising future for disease intervention. PMID- 29338077 TI - Blenderized Enteral Nutrition Diet Study: Feasibility, Clinical, and Microbiome Outcomes of Providing Blenderized Feeds Through a Gastric Tube in a Medically Complex Pediatric Population. AB - BACKGROUND: Chronically ill children often require feeding via gastrostomy tubes (G-tubes). Commercial formula is most commonly used for enteral feeding; however, caregivers have been requesting blenderized tube feeds (BTFs) as an alternative. The objective of this study was to evaluate the feasibility of using BTFs in a medically complex pediatric population and assess their impact on clinical outcomes, as well as the microbiota. METHODS: Twenty pediatric participants were included. Participants were G-tube dependent and receiving >=75% of their daily energy requirements from commercial formula. Over 4 weeks, participants were transitioned from commercial formula to BTF and were monitored for 6 months for changes in nutrient intake, gastrointestinal symptoms, oral feeding, medication use, and caregiver perceptions. Changes to intestinal microbiota were monitored by 16S rDNA-based sequencing. RESULTS: Transition onto BTF was feasible in 17 participants, and 1 participant transitioned to oral feeds. Participants required 50% more calories to maintain their body mass index while on BTFs compared with commercial formula. BTF micronutrient content was superior to commercial formula. Prevalence of vomiting and use of acid-suppressive agents significantly decreased on BTFs. Stool consistency and frequency remained unchanged, while stool softener use increased. The bacterial diversity and richness in stool samples significantly increased, while the relative abundance of Proteobacteria decreased. Caregivers were more satisfied with BTFs and unanimously indicated they would recommend BTFs. CONCLUSION: Initiation and maintenance of BTFs is not only feasible in a medically complex pediatric population but can also be associated with improved clinical outcomes and increased intestinal bacterial diversity. PMID- 29338078 TI - Bladder cancer and the National Cancer Data Base: New insight or misinformation? PMID- 29338076 TI - Hypoxia-inducible transcription factors, HIF1A and HIF2A, increase in aging mucosal tissues. AB - Hypoxia (i.e. oxygen deprivation) activates the hypoxia-signalling pathway, primarily via hypoxia-inducible transcription factors (HIF) for numerous target genes, which mediate angiogenesis, metabolism and coagulation, among other processes to try to replenish tissues with blood and oxygen. Hypoxia signalling dysregulation also commonly occurs during chronic inflammation. We sampled gingival tissues from rhesus monkeys (Macaca mulatta; 3-25 years old) and total RNA was isolated for microarray analysis. HIF1A, HIF1B and HIF2A were significantly different in healthy aged tissues, and both HIF1A and HIF3A were positively correlated with aging. Beyond these transcription factor alterations, analysis of patterns of gene expression involved in hypoxic changes in tissues showed specific increases in metabolic pathway hypoxia-inducible genes, whereas angiogenesis pathway gene changes were more variable in healthy aging tissues across the animals. With periodontitis, aging tissues showed decreases in metabolic gene expression related to carbohydrate/lipid utilization (GBE1, PGAP1, TPI1), energy metabolism and cell cycle regulation (IER3, CCNG2, PER1), with up regulation of transcription genes and cellular proliferation genes (FOS, EGR1, MET, JMJD6) that are hypoxia-inducible. The potential clinical implications of these results are related to the epidemiological findings of increased susceptibility and expression of periodontitis with aging. More specifically the findings describe that hypoxic stress may exist in aging gingival tissues before documentation of clinical changes of periodontitis and, so, may provide an explanatory molecular risk factor for an elevated capacity of the tissues to express destructive processes in response to changes in the microbial biofilms characteristic of a more pathogenic microbial challenge. PMID- 29338079 TI - Nutrition Delivery and Growth Outcomes in Infants With Gastroschisis. AB - BACKGROUND: We aimed to describe nutrient intake and growth in infants with gastroschisis and identify factors associated with impaired growth. METHODS: Retrospective study of neonates who underwent gastroschisis repair from 2010 to 2015. Nutrient intake and weight-for-age z scores (WAZ) were recorded. RESULTS: Data from 60 eligible infants with median (Q1, Q3) gestational age of 36 weeks (35, 37) and birth weight 2418 g (2098, 2665) were analyzed. Median WAZ decreased from -0.71 (-1.08, -0.17) at birth to -1.08 (-1.58, -0.63) at discharge (P < .001); 30% experienced a >1.0 decline in WAZ. Parenteral nutrition (PN) was initiated soon after birth, and 14 (23%) patients had severe intestinal failure. Fourteen patients (23%) experienced central line-associated bloodstream infection (CLABSI) at a rate of 5.0 per 1000 catheter days. Factors independently associated with lower discharge WAZ and greater WAZ decline were CLABSI (P = .02) and prematurity (P = .02). By day 7, energy and protein intake were 90-100 kcal/kg/day and 3 g/kg/day, respectively. Median age to achieve enteral autonomy was 36 days (22, 82). Atresias, CLABSI, prematurity, and staged closure were associated with delayed enteral autonomy (P < .01). Among 34 patients with 1-year follow-up, WAZ improved from -1.16 (-1.74, -0.65) at discharge to 0.19 (-0.80, 0.61) at 12 months (P < .001). CONCLUSION: Infants with gastroschisis are dependent on PN and have a significant decline in WAZ during their hospital stay, predicted by prematurity and CLABSI. Efforts to prevent CLABSI and optimize enteral autonomy must be prioritized in this cohort. PMID- 29338080 TI - Phase 1 trial evaluating cisplatin, gemcitabine, and veliparib in 2 patient cohorts: Germline BRCA mutation carriers and wild-type BRCA pancreatic ductal adenocarcinoma. AB - BACKGROUND: A phase 1 trial was used to evaluate a combination of cisplatin, gemcitabine, and escalating doses of veliparib in patients with untreated advanced pancreatic ductal adenocarcinoma (PDAC) in 2 cohorts: a germline BRCA1/2 mutated (BRCA+) cohort and a wild-type BRCA (BRCA-) cohort. The aims were to determine the safety, dose-limiting toxicities (DLTs), maximum tolerated dose, and recommended phase 2 dose (RP2D) of veliparib combined with cisplatin and gemcitabine and to assess the antitumor efficacy (Response Evaluation Criteria in Solid Tumors, version 1.1) and overall survival. METHODS: Gemcitabine and cisplatin were dosed at 600 and 25 mg/m2 , respectively, over 30 minutes on days 3 and 10 of a 21-day cycle. Four dose levels of veliparib were evaluated: 20 (dose level 0), 40 (dose level 1), and 80 mg (dose level 2) given orally twice daily on days 1 to 12 and 80 mg given twice daily on days 1 to 21 (dose level 2A [DL2A]). RESULTS: Seventeen patients were enrolled: 9 BRCA+ patients, 7 BRCA- patients, and 1 patient with an unknown status. DLTs were reached at DL2A (80 mg twice daily on days 1 to 21). Two of the 5 patients in this cohort (40%) experienced grade 4 neutropenia and thrombocytopenia. Two grade 5 events occurred on protocol. The objective response rate in the BRCA+ cohort was 7 of 9 (77.8%). The median overall survival for BRCA+ patients was 23.3 months (95% confidence interval [CI], 3.8-30.2 months). The median overall survival for BRCA- patients was 11 months (95% CI, 1.5-12.1 months). CONCLUSIONS: The RP2D of veliparib was 80 mg by mouth twice daily on days 1 to 12 in combination with cisplatin and gemcitabine; the DLT was myelosuppression. Substantial antitumor activity was seen in BRCA+ PDAC. A randomized phase 2 trial is currently evaluating cisplatin and gemcitabine with and without veliparib for BRCA+ PDAC (NCT01585805). Cancer 2018;124:1374-82. (c) 2018 American Cancer Society. PMID- 29338081 TI - Nonsurgical premature menopause and reproductive implications in survivors of childhood cancer: A report from the Childhood Cancer Survivor Study. AB - BACKGROUND: Survivors of childhood cancer are at risk of nonsurgical premature menopause (NSPM). To the authors' knowledge, risk factors for NSPM and its impact on reproduction remain poorly defined. METHODS: The menopausal status of 2930 survivors diagnosed between 1970 and 1986 (median age, 6 years [range, birth-20 years]) who were aged > 18 years at the time of the current study (median age, 35 years [range, 18-58 years]) was compared with 1399 siblings. NSPM was defined as the cessation of menses >=6 months in duration occurring 5 years after diagnosis and before age 40 that was not due to pregnancy, surgery, or medications. Among survivors, multivariable logistic regression identified risk factors for NSPM. Pregnancy and live birth rates were compared between survivors with and without NSPM. RESULTS: A total of 110 survivors developed NSPM (median age, 32 years [range, 16-40 years]), with a prevalence at age 40 years of 9.1% (95% confidence interval [95% CI], 4.9%-17.2%); the odds ratio (OR) was 10.5 (95% CI, 4.2-26.3) compared with siblings. Independent risk factors included exposure to a procarbazine dose >=4000 mg/m2 (OR, 8.96 [95% CI, 5.02-16.00]), any dose of ovarian radiation (OvRT) (OvRT < 500 cGy: OR, 2.73 [95% CI, 1.33-5.61] and OvRT >= 500 cGy: OR, 8.02 [95% CI, 2.81-22.85]; referent RT, 0), and receipt of a stem cell transplantation (OR, 6.35; 95% CI, 1.19-33.93). Compared with survivors without NSPM, those who developed NSPM were less likely to ever be pregnant (rate ratio, 0.49; 95% CI, 0.27-0.80) or to have a live birth (rate ratio, 0.42; 95% CI, 0.19-0.79) between ages 31 and 40 years. CONCLUSIONS: Survivors of childhood cancer are at risk of NSPM associated with lower rates of live birth in their 30s. Those at risk should consider fertility preservation if they anticipate delaying childbearing. Cancer 2018;124:1044-52. (c) 2018 American Cancer Society. PMID- 29338082 TI - Racial/ethnic differences in thyroid cancer incidence in the United States, 2007 2014. AB - BACKGROUND: Small tumor diagnostic tools including ultrasound-guided fine needle aspiration (FNA) and computed tomography (CT) could be causing rising and racially/ethnically different thyroid cancer incidence rates due to variable overdiagnosis of indolent tumors. Papillary tumors and <40 mm tumors are most likely to be overdiagnosed as indolent tumors by FNA and CT. METHODS: Age adjusted incidence rates (AAIRs) for the years 2007-2014 were calculated for race/ethnicity (white, Hispanic, Asian, African American, Native American) by patient/tumor characteristics for microscopically confirmed malignant thyroid cancer cases in the Surveillance, Epidemiology, and End Results Program 18 database (SEER 18; N = 93,607). Multivariate analysis determined cancer patients' odds ratios of diagnosis with papillary thyroid carcinoma (vs other histologies) and tumors <40 mm (vs >=40 mm). RESULTS: For both males and females, there were statistically significant differences in incidence rates between race/ethnicity, with whites having the highest AAIRs and African Americans the lowest AAIRs. Among thyroid cancer patients, tumor size and histology differed significantly by race and insurance coverage after controlling for age, sex, stage, and tumor sequence. Non-whites with thyroid cancer (vs whites) were less associated with small tumors (odds ratio [OR], 0.51-0.79; P < .0001). Medicaid and uninsured patients with thyroid cancer were less associated with tumors <40 mm (OR, 0.55 0.71; 95% confidence interval [CI], 0.49-0.76) and papillary carcinoma (OR, 0.86; 95% CI, 0.80-0.93). CONCLUSION: The diagnosis of small tumors is occurring at greater rates in whites (vs non-whites) and insured (vs Medicaid and uninsured) patients; consequently, these groups may be vulnerable to unnecessary tests and treatments or potentially aided by early detection. Guidelines that define postdetection interventions may be needed to limit the overtreatment of indolent and small papillary carcinomas. Cancer 2018;124:1483-91. (c) 2018 American Cancer Society. PMID- 29338084 TI - Importance of B cells to development of regulatory T cells and prolongation of tissue allograft survival in recipients receiving autologous bone marrow transplantation. AB - We previously showed that congenic bone marrow transplantation (BMTx) post myeloablation augmented tissue allograft survival in association with increased regulatory T (Treg) cells of both host and bone marrow donor origin. Regulatory B (Breg) cells can also modulate T-cell immunity and B cells may be implicated in the development of Treg cells. Accordingly, we explored the effect of B-cell depletion in vivo on augmented graft survival post BMTx. C57BL/6 mice received BALB/c skin allografts followed 7 days later by myeloablation using cyclophosphamide and busulphan. Mice then received T-cell-depleted bone marrow from CD45.1 congenic donors, and ongoing immunosuppression with rapamycin (to day 28 after BMTx). Control mice received cyclophosphamide and busulphan followed by rapamycin, but not congenic bone marrow. At different times post BMTx, mice received B-cell-depleting antibody treatment, and the effect on both skin graft survival, and induction of Treg cells was assessed. BMTx resulted in significantly prolonged skin graft survival versus control mice, in association with attenuated donor-specific alloreactivity relative to controls, increased splenic Treg cells and significantly diminished anti-donor IgG. In mice receiving infusion of B-depleting antibodies for 12 days from day 15 post BMTx, both graft survival and Treg cell activity were diminished, particularly for functional Treg cells of donor origin. Adoptive transfer of Breg cells from mice harvested at 15 days post BMTx prolonged survival in naive transplanted mice and increased Treg cell levels. Thus, autologous BMTx augmentation of graft survival is dependent in part upon a population of Breg cells that can modulate the function of donor derived Treg cells. PMID- 29338083 TI - Androgen-deprivation therapy, dementia, and cognitive dysfunction in men with prostate cancer: How much smoke and how much fire? AB - Androgen-deprivation therapy (ADT) remains the cornerstone of management for patients with metastatic prostate cancer. Although the toxicities of ADT are well established, there is increasing controversy surrounding the association between cognitive dysfunction and the receipt of ADT, with some evidence suggesting an increased risk of dementia. The authors conducted a literature search to identify pertinent clinical studies in this field. This general review outlines the key findings and discusses the relative strengths and weaknesses when drawing conclusions about the risk of cognitive dysfunction or dementia with ADT use. Cancer 2018;124:1326-34. (c) 2018 American Cancer Society. PMID- 29338085 TI - The century experiment: the first twenty years of UC Davis' Mediterranean agroecological experiment. AB - The Century Experiment at the Russell Ranch Sustainable Agriculture Facility at the University of California, Davis provides long-term agroecological data from row crop systems in California's Central Valley starting in 1993. The Century Experiment was initially designed to study the effects of a gradient of water and nitrogen availability on soil properties and crop performance in ten different cropping systems to measure tradeoffs and synergies between agricultural productivity and sustainability. Currently systems include 11 different cropping systems-consisting of four different crops and a cover crop mixture-and one native grass system. This paper describes the long-term core data from the Century Experiment from 1993-2014, including crop yields and biomass, crop elemental contents, aerial-photo-based Normalized Difference Vegetation Index data, soil properties, weather, chemical constituents in irrigation water, winter weed populations, and operational data including fertilizer and pesticide application amounts and dates, planting dates, planting quantity and crop variety, and harvest dates. This data set represents the only known long-term set of data characterizing food production and sustainability in irrigated and rainfed Mediterranean annual cropping systems. There are no copyright restrictions associated with the use of this dataset. PMID- 29338086 TI - Cardiometabolic risk factors and survival after breast cancer in the Women's Health Initiative. AB - BACKGROUND: Few studies have examined the relationship between cardiometabolic risk factors linked to metabolic syndrome and mortality among women with breast cancer. METHODS: We used the Women's Health Initiative to evaluate the relationship between cardiometabolic risk factors, including waist circumference (WC), blood pressure, cholesterol level, and presence of type 2 diabetes, and their relation with death from breast cancer, cardiovascular disease (CVD), and other causes among 8641 women with local or regional stage invasive breast cancer. Cox proportional hazards models were used to estimate hazard ratios, and 95% confidence intervals, adjusted for important predictors of survival. RESULTS: After a median of 11.3 years, there were 2181 total deaths, 619 (28.4%) of which were due to breast cancer. Most participants (55.7%) had at least 2 cardiometabolic risk factors, and 4.9% had 3 or 4. Having a larger number of risk factors was associated with higher risk of CVD and other-cause mortality (P trend < .001 for both), but not with breast cancer mortality (P trend = .86). Increased WC was associated with a higher risk of CVD (hazard ratio [HR], 1.28; 95% confidence interval [CI], 1.05-1.57) and other-cause mortality (HR, 1.32; 95% CI, 1.16-1.49) and only with a small and nonsignificant higher risk of breast cancer mortality (HR, 1.19; 95% CI, 0.93-1.52). The results did not differ in analyses stratified by race, hormone receptor status, or after an analysis of cases diagnosed within 5 years after baseline. CONCLUSIONS: Among women with early stage breast cancer, cardiometabolic risk factors are significantly associated with cardiovascular and other-cause mortality, but not breast cancer mortality. Cancer 2018;124:1798-807. (c) 2018 American Cancer Society. PMID- 29338087 TI - Gabapentin prevents synaptogenesis between sensory and spinal cord neurons induced by thrombospondin-4 acting on pre-synaptic Cav alpha2 delta1 subunits and involving T-type Ca2+ channels. AB - BACKGROUND AND PURPOSE: Nerve injury induces concurrent up-regulation of the voltage-gated calcium channel subunit Cav alpha2 delta1 and the extracellular matrix protein thrombospondin-4 (TSP4) in dorsal root ganglia and dorsal spinal cord, leading to the development of a neuropathic pain state. Interactions of these proteins promote aberrant excitatory synaptogenesis that contributes to neuropathic pain state development through unknown mechanisms. We investigated the contributions of Cav alpha2 delta1 subunits and TSP4 to synaptogenesis, and the pathways involved in vitro, and whether treatment with gabapentin could block this process and pain development in vivo. EXPERIMENTAL APPROACH: A co-culture system of sensory and spinal cord neurons was used to study the contribution from each protein to synaptogenesis and the pathway(s) involved. Anti-synaptogenic actions of gabapentin were studied in TSP4-injected mice. KEY RESULTS: Only presynaptic, but not postsynaptic, Cav alpha2 delta1 subunits interacted with TSP4 to initiate excitatory synaptogenesis through a pathway modulated by T-type calcium channels. Cav alpha2 delta1 /TSP4 interactions were not required for maintenance of already formed synapses. In vivo, early, but not delayed, treatment with low-dose gabapentin blocked this pathway and the development of the pain state. CONCLUSIONS AND IMPLICATIONS: Cav alpha2 delta1 /TSP4 interactions were critical for the initiation, but not for the maintenance, of abnormal synapse formation between sensory and spinal cord neurons. This process was blocked by early, but was not reversed by delayed, treatment with gabapentin. Early intervention with gabapentin may prevent the development of injury-induced chronic pain, resulting from Cav alpha2 delta1 /TSP4-initiated abnormal synapse formation. LINKED ARTICLES: This article is part of a themed section on Recent Advances in Targeting Ion Channels to Treat Chronic Pain. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v175.12/issuetoc. PMID- 29338088 TI - Margins in breast cancer: How much is enough? AB - The appropriate negative margin width for women undergoing breast-conserving surgery for both ductal carcinoma in situ (DCIS) and invasive carcinoma is controversial. This review examines the available data on the margin status for invasive breast cancer and DCIS, and highlights the similarities and differences in tumor biology and standard treatments that affect the local recurrence (LR) risk and, therefore, the optimal surgical margin. Consensus guidelines support a negative margin, defined as no ink on tumor, for invasive carcinoma treated with breast-conserving therapy. Because of differences in the growth pattern and utilization of systemic therapy, a margin of 2 mm has been found to minimize the LR risk for women with DCIS undergoing lumpectomy and radiation therapy (RT). Wider negative margins do not improve local control for DCIS or invasive carcinoma when they are treated with lumpectomy and RT. Re-excision for negative margins should be individualized, and the routine practice of performing additional surgery to obtain a wider negative margin is not supported by the literature. Cancer 2018;124:1335-41. (c) 2018 American Cancer Society. PMID- 29338089 TI - Outcomes of patients diagnosed with carcinoma metastatic to the neck from an unknown primary source and treated with intensity-modulated radiation therapy. AB - BACKGROUND: There are few published studies to guide the treatment of carcinoma metastatic to the neck from an unknown primary (CUP). In this regard, the objective of the current study was to share the authors' current experience treating patients with CUP using intensity-modulated radiation therapy (IMRT), which principally targeted both sides of the neck, the nasopharynx, and the oropharynx. METHODS: This was a retrospective study in which an institutional database search was conducted to identify patients with CUP who received IMRT. Data analysis included frequency tabulation, survival analysis, and multivariable analysis. RESULTS: Two-hundred sixty patients met inclusion criteria. The most common lymph node category was N2b (54%). IMRT volumes included the entire pharyngolaryngeal mucosa in 78 patients, the nasopharynx and oropharynx in 167 patients, and treatment limited to the involved neck in 11 patients. Eighty-four patients underwent neck dissections. The 5-year overall survival, regional control, and distant metastases-free survival rates were 84%, 91%, and 94%, respectively. Over 40% of patients had gastrostomy tubes during therapy, and 7% patients were diagnosed with chronic radiation-associated dysphagia. Higher lymph node burden was associated with worse disease-related outcomes, and in subgroup analysis, patients with human papillomavirus-associated disease had better outcomes. No therapeutic modality was statistically associated with either disease-related outcomes or toxicity. CONCLUSIONS: Comprehensive IMRT with treatment to both sides of the neck and to the oropharyngeal and nasopharyngeal mucosa results in high rates of disease control and survival. The investigators were unable to demonstrate that treatment intensification with chemotherapy or surgery added benefit or excessive toxicity. Cancer 2018;124:1415-27. (c) 2018 American Cancer Society. PMID- 29338090 TI - Influence of provider factors and race on uptake of breast cancer gene expression profiling. AB - BACKGROUND: Gene expression profiling (GEP) has been rapidly adopted for early breast cancer and can aid in chemotherapy decision making. Study results regarding racial disparities in testing are conflicting, and may reflect different care settings. To the authors' knowledge, data regarding the influence of provider factors on testing are scarce. METHODS: The authors used a statewide, multipayer, insurance claims database linked to cancer registry records to examine the impact of race and provider characteristics on GEP uptake in a cohort of patients newly diagnosed with breast cancer between 2005 and 2012. Incidence proportion models were used to examine the adjusted likelihood of testing. Models were stratified by lymph node status (N0 vs N1). RESULTS: Among 11,958 eligible patients, 23% of black and 26% of non-Hispanic white patients received GEP. Among patients with N0 disease, black individuals were 16% less likely to receive testing after adjustment for clinical factors and the provider's specialty and volume of patients with breast cancer (95% confidence interval, 0.77-0.93). Adjustment for provider characteristics did not attenuate the effect of race on testing. Patients of middle-volume providers were more likely to be tested compared with those with either high-volume or low-volume providers, whereas patients seeing a medical oncologist were more likely to be tested compared with those whose only providers were from surgical specialties. CONCLUSIONS: Provider volume and specialty were found to be significant predictors of GEP use, but did not explain racial disparities in testing. Further research concerning the key contributors to lagging test use among black women is needed to optimize the equitable use of GEPs and support personalized treatment decision making for all patients. Cancer 2018;124:1743-51. (c) 2018 American Cancer Society. PMID- 29338091 TI - Using Difference Scores to Inform Therapy Practice: Differences in Perceptions of Attachment Behaviors between Partners in a Clinical Sample. AB - Using clinically relevant research methodology, this study focuses on differences (cross-partner difference scores) in perceptions of attachment behaviors (emotional accessibility, responsiveness, and engagement) between partners in couples therapy. In general, findings suggest that higher levels of self enhancement attachment behaviors (participant perceives self as demonstrating more attachment behaviors than the partner's ratings of the participant) are associated with lower relationship satisfaction and greater relationship instability. The association between attachment behavior difference scores and measures of relationship health is mediated through partner perceived positive communication. These results suggest that differences in perceptions between partners' level of attachment behaviors are an important clinical construct for therapy. As such, clinical recommendations for addressing self-enhancing attachment behaviors, and the mediating role of positive communication, are discussed with recommendations for researchers. PMID- 29338092 TI - Delayed initial radioiodine therapy related to incomplete response in low- to intermediate-risk differentiated thyroid cancer. AB - OBJECTIVE: Whether the initiating time of radioiodine (RAI) therapy will affect the clinical outcome in differentiated thyroid cancer (DTC) remains controversial. The objective of this study was to evaluate the impact of RAI therapy initiating time on response to initial therapy in low- to intermediate risk DTC. METHODS: A total of 235 consecutive patients with low- to intermediate risk DTC were retrospectively reviewed. According to the time interval between thyroidectomy and RAI therapy, patients were divided into Group 1 (interval < 3 months, n = 187) and Group 2 (interval >= 3 months, n = 48). Response to RAI therapy was evaluated as excellent, indeterminate, biochemical incomplete or structural incomplete response (ER, IDR, BIR or SIR) with a median follow-up of 780 days. The univariate and multivariate analyses were further conducted to identify factors associated with incomplete response (IR, including BIR and SIR). RESULTS: Response to initial therapy was significantly different between 2 groups (P < .05), after excluding the impact of other risk factors (age, gender, histological type, status of T and N, RAI dose, thyrotropin, stimulated thyroglobulin and follow-up time). A significantly higher IR rate (18.8% vs 4.3%, P = .001) and a lower ER proportion (62.5% vs 78.1%, P = .027) were observed in Group 2. By univariate analysis, both T status and N status, stimulated thyroglobulin and time interval were significant risk factors for IR (P < .05). Multivariate analysis demonstrated that the time interval was an independent risk factor for IR (P = .008). CONCLUSIONS: Delayed initial RAI therapy (>=3 months after thyroidectomy) related to incomplete response in low- to intermediate-risk DTC. PMID- 29338093 TI - Longitudinal Profiles of Metabolism and Bioenergetics Associated with Innate Immune Hormonal Inflammatory Responses and Amino-Acid Kinetics in Severe Sepsis and Systemic Inflammatory Response Syndrome in Children. AB - BACKGROUND: Experimental data indicate that sepsis influences the mitochondrial function and metabolism. We aim to investigate longitudinal bioenergetic, metabolic, hormonal, amino-acid, and innate immunity changes in children with sepsis. METHODS: Sixty-eight children (sepsis, 18; systemic inflammatory response syndrome [SIRS], 23; healthy controls, 27) were enrolled. Plasma amino acids were determined by high-performance liquid chromatography (HPLC); flow-cytometry expressed as mean fluorescence intensity (MFI) of heat shock protein (HSP) levels from monocytes (m) and neutrophils (n); resistin, adiponectin, and extracellular (e) HSPs evaluated by ELISA; ATP levels in white blood cells by luciferase luminescent assay; lipid peroxidation products (TBARS) by colorimetric test; nitrite and nitrate levels by chemiluminescent assay; biliverdin reductase (BVR) activity by enzymatic assay; and energy-expenditure (EE) by E-COVX. RESULTS: Resistin, eHSP72, eHSP90alpha, and nitrate were longitudinally higher in sepsis compared with SIRS (p<0.05); mHSP72, nHSP72, VO2 , VCO2 , EE, and metabolic pattern were repressed in sepsis compared with SIRS (p<0.05). Septic patients had lower ATP and TBARS compared with controls on day 1, lower ATP compared with SIRS on day 3 (p<0.05), but higher levels of BVR activity. Sepsis exhibited higher phenylalanine levels on day 1, serine on day 3; lower glutamine concentrations on days 3 and 5 (p<0.05). Resistin, inversely related to ATP, was independently associated with sepsis, along with mHSP72 and eHSP90alpha (p<0.05); TBARS and VO2 were independently associated with organ failure (p<0.05)). Septic nonsurvivors had malnutrition, persistently repressed metabolism, mHSP72, and induced resistin and adiponectin (p<0.05). CONCLUSIONS: A pattern of early longitudinal induction of metabolic-hormones and eHSP72/HSP90alpha, repression of bioenergetics and innate immunity, hypo-metabolism, and amino-acid kinetics changes discriminate sepsis from SIRS; malnutrition, hypo-metabolism, and persistently increased resistin and adiponectin are associated with poor outcome. PMID- 29338094 TI - Postnatal experiences, knowledge and perceptions of women with gestational diabetes. AB - AIM: Women with gestational diabetes mellitus (GDM) are at increased risk of Type 2 diabetes. This study aimed to explore experiences, knowledge and perceptions of women with GDM to inform the design of interventions to prevent or delay Type 2 diabetes. METHODS: Semi-structured interviews were carried out with 16 women with GDM who were recruited from a clinic in one Scottish health board. A framework approach was used to manage and analyse data according to themes informed by psychological theory (self-regulation model and theory of planned behaviour). RESULTS: GDM is not seen as an important, or even real diagnosis among some women, and this perception may result from the perceived minimal impact of GDM on their lives. Some women did experience a bigger emotional and practical impact. Knowledge and understanding of Type 2 diabetes was poor in general and many women were unconcerned about their future risk. Lower concern appeared to be linked to a lower perceived impact of GDM. Lifestyle changes discussed by women mostly related to diet and were motivated primarily by concern for their baby's health. Many women did not maintain these changes postnatally, reporting significant barriers. CONCLUSIONS: This study has suggested potential avenues to be explored in terms of content, timing and potential recipients of interventions. Educational interventions postnatally could address illness perceptions in women with GDM and redress the situation where lack of aftercare downplays its seriousness. For lifestyle interventions, the child's health could be used as a motivator within the context of later joint or family interventions. PMID- 29338095 TI - Patient-controlled tissue collection for genetic testing after early pregnancy loss: A pilot study. AB - OBJECTIVE: To determine how frequently and effectively products of conception can be obtained among women pursuing medical management of early pregnancy loss. METHODS: This pilot study was conducted to assess products of conception recovery outcomes for participants opting for medical management compared with women opting for surgical aspiration A tissue-collection kit was provided to women opting for medical management. Outcome measures included successful collection of products of conception, quantity and integrity of DNA, and participant satisfaction with the process. RESULTS: Tissue was collected from 19 of 22 participants in the medical management group (84%) and 39 participants (100%) in the surgical management group (P = .02). DNA yield and integrity were similar among both groups (P = .03 and P = .003, respectively). Participants in the medical group reported a high comfort level with the kit and the process of tissue collection. CONCLUSIONS: Medical management of a missed abortion followed by patient-controlled collection of products of conception for subsequent cytogenetic analysis is well tolerated and highly effective. This methodology may reduce the need for surgical management, empower women to have more agency in their medical decisions, and increase access to genetic testing. PMID- 29338096 TI - Controlling Selectivity in Aliphatic C-H Oxidation through Supramolecular Recognition. AB - Aliphatic C-H oxidation is the most straightforward approach to functionalize hydrocarbon skeletons. The main challenge of this reaction is the control of site selectivity, given the multiple C-H bonds present in any organic molecule. Natural enzymes elegantly solve this problem through the interplay of different interactions that geometrically orient the substrate to expose a single C-H bond to the active unit, thus overriding intrinsic reactivity patterns. A combination of molecular catalysts and supramolecular receptors can be a promising way to replicate such control. This strategy indeed unlocks hydroxylation of C-H bonds that are not accessible with conventional methodologies, in which the selectivity is dictated by the geometry of the substrate-receptor adduct. Herein, we review the reports of recognition-driven C-H oxidation reactions and highlight the key design principles that inspired these works. PMID- 29338097 TI - Synthesis of Multifunctional Spirocyclic Azetidines and Their Application in Drug Discovery. AB - The synthesis of multifunctional spirocycles was achieved from common cyclic carboxylic acids (cyclobutane carboxylate, cyclopentane carboxylate, l-proline, etc.). The whole sequence included only two chemical steps-synthesis of azetidinones, and reduction into azetidines. The obtained spirocyclic amino acids were incorporated into a structure of the known anesthetic drug Bupivacaine. The obtained analogues were more active and less toxic than the original drug. We believe that this discovery will lead to a wide use of spirocyclic building blocks in drug discovery in the near future. PMID- 29338099 TI - Establishing the Critical Role of Oriented Aggregation in Molecular Solid State Fluorescence Enhancement. AB - The general occurrence of fluorescence emission quenching in molecular aggregates is circumvented in select classes of molecules. This has largely been attributed to the rigidification of the molecule and its environment, which hinders non radiative excited state energy loss through structural relaxation; since such an effect should in principle apply to most aggregates and crystals, there must clearly be other critical factors that make the select molecules exceptional. Discovery of three crystalline structures of a new push-pull molecule in its enantiomorphic and racemic forms, exhibiting not only very high, but distinctly different solid state fluorescence enhancements, has now allowed a systematic investigation of the role of intramolecular and intermolecular excited state energy loss pathways. Crystallographic, spectroscopic and computational investigations provide a detailed appraisal of the assembly patterns in the crystals, and rigorous establishment of an inverse correlation between intermolecular energy transfer and solid state fluorescence. The study provides a clear visualization of the critical role of oriented molecular aggregation in solid state fluorescence efficiency enhancement. PMID- 29338098 TI - Increase in motility and invasiveness of MCF7 cancer cells induced by nicotine is abolished by melatonin through inhibition of ERK phosphorylation. AB - Through activation of the ERK pathway, nicotine, in both normal MCF-10A and low malignant breast cancer cells (MCF7), promotes increased motility and invasiveness. Melatonin antagonizes both these effects by inhibiting almost completely ERK phosphorylation. As melatonin has no effect on nonstimulated cells, it is likely that melatonin can counteract ERK activation only downstream of nicotine-induced activation. This finding suggests that melatonin hampers ERK phosphorylation presumably by targeting a still unknown intermediate factor that connects nicotine stimulation to ERK phosphorylation. Furthermore, downstream of ERK activation, melatonin significantly reduces fascin and calpain activation while restoring normal vinculin levels. Melatonin also counteracts nicotine effects by reshaping the overall cytoskeleton architecture and abolishing invasive membrane protrusion. In addition, melatonin decreases nicotine-dependent ROCK1/ROCK2 activation, thus further inhibiting cell contractility and motility. Melatonin actions are most likely attributable to ERK inhibition, although melatonin could display other ERK-independent effects, namely through a direct modulation of additional molecular and structural factors, including coronin, cofilin, and cytoskeleton components. PMID- 29338100 TI - Fixing the Conformation of Calix[4]arenes: When Are Three Carbons Not Enough? AB - Calix[4]arenes are unique macrocycles that through judicious functionalisation at the lower rim can be either fixed in one of four conformations or remain conformationally flexible. Introduction of propynyl or propenyl groups unexpectedly provides a new possibility; a unidirectional conformational switch, with the 1,3-alternate and 1,2-alternate conformers switching to the partial cone conformation, whilst the cone conformation is unchanged, under standard experimental conditions. Using 1 H NMR kinetic studies, rates of switching have been shown to be dependent on the starting conformation, upper-rim substituent, where reduction in bulk enables faster switching, solvent and temperature with 1,2-alternate conformations switching fastest. Ab initio calculations (DFT) confirmed the relative stabilities of the conformations and point towards the partial cone conformer being the most stable of the four. The potential impact on synthesis through the "click" reaction has been investigated and found not to be significant. PMID- 29338101 TI - Mechanochromic Polymers That Turn Green Upon the Dissociation of Diarylbibenzothiophenonyl: The Missing Piece toward Rainbow Mechanochromism. AB - Mechanochromic polymers, that is, polymers sensitive to mechanical impact, promise great potential for applications in damage sensors. In particular, radical-type mechanochromic polymers, which produce colored radical species in response to mechanical stress, may enable not only the visualization of mechanical stress, but also its quantitative evaluation by electron paramagnetic resonance analysis. Herein, a radical-type mechanochromic polymer that exhibits a color change from white to green upon dissociation of a diarylbibenzothiophenonyl moiety at the mid-point of a polystyrene chain is presented, and its mechanochromic behavior is examined. Mechanochromic materials that show a variety of colors ("rainbow colors") in response to mechanical stress were prepared by simply mixing radical-type mechanochromic polymers of primary colors. PMID- 29338102 TI - Circulating Serum 25-Hydroxyvitamin D Levels and Bone Mineral Density: Mendelian Randomization Study. AB - There is considerable discussion of the importance for increased serum 25 hydroxyvitamin D (S-25OHD) concentration associated with adequacy for bone health. Accordingly, whether long-term high S-25OHD concentration in general positively affects bone mineral density (BMD) is uncertain. We used a Mendelian randomization design to determine the association between genetically increased S 25OHD concentrations and BMD. Five single-nucleotide polymorphisms (SNPs) in or near genes encoding enzymes and carrier proteins involved in vitamin D synthesis or metabolism were used as instrumental variables to genetically predict 1 standard deviation increase in S-25OHD concentration. Summary statistics data for the associations of the S-25OHD-associated SNPs with dual-energy X-ray absorptiometry (DXA)-derived femoral neck and lumbar spine BMD were obtained from the Genetic Factors for Osteoporosis (GEFOS) Consortium (32,965 individuals) and ultrasound-derived heel estimated BMD from the UK Biobank (142,487 individuals). None of the SNPs were associated with BMD at Bonferroni-corrected significance level, but there was a suggestive association between rs6013897 near CYP24A1 and femoral neck BMD (p = 0.01). In Mendelian randomization analysis, genetically predicted 1 standard deviation increment of S-25OHD was not associated with higher femoral neck BMD (SD change in BMD 0.02; 95% confidence interval [CI] 0.03 to 0.07; p = 0.37), lumbar spine BMD (SD change in BMD 0.02; 95% CI -0.04 to 0.08; p = 0.49), or estimated BMD (g/cm2 change in BMD -0.03; 95% CI -0.05 to 0.01; p = 0.02). This study does not support a causal association between long term elevated S-25OHD concentrations and higher BMD in generally healthy populations. These results suggest that more emphasis should be placed on the development of evidence-based cut-off points for vitamin D inadequacy rather than a general recommendation to increase S-25OHD. (c) 2018 American Society for Bone and Mineral Research. PMID- 29338104 TI - Organotin Dyes Bearing Anionic Boron Clusters as Cell-Staining Fluorescent Probes. AB - Within the cell nucleus, in the nucleoli, ribosomal RNAs are synthesized and participate in several biological processes. To better understand nucleoli related processes, their visualization is often required, for which specific markers are needed. Herein, we report the design of novel fluorescent organotin compounds derived from 4-hydroxy-N'-((2-hydroxynaphthalen-1 yl)methylene)benzohydrazide and their cytoplasm and nucleoli staining of B16F10 cells in vitro. Tin compounds bearing an aliphatic carbon chain (-C12 H25 ) and an electron-donating group (-OH) were prepared, and the latter could be derivatized to bear the boron cluster anions [B12 H12 ]2- and [3,3'-Co(1,2-C2 B9 H11 )2 ]- (COSAN). All of the conjugates have been fully characterized and their luminescence properties have been assessed. In general, they show good quantum yields in solution (24-49 %), those for the COSAN derivatives being lower. Remarkably, the linking of [B12 H12 ]2- and COSAN to the complexes made them more soluble, without being detrimental to their luminescence properties. Living B16F10 cells were treated with all of the compounds to determine their fluorescence staining properties; the compounds bearing the aliphatic chain showed a reduced staining capacity due to the formation of aggregates. Notably, the complexes bearing different boron clusters showed different staining effects; those bearing [B12 H12 ]2- showed extraordinary staining of the nucleoli and cytoplasm, whereas those bearing COSAN were only detected in the cytoplasm. The remarkable fluorescence staining properties shown by these organotin compounds make them excellent candidates for fluorescence bioimaging in vitro. PMID- 29338105 TI - Multiple sclerosis: long-term outcomes in ethnic minorities. Analysis of a UK population-based registry. AB - BACKGROUND AND PURPOSE: Multiple sclerosis (MS) is most frequent in Caucasian populations. However, studies of MS in other ethnic groups may offer unique insights into genetic and environmental influences on the disease, and data on long-term outcomes in these patients is limited. In this work clinical features and time to disability milestones were investigated in ethnic minority (EM) patients with MS in a UK population and comparisons were made to a Caucasian cohort from the same region. METHODS: In all, 1949 MS patients (1866 Caucasian, 83 EM) were identified from a regional disease registry. Cox proportional hazards regression was used to analyse the time to Expanded Disability Status Scale (EDSS) 3.0, 4.0 and 6.0. RESULTS: Ethnic minority patients were younger at disease onset (28.6 years vs. 32.8 years, P = 0.001), and primary progressive MS was less common (EM 4.8%, Caucasian 11.6%, P = 0.03). After correction for clinical variables, ethnicity was associated with time to EDSS 3.0 [EM: hazard ratio (HR) 1.75, P < 0.0001] and 4.0 (HR 1.46, P = 0.03), but not 6.0 (HR 1.5, P = 0.05). CONCLUSIONS: Ethnic minority patients reach early levels of fixed disability more rapidly than Caucasian patients, but this effect diminishes at later stages of the disease. This has implications for clinical management of these patients. PMID- 29338106 TI - Morning hypertension in Asian populations. PMID- 29338103 TI - Interrogating Protein Phosphatases with Chemical Activity Probes. AB - Protein phosphatases, while long overlooked, have recently become appreciated as drivers of both normal- and disease-associated signaling events. As a result, the spotlight is now turning torwards this enzyme family and efforts geared towards the development of modern chemical tools for studying these enzymes are well underway. This Minireview focuses on the evolution of chemical activity probes, both optical and covalent, for the study of protein phosphatases. Small-molecule probes, global monitoring of phosphatase activity through the use of covalent modifiers, and targeted fluorescence-based activity probes are discussed. We conclude with an overview of open questions in the field and highlight the potential impact of chemical tools for studying protein phosphatases. PMID- 29338107 TI - How often is the diagnosis of the permanent vegetative state incorrect? A review of the evidence. AB - Some research suggests that 40% of people in the vegetative state are misdiagnosed. This review investigates the frequency, nature and causes of reported misdiagnosis of patients in the vegetative state, focusing on the nature of the error. It is a systematic review of all relevant literature, using references from key papers identified. The data are summarized in tables. Five clinical studies of the rate of misdiagnosis in practice were identified, encompassing 236 patients in the vegetative state of whom 80 (34%) were reclassified as having some awareness, often minimal. The studies often included patients in the recovery phase after acute injury, and were poorly reported. Five systematic reviews of signs and technologically based neurophysiological tests were identified, and they showed that most studies were small, lacked accurate or important details, and were subject to bias. Studies were not replicated. Many signs and tests did not differ between people in the vegetative state and in the minimally conscious state, and those that did were unable to diagnose an individual patient. The few single case reports suggest that failure to ensure an accurate diagnosis of the underlying neurological damage and dysfunction could, rarely, lead to significant misdiagnosis usually in patients who had brain-stem damage with little thalamic or cortical damage. Significant misdiagnosis of awareness, with an apparently 'vegetative' patient having good awareness, is rare. Careful neurological assessment of the cause and routine measurement of awareness using the Coma Recovery Scale - Revised should further reduce mistakes. PMID- 29338108 TI - The timing of liver resection in patients with colorectal cancer and synchronous liver metastases: a population-based study of current practice and survival. AB - AIM: There is uncertainty regarding the optimal sequence of surgery for patients with colorectal cancer (CRC) and synchronous liver metastases. This study was designed to describe temporal trends and inter-hospital variation in surgical strategy, and to compare long-term survival in a propensity score-matched analysis. METHOD: The National Bowel Cancer Audit dataset was used to identify patients diagnosed with primary CRC between 1 January 2010 and 31 December 2015 who underwent CRC resection in the English National Health Service. Hospital Episode Statistics data were used to identify those with synchronous liver limited metastases who underwent liver resection. Survival outcomes of propensity score-matched groups were compared. RESULTS: Of 1830 patients, 270 (14.8%) underwent a liver-first approach, 259 (14.2%) a simultaneous approach and 1301 (71.1%) a bowel-first approach. The proportion of patients undergoing either a liver-first or simultaneous approach increased over the study period from 26.8% in 2010 to 35.6% in 2015 (P < 0.001). There was wide variation in surgical approach according to hospital trust of diagnosis. There was no evidence of a difference in 4-year survival between the propensity score-matched cohorts according to surgical strategy: bowel first vs simultaneous [hazard ratio (HR) 0.92 (95% CI: 0.80-1.06)] or bowel first vs liver first [HR 0.99 (95% CI: 0.82 1.19)]. CONCLUSION: There is evidence of wide variation in surgical strategy in dealing with CRC and synchronous liver metastases. In selected patients, the simultaneous and liver-first strategies have comparable long-term survival to the bowel-first approach. PMID- 29338110 TI - Is it time to utilize measurement of arterial stiffness to identify and reduce the risk of cognitive impairment? PMID- 29338109 TI - Fused-Ring Formation by an Intramolecular "Cut-and-Sew" Reaction between Cyclobutanones and Alkynes. AB - The development of a catalytic intramolecular "cut-and-sew" transformation between cyclobutanones and alkynes to construct cyclohexenone-fused rings is described herein. The challenge arises from the need for selective coupling at the more sterically hindered proximal position, and can be addressed by using an electron-rich, but less bulky, phosphine ligand. The control experiment and 13 C labelling study suggest that the reaction may start with cleavage of the less hindered distal C-C bond of cyclobutanones, followed by decarbonylation and CO reinsertion to enable Rh insertion at the more hindered proximal position. PMID- 29338111 TI - The exaggerated blood pressure response to exercise in the sub-acute phase after stroke is not affected by aerobic exercise. AB - The prevalence of an exaggerated exercise blood pressure (BP) response is unknown in patients with subacute stroke, and it is not known whether an aerobic exercise program modulates this response. The authors randomized 53 patients (27 women) with subacute stroke to 12 weeks of twice-weekly aerobic exercise (n = 29) or to usual care without scheduled physical exercise (n = 24). At baseline, 66% of the patients exhibited an exaggerated exercise BP response (peak systolic BP >=210 mm Hg in men and >=190 mm Hg in women) during a symptom-limited ergometer exercise test. At follow-up, patients who had been randomized to the exercise program achieved higher peak work rate, but peak systolic BP remained unaltered. Among patients with a recent stroke, it was common to have an exaggerated systolic BP response during exercise. This response was not altered by participation in a 12 week program of aerobic exercise. PMID- 29338112 TI - Benefits and pitfalls of sacubitril/valsartan treatment in patients with hypertension. PMID- 29338113 TI - Efficacy and safety of sacubitril/valsartan in patients with essential hypertension uncontrolled by olmesartan: A randomized, double-blind, 8-week study. AB - A majority of patients with hypertension fail to achieve blood pressure (BP) control despite treatment with commonly prescribed drugs. This randomized, double blind phase III trial assessed the superiority of sacubitril/valsartan 200 mg (97/103 mg) to continued olmesartan 20 mg in reducing ambulatory systolic BP after 8-week treatment in patients with mild to moderate essential hypertension uncontrolled with olmesartan 20 mg alone. A total of 376 patients were randomized to receive either sacubitril/valsartan (n = 188) or olmesartan (n = 188). Superior reductions in 24-hour mean ambulatory systolic BP were observed in the sacubitril/valsartan group vs the olmesartan group (-4.3 mm Hg vs -1.1 mm Hg, P < .001). Reductions in 24-hour mean ambulatory diastolic BP and pulse pressure and office systolic BP and diastolic BP were significantly greater with sacubitril/valsartan vs olmesartan (P < .014). A greater proportion of patients achieved BP control with sacubitril/valsartan vs olmesartan. The overall incidence of adverse events was comparable between the groups. Compared with continued olmesartan, sacubitril/valsartan was more effective and generally safe in patients with hypertension uncontrolled with olmesartan 20 mg. PMID- 29338114 TI - Divergent Pathways Involving 1,3-Dipolar Addition and N-N Bond Splitting of an Organic Azide across a Zirconium Methylidene. AB - The zirconium methylidene (PNP)Zr=CH2 (OAr) (1) reacts with N3 Ad to give two products (PNP)Zr=NAd(OAr) (2) and (PNP)Zr(eta2 -N=NAd)(N=CH2 )(OAr) (3), both resulting from a common cycloaddition intermediate (PNP)Zr(CH2 N3 Ad)(OAr) (A). Using a series of control experiments in combination with DFT calculations, it was found that 2 results from a nitrene by a carbene metathesis reaction in which N2 acts as a delivery vehicle and forms N2 CH2 as a side product. In the case of 3, N-N bond splitting of the azide at the alpha-position allowed the isolation of a rare example of a parent ketimide complex of zirconium. Isotopic labeling studies and solid-state X-ray analysis are presented for 2 and 3, in addition to an independent synthesis for the former. PMID- 29338115 TI - Statin use and vitreoretinal surgery: Findings from a Finnish population-based cohort study. AB - PURPOSE: Vitreoretinal (VR) surgery is the third most common intraocular surgery after refractive and cataract surgery. The impact of statin therapy on VR surgery outcomes remains unclear, despite a potentially beneficial effect. We explored the association of preoperative statin therapy and the need for revitrectomy after primary vitrectomy. METHODS: Our historical, population-based, register based, VR surgery cohort consisted of 5709 patients operated in a tertiary, academic referral hospital in Finland, during 2008-2014, covering 6.5 years. Subgroup analysis was performed as follows: eyes operated due to (i) rhegmatogenous retinal detachment (RRD), (ii) VR interface diseases (macular pucker/hole), (iii) diabetic maculopathy or proliferative retinopathy, (iv) vitreous haemorrhage, (v) lens subluxation, (vi) vitreous opacities or (vii) other VR indication. The primary end-point event was revitrectomy during a postoperative follow-up period of 1 year due to retinal redetachment, vitreous rehaemorrhage, postoperative endophthalmitis, recurrent pucker or unclosed macular hole. RESULTS: Rhegmatogenous retinal detachment (RRD) was the second most frequent indication of VR surgery, including 1916 patients, with 305 re operations with rate 0.20 (95% CI 0.18-0.23) per person-year. Statin treatment in time of operation was associated with lower risk of re-operation according to relative scale (incidence rate ratio 0.72, 95% CI 0.53-0.97), but not in absolute scale (incidence rate difference -0.58, 95% CI -4.30 to 3.15 for 100 person years). No association with statin therapy and vitrectomy outcome was observed in the other VR subgroups. CONCLUSION: Use of statin treatment was associated with a 28% lower risk of revitrectomy in patients operated due to RRD. Further randomized clinical trials are highly warranted. PMID- 29338116 TI - Carbon Dioxide Promotes Dehydrogenation in the Equimolar C2 H2 -CO2 Reaction to Synthesize Carbon Nanotubes. AB - The equimolar C2 H2 -CO2 reaction has shown promise for carbon nanotube (CNT) production at low temperatures and on diverse functional substrate materials; however, the electron-pushing mechanism of this reaction is not well demonstrated. Here, the role of CO2 is explored experimentally and theoretically. In particular, 13 C labeling of CO2 demonstrates that CO2 is not an important C source in CNT growth by thermal catalytic chemical vapor deposition. Consistent with this experimental finding, the adsorption behaviors of C2 H2 and CO2 on a graphene-like lattice via density functional theory calculations reveal that the binding energies of C2 H2 are markedly higher than that of CO2 , suggesting the former is more likely to incorporate into CNT structure. Further, H-abstraction by CO2 from the active CNT growth edge would be favored, ultimately forming CO and H2 O. These results support that the commonly observed, promoting role of CO2 in CNT growth is due to a CO2 -assisted dehydrogenation mechanism. PMID- 29338117 TI - Nestin expression in primary and metastatic uveal melanoma - possible biomarker for high-risk uveal melanoma. AB - PURPOSE: Nestin, a member of the intermediate filament protein family, has been described as a putative cancer stem cell marker (CSC) in uveal melanoma and poor prognostic factor in a variety of tumours, including cutaneous melanoma. In this study, we examined the expression of nestin in primary (PUM) and metastatic uveal melanoma (MUM) samples, and correlated the findings with histological, clinical and survival data. METHODS: Nestin expression was assessed by immunohistochemistry in 141 PUM and 26 MUM samples; 11 PUM cases were matched with their corresponding metastases. The percentage of tumour cells expressing nestin was scored by three independent observers. Statistical analysis of all data was performed with SPSS. RESULTS: Nestin expression was identified in both the cytoplasm and membrane of UM cells. Increased expression of nestin in PUM samples was associated with known poor prognostic parameters, including epithelioid cell morphology (p < 0.001), closed loops (p = 0.001), higher mitotic count (p < 0.001), monosomy 3 (p = 0.007) and chromosome 8q gain (p < 0.001). Primary uveal melanoma (PUM) with nestin expression levels above a cut-off value of 10% [as determined by receiver operating characteristic (ROC) analysis] was associated with a significantly reduced survival time (Log-rank, p = 0.002). In MUM, a higher percentage of nestin-positive tumour cells combined with poor prognostic markers in the PUM led to a shorter survival time following the development of metastases. CONCLUSION: In conclusion, increased nestin expression in PUM is a predictor of a tumour phenotype associated with metastatic progression and reduced survival time at onset of metastasis. PMID- 29338118 TI - Impact of quality of research on patient outcomes in the Institute of Medicine 2013 report on dietary sodium. AB - The 2013 Institute of Medicine report entitled "Sodium Intake in Populations: Assessment of Evidence" found inconsistent evidence of health benefit with dietary sodium intake <2300 mg/d. Different studies reported benefit and harm of population dietary intake <2300 mg/d. The Institute of Medicine committee, however, did not assess whether the methodology used in each of the studies was appropriate to examine dietary sodium and health outcomes. This review investigates the association of methodological rigor and outcomes of studies in the Institute of Medicine report. For the 13 studies that met all methodological criteria, nine found a detrimental impact of high sodium consumption on health, one found a health benefit, and in three the effect was unclear (P = .068). For the 22 studies that failed to meet all criteria, 11 showed a detrimental impact, four a health benefit, and seven had unclear effects from increasing dietary sodium (P = .42). PMID- 29338119 TI - Management of morning hypertension: a consensus statement of an Asian expert panel. AB - Morning blood pressure (BP) surge is an important aspect of hypertension research. Morning BP monitoring could be a clinically relevant concept in the therapeutic management of hypertension and in the prevention of cardiovascular complications by defining and treating morning hypertension. Because antihypertensive medication is often taken in the morning, uncontrolled morning BP during the trough effect hours could be a hallmark of inadequate choice of antihypertensive regimen, such as the use of short- or intermediate-acting drugs, underdosing of drugs, or no use or underuse of combination therapy. To improve the management of hypertension in general and morning hypertension in particular, long-acting antihypertensive drugs should be used in appropriate, often full dosages and in proper combinations. The clinical usefulness of antihypertensive drugs with specific mechanisms for morning BP or split or timed dosing of long acting drugs in controlling morning BP remains under investigation. PMID- 29338120 TI - The association between different features of sleep-disordered breathing and blood pressure: A cross-sectional study. AB - Sleep disordered breathing (SDB) is highly prevalent in patients with high blood pressure (BP). Severity of SDB can be evaluated by the number of apneas and hypopneas per hour (AHI) or by measures of hypoxia. The objective of this study was to assess the association between different measures of SDB and BP. In 134 consecutive patients, polygraphy was performed to determine the AHI. Pulse oximetry was used to determine hypoxemic burden (time below 90% oxygen saturation [T90] and hypoxia load [HL], representing the integrated area above the curve of desaturation). AHI did not correlate with systolic and diastolic BP or pulse pressure. In contrast, HL correlated with pulse pressure during the day (P = .01) and night (P = .0034) before and after adjustment for body mass index. The correlation between systolic BP and HL at night disappeared following adjustment for body mass index. This study generates the hypothesis that nocturnal hypoxemic burden may represent a suitable marker of BP pattern and a potential treatment target in hypertensive patients. PMID- 29338121 TI - Does Confucianism allow for body donation? AB - Confucianism has been widely perceived as a major moral and cultural obstacle to the donation of bodies for anatomical purposes. The rationale for this is the Confucian stress on xiao (filial piety), whereby individuals' bodies are to be intact at death. In the view of many, the result is a prohibition on the donation of bodies to anatomy departments for the purpose of dissection. The role of dissection throughout the development of anatomy within a Confucian context is traced, and in contemporary China the establishment of donation programs and the appearance of memorial monuments is noted. In reassessing Confucian attitudes, the stress laid on a particular interpretation of filial piety is questioned, and an attempt is made to balance this with the Confucian emphasis on a moral duty to those outside one's immediate family. The authors argue that the fundamental Confucian norm ren (humaneness or benevolence) allows for body donation as people have a moral duty to help others. Moreover, the other central Confucian value, li (rites), offers important insights on how body donation should be performed as a communal activity, particularly the necessity of developing ethically and culturally appropriate rituals for body donation. In seeking to learn from this from a Western perspective, it is contended that in all societies the voluntary donation of bodies is a deeply human activity that is to reflect the characteristics of the community within which it takes place. This is in large part because it has educational and personal repercussions for students. Anat Sci Educ 11: 525-531. (c) 2018 American Association of Anatomists. PMID- 29338122 TI - NO, CO and H2 S: What about gasotransmitters in fish and amphibian heart? AB - The gasotransmitters nitric oxide (NO), carbon monoxide (CO), and hydrogen sulphide (H2 S), long considered only toxicant, are produced in vivo during the catabolism of common biological molecules and are crucial for a large variety of physiological processes. Mounting evidence is emerging that in poikilotherm vertebrates, as in mammals, they modulate the basal performance of the heart and the response to stress challenges. In this review, we will focus on teleost fish and amphibians to highlight the evolutionary importance in vertebrates of the cardiac control elicited by NO, CO and H2 S, and the conservation of the intracellular cascades they activate. Although many gaps are still present due to discontinuous information, we will use examples obtained by studies from our and other laboratories to illustrate the complexity of the mechanisms that, by involving gasotransmitters, allow beat-to-beat, short-, medium- and long-term cardiac homoeostasis. By presenting the latest data, we will also provide a framework in which the peculiar morpho-functional arrangement of the teleost and amphibian heart can be considered as a reference tool to decipher cardiac regulatory networks which are difficult to explore using more conventional vertebrates, such as mammals. PMID- 29338123 TI - Choroidal thickness and myopia in relation to physical activity - the CHAMPS Eye Study. AB - PURPOSE: To describe the relationship between choroidal thickness (CT) and myopia in relation to physical activity (PA) in a population-based child cohort. METHODS: In a prospective study of 307 children from the CHAMPS Study Denmark, we used objective data from GT3X accelerometer worn at four periods between 2009 and 2015 to determine the amount and intensity of PA. Intensity was estimated as counts/minutes, and cut-off points were defined at four intensity levels. Eye examinations were performed in 2015 and included autorefraction in cycloplegia, axial length (AL) by biometric and fovea-centred enhanced depth imaging optical coherence tomography. By a semi-automated method, we measured the CT at 17 targets per eye representing anatomically different locations (subfoveal, 1 and 3 millimetre in each direction of fovea). RESULTS: Mean age at the eye examination was 15.4 +/- 0.7 years. The mean AL was 23.5 +/- 0.9 mm, and the mean subfoveal CT was 369 +/- 87 MUm. Choroidal thickness (CT) was 331 +/- 68 MUm for the overall macula, 355 +/- 78 MUm for the 1-mm zone and 304 +/- 60 MUm for the 3-mm zone. All CT measurements were thinner in myopic eyes (p < 0.0001) and in boys (p < 0.05). We found no association between total PA and the CT by either mixed model analysis (p = 0.074) or linear regression by any intensity levels (p = 0.22, p = 0.15 and p = 0.43). CONCLUSION: Among adolescents aged 14-17 years, there was no association between objective PA exposures and the CT, AL or refractive error. PMID- 29338125 TI - Innovative case-writing software can engage millennials in learning pathology topics. PMID- 29338124 TI - Conservative therapy for chalazia: is it really effective? AB - PURPOSE: To assess the within-treatment efficacy of hot compresses (HC), HC plus tobramycin (Tobrex) and HC plus tobramycin/dexamethasone (Tobradex) for chalazia treatment. METHODS: Design: Multicentre, randomized clinical trial (ClinicalTrials.gov identifier, NCT01230593). SETTING: Two clinical sites in New York and two clinical sites in Ontario. STUDY POPULATION: A total of 149 patients with one or more chalazia on separate eyelids randomly assigned to receive HC (n = 50), HC plus tobramycin (n = 50) or HC plus tobramycin/dexamethasone (n = 49). INTERVENTION: 4-6 weeks of assigned treatment. Patients were measured for chalazion horizontal width and surveyed for pain and treatment satisfaction levels. MAIN OUTCOME MEASURES: Primary outcome was complete resolution (100% size reduction). Secondary outcomes were size change in millimetres and patient reported pre- and post-treatment pain and satisfaction levels. RESULTS: In the intention-to-treat (ITT) population, complete resolution occurred in 36 (18%) lesions total, 13 (21%) treated with HC, 12 (16%) with HC plus tobramycin and 11 (18%) with HC plus tobramycin/dexamethasone, with no significant difference between them (p = .78). Individually by paired t-test, there were statistically significant post-treatment mean size differences: HC 1.20 mm (p < 0.001), HC plus tobramycin 1.69 mm (p < .001) and HC plus tobramycin/dexamethasone 1.54 mm (p < 0.001), but no significant difference between them (p = .61). Lesions that completely resolved had a statistically significant lower pretreatment duration (1.5 months) compared to lesions that did not completely resolve (2.2 months) (p = .04). CONCLUSION: Hot compresses (HC) alone or in combination with tobramycin or tobramycin/dexamethasone drops and ointment are all effective first-line treatment options for chalazia. However, physicians may consider moving directly to the use of more invasive therapies, such as incision and curettage or steroid injections, for chalazia that have been present for more than 2 months, as older lesions are less likely to resolve with conservative therapies alone. PMID- 29338126 TI - Physical exercise and glaucoma: a review on the roles of physical exercise on intraocular pressure control, ocular blood flow regulation, neuroprotection and glaucoma-related mental health. AB - The benefits of physical exercise on health and well-being have been studied in a wide range of systemic and ocular diseases, including glaucoma, a progressive optic neuropathy characterized by accelerated apoptosis of retinal ganglion cells (RGCs). Elevated intraocular pressure (IOP) and insufficient ocular perfusion have been postulated to be the two main theories in glaucoma development and progression. The effects of exercise in these two aspects have been demonstrated by numerous researches. A review in 2009 focusing on these two theories concluded that exercise results in transient IOP reduction but an inconsistent elevation in ocular perfusion. However, the majority of the studies had been conducted in healthy subjects. Over the past decade, technological advancement has brought forth new and more detailed evidence regarding the effects of exercise. Moreover, the neuroprotective effect of exercise by upregulation of neurotrophin and enhancement of mitochondrial function has been a focus of interest. Apart from visual impairment, the mental health issues in patients with glaucoma, which include anxiety and depression, should also be addressed. In this review, we mainly focus on publications from the recent years, so as to provide a comprehensive review on the impact of physical exercise on IOP, ocular perfusion, neuroprotection and mental health in patients with glaucoma. PMID- 29338127 TI - Establishment of practical recellularized liver graft for blood perfusion using primary rat hepatocytes and liver sinusoidal endothelial cells. AB - Tissue decellularization produces a three-dimensional scaffold that can be used to fabricate functional liver grafts following recellularization. Inappropriate cell distribution and clotting during blood perfusion hinder the practical use of recellularized livers. Here we aimed to establish a seeding method for the optimal distribution of parenchymal and endothelial cells, and to evaluate the effect of liver sinusoidal endothelial cells (LSECs) in the decellularized liver. Primary rat hepatocytes and LSECs were seeded into decellularized whole-liver scaffolds via the biliary duct and portal vein, respectively. Biliary duct seeding provided appropriate hepatocyte distribution into the parenchymal space, and portal vein-seeded LSECs simultaneously lined the portal lumen, thereby maintaining function and morphology. Hepatocytes co-seeded with LSECs retained their function compared with those seeded alone. Platelet deposition was significantly decreased and hepatocyte viability was maintained in the co-seeded group after extracorporeal blood perfusion. In conclusion, our seeding method provided optimal cell distribution into the parenchyma and vasculature according to the three-dimensional structure of the decellularized liver. LSECs maintained hepatic function, and supported hepatocyte viability under blood perfusion in the engineered liver graft owing to their antithrombogenicity. This recellularization procedure could help produce practical liver grafts with blood perfusion. PMID- 29338128 TI - Clinical experience of laboratory follow-up with noninvasive prenatal testing using cell-free DNA and positive microdeletion results in 349 cases. AB - OBJECTIVE: Screening via noninvasive prenatal testing (NIPT) involving the analysis of cell-free DNA (cfDNA) from plasma has become readily available to screen for chromosomal and DNA aberrations through maternal blood. This report reviews a laboratory's experience with follow-up of positive NIPT screens for microdeletions. METHODS: Patients that were screened positive by NIPT for a microdeletion involving 1p, 4p, 5p, 15q, or 22q who underwent diagnostic studies by either chorionic villus sampling or amniocentesis were evaluated. RESULTS: The overall positive predictive value for 349 patients was 9.2%. When a microdeletion was confirmed, 39.3% of the cases had additional abnormal microarray findings. Unrelated abnormal microarray findings were detected in 11.8% of the patients in whom the screen positive microdeletion was not confirmed. Stretches of homozygosity in the microdeletion were frequently associated with a false positive cfDNA microdeletion result. CONCLUSIONS: Overall, this report reveals that while cfDNA analysis will screen for microdeletions, the positive predictive value is low; in our series it is 9.2%. Therefore, the patient should be counseled accordingly. Confirmatory diagnostic microarray studies are imperative because of the high percentage of false positives and the frequent additional abnormalities not delineated by cfDNA analysis. PMID- 29338129 TI - Three-dimensional visualization and volume quantification of pigment epithelium detachments. PMID- 29338130 TI - Correlation between morphological characteristics in spectral-domain-optical coherence tomography, different functional tests and a patient's subjective handicap in acute central serous chorioretinopathy. AB - PURPOSE: The purpose of this study was to identify quantitatively measurable morphologic optical coherence tomography (OCT) characteristics in patients with an acute episode of central serous chorioretinopathy (CSC) and evaluate their correlation to functional and psychological variables for their use in daily clinical practice. METHODS: Retinal thickness (RT), the height, area and volume of subretinal fluid (SRF)/pigment epithelium detachments were evaluated using the standardized procedures of the Vienna Reading Center. These morphologic characteristics were compared with functional variables [best-corrected visual acuity (BCVA), contrast sensitivity (CS), retinal sensitivity/microperimetry, fixation stability], and patients' subjective handicap from CSC using the National Eye Institute 25-item Visual Function Questionnaire (NEI VFQ-25). RESULTS: Data from 39 CSC patients were included in this analysis. Three different SRF height measures showed a high negative correlation (r = -0.7) to retinal sensitivity within the central 9 degrees , which was also negatively correlated with SRF area and volume (r = -0.6). The CS score and fixation stability (fixation points within 2 degrees ) showed a moderate negative correlation (r = -0.4) with SRF height variables. Comparison of the subjective handicap with morphological characteristics in spectral-domain (SD)-OCT showed SRF height had the highest correlation (r = -0.4) with the subjective problems reported and overall NEI VFQ-25 score. CONCLUSION: In conclusion, SRF height measured in SD-OCT showed the best correlation with functional variables and patients' subjective handicap caused by the disease and therefore seems to be the best variable to look at in daily clinical routine. Even though area and volume also show a correlation, these cannot be so easily measured as height and are therefore not suggested for daily clinical routine. PMID- 29338131 TI - Gross anatomy education for South African undergraduate physiotherapy students. AB - Eight faculties in South Africa offer undergraduate physiotherapy training with gross anatomy included as a basis for clinical practice. Little information exists about anatomy education for this student body. A 42-question peer-reviewed survey was distributed to physiotherapy gross anatomy course coordinators in all the eight faculties. Seven coordinators from six (75%) of the universities responded. Two respondents' data from the same university were pooled. Collected data show that staff qualifications and experience varied widely and high to average staff to student ratios exist between faculties. Direct anatomy teaching duration was 12.3 (SD +/-5.2) weeks per semester. Total number of weeks in courses per faculty was 27.6 (SD +/-5.7) varying widely between institutions. Calculable direct contact anatomy hours ranged between 100 and 308 with a mean of 207.6 (SD +/-78.1). Direct contact hours in lectures averaged 3.9 (SD +/-1.6) per week and the average direct contact hours in practical sessions were 3.5 (SD +/ 1.8) per week. Dissection, prosection, plastinated models, surface anatomy, and e learning were available across faculties. Ancillary modalities such as vertical integration and inter-professional learning were in use. All faculties had multiple-choice questions, spot tests, and short examination questions. Half had viva-voce examinations and one had additional long questions assessment. Students evaluated teaching performance in five faculties. Four faculties were reviewing anatomy programs to consider implementing changes to anatomy curriculum or pedagogy. The findings highlighted disparity between programs and also identified the need for specific guidelines to develop a unified South African gross anatomy course for physiotherapy students. PMID- 29338132 TI - Tumour thickness, diameter, area or volume? The prognostic significance of conventional versus digital image analysis-based size estimation methods in uveal melanoma. AB - PURPOSE: The aim of this study was to compare conventional and novel size estimation methods' ability to predict survival in uveal melanoma (UM). METHODS: The study was designed as a retrospective consecutive chart review of patients with UM, enucleated between the years 1984 and 1993. Area and volume were estimated based on the largest histopathological cross-section, the second centroid theorem of Pappus and digital image analysis, correlated to overall and relative survival. RESULTS: Of 168 patients analysed, 20 (12%) of tumours were categorized as T1, 47 (28%) as T2, 67 (40%) as T3 and 19 (11%) as T4 (15 N/a). A total of 91 tumours with complete survival and measurement data were included and recategorized into small, medium and large volume groups. Increased separation of overall survival was seen compared with current American Joint Committee on Cancer T categories. Difference between the large and small volume groups was 8.6 years (p = 0.001), compared to a difference of 5.6 years (p = 0.091) between T1 and T4. Hazard ratio for all-cause mortality in the large versus small volume group was 2.6 compared to 1.9 for T4 versus T1. Relative survival rates for small, medium and large volumes were 62, 44 and 31% at 10 years, versus 50, 45, 56 and 0% for T1, T2, T3 and T4. CONCLUSION: This study provides evidence that a novel UM volume estimation method might offer a practical and cost-efficient alternative to improve the prognostic value intrinsic to a tumour's size. PMID- 29338133 TI - Pimasertib-associated ophthalmological adverse events. AB - PURPOSE: To analyse ophthalmological adverse events associated with mitogen activated protein kinase kinase (MEK) inhibition with pimasertib treatment for metastatic cutaneous melanoma (CM). METHODS: In this prospective observational, cohort-based, cross-sectional study, eight patients treated with the MEK inhibitor pimasertib received a complete ophthalmic examination. This included Early Treatment of Diabetic Retinopathy Study best-corrected visual acuity, visual field testing, colour vision testing, slit-lamp examination, applanation tonometry, indirect ophthalmoscopy, digital colour fundus photography and optical coherence tomography (OCT). In selected cases, fluorescein angiography was performed. RESULTS: Serous subretinal fluid (SRF) developed in all patients, within a time frame of 9-27 days after the start of treatment. The fovea was involved in six of eight patients (75%). None of the patients with foveal SRF [excluding a patient who developed a bilateral retinal vein occlusion (RVO)] experienced visual symptoms. Subretinal fluid (SRF) decreased or resolved in all patients, despite continuation of study medication in six of eight patients (75%). Complaints in the CM patient (13%) consisted of experiencing a dark fleck in the inferior part of the visual field of the right eye 1 week after the start of treatment, due to an RVO. Subsequent intravitreal bevacizumab treatment resulted in functional and anatomical improvement. CONCLUSION: Patients with metastatic CM who are treated with the MEK inhibitor pimasertib are at high risk of development of ocular adverse events including serous retinopathy and possibly RVO, stressing the need of adequate ophthalmological follow-up including OCT during administration of pimasertib, despite the fact that SRF generally does not lead to ophthalmological complaints. PMID- 29338134 TI - Retinal oximetry is affected in multiple sclerosis. AB - PURPOSE: Structural and physiological abnormalities have been reported in the retina in patients with multiple sclerosis (MS). Retinal oximetry has recently detected changes in retinal oxygen metabolism in Alzheimer's disease and mild cognitive impairment. Our goal was to determine whether oxygen saturation in retinal blood vessels of patients with patients is different from that of a healthy population. METHODS: Oxygen saturation of haemoglobin was measured in retinal blood vessels, using imaging with spectrophotometric noninvasive retinal oximeter. Eight MS patients with history of optic neuritis were measured and compared to 22 healthy individuals matched in age and gender. RESULTS: Venular oxygen saturation was increased in patients with MS compared to healthy individuals (70.7 +/- 3.4% versus 66.2 +/- 4.7; p = 0.021, mean +/- SD). The arteriovenous (AV) difference was lower in patients with MS compared to healthy (26.6 +/- 3.6% versus 30.5 +/- 4.8%; p = 0.049). There was no difference measured in arterioles when patients with MS (97.3 +/- 1.7%) and healthy individuals (96.7 +/- 2.8%) were compared. CONCLUSION: Increased venular oxygen saturation and lower AV difference in patients with MS may indicate reduced oxygen uptake. This may be due to less oxygen demand following atrophy and may be a useful objective biomarker for MS. Further studies are needed to confirm and expand these findings. PMID- 29338135 TI - The influence of type 2 diabetes mellitus on the frequency and complexity of ventricular arrhythmias and heart rate variability in patients after myocardial infarction. AB - Background/Aim: After myocardial infarction arrhythmic cardiac deaths are significantly more frequent compared to non-arrhythmic ones. The aim of the study was to investigate the influence of type 2 diabetes mellitus (T2DM) on the frequency and complexity of ventricular arrhythmias after myocardial infarction. Methods: The study included 293 patients, mean age 59.5 +/- 9.21 years, who were at least six months after acute myocardial infarction with the sinus rhythm, without atrioventricular blocks and branch blocks. In the clinical group 95 (32.42%) patients were with T2DM, while 198 (67.57%) patients were without diabetes. All of the patients were subjected to the following procedures: standard ECG according to which the corrected QT dispersion (QTdc) was calculated, exercise stress test, and 24-hour holter monitoring according to which, the four parameters of time domain of heart rate variability (HRV) were analyzed: standard deviation of all normal RR intervals during 24 hours (SDNN), standard deviation of the averages of normal RR intervals in all five-minute segments during 24 hours (SDANN), the square root of the mean of the sum of the squares of differences between adjacent normal (RMS-SD), and percentage of consequtive RR intervals which differed for more than 50 ms during 24 hours (NN > 50 ms). Results: In patients after myocardial infarction, patients with T2DM had significantly higher percentage of frequent and complex ventricular arrhythmias compared to the patients without diabetes (p < 0.001). The patients with T2DM had significantly higher percentage of residual ischemia (p < 0.001), and arterial hypertension (p < 0.001), compared to patients without diabetes. The patients with T2DM had significantly lower values of HRV parameters: SDNN (p < 0.001); SDANN (p < 0.001); RMS-SD (p < 0.001), and NN > 50 ms (p < 0.001), and significantly higher values of QTdc (p < 0.001) compared to the patients without diabetes. Conclusion: The study showed that type 2 diabetes mellitus has significant influence on ventricular arrhythmias, HRV parameters and QT dispersion in patients after myocardial infarction. PMID- 29338137 TI - Morphological embryo selection: an elective single embryo transfer proposal. AB - OBJECTIVE: To describe a patient selection method for elective single embryo transfer (eSET), emphasizing inclusion criteria and results. METHODS: This retrospective study included all cases seen in a private clinic between June 2011 and December 2016, in La Paz, Bolivia (3600 meters above sea level). Elective single embryo transfer was the method of choice in 34 IVF/ICSI cycles, all in the blastocyst stage. Gardner's blastocyst classification criteria were used. Between the two stages of the study (July 2015), each embryo grade implantation rate was recalculated, which led to the expansion of the inclusion criteria. RESULTS: The clinical pregnancy rate of the 34 cases in the first transfer group was 55.9% (19/34). Twin or multiple pregnancies did not occur. The cumulative pregnancy rate to date is 64% [(19+3)/34]. The first stage comprised 2.56% (12/468) of the patients offered elective single embryo transfers; the implantation rate was 58.3% (7/12). In the second stage, 14.29% (22/154) of the patients were eligible, and the implantation rate was 54.55% (12/22). CONCLUSIONS: The implementation of an eSET program based on in-depth morphological embryo assessment combined with the calculation of the implantation potential of each embryo grade led to acceptable clinical outcomes and fewer multiple pregnancies in patients transferred two embryos. Each clinic should be aware of the implantation rates of each embryo grade in its own setting. PMID- 29338136 TI - Plasmatic estradiol concentration in the mid-luteal phase is a good prognostic factor for clinical and ongoing pregnancies, during stimulated cycles of in vitro fertilization. AB - OBJECTIVE: To evaluate the predictive efficiency of serum estradiol (E2) concentration in the mid-luteal phase regarding chemical, clinical, and ongoing pregnancies, in patients subjected to IVF/ICSI with fresh embryo transfer. METHODS: One hundred and forty-three patients undergoing IVF/ICSI met all the inclusion criteria for the present study. Most of the patients used antagonists, final maturation was achieved with recombinant chorionic gonadotrophin (HCG), and embryo transfer took place on days 3 to 5, but mostly on day 4. The luteal phase was supplemented with estradiol valerate 6 mg/day and vaginal micronized progesterone 600 mg/day. There was no exclusion of patients in the embryo transfer group due to age or ovarian reserve. All patients with estradiol and chorionic gonadotrophin (betaHCG) dosage on the day of transfer, day 7, were included. We assessed the following variables, initially regarding age: number of eggs collected, formed embryos, embryos transferred, day of transfer, transfer type, estradiol and chorionic gonadotropin. Next, we evaluated these elements at three different ranges of estradiol concentrations (<200 pg/ml, 200-500 pg/ml, and >500 pg/ml), comparing these parameters in pregnant (P) and non-pregnant (NP) patients. RESULTS: Data analysis by age group in P and NP patients showed significant differences in the mean values of the variables E2 and betaHCG, TD7. Mean serum estradiol levels in P and NP in the three age groups were: <35 years, 835/417 p=0.0006, 35-39 years 833/434 p=0.0118, >39 years, 841/394 p=0.0012. There was also a significant difference in pregnancy rates in the group >500 pg/ml of estradiol concentration (63.4%, p=0.0096). The likelihood of chemical and clinical abortions for the estradiol ranges were: 38.46%, involving the two first ranges versus 15.15% for a concentration >500 pg/ml, p=0.0412 and 5.26% for a concentration >900 pg/ml, p=0.0105. The Pearson correlation coefficient for HCG and estradiol was r=0.5108. CONCLUSION: This study showed the prognostic value of E2 in the mid-luteal phase (TD7) for chemical, clinical, and ongoing pregnancies, and its concentration suggested that there is a moderately positive correlation with betaHCG levels. PMID- 29338138 TI - Could cryopreserved human semen samples be stored at -80 degrees C? AB - OBJECTIVE: To evaluate storage time effects in cryopreserved human semen samples, kept in the freezer at a controlled temperature of -80 degrees C, on sperm viability after thawing. METHODS: We used 20 semen samples. Each sample was cryopreserved in 10 fingers, which were divided into five groups: one group was kept in cryogenic canisters throughout the experiment(control), and four groups were kept in a VIP Ultra Low MDF-U76V- PE freezer, with the temperature set at 80 degrees C, for 24, 48, 72 and 96 hours, respectively. After the exposure time, the samples were stored in cryogenic canisters after being thawed. The analyzed parameters were: motility, vitality and mitochondrial activity. RESULTS: After thawing, we noticed decreased sperm motility, vitality and mitochondrial activity, when comparing the tested groups with the control group, as well as a progressive reduction in the analyzed parameters between the times evaluated. CONCLUSIONS: Cryopreservation of semen samples at -80 degrees C is potentially harmful to sperm viability, causing damage when submitted to longer exposure times. PMID- 29338139 TI - Occurrence of ovarian follicular dominance during stimulation for IVM impacts usable blastocyst yield. AB - OBJECTIVE: To evaluate the influence of ovarian follicular dominance on the outcome of oocyte in-vitro maturation. METHODS: This retrospective cohort study included 21 patients with polycystic ovaries or polycystic ovary syndrome (Rotterdam criteria, 2004) subjected to 24 invitro maturation (IVM) cycles between October 2015 and January 2017. Patients undergoing IVM received minimal gonadotropin stimulation starting on day 2 or 3 of the cycle; ovum pick-up typically occurred on days 6 to 8. No hCG-trigger shot was given. Following 30h of IVM, mature oocytes were inseminated by ICSI and the resulting embryos cultured up to the blastocyst stage. RESULTS: Ovarian follicular dominance was observed in nine of the 24 IVM cycles. Oocyte IVM yielded an overall maturation rate of 69.3+/-23.8%, and no difference was observed when the groups with or without a dominant follicle were assessed independently. The rates of fertilization and usable blastocysts per fertilized oocyte, mature oocyte (Metaphase II) or cumulus-oocyte-complex were nearly three times higher (28.7+/ 22.5%) in the group without ovarian follicular dominance. No differences were found in the clinical pregnancy rates attained by the individuals with or without a dominant follicle after 21 vitrified-warmed blastocyst transfer cycles. CONCLUSION: Occurrence of ovarian follicular dominance during hormonal stimulation for in-vitro maturation negatively impacted embryological outcomes. Strategies devised to limit the appearance of ovarian follicular dominance must be further explored. PMID- 29338141 TI - Comparison of the efficacy of femoral nerve block and fascia iliaca compartment block in patients with total knee replacement. AB - BACKGROUND: Blocking the femoral nerve reduces postoperative pain and analgesic consumption in patients who have undergone total knee and hip replacement surgery. A limited number of studies have compared the efficacy of the fascia iliaca compartment and femoral nerve block techniques. Therefore, this study aimed to investigate the analgesic effectiveness of fascia iliaca compartment block (FIB) and femoral nerve block using ultrasound. METHODS: A total of 100 patients were included in the study. Patients were divided into two randomized and equal groups (Group I had patients who underwent fascia iliaca compartment block, N.=50; Group II had patients who underwent femoral nerve block, N.=50). Visual Analogue Scale levels (VAS) in the postoperative 30th min and 1st, 2nd, 6th, 12th and 24th hours and the amounts of analgesic consumption were recorded. The Quality of Recovery-40 (QoR-40) questionnaire was completed by patients 24 hours after surgery. RESULTS: The VAS level at the 24th hour was significantly lower in Group I compared to Group II. Analgesic consumption between 0-30th minutes was lower in Group II than in Group I; however, it was significantly lower in the 6-24 hours of Group I compared to Group II. The QoR-40 score was found to be significantly higher in Group I than Group II. CONCLUSIONS: Femoral nerve block provided more potent analgesia in the first six hours after operation. After six hours, FIB demonstrated better pain control. The quality of postoperative recovery was higher in patients with fascia iliaca compartment block. PMID- 29338140 TI - Primary pyomyositis in North India: a clinical, microbiological, and outcome study. AB - BACKGROUND/AIMS: Pyomyositis is an infective condition with primary involvement of the skeletal muscles. There is sparse recent literature on patients with pyomyositis. METHODS: This study was carried out at emergency services of a tertiary care center located in subtropical area of Indian subcontinent. RESULTS: Sixty-two patients of primary pyomyositis formed the study cohort. Mean age of occurrence was 29.9 +/- 14.8 years. There were 54 men. Twelve patients had underlying medical diseases. Muscle pain was seen in all 62 patients. Forty-eight patients (77.4%) had the fever. Most common site of involvement was thigh muscles (n = 29, 46.8%). Forty-nine patients (79%) presented in the suppurative stage of illness. Patients with comorbidities were older (age: median 36 years [interquartile range (IQR), 25 to 47] vs. 24 years [IQR, 16 to 35], p = 0.024), had higher culture positivity with gram-negative organisms (8/9 [88.89%] vs. 6/29 [20.69%], p = 0.001). Importantly, higher number of these patients received inappropriate antibiotics initially. Patients with positive pus culture result had higher complication rate (32/38 [84.21%] vs. 10/18 [55.56%], p = 0.044). Six patients (9.7%) had in-hospital mortality. Lower first-day serum albumin, initial inappropriate antibiotic therapy, and advanced form of the disease at presentation were associated with increased in-hospital mortality. CONCLUSIONS: Primary pyomyositis is not an uncommon disease entity. Patients with comorbidities were more likely to receive initial inappropriate antibiotic therapy. Patients with positive pus culture report had the higher rate of complications. Lower first-day serum albumin, initial inappropriate antibiotic therapy and advanced form of the disease at presentation were associated with increased in-hospital mortality. PMID- 29338142 TI - Patient-controlled epidural analgesia with and without basal infusion using ropivacaine 0.15% and fentanyl 2gamma/mL for labor analgesia: a prospective comparative randomized trial. AB - BACKGROUND: Patient-controlled epidural analgesia (PCEA) is a common practice for labor pain relief. This study aimed to compare two different settings of a PCEA device using the same solution to obtain labor analgesia. METHODS: Fifty-two parturients were randomly allocated to receive ropivacaine 0.15% and fentanyl 2 gamma/mL via a PCEA device either as a background infusion of 5 mL/h plus 5 mL demand bolus doses with 10-minute lockout (group B/D, N.=26) or as only demand bolus doses of 5 mL with 10-minute lockout (group D, N.=26). The primary outcome was the total volume of local anesthetic administrated during labor; secondary outcomes included the analgesic efficacy and the effects on maternal and neonatal outcomes. RESULTS: No statistical difference was observed between the groups concerning demographic characteristics, duration of first and second stages of labor, administration of oxytocin and ephedrine, rescue doses, instrumental delivery, Bromage Scale, maternal side effects and satisfaction, neonatal Apgar scores and pH. The total volume of local anesthetic was greater in group B/D compared to group D (P=0.015). A statistically significant difference was detected in VAS scores only at the end of the second stage (P=0.036) and at 60 minutes from the test dose administration (P=0.022) and with group D exhibited higher pain scores than group B/D. The incidence of breakthrough pain (VAS>4) was higher in group D compared with group B/D (P=0.035). CONCLUSIONS: The addition of background infusion plus PCEA demand bolus doses increased local anesthetic consumption and reduced breakthrough pain without affecting maternal satisfaction and neonatal outcomes. PMID- 29338143 TI - Anesthesiology Resident Induction Month: a pilot study showing an effective and safe way to train novice residents through simulation. AB - BACKGROUND: The transition of new residents from medical school to the post graduate clinical environment remains challenging. We hypothesized that an introductory simulation course could improve new residents' performance in anesthesiology. METHODS: The Anesthesiology Residents Induction Month (ARIM) program was designed as a non-clinical simulation training program aiming at providing the theoretical and practical skills to safely approach, as junior anesthesiologists, the operating rooms. For each participant, specific knowledge, procedural skills and non-technical performance were assessed with a pre and post test approach, before and immediately after the participation in the study. RESULTS: Fifteen first-month residents participated in the study. As compared to pre-test, residents significantly improved in all three evaluated areas. Pre-test knowledge assessment mean improved from 56% to 73% in the post-test (P<0.001). In the procedural skills assessment, pre-test mean improved from 43% to 77% (P<0.001) and non-technical skills assessment improved from 3.17 to 4.61 (in a scale out of seven points) in the post-test (P<0.001). CONCLUSIONS: Data suggest that an intensive simulation-based program can be an effective way for first-year residents to rapidly acquire and develop basic skills specific to anesthesiology. There might be benefits to begin residency with a training program aiming at developing and standardizing technical and non-technical skills. PMID- 29338144 TI - Mortality and long-term quality of life after percutaneous tracheotomy in Intensive Care Unit: a prospective observational study. AB - BACKGROUND: Quality of life and mortality after percutaneous dilatational tracheotomy (PDT) has been poorly investigated. The aims of this study were to evaluate the independent risk factors for Intensive Care Unit (ICU) mortality and investigate quality of life over the first year after PDT in critically ill patients. METHODS: This was a prospective, single-center, cohort study performed in a tertiary care University Hospital, enrolling consecutive ICU patients requiring elective PDT, collecting data during the tracheotomy procedure and the ICU stay. Follow-up was performed at three, six and twelve months after PDT. The medical interview included the Euro Quality of Life questionnaire comprising five dimensions (mobility, self-care, usual activities, pain/discomfort, anxiety/depression). RESULTS: A total of 137 patients were included in the study. In the multivariate analysis, ICU mortality was independently associated with age (OR 1.089; P=0.003) and SAPS II (OR 1.047; P=0.003), and inversely with neurologic disease (OR 0.162; P=0.004). Mortality increased over time (ICU mortality 26.7%; in-hospital mortality 43.1%; 3-months mortality 47.4%; 6-months mortality 61.3%; and 1-year mortality 70.8%; P=0.0001). Tracheostomized patients due to respiratory disease had a higher ICU mortality (50%) compared to those with neurological disease (13.6%). quality of life (QoL) of tracheostomized patients was severely compromised at 3-months (QoL: 17, 15-19), 6-months (QoL: 17; 16-19), while moderately compromised at 1-year (QoL: 13; 9-16). A subgroup analysis showed better QoL at 3-months, 6-months and 1-year in respiratory compared to neurological tracheostomized patients (P=0.01). CONCLUSIONS: Patients baseline characteristics and indication for PDT procedure are important determinants of in-ICU mortality and QoL in tracheostomized patients. PMID- 29338145 TI - Association between Bispectral Index System and airway obstruction: an observational prospective cohort analysis during third molar extractions. AB - BACKGROUND: Sedation regimes during oral procedures frequently associated with airway obstruction. The aim of this study was to define the association of Bispectral Index (BIS) to the depth of sedation and airway obstruction events. METHODS: Forty-seven patients between 14-21 years old, who were candidates for 3rd molar teeth extraction, were enrolled in this study. Patients received a total of 4 mg midazolam, 100 microgram fentanyl followed by titrated incremental propofol in 10 mg. The Richmond Agitation Sedation Score (RASS) was used to assess the depth of sedation. Each patient was attached to BIS monitor, while clinicians were not involved in the data collection process. Apnea, airway obstruction, O2 saturation, timing and interventions for controlling the situation were recorded. All data was synchronized with BIS data monitoring. RESULTS: The results show that 97.5% of cases were ASA 1 and 2, with average age of 17.3 years (+/-1.4) and a median BMI of 26.1. By using linear regression, for every unit decrease of median RASS (less than zero), there was 1.78 decrease in mean BIS Score (P=0.045, 95% CI: 0.08-3.47). The mean BIS Index (over 1 minute) with airway obstruction was 64 (+/-10.2), which was significantly lower than the BIS during non-airway obstruction (77+/-11.6), (P<0.001). By using logistic regression analysis, for every on unit increase in BIS Index, there is 24% decrease in odds in having airway obstruction (P=0.0009, 95% CI: 0.65-8.94). CONCLUSIONS: This study demonstrates that the BIS could potentially be a valid continuous monitoring method to avoid airway obstruction during sedation for patients undergoing dental surgery. PMID- 29338146 TI - The effect of various doses of infusion solutions on the endothelial glycocalyx layer in laparoscopic cholecystectomy patients. AB - BACKGROUND: The endothelial glycocalyx is located on the luminal side of blood vessels and maintains vessel integrity. This study analysed how various dosages of infusion affected the secretion of atrial natriuretic peptide (ANP) and potential glycocalyx damage in patients undergoing laparoscopic cholecystectomy. We hypothesised that the liberal administration of Ringer's solution during the operation can cause iatrogenic hypervolemia with releasing of ANP and glycocalyx damage. METHODS: The study included 90 patients with American Society of Anesthesiologists' (ASA) class I and II, in good cardiopulmonary health, who were assigned to one of three groups: Restrictive group, which received 1 mL/kg/hr intraoperatively and six hours postoperatively; Low liberal group, which received 5 mL/kg/hr of Ringer's solution intraoperatively and six hours postoperatively and High liberal group, which received 15 mL/kg/hr intraoperatively and 10 mL/kg/hr six hours postoperatively. We measured patients' concentrations of glycocalyx constituents, ANP, markers of kidney and liver function, C-reactive protein (CRP), and albumine at three time points. We also measured noinvasive hemodynamics, the correlation between ANP secretion and the concentration of glycocalyx components. RESULTS: We found a significantly higher concentrations of hyaluronic acid and syndecan-1 and more ANP secretion in the High liberal group than in the other groups. We also observed a positive correlation between ANP secretion and glycocalyx constituent concentration. Markers of kidney and liver function were normal, suggesting preservation of splanchnic perfusion and global hemodynamics. CONCLUSIONS: Measuring the endothelial glycocalyx constituents in circulating blood could be a marker of intraoperative volume overload during laparoscopic operations. PMID- 29338147 TI - Effect of therapeutic hypothermia on survival and neurological outcome in adults suffering cardiac arrest: a systematic review and meta-analysis. AB - INTRODUCTION: The aim of this review was to determine current evidence for the effect of therapeutic hypothermia (TH) on survival and neurological outcome in adults suffering cardiac arrest (CA). EVIDENCE AQUISITION: We searched the Cochrane Controlled Trials Register, MEDLINE, EMBASE and NLM databases from 2000 to 2017 using the following terms: hypothermia, cooling, therapeutic, cardiac arrest, resuscitation, cardiopulmonary, CPR. Studies were eligible if they compared TH versus normothermic management in adult humans sustaining CA. Randomized controlled trials (RCT), pilot studies and observational trials were included. EVIDENCE SYNTHESIS: Ten studies involving 3259 patients were included in meta-analysis. Pooling all eligible studies showed a favorable effect for TH on survival and neurological recovery. However, sensitivity analysis for RCTs showed no benefit on either outcome, while observational trials showed benefit for neurological recovery with just marginally significant benefit regarding survival. Studies including patients with shockable rhythms demonstrated benefit for both outcome measures, while those including patients with any rhythms demonstrated benefit for neurological recovery but not for survival. TH did not benefit patients with non-shockable rhythms. Trials using external cooling favored TH regarding survival and neurological outcome but those using systemic cooling with or without external cooling did not show such benefit. When the overall incidence of complications was pooled, there was a statistically significant shift in odds ratio favoring normothermic management over TH. CONCLUSIONS: Evidence from RCTs suggests TH does not improve survival or neurological outcome, while observational trials favor TH over normothermia. TH may be attended with higher risk for complications. PMID- 29338148 TI - Novel applications of bedside monitoring to plumb patient hemodynamic state and response to therapy. AB - Hemodynamic monitoring is essential during the treatment of the critically ill in order to address the hemodynamic alterations and assess the response to treatment. Traditionally classified causes of shock and underlying pathophysiological mechanisms are often neglected by resuscitative strategies included in the guidelines. Most of hemodynamic management focuses on the ability to early recognize patients susceptible to increase cardiac output (CO) and mean arterial pressure (MAP) after a defined fluid challenge by eliciting Starling's law of the heart, and less is known of the ones presenting in shock and not volume responsive. All this influences the application of hemodynamic monitoring tools and their interpretation. Functional hemodynamic monitoring strategies, aiming to overcome limitations of traditional static pressures measurements, have been developed and recently acknowledged by guidelines for the treatment of septic shock. Nevertheless, those techniques share the same limitations of previous ones, being poorly reliable in various common situations such as in spontaneous breathing patients, right ventricular dysfunction of several causes or if arrhythmia occurs. Echocardiography has now become commonplace in the evaluation of the hemodynamic profile in the critically ill and mastering this technique is important in order to interpret pathophysiological patterns behind hemodynamic alteration while at the same time, screening for unexpected findings. More recently, pathophysiological and echocardiographic-based approaches have been introduced to investigate ventriculo-arterial coupling, the relationship between both left and right heart and the relative circulatory bed. Such techniques allowed establishing that in many critically ill scenarios, coupling between the heart and the circulation is inefficient and probably that is the reason why in this case hemodynamic restoration cannot be achieved by standard approaches. Combining echocardiography to better understand and treat in real time pathophysiological determinants of altered hemodynamic states with functional approaches seems to be the key to plumb hemodynamic states although it remains to be demonstrated if this tailored approach will improve patient outcome. PMID- 29338149 TI - Injection pressure mapping of intraneural vs. perineural injections: further lessons from cadaveric studies. AB - BACKGROUND: The aim of the study was to investigate the difference between intraneural and perineural injection pressures in human cadavers. Targeted nerves included the cervical roots, the supraclavicular and infraclavicular brachial plexus, the sciatic-subgluteal nerve and the common peroneal and tibial nerves. METHODS: Ten readings were obtained for each nerve location. Over ten seconds, 1 mL of 0.9% NaCl was injected - deliberately slower than in clinical practice to eliminate the risk of aberrant readings relating to the speed of injection. Perineural injections occurred at least 1 mm outside the epineurium. After pressure recordings were completed 0.1mL of dye was injected, and dissection performed to confirm needle placement. Ultrasound and dissection images were matched with light microscopy pictures for all locations. RESULTS: The average pressure for intraneural injections was 24.1+/-5.7 psi and 6.1+/-2.1 psi for perinereural. The average injection pressure generated for the cervical trunk, supraclavicular, infraclavicular, sciatic subgluteal, peroneal and tibial nerves respectively were 31.2+/-6.0 psi, 24+/-15.0 psi, 23.4+/-9.5 psi, 22.6+/-8.8 psi 19.7+/-6 psi, 17+/-7.3 psi intraneurally and 6.1+/-2.0 psi, 9.1+/-5.5 psi, 10+/ 4.9 psi, 6+/-2.4 psi, 6+/-2.4 psi and 7+/-2.5 psi perineurally. For intraneural injections statistically significant differences were demonstrated between the peroneal and tibial nerves compared to cervical roots/trunks/division/cords of brachial plexus. CONCLUSIONS: The study has consistently demonstrated statistically significant differences between intraneural and perineural injection pressures. It effectively created a "map" of intraneural injection pressures for the most common peripheral nerves blocks and demonstrated a pattern between proximal and distal locations. The study also revealed limitations of either techniques, ultrasound and injection pressure monitoring reinforcing the concept of their simultaneous application. PMID- 29338150 TI - The role of cannabinoids in pain control: the good, the bad, and the ugly. AB - Cannabinoids appear to possess many potential medical uses, which may extend to pain control. A narrative review of the literature has found a variety of studies testing botanical and synthetic cannabinoids in different pain syndromes (acute pain, cancer pain, chronic noncancer pain, fibromyalgia pain, migraine, neuropathic pain, visceral pain, and others). Results from these studies are mixed; cannabinoids appear to be most effective in controlling neuropathic pain, allodynia, medication-rebound headache, and chronic noncancer pain, but do not seem to offer any advantage over nonopioid analgesics for acute pain. Cannabinoids seem to work no better than placebo for visceral pain and conferred only modest analgesic effect in cancer pain. Cannabinoids do many good things - they appear to be effective in treating certain types of pain without the issues of tolerance associated with opioids. Negatively, marijuana currently has a very murky legal status all over the world - laws regulating its use are inconsistent and in flux. Thus, both patients and prescribers may be unsure about whether or not it is an appropriate form of pain control. Cannabinoid-based analgesia has been linked to potential memory deficits and cognitive impairment. A great deal more remains to be elucidated about cannabinoids which may emerge to play an important role in the treatment of neuropathic and possibly other painful conditions. There remains a great deal more to learn about the role of cannabinoids in pain management. PMID- 29338151 TI - Oral prolonged-release oxycodone/naloxone offers equivalent analgesia to intravenous morphine patient-controlled analgesia after total knee replacement. A randomized controlled trial. AB - BACKGROUND: The purpose of this study was to determine whether oral prolonged release oxycodone-naloxone combination (OXN) could provide equivalent analgesia and a side-effect profile similar to intravenous morphine patient-controlled analgesia (IVPCA) for the control of pain in the immediate postoperative period after total knee replacement (TKR). METHODS: All patients received a sciatic nerve block with 0.3% ropivacaine 15 mL, femoral nerve block with 0.5% ropivacaine 20 mL, spinal anesthesia and postoperative continuous femoral nerve infusion (ropivacaine 0.2% 4 mL/h). After surgery, patients were randomly allocated to receive either 10 +10 +5 mg controlled release OXN oral administration 12 hourly or IVPCA with morphine (2 mg bolus, no basal infusion). The primary outcome was the average rest and dynamic pain for the first 48 h postoperatively. Secondary outcomes were: post operative nausea vomiting (PONV) and the total morphine consumption. RESULTS: OXN group experienced better pain control at rest during the first (0.89+/-1.54 vs. 1.27+/-1.82, P=0.0019) and second (1.03+/-1.69 vs. 1.65+/-2.05, P=0.0006) postoperative period. There was no statistically significant difference in pain score during movement between the two groups. The secondary outcome measures showed no significant differences in the total morphine consumption (12.04+/-1.1 vs. 11.46+/-3.7 mg, P=0.20) or PONV (0.6+/-0.8 vs. 0.8+/-1.0, P=0.40). CONCLUSIONS: This study show that in the immediate postoperative period after TKR, the patients receiving oral prolonged release OXN experienced the same to better pain control than those receiving morphine IVPCA, with a similar degree of PONV. PMID- 29338152 TI - Generation and Characterization of Siglec-F-Specific Monoclonal Antibodies. AB - Siglec-F (SF) is a surface glycoprotein expressed by mouse eosinophils and induces caspase- and mitochondria-dependent apoptosis after engagement with its cognate ligand or specific antibodies. This targeting eosinophils by monoclonal antibodies may help diverse diseases associated with increased frequency of eosinophils including allergy and asthma. In this paper, production of murine and rat monoclonal antibodies (mAbs) against Siglec-F has been addressed. Balb/c mice were immunized with siglec-F1 (SF1) and siglec-F2 (SF2) synthetic peptides conjugated to a carrier protein. Rats were immunized with Chinese hamster ovary CHO cells overexpressing Siglec-F (CHO-SF) or with Siglec-F-human immunoglobulin FC fusion protein (CHO-SF-Ig). Hybridomas were produced by standard protocol and screened for their reactivity by enzyme-linked immunosorbent assay (ELISA), western blotting (WB), and flow cytometry. In parallel, polyclonal antibodies were generated in New Zealand White rabbits immunized with SF1 and SF2 peptides. Three mouse and three rat mAbs were generated against synthetic peptides and SF Ig, respectively. All mouse monoclonal and rabbit polyclonal antibodies reacted well with immunizing molecules in ELISA and detected specific band of Siglec-F in WB. However, they failed to detect native molecule in flow cytometry analysis. Quite the contrary, rat mAbs did not reacted with the denatured protein in WB, instead exhibited significant reactivity with CHO-SF cells in flow cytometry. Based on the heavily glycosylated nature of Siglec-F, it seems that generation of anti-SF antibodies able to detect native protein needs a properly folded molecule for immunization. Monoclonal antibodies reported here are invaluable tools for studying linear and conformation epitopes of SF and tracing mouse eosinophils. PMID- 29338153 TI - Association Study of CD226 and CD247 Genes Single Nucleotide Polymorphisms in Iranian Patients with Systemic Sclerosis. AB - CD247 and CD226 play important roles in signaling of lymphocytes. Single nucleotide polymorphisms (SNPs) of genes encoding CD247 and CD226 have been associated with the risk of several autoimmune disorders. This study aimed to evaluate the possible association between CD226 and CD247 genes SNPs and risk of systemic sclerosis (SSc) in Iranian population. Study participants were 455 SSc patients and 455 age, sex and ethnic -matched healthy individuals. Genotyping of rs2056626 and rs763361 at CD247 and CD226 genes, respectively, was carried out using TaqMan MGB-based allelic discrimination real-time PCR. Neither alleles nor genotypes of both SNPs showed significant association with the risk of SSc. Furthermore, association analysis of the genotypes with clinical manifestations of the disease revealed that rs763361 variants were associated with the forced vital capacity (FVC) in SSc patients. Our results suggest that genetic variants of CD226 and CD247 genes may not be a contributing factor in pathogenesis of SSc in Iranian population. PMID- 29338154 TI - Characteristics, Etiology and Treatment of Pediatric and Adult Anaphylaxis in Iran. AB - Despite the increasing prevalence of anaphylaxis, there is little information about the characteristics and practice of healthcare providers in treating anaphylaxis, so this study was conducted to record the characteristics and therapeutic approaches of anaphylaxis from May 2012 until April 2015, the data of all patients diagnosed with anaphylaxis in the Allergy department of three referral university hospitals in Tehran, Iran were recorded. Thereafter, the demographics, clinical features, triggers and therapeutic approach were evaluated. This study investigated 136 individuals, 64 males (47%) between 6 months and 68 years old, as well as 72 others (52.94%) under 18 years of age (pediatric). The following were the most common organs involved: Skin 86.02% (pediatric 91.66% vs adult 79.68%), respiratory tract 51.47% (pediatric 43.05% vs adult 60.93%), cardiovascular 50.73% (pediatric 54.16% vs adult 46.87%), gastrointestinal 20.58% (pediatric 27.7% vs adult 12.5% ) and neurologic system 5.88% (only in adults). The following were the most identified causing foods 69 (50.37%)[42 pediatric (children) and 27 adults], drugs 34( 25%)[14 pediatric and 20 adults], idiopathic 16( 11.77%)[3 pediatric and 13 adults], insect sting 7( 5.15%)[3 pediatric and 4 adults] , exercise 6( 4.42%) [1 pediatric and 5 adults]. Milk, egg and wheat were the most common causative foods in pediatric cases but sesame, as well as egg and milk were the most common causes in adults. Epinephrine injection, auto injector epinephrine prescription as a discharging plan and referral to an allergist were: 10.78, 1.96 and 7.8 %, respectively. In this case series we found that, cutaneous, respiratory, cardiovascular and gastrointestinal complains were the most common manifestations and food, drug and idiopathic were the most common causes.In this study, the diagnosis of anaphylaxis, epinephrine subscription and referral to an allergist were significantly lower in comparison to other studies. PMID- 29338155 TI - Association between Caregiver Exposure to Toxics during Pregnancy and Childhood onset Asthma: A Case-control Study. AB - The aim of this study was to evaluate the associations between caregiver-reported use of medications, alcohol, cigarette and/or waterpipe (WP), and exposure to pesticides/detergents during pregnancy with childhood-onset asthma. The study design consisted of a case-control study, conducted between December 2015 and April 2016, recruited 1503 children, aged between 3-16 years old. A questionnaire assessed the sociodemographic characteristics (age, gender, education level of both parents), the family history of asthma, and other known risk factors of asthma (heating system at home, child history of recurrent otitis, humidity in the house, child went to a daycare, smoking and drinking alcohol during pregnancy, exposure to pesticides and detergents). The multivariate analysis showed that children living in North and South Lebanon and the children living in areas where pesticides are frequently used had an increased risk of asthma (ORa=1.625, CI 1.034-2.554, p=0.035, ORa=13.65, CI 3.698-50.385; p<0.001 and ORa=3.307, CI 1.848-5.918, p<0.001 respectively). Smoking WP during pregnancy and cigarette during lactation would increase the risk of asthma in children (ORa=6.11; CI 1.244-30.008; p=0.026 and ORa=3.44; CI 1.024-11.554; p=0.046 respectively). We conclude that asthma may originate from the environmental exposure to toxics such as pesticides and tobacco (cigarettes and WP) or to alcohol and prescribed medications during pregnancy and lactation. Spreading awareness by health professionals about these preventable causes can help educate the parents and children to prevent asthma and its exacerbation. PMID- 29338156 TI - Attenuating Effect of Long-term Culture of Umbilical Cord Vein Mesenchymal Stromal Cells on Pulmonary Fibrosis in C57BL/6 Mice. AB - In recent studies, mesenchymal stromal cells (MSCs) have been increasingly employed to treat various diseases like pulmonary fibrosis (PF). There are very few MSCs in tissues so in order to obtain their sufficient numbers for therapeutic applications, their in vitro expansion is necessary. The aim of this study was to investigate the effects of long-term culture of the human umbilical cord vein MSCs (hUCV-MSCs) on pulmonary fibrosis in mice. MSCs were first isolated from human umbilical cord vein and cultured up to 18 passages. In C57BL/6 mice, 15 min after belomycin instillation, UCV-MSCs at passages (P) 0, 4, 8, 12, and 18 (long-term culture) were transplanted intratracheally. Mice were weighted every 5 days and were euthanized on day 21. For histopathological examination, the lung sections were stained with hematoxylin-eosin (HE) and Masson's trichrome. The mRNA expression of TGF-beta1, alpha-smooth muscle actin (alpha-SMA), and collagen type I alpha 1 (COL1A1) in lung tissues were assessed using RT-PCR. For cell tracking, human cytochrome B DNA was detected in mice lung tissues by PCR. The weight of mice receiving long-term culture of UCV-MSCs increased compared to other mice (p=0.056). Also, transplantation of UCV-MSCs at P18 led to increased alveolar space and decreased connective tissue and collagen deposition of the lung tissues. The mRNA expression of TGF-beta1, alpha-SMA, and COL1A1 also decreased in this group. The results showed that intratracheally transplanted long-term culture of the UCV-MSCs attenuated lung fibrosis in mice. PMID- 29338157 TI - Imbalance of Th17/Treg in the Pathogenesis of Mice with Paraquat-induced Acute Lung Injury. AB - Recent studies suggest that imbalances in the ratios of CD4+ T helper cell subsets, T helper-17 (Th17) and regulatory T (Treg) cells play a crucial role in the pathogenesis of acute lung injury (ALI). However, studies of the imbalance of Th17/Treg in paraquat (PQ)-induced ALI have not been reported. Therefore, we investigated whether the ratio of Th17/Treg cells in a mouse model of PQ-induced ALI contributes to pathogenesis of ALI. Male Kunming mice were randomly treated with saline (control group) or PQ (PQ-poisoned (PQP) group); mice were sacrificed at either 12 hours (PQP-12h) or 24 hours (PQP-24h and control) post-treatment. Hematoxylin-eosin and TUNEL staining procedures were performed to examine inflammation and apoptosis. The presence of Th17 and Treg cells was measured by flow cytometry; the expression of putative Th17 cytokines and transcription factors was measured by ELISA and western blot analysis. Compared with control mice, lung inflammation and apoptosis were dramatically increased in PQP mice at 12 and 24 hours after poisoning. In addition, poisoned mice displayed significant increases in the presence of CD4+IL-17+ T cells (Th17) and in the expression of IL-17A and IL-17, as measured by flow cytometry and western blot assays. This increase was most notable after 24 hours of PQ exposure. Furthermore, poisoned mice displayed marked decreases in the presence of CD4+CD25+Foxp3+ T cells (Treg) and in the expression of IL-35 and the transcription factor Foxp3. These results suggest that an imbalanced ratio of Th17/Treg cells may contribute to the pathogenesis of PQ-induced ALI. PMID- 29338158 TI - Studying the Serum as Well as Serous Level of IL-17 and IL-23 in Patients with Serous Otitis Media. AB - Serous otitis media with effusion (OME) is a middle ear inflammatory response to allergens and microbes which stimulate leukocytes to produce different inflammatory mediators after obstruction of Eustachian tube. Here, we investigated the levels of these mediators, IL-17 and IL-23, in serum and middle ear fluids of children with OME. 75 patients with otitis media and 75 age and sex matched healthy controls were enrolled in this study. IL-17 and IL-23 levels in serous secretion of the patients and their serum levels were measured in both groups by ELISA. Serum IL-17 levels were significantly higher in the patients than controls (p=0.001). There was no significant difference between serum IL-23 levels in patients and controls. Patients' serous levels of both cytokines of IL 17 and IL-23 were higher than those in serum according to different parameters of sex, age, and duration of the disease. This study shows an elevated presence of IL-17 and IL-23, as pro inflammatory cytokines, in OME. These finding may represent the contribution of such cytokines in the pathogenesis of OME. Blocking such molecules may yield new non-surgical therapeutics. PMID- 29338159 TI - Ovariectomy Modifies TH2, and TH17 Balance in BALB/C Allergic Mice. AB - Asthma is a chronic inflammation of the airways affecting over 300 million people worldwide. As in the autoimmune diseases, it is well described that women are the most affected by asthma. The higher number of women presenting this pathology suggests the involvement of female sex hormones in the construction of the allergic immune response. Female Balb / c mice were used for the experiments. Thirty-eight animals were separated into four groups: OVX-Ova; Sham-Ova; OVX-Sal; Sham-Sal. Then animals underwent acute allergic induction protocol by Ovalbulmin (OVA). Ovariectomized animals showed greater number of leukocytes in bronchoalveolar lavage (BAL) and elevated white blood cells recruitment to the lung environment observed by histological analysis. There was a significant increase of eosinophils and mast cells in inflammatory sites at pulmonary tissue. The relative uterine and body weight were lower in ovariectomized animals and higher in Sham mice, respectively. Moreover, the lack of the sex hormones induced an increase in interleukin (IL)-4 and titers of immunoglobulin G1 (IgG1) antibodies. However, increased production of IL-17A was only observed in Sham animals. Altogether, data this study suggest that ovariectomy induces the formation of a stronger Th2 response in allergic animal. However, the immune processes involved in the allergic response in females currently remain unclear. PMID- 29338160 TI - Higher Activities of Hepatic Versus Splenic CD8+ T Cells in Responses to Adoptive T Cell Therapy and Vaccination of B6 Mice with MHC Class-1 Binding Antigen. AB - The liver has unique microenvironment which is known to induce tolerance of cytolytic CD8+ T cells to hepatic and extra hepatic antigens, resulting in persistence of infection of the liver by the hepatitis B and C viruses. However, under some conditions, functional immune responses can be elicited in the liver in particular to show preferential retention of activated CD8+ T cells. It is not clear whether this retention depends on the type of the exogenous immunostimulatory or the endogenous innate immune cells. The T cell receptor (TCR) transgenic OT-1 (CD8+) mouse model was used in which OT-1 cells were harvested from the spleen of the donor and transferred into recipient mice followed by immunization with OVA peptide followed by injection of GM-CSF, CCL21 chemokine, or cytokines (IL-2, IL-12, or IL-15), or the toll-like receptor 3 agonist poly(I:C). Co-administration of any of these immunostimulatory agents relatively augmented the retention of CD8+ T cells with different levels of effects. Compared to spleen, the Ag-specific CD8+ T cells in the liver showed higher activities including expansion, proliferation, apoptosis and memory responses as well as cytolytic function. While depletion of natural killer cells significantly decreased the hepatic retention of the antigen-specific T cells, depletion of Kupffer cells showed opposite effect. Taken together, the antigen reactive T cells in the liver have higher activities than their counterparts in the peripheral tissues such as spleen. These data have important clinical implications for designing immunotherapeutic protocols toward the liver diseases. PMID- 29338161 TI - Effect of Periodontal Treatment on the Crevicular Level of High-mobility Group Box 1 and Soluble Triggering Receptor Expressed on Myeloid Cells 1 in Patients with Chronic Periodontitis. AB - The present study aimed to compare the levels of high-mobility group box 1(HMGB1) and soluble triggering receptor expressed on myeloid cells (sTREM1) in the gingival crevicular fluid (GCF). This cross-sectional cohort trial investigated two groups of 22 eligible chronic periodontitis and 22 periodontally healthy individuals (student volunteers) both before and after the periodontal treatment. GCF was collected from the deepest pockets with clinical attachment loss>=3 mm. Both groups received oral hygiene instructions, and scaling and root planning were performed in the test group. Enzyme-linked immunosorbent assay kit (ELISA) was used to measure the levels of HMGB1 and sTREM1 in GCF samples collected before and 1 month after non-surgical periodontal treatment. The results showed that HMGB1 levels were significantly higher in the chronic periodontitis patients than those of the healthy individuals before treatment (p<0.02) and decreased significantly after periodontal treatment, which reduced gingival inflammation. Furthermore, the levels of sTREM1 marker were significantly higher in periodontitis patients before (p<0.001) and 1 month after treatment than in healthy individuals (p<0.003) although its crevicular levels decreased after periodontal therapy in periodontitis group. The higher levels of sTREM1 and HMGB1 cytokines in GCF of periodontitis patients and the significant decrease after the introduction of the periodontal treatment underlines the importance of HMGB1 and sTREM1 in pathogenesis of periodontitis. PMID- 29338162 TI - Endobronchial Lesion in Eosinophilic Granulomatosis with Polyangiitis. AB - Eosinophilic granulomatosis with polyangiitis is a systemic vasculitis. It could affect respiratory system, kidney, and central nervous system frequently; however, all body organs could be involved. Asthma and eosinophilic pneumonia are predominant manifestations in respiratory system. Bronchoalveolar lavage or lung biopsy may be used for diagnosis, but endobronchial lesion is not considered as a manifestation of eosinophilic granulomatosis with polyangiitis. Here we present a case of eosinophilic granulomatosis with polyangiitis with unusual endobronchial lesion which was confirmed by endobronchial biopsy. PMID- 29338163 TI - Kounis Syndrome Induced by Oral Intake of Diclofenac Potassium. AB - An acute coronary syndrome (ACS) occurring during the course of an allergic reaction is called Kounis syndrome (KS). The second case of KS induced by diclofenac potassium (DP) is presented in this report. A 67-year-old man was brought to our emergency department with the possible diagnosis of anaphylactic shock by the ambulance staff. It emerged that widespread erythema and pruritus developed after taking DP. Then, he lost consciousness. Diffuse urticarial lesions were detected on physical examination at the emergency department. He complained of chest pain during his observation, and progressive ST segment elevation was seen in the inferior leads on serial electrocardiograms. His coronary angiography showed 100% occlusion of the right coronary artery. Then, KS was diagnosed. The patient was discharged on the second day, and he was doing well on the control visit 2 weeks later. All allergic reactions may trigger an ACS so physicians should be aware of KS and always keep that unique clinical entity in mind to recognize it promptly and direct the therapy at suppressing the allergic reaction and improving the coronary circulation simultaneously when encountering a patient with symptoms suggesting an allergic reaction and a concomitant ACS. PMID- 29338164 TI - The relation between nonspecific hyperreactivity of the airways and atopic constitution in asthmatics. AB - Background/Aim: Hyperreactivity of the airways caused by inflammation in asthmatics is the most important pathophysiological change. It represents a suitable ground that in the presence of risk factors and the drivers of asthma, asthmatic attack occurs. Atopic constitution is one of the most important risk factors for the development and expression of asthma. The aim of our study was to investigate the relationship between nonspecific airway hyperreactivity and atopic constituton in asthmatics. Methods: This retrospective analysis was conducted considering the results of nonspecific bronchoprovocative test with histamine, skin tests to inhalant allergens and total IgE levels in the serum of asthmatic patients with controlled bronchial asthma. The sample consisted of 162 asthmatics examined during one-year period. Results: The examinees were male asthmatic patients, aged between 18 and 30 years. We found that the examinees with a pronounced non-specific hyperreactivity had more significant skin reaction to inhaled allergens and higher levels of total IgE in serum. Conclusion: The results of our study show that the intensity of airway hyperresponsiveness to histamine in asthmatics is directly related to atopic constitution. PMID- 29338165 TI - How Ligands Affect Resistive Switching in Solution-Processed HfO2 Nanoparticle Assemblies. AB - Advancement of resistive random access memory (ReRAM) requires fully understanding the various complex, defect-mediated transport mechanisms to further improve performance. Although thin-film oxide materials have been extensively studied, the switching properties of nanoparticle assemblies remain underexplored due to difficulties in fabricating ordered structures. Here, we employ a simple flow coating method for the facile deposition of highly ordered HfO2 nanoparticle nanoribbon assemblies. The resistive switching character of nanoribbons was determined to correlate directly with the organic capping layer length of their constituting HfO2 nanoparticles, using oleic acid, dodecanoic acid, and undecenoic acid as model nanoparticle ligands. Through a systematic comparison of the forming process, operating set/reset voltages, and resistance states, we demonstrate a tunable resistive switching response by varying the ligand type, thus providing a base correlation for solution-processed ReRAM device fabrication. PMID- 29338166 TI - Remarkable Effect of Sodium Alginate Aqueous Binder on Anatase TiO2 as High Performance Anode in Sodium Ion Batteries. AB - Sodium alginate (SA) is investigated as the aqueous binder to fabricate high performance, low-cost, environmentally friendly, and durable TiO2 anodes in sodium-ion batteries (SIBs) for the first time. Compared to the conventional polyvinylidene difluoride (PVDF) binder, electrodes using SA as the binder exhibit significant promotion of electrochemical performances. The initial Coulombic efficiency is as high as 62% at 0.1 C. A remarkable capacity of 180 mAh g-1 is achieved with no decay after 500 cycles at 1 C. Even at 10 C (3.4 A g-1), it remains 82 mAh g-1 after 3600 cycles with approximate 100% Coulombic efficiency. TiO2 electrodes with SA binder display less electrolyte decomposition, fewer side reactions, high electrochemistry reaction activity, effective suppression of polarization, and good electrode morphology, which is ascribed to the rich carboxylic groups, high Young's modulus, and good electrochemical stability of SA binder. PMID- 29338167 TI - Nitrogen-Doped Perovskite as a Bifunctional Cathode Catalyst for Rechargeable Lithium-Oxygen Batteries. AB - In this work, nitrogen-doped LaNiO3 perovskite was prepared and studied, for the first time, as a bifunctional electrocatalyst for oxygen cathode in a rechargeable lithium-oxygen battery. N doping was found to significantly increase the Ni3+ contents and oxygen vacancies on the bulk surface of the perovskite, which helped to promote the oxygen reduction reaction and oxygen evolution reaction of the cathode and, therefore, enabled reversible Li2O2 formation and decomposition on the cathode surface. As a result, the oxygen cathodes loaded with N-doped LaNiO3 catalyst showed an improved electrochemical performance in terms of discharge capacity and cycling stability to promise practical Li-O2 batteries. PMID- 29338168 TI - Nanocapsules of Magnetic Au Self-Assembly for DNA Migration and Secondary Self Assembly. AB - To endow valuable responsiveness to self-assemblies of Au nanoparticles (Au NPs), the magnetic Au nanoparticles (Au NPs)/C16H33(CH3)3N+[CeCl3Br]- (CTACe) mixtures were first prepared by using an emulsion self-assembly of a magnetic surfactant, C16H33(CH3)3N+[CeCl3Br]-. A versatile morphology of self-assemblies of Au NPs could be controlled by the counterions in surfactants including [CeCl3Br]-, [FeCl3Br]-, and Br- as well as solvent. In particular, the magnetic counterion, [CeCl3Br]-, can induce self-growth of Au NPs in an emulsion self-assembly process due to the oxidability of [CeCl3Br]-. It enhances the rigidity of Au NPs/CTACe scaffolds template compared with Au NPs/hexadecyltrimethylammonium bromide. [CeCl3Br]- engaged Au NPs/CTACe with fascinating capability of conglutination and targeted migration of DNA (150 MUmol/L) under a magnet field. The conglutination capability of the DNA molecules can increase to 39.8% by adopting the magnetic strategy when using Au NPs/CTACe as a magnetic booster. Au NPs/CTACe mixtures can ideally self-assemble to be scaffolds, providing abundant conjugation sites of surface charges. Magnetic Au NPs/CTACe can serve as a template scaffold to secondary self-assemble with DNA (40 mmol/L) outside, producing smooth-faced and hollow DNA nanocapsules. We believe that the creative Au NPs/CTACe/DNA nanocapsules will extend the biological application field of Au NPs assemblies. PMID- 29338169 TI - Highly Efficient Soluble Blue Delayed Fluorescent and Hyperfluorescent Organic Light-Emitting Diodes by Host Engineering. AB - Solution-processed high-efficiency fluorescent organic light-emitting diodes with an external quantum efficiency over 18% were developed by engineering a host material and device structure designed for solution process. A high triplet energy host material designed for the solution process, (oxybis(3-(tert-butyl) 6,1-phenylene))bis(diphenylphosphine oxide) (DPOBBPE), worked efficiently as the host of blue fluorescent devices because of good solubility, high photoluminescence quantum yield, and good film properties. The DPOBBPE host enabled a high external quantum efficiency of 18.8% in the fluorescent organic light-emitting diodes by the solution process. Moreover, 25.8% external quantum efficiency in the soluble blue thermally activated delayed fluorescent devices was also realized. The 25.8% external quantum efficiency of the DPOBBPE delayed fluorescent device and 18.8% external quantum efficiency of the fluorescent device are the highest efficiency values achieved in the solution-processed blue fluorescent organic light-emitting diodes. Moreover, the solution-processed fluorescent device showed an improved blue color coordinate of (0.14, 0.20) compared to (0.17, 0.31) of the delayed fluorescent device. PMID- 29338170 TI - PEALD of SiO2 and Al2O3 Thin Films on Polypropylene: Investigations of the Film Growth at the Interface, Stress, and Gas Barrier Properties of Dyads. AB - A study on the plasma-enhanced atomic layer deposition of amorphous inorganic oxides SiO2 and Al2O3 on polypropylene (PP) was carried out with respect to growth taking place at the interface of the polymer substrate and the thin film employing in situ quartz-crystal microbalance (QCM) experiments. A model layer of spin-coated PP (scPP) was deposited on QCM crystals prior to depositions to allow a transfer of findings from QCM studies to industrially applied PP foil. The influence of precursor choice (trimethylaluminum (TMA) vs [3 (dimethylamino)propyl]-dimethyl aluminum (DMAD)) and of plasma pretreatment on the monitored QCM response was investigated. Furthermore, dyads of SiO2/Al2O3, using different Al precursors for the Al2O3 thin-film deposition, were investigated regarding their barrier performance. Although the growth of SiO2 and Al2O3 from TMA on scPP is significantly hindered if no oxygen plasma pretreatment is applied to the scPP prior to depositions, the DMAD process was found to yield comparable Al2O3 growth directly on scPP similar to that found on a bare QCM crystal. From this, the interface formed between the Al2O3 and the PP substrate is suggested to be different for the two precursors TMA and DMAD due to different growth modes. Furthermore, the residual stress of the thin films influences the barrier properties of SiO2/Al2O3 dyads. Dyads composed of 5 nm Al2O3 (DMAD) + 5 nm SiO2 exhibit an oxygen transmission rate (OTR) of 57.4 cm3 m-2 day-1, which correlates with a barrier improvement factor of 24 against 5 when Al2O3 from TMA is applied. PMID- 29338171 TI - Flexible Capacitive Piezoelectric Sensor with Vertically Aligned Ultralong GaN Wires. AB - We report a simple and scalable fabrication process of flexible capacitive piezoelectric sensors using vertically aligned gallium nitride (GaN) wires as well as their physical principles of operation. The as-grown N-polar GaN wires obtained by self-catalyst metal-organic vapor phase epitaxy are embedded into a polydimethylsiloxane (PDMS) matrix and directly peeled off from the sapphire substrate before metallic electrode contacting. This geometry provides an efficient control of the wire orientation and an additive contribution of the individual piezoelectric signals. The device output voltage and efficiency are studied by finite element calculations for compression mechanical loading as a function of the wire geometrical growth parameters (length and density). We demonstrate that the voltage output level and sensitivity increases as a function of the wire length and that a conical shape is not mandatory for potential generation as it was the case for horizontally assembled devices. The optimal design to improve the overall device response is also optimized in terms of wire positioning inside PDMS, wire density, and total device thickness. Following the results of these calculations, we have fabricated experimental devices exhibiting outputs of several volts with a very good reliability under cyclic mechanical excitation. PMID- 29338172 TI - Activation of Nrf2 and Hypoxic Adaptive Response Contribute to Neuroprotection Elicited by Phenylhydroxamic Acid Selective HDAC6 Inhibitors. AB - Activation of HIF-1alpha and Nrf2 is a primary component of cellular response to oxidative stress, and activation of HIF-1alpha and Nrf2 provides neuroprotection in models of neurodegenerative disorders, including ischemic stroke, Alzheimer's and Parkinson's diseases. Screening a library of CNS-targeted drugs using novel reporters for HIF-1alpha and Nrf2 elevation in neuronal cells revealed histone deacetylase (HDAC) inhibitors as potential activators of these pathways. We report the identification of phenylhydroxamates as single agents exhibiting tripartite inhibition of HDAC6, inhibition of HIF-1 prolyl hydroxylase (PHD), and activation of Nrf2. Two superior tripartite agents, ING-6 and ING-66, showed neuroprotection against various cellular insults, associated with stabilization of both Nrf2 and HIF-1, and expression of their respective target genes in vitro and in vivo. Discovery of the innate ability of phenylhydroxamate HDAC inhibitors to activate Nrf2 and HIF provides a novel route to multifunctional neuroprotective agents and cautions against HDAC6 selective inhibitors as chemical probes of specific HDAC isoform function. PMID- 29338173 TI - Smartphone-Based VOC Sensor Using Colorimetric Polydiacetylenes. AB - Owing to a unique colorimetric (typically blue-to-red) feature upon environmental stimulation, polydiacetylenes (PDAs) have been actively employed in chemosensor systems. We developed a highly accurate and simple volatile organic compound (VOC) sensor system that can be operated using a conventional smartphone. The procedure begins with forming an array of four different PDAs on conventional paper using inkjet printing of four corresponding diacetylenes followed by photopolymerization. A database of color changes (i.e., red and hue values) is then constructed on the basis of different solvatochromic responses of the 4 PDAs to 11 organic solvents. Exposure of the PDA array to an unknown solvent promotes color changes, which are imaged using a smartphone camera and analyzed using the app. A comparison of the color changes to the database promoted by the 11 solvents enables the smartphone app to identify the unknown solvent with 100% accuracy. Additionally, it was demonstrated that the PDA array sensor was sufficiently sensitive to accurately detect the 11 VOC gases. PMID- 29338174 TI - Solution-Processable ZnO/Carbon Quantum Dots Electron Extraction Layer for Highly Efficient Polymer Solar Cells. AB - In this work, we report the effort to develop high-efficiency inverted polymer solar cells (PSCs) by applying a solution-processable bilayer ZnO/carbon quantum dots (C-QDs) electron extraction layer (EEL). It is shown that the use of the bilayer EEL helps to suppress the exciton quenching by passivating the ZnO surface defects in the EEL, leading to an enhanced exciton dissociation, reduced charge recombination and more efficient charge extraction probability, and thereby achieving high power conversion efficiency (PCE). The inverted PSCs, based on the blend of poly{4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5 b']dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4 b]thiophene-4,6-diyl} and [6,6]-phenyl C71-butyric acid methyl ester, possess a significant improvement in PCE of ~9.64%, which is >27% higher than that of a control cell (~7.59%). The use of a bilayer ZnO/C-QD EEL offers a promising approach for attaining high-efficiency inverted PSCs. PMID- 29338175 TI - Limitations of Cs3Bi2I9 as Lead-Free Photovoltaic Absorber Materials. AB - Lead (Pb) halide perovskites have attracted tremendous attention in recent years because of their rich optoelectronic properties, which have resulted in more than 22% power conversion efficient photovoltaics (PVs). Nevertheless, Pb-metal toxicity remains a huge hurdle for extensive applications of these compounds. Thus, alternative compounds with similar optoelectronic properties need to be developed. Bismuth possesses electronic structure similar to that of lead with the presence of ns2 electrons that exhibit rich structural variety as well as interesting optical and electronic properties. Herein, we critically assess Cs3Bi2I9 as a candidate for thin-film solar cell absorber. Despite a reasonable optical band gap (~2 eV) and absorption coefficient, the power conversion efficiency of the Cs3Bi2I9 mesoscopic solar cells was found to be severely lacking, limited by the poor photocurrent density. The efficiency of the Cs3Bi2I9 solar cell can be slightly improved by changing the stoichiometry of the precursor solutions, which is most probably due to the reduction in nonradiative defects as evident from our single-crystal photoluminescence spectroscopy. However, detailed investigations on pristine Cs3Bi2I9 reveal that zero dimensional molecular crystal structure remains one of the main bottlenecks in achieving high performance. On the basis of our comprehensive studies, we have proposed that a continuous network of three-dimensional crystal structure should be another major criterion in addition to proper band gap and suitable optical properties of the future PV compounds. PMID- 29338176 TI - Polystyrene-block-Poly(ionic liquid) Copolymers as Work Function Modifiers in Inverted Organic Photovoltaic Cells. AB - Interfacial layers play a critical role in building up the Ohmic contact between electrodes and functional layers in organic photovoltaic (OPV) solar cells. These layers are based on either inorganic oxides (ZnO and TiO2) or water-soluble organic polymers such as poly[(9,9-dioctyl-2,7-fluorene)-alt-(9,9-bis(3'-(N,N dimethylamino)propyl)-2,7-fluorene)] and polyethylenimine ethoxylated (PEIE). In this work, we have developed a series of novel poly(ionic liquid) nonconjugated block copolymers for improving the performance of inverted OPV cells by using them as work function modifiers of the indium tin oxide (ITO) cathode. Four nonconjugated polyelectrolytes (n-CPEs) based on polystyrene and imidazolium poly(ionic liquid) (PSImCl) were synthesized by reversible addition-fragmentation chain transfer polymerization. The ratio of hydrophobic/hydrophilic block copolymers was varied depending on the ratio of polystyrene to the PSImCl block. The ionic density, which controls the work function of the electrode by forming an interfacial dipole between the electrode and the block copolymers, was easily tuned by simply changing the PSImCl molar ratio. The inverted OPV device with the ITO/PS29-b-PSImCl60 cathode achieved the best power conversion efficiency (PCE) of 7.55% among the synthesized block copolymers, exhibiting an even higher PCE than that of the reference OPV device with PEIE (7.30%). Furthermore, the surface properties of the block copolymers films were investigated by contact angle measurements to explore the influence of the controlled hydrophobic/hydrophilic characters on the device performances. PMID- 29338177 TI - Novel Alkali Activation of Titanium Substrates To Grow Thick and Covalently Bound PMMA Layers. AB - Titanium (Ti) is the most widely used metal in biomedical applications because of its biocompatibility; however, the significant difference in the mechanical properties between Ti and the surrounding tissues results in stress shielding which is detrimental for load-bearing tissues. In the current study, to attenuate the stress shielding effect, a new processing route was developed. It aimed at growing thick poly(methyl methacrylate) (PMMA) layers grafted on Ti substrates to incorporate a polymer component on Ti implants. However, the currently available methods do not allow the development of thick polymeric layers, reducing significantly their potential uses. The proposed route consists of an alkali activation of Ti substrates followed by a surface-initiated atom transfer radical polymerization using a phosphonic acid derivative as a coupling agent and a polymerization initiator and malononitrile as a polymerization activator. The average thickness of the grown PMMA layers is approximately 1.9 MUm. The Ti activation-performed in a NaOH solution-leads to a porous sodium titanate interlayer with a hierarchical structure and an open microporosity. It promotes the covalent grafting reaction because of high hydroxyl groups' content and enables establishing a further mechanical interlocking between the growing PMMA layer and the Ti substrate. As a result, the produced graduated structure possesses high Ti/PMMA adhesion strength (~260 MPa). Moreover, the PMMA layer is (i) thicker compared to those obtained with the previously reported techniques (~1.9 MUm), (ii) stable in a simulated body fluid solution, and (iii) biocompatible. This strategy opens new opportunities toward hybrid prosthesis with adjustable mechanical properties with respect to host bone properties for personalized medicines. PMID- 29338178 TI - DNA Damage and Apoptosis Induction in Cancer Cells by Chemically Engineered Thiolated Riboflavin Gold Nanoassembly. AB - Herein we have engineered a smart nuclear targeting thiol-modified riboflavin gold nano assembly, RfS@AuNPs, which accumulates selectively in the nucleus without any nuclear-targeting peptides (NLS/RGD) and shows photophysically in vitro DNA intercalation. A theoretical model using Molecular Dynamics has been developed to probe the mechanism of formation and stability as well as dynamics of the RfS@AuNPs in aqueous solution and within the DNA microenvironment. The RfS@AuNPs facilitate the binucleated cell formation that is reflected in the significant increase of DNA damage marker, gamma-H2AX as well as the arrest of most of the HeLa cells at the pre-G1 phase indicating cell death. Moreover, a significant upregulation of apoptotic markers confirms that the cell death occurs through the apoptotic pathway. Analyses of the microarray gene expression of RfS@AuNPs treated HeLa cells show significant alterations in vital biological processes necessary for cell survival. Taken together, our study reports a unique nuclear targeting mechanism through targeting the riboflavin receptors, which are upregulated in cancer cells and induce apoptosis in the targeted cells. PMID- 29338179 TI - Ligand-Switchable Micellar Nanocarriers for Prolonging Circulation Time and Enhancing Targeting Efficiency. AB - Targeted drug delivery of nanomedicines offered a promising strategy to improve the tumor accumulation and reduce the side effects of chemotherapeutics. However, undesired recognition of the targeting ligands on the surface of nanocarriers by immune systems or normal tissues decreased the circulation time and reduced the targeting efficiency. Here, we developed a ligand-switchable micellar nanocarrier that can hide the targeting ligands when circulating in the bloodstream and expose them on the surface when entering the tumor microenvironments. With the ligand-switching capability, the nanocarrier achieved a 66% longer blood circulation half-life and a 23% higher tumor accumulation than the nanocarrier with targeting ligands on the surface. This targeting strategy could serve as a universal approach to improve the targeting efficiency for nanomedicines. PMID- 29338180 TI - Hollow Echinus-like PdCuCo Alloy for Superior Efficient Catalysis of Ethanol. AB - Large-scale preparation of hollow echinus-like PdCuCo alloy nanostructures (HENSs) with a high surface area-to-volume ratio, rich active sites, and relatively efficient catalytic activity has attracted considerable research interest. Herein, we present an economic and facile approach to synthesize HENSs by galvanic exchange reactions using Co nanospheres as sacrificial templates. Moreover, the catalytic activity could be adjusted via changing the composition of the catalyst. The composition, morphology, and crystal structure of the as obtained nanomaterials are characterized by various techniques, such as inductively coupled plasma atomic emission spectrometry, transmission electron microscopy, and X-ray diffraction. Electrochemical catalytic measurement results prove that the Pd75Cu8Co3 catalyst obtained under optimal preparation conditions exhibits 10-fold higher activity for ethanol oxidation in comparison with the commercially available 20% Pd/C catalyst. The eminent performance of the Pd75Cu8Co3 electrochemical catalyst could be ascribed to the peculiar echinus like nanostructures. PMID- 29338181 TI - Attaining Melt Processing of Complementary Semiconducting Polymer Blends at 130 degrees C via Side-Chain Engineering. AB - Complementary semiconducting polymer blends (c-SPBs) have been proposed and tested to achieve melt-processed high-performance organic field-effect transistors (OFETs). Prior to this study, melt processing requires temperatures as high as 180 degrees C. To implement this technique into low-cost and large area thin-film manufacturing for flexible organic electronics, semiconducting materials meltable at temperatures tolerable by ubiquitous plastic substrates are still needed. We report here the design and melt processing of a c-SPB consisting of a matrix polymer (DPP-C5) and its fully conjugated analogue. By utilizing a siloxane-terminated alkyl chain and a branched alkyl chain as solubilizing groups, the matrix polymer DPP-C5 presents a melting temperature of 115 degrees C. The resulting c-SPB containing as low as 5% of the fully conjugated polymer could be melt-processed at 130 degrees C. The obtained OFET devices exhibit hole mobility approaching 1.0 cm2/(V s), threshold voltages below 5 V, and ION/IOFF around 105. This combination of efficient charge-carrier transport and considerably low processing temperatures bode well for melt processing of semiconducting polymer-based organic electronics. PMID- 29338182 TI - "Infinite Sensitivity" of Black Silicon Ammonia Sensor Achieved by Optical and Electric Dual Drives. AB - The microstructured and hyperdoped silicon as a superior photoelectric and photovoltaic material is first studied as a gas-sensing material. The material is prepared by femtosecond-laser irradiation on selenium-coated silicon and then fabricated as a conductive gas sensor, targeting ammonia. At room temperature, the sensitivity, response time, repeatability, distinguishability, selectivity, and natural aging effect of the sensor have been systematically studied. Results show that such black silicon has good potential for application as an ammonia sensing material. On the basis of its unique optoelectronic properties, an additional optical drive is proposed for the formation of an optical and electric dual-driven sensor, which is achieved by asymmetric light illumination between the two electrode regions. In a certain range of applied voltage, the sensitivity is enhanced dramatically and even tends to be infinite. For the aged device with degraded sensitivity, a two-order increment is obtained for 500 ppm of NH3 under the extra optical drive. A mechanism based on Dember effect is proposed for explaining such a phenomenon. PMID- 29338183 TI - Plasma-Induced Oxygen Vacancies in Urchin-Like Anatase Titania Coated by Carbon for Excellent Sodium-Ion Battery Anodes. AB - The incorporation of oxygen vacancies in anatase TiO2 has been studied as a promising way to accelerate the transport of electrons and Na+ ions, which is important for achieving excellent electrochemical properties for anatase TiO2. However, wittingly introducing oxygen vacancies in anatase TiO2 for sodium-ion anodes by a facile and effective method is still a challenge. In this work, we report an innovative method to introduce oxygen vacancies into the urchin-like N doped carbon coated anatase TiO2 (NC-DTO) by a facile plasma treatment. The superiorities of the oxygen vacancies combined with the conductive N-doped carbon coating enable the obtained NC-DTO of greatly improved sodium storage performance. When served as the anode for sodium-ion batteries, the NC-DTO electrode shows superior electrochemical performance (capacity: 272 mA h g-1 at 0.25 C, capacity retention: 98.8% after 5000 cycles at 10 C, as well as ultrahigh capacity: 150 mA h g-1 at 15 C). Density functional theory calculations combined with experimental results suggest that considerably improved sodium storage performance of NC-DTO is due to the enhanced electronic conductivity from the N doped carbon layer as well as narrowed band gap and lowered sodiation energy barrier from the introduction of oxygen vacancies. This work highlights that introducing oxygen vacancies into TiO2 by plasma is a promising method to enhance the electrochemical property of TiO2, which also can be applied to different metal oxides for energy storage devices. PMID- 29338184 TI - Design of pH-Sensitive Nanovesicles via Cholesterol Analogue Incorporation for Improving in Vivo Delivery of Chemotherapeutics. AB - pH-responsive polymersomes have emerged as promising nanocarriers for antitumor drugs to realize their fast release and action in a weakly acidic microenvironment of tumor cells. Herein, however, we designed a remarkably pH responsive polymersome self-assembled from amphiphilic benzimidazole-based polyphosphazenes via the incorporation of cholesteryl hemisuccinate (CholHS), a type of cholesteric molecule, into the polymersome bilayers to inhibit the drug release during blood circulation. Actually, unwanted premature drug leakage before arriving at the acidic tumor site has become a serious problem for polymersomes encapsulating water-soluble drugs, especially when the drug loading is at a high level, thus limiting the therapeutic efficacy. In this study, polymersomes displayed high loading capability of doxorubicin hydrochloride as 12.83%. More importantly, CholHS incorporation decreased the membrane permeability of the polymersome and effectively retarded the cargo release under physiological conditions but induced the fast drug-release rate at pH 5.5, demonstrating a more remarkably acid-responsive release behavior when compared to that of the CholHS-free polymersomes. Further in vivo investigations including pharmacokinetic and antitumor activity studies verified the extended circulation time and enhanced antitumor efficacy of the drug-loaded CholHS-incorporated polymersomes. PMID- 29338185 TI - Injectable and Thermosensitive Hydrogel and PDLLA Electrospun Nanofiber Membrane Composites for Guided Spinal Fusion. AB - Spinal fusion is the classic treatment to achieve spinal stability for the treatment of the spinal disease. Generally, spinal fusion still has to combine a certain of bone matrix for promoting bone formation to achieve the desired fusion effect based on the surgery, including the traditional bone matrix, such as the autologous bone, allografts and xenografts. Nevertheless, some problems still existed such as the immunogenic problems, the secondary wound, and pathogenic transfer and so on. Here the injectable thermosensitive hydrogel could substitute to avoid the problems as a potential biological scaffold for tissue engineering. Once injected, they could fill in the irregular-shaped cavity and change to a gel state at physiological temperature. We wanted to design the collagen/n-HA/BMP 2@PCEC/PECE hydrogel composites based on previous work about collagen/n-HA/PECE hydrogel to exhibit better performance in guiding spinal fusion because of the addition of BMP-2@PCEC nanoparticles (PCEC, PCL-PEG-PCL). However, when the hydrogels were injected, one of the surfaces was in contact with the spine, but others were in contact with soft tissue like muscles and fascia. The release behavior was the same at the different surfaces, so the factors could be released into the soft tissue, and it may then be consumed or lead to ectopic bone formation. The hydrogel composites should be improved to adjust the direction of the releaser behavior. In consequence, we wrapped an electrostatic spinning nanofiber membrane possessing hydrophobicity around the hydrogels. In this study, we developed a system that the collagen/n-HA/BMP-2@PCEC/PECE hydrogels were wrapped with the hydrophobicity PDLLA electrospun nanofiber membrane, setting up a barrier between the hydrogels and the soft tissue. The system could exhibit biocompatibility, preventing the factors from escaping to keep their retention in the needed places of osteogenesis; the results demonstrated that it showed an excellent effect on spinal fusion. PMID- 29338186 TI - Editors' Favorites of 2017. PMID- 29338188 TI - Special Issue on Precision Medicine for Brain Cancer in ACS Chemical Neuroscience. PMID- 29338189 TI - Three-Phase Morphology Evolution in Sequentially Solution-Processed Polymer Photodetector: Toward Low Dark Current and High Photodetectivity. AB - Sequentially solution-processed polymer photodetectors (SSP PPDs) based on poly(3 hexylthiophene-2,5-diyl) (P3HT)/[6,6]-phenyl C71-butyric acid methyl ester (PC71BM) are fabricated by depositing the top layers of PC71BM from an appropriate cosolvent of 2-chlorophenol (2-CP)/o-dichlorobenzene (ODCB) onto the predeposited bottom layers of P3HT. By adjusting the ratio of 2-CP/ODCB in the top PC71BM layers, the resulting SSP PPD shows a decreased dark current and an increased photocurrent, leading to a maximum detectivity of 1.23 * 1012 Jones at a wavelength of 550 nm. This value is 5.3-fold higher than that of the conventional bulk heterojunction PPD. Morphology studies reveal that the PC71BM partially penetrates the predeposited P3HT layer during the spin-coating process, resulting in an optimal three-phase morphology with one well-mixed interdiffusion P3HT/PC71BM phase in the middle of the bulk and two pure phases of P3HT and PC71BM at the two electrode sides. We show that the pure phases form high Schottky barriers (>2.0 eV) at the active layer/electrodes interface and efficiently block unfavorable reverse charge carrier injection by significantly decreasing the dark current. The interdiffussion phase enlarges the donor acceptor interfacial area leading to a large photocurrent. We also reveal that the improved performance of SSP PPDs is also due to the enhanced optical absorption, improved P3HT crystallinity, increased charge carrier mobilities, and suppressed bimolecular recombination. PMID- 29338190 TI - Cancer Cell Membrane-Biomimetic Nanoprobes with Two-Photon Excitation and Near Infrared Emission for Intravital Tumor Fluorescence Imaging. AB - Biomimetic fluorescent nanoprobes capable of emitting near-infrared (NIR) fluorescence (lambdamax ~ 720 nm) upon excitation of 800 nm light were developed. The key conjugated polymer enabled two-photon absorption and Forster resonance energy transfer (FRET) processes within the nanoprobes, which imparted the nanoprobes with ideal NIR-incoming-NIR-outgoing fluorescence features. The cancer cell membrane (CM) coating endowed these nanoprobes with perfect biocompatibility and highly specific targeting ability to homologous tumors. It was believed that CM encapsulation provided an additional protecting layer for the photoactive components residing in the core of nanoprobes for retaining their intrinsic fluorescing ability in the physiological milieu. The long-term structural integrity, excellent photostability (fluorescence decrease <10% upon 30 min illumination of 800 nm pulse laser), high NIR fluorescence quantum yield (~20%), and long in vivo circulation time of the target nanoprobes were also confirmed. The ability of these feature-packed nanoprobes for circumventing the challenges of absorption and light scattering caused by cellular structures and tissues was definitely confirmed via in vivo and in vitro experiments. The superior performances of these nanoprobes in terms of fluorescence signaling as well as targeting specificity were verified in intravital fluorescence imaging on tumor bearing model mice. Specifically, these nanoprobes unequivocally enabled high resolution visualization of the fine heterogeneous architectures of intravital tumor tissue, which proclaims the great potential of this type of probe for high contrast fluorescence detection of thick biological samples in practical applications. PMID- 29338192 TI - Under-Oil Switchable Superhydrophobicity to Superhydrophilicity Transition on TiO2 Nanotube Arrays. AB - Recently, smart interfacial materials that can reversibly transit between the superhydrophobicity and superhydrophilicity have aroused much attention. However, all present performances happen in air, and to realize such a smart transition in complex environments, such as oil, is still a challenge. Herein, TiO2 nanotube arrays with switchable transition between the superhydrophobicity and superhydrophilicity in oil are reported. The switching can be observed by alternation of UV irradiation and heating process, and the smart controllability can be ascribed to the cooperative effect between the surface nanostructures and the chemical composition variation. By using the controllable wetting performances, some applications such as under-oil droplet-based microreaction and water-removal from oil were demonstrated on our surface. This paper reports a surface with smart water wettability in oil, which could start some fresh ideas for wetting control on interfacial materials. PMID- 29338191 TI - Conjugate Polyplexes with Anti-Invasive Properties and Improved siRNA Delivery In Vivo. AB - This study reports on a simple method to prepare siRNA-polycation conjugate polyplexes by in situ thiol-disulfide exchange reaction. The conjugate polyplexes are prepared using thiol-terminated siRNA and a bioreducible branched polycationic inhibitor of the CXCR4 chemokine receptor (rPAMD). The rPAMD-SS siRNA conjugate polyplexes exhibit improved colloidal stability and resistance against disassembly with heparin, serum, and physiological salt concentrations when compared with control conventional rPAMD/siRNA polyplexes. Coating the polyplexes with human serum albumin masks the positive surface charge and contributes to the enhanced in vitro gene silencing and improved safety in vivo. The conjugate polyplexes display improved in vivo reporter gene silencing following intravenous injection in tumor-bearing mice. Because the conjugate polyplexes retained the ability of rPAMD to inhibit CXCR4 and restrict cancer cell invasion, the developed systems show promise for future combination anti metastatic siRNA therapies of cancer. PMID- 29338193 TI - Induction of Chirality in Two-Dimensional Nanomaterials: Chiral 2D MoS2 Nanostructures. AB - Two-dimensional (2D) nanomaterials have been intensively investigated due to their interesting properties and range of potential applications. Although most research has focused on graphene, atomic layered transition metal dichalcogenides (TMDs) and particularly MoS2 have gathered much deserved attention recently. Here, we report the induction of chirality into 2D chiral nanomaterials by carrying out liquid exfoliation of MoS2 in the presence of chiral ligands (cysteine and penicillamine) in water. This processing resulted in exfoliated chiral 2D MoS2 nanosheets showing strong circular dichroism signals, which were far past the onset of the original chiral ligand signals. Using theoretical modeling, we demonstrated that the chiral nature of MoS2 nanosheets is related to the presence of chiral ligands causing preferential folding of the MoS2 sheets. There was an excellent match between the theoretically calculated and experimental spectra. We believe that, due to their high aspect ratio planar morphology, chiral 2D nanomaterials could offer great opportunities for the development of chiroptical sensors, materials, and devices for valleytronics and other potential applications. In addition, chirality plays a key role in many chemical and biological systems, with chiral molecules and materials critical for the further development of biopharmaceuticals and fine chemicals, and this research therefore should have a strong impact on relevant areas of science and technology such as nanobiotechnology, nanomedicine, and nanotoxicology. PMID- 29338194 TI - Sequential and Selective Detection of Two Molecules with a Single Solid-Contact Chronopotentiometric Ion-Selective Electrode. AB - A polymeric membrane ion-selective electrode (ISE) is typically designed for the determination of one specific ion using a conventional method. In this work, we demonstrate a simple, versatile, and sensitive platform for simultaneous detection of two molecules with a single ISE. Under a series of periodic galvanostatic polarization, a solid-contact ISE without ion exchanger properties under zero-current conditions has been successfully used for simultaneous detection of two opposite charged ions with high sensitivity, good selectivity, and fast reversibility. By integration of biorecognition elements with the potentiometric measurement, highly sensitive and selective detection of a broad range of different molecular targets can be predicted. As a proof of concept, a potentiometric genosensor based on magnetic beads-enzyme sandwich assay has been designed for sensitive and selective detection of pathogenic bacteria Escherichia coli O157:H7 and Staphylococcus aureus. Under optimal conditions, two bacteria nucleic acid sequences can be detected simultaneously with high sensitivity and good selectivity by using a single solid-contact potentiometric ISE. The detection limits of Escherichia coli O157:H7 DNA and Staphylococcus aureus DNA are 120 and 54 fM (3sigma), respectively. Because of its simplicity, this potentiometric technique based on ISE can be an attractive tool or detector to perform two analyte measurements. PMID- 29338195 TI - Mesoporous Silica Thin Films for Improved Electrochemical Detection of Paraquat. AB - An electrochemical method was developed for rapid and sensitive detection of the herbicide paraquat in aqueous samples using mesoporous silica thin film modified glassy carbon electrodes (GCE). Vertically aligned mesoporous silica thin films were deposited onto GCE by electrochemically assisted self-assembly (EASA). Cyclic voltammetry revealed effective response to the cationic analyte (while rejecting anions) thanks to the charge selectivity exhibited by the negatively charged mesoporous channels. Square wave voltametry (SWV) was then used to detect paraquat via its one electron reduction process. Influence of various experimental parameters (i.e., pH, electrolyte concentration, and nature of electrolyte anions) on sensitivity was investigated and discussed with respect to the mesopore characteristics and accumulation efficiency, pointing out the key role of charge distribution in such confined spaces on these processes. Calibration plots for paraquat concentration ranging from 10 nM to 10 MUM were constructed at mesoporous silica modified GCE which were linear with increasing paraquat concentration, showing dramatically enhanced sensitivity (almost 30 times) as compared to nonmodified electrodes. Finally, real samples from Meuse River (France) spiked with paraquat, without any pretreatment (except filtration), were analyzed by SWV, revealing the possible detection of paraquat at very low concentration (10-50 nM). Limit of detection (LOD) calculated from real sample analysis was found to be 12 nM, which is well below the permissible limits of paraquat in drinking water (40-400 nM) in various countries. PMID- 29338196 TI - Method for High Frequency Underway N2 Fixation Measurements: Flow-Through Incubation Acetylene Reduction Assays by Cavity Ring Down Laser Absorption Spectroscopy (FARACAS). AB - Because of the difficulty in resolving the large variability of N2 fixation with current methods which rely on discrete sampling, the development of new methods for high-resolution measurements is highly desirable. We present a new method for high-frequency measurements of aquatic N2 fixation by continuous flow-through incubations and spectral monitoring of the acetylene (C2H2, a substrate analog for N2) reduction to ethylene (C2H4). In this method, named Flow-through Incubation Acetylene Reduction Assays by Cavity Ring-Down Laser Absorption Spectroscopy (FARACAS), dissolved C2H2 is continuously admixed with seawater upstream of a continuous-flow stirred-tank reactor (CFSR) in which C2H2 reduction takes place. Downstream of the flow-through incubator, the C2H4 gas is stripped using a bubble column contactor and circulated with a diaphragm pump into a wavelength-scanned cavity ring down laser absorption spectrometer (CRDS). Our method provides high-resolution and precise mapping of aquatic N2 fixation, its diel cycle, and its response to environmental gradients, and can be adapted to measure other biological processes. The short-duration of the flow-through incubations without preconcentration of cells minimizes potential artifacts such as bottle containment effects while providing near real-time estimates for adaptive sampling. We expect that our new method will improve the characterization of the biogeography and kinetics of aquatic N2 fixation rates. PMID- 29338197 TI - Modification of Vapor Phase Concentrations in MoS2 Growth Using a NiO Foam Barrier. AB - Single-layer molybdenum disulfide (MoS2) has attracted significant attention due to its electronic and physical properties, with much effort invested toward obtaining large-area high-quality monolayer MoS2 films. In this work, we demonstrate a reactive-barrier-based approach to achieve growth of highly homogeneous single-layer MoS2 on sapphire by the use of a nickel oxide foam barrier during chemical vapor deposition. Due to the reactivity of the NiO barrier with MoO3, the concentration of precursors reaching the substrate and thus nucleation density is effectively reduced, allowing grain sizes of up to 170 MUm and continuous monolayers on the centimeter length scale being obtained. The quality of the monolayer is further revealed by angle-resolved photoemission spectroscopy measurement by observation of a very well resolved electronic band structure and spin-orbit splitting of the bands at room temperature with only two major domain orientations, indicating the successful growth of a highly crystalline and well-oriented MoS2 monolayer. PMID- 29338198 TI - Atomic Resolution Imaging of Nanoscale Chemical Expansion in PrxCe1-xO2-delta during In Situ Heating. AB - Thin film nonstoichiometric oxides enable many high-temperature applications including solid oxide fuel cells, actuators, and catalysis. Large concentrations of point defects (particularly, oxygen vacancies) enable fast ionic conductivity or gas exchange kinetics in these materials but also manifest as coupling between lattice volume and chemical composition. This chemical expansion may be either detrimental or useful, especially in thin film devices that may exhibit enhanced performance through strain engineering or decreased operating temperatures. However, thin film nonstoichiometric oxides can differ from bulk counterparts in terms of operando defect concentrations, transport properties, and mechanical properties. Here, we present an in situ investigation of atomic-scale chemical expansion in PrxCe1-xO2-delta (PCO), a mixed ionic-electronic conducting oxide relevant to electrochemical energy conversion and high-temperature actuation. Through a combination of electron energy loss spectroscopy and transmission electron microscopy with in situ heating, we characterized chemical strains and changes in oxidation state in cross sections of PCO films grown on yttria stabilized zirconia (YSZ) at temperatures reaching 650 degrees C. We quantified, both statically and dynamically, the nanoscale chemical expansion induced by changes in PCO redox state as a function of position and direction relative to the film-substrate interface. Additionally, we observed dislocations at the film substrate interface, as well as reduced cation localization to threading defects within PCO films. These results illustrate several key aspects of atomic-scale structure and mechanical deformation in nonstoichiometric oxide films that clarify distinctions between films and bulk counterparts and that hold several implications for operando chemical expansion or "breathing" of such oxide films. PMID- 29338199 TI - Enediyne-Comprising Amino Aldehydes in the Passerini Reaction. AB - Multicomponent reactions represent a highly efficient approach to a broad spectrum of structurally diverse compounds starting from simple and affordable compounds. A focused library of tweezers-like compounds is prepared by employing the multicomponent Passerini reaction comprising enediyne-derived amino aldehydes. The reaction proceeds under mild conditions yielding Passerini products in good to excellent yields. Postcondensation modifications of Passerini products are demonstrated through a simple deprotection/coupling approach comprising amino functionality, furnishing enediyne cores with highly decorated arms. PMID- 29338200 TI - Solid-Phase Synthesis of Oligopeptides Containing Sterically Hindered Amino Acids on Nonswellable Resin Using 3-Nitro-1,2,4-triazol-1-yl-tris(pyrrolidin-1 yl)phosphonium Hexafluorophosphate (PyNTP) as the Condensing Reagent. AB - Peptides are still difficult to synthesize when they contain sterically hindered amino acids, such as alpha,alpha-disubstituted amino acids and N-substituted amino acids. In this study, solid-phase syntheses of oligopeptides containing multiple alpha-aminoisobutyric acid (Aib) residues were performed in high yields by using a nonswellable resin as the solid-support and 3-nitro-1,2,4-triazol-1-yl tris(pyrrolidin-1-yl)phosphonium hexafluorophosphate (PyNTP) as the condensing reagent. PMID- 29338201 TI - Self-Assembly of Spider Silk-Fusion Proteins Comprising Enzymatic and Fluorescence Activity. AB - The recombinant spider silk protein eADF4(C16) was genetically fused either with esterase 2 (EST2) or green fluorescent protein (GFP). The fusions EST-eADF4(C16) and GFP-eADF4(C16) were spectroscopically investigated and showed native structures of EST and GFP. The structural integrity was confirmed by the enzymatic activity of EST and the fluorescence of GFP. The spider silk moiety retained its intrinsically unstructured conformation in solution and the self assembly into either nanofibrils or nanoparticles could be controlled by the concentration of phosphate. Particles, however, showed significantly lower activity of the EST and GFP domains likely caused by a steric hindrance. However, upon self-assembly of EST-eADF4(C16) and GFP-eADF4(C16) into fibrils the protein activities were retained. In general, the fusion of globular enzymes with the spider silk domain allows the generation of fibrous biomaterials with catalytic or light emitting properties. PMID- 29338202 TI - Nanoscale Domain Imaging of All-Polymer Organic Solar Cells by Photo-Induced Force Microscopy. AB - Rapid nanoscale imaging of the bulk heterojunction layer in organic solar cells is essential to the continued development of high-performance devices. Unfortunately, commonly used imaging techniques such as tunneling electron microscopy (TEM) and atomic force microscopy (AFM) suffer from significant drawbacks. For instance, assuming domain identity from phase contrast or topographical features can lead to inaccurate morphological conclusions. Here we demonstrate a technique known as photo-induced force microscopy (PiFM) for imaging organic solar cell bulk heterojunctions with nanoscale chemical specificity. PiFM is a relatively recent scanning probe microscopy technique that combines an AFM tip with a tunable infrared laser to induce a dipole for chemical imaging. Coupling the nanometer resolution of AFM with the chemical specificity of a tuned IR laser, we are able to spatially map the donor and acceptor domains in a model all-polymer bulk heterojunction with resolution approaching 10 nm. Domain size from PiFM images is compared to bulk-averaged results from resonant soft X-ray scattering, indicating excellent quantitative agreement. Further, we demonstrate that in our all-polymer system, the AFM topography, AFM phase, and PiFM show poor correlation, highlighting the need to move beyond standard AFM for morphology characterization of bulk heterojunctions. PMID- 29338203 TI - Boron Analogue of Vinylidene Dication Supported by Phosphines. AB - In the presence of a catalytic amount of heavier tetrylene dichlorides, an allenic diborene 1 undergoes a 1,3-hydrogen shift to afford a terminal diborene 2, which can be deemed a boron analogue of vinylidene dication stabilized by Lewis bases. X-ray diffraction analysis and computational studies revealed that 2 involves a conjugative interaction between the C?C and B?B pi-orbitals. The reaction of 2 with ZnBr2 afforded the corresponding isolable complex 3, in which two boon centers coordinate to the Zn atom asymmetrically. PMID- 29338204 TI - Correction to Hydrogen Sulfide Capture: From Absorption in Polar Liquids to Oxide, Zeolite, and Metal-Organic Framework Adsorbents and Membranes. PMID- 29338205 TI - Control of Amphiphile Self-Assembly via Bioinspired Metal Ion Coordination. AB - Inspired by marine siderophores that exhibit a morphological shift upon metal coordination, hybrid peptide-polymer conjugates that assemble into different morphologies based on the nature of the metal ion coordination have been designed. Coupling of a peptide chelator, hexahistidine, with hydrophobic oligostyrene allows a modular strategy to be established for the efficient synthesis and purification of these tunable amphiphiles (oSt(His)6). Remarkably, in the presence of different divalent transition metal ions (Mn, Co, Ni, Cu, Zn, and Cd) a variety of morphologies were observed. Zinc(II), cobalt(II), and copper(II) led to aggregated micelles. Nickel(II) and cadmium(II) produced micelles, and multilamellar vesicles were obtained in the presence of manganese(II). This work highlights the significant potential for transition metal ion coordination as a tool for directing the assembly of synthetic nanomaterials. PMID- 29338206 TI - Application of Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) and 33S Isotope Labeling for Monitoring Sulfur Processes in Livestock Waste. AB - Reduced sulfur compounds emitted from livestock production cause odor nuisance for local residents. The microbial processes responsible for this are not well described in swine manure and a method for monitoring the biological processes is necessary to develop strategic abatement technologies. In this study, Proton Transfer-Reaction Mass Spectrometry and isotope-labeled sulfate were combined and applied to elucidate the sulfur processes in swine manure with high time resolution. We successfully monitored reduction of isotope 33S labeled sulfate into corresponding 33S hydrogen sulfide and found that some of the 33S hydrogen sulfide was further methylated into 33S methanethiol. The isotope patterns in reduced sulfur compounds together with usage of inhibitors enabled us to calculate a sulfate reduction rate of 1.03 +/- 0.18 mM/day equivalent to 76.9 +/- 3.0% of total hydrogen sulfide emissions. Cysteine degradation constituted 20.2 +/- 2.7% of the total hydrogen sulfide produced and the remaining hydrogen sulfide came from demethylation of methanethiol and dimethyl sulfide. Another source to methanethiol, besides hydrogen sulfide methylation, was methionine degradation, which contributed with 78.3 +/- 2.5% of the methanethiol production, whereas the remaining 21.7 +/- 2.5% came from hydrogen sulfide methylation. This study suggests, therefore, that emissions of odorous sulfur compounds from swine manure can be reduced by inhibiting methionine degradation and sulfate reduction. PMID- 29338207 TI - Total Synthesis of (-)-Xylogranatopyridine B via a Palladium-Catalyzed Oxidative Stannylation of Enones. AB - We report a total synthesis of the pyridine-containing limonoid alkaloid (-) xylogranatopyridine B in 11 steps from commercially available dihydrocarvone. The central pyridine ring was assembled by a late-stage fragment coupling approach employing a modified Liebeskind pyridine synthesis. One fragment was prepared by an allyl-palladium catalyzed oxidative enone beta-stannylation, in which the key bimetallic beta-stannyl palladium enolate intermediate undergoes a beta-hydride elimination. This methodology also allowed introduction of alkyl and silyl groups to the beta-position of enones. PMID- 29338208 TI - Hierarchical Composite Membranes with Robust Omniphobic Surface Using Layer-By Layer Assembly Technique. AB - In this study, composite membranes were fabricated via layer-by-layer (LBL) assembly of negatively charged silica aerogel (SiA) and 1H,1H,2H,2H perfluorodecyltriethoxysilane (FTCS) on a polyvinylidene fluoride phase inversion membrane and interconnecting them with positively charged poly(diallyldimethylammonium chloride) (PDDA) via electrostatic interaction. The results showed that the PDDA-SiA-FTCS coated membrane had significantly enhanced the membrane structure and properties. New trifluoromethyl and tetrafluoroethylene bonds appeared at the surface of the coated membrane, which led to lower surface free energy of the composite membrane. Additionally, the LBL membrane showed increased surface roughness. The improved structure and property gave the LBL membrane an omniphobic property, as indicated by its good wetting resistance. The membrane performed a stable air gap membrane distillation (AGMD) flux of 11.22 L/m2 h with very high salt rejection using reverse osmosis brine from coal seam gas produced water as feed with the addition of up to 0.5 mM SDS solution. This performance was much better compared to those of the neat membrane. The present study suggests that the enhanced membrane properties with good omniphobicity via LBL assembly make the porous membranes suitable for long term AGMD operation with stable permeation flux when treating challenging saline wastewater containing low surface tension organic contaminants. PMID- 29338209 TI - Injectable Self-Healing Zwitterionic Hydrogels Based on Dynamic Benzoxaborole Sugar Interactions with Tunable Mechanical Properties. AB - Dynamic hydrogels based on arylboronic esters have been considered as ideal platforms for biomedical applications given their self-healing and injectable characteristics. However, there still exist some critical issues that need to be addressed or improved, including hydrogel biocompatibility, physiological usability, and tunability of mechanical properties. Here, two kinds of phospholipid bioinspired MPC copolymers, one is zwitterionic copolymer (PMB) containing a fixed 15 mol % of benzoxaborole (pKa ~ 7.2) groups and the other is zwitterionic glycopolymers (PMG) with varied ratios of sugar groups (20%, 50%, 80%), were synthesized respectively via one-pot facile reversible addition fragmentation chain transfer (RAFT) polymerization. PMBG hydrogels were formed spontaneously after mixing 10 wt % of PMB and PMG copolymer solutions because of dynamic benzoxaborole-sugar interactions. The mechanical properties of nine hydrogels (3 * 3) with different sugar contents and pHs (7.4, 8.4, 9.4) were carefully studied by rheological measurements, and hydrogels with higher sugar content and higher pH were found to have higher strength. Moreover, similar to other arylboronic ester-based hydrogels, PMBG hydrogels possessed not only self healing and injectable properties but also pH/sugar responsiveness. Additionally, in vitro cytotoxicity tests of gel extracts on both normal and cancer cells further confirmed the excellent biocompatibility of the hydrogels, which should be ascribed to the biomimetic nature of phosphorylcholine (PC) and sugar residues of the copolymers. Consequently, the zwitterionic dynamic hydrogels provide promising future for diverse biomedical applications. PMID- 29338210 TI - An Emission-Free Vacuum Chlorinating Process for Simultaneous Sulfur Fixation and Lead Recovery from Spent Lead-Acid Batteries. AB - Spent lead-acid battery recycling by using conventional technologies is usually accompanied by releases of lead-containing wastewater as well as emissions of sulfur oxides and lead particulates that may potentially cause secondary pollution. This study developed a vacuum chlorinating process for simultaneous sulfur fixation and high-purity lead chloride (PbCl2) recovery from spent lead paste by using calcium chloride (CaCl2) and silicon dioxide (SiO2) as reagents. The process train includes pretreatment, simultaneous PbCl2 production and sulfur fixation, and PbCl2 volatilization. The pretreatment eliminated chlorine emission from direct chlorinating reaction of PbO2 in the initial S-paste (PbSO4/PbO2/PbO/Pb). During the subsequent PbCl2 production and sulfur fixation step, lead compounds in the P-paste (PbSO4/PbO) was converted to volatile PbCl2, and sulfur was simultaneously fixed to the solid residues in the form of CaSO4 to eliminate the emission of sulfur oxides. The final step, PbCl2 volatilization under vacuum, is a physical phase-transformation process of ionic crystals, following a zeroth-order kinetic model. A cost estimate indicates a profit of USD $ 8.50/kg PbCl2. This process offers a novel green lead recovery alternative for spent lead-acid batteries with environmental and economic benefits. PMID- 29338211 TI - Highly Stable RNA Capture by Dense Cationic Polymer Brushes for the Design of Cytocompatible, Serum-Stable SiRNA Delivery Vectors. AB - The high density of polymer brushes confers to these coatings unique physicochemical properties, in particular for the regulation of biomolecular interaction and the design of highly selective coatings for biosensors and protein patterning. Here, we show that high density poly(dimethylaminoethyl methacrylate) cationic polymer brushes enable the stable uptake of high levels of oligonucleotides. This is proposed to result from the high degree of crowding and associated increase in entropic driving force for the binding of polyelectrolytes such as nucleic acid molecules. We further demonstrate the ease with which such coatings allow the design of highly structured nanomaterials for siRNA delivery using block copolymer-brush-based nanoparticles that allow the protection of oligonucleotides by a protein-resistant outer block. In particular, these nanomaterials display a high serum stability and low cytotoxicity while retaining excellent knock down efficiencies. Polymer brush-based nanomaterials therefore appear particularly attractive for the rational design of a new generation of high performance theranostics and RNA delivery probes. PMID- 29338212 TI - Catalytic Dehydrogenative Stannylation of C(sp)-H Bonds Involving Cooperative Sn H Bond Activation of Hydrostannanes. AB - The catalytic generation of a stannylium-ion-like tin electrophile by heterolytic cleavage of the Sn-H bond in hydrostannanes at the Ru-S bond of Ohki-Tatsumi complexes is reported. Reacting these activated hydrostannanes with terminal acetylenes does not lead to hydrostannylation of the C-C triple bond but to dehydrogenative stannylation of the alkyne terminus. The scope of this rare direct C(sp)-H bond stannylation with hydrostannanes is broad, and a mechanism involving a beta-tin-stabilized vinyl cation likely having a bridged structure is presented. PMID- 29338213 TI - Selective Dehydrogenative Coupling of Ethylene to Butadiene via an Iridacyclopentane Complex. AB - An iridium complex is found to catalyze the selective dehydrogenative coupling of ethylene to 1,3-butadiene. The key intermediate, and a major resting state, is an iridacyclopentane that undergoes a surprisingly facile beta-H elimination, enabled by a partial dechelation (kappa3-kappa2) of the supporting 3,5 dimethylphenyl-2,6-bis(oxazolinyl) ligand. PMID- 29338215 TI - Improving Flue Gas Mercury Removal in Waste Incinerators by Optimization of Carbon Injection Rate. AB - This study tested the mercury emission characteristics of six municipal solid waste incinerators (MSWIs) and recommended future mercury control via adjusting operational parameters. The results indicated that over 99% of the mercury in solid wastes ended in fly ash and flue gas, of which 3.3-66.3% was emitted to air through stack gas. Mercury in the stack gas was mainly in the form of oxidized mercury (Hg2+), the proportion (65.4-89.0%) of which was far higher than previous estimation (15%). Mercury removal efficiencies (MRE) of the tested incinerators were in the range of 33.6-95.2%. The impact of waste incineration capacity, gas flow, fly ash yield, and activated carbon (AC) injection on MRE were analyzed. We found that the MRE was significantly linearly correlated to the ratio of AC injection and fly ash yield (correlation coefficient = 0.98, significance <0.01). AC injection value is determined based on the control of dioxin emissions without considering mercury control in traditional design. To increase MRE of MSWIs, the AC injection should increase from around 100 mg.Nm-3 to 135 mg.Nm-3 for grate furnace combustor and 170 mg.Nm-3 for circulation fluidized bed combustor, so as to reach a MRE of 90%. PMID- 29338214 TI - A Tool for the Import of Natural and Unnatural Nucleoside Triphosphates into Bacteria. AB - Nucleoside triphosphates play a central role in biology, but efforts to study these roles have proven difficult because the levels of triphosphates are tightly regulated in a cell and because individual triphosphates can be difficult to label or modify. In addition, many synthetic biology efforts are focused on the development of unnatural nucleoside triphosphates that perform specific functions in the cellular environment. In general, both of these efforts would be facilitated by a general means to directly introduce desired triphosphates into cells. Previously, we demonstrated that recombinant expression of a nucleoside triphosphate transporter from Phaeodactylum tricornutum (PtNTT2) in Escherichia coli functions to import triphosphates that are added to the media. Here, to explore the generality and utility of this approach, we report a structure activity relationship study of PtNTT2. Using a conventional competitive uptake inhibition assay, we characterize the effects of nucleobase, sugar, and triphosphate modification, and then develop an LC-MS/MS assay to directly measure the effects of the modifications on import. Lastly, we use the transporter to import radiolabeled or 2'-fluoro-modified triphosphates and quantify their incorporation into DNA and RNA. The results demonstrate the general utility of the PtNTT2-mediated import of natural or modified nucleoside triphosphates for different molecular or synthetic biology applications. PMID- 29338216 TI - Effect of Thermochemical Synthetic Conditions on the Structure and Dielectric Properties of Ga1.9Fe0.1O3 Compounds. AB - We report on the tunable and controlled dielectric properties of iron (Fe)-doped gallium oxide (Ga2O3; Ga1.9Fe0.1O3, referred to as GFO) inorganic compounds. The GFO materials were synthesized using a standard high-temperature, solid-state chemical reaction method by varying the thermochemical processing conditions, namely, different calcination and sintering environments. Structural characterization by X-ray diffraction revealed that GFO compounds crystallize in the beta-Ga2O3 phase. The Fe doping has induced slight lattice strain in GFO, which is evident in structural analysis. The effect of the sintering temperature (Tsint), which was varied in the range of 900-1200 degrees C, is significant, as revealed by electron microscopy analysis. Tsint influences the grain size and microstructure evolution, which, in turn, influences the dielectric and electrical properties of GFO compounds. The energy-dispersive X-ray spectrometry and mapping data demonstrate the uniform distribution of the elemental composition over the microstructure. The temperature- and frequency-dependent dielectric measurements indicate the characteristic features that are specifically due to Fe doping in Ga2O3. The spreading factor and relaxation time, calculated using Cole-Cole plots, are in the ranges of 0.65-0.76 and 10-4 s, respectively. The results demonstrate that densification and control over the microstructure and properties of GFO can be achieved by optimizing Tsint. PMID- 29338217 TI - Unprecedented Synergistic Effects of Nanoscale Nutrients on Growth, Productivity of Sweet Sorghum [Sorghum bicolor (L.) Moench], and Nutrient Biofortification. AB - Evidence-based synergistic effects of nanoscale materials (size of <100 nm in at least one dimension) were scantly documented in agriculture at field scale. Herein, we report for the first time on effects of nanoscale zinc oxide (n-ZnO), calcium oxide (n-CaO), and magnesium oxide (n-MgO) on growth and productivity of sweet sorghum [Sorghum bicolor (L.) Moench]. A modified sol-gel method was used to prepare nanoscale materials under study. Characterization was performed using transmission and scanning electron microscopies, X-ray diffraction, and dynamic light scattering. Average sizes (25, 53.7, and 53.5 nm) and zeta potentials ( 10.9, -28.2, and -16.2 mV) of n-ZnO, n-CaO, and n-MgO were measured, respectively. The significant grain yield (17.8 and 14.2%), cane yield (7.2 and 8.0%), juice yield (10 and 12%), and higher sucrose yield (21.8 and 20.9%) were recorded with the application of nanoscale materials in the years 2014 and 2015, respectively. Nutrient uptake was significant with foliar application of nanoscale nutrients. PMID- 29338218 TI - Mimicking the Key Functions of Photosystem II in Artificial Photosynthesis for Photoelectrocatalytic Water Splitting. AB - It has been anticipated that learning from nature photosynthesis is a rational and effective way to develop artificial photosynthesis system, but it is still a great challenge. Here, we assembled a photoelectrocatalytic system by mimicking the functions of photosystem II (PSII) with BiVO4 semiconductor as a light harvester protected by a layered double hydroxide (NiFeLDH) as a hole storage layer, a partially oxidized graphene (pGO) as biomimetic tyrosine for charge transfer, and molecular Co cubane as oxygen evolution complex. The integrated system exhibited an unprecedentedly low onset potential (0.17 V) and a high photocurrent (4.45 mA cm-2), with a 2.0% solar to hydrogen efficiency. Spectroscopic studies revealed that this photoelectrocatalytic system exhibited superiority in charge separation and transfer by benefiting from mimicking the key functions of PSII. The success of the biomimetic strategy opened up new ways for the rational design and assembly of artificial photosynthesis systems for efficient solar-to-fuel conversion. PMID- 29338219 TI - Pretargeted Immuno-PET Based on Bioorthogonal Chemistry for Imaging EGFR Positive Colorectal Cancer. AB - Pretargeted immuno-PET imaging based on the bioorthogonal chemistry between 18F labeled Reppe anhydride derivatives and tetrazine conjugates of the EGFR-specific monoclonal antibodies cetuximab and panitumumab was performed. This pretargeting approach yielded high target-to-nontarget ratios. Furthermore, due to the fast clearance rate of the PET probe, the overall radiation burden to nontarget tissues was also substantially decreased. PMID- 29338220 TI - The Multiple Role of Bromide Ion in PPCPs Degradation under UV/Chlorine Treatment. AB - This study investigated the role of bromide ions in the degradation of nine pharmaceuticals and personal care products (PPCPs) during the UV/chlorine treatment of simulated drinking water containing 2.5 mgC L-1 natural organic matter (NOM). The kinetics of contributions from UV irradiation and from oxidation by free chlorine, free bromine, hydroxyl radical and reactive halogen species were evaluated. The observed loss rate constants of PPCPs in the presence of 10 MUM bromide were 1.6-23 times of those observed in the absence of bromide (except for iopromide and ibuprofen). Bromide was shown to play multiple roles in PPCP degradation. It reacts rapidly with free chlorine to produce a trace amount of free bromine, which then contributes to up to 55% of the degradation of some PPCPs during 15 min of UV/chlorine treatment. Bromide was also shown to reduce the level of HO* and to change the reactive chlorine species to bromine containing species, which resulted in decreases in ibuprofen degradation and enhancement in carbamazepine and caffeine degradation, respectively. Reactive halogen species contributed to between 37 and 96% of the degradation of the studied PPCPs except ibuprofen in the presence of 10 MUM bromide ion. The effect of bromide is non-negligible during the UV/chlorine treatment. PMID- 29338221 TI - Synthetic Strategy toward the Pentacyclic Core of Melodinus Alkaloids. AB - The three-component Povarov reaction is efficiently utilized for construction of the pentacyclic framework of complex Melodinus alkaloids, which is amenable to expansion to other complex natural products. The key steps were Povarov reaction, one-pot reductive cyclization, and ring-closing metathesis (RCM) reaction. PMID- 29338222 TI - Computational Modeling of a Caged Methyl Cation: Structure, Energetics, and Vibrational Analysis. AB - DFT calculations for CH3+ within a constrained cage of water molecules permit the controlled manipulation of distances rax and req to "axial" and "equatorial" waters. Equatorial CH...O interactions catalyze methyl transfer (MT) between axial waters. Variation in rax has a greater effect on CH bond lengths and stretching force constants in the symmetric SN2-like transition structures than variation in req. In-plane bending frequencies are insensitive to these variations in cage dimensions, but axial interactions loosen the out-of-plane bending mode (OP) whereas equatorial interactions stiffen it. Frequencies for rotational and translational motions of CH3+ within the cage are influenced by rax and req. In particular, translation of CH3+ in the axial direction is always coupled to cage motion. With longer rax, CH3+ translation is coupled with asymmetric CO bond stretching, but with shorter rax, it is also coupled with OP (equivalent to the umbrella mode of trigonal bipyramidal O...CH3+...O); the magnitude of the imaginary MT frequency increases steeply as rax diminishes. This coupling between CH3+ and its cage is removed by eliminating the rows and columns associated with cage atoms from the full Hessian to obtain a reduced Hessian for CH3+ alone. Within a certain range of cage dimensions, the reduced Hessian yields a real frequency for MT. The importance of using a Hessian large enough to describe the reaction coordinate mode correctly is emphasized for modeling chemical reactions and particularly for kinetic isotope effects in enzymic MT. PMID- 29338223 TI - Chemo-enzymatic Synthesis of Clickable Xylo-oligosaccharide Monomers from Hardwood 4-O-Methylglucuronoxylan. AB - A chemo-enzymatic pathway was developed to transform 4-O-methylglucuronic acid (MeGlcpA) containing xylo-oligosaccharides from beechwood into clickable monomers capable of polymerizing at room temperature and in aqueous conditions to form unique polytriazoles. While the gluco-oligosaccharide oxidase (GOOX) from Sarocladium strictum was used to oxidize C6-propargylated oligosaccharides, the acid-amine coupling reagents 1-ethyl-3-(3-(dimethylamino)propyl) carbodiimide (EDAC) and 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMT-MM) were employed and compared for their ability to append click functionalities to carboxylic acid groups of enzyme-treated oligosaccharides. While DMT-MM was a superior coupling reagent for this application, a triazine side product was observed during C-1 amidation. Resulting bifunctional xylo oligosaccharide monomers were polymerized using a Cu(I) catalyst, forming a soft gel which was characterized by 1H NMR, confirming the triazole product. PMID- 29338224 TI - Deviation from the trans-Effect in Ligand-Exchange Reactions of Zeise's Ions PtCl3(C2H4)- with Heavier Halides (Br-, I-). AB - Four new Zeise's family ions with mixed-halide ligands, i.e., PtClnX3-n(C2H4)- (X = Br, I; n = 1, 2), were synthesized via ligand-exchange reactions of KX salts with KPtCl3(C2H4) in aqueous solutions, and were detected in vacuum via electrospray ionization mass spectrometry. Their photoelectron spectra reveal a series of well-resolved spectral peaks with their electron binding energies (EBEs) decreasing with increasing halide size, with I having a much stronger effect than Br, i.e., 4.57 (-Cl3) > 4.56 (-Cl2Br) > 4.53 (-ClBr2) > 4.34 (-Cl2I) > 4.30 eV (-ClI2). Ab initio electronic structure calculations including spin orbit coupling (SOC) predict that the cis- and trans-isomers are nearly isoenergetic with the cis-isomer for -Cl2X and the trans-isomer for -ClX2 slightly favored, respectively. Excited-state spectra calculated with time dependent density functional theory (TDDFT), and their comparison with the observed ones, suggest that for each species both the cis- and trans configurations coexist in the experiments and contribute to the observed spectra, a fact that clearly deviates from the prediction of the widely accepted trans effect, which suggests that only one isomer would have formed. PMID- 29338225 TI - Stereoselective Photodimerization of 3-Arylindenones in Solution and in the Solid State. AB - Photodimerization of 3-arylindenones in solution and in the solid state was examined. Irradiation of 3-arylindenones in benzene exclusively gave C2-symmetric anti-HH cyclobutane dimers in good yields. In contrast, photolysis in the solid state afforded syn-HH cyclobutane dimers efficiently, which was considerably influenced by the molecular arrangement in the crystal lattice. PMID- 29338226 TI - Prenylated 2-Phenoxychromones and Flavonoids from Epimedium brevicornum and Revised Structures of Epimedonins A and B. AB - Six hitherto unknown prenylated 2-phenoxychromones, epimedonin G (1), 7-O methylepimedonin G (2), and epimedonins H-K (3-6), and two new prenylflavonoids, epimedonin L (7) and 3"-O-desmethylspinorhamnoside (8), were isolated from an ethanol extract of the aerial parts of Epimedium brevicornum. Their structures were established on the basis of spectroscopic data interpretation. Compound 7 exhibited cytotoxic activity when evaluated against four human cancer cell lines (HL-60, A-549, MCF-7, and SW-480), with IC50 values of <10 MUM. In addition, the structures of epimedonins A and B (9a, 10a), recently isolated from E. koreanum, were corrected by reanalysis of the published NMR data. PMID- 29338227 TI - Entangled Photonic-Nuclear Molecular Dynamics of LiF in Quantum Optical Cavities. AB - The quantum photodynamics of a simple diatomic molecule with a permanent dipole immersed within an optical cavity containing a quantized radiation field is studied in detail. The chosen molecule under study, lithium fluoride (LiF), is characterized by the presence of an avoided crossing between the two lowest 1Sigma potential energy curves (covalent-ionic diabatic crossing). Without field, after prompt excitation from the ground state 1 1Sigma, the excited nuclear wave packet moves back and forth in the upper 2 1Sigma state, but in the proximity of the avoided crossing, the nonadiabatic coupling transfers part of the nuclear wave packet to the lower 1 1Sigma state, which eventually leads to dissociation. The quantized field of a cavity also induces an additional light crossing in the modified dressed potential energy curves with similar transfer properties. To understand the entangled photonic-nuclear dynamics, we solve the time-dependent Schrodinger equation by using the multiconfigurational time-dependent Hartree method (MCTDH). The single mode quantized field of the cavity is represented in the coordinate space instead of in the Fock space, which allows us to deal with the field as an additional vibrational mode within the MCTDH procedure on equal footing. We prepare the cavity with different quantum states of light, namely, Fock states, coherent states, and squeezed coherent states. Our results reveal pure quantum light effects on the molecular photodynamics and the dissociation yields of LiF, which are quite different from the light-undressed case and which cannot be described in general by a semiclassical approach using classical electromagnetic fields. PMID- 29338228 TI - Total Synthesis and Structural Determination of XR774, a Tyrosine Kinase Inhibitor. AB - Total synthesis and structural determination of XR774 has been accomplished. The benzo[ j]fluoranthene skeleton has been constructed by regioselective coupling between tetraline 3 and tetralone 4 successively followed by the sequential transformation including the Birch reduction to prepare allylic alcohol, simultaneous bromination of vinylic and aromatic moieties, and the nickel mediated intramolecular coupling reaction. The optical resolution of racemic 17 led to the first total synthesis of (-)-XR774. PMID- 29338229 TI - Reconstitution of Kinamycin Biosynthesis within the Heterologous Host Streptomyces albus J1074. AB - Diazofluorene compounds such as kinamycin and lomaiviticin feature unique molecular structures and compelling medicinal bioactivities. However, a complete understanding of the biosynthetic details for this family of natural products has yet to be fully elucidated. In addition, a lack of genetically and technically amenable production hosts has limited access to the full medicinal potential of these compounds. Here, we report the capture of the complete kinamycin gene cluster from Streptomyces galtieri Sgt26 by bacterial artificial chromosome cloning, confirmed by successful production of kinamycin in the heterologous host Streptomyces albus J1074. Sequence analysis and a series of gene deletion experiments revealed the boundary of the cluster, which spans 75 kb DNA. To probe the last step in biosynthesis, acetylation of kinamcyin F to kinamycin D, gene knockout, and complementation experiments identified a single gene product involved with final acetylation conversions. This study provides full genetic information for the kinamycin gene cluster from S. galtieri Sgt26 and establishes heterologous biosynthesis as a production platform for continued mechanistic assessment of compound formation and utilization. PMID- 29338230 TI - Organosilicon Reducing Reagents for Stereoselective Formations of Silyl Enol Ethers from alpha-Halo Carbonyl Compounds. AB - Salt-free stereoselective synthesis of silyl enol ethers was achieved by treating alpha-halo carbonyl compounds with 2,3,5,6-tetramethyl-1,4-bis(trimethylsilyl) 1,4-dihydropyrazine. In this reaction, easily removable trimethylsilyl halides and 2,3,5,6-tetramethylpyrazine were generated as the reaction byproducts. Due to the inertness of the reaction byproducts, we found a one-pot transformation of the in situ generated silyl enol ethers into various alpha-functionalized carbonyls by reaction with Togni-II reagent or aldehydes. PMID- 29338231 TI - Fluorous-Phase Approach to alpha-Hydroxytropolone Synthesis. AB - alpha-Hydroxytropolones (alphaHTs) are troponoids that demonstrate inhibition against an array of therapeutically significant targets, making them potential drug leads for several human diseases. We have utilized a recently discovered one pot three-component oxidopyrylium cycloaddition in a solid-supported synthesis of alphaHTs. Though the procedure is time efficient and generates assay-ready molecules, the system suffers from low yields and an inability to perform reaction modifications on resin-bound intermediates. In order to combat these issues with the solid-phase platform, we incorporated fluorous tags into our synthetic route. Through the implementation of fluorous phase chemistry, we demonstrate a substantial increase in the overall yield of alphaHTs, as well as an ability to execute metal-catalyzed cross coupling and amide coupling on fluorous tagged intermediates. We also show that tagged molecules can be separated from nonfluorous impurities, and vice versa, by utilizing fluorous liquid-liquid and solid-phase extractions. Hence, these proof-of-principle investigations describe the viability of a fluorous phase approach to alphaHT synthesis and its potential to serve as a combinatorial technique to produce structurally diverse substrates. PMID- 29338232 TI - Improved Descriptors for the Quantitative Structure-Activity Relationship Modeling of Peptides and Proteins. AB - The ability to model the activity of a protein using quantitative structure activity relationships (QSAR) requires descriptors for the 20 naturally coded amino acids. In this work we show that by modifying some established descriptors we were able to model the activity data of 140 mutants of the enzyme epoxide hydrolase with improved accuracy. These new descriptors (referred to as physical descriptors) also gave very good results when tested against a series of four dipeptide data sets. The physical descriptors encode the amino acids using only two orthogonal scales: the first is strongly linked to hydrophilicity/hydrophobicity, and the second, to the volume of the amino acid residue. The use of these new amino acid descriptors should result in simpler and more readily interpretable models for the enzyme activity (and potentially other functions of interest, e.g., secondary and tertiary structure) of peptides and proteins. PMID- 29338233 TI - Evaluation of the Giant Ferromagnetic pi-d Interaction in Iron-Phthalocyanine Molecule. AB - The interaction between itinerant pi and localized d electrons in metal phthalocyanines, namely, Jpid interaction, is considered as responsible for the giant negative magnetoresistance observed in several phthalocyanine-based conductors, among many other important physical properties. Despite the fundamental and technological importance of this on-site intramolecular interaction, its giant ferromagnetic nature has been only recently demonstrated by the experiments conducted by Murakawa et al. in the neutral radical [Fe(Pc)(CN)2].2CHCl3 ( Phys. Rev. B 2015 , 92 , 054429 ). In this article, we present the theoretical evaluation of this interaction combining wave function based electronic calculations on isolated Fe(Pc)(CN)2 molecules and density functional theory-based periodic calculations on the crystal. Our calculations confirm the ferromagnetic nature of the pi-d interaction, with a coupling constant as large as Jpid/kB = 570 K, in excellent agreement with the experiments, and the presence of intermolecular antiferromagnetic interactions driven by the pi-pi overlap of neighboring phthalocyaninato molecules. The analysis of the wave function of the ground state of the Fe(Pc)(CN)2 molecule provides the clues of the origin of this giant ferromagnetic pi-d interaction. PMID- 29338234 TI - Role of Reaction Conditions in the Global and Local Two Parabolas Charge Transfer Model. AB - The local and global charge transfer approach based on the two parabolas model is applied to several problems aiming to show the importance of incorporating the reaction conditions to evaluate the global and local chemical descriptors. It is shown that, by preparation of the reactants, the chemical potentials of the reacting species determined by the two parabolas model satisfy the condition for the transfer of electrons in the direction dictated by the chemical potential difference. The model is applied to the hydration of alkenes, showing that it recovers Markovnikov's rule, to aromatic nitration, and to the interaction of nitrobenzenes with 1,3-diethylurea, an electrochemically controlled hydrogen bonding problem. The applications presented show that to satisfy the charge transfer directionality established by the chemical potential differences obtained from the two parabolas model, one has to incorporate the reaction conditions in the evaluation of the global and local chemical descriptors. The global and local charge transfer predicted along these lines allows one to determine the direction of electron transfer prevailing in the reaction and also the most relevant atoms participating in the interactions between the reactants, aiding in the unraveling of the chemical interactions present in the system under investigation. PMID- 29338235 TI - Enantioselective Dearomatization of Alkylpyridiniums by N-Heterocyclic Carbene Catalyzed Nucleophilic Acylation. AB - A chiral NHC-catalyzed dearomatizing reaction of activated N-alkylpyridinium salts with aliphatic aldehydes is described. The resulting acylated 1,4 dihydropyridines have been obtained with complete C4 regioselectivity and enantioselectivities in the range 52-78% ee. The (4R)-absolute configuration of the synthesized compounds has been determined by the TD-DFT simulation of the electronic circular dichroism spectra. PMID- 29338236 TI - Detection of the Cytotoxic Penitrems A-F in Cheese from the European Single Market by HPLC-MS/MS. AB - Penitrems are fungal indole diterpene-derived tremorgenic secondary metabolites, which are mainly produced by Penicillium spp. Several cases of intoxications with penitrems and subsequent occurrences of penitrem A in foodstuff underline the need for reliable quantitation methods for the detection of these mycotoxins in food. In this study, a simple and fast high-performance liquid chromatography tandem mass spectrometry (HPLC-MS/MS) method for the quantitative analysis of penitrems A-F in cheese was developed. Therefore, penitrems A-F were isolated from Penicillium crustosum as analytical reference standards. The analysis of 60 cheese samples from the European single market (EU) revealed the occurrence of penitrem A in 10% of the analyzed samples with an average concentration of 28.4 MUg/kg and a maximum concentration of 429 MUg/kg. In addition to penitrem A, other members of the group of penitrems, namely, penitrems B, C, D, E, and F, were for the first time quantitatively detected in food samples, although in lower concentrations and with lower incidence in comparison to penitrem A. Moreover, we report cytotoxic effects of all penitrems on two cell lines (HepG2 and CCF-STTG1). This clearly underlines their relevance and the importance to analyze food samples in order to get insights into the human exposure toward these mycotoxins. PMID- 29338237 TI - Reactivity of Metal Carbenes with Olefins: Theoretical Insights on the Carbene Electronic Structure and Cyclopropanation Reaction Mechanism. AB - Present work addresses the reactivity of several phenyl-substituted metal-carbene complexes with 4-methylstyrene by means of density functional theory OPBE simulations. Different paths that lead to cyclopropanation were explored and compared to the olefin metathesis mechanism. For this purpose, we chose four different catalysts: (i) the Grubbs second-generation olefin metathesis catalyst, (ii) a Grubs second-generation-like complex, in which ruthenium is replaced by iron, and (iii) two iron carbene complexes (a piano stool and a porphyrin iron carbene) that experimentally catalyze alkene cyclopropanation. Results suggest that the nature of the applying mechanism is very sensitive to the coordination around the metal center and the spin state of the metal-carbene complex. Cyclopropanation by open-shell metal-carbene complexes seems to preferentially proceed through a two-step radical mechanism, in which the two C-C bonds are sequentially formed (path C). Singlet-state carbenes proceed either through a direct attack of the olefin to the carbene (path D) when the formation of the metallacycle is not feasible or through a reductive elimination from the metallacyclobutane when this intermediate is accessible both kinetically and thermodynamically (path B). PMID- 29338238 TI - Paralithocins, Antimicrobial Peptides with Unusual Disulfide Connectivity from the Red King Crab, Paralithodes camtschaticus. AB - As part of an ongoing exploration of marine invertebrates as a source of new antimicrobial peptides, hemocyte extracts from the red king crab, Paralithodes camtschaticus, were studied. Three cationic cysteine (Cys)-rich peptides, named paralithocins 1-3, were isolated by bioassay-guided purification, and their amino acid sequences determined by Edman degradation and expressed sequences tag analysis. Disulfide bond mapping was performed by high-resolution tandem mass spectrometry. The peptides (38-51 amino acids in length) share a unique Cys motif composed of eight Cys, forming four disulfide bridges with a bond connectivity of (Cys relative position) Cys1-Cys8, Cys2-Cys6, Cys3-Cys5, and Cys4-Cys7, a disulfide arrangement that has not been previously reported among antimicrobial peptides. Thus, paralithocins 1-3 may be assigned to a previously unknown family of antimicrobial peptides within the group of Cys-rich antimicrobial peptides. Although none of the isolated peptides displayed antimicrobial activity against the target strains Escherichia coli, Pseudomonas aeruginosa, or Staphylococcus aureus, they inhibited the growth of several marine bacterial strains with minimal inhibitory concentrations in the 12.5-100 MUM range. These findings corroborate the hypothesis that marine organisms are a valuable source for discovering bioactive peptides with new structural motifs. PMID- 29338239 TI - Vinyl Grignard-Mediated Stereoselective Carbocyclization of Lactone Acetals. AB - A novel Ferrier-type carbocyclization is reported. It involves a carbohydrate derived lactone acetal synthesized from methyl alpha-d-glucopyranoside, which upon treatment with excess vinylmagnesium bromide provides a highly substituted carbocyclic product as a single stereoisomer. The yield is greatly increased when N,N,N',N'-tetramethylethylenediamine is added to the reaction mixture. Optimized reaction conditions have been applied to lactone acetals derived from other carbohydrates. Based on the obtained results, a possible reaction mechanism has been proposed. Furthermore, scalability of the reaction up to 15 g scale and derivatization of the carbocyclic product has been demonstrated, including the formation of a rare trans-bicyclo[4.3.0]nonene scaffold via a ring-closing metathesis. The structure of this and all carbocyclic products were confirmed by X-ray crystallographic analysis. PMID- 29338240 TI - BiKi Life Sciences: A New Suite for Molecular Dynamics and Related Methods in Drug Discovery. AB - In this paper, we introduce the BiKi Life Sciences suite. This software makes it easy for computational medicinal chemists to run ad hoc molecular dynamics protocols in a novel and task-oriented environment; as a notebook, BiKi (acronym of Binding Kinetics) keeps memory of any activity together with dependencies among them. It offers unique accelerated protein-ligand binding/unbinding methods and other useful tools to gain actionable knowledge from molecular dynamics simulations and to simplify the drug discovery process. PMID- 29338241 TI - Characterization of Macrophage Endogenous S-Nitrosoproteome Using a Cysteine Specific Phosphonate Adaptable Tag in Combination with TiO2 Chromatography. AB - Protein S-nitrosylation is a cysteine post-translational modification mediated by nitric oxide. An increasing number of studies highlight S-nitrosylation as an important regulator of signaling involved in numerous cellular processes. Despite the significant progress in the development of redox proteomic methods, identification and quantification of endogeneous S-nitrosylation using high throughput mass-spectrometry-based methods is a technical challenge because this modification is highly labile. To overcome this drawback, most methods induce S nitrosylation chemically in proteins using nitrosylating compounds before analysis, with the risk of introducing nonphysiological S-nitrosylation. Here we present a novel method to efficiently identify endogenous S-nitrosopeptides in the macrophage total proteome. Our approach is based on the labeling of S nitrosopeptides reduced by ascorbate with a cysteine specific phosphonate adaptable tag (CysPAT), followed by titanium dioxide (TiO2) chromatography enrichment prior to nLC-MS/MS analysis. To test our procedure, we performed a large-scale analysis of this low-abundant modification in a murine macrophage cell line. We identified 569 endogeneous S-nitrosylated proteins compared with 795 following exogenous chemically induced S-nitrosylation. Importantly, we discovered 579 novel S-nitrosylation sites. The large number of identified endogenous S-nitrosylated peptides allowed the definition of two S-nitrosylation consensus sites, highlighting protein translation and redox processes as key S nitrosylation targets in macrophages. PMID- 29338242 TI - In-Situ Biocatalytic Production of Trehalose with Autoinduction Expression of Trehalose Synthase. AB - We developed an in-situ biocatalytic process that couples autoinduction expression of trehalose synthase (TreS) and whole-cell catalysis for trehalose production. With lactose as the autoinducer, the activity of recombinant TreS in recombinant Escherichia coli was optimized through a visualization method, which resulted in a maximum value of 12 033 +/- 730 U/mL in pH-stat fed-batch fermentation mode. Meanwhile, the permeability of the autoinduced E. coli increased significantly, which makes it possible to be directly used as a whole cell biocatalyst for trehalose production, whereby the byproduct glucose can also act as an extra carbon source. In this case, the final yield of trehalose was improved to 90.5 +/- 5.7% and remained as high as 83.2 +/- 5.0% at the 10th batch, which is the highest value achieved using recombinant TreS. Finally, an integrated strategy for trehalose production was established, and its advantages compared to the traditional mode have been summarized. PMID- 29338243 TI - Metadynamics Enhanced Markov Modeling of Protein Dynamics. AB - Enhanced sampling techniques represent a versatile approach to account for rare conformational transitions in biomolecules. A particularly promising strategy is to combine massive parallel computing of short molecular dynamics (MD) trajectories (to sample the free energy landscape of the system) with Markov state modeling (to rebuild the kinetics from the sampled data). To obtain well distributed initial structures for the short trajectories, it is proposed to employ metadynamics MD, which quickly sweeps through the entire free energy landscape of interest. Being only used to generate initial conformations, the implementation of metadynamics can be simple and fast. The conformational dynamics of helical peptide Aib9 is adopted to discuss various technical issues of the approach, including metadynamics settings, minimal number and length of short MD trajectories, and the validation of the resulting Markov models. Using metadynamics to launch some thousands of nanosecond trajectories, several Markov state models are constructed that reveal that previous unbiased MD simulations of in total 16 MUs length cannot provide correct equilibrium populations or qualitative features of the pathway distribution of the short peptide. PMID- 29338244 TI - Synthesis and Reaction of ortho-Benzoquinone Monohemiaminals. AB - The preparation and reactions of ortho-benzoquinone monohemiaminals are described. The oxidative dearomatization of phenols bearing amino alcohol groups induced N-cyclization to afford ortho-benzoquinone monohemiaminals. The N cyclization stereoselectively affords the product when a chiral amino alcohol is used as the substituent. The chiral ortho-benzoquinone monohemiaminal undergoes stereoselective Diels-Alder reactions with electron-deficient alkenes, as expected, confirming the promising utility of ortho-benzoquinone monohemiaminals. PMID- 29338245 TI - One-Pot Synthesis of Benzo[b][1,4]oxazins via Intramolecular Trapping Iminoenol. AB - A highly atom-efficient "one-pot" protocol has been developed to construct multisubstituted 2-hydroxy-benzo[b][1,4]oxazins starting from N-(2 hydroxylaryl)enaminones. This procedure comprises a PIDA-mediated intramolecular iminoenol tautomer trapping reaction, followed by Et3N-promoted aerobic oxidative ring construction. In particular, an O2 molecule from air served as the oxygen source of the hydroxyl group in the titled products. This reaction proceeded smoothly at room temperature under air atmosphere and metal-free conditions. PMID- 29338246 TI - Non-Transition-Metal Catalytic System for N2 Reduction to NH3: A Density Functional Theory Study of Al-Doped Graphene. AB - The prevalent catalysts for natural and artificial N2 fixation are known to hinge upon transition-metal (TM) elements. Herein, we demonstrate by density functional theory that Al-doped graphene is a potential non-TM catalyst to convert N2 to NH3 in the presence of relatively mild proton/electron sources. In the integrated structure of the catalyst, the Al atom serves as a binding site and catalytic center while the graphene framework serves as an electron buffer during the successive proton/electron additions to N2 and its various downstream NxHy intermediates. The initial hydrogenation of N2 can readily take place via an internal H-transfer process with the assistance of a Li+ ion as an additive. In view of the recurrence of H transfer in the first step of N2 reduction observed in biological nitrogenases and other synthetic catalysts, this finding highlights the significance of heteroatom-assisted H transfer in the design of synthetic catalysts for N2 fixation. PMID- 29338247 TI - Lattice Models of Bacterial Nucleoids. AB - Mesoscale molecular modeling is providing a new window into the inner workings of living cells. Modeling of genomes, however, remains a technical challenge, due to their large size and complexity. We describe a lattice method for rapid generation of bacterial nucleoid models that integrates experimental data from a variety of biophysical techniques and provides a starting point for simulation and hypothesis generation. The current method builds models of a circular bacterial genome with supercoiled plectonemes, packed within the small space of the bacterial cell. Lattice models are generated for Mycoplasma genitalium and Escherichia coli nucleoids, and used to simulate interaction data. The method is rapid enough to allow generation of multiple models when analyzing structure/function relationships, and we demonstrate use of the lattice models in creation of an all-atom representation of an entire cell. PMID- 29338248 TI - Catalytic Oligopeptide Synthesis. AB - Waste-free catalytic assembly of alpha-amino acids is fueled by a multiboron catalyst that features a characteristic B3NO2 heterocycle, providing a versatile catalytic protocol wherein functionalized natural alpha-amino acid units are accommodated and commonly used protecting groups are tolerated. The facile dehydrative conditions eliminate the use of engineered peptide coupling reagents, exemplifying a greener catalytic alternative for peptide coupling. The catalysis is sufficiently robust to enable pentapeptide synthesis, constructing all four amide bond linkages in a catalytic fashion. PMID- 29338249 TI - Highly Sensitive and Wearable In2O3 Nanoribbon Transistor Biosensors with Integrated On-Chip Gate for Glucose Monitoring in Body Fluids. AB - Nanoribbon- and nanowire-based field-effect transistor (FET) biosensors have stimulated a lot of interest. However, most FET biosensors were achieved by using bulky Ag/AgCl electrodes or metal wire gates, which have prevented the biosensors from becoming truly wearable. Here, we demonstrate highly sensitive and conformal In2O3 nanoribbon FET biosensors with a fully integrated on-chip gold side gate, which have been laminated onto various surfaces, such as artificial arms and watches, and have enabled glucose detection in various body fluids, such as sweat and saliva. The shadow-mask-fabricated devices show good electrical performance with gate voltage applied using a gold side gate electrode and through an aqueous electrolyte. The resulting transistors show mobilities of ~22 cm2 V-1 s-1 in 0.1* phosphate-buffered saline, a high on-off ratio (105), and good mechanical robustness. With the electrodes functionalized with glucose oxidase, chitosan, and single-walled carbon nanotubes, the glucose sensors show a very wide detection range spanning at least 5 orders of magnitude and a detection limit down to 10 nM. Therefore, our high-performance In2O3 nanoribbon sensing platform has great potential to work as indispensable components for wearable healthcare electronics. PMID- 29338250 TI - Pickering Emulsion Formation of Paraffin Wax in an Ethanol-Water Mixture Stabilized by Primary Polymer Particles and Wax Microspheres Thereof. AB - Stable dispersions of paraffin wax droplets and their nano- and microspheres have broad applications. Despite intensive efforts, the production of uniform wax spheres remains a challenge. For their preparation, abundant surfactants and other additives are commonly used to stabilize the dispersions. These additives are hardly removable and entrain often adverse consequence in many applications, particularly in biological and medical applications, where microspheres with absolutely clean surface are preferred. We report here a novel process to prepare stable dispersion of wax droplets in a water-ethanol mixture with a narrow size distribution by simply shaking without any surfactants. The process is featured by using primary polymer particles (PPs) of poly(dodecene-trihydroxymethylpropane triacrylate) as a Pickering stabilizer. PPs were prepared by precipitation polymerization without any surfactant and stabilizer. By rapidly cooling the wax emulsion, solid wax spheres with good uniformity were obtained. Their size, between 50 and 480 MUm, was easily adjustable by changing the shaking rate, number of PPs, and particularly the size of PPs. The morphology of the wax spheres was examined by SEM, which showed that they were covered by a layer of PPs. The formation mechanism of the microspheres was also discussed on the basis of the adsorption energy of PPs on wax spheres, estimated from the corresponding contact angle of the solvent toward the PPs and the wax. This paper presents a novel pathway for the preparation of wax microspheres with only polymer particles without the need for any other additives. PMID- 29338251 TI - Delivery of Oxytocin to the Brain for the Treatment of Autism Spectrum Disorder by Nasal Application. AB - Oxytocin (OXT) is a cyclic nonapeptide, two amino acids of which are cysteine, forming an intramolecular disulfide bond. OXT is produced in the hypothalamus and is secreted into the bloodstream from the posterior pituitary. As recent studies have suggested that OXT is a neurotransmitter exhibiting central effects important for social deficits, it has drawn much attention as a drug candidate for the treatment of autism. Although human-stage clinical trials of the nasal spray of OXT for the treatment of autism have already begun, few studies have examined the pharmacokinetics and brain distribution of OXT after nasal application. The aim of this study is to evaluate the disposition, nasal absorption, and therapeutic potential of OXT after nasal administration. The pharmacokinetics of OXT after intravenous bolus injection to rats followed a two compartment model, with a rapid initial half-life of 3 min. The nasal bioavailability of OXT was approximately 2%. The brain concentration of OXT after nasal application was much higher than that after intravenous application, despite much lower concentrations in the plasma. More than 95% of OXT in the brain was directly transported from the nasal cavity. The in vivo stress-relief effect by OXT was observed only after intranasal administration. These results indicate that pharmacologically active OXT was effectively delivered to the brain after intranasal administration. In conclusion, the nasal cavity is a promising route for the efficient delivery of OXT to the brain. PMID- 29338252 TI - Orychophragines A-C, Three Biologically Active Alkaloids from Orychophragmus violaceus. AB - Orychophragines A-C (1-3), three new alkaloids with an novel 2-piperazinone-fused 2,4-dioxohexahydro-1,3,5-triazine skeleton, were isolated from the seeds of Orychophragmus violaceus. Their structures were established on the basis of spectroscopic analysis and X-ray crystallographic analysis. Orychophragines A (1) exhibited remarkable cytotoxicity against HepG2, A549, Hela, and HCT-116 cells with IC50 values of 7.73, 10.79, 11.91, and 9.93 MUM, respectively. Orychophragines C (3) showed moderate 60Co gamma radiation protection activity in HUVEC cells. A plausible biosynthetic pathway for 1-3 was proposed. PMID- 29338253 TI - Correction to Highly Efficient Retention of Polysulfides in "Sea-Urchin"-Like Carbon Nanotube/Nanopolyhedra Superstructures as Cathode Material for Ultralong Life Lithium-Sulfur Batteries. PMID- 29338254 TI - Editorial 2018. PMID- 29338255 TI - To Be Fibrils or To Be Nanofilms? Oligomers Are Building Blocks for Fibril and Nanofilm Formation of Fragments of Abeta Peptide. AB - To identify the key stages in the amyloid fibril formation we studied the aggregation of amyloidogenic fragments of Abeta peptide, Abeta(16-25), Abeta(31 40), and Abeta(33-42), using the methods of electron microscopy, X-ray analysis, mass spectrometry, and structural modeling. We have found that fragments Abeta(31 40) and Abeta(33-42) form amyloid fibrils in the shape of bundles and ribbons, while fragment Abeta(16-25) forms only nanofilms. We are the first who performed 2D reconstruction of amyloid fibrils by the Markham rotation technique on electron micrographs of negatively stained fragments of Abeta peptide. Combined analysis of the data allows us to speculate that both the fibrils and the films are formed via association of ring-shaped oligomers with the external diameter of about 6 to 7 nm, the internal diameter of 2 to 3 nm, and the height of ~3 nm. We conclude that such oligomers are the main building blocks in fibrils of any morphology. The interaction of ring oligomers with each other in different ways makes it possible to explain their polymorphism. The new mechanism of polymerization of amyloidogenic proteins and peptides, described here, could stimulate new approaches in the development of future therapeutics for the treatment of amyloid-related diseases. PMID- 29338256 TI - Palladium-Catalyzed Four-Component Cascade Reaction for the Synthesis of Highly Functionalized Acyclic O,O-Acetals. AB - A palladium-catalyzed four-component cascade reaction of carbon dioxide, amines, allenyl ethers, and aryl iodides has been developed for the first time. The novel reaction allows simultaneous construction of three different new bonds (C-N, C-O, and C-C) in a single step, affording an efficient method for the synthesis of a variety of highly functionalized acyclic O,O-acetals. Excellent chemo- and regioselectivity, wide substrate scope, and good functional group tolerance are features of the method. PMID- 29338257 TI - A Dynamic Protein-Protein Coupling between the TonB-Dependent Transporter FhuA and TonB. AB - Bacterial outer membrane TonB-dependent transporters function by executing cycles of binding and unbinding to the inner membrane protein TonB. In the vitamin B12 transporter BtuB and the ferric citrate transporter FecA, substrate binding increases the periplasmic exposure of the Ton box, an energy-coupling segment. This increased exposure appears to enhance the affinity of the transporter for TonB. Here, continuous wave and pulse EPR spectroscopy were used to examine the state of the Ton box in the Escherichia coli ferrichrome transporter FhuA. In its apo state, the Ton box of FhuA samples a broad range of positions and multiple conformational substates. When bound to ferrichrome, the Ton box does not extend further into the periplasm, although the structural states sampled by the FhuA Ton box are altered. When bound to a soluble fragment of TonB, the TonB-FhuA complex remains heterogeneous and dynamic, indicating that TonB does not make strong, specific contacts with either the FhuA barrel or the core region of the transporter. This result differs from that seen in the crystal structure of the TonB-FhuA complex. These data indicate that unlike BtuB and FecA, the periplasmic exposure of the Ton box in FhuA does not change significantly in the presence of substrate and that allosteric control of transporter-TonB interactions functions by a different mechanism than that seen in either BtuB or FecA. Moreover, the data indicate that models involving a rotation of TonB relative to the transporter are unlikely to underlie the mechanism that drives TonB-dependent transport. PMID- 29338258 TI - Nanoparticle-Cell Interactions: Surface Chemistry Effects on the Cellular Uptake of Biocompatible Block Copolymer Assemblies. AB - The development of nanovehicles for intracellular drug delivery is strongly bound to the understating and control of nanoparticles cellular uptake process, which in turn is governed by surface chemistry. In this study, we explored the synthesis, characterization, and cellular uptake of block copolymer assemblies consisting of a pH-responsive poly[2-(diisopropylamino)ethyl methacrylate] (PDPA) core stabilized by three different biocompatible hydrophilic shells (a zwitterionic type poly(2-methacryloyloxyethyl phosphorylcholine) (PMPC) layer, a highly hydrated poly(ethylene oxide) (PEO) layer with stealth effect, and an also proven nontoxic and nonimmunogenic poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA) layer). All particles had a spherical core-shell structure. The largest particles with the thickest hydrophilic stabilizing shell obtained from PMPC40-b PDPA70 were internalized to a higher level than those smaller in size and stabilized by PEO or PHPMA and produced from PEO122-b-PDPA43 or PHPMA64-b-PDPA72, respectively. Such a behavior was confirmed among different cell lines, with assemblies being internalized to a higher degree in cancer (HeLa) as compared to healthy (Telo-RF) cells. This fact was mainly attributed to the stronger binding of PMPC to cell membranes. Therefore, cellular uptake of nanoparticles at the sub 100 nm size range may be chiefly governed by the chemical nature of the stabilizing layer rather than particles size and/or shell thickness. PMID- 29338260 TI - Seco-Dendrobine-Type Alkaloids and Bioactive Phenolics from Dendrobium findlayanum. AB - Investigation of the 95% EtOH extract of stems of Dendrobium findlayanum afforded four new seco-dendrobines, findlayines A-D (1-4); two known dendrobines, dendrobine (5) and 2-hydroxydendrobine (6); and four new phenolic compounds, dendrofindlaphenols A-C (7, 9, and 10) and 6"-de-O-methyldendrofindlaphenol A (8). Compounds 1 and 2 are the first seco-dendrobines possessing a seven-membered lactam moiety, with 3 and 4 derived from the oxidative cleavage of the C-2-C-3 bond of dendrobine. The structures were established using spectroscopic methods and by comparison with literature data. The absolute configurations of 1-4 were confirmed via single-crystal X-ray diffraction data. Cytotoxic activity assays against HL-60, SMMC-7721, A-549, MCF-7, and SW480 human cancer cell lines revealed IC50 values ranging from 2.3 to 5.3 MUM for compound 7, from 19.4 to 34.4 MUM for 8, and from 49.4 to 96.8 MUg/mL for the EtOAc extract. An assay of the inhibition of NO production with RAW 264.7 cells indicated that 8 had an IC50 value of 21.4 MUM, and the EtOAc extract, 10.5 MUg/mL. The EtOAc extract possessed DPPH radical scavenging activity of 69.93% at 100 MUg/mL. PMID- 29338261 TI - Nature of the Three-Electron Bond. AB - We analyze the properties of 15 3-electron bonds, which include sigma-3-electron bonds, such as dihalide radical anions and di-noble gas radical cations, pi-3 electron-bonds as in hydrazine radical cations, and doubly-pi-(3e)-bonded species such as O2, FeO+, S2, etc. The primary analytical tool is the breathing-orbital valence-bond (BOVB) method, which enables us to quantify the charge shift resonance energy (RECS) of the three electrons, and the bond dissociation energies (De). BOVB is tested reliable against MRCI calculations. Our findings show that in all 3-electron bonds, none of the VB structures have by themselves any bonding. In fact, in each VB structure, the three electrons maintain Pauli repulsion, while the entire bonding energy arises from resonance due to the charge shift between the two or more constituent VB structures. Hence, 3e-bonds are charge shift bonds (CSBs). The CSB character is probed by calculating the Laplacian (L) of the 3e-bond. Thus, much like the CSBs in electron-pair bonds, such as F2 or the central bond in [1.1.1]propellane, here too L is positive, thus showing the excess kinetic energy of the shared density due to the Pauli repulsion in the 3-electron VB structures. The RECS values for 3-electron bonds are invariably larger than the corresponding bond energies. For the doubly-pi (3e)-bonded species, RECS is very large, exceeding 100 kcal mol-1. As such, it is fitting to conclude that sigma- and pi-3-electron-bonds find their natural place in the CSB family along with two-electron CSBs, with which they share identical energetic and topological characteristics. Experimental manifestations/tests of 3e-CSBs are proposed. PMID- 29338262 TI - Roasted Barley Extract Affects Blood Flow in the Rat Tail and Increases Cutaneous Blood Flow and Skin Temperature in Humans. AB - Roasted barley extract (RBE, "Mugicha") is a traditional Japanese beverage reported to improve blood viscosity and affect food functionality. RBE is suggested to contain 2,5-diketopiperazines, which are the functional component with neuroprotective and immunostimulatory effects that are produced in food through roasting. In this study, we investigated the effects of RBE on blood circulation, both clinically and in rats. At first, we confirmed five 2,5 diketopiperazine derivatives in RBE by LC-MS analysis. Secondarily, we revealed that RBE affects blood flow in the rat tail and compared the efficacy on rat tail blood flow among five 2,5-diketopiperazines in RBE. Especially, cyclo(d-Phe-l Pro) was the most effective in increasing blood flow in the rat tail. We also researched the mechanism of cyclo(d-Phe-l-Pro) with rat aorta study. As a result, we confirmed that cyclo(d-Phe-l-Pro) has an effect on vasodilatation through the release of nitric oxide in the vascular endothelium. Finally, we also confirmed that RBE affects cutaneous blood flow and increases skin temperature in humans. PMID- 29338263 TI - Use of a Promiscuous Glycosyltransferase from Bacillus subtilis 168 for the Enzymatic Synthesis of Novel Protopanaxatriol-Type Ginsenosides. AB - Ginsenosides are the principal bioactive ingredients of Panax ginseng and possess diverse notable pharmacological activities. UDP-glycosyltransferase (UGT) mediated glycosylation of the C6-OH and C20-OH of protopanaxatriol (PPT) is the prominent biological modification that contributes to the immense structural and functional diversity of PPT-type ginsenosides. In this study, the glycosylation of PPT and PPT-type ginsenosides was achieved using a promiscuous glycosyltransferase (Bs-YjiC) from Bacillus subtilis 168. PPT was selected as the probe for the in vitro glycodiversification of PPT-type ginsenosides using diverse UDP-sugars as sugar donors. Structural analysis of the newly biosynthesized products demonstrated that Bs-YjiC can transfer a glucosyl moiety to the free C3-OH, C6-OH, and C12-OH of PPT. Five PPT-type ginsenosides were biosynthesized, including ginsenoside Rh1 and four unnatural ginsenosides. The present study suggests flexible microbial UGTs play an important role in the enzymatic synthesis of novel ginsenosides. PMID- 29338264 TI - Quantum Interference Contribution to the Dipole Moment of Diatomic Molecules. AB - The interference energy partitioning analysis method developed by our group and used to study the nature of the chemical bond was extended to partition the electric dipole moment in quasi-classical and interference contributions. Our results show that interference participates in charge displacement in polar molecules, providing, directly or indirectly, a relevant contribution for the total dipole moment. A linear correlation was found between the interference contribution of the dipole moment from the bond electron group, MUINT(bond), and the difference of electronegativity of the atoms which form the bond, DeltaXAB. This interesting result reinforces the fact that electronegativity is not a property of an atom alone, but rather a property of the atom in the molecule and that DeltaXAB can only be associated with that part of the total charge displacement resulting from the formation of the chemical bond. The partitioning of the total dipole moment into quasi-classical and interference contributions provides new insights about the reasons for the failure of the DeltaXAB criterion in predicting the correct orientation of the dipole moment in several molecules. The results of the present work also bring additional evidence for the previously proposed mechanism of formation of polar bonds. PMID- 29338265 TI - Controlling Polyelectrolyte Adsorption onto Carbon Nanotubes by Tuning Ion-Image Interactions. AB - Understanding and controlling polyelectrolyte adsorption onto carbon nanotubes is a fundamental challenge in nanotechnology. Polyelectrolytes have been shown to stabilize nanotube suspensions through adsorbing onto the nanotube surface, and polyelectrolyte-coated nanotubes are emerging as building blocks for complex and addressable self-assembly. Conventional wisdom suggests that polyelectrolyte adsorption onto nanotubes is driven by specific chemical or van der Waals interactions. We develop a simple mean-field model and show that ion-image attraction significantly effects adsorption onto conducting nanotubes at low salt concentrations. Our theory suggests a simple strategy to selectively and reversibly functionalize carbon nanotubes on the basis of their electronic structures, which in turn modify the ion-image attraction. PMID- 29338266 TI - All-Solid-State Batteries with Thick Electrode Configurations. AB - We report the preparation of thick electrode all-solid-state lithium-ion cells in which a large geometric capacity of 15.7 mAh cm-2 was achieved at room temperature using a 600 MUm-thick cathode layer. The effect of ionic conductivity on the discharge performance was then examined using two different materials for the solid electrolyte. Furthermore, important morphological information regarding the tortuosity factor was electrochemically extracted from the capacity-current data. The effect of tortuosity on cell performance was also quantitatively discussed. PMID- 29338267 TI - Theory for the Liquid-Liquid Phase Separation in Aqueous Antibody Solutions. AB - This study presents the theory for liquid-liquid phase separation for systems of molecules modeling monoclonal antibodies. Individual molecule is depicted as an assembly of seven hard spheres, organized to mimic the Y-shaped antibody. We consider the antibody-antibody interactions either through Fab, Fab' (two Fab fragments may be different), or Fc domain. Interaction between these three domains of the molecule (hereafter denoted as A, B, and C, respectively) is modeled by a short-range square-well attraction. To obtain numerical results for the model under study, we adapt Wertheim's thermodynamic perturbation theory. We use this model to calculate the liquid-liquid phase separation curve and the second virial coefficient B2. Various interaction scenarios are examined to see how the strength of the site-site interactions and their range shape the coexistence curve. In the asymmetric case, where an attraction between two sites is favored and the interaction energies for the other sites kept constant, critical temperature first increases and than strongly decreases. Some more microscopic information, for example, the probability for the particular two sites to be connected, has been calculated. Analysis of the experimental liquid liquid phase diagrams, obtained from literature, is presented. In addition, we calculate the second virial coefficient under conditions leading to the liquid liquid phase separation and present this quantity on the graph B2 versus protein concentration. PMID- 29338268 TI - Predicting Surface Tensions of Surfactant Solutions from Statistical Mechanics. AB - The importance of surfactants to various industries necessitates a predictive understanding of their surface tension and adsorption behavior in terms of molecular characteristics. Previous models are highly empirical, require fitting parameters, and have limited applicability at various temperatures. Here, we provide a surface tension model based on statistical mechanics that (1) is thermodynamically consistent, (2) provides a higher predictive power, wherein surface tension can be calculated for any tail length, concentration, and temperature from molecular parameters, and (3) provides a physical understanding of the important molecular interactions at play. This model is applicable to both nonionic and ionic surfactants, where the effects of the electric double layer have been taken into account in the latter case. For nonionic surfactants, we were able to extend our model to predict dynamic surface tension as well. We have validated our model with tensiometry experiments for various surfactants, concentrations, and temperatures. In addition, we have validated our model with a diverse set of literature data, wherein agreement within a few mN M-1 and a correct prediction of phase change behavior is shown. The model could enable a more informed design of surfactant systems and serve as the theoretical basis for theory on more complex surfactant systems such as mixtures. PMID- 29338269 TI - Reactivity Toward Ag+: A General Strategy to Generate a New Emissive Center from NIR-Emitting Gold Nanoparticles. AB - We report a facile strategy for the transformation of single NIR-emitting AuNPs to dual-NIR-emitting bimetallic Ag@AuNPs based on the robust reactivity toward Ag(I) ions under mild conditions. The reactivities toward Ag(I) ions were found to be significantly different between visible- and NIR-emitting glutathione (GSH) coated AuNPs: the high GSH surface coverage on the 610 nm-emitting AuNPs resulted in a reversible interaction due to enough surface steric hindrance to resist Ag(I) ions from interaction with the Au(0) core, whereas the low GSH surface coverage on the 810 nm-emitting AuNPs led to both antigalvanic reaction and Ag(I) carboxylate shell formation on the surface of the AuNPs, which were responsible for the formation of a new emissive center at 705 nm. This strategy was also demonstrated to exhibit excellent generalization toward various NIR-emitting AuNPs with surface chemistries containing carboxyl groups, opening a new pathway of tailoring the optical properties of metallic NPs through surface reactivity. PMID- 29338270 TI - Effect of calcium on the microstructure and corrosion behavior of microarc oxidized Mg-xCa alloys. AB - Magnesium alloys are potential biodegradable implants for biomedical applications, and calcium (Ca) is one kind of ideal element being examined for magnesium alloys and biodegradable ceramic coatings owing to its biocompatibility and mechanical suitability. In this study, microarc oxidation (MAO) coatings were prepared on Mg-xCa alloys to study the effect of Ca on the microstructure and corrosion resistance of Mg-xCa alloys and their surface MAO coatings. The electrochemical corrosion behavior was investigated using an electrochemical workstation, and the degradability and bioactivity were evaluated by soaking tests in simulated body fluid (SBF) solutions. The corrosion products were characterized by scanning electron microscopy, x-ray diffractometry, and Fourier transform infrared spectrometry. The effects of Ca on the alloy phase composition, microstructure, MAO coating formation mechanism, and corrosion behavior were investigated. Results showed that the Mg-0.82Ca alloy and MAO coated Mg-0.82Ca exhibited the highest corrosion resistance. The number and distribution of Mg2Ca phases can be controlled by adjusting the Ca content in the Mg-xCa alloys. The proper amount of Ca in magnesium alloy was about 0.5-0.8 wt. %. The pore size, surface roughness, and corrosion behavior of microarc oxidized Mg-xCa samples can be controlled by the number and distribution of the Mg2Ca phase. The corrosion behaviors of microarc oxidized Mg-Ca in SBF solutions were discussed. PMID- 29338271 TI - Analytical, anthropometric and dietary factors associated with the development of fibrosis in patients with nonalcoholic fatty liver disease. AB - BACKGROUND: a prolonged non-alcoholic steatohepatitis (NASH) condition can lead to advanced stages of liver disease and the development of hepatocellular carcinoma. AIM: to evaluate analytical, anthropometric and dietary factors associated with the presence of fibrosis as this is the factor that most influences survival and evolution. METHODS: seventy-six patients with liver biopsy-diagnosed non-alcoholic fatty liver disease (NAFLD) were included. Biopsies were scored considering the NASH criteria of Kleiner. Analytical, anthropometric and dietary (survey) parameters were obtained. NAFLD-FS is a non invasive fibrosis index and was assessed for each patient. Leptin, adiponectin, resistin and TNF-alpha serum levels were determined. RESULTS: fifty-six patients were male (73.7%) and the mean age was 44.5 +/- 11.3 years of age (19-68). Thirty nine (51.3%) (F1-F2: 84.6%; F3-4: 15.4%) patients had fibrosis in the liver biopsy. Seventeen females (85%) had fibrosis versus 22 males (39%), which was statistically significant by univariate analysis (p < 0.01). Patients with advanced fibrosis were older, with lower platelet counts, lower serum albumin, greater homeostatic model assessment insulin resistance (HOMA-IR), lower dietary lipids percentage, higher serum leptin levels and higher NAFLD Fibrosis Score (NAFLD-FS) values. This index had a negative predictive value of 98% and a positive predictive value of 60% for the detection of fibrosis. Variables independently associated with fibrosis (logistic regression) included male gender (protective factor) (0.09, 95% CI 0.01-0.7; p < 0.05) and HOMA-IR (1.7, 95% CI, 1.03-2.79; p < 0.05). CONCLUSIONS: gender and HOMA-IR were the only independent factors associated with fibrosis. NAFLD-FS could be considered as an accurate scoring system to rule out advanced fibrosis. PMID- 29338272 TI - Morphologic assessment of mandibular anterior teeth root canal using CBCT. AB - OBJECTIVE: The aim of this study was to evaluate the number and morphological characteristics of the roots and root canals in mandibular anterior teeth, using cone beam computed tomography. METHODS AND MATERIALS: In this cross-sectional study, 1053 anterior mandibular teeth from 200 CBCT scans were evaluated. The teeth were completely developed and should have had no fillings in the root or crown. The teeth were investigated in terms of the number of roots and root canals, the location of the apical foramen, the distance of the apical foramen to the anatomical apex, root length, crown length, dilacerations and the type of canals according to Vertucci's classification. RESULTS: 87.9% of teeth had one root canal and of all of the teeth, three canines (0.3%) were found that had two roots. In 80.3% (n: 848) of cases the foramen apical location was central, then the buccal (9.3%), lingual (3.9%), distal (3.8%), and mesial (2.7%). The type of root canals, according to Vertucci's classification, with respect to prevalence, included type I (88.2%), type III (8.1%), type II (3.3%), type V (0.3%), and type VI (0.1%), respectively. In terms of the characteristics investigated, bilateral symmetry was observed. Dilaceration was not seen in any of the teeth. CONCLUSION: The root canal morphology of mandibular anterior teeth has great diversity that may differ between different races, and should be considered by all dentists in order to achieve the best dental treatment. PMID- 29338273 TI - Adverse drug reactions of non-opioid and opioid analgesics reported to Croatian national authority from 2007 to 2014. AB - OBJECTIVE: Adverse drug reactions (ADRs) are commonly observed in the health services because of system weaknesses and individual errors. Analgesics are widely used and it can be expected that with the increased use one can expect increased number of ADRs of analgesics. The aim of this study was to analyze ADRs of non-opioid and opioid analgesics reported to the Croatian Agency for Medicinal Products and Medical Devices (HALMED) from 2007 to 2014. METHODS: HALMED provided data on generic drug name, year of the ADR report, type of report, institution, reporting person, patient's age, sex and ADR type. RESULTS: In the analyzed period 796 ADRs of analgesics were reported, of which 367 (46%) were serious ADRs. Number of ADR reports was continuously increasing during the analyzed period. There were 20 analgesics that had >=5 reports, making 597 (75%) of all ADR reports for analgesics. The most common adverse reaction reports of those 20 analgesics referred to individual drugs (n=16; 80%). Most of the ADR reports were filed by physicians (n=257; 43%), followed by pharmacists (n=252; 42%). Most side effects (n=572; 96%) were reported spontaneously through appropriate forms by patients or health professionals. ADRs were most commonly reported in women (n=352; 59%) and most of them have occurred in adults (n=354; 59%). The most common ADRs of opioid and non-opioid analgesics have been reported on the skin and mucous membranes. Most serious ADRs were result of action of opioid analgesics. CONCLUSION: Number of ADR reports in Croatia is continuously increasing and a considerable number of them refers to serious ADRs. To keep better track of medications and ADRs it is necessary to educate and encourage health professionals and patients in reporting side effects. PMID- 29338274 TI - Frequency and correlation of lip prints, fingerprints and ABO blood groups in population of Sriganganagar District, Rajasthan. AB - OBJECTIVE: To investigate the frequency and uniqueness of different lip print patterns, fingerprint patterns in relation to gender and ABO Rh blood groups among a semi-urban population of Sriganganagar, Rajasthan. MATERIALS AND METHODS: The study was conducted on 1200 healthy volunteers aged 18-30 years. The cheiloscopic and dermatographic data of each subject were obtained and were analysed according to the Suzuki and Tsuchihashi and Henry systems of classification, respectively. Two forensic experts analyzed the patterns independently. The ABO Rh blood group was also recorded for each subject. The Chi square statistical analysis was done and tests were considered significant when p value <0.001 and Cohen kappa test was applied to analyze inter-observer reliability. RESULTS: The B+ blood group was noted as most common in both genders while least common were A- among males and AB- in females. Type II lip pattern was most predominant while the least common was Type I' in males and Type I' and Type V in females. The UL fingerprint pattern was the most common, while RL was least noted in both genders. All the fingerprint patterns showed correlation with different lip print patterns. A correlation was found between different blood groups and lip print patterns except Type I (vertical) lip pattern. A positive correlation was observed between all the blood groups and fingerprint patterns, except for RL pattern. CONCLUSION: There is an association between lip print patterns, fingerprint patterns and ABO blood groups in both the genders. Thus, correlating the uniqueness of these physical evidences sometimes helps the forensic team members in accurate personal identification or it can at least narrow the search for an individual where there are no possible data referring to the identity of the subject. PMID- 29338275 TI - Metformin use associated with protective effects for ocular complications in patients with type 2 diabetes - observational study. AB - OBJECTIVE: The aim was to study the association of the use of an oral antihyperglycemic agent metformin with the presence of ocular complications in patients with type 2 diabetes (T2D). METHODS: Medical records were reviewed for 234 patients with diagnosed T2D. 81.2% (n=190) patients were using metformin and 18.8% (n=44) using other oral antihyperglycemic agents. Plasma glucose concentration, glycated haemoglobin, and the presence of ocular complications in patients treated with metformin were compared to those in patients treated with other oral antihyperglycemic agents. RESULTS: Ocular complications occurred in 65 patients (27.8%). Patients treated with metformin had fewer ocular complications compared to patients treated with other oral antihyperglycemic agents (chi2=19.985; p<0.0001). After adjustment for gender, age, duration of T2D, serum concentration of cholesterol, smoking, body mass index and presence of other diseases, treatment with metformin decreased the odds of both glaucoma (OR=0.14, 95% CI: 0.03-0.57, p=0.006) and diabetic retinopathy (OR=0.33, 95% CI: 0.14-0.82, p=0.017) compared with other oral antihyperglycemic agents. CONCLUSION: Our results suggest that metformin may have a protective effect on ocular complications, especially glaucoma, in patients with T2D. The effects of metformin either regarding prevention of ocular complications or ocular complications already developed in patients with T2D, should be further investigated. PMID- 29338276 TI - Evaluation of the water sorption of luting cements in different solutions. AB - OBJECTIVE: To evaluate and compare the water sorption of three luting cements in three different solutions: distilled water and artificial saliva with different pH values (7.4 and 3.0). MATERIALS AND METHODS: Resin-modified glass-ionomer cement (GC Fuji Plus) and two resin cements (Multilink Automix and Variolink II) were used. A total of 45 specimens - 15 specimens (15x1 mm) for each cement were prepared according to ISO standard 4049:2009. The water sorptions of the cements were calculated by weighing the specimens before and after immersion and desiccation. RESULTS: . Nonparametric statistic methods were applied. GC Fuji Plus cement showed significantly higher values of water sorption in all three solutions of both resin cements (p<0.009) and significantly higher values of sorption in artificial saliva pH 3.0. Multilink Automix showed significantly higher values of water sorption compared with Variolink II in artificial saliva pH 7.4, and higher values of sorption in this solution compared with pH value 3.0. CONCLUSION: Water sorption values are mainly influenced by the proportion of hydrophilic matrix, the type and composition of filler, and the pH value of solutions. PMID- 29338277 TI - Assessment of inpatient psychiatric readmission risk among patients discharged on an antipsychotic polypharmacy regimen: A retrospective cohort study. AB - OBJECTIVE: Patients are frequently prescribed multiple antipsychotic medications, leading to higher healthcare costs and increased risk for side effects. The efficacy of multiple versus single antipsychotics to prevent acute relapse, measured by incidence of inpatient readmission, is investigated in Arizona, USA. METHOD: A retrospective chart review compared socio-demographic and clinical data from 1,010 patients discharged on a single and 377 discharged on multiple antipsychotic medications. Case management records were reviewed for readmission within one year of discharge. RESULTS: Younger age, diagnosis of Schizophrenia or Schizoaffective Disorder, prescription of mood stabilizer, shorter length of stay, and discharge to residential treatment or crisis recovery unit were associated with multiple antipsychotics at discharge. Readmission rates of the single (13.7%) versus multiple (15.9%) antipsychotic groups were not statistically different (p=0.286). Logistic regression analysis established that only age (younger) and the prescription of a mood stabilizer at discharge were significant predictors for increased risk for readmission (p=0.010 and p=0.049, respectively). A Cox survival analysis supported these findings. CONCLUSIONS: Concomitant antipsychotic polypharmacy at discharge did not reduce readmission risk over a one-year period. Given the increased risk of side effects and financial costs of polypharmacy, this study did not provide evidence to support this practice. Strikingly, only two variables predicted readmission risk, younger age and prescription of mood stabilizer. Although practitioners should follow practice guidelines more closely to prevent unnecessary exposure to potentially lethal side effects of antipsychotic polypharmacy, further studies are needed to better identify patients at high risk for readmission. PMID- 29338278 TI - The effects of interprofessional diabetes education on the knowledge of medical, dentistry and nursing students. AB - OBJECTIVES: Interprofessional teamwork is best attained through education that promotes mutual trust and effective communication. The primary aim of the study was to evaluate the impact of interprofessional learning on knowledge about diabetes. METHODS: The cross-sectional study included students of medicine, dentistry and nursing at the Faculty of Medicine Foca, Bosnia and Herzegovina. The students were randomly allocated into one of two groups. Group 1 attended an interprofessional course on diabetes while group 2 was divided into three subgroups and each of the subgroups attended an uniprofessional diabetes course. The measuring instrument used in the course in order to assess the participants' knowledge about diabetic care was a test containing multiple-choice questions about diabetes. The Interprofessional Questionnaire was used to explore the attitudes, views, values and beliefs of students regarding interprofessional education (IPE). RESULTS: No statistically significant difference in total score on the test was found between the groups at baseline, but at follow-up the difference was highly statistically significant (F=10.87; p=0.002). The students from Group 1 had better results (21.82 points), compared to Group 2 (18.77 points). The statistically significant difference was observed in mean values (t= 3.997; p=0.001), between Groups 1 and 2; the students from Group 1 obtained 20.42 points, which is considered to indicate a respectively positive self-assessment of communication and teamwork skills. However, Group 2 indicated a negative self assessment of communication and teamwork skills. CONCLUSION: The findings suggest that IPE activities may provide health profession students with valuable collaborative learning opportunities. PMID- 29338279 TI - The chondrocoracoideus muscle: A rare anatomical variant of the pectoral area. AB - OBJECTIVE: The study adds important information regarding the descriptive anatomy of a very rarely reported unilateral chondrocoracoideus muscle (of Wood). Additionally it highlights the concomitant muscular and neural alterations. CASE REPORT: The current case presents the occurrence of a chondrocoracoideus muscle situated left-sided, as an extension of the abdominal portion of the pectoralis major muscle (PM). The chondrocoracoideus coexisted with a contralateral atypical PM, partially blended with the clavicular fibers of the deltoid muscle. There was an accessory head of the biceps brachii while the palmaris longus was absent on the right side of a 78-year-old Greek male cadaver. CONCLUSION: The above mentioned muscular abnormalities are shown as disturbances of embryological pectoral muscle development, and their documentation is essential in order to increase awareness among clinicians of their potential impact on the diagnosis and treatment of several pathologies. PMID- 29338280 TI - Variable skeletal anatomical features of acromegaly in the skull and craniocervical junction. AB - OBJECTIVE: This study adds important information regarding the morphological alterations caused by growth hormone hypersecretion in the skull and craniocervical junction (CCJ). A variably asymmetric skull due to acromegaly coexists with expansion of the paranasal sinuses and multiple Wormian bones. CASE REPORT: A pathologically asymmetric dry skull of a European male, aged 38 years at death, with cranial vault and skull base thickening is described. The extensive paranasal sinus pneumatization caused a generalized thinning of the bony walls. The sphenoid sinus expanded intraorbitally, leading to sella enlargement. The orbital asymmetry coexisted with platybasia and hypoplasia of the occipital condyles and the odontoid process. Facial skeleton elongation and mandibular overgrowth were combined with prognathism, malocclusion and overbite. CONCLUSION: Skull and CCJ alterations are of paramount importance when selecting the surgical approach, if surgery is indicated. Consecutively, detailed preoperative evaluation and planning is essential. During surgery, skilled and experienced neurosurgeons recognize anatomical landmarks, use neuronavigation and micro-instrumentation in order to remain on the midline avoiding any potential lethal vascular injury. PMID- 29338281 TI - Severe vertebral erosion by chronic contained rupture of an abdominal aortic aneurysm. AB - No abstract available. PMID- 29338282 TI - Spontaneous closure of a full thickness macular hole. AB - No abstract available. PMID- 29338283 TI - Intussuscepted Meckel's diverticulum within its own lumen. AB - No abstract available. PMID- 29338284 TI - Healing invisible wounds - have we done enough to help the victims of wartime rape? AB - No abstract available. PMID- 29338285 TI - Response to whether the definition of the term "children born of war" and vulnerabilities of children from recent conflict and post-conflict settings should be broadened. AB - No abstract available. PMID- 29338286 TI - Reflections on the definition and categorization of "Children Born of War". AB - No abstract available. PMID- 29338288 TI - Transcranial magnetic stimulation (TMS) safety: a practical guide for psychiatrists. AB - OBJECTIVES: Repetitive transcranial magnetic stimulation (rTMS) is increasingly being utilised as a treatment option for depression, and with this comes a need for a practical review of safety issues intended for clinicians. This article provides an overview of the current literature regarding safety issues with rTMS for depression, and provides recommendations for clinical practice. CONCLUSIONS: Overall, rTMS is a well-tolerated treatment with common side effects (such as headache or local pain at the site of stimulation) being mild. Severe adverse effects, such as seizures, hearing impairment or mania, are uncommon. Certain populations, including adolescents, pregnant women, older adults and those with metal/electronic implants, require special consideration when prescribing and monitoring treatment courses. With adequate assessment and monitoring processes, rTMS can be administered safely in a large proportion of depressed patients. PMID- 29338289 TI - A systematic review of risk factors for methamphetamine-associated psychosis. AB - OBJECTIVE: Chronic methamphetamine use is commonly associated with the development of psychotic symptoms. The predictors and correlates of methamphetamine-associated psychosis are poorly understood. We sought to systematically review factors associated with psychotic symptoms in adults using illicit amphetamine or methamphetamine. METHODS: A systematic literature search was performed on MEDLINE (OVID), PsycINFO and EMBASE databases from inception to 8 December 2016. The search strategy combined three concept areas: methamphetamine or amphetamine, psychosis and risk factors. Included studies needed to compare adults using illicit methamphetamine or amphetamine, using a validated measure of psychosis, on a range of risk factors. Of 402 identified articles, we removed 45 duplicates, 320 articles based on abstract/title and 17 ineligible full-text articles, leaving 20 included studies that were conducted in 13 populations. Two co-authors independently extracted the following data from each study: country, setting and design; participant demographic and clinical details; sample size; measure/s used and measures of association between psychosis outcomes and risk factors. Individual study quality was assessed using a modified Newcastle-Ottawa Scale, and strength of evidence was assessed using GRADE criteria. RESULTS: Frequency of methamphetamine use and severity of methamphetamine dependence were consistently found to be associated with psychosis, and sociodemographic factors were not. There was inconsistent evidence available for all other risk factors. Individual study quality was low-moderate for the majority of studies. Heterogeneity in study outcomes precluded quantitative synthesis of outcomes across studies. CONCLUSION: The most consistent correlates of psychotic symptoms were increased frequency of methamphetamine use and dependence on methamphetamine. The findings of this review highlight the need for targeted assessment and treatment of methamphetamine use in individuals presenting with psychosis. PMID- 29338290 TI - Barking Our Way Into the Year of the Dog: Public Health Benefits and Challenges. PMID- 29338291 TI - Indications for Surgical Repair of Type 1 Laryngeal Cleft. AB - OBJECTIVES: Type 1 laryngeal cleft (T1LC) is a congenital deficiency in the posterior glottis, resulting in a communication between the hypopharynx and glottis. No consensus treatment paradigm exists for timing and criteria for patient selection for surgical repair. Our goal is to assess whether patient characteristics can help predict improvement after surgery. METHODS: After Institutional Review Board exemption, a retrospective chart review was performed for patients undergoing surgery to diagnose a T1LC. Charts were examined for age, presenting symptoms, comorbidities, pre/postoperative videoflouroscopic swallow study reports, and outcomes. RESULTS: Ninety-seven patients with clinical suspicion for T1LC underwent direct laryngoscopy and bronchoscopy, and 63 (64%) were diagnosed with a T1LC. Twenty-two patients (63%) undergoing surgery achieved clinical or radiographic improvement. There was no difference in average age, aspiration, or penetration between clinical improvement and no improvement groups. Of 13 patients with comorbidities that increase their risk of aspiration, 12 were significantly improved. There were 5 complications, which were managed conservatively. CONCLUSIONS: Our experience supports the repair of T1LC repair at time of diagnostic laryngoscopy if satisfactory improvement is not noted with conservative treatment. This should be performed without segregation for age, comorbidities, or degree of dysphagia. Our technique is performed with minimal complications and achieves satisfactory results. PMID- 29338293 TI - Betrixaban: A New Oral Factor Xa Inhibitor for Extended Venous Thromboembolism Prophylaxis in High-Risk Hospitalized Patients. AB - OBJECTIVE: To review the pharmacology, pharmacokinetics, efficacy, and safety of the factor Xa (FXa) inhibitor betrixaban for extended-duration prophylaxis of acute medically ill patients with venous thromboembolism (VTE) risk factors. DATA SOURCES: A MEDLINE/PubMed (January 1990 to October 2017) search was conducted using the following keywords: betrixaban, PRT054021, FXa inhibitor, novel oral anticoagulant, NOAC, direct oral anticoagulant, DOAC, and target specific oral anticoagulant, TSOAC. References of identified articles were searched by hand for additional relevant citations. STUDY SELECTION AND DATA EXTRACTION: We included English-language articles evaluating betrixaban pharmacology, pharmacokinetics, efficacy, or safety in human subjects for VTE prophylaxis. DATA SYNTHESIS: Betrixaban is a FXa inhibitor that decreases prothrombinase activity and thrombin generation. Betrixaban efficacy and safety has been compared with that of enoxaparin for prophylaxis of VTE in acutely ill medical patients. In the APEX trial and substudies, extended-duration betrixaban was superior in efficacy to standard-duration enoxaparin in patients at high risk for VTE, including those with elevated D-dimer levels (>=2* upper limit of normal) and of older age (>=75 years). Betrixaban is noninferior to enoxaparin in rates of major bleeding, but the former is associated with more clinically relevant nonmajor bleeding events. CONCLUSION: Betrixaban is the first oral agent approved for extended-duration VTE prophylaxis in acutely ill hospitalized patients. Extended-duration thromboprophylaxis with betrixaban reduces the risk of VTE compared with standard duration thromboprophylaxis with enoxaparin but is associated with increased risk of bleeding. PMID- 29338292 TI - Temporalis Fascia Transplantation for Sulcus Vocalis and Vocal Fold Scar: Long Term Outcomes. AB - OBJECTIVE: Sulcus vocalis and vocal fold scar involve derangement of the superficial lamina propria of the vocal fold, which results in significant dysphonia. Many options exist for treatment, most of which have unsatisfactory and unpredictable outcomes. Autologous transplantation of temporalis fascia into the vocal fold (ATFV) has the potential to be a better treatment option, but long term outcomes have not been well studied. METHODS: Retrospective chart review and patient survey. Twenty-one patients diagnosed with vocal fold scar or sulcus vocalis and treated with ATFV with at least 1-year follow-up were included. Voice Handicap Index 10 (VHI-10) questionnaires were collected preoperatively and 6 months postoperatively. Patients were reached at the time of the study to complete another VHI-10 and a Likert scale survey. RESULTS: The mean decrease in VHI-10 scores between preoperation and 6 months postoperation was 8.35 ( P < .001). From preoperation to the time of the study (average 44 months; range, 12 72 months), the VHI decreased 13.53 ( P < .001). Eighty-eight percent of patients reported they would recommend this surgery to others with the same diagnosis. Only 1 minor self-limited complication occurred. CONCLUSION: Autologous transplantation of temporalis fascia into the vocal fold for the treatment of vocal fold scar and sulcus vocalis is a safe surgery with good long-term outcomes and high patient satisfaction. PMID- 29338294 TI - The importance of clinical observation: A case of subtle tardive dyskinesia with paliperidone palmitate. PMID- 29338295 TI - A Scoping Review of Inclusive Out-of-School Time Physical Activity Programs for Children and Youth With Physical Disabilities. AB - The objective of this study was to comprehensively evaluate inclusive out-of school time physical activity programs for children/youth with physical disabilities. A search of the published literature was conducted and augmented by international expertise. A quality appraisal was conducted; only studies with quality ratings >=60% informed our best practice recommendations. Seventeen studies were included using qualitative (n = 9), quantitative (n = 5), or mixed (n = 3) designs. Programs had a diversity of age groups, group sizes, and durations. Most programs were recreational level, involving both genders. Rehabilitation staff were the most common leaders. Outcomes focused on social skills/relationships, physical skill development, and psychological well-being, with overall positive effects shown in these areas. The best practice recommendations are consistent with an abilities-based approach emphasizing common group goals and interests; cooperative activities; mastery-oriented, individualized instruction; and developmentally appropriate, challenging activities. Results indicate that inclusive out-of-school time physical activity programs are important for positive psychosocial and physical skill development of children/youth with physical disabilities. PMID- 29338296 TI - Tips and tricks in axillary cannulation. PMID- 29338297 TI - Unusual case of left atrial myxoma with gastroesophageal junction adenocarcinoma. AB - Cardiac myxomas are rare tumors. Esophageal adenocarcinomas are common tumors of the gastrointestinal tract. Simultaneous occurrence of these tumors has not been reported. A 52-year-old gentleman presented to our hospital with dysphagia and was diagnosed with esophageal adenocarcinoma. Routine echocardiography discovered a cardiac tumor in the left atrium. The cardiac tumor was surgically removed and biopsy confirmed a myxoma. We removed the cardiac tumor as the first step and then initiated neoadjuvant chemotherapy. It is ideal to constitute a multidisciplinary team to decide on the course of treatment in such cases. PMID- 29338298 TI - Coronary and arch hybrid surgery in a patient with infrarenal aortic occlusion. AB - A 65-year-old gentleman with claudication underwent contrast-enhanced computed tomography. The scan showed occlusion of the infrarenal abdominal aorta and a 6.0 * 3.7 cm saccular zone-3 arch aneurysm. The left ventricular ejection fraction was 35% and a coronary angiogram revealed triple-vessel disease. In view of the patient's high risk with EuroSCORE II 20.34%, coronary artery surgery was combined with hybrid type I arch aneurysm repair. An endovascular stent was delivered in an antegrade manner. Open heart surgery and a hybrid type I arch intervention can be performed simultaneously through a midline sternotomy approach. PMID- 29338299 TI - Mitral valve replacement via a left thoracotomy in dextrocardia and situs solitus. AB - Dextrocardia with situs solitus and severe mitral regurgitation is a rare clinical presentation which posse a surgical challenge and requires specific preoperative planning. A 54-year-old women with this anatomy, multiple thoracic procedures, and severe mitral valve regurgitation underwent successful mitral valve replacement with a 27-mm mechanical prosthesis through a left thoracotomy under ventricular fibrillation, on the basis of computed tomography findings. We emphasize the importance of preoperative planning and a surgical approach through a left thoracotomy and under ventricular fibrillation. PMID- 29338300 TI - Penetrating injury of the ascending aorta complicating a sternal biopsy. AB - Bone marrow aspiration and trephine biopsy are considered safe procedures. Some serious but rare adverse events directly attributable to these procedures have been related in a few reports in the literature. We report a rare case of ascending aortic injury following a sternal trephine biopsy. PMID- 29338301 TI - Coronary artery perforation complicating percutaneous coronary intervention. AB - Background Coronary artery perforation is a rare but serious complication of percutaneous coronary interventions. We aimed to evaluate the management of coronary artery perforation in Sulaimaniyah, Iraq. Methods A retrospective review of our medical records from 2009 to 2016 identified 24 patients (15 males, 9 females) with coronary artery perforation. Mean age was 60 +/- 9.2 years (range 40-74 years). Standard diagnostic angiography or percutaneous interventions were performed. Coronary artery perforation was diagnosed by worsening of symptoms, hypotension, or angiographic evidence of type I (extraluminal crater), II (myocardial or pericardial blushing), or III (contrast streaming or cavity spilling) perforation. Stenosis was graded as >85%, 60%-85%, or < 60%. Once coronary artery perforation was diagnosed, heparin was reversed, antiplatelets were stopped, and pericardial effusions were aspirated. Type II and III coronary artery perforations were sealed using covered stents or repeated brief balloon inflations. Results The most frequently injured artery was the left anterior descending ( n = 14, 58.3%). Type II and III coronary artery perforations constituted the majority ( n = 18, 75%). Thirteen (54.2%) patients had severe coronary stenosis. Perforations were caused by stents ( n = 10), angioplasty wires ( n = 8), and balloons ( n = 6). Fifteen perforations were sealed with covered stents, 2 by balloon inflations, and 7 resolved spontaneously. Pericardial effusion was drained in 13 (54.2%) patients. No patient required surgery, and none died. Conclusion The low rate and early management of coronary artery perforations, mainly by covered stents, were the hallmarks of this study. PMID- 29338303 TI - Evaluation of Preprocedural Laboratory Parameters as Predictors of Drug-Eluting Stent Restenosis in Coronary Chronic Total Occlusion Lesions. AB - This retrospective, single-center study assessed the prognostic value of several emerging inflammatory markers as predictors of in-stent restenosis (ISR) after drug-eluting stent implantation for coronary chronic total occlusion (CTO) lesions. Consecutive patients (n = 416) who underwent successful percutaneous coronary intervention (PCI) for documented CTO lesions and with follow-up angiography were enrolled. Preprocedural high-sensitivity C-reactive protein (hsCRP), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), and red cell distribution width (RDW) were analyzed. At mean follow-up of 14.4 +/- 3.3 months, ISR occurred in 72 patients. Compared with the non-ISR group, preprocedural hsCRP level, PLR, NLR, and RDW were significantly higher in the ISR group. The ISR group also had significantly greater proportions of patients with diabetes and smoking history, lower estimated glomerular filtration rate, higher low-density lipoprotein cholesterol (LDL-C) level and neutrophil count, longer stent length, and higher rate of severe dissection. In multivariate analysis, NLR (odds ratio [OR]: 3.110; 95% confidence interval [CI], 2.102-4.063; P < .001) and PLR (OR: 1.029; 95% CI, 1.016-1.143; P < .001) were independent predictors of ISR, along with LDL-C level and stent length. In conclusion, higher preprocedural NLR and PLR levels were independent risk factors for the development of ISR in patients who underwent PCI for CTO lesions. PMID- 29338302 TI - Neurotransmitter Pathway Genes in Cognitive Decline During Aging: Evidence for GNG4 and KCNQ2 Genes. AB - BACKGROUND/RATIONALE: Experimental studies support the role of neurotransmitter genes in dementia risk, but human studies utilizing single variants in candidate genes have had limited success. METHODS: We used the gene-based testing program Versatile Gene-based Association Study to assess whether aggregate variation across 6 neurotransmitter pathways influences risk of cognitive decline in 8159 cognitively normal elderly (>=65 years old) adults from 3 community-based cohorts. RESULTS: Common genetic variation in GNG4 and KCNQ2 was associated with cognitive decline. In human brain tissue data sets, both GNG4 and KCNQ2 show higher expression in hippocampus relative to other brain regions; GNG4 expression decreases with advancing age. Both GNG4 and KCNQ2 show highest expression in fetal astrocytes. CONCLUSION: Genetic variation analyses and gene expression data suggest that GNG4 and KCNQ2 may be associated with cognitive decline in normal aging. Gene-based testing of neurotransmitter pathways may confirm and reveal novel risk genes in future studies of healthy cognitive aging. PMID- 29338304 TI - Investigation of the use of external aluminium targets for portal imaging in a medical accelerator using Geant4 Monte Carlo simulation. AB - OBJECTIVE: To install a low-Z target on the wedge tray mount of a medical linear accelerator to create a new image beam and to confirm image contrast enhancement. METHODS: Experimental low-energy photon beams were produced with the linac running in the 6 MeV electron mode and with a low-Z target installed on the wedge tray mount [denoted 6 MeV (low-Z target)]. Geant4 Monte Carlo simulation was performed to analyse the energy spectrum and image contrast of a 6 MeV (low-Z target) beam. This study modelled the 6 MeV (low-Z target) beam and the 6 MV (megavoltage) radiotherapy photon beam and verified model validity by measurement. In addition, a contrast phantom was modelled to quantitatively compare the image contrasts of the 6 MeV (low-Z target) beam and the 6 MV radiotherapy photon beam. A low-Z target was fabricated to generate low-energy photons (25-150 keV) from incident electrons, and a portal image of the Alderson RANDO phantom was acquired using a clinical linear accelerator for qualitative analysis. RESULTS: The measured and calculated percentage depth dose of the 6 MV photon and 6 MeV (Al) beams were consistent within 1.5 and 1.6%, respectively, and calculated lateral profiles of the 6 MV photon beam and the 6 MeV (Al) beam were consistent with the measured results within 1.5 and 1.9%, respectively. Although low-energy photons (25-150 keV) of the 6 MV photon beam were only 0.3%, the Be, C, and Al low-Z targets, but not the Ti target, generated 34.4 to 38.5% low-energy photons. In 5 to 20 cm water phantoms, contrast of the 6 MeV (Al) beam was approximately 1.16 times greater than that of the 6 MV beam. The contrasts of 6 MeV (Al) and 6 MV photon beams in the 20 cm water phantom were ~34% lower than those in the 5 cm water phantom. 6 MeV (Al)/CR (computed radiography) images of the human body phantom were more vivid and detailed than 6 MV/EPID (electronic portal imaging device) and 6 MeV (Al)/EPID images. CONCLUSION: The experimental beam with a low-Z target, which was simply installed on the wedge tray mount of the radiotherapy linear accelerator, generated significantly more low-energy photons than the 6 MV radiotherapy photon beam, and provided better quality portal images. Advances in knowledge: This study shows that, unlike the existing low-Z beam studies, a low-Z target can be installed outside the head of a linear accelerator to improve portal image quality. PMID- 29338306 TI - Biomarkers for assessing the effectiveness of immunotherapy in breast cancer. PMID- 29338305 TI - Safety and feasibility of prostate stereotactic ablative radiotherapy using multimodality imaging and flattening filter free. AB - OBJECTIVE: To investigate feasibility and safety of stereotactic ablative radiotherapy in the management of prostate cancer while employing MR/CT fusion for delineation, fiducial marker seeds for positioning and Varian RapidArc with flattening filter free (FFF) delivery. METHODS: 41 patients were treated for low intermediate risk prostate cancer with initial prostate-specific antigen of <=20 ng ml-1, Gleason score 6-7. Patients had MR/CT fusion for delineation of prostate +/-seminal vesicles. CT/MR fusion images were used for delineation and planned using flattening filter free modality. Verification on treatment was cone beam CT imaging with fiducial markers for matching. Patients had Radiation Therapy Oncology Group scoring for genitourinary and gastointestinal symptoms at baseline, week 4, 10 and 18. RESULTS: Clinically acceptable plans were achieved for all patients, all plans achieved the objective clinical target volume D99% >= 95%, and for planning target volume D95% >= 95%. Rectum dose constraints were met for 95.1% for V18 Gy <= 35%, 80% V28 Gy <= 10%. A total of 32 (78.0%) plans achieved all rectum dose constraints. Grade 1 acute genitourinary symptoms were 53.7% of patients at baseline, 90.2% [95% CI (76.8-97.3%)] (p = 0.0005) at treatment 5, falling to 78.0% (62.4-89.4%) at week 4, and 75.0% (58.8-87.3%) by week 10 and 52.5% (36.1-68.5%) (p = 1.00) at week 18. Acute gastrointestinal symptoms were 5% at baseline, 46.3% [95% CI (30.7-62.6%)] at treatment 5, week 4 43.9% [95% CI (28.5-60.3%)], week 10 25.0% (11.1-42.3%), and declined slightly by week 18 [-20.095% CI (12.7-41.2)] p = 0.039. Overall 75.6% (31/41) of patients experienced Grade 1-2 toxicity during or after treatment. CONCLUSION: This planning and delivery technique is feasible, safe and efficient. A homogeneous dose can be delivered to prostate with confidence, whilst limiting high dose to nearby structures. The use of this technology can be applied safely within further randomized study protocols. Advances in knowledge: Multimodality imaging for delineation and linac-based image-guided RT with FFF for the treatment of prostate stereotactic ablative radiotherapy. PMID- 29338307 TI - The impact of prehabilitation on post-surgical complications in patients undergoing non-urgent cardiovascular surgical intervention: Systematic review and meta-analysis. AB - Introduction Cardiac surgery is an aggressive procedure, inducing a great level of stress and disturbance to the homeostasis of the organism and underlying several postoperative complications. Surgical prehabilitation comprises pre operative physical conditioning designed to improve the physiological and functional capacities of the individual, prepare the organism for surgical stress and reduce the risk of postoperative morbidity. Aim This systematic review and meta-analysis is aimed at evaluating the ability of prehabilitation to prevent post-surgical complications in cardiac patients. Methods We selected studies conducted among patients who were waiting for non-urgent cardiac surgical procedures, where a comparison between prehabilitation and standard treatment was made. A total of 3650 possible studies were researched, of which eight were selected for inclusion. Results A reduction in the number of complications in the groups submitted to prehabilitation (odds ratio = 0.41; 95% confidence interval (CI): 0.28-0.62; p < 0.001; I2 = 0%) was observed, as well as a significant increase in maximal inspiratory pressure (standard mean difference (SMD) = 0.66; 95% CI: 0.35-0.96; p < 0.001; I2 = 58%), a non-significant decrease in the length of stay (SMD = -0.56; 95% CI: -1.13, 0.01; p = 0.05; I2 = 93%), a non-significant increase in the distance walked by the intervention group in the six-minute walk test (SMD = 0.89; 95% CI -0.06, 1.84; p = 0.07) and a lack of effect on mechanical ventilation time (SMD = -0.03; 95% CI: -0.22, 0.16; p = 0.75; I2 = 0%). Conclusion Prehabilitation reduces the number of post-surgical complications and increases maximal inspiratory pressure; a reduction in the length of stay and an improvement of functional capacities are also probable. PMID- 29338308 TI - Calcium supplement is a major concern for patients with cardiovascular diseases. PMID- 29338311 TI - Sinophobia. Anxiety, violence, and the making of Mongolian identity, by Franck Bille. PMID- 29338309 TI - Oral microbiota reduce wound healing capacity of epithelial monolayers, irrespective of the presence of 5-fluorouracil. AB - Oral mucositis is still one of the most painful side effects of chemotherapeutic treatment and a mounting body of evidence suggests a key role for the oral microbiome in mucositis development. However, the underlying mechanisms remain elusive. In this work, we have investigated the interactions between the host, the microbiome, and chemotherapeutic treatments in more detail. The effect of 5 fluorouracil, commonly inducing mucositis, was assessed on a co-culture model that consists of an epithelial cell layer and a biofilm derived from oral microbiota from different types of samples (saliva, buccal swabs and tongue swabs) and donors (healthy individuals and patients suffering from mucositis). After 24 h co-incubation, all oral microbial samples were found to reduce wound healing capacity with 26 +/- 15% as compared with untreated condition. Compared with saliva and tongue samples, buccal samples were characterized by lower bacterial cell counts and hence higher wound healing capacity. For samples from healthy individuals, an inverse correlation was observed between bacterial cell counts and wound healing capacity, whereas for patients suffering from mucositis no correlation was observed. Moreover, patient-derived samples had a less diverse microbial community and higher abundances of pathogenic genera. No major impact of 5-fluorouracil on wound healing capacity or the composition of the microbiome was seen at physiologically relevant concentrations in the mouth. In conclusion, bacterial cell count is inversely correlated with wound healing capacity, which emphasizes the importance of oral hygiene during oral wound healing in healthy individuals. However, future research on extra measures besides oral hygiene is needed to assure a good wound healing during mucositis, as for patients the bacterial composition seems also crucial. The direct effect of 5-fluorouracil on both the microbiome and wound healing is minimal, pointing to the importance of the host and its immune system in chemotherapy-induced microbial shifts. Impact statement Chemotherapy-induced oral mucositis has a major impact on the quality of life of patients. The additional costs and treatment time associated with this pathology are significant. Although the pathology of the disease is well understood, the role and importance of oral microbiota currently are less clear. In this study, we focused on the effect of oral microbiota on wound healing, the final phase of oral mucositis, during 5-FU exposure. We show that the bacterial load and composition have a major impact on the healing process in contrast to 5 FU which only marginally slows down healing. This emphasizes the importance of good oral health care during oral mucositis to minimize bacterial load around the oral lesions. However, since we show that also the composition of the oral microbiome plays a role in wound recovery, the identification of specific pathogenic species or their metabolites might be worthwhile to allow proper treatment. PMID- 29338310 TI - Therapy-Induced Plasticity in Chronic Aphasia Is Associated with Behavioral Improvement and Time Since Stroke. AB - Cortical reorganization after stroke is thought to underlie functional improvement. Patterns of reorganization may differ depending on the amount of time since the stroke or the degree of improvement. We investigated these issues in a study of brain connectivity changes with aphasia therapy. Twelve individuals with chronic aphasia participated in a 6-week trial of imitation-based speech therapy. We assessed improvement on a repetition test and analyzed effective connectivity during functional magnetic resonance imaging of a speech observation task before and after therapy. Using structural equation modeling, patient networks were compared with a model derived from healthy controls performing the same task. Independent of the amount of time since the stroke, patients demonstrating behavioral improvement had networks that reorganized to be more similar to controls in two functional pathways in the left hemisphere. Independent of behavioral improvement, patients with remote infarcts (2-7 years poststroke; n = 5) also reorganized to more closely resemble controls in one of these pathways. Patients with far removed injury (>10 years poststroke; n = 3) did not show behavioral improvement and, despite similarities to the normative model and overall network heterogeneity, reorganized to be less similar to controls following therapy in a distinct right-lateralized pathway. Behavioral improvement following aphasia therapy was associated with connectivity more closely approximating that of healthy controls. Individuals who had a stroke more than a decade before testing also showed plasticity, with a few pathways becoming less like controls, possibly representing compensation. Better understanding of these mechanisms may help direct targeted brain stimulation. PMID- 29338312 TI - Assessment of Parental Acceptability and Preference for Behavioral Interventions for Feeding Problems. AB - The present study evaluates the treatment acceptability and preference for behavioral interventions for feeding problems with parents of children with Autism Spectrum Disorder and other developmental disabilities. The impact of behavioral severity on acceptability and preference was also evaluated by comparing results of parents who responded with respect to a vignette of a child with food refusal with those who responded to a vignette of a child with food selectivity. Overall, parents rated differential reinforcement of alternative behavior as the most preferred and most acceptable strategy across both food selectivity and food refusal groups. Escape extinction was the least acceptable and least preferred across both groups, and the severity of the behavior had no impact on acceptability or preference scores. Implications for future research on the social validity of feeding interventions are provided. PMID- 29338313 TI - Rapport Building and Instructional Fading Prior to Discrete Trial Instruction: Moving From Child-Led Play to Intensive Teaching. AB - Discrete trial instruction (DTI) is effective for teaching skills to children with autism spectrum disorder (ASD). Although effective, instructional settings can become aversive resulting in avoidant and escape-related behaviors. Given the significant social impairments associated with ASD, interventions that promote social approach and reduce avoidance are warranted. Rapport building or "pairing" the therapist and teaching setting with highly preferred activities prior to instruction can reduce problematic behaviors during subsequent instruction. However, the path from child-led play to DTI is not well established. Instructional fading may assist in bridging this gap. Four participants with ASD who were beginning an intensive behavioral intervention program were included in the current study. Participants progressed through nine stages of pairing and instructional fading with minimal problem behavior and high percentages of in seat and close proximity to the therapist. Guidelines for incorporating rapport building strategies prior to intensive teaching with children with ASD are proposed. PMID- 29338314 TI - Inflammatory Cytokines in the Papillary Tips and Urine of Nephrolithiasis Patients. AB - INTRODUCTION: Intrarenal inflammation has been implicated in the pathogenesis of nephrolithiasis, with prior work showing increased urine levels of IL-6, IL-8, and CCL-2 in stone patients. However, no studies have assessed for inflammation in the renal papillae. We sought to characterize novel papillary tip and urinary biomarkers in stone patients. MATERIALS AND METHODS: Ninety-two patients with nephrolithiasis undergoing percutaneous nephrolithotomy were enrolled. Papillary tip biopsies, kidney urine, and bladder urine were collected, as well as voided urine from eight healthy volunteers. Quantitative polymerase chain reaction was performed to measure inflammatory gene expression. RESULTS: Initial 84-gene polymerase chain reaction array revealed significant elevation of several cytokines in stone patients vs controls (fold change 2.3-694). Twenty-four genes were selected for final analysis. In 41 pairs of urine samples, levels of CCL5, CD40, FasL, RIPK2, SELE, TLR3, and IL-15 were significantly elevated in kidney vs bladder urine (p0.0001-0.04). In 23 triplets of samples, expression of these cytokines plus CCL2, CCL7, CCR2, CSF1, CXCL9, and CXCL10, was significantly greater in papillary tips vs urine samples (p0.001-0.05). Cytokine elevation was independent of maximum postoperative heart rate, respiratory rate, temperature, leukocyte count, urinary tract infection in the past year, presence or absence of antibiotics at the time of surgery, and stone composition (all p > 0.05). CONCLUSION: Expression of CCL-2, CCL-5, CCL-7, CCR-2, CD40, CSF1, CXCL-9, CXCL 10, Fas-L, RIPK2, SELE, and TLR-3 is markedly elevated in the papillary tips, kidney urine, and bladder urine of nephrolithiasis patients. Cytokine elevation was independent of signs of systemic inflammation. These findings further support the role of inflammation in nephrolithiasis and imply that the inflammatory process likely begins at the renal papillae. These may represent novel biomarkers of stone disease, which may be useful in basic nephrolithiasis research, disease diagnosis, and prognosis. PMID- 29338316 TI - Retroareolar masses and intraductal abnormalities detected on screening ultrasound: can biopsy be avoided? AB - : To investigate the malignancy rate of retroareolar masses and intraductal abnormalities discovered in asymptomatic females during screening whole breast ultrasound (US-S) and determine if biopsy can be avoided. METHODS:: This is a HIPAA compliant retrospective study. Our radiology electronic medical records were searched for the phrases "retroareolar mass" or "intraductal mass" combined with "screening whole breast ultrasound" performed between 10/1/2009 and 5/30/2015. Inclusion criteria included retroareolar masses in asymptomatic females with normal mammography, mammographically dense breast tissue and imaging or biopsy follow-up. RESULTS:: 1136 charts were reviewed. 87 BI-RADS 3 and 4 retroareolar findings were included in final analysis. The average lesion size was 9.5 mm (range 4-28 mm). 47/87 lesions were classified as BI-RADS 3 and 40/87 BI-RADS 4. Of the 47 BI-RADS 3 lesions, 36 were stable on follow-up; 6 benign lesions were biopsied at patients' request; and 5 biopsied due to suspicious interval change on follow-up imaging, including 4 benign lesions and a 5 mm Grade 2 ductal carcinoma in situ . 3/40 BI-RADS 4 lesions were not biopsied and stable at follow-up; 37/40 lesions underwent benign biopsy. The malignancy rate of BI RADS 3 and 4 lesions was 2.1% [CI (0.4-11.1)] and 0% [CI (0.0-8.8)], respectively. The overall combined malignancy rate was 1/87 [1.1%, CI (0.2-6.2)]. CONCLUSION:: The malignancy rate for BI-RADS 3 and 4 retroareolar masses and intraductal abnormalities detected on US-S is low (<2%). ADVANCES IN KNOWLEDGE:: Careful imaging surveillance in lieu of biopsy of these lesions may be appropriate in asymptomatic females with negative mammography. PMID- 29338317 TI - Cosmos, gods and madmen: frameworks in the anthropologies of medicine, edited by Roland Littlewood and Rebecca Lynch. PMID- 29338315 TI - The chronic ischaemic cardiovascular disease ESC Pilot Registry: Results of the six-month follow-up. AB - Aim Chronic ischaemic cardiovascular disease (CICD) remains a leading cause of morbidity and mortality worldwide. The CICD Pilot Registry enrolled 2420 patients across 10 European Society of Cardiology countries prospectively to describe characteristics, management strategies and clinical outcomes in this setting. We report here the six-month outcomes. Methods and results From the overall population, 2203 patients were analysed at six months. Fifty-eight patients (2.6%) died after inclusion; 522 patients (23.7%) experienced all-cause hospitalisation or death. The rate of prescription of angiotensin-converting enzyme inhibitors, beta-blockers and aspirin was mildly decreased at six months (all P < 0.02). Patients who experienced all-cause hospitalisation or death were older, more often had a history of non-ST-segment elevation myocardial infarction, of chronic kidney disease, peripheral revascularisation and/or chronic obstructive pulmonary disease than those without events. Independent predictors of all-cause mortality/hospitalisation were age (hazard ratio (HR) 1.17, 95% confidence interval (CI) 1.07-1.27) per 10 years, and a history of previous peripheral revascularisation (HR 1.45, 95% CI 1.03-2.03), chronic kidney disease (HR 1.31, 95% CI 1.0-1.68) or chronic obstructive pulmonary disease (HR 1.42, 95% CI 1.06-1.91, all P < 0.05). We observed a higher rate of events in eastern, western and northern countries compared to southern countries and in cohort 1. Conclusion In this contemporary European registry of CICD patients, the rate of severe clinical outcomes at six months was high and was influenced by age, heart rate and comorbidities. The medical management of this condition remains suboptimal, emphasising the need for larger registries with long-term follow-up. Ad-hoc programmes aimed at implementing guidelines adherence and follow-up procedures are necessary, in order to improve quality of care and patient outcomes. PMID- 29338318 TI - Perceptions of patient-provider communication and receipt of mental health treatment among older adults with depressive symptoms. AB - OBJECTIVES: This study aimed to: (1) determine if and how perceptions towards healthcare providers differ between older adults with and without clinically signifcant depressive symptoms (CSDS), and (2) assess whether perceptions towards providers are associated with receipt of mental health treatment among older adults with CSDS. METHODS: Data from the 2013 and 2014 Medical Expenditure Panel Survey were used to examine CSDS prevalence, receipt of mental health treatment, and perceptions of provider communication among community-dwelling adults >= age 65 (N = 6,936) using four of the 'How Well Doctors Communicate' composite items from the Consumer Assessment of Healthcare Providers and Systems(CAHPS). Multivariate logistic regression was used. RESULTS: CSDS are associated with greater odds of having 'poor' perceptions of provider communication on all four CAHPS communication measures. Perceptions of provider communication are similar among older adults with CSDS who received and did not receive mental health treatment, except on an item measuring a provider's ability to explain information in ways patients understand. CONCLUSION: Older adults with CSDS have more negative perceptions of the quality of their communication with healthcare providers than their peers. Healthcare systems should consider how to accommodate these patients' unique needs and communication preferences to ensure receipt of quality care. PMID- 29338320 TI - Effect of a group medical clinic for veterans with diabetes on body mass index. AB - Objective To assess the impact of a group medical clinic designed for patient with type 2 diabetes mellitus and hypertension on body mass index. Methods Using data from a randomized trial of 239 veterans with type 2 diabetes mellitus, we performed a secondary analysis using analysis of covariance mixed models to explore the effect of a 12-month group medical clinic intervention on change in body mass index vs. usual care. In an exploratory subgroup analysis, we compared change in body mass index between treatment arms stratified by whether patients had >0.5% reduction in hemoglobin A1c at 12 months. Results Baseline body mass index was 33.5 kg/m2. At 12 months, there was no significant difference in change in body mass index between treatment arms (estimate=-0.02, 95% CI -0.51 to 5.05; P = 0.94); body mass index increased by approximately 0.20 points in both groups. There was also no significant difference in change in body mass index between treatment arms by whether or not patients had >0.5% reduction in hemoglobin A1c (estimate=-0.14, 95% CI -1.21 to -0.92; P = 0.79). Discussion Improved glycemic control was not associated with improved body mass index in the group medical clinic intervention. Given their positive effects on other outcomes, group medical clinics for patients with type 2 diabetes mellitus may be more beneficial if focus is shifted towards weight loss. PMID- 29338319 TI - Clinical evaluation of circulating miR-548a-3p and -20a expression in malignant pleural mesothelioma patients. AB - AIM: miRNAs may act as promising diagnostic and prognostic biomarkers of mesothelioma. This study integrates serum miR-548a-3p and miR-20a expression based on in silico data analysis followed by clinical validation in malignant mesothelioma patients (malignant pleural mesothelioma [MPM]). PATIENTS & METHODS: Serum miR-548a-3p and miR-20a level was assessed in the serum of patients with MPM, chronic asbestos exposure and healthy volunteers by quantitative real-time PCR. RESULTS: The expression of serum miR-548a-3p and miR-20a was positive in 91.6 and 96.7% MPM patients, respectively. Both miRNAs were able to segregate between cases and controls. The sensitivity of the combined chosen serum miRNAs reached 100% in the diagnosis of MPM. CONCLUSION: The current work revealed that sera miR-548a-3p and miR-20a may serve as promising novel diagnostic tools for MPM. PMID- 29338321 TI - Are wishes for death or suicidal ideation symptoms of depression in older adults? AB - OBJECTIVE: Clinicians may question whether thoughts of being better off dead are normal consequences of aging or symptoms of depression. We examine whether thoughts of suicide are as strongly linked to depression severity in older adults as they are in other age groups. METHODS: Cross-sectional cohort study. Participants included 509,945 outpatients >18 years old from four large integrated healthcare systems in the Mental Health Research Network who completed 1.2 million Patient Health Questionnaires (PHQ) and had data to calculate Charlson Comorbidity Index scores from 2010 through 2012. The PHQ8 estimated depression severity, while suicidal ideation was measured using the 9th item of the PHQ. Data were abstracted from a Virtual Data Warehouse. RESULTS: In older adult patients, suicidal ideation was strongly associated with depression severity. Older adults who had at least moderately-severe depression (PHQ8 >=15) were 48 times more likely (95% CI: 42.8-53.8) to report suicidal ideation than those with minimal or mild symptoms of depression (PHQ8 <10) after adjustment for all other variables in the model, including medical comorbidity burden. CONCLUSIONS: Depression severity was by far the strongest predictor of suicidal ideation in older adult patients. Older patients with suicidal ideation should be screened for depression. PMID- 29338322 TI - Associations of mindfulness with depressive symptoms and well-being in older adults: the moderating role of neuroticism. AB - OBJECTIVE: To investigate whether observed interactions of mindfulness with the personality trait neuroticism extend to older adults and to aspects of psychological functioning other than depressive symptoms, and whether effects of mindfulness training in this population depend on levels of neuroticism. METHOD: We performed a secondary analysis of data from a randomized controlled trial of Mindfulness-Based Stress Reduction (MBSR) for community-dwelling older adults. We investigated whether neuroticism moderates associations of dispositional mindfulness with various aspects of psychological and physical functioning at baseline, as well as effects of MBSR on these outcomes. RESULTS: Significant two way interactions showed that greater mindfulness was associated with fewer depressive symptoms and less negative affect at baseline in individuals with average or higher levels of neuroticism. In contrast, mindfulness was associated with greater positive affect and vitality and fewer physical symptoms regardless of the level of neuroticism. There were no effects of MBSR on these outcomes at any level of neuroticism. CONCLUSION: Mindfulness may be more protective against psychological ill-being in older adults with higher levels of neuroticism, but conducive to positive psychological and physical well-being regardless of this personality trait. The potential moderating role of neuroticism should be further evaluated in studies of mindfulness-based interventions in older adults. PMID- 29338323 TI - Psychosocial interventions for people with dementia: a synthesis of systematic reviews. AB - OBJECTIVES: Over the last 10 years there has been a multitude of studies of psychosocial interventions for people with dementia. However, clinical services face a dilemma about which intervention should be introduced into clinical practice because of the inconsistency in some of the findings between different studies and the differences in the study qualities and trustworthiness of evidence. There was a need to provide a comprehensive summary of the best evidence to illustrate what works. METHODS: A review of the systematic reviews of psychosocial interventions in dementia published between January 2010 and February 2016 was conducted. RESULTS: Twenty-two reviews (8 physical, 7 cognitive, 1 physical/cognitive and 6 other psychosocial interventions) with a total of 197 unique studies met the inclusion criteria. Both medium to longer term multi-component exercise of moderate to high intensity, and, group cognitive stimulation consistently show benefits. There is not sufficient evidence to determine whether psychological or social interventions might improve either mood or behaviour due to the heterogeneity of the studies and interventions included in the reviews. CONCLUSION: There is good evidence that multi-component exercise with sufficient intensity improves global physical and cognitive functions and activities of daily living skills. There is also good evidence that group-based cognitive stimulation improves cognitive functions, social interaction and quality of life. This synthesis also highlights the potential importance of group activities to improve social integration for people with dementia. Future research should investigate longer-term specific outcomes, consider the severity and types of dementia, and investigate mechanisms of change. PMID- 29338324 TI - Effect of Vertical or Beveled Chondral Defect Creation on Rim Deformation and Contact. AB - Objective To determine biomechanical effects of knee cartilage defect perimeter morphology based on cartilage strain and opposing subchondral bone contact. Design Articular cartilage defects were created in 5 bovine femoral condyles: group 1, 45 degrees inner bevel with 8-mm rim; group 2, vertical with 8-mm rim; and group 3, 45 degrees outer bevel with 8-mm base. Samples were placed into a custom-machined micro-computed tomography tube and subjected to 800 N of axial loading. DICOM data were used to calculate cartilage thickness 4 and 6 mm from the center, distance between tibial cartilage surface and femoral subchondral bone, and contact width between tibial cartilage and subchondral bone. Strain 4 mm from the center and both absolute and change in distance (mm) to subchondral bone were compared between groups 1 and 2 using paired t tests. Strain at 6 mm and distance changed, loaded distance, and contact width (mm) were compared between groups using the Friedman test with post hoc analysis using Wilcoxon signed rank test. Results No significant differences in rim strain were noted between groups 1 and 2 at 4 mm ( P = 0.10) and between groups 1, 2, and 3 at 6 mm ( P = 0.247) from the defect center. The loaded distance was significantly different between groups 1 and 3 ( P = 0.013). No significant change in distance to the subchondral bone was found between groups ( P = 0.156). The difference in subchondral bone contact area approached but did not reach significance ( P = 0.074). Conclusion When debriding focal articular cartilage defects, establishment of an inner bevel decreases tissue deformation and contact with opposing subchondral bone. PMID- 29338325 TI - Comparative Evaluations of Randomly Selected Four Point-of-Care Glucometer Devices in Addis Ababa, Ethiopia. AB - BACKGROUND: Point-of-care glucometer (PoCG) devices play a significant role in self-monitoring of the blood sugar level, particularly in the follow-up of high blood sugar therapeutic response. The aim of this study was to evaluate blood glucose test results performed with four randomly selected glucometers on diabetes and control subjects versus standard wet chemistry (hexokinase) methods in Addis Ababa, Ethiopia. METHOD: A prospective cross-sectional study was conducted on randomly selected 200 study participants (100 participants with diabetes and 100 healthy controls). Four randomly selected PoCG devices (CareSens N, DIAVUE Prudential, On Call Extra, i-QARE DS-W) were evaluated against hexokinase method and ISO 15197:2003 and ISO 15197:2013 standards. RESULTS: The minimum and maximum blood sugar values were recorded by CareSens N (21 mg/dl) and hexokinase method (498.8 mg/dl), respectively. The mean sugar values of all PoCG devices except On Call Extra showed significant differences compared with the reference hexokinase method. Meanwhile, all four PoCG devices had strong positive relationship (>80%) with the reference method (hexokinase). On the other hand, none of the four PoCG devices fulfilled the minimum accuracy measurement set by ISO 15197:2003 and ISO 15197:2013 standards. In addition, the linear regression analysis revealed that all four selected PoCG overestimated the glucose concentrations. CONCLUSIONS: The overall evaluation of the selected four PoCG measurements were poorly correlated with standard reference method. Therefore, before introducing PoCG devices to the market, there should be a standardized evaluation platform for validation. Further similar large-scale studies on other PoCG devices also need to be undertaken. PMID- 29338326 TI - Diabetes mellitus and atrial remodelling in patients with paroxysmal atrial fibrillation: Role of electroanatomical mapping and catheter ablation. AB - Complex fractionated atrial electrograms (CFAEs) are related to atrial fibrosis, but their ablation has not yet shown superiority. The aim of the study was to compare, in terms of clinical outcome, two strategies of paroxysmal atrial fibrillation (AF) ablation in patients with type 1 diabetes mellitus (DM): pulmonary vein isolation (PVI) vs. PVI + CFAEs. Compared to an historical population of patient with paroxysmal AF and without DM, a higher percentage of patients with DM showed more than 25% of atrial area interested by CFAEs (study population, 58% vs historical group, 15%; p < 0.05). In PVI group, recurrences rate was similar in patients with HbA1c ? 7.5% vs HbA1c > 7.5% (30% vs 22%; p = not significant), but a greater AF burden was observed in patients with HbA1c > 7.5% (6 +/- 2 vs 1 +/- 2; p < 0.05). In hazard ratios analysis PVI+CFAEs seems more effective than PVI alone in patients with HbA1c > 7.5% (hazard ratio, 1.28; p < 0.05), more than 25 years from DM diagnosis (hazard ratio, 1.25; p < 0.05) and more than five AF episodes/year (hazard ratio, 1.2; p < 0.05). Type 1 DM patients had complex atrial 'substrate', as documented by wider CFAEs areas. Despite this, 1-year follow-up recurrence rate was similar between two ablation approaches (PVI 27% vs. PVI+CFAEs 21%; p = not significant). In our study, only specific subgroups, like patients with disglycaemic state (HbA1c > 7.5%), long diabetes mellitus history and high AF burden, benefit from PVI+ CFAEs approach. PMID- 29338327 TI - Respiratory-gated PET/CT for pulmonary lesion characterisation-promises and problems. AB - 2-deoxy-2-(18Fluorine)-fluoro-D-glucose (FDG) PET/CT is an integral part of lung carcinoma staging and frequently used in the assessment of solitary pulmonary nodules. However, a limitation of conventional three-dimensional PET/CT when imaging the thorax is its susceptibility to motion artefact, which blurs the signal from the lesion resulting in inaccurate representation of size and metabolic activity. Respiratory gated (four-dimensional) PET/CT aims to negate the effects of motion artefact and provide a more accurate interpretation of pulmonary nodules and lymphadenopathy. There have been recent advances in technology and a shift from traditional hardware to more streamlined software methods for respiratory gating which should allow more widespread use of respiratory-gating in the future. The purpose of this article is to review the evidence surrounding four-dimensional PET/CT in pulmonary lesion characterisation. PMID- 29338328 TI - Avoidance, meaning and grief: psychosocial factors influencing engagement in HIV care. AB - Although the introduction of antiretroviral therapy has rendered HIV a chronic illness, inconsistent engagement in HIV care by key populations limits its public health impact. Poor engagement in care is especially prevalent among vulnerable populations with mental health and substance use disorders. Beyond structural and health system considerations, psychosocial factors may present challenges to sustained engagement. We conducted a qualitative study using in-depth interviews with 31 primarily African American, urban-based individuals, many with past or current drug use and mental disorders, living with HIV. Participants identified several psychosocial barriers that detract from their motivation to attend appointments and take medication. These included mental distress or detachment over a lack of purpose in life; denial about the need to be engaged in care; insufficient trust in the efficacy of care or the health system; deaths of loved ones leading to bereavement or loss of social support; and engagement in specific avoidance behaviors like drugs and alcohol. The study findings suggest that more comprehensive HIV care, which integrates mental health and substance abuse services in order to enhance meaning and address coping and grief, may be important. Considering these services in addition to improving the logistical components of care such as cues/reminders, accessibility, and patient-provider communication may improve intervention packages. PMID- 29338329 TI - Making a university community more dementia friendly through participation in an intergenerational choir. AB - A dementia friendly community is one that is informed about dementia, respectful and inclusive of people with dementia and their families, provides support, promotes empowerment, and fosters quality of life. This study presents data from four cohorts of undergraduate college students and people with dementia and their family members, using an intergenerational choir as the process through which to begin to create a dementia friendly community. This was accomplished by breaking down the stereotypes and misunderstandings that young adults have about people with dementia, thus allowing their commonalities and the strengths of the people living with dementia to become more visible. Data were gathered for each cohort of students through semi-structured open-ended questions on attitudes about dementia and experiences in the choir, collected at three points over 10 weeks of rehearsals. Data about their experiences in the choir were collected from each cohort of people with dementia and their family members through a focus group. Results across all four cohorts showed in the students: changed attitudes, increased understanding about dementia and the lived experience, reduced dementia stigma, and the development of meaningful social connections. People with dementia and their family members expressed feelings of being part of a community. PMID- 29338330 TI - Joint Influence of SNPs and DNA Methylation on Lipids in African Americans From Hypertensive Sibships. AB - INTRODUCTION: Plasma concentrations of lipids (i.e., total cholesterol, high density cholesterol, low-density cholesterol, and triglycerides) are amenable to therapeutic intervention and remain important factors for assessing risk of cardiovascular diseases. Some of the observed variability in serum lipid concentrations has been associated with genetic and epigenetic variants among cohorts with European ancestry (EA). Serum lipid levels have also been associated with genetic variants in multiethnic populations. METHODS: The purpose of this study was to determine whether single-nucleotide polymorphisms (SNPs) and DNA methylation (DNAm) differences contribute to lipid variation among African Americans ([AAs], N = 739) in the Genetic Epidemiology Network of Arteriopathy (GENOA) study. RESULTS: Previous meta-analyses identified 161 SNPs that are associated with lipid traits in populations of EA. We evaluated these SNPs and 66 DNAm sites within the genes containing the SNPs in the GENOA cohort using linear mixed-effects modeling. We did not identify any significant associations of SNPs or DNAm with serum lipid levels. These results suggest that the SNPs identified as being significant for lipid levels through the EA genome-wide association studies may not be significant across AA populations. CONCLUSIONS: Reductions in morbidity and mortality due to variation in lipids among AAs may be achieved through a better understanding of the genetic and epigenetic factors associated with serum lipid levels for early and appropriate screening. Further large-scale studies specifically within AA and other non-EA populations are warranted. PMID- 29338331 TI - The impact of HIV diagnosis on length of hospital stay in New York City, NY, USA. AB - While hospitalizations among people living with human immunodeficiency virus (PLWH) have been elevated in the past compared to their uninfected counterparts, the introduction of antiretroviral therapy (ART) has resulted in great strides in controlling symptomatic infection. However, research largely overlooks important differences among HIV-infected individuals, primarily PLWH who are symptomatic versus those who are asymptomatic. We conducted a retrospective study assessing the length of hospital stay among 717,237 admissions from three hospitals in the New York City area. Using zero-truncated negative binomial regression we documented trends in length of hospital stay among individuals who are HIV positive (with symptoms versus those without symptoms) compared to HIV-negative patients over nine consecutive years, from 2006 to 2014. Approximately 0.85% of the admissions were infected with asymptomatic HIV (n = 6,131), while 1.43% of admissions were infected with symptomatic HIV (n = 10,271). The length of stay (LOS) among symptomatic HIV-infected admissions was 32.0% (95% CI: 29.7%-34.2%) longer than LOS in the general admissions. The mean LOS dropped about 1.5% (95% CI: 1.5%-1.6%) per year in the study sample. The LOS in inpatients with asymptomatic HIV had the same LOS as the general inpatient population. Our findings highlight the need for comprehensive strategies to reduce length of hospitalization among HIV-infected individuals. PMID- 29338332 TI - Venous Thromboembolism in Podiatric Foot and Ankle Surgery. AB - BACKGROUND: The extent to which podiatric surgeons follow venous thromboembolism guidelines is unknown. The aim of this study therefore, was 2-fold: (a) to determine the rate of venous thromboembolism following podiatric surgery and (b) to investigate the factors that influence the use of thromboprophylaxis. METHODS: Data from 4238 patients who underwent foot and ankle surgery over 2 years were analyzed. Venous thromboembolism within the first 30 days following surgery was recorded using the Australasian College of Podiatric Surgeons surgical audit tool. Logistic regression analyses were undertaken to determine the factors that influenced thromboprophylaxis. RESULTS: Of the 4238 patient records, 3677 records (87%) provided complete data (age range 2-94 years; mean +/- SD, 49.1 +/- 19.7 years; 2693 females). A total of 7 venous thromboembolic events (0.2% rate) were reported. Operative duration and age (OR 12.63, 95% CI 9.47 to 16.84, P < 0.01), postoperative immobilization (OR 6.94, 95% CI 3.95 to 12.20, P < 0.01), and a prior history of VTE (OR 3.41, 95% CI 1.01 to 11.04, P = 0.04) were the strongest predictors of thromboprophylaxis. CONCLUSION: Podiatric foot and ankle surgery is associated with a low rate of venous thromboembolism. This may be due in part to the thromboprophylaxis regime implemented by podiatric surgeons, which closely aligns with current evidence-based guidelines. LEVELS OF EVIDENCE: Level II: Prospective cohort study. PMID- 29338333 TI - Endoscopic Transfer of Flexor Hallucis Longus Tendon for Chronic Achilles Tendon Rupture: Technical Aspects and Short-Time Experiences. AB - BACKGROUND: Chronic Achilles tendon ruptures can lead to reduced power of plantar flexion in the ankle with impaired gait ability. The open 1- or 2-incision technique for flexor hallucis longus transfer has proven good functional outcome but has the disadvantage of relatively extensive surgery performed at a vulnerable location. To reduce the risk of soft tissue problems, the flexor hallucis longus transfer can be performed endoscopically. MATERIAL AND METHOD: An endoscopic technique for flexor hallucis longus transfer is presented together with the experiences from the first six patients operated with this method. RESULTS: No wound healing problems or infections. Five of 6 patients managed single leg heel raise on the affected side 12 months after surgery. CONCLUSION: The functional results are promising. The soft tissue dissection is minor, and no patients had postoperative wound healing problems or infection. Endoscopic flexor hallucis longus transfer may be an operative procedure that can be considered also in patients with potential wound healing problems. LEVELS OF EVIDENCE: Level IV: Technical note/case series without controls. PMID- 29338334 TI - Proximal to Distal Exostectomy for the Treatment of Insertional Achilles Tendinopathy. AB - : When insertional Achilles tendinopathy is addressed surgically via a central Achilles splitting approach, the calcaneal osteotomy has classically been performed from distal to proximal. We describe a simple proximal to distal technique that allows optimal resection of both the calcaneal exostosis and Achilles enthesophyte, minimizes risk to the soft tissues and skin, provides a bony attachment surface parallel to the axis of the Achilles tendon, and avoids the risk of osteotomy extension into the subtalar joint. LEVELS OF EVIDENCE: Level V: Technique tip. PMID- 29338335 TI - Diabetic Retinopathy and the Cascade into Vision Loss. AB - Vision loss from diabetic retinopathy should be unnecessary for patients with access to diabetic retinopathy screening, yet it still occurs at high rates and in varied contexts. Precisely because vision loss is only one of many late-stage complications of diabetes, interfering with the management of diabetes and making self-care more difficult, Vision Threatening Diabetic Retinopathy (VTDR) is considered a "high stakes" diagnosis. Our mixed-methods research addressed the contexts of care and treatment seeking in a sample of people with VTDR using safety-net clinic services and eye specialist referrals. We point to conceptual weaknesses in the single disease framework of health care by diagnosis, and we use the framework of "cascades" to clarify why and how certain non-clinical factors come to bear on long-term experiences of complex chronic diseases. PMID- 29338336 TI - Changes in microbial growth, carotenoids, and water-soluble tannin content of ripe persimmon beverage after ultra-high pressure treatment. AB - To avoid the loss of carotenoids and increasing the tannin content associated with pasteurization, we tested ultra-high pressure treatment of ripe persimmon beverage. We compared microbial counts (aerobic bacteria, coliforms, and mould), carotenoid contents, and water-soluble tannin contents between heat- and ultra high pressure-treated beverages. No microbial contamination was detected after pasteurization or ultra-high pressure treatment at 400 MPa for more than 5 min. Ultra-high pressure treatment significantly prevented the reduction in carotenoids (lutein, zeaxanthin, beta-cryptoxanthin, beta-carotene, lycopene), with losses of 3.9-28.7%, as compared to the 65% loss after pasteurization. Moreover, ultra-high pressure did not induce an increase in water-soluble tannin, which causes astringent taste, whereas water-soluble tannins were increased three times by heat treatment. In conclusion, ultra-high pressure showed the same microbial control effect as pasteurization, while it did not cause carotenoid degeneration and increased tannin and thus, it better maintained the quality of ripe persimmon beverage. PMID- 29338337 TI - Significance of combined preoperative serum Alb and dNLR for diagnosis of pancreatic cancer. AB - AIM: To investigate diagnostic value of preoperative inflammatory biomarkers in pancreatic cancer (PCC). MATERIALS & METHODS: Preoperative circulating Alb/Fib ratio, neutrophil/lymphocyte ratio (NLR), derived NLR (dNLR), platelet/lymphocyte ratio and lymphocyte/monocyte ratio were detected and calculated in 226 PCC individuals, 232 healthy controls and 142 additional cancer controls. Receiver operating characteristic curve and area under the curve (AUC) were used to evaluate the diagnostic efficacy of PCC. RESULTS: Combined circulating dNLR and Alb could effectively improve the diagnosis of PCC (AUC = 0.931), single dNLR could distinguish early-stage PCC and the disease from healthy controls (AUC = 0.895) and additional cancer controls (AUC = 0.794). CONCLUSION: Circulating dNLR was an effective biomarker for diagnosis and identification of early-stage PCC. Combined dNLR and Alb could improve the diagnostic efficacy of the disease. PMID- 29338339 TI - Some Management Information Issues in Indigenous Health. PMID- 29338338 TI - Sesbagrandiflorain A and B: isolation of two new 2-arylbenzofurans from the stem bark of Sesbania grandiflora. AB - Native to tropical Asia, Sesbania grandiflora (L.), Pers is a member of the Fabaceae family of flowering plants. All parts of S. grandiflora are used in traditional medicine and phytochemical investigations have been conducted on extracts of the leaves, seeds and roots of S. grandiflora to provide scientific validation of its properties. However, to date, no study has determined the phytochemical constituents of S. grandiflora stem bark. The stem bark powdered of S. grandiflora was extracted exhaustively with n-hexane, EtOAc and 90% aqueous MeOH sequentially. In this study, we successfully isolated two new 2 arylbenzofurans, sesbagrandiflorain A and B, from the EtOAc stem bark of S. grandiflora. The structure elucidation of these compounds was determined by using one- and two-dimensional nuclear magnetic resonance, ultraviolet and infrared spectroscopy and electrospray ionisation time-of-flight mass spectrometry. The finding expands the understanding of the natural constituents of the Fabaceae and, in particular, the Papilionoideae genera. PMID- 29338340 TI - The ICD-10-AM Mental Health Manual: An Integrated Classification and Diagnostic Tool for Community-Based Mental Health Services. PMID- 29338342 TI - President's Report. PMID- 29338341 TI - RNA sequencing on Amomum villosum Lour. induced by MeJA identifies the genes of WRKY and terpene synthases involved in terpene biosynthesis. AB - Amomum villosum Lour. is an important Chinese medicinal plant that has diverse medicinal functions, and mainly contains volatile terpenes. This study aims to explore the WRKY transcription factors (TFs) and terpene synthase (TPS) unigenes that might be involved in terpene biosynthesis in A. villosum, and thus providing some new information on the regulation of terpenes in plants. RNA sequencing of A. villosum induced by methyl jasmonate (MeJA) revealed that the WRKY family was the second largest TF family in the transcriptome. Thirty-six complete WRKY domain sequences were expressed in response to MeJA. Further, six WRKY unigenes were highly correlated with eight deduced TPS unigenes. Ultimately, we combined the terpene abundance with the expression of candidate WRKY TFs and TPS unigenes to presume a possible model wherein AvWRKY61, AvWRKY28, and AvWRKY40 might coordinately trans-activate the AvNeoD promoter. We propose an approach to further investigate TF unigenes that might be involved in terpenoid biosynthesis, and identified four unigenes for further analyses. PMID- 29338343 TI - Molecular analysis of anthocyanin biosynthesis pathway genes and their differential expression in mango peel. AB - Mango fruit is cherished by masses for its taste and nutrition, contributed by color, flavor, and aroma. Among these, peel color is an important trait contributing to fruit quality and market value. We attempted to elucidate the role of key genes of the anthocyanin biosynthesis pathway related to fruit peel color from the leaf transcriptome of mango cultivar Amrapali. A total of 108 mined transcript sequences were assigned to the phenylpropanoid-flavonoid pathway from which 15 contigs representing anthocyanin biosynthesis genes were annotated. Alternate splice variants were identified by mapping against genes of Citrus clementina and Vitis vinifera (closest relatives) and protein subcellular localization was determined. Phylogenetic analysis of these pathway genes clustered them into distinct groups aligning with homologous genes of Magnifera indica, C. clementina, and V. vinifera. Expression profiling revealed higher relative fold expressions in mature fruit peel of red-colored varieties (Arunika, Ambika, and Tommy Atkins) in comparison with the green-peeled Amrapali. MiCHS, MiCHI, and MiF3H alternate splice variants revealed differential gene expression. Functionally divergent variants indicate availability of an allelic pool programmed to play critical roles in peel color. This study provides insight into the molecular genetic basis of peel color and offers scope for development of biomarkers in varietal improvement programs. PMID- 29338345 TI - Effect of Anacardium occidentale leaf extract on human acute lymphoblastic leukaemia cell lines. AB - Anacardium occidentale leaves are used in folk medicine due its therapeutic properties attributed to phenolic compounds. Therefore, this study was undertaken on its hydroethanolic leaf extract (AoHE) to evaluate cytotoxicity and apoptosis induction on acute lymphoblastic leukaemia cells. Results indicated that AoHE interfered in the cell cycle progression, inducing apoptosis by activation of casp3 at lower concentrations, thence, a promising candidate for the development of new cancer drugs. PMID- 29338344 TI - Reappraisal inventiveness: impact of appropriate brain activation during efforts to generate alternative appraisals on the perception of chronic stress in women. AB - BACKGROUND AND OBJECTIVES: Previous research indicated that more left-lateralized prefrontal activation during cognitive reappraisal efforts was linked to a greater capacity for generating reappraisals, which is a prerequisite for the effective implementation of cognitive reappraisal in everyday life. The present study examined whether the supposedly appropriate brain activation is relevant in terms of more distal outcomes, i.e., chronic stress perception. DESIGN AND METHODS: Prefrontal EEG alpha asymmetry was recorded while female participants were generating reappraisals for stressful events and was correlated with their self-reported chronic stress levels in everyday life (n = 80). RESULTS: Women showing less left-lateralized brain activity in the ventrolateral prefrontal cortex during cognitive reappraisal efforts reported experiencing more stress in their daily lives. This effect was independent of self-efficacy beliefs in managing negative emotions. CONCLUSION: These findings underline the practical relevance of individual differences in appropriate brain activation during emotion regulation efforts and the assumedly related basic capacity for the generation of cognitive reappraisals to the feeling of being stressed. Implications include the selection of interventions for the improvement of coping with stress in women in whom the capability for appropriate brain activation during reappraisal efforts may be impaired, e.g., due to depression or old age. PMID- 29338346 TI - Foot Mobility Magnitude and Stiffness in Children With and Without Calcaneal Apophysitis. AB - BACKGROUND: This study evaluated quasi-static measures of foot mobility magnitude (FMM) and foot stiffness (FS) in children, aged 8 to 14 years, with and without calcaneal apophysitis. METHODS: Between 2016 and 2017, FMM and FS measurements were captured on 41 children (22 cases and 19 controls) using a custom-built foot assessment platform. The platform incorporated a portable force plate that allowed quantification of vertical force during double-limb stance (DLS). RESULTS: There was no significant difference in FS in children with and without calcaneal apophysitis ( P = .459). FMM was significantly greater (+19%) in children with calcaneal apophysitis than in those without ( P = .045). The mean difference in FMM between groups (1.4 mm), however, did not exceed the minimum detectable change at the 95% confidence level (MDC95%) for the measurement (+/ 2.5 mm). CONCLUSION: Differences in FMM in children with calcaneal apophysitis were small and within the observed error of measurement. Clinical measures of FS did not differ in children with and without calcaneal apophysitis during quasistatic loading. Further research evaluating the level of uncertainty of the measurement techniques in children and under dynamic loading conditions is recommended. These findings question the rationale behind interventions which aim to modify quasistatic foot mobility and stiffness in children with calcaneal apophysitis. LEVEL OF EVIDENCE: Level III, comparative series. PMID- 29338347 TI - Developments and Issues in ePrescribing and eHealth. PMID- 29338348 TI - Links to Cyber Health: Government Web Sites, Australia. PMID- 29338349 TI - A multistep docking and scoring protocol for congeneric series: Implementation on kinase DFG-out type II inhibitors. AB - AIM: Rescoring of docking-binding poses can significantly improve molecular docking results. Our aim was to evaluate postprocessing docking protocols in order to determine the most suitable methodology for the study of the binding of congeneric compounds to protein kinases. MATERIALS & METHODS: Diverse ligand receptor poses generated after docking were submitted to different relaxation protocols. The Molecular Mechanics Poisson-Boltzmann (Generalized Born) Surface Area approach was applied for the evaluation of the binding affinity of complexes obtained. The performance of various Molecular Mechanics Poisson-Boltzmann (Generalized Born) Surface Area methodologies was compared. RESULTS: The inclusion of a postprocessing protocol after docking enhances the quality of the results, although the best methodology is system dependent. CONCLUSION: An examination of the interactions established has allowed us to suggest useful modifications for the design of new type II inhibitors. PMID- 29338350 TI - Polyketides from the fungus Penicillium decumbens. AB - Two new polyketides, 3,11-dihydroxy-6,8-dimethyldodecanoic acid (1) and trichopyrone B (2), together with two known polyketides, sorbicillin (3) and penicillone A (4), have been isolated from the cultures broth of the fungus Penicillium decumbens. Their structures were elucidated by extensive spectroscopic analysis. All isolated compounds were evaluated for their antibacterial and cytotoxic activities. Of these, compound 3 showed antifungal activity toward Candida albicans Y0109 with a MIC value of 50 MUM. Moreover, compounds 3 and 4 exhibited selective cytotoxicity against the human hepatocellular carcinoma (QGY-7703) cell line with the IC50 values of 32.5 and 22.8 MUM, respectively. PMID- 29338351 TI - A new lindenane-type sesquiterpenoid lactone from Chloranthus japonicus. AB - Chromatographic fractionation of the EtOH extracts of the Traditional Chinese Medicine (TCM) Chloranthus japonicus, has led to the isolation of a new lindenane type sesquiterpenoid lactone derivative (1). Rosmarylchloranthalactone E (1), which consists of lindenane sesquiterpenoid lactone and rosmarinic acid moieties linked via an ester bridge, was structurally elucidated by 1D and 2D NMR and HRMS data. Compound 1 was a potent phosphodiesterase-4 (PDE4) inhibitor with an IC50 value of 0.96 +/- 0.04 MUM. PMID- 29338352 TI - Anti-inflammatory and antioxidant activities of Rungia congoensis, a traditional vegetable consumed by Yombe people from Kongo Central area (DR. Congo). AB - Rungia congoensis, a traditional vegetable from Kongo Central area (DR. Congo) was studied for establishing microscopic characters and characterised by chromatographic techniques and their in vitro biochemical activities against ROS production were evaluated in cellular models and on an enzyme, myeloperoxidase (MPO), involved in inflammation. Microscopically leaf can be characterised by non glandular and glandular trichomes, sinuous anticlinal epidermal cells, diacytic stomata and helical vessels. Methanolic extract displayed high cellular antioxidant activity at the concentrations range of 0.1-10 MUg mL-1 and 1-20 MUg mL-1 using lucigenin on neutrophils and DCFH-DA on HL 60, respectively. This extract also showed, more efficient effects on extracellular and intracellular ROS production and MPO activity. Antioxidant and anti-inflammatory activities of R. congoensis were significantly higher, positively correlated with their phytochemical constituents such as flavonoids, iridoids and phenolic acids; and could justify their use as traditional vegetable and potent local nutraceutical resource. PMID- 29338353 TI - Developing a Tailored Website for Promoting Awareness about Obstructive Sleep Apnea (OSA) Among Blacks in Community-Based Settings. AB - Blacks are at greater risk for lower sleep quality and higher risk for obstructive sleep apnea (OSA) than other racial groups. In this study, we summarize the development of a tailored website including visuals, key messages, and video narratives, to promote awareness about sleep apnea among community dwelling blacks. We utilized mixed methods, including in-depth interviews, usability-testing procedures, and brief surveys (n = 9, 55% female, 100% black, average age 38.5 years). Themes from the qualitative analysis illuminated varied knowledge regarding OSA symptoms and prevalent self-reported experience with sleep disturbance and OSA symptoms (e.g., snoring). On a scale from 1 (not at all) to 5 (very high), participants provided favorable ratings of website usefulness (mean = 4.9), user friendliness (mean = 4.9) and attractiveness (mean = 4.3). Our findings suggest although tailored health communication has potential for serving as a tool for advancing health equity, usability-testing of health materials is critical to ensure that culturally and linguistically tailored messages are acceptable and actionable in the intended population. PMID- 29338354 TI - Teaching and Learning Across Two Cultures and Two Languages: German Health Classification and Casemix Education Program. PMID- 29338356 TI - Privacy Update: Community Attitudes towards Privacy. PMID- 29338355 TI - New compounds with antimicrobial activities from Elaeodendron buchananii stem bark. AB - The plant species Elaeodendron buchananii Loes is widely used in folklore medicine to manage microbial infections in Kenya. Previous studies on the plant fruits and root bark revealed the presence of steroids and terpenoids. The present phytochemical analysis of the plant stem bark has led to the isolation of four new triterpenes characterized as methyl 3beta-acetoxy-11alpha, 19alpha, 28 trihydroxyurs-12-en-23-oic acid (1), 3beta, 11alpha, 19alpha-trihydroxyurs-12-en 23, 28-dioic acid (2), 3beta-acetoxy-19alpha, 23, 28-trihydroxyurs-12-ene (3) and 3-oxo-19alpha, 28-dihydroxyurs-12-en-24-oic acid (4), together with ten known ones (5-14), whose structures were elucidated using spectroscopic techniques. The isolate canophyllol (8) showed promising antibacterial activity against N. meningitides with MIC value of 31.25 MUg/ml. PMID- 29338357 TI - Clinical Terminologies, Health Classifications and the Health Information Management Profession: Vital to All Sectors of the Healthcare System. PMID- 29338358 TI - Chemical and Biological insights of Ouratea hexasperma (A. St.-Hil.) Baill.: a source of bioactive compounds with multifunctional properties. AB - The study aimed to evaluate in vitro antioxidant, anticholinesterase and antidiabetic properties of Ouratea hexasperma (A. St.-Hil.) Baill. The inflorescence methanol extract and the ethyl acetate fraction of leaves and stems reported the highest Relative Antioxidant Capacity Index (RACI), whereas the dichloromethane fraction of leaves was the best inhibitor of alpha-amylase and alpha-glucosidase. Trans-3-O-methyl-resveratrol-2-C-beta-glucoside, lithospermoside, 2,5-dimethoxy-p-benzoquinone, lup-20(30)-ene-3beta,28-diol, 7-O methylgenistein, apigenin and luteolin and amentoflavone were isolated from O. hexasperma. Resveratrol derivative was isolated for the first time in Ochnaceae family. Luteolin, followed by apigenin, reported the highest Relative Antioxidant Capacity Index and they were also the best inhibitors of alpha-glucosidase enzyme. PMID- 29338359 TI - Characterization of moso bamboo (Phyllostachys edulis) Dof transcription factors in floral development and abiotic stress responses. AB - The Dof transcription factor (TF) family belongs to a class of plant-specific TFs and is involved in plant growth, development, and response to abiotic stresses. However, there are only very limited reports on the characterization of Dof TFs in moso bamboo (Phyllostachys edulis). In the present research, PheDof TFs showed specific expression profiles based on RNA-seq data analyses. The co-expression network indicated that PheDof12, PheDof14, and PheDof16 might play vital roles during flower development. Cis-regulatory element analysis of these PheDof genes suggested diverse functions. Expression patterns of 12 selected genes from seven different classes under three abiotic stresses (cold, salt, and drought) are further investigated by quantitative real-time PCR. This work will provide useful information for functional analysis and regulation mechanisms of Dof TFs in moso bamboo. PMID- 29338361 TI - Pursue the Challenge: A New Graduate's Experience. PMID- 29338360 TI - The Implementation of New Morbidity Classifications in Canada. AB - Canada is in the midst of a staggered implementation of the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Canada (ICD-10-CA) and the Canadian Classification of Health Interventions (CCI). These classifications are more comprehensive than historical standards and their capacity extends beyond the scope of their predecessor classifications. Canada is the first country to produce the new classifications in a database, with the final product in an infobase format. The Canadian Institute for Health Information (CIHI) was responsible for the enhancement of ICD-10-CA, the development of CCI, the education of coders, and the provision of post-implementation support. PMID- 29338362 TI - Coder Educator: The Way Forward. AB - The introduction of a new Coder Educator position in the Coding Unit at the Princess Alexandra Hospital, Brisbane, Queensland, has been a key strategy in the development and maintenance of a skilled coding workforce, the improvement of the level of knowledge of the coding staff, and the provision of a career structure for clinical coders. In this report, the experience is related from the perspectives of the Coding Manager and the Coder Educator. PMID- 29338363 TI - The Impact of the Technical/Technological Background of Medical and Paramedical Staff on the Efficiency of a Digital Medical Information System Introduced at a State Hospital Department. PMID- 29338364 TI - Implementation of Privacy Legislation and Principles: A Private Hospital Perspective. PMID- 29338365 TI - Developing and Managing the National Coroners' Information System for Australia. PMID- 29338366 TI - Risk Management - What's in it for Health Information Managers? PMID- 29338367 TI - Making a Quality Start: A Coder Orientation Program. AB - Orienting new clinical coders to the hospital's case mix should be a basic function of the organisation's Coding Service. After much trial and error, Southern Health Coding and Casemix Services has devised an orientation program that brings together, in a structured and logical manner, all the elements a coder needs to know. This article describes the current coding orientation program. PMID- 29338368 TI - An Australian Standard for Health Care Client Identification. PMID- 29338370 TI - The Statewide Client Registration Project Initiated by the Tasmanian Department of Health & Human Services. PMID- 29338369 TI - Snomed(r) CT: The Fit with Classification in Health. AB - Classification systems are the primary means for automated retrieval and analysis of healthcare data from individual patient medical records. This article will provide a brief history and overview of the two most comprehensive and advanced controlled clinical terminologies in the world: the Systematized Nomenclature of Medicine Reference Terminology (SNOMED(r) RT), and Clinical Terms Version 3 (CTV3). A discussion will follow of the merger of these two terminologies into a single new work, SNOMED(r) Clinical Terms (SNOMED(r) CT), as released in early 2002, how it is used to retrieve data, how it differs from a classification, and the opportunities open to health information management professionals to expand their roles as information managers through their knowledge of SNOMED CT. PMID- 29338371 TI - Health Information Services in the West Pilbara Health Service, North-Western Australia. PMID- 29338372 TI - Getting it Right: Meeting the Aged Care Accreditation Standards. AB - The aged care industry in Australia has been faced with many challenges over the last five years, including the introduction of the Aged Care Act 1997 and the Aged Care Accreditation Standards. The purpose of the introduction of the accreditation process was to ensure that residential aged care services were complying with the Accreditation Standards and making a commitment to continuously improve their standard of care and services (Aged Care Standards and Accreditation Agency, 2000). This article describes how one service has implemented a management system approach to ensure compliance with the Aged Care Accreditation Standards. PMID- 29338373 TI - Nursing Classification and Terminology Systems. AB - A number of terminologies exist that represent concepts of relevance to nurses, although none of these is in use by Australian nurses. Without consensus, nursing language and definitions incorporated in clinical information systems now being implemented will continue to vary considerably. The result will be an inability to compare nursing practice, or to aggregate data for research purposes, or to collect national statistical data to demonstrate the significance of nurses' contributions to health care. This article provides an international historical overview of nursing terminology developments relative to what is happening in Australia, brief reviews of the many available nursing terminologies, an update of this work relative to activities being undertaken towards the development and adoption of standards, and a discussion about desirable future research and development activities. PMID- 29338374 TI - Accreditation in Primary Health: RACGP Standards for General Practice. AB - General Practitioners play a crucial role as "gate-keepers" to the health system. In this context, they have a profound influence on both health outcomes and health expenditure. Since the introduction in 1999 of a formal, peer-driven external accreditation process, over 4,590 Australian general practices have achieved full accreditation. The process of re-ccreditation has commenced, subsequent to a review of the original standards, and with an ongoing focus on continuous quality improvement. This article describes a typical accreditation survey visit, and explains the accreditation criteria and how they are reviewed by the surveyors. There is discussion also of the impact of this new accreditation system on general practice. PMID- 29338375 TI - Information and Case Mix Funding. PMID- 29338376 TI - Australian Classification of Health Interventions - Adapted for International Use (ACHI-I). PMID- 29338377 TI - The Research and Public Consultation Process Undertaken in the Development of AR DRG Version 5.0. PMID- 29338378 TI - Health Information Management in the Australian Health Care System as a Whole. PMID- 29338379 TI - Factors Affecting Survival in Children With Pericardial Effusion After Hematopoietic Stem Cell Transplantation. AB - The objective of this study was to determine the incidence, risk factors, outcome, and clinical significance of pericardial effusion (PE). We retrospectively analyzed outcomes of 272 pediatric patients undergoing their first hematopoietic stem cell transplantation (HSCT) from 1998 to 2016. In total, 15% (3/20) and 5.9% (15/252) of autologous and allogeneic HSCT recipients, respectively, were identified with PE. However, there was no statistically significant difference in the incidence of PE between the 2 groups. The mean age at transplantation was 11.12 +/- 5.41 y. Eighteen patients developed PE at 4.13 +/- 4.44 mo after HSCT. PE was confirmed by echocardiogram in all patients. Three patients presented with severe PE with cardiac tamponade and required urgent pericardiocentesis. Overall survival (OS) rates for patients who developed PE were 83.3% and 38.9% at 100 d and 3 y, respectively, after HSCT. Death was not directly attributable to PE in patients who died in the first year after HSCT. Multivariable analysis identified the following variables to be associated with OS: PE (relative risk[RR]: 3.70; 95% confidence interval [95% CI]: 1.89-7.23; P < 0.001), active disease at HSCT (RR: 1.59; 95% CI: 1.02-2.49; P < 0.001), and thalassemia (RR: 0.62; 95% CI: 0.45-0.84; P < 0.001). PE is, thus, a debilitating and significant complication of pediatric HSCT. Therefore, prospective studies are required for better determination of the etiology and optimal method of PE treatment after HSCT. PMID- 29338380 TI - Transplantation of Human Neural Progenitor Cells Reveals Structural and Functional Improvements in the Spastic Han-Wistar Rat Model of Ataxia. AB - The use of regenerative medicine to treat nervous system disorders like ataxia has been proposed to either replace or support degenerating neurons. In this study, we assessed the ability of human neural progenitor cells (hNPCs) to repair and restore the function of dying neurons within the spastic Han-Wistar rat (sHW), a model of ataxia. The sHW rat suffers from neurodegeneration of specific neurons, including cerebellar Purkinje cells and hippocampal CA3 pyramidal cells leading to the observed symptoms of forelimb tremor, hind-leg rigidity, gait abnormality, motor incoordination, and a shortened life span. To alleviate the symptoms of neurodegeneration and to replace or augment dying neurons, neuronal human progenitor cells were implanted into the sHW rats. At 30 d of age, male sHW mutant rats underwent subcutaneous implantation of an Alzet osmotic pump that infused cyclosporine (15 mg/kg/d) used to suppress the rat's immune system. At 40 d, sHW rats received bilateral injections (500,000 cells in 5 uL media) of live hNPCs, dead hNPCs, live human embryonic kidney cells, or growth media either into the cerebellar cortex or into the hippocampus. To monitor results, motor activity scores (open-field testing) and weights of the animals were recorded weekly. The sHW rats that received hNPC transplantation into the cerebellum, at 60 d of age, displayed significantly higher motor activity scores and sustained greater weights and longevities than control-treated sHW rats or any hippocampal treatment group. In addition, cerebellar histology revealed that the transplanted hNPCs displayed signs of migration and signs of neuronal development in the degenerated Purkinje cell layer. This study revealed that implanted human progenitor cells reduced the ataxic symptoms in the sHW rat, identifying a future clinical use of these progenitor cells against ataxia and associated neurodegenerative diseases. PMID- 29338381 TI - Effect of the Diabetic State on Islet Engraftment and Function in a Large Animal Model of Islet-Kidney Transplantation. AB - In islet transplantation, in addition to immunologic and ischemic factors, the diabetic/hyperglycemic state of the recipient has been proposed, although not yet validated, as a possible cause of islet toxicity, contributing to islet loss during the engraftment period. Using a miniature swine model of islet transplantation, we have now assessed the effect of a persistent state of hyperglycemia on islet engraftment and subsequent function. An islet-kidney (IK) model previously described by our laboratory was utilized. Three experimental donor animals underwent total pancreatectomy and autologous islet transplantation underneath the renal capsule to prepare an IK at a load of <=1,000 islet equivalents (IE)/kg donor weight, leading to a chronic diabetic state during the engraftment period (fasting blood glucose >250 mg/dL). Three control donor animals underwent partial pancreatectomy (sufficient to maintain normoglycemia during islet engraftment period) and IK preparation. As in vivo functional readout for islet engraftment, the IKs were transplanted across an immunologic minor or class I mismatch barrier into diabetic, nephrectomized recipients at an islet load of ~4,500 IE/kg recipient weight. A 12-d course of cyclosporine was administered for tolerance induction. All experimental donors became diabetic and showed signs of end organ injury, while control donors maintained normoglycemia. All recipients of IK from both experimental and control donors achieved glycemic control over long-term follow-up, with reversal of diabetic nephropathy and with similar glucose tolerance tests. In this preclinical, large animal model, neither islet engraftment nor subsequent long-term islet function after transplantation appear to be affected by the diabetic state. PMID- 29338382 TI - Mounting of Biomaterials for Use in Ophthalmic Cell Therapies. AB - When used as scaffolds for cell therapies, biomaterials often present basic handling and logistical problems for scientists and surgeons alike. The quest for an appropriate mounting device for biomaterials is therefore a significant and common problem. In this review, we provide a detailed overview of the factors to consider when choosing an appropriate mounting device including those experienced during cell culture, quality assurance, and surgery. By way of example, we draw upon our combined experience in developing epithelial cell therapies for the treatment of eye diseases. We discuss commercially available options for achieving required goals and provide a detailed analysis of 4 experimental designs developed within our respective laboratories in Australia, the United Kingdom, and Belgium. PMID- 29338383 TI - The Process of Engraftment of Myogenic Cells in Skeletal Muscles of Primates: Understanding Clinical Observations and Setting Directions in Cell Transplantation Research. AB - We studied in macaques the evolution of the intramuscular transplantation of muscle precursor cells between the time of administration and the time at which the graft is considered stable. Satellite cell-derived myoblasts labeled with beta-galactosidase were transplanted into 1 cm3 muscle regions following cell culture and transplantation protocols similar to our last clinical trials. These regions were biopsied 1 h, 1, 3, 7 d, and 3 wk later and analyzed by histology. We observed that the cell suspension leaks from the muscle bundles during injection toward the epimysium and perimysium, where most cells accumulate after transplantation. We observed evidence of necrosis, apoptosis, and mitosis in the accumulations of grafted cells, and of potential migration to participate in myofiber regeneration in the surrounding muscle bundles. After 3 wk, the compact accumulations of grafted cells left only some graft-derived myotubes and small myofibers in the perimysium. Hybrid myofibers were abundant in the muscle fascicles at 3 wk posttransplantation, and they most likely occur by grafted myoblasts that migrated from the peripheral accumulations than by the few remaining within the fascicles immediately after injection. These observations explain the findings in clinical trials of myoblast transplantation and provide information for the future research in cell therapy in myology. PMID- 29338384 TI - Human Umbilical Cord Mesenchymal Stem Cells Preserve Adult Newborn Neurons and Reduce Neurological Injury after Cerebral Ischemia by Reducing the Number of Hypertrophic Microglia/Macrophages. AB - Microglia are the first source of a neuroinflammatory cascade, which seems to be involved in every phase of stroke-related neuronal damage. Two weeks after transient middle cerebral artery occlusion (MCAO), vehicle-treated rats displayed higher numbers of total ionized calcium-binding adaptor molecule 1 (Iba-1) positive cells, greater cell body areas of Iba-1-positive cells, and higher numbers of hypertrophic Iba-1-positive cells (with a cell body area over 80 MUm2) in the ipsilateral ischemic brain regions including the frontal cortex, striatum, and parietal cortex. In addition, MCAO decreased the number of migrating neuroblasts (or DCX- and 5-ethynyl-2'-deoxyuridine-positive cells) in the cortex, subventricular zone, and hippocampus of the ischemic brain, followed by neurological injury (including brain infarct and neurological deficits). Intravenous administration of human umbilical cord-derived mesenchymal stem cells (hUC-MSCs; 1 * 106 or 4 * 106) at 24 h after MCAO reduced neurological injury, decreased the number of hypertrophic microglia/macrophages, and increased the number of newborn neurons in rat brains. Thus, the accumulation of hypertrophic microglia/macrophages seems to be detrimental to neurogenesis after stroke. Treatment with hUC-MSCs preserved adult newborn neurons and reduced functional impairment after transient cerebral ischemia by reducing the number of hypertrophic microglia/macrophages. PMID- 29338385 TI - Does the Mesenchymal Stem Cell Source Influence Smooth Muscle Regeneration in Tissue-Engineered Urinary Bladders? AB - A variety of tissue engineering techniques utilizing different cells and biomaterials are currently being explored to construct urinary bladder walls de novo, but so far no approach is clearly superior. The aim of this study was to determine whether mesenchymal stem cells (MSCs) isolated from different sources, (bone marrow [BM-MSCs] and adipose tissue [ADSCs]), differ in their potential to regenerate smooth muscles in tissue-engineered urinary bladders and to determine an optimal number of MSCs for urinary bladder smooth muscle regeneration. Forty eight rats underwent hemicystectomy and bladder augmentation with approximately 0.8 cm2 graft. In the first and second groups, urinary bladders were reconstructed with small intestinal submucosa (SIS) seeded with 10 * 106 or 4 * 106 ADSCs/cm2, respectively. In the third and fourth groups, urinary bladders were augmented with SIS seeded with 10 * 106 or 4 * 106 BM-MSCs/cm2, respectively. In the fifth group, urinary bladders were augmented with SIS without cells. The sixth group (control) was left intact. Smooth muscle regeneration was evaluated by real-time polymerase chain reaction (RT-PCR) and histological examinations. Histologically, there were no significant differences between urinary bladders augmented with ADSCs and BM-MSCs, but there was a marked increase in smooth muscle formation in bladders augmented with grafts seeded with MSCs in higher density (10 * 106/cm2) compared to lower density (4 * 106/cm2). Molecular analysis revealed that bladders reconstructed with ADSC-seeded grafts expressed higher levels of smooth muscle myosin heavy chain, caldesmon, and vinculin. Bladders augmented with unseeded SIS were fibrotic and devoid of smooth muscles. ADSCs and BM-MSCs have comparable smooth muscle regenerative potential, but the number of MSCs used for graft preparation significantly affects the smooth muscle content in tissue-engineered urinary bladders. PMID- 29338387 TI - Quantifying the Effects of Different Neutral Proteases on Human Islet Integrity. AB - Efficient islet release from the pancreas requires the combination of collagenase, neutral protease (cNP), or thermolysin (TL). Recently, it has been shown that clostripain (CP) may also contribute to efficient islet release from the human pancreas. The aim of this study was to evaluate the impact of these proteases on human islet integrity in a prospective approach. Islets were isolated from the pancreas of 10 brain-dead human organ donors. Purified islets were precultured for 3 to 4 d at 37 degrees C to ensure that preparations were cleared of predamaged islets, and only integral islets were subjected to 90 min of incubation at 37 degrees C in Hank's balanced salt solution supplemented with cNP, TL, or CP. The protease concentrations were calculated for a pancreas of 100 g trimmed weight utilizing 120 dimethyl-casein units of cNP, 70,000 caseinase units of TL, or 200 benzoyl-l-arginine-ethyl-ester units of CP (1*). These activities were then increased both 5* and 10*. After subsequent 24-h culture in enzyme-free culture medium, treated islets were assessed and normalized to sham treated controls. Compared with controls and CP, islet yield was significantly reduced by using the 5* activity of cNP and TL, inducing also fragmentation and DNA release. Viability significantly decreased not until adding the 1* activity of cNP, 5* activity of TL, or 10* activity of CP. Although mitochondrial function was significantly lowered by 1* cNP and 5* TL, CP did not affect mitochondria at any concentration. cNP- and TL-incubated islets significantly lost intracellular insulin already at 1* activity, while the 10* activity of CP had to be added to observe a similar effect. cNP and TL have a similar toxic potency regarding islet integrity. CP also induces adverse effects on islets, but the toxic threshold is generally higher. We hypothesize that CP can serve as supplementary protease to minimize cNP or TL activity for efficient pancreas digestion. PMID- 29338386 TI - Estrogen-Estrogen Receptor alpha Signaling Facilitates Bilirubin Metabolism in Regenerating Liver Through Regulating Cytochrome P450 2A6 Expression. AB - BACKGROUND: After living donor liver transplantation (LDLT), rising serum bilirubin levels commonly indicate insufficient numbers of hepatocytes are available to metabolize bilirubin into biliverdin. Recovery of bilirubin levels is an important marker of hepatocyte repopulation after LDLT. Cytochrome P450 (CYP) 2A6 in humans (or cyp2a4 in rodents) can function as "bilirubin oxidase." Functional hepatocytes contain abundant CYP2A6, which is considered a marker for hepatocyte function recovery. The aim of our study was to determine the impact of estradiol/estrogen receptor signaling on bilirubin levels during liver function recovery. METHODS: We conducted a hospital-based cohort study of bilirubin levels after LDLT surgery in both liver graft donors and recipients, performed a transcriptome comparison of wild-type versus estrogen receptor (ER)alpha knockout mice and a bioinformatics analysis of transcriptome changes in their regenerating liver after two-third partial hepatectomy (PHx), and assayed in vitro expression of cytochrome (CYP2A6) in human hepatic progenitor cells (HepRG) treated with 17beta-estradiol (E2). RESULTS: The latency of bilirubin level reduction was shorter in women than in men, suggesting that a female factor promotes bilirubin recovery after liver transplantation surgery. In the PHx mouse model, the expression of the cyp2a4 gene was significantly lower in livers from the knockout ERalpha mice than in livers from their wild-type littermates; but the expression of other bilirubin metabolism-related genes were similar between these groups. Moreover, E2 or bilirubin treatments significantly promoted CYP2A6 expression in hepatocyte progenitor cells (HepRG cells). Sequence analysis revealed similar levels of aryl hydrocarbon receptor (AhR; bilirubin responsive nuclear receptor) and ESR1 binding to the promoter region of CYP2A6. CONCLUSIONS: This is the first report to demonstrate, on a molecular level, that E2/ERalpha signaling facilitates bilirubin metabolism in regenerating liver. Our findings contribute new knowledge to our understanding of why the latency of improved bilirubin metabolism and thereby liver function recovery is shorter in females than in males. PMID- 29338389 TI - Privacy Officer: A Role for Health Information Managers. AB - Health information managers (HIMs) are experts in the protection and management of health information within patient records and information systems. New privacy legislation in Australia has raised the importance of this protection and a new role of Privacy Officer is evolving. HIMs are well positioned to take on this role and its associated responsibilities. Here, a Privacy Officer from Victoria provides an insight into the position and its opportunities. PMID- 29338391 TI - Development of a National Standard for the Identification of Health Care Providers. PMID- 29338390 TI - Preparing for New Health Privacy Legislation in Rural Australia. AB - This Rural Professional Practice item describes the benefits of a collaborative, regional approach to implementing new health privacy legislation. Videoconferencing has been adopted to surmount the problems of long-distance communication between the Privacy Officers of 11 regional health services spread throughout a large region of south-eastern Australia. PMID- 29338388 TI - Novel Fusion Protein Targeting Mitochondrial DNA Improves Pancreatic Islet Functional Potency and Islet Transplantation Outcomes. AB - Long-term graft survival is an ongoing challenge in the field of islet transplantation. With the growing demand for transplantable organs, therapies to improve organ quality and reduce the incidence of graft dysfunction are of paramount importance. We evaluated the protective role of a recombinant DNA repair protein targeted to mitochondria (Exscien I-III), as a therapeutic agent using a rodent model of pancreatic islet transplantation. We first investigated the effect of therapy on isolated rat islets cultured with pro-inflammatory cytokines (interleukin-1 beta, interferon gamma, and tumor necrosis factor alpha) for 48 h and documented a significant reduction in apoptosis by flow cytometry, improved viability by immunofluorescence, and conserved functional potency in vitro and in vivo in Exscien I-III-treated islets. We then tested the effect of therapy in systemic inflammation using a rat model of donor brain death (BD) sustained for a 6-h period. Donor rats were allocated to 4 groups: (non-BD + vehicle, non-BD + Exscien I-III, BD + vehicle, and BD + Exscien I-III) and treated with Exscien I-III (4 mg/kg) or vehicle 30 min after BD induction. Sham (non-BD)-operated animals receiving either Exscien I-III or vehicle served as controls. Islets purified from BD + Exscien I-III-treated donors showed a significant increase in glucose-stimulated insulin release in vitro when compared to islets from vehicle-treated counterparts. In addition, donor treatment with Exscien I-III attenuated the effects of BD and significantly improved the functional potency of transplanted islets in vivo. Our data indicate that mitochondrially targeted antioxidant therapy is a novel strategy to protect pancreas and islet quality from the deleterious effects of cytokines in culture and during the inflammatory response associated with donation after BD. The potential for rapid translation into clinical practice makes Exscien I-III an attractive therapeutic option for the management of brain-dead donors or as an additive to islets in culture after isolation setting. PMID- 29338392 TI - What is Quality in Health Care? PMID- 29338393 TI - Overview of the New South Wales Health Unique Patient Identifier Project. PMID- 29338394 TI - Reference Terminologies. PMID- 29338395 TI - The University of Sydney, Sydney, New South Wales. PMID- 29338396 TI - Queensland University of Technology, Brisbane, Queensland. PMID- 29338397 TI - Regarding Questions and Principles. PMID- 29338398 TI - Valuing Your Past to Provide a Stronger Future - A Queensland Perspective on Professional Development at the State Level. PMID- 29338399 TI - The 2nd National Health Online Summit, Brisbane 3-4 March 2003. AB - The first conference was held in Adelaide in August 2000. The conference was an initiative of the National Health Information Management Advisory Council (NHIMAC). NHIMAC was established in 1998 by the Australian Health Ministers to advise on options to promote a nationally uniform approach to more effective information management in the health sector. The second conference was held in Brisbane in March 2003, and this paper provides an overview of the key issues addressed there. PMID- 29338401 TI - From Shanghai to Guangzhou: Interest in Health Information Management from China. PMID- 29338400 TI - Excerpts from the IFHRO Handbook on Health Record Education. PMID- 29338402 TI - Research in Health Information Management Practice. PMID- 29338403 TI - Guardians of Knowledge: The Paradigm of Confidentiality. PMID- 29338404 TI - Understanding Neurobiological Implications of Maltreatment: A focus on children and youth. PMID- 29338405 TI - Graduate Student/Postdoctoral Fellow Section of Child Maltreatment Editorial Board. PMID- 29338406 TI - A Decade of the Australian Casemix Classification. PMID- 29338407 TI - La Trobe University, Melbourne, Victoria. PMID- 29338408 TI - 10th European Conference on Health Records, Dublin, Ireland, 25-29 August 2002: Managing Health Information in the 21st Century. PMID- 29338409 TI - Announcing: The 14th Congress of the International Federation of Health Records Organizations, in Conjunction with the American Health Information Management Association 76th National Convention and Exhibit - Washington, DC, USA, 9-14 October, 2004. PMID- 29338410 TI - Uses of Health Information. PMID- 29338411 TI - Update from the IFHRO Executive Committee. PMID- 29338412 TI - International Reflections. PMID- 29338413 TI - HIMAA and Education. PMID- 29338414 TI - HIM Education Advances. PMID- 29338415 TI - AHIMA Project Offers Insights into SNOMED, ICD-9-CM Mapping Process. PMID- 29338416 TI - Data Quality Management at Hong Kong Public Hospitals. PMID- 29338417 TI - Editorial. PMID- 29338418 TI - Once upon a Time ... the Power of Story and Learning Journals. AB - This paper will invite you to consider the role of stories for learning and the use of learning journals as a tool to create meaning. The application of story and story culture in higher education, academia and management contexts will be presented. As an example, an old Punjabi tale will be adapted for use when managing and inspiring teams in the workplace. Storytelling is experiencing a revival and being used in the corporate sector to ignite action in knowledge-era organisations. PMID- 29338419 TI - A Review of Health Information Management Education in China. PMID- 29338421 TI - A Decade of Casemix Funding in Victoria. PMID- 29338420 TI - Curtin University of Technology, Perth, Western Australia. PMID- 29338422 TI - Professional Development - South Australian Branch of HIMAA Update. PMID- 29338424 TI - International Federation of Health Records Organizations (IFHRO) - Newsletter. PMID- 29338423 TI - Production of thermostable multiple enzymes from Bacillus amyloliquefaciens KUB29. AB - A strain of Bacillus amyloliquefaciens KUB29 was identified by 16S ribosomal RNA sequencing (Genbank: MF772779.1). Production of thermostable protease, amylase and lipase were done by the isolated strain. The produced enzymes were partially purified by ammonium precipitation followed by dialysis process. Protease and lipase enzymes are effectively used in bio-oil extraction from proteinaceous sample followed by transesterification to produce methyl ester. Amylase enzyme is widely used in food and laundry industry. The produced enzymes are active at thermophilic condition of 55 degrees C. Use of these enzymes in biofuel production process will make the process cleaner and greener. PMID- 29338425 TI - Correction: Re: Acknowledgment: A Profile of Coding Staff in Sydney Metropolitan Public Hospitals Health Information Management, Vol 32(2). AB - The authors would like to thank Adam Bennett, who collected the raw data used in this study for his thesis submitted for the degree of Bachelor of Applied Science (Health Information Management) (Honours) at The University of Sydney. PMID- 29338426 TI - Evolution, Not Revolution: Measurement and Management of Health Outcomes in New Zealand through Efficient Use of National Information Systems. AB - The development of health information systems is not always successful, and there is an emerging perception that money and time that could be better directed to patient care are being wasted on these systems. This paper examines the difficulties faced in creating successful information systems in health services, and suggests strategies for overcoming these difficulties. The development of information systems is a precursor to the use of data in the management of processes which lead towards improved health outcomes. It is argued that before embarking upon difficult and costly new developments, researchers should treat existing sources of data as their first point of call, and New Zealand's existing national data sources are described in detail. Ways in which these data are being used to develop outcome measures are discussed, and it is concluded that through a multidisciplinary approach existing resources could be utilised more efficiently and effectively to achieve this goal. PMID- 29338427 TI - Lipid nanoparticles for intranasal administration: application to nose-to-brain delivery. AB - INTRODUCTION: The blood brain barrier is a functional barrier allowing the entry into the brain of only essential nutrients, excluding other molecules. Its structure, although essential to keep the harmful entities out, is also a major roadblock for pharmacological treatment of brain diseases. Several alternative invasive drug delivery approaches, such as transcranial drug delivery and disruption of blood brain barrier have been explored, with limited success and several challenges. Intranasal delivery is a non-invasive methodology, which bypasses the systemic circulation, and, through the intra- and extra- neuronal pathways, provides direct brain drug delivery. Colloidal drug delivery systems, particularly lipidic nanoparticles offer several unique advantages for this goal . Areas covered: This review focuses on key brain diseases such as Alzheimer's disease, Parkinson's disease, Huntington's disease and amyotrophic lateral sclerosis, and provide a detailed overview of the current lipid nanoparticle based treatment options explored thus far. The review also delves into basic preparation, challenges and evaluation methods of lipid drug delivery systems. Expert opinion: Brain diseases present complex pathophysiology, in addition to the practically inaccessible brain tissues, hence according to the authors, a two pronged approach utilizing new target discovery coupled with new drug delivery systems such as lipid carriers must be adopted. PMID- 29338428 TI - HIMAA President Receives Award. PMID- 29338429 TI - Study of aflatoxicosis reduction: effect of Alchornea cordifolia on biomarkers in an aflatoxin B1 exposed rats. AB - The toxicity of aflatoxins results in cancer and liver disease. Several natural substances such as plants exhibited their ability to inhibit the initiation of aflatoxin carcinogenesis. The aim of this study was to evaluate the effect of Alchornea cordifolia on biomarkers in an aflatoxin B1 (AFB1) exposed rats. The contents of polyphenols, flavonoids and the antioxidant activity of A. cordifolia ethanolic leaf extract (EELac) were assessed. Groups of rats were treated orally with a daily dose of a mixture of AFB1 at a dose of 150 MUg/kg body weight and EELac (50, 100 and 300 mg/kg body weight) for 21 days. Biomarkers of AFB1, such as the AFB1-lysine adduct and aflatoxin M1 were assayed in blood and urine, respectively, using an HPLC system with a fluorescence detector. The contents of polyphenols and flavonoids were 6783.23 +/- 272.76 MUg EAG/g and 10.54 +/- 3.15% of dry matter, respectively. EELac showed a good antioxidant activity (IC50 = 12.65 +/- 0.13 MUg/mL). The administration of the mixture (AFB1 + EELac) at different doses significantly reduced the level of AFB1-lysine adduct from 14.04 +/- 2.1 to 4.13 +/- 0.9 ng/mg albumin and that of Aflatoxin M1 (AFM1) from 456 +/ 16 to 220 +/- 24 ng/mL (p <0.05). The rate of reduction was 70.58% for AFB1 lysine adduct and 51.75% for AFM1. A. cordifolia could be used in the prevention of toxicity induced by AFB1 on account of its high content in phenolic compounds. PMID- 29338430 TI - State-Level Point-of-Sale Tobacco News Coverage and Policy Progression Over a 2 Year Period. AB - BACKGROUND: Mass media content may play an important role in policy change. However, the empirical relationship between media advocacy efforts and tobacco control policy success has rarely been studied. We examined the extent to which newspaper content characteristics (volume, slant, frame, source, use of evidence, and degree of localization) that have been identified as important in past descriptive studies were associated with policy progression over a 2-year period in the context of point-of-sale (POS) tobacco control. METHOD: We used regression analyses to test the relationships between newspaper content and policy progression from 2012 to 2014. The dependent variable was the level of implementation of state-level POS tobacco control policies at Time 2. Independent variables were newspaper article characteristics (volume, slant, frame, source, use of evidence, and degree of localization) and were collected via content analysis of the articles. State-level policy environment contextual variables were examined as confounders. RESULTS: Positive, significant bivariate relationships exist between characteristics of news content (e.g., high overall volume, public health source present, local quote and local angle present, and pro-tobacco control slant present) and Time 2 POS score. However, in a multivariate model controlling for other factors, significant relationships did not hold. DISCUSSION: Newspaper coverage can be a marker of POS policy progression. Whether media can influence policy implementation remains an important question. Future work should continue to tease out and confirm the unique characteristics of media content that are most associated with subsequent policy progression, in order to inform media advocacy efforts. PMID- 29338432 TI - Working in Vanuatu. PMID- 29338431 TI - Medically induced hypertension, hypervolaemia and haemodilution for the treatment and prophylaxis of vasospasm following aneurysmal subarachnoid haemorrhage: systematic review. AB - PURPOSE: Arterial vasospasm is a major cause of death and long-term disability following subarachnoid haemorrhage (SAH). The use of medically induced hypertension, hypervolaemia and/or haemodilution is widely practiced for prophylaxis and treatment of vasospasm following SAH. We aimed to determine if the quality of available research is adequate to inform use of haemodynamic management strategies to prevent or treat vasospasm following SAH. METHODS: Individual searches of the following databases were conducted: The Cochrane Database of Systematic Reviews, The Cochrane Central Register of Controlled Trials, MEDLINE, EMBASE and OpenSIGLE. Pertinent randomised clinical trials and cohort studies comparing any element or combination thereof: medically induced hypertension, hypervolaemia, and haemodilution were included. Data were extracted using standardised proformas and risk of bias assessed using a domain-based risk of bias assessment tool. RESULTS: 348 study reports were identified by our literature search. Eight studies were included, three of which examined both volume expansion and medically induced hypertension. Three randomised clinical trials and two cohort studies examining prophylactic volume expansion were included. Two trials of prophylactic medically induced hypertension and two cohort studies were included. One trial and one cohort study of medically induced hypertension for treatment of established vasospasm was included. These trials demonstrated no significant difference in any of the clinical outcome measures studied. No trials of blood transfusion were included. CONCLUSIONS: There is currently insufficient evidence to determine the efficacy or non-efficacy of intravenous volume expansion, medically induced hypertension or blood transfusion for the treatment or prophylaxis of vasospasm following SAH. All of these approaches have been associated with adverse events, of unclear incidence. The current evidence base therefore cannot be used to reliably inform clinical practice. This is a priority for further research. PMID- 29338433 TI - In Vivo Ovarian Cancer Gene Therapy Using CRISPR-Cas9. AB - Clustered regularly interspaced short palindromic repeats (CRISPR)-caspase 9 (Cas9) genome editing technology holds great promise for the field of human gene therapy. However, a lack of safe and effective delivery systems restricts its biomedical application. Here, a folate receptor-targeted liposome (F-LP) was used to deliver CRISPR plasmid DNA co-expressing Cas9 and single-guide RNA targeting the ovarian cancer-related DNA methyltransferase 1 (DNMT1) gene (gDNMT1). F-LP efficiently bound the gDNMT1 plasmid and formed a stable complex (F-LP/gDNMT1) that was safe for injection. F-LP/gDNMT1 effectively mutated endogenous DNMT1 in vitro, and then expressed the Cas9 endonuclease and downregulated DNMT1 in vivo. The tumor growth of both paclitaxel-sensitive and -resistant ovarian cancers were inhibited by F-LP/gDNMT1, which shows fewer adverse effects than paclitaxel injection. Therefore, CRISPR-Cas9-targeted DNMT1 manipulation may be a potential therapeutic regimen for ovarian cancer, and lipid-mediated delivery systems represent promising delivery vectors of CRISPR-Cas9 technology for precise genome editing therapeutics. PMID- 29338434 TI - Standardising Client Identification across Adelaide Public Hospitals - An Update. AB - To be able to integrate health information across multiple systems and locations, it is essential that the collection and maintenance of key client identifying demographic data be standardised. South Australia is now moving towards a rigorous approach of client identification across the eight public metropolitan hospitals to support the rollout of a clinical information system. The system is being implemented for all clinical services and an estimated 8,000 doctors, nurses and allied health professionals have been trained in its use. This paper discusses the development and scope of a new set of client identification data standards (for hospitals only) that have been designed to support this project. PMID- 29338436 TI - The Value of Continuing Professional Development. PMID- 29338435 TI - Three new diphenyl ether derivatives from the fermentation products of an endophytic fungus Phomopsis fukushii. AB - Three new diphenyl ethers (1-3), together with four known isopentylated diphenyl ethers derivatives (4-7), were isolated from the fermentation products of an endophytic fungus Phomopsis fukushii. Their structures were elucidated by spectroscopic methods, including extensive 1D and 2D NMR techniques. Compounds 1 3 were evaluated for their anti-methicillin-resistant Staphylococcus aureus (anti MRSA) activity. The results revealed that compounds 1 and 2 showed strong inhibitions with inhibition zone diameters (IZD) of 20.2 +/- 2.5 mm and 17.9 +/- 2.2 mm, respectively. Compound 3 also showed good inhibition with IZD 15.2 +/- 1.8 mm. The IZD data of compound 1 is close to that of positive control with IZD 21.9 +/- 2.1 mm. PMID- 29338438 TI - Challenges in adult vaccination. AB - Life-long primary prevention interventions beginning and continuing throughout an individual's lifetime are increasingly seen as key to meeting the global healthcare challenges that accompany demographic changes - a concept referred to as "Healthy aging". In this perspective, vaccination is seen as part of a triad, together with healthy diet and exercise. Current adult vaccine coverage is lower than target vaccination rates in most developed countries, and so vaccine preventable diseases continue to present a substantial burden on health and healthcare resources, especially in older individuals. In part, this is due to lack of knowledge and understanding of the benefits of vaccination, inconsistent recommendations by providers and uncertainties about cost benefits. However, lower vaccine effectiveness in older adults plays a part, and new vaccines with novel characteristics to improve effectiveness in older adults are required. A life-course immunization approach to ensure optimal vaccine uptake across adults of all ages can be expected to reduce morbidity and mortality in later life. To achieve this, greater emphasis on public and healthcare provider education is necessary, based on appropriate economic analyses that demonstrate the overall value of vaccination. This article introduces the technical, economic, political and demographic issues that make establishing effective adult vaccination programs such a difficult, but pressing issue, and outlines some of the steps that are now being taken to address them. Key messages Life-long preventive activities that start and continue throughout life are essential, especially as the world's population is "getting older". This "Healthy aging" approach includes not only healthy diet and physical exercise; vaccination is critical in reducing some infectious diseases and their complications. Many adults, especially older adults (who have lower immunity than younger people) develop infections such as influenza and shingles that could potentially be prevented through vaccination. This review provides a perspective on the challenges in delivering a life-course immunization program. While some vaccines are less effective in older people, newer vaccines have been developed which provide stronger and longer protection in older patients than standard existing vaccines. However, the benefits of vaccination can only be realized if the vaccines are recommended and used. For that purpose, greater education of patients and their healthcare providers is necessary. Better knowledge of vaccines and making sure that all adults are up to date with all their recommended vaccines is an essential part of "Healthy aging". This should prevent not only vaccine-preventable diseases but also reduce the risk of complications in later life. PMID- 29338437 TI - Elderly population have a decreased aneurysmal subarachnoid hemorrhage incidence rate than Middle aged population: a descriptive analysis of 8,144 cases in mainland China. AB - PURPOSE: Rupture of an intracranial aneurysm is a life-threatening acute cerebrovascular event. The purpose of this study was to investigate whether aneurysmal subarachnoid haemorrhage (SAH) incidence rate is higher or lower in elderly population than in middle aged population. MATERIALS AND METHODS: Aneurysmal SAH cases were collected retrospectively from the archives of 21 hospitals in Mainland China. All the cases were collected from September 2016 and backward consecutively for a period of time up to 8 years. SAH was initially diagnosed by brain computed tomography (CT). CT angiography (CTA) or digital subtraction angiography (DSA) was followed and SAH was confirmed to be due to cerebral aneurysm rupture. For cases when multiple bleeding occurred, the age of the first SAH was used in this study. The total incidence from all hospitals at each age group were summed together for females and males respectively; then adjusted by the total population number at each age group for females and males which was from the 2010 population census of the People's Republic of China. RESULTS: In total there were 8,144 cases of intracranial aneurysmal SAH, with 4,861 females and 3,283 males. For females the relative aneurysmal SAH incidence rate started to decrease after around 65 years old, while for males the relative aneurysmal SAH incidence rate started to decrease after around 53 years old. CONCLUSION: Our data tentatively suggest elderly patients may be at a reduced risk of rupture compared with patients who are younger while have similar other risk factors. PMID- 29338439 TI - Masterclass Education Program of the Clinical Coders' Society of Australia Ltd (CCSA). PMID- 29338441 TI - Across the Tasman and beyond. PMID- 29338440 TI - Selective progesterone receptor modulators: current applications and perspectives. AB - Selective progesterone receptor modulators (SPRMs) are steroid progesterone receptor ligands able to induce agonistic or antagonistic activities. Mifepristone, the class leader, was primarily used for pregnancy termination from the 1980s. Emergency contraception with extended activity was the second major development 30 years later, with mifepristone in some countries and ulipristal acetate world-wide. More recently, ulipristal acetate was released for the treatment of myoma-related uterine bleeding. In addition to a very rapid cessation of bleeding, SPRMs allow a decrease in myoma volume, as do gonadotropin releasing hormone analogs. However, estradiol secretion is not blunted by SPRMs. This offers new alternatives for myoma treatment, especially in women close to menopause. In conclusion, use of SPRMs has allowed significant progress in emergency contraception and treatment of myoma-related symptoms. Numerous future perspectives in women's health care are currently under evaluation. PMID- 29338442 TI - HIMAA Continuing Professional Development Planning Day. PMID- 29338443 TI - Barriers to Acupuncture Use Among Breast Cancer Survivors: A Cross-Sectional Analysis. AB - INTRODUCTION: Increasing evidence suggests that acupuncture may be helpful to manage common symptoms and treatment side effects among breast cancer (BC) survivors. Acupuncture usage among BC survivors remains low with little known about the barriers to its utilization. We evaluated perceived barriers to acupuncture use among BC survivors and explored the sociodemographic variations of such barriers. METHODS: We conducted a cross-sectional analysis at an urban academic cancer center on 593 postmenopausal women with a history of stage I-III hormone receptor-positive BC who were taking or had taken an aromatase inhibitor. We used the modified Attitudes and Beliefs about Complementary and Alternative Medicine instrument to evaluate patients' perceived barriers to acupuncture. Multiple linear regression analysis was performed to determine sociodemographic factors associated with perceived barrier scores. RESULTS: The most common barriers were lack of knowledge about acupuncture (41.6%), concern for lack of insurance coverage (25.0%), cost (22.3%), and difficulty finding qualified acupuncturists (18.6%). Compared with whites, minority patients had higher perceived barriers to use acupuncture (beta coefficient = 1.63, 95% confidence interval = 0.3-2.9, P = .013). Patients with lower education had higher barriers to use acupuncture (beta coefficient = 4.23, 95% confidence interval = 3.0-5.4, P < .001) compared with patients with college education or above. CONCLUSION: Lack of knowledge and concerns for insurance coverage and cost are the common barriers to acupuncture use among BC survivors, especially among minority patients with lower education. Addressing these barriers may lead to more equitable access to acupuncture treatment for BC survivors from diverse backgrounds. PMID- 29338444 TI - The First Approved Gene Therapy Product for Cancer Ad-p53 (Gendicine): 12 Years in the Clinic. AB - Gendicine (recombinant human p53 adenovirus), developed by Shenzhen SiBiono GeneTech Co. Ltd., was approved in 2003 by the China Food and Drug Administration (CFDA) as a first-in-class gene therapy product to treat head and neck cancer, and entered the commercial market in 2004. Gendicine is a biological therapy that is delivered via minimally invasive intratumoral injection, as well as by intracavity or intravascular infusion. The wild-type (wt) p53 protein expressed by Gendicine-transduced cells is a tumor suppressor that is activated by cellular stress, and mediates cell-cycle arrest and DNA repair, or induces apoptosis, senescence, and/or autophagy, depending upon cellular stress conditions. Based on 12 years of commercial use in >30,000 patients, and >30 published clinical studies, Gendicine has exhibited an exemplary safety record, and when combined with chemotherapy and radiotherapy has demonstrated significantly higher response rates than for standard therapies alone. In addition to head and neck cancer, Gendicine has been successfully applied to treat various other cancer types and different stages of disease. Thirteen published studies that include long-term survival data showed that Gendicine combination regimens yield progression-free survival times that are significantly longer than standard therapies alone. Although the p53 gene is mutated in >50% of all human cancers, p53 mutation status did not significantly influence efficacy outcomes and long-term survival rate for Ad-p53-treated patients. To date, Shenzhen SiBiono GeneTech has manufactured 41 batches of Gendicine in compliance with CFDA QC/QA requirements, and 169,571 vials (1.0 * 1012 vector particles per vial) have been used to treat patients. No serious adverse events have been reported, except for vector associated transient fever, which occurred in 50-60% of patients and persisted for only a few hours. The manufacturing accomplishments and clinical experience with Gendicine, as well as the understanding of its cellular mechanisms of action and implications, could provide valuable insights for the international gene therapy community and add valuable data to promote further developments and advancements in the gene therapy field. PMID- 29338445 TI - Investigational inhaled therapies for non-CF bronchiectasis. AB - INTRODUCTION: Bronchiectasis not related to cystic fibrosis (non-CF bronchiectasis) are associated with a high unmet therapeutic need due to the lack of specifically authorized medications, especially via the inhalation route. In non-CF bronchiectasis chronic infection with Pseudomonas aeruginosa is common and favored by the persistent local inflammation and viscid sputum production. Therefore inhaled antibiotics, mucolytics or anti-inflammatory agents could represent appropriate therapeutic interventions in this setting Areas covered: This review herein discusses the inhaled therapies currently under investigation for non-CF bronchiectasis and their potential therapeutic positioning in exacerbation versus stable state. Expert opinion: Inhaled antipseudomonal antibiotics are of promising efficacy, but further efforts should also be made to detect bactericidal approaches against Burkholderia cepacia complex, and to interfere chronic inflammation topically. PMID- 29338446 TI - The latest animal models of ovarian cancer for novel drug discovery. AB - INTRODUCTION: Epithelial ovarian cancer is a heterogeneous disease classified into five subtypes, each with a different molecular profile. Most cases of ovarian cancer are diagnosed after metastasis of the primary tumor and are resistant to traditional platinum-based chemotherapeutics. Mouse models of ovarian cancer have been utilized to discern ovarian cancer tumorigenesis and the tumor's response to therapeutics. Areas covered: The authors provide a review of mouse models currently employed to understand ovarian cancer. This article focuses on advances in the development of orthotopic and patient-derived tumor xenograft (PDX) mouse models of ovarian cancer and discusses current humanized mouse models of ovarian cancer. Expert opinion: The authors suggest that humanized mouse models of ovarian cancer will provide new insight into the role of the human immune system in combating and augmenting ovarian cancer and aid in the development of novel therapeutics. Development of humanized mouse models will take advantage of the NSG and NSG-SGM3 strains of mice as well as new strains that are actively being derived. PMID- 29338447 TI - Changes to the ACHS Evaluation and Quality Improvement Program (EQuIP) Standards for Information Management. PMID- 29338449 TI - Operation Zipit! Privacy is a Hot Topic! PMID- 29338448 TI - The safety of palbociclib for the treatment of advanced breast cancer. AB - INTRODUCTION: Despite improvements in the diagnosis and management of early stage breast cancer, about one third of the patients still progress to metastatic disease. Most of the patients with metastatic breast cancer have a hormone receptor positive and human epidermal growth factor receptor 2 negative subtype with a median survival of more than 3 years. For these patients, endocrine therapy with its favorable toxicity profile is the current standard of care. However, patients with metastatic breast cancer have an incurable disease. Therefore, not only efficacy but also quality of life are key when selecting a therapy regimen. Areas covered: This paper aims to discuss the efficacy and toxicity profile of the new endocrine-based therapy option palbociclib together with endocrine treatment. Expert opinion: The addition of targeted agents like palbociclib can overcome intrinsic or acquired resistance to endocrine therapy and substantially prolong progression free survival. The combination of palbociclib plus endocrine therapy is associated with a tolerable and well manageable toxicity profile as well as maintenance of quality of life. Thus, addition of palbociclib to endocrine therapy offers a new and important treatment option for hormone receptor positive metastatic breast cancer. PMID- 29338450 TI - How can primary care physicians enhance the early diagnosis of rheumatic diseases? PMID- 29338451 TI - The Use of Clinical Classifications in the Nordic Countries. AB - This article gives an overview of the current use of the main clinical classifications in the Nordic countries. A brief introduction describes the background and content of Nordic co-operation in the areas of health statistics and health-related classifications. The use of the current international classifications is well established in the Nordic countries. Some Nordic classifications have been developed in co-operation with maintenance and updating performed as a joint Nordic responsibility. PMID- 29338452 TI - An update on diagnostic and prognostic biomarkers for traumatic brain injury. AB - INTRODUCTION: Traumatic brain injury (TBI) is a major worldwide neurological disorder of epidemic proportions. To date, there are still no FDA-approved therapies to treat any forms of TBI. Encouragingly, there are emerging data showing that biofluid-based TBI biomarker tests have the potential to diagnose the presence of TBI of different severities including concussion, and to predict outcome. Areas covered: The authors provide an update on the current knowledge of TBI biomarkers, including protein biomarkers for neuronal cell body injury (UCH L1, NSE), astroglial injury (GFAP, S100B), neuronal cell death (alphaII-spectrin breakdown products), axonal injury (NF proteins), white matter injury (MBP), post injury neurodegeneration (total Tau and phospho-Tau), post-injury autoimmune response (brain antigen-targeting autoantibodies), and other emerging non-protein biomarkers. The authors discuss biomarker evidence in TBI diagnosis, outcome prognosis and possible identification of post-TBI neurodegernative diseases (e.g. chronic traumatic encephalopathy and Alzheimer's disease), and as theranostic tools in pre-clinical and clinical settings. Expert commentary: A spectrum of biomarkers is now at or near the stage of formal clinical validation of their diagnostic and prognostic utilities in the management of TBI of varied severities including concussions. TBI biomarkers could serve as a theranostic tool in facilitating drug development and treatment monitoring. PMID- 29338453 TI - Proteomic serum biomarkers for neuromuscular diseases. AB - INTRODUCTION: The clinical evaluation of neuromuscular symptoms often includes the assessment of altered blood proteins or changed enzyme activities. However, the blood concentration of many muscle-derived serum markers is not specific for different neuromuscular disorders and also shows alterations in the course of these diseases. Thus, the establishment of more reliable biomarker signatures for improved muscle diagnostics is required. Areas covered: To address the lack of muscle disease-specific marker molecules, mass spectrometry-based proteomics was applied to the systematic identification and biochemical characterization of new serum biomarker candidates. This article outlines serum proteomics in relation to neuromuscular disorders and reviews the bioanalytical results from recent proteomic profiling studies of representative neuromuscular disorders, including motor neuron disease, muscular dystrophies and sarcopenia of old age. Pathophysiological changes in the skeletal muscle proteome are reflected by serum alterations in a variety of sarcomeric proteins, metabolic enzymes and signaling proteins. Expert commentary: Based on the proteomic identification of actively secreted or passively released skeletal muscle proteins following pathophysiological insults, new biomarker candidates can now be used to develop liquid biopsy procedures for superior diagnostic approaches, design novel prognostic tools and establish more reliable methods for the systematic evaluation of experimental therapies to treat neuromuscular disease. PMID- 29338455 TI - Current treatment options for meningioma. AB - INTRODUCTION: With an annual incidence of 5/100,000, meningioma is the most frequent primary tumor of the central nervous system. Risk factors are radiotherapy and hormone intake. Most meningiomas are grade I benign tumors, but up to 15% are atypical and 2% anaplastic according to the WHO 2016 histological criteria. Areas covered: This review details the current standard therapy based on international guidelines and recent literature, and describes new approaches developed to treat refractory cases. First-line treatments are observation and surgery, but adjuvant radiotherapy/radiosurgery is discussed for atypical and indicated for anaplastic meningiomas. The most problematic cases include skull base meningiomas that enclose vasculo-nervous structures and surgery- and radiation-refractory tumors that present with significant morbidity and mortality. The treatment of recurrent tumors is based on radiotherapy and repeated surgery. Systematic therapies are not effective in general but several clinical trials are ongoing. Expert commentary: Molecular characterization of the tumors, based on genetic mutations such as NF2, SMO, TERT, TRAF7, and on the methylation profile are developing, completing the histological classification and giving new insights into prognosis and treatment options. PMID- 29338457 TI - What Role Should HIMAA Take in the Continuing Professional Development (CPD) of Health Information Managers? PMID- 29338454 TI - Chemical, computational and functional insights into the chemical stability of the Hedgehog pathway inhibitor GANT61. AB - This work aims at elucidating the mechanism and kinetics of hydrolysis of GANT61, the first and most-widely used inhibitor of the Hedgehog (Hh) signalling pathway that targets Glioma-associated oncogene homologue (Gli) proteins, and at confirming the chemical nature of its bioactive form. GANT61 is poorly stable under physiological conditions and rapidly hydrolyses into an aldehyde species (GANT61-A), which is devoid of the biological activity against Hh signalling, and a diamine derivative (GANT61-D), which has shown inhibition of Gli-mediated transcription. Here, we combined chemical synthesis, NMR spectroscopy, analytical studies, molecular modelling and functional cell assays to characterise the GANT61 hydrolysis pathway. Our results show that GANT61-D is the bioactive form of GANT61 in NIH3T3 Shh-Light II cells and SuFu-/- mouse embryonic fibroblasts, and clarify the structural requirements for GANT61-D binding to Gli1. This study paves the way to the design of GANT61 derivatives with improved potency and chemical stability. PMID- 29338456 TI - An update on the safety of nutraceuticals and effects on lipid parameters. AB - INTRODUCTION: Cardiovascular diseases (CVDs) are the leading cause of mortality and disability in developed countries, whereas a large portion of patients in primary prevention have uncontrolled level of CVD risk factors. Dietary supplementation with bioactive natural compounds with demonstrated lipid-lowering effects is currently supported by the international guidelines for CVD prevention and some international expert panels. Areas covered: This review provides insights on issues concerning the tolerability and safety of the most commonly used nutraceuticals with demonstrated lipid-lowering effect in humans. They will be then divided into three main categories according to their mechanism of action (cholesterol synthesis inhibitors, intestinal cholesterol absorption inhibitors, and LDL-C excretion stimulants) and their pharmacological profile will be discussed. Expert opinion: A growing body of preclinical, epidemiological and clinical evidence has defined the tolerability and safety profile of the most commonly used lipid-lowering nutraceuticals. In the most part of cases, the side effects are mild and reversible. However, detailed knowledge of specific health risks and pharmacological interactions for each individual compound is needed for the management of frail patients, such as children, elderly, patients with liver or renal failure, and patients consuming numerous drugs. PMID- 29338458 TI - Tenofovir alafenamide (TAF) treatment of HBV, what are the unanswered questions? AB - INTRODUCTION: Tenofovir disoproxil fumarate (TDF), an ester prodrug of tenofovir (TFV), is one of the recommended drugs for chronic hepatitis B (CHB) patients. However, reduced kidney function and loss of bone mineral density have been reported in some CHB patients treated with TDF. Consequent to these safety issues, tenofovir alafenamide (TAF) [Vemlidy(r)], a phosphonate prodrug of TFV, was developed for the treatment of CHB patients. Areas covered: The favourable pharmacological profile of TAF allows a marked reduction in dosage (25 mg/day) thus reducing systemic exposure to tenofovir and improving the bone and renal safety, keeping however the same virological efficacy, compared to TDF 300 mg/day. In two ongoing 96-week phase III trials in mainly treatment-naive HBeAg positive or -negative patients, TAF showed similar viral suppression but was associated with significantly higher alanine aminotransferase normalization rates and more favourable renal and bone safety compared to TDF. In a 48-week TAF switch study enrolling patients treated with TDF for 96 weeks, glomerular, tubular and bone safety parameters rapidly improved while virological suppression was maintained. Expert commentary: Waiting long-term large scale clinical practice studies aimed to confirm these advantages, TAF represents an helpful treatment option for both naive and TDF-exposed CHB patients. PMID- 29338460 TI - Research in Health Information Management. PMID- 29338459 TI - An interprofessional collaborative practice approach to transform heart failure care: An overview. AB - Interprofessional collaborative practice (IPCP) approaches to health care are increasingly recognized as necessary to achieve the Triple Aim-improved health of the population, improved patient care experience, and improved affordability of care. This paper introduces and provides an overview of an interprofessional intervention to improve a healthcare team, healthcare system, and patient outcomes for hospitalized patients with heart failure. In this paper, we describe the overall project resulting from a workforce training grant and the proposed series of future papers resulting from the interprofessional intervention. Collectively, these papers will describe the results of a unique IPCP approach on team, system, and patient outcomes as well as describe and compare organizational and leadership traits that affect collaborative practice. Our hope is that the intervention approaches, evaluation results, and lessons learned described in these papers will help further the efforts to spread IPCP approaches to transforming health care. PMID- 29338461 TI - mTOR dysregulation and tuberous sclerosis-related epilepsy. AB - INTRODUCTION: The mammalian target of rapamycin (mTOR) pathway has emerged as a key player for proper neural network development, and it is involved in epileptogenesis triggered by both genetic or acquired factors. Areas covered. The robust mTOR signaling deregulation observed in a large spectrum of epileptogenic developmental pathologies, such as focal cortical dysplasias and tuberous sclerosis complex (TSC), has been linked to germline and somatic mutations in mTOR pathway regulatory genes, increasing the spectrum of 'mTORopathies'. The significant advances in the field of TSC allowed for the validation of emerging hypotheses on the mechanisms of epileptogenesis and the identification of potential new targets of therapy. Recently, a double-blind phase III randomized clinical trial on patients with TSC related epilepsy, demonstrated that adjunctive treatment with mTOR inhibition is effective and safe in reducing focal drug resistant seizures. Expert commentary. mTOR signaling dysregulation represents a common pathogenic mechanism in a subset of malformations of cortical development, sharing histopathological and clinical features, including epilepsy, autism, and intellectual disability. EXIST-3 trial provided the first evaluation of the optimal dosage, conferring a higher chance of reducing seizure frequency and severity, with adverse events being similar to what observed with lower dosages. PMID- 29338463 TI - Cattanach v Melchior and Implications for Health Information Managers. PMID- 29338462 TI - Rethinking revascularization in patients with stable angina. AB - INTRODUCTION: Traditional and current perception for benefit of percutaneous coronary intervention (PCI) is that patients with stable angina will obtain symptom relief as well as improved exercise capacity after percutaneous revascularization. This common clinical perception is put to test in the ORBITA trial, the first blinded, randomized placebo-controlled clinical study ever conducted.Areas covered: Coronary artery disease, percutaneous coronary intervention, medical therapy.Expert Commentary: The authors found no significant improvement in exercise time, functional status, angina relief and quality of life in the PCI group compared with placebo. A possible explanation for this neutral outcome is that PCI is overvalued in symptom relief and to some extent explained by placebo effects or transient non-cardiac causes of chest pain. However, the chosen exercise tolerance improvement may have been too optimistic in a population with good functional capacity. Also PCI was anatomic and not functional driven, and follow-up duration may have been to short to wear off the placebo effect. While the evidence is not sufficient to alter revascularization guidelines, the message of this 200-patient, high-quality study is potent and will reverberate throughout the cardiology community and warrants further study. PMID- 29338464 TI - Hearing aid technology: model-based concepts and assessment. PMID- 29338465 TI - Standards: Flag Waving or Marking the Foundations? PMID- 29338466 TI - Valbenazine as the first and only approved treatment for adults with tardive dyskinesia. AB - INTRODUCTION: Valbenazine is a selective VMAT2 inhibitor that the FDA approved in April 2017 for the specific treatment of tardive dyskinesia (TD), a movement disorder commonly caused by dopamine blocking agents. Valbenazine acts to decrease dopamine release, reducing excessive movement found in TD. Areas covered: This drug profile reviews the development of valbenazine and the clinical trials that led to its approval as the first treatment specific to TD. The literature search was performed with the PubMed online database. Expert commentary: Two clinical trials assessing the efficacy of valbenazine have shown the reduction of antipsychotic-induced involuntary movement. No life threatening adverse effects were found. Data from a 42-week extension study demonstrated sustained response. PMID- 29338467 TI - The Pharmacy Management Information System at the Department of Veterans' Affairs. AB - This article describes the pharmacy management information systems environment currently being implemented at the Australian Department of Veterans' Affairs (DVA), and focuses on the objectives and design of the medication management program's management of information. As the system is new, it is too early to predict the difference that it will make to the operations and policy initiatives within the Medication Management section. The anticipated benefits are discussed. The user reaction, and the uses of these management data, are part of an ongoing benefits realisation study and the subject of a future article. PMID- 29338468 TI - Inhibition of the proteasome activity by graphene oxide contributes to its cytotoxicity. AB - Due to its hydrophobicity and other unique physicochemical properties, graphene oxide (GO) has been extensively utilized in various biological applications. However, introducing nanomaterials into the biological environment may raise serious risk in terms of nanotoxicity, leading to some unintended changes to the structure and the function of other biomolecules. This study investigates the interaction of GO with the ubiquitin-proteasome system, one of the essential machineries in the cellular metabolism, using a combination of experimental and computational approaches. The experimental results show that GO could adsorb the 20S proteasome, causing a dose-dependent suppression of the proteolytic activity of proteasome. This adverse effect eventually disturbed other important cellular activities relevant to cell cycle and survival. Meanwhile, the molecular dynamics simulations revealed that when 20S proteasome was adsorbed onto the graphene surface, the central gate in the outer ring (alpha-subunit) for the entry and the exit of the peptide ligand to the protease active site was effectively blocked. These findings of GO induced functional disturbance of 20S proteasome provides a novel perspective to understand the molecular mechanism of GO's cytotoxicity, which might further promote applications of GO in potential therapies for various cancers due to the abnormal elevation of the relevant proteasome activities. PMID- 29338469 TI - Assessing efficacy of day 3 embryo time-lapse algorithms retrospectively: impacts of dataset type and confounding factors. AB - This study investigated the efficacy of four published day 3 embryo time-lapse algorithms based on different types of datasets (known implantation data [KID] and single embryo transfer [SET]), and the confounding effect of female age and conventional embryo morphology. Four algorithms were retrospectively applied to three types of datasets generated at Fertility North between February 2013 and December 2014: (a) KID dataset (n = 270), (b) a subset of SET (n = 144, end-point = implantation), and (c) SET (n = 144, end-point = live birth), respectively. All four algorithms showed progressively reduced predictive power (expressed as area under the receiver operating characteristics curve and 95% confidence interval [CI]) after application to the three datasets (a-c): Liu (0.762 [0.701-0.824] vs. 0.724 [0.641-0.807] vs. 0.707 [0.620-0.793]), KIDScore (0.614 [0.539-0.688] vs. 0.548 [0.451-0.645] vs. 0.536 [0.434-0.637]), Meseguer (0.585 [0.508-0.663] vs. 0.56 [0.462-0.658] vs. 0.549 [0.445-0.652]), and Basile (0.582 [0.505-0.659] vs. 0.519 [0.421-0.618] vs. 0.509 [0.406-0.612]). Furthermore, using KID dataset, the association (expressed as odds ratio and 95% CI) between time-lapse algorithms and implantation outcomes lost statistical significance after adjusting for conventional embryo morphology and female age in 3 of the 4 algorithms (KIDScore 1.832 [1.118-3.004] vs. 1.063 [0.659-1.715], Meseguer 1.150 [1.021-1.295] vs. 1.122 [0.981-1.284] and Basile 1.122 [1.008-1.249] vs. 1.038 [0.919-1.172]). In conclusion, SET is a preferred dataset to KID when developing or validating time lapse algorithms, and day 3 conventional embryo morphology and female age should be considered as confounding factors. PMID- 29338470 TI - Measurement error in the Liebowitz Social Anxiety Scale: results from a general adult population in Japan. AB - OBJECTIVE: Although the self-report version of Liebowitz Social Anxiety Scale (LSAS) is frequently used to measure social anxiety, data is lacking on the smallest detectable change (SDC), an important index of measurement error. We therefore aimed to determine the SDC of LSAS. METHODS: Japanese adults aged 20-69 years were invited from a panel managed by a nationwide internet research agency. We then conducted a test-retest internet survey with a two-week interval to estimate the SDC at the individual (SDCind) and group (SDCgroup) levels. RESULTS: The analysis included 1300 participants. The SDCind and SDCgroup for the total fear subscale (scoring range: 0-72) were 23.52 points (32.7%) and 0.65 points (0.9%), respectively. The SDCind and SDCgroup for the total avoidance subscale (scoring range: 0-72) were 32.43 points (45.0%) and 0.90 points (1.2%), respectively. The SDCind and SDCgroup for the overall total score (scoring range: 0-144) were 45.90 points (31.9%) and 1.27 points (0.9%), respectively. CONCLUSIONS: Measurement error is large and indicate the potential for major problems when attempting to use the LSAS to detect changes at the individual level. These results should be considered when using the LSAS as measures of treatment change. PMID- 29338472 TI - AHIMA Today. PMID- 29338471 TI - Transjugular intrahepatic portosystemic stent shunt placement and embolization for hemorrhage associated with rupture of anorectal varices. AB - Portal hypertension can lead to ectopic varices, which occur most frequently in the rectum. Rectal variceal bleeding in patients with portal hypertension is rare but can be life-threatening if not diagnosed and treated in a timely manner. However, no specific treatment guidelines have been established for rectal variceal bleeding. We herein report a case involving a woman with portal hypertension due to autoimmune liver disease who was successfully treated with a transjugular intrahepatic portosystemic stent shunt and variceal embolization. We recommend treatment of refractory ectopic variceal bleeding with a transjugular intrahepatic portosystemic stent shunt in combination with embolization. PMID- 29338473 TI - Phylogenomics of tomato chloroplasts using assembly and alignment-free method. AB - Phylogenetics and population genetics are central disciplines in evolutionary biology. Both are based on the comparison of single DNA sequences, or a concatenation of a number of these. However, with the advent of next-generation DNA sequencing technologies, the approaches that consider large genomic data sets are of growing importance for the elucidation of evolutionary relationships among species. Among these approaches, the assembly and alignment-free methods which allow an efficient distance computation and phylogeny reconstruction are of great importance. However, it is not yet clear under what quality conditions and abundance of genomic data such methods are able to infer phylogenies accurately. In the present study we assess the method originally proposed by Fan et al. for whole genome data, in the elucidation of Tomatoes' chloroplast phylogenetics using short read sequences. We find that this assembly and alignment-free method is capable of reproducing previous results under conditions of high coverage, given that low frequency k-mers (i.e. error prone data) are effectively filtered out. Finally, we present a complete chloroplast phylogeny for the best data quality candidates of the recently published 360 tomato genomes. PMID- 29338474 TI - Subarachnoid space diameter in chromosomally abnormal fetuses at 11-13 weeks' gestation. AB - OBJECTIVES: To examine the subarachnoid space diameters in chromosomally abnormal fetuses at 11-13 weeks' gestation. METHODS: Stored three-dimensional (3D) ultrasound volumes of the fetal head at 11-13 weeks' gestation from 407 euploid and 88 chromosomally abnormal fetuses (trisomy 21, n = 40; trisomy 18, n = 19; trisomy 13, n = 7; triploidy, n = 14; Turner syndrome, n = 8) were analyzed. The subarachnoid space diameters, measured in the sagittal and transverse planes of the fetal head, in relation to biparietal diameter (BPD) in each group of aneuploidies was compared to that in euploid fetuses. A total of 20 head volumes were randomly selected and all the measurements were recorded by two different observers to examine the interobserver variability in measurements. RESULTS: In euploid fetuses, the anteroposterior, transverse and sagittal diameters of the subarachnoid space increased with BPD. The median of the observed to expected diameters for BPD were significantly increased in triploidy and trisomy 13 but were not significantly altered in trisomies 21 and 18 or Turner syndrome. In triploidy, the subarachnoid space diameters for BPD were above the 95th centile of euploid fetuses in 92.9% (13 of 14) cases. The intraclass reliability or agreement was excellent for all three subarachnoid space diameters. CONCLUSION: Most fetuses with triploidy at 11-13 weeks' gestation demonstrate increased subarachnoid space diameters. PMID- 29338475 TI - Advances in atrioventricular and interventricular optimization of cardiac resynchronization therapy - what's the gold standard? AB - INTRODUCTION: Cardiac resynchronization therapy (CRT) is one of the most important advances in heart failure management in the last twenty years. Approximately one-third of patients appear not to respond to therapy. Although there are a number of possible mechanisms for non-response, an important factor is suboptimal atrioventricular (AV) and interventricular (VV) timing intervals. There remains controversy over whether routinely optimizing intervals is necessary and there is no agreed gold standard methodology. Optimization has classically been performed using echocardiography which has limits related to resource use, time-cost and variable reproducibility. Newer optimization methods using device-based sensors and algorithms show promise in reducing heart-failure hospitalization compared with echocardiography. Areas covered: This review outlines the rationale for optimization, the principles of AV and VV optimization, the standard echocardiographic approach and newer device-based algorithms and the evidence base for their use. Expert commentary: The incremental gains of optimization are likely to be real, but small, compared to the overall improvement gained from cardiac resynchronization itself. At this time routine optimization may not be mandatory but should be performed where there is no response to CRT. Device-based optimization algorithms appear to be practical and in some cases, deliver superior clinical outcomes compared to echocardiography. PMID- 29338476 TI - Evaluation and efficacy of carbon dioxide therapy (carboxytherapy) versus mesolipolysis in the treatment of cellulite. AB - BACKGROUND: Cellulite is an irregular alteration of the skin surface giving it cottage cheese appearance. Carboxytherapy is transcutaneous infusion of carbon dioxide into the affected site. Mesolipolysis aims to remove cellulite and improve skin texture. AIMS: To verify the efficacy and safety of carboxytherapy versus mesolipolysis using phosphatidylcholine (PPC) in treatment of cellulite in thighs area. METHODS: Forty-eight female patients with different grades of cellulite at thighs area were enrolled in this study. They were classified into two groups: group A received subcutaneous infusion of carboxytherapy, and group B was treated with mesolipolysis using PPC. Each group received six sessions at weekly intervals. sessions. The outcome measures and clinical assessment were based on cellulite grading scale and thigh circumference measurements. Standardized digital photography was taken before and after treatment. Patients were followed up for 6 months. RESULTS: After treatment, there was significant reduction in thigh circumference measurement p < 0.01 and cellulite grading scale p < 0.001 in both groups. The difference in cellulite grading scale and thigh circumference measurement in both groups was insignificant. CONCLUSIONS: Carboxytherapy and mesolipolysis are safe and effective in cellulite treatment. Carboxytherapy is a promising alternative therapeutic modality for cellulite treatment. PMID- 29338477 TI - Let the Race Begin! PMID- 29338478 TI - Gene-gene-environment interactions of prenatal exposed to environmental tobacco smoke, CYP1A1 and GSTs polymorphisms on full-term low birth weight: relationship of maternal passive smoking, gene polymorphisms, and FT-LBW. AB - OBJECTIVE: To examine the interaction effects of prenatal exposed to environmental tobacco smoke (ETS) and genotypes of cytochrome P4501A1 (CYP1A1), glutathione S-transferases (GSTs) on the risk of full-term low birth weight (FT LBW). STUDY DESIGN: We conducted a case-control study among pregnant women at two Women and Children's Hospitals in Guangdong, China (n = 910). Information was collected through interview, medical records review, and blood lab tests. Maternal selfreport and serum cotinine concentration were combined to define prenatal exposed to ETS. Logistic regression approach was applied for statistical analysis. RESULTS: Our results showed that regardless of genotypes, prenatal exposed to ETS significantly increased the risk of FT-LBW. Then, two-way interactions showed increased prevalence of FT-LBW in prenatal exposed to ETS mothers with the CYP1A1 variant genotype (MspI "CC"), or with GSTT1-null genotype. Furthermore, three-way interactions showed that women with CYP1A1 variant (MspI "TC" or BsrDI "AG") genotypes and GSTT1 "null" genotype had higher risk to give birth of FT-LBW. Additionally, among nonexposed ETS mothers, genotype did not independently confer adverse effects on FT-LBW. CONCLUSIONS: Our results revealed that prenatal exposed to ETS is independently associated with FT LBW while gene polymorphisms of CYP1A1 and GSTs merely play modified roles in this process. This study extends understanding of three-way interaction, and stresses the need to tobacco control toward pregnant women for better pregnant outcomes. PMID- 29338479 TI - Graphene oxide regulates cox2 in human embryonic kidney 293T cells via epigenetic mechanisms: dynamic chromosomal interactions. AB - To extend the applications of engineered nanomaterials, such as graphene oxide (GO), it is necessary to minimize cytotoxicity. However, the mechanisms underlying this cytotoxicity are unclear. Dynamic chromosomal interactions have been used to illustrate the molecular bases of gene expression, which offers a more sensitive and cutting-edge technology to elucidate complex biological processes associated with epigenetic regulations. In this study, the role of GO triggered chromatin interactions in the activation of cox2, a hallmark of inflammation, was investigated in normal human cells. Using chromosome conformation capture technology, we showed that GO triggers physical interactions between the downstream enhancer and the cox2 promoter in human embryonic kidney 293T (293T) via p65 and p300 complex-mediated dynamic chromatin looping, which was required for high cox2 expression. Moreover, tumor necrosis factor-alpha (TNF alpha), located upstream of the p65 signaling pathway, contributed to the regulation of cox2 activation through dynamic chromatin architecture. Compared with pristine GO and aminated GO (GO-NH2), poly (acrylic acid)-functionalized GO (GO-PAA) induced a weaker inflammatory response and a weaker effect on chromatin architecture. Our results mechanistically link GO-mediated chromatin interactions with the regulation of cox2 and suggest that GO derivatives may minimize toxicity in practical applications. PMID- 29338480 TI - The role of screening mammography in the era of modern breast cancer treatment. AB - The evidence is reviewed on the efficacy and effectiveness of mammography screening derived from randomized screening trials and from the surveillance of populations where mammography screening for breast cancer has been introduced. Nearly all the trials were performed in the era before modern adjuvant therapy for breast cancer was introduced, apart from the Canadian National Breast Screening Study and the UK Age trial. The former found no benefit from annual mammography screening for 5 years in women age 40-59 years, the latter, a non significant benefit from screening women by annual mammography for 7 years from ages 39 to 41 years. The evidence from population-based surveillance is mixed, most such studies having failed to consider the benefit gained from improved therapy. It is concluded that we have reached the point of negligible benefit from mammography screening for breast cancer in women at average risk, and that we should concentrate on early diagnosis of breast cancer and the application of modern therapy according to clearly defined sub-types of breast cancer. PMID- 29338481 TI - Statement of retraction. PMID- 29338483 TI - Reply to: Prehospital Intubation: Further Confounders in Trial Results. PMID- 29338484 TI - The association between micronucleus, nucleoplasmic bridges, and nuclear buds frequency and the degree of uterine cervical lesions. AB - BACKGROUND AND AIM: The loss of genomic stability plays an important role in carcinogenesis. Therefore, it is imperative to use certain biomarkers of DNA damage due to genomic instability in order to predict cancer risk. The aim of this study was the evaluation of genomic instability in patients with cervical lesions. MATERIALS AND METHODS: We investigated the genetic damages in 80 subjects: 40 patients with high-grade squamous intraepithelial lesions (HSIL), 20 patients with invasive squamous cervical cancer (SCC) and 20 healthy women with a biomarker in two different tissues; the micronucleus (MN) test in peripheral blood lymphocytes (PBL), and in buccal exfoliated cells (BEC). This study also examined the frequency of other nuclear anomalies such as nucleoplasmic bridges (NPBs) and nuclear bunds (NBUDs) in PBL. RESULTS: The frequency of MN in BEC, MN in PBL, NPB in PBL and NBUD in PBL were significantly higher (p < 0.001), in patients compared to controls. The DNA damages in BEC and PBL were correlated positively with histological grade of cervical lesions. CONCLUSION: Although larger studies are needed, our data support the predictive value of MN, NPB and NBUD as biomarkers of genomic instability for evaluation of risk level of cancer diseases. PMID- 29338485 TI - The Australian Coding Standards Advisory Committee. PMID- 29338486 TI - Rewarding effects of physical activity predict sensitivity to the acute subjective effects of d-amphetamine in healthy volunteers. AB - While individual differences in reward sensitivity are believed to generalize across drugs and alternative rewards, this notion has received little empirical attention in human research. Here, we tested whether individual differences in the subjective rewarding effects of physical activity were associated with the subjective response to d-amphetamine administration. Healthy volunteers ( n=95; age 18-35 years) completed questionnaires measuring the self-reported pleasurable effects of physical activity and other covariates, and this was followed by two double-blind counterbalanced sessions during which they received either 20 mg oral d-amphetamine or placebo. Subjective drug effects measures were collected before and repeatedly after drug administration. Subjective d-amphetamine-related effects were then reduced via principal components analysis into latent factors of "positive mood," "arousal," and "drug high." Multiple regression models controlling for placebo-related scores, session order, demographics, body mass index, level of physical activity, and use of other drugs showed that degree of self-reported physical activity reward was positively associated with d amphetamine-induced positive mood and arousal ( betas>=0.25, ps<=0.04), but was not associated with d-amphetamine-induced changes in drug high ( beta=0.13, p=0.24). These results provide novel evidence suggesting that individual differences in reward sensitivity cross over between d-amphetamine reward and physical activity reward in humans. PMID- 29338488 TI - Macrophage polarization and activation at the interface of multi-walled carbon nanotube-induced pulmonary inflammation and fibrosis. AB - Pulmonary exposure to carbon nanotubes (CNTs) induces fibrosing lesions in the lungs that manifest rapid-onset inflammatory and fibrotic responses, leading to chronic fibrosis in animals and health concerns in exposed humans. The mechanisms underlying CNT-induced fibrogenic effects remain undefined. Macrophages are known to play important roles in immune regulation and fibrosis development through their distinct subsets. Here we investigated macrophage polarization and activation in mouse lungs exposed to multi-walled CNTs (MWCNTs). Male C57BL/6J mice were treated with MWCNTs (XNRI MWNT-7) at 40 MUg per mouse (~1.86 mg/kg body weight) by oropharyngeal aspiration. The treatment stimulated prominent acute inflammatory and fibrotic responses. Moreover, it induced pronounced enrichment and polarization of macrophages with significantly increased M1 and M2 populations in a time-dependent manner. Induction of M1 polarization was apparent on day 1 with a peak on day 3, but declined rapidly thereafter. On the other hand, the M2 polarization was induced on day 1 modestly, but was remarkably elevated on day 3 and maintained at a high level through day 7. M1 and M2 macrophages were functionally activated by MWCNTs as indicated by the expression of their distinctive functional markers, such as iNOS and ARG1, with time courses parallel to M1 and M2 polarization, respectively. Molecular analysis revealed MWCNTs boosted specific STAT and IRF signaling pathways to regulate M1 and M2 polarization in the lungs. These findings suggest a new mechanistic connection between inflammation and fibrosis induced by MWCNTs through the polarization and activation of macrophages during MWCNT-induced lung pathologic response. PMID- 29338487 TI - Acupuncture treatments for infantile colic: a systematic review and individual patient data meta-analysis of blinding test validated randomised controlled trials. AB - OBJECTIVE: Needle acupuncture in small children has gained some acceptance in Western medicine. It is controversial, as infants and toddlers are unable to consent to treatment. We aimed to assess its efficacy for treating infantile colic. DESIGN: A systematic review and a blinding-test validation based on individual patient data from randomised controlled trials. Primary end-points were crying time at mid-treatment, at the end of treatment and at a 1-month follow-up. A 30-min mean difference (MD) in crying time between acupuncture and control was predefined as a clinically important difference. Pearson's chi squared test and the James and Bang indices were used to test the success of blinding of the outcome assessors [parents]. Eligibility criteria and data sources: We included randomised controlled trials of acupuncture treatments of infantile colic. Systematic searches were conducted in Cochrane CENTRAL, MEDLINE, EMBASE, CINAHL and AMED, and in the Chinese language databases CNKI, VIP, Wang fang, SinoMed and Chinese Clinical Trial Registry. RESULTS: We included three randomised controlled trials with data from 307 participants. Only one of the included trials obtained a successful blinding of the outcome assessors in both the acupuncture and control groups. The MD in crying time between acupuncture intervention and no acupuncture control was -24.9 min [95% confidence interval, CI -46.2 to -3.6; three trials] at mid-treatment, -11.4 min [95% CI -31.8 to 9.0; three trials] at the end of treatment and -11.8 min [95% CI -62.9 to 39.2; one trial] at the 4-week follow-up. The corresponding standardised mean differences [SMDs] were -0.23 [95% CI -0.42 to -0.06], -0.10 [95% CI -0.29 to 0.08] and -0.09 [95% CI -0.48 to 0.30]. The heterogeneity was negligible in all analyses. The statistically significant result at mid-treatment was lost when excluding the apparently unblinded study in a sensitivity analysis: MD -13.8 min [95%CI -37.5 to 9.9] and SMD -0.13 [95%CI -0.35 to 0.09]. The registration of crying during treatment suggested more crying during acupuncture [odds ratio 7.7; 95% CI 2.7 20.6; one trial]. GRADE-Moderate quality evidence. CONCLUSIONS: Percutaneous needle acupuncture treatments should not be recommended for infantile colic on a general basis. Systematic review registration: PROSPERO 2015:CRD42015023253 Key points The role of acupuncture in the treatment of infantile colic is controversial. Available trials are small and present conflicting results. There were no clinically important differences between infants receiving acupuncture and no acupuncture control in this IPD meta-analysis of randomised controlled trials. The data indicate that acupuncture induces some treatment pain in many of the children. The study results indicate that percutaneous needle acupuncture should not be recommended for treatment of infantile colic on a general basis. PMID- 29338490 TI - Treatment approaches for nasopharyngeal adenoid cystic carcinoma. PMID- 29338489 TI - Multimodal physiotherapy treatment based on a biobehavioral approach for patients with chronic cervico-craniofacial pain: a prospective case series. AB - The purpose of this prospective case series was to observe and describe changes in patients with chronic cervico-craniofacial pain of muscular origin treated with multimodal physiotherapy based on a biobehavioral approach. Nine patients diagnosed with chronic myofascial temporomandibular disorder and neck pain were treated with 6 sessions over the course of 2 weeks including: (1) orthopedic manual physiotherapy (joint mobilizations, neurodynamic mobilization, and dynamic soft tissue mobilizations); (2) therapeutic exercises (motor control and muscular endurance exercises); and (3) patient education. The outcome measures of craniofacial (CF-PDI) and neck disability (NDI), kinesiophobia (TSK-11) and catastrophizing (PCS), and range of cervical and mandibular motion (ROM) and posture were collected at baseline, and at 2 and 14 weeks post-baseline. Compared to baseline, statistically significant (p < 0.01) and clinically meaningful improvements that surpassed the minimal detectable change were observed at 14 weeks in CF-PDI (mean change, 8.11 points; 95% confidence interval (CI): 2.55 to 13.69; d = 1.38), in NDI (mean change, 5 cm; 95% CI: 1.74-8.25; d = 0.98), and in the TSK-11 (mean change, 6.55 cm; 95% CI: 2.79-10.32; d = 1.44). Clinically meaningful improvements in self-reported disability, psychological factors, ROM, and craniocervical posture were observed following a multimodal physiotherapy treatment based on a biobehavioral approach. PMID- 29338492 TI - Genetic variation of GRIA3 gene is associated with vulnerability to methamphetamine dependence and its associated psychosis. AB - Methamphetamine (METH) is an addictive psychostimulant drug commonly leading to schizophrenia-like psychotic symptoms. Disturbances in glutamatergic neurotransmission have been proposed as neurobiological mechanisms and the alpha amino-3 hydroxy-5 methyl-4 isoxazole propionic acid (AMPA) glutamate receptor has been implicated in these processes. Moreover, genetic variants in GRIAs, genes encoding AMPA receptor subunits, have been observed in association with both drug dependence and psychosis. We hypothesized that variation of GRIA genes may be associated with METH dependence and METH-induced psychosis. Genotyping of GRIA1 rs1428920, GRIA2 rs3813296, GRIA3 rs3761554, rs502434 and rs989638 was performed in 102 male Thai controls and 100 METH-dependent subjects (53 with METH-dependent psychosis). We observed no evidence of association with METH dependence and METH dependent psychosis in the GRIA1 and GRIA2 polymorphisms, nor with single polymorphisms rs3761554 and rs989638 in GRIA3. An association of GRIA3 rs502434 was identified with both METH dependence and METH-dependent psychosis, although this did not withstand correction for multiple testing. Combining the analysis of this site with the previously-demonstrated association with BDNF rs6265 resulted in a highly significant effect. These preliminary findings indicate that genetic variability in GRIA3 may interact with a functional BDNF polymorphism to provide a strong risk factor for the development of METH dependence in the Thai population. PMID- 29338491 TI - The effect of ketamine on the consolidation and extinction of contextual fear memory. AB - Ketamine, principally an antagonist of N-methyl-?-aspartate receptors, induces schizophrenia-like symptoms in adult humans, warranting its use in the investigation of psychosis-related phenotypes in animal models. Genomic studies further implicate N-methyl-?-aspartate receptor-mediated processes in schizophrenia pathology, together with more broadly-defined synaptic plasticity and associative learning processes. Strong pathophysiological links have been demonstrated between fear learning and psychiatric disorders such as schizophrenia. To further investigate the impact of ketamine on associative fear learning, we studied the effects of pre- and post-training ketamine on the consolidation and extinction of contextual fear memory in rats. Administration of 25 mg/kg ketamine prior to fear conditioning did not affect consolidation when potentially confounding effects of state dependency were controlled for. Pre training ketamine (25 mg/kg) impaired the extinction of the conditioned fear response, which was mirrored with the use of a lower dose (8 mg/kg). Post training ketamine (25 mg/kg) had no effect on the consolidation or extinction of conditioned fear. These observations implicate processes relating to the extinction of contextual fear memory in the manifestation of ketamine-induced phenotypes, and are consistent with existing hypotheses surrounding abnormal associative learning in schizophrenia. PMID- 29338493 TI - Challenges of peroral endoscopic myotomy in the treatment of distal esophageal spasm. AB - OBJECTIVE: Distal esophageal spasm (DES) is a rare motility disorder characterized by premature and rapidly propagated contractions of the distal esophagus. Treatment options are limited and often poorly effective. Peroral endoscopic myotomy (POEM) seems an effective and attractive new treatment option for DES. In this case report we describe some of the difficulties that could arise. MATERIALS AND METHODS: A 84-year old man with therapy-refractory DES and complaints of severe dysphagia and chest pain underwent a POEM procedure under general anesthesia. A longer myotomy was performed to cleave the circular muscle layer from start till end of the spastic contractions. RESULTS: The length of the myotomy was 16 cm. Hyperactive spastic contractions during the procedure complicated the creation of the submucosal tunnel, extended the duration (134 vs. 60-90 min for achalasia), increased postoperative pain and prolonged hospital admission. Intravenously nitroglycerin peroperative diminished spastic contractions. Postoperative a remnant of spastic contractions was present, proximal to the myotomy, causing persistent symptoms. CONCLUSION: Performing POEM for DES is challenging due to reactive hyperactive spastic contractions during the procedure causing technical difficulties and an extended procedure. A long myotomy, several centimeters above the proximal border of the spastic region, is essential to prevent remnants of spasticity. PMID- 29338494 TI - Neural correlates of response inhibition in patients with bipolar disorder during acute versus remitted phase. AB - OBJECTIVES: Elevated behavioural impulsivity has been shown to be a core feature of bipolar disorder. However, no study has so far investigated impulsivity related brain activation in patients with BD during acute versus remitted phase. To address the question whether elevated behavioural impulsivity and its differential neural pathways is a state or trait marker of BD, we employed a combined stop signal-go/no-go task in 30 controls, and 37 depressed and 15 remitted patients who were retested. METHODS: Frontal brain activation was recorded using near-infrared spectroscopy. RESULTS: Behaviourally, we found increased impulsivity as indexed by higher stop signal reaction time for patients in their depressed phase while remitted patients did not differ from controls in any measure. In contrast, brain activation measurements revealed an opposite pattern: compared to controls, depressed patients did not show significant differences, while the remitted group displayed significantly decreased activation in bilateral prefrontal cortex during successful inhibition. Analysis of the remaining conditions (go, no-go, unsuccessful inhibition) did not reveal significant differences. CONCLUSIONS: Therefore, behavioural impulsivity and prefrontal hypoactivation do not seem to be a trait marker of BD. As only successful inhibition differentiated between groups, a specific dysfunction of this inhibitory process and its neural pathway may be postulated in BD. PMID- 29338495 TI - Clinical challenges in de novo pediatric acute myeloid leukemia. AB - INTRODUCTION: Although the prognosis of pediatric acute myeloid leukemia (pAML) has improved, with current survival rates up to 75%, relapse rates remain high. Areas covered: The low number of patients, the heterogeneous genomic landscape of AML, novel diagnostic techniques, divergent available treatment protocols, and dose-limiting toxicity of conventional agents all contribute to the complexity of AML treatment. This review gives an overview of the current clinical challenges with respect to diagnostics, treatment, and supportive care in pAML. Expert commentary: Due to intensified treatment regimens and improved supportive care measures, the outcome for pAML patients has improved substantially over the past years. However, most treatment protocols still rely on conventional chemotherapeutic agents with significant toxicity. Although targeted therapies promise to reduce the need for high doses of conventional agents with a subsequent decrease in toxicity, the effectiveness of these strategies remains unsatisfactory today. International collaborations are needed in order to address the ongoing therapeutic challenges of reducing toxicity while increasing effectivity. Consensus on risk-group classification, a common chemotherapy backbone and evidence-based supportive care guidelines are necessary in this context, at the same time enabling intergroup studies on new agents in subgroups. PMID- 29338496 TI - Repeated lipopolysaccharide exposure modifies immune and sickness behaviour response in an animal model of chronic inflammation. AB - Repeated lipopolysaccharide exposure is often used in longitudinal preclinical models of depression. However, the potential phenotypic differences from acute depression-mimicking effects are rarely described. This study compared chronic lipopolysaccharide administration of doses previously used in depression research to a new mode of escalating dose injections. Adult male BALB/c mice ( n=8/group) were injected intraperitoneally with either a single 0.83 mg/kg dose, a repeated 0.1 mg/kg lipopolysaccharide dose or a dose which escalated weekly from 0.33 to 0.83 mg/kg lipopolysaccharide for six weeks. The escalating lipopolysaccharide group demonstrated most features of sickness behaviour such as weight loss and reduction in food intake every week, whilst this effect was not sustained in other groups. Moreover, only in the escalating lipopolysaccharide group did most peripheral plasma cytokines levels, measured using Luminex multiplex technology, such as interleukin-6, tumour necrosis factor alpha and interleukin-2 remain over three-fold elevated on the sixth week. In addition, exposure to escalating doses led to a reduction of neuroblast maturation in the dentate gyrus relevant for depression neurobiology. Therefore, this mode of injections might be useful in the studies attempting to replicate neurobiological aspects of the chronic inflammatory state observed in mood disorders. PMID- 29338497 TI - A prospective observational study comparing cardiac function of small for gestational age with appropriate for gestational age babies using serial echocardiographic studies. AB - BACKGROUND: Approximately 30% of babies born in India are low birth weight (LBW) and about 70% of LBW babies are small for gestational age (SGA). Though there are several trials that have evaluated cardiac function of intrauterine growth restricted (IUGR) babies in utero, there is limited data about postnatal cardiac function in SGA babies during early neonatal period. This study was conducted to evaluate the cardiac functions of SGA babies by serial echocardiographic measurements and compare this with appropriate for gestational age (AGA) babies during the early postnatal period. MATERIAL AND METHODS: Seventy babies were enrolled in this prospective observational study with 35 each in the SGA and AGA groups. Echocardiography was performed for all babies on days 1, 2, and 3 of life. Myocardial performance index (MPI) was used as the primary measure to compare cardiac function. MPI was calculated for both ventricles using pulse wave Doppler and tissue Doppler. RESULTS: MPI of the left ventricle was significantly higher in the SGA group as compared to AGA babies during all the three measurement periods with SGA babies having significantly higher MPI of right ventricle on day 1 and day 2 but not on day 3. Left ventricular internal diameter index during diastole and systole (LVIDD index and LVIDS index), left atrium: aortic root ratio (LA:AO ratio) were significantly increased in SGA babies on all the occasions. Fractional shortening, ejection fraction, and area shortening were similar in two groups. CONCLUSIONS: Myocardial performance index of left and right ventricle, which evaluates both systolic and diastolic function of ventricles, was significantly increased in SGA babies in comparison to AGA babies during the first 3 days of life except MPI of the right ventricle on day 3. Thus, SGA babies have compromised cardiac function through all phases of the cardiac cycle with the performance improving spontaneously over time. PMID- 29338498 TI - From clinical remission to residual disease activity in spondyloarthritis and its potential treatment implications. AB - INTRODUCTION: Remission or low disease activity should be the target of therapy in spondyloarthritis (SpA). Due to the complexity of the disease, several composite indices that assess all disease domains were proposed to define a status of low disease activity/remission in both axial and peripheral SpA. With the introduction, in the past years, of effective biologic and targeted synthetic treatments aimed at inhibiting key cytokines and intracellular pathways, the goal of clinical remission has become an achievable target in these conditions. However, residual disease activity may occur in some domains and the management of patients that achieve the target of remission is still an unmet need. Areas covered: This manuscript aimed to review the current evidence on clinical remission and residual disease activity in SpA (both axial SpA and psoriatic arthritis), and its potential treatment implications. Expert commentary: Progress in our understanding of the pathogenesis of SpA will lead to a rapid increase in the number of available treatments, with the possibility for patients to achieve a status of remission. However, the topic of residual disease activity should be taken into consideration. PMID- 29338499 TI - A milestone reached? PMID- 29338501 TI - Does the evidence support the implementation of lung cancer screening with low dose computed tomography? PMID- 29338502 TI - The Health Information Manager as Consultant. PMID- 29338503 TI - The Health Information Manager in a WA Division of General Practice: A Multiskilled Occupation. PMID- 29338504 TI - The Health Information Manager as Project Manager. PMID- 29338505 TI - Taking on a New Role: The Health Information Manager in the Queensland Ambulance Service. PMID- 29338506 TI - The Health Information Manager in Correctional Health. PMID- 29338507 TI - From Private to General Practice. PMID- 29338508 TI - The Health Information Manager in a Division of General Practice: A Western Australian Experience. PMID- 29338509 TI - A Health Information Manager's Experience in Palliative Care. PMID- 29338510 TI - The Health Information Manager in Epidemiological Research: From Coder to Program Manager. PMID- 29338511 TI - Health Authority Data Management and Analysis. PMID- 29338512 TI - HIM in Special Health Services. PMID- 29338513 TI - Health Authority Data Collection. PMID- 29338514 TI - Portsea Safe Haven - From DRGs to Refugees. PMID- 29338515 TI - Feel like a Change? Read about Health Information Managers in Non-Traditional Jobs. PMID- 29338516 TI - Electronic Health Record System Risk Assessment: A Case Study from the MINET. AB - This article discusses the risk assessment of a health information system. A case study was conducted at the South Western Sydney Area Health Service to examine the potential risks of the Maternal and Infant Network (MINET) health information system using Failure Mode Effect Analysis (FMEA). FMEA was conducted by utilising safety attributes identified by the authors. Potential failure modes of the system were identified by the study. From this study, it can be concluded that FMEA is an appropriate risk-assessment method for MINET. PMID- 29338517 TI - Register-Recall Systems: Tools for Chronic Disease Management in General Practice. AB - The Divisions Diabetes and Cardiovascular Disease Quality Improvement Project (DDCQIP) is a national project that aims to promote quality improvement initiatives among Divisions of General Practice. DDCQIP has investigated the growth of Division-based diabetes and cardiovascular disease register-recall systems and the role they play in promoting evidence-based structured care within general practice. In the period 2000-2002, an increase in the number of GPs using register-recall systems and the rise in the number of active registered patients have made it possible to monitor quality of care and health outcome indicators, and contributed to the growth of a Division-based population health program. PMID- 29338518 TI - An 'Arresting' Kind of Job for a Health Information Manager: Working in SAPOL. PMID- 29338519 TI - A 'Secure' Kind of Job: The Health Information Manager in the NSW Corrections Health Service. PMID- 29338520 TI - The Role of the Health Information Manager in Forensic Mental Health. PMID- 29338521 TI - Best Practice for the Design of Forms. AB - A major objective following the 1997 amalgamation of three health services in Ballarat, Victoria, was the integration of the three discrete medical records into one system. This article describes the multidisciplinary collaboration, under the leadership of health information managers, that played a critical role in this project. Standards and best-practice evidence were used to inform new guidelines for forms design and development. This was complemented by another project to develop best-practice guidelines for producing consumer information with a focus on readability. Issues related to designing electronic forms were considered, but further work is required so that best-practice principles are available to guide designers. A sub-committee has been established with delegated authority to approve all forms. Initial evaluations have demonstrated marked improvements in the quality of new and revised forms. PMID- 29338522 TI - Health Informatics and Health Information Management in Maternal and Child Health Services. AB - In November 1997, the South Western Sydney Area Health Service launched the Mother and Infant Network (MINET). The key objective of MINET is to develop an integrated clinical data network which has the capacity to inform and support a continuum of care for the population of all mothers, infants and children. The MINET data network integrates in-patient services, ambulatory services, and community-based services. The focus of this article is the development and implementation of MINET with reference to the crucial role of data linkage and health informatics in health outcomes/health services research. PMID- 29338523 TI - Standards for Health Information and Related Health Information Technology. PMID- 29338524 TI - Visceral adiposity index is associated with premature ejaculation inversely: a cross-sectional study. AB - OBJECTIVE: Visceral adiposity index (VAI) is a novel indicator for the assessment of visceral obesity. In this study, we aimed to evaluate the relationship between VAI and premature ejaculation (PE). MATERIALS AND METHOD: A total of 300 men were included in the study. Hundred and fifty men with PE and 150 men without PE (control). All men were evaluated for PE by premature ejaculation diagnostic tool (PEDT). VAI levels were calculated using body mass index (BMI), high density lipoprotein and triglyceride (TG) levels. RESULTS: Mean age of the study groups was 34.3 +/- 5.2 (30-60) years and the mean age of the controls were 35.9 +/- 5.3 (30-60) years. The men with PE had lower BMI, TG levels, waist circumference (WC) and higher high-density lipoprotein-cholesterol (HDL-C) levels. Mean VAI level was 4.13 +/- 0.7 in study group and 5.72 +/- 1.6 in control group, respectively. VAI levels were statistically higher in men without PE (p < .001). DISCUSSION: Our cross-sectional study demonstrated a negative correlation between VAI and PE. VAI is superior index for the evaluation and calculation the relationship between obesity and PE. PMID- 29338527 TI - Privacy - It's Your Issue. PMID- 29338525 TI - Pyocyanin induces systemic oxidative stress, inflammation and behavioral changes in vivo. AB - Pyocyanin (PCN) is a virulence factor secreted by Pseudomonas aeruginosa (P. aeruginosa) that has been shown to have numerous toxic effects in both in vitro and in vivo studies. Such toxicities include pro-inflammatory and pro-oxidant mediated responses. It is hypothesized that PCN can cross biological membranes and reach the systemic circulation, but no previous studies have investigated this. The aim of this study was, therefore, to quantify PCN in plasma and assess if systemic responses were occurring after localized intranasal administration in C57BL/6 J mice. This was achieved through the plasma quantification of PCN and assessment of changes to behavior using two commonly used tests, the forced swimming test and the open field test. Furthermore, evidence of systemic oxidative stress and inflammation was measured using malondialdehyde (MDA) and TNF-alpha post PCN exposure. PCN was found to cross into systemic circulation but in a variable manner. Furthermore, significant increases in plasma TNF-alpha and MDA (both p < 0.001) were observed along with changes in behavior indicative of systemic inflammatory responses. PMID- 29338528 TI - The Privacy Imperative for a Successful Health Connect. PMID- 29338526 TI - Associations of Abdominal Subcutaneous and Visceral Fat with Insulin Resistance and Secretion Differ Between Men and Women: The Netherlands Epidemiology of Obesity Study. AB - BACKGROUND: Abdominal obesity is a well-established risk factor for the development of type 2 diabetes. However, sex differences may exist. We aimed to investigate the associations of abdominal subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) with insulin resistance and insulin secretion in men and women. METHODS: In this cross-sectional analysis of the Netherlands Epidemiology of Obesity study, fasting and postprandial concentrations of glucose and insulin were measured and abdominal fat depots were assessed using magnetic resonance imaging in 2253 participants (53% women). With linear regression analysis, we examined associations of abdominal SAT and VAT with measures of insulin resistance and insulin secretion in men and women, while adjusting for age, ethnicity, education, smoking habits, alcohol consumption, menopausal state and hormone use in women, and models with VAT additionally for total body fat. RESULTS: Participants had a mean [standard deviation (SD)] age of 56 (6) years, body mass index: 25.9 (3.9) kg/m2, VAT: 89 (55) cm2, and SAT: 235 (95) cm2. In the multivariate models in men, per SD of VAT the homeostatic model assessment of insulin resistance (HOMA-IR) was 20% (95% CI: 14-26) higher, and per SD SAT 21% (15-27) higher. In women, per SD of VAT the HOMA-IR was 40% (29-52) higher, and per SD SAT 12% (6-19) higher. Associations with measures of insulin secretion were weaker than with insulin resistance. CONCLUSIONS: In men, abdominal SAT and VAT were associated with insulin resistance to a similar extent, whereas in women particularly VAT was associated with insulin resistance and insulin secretion. Future studies need to unravel the mechanisms underlying the metabolic effects of visceral fat in women. Simple and less expensive measures that can distinct abdominal subcutaneous and visceral fat are needed for an improved metabolic risk stratification. PMID- 29338529 TI - Health Connect: Making Consent and Privacy a Priority. PMID- 29338530 TI - Clinical Coding Audits: An Annotated Bibliography. PMID- 29338531 TI - The Implications of Data Privacy Legislation for the Development of Hospital Information Systems. AB - This research provides an analysis of the implementation of medical data privacy law in Australia, with emphasis on the Victorian Health Records Act 2001 (HRA). We examine the ability of health organisations to respond to the requirements of this legislation, and similar health privacy legislation elsewhere, and illustrate that this ability is affected by the quality of their patient data and the structure and security of their databases. This article suggests that compliance with the legislative provisions creates implications for information systems development and design, which large public and private hospitals have so far failed to consider or act upon. PMID- 29338532 TI - Health Privacy: The Draft Australian National Health Privacy Code and the Shared Longitudinal Electronic Health Record. AB - An explicit distinction between shared electronic health records and those at the point of care is required when referring to electronic health records. The former raises particular privacy issues discussed in this paper in relation to Health Connect and the Draft Australian National Health Privacy Code. In addition to a number of revisions to the code, the analysis recommends that related legislation such as archival and freedom of information law should be reconciled as much as possible within the code, so that a long-term view of the uses, retention and preservation of the longitudinal electronic health record is balanced with privacy, confidentiality and public interest. PMID- 29338533 TI - Enhanced solubility, oral bioavailability and anti-osteoporotic effects of raloxifene HCl in ovariectomized rats by Igepal CO-890 nanomicelles. AB - The purpose of the present study was to enhance the bioavailability and anti osteoporotic effects of raloxifene HCl (RH) by increasing its solubility and inhibition of the p-glycoprotein pump using surfactant micelles of Igepal CO-890. The micelles were prepared by the direct method and their critical micellar concentration, drug dissolution rate, saturated solubility, drug loading and surface morphology were defined. The cytotoxicity of Igepal CO-890 and its ability to inhibit the p-glycoprotein pump were studied on Caco-2 cells. The pharmacokinetic parameters were analyzed by oral administration of a single dose of 15 mg/kg in Wistar rats. Anti-osteoporotic effects were studied by measuring the calcium, phosphorous, and uterus weight of rats after one month of oral administration of 6 mg/kg/day of RH in ovariectomized rats. Igepal CO-890 micelles enhanced the RH solubility by about two-fold. The FT-IR and DSC studies indicated no interaction between the drug and the surfactant. XRD spectrum showed an amorphous state of RH in the micelles. The p-glycoprotein pump was inhibited by Igepal CO-890 in Caco-2 cells comparable to verapamil. Micelles increased the uterine weight and decreased the serum calcium and phosphorus significantly compared to the untreated drug. Oral bioavailability of RH increased about four fold by nanomicelles. PMID- 29338534 TI - Health Information Management Journal Reviewers 2017. PMID- 29338535 TI - Different lymph node staging systems for patients with adenocarcinoma of esophagogastric junction. AB - OBJECTIVE: In addition to the traditional TNM N staging system, lymph node ratio (LNR) and log odds of metastatic lymph nodes (LODDS) staging methods were developed in cancers. This study aimed to examine their relative prognostic performance in patients with adenocarcinoma of the esophagogastric junction (AEG). PATIENTS AND METHODS: Patients who underwent surgical resection for AEG were identified from the Surveillance, Epidemiology, and End Results (SEER) Program and the First Affiliated Hospital of Xi'an Jiaotong University as the training and validation sets, respectively. The Akaike's Information Criterion (AIC), Harrell's C statistic, and ROC curves were utilized for comparison. RESULTS: A total of 735 patients were involved in the training set. LODDS and LNR staging systems had better prognostic performance than the TNM N staging systems (when considered as a categorical variable: C index = 0.728 and 0.712 vs 0.671; AIC: 6247.537 and 6265.996 vs 6320.045; AUC: 0.762 and 0.719 vs 0.692. For the continuous model: C index = 0.675 and 0.686 vs 0.658; AIC = 6243.740 and 6261.027 vs 6355.077; AUC = 0.778 and 0.733 vs 0.693). In the validation set of 183 patients, the TNM N staging scheme outperformed the LODDS and LNR staging systems (C index = 0.788 vs 0.779 and 0.767; AIC = 1014.702 vs 1026.899 and 1025.288; AUC = 0.806 vs 0.787 and 0.791) when considered a categorical variable. However, when considered a continuous variable, the LODDS and LNR staging systems were better than the TNM N staging system (C index = 0.724 and 0.733 vs 0.747; AIC = 1018.075 and 1025.803 vs 1026.085; AUC = 0.811 and 0.810 vs 0.806). CONCLUSIONS: The LNR and LODDS staging schemes could be considered new options for prognostic prediction of AEG with respect to lymph node status, especially when considered as continuous variables. PMID- 29338536 TI - P2Y12 receptor inhibitors: an evolution in drug design to prevent arterial thrombosis. AB - INTRODUCTION: P2Y12 inhibitors are a critical component of dual antiplatelet therapy (DAPT), which is the superior strategy to prevent arterialthrombosis in patients with acute coronary syndromes (ACS) and undergoing stent implantation.. Areas covered: Basic science articles, clinical studies, and reviews from 1992 2017 were searched using Pubmed library to collet impactful literature. After an introduction to the purinergic receptor biology, this review summarizes current knowledge on P2Y12 receptor inhibitors. Furthermore, we describe the subsequent improvements of next-generation P2Y12 receptor inhibitors facing the ambivalent problem of bleeding events versus prevention of arterial thrombosis in a variety of clinical settings. Therefore, we summarize data from relevant preclinical and clinical trials of currently approved P2Y12 receptor inhibitors (clopidogrel, prasugrel, ticagrelor, cangrelor) and provide strategies of drug switching and management of bleeding events. Expert opinion: An enormous amount of pharmacologic and clinical data is available for the application of P2Y12 receptor inhibitors. Today prasugrel, ticagrelor and clopidogrel are the standard of care drugs during dual antiplatelet therapy for ACS patients, but have considerable rates of bleeding. Recent and future clinical trials will provide evidence for subsequent escalation and de-escalation strategies of P2Y12 receptor inhibition. These data may pave the way for an evidence-based, individualized P2Y12 receptor inhibitor therapy. PMID- 29338537 TI - Antidepressant prescriptions and mental health nurses: an observational study in Dutch general practice from 2011 to 2015. AB - PURPOSE: The purpose of this study was to investigate developments in antidepressant prescriptions by Dutch general practitioners, alongside the national introduction of mental health nurses. Antidepressant prescriptions are very common in general practice, but are often not in line with recommendations. The recent introduction of mental health nurses may have decreased antidepressant prescriptions, as general practitioners (GPs) have greater potential to offer psychological treatment as a first choice option instead of medication. MATERIAL AND METHODS: Anonymised data from the medical records of general practices participating in the NIVEL Primary Care Database in 2011-2015 were analysed in an observational study. We used multilevel logistic regression analyses to determine whether total antidepressant prescriptions and antidepressants prescribed within one week of diagnosing anxiety or depression decreased in the period 2011-2015. We analysed whether changes in antidepressant prescriptions were associated with the employment or consultation of mental health nurses. RESULTS: Antidepressants were prescribed in 30.3% of all anxiety or depression episodes; about half were prescribed within the first week. Antidepressants prescriptions for anxiety or depression increased slightly in the period 2011-2015. The employment of mental health nurses was not associated with a decreased number of prescriptions of antidepressants. Patients who had at least one mental health nurse consultation had fewer immediate prescriptions of antidepressants, but not fewer antidepressants in general. CONCLUSIONS: Antidepressant prescriptions are still common in general practice. So far, the introduction of mental health nurses has not decreased antidepressant prescriptions, but it may have a postponing effect. PMID- 29338538 TI - Increased nature relatedness and decreased authoritarian political views after psilocybin for treatment-resistant depression. AB - RATIONALE: Previous research suggests that classical psychedelic compounds can induce lasting changes in personality traits, attitudes and beliefs in both healthy subjects and patient populations. AIM: Here we sought to investigate the effects of psilocybin on nature relatedness and libertarian-authoritarian political perspective in patients with treatment-resistant depression (TRD). METHODS: This open-label pilot study with a mixed-model design studied the effects of psilocybin on measures of nature relatedness and libertarian authoritarian political perspective in patients with moderate to severe TRD ( n=7) versus age-matched non-treated healthy control subjects ( n=7). Psilocybin was administered in two oral dosing sessions (10 mg and 25 mg) 1 week apart. Main outcome measures were collected 1 week and 7-12 months after the second dosing session. Nature relatedness and libertarian-authoritarian political perspective were assessed using the Nature Relatedness Scale (NR-6) and Political Perspective Questionnaire (PPQ-5), respectively. RESULTS: Nature relatedness significantly increased ( t(6)=-4.242, p=0.003) and authoritarianism significantly decreased ( t(6)=2.120, p=0.039) for the patients 1 week after the dosing sessions. At 7-12 months post-dosing, nature relatedness remained significantly increased ( t(5)= 2.707, p=0.021) and authoritarianism remained decreased at trend level ( t(5)= 1.811, p=0.065). No differences were found on either measure for the non-treated healthy control subjects. CONCLUSIONS: This pilot study suggests that psilocybin with psychological support might produce lasting changes in attitudes and beliefs. Although it would be premature to infer causality from this small study, the possibility of drug-induced changes in belief systems seems sufficiently intriguing and timely to deserve further investigation. PMID- 29338539 TI - Primary Care Provider Experience with Breast Density Legislation in Massachusetts. AB - BACKGROUND: Dense breasts on mammography independently increases breast cancer risk and decreases mammography sensitivity. Thirty-two states have adopted notification laws to raise awareness among women with dense breasts about supplemental screening. Little is known about these policies' impact on clinical practice among primary care providers (PCPs). MATERIALS AND METHODS: This study explores PCP attitudes, knowledge, and the impact of the Massachusetts dense breast notification legislation on clinical practice after its enactment in 2015. An anonymous, online survey at two urban safety-net hospitals was administered in 2015-2016. Practicing MDs and nurse practitioners in primary care were invited to participate. RESULTS: All 145 PCPs in general internal medicine at the two sites were e-mailed a survey link and 80 (55%) were completed. While 64 of 80 PCPs surveyed (80%) had some familiarity with the legislation, none identified the 8 required components of notifications contained in the Massachusetts legislation. Forty-nine percent (39/80) did not feel prepared to respond to patient questions about dense breasts. Forty-one percent (33/80) correctly identified that no current guidelines recommend the use of supplemental screening tests solely based on breast density and 85% (68/80) indicated interest in further training. Female and less experienced providers were more likely to be in favor of the legislation (49% vs. 11% by gender; 76% <5 years vs. 9%> 20 years). Women practitioners (55%) who were more likely than men (17%, p = 0.01) to agree with the policy changed their discussions of mammography results with patients. CONCLUSIONS: PCPs feel underprepared to counsel women about breast density identified on mammography and its implications. PMID- 29338540 TI - Efficacy and safety of frontline rituximab, cyclophosphamide, doxorubicin and prednisone plus bortezomib (VR-CAP) or vincristine (R-CHOP) in a subset of newly diagnosed mantle cell lymphoma patients medically eligible for transplantation in the randomized, phase 3 LYM-3002 study. AB - This post-hoc subanalysis of the LYM-3002 phase 3 study assessed the efficacy and safety of substituting vincristine in rituximab, cyclophosphamide, doxorubicin and prednisone (R-CHOP; n = 42) for bortezomib (VR-CAP; n = 38) in a subgroup of 80 mantle cell lymphoma (MCL) patients aged <60 years who did not receive stem cell transplantation (SCT) despite medical eligibility. Complete response (CR)/unconfirmed CR (CRu) rates were 67 vs. 39% (odds ratio 3.69 [95% CI(confidence interval): 1.31, 10.41]; p = .012). After 40 months median follow up, median progression-free survival by independent radiology committee with VR CAP vs. R-CHOP was 32.6 vs. 12.0 months (hazard ratio (HR) 0.59 [95% CI: 0.31, 1.13]; p = .108); median overall survival was not reached vs. 47.3 months (HR 0.81 [95% CI: 0.33, 1.96]; p = .634). Adverse events included neutropenia (92/76%), thrombocytopenia (70/10%) and leukopenia (65/50%). VR-CAP represents a potential alternative to R-CHOP in combined and/or alternating regimens for younger, SCT-eligible MCL patients. PMID- 29338541 TI - Diagnostic Accuracy of Clinical Measures Considering Segmental Tissue Composition and Volume Changes of Breast Cancer-Related Lymphedema. AB - BACKGROUND: If we use only volumetry for measuring lymphedema, we could underdiagnose lymphedema with characteristics of biomechanical changes without definite volume change, especially in the medial forearm. METHODS AND RESULTS: In total, 158 breast cancer patients participated in this study. Arm volume was measured by water displacement volumetry, and segmental volumes were calculated from circumferences by using the truncated cone method. Subcutaneous ultrasound echogenicities were assessed on the medial side of the upper arm and forearm of both arms and graded by subcutaneous echogenicity grade (SEG) and revised SEG (rSEG). The standards for diagnosing secondary lymphedema were according to the volume change and clinical stage. Sensitivity, specificity, receiver-operating characteristic (ROC) curve, and area under the curve (AUC) were used. Analysis of ROC curves yielded AUCs of 0.875-0.933 (p < 0.001). Volume differences in each segment were significantly different among the grades by SEG. The highest AUC was found for volume difference (AUC = 0.919, 95% confidence interval [CI] = 0.860 0.978) in the upper arm near the elbow; however, in the medial forearm, the highest AUC was found for rSEG (AUC = 0.948, 95% CI = 0.923-0.965 in the proximal forearm; AUC = 0.940, 95% CI = 0.923-0.965 in the distal forearm). CONCLUSIONS: Our findings support the use of SEG by ultrasound in the assessment of lymphedema, especially in the medial region of the forearm. Subcutaneous ultrasound echogenicities may improve the accuracy of diagnosis of lymphedema in the forearm. PMID- 29338542 TI - The novel microtubule-associated CAP-glycine protein Cgp1 governs growth, differentiation, and virulence of Cryptococcus neoformans. AB - Microtubules are involved in mechanical support, cytoplasmic organization, and several cellular processes by interacting with diverse microtubule-associated proteins such as plus-end tracking proteins, motor proteins, and tubulin-folding cofactors. A number of the cytoskeleton-associated proteins (CAPs) contain the CAP-glycine-rich (CAP-Gly) domain, which is evolutionarily conserved and generally considered to bind to alpha-tubulin to regulate the function of microtubules. However, there has been a dearth of research on CAP-Gly proteins in fungal pathogens, including Cryptococcus neoformans, which is a global cause of fatal meningoencephalitis in immunocompromised patients. In this study, we identified five CAP-Gly protein-encoding genes in C. neoformans. Among these, Cgp1 encoded by CNAG_06352 has a unique domain structure containing CAP-Gly, SPEC, and Spc7 domains that is not orthologous to CAPs in other eukaryotes. Supporting the role of Cgp1 in microtubule-related function, we demonstrate that deletion or overexpression of CGP1 alters cellular susceptibility to thiabendazole, a microtubule destabilizer and that Cgp1 is co-localized with cytoplasmic microtubules. Related to the cellular function of microtubules, Cgp1 governs the maintenance of membrane stability and genotoxic stress responses. Deletion of CGP1 also reduces production of melanin pigment and attenuates the virulence of C. neoformans. Furthermore, we demonstrate that Cgp1 uniquely regulates the sexual differentiation of C. neoformans with distinct roles in the early and late stage of mating. Domain analysis revealed that the CAP-Gly domain plays a major role in all Cgp1 functions examined. In conclusion, this novel CAP Gly protein, Cgp1, has pleotropic roles in regulating growth, stress responses, differentiation, and virulence in C. neoformans. PMID- 29338544 TI - A Direct Comparison between Norepinephrine and Phenylephrine for Augmenting Spinal Cord Perfusion in a Porcine Model of Spinal Cord Injury. AB - Current clinical guidelines recommend elevating the mean arterial blood pressure (MAP) to increase spinal cord perfusion in patients with acute spinal cord injury (SCI). This is typically achieved with vasopressors such as norepinephrine (NE) and phenylephrine (PE). These drugs differ in their pharmacological properties and potentially have different effects on spinal cord blood flow (SCBF), oxygenation (PO2), and downstream metabolism after injury. Using a porcine model of thoracic SCI, we evaluated how these vasopressors influenced intraparenchymal SCBF, PO2, hydrostatic pressure, and metabolism within the spinal cord adjacent to the injury site. Yorkshire pigs underwent a contusion/compression SCI at T10 and were randomized to receive either NE or PE for MAP elevation of 20 mm Hg, or no MAP augmentation. Prior to injury, a combined SCBF/PO2 sensor, a pressure sensor, and a microdialysis probe were inserted into the spinal cord adjacent to T10 at two locations: a "proximal" site and a "distal" site, 2 mm and 22 mm from the SCI, respectively. At the proximal site, NE and PE resulted in little improvement in SCBF during cord compression. Following decompression, NE resulted in increased SCBF and PO2, whereas decreased levels were observed for PE. However, both NE and PE were associated with a gradual decrease in the lactate to pyruvate (L/P) ratio after decompression. PE was associated with greater hemorrhage through the injury site than that in control animals. Combined, our results suggest that NE promotes better restoration of blood flow and oxygenation than PE in the traumatically injured spinal cord, thus providing a physiological rationale for selecting NE over PE in the hemodynamic management of acute SCI. PMID- 29338543 TI - Lucidone suppresses dengue viral replication through the induction of heme oxygenase-1. AB - Dengue virus (DENV) infection causes life-threatening diseases such as dengue hemorrhagic fever and dengue shock syndrome. Currently, there is no effective therapeutic agent or vaccine against DENV infection; hence, there is an urgent need to discover anti-DENV agents. The potential therapeutic efficacy of lucidone was first evaluated in vivo using a DENV-infected Institute of Cancer Research (ICR) suckling mouse model by monitoring body weight, clinical score, survival rate, and viral titer. We found that lucidone effectively protected mice from DENV infection by sustaining survival rate and reducing viral titers in DENV infected ICR suckling mice. Then, the anti-DENV activity of lucidone was confirmed by western blotting and quantitative-reverse-transcription-polymerase chain reaction analysis, with an EC50 value of 25 +/- 3 MUM. Lucidone significantly induced heme oxygenase-1 (HO-1) production against DENV replication by inhibiting DENV NS2B/3 protease activity to induce the DENV-suppressed antiviral interferon response. The inhibitory effect of lucidone on DENV replication was attenuated by silencing of HO-1 gene expression or blocking HO-1 activity. In addition, lucidone-stimulated nuclear factor erythroid 2-related factor 2 (Nrf2), which is involved in transactivation of HO-1 expression for its anti-DENV activity. Taken together, the mechanistic investigations revealed that lucidone exhibits significant anti-DENV activity in in vivo and in vitro by inducing Nrf2-mediated HO-1 expression, leading to blockage of viral protease activity to induce the anti-viral interferon (IFN) response. These results suggest that lucidone is a promising candidate for drug development. PMID- 29338545 TI - Identification of G2/M phase transition by sequential nuclear and cytoplasmic changes and molecular markers in mice intestinal epithelial cells. AB - Although the regulatory network of G2/M phase transition has been intensively studied in mammalian cell lines, the identification of morphological and molecular markers to identify G2/M phase transition in vivo remains elusive. In this study, we found no obvious morphological changes between the S phase and G2 phase in mice intestinal epithelial cells. The G2 phase could be identified by Brdu incorporation resistance, marginal and scattered foci of histone H3 phosphorylated at Ser10 (pHH3), and relatively intact Golgi ribbon. Prophase starts with nuclear transformation in situ, which was identified by a series of prophase markers including nuclear translocation of cyclinB1, fragmentation of the Golgi complex, and a significant increase in pHH3. The nucleus started to move upwards in the late prophase and finally rounded up at the apical surface. Then, metaphase was initiated as the level of pHH3 peaked. During anaphase and telophase, pHH3 sharply decreased, while Ki67 was obviously bound to chromosomes, and PCNA was distributed throughout the whole cell. Based on the aforementioned markers and Brdu pulse labeling, it was estimated to take about one hour for most crypt cells to go through the G2 phase and about two hours to go through the G2-M phase. It took much longer for crypt base columnar (CBC) stem cells to undergo G2 prophase than rapid transit amplifying cells. In summary, a series of sequentially presenting markers could be used to indicate the progress of G2/M events in intestinal epithelial cells and other epithelial systems in vivo. PMID- 29338546 TI - Estimation of the volume under the receiver-operating characteristic surface adjusting for non-ignorable verification bias. AB - The receiver-operating characteristic surface is frequently used for presenting the accuracy of a diagnostic test for three-category classification problems. One common problem that can complicate the estimation of the volume under receiver operating characteristic surface is that not all subjects receive the verification of the true disease status. Estimation based only on data from subjects with verified disease status may be biased, which is referred to as verification bias. In this article, we propose new verification bias correction methods to estimate the volume under receiver-operating characteristic surface for a continuous diagnostic test. We assume the verification process is missing not at random, which means the missingness might be related to unobserved clinical characteristics. Three classes of estimators are proposed, namely, inverse probability weighted, imputation-based, and doubly robust estimators. A jackknife estimator of variance is derived for all the proposed volume under receiver-operating characteristic surface estimators. The finite sample properties of the new estimators are examined via simulation studies. We illustrate our methods with data collected from Alzheimer's disease research. PMID- 29338548 TI - Glycine transporter-1 inhibitors: a patent review (2011-2016). AB - INTRODUCTION: Numerous research groups have developed GlyT-1 inhibitors in the pursuit of providing a novel antipsychotic treatment for schizophrenia. Despite multiple compounds advancing into clinical trials, a GlyT-1 inhibitor has yet to emerge to treat patients. However, the approach remains heavily investigated as it presents potential therapeutic utility for several other CNS and non-CNS related indications. Areas covered: This review discusses various GlyT-1 inhibitor chemotypes identified and provides an overview of patent applications filed and published during the period of 2011-2016. The review largely focuses on composition of matter patent applications, although two recently disclosed method of use patents are discussed. Clinical reports are also disseminated. Expert opinion: Mounting clinical failures with schizophrenic patients have blunted enthusiasm for GlyT-1 inhibition as an approach to treat the disease. However, research in the area remains quite active, as therapeutic potential for several additional indications has emerged. There are numerous and diverse GlyT-1 chemotypes now available that exhibit differentiating modes of binding and ligand target binding kinetics, and this rich diversity of chemical matter may help further elucidate the target's pharmacological role in various indications and lead to the identification of a compound with optimal properties that may someday become a drug. PMID- 29338549 TI - Sedation in cardiac arrhythmias management. AB - INTRODUCTION: Procedural sedation is of paramount importance for a plethora of electrophysiological procedures. From electrical cardioversion to electrophysiology studies, device implantations, and catheter ablations, intraprocedural sedation and anesthesia have a pivotal role in allowing procedural success while ensuring patient safety and avoiding discomfort. Areas covered: The present review will discuss the current state-of-the-art in sedation and anesthesia during electrical cardioversion, cardiac implantable electronic device implantation, catheter ablation and electrophysiology studies. Specific information will be provided for each procedure in order to reach the core of this important clinical issue, and specific protocols will be compared. The main pro-arrhythmic and anti-arrhythmic effects of the most commonly used sedatives will also be discussed. Expert commentary: According to much recent evidence, the cardiologist can be the only person responsible for sedation administration in many settings, highlighting few safety issues associated with the absence of a dedicated anesthesiologist thus a concomitant reduction in costs. However, many concerns have been raised in allowing non-anesthesiologists to manage sedatives, as adverse events, while rare, could have catastrophic consequences. The present paper will highlight when a cardiologist-directed sedation is considered safe, how it should be performed, and the pros and cons related to this strategy. PMID- 29338547 TI - Neuroimaging meta-analysis of cannabis use studies reveals convergent functional alterations in brain regions supporting cognitive control and reward processing. AB - Lagging behind rapid changes to state laws, societal views, and medical practice is the scientific investigation of cannabis's impact on the human brain. While several brain imaging studies have contributed important insight into neurobiological alterations linked with cannabis use, our understanding remains limited. Here, we sought to delineate those brain regions that consistently demonstrate functional alterations among cannabis users versus non-users across neuroimaging studies using the activation likelihood estimation meta-analysis framework. In ancillary analyses, we characterized task-related brain networks that co-activate with cannabis-affected regions using data archived in a large neuroimaging repository, and then determined which psychological processes may be disrupted via functional decoding techniques. When considering convergent alterations among users, decreased activation was observed in the anterior cingulate cortex, which co-activated with frontal, parietal, and limbic areas and was linked with cognitive control processes. Similarly, decreased activation was observed in the dorsolateral prefrontal cortex, which co-activated with frontal and occipital areas and linked with attention-related processes. Conversely, increased activation among users was observed in the striatum, which co-activated with frontal, parietal, and other limbic areas and linked with reward processing. These meta-analytic outcomes indicate that cannabis use is linked with differential, region-specific effects across the brain. PMID- 29338550 TI - The role of tumor angiogenesis as a therapeutic target in colorectal cancer. AB - INTRODUCTION: Angiogenesis is a complex process regulated by several pro- and anti-angiogenic factors, thus the loss of its fine equilibrium plays a key role in colorectal cancer (CRC) development and progression. Therapeutic agents targeting VEGF/VEGFR signaling, the main regulator of this process, proved to be effective across different treatment lines in metastatic CRC (mCRC) and contributed greatly to improve patients' survival in recent years. Areas covered: This review aimed to summarize the actual body of knowledge available on the VEGF pathway in CRC, including currently available anti-angiogenic drugs and treatment challenges, mechanisms of resistance, promising predictive biomarkers and future perspectives. Expert commentary: Angiogenesis inhibition in subsequent lines of treatment is a valid strategy in the continuum of care of mCRC patients. In this scenario, the availability of multiple agents warrants to tailor therapy to an individualized approach. However, the validation of predictive biomarkers to aid therapeutic decisions remains an issue. Intrinsic and adaptive resistance to anti angiogenic agents comprises distinct and intertwined processes, eventually leading to treatment failure and disease progression. The expanding knowledge on the mechanisms underlying the angiogenesis pathway, different potential treatment targets and mechanisms of tumor resistance, may lead to promising new perspectives in this field. PMID- 29338551 TI - The regulatory roles of B cell subsets in transplantation. AB - INTRODUCTION: B cells mediate allograft rejection through antigen presentation, and production of cytokines and antibodies. More and more immunosuppressive agents specifically targeting B cells and plasma cells have been applied in clinical transplantation. However, recent studies have indicated the regulatory roles of B cells. Therefore, it is vital to clarify the different effects of B cell subsets in organ transplantation so that we can completely understand the diverse functions of B cells in transplantation. Areas covered: This review focuses on the regulatory roles of B cells in transplantation. B cell subsets with immune modulation and factors mediating immunosuppressive functions of regulatory B (Breg) cells were analyzed. Therapies targeting B cells and the application of B cells for transplant tolerance induction were discussed. Expert commentary: Besides involving rejection, B cells could also play regulatory roles in transplantation. Breg cells and the related markers may be used to predict the immune tolerant state in transplant recipients. New therapeutic strategies targeting B cells should be explored to promote tolerance induction with less impact on the host's protective immunity in organ transplanted patients. PMID- 29338552 TI - The Adverse Drug Reactions Reporting Project. PMID- 29338553 TI - Comprehensive Clinicopathologic and Updated Immunohistochemical Characterization of Primary Ovarian Mucinous Carcinoma. AB - The distinction of primary mucinous ovarian carcinoma (PMOC) from other primaries or secondaries is essential for selecting therapeutic options and prognostication. We aimed to characterize the immunohistochemical profile of 36 PMOCs using an extended immunohistochemical panel, with clinicopathologic features and outcome. PAX8 was negative in 30 (83.3%), and SATB2 was negative in 32/35. HNF1B, AMACR, and napsin-A were detected in 33 (91.7%), 35 (97.2%), and 0 (0%), respectively. MMR proteins and ARID1A were retained in 100%; PTEN was lost in 4 (11.1%). P53 was aberrant in 10 (27.8%); none overexpressed p16. HER2 was positive in 6/35 (17.1%). Most PMOCs had a favorable outcome. However, recurrence is usually fatal. The typical tumor profile was CK7+, CK20+/-, CDX2+/-, PAX8-, ER , PgR-, and SATB2-. HER2 positivity suggests a possible target for therapy in advanced disease. PMID- 29338554 TI - Site Specific Evaluation of Lymphatic Vessel Sclerosis in Lower Limb Lymphedema Patients. AB - BACKGROUND: Histological changes in the collecting lymphatics in patients with lymphedema are classified as Normal type, Ectasis type, Contraction type, and Sclerosis type (NECST) classification. In this study, we investigated the condition of the lymphatic vessels in different sites of the legs. PATIENTS AND METHODS: We prospectively investigated the lymphatic vessels of patients with lymphedema who underwent lymphaticovenous anastomosis (LVA) from August 8, 2014 to August 4, 2015 based on the NECST classification. Lymphedema was diagnosed using lymphoscintigraphy, indocyanine green (ICG) lymphography, and the International Society of Lymphology (ISL) Classification. The affected limbs were divided into four sites: proximal thigh (Site 1), distal thigh (Site 2), proximal crus (Site 3), and distal crus (Site 4). RESULTS: A total of 109 patients (205 limbs and 1028 lymphatics) were included in this study. Of the 109 patients, there were 100 women and 9 men with an average age of 61 years. The ratio of Ectasis type vessels increased toward the distal end of the limb with the highest occurrence rate being 54% at Site 4. As ISL stage, ICG stage, and lymphoscintigraphy stage advanced, so too did the ratio of Sclerosis type. In secondary lymphedema patients with lymphedema, the ratio of Ectasis type was more predominant in the distal end of the limb, whereas this tendency was not observed in primary lymphedema patients. CONCLUSIONS: Sclerotic lymphatics are more predominantly found in the proximal limb whereas nonsclerotic vessels are more often found toward the distal end. These findings help lymphatic surgeon determine incision sites. PMID- 29338555 TI - Positive Neighborhood Norms Buffer Ethnic Diversity Effects on Neighborhood Dissatisfaction, Perceived Neighborhood Disadvantage, and Moving Intentions. AB - Positive neighborhood norms, such as strong local networks, are critical to people's satisfaction with, perceived disadvantage of, and intentions to stay in their neighborhood. At the same time, local ethnic diversity is said to be detrimental for these community outcomes. Integrating both frameworks, we tested whether the negative consequences of diversity occur even when perceived social norms are positive. Study 1 ( N = 1,760 German adults) showed that perceptions of positive neighborhood norms buffered against the effects of perceived diversity on moving intentions via neighborhood satisfaction and perceived neighborhood disadvantage. Study 2 ( N = 993 Dutch adults) replicated and extended this moderated mediation model using other characteristics of diversity (i.e., objective and estimated minority proportions). Multilevel analyses again revealed consistent buffering effects of positive neighborhood norms. Our findings are discussed in light of the ongoing public and political debate concerning diversity and social and communal life. PMID- 29338556 TI - Hong Kong Liberals Are WEIRD: Analytic Thought Increases Support for Liberal Policies. AB - This study tests whether liberals and conservatives within the same society think as if they were from different cultures. I tested this by measuring the cultural thought style of social liberals and conservatives in Hong Kong (Study 1). Liberals tended to think more analytically (more "WEIRD"), and conservatives tended to think more holistically (more common in East Asia). In Study 2, I trained people to think analytically or holistically before they read articles on political issues. Analytic thought caused people to form more liberal opinions, and holistic thought caused people to form more conservative opinions. The thought training affected participants' responses to a social issue, but not an economic issue or whether they identified as liberal or conservative. This study replicates a previous U.S. finding in an East Asian culture and a different political environment, suggesting that the link between politics and thought style extends beyond the United States. PMID- 29338557 TI - Biosynthesis, characterization and leishmanicidal activity of a biocomposite containing AgNPs-PVP-glucantime. AB - AIM: Development of functionalized nanocomposites containing AgNPs-PVP Glucantime(r) to evaluate their leishmanicidal activity as a novel method for improving the pharmacological properties of the drug Glucantime(r) against extracellular promastigotes and intracellular amastigotes of Leishmania amazonensis in vitro to treat cutaneous leishmaniasis. MATERIALS & METHODS: The silver nanoparticles and nanocomposites prepared containing silver nanoparticles, polyvinylpyrrolidone and different amounts of Glucantime were characterized using transmission electron microscopy, x-ray diffraction, energy-dispersive x-ray spectroscopy and zeta potential analysis; in addition, the in vitro cytotoxicity was evaluated. RESULTS: The nanocomposites showed an inhibitory effect on the cellular viability of promastigote forms, with values of 47.06, 51.71 and 65.67% for nanocomposite1, nanocomposite2 and nanocomposite3, respectively, as well as a dose-dependent decrease in the infectivity index, with values of 33.33 and 23% for nanocomposite2 and nanocomposite3, respectively. CONCLUSION: The proposed nanocomposite reveals leishmanial activity and the absence of cytotoxicity in macrophages. Further investigations will be conducted in vivo. PMID- 29338558 TI - The Influence of Masculine Norms and Occupational Factors on Mental Health: Evidence From the Baseline of the Australian Longitudinal Study on Male Health. AB - Men employed in male-dominated occupations are at elevated risk of work-related fatalities, injuries, and suicide. Prior research has focused on associations between psychosocial and physical exposures at work and health outcomes. However, masculine norms may also contribute to mental health. We used data from the baseline survey of the Australian Longitudinal Study on Male Health to examine whether: (a) men in male-dominated jobs report greater adherence to masculine norms; (b) being in a male-dominated occupation is associated with poorer mental health; and (c) being in a male-dominated occupation modifies the association between masculine norms and mental health. Masculine norms were measured using the Conformity to Masculine Norms Inventory (CMNI-22). Mental health was assessed using the SF-12. Results of regression analysis (adjusted for covariates) suggest a linear relationship between the extent to which an occupation is male-dominated and endorsement of values on the CMNI-22. Many CMNI-22 subscales were related to poorer mental health. However, the need for self-reliance was identified as the strongest predictor of poorer mental health. The mental health scale did not appear to be patterned by occupational gender composition and we did not find an interaction between the gender ratio of an occupation and the CNMI-22 scale. These findings highlight the need to address harmful aspects of masculinity as a potential cause of mental health problems. More longitudinal research is needed on the social domains in which gender and health are experienced, such as in the workplace. PMID- 29338559 TI - How can 3D printing be a powerful tool in nanomedicine? PMID- 29338560 TI - Scientists, Instruments, and Even Brains in Transfer: German-Spanish Postwar Networks and the Construction of the Neuroendocrine System (1952-1960). AB - This article presents the process of relocation of hegemonies and "center periphery" dynamics in neuroanatomy after World War II through the study of the links between the Spanish anatomical school of Jose Escolar Garcia and some German institutions. We have analyzed their works on the morphology of the neuroendocrine system as a case study, showing how the first contacts of the Spaniards with the United States started a material transfer process between centers on both sides of the Atlantic Ocean through the mediation-and adaptation of the periphery. The case also shows how scientific networks in the "new" Europe were reestablished after the Nazi era and how important these systems were for the transfer of knowledge, using them for the circulation of experts, instruments, and even biological samples. PMID- 29338561 TI - Menopause and cardiovascular disease. AB - Cardiovascular disease is very common in women. It is still under diagnosed and under treated. Many women are not having their risk factors for cardiovascular disease properly addressed. Many healthcare professionals are uncertain about the role of hormones in cardiovascular disease. This article gives an overview of the most important risk factors for cardiovascular disease and how to manage those risk factors appropriately, based on the available evidence. PMID- 29338562 TI - Targeted microbubbles with ultrasound irradiation and PD-1 inhibitor to increase antitumor activity in B-cell lymphoma. AB - AIM: Severe cardiac toxicity of doxorubicin and an immunosuppressive tumor micro environment become main obstacles for the effective treatment of B-cell lymphoma. In this research, rituximab-conjugated and doxorubicin-loaded microbubbles (RDMs) were designed for exploring a combination approach of targeted microbubbles with ultrasound (US) irradiation and PD-1 inhibitor to overcome obstacles mentioned above. METHODS: In vivo studies were performed on SU-DHL-4 cell-grafted mice and ex vivo studies were performed on CD20+ human SU-DHL-4 cells and human T cells. RESULTS: A greater therapeutic effect and higher expression of PD-L1 protein expression were obtained with RDMs with US irradiation in vivo. A significant inhibitory effect on SU-DHL-4 B-cell lymphoma cells was observed after treated by RDMs with US irradiation and PD-1 inhibitor ex vivo. CONCLUSION: Combination of RDMs with US irradiation and PD-1 inhibitor could be a promising therapeutic strategy for B-cell lymphoma. PMID- 29338564 TI - 1986, The Michael Faraday prize and the promotion of science in the nineteenth century. PMID- 29338563 TI - The Long-Term Effects of the Youth Crime Prevention Program "New Perspectives" on Delinquency and Recidivism. AB - New Perspectives (NP) aims to prevent persistent criminal behavior. We examined the long-term effectiveness of NP and whether the effects were moderated by demographic and delinquency factors. At-risk youth aged 12 to 19 years were randomly assigned to the intervention group (NP, n = 47) or care as usual (CAU, n = 54). Official and self-report data were collected to assess recidivism. NP was not more effective in reducing delinquency levels and recidivism than CAU. Also, no moderator effects were found. The overall null effects are discussed, including further research and policy implications. PMID- 29338565 TI - Associations of the lipid genetic variants Thr54 ( FABP2) and -493T ( MTTP) with total cholesterol and low-density lipoprotein cholesterol levels in Mexican subjects. AB - Objective Mexico has one of the world's highest rates of obesity, which is influenced by lipid-genetic and lifestyle factors. This study aimed to determine whether FABP2 (Ala54Thr) and MTTP (-493 G/T) genetic polymorphisms are associated with metabolic disorders in Mexican subjects. Methods A total of 523 subjects participated in a cross-sectional study. Genotyping for FABP2 and MTTP was performed using real-time RT-PCR. Biochemical and anthropometric data were evaluated. Results The genetically at-risk group (Thr54/-493T) was associated with significantly higher total and low-density lipoprotein cholesterol levels (difference between genetically at-risk group and wild-type group: 10.6 mg/dL and 8.94 mg/dL, respectively). Carriers within the genetically at-risk group had a significantly higher prevalence rate of hypercholesterolaemia (42.5% vs. 32.0%) and higher LDL-C levels (37.6% vs. 26.4%) than did non-carriers. Conclusions Subjects who are genetically at risk (Thr54/-493T) have higher total cholesterol levels, low-density lipoprotein cholesterol levels, and prevalence rate of hypercholesterolaemia. These findings highlight the importance of basing nutritional intervention strategies for preventing and treating chronic diseases on individual genetic characteristics. PMID- 29338566 TI - Constructing heparin-modified pancreatic decellularized scaffold to improve its re-endothelialization. AB - Pancreas transplantation is considered as a promising therapeutic option with the potential to cure diabetes. However, efficacy of current clinical transplantation is limited by the donor organ. With regard to creating a functional pancreas tissue equivalent for transplantation, vascularization remains a large obstacle. To enhance the angiogenic properties of pancreatic decellularized scaffold, surface modification of the vasculature was used to promote endothelialization efficiency. In this study, an endothelialized pancreatic decellularized scaffold was obtained through heparin modification under mild conditions. The immobilization of heparin was performed through 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide and N-Hydroxysuccinimide. The morphology, ultra-structure and porosity of the heparinized scaffold were characterized by toluidine blue staining, scanning electron microscope and infrared spectrum. The adhesion, proliferation and angiogenesis of human umbilical vein endothelial cells on heparin-pancreatic decellularized scaffold were also researched in vitro. In vivo transplantation was also performed to observe the location of human umbilical vein endothelial cells and the formation of new blood vessel, which exhibited significant differences with pancreatic decellularized scaffold group (p<0.05). These findings indicated that the endothelialized heparin-pancreatic decellularized scaffold may be used to solve the problem of blood supply and to support the function of insulin-secreting cells better after in vivo transplantation, and therefore, would be a potential candidate for pancreatic tissue engineering. PMID- 29338567 TI - Outcomes with lower intensity therapy in TP53-mutated acute myeloid leukemia. PMID- 29338568 TI - Lactoferrin plus health education versus total dose infusion (TDI) of low molecular weight (LMW) iron dextran for treating iron deficiency anemia (IDA) in pregnancy: a randomized controlled trial. AB - BACKGROUND: Iron deficiency anemia (IDA) is one of the most common medical disorder disturbing pregnancies particularly in low resources countries, and contributes significantly to morbidities and mortalities. Thus, early diagnosis and prompt management of IDA is highly recommended. AIM: To Test the efficacy and safety of oral lactoferrin plus health education provided by a nurse versus total dose infusion (TDI) of low-molecular weight (LMW) iron dextran for treating IDA in the second and third trimester of pregnancy. DESIGN: A prospective interventional, randomized, parallel-group, single-center longitudinal study. SETTING: Woman's Health Assiut University Hospital, Assiut, Egypt, at the outpatient clinic and inpatient unit. It comprised 120 cases divided into two groups as pineapple flavored lactoferrin oral sachets 100 mg twice daily with health education (group A) and TDI of LMW iron dextran (group B). MAIN OUTCOME MEASURES: The primary efficacy parameter was clinical improvement and the amount of increase in hemoglobin concentration by 4 weeks after therapy, secondary outcome measures included measurement of the rest of RBC, and iron indices, the adverse effects related to iron therapy and the patient compliance to the treatment. RESULTS: There was insignificant difference between both groups regarding sociodemographic data, parity and mean gestational age. Both groups showed a significant clinical improvement of anemia 4 weeks post-therapy. There was no statistically significant difference in mean Hb level improvement in both groups after 1 month of therapy. However, mean corpuscular volume (MCV) and mean corpuscular hemoglobin (MCH) improved significantly more in group B than A while iron indices (serum iron and serum ferritin) were significantly more in group A than group B. CONCLUSIONS: Pineapple flavored lactoferrin oral sachets plus health education can be widely used as an alternative to TDI iron dextran supplementation due to clinical as well as laboratory improvement of IDA during pregnancy after 1 month of treatment. Proper health education of the pregnant women with nurse recommendations of balanced diet containing good sources of iron would increase awareness of pregnant women and help eradicate IDA with its serious sequel during pregnancy. PMID- 29338569 TI - Death rituals, religious beliefs, and grief of Turkish women. AB - Grief following a death loss is a common experience that all individuals face at some point in life. There, however, are only a few in-depth studies regarding grief in cultures around the world and specific roles that rituals and beliefs related to death may have in the grieving process. Results of interview data from eight grieving Turkish women revealed three themes: (a) metaphors of loss, (b) funeral rituals, and (c) rituals in relation to control and personal factors. Overall, participants' sense of control appeared to influence their grief experiences and perceptions of rituals. PMID- 29338570 TI - A Novel Rubric to Evaluate Wearable Cameras for Assessment of Interrater Reliability. AB - Research has reported on traditional methods of assessing interrater reliability but, currently, no such standard protocol exists for selection of alternative methods of assessing interrater reliability, such as wearable video cameras. The professions of occupational therapy and occupational science take a unique ecological perspective when evaluating individuals, which focuses on the naturalistic perspective of an individual, ideally resulting in optimal performance. Given current advancements in technology, wearable, low-cost, unobtrusive, first-person view digital video cameras are readily available for use in research. The researchers generated an original rubric for critiquing cameras, then trialed four cameras for use in a future interrater reliability study. This standardized protocol fills a gap in the field and can be used by future researchers searching for a standardized method of camera selection. PMID- 29338571 TI - Erratum. PMID- 29338572 TI - Implementation of additional prescribing authorization among oncology pharmacists in Alberta. AB - Purpose To describe the practice settings and prescribing practices of oncology pharmacists with additional prescribing authorization. Methods A descriptive, cross-sectional survey of all oncology pharmacists in Alberta was conducted using a web-based questionnaire over four weeks between March and April 2016. Pharmacists were identified from the Cancer Services Pharmacy Directory and leadership staff in Alberta Health Services. Descriptive statistics were used to describe the practice setting, prescribing practices, motivators to apply for additional prescribing authorization, and the facilitators and barriers of prescribing. Logistic regression was used to explore factors associated with having additional prescribing authorization. Results The overall response rate was 41% (71 of 175 pharmacists). Oncology pharmacists with additional prescribing authorization made up 38% of respondents. They primarily worked in urban, tertiary cancer centers, and practiced in ambulatory care. The top 3 clinical activities they participated in were medication reconciliation, medication counseling/education, and ambulatory patient assessment. Respondents thought additional prescribing authorization was most useful for ambulatory patient assessment and follow-up. Antiemetics were prescribed the most often. The median number of prescriptions written in an average week of clinical work was 5. Competence, self-confidence, and the potential impact on patient care/perceived impact on work environment were the strongest facilitators of prescribing. The strongest motivators to apply for additional prescribing authorization were relevancy to practice, the potential for increased efficiency, and advancing the profession. Conclusion The current majority of oncology pharmacist prescribing in Alberta occurs in ambulatory care with a large focus on antiemetic prescribing. Pharmacists found additional prescribing authorization most useful for ambulatory patient assessment and follow-up. PMID- 29338573 TI - Triphenylphosphine-docetaxel conjugate-incorporated albumin nanoparticles for cancer treatment. AB - AIM: The objective of this study was to develop a mitochondria-targeted anticancer drug, docetaxel (DTX), for chemotherapy. MATERIALS & METHODS: The DTX was conjugated to 4-carboxybutyl triphenylphosphonium (TPP) to enhance mitochondrial targeting, and the TPP-DTX conjugate was further loaded into folate cholesteryl albumin (FA-chol-BSA) nanoparticles (NPs) to improve its biocompatibility. RESULTS & CONCLUSION: In vitro studies showed that TPP-DTX and its NP primarily accumulated in the mitochondria; generated high reactive oxygen species, leading to mitochondrial disruption and cell apoptosis; and had a higher cytotoxicity against cancer cells. In vivo antitumor studies indicated that the NP significantly suppressed tumor growth compared with free drugs in xenograft tumor-bearing mice. Our results demonstrated that TPP-DTX@FA-chol-BSA NPs could be a promising mitochondria-targeted anticancer prodrug for chemotherapy. PMID- 29338574 TI - Protein nanoparticles are nontoxic, tuneable cell stressors. AB - AIM: Nanoparticle-cell interactions can promote cell toxicity and stimulate particular behavioral patterns, but cell responses to protein nanomaterials have been poorly studied. RESULTS: By repositioning oligomerization domains in a simple, modular self-assembling protein platform, we have generated closely related but distinguishable homomeric nanoparticles. Composed by building blocks with modular domains arranged in different order, they share amino acid composition. These materials, once exposed to cultured cells, are differentially internalized in absence of toxicity and trigger distinctive cell adaptive responses, monitored by the emission of tubular filopodia and enhanced drug sensitivity. CONCLUSION: The capability to rapidly modulate such cell responses by conventional protein engineering reveals protein nanoparticles as tuneable, versatile and potent cell stressors for cell-targeted conditioning. PMID- 29338575 TI - Characterization of medium-chain-length polyhydroxyalkanoate biosynthesis by Pseudomonas mosselii TO7 using crude glycerol. AB - Polyhydroxyalkanoates (PHAs) are biopolyesters produced by microorganisms that are environmentally friendly. PHAs can be used to replace traditional plastic to reduce environmental pollution in various fields. PHA production costs are high because PHA must be produced from a carbon substrate. The purpose of this study was to find the strain that can used the BDF by-product as the sole carbon source to produce high amounts of medium-chain-length PHA. Three isolates were evaluated for potential PHA production by using biodiesel-derived crude glycerol as the sole carbon source. Among them, Pseudomonas mosselii TO7 yielded high PHA content. The PHA produced from P. mosselii TO7 were medium-chain-length-PHAs. The PHA content of 48% cell dry weight in 48 h with a maximum PHA productivity of 13.16 mg PHAs L-1 h-1. The narrow polydispersity index value of 1.3 reflected the homogeneity of the polymer chain, which was conducive to industrial applications. PMID- 29338576 TI - Effect of clinical response to active drugs and placebo on antipsychotics and mood stabilizers relative efficacy for bipolar depression and mania: A meta regression analysis. AB - BACKGROUND: Randomised placebo-controlled trials investigating treatments for bipolar disorder have been hampered by wide variations of active drugs and placebo clinical response rates. It is important to estimate whether the active drug or placebo response has a greater influence in determining the relative efficacy of drugs for psychosis (antipsychotics) and relapse prevention (mood stabilisers) for bipolar depression and mania. METHODS: We identified 53 randomised, placebo-controlled trials assessing antipsychotic or mood stabiliser monotherapy ('active drugs') for bipolar depression or mania. We carried out random-effects meta-regressions, estimating the influence of active drugs and placebo response rates on treatment relative efficacy. RESULTS: Meta-regressions showed that treatment relative efficacy for bipolar mania was influenced by the magnitude of clinical response to active drugs ( p=0.002), but not to placebo ( p=0.60). On the other hand, treatment relative efficacy for bipolar depression was influenced by response to placebo ( p=0.047), but not to active drugs ( p=0.98). CONCLUSIONS: Despite several limitations, our unexpected findings showed that antipsychotics / mood stabilisers relative efficacy for bipolar depression seems unrelated to active drugs response rates, depending only on clinical response to placebo. Future research should explore strategies to reduce placebo related issues in randomised, placebo-controlled trials for bipolar depression. PMID- 29338577 TI - Modeling Sluggishness in Binaural Unmasking of Speech for Maskers With Time Varying Interaural Phase Differences. AB - In studies investigating binaural processing in human listeners, relatively long and task-dependent time constants of a binaural window ranging from 10 ms to 250 ms have been observed. Such time constants are often thought to reflect "binaural sluggishness." In this study, the effect of binaural sluggishness on binaural unmasking of speech in stationary speech-shaped noise is investigated in 10 listeners with normal hearing. In order to design a masking signal with temporally varying binaural cues, the interaural phase difference of the noise was modulated sinusoidally with frequencies ranging from 0.25 Hz to 64 Hz. The lowest, that is the best, speech reception thresholds (SRTs) were observed for the lowest modulation frequency. SRTs increased with increasing modulation frequency up to 4 Hz. For higher modulation frequencies, SRTs remained constant in the range of 1 dB to 1.5 dB below the SRT determined in the diotic situation. The outcome of the experiment was simulated using a short-term binaural speech intelligibility model, which combines an equalization-cancellation (EC) model with the speech intelligibility index. This model segments the incoming signal into 23.2-ms time frames in order to predict release from masking in modulated noises. In order to predict the results from this study, the model required a further time constant applied to the EC mechanism representing binaural sluggishness. The best agreement with perceptual data was achieved using a temporal window of 200 ms in the EC mechanism. PMID- 29338579 TI - Multi-spectroscopic and molecular modeling studies to reveal the interaction between propyl acridone and calf thymus DNA in the presence of histone H1: binary and ternary approaches. AB - DNA is the primary target of many anticancer drugs involved in important intercellular processes, especially in transcriptional regulation, and histone is known to inhibit gene expression. Small molecules can bind to histone-DNA and impair the cell division, growth, inhibition, and apoptosis in cancer cells. In this research, the interaction of a histone H1-calf thymus DNA (ct DNA) complex and propyl acridone (PA) was investigated in Tris-HCl buffer, pH 6.8, using multi spectroscopic, viscosity, and molecular modeling techniques. The Stern Volmer plot of the (H1-ct DNA) PA complex demonstrated two sets of binding sites with various binding affinities at three different temperatures. Thermodynamic parameters (DeltaH degrees < 0 and DeltaS degrees < 0) indicated that hydrogen bonds and van der Waals forces played the main roles in the binding of the drug to H1-ct DNA. The interaction between PA and ct DNA as well as (H1-ct-DNA) in the presence of acridine orange and ethidium bromide showed two different interaction behaviors in ternary systems. According to results from UV absorption spectroscopy and melting temperature (Tm) measurements, the binding mode of PA with ct DNA and the (H1-ct DNA) complex was indicative of an intercalative binding for the binary system and of both intercalative with groove binding with molecular fraction for the ternary system. Furthermore, the PA-induced detectable changes in the circular dichroism spectrum of ct DNA as well as changes in its viscosity. All of the experimental results proved that the intercalative binding between PA and ct DNA as well as the (H1-ct DNA) complex as binary and ternary systems must be predominant. The results obtained from experimental data were in good agreement with molecular modeling with regard to the determination of the binding site of PA to ct DNA in the absence and presence of histone H1. PMID- 29338578 TI - Cannabis Use is Associated with Lower Odds of Prescription Opioid Analgesic Use Among HIV-Infected Individuals with Chronic Pain. AB - BACKGROUND: Chronic pain is common in the United States and prescribed opioid analgesics use for noncancer pain has increased dramatically in the past two decades, possibly accounting for the current opioid addiction epidemic. Co-morbid drug use in those prescribed opioid analgesics is common, but there are few data on polysubstance use patterns. OBJECTIVE: We explored patterns of use of cigarette, alcohol, and illicit drugs in HIV-infected people with chronic pain who were prescribed opioid analgesics. METHODS: We conducted a secondary data analysis of screening interviews conducted as part of a parent randomized trial of financial incentives to improve HIV outcomes among drug users. In a convenience sample of people with HIV and chronic pain, we collected self-report data on demographic characteristics; pain; patterns of opioid analgesic use (both prescribed and illicit); cigarette, alcohol, and illicit drug use (including cannabis, heroin, and cocaine) within the past 30 days; and current treatment for drug use and HIV. RESULTS: Almost half of the sample of people with HIV and chronic pain reported current prescribed opioid analgesic use (N = 372, 47.1%). Illicit drug use was common (N = 505, 63.9%), and cannabis was the most commonly used illicit substance (N = 311, 39.4%). In multivariate analyses, only cannabis use was significantly associated with lower odds of prescribed opioid analgesic use (adjusted odds ratio = 0.57; 95% confidence interval: 0.38-0.87). Conclusions/Importance: Our data suggest that new medical cannabis legislation might reduce the need for opioid analgesics for pain management, which could help to address adverse events associated with opioid analgesic use. PMID- 29338580 TI - Paeonol nanoemulsion for enhanced oral bioavailability: optimization and mechanism. AB - AIM: The aim of this work was to optimize a nanoemulsion formulation and explain its absorption mechanism in improving the oral bioavailability of paeonol. METHOD: The bioavailability of paeonol was compared between paeonol nanoemulsion group and paeonol suspension group. The in situ single-pass intestine perfusion method, in vitro everted gut sacs method, Western blot analysis and Caco-2 cell transport studies were used to investigate the absorption mechanism of nanoemulsion. RESULTS: Nanoemulsion was proved to enhance the bioavailability of paeonol. P-glycoprotein (P-gp) mediated efflux might be the main reason affecting the oral absorption of paeonol. The prepared nanoemulsion prevented the P-gp mediated efflux and enhanced the bioavailability of paeonol. CONCLUSION: The overall results revealed that nanoemulsion was an effective vehicle to improve the oral bioavailability of paeonol which resulted from the prevention of P-gp efflux probably. PMID- 29338581 TI - Perceived Discrimination as a Risk Factor for Use of Emerging Tobacco Products: More Similarities Than Differences Across Demographic Groups and Attributions for Discrimination. AB - BACKGROUND: Perceived discrimination has been associated with cigarette smoking and other substance use among members of disadvantaged minority groups. However, most studies have focused on a single minority group, have not considered the individual's attribution for the discrimination, and have not considered emerging tobacco products. OBJECTIVE: This study examined the associations between perceived discrimination and use of six tobacco products (cigarettes, e cigarettes, cigars, pipe tobacco, hookah, and smokeless tobacco) in a diverse sample of 1,068 adults in the United States. METHODS: Participants were recruited on Amazon's Mechanical Turk and participated in an online survey. Logistic regression models were used to examine the association between perceived discrimination and use of each tobacco product. Interactions between discrimination and demographic characteristics, and between discrimination and perceived reasons for discrimination, were evaluated. RESULTS: Controlling for age, sex, race/ethnicity, education, and socioeconomic status, perceived discrimination was a risk factor for current use of five of the six tobacco products. These associations were consistent across racial/ethnic groups and regardless of the individual's attribution for the reason for the discrimination. CONCLUSIONS: Results indicate that perceived discrimination is a risk factor for the use of multiple tobacco products, and that this association is not limited to particular demographic groups or types of discrimination. Public health programs could potentially reduce tobacco-related disease by teaching healthier ways to cope with discrimination. PMID- 29338582 TI - A human pericardium biopolymeric scaffold for autologous heart valve tissue engineering: cellular and extracellular matrix structure and biomechanical properties in comparison with a normal aortic heart valve. AB - The objective of our study was to compare the cellular and extracellular matrix (ECM) structure and the biomechanical properties of human pericardium (HP) with the normal human aortic heart valve (NAV). HP tissues (from 12 patients) and NAV samples (from 5 patients) were harvested during heart surgery. The main cells in HP were pericardial interstitial cells, which are fibroblast-like cells of mesenchymal origin similar to the valvular interstitial cells in NAV tissue. The ECM of HP had a statistically significantly (p < 0.001) higher collagen I content, a lower collagen III and elastin content, and a similar glycosaminoglycans (GAGs) content, in comparison with the NAV, as measured by ECM integrated density. However, the relative thickness of the main load-bearing structures of the two tissues, the dense part of fibrous HP (49 +/- 2%) and the lamina fibrosa of NAV (47 +/- 4%), was similar. In both tissues, the secant elastic modulus (Es) was significantly lower in the transversal direction (p < 0.05) than in the longitudinal direction. This proved that both tissues were anisotropic. No statistically significant differences in UTS (ultimate tensile strength) values and in calculated bending stiffness values in the longitudinal or transversal direction were found between HP and NAV. Our study confirms that HP has an advantageous ECM biopolymeric structure and has the biomechanical properties required for a tissue from which an autologous heart valve replacement may be constructed. PMID- 29338583 TI - Endocannabinoid engagement of CB2 regulates RSV-induced immunity. PMID- 29338584 TI - Effect of acute ingestion of beta-hydroxybutyrate salts on the response to graded exercise in trained cyclists. AB - Acute ingestion of ketone salts induces nutritional ketosis by elevating beta hydroxybutyrate (betaHB), but few studies have examined the metabolic effects of ingestion prior to exercise. Nineteen trained cyclists (12 male, 7 female) undertook graded exercise (8 min each at ~30%, 40%, 50%, 60%, 70%, and 80% VO2peak) on a cycle ergometer on two occasions separated by either 7 or 14 days. Trials included ingestion of boluses of either (i) plain water (3.8 mL kg body mass-1) (CON) or (ii) betaHB salts (0.38 g kg body mass-1) in plain water (3.8 mL kg body mass-1) (KET), at both 60 min and 15 min prior to exercise. During KET, plasma [betaHB] increased to 0.33 +/- 0.16 mM prior to exercise and 0.44 +/- 0.15 mM at the end of exercise (both p < .05). Plasma glucose was 0.44 +/- 0.27 mM lower (p < .01) 30 min after ingestion of KET and remained ~0.2 mM lower throughout exercise compared to CON (p < .001). Respiratory exchange ratio (RER) was higher during KET compared to CON (p < .001) and 0.03-0.04 higher from 30%VO2peak to 60%VO2peak (all p < .05). No differences in plasma lactate, rate of perceived exertion, or gross or delta efficiency were observed between trials. Gastrointestinal symptoms were reported in 13 out of 19 participants during KET. Acute ingestion of betaHB salts induces nutritional ketosis and alters the metabolic response to exercise in trained cyclists. Elevated RER during KET may be indicative of increased ketone body oxidation during exercise, but at the plasma betaHB concentrations achieved, ingestion of betaHB salts does not affect lactate appearance, perceived exertion, or muscular efficiency. PMID- 29338585 TI - The Effects of a Nutrition Media Literacy Intervention on Parents' and Youths' Communication about Food. AB - Interventions addressing links between media exposure and obesity risk for school age youth have not explicitly addressed the role of family communication about media. Youths' influence attempts on parents to purchase advertised foods can create conflict and negatively affect parental food choices. This study tested whether a family-based media literacy curriculum improves parents' media management skills and decreases youths' susceptibility to appealing but unrealistic food marketing. A matched-group pretest/posttest field experiment of parent-youth dyads with control group (N = 100 dyads, youth M = 11 years of age) tested the six-session curriculum. Hypotheses were analyzed using a Bayesian structural equation model. The curriculum increased parents' active negative mediation to foster youths' critical thinking about food marketing, b* = 0.35, 95% CCI [0.17, 0.50], increased parent Efficacy for making healthy dietary changes for their families, b* = 0.59, 95% CCI [0.41, 0.75], and fostered family discussion about nutrition labels (total effect = 0.22). Additionally, cumulative influences of Perceived Desirability and Wishful Identification on youths' requests for marketed foods were reduced (total effect = 0.04). Media literacy education can empower parents and improve youths' critical thinking to reduce effects of food marketing on families and improve use of media to obtain nutrition information. PMID- 29338586 TI - Association of CXCL13 serum level and ultrasonographic findings of joints in patients with systemic lupus erythematosus and Jaccoud's arthropathy. AB - Objectives The objective of this paper is to perform an ultrasonography (US) analysis of hands and wrists in two groups of patients with systemic lupus erythematosus (SLE), with and without Jaccoud's arthropathy, matched by age and disease duration and to correlate them with levels of CXCL13 clinical features, laboratory tests and disease activity score. Methods Sixty-four patients with SLE were enrolled, 32 with and 32 without Jaccoud's arthropathy. Each patient underwent physical examination, laboratory tests (including CXCL13 by ELISA) and bilateral US. Synovial hypertrophy, tenosynovitis and erosions were evaluated according to a semiquantitative grading system with a 0-3 rating. US findings were correlated with serum levels of CXCL13, other serological parameters and disease activity index. Results Synovitis was found in 25/64 patients (39%) and tenosynovitis in 14/64 (22%). These findings were more frequent in SLE patients with Jaccoud's arthropathy, particularly tenosynovitis ( p = 0.002) and synovitis ( p = 0.01). Median serum level of CXCL13 was 20.16 pg/ml in the whole population (23.21 pg/ml in the Jaccoud's arthropathy group and 11.48 pg/ml in the group without). There was an association between the presence of disease activity and high level of CXCL13 ( p = 0.004). However, no association was found between high levels of CXCL13 and "arthritis" in SLEDAI, swollen joints on physical examination or synovitis on US. Conclusions US findings in joints of SLE patients with Jaccoud's arthropathy confirm that synovitis and tenosynovitis are common in these patients. In addition, serum level of CXCL13 is associated with disease activity in SLE but does not seem to be a biomarker for arthritis in these patients. PMID- 29338587 TI - Antiphosphatidylserine/prothrombin (aPS/PT) antibodies are associated with Raynaud phenomenon and migraine in primary thrombotic antiphospholipid syndrome. AB - Objectives Antibodies to phosphatidylserine/prothrombin complex (aPS/PT) detectable in sera of some patients with antiphospholipid syndrome (APS) have been shown to correlate with thrombosis. However, associations of aPS/PT antibodies with APS related disorders remain unclear. Aim To evaluate whether there are any associations between aPS/PT antibodies and Raynaud phenomenon, migraine and/or valvular lesions in primary thrombotic APS (PAPS). Methods We enrolled 67 consecutive patients (56 women) with thrombotic PAPS (VTE in 80.6%), aged 46.2 +/- 13.5 years. The exclusion criteria were: acute coronary syndromes or stroke within preceding 6 months, cancer, severe comorbidities and pregnancy. The IgG and IgM aPS/PT antibodies were determined by ELISA with the cut-off of 30 units. We recorded Raynaud phenomenon, migraine and valvular lesions. Results Positive IgM or/and IgG aPS/PT antibodies were observed in 29 patients (43.3%), with a higher prevalence of IgM antibodies ( n = 27, 40.3%) compared with IgG isotype ( n = 12, 17.9%, p = 0.014). aPS/PT antibodies were observed most commonly in patients with triple aPL ( n = 12, 85.7%) compared with those with double ( n = 5, 35.7%) or single aPL antibodies (n = 12, 30.8%, p = 0.03), with no association with demographics, the ANA titre, the type of thrombotic events or medications. Raynaud phenomenon, migraine and valvular lesions were observed in 15% ( n = 10), 30% ( n = 20) and 18% ( n = 12) of the patients, respectively. Raynaud phenomenon and migraine, but not valvular lesions, were markedly more frequent in PAPS patients presenting with positive aPS/PT antibodies ( n = 10, 34.5% vs. n = 0, 0%; p = 0.0001). Conclusions In PAPS patients aPS/PT antibodies are related to the occurrence of both Raynaud phenomenon and migraine. PMID- 29338588 TI - Epstein-Barr virus infection and type I interferon signature in patients with systemic lupus erythematosus. AB - Epstein-Barr (EB) virus infection has long been speculated to evoke systemic lupus erythematosus (SLE). Since a virus infection can induce interferon (IFN) system activation, we aimed to discover the relationship between the two in the progression of SLE in a Chinese inpatient cohort. Methods Peripheral blood mononuclear cells and sera were isolated from 116 SLE patients and 76 healthy controls. Antibodies against EBV-VCA (IgM and IgG) and EBNA (IgG) along with IFNalpha in patient sera were detected with enzyme-linked immunosorbent assays. The EB virus DNA load was detected by real-time quantitative polymerase chain reaction. Peripheral blood mononuclear cells both from patients and controls were isolated immediately. The mRNA from these samples was subjected to real-time PCR for the latent genes EBNA1, EBNA2 and LMP1 of EB virus, as well as four IFN stimulated genes (ISGs) ( OASL, MX1, ISG15 and LY6E). The antibody results were used to determine the stage of EBV infection (lytic, latent, or previous). Results SLE patients had a higher rate of lytic infection defined as positive EBV VCA IgM antibody (39.66% vs 10.53%, p = 0.027), but not the EB virus DNA load. Patients with lytic EB virus infection had higher SLEDAI scores than patients with non-lytic infection (15.24 +/- 2.63 vs 13.79 +/- 3.24, p = 0.012). LMP1 was the only EBV gene that had a higher expression level in SLE patients than in healthy controls (3.26 +/- 2.95 vs 1.00 +/- 2.89, p = 0.000). It was also positively correlated with SLEDAI scores ( r = 0.462, p = 0.000). Levels of IFNalpha and the four ISGs were all significantly higher in SLE patients than in healthy controls ( p < 0.05). LMP1 was positively correlated with the four ISGs ( r = 0.403 ~ 0.494, p < 0.05) in SLE patients but not in healthy controls ( r = 0.153 ~ 0.129, p > 0.05). Neither EBNA1 nor EBNA2 was correlated with the ISGs in SLE patients or in healthy controls. Conclusions The SLE patients had higher rates of lytic EB virus infection and higher latent gene LMP1 expression, which might be associated with the development and/or the progression of SLE via the type I IFN pathway. The underlying mechanism needs more study. PMID- 29338589 TI - Population Health: School Health Services and School Nursing. PMID- 29338590 TI - Histopathology and Antibodies. PMID- 29338591 TI - Association between health status and sociodemographic, clinical and treatment disparities in the Patient-centered Outcomes Related to TReatment Practices in Peripheral Arterial Disease: Investigating Trajectories (PORTRAIT) registry. AB - Patients with peripheral artery disease (PAD) and intermittent claudication (IC) have impaired functional status and quality of life. However, little is known about which factors are associated with poorer health status at the time of initial presentation for PAD specialty care. Characterization of such features might provide insight into disparities that impact health status in this population. A total of 1258 patients from the United States, the Netherlands and Australia with new or worsened IC were enrolled at their first PAD specialty care visit between June 2011 and December 2015. The mean Peripheral Artery Questionnaire (PAQ) Summary Score (range 0-100), a disease-specific health status measure, was 49.2 +/- 21.9. Hierarchical, multivariable linear regression was used to relate patient characteristics to baseline PAQ. Patient characteristics independently associated with poorer health status were age ( p < 0.001), female sex ( p < 0.001), not being married ( p = 0.02), economic burden (moderate/severe vs none, moderate/severe vs some; p = 0.03), difficulty getting care (moderate/severe vs none, moderate/severe vs some; p < 0.001), chronic lung disease ( p = 0.02), back pain ( p < 0.001), bilateral vs unilateral PAD ( p = 0.02), intermittent claudication severity (moderate vs mild, severe vs mild, p < 0.001), and lack of prior participation in an exercise program ( p = 0.005). Disparities in both vascular and non-vascular factors were associated with patients' health status at the time of presentation and should be addressed by all who care for patients with vascular disease. PMID- 29338592 TI - Whole-Genome-Sequencing characterization of bloodstream infection-causing hypervirulent Klebsiella pneumoniae of capsular serotype K2 and ST374. AB - Hypervirulent K. pneumoniae variants (hvKP) have been increasingly reported worldwide, causing metastasis of severe infections such as liver abscesses and bacteremia. The capsular serotype K2 hvKP strains show diverse multi-locus sequence types (MLSTs), but with limited genetics and virulence information. In this study, we report a hypermucoviscous K. pneumoniae strain, RJF293, isolated from a human bloodstream sample in a Chinese hospital. It caused a metastatic infection and fatal septic shock in a critical patient. The microbiological features and genetic background were investigated with multiple approaches. The Strain RJF293 was determined to be multilocis sequence type (ST) 374 and serotype K2, displayed a median lethal dose (LD50) of 1.5 * 102 CFU in BALB/c mice and was as virulent as the ST23 K1 serotype hvKP strain NTUH-K2044 in a mouse lethality assay. Whole genome sequencing revealed that the RJF293 genome codes for 32 putative virulence factors and exhibits a unique presence/absence pattern in comparison to the other 105 completely sequenced K. pneumoniae genomes. Whole genome SNP-based phylogenetic analysis revealed that strain RJF293 formed a single clade, distant from those containing either ST66 or ST86 hvKP. Compared to the other sequenced hvKP chromosomes, RJF293 contains several strain-variable regions, including one prophage, one ICEKp1 family integrative and conjugative element and six large genomic islands. The sequencing of the first complete genome of an ST374 K2 hvKP clinical strain should reinforce our understanding of the epidemiology and virulence mechanisms of this bloodstream infection-causing hvKP with clinical significance. PMID- 29338594 TI - Cancer therapeutics through an evolutionary lens. PMID- 29338593 TI - Expression and role of granulocyte macrophage colony-stimulating factor receptor (GM-CSFR) and granulocyte colony-stimulating factor receptor (G-CSFR) on Ph positive acute B lymphoblastic leukemia. AB - OBJECTIVE: We observed that ph + ALL patients administrated with recombinant human G-CSF (rhG-CSF) after intense chemotherapy have presented a trend of disease relapse. Thus, we aim to thoroughly investigate the expression and role of GM-CSFR and G-CSFR on ph + ALL patients. METHOD: SUP-B15, BALL-1 and primary leukemia cells were used in this study. Transcript levels were analyzed by quantitative PCR while cell viability was measured using a CCK-8 assay. Flow cytometry was used to assess the different stages of cell cycle. RESULTS: We found that the mRNA expression levels of GM-CSFR and G-CSFR were higher in patients with ph + ALL, as well as in SUP-B15 cells. rhG-CSF was also observed to promote the viability of SUP-B15 cells while inversely inhibiting BALL-1 cell viability. In addition, we also determined that rhG-CSF (100 ng/ml) decreased the sensitivity of SUP-B15 cells to imatinib and nilotinib, while the results were exactly the contrary for dasatinib. CONCLUSION: We demonstrated high expression levels of GM-CSFR and G-CSFR, as well as their promotable role for viability in ph + ALL cells. We further found that rhG-CSF influenced the sensitivity of SUP B15 cells to TKIs. PMID- 29338595 TI - From NHS to devolved independent regional health services. PMID- 29338597 TI - Imagine ... a better future for the NHS. PMID- 29338598 TI - Using randomised, double-blind, N-of-1 trials of food challenge to diagnose food allergy and assess the effectiveness of food allergen avoidance. PMID- 29338601 TI - Reflections on the development of a therapeutic recreation-based bereavement camp for families whose child has died from serious illness. AB - While bereavement camps serve as a support for children, this study examines a therapeutic recreation-based camp for families who have lost a child. The study triangulated documents, researcher reflection, and staff interviews to highlight the themes of Searching & Finding, Getting to Know, Finding the Balance, and Joining. Developing opportunistically through internal and external factors, the camp's evolution represents a closing of the loop, from supporting families of living children to also supporting the families of children who have died. Understanding the camp's evolution may facilitate other programs by highlighting the challenges in developing the program and the lessons learned. PMID- 29338603 TI - Emerging roles of inositol pyrophosphates as key modulators of fungal pathogenicity. AB - Inositol pyrophosphates (PP-IPs) are energy-rich small molecules that are omnipresent in eukaryotic cells, from yeast to mammals, playing central roles in overall cellular homeostasis as a diverse and multifaceted class of intracellular messengers. Recent studies of the metabolic pathways and physiological roles of PP-IPs in the human pathogenic fungus Cryptococcus neoformans have revealed that the PP-IP5 (IP7) is a key metabolite essential for fungal metabolic adaptation to the host environment, immune recognition, and pathogenicity. This suggests the PP IP biosynthesis pathway, comprising phospholipase C1 (Plc1) and a series of sequentially acting inositol polyphosphate kinases (IPKs), as a new virulence related signaling pathway in C. neoformans. Given that fungal species have a reduced array of the kinases required for the synthesis of PP-IPs and that the homology between human and fungal IPKs is restricted to a few catalytically important residues, identification of IPK inhibitors specifically targeting the kinases of pathogenic fungi has emerged as a desirable and achievable strategy for antifungal drug development. PMID- 29338602 TI - Sequential drug treatment algorithm for agitation and aggression in Alzheimer's and mixed dementia. AB - INTRODUCTION: Behavioural and psychological symptoms of dementia (BPSD) include agitation and aggression in people with dementia. BPSD is common on inpatient psychogeriatric units and may prevent individuals from living at home or in residential/nursing home settings. Several drugs and non-pharmacological treatments have been shown to be effective in reducing behavioural and psychological symptoms of dementia. Algorithmic treatment may address the challenge of synthesizing this evidence-based knowledge. METHODS: A multidisciplinary team created evidence-based algorithms for the treatment of behavioural and psychological symptoms of dementia. We present drug treatment algorithms for agitation and aggression associated with Alzheimer's and mixed Alzheimer's/vascular dementia. Drugs were appraised by psychiatrists based on strength of evidence of efficacy, time to onset of clinical effect, tolerability, ease of use, and efficacy for indications other than behavioural and psychological symptoms of dementia. RESULTS: After baseline assessment and discontinuation of potentially exacerbating medications, sequential trials are recommended with risperidone, aripiprazole or quetiapine, carbamazepine, citalopram, gabapentin, and prazosin. Titration schedules are proposed, with adjustments for frailty. Additional guidance is given on use of electroconvulsive therapy, optimization of existing cholinesterase inhibitors/memantine, and use of pro re nata medications. CONCLUSION: This algorithm-based approach for drug treatment of agitation/aggression in Alzheimer's/mixed dementia has been implemented in several Canadian Hospital Inpatient Units. Impact should be assessed in future research. PMID- 29338605 TI - Noteworthy Literature published in 2017 for Cardiac Critical Care. AB - In 2017, many high-impact articles appeared in the literature. This is the third edition of an annual review of articles related to postoperative cardiac critical care that may affect the cardiac anesthesiologist. This year explores vasopressor and inotropic support, timing of renal replacement therapy, management of postoperative respiratory insufficiency, and targeted temperature therapy. PMID- 29338604 TI - Clinical significance of cerebral microbleeds on MRI: A comprehensive meta analysis of risk of intracerebral hemorrhage, ischemic stroke, mortality, and dementia in cohort studies (v1). AB - Background Cerebral microbleeds can confer a high risk of intracerebral hemorrhage, ischemic stroke, death and dementia, but estimated risks remain imprecise and often conflicting. We investigated the association between cerebral microbleeds presence and these outcomes in a large meta-analysis of all published cohorts including: ischemic stroke/TIA, memory clinic, "high risk" elderly populations, and healthy individuals in population-based studies. Methods Cohorts (with > 100 participants) that assessed cerebral microbleeds presence on MRI, with subsequent follow-up (>=3 months) were identified. The association between cerebral microbleeds and each of the outcomes (ischemic stroke, intracerebral hemorrhage, death, and dementia) was quantified using random effects models of (a) unadjusted crude odds ratios and (b) covariate-adjusted hazard rations. Results We identified 31 cohorts ( n = 20,368): 19 ischemic stroke/TIA ( n = 7672), 4 memory clinic ( n = 1957), 3 high risk elderly ( n = 1458) and 5 population-based cohorts ( n = 11,722). Cerebral microbleeds were associated with an increased risk of ischemic stroke (OR: 2.14; 95% CI: 1.58-2.89 and adj-HR: 2.09; 95% CI: 1.71-2.57), but the relative increase in future intracerebral hemorrhage risk was greater (OR: 4.65; 95% CI: 2.68-8.08 and adj-HR: 3.93; 95% CI: 2.71-5.69). Cerebral microbleeds were an independent predictor of all-cause mortality (adj-HR: 1.36; 95% CI: 1.24-1.48). In three population-based studies, cerebral microbleeds were independently associated with incident dementia (adj HR: 1.35; 95% CI: 1.00-1.82). Results were overall consistent in analyses stratified by different populations, but with different degrees of heterogeneity. Conclusions Our meta-analysis shows that cerebral microbleeds predict an increased risk of stroke, death, and dementia and provides up-to-date effect sizes across different clinical settings. These pooled estimates can inform clinical decisions and trials, further supporting cerebral microbleeds role as biomarkers of underlying subclinical brain pathology in research and clinical settings. PMID- 29338606 TI - Utility of mean sphered cell volume and mean reticulocyte volume for the diagnosis of hereditary spherocytosis. AB - INTRODUCTION: Hereditary spherocytosis (HS) is the most common congenital hemolytic anemia, characterized by anemia, jaundice, and splenomegaly. The diagnosis of HS relies on symptoms of hemolysis, a family history of HS, and a positive laboratory test which is usually the osmotic fragility test (OFT). We conducted a study to assess the utility of mean corpuscular hemoglobin concentration (MCHC), mean corpuscular volume (MCV), mean sphered cell volume (MSCV), and mean reticulocyte volume (MRV) in the diagnosis of HS and if these are helpful in distinguishing cases of HS from immune hemolytic anemia. METHODS: A total of 102 patients suspected to have HS were enrolled. In addition 10 cases of immune hemolytic anemia (IHA) were included in the study and performance of the above screening tests was evaluated. The diagnosis of HS was based on incubated OFT, eosin 5'-maleimide (EMA) dye binding test, and flowcytometric OFT. RESULTS: A total of 29 patients were diagnosed as having HS. The sensitivity and specificity for diagnosis HS by MCHC > 35 g/dL was 44.82%, and DeltaMCV-MSCV > 10 fL has a sensitivity and specificity of 82.75% and 95.9% for diagnosis of HS. Using an algorithm of DeltaMCV-MSCV > 10 fL and DeltaMRV-MSCV < 25, for the differentiation of HS from IHA had sensitivity of 68.9% and specificity of 98.8%. PMID- 29338607 TI - Immunotherapies in transplantation and cancer: 22nd NAT meeting/2nd NAT LabEx IGO joint meeting; 1-2 June 2017, Nantes, France. AB - This 22nd edition of the Nantes Actualites Transplantation annual meeting was co organized for the second time with the LabEx Immuno-Graft Oncology network. This international meeting was held on 1 and 2 June 2017 in Nantes (western France). The topic of this 2-day meeting was 'Immunotherapies in transplantation and cancer'. This meeting brought together 17 international invited speakers, young researchers and 220 attendees mainly from Europe and North America. It was a unique opportunity to bring together the pioneers and leading immunologists in the fields of transplantation and cancer, focusing on shared mechanisms that control immune responses in organ or bone marrow transplantation and in cancer. PMID- 29338608 TI - Immunotherapy of cancer: targeting cancer during active disease or during dormancy? AB - Immunotherapeutic targeting of advanced stage cancers has prolonged the survival of cancer patients, yet its curative efficacy is limited due to tumor immunoediting and escape. On the other hand, human vaccines have been able to eradicate smallpox and control several other infectious diseases. The success has resulted from the administration of vaccines in prophylactic settings, or during latency periods in order to protect an individual during future exposure to the disease rather than curing an established disease. Therefore, administration of immunotherapy at the right time is the key to success. However, instead of focusing on the prevention of cancer, current cancer immunotherapies are often being used in a therapeutic setting with the goal of eliminating tumor cells. The present review of evidence related to cancer immunotherapeutics suggests that immunotherapeutic targeting of tumor dormancy could be more promising than targeting of advanced stage disease to achieve a cure for cancer. PMID- 29338609 TI - Chemotherapy-induced immunomodulation in non-small-cell lung cancer: a rationale for combination chemoimmunotherapy. AB - Spurred by the survival benefits seen with the use of checkpoint blockade in non small-cell lung cancer (NSCLC), there has been a growing interest in the potential applications of immunotherapy. Despite this, the objective response rate for single-agent immunotherapy remains <=20% in patients with advanced NSCLC. A combinatorial approach that utilizes both chemotherapy and immunotherapy is a potential strategy to increase antitumor efficacy. Accumulating evidence has shown that the immunomodulatory effects of chemotherapeutic agents can be exploited in a combinational approach. Herein, we review the influence of specific chemotherapeutic agents on the tumor immune microenvironment in preclinical and clinical studies, and establish the rationale for combination chemoimmunotherapy for the treatment of NSCLC. PMID- 29338611 TI - Hematopoietic and mesenchymal stem cells: a promising new therapy for spondyloarthritis? AB - In the last years, a considerable progress has been made in the treatment of spondyloarthritides. Nonetheless, there remain a considerable number of patients who are unresponsive to all current therapies. Since the late 1990s, numerous trials have investigated the use of stem cell transplantation as a new approach for the treatment of autoimmune disease, particularly with hematopoietic stem cell transplantation. More recently, the research has focused on mesenchymal stem cell application due to their low immunogenicity and immunomodulatory properties. In this article, we summarize available data on hematopoietic stem cell and mesenchymal stem cell use for the treatment of spondyloarthritides and discuss the data gaps and possible research agenda in this area. PMID- 29338610 TI - CNS side effects of immune checkpoint inhibitors: preclinical models, genetics and multimodality therapy. AB - Following cancer treatment, patients often report behavioral and cognitive changes. Novel cancer immunotherapeutics have the potential to produce sustained cancer survivorship, meaning patients will live longer with the side effects of treatment. Given the role of inflammatory pathways in mediating behavioral and cognitive impairments seen in cancer, we aim in this review to discuss emerging evidence for the contribution of immune checkpoint blockade to exacerbate these CNS effects. We discuss ongoing studies regarding the ability of immune checkpoint inhibitors to reach the brain and how treatment responses to checkpoint inhibitors may be modulated by genetic factors. We further consider the use of preclinical tumor-models to study the role of tumor status in CNS effects of immune checkpoint inhibitors and multimodality therapy. PMID- 29338613 TI - Combined systems of different antibiotics with nano-CuO against Escherichia coli and the mechanisms involved. AB - AIM: The combined efficacy of CuO nanoparticles (NPs) with 22 kinds of antibiotics against Escherichia coli was systematic studied, and CuO with cephalexin synergistic system was screened out. METHODS: Antimicrobial susceptibility test included disk diffusion test, checkerboard method and time kill assay. The interactions of CuO NPs and antibiotics were analyzed by x-ray photoelectron spectroscopy, Fourier transform infrared spectra and Zeta. The interactions between bacteria and antibacterial agents were studied by surface plasmon resonance sensor for the first time. RESULTS & CONCLUSION: Synergistic effect (1+1>2) was observed when CuO NPs combined with cephalexin against E. coli. The concentrated cephalexin molecules interacted more strongly with the E. coli cells to make cell wall become loose. Then, CuO NPs were more easily to damage and penetrate cells. Besides, the presence of antibiotics did not enhance Cu2+ release, Cu2+ uptake and reactive oxygen species generation. But the presence of cephalexin greatly enhanced cell permeability in comparison to others. PMID- 29338614 TI - The two mutations of actin-myosin interface and their effect on the dynamics, structures, and functions of skeletal muscle actin. AB - Congenital myopathy is a broad category of muscular diseases with symptoms appearing at the time of birth. One type of congenital myopathy is Congenital Fiber Type Disproportion (CFTD), a severely debilitating disease. The G48D and G48C mutations in the D-loop and the actin-myosin interface are the two causes of CFTD. These mutations have been shown to significantly affect the structure and function of muscle fibers. To the author's knowledge, the effects of these mutations have not yet been studied. In this work, the power stroke structure of the head domain of myosin and the wild and mutated types of actin were modeled. Then, a MD simulation was run for the modeled structures to study the effects of these mutations on the structure, function, and molecular dynamics of actin. The wild and mutated actins docked with myosin showed differences in hydrogen bonding patterns, free binding energies, and hydrogen bond occupation frequencies. The G48D and G48C mutations significantly impacted the conformation of D-loops because of their larger size compared to Glycine and their ability to interfere with the polarity or hydrophobicity of this neutralized and hydrophobic loop. Therefore, the mutated loops were unable to fit properly into the hydrophobic groove of the adjacent G-actin. The abnormal structure of D-loops seems to result in the abnormal assembly of F-actins, giving rise to the symptoms of CFTD. It was also noted that G48C and G48D did not form hydrogen bonds with myosin in the residue 48 location. Nevertheless, in this case, muscles are unable to contract properly due to muscle atrophy. PMID- 29338612 TI - Gene Profiling of Nucleus Basalis Tau Containing Neurons in Chronic Traumatic Encephalopathy: A Chronic Effects of Neurotrauma Consortium Study. AB - Military personnel and athletes exposed to traumatic brain injury may develop chronic traumatic encephalopathy (CTE). Brain pathology in CTE includes intracellular accumulation of abnormally phosphorylated tau proteins (p-tau), the main constituent of neurofibrillary tangles (NFTs). Recently, we found that cholinergic basal forebrain (CBF) neurons within the nucleus basalis of Meynert (nbM), which provide the major cholinergic innervation to the cortex, display an increased number of NFTs across the pathological stages of CTE. However, molecular mechanisms underlying nbM neurodegeneration in the context of CTE pathology remain unknown. Here, we assessed the genetic signature of nbM neurons containing the p-tau pretangle maker pS422 from CTE subjects who came to autopsy and received a neuropathological CTE staging assessment (Stages II, III, and IV) using laser capture microdissection and custom-designed microarray analysis. Quantitative analysis revealed dysregulation of key genes in several gene ontology groups between CTE stages. Specifically, downregulation of the nicotinic cholinergic receptor subunit beta-2 gene (CHRNB2), monoaminergic enzymes catechol O-methyltransferase (COMT) and dopa decarboxylase (DDC), chloride channels CLCN4 and CLCN5, scaffolding protein caveolin 1 (CAV1), cortical development/cytoskeleton element lissencephaly 1 (LIS1), and intracellular signaling cascade member adenylate cyclase 3 (ADCY3) was observed in pS422 immunreactive nbM neurons in CTE patients. By contrast, upregulation of calpain 2 (CAPN2) and microtubule-associated protein 2 (MAP2) transcript levels was found in Stage IV CTE patients. These single-population data in vulnerable neurons indicate alterations in gene expression associated with neurotransmission, signal transduction, the cytoskeleton, cell survival/death signaling, and microtubule dynamics, suggesting novel molecular pathways to target for drug discovery in CTE. PMID- 29338615 TI - Assessment of Canine Mast Cell Tumor Mortality Risk Based on Clinical, Histologic, Immunohistochemical, and Molecular Features. AB - Mast cell tumor (MCT) is a frequent cutaneous neoplasm in dogs that is heterogeneous in clinical presentation and biological behavior, with a variable potential for recurrence and metastasis. Accurate prediction of clinical outcomes has been challenging. The study objective was to develop a system for classification of canine MCT according to the mortality risk based on individual assessment of clinical, histologic, immunohistochemical, and molecular features. The study included 149 dogs with a histologic diagnosis of cutaneous or subcutaneous MCT. By univariate analysis, MCT metastasis and related death was significantly associated with clinical stage ( P < .0001, rP = -0.610), history of tumor recurrence ( P < .0001, rP = -0.550), Patnaik ( P < .0001, rP = -0.380) and Kiupel grades ( P < .0001, rP = -0.500), predominant organization of neoplastic cells ( P < .0001, rP = -0.452), mitotic count ( P < .0001, rP = 0.325), Ki-67 labeling index ( P < .0001, rP = -0.414), KITr pattern ( P = .02, rP = 0.207), and c-KIT mutational status ( P < .0001, rP = -0.356). By multivariate analysis with Cox proportional hazard model, only 2 features were independent predictors of overall survival: an amendment of the World Health Organization clinical staging system (hazard ratio [95% CI]: 1.824 [1.210-4.481]; P = .01) and a history of tumor recurrence (hazard ratio [95% CI]: 9.250 [2.158 23.268]; P < .001]. From these results, we propose an amendment of the WHO staging system, a method of risk analysis, and a suggested approach to clinical and laboratory evaluation of dogs with cutaneous MCT. PMID- 29338616 TI - Systemic Loss of C-terminal Src Kinase Expression Elicits Spontaneous Suppurative Inflammation in Conditional Knockout Mice. AB - C-terminal Src kinase (Csk) is one of the critical negative regulators of the Src family of kinases. The Src family of kinases are nonreceptor tyrosine kinases that regulate inflammation, cell proliferation, motility, and adhesion. To investigate potential histologic lesions associated with systemic loss of Csk gene activity in adult mice, conditional Csk-knockout mice were examined. Cre mediated systemic excision of Csk induced by tamoxifen treatment resulted in multiorgan inflammation. Specifically, induction of Csk gene excision with three days of tamoxifen treatment resulted in greater than 90% gene excision. Strikingly, these mice developed enteritis that ranged from minimal and suppurative to severe, fibrinonecrosuppurative and hemorrhagic. Other inflammatory lesions included suppurative pneumonia, gastritis, and myocarditis, and increased numbers of inflammatory cells within the hepatic parenchyma. When tamoxifen treatment was reduced from three days to one day in an effort to lower the level of Csk gene excision and limit lesion development, the mice developed severe suppurative to pyogranulomatous pneumonia and minimal to mild suppurative enteritis. Lesions observed secondary to Csk gene excision suggest important roles for Csk in downregulating the proinflammatory activity of the Src family of kinases and limiting neutrophil-mediated inflammation. PMID- 29338617 TI - Carbon nanospheres mediated nuclear delivery of SMAR1 protein (DNA binding domain) controls breast tumor in mice model. AB - AIM: To investigate anticancer activity of the DNA binding domain of SMAR1 (His 5) in vitro and in vivo. MATERIALS & METHODS: His 5 was conjugated to hydrothermally synthesized carbon nanospheres (CNs). Anticancer activity of CNs His 5 was evaluated in vitro and in vivo. RESULTS: CNs- His 5 significantly reduced cyclin D1 levels in MDA-MB-231 cells. Tumor bearing Balb/c mice injected with CNs-His 5 showed approximately 62% tumor regression and significantly reduced 18FDG uptake. Caspases assay and IHC staining confirmed tumor growth inhibition, which could be attributed to apoptotic, antiproliferative and antiangiogenic activities of His 5. CONCLUSION: DNA binding domain of the SMAR1 protein (His 5) has potent anticancer activity and its CNs mediated delivery could control breast tumor in mice model. PMID- 29338618 TI - Presence of trauma and suicide risk: Personal control as a moderator. AB - Given past findings that have linked trauma and lack of personal control to greater suicidal risk in adults, the present study examined how trauma presence and personal control are uniquely involved in predicting suicidal risk in a sample of 469 college students. Regression analyses indicated that both trauma presence and personal control were significant predictors of suicidal risk, as was their interaction. The present findings suggest a need to consider both trauma presence and low personal control in assessing for suicidal risk in college students. PMID- 29338619 TI - Novel Phellodendri Cortex (Huang Bo)-derived carbon dots and their hemostatic effect. AB - AIM: To explore the hemostatic effect of Phellodendri Cortex-derived carbon dots. MATERIALS & METHODS: Transmission electron microscopy, high-resolution transmission electron microscopy, Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, fluorescence spectroscopy, x-ray photoelectron spectroscopy and a cell counting kit-8 assay were studied. Hemostatic effect of Phellodendri Cortex Carbonisatus-carbon dots (PCC-CDs) was studied in mouse bleeding models. To explore their related hemostatic mechanism, coagulation parameters and platelets were measured. RESULTS: The PCC-CDs ranged in diameter from 1.2 to 4.8 nm and had a quantum yield of 9.62%. They exhibited no toxicity up to concentrations of 1000 MUg/ml. After administration, mice had a significantly shortened bleeding time and coagulation parameters and platelets significantly increased. CONCLUSION: These results showed the definite hemostatic effect of PCC-CDs. PMID- 29338621 TI - Assessing the acute effects of CDP-choline on sensory gating in schizophrenia: A pilot study. AB - Deficient sensory gating (SG) in schizophrenia is associated with functional outcome and offers a therapeutic target as it is linked to the altered function/expression of the alpha7 nicotinic acetylcholine receptors (nAChRs). This study analyzed the effects of citicoline (CDP-choline), a supplement with alpha7 nAChRs agonist properties, on SG in a sample of schizophrenia (SZ) patients. Using a randomized, placebo-controlled, double-blind design the dose dependent (500 mg, 1000 mg, 2000 mg) and baseline-dependent (deficient versus normal suppressors) effects of CDP-choline on SG were examined using the P50 event-related potential (ERP) index of SG. Overall analysis failed to demonstrate treatment effects but CDP-choline improved SG (500 mg) in the deficient SZ subgroup by increasing suppression of the S2 P50 amplitude. These findings tentatively support alpha7 nAChR dysfunction in the expression of SG deficits and suggest further trials to assess the effects of sustained alpha7 nAChR activation on SG with low doses of CDP-choline. PMID- 29338622 TI - Grief and coping of parents whose child has a constant life-threatening disability, hypoplastic left heart syndrome with reference to the Dual-Process Model. AB - This paper reports on a study that examined the grief and coping of 29 parents whose child has hypoplastic left heart syndrome using the Dual Process Model. The study employed a secondary thematic analysis of interviews at key times of treatment and recovery for the child. After the diagnosis, parents experienced intense loss (LO), but focused upon restoration-orientated tasks (RO) to support their child. Over time, most parents employed a healthy oscillation between LO coping and RO coping, with waves of grief and with some grieving suppressed. There are some specific grief and coping and gender patterns employed by parents. PMID- 29338620 TI - Diminished Dentate Gyrus Filtering of Cortical Input Leads to Enhanced Area Ca3 Excitability after Mild Traumatic Brain Injury. AB - Mild traumatic brain injury (mTBI) disrupts hippocampal function and can lead to long-lasting episodic memory impairments. The encoding of episodic memories relies on spatial information processing within the hippocampus. As the primary entry point for spatial information into the hippocampus, the dentate gyrus is thought to function as a physiological gate, or filter, of afferent excitation before reaching downstream area Cornu Ammonis (CA3). Although injury has previously been shown to alter dentate gyrus network excitability, it is unknown whether mTBI affects dentate gyrus output to area CA3. In this study, we assessed hippocampal function, specifically the interaction between the dentate gyrus and CA3, using behavioral and electrophysiological techniques in ex vivo brain slices 1 week following mild lateral fluid percussion injury (LFPI). Behaviorally, LFPI mice were found to be impaired in an object-place recognition task, indicating that spatial information processing in the hippocampus is disrupted. Extracellular recordings and voltage-sensitive dye imaging demonstrated that perforant path activation leads to the aberrant spread of excitation from the dentate gyrus into area CA3 along the mossy fiber pathway. These results suggest that after mTBI, the dentate gyrus has a diminished capacity to regulate cortical input into the hippocampus, leading to increased CA3 network excitability. The loss of the dentate filtering efficacy reveals a potential mechanism by which hippocampal-dependent spatial information processing is disrupted, and may contribute to memory dysfunction after mTBI. PMID- 29338623 TI - Diabetic Peripheral Neuropathic Pain From the Perspective of Turkish Patients: A Qualitative Study. AB - INTRODUCTION: Diabetic peripheral neuropathy (DPN) affects almost 30% to 50% of patients with diabetes, 40% to 60% of whom suffer from diabetic peripheral neuropathic pain (DPNP). Few studies have focused on individual experiences of DPNP in patients with diabetes. The purpose of this qualitative study was to elucidate the effects of DPNP on daily life and individual feelings regarding living with DPNP from the perspective of Turkish patients. METHOD: A total of 14 patients were interviewed, and interpretative phenomenological analysis was used to identify themes. RESULTS: Findings indicated four main themes, including (a) physical limitations, (b) difficulties with daily routines, (c) social limitations, and (d) psychological impacts such as emotional changes, and being a burden on family. CONCLUSION: This study revealed that the majority of patients carry significant concerns about becoming a burden on their family and are afraid of becoming dependent on others because of DPNP. IMPLICATION FOR PRACTICE: For the effective management of DPNP, health professionals need to consider using a holistic approach to address difficulties in daily living such as physical limitations and sexual problems. PMID- 29338624 TI - Use of Service Learning to Increase Master's-Level Nursing Students' Understanding of Social Determinants of Health and Health Disparities. AB - INTRODUCTION: It is important for graduate-level nursing students to be competent in the issues involved in the social determinants of health and health disparities and have the tools to address them as graduates. METHOD: As part of a nursing workforce diversity program, master's-level nursing students were required to participate in a service learning project exposing them to an issue not directly linked to health-long bus rides for students as a result of school consolidations-to achieve educational goals and objectives while providing a service to an advocacy agency. RESULTS: Eighteen students completed the project, providing the advocacy agency with firsthand accounts about the impact of long bus rides and in-depth reviews of literature on the topic and laws and regulations of other states. CONCLUSION: These results further support providing nursing students opportunities to fully engage with multicultural communities to gain a broader understanding of health disparities and social determinants of health. PMID- 29338626 TI - Fitts' Law is Applicable to Trunk Coordination Measurements in a Sitting Position. AB - Trunk coordination is essential for many activities of daily living in wheelchair users. This study investigated whether Fitts' law is applicable to trunk movements in a sitting position. Fourteen healthy adults performed two series of 24 tasks of trunk flexion-extension movements in a sitting position. The results showed significant linear relationships between average group movement time (MT) and index of difficulty (ID) over all tasks (r2 = 0.92) and within target distances (0.94 < r2 < 1.00). Target distance affected intercept and slope (P < 0.001). Hence, Fitts' law is applicable to the studied trunk movements in a sitting position, indicating these trunk movements tasks could serve as a basis for qualitative trunk coordination tests. Transferability of these conclusions to wheelchair users, and optimal test design should be further investigated. PMID- 29338625 TI - Delivery of chemotherapeutics using spheres made of bioengineered spider silks derived from MaSp1 and MaSp2 proteins. AB - AIM: Analysis of the properties and chemotherapeutics delivery potential of spheres made of bioengineered spider silks MS1 and MS2. MATERIALS & METHODS: MS1 and MS2 derived from Nephila clavipes dragline silks - MaSp1 and MaSp2, respectively - formed spheres that were compared in terms of physicochemical properties, cytotoxicity and loading/release of chemotherapeutics. RESULTS: MS2 spheres were more dispersed, smaller, of solid core, of higher beta-sheet structure content, and of opposite (negative) charge than MS1 spheres. Preloaded MS2 showed greater applicability for mitoxantrone, while postloaded for etoposide delivery compared with MS1 spheres. However, MS1 spheres were a better choice for doxorubicin delivery than MS2. CONCLUSION: Bioengineered silks can be tailored to develop a system with optimal drug loading and release properties. PMID- 29338627 TI - ? PMID- 29338628 TI - ? PMID- 29338629 TI - [CME Answers: "Lumbar Spinal Canal Stenosis" from PRAXIS No. 01]. PMID- 29338630 TI - [CME: Post-Cardiac Injury Syndrome - a Special Form of Acute Pericarditis.] PMID- 29338631 TI - ? PMID- 29338632 TI - ? PMID- 29338633 TI - ? PMID- 29338634 TI - ? PMID- 29338635 TI - ? PMID- 29338636 TI - ? PMID- 29338637 TI - Selected plant essential oils and their main active components, a promising approach to inhibit aflatoxigenic fungi and aflatoxin production in food. AB - Recent research has showed that Aspergillus flavus and Aspergillus parasiticus are aflatoxigenic species that can become very competitive in the framework of climate change. Aflatoxins show carcinogenic, mutagenic, immunotoxic and teratogenic effects on human and animals. Effective and sustainable measures to inhibit these species and aflatoxins in food are required. Origanum vulgare and Cinnamomum zeylanicum essential oils (EOs) and their major active constituents, carvacrol and cinnamaldehyde, respectively, were assayed for inhibiting these species and aflatoxin production in maize extract medium under different environmental conditions. Doses of 10-1000 mg l-1 were assayed and the effective doses for 50 (ED50) and 90% (ED90) growth inhibition were determined. The ED50 of cinnamaldehyde, carvacrol, oregano EO, and cinnamon EO against A. flavus were in the ranges 49-52.6, 98-145, 152-505, 295-560 mg l-1 and against A. parasiticus in the ranges 46-55.5, 101-175, 260-425 and 490-675 mg l-1, respectively, depending on environmental conditions. In A. flavus treatments ED90 were in the ranges 89.7 90.5, 770-860 and 820->1000 mg l-1 for cinnamaldehyde, carvacrol and cinnamon EO, and in A. parasiticus treatments in the ranges 89-91, 855->1000 and 900->1000 mg l-1, respectively. ED90 values for oregano EO against both species were >1000 mg l-1. Growth rates of both species were higher at 37 than at 25 degrees C and at 0.99 than at 0.96 aw. Aflatoxin production was higher at 25 than at 37 degrees C. Stimulation of aflatoxin production was observed at low doses except for cinnamaldehyde treatments. The effectiveness of EOs and their main constituents to inhibit fungal growth and aflatoxin production in contact assays was lower than in vapour phase assays using bioactive EVOH-EO films previously reported. PMID- 29338638 TI - Frequency-dependence of discomfort caused by vibration and mechanical shocks. AB - The frequency content of a mechanical shock is not confined to its fundamental frequency, so it was hypothesised that the frequency-dependence of discomfort caused by shocks with defined fundamental frequencies will differ from the frequency-dependence of sinusoidal vibration. Subjects experienced vertical vibration and vertical shocks with fundamental frequencies from 0.5 to 16 Hz and magnitudes from +/-0.7 to +/-9.5 ms-2. The rate of growth of discomfort with increasing magnitude of motion decreased with increasing frequency of both motions, so the frequency-dependence of discomfort varied with the magnitudes of both motions and no single frequency weighting will be ideal for all magnitudes. At the frequencies of sinusoidal vibration producing greatest discomfort (4-16 Hz), shocks produced less discomfort than vibration with same peak acceleration or unweighted vibration dose value. Frequency-weighted vibration dose values provided the best predictions of the discomfort caused by different frequencies and magnitudes of vibration and shock. Practitioner Summary: Human responses to vibration and shock vary according to the frequency content of the motion. The ideal frequency weighting depends on the magnitude of the motion. Standardised frequency-weighted vibration dose values estimate discomfort caused by vibration and shock but for motions containing very low frequencies the filtering is not optimum. PMID- 29338639 TI - Is Continuous Passive Motion Effective in Patients with Lymphedema? A Randomized Controlled Trial. AB - BACKGROUND: In this randomized controlled study, we aimed to evaluate the effect of shoulder flexion exercise using continuous passive motion (CPM) on lymphedema during the treatment of breast cancer-related lymphedema (BCRL). METHODS: Thirty patients with BCRL were enrolled and completed the study. Fourteen patients were treated with complete decongestive therapy (CDT) and CPM in the intervention group, and 16 patients were treated with CDT alone (control group) for 15 sessions. The main outcome measures were included; the shoulder range of motion (ROM) assessed with a goniometer, limb volume difference measured using the water immersion method, function with the Disabilities of the Arm, Shoulder and Hand (DASH), and the quality of life using the Functional Assessment of Cancer Therapy for Breast Cancer (FACT-B4). Lymphedema volume measures were taken at baseline, on days 1, 2, 3, 4, 5, 10, and 15; and shoulder ROM, FACT-B4, and DASH were taken at baseline and on day 15. RESULTS: All subjects were similar at baseline. After treatment significant improvement was found in ROM, volumetric differences, DASH, and FACT-B4 scores in both groups. No significant differences were observed in the volumetric differences, ROM, and the DASH, and FACT-B4 scores between the groups, except for the FACT-B4 physical well-being subscores, which were better in intervention group. CONCLUSION: Our study results showed that CPM did not contribute to the reduction of BCRL. PMID- 29338640 TI - New molecular features of cowpea bean (Vigna unguiculata, l. Walp) beta-vignin. AB - Cowpea seed beta-vignin, a vicilin-like globulin, proved to exert various health favourable effects, including blood cholesterol reduction in animal models. The need of a simple scalable enrichment procedure for further studies for tailored applications of this seed protein is crucial. A chromatography-independent fractionation method allowing to obtain a protein preparation with a high degree of homogeneity was used. Further purification was pursued to deep the molecular characterisation of beta-vignin. The results showed: (i) differing glycosylation patterns of the two constituent polypeptides, in agreement with amino acid sequence features; (ii) the seed accumulation of a gene product never identified before; (iii) metal binding capacity of native protein, a property observed only in few other legume seed vicilins. PMID- 29338641 TI - An assessment of the level of awareness and reported complaints regarding occupational health hazards and the utilization of personal protective equipments among the welders of Lahore, Pakistan. AB - Objective To assess the level of awareness and reported complaints of occupational health hazards among the welders of Lahore. Methods A cross sectional descriptive study of 70 welders. An interview questionnaire was employed to assess awareness and complaints, the possession and utilization of protective personal equipment (PPE), and socio-demographic characteristics. Results All of the respondents were male with a mean age of 25.7 years. 54.3% of the respondents were aware of welding as a risk to their health. 98.6% possessed at least 1 PPE. There was an association between the level of education and the awareness of a health risk (chi2 = 6.885; p = 0.032). The most frequent complaint was foreign body in the eye (47.1%) followed by arc eye injury (45.7%), cuts and injuries (50.0%), and burns (48.6%). Conclusion The findings suggest that welders had low level of awareness and reported many complaints of occupational health hazards. Preventive initiatives are recommended. PMID- 29338642 TI - Functional evolution of biosynthetic enzymes that produce plant volatiles. AB - Plants synthesize volatile compounds to attract pollinators. The volatiles emitted by flowers are often complex mixtures of organic compounds; pollinators are capable of distinctly recognizing different volatile compounds. Plants also produce volatile compounds to protect themselves against herbivores and pathogens. Some of the volatile compounds produced in floral and vegetative tissues are toxic to insects and microbes. To adapt changes in the environment, plants have evolved the ability to synthesize a unique set of volatiles. Intensive studies have identified and characterized the enzymes responsible for the formation of plant volatiles. In particular, many biosynthetic genes have been isolated and their enzymatic functions have been proposed. This review describes how plants have evolved the biosynthetic pathways leading to the formation of green leaf volatiles and phenylpropene volatiles. PMID- 29338643 TI - High School Coaches' Experiences With Openly Lesbian, Gay, and Bisexual Athletes. AB - Despite reports that there has been a positive trend in perception and treatment of lesbian, gay, and bisexual (LGB) individuals in recent years (Griffin, 2012 ; Loftus, 2001 ), sport, in general, is still an uncertain, and sometimes even hostile, environment for LGB athletes (Anderson, 2005 ; Waldron & Krane, 2005 ). To gain more information on coach understanding and perceptions of the team environment, 10 high school head coaches in the United States were interviewed to explore their experiences coaching openly LGB athletes. Qualitative analyses revealed four primary themes associated with coach experiences: team environment dogmas and observations, fundamental beliefs contributing to perceptions of LGB athletes, types and timing of sexual orientation disclosure, and differential LGB athlete characteristics. Future research should examine these primary themes in more detail through interviews with LGB athletes, as well as high school coaches in more traditionally masculine sports, such as football, men's basketball, and wrestling. PMID- 29338644 TI - Pulmonary mucoepidermoid carcinoma: diagnosis and treatment. AB - INTRODUCTION: Primary mucoepidermoid carcinomas (MEC) of the lung are rare and represent a diagnostic challenge. MEC in the lung is under the umbrella of primary salivary gland type tumors of the lung. Areas covered: In general, salivary gland type tumors are represented by malignant neoplasms that may range from low to intermediate to high-grade type of malignancy sharing similar histopathological features as those in salivary glands. The focus in this review will be on one tumor in particular - mucoepidermoid carcinoma. Clinical, radiological, histopathological, and molecular diagnostic features will be highlighted in order to provide an insight on this unusual tumor in the lung. In addition, the treatment of these tumors will be discussed. Expert commentary: It is important to stress that in the majority of cases, the proper use of histopathological assessment is the most important step in arriving at an accurate diagnosis. It is also important to recognized that there are other unusual primary tumoral conditions of the lung, which may pose a significant challenge in the differential diagnosis. The importance of proper recognition of mucoepidermoid carcinoma and its grading will be highlighted in order to assess clinical outcome. PMID- 29338645 TI - Remote Iliac Artery Endarterectomy: A Case Series and Systematic Review. AB - PURPOSE: To evaluate the long-term results of remote iliac artery endarterectomy (RIAE) in 2 vascular referral centers and review existing literature. METHODS: A retrospective analysis was conducted of 109 consecutive patients (mean age 64.2+/ 10.7 years; 72 men) who underwent 113 RIAE procedures for lower limb ischemia from January 2004 to August 2015 at 2 vascular centers. The majority of limbs (82, 72.6%) had TASC II D lesions (31 TASC II C). Primary outcome measures were primary, assisted primary, and secondary patency. A comprehensive literature search was performed in the PubMed and EMBASE databases to identify all English language studies published after 1990 reporting the results of RIAE. RESULTS: Technical success was achieved in 95 (84.1%) of the 113 procedures. The complication rate was 13.7%, and 30-day mortality was 0%. At 5 years, primary patency was 78.2%, assisted primary patency was 83.4%, and secondary patency was 86.7%. Hemodynamic success was obtained in 91.7% of patients, and clinical improvement was observed in 95.2%. Freedom from major amputation was 94.7% at 5 years. The systematic review comprised 6 studies including 419 RIAEs, and pooled data showed results similar to the current study. CONCLUSION: For external iliac artery occlusions extending into the common femoral artery, RIAE appears to be a valuable hybrid treatment option. It combines acceptable morbidity and low mortality with good long-term patency. It has some advantages over an open surgical iliofemoral bypass or complete endovascular revascularization and could be the best treatment option in selected cases. PMID- 29338646 TI - Cognitive determinants of cervical cancer screening behavior among housewife women in Iran: An application of Health Belief Model. AB - Our aim in this cross-sectional study was to assess the cognitive determinants of Cervical Cancer Screening Behavior (CCSB) among housewife women in Islamabad County, Iran. Through multistage random sampling we recruited and interviewed 280 housewife women. The women who perceived more benefits of performing the Pap test (OR = 1.11), and perceived fewer barriers (OR = 0.915), and higher self-efficacy to perform the test (OR = 1.12) were more likely to have a CCSB in the previous three years. Our findings are informative for the development of targeted interventions to foster CCSB among housewife women. PMID- 29338650 TI - Stoicism and Alchemy in Late Antiquity: Zosimus and the Concept of Pneuma. AB - At the beginning of the twentieth century, historians associated the alchemy of the third-century alchemist Zosimus of Panopolis with Platonism and Aristotelianism, explicating his theory of alchemical transmutation under the intellectual umbrella of these philosophical traditions. More recently, scholars of alchemy such as Christina Viano and William Newman have suggested a connection between Zosimean alchemy and Stoicism. Through a close reading of texts in Zosimus's corpus, this paper posits a Stoic interpretation of several aspects of Zosimean alchemy, focusing on the concepts of pneuma and tension. For Zosimus, I argue, pneuma played a vital role in colouring metals, while tension conferred stability and cohesion upon metallic compounds. This interpretation suggests that Zosimus applied Stoic concepts to describe the alchemical process of tincturing metals. PMID- 29338653 TI - A New Alchemical Poem Attributed to Khalid b. Yazid (d. ca. 705). AB - This paper deals primarily with the identification of an inaccurately catalogued alchemical poem attributed to the famous Umayyad prince Khalid b. Yazid (d. 705), edited, translated, and commented upon here for the first time. The paper also addresses the authenticity of Khalid's interest in alchemy and connects that interest to the need of the early Islamic empire to develop its own gold coinage as a sign of political independence from Byzantine coinage that was up till then the currency of the lands occupied by early Muslims in the regions of modern-day Egypt and Syria. On the matter of the legendry character of Khalid which was apparently started by Ibn Khaldun and passed on after him to most nineteenth century and early twentieth-century orientalists, the paper exposes here the inner contradictions in Ibn Khaldun's theorising on the matter, and his failure to understand why someone like the historical Prince Khalid would be interested in alchemy. PMID- 29338655 TI - The Alchemical Manuscripts of David Lindsay (1587-1641), Lord Lindsay of Balcarres. AB - The private book collection of David Lindsay, First Lord Lindsay of Balcarres (1587-1641), was one of the largest in early modern Scotland. Despite being dispersed during the following three centuries, this collection still provides evidence for Lindsay's scientific interests and approach to the study of alchemy. In this paper we seek to partially reconstruct his library by describing and, where possible, identifying the sources of Lindsay's own transcriptions of alchemical texts, as well as works mentioned in a book-list written in his hand. We conclude that Lindsay was not just an important early modern collector, but also a careful reader, part of an extensive network of contacts with whom he exchanged books and information. PMID- 29338658 TI - The Chemical Club: An Early Nineteenth-Century Scientific Dining Club. AB - The Chemical Club (fl. 1806-1828) was a small scientific dining club in London. Among its members were Sir Humphry Davy, William Hyde Wollaston, and Alexander Marcet. Other accomplished men of science, including John Dalton, Jons Jacob Berzelius, and Augustin Pyramus de Candolle, also attended its meetings as guests. This article, drawing on the unpublished papers of Lionel Felix Gilbert, as well as a range of contemporary sources in print and manuscript, presents the first substantial history of the Chemical Club, and situates it in the context of the scientific and social networks of the period. It aims to enrich our understanding of the scientific culture of the early nineteenth century in Britain by tracing the Club's influence on, or connection to, some of the most pioneering and transformative scientific work of the first quarter of the 1800s, such as the discovery of nitrogen trichloride, the invention of the miners' safety lamp, and Hans Christian Orsted's work on electromagnetism. PMID- 29338659 TI - Enfranchising grief following suicide: A case study of an Israeli social organization. AB - Researchers have yet to explore suicide survivors activities in social organizations, which was the present purpose. I studied an Israeli organization, Path to Life, by interviewing 16 members, attending 11 events, and examining media, online, and print information. Although mainly comprised of activists whose loss occurred in civilian circumstances, frame analysis revealed that the organization emphasizes connections between suicide and esteemed military-related death. By relying on a legitimate model of dealing with death, the activists provided meaning to suicide and promoted a sociocultural change through drawing attention to a silenced death, upgrading the suicide victims' status, and enfranchising survivors' grief. PMID- 29338661 TI - Collaborative Processes of Developing A Health Literacy Toolkit: A Case from Fukushima after the Nuclear Accident. AB - Following the Fukushima nuclear accident in 2011, the central government provided health and radiation-related information that was incomplete, difficult to understand and contradictory, leading to widespread distrust in the community. Thus, from 2013 to 2014, we developed and implemented a series of health literacy training workshops for local public health nurses, often the first health care professionals with whom members of the community interact. The results from our program evaluation revealed that the task of paraphrasing professional terms and skills related to relaying numeric information to the community were difficult for the nurses to acquire. In 2016, to further support the communication efforts of public health nurses, we developed a pocket-size "health literacy toolkit" that contained a glossary explaining radiation-related terms in plain language and an index to measure the accessibility of both text and numerical information, so that nurses could calibrate and appreciate the literacy demand of information. This case study documents an interprofessional collaborative effort for the development of the toolkit, and highlights the iterative process of building health literacy skills in health care professionals. PMID- 29338660 TI - Social-ecological factors associated with selling sex among men who have sex with men in Jamaica: results from a cross-sectional tablet-based survey. AB - BACKGROUND: Globally, men who have sex with men (MSM) experience social marginalization and criminalization that increase HIV vulnerability by constraining access to HIV prevention and care. People who sell sex also experience criminalization, rights violations, and violence, which elevate HIV exposure. MSM who sell sex may experience intersectional stigma and intensified social marginalization, yet have largely been overlooked in epidemiological and social HIV research. In Jamaica, where same sex practices and sex work are criminalized, scant research has investigated sex selling among MSM, including associations with HIV vulnerability. OBJECTIVE: We aimed to examine social ecological factors associated with selling sex among MSM in Jamaica, including exchanging sex for money, shelter, food, transportation, or drugs/alcohol (past 12 months). METHODS: We conducted a cross-sectional survey with a peer-driven sample of MSM in Kingston, Ocho Rios, and Montego Bay. Multivariable logistic regression analyses were conducted to estimate intrapersonal/individual, interpersonal/social, and structural factors associated with selling sex. RESULTS: Among 556 MSM, one-third (n = 182; 32.7%) reported selling sex. In the final multivariable model, correlates of selling sex included: individual/intrapersonal (lower safer sex self-efficacy [AOR: 0.85, 95% CI: 0.77, 0.94]), interpersonal/social (concurrent partnerships [AOR: 5.52, 95% CI: 1.56, 19.53], a higher need for social support [AOR: 1.08, 95% CI: 1.03, 1.12], lifetime forced sex [AOR: 2.74, 95% 1.65, 4.55]) and structural-level factors (sexual stigma [AOR: 1.09, 95% CI: 1.04, 1.15], food insecurity [AOR: 2.38, 95% CI: 1.41, 4.02], housing insecurity [AOR: 1.94, 95% CI: 1.16, 3.26], no regular healthcare provider [AOR: 2.72, 95% CI: 1.60, 4.64]). CONCLUSIONS: This study highlights social ecological correlates of selling sex among MSM in Jamaica, in particular elevated stigma and economic insecurity. Findings suggest that MSM in Jamaica who sell sex experience intensified social and structural HIV vulnerabilities that should be addressed in multi-level interventions to promote health and human rights. PMID- 29338662 TI - Legal barriers to access abortion services through a human rights lens: the Uruguayan experience. AB - Sexual and reproductive health (SRH) has increasingly gained importance in the field of international human rights law. The work of the United Nations (UN) bodies, in particular the recently adopted General Comment 22 (GC 22), has been instrumental in signalling the importance of the SRH legal framework and in setting clear guidelines to steer countries into enacting/modifying/repealing national laws in order to comply with their international obligations vis-a-vis SRH. Although within the region Uruguay is regarded as a pioneer in terms of women's status and rights, including sexual and reproductive health and rights, evidence points to a number of challenges. This article explores the extent to which the Uruguayan abortion law complies with the country's international human rights obligations as conceptualised by GC 22. It uses the Uruguayan abortion law, its regulatory decree, and the highest administrative court's decision in Alonso et al v. Poder Ejecutivo as the main pivots for the discussion. The results reveal that - in spite of the praise it receives at the international level and the adoption of a less restrictive abortion law - Uruguay has fallen short in adopting a legal framework that complies with the international standards and guarantees effective access to abortion services. PMID- 29338663 TI - Cultural Competency in Dementia Care: An African American Case Study. AB - Age is the greatest risk factor for Alzheimer's disease, the most common cause of dementia. The older population in the United States is growing, and within this demographic ethnic and racial diversity is also on the rise. This article introduces Stanford Health Care's Memory Support Program (MSP) as a model for culturally competent dementia care that spans inpatient and outpatient settings. The case study of an African American patient and family dealing with an Alzheimer's disease diagnosis and comorbid conditions is presented and explored to illustrate the MSP model. The authors make recommendations for the implementation of similar continuum of care services in other institutions. As research continues to show, the cultural competence of medical professionals can impact patient quality of care and health outcomes. More research is needed to appropriately support positive outcomes for patients and families of diverse ethnic and racial backgrounds. PMID- 29338664 TI - Qualitative analysis and conceptual mapping of patient experiences in home health care. AB - This study explored patient experiences in home health care through a literature review, focus groups, and interviews. Our goal was to develop a conceptual map of home health care patient experience domains. The conceptual map identifies technical and personal spheres of care, relating prior studies to new focus group and interview findings and identifying the most important domains of care. Study participants (n = 35) most frequently reported the most important domain as staff who are caring, supportive, patient, empathetic, respectful, and considerate (endorsed by 29% of participants). The conceptual map includes 114 discrete domains. PMID- 29338665 TI - Adjuvant radiotherapy in patients with diffuse large B-cell lymphoma in advanced stage (III/IV) improves the outcome in the rituximab era. AB - OBJECTIVES: To assess the efficacy and toxicity of adjuvant radiotherapy (RT) in patients with diffuse large B-cell lymphoma (DLBCL) and nodal bulky disease, on complete response, after six cycles of RCHOP (rituximab, cyclophosphamide, doxorubicin, vincristine and prednisone), we began an open-label clinical trial in a large cohort with longer follow-up to evaluate the outcome measured from progression-free survival (PFS) and overall survival (OS). PATIENTS AND METHODS: Between 2006 and 2010, 258 consecutive patients with DLBCL and nodal bulky disease (tumor mass >10 cm) were randomly assigned to receive either RT (involved field, 30 Gy) (127 patients) or no (control group) (131 patients). RESULTS: The actuarial curves at 5 years of PFS were 87% (95% confidence interval (CI): 72 97%) in the RT group, which was significantly different from the control group value of 45% (95% CI: 34-60%) (p < 0.001); also OS in the RT group was significantly better than that in the control group: 91% (95% CI: 84-99%) and 59% (95% CI: 52-66%), respectively (p < 0.001). RT was well tolerated, acute toxicity was mild and until now late toxicity did not appear. CONCLUSIONS: The use of adjuvant RT in patients with DLBCL and nodal bulky disease improves the outcome with PFS and OS, with minimal toxicity; thus, we felt that adjuvant RT will be considered as a part of the initial treatment in this setting of patients, even in the rituximab era. PMID- 29338667 TI - Docosahexaenoic acid prevents resistance to antiepileptic drugs in two animal models of drug-resistant epilepsy. AB - OBJECTIVES: One-third of epileptic patients are resistant to antiepileptic drugs. Few clinical studies with small sample size indicate that polyunsaturated fatty acids could control drug-resistant epilepsy. We examined the efficacy of acute and chronic administration of docosahexaenoic acid (DHA) in two animal models of drug-resistant epilepsies, i.e. 6-Hz psychomotor seizures in mice and lamotrigine (LTG)-resistant kindled rats. METHODS: Mice received a single injection of DHA (300 uM, i.c.v.) along with phenytoin (PHT) or LTG (i.p.). Six-Hz electroshock (0.2 milliseconds rectangular pulse width, 3 seconds duration, 44 mA current) was given 15 minutes after DHA, and seizure behaviors were recorded. In LTG-resistant kindled rats, a single dose of DHA (300 uM, i.c.v.) was administered with LTG, and seizure parameters were measured. In chronic treatment, mice received DHA (0.1 g/day, orally) for 30 days. Then, a single dose of LTG or PHT was administered to mice and 6-Hz-induced seizures were recorded. In rats, DHA (1 uM, i.c.v.) was administered during kindling development and effect of LTG in DHA pretreated LTG-resistant kindled rats was verified. RESULTS: LTG and PHT did not inhibit 6-Hz seizures in mice after single injection of DHA. However, LTG and PHT inhibited 6-Hz seizures in mice that received DHA for 1 month. Acute or chronic administration of DHA to LTG-resistant kindled rats led to the suppression of kindled seizure parameters by LTG. DISCUSSION: DHA removes the 'inherent resistance' of 6-Hz seizures to PHT and LTG, and prevents the development of pharmacodynamic tolerance to LTG in LTG-resistant kindled rats. DHA might have potential to be used as add-on therapy in patients with refractory epilepsy. PMID- 29338666 TI - Boosted TCA cycle enhances survival of zebrafish to Vibrio alginolyticus infection. AB - Vibrio alginolyticus is a waterborne pathogen that infects a wide variety of hosts including fish and human, and the outbreak of this pathogen can cause a huge economic loss in aquaculture. Thus, enhancing host's capability to survive from V. alginolyticus infection is key to fighting infection and this remains still unexplored. In the present study, we established a V. alginolyticus zebrafish interaction model by which we explored how zebrafish survived from V. alginolyticus infection. We used GC-MS based metabolomic approaches to characterize differential metabolomes between survival and dying zebrafish upon infection. Pattern recognition analysis identified the TCA cycle as the most impacted pathway. The metabolites in the TCA cycle were decreased in the dying host, whereas the metabolites were increased in the survival host. Furthermore, the enzymatic activities of the TCA cycle including pyruvate dehydrogenase (PDH), alpha-ketoglutaric dehydrogenase (KGDH) and succinate dehydrogenase (SDH) also supported this conclusion. Among the increased metabolites in the TCA cycle, malic acid was the most crucial biomarker for fish survival. Indeed, exogenous malate promoted zebrafish survival in a dose-dependent manner. The corresponding activities of KGDH and SDH were also increased. These results indicate that the TCA cycle is a key pathway responsible for the survival or death in response to infection caused by V. alginolyticus, and highlight the way on development of metabolic modulation to control the infection. PMID- 29338668 TI - Simultaneous determination of afidopyropen and its metabolite in vegetables, fruit and soil using UHPLC-MS/MS. AB - A new analytical method using the quick, easy, cheap, effective, rugged and safe (QuEChERS) procedure for simultaneous determination of afidopyropen and its metabolite M440I007 residues in tomato, watermelon, pepper, cucumber, pear, grape, cabbage and soil samples was developed using ultra-high performance liquid chromatography coupled with tandem mass spectrometry. The target compound was determined in less than 5.0 min using an electrospray ionisation source in positive mode (ESI+). The limit of quantification was 1 MUg kg-1 in different matrices. Two sorbents primary secondary amine and graphitised carbon black were used in the QuEChERS procedure, and matrix-matched standards gave satisfactory recoveries and relative standard deviation (RSD) values in different matrices at three spiked levels (1, 10 and 500 MUg kg-1). For afidopyropen, the recoveries ranged from 83% to 104% with an intra-day relative standard deviation (RSDr) of 1 8%, while they were from 80% to 103% with RSDr of 2-8% for M440I007. Reproducibility ranged between 1% and 19% for the three spiked levels. PMID- 29338669 TI - Successful operative treatment of uterine leiomyoma with extensive intravenous extension to the IVC, right heart, and pulmonary arteries. AB - INTRODUCTION: Intravenous extension of benign uterine leiomyomata ('fibroids'), in the absence of discrete metastatic disease has rarely been reported. 'Fibroids' remain one of the most common premenopausal uterine pathologies. METHODS AND RESULTS: We report the diagnosis and multidisciplinary led operative management of a 52-year-old woman with a histologically benign, but biologically aggressive, uterine leiomyoma with intravenous extension to the inferior vena cava (IVC), right heart and pulmonary arteries. CONCLUSIONS: Total abdominal hysterectomy and bilateral salpingo-oophorectomy combined with exploration of the sub-hepatic IVC and heart under deep hypothermic circulatory arrest achieved its successful macroscopic clearance. PMID- 29338670 TI - Vitamin A and vitamin D deficiencies exacerbate symptoms in children with autism spectrum disorders. AB - OBJECTIVES: This study was designed to investigate the vitamin A (VA) and vitamin D (VD) levels in children with autism spectrum disorders (ASD) and to determine whether co-deficiency of VA and VD exacerbates clinical symptoms in autistic children. METHODS: The Autism Behavior Checklist, Childhood Autism Rating Scale (CARS), and Social Responsiveness Scale (SRS) were used to assess the symptoms of 332 children diagnosed as ASD. And the Gesell Developmental Scale (GDS) was used to evaluate neurodevelopment in children with ASD. Anthropometric measurement and questionnaire results were compared for all autistic children and 197 age- and gender-matched control children. Serum retinol levels were detected with high performance liquid chromatography, and serum levels of 25-OH vitamin D were measured with an immunoassay method in the two groups. RESULTS: The ZHA, ZWA, and ZBMIA of the children with ASD were significantly lower than those of the control children. Furthermore, higher proportions of children with picky eating, resistance to new foods, and eating problems were observed in the ASD group when compared with the control group. Serum retinol and 25-OH vitamin D levels in autistic children were significantly lower than those in the control children. Additionally, VA and VD co-deficiency impacts more on the symptoms and development in autistic children. CONCLUSIONS: We found that children with autism have more VA and VD deficiencies than control children, and VA and VD co deficiency may exacerbate the symptoms of children with ASD. PMID- 29338671 TI - Journal of Correctional Health Care. PMID- 29338673 TI - Editor's Letter. PMID- 29338674 TI - Would you be willing to zap your child's brain? Public perspectives on parental responsibilities and the ethics of enhancing children with transcranial direct current stimulation. AB - BACKGROUND: Transcranial direct current stimulation (tDCS) is an experimental brain stimulation technology that may one day be used to enhance the cognitive capacities of children. Discussion about the ethical issues that this would raise has rarely moved beyond expert circles. However, the opinions of the wider public can lead to more democratic policy decisions and broaden academic discussion of this issue. METHODS: We performed a quantitative survey of members of the U.S. public. A between-subjects design was employed, where conditions varied based on the trait respondents considered for enhancement. RESULTS: There were 227 responses included for analysis. Our key finding was that the majority were unwilling to enhance their child with tDCS. Respondents were most reluctant to enhance traits considered fundamental to the self (such as motivation and empathy). However, many respondents may give in to implicit coercion to enhance their child in spite of an initial reluctance. A ban on tDCS was not supported if it were to be used safely for the enhancement of mood or mathematical ability. Opposition to such a ban may be related to the belief that tDCS use would not represent cheating or violate authenticity (as it relates to achievements rather than identity). CONCLUSIONS: The wider public appears to think that crossing the line from treatment to enhancement with tDCS would not be in a child's best interests. However, an important alternative interpretation of our results is that lay people may be willing to use enhancers that matched their preference for "natural" enhancers. A ban on the safe use of tDCS for enhancing nonfundamental traits would be unlikely to garner public support. Nonetheless, it could become important to regulate tDCS in order to prevent misuse on children, because individuals reluctant to enhance may be likely to give in to implicit coercion to enhance their child. PMID- 29338675 TI - Exploration into best practices in peer support for bereaved survivors. AB - This exploratory, qualitative study addresses the question: what are the important elements in effective peer support programs for bereaved survivors? Interviews with 10 highly experienced experts were analyzed to identify recurrent themes and elements. Findings indicate that effective peer support programs for the bereaved should be: easily accessible; confidential; provide a safe environment; use peer supporters with similar shared experiences to clients; select peer supporters carefully; partner with professional mental health providers; train peer supporters thoroughly; and provide care and monitoring for peer supporters. These results can help inform efforts to improve peer support programs for bereaved survivors. PMID- 29338676 TI - Finding the perfect sclerosant - Is it possible? PMID- 29338677 TI - Vitamin B-6 and depressive symptomatology, over time, in older Latino adults. AB - BACKGROUND: Low vitamin B-6 status has been linked to depressive symptomatology. We examined the longitudinal association of vitamin B-6 status with depressive symptomatology across 3-time points over ~5-7 years in a cohort of older Hispanic adults. METHODS: We used two-level hierarchical linear regression models for continuous outcomes. Vitamin B-6 status was associated with depressive symptomatology across these time points. RESULTS: Plasma pyridoxyl-5-phosphate (PLP) concentration, a time-varying predictor, was significantly associated with depressive symptomatology. Study participants with PLP deficiency, vs. optimal PLP, had higher baseline depressive symptoms (Center for Epidemiologic Studies Depression Scale (CES-D) score of 22 +/- 14, vs. 20 +/- 13); this differential remained constant over time and persisted after controlling for age, sex, education, body mass index, smoking and alcohol use, other relevant nutritional factors, perceived stress, stressful life events, allostatic load, and use of antidepressant medication. However, PLP concentration was not associated with the rate of change in depressive symptomatology over time. CONCLUSIONS: Suboptimal plasma PLP is associated with higher depressive symptomatology in older Hispanic of Puerto Rican descent and this appears to persist over time. Our data suggest that identification and treatment of vitamin B-6 deficiency may be a useful preventive approach in this population. PMID- 29338678 TI - Supplementation with Curcuma longa reverses neurotoxic and behavioral damage in models of Alzheimer's disease: A systematic review. AB - BACKGROUND: The formation of senile plaques and neurofibrillary tangles of the tau protein are the main pathological mechanism of Alzheimer's disease (AD). Current therapies for AD offer discrete benefits to the clinical symptoms and do not prevent the continuing degeneration of neuronal cells. Therefore, novel therapeutic strategies have long been investigated, where curcumin (Curcuma longa) has shown some properties that can prevent the deleterious processes involved in neurodegenerative diseases. OBJECTIVE: The aim of the present work is to review studies that addressed the effects of curcumin in experimental models (in vivo and in vitro) for AD. METHOD: This study is a systematic review conducted between January and June 2017, in which a consultation of scientific articles from indexed periodicals was carried out in Science Direct, United States National Library of Medicine (PubMed), Cochrane Library and Scielo databases, using the following descriptors: "Curcuma longa", "Curcumin" and "Alzheimer's disease". RESULTS: A total of 32 studies were analyzed, which indicated that curcumin supplementation reverses neurotoxic and behavioral damages in both in vivo and in vitro models of AD. CONCLUSION: The administration of curcumin in experimental models seems to be a promising approach in AD, even though it is suggested that additional studies must be conducted using distinct doses and through other routes of administration. PMID- 29338679 TI - Therapeutic role of methotrexate in pediatric Crohn's disease. AB - The main role of therapy in Crohn's disease (CD) is to achieve long-term clinical remission, and to allow for normal growth and development of children. The immunomodulatory drugs used for the maintenance of remission in CD include thiopurines (azathioprine and 6-mercaptopurine) and methotrexate (MTX). Development of hepatosplenic T-cell lymphoma in some patients with inflammatory bowel disease, treated with thiopurines only or in combination with anti-tumor necrosis factor agents, resulted in a growing interest in the therapeutic application of MTX in children suffering from CD. This review summarizes the literature on the therapeutic role of MTX in children with CD. MTX is often administered as a second-line immunomodulator, and 1-year clinical remission was reported in 25-69% of children with CD after excluding for the use of thiopurines. Initial data on MTX effectiveness in mucosal healing, and as a first line immunomodulator in pediatric patients with CD, are promising. A definite conclusion, however, may only be made on the basis of additional research with a larger number of subjects. PMID- 29338680 TI - MicroRNA-466 (miR-466) functions as a tumor suppressor and prognostic factor in colorectal cancer (CRC). AB - MicroRNAs (miRNAs) have an important role in the regulation of tumor development and metastasis. In this study, we investigated the clinical and prognostic value as well as biological function of miR-466 in colorectal cancer (CRC). Tumor and adjacent healthy tissues were obtained from 100 patients diagnosed with CRC. miR 466 expression was determined by quantitative reverse transcription polymerase chain reaction (qRT-PCR). mRNA and protein levels of cyclin D1, apoptosis regulator BAX (BAX), and matrix metalloproteinase-2 (MMP-2) were analyzed by qRT PCR and Western blot, respectively, in SW-620 CRC cells transfected with miR-466 mimics or negative control miRNA. Effects of miR-466 on SW-620 cell proliferation, cell cycle and apoptosis, and invasion were investigated using CCK 8 assay, flow cytometry and Transwell assay, respectively. miR-466 expression was significantly downregulated in tumor tissues compared to matched adjacent non tumor tissues. Low expression of miR-466 was significantly correlated with the tumor size, Tumor Node Metastasis stage, lymph node metastasis, and distant metastasis. The overall survival of CRC patients with low miR-466 expression was significantly shorter compared to high-miR-466 expression group (log-rank test: p = 0.0103). Multivariate analysis revealed that low miR-466 expression was associated with poor prognosis in CRC patients. The ectopic expression of miR-466 suppressed cell proliferation and migration/invasion, as well as induced G0/G1 arrest and apoptosis in SW-620 cells. Moreover, the ectopic expression of miR-466 decreased the expression of cyclin D1 and MMP-2, but increased BAX expression in SW-620 cells. In conclusion, our findings demonstrated that miR-466 functions as a suppressor miRNA in CRC and may be used as a prognostic factor in these patients. PMID- 29338681 TI - The evolutionary process of mammalian sex determination genes focusing on marsupial SRYs. AB - BACKGROUND: Maleness in mammals is genetically determined by the Y chromosome. On the Y chromosome SRY is known as the mammalian male-determining gene. Both placental mammals (Eutheria) and marsupial mammals (Metatheria) have SRY genes. However, only eutherian SRY genes have been empirically examined by functional analyses, and the involvement of marsupial SRY in male gonad development remains speculative. RESULTS: In order to demonstrate that the marsupial SRY gene is similar to the eutherian SRY gene in function, we first examined the sequence differences between marsupial and eutherian SRY genes. Then, using a parsimony method, we identify 7 marsupial-specific ancestral substitutions, 13 eutherian specific ancestral substitutions, and 4 substitutions that occurred at the stem lineage of therian SRY genes. A literature search and molecular dynamics computational simulations support that the lineage-specific ancestral substitutions might be involved with the functional differentiation between marsupial and eutherian SRY genes. To address the function of the marsupial SRY gene in male determination, we performed luciferase assays on the testis enhancer of Sox9 core (TESCO) using the marsupial SRY. The functional assay shows that marsupial SRY gene can weakly up-regulate the luciferase expression via TESCO. CONCLUSIONS: Despite the sequence differences between the marsupial and eutherian SRY genes, our functional assay indicates that the marsupial SRY gene regulates SOX9 as a transcription factor in a similar way to the eutherian SRY gene. Our results suggest that SRY genes obtained the function of male determination in the common ancestor of Theria (placental mammals and marsupials). This suggests that the marsupial SRY gene has a function in male determination, but additional experiments are needed to be conclusive. PMID- 29338682 TI - Soybean MADS-box gene GmAGL1 promotes flowering via the photoperiod pathway. AB - BACKGROUND: The MADS-box transcription factors are an ancient family of genes that regulate numerous physiological and biochemical processes in plants and facilitate the development of floral organs. However, the functions of most of these transcription factors in soybean remain unknown. RESULTS: In this work, a MADS-box gene, GmAGL1, was overexpressed in soybean. Phenotypic analysis showed that GmAGL1 overexpression not only resulted in early maturation but also promoted flowering and affected petal development. Furthermore, the GmAGL1 was much more effective at promoting flowering under long-day conditions than under short-day conditions. Transcriptome sequencing analysis showed that before flowering, the photoperiod pathway photoreceptor CRY2 and several circadian rhythm genes, such as SPA1, were significantly down-regulated, while some other flowering-promoting circadian genes, such as GI and LHY, and downstream genes related to flower development, such as FT, LEAFY, SEP1, SEP3, FUL, and AP1, were up-regulated compared with the control. Other genes related to the flowering pathway were not noticeably affected. CONCLUSIONS: The findings reported herein indicate that GmAGL1 may promote flowering mainly through the photoperiod pathway. Interestingly, while overexpression of GmAGL1 promoted plant maturity, no reduction in seed production or oil and protein contents was observed. PMID- 29338684 TI - A simple prediction model to estimate obstructive coronary artery disease. AB - BACKGROUND: A simple noninvasive model to predict obstructive coronary artery disease (OCAD) may promote risk stratification and reduce the burden of coronary artery disease (CAD). This study aimed to develop pre-procedural, noninvasive prediction models that better estimate the probability of OCAD among patients with suspected CAD undergoing elective coronary angiography (CAG). METHODS: We included 1262 patients, who had reliable Framingham risk variable data, in a cohort without known CAD from a prospective registry of patients referred for elective CAG. We investigated pre-procedural OCAD (>=50% stenosis in at least one major coronary vessel based on CAG) predictors. RESULTS: A total of 945 (74.9%) participants had OCAD. The final modified Framingham scoring (MFS) model consisted of anemia, high-sensitivity C-reactive protein, left ventricular ejection fraction, and five Framingham factors (age, sex, total and high-density lipoprotein cholesterol, and hypertension). Bootstrap method (1000 times) revealed that the model demonstrated a good discriminative power (c statistic, 0.729 +/- 0.0225; 95% CI, 0.69-0.77). MFS provided adequate goodness of fit (P = 0.43) and showed better performance than Framingham score (c statistic, 0.703 vs. 0.521; P < 0.001) in predicting OCAD, thereby identifying patients with high risks for OCAD (risk score >= 27) with >=70% predictive value in 68.8% of subjects (range, 37.2-87.3% for low [<=17] and very high [>=41] risk scores). CONCLUSION: Our data suggested that the simple MFS risk stratification tool, which is available in most primary-level clinics, showed good performance in estimating the probability of OCAD in relatively stable patients with suspected CAD; nevertheless, further validation is needed. PMID- 29338685 TI - Functional health state description and valuation by people aged 65 and over: a pilot study. AB - BACKGROUND: Assessing quality of life among the elderly is a complex and multifaceted issue. Elderly people might find valuing and describing their personal experience of quality of life (QoL) demanding and cumbersome. This study therefore sought to determine the feasibility of administering two questionnaires in two samples of elderly people. METHODS: A preference-based instrument (EQ-5D + C) and a currently achieved functioning questionnaire (CAF) were utilized. Two pilot studies were performed. The first was performed in South Africa (n = 30), designed to test whether elderly respondents could complete and understand the two questionnaires and also to indicate which valuation method, visual analogue scale or time trade off they preferred. A second pilot study was performed in the Netherlands (n = 30), designed to investigate the use of both questionnaires in determining quality of life and health state valuations in a Dutch sample of elderly. RESULTS: Seventy percent of the South African respondents indicated that they preferred the visual analogue scale (VAS) method, when compared to the time trade-off (TTO). In both the South African and the Dutch pilot studies, the respondents, with different dependency levels, were able to use both questionnaires to determine health state descriptions and valuations. When ranking the profiles from fewer to more problems, the EQ-5D + C exhibits a gradual downwards trend, with a maximum of 100 and minimum VAS value of 41. The CAF also exhibits a gradual downwards trend, with a maximum of 1.00 and minimum VAS value of 36. CONCLUSIONS: The results indicate that individuals from different parts of the world are able to complete, describe, and value the questionnaires. It is our recommendation that a comprehensive study should be done, which includes both the EQ-5D + C questionnaire and the CAF questionnaire, since the two questionnaires have proven to be feasible in providing information on quality of life and well-being of elderly people. PMID- 29338683 TI - Genomic repeats, misassembly and reannotation: a case study with long-read resequencing of Porphyromonas gingivalis reference strains. AB - BACKGROUND: Without knowledge of their genomic sequences, it is impossible to make functional models of the bacteria that make up human and animal microbiota. Unfortunately, the vast majority of publicly available genomes are only working drafts, an incompleteness that causes numerous problems and constitutes a major obstacle to genotypic and phenotypic interpretation. In this work, we began with an example from the class Bacteroidia in the phylum Bacteroidetes, which is preponderant among human orodigestive microbiota. We successfully identify the genetic loci responsible for assembly breaks and misassemblies and demonstrate the importance and usefulness of long-read sequencing and curated reannotation. RESULTS: We showed that the fragmentation in Bacteroidia draft genomes assembled from massively parallel sequencing linearly correlates with genomic repeats of the same or greater size than the reads. We also demonstrated that some of these repeats, especially the long ones, correspond to misassembled loci in three reference Porphyromonas gingivalis genomes marked as circularized (thus complete or finished). We prove that even at modest coverage (30X), long-read resequencing together with PCR contiguity verification (rrn operons and an integrative and conjugative element or ICE) can be used to identify and correct the wrongly combined or assembled regions. Finally, although time-consuming and labor intensive, consistent manual biocuration of three P. gingivalis strains allowed us to compare and correct the existing genomic annotations, resulting in a more accurate interpretation of the genomic differences among these strains. CONCLUSIONS: In this study, we demonstrate the usefulness and importance of long read sequencing in verifying published genomes (even when complete) and generating assemblies for new bacterial strains/species with high genomic plasticity. We also show that when combined with biological validation processes and diligent biocurated annotation, this strategy helps reduce the propagation of errors in shared databases, thus limiting false conclusions based on incomplete or misleading information. PMID- 29338686 TI - Correction to: Effectiveness and safety of vitamin K antagonists and new anticoagulants in the prevention of thromboembolism in atrial fibrillation in older adults - a systematic review of reviews and the development of recommendations to reduce inappropriate prescribing. AB - CORRECTION: After publication of the original article [1] it was found that author Marc Krause's name had been spelt incorrectly. In the original article it is presented as Mark Krause, rather than Marc Krause. The revised spelling has been included in the author list for this Correction. PMID- 29338687 TI - Use of easy measurable phenotypic traits as a complementary approach to evaluate the population structure and diversity in a high heterozygous panel of tetraploid clones and cultivars. AB - BACKGROUND: Diversity in crops is fundamental for plant breeding efforts. An accurate assessment of genetic diversity, using molecular markers, such as single nucleotide polymorphism (SNP), must be able to reveal the structure of the population under study. A characterization of population structure using easy measurable phenotypic traits could be a preliminary and low-cost approach to elucidate the genetic structure of a population. A potato population of 183 genotypes was evaluated using 4859 high-quality SNPs and 19 phenotypic traits commonly recorded in potato breeding programs. A Bayesian approach, Minimum Spanning Tree (MST) and diversity estimator, as well as multivariate analysis based on phenotypic traits, were adopted to assess the population structure. RESULTS: Analysis based on molecular markers showed groups linked to the phylogenetic relationship among the germplasm as well as the link with the breeding program that provided the material. Diversity estimators consistently structured the population according to a priori group estimation. The phenotypic traits only discriminated main groups with contrasting characteristics, as different subspecies, ploidy level or membership in a breeding program, but were not able to discriminate within groups. A joint molecular and phenotypic characterization analysis discriminated groups based on phenotypic classification, taxonomic category, provenance source of genotypes and genetic background. CONCLUSIONS: This paper shows the significant level of diversity existing in a parental population of potato as well as the putative phylogenetic relationships among the genotypes. The use of easily measurable phenotypic traits among highly contrasting genotypes could be a reasonable approach to estimate population structure in the initial phases of a potato breeding program. PMID- 29338688 TI - Transurethral resection of the prostate provides more favorable clinical outcomes compared with conservative medical treatment in patients with urinary retention caused by benign prostatic obstruction. AB - BACKGROUND: To evaluate the long-term surgical outcomes of patients with urinary retention (UR) caused by a benign prostatic obstruction (BPO) who underwent transurethral resection of the prostate (TURP), and compare their outcomes with those of patients who received medication without surgical intervention. METHODS: This retrospective cohort study analyzed claims data collected during the period of 1997-2012 from Taiwan's National Health Insurance Research Database. We examined geriatric adverse events among patients who had received a diagnosis of symptomatic benign prostatic hyperplasia and whom experienced UR, and compared those who received TURP and medication only. Primary outcomes included urinary tract infection (UTI), UR, inguinal hernia, hemorrhoids, stroke, acute myocardial infarction, and bony fracture. We excluded patients who had concomitant prostate cancer, bladder cancer, or a long-term urinary catheter indwelling, as well as those who did not receive alpha-blocker medication regularly. Those aged <50 or >90 years were also excluded. The enrolled patients were categorized into TURP (n = 1218) and medication only (n = 795) groups. After 1:1 propensity score matching, we recorded and compared patients' characteristics, postoperative clinical outcomes, and geriatric adverse events. RESULTS: The TURP cohort had a lower incidence of UTI and UR during the postoperative follow-up period from 2 months to 3 years than did the medication only group (20.7% vs. 28.9% and 12.5% vs. 27.6%, respectively, p < 0.001). The life-long bone fracture incidence was also lower in the TURP cohort (7.9% vs. 9.2%, p = 0.048). The incidence of other outcomes during the postoperative follow-up period did not differ between the two groups. CONCLUSIONS: Compared with conservative treatment, TURP provides more favorable clinical outcomes in patients with UR caused by BPO. Patients who underwent TURP had a lower risk of UTI, repeat UR episodes, and emergent bony fracture. Thus, early surgical intervention should be considered for such patients. PMID- 29338690 TI - Multimorbidity patterns in the elderly: a prospective cohort study with cluster analysis. AB - BACKGROUND: Multimorbidity is the coexistence of more than two chronic diseases in the same individual; however, there is no consensus about the best definition. In addition, few studies have described the variability of multimorbidity patterns over time. The aim of this study was to identify multimorbidity patterns and their variability over a 6-year period in patients older than 65 years attended in primary health care. METHODS: A cohort study with yearly cross sectional analysis of electronic health records from 50 primary health care centres in Barcelona. Selected patients had multimorbidity and were 65 years of age or older in 2009. Diagnoses (International Classification of Primary Care, second edition) were extracted using O'Halloran criteria for chronic diseases. Multimorbidity patterns were identified using two steps: 1) multiple correspondence analysis and 2) k-means clustering. Analysis was stratified by sex and age group (65-79 and >=80 years) at the beginning of the study period. RESULTS: Analysis of 2009 electronic health records from 190,108 patients with multimorbidity (59.8% women) found a mean age of 71.8 for the 65-79 age group and 84.16 years for those over 80 (Standard Deviation [SD] 4.35 and 3.46, respectively); the median number of chronic diseases was seven (Interquartil range [IQR] 5-10). We obtained 6 clusters of multimorbidity patterns (1 nonspecific and 5 specifics) in each group, being the specific ones: Musculoskeletal, Endocrine-metabolic, Digestive/Digestive-respiratory, Neurological, and Cardiovascular patterns. A minimum of 42.5% of the sample remained in the same pattern at the end of the study, reflecting the stability of these patterns. CONCLUSIONS: This study identified six multimorbidity patterns per each group, one nonnspecific pattern and five of them with a specific pattern related to an organic system. The multimorbidity patterns obtained had similar characteristics throughout the study period. These data are useful to improve clinical management of each specific subgroup of patients showing a particular multimorbidity pattern. PMID- 29338689 TI - Variants of cancer susceptibility genes in Korean BRCA1/2 mutation-negative patients with high risk for hereditary breast cancer. AB - BACKGROUND: We evaluated the incidence and spectrum of pathogenic and likely pathogenic variants of cancer susceptibility genes in BRCA1/2 mutation-negative Korean patients with a high risk for hereditary breast cancer using a comprehensive multigene panel that included 35 cancer susceptibility genes. METHODS: Samples from 120 patients who were negative for BRCA1/2 mutations, but had been diagnosed with breast cancer that was likely hereditary, were prospectively evaluated for the prevalence of high-penetrance and moderate penetrance germline mutations. RESULTS: Nine patients (7.5%) had at least one pathogenic or likely pathogenic variant. Ten variants were identified in these patients: TP53 in two patients, PALB2 in three patients, BARD1 in two patients, BRIP1 in two patients, and MRE11A in one patient. We also identified 30 types of 139 variants of unknown significance (VUS). High-penetrance germline mutations, including TP53 and PALB2, tended to occur with high frequency in young (< 35 years) breast cancer patients (4/19, 21.1%) than in those diagnosed with breast cancer at >=35 years of age (1/101, 1.0%; p = 0.003). CONCLUSIONS: These combined results demonstrate that multigene panels offer an alternative strategy for identifying veiled pathogenic and likely pathogenic mutations in breast cancer susceptibility genes. PMID- 29338691 TI - mORCA: ubiquitous access to life science web services. AB - BACKGROUND: Technical advances in mobile devices such as smartphones and tablets have produced an extraordinary increase in their use around the world and have become part of our daily lives. The possibility of carrying these devices in a pocket, particularly mobile phones, has enabled ubiquitous access to Internet resources. Furthermore, in the life sciences world there has been a vast proliferation of data types and services that finish as Web Services. This suggests the need for research into mobile clients to deal with life sciences applications for effective usage and exploitation. RESULTS: Analysing the current features in existing bioinformatics applications managing Web Services, we have devised, implemented, and deployed an easy-to-use web-based lightweight mobile client. This client is able to browse, select, compose parameters, invoke, and monitor the execution of Web Services stored in catalogues or central repositories. The client is also able to deal with huge amounts of data between external storage mounts. In addition, we also present a validation use case, which illustrates the usage of the application while executing, monitoring, and exploring the results of a registered workflow. The software its available in the Apple Store and Android Market and the source code is publicly available in Github. CONCLUSIONS: Mobile devices are becoming increasingly important in the scientific world due to their strong potential impact on scientific applications. Bioinformatics should not fall behind this trend. We present an original software client that deals with the intrinsic limitations of such devices and propose different guidelines to provide location-independent access to computational resources in bioinformatics and biomedicine. Its modular design makes it easily expandable with the inclusion of new repositories, tools, types of visualization, etc. PMID- 29338692 TI - Emerging roles for microRNA in the regulation of Drosophila circadian clock. AB - BACKGROUND: The circadian clock, which operates within an approximately 24-h period, is closely linked to the survival and fitness of almost all living organisms. The circadian clock is generated through a negative transcription translation feedback loop. microRNAs (miRNAs) are small non-coding RNAs comprised of approximately 22 nucleotides that post-transcriptionally regulate target mRNA by either inducing mRNA degradation or inhibiting translation. RESULTS: In recent years, miRNAs have been found to play important roles in the regulation of the circadian clock, especially in Drosophila. In this review, we will use fruit flies as an example, and summarize the progress achieved in the study of miRNA mediated clock regulation. Three main aspects of the circadian clock, namely, the free-running period, locomotion phase, and circadian amplitude, are discussed in detail in the context of how miRNAs are involved in these regulations. In addition, approaches regarding the discovery of circadian-related miRNAs and their targets are also discussed. CONCLUSIONS: Research in the last decade suggests that miRNA-mediated post-transcriptional regulation is crucial to the generation and maintenance of a robust circadian clock in animals. In flies, miRNAs are known to modulate circadian rhythmicity and the free-running period, as well as circadian outputs. Further characterization of miRNAs, especially in the circadian input, will be a vital step toward a more comprehensive understanding of the functions underlying miRNA-control of the circadian clock. PMID- 29338693 TI - In vitro antimicrobial susceptibility testing of human Brucella melitensis isolates from Ulanqab of Inner Mongolia, China. AB - BACKGROUND: Brucellosis is an endemic disease in the Inner Mongolia Autonomous Region of China and Ulanqab exhibits the highest prevalence of brucellosis in this region. Due to the complex nature of Brucellosis, a cure for this disease has proven to be elusive. Furthermore, the reduced susceptibility of Brucella spp. to antimicrobial agents has been reported as a potential cause of therapeutic failure. However, detailed in vitro antimicrobial susceptibility patterns pertaining to Brucella isolates from this region have not yet been published. The aim of this study was to evaluate the antibiotic susceptibility profile of Brucella melitensis clinical isolates from Ulanqab, Inner Mongolia, China. METHODS: A total of 85 B. melitesis isolates were obtained from humans in Ulanqab of Inner Mongolia, China; the antimicrobial susceptibility of 85 clinical isolates to nine antibiotics was assessed using the E-test method according to the CLSI (Clinical and Laboratory Standards Institute) guidelines. RESULTS: All of the tested isolates were susceptible to minocycline, sparfloxacin, doxycycline, tetracycline, ciprofloxacin, gentamicin and levofloxacin. Resistance to rifampin and cotrimoxazole was observed in 1.0% (1/85) and 7.0% (6/85) of the isolates, respectively. However, rpoB gene mutations were not observed in single isolates exhibiting resistance to rifampin. CONCLUSIONS: We observed that B. melitensis isolates are susceptible to the majority of the tested antibiotics. Furthermore, minocycline and sparfloxacin exhibited extremely high bactericidal effects in relation to the B. melitensis isolates. The sensitivity of commonly used drugs for the treatment of brucellosis should be regularly monitored. To the best of our knowledge, this is the first report of rifampin and cotrimoxazole resistant isolates of B. melitensis in China. In summary, based on the findings from this study, we suggest that antibiotic administration and use should be rationalized to prevent future drug resistance. PMID- 29338694 TI - Development of a physical literacy model for older adults - a consensus process by the collaborative working group on physical literacy for older Canadians. AB - BACKGROUND: Arguably the uptake and usability of the physical activity (PA) guidelines for older adults has not been effective with only 12% of this population meeting the minimum guidelines to maintain health. Health promoters must consider innovative ways to increase PA adoption and long-term sustainability. Physical literacy (PL) is emerging as a promising strategy to increase lifelong PA participation in younger age-groups, yet there is relatively little evidence of PL being used to support older adults in achieving the PA guidelines. METHODS: An iterative and mixed-methods consensus development process was utilized over a series of six informed processes and meetings to develop a model of physical literacy for adults aged 65 years and older. RESULTS: A multi disciplinary collaborative working group (n = 9) from diverse practice settings across Canada, and representative and reflective of the full range of key elements of PL, was assembled. Three consensus meetings and two Delphi surveys, using an international cohort of 65 expert researchers, practitioners, non government organizations and older adults, was conducted. 45% responded on the first round and consensus was achieved; however, we elected to run a second survey to support our results. With 79% response rate, there was consensus to support the new PL model for older adults. CONCLUSION: Older adults are a unique group who have yet to be exposed to PL as a means to promote long-term PA participation. This new PL model uses an ecological approach to integrate PL into the lifestyles of most older adults. Understanding the interactions between components and elements that facilitate PL will ultimately provide a new and effective tool to target PA promotion and adherence for all older Canadians. PMID- 29338695 TI - Novel sensing technology in fall risk assessment in older adults: a systematic review. AB - BACKGROUND: Falls are a major health problem for older adults with significant physical and psychological consequences. A first step of successful fall prevention is to identify those at risk of falling. Recent advancement in sensing technology offers the possibility of objective, low-cost and easy-to-implement fall risk assessment. The objective of this systematic review is to assess the current state of sensing technology on providing objective fall risk assessment in older adults. METHODS: A systematic review was conducted in accordance to the Preferred Reporting Items for Systematic Reviews and Meta-Analysis statement (PRISMA). RESULTS: Twenty-two studies out of 855 articles were systematically identified and included in this review. Pertinent methodological features (sensing technique, assessment activities, outcome variables, and fall discrimination/prediction models) were extracted from each article. Four major sensing technologies (inertial sensors, video/depth camera, pressure sensing platform and laser sensing) were reported to provide accurate fall risk diagnostic in older adults. Steady state walking, static/dynamic balance, and functional mobility were used as the assessment activity. A diverse range of diagnostic accuracy across studies (47.9% - 100%) were reported, due to variation in measured kinematic/kinetic parameters and modelling techniques. CONCLUSIONS: A wide range of sensor technologies have been utilized in fall risk assessment in older adults. Overall, these devices have the potential to provide an accurate, inexpensive, and easy-to-implement fall risk assessment. However, the variation in measured parameters, assessment tools, sensor sites, movement tasks, and modelling techniques, precludes a firm conclusion on their ability to predict future falls. Future work is needed to determine a clinical meaningful and easy to interpret fall risk diagnosis utilizing sensing technology. Additionally, the gap between functional evaluation and user experience to technology should be addressed. PMID- 29338697 TI - Additional dexamethasone in chemotherapies with carboplatin and paclitaxel could reduce the impaired glycometabolism in rat models. AB - BACKGROUND: Side-effects have been considered as the limitation of the chemotherapy agents' administration and life quality in patients with ovarian cancers. In order to explore the influence of the chemotherapy agents commonly used in ovarian cancer patients on the blood glucose metabolism in rat models, we conducted this study which simulated the conditions of clinical protocols. METHODS: Eighty clean-grade female Wistar rats were randomized into 8 groups: Group 1 (Negative control), Group 1' (Dexamethasone), Group 2 (Carboplatin), Group 2' (Carboplatin-plus-dexamethasone), Group 3 (Paclitaxel), Group 3' (Paclitaxel-plus-dexamethasone), Group 4 (Combined therapy), Group 4' (Combined therapy-plus-dexamethasone). On day 0, 4, 7 and 14, after fasted for 12 h, the rats in all groups underwent a glucose load and their blood glucose, glucagon and insulin levels were measured. RESULTS: The glucose levels in group 2, 3 and 4 at 1 h after the loading on day 4 significantly increased (P = 0.190, 0.008 and 0.025, respectively). The glucagon levels in group 3 and 4 showed a similar trend and the increase was not suppressed by the glucose loading (P < 0.001). A significant decrease of insulin levels in group 2, 3 and 4 were observed on day 14 after treatment (P = 0.043, 0.019 and 0.019, respectively). The change of HOMA2 %B, an index reflects the ability of insulin secretion was negatively corresponded to the glucose levels, and the trends of HOMA2 IR, an index shows insulin resistance, were positively correlated to the glucose levels. The application of dexamethasone could reduce the degree of increased glucose levels significantly in group 2, 3 and 4. There were no differences in overall survival between the 8 groups. Edema in the stroma of pancreases was observed in group 3, 3', 4 and 4' on day 4 after treatment (P = 0.002, 0.002, 0.000 and 0.000 respectively) and lasted until day 14. CONCLUSIONS: Carboplatin and paclitaxel administration could cause a transient hyperglycemia in rats. This effect might occur by the combination of glucagon accumulation due to the decrease in islet cell secretion. The additional dexamethasone in the combination protocol of carboplatin and paclitaxel seemed to reduce the impaired blood glucose metabolism. PMID- 29338698 TI - Enteral immunonutrition versus enteral nutrition for gastric cancer patients undergoing a total gastrectomy: a systematic review and meta-analysis. AB - BACKGROUND: Nutrition support is a common means for patients with gastric cancer, especially for those undergoing elective surgery. Recently, enteral immunonutrition (EIN) was increasingly found to be more effective than enteral nutrition (EN) in enhancing the host immunity and eventually improving the prognosis of gastric cancer patients undergoing gastrectomy. However, the results reported were not consistent. This meta-analysis aimed to assess the impact of EIN for patients with GC on biochemical, immune indices and clinical outcomes. METHODS: Four electronical databases (Medline, EMBASE, Scopus and Cochrane library) were used to search articles in peer-reviewed, English-language journals. Mean difference (MD), Relative risk (RR), or standard mean difference (SMD) with 95% confidence interval (CI) were calculated. Heterogeneity was assessed by Cochrane Q and I2 statistic combined with corresponding P-value. The analysis was carried out with RevMan 5.3. RESULTS: Seven studies involving 583 patients were eligible for the pooled analysis. EIN, when beyond a 7-day time frame post-operatively (D >= 7), increased level of CD4+ (SMD = 0.99; 95% CI, 0.65-1.33; P < 0.00001), CD4+/ CD8+ (SMD = 0.34; 95% CI, 0.02-0.67; P = 0.04), the IgM (SMD = 1.15; 95% CI, 0.11-2.20; P = 0.03), the IgG (SMD = 0.98; 95% CI, 0.55-1.42; P < 0.0001), the lymphocyte (SMD = 0.69; 95% CI, 0.32-1.06; P = 0.0003), and the proalbumin (SMD = 0.73; 95% CI, 0.33-1.14; P = 0.0004). However, those increased effects were not obvious within a 7-day time-frame post operatively (D < 7). The levels of CD8+ and other serum proteins except proalbumin were not improved both on D >= 7 and D < 7. Clinical outcomes such as systemic inflammatory response syndrone (SIRS) (MD, - 0.89 days; 95% CI, - 1.40 to - 0.39; P = 0.005), and postoperative complications (RR, 0.29; 95% CI, 0.14 0.60; P = 0.001) were significantly reduced in EIN group. Pulmonary infection and length of hospitalization (LHS) were not improved no matter what time after surgery. CONCLUSIONS: EIN was found to improve the cellular immunity, modulate inflammatory reaction and reduce postoperative complication for GC patients undergoing radical gastrointestinal surgery. Exclusion of grey literature and non English language studies was the key limitation in this study. PMID- 29338699 TI - Assessing predictors of intention to prescribe sick leave among primary care physicians using the theory of planned behaviour. AB - BACKGROUND: Providing sickness certification is a decision that primary care physicians make on a daily basis. The majority of sickness certification studies in the literature involve a general assessment of physician or patient behaviour without the use of a robust psychological framework to guide research accuracy. To address this deficiency, this study utilized the Theory of Planned Behaviour (TPB) to specifically gauge the intention and other salient predictors related to sickness certification prescribing behaviour amongst primary care physicians. METHODS: A cross-sectional study was conducted among N = 271 primary care physicians from 86 primary care practices throughout two states in Malaysia. Questionnaires used were specifically developed based on the TPB, consisting of both direct and indirect measures related to the provision of sickness leave. Questionnaire validity was established through factor analysis and the determination of internal consistency between theoretically related constructs. The temporal stability of the indirect measures was determined via the test retest correlation analysis. Structural equation modelling was conducted to determine the strength of predictors related to intentions. RESULTS: The mean scores for intention to provide patients with sickness was low. The Cronbach alpha value for the direct measures was good: overall physician intent to provide sick leave (0.77), physician attitude towards prescribing sick leave for patients (0.77) and physician attitude in trusting the intention of patients seeking sick leave (0.83). The temporal stability of the indirect measures of the questionnaire was satisfactory with significant correlation between constructs separated by an interval of two weeks (p < 0.05). Attitudes and subjective norms were identified as important predictors in physician intention to provide sick leave to patients. CONCLUSION: An integrated behavioural model utilizing the TPB could help fully explain the complex act of providing sickness leave to patients. Findings from this study could assist relevant agencies to facilitate the creation of policies that may help regulate the provision of sickness leave and alleviate the work burden of sickness leave tasks faced by physicians in Malaysia. PMID- 29338696 TI - Transcriptional responses of Escherichia coli during recovery from inorganic or organic mercury exposure. AB - BACKGROUND: The protean chemical properties of mercury have long made it attractive for diverse applications, but its toxicity requires great care in its use, disposal, and recycling. Mercury occurs in multiple chemical forms, and the molecular basis for the distinct toxicity of its various forms is only partly understood. Global transcriptomics applied over time can reveal how a cell recognizes a toxicant and what cellular subsystems it marshals to repair and recover from the damage. The longitudinal effects on the transcriptome of exponential phase E. coli were compared during sub-acute exposure to mercuric chloride (HgCl2) or to phenylmercuric acetate (PMA) using RNA-Seq. RESULTS: Differential gene expression revealed common and distinct responses to the mercurials throughout recovery. Cultures exhibited growth stasis immediately after each mercurial exposure but returned to normal growth more quickly after PMA exposure than after HgCl2 exposure. Correspondingly, PMA rapidly elicited up regulation of a large number of genes which continued for 30 min, whereas fewer genes were up-regulated early after HgCl2 exposure only some of which overlapped with PMA up-regulated genes. By 60 min gene expression in PMA-exposed cells was almost indistinguishable from unexposed cells, but HgCl2 exposed cells still had many differentially expressed genes. Relative expression of energy production and most metabolite uptake pathways declined with both compounds, but nearly all stress response systems were up-regulated by one or the other mercurial during recovery. CONCLUSIONS: Sub-acute exposure influenced expression of ~45% of all genes with many distinct responses for each compound, reflecting differential biochemical damage by each mercurial and the corresponding resources available for repair. This study is the first global, high-resolution view of the transcriptional responses to any common toxicant in a prokaryotic model system from exposure to recovery of active growth. The responses provoked by these two mercurials in this model bacterium also provide insights about how higher organisms may respond to these ubiquitous metal toxicants. PMID- 29338700 TI - Correction to: A systematic comparison of copy number alterations in four types of female cancer. AB - After publication of the original article [1] the authors found that the article contained an incorrect version of Fig. 4. This does not affect the results and conclusions of the article. PMID- 29338701 TI - SSH1 expression is associated with gastric cancer progression and predicts a poor prognosis. AB - BACKGROUND: Slingshot homolog-1 (SSH1) plays an important role in pathological processes, including in the occurrence and development of tumours. The purpose of this study was to determine whether SSH1 is a key biomarker with prognostic value for survival in patients with gastric cancer. METHODS: We performed immunohistochemistry (IHC) on tissue microarrays containing 100 gastric cancer specimens to evaluate SSH1 protein expression. The association of pathological characteristics with cumulative survival was determined by Kaplan-Meier analysis. A Cox proportional hazards model was generated in the multi-factorial survival analysis to identify univariate prognostic factors of GC. RESULTS: SSH1 expression level in gastric cancer tissues was significantly associated with lymph node metastasis (P = 0.032). Additionally, multivariate regression analysis clearly indicated that SSH1 expression was significantly correlated with poor clinical outcomes of patients with gastric cancer (P = 0.016). Multivariate analyses showed that SSH1 was the best predictor of poor prognosis in patients with gastric cancer (P = 0.030). CONCLUSIONS: SSH1 expression is associated with gastric cancer progression and predicts a poor prognosis. SSH1 may play an important role in the development of gastric cancer, and it is a promising target for prevention and/or treatment of gastric cancer. PMID- 29338702 TI - Estimating the scale of chronic hepatitis C virus infection in the EU/EEA: a focus on migrants from anti-HCV endemic countries. AB - BACKGROUND: Increasing the proportion diagnosed with and on treatment for chronic hepatitis C (CHC) is key to the elimination of hepatitis C in Europe. This study contributes to secondary prevention planning in the European Union/European Economic Area (EU/EEA) by estimating the number of CHC (anti-HCV positive and viraemic) cases among migrants living in the EU/EEA and born in endemic countries, defining the most affected migrant populations, and assessing whether country of birth prevalence is a reliable proxy for migrant prevalence. METHODS: Migrant country of birth and population size extracted from statistical databases and anti-HCV prevalence in countries of birth and in EU/EEA countries derived from a systematic literature search were used to estimate caseload among and most affected migrants. Reliability of country of birth prevalence as a proxy for migrant prevalence was assessed via a systematic literature search. RESULTS: Approximately 11% of the EU/EEA adult population is foreign-born, 79% of whom were born in endemic (anti-HCV prevalence >=1%) countries. Anti-HCV/CHC prevalence in migrants from endemic countries residing in the EU/EEA is estimated at 2.3%/1.6%, corresponding to ~580,000 CHC infections or 14% of the CHC disease burden in the EU/EEA. The highest number of cases is found among migrants from Romania and Russia (50-60,000 cases each) and migrants from Italy, Morocco, Pakistan, Poland and Ukraine (25-35,000 cases each). Ten studies reporting prevalence in migrants in Europe were identified; in seven of these estimates, prevalence was comparable with the country of birth prevalence and in three estimates it was lower. DISCUSSION: Migrants are disproportionately affected by CHC, account for a considerable number of CHC infections in EU/EEA countries, and are an important population for targeted case finding and treatment. Limited data suggest that country of birth prevalence can be used as a proxy for the prevalence in migrants. PMID- 29338703 TI - Diagnostic accuracy and prediction increment of markers of epithelial-mesenchymal transition to assess cancer cell detachment from primary tumors. AB - BACKGROUND: Metastases play a role in about 90% of cancer deaths. Markers of epithelial-mesenchymal transition (EMT) measured in primary tumor cancer cells might provide diagnostic information about the likelihood that cancer cells have detached from the primary tumor. Used together with established diagnostic tests of detachment-lymph node evaluation and radiologic imaging-EMT marker measurements might improve the ability of clinicians to assess the patient's risk of metastatic disease. Translation of EMT markers to clinical use has been hampered by a lack of valid analyses of clinically-informative parameters. Here, we demonstrate a rigorous approach to estimating the sensitivity, specificity, and prediction increment of an EMT marker to assess cancer cell detachment from primary tumors. METHODS: We illustrate the approach using immunohistochemical measurements of the EMT marker E-cadherin in a set of colorectal primary tumors from a population-based prospective cohort in North Carolina. Bayesian latent class analysis was used to estimate sensitivity and specificity in a setting of multiple imperfect diagnostic tests and no gold standard. Risk reclassification analysis was used to assess the extent to which addition of the marker to the panel of established diagnostic tests would improve mortality prediction. We explored how changing the latent class conditional dependence assumptions and definition of marker positivity would impact the results. RESULTS: All diagnostic accuracy and prediction increment statistics varied with the choice of cut point to define marker positivity. When comparing different definitions of marker positivity to each other, numerous trade-offs were observed in terms of sensitivity, specificity, predictive discrimination, and prediction model calibration. We then discussed several implementation considerations and the plausibility of analytic assumptions. CONCLUSIONS: The approaches presented here can be extended to any EMT marker, to most forms of cancer, and to different kinds of EMT marker measurements, such as RNA or gene methylation data. These methods provide valid, clinically-informative assessment of whether and how to use a given EMT marker to refine tumor staging and consequent treatment decisions. PMID- 29338704 TI - Alcohol marketing on YouTube: exploratory analysis of content adaptation to enhance user engagement in different national contexts. AB - BACKGROUND: We know little about how social media alcohol marketing is utilized for alcohol promotion in different national contexts. There does not appear to be any academic work on online exposure to alcohol marketing via social media in India, and most of the limited research in Australia has focused on Facebook. Hence, the present study extends previous research by investigating alcohol promotion conducted on an under-researched form of social media (YouTube) in two contrasting geographic contexts. This study examines and compares the types of strategies used by marketers on Indian and Australian alcohol brands with the greatest YouTube presence, and the extent to which users engage with these strategies. METHODS: The 10 alcohol brands per country with the greatest YouTube presence were identified based on the number of 'subscriptions'. The number of videos, views per video, and the type of content within the videos were collected for each brand. The data were analyzed using an inductive coding approach, using NVivo 10. RESULTS: The targeted brands had gathered 98,881 subscriptions (Indian brands: n = 13,868; Australian brands: n = 85,013). The type of marketing strategies utilized by brands were a mix of those that differed by country (e.g. sexually suggestive content in India and posts related to the brand's tradition or heritage in Australia) and generic approaches (e.g. encouraging time- and event-specific drinking; demonstrations of food/cocktail recipes; camaraderie; competitions and prize draws; and brand sponsorship at music, sports, and fashion events). CONCLUSIONS: This cross-national comparison demonstrates that YouTube provides alcohol marketers with an advertising platform where they utilize tailored marketing approaches to cater to specific national contexts and develop content on the cultural meanings users invoke in their interactions with these strategies. Those exposed to alcohol marketing on YouTube are likely to include those under the legal drinking age. PMID- 29338705 TI - Frailty as a predictor of hospital length of stay after elective total joint replacements in elderly patients. AB - BACKGROUND: Total joint replacement procedures are increasing in number because of population aging and osteoarthritis development. Defined as a lack of physiological reserves and the inability to adequately respond to external stressors, frailty may be more common than expected in older patients with degenerative arthritis awaiting total joint replacements. The aim of the present study was to assess associations between frailty and adverse outcomes, frailty prevalence among elderly patients awaiting elective TJR, and agreement between 2 frailty screening instruments. METHODS: We undertook a prospective, observational, pilot study in our institution. We enrolled patients 65 years or older who were awaiting elective knee or hip replacement surgery and evaluated them in our preoperative clinic with planned postoperative hospital length of stay greater than 24 h. Patients were asked to grade their perceived well-being on the Clinical Frailty Scale and to answer questions on the FRAIL Scale. RESULTS: The Clinical Frailty Scale classified 40 patients (45.9%) as robust, 43 patients (49.4%) as prefrail and 4 patients (4.5%) as frail, while the FRAIL Scale categorized 12 patients (13.7%) as robust, 54 patients (62.0%) as prefrail, and 20 patients (22.9%) as frail. Robustness, ascertained on the Clinical Frailty Scale was, while the FRAIL Scale was not, significantly associated with shorter hospital length of stay and fewer discharges to the rehabilitation center. Both scales showed moderate mutual agreement. CONCLUSION: Screening for frailty identified between 5% and 10% of patients at risk of adverse outcomes. The Clinical Frailty Scale was, while the FRAIL scale was not, significantly associated with hospital length of stay and discharge to rehabilitation center in our cohort of total joint replacement patients. PMID- 29338706 TI - Miliary tuberculosis with co-existing pulmonary cryptococcosis in non-HIV patient without underlying diseases: a case report. AB - BACKGROUND: Tuberculosis and cryptococcosis co-infection usually occurs in immunosuppressed patients with impaired cell-mediated immunity. However, there are few reports about such co-infection in non-HIV patients without underlying diseases. Here, we report a case of miliary tuberculosis with co-existing pulmonary cryptococcosis in non-HIV patient without underlying diseases. CASE PRESENTATION: An 84-year-old Asian female presented to our hospital with complaints of a 1-week history of abdominal pain and appetite loss. Chest computed tomography (CT) showed diffuse micronodules in random patterns in both lung fields. Liver, skin and bone marrow biopsies showed epithelioid cell granuloma. Polymerase chain reaction of gastric aspirate was positive for Mycobacterium tuberculosis. According to these findings, miliary tuberculosis was suspected and antimycobacterial therapy was initiated. After a 6-month treatment course, chest radiograph showed new multiple nodules in the right middle lung field. Chest CT showed that a right S6 small nodule was increased and new multiple nodules appeared in the right lower lobe. Flexible fiberoptic bronchoscopy was subsequently perfomed. Cytology of the bronchial lavage showed a small number of Periodic acid-Schiff-positive bodies, suggesting Cryptococcus species. Moreover, serum cryptococcal antigen testing was positive. According to these findings, pulmonary cryptococcosis was diagnosed, although the culture was negative. Oral fluconazole therapy was subsequently initiated. After a 6-month treatment course, chest radiograph showed gradual improvement. CONCLUSION: Although tuberculosis and cryptococcosis co-infection is relatively rare in immunocompromised hosts, such as those with acquired immunodeficiency syndrome, clinicians should be aware that these infections can co-exist even in non-HIV patients without underlying diseases. PMID- 29338707 TI - Is the likelihood of spousal violence lower or higher among childless women? Evidence from Nigeria demographic and health surveys. AB - BACKGROUND: Few studies have been able to determine whether the likelihood of spousal violence is higher or lower among childless women compared with women who have children. This is because most studies linking childlessness and spousal violence were either qualitative or were conducted among childless women attending fertility clinics. In the fewer quantitative studies that linked childlessness and spousal violence, results are mixed and yet to be verified in Nigeria using nationally representative sample data. The current study addresses this knowledge gap by raising the research question: is the likelihood of spousal violence lower or higher among childless women? METHODS: The study analysed data from 2008 and 2013 Nigeria Demographic and Health Surveys. Only women aged 35-49 years are included in the analysis. The outcome variable was spousal violence, while the key explanatory variable was parity status categorised into childless, have only one child, and have two or more children. Selected individual-level and community-level variables were included as additional explanatory variables. The multilevel mixed-effects logistic regression analysis was applied in four nested models using Stata 12. RESULTS: In Model 1, result show 57% more likelihood of spousal violence among women who have two or more children compared with childless women (OR = 1.570: CI: 1.074-2.294). In Model 2, women who have two or more children were 52.3% more likely to experience spousal violence compared with childless women (OR = 1.523; CI: 1.037-2.247). In Model 3, the likelihood of spousal violence was 67.2% higher among women who have two or more children compared with childless women (OR = 1.672; CI: 1.140-2.452). In the full model, women who have two or more children were 50.8% more likely to experience spousal violence compared with childless women (OR = 1.508; CI: 1.077-2.234). The Intra Class Correlation (ICC) provides evidence to support community contributions to prevalence of spousal violence. CONCLUSIONS: The likelihood of spousal violence is lower among childless women in Nigeria. Causes of spousal violence against women cut across individual, family, and community characteristics irrespective of childlessness or number of children. Current Behaviour Change Communication should be strengthened by adequate enforcement of the newly enacted Violence Against Persons (Prohibition) Act of 2015. PMID- 29338708 TI - Patterns of illness disclosure among Indian slum dwellers: a qualitative study. AB - BACKGROUND: Slum dwellers display specific traits when it comes to disclosing their illnesses to professionals. The resulting actions lead to poor health seeking behaviour and underutilisation of existing formal health facilities. The ways that slum people use to communicate their feelings about illness, the type of confidants that they choose, and the supportive and unsupportive social and cultural interactions to which they are exposed have not yet been studied in the Indian context, which constitutes an important knowledge gap for Indian policymakers and practitioners alike. To that end, this study examines the patterns of illness disclosure in Indian slums and the underpinning factors which shape the slum dwellers' disclosing attitude. METHODS: In-depth, semi-structured interviews were conducted among 105 men and 113 women who experienced illness in the year prior to the study period. Respondents were selected from four urban slums in two Indian cities, Bangalore and Kolkata. RESULTS: Findings indicate that women have more confidants at different social levels, while men have a limited network of disclosures which is culturally and socially mediated. Gender role limitations, exclusion from peer groups and unsupportive local situations are the major cause of disclosure delay or non-disclosure among men, while the main concerns for women are a lack of proper knowledge about illness, unsupportive responses received from other people on certain occasions, the fear of social stigma, material loss and the burden of the local situation. Prompt sharing of illness among men is linked with prevention intention and coping with biological problems, whereas factors determining disclosure for women relate to ensuring emotional and instrumental safety, preventing collateral damage of illness, and preventing and managing biological complications. CONCLUSIONS: The findings reveal that patterns of disclosure are not determined by the acknowledgment of illness but largely depend on the interplay between individual agency, disclosure consequences and the socio cultural environment. The results of this study can contribute significantly to mitigating the pivotal knowledge gap between health policymakers, practitioners and patients, leading to the formulation of policies that maximise the utilisation of health facilities in slums. PMID- 29338709 TI - WorMachine: machine learning-based phenotypic analysis tool for worms. AB - BACKGROUND: Caenorhabditis elegans nematodes are powerful model organisms, yet quantification of visible phenotypes is still often labor-intensive, biased, and error-prone. We developed WorMachine, a three-step MATLAB-based image analysis software that allows (1) automated identification of C. elegans worms, (2) extraction of morphological features and quantification of fluorescent signals, and (3) machine learning techniques for high-level analysis. RESULTS: We examined the power of WorMachine using five separate representative assays: supervised classification of binary-sex phenotype, scoring continuous-sexual phenotypes, quantifying the effects of two different RNA interference treatments, and measuring intracellular protein aggregation. CONCLUSIONS: WorMachine is suitable for analysis of a variety of biological questions and provides an accurate and reproducible analysis tool for measuring diverse phenotypes. It serves as a "quick and easy," convenient, high-throughput, and automated solution for nematode research. PMID- 29338710 TI - A genetically encoded Ca2+ indicator based on circularly permutated sea anemone red fluorescent protein eqFP578. AB - BACKGROUND: Genetically encoded calcium ion (Ca2+) indicators (GECIs) are indispensable tools for measuring Ca2+ dynamics and neuronal activities in vitro and in vivo. Red fluorescent protein (RFP)-based GECIs have inherent advantages relative to green fluorescent protein-based GECIs due to the longer wavelength light used for excitation. Longer wavelength light is associated with decreased phototoxicity and deeper penetration through tissue. Red GECI can also enable multicolor visualization with blue- or cyan-excitable fluorophores. RESULTS: Here we report the development, structure, and validation of a new RFP-based GECI, K GECO1, based on a circularly permutated RFP derived from the sea anemone Entacmaea quadricolor. We have characterized the performance of K-GECO1 in cultured HeLa cells, dissociated neurons, stem-cell-derived cardiomyocytes, organotypic brain slices, zebrafish spinal cord in vivo, and mouse brain in vivo. CONCLUSION: K-GECO1 is the archetype of a new lineage of GECIs based on the RFP eqFP578 scaffold. It offers high sensitivity and fast kinetics, similar or better than those of current state-of-the-art indicators, with diminished lysosomal accumulation and minimal blue-light photoactivation. Further refinements of the K GECO1 lineage could lead to further improved variants with overall performance that exceeds that of the most highly optimized red GECIs. PMID- 29338711 TI - Blood parasite infections in a wild population of ravens (Corvus corax) in Bulgaria. AB - BACKGROUND: Blood parasites have been studied intensely in many families of avian hosts, but corvids, a particularly cosmopolitan family, remain underexplored. Haemosporidian parasites of the common raven (Corvus corax) have not been studied, although it is the largest, most adaptable, and widespread corvid. Genetic sequence data from parasites of ravens can enhance the understanding of speciation patterns and specificity of haemosporidian parasites in corvids, and shed light how these hosts cope with parasite pressure. METHODS: A baited cage trap was used to catch 86 ravens and a nested PCR protocol was used to amplify a 479 bp fragment of the haemosporidian cytochrome b gene from the samples. The obtained sequences were compared with the MalAvi database of all published haemosporidian lineages and a phylogenetic tree including all detected raven parasites was constructed. An examination of blood smears was performed for assessment of infection intensity. RESULTS: Twenty blood parasite lineages were recovered from ravens caught in a wild population in Bulgaria. The prevalence of generalist Plasmodium lineages was 49%, and the prevalence of Leucocytozoon lineages was 31%. Out of 13 detected Leucocytozoon lineages six were known from different corvids, while seven others seem to be specific to ravens. A phylogenetic reconstruction suggests that Leucocytozoon lineages of ravens and other corvids are not monophyletic, with some groups appearing closely related to parasites of other host families. CONCLUSIONS: Several different, morphologically cryptic groups of Leucocytozoon parasites appear to infect corvids. Ravens harbour both generalist corvid Leucocytozoon as well as apparently species specific lineages. The extraordinary breeding ecology and scavenging lifestyle possibly allow ravens to evade vectors and have relatively low blood parasite prevalence compared to other corvids. PMID- 29338712 TI - Association between the level of education and knowledge, attitudes and practices regarding dengue in the Caribbean region of Colombia. AB - BACKGROUND: Community integration in dengue control requires assessments of knowledge, attitudes and practices (KAPs), which can vary widely according to demographic and educational factors. We aimed to describe and compare the KAPs according to level of education in municipalities in the Caribbean region of Colombia. METHODS: A survey was administered from October to December 2015, including families selected through probabilistic sampling in eleven municipalities. The analysis focused on the comparative description of the responses according to level of education. The KAP prevalence ratios (PR) according to education were estimated using Poisson regression (robust), including age and sex as adjustment variables. RESULTS: Out of 1057 participants, 1054 (99.7%) surveys were available for analysis, including 614 (58.3%) who had a high school level of education or higher and 440 (41.7%) who had a lower level of education (not high school graduates). The high school graduates showed a higher frequency of correct answers in relation to knowledge about dengue symptoms and transmission. On the other hand, graduates showed a higher probability of practices and attitudes that favor dengue control, including not storing water in containers (PR: 2.2; 95% Confidence Interval [CI]: 1.42-3.43), attend community meetings (PR: 1.33; 95% CI: 1.07-1.65), educate family members and neighbors in prevention measures (PR: 1.35; 95% CI: 1.15-1.59). CONCLUSIONS: Level of education could be a key determinant of knowledge of the disease and its transmission, as well as attitudes and practices, especially those that involve the integration of community efforts for dengue control. PMID- 29338713 TI - LncRNA DANCR involved osteolysis after total hip arthroplasty by regulating FOXO1 expression to inhibit osteoblast differentiation. AB - BACKGROUND: Aseptic loosening of artificial hip joint is a major complication affecting the long-term use of the artificial hip joint, and is the main cause of joint replacement failure. However, the mechanism of aseptic loosening of THR has not yet cleared. The aim of this study was to investigate the underlying mechanism of DANCR in osteoblast differentiation (OD). METHODS: We detected the expressions of DANCR and FOXO1 in clinical samples and mesenchymal stem cells (MSCs) by qRT-PCR and western blotting. The effects of polymethylmethacrylate (PMMA) on OD of MSCs were examined by alkaline phosphatase (ALP) activity and Alizarin Red S (ARS) staining. The expressions of OD markers were measured by qRT PCR and western blotting. The mechanism of DANCR in OD was detected by RNA pull down, RNA immunoprecipitation (RIP) assay and ubiquitination assays. RESULTS: Compared with the surrounding normal tissues, DANCR expression was up-regulated and FOXO1 expression was down-regulated in periprosthetic tissues. PMMA suppressed ALP activity, increased DANCR expression, and decreased the expressions of FOXO1, Runx2, Osterix (Ostx) and osteocalcin (OCN). ARS staining showed that PMMA inhibited the OD of MSCs. Knockdown of DANCR attenuated the inhibitory effect of PMMA on OD. Knockdown of FOXO1 could reverse the effect of si-DANC. RNA pull-down and RIP assay implicated that DANCR bound to FOXO1. Ubiquitination assay indicated that si-DANCR could repress Skp2-mediated ubiquitination of FOXO1. CONCLUSION: LncRNA DANCR could inhibit OD by regulating FOXO1 expression. PMID- 29338714 TI - The effects of metformin in type 1 diabetes mellitus. AB - BACKGROUND: This retrospective study investigated the effect of adding metformin to pharmacologic insulin dosing in type 1 diabetics on insulin therapy 1 year after treatment compared with patients on insulin therapy alone. METHODS: Twenty nine adults with type 1 diabetes who had metformin added to their insulin therapy for 12 months were compared with 29 adults with type 1 diabetes who remained on insulin-alone therapy. RESULTS: Fifty-eight patients with C peptide negative-type 1 diabetics (26 females, mean age: 29.01 +/- 7.03 years, BMI: 24.18 +/- 3.16 kg/m2) were analyzed. Age, sex, body weight, insulin dose requirement, plasma glucose (PG), blood pressure (BP), and lipids did not differ between groups before treatment (p > 0.05). Metabolic syndrome (44.8 vs 41.4%, p > 0.05) did not differ between the metformin-insulin and insulin alone groups before treatment. Metabolic syndrome was more decreased in the metformin-insulin group than in the insulin alone group after treatment (-8.9 +/- 1.3 vs. 2.5 +/- 0.6%, p = 0.028). Insulin dose requirement was lower in the metformin-insulin group than in the insulin alone group (-0.03 vs. 0.11 IU/kg/d, p = 0.006). Fasting PG (-26.9 +/- 54.2 vs. 0.7 +/- 29.5 mg/dL, p = 0.022) and postprandial PG (-43.1 +/- 61.8 mg/dL vs. -3.1 +/- 40.1 mg/dL, p = 0.010) was more decreased in the metformin-insulin group than in the insulin alone group. Body weight, lipids, and HbA1c did not differ between the groups (p > 0.05). CONCLUSIONS: Metformin decreased glucose concentrations, reduced metabolic syndrome, as well as insulin dose requirement more than insulin therapy alone, 1 year after treatment. These results were independent of blood lipid improvement or weight loss, although on average weight remained decreased with metformin-insulin therapy, whereas the average weight increased with insulin therapy alone. PMID- 29338715 TI - Landscape genomics: natural selection drives the evolution of mitogenome in penguins. AB - BACKGROUND: Mitochondria play a key role in the balance of energy and heat production, and therefore the mitochondrial genome is under natural selection by environmental temperature and food availability, since starvation can generate more efficient coupling of energy production. However, selection over mitochondrial DNA (mtDNA) genes has usually been evaluated at the population level. We sequenced by NGS 12 mitogenomes and with four published genomes, assessed genetic variation in ten penguin species distributed from the equator to Antarctica. Signatures of selection of 13 mitochondrial protein-coding genes were evaluated by comparing among species within and among genera (Spheniscus, Pygoscelis, Eudyptula, Eudyptes and Aptenodytes). The genetic data were correlated with environmental data obtained through remote sensing (sea surface temperature [SST], chlorophyll levels [Chl] and a combination of SST and Chl [COM]) through the distribution of these species. RESULTS: We identified the complete mtDNA genomes of several penguin species, including ND6 and 8 tRNAs on the light strand and 12 protein coding genes, 14 tRNAs and two rRNAs positioned on the heavy strand. The highest diversity was found in NADH dehydrogenase genes and the lowest in COX genes. The lowest evolutionary divergence among species was between Humboldt (Spheniscus humboldti) and Galapagos (S. mendiculus) penguins (0.004), while the highest was observed between little penguin (Eudyptula minor) and Adelie penguin (Pygoscelis adeliae) (0.097). We identified a signature of purifying selection (Ka/Ks < 1) across the mitochondrial genome, which is consistent with the hypothesis that purifying selection is constraining mitogenome evolution to maintain Oxidative phosphorylation (OXPHOS) proteins and functionality. Pairwise species maximum-likelihood analyses of selection at codon sites suggest positive selection has occurred on ATP8 (Fixed-Effects Likelihood, FEL) and ND4 (Single Likelihood Ancestral Counting, SLAC) in all penguins. In contrast, COX1 had a signature of strong negative selection. ND4 Ka/Ks ratios were highly correlated with SST (Mantel, p-value: 0.0001; GLM, p-value: 0.00001) and thus may be related to climate adaptation throughout penguin speciation. CONCLUSIONS: These results identify mtDNA candidate genes under selection which could be involved in broad-scale adaptations of penguins to their environment. Such knowledge may be particularly useful for developing predictive models of how these species may respond to severe climatic changes in the future. PMID- 29338716 TI - Donor age affects proteome composition of tenocyte-derived engineered tendon. AB - BACKGROUND: The concept of tissue engineering is to deliver to the injury site biological scaffolds carrying functional cells that will enhance healing response. The preferred cell source is autologous in order to reduce immune response in the treated individual. However, in elderly patients age-related changes in synthetic activity of the implanted cells and subsequent alterations in tissue protein content may affect therapeutic outcomes. In this study we investigated the effect of donor age on proteome composition of tenocyte-derived tendon tissue-engineered constructs. RESULTS: Liquid chromatography tandem mass spectrometry was used to assess the proteome of tissue-engineered constructs derived from young and old equine tenocytes. Ageing was associated with altered extracellular matrix composition, especially accumulation of collagens (type I, III and XIV), and lower cytoskeletal turnover. Proteins involved in cell responsiveness to mechanical stimuli and cell-extracellular matrix interaction (calponin 1, palladin, caldesmon 1, cortactin) were affected. CONCLUSIONS: This study demonstrated significant changes in proteome of engineered tendon derived from young and old tenocytes, indicating the impact of donor age on composition of autologous constructs. PMID- 29338717 TI - Risk factors for acute respiratory infections in children under five years attending the Bamenda Regional Hospital in Cameroon. AB - BACKGROUND: Acute respiratory infections (ARI) are a leading cause of morbidity and mortality in under-five children worldwide. About 6.6 million children less than 5 years of age die every year in the world; 95% of them in low-income countries and one third of the total deaths is due to ARI. This study aimed at determining the proportion of acute respiratory infections and the associated risk factors in children under 5 years visiting the Bamenda Regional Hospital in Cameroon. METHODS: A cross-sectional analytic study involving 512 children under 5 years was carried out from December 2014 to February 2015. Participants were enrolled by a consecutive convenient sampling method. A structured questionnaire was used to collect clinical, socio-demographic and environmental data. Diagnosis of ARI was based on the revised WHO guidelines for diagnosing and management of childhood pneumonia. The data was analyzed using the statistical software EpiInfoTM version 7. RESULTS: The proportion of ARIs was 54.7% (280/512), while that of pneumonia was 22.3% (112/512). Risk factors associated with ARI were: HIV infection ORadj 2.76[1.05-7.25], poor maternal education (None or primary only) ORadj 2.80 [1.85-4.35], exposure to wood smoke ORadj 1.85 [1.22-2.78], passive smoking ORadj 3.58 [1.45-8.84] and contact with someone who has cough ORadj 3.37 [2.21-5.14]. Age, gender, immunization status, breastfeeding, nutritional status, fathers' education, parents' age, school attendance and overcrowding were not significantly associated with ARI. CONCLUSION: The proportion of ARI is high and is associated with HIV infection, poor maternal education, exposure to wood smoke, passive cigarette smoking, and contact with persons having a cough. Control programs should focus on diagnosis, treatment and prevention of ARIs. PMID- 29338718 TI - A live cell assay of GPCR coupling allows identification of optogenetic tools for controlling Go and Gi signaling. AB - BACKGROUND: Animal opsins are light-sensitive G-protein-coupled receptors (GPCRs) that enable optogenetic control over the major heterotrimeric G-protein signaling pathways in animal cells. As such, opsins have potential applications in both biomedical research and therapy. Selecting the opsin with the best balance of activity and selectivity for a given application requires knowing their ability to couple to a full range of relevant Galpha subunits. We present the GsX assay, a set of tools based on chimeric Gs subunits that transduce coupling of opsins to diverse G proteins into increases in cAMP levels, measured with a real-time reporter in living cells. We use this assay to compare coupling to Gi/o/t across a panel of natural and chimeric opsins selected for potential application in gene therapy for retinal degeneration. RESULTS: Of the opsins tested, wild-type human rod opsin had the highest activity for chimeric Gs proxies for Gi and Gt (Gsi and Gst) and was matched in Go proxy (Gso) activity only by a human rod opsin/scallop opsin chimera. Rod opsin drove roughly equivalent responses via Gsi, Gso, and Gst, while cone opsins showed much lower activities with Gso than Gsi or Gst, and a human rod opsin/amphioxus opsin chimera demonstrated higher activity with Gso than with Gsi or Gst. We failed to detect activity for opsin chimeras bearing three intracellular fragments of mGluR6, and observed unexpectedly complex response profiles for scallop and amphioxus opsins thought to be specialized for Go. CONCLUSIONS: These results identify rod opsin as the most potent non selective Gi/o/t-coupled opsin, long-wave sensitive cone opsin as the best for selectively activating Gi/t over Go, and a rod opsin/amphioxus opsin chimera as the best choice for selectively activating Go over Gi/t. PMID- 29338719 TI - Preventing malaria in the Peruvian Amazon: a qualitative study in Iquitos, Peru. AB - BACKGROUND: In Peru, despite decades of concerted control efforts, malaria remains a significant public health burden. Peru has recently exhibited a dramatic rise in malaria incidence, impeding South America's progress towards malaria elimination. The Amazon basin, in particular the Loreto region of Peru, has been identified as a target for the implementation of intensified control strategies, aiming for elimination. No research has addressed why vector control strategies in Loreto have had limited impact in the past, despite vector control elsewhere being highly effective in reducing malaria transmission. This study employed qualitative methods to explore factors limiting the success of vector control strategies in the region. METHODS: Twenty semi-structured interviews were conducted among adults attending a primary care centre in Iquitos, Peru, together with 3 interviews with key informants (health care professionals). The interviews focussed on how local knowledge, together with social and cultural attitudes, determined the use of vector control methods. RESULTS: Five themes emerged. (a) Participants believed malaria to be embedded within their culture, and commonly blamed this for a lack of regard for prevention. (b) They perceived a shift in mosquito biting times to early evening, rendering night-time use of bed nets less effective. (c) Poor preventive practices were compounded by a consensus that malaria prevention was the government's responsibility, and that this reduced motivation for personal prevention. (d) Participants confused the purpose of space-spraying. (e) Participants' responses also exposed persisting misconceptions, mainly concerning the cause of malaria and best practices for its prevention. CONCLUSION: To eliminate malaria from the Americas, region-specific strategies need to be developed that take into account the local social and cultural contexts. In Loreto, further research is needed to explore the potential shift in biting behaviour of Anopheles darlingi, and how this interacts with the population's social behaviours and current use of preventive measures. Attitudes concerning personal responsibility for malaria prevention and long-standing misconceptions as to the cause of malaria and best preventive practices also need to be addressed. PMID- 29338720 TI - Manual exchange transfusion for severe imported falciparum malaria: a retrospective study. AB - BACKGROUND: This study was designed to evaluate the efficacy of exchange transfusion in patients with severe imported falciparum malaria. Twelve patients who met the diagnostic criteria for severe malaria were treated with exchange transfusion 14 times according to a conventional anti-malarial treatment. This study evaluated the efficacy of exchange transfusion for severe imported falciparum malaria. METHODS: Clinical data of severe imported falciparum malaria patients admitted to the intensive care unit (ICU) of Nantong Third People's Hospital from January 2007 to December 2016 were investigated in this retrospective study. Patients were divided into the intervention group, which received exchange transfusion, and the control group. This study assessed parasite clearance and outcomes of the two groups, and levels of erythrocytes, haemoglobin, platelets, coagulation, liver function, lactate, C-reactive protein, and procalcitonin, before and after exchange transfusion in the intervention group. RESULTS: There was no significant difference in the severity of admitted patients. Exchange transfusion was successfully applied 14 times in the intervention group. Differences in the levels of erythrocytes, haemoglobin and platelets did not reach statistical significance. Exchange transfusion improved coagulation, liver function, lactic acid, C-reactive protein, and procalcitonin. No differences were observed in parasite clearance, ICU and hospital length of stay, in-hospital mortality, and costs of hospitalization between the two groups. CONCLUSION: Exchange transfusion as adjunctive therapy for severe malaria was observed to be safe in this setting. Exchange transfusion can improve liver function and coagulation and reduce inflammation, but it failed to improve parasite clearance and the outcomes of severe imported falciparum malaria in this case series. PMID- 29338721 TI - Infectious keratoconjunctivitis in semi-domesticated Eurasian tundra reindeer (Rangifer tarandus tarandus): microbiological study of clinically affected and unaffected animals with special reference to cervid herpesvirus 2. AB - BACKGROUND: Infectious keratoconjunctivitis (IKC) is one of the most common ocular diseases in ruminants worldwide. In addition to keratitis and conjunctivitis, animals with IKC can develop uveitis, corneal ulcer, and in severe cases, blindness. The bacteria Moraxella spp. has been described as the primary causative agent of infectious bovine keratoconjunctivitis (IBK) in cattle (Bos taurus), while Chlamydia spp. and Mycoplasma conjunctivae are considered the main causative agents of IKC in sheep (Ovis aries). Previous studies indicated cervid herpesvirus 2 (CvHV2) as the primary causative agent of IKC in semi domesticated reindeer (Rangifer tarandus tarandus). The aim of the study was to investigate the presence and prevalence of potential pathogens for IKC in reindeer, and compare the ocular microbiota of animals with IKC, with apparently healthy animals. RESULTS: Semi-domesticated reindeer (n = 341), with (n = 108) or without (n = 113) ocular clinical signs, or with no information on clinical status (n = 120), were sampled in Norway, Sweden and Finland in 2010-2014. Seroprevalence was 37.4% for alphaherpesvirus (95/254), 3.8% for gammaherpesvirus (8/211) and 7.1% for pestivirus (15/211) (ELISA). PCR analyses of conjunctival swab samples revealed a prevalence of 28.5% for CvHV2 (57/200), 11.9% for Chlamydiaceae (16/135) and 1.0% for M. conjunctivae (2/197). Bacteriological cultivation of 202 conjunctival swab samples revealed bacterial growth from 75.2% of the samples, with Moraxella spp. being isolated from 21.6% (11/51) of the animals with and 5.6% (5/84) without ocular clinical signs. A significant association (p < 0.001) existed between the presence of clinical signs of IKC and CvHV2 DNA in the affected eyes, an association that was not present for other microorganisms. CONCLUSIONS: These results support the hypothesis that CvHV2 is the primary agent of IKC in semi-domesticated reindeer in Fennoscandia, with Moraxella bovoculi being a secondary candidate, since it was isolated in two different outbreaks of IKC. Further studies should be carried out to better understand the infection biology and the pathogenesis of IKC in reindeer. PMID- 29338722 TI - Development and pilot evaluation of a clinic-based mHealth app referral service to support adult cancer survivors increase their participation in physical activity using publicly available mobile apps. AB - BACKGROUND: Participation in regular physical activity holds key benefits for cancer survivors, yet few cancer survivors meet physical activity recommendations. This study aimed to develop and pilot test a mHealth app referral service aimed at assisting cancer survivors to increase their physical activity. In particular, the study sought to examine feasibility and acceptability of the service and determine preliminary efficacy for physical activity behaviour change. METHODS: A systematic search identified potentially appropriate Apple (iOS) and Android mHealth apps. The apps were audited regarding the type of physical activity encouraged, evidence-based behavioural strategies and other characteristics, to help match apps to users' preferences and characteristics. A structured service was devised to deliver the apps and counselling, comprising two face-to-face appointments with a mid-week phone or email check-up. The mHealth app referral service was piloted using a pre-post design among 12 cancer survivors. Participants' feedback regarding the service's feasibility and acceptability was sought via purpose-designed questionnaire, and analysed using inductive thematic analysis and descriptive statistics. Change in physical activity was assessed using a valid and reliable self-report tool and analysed using paired t-tests. In line with recommendations for pilot studies, confidence intervals and effect sizes were reported to aid interpretation of clinical significance, with an alpha of 0.2 used to denote statistical significance. RESULTS: Of 374 mHealth apps identified during the systematic search, 54 progressed to the audit (iOS = 27, Android = 27). The apps consistently scored well for aesthetics, engagement and functionality, and inconsistently for gamification, social and behaviour change features. Ten participants completed the pilot evaluation and provided positive feedback regarding the service's acceptability and feasibility. On average, participants increased their moderate-vigorous physical activity by 236 min per week (d = 0.73; 95% CI = -49 to 522; p = 0.09). CONCLUSION: This study offered initial evidence that a mHealth app referral service for cancer survivors is feasible and acceptable and may increase physical activity levels. The large increase in physical activity is promising, but should be interpreted with caution given the small sample size and lack of control group. Further research is warranted on a larger scale to investigate generalisability, long-term compliance and application in clinical settings. PMID- 29338723 TI - Preventing suicidal behaviours with a multilevel intervention: a cluster randomised controlled trial. AB - BACKGROUND: In the context of the recent surge in community based multilevel interventions for suicide prevention, all of which show promising results, we discuss the implications of the findings of such an intervention designed for and implemented in New Zealand. The multi-level intervention for suicide prevention in New Zealand (MISP-NZ) was a cluster randomised controlled community intervention trial involving eight hospital regions matched into four pairs and randomised to either the intervention or practice as usual (the control). Intervention regions received 25 months of interventions (01 June 2010 to 30 June 2012) including: 1) training in recognition of suicide risk factors; 2) workshops on mental health issues; 3) community based interventions (linking in with community events); and 4) distribution of print material and information on web based resources. RESULTS: There was no significant difference between the change in rate of suicidal behaviours (ISH or self-inflicted deaths) in the intervention group compared with the control group (rate ratio = 1.07, 95% CI 0.82, 1.38). CONCLUSIONS: This study did not provide substantive evidence that the MISP-NZ intervention had an effect on suicidal behaviours raising important questions about the potential effectiveness of the multilevel intervention model for suicide prevention for all countries. Although a range of factors may account for this unanticipated finding, including inadequate study power, differences in design and intervention focus, and country-specific contextual factors, it is possible that the effectiveness of the multilevel intervention model for reducing suicidal behaviours may have been overstated. TRIAL REGISTRATION: This trial was retrospectively registered on 11 April 2013. ACTRN12613000399796 . PMID- 29338724 TI - Development and validation of HPTLC fingerprints of three species of Alpinia with biomarker Galangin. AB - BACKGROUND: Alpinia galanga (L.) Willd. commonly called as Rasna, Greater galangal or Kulinjan is a medicinally important rhizome used in Indian traditional system of medicine to cure a number of ailments. A. galanga is the main source of a galangin -a medicinally important flavanol which has a number of pharmacological properties viz. anti-mutagenic, and anti-inflammatory. Due to the high demand for the rhizome of A. galanga traders are now substituting it with rhizomes of A. calcarata and A. officinarum. METHODS: The present study aims to develop high performance thin layer chromatographic (HPTLC) fingerprinting of A. galanga with its adulterants or substitutes and to quantify bioactive galangin present thereof. Methanolic extracts were obtained from rhizomes of the three species of Alpinia used for HPTLC analysis using silica gel 60 F254 plates and hexane: ethyl acetate: acetic acid (6.2: 2.8: 1.0 v/v/v); the densitometric analysis was performed at 272 nm. RESULTS: By comparison of Rf values and of the spectra of the bands with those of the standard galangin was identified in all three samples. HPTLC quantitative analysis of the methanolic extracts showed the decline trend in the quantity of the galangin in the three species of Alpinia as A. galanga (7.67 +/- 0.36 mg/g) > A. officinarum (5.77 +/- 0.71 mg/g) > A. calcarata (4.31 +/- 0.44 mg/g). The HPTLC method was validated using International Conference on Harmonization (ICH) guidelines. The HPTLC method showed good linearity, recovery and high precision of biomarker. CONCLUSIONS: Rapid and reproducible method is useful for routine analysis of galangin and quality control of Alpinia galangal along with its adulterants or substitutes. PMID- 29338725 TI - Herbal formula YGJDSJ inhibits anchorage-independent growth and induces anoikis in hepatocellular carcinoma Bel-7402 cells. AB - BACKGROUND: Based on clinical medications and related studies, we established a Yang-Gan Jie-Du Sang-Jie (YGJDSJ) herbal formula for hepatocarcinoma treatment. In present study, we evaluated the anti-cancer potential of YGJDSJ on suspension grown human hepatocellular carcinoma Bel-7402 cells. METHODS: Bel-7402 cells were cultured in poly(2-hydroxyethyl methacrylate) (poly-HEMA) coated plates and treated with YGJDSJ. Anchorage-independent cell growth was detected by cell Counting Kit-8 (CCK-8) assay and soft agar colony formation assay. Anoikis was detected by ethdium homodimer-1 (EthD-1) staining and flow cytometry analysis. Caspases activities were detected by the cleavage of chromogenic substrate. Reactive oxygen species (ROS) was detected by 2',7'-dichlorofluorescin diacetate (DCFH-DA) staining. Protein expression and phosphorylation was identified by western blot. Protein expression was knocked-down by siRNA. RESULTS: YGJDSJ inhibited the proliferation of Bel-7402 cells in poly-HEMA coated plates and anchorage-independent growth of Bel-7402 cells in soft agar. YGJDSJ also induced anoikis in Bel-7402 cells as indicated by EthD-1 staining and flow cytometry analysis. YGJDSJ activated caspase-3, - 8, and - 9 in suspension-grown Bel-7402 cells. The pan-caspase inhibitor Z-VAD-FMK significantly abrogated the effects of YGJDSJ on anoikis in suspension-grown Bel-7402 cells. In addition, YGJDSJ increased ROS in suspension-grown Bel-7402 cells. The ROS scavenger N-acetyl-L cysteine (NAC) partially attenuated YGJDSJ-induced activation of caspase-3, - 8 and - 9 and anoikis in suspension-grown Bel-7402 cells. Furthermore, YGJDSJ inhibited expression and phosphorylation of protein tyrosine kinase 2 (PTK2) in suspension-grown Bel-7402 cells. Over-expression of PTK2 significantly abrogated YGJDSJ induced anoikis. CONCLUSIONS: YGJDSJ inhibits anchorage-independent growth and induce caspase-mediated anoikis in Bel-7402 cells, and may relate to ROS generation and PTK2 downregulation. PMID- 29338726 TI - A case of blackwater fever with persistent Plasmodium falciparum parasitaemia detected by PCR after artemether-lumefantrine treatment. AB - BACKGROUND: Blackwater fever is a complication of malaria infection consisting of a syndrome of febrile intra-vascular haemolysis with severe anaemia and intermittent passage of dark-red to black colour urine. Despite numerous reports and studies of this condition, its pathogenesis remains incompletely understood. CASE PRESENTATION: This report describes a case of classic blackwater fever in a returning traveller, without prior history of malaria infection nor usage of anti malarial prophylaxis, treated with two courses of oral artemether-lumefantrine combination therapy. Unusual persistence of submicroscopic Plasmodium falciparum parasitaemia was detected by PCR for 18 days after initiation of treatment. CONCLUSION: To the authors' knowledge this is the first reported occurrence of a case of blackwater fever associated with prolonged submicroscopic parasitaemia. This unusual case challenges the current knowledge of the pathogenesis of this condition and opens questions that may have important diagnostic and treatment implications. PMID- 29338727 TI - Mendelian randomization analysis to assess a causal effect of haptoglobin on macroangiopathy in Chinese type 2 diabetes patients. AB - BACKGROUND: Haptoglobin (Hp) functions as an antioxidant by binding with haemoglobin. We investigated whether serum Hp has a causal effect on macroangiopathy via Mendelian randomization (MR) analysis with common variants of the Hp gene in Chinese patients with type 2 diabetes. METHODS: A total of 5687 type 2 diabetes patients were recruited and genotyped for the Hp gene. Clinical features and vascular imaging tests were applied to diagnose macroangiopathy. The association between common Hp genotypes and macroangiopathy was analyzed in the whole population. Serum Hp levels were measured by enzyme-linked immunosorbent assay in a subset of 935 patients. We individually analyzed the correlations among Hp levels, Hp genotypes and macroangiopathy. Further, 8-hydroxy-2' deoxyguanosine (8-OHdG), an oxidative marker of DNA damage, was examined to evaluate the levels of oxidative stress. RESULTS: Common Hp genotypes were correlated with macroangiopathy (OR = 1.140 [95% CI 1.005-1.293], P = 0.0410 for the Hp 1 allele). Serum Hp levels were associated with both common Hp genotypes (P = 3.55 * 10-31) and macroangiopathy (OR = 2.123 [95% CI 1.098-4.102], P = 0.0252) in the subset of 935 patients. In the MR analysis, the directional trends of the observed and predicted relationships between common Hp genotypes and macroangiopathy were the same (OR 1.357 and 1.130, respectively). Furthermore, common Hp genotypes and Hp levels were associated with serum 8-OHdG levels (P = 0.0001 and 0.0084, respectively). CONCLUSIONS: Our study provides evidence for a causal relationship between serum Hp levels and macroangiopathy in Chinese type 2 diabetes patients by MR analysis. PMID- 29338728 TI - Re-evaluation of the definition of remission on the 17-item Hamilton Depression Rating Scale based on recovery in health-related quality of life in an observational post-marketing study. AB - BACKGROUND: Although a score of less than 7 for the 17-item Hamilton Depression Rating Scale (HAM-D17) has been widely adopted to define remission of depression, a full recovery from depression is closely related to the patient's quality of life as well. Accordingly, we re-evaluated this definition of remission using HAM D17 in comparison with the corresponding score for health-related quality of life (HRQOL) measured by the SF-36. METHODS: Using the data for depressive patients reported by GlaxoSmithKline K.K. (Study No. BRL29060A/863) in a post-marketing observational study of paroxetine, with a sample size of n = 722, multivariate logistic regression was performed with the HAM-D17 score as a dependent variable and with each of the eight domain scores of HRQOL (from the SF-36) transformed into a binominal form according to the national standard value for Japan. Then, area under curve of receiver operating characteristic analyses were conducted. Based on the obtained results, a multivariate analysis was performed using the HAM-D17 score in a binomial form with HAM-D17 as a dependent variable and with each of the eight HRQOL domain scores (SF-36) as binominalized independent variables. RESULTS: A cutoff value for the HAM-D17 score of 5 provided the maximum ROC-AUC at "0.864." The significantly associated scores of the eight HRQOL domains (SF-36) were identified for the HAM-D17 cutoff values of >=5 and <=4. The scores for physical functioning (odds ratio, 0.473), bodily pain (0.557), vitality (0.379), social functioning (0.540), role-emotion (0.265), and mental health (0.467) had a significant negative association with the HAM-D17 score (p < 0.05), and HRQOL domain scores for HAM-D17 >= 5 were significantly lower compared with those for HAM-D17 <= 4. CONCLUSIONS: A cutoff value for HAM D17 of less than or equal to 4 was the best candidate for indicating remission of depression when the recovery of HRQOL is considered. Restoration of social function and performance should be considered equally important in assessing the adequacy of treatment for patients with depression. PMID- 29338729 TI - Computational study of the effects of arterial bifurcation on the temperature distribution during cryosurgery. AB - BACKGROUND: Thermally significant blood flows into locally cooled diseased tissues and warm them during cryosurgery so that the iceball is often hard to cover the whole diseased volume. This paper is aimed at investigating the effects of large arterial bifurcation on the temperature distribution during cryosurgery through simulation method. METHODS: A parametric geometry model is introduced to construct a close-to-real arterial bifurcation. The three-dimensional transient conjugate heat transfer between bifurcated artery and solid tissues with phase change during cryosurgery is performed by finite volume method. RESULTS: The discussion was then made on the effects of the relative position between cryoprobe and artery bifurcation, the inlet velocity of root artery and the layout of multiple cryoprobes on the temperature distribution and iceball evolution. The results show that the thermal interaction between blood flow and iceball growth near bifurcation is considerable complex. The thermal effects of bifurcation could modulate the iceball morphology, severely weaken its freezing volume and prevent the blood vessel from being frozen. CONCLUSION: The present work is expected to be valuable in optimizing cryosurgery scheme of the situation that the bifurcated artery is embedded into the disease tissue. PMID- 29338730 TI - Factors associated with HIV positive sero-status among exposed infants attending care at health facilities: a cross sectional study in rural Uganda. AB - BACKGROUND: East and South Africa contributes 59% of all pediatric HIV infections globally. In Uganda, HIV prevalence among HIV exposed infants was estimated at 5.3% in 2014. Understanding the remaining bottlenecks to elimination of mother-to child transmission (eMTCT) is critical to accelerating efforts towards eMTCT. This study determined factors associated with HIV positive sero-status among exposed infants attending mother-baby care clinics in rural Kasese so as to inform enhancement of interventions to further reduce MTCT. METHODS: This was a cross-sectional mixed methods study. Quantitative data was derived from routine service data from the mother's HIV care card and exposed infant clinical chart. Key informant interviews were conducted with health workers and in-depth interviews with HIV infected mothers. Quantitative data was analyzed using Stata version 12. Logistic regression was used to determine factors associated with HIV sero-status. Latent content analysis was used to analyse qualitative data. RESULTS: Overall, 32 of the 493 exposed infants (6.5%) were HIV infected. Infants who did not receive ART prophylaxis at birth (AOR = 4.9, 95% CI: 1.901-13.051, p=0.001) and those delivered outside of a health facility (AOR = 5.1, 95% CI: 1.038 - 24.742, p = 0.045) were five times more likely to be HIV infected than those who received prophylaxis and those delivered in health facilities, respectively. Based on the qualitative findings, health system factors affecting eMTCT were long waiting time, understaffing, weak community follow up system, stock outs of Neverapine syrup and lack of HIV testing kits. CONCLUSION: Increasing facility based deliveries and addressing underlying health system challenges related to staffing and availability of the required commodities may further accelerate eMTCT. PMID- 29338731 TI - Effective nationwide school-based participatory extramural program on adolescent body mass index, health knowledge and behaviors. AB - BACKGROUND: Adolescent obesity is a major public health concern. Open to all high school students regardless of weight status, HealthCorps is a nationwide program offering a comprehensive high school-based participatory educational program to indirectly address obesity. We tested a hypothesis that the HealthCorps program would decrease BMI z-scores among overweight or obese students, and reduce obesity rates, and evaluated its effects on health knowledge and behaviors. METHODS: HealthCorps aimed to improve student knowledge and behaviors regarding nutrition quality, physical activity, sleep, breakfast intake, and mental resilience. Participating students received through HealthCorps coordinators weekly or bi-weekly classroom lessons either for a semester or a year in addition to various during- and after-school health-promoting activities and mentorship. Self-reported height and weight were collected along with questionnaires assessing knowledge and behaviors during 2013-2014 academic year among 14 HealthCorps-participating New York City high schools. This quasi experimental two arm pre-post trial included 611 HealthCorps and 221 comparison arm students for the analytic sample. Sex-specific analyses stratified by weight status were adjusted for age and Hispanic ethnicity with clustering effects of schools and students taken into account. RESULTS: HealthCorps female overweight/obese and obese student had a significant decrease in BMI z-scores (post-pre delta BMI z score = -0.16 (95%CI = (-0.26, -0.05), p = 0.004 for the former; and = -0.23 ( 0.44, -0.03), p = 0.028, for the latter) whereas comparison female counterparts did not. The HealthCorps students, but not the comparison students, had a significant increase for all knowledge domains except for the breakfast realm, and reported a greater number of significant behavior changes including fruit and vegetable intake and physical activities. CONCLUSIONS: The HealthCorps program was associated with reduced BMI z-score in overweight/obese and obese female adolescents, with enhanced health knowledge and behavior for both sexes. With its wide reach, this may be a promising program to help combat adolescent obesity in schools. TRIAL REGISTRATION: This study is registered as a clinical trial at the ClinicalTrials.gov registry with trial number NCT02277496 on September 10, 2014 (Retrospectively registered). PMID- 29338732 TI - Transcriptional profile and Epstein-Barr virus infection status of laser-cut immune infiltrates from the brain of patients with progressive multiple sclerosis. AB - BACKGROUND: It is debated whether multiple sclerosis (MS) might result from an immunopathological response toward an active Epstein-Barr virus (EBV) infection brought into the central nervous system (CNS) by immigrating B cells. Based on this model, a relationship should exist between the local immune milieu and EBV infection status in the MS brain. To test this hypothesis, we analyzed expression of viral and cellular genes in brain-infiltrating immune cells. METHODS: Twenty three postmortem snap-frozen brain tissue blocks from 11 patients with progressive MS were selected based on good RNA quality and prominent immune cell infiltration. White matter perivascular and intrameningeal immune infiltrates, including B cell follicle-like structures, were isolated from brain sections using laser capture microdissection. Enhanced PCR-based methods were used to investigate expression of 75 immune-related genes and 6 EBV genes associated with latent and lytic infection. Data were analyzed using univariate and multivariate statistical methods. RESULTS: Genes related to T cell activation, cytotoxic cell mediated (or type 1) immunity, B cell growth and differentiation, pathogen recognition, myeloid cell function, type I interferon pathway activation, and leukocyte recruitment were found expressed at different levels in most or all MS brain immune infiltrates. EBV genes were detected in brain samples from 9 of 11 MS patients with expression patterns suggestive of in situ activation of latent infection and, less frequently, entry into the lytic cycle. Comparison of data obtained in meningeal and white matter infiltrates revealed higher expression of genes related to interferongamma production, B cell differentiation, cell proliferation, lipid antigen presentation, and T cell and myeloid cell recruitment, as well as more widespread EBV infection in the meningeal samples. Multivariate analysis grouped genes expressed in meningeal and white matter immune infiltrates into artificial factors that were characterized primarily by genes involved in type 1 immunity effector mechanisms and type I interferon pathway activation. CONCLUSION: These results confirm profound in situ EBV deregulation and suggest orchestration of local antiviral function in the MS brain, lending support to a model of MS pathogenesis that involves EBV as possible antigenic stimulus of the persistent immune response in the central nervous system. PMID- 29338733 TI - Effect of metatarsal osteotomy and open lateral soft tissue procedure on sesamoid position: radiological assessment. AB - BACKGROUND: Incomplete sesamoid reduction is a potential risk factor for the recurrence of hallux valgus. The purpose of this study was to radiologically investigate changes in sesamoid position after chevron osteotomy and the open lateral soft tissue procedure. METHODS: Sixty-eight feet that underwent operative correction for hallux valgus deformity were reviewed consecutively. The hallux valgus angle (HVA), first to second intermetatarsal angle (IMA), tibial sesamoid position (TSP), distance of the fibular sesamoid (DFS), and translation of the metatarsal head (TMH) were evaluated preoperatively and at final follow-up. RESULTS: While most parameters were significantly decreased after surgery, no significant change in DFS (correction - 1.45 mm, p = 0.08) was noted. The difference between preoperative and postoperative TSP values (DeltaTSP) has a moderately positive correlation with difference in TMH values (DeltaTMH) (Rho 0.475, p = .000). Other parameters were similarly correlated. CONCLUSIONS: First, metatarsal bone realignment reduced the sesamoid, but its position, relative to the second metatarsal axis (DFS), was unchanged. The sesamoid is reduced by the lateral translation of the first metatarsal but not by medial sesamoid migration. PMID- 29338734 TI - Comparing the benefits of chemoradiotherapy and chemotherapy for resectable stage III A/N2 non-small cell lung cancer: a meta-analysis. AB - BACKGROUND: Induction chemotherapy has been shown to improve survival of patients with stage III A/N2 (T1-3, N2, M0) non-small cell lung cancer (NSCLC), followed by resection, but the benefits of neoadjuvant radiotherapy still remain controversial. METHODS: PubMed, Embase, and Cochrane library databases were searched for relevant randomized controlled trials (RCTs) comparing the outcomes of induction chemoradiotherapy over induction chemotherapy, in patients with resectable stage IIIA/N2 NSCLC. Odds ratios (ORs) with corresponding 95% confidence intervals (95% CIs) were calculated using random- or fixed-effects model, and heterogeneity was assessed using I2 test. Publication bias was examined by funnel plots analysis. RESULTS: A total of three RCTs met the inclusion criteria of our meta-analysis. The pooled results demonstrated that, in comparison to induction chemotherapy, induction chemoradiotherapy has a significant benefit in tumor response, mediastinal downstaging, and pathological complete response of mediastinal lymph nodes. In addition, no more peri intervention mortality was detected in patients from chemoradiotherapy group, and a higher number of patients from this group had R0 resection. However, our results did not show any difference between overall survival and progression-free survival after 2, 4, and 6 years of follow-ups, in patients undergoing radiation therapy vs. induction chemotherapy. CONCLUSION: Preoperative chemoradiotherapy, as compared to induction chemotherapy alone, is associated with similar peri intervention mortality, a greater tumor response, mediastinal nodule downstaging, and rate of R0 resection, but does not improve survival of resectable stage IIIA/N2 NSCLC patients. PMID- 29338735 TI - Mental health service utilization is associated with retention in care among persons living with HIV at a university-affiliated HIV clinic. AB - BACKGROUND: Mental health (MH) comorbidities reduce retention in care for persons living with HIV (PLWH) and are associated with poor health outcomes. Optimizing retention in primary care is vital, as poor retention is associated with delayed receipt of antiretroviral (ARV) therapy, ARV non-adherence, and poor health outcomes, including failure to suppress viral load, decreased CD4 counts, and clinically significant ARV drug resistance. We hypothesized that MH service utilization would be associated with improved retention in care for patients with HIV and MH comorbidities. METHODS: This is a retrospective analysis of PLWH initiating outpatient HIV health care at a university-affiliated HIV clinic between January 2007 and December 2013. We examined the association between MH service utilization and retention in care, the outcome of interest, using univariate and multivariable logistic regression. RESULTS: Overall, 627 (84.4%) out of 743 patients were retained in care using the Health Resources & Services Administration HIV/AIDS Bureau (HRSA/HAB) metric. A multivariable model adjusted for several sociodemographic factors, MH comorbidities, and MH service utilization. The results suggest that lack of health insurance (public ORadj = 0.3, p < 0.01; no insurance ORadj = 0.4, p < 0.01) and >= 3 MH comorbidities (ORadj = 0.3, P = 0.01) were associated with decreased retention in care. Conversely, older age (> 45 years, ORadj. = 1.6, p = 0.14) and >= 3 MH service utilization visits (ORadj. = 6.8, p < 0.01) were associated with increased retention in care. CONCLUSIONS: Even in the absence of documented MH comorbidities, improved retention in care was observed with increasing MH service utilization. In order to achieve the US-based National HIV/AIDS Strategy goal of 90% retention in care for PLWH, MH service utilization should be considered along with other evidence-based interventions to improve retention for PLWH newly engaged in care. PMID- 29338736 TI - Spatial panorama of malaria prevalence in Africa under climate change and interventions scenarios. AB - BACKGROUND: Malaria is highly sensitive to climatic variables and is strongly influenced by the presence of vectors in a region that further contribute to parasite development and sustained disease transmission. Mathematical analysis of malaria transmission through the use and application of the value of the basic reproduction number (R0) threshold is an important and useful tool for the understanding of disease patterns. METHODS: Temperature dependence aspect of R0 obtained from dynamical mathematical network model was used to derive the spatial distribution maps for malaria transmission under different climatic and intervention scenarios. Model validation was conducted using MARA map and the Annual Plasmodium falciparum Entomological Inoculation Rates for Africa. RESULTS: The inclusion of the coupling between patches in dynamical model seems to have no effects on the estimate of the optimal temperature (about 25 degrees C) for malaria transmission. In patches environment, we were able to establish a threshold value (about alpha = 5) representing the ratio between the migration rates from one patch to another that has no effect on the magnitude of R0. Such findings allow us to limit the production of the spatial distribution map of R0 to a single patch model. Future projections using temperature changes indicated a shift in malaria transmission areas towards the southern and northern areas of Africa and the application of the interventions scenario yielded a considerable reduction in transmission within malaria endemic areas of the continent. CONCLUSIONS: The approach employed here is a sole study that defined the limits of contemporary malaria transmission, using R0 derived from a dynamical mathematical model. It has offered a unique prospect for measuring the impacts of interventions through simple manipulation of model parameters. Projections at scale provide options to visualize and query the results, when linked to the human population could potentially deliver adequate highlight on the number of individuals at risk of malaria infection across Africa. The findings provide a reasonable basis for understanding the fundamental effects of malaria control and could contribute towards disease elimination, which is considered as a challenge especially in the context of climate change. PMID- 29338737 TI - Transcriptome profiling of whitefly guts in response to Tomato yellow leaf curl virus infection. AB - BACKGROUND: Plant viruses in agricultural crops are of great concern worldwide, and over 75% of them are transmitted from infected to healthy plants by insect vectors. Tomato yellow leaf curl virus (TYLCV) is a begomovirus, which is the largest and most economically important group of plant viruses, transmitted by the whitefly Bemisia tabaci. The circulation of TYLCV in the insect involves complex insect-virus interactions, whereas the molecular mechanisms of these interactions remain ambiguous. The insect gut as a barrier for viral entry and dissemination is thought to regulate the vector specificity. However, due to its tiny size, information for the responses of whitefly gut to virus infection is limited. METHODS: We investigated the transcriptional response of the gut of B. tabaci Middle East-Asia Minor 1 species to TYLCV infection using Illumina sequencing. RESULTS: A total of 5207 differentially expressed genes (DEGs) between viruliferous and non-viruliferous whitefly guts were identified. Enrichment analyses showed that cargo receptor and ATP-binding cassette (ABC) transporters were enriched in DEGs, and might help the virus to cross gut barrier. TYLCV could perturb cell cycle and DNA repair as a possible result of its replication in the whitefly. Our data also demonstrated that TYLCV can activate whitefly defense responses, such as antimicrobial peptides. Meanwhile, a number of genes involved in intracellular signaling were activated by TYLCV infection. CONCLUSIONS: Our results reveal the complex insect-virus relationship in whitefly gut and provide substantial molecular information for the role of insect midguts in virus transmission. PMID- 29338738 TI - Rapid HIV disease progression following superinfection in an HLA-B*27:05/B*57:01 positive transmission recipient. AB - BACKGROUND: The factors determining differential HIV disease outcome among individuals expressing protective HLA alleles such as HLA-B*27:05 and HLA-B*57:01 remain unknown. We here analyse two HIV-infected subjects expressing both HLA B*27:05 and HLA-B*57:01. One subject maintained low-to-undetectable viral loads for more than a decade of follow up. The other progressed to AIDS in < 3 years. RESULTS: The rapid progressor was the recipient within a known transmission pair, enabling virus sequences to be tracked from transmission. Progression was associated with a 12% Gag sequence change and 26% Nef sequence change at the amino acid level within 2 years. Although next generation sequencing from early timepoints indicated that multiple CD8+ cytotoxic T lymphocyte (CTL) escape mutants were being selected prior to superinfection, < 4% of the amino acid changes arising from superinfection could be ascribed to CTL escape. Analysis of an HLA-B*27:05/B*57:01 non-progressor, in contrast, demonstrated minimal virus sequence diversification (1.1% Gag amino acid sequence change over 10 years), and dominant HIV-specific CTL responses previously shown to be effective in control of viraemia were maintained. Clonal sequencing demonstrated that escape variants were generated within the non-progressor, but in many cases were not selected. In the rapid progressor, progression occurred despite substantial reductions in viral replicative capacity (VRC), and non-progression in the elite controller despite relatively high VRC. CONCLUSIONS: These data are consistent with previous studies demonstrating rapid progression in association with superinfection and that rapid disease progression can occur despite the relatively the low VRC that is typically observed in the setting of multiple CTL escape mutants. PMID- 29338739 TI - Interventions for preventing or treating malnutrition in homeless problem drinkers: a systematic review. AB - BACKGROUND: Excessive drinking leads to poor absorption of nutrients and homeless problem-drinkers often have nutritionally inadequate diets. Depletion of nutrients such as vitamin B1 can lead to cognitive impairment, which can hinder efforts to reduce drinking or engage with services. This review aimed to assess effectiveness of interventions designed to prevent or treat malnutrition in homeless problem-drinkers. METHODS: We systematically searched nine electronic databases and 13 grey literature sources for studies evaluating interventions to improve nutrition in homeless populations, without regional or language restrictions. Screening for inclusion was done in duplicate. One reviewer extracted data and assessed risk of bias, and another checked the extractions. Primary outcomes were nutrition status/deficiency, liver damage, and cognitive function. Secondary outcomes included abstinence, comorbidities, resource use, acceptability and engagement with intervention. Results were synthesised narratively. RESULTS: We included 25 studies (2 Randomised Controlled Trials; 15 uncontrolled before and after; 7 surveys; 1 case-control). Nine studies evaluated educational and support interventions, five food provision, and three supplement provision. Eight studies evaluated a combination of these interventions. No two interventions were the same, and all studies were at high risk of bias. Nutritional status (intake/ deficiency) were reported in 11 studies and liver function in one. Fruit and vegetable intake improved with some education and support interventions (n = 4 studies) but not others (n = 2). Vitamin supplements appeared to improve vitamin deficiency levels in the blood (n = 2). Free or subsidised meals (n = 4) and food packs (n = 1) did not always fulfil dietary needs, but were usually considered acceptable by users. Some multicomponent interventions improved nutrition (n = 3) but acceptability varied (n = 3). No study reported cost effectiveness. CONCLUSIONS: The evidence for any one intervention for improving malnutrition in homeless problem-drinkers was based on single studies at high risk of bias. Various food and supplement provision interventions appear effective in changing nutritional status in single studies. Educational and multicomponent interventions show improved nutritional behaviour in some studies but not others. Further better quality evidence is required before these interventions can be recommended for implementation. Any future studies should seek the end user input in their design and conduct. TRIAL REGISTRATION: Registered with PROSPERO: CRD42015024247 . PMID- 29338740 TI - Is sweat testing for cystic fibrosis feasible in patients with down syndrome? AB - BACKGROUND: Recurrent airway infections are common in patients with Down's syndrome (DS). Hence, ruling out Cystic Fibrosis (CF) in these patients is often required. In the past, the value of sweat testing - the gold standard to diagnose CF - has been questioned in DS as false positive results have been reported. However, these reports are based on measurements of sweat osmolality or sodium concentrations, not chloride concentrations. This study analyses sweat secretion rate and chloride concentration in sweat samples of patients with DS in comparison to healthy controls. METHODS: We assessed sweat samples in 16 patients with DS and 16 healthy controls regarding sweat secretion rate (SSR) and sweat chloride concentration. RESULTS: All measured chloride concentrations were within the normal range. The chloride concentrations were slightly, but not significantly lower in patients with DS (15,54 mmol/l (+/-4,47)) compared to healthy controls (18,31 mmol/l (+/-10,12)). While no gender gap in chloride concentration could be found, chloride concentration increased with age in both groups. Insufficient sweat was collected in 2 females with DS (12.5% of the study group) but not in an individual of the control group. A significant lower sweat secretion rate was found in the DS group (27,6 MUl/30 min (+/- 12,18)) compared to the control group (42,7 MUl/30 min (+/- 21,22)). In a sub-analysis, female patients produced significantly less sweat (20,8 +/- 10,6 MUl/30 min) than male patients with DS (36,4 +/- 7,8 MUl/30 min), which accounts for the difference between patients and controls. Furthermore, while the sweating secretion rate increased with age in the control group, it did not do so in the DS group. Once again this was due to female patients with DS, who did not show a significant increase of sweat secretion rate with age. CONCLUSIONS: Sweat chloride concentrations were within the normal range in patients with DS and therefore seem to be a reliable tool for testing for CF in these patients. Interestingly, we found a reduced sweat secretion rate in the DS group. Whether the last one has a functional and clinical counterpart, possibly due to a disturbed thermoregulation in DS patients, requires further investigation. PMID- 29338741 TI - Knowledge and practices of general practitioners at district hospitals towards cervical cancer prevention in Burundi, 2015: a cross-sectional study. AB - BACKGROUND: Well-organized screening and treatment programmes are effective to prevent Invasive Cervical Cancer (ICC) in LMICs. To achieve this, the World Health Organization (WHO) recommends the involvement of existing health personnel in casu doctors, nurses, midwives in ICC prevention. A necessary precondition is that health personnel have appropriate knowledge about ICC. Therefore, to inform policy makers and training institutions in Burundi, we documented the knowledge and practices of general practitioners (GPs) at district hospital level towards ICC control. METHODS: A descriptive cross-sectional survey was conducted from February to April, 2015 among all GPs working in government district hospitals. A structured questionnaire and a scoring system were used to assess knowledge and practices of GPs. RESULTS: The participation rate was 58.2%. Majority of GPs (76.3%) had appropriate knowledge (score > 70%) on cervical cancer disease; but some risk factors were less well known as smoking and the 2 most important oncogenic HPV. Only 8.4% of the participants had appropriate knowledge on ICC prevention: 55% of the participants were aware that HPV vaccination exists and 48.1% knew cryotherapy as a treatment method for CIN. Further, 15.3% was aware of VIA as a screening method. The majority of the participants (87%) never or rarely propose screening tests to their clients. Only 2 participants (1.5%) have already performed VIA/VILI. Wrong thoughts were also reported: 39.7% thought that CIN could be treated with radiotherapy; 3.1% thought that X-ray is a screening method. CONCLUSION: In this comprehensive assessment, we observed that Burundian GPs have a very low knowledge level about ICC prevention, screening and treatment. Suboptimal practices and wrong thoughts related to ICC screening and treatments have also been documented. We therefore recommend an adequate pre- and in-service training of GPs and most probably nurses on ICC control before setting up any public health intervention on ICC control. PMID- 29338742 TI - M2-polarized tumor-associated macrophages facilitated migration and epithelial mesenchymal transition of HCC cells via the TLR4/STAT3 signaling pathway. AB - BACKGROUND: M2-polarized macrophages are tumor-associated-macrophages (TAMs), which are important contents of tumor-infiltrating immune cells. Toll-like receptor 4 (TLR4) is a molecular biomarker of tumor aggressiveness and poor prognosis. Toll-like receptors (TLRs) have important roles in the immune system and M2-polarized macrophages. However, the effects of TLR4 on M2-polarized macrophages in hepatocellular carcinoma (HCC) are unknown. Here, TLR4 expressed on HCC cells mediates the pro-tumor effects and mechanisms of M2-polarized macrophages. METHODS: THP-1 cells were induced to differentiate into M2-like macrophages through treatments with IL-4, IL-13, and phorbol myristate acetate (PMA). We used the HCC cell lines SMMC-7721 and MHCC97-H cultured in conditioned medium from M2-like macrophages (M2-CM) to investigate the migration potential of HCC cells and epithelial-mesenchymal transition (EMT)-associated molecular genetics. Signaling pathways that mediated M2-CM-promoted HCC migration were detected using western blotting. RESULTS: HCC cells cultured with M2-CM displayed a fibroblast-like morphology, an increased metastatic capability, and expression of EMT markers. TLR4 expression was markedly increased in M2-CM-treated HCC cells. TLR4 overexpression promoted HCC cell migration, and a TLR4-neutralizing antibody markedly inhibited HCC EMT in cells cultured with M2-CM. Furthermore, the TLR4/(signal transducer and activator of transcription 3 (STAT3) signaling pathway contributed to the effects of M2-CM on HCC cells. CONCLUSIONS: Taken together, M2-polarized macrophages facilitated the migration and EMT of HCC cells via the TLR4/STAT3 signaling pathway, suggesting that TLR4 may be a novel therapeutic target. These results improve our understanding of M2-polarized macrophages. PMID- 29338743 TI - The prospective and concurrent effect of exercise on health related quality of life in older adults over a 3 year period. AB - BACKGROUND: It is not clear whether socioeconomic status influences health outcomes among older adults through its effect on physical activity. The aim of this study was to assess the effect of sex and neighborhood socio-economic status on the change in health related quality of life (HR-QOL) as a function of physical activity over a three-year period. METHODS: This cohort study included French-speaking community-dwelling older adults recruited in primary care practices in the province of Quebec and participating in the 'Etude sur la Sante des Aines' (ESA)-Services study on the health of the elderly. Primary care practices were recruited through participating general practitioners (GPs) working full-time in the health administrative region. A stratified sample was comprised of various types of primary care practices (family medicine group, local community health services centers, primary care practices with less than 3 GPs, and with at least 3 GPs). In this study sample, 967 participants with scores >=26 on the Mini Mental State Examination (MMSE) were included and followed for 3 years to study HR-QOL as a function of reported exercise at baseline and follow up, controlling for study variables. Analyses were also carried out to study the effect of change in reported exercise at follow-up with respect to baseline and categorised as follows: no change, decrease in exercise and increase in exercise. The interaction terms area of residence socio-economic status*exercise and sex*exercise, were tested. RESULTS: Exercise at baseline did not significantly predict HR-QOL at follow-up when adjusting for all other study variables. Exercise at follow-up was cross-sectionally associated with follow-up HR-QOL. Participants reporting never exercising and those reporting a decrease in exercise reported a lower HR-QOL at follow-up, when controlling for all other study variables. There was no interaction between exercise and sex and socioeconomic status. CONCLUSIONS: For healthy ageing, maintaining and increasing physical activity throughout the years is necessary for improved HR-QOL. Past physical activity does not confer protection against future decline of HR-QOL. Future research should focus on potential moderating and mediating psycho-social barriers associated with exercising in older age populations. PMID- 29338744 TI - New insights in the relative radiobiological effectiveness of proton irradiation. AB - BACKGROUND: Proton radiotherapy is a form of charged particle therapy that is preferentially applied for the treatment of tumors positioned near to critical structures due to their physical characteristics, showing an inverted depth-dose profile. The sparing of normal tissue has additional advantages in the treatment of pediatric patients, in whom the risk of secondary cancers and late morbidity is significantly higher. Up to date, a fixed relative biological effectiveness (RBE) of 1.1 is commonly implemented in treatment planning systems with protons in order to correct the physical dose. This value of 1.1 comes from averaging the results of numerous in vitro experiments, mostly conducted in the middle of the spread-out Bragg peak, where RBE is relatively constant. However, the use of a constant RBE value disregards the experimental evidence which clearly demonstrates complex RBE dependency on dose, cell- or tissue type, linear energy transfer and biological endpoints. In recent years, several in vitro studies indicate variations in RBE of protons which translate to an uncertainty in the biological effective dose delivery to the patient. Particularly for regions surrounding the Bragg peak, the more localized pattern of energy deposition leads to more complex DNA lesions. These RBE variations of protons bring the validity of using a constant RBE into question. MAIN BODY: This review analyzes how RBE depends on the dose, different biological endpoints and physical properties. Further, this review gives an overview of the new insights based on findings made during the last years investigating the variation of RBE with depth in the spread out Bragg peak and the underlying differences in radiation response on the molecular and cellular levels between proton and photon irradiation. Research groups such as the Klinische Forschergruppe Schwerionentherapie funded by the German Research Foundation (DFG, KFO 214) have included work on this topic and the present manuscript highlights parts of the preclinical work and summarizes the research activities in this context. SHORT CONCLUSION: In summary, there is an urgent need for more coordinated in vitro and in vivo experiments that concentrate on a realistic dose range of in clinically relevant tissues like lung or spinal cord. PMID- 29338745 TI - Study of correlation between wall shear stress and elasticity in atherosclerotic carotid arteries. AB - OBJECTIVE: This paper presents the use of the texture matching method to measure the rabbit carotid artery elasticity value of the experimental group and control group respectively. It compares the experimental rabbits, when they are prompted by pathological histology to be at the period of carotid atherosclerosis fatty streaks and fiber plaques, with the control group. METHODS: We have used ultrasound linear array probe for scanning the rabbit carotid arteries. This allows us to obtain the wall shear stress (WSS) and the elasticity values in the atherosclerotic arteries. Using statistical analysis, we are able to clarify whether the texture matching method can diagnose atherosclerosis at the early stage. We also analyze the rabbit carotid artery elasticity and WSS values to make sure whether there is a correlation between both. Combining the texture matching method with the WSS quantitative analysis in the future can enable better prediction of the occurrence and development of atherosclerosis by using noninvasive medical imaging techniques. RESULTS: This study has confirmed that from the 2nd to the 10th week, with the development of atherosclerosis, the arterial WSS reduction has a negative correlation with the increasing of artery wall elasticity, which means that as the arterial WSS decreases the arterial wall becomes less elastic. Correlating shear stress with atherosclerosis can clarify that WSS can be used as one of the effective parameters of early diagnosis of atherosclerosis. CONCLUSION: In summary, we have found that the elasticity value can reflect the degree of atherosclerosis more objectively. Therefore, by using noninvasive imaging, the quantitative analysis of shear stress and combined with texture matching method can assist in the early diagnosis of atherosclerosis. PMID- 29338746 TI - Cost of diabetes mellitus in Africa: a systematic review of existing literature. AB - BACKGROUND: There is an increasing recognition that non communicable diseases impose large economic costs on households, societies and nations. However, not much is known about the magnitude of diabetes expenditure in African countries and to the best of our knowledge no systematic assessment of the literature on diabetes costs in Africa has been conducted. The aim of this paper is to capture the evidence on the cost of diabetes in Africa, review the methods used to calculate costs and identify areas for future research. METHODS: A desk search was conducted in Pubmed, Medline, Embase, and Science direct as well as through other databases, namely Google Scholar. The following eligibility criteria were used: peer reviewed English articles published between 2006 and 2016, articles that reported original research findings on the cost of illness in diabetes, and studies that covered at least one African country. Information was extracted using two data extraction sheets and results organized in tables. Costs presented in the studies under review are converted to 2015 international dollars prices (I$). RESULTS: Twenty six articles are included in this review. Annual national direct costs of diabetes differed between countries and ranged from I$3.5 billion to I$4.5 billion per annum. Indirect costs per patient were generally higher than the direct costs per patient of diabetes. Outpatient costs varied by study design, data source, perspective and healthcare cost categories included in the total costs calculation. The most commonly included healthcare items were drug costs, followed by diagnostic costs, medical supply or disposable costs and consultation costs. In studies that reported both drug costs and total costs, drug costs took a significant portion of the total costs per patient. The highest burden due to the costs associated with diabetes was reported in individuals within the low income group. CONCLUSION: Estimation of the costs associated with diabetes is crucial to make progress towards meeting the targets laid out in Sustainable Development Goal 3 set for 2030. The studies included in this review show that the presence of diabetes leads to elevated costs of treatment which further increase in the presence of complications. The cost of drugs generally contributed the most to total direct costs of treatment. Various methods are used in the estimation of diabetes healthcare costs and the costs estimated between countries differ significantly. There is room to improve transparency and make the methodologies used standard in order to allow for cost comparisons across studies. PMID- 29338747 TI - Oxidative stress predicts cognitive decline with aging in healthy adults: an observational study. AB - BACKGROUND: Redox signaling, which can be assessed by circulating aminothiols, reflects oxidative stress (OS) status and has been linked to clinical cardiovascular disease and its risk factors. These, in turn, are related to executive function decline. OS may precede the pro-inflammatory state seen in vascular disease. The objective of this study is to investigate the association between aminothiol markers of OS and inflammation in cognitive decline, especially in the executive cognitive domain which is highly susceptible to cardiovascular risk factors and is an important predictor of cognitive disability. METHODS: The study design is that of a longitudinal cohort study within the setting of a large academic institution with participants being university employees (n = 511), mean age 49 years, 68% women, and 23% African American. These participants were followed for four consecutive years with a yearly cognitive assessment conducted using computerized versions of 15 cognitive tests. Peripheral cystine, glutathione, their disulfide derivatives, and C reactive protein (CRP) were measured. RESULTS: Lower levels of glutathione at baseline was associated with a decline in the executive domain over 4 years (covariate-adjusted relative risk (RR) for glutathione = 1.70 (95% CI = 1.02 2.85), p = 0.04). Furthermore, a longitudinal decline in glutathione level was associated with a faster decline in the executive domain (p = 0.03). None of the other OS markers or CRP were linked to cognitive decline over 4 years. CONCLUSION: Increased OS reflected by decreased glutathione was associated with a decline in executive function in a healthy population. In contrast, inflammation was not linked to cognitive decline. OS may be an earlier biomarker that precedes the inflammatory phase of executive decline with aging. PMID- 29338748 TI - Finite element analysis of intramedullary nailing and double locking plate for treating extra-articular proximal tibial fractures. AB - BACKGROUND: Proximal tibia fractures are one of the most familiar fractures. Surgical approaches are usually needed for anatomical reduction. However, no single treatment method has been widely established as the standard care. Our present study aims to compare the stress and stability of intramedullary nails (IMN) fixation and double locking plate (DLP) fixation in the treatment of extra articular proximal tibial fractures. METHODS: A three-dimensional (3D) finite element model of the extra-articular proximal tibial fracture, whose 2-cm bone gap began 7 cm from the tibial plateau articular surface, was created fixed by different fixation implants. The axial compressive load on an adult knee during single-limb stance was imitated by an axial force of 2500 N with a distribution of 60% to the medial compartment, while the distal end was fixed effectively. The equivalent von Mises stress and displacement of the model was used as the output measures for analysis. RESULTS: The maximal equivalent von Mises stress value of the system in the IMN model was 293.23 MPa, which was higher comparing against that in the DLP fixation model (147.04 MPa). And the mean stress of the model in the IMN model (9.25 MPa) was higher than that of the DLP fixation system in terms of equivalent von Mises stress (EVMS) (P < 0.0001). The maximal value of displacement (sum) in the IMN system was 8.82 mm, which was lower than that in the DLP fixation system (9.48 mm). CONCLUSIONS: This study demonstrated that the stability provided by the locking plate fixation system was superior to the intramedullary nails fixation system and served as an alternative fixation for the extra-articular proximal tibial fractures of young patients. PMID- 29338749 TI - Interleukin-6 induces fat loss in cancer cachexia by promoting white adipose tissue lipolysis and browning. AB - BACKGROUND: Cancer cachexia is a progressive and multi-factorial metabolic syndrome characterized by loss of adipose tissue and skeletal muscle. White adipose tissue (WAT) lipolysis and white-to-brown transdifferentiation of WAT (WAT browning) are proposed to contribute to WAT atrophy in cancer cachexia. Chronic inflammation, mediated by cytokines such as tumor necrosis factor alpha (TNF-alpha) and interleukin-6 (IL-6), has been reported to promote cancer cachexia. However, whether chronic inflammation promotes cancer cachexia by regulating WAT metabolism and the underlying mechanism remains unclear. METHODS: In this study, we first analyzed the association between chronic inflammation and WAT metabolism in gastric and colorectal cancer cachectic patients. In cachectic mice treated with anti-IL-6 receptor antibody, we clarified whether WAT lipolysis and browning were regulated by IL-6. RESULTS: Clinical analyses showed positive significant association between serum IL-6 and free fatty acid (FFA) both in early- and late-stage cancer cachexia. However, serum TNF-alpha was positively associated with serum FFA in the early- but not late-stage cachexia. WAT lipolysis was increased in early- and late-stage cachexia, while WAT browning was detected only in late-stage cachexia. Anti-IL-6 receptor antibody inhibited WAT lipolysis and browning in cachectic mice. CONCLUSIONS: Based on these findings, we conclude that chronic inflammation (especially that mediated by IL-6) might promote cancer cachexia by regulating WAT lipolysis in early-stage cachexia and browning in late-stage cachexia. PMID- 29338751 TI - Evaluation of the effects of a designated program on illegal drug cessation among adolescents who experiment with drugs. AB - BACKGROUND: Studies indicate that adolescent-onset drug users experience a greater likelihood of dependence that continues into adulthood. The importance of early intervention was evident in treating adolescents before their substance use progressed. We examined the effectiveness of an intervention program that prevents students who experiment with drugs from reusing them. METHODS: The study was based on 10 out of 18 invited schools that were randomly assigned to either the intervention group (5 schools, n = 43) or the comparison group (5 schools, n = 41). The intervention group received an E-course program that comprised a main intervention course (12 sessions) and a booster course (2 sessions). By reducing the burden of teaching content during the 14 sessions, the in-class counselor had opportunities for face-to-face discussions with students on their ambivalence toward quitting illegal drugs. The comparison group received the conventional didactic drug prevention course (2 sessions). Outcomes in terms of stress management, refusal skills, pros of drug use, cons of drug use, and drug use resistance self-efficacy were measured via structured questionnaires conducted thrice: at baseline, after the main intervention sessions, and after the booster sessions. A linear mixed model (LMM) was employed to investigate the effects of time and groups on the outcome variables with group, time, and group * time as fixed effects. Subjects and schools were selected as random effects in order to consider both within-subject and within-school correlations. RESULTS: There was a significant group * time interaction with regard to stress management, refusal skills, pros of drug use, and drug use resistance self-efficacy, excluding cons of drug use. The intervention group displayed better stress management compared to the comparison group after the booster intervention. Similar between-group differences were identified in that the intervention group displayed better refusal skills and drug use resistance self-efficacy compared to that of the comparison group. The intervention group favored using drugs less (a decrease in the pros of drug use score) compared to the comparison group after the booster intervention. CONCLUSIONS: Our program provided an example of the results of early intervention among students who experiment with illegal drugs. PMID- 29338752 TI - Structural alteration of DNA induced by viral protein R of HIV-1 triggers the DNA damage response. AB - BACKGROUND: Viral protein R (Vpr) is an accessory protein of HIV-1, which is potentially involved in the infection of macrophages and the induction of the ataxia-telangiectasia and Rad3-related protein (ATR)-mediated DNA damage response (DDR). It was recently proposed that the SLX4 complex of structure-specific endonuclease is involved in Vpr-induced DDR, which implies that aberrant DNA structures are responsible for this phenomenon. However, the mechanism by which Vpr alters the DNA structures remains unclear. RESULTS: We found that Vpr unwinds double-stranded DNA (dsDNA) and invokes the loading of RPA70, which is a single stranded DNA-binding subunit of RPA that activates the ATR-dependent DDR. We demonstrated that Vpr influenced RPA70 to accumulate in the corresponding region utilizing the LacO/LacR system, in which Vpr can be tethered to the LacO locus. Interestingly, RPA70 recruitment required chromatin remodelling via Vpr-mediated ubiquitination of histone H2B. On the contrary, Q65R mutant of Vpr, which lacks ubiquitination activity, was deficient in both chromatin remodelling and RPA70 loading on to the chromatin. Moreover, Vpr-induced unwinding of dsDNA coincidently resulted in the accumulation of negatively supercoiled DNA and covalent complexes of topoisomerase 1 and DNA, which caused DNA double-strand breaks (DSBs) and DSB-directed integration of proviral DNA. Lastly, we noted the dependence of Vpr-promoted HIV-1 infection in resting macrophages on topoisomerase 1. CONCLUSIONS: The findings of this study indicate that Vpr induced structural alteration of DNA is a primary event that triggers both DDR and DSB, which ultimately contributes to HIV-1 infection. PMID- 29338750 TI - Reperfusion therapy in acute ischemic stroke: dawn of a new era? AB - Following the success of recent endovascular trials, endovascular therapy has emerged as an exciting addition to the arsenal of clinical management of patients with acute ischemic stroke (AIS). In this paper, we present an extensive overview of intravenous and endovascular reperfusion strategies, recent advances in AIS neurointervention, limitations of various treatment paradigms, and provide insights on imaging-guided reperfusion therapies. A roadmap for imaging guided reperfusion treatment workflow in AIS is also proposed. Both systemic thrombolysis and endovascular treatment have been incorporated into the standard of care in stroke therapy. Further research on advanced imaging-based approaches to select appropriate patients, may widen the time-window for patient selection and would contribute immensely to early thrombolytic strategies, better recanalization rates, and improved clinical outcomes. PMID- 29338753 TI - Examining within- and across-day relationships between transient and chronic stress and parent food-related parenting practices in a racially/ethnically diverse and immigrant population : Stress types and food-related parenting practices. AB - BACKGROUND: Although prior research suggests that stress may play a role in parent's use of food-related parenting practices, it is unclear whether certain types of stress (e.g., transient, chronic) result in different food-related parenting practices. Identifying whether and how transient (i.e., momentary; parent/child conflict) and chronic (i.e., long-term; unemployment >6 months) sources of stress are related to parent food-related parenting practices is important with regard to childhood obesity. This is particularly important within racially/ethnically diverse parents who may be more likely to experience both types of stress and who have higher levels of obesity and related health problems. The current study examined the association between transient and chronic stressors and food-related parenting practices in a racially/ethnically diverse and immigrant sample. METHODS: The current study is a cross-sectional, mixed-methods study using ecological momentary assessment (EMA). Parents (mean age = 35; 95% mothers) of children ages 5-7 years old (n = 61) from six racial/ethnic groups (African American, American Indian, Hispanic, Hmong, Somali, White) participated in this ten-day in-home observation with families. RESULTS: Transient stressors, specifically interpersonal conflicts, had significant within day effects on engaging in more unhealthful food-related parenting practices the same evening with across-day effects weakening by day three. In contrast, financial transient stressors had stronger across-day effects. Chronic stressors, including stressful life events were not consistently associated with more unhealthful food-related parenting practices. CONCLUSIONS: Transient sources of stress were significantly associated with food-related parenting practices in racially/ethnically diverse and immigrant households. Chronic stressors were not consistently associated with food-related parenting practices. Future research and interventions may want to assess for transient sources of stress in parents and target these momentary factors in order to promote healthful food-related parenting practices. PMID- 29338755 TI - Hyperhomocysteinemia in bilateral anterior ischemic optic neuropathy after conventional coronary artery bypass graft: a case report. AB - BACKGROUND: The incidence of anterior ischemic optic neuropathy after coronary artery bypass graft procedures ranges from 1.3 to 0.25%. The mechanisms of anterior ischemic optic neuropathy after cardiovascular procedures remain undefined but many systemic and related-to-surgery risk factors could underlie anterior ischemic optic neuropathy. In this case, we report a rare presentation of a bilateral anterior ischemic optic neuropathy after coronary artery bypass graft and speculate on the preoperative hyperhomocysteinemia as an independent risk factor for anterior ischemic optic neuropathy. CASE PRESENTATION: A 56-year old white man, a tobacco smoker with type 2 diabetes and coronary artery disease, underwent a conventional coronary artery bypass graft with extracorporeal circulation. In spite of ongoing anti-aggregation, antithrombotic, and vasodilator therapy, 10 days after the surgery he complained of severe bilateral visual loss. Funduscopy and fluorescein angiography revealed a bilateral anterior ischemic optic neuropathy. Analysis of preoperative laboratory tests revealed hyperhomocysteinemia. CONCLUSION: Hyperhomocysteinemia could increase the risk of ocular vascular damage and bilateral ocular involvement in patients who have undergone conventional coronary artery bypass graft. PMID- 29338754 TI - Molecular and functional signatures in a novel Alzheimer's disease mouse model assessed by quantitative proteomics. AB - BACKGROUND: Alzheimer's disease (AD), the most common neurodegenerative disorder, is characterized by the deposition of extracellular amyloid plaques and intracellular neurofibrillary tangles. To understand the pathological mechanisms underlying AD, developing animal models that completely encompass the main features of AD pathologies is indispensable. Although mouse models that display pathological hallmarks of AD (amyloid plaques, neurofibrillary tangles, or both) have been developed and investigated, a systematic approach for understanding the molecular characteristics of AD mouse models is lacking. METHODS: To elucidate the mechanisms underlying the contribution of amyloid beta (Abeta) and tau in AD pathogenesis, we herein generated a novel animal model of AD, namely the AD-like pathology with amyloid and neurofibrillary tangles (ADLPAPT) mice. The ADLPAPT mice carry three human transgenes, including amyloid precursor protein, presenilin-1, and tau, with six mutations. To characterize the molecular and functional signatures of AD in ADLPAPT mice, we analyzed the hippocampal proteome and performed comparisons with individual-pathology transgenic mice (i.e., amyloid or neurofibrillary tangles) and wild-type mice using quantitative proteomics with 10-plex tandem mass tag. RESULTS: The ADLPAPT mice exhibited accelerated neurofibrillary tangle formation in addition to amyloid plaques, neuronal loss in the CA1 area, and memory deficit at an early age. In addition, our proteomic analysis identified nearly 10,000 protein groups, which enabled the identification of hundreds of differentially expressed proteins (DEPs) in ADLPAPT mice. Bioinformatics analysis of DEPs revealed that ADLPAPT mice experienced age dependent active immune responses and synaptic dysfunctions. CONCLUSIONS: Our study is the first to compare and describe the proteomic characteristics in amyloid and neurofibrillary tangle pathologies using isobaric label-based quantitative proteomics. Furthermore, we analyzed the hippocampal proteome of the newly developed ADLPAPT model mice to investigate how both Abeta and tau pathologies regulate the hippocampal proteome. Because the ADLPAPT mouse model recapitulates the main features of AD pathogenesis, the proteomic data derived from its hippocampus has significant utility as a novel resource for the research on the Abeta-tau axis and pathophysiological changes in vivo. PMID- 29338757 TI - A rapid high-resolution method for resolving DNA topoisomers. AB - OBJECTIVE: Agarose gel electrophoresis has been the mainstay technique for the analysis of DNA samples of moderate size. In addition to separating linear DNA molecules, it can also resolve different topological forms of plasmid DNAs, an application useful for the analysis of the reactions of DNA topoisomerases. However, gel electrophoresis is an intrinsically low-throughput technique and suffers from other potential disadvantages. We describe the application of the QIAxcel Advanced System, a high-throughput capillary electrophoresis system, to separate DNA topoisomers, and compare this technique with gel electrophoresis. RESULTS: We prepared a range of topoisomers of plasmids pBR322 and pUC19, and a 339 bp DNA minicircle, and compared their separation by gel electrophoresis and the QIAxcel System. We found superior resolution with the QIAxcel System, and that quantitative analysis of topoisomer distributions was straightforward. We show that the QIAxcel system has advantages in terms of speed, resolution and cost, and can be applied to DNA circles of various sizes. It can readily be adapted for use in compound screening against topoisomerase targets. PMID- 29338756 TI - Spatial access to restaurants and grocery stores in relation to frequency of home cooking. AB - BACKGROUND: Little is known about the relation between the neighbourhood food environment and home cooking. We explored the independent and combined associations between residential neighbourhood spatial access to restaurants and grocery stores with home cooking in European adults. METHODS: Data of 5076 participants of the SPOTLIGHT study were collected across five European countries in 2014. Food retailers were classified into grocery stores (supermarkets and local food shops) and restaurants (full-service restaurants, fast food and take away restaurants, cafe/bars). We used multinomial logistic regression models to test the associations between tertiles of spatial access to restaurants and spatial to access grocery stores and the outcome 'frequency of home cooking' categorized into 0-3; 4-5; and 6-7 days/week. Additive interaction analysis was used to test the combined association between access to grocery stores and to restaurants with home cooking. RESULTS: Mean age was 52.3 years; most participants were women (55.5%) and completed higher education (53.8%). Residents with highest access to restaurants had a reduced likelihood of home cooking 6-7 days/week (vs. 0-3 days/week) (relative risk ratio (RRR) 0.42; 95%CI = 0.23-0.76) when compared with lowest access to restaurants. No association was found for spatial access to grocery stores. Additive interaction analysis showed that individuals with medium access to grocery stores and highest access to restaurants had the lowest likelihood (RRR = 0.29, 95%CI = 0.10-0.84) of cooking 6-7 days/week when compared to individuals with lowest access to restaurants and highest access to grocery stores. CONCLUSION: Greater neighbourhood spatial access to restaurants was associated with lower frequency of home cooking, largely independent of access to grocery stores. PMID- 29338758 TI - Vitamin D status and dental caries in healthy Swedish children. AB - Background: Vitamin D is crucial for mineralized tissue formation and immunological functions. The purpose of this study was to evaluate the association between vitamin D status and dental status in healthy children with vitamin D supplementation in infancy and at 6 years of age. Method: Eight-year old children who had participated in a vitamin D intervention project when they were 6 years old were invited to participate in a dental follow-up study. They had fair or darker skin complexion and represented two geographically distant parts of Sweden. 25-hydroxy vitamin D in serum had been measured at 6 years of age and after a 3-month intervention with 25, 10 or 2 (placebo) MUg of vitamin D3 per day. Two years later, caries and enamel defects were scored, self-reported information on e.g., oral behavior, dietary habits and intake of vitamin D supplements was collected, and innate immunity peptide LL37 levels in saliva and cariogenic mutant streptococci in tooth biofilm were analyzed. The outcome variables were caries and tooth enamel defects. Results: Dental status was evaluated in 85 of the 206 children in the basic intervention study. Low vitamin D levels were found in 28% at baseline compared to 11% after the intervention, and 34% reported continued intake of vitamin D supplements. Logistic regression supported a weak inverse association between vitamin D status at 6 years of age and caries 2 years later (odds ratio 0.96; p = 0.024) with minor attenuation after an adjustment for potential confounders. Multivariate projection regression confirmed that insufficient vitamin D levels correlated with caries and higher vitamin D levels correlated with being caries-free. Vitamin D status at 6 years of age was unrelated to enamel defects but was positively associated with saliva LL37 levels. Conclusion: An association between vitamin D status and caries was supported, but it was not completely consistent. Vitamin D status at 6 years of age was unrelated to enamel defects but was positively associated with LL37 expression. Trial registration: The basic intervention study was registered at ClinicalTrials.gov with register number NCT01741324 www.clinicaltrials.gov/ct2/show/NCT02347293 on November 26, 2012. PMID- 29338759 TI - Correction to: Avoidable waste related to inadequate methods and incomplete reporting of interventions: a systematic review of randomized trials performed in Sub-Saharan Africa. AB - CORRECTION: In the original publication [1] the last sentence in the last paragraph under 'Perspectives and implications' in the Discussions section needs to be removed. The correct version can be found in this Erratum. PMID- 29338760 TI - Increased Plasmodium chabaudi malaria mortality in mice with nutritional iron deficiency can be reduced by short-term adjunctive iron supplementation. AB - BACKGROUND: Iron deficiency is the most widespread nutrient deficiency and an important cause of developmental impairment in children. However, some studies have indicated that iron deficiency can also protect against malaria, which is a leading cause of childhood morbidity and mortality in large parts of the world. This has rendered interventions against iron deficiency in malaria-endemic areas controversial. METHODS: The effect of nutritional iron deficiency on the clinical outcome of Plasmodium chabaudi AS infection in A/J mice and the impact of intravenous iron supplementation with ferric carboxymaltose were studied before and after parasite infection. Plasma levels of the iron status markers hepcidin and fibroblast growth factor 23 were measured in animals surviving and succumbing to malaria, and accompanying tissue pathology in the liver and the spleen was assessed. RESULTS: Nutritional iron deficiency was associated with increased mortality from P. chabaudi malaria. This increased mortality could be partially offset by carefully timed, short-duration adjunctive iron supplementation. Moribund animals were characterized by low levels of hepcidin and high levels of fibroblast growth factor 23. All infected mice had extramedullary splenic haematopoiesis, and iron-supplemented mice had visually detectable intracellular iron stores. CONCLUSIONS: Blood transfusions are the only currently available means to correct severe anaemia in children with malaria. The potential of carefully timed, short-duration adjunctive iron supplementation as a safe alternative should be considered. PMID- 29338761 TI - Is total femoral replacement for non-oncologic and oncologic indications a safe procedure in limb preservation surgery? A single center experience of 22 cases. AB - BACKGROUND: Several surgical options for the reconstruction of massive bone defects have been described and include biologic methods with autografts and allografts, and the use of tumor endoprostheses (total femoral replacement, TFR). Several types of modular TFR are available, but nevertheless unpredictable outcomes and high complication rates have been described from most authors. The present study aims to compare results after TFR performed with modular total femur prosthesis MML (Fa. ESKA/Orthodynamics) in patients with and without malignant disease. METHODS: Retrospective chart review and functional investigation (Musculoskeletal Tumor Society (MSTS) score, Harris Hip Score (HHS), Oxford Knee Score (OKS), SF-12 Health Survey, and failure classification according to Henderson) of TFR cases from 1995 to 2011. Indications for TFR were malignant tumor resection from the femur (n = 9, Group A) or failure of a revision arthroplasty without history of malignant disease (n = 13, Group B). RESULTS: Thirty-six patients were treated during the study period, of whom 22 could be investigated clinically after a mean follow-up of 63 months. Overall failure rate for TFR was 59.1%, leading to 38 surgical revisions. The most common failure mechanisms were Type I (soft tissue), followed by Type IV (infection) and Type III (mechanical failure). Mean MSTS score out of 30 was 13 (range 1-25), with significantly higher scores in Group A (mean 19, range 3-25) than Group B (mean 9, range 1-15). CONCLUSION: TFR is an established procedure to restore femoral integrity. However, complication rates are considerably high, and depend mainly on the age at initial reconstruction. PMID- 29338762 TI - Predictors of remission with etanercept-methotrexate induction therapy and loss of remission with etanercept maintenance, reduction, or withdrawal in moderately active rheumatoid arthritis: results of the PRESERVE trial. AB - BACKGROUND: The aim was to analyze characteristics that predict remission induction and subsequent loss of remission in patients with moderately active rheumatoid arthritis (RA) who received full-dose combination etanercept plus methotrexate induction therapy followed by reduced-dose etanercept or etanercept withdrawal. METHODS: Patients with Disease Activity Score based on 28-joint count (DAS28) >3.2 and <=5.1 received open-label etanercept 50 mg once weekly (QW) plus methotrexate for 36 weeks. Those who achieved DAS28 low disease activity by 36 weeks were randomized to double-blind treatment with etanercept 50 mg or 25 mg QW plus methotrexate or placebo plus methotrexate for 52 weeks. All analyses were adjusted for the continuous baseline variables of their respective remission outcomes. RESULTS: Younger age, body mass index (BMI) <30 kg/m2, and lower Health Assessment Questionnaire (HAQ) score at baseline were significant predictors of week-36 remission (P < 0.05) based on DAS28, Simplified Disease Activity Index (SDAI), and Clinical Disease Activity Index (CDAI). Baseline DAS28, SDAI, and CDAI were significantly predictive of all three remission endpoints (P < 0.05). For all three treatments, the strongest predictors of loss of DAS28 remission included failure to achieve sustained remission (DAS28 < 2.6 at weeks 12, 20, 28, and 36) with induction therapy, higher DAS28/SDAI/CDAI at randomization and at 1 month, increase in DAS28/SDAI/CDAI at 1 month, and increase in DAS28/CDAI/SDAI components and patient-reported outcomes (PROs) at 1 month. With the exception of not achieving sustained remission, very similar significant predictors were observed for loss of SDAI and CDAI remission. CONCLUSION: These findings suggest that patients with moderately active RA who are younger and have lower BMI, lower HAQ, and lower disease activity at baseline are most likely to achieve remission when receiving combination etanercept and methotrexate induction therapy. In addition, patients who fail to achieve sustained remission with induction therapy and those with worse disease activity and PROs at early time points after initiating maintenance therapy with a full-dose or reduced-dose etanercept methotrexate regimen or methotrexate monotherapy are most likely to lose remission across all treatment arms. These findings may help guide clinicians' decision-making as they treat patients to remission and beyond. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00565409 . Registered on 28 November 2007. PMID- 29338763 TI - Sero-prevalence of HBsAg in naive HIV-infected patients in a rural locality of Cameroon. AB - OBJECTIVE: This study was performed in order to fill the gap of knowledge regarding sero-epidemiology of hepatitis B virus (HBV) amongst Human Immunodeficiency virus (HIV)-infected patients and to assess the risk factors associated with HBV co-infection in a rural locality of Cameroon. A retrospective and cross-sectional study was carried out from January 2008 to April 2014 within the Mfou District Hospital. Naive HIV-infected patients were enrolled in the study and tested for hepatitis B surface antigen (HBsAg). Preliminary pre therapeutic data essential for follow-up was collected from the participants. RESULTS: Overall, the sample size was constituted of 712 HIV-infected patients. The prevalence of HBsAg was 8.99%. A significant difference was observed in the proportion of HBsAg positive subjects with respect to the year of inclusion; higher proportions were observed between 2011 and 2014 (P-value = 0.007). Majority of HBV co-infected participants had severe immuno-suppression with CD4 counts lower than 100 cells/uL as compared to HIV mono-infected population but the difference was not statistically significant. Our results confirm the high prevalence for HBV infection among HIV-infected patients in the Mfou District Hospital. These findings will enable stake holders to be better armed in the elimination of viral hepatitis as a public health problem. PMID- 29338765 TI - Infantile hypertrophic pyloric stenosis: a 4-year experience from two tertiary care centres in Cameroon. AB - OBJECTIVE: This study aimed to describe the clinical characteristics of patients with infantile hypertrophic stenosis, management and its outcome in two tertiary care centres in Cameroon. RESULTS: A total of 21 patients were included from the two centres. The mean age at presentation was 5.2 +/- 1.2 weeks, predominantly male with a male-to-female ratio of 4.25:1. The triad of vomiting, visible peristalsis and palpable mass was present in only 7 (33.3%) of the participants. The diagnosis was confirmed with ultrasounds in all participants. Ramstedt pyloromyotomy was done in all participants and in 9.5% of the participants it was complicated by intra-operative duodenal perforation whereas in the postoperative period the most common complications were vomiting (6, 28.6%), sepsis (2, 9.5%), and paralytic ileus (2, 9.5%). The mortality rate from the series is 9.5%. According to univariate logistic regression: severe dehydration [OR = 5.41, 95% CI = (3.11-6.97), p = 0.002], hypokalaemia [OR = 2.63, 95% CI = (1.02-5.91), p = 0.042] and surgical site infection [OR = 3.12, 95% CI (1.22-5.64), p = 0.023] were the main predictors of mortality whereas postoperative hospital length of stay > 5 days was significantly associated with surgical site infection [OR = 2.44, 95% CI = (1.12-6.44), p = 0.002] and postoperative nausea and vomiting [OR = 3.64, 95% CI = (1.18-6.64), p = 0.022]. PMID- 29338764 TI - Cropping practices manipulate abundance patterns of root and soil microbiome members paving the way to smart farming. AB - BACKGROUND: Harnessing beneficial microbes presents a promising strategy to optimize plant growth and agricultural sustainability. Little is known to which extent and how specifically soil and plant microbiomes can be manipulated through different cropping practices. Here, we investigated soil and wheat root microbial communities in a cropping system experiment consisting of conventional and organic managements, both with different tillage intensities. RESULTS: While microbial richness was marginally affected, we found pronounced cropping effects on community composition, which were specific for the respective microbiomes. Soil bacterial communities were primarily structured by tillage, whereas soil fungal communities responded mainly to management type with additional effects by tillage. In roots, management type was also the driving factor for bacteria but not for fungi, which were generally determined by changes in tillage intensity. To quantify an "effect size" for microbiota manipulation, we found that about 10% of variation in microbial communities was explained by the tested cropping practices. Cropping sensitive microbes were taxonomically diverse, and they responded in guilds of taxa to the specific practices. These microbes also included frequent community members or members co-occurring with many other microbes in the community, suggesting that cropping practices may allow manipulation of influential community members. CONCLUSIONS: Understanding the abundance patterns of cropping sensitive microbes presents the basis towards developing microbiota management strategies for smart farming. For future targeted microbiota management-e.g., to foster certain microbes with specific agricultural practices-a next step will be to identify the functional traits of the cropping sensitive microbes. PMID- 29338766 TI - Identification of differentially expressed genes and pathways for intramuscular fat metabolism between breast and thigh tissues of chickens. AB - BACKGROUND: Intramuscular fat (IMF) is one of the important factors influencing meat quality, however, for chickens, the molecular regulatory mechanisms underlying this trait have not yet been clear. In this study, a systematic identification of differentially expressed genes (DEGs) and molecular regulatory mechanism related to IMF metabolism between Beijing-you chicken breast and thigh at 42 and 90 days of age was performed. RESULTS: IMF contents, Gene Ontology (GO) terms, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways were analyzed, The results showed that both IMF contents in breast at 42 and 90 d were significantly lower (P < 0.05 or P < 0.01) than those in thigh. By microarray, 515 common known DEGs and 36 DEGs related to IMF metabolism were identified between the breast and thigh at 42 and 90 d. Compared to thigh, the expression levels of PPARG had significantly down-regulated (P < 0.01) in breast, but the expression levels of RXRA and CEBPB had significantly up-regulated (P < 0.01). However, the expression levels of LPL, FABP4, THRSP, RBP7, LDLR, FABP3, CPT2 and PPARGC1A had significantly down-regulated in breast (P < 0.01), supporting that PPARG and its down-stream genes had the important regulatory function to IMF deposition. In addition, based on of DEGs, KEGG analysis revealed that PPAR signaling pathway and cell junction-related pathways (focal adhesion and ECM receptor interaction, which play a prominent role in maintaining the integrity of tissues), might contribute to the IMF metabolism in chicken. CONCLUSIONS: Our data had screened the potential candidate genes associated with chicken IMF metabolism, and imply that IMF metabolism in chicken is regulated and mediated not only by related functional genes and PPAR pathway, but also by others involved in cell junctions. These findings establish the groundwork and provide new clues for deciphering the molecular mechanisms underlying IMF deposition in poultry. Further studies at the translational and posttranslational level are now required to validate the genes and pathways identified here. PMID- 29338767 TI - Effect of exercise versus cognitive behavioural therapy or no intervention on anxiety, depression, fitness and quality of life in adults with previous methamphetamine dependency: a systematic review. AB - BACKGROUND: Methamphetamine (MA) is a highly addictive psychostimulant used by approximately 52 million people worldwide. Chronic MA abuse leads to detrimental physiological and neurological changes, as well as increases in anxiety and depression, and decreases in overall fitness and quality of life. Exercise has been reported to possibly reverse physiological and neurological damage caused by previous MA use, and to reduce anxiety and depression in this population. The aim of this systematic review was to identify, clinically appraise and synthesise the available evidence for the effectiveness of exercise, compared to cognitive behavioural therapy (CBT), standard care or no intervention, on decreasing anxiety and depression and improving fitness and quality of life in previous MA users. METHODS: Seven computerised databases were searched from inception to May 2017, namely Scopus, Cochrane Library, PubMed/MEDLINE, PEDro, CINAHL, and ScienceDirect. Search terms included exercise, methamphetamine, fitness measures, depression, anxiety and quality of life. Randomised and non-randomised controlled or clinical trials and pilot studies, published in English, were considered for inclusion. Methodological quality was critically appraised according to the PEDro scale. Heterogeneity across studies regarding control groups and assessment intervals rendered meta analyses inappropriate for this review and results were thus described narratively using text and tables. RESULTS: Two hundred and fifty one titles were identified following the initial search, and 14 potentially relevant titles were selected and the abstracts reviewed. Three studies (two randomised controlled trials and one quasi-experimental pilot) were included, with an average PEDro score of 6.66. Exercise resulted in significantly lower depression and anxiety scores versus CBT (p = 0.001). Balance also significantly improved following exercise versus standard care (p < 0.001); as did vital capacity, hand-grip and one-leg stand with eyes closed. There were significant changes in all subdivisions of the Quality of Life Scale Questionnaire (p < 0.05), except psychology (p = 0.227). CONCLUSIONS: Level II evidence suggests that exercise is effective in reducing anxiety and depression and improving fitness in previous MA users, and Level III-2 evidence suggests that exercise is beneficial for improving quality of life in this population. Overall recovery in previous MA dependents might be significantly enhanced by including exercise in the rehabilitation process. Further research is required to strengthen these conclusions and to inform policy and health systems effectively. PMID- 29338769 TI - Publication rate of abstracts presented at Japan Geriatrics Society Annual Meetings (2011-2012): a retrospective observational study. AB - OBJECTIVE: We aimed to determine the publication rate of abstracts presented at Japan Geriatrics Society Annual Meetings. Publication rates were determined by searching for full-text publications up to September 2017 in the MEDLINE database. Factors associated with publication were determined. RESULTS: In total, 618 abstracts presented at Japan Geriatrics Society Annual Meetings (2011-2012) were included. Of those, 146 (23.6% [95% CI 20.3-27.0%]) were published in peer reviewed journals indexed in MEDLINE. The median time to publication was 13.0 months (interquartile range 6.0-25.8 months). More than 90% were published within 4 years. The publications appeared in 64 different journals, and 87.0% were published in English-language journals. Multivariable analysis revealed more frequent publication of oral presentations (25.4% vs 16.9% of poster presentations; adjusted OR 1.79 [95% CI 1.05-3.06]), randomized controlled trials (66.7% vs 22.8% for other study designs; adjusted OR 10.79 [95% CI 3.02-38.53]) and studies with n >= 100 (28.7% vs 18.4% of studies with n < 100; adjusted OR 1.97 [95% CI 1.32-2.95]). Because more than three-fourths of the abstracts presented at Japan Geriatrics Society Annual Meetings remained unpublished within 5 years after the conferences, additional efforts may be needed to promote their publication. PMID- 29338768 TI - Binary-blend fibber-based capture assay of circulating tumor cells for clinical diagnosis of colorectal cancer. AB - BACKGROUND: In addition to conventional approaches, detecting and characterizing CTCs in patient blood allows for early diagnosis of cancer metastasis. METHODS: We blended poly(ethylene oxide) (PEO) into nylon-6 through electrospinning to generate a fibrous matbased circulating tumour cells (CTCs) assay. The contents of nylon-6 and PEO in the electrospun blend fibrous mats (EBFMs) were optimized to facilitate high cell-substrate affinity and low leukocyte adsorption. RESULTS: Compared with the IsoFlux System, a commercial instrument for CTC detection, the CTC assay of EBFMs exhibited lower false positive readings and high sensitivity and selectivity with preclinical specimens. Furthermore, we examined the clinical diagnosis accuracy of colorectal cancer, using the CTC assay and compared the results with those identified through pathological analyses of biopsies from colonoscopies. Our positive expressions of colorectal cancer through CTC detection completely matched those recognized through the pathological analyses for the individuals having stage II, III, and IV colorectal cancer. Nevertheless, two in four individuals having stage I colorectal cancer, recognized through pathological analysis of biopsies from colonoscopies, exhibited positive expression of CTCs. Ten individuals were identified through pathological analysis as having no colorectal tumours. Nevertheless, two of these ten individuals exhibited positive expression of CTCs. CONCLUSIONS: Thus, in this population, the low cost EBFMs exhibited considerable capture efficiency for the non-invasive diagnosis of colorectal cancer. PMID- 29338770 TI - Nonmedical prescription opioid use and illegal drug use: initiation trajectory and related risks among people who use illegal drugs in Vancouver, Canada. AB - OBJECTIVE: We investigated the prevalence of and risk factors associated with initiating nonmedical prescription opioid use (NMPOU) before and after illegal drugs using data from two linked cohort studies of street youth and adults who use illegal drugs in Vancouver, Canada. All participants who attended a study visit between 2013 and 2016 were eligible for the primary analyses. RESULTS: Among 512 youth and 833 adult participants, the prevalence of NMPOU was extremely high (88% among street youth; 90% among adults), and over one-third of those who reported engaging in NMPOU had initiated NMPOU before illegal drug use (vs. transitioning from illegal drugs to NMPOU). Participants who reported either transitioning to or from NMPOU had higher risk profiles, particularly related to substance use, when compared with those who reported never engaging in NMPOU. Sub analyses restricted to only those who engaged in NMPOU found few statistically significant differences between those who initiated NMPOU prior to illegal drugs versus those who initiated illegal drugs prior to NMPOU. Findings suggest that among people who use illegal drugs, early NMPOU trajectories do not appear to critically shape future patterns and practices. PMID- 29338771 TI - Regulation of aquaporins in plants under stress. AB - Aquaporins (AQP) are channel proteins belonging to the Major Intrinsic Protein (MIP) superfamily that play an important role in plant water relations. The main role of aquaporins in plants is transport of water and other small neutral molecules across cellular biological membranes. AQPs have remarkable features to provide an efficient and often, specific water flow and enable them to transport water into and out of the cells along the water potential gradient. Plant AQPs are classified into five main subfamilies including the plasma membrane intrinsic proteins (PIPs), tonoplast intrinsic proteins (TIPs), nodulin 26 like intrinsic proteins (NIPs), small basic intrinsic proteins (SIPs) and X intrinsic proteins (XIPs). AQPs are localized in the cell membranes and are found in all living cells. However, most of the AQPs that have been described in plants are localized to the tonoplast and plasma membranes. Regulation of AQP activity and gene expression, are also considered as a part of the adaptation mechanisms to stress conditions and rely on complex processes and signaling pathways as well as complex transcriptional, translational and posttranscriptional factors. Gating of AQPs through different mechanisms, such as phosphorylation, tetramerization, pH, cations, reactive oxygen species, phytohormones and other chemical agents, may play a key role in plant responses to environmental stresses by maintaining the uptake and movement of water in the plant body. PMID- 29338772 TI - Incidence, risk factors and impact of protocolised care on exposure keratopathy in critically ill adults: a two-phase prospective cohort study. AB - BACKGROUND: Exposure keratopathy (EK) has a high incidence in critically ill patients. We aimed to determine the rate of EK in patients admitted to our intensive care unit (ICU), identify risk factors for developing EK and ascertain the effectiveness of a protocol to prevent EK. METHODS: We undertook a two-phase prospective cohort single-centre study in a general adult ICU. The first phase of the study was observational. In the second phase of the study an eye care protocol was introduced. Daily ophthalmic assessment was carried out using a portable slit lamp. We also recorded Acute Physiology and Chronic Health Evaluation II score, daily Sequential Organ Failure Assessment score, mechanical ventilation, Richmond Agitation-Sedation Scale, and level of eye care. Student's t test and chi 2 statistics were used for simple analysis of continuous data and categorical data, respectively. Binary logistic regression was used to analyse the relationship between EK (yes/no), as the dependent variable, and multiple independent variables, calculating unadjusted and adjusted odds ratios. RESULTS: We studied 371 patients. In the first phase, the overall rate of EK was 21% but the rate in mechanically ventilated patients was 56%; chi 2 (1, N = 257) = 80.8, p < 0.001. Adjusted odds ratios (AOR) for development of EK were 28.6 (8.19 43.37), 13.0 (3.16-54.38) and 1.2 (1.03-1.33) with incomplete eye closure, mechanical ventilation, and higher SOFA score, respectively. Following the introduction of the protocol in the second phase, the overall rate of EK reduced to 2.6% (three cases); chi 2 (1, N = 371) = 18.6, p < 0.001. Compliance with the protocol was 97%. CONCLUSIONS: EK is common in critically ill patients, and is associated with mechanical ventilation and incomplete eye closure. A simple protocol substantially reduces the incidence of EK and is easily achieved in clinical practice. PMID- 29338773 TI - Chemokine ligand-receptor interactions critically regulate cutaneous wound healing. AB - BACKGROUND: Wound healing represents a dynamic process involving directional migration of different cell types. Chemokines, a family of chemoattractive proteins, have been suggested to be key players in cell-to-cell communication and essential for directed migration of structural cells. Today, the role of the chemokine network in cutaneous wound healing is not fully understood. Unraveling the chemokine-driven communication pathways in this complex process could possibly lead to new therapeutic strategies in wound healing disorders. METHODS: We performed a systematic, comprehensive time-course analysis of the expression and function of a broad variety of cytokines, growth factors, adhesion molecules, matrixmetalloproteinases and chemokines in a murine cutaneous wound healing model. RESULTS: Strikingly, chemokines were found to be among the most highly regulated genes and their expression was found to coincide with the expression of their matching receptors. Accordingly, we could show that resting and activated human primary keratinocytes (CCR3, CCR4, CCR6, CXCR1, CXCR3), dermal fibroblasts (CCR3, CCR4, CCR10) and dermal microvascular endothelial cells (CCR3, CCR4, CCR6, CCR8, CCR9, CCR10, CXCR1, CXCR2, CXCR3) express a distinct and functionally active repertoire of chemokine receptors. Furthermore, chemokine ligand-receptor interactions markedly improved the wound repair of structural skin cells in vitro. CONCLUSION: Taken together, we here present the most comprehensive analysis of mediators critically involved in acute cutaneous wound healing. Our findings suggest therapeutic approaches for the management of wound closure by targeting the chemokine network. PMID- 29338774 TI - Depressive symptoms are associated with poor glycemic control among women with type 2 diabetes mellitus. AB - OBJECTIVE: In patients with type 2 diabetes mellitus, depressive symptoms may be associated with metabolic deterioration. The impact of sex on this association is unclear. The aim of this study is to analyze the relationship between depression and metabolic control by sex. The data presented is the side product of the clinical investigation by Rui Duarte, MD, Treatment Response in Type 2 Diabetes Patients with Major Depression from 2007. RESULTS: A sample of 628 outpatients with type 2 diabetes mellitus was taken from a specialized diabetes outpatient clinic. In a univariate analysis: women's glycohemoglobin mean levels were 8.99% whereas men's were 8.41% and the difference was statistically significant. The proportion of women (34.3%) with pathological levels of depression (Hospital Anxiety Depression Scale score >= 8) was significantly higher than men's (15.2%). A linear regression analysis performed by sex and controlling for demographic, clinical and psychological variables, showed poorer metabolic control in women with depressive symptoms. No association was observed in men. These results support depression as a predictor for poor metabolic control in women and the need for detecting depressive symptoms when glycemic levels deteriorate. PMID- 29338775 TI - Comparison of speckle-tracking echocardiography with invasive hemodynamics for the detection of characteristic cardiac dysfunction in type-1 and type-2 diabetic rat models. AB - BACKGROUND: Measurement of systolic and diastolic function in animal models is challenging by conventional non-invasive methods. Therefore, we aimed at comparing speckle-tracking echocardiography (STE)-derived parameters to the indices of left ventricular (LV) pressure-volume (PV) analysis to detect cardiac dysfunction in rat models of type-1 (T1DM) and type-2 (T2DM) diabetes mellitus. METHODS: Rat models of T1DM (induced by 60 mg/kg streptozotocin, n = 8) and T2DM (32-week-old Zucker Diabetic Fatty rats, n = 7) and corresponding control animals (n = 5 and n = 8, respectively) were compared. Echocardiography and LV PV analysis were performed. LV short-axis recordings were used for STE analysis. Global circumferential strain, peak strain rate values in systole (SrS), isovolumic relaxation (SrIVR) and early diastole (SrE) were measured. LV contractility, active relaxation and stiffness were measured by PV analysis. RESULTS: In T1DM, contractility and active relaxation were deteriorated to a greater extent compared to T2DM. In contrast, diastolic stiffness was impaired in T2DM. Correspondingly, STE described more severe systolic dysfunction in T1DM. Among diastolic STE parameters, SrIVR was more decreased in T1DM, however, SrE was more reduced in T2DM. In T1DM, SrS correlated with contractility, SrIVR with active relaxation, while in T2DM SrE was related to cardiac stiffness, cardiomyocyte diameter and fibrosis. CONCLUSIONS: Strain and strain rate parameters can be valuable and feasible measures to describe the dynamic changes in contractility, active relaxation and LV stiffness in animal models of T1DM and T2DM. STE corresponds to PV analysis and also correlates with markers of histological myocardial remodeling. PMID- 29338776 TI - Takayasu arteritis a cause of hypertensive disorder of pregnancy: a case report. AB - BACKGROUND: Takayasu arteritis is a rare, chronic, granulomatous systemic vasculitis of unknown etiology and a few cases have been reported in pregnancy. In pregnancies concomitant with Takayasu arteritis or after diagnosis, Takayasu arteritis negatively affects pregnancy by increasing 13-fold the odds of complications such as hypertensive disorders. The best recommendations in this scenario are still to be made. CASE PRESENTATION: We present a case of 21-year old, gravid 1, Mexican woman of Mestizo descent with chronic hypertension diagnosed since she was 15-years old who presented severe hypertension during pregnancy (early second trimester); the diagnosis of hypertensive disorder of pregnancy was ruled out requiring first-line and second-line antihypertensive therapy without serious associated maternal or fetal morbidity. CONCLUSIONS: Takayasu arteritis and pregnancy play an important role in maternal and fetal outcomes. Efforts should be made to further investigate the Takayasu arteritis diagnosis in pregnant women with refractory hypertension. PMID- 29338777 TI - Measuring management's perspective of data quality in Pakistan's Tuberculosis control programme: a test-based approach to identify data quality dimensions. AB - BACKGROUND: Data quality is core theme of programme's performance assessment and many organizations do not have any data quality improvement strategy, wherein data quality dimensions and data quality assessment framework are important constituents. As there is limited published research about the data quality specifics that are relevant to the context of Pakistan's Tuberculosis control programme, this study aims at identifying the applicable data quality dimensions by using the 'fitness-for-purpose' perspective. RESULTS: Forty-two respondents pooled a total of 473 years of professional experience, out of which 223 years (47%) were in TB control related programmes. Based on the responses against 11 practical cases, adopted from the routine recording and reporting system of Pakistan's TB control programme (real identities of patient were masked), completeness, accuracy, consistency, vagueness, uniqueness and timeliness are the applicable data quality dimensions relevant to the programme's context, i.e. work settings and field of practice. CONCLUSION: Based on a 'fitness-for-purpose' approach to data quality, this study used a test-based approach to measure management's perspective and identified data quality dimensions pertinent to the programme and country specific requirements. Implementation of a data quality improvement strategy and achieving enhanced data quality would greatly help organizations in promoting data use for informed decision making. PMID- 29338778 TI - Increased whole blood FFA2/GPR43 receptor expression is associated with increased 30-day survival in patients with sepsis. AB - OBJECTIVE: Sepsis is a condition associated with a dysregulated inflammatory response to infection with significant morbidity. Recent advances have elucidated the vital role that the short chain fatty acid glycoprotein receptor 43 (FFA2/GPR43) plays in inflammatory and immunomodulatory pathways. We hypothesized that elevated whole blood GPR43 RNA expression would be associated with increased 30-day survival in patients admitted with sepsis. Patients (n = 93) admitted to the intensive care unit with the diagnosis of sepsis underwent quantitative real time PCR within 48 h of intensive care unit admission. Clinical and demographical parameters were retrospectively extracted from the chart and compared to quantitative measurements of GPR43 RNA expression. RESULTS: Utilizing logistic regression, we found that the odds of mortality decreased for every one-unit increase in GPR43 RNA expression for patients that survived to 30 days [OR = 0.71; 95% CI (0.50, 0.99) p = 0.049]. Using linear regression, we determined that the increase in whole blood GPR43 expression was not associated with whole blood white cell count [r = 0.04; 95% CI (-0.16, 0.24); p = 0.70] or body mass index [r = - 0.07; 95% CI (- 0.23, 0.18); p = 0.81]. We conclude that the GPR43 receptor plays an integral role in survival during and after sepsis. PMID- 29338779 TI - Comparing of two different epidemic seasons of bronchiolitis. AB - Acute bronchiolitis is the most common cause of hospitalizations in infants < 12 months of age and preventive efforts remain the most important strategy to date. Recently prophylaxis with palivizumab (PLV) was limited to preterm infants with < 29 weeks gestational age (wGA).We performed a single center analysis in preterm infants (GA between 30 and 32 weeks) and age < 12 months to compare prophylaxis with PLV and frequency and characteristics of bronchiolitis and bronchiolitis related hospitalization in two consecutive epidemic seasons (S1 vs S2).We found a rising trend in rate of bronchiolitis and bronchiolitis-related hospitalization in S1 vs S2. Among hospitalization, we found an increased morbidity with an increase in the rate of mechanical ventilation in S2. Additionally, hospitalization occurred in subjects with younger chronological age in S2 compared with S1.Our result cannot be generalized because deriving from a single Center and further evaluation on wider simple size are warranted, but it suggests an increase in the incidence, gravity and precocity of bronchiolitis in 29-32 wGE preterm infants with the change in National guidelines for prophylaxis. PMID- 29338780 TI - Coping with dry eyes: a qualitative approach. AB - BACKGROUND: Dry eye is a common problem that affects many people worldwide, reducing quality of life and impacting daily activities. A qualitative approach often used in medicine and other disciplines is used to evaluate how people with dry eye cope with this impact. METHODS: Six focus group sessions were conducted at the Singapore National Eye Centre (SNEC), premises of an eye research institute. These focus groups consist of a spectrum of dry eye sufferers (30 women, 8 men, aged 61 +/- 11.8 years). Standard methods of coding followed by determination of themes were adhered to. Where classification was difficult, consensus was made between 3 assessors. RESULTS: Audio-recorded transcripts were coded in 10 themes by 3 assessors independently. Four of the themes involved traditional measures such as lid warming, cleansing, lubrication and oral dietary supplements. The other themes discovered were Traditional Chinese Medicine, modification of eye-care habits (e.g. wearing sunglasses), environmental humidity, lifestyle (e.g. sleeping habits), psychological attitude, and lastly sharing and communication. CONCLUSION: Holistic coping strategies were found to be prominent in dry eye sufferers from these focus groups, and people tend to find personalised ways of coping with the impact of dry eye on daily living. PMID- 29338781 TI - Correlation between disease activity and serum ferritin in clinically amyopathic dermatomyositis with rapidly-progressive interstitial lung disease: a case report. AB - BACKGROUND: Clinically amyopathic dermatomyositis with anti-Melanoma Differentiation-Associated gene 5 (MDA5) antibody often presents with severe interstitial lung disease. Although serum ferritin level is known to reflect interstitial lung disease activity, there are few case reports describing this association. CASE PRESENTATION: A 58-year-old man was referred to our outpatient clinic with a 3-week history of cough and respiratory distress. He had erythema over the V area of the neck and a Gottron's sign. Chest computed tomography revealed diffuse ground-glass opacities and reticular shadows in both lungs. Test for anti-MDA5 antibody was positive. After admission, he received triple combination therapy (methylprednisolone pulse therapy, tacrolimus, and cyclophosphamide). However, his respiratory condition worsened as the serum ferritin level increased. Despite no apparent deterioration on chest radiography, he ultimately died due to respiratory failure. CONCLUSIONS: In this case, triple combination therapy was not effective for the patient's respiratory condition. The serum ferritin level was correlated with disease activity and was more useful than chest radiography for monitoring clinical status. PMID- 29338782 TI - Evaluation of two health education interventions to improve the varicella vaccination: a randomized controlled trial from a province in the east China. AB - BACKGROUND: We evaluated the effect of two Elaboration Likelihood Model (ELM) based health educational interventions on varicella vaccine (VarV) vaccination among pregnant women in a province in the east China. METHODS: A prospective randomized controlled trial was conducted among 200 pregnant women with >=12 gestation weeks to test two interventions, including a messaging video and a messaging booklet. The participants were randomly assigned into the control group, the video group or the booklet group. The VarV coverage at 12 and 24 months old was compared among the children of the three groups and relative risks (RRs) were calculated, by using the coverage of the control group as reference. The timeliness of VarV was also assessed. Furthermore, differences in the effects on the knowledge and attitude of VarV vaccination between the two interventions was evaluated. RESULTS: The VarV coverage of their children by 24 months of age was 86.4%, 76.1% and 56.7% for the video group, the booklet group and the control group, respectively. The relative risks (RRs) for the coverage of VarV at 24 months of age were 4.8 (95% CI: 2.06-11.3) for the video group and 2.4 (95% CI: 1.2-5.1) for the booklet group. The means of delays were 57.3 days in the video group, 76.9 days in the booklet group, and 100.6 days in the control group. The proportion of women who intended to vaccinate their children with VarV was higher in the video group than the booklet group (93.9% vs. 82.1%, p < 0.05). CONCLUSIONS: Our findings indicated that perinatal health education through booklet or video could improve the coverage and schedule adherence for children's VarV vaccination. PMID- 29338783 TI - Children with premature pubarche: is an alterated neonatal 17-Ohp screening test a predictive factor? AB - BACKGROUND: Neonatal screening for 21 hydroxylase deficiency is designed to detect classical form of congenital adrenal hyperplasia (CAH). It is still unclear whether newborns who result false positives at neonatal screening might later develop signs of androgen excess. The aim of this study is to verify whether a slightly elevated 17-OHP at newborn screening is a predictive factor for premature pubarche. METHODS: We evaluated all infants born between 2001 and 2014 with premature pubarche. In case of increased bone age, they were submitted to functional tests to find out the cause of their symptoms. Their 17-OHP values at newborn screening for CAH were reconsidered. RESULTS: We identified 330 patients (269 females, 61 males) with premature pubarche. All these children had a normal 17-OHP at newborn screening with the exception of a child, born preterm and not affected by CAH. CONCLUSIONS: An elevated 17-OHP at newborn screening is not a predictive factor for premature pubarche. A likely cause of increased 17 OHP level at screening is an immaturity of adrenal gland or a neonatal stress. Therefore a strict follow up of these neonates during childhood is not necessary. PMID- 29338784 TI - Advancing STI priorities in the SDG era: priorities for action. AB - The Sustainable Development Goals present an opportunity to reimagine and then reconfigure the approach to controlling sexually transmitted infections (STIs). The predilection of STIs for women and for vulnerable populations means that services that ameliorate STIs, by their nature, enhance equity, a key focus of the goals. Given the considerable breadth and depth of the goals, it is important to locate points of convergence between the SDGs and STIs, further craft synergies with HIV and select a few population groups and settings to prioritise. There are many opportunities for STI aficionados in this era to advance the field and global control of these infections. PMID- 29338785 TI - Benefits of VCE-003.2, a cannabigerol quinone derivative, against inflammation driven neuronal deterioration in experimental Parkinson's disease: possible involvement of different binding sites at the PPARgamma receptor. AB - BACKGROUND: Neuroprotection with cannabinoids in Parkinson's disease (PD) has been afforded predominantly with antioxidant or anti-inflammatory cannabinoids. In the present study, we investigated the anti-inflammatory and neuroprotective properties of VCE-003.2, a quinone derivative of the non-psychotrophic phytocannabinoid cannabigerol (CBG), which may derive its activity at the peroxisome proliferator-activated receptor-gamma (PPARgamma). The compound is also an antioxidant. METHODS: We evaluated VCE-003.2 in an in vivo [mice subjected to unilateral intrastriatal injections of lipopolysaccharide (LPS)] model of PD, as well as in in vitro (LPS-exposed BV2 cells and M-213 cells treated with conditioned media generated from LPS-exposed BV2 cells) cellular models. The type of interaction of VCE-003.2 at the PPARgamma receptor was furtherly investigated in bone marrow-derived human mesenchymal stem cells (MSCs) and sustained with transcriptional assays and in silico docking studies. RESULTS: VCE-003.2 has no activity at the cannabinoid receptors, a fact that we confirmed in this study using competition studies. The administration of VCE-003.2 to LPS lesioned mice attenuated the loss of tyrosine hydroxylase (TH)-containing nigrostriatal neurons and, in particular, the intense microgliosis provoked by LPS in the substantia nigra, measured by Iba-1/Cd68 immunostaining. The analysis by qPCR of proinflammatory mediators such as tumor necrosis factor-alpha (TNF alpha), interleukin-1beta (IL-1beta), and inducible nitric oxide synthase (iNOS) in the striatum showed they were markedly elevated by the LPS lesion and strongly reduced by the treatment with VCE-003.2. The effects of VCE-003.2 in LPS-lesioned mice implied the activation of PPARgamma receptors, as they were attenuated when VCE-003.2 was co-administered with the PPARgamma inhibitor T0070907. We then moved to some in vitro approaches, first to confirm the anti-inflammatory profile of VCE-003.2 in cultured BV2 cells exposed to LPS. VCE-003.2 was able to attenuate the synthesis and release of TNF-alpha and IL-1beta, as well as the induction of iNOS and cyclooxygenase-2 (COX-2) elicited by LPS in these cells. However, we found such effects were not reversed by GW9662, another classic PPARgamma antagonist. Next, we investigated the neuroprotective effects of VCE 003.2 in cultured M-213 neuronal cells exposed to conditioned media generated from LPS-exposed cultured BV2 cells. VCE-003.2 reduced M-213 cell death, but again, such effects were not reversed by T0070907. Using docking analysis, we detected that VCE-003.2 binds both the canonical and the alternative binding sites in the PPARgamma ligand-binding pocket (LBP). Functional assays further showed that T0070907 almost abolished PPARgamma transcriptional activity induced by rosiglitazone (RGZ), but it did not affect the activity of VCE-003.2 in a Gal4 Luc system. However, T0070907 inhibited the effects of RGZ and VCE-003.2 on the expression of PPARgamma-dependent genes upregulated in MSCs. CONCLUSIONS: We have demonstrated that VCE-003.2 is neuroprotective against inflammation-driven neuronal damage in an in vivo model of PD and in in vitro cellular models of neuroinflammation. Such effects might involve PPARgamma receptors, although in silico and in vitro experiments strongly suggest that VCE-003.2 targets PPARgamma by acting through two binding sites at the LBP, one that is sensitive to T0070907 (canonical binding site) and other that is not affected by this PPARgamma antagonist (alternative binding site). PMID- 29338787 TI - Correction to: Health effects of milder winters: a review of evidence from the United Kingdom. AB - CORRECTION: After publication of the article [1], it has been brought to our attention that there is an error in the abstract. The line that reads "a 1 degrees C fall during winter months led to reductions of 4.5%, 3.9% and 11.2%" should say "a 1 degrees C fall during winter months led to increases of 4.5%, 3.9% and 11.2%". PMID- 29338786 TI - A systematic review of transfusion-transmitted malaria in non-endemic areas. AB - BACKGROUND: Transfusion-transmitted malaria (TTM) is an accidental Plasmodium infection caused by whole blood or a blood component transfusion from a malaria infected donor to a recipient. Infected blood transfusions directly release malaria parasites in the recipient's bloodstream triggering the development of high risk complications, and potentially leading to a fatal outcome especially in individuals with no previous exposure to malaria or in immuno-compromised patients. A systematic review was conducted on TTM case reports in non-endemic areas to describe the epidemiological characteristics of blood donors and recipients. METHODS: Relevant articles were retrieved from Pubmed, EMBASE, Scopus, and LILACS. From each selected study the following data were extracted: study area, gender and age of blood donor and recipient, blood component associated with TTM, Plasmodium species, malaria diagnostic method employed, blood donor screening method, incubation period between the infected transfusion and the onset of clinical symptoms in the recipient, time elapsed between the clinical symptoms and the diagnosis of malaria, infection outcome, country of origin of the blood donor and time of the last potential malaria exposure. RESULTS: Plasmodium species were detected in 100 TTM case reports with a different frequency: 45% Plasmodium falciparum, 30% Plasmodium malariae, 16% Plasmodium vivax, 4% Plasmodium ovale, 2% Plasmodium knowlesi, 1% mixed infection P. falciparum/P. malariae. The majority of fatal outcomes (11/45) was caused by P. falciparum whilst the other fatalities occurred in individuals infected by P. malariae (2/30) and P. ovale (1/4). However, non P. falciparum fatalities were not attributed directly to malaria. The incubation time for all Plasmodium species TTM case reports was longer than what expected in natural infections. This difference was statistically significant for P. malariae (p = 0.006). A longer incubation time in the recipient together with a chronic infection at low parasite density of the donor makes P. malariae a subtle but not negligible risk for blood safety aside from P. falciparum. CONCLUSIONS: TTM risk needs to be taken into account in order to enhance the safety of the blood supply chain from donors to recipients by means of appropriate diagnostic tools. PMID- 29338788 TI - High-throughput immunophenotypic characterization of bone marrow- and cord blood derived mesenchymal stromal cells reveals common and differentially expressed markers: identification of angiotensin-converting enzyme (CD143) as a marker differentially expressed between adult and perinatal tissue sources. AB - BACKGROUND: Mesenchymal stromal cells (MSC) are a heterogeneous population of multipotent progenitors used in the clinic because of their immunomodulatory properties and their ability to differentiate into multiple mesodermal lineages. Although bone marrow (BM) remains the most common MSC source, cord blood (CB) can be collected noninvasively and without major ethical concerns. Comparative studies comprehensively characterizing the MSC phenotype across several tissue sources are still lacking. This study provides a 246-antigen immunophenotypic analysis of BM- and CB-derived MSC aimed at identifying common and strongly expressed MSC markers as well as the existence of discriminating markers between the two sources. METHODS: BM-MSC (n = 4) were expanded and analyzed as bulk (n = 6) or single clones isolated from the bulk culture (n = 3). CB-MSC (n = 6) were isolated and expanded as single clones in 5/6 samples. The BM-MSC and CB-MSC phenotype was investigated by flow cytometry using a panel of 246 monoclonal antibodies. To define the markers common to both sources, those showing the smallest variation between samples (coefficient of variation of log2 fold increase <= 0.5, n = 59) were selected for unsupervised hierarchical cluster analysis (HCL). Differentially expressed markers were identified by directly comparing the expression of all 246 antigens between BM-MSC and CB-MSC. RESULTS: Based on HCL, 18 markers clustered as strongly expressed in BM-MSC and CB-MSC, including alpha-smooth muscle antigen (SMA), beta-2-microglobulin, CD105, CD13, CD140b, CD147, CD151, CD276, CD29, CD44, CD47, CD59, CD73, CD81, CD90, CD98, HLA ABC, and vimentin. All except CD140b and alpha-SMA were suitable for the specific identification of ex-vivo expanded MSC. Notably, only angiotensin-converting enzyme (CD143) was exclusively expressed on BM-MSC. CD143 expression was tested on 10 additional BM-MSC and CB-MSC and on 10 umbilical cord- and adipose tissue derived MSC samples, confirming that its expression is restricted to adult sources. CONCLUSIONS: This is the first study that has comprehensively compared the phenotype of BM-MSC and CB-MSC. We have identified markers that could complement the minimal panel proposed for the in-vitro MSC definition, being shared and strongly expressed by BM- and CB-derived MSC. We have also identified CD143 as a marker exclusively expressed on MSC derived from adult tissue sources. Further studies will elucidate the biological role of CD143 and its potential association with tissue-specific MSC features. PMID- 29338790 TI - Morphometric characterisation of human tracheas: focus on cartilaginous ring variation. AB - PURPOSE: Details regarding tracheal anatomy are currently lacking, with existing literature focussing mainly on the cricoid-tracheal region or the carina. External gross anatomy and internal morphology throughout the entire trachea is important for normal physiological functioning and various clinical applications such as designs for tracheal implants or endotracheal devices. OBJECTIVE: To determine quantitative and qualitative characteristics of gross tracheal and individual tracheal ring anatomy. METHOD: 10 tracheas were harvested from formaldehyde-fixed cadavers. Tracheal length, height and inter-ring distance were measured from complete tracheas. Individual rings were excised and the following measurements were taken at three points on the ring: thickness, width, and antero posterior (A-P) length. RESULTS: The average tracheal length was 10.38 +/- 0.85 cm with a mean of 19 +/- 3 rings per trachea. The average width and A-P diameter of tracheal lumens were 17.31 +/- 2.57 and 17.27 +/- 2.56 mm, with a width-AP ratio of 1.00 ('C' shaped ring). The A-P diameter shows a trend of narrowing slightly from the upper 1/3 to the lower 1/3 of the trachea. While majority of tracheal rings consisted of the expected 'C' shape, more than 41% of the 147 counted rings consisted of abnormally shaped rings which were further analysed. CONCLUSION: This study provides further details regarding tracheal anatomy which will be useful for implant design. Of interest for anatomists, is the marked variability in tracheal ring morphology which could be further characterised in larger studies. PMID- 29338791 TI - Associations of the hypertension-related single nucleotide polymorphism rs11191548 with high-density lipoprotein cholesterol and leptin in Chinese children. AB - BACKGROUND: The genome-wide association study has founded hypertension-related single nucleotide polymorphism (SNP) rs11191548 near CYP17A1 encoding a key enzyme involved in steroid metabolism, but the molecular mechanisms are not understood and the associations of the SNP with hypertension-related traits are not fully described, especially in children. The aim of the present study is to investigate the associations between the SNP and two hypertension-related traits, lipids and leptin. METHODS: We genotyped the SNP in Beijing Child and Adolescent Metabolic Syndrome (BCAMS) study. A total of 3503 children participated in the study. RESULTS: The SNP rs11191548 was significantly associated with high-density lipoprotein cholesterol (HDL) (P = 0.014 and 0.028, respectively) and leptin (P = 0.011 and 0.026, respectively) under an additive model after adjustment for age, gender, and systolic blood pressure (SBP) or diastolic blood pressure (DBP). There was a statistically significant association of rs11191548 with high leptin after adjustment for age, gender, and SBP or DBP. The P-values remain significant after correction for multiple testing. CONCLUSIONS: We demonstrate for the first time that the SNP rs11191548 near CYP17A1 is associated with HDL and leptin in Chinese children. These novel findings provide important evidence that HDL and leptin maybe possibly mediate the process of CYP17A1 involved in hypertension. PMID- 29338789 TI - Diagnosis, treatment, and response assessment in solitary plasmacytoma: updated recommendations from a European Expert Panel. AB - Solitary plasmacytoma is an infrequent form of plasma cell dyscrasia that presents as a single mass of monoclonal plasma cells, located either extramedullary or intraosseous. In some patients, a bone marrow aspiration can detect a low monoclonal plasma cell infiltration which indicates a high risk of early progression to an overt myeloma disease. Before treatment initiation, whole body positron emission tomography-computed tomography or magnetic resonance imaging should be performed to exclude the presence of additional malignant lesions. For decades, treatment has been based on high-dose radiation, but studies exploring the potential benefit of systemic therapies for high-risk patients are urgently needed. In this review, a panel of expert European hematologists updates the recommendations on the diagnosis and management of patients with solitary plasmacytoma. PMID- 29338793 TI - The institutional context of tobacco production in Zambia. AB - BACKGROUND: Tobacco production is said to be an important contributor to Zambia's economy in terms of labour and revenue generation. In light of Zambia's obligations under the WHO Framework Convention of Tobacco Control (FCTC) we examined the institutional actors in Zambia's tobacco sector to better understand their roles and determine the institutional context that supports tobacco production in Zambia. METHODS: Findings from 26 qualitative, semi-structured individual or small-group interviews with key informants from governmental, intergovernmental and non-governmental organisations were analysed, along with data and information from published literature. RESULTS: Although Zambia is obligated under the FCTC to take steps to reduce tobacco production, the country's weak economy and strong tobacco interests make it difficult to achieve this goal. Respondents uniformly acknowledged that growing the country's economy and ensuring employment for its citizens are the government's top priorities. Lacklustre coordination and collaboration between the institutional actors, both within and outside government, contributes to an environment that helps sustain tobacco production in the country. A Tobacco Products Control Bill has been under review for a number of years, but with no supply measures included, and with no indication of when or whether it will be passed. CONCLUSIONS: As with other low income countries involved in tobacco production, there is inconsistency between Zambia's economic policy to strengthen the country's economy and its FCTC commitment to regulate and control tobacco production. The absence of a whole-of government approach towards tobacco control has created an institutional context of duelling objectives, with some government ministries working at cross-purposes and tobacco interests left unchecked. With no ultimate coordinating authority, this industry risks being run according to the desire and demands of multinational tobacco companies, with few, if any, checks against them. PMID- 29338794 TI - A SYSTEMATIC REVIEW OF GROUP WALKING IN PHYSICALLY HEALTHY PEOPLE TO PROMOTE PHYSICAL ACTIVITY. AB - BACKGROUND: Walking is a good way to meet physical activity guidelines. We examined the effectiveness of walking in groups compared with walking alone or inactive controls in physically healthy adults on physical activity and quality of life. (PROSPERO CRD42016033752). METHODS: We searched Medline, Embase, Cinahl, Web of Knowledge Science Citation Index, and Cochrane CENTRAL until March 2016, for any comparative studies, in physically healthy adults, of walking in groups compared with inactive controls or walking alone, reporting any measure of physical activity. We searched references from recent relevant systematic reviews. Two reviewers checked study eligibility and independently extracted data. Disagreements were resolved through discussion. Quality was assessed using likelihood of selection, performance, attrition, and detection biases. Meta analysis was conducted using Review Manager 5.3. RESULTS: From 1,404 citations, 18 studies were included in qualitative synthesis and 10 in meta-analyses. Fourteen compared group walking to inactive controls and four to walking alone. Eight reported more than one measure of physical activity, none reported according to current guidelines. Group walking compared with inactive controls increased follow-up physical activity (9 randomized controlled trials, standardized mean difference [SMD] 0.58 [95 percent confidence interval {CI}, 0.34-0.82] to SMD 0.43 [95 percent CI, 0.20-0.66]). Compared with walking alone, studies were too few and too heterogeneous to conduct meta-analysis, but the trend was improved physical activity at follow-up for group walking participants. Seven (all inactive control) reported quality-of-life: five showed statistically significantly improved scores. DISCUSSION: Better evidence may encourage government policy to promote walking in groups. Standardized physical activity outcomes need to be reported in research. PMID- 29338792 TI - Critical inhaler errors in asthma and COPD: a systematic review of impact on health outcomes. AB - BACKGROUND: Inhaled drug delivery is the cornerstone treatment for asthma and chronic obstructive pulmonary disease (COPD). However, use of inhaler devices can be challenging, potentially leading to critical errors in handling that can significantly reduce drug delivery to the lungs and effectiveness of treatment. METHODS: A systematic review was conducted to define 'critical' errors and their impact on health outcomes and resource use between 2004 and 2016, using key search terms for inhaler errors in asthma and COPD (Search-1) and associated health-economic and patient burden (Search-2). RESULTS: Search-1 identified 62 manuscripts, 47 abstracts, and 5 conference proceedings (n = 114 total). Search-2 identified 9 studies. We observed 299 descriptions of critical error. Age, education status, previous inhaler instruction, comorbidities and socioeconomic status were associated with worse handling error frequency. A significant association was found between inhaler errors and poor disease outcomes (exacerbations), and greater health-economic burden. CONCLUSIONS: We have shown wide variations in how critical errors are defined, and the evidence shows an important association between inhaler errors and worsened health outcomes. Given the negative impact diminished disease outcomes impose on resource use, our findings highlight the importance of achieving optimal inhaler technique, and a need for a consensus on defining critical and non-critical errors. PMID- 29338795 TI - The first report of Xenorhabdus indica from Steinernema pakistanense: co phylogenetic study suggests co-speciation between X. indica and its steinernematid nematodes. AB - During a survey in agricultural fields of the sub-humid region of Meerut district, India, two strains of entomopathogenic nematodes, labelled CS31 and CS32, were isolated using the Galleria baiting technique. Based on morphological and morphometric studies, and molecular data, the nematodes were identified as Steinernema pakistanense, making this finding the first report of this species from India. For the first time, we performed a molecular and biochemical characterization of the bacterial symbiont of S. pakistanense. Furthermore, a co phylogenetic analysis of the bacteria from the monophyletic clade containing a symbiont of S. pakistanense, together with their nematode hosts, was conducted, to test the degree of nematode-bacteria co-speciation. Both isolates were also tested in a laboratory assay for pathogenicity against two major pests, Helicoverpa armigera and Spodoptera litura. The morphology of the Indian isolates corresponds mainly to the original description, with the only difference being the absence of a mucron in first-generation females and missing epiptygmata in the second generation. The sequences of bacterial recA and gyrB genes have shown that the symbiont of S. pakistanense is closely related to Xenorhabdus indica, which is associated with some other nematodes from the 'bicornutum' group. Co phylogenetic analysis has shown a remarkable congruence between the nematode and bacterial phylogenies, suggesting that, in some lineages within the Steinernema / Xenorhabdus complex, the nematodes and bacteria have undergone co-speciation. In the virulence assay, both strains caused a 100% mortality of both tested insects after 48 h, even at the lowest doses of 25 infective juveniles per insect, suggesting that S. pakistanense could be considered for use in the biocontrol of these organisms in India. PMID- 29338796 TI - Cortical morphology development in patients with 22q11.2 deletion syndrome at ultra-high risk of psychosis. AB - BACKGROUND: Patients with 22q11.2 deletion syndrome (22q11DS) present a high risk of developing psychosis. While clinical and cognitive predictors for the conversion towards a full-blown psychotic disorder are well defined and largely used in practice, neural biomarkers do not yet exist. However, a number of investigations indicated an association between abnormalities in cortical morphology and higher symptoms severities in patients with 22q11DS. Nevertheless, few studies included homogeneous groups of patients differing in their psychotic symptoms profile. METHODS: In this study, we included 22 patients meeting the criteria for an ultra-high-risk (UHR) psychotic state and 22 age-, gender- and IQ matched non-UHR patients. Measures of cortical morphology, including cortical thickness, volume, surface area and gyrification, were compared between the two groups using mass-univariate and multivariate comparisons. Furthermore, the development of these measures was tested in the two groups using a mixed-model approach. RESULTS: Our results showed differences in cortical volume and surface area in UHR patients compared with non-UHR. In particular, we found a positive association between surface area and the rate of change of global functioning, suggesting that higher surface area is predictive of improved functioning with age. We also observed accelerated cortical thinning during adolescence in UHR patients with 22q11DS. CONCLUSIONS: These results, although preliminary, suggest that alterations in cortical volume and surface area as well as altered development of cortical thickness may be associated to a greater probability to develop psychosis in 22q11DS. PMID- 29338797 TI - Maternal early pregnancy obesity and depressive symptoms during and after pregnancy. AB - BACKGROUND: Previous studies have linked maternal obesity with depressive symptoms during and after pregnancy. It remains unknown whether obesity associates with consistently elevated depressive symptoms throughout pregnancy, predicts symptoms postpartum when accounting for antenatal symptoms, and if co morbid hypertensive and diabetic disorders add to these associations. We addressed these questions in a sample of Finnish women whom we followed during and after pregnancy. METHODS: Early pregnancy body mass index, derived from the Finnish Medical Birth Register and hospital records in 3234 PREDO study participants, was categorized into underweight (<18.5 kg/m2), normal weight (18.5 24.99 kg/m2), overweight (25-29.99 kg/m2), and obese (?30 kg/m2) groups. The women completed the Center for Epidemiological Studies Depression Scale biweekly during pregnancy, and at 2.4 (s.d. = 1.2) and/or 28.2 (s.d. = 4.2) weeks after pregnancy. RESULTS: In comparison to normal weight women, overweight, and obese women reported higher levels of depressive symptoms and had higher odds of clinically significant depressive symptoms during (23% and 43%, respectively) and after pregnancy (22% and 36%, respectively). Underweight women had 68% higher odds of clinically significant depressive symptoms after pregnancy. Overweight and obesity also predicted higher depressive symptoms after pregnancy in women not reporting clinically relevant symptomatology during pregnancy. Hypertensive and diabetic disorders did not explain or add to these associations. CONCLUSIONS: Maternal early pregnancy overweight and obesity and depressive symptoms during and after pregnancy are associated. Mental health promotion should be included as an integral part of lifestyle interventions in early pregnancy obesity and extended to benefit also overweight and underweight women. PMID- 29338798 TI - High diversity and low genetic structure of feather mites associated with a phenotypically variable bird host. AB - Obligate symbionts may be genetically structured among host individuals and among phenotypically distinct host populations. Such processes may in turn determine within-host genetic diversity of symbionts, which is relevant for understanding symbiont population dynamics. We analysed the population genetic structure of two species of feather mites (Proctophyllodes sylviae and Trouessartia bifurcata) in migratory and resident blackcaps Sylvia atricapilla that winter sympatrically. Resident and migratory hosts may provide mites with habitats of different qualities, what might promote specialization of mite populations. We found high genetic diversity of within-host populations for both mite species, but no sign of genetic structure of mites between migratory and resident hosts. Our results suggest that, although dispersal mechanisms between hosts during the non-breeding season are unclear, mite populations are not limited by transmission bottlenecks that would reduce genetic diversity among individuals that share a host. Additionally, there is no evidence that host phenotypic divergence (associated with the evolution of migration and residency) has promoted the evolution of host specialist mite populations. Unrestricted dispersal among host types may allow symbiotic organisms to avoid inbreeding and to persist in the face of habitat heterogeneity in phenotypically diverse host populations. PMID- 29338799 TI - Going it Alone: A Scoping Review of Unbefriended Older Adults. AB - Older adults who have reduced decision-making capacity and no family or friends to compensate for these deficiencies are known as unbefriended and require a public guardian. The purpose of this study was to review the peer-reviewed and grey literature to determine the scope of available research on unbefriended older adults in Canada and the United States. We found limited research examining unbefriended older adults. No Canadian studies or reports were located. Unbefriended older adults were childless or had fewer children, were more cognitively impaired, and were older than older adults who were not unbefriended. These findings demonstrate a stark scarcity of studies on unbefriended older adults. Research is urgently needed using standardized data collection of guardianship status in order to enable studies of the prevalence of public guardianship in Canada. PMID- 29338800 TI - A Preliminary Investigation of Pathways to Inflated Responsibility Beliefs in Children with Obsessive Compulsive Disorder. AB - BACKGROUND: Cognitive theorists posit that inflated responsibility beliefs contribute to the development of obsessive compulsive disorder (OCD). Salkovskis et al. (1999) proposed that experiencing heightened responsibility, overprotective parents and rigid rules, and thinking one influenced or caused a negative life event act as 'pathways' to the development of inflated responsibility beliefs, thereby increasing risk for OCD. Studies in adults with OCD and non-clinical adolescents support the link between these experiences and responsibility beliefs (Coles et al., 2015; Halvaiepour and Nosratabadi, 2015), but the theory has never been tested in youth with current OCD. AIMS: We provided an initial test of the theory by Salkovskis et al. (1999) in youth with OCD. We predicted that childhood experiences proposed by Salkovskis et al. (1999) would correlate positively with responsibility and harm beliefs and OCD symptom severity. METHOD: Twenty youth with OCD (age 9-16 years) completed a new child report measure of the experiences hypothesized by Salkovskis et al. (1999), the Pathways to Inflated Responsibility Beliefs Scale-Child Version (PIRBS-CV). Youth also completed the Obsessive Beliefs Questionnaire-Child Version (Coles et al., 2010) and the Obsessive Compulsive Inventory-Child Version (Foa et al., 2010). RESULTS: Consistent with hypotheses, the PIRBS-CV was significantly related to responsibility and harm beliefs and OCD symptom severity. CONCLUSIONS: Results provide initial support for the theory proposed by Salkovskis et al. (1999) as applied to youth with OCD. Future studies are needed to further assess the model in early-onset OCD. PMID- 29338801 TI - How immediate and significant is the outcome of training on diversified diets, hygiene and food safety? An effort to mitigate child undernutrition in rural Malawi. AB - OBJECTIVE: The present study examined the impacts of training on nutrition, hygiene and food safety designed by the Nutrition Working Group, Child Survival Collaborations and Resources Group (CORE). DESIGN: Adapted from the 21d Positive Deviance/Hearth model, mothers were trained on the subjects of appropriate complementary feeding, water, sanitation and hygiene (WASH) practices, and aflatoxin contamination in food. To assess the impacts on child undernutrition, a randomised controlled trial was implemented on a sample of 179 mothers and their children (<2 years old) in two districts of Malawi, namely Mzimba and Balaka. Settings A 21d intensive learning-by-doing process using the positive deviance approach. SUBJECTS: Malawian children and mothers. RESULTS: Difference-in difference panel regression analysis revealed that the impacts of the comprehensive training were positive and statistically significant on the Z scores for wasting and underweight, where the effects increased constantly over time within the 21d time frame. As for stunting, the coefficients were not statistically significant during the 21d programme, although the level of significance started increasing in 2 weeks, indicating that stunting should also be alleviated in a slightly longer time horizon. CONCLUSIONS: The study clearly suggests that comprehensive training immediately guides mothers into improved dietary and hygiene practices, and that improved practices take immediate and progressive effects in ameliorating children's undernutrition. PMID- 29338802 TI - Separating Common from Unique Variance Within Emotional Distress: An Examination of Reliability and Relations to Worry. AB - BACKGROUND: High comorbidity rates among emotional disorders have led researchers to examine transdiagnostic factors that may contribute to shared psychopathology. Bifactor models provide a unique method for examining transdiagnostic variables by modelling the common and unique factors within measures. Previous findings suggest that the bifactor model of the Depression Anxiety and Stress Scale (DASS) may provide a method for examining transdiagnostic factors within emotional disorders. AIMS: This study aimed to replicate the bifactor model of the DASS, a multidimensional measure of psychological distress, within a US adult sample and provide initial estimates of the reliability of the general and domain-specific factors. Furthermore, this study hypothesized that Worry, a theorized transdiagnostic variable, would show stronger relations to general emotional distress than domain-specific subscales. METHOD: Confirmatory factor analysis was used to evaluate the bifactor model structure of the DASS in 456 US adult participants (279 females and 177 males, mean age 35.9 years) recruited online. RESULTS: The DASS bifactor model fitted well (CFI = 0.98; RMSEA = 0.05). The General Emotional Distress factor accounted for most of the reliable variance in item scores. Domain-specific subscales accounted for modest portions of reliable variance in items after accounting for the general scale. Finally, structural equation modelling indicated that Worry was strongly predicted by the General Emotional Distress factor. CONCLUSIONS: The DASS bifactor model is generalizable to a US community sample and General Emotional Distress, but not domain-specific factors, strongly predict the transdiagnostic variable Worry. PMID- 29338803 TI - Socio-demographic inequalities in the clinical characteristics of dengue haemorrhagic fever in the city of Rio de Janeiro, Brazil, 2007-2008. AB - In 2007-2008, the city of Rio de Janeiro underwent an epidemiological change, with increases in the incidence in children and in severe forms of dengue. To describe the clinical profile and spatial distribution of dengue we performed an ecological study based on dengue surveillance data using the Brazilian classification (2005): dengue fever, dengue haemorrhagic fever (DHF) and dengue with complications. chi 2 test was used to describe the clinical and socio demographic variables (P < 0.05). Spatial distribution of incidence and case fatality was explored with thematic maps, Moran and Geary indices (P < 0.05). Of the total of 151 527 dengue cases, 38 808 met the inclusion criteria; 42.4% <18 years; 22.9% dengue with complications and 2.7% DHF. Case-fatality was higher in infants (1.4%) and in DHF (7.7%). Bleeding was more frequent in adolescents and adults while plasma leakage was more common in preschoolers and schoolchildren. The highest incidence was found in the West Zone of the city, in a different area from that of the worst case-fatality (P < 0.05). Although the incidence of DHF was higher in schoolchildren, infants showed higher case-fatality. The area with the highest case-fatality did not present the highest incidence, which suggests problems in the organization of health services. PMID- 29338804 TI - Public health response to a measles outbreak on a university campus in Australia, 2015. AB - This report describes the effective public health response to a measles outbreak involving a university campus in Brisbane, Australia. Eleven cases in total were notified, mostly university students. The public health response included targeted measles vaccination clinics which were established on campus and focused on student groups most likely to have been exposed. The size of the university population, social interaction between students on and off campus, as well as limited vaccination records for the university community presented challenges for the control of this extremely infectious illness. We recommend domestic students ensure vaccinations are current prior to matriculation. Immunisation information should be included in university student enrolment packs. Incoming international students should ensure routine vaccinations are up-to-date prior to arrival in Australia, thereby reducing the risk of importation of measles and other infectious diseases. PMID- 29338805 TI - Risk factors for infectiousness of patients with tuberculosis: a systematic review and meta-analysis. AB - We performed a systematic review and meta-analyses of studies assessing tuberculosis (TB) patient-related risk factors for transmission of Mycobacterium tuberculosis infection. Meta-analyses were conducted for sputum smear-positivity, lung cavitation and HIV seropositivity of index patients with both crude and adjusted odds ratios (AORs) pooled using random effect models. Thirty-seven studies were included in the review. We found that demographic characteristics such as age and sex were not significant risk factors, while behaviours such as smoking and alcohol intake were associated with infectiousness although inconsistently. Treatment delay of >28 days was a significant predictor of greater infectiousness. Contacts of sputum smear-positive index patients were found to be more likely to be infected than contacts of sputum smear-negative patients, with a pooled AOR of 2.15 (95% confidence interval (CI) 1.47-3.17, I 2 = 38%). Similarly, contacts of patients with the cavitary disease were around twice as likely to be infected as contacts of patients without cavitation (pooled AOR 1.9, 95% CI 1.26-2.84, I 2 = 63%). In contrast, HIV seropositive patients were associated with few contact infections than HIV seronegative patients (AOR 0.45, 95% CI 0.26-0.80, I 2 = 52%). In conclusion, behavioural and clinical characteristics of TB patients can be used to identify highly infectious patients for targeted interventions. PMID- 29338806 TI - Cancer pain management needs and perspectives of patients from Chinese backgrounds: a systematic review of the Chinese and English literature. AB - OBJECTIVE: More than half of all cancer patients experience unrelieved pain. Culture can significantly affect patients' cancer pain-related beliefs and behaviors. Little is known about cultural impact on Chinese cancer patients' pain management. The objective of this review was to describe pain management experiences of cancer patients from Chinese backgrounds and to identify barriers affecting their pain management. METHOD: A systematic review was conducted adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Studies were included if they reported pain management experiences of adult cancer patients from Chinese backgrounds. Five databases were searched for peer-reviewed articles published in English or Chinese journals between1990 and 2015. The quality of included studies was assessed using Joanna Briggs Institution's appraisal tools. RESULTS: Of 3,904 identified records, 23 articles met criteria and provided primary data from 6,110 patients. Suboptimal analgesic use, delays in receiving treatment, reluctance to report pain, and/or poor adherence to prescribed analgesics contributed to the patients' inadequate pain control. Patient-related barriers included fatalism, desire to be good, low pain control belief, pain endurance beliefs, and negative effect beliefs. Patients and family shared barriers about fear of addiction and concerns on analgesic side effects and disease progression. Health professional-related barriers were poor communication, ineffective management of pain, and analgesic side effects. Healthcare system-related barriers included limited access to analgesics and/or after hour pain services and lack of health insurance. Significance of results Chinese cancer patients' misconceptions regarding pain and analgesics may present as the main barriers to optimal pain relief. Findings of this review may inform health interventions to improve cancer pain management outcomes for patients from Chinese backgrounds. Future studies on patients' nonpharmacology intervention related experiences are required to inform multidisciplinary and biopsychosocial approaches for culturally appropriate pain management. PMID- 29338807 TI - Genetic diversity of Blastocystis in non-primate animals. AB - Blastocystis is an anaerobic protist, commonly inhabiting the intestinal tract of both humans and other animals. Blastocystis is extremely diverse comprising 17 genetically distinct subtypes in mammals and birds. Pathogenicity of this enteric microbe is currently disputed and knowledge regarding its distribution, diversity and zoonotic potential is fragmentary. Most research has focused on Blastocystis from primates, while sampling from other animals remains limited. Herein, we investigated the prevalence and distribution of Blastocystis in animals held within a conservation park in South East England. A total of 118 samples were collected from 27 vertebrate species. The barcoding region of the small-subunit ribosomal RNA was used for molecular identification and subtyping. Forty one per cent of the species were sequence positive for Blastocystis indicating a high prevalence and wide distribution among the animals in the park. Six subtypes were identified, one of which is potentially novel. Moreover, the majority of animals were asymptomatic carriers, suggesting that Blastocystis is not pathogenic in animals. This study provides a thorough investigation of Blastocystis prevalence within a wildlife park in the UK and can be used as a platform for further investigations on the distribution of other eukaryotic gut microbes. PMID- 29338808 TI - Ceratomyxa gracillima n. sp. (Cnidaria: Myxosporea) provides evidence of panmixia and ceratomyxid radiation in the Amazon basin. AB - We describe a new freshwater myxosporean species Ceratomyxa gracillima n. sp. from the gall bladder of the Amazonian catfish Brachyplatystoma rousseauxii; the first myxozoan recorded in this host. The new Ceratomyxa was described on the basis of its host, myxospore morphometry, ssrDNA and internal transcribed spacer region (ITS-1) sequences. Infected fish were sampled from geographically distant localities: the Tapajos River, Para State, the Amazon River, Amapa State and the Solimoes River, Amazonas State. Immature and mature plasmodia were slender, tapered at both ends, and exhibited vermiform motility. The ribosomal sequences from parasite isolates from the three localities were identical, and distinct from all other Ceratomyxa sequences. No population-level genetic variation was observed, even in the typically more variable ITS-1 region. This absence of genetic variation in widely separated parasite samples suggests high gene flow as a result of panmixia in the parasite populations. Maximum likelihood and maximum parsimony analyses placed C. gracillima n. sp. sister to Ceratomyxa vermiformis in a subclade together with Ceratomyxa brasiliensis and Ceratomyxa amazonensis, all of which have Amazonian hosts. This subclade, together with other Ceratomyxa from freshwater hosts, formed an apparently early diverging lineage. The Amazonian freshwater Ceratomyxa species may represent a radiation that originated during marine incursions into the Amazon basin that introduced an ancestral lineage in the late Oligocene or early Miocene. PMID- 29338810 TI - Detection of mcr-4 positive Salmonella enterica serovar Typhimurium in clinical isolates of human origin, Italy, October to November 2016. AB - In this study we report the detection of the recently described mcr-4 gene in two human isolates of Salmonella enterica serovar Typhimurium. The strains were isolated from faecal samples of two Italian patients with gastroenteritis, collected in 2016. The identified mcr-4 genes (variant mcr-4.2) differed from the mcr-4 gene originally described in a Salmonella strain of swine origin from Italy. Salmonella species could represent a hidden reservoir for mcr genes. PMID- 29338811 TI - Ongoing nationwide outbreak of Salmonella Agona associated with internationally distributed infant milk products, France, December 2017. AB - On 1 December 2017, an outbreak of Salmonella Agona infections among infants was identified in France. To date, 37 cases (median age: 4 months) and two further international cases have been confirmed. Five different infant milk products manufactured at one facility were implicated. On 2 and 10 December, the company recalled the implicated products; on 22 December, all products processed at the facility since February 2017. Trace-forward investigations indicated product distribution to 66 countries. PMID- 29338809 TI - Comparison of influenza vaccine effectiveness in preventing outpatient and inpatient influenza cases in older adults, northern Spain, 2010/11 to 2015/16. AB - IntroductionWe compared trivalent inactivated influenza vaccine effectiveness (VE) in preventing outpatient and inpatient influenza cases in Navarre, Spain. Methods: During seasons 2010/11 to 2015/16, community-dwelling patients with influenza-like illness aged 50 years or older were tested for influenza when attended by sentinel general practitioners or admitted to hospitals. The test negative design was used to estimate and compare the VE by healthcare setting. Results: We compared 1,242 laboratory-confirmed influenza cases (557 outpatient and 685 inpatient cases) and 1,641 test-negative controls. Influenza VE was 34% (95% confidence interval (CI): 6 to 54) in outpatients and 32% (95% CI: 15 to 45) in inpatients. VE in outpatients and inpatients was, respectively, 41% (95% CI: 1 to 65) and 36% (95% CI: 12 to 53) against A(H1N1)pdm09, 5% (95% CI: -58 to 43) and 22% (95% CI: -9 to 44) against A(H3N2), and 49% (95% CI, 6 to 73) and 37% (95% CI: 2 to 59) against influenza B. Trivalent inactivated influenza vaccine was not associated with a different probability of hospitalisation among influenza cases, apart from a 54% (95% CI: 10 to 76) reduction in hospitalisation of influenza A(H3N2) cases. Conclusions: On average, influenza VE was moderate and similar in preventing outpatient and inpatient influenza cases over six influenza seasons in patients above 50 years of age. In some instances of low VE, vaccination may still reduce the risk of hospitalisation in older adults with vaccine failure. PMID- 29338812 TI - Comprehensive assessment of the quality of Salmonella whole genome sequence data available in public sequence databases using the Salmonella in silico Typing Resource (SISTR). AB - Public health and food safety institutions around the world are adopting whole genome sequencing (WGS) to replace conventional methods for characterizing Salmonella for use in surveillance and outbreak response. Falling costs and increased throughput of WGS have resulted in an explosion of data, but questions remain as to the reliability and robustness of the data. Due to the critical importance of serovar information to public health, it is essential to have reliable serovar assignments available for all of the Salmonella records. The current study used a systematic assessment and curation of all Salmonella in the sequence read archive (SRA) to assess the state of the data and their utility. A total of 67 758 genomes were assembled de novo and quality-assessed for their assembly metrics as well as species and serovar assignments. A total of 42 400 genomes passed all of the quality criteria but 30.16 % of genomes were deposited without serotype information. These data were used to compare the concordance of reported and predicted serovars for two in silico prediction tools, multi-locus sequence typing (MLST) and the Salmonella in silico Typing Resource (SISTR), which produced predictions that were fully concordant with 87.51 and 91.91 % of the tested isolates, respectively. Concordance of in silico predictions increased when serovar variants were grouped together, 89.25 % for MLST and 94.98 % for SISTR. This study represents the first large-scale validation of serovar information in public genomes and provides a large validated set of genomes, which can be used to benchmark new bioinformatics tools. PMID- 29338813 TI - Note from the editors: As time goes by. PMID- 29338814 TI - The Use of Visual Examination for Determining the Presence of Gluten-Containing Grains in Gluten Free Oats and Other Grains, Seeds, Beans, Pulses, and Legumes. AB - Obtaining representative test samples for antibody-based testing is challenging when analyzing whole grains for gluten. When whole grains are ground into flour for testing, confocal microscopy studies have shown that gluten tends to exist as aggregates within the starch background, making single-sample testing inaccurate and complicating the ability to arrive at an accurate average from multiple samples. In addition, whole-grain products present a unique risk to gluten free consumers, in that any contamination is localized to specific servings rather than being distributed across the product lot. This makes parts-per-million values less relevant for whole-grain products. Intact grains, seeds, beans, pulses, and legumes offer an alternative opportunity for gluten detection, in that contaminating gluten-containing grains (GCGs) are visible and identifiable to the trained eye or properly calibrated optical sorting equipment. The purpose of the current study was to determine a Gluten Free Certification Organization threshold level for the maximum number of GCGs within a kilogram of nongluten grains sold as specially processed gluten free product and to determine the feasibility of this threshold by evaluating visual examination data from two major oat processors. PMID- 29338815 TI - Correlation between the Expression of High Temperature Requirement Serine Protease A1 in Nucleus Pulposus Tissue and the Degree of Intervertebral Disc Degeneration. AB - Objective To investigate the correlation between the expression level of high temperature requirement serine protease A1 (HtrA1) in nucleus pulposus and the degree of intervertebral disc degeneration (Pfirrmann grade).Methods Thirty-six patients who underwent excision of nucleus pulposus were examined by magnetic resonance imaging (MRI) before operation,and the Pfirrmann grading of all patients was performed according to the sagittal T2 weighted MRI.The expression of HtrA1 in nucleus pulposus tissue was detected by reverse transcription polymerase chain reaction and Western blot.The correlation between the expression level of HtrA1 in nucleus pulposus tissue and Pfirrmann grade was analyzed.Results MRI in all 36 patients showed that there were 3 cases of Pfirrmann grade I,10 cases of grade II,11 cases of grade III,7 cases of grade III,and 5 cases of grade V.The mRNA and protein expressions of HtrA1 in nucleus pulposus tissue increased with the increase of Pfirrmann grade.There were significant differences in the expression level of HtrA1 among different Pfirrmann grade groups (P<0.05) except for the difference between grade III and V (P>0.05).Spearman rank correlation analysis revealed that there was a rank correlation between expression level of HtrA1 and Pfirrmann grade (P<0.000 1).Conclusion The mRNA and protein expressions of HtrA1 in nucleus pulposus tissue increase with the increase of Pfirrmann grade,indicating HtrA1 is correlated with the degree of intervertebral disc degeneration. PMID- 29338816 TI - Fabrication of Isoniazid/Rifampicin/Poly L-lactic Acid Donut-shaped Implants via Three Dimensional Printing Technique. AB - Objective To investigate the possibility of manufacturing dual-drug loaded isoniazid/rifampicin/poly L-lactic acid (PLLA) implant with donut-shaped structure via three-dimensional (3D) printing technique and study the drug release characteristic and biocompatibility of the implant in vitro.Methods PLLA was crushed into particles with diameters around 75-100 MUm.Isoniazid and rifampicin bulk drugs were dissolved into the organic dissolvent respectively to be the binding liquid.The 3D printing machine fabricated the donut-shaped implant via binding the PLLA powder layer by layer.Dynamic socking method was used to study the in vitro release characteristics,and cell culture experiment was used to test the cytocompatibility of the implant.Results PLLA slow-release implants were made by using the PLLA powder as matrix and isoniazid/rifampicin organic solvent as binding liquid through 3D printing.The drugs in the implants distributed in nest under electron microscope.The concentrations of both drugs were still higher than the lowest effective bacteriostasis concentration after release for 32 days.Cytotoxicity and direct contact tests indicated that the implants had rare cytotoxicity and favorable biocompatibility. Conclusion The donut-shaped implants can be successfully fabricated using the 3D printing method,which offers a new method for the manufacturing of topical slow-release anti-tuberculosis drugs. PMID- 29338817 TI - Correlation of Stress Hyperglycemia after Ischemic Stroke with Early Vascular Cognitive Impairment. AB - Objective To investigate the influence and forecast value of stress hyperglycemia on the early vascular cognitive impairment (VCI) in stroke patients.Methods Totally 422 patients with acute non-diabetic stroke were divided into three groups according to the fasting plasma glucose level:the euglycemia group (<6.1 mmol/L),the mild stress hyperglycemia group (6.1-7.0 mmol/L),and the severe stress hyperglycemia group (>=7.0 mmol/L).Mini-mental state examination,Alzheimer's disease rating scale cognitive subscale,and clinical dementia rating scale were used to evaluate early cognition in post-stroke patients,and patients were divided into three groups accordingly:normal cognitive function group,mild VCI group,and vascular dementia group.Correlation analysis was carried out on the level of stress hyperglycemia and the degree of VCI.Results Of these 422 patients,stress hyperglycemia was identified in 62 cases (14.7%).The risk of stress hyperglycemia was higher in patients with a high degree of education [(8.39+/-3.85)years vs.(6.62+/-4.39)years,P=0.037)] or a history of cardiovascular disease (45.2% vs.18.3%,P=0.001).VCI was detected in 270 patients (64.0%).Age,sex,smoking,National Institute of Health Stroke Scale score,Hamilton Depression Rating Scale score,stress hyperglycemia,and history of cardiovascular disease were related with early VCI after non-diabetic ischemic stroke (P<0.05).Multivariate Logistic regression analysis showed that stress hyperglycemia was an independent risk factor for VCI in patients with non diabetic ischemic stroke (OR=3.086,95% CI=1.065-8.929).The risks of cognitive impairment in the mild stress hyperglycemia group and the severe stress hyperglycemia group were higher than that of the euglycemia group,while it was also higher in the severe stress hyperglycemia group than in the mild stress hyperglycemia group (61.11% vs.75.00% vs.90.91%).Stress hyperglycemia was positively correlated with the high risk of early cognitive impairment in stroke patients (rs=0.185,P=0.007).Conclusion There is a significant correlation between stress hyperglycemia and early VCI after ischemic stroke. PMID- 29338818 TI - Expression and Function of Long Non-coding RNA CASC19 in Colorectal Cancer. AB - Objective To investigate the expression, function and significance of long non coding RNA (lncRNA) CASC19 in colorectal cancer (CRC). Methods Real-time quantitative polymerase chain reaction was employed to determine the expression of CASC19 in 40 paired samples from CRC surgical specimens and 5 CRC cell lines. The correlations of CASC19 expression with clinicopathologic parameters were analyzed. Transwell assay was applied to detect the migration ability of CRC cells after the CASC19 expression was knocked down by small interfering RNA. Results The expression of CASC19 in colorectal cancer was significantly higher than those in adjacent normal mucosa tissues (t=5.527, P<0.000 1) and was associated with metastasis (P=0.044). Knockdown of CASC19 expression in CRC inhibited the migration ability of CRC in vitro. Conclusions The expression of CASC19 increases in CRC. CASC19 expression is not associated with age, gender, or tumor site/differentiation but with tumor size, lymph node metastasis, and distant metastasis, suggesting high CASC19 expression may promote CRC metastasis. PMID- 29338819 TI - In Vitro Efficacy of Continuous Mild High Temperature on the Biofilm Formation of Aspergillus Niger. AB - Objective To investigate whether continuous mild high temperature (increased temperature without causing significant damage to host cells) can inhibit the biofilm formation of Aspergillus niger (A.niger) and its vitality.Methods A.niger biofilms were formed on a coverslip in 24-well tissue culture plate and were checked at the time points 4,8,10,16,24,48 and 72 hours.Confocal laser scanning microscopy (CLSM) was used to image and quantify A.niger biofilm formation under three different continuous mild high temperatures at 37C,39C,and 41C.Furthermore,2,3-bis(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5 carboxanilide (XTT) assay was used to quantify the dynamic growth of A.niger biofilm under the above conditions.Results Compared with the culture condition 37C,CLSM analysis at 39C or 41C showed that higher temperature induced later germination at 4 hours (t=8.603,P=0.047;t=14.550,P=0.008),poorer hyphal elongation at 8 hours(t=35.118,P=0.039;t=63.450,P=0.006),poorer polar growth,and reduced biofilm thickness from 10 to 24 hours.The XTT assay showed that higher temperature (39C or 41C) lead to lower vitality at 10 hours,higher vitality at 16 hours,but finally lower vitality from 24 to 72 hours (t=24.262,P=0.038;t=7.556,P=0.031).Conclusion Continuous mild high temperature may have a negative regulatory effect on biofilm formation of A.niger and its vitality. PMID- 29338820 TI - Preoperative Evaluation of the Grade and Stability of Osteochondritis Dissecans of the Knee by Magnetic Resonance Imaging. AB - Objective To assess the diagnostic performance of magnetic resonance imaging (MRI) in the grading of osteochondritis dissecans (OCD) of the knee.Methods Totally 47 patients with OCD of the knee confirmed by arthroscopy were retrospectively enrolled in this study.The OCD lesions were classified into four stages according to classification system of the International Cartilage Repair Society.Two radiologists analyzed all MRI findings independently,and the results were compared with those of arthroscopy.Sensitivity,specificity,and accuracy were calculated.Kappa value were calculated to quantify inter-observer agreement of the diagnostic OCD grade between two doctors by MRI.Specificity,sensitivity,and accuracy of MRI criteria indicating instability for detection of OCD instability were calculated.Results Of these 47 patients with 48 OCD lesions,stages I,II,III,and III lesions were detected in 4,8,16,and 20 patients,respectively.The specificity,sensitivity,and accuracy for the diagnosis of OCD stability were 75.0% (83.3%),88.9% (86.1%),and 85.4% (85.4%) for observer l (2),and the agreement of OCD grade between these two readers was substantial with a Kappa value of 0.82.The specificity,sensitivity,and accuracy of MRI criteria for the detection of OCD instability including high T2 signal intensity at the interface between the OCD and the underlying bone,multiple cysts or a single cyst of>5 mm in diameter surrounding OCD lesions,high T2 signal intensity cartilage fracture line traversing the articular cartilage,and osteochondral defect were 83.3%,80.6%,and 81.3%;75.0%,72.2%,and 72.9%;66.7%,69.4%,and 68.8%;100%,86.1%,and 89.6%,respectively. Conclusions Osteochondral defect is the most specific MRI sign for diagnosing instable OCD of the knee,whereas osteochondral fracture line has the lowest accuracy.MRI is a useful method to evaluate the grade and stability of OCD of the knee. PMID- 29338821 TI - Factors Influencing Regional Cerebral Oxygen Saturation during One-lung Ventilation in Thoracic Surgery. AB - Objective To identify factors influencing regional cerebral oxygen saturation (rScO2) during one-lung ventilation (OLV) in thoracic surgery. Methods Totally 33 patients with an ASA physical status of 1-3 scheduled for elective thoracic surgery with one-lung ventilation under general anesthesia were recruited. After anesthesia was induced with propofol,fentanyl/sufentanil,and rocuronium. All patients received balanced anesthesia using sevoflurane. During OLV,volume controlled ventilation was used with a tidal volume of 6-7 ml/kg and an inspiration:expiration ratio of 1:1.5. The ventilator frequency was adjusted with a target end-tidal carbon dioxide partial pressure (PetCO2) between 35 mmHg and 45 mmHg. During the anesthesia,patients were maintained at a pulse oxygen saturation (SpO2) of>90%,systolic blood pressure (SBP) of>90 mmHg (or reducing no more than 30% of the basic values),heart rate (HR) of>50 beat/min,and hemoglobin concentration of>90 g/L. Changes of rScO2 were monitored with FORESIGHT probes by specialized researchers. Patients were classified into low rScO2 (L-rScO2) group (n=10) or high rScO2 (H-rScO2)group(n=23) according to whether the lowest intraoperative rScO2 was under 65% or 15% lower than the baseline values. We compared gender,age,body mass index (BMI),intraoperative hemoglobin level,and the values of peak airway pressure (Ppeak),SBP,PetCO2,and SpO2 when rScO2 dropped to the lowest level between these two groups. Results Statistically higher Ppeak and lower SBP were noted in the L-rScO2 group compared with H-rScO2 group (P=0.028,P=0.046). SpO2 was lower in the L-rScO2 group compared with H-rScO2 group,but the difference was not statistically significant (P=0.421). There was also no significant difference between the two groups according to age,BMI,SpO2,PetCO2,or hemoglobin level. Ppeak appeared to be a risk factor for rScO2 reduction during OLV,as shown by unconditioned Logistic regression analysis. Conclusion During OLV in thoracic surgery,Ppeak is a risk factor for rScO2 reduction. PMID- 29338822 TI - Assessment of Early Clopidogrel Therapy Use among Acute Myocardial Infarction Patients in Central-rural China in 2006 and 2011. AB - Objective To explore the application and influencing factors of early clopidogrel use in patients with acute myocardial infarction (AMI) in the central-rural region of China in 2006 and 2011. Methods A representative sample of patients in central-rural region of China admitted to hospital for AMI was created from a two stage random sampling. In the first phase,a simple random-sampling procedure was used to identify participating hospitals. In the second stage,we selected patients admitted to each participating hospitals for AMI with a systematic sampling approach. Then we obtained clinical information via central medical record abstraction for each patient. For analysis of early clopidogrel therapy (within 24 hours of admission) status,we used multilevel Logistical regression models with the use of generalized estimating equations. Results We identified 1464 patients eligible for early clopidogrel therapy. From 2006 to 2011,the early application rate of clopidogrel increased significantly,from 3.98% to 48.72% (P<0.0001). Logistic regression analysis showed that patients with hypertension were more likely to receive early clopidogrel(OR=1.65,95% CI=1.21 2.26,P=0.001),smokers were associated with greater likelihood to receive early clopidogrel(OR=1.87,95% CI=1.19-2.95,P=0.007),and patients with chest discomfort during hospitalization indicated association with higher likelihood of early clopidogrel use within 24 hours of admission (OR=2.17,95% CI=1.35-3.49,P=0.001). Conclusions Early clopidogrel use in AMI patients has been improved from 2006 to 2011. However,tremendous gap still exists between guidelines and clinical practice. Quality improvement initiatives are in urgent need to support further improvements in early clopidogrel use for AMI patients. PMID- 29338823 TI - Relationship of Methylation within Upper Stream Region of Transcription Starts Site of HOXA5 Gene with Neural Tube Defects. AB - Objective To investigate the relationship between the methylation level of transcription starts site (TSS) upper stream of homeobox gene and the neural tube defects (NTDs). Methods A case-control study of two stages was designed. In the first stage,10 cases and 8 controls were extracted,in whom Illumina Infinium Human Methylation 450 k genome-wide beadchip was used for the quantification of DNA methylation levels of brain and spinal tissue. In the second stage,differentially methylated region within HOXA5 gene was detected with a larger numbers of samples (52 cases and 23 controls). DNA of brain or spinal tissue was extracted,and Matrix-assisted laser desorption ionization time-of flight mass spectrometry technique of MassARRAY platform was employed for the validation of differentially methylated region of HOXA5 gene. Results In the first stage,27 CpG sites within TSS region of HOXA5 gene were found to be significantly hyper-methylated in case group compared to control group (P<0.05). In the second stage,a total of 10 CpG sites were analyzable within the differentially methylated region in the first stage. In the NTD case group,spinal bifida subgroup,and anencephaly subgroup,there were 7,6,and 2 sites with significantly higher methylation levels than that of control group (P<0.05). The average methylation level of TSS upper stream region within HOXA5 gene was higher in case group than control group [case group:(31.3+/-13.9)%,control group:(21.4+/ 9.7)%],and the odds ratio after adjusting gender of fetus and pregnant week was 1.09 (1.03-1.16). Conclusion Hypermethylation within TSS upper stream region of HOXA5 gene in fetus is associated with a higher risk of NTDs. PMID- 29338824 TI - Effects of Preoperative Isokinetic Eccentric Training and Whey Protein Isolate Supplement on Quadriceps Strength and Knee Function in Patients with Anterior Cruciate Ligament Rupture. AB - Objective To explore the effect of preoperative isokinetic eccentric training with or not whey protein isolate supplement before operation on lower limb muscle strength and knee function in patients with anterior cruciate ligament (ACL) rupture. Methods A total of 22 male volunteers aged 18-40 years with ACL rupture were recruited in outpatient service. With randomized block design,subjects were randomly assigned to isokinetic eccentric training (IE) group and isokinetic eccentric training with whey protein isolate supplement (IE+WPI) group. The IE group received isokinetic eccentric training of the injured limb on an isokinetic dynamometer under the guidance of physiatrist in laboratory before operation. There were 3-4 sets per day with 8-10 repetitions for each set,twice a week,with at least one day between sessions. The IE+WPI group were supplied with whey protein isolate 22 g per day on the basis of isokinetic eccentric training,taking breakfast or 30-60 minutes after the training. The intervention lasted for 6 weeks. Isokinetic muscle strength of limbs,the function and laxity of knee,the circumferences of thigh and knee,and the body composition were measured before and after the treatment. Results Compared with baseline,the peak torque (PT) of isokinetic-eccentric contraction (IE group:41.0%,P=0.018;IE+WPI group:46.7%,P=0.008) and the concentric contraction (IE group:29.6%,P=0.018;IE+WPI group:38.9%,P=0.038) of quadriceps in the two training groups significantly increased after isokinetic eccentric training. The Lysholm score increased significantly in IE+WPI group compared with baseline (P=0.018). Conclusions Isokinetic eccentric training before operation for ACL rupture patients can increase the strength of quadriceps and improve the function of knees. Protein isolate supplement can improve such effect. PMID- 29338825 TI - Efficacy of Rituximab for Patients with Chronic Lymphocytic Leukemia. AB - Objective To evaluate the efficacy of rituximab in treating chronic lymphocytic leukemia (CLL). Methods The clinical data of CLL patients receiving fludarabine,cyclophosphamide+/-rituximab (with or without rituximab) regimen or cyclophosphamide,vincristine,and prednisone+/-doxorubicin+/-rituximab regimen in our hospital from March 2000 to February 2015 were analyzed retrospectively. Therapeutic efficacies and survivals of patients treated with different regimens were evaluated and compared. Results The complete response (CR) rate and the overall response rate (ORR) in 72 patients (43.6%) treated with rituximab were significantly higher than those treated without rituximab (38.9% vs. 21.5%,P=0.015;83.3% vs. 60.2%,P=0.001). The median PFS and OS for patients treated with rituximab were 53.0 (27.0-79.0) months and 112.0 (81.1-142.9) months,and the median PFS and OS for patients treated without rituximab were 28.0 (18.3-37.7) months and 89.0(72.0-106.0),but the results were not statistically significant (P=0.094,P=0.109). According to the cytogenetic features,patients were further divided into high-risk subgroup (with chromosome 17p deletion or 11q deletion) and non-high-risk subgroup. And in the high-risk subgroup,the ORR of patients treated with rituximab was 86.4%,which was significantly higher than that in patients treated without rituximab (53.3%)(P=0.012);in the non-high-risk subgroup,the PFS was marginally prolonged in patients treated with rituximab,but the difference was not statistically significant(P=0.050). Conclusions Compared with traditional chemotherapy,the chemoimmunotherapies with rituximab result in higher CR rate and ORR in CLL patients. In patients without 17p deletion or 11q deletion,the use of rituximab can marginally prolong PFS. PMID- 29338826 TI - Application of the Dual-layer Spectral Detector CT in the CT Angiography of Superior Vena Cava. AB - Objective To evaluate the application of the dual-layer spectral detector CT in the CT angiography of superior vena cava (SVC). Methods Totally 30 consecutive patients who underwent chest enhanced CT in our center were enrolled in this study. Eight series of images were reconstructed,including the conventional images at 120 kVp and seven series of virtual monoenergetic spectral images at 40,50,60,70,80,90,and 100 keV. The regions of interest (ROIs) were placed at the level of the proximal end,middle part,and distal end in the SVC vessel. The CT values and standard deviations of these three ROIs and the lipid on prothroax wall were measured. The signal to noise ratio (SNR),contrast to noise ratio (CNR),and effective dose (ED) were calculated. In addition,the quality of images was evaluated by two blinded readers using a grading scheme. The differences in CT values,SNR,and CNR among groups were analyzed using the independent t-test. The quality of all images was compared using non-parametric test between two readers,and the consistency between two radiologists were evaluated by using Kappa (kappa) value. Results There was no significantly different attenuation value among three ROIs of the SVC for each monoenergetic images (all P>0.05). The SVC showed significantly higher attenuation value (223.51+/-40.35)HU,SNR 13.56+/ 4.18 and CNR 24.15+/-6.58 in the 40 keV group than in other keV groups and the conventional group [attenuation value:(97.70+/-13.85)HU;SNR:4.59+/ 1.41;CNR:9.69+/-2.81] (P<0.005). The mean ED was(2.04+/-0.63) mSv. The subjective diagnostic scores accessed from two radiologists were 1 (1,2) and 1 (1,2) (Z= 0.358,P=0.720). The subjective diagnostic quality values evaluated by two observers showed excellent consistency (kappa=0.863,P=0.000). Conclusion An optimal imaging of the SVC can be achieved on monoenergetic reconstructions at 40 keV by using the dual-layer spectral detector CT. PMID- 29338827 TI - Risk Factors of Intrauterine Adhesion after Hysteroscopic Resection of Endometrial Polyps. AB - Objective To analyze the risk factors of intrauterine adhesion (IUA) after hysteroscopic resection of endometrial polyps. Methods Totally 359 patients undergoing hysteroscopic resection of endometrial polyps from January 2013 to December 2016 were enrolled in this study. The clinical data of IUA group and non IUA group were compared. Univariate analysis was performed to identify the risk factors of IUA,and multivariate Logistic regression analysis was further performed to get the independent risk factors. Results Of these 359 patients,IUA occured after operation in 56 patients (15.60%). Univariate analysis showed underlying diseases (chi2=7.381,P=0.004),multiple polyps (chi2=3.376,P=0.040),uterus with uterine fibroids or endometrial hyperplasia (chi2=6.495,P=0.009),history of curettage(chi2=31.576,P=0.000),pelvic infection (chi2=8.582,P=0.001),intrauterine device (chi2=7.161,P=0.006),history of cesarean section (chi2=5.493,P=0.014),and multigravida were (chi2=16.886,P=0.000) the risk factors of IUA. Logistic regression analysis showed other diseases of uterus(chi2=19.542,P=0.026),history of curettage (chi2=29.614,P=0.000),pelvic infection (chi2=5.627,P=0.002),intrauterine device (chi2=11.342,P=0.08),history of cesarean section(chi2=8.549,P=0.035),and multigravida (chi2=15.493,P=0.000) were the independent risk factors of IUA after hysteroscopic resection of endometrial polyps. Conclusion Other diseases of uterus,history of curettage,pelvic infection,intrauterine device,history of cesarean section,and/or multigravida can increase the risk of IUA after hysteroscopic resection of endometrial polyps. PMID- 29338828 TI - Screening Serum Differential Proteins for Childhood Asthma at Different Control Levels by Isobaric Tags for Relative and Absolute Quantification-based Proteomic Technology. AB - Objective To screen serum differential proteins for childhood asthma at different control levels,which provided the basis for the prevention and treatment of childhood asthma. Methods Isobaric tags for relative and absolute quantification,two-dimensional liquid chromatography,nanoelectrospray ionization,and high-resolution tandem mass spectrometry using the hybrid quadrupole time-of-flight platform was used to screen the differential proteins in serum samples from pediatric patients with controlled,partly controlled,or uncontrolled childhood asthma. Differential proteins were validated using enzyme linked immunosorbent assay (ELISA). Results A total of 260 expressed proteins were identified. Among them 57 differentially expressed proteins were found among the different control levels of childhood asthma (fold<0.8 or fold>1.2). The differentially expressed proteins were involved mainly in 21 biological processes and 8 molecular functions and were located in 17 cellular components. ELISA showed that the serum vitronectin level was significantly higher in controlled group [(573.92+/-412.43) MUg/ml] than in uncontrolled group[(382.27+/ 238.64)]MUg/ml (P=0.0399). Conclusion We identified 57 differential proteins for childhood asthma at different control levels,which may be used as potential biological targets for the control of childhood asthma. PMID- 29338829 TI - Imaging Findings of Common Opportunistic Infections and Malignant Tumors in Acquired Immunodeficiency Syndrome Patients. AB - The incidence of human immunodeficiency virus (HIV) infection has gradually increased in recent years.HIV mainly destroys the body's immune system,leading to decreased body resistance and thus the development of a variety of opportunistic infections and neoplastic diseases,especially in the digestive system. However,the clinical manifestations,laboratory findings,and physical examination results of these conditions are not specific. Imaging examinations can determine the presence of infection and tumor lesions and the disease scope;furthermore,they are useful tools for biopsy and follow-up evaluation. A better knowledge of the radiological findings of these diseases can enable radiologists to provide more information to patients and clinicians. This article summarize the imaging findings of common opportunistic infections and malignant tumors in acquired immunodeficiency syndrome patients. PMID- 29338830 TI - Application of Cardiopulmonary Exercise Testing in Enhanced Recovery after Surgery. AB - Enhanced recovery after surgery (ERAS) is a new perioperative concept that aims to reduce perioperative stress response and accelerate rehabilitation of patients through a variety of optimized management. With the wider application of this concept,the effective implementation of ERAS program has become a new challenge. Cardiopulmonary exercise testing (CPET) has shown promising value in the preoperative assessment,perioperative optimization,and postoperative rehabilitation of ERAS. This article reviews the application of CPET in ERAS,with an attempt to provide evidence for more detailed and comprehensive ERAS program. PMID- 29338831 TI - Diagnosis and Treatment of Acute Intermittent Porphyria. AB - Acute intermittent porphyria (AIP) is a metabolic disease caused by hepatic deficiency of hydroxymethylbilane synthase. Its clinical manifestations include acute abdominal pain,neuropsychological abnormalities,and red urine. Due to its low incidence and varied clinical symptoms,the rates of misdiagnosis and mistreatment were particularly high. Biochemical testing and gene detection contribute to diagnosis. Management strategies include intravenous administration of human haemin,carbohydrate loading and symptomatic treatment. PMID- 29338832 TI - Exhaled Air Molecules and Chronic Obstructive Pulmonary Disease. AB - Chronic airway inflammation,a main pathologic process of chronic obstructive pulmonary disease (COPD),can trigger inflammation cells and airway structure cells to produce bioactive molecules,which play key roles in the pathogenesis of COPD and are also an efficient indicators for the diagnosis and treatment of COPD. This article reviews the important roles of these exhaled air molecules in the diagnosis and treatment of COPD,with an attempt to offer new strategies in the management of COPD. PMID- 29338833 TI - Clinical Application and Development of Near-infrared Spectroscopy for Monitoring Regional Cerebral Oxygen Saturation. AB - The near-infrared spectroscopy has been applied to the continuous and noninvasive monitoring of regional cerebral oxygen saturation,providing information about the equilibrium between cerebral oxygen supply and consumption. This article reviews the mechanism,clinical application,and limitations of this technique. PMID- 29338834 TI - Advances in Tissue-engineered Oral Mucosa. AB - The large defect of oral and maxillofacial region doesn't only affect the function and aesthetics but also has an adverse impact on patients' psychology. The traditional way to restore the defects are limited by donor site and secondary trauma. In recent years,the oral mucosal tissue engineering has developed rapidly and provides a new solution for craniofacial reconstruction. Tissue-engineered oral mucosa is an ideal substitute of oral mucosa. It can be used in clinical settings and in vitro experiments. This articles review the recent advances in tissue-engineered oral mucosa and its applications. PMID- 29338835 TI - General health, wellbeing and oral health of patients older than 75 years attending health assessments. AB - Annual health assessments by general practices for community-dwelling people aged 75 years and over are important for the early intervention and monitoring of chronic health conditions, including oral disease. Uptake of the health assessment to date has been poor, and little is known of the general and oral health profile of patients. Older patients attending health assessments at general practices in South Australia were sampled for this study. Data on demographic and socioeconomic characteristics, and patients' general and oral health, were collected by mailed questionnaire from 459 respondents. By comparison with national estimates, patients attending health assessments fared worse in many of the measures, such as self-rated general health, quality of life and the prevalence of most chronic conditions, as well as their socioeconomic circumstances. Also identified were a high degree of nutritional risk and clear need for oral health treatment, with poor self-rated oral health being three-fold higher than the national age-eligible population. Patients attending health assessments would likely benefit from nutritional screening (by a validated tool) and specific assessment of their oral health and dentition, supported by appropriate referral or intervention. PMID- 29338836 TI - Systems levers for commissioning primary mental healthcare: a rapid review. AB - Primary Health Networks (PHNs) are a new institution for health systems management in the Australian healthcare system. PHNs will play a key role in mental health reform through planning and commissioning primary mental health services at a regional level, specifically adopting a stepped care approach. Selected PHNs are also trialling a healthcare homes approach. Little is known about the systems levers that could be applied by PHNs to achieve these aims. A rapid review of academic and grey literature published between 2006 and 2016 was undertaken to describe the use of systems levers in commissioning primary care services. Fifty-six documents met the inclusion criteria, including twelve specific to primary mental healthcare. Twenty-six levers were identified. Referral management, contracts and tendering processes, and health information systems were identified as useful levers for implementing stepped care approaches. Location, enrolment, capitation and health information systems were identified as useful in implementing a healthcare homes approach. Other levers were relevant to overall health system functioning. Further work is needed to develop a robust evidence-base for systems levers. PHNs can facilitate this by documenting and evaluating the levers that they deploy, and making their findings available to researchers and other commissioning bodies. PMID- 29338837 TI - Stromule extension along microtubules coordinated with actin-mediated anchoring guides perinuclear chloroplast movement during innate immunity. AB - Dynamic tubular extensions from chloroplasts called stromules have recently been shown to connect with nuclei and function during innate immunity. We demonstrate that stromules extend along microtubules (MTs) and MT organization directly affects stromule dynamics since stabilization of MTs chemically or genetically increases stromule numbers and length. Although actin filaments (AFs) are not required for stromule extension, they provide anchor points for stromules. Interestingly, there is a strong correlation between the direction of stromules from chloroplasts and the direction of chloroplast movement. Stromule-directed chloroplast movement was observed in steady-state conditions without immune induction, suggesting it is a general function of stromules in epidermal cells. Our results show that MTs and AFs may facilitate perinuclear clustering of chloroplasts during an innate immune response. We propose a model in which stromules extend along MTs and connect to AF anchor points surrounding nuclei, facilitating stromule-directed movement of chloroplasts to nuclei during innate immunity. PMID- 29338839 TI - Ultrasound Assessment of a Subcutaneous Eumycetoma of the Eyebrow in an Immunocompromised Patient. PMID- 29338840 TI - Hydrogen sulfide provides intestinal protection during a murine model of experimental necrotizing enterocolitis. AB - BACKGROUND: Necrotizing enterocolitis (NEC) continues to be a morbid surgical condition among preterm infants. Novel therapies for this condition are desperately needed. Hydrogen sulfide (H2S) is an endogenous gasotransmitter that has been found to have beneficial properties. We therefore hypothesized that intraperitoneal injection of various H2S donors would improve clinical outcomes, increase intestinal perfusion, and reduce intestinal injury in an experimental mouse model of necrotizing enterocolitis. METHODS: NEC was induced in five-day old mouse C57BL/6 mouse pups through maternal separation, formula feeding, and intermittent hypoxic and hypothermic stress. The control group (n=10) remained with their mother and breastfed ad lib. Experimental groups (n=10/group) received intraperitoneal injections of phosphate buffered saline (PBS) vehicle or one of the following H2S donors: (1) GYY4137, 50mg/kg daily; (2) Sodium sulfide (Na2S), 20mg/kg three times daily; (3) AP39, 0.16mg/kg daily. Pups were monitored for weight gain, clinical status, and intestinal perfusion via transcutaneous Laser Doppler Imaging (LDI). After sacrifice on day nine, intestinal appearance and histology were scored and cytokines were measured in tissue homogenates of intestine, liver, and lung. Data were compared with Mann-Whitney and p<0.05 was considered significant. RESULTS: Clinical score and weight gain were significantly improved in all three H2S-treated groups as compared to vehicle (p<0.05 for all groups). Intestinal perfusion of the vehicle group was 22% of baseline while the GYY4137 group was 38.7% (p=0.0103), Na2S was 47.0% (p=0.0040), and AP39 was 43.0% (p=0.0018). The vehicle group had a median histology score of 2.5, while the GYY4137 group's was 1 (p=0.0013), Na2S was 0.5 (p=0.0004), and AP39 was 0.5 (p=0.0001). Cytokine analysis of the intestine of the H2S-treated groups revealed levels closer to breastfed pups as compared to vehicle (p<0.05 for all groups). CONCLUSION: Intraperitoneal administration of H2S protects against development of NEC by improving mesenteric perfusion, and by limiting mucosal injury and altering the tissue inflammatory response. Further experimentation is necessary to elucidate downstream mechanisms prior to clinical implementation. PMID- 29338838 TI - Neuronal populations in the occipital cortex of the blind synchronize to the temporal dynamics of speech. AB - The occipital cortex of early blind individuals (EB) activates during speech processing, challenging the notion of a hard-wired neurobiology of language. But, at what stage of speech processing do occipital regions participate in EB? Here we demonstrate that parieto-occipital regions in EB enhance their synchronization to acoustic fluctuations in human speech in the theta-range (corresponding to syllabic rate), irrespective of speech intelligibility. Crucially, enhanced synchronization to the intelligibility of speech was selectively observed in primary visual cortex in EB, suggesting that this region is at the interface between speech perception and comprehension. Moreover, EB showed overall enhanced functional connectivity between temporal and occipital cortices that are sensitive to speech intelligibility and altered directionality when compared to the sighted group. These findings suggest that the occipital cortex of the blind adopts an architecture that allows the tracking of speech material, and therefore does not fully abstract from the reorganized sensory inputs it receives. PMID- 29338841 TI - The Starch Utilization System Assembles around Stationary Starch-Binding Proteins. AB - Bacteroides thetaiotaomicron (Bt) is a prominent member of the human gut microbiota with an extensive capacity for glycan harvest. This bacterium expresses a five-protein complex in the outer membrane, called the starch utilization system (Sus), which binds, degrades, and imports starch into the cell. Sus is a model system for the many glycan-targeting polysaccharide utilization loci found in Bt and other members of the Bacteroidetes phylum. Our previous work has shown that SusG, a lipidated amylase in the outer membrane, explores the entire cell surface but diffuses more slowly as it interacts with starch. Here, we use a combination of single-molecule tracking, super-resolution imaging, reverse genetics, and proteomics to show that SusE and SusF, two proteins that bind starch, are immobile on the cell surface even when other members of the system are knocked out and under multiple different growth conditions. This observation suggests a new paradigm for protein complex formation: binding proteins form immobile complexes that transiently associate with a mobile enzyme partner. PMID- 29338842 TI - Real-Time Nanopore-Based Recognition of Protein Translocation Success. AB - A growing number of new technologies are supported by a single- or multi-nanopore architecture for capture, sensing, and delivery of polymeric biomolecules. Nanopore-based single-molecule DNA sequencing is the premier example. This method relies on the uniform linear charge density of DNA, so that each DNA strand is overwhelmingly likely to pass through the nanopore and across the separating membrane. For disordered peptides, folded proteins, or block copolymers with heterogeneous charge densities, by contrast, translocation is not assured, and additional strategies to monitor the progress of the polymer molecule through a nanopore are required. Here, we demonstrate a single-molecule method for direct, model-free, real-time monitoring of the translocation of a disordered, heterogeneously charged polypeptide through a nanopore. The crucial elements are two "selectivity tags"-regions of different but uniform charge density-at the ends of the polypeptide. These affect the selectivity of the nanopore differently and enable discrimination between polypeptide translocation and retraction. Our results demonstrate exquisite sensitivity of polypeptide translocation to applied transmembrane potential and prove the principle that nanopore selectivity reports on biopolymer substructure. We anticipate that the selectivity tag technique will be broadly applicable to nanopore-based protein detection, analysis, and separation technologies, and to the elucidation of protein translocation processes in normal cellular function and in disease. PMID- 29338844 TI - SFE/SFEDP adrenal insufficiency French consensus: Introduction and handbook. AB - The French endocrinology society (SFE) and the French pediatric endocrinology society (DFSDP) have drawn up recommendations for the management of primary and secondary adrenal insufficiency in the adult and child, based on an analysis of the literature by 19 experts in 6 work-groups. A diagnosis of adrenal insufficiency should be suspected in the presence of a number of non-specific symptoms except hyperpigmentation which is observed in primary adrenal insufficiency. Diagnosis rely on plasma cortisol and ACTH measurement at 8am and/or the cortisol increase after synacthen administration. When there is a persistant doubt of secondary adrenal insufficiency, insulin hypoglycemia test should be carried out in adults, adolescents and children older than 2 years. For determining the cause of primary adrenal insufficiency, measurement of anti-21 hydroxylase antibodies is the initial testing. An adrenal CT scan should be performed if auto-antibody tests are negative, then assay for very long chain fatty acids is recommended in young males. In children, a genetic anomaly is generally found, most often congenital adrenal hyperplasia. In the case of isolated corticotropin (ACTH) insufficiency, it is recommended to first eliminate corticosteroid-induced adrenal insufficiency, then perform an hypothalamic pituitary MRI. Acute adrenal insufficiency is a serious condition, a gastrointestinal infection being the most frequently reported initiating factor. After blood sampling for cortisol and ACTH assay, treatment should be commenced by parenteral hydrocortisone hemisuccinate together with the correction of hypoglycemia and hypovolemia. Prevention of acute adrenal crisis requires an education of the patient and/or parent in the case of pediatric patients and the development of educational programs. Treatment of adrenal insufficiency is based on the use of hydrocortisone given at the lowest possible dose, administered several times per day. Mineralocorticoid replacement is often necessary for primary adrenal insufficiency but not for corticotroph deficiency. Androgen replacement by DHEA may be offered in certain conditions. Monitoring is based on the detection of signs of under- and over-dosage and on the diagnosis of associated auto-immune disorders. PMID- 29338845 TI - Protocolized warfarin reversal with 4-factor prothrombin complex concentrate versus 3-factor prothrombin complex concentrate with recombinant factor VIIa. AB - INTRODUCTION: Life-threatening bleeding can complicate warfarin therapy. Rapid anticoagulant reversal via replacement of vitamin-K dependent clotting factors is essential for hemostasis. We compare two methods of rapid factor replacement for warfarin reversal. METHODS: A retrospective cohort study of warfarin-treated patients experiencing life-threatening bleeding who received a reversal protocol comprised of 4F PCC or 3F PCC and rFVIIa was performed. Demographic, clinical and anticoagulant reversal information, and all adverse events attributed to warfarin reversal were recorded. RESULTS: 195 patients were included in final analysis. While baseline demographics were similar between groups, the 3F-PCC group had a longer ICU LOS and higher in-hospital mortality (p < .01, .01). Pre-reversal INR was similar between both groups, but post-reversal INR was significantly lower in the 3F-PCC group, 0.8 versus 1.3 (p < .01). Significantly more patients experienced thromboembolic complications in the 3F-PCC group than the 4F-PCC group (p < .01). Receipt of rFVIIa was significantly associated with thromboembolic complications. DISCUSSION: A 4F PCC reversal strategy is efficacious in INR reversal and provides lower thromboembolic risk as compared to 3F PCC with rFVIIa. PMID- 29338846 TI - Comparison of two trunk electromagnetic sensor placement methods during shoulder motion analysis. AB - For kinematic studies of the shoulder, electromagnetic sensors are commonly placed on the humerus, scapula, and trunk. The trunk sensor is used to describe humeral and scapular kinematics with respect to the trunk. There are two common trunk sensor placements, the sternum or third thoracic vertebrae (T3). It is currently unclear if placement of the trunk sensor affects kinematics, making it difficult to compare data across studies. The purpose of this study was to compare two trunk sensor placements (T3 and sternum) on trunk and scapular kinematics during arm elevation. An electromagnetic tracking system was used to collect kinematic data during five consecutive repetitions of ascending and descending arm elevation in the sagittal plane. The results indicate that trunk sensor placement had no significant effect on trunk kinematics or scapular upward/downward rotation and internal/external rotation. Scapular anterior/posterior tilt was significantly greater when the trunk sensor was on the sternum compared to the T3 vertebrae during ascending 30 degrees -120 degrees : mean difference = -3.51 degrees (95%CI: -5.61, -1.40), and descending 120 degrees -30 degrees : mean difference = -3.27 degrees (95%CI: -6.07, -0.48). However, the difference in anterior/posterior tilt did not exceed the error (minimal detectable change), and thus is likely not a meaningful difference. These results indicate the trunk sensors can be affixed on T3 or the sternum, depending on the needs of the study. PMID- 29338843 TI - Current Status of Animal Models of Posttraumatic Stress Disorder: Behavioral and Biological Phenotypes, and Future Challenges in Improving Translation. AB - Increasing predictability of animal models of posttraumatic stress disorder (PTSD) has required active collaboration between clinical and preclinical scientists. Modeling PTSD is challenging, as it is a heterogeneous disorder with >=20 symptoms. Clinical research increasingly utilizes objective biological measures (e.g., imaging, peripheral biomarkers) or nonverbal behaviors and/or physiological responses to complement verbally reported symptoms. This shift toward more-objectively measurable phenotypes enables refinement of current animal models of PTSD, and it supports the incorporation of homologous measures across species. We reviewed >600 articles to examine the ability of current rodent models to probe biological phenotypes of PTSD (e.g., sleep disturbances, hippocampal and fear-circuit dysfunction, inflammation, glucocorticoid receptor hypersensitivity) in addition to behavioral phenotypes. Most models reliably produced enduring generalized anxiety-like or depression-like behaviors, as well as hyperactive fear circuits, glucocorticoid receptor hypersensitivity, and response to long-term selective serotonin reuptake inhibitors. Although a few paradigms probed fear conditioning/extinction or utilized peripheral immune, sleep, and noninvasive imaging measures, we argue that these should be incorporated more to enhance translation. Data on female subjects, on subjects at different ages across the life span, or on temporal trajectories of phenotypes after stress that can inform model validity and treatment study design are needed. Overall, preclinical (and clinical) PTSD researchers are increasingly incorporating homologous biological measures to assess markers of risk, response, and treatment outcome. This shift is exciting, as we and many others hope it not only will support translation of drug efficacy from animal models to clinical trials but also will potentially improve predictability of stage II for stage III clinical trials. PMID- 29338847 TI - Evaluation and validation of musculoskeletal force feasible set indices: Application to manual wheelchair propulsion. AB - The aim of this work was to assess handrim wheelchair propulsion effectiveness, related to the applied forces on the handrim, through the force feasible set. For a given posture of the upper-limb, it represents the set of isometric forces that can be applied on the handrim in any direction. The force feasible set was predicted from a musculoskeletal model of the upper-limb and trunk (10 degrees of freedom and 56 muscles). The aim of the first part of the study was to compare the force feasible set prediction and the force currently applied on the handrim. The second part proposes the creation of a new index called "Musculoskeletal Postural Performance Index" (MPPI) derived from the force feasible set and its comparison with the Mechanical Efficiency Force (MEF). These comparisons were conducted at 60, 80, 100, 120 and 140% of the Freely Chosen Frequency at submaximal and maximal conditions on 5 different phases of the push phase. The values of the MPPI were significantly correlated with those of the MEF. During the course of the push phase, the orientation of the force feasible set main axis approached that of the measured force and the force effectiveness evaluated through the MPPI increased. PMID- 29338848 TI - Preoperative Bevacizumab Administration in Proliferative Diabetic Retinopathy Patients Undergoing Vitrectomy: A Randomized and Controlled Trial Comparing Interval Variation. PMID- 29338849 TI - The Challenge of Blau Syndrome. PMID- 29338850 TI - Reply. PMID- 29338851 TI - Reply. PMID- 29338852 TI - Simulation-based multidisciplinary team training decreases time to critical operations for trauma patients. AB - BACKGROUND: Simulation has been promoted as a platform for training trauma teams. However, it is not clear if this training has an impact on health service delivery and patient outcomes. This study evaluates the association between implementation of a simulation based multidisciplinary trauma team training program at a metropolitan trauma centre and subsequent patient outcomes. METHOD: This was a retrospective review of trauma registry data collected at an 850-bed Level 1 Adult Trauma Centre in Sydney, Australia. Two concurrent four-year periods, before and after implementation of a simulation based multidisciplinary trauma team training program were compared for differences in time to critical operations, Emergency Department (ED) length of stay (LOS) and patient mortality. RESULTS: There were 2389 major trauma patients admitted to the hospital during the study, 1116 in the four years preceding trauma team training (the PREgroup) and 1273 in the subsequent 4 years (the POST group). There were no differences between the groups with respect to gender, body region injured, incidence of polytrauma, and pattern of arrival to ED. The POST group was older (median age 54 versus 43 years, p < 0.001) and had a higher incidence of falls and assaults (p < 0.001). There was a reduction in time to critical operation, from 2.63 h (IQR 1.23-5.12) in the PRE-group to 0.55 h (IQR 0.22-1.27) in the POST-group, p < 0.001. The overall ED LOS increased, and there was no reduction in mortality. Post-hoc analysis found LOS in ED was reduced in the cohort requiring critical operations, p < 0.001. CONCLUSION: The implementation of trauma team training was associated with a reduction in time to critical operation while overall ED length of stay increased. Simulation is promoted as a platform for training teams; but the complexity of trauma care challenges efforts to demonstrate direct links between multidisciplinary team training and improved outcomes. There remain considerable gaps in knowledge as to how team training impacts health service delivery and patient outcomes. LEVEL OF EVIDENCE: Retrospective comparative therapeutic/care management study, Level III evidence. PMID- 29338853 TI - Atypical fractures: An issue of concern or a myth? AB - Atypical Femoral Fractures (AFF) represent fractures located between the lesser trochanter and the supracondylar flare of a femur. An increasing pool of evidence supports their association with the prolonged use of bisphosphonates, even though a direct correlation is yet to be proved. The purpose of this review is to encapsulate the current evidence associating bisphosphonate use and the development of AFFs, the clinical features related to their presentation, as well as to report the armamentarium of strategies available in the prevention and treatment of AFFs. Based on these evidence, we propose a management algorithm for AFFs, that can serve as a guide for patients presenting with this condition. PMID- 29338854 TI - Long-term outcomes in cancer patients who did or did not pursue fertility preservation. AB - OBJECTIVE: To compare long-term outcomes of cancer patients who pursued fertility preservation (FP) with those who did not and compare random-start (RS) and menstrual cycle-specific (CS) protocols for FP. DESIGN: Retrospective cohort. SETTING: Single urban academic institution. PATIENT(S): Oncology patients who contacted the FP patient navigator, 2005-2015. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Time to cancer treatment, disease-free survival, and reproductive outcomes in FP versus no-FP patients and cycle outcomes for RS versus CS protocols. Data were analyzed by chi2 and logistic regression. RESULT(S): Of 497 patients who met the inclusion criteria, 41% elected FP. The median number of days to cancer treatment was 33 and 19 days in the FP and no-FP groups, respectively. There was no difference in cancer recurrence or mortality. There were no differences in stimulation parameters, outcomes, or days to next cancer treatment in RS versus CS protocols. Twenty-one patients returned to use cryopreserved specimens, resulting in 16 live births. Eight of 21 returning patients used a gestational carrier. Thirteen FP (6.4%) and 16 no-FP (5.5%) patients experienced a spontaneous pregnancy. CONCLUSION(S): FP is both safe and efficacious for eligible cancer patients. Only 10% of patients returned to use cryopreserved specimens, and almost half used a gestational carrier, suggesting the need for further research into reproductive decision-making in cancer survivors. PMID- 29338855 TI - Vitrified blastocyst transfer cycles with the use of only vaginal progesterone replacement with Endometrin have inferior ongoing pregnancy rates: results from the planned interim analysis of a three-arm randomized controlled noninferiority trial. AB - OBJECTIVE: To assess the noninferiority of vaginal P (Endometrin) compared with daily intramuscular P for replacement in programmed vitrified-warmed blastocyst transfer cycles and to assess the noninferiority of vaginal P in combination with intramuscular progesterone every third day compared with daily intramuscular P. DESIGN: Three-arm randomized controlled noninferiority study. To enable early recognition of inferiority if present, an a priori interim analysis was planned and completed once ongoing pregnancy data were available for 50% of the total enrollment goal. The results of this interim analysis are presented here. SETTING: Assisted reproduction technology practice. PATIENT(S): Women undergoing transfer of nonbiopsied high quality vitrified-warmed blastocyst(s) in a programmed cycle. INTERVENTION(S): Vitrified-warmed blastocyst transfer with mode of P replacement determined by randomization to either: (1) 50 mg daily intramuscular P only; (2) 200 mg twice daily vaginal Endometrin; or (3) 200 mg twice daily Endometrin plus 50 mg intramuscular P every 3rd day. MAIN OUTCOME MEASURE(S): Live birth. The primary outcome of this interim analysis was ongoing pregnancy. RESULT(S): A total of 645 cycles were randomly assigned to one of the three treatment arms, received at least one dose of P replacement therapy according to this assignment and underwent vitrified-warmed blastocyst transfer. These cycles were included in the intention-to-treat analysis. The study team, including the statistician, were blinded to the identity of the treatment arms, which were randomly labeled "A," "B," and "C" in the dataset. Ongoing pregnancy occurred in 50%, 47%, and 31% of cycles in arms A, B, and C respectively. Although arm C had an rate of positive hCG equivalent to the other two arms, the rate of pregnancy loss for arm C was significantly higher than for either of the two arms, resulting in a more than one-third lower rate of ongoing pregnancy. There were no statistically significant differences for any outcome tested between arms A and B. Results of a per-protocol analysis were nearly identical to those of the intention-to-treat analysis. On completion of these analyses, arm C was revealed to be the vaginal P only arm. CONCLUSION(S): Relative to regimens inclusive of intramuscular P, vaginal-only P replacement for vitrified-warmed blastocyst transfer results in decreased ongoing pregnancy, due to increased miscarriage, and should be avoided. Randomization to the vaginal-only arm was terminated with these findings. This trial is ongoing to assess the noninferiority of the vaginal plus every 3rd day intramuscular P arm compared with daily intramuscular P in terms of live birth. CLINICAL TRIAL REGISTRATION NUMBER: NLM identifier NCT02254577. PMID- 29338856 TI - Parental health status and infant outcomes: Upstate KIDS Study. AB - OBJECTIVE: To assess parental health status inclusive of infertility and infant outcomes. DESIGN: Birth cohort with cross-sectional analysis of parental health status and infant outcomes. SETTING: Not applicable. PATIENT(S): Parents (n = 4,886) and infants (n = 5,845) participating in the Upstate KIDS birth cohort. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Infertility was defined as [1] sexually active without contraception for 1+ years without pregnancy, [2] ever requiring >=12 months to become pregnant, and [3] requiring >=12 months for index pregnancy. Multivariable linear regression with generalized estimating equations estimated the change (beta coefficient and 95% confidence interval [CI]) in infant outcomes (gestation, birthweight, length, head circumference, ponderal index) and relative to each disease, including infertility after adjusting for age, body mass index, and infertility treatment. RESULT(S): Prevalence of parental chronic diseases ranged from <1% to 19%, and 21% to 54% for infertility. Maternal hypertension was negatively associated with gestation (beta, -0.64; 95% CI, -1.03, -0.25) and birthweight (-151.98; -262.30, -41.67) as was asthma and birthweight (-75.01; -130.40, -19.62). Maternal kidney disease was associated with smaller head circumference (-1.09; -2.17, -0.01), whereas paternal autoimmune disease was associated with larger head circumference (0.87; 0.15, 1.60). Infertility was negatively associated with birthweight (-62.18; -103.78, 20.58), length (-0.33; -0.60, -0.06), and head circumference (-0.35; -0.67, 0.03). CONCLUSION(S): Infertility was significantly associated with reduced infant size even after accounting for infertility treatment, although the magnitude of reduction varied by definition of infertility. Absence of pregnancy within a year of being at risk may be informative about health. PMID- 29338858 TI - Cost-effectiveness analysis in cardiac surgery: A review of its concepts and methodologies. PMID- 29338857 TI - Obstetric complications after frozen versus fresh embryo transfer in women with polycystic ovary syndrome: results from a randomized trial. AB - OBJECTIVE: To evaluate the effect of frozen embryo transfer on maternal and neonatal complications of singleton and twin pregnancies compared with fresh embryo transfer in women with polycystic ovary syndrome (PCOS). DESIGN: A secondary analysis of a multicenter, randomized, controlled trial comparing live birth after frozen vs. fresh embryo transfer (FreFro-PCOS). SETTING: Reproductive medicine centers. PATIENT(S): A total of 1,508 patients with a diagnosis of PCOS who were undergoing IVF were enrolled. INTERVENTION(S): On day of oocyte retrieval, eligible patients were randomized to the fresh or frozen embryo transfer groups. Up to two embryos were transferred in both groups. All pregnancies were followed up until delivery. MAIN OUTCOME MEASURE(S): Gestational diabetes mellitus, pre-eclampsia, preterm birth, small for gestational age, and large for gestational age. RESULT(S): The risks of gestational diabetes mellitus, preterm birth, and small for gestational age were comparable between the frozen and fresh embryo transfer groups in both singleton and twin births. However, singleton infants born after frozen embryo transfer were more likely to be large for gestational age (25.2% vs. 17.5%; relative risk 1.44, 95% confidence interval 1.01-2.07, P=.044) than those born after fresh embryo transfer. Twin pregnancy after frozen embryo transfer had a higher risk of pre-eclampsia (12.0% vs. 2.8%; relative risk 4.31, 95% confidence interval 1.27-14.58, P=.009) than those after fresh embryo transfer. CONCLUSION(S): In women with PCOS, frozen embryo transfer resulted in an increased risk of large for gestational age in singleton pregnancy and a higher risk of pre-eclampsia in twin pregnancy. CLINICAL TRIAL REGISTRATION NUMBER: NCT01841528. PMID- 29338859 TI - Renal function and outcome after heart transplantation. AB - OBJECTIVES: To investigate whether measured glomerular filtration rate (mGFR) is a risk factor for death and/or end-stage renal disease (ESRD) after heart transplantation (HTx). METHODS: All adult patients (n = 416) who underwent HTx between 1988 and 2010 were included. mGFR was performed both preoperatively and postoperatively as annual follow-up. Eight patients received a concomitant kidney transplant (KTx), and 15 underwent late KTx due to chronic renal failure after HTx. RESULTS: The mean drop in mGFR compared with the preoperative value was 12% during the first year after HTx. Preoperative mGFR was not predictive of mortality or ESRD. Older or the use of a ventricular assist device (VAD) were preoperative predictors of death. Long-term survival was significantly worse in the patients who experienced a >25% decrease in mGFR during the first year after transplantation. The need for acute postoperative renal replacement therapy (RRT) was associated with impaired survival but did not predict ESRD among survivors. On multivariable analyses, previous heart surgery, preoperative VAD, and a lower mGFR were all predictors of RRT. In the most recent period, death without previous ESRD was lower, and the only preoperative factors associated with ESRD by multivariable analyses were mechanical ventilation and diabetes mellitus. CONCLUSIONS: Pretransplantation mGFR was not predictive of mortality or ESRD after HTx, but necessitated simultaneous or late-stage KTx in this selected population of patients. However, patients with a decrease in >25% mGFR during the first year post-transplantation, as well as early postoperative dialysis dependent acute renal dysfunction, had a poor prognosis. We suggest that patients with severely impaired kidney function, irrespective of pretransplantation renal function, still should be considered for HTx, but also encourage careful interpretation of our results given the selection bias involved in this population. PMID- 29338860 TI - Learning curve of image-guided video-assisted thoracoscopic surgery for small pulmonary nodules: A prospective analysis of 30 initial patients. AB - OBJECTIVES: The use of image-guided video-assisted thoracoscopic surgery for simultaneous localization and removal of small solitary pulmonary nodules in a hybrid operation room using C-arm cone-beam computed tomography is gaining momentum. We sought to assess the effect of the learning curve on procedural parameters and clinical outcomes of image-guided video-assisted thoracoscopic surgery for treating patients with small solitary pulmonary nodules. METHODS: Clinical variables and treatment outcomes of the 30 initial patients with solitary pulmonary nodules who were treated with image-guided video-assisted thoracoscopic surgery at Chang Gung Memorial Hospital (Taiwan) were prospectively analyzed. Two sequential groups (groups I and II, n = 15 each) were compared with regard to localization time, radiation doses, and success rates. We used the Pearson's correlation coefficient to investigate the association between the surgical experience and the procedural time. RESULTS: In the entire cohort, the median size of solitary pulmonary nodules on preoperative computed tomography images was 6 mm (interquartile range, 4.5-9 mm), and their median distance from the pleural surface was 10 mm (interquartile range, 5-15 mm). The median tumor depth-to-size ratio was 1.4 (interquartile range, 0.7-2.5). The clinical parameters were similar between the 2 groups. There was an inverse association between the surgical experience and the procedural time (Pearson's r = -0.6873; P < .001). A significant reduction in localization time (median, 24 vs 49 minutes, respectively; P < .001) and radiation exposure (median, 70.7 vs 224 mGy, respectively; P < .001) was noted in group II (late patients) compared with group I (early patients). Notably, the success rates in groups II and I were similar (93.3% vs 86.7%, respectively; P = . 876). CONCLUSIONS: Our data demonstrate a significant learning curve for image-guided video-assisted thoracoscopic surgery in the treatment of solitary pulmonary nodules as evidenced by decreased localization time and radiation exposure occurring with increased surgical experience. PMID- 29338861 TI - Extracorporeal membrane oxygenation before surgical repair of a postinfarction ventricular septal defect. PMID- 29338862 TI - New-generation stents compared with coronary bypass surgery for unprotected left main disease: A word of caution. AB - BACKGROUND: With the advent of bare metal stents and drug-eluting stents, percutaneous coronary intervention has emerged as an alternative to coronary artery bypass grafting surgery for unprotected left main disease. However, whether the evolution of stents technology has translated into better results after percutaneous coronary intervention remains unclear. We aimed to compare coronary artery bypass grafting with stents of different generations for left main disease by performing a Bayesian network meta-analysis of available randomized controlled trials. METHODS: All randomized controlled trials with at least 1 arm randomized to percutaneous coronary intervention with stents or coronary artery bypass grafting for left main disease were included. Bare metal stents and drug-eluting stents of first- and second-generation were compared with coronary artery bypass grafting. Poisson methods and Bayesian framework were used to compute the head-to-head incidence rate ratio and 95% credible intervals. Primary end points were the composite of death/myocardial infarction/stroke and repeat revascularization. RESULTS: Nine randomized controlled trials were included in the final analysis. Six trials compared percutaneous coronary intervention with coronary artery bypass grafting (n = 4654), and 3 trials compared different types of stents (n = 1360). Follow-up ranged from 6 months to 5 years. Second-generation drug-eluting stents (incidence rate ratio, 1.3; 95% credible interval, 1.1-1.6), but not bare metal stents (incidence rate ratio, 0.63; 95% credible interval, 0.27-1.4), and first-generation drug-eluting stents (incidence rate ratio, 0.85; 95% credible interval, 0.65-1.1) were associated with a significantly increased risk of death/myocardial infarction/stroke when compared with coronary artery bypass grafting. When compared with coronary artery bypass grafting, the highest risk of repeat revascularization was observed for bare metal stents (hazard ratio, 5.1; 95% confidence interval, 2.1-14), whereas first-generation drug-eluting stents (incidence rate ratio, 1.8; 95% confidence interval, 1.4-2.4) and second-generation drug-eluting stents (incidence rate ratio, 1.8; 95% confidence interval, 1.4-2.4) were comparable. CONCLUSIONS: The introduction of new-generation drug-eluting stents did not translate into better outcomes for percutaneous coronary intervention when compared with coronary artery bypass grafting. PMID- 29338863 TI - In elective arch surgery with circulatory arrest, does the arterial cannulation site really matter? A propensity score analysis of right axillary and innominate artery cannulation. AB - OBJECTIVE: The preferred arterial cannulation site for elective proximal aortic procedures requiring circulatory arrest varies, and different sites have been tried. We evaluated the relationships between arterial cannulation site and adverse outcomes, including stroke, in patients undergoing elective aortic arch surgery. METHODS: We reviewed the records of 938 patients who underwent elective hemiarch or total arch surgery with circulatory arrest between 2006 and 2016. Five cannulation sites were used: the right axillary (n = 515; 54.9%), innominate (n = 376; 40.1%), and right common carotid arteries (n = 15; 1.6%), each with a side graft; the ascending aorta (n = 19; 2.0%); and the femoral artery (n = 13; 1.4%). Multivariable logistic regression analysis was used to model the effects of cannulation site on adverse outcomes for the entire cohort and for a subcohort of 891 patients who underwent innominate or axillary artery cannulation. Propensity-matching yielded 564 patients (282 pairs) from the right axillary and innominate artery groups. RESULTS: For the entire cohort, mortality, stroke, and composite adverse outcome (operative death or persistent stroke or renal failure at hospital discharge) rates were 7.0%, 4.1%, and 9.8%. In the multivariable analysis of the axillary/innominate subcohort, cannulation site did not independently predict operative mortality, persistent stroke, or composite adverse event. These results were confirmed with the propensity-matched analysis, where both axillary and innominate artery cannulation provided equivalent composite adverse event rates, operative death rates, and overall stroke rates. CONCLUSIONS: During elective arch surgery, right axillary artery cannulation and innominate artery cannulation (both via a side graft) produce excellent results and can be used interchangeably. PMID- 29338864 TI - Mesothelioma: Live to fight another day. PMID- 29338865 TI - How much can you "enhance" recovery after lung resection? PMID- 29338866 TI - The repair of a type Ia endoleak following thoracic endovascular aortic repair using a stented elephant trunk procedure. AB - BACKGROUND: Type Ia endoleaks are not uncommon complications that occur after thoracic endovascular aortic repair (TEVAR). Because aortic arch vessels prevent extension of the landing zone, it is very difficult to manipulate a type Ia endoleak using an extension cuff or stent-graft, especially when the aortic arch is involved. Here, we retrospectively review our experience of surgical treatment of type Ia endoleak after TEVAR using a stented elephant trunk procedure. METHODS: From July 2010 to August 2016, we treated 17 patients diagnosed with a type Ia endoleak following TEVAR using stented elephant trunk procedure. The mean age of our patients was 52 +/- 8 years. The mean interval between TEVAR and the open surgical repair was 38 +/- 43 months. RESULTS: All cases of type Ia endoleak (100%) were repaired successfully. There were no in-hospital deaths. One case required reintubation and continuous renal replacement therapy due to renal failure; this patient recovered smoothly before discharge. One other patient suffered a stroke and renal failure and did not fully recover following discharge, or follow-up. During follow-up, there were 3 deaths. CONCLUSIONS: Acceptable results were obtained using a stented elephant trunk procedure in patients with a type Ia endoleak after TEVAR. This technique allowed us to repair the proximal aortic arch lesions, surgically correct the type Ia endoleak, and promote false lumen thrombosis in the distal aorta. Implantation of a stented elephant trunk, with or without a concomitant aortic arch procedure, is an alternative approach for this type of lesion. PMID- 29338867 TI - Validation of a definition of excessive postoperative bleeding in infants undergoing cardiac surgery with cardiopulmonary bypass. AB - OBJECTIVE: To derive and validate an objective definition of postoperative bleeding in neonates and infants undergoing cardiac surgery with cardiopulmonary bypass. METHODS: Using a retrospective cohort of 124 infants and neonates, we included published bleeding definitions and cumulative chest tube output over different postoperative periods (eg, 2, 12, or 24 hours after intensive care unit admission) in a classification and regression tree model to determine chest tube output volumes that were associated with red blood cell transfusions and surgical re-exploration for bleeding in the first 24 hours after intensive care unit admission. After the definition of excessive bleeding was determined, it was validated via a prospective cohort of 77 infants and neonates. RESULTS: Excessive bleeding was defined as >=7 mL/kg/h for >=2 consecutive hours in the first 12 postoperative hours and/or >=84 mL/kg total for the first 24 postoperative hours and/or surgical re-exploration for bleeding or cardiac tamponade physiology in the first 24 postoperative hours. Excessive bleeding was associated with longer length of hospital stay, increased 30-day readmission rate, and increased transfusions in the postoperative period. CONCLUSIONS: The proposed standard definition of excessive bleeding is based on readily obtained objective data and relates to important early clinical outcomes. Application and validation by other institutions will help determine the extent to which our specialty should consider this definition for both clinical investigation and quality improvement initiatives. PMID- 29338868 TI - Survival and reoperation pattern after 20 years of experience with aortic valve sparing root replacement in patients with tricuspid and bicuspid valves. AB - OBJECTIVE: Remodeling or reimplantation are established operative techniques of aortic valve-sparing root replacement. Long-term follow-up is necessary comparing tricuspid and bicuspid aortic valves. METHODS: A total of 315 patients (tricuspid, n = 225, bicuspid, n = 89, quadricuspid, n = 1; remodeling, n = 101, reimplantation, n = 214) were evaluated. Mean follow-up was 10.1 +/- 5.6 and 6.4 +/- 4.2 years for the remodeling and reimplantation group, respectively. Longest follow-up was 21.9 years with 99.2% completeness. Mean age of the patients was 55.9 +/- 14.3 for the remodeling group and 48.9 +/- 14.5 years for the reimplantation group. RESULTS: There was no significant difference in survival between the remodeling and reimplantation group (P = .11). Survival was comparable with the normal population in the reimplantation group (P = .33). Risk factors for late death were age, diabetes, and a greater New York Heart Association classification. Cumulative incidence of reoperation at 10 years was 5.8% for the reimplantation and 11.7% for the remodeling group (P = .65). Overall, there was no difference in the cumulative incidence of reoperation between tricuspid and bicuspid aortic valve patients (P = .13); however, a landmark analysis showed that in the second decade, the cumulative incidence of reoperation was greater in bicuspid aortic valve patients (P < .001). A total of 10 of 11 reoperated bicuspid aortic valves were degenerated. CONCLUSIONS: The remodeling and reimplantation aortic valve-sparing root replacement techniques provided excellent long-term survival. Although the number of patients was relatively small, we provide some hints that in the second decade after the operation, especially in bicuspid aortic valve patients, the risk of reoperation may be increased, needing further evaluation. PMID- 29338869 TI - Anterior leaflet splitting during transcatheter mitral valve replacement: Killing two birds with one stone? PMID- 29338870 TI - Peptide retention prediction using hydrophilic interaction liquid chromatography coupled to mass spectrometry. AB - A model that predicts retention for peptides using a HALO(r) penta-HILIC column and gradient elution was created. Coefficients for each amino acid were derived using linear regression analysis and these coefficients can be summed to predict the retention of peptides. This model has a high correlation between experimental and predicted retention times (0.946), which is on par with previous RP and HILIC models. External validation of the model was performed using a set of H. pylori samples on the same LC-MS system used to create the model, and the deviation from actual to predicted times was low. Apart from amino acid composition, length and location of amino acid residues on a peptide were examined and two site-specific corrections for hydrophobic residues at the N-terminus as well as hydrophobic residues one spot over from the N-terminus were created. PMID- 29338871 TI - Likelihood of total resolution in selective comprehensive two-dimensional liquid chromatography with parallel processing: Simulation and theory. AB - The probability Pr(sLC*LC) that all peaks are separated by a resolution of 1.5 or more in selective comprehensive two-dimensional liquid chromatography (sLC * LC) is computed for simple model systems of 5 to 60 peaks and first-dimension (1D) gradient times of 100 to 2000 s. The computations include mimics of a commercial instrument, whose fixed second-dimension (2D) gradient time and use of one cycle time for initialization reduces Pr(sLC*LC) relative to an earlier report. For serial sLC * LC, in which a single device collects and transfers 1D multiplets to the second dimension, Pr(sLC*LC) under practical conditions is predicted to be only slightly larger than the probability of total resolution in LC * LC for separations of the same duration in each case. To increase Pr(sLC*LC), two model systems are proposed based on parallel processing, in which one device collects multiplets from the first separation while a second device simultaneously transfers fractions from previously collected multiplets to the second dimension for further separation. A sum of probabilities guideline is proposed by which optimal fixed 2D gradient times, ranging from 9.5 to 12 s, are found for both serial and parallel models. The increases of Pr(sLC*LC) based on parallel processing are modest; the largest is only 0.062 for one system and 0.106 for the other, relative to the serial model. A theory is derived that rationalizes the modesty of the increase, which was unexpected. It shows that Pr(sLC*LC) equals the probability of total resolution in the first dimension, plus the product of the probability that all 1D multiplets are transferred to the second dimension and the probability that all multiplets are separated in the second dimension. The theory shows that, although parallel processing is better than serial processing for multiplet transfer, the ability to leverage this gain is offset by the limited probability that all multiplets are then actually separated in the second dimension, which is only about 0.55 for conditions where the change from serial to parallel processing is most beneficial. With these findings in hand, two scenarios are examined for future consideration: one in which the 2D peak capacity is doubled, and another in which multiplets are always transferred to the second dimension. The latter shows considerable promise for increasing Pr(sLC*LC) substantially beyond its counterpart in LC * LC. For example, a 50% probability of separating all peaks in a 15-component mixture can be reached in 1150 s using LC * LC. The same probability can be reached in the same time for a sample with nearly twice as many components (27) in the case of sLC * LC, assuming transfer of all multiplets to the second dimension. These findings will be useful to those considering systematic approaches to developing 2D-LC methods for moderately complex mixtures, and to those interested in instrument development for 2D-LC. PMID- 29338872 TI - Sickle cell disease: An overview of orofacial and dental manifestations. PMID- 29338874 TI - Extracorporeal membrane oxygenation in infants with congenital diaphragmatic hernia. AB - Congenital diaphragmatic hernia (CDH) is a severe congenital anomaly which impairs normal pulmonary development leading to acute and chronic respiratory failure, pulmonary hypoplasia, pulmonary hypertension, and mortality. CDH is the most common non-cardiac indication for neonatal ECMO. Prenatal and postnatal predictors of CDH severity aid in patient selection. Centers vary in preferred mode of ECMO and timing of CDH repair. Survivors of severe CDH with ECMO are at risk for long-term sequelae including neurodevelopmental delays. PMID- 29338875 TI - Computational Strategies for Exploring Circular RNAs. AB - Recent studies have demonstrated that circular RNAs (circRNAs) are ubiquitous and have diverse functions and mechanisms of biogenesis. In these studies, computational profiling of circRNAs has been prevalently used as an indispensable method to provide high-throughput approaches to detect and analyze circRNAs. However, without an overall understanding of the underlying strategies, these computational methods may not be appropriately selected or used for a specific research purpose, and some misconceptions may result in biases in the analyses. In this review we attempt to illustrate the key steps and summarize tradeoff of different strategies, covering all popular algorithms for circRNA detection and various downstream analyses. We also clarify some common misconceptions and put emphasis on the fields of application for these computational methods. PMID- 29338876 TI - Meeting report: Global vaccine and immunization research forum. AB - Building on the success of the first Global Vaccine and Immunization Research Forum (GVIRF), the World Health Organization, the National Institute of Allergy and Infectious Diseases, part of the National Institutes of Health in the United States of America, and the Bill & Melinda Gates Foundation convened the second GVIRF in March 2016. Leading scientists, vaccine developers, and public health officials from around the world discussed scientific advances and innovative technologies to design and deliver vaccines as well as novel tools and approaches to increase the uptake of vaccines throughout the world. This report summarizes the discussions and conclusions from the forum participants. PMID- 29338878 TI - Mostly "Old wine in new bottles." Reply to commentaries. PMID- 29338877 TI - German travelers' preferences for travel vaccines assessed by a discrete choice experiment. AB - BACKGROUND: Many travelers to regions with endemic infectious diseases do not follow health authorities' recommendations regarding vaccination against vaccine preventable infectious diseases, before traveling. The determinants of individual travelers' decisions to vaccinate before traveling are largely unknown. This study aimed to provide this information using a discrete choice experiment (DCE) administered to four types of German travelers: (1) business travelers; (2) travelers visiting friends and relatives (VFR); (3) leisure travelers; and (4) backpackers. METHODS: A DCE survey was developed, pretested and administered online. It included a series of choice questions in which respondents chose between two hypothetical vaccines, each characterized by four disease attributes with varying levels describing the of risk, health impact, curability and transmissibility of the disease they would prevent (described with four disease attributes with varying levels of risk, health impact, curability and transmissibility), and varying levels of four vaccine attributes (duration of protection, number of doses required, time required for vaccination, and vaccine cost). A random-parameters logit model was used to estimate the importance weights each traveler type placed on the various attribute levels. These weights were used to calculate mean monetary equivalents (MMEs) of changes in each attribute (holding all others constant) and of hypothetical disease-vaccine combinations. RESULTS: All traveler types' choices indicated that they attached the greatest importance to the risk and health impact of disease and to the vaccine cost whereas the other disease and vaccine attributes were less important for their decisions about travel vaccines. An option of not choosing any of the vaccine-pairs presented was rarely selected indicating that travelers' generally prefer to be vaccinated rather than not. The MMEs of changes in vaccine attributes indicated a very high variability between the individual travelers within each type. CONCLUSIONS: The travelers' responses indicated strong preferences for selecting vaccination rather than opting out of vaccination, and disease risk, health impact and vaccine cost were the most important features for vaccine choice. PMID- 29338873 TI - Opioid and Psychostimulant Plasticity: Targeting Overlap in Nucleus Accumbens Glutamate Signaling. AB - Commonalities in addictive behavior, such as craving, stimuli-driven drug seeking, and a high propensity for relapse following abstinence, have pushed for a unified theory of addiction that encompasses most abused substances. This unitary theory has recently been challenged - citing distinctions in structural neural plasticity, biochemical signaling, and neural circuitry to argue that addiction to opioids and psychostimulants is behaviorally and neurobiologically distinct. Recent more selective examination of drug-induced plasticity has highlighted that these two drug classes promote an overall reward circuitry signaling overlap through modifying excitatory synapses in the nucleus accumbens a key constituent of the reward system. We discuss adaptations in presynaptic/postsynaptic and extrasynaptic glutamate signaling produced by opioids and psychostimulants, and their relevance to circuit remodeling and addiction-related behavior - arguing that these core neural adaptations are important targets for developing pharmacotherapies to treat addiction to multiple drugs. PMID- 29338880 TI - Re: Genotype-phenotype pancreatic neuroendocrine tumor relationship in multiple endocrine neoplasia type 1 patients: a 23-year experience at a single institution. PMID- 29338879 TI - Identifying lost surgical needles with visible and near infrared fluorescent light emitting microscale coating. AB - BACKGROUND: Retained foreign bodies (RFOs) have substantial clinical and financial consequences. In laparoscopic surgery, RFOs can be a cause of needing to convert a minimally invasive surgery (MIS) procedure to an open operation. A coating for surgical models was developed to augment localization of needles using fluorescence appropriate for open and minimally invasive surgeries procedures. METHODS: An epoxy matrix containing both dansyl chloride and indocyanine green was coated as visible and near infrared labels, respectively. With ultraviolet excitation, dansyl chloride emits green fluorescence and with NIR excitation, the ICG dye emits radiation observable with specialized near infrared capable laparoscopes. To evaluate the coatings, open and laproscopic surgeries were simulated in rabbits. Surgeons blinded to the type of needles (coated or non-coated) were timed while finding needles in standard conditions and with the use of the adjunct coatings. Control needles not located within 300 seconds were researched with the corresponding near infrared or ultraviolet light. Localization time was evaluated for statistical significance, P < .05. RESULTS: All dual dye coated needles searched utilizing the near infrared camera (n = 26) or ultraviolet light (n= 26) were located within 300 seconds. Conversely, 9 needles in both control settings (no dye usage) were not located within 300 seconds. Mean time to locate control needles in open surgery and laparoscopic surgery was statistically 2-3* greater than time to localization with the use of dye as an adjunct (P = .0027 open, P < .001 laparoscopic). CONCLUSION: Incorporation of a dual-dye fluorescent coating on surgical needles improved the efficiency of locating needles, may minimize the need to convert minimally invasive surgeries procedures to open, and may decrease the consequences of a missed RFO. PMID- 29338881 TI - Infiltration behaviour of elemental mercury DNAPL in fully and partially water saturated porous media. AB - Mercury is a contaminant of global concern due to its harmful effects on human health and for the detrimental consequences of its release in the environment. Sources of liquid elemental mercury are usually anthropogenic, such as chlor alkali plants. To date insight into the infiltration behaviour of liquid elemental mercury in the subsurface is lacking, although this is critical for assessing both characterization and remediation approaches for mercury DNAPL contaminated sites. Therefore, in this study the infiltration behaviour of elemental mercury in fully and partially water saturated systems was investigated using column experiments. The properties affecting the constitutive relations governing the infiltration behaviour of liquid Hg0, and PCE for comparison, were determined using Pc(S) experiments with different granular porous media (glass beads and sands) for different two- and three-phase configurations. Results showed that, in water saturated porous media, elemental mercury, as PCE, acted as a non-wetting fluid. The required entry head for elemental mercury was higher (from about 5 to 7 times). However, due to the almost tenfold higher density of mercury, the required NAPL entry heads of 6.19cm and 12.51cm for mercury to infiltrate were 37.5% to 20.7% lower than for PCE for the same porous media. Although Leverett scaling was able to reproduce the natural tendency of Hg0 to be more prone than PCE to infiltrate in water saturated porous media, it considerably underestimated Hg0 infiltration capacity in comparison with the experimental results. In the partially water saturated system, in contrast with PCE, elemental mercury also acted as a nonwetting fluid, therefore having to overcome an entry head to infiltrate. The required Hg0 entry heads (10.45 and 15.74cm) were considerably higher (68.9% and 25.8%) than for the water saturated porous systems. Furthermore, in the partially water saturated systems, experiments showed that elemental mercury displaced both air and water, depending on the initial water distribution within the pores. This indicates that the conventional wettability hierarchy, in which the NAPL has an intermediate wetting state between the air and the water phases, is not valid for liquid elemental mercury. Therefore, for future modelling of elemental mercury DNAPL infiltration behaviour in variably water saturated porous media, a different formulation of the governing constitutive relations will be required. PMID- 29338882 TI - [Health model, care quality and health spending public]. PMID- 29338883 TI - Epidemiology and risk factors for chronic thromboembolic pulmonary hypertension. PMID- 29338884 TI - Cervical Proprioception in a Young Population Who Spend Long Periods on Mobile Devices: A 2-Group Comparative Observational Study. AB - OBJECTIVES: The purpose of this study was to evaluate if young people with insidious-onset neck pain who spend long periods on mobile electronic devices (known as "text neck") have impaired cervical proprioception and if this is related to time on devices. METHODS: A 2-group comparative observational study was conducted at an Australian university. Twenty-two participants with text neck and 22 asymptomatic controls, all of whom were 18 to 35 years old and spent >=4 hours per day on unsupported electronic devices, were assessed using the head repositioning accuracy (HRA) test. Differences between groups were calculated using independent sample t-tests, and correlations between neck pain intensity, time on devices, and HRA test were performed using Pearson's bivariate analysis. RESULTS: During cervical flexion, those with text neck (n = 22, mean age +/- standard deviation [SD]: 21 +/- 4 years, 59% female) had a 3.9 degrees (SD: 1.4 degrees ) repositioning error, and the control group (n = 22, 20 +/- 1 years, 68% female) had a 2.9 degrees (SD: 1.2 degrees ) error. The mean difference was 1 degrees (95% confidence interval: 0-2, P = .02). For other cervical movements, there was no difference between groups. There was a moderately significant correlation (P <= .05) between time spent on electronic devices and cervical pain intensity and between cervical pain intensity and HRA during flexion. CONCLUSION: The participants with text neck had a greater proprioceptive error during cervical flexion compared with controls. This could be related to neck pain and time spent on electronic devices. PMID- 29338885 TI - Concurrence of rheumatoid arthritis and calcium pyrophosphate deposition disease: A case collection and review of the literature. AB - OBJECTIVE: Calcium pyrophosphate deposition disease (CPDD) is arthritis caused by calcium pyrophosphate (CPP) crystal deposition in joints. It is commonly associated with aging as well as a handful of metabolic syndromes. Recent epidemiologic studies suggest a positive association of CPDD and rheumatoid arthritis (RA). Yet how these diseases are related remains unclear. We set out to describe 21 well-characterized patients with both diagnoses. METHODS: Medical records of patients with both RA and CPDD identified at a single academic practice site were reviewed for age, gender, age of CPDD and RA onset, disease duration, joint involvement, and lab values including rheumatoid factor (RF), cyclic citrullinated peptide antibody (CCP), iron studies, and parathyroid hormone and calcium levels. RESULTS: The mean age of CPDD onset was 69.5 +/- 11.4 years, with a mean RA age onset of 53.9 +/- 16 years, demonstrating a mean lag of 13.4 +/- 10.9 years between diagnoses. The majority of RA patients were diagnosed with CPDD based on the presence of radiographic chondrocalcinosis (15/21). The most commonly involved joint was the knee, followed by the wrist, hip, and shoulder. CONCLUSIONS: These data show that the diagnosis of RA often precedes the diagnosis of CPDD. This asynchronous presentation taken together with the classic age of onset for CPDD and typical pattern of joint involvement supports the hypothesis that CPDD develops in RA patients through similar processes as those that cause the idiopathic forms of this disease. PMID- 29338886 TI - Overweight and obesity status in pregnant women are related to intestinal microbiota and serum metabolic and inflammatory profiles. AB - BACKGROUND: Overweight and obesity may predispose women to clinical complications during their pregnancy. We hypothesize that a higher degree of overweight status is related to a range of aberrations in biomarkers already in early pregnancy. Our objective was to investigate whether intestinal microbiota, serum metabolic and inflammatory profiles differ in relation to the degree of overweight status in pregnant women. METHODS: This study investigated 52 overweight and 47 obese pregnant women in early pregnancy. Fecal samples were analyzed for intestinal microbiota composition by 16S ribosomal RNA gene sequencing and Qiime pipeline. Circulating serum metabolites, including lipids, amino acids and GlycA, a marker of low-grade inflammation, were analyzed by NMR metabolomics and hsCRP was quantified by immunoassay. Serum zonulin levels were analyzed to depict intestinal permeability by Zonulin ELISA kit and LPS activity for endotoxemia by Limulus amebocyte lysate assay. The analyses were adjusted for multiple comparisons using Benjamini-Hochberg procedure for false discovery rate controlling. RESULTS: The relative abundance of bacterial family Prevotellaceae (adjusted P = 0.19) and markers of low-grade inflammation, hsCRP (P = 0.0015) and GlycA (P < 0.001) and three branched chain amino acids (isoleucine, adjusted P = 0.024; leucine, adjusted P = 0.026; valine, adjusted P = 0.10) and one aromatic amino acid (phenylalanine, adjusted P = 0.050) and concentrations of several VLDL particles and lipid measures in several VLDL particles were higher in obese pregnant women compared to their overweight pregnant counterparts (adjusted P < 0.12). In contrast, lipid measures in a few HDL particles and many fatty acids were lower in obese compared to overweight pregnant women (adjusted P < 0.12). CONCLUSIONS: The detected alterations in intestinal microbiota and metabolic and inflammatory profiles related to obesity status may offer new alternative tools to supplement standard clinical measures to predict the risk for metabolic alterations during the early phase of pregnancy. PMID- 29338887 TI - Reply to Crivelli et al.: The different faces of fear and threat. Evolutionary and cultural insights. PMID- 29338888 TI - Vibrio communities in scleractinian corals differ according to health status and geographic location in the Mediterranean Sea. AB - The increase in seawater temperature associated with global warming is a significant threat to coral health and is linked to increasing mass mortality events and Vibrio-related coral diseases. In the Mediterranean Sea, the endemic Cladocora caespitosa and the invasive species Oculina patagonica are the main scleractinian corals affected by mass mortalities. In this study, culturable Vibrio spp. assemblages associated with healthy and unhealthy colonies of these two shallow coral species were characterized to assess the presence of Vibrio pathogens in tissue necrosis. Vibrio communities associated with O. patagonica and C. caespitosa showed geographical differences, although these became more homogeneous in unhealthy specimens of both species. Furthermore, the number of recovered Vibrio specimens was more than five times higher in unhealthy than in healthy corals. Within these culturable vibrios, the known pathogens Vibrio mediterranei and Vibrio coralliilyticus were present in unhealthy colonies of both coral species in the two localities, suggesting that they could play a role in the health status of C. caespitosa and thus act as generalist pathogens in Mediterranean corals. Nonetheless, a clonal type of V. coralliilyticus detected in C. caespitosa was not associated with disease signs, suggesting that this species could encompass assemblages with different levels of virulence. PMID- 29338890 TI - Corrigendum on "Isorhamnetin augments the anti-tumor effect of capeciatbine through the negative regulation of NF-kappaB signaling cascade in gastric cancer" [Cancer Lett. 363 (1) (2015) 28-36]. PMID- 29338889 TI - Situational HIV stigma and stimulant use: A day-level autoregressive cross-lagged path model among HIV-positive gay and bisexual men. AB - BACKGROUND: Data on the association between HIV stigma and drug use are scarce, but some research suggests that internalized HIV stigma may be associated with increased drug use and that this association may be at least partially mediated by emotion dysregulation. We sought to test this hypothesis with event-level data to more accurately tease out the co-occurrence of these phenomena. METHODS: We conducted a 21-day, twice-daily ecological momentary assessment study with a sample of 52 HIV-positive gay and bisexual men. We utilized multivariate multilevel path analysis to test an autoregressive cross-lagged model of the direct and indirect effects of situational-level internalized HIV stigma and emotion dysregulation on non-prescription stimulant drug use. RESULTS: As hypothesized, we observed significant concurrent effects of internalized HIV stigma on emotion dysregulation as well as autoregressive associations of internalized HIV stigma and emotion dysregulation with themselves across the day. Furthermore, findings revealed direct effects of internalized HIV stigma on later emotion dysregulation and increased likelihood of stimulant use, but no direct effect of emotion dysregulation on stimulant use. CONCLUSIONS: Situational increases in internalized HIV stigma appear to exert a direct risk-enhancing effect on the likelihood of daily stimulant drug use and do not appear to do so through emotion dysregulation. Future research is needed to more carefully examine distinct affective experiences and regulation strategies to better understand what mechanism links internalized HIV stigma with drug use behaviors. PMID- 29338891 TI - Gray and white matter changes and their relation to illness trajectory in first episode psychosis. AB - Previous works have studied structural brain characteristics in first-episode psychosis (FEP), but few have focused on the relation between brain differences and illness trajectories. The aim of this study is to analyze gray and white matter changes in FEP patients and their relation with one-year clinical outcomes. A sample of 41 FEP patients and 41 healthy controls (HC), matched by age and educational level was scanned with a 3T MRI during the first month of illness onset. One year later, patients were assigned to two illness trajectories (schizophrenia and non-schizophrenia). Voxel-based morphometry (VBM) was used for gray matter and Tract-based spatial statistics (TBSS) was used for white matter data analysis. VBM revealed significant and widespread bilateral gray matter density differences between FEP and HC groups in areas that included the right insular Cortex, the inferior frontal gyrus and orbito-frontal cortices, and segments of the occipital cortex. TBSS showed a significant lower fractional anisotropy (FA) in 8 clusters that included segments of the anterior thalamic radiation, the left body and forceps minor of corpus callosum, the right anterior segment of the inferior fronto-occipital fasciculus and the anterior segments of the cingulum. The sub-groups comparison revealed significant lower FA in the schizophrenia sub-group in two clusters: the anterior thalamic radiation and the anterior segment of left cingulum. These findings are coherent with previous morphology studies. The results suggest that gray and white matter abnormalities are present at early stages of the disease, and white matter differences may distinguish different illness prognosis. PMID- 29338892 TI - Treatment of intraoral ranulas with a two-incision fistula technique: the management of recurrence. AB - The two-incision fistula technique for the treatment of oral ranulas has recently been introduced to clinical practice. We reviewed 52 patients who had recurrences after this treatment, and explored the possible causes and underlying mechanisms. A total of 13/53 ranulas had recurred, so we repeated the operation, and one patient had the ranula and the sublingual gland resected. We found that the thin mucous membrane cracked at the double incisions, which led to the formation of a fistula and promoted the drainage of cystic fluid. The results indicated that the recurrence of ranulas after the two-incision fistula technique can be reduced further. To avoid recurrence, the technique should be adjusted slightly, depending on the type of ranula present. PMID- 29338893 TI - The Desired Role of Health Care Providers in Guiding Older Patients With Distal Radius Fractures: A Qualitative Analysis. AB - PURPOSE: Understanding patient preferences for shared decision making is valuable for surgeons to advance patient-centered care, particularly in cases where there is not a clearly superior treatment option, like distal radius fracture. The existing evidence presents conflicting views on the desired role of the provider among older patients when making medical decisions. We aimed to investigate the perceived versus desired role of the provider in older adult patients with distal radius fracture. METHODS: Thirty patients (>=62 years old) who had sustained a distal radius fracture within the past 5 years were recruited from the screening process of the Wrist and Radius Injury Surgical Trial at the principal investigator's site using purposive sampling. A trained member of the research team conducted interviews in a semistructured format with the help of an interview guide. Findings were derived following the principles of grounded theory. RESULTS: Participants experienced varied levels of shared decision making with the hand surgeon. Subjects' perceived role of the surgeon did not always match their desired role. Most patients placed distinct trust in the recommendations of hand specialists regarding the technical aspects of the treatment. Nonetheless, respondents wanted to provide input when decisions pertained to outcomes or functionality. Many patients sought outside support from family or friends in the health care field, regardless of the outside source's medical specialty. CONCLUSIONS: Despite conflicting evidence, most older adult patients desire a shared approach when making treatment decisions. Exchanging information and preferences on outcomes of each treatment option may be more important to the patient than detailing the specific technical aspects of their care. CLINICAL RELEVANCE: To provide high quality care, surgeons should evaluate the desired role of the patient to make treatment decisions at the start of their interaction. Surgeons must be aware of outside medical influences that guide their patients' decision-making processes. PMID- 29338894 TI - LGBT Populations' Barriers to Cancer Care. AB - OBJECTIVE: To describe lesbian, gay, bisexual, and transgender (LGBT) individuals' barriers to accessing and receiving quality cancer care. DATA SOURCES: Published data on cancer care and studies of LGBT individuals. CONCLUSION: There is a clustering of barriers among LGBT individuals, which suggests multiple inequities exist in LGBT individuals' cancer care, although data on disparities along the cancer control continuum are not consistently available. IMPLICATIONS FOR NURSING PRACTICE: Nurses can make a difference in LGBT individuals' cancer care by obtaining training on LGBT health and their cancer-related needs and by providing a welcoming and respectful relationship with LGBT patients. PMID- 29338895 TI - Feasibility of total intravenous anesthesia by cardiologists with the support of anesthesiologists during catheter ablation of atrial fibrillation. AB - BACKGROUND: The optimal methodology for sedation and anesthesia during atrial fibrillation (AF) ablation has not been well established. We assessed the feasibility of total intravenous anesthesia (TIVA) by cardiologists with support from anesthesiologists during AF ablation and quality of pulmonary vein isolation (PVI) and single procedure success rate at 12 months. METHODS: TIVA was performed by cardiologists using IV propofol and fentanyl under controlled ventilation via i-gelTM without neuromuscular blocking drugs in 160 consecutive patients (80 nonparoxysmal) with no anticipated difficult airway or other severe diseases. Anesthesiologists were requested to be on standby during the procedure. The incidence of anesthesia-associated complications and ablation-associated complications were assessed. To evaluate the quality of PVI, the prevalence of acute adenosine triphosphate (ATP)-provoked PV reconnections and late PV reconnections among those requiring a redo procedure was analyzed. RESULTS: TIVA was successfully completed in 152 patients (95%). In five (3%), we requested help from anesthesiologists, and in three (2%), TIVA was abandoned. No major anesthesia-associated complications were observed. Ablation-associated complications were observed in seven patients (4%). ATP provocation test was performed in 141 patients, and no acute PV reconnections were observed in 134 (95%). Success rates at 12 months were 85% of patients off antiarrhythmic drugs. Twenty-one of 24 patients with recurrence underwent a redo session, and 18 (86%) had no PV reconnections. CONCLUSIONS: TIVA by cardiologists with support from anesthesiologists during AF ablation may be feasible. The success rate at 12 months was high, and prevalence of acute and late PV reconnection was very low. PMID- 29338896 TI - Novel bioabsorbable polymer and polymer-free metallic drug-eluting stents. AB - The introduction of drug-eluting stents (DES) significantly reduced angiographic restenosis and the clinical need for revascularization following percutaneous coronary intervention. However, concerns remain regarding the long-term safety and efficacy of DES. The use of durable polymers for drug elution that have limited biocompatibility is thought to contribute toward DES failure, by promoting an adverse local inflammatory response and vascular toxicity. Biodegradable polymer and polymer-free metallic stents represent two novel technological solutions to this challenging clinical problem. This review summarizes the available clinical evidence supporting the use of either biodegradable polymer or polymer-free DES platforms. PMID- 29338898 TI - Acute Respiratory Failure Due to Chronic Tophaceous Gout With Laryngeal and Bronchial Involvement: An Unusual Complication. PMID- 29338897 TI - Asymptomatic bacteriuria and urinary tract infection in pregnant women with and without diabetes: Cohort study. AB - OBJECTIVE: To compare the prevalence of asymptomatic bacteriuria (ASB) and the incidence of urinary tract infection (UTI) in pregnant women with and without diabetes mellitus (DM) or gestational DM (GDM). STUDY DESIGN: We performed a cohort study in five hospitals and two midwifery clinics in the Netherlands. Pregnant women with and without DM or GDM were screened for the presence of ASB around 12 and 32 weeks' gestation. Characteristics of participants as well as outcome data were collected from questionnaires and medical records. ASB was defined as the growth of at least 10e5 cfu/ml isolated from the urine of a woman without UTI complaints. UTI was considered to be present when a treating physician had diagnosed UTI and prescribed antibiotics. RESULTS: We studied 202 women with and 272 women without DM or GDM. Of all women 31.7% with and 94.9% without DM or GDM provided a week 12 sample. The prevalence of ASB was comparable in women with and without DM or GDM (12 weeks' n = 322; 4.7% and 2.3%; relative risk (RR) 2.02; 95% confidence interval (CI) 0.52-7.84; 32 weeks' n = 422; 3.2% and 3.0%; RR 1.06; 95% CI 0.36-3.09), as was the incidence of UTI (16.8% and 12.9%; RR 1.31; 95% CI 0.85-2.02). Neither ASB nor UTI were associated with preterm birth or babies being small for gestational age. CONCLUSION: In pregnant women with and women without DM or GDM, the overall prevalence of ASB was low. Neither ASB nor UTI did differ significantly between the groups. Our data discourage a routine ASB screen and treat policy in pregnant women with DM or GDM. PMID- 29338899 TI - Hyponatremia in COPD: a Little Known Complication. PMID- 29338900 TI - Noninvasive ventilation failure in pneumonia patients >=65years old: The role of cough strength. PMID- 29338901 TI - High degree heart block following suicide attempt by hanging. PMID- 29338902 TI - Stage-specific expression of DDX4 and c-kit at different developmental stages of the porcine testis. AB - Spermatogenesis begins with spermatogonial stem cells (SSCs), which are located in the basement membrane of the adult testes. Previous studies have described specific biomarkers for undifferentiated porcine spermatogonia or SSCs; however, these markers are not sufficient to understand spermatogenesis at different developmental stages. The objective of this study was characterize the expression of DEAD-Box polypeptide 4 (DDX4, also known as VASA) and tyrosine-protein kinase kit (c-kit), as potential markers of male germ cells in the porcine testis. In porcine testis tissue at prepubertal stages (5, 30, and 60 days), DDX4 and c-kit protein expression was detected in the most undifferentiated spermatogonia, which also express protein gene product 9.5 (PGP9.5). However, in porcine testis tissues from pubertal and postpubertal stages (90, 120, and 150 days), DDX4 and c kit were not detected in PGP9.5-positive undifferentiated spermatogonia. The DDX4 expression pattern was similar to that of c-kit in the porcine testis. In adult porcine testes, DDX4-expressing cells were located on the lumenal side, compared to synaptonemal complex protein 3-positive primary spermatocytes, but DDX-4 was not co-expressed with acrosin, a known acrosome marker. In addition, DDX4 was detected in PGP9.5-expressing porcine SSCs in culture. Based on our results, we suggest that DDX4 and c-kit are putative markers of undifferentiated spermatogonia in the prepubertal porcine testis. While in the postpubertal porcine testis, they are markers of differentiated spermatocytes. These findings may facilitate future studies of porcine spermatogenesis. PMID- 29338903 TI - Clinical workflow optimization to improve 4DCT reconstruction for Toshiba Aquilion CT scanners. AB - Respiratory motion remains a source of major uncertainties in radiotherapy. Respiratory correlated computed tomography (referred to as 4DCT) serves as one way of reducing breathing artifacts in 3D-CTs and allows the investigation of tumor motion over time. The quality of the 4DCT images depends on the data acquisition scheme, which in turn is dependent on the vendor. Specifically, the only way Toshiba Aquilion LB CT scanners can reconstruct 4DCTs is a cycle-based reconstruction using triggers provided by an external surrogate signal. The accuracy is strongly dependent on the method of trigger generation. Two consecutive triggers are used to define a breathing cycle which is divided into respiratory phases of equal duration. The goal of this study is to identify if there are advantages in the usage of local-amplitude based sorting (LAS) of the respiration motion states, in order to reduce image artifacts and improve 4DCT quality. Furthermore, this study addresses the generation and optimization of a clinical workflow using as surrogate motion monitoring system the SentinelTM (C RAD AB, Sweden) optical surface scanner in combination with a Toshiba Aquilion LB CT scanner. For that purpose, a phantom study using 10 different breathing waveforms and a retrospective patient study using the 4DCT reconstructions of 10 different patients has been conducted. The error in tumor volume has been reduced from 2.9+/-3.7% to 2.7+/-2.6% using optimal cycle-based triggers (manipulated CBS) and to 2.7+/-2.2% using LAS in the phantom study. Moreover, it was possible to decrease the tumor volume variability from 5.0+/-3.6% using the original cycle based triggers (original CBS) to 3.5+/-2.5% using the optimal triggers and to 3.7+/-2.7% using LAS in the patient data analysis. We therefore propose the usage of the manipulated CBS, also with regard to an accurate and safe clinical workflow. PMID- 29338904 TI - Pain and its Impact on the Functional Ability in Children Treated at the Children's Cancer Center of Lebanon. AB - PURPOSE: The purpose of this study was to describe the characteristics of pain in children under treatment at the Children Cancer Centre of Lebanon at the American University of Beirut Medical Centre. Design and Methods A cross-sectional correlational survey was used. The Adolescent Pediatric Pain Tool and the Functional Disability Inventory were used to examine the characteristics of pain experienced in a consecutive sample of children treated at the CCCL and its impact on their functional abilities. RESULTS: The mean age of the 62 participants was 12.3 (SD 2.9). The overall mean pain intensity rating for the sample was 5.06 (SD 1.87) on a 10 cm Word Graphic Rating Scale. More than one half of the children in the sample (57.4%) reported having pain "sometimes" with a median duration of two hours per pain episode. The most frequently reported locations of pain were the forehead, the abdomen, and the lower back. For the most part, the children used sensory words to describe their pain experience. The children reported moderate levels of functional disability (mean FDI score 25.04, SD 13.81). Multivariable linear regression analysis identified frequency, duration, location, use of affective descriptors, and treatments as statistically significant predictors of pain intensity. CONCLUSION: Regrettably, the findings reported attest once again to unrelieved pain in a pediatric oncology population. PRACTICE IMPLICATIONS: Policy makers can contribute to pain control by introducing legislation and national policies to ensure adequate pain management for children with cancer in Lebanon. PMID- 29338905 TI - Posterior Reversible Encephalopathy Syndrome: A Rare Childhood Case with Unconsciousness. AB - BACKGROUND: Posterior reversible encephalopathy syndrome (PRES) is a condition characterized by seizures, altered consciousness, visual disturbances, and headache. Characteristic findings on neuroimaging include cerebral edema, typically involving the parieto-occipital white matter. PRES has been associated with hypertension, autoimmune disease, and Henoch-Scholein purpura (HSP), but few cases have been reported, and fewer cases of PRES have been reported in children. CASE REPORT: We report the case of a 4-year-old girl who presented with blindness and semi-consciousness. The patient had no significant medical history and no abnormalities on physical examination or laboratory testing, although she had slightly elevated blood pressure. After hospitalization, the patient showed some characteristic signs of HSP and cranial magnetic resonance imaging revealed PRES as the cause of semi-consciousness. In our discussion, we examine the clinical features of PRES and remarkable points for the clinical diagnosis and management of this rare but important disease. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Although reports of PRES in children are rare, PRES should be considered in the differential diagnosis of children presenting with disturbance of consciousness. Emergency physicians should consult with pediatric physicians to confirm diagnoses of PRES and determine an appropriate treatment plan, given its variable etiology. Measurements of blood pressure, which are often missing in pediatric cases, can help physicians to arrive at a correct diagnosis. PMID- 29338906 TI - Virtual computed tomography morphometry of the patella for estimation of sex using postmortem Japanese adult data in forensic identification. AB - In forensic anthropological identification of human remains and single bones, computed tomography (CT) data analysis facilitates volumetric and radiographic density analyses, and a recently developed automated analysis system markedly improved the performance, accuracy, and reproducibility of three-dimensional (3 D) reconstruction. The present study aimed to investigate virtual CT morphometry of the patella for the estimation of sex using postmortem CT data of forensic autopsy cases of Japanese individuals aged >=18 years (total n=220; 110 males and 110 females; estimated postmortem interval <88h), especially with regard to the efficacy of 3-D bone volumetry. Sex-related differences were detected for all parameters (males>females; p<0.0001), but the differences were the most notable for bone mass volume; the estimated cut-off values (cm3) for discriminating males and females were 20.35 with a sensitivity and specificity of 0.85 and 0.91 for the left side and 19.96 with a sensitivity and specificity of 0.83 and 0.92 for the right side, respectively. The mean CT value showed an age-dependent decrease and was particularly low in females aged >60years. These findings indicate the efficacy of virtual CT morphometry of the patella using an automated analyzer for sex estimation. PMID- 29338907 TI - New photodynamic molecular beacons (PMB) as potential cancer-targeted agents in PDT. AB - Further improvements in Photodynamic therapy (PDT) necessitate that the dye targets more selectively tumour tissues or neovascularization than healthy cells. Different enzymes such as matrix metalloproteinases (MMPs) are overexpressed in tumour areas. Among these MMPs, gelatinases (MMP-2 and MMP-9) and its activator MMP-14 are known to play a key role in tumour angiogenesis and the growth of many cancers such as glioblastoma multiforme (GBM), an aggressive malignant tumour of the brain. These last years, the concept of photodynamic molecular beacons (PMB) became interesting for controlling the photosensitizer's ability to generate singlet oxygen (1O2) close to target biomolecules as MMPs. We report herein novel PMBs triggered by MMP-2 and/or MMP-9 and/or MMP-14, comprising a photosensitizer and a singlet oxygen quencher linked by MMP cleavable peptide linker (H GRIGFLRTAKGG-OH). First of all, we focused on the synthesis and the photophysical study of different derivatives photosensitizer-peptide. This preliminary work concluded on an influence of the nature and the distance from the peptide, but not of the position of the photosensitizer in these derivatives on the proteolytic enzymatic action. The nature of the quencher used (a blackberry quencher (BBQ-650) or a black hole quencher (BHQ3)) does not influence the enzymatic action. We also studied the influence of an additional PEG spacer. Finally, the synthesis, the singlet oxygen quenching efficiency and the enzymatic activation of these new MMP- cleavable-PMBs were compared. PMID- 29338908 TI - Relationship between neuropathy proximal to the suprascapular nerve and rotator cuff tear in a rodent model. AB - BACKGROUND: Rotator cuff tears are believed to coexist with cervical spine lesions. In cases of preexisting neuropathy, such as cervical spine lesions, fatty degeneration has likely already occurred due to the neuropathy. In these cases, rotator cuff tear is thought to occur easily because of preexisting extensive fatty degeneration and degeneration of the tendons due to neuropathy. This study aimed to evaluate the effects of paralysis due to neuropathy proximal to the suprascapular nerve on the supraspinatus and infraspinatus tendons using a rat model of brachial plexus paralysis. METHODS: This study included fifteen, 8 week-old Sprague-Dawley rats. The left shoulder was included in the paralysis group and the contralateral shoulder constituted the sham group. Biomechanical testing (evaluated maximum tear force, maximum displacement and Young's modulus) (n = 10) and histological analyses (n = 5) (using the Bonar scale) were performed at 12 weeks postoperatively to confirm the degeneration of the tendon. RESULTS: The mean maximum tear force was significantly lower in the paralysis group than in the sham group (P = 0.008), indicating that rotator cuff tears occurred with a lower force in the paralysis group. Additionally, the average Young's modulus was significantly greater in the paralysis group than in the sham group (P = 0.003), indicating that the rotator cuff muscle became hard and inflexible in the paralysis group. The Bonar scales of the histological analyses were significantly higher in the paralysis group (total score = 7.04 +/- 0.61) than the sham group (total score = 0) (p < 0.0001). CONCLUSIONS: If neuropathy of proximal to the suprascapular nerve, such as cervical spine or brachial plexus lesion, exists, weakness and degeneration of the rotator cuff tendon and stiffness of the rotator cuff muscle develop. Neuropathy is likely a cause of rotator cuff tears. PMID- 29338909 TI - Essential structure of orexin 1 receptor antagonist YNT-707, Part II: Drastic effect of the 14-hydroxy group on the orexin 1 receptor antagonistic activity. AB - The 14-dehydration- and 14-H derivatives of the orexin 1 receptor (OX1R) antagonist YNT-707 (2) were synthesized. The obtained derivatives showed higher affinities for OX1R than the corresponding 14-hydroxy derivatives. The conformational analysis suggested that the 17-sulfonamide groups in the derivatives without the 14-hydroxy group have a greater tendency to be oriented toward the upper side of the D-ring compared with the 14-hydroxy derivatives. Additionally, the 14-dehydration-derivative with 6alpha-amide side chain showed significantly higher affinity than the 14-hydroxy derivative, while the corresponding 14-H derivative showed only slightly higher affinity. Thus, the 14 hydroxy group strongly affects the affinity of the antagonist for the OX1R. PMID- 29338910 TI - Synthesis of deuterium-labelled analogues of NLRP3 inflammasome inhibitor MCC950. AB - This study describes the syntheses of di, tetra and hexa deuterated analogues of the NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome inhibitor MCC950. In di and tetra deuterated analogues, deuteriums were incorporated into the 1,2,3,5,6,7-hexahydro-s-indacene moiety, whereas in the hexa deuterated MCC950 deuteriums were incorporated into the 2-(furan-3-yl)propan 2-ol moiety. The di deuterated MCC950 analogue was synthesised from 4-amino 3,5,6,7-tetrahydro-s-indacen-1(2H)-one 5. Tetra deuterated analogues were synthesised in 10 chemical steps starting with 5-bromo-2,3-dihydro-1H-inden-1-one 9, whereas the hexa deuterated analogue was synthesised in four chemical steps starting with ethyl-3-furoate 24. All of the compounds exhibited similar activity to MCC950 (IC50 = 8 nM). These deuterated analogues are useful as internal standards in LC-MS analyses of biological samples from in vivo studies. PMID- 29338911 TI - Rosette-forming glioneuronal tumor of the fourth ventricle. Two cases report and literature review. AB - Rosette-forming glioneuronal tumor of the fourth ventricle is a primary central nervous system tumor introduced in the group of glioneuronal tumors in the WHO classification of 2007. Initially it was described around the fourth ventricle, but recently have been published cases in different locations. We present 2cases of this rare tumor, both surgically treated. The first in a 41 year old man with typical symptoms of posterior fossa injury. The second in an 18 year old woman, with incidental finding of posterior fossa injury that was also surgically treated. We present pre- and post-surgical magnetic resonance images, histological pictures of this tumor and we make a review of the literature. PMID- 29338912 TI - Surgical outcomes of traumatic cervical fractures in patients with ankylosing spondylitis. AB - OBJECTIVE: Ankylosing spondylitis is an inflammatory rheumatic disease mainly affecting the axial skeleton. The rigid spine may secondarily develop osteoporosis, further increasing the risk of spinal fracture. In this study, we reviewed fractures in patients with ankylosing spondylitis that had been clinically diagnosed to better define the mechanism of injury, associated neurological deficit, predisposing factors, and management strategies. METHODS: Between January 2004 and December 2014, 6 patients with ankylosing spondylitis and neurological complications after injuries were treated. Neuroimaging evaluation was obtained in all patients by using plain radiography, CT scan, and MR imaging. The ASIA Impairment Scale was used in order to evaluate the neurologic status of the patients. Surgical decision was based on relationship of neurological involvement and spinal instability. RESULTS: A total of 6 cervical injuries were identified in a review of patients in whom ankylosing spondylitis had been diagnosed. Of these, 2 patients were associated with a hyperextension mechanism and 4 cases by flexion mechanism. Posttraumatic neurological deficits were demonstrated in all 6 cases and neurological improvement after surgery was observed in 4 of these cases. The two cases were not improved by the surgery was on a case by presenting a degree of Asia A and another patient who initially improved with surgery but died of pneumonia in the postoperative. CONCLUSIONS: Patients with ankylosing spondylitis are highly susceptible to spinal fracture and spinal cord injury even after only mild trauma. Initial CT or MR imaging of the whole spine is recommended even if the patient's symptoms are mild. The patient should also have early surgical stabilization to correct spinal deformity and avoid worsening of the patient's neurological status. PMID- 29338913 TI - Discrepancies in staging, treatment, and delays to treatment may explain disparities in bladder cancer outcomes: An update from the National Cancer Data Base (2004-2013). AB - INTRODUCTION: We sought to characterize national disparities in the diagnosis of advanced stage bladder cancer. Among patients with advanced disease, we explored disparities in overall survival, treatment, and time to treatment. METHODS AND MATERIALS: We queried the National Cancer Data Base for patients diagnosed with bladder urothelial carcinoma. We used multivariable logistic regression to assess the association between covariates and diagnosis of advanced disease (AJCC stage III-IV). We used Kaplan-Meier, log-rank, and Cox proportional analyses to evaluate disparities in overall survival for patients with advanced disease. Receipt of treatment and delays to treatment were compared between subgroups. RESULTS: Among our cohort of 328,560 patients, 7.6% were diagnosed with advanced disease. Female sex, black race, Hispanic ethnicity, and living in a region of lower income and education were all associated with increased odds of advanced disease. Female sex (HR = 1.16; 95% CI: 1.12-1.20; P<0.001), black race (HR = 1.10; 95% CI: 1.04-1.18; P = 0.002), and lower regional income levels (fourth quartile compared to first: HR = 1.08; 95% CI: 1.02-1.16; P = 0.016) portended worse overall survival. Chemotherapy (HR = 0.55, 95% CI: 0.53-0.57; P<0.001) and radical cystectomy (HR = 0.61; 95% CI: 0.59-0.64, P<0.001) improved survival. Females, black patients, and patients from regions of lower income and education were less likely to receive treatment and less likely to receive treatment within 12 weeks of diagnosis. CONCLUSION: There are several disparities in the diagnosis and treatment of advanced bladder cancer. Overall survival for certain groups may benefit from earlier diagnosis and improved timely access to potentially life prolonging treatment. PMID- 29338914 TI - Prophylactic antibiotics following radical cystectomy reduces urinary tract infections and readmission for sepsis from a urinary source. AB - INTRODUCTION: Urinary tract infections (UTI) and sepsis contribute significantly to the morbidity associated with cystectomy and urinary diversion in the first 30 days. We hypothesized that continuous antibiotic prophylaxis decreased UTIs in the first 30 days following radical cystectomy. METHODS: Patients with urothelial carcinoma of the bladder who underwent a radical cystectomy with urinary diversion for bladder cancer at Oregon Health and Science University from January 2014 to May 2015 were included in the study. The ureteral stents were kept for 3 weeks in both groups. In October 2014, we enacted a Department Quality Initiative to reduce UTIs. Following the initiative, all radical cystectomy patients were discharged home on antibiotic prophylaxis following a postoperative urine culture obtained during hospitalization. To evaluate the effectiveness of the initiative, the last 42 patients before the initiative were compared to the first 42 patients after the initiative with regard to the rate of UTI in the first 30 days following surgery. We used a combination of comprehensive chart review and the American College of Surgeons' National Surgical Quality Improvement Program (NSQIP) to determine UTI and readmission for urosepsis in the first 30 days following surgery. This ensured accurate capture of all patients developing a UTI. RESULTS: A total of 12% in the prophylactic antibiotic group had a documented UTI, whereas 36% in the no antibiotic group had a urinary tract infection (P<0.004). A total of 1 (2%) patient in the antibiotic group was readmitted for urosepsis whereas 7 (17%) patients in the no antibiotic group were admitted for urosepsis (P = 0.02). There was no association noted between urine culture at discharge and the development of UTI in the 30-day postdischarge period (P = 0.75). The median time to UTI was 19 days and the most common organism was Enterococcus (32%). Thirty-percent of patients not receiving prophylaxis developed a UTI 1 day after ureteral stent removal. No patients had a UTI following stent removal in the prophylaxis group. No adverse antibiotic related events were noted. CONCLUSION: Prophylactic antibiotics in the 30 days following radical cystectomy is associated with a significant decrease in urinary tract infections and readmission from urosepsis after surgery. PMID- 29338915 TI - The significance of avoiding household food waste - A means-end-chain approach. AB - Many humans suffer from hunger, while edible food is discarded. This study aims at showing the importance of avoiding food waste in households and its causes by applying the means-end-chain analysis. Additional the means-end-chain approach should be examined in how far the method is suitable to get insights towards this topic. Consumer backgrounds in terms of feelings and attitudes regarding food waste should be shown, with the particular question why food waste personally is important. The data collection occurred utilizing the hard laddering method within a quantitative online survey. The results indicate that avoiding food waste is important for the greater part of consumers, as many claim to have a bad conscience, seeing it as morally wrong and reprehensible to waste food. A sample breakdown of gender, age and income points differences among these groups in regards to psychological consequences and value systems. Financial and environmental aspects have a lesser impact on attitudes and feelings regarding food waste in households. PMID- 29338916 TI - Patent foramen ovale closure vs. medical therapy for recurrent stroke prevention: Evolution of treatment effect during follow-up. AB - BACKGROUND: Little is known regarding changes in treatment effect over time associated with patent foramen ovale (PFO) closure among patients with embolic stroke of unknown origin. METHODS: We reconstructed Kaplan-Meier curves for stroke from individual randomized trials comparing PFO closure vs. medical therapy among patients with embolic stroke. Random effects Cox-regression analyses were performed in order to estimate hazard ratios (HRs) with 95% confidence intervals (95%CIs). RESULTS: A total of 2531 patients enrolled across 4 randomized trials were included. PFO closure was associated with a significant reduction in the risk of stroke at longest available follow-up (HR 0.18, 95%CI 0.06 to 0.59, P=0.005). However, recurrent stroke was already significantly reduced among patients randomized to PFO closure at 1-year (HR 0.40, 95%CI 0.20 to 0.80, P=0.010), with the treatment effect remaining consistent (P-for interaction=0.356) between 1- and 5-year (HR 0.14, 95%CI 0.05 to 0.55, P=0.005) and beyond 5-year (HR 0.20, 95%CI 0.03 to 1.19, P=0.077). CONCLUSIONS: Among patients with embolic stroke of unknown origin, PFO closure reduces the risk of stroke compared with medical therapy, with a significant reduction in recurrences starting already within 1-year after percutaneous PFO closure. PMID- 29338917 TI - Exercise training in adults with repaired tetralogy of Fallot: A randomized controlled pilot study of continuous versus interval training. AB - INTRODUCTION: Adults with repaired tetralogy of Fallot (ToF) have impaired exercise capacity, vascular and cardiac autonomic function, and quality of life (QoL). Specific effects of high-intensity interval or moderate continuous exercise training on these parameters in adults with repaired ToF remain unknown. METHODS AND RESULTS: Thirty adults with repaired ToF were randomized to either high-intensity interval, moderate intensity continuous training (36 sessions, 2-3 times a week) or usual care (no supervised exercise). Exercise capacity, flow mediated vasodilation, pulse wave velocity, NT-proBNP and fibrinogen levels, heart rate variability and recovery, and QoL (SF-36 questionnaire) were determined at baseline and after the intervention period. Twenty-seven patients (mean age 39+/-9years, 63% females, 9 from each group) completed this pilot study. Both training groups improved in at least some parameters of cardiovascular health compared to no exercise. Interval-but not continuous training improved VO2peak (21.2 to 22.9ml/kg/min, p=0.004), flow-mediated vasodilation (8.4 to 12.9%, p=0.019), pulse wave velocity (5.4 to 4.8m/s, p=0.028), NT-proBNP (202 to 190ng/L, p=0.032) and fibrinogen levels (2.67 to 2.46g/L, p=0.018). Conversely, continuous-but not interval-training improved heart rate variability (low-frequency domain, 0.32 to 0.22, p=0.039), heart rate recovery after 2min post-exercise (40 to 47 beats, p=0.023) and mental domain of SF-36 (87 to 95, p=0.028). CONCLUSION: Both interval and continuous exercise training modalities were safe. Interval training seems more efficacious in improving exercise capacity, vascular function, NT-proBNP and fibrinogen levels, while continuous training seems more efficacious in improving cardiac autonomic function and QoL. (Clinicaltrials.gov, NCT02643810). PMID- 29338918 TI - Filling pressures in Fontan revisited: Comparison between pulmonary artery wedge, ventricular end-diastolic, and left atrial pressures in adults. AB - BACKGROUND: Pulmonary artery wedge pressure (PAWP) has been shown to correlate better with left atrial pressure (LAP) than ventricular end-diastolic pressure (VEDP) in acquired heart disease. The correlation between VEDP and PAWP and their performance as surrogates for LAP in Fontan patients is unknown. METHODS: Offline single-beat simultaneous measurement of PAWP and VEDP was performed in 50 adult Fontan patients and non-simultaneous hemodynamic data abstracted for calculation of pulmonary vascular resistance (PVR). For the evaluation of PAWP and VEDP as surrogates for LAP, 14 fenestrated adult Fontan patients were included. RESULTS: Mean age was 34.2+/-10years and 54% of patients were female. Tricuspid atresia and double inlet left ventricle were the most common congenital defects (44% and 20%, respectively). Simultaneous mean VEDP was 10.8+/-4.6mmHg and mean PAWP was 11+/-4.6mmHg; the PAWP-VEDP correlation was 0.91 (p<0.001). Using non simultaneous data, right-sided (mean difference 0.6WU.m2, 95% CI 0.2-1.0; p=0.005) and left-sided (mean difference 0.5WU.m2, 95% CI 0.1-0.9; p=0.02) PVRs were significantly higher when PAWP rather than VEDP was used. In fenestrated patients, LAP-right PAWP and LAP-left PAWP correlations were 0.97 and 0.95 (p<0.0001 for both), respectively, whereas the correlation between LAP-VEDP was 0.76 (p=0.007). CONCLUSIONS: PAWP and VEDP correlate reasonably well in adult Fontan patients but PAWP is a better surrogate for LAP. The use of VEDP instead of PAWP appears to significantly underestimate PVR in these patients. PMID- 29338919 TI - Agreement among Magnetic Resonance Imaging/Magnetic Resonance Cholangiopancreatography (MRI-MRCP) and Endoscopic Ultrasound (EUS) in the evaluation of morphological features of Branch Duct Intraductal Papillary Mucinous Neoplasm (BD-IPMN). AB - BACKGROUND/OBJECTIVES: To evaluate the agreement between the imaging modalities MRI-MRCP and EUS in cystic lesions of the pancreas which were thought to be a BD IPMN. METHODS: Multicenter retrospective study included all patients between 2010 and 2015 with a suspected BD-IPMN who underwent an EUS and MRI-MRCP within 6 months or less of each other. Location, number, size, worrisome features and high risk stigmata were evaluated. Interobserver agreement was evaluated by Kappa score. RESULTS: 173 patients were included (97 UHSC, 76 UCLH-RFH), mean age 65 (range 25-87 years), 66 males. When comparing both modalities there was good agreement for the location of the cyst. The median lesion size was larger by MRI MRCP than EUS although it was not significant. With regards to worrisome features, there was moderate agreement for main PD of 5-9 mm and abrupt change (k = 0.45 and 0.52). Fair agreement was seen for the cyst wall thickening (k = 0.25). No agreement was seen between the presence of non-enhanced mural nodules or lymphadenopathy (k < 0). With regards to high-risk stigmata, poor agreement was obtained for the detection of an enhanced solid component (k = 0.12). No agreement was observed for main PD > 10 mm (k < 0). CONCLUSIONS: In this multicentre study of patients with a BD-IPMN under active surveillance, most disagreement between these modalities was seen in the proximal pancreas. There was generally only minimal concordance between the imaging findings of EUS and MRI-MRCP for the detection of high-risk stigmata and worrisome features. PMID- 29338920 TI - Endoscopic ultrasound guided 22 gauge core needle biopsy for the diagnosis of Autoimmune pancreatitis. AB - BACKGROUND: It is difficult to obtain adequate tissue sample for diagnosing autoimmune pancreatitis (AIP) with the help of traditional EUS-guided FNA. As per ICDC guidelines, EUS-guided FNA is not recommended for diagnosing AIP(1). We herein present a report of 2 cases of using a new flexible 22 gauge (G) core biopsy needle (SharkCore, Medtronic, Sunnydale, Calif) for diagnosing AIP. METHODS: This is a report of 2 cases reviewed retrospectively which had used 22G core biopsy needle for obtaining histo-pathological samples for diagnosing AIP. The cases were reviewed with both endoscopist and a pathologist to determine if the diagnostic criteria were met. RESULTS: Both the cases had adequate tissue sample obtained to make a clear diagnosis of AIP. Pathology showed changes of chronic pancreatitis with atrophy and storiform pattern of fibrosis with a dense lymphoplasmacytic infiltrate in both cases along with identification of IgG4 cells. CONCLUSION: EUS-guided fine needle biopsy (FNB) using the SharkCore needle can be used reliably for diagnosing AIP. More studies need to be performed to validate this further. PMID- 29338921 TI - Faster progression from MCI to probable AD for carriers of a single-nucleotide polymorphism associated with type 2 diabetes. AB - Sporadic Alzheimer's disease (AD), as opposed to its autosomal dominant form, is likely caused by a complex interaction of genetic, environmental, and health lifestyle factors. Twin studies indicate that sporadic AD heritability could be between 58% and 79%, around half of which is explained by the epsilon4 allele of the apolipoprotein E (APOE4). We hypothesized that genes associated with known risk factors for AD, namely hypertension, hypercholesterolemia, obesity, diabetes, and cardiovascular disease, would contribute significantly to the remaining heritability. We analyzed 22 AD-associated single-nucleotide polymorphisms (SNPs), associated with these risk factors, that were included in the sequencing data of the Alzheimer's Disease Neuroimaging Initiative 1 data set, which included 355 participants with mild cognitive impairment (MCI). We built survival models with the selected SNPs to predict progression of MCI to probable AD over the 10-year follow-up of the study. The rs391300 SNP, located on the serine racemase (SRR) gene and linked to increased susceptibility to type 2 diabetes, was associated with progression from MCI to probable AD. PMID- 29338922 TI - Alcohol consumption, masculinity, and alcohol-related violence and anti-social behaviour in sportspeople. AB - OBJECTIVES: There is no research examining alcohol-related aggression and anti social behaviour in UK or European sportspeople (athletes), and no research has examined relationships between masculinity, alcohol consumption, and alcohol related aggression and antisocial behaviour in sportspeople (athletes). This study addresses this gap. DESIGN: Cross-sectional. METHODS: A sample (N=2048; women=892, 44%) of in season sportspeople enrolled at UK universities (response 83%), completed measures of masculinity, alcohol consumption, within-sport (on field) violence, and having been the perpetrator and/or victim of alcohol-related violent/aggressive and antisocial behaviour (e.g., hit/assaulted, vandalism, sexual assault). Logistic regressions examined predictors of alcohol-related violence/aggression and anti-social behaviours. RESULTS: Significant bivariate relationships between masculinity, within-sport violence, alcohol consumption, and alcohol-related aggression and anti-social behaviour were found for both men and women (p's<.001). Logistic regression adjusting for all variables showed that higher levels of masculinity and alcohol consumption in men and women were related to an increased odds of having conducted an aggressive, violent and/or anti-social act in the past 12 months when intoxicated. Odds ratios were largest for relationships between masculinity, alcohol consumption, within-sport violence, and interpersonal violence/aggression (p's<.001). A similar pattern of results was found for having been the victim of aggression and anti-social behaviour. CONCLUSIONS: Alcohol-related aggression and anti-social behaviour appear to be problematic in UK university sportspeople, and is related to masculinity and excessive drinking. Interventions that reduce excessive alcohol consumption, masculine norms and associated within-sport violence, could be effective in reducing alcohol-related aggression and antisocial behaviour in UK sportspeople. PMID- 29338924 TI - Dynamic Epigenetic Changes during Plant Regeneration. AB - Plants have the remarkable ability to drive cellular dedifferentiation and regeneration. Changes in epigenetic landscapes accompany the cell fate transition. Notably, modifications of chromatin structure occur primarily during callus formation via an in vitro tissue culture process and, thus, pluripotent callus cells have unique epigenetic signatures. Here, we highlight the latest progress in epigenetic regulation of callus formation in plants, which addresses fundamental questions related to cell fate changes and pluripotency establishment. Global and local modifications of chromatin structure underlie callus formation, and the combination and sequence of epigenetic modifications further shape intricate cell fate changes. This review illustrates how a series of chromatin marks change dynamically during callus formation and their biological relevance in plant regeneration. PMID- 29338923 TI - Minimally invasive hysterectomy surgery rates for endometrial cancer performed at National Comprehensive Cancer Network (NCCN) Centers. AB - OBJECTIVES: Minimally invasive surgery (MIS) is a quality measure for endometrial cancer (EC) established by the Society of Gynecologic Oncology and the American College of Surgeons. Our study objective was to assess the proportion of EC cases performed by MIS at National Comprehensive Cancer Network (NCCN) centers and evaluate perioperative outcomes. METHODS: A retrospective cohort study of women who underwent surgical treatment for EC from 2013 to 2014 was conducted at four NCCN centers. Multivariable mixed logistic regression models analyzed factors associated with failure to perform MIS and perioperative complications. RESULTS: In total 1621 patients were evaluated; 86.5% underwent MIS (robotic-assisted 72.5%, laparoscopic 20.9%, vaginal 6.6%). On multivariable analysis, factors associated with failure to undergo MIS were uterine size >12cm (Odds Ratio [OR]: 0.17, 95% CI 0.03-0.9), stage III (OR: 0.16, 95% CI 0.05-0.49) and IV disease (OR: 0.07, 95% CI 0.02-0.22). For stage I/II disease, complications occurred in 5.1% of MIS and 21.7% of laparotomy cases (p<0.01). Laparotomy was associated with increases in any complication (OR: 6.0, 95% CI 3.3-10.8), gastrointestinal (OR: 7.2, 95% CI 2.6-19.5), wound (OR: 3.7, 95% CI 1.5-9.2), respiratory (OR 37.5, 95% CI 3.9-358.0), VTE (OR 10.5, 95% CI 1.3-82.8) and 30-day readmission (OR: 2.6, 95% CI 1.4-4.9) compared to MIS. CONCLUSIONS: At NCCN-designated centers, the MIS hysterectomy rate in EC is higher than the published national average, with low perioperative complications. Previously identified disparities of age, race, and BMI were not observed. A proposed MIS hysterectomy benchmark of >80% in EC care is feasible when performed at high volume centers. PMID- 29338925 TI - Rituximab therapy in rheumatoid arthritis and primary biliary cholangitis. PMID- 29338926 TI - Can you tell the difference: Round vs anatomical implants - A real-time global ballot. PMID- 29338927 TI - Brain injury due to head banging in Tourette. PMID- 29338928 TI - Immunoproteomic identification of antigenic candidate Campylobacter jejuni and human peripheral nerve proteins involved in Guillain-Barre syndrome. AB - Immunoproteomics is become a potent methodology used for identifying immunoreactive proteins. In this study, an immunoproteomic approach based on 2 dimensional gel electrophoresis (2D-PAGE) and immunoblotting combined with high resolution mass spectrometry (MS) was used to identify immunoreactive proteins that might be involved in mechanisms of Guillain-Barre syndrome (GBS) development, regardless of their potential reciprocal molecular mimicry. Proteins isolated from C. jejuni and human peripheral nerve tissue (HPN) were separated with 2D SDS-PAGE and subjected to western blotting using serum samples from GBS patients. The peptides generated after proteolysis of the immunoreactive proteins were submitted to nanoflow-high performance liquid chromatography-nano electrospray ionization coupled to high resolution mass spectrometry (nHPLC-nESI MS and MS/MS) followed by SEQUESTdata analysis for proteins identification. In C. jejuni, immunoreactivity was found for GroEL and DnaK, structural proteins (MOMP), key enzymatic proteins necessary for the microbial proliferation (adenylate kinase, enolase, inorganic pyrophosphatase and aspartate ammonia lyase), and antioxidant enzymes (alkyl hydroperoxide reductase-AhpC and DNA protection during starvation protein - DNA protection factor against Fe2+ mediated oxidative stress). HPN immunoreactive proteins identified were heat shock proteins (HSP), intermediate filaments (vimentin and desmin), and other proteins and enzymes such as troponin/tropomyosin complex and ATP synthase subunit beta and the keratan sulfate proteoglycan lumican. The targeting of vimentin and desmin, suggested that the neuronal autoimmune damage is specifically directed to intermediate neuronal (vimentin) and neuromuscular IF, probably localized nearby cell surface, affording increased accessibility to autoantibodies. These findings suggest that the post-infectious development of GBS may be also associated to additional concomitant immune factors that lead to nerve damage generated by auto-immune trigger(s) different from molecular mimicry. PMID- 29338929 TI - Differential anxiety-like behavior, HPA responsiveness, and host-resistance in mice with different circling preference. AB - Relationships between behavioral sidedness and immune responses in previous studies have differed depending on behavior tests and severity of biological stress in mice. It was necessary to elucidate the psychophysiological mediators that connect behavioral sidedness and immune responses. This study investigated interrelationships among anxiety-like behavior, the HPA axis responsiveness, and host-resistance to bacterial infection. Mice that preferred clockwise circling had lower locomotor activities, higher anxiety-like behavior, and faster activation of the HPA axis than mice that preferred counterclockwise circling. A fast activation of the HPA axis was associated with a higher host-resistance to low dose bacterial infection. PMID- 29338930 TI - Neurologic disorders associated with anti-glutamic acid decarboxylase antibodies: A comparison of anti-GAD antibody titers and time-dependent changes between neurologic disease and type I diabetes mellitus. AB - To determine clinical features of neurologic disorders associated with anti glutamic acid decarboxylase antibodies (anti-GAD-Ab), we examined titers and time dependent changes of anti-GAD-Ab. Six patients, stiff person syndrome (2), cerebellar ataxia (1), limbic encephalitis (1), epilepsy (1), brainstem encephalitis (1), were compared with 87 type I diabetes mellitus (T1DM) patients without neurologic disorders. Anti-GAD-Ab titers and index were higher in neurologic disorders than in T1DM, suggesting intrathecal antibody synthesis. Anti-GAD-Ab titers in T1DM decreased over time, whereas they remained high in neurologic disorders. Immunotherapy improved neurological disorders and anti-GAD Ab titers and index provide clinically meaningful information about their diagnostic accuracy. PMID- 29338932 TI - Functional characteristics of a renal H+/lipophilic cation antiport system in porcine LLC-PK1 cells and rats. AB - We have recently found an H+/quinidine (a lipophilic cation, QND) antiport system in Madin-Darby canine kidney (MDCK) cells. The primary aim of the present study was to evaluate whether the H+/lipophilic cation antiport system is expressed in porcine LLC-PK1 cells. That is, we investigated uptake and/or efflux of QND and another cation, bisoprolol, in LLC-PK1 cells. In addition, we studied the renal clearance of bisoprolol in rats. Uptake of QND into LLC-PK1 cells was decreased by acidification of the extracellular pH or alkalization of the intracellular pH. Cellular uptake of QND from the apical side was much greater than from the basolateral side. In addition, apical efflux of QND from LLC-PK1 cells was increased by acidification of the extracellular pH. Furthermore, lipophilic cationic drugs significantly reduced uptake of bisoprolol in LLC-PK1 cells. Renal clearance of bisoprolol in rats was approximately 7-fold higher than that of creatinine, and was markedly decreased by alkalization of the urine pH. The present study suggests that the H+/lipophilic cation antiport system is expressed in the apical membrane of LLC-PK1 cells. Moreover, the H+/lipophilic cation antiport system may be responsible for renal tubular secretion of bisoprolol in rats. PMID- 29338931 TI - In vitro activity of eravacycline against 2213 Gram-negative and 2424 Gram positive bacterial pathogens isolated in Canadian hospital laboratories: CANWARD surveillance study 2014-2015. AB - Gram-negative (n=2213) and Gram-positive (n=2424) pathogens isolated from patients in 13 Canadian hospitals in 2014 and 2015 were tested for in vitro susceptibility to eravacycline and comparators using the Clinical and Laboratory Standards Institute broth microdilution method. The concentration of eravacycline inhibiting 90% of isolates (MIC90) ranged from 0.5 to 2MUg/mL for 9 species of Enterobacteriaceae tested (n=2067). Eravacycline activity was largely unaffected by extended-spectrum beta-lactamase phenotypes in Escherichia coli (n=141) and Klebsiella pneumoniae (n=21). Eravacycline was active against Acinetobacter baumannii (n=28; MIC90, 0.5MUg/mL) and Stenotrophomonas maltophilia (n=118; MIC90, 4MUg/mL). Eravacycline MIC90 for staphylococci (n=1653), enterococci (n=289), and streptococci (n=482) ranged from 0.12 to 0.25, 0.06 to 0.12, and 0.015 to 0.06MUg/mL, respectively. Eravacycline's potency was equivalent to or 2- to 4-fold greater than tigecycline against Enterobacteriaceae and Gram-positive cocci tested. Eravacycline demonstrates promising activity against recent clinical Gram-negative and Gram-positive bacteria, including multidrug-resistant pathogens. PMID- 29338933 TI - Physiological based pharmacokinetic modeling to estimate in vivo Ki of ketoconazole on renal P-gp using human drug-drug interaction study result of fesoterodine and ketoconazole. AB - This study was conducted to estimate in vivo inhibition constant (Ki) of ketoconazole on renal P-glycoprotein (P-gp) using human drug-drug interaction (DDI) study result of fesoterodine and ketoconazole. Fesoterodine is a prodrug which is extensively hydrolyzed by non-specific esterases to the active metabolite 5-hydroxymethyl tolterodine (5-HMT). 5-HMT is then further metabolized via Cytochrome P450 (CYP) 2D6 and CYP3A4. It is reported that 5-HMT is a substrate of P-gp whereas fesoterodine is not. Renal clearance of 5-HMT is approximately two-times greater than renal glomerular filtration rate. This suggests the possibility that renal clearance of 5-HMT involves secretion by P gp. Utilizing the available pharmacokinetic characteristics of fesoterodine and 5 HMT, we estimated in vivo Ki of ketoconazole on P-gp at kidney based on DDI study data using physiologically-based pharmacokinetic approach. The estimated in vivo Ki of ketoconazole for hepatic CYP3A4 (6.64 ng/mL) was consistent with the reported values. The in vivo Ki of ketoconazole for renal P-gp was successfully estimated as 2.27 ng/mL, which was notably lower than reported in vitro 50% inhibitory concentration (IC50) values ranged 223-2440 ng/mL due to different condition between in vitro and in vivo. PMID- 29338934 TI - Systematic review of the safety and effectiveness of peripheral neurostimulation of the sphenopalatine ganglion for the treatment of refractory chronic cluster headache. AB - INTRODUCTION: This study aimed to assess the safety and effectiveness of peripheral neurostimulation of the sphenopalatine ganglion (SPG) in the treatment of refractory chronic cluster headache. DEVELOPMENT: Various medical databases were used to perform a systematic review of the scientific literature. The search for articles continued until 31 October 2016, and included clinical trials, systematic reviews and/or meta-analyses, health technology assessment reports, and clinical practice guidelines that included measurements of efficiency/effectiveness or adverse effects associated with the treatment. The review excluded cohort studies, case-control studies, case series, literature reviews, letters to the editor, opinion pieces, editorials, and studies that had been duplicated or outdated by later publications from the same institution. Regarding effectiveness, we found that SPG stimulation had positive results for pain relief, attack frequency, medication use, and patients' quality of life. In the results regarding safety, we found a significant number of adverse events in the first 30 days following the intervention. Removal of the device was necessary in some patients. Little follow-up data, and no long-term data, is available. CONCLUSIONS: These results are promising, despite the limited evidence available. We consider it essential for research to continue into the safety and efficacy of SPG stimulation for patients with refractory chronic cluster headache. In cases where this intervention may be indicated, treatment should be closely monitored. PMID- 29338935 TI - Compassionate use of human recombinant insulin-like growth factor-1 therapy in Friedreich's ataxia. PMID- 29338936 TI - Continuous intestinal infusion of levodopa-carbidopa in patients with advanced Parkinson's disease in Spain: Subanalysis by autonomous community. AB - OBJECTIVES: To compare the characteristics of patients undergoing treatment with continuous intestinal infusion of levodopa-carbidopa (CIILC) for advanced Parkinson's disease and the data on the effectiveness and safety of CIILC in the different autonomous communities (AC) of Spain. METHODS: A retrospective, longitudinal, observational study was carried out into 177 patients from 11 CAs who underwent CIILC between January 2006 and December 2011. We analysed data on patients' clinical and demographic characteristics, variables related to effectiveness (changes in off time/on time with or without disabling dyskinesia; changes in Hoehn and Yahr scale and Unified Parkinson's Disease Rating Scale scores; non-motor symptoms; and Clinical Global Impression scale scores) and safety (adverse events), and the rate of CIILC discontinuation. RESULTS: Significant differences were observed between CAs for several baseline variables: duration of disease progression prior to CIILC onset, off time (34.9-59.7%) and on time (2.6-48.0%; with or without disabling dyskinesia), Hoehn and Yahr score during on time, Unified Parkinson's Disease Rating Scale-III score during both on and off time, presence of>= 4 motor symptoms, and CIILC dose. Significant differences were observed during follow-up (> 24 months in 9 of the 11 CAs studied) for the percentage of off time and on time without disabling dyskinesia, adverse events frequency, and Clinical Global Impression scores. The rate of CIILC discontinuation was between 20-40% in 9 CAs (78 and 80% in remaining 2 CAs). CONCLUSIONS: This study reveals a marked variability between CAs in terms of patient selection and CIILC safety and effectiveness. These results may have been influenced by patients' baseline characteristics, the availability of multidisciplinary teams, and clinical experience. PMID- 29338937 TI - Neuroimaging in hypoglycaemic encephalopathy diagnosis and prognosis: A case report. PMID- 29338938 TI - Distinct MET Protein Localization Associated With MET Exon 14 Mutation Types in Patients With Non-small-cell Lung Cancer. AB - BACKGROUND: The MET gene has been recognized as a potential important therapeutic target in non-small-cell lung cancer (NSCLC). We sought to investigate the MET exon 14 mutations in a cohort of Chinese patients with NSCLC. METHODS: We tested 461 NSCLCs for MET exon 14 mutations by sequencing whole exon 14 and its flanking introns. The protein expression was determined by immunohistochemical analysis. RESULTS: In this study, we identified MET exon 14 mutations in 9 (2.0%) of 461 NSCLCs. Of these 9 mutations, 7 (77.8%) were located in the splice sites of MET exon 14, with MET overexpression in 6. One point mutation c.3010C>T (p.Arg1004Ter) was nonsense mutation with no MET expression. One insertion mutation was within exon 14 of MET with MET overexpression. MET protein localization in tumor cells with MET exon 14 mutations was different between mutation types. Three point mutations that disrupted the splice donor site of intron 14 were membranous staining, whereas the other mutations were cytoplasmic staining. Patients with MET exon 14 splice site mutations were significantly older. The incidence of MET exon 14 mutations in sarcomatoid carcinoma was significantly higher than in other histologic types (P = .034). CONCLUSION: Distinct MET protein localization is associated with MET exon 14 mutation types in patients with NSCLC. Different MET exon 14 mutation types were identified in a subset of Chinese patients with NSCLC who could possibly benefit from MET targeted therapy. PMID- 29338939 TI - Immune Cytokines and Their Receptors in Inflammatory Pain. AB - There is burgeoning interest in the interaction between the immune and nervous systems. Pain is mediated by primary sensory neurons (nociceptors) that can respond to a variety of thermal, mechanical and chemical signals. Cytokines are now recognized as important mediators of inflammatory pain. They can induce nociceptor sensitization indirectly via mediators, wherein neurons become primed and thus become more responsive to stimulation; alternatively, there is also evidence that cytokines can directly activate neurons via their specific receptors present on the neuronal cells. We review here the evidence for and against these respective mechanisms, focusing on arthritis and inflammatory skin models. A number of striking inconsistencies amongst the conclusions made in the literature are highlighted and discussed. PMID- 29338940 TI - Chimney Stent Technique in a Valve-in-valve Procedure. PMID- 29338941 TI - Epiglottoplasty technique in endoscopic partial laryngectomy. AB - The main advantage of endoscopic laser surgery for laryngeal cancer is to allow tumour resection, while limiting functional sequelae, thereby improving the postoperative course. In this type of surgery, the epiglottis is often partially resected, leaving a raw zone without any reconstruction. The surgical technique described here involves endoscopic reconstruction of the epiglottis after partial resection. The sectioned edge of the epiglottis is sutured to the base of the tongue to create a neoepiglottis and to reconstruct the vallecula, thus resembling preoperative anatomy, allowing improvement of postoperative swallowing. PMID- 29338942 TI - International consensus (ICON) on treatment of Meniere's disease. AB - OBJECTIVE: To present the international consensus for recommendations for Meniere's disease (MD) treatment. METHODS: Based on a literature review and report of 4 experts from 4 continents, the recommendations have been presented during the 21st IFOS congress in Paris, in June 2017 and are presented in this work. RESULTS: The recommendation is to change the lifestyle, to use the vestibular rehabilitation in the intercritic period and to propose psychotherapy. As a conservative medical treatment of first line, the authors recommend to use diuretics and Betahistine or local pressure therapy. When medical treatment fails, the recommendation is to use a second line treatment, which consists in the intratympanic injection of steroids. Then as a third line treatment, depending on the hearing function, could be either the endolymphatic sac surgery (when hearing is worth being preserved) or the intratympanic injection of gentamicin (with higher risks of hearing loss). The very last option is the destructive surgical treatment labyrinthectomy, associated or not to cochlear implantation or vestibular nerve section (when hearing is worth being preserved), which is the most frequent option. PMID- 29338943 TI - Physiology of the paransal sinus ostia: Endoscopic findings. PMID- 29338944 TI - Histological and morphofunctional parameters of the hypothalamic-pituitary adrenal system are sensitive to daidzein treatment in the adult rat. AB - The isoflavone, daidzein is a biologically active, plant-derived compound that interacts with estrogen receptors. Data from previous studies have suggested that daidzein exerts beneficial effects in many diseases; however, as an endocrine disrupter, it may also alter the functioning of the endocrine system. Data regarding the effect of daidzein on the morphofunctional and histological parameters of the hypothalamic-pituitary-adrenal (HPA) system is still lacking. Therefore, using the newCAST stereological software, we investigated the effects of chronic (21 days) daidzein treatment on corticotropin-releasing hormone (CRH) neurons within the hypothalamus and corticotropes (ACTH cells) in the pituitary, while image analysis was employed to-examine the intensity of fluorescence of CRH in the median eminence (ME) and adrenocorticotropin hormone in the pituitary in adult orchidectomized (Ovx) rats. Circulating ACTH and corticosterone levels were also analyzed. This study showed that daidzein treatment decreased the volume density of CRH neurons within the paraventricular nucleus as well as CRH immunofluorescence in the ME. The total number of ACTH cells was decreased, while ACTH cell volume and the intensity of ACTH fluorescence were increased following daidzein treatment. Both ACTH and corticosterone blood levels were increased after daidzein administration. The results of performed experiments clearly demonstrate that volume density of CRH neurons; total number and volume of ACTH cells, as well as stress hormones levels are vulnerable to the effects of daidzein. PMID- 29338945 TI - Editorial Comment. PMID- 29338946 TI - Reply. PMID- 29338947 TI - Reply. PMID- 29338948 TI - Editorial Comment. PMID- 29338949 TI - Relation between cadmium exposure and gestational diabetes mellitus. AB - BACKGROUND: Cadmium (Cd) has been associated with type 2 diabetes in general population. However, the role of Cd in the occurrence of Gestational diabetes mellitus (GDM) remains unclear. OBJECTIVES: Our study was aimed at investigating whether Cd exposure during pregnancy was associated with increased risk of GDM. METHODS: Cd concentrations were measured in urine samples from 6837 pregnant women in Wuhan, China, from 2012 to 2014. A "modified Poisson" model with a robust error variance was used to examine the association of GDM with continuous natural logarithm (ln) transformed urinary Cd or quartiles of urinary Cd levels. RESULTS: For about 3-fold increase in Cd concentrations, there were 16% [relative risk (RR) =1.16; 95% confidence interval (CI): 1.03, 1.33] increase in risk of GDM. Compared with women in the lowest quartile of urinary Cd levels, women in the highest quartile had 1.30 higher risk of GDM [95% CI: 1.05, 1.61; p-trend <0.05]. Further analyses indicated overweight/obese women with higher urinary Cd levels had significantly higher risk of GDM, compared with women in the reference category of lowest quartile of Cd and normal pre-pregnancy body mass index [RR =2.71; 95% CI: 1.81, 4.07]. CONCLUSIONS: Our study presented a significantly positive association between urinary Cd levels and risk of GDM, supporting the hypothesis that environmental exposure to Cd may contribute to the development of GDM. PMID- 29338950 TI - Sugar-Sweetened Beverage and Water Intake in Relation to Diet Quality in U.S. Children. AB - INTRODUCTION: Sugar-sweetened beverages (SSBs) are a major contributor to children's added sugar consumption. This study examines whether children's SSB and water intakes are associated with diet quality and total energy intake. METHODS: Using data on children aged 2-18 years from the 2009-2014 National Health and Nutrition Examination Survey, linear regression models were used to analyze SSB and water intake in relation to Healthy Eating Index 2010 (HEI-2010) scores and total energy intake. Generalized linear models were used to analyze SSB and water intake in relation to the HEI-2010 scores. Analyses were conducted including and excluding caloric contributions from SSBs and were conducted in 2016-2017. RESULTS: SSB intake was inversely associated with the HEI-2010 total scores (9.5-point lower score comparing more than two servings/day with zero servings/day, p-trend<0.0001) and positively associated with total energy intake (394 kcal higher comparing more than two servings/day with zero servings/day, p trend<0.0001). The associations between SSB and HEI-2010 total scores were similar when SSBs were excluded from HEI-2010 calculations. Water intake was positively associated with HEI-2010 total scores, but not associated with total energy intake. SSB intake was inversely associated with several HEI-2010 component scores, notably vegetables, total fruit, whole fruit, greens and beans, whole grains, dairy, seafood and plant proteins, and empty calories. Water intake was positively associated with most of the same HEI-2010 component scores. CONCLUSIONS: Children who consume SSBs have poorer diet quality and higher total energy intake than children who do not consume SSBs. Interventions for obesity and chronic disease should focus on replacing SSBs with water and improving other aspects of diet quality that correlate with SSB consumption. PMID- 29338951 TI - Small Incentives Improve Weight Loss in Women From Disadvantaged Backgrounds. AB - INTRODUCTION: Women from lower-income backgrounds have the highest rates of obesity. Thus, effective programs for this high-risk population are urgently needed. Evidence suggests that adding financial incentives to treatment helps to engage and promote health behavior change in lower-income populations; however, this has never been tested in women for obesity treatment. The purpose of this study was to examine whether adding small financial incentives to Internet weight loss treatment yields better weight loss outcomes in women from lower-income backgrounds compared with the same treatment without incentives. Weight losses in lower-versus higher-income women were also compared. METHODS: Data were pooled from two randomized trials in which women (N=264) received either Internet behavioral weight loss treatment (IBWL) or IBWL plus incentives (IBWL+$). Weight was objectively assessed. Data were collected and analyzed from 2011 to 2017. RESULTS: Women from lower-income backgrounds had significantly better weight loss outcomes in IBWL+$ compared with IBWL alone (6.4 [SD=4.9%] vs 2.6 [SD=4.6%], p=0.01). Moreover, a greater percentage achieved a >=5% weight loss in IBWL+$ vs IBWL alone (52.6% vs 38.1%, p=0.01). Interestingly, the comparison between lower income versus higher-income groups showed that, in IBWL alone, women with lower income achieved significantly poorer weight losses (3.4 [SD=4.2%] vs 4.9 [SD=4.0%], p=0.03). By contrast, in IBWL+$, weight loss outcomes did not differ by income status (5.0 [SD=5.6%] vs 5.3 [SD=3.8%], p=0.80), and a similar percentage of lower- versus higher-income women achieved a >=5% weight loss (52.6% vs 53.8%, p=0.93). CONCLUSIONS: An Internet behavioral weight loss program plus financial incentives may be an effective strategy to promote excellent weight losses in women with lower income, thereby enhancing equity in treatment outcomes in a vulnerable, high-risk population. These data also provide important evidence to support federally funded incentive initiatives for lower-income, underserved populations. PMID- 29338952 TI - Behavioral Risk Factors and Regional Variation in Cardiovascular Health Care and Death. AB - INTRODUCTION: Reducing the burden of death from cardiovascular disease includes risk factor reduction and medical interventions. METHODS: This was an observational analysis at the hospital service area (HSA) level, to examine regional variation and relationships between behavioral risks, health services utilization, and cardiovascular disease mortality (the outcome of interest). HSA level prevalence of cardiovascular disease behavioral risks (smoking, poor diet, physical inactivity) were calculated from the Behavioral Risk Factor Surveillance System; HSA-level rates of stress tests, diagnostic cardiac catheterization, and revascularization from a statewide multi-payer claims data set from Maine in 2013 (with 606,260 patients aged >=35 years), and deaths from state death certificate data. Analyses were done in 2016. RESULTS: There were marked differences across 32 Maine HSAs in behavioral risks: smoking (12.4%-28.6%); poor diet (43.6% 73.0%); and physical inactivity (16.4%-37.9%). After adjustment for behavioral risks, rates of utilization varied by HSA: stress tests (28.2-62.4 per 1,000 person-years, coefficient of variation=17.5); diagnostic cardiac catheterization (10.0-19.8 per 1,000 person-years, coefficient of variation=17.3); and revascularization (4.6-6.2 per 1,000 person-years; coefficient of variation=9.1). Strong HSA-level associations between behavioral risk factors and cardiovascular disease mortality were observed: smoking (R2=0.52); poor diet (R2=0.38); and physical inactivity (R2=0.35), and no association between revascularization and cardiovascular disease mortality after adjustment for behavioral risk factors (R2=0.02). HSA-level behavioral risk factors were also strongly associated with all-cause mortality: smoking (R2=0.57); poor diet (R2=0.49); and physical inactivity (R2=0.46). CONCLUSIONS: There is substantial regional variation in behavioral risks and cardiac utilization. Behavioral risk factors are associated with cardiovascular disease mortality regionally, whereas revascularization is not. Efforts to reduce cardiovascular disease mortality in populations should focus on prevention efforts targeting modifiable risk factors. PMID- 29338953 TI - Violent Crime and Park Use in Low-Income Urban Neighborhoods. AB - INTRODUCTION: Crime and safety are often cited as potential hurdles to park use and park-based physical activity. Using comprehensive data sources including both objective and subjective measurements at the park level and the individual level, this study aimed to assess the association between crime rates and use of local parks in low-income urban neighborhoods. METHODS: The authors observed 48 parks and conducted local resident surveys in low-income neighborhoods in Los Angeles during a 2-year study period (2013-2015). Crime data were geocoded within a 1 mile radius of parks' addresses and longitudinal models were fitted to estimate the association between crime rates and park use outcomes in 2017. RESULTS: One gun-related violent crime per 10,000 people during the 6-month period prior to data collection was associated with an average of 13.5%-15.8% reduction in observed park use and park-based moderate to vigorous physical activity (p<0.05) in the 6-month observation period. The relationship was significant in seniors (33%-40% reduction) and adults (13%-18%), but insignificant for teenagers (2%-4%) and children (10%-12%). Homicide rates were also significantly related to lower self-reported park use (p<0.05). CONCLUSIONS: Gun-related violent crimes have relatively long-term negative associations with population health by reducing utilization of outdoor park space. There can be additional population health benefits from controlling and reducing gun-related violent crimes beyond immediate impacts on public safety and mortality. PMID- 29338954 TI - Perceived and Observed Food Environments, Eating Behaviors, and BMI. AB - INTRODUCTION: This study examines relationships between perceived and observed nutrition environments, diet, and BMI, in order to examine the criterion validity of the Nutrition Environment Measures Survey-Perceived (NEMS-P). METHODS: In a cross-sectional study, perceived nutrition environments were assessed (NEMS-P) among 221 adults from four neighborhoods in the Philadelphia area in 2010 and 2011. A total of 158 food store environments were observed using the NEMS-Stores. Data analyses were conducted in 2016. Bivariate Spearman rank correlations were used to examine relationships between perceived and observed availability, quality, and price of fruits and vegetables in respondents' neighborhoods. Linear regression models were used to examine relationships between perceived neighborhood and home food environments and daily fruit and vegetable consumption and BMI. RESULTS: A significant, positive relationship was found between perceived and observed availability of fruits and vegetables in the neighborhood (r = 0.36, p<0.001). A similar relationship was seen between perceived and observed quality of fruits and vegetables (r = 0.34, p<0.001). Perceived availability and quality of fruits and vegetables in the neighborhood, and availability and accessibility of fruits and vegetables in the home, were significantly related to daily fruit and vegetable consumption. Perceived price of food in the neighborhood was significantly associated with BMI. CONCLUSIONS: Responses to a self-reported survey to assess perceived food environments related to fruits and vegetables were significantly associated with observed nutrition environments, fruit and vegetable consumption, and BMI. The perceived prices of fruits and vegetables were modestly associated with BMI and warrant further testing in prospective studies. When observations of food environments are not feasible, residents' survey responses are an acceptable indicator, with reasonable criterion validity. PMID- 29338955 TI - Declining Health-Related Quality of Life in the U.S. AB - INTRODUCTION: Despite recent declining mortality of the U.S. population from most leading causes, uncertainty exists over trends in health-related quality of life. METHODS: The 2001-2002 and 2012-2013 National Epidemiologic Surveys on Alcohol and Related Conditions U.S. representative household surveys were analyzed for trends in health-related quality of life (n=79,402). Health-related quality of life was measured with the Short Form-6 Dimension scale derived from the Short Form-12. Changes in mean Short Form-6 Dimension ratings were attributed to changes in economic, social, substance abuse, mental, and medical risk factors. RESULTS: Mean Short Form-6 Dimension ratings decreased from 0.820 (2001-2002) to 0.790 (2012-2013; p<0.0001). In regressions adjusted for age, sex, race/ethnicity, and education, variable proportions of this decline were attributable to medical (21.9%; obesity, cardiac disease, hypertension, arthritis, medical injury), economic (15.6%; financial crisis, job loss), substance use (15.3%; substance use disorder or marijuana use), mental health (13.1%; depression and anxiety disorders), and social (11.2%; partner, neighbor, or coworker problems) risks. In corresponding adjusted models, a larger percentage of the decline in Short Form-6 Dimension ratings of older adults (aged >=55 years) was attributable to medical (35.3%) than substance use (7.4%) risk factors, whereas the reverse occurred for younger adults (aged 18-24 years; 5.7% and 19.7%) and adults aged 25-44 years (12.7% and 16.3%). CONCLUSIONS: Between 2001-2002 and 2012-2013, there was a significant decline in average quality of life ratings of U.S. adults. The decline was partially attributed to increases in several modifiable risk factors, with medical disorders having a larger role than substance use disorders for older adults but the reverse for younger and middle aged adults. PMID- 29338956 TI - Gender Identity Disparities in Cancer Screening Behaviors. AB - INTRODUCTION: Transgender (trans) and gender-nonconforming adults have reported reduced access to health care because of discrimination and lack of knowledgeable care. This study aimed to contribute to the nascent cancer prevention literature among trans and gender-nonconforming individuals by ascertaining rates of breast, cervical, prostate, and colorectal cancer screening behaviors by gender identity. METHODS: Publicly available de-identified data from the 2014-2016 Behavioral Risk Factor Surveillance System surveys were utilized to evaluate rates of cancer screenings by gender identity, while controlling for healthcare access, sociodemographics, and survey year. Analyses were conducted in 2017. RESULTS: Weighted chi-square tests identified significant differences in the proportion of cancer screening behaviors by gender identity among lifetime colorectal cancer screenings, Pap tests, prostate-specific antigen tests, discussing prostate specific antigen test advantages/disadvantages with their healthcare provider, and up-to-date colorectal cancer screenings and Pap tests (p<0.036). Weighted logistic regressions found that although some differences based on gender identity were fully explained by covariates, trans women had reduced odds of having up-to-date colorectal cancer screenings compared to cisgender (cis) men (AOR=0.20) and cis women (AOR=0.24), whereas trans men were more likely to ever receive a sigmoidoscopy/colonoscopy as compared to cis men (AOR=2.76) and cis women (AOR=2.65). Trans women were more likely than cis men to have up-to-date prostate-specific antigen tests (AOR=3.19). Finally, trans men and gender nonconforming individuals had reduced odds of lifetime Pap tests versus cis women (AOR=0.14 and 0.08, respectively), and gender-nonconforming individuals had lower odds of discussing prostate-specific antigen tests than cis men (AOR=0.09; all p<0.05). CONCLUSIONS: The findings indicate that gender identity disparities in cancer screenings persist beyond known sociodemographic and healthcare factors. It is critical that gender identity questions are included in cancer and other health-related surveillance systems to create knowledge to better inform healthcare practitioners and policymakers of appropriate screenings for trans and gender-nonconforming individuals. PMID- 29338957 TI - Commuting and Sleep: Results From the Hispanic Community Health Study/Study of Latinos Sueno Ancillary Study. AB - INTRODUCTION: Commute time is associated with reduced sleep time, but previous studies have relied on self-reported sleep assessment. The present study investigated the relationships between commute time for employment and objective sleep patterns among non-shift working U.S. Hispanic/Latino adults. METHODS: From 2010 to 2013, Hispanic/Latino employed, non-shift-working adults (n=760, aged 18 64 years) from the Sueno study, ancillary to the Hispanic Community Health Study/Study of Latinos, reported their total daily commute time to and from work, completed questionnaires on sleep and other health behaviors, and wore wrist actigraphs to record sleep duration, continuity, and variability for 1 week. Survey linear regression models of the actigraphic and self-reported sleep measures regressed on categorized commute time (short: 1-44 minutes; moderate: 45 89 minutes; long: >=90 minutes) were built adjusting for relevant covariates. For associations that suggested a linear relationship, continuous commute time was modeled as the exposure. Moderation effects by age, sex, income, and depressive symptoms also were explored. RESULTS: Commute time was linearly related to sleep duration on work days such that each additional hour of commute time conferred 15 minutes of sleep loss (p=0.01). Compared with short commutes, individuals with moderate commutes had greater sleep duration variability (p=0.04) and lower interdaily stability (p=0.046, a measure of sleep/wake schedule regularity). No significant associations were detected for self-reported sleep measures. CONCLUSIONS: Commute time is significantly associated with actigraphy-measured sleep duration and regularity among Hispanic/Latino adults. Interventions to shorten commute times should be evaluated to help improve sleep habits in this minority population. PMID- 29338958 TI - Recommendations of the Second Panel on Cost Effectiveness in Health and Medicine: A Reference, Not a Rule Book. PMID- 29338959 TI - A new window into psychosis: The rise digital phenotyping, smartphone assessment, and mobile monitoring. AB - This commentary piece discusses recent advances in the use of mobile technologies like smartphone and wearable sensors for schizophrenia research. By framing both the opportunities as well as challenges for the field, this piece aims to frame the both current and future research efforts. PMID- 29338960 TI - Small-airway dysfunction precedes the development of asthma in children with allergic rhinitis. AB - BACKGROUND: Epidemiological evidence suggests the existence of a direct link between allergic rhinitis (AR) and asthma. Several studies also support the presence of small-airway dysfunction (SAD) in non-asthmatic children with AR. However, it remains unknown whether SAD can predict the progression of AR to asthma. Our objective was to explore the existence of SAD in non-asthmatic children with AR and to assessed its ability to predict the development of asthma. METHODS: Seventy-three 6-year-old children with intermittent moderate severe AR but without asthma symptoms/medication within the last two years, underwent spirometry and measurement of respiratory resistance (Rrs) and reactance (Xrs) before and after bronchodilation (BD) (300mcg salbutamol). Lung function measurements were performed in the absence of nasal symptoms and repeated at AR exacerbation. SAD was defined as >30% decrease in Rrs or >50% increase in Xrs at 6 or 8Hz post-BD. Participants were followed for five years. RESULTS: Twenty-three children (31.5%) developed asthma; this group presented significant post-BD changes in Rrs and Xrs, but only at AR exacerbation. The ability of these changes to predict the development of asthma was exceptional and superior to that of the spirometric parameters. SAD (22 children, 30.1%), emerged as the single most efficient predictor of asthma, independently of other risk factors such as parental asthma, personal history of eczema and type of allergic sensitisation. CONCLUSION: SAD precedes the development of asthma in children with AR. Changes in respiratory impedance at AR exacerbation may assist in identifying those at risk to progress to asthma. PMID- 29338961 TI - Is eosinophilic esophagitis an equivalent of pollen allergic asthma? Analysis of biopsies and therapy guided by component resolved diagnosis. AB - BACKGROUND: Eosinophilic esophagitis (EoE) is characterized by esophageal dysfunction and, histologically, by eosinophilic inflammation. There is not a clear etiologic treatment. Biopsies analysis using plant histology methods may show callose and pollen tubes in the esophageal mucosa. Component-resolved diagnosis (CRD) with microarrays could detect possible allergens involved and indicate an elimination diet and allergen immunotherapy (AIT). METHODS: One hundred and twenty-nine patients with EoE were tested for environmental and food allergens. CRD, histological and botanical analysis were performed. Clinical scores and endoscopic biopsy were performed every six months for three years. Fifty healthy patients, 50 asthmatics due to pollen, and 53 celiac disease patients were included as comparison groups. CRD-directed AIT was administered in 91 EoE patients and elimination diet in 140 patients (87 EoE and all 53 CD patients). RESULTS: CRD detected allergen hypersensitivity in 87.6% of patients with EoE. The predominant allergens were grass group 1 (55%), lipid transfer proteins (LTP) of peach and mugwort, hazelnuts and walnuts. Callose from pollen tubes was found in 65.6% of biopsies. After CRD-guided elimination diet and/or AIT, 101 (78.3%) EoE patients showed significant clinical improvement (p<0.017) and 97 (75.2%) were discharged (negative biopsy, no symptoms, no medication) without relapse. AIT-treated patients had better outcomes (odds ratio 177.3, 95% CI 16.2-1939.0). CONCLUSION: CRD-directed AIT and/or elimination diet was efficient in treating EoE patients and was well tolerated. PMID- 29338962 TI - Knowledge on asthma, food allergies, and anaphylaxis: Assessment of elementary school teachers, parents/caregivers of asthmatic children, and university students in Uruguaiana, in the state of Rio Grande do Sul, Brazil. AB - INTRODUCTION: Allergic diseases have become an increasingly common reality in the last years, extending beyond the family context. OBJECTIVE: Assessing the level of knowledge on asthma, food allergies and anaphylaxis of asthmatic children's parents/caregivers (PC), elementary school teachers (EST) and university students (US) in Uruguaiana, RS, Brazil. METHOD: 577 individuals (PC - N=111; EST - N=177; US - N=299) took part in the study, answering the Newcastle Asthma Knowledge Questionnaire (validated for Portuguese) and another questionnaire on Food Allergy (FA) and anaphylaxis. RESULTS: Although PC have asthmatic children, their asthma knowledge level was average, slightly above that of EST and EU. The lack of knowledge on passive smoking, use of medications and their side effects should be highlighted. US have shown to be better informed about FA and anaphylaxis. However, even though a significant proportion of respondents know the most common symptoms of FA and anaphylaxis, few named subcutaneous adrenaline as the drug of choice for treating anaphylaxis. Although a significant number of respondents know about the possibility of anaphylactic reactions happening at school or in activities outside the school, we were surprised by the absence of conditions in schools to provide emergency care to such students. CONCLUSION: Despite the high prevalence of allergic diseases in childhood, asthmatic children's parents/caregivers, elementary school teachers and university students have inadequate levels of knowledge to monitor these patients. PMID- 29338963 TI - Loss of tolerance for fishes previously tolerated in children with fish food protein induced enterocolitis syndrome. AB - We describe two case reports presenting some novel information on fish FPIES. Fish FPIES to one fish does not always start at the same time to other fish. Additionally, development of tolerance to the index fish do not necessarily imply tolerance to other reactive fish. This reflects on the best management of children with FPIES fish. PMID- 29338964 TI - Validation of the Children's Sleep Habits Questionnaire in a sample of Greek children with allergic rhinitis. AB - BACKGROUND: Obstructive respiratory disorders, such as allergic rhinitis and asthma may impair sleep quality. The aim of this study is to validate the Children's Sleep Habits Questionnaire (CSHQ) for Greek children from 6 to 14 years of age. No validated tool has been developed so far to assess sleep disturbances in Greek school-aged children. METHODS: We examined the reliability and validity of the CSHQ in a sample of children with allergic rhinitis (AR) and a non-clinical population of parents of these children as a proxy measure of children's AR quality of life (QoL) as evaluated by the Pediatric Allergic Rhinitis Quality of Life (PedARQoL) questionnaire. RESULTS: The CSHQ questionnaire Child's Form (CF) had a moderate internal consistency with a Cronbach's alpha 0.671 and Guttman split-half coefficient of 0.563 when correlated with the PedARQoL (CF). There was also a moderate intraclass correlation of ICC=0.505 between the responses to both questionnaires in the two visits. The CSHQ Parent's Form (PF) had a very good internal consistency with a Cronbach's alpha of 0.928 and Guttman split-half coefficient of 0.798. There was a high intraclass correlation of 0.643 between the responses in the two visits. CONCLUSIONS: The Greek version of the CSHQ CF, but particularly the PF has proved to be a very reliable clinical instrument, which can be used in clinical trials for assessing sleep quality in school-aged children with sleep disturbances because of obstructive airway disorders, such as AR. PMID- 29338965 TI - Quality of life and clinical characterization of patients with vernal keratoconjunctivitis in a pediatric population in Colombia. AB - : Vernal keratoconjunctivitis is one of the most serious ocular allergies that have the potential to induce large ocular morbidity and significant visual changes affecting the quality of life of these individuals. METHODOLOGY: This study was conducted in two phases. The first phase consisted of the clinical characterization of 32 patients from the Clinical Allergology center of the I.P.S. Universitaria from July 2014 to February 2015. A retrospective analysis of medical records was performed. In the second phase, the evaluation of quality of life was conducted using the questionnaire KIDSCREEN 27, which was validated in our population and evaluated as recommended by the creators of this instrument. RESULTS: A total of 24 patients (75%) were men, mean age of 12.1 (SD 2.6) years. 100% of the patients had clinical evaluation and were monitored by Allergology and Ophthalmology, 12 patients (37.5%) were found in mild level, 5 patients (15.6%) were moderate and 14 patients (43.8%) were severe level. The most common symptoms were pruritus (75%), photophobia (50%), lacrimation (37.5%), and secretions (28.1%). 65.6% had a family history of atopy and 84.4% had an allergic comorbidity. Aeroallergen skin tests were found positive in 25 patients (78.1%). All patients had initiated ocular treatment by the time the survey of quality of life was conducted; but, they still had low quality of life scores in the 5 domains assessed. When the scores were evaluated by gender, the only statistically significant difference was found in the domain of family life and free time, which was lower for women. CONCLUSION: The vernal keratoconjunctivitis is a disease more prevalent in men. It apparently has an important atopic base in our environment, which due to its severe ocular involvement causes a marked decrease in the quality of life of the children who present it. PMID- 29338966 TI - Family history of venous thromboembolism predicts the diagnosis of acute pulmonary embolism in the emergency department. AB - BACKGROUND: Pulmonary embolism (PE) clinical decision rules do not consider a patient's family history of venous thromboembolism (VTE). We evaluated whether a family history of VTE predicts acute PE in the emergency department (ED). METHODS: Over a 5.5-year study period, we enrolled a prospective convenience sample of patients presenting to an academic emergency department with chest pain and/or shortness of breath. We defined a family history of VTE as a first-degree relative with previous PE or deep vein thrombosis (DVT). We noted outcomes of testing during the patient's ED stay, including the diagnosis of acute PE by either computed tomography (CT) or ventilation/perfusion (VQ) scan. RESULTS: Of the 3024 study patients, 19.4% reported a family history of VTE and 1.9% were diagnosed with an acute PE during the ED visit. Patients with a family history of VTE were more likely to be diagnosed with a PE: 3.2% vs. 1.6% (p = 0.009). 82.3% of patients were Pulmonary Embolism Rule-out Criteria (PERC) positive, and among PERC-positive patients, those with a family history of VTE were more likely to be diagnosed with a PE: 3.6% vs. 1.9% (p = 0.016). Of patients who underwent testing for PE (33.7%), patients with a family history of VTE were more likely to be diagnosed with a PE: 9.4% vs. 4.9% (p = 0.032). CONCLUSION: Patients with a self reported family history of VTE in a first-degree relative are more likely to be diagnosed with an acute PE in the ED, even among those patients considered to have a higher likelihood of PE. PMID- 29338967 TI - Real time optic nerve sheath diameter measurement during lumbar puncture. AB - Measurement of optic nerve sheath diameter (ONSD) using point of care ultrasound has been used to indirectly assess the intracranial pressure (ICP) particularly in conditions where it is raised. Direct pressure measurements using probes reaching the ventricle system correlated with ONSD using ultrasound. Attempts were made to measure the ONSD pre and post lumbar puncture (LP) after draining cerebrospinal fluid (CSF) as well as post ventricular shunt placement. We report ONSD measurement and demonstrate dynamic changes during LP in a patient with known idiopathic intracranial hypertension (IIH). PMID- 29338968 TI - An alternative tool for triaging patients with possible acute coronary symptoms before admission to a chest pain unit. AB - OBJECTIVE: This study aimed to develop a triage tool to more effectively triage possible ACS patients presenting to the emergency department (ED) before admission to a protocol-driven chest pain unit (CPU). METHODS: Seven hundred ninety-three clinical cases, randomly selected from 7962 possible ACS cases, were used to develop and test an ACS triage model using cluster analysis and stepwise logistic regression. RESULTS: The ACS triage model, logit (suspected ACS patient)=-5.283+1.894*chest pain+1.612*age+1.222*male+0.958*proximal radiation pain+0.962*shock+0.519*acute heart failure, with a threshold value set at 2.5, was developed to triage patients. Compared to four existing methods, the chest pain strategy, the Zarich's strategy, the flowchart, and the heart broken index (HBI), the ACS triage model had better performance. CONCLUSION: This study developed an ACS triage model for triaging possible ACS patients. The model could be used as a rapid tool in EDs to reduce the workloads of ED nurses and physicians in relation to admissions to the CPU. PMID- 29338969 TI - Current and Future Challenges of Radiation Oncology in Iran: A Report from the Iranian Society of Clinical Oncology. AB - AIMS: Growth of the cancer incidence rate in Iran has been very high in recent years. Therefore, the Iranian health care system should be prepared for the treatment of a huge number of patients in the foreseeable future. One of the most important treatment options for cancer is radiation. However, there is no comprehensive information on infrastructure for radiation oncology in this country. MATERIALS AND METHODS: In 2015, a questionnaire was designed by the Iranian Society of Clinical Oncology (ISCO) and all radiation oncology centres in the country were visited to determine four important components of radiation oncology services, including facilities, equipment, personnel and patients. RESULTS: In 2015, 94 radiotherapy centres were identified in Iran. Sixty-one centres were fully operational, six centres were commissioning, 26 centres were under construction and one was inactive. Among the fully operational radiotherapy centres, 54 offered three-dimensional conformal radiotherapy and two-dimensional radiotherapy, eight offered brachytherapy, two intensity-modulated radiotherapy, two intraoperative radiotherapy, ostereotactic radiosurgery, two hyperthermia and 59 chemotherapy. Moreover, the survey identified 110 linear accelerators, 25 cobalt-60, one gamma knife, 21 remote brachytherapy afterloaders and six orthovoltage units. Treatment planning equipment included 15 graphy simulators, 19 dedicated computed tomography simulators, 22 multileaf collimator and 12 electronic portal imaging devices. Moreover, in 2015, 243 clinical oncologists participated in the treatment of 42 350 cancer patients in need of radiotherapy, which is about one radiation oncologist for 175 patients. During 2010-2015, number of cobalt-60 reduced 70%, from 25 units to 8 units. CONCLUSIONS: There is a significant gap between Iran's available facilities for radiation therapy and international standards. Moreover, during international economic sanctions against Iran this gap widened. PMID- 29338970 TI - Baicalein and baicalin alleviate acetaminophen-induced liver injury by activating Nrf2 antioxidative pathway: The involvement of ERK1/2 and PKC. AB - Acetaminophen (APAP)-induced hepatotoxicity is the main cause of drug-induced liver injury. This study investigated the protection of baicalin and its aglycone baicalein against APAP-induced hepatotoxicity and its mechanism. Baicalein and baicalin alleviated APAP-induced hepatotoxicity both in vitro and in vivo. Moreover, this baicalin-provided protection was not diminished in hepatocytes or mice treated with beta-glucuronidase inhibitor. Results of liver glutathione (GSH) and reactive oxygen species (ROS) formation demonstrated the alleviation of baicalein and baicalin on APAP-induced liver oxidative stress injury. Baicalein and baicalin induced the activation of nuclear factor erythroid 2-related factor 2 (Nrf2) and increased the expression of its downstream antioxidant genes. Baicalein and baicalin-provided protection was diminished after the application of Nrf2 siRNA in hepatocytes and Nrf2 knock-out mice. Molecular docking results indicate the potential interaction of baicalein and baicalin with kelch-like ECH associated protein-1 (Keap1). Baicalein and baicalin induced the sustained phosphorylation of extracellular regulated protein kinases (ERK)1/2 and protein kinase C (PKC). Moreover, ERK1/2 and PKC inhibitors both abrogated Nrf2 phosphorylation and its subsequent activation, and the protection against APAP induced hepatotoxicity induced by baicalein and baicalin. In summary, baicalein and baicalin alleviate APAP-induced hepatotoxicity by activating Nrf2 via blocking the binding of Nrf2 with Keap1 and inducing Nrf2 phosphorylation. ERK1/2 and PKC are both critical for regulating the phosphorylation of Nrf2 induced by baicalein or baicalin. PMID- 29338971 TI - Atorvastatin impaired glucose metabolism in C2C12 cells partly via inhibiting cholesterol-dependent glucose transporter 4 translocation. AB - Skeletal muscle accounts for approximately 75% of glucose disposal in body and statins impair glucose metabolism. We aimed to investigate the effect of atorvastatin on glucose metabolism in C2C12 cells. Glucose metabolism and expression of glucose transporter 4 (GLUT4) and hexokinase II (HXKII) were measured following incubation with atorvastatin or pravastatin. Roles of cholesterol in atorvastatin-induced glucose metabolism impairment were investigated via adding cholesterol or mevalonic acid and confirmed by cholesterol depletion with methyl-beta-cyclodextrin. Hypercholesterolemia mice induced by high fat diet (HFD) feeding, orally received atorvastatin (6 and 12 mg/kg) or pravastatin (12 mg/kg) for 22 days. Results showed that atorvastatin not pravastatin concentration-dependently impaired glucose consumption, glucose uptake and GLUT4 membrane translocation in C2C12 cells without affecting expression of HXKII or total GLUT4 protein. The atorvastatin-induced alterations were reversed by cholesterol or mevalonic acid. Cholesterol depletion exerted similar impact to atorvastatin, which could be alleviated by cholesterol supplement. Glucose consumption or GLUT4 translocation was positively associated with cellular cholesterol levels. In HFD mice, atorvastatin not pravastatin significantly increased blood glucose levels following glucose or insulin dose and decreased expression of membrane not total GLUT4 protein in muscle. Glucose exposure following glucose or insulin dose was negatively correlated to muscular free cholesterol concentration. Expression of membrane GLUT4 protein was positively related to free cholesterol in muscle. In conclusion, atorvastatin impaired glucose utilization in muscle cells partly via inhibiting GLUT4 membrane translocation due to inhibition of cholesterol synthesis by atorvastatin, at least, partly contributing to glucose intolerance in HFD mice. PMID- 29338972 TI - HDL-C, ApoA1 and VLDL-TG as biomarkers for the carotid plaque presence in patients with metabolic syndrome. AB - AIM: Hypercholesterolemia and hyper LDL-C are associated with the atherosclerosis (AS). The current study was performed to evaluate the implication of the others lipoproteins (HDL, LDL, VLDL) and apolipoproteins (ApoA1, ApoB100) with subclinical atherosclerosis (carotid plaque) in patients with metabolic syndrome (MetS) free from cardiovascular disease (CVD). METHODS: Prospective transversal study was conducted in patients with MetS free from cardiovascular disease (CVD). The lipids, lipoproteins and apolipoproteins were measured. The lipoproteins (HDL, LDL, VLDL) were obtained by the precipitation method. The carotid plaque (CP) was evaluated by ultrasonography, method for assessing AS. Logistic regression and analysis tree were used to look for the association and the incrimination of the lipoproteins with the presence of CP. RESULTS: The CP incidence was 60% among the participants, 34.29% on the right and the left plaque against 25.71% for only one plaque. The HDL-C was the only lipoprotein associated with the CP after adjustment of the age, the sex and BMI (OR: 0.007 P: 0.046) with the logistic regression analysis, HDL-C (<0.35 g/l), ApoA1 (<1.43 g/l) and VLDL-TG (>0.656 g/l) are implicated in the presence of CP with the analysis tree analysis. CONCLUSION: Lower level of HDL-C is associated with CP, HDL-C, ApoA1, and high level VLDL-TG but not total cholesterol, and LDL-Care useful parameters in the assessment of initial atherosclerosis in metabolic syndrome. PMID- 29338973 TI - Asthma-COPD overlap: A Portuguese survey. AB - INTRODUCTION: The overlap between asthma and chronic obstructive pulmonary disease (COPD) (ACO) has been discussed for many years but clinical recommendations for this entity have been diverse. This study is intended to reach a consensus on diagnosis, treatment and patient orientation for ACO, within the Portuguese medical community. METHODS: This study was conducted by a multidisciplinary panel of experts from three distinct medical specialties (Pulmonology, Family Medicine and Immunoallergology). This panel selected a total of 190 clinicians, based on their expertise in obstructive airway diseases, to participate in a Delphi structured survey with three rounds of questionnaires. These results were ultimately discussed, in a meeting with the panel of experts and some of the study participants, and consensus was reached in terms of classification criteria, treatment and orientation of ACO patients. RESULTS: The majority of clinicians (87.2%) considered relevant the definition of an overlap entity between asthma and COPD. A consensus was achieved on the diagnosis of ACO presence of simultaneous clinical characteristics of asthma and COPD together with a fixed airflow obstruction (FEV1/FVC<0.7) associated with 2 major criteria (previous history of asthma; presence of a previous history of smoking exposure and/or exposure to biomass combustion; positive bronchodilation test (increase in FEV1 of at least 200mL and 12%) on more than 1 occasion) plus 1 minor criteria (history of atopy; age >=40 years; peripheral eosinophilia (>300eosinophils/MUL or >5% of leukocytes); elevation of specific IgEs or positive skin tests for common allergens). A combination of inhaled corticosteroid (ICS) with long-acting beta2-agonist (LABA) or long-acting muscarinic antagonist (LAMA) was considered as first line pharmacological treatment. Triple therapy with ICS plus LABA and LAMA should be used in more severe or symptomatic cases. Non-pharmacological treatment, similar to what is recommended for asthma and COPD, was also considered highly important. A hospital referral of ACO patients should be made in symptomatic or severe cases or when there is a lack of diagnostic resources. CONCLUSIONS: This study highlights the relevance of defining ACO, within the Portuguese medical community, and establishes diagnostic criteria that are important for future interventional studies. Recommendations on treatment and patient's orientation were also achieved. PMID- 29338974 TI - Usefulness of the "grand-piano sign" for determining femoral rotational alignment in total knee arthroplasty. AB - BACKGROUND: The "grand-piano sign" is a well-known indicator of proper rotational femoral alignment. We investigated changes in the shape of the femoral anterior cutting plane by changing the rotational alignment, anterior portion depth, and cutting plane flexion angle. METHODS: We simulated various cutting planes after cutting the anterior portion of the femur next to the distal femoral osteotomy in 50 patients with varus knee and also a femoral anterior osteotomy with four degree (S group) and seven degree (T group) flexion angles regarding the mechanical axis. We defined the final cutting plane as the farthest position that we could reach without making a notch and the precutting plane as two millimeters anterior from the final cutting plane. The simulated resection plane was rotated to produce external and internal rotation angles of 0 degrees , three degrees, and five degrees relative to the surgical transepicondylar axis (SEA). We investigated medial and lateral portions of the femoral anterior cutting plane length ratio (M/L). RESULTS: When we cut parallel to SEA, M/L was 0.67+/-0.09 and 0.62+/-0.12 in the T and S groups, respectively. M/L was approximately 0.8 and 0.5 with five degree internal and external rotations, respectively (P<0.01). On comparing final cutting and precutting planes, there were no significant differences in M/L without five degree external rotation in the T group and no significant difference in any case in the S group (P>0.01). CONCLUSIONS: The ideal M/L of the femoral anterior cutting plane was 0.62-0.67. M/L did not change with a precutting plane in almost all rotational patterns. PMID- 29338976 TI - WASP (Write a Scientific Paper) using Excel - 4: Histograms. AB - Plotting data into graphs is a crucial step in data analysis as part of an initial descriptive statistics exercise since it gives the researcher an overview of the shape and nature of the data. Outlier values may also be identified, and these may be incorrect data, or true and important outliers. This paper explains how to access Microsoft Excel's Analysis Toolpak and provides some pointers for the utilisation of the histogram tool within the Toolpak. PMID- 29338975 TI - Critical effects of polar fluorescent probes on the interaction of DHA with POPC supported lipid bilayers. AB - The understanding of lipid bilayer structure and function has been advanced by the application of molecular fluorophores. However, the effects of these probe molecules on the physicochemical properties of membranes being studied are poorly understood. A quartz crystal microbalance with dissipation monitoring instrument was used in this work to investigate the impact of two commonly used fluorescent probes, 1-palmitoyl-2-{12-[(7-nitro-2-1,3-benzoxadiazol-4-yl)amino]dodecanoyl}-sn glycero-3-phosphocholine (NBD-PC) and 1,2-dipalmitoyl-sn-glycero-3 phosphoethanolamine-n-(lissamine rhodamine-B-sulfonyl) (Lis-Rhod PE), on the formation and physicochemical properties of a 1-palmitoyl-2-oleoyl-sn-glycero-3 phosphocholine supported lipid bilayer (POPC-SLB). The interaction of the POPC SLB and fluorophore-modified POPC-SLB with docosahexaenoic acid, DHA, was evaluated. The incorporation of DHA into the POPC-SLB was observed to significantly decrease in the presence of the Lis-Rhod PE probe compared with the POPC-SLB. In addition, it was observed that the small concentration of DHA incorporated into the POPC:NBD-PC SLB can produce rearrangement processes followed by the lost not only of DHA but also of POPC or NBD-PC molecules or both during the washing step. This work has significant implications for the interpretation of data employing fluorescent reporter molecules within SLBs. PMID- 29338977 TI - WASP (Write a Scientific Paper) using Excel - 2: Pivot tables. AB - Data analysis at the descriptive stage and the eventual presentation of results requires the tabulation and summarisation of data. This exercise should always precede inferential statistics. Pivot tables and pivot charts are one of Excel's most powerful and underutilised features, with tabulation functions that immensely facilitate descriptive statistics. Pivot tables permit users to dynamically summarise and cross-tabulate data, create tables in several dimensions, offer a range of summary statistics and can be modified interactively with instant outputs. Large and detailed datasets are thereby easily manipulated making pivot tables arguably the best way to explore, summarise and present data from many different angles. This second paper in the WASP series in Early Human Development provides pointers for pivot table manipulation in ExcelTM. PMID- 29338978 TI - Non-risk-adapted Surveillance for Stage I Testicular Cancer: Critical Review and Summary. AB - CONTEXT: Cancer-specific survival for men with clinical stage I testicular cancer (CSITC) is uniformly excellent. Non-risk-adapted active surveillance (NRAS) is a management strategy for CSITC to minimize overtreatment and avoid possible long term side effects of adjuvant therapy. OBJECTIVE: To review the evidence regarding oncologic outcomes for men with CSITC undergoing NRAS and discuss ongoing controversies in the management of CSITC. EVIDENCE ACQUISITION: MEDLINE/PubMed, Embase, and the Cochrane Central Register of Controlled Trials were searched from January 1, 1987 through January 1, 2017. EVIDENCE SYNTHESIS: A total of 68 studies were included in the critical review. The rationale for NRAS, oncologic outcomes, surveillance protocols, and comparative efficacy of risk adjusted active surveillance (AS) were reported with strength of evidence and risk of bias evaluated. Cancer-specific survival approaches 100% for men with CSITC undergoing NRAS. Active treatment is limited to 20-30% of patients who will recur; these patients will require salvage chemotherapy and possible retroperitoneal lymph node dissection. Existing AS protocols include imaging and laboratory evaluations that are initially intensive but less frequent with increasing follow-up. CONCLUSIONS: NRAS is an attractive management option for men with CSITC, which maintains outstanding long-term cancer cure while sparing most patients treatment by avoiding prophylactic chemotherapy, radiation, or surgery. PATIENT SUMMARY: Men with clinically localized (stage I) testicular cancer have an excellent prognosis, regardless of management. Non-risk-adapted active surveillance is an attractive management option where only patients destined to relapse will receive any treatment following orchiectomy. However, individual patient preferences should be discussed in selecting a management strategy. PMID- 29338979 TI - Dysregulated autophagy in restrictive cardiomyopathy due to Pro209Leu mutation in BAG3. AB - Myofibrillary myopathies (MFM) are hereditary myopathies histologically characterized by degeneration of myofibrils and aggregation of proteins in striated muscle. Cardiomyopathy is common in MFM but the pathophysiological mechanisms are not well understood. The BAG3-Pro209Leu mutation is associated with early onset MFM and severe restrictive cardiomyopathy (RCM), often necessitating heart transplantation during childhood. We report on a young male patient with a BAG3-Pro209Leu mutation who underwent heart transplantation at eight years of age. Detailed morphological analyses of the explanted heart tissue showed intracytoplasmic inclusions, aggregation of BAG3 and desmin, disintegration of myofibers and Z-disk alterations. The presence of undegraded autophagosomes, seen by electron microscopy, as well as increased levels of p62, LC3-I and WIPI1, detected by immunohistochemistry and western blot analyses, indicated a dysregulation of autophagy. Parkin and PINK1, proteins involved in mitophagy, were slightly increased whereas mitochondrial OXPHOS activities were not altered. These findings indicate that altered autophagy plays a role in the pathogenesis and rapid progression of RCM in MFM caused by the BAG3-Pro209Leu mutation, which could have implications for future therapeutic strategies. PMID- 29338980 TI - Prevalence of Bovine Aortic Arch Variant in Patients with Aortic Dissection and its Implications in the Outcome of Patients with Acute Type B Aortic Dissection. AB - OBJECTIVE/BACKGROUND: To investigate the prevalence of bovine arch (BA) among patients with type A and B aortic dissection, and to provide insight into the implication of this variation on the outcome of patients with acute or subacute type B aortic dissection (a/sTBAD). METHODS: This retrospective cohort analysis includes patients with a/sTBAD admitted between January 2006 and December 2016. Computed tomographic angiograms (CTAs) of patients referred because of type A aortic dissection were also re-evaluated with regard to the presence of BA. As a control group, 110 oncological patients who had undergone a chest CTA for disease staging during the study period were enrolled. A total of 154 patients with a/sTBAD and 168 with type A aortic dissection were identified during the study period. RESULTS: An overall prevalence of 17.6% for BA variants was revealed. The comparison between patients with aortic dissection and the control group showed no statistically significant difference in BA prevalence (17.7% vs. 17.3%; p = 1.0). No statistically significant difference in BA prevalence was observed when comparing patients with type A aortic dissection with those with type B aortic dissection (16.6% vs. 18.8%; p = .66). During a median follow-up period of 27.8 months, 30 patients died. The mortality rate among patients presenting a BA variant was 34.5%, whereas among patients without, it was 16.0% (p = .04). Multivariate analysis revealed the presence of a BA as an independent predictor of mortality (adjusted odds ratio 3.4, 95% confidence interval 1.2-9.8). CONCLUSION: The BA should be considered as a predictor of the outcome for patients with type B aortic dissection. PMID- 29338981 TI - Reproducibility and agreement of different non-invasive methods of endothelial function assessment. AB - Flow-mediated dilatation (FMD) is an established, but investigator-demanding method, used to non-invasively determine nitric oxide (NO)-dependent endothelial function in humans. Local thermal hyperemia (LTH) or post-occlusive reactive hyperemia (PORH) of the skin measured with a laser Doppler flow imager may be a less demanding alternative of FMD. We investigated the reproducibility of the different measures of vascular function, their interrelationship and the NO dependency of LTH. Measurements were performed twice in 27 healthy men (8 smokers), one week apart. Local application of NG-monomethyl-l-arginine (L-NMMA) by means of iontophoresis was used to determine the NO-dependency of LTH. Using L NMMA, the peak and plateau responses of LTH were reduced by 31% (p < .001) and 65% (<0.001), respectively. For all measurements the coefficient of variation (CV) was higher in smokers than in non-smokers. For non-smokers the CV of FMD was 12%, of LTH peak response 17%, of LTH plateau response 12%, of PORH peak response 14% and of PORH area under the curve response 11%. FMD correlated weakly with the PORH peak and area under the curve response (r = 0.39 and 0.43, p < .05), whereas the LTH-plateau response correlated with the PORH peak response (r = 0.68, p < .01) in non-smokers, but FMD and LTH peak or plateau responses were unrelated. In conclusion, the LTH plateau response is for two-third NO-dependent, but unrelated to FMD. Furthermore, despite easy to perform the LTH responses are not more reproducible than FMD. Given the weak associations, the different methods of vascular function assessment are not interchangeable. PMID- 29338982 TI - Involvement of peripheral alpha2A adrenoceptor in the acceleration of gastrointestinal transit and abdominal visceral pain induced by intermittent deprivation of REM sleep. AB - Many studies have associated sleep alterations with the severity of irritable bowel syndrome (IBS) symptoms, but the direct pathophysiological relationship has not been clarified. In addition, alterations in noradrenergic signaling have been implicated in the pathophysiology of IBS, and alpha2-adrenoceptors are potential treatment targets. We have previously shown that acceleration of gastrointestinal transit (GIT) elicited by intermittent rapid eye movement (REM) sleep deprivation stress may fulfill the profile of a model of IBS. Moreover, we showed hypernoradrenergic function in the brain of sleep-deprived mice. On the other hand, acetic acid-induced writhes indicate visceral pain features of IBS model animals. In this study, using mice, we investigated whether intermittent REM sleep deprivation stress causes changes in acetic acid-induced writhing and whether the number of writhes and GIT are improved by administration of the hydrophilic clonidine analogue, ST-91. Mice were deprived of REM sleep intermittently using the small-platform method (20h/day) for 3days. The intermittent REM sleep deprivation stress elicited acceleration of GIT and the increased number of writhes was significantly improved by ST-91 treatment. The ID50 values of ST-91 on the GIT in cage-control mice and intermittent REM sleep deprived mice were 0.24 and 0.70mg/kg, respectively. In addition, the ID50 values of ST-91 on the writhes in cage-control mice and intermittent REM sleep-deprived mice were 0.52 and 0.73mg/kg, respectively. Further, the expression of alpha2A adrenoceptor was decreased in the distal ileum of intermittent REM sleep-deprived mice compared to that in cage-control mice. Moreover, the effects of ST-91 on GIT and writhes in cage-control and intermittent REM sleep-deprived mice were decreased by the administration of BRL44408 (6mg/kg, i.p.), a selective alpha2A adrenoceptor antagonist, and not by the administration of imiloxan (3mg/kg, i.p.), or JP-1302 (3mg/kg, i.p.), selective alpha2B-and alpha2C-adrenoceptor antagonists, respectively. These results suggest that the increase in GIT and writhes induced by intermittent REM sleep deprivation stress may serve as a model of diarrhea and visceral pain symptoms in IBS. Further, the onset of these symptoms may be related to the hypofunction of peripheral alpha2A-adrenoceptor. PMID- 29338983 TI - Dipyridamole plus Triflusal versus Triflusal Alone in Infarct Reduction after Middle Cerebral Artery Occlusion. AB - BACKGROUND AND PURPOSE: The objective of this work is to study the dose-dependent effect of combination therapy with dipyridamole and triflusal over that of triflusal alone on infarct size after middle cerebral artery occlusion (MCAO) ischemia. MATERIALS AND METHODS: Male Wistar rats were subjected to a permanent MCAO in the right hemisphere. Rats received triflusal alone and with dipyridamole via oral route. Three days after surgery, infarct volumes were measured. RESULTS: The lower dose regime of triflusal (10 mg/kg) and dipyridamole (200 mg/kg) caused the greatest decrease in infarct size compared with higher dose regime of triflusal (30 mg/kg) and dipyridamole (200 mg/kg) (P <.01), triflusal (30 mg/kg) alone (P <.07), and vehicle-treated controls. CONCLUSIONS: The lower dose combination of dipyridamole and triflusal appears to be more effective than triflusal alone after MCAO-induced cerebral ischemia. Therefore, there is a strong rationale to continue to examine the protective effects of triflusal and dipyridamole after cerebral ischemia. PMID- 29338984 TI - Practical guidelines for performing laparoscopic liver resection based on the second international laparoscopic liver consensus conference. AB - Laparoscopic liver resection is rapidly increasing, and certain types of resection are considered standard procedures for liver resection, especially for small malignant tumors located on the liver surface or in the anterolateral segments of the liver. Several specialized centers have performed many types of highly complex hepatectomies, anatomical resections, and laparoscopic donor hepatectomies. Even though several international consensus conferences and expert meetings have been held, until now there have been no practical guidelines for beginners or experts conducting laparoscopic liver resection. We describe here practical guidelines for performing laparoscopic liver resection, including the indications, technical considerations, and training required. PMID- 29338985 TI - The shikimate pathway enzyme that generates chorismate is not required for the development of Plasmodium berghei in the mammalian host nor the mosquito vector. AB - In Plasmodium, the shikimate pathway is a potential target for malaria chemotherapy owing to its absence in the mammalian host. Chorismate, the end product of this pathway, serves as a precursor for aromatic amino acids, Para aminobenzoic acid and ubiquinone, and is synthesised by Chorismate synthase (CS). Therefore, it follows that the Cs locus may be refractory to genetic manipulation. By utilising a conditional mutagenesis system of yeast Flp/FRT, we demonstrate an unexpectedly dispensable role of CS in Plasmodium. Our studies reiterate the need to establish an obligate reliance on Plasmodium metabolic enzymes through genetic approaches before their selection as drug targets. PMID- 29338986 TI - Mismanagement of Severe Altitude Illness in a Tertiary Hospital in Nepal: A Cautionary Tale. PMID- 29338987 TI - Update on the Epidemiology of Scorpion Envenomation in the South of Tunisia. AB - INTRODUCTION: Scorpion envenomation is still a frequent occurance in tropical and subtropical regions. In Tunisia, multiple studies on scorpion envenoming have contributed to an improved understanding of cardiac dysfunction and factors predictive of poor prognosis. These previous studies have contributed to the current standardized management of envenomed patients. However, the epidemiology of scorpion envenoming in Tunisia has not been updated for more than 10 years. The aim of this study was to report an update of the epidemiological features of scorpion envenomation in the southern region of Tunisia. METHODS: This is a retrospective monocentric study including all patients admitted in the emergency room for scorpion envenomation. Cases were collected from emergency medical files during a 3-year period (2013-2015). The diagnosis of scorpion envenomation was made by history of a scorpion sting. All files in which scorpion envenomation was not certain were excluded. Data are presented as mean+/-SD with range or percentages, as appropriate. RESULTS: We enrolled 282 patients aged 27.4+/-22.8 years with a 1:1 sex ratio. During surveillance in the emergency room, 39 patients developed cardiac dysfunction. Overall, 42 patients (14.9%) were at stage 3 of severity, and 240 patients (85.1%) had moderate scorpion envenomation (stage 2). Only 1 patient died a few hours after admission. In the remaining cases, the outcome was good. Our results show the improvement in mortality rates even in severe presentations. CONCLUSION: This study found that the outcome of scorpion-stung patients has clearly improved. This enhancement can be explained by early medical consultation and standardized management of patients with predictive factors for cardiac dysfunction. PMID- 29338988 TI - Acetazolamide Use in Ultrarunners at Altitude: Issues with Doping. PMID- 29338989 TI - Relations Between Self-Reported and Linguistic Monitoring Assessments of Affective Experience in an Extreme Environment. AB - INTRODUCTION: Approaches for monitoring psychosocial health in challenging environments are needed to maintain the performance and safety of personnel. The purpose of the present research was to examine the relationship between 2 candidate methods (self-reported and linguistics) for monitoring affective experience during extreme environment activities. METHODS: A single-subject repeated-measures design was used in the present work. The participant was a 46 year-old individual scheduled to complete a self-supported ski expedition across Arctic Greenland. The expedition lasted 28 days, and conditions included severe cold, low stimulation, whiteouts, limited habitability, and threats to life and limb. During the expedition, the participant completed a daily self-report log including assessment of psychological health (perceptions of control and affect) and a video diary (emotion). Video diary entries were subjected to linguistic inquiry and word count analyses before the links between self-report and linguistic data across the expedition period were tested. RESULTS: Similarities in the pattern of self-reported and linguistic assessments emerged across the expedition period. A number of predictable correlations were identified between self-reported and linguistic assessments of affective/emotional experience. Overall, there was better agreement between self-reports and linguistic analytics for indicators of negative affect/emotion. CONCLUSIONS: Future research should build on this initial study to further test the links between self-reported affect and emotional states monitored via linguistics. This could help develop methods for monitoring psychological health in extreme environments and support organizational decision making. PMID- 29338991 TI - Jellyfish Blooms Causing Mass Envenomations in Aquatic Marathonists: Report of Cases in S and SE Brazil (SW Atlantic Ocean). PMID- 29338990 TI - Frequency of Polycythemia and Other Abnormalities in a Tibetan Herdsmen Population Residing in the Kham Area of Sichuan Province, China. AB - INTRODUCTION: The Kham Tibetans are one of several Tibetan ethnic subgroups living in the Kham area of China. Because studies on the high-altitude adaptation of the Kham people are scant, the main aim of this study is to investigate whether the response to hypoxia, especially polycythemia status, in the Kham Tibetans is different from other Tibetan ethnic subgroups. METHODS: The primary investigation was conducted on 346 native Kham Tibetan adults (268 men and 78 women) from 3 herdsmen villages located in Hongyuan County situated at an altitude of greater than 3600 m. The participants were aged 46.2+/-14.1 (21-82; mean+/-SD with range) years. Anthropometric measurements such as weight, height, waist circumference, body mass index, and blood pressure, as well as laboratory blood tests such as glycosylated hemoglobin, hemoglobin, total cholesterol, triglycerides, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and uric acid were analyzed. RESULTS: The concentrations of hemoglobin were 171.3+/-12.9 (66-229) mg.L-1 and 151.4+/-16.4 (86-190) mg.L-1 in men and women, respectively. The frequency of polycythemia was found to be 25.5 and 21.8% in men and women, respectively. Polycythemia was found to be significantly associated with glycosylated hemoglobin concentrations, hypertension, and hyperuricemia (P=0.002, 0.023, and 0.009, respectively). CONCLUSIONS: There is a higher frequency of polycythemia in the Kham Tibetans when compared with reported studies from other Tibetan ethnic subgroups living on the Qinghai-Tibet plateau. PMID- 29338992 TI - Subsequent fertility, pregnancy, and gynecologic outcomes after fetoscopic laser therapy for twin-twin transfusion syndrome compared with normal monochorionic twin gestations. AB - BACKGROUND: An improved survival and quality of life for neonatal survivors after fetoscopic laser therapy for twin-twin transfusion syndrome has been reported. However, little is known about the medium-term maternal effects after fetoscopic laser therapy with respect to reproductive and gynecologic outcomes. OBJECTIVE: The objective of this study was to document reproductive, obstetric, gynecological, and psychological outcomes in women who underwent fetoscopic laser therapy for twin-twin transfusion syndrome. STUDY DESIGN: This was a monocentric controlled study on consecutive women who underwent fetoscopic laser therapy for twin-twin transfusion syndrome between 2007 and 2013 at the University Hospitals Leuven (cases; n = 198). Controls were women followed up during the same time period for an uncomplicated monochorionic diamniotic twin pregnancy and with an uneventful course (controls; n = 211). All patients received a questionnaire inquiring on their fertility, later pregnancies, and gynecological outcomes. RESULTS: The response rate was 50.4% (cases: n = 95; controls: n = 109). Most baseline characteristics were similar across both groups. Women in the fetoscopic laser therapy group attempted a new pregnancy more frequently (34% [31 of 92] vs 21% [22 of 107] in controls; P < .05) and became pregnant more often (100% [31 of 31] vs 82% [18 of 22]; P < .05).We observed a shorter interpregnancy interval in cases than controls (median interval, 12 [interquartile range, 5-27] vs 24 [interquartile range, 15-30] months) (P < .05). This was also observed in cases who lost one or both fetuses or babies in the index pregnancy (median interval, 9 [interquartile range, 3.5-25.5] months; P < .05). The complication rate during subsequent pregnancies (26% [8 of 31] vs 11% [2 of 19]; P = .194) and at delivery (17% [5 of 30] vs 11% [2 of 19]; P = .554) were comparable. More women who underwent fetoscopic laser coagulation reported relevant psychological symptoms (44% [40 of 92] vs 21% [23 of 107]; P < .05). When only women in whom there was a double-surviving twin pair were considered, there were no differences in psychological symptoms compared with controls (16% [15 of 55] vs 21% [23 of 107]; P = .411). Gynecological problems were equally frequent in both groups (20% [18 of 92] vs 31% [33 of 107]; P = .069). CONCLUSION: No adverse medium-term maternal effects with respect to fertility, obstetric, and gynecological outcomes were observed after fetoscopic laser therapy. However, these women reported more psychological or emotional problems than women with monochorionic diamniotic who did not have laser therapy, in particular when this was complicated by a fetal loss. PMID- 29338993 TI - Peritoneal sarcomatosis 5 years after laparoscopic morcellation of uterine leiomyoma. PMID- 29338994 TI - Both patients and maternity care providers can benefit from payment reform: four steps to prepare. AB - Many Medicaid programs and private health plans are implementing new models of maternity care reimbursement, and clinicians face mounting pressure to demonstrate high-quality care at a lower cost. Clinicians will be better prepared to meet these challenges with a fuller understanding of new payment models and the opportunities they present. We describe the structure of maternity care episode payments and recommend 4 ways that clinicians can prepare for success as value-based payment models are implemented: identify opportunities to improve outcomes and experience, measure quality, reduce waste, and work in teams across settings. PMID- 29338995 TI - Echocardiography as a Clinical Stratification Tool in Venovenous Extracorporeal Membrane Oxygenation. PMID- 29338996 TI - Incidence and Predictors of Postoperative Need for High-Dose Inotropic Support in Patients Undergoing Cardiac Surgery for Infective Endocarditis. AB - OBJECTIVE: Patients with infective endocarditis undergoing cardiac surgery are a high-risk population. Few data on incidence and predictors of need for high-dose inotropic support in this setting are currently available. DESIGN: Retrospective study. SETTING: Tertiary-care hospital. PARTICIPANTS: Ninety consecutive patients undergoing cardiac surgery for infective endocarditis. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Baseline, intraoperative and outcome data were collected. Stepwise multiple logistic regression analysis was performed to identify preoperative predictors of postoperative hemodynamic support. High-dose postoperative inotropic support was defined as inotropic score >10 (calculated as dobutamine dose (in ug/kg/min) + dopamine dose (in ug/kg/min) + (epinephrine dose [in ug/kg/min] * 100) + (norepinephrine dose [in ug/kg/min] * 100) + (milrinone dose [in ug/kg/min] * 10) + (vasopressin dose [in U/kg/min] * 10 000) + (levosimendan dose [in ug/kg/min] * 50) or need for mechanical circulatory support at intensive care unit admission. Postoperative high-dose inotropic or mechanical circulatory support was required in 57 cases (61%). Stepwise multiple logistic regression identified 5 variables independently associated with need for postoperative circulatory support: male sex (odds ratio [OR] = 10.9), surgery duration (OR for every minute increase = 1.01), impairment of kidney function (eGFR <60 mL/min/m2 - OR = 19), preoperative new-onset heart failure (defined by clinical, imaging and laboratory parameters - OR = 5.30), and low preoperative platelet count (for every 1*103/MUl increase - OR = 0.99). CONCLUSIONS: Patients undergoing cardiac surgery for infective endocarditis are at high risk for postoperative hemodynamic instability. Preoperative organ failure is an important determinant for postoperative hemodynamic instability. PMID- 29338997 TI - Meta-analysis of the Sources of Bleeding after Adult Cardiac Surgery. AB - OBJECTIVE: The aim of this study was to pool data on the proportion and prognostic impact of sources of bleeding in patients requiring re-exploration after adult cardiac surgery. DESIGN: Systematic review of the literature and meta analysis. SETTING: Multistitutional study. MEASUREMENTS AND MAIN RESULTS: A literature review was performed to identify studies published since 1990 evaluating the outcome after reoperation for bleeding or tamponade after adult cardiac surgery. Eighteen studies including 5,1497 patients fulfilled the selection criteria. Reoperation for bleeding/tamponade was performed in 2,455 patients (4.6%; 95% confidence interval [CI] 3.9%-5.2%, I2 92%). These had a significantly higher risk of in-hospital/30-day mortality compared with patients not reoperated for bleeding (pooled rates: 9.3% v 2.3%; risk ratio 3.30; 95% CI 2.52-4.32; I2 47%; 8 studies; 25,463 patients). Surgical sites of bleeding were identified in 65.7% of cases (95% CI 58.3%-73.2%; I2 94%), cardiac site bleeding in 40.9% of cases (95% CI 29.7%-52.0%; I2 94%), and mediastinal/sternum site bleeding in 27.0% of cases (95% CI 16.8%-37.3%; I2 94%). The main sites of bleeding were the body of the graft (20.2%), the sternum (17.0%), vascular sutures (12.5%), the internal mammary artery harvest site (13.0%), and anastomoses (9.9%). In metaregression, surgical site bleeding was associated with a lower risk of in-hospital/30-day mortality compared with diffuse bleeding (p = 0.003). CONCLUSIONS: Surgical site bleeding is identified in two-thirds of patients undergoing re-exploration after adult cardiac surgery. Meticulous surgical technique and systematic intraoperative checking of potential surgical sites of bleeding at the time of the original cardiac surgery may reduce the risk of such a severe complication. PMID- 29338998 TI - General Anesthesia Versus Conscious Sedation for Transcatheter Aortic Valve Replacement-An Analysis of Current Outcome Data. PMID- 29338999 TI - Implantable Left Ventricular Assist Device Therapy-Recent Advances and Outcomes. PMID- 29339000 TI - A New Way to Secure Internal Jugular Central Catheters. PMID- 29339001 TI - Does the surgical approach for treating mandibular condylar fractures affect the rate of seventh cranial nerve injuries? A systematic review and meta-analysis based on a new classification for surgical approaches. AB - PURPOSE: The purpose of this study was to determine the rate of facial nerve injury (FNI) when performing (ORIF) of mandibular condylar fractures by different surgical approaches. MATERIALS AND METHODS: A systematic review and meta-analysis were performed that included several databases with specific keywords, a reference search, and a manual search for suitable articles. The inclusion criteria were all clinical trials, with the aim of assessing the rate of facial nerve injuries when (ORIF) of mandibular condylar fractures was performed using different surgical approaches. The main outcome variable was transient facial nerve injury (TFNI) and permanent facial nerve injury (PFNI) according to the fracture levels, namely: condylar head fractures (CHFs), condylar neck fractures (CNFs), and condylar base fractures (CBFs). For studies where there was no delineation between CNFs and CBFs, the fractures were defined as CNFs/CBFs. The dependent variables were the surgical approaches. RESULTS: A total of 3873 patients enrolled in 96 studies were included in this analysis. TFNI rates reported in the literature were as follows: A) For the transoral approach: a) for strictly intraoral 0.72% (1.3 in CNFs and 0% for CBFs); b) for the transbuccal trocar instrumentation 2.7% (4.2% in CNFs and 0% for CBFs); and c) for endoscopically assisted ORIF 4.2% (5% in CNFs, and 4% in CBFs). B) For low submandibular approach 15.3% (26.1% for CNFs, 11.8% for CBFs, and 13.7% for CNFs/CBFs). C) For the high submandibular/angular subparotid approach with masseter transection 0% in CBFs. D) For the high submandibular/angular transmassetric anteroparotid approach 0% (CNFs and CBFs). E) For the transparotid retromandibular approach a) with nerve facial preparation 14.4% (23.9% in CNFs, 11.8% in CBFs and 13.7% for CNFs/CBFs); b) without facial nerve preparation 19% (24.3% for CNFs and 10.5% for CBFs). F) For retromandibular transmassetric anteroparotid approach 3.4% in CNFs/CBFs. G) For retromandibular transmassetric anteroparotid approach with preauricular extension 2.3% for CNFs/CBFs. H) For preauricular approach a) deep subfascial dissection plane 0% in CHFs b) for subfascial approach using traditional preauricular incision 10% (8.5% in CHFs and 11.5% in CNFs). I) For retroauricular approach 3% for CHFs. PFNI rates reported in the literature were as follows: A) for low submandibular approach 2.2%, B) for retromandibular transparotid approach 1.4%; C) for preauricular approach 0.33%; D) for high submandibular approach 0.3%; E) for deep retroparotid approach 1.5%. CONCLUSION: According to published data for CHFs, a retroauricular approach or deep subfascial preauricular approach was the safest to protect the facial nerve. For CNFs, a transmassetric anteroparotid approach with retromandibular and preauricular extension was the safest approach to decrease risk of FNI. For CBFs, high submandibular incisions with either transmassetric anteroparotid approach with retromandibular or transmassetric subparotid approach, followed by intraoral (with or without endoscopic/transbuccal trocar) were the safest approaches with respect to decreased risk of FNI. PMID- 29339002 TI - Development of a new three-directional distractor system for the correction of maxillary transverse and sagittal deficiency. AB - PURPOSE: Class 3 malocclusions with maxillary deficiency, which are treated surgically and/or ordonotically, are common among adult patients. The aim of this study was to develop a three-directional bone-borne distractor that would allow the transverse expansion and sagittal advancement of the maxilla simultaneously. MATERIALS AND METHODS: Computed tomography images of a patient with maxillary deficiency were transmitted to a software program, and a distractor was designed with different sizes (D1, D2, D3) and manufactured from titanium alloy. Y-shape segmental osteotomies were performed on the model, and vertical bite forces were applied. The biomechanical properties were evaluated by using the finite element method. RESULTS: The highest von Mises stress value on the body of the distractor was seen in D2 (D2>D3>D1), with 234 N bite forces. D2 had maximum stress distribution on maxillary bone under 234 N and 93 N (D2>D1>D3). No difference was found among the plastic deformation rates according to biomechanical test results. CONCLUSION: A three-directional bone-borne palatal distractor was produced, and this distractor system can be used for the treatment of skeletal class 3 patients with maxillary hypoplasia for its advantages of shortening the overall treatment time and reducing the scar formation. However, further animal and clinical studies are essential to determine the biological response of soft and hard tissues. PMID- 29339003 TI - Direct recovery of Bacillus subtilis xylanase from fermentation broth with an alcohol/salt aqueous biphasic system. AB - Xylanase enzyme degrades linear polysaccharide beta-1,4 xylan and the hemicellulose of the plant cell wall. There is a growing demand in finding a cost effective alternative for industrial scale production of xylanase with high purity for pharmaceutical applications. In this study, an alcohol/salt aqueous biphasic system (ABS) was adopted to recover xylanase from the Bacillus subtilis fermentation broth. The effects of several ABS parameters such as types and concentrations of alcohols and salts (i.e., sulphate, phosphate, and citrate), amount of crude loading and pH of the system on the recovery of xylanase were investigated. Partition coefficient of xylanase (KE), selectivity (S) and yield (YT) of xylanase in top phase of the ABS were measured. Highest KE (6.58 +/- 0.05) and selectivity (4.84 +/- 0.33) were recorded in an ABS of pH 8 composed of 26% (w/w) 1-propanol, 18% (w/w) ammonium sulphate. High YT of 71.88% +/- 0.15 and a purification fold (PFT) of 5.74 +/- 0.33 were recorded with this optimum recovery of xylanase using alcohol/salt ABS. The purity of xylanase recovered was then qualitatively verified with sodium dodecyl sulphate (SDS) gel electrophoresis. The SDS profile revealed the purified xylanase was successfully obtained in the top phase of the one-step 1-propanol/sulphate ABS with a distinct single band. PMID- 29339004 TI - Differential activation of brain areas in children with developmental coordination disorder during tasks of manual dexterity: An ALE meta-analysis. AB - Recent neuroimaging studies have reported atypical neural activation in children with Developmental Coordination Disorder (DCD) during tasks assessing manual dexterity. However, small sample sizes and subtle differences in task parameters have led to inconsistent findings, rendering interpretation difficult. The aim of the present meta-analysis was to quantitatively summarize this body of evidence using activation likelihood estimation (ALE) analysis to identify reliable regions of differential neural activation in children with DCD, compared to age matched controls. Seven studies that adopted fMRI to compare children with and without DCD during manual performance were identified following a literature search. All were included in the ALE analysis. Compared to controls, children with DCD showed reduced activation during a manual dexterity task in the middle frontal gyrus, superior frontal gyrus, cerebellum, supramarginal gyrus, and inferior parietal lobule. Children with DCD showed greater activation in parts of the thalamus. Findings provide much needed clarification into the possible neural contributors to atypical manual dexterity in DCD and highlight the need for neuroimaging studies to include manual performance outcomes. PMID- 29339005 TI - Effects of exercise and enrichment on behaviour in CD-1 mice. AB - A host of scholarly work has characterized the positive effects of exercise and environmental enrichment on behaviour and cognition in animal studies. The purpose of this study was to investigate the uptake and longitudinal impact of exercise and enrichment on the behavioural phenotype of male and female CD-1 mice. CD-1 mice housed in standard (STD) or exercise and enrichment (EE) conditions post-weaning were tested in the 3-chamber sociability test, open field, and elevated plus maze and exercise activity was monitored throughout the enrichment protocol. Male and female EE mice both showed reduced anxiety and activity in the open field and elevated plus maze relative to sex-matched STD mice. EE altered social behaviours in a sex-specific fashion, with only female EE mice showing increased social preference relative to female STD mice and a preference for social novelty only present in male EE mice. This sexual dimorphism was not observed to be a product of exercise uptake, as CD-1 mice of both sexes demonstrated a consistent trend of wheel rotation frequencies. These findings suggest the importance of considering variables such as sex and strain on experimental design variables in future work on environmental enrichment. PMID- 29339006 TI - Food allergy induces alteration in brain inflammatory status and cognitive impairments. AB - Accumulating evidence supports an increase in emotional and behavioral problems in patients with food allergy, but the underlying mechanism remains poorly understood. Here we found that in addition to inducing an increase of allergic factors in serum, food allergy also increased levels of antigen-specific immunoglobulins and mast cell marker in the brain. In particular, food allergy increased the number of total microglia and the percentage of active microglia in the cerebral cortex and hippocampal CA1 areas, and induced the increase of TNF alpha in the cerebral cortex. Importantly, these brain allergic responses were associated with behavioral impairments, including motor and learning deficits. Taken together, our study provides some evidence for profound effects of food allergy on brain functions, and thereby provides scientific basis for a better explanation of emotional and behavioral problems among patients with food allergy. PMID- 29339007 TI - Suicides, homicides, accidents, and undetermined deaths in the U.S. military: comparisons to the U.S. population and by military separation status. AB - PURPOSE: To compare rates of external causes of mortality among individuals who served in the military (before and after separation from the military) to the U.S. POPULATION: METHODS: This retrospective cohort study examined all 3.9 million service members who served from 2002 to 2007. External cause mortality data from 2002 to 2009 were used to calculate standardized mortality ratios. Negative binomial regression compared differences in the mortality rates for pre- and post-separation. RESULTS: Accident and suicide mortality rates were highest among cohort members under 30 years of age, and most of the accident and suicide rates for these younger individuals exceeded expectation given the U.S. population mortality rates. Military suicide rates began below the expected U.S. rate in 2002 but exceeded the U.S. rate by 2009. Accident, homicide, and undetermined mortality rates remained below the U.S. rates throughout the study period. Mortality rates for all external causes were significantly higher among separated individuals compared with those who did not separate. Mortality rates for individuals after separation from service decreased over time but remained higher than the rates for those who had not separated from service. CONCLUSIONS: Higher rates of death for all external causes of mortality after separation suggest prevention opportunities. Future research should examine how preseparation characteristics and experiences may predict postseparation adverse outcomes to inform transition programs. PMID- 29339008 TI - Updates on the molecular epidemiology of Enterovirus D68 after installation of screening test among acute flaccid paralysis patients in Taiwan. AB - In respond to acute flaccid paralysis (AFP) in association with Enterovirus D68 (EV-D68) infection, Taiwan Centers for Disease Control began to screen EV-D68 infection among each AFP patient since July 2015 and detected the first case in August 2016. This article updated the molecular epidemiology trends of EV-D68 from the national surveillance data. PMID- 29339009 TI - A boy with neck weakness. PMID- 29339010 TI - Differences in Abortion Service Delivery in Hostile, Middle-ground, and Supportive States in 2014. AB - OBJECTIVES: In 2013, the majority of women lived in states considered hostile to abortion rights, or states with numerous abortion restrictions. By comparison, 31% lived in supportive states. This study examined differences in abortion service delivery according to the policy climate in which clinics must operate. METHODS: Data come from the 2014 Abortion Provider Census, which contains information about all known abortion-providing facilities in the United States. In addition to number and type of facility, we examine several aspects of abortion care: provision of only early medication abortion (EMA-only), whether an advanced practice clinician provided abortions, gestational parameters, and average charge for procedure. All indicators were examined nationally and according to whether the clinic was in a state that was hostile, middle ground, or supportive of abortion rights. RESULTS: In 2014, hostile and supportive states accounted for the same proportion of all U.S. abortions-44% (each)-although 57% of women age 15 to 44 lived in hostile states. Hostile states had one-half as many abortion-providing facilities as supportive ones. EMA-only facilities accounted for 37% of clinics in supportive states compared with 8% in hostile states. Sixty-five percent of clinics in supportive states reported that advanced practice clinicians provided abortion care, compared with 3% in hostile states. After cost of living adjustments, a first-trimester surgical abortion was most expensive in middle-ground states ($470) and least expensive in supportive states ($402). CONCLUSIONS: The distribution of abortion services, the type of facility in which they are provided, and the amount a facility charges all vary according to the abortion policy climate. PMID- 29339011 TI - Facilitators and Barriers to Healthy Pregnancy Spacing among Medicaid Beneficiaries: Findings from the National Strong Start Initiative. AB - BACKGROUND: Closely spaced, unintended pregnancies are common among Medicaid beneficiaries and create avoidable risks for women and infants, including preterm birth. The Strong Start for Mothers and Newborns Initiative, a program of the Center for Medicare and Medicaid Innovation, intended to prevent preterm birth through psychosocially based enhanced prenatal care in maternity care homes, group prenatal care, and birth centers. Comprehensive care offers the opportunity for education and family planning to promote healthy pregnancy spacing. METHODS: As of March 30, 2016, there were 42,138 women enrolled in Strong Start and 23,377 women had given birth. Individual-level data were collected through three participant survey instruments and a medical chart review, and approximately one half of women who had delivered (n = 10,374) had nonmissing responses on a postpartum survey that asked about postpartum family planning. Qualitative case studies were conducted annually for the first 3 years of the program and included 629 interviews with staff and 122 focus groups with 887 Strong Start participants. RESULTS: Most programs tried to promote healthy pregnancy spacing through family planning education and provision with some success. Group care sites in particular established protocols for patient-centered family planning education and decision making. Despite program efforts, however, barriers to uptake remained. These included state and institutional policies, provider knowledge and bias, lack of protocols for timing and content of education, and participant issues such as transportation or cultural preferences. CONCLUSIONS: The Strong Start initiative introduced a number of successful strategies for increasing women's knowledge regarding healthy pregnancy spacing and access to family planning. Multiple barriers can impact postpartum Medicaid participants' capacity to plan and space pregnancies, and addressing such issues holistically is an important strategy for facilitating healthy interpregnancy intervals. PMID- 29339012 TI - Patient-Rated Access to Needed Care: Patient-Centered Medical Home Principles Intertwined. AB - BACKGROUND: Primary care teams can facilitate access to care by helping patients to determine whether and when care is needed, and coordinating care across multiple clinicians and settings. Appointment availability metrics may or may not capture these contributions, but patients' own ratings of their access to care provide an important alternative view of access that may be more closely related to these key functions of care teams. PROCEDURES: We used a 2015 telephone survey of 1,395 women veterans to examine associations between key care team functions and patient-rated access to needed care. The care team functions were care coordination, in-person communication (between patient and care team), and phone communication (timely answers to health questions). We controlled for sociodemographics, health status, care settings, and other experience of care measures. KEY FINDINGS: Overall, 74% of participants reported always or usually being able to see a provider for routine care, and 68% for urgent care. In adjusted analyses, phone communication was associated with better ratings of access to routine care (odds ratio [OR], 4.31; 95% CI, 2.65-6.98) and urgent care (OR, 2.26; 95% CI, 1.23-4.18). Care coordination was also associated with better ratings of access to routine care (OR, 1.66; 95% CI, 1.01-2.74) and urgent care (OR, 2.26; 95% CI, 1.23-4.18). Associations with in-person communication were not significant. CONCLUSIONS: Access, communication, and care coordination are interrelated. Approaches to improving access may prove counterproductive if they compromise the team's ability to coordinate care, or diminish the team's role as a primary point of contact for patients. PMID- 29339013 TI - The Use of Telemental Health to Meet the Mental Health Needs of Women Using Department of Veterans Affairs Services. AB - BACKGROUND: Women veterans are a growing segment of Department of Veterans Affairs (VA) users with distinct mental health needs and well-documented barriers to care. Telemental health holds much promise for reducing barriers to mental health care. We assessed VA stakeholders' perceptions of telemental health's appropriateness and potential to address the mental health needs of women veteran VA users. METHODS: We conducted semistructured qualitative interviews with 40 key leadership and clinical stakeholders at VA medical centers and associated outpatient clinics. Transcripts were summarized in a template of key domains developed based on the interview guide, and coded for topics relevant to women's mental health needs and telehealth services. RESULTS: Telemental health was perceived to increase access to mental health care, including same-gender care and access to providers with specialized training, especially for rural women and those with other limiting circumstances. Respondents saw women veterans as being particularly poised to benefit from telemental health, owing to responsibilities associated with childcare, spousal care, and elder caregiving. Interviewees expressed enthusiasm for telemental health's potential and were eager to expand services, including women-only mental health groups. Implementation challenges were also noted. CONCLUSIONS: Overall, our stakeholders saw telemental health as a good fit for helping to address the perceived needs of women veterans, especially in addressing the geographical barriers experienced by rural women and those with a limited ability to travel. These findings can help to inform gender tailored expansion of telemental health within and outside of the VA. PMID- 29339015 TI - Ambicor 2-Piece Inflatable Penile Prosthesis: Who and How? AB - BACKGROUND: Currently the Ambicor is the only 2-piece inflatable penile prosthesis (IPP) available in the United States. By eliminating the separate reservoir, this provides certain advantages for patient and surgeon. Nevertheless, it composes a small percentage of all IPPs implanted in the United States. AIM: To detail the surgical technique for implantation, describe the ideal patient candidates best suited for the Ambicor, and discuss the most common and some rare complications with a review of the available published literature in combination with our clinical experience. METHODS: A PubMed literature search was performed to obtain all peer-reviewed articles published in English specifically on the Ambicor 2-piece IPP. We also reviewed our clinical experience with the Ambicor during the past 2 decades. RESULTS: The published data remain limited, because few articles on the Ambicor have been published in the past 10 years. Overall complication rates were 2.1% to 9.5%. Patient satisfaction rates were 75% to 96.4%, with similar partner satisfaction rates. Relative contraindications for implantation include patients with significant penile deformities, long narrow phalluses, or short phalluses. STRENGTHS AND LIMITATIONS: Despite the limited available published data with short follow-up periods, this review provides a comprehensive discussion on the technical aspects and relevant perioperative counseling recommended for Ambicor implantation. CONCLUSION: The prosthetic urologist should offer the Ambicor 2-piece IPP to patients with erectile dysfunction whose non-surgical treatment has failed. Certain implanters might want to avoid the blind retropubic reservoir placement that occurs with 3-piece IPPs and might not be comfortable with an ectopic approach and therefore prefer using a 2-piece device. We believe the ideal Ambicor candidate is a patient with a current or future pelvic organ transplant, decreased manual dexterity, in need of complete phallic reconstruction, or with known extensive prior abdominopelvic surgery. Abdelsayed GA, Levine LA. Ambicor 2 Piece Inflatable Penile Prosthesis: Who and How? J Sex Med 2018;15:410-415. PMID- 29339014 TI - Development of GPC3-Specific Chimeric Antigen Receptor-Engineered Natural Killer Cells for the Treatment of Hepatocellular Carcinoma. AB - Chimeric antigen receptor (CAR)-modified natural killer (NK) cells represent a promising immunotherapeutic modality for cancer treatment. However, their potential utilities have not been explored in hepatocellular carcinoma (HCC). Glypian-3 (GPC3) is a rational immunotherapeutic target for HCC. In this study, we developed GPC3-specific NK cells and explored their potential in the treatment of HCC. The NK-92/9.28.z cell line was established by engineering NK-92, a highly cytotoxic NK cell line with second-generation GPC3-specific CAR. Exposure of GPC3+ HCC cells to this engineered cell line resulted in significant in vitro cytotoxicity and cytokine production. In addition, soluble GPC3 and TGF-beta did not significantly inhibit the cytotoxicity of NK-92/9.28.z cells in vitro, and no significant difference in anti-tumor activities was observed in hypoxic (1%) conditions. Potent anti-tumor activities of NK-92/9.28.z cells were observed in multiple HCC xenografts with both high and low GPC3 expression, but not in those without GPC3 expression. Obvious infiltration of NK-92/9.28.z cells, decreased tumor proliferation, and increased tumor apoptosis were observed in the GPC3+ HCC xenografts. Similarly, efficient retargeting on primary NK cells was achieved. These results justified clinical translation of this GPC3-specific, NK cell-based therapeutic as a novel treatment option for patients with GPC3+ HCC. PMID- 29339016 TI - Expression of sperm PLCzeta and clinical outcomes of ICSI-AOA in men affected by globozoospermia due to DPY19L2 deletion. AB - Globozoospermia is characterized by the presence of 100% acrosomeless round headed spermatozoa in an ejaculate. Failed fertilization after intracytoplasmic sperm injection (ICSI) is commonly reported for globozoospermic couples and can be overcome by artificial oocyte activation (AOA). Phospholipase C zeta (PLCzeta) is one of the main sperm factors involved in oocyte activation and its low expression levels mainly account for fertilization failure. Deletion of the DPY19L2 gene is reported as a main genetic cause in over 70% of infertile men with globozoospermia. The current study assesses the expression profile of sperm PLCzeta at RNA and protein levels in 32 DPY19L2 deletion-mediated globozoospermic men and reports corresponding clinical outcomes following ICSI with AOA. The expression of PLCzeta relative to GAPDH at RNA (0.78 +/- 0.16 versus 1.65 +/- 0.24; P = 0.02) and protein (0.39 +/- 0.12 versus 0.83 +/- 0.13; P = 0.01) levels in globozoospermic men with DPY19L2 deletion was significantly lower compared with fertile men (n = 32). Fertilization rate in globozoospermic couples following ICSI-AOA was significantly lower compared with fertile men (53.14 +/- 5.13% versus 87.64 +/- 2.38%, P < 0.001). However, implantation (26.2%) and pregnancy (53.8%) rates were not jeopardized by DPY19L2 deletion in these couples. PMID- 29339017 TI - Reliability and agreement on embryo assessment: 5 years of an external quality control programme. AB - An external quality-control programme for morphology-based embryo quality assessment, incorporating a standardized embryo grading scheme, was evaluated over a period of 5 years to determine levels of inter-observer reliability and agreement between practising clinical embryologists at IVF centres and the opinions of a panel of experts. Following Guidelines for Reporting Reliability and Agreement Studies, the Gwet index and proportion of positive (Ppos) and negative agreement were calculated. For embryo morphology assessment, a substantial degree of reliability was measured between the centres and the panel of experts (Gwet index: 0.76; 95% CI 0.70 to 0.84). The agreement was higher for good- versus poor-quality embryos. When multinucleation or vacuoles were observed, low levels of reliability were obtained (Ppos: 0.56 and 0.43, respectively). In blastocysts, the characteristic that presented the largest discrepancy was that related to the inner cell mass. In decisions about the final disposition of the embryo, reliability between centre and the panel of experts was moderate (Gwet index: 0.51; 95% CI 0.41 to 0.60). In conclusion, the ability of clinical embryologists to evaluate the presence of multinucleation and vacuoles in the early cleavage embryo, and to determine the category of the inner cell mass in blastocysts, needs to be improved. PMID- 29339018 TI - Nicotine alleviates chronic stress-induced anxiety and depressive-like behavior and hippocampal neuropathology via regulating autophagy signaling. AB - Recently, we reported that chronic nicotine significantly improved chronic stress induced impairments of cognition and the hippocampal synaptic plasticity in mice, however, the underlying mechanism still needs to be explored. In the present study, 32 male C57BL/6 mice were divided into four groups: control (CON), stress (CUS), stress with chronic nicotine administration (CUS + Nic) and chronic nicotine administration (Nic). The anxiety-like behavior and neuropathological alteration of DG neurons were examined. Moreover, PC12 cells were examined with corticosterone in the presence or absence of nicotine. Both cell viability and apoptosis were determined. When treated simultaneously with an unpredictable chronic mild stress (CUS), nicotine (0.2 mg/kg/d) attenuated behavioral deficits and neuropathological alterations of DG neurons. Moreover, Western blotting showed that chronic nicotine also elevated the level of autophagy makers including Beclin-1 and LC3 II triggered by CUS. In addition, concomitant treatment with nicotine (10 MUM) significantly attenuated the loss of PC12 cell viability (p < .01) and apoptosis compared to that of corticosterone treatment alone. Besides, chronic nicotine also enhanced the protein and RNA expression levels of autophagy makers triggered by corticosterone, such as Beclin-1, LC3 II and p62/SQSTM1. However, the above improvements were significantly blocked by autophagy inhibitor 3-MA. Importantly, the activation of the PI3K/Akt/mTOR signaling was carefully tested to illuminate the effects of chronic nicotine. Consequently, chronic nicotine played a role of neuroprotection in either CUS mice or corticosterone cells associating with the enhancement of the autophagy signaling, which was involved in activating the PI3K/Akt/mTOR signaling. PMID- 29339019 TI - Immuno-modulatory functions of the type-3 secretion system and impacts on the pulmonary host defense: A role for ExoS of Pseudomonas aeruginosa in cystic fibrosis. AB - Number of previous reviews had described the structures and the various functions of the exotoxins produced by the type-3 secretion system of Pseudomonas aeruginosa and their roles in the interactions of this bacterium with host cells. In this review, we summarize some relevant data of literature on ExoS, an exotoxin from the type-3 secretion system of P. aeruginosa, with a particular focus on the role of this toxin in the airways innate response of the host to infection by this bacterium, and its implication in the elimination of Staphylococcus aureus from the airways of patients with cystic fibrosis. PMID- 29339021 TI - Being Andrew Lees. PMID- 29339020 TI - Cecile Vogt. PMID- 29339022 TI - Exposure assessments for a cross-sectional epidemiologic study of US carbon nanotube and nanofiber workers. AB - BACKGROUND: Recent animal studies have suggested the potential for wide-ranging health effects resulting from exposure to carbon nanotubes and nanofibers (CNT/F). To date, no studies in the US have directly examined the relationship between occupational exposure and potential human health effects. OBJECTIVES: Our goal was to measure CNT/F exposures among US workers with representative job types, from non-exposed to highly exposed, for an epidemiologic study relating exposure to early biologic effects. METHODS: 108 participants were enrolled from 12 facilities across the US. Personal, full-shift exposures were assessed based on the mass of elemental carbon (EC) at the respirable and inhalable aerosol particle size fractions, along with quantitatively characterizing CNT/F and estimating particle size via transmission electron microscopy (TEM). Additionally, sputum and dermal samples were collected and analyzed to determine internal exposures and exposures to the hands/wrists. RESULTS: The mean exposure to EC was 1.00 MUg/m3 at the respirable size fraction and 6.22 MUg/m3 at the inhalable fraction. Analysis by TEM found a mean exposure of 0.1275 CNT/F structures/cm3, generally to agglomerated materials between 2 and 10 MUm. Internal exposures to CNT/F via sputum analysis were confirmed in 18% of participants while ~70% had positive dermal exposures. CONCLUSIONS: We demonstrated the occurrence of a broad range of exposures to CNT/F within 12 facilities across the US. Analysis of collected sputum indicated internal exposures are currently occurring within the workplace. This is an important first step in determining if exposures in the workforce have any acute or lasting health effects. PMID- 29339023 TI - Calculated shape dependence of electromagnetic field in tip-enhanced Raman scattering by using a monopole antenna model. AB - To evaluate the shape of an Ag tip with regard to tip-enhanced Raman scattering (TERS) signal, the enhanced electromagnetic (EM) field and scattering spectrum, arising from surface plasmon resonance at the apex of the tip, were calculated using a finite-difference time domain (FDTD) method. In the calculated forward scattering spectra from the smooth Ag tip, the band appeared within the visible region, similar to the experimental results and calculation for a corrugated Ag cone. In the FDTD calculation of TERS, the Ag tip acting as a monopole antenna was adopted by insertion of a perfect electric conductor between the root of the tip and a top boundary surface of the calculation space. As a result, the EM field was only enhanced at the apex. The shape dependence i.e. the EM field calculated at the apex with various curvatures on the different tapered tips, obtained using the monopole antenna model, was different from that simulated using a conventional dipole antenna model. PMID- 29339025 TI - Electroacoustic verification of frequency modulation systems in cochlear implant users. AB - INTRODUCTION: The frequency modulation system is a device that helps to improve speech perception in noise and is considered the most beneficial approach to improve speech recognition in noise in cochlear implant users. According to guidelines, there is a need to perform a check before fitting the frequency modulation system. Although there are recommendations regarding the behavioral tests that should be performed at the fitting of the frequency modulation system to cochlear implant users, there are no published recommendations regarding the electroacoustic test that should be performed. OBJECTIVE: Perform and determine the validity of an electroacoustic verification test for frequency modulation systems coupled to different cochlear implant speech processors. METHODS: The sample included 40 participants between 5 and 18 year's users of four different models of speech processors. For the electroacoustic evaluation, we used the Audioscan Verifit device with the HA-1 coupler and the listening check devices corresponding to each speech processor model. In cases where the transparency was not achieved, a modification was made in the frequency modulation gain adjustment and we used the Brazilian version of the "Phrases in Noise Test" to evaluate the speech perception in competitive noise. RESULTS: It was observed that there was transparency between the frequency modulation system and the cochlear implant in 85% of the participants evaluated. After adjusting the gain of the frequency modulation receiver in the other participants, the devices showed transparency when the electroacoustic verification test was repeated. It was also observed that patients demonstrated better performance in speech perception in noise after a new adjustment, that is, in these cases; the electroacoustic transparency caused behavioral transparency. CONCLUSION: The electroacoustic evaluation protocol suggested was effective in evaluation of transparency between the frequency modulation system and the cochlear implant. Performing the adjustment of the speech processor and the frequency modulation system gain are essential when fitting this device. PMID- 29339024 TI - Nrf2/ARE pathway attenuates oxidative and apoptotic response in human osteoarthritis chondrocytes by activating ERK1/2/ELK1-P70S6K-P90RSK signaling axis. AB - Nrf2, a redox regulated transcription factor, has recently been shown to play a role in cartilage integrity but the mechanism remains largely unknown. Osteoarthritis (OA) is a multifactorial disease in which focal degradation of cartilage occurs. Here, we studied whether Nrf2 exerts chondroprotective effects by suppressing the oxidative stress and apoptosis in IL-1beta stimulated human OA chondrocytes. Expression of Nrf2 and its target genes HO-1, NQO1 and SOD2 was significantly high in OA cartilage compared to normal cartilage and was also higher in damaged area compared to smooth area of OA cartilage of the same patient. Human chondrocytes treated with IL-1beta resulted in robust Nrf2/ARE reporter activity, which was inhibited by pretreatment with antioxidants indicating that Nrf2 activity was due to IL-1beta-induced ROS generation. Ectopic expression of Nrf2 significantly suppressed the IL-1beta-induced generation of ROS while Nrf2 knockdown significantly increased the basal as well as IL-1beta induced ROS levels in OA chondrocytes. Further, Nrf2 activation significantly inhibited the IL-1beta-induced activation of extrinsic and intrinsic apoptotic pathways as determined by inhibition of DNA fragmentation, activation of Caspase 3,-8,-9, cleavage of PARP, release of cytochrome-c, suppression of mitochondrial dysfunction and mitochondrial ROS production in OA chondrocytes. Nrf2 over expression in OA chondrocytes increased the expression of anti-apoptotic proteins while pro-apoptotic proteins were suppressed. Importantly, Nrf2 over-expression activated ERK1/2 and its downstream targets-ELK1, P70S6K and P90RSK and suppressed the IL-1beta-induced apoptosis whereas inhibition of ERK1/2 activation abrogated the protective effects of Nrf2 in OA chondrocytes. Taken together, our data demonstrate that Nrf2 is a stress response protein in OA chondrocytes with anti-oxidative and anti-apoptotic function and acts via activation of ERK1/2/ELK1 P70S6K-P90RSK signaling axis. These activities of Nrf2 make it a promising candidate for the development of novel therapies for the management of OA. PMID- 29339027 TI - A comparative study of osteopontin and MMP-2 protein expression in peripheral and central giant cell granuloma of the jaws. AB - INTRODUCTION: Oral peripheral and central giant cell granulomas are lesions with little-known etiology and pathogenesis. OBJECTIVE: The aim of this study was to compare matrix metalloproteinases-2 and osteopontin protein expression in the multinucleated giant cells and mononuclear cells of the peripheral and central giant cell granuloma lesions. METHODS: In this retrospective study, the presence of matrix metalloproteinases-2 and osteopontin in 37 cases of central giant cell granuloma and 37 cases of peripheral giant cell granuloma paraffin blocks were assessed by streptavidin-biotin immunohistochemistry. Independent sample t-test, Chi-square, Mann-Whitney tests and Spearman's rank correlation coefficient were used. RESULTS: The osteopontin was expressed in both multinucleated giant cells and mononuclear cells in all cases of peripheral and central giant cells granulomas. However, the matrix metalloproteinases-2 expression was positive in 86.5% of giant cells and it was positive in all of mononuclear cells in peripheral giant cells granuloma. In central giant cells granulomas, 91.8% of giant cells and all mononuclear cells were positive for matrix metalloproteinases 2 marker. Percentage and Intensity of staining were significantly higher in central than peripheral giant cells lesions, for both markers (p?0.05). CONCLUSION: This study showed that the expression of osteopontin in giant cells supports the theory of osteolcastic nature of these cells. Also, the presence of osteopontin and matrix metalloproteinases-2 in mononuclear cells may indicate the monocyte-macrophage origin of these cells, as the differentiation of the precursors of the mononuclear stromal monocyte/macrophage to osteoclasts is possibly affected by the expression of osteolytic factors. Also, may be differences in biological behaviors of these lesions are associated with the level of osteopontin and matrix metalloproteinases-2 expression. PMID- 29339028 TI - Overexpression of CDC7 in malignant salivary gland tumors correlates with tumor differentiation. AB - INTRODUCTION: Cell division cycle-7 protein is a serine/threonine kinase that has a basic role in cell cycle regulation and is a potential prognostic or therapeutic target in some human cancers. OBJECTIVES: This study investigated the expression of cell division cycle-7 protein in benign and malignant salivary gland tumors and also its correlation with clinicopathologic factors. METHODS: Immunohistochemical expression of cell division cycle-7 was evaluated in 46 cases, including 15 adenoid cystic carcinoma, 12 mucoepidermoid carcinoma, 14 pleomorphic adenoma, and 5 normal salivary glands. Cell division cycle-7 expression rate and intensity were compared statistically. RESULTS: The protein was expressed in almost all tumors. The intensity and mean of cell division cycle 7 expression were higher in malignant tumors in comparison with pleomorphic adenomas (p=0.000). The protein expression was correlated with tumor grades (p=0.000). CONCLUSIONS: The present study demonstrated cell division cycle-7 overexpression in malignant salivary gland tumors in comparison with pleomorphic adenomas, and also a correlation with tumor differentiation. Therefore, this protein might be a potential prognostic and therapeutic target for salivary gland tumors. PMID- 29339026 TI - Tinnitus and sound intolerance: evidence and experience of a Brazilian group. AB - INTRODUCTION: Tinnitus and sound intolerance are frequent and subjective complaints that may have an impact on a patient's quality of life. OBJECTIVE: To present a review of the salient points including concepts, pathophysiology, diagnosis and approach of the patient with tinnitus and sensitivity to sounds. METHODS: Literature review with bibliographic survey in LILACS, SciELO, Pubmed and MEDLINE database. Articles and book chapters on tinnitus and sound sensitivity were selected. The several topics were discussed by a group of Brazilian professionals and the conclusions were described. RESULTS: The prevalence of tinnitus has increased over the years, often associated with hearing loss, metabolic factors and inadequate diet. Medical evaluation should be performed carefully to guide the request of subsidiary exams. Currently available treatments range from medications to the use of sounds with specific characteristics and meditation techniques, with variable results. CONCLUSION: A review on tinnitus and auditory sensitivity was presented, allowing the reader a broad view of the approach to these patients, based on scientific evidence and national experience. PMID- 29339029 TI - Degree of tinnitus improvement with stapes surgery - a review. AB - INTRODUCTION: Otospongiosis is temporal bone osteodystrophy, characterized by disordered bone resorption and neoformation in genetically predisposed individuals. Clinically, otospongiosis is characterized by progressive conductive and/or mixed hearing loss and by tinnitus. OBJECTIVE: A review of the last two decades of publications that report the degree of tinnitus improvement with stapes surgery. METHODS: 125 articles published in the last 20 years mentioning the relationship between otosclerosis and tinnitus. Literature has always shown that the hearing improvement after stapes surgery was the main result sought and found. However, recent articles has reinforced the need for surgery for the tinnitus improvement. The ideal time to assess tinnitus through different scales is in the sixth month post-operative. The estimated average hearing improvement is 93% and tinnitus is 85.52%. RESULTS: Summaries of 12 articles were reviewed which fulfilled the search criteria of the survey, and 8 studies were included in the study according the selection criteria. This studies investigating the degree of tinnitus improvement with stapes surgery, using different scales as: tinnitus functional index, visual analog scale, tinnitus functional index and visual analog scale, visual analog scale and "questionnaire asking about tinnitus", Newman's method and Tinnitus Score Advocated by the Japan Audiological Society. The total of the samples of the evaluated articles was of 254 participants. CONCLUSION: We conclude that stapes surgery is effective for the treatment of tinnitus (average improvement is 85.52%), and hearing loss (average improvement is 93%). When deciding about the surgical indication in patients with otosclerosis, the presence and level tinnitus should be considered as well as the level of hearing. PMID- 29339030 TI - Preoperative insulin therapy as a marker for type 2 diabetes remission in obese patients after bariatric surgery. AB - BACKGROUND: Obesity not only increases the chances of developing diabetes-one of the top causes of death in the United States-but it also results in further medical complications. OBJECTIVE: To compare the 6-month and 1-year postoperative remission rates of type 2 diabetic (T2D) patients after bariatric surgery based on preoperative glycosylated hemoglobin (A1C) stratification and pharmacologic therapy: insulin-dependent diabetic (IDD) versus noninsulin-dependent diabetic (NIDD). SETTING: Academic hospital, United States. METHODS: We retrospectively analyzed a prospectively maintained database of 186 obese patients with a diagnosis T2D who had undergone either a sleeve gastrectomy or a Roux-en-Y gastric bypass surgery at our hospital. RESULTS: At 6 months (n = 180), patients who were stratified by preoperative A1C levels (<6.5; >=6.5 to<8; >=8) had 70.5%, 51.7%, and 30.0% remission rates (P<.001) and at 1 year (n = 118) patients had 72.0%, 54.0%, and 42.8% remission rates (P = .053), respectively. When patients were substratified by preoperative pharmacologic therapy, IDD and NIDD patients had different remission rates within the same A1C level. At 6-months follow-up within A1C >=6.5 to<8 (IDD versus NIDD), the remission rate was 23.5% versus 64.1% (odds ratio [OR]: .173, confidence interval [CI]: .0471, .6308, P = .0079), and within A1C >=8 the remission was 24.0% versus 37.5% (OR: .5263, CI: .2115, 1.3096, P = .1676), respectively. At 1-year follow-up within A1C >=6.5 to<8, the remission rate was 30.0% versus 62.9% (OR: .2521, CI: .0529, 1.2019, P = .0838), and within A1C >=8 the remission was 31.4% versus 61.9% (OR: .2821, CI: .0908, .8762, P = .0286), respectively. Furthermore, when IDD patients were compared between A1C >=6.5 to<8 and A1C >=8 the remission rates were nearly identical, and for NIDD patients A1C was not significantly associated with remission regardless of the level, except at 6 months. CONCLUSION: While a difference was observed between overall A1C levels-the lower the A1C level, the higher the remission rate IDD patients had lower remission rates than NIDD patients irrespective of A1C levels; further, IDD patients performed similarly across A1C levels. PMID- 29339031 TI - Resolution of type 2 diabetes after sleeve gastrectomy: a 2-step hypothesis. AB - BACKGROUND: Weight loss (WL) and altered gut hormonal levels are involved in glucose homeostasis after laparoscopic sleeve gastrectomy (LSG). OBJECTIVES: The aim of this study was to evaluate the time-related effects of WL, ghrelin, and glucacon-like peptide-1 (GLP-1) plasma concentrations on type 2 diabetes resolution after LSG. SETTING: University hospital, Italy. METHODS: Ninety-one patients who underwent LSG were investigated. Insulin secretion (insulinogenic index [IGI]), insulin resistance, plasma glucose level and percentage glycated hemoglobin using the oral glucose tolerance test were assessed before surgery, on postoperative day 3, and then at 6, 12, 24, and 36 months after LSG. At the same time points, WL, ghrelin, and GLP-1 levels were determined. RESULTS: During follow-up, the resolution rate of type 2 diabetes was 9.4%, 42.3%, 71.8%, 81.2%, and 91.8%, respectively. Ghrelin plasma concentrations decreased significantly after LSG (271.5 +/- 24.5 pg/mL versus 122.4 +/- 23.4 pg/mL, P = .04). GLP-1 plasma concentrations increased significantly after LSG (1.7 +/- 2.6 pg/mL versus 2.5 +/- 3.4 pg/mL, P = .04). The percentage of excess weight loss and IGI presented a positive linear correlation (r) at all follow-up time points with a strong positive correlation at 12 and 24 months. A strong negative correlation between ghrelin and IGI was recorded during the first 3 days after LSG (r = -.9). GLP-1 and IGI presented a strong positive correlation at day 3 and 6 months (i.e., .8 and .8, respectively). CONCLUSION: LSG may affect glucose homeostasis by 2 different time-related modes: a first step in which the hormonal changes play a predominant role in glucose homeostasis and a second step in which the percentage excess weight loss determines the metabolic results. PMID- 29339032 TI - The relation between pro-oxidant antioxidant balance and glycolipid profile, 6 months after gastric bypass surgery. AB - BACKGROUND: Morbid obesity is a chronic disease that contributes to increased oxidative stress. Gastric bypass surgery is the gold standard method in treating co-morbidities. OBJECTIVES: The objective of this study was to evaluate the relation between pro-oxidant antioxidant balance (PAB) as one measure of oxidative stress and glycolipid profile 6 months after gastric bypass surgery. SETTING: Imam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran. METHODS: Thirty-five morbidly obese patients with body mass index >=35 kg/m2 with co-morbidities or <=40 kg/m2 were randomly recruited. The PAB assay was used to estimate oxidative stress. Anthropometrics and glycolipid profile were collected at recruitment and 6 months after surgery. Statistical analysis was performed using SPSS 16 software. RESULTS: The study showed a significant postoperative reduction in serum PAB values compared with the baseline (P<.001). All anthropometric and several glycolipid parameters significantly reduced after surgery (P<.001), while serum high-density lipoprotein cholesterol was unaffected. Repeated measures analysis of variance showed that postoperative PAB values were affected by gastric bypass surgery (F = 12.51, P = .001). Regression analysis demonstrated medication usage controlling co-morbidities (beta^ = -.6, P = .002) and fasting blood glucose (beta^ = .41, P = .04) as independent factors in predicting PAB values 6 months after surgery. CONCLUSIONS: Gastric bypass surgery can reduce PAB values in favor of antioxidants 6 months after the operation. Accordingly, fasting blood glucose after gastric bypass surgery can be an independent factor in predicting PAB values. PMID- 29339033 TI - Helminth Modulation of Lung Inflammation. AB - Parasitic helminths must establish chronic infections to complete their life cycle and therefore are potent modulators of multiple facets of host physiology. Parasitic helminths have coevolved with humans to become arguably master selectors of our immune system, whereby they have impacted on the selection of genes with beneficial mutations for both host and parasite. While helminth infections of humans are a significant health burden, studies have shown that helminths or helminth products can alter susceptibility to unrelated infectious or inflammatory diseases. This has generated interest in the use of helminth infections or molecules as therapeutics. In this review, we focus on the impact of helminth infections on pulmonary immunity, especially with regard to homeostatic lung function, pulmonary viral and bacterial (co)infections, and asthma. PMID- 29339034 TI - Extracellular matrix proteins and carcinoembryonic antigen-related cell adhesion molecules characterize pancreatic duct fluid exosomes in patients with pancreatic cancer. AB - BACKGROUND: Exosomes are nanovesicles that have been shown to mediate carcinogenesis in pancreatic ductal adenocarcinoma (PDAC). Given the direct communication of pancreatic duct fluid with the tumor and its relative accessibility, we aimed to determine the feasibility of isolating and characterizing exosomes from pancreatic duct fluid. METHODS: Pancreatic duct fluid was collected from 26 patients with PDAC (n = 13), intraductal papillary mucinous neoplasm (IPMN) (n = 8) and other benign pancreatic diseases (n = 5) at resection. Exosomes were isolated by serial ultracentrifugation, proteins were identified by mass spectrometry, and their expression was evaluated by immunohistochemistry. RESULTS: Exosomes were isolated from all specimens with a mean concentration of 5.9 +/- 1 * 108 particles/mL and most frequent size of 138 +/- 9 nm. Among the top 35 proteins that were significantly associated with PDAC, multiple carcinoembryonic antigen-related cell adhesion molecules (CEACAMs) and extracellular matrix (ECM) proteins were identified. Interestingly, CEACAM 1/5 expression by immunohistochemistry was seen only on tumor epithelia whereas tenascin C positivity was restricted to stroma, suggesting that both tumor and stromal cells contributed to exosomes. CONCLUSION: This is the first study showing that exosome isolation is feasible from pancreatic duct fluid, and that exosomal proteins may be utilized to diagnose patients with PDAC. PMID- 29339035 TI - The effect of dietary carbohydrate on gastroesophageal reflux disease. AB - BACKGROUND: Acid changes in gastroesophageal reflux with vary component in the food have less been studied, especially carbohydrate. We plan to clarify the effect of different carbohydrate density on low esophageal acid and reflux symptoms of patients with gastroesophgeal reflux disease. METHODS: Twelve patients (52 +/- 12 years old; five female) with gastroesophageal reflux disease were recruited for the prospective crossover study. Each patient was invited for panendoscope, manometry and 24 h pH monitor. The two formulated liquid meal, test meal A: 500 ml liquid meal (containing 84.8 g carbohydrate) and B: same volume liquid meal (but 178.8 g carbohydrate) were randomized supplied as lunch or dinner. Reflux symptoms were recorded. RESULTS: There are significant statistic differences in more Johnson-DeMeester score (p = 0.019), total reflux time (%) (p = 0.028), number of reflux periods (p = 0.026) and longest reflux (p = 0.015) after high carbohydrate diet than low carbohydrate. Total reflux time and number of long reflux periods more than 5 min are significant more after high carbohydrate diet. CONCLUSION: More acid reflux symptoms are found after high carbohydrate diet. High carbohydrate diet could induce more acid reflux in low esophagus and more reflux symptoms in patients with gastroesophageal reflux disease. PMID- 29339036 TI - A cone-beam computed tomography study of C-shaped root canal systems in mandibular second premolars in a Taiwan Chinese subpopulation. AB - BACKGROUND/PURPOSE: The purpose of this study is to investigate the prevalence and the morphologic characteristics of the radicular groove and root canal system in human mandibular second premolars with C-shaped root in a Taiwan Chinese subpopulation using cone-beam computed tomographic (CBCT) imaging. METHODS: CBCT images of 580 mandibular second premolars were collected from 317 patients. All of the mandibular second premolars were examined in serial axial sections to identify the presence of any C-shaped root and C-shaped canal systems. The morphologic characteristics of mandibular second premolars with C-shaped roots were studied by performing measurements of serial axial sections. RESULTS: The prevalence rate of mandibular second premolars with a C-shaped root was 3.45% (20/580 teeth) and the rate of those with a C-shaped canal system was 2.24% (13/580 teeth). It was found that 69% of the radicular grooves were located on the lingual half of the root (9/13 teeth) in mandibular second premolars with a C shaped canal system. In those teeth with a lingual radicular groove, the main canal was toward the buccal side. Frequently, the first C-shaped canal image was found at the mid-root level. The deepest part of the radicular groove was located at about 2.5 mm apical to the first C-shaped canal image. CONCLUSION: There was a 2-3% morphologic variation of the mandibular second premolar with a C-shaped root canal system among the Taiwan Chinese subpopulation investigated in this study. Detailed knowledge of the morphological characteristics of teeth may be valuable when choosing clinical treatments. PMID- 29339037 TI - Reply to the letters to the editor regarding the elevated body mass index is a risk factor associated with possible liver cirrhosis across different etiologies of chronic liver disease: Methodological issues. PMID- 29339038 TI - Curcumin inhibits TGF-beta1-induced connective tissue growth factor expression through the interruption of Smad2 signaling in human gingival fibroblasts. AB - BACKGROUND/PURPOSE: Many fibrotic processes are associated with an increased level of transforming growth factor-beta1 (TGF-beta1). TGF-beta1 can increase synthesis of matrix proteins and enhance secretion of protease inhibitors, resulting in matrix accumulation. Connective tissue growth factor (CTGF) is a downstream profibrotic effector of TGF-beta1 and is associated with the fibrosis in several human organs. Curcumin has been applied to reduce matrix accumulation in fibrotic diseases. This study was aimed to evaluate whether curcumin could suppress TGF-beta1-induced CTGF expression and its related signaling pathway involving in this inhibitory action in primary human gingival fibroblasts. METHODS: The differences in CTGF expression among three types of gingival overgrowth and normal gingival tissues were assessed by immunohistochemistry. Gingival fibroblast viability in cultured media with different concentrations of curcumin was studied by MTT assay. The effect of curcumin on TGF-beta1-induced CTGF expression in primary human gingival fibroblasts was examined by immunoblotting. Moreover, the proteins involved in TGF-beta1 signaling pathways including TGF-beta1 receptors and Smad2 were also analyzed by immunoblotting. RESULTS: CTGF was highly expressed in fibroblasts, epithelial cells and some of endothelial cells, smooth muscle cells, and inflammatory cells in phenytoin induced gingival overgrowth tissues rather than in those of hereditary and inflammatory gingival overgrowth tissues. Moreover, CTGF expression in the epithelial and connective tissue layers was higher in phenytoin-induced gingival overgrowth tissues than in normal gingival tissues. Curcumin was nontoxic and could reduce TGF-beta1-induced CTGF expression by attenuating the phosphorylation and nuclear translocation of Smad2. CONCLUSION: Curcumin can suppress TGF-beta1 induced CTGF expression through the interruption of Smad2 signaling. PMID- 29339039 TI - Sixty years of DNA melting in review: Comment on the review article "DNA melting and energetics of the double helix" by Alexander Vologodskii and Maxim D. Frank Kamenetskii. PMID- 29339040 TI - Effectiveness of workplace diabetes prevention programs: A systematic review of the evidence. AB - PURPOSE: The primary purpose is to review diabetes workplace interventions and the degree to which they improve diabetes-related outcomes in employees diagnosed with or at risk for T2DM. METHODS: Three electronic databases and ancestry searches were used to identify peer reviewed articles published in English from 2000 to June 2017. RESULTS: The number of participants represented by the 22 selected studies, excluding one large outlier, was 4243. On average, the samples were 57% female and ethnically diverse. Interventions-healthy eating behaviors, physical activity, and/or monitoring and self-managing diabetes and cardiovascular risk factors-were delivered in group sessions of fewer than 20 employees. Programs involved 1-h weekly sessions held during lunch hour or at other times during the workday for 12 to 24 weeks. Study outcomes, commonly measured at 6 and/or 12 months, were consistently positive. CONCLUSION: The literature search uncovered beginning evidence that workplace interventions hold promise for preventing diabetes and/or its complications. More rigorous, creatively designed, workplace studies, are needed for employees at high-risk for developing diabetes. PRACTICE IMPLICATIONS: Implications include the need for employer education about the benefits of employer support for such programs and attention to motivational strategies so employees will take full advantage of programs that are offered. PMID- 29339042 TI - Chemotherapy-induced Nausea and Vomiting Prophylaxis in High-dose Melphalan and Autologous Stem Cell Transplantation. PMID- 29339041 TI - Factors influencing women's perceptions of shared decision making during labor and delivery: Results from a large-scale cohort study of first childbirth. AB - OBJECTIVE: To examine correlates of shared decision making during labor and delivery. METHODS: Data were from a cohort of women who gave birth to their first baby in Pennsylvania, 2009-2011 (N = 3006). We used logistic regression models to examine the association between labor induction and mode of delivery in relation to women's perceptions of shared decision making, and to investigate race/ethnicity and SES as potential moderators. RESULTS: Women who were Black and who did not have a college degree or private insurance were less likely to report high shared decision making, as well as women who underwent labor induction, instrumental vaginal or cesarean delivery. Models with interaction terms showed that the reduction in odds of shared decision making associated with cesarean delivery was greater for Black women than for White women. CONCLUSIONS: Women in marginalized social groups were less likely to report shared decision making during birth and Black women who delivered by cesarean had particularly low odds of shared decision making. PRACTICE IMPLICATIONS: Strategies designed to improve the quality of patient-provider communication, information sharing, and shared decision making must be attentive to the needs of vulnerable groups to ensure that such interventions reduce rather than widen disparities. PMID- 29339043 TI - The Relationship Between Red Cell Distribution Width and Cancer-Specific Survival in Patients With Renal Cell Carcinoma Treated With Partial and Radical Nephrectomy. AB - INTRODUCTION: The aim of the study was to evaluate the influence of red cell distribution width (RDW) on cancer-specific survival (CSS) in patients who undergo nephrectomy for renal cell carcinoma (RCC). PATIENTS AND METHODS: A total number of 434 patients with pathologically proven RCC treated with radical or partial nephrectomy between 2003 and 2012 were identified in a single tertiary academic center. To evaluate the accuracy of RDW for CSS prediction, a receiver operating characteristic (ROC) curve was plotted. Patients were divided into 2 groups, with low and high RDW, according to the optimal cutoff value, which was determined according to the ROC curve. The association between groups and CSS was analyzed using the Kaplan-Meier method with log-rank testing. The Cox proportional hazards regression model was applied to perform univariate and multivariate analysis for CSS. RESULTS: Median follow-up was 2146 days. There were no differences between subjects with high and low RDW in terms of sex, age, body mass index, histological type of tumor, frequency of partial nephrectomy, and TNM stage. Patients with high RDW had significantly lower hematocrit, hemoglobin level, and red blood cell count. Tumor necrosis and larger tumor size were significantly more prevalent in the group of patients with high RDW. CSS was significantly lower in patients with RDW >= 13.9% compared with patients with RDW < 13.9%. After adjustment for pathological and clinical covariates RDW remained an independent predictor for CSS in a multivariable model for CSS. CONCLUSION: Our study revealed that the RDW might be an easily obtainable prognostic marker in RCC patients treated with nephrectomy. PMID- 29339044 TI - The Cardiovascular Toxicity of Abiraterone and Enzalutamide in Prostate Cancer. AB - INTRODUCTION: The cardiovascular toxicity related to abiraterone and enzalutamide has been previously studied by our group. In this analysis, we aim to update our previous findings related to abiraterone and enzalutamide, including the new available evidence, both in castration-resistant and hormone-sensitive prostate cancer. PATIENTS AND METHODS: Prospective studies were identified by searching the MEDLINE/PubMed, Cochrane Library, and ASCO Meeting abstracts. Combined relative risks (RRs) and 95% confidence intervals (CIs) were calculated using fixed- or random-effects methods. RESULTS: We included 7 articles in this meta analysis, covering a total of 8660 patients who were used to evaluate cardiovascular toxicity. The use of new hormonal agents was associated with an increased risk of all-grade (RR, 1.36; 95% CI, 1.13-1.64; P = .001) and high grade (RR, 1.84; 95% CI, 1.21-2.80; P = .004) cardiac toxicity. The use of new hormonal agents was also associated with an increased risk of all-grade (RR, 1.98; 95% CI, 1.62-2.43; P = .001) and high-grade (RR, 2.26; 95% CI, 1.84-2.77; P = .004) hypertension compared with the controls. Abiraterone was found to significantly increase the risk of both cardiac toxicity and hypertension, whereas enzalutamide significantly increases only the risk of hypertension. No differences were found based on the dose of prednisone used with abiraterone. The major limitation of this study is that data are available only as aggregate, and no single-patient information could be analyzed. CONCLUSIONS: Abiraterone and enzalutamide significantly increase the incidence and RR of cardiovascular toxicity in patients affected by metastatic prostate cancer. Follow-up for the onset of treatment-related cardiovascular events should therefore be considered in these patients. PMID- 29339045 TI - Deficiency of dietary pyridoxine disturbed the intestinal physical barrier function of young grass carp (Ctenopharyngodon idella). AB - The aim of this study was to assess the effects of dietary pyridoxine (PN) deficiency on intestinal antioxidant capacity, cell apoptosis and intercellular tight junction in young grass carp (Ctenopharyngodon idella). A total of 540 young grass carp (231.85 +/- 0.63 g) were fed six diets containing graded levels of PN (0.12-7.48 mg/kg diet) for 10 weeks. At the end of the feeding trial, the fish were challenged with Aeromonas hydrophila for 2 weeks. The results showed that compared with the optimal PN level, PN deficiency (1) increased the contents of reactive oxygen species (ROS), malondialdehyde (MDA) and protein carbonyl (PC), decreased the activities and mRNA levels of antioxidant enzymes such as copper, zinc superoxide dismutase (CuZnSOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) (P < .05); (2) up-regulated the mRNA levels of cysteinyl aspartic acid-protease-3 (caspase-3), caspase-7, caspase-8, caspase-9, Bcl-2 associated X protein (Bax), apoptotic protease activating factor-1 (Apaf-1) and Fas ligand (FasL), and down regulated the mRNA levels of inhibitor of apoptosis proteins (IAP), B-cell lymphoma protein-2 (Bcl-2) and myeloid cell leukaemia-1 (Mcl-1) (P < .05); (3) down-regulated the mRNA levels of ZO-1, occludin [only in middle intestine (MI)], claudin-b, claudin-c, claudin-f, claudin-3c, claudin-7a, claudin-7b and claudin 11, and up-regulated the mRNA levels of claudin-12 and claudin-15a (P < .05), which might be partly linked to Kelch-like-ECH-associated protein 1a (Keap1a)/NF E2-related factor 2 (Nrf2), p38 mitogen-activated protein kinase (p38MAPK) and myosin light chain kinase (MLCK) signalling in the intestines of fish. However, the activities and mRNA levels of MnSOD, the mRNA levels of Keap1b, c-Jun N terminal protein kinase (JNK) and claudin-15b in three intestinal segments, and the mRNA levels of occludin in the proximal intestine (PI) and distal intestine (DI) were not affected by graded levels of PN. These data indicate that PN deficiency could disturb the intestinal physical barrier function of fish. Additionally, based on the quadratic regression analysis for MDA content and GST activity, the dietary PN requirements for young grass carp were estimated as 4.85 and 5.02 mg/kg diet, respectively. PMID- 29339046 TI - Stereotactic body radiation therapy (SBRT) for high-risk prostate cancer: Where are we now? AB - PURPOSE: Stereotactic body radiation therapy (SBRT) is increasingly being used for the management of localized prostate cancer. This trend combined with declining use of brachytherapy (BT) has pushed issues and questions regarding the use of SBRT to the forefront. A systematic literature review was conducted to review the current evidence of biochemical disease-free survival (bDFS) and toxicity of SBRT in high-risk (HR) prostate cancer. METHODS AND MATERIALS: A search was carried out on the PubMed and Embase databases. Studies were included if HR patients were treated using SBRT monotherapy or as a boost and bDFS was reported. Selected high-dose-rate (HDR) BT studies including HR patients from published reviews were selected to compare with SBRT results. Data from recent published phase 3 trials involving HR patients were also compared. RESULTS: Our search yielded 8862 articles. Of these, 20 studies with a median follow-up from 1.6 to 7 years were included in this review. The 5-year bDFS was 81% to 91% in monotherapy studies and 90% to 98% in boost studies. For reference, 19 studies that reported treating HR patients with HDR monotherapy or boost were selected. The 5-year bDFS in HDR monotherapy studies and boost studies was 85% to 93% and 72% to 93%, respectively. The incidence of late grade 3 genitourinary toxicity was 0% to 4.4% and 0% to 2.3% in SBRT monotherapy and SBRT boost studies, respectively. CONCLUSION: The evidence for SBRT in HR patients in this review is based on observational studies with relatively few patients and short follow-up (level III evidence). Based on these data and the principles surrounding treatment, SBRT boost should ideally be validated in clinical trials. SBRT monotherapy should be used cautiously in highly selected HR patients outside of a clinical trial. SUMMARY: Stereotactic body radiation therapy (SBRT) is increasingly being used for the management of clinically localized prostate cancer. This trend, combined with the decline in the use of brachytherapy, has pushed issues and questions regarding the use of SBRT to the forefront. A systematic literature review was conducted to establish the current evidence of biochemical and toxicity outcomes of SBRT in high-risk prostate cancer. PMID- 29339047 TI - The impact of semilateral decubitus position on the dose-volume parameters of the heart and lung for left sided breast cancer patients: A comparative dosimetric study. AB - PURPOSE: When treating breast cancer with radiation therapy, the impact of treatment position on heart and lung dose-volume parameters (DVPs) is largely dependent on the maximal heart distance (MHD) and central lung distance (CLD). We evaluate how much heart and lung sparing can be achieved using the semilateral decubitus (SLD) position without and with breath hold compared with the standard supine position for left-sided breast cancer patients. A secondary aim was to investigate the impact of MHD and CLD on heart and lung DVPs. METHODS AND MATERIALS: Thirty-five left-sided breast cancer patients were simulated in supine, free breathing SLD, and SLD with breath hold positions. A dosimetry plan was developed for each of these and 3 plans were compared for target coverage and organs at risk sparing. A correlation between CLD, MHD, and planning target volume, and heart and ipsilateral lung DVPs was tested. RESULTS: SLD breath hold position showed a significant reduction in percentage of heart receiving >=5 Gy (V5Gy), V10Gy, V25Gy, V30Gy, mean dose and maximum dose (P < .001), ipsilateral lung V20Gy, and mean dose compared with supine (P < 001) and free breathing SLD (P = .003 and .006). There was also a significant reduction in the heart DVPs (P < .001) and ipsilateral lung DVPs (P < .001 and .007) with free breathing SLD compared with the supine position. SLD with or without breath hold were associated with significant reduction in MLD (P < .001) and CLD (P = .030 and .003) compared with the supine position. CONCLUSION: Treatment plans for patients in the SLD position with or without breath hold for left-sided breast cancer patients demonstrated a superior heart and lung sparing compared with the supine position due to significant reduction in MHD and CLD. MHD and CLD are important simulation factors that affect the heart and lung DVP. PMID- 29339049 TI - Genotype and homology analysis of pathogenic and colonization strains of Candida albicans from hospitalized neonates. AB - BACKGROUND: To detect the genotypes of pathogenic and colonization Candida albicans strains and to reveal whether there was a homologous relationship between these strains. METHODS: Pathogenic and colonization isolates were collected from infants in the NICU of Shenzhen People's Hospital (Shenzhen, People's Republic of China). rDNA identification, multilocus sequence typing (MLST), and multi-loci variable number tandem repeat analysis (MLVA) were used for species confirmation, strain identification, phylogenetic tree clustering, and assessment of homology among the pathogenic and colonization strains. RESULTS: All 48 isolates belonged to C. albicans species; 12 were collected from premature infants with fungal sepsis. These isolates generated 5 sequence types (ST1867, ST2551, ST2552, ST2937, and ST2945) and were designated as pathogenic strains. The other 36 isolates were collected from the infants without fungal infection; 9 sequence types were detected and designated as the colonization strains. In the phylogenetic tree, the upper branch consisted of a 4 degrees clade composed of 20 colonization isolates designated to 3 strains, and 4 pathogenic isolates designated to 1 strain; a 5 degrees clade composed of 8 pathogenic isolates designated to 3 strains; and a 4 degrees clade consisting 1 pathogenic isolate designated to 1 strain and 4 colonization isolates designated to 2 strains. The lower branch consisted of a 3 degrees clade composed of 6 colonization isolates designated to 2 strains and a control pathogenic isolate, and a 3 degrees clade composed of 5 colonization isolates designated to 2 strains. CONCLUSION: Although there was no core ST detected to specify pathogenicity or colonization of C. albicans, the genotypes of the colonization strains were different from those of the pathogenic strains. Most of the colonization and pathogenic strains were highly homologous within their classifications while some pathogenic strains had genomes highly homologous with those of colonization strains and clustered in heterogeneous groups. PMID- 29339048 TI - Intrarenal fat deposition does not interfere with the measurement of single kidney perfusion in obese swine using multi-detector computed tomography. AB - BACKGROUND: Altered vascular structure or function in several diseases may impair renal perfusion. Multi-detector computed tomography (MDCT) is a non-invasive tool to assess single-kidney perfusion and function based on dynamic changes in tissue attenuation during contrast media transit. However, changes in basal tissue attenuation might hamper these assessments, despite background subtraction. Evaluation of iodine concentration using the dual-energy (DECT) MDCT mode allows excluding effects of basal values on dynamic changes in tissue attenuation. We tested whether decreased basal kidney attenuation secondary to intrarenal fat deposition in swine obesity interferes with assessment of renal perfusion using MDCT. METHODS: Domestic pigs were fed a standard (lean) or a high cholesterol/carbohydrate (obese) diet (n = 5 each) for 16 weeks, and both kidneys were then imaged using MDCT/DECT after iodinated contrast injection. DECT images were post-processed to generate iodine and virtual-non-contrast (VNC) datasets, and the MDCT kidney/aorta CT number (following background subtraction) and DECT iodine ratios calculated during the peak vascular phase as surrogates of renal perfusion. Intrarenal fat was subsequently assessed with Oil-Red-O staining. RESULTS: VNC maps in obese pigs revealed decreased basal cortical attenuation, and histology confirmed increased renal tissue fat deposition. Nevertheless, the kidney/aorta attenuation and iodine ratios remained similar, and unchanged compared to lean pigs. CONCLUSIONS: Despite decreased basal attenuation secondary to renal adiposity, background subtraction allows adequate assessment of kidney perfusion in obese pigs using MDCT. These observations support the feasibility of renal perfusion assessment in obese subjects using MDCT. PMID- 29339050 TI - Neonatal solid tumors: A therapeutic challenge. PMID- 29339051 TI - An unusual GFAP mutation in a Taiwanese child with infantile Alexander disease. PMID- 29339052 TI - Neurophysiological effects in cortico-basal ganglia-thalamic circuits of antidyskinetic treatment with 5-HT1A receptor biased agonists. AB - Recently, the biased and highly selective 5-HT1A agonists, NLX-112, F13714 and F15599, have been shown to alleviate dyskinesia in rodent and primate models of Parkinson's disease, while marginally interfering with antiparkinsonian effects of levodopa. To provide more detailed information on the processes underlying the alleviation of dyskinesia, we have here investigated changes in the spectral contents of local field potentials in cortico-basal ganglia-thalamic circuits following treatment with this novel group of 5-HT1A agonists or the prototypical agonist, 8-OH-DPAT. Dyskinetic symptoms were consistently associated with 80 Hz oscillations, which were efficaciously suppressed by all 5-HT1A agonists and reappeared upon co-administration of the antagonist, WAY100635. At the same time, the peak-frequency of fast 130 Hz gamma oscillations and their cross-frequency coupling to low-frequency delta oscillations were modified to a different extent by each of the 5-HT1A agonists. These findings suggest that the common antidyskinetic effects of these drugs may be chiefly attributable to a reversal of the brain state characterized by 80 Hz gamma oscillations, whereas the differential effects on fast gamma oscillations may reflect differences in pharmacological properties that might be of potential relevance for non-motor symptoms. PMID- 29339053 TI - Upregulation of NLRP3 via STAT3-dependent histone acetylation contributes to painful neuropathy induced by bortezomib. AB - Painful neuropathy, as a severe side effect of chemotherapeutic bortezomib, is the most common reason for treatment discontinuation. However, the mechanism by which administration of bortezomib leads to painful neuropathy remains unclear. In the present study, we found that application of bortezomib significantly increased the expression of NOD-like receptor family pyrin domain containing 3 (NLRP3) and phosphorylated signal transducer and activator of transcription-3 (STAT3) in dorsal root ganglion (DRG). Intrathecal injection of NLRP3 siRNA significantly prevented the mechanical allodynia induced by bortezomib treatment, and intrathecal injection of recombinant adeno-associated virus vector encoding NLRP3 markedly decreased paw withdrawal threshold of naive rats. Furthermore, the expressions of p-STAT3 were colocalized with NLRP3-positive cells in DRG neurons, and inhibition of STAT3 by intrathecal injection of AAV-Cre-GFP into STAT3flox/flox mice or inhibitor S3I-201 suppressed the upregulation of NLRP3 and mechanical allodynia induced by bortezomib treatment. Chromatin immunoprecipitation further found that bortezomib increased the recruitment of STAT3, as well as the acetylation of histone H3 and H4, in the NLRP3 promoter region in DRG neurons. Importantly, inhibition of the STAT3 activity by using S3I 201 or DRG local deficiency of STAT3 also significantly prevented the upregulated H3 and H4 acetylation in the NLRP3 promoter region following bortezomib treatment. Altogether, our results suggest that the upregulation of NLRP3 in DRG via STAT3-dependent histone acetylation is critically involved in bortezomib induced mechanical allodynia. PMID- 29339054 TI - The dynamics of vector-borne relapsing diseases. AB - In this paper, we describe the dynamics of a vector-borne relapsing disease, such as tick-borne relapsing fever, using the methods of compartmental models. After some motivation and model description we provide a proof of a conjectured general form of the reproductive ratio R0, which is the average number of new infections produced by a single infected individual. A disease free equilibrium undergoes a bifurcation at R0=1 and we show that for an arbitrary number of relapses it is a transcritical bifurcation with a single branch of endemic equilibria that is locally asymptotically stable for R0 sufficiently close to 1. Furthermore, we show there is no backwards bifurcation. We then show that these results can be extended to variants of the model with an example that allows for variation in the number of relapses before recovery. Finally, we discuss implications of our results and directions for future research. PMID- 29339055 TI - Emotional States and Sudden Death. PMID- 29339056 TI - Do Not Resuscitate Tattoos. PMID- 29339057 TI - Hidden Giant: Medium Vessel Vasculitis as a Cause for Unresolving Fever. PMID- 29339058 TI - Carboxylic group riched graphene oxide based disposable electrochemical immunosensor for cancer biomarker detection. AB - In this work, we have developed for the first time a carboxylic group riched graphene oxide based disposable electrochemical immunosensor for cancer biomarker detection using methylene blue (MB). The developed immunosensor is highly sensitive for detection of biomarker Mucin1 (MUC1) in human serum samples. Development of this disposable electrochemical immunosensor was premeditated by applying specific monoclonal antibodies against MUC1. In this method, we explored highly conductive surface of carboxylic group (-COOH-) rich graphene oxide (GO) on screen-printed carbon electrodes (SPCE). This modified GO-COOH-SPCE was employed for the detection of MUC1 protein based on the reaction with methylene blue (MB) redox probe using differential pulse voltammetry (DPV) technique. Developed immunosensor exhibited good detection range for MUC1 with excellent linearity (0.1 U/mL- 2 U/mL), with a limit of detection of 0.04 U/mL. Upon potential application of developed biosensor, good recoveries were recorded in the range of 96-96.67% with % R.S.D 4.2. Analytical performance of the developed immunosensor assures the applicability in clinical diagnostic applications. PMID- 29339059 TI - Moving toward rapid and low-cost point-of-care molecular diagnostics with a repurposed 3D printer and RPA. AB - Traditionally, the majority of nucleic acid amplification-based molecular diagnostic tests are done in centralized settings. In recent years, point-of-care tests have been developed for use in low-resource settings away from central laboratories. While most experts agree that point-of-care molecular tests are greatly needed, their availability as cost-effective and easy-to-operate tests remains an unmet goal. In this article, we discuss our efforts to develop a recombinase polymerase amplification reaction-based test that will meet these criteria. First, we describe our efforts in repurposing a low-cost 3D printer as a platform that can carry out medium-throughput, rapid, and high-performing nucleic acid extraction. Next, we address how these purified templates can be rapidly amplified and analyzed using the 3D printer's heated bed or the deconstructed, low-cost thermal cycler we have developed. In both approaches, real-time isothermal amplification and detection of template DNA or RNA can be accomplished using a low-cost portable detector or smartphone camera. Last, we demonstrate the capability of our technologies using foodborne pathogens and the Zika virus. Our low-cost approach does not employ complicated and high-cost components, making it suitable for resource-limited settings. When integrated and commercialized, it will offer simple sample-to-answer molecular diagnostics. PMID- 29339060 TI - Quantification of a recombinant antigen in an immuno-stimulatory whole yeast cell based therapeutic vaccine. AB - Therapeutic vaccines represent an emerging class of immune-modulatory treatments for cancer, infections, and chronic diseases. One such vaccine was designed as an immune stimulator of the T cell response against HBV antigens to eliminate HBV infected cells and offer a therapeutic avenue to treat patients suffering from chronic hepatitis B infection. Whole deactivated Saccharomyces cerevisiae cells expressing a recombinant fusion of HBV X, S and Core antigens elicit T cell responses in mice and activate human T cells linked with viral clearance. As the therapeutic efficacy of the yeast-based vaccine relies on the production of the recombinant antigen, analytical methods designed to accurately and precisely quantitate the fusion protein in the midst of all the yeast proteins are necessary. We report the development and characterization of western blot, quantitative ELISA and mass spectrometry based orthogonal methods to support the assessment of manufacturing consistency. PMID- 29339061 TI - Dose-dependent photochemical/photothermal toxicity of indocyanine green-based therapy on three different cancer cell lines. AB - The Food and Drug Administration-approved Indocyanine Green can be used as a photosensitizer to kill cancer cells selectively. Although indocyanine green is advantageous as a photosensitizer in terms of strong absorption in the near infrared region, indocyanine green-based cancer treatment is still not approved as a clinical method. Some reasons for this are aggregation at high concentrations, rapid clearance of the photosensitizer from the body, low singlet oxygen quantum yield, and the uncertainty concerning its action mechanism. This in vitro study focuses on two of these points: "what is the cell inhibition mechanism of indocyanine green-based therapy?" and "how the dose-dependent aggregation problem of indocyanine green alters its cell inhibition efficiency?" The following experiments were conducted to provide insight into these points. Nontoxic doses of indocyanine green and near-infrared laser were determined. The aggregation behavior of indocyanine green was verified through experiments. The singlet oxygen quantum yield of indocyanine green at different concentrations were calculated. Various indocyanine green and energy densities of near-infrared light were applied to prostate cancer, neuroblastoma, and colon cancer cells. An MTT assay was performed at the end of the first, second, and third days following the treatments to determine the cell viability. Temperature changes in the medium during laser exposure were recorded. ROS generation following the treatment was verified by using a Total Reactive Oxygen Species detection kit. An apoptosis detection test was performed to establish the cell death mechanism and, finally, the cellular uptakes of the three different cells were measured. According to the results, indocyanine green-based therapy causes cell viability decrease for three cancer cell lines by means of excessive reactive oxygen species production. Different cells have different sensitivities to the therapy possibly because of the differentiation level and structural differences. The singlet oxygen generation of indocyanine green decreases at high concentrations because of aggregation. Nevertheless, better cancer cell killing effect was observed at higher photosensitizer concentrations. This result reveals that the cellular uptake of indocyanine green was determinant for better cancer cell inhibition. PMID- 29339062 TI - The effect of humeral tunnel locations on radiographic tunnel changes in baseball players following medial ulnar collateral ligament reconstruction: comparison of anatomic and nonanatomic locations. AB - BACKGROUND: There has been no study on radiologic changes after medial ulnar collateral ligament (MUCL) reconstruction and related clinical features. METHODS: Data from 39 baseball players who underwent MUCL reconstruction were collected and analyzed. The baseball players were classified into 2 groups according to the starting point of the humeral tunnel: (1) the lower tip of the medial epicondyle (group NA, n = 21) and (2) the remnant of the MUCL (group A, n = 18). Bone tunnel characteristics and changes were evaluated by computed tomography (CT) at 3 and 9 months postoperatively. Outcome measures consisted of the visual analog scale, range of motion (ROM), the Conway scale, and the presence of ulnar nerve irritation postoperatively. RESULTS: The mean diameter of the humeral entry was 4.0 mm (range, 3.4-5.1 mm) on the first CT scan, which increased to 5.5 mm (range, 3.2-7.2 mm) on the follow-up CT scan (P < .001). The mean diameter of the ulnar tunnel was 2.8 mm (range, 1.1-3.3 mm) on the first CT scan, which decreased to 1.6 mm (range, 0-4.3 mm) on the follow-up CT scan (P < .001). The between group comparison revealed no differences in the changes in the diameter of the humeral and ulnar tunnels. A statistically significant correlation was not found between athletic performance measured by the Conway scale and the radiologic changes on CT evaluation (P = .182). Group A showed improvement in extension from 7 degrees preoperatively to 1 degrees postoperatively (P < .001) and in flexion from 126 degrees preoperatively to 136 degrees postoperatively (P < .001), while group NA did not achieve statistical significance in ROM improvement after the operation. CONCLUSIONS: Humeral tunnel widening was commonly observed, while the ulnar tunnel was maintained or became narrowed conversely. The humeral tunnel placements did not affect tunnel changes after the surgical procedure; however, MUCL reconstruction with the anatomic location of the humeral tunnel yielded substantial improvement in elbow ROM. PMID- 29339064 TI - Factors Associated With Early Graft Detachment in Primary Descemet Membrane Endothelial Keratoplasty. AB - PURPOSE: To evaluate the risk factors for early graft detachment in Descemet membrane endothelial keratoplasty (DMEK). DESIGN: Case-control study. METHODS: Participants: A total of 173 donor corneas and 173 eyes of the patients following DMEK or DMEK in combination with phacoemulsification and intraocular lens implantation were included. INTERVENTION: Pre-stripped DMEK grafts were transplanted using pull-through technique. At the end of surgery, the anterior chamber was filled with air, which was removed 3 hours later only if pupillary block was suspected. Rebubbling was performed in all cases with graft detachment, independently of its extension, as documented by means of anterior segment optical coherence tomography. The donor characteristics were collected from the eye bank database and matched with the recipient database. MAIN OUTCOME MEASURES: Donor and recipient characteristics affecting graft detachment using univariate and multivariate analysis. RESULTS: The combination of DMEK with cataract removal and IOL implantation (odds ratio [OR] = 5.31, 95% confidence interval [CI] 2.03 13.86, P < .002) and air fill of <=75% of anterior chamber height at 2-3 hours postoperatively (OR = 2.66, 95% CI 1.12-6.34, P = .027) were found to be independent risk factors for postoperative graft detachment. CONCLUSIONS: Cataract removal at the time of DMEK is a risk factor for early graft detachment and therefore sequential surgery may be preferred over combined surgery in an attempt at minimizing rebubbling. Air level in the anterior chamber should be monitored and maintained above 75% in the early hours following surgery. PMID- 29339065 TI - Accommodative Esotropia Treatment Plan Utilizing Simultaneous Strabismus Surgery and Photorefractive Keratectomy. AB - PURPOSE: Accommodative esotropia is a common cause of acquired esotropia. Pathogenesis varies among patients but usually includes excessive hyperopia and a high accommodative convergence/accommodation ratio or tight medial recti. The present study reviews an individualized treatment plan combining photorefractive keratectomy (PRK) and strabismus surgery to correct these problems. DESIGN: This study is a retrospective, interventional case series. METHODS: Records for 15 patients who were treated for accommodative esotropia were reviewed. Patient ages ranged from 11 to 19 years. PRK and strabismus surgery were performed on 11 patients, and PRK only on 4 patients. The goal was to create a physiologic refractive error, good visual acuity (VA), and straight eyes without correction. RESULTS: All patients were spectacle free at 6-month follow-up. Twenty-four of 30 eyes had VA equal to preoperative VA without correction. Three eyes had a 1-line reduction and 2-line reduction in VA. The alignment results were +/-10 prism diopters in 13 of 15 patients. Spherical refractive outcomes were 18 of 30 eyes within 1 diopter (D) of target and 12 of 30 eyes within 2 D of target. Astigmatism refractive outcomes were 21 of 30 eyes <1 D, 7 eyes 1-2 D, and 2 eyes >2 D. Two patients complained of halos at night, and 1 patient had peripheral corneal haze. CONCLUSION: Simultaneous PRK and strabismus surgery is safe and effective in treating accommodative esotropia. An individualized treatment plan can result in a physiologic refractive error, good VA, and a spectacle-free existence. PMID- 29339063 TI - Evolution of Intravitreal Therapy for Retinal Diseases-From CMV to CNV: The LXXIV Edward Jackson Memorial Lecture. AB - PURPOSE: To present the evolution of intravitreal therapy for retinal diseases and its impact on clinical practice. DESIGN: Retrospective literature review and personal perspective. METHODS: Retrospective literature review and personal perspective. RESULTS: Pharmacotherapeutic advances in retinal disease have been remarkable over the last 25 years. Almost all of the new drugs developed have required intravitreal administration to be highly effective, leading to an exponential increase in the annual number of intravitreal injections given. The use of intravitreal antibiotic injections to treat endophthalmitis, usually on a one-time basis, first familiarized ophthalmologists with this method of drug delivery. Ganciclovir was the first widely available, relatively inexpensive compounded drug that was used for repeat intravitreal injection to treat a chronic retinal disease, followed by triamcinolone for diabetic macular edema and bevacizumab for neovascular age-related macular degeneration. Ganciclovir was formulated for sustained-release drug delivery to avoid frequent intravitreal injections, a goal that has been more elusive for anti-VEGF drugs. Political obstacles encountered while conducting some of the trials to evaluate these treatments were substantial. Addressing the issues they raised led to important national policy changes that will impact the conduct of future clinical trials. The first comparative efficacy trial of intravitreal therapies was the Comparison of AMD Treatments Trials (CATT). The primary results from CATT and the many publications that followed continue to shape the use of intravitreal therapy today. CONCLUSION: Intravitreal therapy has proven highly effective for the treatment of many retinal diseases. The treatment burden for patients from numerous injections, the cost to health care systems, and the impact on workflows in clinical practice have been substantial. Efforts to develop effective intravitreal therapies with reduced treatment burden and cost are ongoing. PMID- 29339066 TI - Apolipoprotein A-I: A favorable prognostic marker in infective endocarditis. AB - BACKGROUND: Decreased apolipoprotein A-I (apoA-I) and high-density lipoprotein cholesterol (HDL-C) are common in inflammation and sepsis. No study with a large sample size has been performed to investigate the prognostic value of apoA-I or HDL-C in infective endocarditis (IE). OBJECTIVE: The present study aimed to explore the prognostic value of apoA-I and HDL-C for adverse outcomes in IE patients. METHODS: Patients with a definite diagnosis of IE between January 2009 and July 2015 were enrolled and divided into 3 groups according to their apoA-I tertiles at admission. Univariate and multivariate analyses were performed to evaluate the relationship of apoA-I and HDL-C with clinical outcomes. RESULTS: Of the 593 included patients, 40 (6.7%) died in hospital. Patients with lower apoA-I experienced markedly higher rates of in-hospital mortality (10.7%, 7.0%, and 2.5% in tertiles 1-3, respectively; P = .006) and major adverse clinical events (32.5%, 24.1%, and 8.6% in tertiles 1-3, respectively; P < .001). ApoA-I (area under the curve, 0.671; P < .001) and HDL-C (area under the curve, 0.672; P < .001) had predictive values for in-hospital death. Multivariate logistic regression showed that apoA-I <0.90 g/L and HDL-C <0.78 mmol/L were independent risk predictors for in-hospital death. A multivariate Cox proportional hazard analysis revealed that apoA-I (increments of 1 g/L; hazard ratio, 0.36; 95% confidence interval, 0.15-0.87; P = .023) and HDL-C (increments of 1 mmol/L; hazard ratio, 0.38; 95% confidence interval, 0.18-0.83; P = .015) were independently associated with long-term mortality. CONCLUSIONS: ApoA-I and HDL-C were inversely associated with adverse IE prognosis. PMID- 29339067 TI - Molecular characterization and function of beta-N-acetylglucosaminidase from ridgetail white prawn Exopalaemon carinicauda. AB - Chitin degradation is catalyzed by a two-component chitinolytic enzyme system, chitinase and beta-N-acetylglucosaminidase (NAGase). In this paper, the full length cDNA sequence encoding NAGase (EcNAG) was obtained from Exopalaemon carinicauda. The deduced amino acid sequence of EcNAG open reading frame (ORF) contained one Glycohydro_20b2 domain and one Glyco_hydro_20 domain. Based on the cDNA sequence, the genomic structure of EcNAG was characterized and it was composed of six exons and five introns. EcNAG mRNA majorly expressed in the hepatopancreas and epidermis. During the molting stages, EcNAG mRNA expression was well-regulated and its expression reached the highest level at the molting stage E. In addition, EcNAG was recombinant expressed in Pichia pastoris and the partial enzymatic characterization of recombinant EcNAG was confirmed. After being challenged with Vibrio parahaemolyticus and Aeromonas hydrophila, the expression of EcNAG was up-regulated significantly at 6 h and reached the peak at 12 h. And then, the expression began to down-regulated and came to the normal level at 72 h. It is helpful to research the relationship between the molt related hormones and chitinlytic enzymes. PMID- 29339068 TI - A new miRNA regulator, miR-672, reduces cardiac hypertrophy by inhibiting JUN expression. AB - Cardiac hypertrophy is one of the initial symptoms of many heart diseases. We found that miR-672-5p may participate in the regulation of heart disease development in mouse, but the association between miR-672-5p and cardiac hypertrophy remains unclear. In the present study, we found that the abundance of miR-672-5p decreased in hypertrophic cardiomyocytes induced by phenylephrine, angiotensin II (Ang II) and insulin-like growth factor 1. Putative target genes of miR-672-5p were identified using four pipelines, miRWalk, miRanda, RNA22 and Targetscan, and a total of 834 genes were predicted by all four pipelines. Among these target genes, 98 were associated with the development of heart disease. PPI networks showed that the Jun proto-oncogene product (JUN), a subunit of the AP-1 transcription factor, had the highest node degree, and it was defined as the hub gene of the PPI networks. Luciferase assays showed that miR-672-5p bound to the 3' UTR of the JUN gene and decreased luciferase activity, indicating that JUN is a target of miR-672-5p. Finally, we found that increasing the abundance of miR 672-5p in cardiomyocytes controlled the relative cell area in Ang II-stimulated hypertrophic cardiomyocytes. Correspondingly, the abundance of JUN, a target of miR-672-5p, was decreased in hypertrophic cardiomyocytes on both mRNA and protein levels, implying that miR-672-5p had suppressive effects on cardiac hypertrophy through regulating the expression of Jun in cardiomyocytes. PMID- 29339069 TI - Multiple homologous genes knockout (KO) by CRISPR/Cas9 system in rabbit. AB - The CRISPR/Cas9 system is a highly efficient and convenient genome editing tool, which has been widely used for single or multiple gene mutation in a variety of organisms. Disruption of multiple homologous genes, which have similar DNA sequences and gene function, is required for the study of the desired phenotype. In this study, to test whether the CRISPR/Cas9 system works on the mutation of multiple homologous genes, a single guide RNA (sgRNA) targeting three fucosyltransferases encoding genes (FUT1, FUT2 and SEC1) was designed. As expected, triple gene mutation of FUT1, FUT2 and SEC1 could be achieved simultaneously via a sgRNA mediated CRISPR/Cas9 system. Besides, significantly reduced serum fucosyltransferases enzymes activity was also determined in those triple gene mutation rabbits. Thus, we provide the first evidence that multiple homologous genes knockout (KO) could be achieved efficiently by a sgRNA mediated CRISPR/Cas9 system in mammals, which could facilitate the genotype to phenotype studies of homologous genes in future. PMID- 29339070 TI - Involvement of interferon regulatory factor 3 from the barbel chub Squaliobarbus curriculus in the immune response against grass carp reovirus. AB - The barbel chub Squaliobarbus curriculus is an important commercial fish species in China, and has shown significant resistance to grass carp reovirus (GCRV). In this study, the cDNA sequence of interferon regulatory factors 3 (IRF3) from Squaliobarbus curriculus, designated as ScIRF3, was cloned, and its effect against GCRV was investigated. The full-length 1837 base pair (bp) cDNA of ScIRF3 contained a complete open reading frame of 1374 bp and encoded a putative polypeptide of 457 amino acid residues. The ScIRF3 protein contained conserved domains, including an N-terminal DNA-binding domain, a C-terminal IRF association domain, and a serine-rich domain. Phylogenetic analysis showed that ScIRF3 was closely clustered with IRF3s from Carassius auratus and Ctenopharyngodon idellus. Quantitative real-time polymerase chain reaction analysis showed that the expression levels of ScIRF3 in Squaliobarbus curriculus were the highest in the spleen and lowest in the muscle. After GCRV infection, expression levels of both ScIRF3 and type I interferon (IFN) were initially up-regulated and subsequently down-regulated in the spleen and intestine. Correlation analysis showed that the expression level of type I IFN is significantly positively correlated with that of ScIRF3 (Pearson correlation coefficient: 0.883, P: 0.004) in the intestine. The expression level of type I IFN was also significantly up-regulated and the GCRV titer was significantly decreased (P < .05) in GCRV-infected ScIRF3 overexpressing Ctenopharyngodon idellus kidney cells. These results indicate that ScIRF3 may play a role in the type I IFN immune response against GCRV in Squaliobarbus curriculus and can also inhibit GCRV replication in Ctenopharyngodon idellus kidney cells. PMID- 29339071 TI - MiR-155-5p promotes fibroblast cell proliferation and inhibits FOXO signaling pathway in vulvar lichen sclerosis by targeting FOXO3 and CDKN1B. AB - Vulvar lichen sclerosis (VLS) is a chronic inflammatory skin disorder. Evidence is accumulating that microRNAs (miRNAs) exert crucial roles in initiation and development of a wide range of human diseases. MiR-155-5p has been frequently reported to be implicated in the tumorigenesis and progression of multiple types of cancers, however, its biological role in VLS remains unclear. This study aimed to explore the role of miR-155-5p in VLS and clarify the potential molecular mechanisms involved. In the present study, miR-155-5p was observed to be significantly upregulated in VLS tissues. Functional studies showed that miR-155 5p facilitated cell proliferation, accelerated cell cycle progression and inhibited forkhead box O (FOXO) signaling pathway in fibroblast cells. Mechanical studies demonstrated that miR-155-5p exerted its promoting effects on fibroblast cell proliferation via targeting both forkhead box O3 (FOXO3) and cyclin dependent kinase inhibitor 1B (CDKN1B). Besides, Pearson's correlation analysis revealed that miR-155-5p expression was negatively correlated with the mRNA expression of FOXO3 and CDKN1B in VLS tissues. Taken together, our results indicate that miR-155-5p promotes fibroblast cell proliferation and inhibits FOXO signaling pathway by negative modulation of both FOXO3 and CDKN1B in VLS, and that miR-155-5p may be used to be a potential therapeutic target for VLS. PMID- 29339072 TI - Deep sequencing of a QTL-rich region spanning 128-136Mbp of pig chromosome 15. AB - The present study shows the characterization of the chromosome 15 (SSC15) region that is highly rich in quantitative traits loci (QTLs) associated with pork quality, growth performance, fat and meat carcass contents. The analytic method that was utilized included targeted enrichment DNA sequencing and RNA hybridisation probes. The research included two pig breeds (Pulawska and Polish Landrace) that are significantly different in terms of carcass and meat quality features. Filtered sequences were aligned to the Sscrofa10.2 assembly genome with the STAR aligner and GATK HaplotypeCaller was used for identified gene variants in SSC15 region. In Pulawska pigs, which were characterized by high meat quality, mutations were predominantly observed in non-coding regions such as introns and intergenic regions. The highest over 50% frequencies of alternate alleles were identified in the introns of TNS1, VIL1 and USP37 genes. In the upstream gene regions of the Polish Landrace pigs, were observed more mutations than in the upstream gene regions of Pulawska. The present study showed interesting gene variant panel that could be analyzed in the further association studies in order to understand the impact on important productive pig traits. PMID- 29339073 TI - The human GCOM1 complex gene interacts with the NMDA receptor and internexin alpha. AB - The known functions of the human GCOM1 complex hub gene include transcription elongation and the intercalated disk of cardiac myocytes. However, in all likelihood, the gene's most interesting, and thus far least understood, roles will be found in the central nervous system. To investigate the functions of the GCOM1 gene in the CNS, we have cloned human and rat brain cDNAs encoding novel, 105 kDa GCOM1 combined (Gcom) proteins, designated Gcom15, and identified a new group of GCOM1 interacting genes, termed Gints, from yeast two-hybrid (Y2H) screens. We showed that Gcom15 interacts with the NR1 subunit of the NMDA receptor by co-expression in heterologous cells, in which we observed bi directional co-immunoprecipitation of human Gcom15 and murine NR1. Our Y2H screens revealed 27 novel GCOM1 interacting genes, many of which are synaptic proteins and/or play roles in neurologic diseases. Finally, we showed, using rat brain protein preparations, that the Gint internexin-alpha (INA), a known interactor of the NMDAR, co-IPs with GCOM1 proteins, suggesting a GCOM1-GRIN1-INA interaction and a novel pathway that may be relevant to neuroprotection. PMID- 29339074 TI - Identification and characterization of a doublesex gene which regulates the expression of insulin-like androgenic gland hormone in Fenneropenaeus chinensis. AB - The doublesex and its homologue genes are important regulators of sexual differentiation which are conserved among animal kingdom. In the present study, we reported a doublesex gene (designated as FcDsx) identified from the Chinese shrimp F. chinensis. The gene structure, nucleotide and deduced amino acid sequences of FcDsx were characterized. The results showed that the deduced amino acid sequence of FcDsx had the common features of Dsx proteins, including a doublesex/male abnormal 3 (DM) domain, an oligomerization domain and a predicted monopartite nuclear localization signal. The expression patterns of FcDsx in different tissues and developmental stages were detected. FcDsx exhibited a sex biased expression patterns in different tissues and its expression level increased along with developmental stages. In addition, its regulation on the expression of FcIAG, a gene important for sexual differentiation of male crustacean, was also analyzed. Putative Dsx binding site was identified on the promoter region of FcIAG and knockdown of FcDsx could reduce the expression of FcIAG, which suggested that FcDsx might be the upstream regulator of FcIAG. The present data indicated that FcDsx gene might involve in shrimp sexual differentiation process. PMID- 29339075 TI - Up-regulated lncRNA-MSX2P1 promotes the growth of IL-22-stimulated keratinocytes by inhibiting miR-6731-5p and activating S100A7. AB - Competitive endogenous RNAs (ceRNAs) regulate RNA transcripts by competing for shared miRNAs and play critical roles in disease development. Psoriasis is a long lasting, recurring chronic inflammatory skin disease characterized by hyperproliferation of keratinocytes. The keratinocyte response is triggered by the activation of inflammatory cytokines, like interleukin-22 (IL-22). We used lncRNA array analysis to detect differentially expressed lncRNAs in skin (HaCaT) cells treated with or without IL-22. We used hematoxylin and eosin (H&E) staining to determine the pathological changes in skin cells and immunohistochemistry to evaluate the expression of S100A7. We used qRT-PCR and Western blotting to detect the expression levels of MSX2P1 and S100A7. We down-regulated the expression of MSX2P1 by infecting with lentiviral-vector shRNA. We measured cell proliferation, cell cycle status, and apoptosis by the CCK-8 assay, flow cytometry, and Annexin V-FITC/PI staining, respectively. In addition, we used the luciferase reporter gene assay to determine the relationships between MSX2P1 or miR-6731-5p and S100A7, respectively. LncRNA array analysis revealed that 103 lncRNAs were up regulated and 51 were down-regulated. Furthermore, qRT-PCR showed that the mRNAs levels of MSX2P1 was significantly altered in HaCaT cells treated with IL-22, compared with control cells; and MSX2P1 was mainly in the cytoplasm. Based on the IL-22-stimulated lncRNA-associated ceRNA network, we selected MSX2P1-miR-6731-5p S100A7 for further study. H&E staining exhibited characteristic features specific to psoriatic lesions. Immunohistochemistry demonstrated significantly increased expression levels of S100A7 in psoriatic lesions, compared with normal skin tissue. We observed a positive correlation between lncRNA-MSX2P1 expression and S100A7 expression. In addition, miR-6731-5p suppressed proliferation, accelerated apoptosis in IL-22-stimulated keratinocytes, and decreased the expressions of S100A7, IL-12beta, IL-23, HLA-C, CCHCR1, TNF-alpha, and NF-kappaB proteins. Our data demonstrated that MSX2P1 facilitate the progression and growth of IL-22 stimulated keratinocytes by inhibiting miR-6731-5p and activating S100A7. We speculate that the biological network of MSX2P1-miR-6731-5p-S100A7 is a potential novel therapeutic target for the future treatment of psoriasis. PMID- 29339076 TI - Inhibition of miR-361-5p suppressed pulmonary artery smooth muscle cell survival and migration by targeting ABCA1 and inhibiting the JAK2/STAT3 pathway. AB - MicroRNAs play a crucial role in the progression of pulmonary arterial hypertension (PAH). The aim of this study was to investigate the effect of miR 361-5p on the proliferation, migration and apoptosis of pulmonary artery smooth muscle cells (PASMCs) that under the treatment of hypoxia and explore the underlying mechanisms. The results proved that hypoxia noticeably up-regulated the expression of miR-361-5p in PASMCs in comparison to the normoxia-treated cells, while TNF-alpha and IL-6 stimulation had no obvious effects on miR-361-5p level. Hypoxia induced miR-361-5p elevation in a HIF-1alpha-dependent manner. Inhibition of miR-361-5p dramatically inhibited hypoxia-induced cell proliferation and migration. miR-361-5p inhibition also rescued hypoxia exposure caused suppression of PASMCs apoptosis. In addition, the results showed that ABCA1 was a direct target of miR-361-5p and was down-regulated in hypoxia-induced PASMCs. Hypoxia and TNF-alpha or IL-6 stimulation significantly inhibited ABCA1 expression. In addition, overexpression of ABCA1 enhanced the effect of miR-361 5p on hPASMCs. Furthermore, the inhibition of miR-361-5p significantly down regulated the expression level of p-JAK2 and p-STAT3. In conclusion, it may suggest that the suppression of miR-361-5p suppressed PASMC survival and migration by targeting ABCA1 and inhibiting the JAK2/STAT3 pathway. PMID- 29339077 TI - How context features modulate the involvement of the working memory system during discourse comprehension. AB - Using functional magnetic resonance imaging (fMRI), we investigated the effects of context features on the involvement of the working memory (WM) system during discourse comprehension. During the fMRI scan, participants were asked to read two-sentence discourses in which the topic of the second sentence was either maintained, or was shifted from, the topic of the first. Changes in the level of coherence between the two sentences as well as context length were also investigated across discourse items. The WM system was identified with a verbal N back task. Analysis of the reading comprehension task revealed that within the WM system, stronger activation in the left inferior frontal gyrus corresponded with increased bridging coherence demands between sentences, while greater activation in the left inferior and middle frontal gyri, bilateral superior frontal gyri, and bilateral inferior parietal lobules corresponded with increased context length. Topic variation showed no effect on activation of the WM system. These results provide new insights into understanding how different levels of context features modulate activation of the subcomponents of the WM system and indicate a role for the left inferior frontal gyrus as a core component of the WM system supporting discourse processing. PMID- 29339078 TI - Analytical and pre-analytical performance characteristics of a novel cartridge type blood gas analyzer for point-of-care and laboratory testing. AB - BACKGROUND: Point-of-care blood gas test results may benefit therapeutic decision making by their immediate impact on patient care. We evaluated the (pre )analytical performance of a novel cartridge-type blood gas analyzer, the GEM Premier 5000 (Werfen), for the determination of pH, partial carbon dioxide pressure (pCO2), partial oxygen pressure (pO2), sodium (Na+), potassium (K+), chloride (Cl-), ionized calcium (iCa2+), glucose, lactate, and total hemoglobin (tHb). METHODS: Total imprecision was estimated according to the CLSI EP5-A2 protocol. The estimated total error was calculated based on the mean of the range claimed by the manufacturer. Based on the CLSI EP9-A2 evaluation protocol, a method comparison with the Siemens RapidPoint 500 and Abbott i-STAT CG8+ was performed. Obtained data were compared against preset quality specifications. Interference of potential pre-analytical confounders on co-oximetry and electrolyte concentrations were studied. RESULTS: The analytical performance was acceptable for all parameters tested. Method comparison demonstrated good agreement to the RapidPoint 500 and i-STAT CG8+, except for some parameters (RapidPoint 500: pCO2, K+, lactate and tHb; i-STAT CG8+: pO2, Na+, iCa2+ and tHb) for which significant differences between analyzers were recorded. No interference of lipemia or methylene blue on CO-oximetry results was found. On the contrary, significant interference for benzalkonium and hemolysis on electrolyte measurements were found, for which the user is notified by an interferent specific flag. CONCLUSION: Identification of sample errors from pre analytical sources, such as interferences and automatic corrective actions, along with the analytical performance, ease of use and low maintenance time of the instrument, makes the evaluated instrument a suitable blood gas analyzer for both POCT and laboratory use. PMID- 29339079 TI - Diagnostic Usefulness of Combination of Diffusion-weighted Imaging and T2WI, Including Apparent Diffusion Coefficient in Breast Lesions: Assessment of Histologic Grade. AB - PURPOSE: This study aimed to compare the diagnostic values of a combination of diffusion-weighted imaging and T2-weighted imaging (DWI-T2WI) with dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI), and to evaluate the correlation of DWI with the histologic grade in breast cancer. MATERIALS AND METHODS: This study evaluated a total of 169 breast lesions from 136 patients who underwent both DCE-MRI and DWI (b value, 1000s/mm2). Morphologic and kinetic analyses for DCE-MRI were classified according to the Breast Imaging-Reporting and Data System. For the DWI-T2WI set, a DWI-T2WI score for lesion characterization that compared signal intensity of DWI and T2WI (benign: DWI-T2WI score of 1, 2; malignant: DWI-T2WI score of 3, 4, 5) was used. The diagnostic values of DCE-MRI, DWI-T2WI set, and combined assessment of DCE and DWI-T2WI were calculated. RESULTS: Of 169 breast lesions, 48 were benign and 121 were malignant (89 invasive ductal carcinoma, 24 ductal carcinoma in situ, 4 invasive lobular carcinoma, 4 mucinous carcinoma). The mean apparent diffusion coefficient (ADC) of invasive ductal carcinoma (0.92 +/- 0.19 * 10-3 mm2/s) and ductal carcinoma in situ (1.11 +/- 0.13 * 10-3 mm2/s) was significantly lower than the value seen in benign lesions (1.36 +/- 0.22 * 10-3 mm2/s). The specificity, positive predictive value (PPV), and accuracy of DWI-T2WI set and combined assessment of DCE and DWI T2WI (specificity, 87.5% and 91.7%; PPV, 94.3% and 96.2%; accuracy, Az = 0.876 and 0.922) were significantly higher than those of the DCE-MRI (specificity, 45.8%; PPV, 81.7%; accuracy, Az = 0.854; P < .05). A low ADC value and the presence of rim enhancement were associated with a higher histologic grade cancer (P < .05). CONCLUSION: Combining DWI, T2WI, and ADC values provides increased accuracy for differentiation between benign and malignant lesions, compared with DCE-MRI. A lower ADC value was associated with a higher histologic grade cancer. PMID- 29339080 TI - Prostate Cancer Disseminated Tumor Cells are Rarely Detected in the Bone Marrow of Patients with Localized Disease Undergoing Radical Prostatectomy across Multiple Rare Cell Detection Platforms. AB - PURPOSE: Prostate circulating tumor cells escape into peripheral blood and enter bone marrow as disseminated tumor cells, representing an early step before conventionally detectable metastasis. It is unclear how frequently this occurs in localized disease and existing detection methods rely on epithelial markers with low specificity and sensitivity. We used multiple methodologies of disseminated tumor cell detection in bone marrow harvested at radical prostatectomy. MATERIALS AND METHODS: Bone marrow was harvested from 208 clinically localized cases, 16 controls and 5 metastatic cases with peripheral blood obtained from 37 metastatic cases. Samples were evaluated at 4 centers with 4 distinct platforms using antibody enrichment with the AdnaTest (Qiagen(r)) or VERSA (versatile exclusion based rare sample analysis), or whole sample interrogation with the RareCyte platform (Seattle, Washington) or HD-SCA (high definition single cell assay) using traditional epithelial markers and prostate specific markers. We investigated the sensitivity and specificity of these markers by evaluating expression levels in control and metastatic cases. RESULTS: EpCAM, NKX3.1 and AR were nonspecifically expressed in controls and in most samples using AdnaTest with no relation to perioperative variables. Only 1 patient with localized disease showed positive results for the prostate specific marker PSA. With the VERSA platform no localized case demonstrated disseminated tumor cells. With the RareCyte and HD-SCA platforms only a single patient had 1 disseminated tumor cell. CONCLUSIONS: Evaluation across multiple platforms revealed that epithelial markers are nonspecific in bone marrow and, thus, not suitable for disseminated tumor cell detection. Using prostate specific markers disseminated tumor cells were typically not detected in patients with localized prostate cancer. PMID- 29339081 TI - Disorder-to-order transitions in the molten globule-like Golgi Reassembly and Stacking Protein. AB - BACKGROUND: Golgi Reassembly and Stacking Proteins (GRASPs) are widely spread among eukaryotic cells (except plants) and are considered as key components in both the stacking of the Golgi cisternae and its lateral connection. Furthermore, GRASPs were also proved essential in the unconventional secretion pathway of several proteins, even though the mechanism remains obscure. It was previously observed that the GRASP homologue in Cryptococcus neoformans has a molten globule like behavior in solution. METHODS: We used circular dichroism, synchrotron radiation circular dichroism and steady-state as well as time-resolved fluorescence. RESULTS: We report the disorder-to-order transition propensities for a native molten globule-like protein in the presence of different mimetics of cell conditions. Changes in the dielectric constant (such as those experienced close to the membrane surface) seem to be the major factor in inducing multiple disorder-to-order transitions in GRASP, which shows very distinct behavior when in conditions that mimic the vicinity of the membrane surface as compared to those found when free in solution. Other folding factors such as molecular crowding, counter ions, pH and phosphorylation exhibit lower or no effect on GRASP secondary structure and/or stability. GENERAL SIGNIFICANCE: To the best of our knowledge, this is the first study focusing on understanding the disorder-to order transitions of a molten globule structure without the need of any mild denaturing condition. A model is also introduced aiming at describing how the cell could manipulate the GRASP sensitivity to changes in the dielectric constant during different cell-cycle periods. PMID- 29339082 TI - Water-mediated interactions enable smooth substrate transport in a bacterial efflux pump. AB - BACKGROUND: Efflux pumps of the Resistance-Nodulation-cell Division superfamily confer multi-drug resistance to Gram-negative bacteria. The most-studied polyspecific transporter belonging to this class is the inner-membrane trimeric antiporter AcrB of Escherichia coli. In previous studies, a functional rotation mechanism was proposed for its functioning, according to which the three monomers undergo concerted conformational changes facilitating the extrusion of substrates. However, the molecular determinants and the energetics of this mechanism still remain unknown, so its feasibility must be proven mechanistically. METHODS: A computational protocol able to mimic the functional rotation mechanism in AcrB was developed. By using multi-bias molecular dynamics simulations we characterized the translocation of the substrate doxorubicin driven by conformational changes of the protein. In addition, we estimated for the first time the free energy profile associated to this process. RESULTS: We provided a molecular view of the process in agreement with experimental data. Moreover, we showed that the conformational changes occurring in AcrB enable the formation of a layer of structured waters on the internal surface of the transport channel. This water layer, in turn, allows for a fairly constant hydration of the substrate, facilitating its diffusion over a smooth free energy profile. CONCLUSIONS: Our findings reveal a new molecular mechanism of polyspecific transport whereby water contributes by screening potentially strong substrate-protein interactions. GENERAL SIGNIFICANCE: We provided a mechanistic understanding of a fundamental process related to multi-drug transport. Our results can help rationalizing the behavior of other polyspecific transporters and designing compounds avoiding extrusion or inhibitors of efflux pumps. PMID- 29339083 TI - miRNA15a regulates insulin signal transduction in the retinal vasculature. AB - We previously reported that tumor necrosis factor alpha (TNFalpha) could inhibit insulin signal transduction in retinal cells. We recently found that miR15a/16 also reduced TNFalpha in retinal endothelial cells (REC) and in vascular specific miR15a/16 knockout mice. Since in silico programs suggested that miR15a could directly bind the insulin receptor, we wanted to determine whether miR15a altered insulin signal transduction. We used a luciferase-based binding assay to determine whether miR15a directly bound the insulin receptor. We then used Western blotting, ELISA, and qPCR to investigate whether miR15a altered insulin signaling proteins in REC and in both miR15a/16 endothelial cell knockout and overexpressing mice. We also treated some REC with resveratrol to determine if resveratrol could increase miR15a expression, since resveratrol is protective to the diabetic retina. We found that miR15a directly bound the 3'UTR of the insulin receptor. Treatment with resveratrol increased miR15a expression in REC grown in high glucose. While total insulin receptor levels were not altered, insulin signal transduction was reduced in REC grown in high glucose and was restored with treatment with resveratrol. miR15a knockout mice had reduced insulin receptor phosphorylation and Akt2 levels, with increased insulin receptor substrate 1 (IRS-1) phosphorylation on serine 307, a site known to inhibit insulin signaling. In contrast, overexpression of miR15a increased insulin signal transduction. Taken together, these data suggest that miR15a binds the insulin receptor and indirectly regulates insulin receptor actions. It also offers an additional mechanism by which resveratrol is protective to the diabetic retina. PMID- 29339084 TI - miR-613 inhibits cell migration and invasion by downregulating Daam1 in triple negative breast cancer. AB - Dishevelled-associated activator of morphogenesis 1 (Daam1) is a formin protein and participates in regulating cell migration of triple-negative breast cancer (TNBC) cells. The specific miRNA targeting Daam1 and mediating cell migration and invasion remains obscure. This experiment investigated the suppressive role of miR-613 in TNBC cells. The luciferase activity of Daam1 3'-untranslated region (3'-UTR) based reporters constructed in HEK-293T and MCF-7 cells suggested that Daam1 was the target gene of miR-613. Overexpressed miR-613 reduced the protein level of Daam1, weakened RhoA activity, and retarded the cell migration, cell invasion and colony formation of TNBC cells. Overexpression of Daam1 or RhoA rescued cell migration and invasion in miR-613-overexpressed TNBC cells, but failed to reverse colony formation. MiR-613 was significantly downregulated in breast cancer tissues compared with that in adjacent normal tissues. This downregulation in TNBC tissues and lymphnode metastatic breast cancer tissues was more obvious than that in non-TNBC tissues and non-metastatic cancer tissues, respectively. MiR-613 weakens the resistance of TNBC cells against paclitaxel rather than adriamycin, cyclophosphamide, docetaxel, and kaempferol. Taken together, miR-613 is involved in cell migration and invasion of TNBC cells via targeting Daam1/RhoA signaling pathway. PMID- 29339085 TI - Wnt5a mediates chronic post-thoracotomy pain by regulating non-canonical pathways, nerve regeneration, and inflammation in rats. AB - As well-characterized ligands involved in neurogenesis, Wnts are emerging as promising targets in pain pathogenesis. Our previous pilot study showed that intrathecal inhibition of Wnt5a, but not Wnts, relieves chronic post-thoracotomy pain (CPTP) in rats. In the present study, we aimed to further explore the regulatory mechanism of Wnt5a in CPTP development. Increased protein levels of Wnt5a, transmembrane receptor Ror2, and activated non-canonical Wnt pathway members were found in the thoracic dorsal root ganglions from postoperative day (POD) 7 to POD 21. However, the levels of canonical Wnt pathway members showed no change by reverse transcriptase-PCR. In addition, elevated nerve regeneration, activated pro-inflammatory factors, and glial cells were detected from POD 7 to POD 21. Furthermore, intrathecal Wnt5a blockade during the early phase (POD 0 to POD 9) significantly increased the pain threshold, and intervention in the late phase (POD 14 to POD 16) alleviated pain; however, the analgesic response was not as effective as that in the early phase. Additionally, early but not late Wnt5a blockade significantly reversed CPTP-induced activation of the non-canonical Wnt pathways, nerve regeneration, and inflammation. In contrast, a Wnt5a agonist decreased the pain threshold in both naive and painless rats. These results suggest that Wnt5a promotes the development of CPTP by activating non-canonical Wnt pathways, nerve regeneration, and inflammation. Therapeutic intervention by targeting Wnt5a may represent an effective strategy for preventing and treating CPTP. PMID- 29339086 TI - The IL-6/STAT3 pathway regulates adhesion molecules and cytoskeleton of endothelial cells in thromboangiitis obliterans. AB - Thromboangiitis obliterans (TAO) (also known as Buerger's disease) is an inflammatory vascular disease that predominantly affects small- and medium-sized blood vessels of extremities. Endothelial cells play critical roles in the initiation and progression of this disease, but the underlying mechanisms remain unclear. In the present study, we demonstrate that patients with TAO had significantly higher levels of interleukin-6 (IL-6), soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) in their plasmas, and the involved arterial tissues expressed higher levels of phosphorylated signal transducer and activator of transcription 3 (p STAT3), ICAM-1 and VCAM-1. In exploring the molecular mechanisms with human aortic endothelial cells (HAECs), we found that recombinant IL-6 activated the STAT3 pathway, leading to the upregulation and overproduction of ICAM-1 and VCAM 1. RhoA (Ras homolog family member A), eNOS (endothelial nitric oxide synthase) and MMP-9 (matrix metalloproteinase-9) participated in this cellular signaling, and their interaction regulated the expression of ICAM-1 and VCAM-1. The activated STAT3 pathway by IL-6 also modulated the cytoskeleton of HAECs by regulating phosphorylation of focal adhesion kinase (FAK) and acetylation of alpha-tubulin through interplaying with RhoA. In summary, the present results indicate that activation of the IL-6/STAT3 pathway contributes to the pathogenesis of TAO by regulating cellular adhesion molecules and cytoskeleton of vascular endothelial cells, suggesting that targeting this pathway may provide a potential approach for the management of TAO. PMID- 29339087 TI - Erratum to: "Spasmodic torticollis after orthognathic surgery" [J. Stomatol. Oral Maxillofac. Surg. 118 (2017) 393-6]. PMID- 29339088 TI - Retinal neuronal cell loss prevents abnormal retinal vascular growth in a rat model of retinopathy of prematurity. AB - A short-term blockade of the vascular endothelial growth factor (VEGF)-mediated pathway in neonatal rats results in formation of severe retinopathy of prematurity (ROP)-like retinal blood vessels. The present study aimed to examine the role of retinal neurons in the formation of abnormal retinal blood vessels. Newborn rats were treated subcutaneously with the VEGF receptor tyrosine kinase inhibitor, KRN633 (10 mg/kg), or its vehicle (0.5% methylcellulose in water) on postnatal day (P) 7 and P8. To induce excitotoxic loss of retinal neurons, N methyl-D-aspartic acid (NMDA) was injected into the vitreous chamber of the eye on P9. Changes in retinal morphology, blood vessels, and proliferative status of vascular cells were evaluated on P11 and P14. The number of cells in the ganglion cell layer and the thickness of the inner plexiform layer and inner nuclear layer were significantly decreased 2 days (P11) after NMDA treatment. The pattern and degree of NMDA-induced changes in retinal morphology were similar between vehicle treated (control) and KRN633-treated (ROP) rats. In ROP rats, increases in the density of capillaries, the tortuosity index of arteries, and the proliferating vascular cells were observed on P14. The expansion of the endothelial cell network was prevented, and the capillary density and the number of proliferating cells were reduced in NMDA-treated retinas of both control and ROP rats. Following NMDA-induced neuronal cell loss, no ROP-like blood vessels were observed in the retinas. These results suggest that retinal neurons play an important role in the formation of normal and ROP-like retinal blood vessels. PMID- 29339089 TI - Concentration gradient of noradrenaline from the periphery to the centre of the cornea - A clue to its origin. AB - We set out to demonstrate that the major source of corneal catecholamines is its neuronal release from intrinsic sympathetic nerves rather than circulating or non neuronal local production. Three concentric segments (central, intermediate, peripheral) were obtained by double trephination (9.5-7.25 mm) performed on corneas harvested from 3 to 4 month old rabbits and human corneas rejected for transplantation, along with aqueous humour, full iris tissue and blood samples. Endogenous catecholamines were quantified by high pressure liquid chromatography with electrochemical detection (HPLC-ED), and comparison with the uptake of radio labelled noradrenaline (3H-NA) before and after incubation with cocaine was performed. Results are means +/- SEM. Ratios between enzymatic end products and their substrates were calculated. ANOVA was used for statistical analysis. Catecholamine levels were found to be about one log unit lower in the human cornea than in the rabbit cornea. In the rabbit, dopamine (DA), noradrenaline (NA) and adrenaline (AD) were identified by HPLC-ED in all corneal segments, whilst in the human cornea NA was identified only in the intermediate and peripheral corneal segments, and no AD was found. In the iris and aqueous humour only DA and NA were present. A concentration gradient for NA decreasing from the periphery to the centre of the cornea was identified in both species (NA/DA ratio higher than 1 in the periphery; low AD/NA ratio in all corneal segments), but not for DA or AD. After incubation with 3H-NA all corneal segments and iris tissue showed loading with the aforementioned gradient being reproduced, and a decrease in 3H-NA loading after cocaine was significant only in the peripheral corneal segment and in the iris of both species. Reduction in 3H-NA loading after incubation with cocaine shows that NA in the cornea is mostly of neuronal origin and demonstrates the presence of functional sympathetic nerves (also expectedly found in the iris); the existence of a gradient both for 3H-NA loading and loading reduction after cocaine points to a higher density of fibres in the peripheral cornea. PMID- 29339090 TI - Patched 1 Expression Correlates with Biochemical Relapse in High-Risk Prostate Cancer Patients. AB - There is an unmet clinical need for adequate biomarkers to aid risk stratification and management of prostate cancer (PCa) patients. Even within the high-risk PCa category, not all patients will invariably have a poor prognosis, and improved stratification of this heterogeneous group is needed. In this context, components of the hedgehog (Hh) pathway may have promise as biomarkers, because the available evidence suggests increased Hh pathway activity may confer a poorer outcome in advanced and castrate-resistant PCa. In this study, potential associations between Hh pathway protein expression and clinicopathological factors, including time to biochemical recurrence (BCR), were investigated using a tissue microarray constructed from benign and malignant prostate samples from 75 predominantly high-risk PCa patients who underwent radical prostatectomy. Hh signaling activity was found to differ between benign and malignant prostate tissue, with a greater amount of active Hh signaling present in malignant than benign prostate epithelium. High expression of Patched 1 in malignant prostate epithelium was found to be an independent predictor of BCR in high-risk PCa patients. Glioma-associated oncogene 1 may potentially represent a clinically useful biomarker of an aggressive tumor phenotype. Evaluation of Hh signaling activity in PCa patients may be useful for risk stratification, and epithelial Patched 1 expression, in particular, may be a prognostic marker for BCR in high risk PCa patients. PMID- 29339092 TI - Structural and biochemical analyses reveal ubiquitin C-terminal hydrolase-L1 as a specific client of the peroxiredoxin II chaperone. AB - Peroxiredoxins (Prxs) play dual roles as both thiol-peroxidases and molecular chaperones. Peroxidase activity enables various intracellular functions, however, the physiological roles of Prxs as chaperones are not well established. To study the chaperoning function of Prx, we previously sought to identify heat-induced Prx-binding proteins as the clients of a Prx chaperone. By using His-tagged Prx I as a bait, we separated ubiquitin C-terminal hydrolase-L1 (UCH-L1) as a heat induced Prx I binding protein from rat brain crude extracts. Protein complex immunoprecipitation with HeLa cell lysates revealed that both Prx I and Prx II interact with UCH-L1. However, Prx II interacted considerably more favorably with UCH-L1 than Prx I. Prx II exhibited more effective molecular chaperone activity than Prx I when UCH-L1 was the client. Prx II interacted with UCH-L1 through its C-terminal region to protect UCH-L1 from thermal or oxidative inactivation. We found that chaperoning via interaction through C-terminal region (specific-client chaperoning) is more efficient than that involving oligomeric structural change (general-client chaperoning). Prx II binds either thermally or oxidatively unfolding early intermediates of specific clients and thereby shifted the equilibrium towards their native state. We conclude that this chaperoning mechanism provides a very effective and selective chaperoning activity. PMID- 29339093 TI - The proteoglycan biglycan mediates inflammatory response by activating TLR-4 in human chondrocytes: Inhibition by specific siRNA and high polymerized Hyaluronan. AB - Cartilage degeneration are hallmarks of wear, tear, mechanical and inflammatory damage of the joint cartilage. Tissue degradation as well as compromising the integrity and function of the organ, produces different intermediates, directly able to stimulate further inflammatory effect, therefore, amplifying the inflammation response. Biglycan is a soluble component of the extracellular matrix that is released during tissue injury. It has been reported that released biglycan is an endogenous ligand for TLR-2/4 in some cell type. We studied the role of biglycan in an experimental model of biglycan-induced inflammatory response in human chondrocytes and the effect of high polymerized HA on reducing its activity. Exposition of chondrocytes to LPS generated cell injury, including high levels of biglycan. Chondrocyte treatment with biglycan produces a high mRNA expression of several detrimental inflammation mediators such as IL-1beta, IL-6, MMP-13, and IL-17, as well as NF-kB and TLR-4 activation. Administration of high polymerized HA to chondrocytes exposed to biglycan was able to attenuate the inflammatory response by decreasing the expression of the inflammatory mediators. Involvement of the TLR-4 in the mediation of the biglycan action was confirmed using a specific silent agent (siRNA). Taken together, these data could be used to develop new anti-inflammatory approaches. PMID- 29339095 TI - Patterning the gastrointestinal epithelium to confer regional-specific functions. AB - The gastrointestinal (GI) tract, in simplest terms, can be described as an epithelial-lined muscular tube extending along the cephalocaudal axis from the oral cavity to the anus. Although the general architecture of the GI tract organs is conserved from end to end, the presence of different epithelial tissue structures and unique epithelial cell types within each organ enables each to perform the distinct digestive functions required for efficient nutrient assimilation. Spatiotemporal regulation of signaling pathways and downstream transcription factors controls GI epithelial morphogenesis during development to confer essential regional-specific epithelial structures and functions. Here, we discuss the fundamental functions of each GI tract organ and summarize the diversity of epithelial structures present along the cephalocaudal axis of the GI tract. Next, we discuss findings, primarily from genetic mouse models, that have defined the roles of key transcription factors during epithelial morphogenesis, including p63, SOX2, SOX15, GATA4, GATA6, HNF4A, and HNF4G. Additionally, we examine how the Hedgehog, WNT, and BMP signaling pathways contribute to defining unique epithelial features along the cephalocaudal axis of the GI tract. Lastly, we examine the molecular mechanisms controlling regionalized cytodifferentiation of organ-specific epithelial cell types within the GI tract, concentrating on the stomach and small intestine. The delineation of GI epithelial patterning mechanisms in mice has provided fundamental knowledge to guide the development and refinement of three-dimensional GI organotypic culture models such as those derived from directed differentiation of human pluripotent stem cells and those derived directly from human tissue samples. Continued examination of these pathways will undoubtedly provide vital insights into the mechanisms of GI development and disease and may afford new avenues for innovative tissue engineering and personalized medicine approaches to treating GI diseases. PMID- 29339096 TI - A new option for remission induction in acute myeloid leukaemia. PMID- 29339091 TI - An energetic view of stress: Focus on mitochondria. AB - Energy is required to sustain life and enable stress adaptation. At the cellular level, energy is largely derived from mitochondria - unique multifunctional organelles with their own genome. Four main elements connect mitochondria to stress: (1) Energy is required at the molecular, (epi)genetic, cellular, organellar, and systemic levels to sustain components of stress responses; (2) Glucocorticoids and other steroid hormones are produced and metabolized by mitochondria; (3) Reciprocally, mitochondria respond to neuroendocrine and metabolic stress mediators; and (4) Experimentally manipulating mitochondrial functions alters physiological and behavioral responses to psychological stress. Thus, mitochondria are endocrine organelles that provide both the energy and signals that enable and direct stress adaptation. Neural circuits regulating social behavior - as well as psychopathological processes - are also influenced by mitochondrial energetics. An integrative view of stress as an energy-driven process opens new opportunities to study mechanisms of adaptation and regulation across the lifespan. PMID- 29339097 TI - Safety and preliminary efficacy of venetoclax with decitabine or azacitidine in elderly patients with previously untreated acute myeloid leukaemia: a non randomised, open-label, phase 1b study. AB - BACKGROUND: Elderly patients (aged >=65 years) with acute myeloid leukaemia have poor outcomes and no effective standard-of-care therapy exists. Treatment with hypomethylating agents such as azacitidine and decitabine is common, but responses are modest and typically short-lived. The oral anti-apoptotic B-cell lymphoma 2 protein inhibitor, venetoclax, has shown promising single-agent activity in patients with relapsed or refractory acute myeloid leukaemia and preclinical data suggested synergy between hypomethylating agents and venetoclax, which led to this combination phase 1b study. METHODS: Previously untreated patients aged 65 years and over with acute myeloid leukaemia who were ineligible for standard induction therapy were enrolled into this non-randomised, open label, phase 1b study. Patients were required to have an Eastern Cooperative Oncology Group performance status of 0-2 and either intermediate-risk or poor risk cytogenetics. Patients were enrolled into one of three groups for the dose escalation phase of this study: group A (venetoclax and intravenous decitabine 20 mg/m2 [days 1-5 of each 28-day cycle]), group B (venetoclax and subcutaneous or intravenous azacitidine 75 mg/m2 [days 1-7 of each 28-day cycle]), and group C (a venetoclax and decitabine substudy with the oral CYP3A inhibitor posaconazole, 300 mg twice on cycle 1, day 21, and 300 mg once daily from cycle 1, days 22-28, to assess its effect on venetoclax pharmacokinetics). Dose escalation followed a standard 3 + 3 design with at least three evaluable patients enrolled per cohort; daily target doses of venetoclax for groups A and B were 400 mg (cohort 1), 800 mg (cohorts 2 and 3), and 1200 mg (cohort 4), and 400 mg for group C. The primary endpoints were the safety and pharmacokinetics of venetoclax plus decitabine or azacitidine, and to determine the maximum tolerated dose and recommended phase 2 dose. Secondary endpoints included the preliminary anti-leukaemic activity of venetoclax with decitabine or azacitidine through the analysis of overall response, duration of response, and overall survival. We analysed safety, pharmacokinetics, and anti-leukaemic activity in all patients who received one or more venetoclax doses. The expansion phase of the study is ongoing but is closed to accrual. This trial is registered with ClinicalTrials.gov, number NCT02203773. FINDINGS: 57 patients were enrolled in the study. 23 patients in group A and 22 patients in group B were enrolled between Nov 19, 2014, and Dec 15, 2015, and 12 patients in group C were enrolled between June 14, 2015, and Jan 16, 2016. As of data cutoff on June 15, 2016, the most common grade 3-4 treatment-emergent adverse events were thrombocytopenia (27 [47%] of 57 patients; nine in group A, 13 in group B, and five in group C), febrile neutropenia (24 [42%] of 57; 11 in group A, ten in group B, and three in group C), and neutropenia (23 [40%] of 57; 12 in group A, eight in group B, and three in group C). The most common serious treatment-emergent adverse event in groups A and B was febrile neutropenia (seven [30%] of 23 patients vs seven [32%] of 22), whereas in group C it was lung infection (four [33%] of 12 patients). 49 (86%) of 57 patients had treatment related adverse events; the most common in groups A and B included nausea (12 [52%] patients vs seven [32%] patients), fatigue (six [26%] patients vs seven [32%]), and decreased neutrophil count (six [26%] patients vs six [27%]), whereas in group C the most common were nausea (seven [58%] of 12 patients), leucopenia (six [50%]), vomiting (five [42%]), and decreased platelet count (five [42%]). The maximum tolerated dose was not reached. The recommended phase 2 dose was 400 mg once a day or 800 mg with an interrupted dosing schedule (safety expansion). In total, four (7%) of 57 patients had died within 30 days of the first venetoclax dose caused by sepsis (group B), bacteraemia (group A), lung infection (group C), and respiratory failure (group A). Tumour lysis syndrome was not observed. Decitabine and azacitidine did not substantially affect venetoclax exposures. Overall, 35 (61%; 95% CI 47.6-74.0) of 57 patients achieved complete remission or complete remission with incomplete marrow recovery. In groups A and B, 27 (60%; 95% CI 44.3-74.3) of 45 patients had complete remission or complete remission with incomplete marrow recovery. INTERPRETATION: Venetoclax plus hypomethylating agent therapy seems to be a novel, well-tolerated regimen with promising activity in this underserved patient population. Evaluation of expansion cohorts is ongoing at 400 mg and 800 mg doses using both hypomethylating agent combinations. FUNDING: AbbVie and Genentech. PMID- 29339098 TI - Vitamin D and Nonalcoholic Fatty Liver Disease: Bi-directional Mendelian Randomization Analysis. AB - BACKGROUND: Vitamin D deficiency is associated with nonalcoholic fatty liver disease (NAFLD) in many cross-sectional studies. However, the causality between them has not been established. We used bi-directional mendelian randomization (MR) analysis to explore the causal relationship between 25-hydroxyvitamin D [25(OH)D] and NAFLD. METHODS: 9182 participants were included from a survey in East China from 2014 to 2016. We calculated weighted genetic risk scores (GRS) for 25(OH)D concentration and NAFLD based on 25(OH)D-related and NAFLD-related single nucleotide polymorphisms. Presence of liver steatosis was assessed using ultrasound. Instrumental variable was used to measure the causal relationship between them. RESULTS: An SD increase in the 25(OH)D GRS was significantly associated with 25(OH)D (beta 1.29, 95%CI -1.54, -1.04, P<0.05) but not with NAFLD (OR 0.97, 95%CI 0.92, 1.01). An SD increase in NAFLD GRS was also strongly associated with NAFLD (OR 1.09, 95%CI 1.04, 1.15, P<0.05) but not with 25(OH)D (beta -0.15, 95%CI -0.41, 0.10). Using an instrumental variable estimator, no associations were found for genetically instrumented 25(OH)D with NAFLD and for genetically instrumented NAFLD with 25(OH)D. CONCLUSION: Our results support the conclusion that there is no causal association between vitamin D and NAFLD using a bi-directional MR approach in a Chinese population. PMID- 29339099 TI - Intestinal Adenovirus Shedding Before Allogeneic Stem Cell Transplantation Is a Risk Factor for Invasive Infection Post-transplant. AB - Human adenoviruses (HAdV) are a major cause of morbidity and mortality in pediatric human stem cell transplant (HSCT) recipients. Our previous studies identified the gastrointestinal tract as a site of HAdV persistence, but the role of intestinal virus shedding pre-transplant for the risk of ensuing invasive infection has not been entirely elucidated. Molecular HAdV monitoring of serial stool samples using RQ-PCR was performed in 304 children undergoing allogeneic HSCT. Analysis of stool and peripheral blood specimens was performed pre transplant and at short intervals until day 100 post-HSCT. The virus was detected in the stool of 129 patients (42%), and 42 tested positive already before HSCT. The patients displaying HAdV shedding pre-transplant showed a significantly earlier increase of intestinal HAdV levels above the critical threshold associated with high risk of invasive infection (p<0.01). In this subset of patients, the occurrence of invasive infection characterized by viremia was significantly higher than in patients without HAdV shedding before HSCT (33% vs 7%; p<0.0001). The data demonstrate that intestinal HAdV shedding before HSCT confers a greatly increased risk for invasive infection and disseminated disease post-transplant, and highlights the need for timely HAdV monitoring and pre emptive therapeutic considerations in HSCT recipients. PMID- 29339100 TI - Genetic Variation in the Dopamine System Influences Intervention Outcome in Children with Cerebral Palsy. AB - BACKGROUND: There is large variation in treatment responses in children with cerebral palsy. Experimental and clinical results suggest that dopamine neurotransmission and brain-derived neurotrophic factor (BDNF) signalling are involved in motor learning and plasticity, which are key factors in modern habilitation success. We examined whether naturally occurring variations in dopamine and BDNF genes influenced the treatment outcomes. METHODS: Thirty-three children (18-60months of age) with spastic unilateral cerebral palsy were enrolled in the study. Each child had participated in a training programme consisting of active training of the involved hand for 2h every day during a 2 month training period. The training outcome was measured using Assisting Hand Assessment before and after the training period. Saliva was collected for genotyping of COMT, DAT, DRD1, DRD2, DRD3, and BDNF. Regression analyses were used to examine associations between genetic variation and training outcome. FINDINGS: There was a statistically significant association between variation in dopamine genes and treatment outcome. Children with a high polygenic dopamine gene score including polymorphisms of five dopamine genes (COMT, DAT, DRD1, DRD2, and DRD3), and reflecting higher endogenous dopaminergic neurotransmission, had the greatest functional outcome gains after intervention. INTERPRETATION: Naturally occurring genetic variation in the dopamine system can influence treatment outcomes in children with cerebral palsy. A polygenic dopamine score might be valid for treatment outcome prediction and for designing individually tailored interventions for children with cerebral palsy. PMID- 29339101 TI - Atherogenic diet induced lipid accumulation induced NFkappaB level in heart, liver and brain of Wistar rat and diosgenin as an anti-inflammatory agent. AB - Atherogenic Diet (AD) was given to rats to understand the key role of inflammatory mediators in atherosclerotic lesion formation, as a serendipitous study, the diet induced inflammatory mediators in liver and brain, whereas pancreas, kidney and spleen were not affected. The efficacy of diosgenin in ameliorating atherosclerotic progression in heart and suppression of inflammatory mediators in liver and brain of Wistar rat fed on AD diet was investigated. Atherogenic diet triggered inflammatory mediators in heart, liver and brain by upregulating TNF-alpha, COX-2 and NFkBp65 which are the inflammatory hub, played a key role in pathophysiologic conditions. Endothelial dysfunction, liver tissue with prominent steatosis and the stress evoked in the brain by the atherogenic diet triggered these inflammatory mediators. TNF-alpha and COX-2 expression was upregulated and its elevation was associated with NFkBp65 activation in heart, liver and brain of atherogenic diet induced rat. Diosgenin downregulated these inflammatory mediators, thereby prevented the atherosclerotic disease progression and concomitant suppression of inflammatory mediators in liver and brain. PMID- 29339102 TI - Spirulina ameliorates methotrexate hepatotoxicity via antioxidant, immune stimulation, and proinflammatory cytokines and apoptotic proteins modulation. AB - AIMS: Methotrexate (MTX) is an efficient cytotoxic drug used against various carcinogenic, inflammatory and autoimmune diseases; however, the hepatotoxicity of MTX limits its use. Therefore, the present study aimed to evaluate the potential hepatoprotective and immune-stimulant effect of Spirulina platensis (SP) against MTX acute toxicity. MAIN METHODS: Thirty-two male Wistar rats were randomly allocated into the following four groups (n = 8): control, SP (500 mg/kg bwt, oral gavage daily for 21 days), MTX (20 mg/kg bwt, single ip injection), and MTX+SP. Hepatic and splenic histoarchitecture, leukocyte counts and serum immunoglobulins were evaluated. Hepatic oxidant/antioxidant status, proinflammatory cytokines (tumor necrosis factor-alpha, and interleukin 6), and pro-apoptotic proteins (caspase 3 and Bax) immunoexpression were assessed. KEY FINDINGS: MTX induced extensive hepatic necrosis and vacuolation, and sever lymphoid depletion in splenic white pulp with increased levels of serum transaminases, lactate dehydrogenase, and hepatic malondialdehyde, tumor necrosis factor-alpha and interleukin 6; and number of caspase 3- and Bax-positive hepatocytes. A significant decrease in leukocyte counts, serum immunoglobulins (IgA, IgM and IgG) level, and hepatic antioxidant enzymes (GSH, GPx, SOD, and CAT) was also detected. Pretreatment with SP resulted in significant improvements in hepatic and splenic histologic architecture, as well as restoring liver enzymes and reduction of lipid peroxidation product, proinflammatory cytokines, and caspase 3 and Bax immunoexpression. Additionally, a significant increase in antioxidant enzymes, serum immunoglobulins, and total leukocyte counts was demonstrated. SIGNIFICANCE: SP possesses promising antioxidant, anti inflammatory, anti-apoptotic and immune stimulatory properties against MTX induced hepatotoxicity and immunosuppression. PMID- 29339103 TI - Comparative review of adult midbrain and striatum neurogenesis with classical neurogenesis. AB - Parkinson's Disease (PD) motor symptoms are caused by loss of dopamine (DA) neurons in the substantia nigra pars compacta (SNc) of the midbrain. Dopamine cell replacement therapy (DA CRT), either by cell transplantation or endogenous repair, has been a potential treatment to replace dead cells and improve PD motor symptoms. Adult midbrain and striatum have been studied for many years to find evidence of neurogenesis. Although the literature is controversial, recent research has revived the possibility of neurogenesis here. This paper aims to review the process of neurogenesis (by focusing on gene expression patterns) in the adult midbrain/striatum and compare it with classical neurogenesis that occurs in developing midbrain, Sub Ventricular Zone (SVZ) and Sub Granular Zone (SGZ) of the adult brain. PMID- 29339104 TI - Region-specific innate antiviral responses of the human epididymis. AB - Viral infections of the epididymis are associated with epididymitis, which damages the epithelium and impairs fertility. We showed previously that innate immune response genes were differentially expressed in the corpus and cauda region of the human epididymis in comparison to the caput. Here we investigate the antiviral defense response mechanisms of human epididymis epithelial (HEE) cells. Toll-like receptor (TLR) 3 and retinoic acid-inducible gene I (RIG-I)-like receptors (RLRs) are enriched in HEE cells from the corpus and cauda region. These HEE cells show an enhanced response to antiviral ligands (poly(I:C) and HSV 60), as shown by increased IFN-beta mRNA expression and IFN-beta secretion. Nuclear translocation of phosphorylated p65 occurs after poly(I:C) exposure. In addition, paired box 2 (PAX2), which was implicated in regulating antiviral response pathways, is required for basal expression of the DNA sensor, Z-DNA binding protein (ZBP1) and type I interferon, in caput but not in cauda cells. PMID- 29339105 TI - Effects of thymol on amyloid-beta-induced impairments in hippocampal synaptic plasticity in rats fed a high-fat diet. AB - Obesity and a high-fat diet (HFD) are known to increase the incidence of Alzheimer's disease (AD). Oxidative stress, a major risk factor for AD, is increased with HFD consumption. Thymol (Thy) has antioxidant properties. Therefore, in the present study, we examined the protective and therapeutic effects of Thy on amyloid-beta (Abeta)-induced impairments in the hippocampal synaptic plasticity of HFD-fed rats. In this study, 72 adult male Wistar rats were randomly assigned to 9 groups (n = 8 rats/group): Group 1 (control; standard diet); Group 2: Control + phosphate-buffered saline (PBS) + Oil (Thy vehicle); Group 3 (HFD + PBS); Group 4: (HFD + Abeta); Group 5: Control + PBS + Thy; Group 6: (HFD + Abeta + Oil); Group 7: Control + Abeta + Thy; Group 8: HFD + PBS + Thy; Group 9: (HFD + Abeta + Thy). After stereotaxic surgery, the field potentials were recorded after the implantation of the recording and stimulating electrodes in the dentate gyrus (DG) and perforant pathway, respectively. Following high frequency stimulation, the long-term potentiation (LTP) of the population spike (PS) amplitude and the slope of the excitatory postsynaptic potentials (EPSPs) were measured in the DG. The HFD rats that received Abeta exhibited a significant decrease in their EPSP slope and PS amplitude as compared to the control group. In contrast, Thy administration in the HFD + Abeta rats reduced the decrease in the EPSP slope and PS amplitude. Thy decreased the Abeta-induced LTP impairments in HFD rats. The HFD significantly increased serum malondialdehyde levels and decreased total antioxidant capacity and total glutathione levels; whereas, Thy supplementation significantly reversed these parameters. Therefore, these results suggest that Thy, a natural antioxidant, can be therapeutic against high risk factors for AD, such as HFD. PMID- 29339106 TI - Safinamide: a new hope for Parkinson's disease? AB - The loss of dopaminergic neurons (DAn) and reduced dopamine (DA) production underlies the reasoning behind the gold standard treatment for Parkinson's disease (PD) using levodopa (L-DOPA). Recently licensed by the European Medicine Agency (EMA) and US Food and Drug Administration (FDA), safinamide [a monoamine oxidase B (MOA-B) inhibitor] is an alternative to L-DOPA; as we discuss here, it enhances dopaminergic transmission with decreased secondary effects compared with L-DOPA. In addition, nondopaminergic actions (neuroprotective effects) have been reported, with safinamide inhibiting glutamate release and sodium/calcium channels, reducing the excitotoxic input to dopaminergic neuronal death. Effects of safinamide have been correlated with the amelioration of non-motor symptoms (NMS), although these remain under discussion. Overall, safinamide can be considered to have potential antidyskinetic and neuroprotective effects and future trials and/or studies should be performed to provide further evidence for its potential as an anti-PD drug. PMID- 29339107 TI - Influenza A virus polymerase: an attractive target for next-generation anti influenza therapeutics. AB - The influenza RNA-dependent RNA polymerase (RdRP) is conserved among different types of influenza virus, playing an important part in transcription and replication. In this regard, influenza RdRP is an attractive target for novel anti-influenza drug discovery. Herein, we will introduce the structural and functional information of influenza polymerase; and an overview of inhibitors targeting the PA endonuclease and PB2 cap-binding site is provided, along with the approaches utilized for identification of these inhibitors. The protein protein interactions (PPIs) of the three polymerase subunits: PA, PB1 and PB2, are described based on the published crystal structures, and inhibitors targeting the PA-PB1 interaction are introduced briefly. PMID- 29339108 TI - Phenotype in girls and women with Turner syndrome: Association between dysmorphic features, karyotype and cardio-aortic malformations. AB - INTRODUCTION: Turner syndrome (TS) is a genetic disorder characterized by the (partial) absence or a structural aberration of the second sex chromosome and is associated with a variety of phenotypes with specific physical features and cardio-aortic malformations. The objective of this study was to gain a better insight into the differences in dysmorphic features between girls and women with TS and to explore the association between these features, karyotype and cardio aortic malformations. METHODS: This prospective study investigated 14 dysmorphic features of TS girls and women using a checklist. Three major phenotypic patterns were recognized (severe phenotype, lymphatic phenotype and skeletal phenotype). Patient data including karyotype and cardio-aortic malformations (bicuspid aortic valve (BAV) and aortic coarctation (COA)) were collected. Associations between the prevalence of dysmorphic features, karyotype and cardio-aortic malformations were analysed using chi2-test and odds ratios. RESULTS: A total of 202 patients (84 girls and 118 women) were analysed prospectively. Differences in prevalence of dysmorphic features were found between girls and women. A strong association was found between monosomy 45,X and the phenotypic patterns. Furthermore, an association was found between COA and lymphatic phenotype, but no association was found between karyotype and cardio-aortic malformations. CONCLUSION: This study uncovered a difference in dysmorphic features between girls and women. Monosomy 45,X is associated with a more severe phenotype, lymphatic phenotype and skeletal phenotype. All patients with TS should be screened for cardio-aortic malformations, because in contrast to previous reports, karyotype and cardio aortic malformations showed no significant association. PMID- 29339110 TI - In vitro anti-diabetic effect of flavonoids and pheophytins from Allophylus cominia Sw. on the glucose uptake assays by HepG2, L6, 3T3-L1 and fat accumulation in 3T3-L1 adipocytes. AB - BACKGROUND AND PURPOSE: Based on ethno-botanical information collected from diabetic patients in Cuba and firstly reported inhibition of PTP1B and DPPIV enzymes activities, Allophylus cominia (A. cominia) was identified as possible source of new drugs that could be used for the treatment of type 2 diabetes mellitus (T2-DM). EXPERIMENTAL APPROACH: in this study, the activity of the characterised extracts from A. cominia was tested on the glucose uptake using HepG2 and L6 cells, 3T3-L1 fibroblasts and adipocytes as well as their effect on the fat accumulation using 3T3-L1 adipocytes. KEY RESULTS: on 2-NBDG glucose uptake assay using HepG2 and L6 cells, extracts from A. cominia enhanced insulin activity by increasing glucose uptake. On HepG2 cells Insulin EC50 of 93 +/- 21nM decreased to 13 +/- 2nM in the presence of the flavonoids mixture from A.cominia. In L6 cells, insulin also produced a concentration-dependent increase with an EC50 of 28.6 +/- 0.7nM; EC50 decreased to 0.08 +/- 0.02nM and 5 +/- 0.9nM in the presence of 100MUg/ml of flavonoids and pheophytins mixtures, respectively. In 3T3-L1 fibroblasts, insulin had an EC50 of >1000nM that decreased to 38 +/- 4nM in the presence of the flavonoids extract. However, in adipocytes, insulin produced a significant concentration-dependent increase and an EC50 of 30 +/- 8nM was a further confirmation of the insulin responsiveness of the adipocytes to the insulin. At 100ug/ml, flavonoids and pheophytins extracts decreased fat accumulation in 3T3-L1 adipocytes by two folds in comparison to the control differentiated cells (p < 0.05). The crude extract of A. cominia did not show any enhancement of 2-NBDG uptake by 3T3-L1 adipocytes in the presence or absence of 100nM insulin. In addition, in fully differentiated adipocytes, both extracts produced significant decrease in lipid droplets in the cells and no lipid accumulation were seen after withdrawal of the extracts from the cell growth medium. However, there was no effect of both extracts on total protein concentration in cells as well as on Glut-4 transporters. CONCLUSIONS AND IMPLICATIONS: the pharmacological effects of the extracts from A. cominia observed in experimental diabetic models were shown in this study. A. cominia is potentially a new candidate for the treatment and management of T2-DM. PMID- 29339109 TI - Bitter gourd reduces elevated fasting plasma glucose levels in an intervention study among prediabetics in Tanzania. AB - ETHNOPHARMACOLOGICAL RELEVANCE: Impaired glucose tolerance and diabetes mellitus have become major health issues even in non-industrialized countries. As access to clinical management is often poor, dietary interventions and alternative medicines are required. For bitter gourd, Momordica charantia L., antidiabetic properties have been claimed. AIM OF THE STUDY: The main objective of the intervention study was to assess antidiabetic effects of daily bitter gourd consumption of 2.5g powder over the course of eight weeks among prediabetic individuals. MATERIALS AND METHODS: In a randomized placebo-controlled single blinded clinical trial, 52 individuals with prediabetes were studied after consuming a bitter gourd or a cucumber juice. For reducing the impact of between subject differences in the study population, a crossover design was chosen with eight weeks for each study period and four weeks washout in between. Fasting plasma glucose was chosen as the primary outcome variable. RESULTS: Comparing the different exposures, the CROS analysis (t=-2.23, p=0.031, r=0.326) revealed a significant difference in the change of FPG of 0.31mmol/L (5.6mg/dL) with a trend (R2=0,42387). The number of 44 finally complete data sets achieved a power of 0.82, with a medium-to-large effect size (Cohen's d 0.62). The effect was also proven by a general linear mixed model (estimate 0.31; SE: 0.12; p: 0.01; 95%CI: 0.08; 0.54). Not all participants responded, but the higher the initial blood glucose levels were, the more pronounced the effect was. No serious adverse effects were observed. CONCLUSIONS: Bitter gourd supplementation appeared to have benefits in lowering elevated fasting plasma glucose in prediabetes. The findings should be replicated in other intervention studies to further investigate glucose lowering effects and the opportunity to use bitter gourd for dietary self management, especially in places where access to professional medical care is not easily assured. PMID- 29339111 TI - Stem Cells for Urinary Incontinence: Functional Differentiation or Cytokine Effects? AB - Minimally invasive stem cell therapy for stress urinary incontinence may provide an effective nonsurgical treatment for this common condition. Clinical trials of periurethral stem cell injection have been under way, and basic science research has demonstrated the efficacy of both local and systemic stem cell therapies. Results differ as to whether stem cells have a therapeutic effect by differentiating into permanent, functional tissues or exert benefits through a transient presence and the secretion of regenerative factors. This review explores the fate of therapeutic stem cells for stress urinary incontinence and how this may relate to their mechanism of action. PMID- 29339112 TI - Reply to: "Reply to: 'Response to DAA therapy in the NHS England Early Access Programme for rare HCV subtypes from low and middle income countries'". PMID- 29339113 TI - Development of the liver: Insights into organ and tissue morphogenesis. AB - Recent development of improved tools and methods to analyse tissues at the three dimensional level has expanded our capacity to investigate morphogenesis of foetal liver. Here, we review the key morphogenetic steps during liver development, from the prehepatic endoderm stage to the postnatal period, and consider several model organisms while focussing on the mammalian liver. We first discuss how the liver buds out of the endoderm and gives rise to an asymmetric liver. We next outline the mechanisms driving liver and lobe growth, and review morphogenesis of the intra- and extrahepatic bile ducts; morphogenetic responses of the biliary tract to liver injury are discussed. Finally, we describe the mechanisms driving formation of the vasculature, namely venous and arterial vessels, as well as sinusoids. PMID- 29339114 TI - A systematic review and meta-analysis of cardiorespiratory fitness among Indigenous populations in North America and circumpolar Inuit populations. AB - Indigenous populations experience health disparities including increased obesity, diabetes and cardiovascular disease rates. Cardiorespiratory fitness is beneficial for maintaining positive health outcomes. The objective of this systematic review is to evaluate cardiorespiratory fitness among Indigenous populations including comparisons across genders, Indigenous identities, age groups, decades, socio-demographic variables and in comparison to non-Indigenous groups. Included articles reported various cardiorespiratory fitness measures using maximal treadmill or cycle ergometer tests, 20 m shuttle run, 1 mile run/walk test and 6 min walk test. From 14 databases searched in March 2017, including MEDLINE, EMBASE and Scopus, 1069 citations were evaluated and 39 articles included, representing 32 investigations and 10,579 individuals. First Nations/American Indian (FN/AI) adults have greater cardiorespiratory fitness than Inuit. Inuit and FN/AI men and boys have higher cardiorespiratory fitness than women and girls. Lower cardiorespiratory fitness is associated with obesity, metabolic syndrome and a western lifestyle. Cardiorespiratory fitness has declined among Inuit adults, averaging 51.7 +/- 7.9 mL.kg-1.min-1 in 1970 to 37.7 +/- 6.9 mL.kg-1.min-1 in 2000. Among men, FN/AI have greater cardiorespiratory fitness compared to European-descents, and European-descents have greater cardiorespiratory fitness compared to Inuit. The 1 mile run/walk time showed that FN/AI boys, girls, and youth had faster times compared to European-descendants, but 20 m shuttle run showed that European-descent boys and youth advanced to further stages compared to FN/AI populations. Cardiorespiratory fitness is declining, and among some Indigenous populations to lower levels than European descent populations. Improving cardiorespiratory fitness for Indigenous populations should be considered a primary health strategy. PMID- 29339115 TI - Toddler drinks, formulas, and milks: Labeling practices and policy implications. AB - Toddler drinks are a growing category of drinks marketed for young children 9-36 months old. Medical experts do not recommend them, and public health experts raise concerns about misleading labeling practices. In the U.S., the toddler drink category includes two types of products: transition formulas, marketed for infants and toddlers 9-24 months; and toddler milks, for children 12-36 months old. The objective of this study was to evaluate toddler drink labeling practices in light of U.S. food labeling policy and international labeling recommendations. In January 2017, we conducted legal research on U.S. food label laws and regulations; collected and evaluated toddler drink packages, including nutrition labels and claims; and compared toddler drink labels with the same brand's infant formula labels. We found that the U.S. has a regulatory structure for food labels and distinct policies for infant formula, but no laws specific to toddler drinks. Toddler drink labels utilized various terms and images to identify products and intended users; made multiple health and nutrition claims; and some stated there was scientific or expert support for the product. Compared to the same manufacturer's infant formula labels, most toddler drink labels utilized similar colors, branding, logos, and graphics. Toddler drink labels may confuse consumers about their nutrition and health benefits and the appropriateness of these products for young children. To support healthy toddler diets and well-informed decision-making by caregivers, the FDA can provide guidance or propose regulations clarifying permissible toddler drink labels and manufacturers should end inappropriate labeling practices. PMID- 29339116 TI - Understanding Women's Subjective Sexual Arousal Within the Laboratory: Definition, Measurement, and Manipulation. AB - INTRODUCTION: Subjective sexual arousal (SSA) is positive, cognitive engagement in sexual activity. SSA is considered an important aspect of the sexual experience, as it has been found to facilitate sexual activity and, in situations of chronically low or absent arousal, potentially cause distress. Despite the clinical implications of SSA, a thorough review of how to manipulate SSA has yet to be conducted. AIM: To review the state of knowledge about SSA in women, including its definition, measurement, and the outcomes of studies attempting to manipulate SSA within a laboratory setting. METHOD: A comprehensive search of the electronic databases of PubMed and PsycINFO was conducted. The generated list of articles was reviewed and duplicates were removed. Individual articles were assessed for inclusion and, when appropriate, relevant content was extracted. MAIN OUTCOME MEASURE: The potential effects of various manipulations of SSA in a laboratory setting was the main outcome. RESULTS: 44 studies were included in this review. Manipulations were grouped into 3 primary categories: pharmacological (n = 16), cognitive (n = 22), and those based on changes to the autonomic nervous system (n = 6). Results suggest that cognitive manipulation is the most effective method of increasing SSA. Altering the relative balance of the 2 branches of the autonomic nervous system (the sympathetic nervous system and the parasympathetic nervous system) also appears to be a promising avenue for increasing SSA. CONCLUSION: This review supports the use of cognitive manipulation for increasing women's SSA in a laboratory setting. Avenues for future research and recommendations for clinicians are discussed. Handy AB, Stanton AM, Meston CM. Understanding Women's Subjective Sexual Arousal Within the Laboratory: Definition, Measurement, and Manipulation. Sex Med Rev 2018;6:201 216. PMID- 29339117 TI - Expression, activation and processing of a novel plant milk-clotting aspartic protease in Pichia pastoris. AB - Galium verum, also known as Lady's Bedstraw or Cheese Rennet, is an herbaceous perennial plant traditionally used in cheese-making. We used RACE PCR to isolate novel enzymes from Galium verum with the ability to clot milk. This approach generated two cDNA sequences (named preprogaline A and B) encoding proteins displaying the typical plant aspartic protease primary structure. Preprogaline B was expressed in the yeast Pichia pastoris, after deleting and replacing its original signal peptide with the yeast alpha-factor signal peptide from Saccharomyces cerevisiae. The secreted recombinant protein was obtained by growing P. pastoris in YPD medium and had the ability to clot milk. The mature form of progaline B is a heterodimeric glycosylated enzyme, with a molecular weight of approximately 48 kDa, that contains a heavy (30.7 kDa) and a light (13.5 kDa) polypeptide chains linked by disulfide bonds. Western blot analysis revealed that progaline B is activated by the acidification of the yeast culture medium and that enzymatic activation requires two steps. First the precursor protein is cleaved into two polypeptide chains by partial removal of the plant specific insert (PSI) present in plant aspartic proteases; this is later followed by propeptide removal. By altering the pH of the P. pastoris culture medium, we were able to obtain either active or inactive forms of the enzyme. Recombinant progaline B displayed a kappa-casein hydrolysis pattern analogous to those produced by the animal and microbial coagulants currently used in the dairy industry, but it exhibited a different digestion profile on alpha- and beta caseins. The plant protease progaline B displays milk-clotting activities suitable for the production of novel dairy products. PMID- 29339118 TI - Aerobic and anaerobic cellulose utilization by Paenibacillus sp. CAA11 and enhancement of its cellulolytic ability by expressing a heterologous endoglucanase. AB - For cost-effective lignocellulosic biofuel/chemical production, consolidated bioprocessing (CBP)-enabling microorganisms utilizing cellulose as well as producing biofuel/chemical are required. A novel strain Paenibacillus sp. CAA11 isolated from sediment was found to be not only as a cellulose degrader under both aerobic and strict anaerobic conditions but also as a producer of cellulosic biofuel/chemicals. Paenibacillus sp. CAA11 secreted cellulolytic enzymes by its own secretion system and produced ethanol as well as short-chain organic acids (formic acid, acetic acid, lactic acid) from cellulose. Cellulolytic activity of the strain was significantly enhanced by expressing a heterologous endoglucanase 168Cel5 from Bacillus subtilis under both aerobic and anaerobic conditions. The strain harboring the 168cel5 gene revealed 2-fold bigger halo zone on Congo-red plate and 1.75-fold more aerobic cellulose utilization in liquid medium compared with the negative control. Notably, under anaerobic conditions, the recombinant strain expressing 168Cel5 consumed 1.83-fold more cellulose (5.10 g/L) and produced 5-fold more ethanol (0.65 g/L) along with 5-fold more total acids (1.6 g/L) compared with the control, resulting 2.73-fold higher yields. This result demonstrates the potential of Paenibacillus sp. CAA11 as a suitable aerobic and anaerobic CBP-enabling microbe with cellulolytic production of ethanol and short chain organic acids. PMID- 29339119 TI - Targeting of stress response pathways in the prevention and treatment of cancer. AB - The hallmarks of tumor tissue are not only genetic aberrations but also the presence of metabolic and oxidative stress as a result of hypoxia and lactic acidosis. The stress activates several prosurvival pathways including metabolic remodeling, autophagy, antioxidant response, mitohormesis, and glutaminolysis, whose upregulation in tumors is associated with a poor survival of patients, while their activation in healthy tissue with statins, metformin, physical activity, and natural compounds prevents carcinogenesis. This review emphasizes the dual role of stress response pathways in cancer and suggests the integrative understanding as a basis for the development of rational therapy targeting the stress response. PMID- 29339120 TI - Symmetry of peripheral retinal nonperfusion in diabetic retinopathy by ischemic index. AB - PURPOSE: Diabetic retinopathy is the leading cause of blindness among working-age adults in most developed countries. It affects eyes bilaterally and is generally believed to be symmetrical, yet there are few studies evaluating the symmetry of diabetic retinopathy. The purpose of the present study was to evaluate the symmetry of the amount of peripheral retinal ischemia in patients with diabetic retinopathy. METHODS: Ultra-widefield fluorescein angiography images were obtained on both eyes of 54 subjects, mean age 56.4 years, from an urban eye clinic. A single, high quality image from the arteriovenous phase of the angiogram of each eye was selected for analysis. The total area of gradable fundus and area of nonperfusion seen in the arteriovenous phase of the ultra widefield fluorescein angiogram were determined. An ischemic index (ISI) was calculated by dividing the non-perfused retinal area by the total retinal area and multiplying by 100. RESULTS: The mean ISI OD was 11.27, mean ISI OS was 11.64. The mean absolute value (+/-SD) of ISI difference between OD and OS was 4.46+/-6.09. A difference in ISI of 10% or less was found in 92.6% of subjects. A statistically significant correlation was found in the ISI between right and left eyes (rs=0.80, p<0.0001) and there was no statistically significant difference in ISI between the right and left eyes (p=0.85). CONCLUSION: Asymmetrical retinopathy in diabetic patients is uncommon and additional pathological processes should be considered in the presence of asymmetric DR. PMID- 29339122 TI - Regnase-1, an Immunomodulator, Limits the IL-36/IL-36R Autostimulatory Loop in Keratinocytes to Suppress Skin Inflammation. PMID- 29339121 TI - HSF1, in association with MORC2, downregulates ArgBP2 via the PRC2 family in gastric cancer cells. AB - Arg Kinase-binding protein 2 (ArgBP2) is considered to be a scaffold protein that coordinates multiple signaling pathways converging on cell adhesion and actin cytoskeletal organization. It also plays an important role in blocking cancer metastasis as a potential tumor suppressor. However, its regulation mechanisms in tumor migration, especially in gastric cancer, are not fully understood. Here, we identified an ArgBP2 enhancer and showed that heat shock factor 1 (HSF1) directly interacted with microrchidia CW-type zinc finger 2 (MORC2) and bound to the enhancer of ArgBP2. HSF1 was found to promote proliferation, migration and invasion of gastric cancer cells. HSF1 or/and MORC2 increased recruitment of the polycomb repressive complex 2 (PRC2), particularly enhancer of zeste homolog 2 (EZH2), to the ArgBP2 enhancer and catalyzed tri-methylation of lysine 27 on histone H3 (H3K27me3), leading to transcriptional repression of ArgBP2. In addition, HSF1 and MORC2-induced migration and invasion in gastric cancer cells was dependent on ArgBP2 or EZH2. Clinical data exhibited a negative correlation of ArgBP2 with MORC2, HSF1, and EZH2. Our results thus contribute to the knowledge of the regulatory mechanism of HSF1 in down-regulating ArgBP2, providing new insight into the HSF1&MORC2-PRC2-ArgBP2 signaling pathway and a better understanding of their functions in gastric cancer cells. PMID- 29339123 TI - Identical twins with XLA requiring differing amounts of 20% subcutaneous immunoglobulin secondary to protein-losing enteropathy. PMID- 29339124 TI - The first case of methemoglobinemia associated with omalizumab. PMID- 29339125 TI - Prevalence and Outcomes of Primary Immunodeficiency in Hospitalized Children in the United States. AB - BACKGROUND: Primary immunodeficiency diseases (PIDDs) are rare yet life threatening chronic conditions in children. The prevalence and outcomes of PIDDs in the pediatric population in the United States are not well understood. OBJECTIVE: The objectives of this study were to (1) determine the epidemiology of children hospitalized with PIDD in the United States and (2) characterize the clinical outcomes of hospitalized children with PIDDs. METHODS: Retrospective cohort analysis of the 2003-2012 Kids' Inpatient Database of children aged 2-18 years admitted with a primary or secondary diagnosis code of PIDD was performed. Secondary immunodeficiency diseases were excluded. RESULTS: There were 26,794 pediatric patients hospitalized with a diagnosis of a PIDD from 2003 to 2012. The national prevalence of all PIDDs per 100,000 was 66.6, 82.2, 97.4, and 126.8 in 2003, 2006, 2009, and 2012, respectively. The highest prevalence was in children 0-5 years of age (15,105 hospitalizations; 56%). There was no difference in prevalence between B-cell defects and T-cell defects. PIDDs affected all ethnic populations equally. Respiratory-related diagnoses were the most common comorbidity by an organ system. Overall mortality was 1.99%. Age was inversely correlated with clinical outcome. Children 0-5 years had higher mortality (424 deaths, 79.85%), mean hospital charges ($35,480), and length of stay (LOS) (5.6 days) compared with older age cohorts. CONCLUSIONS: The prevalence of PIDDs in the hospitalized pediatric population in the United States may have increased over time. Younger age is associated with higher mortality, hospital costs, and LOS. Further study is needed to determine cost-effective management strategies to improve outcomes in infants and young children with PIDD. PMID- 29339126 TI - Addressing the Impact and Unmet Needs of Nonadherence in Asthma and Chronic Obstructive Pulmonary Disease: Where Do We Go From Here? AB - Nonadherence to treatment, and its associated health and economic burden, is particularly problematic in asthma and chronic obstructive pulmonary disease management because of heterogeneous patient populations and the need for an inhaled route of drug administration. Symptom variability, comorbidities, and device switching further add to suboptimal adherence rates. As opposed to controlled clinical trials, real-life studies show consistently low inhaler adherence in daily practice, yet exact adherence rates have long been affected by disagreement on standardized definitions. The recently developed Ascertaining Barriers to Compliance taxonomy helps to address adherence research disparities by identifying 3 phases of adherence (initiation, implementation [including correct inhaler technique], and discontinuation). This review considers the reasons for and impact of suboptimal adherence, together with summaries of key studies that demonstrate how improving adherence can reduce exacerbations, inhaled corticosteroid use (in cases of better inhaler technique), hospitalizations, and treatment costs. Strategies to help ensure optimal adherence are discussed, including the choice of a patient-tailored inhaler, patient empowerment, education and training, and the potential of electronic monitoring and digital technology. It is concluded that a combined effort from payers, health care professionals, and manufacturers could make a real difference to asthma and chronic obstructive pulmonary disease control, as well as to health care budgets. PMID- 29339127 TI - The Basophil Activation Test Can Be of Value for Diagnosing Immediate Allergic Reactions to Omeprazole. AB - BACKGROUND: Proton pump inhibitors (PPIs) are commonly used to treat gastrointestinal diseases. Incidence of hypersensitivity reactions to PPIs has risen, likely because of increased consumption. Their diagnosis is difficult, with skin tests (STs) presenting low sensitivity, making it necessary to perform drug provocation tests (DPTs). The value of in vitro tests for the diagnosis of immediate reaction to PPI is unclear. OBJECTIVE: To analyze the diagnostic value of the basophil activation test (BAT) in a group of patients diagnosed with immediate allergy to omeprazole. METHODS: The study included 42 patients with confirmed immediate allergic reactions to omeprazole confirmed by positive ST results or DPT results and 22 age- and sex-matched subjects tolerant to PPIs. BAT was performed with omeprazole, pantoprazole, and lansoprazole using CD63 and CD203c as activation markers. RESULTS: ST sensitivity was 66.7% with a specificity of 100%. BAT using CD63 with a stimulation index of more than 2 as positive revealed a sensitivity of 73.8%, a specificity of 100%, a positive predictive value of 100%, and a negative predictive value of 66.7%. BAT was positive in 57.1% of patients with negative ST result, and thus by combining ST and BAT we can correctly diagnose 85.7% of patients with immediate allergy to omeprazole. CONCLUSION: BAT represents a complementary tool for inclusion in the allergological workup for patients allergic to omeprazole. When combined with ST, it can be of value to guide the clinician as to whether to perform a DPT. PMID- 29339128 TI - Anxiety and Depression Effects During Drug Provocation Test. AB - BACKGROUND: Drug provocation test (DPT) represents the gold standard for the diagnosis of drug allergy. A DPT can be performed in a single-blind placebo controlled manner. In anxiety and depressive disorders, patients need to be evaluated to understand the nature of placebo reactions. OBJECTIVE: The aim of this study was to evaluate the psychological profile of patients with reactions to placebo during a DPT. METHODS: We consecutively enrolled patients with suspected drug allergy undergoing a DPT preceded by the administration of the placebo. All patients underwent the Hospital Anxiety and Depression Scale (HADS), a questionnaire aimed to identify anxiety and depression, before the challenge test. RESULTS: A total of 196 patients were enrolled into this study: 8 (4%) patients resulted positive to the DPT, 60 (30.6%) demonstrated anxiety or depression based on the HADS, and 54 had at least 1 placebo reaction during drug provocation. There were statically significant correlations between the positivity of the HADS and the finding of a placebo reaction (Fisher's exact test: P < .001), and between the latter and a history of severe reactions to drug (Fisher's exact test: P < .001). CONCLUSIONS: There is a significant and strong correlation between the loss of psychic equilibrium and the development of a placebo reaction during a DPT. We suggest the use the HADS or other validated questionnaire in clinical practice before a DPT to evaluate the possible psychiatric components. PMID- 29339129 TI - Systemic Reactions in Pediatric Patients Receiving Standardized Allergen Subcutaneous Immunotherapy with and without Seasonal Dose Adjustment. AB - BACKGROUND: The 2003 Joint Task Force on Practice Parameters recommended standardizing allergen subcutaneous immunotherapy (SCIT). Data from longitudinal surveillance survey in North America reported a systemic reaction (SR) rate of 0.1% to 0.2% of injection visits. The rate of SR to standardized SCIT in pediatric patients has not been well evaluated. OBJECTIVE: The objective of this study was to evaluate the rate of SRs to standardized SCIT in pediatric patients aged 5 to 18 years in a single tertiary care center in the United States. METHODS: A retrospective chart review was conducted in 2 groups: group 1 started SCIT within a period extending from January 2009 to June 2012, whereas group 2 started SCIT within a period extending from January 2013 to June 2016. The protocol was modified in group 2 such that updosing and maintenance doses were adjusted in the spring for tree and grass pollen and in the fall for weed pollen. RESULTS: There were a total of 128 patients in group 1 and 118 patients in group 2. The rate of SR was 0.429% in group 1 and 0.364% in group 2, which was not significant. There was no difference in the severity of SR in the 2 groups with no-fatal or near-fatal SR noted. Asthma was a significant risk factor in the younger age subgroup aged 5 to 11 years. CONCLUSIONS: Standardized SCIT appears to be associated with an SR rate of 0.429% to 0.364% of visits in pediatric patients. Protocol modification did not lead to a significant drop in SR. Larger multicenter studies are required to further evaluate the rate of SRs from standardized SCIT. PMID- 29339130 TI - Fixed Drug Eruption Related to Cefixime in an Adolescent Case. PMID- 29339132 TI - Exogenous progesterone hypersensitivity associated with recurrent pregnancy loss. PMID- 29339131 TI - Childhood Asthma: Is It All About Bacteria and Not About Viruses? A Pro/Con Debate. PMID- 29339133 TI - Antithrombin III-Binding Site Analysis of Low-Molecular-Weight Heparin Fractions. AB - Low-molecular-weight heparins (LMWHs) are widely used as clinical anticoagulant drugs. LMWHs are heterogeneous and highly negatively charged glycans prepared by chemical or enzymatic depolymerization of unfractionated heparin. The detailed structural analysis of a LMWH is essential for the drug quality control. In this study, an LMWH, enoxaparin sodium (a generic version of Lovenox) was separated into different molecular weight fractions by a Superdex peptide column. The disaccharide compositions, 3-O-sulfo group-containing tetrasaccharides composition, and antithrombin III-binding affinity of the fractions from this LMWH were analyzed. The results showed that all the fractions had very similar disaccharide and 3-O-sulfo group-containing tetrasaccharide compositions, but the fraction containing larger-sized chains had higher antithrombin III-binding affinity. PMID- 29339134 TI - A Small-Scale Process for Predicting Donnan and Volume Exclusion Effects During Ultrafiltration/Diafiltration Process Development. AB - Achieving the desired final protein formulation using ultrafiltration/diafiltration (UF/DF) operations is an essential component of many protein purification processes. It is well documented that differences in the excipient and buffer concentrations exist between the DF and retentate solutions when they have achieved equilibrium. Several publications have proposed ways to calculate these differences. However, the accuracy of these methods has been limited by the use of an estimated protein charge value. In this article, a small-scale system is described, which can accurately determine the protein charge by making buffer and excipient concentration measurements and applying the determined values to the Donnan and volume exclusion equations. This information can be utilized to generate a standard curve, which in turn can be applied to at scale UF/DF operations. For 2 different antibodies, the standard curve generated by the small-scale system yielded buffer concentrations and pH values that agreed well with those generated after UF/DF operations, whereas using the theoretical protein charge caused a departure from the measured results. This model also provides good estimates as to how the final formulation pH and buffer concentration vary as a function of the pH and buffer concentration in the DF buffer. This information is of important utility for the accurate formulation of high-concentration protein solutions (>100 mg/mL) where the coconcentration of buffers and the volume exclusion of certain excipients are amplified. The low material requirements of the small-scale system are a major benefit for early phase formulation and process development when sufficient time and material may not be available, in particular to ensure successful UF/DF operations for the development of high protein concentration formulations. PMID- 29339135 TI - Quantitative Monitoring the Anti-Solvent Crystallization and Storage Process for Nandrolone by Near-Infrared Spectroscopy. AB - A novel hydrate (SH2O) of nandrolone was prepared by anti-solvent methods. The crystallization processes with 2 schemes (A and B) were monitored by in-line near infrared (NIR) spectroscopy. The amounts of SH2O in powder samples obtained by the anti-solvent crystallization and storage process were quantified by NIR combined with chemometrics methods. In-line NIR spectra from 4500 to 8000 cm-1 were chosen to capture physicochemical changes during the whole crystallization process. The combination of the principal component results with offline characterization (scanning electron microscopy, powder X-ray diffraction, NIR) data showed that both schemes yielded high purity SH2O products, but the crystallization speed of scheme B was significantly accelerated. It was demonstrated that in-line NIR spectroscopy combined with principal component analysis can be very useful to monitor in real time and control the anti-solvent crystallization process. Moreover, the solubility and the solid-state transformation of nandrolone under different storage conditions were investigated. The apparent solubility of SH2O was 2.19-2.44 times of Form I, and SH2O was relatively stable when stored at a high relative humidity and temperature below 25 degrees C. PMID- 29339136 TI - Development of Orally Applicable, Combinatorial Drug-Loaded Nanoparticles for the Treatment of Fibrosarcoma. AB - Nanoparticulate systems have been receiving a significant attention especially for the treatment of cancer but one of the main hurdles is to produce these developed and high-tech nanosystems in large quantities. Anticancer drug formulations are generally designed for parenteral administrations but oral administration is still the most convenient route. In this study, orally applicable nano-sized chitosan nanoparticles (NPs) were successfully prepared using Nano Spray Dryer. It is possible to produce these NPs in large quantities by simply increasing the processing time using the machine without changing any parameter. A chemotherapeutic agent (imatinib mesylate; IMA) and nonsteroidal anti-inflammatory drug (dexketoprofen trometamol) were loaded together in these NPs. NPs were also functionalized with polyethylene glycol and folic acid to obtain long circulating NPs and tumor targeting. The antitumoral activities of formulations showed that these developed NPs can enhance the effectiveness. Animal experiments were performed on fibrosarcoma-bearing mice model, and the treatment with 0.8 mg/MUL/kg IMA-loaded chitosan NPs was found to be successful to slow down the growth of tumors. The tumor tissues were removed from the animals and enzymatic activities were evaluated. The inhibitory effect of tyrosine kinase was found to be enhanced from 36.4% to 68.4% when IMA was used in combination with dexketoprofen trometamol. Furthermore, all dried NPs were found to be stable for more than a year at 25 degrees C. Presented results show that these developed combinatorial drug-loaded NPs can be used for the treatment of fibrosarcoma, and these data can provide an insight, new strategies for productions or alternatives in cancer treatment. PMID- 29339137 TI - Oxygen-induced alterations in the expression of chromatin modifying enzymes and the transcriptional regulation of imprinted genes. AB - Embryo culture and assisted reproductive technologies have been associated with a disproportionately high number of epigenetic abnormalities in the resulting offspring. However, the mechanisms by which these techniques influence the epigenome remain poorly defined. In this study, we evaluated the capacity of oxygen concentration to influence the transcriptional control of a selection of key enzymes regulating chromatin structure. In mouse embryonic stem cells, oxygen concentrations modulated the transcriptional regulation of the TET family of enzymes, as well as the de novo methyltransferase Dnmt3a. These transcriptional changes were associated with alterations in the control of multiple imprinted genes, including H19, Igf2, Igf2r, and Peg3. Similarly, exposure of in vitro produced bovine embryos to atmospheric oxygen concentrations was associated with disruptions in the transcriptional regulation of TET1, TET3, and DNMT3a, along with the DNA methyltransferase co-factor HELLS. In addition, exposure to high oxygen was associated with alterations in the abundance of transcripts encoding members of the Polycomb repressor complex (EED and EZH2), the histone methyltransferase SETDB1 and multiple histone demethylases (KDM1A, KDM4B, and KDM4C). These disruptions were accompanied by a reduction in embryo viability and suppression of the pluripotency genes NANOG and SOX2. These experiments demonstrate that oxygen has the capacity to modulate the transcriptional control of chromatin modifying genes involved in the establishment and maintenance of both pluripotency and genomic imprinting. PMID- 29339139 TI - Improved coronary magnetic resonance angiography using gadobenate dimeglumine in pediatric congenital heart disease. AB - BACKGROUND: CMRA in pediatrics remains challenging due to the smaller vessel size, high heart rates (HR), potential image degradation caused by limited patient cooperation and long acquisition times. High-relaxivity contrast agents have been shown to improve coronary imaging in adults, but limited data is available in children. We sought to investigate whether gadobenate dimeglumine (Gd-BOPTA) together with self-navigated inversion-prepared coronary magnetic resonance angiography (CMRA) sequence design improves coronary image quality in pediatric patients. METHODS: Forty consecutive patients (mean age 6+/-2.8years; 73% males) were prospectively recruited for a 1.5-T MRI study under general anesthesia. Two electrocardiographic-triggered free breathing steady-state free precession (SSFP) angiography sequences (A and B) with isotropic spatial resolution (1.3mm3) were acquired using a recently developed image-based self navigation technique. Sequence A was acquired prior to contrast administration using T2 magnetization preparation (T2prep). Sequence B was acquired 5-8min after a bolus of Gd-BOPTA with the T2prep replaced by an inversion recovery (IR) pulse to null the signal from the myocardium. Scan time, signal-to noise and contrast to-noise ratios (SNR and CNR), vessel wall sharpness (VWS) and qualitative visual score for each sequence were compared. RESULTS: Scan time was similar for both sequences (5.3+/-1.8 vs 5.2+/-1.5min, p=.532) and average heart rate (78+/-14.7 vs 78+/-14.5bpm, p=.443) remained constant throughout both acquisitions. Sequence B resulted in higher SNR (12.6+/-4.4 vs 31.1+/-7.4, p<.001) and CNR (9.0+/-1.8 vs 13.5+/-3.7, p<.001) and provided improved coronary visualization in all coronary territories (VWS A=0.53+/-0.07 vs B=0.56+/-0.07, p=.001; and visual scoring A=3.8+/-0.59 vs B=4.1+/-0.53, p<.001). The number of non-diagnostic coronary segments was lower for sequence B [A=42 (13.1%) segments vs B=33 (10.3%) segments; p=.002], and contrary to the pre-contrast sequence, never involved a proximal segment. These results were independent of the patients' age, body surface area and HR. CONCLUSIONS: The use of Gd-BOPTA with a 3D IR SSFP CMRA sequence results in improved coronary visualization in small infants and young children with high HR within a clinically acceptable scan time. PMID- 29339138 TI - Hyperglycaemia disrupts conducted vasodilation in the resistance vasculature of db/db mice. AB - Vascular dysfunction in small resistance arteries is observed during chronic elevations in blood glucose. Hyperglycaemia-associated effects on endothelium dependent vasodilation have been well characterized, but effects on conducted vasodilation in the resistance vasculature are not known. Small mesenteric arteries were isolated from healthy and diabetic db/db mice, which were used as a model of chronic hyperglycaemia. Endothelium-dependent vasodilation via the Gq/11 coupled proteinase activated receptor 2 (PAR2) was stimulated with the selective agonist SLIGRL. The Ca2+-sensitive fluorescent indicator fluo-8 reported changes in endothelial cell (EC) [Ca2+]i, and triple cannulated bifurcating mesenteric arteries were used to study conducted vasodilation. Chronic hyperglycaemia did not affect either EC Ca2+ or local vasodilation to SLIGRL. However, both acute and chronic exposure to high glucose or the mannitol osmotic control attenuated conducted vasodilation to 10MUM SLIGRL. This investigation demonstrates for the first time that a hypertonic solution containing glucose or mannitol can interfere with the spread of a hyperpolarizing current along the endothelium in a physiological setting. Our findings reiterate the importance of studying the effects of hyperglycaemia in the vasculature, and provide the basis for further studies regarding the modulation of junctional proteins involved in cell to cell communication by diseases such as diabetes. PMID- 29339140 TI - [Could we perform vaginal mesh surgery for treatment of pelvic organ prolapse in elderly women?] AB - INTRODUCTION: Prevalence of pelvic organ prolapse will increase with the aging of the population. Concerning the treatment of pelvic organ prolapse, transvaginal route is often preferred for elderly women. However few data are available concerning transvaginal mesh surgery in this population. The aim of this study was to compare efficiency and complications of transvaginal mesh surgery between women aged over 75 and younger women. MATERIALS AND METHODS: A monocentric, retrospective study included all women who underwent anterior sacrospinous suspension with mesh for treatment of pelvic organ prolapse. The primary endpoint was anatomical success at the last follow-up, defined by a pelvic organ prolapse stage 0 or 1 of POP-Q classification. The secondary endpoints were rate of complications and urinary, colorectal and sexual functional results. RESULTS: We included 329 patients, 69 were under 75 years old and 260 were aged over 75. The median of follow-up was 12 months (IQR: 6). The rate of anatomical success was significantly higher in patients aged over 75: 92% versus 85% in younger patients (P=0.02). However this difference was no more significant in multivariate analysis after inclusion of confusions factors (P=0.82). The rate of perioperative complications was low and similar in the 2 groups even in multivariate analysis. CONCLUSION: Utero-vaginal suspension using bilateral vaginal anterior sacrospinous fixation with mesh seems to achieve at least similar results between women aged more than 75 years and younger women. There is no excess risk of complications in elderly women. LEVEL OF EVIDENCE: 4. PMID- 29339141 TI - [Immunotherapy in renal cell carcinoma: A booming clinical research]. AB - CONTEXT: Nivolumab, an anti-PD1 immune control point inhibitor, is the first treatment that has improved the overall survival of patients after first-line metastatic renal cell carcinoma in 2015. Over the past two years, a large number of trials on these treatments and the interest of associations are being evaluated. OBJECTIVE: In this article, we propose to summarize the clinical development of checkpoint inhibitors to assess the direction of clinical research in this area. DOCUMENTARY SOURCE: A systematic review of the literature was performed in PubMed/Medline database and Meeting Library Asco by searching for articles in French or English published on immunotherapy in renal cell carcinoma. The research was limited to abstracts and articles published from 2014 to 2017. SELECTION OF TRIALS: We identified 349 publications and abstracts and selected 17 references from prospective studies. RESULTS: Recent data on checkpoint inhibitors, as well as their combination with tyrosine kinase inhibitors or with anti-angiogenic agents or with indoleamine 2, 3-dioxygenase 1 in renal cell carcinoma and the latest advances in vaccine therapy have been reported. CONCLUSION: In 2017, immunotherapy combined with other treatments is likely to lead to a paradigm shift in the clinical management of patients. The combination of nivolumab and ipilimumab in the first line will revolutionize the therapeutic management of patients with metastatic renal cell carcinoma. PMID- 29339142 TI - [Comment on "Open prostatectomy versus 180-W XPS GreenLight laser vaporization: Long-term functional outcome for prostatic adenomas >80g" (Lanchon, in press )]. PMID- 29339143 TI - Gene silencing reveals multiple functions of Na+/K+-ATPase in the salmon louse (Lepeophtheirus salmonis). AB - Na+/K+-ATPase has a key function in a variety of physiological processes including membrane excitability, osmoregulation, regulation of cell volume, and transport of nutrients. While knowledge about Na+/K+-ATPase function in osmoregulation in crustaceans is extensive, the role of this enzyme in other physiological and developmental processes is scarce. Here, we report characterization, transcriptional distribution and likely functions of the newly identified L. salmonis Na+/K+-ATPase (LsalNa+/K+-ATPase) alpha subunit in various developmental stages. The complete mRNA sequence was identified, with 3003 bp open reading frame encoding a putative protein of 1001 amino acids. Putative protein sequence of LsalNa+/K+-ATPase revealed all typical features of Na+/K+ ATPase and demonstrated high sequence identity to other invertebrate and vertebrate species. Quantitative RT-PCR analysis revealed higher LsalNa+/K+ ATPase transcript level in free-living stages in comparison to parasitic stages. In situ hybridization analysis of copepodids and adult lice revealed LsalNa+/K+ ATPase transcript localization in a wide variety of tissues such as nervous system, intestine, reproductive system, and subcuticular and glandular tissue. RNAi mediated knock-down of LsalNa+/K+-ATPase caused locomotion impairment, and affected reproduction and feeding. Morphological analysis of dsRNA treated animals revealed muscle degeneration in larval stages, severe changes in the oocyte formation and maturation in females and abnormalities in tegmental glands. Thus, the study represents an important foundation for further functional investigation and identification of physiological pathways in which Na+/K+-ATPase is directly or indirectly involved. PMID- 29339144 TI - Addressing barriers to effective cancer immunotherapy with nanotechnology: achievements, challenges, and roadmap to the next generation of nanoimmunotherapeutics. AB - Cancer is a complex systemic disorder that affects many organs and tissues and arises from the altered function of multiple cellular and molecular mechanisms. One of the systems malfunctioning in cancer is the immune system. Restoring and improving the ability of the immune system to effectively recognize and eradicate cancer is the main focus of immunotherapy, a topic which has garnered recent and significant interest. The initial excitement about immunotherapy, however, has been challenged by its limited efficacy in certain patient populations and the development of adverse effects such as therapeutic resistance and autoimmunity. At the same time, a number of advances in the field of nanotechnology have sought to address the challenges faced by modern immunotherapeutics and allow these therapeutic strategies to realize their full potential. This endeavour requires an understanding of not only the immunological barriers in cancer but also the mechanisms by which modern technologies and immunotherapeutics modulate the function of the immune system. Herein, we summarize the major barriers relevant to cancer immunotherapy and review current progress in addressing these obstacles using various approaches and clinically approved therapies. We then discuss the remaining challenges and how they can be addressed by nanotechnology. We lay out translational considerations relevant to the therapies described and propose a framework for the development of next-generation nanotechnology-enabled immunotherapies. PMID- 29339146 TI - Microspheres as intraocular therapeutic tools in chronic diseases of the optic nerve and retina. AB - Pathologies affecting the optic nerve and the retina are one of the major causes of blindness. These diseases include age-related macular degeneration (AMD), diabetic retinopathy (DR) and glaucoma, among others. Also, there are genetic disorders that affect the retina causing visual impairment. The prevalence of neurodegenerative diseases of the posterior segment is increased as most of them are related with the elderly. Even with the access to different treatments, there are some challenges in managing patients suffering retinal diseases. One of them is the need for frequent interventions. Also, an unpredictable response to therapy has suggested that different pathways may be playing a role in the development of these diseases. The management of these pathologies requires the development of controlled drug delivery systems able to slow the progression of the disease without the need of frequent invasive interventions, typically related with endophthalmitis, retinal detachment, ocular hypertension, cataract, inflammation, and floaters, among other. Biodegradable microspheres are able to encapsulate low molecular weight substances and large molecules such as biotechnological products. Over the last years, a large variety of active substances has been encapsulated in microspheres with the intention of providing neuroprotection of the optic nerve and the retina. The purpose of the present review is to describe the use of microspheres in chronic neurodegenerative diseases affecting the retina and the optic nerve. The advantage of microencapsulation of low molecular weight drugs as well as therapeutic peptides and proteins to be used as neuroprotective strategy is discussed. Also, a new use of the microspheres in the development of animal models of neurodegeneration of the posterior segment is described. PMID- 29339147 TI - Neural signatures for active maintenance and interference during working memory updating. AB - Although working memory (WM) is amongst the most studied neurocognitive functions, temporal patterns of its component processes are not fully understood. We examined the neural underpinnings of active maintenance and interference management in the n-back task by manipulating load (1-back vs 3-back) and including so-called lure stimuli. ERPs of 27 young adults revealed that the 1 back condition enabling active maintenance showed a positive slow wave (PSW) prior to the next stimulus (-600-0 ms) and augmented P2 (190-290 ms) and P3b (330 430 ms) responses after the stimulus appeared, albeit the latter effects were driven by the initial PSW. Moreover, PSW amplitude correlated negatively with reaction time in the 1-back condition. Responses to lures showed interference, accompanied with different ERP effects for the two load levels. Our results support the view that PSW reflects efficient WM maintenance and suggest two distinct neuronal correlates for interference in WM. PMID- 29339148 TI - Biochemical characterization of Campylobacter jejuni PNPase, an exoribonuclease important for bacterial pathogenicity. AB - Bacteria need to promptly respond to environmental changes. Ribonucleases (RNases) are key factors in the adaptation to new environments by enabling a rapid adjustment in RNA levels. The exoribonuclease polynucleotide phosphorylase (PNPase) is essential for low-temperature cell survival, affects the synthesis of proteins involved in virulence and has an important role in swimming, cell adhesion/invasion ability, and chick colonization in C. jejuni. However, the mechanism of action of this ribonuclease is not yet known. In this work we have characterized the biochemical activity of C. jejuni PNPase. Our results demonstrate that Cj-PNP is a processive 3' to 5' exoribonuclease that degrades single-stranded RNAs. Its activity is regulated according to the temperature and divalent ions. We have also shown that the KH and S1 domains are important for trimerization, RNA binding, and, consequently, for the activity of Cj-PNP. These findings will be helpful to develop new strategies for fighting against C. jejuni and may be extrapolated to other foodborne pathogens. PMID- 29339149 TI - SkinEthicTM RHE for in vitro evaluation of skin irritation of medical device extracts. AB - According to ISO 10993 standards for biocompatibility of medical devices, skin irritation is one of the three toxicological endpoints to be always addressed in a biological risk assessment. This work presents a new protocol to assess this endpoint in vitro rather than in vivo. The protocol was adapted to medical devices extracts from the OECD TG 439 with the SkinEthicTM RHE model as test system. It was challenged with irritant chemicals, Sodium Dodecyl Sulfate, Lactic Acid and Heptanoic Acid spiked in polar solvents, sodium chloride solution or phosphate buffer saline and non-polar solvent, Sesame Oil. Cell viability measured by MTT reduction after 24 h exposure was used as readout. Quantification of IL-1alpha release as secondary readout did not increased performance. Samples of heat-pressed polyvinyl chloride (PVC) and silicone sheets infused with or without known irritant (4% Genapol-X80, 6% Genapol-X100 and 15% SDS) were tested after extraction in polar and non-polar solvents. Medical device extracts are classified irritant when the cell viability is inferior or equal to 50%, compared to the negative controls tissues, in at least one extraction solvent. The correct classification of all the samples confirmed the good performance of this new protocol for in vitro skin irritation of medical devices extracts with the SkinEthicTM RHE model. Seven naive laboratories were trained in prevision of the Round Robin Study to evaluate Reconstructed Human Epidermis (RhE) models as in vitro skin irritation test for detection of irritant potential in medical device extracts. PMID- 29339145 TI - Ocular delivery of proteins and peptides: Challenges and novel formulation approaches. AB - The impact of proteins and peptides on the treatment of various conditions including ocular diseases over the past few decades has been advanced by substantial breakthroughs in structural biochemistry, genetic engineering, formulation and delivery approaches. Formulation and delivery of proteins and peptides, such as monoclonal antibodies, aptamers, recombinant proteins and peptides to ocular tissues poses significant challenges owing to their large size, poor permeation and susceptibility to degradation. A wide range of advanced drug delivery systems including polymeric controlled release systems, cell-based delivery and nanowafers are being exploited to overcome the challenges of frequent administration to ocular tissues. The next generation systems integrated with new delivery technologies are anticipated to generate improved efficacy and safety through the expansion of the therapeutic target space. This review will highlight recent advances in formulation and delivery strategies of protein and peptide based biopharmaceuticals. We will also describe the current state of proteins and peptides based ocular therapy and future therapeutic opportunities. PMID- 29339150 TI - Altered function of neuronal L-type calcium channels in ageing and neuroinflammation: Implications in age-related synaptic dysfunction and cognitive decline. AB - The rapid developments in science have led to an increase in human life expectancy and thus, ageing and age-related disorders/diseases have become one of the greatest concerns in the 21st century. Cognitive abilities tend to decline as we get older. This age-related cognitive decline is mainly attributed to aberrant changes in synaptic plasticity and neuronal connections. Recent studies show that alterations in Ca2+ homeostasis underlie the increased vulnerability of neurons to age-related processes like cognitive decline and synaptic dysfunctions. Dysregulation of Ca2+ can lead to dramatic changes in neuronal functions. We discuss in this review, the recent advances on the potential role of dysregulated Ca2+ homeostasis through altered function of L-type voltage gated Ca2+ channels (LTCC) in ageing, with an emphasis on cognitive decline. This review therefore focuses on age-related changes mainly in the hippocampus, and with mention of other brain areas, that are important for learning and memory. This review also highlights age-related memory deficits via synaptic alterations and neuroinflammation. An understanding of these mechanisms will help us formulate strategies to reverse or ameliorate age-related disorders like cognitive decline. PMID- 29339151 TI - Practical considerations for obtaining high quality quantitative computed tomography data of the skeletal system. AB - Quantitative CT (QCT) analysis involves the calculation of specific parameters such as bone volume and density from CT image data, and can be a powerful tool for understanding bone quality and quantity. However, without careful attention to detail during all steps of the acquisition and analysis process, data can be of poor- to unusable-quality. Good quality QCT for research requires meticulous attention to detail and standardization of all aspects of data collection and analysis to a degree that is uncommon in a clinical setting. Here, we review the literature to summarize practical and technical considerations for obtaining high quality QCT data, and provide examples of how each recommendation affects calculated variables. We also provide an overview of the QCT analysis technique to illustrate additional opportunities to improve data reproducibility and reliability. Key recommendations include: standardizing the scanner and data acquisition settings, minimizing image artifacts, selecting an appropriate reconstruction algorithm, and maximizing repeatability and objectivity during QCT analysis. The goal of the recommendations is to reduce potential sources of error throughout the analysis, from scan acquisition to the interpretation of results. PMID- 29339152 TI - Biogenic triamine and tetraamine activate core catalytic ability of Tetrahymena group I ribozyme in the absence of its large activator module. AB - Group I intron ribozymes share common core elements that form a three-dimensional structure responsible for their catalytic activity. This core structure is unstable without assistance from additional factors that stabilize its tertiary structure. We examined biogenic triamine and tetraamine and also their fragments for their abilities to stabilize a structurally unstable group I ribozyme, DeltaP5 ribozyme, derived from the Tetrahymena group I intron ribozyme by deleting its large activator module. Biogenic triamine (spermidine) and tetraamine (spermine) efficiently activated the DeltaP5 ribozyme under conditions where the ribozyme was virtually inactive. These observations suggested that polyamines are promising small molecule modulators to activate and possibly inhibit the core catalytic ability of group I ribozymes. PMID- 29339153 TI - TEMPORARY REMOVAL: Inhibition of COX-2 and 5-LOX regulates the progression of colorectal cancer by promoting PTEN and suppressing PI3K/AKT pathway. AB - The publisher regrets that this article has been temporarily removed. A replacement will appear as soon as possible in which the reason for the removal of the article will be specified, or the article will be reinstated. The full Elsevier Policy on Article Withdrawal can be found athttps://www.elsevier.com/about/our-business/policies/article-withdrawal. PMID- 29339154 TI - A new hepatitis B virus e antigen-negative strain gene used as a reference sequence in an animal model. AB - Infection with hepatitis B virus (HBV) e-antigen (HBeAg)-negative strains is increasingly prevalent. Currently, detailed information of the obtained natural HBV strain is not available except for the B genotype and HBeAg-negative. The aim of the present study was to characterize the natural genetic variation of the HBeAg-negative strain and investigate its function. The genic sequence was determined using Sanger sequencing, and compared to related sequences using alignment and phylogenetic analysis. In vivo, virus-specific serum markers were investigated in CBA/CaJ mice. The sequence had a full genome length of 3215 nucleotides. Sites 122, 125, 127, and 160 in S regions were identified as lysine, threonine, proline, and lysine respectively. The main four point variants including A1762T, G1764A, G1896A, and G1899A were detected in the full-length genome. The genotype of the sequence was B, with sub-genotype B2 and serological subtype adw2. The characterize of the natural genetic variation strain showed no reported drug-resistant variant in P region and no reported immune escape site in S region. The strain will increase viral replication and infection for mutations A1762T and G1764A in the basal core promoter region, and mutations G1896A and G1899A in the pre-core region. The G1896A variant resulted in a premature stop codon and abolished HBeAg expression. HBsAg persisted for 26 weeks and HBeAg was still negative in CBA/CaJ mice. The present sequence is representative of the HBeAg-negative genome and may serve as a valuable reference for studying HBeAg negative strains. The present findings were successfully verified in CBA/CaJ mice, demonstrating good applicability of the sequence. PMID- 29339155 TI - Truncated CD200 stimulates tumor immunity leading to fewer lung metastases in a novel Wistar rat metastasis model. AB - CD200 mediates immunosuppression in immune cells that express its receptor, CD200R. There are two CD200 variants; truncated CD200 that lacks the part of N terminal sequence necessary for CD200R binding (CD200S) and full-length CD200 (CD200L). We established a novel lung metastasis model by subcutaneously transplanting C6 glioma cells into the backs of neonatal Wistar rats. All transplanted rats developed large back tumors, nearly 90% of which bore lung metastases. To compare the effects of CD200S and CD200L on tumor immunity, CD200L (C6-L)- or CD200S (C6-S)-expressing C6 cells were similarly transplanted. The results showed that 100% of rats with C6-L tumors developed lung metastases, while metastases were found in only 44% of rats with C6-S tumors (n = 25). Tumors disappeared in approximately 20% of the C6-S-bearing rats, and these animals evaded death 180 d after transplantation, while all C6-L tumor-bearing rats died after 45 d. Next generation sequencing revealed that C6-S tumors expressed chemokines and granzyme B at much higher levels than C6-L tumors. Flow cytometry revealed that C6-S tumors contained more dead cells and more CD45+ cells, including natural killer cells and CD8+ lymphocytes. In particular, multiple subsets of dendritic cells expressing CD11c, MHC class II, CD8, and/or CD103 were more abundant in C6-S than in C6-L tumors. These results suggested that CD200S induced the accumulation of multiple dendritic cell subsets that activated cytotoxic T lymphocytes, leading to the elimination of metastasizing tumor cells. PMID- 29339156 TI - Structure and function of cytoplasmic serine hydroxymethyltransferase from Pichia pastoris. AB - Serine hydroxymethyltransferase (SHMT) catalyzes the interconversion of serine and glycine, which is crucial for one carbon metabolism. Here, we report the first crystal structure of cytoplasmic SHMT from Pichia pastoris (pcSHMT) diffracted to 2.5 A resolution in space group C2221. PcSHMT was a contaminant with our target protein expressed in Pichia pastoris and confirmed by mass spectrometry. The overall structure of pcSHMT is similar to Human mitochondrial SHMT and different to E. coli SHMT. Interestingly, the oligomerization of pcSHMT expressed in eukaryotic or prokaryotic system differs significantly and is regulated by pyridoxal-5'-phosphate. Our results revealed a close evolutionary relationship between Pichia pastoris and Human mitochondria. PMID- 29339157 TI - Drastic stability change of X-X mismatch in d(CXG) trinucleotide repeat disorders under molecular crowding condition. AB - The trinucleotide repeat d(CXG) (X = A, C, G or T) is the most common sequence causing repeat expansion disorders. The formation of non-canonical structures, such as hairpin structures with X-X mismatches, has been proposed to affect gene expression and regulation, which are important in pathological studies of these devastating neurological diseases. However, little information is available regarding the thermodynamics of the repeat sequence under crowded cellular conditions where many non-canonical structures such as G-quadruplexes are highly stabilized, while duplexes are destabilised. In this study, we investigated the different stabilities of X-X mismatches in the context of internal d(CXG) self complementary sequences in an environment with a high concentration of cosolutes to mimic the crowding conditions in cells. The stabilities of full-matched duplexes and duplexes with A-A, G-G, and T-T mismatched base pairs under molecular crowding conditions were notably decreased compared to under dilute conditions. However, the stability of the DNA duplex with a C-C mismatch base pair was only slightly destabilised. Investigating different stabilities of X-X mismatches in d(CXG) sequences is important for improving our understanding of the formation and transition of multiple non-canonical structures in trinucleotide repeat diseases, and may provide insights for pathological studies and drug development. PMID- 29339158 TI - Myosin XI localizes at the mitotic spindle and along the cell plate during plant cell division in Physcomitrella patens. AB - Cell division is a fundamental biological process that has been extensively investigated in different systems. Similar to most eukaryotic cells, plant cells assemble a mitotic spindle to separate replicated chromosomes. In contrast, to complete cell division, plant cells assemble a phragmoplast, which is composed of aligned microtubules and actin filaments. This structure helps transport vesicles containing new cell wall material, which then fuse to form the cell plate; the cell plate will expand to create the new dividing cell wall. Because vesicles are known to be transported by myosin motors during interphase, we hypothesized this could also be the case during cell division and we investigated the localization of the plant homologue of myosin V - myosin XI, in cell division. In this work, we used the protonemal cells of the moss Physcomitrella patens as a model, because of its simple cellular morphology and ease to generate transgenic cell lines expressing fluorescent tagged proteins. Using a fluorescent protein fusion of myosin XI, we found that, during mitosis, this molecule appears to associate with the kinetochores immediately after nuclear envelope breakdown. Following metaphase, myosin XI stays associated with the spindle's midzone during the rest of mitosis, and when the phragmoplast is formed, it concentrates at the cell plate. Using an actin polymerization inhibitor, latrunculin B, we found that the association of myosin XI with the mitotic spindle and the phragmoplast are only partially dependent on the presence of filamentous actin. We also showed that myosin XI on the spindle partially overlaps with a v-SNARE vesicle marker but is not co-localized with the endoplasmic reticulum and a RabA vesicle marker. These observations suggest an actin-dependent and an actin-independent behavior of myosin XI during cell division, and provide novel insights to our understanding of the function of myosin XI during plant cell division. PMID- 29339159 TI - Analysis of the interactions between GMF and Arp2/3 complex in two binding sites by molecular dynamics simulation. AB - The Arp2/3 complex plays a key role in nucleating actin filaments branching. The glia maturation factor (GMF) competes with activators for interacting with the Arp2/3 complex and initiates the debranching of actin filaments. In this study, we performed a comparative analysis of interactions between GMF and the Arp2/3 complex and identified new amino acid residues involved in GMF binding to the Arp2/3 complex at two separate sites, revealed by X-ray and single particle EM techniques. Using molecular dynamics simulations we demonstrated the quantitative and qualitative changes in hydrogen bonds upon binding with GMF. We identified the specific amino acid residues in GMF and Arp2/3 complex that stabilize the interactions and estimated the mean force profile for the GMF using umbrella sampling. Phylogenetic and structural analyses of the recently defined GMF binding site on the Arp3 subunit indicate a new mechanism for Arp2/3 complex inactivation that involves interactions between the Arp2/3 complex and GMF at two binding sites. PMID- 29339160 TI - Overstretching partially alkyne functionalized dsDNA using near infrared optical tweezers. AB - The force-extension behaviour of synthesized double-stranded DNAs (dsDNAs) designed to have 2.1% or 6.6% of the thymine bases alkyne functionalized was studied using near infrared (NIR) optical tweezers. Measurements were carried out on substrates with and without flurophores covalently attached to the alkyne moiety over an extended force range (F=0-70 pN) and results were compared to those obtained from an unmodified control. In accordance with earlier work [1] (measured over a force range F=0-5 pN), the force-extension of the dsDNA containing 2.1% modified-bases agreed well with that of the control. By contrast, the force-extension of the dsDNA containing 6.6% modified-bases showed an increasing deviation from that of the control as the dsDNA extension approached the molecule's contour length. These results indicate that incorporating alkyne functionalized bases can modify the mechanical properties of the dsDNA and that degree of functionalization should be carefully considered if a fluorescent mechanical analogue is required. A discrepancy between 1) the control dsDNA force extension measured in Ref. [1] and that measured here and 2) dsDNA extensions carried out on the same duplex at different laser powers was noted; this was attributed to beam heating by the NIR trapping laser which was estimated to raise the local temperature at the optical traps by DeltaT~10-15 degrees C. PMID- 29339162 TI - A method to improve prediction of secondary structure for large single RNA sequences. AB - The function of a particular RNA molecule within an organic system is principally determined by its structure. The current physical methods available for structure determination are time consuming and expensive. Hence, computational methods for structure prediction are often used. The prediction of the structure of a large single sequence of RNA needs a lot of research work. In the present work, a method is introduced to improve the prediction of large single sequence RNA secondary structure obtained by Mfold program using the concept of minimum free energy. The Mfold program contains a constraint option that allows forcing some helices in the predicted structure. In our method, some of the firstly formed hairpins that are expected, by a statistical study, to be present in the real structure are forced in the Mfold predicted structure. The results show improvement, toward the real structure, in the Mfold predicted structure and this gives evidence to the RNA kinetic folding. PMID- 29339161 TI - A new genetically engineered mouse model of choroid plexus carcinoma. AB - Choroid plexus carcinomas (CPCs) are highly malignant brain tumours predominantly found in children and associated to poor prognosis. Improved therapy for these cancers would benefit from the generation of animal models. Here we have created a novel mouse CPC model by expressing a stabilised form of c-Myc (MycT58A) and inactivating Trp53 in the choroid plexus of newborn mice. This induced aberrant proliferation of choroid plexus epithelial cells, leading to aggressive tumour development and death within 150 days. Choroid plexus tumours occurred with a complete penetrance in all brain ventricles, with prevalence in the lateral and fourth ventricles. Histological and cellular analysis indicated that these tumours were CPCs resembling their human counterparts. Comparison of gene expression profiles of CPCs and non-neoplastic tissues revealed profound alterations in cell cycle regulation and DNA damage responses, suggesting that dysregulation of cell division and DNA checkpoint pathways may represent key vulnerabilities. This novel animal model of CPC provides an invaluable tool to elucidate the mechanism of CPC formation and to develop successful therapies against this devastating paediatric cancer. PMID- 29339163 TI - Early process development of API applied to poorly water-soluble TBID. AB - Finding and optimising of synthesis processes for active pharmaceutical ingredients (API) is time consuming. In the finding phase, established methods for synthesis, purification and formulation are used to achieve a high purity API for biological studies. For promising API candidates, this is followed by pre clinical and clinical studies requiring sufficient quantities of the active component. Ideally, these should be produced with a process representative for a later production process and suitable for scaling to production capacity. This work presents an overview of different approaches for process synthesis based on an existing lab protocol. This is demonstrated for the production of the model drug 4,5,6,7-tetrabromo-2-(1H-imidazol-2-yl) isoindolin-1,3-dione (TBID). Early batch synthesis and purification procedures typically suffer from low and fluctuating yields and purities due to poor process control. In a first step the literature synthesis and purification procedure was modified and optimized using solubility measurements, targeting easier and safer processing for consecutive studies. PMID- 29339164 TI - NANOS2 acts as an intrinsic regulator of gonocytes-to-spermatogonia transition in the murine testes. AB - In the male mouse embryos, the primordial germ cells colonize the developing testes at E11.5. These resident germ cells termed gonocytes are the predecessors of spermatogonial stem cells (SSCs) and differentiating spermatogonia. Both of which are essential for male fertility where the former maintains the continuity of spermatogenesis and the latter generates pioneering waves of spermatozoa. Therefore the timely initiation of gonocytes-to-spermatogonia transition (GST) is an important process during which the cell fates of gonocytes might be segregated. However, it is unknown whether gonocytes are composed of a heterogeneous mixture of germ cells with distinct differentiation potentials during GST. Here, we find that gonocytes exhibit heterogeneity in terms of the expression pattern of at least three early spermatogonial marker genes namely Nanos2, Stra8 and Gfra1. NANOS2 expression levels are negatively correlated with those of STRA8 and GFRA1 before GST, while positive correlation with GFRA1 is established after GST. We further find that overexpression of NANOS2 results in the repression of GFRA1 and PLZF in gonocytes, leading to a delay in GST. On the other hand, loss of NANOS2 results in the up-regulation of GFRA1 and PLZF, indicating a precocious entry of GST. Taken together, our data suggest that NANOS2 functions as an intrinsic timekeeper of GST in the mouse testes. PMID- 29339165 TI - Safety and Efficacy of Transcatheter Left Atrial Appendage Closure for Stroke Prevention in Patients with Atrial Fibrillation. AB - Atrial Fibrillation (AF) is associated with a substantial risk of thromboembolic stroke. Although long-term treatment with warfarin or the non-vitamin K oral anticoagulants can reduce this risk, such therapy is underutilized, and safe and consistent long-term treatment can be challenging. Transcatheter left atrial appendage (LAA) closure is an emerging alternative to long-term oral anticoagulation. Long-term follow-up of randomized clinical trials demonstrate that Watchman LAA closure provides significant reductions in hemorrhagic stroke, cardiovascular death, and all-cause mortality compared with continued warfarin therapy. Major bleeding is also reduced compared with continued warfarin therapy once the post-implant pharmacologic regimen is completed. This review summarizes the current dataset for the safety and efficacy of transcatheter LAA closure, and highlights the gaps in evidence and future directions for clinical research. PMID- 29339166 TI - Anticoagulation in Acute Coronary Syndrome-State of the Art. AB - Early intravenous anticoagulation is the corner stone treatment of patients admitted with an acute coronary syndrome: it antagonizes the ongoing coronary thrombosis and facilitates the percutaneous coronary intervention, hence a reduction of mortality and acute stent thrombosis. Unfractionated heparin, enoxaparin, bivalirudin and fondaparinux have been extensively studied in large randomized control trials and meta-analyses with the same objective: reducing the ischemic burden without hiking hemorrhagic events. This conundrum is evolving along the generalization of the radial-artery access, the use of potent P2Y12 and the trend towards a tailored approach regarding the ischemic and bleeding balance. In this systematic review, we aimed at presenting the evidence based data and strategies for each anticoagulant in the setting of acute coronary syndrome with and without ST-segment elevation. PMID- 29339167 TI - Comparison of Anticoagulant Therapy for Atrial Fibrillation - Novel Oral Anticoagulants Versus Vitamin K Antagonists. AB - In patients with non-valvular atrial fibrillation (NVAF), oral anticoagulation is important for prevention of stroke and systemic embolism (SE). While Vitamin K antagonists (VKAs) have historically been the standard of care, these medications are limited by numerous food and drug interactions with onerous requirements for frequent monitoring and dose adjustments. Over the past decade, several novel oral anticoagulants (NOACs) have been developed to directly inhibit factor IIa/thrombin (dabigatran) or activated factor X (apixaban, rivaroxaban, edoxaban). These medications have been shown to be at least as effective as warfarin for stroke prevention in NVAF with more favorable safety profiles. However, their advantages are underscored by a lack of specific antidotes and assays quantifying their anticoagulant effects. This paper addresses the use of NOACs compared to VKAs in patients with NVAF, with a special focus on high-risk populations, including the elderly, those with renal disease, diabetes mellitus, coronary artery disease, and previous stroke. The current literature surrounding special clinical scenarios including the treatment of bleeding, perioperative management, and the use of NOACs in cardioversion and catheter ablation will be also discussed. PMID- 29339168 TI - Selection of P2Y12 Inhibitor in Percutaneous Coronary Intervention and/or Acute Coronary Syndrome. AB - The P2Y12 receptor plays a critical role in the amplification of platelet aggregation in response to various agonists and stable thrombus generation at the site of vascular injury leading to deleterious ischemic complications. Therefore, treatment with a P2Y12 receptor blocker is a major effective strategy to prevent ischemic complications in high-risk patients with acute coronary syndrome (ACS) and patients undergoing percutaneous coronary intervention (PCI). The determination of optimal platelet inhibition is based on maximizing antithrombotic properties while minimizing bleeding risk and is critically dependent on individual patient's propensity for thrombotic and bleeding risks. Immediately after ACS and during PCI, where highly elevated thrombotic activity is present, a loading dose administration with a potent P2Y12 receptor blocker such as ticagrelor or prasugrel is preferred. In stable coronary artery disease patients undergoing PCI, clopidogrel is widely used. In addition, in patients with ST-segment elevation myocardial infraction who cannot take oral medications, a fast acting intravenous glycoprotein IIb/IIIa inhibitor or P2Y12 receptor blocker, cangrelor, may add clinical benefits. During long term therapy, a strategy that prevents ischemic risk while avoiding excessive bleeding risk is similarly desired. Although up to one year dual antiplatelet therapy (DAPT) is recommended in patients undergoing elective stenting, the available data support the anti-ischemic benefit of prolonged DAPT (more than1 year) in patients with prior MI. In addition to the DAPT risk calculator tool, future risk assessment methods that analyze intrinsic thrombogenicity and atherosclerotic coronary burden may further identify the optimal candidate for prolonged DAPT to improve net clinical outcomes. PMID- 29339169 TI - The Timing of P2Y12 Inhibitor Initiation in the Treatment of ACS? Does the Evidence Exist in This Era? AB - The majority of acute coronary syndromes (ACS) are well characterized as a consequence of plaque rupture and subsequent thrombosis. Antiplatelet agents targeting inhibition of P2Y12 receptors on the platelets have been shown to reduce future risk of cardiovascular events in this patient population. However, the timing of initiation of these agents, in particular, in patients managed with an invasive strategy with percutaneous coronary interventions (PCI) is debatable. The data supporting pretreatment with antiplatelet agents prior to PCI in ACS patients date to trials performed >15 years ago, wherein the time to PCI was >5 days, and hence, the utility of pretreatment with these agents in the contemporary era remains uncertain. In addition, newer antiplatelet agents such as prasugrel, ticagrelor, and cangrelor with rapid onset of action, pose a challenge for justification of oral antiplatelet pretreatment in patients with ACS. In this review article, we will discuss the pharmacokinetic properties of four different antiplatelet agents (clopidogrel, prasugrel, ticagrelor, cangrelor), as well as major randomized clinical trials assessing safety and efficacy of their role as pretreatment agents in patients presenting with ACS. PMID- 29339170 TI - Sub-anesthetic doses of ketamine attenuate nicotine self-administration in rats. AB - Smoking cessation strategies are of prime medical importance. Despite availability of various pharmacological agents in combating addiction to nicotine, more effective medications are needed. Based on recent findings, the glutamatergic system in the brain may provide novel targets. Here, we evaluated the effects of acute administration of sub-anesthetic doses of ketamine, an NMDA receptor antagonist, in both male and female Sprague-Dawley rats trained to self administer nicotine. Animals were injected subcutaneously with 5, 7.5 and 10 mg/kg ketamine or saline and the effects on the number of intravenous nicotine infusions during a 45 min session was measured. Ketamine treatment significantly reduced nicotine self-administration in a dose-dependent manner. Moreover, a differential sensitivity between the sexes was observed as male rats responded to a lower dose of ketamine and with higher magnitude of effect than female rats. It is concluded that glutamatergic receptor manipulations may offer a novel and potentially sex-dependent intervention in nicotine addiction. PMID- 29339171 TI - DNA methylation level of the neprilysin promoter in Alzheimer's disease brains. AB - Neprilysin (NEP), a membrane-bound metalloprotease, has been shown to play an essential role in the clearance of amyloid beta (Abeta) peptides. Previous studies have reported that NEP expression is downregulated in the normal aging brain as well as in the Alzheimer's disease (AD) brain, providing evidence that the downregulation of NEP expression contributes to the age-dependent deposition of Abeta-containing plaques, a pathological hallmark of AD. However, the mechanisms underlying the downregulation remain unclear. In this study, we explored the relationship between DNA methylation status of CpG islands in the NEP promoter and its expression level in AD brains. We performed pyrosequencing analyses to detect the DNA methylation level in 31 postmortem AD brains and 40 normal control brains. All 30 CpG sites showed no clear difference in methylation level. To further focus on methylation changes specific to neuronal cells, we performed methylation array experiments using neuronal nuclei from postmortem brains and found no clear difference in the methylation level between AD and normal control samples. Our detailed analyses, with a substantial number of brain samples, provide the first convincing evidence that DNA methylation of the NEP promoter is not involved in AD development and progression. PMID- 29339172 TI - Self-relevant processing of stranger's name in Chinese society: Surname matters. AB - Stimuli that have been frequently used to induce self-relevant processing are highly familiar to individuals (e.g., self-name [SN] and self-face). One's surname is an important form of collective self-concept; it represents the line of ancestry, and is psychologically salient. According to this concept, a stranger with the same surname may also elicit salient self-relevant processing, despite unfamiliarity; however, this has not yet been directly investigated. The present study adopted a three-stimulus oddball paradigm and multimodal electroencephalography to study the potential self-relevant processing of such stimuli. Behavioral results indicated that same-surname unfamiliar (SSU) names were rated more self-relevant than different-surname unfamiliar (DSU) names, although they were rated equally unfamiliar to subjects. Analysis of EEG data showed similar P2 enhancement in response to SN and SSU when compared to DSU. In contrast, the self-relevant effect on P3 amplitudes and theta synchronization decreased linearly from SN, SSU, to DSU conditions. Thus, both the behavioral and electrophysiological data indicate that unfamiliar names with the same surname can evoke reliable self-relevant processing. PMID- 29339173 TI - Neuroprotective effects of topiramate and memantine in combination with hypothermia in hypoxic-ischemic brain injury in vitro and in vivo. AB - Hypoxic-ischemic encephalopathy (HIE) is a major cause of perinatal mortality and subsequent severe neurological sequelae. Mild hypothermia is a standard therapy for HIE, but is used only in selected Reference Centers and in neonates >1800 g. Since neuronal death following HIE occurs by a cascade of events triggered by activation of glutamate receptors, we used in vitro and in vivo models of HIE to examine whether the AMPA/kainate receptor antagonist topiramate and the NMDA receptor antagonist memantine could exert neuroprotective effects, alone or in combination with hypothermia. For the in vitro experiments, rat organotypic hippocampal slices were exposed to a 30 min duration of oxygen-glucose deprivation (OGD): treatment with topiramate (1 MUM) and memantine (10-30 MUM) or hypothermia (35 degrees C or 32 degrees C) significantly attenuated CA1 damage after 24 h. The combination of hypothermia with topiramate and memantine enhanced their protective effect. For the in vivo experiments, we used 7 day-old rat pups subjected to permanent left common carotid artery occlusion followed by 120 min of hypoxia. Administration of topiramate or memantine (i.p., 20 mg/kg) immediately and 2 h after hypoxia or exposure to hypothermia (32 degrees C for 4 h beginning 1 h after hypoxia) significantly reduced the extent of the resulting infarct. The combination of topiramate or memantine with hypothermia elicited a reduction of the infarct that was greater than that produced by drugs or hypothermia alone. Notably, memantine displayed a higher degree of neuroprotection as compared to topiramate both in vitro and in vivo and, when used alone at 20 mg/kg in vivo, produced a greater reduction in brain damage than observed using topiramate in combination with hypothermia. These results suggest that memantine may be more advantageous than topiramate as a therapeutic agent in neonates with HIE treated with hypothermia. PMID- 29339174 TI - The impact of strabismus surgery on gait pattern in patients with congenital or starting within one year of age strabismus. AB - Strabismus is a common visual disorder that negatively affects walking and balance. Therapeutic interventions for strabismus include strabismus surgery. Few studies investigated the relationship between strabismus surgery and postural control while, to the best of our knowledge, none has been conducted to assess the influence of strabismus surgery on gait. Therefore, the aim of this study was to evaluate the locomotion characteristics over patients with congenital or starting within one year of age strabismus, one month and three months after strabismus surgery. We enrolled 17 patients with a number of motor and sensorial features. Patients underwent an orthoptic and ophthalmological evaluation as well as a biomechanical evaluation before (T0) and after strabismus surgery (T1 at 1 month, and T2 at 3 months). We observed, mostly in T2 evaluation, significant improvements in the spatio-temporal parameters, such as cadence, velocity, swing, stance and double support phases, step and stride length. The kinematic results revealed a significant increase in hip ROM, strongly related to the improvement of gait speed. No significant differences has been observed in knee and ankle joint ROM. The kinetic results revealed a significant increase in the maximum moment at the knee and ankle joints associated with an increase in the maximum ankle power. Our findings suggest that the safety and balance control associated with gait improve in patients with strabismus following surgery. PMID- 29339175 TI - Primary thymic adenocarcinomas: a clinicopathological and immunohistochemical study of 16 cases with emphasis on the morphological spectrum of differentiation. AB - Sixteen cases of primary thymic adenocarcinoma are presented. The patients are 9 men and 7 women between the ages of 22 and 68 years (average, 45 years) who presented with non-specific symptoms including cough, chest pain, and dyspnea. Diagnostic imaging revealed the presence of an anterior mediastinal mass, which was surgically removed in all of the patients. Histologically, none of the tumors was encapsulated and showed different growth patterns including mucinous, non mucinous, and papillary features. The majority of cases showed mixed growth pattern, and the tumor was limited to the mediastinum with only a few cases extending to lymph nodes or pericardium. In two cases, the adenocarcinoma was associated with a thymoma. Immunohistochemical stains were performed, and their positive staining varied depending on the histology of the tumors, showing positive staining in some cases for keratin 7, keratin 20, CEA, CD5, CD117, and CDX-2. PAX8 and TTF-1 were negative in all the tumors. Follow-up information was obtained in 10 patients over a period of 1 to 12 years, indicating that three patients had died within a period of 14 months, one with brain metastasis, while seven patients have remained alive without recurrence. The cases herein described span the spectrum of thymic epithelial tumors and highlight the importance of recognizing this particular type of carcinoma, as it may follow a different outcome and require different treatment options. PMID- 29339176 TI - The absence of class III beta-tubulin is predictive of a favorable response to nab-paclitaxel and gemcitabine in patients with unresectable pancreatic ductal adenocarcinoma. AB - The combined administration of nab-paclitaxel and gemcitabine (nab-P + Gem) is a standard chemotherapy for unresectable pancreatic ductal adenocarcinoma (UR PDAC); thus, a predictive biomarker to identify patients best suited for nab-P + Gem therapy would be useful. Class III beta-tubulin (TUBB3) has been reported to be a predictive marker for taxane resistance in various tumors. However, the correlation between TUBB3 expression and the response to nab-P + Gem in patients with UR-PDAC has not been evaluated. We retrospectively reviewed 75 patients with UR-PDAC who received nab-P + Gem. TUBB3 expression was examined immunohistochemically in specimens obtained by endoscopic ultrasound-guided fine needle aspiration (EUS-FNA). From 67 analyzable specimens that were available for TUBB3 staining, 14 (21%) were negative for TUBB3 immunostaining and 53 (79%) were positive. Patients with negative TUBB3 expression showed a significantly higher disease control rate (100% vs. 64.2%; P = .008) and longer progression-free survival (PFS); (7.1 months vs. 3.7 months; log-rank test, P = .036) than those of patients with positive. Furthermore, negative TUBB3 expression was an independent predictive marker of a prolonged PFS on multivariate analysis (hazard ratio, 2.41; 95% confidence interval, 1.11-5.24; P = .026). Our data indicate that an absence of TUBB3 expression in specimens obtained by EUS-FNA may be a favorable predictive marker of the response to nab-P + Gem in patients with UR PDAC, highlighting its use as a potential new biomarker for treatment optimization. PMID- 29339177 TI - Trends in reporting histological subtyping of renal cell carcinoma: association with cancer center type. AB - Histological classification of renal cell carcinoma (RCC) has become increasingly important for clinical management. We identified 295483 RCC diagnosed from 1998 2014 in the National Cancer Database (NCDB) to examine temporal trends in proportions of RCC with unspecified histology and several specific histologies from the 1998 and 2004 World Health Organization classifications of RCC. Further, multivariable log binomial analysis of 101062 RCC diagnosed from 2010 to 2014 was used to determine whether the association of diagnosing/treating facility type and the proportion of unspecified RCC is independent of patient demographic and clinical factors. Between 1998 and 2014, the proportion of histologically unspecified RCC decreased substantially in all facility types, with the decrease smallest in community programs (from 86.0% to 28.1%) and largest in National Cancer Institute-designated centers (from 85.1% to 9.8%). These decreases were offset by increases in percentages of papillary, clear cell, and chromophobe RCC cases. During 2010 to 2014, relative to community programs, RCCs were 21% less likely to be reported as unspecified histology (adjusted prevalence ratio [aPR] = 0.79; 95% CI, 0.68-0.92) in comprehensive community programs, 32% less likely in integrated network programs (aPR = 0.68; 95% CI, 0.57-0.92) and academic programs (aPR = 0.68; 95% CI, 0.54-0.87), and 63% less likely (aPR = 0.37; 95% CI, 0.26 0.52) in National Cancer Institute -designated programs. These results have implications for the optimal selection of targeted systemic therapies for patients with advanced disease, and for the potential value of cancer registry data in pathology quality improvement programs to promote more rapid and consistent adoption of new classifications of RCC and other neoplasms. PMID- 29339178 TI - The evolving diagnosis of noninvasive follicular thyroid neoplasm with papillary like nuclear features (NIFTP). PMID- 29339179 TI - Primary diffuse leptomeningeal atypical teratoid/rhabdoid tumor diagnosed by cerebrospinal fluid cytology: case report with molecular genetic analysis. AB - Atypical teratoid/rhabdoid tumors (AT/RT) are rare malignant neoplasms that mainly affect infants and young children, and are typically located in the cerebellar hemispheres. These tumors are histologically characterized by varying proportions of rhabdoid cells, and nuclear INI1 immunonegativity. Here, we report a case of a 15-year-old male with primary diffuse leptomeningeal AT/RT. The patient had symptoms similar to those of meningitis. Magnetic resonance imaging revealed leptomeningeal thickening. Cytological examination using cerebrospinal fluid was repeatedly performed and revealed rhabdoid cells with loss of INI1 reactivity, and shortly after, the diagnosis of AT/RT was confirmed by tissue biopsy. Multiplex ligation-dependent probe amplification analysis revealed compound heterozygous microdeletion of the SMARCB1/INI1 locus. Leptomeningeal AT/RT without primary mass is extremely rare - only four cases have been previously reported to date. To the best of our knowledge, this is the first case report of primary leptomeningeal AT/RT with detailed genetic information. PMID- 29339180 TI - Leptin blocks the inhibitory effect of vitamin D on adipogenesis and cell proliferation in 3T3-L1 adipocytes. AB - Recently, we demonstrated high serum leptin and 25(OH)D (calcidiol) in obese animals, with high C/EBPbeta and PPARgamma expression in adipose tissue. Since the role of vitamin D in adipogenesis remains controversial and hyperleptinemia is found in obesity, we asked if leptin could interfere in vitamin D action on adipocytes. Here, we studied the direct effect of these two hormones upon 3T3L1 preadipocytes incubated with or without 1,25(OH)2D (100 nM, 24 h) and with leptin (10-7 M, 4 h later). RT-PCR (VDR and Cyp27b1/1alpha-hydroxylase), western blotting (VDR, Cyp27b1/1alpha-hydroxylase, ObR-b, C/EBPbeta, PPARgamma and Bax content), a cell proliferation assay and an Annexin V-FITC binding assay were performed. Incubation with 1,25(OH)2D decreased Cyp27b1/1alpha-hydroxylase and VDR. Co-incubation of 1,25(OH)2D and leptin did not change Cyp27b1/1alpha hydroxylase and had no additive effect upon the decreased VDR mRNA. Incubation with 1,25(OH)2D decreased C/EBPbeta and PPARgamma. In the cell proliferation assay, 1,25(OH)2D decreased the number of 3T3L1 cells. No changes in OBR-b or apoptotic parameters (Bax and annexin-V) were observed. The 1,25(OH)2D decreased pro-adipogenic factors and proliferation of adipocytes. However, since it inhibits the conversion of 25(OH)D to 1,25(OH)2D and VDR mRNA long-term, it could decrease the vitamin D response in adipocytes, leading to greater adipogenesis. The co-incubation of both hormones, simulating what occurs in obesity, even neutralizing the effect on Cyp27b1/1alpha-hydroxylase, did not change the vitamin D sensitivity but decreased SOCS-3 and pSTAT-3. Thus, an excess of vitamin D and hyperleptinemia could decrease vitamin D sensitivity in adipocytes, contributing to increased adipogenesis. PMID- 29339181 TI - Effects of age on growth in Atlantic bluefin tuna (Thunnus thynnus). AB - Atlantic Bluefin Tuna Thunnus thynnus (ABFT) is considered one of the most important socio-economic species but there is a lack of information on the physiological and molecular processes regulating its growth and metabolism. In the present study, we focused on key molecules involved in growth process. The aim of the present study was to associate molecular markers related to growth with canonical procedures like morphological measurements such as curved fork length (CFL) and round weight (RWT). The ABFT specimens (n = 41) were organized into three different groups A, B and C according to their age. The molecular analysis of liver samples revealed that igf1, igf1r and mTOR genes, involved in growth process, were differentially expressed in relation to the age of the fish. In addition, during the analyzed period, faster growth was evident from 5 to 8 years of age, after that, the growth rate decreased in terms of length yet increased in terms of adipose tissue storage, as supported by the higher fat content in the liver. These results are useful in expanding basic knowledge about the metabolic system of ABFT and provide new knowledge for the aquaculture industry. PMID- 29339182 TI - Interrelationship among annual cycles of sex steroids, corticosterone and body condition in Nyctibatrachus humayuni. AB - Synergism between extrinsic and intrinsic factors is crucial for the seasonality of reproduction. Environmental factors such as photoperiod and temperature activate the hypothalamus-pituitary-gonadal axis leading to the secretion of steroid hormones that are crucial for reproduction. Sex steroids are not only essential for the maturation of gonads, but also for development of secondary sexual characters in males and reproductive behaviour of both the sexes. In the present study, we quantified the urinary testosterone (UTM) and corticosterone (UCM) metabolites in males and urinary estradiol metabolites (UEM) and UCM in females of Nyctibatrachus humayuni for two consecutive years to determine annual and seasonal variation in the levels of sex steroids, corticosterone and body condition index (BCI). The results show that sex steroids were highest during the breeding season and lowest during the non-breeding season in both the sexes. An increase in UTM and UEM was observed in males and females respectively during the breeding season. Testicular histology showed the presence of all stages of spermatogenesis throughout the year indicating that spermatogenesis is potentially continuous. Ovarian histology showed the presence of vitellogenic follicles only during the breeding season indicating that oogenesis is strictly seasonal. In males, UCM levels were highest during the breeding season, while in females their levels were highest just prior to the breeding season. In males, BCI was highest during the pre-breeding season, declined during the breeding season to increase again during the post-breeding season. In females, BCI was comparable throughout the year. In males, UTM levels were positively correlated with UCM levels but negatively correlated with BCI. Interestingly, UEM, UCM and BCI were not correlated in females. These results indicate that N. humayuni exhibits an associated pattern of reproduction. Quantification of urinary progesterone metabolites (UPM) during the breeding season showed UPM levels were higher in post-spawning females, suggesting the significance of progesterone in ovulation. Further, non-invasive enzyme immunoassay has been successfully standardized in N. humayuni for the quantification of urinary metabolites of steroid hormones. PMID- 29339183 TI - Evolution of the growth hormone, prolactin, prolactin 2 and somatolactin family. AB - Growth hormone (GH), prolactin (PRL), prolactin 2 (PRL2) and somatolactin (SL) belong to the same hormone family and have a wide repertoire of effects including development, osmoregulation, metabolism and stimulation of growth. Both the hormone and the receptor family have been proposed to have expanded by gene duplications in early vertebrate evolution. A key question is how hormone receptor preferences have arisen among the duplicates. The first step to address this is to determine the time window for these duplications. Specifically, we aimed to see if duplications resulted from the two basal vertebrate tetraploidizations (1R and 2R). GH family genes from a broad range of vertebrate genomes were investigated using a combination of sequence-based phylogenetic analyses and comparisons of synteny. We conclude that the PRL and PRL2 genes arose from a common ancestor in 1R/2R, as shown by neighboring gene families. No other gene duplicates were preserved from these tetraploidization events. The ancestral genes that would give rise to GH and PRL/PRL2 arose from an earlier duplication; most likely a local gene duplication as they are syntenic in several species. Likewise, some evidence suggests that SL arose from a local duplication of an ancestral GH/SL gene in the same time window, explaining the lack of similarity in chromosomal neighbors to GH, PRL or PRL2. Thus, the basic triplet of ancestral GH, PRL/PRL2 and SL genes appear to be unexpectedly ancient. Following 1R/2R, only SL was duplicated in the teleost-specific tetraploidization 3R, resulting in SLa and SLb. These time windows contrast with our recent report that the corresponding receptor genes GHR and PRLR arose through a local duplication in jawed vertebrates and that both receptor genes duplicated further in 3R, which reveals a surprising asynchrony in hormone and receptor gene duplications. PMID- 29339184 TI - A novel stress hormone response gene in tadpoles of Xenopus tropicalis. AB - Previous work identified a transcribed locus, Str. 34945, induced by the frog stress hormone corticosterone (CORT) in Xenopus tropicalis tails. Because thyroid hormone had no influence on its expression, Str. 34945 was dubbed the first "CORT only" gene known from tadpoles. Here, we examine the genomic annotation for this transcript, hormone specificity, time course of induction, tissue distribution, and developmental expression profile. The location of Str. 34945 on the X. tropicalis genome lies between the genes ush1g (Usher syndrome 1G) and fads6 (fatty acid desaturase 6). A blast search showed that it maps to the same region on the X. laevis genome, but no hits were found in the human genome. Using RNA seq data and conventional reverse transcriptase PCR and sequencing, we show that Str. 34945 is part of the 3' untranslated region of ush1g. We find that CORT but not aldosterone or thyroid hormone treatment induces Str. 34945 in tadpole tails and that expression of Str. 34945 achieves maximal expression within 12-24 h of CORT treatment. Among tissues, Str. 34945 is induced to the highest degree in tail, with lesser induction in lungs, liver, and heart, and no induction in the brain or kidney. During natural metamorphosis, Str. 34945 expression in tails peaks at metamorphic climax. The role of ush1g in metamorphosis is not understood, but the specificity of its hormone response and its expression in tail make ush1g valuable as a marker of CORT-response gene induction independent of thyroid hormone. PMID- 29339185 TI - Dose-response relationship of tryptophan with large neutral amino acids, and its impact on physiological responses in the chick model. AB - Tryptophan (Trp) has been associated with the regulation of several behavioral and physiological processes, through stimulation of serotonergic activity. Tryptophan utilization at the metabolic level is influenced by the competitive carrier system it shares with large neutral amino acids (LNAA). This study was carried out using meat-type chicken as a model, to investigate the dose response effects of Trp/LNAA on fear response (tonic immobility; TI) and hormonal responses, including corticosterone (CORT), serotonin (5-HT), triiodothyronine (T3) and thyroxine (T4). A total of 12 cages (48 birds) were assigned to each of the six experimental groups at 29-42 days of age. Experimental diets were formulated to have incremental levels of Trp/LNAA (0.025, 0.030, 0.035, 0.040, 0.045, and 0.050). The results revealed that, Trp/NAA had no significant effect on growth performance and TI of the birds. However, elevation of Trp/LNAA was concurred with a linear reduction in CORT (P < .0001, r2 = 0.819) and linear increases in 5-HT (P < .0001, r2 = 0.945), T3 (P = .0003, r2 = 0.403) and T4 (P < .0001, r2 = 0.937) levels. In conclusion, the results from the current study demonstrated that, although incremental levels of Trp/LNAA did not affect bird growth performance or fearfulness, it increased 5-HT, T3 and T4, and decreased CORT levels in a linear dose-dependent manner. Manipulation of Trp feeding levels could be applied to manage stressful conditions in birds. PMID- 29339186 TI - Uptake and intracellular fate of cholera toxin subunit b-modified mesoporous silica nanoparticle-supported lipid bilayers (aka protocells) in motoneurons. AB - Cholera toxin B (CTB) modified mesoporous silica nanoparticle supported lipid bilayers (CTB-protocells) are a promising, customizable approach for targeting therapeutic cargo to motoneurons. In the present study, the endocytic mechanism and intracellular fate of CTB-protocells in motoneurons were examined to provide information for the development of therapeutic application and cargo delivery. Pharmacological inhibitors elucidated CTB-protocells endocytosis to be dependent on the integrity of lipid rafts and macropinocytosis. Using immunofluorescence techniques, live confocal and transmission electron microscopy, CTB-protocells were primarily found in the cytosol, membrane lipid domains and Golgi. There was no difference in the amount of motoneuron activity dependent uptake of CTB protocells in neuromuscular junctions, consistent with clathrin activation at the axon terminals during low frequency activity. In conclusion, CTB-protocells uptake is mediated principally by lipid rafts and macropinocytosis. Once internalized, CTB-protocells escape lysosomal degradation, and engage biological pathways that are not readily accessible by untargeted delivery methods. PMID- 29339187 TI - Doxorubicin-loaded dendritic-Fe3O4 supramolecular nanoparticles for magnetic drug targeting and tumor regression in spheroid murine melanoma model. AB - This work evaluates the magnetically-guided delivery of DOX-loaded dendritic Fe3O4 nanoparticles and their tumor regression efficacy in subcutaneous melanoma in C57BL/6 mice. The hematological, biochemical and histopathological parameters were minimally affected. The nanoparticles localized in lungs, liver and spleen suggesting non-specific uptake. However, in tumor-bearing mice, substantially higher localization in magnetically-targeted tumor was observed when compared to passive localization in non-targeted tumor. The animals of treated group showed significantly high iron levels (161 MUg of Fe/mg dry organ weight) in the tumor against the control (<25 MUg of Fe/mg dry organ weight). This high localization led to high concentrations of DOX in the tumor which not only induced significant tumor regression but also arrested further growth. Within 14 days, the average tumor volume was reduced to 55+/-8.3 mm3 (treated) as compared to 4794+/-844 mm3 (control), i.e. ~88-fold decrease. The tumor disappeared by the end of 20th day post-treatment and ~100% survival rate was observed. PMID- 29339188 TI - The enhancement of siPLK1 penetration across BBB and its anti glioblastoma activity in vivo by magnet and transferrin co-modified nanoparticle. AB - In order to enhance the penetration of small interference RNA against the polo like kinase I (siPLK1) across BBB to treat glioblastoma (GBM), transferrin (Tf) modified magnetic nanoparticle (Tf-PEG-PLL/MNP@siPLK1) was prepared. The in vitro experiments indicated that Tf-PEG-PLL/MNP@siPLK1 enhanced the cellular uptake of siPLK1, which resulted in an increase of gene silencing effect and cytotoxicity of Tf-PEG-PLL/MNP@siPLK1 on U87 cells. Besides, Tf-PEG-PLL/MNP@siPLK1 significantly inhibited the growth of U87 glioblastoma spheroids and markedly increased the BBB penetration efficiency of siPLK1 with the application of external magnetic field in in-vitro BBB model. The in vivo experiments indicated that siPLK1 selectively accumulated in the brain tissue, and markedly reduced tumor volume and prolonged the survival time of GBM-bearing mice after Tf-PEG PLL/MNP@siPLK1 was injected to GBM-bearing mice via tail vein. The above data indicated that magnet and transferrin co-modified nanoparticle enhanced siPLK1 penetration across BBB and increased its anti GBM activity in vivo. PMID- 29339189 TI - Magnetic nanoparticles modified-porous scaffolds for bone regeneration and photothermal therapy against tumors. AB - For effectively treating tumor related-bone defects, design and fabrication of multifunctional biomaterials still remain a great challenge. Herein, we firstly fabricated magnetic SrFe12O19 nanoparticles modified-mesoporous bioglass (BG)/chitosan (CS) porous scaffold (MBCS) with excellent bone regeneration and antitumor function. The as-produced magnetic field from MBCS promoted the expression levels of osteogenic-related genes (OCN, COL1, Runx2 and ALP) and the new bone regeneration by activated BMP-2/Smad/Runx2 pathway. Moreover, the SrFe12O19 nanoparticles in MBCS improved the photothermal conversion property. Under the irradiation of near-infrared (NIR) laser, the elevated temperatures of tumors co-cultured with MBCS triggered tumor apoptosis and ablation. As compared with the pure scaffold group, MBCS/NIR group possessed the excellent antitumor efficacy against osteosarcoma via the hyperthermia ablation. Therefore, the multifunctional MBCS with excellent bone regeneration and photothermal therapy functions has a great application for treating the tumor-related bone defects. PMID- 29339191 TI - Current status and perspectives of fungal entomopathogens used for microbial control of arthropod pests in Brazil. AB - Entomopathogenic fungi play a central role in Brazil's biopesticide market. Approximately 50% of registered microbial biopesticides comprise mycoinsecticides and/or mycoacaricides consisting of hypocrealean fungi, with most based on Metarhizium anisopliae sensu stricto (s. str.) and Beauveria bassiana s. str. These fungi are mainly used to control spittlebugs in sugarcane fields and whiteflies in row crops, respectively, with annual applications surpassing three million hectares. Research also emphasizes the potential of fungal entomopathogens to manage arthropod vectors of human diseases. Most registered fungal formulations comprise wettable powders or technical (non-formulated) products, with relatively few new developments in formulation technology. Despite the large area treated with mycoinsecticides (i.e., approx. 2 million ha of sugarcane treated with M. anisopliae and 1.5 million ha of soybean treated with B. bassiana), their market share remains small compared with the chemical insecticide market. Nevertheless, several major agricultural companies are investing in fungus-based products with the aim at achieving more sustainable IPM programs for major pests in both organic and conventional crops. Government and private research groups are pursuing innovative technologies for mass production, formulation, product stability and quality control, which will support cost effective commercial mycoinsecticides. Here, we summarize the status of mycoinsecticides currently available in Brazil and discuss future prospects. PMID- 29339192 TI - Tissue specific differences in mitochondrial DNA maintenance and expression. AB - The different cell types of multicellular organisms have specialized physiological requirements, affecting also their mitochondrial energy production and metabolism. The genome of mitochondria is essential for mitochondrial oxidative phosphorylation (OXHPOS) and thus plays a central role in many human mitochondrial pathologies. Disorders affecting mitochondrial DNA (mtDNA) maintenance are typically resulting in a tissue-specific pattern of mtDNA deletions and rearrangements. Despite this role in disease as well as a biomarker of mitochondrial biogenesis, the tissue-specific parameters of mitochondrial DNA maintenance have been virtually unexplored. In the presented study, we investigated mtDNA replication, topology, gene expression and damage in six different tissues of adult mice and sought to correlate these with the levels of known protein factors involved in mtDNA replication and transcription. Our results show that while liver and kidney cells replicate their mtDNA using the asynchronous mechanism known from cultured cells, tissues with high OXPHOS activity, such as heart, brain, skeletal muscle and brown fat, employ a strand coupled replication mode, combined with increased levels of recombination. The strand-coupled replication mode correlated also with mtDNA damage levels, indicating that the replication mechanism represents a tissue-specific strategy to deal with intrinsic oxidative stress. While the preferred replication mode did not correlate with mtDNA transcription or the levels of most known mtDNA maintenance proteins, mtSSB was most abundant in tissues using strand asynchronous mechanism. Although mitochondrial transcripts were most abundant in tissues with high metabolic rate, the mtDNA copy number per tissue mass was remarkably similar in all tissues. We propose that the tissue-specific features of mtDNA maintenance are primarily driven by the intrinsic reactive oxygen species exposure, mediated by DNA repair factors, whose identity remains to be elucidated. PMID- 29339193 TI - A pilot study on the biomechanical assessment of obstructive sleep apnea pre and post bariatric surgery. AB - Obesity is a major risk factor for obstructive sleep apnea patients. In obese patients the severity of this risk can be reduced by bariatric surgery. This pilot study investigates the perioperative effects of bariatric surgery on obstructive sleep apnea and on the physical and biomechanical characteristics of the upper airway. Polysomnography and computer tomography data for 10 morbid obese patients promoted for bariatric surgery were conducted before surgery and at 6 and 12 months postoperatively for assessment of the oropharyngeal anatomy, and subsequent three-dimensional modelling of the airway. Mean values for the apnea/hypopnea index and body mass index significantly reduced after surgery. To combine the effect of changes in the upper airway volume and body mass index, a new volume body mass index is introduced. This index increases with a successful bariatric surgery. Although bariatric surgery leads to an effective weight reduction for all age groups, for obstructive sleep apnea patients it may be effective for middle age, less effective for 50-60 years, and further less effective for patients over the age of 60 years. PMID- 29339190 TI - Systemic and local toxicity of metal debris released from hip prostheses: A review of experimental approaches. AB - Despite the technological improvements in orthopedic joint replacement implants, wear and corrosion products associated with the metal components of these implants may result in adverse local tissue and perhaps systemic reactions and toxicities. The current review encompasses a literature review of the local and systemic toxicity studies concerning the effect of CoCrMo wear debris released from wear and corrosion of orthopedic implants and prostheses. Release of metallic debris is mainly in the form of micro- and nano-particles, ions of different valences, and oxides composed of Co and Cr. Though these substances alter human biology, their direct effects of these substances on specific tissue types remain poorly understood. This may partially be the consequence of the multivariate research methodologies employed, leading to inconsistent reports. This review proposes the importance of developing new and more appropriate in vitro methodologies to study the cellular responses and toxicity mediated by joint replacement wear debris in-vivo. PMID- 29339195 TI - All about the caspase-dependent functions without cell death. PMID- 29339194 TI - Vaginal Construction and Treatment Providers' Experiences: A Qualitative Analysis. AB - STUDY OBJECTIVE: To investigate specialist clinicians' experiences of treating vaginal agenesis. DESIGN: Semi-structured interviews. SETTING: Twelve hospitals in Britain and Sweden. PARTICIPANTS: Thirty-two health professionals connected to multidisciplinary teams (MDTs) including medical specialists and psychologists. INTERVENTIONS AND MAIN OUTCOME MEASURES: Theoretical thematic analysis of recorded verbatim data. RESULTS: The gynecologist and psychologist interviewees share certain observations including the importance of psychological readiness for and appropriate timing of treatment. Three overlapping themes are identified in our theoretical analysis of the MDT clinicians' talk: (1) the stigma of vaginal agenesis and the pressure to be "normal" can lead patients to minimize the time, effort, physical discomfort, and emotional cost inherent in treatment. (2) Under pressure, treatment might be presented to patients with insufficient attention to the potential psychological effect of the language used. Furthermore, the opportunity to question what is "normal" in sex is generally not taken up. It can be challenging to help the women to transcend their medicalized experiences to come to experiencing their bodies as sexual and enjoyable. (3) The reality of treatment demands, which are not always adequately processed before treatment, can lead to discontinuation and even disengagement with services. CONCLUSION: The MDT clinicians in this study emphasized the importance of psychological input in vaginal construction. However, such input should proactively question social norms about how women's genitalia should appear and function. Furthermore, rather than steering patients (back) to treatment, the entire MDT could more explicitly question social norms and help the women to do the same. By shifting the definition of success from anatomy to personal agency, the clinical focus is transformed from treatment to women. PMID- 29339196 TI - Coronary Arteriovenous Fistula in Continuity With the Aortic Arch. AB - Coronary arteriovenous fistula in continuity with the aortic arch by abnormal vessels running along the surface of the pulmonary artery is rare. We describe 2 patients with this rare and unique arteriovenous network and discuss the issue of diagnosis and treatment with a review of the literature. PMID- 29339197 TI - Differential insulin and steroidogenic signaling in insulin resistant and non insulin resistant human luteinized granulosa cells-A study in PCOS patients. AB - Insulin resistance (IR) is one of the significant aberrations in polycystic ovarian syndrome (PCOS), however is only observed in 70%-80% of obese PCOS and 20%-25% of lean PCOS. Hyperinsulinemia accompanies PCOS-IR along with hyperandrogenemia against normal insulin and androgen levels in PCOS-non insulin resistance (NIR). This could possibly be due to defects in the downstream signaling pathways. The study thus aims to unravel insulin and steroidogenic signaling pathways in luteinized granulosa cells isolated from PCOS-IR and NIR vs matched controls. Luteinized granulosa cells from 30 controls and 39 PCOS were classified for IR based on a novel method of down regulation of protein expression of insulin receptor-beta (INSR- beta) as shown in our previous paper. We evaluated expression of molecules involved in insulin, steroidogenic signaling and lipid metabolism in luteinized granulosa cells followed by analysis of estradiol, progesterone and testosterone in follicular fluid. Protein expression of INSR- beta, pIRS (ser 307), PI(3)K, PKC-zeta, pAkt, ERK1/2, pP38MAPK and gene expression of IGF showed differential expression in the two groups. Increased protein expression of PPAR-gamma was accompanied by up regulation in SREBP1c, FAS, CPT-1 and ACC-1 genes in PCOS-IR group. Expression of StAR, CYP19A1, 17 beta HSD and 3 beta- HSD demonstrated significant decrease along with increase in CYP11A1, FSH-R and LH-R in both the groups. Follicular fluid testosterone increased and progesterone decreased in PCOS-IR group. This study shows how candidate molecules that were differentially expressed, aid in designing targeted therapy against the two phenotypes of PCOS. PMID- 29339198 TI - CD90+ cardiac fibroblasts reduce fibrosis of acute myocardial injury in rats. AB - OBJECTIVE: To explore the differentiation tendency of CD90+ cardiac fibroblast (CFs) into cardiomyogenic cells in vitro and repair functions in acute myocardial infarction rats. METHODS: CD90+ subpopulation was sorted from rat CFs by flow cytometry. 10 MUmoL/L of 5-Azacytosine (5-aza) was used to induce differentiation of CFs into cardiomyogenic cells. An acute myocardial infarction model was prepared by ligation of the rat left anterior descending coronary artery. After nuclei were labeled by DAPI, induced CD90+ CFs were injected into the infarction marginal zone. Before coronary ligation, 40 min after ligation, and at 7 and 14 days after cell transplantation, cardiac function changes were detected by ultrasound imaging system respectively. cTnT and endothelial cell marker VIII factor were detected by immunofluorescence staining. Infarct size was examined by TTC staining. Fibrosis was evaluated with masson's trichrome staining, vimentin, type I and type III collagen staining. RESULTS: CD90+ CFs sorted by flow cytometry was 34.9%. On day 28 after induction, the cTnT positive rate was 61.17 +/- 9.75%. Left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) at days 7 and 14 after transplantation were significantly increased compared with those before transplantation (P < 0.05). LVEF and LVFS at the 14th day after transplantation were also significantly increased compared with those at the 7th day (LVEF: 61.40 +/- 2.45% vs. 56.25 +/- 2.9%, LVFS: 33.21 +/- 0.68% vs. 30.26 +/- 2.06%, P < 0.01). Additionally, small numbers of CD90+ CFs differentiated into cardiomyocytes and became involved in neovascularization. CD90+ CFs and CFs reduced myocardial infarct size at days 14. It was significantly smaller in rats with CFs transplantation group than those in MI group(24.78 +/- 2.28% vs. 31.28 +/- 2.83%, P < 0.05), and it was also significantly smaller in rats with CD90+CFs transplantation group than those in CFs transplantation group (17.47 +/- 4.15% vs. 24.78 +/- 2.28%, P < 0.05). Meanwhile, The percentage of fibrotic area and vimentin, type I and type III collagen in the infarct border zone and infarct area were both significantly reduced in CD90 + CFs. CONCLUSION: CD90+ CFs is the preponderant subpopulation of cardiomyogenic differentiation, with potential use as seed cells in basic and clinical research of heart regeneration and repair. PMID- 29339199 TI - Neutralization of TNFR-1 and TNFR-2 modulates S. aureus induced septic arthritis by regulating the levels of pro inflammatory and anti inflammatory cytokines during the progression of the disease. AB - Staphylococcal septic arthritis remains a serious medical concern due to rapid and sustained production of inflammatory cytokines that leads to progressive and irreversible joint destruction with high mortality rate in patients despite adequate antibiotics treatment. TNF-alpha signalling via TNFR-1 contributes to arthritic destruction by aggravating inflammation. Impact of TNFR-2 signalling is not well established in this aspect. Hence the objective of our study was to evaluate the role of dual neutralization TNFR-1 and TNFR-2 in the pathogenesis of S. aureus infection induced septic arthritis. Mice were infected with live S. aureus (5 * 106 cells/ml) followed by administration of TNFR-1and TNFR-2 neutralizing antibody. To measure arthritis index and osteoclastogenesis, histology result in joint tissue and TRAP staining images of arthritis joints have been performed respectively. Maximum reduction in the joint and paw swelling was observed in infected mice treated with both TNFR-1 and TNFR-2 antibody. NF kappaB signalling was found to be mainly regulated by TNFR-1 whereas TNFR-2 significantly modulated JNK pathway. Lowest levels of inflammatory cytokines like TNF-alpha, IL-1beta, IL-6, and IFN-gamma were observed in both serum and synovial tissues signifying maximum protection in S. aureus arthritis during combination treatment. However IFN-gamma and IL-10 levels were significantly altered by TNFR 2 neutralization that indicates both pro and anti inflammatory role of TNFR-2 respectively. Highest decrement in ROS concentration, iNOS expression with least MPO and lysozyme activity was detected in case of combined neutralization. During the early phase of infection all the aforesaid inflammatory parameters remained elevated due to lack of IL-10 as a result of TNFR-2 neutralization as IL-10 negatively modulates pro inflammatory cytokines. Increase in inflammatory cytokines during early phase might also be responsible for decreased bacterial count in TNFR-2 neutralized groups. Thus it can be suggested that combined administration of TNFR-1 and TNFR-2 antibody has a beneficial effect against the severity of S. aureus induced arthritis. PMID- 29339200 TI - Preventing healthcare-associated Gram-negative bloodstream infections. PMID- 29339201 TI - Laminar airflow system use across the operating surface for airborne infection prevention in office-based surgical procedures. PMID- 29339202 TI - An in-situ pilot study to investigate the native clinical resistance of enamel to erosion. AB - OBJECTIVES: To investigate the differences in susceptibility of the surface of native and polished enamel to dietary erosion using an in-situ model. METHODS: Thirty healthy volunteers (n = 10 per group) wore mandibular appliances containing 2 native and 2 polished enamel samples for 30 min after which, the samples were exposed to either an ex-vivo or in-vivo immersion in orange juice for 5, 10 or 15 min and the cycle repeated twice with an hour's interval between them. Samples were scanned with a non-contacting laser profilometer and surface roughness was extracted from the data, together with step height and microhardness change on the polished enamel samples. RESULTS: All volunteers completed the study. For native enamel there were no statistical difference between baseline roughness values versus post erosion. Polished enamel significantly increased mean (SD) Sa roughness from baseline for each group resulting in roughness change of 0.04 (0.03), 0.06 (0.04), 0.04 (0.03), 0.06 (0.03), 0.08 (0.05) and 0.09 (0.05) MUm respectively. With statistical differences between roughness change 45 min in-vivo versus 45 min ex-vivo (p < 0.05). Microhardness significantly decreased for each polished group, with statistical differences in hardness change between 30 min in-vivo versus 30 min ex-vivo (p < 0.05), 45 min in-vivo versus 30 min ex-vivo (p < 0.01), 45 min in vivo versus 45 min ex-vivo (p < 0.01). CONCLUSIONS: The native resistance to erosion provided clinically is a combination of the ultrastructure of outer enamel, protection from the salivary pellicle and the overall effects of the oral environment. CLINICALTRIALS. GOV IDENTIFIER: NCT03178968. CLINICAL SIGNIFICANCE: This study demonstrates that outer enamel is innately more resistant to erosion which is clinically relevant as once there has been structural breakdown at this level the effects of erosive wear will be accelerated. PMID- 29339203 TI - Clinical performance of full rehabilitations with direct composite in severe tooth wear patients: 3.5 Years results. AB - OBJECTIVES: To evaluate the mid-term clinical performance of direct composite restorations placed in patients with pathological tooth wear needing full rehabilitation with an increase of vertical dimension of occlusion. METHODS: In a prospective trial 34 patients (34.0 +/- 8.4 years; 25 males, 9 females) were treated with a minimal invasive additive technique using composite restorations. The restorative treatment protocol was to provide all teeth with composite build up restorations in an increased vertical dimension of occlusion (VDO) using the DSO-technique. Recall appointments were planned after 1 month, 1 and 3 years after treatment. Restorations were scored for clinically acceptability (FDI criteria) and scores 4 and 5 were recorded as clinically unacceptable. Frequencies of failures and Kaplan Meier survival curves are presented and effect of relevant variables was calculated with a multifactorial Cox regression (p < 0.05). RESULTS: 1256 Restorations were placed, 687 anterior, 324 premolar, and 245 molar restorations. After a mean observation time of 39.7 months a total of 69 failures were observed, of which 61 restorations were repaired (score 4) and 8 were replaced (score 5). Most common reasons for failure were (chip) fractures (n = 43) and caries (n = 11). Placement of anterior restorations in two sessions led to significant 4.6 times more failures then placed in one session. CONCLUSIONS: In patients with severe tooth wear a full rehabilitation, in an increased vertical dimension of occlusion, direct composite resin restorations show a 94.8% success and 99.3% survival rate after a period of 3.5 years. PMID- 29339204 TI - WITHDRAWN: Serum uric acid and prevalence of age-related hearing loss in the Japanese population: Baseline data from the Aidai Cohort Study in Yawatahama. AB - This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at https://www.elsevier.com/about/our business/policies/article-withdrawal. PMID- 29339205 TI - Agreement of Musculoskeletal Ultrasound and Clinical Assessment of Shoulder Impairment in Manual Wheelchair Users With Various Duration of Spinal Cord Injury. AB - OBJECTIVES: To determine (1) agreement of musculoskeletal ultrasound (MSK-US) findings of shoulder pathology and related shoulder special test results in individuals with varied durations of manual wheelchair (MWC) use after spinal cord injury (SCI); and (2) whether shoulder musculoskeletal impairments, per MSK US and clinical examination, differed in individuals with SCI and varying durations of MWC use. DESIGN: Cross-sectional cohort study. SETTING: Laboratory setting. PARTICIPANTS: Adult volunteers (N=23) with SCI who used an MWC for community mobility. Individuals were stratified into 3 groups based on duration of MWC use: <5 years, 5 to 15 years, and >15 years. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Special tests for shoulder impingement and bicipital tendonitis were performed. Bilateral shoulder MSK-US was performed, with the Ultrasound Shoulder Pathology Rating Scale (USPRS) quantifying biceps tendon, supraspinatus tendon, and greater tuberosity cortical surface impairments. RESULTS: No agreement was found between MSK-US and related special tests. Special tests failed to identify impairment in 33.3% to 100% of those identified on MSK-US. The total USPRS score was highest in those with >15 years' MWC use. A higher proportion of dynamic impingement (supraspinatus and biceps) was found in those with >15 years' MWC use, with other MSK-US items having moderate effect sizes among duration-use groups. CONCLUSIONS: MSK-US identified shoulder impairments more frequently than commonly used special tests. A significant increase in the presence of MSK-US shoulder impairments was identified in the longest-duration group. This was not the case for special tests or pain. MSK-US is an easily administered, low-cost, noninvasive method for determining shoulder impairments and should be used in routine screening of individuals who use an MWC after SCI. PMID- 29339206 TI - Objective Sleep Measures in Inpatients With Subacute Stroke Associated With Levels and Improvements in Activities of Daily Living. AB - OBJECTIVE: To investigate whether objective polysomnographic measures of prevalent sleep problems such as sleep-disordered-breathing (SDB) and insomnia are associated with activities of daily living levels in inpatients at rehabilitation units. DESIGN: Retrospective and observational study. SETTING: Single rehabilitation center. PARTICIPANTS: Inpatients with subacute stroke (N=123) (61.6+/-13.1 years; 23.8+/-3.4 kg/m2; 33% women; 90.5+/-36.7 days post stroke) underwent a 1-night polysomnographic study and a 1-month inpatient rehabilitation program. MAIN OUTCOME MEASURES: Admission and discharge Barthel Index (BI) scores and its change scores. RESULTS: One hundred three (92%) patients had moderate-to-severe SDB (46.7+/-25.1 events/h in the apnea-hypopnea index), and 24 (19.5%) patients had acceptable continuous positive airway pressure adherence. Diverse values were found for total sleep time (259+/-71 min), sleep efficiency (69.5%+/-19.3%), sleep latency (24.3+/-30.9 min), and wakefulness after sleep onset (93.1+/-74.2 min). Admission BI scores and the BI change scores were 33.8+/-23.2 and 10.1+/-9.2, respectively. The National Institutes of Health Stroke Scale (NIHSS, 10.2+/-5.6), available in 57 (46%) patients, was negatively associated with admission levels and gains in BI change scores (P<.001, =0.002, respectively) in a univariate analysis. In regression models with backward selection, excluding NIHSS score, both age (P=.025) and wakefulness after sleep onset (P<.001) were negatively associated (adjusted R2=0.260) with admission BI scores. Comorbidity of hypertension; sleep latency percentage of stage 1, non-rapid eye movement sleep; and desaturation events >=4% (P<.001, 0.001, 0.021, and 0.043, respectively; adjusted R2=0.252) were negatively associated with BI score gains. CONCLUSIONS: Based on objective sleep measures, insomnia rather than SDB in inpatients with subacute stroke was associated negatively with admission levels of activity of daily living and its improvement after a 1-month rehabilitation course. PMID- 29339207 TI - Nicaraven reduces cancer metastasis to irradiated lungs by decreasing CCL8 and macrophage recruitment. AB - Radiotherapy for cancer patients damages normal tissues, thereby inducing an inflammatory response and promoting cancer metastasis. We investigated whether nicaraven, a compound with radioprotective and anti-inflammatory properties, could attenuate radiation-induced cancer metastasis to the lungs of mice. Nicaraven and amifostine, another commercial radioprotective agent, had limited effects on both the radiosensitivity of Lewis lung carcinoma cells in vitro and radiation-induced tumor growth inhibition in vivo. Using experimental and spontaneous metastasis models, we confirmed that thorax irradiation with 5 Gy X rays dramatically increased the number of tumors in the lungs. Interestingly, the number of tumors in the lungs was significantly reduced by administering nicaraven but not by administering amifostine daily after radiation exposure. Furthermore, nicaraven administration effectively inhibited CCL8 expression and macrophage recruitment in the lungs 1 day after thorax irradiation. Our data suggest that nicaraven attenuates radiation-induced lung metastasis, likely by regulating the inflammatory response after radiation exposure. PMID- 29339208 TI - Targeted shRNA-loaded liposome complex combined with focused ultrasound for blood brain barrier disruption and suppressing glioma growth. AB - Our previous studies have demonstrated that focused ultrasound (FUS) combined with DNA-loaded microbubbles (MBs) can induce noninvasive, reversible, local disruption of the blood brain barrier (BBB) and enable targeted exogenous gene transfer into the central nervous system. However, due to low gene loading or the absence of positive targeting, to date, there has been no therapeutic effect of MBs combined with FUS in tumor treatment. In the current study, we adopted a phospholipid complex that exhibited sufficient gene loading and peptide-mediated targeting to delay glioma growth. First, we bound MBs to shBirc5-lipo-NGR, which performed the dual function of tumor cell targeting and effective gene loading. Next, we demonstrated that FUS-aided MB-shBirc5-lipo-NGR exhibited a higher transfection efficiency compared with the control group. Finally, we evaluated the silencing effect of shBirc5 using an apoptosis assay, real time-polymerase chain reaction (PCR), western blotting (WB) in vitro and a volume measurement survival analysis in vivo. The experimental group exhibited a significant therapeutic effect, while the FUS-only, MB-shBirc5-lipo-NGR-only and FUS-aided MB shControl-lipo-NGR groups displayed no changes in tumor growth or survival time (P < .01). Consequently, our study indicated that MB-shBirc5-lipo-NGR combined with FUS is a promising new RNA interference technique for the treatment of glioma. PMID- 29339209 TI - Extratumoral PD-1 blockade does not perpetuate obesity-associated inflammation in esophageal adenocarcinoma. AB - Checkpoint inhibitors, such as anti-PD-1 (Programmed death-1), are transforming cancer treatment for inoperable or advanced disease. As the incidence of obesity associated malignancies, including esophageal adenocarcinoma (EAC) continues to increase and treatment with checkpoint inhibitors are being FDA approved for a broader range of cancers, it is important to assess how anti-PD-1 treatment might exacerbate pre-existing inflammatory processes at other sites. Outside the EAC tumor, the omentum and liver were found to be enriched with substantial populations of PD-1 expressing T cells. Treatment of omental and hepatic T cells with anti-PD-1 (clone EH12.2H7) did not enhance inflammatory cytokine expression or proliferation, but transiently increased CD107a expression by CD8+ T cells. Importantly, PD-1-expressing T cells are significantly lower in EAC tumor post neoadjuvant chemoradiotherapy, suggesting that combination with specific conventional treatments may severely impair the efficacy of anti-PD-1 immunotherapy. This study provides evidence that systemically administered anti PD-1 treatment is unlikely to exacerbate pre-existing T cell-mediated inflammation outside the tumor in obesity-associated cancers, such as EAC. Furthermore, our data suggests that studies are required to identify the negative impact of concomitant therapies on PD-1 expression in order to boost overall response rates. PMID- 29339210 TI - The NLRP3 inflammasome: Role in metabolic disorders and regulation by metabolic pathways. AB - Inflammasomes are large multimolecular complexes present in the cytosol of stimulated immune cells; they mediate the activation of caspase-1, leading to cellular pyroptosis. So far, a variety of studies on inflammasomes have emerged, and the best-studied is the NLRP3 inflammasome that is involved in many inflammatory responses. Furthermore, its relationship with metabolism is gaining increasing attention in this field. In this review, we discuss the importance of the NLRP3 inflammasome in metabolic disorders and its close association with metabolic pathways. PMID- 29339211 TI - Long non-coding RNA XIST promotes TGF-beta-induced epithelial-mesenchymal transition by regulating miR-367/141-ZEB2 axis in non-small-cell lung cancer. AB - Growing evidence shows that lncRNA XIST functions as an oncogene accelerating tumor progression. Transforming growth factor beta (TGF-beta)-induced epithelial mesenchymal transition (EMT) plays a key role in tumor metastasis. However, it is still unclear whether lncRNA XIST is implicated in TGF-beta-induced EMT and influences cell invasion and metastasis in non-small-cell lung cancer (NSCLC). Here, we observed increased expression of lncRNA XIST and ZEB2 mRNA in metastatic NSCLC tissues. Knockdown of lncRNA XIST inhibited ZEB2 expression, and repressed TGF-beta-induced EMT and NSCLC cell migration and invasion. Being in consistent with the in vitro findings, the in vivo experiment of metastasis showed that knockdown of lncRNA XIST inhibited pulmonary metastasis of NSCLC cells in mice. In addition, knockdown of ZEB2 expression can inhibit TGF-beta-induced EMT and NSCLC cell migration and invasion. Mechanistically, lncRNA XIST and ZEB2 were targets of miR-367 and miR-141. Furthermore, both miR-367 and miR-141 expression can be upregulated by knockdown of lncRNA XIST. Taken together, our study reveals that lncRNA XIST can promote TGF-beta-induced EMT and cell invasion and metastasis by regulating miR-367/miR-141-ZEB2 axis in NSCLC. PMID- 29339213 TI - NRP-2 in tumor lymphangiogenesis and lymphatic metastasis. AB - Neuropilin-2 (NRP-2) not only functions as a receptor for semaphorins, a family of neural axon guidance factors, but also interacts with VEGFs, a family of vascular endothelial growth factors. As an independent receptor or a co-receptor, NRP-2 binds to ligands VEGF-C/D, activates the VEGF-C/D-NRP-2 signaling axis, and further regulates lymphangiogenesis-associated factors in both lymphatic endothelial cells (LECs) and some tumor cells during tumor progression. Via VEGF C/D-NRP-2 axis, NRP-2 induces LEC proliferation, reconstruction and lymphangiogenesis and subsequently promotes tumor cell migration, invasion and lymphatic metastasis. There are similarities and differences among NRP-1, NRP-2 and VEGFR-3 in chemical structure, ligand specificity, chromosomal location, soluble protein forms, cellular functions and expression profiles. High expression of NRP-2 in LECs and tumor cells has been observed in different anatomic sites, histological patterns and progression stages of various tumors, especially during tumor lymphangiogenesis and lymphatic metastasis, and therefore the NRP-2 and VEGF-C/D-NRP-2 axis are closely related to tumor development, progression, invasion, and metastasis. In addition, it is important for prognosis of tumor. The studies on NRP-2 targeted therapy have recently achieved some successes, utilizing NRP-2 blocking antibodies, NRP-2 inhibitory peptides, soluble NRP-2 antagonists, small molecule inhibitors and various NRP-2 gene therapeutic strategies. PMID- 29339212 TI - Autophagy and T cell metabolism. AB - Autophagy, a highly conserved catabolic process that involves the degradation and recycling of intracellular components in the lysosome, has emerged as a key process in the maintenance of T cell homeostasis and the regulation of T cell differentiation and function. In this review, we provide an overview of the mechanisms that mediate the regulation of autophagy in T cells and discuss different cellular processes that are under the control of autophagy in CD4+ and CD8+ T cells. A special emphasis is placed on the role that autophagy plays in the modulation of T cell metabolism and the consequences of this regulation on functional states and programs of differentiation in specific T cell populations. PMID- 29339214 TI - Preparation and spectral properties of europium hydrogen squarate microcrystals. AB - A simple scheme for preparation of europium hydrogen squarate octahydrate microcrystals, Eu(HSq)3.8H2O is demonstrated. The microcrystalline powders obtained have a potential application as non-centrosymmetric and UV radiation - protective hybrid optical material. The site-symmetry of the Eu - ion is C2V or lower, obtained from diffuse reflectance spectra. The formation of europium hydrogen squarate is supported by IR - spectroscopy, UV-vis spectroscopy, chemical analysis and X-ray diffraction. A detailed analysis of the UV-vis and IR spectra of the micropowders prepared is presented. PMID- 29339215 TI - Registration in the international prospective register of systematic reviews (PROSPERO) of systematic review protocols was associated with increased review quality. AB - OBJECTIVES: A priori registration of systematic review protocols in international prospective register of systematic reviews (PROSPERO) can help reduce selective reporting of outcomes. The aim of this study was to assess the association between registration of orthodontic systematic reviews in PROSPERO and review quality with the Assessment of Multiple Systematic Reviews (AMSTAR) tool. STUDY DESIGN AND SETTING: Seven databases were searched for systematic reviews with/without meta-analysis in orthodontics published between 2012 and 2016. After duplicate study selection and data extraction, the quality of identified reviews was assessed in duplicate with the AMSTAR tool. Descriptive statistics of medians and interquartile ranges (IQRs) and chi-square/Fisher exact tests were calculated. Univariable/multivariable linear regression modeling was implemented to assess the effect of review registration on %AMSTAR score at alpha of 5%. RESULTS: A total of 182 orthodontic systematic reviews were identified, 37 (20.3%) of which were registered. Considerable differences were seen in AMSTAR between registered (median = 86.4%; IQR = 77.3-95.5%) and nonregistered reviews (median = 72.7%; IQR = 59.1-81.8%). After adjustment, registration in PROSPERO was associated with an average increase in %AMSTAR score of 6.6% (95% confidence interval = 1.0-12.3%). CONCLUSION: Although only a small percentage of orthodontic systematic reviews was registered a priori in PROSPERO, registered reviews were of higher quality than nonregistered reviews. PMID- 29339216 TI - In vivo biotinylated calpastatin improves the affinity purification of human m calpain. AB - Recently we established a novel affinity purification method for calpain by exploiting the specific and reversible binding properties of its intrinsically disordered protein inhibitor, calpastatin. The immobilization strategy relied on the strength and specificity of the biotin - streptavidin interaction. Here, we report an improved and optimized method that even enables the general applicability of in vivo biotinylated (intrinsically disordered) proteins in any affinity capture strategy. Since in vitro chemical biotinylation is only accomplished with reagents that lack exact site specificity, it can not only cause sample heterogeneity but it can also hamper the functionality of the biotinylated molecules. Therefore, we have developed a recombinant expression protocol to produce in vivo biotinylated human calpastatin domain 1 (hCSD1) in Escherichia coli. We have experimentally verified that the biotinylated polypeptide tag is compatible with the intrinsically disordered state of hCSD1 and that it does not influence the functional properties of this intrinsically disordered protein (IDP). The in vivo biotinylated hCSD1 was then used without the need of any prepurification step prior to the affinity capturing of its substrate, human m-calpain. This leads to a simplified purification strategy that allows capturing the calpain efficiently from a complex biological mixture with only a single chromatogaphic step and in a considerably reduced timeframe. Our approach is generally applicable through the in vivo biotinylation of any IDP of interest, and its practical implementation will showcase the power to exploit the properties of IDPs in affinity capture strategies. PMID- 29339217 TI - Effects of rutin on the physicochemical properties of skin fibroblasts membrane disruption following UV radiation. AB - Human skin provides the body's first line of defense against physical and environmental assaults. This study sought to determine how rutin affects the membrane electrical properties, sialic acid content, and lipid peroxidation levels of fibroblast membranes after disruption by ultraviolet (UV) radiation. Changes in cell function may affect the basal electrical surface properties of cell membranes, and changes can be detected by electrokinetic measurements. The charge density of the fibroblast membrane surface was measured as a function of pH. A four-component equilibrium model was used to describe the interaction between ions in solution and ions on the membrane surface. Agreement was found between experimental and theoretical charge variation curves of fibroblast cells between pH 2.5 and 8. Sialic acid content was determined by Svennerholm's resorcinol method, and lipid peroxidation was estimated by measuring the malondialdehyde level. Compared to untreated cells, ultraviolet A (UVA)- or ultraviolet B (UVB)-treated skin cell membranes exhibited higher concentrations of acidic functional groups and higher average association constants with hydroxyl ions, but lower average association constants with hydrogen ions. Moreover, our results showed that UVA and UVB radiation is associated with increased levels of sialic acid and lipid peroxidation products in fibroblasts. Rutin protected cells from some deleterious UV-associated membrane changes, including changes in electrical properties, oxidative state, and biological functions. PMID- 29339218 TI - Prophylactic efficacy of patchoulene epoxide against ethanol-induced gastric ulcer in rats: Influence on oxidative stress, inflammation and apoptosis. AB - Patchoulene epoxide (PAO), a tricyclic sesquiterpene isolated from the long stored patchouli oil, has been demonstrated the anti-inflammatory activity in vivo based on our previous study. However, the gastric protective effect of PAO still remains unknown. Therefore, in the present study, ethanol-induced gastric ulcer model was carried out to evaluate the anti-ulcerogenic activity of PAO and to elucidate the potential mechanisms that involves. According to our results, macroscopic examination revealed that PAO could significantly reduce ethanol induced gastric ulcer areas as compared with the vehicle group, which was also supported by the histological evaluation result. As for its potential mechanism, the anti-inflammatory activity of PAO contributed to gastric protection through reversing the imbalance between pro- and anti-inflammatory cytokines and modulating the expressions of NF-kappaB pathway-related proteins including p IkappaBalpha, IkappaBalpha, p-p65 and p65. Besides, PAO was able to enhance the expressions of antioxidant enzymes including glutathione (GSH), superoxide dismutase (SOD) and catalase (CAT), and down-regulate malonaldehyde (MDA), an indicator of lipid peroxidation. Furthermore, immunohistochemistry analysis exhibited potent anti-apoptosis effect of PAO, as evidence by down-regulating the protein expression of caspase-3, Fas and Fasl. Additionally, we also demonstrated that PAO could replenish PGE2 and NO mucosal defense. In conclusion, these findings suggested that PAO has gastric protective activity against ethanol and this might be related to its influence on inflammatory response, oxidative stress, apoptosis cascade and gastric mucosal defense. PMID- 29339219 TI - Caffeine-supplemented diet modulates oxidative stress markers and improves locomotor behavior in the lobster cockroach Nauphoeta cinerea. AB - The effects of caffeine supplementation is well documented in conventional animal models, however, in the lobster cockroaches Nauphoeta cinerea, they have not been reported. Thus, the aim of this study was to investigate the locomotor behavior and biochemical endpoints in the head of the nymphs of N. cinerea following 60 days exposure to food supplemented with 0, 0.5, 1.0, 2.5, 5.0 and 10.0 mg of caffeine/g of diet. The analysis of the locomotor behavior using the video tracking software, Any-maze, for 12 min revealed that caffeine supplementation caused significant behavioral improvement. There was increase in distance travelled, velocity, frequency of rotation and turn angle (stereotypical behavior such as circling movements), and this was supported by the representative track plots of the path travelled by cockroaches in the open-field arena. In addition, caffeine supplementation markedly increased total thiol and non-protein thiol glutathione (GSH) levels in the heads of cockroaches, and this was in parallel with significant reduction of lipid peroxidation and free Fe(II) content. Taking together, our results indicate that long-term caffeine supplementation may exert preventive effects against oxidative stress and support the use of N. cinerea as an efficient alternative model to assess the efficacy of food molecules. PMID- 29339220 TI - A new chimeric triple reporter fusion protein as a tool for in vitro and in vivo multimodal imaging to monitor the development of African trypanosomes and Leishmania parasites. AB - Trypanosomiases and leishmaniases, caused by a group of related protist parasites, are Neglected Tropical Diseases currently threatening >500 million people worldwide. Reporter proteins have revolutionised the research on infectious diseases and have opened up new advances in the understanding of trypanosomatid-borne diseases in terms of both biology, pathogenesis and drug development. Here, we describe the generation and some applications of a new chimeric triple reporter fusion protein combining the red-shifted firefly luciferase PpyREH9 and the tdTomato red fluorescent protein, fused by the TY1 tag. Expressed in both Trypanosoma brucei brucei and Leishmania major transgenic parasites, this construct was successfully assessed on different state-of-the-art imaging technologies, at different scales ranging from whole organism to cellular level, both in vitro and in vivo in murine models. For T. b. brucei, the usefulness of this triple marker to monitor the entire parasite cycle in both tsetse flies and mice was further demonstrated. This stable reporter allows to qualitatively and quantitatively scrutinize in real-time several crucial aspects of the parasite's development, including the development of African trypanosomes in the dermis of the mammalian host. We briefly discuss developments in bio imaging technologies and highlight how we could improve our understanding of parasitism by combining the genetic engineering of parasites to the one of the hosting organisms in which they complete their developmental program. PMID- 29339221 TI - The Founding Fathers vs Jerome Cochran: Organization and Development of the Southern Surgical and Gynecological Association in Birmingham. PMID- 29339222 TI - Measurement variability of liver metastases from neuroendocrine tumors on different magnetic resonance imaging sequences. AB - PURPOSE: To assess dimension measurement variability of liver metastases from neuroendocrine tumors (LMNET) on different magnetic resonance imaging (MRI) sequences. MATERIAL AND METHODS: In this institutional review board-approved retrospective study from January 2011 to December 2012, all liver MRI examinations performed at our department in patients with at least one measurable LMNET according to response evaluation criteria in solid tumors (RECIST1.1) were included. Up to two lesions were selected on T2-weighted MR images. Three reviewers independently measured long axes of 135 hepatic metastases in 30 patients (16 men, 14 women, mean age 61+/-11.4 (SD) years; range 28-78 years), during two separate reading sessions, on T2-weighted, diffusion-weighted MRI (DWI) (b; 50, 400, 800 s/mm2) and arterial, portal and late phases after intravenous administration of a gadolinium chelate. Intraclass-correlation coefficients and Bland-Altman plots were used to assess intra-and interobserver variability. RESULTS: Intra- and interobserver agreements ranged between 0.87 0.98, and 0.88-0.97, respectively. Intersequence agreements ranged between 0.92 [95%CI: 0.82-0.98] and 0.98 [95%CI: 0.93-0.99]. 95% limits of agreement for measurements were -10.2%,+8.9% for DWI (b=50s/mm2) versus -21.9%,+24.2% and 15.8,+17.2% for arterial and portal phases, respectively. CONCLUSION: An increase<9% in measurement and a decrease of -10% on DWI should not be considered as true changes, with 95% confidence, versus 24% and -22% on arterial and 17%, 16% on portal phases, respectively. DWI might thus be the most reliable MR sequence for monitoring size variations of LMNETs. PMID- 29339223 TI - Leishmania infections in Austrian soldiers returning from military missions abroad: a cross-sectional study. AB - OBJECTIVES: The incidence of leishmaniasis is known to increase in conflict areas. The aims of this study were to determine the exposure to Leishmania species in Austrian soldiers returning from missions abroad and to assess possible risk factors. METHODS: A retrospective explorative cross-sectional serologic study was conducted in 225 healthy Austrian soldiers returning from UN or EU peacekeeping missions in Syria, Lebanon and Bosnia and Herzegovina (BIH). Sera were tested for anti-Leishmania antibodies using a commercial enzyme-linked immunosorbent assay. All positive individuals were screened for Leishmania DNA by PCR targeting the ITS1 region using EDTA blood samples. RESULTS: In total, 13.3% (30/225) of the individuals tested were either positive (8%, 18/225) or borderline (5.3%, 12/225) in the enzyme-linked immunosorbent assay, with the highest seroprevalence in soldiers returning from Syria (17.8%, 18/101; 12 positive, six borderline), second from Lebanon (11.1%, 7/63; four positive, three borderline) and lowest from BIH (8.2%, 5/61; two positive, three borderline). Ten soldiers returning from Syria and one from BIH were also positive for Leishmania DNA. Six of these were identified as Leishmania donovani/infantum complex, two as L. tropica and another three as mixed infections by DNA sequencing. Epidemiologic data were collected via a questionnaire, and seropositivity was correlated with a history of insect bites that took a long time to heal (odds ratio, 5.33; 95% confidence interval, 1.23-23.04; p 0.025). CONCLUSIONS: Although pretravel serologic data were not available in this study, the exposure of soldiers to Leishmania spp. during their missions can be assumed to be considerable. Because even asymptomatic infections may resurge in case of emerging immunodeficiencies, adequate prevention measures seem important. PMID- 29339224 TI - Emerging souvenirs-clinical presentation of the returning traveller with imported arbovirus infections in Europe. AB - BACKGROUND: Arboviruses are an emerging group of viruses that are causing increasing health concerns globally, including in Europe. Clinical presentation usually consists of a nonspecific febrile illness that may be accompanied by rash, arthralgia and arthritis, with or without neurological or haemorrhagic syndromes. The range of differential diagnoses of other infectious and noninfectious aetiologies is broad, presenting a challenge for physicians. While knowledge of the geographical distribution of pathogens and the current epidemiological situation, incubation periods, exposure risk factors and vaccination history can help guide the diagnostic approach, the nonspecific and variable clinical presentation can delay final diagnosis. AIMS AND SOURCES: This narrative review aims to summarize the main clinical and laboratory-based findings of the three most common imported arboviruses in Europe. Evidence is extracted from published literature and clinical expertise of European arbovirus experts. CONTENT: We present three cases that highlight similarities and differences between some of the most common travel-related arboviruses imported to Europe. These include a patient with chikungunya virus infection presenting in Greece, a case of dengue fever in Turkey and a travel-related case of Zika virus infection in Romania. IMPLICATIONS: Early diagnosis of travel-imported cases is important to reduce the risk of localized outbreaks of tropical arboviruses such as dengue and chikungunya and the risk of local transmission from body fluids or vertical transmission. Given the global relevance of arboviruses and the continuous risk of (re)emerging arbovirus events, clinicians should be aware of the clinical syndromes of arbovirus fevers and the potential pitfalls in diagnosis. PMID- 29339225 TI - Metabolism and pharmacokinetics of a potent N-acylindole antagonist of the OXE receptor for the eosinophil chemoattractant 5-oxo-6,8,11,14-eicosatetraenoic acid (5-oxo-ETE) in rats and monkeys. AB - We previously identified the indole 264 as a potent in vitro antagonist of the human OXE receptor that mediates the actions of the powerful eosinophil chemoattractant 5-oxo-ETE. No antagonists of this receptor are currently commercially available or are being tested in clinical studies. The lack of a rodent ortholog of the OXE receptor has hampered progress in this area because of the unavailability of commonly used mouse or rat animal models. In the present study, we examined the feasibility of using the cynomolgus monkey as an animal model to investigate the efficacy of orally administered 264 in future in vivo studies. We first confirmed that 264 is active in monkeys by showing that it is a potent inhibitor of 5-oxo-ETE-induced actin polymerization and chemotaxis in granulocytes. The major microsomal metabolites of 264 were identified by cochromatography with authentic chemically synthesized standards and LC-MS/MS as its omega2-hydroxy and omega2-oxo derivatives, formed by omega2-oxidation of its hexyl side chain. Small amounts of omega1-oxidation products were also identified. None of these metabolites have substantial antagonist potency. High levels of 264 appeared rapidly in the blood following oral administration to both rats and monkeys, and declined to low levels by 24 h. As with microsomes, its major plasma metabolites in monkeys were omega2-oxidation products. We conclude that the monkey is a suitable animal model to investigate potential therapeutic effects of 264. This, or a related compound with diminished susceptibility to omega2-oxidation, could be a useful therapeutic agent in eosinophilic disorders such as asthma. PMID- 29339226 TI - Model and methods to assess hepatic function from indocyanine green fluorescence dynamical measurements of liver tissue. AB - The indocyanine green (ICG) clearance, presented as plasma disappearance rate is, presently, a reliable method to estimate the hepatic "function". However, this technique is not instantaneously available and thus cannot been used intra operatively (during liver surgery). Near-infrared spectroscopy enables to assess hepatic ICG concentration over time in the liver tissue. This article proposes to extract more information from the liver intensity dynamics by interpreting it through a dedicated pharmacokinetics model. In order to account for the different exchanges between the liver tissues, the proposed model includes three compartments for the liver model (sinusoids, hepatocytes and bile canaliculi). The model output dependency to parameters is studied with sensitivity analysis and solving an inverse problem on synthetic data. The estimation of model parameters is then performed with in-vivo measurements in rabbits (El-Desoky et al. 1999). Parameters for different liver states are estimated, and their link with liver function is investigated. A non-linear (Michaelis-Menten type) excretion rate from the hepatocytes to the bile canaliculi was necessary to reproduce the measurements for different liver conditions. In case of bile duct ligation, the model suggests that this rate is reduced, and that the ICG is stored in the hepatocytes. Moreover, the level of ICG remains high in the blood following the ligation of the bile duct. The percentage of retention of indocyanine green in blood, which is a common test for hepatic function estimation, is also investigated with the model. The impact of bile duct ligation and reduced liver inflow on the percentage of ICG retention in blood is studied. The estimation of the pharmacokinetics model parameters may lead to an evaluation of different liver functions. PMID- 29339227 TI - A novel biphenolic ligand for selective Mg2+ and Zn2+ ions sensing followed by colorimetric, spectroscopic and cell imaging methods. AB - The (E)-2-((2-hydrohy-5-methylphenylimino) methyl) phenol ligand was synthesized. The receptor was characterized by IR, 1H and 13C NMR and CHN analysis. The ligand exhibits colorimetric and fluorometric sensing of Zn2+ and Mg2+ ions in semi aqueous medium (DMSO-H2O). The receptor was tested with series of transition metal ions (Cr2+, Fe2+, Ni2+, Co2+, Cu2+, Zn2+) and heavy metal ions (Sn2+, Pd2+, Ce2+, Hg2+, Cd2+) and the essential human body elements like Ca2+, Mg2+, Na+ and K+ ions. The naked eye colorimetric sensing was absorbed only for Zn2+ and Mg2+. Both ions (ZnCl2 and MgCl2 in H2O), when added to the colorless solutions of the receptor of about 1 equivalence in incremental additions turn the solution into bright turmeric yellow. All other ions remain inactive, in colorimetric sensing. Further the Zn2+ and Mg2+ ions were probed by absorption and emission spectroscopy through incremental addition of respective metal ions. The in-situ deprotonation of the ligand on both Mg2+ and Zn2+ ions binding was confirmed by 1H NMR titration studies. The imino nitrogen of the receptor is not coordinated to the metal ions. The Job's plot studies reveal the 1:2 binding ratio of metal ions to the receptor. The high fold fluorescence output on metal ions binding was positively used to sense the Zn2+ and Mg2+ ions, separately and together in HeLa cancer cells through cell imaging. PMID- 29339228 TI - Stability and plasmatic protein binding of novel zidovudine prodrugs: Targeting site ii of human serum albumin. AB - Despite its vastly demonstrated clinical efficacy, zidovudine (AZT) exhibits several suboptimal pharmacokinetic properties. In particular, its short plasmatic half-life (t1/2 ~ 1 h) is related to its low bound fraction to whole plasmatic proteins and in particular to human serum albumin (HSA). The design of prodrugs constitutes a promising strategy to enhance AZT pharmacokinetic properties, including its affinity for HSA. Recently, we reported the synthesis and chemical stability evaluation of three novel prodrugs of AZT obtained by derivatization with dicarboxylic acids (1-3). In this work, we present the design, synthesis and evaluation of chemical and enzymatic stabilities of a novel series of double prodrugs of AZT obtained by derivatization of 1-3 with a methylated l phenylalanine moiety (4-6). In addition, the plasmatic protein binding properties were studied both by experimental and theoretical techniques. Prodrugs 4-6 were found to be relatively stable at pH 7.4 (t1/2 between 4.1 and 57.8 h), while also demonstrated adequate stabilities in human plasma at 37 degrees C (t1/2 between 1.0 and 2.1 h). Also, prodrugs 4-6 were able to regenerate AZT at a rate that depended on the length of the alkyl chain in 1-3. Additionally, 4-6 exhibited a significantly increased binding to plasmatic proteins (between 52.1 and 72.5%) with respect to AZT (12%) and 1-3 (between 26 and 34%). It is noteworthy that the displacement experiments with HSA site I and II markers, demonstrated that 4-6 bound to a different site than that of AZT and 1-3. Molecular modeling studies (i.e. molecular docking and free energy of binding analysis) were applied to shed light at an atomistic level on the pharmacodynamic properties driving the interaction of 4-6 with HSA. Overall, the present work provides a state of the art contribution to the design and development of novel prodrugs of AZT with optimized pharmacokinetic properties. PMID- 29339229 TI - A rare case of Candida glabrata spondylodiscitis: case report and literature review. AB - BACKGROUND: Spondylodiscitis is an infection of the vertebral column, the incidence of which is increasing due to an increase in the susceptible population and improved ascertainment. This disease has been associated with a wide range of microorganisms. Fungal spondylodiscitis is uncommon (0.5-1.6%) and strongly associated with immunosuppression and diabetes (Gouliouris et al., 2010). A rare case of Candida glabrata spondylodiscitis in a non-neutropenic diabetic patient is reported herein, along with a review of the literature. CASE REPORT: A case of C. glabrata spondylodiscitis of L3-L4 metameres was diagnosed. The diagnosis was obtained through open biopsy of an abscess and culture examination. The patient was treated with anidulafungin and surgical debridement of the lesion. CONCLUSIONS: The diagnosis of spondylodiscitis is often delayed or missed. Physicians should consider this entity in the differential diagnosis of lumbar pain in order to initiate an appropriate therapy to prevent spinal cord lesions and disability. This is particularly relevant in the case of a fungal aetiology, as there is a recognized global shift towards invasive candidiasis due to non albicans Candida species, in particular C. glabrata, which has variable susceptibility to antifungal drugs. PMID- 29339230 TI - Balanced crystalloids vs 0.9% saline for adult patients undergoing non-renal surgery: A meta-analysis. AB - BACKGROUND: Fluid maintenance and resuscitation is an important strategy during major surgeries. There has been a debate on the choice of crystalloids over the past decades. 0.9% saline (normal saline) is more likely to cause hyperchloremic acidosis when compared to balanced crystalloids with low chloride content. Meta analyses comparing these two kinds of crystalloids have been performed in renal transplantations. We aim to compare the safety of balanced crystalloids to normal saline among adult patients undergoing non-renal surgery. METHODS: Relevant articles were searched through PubMed, Embase and the Cochrane Library. Nine randomized controlled trials (including 871 participants) comparing balanced crystalloids to normal saline on adult patients undergoing non-renal surgery were finally included. Possible effects were calculated using meta-analysis. RESULTS: Patients in the normal saline group had significantly lower postoperative pH (MD: 0.05; 95% CI: 0.04-0.06; p < .001; I2 = 82%) and base excess (MD: 2.04; 95% CI: 1.44-2.65; p < .001; I2 = 87%). The postoperative serum chloride level was significantly higher in the normal saline group (MD: -4.79; 95% CI: -8.13~-1.45; p = .005; I2 = 95%). CONCLUSION: Comparing to normal saline, balanced crystalloids are more beneficial in keeping postoperative electrolytes and acid base balance among adult patients undergoing non-renal surgery. Future researches should pay more attention to meaningful clinical outcomes concerning the safety of balanced crystalloids and normal saline. PMID- 29339231 TI - Respiratory patterns in field collected brown locust, Locustana pardalina, in the gregarious phase. AB - In this paper we report on the metabolic rates and respiratory patterns measured from gregarious brown locusts, Locustana pardalina, collected from the Nama Karoo region in South Africa. All five instar hopper stages and adults were collected over a three year period when significant numbers of locust swarms were seen. Flow-through respirometry was used to measure the CO2 emission from individual locusts from all the developmental stages and adults within a week of collection. Carbon dioxide emission scaled hypometrically with mass, 0.863 +/- 0.026. Except in the 1st and 5th instar stage there was no difference in the mass specific rate of CO2 emission (VCO2). These had significantly higher metabolic rates compared to the other stages which reflects their biology, with the 1st instar undergoing rapid growth and the 5th instar also undergoing rapid growth and development in preparation for becoming an adult. The 1st instars used a form of continuous gas exchange while all the other stages showed discontinuous gas exchange cycles. A clear burst phase and interburst periods could be seen. The 2nd and 3rd instars use mainly diffusion to expel CO2 and so exhibited an open form of the burst phase. There was an increase in CO2 volleys seen in the burst phase from the 4th instar stage onwards thus indicating an increased use of convection. There was no change in the duration or frequency of the discontinuous gas exchange cycles through the locust development or with body mass. PMID- 29339232 TI - Diapause in Drosophila melanogaster - Photoperiodicity, cold tolerance and metabolites. AB - Unlike many insects where photoperiod per se induces diapause, reproductive arrest in Drosophila melanogaster adult females is observed at colder temperatures and can be enhanced by shorter photoperiods. Traditional experimental protocols raise flies at 25 degrees C from the larval stage and then the adults are placed at 12 degrees C for between 12 and 28 days. After 12 days diapause levels are usually higher than at 28 days, suggesting that the flies are in a cold induced quiescence, rather than a true diapause. By raising flies at more realistic lower temperatures, we observe quite dramatic and counter intuitive effects on diapause, whose levels nevertheless correlate with various indices of cryoprotectant metabolites as well as resistance to chill shock. We also observe that photoperiodic effects are minimised when very small temperature oscillations associated with the light-dark incubator cycles are neutralised. Our results suggest that the reported photoperiodic component of fly diapause, at least in these strains, is mostly due to thermoperiodic rather than photoperiodic stimuli. In addition, the metabolite and chill shock analyses reveal that even by 12 days, flies are entering a state that is resistant to environmental stresses. PMID- 29339233 TI - FTIR as an easy and fast analytical approach to follow up microbial growth during fungal pretreatment of poplar wood with Phanerochaete chrysosporium. AB - Since the determination of the fermentation kinetics is one of the main challenges in solid state fermentation, the quantitative measurement of biomass growth during microbial pretreatment by FTIR spectroscopy in Attenuated Total Reflectance mode was evaluated. Peaks at wave numbers of 1651 cm-1 and 1593 cm-1 showed to be affected during pretreatment of poplar wood particles by Phanerochaete chrysosporium MUCL 19343. Samples with different microbial biomass fractions were obtained from two different experiments, i.e., shake flask and fixed-bed reactor experiments. The glucosamine concentration was compared to the normalized absorbance ratio of the 1651 cm-1 to 1593 cm-1 peak, measured by FTIR ATR, and resulted in a linear relationship. The application of a normalized absorbance ratio in function of time provided a graph that was similar to the microbial growth curve. Application of FTIR in ATR mode to follow-up kinetics during solid state fermentation seems to be a fast and easy alternative to laborious measurement techniques, such as glucosamine determination. PMID- 29339234 TI - Stoichiometric variation and loading capacity of a high-loading anammox attached film expanded bed (AAEEB) reactor. AB - The nitrogen loading rate (NLR) of an anammox attached film expanded bed (AAFEB) reactor was increased from 5.0 to 60.0 gN/L/d. During the stable operational period, the TN removal efficiency maintained at 87.3 +/- 2.5%, and a maximum nitrogen removal rate (NRR) of 44.9 +/- 0.3 gN/L/d was achieved. Overload resulted in the sharp deterioration of reactor performance, the ratio of (Food/Microorganism)/SAA should be maintained at lower than 66 +/- 7% to ensure the stable operation of the AAFEB reactor. New stoichiometric equations for the anammox process under the low NLR condition (5.0 gN/L/d) and the high NLR condition (50.0 gN/L/d) were proposed. The quantitative SAA-cytochrome heme C relationship was established for the first time that providing a simple way for monitoring the reactor performance. Substrate tolerance ability was significantly increased that proving the stability of the AAFEB reactor was continuously enhanced during the stable operational periods. PMID- 29339235 TI - A highly efficient two-stage cultivation strategy for lutein production using heterotrophic culture of Chlorella sorokiniana MB-1-M12. AB - A heterotrophic mutant of Chlorella sorokiniana MB-1-M12 was evaluated for its ability to produce lutein using organic carbon and nitrogen sources and without light irradiation. In batch fermentation, the maximal lutein content (3.67 mg lutein/g biomass) and productivity (2.84 mg/L/d) could be obtained when cultivated in BG-11 medium with 7.5 g/L glucose, 0.75 g/L urea, pH 7.5 and a C/N ratio of 10. A novel two-stage cultivation strategy that integrates fed-batch and semi-batch operations was applied to enhance the lutein production performance. When growing MB-1-M12 strain in a 5L fermenter using the optimal operation strategies, the maximum biomass concentration, biomass productivity, lutein content and lutein productivity could reach 25 g/L, 4.88 mg/L/d, 5.88 mg/g and 16.2 mg/L/d, respectively. This high lutein productivity could significantly reduce the cultivation time and the associated costs, indicating the potential of using MB-1-M12 strain for heterotrophic lutein production in commercial scale. PMID- 29339236 TI - In-depth study of rice husk torrefaction: Characterization of solid, liquid and gaseous products, oxygen migration and energy yield. AB - Torrefaction is a promising method for biomass upgrading, and analysis of all products is the essential way to reveal torrefaction mechanism. In this study, torrefaction of rice husk was performed at 210-300 degrees C. Results showed that the fuel properties of solid products were greatly enhanced upon removal of oxygen. The gaseous products were mainly CO2 (52.9-73.8 vol%), followed by CO (26.3-39.2 vol%). The liquid product was mainly water and some tar, and the latter contained acids, furans, ketones, aldehydes, and phenols, among which the relative content of acids was the highest. Torrefaction temperature has obvious effects on the oxygen migration. Within the temperature range of 210-300 degrees C, 9.5-63.2% of oxygen in rice husk was migrated to the gaseous and liquid products. The H2O was the major contributor to deoxygenation, followed by CO2 and CO. Thus, formation of H2O, CO2, and CO during torrefaction is important as it achieves the purpose of intense deoxygenation. PMID- 29339238 TI - Topical betaxolol for treating relapsing paronychia with pyogenic granuloma-like lesions induced by epidermal growth factor receptor inhibitors. PMID- 29339237 TI - Assessing the outcomes, risks, and costs of local versus general anesthesia: A review with implications for cutaneous surgery. AB - BACKGROUND: There is a paucity of data providing direct comparison of outcomes, complications, and costs between general and local anesthesia in cutaneous surgery. OBJECTIVE: Analyze the literature from dermatologic and other specialties to compare outcomes, risks, and costs of general and local anesthesia. METHODS: A retrospective analysis of case comparison studies from other specialties comparing outcomes, risks, and/or costs in local versus general anesthesia was performed. A review of the literature from dermatology and other specialties was included. RESULTS: A total of 51 studies were selected; 41 of them directly examined outcomes in procedures performed under local and general anesthesia, and none found a significant difference in outcomes. A total of 41 studies measured adverse effects. Of these, 15 studies (36.6%) report significantly better outcomes between the 2 techniques. Only 2 studies (4.9%) report significantly improved outcomes with use of general anesthesia; 15 of 36 studies (41.7%) report fewer adverse events in local anesthesia. Of the 13 studies that examined costs, all (100%) found significantly decreased costs with use of local anesthesia. LIMITATIONS: These data cannot be seamlessly applied to all cases of cutaneous surgery. CONCLUSION: Local anesthesia techniques provide outcomes equal to or better than general anesthesia and with significantly lower costs. PMID- 29339239 TI - Multiple melanonychia striata as a sign of connective tissue disorders. PMID- 29339240 TI - Prevalence of type 2 diabetes mellitus among patients with hidradenitis suppurativa in the United States. AB - BACKGROUND: Few studies have evaluated the relationship between hidradenitis suppurativa (HS) and type 2 diabetes mellitus (T2DM), and the existing data show conflicting results. OBJECTIVE: To determine the prevalence of T2DM among patients with HS and identify at-risk demographic subgroups. METHODS: Cross sectional analysis identifying T2DM among patients with and without HS from a demographically heterogeneous population-based sample of more than 50 million patients in the United States. RESULTS: The overall prevalence of T2DM among patients with HS was 24.8% (10,705 of 43,105) compared with 15.6% (1,993,320 of 12,527,570) among patients without HS. The prevalence was highest among patients with HS who were male (3045 of 10,785 [28.2%]), older (1945 of 3950 [49.2%]), nonwhite (4665 of 17,495 [26.7%]), obese (9065 of 30,855 [29.4%]), tobacco smokers (6880 of 25,005 [27.5%]), hypertensive (8595 of 19,610 [43.8%]), and hyperlipidemic (7965 of 17,190 [46.3%]). In univariable and multivariable analyses, patients with HS had 1.75 (95% confidence interval [CI], 1.71-1.79) and 1.58 (95% CI, 1.54-1.62) times the odds, respectively, of having T2DM. HS was associated with T2DM across all demographic subgroups. The association was stronger for younger patients (an OR of 1.67 and 95% CI of 1.60-1.72 for ages 18 44 years vs an OR of 1.50 and 95% CI of 1.41-1.61 for ages >=65 years). LIMITATIONS: We lacked information on HS disease severity. CONCLUSION: Patients with HS with risk factors, signs, or symptoms of T2DM should be screened. PMID- 29339241 TI - Role of graft-versus-host disease in the development of secondary skin cancers in hematopoietic stem cell transplant recipients: A meta-analysis. PMID- 29339242 TI - Combined acitretin and Candida antigen versus either agent alone in the treatment of recalcitrant warts. PMID- 29339243 TI - Black dots in palmoplantar warts-challenging a concept: A histopathologic study. PMID- 29339244 TI - Epigenetics of breast cancer: Biology and clinical implication in the era of precision medicine. AB - In the last years, mortality from breast cancer has declined in western countries as a consequence of a more widespread screening resulting in earlier detection, as well as an improved molecular classification and advances in adjuvant treatment. Nevertheless, approximately one third of breast cancer patients will develop distant metastases and eventually die for the disease. There is now a compelling body of evidence suggesting that epigenetic modifications comprising DNA methylation and chromatin remodeling play a pivotal role since the early stages of breast cancerogenesis. In addition, recently, increasing emphasis is being placed on the property of ncRNAs to finely control gene expression at multiple levels by interacting with a wide array of molecules such that they might be designated as epigenetic modifiers. In this review, we summarize the current knowledge about the involvement of epigenetic modifications in breast cancer, and provide an overview of the significant association of epigenetic traits with the breast cancer clinicopathological features, emphasizing the potentiality of epigenetic marks to become biomarkers in the context of precision medicine. PMID- 29339245 TI - Systematic review and evaluation of aspartame carcinogenicity bioassays using quality criteria. AB - The current review assessed cancer studies of aspartame based on a quality appraisal using the Klimisch grading system. Nine studies having complete histopathology were included: three 2-year studies by Searle; three transgenic mice studies by the NTP; three lifetime studies by the Ramazzini Institute. A tenth study limited to brain tumors was not rated. None were determined as Klimisch Code 1 (reliable without restrictions). The Searle studies predated GLP standards but their methodology was comparable; transgenic mouse models are not validated, but are accepted as supporting data. These studies were rated Klimisch Code 2 (reliable with restrictions). The Ramazzini Institute used a lifetime model of their own design that has been questioned due to high rates of spontaneous tumors, issues with tumor type diagnosis and concerns about the impact of chronic infections. As many of these problems could be attributed to using animals that died or were terminated near end of life, along with the other problems noted, these studies were rated Klimisch Code 3 (not reliable). As the Klimisch Code 2 studies demonstrated a lack of carcinogenic potential, and as aspartame is hydrolyzed to common components and lacks genotoxic activity, a conclusion that aspartame is not carcinogenic is supported. PMID- 29339246 TI - Absence of toxicity in Swiss mice following treatment with 7-acetoxy-4-aryl-3,4 dihydrocoumarin: Acute and repeated-dose toxicity study. AB - Neoflavonoids, which are classified as 4-arylcoumarin (neoflavone), 3,4-dihydro-4 arylcoumarin and neoflavene, have been the subject of a number of studies with respect to their therapeutic potential and, despite promising in vitro, ex vivo and in vivo pharmacological activities, there is a lack of studies demonstrating their toxicological properties. Therefore, this study aims to evaluate the acute (14 days) and repeated-dose (28 days) toxicity of synthetic neoflavonoid 7 acetoxy-4-aryl-3,4-dihydrocoumarin in Swiss mice through parameters related to changes in body weight, food and water intake, hematological and biochemical parameters. Toxicity studies using acute doses (300 and 2000 mg/kg) and repeated doses (250, 500 and 1000 mg/kg) orally were carried out as per Organization for Economic Co-operation and Development (OECD) guidelines 423 and 407, respectively. Based on the results of this study, treatment with 7-acetoxy-4-aryl 3,4-dihydrocoumarin was found to not cause clinical adverse symptoms and mortality in any animal used in the acute and repeated-dose toxicity study. In addition, no significant changes were observed in body weight and internal organs, food and water intake, hematological and biochemical parameters, compared to control group. Therefore, these results provide an initial understanding regarding the toxicity profile of 7-acetoxy-4-aryl-3,4-dihydrocoumarin, which can be considered a neoflavonoid with toxicity seen at doses higher than 2000 mg/kg in Swiss mice. PMID- 29339247 TI - Self-emulsifying peptide drug delivery systems: How to make them highly mucus permeating. AB - AIM: It was the aim of this study to evaluate the mucus permeating properties of self-emulsifying drug delivery systems (SEDDS) exhibiting different size and zeta potential. METHODS: Various SEDDS were prepared and characterized regarding droplet size, zeta potential and stability. Desmopressin was incorporated as model peptide drug and log P (SEDDS/water) was determined. Thereafter, mucus permeation studies with freshly isolated porcine mucus via Transwell method were performed. Moreover, the impact of water movement on mucus permeation of SEDDS was investigated. Different types of nanocarriers including nanoparticles and liposomes served as references. RESULTS: SEDDS exhibited an initial droplet size of 25.0 +/- 2.2, 49.5 +/- 4.6, 123.5 +/- 12.1, 226.2 +/- 93.4 and 502.9 +/- 93.7 nm and a zeta potential of +24.4 +/- 4.6, +10.6 +/- 2.0, 0.2 +/- 3.8, -8.2 +/- 3.4 and -35.1 +/- 2.7 mV. Log P was in the range of 1.29-2.09 and mucus permeation studies with these SEDDS revealed a clear correlation between droplet size and permeation rate. The smaller SEDDS were, the higher their mucus permeating properties were. Negatively charged SEDDS demonstrated a higher permeation rate than positively charged SEDDS. In comparison to liposomes and solid nanocarriers SEDDS exhibited up to 5-fold higher mucus permeating properties. CONCLUSION: Small droplet size and negative zeta potential of SEDDS could be identified as key parameters for their mucus permeating properties. PMID- 29339248 TI - Recent trends of nanomedicinal approaches in clinics. AB - Nanotechnology has become the indispensable cutting edge science providing solutions to many problems associated with human being. The application of nanotechnology associated to human health "nanomedicine" has revolutionized the drug delivery system by providing improved pharmacological and therapeutic properties of drugs. These advantageous effects of drug loaded nanocarrier systems are embraced by the pharmaceutical industries for the development of different effective nanocarriers. Currently, several drug loaded nanoformulations are approved by the Food and Drug Administration (FDA), and some of them are undergoing clinical trials for the human use. In this review, we have discussed the progress achieved so far for various drug loaded nanoformulations along with few emerging nanoformulations that are about to enter into clinical trials. PMID- 29339249 TI - Semifluorinated alkane based systems for enhanced corneal penetration of poorly soluble drugs. AB - Semifluorinated alkanes (SFAs) are amphiphilic liquids that can dissolve hydrophobic drugs to form clear solutions. This study evaluated the potential of two SFAs to act as vehicle for topical ocular drug delivery. After confirming ocular safety, an ex vivo corneal penetration model was developed to determine drug distribution and corneal bioavailability. Hydrophobic dye distribution in the different corneal layers was visualised under a confocal microscope. Corneal bioavailability of cyclosporine A (CsA) dissolved in perfluorobutylpentane (F4H5) or perfluorohexyloctane (F6H8) was compared to commercially available CsA ophthalmic emulsions, Restasis(r) and Ikervis(r). Precorneal residence of the four test vehicles containing the hydrophobic dye was also compared using an ex vivo corneal tissue model. Preferential accumulation of the hydrophobic dye in the corneal epithelium was observed with higher amounts detectable when delivered via the SFAs compared to Restasis or Ikervis. A significant improvement in corneal CsA penetration was observed after application of a single dose of 0.05% CsA in F4H5 and F6H8 when compared to Restasis with the area under curve over 4 h (AUC(0-4h)) being at least 8-fold greater for both SFAs (p < .0001). Moreover, the AUC(0-4h) of 0.1% CsA in F4H5 was almost 5-fold greater than Ikervis (p < .0001). Finally, the precorneal residence time of both SFA solutions was significantly longer than that of the commercial emulsions with the AUC(0-60min) being 2- to 11-fold greater. This study demonstrated that SFAs can significantly improve the local bioavailability of hydrophobic drugs by increasing corneal penetration as well as prolonging precorneal residence. They therefore offer a promising new platform for topical drug delivery to the eye. PMID- 29339250 TI - Discovery of novel HSP90 inhibitors that induced apoptosis and impaired autophagic flux in A549 lung cancer cells. AB - Heat shock protein 90 (HSP90) inhibition has aroused increasing enthusiasm in antitumor strategies in recent years. According to our previous studies, we synthesized a series of coumarin pyrazoline compounds HCP1-HCP6 that might be HSP90 inhibitors. Interactions between HCP1-HCP6 and HSP90 were examined and antitumor activities of them were investigated in A549 lung cancer cells. Results showed that all the six derivatives could interact with HSP90, in which HCP1 exhibited the best binding ability and inhibited the activity of HSP90. Meanwhile, HCP1-HCP6 reduced the cell viability of A549 cells and HCP1 possessed the lowest IC50 value. Above all HCP1 exerted better HSP90 inhibitory and anticancer effects than our initially identified HSP90 inhibitor DPB. As to the underlying mechanism, HCP1-HCP6 not only induced apoptosis as DPB but also blocked autophagic flux in A549 cells. Therefore, we discovered a novel HSP90 inhibitor HCP1 that had better biological activity and provided us a useful tool to explore the underlying mechanism of lung cancer therapy. PMID- 29339251 TI - Quinoxaline derivatives as new inhibitors of coxsackievirus B5. AB - Enteroviruses are among the most common and important human pathogens for which there are no specific antiviral agents approved by the US Food and Drug Administration so far. Particularly, coxsackievirus infections have a worldwide distribution and can cause many important diseases. We here report the synthesis of new 14 quinoxaline derivatives and the evaluation of their cytotoxicity and antiviral activity against representatives of ssRNA, dsRNA and dsDNA viruses. Promisingly, three compounds showed a very potent and selective antiviral activity against coxsackievirus B5, with EC50 in the sub-micromolar range (0.3 0.06 MUM). A combination of experimental techniques (i.e. virucidal activity, time of drug addition and adsorption assays) and in silico modeling studies were further performed, aiming to understand the mode of action of the most active, selective and not cytotoxic compound, the ethyl 4-[(2,3-dimethoxyquinoxalin-6 yl)methylthio]benzoate (6). PMID- 29339252 TI - Structure-based design of human immuno- and constitutive proteasomes inhibitors. AB - Starting from the X-ray structure of our previous tripeptidic linear mimics of TMC-95A in complex with yeast 20S proteasome, we introduced new structural features to induce a differential inhibition between human constitutive and immunoproteasome 20S particles. Libraries of 24 tripeptidic and 6 dipeptidic derivatives were synthesized. The optimized preparation of 3-hydroxyoxindolyl alanine residues from tryptophan and their incorporation in peptides were described. Several potent inhibitors of human constitutive proteasome and immunoproteasome acting at the nanomolar level (IC50 = 7.1 nM against the chymotrypsin-like activity for the best inhibitor) were obtained. A cytotoxic effect at the submicromolar level was observed against 6 human cancer cell lines. PMID- 29339253 TI - Design, synthesis and bioevalucation of novel 2,3-dihydro-1H-inden-1-amine derivatives as potent and selective human monoamine oxidase B inhibitors based on rasagiline. AB - Parkinson's disease (PD) is associated with elevated levels of hMAO-B in the brain, and MAO-B has been recognized a successful target for developing anti-PD drugs. Herein we report rasagiline derivatives as novel potent and selective hMAO B inhibitors. They were designed by employing fragment-based drug design strategy to link rasagiline and hydrophobic fragments, which may target a hydrophobic pocket in the entrance cavity of hMAO-B. Different linkers such as -OCH2-, -SCH2 , -OCH2CH2-, -OCH2CH2O-, -OCH2CH2CH2O- were tried. A promising selective hMAO-B inhibitor D14 with similar inhibitory activity as rasagiline and improved isoform selectivity was yielded. The selectivity profile of compounds reported herein suggests that we can further develop more potent hMAO-B inhibitors with high isoform selectivity through this strategy. PMID- 29339254 TI - Design, synthesis, biological evaluation and docking studies of new 3-(4,5 dihydro-1H-pyrazol/isoxazol-5-yl)-2-phenyl-1H-indole derivatives as potent antioxidants and 15-lipoxygenase inhibitors. AB - New candidates of 3-(4,5-dihydro-1H-pyrazol/isoxazol-5-yl)-2-phenyl-1H-indole derivatives (4-7) were designed combining the pyrazoline/isoxazoline heterocycles and 2-phenylindole to explore its potential as 15-lipoxygenase (15-LOX) inhibitors. The design of the new derivatives was based on utilizing the antioxidant properties of pyrazoline, 2-phenylindole and the good 15-LOX inhibition properties of indolylpyrazoline. The derivatives were synthesized adopting simple and laboratory friendly reaction conditions to give the target compounds in quantitative yields. The resulting indolylpyrazolines/isoxazolines were evaluated as antioxidants against 2,2-diphenyl-1-picrylhydrazyl (DPPH), nitric oxide (NO) and superoxide dismutase (SOD); indolylpyrazoline (4b) was the most potent antioxidant against SOD assay (IC50 = 1.78 MUM) to be superior to ascorbic by 2 folds. Consistently, (4b) was the most potent inhibitor when tested against Soybean 15-LOX (IC50 = 3.84 MUM) excelling quercetin as standard inhibitor by 1.8 folds. Some of the new derivatives were docked into the active binding site of human 15-LOX (PDB entry 4NRE) emphasizing the most potent derivative (4b) and the least potent one (4c). Docking solutions of compounds (4b), (4c), (5b) and (6c) revealed that (4b) was the only compound that got stabilized into the catalytic pocket of enzyme by pi-cation interaction with the catalytic Fe+ and formation of one hydrogen bond with Ile 676 amino acid. Other derivatives including the least potent one variably got stabilized into the active binding pocket by pi-cation interaction with the catalytic Fe+ but failed to form hydrogen bond with Ile 676. For the future optimization of the generated inhibitors, (i) antioxidant activity against SOD, (ii) the inhibitor stabilization by pi-cation interaction with the catalytic Fe+3 and (iii) formation of hydrogen bond with Ile 676 should be regarded. PMID- 29339255 TI - Design, synthesis and biological evaluation of LX2343 derivatives as neuroprotective agents for the treatment of Alzheimer's disease. AB - A series of LX2343 derivatives were designed, synthesized and evaluated as neuroprotective agents for Alzheimer's disease (AD) in vitro. Most of the compounds displayed potent neuroprotective activities. Especially for compound A6, exhibited a remarkable EC50 value of 0.22 MUM. Further investigation demonstrated that compound A6 can significantly reduce Abeta production and increase Abeta clearance, and alleviate Tau hyperphosphorylation. Most importantly, compound A6 could ameliorate learning and memory impairments in APP/PS1 transgenic mice. The present study evidently showed that compound A6 is a potent neuroprotective agent and might serve as a promising lead candidate for the treatment of Alzheimer's disease. PMID- 29339256 TI - The PBII gene of the human salivary proline-rich protein P-B produces another protein, Q504X8, with an opiorphin homolog, QRGPR. AB - OBJECTIVES: The NCBI gene database and human-transcriptome database for alternative splicing were used to determine the expression of mRNAs for P-B (SMR3B) and variant form of P-B. The translational product from the former mRNA was identified as the protein named P-B, whereas that from the latter has not yet been elucidated. In the present study, we investigated the expression of P-B and its variant form at the protein level. DESIGN: To identify the variant protein of P-B, (1) cationic proteins with a higher isoelectric point in human pooled whole saliva were purified by a two dimensional liquid chromatography; (2) the peptide fragments generated from the in-solution of all proteins digested with trypsin separated and analyzed by MALDI-TOF-MS; and (3) the presence or absence of P-B in individual saliva was examined by 15% SDS-PAGE. RESULTS: The peptide sequences (I37PPPYSCTPNMNNCSR52, C53HHHHKRHHYPCNYCFCYPK72, R59HHYPCNYCFCYPK72 and H60HYPCNYCFCYPK72) present in the variant protein of P-B were identified. The peptide sequence (G6PYPPGPLAPPQPFGPGFVPPPPPPPYGPGR36) in P-B (or the variant) and sequence (I37PPPPPAPYGPGIFPPPPPQP57) in P-B were identified. The sum of the sequences identified indicated a 91.23% sequence identity for P-B and 79.76% for the variant. There were cases in which P-B existed in individual saliva, but there were cases in which it did not exist in individual saliva. CONCLUSIONS: The variant protein is produced by excising a non-canonical intron (CC-AC pair) from the 3'-noncoding sequence of the PBII gene. Both P-B and the variant are subject to proteolysis in the oral cavity. PMID- 29339257 TI - Changes in the concentrations of inflammatory and oxidative status biomediators (MIP-1 alpha, PMN elastase, MDA, and IL-12) in depressed patients with and without posttraumatic stress disorder. AB - BACKGROUND: Both proinflammatory cytokines and oxidative stress are considered an imbalance between the cellular production of reactive oxygen species and the antioxidant defense mechanisms. An inflammatory response that occurs in depression leads to a synergy between pro-inflammatory cytokines and oxidative stress. This synergy induces common signal transduction pathways that boost the inflammatory cascade. The object of this study was to assess the concentrations of inflammatory and oxidative status biomediators such as MIP-1alpha, PMN elastase, MDA, and IL-12 in depressed patients with and without posttraumatic stress disorder (PTSD), and with PTSD alone. METHODS: The number of participants enrolled in the study was 460. Out of them, 420 were determined to be suffering from depression, and 40 (20 males and 20 females) comprised the control group. The subjects were divided into groups, each consisting of 60 participants (30 males and 30 females) with: mild depression (MD), moderate depression (MOD), severe depression (SeD), MD and PTSD (MD+PTSD), MOD and PTSD (MOD+PTSD), SeD and PTSD (Sed+PTSD), and PTSD alone. At 7:00 a.m. all patients had blood samples collected to assess serum concentrations of the studied parameters using the Elisa method. RESULTS: Depression became more severe as the concentration levels of MIP-1alpha, PMN elastase, MDA, and IL-12 changed. CONCLUSION: Studied parameters can be used as markers of chronic stress in both depression and PTSD, either comorbid or alone, to make an early diagnosis and evaluate disease severity. Revealed changes confirm the presence of a biological response in depression. PMID- 29339258 TI - Relationship between very early brain structure and neuromotor, neurological and neurobehavioral function in infants born <31 weeks gestational age. AB - AIM: This study aimed to examine associations between structural MRI and concurrent motor, neurological and neurobehavioral measures at 30-32 weeks postmenstrual age (PMA; 'Early'), and at term equivalent age ('Term'). METHOD: In this prospective cohort study, infants underwent Early MRI (n = 119; 73 male; median 32 weeks 1 day PMA) and Term MRI (n = 102; 61 male; median 40 weeks 4 days PMA) at 3 T. Structural images were scored generating white matter (WM), cortical gray matter, deep gray matter, cerebellar and global brain abnormality scores. Clinical measures were General Movements Assessment (GMs), Hammersmith Neonatal Neurological Examination (HNNE) and NICU Neonatal Neurobehavioral Scale (NNNS). The Premie-Neuro was administered Early and the Test of Infant Motor Performance (TIMP) and a visual assessment at Term. RESULTS: Early MRI cerebellar scores were strongly associated with neurological components of HNNE (reflexes), NNNS (Hypertonicity), the Premie-Neuro neurological subscale (regression coefficient beta = -0.06; 95% confidence interval CI = -0.09, -0.04; p < .001) and cramped synchronized GMs (beta = 1.10; 95%CI = 0.57, 1.63; p < .001). Term MRI WM and global scores were strongly associated with the TIMP (WM beta = -1.02; 95%CI = 1.67, -0.36; p = .002; global beta = -1.59; 95%CI = -2.62, -0.56; p = .001). INTERPRETATION: Brain structure on Early and Term MRI was associated with concurrent motor, neurological and neurobehavioral function in very preterm infants. PMID- 29339259 TI - Perturbations of gut microbiome genes in infants with atopic dermatitis according to feeding type. AB - BACKGROUND: Perturbations of the infant gut microbiota can shape development of the immune system and link to the risk of allergic diseases. OBJECTIVE: We sought to understand the role of the gut microbiome in patients with atopic dermatitis (AD). The metagenome of the infant gut microbiome was analyzed according to feeding types. METHODS: Composition of the gut microbiota was analyzed in fecal samples from 129 infants (6 months old) by using pyrosequencing, including 66 healthy infants and 63 infants with AD. The functional profile of the gut microbiome was analyzed by means of whole-metagenome sequencing (20 control subjects and 20 patients with AD). In addition, the total number of bacteria in the feces was determined by using real-time PCR. RESULTS: The gut microbiome of 6 month-old infants was different based on feeding types, and 2 microbiota groups (Bifidobacterium species-dominated and Escherichia/Veillonella species-dominated groups) were found in breast-fed and mixed-fed infants. Bacterial cell amounts in the feces were lower in infants with AD than in control infants. Although no specific taxa directly correlated with AD in 16S rRNA gene results, whole metagenome analysis revealed differences in functional genes related to immune development. The reduction in genes for oxidative phosphorylation, phosphatidylinositol 3-kinase-Akt signaling, estrogen signaling, nucleotide binding domain-like receptor signaling, and antigen processing and presentation induced by reduced colonization of mucin-degrading bacteria (Akkermansia muciniphila, Ruminococcus gnavus, and Lachnospiraceae bacterium 2_1_58FAA) was significantly associated with stunted immune development in the AD group compared with the control group (P < .05). CONCLUSIONS: Alterations in the gut microbiome can be associated with AD because of different bacterial genes that can modulate host immune cell function. PMID- 29339261 TI - Mumps infection but not childhood vaccination induces persistent polyfunctional CD8+ T-cell memory. PMID- 29339260 TI - The complement system in the airway epithelium: An overlooked host defense mechanism and therapeutic target? PMID- 29339262 TI - The long-term physical and psychological health impacts of flooding: A systematic mapping. AB - BACKGROUND: Flooding has caused significant and wide ranging long-term health impacts for affected populations. However, until now, the long-term health outcomes, epidemiological trends and specific impact factors of flooding had not been identified. In this study, the relevant literature was systematically mapped to create the first synthesis of the evidence of the long-term health impacts of flooding. METHODS: The systematic mapping method was used to collect and categorize all the relevant literature. A study was included if it had a description or measurement of health impacts over six months after flooding. The search was limited to peer reviewed articles and grey literature written in English, published from 1996 to 2016. RESULTS: A total of 56 critical articles were extracted for the final map, including 5 qualitative and 51 quantitative studies. Most long-term studies investigated the psychological impacts of flooding, including PTSD, depression, anxiety, psychiatric disorders, sleep disorder and suicide. Others investigated the physiological impacts, including health-related quality of life, acute myocardial infarction, chronic diseases, and malnutrition. Social support was proved to be protective factors that can improve health outcomes in the long-term after flooding. To date, there have been relatively few reviews had focused on the long-term health impacts of flooding. This study coded and catalogued the existing evidence across a wide range of variables and described the long-term health consequences within a conceptual map. DISCUSSION AND CONCLUSIONS: Although there was no boundary between the short term and the long-term impacts of flooding, the identified health outcomes in this systematic mapping could be used to define long-term health impacts. The studies showed that the prevalence of psychological diseases had a reversed increasing trend occurred even in the long-term in relatively poor post-flooding environments. Further cohort or longitudinal research focused on disability, chronic diseases, relocation population, and social interventions after flooding, are urgently required. PMID- 29339263 TI - Impact of organic amendments (biochar, compost and peat) on Cd and Zn mobility and solubility in contaminated soil of the Campine region after three years. AB - To determine the long-term impact of organic amendments on metal (Cd and Zn) immobilization, soil from the Campine region was amended with holm oak-derived biochar, compost, and peat, and monitored over a 3-year period. Pot experiments were conducted by mixing the amendments independently at 2% and 4% (g/g) with the soil. The mobility and solubility of metals in the treatments were assessed by means of rhizon soil moisture samplers, sequential BCR extractions, and diffusive gradient in thin films (DGT). Over the three-year period, the 2% biochar addition resulted in an average decrease in pore water concentration of 40% for Cd and 48% for Zn whereas the 4% addition led to an average decrease of 66% for Cd and 77% for Zn. The immobilization effect in the biochar treatments was attributed to the consistently higher pH and lower concentrations of dissolved organic carbon (DOC) in the soil. The latter may have been caused by sorption of DOC onto the surface of biochar thereby increasing its negatively charged functional groups that are able to sorb cations. On the other hand, compost and peat had the unwanted effect of significantly increasing the concentrations of Cd and Zn in the soil pore water. This was partly due to the formation of soluble organo-metallic complexes as significantly higher DOC concentrations were found in the compost and peat treatments. Results from the DGT measurements, after a 24 h deployment time, revealed a low resupply (R <= 0.4) of Cd and Zn from the solid phase to the soil solution in both amended and unamended soil. This suggests a case of slow metal desorption kinetics in the soil that was relatively unchanged by the presence of organic amendments. PMID- 29339264 TI - Source apportionment of soil heavy metals using robust absolute principal component scores-robust geographically weighted regression (RAPCS-RGWR) receptor model. AB - The traditional source apportionment models, such as absolute principal component scores-multiple linear regression (APCS-MLR), are usually susceptible to outliers, which may be widely present in the regional geochemical dataset. Furthermore, the models are merely built on variable space instead of geographical space and thus cannot effectively capture the local spatial characteristics of each source contributions. To overcome the limitations, a new receptor model, robust absolute principal component scores-robust geographically weighted regression (RAPCS-RGWR), was proposed based on the traditional APCS-MLR model. Then, the new method was applied to the source apportionment of soil metal elements in a region of Wuhan City, China as a case study. Evaluations revealed that: (i) RAPCS-RGWR model had better performance than APCS-MLR model in the identification of the major sources of soil metal elements, and (ii) source contributions estimated by RAPCS-RGWR model were more close to the true soil metal concentrations than that estimated by APCS-MLR model. It is shown that the proposed RAPCS-RGWR model is a more effective source apportionment method than APCS-MLR (i.e., non-robust and global model) in dealing with the regional geochemical dataset. PMID- 29339265 TI - Spatio-temporal distribution of soil nitrogen in Poyang lake ecological economic zone (South-China). AB - Revealing the spatio-temporal distribution of soil nitrogen (N) contributes to N management and prevention of N pollution. The objective of this work is to study the spatio-temporal distribution of soil N and their driving factors in the topsoil (0-20 cm) of farmland in Yugan county, China in 1982 and 2012. Data were collected from 200 sampling sites of the second national soil survey in Yugan in 1982 and 423 sampling sites of the soil testing and formula fertilization project in 2012. On average total N (TN) and available N (AN) significantly increased from 1.50 g kg-1 and 153.04 mg kg-1 in 1982 to 1.58 g kg-1 and 179.75 mg kg-1 in 2012, respectively. The distance of spatial autocorrelation for TN increased from 2.79 to 6.18 km and from 2.97 to 18.00 km for AN from 1982 to 2012. The nugget/sill ratio for TN (0.472 in 1982 and 0.581 in 2012) indicated that soil TN driving by natural characteristics in 1982 to human activities in 2012. The nugget/sill ratio for soil AN (0.471 in 1982 and 0.688 in 2012) indicated that soil AN is more influenced by human activities. The major factors driving the spatio-temporal distribution of soil N was N application rate. To promote the sustainable development of agriculture and eco-environment, we should improve the awareness of farmers on chemical fertilizers (particularly N) and the level of N fertilizer management, increase the use of manure and organic fertilizer and facilitate rational fertilization by farmers. PMID- 29339266 TI - Long-term trend analysis on total and extreme precipitation over Shasta Dam watershed. AB - California's interconnected water system is one of the most advanced water management systems in the world, and understanding of long-term trends in atmospheric and hydrologic behavior has increasingly being seen as vital to its future well-being. Knowledge of such trends is hampered by the lack of long period observation data and the uncertainty surrounding future projections of atmospheric models. This study examines historical precipitation trends over the Shasta Dam watershed (SDW), which lies upstream of one of the most important components of California's water system, Shasta Dam, using a dynamical downscaling methodology that can produce atmospheric data at fine time-space scales. The Weather Research and Forecasting (WRF) model is employed to reconstruct 159years of long-term hourly precipitation data at 3km spatial resolution over SDW using the 20th Century Reanalysis Version 2c dataset. Trend analysis on this data indicates a significant increase in total precipitation as well as a growing intensity of extreme events such as 1, 6, 12, 24, 48, and 72 hour storms over the period of 1851 to 2010. The turning point of the increasing trend and no significant trend periods is found to be 1940 for annual precipitation and the period of 1950 to 1960 for extreme precipitation using the sequential Mann-Kendall test. Based on these analysis, we find the trends at the regional scale do not necessarily apply to the watershed-scale. The sharp increase in the variability of annual precipitation since 1970s is also detected, which implies an increase in the occurrence of extreme wet and dry conditions. These results inform long-term planning decisions regarding the future of Shasta Dam and California's water system. PMID- 29339267 TI - Effects of exotic plantation forests on soil edaphon and organic matter fractions. AB - There is uncertainty and limited knowledge regarding soil microbial properties and organic matter fractions of natural secondary forest accompanying chemical environmental changes of replacement by pure alien plantation forests in a hilly area of southwest of Sichuan province China. The aim of this study was to evaluate the impact of natural secondary forest (NSF) to pure Cryptomeria fortunei forest (CFF) and Cunninghamia lanceolata forest (CLF) on soil organic fractions and microbial communities. The results showed that the soil total phospholipid fatty acids (PLFAs), total bacteria and fungi, microbial carbon pool, organic recalcitrant carbon (C) and (N) fractions, soil microbial quotient and labile and recalcitrant C use efficiencies in each pure plantation were significantly decreased, but their microbial N pool, labile C and N pools, soil carbon dioxide efflux, soil respiratory quotient and recalcitrant N use efficiency were increased. An RDA analysis revealed that soil total PLFAs, total bacteria and fungi and total Gram-positive and Gram-negative bacteria were significantly associated with exchangeable Al3+, exchangeable acid, Al3+, available P and Mg2+ and pH, which resulted into microbial functional changes of soil labile and recalcitrant substrate use efficiencies. Modified microbial C- and N-use efficiency due to forest conversion ultimately meets those of rapidly growing trees in plantation forests. Enlarged soil labile fractions and soil respiratory quotients in plantation forests would be a potential positive effect for C source in the future forest management. Altogether, pure plantation practices could provoke regulatory networks and functions of soil microbes and enzyme activities, consequently leading to differentiated utilization of soil organic matter fractions accompanying the change in environmental factors. PMID- 29339268 TI - Incidence of Second Primary Malignancies after Autologous Transplantation for Multiple Myeloma in the Era of Novel Agents. AB - The advent of novel agents for multiple myeloma (MM) is cause for a re examination of the incidence of second primary malignancies (SPMs). We examined the SPM rate in MM patients who were enrolled in the prospective observational CALM (Collaboration to Collect Autologous Transplant outcome in Lymphoma and Myeloma) study. Between 2008 and 2012, 3204 patients with MM underwent a first autologous hematopoietic stem cell transplantation. Plerixafor was used as a mobilizing agent for patients with poor (or potentially poor) stem cell mobilization as defined by the respective centers. A total of 135 patients developed SPMs, with a cumulative incidence of 5.3% (95% confidence interval, 4.4 to 6.3) at 72 months. Ninety-four patients developed solid tumors, 30 developed hematologic malignancies, and 11 developed an SPM of an unknown type. The cumulative incidence of known hematologic and solid malignancies were 1.4% and 3.6%, respectively, at 72 months. In a univariate analysis, use of radiotherapy, type of induction regimen, hematopoietic stem cell dose, poor mobilizer status, plerixafor use, and sex did not influence the cumulative incidence of SPMs. Only age over 65 years was statistically associated with an increased incidence. Overall, the incidence of SPMs was comparable to earlier estimations of SPMs in MM. PMID- 29339269 TI - Phase 2 Study of an Intravenous Busulfan and Melphalan Conditioning Regimen for Autologous Stem Cell Transplantation in Patients with Multiple Myeloma (KMM150). AB - This prospective study evaluated the efficacy and toxicity of intravenous busulfan and melphalan as a conditioning regimen for autologous stem cell transplantation (ASCT) in patients with multiple myeloma (MM). A total of 99 patients with MM, enrolled between January 2013 and March 2016, received intravenous busulfan (9.6 mg/kg) and melphalan (140 mg/m2) before ASCT. The median time to transplant was 6.2 months, and 90 (90.9%) patients underwent ASCT within 12 months of the diagnosis. The overall response rate after ASCT was 94.0%, including 43.5% with a stringent complete response/complete response, 27.3% with very good partial response, and 23.2% with partial response. The most common severe nonhematologic toxicity (grade 3 to 4) was infection (26.3%) and stomatitis (15.2%). Three (3.2%) patients developed veno-occlusive disease. No treatment-related mortality was observed. After a median follow-up of 26.1 months, the median progression-free survival was 27.2 months (range, 13.0 to 41.4 months) and median overall survival was not reached. In conclusion, a conditioning regimen of intravenous busulfan and melphalan was effective and tolerable. ClinicalTrials.gov. number: NCT01923935. PMID- 29339270 TI - Proceedings From the Fourth Haploidentical Stem Cell Transplantation Symposium (HAPLO2016), San Diego, California, December 1, 2016. AB - The resurgence of haploidentical stem cell transplantation (HaploSCT) over the last decade is one of the most important advances in the field of hematopoietic stem cell transplantation (HSCT). The modified platforms of T cell depletion either ex vivo (CD34+ cell selection, "megadoses" of purified CD34+ cells, or selective depletion of T cells) or newer platforms of in vivo depletion of T cells, with either post-transplantation high-dose cyclophosphamide or intensified immune suppression, have contributed to better outcomes, with survival similar to that in HLA-matched donor transplantation. Further efforts are underway to control viral reactivation using modified T cells, improve immunologic reconstitution, and decrease the relapse rate post-transplantation using donor derived cellular therapy products, such as genetically modified donor lymphocytes and natural killer cells. Improvements in treatment-related mortality have allowed the extension of haploidentical donor transplants to patients with hemoglobinopathies, such as thalassemia and sickle cell disease, and the possible development of platforms for immunotherapy in solid tumors. Moreover, combining HSCT from a related donor with solid organ transplantation could allow early tapering of immunosuppression in recipients of solid organ transplants and hopefully prevent organ rejection in this setting. This symposium summarizes some of the most important recent advances in HaploSCT and provides a glimpse in the future of fast growing field. PMID- 29339271 TI - Early Increase in Complement Terminal Pathway Activation Marker sC5b-9 Is Predictive for the Development of Thrombotic Microangiopathy after Stem Cell Transplantation. AB - Hematopoietic stem cell transplantation (HSCT)-associated thrombotic microangiopathy (TA-TMA) is a multifactorial complication, and its prediction is largely unresolved. Our aim was to analyze changes of complement profile after HSCT to identify potential markers of TA-TMA development. Thirty-three consecutive pediatric patients (9.6 +/- 4.4 years old) who underwent allogeneic HSCT due to malignant (n = 17) or nonmalignant (n = 16) indications were included in this study. Graft-versus-host disease (GVHD) was diagnosed using Glucksberg criteria, viral reactivation was monitored, 5 different TA-TMA diagnostic criteria were applied, and all important clinical and laboratory parameters of TA TMA activity were registered. Complement pathway activities, components and terminal pathway activation marker (sC5b-9) levels were systematically measured before transplantation and on days 28, 56, and 100 after HSCT. During the first 100 days after HSCT, 1 of 33 patients died (day 50, multiple organ failure), whereas 10 subjects met the criteria for TA-TMA, typically on day 61 (range, 16 to 98 days). TA-TMA was preceded by acute GVHD in 3 of 10 patients, by viral reactivation in 2 of 10, or by both in 4 of 10 cases. Baseline sC5b-9 levels did not differ in patients without (200 [interquartile range, 144 to 266] ng/mL), or with (208 [interquartile range, 166 to 271] ng/mL) subsequent TA-TMA; however, on day 28 significant differences were observed (201 [interquartile range, 185 to 290] ng/mL versus 411 [interquartile range, 337 to 471] ng/mL; P = .004). Importantly, all 10 patients with TMA showed increase in sC5b-9 level from baseline level to day 28, whereas in patients without TMA the same tendency was observed for only 9 of 23 patients (P = .031). No additional complement parameters were closely associated with the development of TA-TMA. Development of TA-TMA occurred in 30% of our patients, typically after GVHD and/or viral reactivation. However, early raise of sC5b-9 activation marker was predictive for later development of TA-TMA, and should therefore be considered as an alarming sign necessitating a careful monitoring of all TA-TMA activity markers. Further studies enrolling a higher number of patients are necessary to determine if terminal pathway activation is an independent predictor of TA-TMA. PMID- 29339272 TI - An Old Friend Is Trouble for Double-Expressor and Double-Hit Lymphoma. PMID- 29339273 TI - Electrolyte selection and microbial toxicity for electrochemical oxidative water treatment using a boron-doped diamond anode to support site specific contamination incident response. AB - Intentional and unintentional contamination incidents, such as terrorist attacks, natural disasters, and accidental spills, can result in large volumes of contaminated water. These waters may require pre-treatment before disposal and assurances that treated waters will not adversely impact biological processes at wastewater treatment facilities, or receiving waters. Based on recommendations of an industrial workgroup, this study addresses such concerns by studying electrochemical advanced oxidation process (EAOP) pre-treatment for contaminated waters, using a boron-doped diamond (BDD) anode, prior to discharge to wastewater treatment facilities. Reaction conditions were investigated, and microbial toxicity was assessed using the Microtox(r) toxicity assay and the Nitrification Inhibition test. A range of contaminants were studied including herbicides, pesticides, pharmaceuticals and flame retardants. Resulting toxicities varied with supporting electrolyte from 5% to 92%, often increasing, indicating that microbial toxicity, in addition to parent compound degradation, should be monitored during treatment. These toxicity results are particularly novel because they systematically compare the microbial toxicity effects of a variety of supporting electrolytes, indicating some electrolytes may not be appropriate in certain applications. Further, these results are the first known report of the use of the Nitrification Inhibition test for this application. Overall, these results systematically demonstrate that anodic oxidation using the BDD anode is useful for addressing water contaminated with refractory organic contaminants, while minimizing impacts to wastewater plants or receiving waters accepting EAOP treated effluent. The results of this study indicate nitrate can be a suitable electrolyte for incident response and, more importantly, serve as a baseline for site specific EAOP usage. PMID- 29339274 TI - Geochemical sources of metal contamination in a coal mining area in Chhattisgarh, India using lead isotopic ratios. AB - A geochemical study of the trace metals and lead isotopic ratios of soil and sediments in Korba, Chhattisgarh, India is presented here for the first time. Korba, the nation's 'power hub' is also the fifth among its eighty-eight most critically polluted industrial hotspots. A very high mean concentration (in mg kg 1) of V (308), Cr (567), Mn (3442), Co (92), Cu (218), Zn (426), Pb (311), Th (123) and U (32) characterized the sediments of the studied area with mean Igeo values of the trace metals ranging from -2.29 to 3.27. In the two-ratio scatter Pb isotope plot of the different environmental matrices, except for human blood, coal, soil, sediments, non-washed leaves, flyash and diesel overlapped linearly in the mixing line between diesel as the highest anthropogenic end member and a core sediment fraction representing its geogenic counterpart. The mean 207Pb/206Pb Pb ratio decreased in the order of diesel (0.9012) > flyash (0.8757) > coal (0.8498) soils and sediments (0.8374) > lowest core sediment fraction (0.8017). Principal Component Analysis (PCA) of the trace metal data extracted V, Cr, Cu, Zn, Pb, U and Th in the first component PC1. The northeastern part of the study area revealed major hotspots of V, Cu, Co, Zn and Pb near the flyash dykes of the power stations. Human blood used as a biomarker for Pb pollution in this study had a mean blood lead level of 28 MUg/dl with a distinctive high 207Pb/206Pb ratio of 0.8828. PMID- 29339275 TI - Biochar-based functional materials in the purification of agricultural wastewater: Fabrication, application and future research needs. AB - Nowadays, agricultural contamination is becoming more and more serious due to the rapid growth of agricultural industry, which discharged antibiotics, pesticides or toxic metals into farmlands. A large number of researchers have applied biochar-based functional materials to the treatment of agricultural wastewater contamination. Meanwhile, biochar has also proved to be a very promising and effective technology in water purification field due to its various beneficial properties (e.g., cost effective, high specific surface area, and surface reactive groups). The focus of this review is to highlight the fabrication methods and application of biochar-based functional materials with the removal of different agricultural contaminants, and discuss the underlying mechanisms. However, the application of biochar-based functional materials is currently under its infancy, with the main hindrance is identified as the gap between laboratory scale and field application, immaturity of engineered biochar production technologies, and lack of quality standards. In order to fill these knowledge gaps, more efforts should be made to pay for the relevant research in future studies. PMID- 29339276 TI - Reliability of oscillometric central blood pressure and central systolic loading in individuals over 50 years: Effects of posture and fasting. AB - BACKGROUND AND AIMS: The between-day reliability of oscillometric pulse wave analysis has been demonstrated in a young, healthy population but not in an older sample. This study examined the between-day reliability of the SphygmoCor XCEL in individuals over 50 years. As blood pressure is measured in a range of postures and fasting states (supine/seated, fasted/non-fasted), this study also investigated the effect of these variables on central blood pressure and central systolic loading. METHODS: Fifty-one adults (m = 21; age 57 +/- 6.4 y) were tested on three mornings in supine and seated conditions and in fasted and non fasted states. Data was analysed as a whole and for normotensive (n = 25) and hypertensive participants (n = 26). RESULTS: SphygmoCor XCEL demonstrated strong reliability in the whole sample for central systolic and diastolic blood pressures, augmentation index (AIx) and AIx75 (ICC = 0.77-0.95). Significant interaction effects were observed in central diastolic blood pressure, central pulse pressure, augmentation index (AIx) and AIx75 (p < 0.05; etap2 = 0.10-0.23). Fasting state had a greater influence on central pressures in a seated than supine posture, but a greater effect on central systolic loading measures in a supine posture. CONCLUSIONS: The SphygmoCor XCEL is a reliable tool to assess central haemodynamic variables in an older population. It would be pertinent for clinicians and researchers to record central measures in a supine posture to minimise the effects of food consumption. Conversely, the assessment of central systolic loading should occur in a seated condition to minimise the influence of varying fasting states. PMID- 29339277 TI - Molecular phylogeny of Systellognatha (Plecoptera: Arctoperlaria) inferred from mitochondrial genome sequences. AB - The infraorder Systellognatha is the most species-rich clade in the insect order Plecoptera and includes six families in two superfamilies: Pteronarcyoidea (Pteronarcyidae, Peltoperlidae, and Styloperlidae) and Perloidea (Perlidae, Perlodidae, and Chloroperlidae). To resolve the debatable phylogeny of Systellognatha, we carried out the first mitochondrial phylogenetic analysis covering all the six families, including three newly sequenced mitogenomes from two families (Perlodidae and Peltoperlidae) and 15 published mitogenomes. The three newly reported mitogenomes share conserved mitogenomic features with other sequenced stoneflies. For phylogenetic analyses, we assembled five datasets with two inference methods to assess their influence on topology and nodal support within Systellognatha. The results indicated that inclusion of the third codon positions of PCGs, exclusion of rRNA genes, the use of nucleotide datasets and Bayesian inference could improve the phylogenetic reconstruction of Systellognatha. The monophyly of Perloidea was supported in the mitochondrial phylogeny, but Pteronarcyoidea was recovered as paraphyletic and remained controversial. In this mitochondrial phylogenetic study, the relationships within Systellognatha were recovered as (((Perlidae + (Perlodidae + Chloroperlidae)) + (Pteronarcyidae + Styloperlidae)) + Peltoperlidae). PMID- 29339278 TI - Amphotericin B loaded sulfonated chitosan nanoparticles for targeting macrophages to treat intracellular Candida glabrata infections. AB - The current study assesses the potential of functionalised chitosan nanoparticles (CNPs) for proficient macrophage delivery of amphotericin B (AmpB) for the management of Candida glabrata fungemia. Chitosan was functionalised by the method of sulfation by using chlorosulfonic acid and the developed compound was confirmed by FTIR, 1H NMR and degree of sulfation and CHNS analysis. Amphotericin B encapsulated sulfated chitosan (AmpB-SCNPs), when characterized showed a hydrodynamic diameter of 310 +/- 14 nm and zeta potential of 41.5 +/- 2 mV. The safety of AmpB-SCNPs was established by the alamar cytotoxicity assay in nanoparticle treated macrophages following 24 h incubation. The AmpB-SCNPs showed a significant increase in the reduction of C. glabrata in comparison with the bare AmpB and AmpB-CNPs (55.2 and 42.7 vs 11.12 cfu/ml) indicating that AmpB SCNPs could be a promising carrier for specific delivery of AmpB to macrophages for effective treatment of Candida glabrata fungemia. PMID- 29339279 TI - Green synthesis of antimicrobial and antitumor N,N,N-trimethyl chitosan chloride/poly (acrylic acid)/silver nanocomposites. AB - The present study is imported to solve two critical problems we face in our daily life which are microbial pollution and colon cancer. One pot green synthesis of a water soluble polyelectrolyte complex (PEC) between cationic polysaccharide as N,N,N-trimethyl chitosan chloride (TMC) and anionic polymer as poly (acrylic acid) (PAA) in presence of silver nanoparticles to yield (TMC/PAA/Ag) nanocomposites with different Ag weight ratios. Structure of TMC, PAA and TMC/PAA (PEC) were proved via different analysis tools. TMC/PAA and its Ag nanocomposites are used as antimicrobial agents against different pathogenic bacteria and fungi to solve microbial pollution. TMC/PAA-Silver nanocomposites had the highest antimicrobial activity which increases with increasing Ag %. Cytotoxicity data confirmed also that TMC/PAA/Ag (3%) had the most cytotoxic effect (the less cell viability %) towards colon cancer. TMC/PAA (PEC) was formed through electrostatic interactions between N-quaternized (-N+R3) groups in TMC and carboxylate (-COO-) groups in PAA. PMID- 29339280 TI - Simultaneous degumming and production of a natural gum from Crotalaria juncea seeds: Physicochemical and rheological characterization. AB - The oil extracted from Crotalaria juncea (Sunn-hemp) contains 70% of gum. Several methods of degumming are attempted in order to maximize the yield of gum. During appropriate water induced degumming, about 95-98% of phosphatides are separated. The maximum oil yield for two types of degummimg processes are 0.59% and 0.69% corresponding to hot water and pure O-phosphoric acid (19.88 N) treatment respectively. The % oil yield obtained for TOP degumming is about 0.78%. Physico chemical characteristics of the isolated gum such as moisture, ash, protein, fat and aqueous solubility along with FTIR and TGA analysis are studied in order to evaluate the effect of extraction process. The behaviour of gum on the molecular scale is evaluated through alcohol treatment. Chromatographic analysis determines the monosaccharide content of the gum with glucose: xylose: arabinose::54: 34:1. Rheological characterization shows that the juncea gum solutions are shear rate dependent and the behaviour is shear-thinning (or pseudoplastic). Results show that the temperature dependent viscosity decreases with increasing shear rate. PMID- 29339281 TI - Bifidogenic effects of Cordyceps sinensis fungal exopolysaccharide and konjac glucomannan after ultrasound and acid degradation. AB - The bifidogenic effects of exopolysaccharide (EPS) of a medicinal fungus (Cordyceps sinensis) and a well-known food polysaccharide konjac glucomannan (KGM) with different molecular weight (MW) ranges were evaluated through in vitro experiments in liquid cultures of Bifidobacteria. Native EPS and KGM were partially degraded with power ultrasound (US) to improve the water solubility, and further hydrolysed with trifluoroacetic acid to much lower MW. The acid hydrolysed fractions (EPS-AH and KGM-AH) supported the growth of all five tested bifidobacterial species, while the US-degraded high MW fractions, EPS-US and KGM US, could only slightly support the growth of some species. All EPS fractions increased the acetic acid production of most bifidobacterial species. Most remarkably, the high MW EPS-US, EPS-AH and KGM-US fractions significantly enhanced the cell viability with much higher colony forming unit (CFU) counts, suggesting a protective effect of these high MW polysaccharides for the bacterial survival. The results have shown that MW was a significant factor on the bifidogenic properties of partially degraded EPS and KGM. PMID- 29339282 TI - Probing the interaction of two chemotherapeutic drugs of oxali-palladium and 5 fluorouracil simultaneously with milk carrier protein of beta-lactoglobulin. AB - beta-Lactoglobulin (betaLG) is a basic element of globular carrier protein, which is the major protein in the whey of ruminant milk and is of main interest in the dairy industry. In the present study, the simultaneous effects of both of the important anticancer drugs of 5-fluorouracil (5-FU) and oxali-palladium, on the structure of betaLG were investigated using different spectroscopic methods of fluorescence and circular dichroism (CD) in combination with a molecular docking at two temperatures of 25 and 37 degrees C. The resulted data from intrinsic fluorescence spectra of protein indicated that 5-FU and oxalli-palladium can quench the fluorescence intensity of betaLG in dose-dependent manner via static mechanism of fluorescence quenching. Analysis of fluorescence quenching data in agreement with theoretical results have represented that there are I binding sites on betaLG for binding of oxali-palladium and also II binding sites for 5 FU, at both temperatures of 25 and 37 degrees C. Also, competitive binding results showed that the number of binding sites on protein for each of the drug when the protein incubated with one of the drug did not show any changes. The values of thermodynamic parameters of DeltaH degrees , DeltaS degrees and DeltaG degrees illustrate that van der Waals and hydrogen-bond interactions have the main role in the binding of oxali-palladium and 5-FU to betaLG, respectively. The analysis of circular dichroism spectra indicated reduction in stability of the protein and alteration in the secondary structure of protein with reduction of alpha-helical structure and increasing of beta-sheet structure in the presence of increasing concentration of oxali-palladium and 5-FU. Also, the transition temperature (Tm) value of betaLG indicated the significant decreasing in the presence of 5-FU and oxali-palladium. As a result, it can be concluded that both of the chemotherapeutic drugs of oxali-palladium and 5-FU can bind to independent binding sites on carrier protein of betaLG, which can be used in design and simultaneous delivery of both drugs. PMID- 29339283 TI - Hydroxyethyl cellulose hydrogel for wound dressing: Fabrication, characterization and in vitro evaluation. AB - In this study, new hydrogel membranes were developed based on hydroxyethyl cellulose (HEC) supplemented with tungsten oxide for further implementing in wound treatment. HEC hydrogel membranes were fabricated and crosslinked using citric acid (CA). Various tests were carried out including FTIR, XRD, porosity measurements, swelling, mechanical properties, gel fraction, and thermal gravimetric analysis to evaluate the efficiency of the prepared membranes as wound dressing material. In addition, wound healing activity of the examined membranes for human dermal fibroblast cell line was investigated employing in vitro scratching model. Furthermore, the potency of the prepared membranes to suppress wound complications was studied via determination of their anti inflammatory and antibacterial activities exploiting MTT, ELISA, and disk agar diffusion methods. The results demonstrated that the HEC hydrogel membranes revealed an anti-inflammatory and antibacterial efficacy. Moreover, HEC improved the safety of tungsten oxide toward normal human cells (white blood cells and dermal fibroblast). Furthermore, HEC membranes loaded with WO3 revealed the highest activities against Salmonella sp. pursued by P. aeruginosa in compared with the negative HEC hydrogel membrane. The current approach corroborated that HEC amended by tungsten oxide could be applied as a promising safe candidate for wound dressing material. PMID- 29339284 TI - rBmTI-6 attenuates pathophysiological and inflammatory parameters of induced emphysema in mice. AB - Protease/anti-protease imbalance is the main pathogenic mechanism of emphysema and protease inhibitors have been recognized as potential molecules to treat the disease conditions. In this work the rBmTI-6 first domain (rBmTI-6-D1), a recombinant Kunitz-type serine proteinase inhibitor, was used to verify its effect in prevention or minimization of PPE-induced emphysema in mice. C57BL/6 mice were submitted to a PPE-induced emphysema model and treated with rBmTI-6-D1 before the emphysema development. We showed that the rBmTI-6-D1 treatment was sufficient to avoid the loss of elastic recoil, an effective decrease in alveolar enlargement and in the number of macrophages and lymphocytes in bronchoalveolar lavage fluid. Proteolytic analysis showed a significant increase in elastase activity in PPE-VE (induced emphysema) group that is controlled by rBmTI-6-D1. Kallikrein activity was decreased in the PPE-rBmTI6 (induced emphysema and inhibitor treated) group when compared to PPE-VE group. Although rBmTI-6-D1, did not present a neutrophil elastase (NE) inhibitory activity, the results show that the inhibitor interfered in the pathway of NE secretion in PPE-emphysema mice model. The role of rBmTI-6-D1 in the prevention of emphysema development in the mice model, apparently, is related with a control of inflammatory response due the trypsin/kallikrein inhibitory activity of rBmTI-6-D1. PMID- 29339285 TI - Facile synthesis and rheological characterization of nanocomposite hyaluronan organoclay hydrogels. AB - We report a facile methodology for the synthesis of inorganic-organic hydrogels based on integrative assembly of aminopropyl magnesium phyllosilicate (aminoclay) and sodium salt of hyaluronic acid. The viscoelastic materials produced by electrostatic interactions and crosslinking of hyaluronan in the presence of exfoliated synthetic organoclay results in the formation of gel-like behavior retaining a high amount of water. This was confirmed by a rheological study revealing significant dominance of the elastic response over the entire deformation frequency range used. The mechanical strength of the aminoclay hyaluronan hydrogels was found to be higher than that for related materials based on poly(vinylpyrrolidone)-aminoclay hydrogels. PMID- 29339286 TI - Chitosan: An undisputed bio-fabrication material for tissue engineering and bio sensing applications. AB - Biopolymers have been serving the mankind in various ways since long. Over the last few years, these polymers have found great demand in various domains which includes bio medicine, tissue engineering, bio sensor fabrications etc. because of their excellent bio compatibility. In this context, chitosan has found global attention due to its environmentally benign nature, biocompatibility, biodegradability, and ease of availability. In last one decade or so, extensive research in active biomaterials, like chitosan has led to the development of novel delivery systems for drugs, genes, and biomolecules; and regenerative medicine. Additionally, chitosan has also witnessed its usage in functionalization of biocompatible materials, nanoparticle (NP) synthesis, and immobilization of various bio-recognition elements (BREs) to form active bio surfaces with great ease. Keeping these aspects in mind, we have written a comprehensive review which aims to acquaint its readers with the exceptional properties of chitosan and its usage in the domain of biomedicine, tissue engineering, and biosensor fabrication. Herein, we have briefly explained various aspects of direct utilization of chitosan and then presented vivid strategies towards formulation of chitosan based nanocomposites for biomedicine, tissue engineering, and biosensing applications. PMID- 29339287 TI - Scalable fabrication of sulfated silk fibroin nanofibrous membranes for efficient lipase adsorption and recovery. AB - Fabricating adsorptive materials for fast and high efficient adsorption of enzymes is critical to match the great demands for separation and recovery of enzymes used as biocatalysts. However, it has proven extremely challenging. Here, we report a cost-effective strategy to construct the sulfated group surface functionalized silk fibroin nanofibrous membranes (SS-SFNM) under mild conditions for positively charged Candida rugosa lipase adsorption. The naturally abundant silk is thus reconstructed into nanofibrous membranes with tunable surface functions. Thereby, the resultant SS-SFNM exhibited excellent adsorption performance towards lipase, including a superior adsorption capacity of 148 mg g 1, fast adsorption equilibrium within 3 h and good reversibility. The fabrication of such fascinating silk-based materials may provide new chance into the design and development of multi-functional membranes for various separated applications. PMID- 29339288 TI - Hyaluronic acid in Pluronic F-127/F-108 hydrogels for postoperative pain in arthroplasties: Influence on physico-chemical properties and structural requirements for sustained drug-release. AB - In this study, we reported the hyaluronic acid (HA) on supramolecular structure of Pluronic F-127 (PLF-127) and/or Pluronic F-108 (PLF-127) hydrogels, as well as their effects on release mechanisms, looking forward their application as lidocaine (LDC) drug-delivery systems in arthroplastic surgeries. We have studied the HA-micelle interaction using Dynamic Light Scattering (DLS), the micellization and sol-gel transition processes by Differential Scanning Calorimetry (DSC) and Rheology., of PL-based hydrogels and. The presence of HA provided the formation of larger micellar dimensions from ~26.0 to 42.4nm. The incorporation of HA did not change the micellization temperatures and stabilized hydrogels rheological properties (G'>G"), showing no interference on PL thermoreversible properties. Small-Angle-X-ray Scattering (SAXS) patterns revealed that HA incorporation effects were pronounced for PLF-127 and PLF-108 systems, showing transitions from lamellar to hexagonal phase organization (HA PLF-127) and structural changes from cubic to gyroid and/or cubic to lamellar. The HA insertion effects were also observed on drug release profiles, since lower LDC release constants (Krel=0.24-0.41mM.h-1) were observed for HA-PLF-127, that presented a hexagonal phase organization. Furthermore, the HA-PL systems presented reduced in vitro cytotoxic effects, pointed out their tendency to self assembly and possible application as drug delivery systems. PMID- 29339289 TI - Characterization of two extracellular beta-glucosidases produced from the cellulolytic fungus Aspergillus sp. YDJ216 and their potential applications for the hydrolysis of flavone glycosides. AB - A cellulolytic fungus YDJ216 was isolated from a compost and identified as an Aspergillus sp. strain. Two extracellular beta-glucosidases, BGL1 and BGL2, were purified using ultrafiltration, ammonium sulfate fractionation, and High-Q chromatography. Molecular masses of BGL1 and BGL2 were estimated to be 97 and 45 kDa, respectively, by SDS-PAGE. The two enzymes eluted as one peak at 87 kDa by Sephacryl S-200 chromatography, and located at similar positions in a zymogram after intact gel electrophoresis, suggesting BGL1 and BGL2 might be monomeric and dimeric, respectively. Both enzymes showed similar enzymatic properties; they were optimally active at pH 4.0-4.5 and 60 degrees C, and had similar half-lives at 70 degrees C. Two enzymes also preferred p-nitrophenyl glucose (pNPG) with the same Km and hardly hydrolyzed cellobiose, suggesting both enzymes are aryl beta-glucosidases. However, Vmax for pNPG of BGL1 (953.2 U/mg) was much higher than those of BGL2 (66.5U/mg) and other beta-glucosidases reported. When tilianin (a flavone glycoside of acacetin) was reacted with both enzymes, inhibitory activity for monoamine oxidase, relating to oxidation of neurotransmitter amines, was increased closely to the degree obtained by acacetin. These results suggest that BGL1 and BGL2 could be used to hydrolyze flavone glycosides to improve their inhibitory activities. PMID- 29339290 TI - Biocatalytic strategies in the production of galacto-oligosaccharides and its global status. AB - Galactooligosaccharides (GOSs) are the non-digestible carbohydrates that are composed of 3-10 or longer molecules of galactose and the terminal glucose molecule. These are considered as prebiotics owing to their various health benefits, and therefore is the major focus of research. These are generally synthesized by the catalytic activity of the glycoside hydrolases (GH) utilizing lactose as a substrate, which results in the mixture of GOSs differing in their degree of polymerization. Different microbial glycoside hydrolases have been used for the production. Moreover, to improve the production, different biotechnological strategies have been applied, such as use of immobilized enzymes or recombinant enzymes. Thus, this review discusses the different prospects of GOSs production and its purification techniques. PMID- 29339291 TI - Social capital and child nutrition in India: The moderating role of development. AB - Empirical studies of social capital rarely take into account the socioeconomic context of the region in which it operates, indeed as most of this research has been located in high income countries. It is imperative to investigate how development may influence the impact of social capital, especially in developing countries. This paper examines the relationship between social capital and child nutrition using the India Human Development Survey, 2005-2006. Using a multilevel framework and a sample of 6770 rural children under the age of five, it finds that household based bridging social capital, expressed as connections with development based organizations, is positively associated with child nutrition. Bonding social capital, expressed as ties with caste and religious based organizations, has the opposite impact. At the village level, contextual measures of social capital are associated with nutritional status of children, but their influence is conditional on local development. PMID- 29339292 TI - Selective HCN1 block as a strategy to control oxaliplatin-induced neuropathy. AB - Chemotherapy-Induced Peripheral Neuropathy (CIPN) is the most frequent adverse effect of pharmacological cancer treatments. The occurrence of neuropathy prevents the administration of fully-effective drug regimen, affects negatively the quality of life of patients, and may lead to therapy discontinuation. CIPN is currently treated with anticonvulsants, antidepressants, opioids and non-opioid analgesics, all of which are flawed by insufficient anti-hyperalgesic efficacy or addictive potential. Understandably, developing new drugs targeting CIPN-specific pathogenic mechanisms would dramatically improve efficacy and tolerability of anti-neuropathic therapies. Neuropathies are associated to aberrant excitability of DRG neurons due to the alteration in the expression or function of a variety of ion channels. In this regard, Hyperpolarization-activated Cyclic Nucleotide gated (HCN) channels are overexpressed in inflammatory and neuropathic pain states, and HCN blockers have been shown to reduce neuronal excitability and to ameliorate painful states in animal models. However, HCN channels are critical in cardiac action potential, and HCN blockers used so far in pre-clinical models do not discriminate between cardiac and non-cardiac HCN isoforms. In this work, we show an HCN current gain of function in DRG neurons from oxaliplatin-treated rats. Biochemically, we observed a downregulation of HCN2 expression and an upregulation of the HCN regulatory beta-subunit MirP1. Finally, we report the efficacy of the selective HCN1 inhibitor MEL57A in reducing hyperalgesia and allodynia in oxaliplatin-treated rats without cardiac effects. In conclusion, this study strengthens the evidence for a disease-specific role of HCN1 in CIPN, and proposes HCN1-selective inhibitors as new-generation pain medications with the desired efficacy and safety profile. PMID- 29339293 TI - Methylphenidate significantly alters the functional coupling between the prefrontal cortex and dopamine neurons in the ventral tegmental area. AB - Amphetamine-like psychostimulants, including methylphenidate, have been shown to produce two opposing effects on dopamine (DA) neurons: a DA receptor-mediated feedback inhibition and a non-DA receptor-mediated excitation. To test whether the latter effect is mediated through the prefrontal cortex (PFC), we made dual site recordings from the PFC and ventral tegmental area (VTA). Consistent with previous reports, methylphenidate inhibited VTA DA neurons. The D2 receptor antagonist raclopride completely reversed the inhibition and further increased the activity, particularly bursting, to above pre-drug baseline. This increase in DA cell activity was blocked by the alpha1 receptor antagonist prazosin, suggesting an effect mediated through alpha1 receptors. Recordings in the PFC showed that methylphenidate increased PFC UP state duration and shifted the functional coupling between the PFC and DA neurons from negative to positive. The former effect was partially reversed by not only prazosin, but also raclopride, whereas the latter was reversed only by raclopride. These results suggest that methylphenidate increases PFC cell activity through both alpha1 and D2 receptors. Its effect on PFC-DA cell functional coupling, however, is mediated through D2 receptors. The finding that the latter effect was unaffected by prazosin further suggests that it does not play a significant role in the alpha1-mediated excitatory effect of methylphenidate on DA neurons. However, the shift in PFC-DA cell functional coupling from negative to positive may significantly alter the relative timing between DA and glutamate release from DA and PFC terminals and thus the synaptic plasticity that depends on DA-glutamate interaction. PMID- 29339294 TI - Ketamine for the treatment of addiction: Evidence and potential mechanisms. AB - Ketamine is a dissociative anaesthetic drug which acts on the central nervous system chiefly through antagonism of the n-methyl-d-aspartate (NMDA) receptor. Recently, ketamine has attracted attention as a rapid-acting anti-depressant but other studies have also reported its efficacy in reducing problematic alcohol and drug use. This review explores the preclinical and clinical research into ketamine's ability to treat addiction. Despite methodological limitations and the relative infancy of the field, results thus far are promising. Ketamine has been shown to effectively prolong abstinence from alcohol and heroin in detoxified alcoholics and heroin dependent individuals, respectively. Moreover, ketamine reduced craving for and self-administration of cocaine in non-treatment seeking cocaine users. However, further randomised controlled trials are urgently needed to confirm ketamine's efficacy. Possible mechanisms by which ketamine may work within addiction include: enhancement of neuroplasticity and neurogenesis, disruption of relevant functional neural networks, treating depressive symptoms, blocking reconsolidation of drug-related memories, provoking mystical experiences and enhancing psychological therapy efficacy. Identifying the mechanisms by which ketamine exerts its therapeutic effects in addiction, from the many possible candidates, is crucial for advancing this treatment and may have broader implications understanding other psychedelic therapies. In conclusion, ketamine shows great promise as a treatment for various addictions, but well-controlled research is urgently needed. This article is part of the Special Issue entitled 'Psychedelics: New Doors, Altered Perceptions'. PMID- 29339295 TI - Characteristics of clinical and environmental vanM-carrying vancomycin-resistant enterococci isolates from an infected patient. AB - vanM, an uncommon glycopeptide resistance gene, was first identified in an Enterococcus faecium isolate (Efm-HS0661) from Shanghai, China, in 2006 and has been predominant in this city since 2011. A vanM-carrying E. faecium was isolated from the bloodstream of a patient in an intensive care unit (ICU) in Hangzhou, China, in 2014. Further surveillance screening of a rectal swab and environmental surfaces of the patient yielded a large number of vanM-positive E. faecium. These isolates (including 1 from the bloodstream, 1 from the rectal swab and 43 representative isolates from environmental samples) were classified into four pulsed-field gel electrophoresis (PFGE) patterns and two sequence types (ST78 and ST564). PCR amplification and sequence analysis indicated that the genetic structure surrounding the vanM gene of these isolates was similar to that of the original vanM-carrying isolate Efm-HS0661. This study highlights the emergence of infections and environmental contamination caused by vanM-carrying E. faecium in an ICU of another Chinese city outside of Shanghai. PMID- 29339296 TI - Silent transmission of an IS1294b-deactivated mcr-1 gene with inducible colistin resistance. AB - Global dissemination of the mobile colistin resistance mcr-1 is of particular concern as colistin is one of the last-resort antibiotics for the treatment of severe infections caused by carbapenem-resistant Gram-negative bacteria. In this study, an inactive form of mcr-1 in a fluoroquinolone-resistant and colistin susceptible uropathogenic Escherichia coli isolate (ECO3347) was characterised. The mcr-1 gene was deactivated by insertion of a 1.7-kb IS1294b element flanked by two tetramers (GTTC) and located on a 62-kb pHNSHP45-like plasmid (p3347-mcr 1). Single-step and multistep selections were used to induce colistin resistance in vitro in ECO3347. ECO3347 acquired colistin resistance (MIC = 16-32 mg/L) only after a serial passage selection with increasing concentrations of colistin (2-8 mg/L). Deactivated mcr-1 was re-activated by loss of IS1294b without any remnants in most colistin-resistant mutants. In addition, a novel amino acid variant (Leu105Pro) in the CheY homologous receiver domain of PmrA was detected in one colistin-resistant mutant. Plasmid p3347-mcr-1+ carrying the re-activated mcr-1 gene is transferrable to E. coli J53 recipient with a high conjugation rate (ca. 10-1 cells per recipient cell). Transconjugants showed an identical growth status to J53, suggesting lack of a fitness cost after acquiring p3347-mcr-1+. These results highlight that the disrupted mcr-1 gene has the potential for wide silent dissemination with the help of pHNSHP45-like epidemic plasmids. Inducible colistin resistance may likely compromise the success of clinical treatment and infection control. Continuous monitoring of mcr-1 is imperative for understanding and tackling its dissemination in different forms. PMID- 29339297 TI - Experiences and perspectives of implementing antimicrobial stewardship in five French hospitals: a qualitative study. AB - The aim of this study was to describe current antimicrobial stewardship programmes (ASPs) in France, both at policy level and at local implementation level, and to assess how ASP leaders (ASPL) worked and prioritised their activities. A qualitative study based on face-to-face semi-structured interviews with healthcare professionals responsible for ASPs across five French hospitals was conducted. Five infectious diseases specialists and one microbiologist were interviewed between April-June 2016. Stewards had dedicated time to perform ASP activities in two university-affiliated hospitals, whilst in the other hospitals (one university, one general and one semi-private), ASPLs had to balance these activities with clinical practice. Consequently, they had to adapt interventions according to their resources (IT or human). Responding to colleagues' consultation requests formed baseline work. Systematic and pro-active measures allowed for provision of unsolicited counselling, whilst direct counselling on wards required appropriate staffing. ASPLs aimed at increasing clinicians' ability to prescribe adequately and awareness of the unintended consequences of inappropriate use of antibiotics. Thus, persuasive, e.g. education, measures were preferred to coercive ones. ASPLs faced several challenges in implementing the ASP: overcoming physicians' or units' reluctance; and balancing the influence of medical hierarchy and professional boundaries. Beyond resources constraints, ASPLs' conceptions of their work, as well as contextual and cultural aspects, led them to adopt a persuasive and collaborative approach of counselling. This is the first qualitative study regarding ASPs in France exploring stewards' experiences and points of view. PMID- 29339298 TI - Implementation and impact of an audit and feedback antimicrobial stewardship intervention in the orthopaedics department of a tertiary-care hospital: a controlled interrupted time series study. AB - A prospective audit and feedback antimicrobial stewardship intervention conducted in the Orthopaedics Department of a university hospital in Portugal was evaluated by comparing an interrupted time series in the intervention group with a non intervention (control) group. Monthly antibiotic use (except cefazolin) was measured as the World Health Organization's Anatomical Therapeutic Chemical defined daily doses (ATC-DDD) from January 2012 to September 2016, excluding the 6-month phase of intervention implementation starting on 1 January 2015. Compared with the control group, the intervention group had a monthly decrease in the use of fluoroquinolones by 2.3 DDD/1000 patient-days [95% confidence interval (CI) 3.97 to -0.63]. An increase in the use of penicillins by 103.3 DDD/1000 patient days (95% CI 47.42 to 159.10) was associated with intervention implementation, followed by a decrease during the intervention period (slope = -5.2, 95% CI -8.56 to -1.82). In the challenging scenario of treatment of osteoarticular and prosthetic joint infections, an audit and feedback intervention reduced antibiotic exposure and spectrum. PMID- 29339299 TI - Is There a Difference in the Outcome of Mid-Urethral Sling Operations Performed by Urogynecologists Compared with Supervised Residents? AB - STUDY OBJECTIVE: To compare the operative results of midurethral sling (MUS) surgeries for stress urinary incontinence (SUI) performed by residents under the guidance of an attending specialist in urogynecology and those performed by attendings. DESIGN: Retrospective chart review (Canadian Task Force classification II-2). SETTING: University hospital. PATIENTS: A retrospective analysis of all MUS surgeries performed at a single public tertiary medical center between January 2009 and December 2013 was carried out. A total of 257 patients underwent transobturator tape (TOT) placement during the study period, including 136 (52.9%) placed by an attending specialist in urogynecology (group A) and 121 (47.1%) placed by a resident, under the guidance of an attending (group B). MEASUREMENTS: The efficacy of treatment was evaluated in terms of early postoperative course, reoperation, and symptom improvement, as based on the Pelvic Floor Distress Inventory short form (PFDI-20) questionnaire. The primary outcome was patient-reported symptoms of SUI, as assessed with the PFDI-20 questionnaire, as well as absence of surgical retreatment for SUI. RESULTS: Immediate postoperative complications were comparable in the 2 groups, as were subjective failure and self-reported SUI. The primary outcome-moderate and severe symptoms of SUI-were reported by 23.7% of the patients in group A and 23.6% of those in group B (p = .91). At a mean follow-up of 40 months in both groups, symptoms, as assessed using the urinary scale and prolapse scale of the PFDI-20, were also similar in the 2 groups. The rate of reoperation with repeated sling for SUI was 5% in both groups. CONCLUSION: The operative results of TOT surgery for SUI performed by residents under the guidance of an attending specialist in urogynecology did not differ significantly from those performed by the attendings themselves. PMID- 29339300 TI - Robotic Surgery in Elderly and Very Elderly Gynecologic Cancer Patients. AB - STUDY OBJECTIVE: To investigate the feasibility, safety, and short-term outcomes of robotic surgery (RS) for gynecologic oncologic indications (cervical, endometrial, and ovarian cancer) in elderly patients, especially women age 65 to 74 years (elderly group [EG]) compared with women age >=75 years (very elderly group [VEG]). DESIGN: Retrospective cohort study (Canadian Task Force classification II-2). SETTING: Catholic University of the Sacred Heart, Rome, Italy. PATIENTS: Between May 2013 and April 2017, 204 elderly and very elderly patients underwent RS procedures for gynecologic malignancies. RESULTS: The median age was 71 years (range, 65-74 years) in the EG and 77 years (range, 75-87 years) in the VEG. The incidence of cardiovascular disease was higher in the VEG (p = .038). The EG and VEG were comparable in terms of operative time, blood loss, and need for blood transfusion. Almost all (98.5%) of the patients underwent total/radical hysterectomy, 109 patients (55.6% of the EG vs 48.3% of the VEG) underwent pelvic lymphadenectomy, and 19 patients (10.5% of the EG vs 6.7% of the VEG) underwent aortic lymphadenectomy. A total of 7 (3.4%) conversions to open surgery were registered. Only 3 patients required postoperative intensive care unit admission. The median length of hospital stay was 2 days in each group. A total of 11 patients (5.6%) had early postoperative complications. Four patients (2.8%) in the EG and 2 patients (3.3%) in the VEG experienced grade >=2 complications. At the time of analysis, median follow-up was 18 months (range, 6-55 months). Eleven patients (5.6%) experienced disease relapse, 2 (1%) died of disease, and 3 (1.5%) died of cardiovascular disease. CONCLUSIONS: This study demonstrates the feasibility, safety, and good short-term outcomes of RS in elderly and very elderly gynecologic cancer patients. No patient can be considered too old for a minimally invasive robotic approach, but a multidisciplinary approach is the best management pathway; efforts to reduce associated morbidity are essential. PMID- 29339301 TI - A Polypectomy Nearly Becoming a Tragedy: A Case of Multiorgan Perforation. PMID- 29339302 TI - Bilateral Ureteral Stent Removal after 15 Years: A Case Report. AB - We present the first reported case of a patient with a forgotten ureteral stent. A 68-year-old woman had undergone radical hysterectomy for cervical cancer in 1997, at which time bilateral ureteral stents were placed. She was admitted to our hospital with stranguria, dysuria, and lower back pain of 10 days duration. Preoperative radiologic evaluation revealed the presence of ureteral stents, which had been in place since 1997. With the patient under general anesthesia, the bilateral stents were removed by urethral cystoscopy. No stone formation was noted. The procedure was easy and fast, and no intraoperative complications occurred. PMID- 29339303 TI - Estrogenic activity of cylindrospermopsin and anatoxin-a and their oxidative products by FeIII-B*/H2O2. AB - The cyanotoxins released into waters during cyanobacterial blooms can pose serious hazards to humans and animals. Apart from their toxicological mechanisms, cyanotoxins have been shown to be involved in estrogenic activity by in vivo and in vitro assays; however, there is limited information on the change in estrogenicity of cyanotoxins following chemical oxidation. In this study, the estrogenic activity of cylindrospermopsin (CYL) and anatoxin-a (ANA) at concentrations ranging from 2.4 * 10-7 M to 2.4 * 10-12 M (CYL) and 7.1 * 10-6 M to 7.1 * 10-11 M (ANA), and after treatment by the FeIII-B*/H2O2 catalyst system, was investigated by the yeast estrogen screen (YES) assay. The results indicate that CYL and ANA acted as agonists in the YES assay (CYL logEC50 = -8.901; ANA logEC50 = -6.789), their binding affinity to estrogen receptors is associated with their intrinsic properties, including ring structures and toxicant properties. CYL and ANA were shown to simulate endocrine disrupting chemicals (EDCs) to modulate the 17beta-estradiol-induced estrogenic activity, resulting in non-monotonic dose responses. The treated CYL showed a significantly altered estrogenicity compared to the untreated CYL (T(2) = 8.168, p <= .05), while the estrogenicity of the treated ANA was not significantly different to the untreated ANA (T(2) = 1.295, p > .05). Intermediate products generated from CYL and ANA oxidized by FeIII-B*/H2O2 were identified using Q-Exactive Tandem Mass Spectrometry (LC-MS/MS). Treatment with FeIII-B*/H2O2 yielded open-ring by products which likely resulted in CYL's reduced binding affinity to estrogen receptors. The insignificant change in the estrogenicity of treated ANA was possibly a result of its multiple ring structure products, which were likely able to bind to estrogen receptors. The comparisons for the estrogenicity of these cyanotoxins before and after FeIII-B*/H2O2 treatment suggest that the reductions in estrogenicity achieved by oxidation were dependent on the levels of cyanotoxins removed, as well as the estrogenicity of the degradation products. This is the first study on the change in the estrogenicity of CYL and ANA upon oxidation by FeIII-B*/H2O2, a high activity catalyst system. PMID- 29339304 TI - Transformation products formation of ciprofloxacin in UVA/LED and UVA/LED/TiO2 systems: Impact of natural organic matter characteristics. AB - The role of natural organic matter (NOM) in contaminants removal by photolysis and photocatalysis has aroused increasing interest. However, evaluation of the influence of NOM characteristics on the transformation products (TPs) formation and transformation pathways of contaminants has rarely been performed. This study investigated the decomposition kinetics, mineralization, TPs formation and transformation pathways of antibiotic ciprofloxacin (CIP) during photolysis and photocatalysis in the presence of three commercial NOM isolates (Sigma-Aldrich humic acid (SAHA), Suwannee River humic acid (SRHA) and Suwannee River NOM (SRNOM)) by using UVA light emitting diode (UVA/LED) as an alternative light source. NOM isolates insignificantly affected CIP photolysis but strongly inhibited CIP photocatalysis due to competitive radical quenching. The inhibitory effect followed the order of SAHA (49.6%) > SRHA (29.9%) > SRNOM (21.2%), consistent with their *OH quenching abilities, SUVA254 values and orders of aromaticity. Mineralization rates as revealed by F- release were negatively affected by NOM during CIP photocatalysis. TPs arising from hydroxylation and defluorination were generally suppressed by NOM isolates in UVA/LED and UVA/LED/TiO2 systems. In contrast, dealkylation and oxidation of piperazine ring were promoted by NOM. The enhancement in the apparent formation kinetics (kapp) of TP245, TP291, TP334a, TP334b and TP362 followed the order of SRNOM > SRHA > SAHA. kapp values were positively correlated with O/C ratio, carboxyl content, E2/E3 and fluorescence index (FI) of NOM and negatively related with SUVA254 values. The observed correlations indicate that NOM properties are important in determining the fate and transformation of organic contaminants during photolysis and photocatalysis. PMID- 29339305 TI - Modelling ROS formation in boreal lakes from interactions between dissolved organic matter and absorbed solar photon flux. AB - Concentrations of dissolved organic matter (DOM) are increasing in a large number of lakes across the Northern hemisphere. This browning serves a dual role for biota by protecting against harmful ultraviolet radiation, while also absorbing photosynthetically active radiation. The photochemical activation of DOM and subsequent formation of reactive oxygen species (ROS) is a potentially harmful side effect, but can be difficult to measure directly in situ. In this study, we combine a data set of physico-chemical properties from 71 Nordic lakes with in vitro ROS formation quantum yields to predict ROS formations across a representative boreal ecosystem gradient. For the upper centimeter of the water column, we calculate ROS formations in the range of 7.93-12.56 MUmol L-1 h-1. In the first meter, they range between 1.69 and 6.69 MUmol L-1 h-1 and in the remaining depth the range is 0.01-0.46 MUmol L-1 h-1. These ROS formations are comparable with previously field-measured hydrogen peroxide formation rates and likely affect both phyto- and zooplankton, as well as lake chemistry. Interestingly, wavelengths of the visible spectrum (>400 nm) contribute more than half of the overall ROS formation in surface-near water layers. The association between DOM and ROS formation was found to be two-fold. While DOM promotes ROS formation in the first centimeters of the water column, the shading effect of light attenuation overpowers this with increasing depth. In the context of water browning, our results indicate the emergence of an underestimated oxidative stress environment for lake biota in the upper centimeters of the water column. PMID- 29339306 TI - Morphological changes of bacterial cells upon exposure of silver-silver chloride nanoparticles synthesized using Agrimonia pilosa. AB - Facile, eco-friendly synthesis of metal nanoparticles has been proposed as a cost effective method. In the present study, we propose the facile synthesis of silver silver chloride (Ag-AgCl) nanoparticles (NPs) using the medicinally important Agrimonia pilosa plant extract without addition of capping or stabilizing agents. The Ag-AgCl NPs synthesis was observed at 40 degrees C after 10 min incubation; the synthesis of Ag-AgCl NPs was indicated by color change and confirmed by UV vis spectroscopic peak at 454 nm. TEM analysis confirmed Ag-AgCl NPs were 10-20 nm in size and spherical, and oval in shape. Elemental composition was determined by energy dispersive X-ray analysis, and crystalline structure was confirmed by X ray diffraction spectroscopy. Different phytocomponents present in the plant extract were analyzed by Gas Chromatography-Mass spectrometry, and the interaction of biomolecules in reduction process was analyzed by Fourier transform infrared spectroscopy studies. The synthesized Ag-AgCl NPs showed significant antibacterial efficiency, analyzed by well diffusion assay against pathogenic bacteria including Bacillus cereus, Listeria monocytogenes, Staphylococcus aureus, Staphylococcus saprophyticus, Escherichia coli, Pseudomonas putida. Minimum inhibitory concentration and minimum bactericidal concentration were evaluated by microbroth dilution, and spread plate method, respectively. The possible mechanism of bacterial growth inhibition is due to changes in bacterial cell wall morphology that was studied by FE-SEM analysis. PMID- 29339307 TI - Anticoccidial activity of fruit peel of Punica granatum L. AB - In the interests of food safety and public health, plants and their compounds are now re-emerging as an alternative approach to treat parasitic diseases. Here, we studied the anticoccidial effect of different solvent extracts of the fruit peel of Punica granatum-a commercial waste from pomegranate juice industries. The hope underlying these experiments was to find a sustainable natural product for controlling coccidiosis. The plant extracts were prepared using solvents of different polarity. Acute oral toxicity study was first carried out to see the safety of crude extracts. A high dose of crude extracts (300 mg/kg body weight) was tested for possession of anticoccidial activity against experimentally induced coccidial infection in broiler chicken. Activity was measured in comparison to the reference drug amprolium on the basis of oocyst output reduction, mean weight gain of birds and feed conversion ratio. Oocyst output was measured using Mc-Masters counting technique. Acute oral toxicity study showed that crude extracts of P. granatum are safe up to dosage of 2000 mg/kg body weight. LD50 was not determined as mortalities were not recorded in any of the five groups of chicken. For anticoccidial activity crude methanolic extract (CME) of the fruit peel of P. granatum showed the maximum effect as evident by oocyst output reduction (92.8 +/- 15.3), weight gain of birds (1403.0 +/- 11.9 g) and feed conversion ratio (1.66 +/- 0.04), thereby affirming the presence of alcohol soluble active ingredients in the plant. We also tested different doses (100-400 mg/kg body weight) of the CME of the fruit peel of P. granatum, the most active extract on E. tenella and observed a dose dependent effect. From the present study it can be concluded that alcoholic extract of the fruit peel of P. granatum has significant potential to contribute to the control of coccidian parasites of chicken. PMID- 29339308 TI - Antibiotic resistance and virulence traits of bacterial pathogens from infected freshwater fish, Labeo rohita. AB - Bacterial infectious diseases are a main dangerous problem in Aquaculture farming. It causes multiple diseases in fish as well as in human being and it has considerable virulence potential. In this connection, the moot of study focus to discriminate bacterial isolates recovered from naturally diseased Labeo rohita fish and their virulent characteristics. Based on the beta-haemolysis factor, four isolates (KADR11, KADR12, KADR13 and KADR14) were selected for further delineation. These bacterial isolates showed high similarity with Providencia rettgeri, Aeromonas sp., Aeromonas sp. and Aeromonas enteropelogenes respectively, using partial 16S r-RNA gene amplification and biochemical characterizations were also supported. The further study investigates the virulence characteristics of isolates showed separation of outer membrane proteins (OMPs) and lipopolysaccharides (LPS) which appeared between 19_80 kDa and 20_100 kDa in SDS_PAGE analysis respectively. All the four strains were complete resistant (100%) to beta-lactam antibiotics. L. rohita were injected intraperitoneally with 0 (control), 2.0 * 104, 2.0 * 105, 2.0 * 106, 2.0 * 107 and 2.0 * 108 cells/fish of Providencia rettgeri KADR11, Aeromonas sp. KADR12, Aeromonas sp. KADR13 and Aeromonas enteropelogenes KADR14 for the determination of lethal dose 50 (LD50) values, which were 2.4 * 107, 4.1 * 105, 2.7 * 107 and 7.4 * 105 cells/fish respectively. The results indicated that isolated strains were possessed the high pathogenic potential for L. rohita. PMID- 29339309 TI - Late chronotype is associated with enhanced amygdala reactivity and reduced fronto-limbic functional connectivity to fearful versus happy facial expressions. AB - Increasing evidence suggests late chronotype individuals are at increased risk of developing depression. However, the underlying neural mechanisms that confer risk are not fully understood. Here, fifty healthy, right-handed individuals without a current or previous diagnosis of depression, family history of depression or sleep disorder underwent functional magnetic resonance imaging (FMRI). Participants completed an implicit emotion processing task (gender discrimination) including happy and fearful facial expressions. Linear effects of chronotype on BOLD response in bilateral amygdala were tested for significance using nonparametric permutation tests. Functional connectivity between amygdala and prefrontal cortex was also investigated using psychophysiological interaction (PPI) analysis. A significant negative correlation between BOLD response and chronotype was observed in bilateral amygdala where later chronotype was associated with an enhanced amygdala response to fearful vs. happy faces. This response remained significant after sleep quality, age, gender, mood, and time of scan were included as covariates in the regression model. Later chronotype was also significantly associated with reduced functional connectivity between amygdala and dorsal anterior cingulate cortex (dACC). The current results appear consistent with theories of impaired emotion regulation of the limbic system (particularly the amygdala) associated with depression and may, in part, explain the increased vulnerability for depression in late chronotype individuals. PMID- 29339310 TI - Distant from input: Evidence of regions within the default mode network supporting perceptually-decoupled and conceptually-guided cognition. AB - The default mode network supports a variety of mental operations such as semantic processing, episodic memory retrieval, mental time travel and mind-wandering, yet the commonalities between these functions remains unclear. One possibility is that this system supports cognition that is independent of the immediate environment; alternatively or additionally, it might support higher-order conceptual representations that draw together multiple features. We tested these accounts using a novel paradigm that separately manipulated the availability of perceptual information to guide decision-making and the representational complexity of this information. Using task based imaging we established regions that respond when cognition combines both stimulus independence with multi-modal information. These included left and right angular gyri and the left middle temporal gyrus. Although these sites were within the default mode network, they showed a stronger response to demanding memory judgements than to an easier perceptual task, contrary to the view that they support automatic aspects of cognition. In a subsequent analysis, we showed that these regions were located at the extreme end of a macroscale gradient, which describes gradual transitions from sensorimotor to transmodal cortex. This shift in the focus of neural activity towards transmodal, default mode, regions might reflect a process of where the functional distance from specific sensory enables conceptually rich and detailed cognitive states to be generated in the absence of input. PMID- 29339312 TI - Studying emotion theories through connectivity analysis: Evidence from generalized psychophysiological interactions and graph theory. AB - Psychological construction models of emotion state that emotions are variable concepts constructed by fundamental psychological processes, whereas according to basic emotion theory, emotions cannot be divided into more fundamental units and each basic emotion is represented by a unique and innate neural circuitry. In a previous study, we found evidence for the psychological construction account by showing that several brain regions were commonly activated when perceiving different emotions (i.e. a general emotion network). Moreover, this set of brain regions included areas associated with core affect, conceptualization and executive control, as predicted by psychological construction models. Here we investigate directed functional brain connectivity in the same dataset to address two questions: 1) is there a common pathway within the general emotion network for the perception of different emotions and 2) if so, does this common pathway contain information to distinguish between different emotions? We used generalized psychophysiological interactions and information flow indices to examine the connectivity within the general emotion network. The results revealed a general emotion pathway that connects neural nodes involved in core affect, conceptualization, language and executive control. Perception of different emotions could not be accurately classified based on the connectivity patterns from the nodes of the general emotion pathway. Successful classification was achieved when connections outside the general emotion pathway were included. We propose that the general emotion pathway functions as a common pathway within the general emotion network and is involved in shared basic psychological processes across emotions. However, additional connections within the general emotion network are required to classify different emotions, consistent with a constructionist account. PMID- 29339311 TI - General, crystallized and fluid intelligence are not associated with functional global network efficiency: A replication study with the human connectome project 1200 data set. AB - One hallmark example of a link between global topological network properties of complex functional brain connectivity and cognitive performance is the finding that general intelligence may depend on the efficiency of the brain's intrinsic functional network architecture. However, although this association has been featured prominently over the course of the last decade, the empirical basis for this broad association of general intelligence and global functional network efficiency is quite limited. In the current study, we set out to replicate the previously reported association between general intelligence and global functional network efficiency using the large sample size and high quality data of the Human Connectome Project, and extended the original study by testing for separate association of crystallized and fluid intelligence with global efficiency, characteristic path length, and global clustering coefficient. We were unable to provide evidence for the proposed association between general intelligence and functional brain network efficiency, as was demonstrated by van den Heuvel et al. (2009), or for any other association with the global network measures employed. More specifically, across multiple network definition schemes, ranging from voxel-level networks to networks of only 100 nodes, no robust associations and only very weak non-significant effects with a maximal R2 of 0.01 could be observed. Notably, the strongest (non-significant) effects were observed in voxel-level networks. We discuss the possibility that the low power of previous studies and publication bias may have led to false positive results fostering the widely accepted notion of general intelligence being associated to functional global network efficiency. PMID- 29339313 TI - The human body odor compound androstadienone increases neural conflict coupled to higher behavioral costs during an emotional Stroop task. AB - The androgen derivative androstadienone (AND) is a substance found in human sweat and thus may act as human chemosignal. With the current experiment, we aimed to explore in which way AND affects interference processing during an emotional Stroop task which used human faces as target and emotional words as distractor stimuli. This was complemented by functional magnetic resonance imaging (fMRI) to unravel the neural mechanism of AND-action. Based on previous accounts we expected AND to increase neural activation in areas commonly implicated in evaluation of emotional face processing and to change neural activation in brain regions linked to interference processing. For this aim, a total of 80 healthy individuals (oral contraceptive users, luteal women, men) were tested twice on two consecutive days with an emotional Stroop task using fMRI. Our results suggest that AND increases interference processing in brain areas that are heavily recruited during emotional conflict. At the same time, correlation analyses revealed that this neural interference processing was paralleled by higher behavioral costs (response times) with higher interference related brain activation under AND. Furthermore, AND elicited higher activation in regions implicated in emotional face processing including right fusiform gyrus, inferior frontal gyrus and dorsomedial cortex. In this connection, neural activation was not coupled to behavioral outcome. Furthermore, despite previous accounts of increased hypothalamic activation under AND, we were not able to replicate this finding and discuss possible reasons for this discrepancy. To conclude, AND increased interference processing in regions heavily recruited during emotional conflict which was coupled to higher costs in resolving emotional conflicts with stronger interference-related brain activation under AND. At the moment it remains unclear whether these effects are due to changes in conflict detection or resolution. However, evidence most consistently suggests that AND does not draw attention to the most potent socio-emotional information (human faces) but rather highlights representations of emotional words. PMID- 29339314 TI - Surface-based characteristics of the cerebellar cortex visualized with ultra-high field MRI. AB - Although having a relatively homogeneous cytoarchitectonic organization, the cerebellar cortex is a heterogeneous region characterized by different amounts of myelin, iron and protein expression profiles. In this study, we used quantitative T1 and T2* mapping at ultra-high field (7T) MRI to investigate the tissue characteristics of the cerebellar gray matter surface and its layers. Detailed subject-specific surfaces were generated at three different cortical depths and averaged across subjects to create averaged T1- and T2*-maps on the cerebellar surface. T1 surfaces showed an alternation of lower and higher T1 values when going from the median to the lateral part of the cerebellar hemispheres. In addition, longer T1 values were observed in the more superficial gray matter layers. T2*-maps showed a similar longitudinal pattern, but no change related to the cortical depths. These patterns are possibly due to variations in the level of myelination, iron and zebrin protein expression. PMID- 29339315 TI - Insulin sensitivity predicts brain network connectivity following a meal. AB - There is converging evidence that insulin plays a role in food-reward signaling in the brain and has effects on enhancing cognition. Little is known about how these effects are altered in individuals with insulin resistance. The present study was designed to identify the relationships between insulin resistance and functional brain connectivity following a meal. Eighteen healthy adults (7 male, 11 female, age: 41-57 years-old) completed a frequently-sampled intravenous glucose tolerance test to quantify insulin resistance. On separate days at least one week apart, a resting state functional magnetic resonance imaging scan was performed: once after a mixed-meal and once after a 12-h fast. Seed-based resting state connectivity of the caudate nucleus and eigenvector centrality were used to identify relationships between insulin resistance and functional brain connectivity. Individuals with greater insulin resistance displayed stronger connectivity within reward networks following a meal suggesting insulin was less able to suppress reward. Insulin resistance was negatively associated with eigenvector centrality in the dorsal anterior cingulate cortex following a meal. These data suggest that individuals with less sensitivity to insulin may fail to shift brain networks away from reward and toward cognitive control following a meal. This altered feedback loop could promote overeating and obesity. PMID- 29339316 TI - Diagnosis and management of neuromyelitis optica spectrum disorders - An update. AB - Neuromyelitis optica (NMO) and Neuromyelitis optica spectrum disorders (NMOSD) are a group of autoimmune conditions characterized by inflammatory involvement of the optic nerve, spinal cord and central nervous system. Novel evidence showed a key role of autoantibodies against aquaporin-4 immunoglobulin G (AQP4 IgG) in the pathogenesis of NMOSD and, recently, new classification and diagnostic criteria have been adopted to facilitate an earlier identification and improve the management of these conditions. Diagnosis of NMOSD is currently based on clinical, neuroimaging and laboratory features. Standard treatment is based on the use of steroids and immunosuppressive drugs and aims to control the severity of acute attacks and to prevent relapses of the disease. This review gives an update of latest knowledge of NMOSD and NMO, emphasizing the novel diagnostic criteria and both current and future therapeutic approaches. PMID- 29339317 TI - Arterial stenosis in antiphospholipid syndrome: Update on the unrevealed mechanisms of an endothelial disease. AB - First described in 1983, antiphospholipid syndrome (APS) is an autoimmune condition characterized by the occurrence of recurrent arterial and/or venous thrombosis, and/or pregnancy morbidity, in the setting of persistent presence of antiphospholipid antibodies (aPL). While thrombosis is the most well-known pathogenic mechanism in this disorder, the relevance of some other mechanisms such as arterial stenosis is being increasingly recognized. Arterial stenosis has been first described in the renal arteries in patients with APS, however intracranial and coeliac arteries can also be involved with various and treatable clinical manifestations. The underlying pathophysiology of this stenotic arterial vasculopathy is not fully understood but some recent studies revealed new insights into the molecular mechanism behind this endothelial cell activation in APS. In this review, we discuss these newly discovered mechanisms and highlight the diagnostic and therapeutic modalities of the APS related arterial stenosis. PMID- 29339318 TI - Dietary patterns, body mass index and inflammation: Pathways to depression and mental health problems in adolescents. AB - BACKGROUND: Observational studies suggest that dietary patterns may impact mental health outcomes, although biologically plausible pathways are yet to be tested. We aimed to elucidate the longitudinal relationship between dietary patterns, adiposity, inflammation and mental health including depressive symptoms in a population-based cohort of adolescents. METHODS: Data were provided from 843 adolescents participating in the Western Australian Pregnancy Cohort (Raine) Study at 14 and 17 years (y) of age. Structural equation modelling was applied to test our hypothesised models relating dietary patterns, energy intake and adiposity (body mass index) at 14 y to adiposity and the pro-inflammatory adipokine (leptin) and inflammation (high sensitivity C-reactive protein - hs CRP) at 17 y, and these inflammatory markers to depressive symptoms (Beck Depression Inventory) and Internalising and Externalising Behavioral Problems (Child Behavior Check List Youth Self- Report) at 17 y. We further tested a reverse hypothesis model, with depression at 14 y as a predictor of dietary patterns at the same time-point. RESULTS: The tested models provided a good fit to the data. A 'Western' dietary pattern (high intake of red meat, takeaway, refined foods, and confectionary) at 14 y was associated with higher energy intake and BMI at 14 y, and with BMI and biomarkers of inflammation at 17 y (all p < .05). A 'Healthy' dietary pattern (high in fruit, vegetables, fish, whole grains) was inversely associated with BMI and inflammation at 17 y (p < .05). Higher BMI at 14 y was associated with higher BMI (p < .01), leptin (p < .05), hs CRP (p < .05), depressive symptoms (p < .05) and mental health problems (p < .05), all at 17 y. CONCLUSION: A 'Western' dietary pattern associates with an increased risk of mental health problems including depressive symptoms in adolescents, through biologically plausible pathways of adiposity and inflammation, whereas a 'Healthy' dietary pattern appears protective in these pathways. Longitudinal modelling into adulthood is indicated to confirm the complex associations of dietary patterns, adiposity, inflammation and mental health problems, including depressive symptoms. PMID- 29339319 TI - Treatment with the noradrenaline re-uptake inhibitor atomoxetine alone and in combination with the alpha2-adrenoceptor antagonist idazoxan attenuates loss of dopamine and associated motor deficits in the LPS inflammatory rat model of Parkinson's disease. AB - The impact of treatment with the noradrenaline (NA) re-uptake inhibitor atomoxetine and the alpha2-adrenoceptor (AR) antagonist idazoxan in an animal model of Parkinson's disease (PD) was assessed. Concurrent systemic treatment with atomoxetine and idazoxan, a combination which serves to enhance the extra synaptic availability of NA, exerts anti-inflammatory and neuroprotective effects following delivery of an inflammatory stimulus, the bacterial endotoxin, lipopolysaccharide (LPS) into the substantia nigra. Lesion-induced deficits in motor function (akinesia, forelimb-use asymmetry) and striatal dopamine (DA) loss were rescued to varying degrees depending on the treatment. Treatment with atomoxetine following LPS-induced lesion to the substantia nigra, yielded a robust anti-inflammatory effect, suppressing microglial activation and expression of the pro-inflammatory cytokine TNF-alpha whilst increasing the expression of neurotrophic factors. Furthermore atomoxetine treatment prevented loss of tyrosine hydroxylase (TH) positive nigral dopaminergic neurons and resulted in functional improvements in motor behaviours. Atomoxetine alone was sufficient to achieve most of the observed effects. In combination with idazoxan, an additional improvement in the impairment of contralateral limb use 7 days post lesion and a reduction in amphetamine-mediated rotational asymmetry 14 days post-lesion was observed, compared to atomoxetine or idazoxan treatments alone. The results indicate that increases in central NA tone has the propensity to regulate the neuroinflammatory phenotype in vivo and may act as an endogenous neuroprotective mechanism where inflammation contributes to the progression of DA loss. In accordance with this, the clinical use of agents such as NA re-uptake inhibitors and alpha2-AR antagonists may prove useful in enhancing the endogenous neuroimmunomodulatory potential of NA in conditions associated with brain inflammation. PMID- 29339320 TI - Primary Obstruction of the Foramen of Luschka: Anatomy, Histology, and Clinical Significance. AB - BACKGROUND: The foramen of Luschka is a natural aperture between the fourth ventricle and the subarachnoid space at the cerebellopontine angle. Membranous closure of this foramen is referred to as primary obstruction. Available information about this variant and its role in the development of the cysts of the posterior fossa is contradictory. METHODS: The macroscopic and histologic features of the obstructed foramina were examined in 61 formalin-fixed human brains (122 foramina). Three rhomboid lips of various sizes with lateral recess were used for comparison. Five postoperative cases of diverticulum of the foramen of Luschka were included in this study, with 1 case presented in detail to illustrate anatomic and histologic findings. RESULTS: Primary obstruction was present in 11 of 122 cases. In 1 case, an enlarged rigid pouch with a thick wall was found. The wall of the membrane in primary obstruction and the rhomboid lip were composed of an inner ependymal, a middle glial, and an outer leptomeningeal layer. CONCLUSIONS: The rhomboid lip is a remnant of the roof of the fourth ventricle. Imperforation of the foramen of Luschka results in a pouch in the cerebellopontine angle that contains choroid plexus (Bochdalek's flower basket) and communicates with the fourth ventricle. This pouch has the potential to grow to a diverticulum and cause clinical symptoms. Based on our clinical observations, detailed radiologic and surgical-anatomic criteria were proposed to support the differential diagnosis of a diverticulum of the foramen of Luschka. Treatment strategies were also suggested. PMID- 29339321 TI - Internal Thoracic Artery to Middle Cerebral Artery Bypass Surgery: Cadaveric Feasibsility Study. AB - BACKGROUND: A few options of extracranial donor vessels exist for use in intracranial vascular bypass procedures. To our knowledge, the use of an internal thoracic artery for cerebral revascularization has not been studied previously. Hence, this cadaveric feasibility study was performed. METHODS: The internal thoracic artery was dissected in 5 adult cadaveric specimens. The proximal diameter, distal diameter, and length of the vessel were measured and recorded. The artery was then transected distally at the seventh intercostal space and transposed cranially, through a pterional craniotomy opening to reach the middle cerebral artery at the skull base. RESULTS: The mean diameter of the internal thoracic artery at its proximal end was 3.5 mm and at its distal end was 2 mm. The average length of the vessel was 31 cm. There was no statistical difference between the measurements recorded from different sides or sexes. In each specimen, an internal thoracic artery was dissected, rotated superiorly, and advanced subcutaneously behind the ear to reach the middle cerebral artery at the skull base without difficulty and remained tensionless at the site of anastomosis. CONCLUSIONS: In this cadaveric study, we demonstrated the suitability of the internal thoracic artery in use as a donor vessel for a single site anastomosis in a high-flow cerebral bypass procedure. PMID- 29339322 TI - Endoscopic Endonasal Craniofacial Surgery for Recurrent Skull Base Meningiomas Involving the Pterygopalatine Fossa, the Infratemporal Fossa, the Orbit, and the Paranasal Sinus. AB - OBJECTIVE: Skull base meningiomas carry a nonnegligible risk of recurrence. In particular, those arising from the sphenoid wings or middle cranial fossa penetrate into extracranial regions, uncommonly showing massive expansion into the craniofacial regions on recurrence. The role of endoscopic endonasal surgery for those intractable lesions remains unclear. METHODS: We performed endoscopic endonasal craniofacial surgery for 8 recurrent meningiomas invading into the pterygopalatine fossa, infratemporal fossa, nasopharynx, paranasal sinus, or orbit, comprising 2 meningothelial and 1 fibrous meningiomas (World Health Organization [WHO] grade I), 3 atypical and 1 clear cell meningiomas (grade II), and 1 anaplastic meningioma (grade III). All were large (15-80 cm3; median, 45 cm3) and highly vascularized. RESULTS: All 8 tumors were sufficiently resected. Gross total resection of the craniofacial part of the lesions was achieved in 5 patients (62.5%). In 3 patients with WHO grade I meningiomas and 1 with grade II, tumors were successfully controlled as of the last follow-up. In 4 patients with WHO grade II or III meningiomas, craniofacial lesions were controlled, whereas original intracranial lesions were poorly controlled and became critical. CONCLUSIONS: We consider the endoscopic endonasal approach as an acceptable, less invasive alternative for recurrent craniofacial meningioma. Although all these cases were relatively large and highly vascularized, preoperative endovascular embolization of the feeding arteries contributes to significantly reducing vascularity of the tumors, and local control of the craniofacial lesions was successfully achieved in all cases. Endoscopic endonasal craniofacial surgery enabled sufficient mass reduction without disfiguring facial incisions. PMID- 29339323 TI - Mechanical Thrombectomy of Acute Middle Cerebral Artery Occlusion Using Trans Anterior Communicating Artery Approach. AB - BACKGROUND: A cross-circulation technique involves gaining access to a cerebral vessel through a patent anterior or posterior communicating artery. This technique may be used in patients with emergent large-vessel occlusions and an unfavorable direct route to the occlusion. While few previous reports have demonstrated a successful cross-circulation technique for treatment of emergent large-vessel occlusions, we present the first 2 cases of transanterior communicating artery stent retriever thrombectomy. CASE DESCRIPTION: Case #1: A 64-year-old female presented with acute right middle cerebral artery (MCA) occlusion. She demonstrated a "triple-tandem" brachiocephalic-internal carotid artery-middle cerebral artery occlusion, thus precluding direct access to the right MCA. Successful stent retriever mechanical thrombectomy was performed across the anterior communicating artery, using a left internal carotid artery approach. Case #2: A 70-year old female presented with acute occlusion of the left MCA and tandem occlusion of the cervical left internal carotid artery. Multiple attempts to catheterize the left common carotid artery were unsuccessful. She underwent successful stent retriever mechanical thrombectomy across a patent anterior communicating artery, using a right internal carotid artery approach. CONCLUSIONS: Timely recanalization of an occluded artery plays a critical role in the prognosis of patients with acute ischemic stroke. Successful stent retriever mechanical thrombectomy of an occluded MCA is possible using a transanterior communicating artery approach in patients without a direct access route to the occluded intracranial vessel. We review the pathophysiology of tandem lesions, access routes to intracranial occlusions, and the literature on cross-circulation techniques to treat emergent large-vessel occlusions. PMID- 29339324 TI - Oscillatory Synchronous Inhibition in the Basolateral Amygdala and its Primary Dependence on NR2A-containing NMDA Receptors. AB - Synchronous, rhythmic firing of GABAergic interneurons is a fundamental mechanism underlying the generation of brain oscillations, and evidence suggests that NMDA receptors (NMDARs) play a key role in oscillatory activity by regulating the activity of interneurons. Consistent with this, derangement of brain rhythms in certain neuropsychiatric disorders, notably schizophrenia and autism, is associated with NMDAR hypofunction and loss of inhibitory interneurons. In the basolateral amygdala (BLA)-dysfunction of which is involved in a host of neuropsychiatric diseases-, principal neurons display spontaneous, rhythmic "bursts" of inhibitory activity, which could potentially be involved in the orchestration of oscillations in the BLA network; here, we investigated the role of NMDARs in these inhibitory oscillations. Rhythmic bursts of spontaneous IPSCs (0.5 Hz average burst frequency) recorded from rat BLA principal cells were blocked or significantly suppressed by D-AP5, and could be driven by NMDAR activation alone. BLA interneurons generated spontaneous bursts of suprathreshold EPSCs at a similar frequency, which were also blocked or reduced by D-AP5. PEAQX (GluN2A-NMDAR antagonist; 0.4 MUM) or Ro-25-6981 (GluN2B-NMDAR antagonist; 5 MUM) suppressed the IPSC and EPSC bursts; suppression by PEAQX was significantly greater than that by Ro-25-6981. Immunohistochemical labeling revealed the presence of both GluN2A- and GluN2B-NMDARs on GABAergic BLA interneurons, while, functionally, GluN2A-NMDARs have the dominant role, as suggested by a greater reduction of NMDA-evoked currents by PEAQX versus Ro-25-6981. Entrainment of BLA principal neurons in an oscillatory generation of inhibitory activity depends primarily on activation of GluN2A-NMDARs, and interneuronal GluN2A-NMDARs may play a significant role. PMID- 29339326 TI - Surround Inhibition in the Primary Motor Cortex is Task-specifically Modulated in Non-professional Musicians but not in Healthy Controls During Real Piano Playing. AB - Research has indicated that at the onset of a finger movement, unwanted contractions of adjacent muscles are prevented by inhibiting the cortical areas representing these muscles. This so-called surround inhibition (SI) seems relevant for the performance of selective finger movements but may not be necessary for tasks involving functional coupling between different finger muscles. Therefore, the present study compared SI between isolated finger movement and complex selective finger movements while playing a three-finger sequence on the piano in nine non-professional musicians and 10 untrained control participants. Transcranial magnetic stimulation (TMS) was applied to the contralateral motor cortex to assess SI in the first dorsal interosseous (FDI), abductor pollicis brevis (APB) and abductor digiti minimi (ADM) during the movement preparation and the late phasic phases. The results reveal stronger SI during the preparation phase than during the phasic phase (30.6% vs. 10.7%; P < 0.05) in the isolated-finger condition in both musicians and controls. Results also show higher SI in musicians during the preparation phase of the isolated finger condition compared to the preparation phase of the three-finger sequence (40% vs. 15%; P < 0.05). However, the control group did not show this task specific modulation of SI (isolated: 25% vs. sequence: 25%; P > 0.05). Thus, musicians were able to modulate SI between conditions whereas control participants revealed constant levels of SI. Therefore, it may be assumed that long-term training as observed in skilled musicians is accompanied by task specific effects on SI modulation potentially relating to the ability to perform selective and complex finger movements. PMID- 29339325 TI - Induction of Anti-agrin Antibodies Causes Myasthenia Gravis in Mice. AB - Myasthenia gravis (MG) is an autoimmune disorder of the neuromuscular junction (NMJ). Most cases of MG are caused by autoantibodies against the acetylcholine receptor (AChR), muscle-specific kinase (MuSK) and low-density lipoprotein receptor-related protein 4 (LRP4). Recent studies have identified anti-agrin antibodies in MG patients lacking these three antibodies (i.e., triple negative MG). Agrin is a basal lamina protein that has two isoforms. Neural agrin (N agrin) binds to LRP4 to activate MuSK to induce AChR clusters and is thus critical for NMJ formation. We demonstrate that mice immunized with N-agrin showed MG-associated symptoms including muscle weakness, fragmented and distorted NMJs. These effects were not observed in mice injected with muscle agrin (M agrin), an isoform that is inactive in inducing AChR clusters. Treatment with anti-N-agrin, but not anti-M-agrin, antibodies reduced agrin-induced AChR clusters in muscle cells. Together, these observations suggest that agrin antibodies may be play a role in MG pathogenesis. PMID- 29339327 TI - The chaperonin CCT promotes the formation of fibrillar aggregates of gamma tubulin. AB - The type II chaperonin CCT is involved in the prevention of the pathogenesis of numerous human misfolding disorders, as it sequesters misfolded proteins, blocks their aggregation and helps them to achieve their native state. In addition, it has been reported that CCT can prevent the toxicity of non-client amyloidogenic proteins by the induction of non-toxic aggregates, leading to new insight in chaperonin function as an aggregate remodeling factor. Here we add experimental evidence to this alternative mechanism by which CCT actively promotes the formation of conformationally different aggregates of gamma-tubulin, a non amyloidogenic CCT client protein, which are mediated by specific CCT-gamma tubulin interactions. The in vitro-induced aggregates were in some cases long fiber polymers, which compete with the amorphous aggregates. Direct injection of unfolded purified gamma-tubulin into single-cell zebra fish embryos allowed us to relate this in vitro activity with the in vivo formation of intracellular aggregates. Injection of a CCT-binding deficient gamma-tubulin mutant dramatically diminished the size of the intracellular aggregates, increasing the toxicity of the misfolded protein. These results point to CCT having a role in the remodeling of aggregates, constituting one of its many functions in cellular proteostasis. PMID- 29339328 TI - Micro-morphological adaptations of the wing nodus to flight behaviour in four dragonfly species from the family Libellulidae (Odonata: Anisoptera). AB - Adult dragonflies can be divided into two major groups, perchers and fliers, exhibiting notably different flight behaviour. Previous studies have yielded conflicting results regarding the link between the wing macro-morphology and flight style in these two groups. In this study, we present the first systematic investigation of the micro-morphological differences of wings of percher and flier dragonflies in four closely related species from the family Libellulidae. Our results suggest that the shape and material composition of wing microstructural components and, in particular, the nodus are adapted to facilitate the specific wing functioning in fliers and perchers. The findings further indicate a decreasing trend in the area proportion of the soft resilin dominated cuticle in the nodus in the series of species from typical perchers to typical fliers. Such a reduction in the resilin proportion in the nodus of fliers is associated with an increase in the wing aspect ratio. The knot-shaped protrusion at the nodus of perchers, which becomes notably smaller in that of strong fliers, is likely to act as a mechanical stopper, avoiding large wing displacements. This study aims to develop a novel framework for future research on the relationship between wing morphology and flight behaviour in dragonflies. PMID- 29339329 TI - Pituitary size alteration and adverse effects of radiation therapy performed in 9 dogs with pituitary-dependent hypercortisolism. AB - The purpose of this study was to determine the therapeutic and/or adverse effects of radiation therapy (RT) against pituitary tumors in dogs with pituitary dependent hypercortisolism, as monitored by frequent post-RT detailed MRI examinations, clinical signs, and changes in hormone concentrations. Nine dogs with an adrenocorticotropic hormone (ACTH)-secreting pituitary mass diagnosed by magnetic resonance imaging (MRI) underwent RT for 4weeks (total of 48Gy in 4-Gy fractions). Pituitary height/brain area (P/B) value, clinical signs, basal plasma ACTH concentrations, serum cortisol concentrations (pre- and post-ACTH stimulation test) and adverse effects of RT were evaluated before and post-RT. The P/B value was significantly lower in all nine dogs post-RT. One dog lacking any neurological signs demonstrated no change in clinical signs pre and post-RT. Out of 8 dogs which exhibited neurological signs pre-RT, half of them demonstrated complete resolution of their signs, whereas the other half showed transient resolution. In all animals with recurrence of neurological signs, pituitary tumor regrowth was not observed; however, MRI revealed moderate to severe pituitary hemorrhage. Late adverse effect (bilateral otitis media) was observed in three of nine dogs post-RT. RT did not induce any significant changes in the dogs' basal plasma ACTH concentration and pre- and post-ACTH serum cortisol concentrations. In conclusion, RT is effective to reduce pituitary size and the mass effect, but does not appear to affect blood hormone concentrations, necessitating additional medical treatment against hypercortisolism. Periodic MRI imaging post-RT enables early detection of adverse effects of RT. PMID- 29339330 TI - Photocatalytic degradation of aniline using an autonomous rotating drum reactor with both solar and UV-C artificial radiation. AB - The aim of this work was to evaluate the performance of a novel self-autonomous reactor technology (capable of working with solar irradiation and artificial UV light) for water treatment using aniline as model compound. This new reactor design overcomes the problems of the external mass transfer effect and the accessibility to photons occurring in traditional reaction systems. The UV-light source is located inside the rotating quartz drums (where TiO2 is immobilized), allowing light to easily reach the water and the TiO2 surface. Several processes (UV, H2O2, Solar, TiO2, Solar/TiO2, Solar/TiO2/H2O2 and UV/Solar/H2O2/TiO2) were tested. The synergy between Solar/H2O2 and Solar/TiO2 processes was quantified to be 40.3% using the pseudo-first-order degradation rate. The apparent photonic efficiency, zeta, was also determined for evaluating light utilization. For the Solar/TiO2/H2O2 process, the efficiency was found to be practically constant (0.638-0.681%) when the film thickness is in the range of 1.67-3.87 MUm. However, the efficiency increases up to 2.67% when artificial UV light was used in combination, confirming the efficient design of this installation. Thus, if needed, lamps can be switched on during cloudy days to improve the degradation rate of aniline and its mineralization. Under the optimal conditions selected for the Solar/TiO2/H2O2 process ([H2O2] = 250 mg/L; pH = 4, [TiO2] = 0.65-1.25 mg/cm2), 89.6% of aniline is degraded in 120 min. If the lamps are switched on, aniline is completely degraded in 10 min, reaching 85% of mineralization in 120 min. TiO2 was re-used during 5 reaction cycles without apparent loss in activity (<2%). Quantification of hydroxyl radicals and dissolved oxygen allows a chemical based explanation of the process. Finally, the UV/Solar/TiO2/H2O2 process was found to have lower operation costs than other systems described in literature (0.67 ?/m3). PMID- 29339331 TI - The catalytic destruction of antibiotic tetracycline by sulfur-doped manganese oxide (S-MgO) nanoparticles. AB - The present study evaluates the efficacy of S-doped MgO (S-MgO) as compared with the plain MgO as a catalyst for destructive removal of tetracycline (TTC) in aqueous solutions. The S-MgO had around 6% S in its structure. Doping MgO with S caused increase in surface oxygen vacancy defects. Adding S-MgO (12 g/L) to a TTC aqueous solution (50 mg/L) caused removal of around 99% TTC at the neutral pH (ca. 5.1) and a short reaction time of 10 min. In comparison, plain MgO could remove only around 15% of TTC under similar experimental conditions. Diffusing O2 into the TTC solution under the reaction with S-MgO resulted in a considerable improvement of TTC removal as compared to diffusing N2. Complete removal of TTC and 86.4% removal of its TOC could be obtained using 2 g/L S-MgO nanoparticles. The removal of TTC increased with the increase in solution temperature. The presence of nitrate, sulfate and chloride did not considerably affect the removal of TTC using S-MgO while TTC removal significantly decreased at the presence of bicarbonate and phosphate. The S-MgO was a stable and reusable catalyst exhibiting much higher catalytic activity than plain MgO for the TTC destruction. Accordingly, S-MgO is an emerging and efficient catalyst for catalytic decomposition and mineralization of such pharmaceutical compounds as TTC under atmospheric temperature and pressure. PMID- 29339332 TI - Human perturbation increases the fluxes of dissolved molybdenum from land to ocean - The case of the Jiulong River in China. AB - Rivers contribute a substantial amount of trace metals including molybdenum (Mo) into the oceans. The driving forces controlling the riverine fluxes of dissolved metals still remain not fully understood. Our study then investigated the spatial variations of dissolved metals including molybdenum in a typically human perturbed river, the Jiulong River (JR), China. The aim of the study is to elucidate the relevance of anthropogenic perturbation on the fluxes of dissolved metals such as molybdenum from land to ocean. Our study shows a large spatial variability of dissolved Mo across tributary to main stream of the JR. Particularly, dissolved Mo was generally low (average: 5 +/- 1 nM) in the "pristine" JR headwaters, and elevated (19 +/- 6 nM) along the lower river continuum. Sporadically high levels of dissolved Mo occurred in the upper North River (77 +/- 19 nM), as a result of mining activities locally. Significant correlations of dissolved Mo with total dissolved solids (TDS) and dissolved strontium (Sr) were observed in the whole JR (Mo = 1.4* TDS -1.7, R2 = 0.86, p < .01; Mo = 1.2*Sr - 2.2, R2 = 0.70, p < .01, logarithmic scales). This indicates that dissolved Mo is mobilized mainly along with other major ions such as Sr during similar mineral dissolution processes. From the "pristine" headwaters to the mouth of the JR, riverine Mo fluxes at the mouth of the JR has elevated by at least 3 times due to human perturbation. Compiled historic data regarding metal fluxes from world rivers further confirmed that small and medium rivers are relatively more sensitive to human perturbation. PMID- 29339333 TI - Coral reefs for coastal protection: A new methodological approach and engineering case study in Grenada. AB - Coastal communities in tropical environments are at increasing risk from both environmental degradation and climate change and require urgent local adaptation action. Evidences show coral reefs play a critical role in wave attenuation but relatively little direct connection has been drawn between these effects and impacts on shorelines. Reefs are rarely assessed for their coastal protection service and thus not managed for their infrastructure benefits, while widespread damage and degradation continues. This paper presents a systematic approach to assess the protective role of coral reefs and to examine solutions based on the reef's influence on wave propagation patterns. Portions of the shoreline of Grenville Bay, Grenada, have seen acute shoreline erosion and coastal flooding. This paper (i) analyzes the historical changes in the shoreline and the local marine, (ii) assess the role of coral reefs in shoreline positioning through a shoreline equilibrium model first applied to coral reef environments, and (iii) design and begin implementation of a reef-based solution to reduce erosion and flooding. Coastline changes in the bay over the past 6 decades are analyzed from bathymetry and benthic surveys, historical imagery, historical wave and sea level data and modeling of wave dynamics. The analysis shows that, at present, the healthy and well-developed coral reefs system in the southern bay keeps the shoreline in equilibrium and stable, whereas reef degradation in the northern bay is linked with severe coastal erosion. A comparison of wave energy modeling for past bathymetry indicates that degradation of the coral reefs better explains erosion than changes in climate and historical sea level rise. Using this knowledge on how reefs affect the hydrodynamics, a reef restoration solution is designed and studied to ameliorate the coastal erosion and flooding. A characteristic design provides a modular design that can meet specific engineering, ecological and implementation criteria. Four pilot units were implemented in 2015 and are currently being field-tested. This paper presents one of the few existing examples available to date of a reef restoration project designed and engineered to deliver risk reduction benefits. The case study shows how engineering and ecology can work together in community-based adaptation. Our findings are particularly important for Small Island States on the front lines of climate change, who have the most to gain from protecting and managing coral reefs as coastal infrastructure. PMID- 29339334 TI - Eco-compensation in China: Theory, practices and suggestions for the future. AB - Eco-compensation is the most important form of compensatory conservation in China. However, this compensatory mechanism is criticized for vague definition and massive government participation. For better understanding of eco compensation in China, this paper compares theories and practices of compensatory mechanisms in China and abroad. The analysis of theoretical backgrounds shows that eco-compensation in China is a combination of 'ecological compensation' and 'payments for ecosystem services'. Ten compensatory projects in China and abroad are assessed to reveal characteristics and problems of eco-compensation in China. The results show that compensatory projects in China lagged behind mature foreign compensatory projects in clarity of property rights, responsibility fulfillment, executive efficiency, effectiveness, sustainability and equality. The massive participation of the government is the major reason for the poor performance of compensatory projects in China. However, government participation is necessary at the present stage in China for the income gap and beneficiaries' low willingness to pay. For the improvement of eco-compensation in China, suggestions are given on the choice of non-market valuation methods, the creation of property rights and the establishment of market mechanisms. PMID- 29339335 TI - Potential impacts of offshore oil spills on polar bears in the Chukchi Sea. AB - Sea ice decline is anticipated to increase human access to the Arctic Ocean allowing for offshore oil and gas development in once inaccessible areas. Given the potential negative consequences of an oil spill on marine wildlife populations in the Arctic, it is important to understand the magnitude of impact a large spill could have on wildlife to inform response planning efforts. In this study we simulated oil spills that released 25,000 barrels of oil for 30 days in autumn originating from two sites in the Chukchi Sea (one in Russia and one in the U.S.) and tracked the distribution of oil for 76 days. We then determined the potential impact such a spill might have on polar bears (Ursus maritimus) and their habitat by overlapping spills with maps of polar bear habitat and movement trajectories. Only a small proportion (1-10%) of high-value polar bear sea ice habitat was directly affected by oil sufficient to impact bears. However, 27-38% of polar bears in the region were potentially exposed to oil. Oil consistently had the highest probability of reaching Wrangel and Herald islands, important areas of denning and summer terrestrial habitat. Oil did not reach polar bears until approximately 3 weeks after the spills. Our study found the potential for significant impacts to polar bears under a worst case discharge scenario, but suggests that there is a window of time where effective containment efforts could minimize exposure to bears. Our study provides a framework for wildlife managers and planners to assess the level of response that would be required to treat exposed wildlife and where spill response equipment might be best stationed. While the size of spill we simulated has a low probability of occurring, it provides an upper limit for planners to consider when crafting response plans. PMID- 29339336 TI - Organophosphate and brominated flame retardants in Australian indoor environments: Levels, sources, and preliminary assessment of human exposure. AB - Concentrations of nine organophosphate flame retardants (OPFRs) and eight polybrominated diphenyl ethers (PBDEs) were measured in samples of indoor dust (n = 85) and air (n = 45) from Australian houses, offices, hotels, and transportation (buses, trains, and aircraft). All target compounds were detected in indoor dust and air samples. Median ?9OPFRs concentrations were 40 MUg/g in dust and 44 ng/m3 in indoor air, while median ?8PBDEs concentrations were 2.1 MUg/g and 0.049 ng/m3. Concentrations of FRs were higher in rooms that contained carpet, air conditioners, and various electronic items. Estimated daily intakes in adults are 14000 pg/kg body weight/day and 330 pg/kg body weight/day for ?9OPFRs and ?8PBDEs, respectively. Our results suggest that for the volatile FRs such as tris(2-chloroethyl) phosphate (TCEP) and TCIPP, inhalation is expected to be the more important intake pathway compared to dust ingestion and dermal contact. PMID- 29339337 TI - Adsorption of perfluoroalkyl substances on microplastics under environmental conditions. AB - Plastic debris has become an environmental problem during recent years. Among the plastic debris, microplastics (<5 mm; MPLs) imply an extra problem due to their capacity to enter into the fauna through ingestion. In this work, we study the capacity of three MPLs, that include high-density polyethylene (HDPE), polystyrene (PS) and polystyrene carboxylate (PS-COOH), to sorb 18 perfluoroalkyl substances (PFASs; including carboxylic acids, sulphonates and one sulphonamide) from the surrounding waters (freshwater and seawater). Conclusions drawn from the results are that perfluoro sulphonates and sulphonamides have more tendency to be sorbed onto MPLs. In addition, PS and PS-COOH have more affinity for PFASs than HDPE. Finally, the increment of conductivity and pH of the water decreases the exposure time that is necessary to reach equilibrium. However, the presence of salts decreases the tendency of PFASs to be sorbed onto plastic surfaces. These results highlight the problem associated with the presence of MPLs in inland and marine waters since toxic compounds can be sorbed onto surrounding plastics that could be ingested by aquatic fauna. PMID- 29339338 TI - The phytotoxicities of decabromodiphenyl ether (BDE-209) to different rice cultivars (Oryza sativa L.). AB - Decabromodiphenyl ether (BDE-209), as a major component of brominated flame retardants, has been detected in the agricultural soil in considerable amount. Given that BDE-209 is toxic, ubiquitous and persistent, BDE-209 might induce toxic effects on rice cultivars planted in contaminated soil. A comparative study was conducted on phytotoxicities and GC-MS based antioxidant-related metabolite levels to investigate the differences of phytotoxicities of BDE-209 to rice cultivars in Yangtze River Delta of China. Rice seedlings were treated with BDE 209 at 0, 10, 50, 100 and 500 MUg/L in a hydroponic setup. Results showed that BDE-209-induced phytotoxicites were cultivar-dependent and that the antioxidant defense systems in the cultivars were disturbed differently. Among the three selected cultivars (Jiayou 5, Lianjing 7 and Yongyou 9), Jiayou 5 and Lianjing 7 displayed lower toxic effects than Yongyou 9 in terms of the growth inhibition, lipid peroxidation and DNA damage. The increases of antioxidant enzymes were significantly higher in Jiayou 5 and Lianjing 7 than those in Yongyou 9. Multivariate analysis of antioxidant-related metabolites in the three cultivars indicated that l-tryptophan and l-valine were the most important ones among 10 metabolites responsible for the separation of cultivars. The up-regulation of l tryptophan and l-valine were likely plant strategies to increase their tolerance. The current results provided an insight into the development of rice cultivars with higher BDE-209 tolerance. PMID- 29339339 TI - Proteomics and genetic analyses reveal the effects of arsenite oxidation on metabolic pathways and the roles of AioR in Agrobacterium tumefaciens GW4. AB - A heterotrophic arsenite [As(III)]-oxidizing bacterium Agrobacterium tumefaciens GW4 isolated from As(III)-rich groundwater sediment showed high As(III) resistance and could oxidize As(III) to As(V). The As(III) oxidation could generate energy and enhance growth, and AioR was the regulator for As(III) oxidase. To determine the related metabolic pathways mediated by As(III) oxidation and whether AioR regulated other cellular responses to As(III), isobaric tags for relative and absolute quantitation (iTRAQ) was performed in four treatments, GW4 (+AsIII)/GW4 (-AsIII), GW4-DeltaaioR (+AsIII)/GW4-DeltaaioR (-AsIII), GW4-DeltaaioR (-AsIII)/GW4 (-AsIII) and GW4-DeltaaioR (+AsIII)/GW4 (+AsIII). A total of 41, 71, 82 and 168 differentially expressed proteins were identified, respectively. Using electrophoretic mobility shift assay (EMSA) and qRT-PCR, 12 genes/operons were found to interact with AioR. These results indicate that As(III) oxidation alters several cellular processes related to arsenite, such as As resistance (ars operon), phosphate (Pi) metabolism (pst/pho system), TCA cycle, cell wall/membrane, amino acid metabolism and motility/chemotaxis. In the wild type with As(III), TCA cycle flow is perturbed, and As(III) oxidation and fermentation are the main energy resources. However, when strain GW4-DeltaaioR lost the ability of As(III) oxidation, the TCA cycle is the main way to generate energy. A regulatory cellular network controlled by AioR is constructed and shows that AioR is the main regulator for As(III) oxidation, besides, several other functions related to As(III) are regulated by AioR in parallel. PMID- 29339340 TI - Bioavailability and soil-to-crop transfer of heavy metals in farmland soils: A case study in the Pearl River Delta, South China. AB - Soil-bound heavy metals are of great concern for human health due to the potential exposure via food chain transfer. In the present study, the occurrence, the bioavailability and the soil-to-crop transfer of heavy metals in farmland soils were investigated based on data from two agricultural areas, i.e. Sihui and Shunde in South China. Six heavy metals (As, Cu, Hg, Mn, Ni and Pb) were quantified in the farmland soils. The mean single pollution level indices (PI) were all lower than 1 except for Hg in soils from Shunde (PI = 1.51 +/- 0.46), suggesting the farmland soils were within clean and slightly polluted by heavy metals. As, Cu, Ni and Pb were found to be mostly present in the non-bioavailable form. The majority of Hg was considered potentially bioavailable, and Mn was found to be largely bioavailable. Soil pH was an important factor influencing bioavailability of soil-bound heavy metals. The concentrations of heavy metals in vegetables from Sihui and Shunde were within the food hygiene standards, while the rice grain from Sihui was polluted by Pb (PI = 10.3 +/- 23.4). Total soil concentrations of heavy metals were not correlated to their corresponding crop concentrations, instead, significant correlations were observed for bioavailable concentrations in soil. The results supported the notion that the bioavailability of the investigated heavy metals in the soil was largely responsible for their crop uptake. The soil-to-crop transfer factors based on bioavailable concentrations suggested that Cu, As and Hg in soils of the study area had greater tendency to be accumulated in the vegetables than other heavy metals, calling for further human health assessment by consuming the contaminated crops. PMID- 29339341 TI - Health status alterations in Ruditapes philippinarum after continuous secondary effluent exposure before and after additional tertiary treatment application. AB - A mobile pilot plant was set up in a wastewater treatment plant (WWTP) in southwest Spain to address potential adverse effects of effluents as a whole contaminant, which are discharging into marine environments. Ruditapes philippinarum specimens were exposed to different effluent concentrations (50%, 25%, 12.5%, 6.25%, and 3.15%) during seven days. After effluent exposure, lysosomal membrane stability alterations (LMS), changes in the energy status storage (total lipids content (TLP) and in the mitochondrial electron transport (MET), inhibition of inflammatory mechanisms (cyclooxygenase activity (COX)), and neurotoxic effects (acetylcholinesterase (AChE) were determined in exposed organisms. Furthermore, potential toxic reduction in the effluent was analysed by the application of an additional microalgae tertiary treatment called photobiotreatment (PhtBio). Results after PhtBio confirmed the toxic effect reduction in exposed organisms. Neuroendocrine effects, alterations in energy budget and in lipid storage revealed alterations in clam's health status causing stress conditions after effluent exposure. PMID- 29339342 TI - Transgenerational impairments of reproduction and development of the marine invertebrate Crepidula onyx resulted from long-term dietary exposure of 2,2',4,4' tetrabromodiphenyl ether (BDE-47). AB - Polybrominated diphenyl ethers have become ubiquitous in the environment and elevated concentrations have often been found in marine organisms. Using the gastropod Crepidula onyx as a study model, this multigenerational study sets out to test the hypotheses that 1) parental dietary exposure to environmentally realistic levels of 2,2',4,4'-tetrabrominated diphenyl ether (BDE-47) would lead to transgenerational impairments on fitness traits of marine invertebrates, and 2) the organisms might develop adaptation/acclimation after exposure for one or more generations. F0 generation of C. onyx was fed with the dinoflagellate Isochrysis galbana encapsulated with two concentrations of BDE-47 (1.78 and 16.0 ng million cells-1, respectively), and half of the F1 offspring from the higher concentration treatment was returned to control condition (transgenerational group), while the other half received BDE-47 treatment continuously (continuous treatment group). Bioaccumulation and maternal transfer of BDE-47 were evident in all life stages of the F0 generation and in F1 eggs, respectively. Exposure to BDE-47 reduced fecundity, delayed sexual maturity, and impeded embryonic development in F0 to F2. In particular, developmental toxicity of F2 embryos was apparent in the transgenerational group, but not in the continuous treatment group, even when BDE-47 was not detected in the F2 embryos nor in their mothers and they have never been exposed to the chemical. This study also suggested that the offspring might have developed adaptation/acclimation to the exposure of BDE 47 within two generations of exposure, and that the physiological alterations associated with acclimation/adaptation might have hindered the normal larval development under a stress free condition. These findings highlighted the need for long-term multigenerational studies in the ecological risk assessment of chemicals alike. PMID- 29339343 TI - An integrated evaluation of some faecal indicator bacteria (FIB) and chemical markers as potential tools for monitoring sewage contamination in subtropical estuaries. AB - Sewage input and the relationship between chemical markers (linear alkylbenzenes and coprostanol) and fecal indicator bacteria (FIB, Escherichia coli and enterococci), were evaluated in order to establish thresholds values for chemical markers in suspended particulate matter (SPM) as indicators of sewage contamination in two subtropical estuaries in South Atlantic Brazil. Both chemical markers presented no linear relationship with FIB due to high spatial microbiological variability, however, microbiological water quality was related to coprostanol values when analyzed by logistic regression, indicating that linear models may not be the best representation of the relationship between both classes of indicators. Logistic regression was performed with all data and separately for two sampling seasons, using 800 and 100 MPN 100 mL-1 of E. coli and enterococci, respectively, as the microbiological limits of sewage contamination. Threshold values of coprostanol varied depending on the FIB and season, ranging between 1.00 and 2.23 MUg g-1 SPM. The range of threshold values of coprostanol for SPM are relatively higher and more variable than those suggested in literature for sediments (0.10-0.50 MUg g-1), probably due to higher concentration of coprostanol in SPM than in sediment. Temperature may affect the relationship between microbiological indicators and coprostanol, since the threshold value of coprostanol found here was similar to tropical areas, but lower than those found during winter in temperate areas, reinforcing the idea that threshold values should be calibrated for different climatic conditions. PMID- 29339344 TI - Analysis and evaluation of (neuro)peptides in honey bees exposed to pesticides in field conditions. AB - During the last years, declines in honey bee colonies are being registered worldwide. Cholinergic pesticides and their extensive use have been correlated to the decline of pollinators and there is evidence that pesticides act as neuroendocrine disruptors affecting the metabolism of neuropeptides. However, there is a big absence of studies with quantitative results correlating the effect of pesticide exposure with changes on neuropeptides insects, and most of them are conducted under laboratory conditions, typically with individual active ingredients. In this study, we present an analytical workflow to evaluate pesticide effects on honey bees through the analysis of (neuro)peptides. The workflow consists of a rapid extraction method and liquid chromatography with triple quadrupole for preselected neuropeptides. For non-target analysis, high resolution mass spectrometry, multivariate analysis and automatic identification of discriminated peptides using a specific software and protein sequence databases. The analytical method was applied to the analysis of target and non target (neuro)peptides in honey bees with low and high content of a wide range of pesticides to which have been exposed in field conditions. Our findings show that the identification frequency of target neuropeptides decreases significantly in honey bees with high concentration of pesticides (pesticide concentrations >= 500 MUg kg-1) in comparison with the honey bees with low content of pesticides (pesticide concentrations <= 20 MUg kg-1). Moreover, the principal component analysis in non-target search shows a clear distinction between peptide concentration in honey bees with high level of pesticides and honey bees with low level. The use of high resolution mass spectrometry has allowed the identification of 25 non-redundant peptides responsible for discrimination between the two groups, derived from 18 precursor proteins. PMID- 29339345 TI - Optimizing critical source control of five priority-regulatory trace elements from industrial wastewater in China: Implications for health management. AB - Anthropogenic emissions of toxic trace elements (TEs) have caused worldwide concern due to their adverse effects on human health and ecosystems. Based on a stochastic simulation of factors' probability distribution, we established a bottom-up model to estimate the amounts of five priority-regulatory TEs released to aquatic environments from industrial processes in China. Total TE emissions in China in 2010 were estimated at approximately 2.27 t of Hg, 310.09 t of As, 318.17 t of Pb, 79.72 t of Cd, and 1040.32 t of Cr. Raw chemicals, smelting, and mining were the leading sources of TE emissions. There are apparent regional differences in TE pollution. TE emissions are much higher in eastern and central China than in the western provinces and are higher in the south than in the north. This spatial distribution was characterized in detail by allocating the emissions to 10 km * 10 km grid cells. Furthermore, the risk control for the overall emission grid was optimized according to each cell's emission and risk rank. The results show that to control 80% of TE emissions from major sources, the number of top-priority control cells would be between 200 and 400, and less than 10% of the total population would be positively affected. Based on TE risk rankings, decreasing the population weighted risk would increase the number of controlled cells by a factor of 0.3-0.5, but the affected population would increase by a factor of 0.8-1.5. In this case, the adverse effects on people's health would be reduced significantly. Finally, an optimized strategy to control TE emissions is proposed in terms of a cost-benefit trade-off. The estimates in this paper can be used to help establish a regional TE inventory and cyclic simulation, and it can also play supporting roles in minimizing TE health risks and maximizing resilience. PMID- 29339346 TI - User-Centered Design of Learn to Quit, a Smoking Cessation Smartphone App for People With Serious Mental Illness. AB - BACKGROUND: Smoking rates in the United States have been reduced in the past decades to 15% of the general population. However, up to 88% of people with psychiatric symptoms still smoke, leading to high rates of disease and mortality. Therefore, there is a great need to develop smoking cessation interventions that have adequate levels of usability and can reach this population. OBJECTIVE: The objective of this study was to report the rationale, ideation, design, user research, and final specifications of a novel smoking cessation app for people with serious mental illness (SMI) that will be tested in a feasibility trial. METHODS: We used a variety of user-centered design methods and materials to develop the tailored smoking cessation app. This included expert panel guidance, a set of design principles and theory-based smoking cessation content, development of personas and paper prototyping, usability testing of the app prototype, establishment of app's core vision and design specification, and collaboration with a software development company. RESULTS: We developed Learn to Quit, a smoking cessation app designed and tailored to individuals with SMI that incorporates the following: (1) evidence-based smoking cessation content from Acceptance and Commitment Therapy and US Clinical Practice Guidelines for smoking cessation aimed at providing skills for quitting while addressing mental health symptoms, (2) a set of behavioral principles to increase retention and comprehension of smoking cessation content, (3) a gamification component to encourage and sustain app engagement during a 14-day period, (4) an app structure and layout designed to minimize usability errors in people with SMI, and (5) a set of stories and visuals that communicate smoking cessation concepts and skills in simple terms. CONCLUSIONS: Despite its increasing importance, the design and development of mHealth technology is typically underreported, hampering scientific innovation. This report describes the systematic development of the first smoking cessation app tailored to people with SMI, a population with very high rates of nicotine addiction, and offers new design strategies to engage this population. mHealth developers in smoking cessation and related fields could benefit from a design strategy that capitalizes on the role visual engagement, storytelling, and the systematic application of behavior analytic principles to deliver evidence-based content. PMID- 29339347 TI - Hospital-Owned Apps in Taiwan: Nationwide Survey. AB - BACKGROUND: Over the last decade, the use of mobile phone apps in the health care industry has grown rapidly. Owing to the high penetration rate of Internet use in Taiwan, hospitals are eager to provide their own apps to improve the accessibility of medical care for patients. OBJECTIVE: The aims of this study were to provide an overview of the currently available hospital-owned apps in Taiwan and to conduct a cross-hospital comparison of app features. METHODS: In May 2017, the availability of apps from all 414 hospitals in Taiwan was surveyed from the hospital home pages and the Google Play app store. The features of the downloaded apps were then examined in detail and, for each app, the release date of the last update, download frequency, and rating score were obtained from Google Play. RESULTS: Among all the 414 hospitals in Taiwan, 150 (36.2%) owned Android apps that had been made available for public use, including 95% (18/19) of the academic medical centers, 77% (63/82) of the regional hospitals, and 22.0% (69/313) of the local community hospitals. Among the 13 different functionalities made available by the various hospital-owned apps, the most common were the doctor search (100%, 150/150), real-time queue monitoring (100%, 150/150), and online appointment scheduling (94.7%, 142/150) functionalities. The majority of apps (57.3%, 86/150) had a rating greater than 4 out of 5, 49.3% (74/150) had been updated at some point in 2017, and 36.0% (54/150) had been downloaded 10,000 to 50,000 times. CONCLUSIONS: More than one-third of the hospitals owned apps intended to increase patient access to health care. The most common app features might reflect the health care situation in Taiwan, where the overcrowded outpatient departments of hospitals operate in an open-access mode without any strict referral system. Further research should focus on the effectiveness and safety of these apps. PMID- 29339349 TI - Jeremy Hunt's new department: major overhaul or window dressing? PMID- 29339348 TI - Evaluation Criteria of Noninvasive Telemonitoring for Patients With Heart Failure: Systematic Review. AB - BACKGROUND: Telemonitoring can improve heart failure (HF) management, but there is no standardized evaluation framework to comprehensively evaluate its impact. OBJECTIVE: Our objectives were to list the criteria used in published evaluations of noninvasive HF telemonitoring projects, describe how they are used in the evaluation studies, and organize them into a consistent scheme. METHODS: Articles published from January 1990 to August 2015 were obtained through MEDLINE, Web of Science, and EMBASE. Articles were eligible if they were original reports of a noninvasive HF telemonitoring evaluation study in the English language. Studies of implantable telemonitoring devices were excluded. Each selected article was screened to extract the description of the telemonitoring project and the evaluation process and criteria. A qualitative synthesis was performed. RESULTS: We identified and reviewed 128 articles leading to 52 evaluation criteria classified into 6 dimensions: clinical, economic, user perspective, educational, organizational, and technical. The clinical and economic impacts were evaluated in more than 70% of studies, whereas the educational, organizational, and technical impacts were studied in fewer than 15%. User perspective was the most frequently covered dimension in the development phase of telemonitoring projects, whereas clinical and economic impacts were the focus of later phases. CONCLUSIONS: Telemonitoring evaluation frameworks should cover all 6 dimensions appropriately distributed along the telemonitoring project lifecycle. Our next goal is to build such a comprehensive evaluation framework for telemonitoring and test it on an ongoing noninvasive HF telemonitoring project. PMID- 29339350 TI - Correction: The constant threat from a non-native predator increases tail muscle and fast-start swimming performance in Xenopus tadpoles. PMID- 29339351 TI - High-Target Versus Low-Target Blood Pressure Management During Cardiopulmonary Bypass to Prevent Cerebral Injury in Cardiac Surgery Patients: A Randomized Controlled Trial. AB - BACKGROUND: Cerebral injury is an important complication after cardiac surgery with the use of cardiopulmonary bypass. The rate of overt stroke after cardiac surgery is 1% to 2%, whereas silent strokes, detected by diffusion-weighted magnetic resonance imaging, are found in up to 50% of patients. It is unclear whether a higher versus a lower blood pressure during cardiopulmonary bypass reduces cerebral infarction in these patients. METHODS: In a patient- and assessor-blinded randomized trial, we allocated patients to a higher (70-80 mm Hg) or lower (40-50 mm Hg) target for mean arterial pressure by the titration of norepinephrine during cardiopulmonary bypass. Pump flow was fixed at 2.4 L.min 1.m-2. The primary outcome was the total volume of new ischemic cerebral lesions (summed in millimeters cubed), expressed as the difference between diffusion weighted imaging conducted preoperatively and again postoperatively between days 3 and 6. Secondary outcomes included diffusion-weighted imaging-evaluated total number of new ischemic lesions. RESULTS: Among the 197 enrolled patients, mean (SD) age was 65.0 (10.7) years in the low-target group (n=99) and 69.4 (8.9) years in the high-target group (n=98). Procedural risk scores were comparable between groups. Overall, diffusion-weighted imaging revealed new cerebral lesions in 52.8% of patients in the low-target group versus 55.7% in the high-target group (P=0.76). The primary outcome of volume of new cerebral lesions was comparable between groups, 25 mm3 (interquartile range, 0-118 mm3; range, 0-25 261 mm3) in the low-target group versus 29 mm3 (interquartile range, 0-143 mm3; range, 0-22 116 mm3) in the high-target group (median difference estimate, 0; 95% confidence interval, -25 to 0.028; P=0.99), as was the secondary outcome of number of new lesions (1 [interquartile range, 0-2; range, 0-24] versus 1 [interquartile range, 0-2; range, 0-29] respectively; median difference estimate, 0; 95% confidence interval, 0-0; P=0.71). No significant difference was observed in frequency of severe adverse events. CONCLUSIONS: Among patients undergoing on pump cardiac surgery, targeting a higher versus a lower mean arterial pressure during cardiopulmonary bypass did not seem to affect the volume or number of new cerebral infarcts. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov. Unique identifier: NCT02185885. PMID- 29339353 TI - Correction: Prevention of Colitis and Colitis-Associated Colorectal Cancer by a Novel Polypharmacological Histone Deacetylase Inhibitor. PMID- 29339354 TI - Correction: Phase Ib/II Study of the Safety and Efficacy of Combination Therapy with Multikinase VEGF Inhibitor Pazopanib and MEK Inhibitor Trametinib In Advanced Soft Tissue Sarcoma. PMID- 29339355 TI - Re-Evaluation of the Normal Range of Serum Total CO2 Concentration. AB - A reliable determination of blood pH, PCO2, and [HCO3-] is necessary for assessing the acid-base status of a patient. However, most acid-base disorders are first recognized through abnormalities in serum total CO2 concentration ([TCO2]) in venous blood, a surrogate for [HCO3-]. In screening patients on the basis of serum [TCO2], we have been concerned about the wide limits of normal for serum [TCO2], 10-13 mEq/L, reported by many clinical laboratories. Indeed, we have encountered patients with serum [TCO2] values within the lower or upper end of the normal range of the reporting laboratory, who subsequently were shown to have a cardinal acid-base disorder.Here, we present a patient who had a serum [TCO2] within the lower end of the normal range of the clinical laboratory, which resulted in delayed diagnosis of a clinically important "hidden" acid-base disorder. To better define the appropriate limits of normal for serum [TCO2], we derived the expected normal range in peripheral venous blood in adults at sea level from carefully conducted acid-base studies. We then compared this range, 23 to 30 mEq/L, to that reported by 64 clinical laboratories, 2 large commercial clinical laboratories, and the major textbook of clinical chemistry. For the most part, the range in the laboratories we queried was substantially different than that we derived and that published in the textbook, with some laboratories reporting values as low as 18-20 mEq/L and as high as 33-35 mEq/L. We conclude that the limits of values of serum [TCO2] reported by clinical laboratories are very often inordinately wide and not consistent with the range of normal expected in healthy individuals at sea level. We suggest that the limits of normal of serum [TCO2] at sea level be tightened to 23-30 mEq/L. Such correction will ensure recognition of the majority of "hidden" acid-base disorders. PMID- 29339356 TI - Kidney Biomarkers and Decline in eGFR in Patients with Type 2 Diabetes. AB - BACKGROUND AND OBJECTIVES: Biomarkers may improve identification of individuals at risk of eGFR decline who may benefit from intervention or dialysis planning. However, available biomarkers remain incompletely validated for risk stratification and prediction modeling. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We examined serum cystatin C, urinary kidney injury molecule-1 (uKIM-1), and urinary neutrophil gelatinase-associated lipocalin (UNGAL) in 5367 individuals with type 2 diabetes mellitus and recent acute coronary syndromes enrolled in the Examination of Cardiovascular Outcomes with Alogliptin versus Standard of Care (EXAMINE) trial. Baseline concentrations and 6-month changes in biomarkers were also evaluated. Cox proportional regression was used to assess associations with a 50% decrease in eGFR, stage 5 CKD (eGFR<15 ml/min per 1.73 m2), or dialysis. RESULTS: eGFR decline occurred in 98 patients (1.8%) over a median of 1.5 years. All biomarkers individually were associated with higher risk of eGFR decline (P<0.001). However, when adjusting for baseline eGFR, proteinuria, and clinical factors, only baseline cystatin C (adjusted hazard ratio per 1 SD change, 1.66; 95% confidence interval, 1.41 to 1.96; P<0.001) and 6-month change in urinary neutrophil gelatinase-associated lipocalin (adjusted hazard ratio per 1 SD change, 1.07; 95% confidence interval, 1.02 to 1.12; P=0.004) independently associated with CKD progression. A base model for predicting kidney function decline with nine standard risk factors had strong discriminative ability (C-statistic 0.93). The addition of baseline cystatin C improved discrimination (C-statistic 0.94), but it failed to reclassify risk categories of individuals with and without eGFR decline. CONCLUSIONS: The addition of cystatin C or biomarkers of tubular injury did not meaningfully improve the prediction of eGFR decline beyond common clinical factors and routine laboratory data in a large cohort of patients with type 2 diabetes and recent acute coronary syndrome. PODCAST: This article contains a podcast at https://www.asn online.org/media/podcast/CJASN/2018_01_16_CJASNPodcast_18_3_G.mp3. PMID- 29339357 TI - Family History and Risk of Second Primary Breast Cancer after In Situ Breast Carcinoma. AB - Background: Incidence rates of in situ breast carcinomas have increased due to widespread adoption of mammography. Very little is known about why some women with in situ breast cancer later develop second primary breast cancers.Methods: In this population-based nested case-control study among in situ breast cancer survivors, including 539 cases with a second primary breast cancer and 994 matched controls, we evaluated the association between first-degree family history of breast cancer and risk of developing a second primary breast cancer.Results: First-degree family history of breast cancer was associated with an increased risk of developing a second primary breast cancer among women with a previous in situ breast cancer [odds ratio (OR) = 1.33, 95% confidence interval (CI), 1.05-1.69] and those with two or more affected first-degree relatives had an even higher risk (OR = 1.94; 95% CI, 1.15-3.28). Those whose relative was diagnosed at less than 50 years old were more likely to develop a second primary breast cancer (OR = 1.78; 95% CI, 1.24-2.57). No difference in risks associated with number or age of affected relatives was observed by menopausal status.Conclusions: Results from this study suggest that first-degree family history of breast cancer may be an important risk factor for development of a second primary breast cancer among women with a previous in situ breast cancer.Impact: Given the growing population of in situ breast cancer survivors, a better understanding of risk factors associated with development of a second primary breast cancer is needed to further understand risk. Cancer Epidemiol Biomarkers Prev; 27(3); 315-20. (c)2018 AACR. PMID- 29339360 TI - First Comprehensive Companion Diagnostic OK'd. AB - The FDA has approved F1CDx, a comprehensive companion diagnostic test that can detect genetic alterations and two genomic signatures in any type of solid tumor. Patients with five common types of advanced cancer can be matched to one of 17 targeted therapies with this single test. PMID- 29339358 TI - Family History of Cancer and Risk of Biliary Tract Cancers: Results from the Biliary Tract Cancers Pooling Project. AB - Background: Although some familial cancer syndromes include biliary tract cancers (BTCs; cancers of the gallbladder, intrahepatic and extrahepatic bile ducts, and ampulla of Vater), the few studies that have examined the relationships between family history of cancer (FHC) and BTCs have reported inconclusive findings. The objective of this study was to investigate the associations of FHC with risk of BTC in the Biliary Tract Cancers Pooling Project (BiTCaPP).Methods: We used Cox proportional hazards regressions models to estimate HRs and 95% confidence intervals for associations between FHC (any, first-degree, in female relative, in male relative, relative with gastrointestinal cancer, and relative with hormonally related cancer) and BTC risk by anatomic site within the biliary tract, adjusting for sex and race/ethnicity. Sensitivity analyses were conducted that restricted to studies reporting cholecystectomy data and to people without a history of cholecystectomy.Results: Data on FHC were available from 12 prospective studies within BiTCaPP, which collectively contributed 2,246 cases (729 gallbladder, 345 intrahepatic and 615 extrahepatic bile duct, and 385 ampulla of Vater cancers) with 21,706,107 person-years of follow-up. A marginal, inverse association between FHC and gallbladder cancer was driven to the null when analysis was restricted to studies reporting cholecystectomy data and to people without a history of cholecystectomy. FHC was not associated with risk of BTC at the other anatomic sites.Conclusions: These findings do not support an association between FHC and BTCs.Impact: In a study of 1.5 million people, FHC is not a risk factor for BTCs. Cancer Epidemiol Biomarkers Prev; 27(3); 348-51. (c)2018 AACR. PMID- 29339361 TI - David Oliver: Will we now see a serious attempt to tackle social care funding? PMID- 29339359 TI - Genetic Variants in Immune-Related Pathways and Breast Cancer Risk in African American Women in the AMBER Consortium. AB - Background: Constitutional immunity shaped by exposure to endemic infectious diseases and parasitic worms in Sub-Saharan Africa may play a role in the etiology of breast cancer among African American (AA) women.Methods: A total of 149,514 gene variants in 433 genes across 45 immune pathways were analyzed in the AMBER consortium among 3,663 breast cancer cases and 4,687 controls. Gene-based pathway analyses were conducted using the adaptive rank truncated product statistic for overall breast cancer risk, and risk by estrogen receptor (ER) status. Unconditional logistic regression analysis was used to estimate ORs and 95% confidence intervals (CIs) for single variants.Results: The top pathways were Interleukin binding (P = 0.01), Biocarta TNFR2 (P = 0.005), and positive regulation of cytokine production (P = 0.024) for overall, ER+, and ER- cancers, respectively. The most significant gene was IL2RB (P = 0.001) for overall cancer, with rs228952 being the top variant identified (OR = 0.85; 95% CI, 0.79-0.92). Only BCL3 contained a significant variant for ER+ breast cancer. Variants in IL2RB, TLR6, IL8, PRKDC, and MAP3K1 were associated with ER- disease. The only genes showing heterogeneity between ER- and ER+ cancers were TRAF1, MAP3K1, and MAPK3 (P <= 0.02). We also noted genes associated with autoimmune and atopic disorders.Conclusions: Findings from this study suggest that genetic variants in immune pathways are relevant to breast cancer susceptibility among AA women, both for ER+ and ER- breast cancers.Impact: Results from this study extend our understanding of how inherited genetic variation in immune pathways is relevant to breast cancer susceptibility. Cancer Epidemiol Biomarkers Prev; 27(3); 321-30. (c)2018 AACR. PMID- 29339362 TI - Circulation: Arrhythmia and Electrophysiology Editors and Editorial Board. PMID- 29339363 TI - In This Issue: January. PMID- 29339365 TI - Under pressure: meeting demand safely means knowing when to shout for help. PMID- 29339364 TI - Wider effects of the Bawa-Garba case on medical practice and public safety. PMID- 29339366 TI - Healthcare in Trump's first year. PMID- 29339368 TI - GMC's push for erasure of paediatrician is questionable. PMID- 29339370 TI - Nature's Wastebasket: The Role of the External Carotid Artery in Acute Stroke. AB - We describe a novel technical approach to acute stroke illustrated by the case of a 41 year old male who presented with tandem right common carotid artery (CCA) and M1 occlusions. His NIHSS was 17 and Alberta stroke programe early CT score (ASPECTs) was 8. Thrombectomy initially proved challenging due to large volume CCA thrombus that repeatedly occluded the aspiration catheters. However, by inflating a balloon distally and pulling clot into the adjacent ECA, we were able to quickly restore distal contrast flow to the intracranial circulation and achieve Thrombolysis In Cerebral Infarction/Arterial Occlusive Lesion (TICI2C/AOL3) revascularization. PMID- 29339372 TI - Correction: Mismatch Repair Proteins Initiate Epigenetic Alterations during Inflammation-Driven Tumorigenesis. PMID- 29339373 TI - A year in health and healthcare under President Trump. PMID- 29339374 TI - Multicenter evaluation of a new closed system drug-transfer device in reducing surface contamination by antineoplastic hazardous drugs. AB - PURPOSE: Results of a study to evaluate the effectiveness of a recently introduced closed system drug-transfer device (CSTD) in reducing surface contamination during compounding and simulated administration of antineoplastic hazardous drugs (AHDs) are reported. METHODS: Wipe samples were collected from 6 predetermined surfaces in compounding and infusion areas of 13 U.S. cancer centers to establish preexisting levels of surface contamination by 2 marker AHDs (cyclophosphamide and fluorouracil). Stainless steel templates were placed over the 6 previously sampled surfaces, and the marker drugs were compounded and infused per a specific protocol using all components of the CSTD. Wipe samples were collected from the templates after completion of tasks and analyzed for both marker AHDs. RESULTS: Aggregated results of wipe sampling to detect preexisting contamination at the 13 study sites showed that overall, 66.7% of samples (104 of 156) had detectable levels of at least 1 marker AHD; subsequent testing after CSTD use per protocol found a sample contamination rate of 5.8% (9 of 156 samples). In the administration areas alone, the rate of preexisting contamination was 78% (61 of 78 samples); with use of the CSTD protocol, the contamination rate was 2.6%. Twenty-six participants rated the CSTD for ease of use, with 100% indicating that they were satisfied or extremely satisfied. CONCLUSION: A study involving a rigorous protocol and 13 cancer centers across the United States demonstrated that the CSTD reduced surface contamination by cyclophosphamide and fluorouracil during compounding and simulated administration. Participants reported that the CSTD was easy to use. PMID- 29339375 TI - TUSC2 Immunogene Therapy Synergizes with Anti-PD-1 through Enhanced Proliferation and Infiltration of Natural Killer Cells in Syngeneic Kras-Mutant Mouse Lung Cancer Models. AB - Expression of the multikinase inhibitor encoded by the tumor suppressor gene TUSC2 (also known as FUS1) is lost or decreased in non-small cell lung carcinoma (NSCLC). TUSC2 delivered systemically by nanovesicles has mediated tumor regression in clinical trials. Because of the role of TUSC2 in regulating immune cells, we assessed TUSC2 efficacy on antitumor immune responses alone and in combination with anti-PD-1 in two Kras-mutant syngeneic mouse lung cancer models. TUSC2 alone significantly reduced tumor growth and prolonged survival compared with anti-PD-1. When combined, this effect was significantly enhanced, and correlated with a pronounced increases in circulating and splenic natural killer (NK) cells and CD8+ T cells, and a decrease in regulatory T cells (Tregs), myeloid-derived suppressor cells (MDSCs), and T-cell checkpoint receptors PD-1, CTLA-4, and TIM-3. TUSC2 combined with anti-PD-1 induced tumor infiltrating more than NK and CD8+ T cells and fewer MDSCs and Tregs than each agent alone, both in subcutaneous tumor and in lung metastases. NK-cell depletion abrogated the antitumor effect and Th1-mediated immune response of this combination, indicating that NK cells mediate TUSC2/anti-PD-1 synergy. Release of IL15 and IL18 cytokines and expression of the IL15Ralpha chain and IL18R1 were associated with NK-cell activation by TUSC2. Immune response-related gene expression in the tumor microenvironment was altered by combination treatment. These data provide a rationale for immunogene therapy combined with immune checkpoint blockade in the treatment of NSCLC. Cancer Immunol Res; 6(2); 163-77. (c)2018 AACR. PMID- 29339376 TI - Tumor Immunity and Survival as a Function of Alternative Neopeptides in Human Cancer. AB - The immune system exerts antitumor activity via T cell-dependent recognition of tumor-specific antigens. Although the number of tumor neopeptides-peptides derived from somatic mutations-often correlates with immune activity and survival, most classically defined high-affinity neopeptides (CDNs) are not immunogenic, and only rare CDNs have been linked to tumor rejection. Thus, the rules of tumor antigen recognition remain incompletely understood. Here, we analyzed neopeptides, immune activity, and clinical outcome from 6,324 patients across 27 tumor types. We characterized a class of "alternatively defined neopeptides" (ADNs), which are mutant peptides predicted to bind MHC (class I or II) with improved affinity relative to their nonmutated counterpart. ADNs are abundant and molecularly distinct from CDNs. The load of ADNs correlated with intratumoral T-cell responses and immune suppression, and ADNs were also strong predictors of patient survival across tumor types. These results expand the spectrum of mutation-derived tumor antigens with potential clinical relevance. Cancer Immunol Res; 6(3); 1-12. (c)2018 AACR. PMID- 29339378 TI - Smartphone GP consultation app cost CCG L150 000 in first two months. PMID- 29339379 TI - Correction: Lipid signaling to membrane proteins: From second messengers to membrane domains and adapter-free endocytosis. PMID- 29339377 TI - Robust Antitumor Responses Result from Local Chemotherapy and CTLA-4 Blockade. AB - Clinical responses to immunotherapy have been associated with augmentation of preexisting immune responses, manifested by heightened inflammation in the tumor microenvironment. However, many tumors have a noninflamed microenvironment, and response rates to immunotherapy in melanoma have been <50%. We approached this problem by utilizing immunotherapy (CTLA-4 blockade) combined with chemotherapy to induce local inflammation. In murine models of melanoma and prostate cancer, the combination of chemotherapy and CTLA-4 blockade induced a shift in the cellular composition of the tumor microenvironment, with infiltrating CD8+ and CD4+ T cells increasing the CD8/Foxp3 T-cell ratio. These changes were associated with improved survival of the mice. To translate these findings into a clinical setting, 26 patients with advanced melanoma were treated locally by isolated limb infusion with the nitrogen mustard alkylating agent melphalan followed by systemic administration of CTLA-4 blocking antibody (ipilimumab) in a phase II trial. This combination of local chemotherapy with systemic checkpoint blockade inhibitor resulted in a response rate of 85% at 3 months (62% complete and 23% partial response rate) and a 58% progression-free survival at 1 year. The clinical response was associated with increased T-cell infiltration, similar to that seen in the murine models. Together, our findings suggest that local chemotherapy combined with checkpoint blockade-based immunotherapy results in a durable response to cancer therapy. Cancer Immunol Res; 6(2); 189-200. (c)2018 AACR. PMID- 29339381 TI - Cholecystokinin is involved in triglyceride fatty acid uptake by rat adipose tissue. AB - The incorporation of plasma triglyceride (TG) fatty acids to white adipose tissue (WAT) depends on lipoprotein lipase (LPL), which is regulated by angiopoietin like protein-4 (ANGPTL-4), an unfolding molecular chaperone that converts active LPL dimers into inactive monomers. The production of ANGPTL-4 is promoted by fasting and repressed by feeding. We hypothesized that the postprandial hormone cholecystokinin (CCK) facilitates the storage of dietary TG fatty acids in WAT by regulating the activity of the LPL/ANGPTL-4 axis and that it does so by acting directly on CCK receptors in adipocytes. We report that administration of CCK-8 (a bioactive fragment of CCK) to rats: (i) reduces plasma ANGTPL-4 levels; (ii) represses Angptl-4 expression in WAT and (iii) simultaneously enhances LPL activity in this tissue without inducing Lpl expression. In vivo CCK-8 effects are specifically antagonized by the CCK-2 receptor (CCK-2R) antagonist, L 365,260. Moreover, CCK-8 downregulates Angptl-4 expression in wild-type pre adipocytes, an effect that is not observed in engineered pre-adipocytes lacking CCK-2R. These effects have functional consequences as CCK-8 was found to promote the uptake of dietary fatty acids by WAT, as demonstrated by means of proton nuclear magnetic resonance (1H-NMR). The efficacy of acute CCK-8 administration was not reduced after chronic CCK-8 treatment. Moreover, the effects of CCK-8 on WAT were not associated to the increase of circulating insulin. Our results show that cholecystokinin promotes lipid storage in WAT by acting on adipocyte CCK-2R, suggesting a pivotal role for CCK in TG homeostasis. PMID- 29339380 TI - Negative regulation of the Keap1-Nrf2 pathway by a p62/Sqstm1 splicing variant. AB - A key anti-oxidant pathway, the Keap1-Nrf2 system, is regulated by p62/Sqstm1 via multiple mechanisms, including gene expression, post-translational modifications such as ubiquitination and phosphorylation, and autophagic degradation of p62/Sqstm1 and Keap1. Herein, we demonstrate a novel mode of regulation of the Keap1-Nrf2 system, mediated by a splicing variant of p62/Sqstm1 pre-mRNA. Ensembl database search and subsequent biochemical analyses in mice revealed the presence of an mRNA that encodes p62/Sqstm1 protein lacking the Keap1-interacting region (KIR), which is essential for the interaction with Keap1. Like full-length p62, the variant was induced under conditions in which Nrf2 was activated (e.g., impairment of autophagy), oligomerized with itself and/or full-length protein, and was degraded by autophagy. However, the variant failed to interact with Keap1 and sequester it into variant-positive aggregates. Remarkably, while full-length p62 stabilized Nrf2 and induced the gene expression of Nrf2 targets, the variant increased the amount of Keap1 and enhanced ubiquitination of Nrf2, thereby suppressing the induction of Nrf2 targets. Hepatocytes isolated from genetically modified mice that express full-length p62, but not the variant, were susceptible to activation of Nrf2 in response to stress. Collectively, our results suggest that splicing of p62/Sqstm1 pre-mRNA negatively regulates the Keap1-Nrf2 pathway. PMID- 29339382 TI - In Vitro Susceptibility of Neisseria gonorrhoeae Strains to Mupirocin, an Antibiotic Reformulated for Parenteral Administration in Nanoliposomes. AB - Neisseria gonorrhoeae is an urgent antibiotic-resistant threat. This study determined the MICs of mupirocin to be 0.0039 to 0.0625 MUg/ml for 94 N. gonorrhoeae strains. Cross-resistance with other antibiotics was not detected. Mupirocin, which is currently limited to topical administration, demonstrated activity by injection when delivered in nanoliposomes. The nanoliposomal formulation of mupirocin is a potential treatment for drug-resistant N. gonorrhoeae. PMID- 29339383 TI - New Shuttle Vectors for Gene Cloning and Expression in Multidrug-Resistant Acinetobacter Species. AB - Understanding bacterial pathogenesis requires adequate genetic tools to assess the role of individual virulence determinants by mutagenesis and complementation assays, as well as for homologous and heterologous expression of cloned genes. Our knowledge of Acinetobacter baumannii pathogenesis has so far been limited by the scarcity of genetic tools to manipulate multidrug-resistant (MDR) epidemic strains, which are responsible for most infections. Here, we report on the construction of new multipurpose shuttle plasmids, namely, pVRL1 and pVRL2, which can efficiently replicate in Acinetobacter spp. and in Escherichia coli The pVRL1 plasmid has been constructed by combining (i) the cryptic plasmid pWH1277 from Acinetobacter calcoaceticus, which provides an origin of replication for Acinetobacter spp.; (ii) a ColE1-like origin of replication; (iii) the gentamicin or zeocin resistance cassette for antibiotic selection; and (iv) a multilinker containing several unique restriction sites. Modification of pVRL1 led to the generation of the pVRL2 plasmid, which allows arabinose-inducible gene transcription with an undetectable basal expression level of cloned genes under uninduced conditions and a high dynamic range of responsiveness to the inducer. Both pVRL1 and pVRL2 can easily be selected in MDR A. baumannii, have a narrow host range and a high copy number, are stably maintained in Acinetobacter spp., and appear to be compatible with indigenous plasmids carried by epidemic strains. Plasmid maintenance is guaranteed by the presence of a toxin-antitoxin system, providing more insights into the mechanism of plasmid stability in Acinetobacter spp. PMID- 29339384 TI - A Novel Inhibitor of the LolCDE ABC Transporter Essential for Lipoprotein Trafficking in Gram-Negative Bacteria. AB - The outer membrane is an essential structural component of Gram-negative bacteria that is composed of lipoproteins, lipopolysaccharides, phospholipids, and integral beta-barrel membrane proteins. A dedicated machinery, called the Lol system, ensures proper trafficking of lipoproteins from the inner to the outer membrane. The LolCDE ABC transporter is the inner membrane component, which is essential for bacterial viability. Here, we report a novel pyrrolopyrimidinedione compound, G0507, which was identified in a phenotypic screen for inhibitors of Escherichia coli growth followed by selection of compounds that induced the extracytoplasmic sigmaE stress response. Mutations in lolC, lolD, and lolE conferred resistance to G0507, suggesting LolCDE as its molecular target. Treatment of E. coli cells with G0507 resulted in accumulation of fully processed Lpp, an outer membrane lipoprotein, in the inner membrane. Using purified protein complexes, we found that G0507 binds to LolCDE and stimulates its ATPase activity. G0507 still binds to LolCDE harboring a Q258K substitution in LolC (LolCQ258K), which confers high-level resistance to G0507 in vivo but no longer stimulates ATPase activity. Our work demonstrates that G0507 has significant promise as a chemical probe to dissect lipoprotein trafficking in Gram-negative bacteria. PMID- 29339385 TI - A Before-and-After Study of the Effectiveness of an Antimicrobial Stewardship Program in Critical Care. AB - We evaluated the use of antimicrobials expressed as defined daily doses (DDDs) per 1,000 patient days and days of therapy (DOT) per 100 occupied bed-days in a intensive care unit (ICU) of a general hospital in Barcelona, Spain, before and after implementation of an antimicrobial stewardship (AMS) program (2007 to 2010 versus 2011 to 2015). The quarterly costs of antimicrobials used in the ICU and its weight in the overall hospital costs of antimicrobials were calculated. The effect of the applied AMS program on DDDs and DOT time series data was analyzed by means of intervention time series analysis. A total of 5,002 patients were included (1,971 for the first [before] period and 3,031 for the second [after] period). The percentage of patients treated with one or more antimicrobials decreased from 88.6 to 77.2% (P < 0.001). DDDs decreased from 246.8 to 192.3 (mean difference, -54.5; P = 0.001) and DOT from 66.7 to 54.6 (mean difference, 12.1; P = 0.066). The mean cost per trimester decreased from ?115,543 to ?73,477 (mean difference, -42,065.4 euros; P < 0.001), and the percentage of ICU antimicrobials cost with respect to the total cost of hospital antimicrobials decreased from 28.5 to 22.8% (mean difference, -5.59; P = 0.023). Implementation of an AMS program in the ICU was associated with a marked reduction in the use of antimicrobials, with cost savings close to one million euros since its implementation. An AMS program can have a significant impact on optimizing antimicrobial use in critical care practice. PMID- 29339386 TI - Pterostilbene, a Potential MCR-1 Inhibitor That Enhances the Efficacy of Polymyxin B. AB - We characterized the synergistic effect produced between pterostilbene and polymyxin B (fractional inhibitory concentration [FIC] index = 0.156 or 0.188) against MCR-producing Escherichia coli strains of both human and animal origins. The time-killing assays showed that either pterostilbene or polymyxin B failed to eradicate the mcr-1- and NDM-positive E. coli strain ZJ487, but the combination eliminated the strain by 1 h postinoculation. The survival rate of mice after intraperitoneal infections was significantly enhanced from 0% to 60% in the group in which combination therapy was applied. PMID- 29339387 TI - Genetic Basis of Emerging Vancomycin, Linezolid, and Daptomycin Heteroresistance in a Case of Persistent Enterococcus faecium Bacteremia. AB - Whole-genome sequencing was used to examine a persistent Enterococcus faecium bacteremia that acquired heteroresistance to three antibiotics in response to prolonged multidrug therapy. A comparison of the complete genomes before and after each change revealed the emergence of known resistance determinants for vancomycin and linezolid and suggested that a novel mutation in fabF, encoding a fatty acid synthase, was responsible for daptomycin nonsusceptibility. Plasmid recombination contributed to the progressive loss of vancomycin resistance after withdrawal of the drug. PMID- 29339388 TI - Combating Carbapenem-Resistant Acinetobacter baumannii by an Optimized Imipenem plus-Tobramycin Dosage Regimen: Prospective Validation via Hollow-Fiber Infection and Mathematical Modeling. AB - We aimed to prospectively validate an optimized combination dosage regimen against a clinical carbapenem-resistant Acinetobacter baumannii (CRAB) isolate (imipenem MIC, 32 mg/liter; tobramycin MIC, 2 mg/liter). Imipenem at constant concentrations (7.6, 13.4, and 23.3 mg/liter, reflecting a range of clearances) was simulated in a 7-day hollow-fiber infection model (inoculum, ~107.2 CFU/ml) with and without tobramycin (7 mg/kg q24h, 0.5-h infusions). While monotherapies achieved no killing or failed by 24 h, this rationally optimized combination achieved >5 log10 bacterial killing and suppressed resistance. PMID- 29339389 TI - In Vitro Antibiotic Susceptibility Pattern of Non-diphtheriae Corynebacterium Isolates in Ontario, Canada, from 2011 to 2016. AB - Non-diphtheriae Corynebacterium-associated disease has been increasingly observed and often presents a conundrum to the treating physician. Analysis of antibiotic susceptibility testing data for 1,970 clinical Corynebacterium isolates received between 2011 and 2016 revealed that empirical drug treatment options are limited to vancomycin and linezolid. Corynebacterium striatum was the most frequently observed species during this study period, along with C. amycolatum and C. pseudodiphtheriticum/C. propinquum Low levels of susceptibility to penicillin (14.5%), erythromycin (15.1%), and clindamycin (8.7%) were observed for non diphtheriae Corynebacterium species, while 3.0% of isolates were not susceptible to daptomycin. Similarly, 26.9% and 38.1% of Corynebacterium isolates were susceptible to ciprofloxacin and trimethoprim-sulfamethoxazole, respectively. Our data show much lower susceptibility to penicillin than previously reported in the literature and an increasing number of isolates resistant to daptomycin, highlighting the need for continued antibiotic surveillance studies for appropriate patient management and treatment success. PMID- 29339391 TI - Intrapulmonary Pharmacokinetics of Lascufloxacin in Healthy Adult Volunteers. AB - This study was performed to investigate the intrapulmonary penetration of lascufloxacin in humans. Thirty healthy adult male Japanese subjects, allocated into five groups, received lascufloxacin in a single oral dose of 75 mg. Bronchoalveolar lavage and blood sampling were performed simultaneously in each subject at 1, 2, 4, 6, or 24 h after administration, and lascufloxacin concentrations in plasma, epithelial lining fluid, and alveolar macrophages were determined. Lascufloxacin was rapidly distributed to the epithelial lining fluid with a time to maximum drug concentration (Tmax) of 1 h, which was identical to that in plasma. The maximum concentration of drug (Cmax) values in plasma, epithelial lining fluid, and alveolar macrophages were 0.576, 12.3, and 21.8 MUg/ml, respectively. The corresponding area under the concentration-time curve from 0 to 24 h (AUC0-24) values were 7.67, 123, and 325 MUg . h/ml. The mean drug concentrations in the epithelial lining fluid and alveolar macrophages were much higher than those in plasma at all time points examined, and the average site-to free plasma concentration ratios fell within the ranges of 57.5 to 86.4 and 71.0 to 217, respectively. Drug levels in epithelial lining fluid and alveolar macrophages exceeded the MIC90 values for common respiratory pathogens. (This study was registered at JAPIC under registration number JapicCTI-142547.). PMID- 29339390 TI - Identification of Hsp90 Inhibitors with Anti-Plasmodium Activity. AB - Malaria remains a global health burden partly due to Plasmodium parasite resistance to first-line therapeutics. The molecular chaperone heat shock protein 90 (Hsp90) has emerged as an essential protein for blood-stage Plasmodium parasites, but details about its function during malaria's elusive liver stage are unclear. We used target-based screens to identify compounds that bind to Plasmodium falciparum and human Hsp90, which revealed insights into chemotypes with species-selective binding. Using cell-based malaria assays, we demonstrate that all identified Hsp90-binding compounds are liver- and blood-stage Plasmodium inhibitors. Additionally, the Hsp90 inhibitor SNX-0723 in combination with the phosphatidylinositol 3-kinase inhibitor PIK-75 synergistically reduces the liver stage parasite load. Time course inhibition studies with the Hsp90 inhibitors and expression analysis support a role for Plasmodium Hsp90 in late-liver-stage parasite development. Our results suggest that Plasmodium Hsp90 is essential to liver- and blood-stage parasite infections and highlight an attractive route for development of species-selective PfHsp90 inhibitors that may act synergistically in combination therapies to prevent and treat malaria. PMID- 29339392 TI - A Novel Piperazine-Based Drug Lead for Cryptosporidiosis from the Medicines for Malaria Venture Open-Access Malaria Box. AB - Cryptosporidiosis causes life-threatening diarrhea in children under the age of 5 years and prolonged diarrhea in immunodeficient people, especially AIDS patients. The standard of care, nitazoxanide, is modestly effective in children and ineffective in immunocompromised individuals. In addition to the need for new drugs, better knowledge of drug properties that drive in vivo efficacy is needed to facilitate drug development. We report the identification of a piperazine based lead compound for Cryptosporidium drug development, MMV665917, and a new pharmacodynamic method used for its characterization. The identification of MMV665917 from the Medicines for Malaria Venture Malaria Box was followed by dose response studies, in vitro toxicity studies, and structure-activity relationship studies using commercial analogues. The potency of this compound against Cryptosporidium parvum Iowa and field isolates was comparable to that against Cryptosporidium hominis Furthermore, unlike nitazoxanide, clofazimine, and paromomycin, MMV665917 appeared to be curative in a NOD SCID gamma mouse model of chronic cryptosporidiosis. MMV665917 was also efficacious in a gamma interferon knockout mouse model of acute cryptosporidiosis. To determine if efficacy in this mouse model of chronic infection might relate to whether compounds are parasiticidal or parasitistatic for C. parvum, we developed a novel in vitro parasite persistence assay. This assay suggested that MMV665917 was parasiticidal, unlike nitazoxanide, clofazimine, and paromomycin. The assay also enabled determination of the concentration of the compound required to maximize the rate of parasite elimination. This time-kill assay can be used to prioritize early-stage Cryptosporidium drug leads and may aid in planning in vivo efficacy experiments. Collectively, these results identify MMV665917 as a promising lead and establish a new method for characterizing potential anticryptosporidial agents. PMID- 29339393 TI - Early Clinical Assessment of the Antimicrobial Activity of Finafloxacin Compared to Ciprofloxacin in Subsets of Microbiologically Characterized Isolates. AB - Two phase II studies were performed with patients with uncomplicated urinary tract infections (uUTIs) and complicated urinary tract infections (cUTIs) or acute pyelonephritis (PN) to compare finafloxacin (300 mg twice a day [b.i.d.] orally for uUTI and 800 mg once a day [q.d.] intravenously [i.v.] for cUTI/PN) and ciprofloxacin (250 mg b.i.d. orally for uUTI and 400 mg b.i.d. i.v. for cUTI/PN). The early response to the study medications was evaluated in the microbiological intent-to-treat population (mITT) at day 3. A total of 21% of the isolates were ciprofloxacin resistant, 13.7% were primed pathogens carrying a mutation(s) potentially fostering fluoroquinolone resistance development, and 7.1% produced extended-spectrum beta-lactamases (ESBLs). Finafloxacin demonstrated very good early clinical activity, with microbiological eradication rates of 88.6% (n = 132), compared to 78.7% (n = 61) for ciprofloxacin, and 69.6% (n = 23), compared to 35.7% (n = 14) for ciprofloxacin, in patients with ciprofloxacin-resistant uropathogens; 94.1% (n = 17), compared to 80.0% (n = 10) for ciprofloxacin, in patients infected with uropathogens primed for fluoroquinolone resistance uropathogens; and 91.7% (n = 11), compared to 0% for ciprofloxacin, in patients infected with ESBL producers. Finafloxacin demonstrated early and rapid activity against uropathogens, including fluoroquinolone-resistant and/or multiresistant pathogens or ESBL producers, while ciprofloxacin was less active against this subset of resistant pathogens. Susceptibilities of pathogens were quantitated by broth microdilution. Isolates were subgrouped according to their susceptibility patterns, in particular first step quinolone resistance, quinolone resistance, and ESBL production. Eradication was defined as the elimination or reduction of study entry pathogens to <103 CFU/ml in urine culture. (The studies described in this paper have been registered at ClinicalTrials.gov under identifiers NCT00722735 and NCT01928433.). PMID- 29339394 TI - Population Pharmacokinetics of Finafloxacin in Healthy Volunteers and Patients with Complicated Urinary Tract Infections. AB - Finafloxacin is a novel fluoroquinolone with increased antibacterial activity at acidic pH and reduced susceptibility to several resistance mechanisms. A phase II study revealed a good efficacy/safety profile in patients with complicated urinary tract infections (cUTIs), while the pharmacokinetics was characterized by highly variable concentration-versus-time profiles, suggesting the need for an elaborated pharmacokinetic model. Data from three clinical trials were evaluated: 127 healthy volunteers were dosed orally (n = 77) or intravenously (n = 50), and 139 patients with cUTI received finafloxacin intravenously. Plasma (2,824 samples from volunteers and 414 samples from patients) and urine (496 samples from volunteers and 135 samples patients) concentrations were quantified by liquid chromatography-tandem mass spectrometry (LC-MS/MS). NONMEM was used to build a population pharmacokinetic model, and pharmacokinetic/pharmacodynamic relationships were investigated via simulations and logistic regression. A two compartment model with first-order elimination described the data best (central volume of distribution [Vc] and peripheral volume of distribution [Vp] of 47 liters [20%] and 43 liters [67%], respectively, and elimination clearance and intercompartmental clearance of 21 liters/h [54%] and 2.8 liters/h [57%], respectively [median bootstrap estimates {coefficients of variation}]). Vc increased with body surface area, and clearance was reduced in patients (-29%). Oral absorption was described best by parallel first- and zero-order processes (bioavailability of 75%). No pharmacodynamic surrogate parameter of clinical/microbiological outcome could be identified, which depended exclusively on the MIC of the causative pathogens. Despite the interindividual variability, the present data set does not support covariate-based dose adjustments. Based on the favorable safety and efficacy data, the clinical relevance of the observed variability appears to be limited. (This study has been registered at ClinicalTrials.gov under identifier NCT01928433.). PMID- 29339395 TI - Explorative Randomized Phase II Clinical Study of the Efficacy and Safety of Finafloxacin versus Ciprofloxacin for Treatment of Complicated Urinary Tract Infections. AB - The broad-spectrum C-8-cyano-fluoroquinolone finafloxacin displays enhanced activity under acidic conditions. This phase II clinical study compared the efficacies and safeties of finafloxacin and ciprofloxacin in patients with complicated urinary tract infection and/or pyelonephritis. A 5-day regimen with 800 mg finafloxacin once a day (q.d.) (FINA05) had results similar to those of a 10-day regimen with 800 mg finafloxacin q.d. (FINA10). Combined microbiological and clinical responses at the test-of-cure (TOC) visit were 70% for FINA05, 68% for FINA10, and 57% for a 10-day ciprofloxacin regimen (CIPRO10) in 193 patients (64 for FINA05, 68 for FINA10, and 61 for CIPRO10) of the microbiological intent to-treat (mITT) population. Additionally, the clinical effects of ciprofloxacin on patients with an acidic urine pH (80% of patients) were reduced, whereas the effects of finafloxacin were unchanged. Finafloxacin was safe and well tolerated. Overall, 43.4% of the patients in the FINA05 group, 42.7% in the FINA10 group, and 54.2% in the CIPRO10 group experienced mostly mild and treatment-emergent but unrelated adverse events. A short-course regimen of 5 days of finafloxacin resulted in high eradication and improved clinical outcome rates compared to those for treatment with ciprofloxacin for 10 days. In contrast to those of ciprofloxacin, the clinical effects of finafloxacin were not reduced by acidic urine pH. Hospitalized adults were randomized 1:1:1 to finafloxacin treatment (800 mg q.d.) for either 5 or 10 days or to ciprofloxacin treatment (400 mg/500 mg b.i.d.) for 10 days with an optional switch from intravenous (i.v.) to oral administration at day 3. The primary endpoint was the combined microbiological and clinical response at the TOC visit in the microbiological intent-to-treat population. (This study has been registered at ClinicalTrials.gov under identifier NCT01928433.). PMID- 29339396 TI - Efficacy of Apramycin against Multidrug-Resistant Acinetobacter baumannii in the Murine Neutropenic Thigh Model. AB - Apramycin, an aminocyclitol aminoglycoside, was rapidly bactericidal against Acinetobacter baumannii In a neutropenic murine thigh infection model, treatment associated A. baumannii CFU reductions of >4 log10 per thigh were observed for all exposures for which area under the curve (AUC)/MIC ratio was >50 and maximum concentration of drug in serum (Cmax)/MIC was ~10 or higher. Based on these findings, we suggest that apramycin deserves further preclinical exploration as a repurposed therapeutic for multidrug-resistant Gram-negative pathogens, including A. baumannii. PMID- 29339398 TI - Assay Conditions Influence Affinities of Rat Organic Cation Transporter 1: Analysis of Mutagenesis in the Modeled Outward-Facing Cleft by Measuring Effects of Substrates and Inhibitors on Initial Uptake. AB - The effects of mutations in the modeled outward-open cleft of rat organic cation transporter 1 (rOCT1) on affinities of substrates and inhibitors were investigated. Human embryonic kidney 293 cells were stably transfected with rOCT1 or rOCT1 mutants, and uptake of the substrates 1-methyl-4-phenylpyridinium+ (MPP+) and tetraethylammonium+ (TEA+) or inhibition of MPP+ uptake by the nontransported inhibitors tetrabutylammonium+ (TBuA+), tetrapentylammonium+ (TPeA+), and corticosterone was measured. Uptake measurements were performed on confluent cell layers using a 2-minute incubation or in dissociated cells using incubation times of 1, 5, or 10 seconds. With both methods, different apparent Michaelis-Menten constant (Km) values, different IC50 values, and varying effects of mutations were determined. In addition, varying IC50 values for the inhibition of MPP+ uptake and varying effects of mutations were obtained when different MPP+ concentrations far below the apparent Km value were used for uptake measurements. Eleven mutations were investigated by measuring initial uptake in dissociated cells and employing 0.1 uM MPP+ for uptake during inhibition experiments. Altered affinities for substrates and/or inhibitors were observed when Phe160, Trp218, Arg440, Leu447, and Asp475 were mutated. The mutations resulted in changes of apparent Km values for TEA+ and/or MPP+ Mutation of Trp218 and Asp475 led to altered IC50 values for TBuA+, TPeA+, and corticosterone, whereas the mutation of Phe160 and Leu447 changed the IC50 values for two inhibitors. Thereby amino acids in the outward-facing conformation of rOCT1 could be identified that interact with structurally different inhibitors and probably also with different substrates. PMID- 29339397 TI - Heat Shock Factor HsfA1a Is Essential for R Gene-Mediated Nematode Resistance and Triggers H2O2 Production1. AB - Plants generate reactive oxygen species (ROS) in the apoplast in response to pathogen attack, especially following resistance (R) gene-mediated pathogen recognition; however, the mechanisms activating ROS generation remain unknown. Here, we demonstrate that RKN (Meloidogyne incognita) infection rapidly induces ROS accumulation in the roots of tomato (Solanum lycopersicum) plants that contain the R gene Mi-1.2 but rarely induces ROS accumulation in the susceptible or Mi-1.2-silenced resistant genotypes. RNK also induces the hypersensitive response, a form of programmed cell death, in Mi-1.2 plants. RKN induces the expression of numerous class-A heat shock factor (HsfA) genes in resistant tomato plants. Silencing HsfA1a compromises Mi-1.2-mediated resistance, apoplastic H2O2 accumulation, and the transcription of whitefly induced 1 (Wfi1), which encodes a respiratory burst oxidase homolog. HsfA1a regulates Wfi1 transcription by binding to the Wfi1 promoter, and silencing of Wfi1 compromises Mi-1.2-mediated resistance. HsfA1a and Wfi1 are involved in Mi-1.2-triggered Hsp90 accumulation and basal defense in susceptible tomato. Thus, HsfA-1aWfi1-dependent ROS signaling functions as a crucial regulator of plant defense responses. PMID- 29339399 TI - Ovariectomy-induced bone loss in TNFalpha and IL6 gene knockout mice is regulated by different mechanisms. AB - We examined the effects of tumor necrosis factor-alpha (TNFalpha) and interleukin 6 (IL6) gene knockout in preserving the bone loss induced by ovariectomy (OVX) and the mechanisms involved in bone metabolism. Twenty female wild-type (WT), TNFalpha-knockout (TNFalpha-/-) or IL6-knockout (IL6-/-) mice aged 12 weeks were sham-operated (SHAM) or subjected to OVX and killed after 4 weeks. Bone mass and skeletal microarchitecture were determined using micro-CT. Bone marrow stromal cells (BMSCs) from all three groups (WT, TNFalpha-/- and IL6-/-) were induced to differentiate into osteoblasts or osteoclasts and treated with 17-beta-estradiol. Bone metabolism was assessed by histological analysis, serum analyses and qRT PCR. OVX successfully induced a high turnover in all mice, but a repair effect was observed in TNFalpha-/- and IL6-/- mice. The ratio of femoral trabecular bone volume to tissue volume, trabecular number and trabecular thickness were significantly decreased in WT mice subjected to OVX, but increased in TNFalpha-/- mice (1.62, 1.34, 0.27-fold respectively; P < 0.01) and IL6-/- mice (1.34, 0.80, 0.22-fold respectively; P < 0.01). Furthermore, we observed a 29.6% increase in the trabecular number in TNFalpha-/- mice when compared to the IL6-/- mice. Both, TNFalpha-/- and IL6-/- BMSCs exhibited decreased numbers of TRAP-positive cells and an increase in ALP-positive cells, with or without E2 treatment (P < 0.05). While the knockout of TNFalpha or IL6 significantly upregulated mRNA expressions of osteoblast-related genes (Runx2 and Col1a1) and downregulated osteoclast related mRNA for TRAP, MMP9 and CTSK in vivo and in vitro, TNFalpha knockout appeared to have roles beyond IL6 knockout in upregulating Col1a1 mRNA expression and downregulating mRNA expressions of WNT-related genes (DKK1 and Sost) and TNF related activation-induced genes (TRAF6). TNFalpha seemed to be more potentially invasive in inhibiting bone formation and enhancing TRAF6-mediated osteoclastogenesis than IL6, implying that the regulatory mechanisms of TNFalpha and IL6 in bone metabolism may be different. PMID- 29339400 TI - Intact glucose uptake despite deteriorating signaling in adipocytes with high-fat feeding. AB - To capture immediate cellular changes during diet-induced expansion of adipocyte cell volume and number, we characterized mature adipocytes during a short-term high-fat diet (HFD) intervention. Male C57BL6/J mice were fed chow diet, and then switched to HFD for 2, 4, 6 or 14 days. Systemic glucose clearance was assessed by glucose tolerance test. Adipose tissue was dissected for RNA-seq and cell size distribution analysis using coulter counting. Insulin response in isolated adipocytes was monitored by glucose uptake assay and Western blotting, and confocal microscopy was used to assess autophagic activity. Switching to HFD was accompanied by an immediate adipocyte size expansion and onset of systemic insulin resistance already after two days, followed by recruitment of new adipocytes. Despite an initially increased non-stimulated and preserved insulin stimulated glucose uptake, we observed a decreased phosphorylation of insulin receptor substrate-1 (IRS-1) and protein kinase B (PKB). After 14 days of HFD, both the insulin-stimulated phosphorylation of Akt substrate of 160 kDa (AS160) and glucose uptake was blunted. RNA-seq analysis of adipose tissue revealed transient changes in gene expression at day four, including highly significant upregulation of Trp53inp, previously demonstrated to be involved in autophagy. We confirmed increased autophagy, measured as an increased density of LC3-positive puncta and decreased p62 expression after 14 days of HFD. In conclusion, HFD rapidly induced systemic insulin resistance, whereas insulin-stimulated glucose uptake remained intact throughout 6 days of HFD feeding. We also identified autophagy as an early cellular process that potentially influences adipocyte function upon switching to HFD. PMID- 29339401 TI - The impact of preload reduction with head-up tilt testing on longitudinal and transverse left ventricular mechanics: a study utilizing deformation volume analysis. AB - BACKGROUND: Left ventricular (LV) function is dependent on load, intrinsic contractility and relaxation with a variable impact on specific mechanics. Strain (epsilon) imaging allows the assessment of cardiac function; however, the direct relationship between volume and strain is currently unknown. The aim of this study was to establish the impact of preload reduction through head-up tilt (HUT) testing on simultaneous left ventricular (LV) longitudinal and transverse function and their respective contribution to volume change. METHODS: A focused transthoracic echocardiogram was performed on 10 healthy male participants (23 +/ 3 years) in the supine position and following 1 min and 5 min of HUT testing. Raw temporal longitudinal epsilon (Ls) and transverse epsilon (Ts) values were exported and divided into 5% increments across the cardiac cycle and corresponding LV volumes were traced at each 5% increment. This provided simultaneous LV longitudinal and transverse epsilon and volume loops (deformation volume analysis - DVA). RESULTS: There was a leftward shift of the epsilon-volume loop from supine to 1 min and 5 min of HUT (P < 0.001). Moreover, longitudinal shortening was reduced (P < 0.001) with a concomitant increase in transverse thickening from supine to 1 min, which was further augmented at 5 min (P = 0.018). CONCLUSIONS: Preload reduction occurs within 1 min of HUT but does not further reduce at 5 min. This decline is associated with a decrease in longitudinal epsilon and concomitant increase in transverse epsilon. Consequently, augmented transverse relaxation appears to be an important factor in the maintenance of LV filling in the setting of reduced preload. DVA provides information on the relative contribution of mechanics to a change in LV volume and may have a role in the assessment of clinical populations. PMID- 29339402 TI - Canonical Notch signaling is dispensable for adult steady-state and stress myelo erythropoiesis. AB - Although an essential role for canonical Notch signaling in generation of hematopoietic stem cells in the embryo and in thymic T-cell development is well established, its role in adult bone marrow (BM) myelopoiesis remains unclear. Some studies, analyzing myeloid progenitors in adult mice with inhibited Notch signaling, implicated distinct roles of canonical Notch signaling in regulation of progenitors for the megakaryocyte, erythroid, and granulocyte-macrophage cell lineages. However, these studies might also have targeted other pathways. Therefore, we specifically deleted, in adult BM, the transcription factor recombination signal-binding protein J kappa (Rbpj), through which canonical signaling from all Notch receptors converges. Notably, detailed progenitor staging established that canonical Notch signaling is fully dispensable for all investigated stages of megakaryocyte, erythroid, and myeloid progenitors in steady state unperturbed hematopoiesis, after competitive BM transplantation, and in stress-induced erythropoiesis. Moreover, expression of key regulators of these hematopoietic lineages and Notch target genes were unaffected by Rbpj deficiency in BM progenitor cells. PMID- 29339403 TI - A phase 1 study of azacitidine combined with chemotherapy in childhood leukemia: a report from the TACL consortium. PMID- 29339404 TI - Hif-1alpha and Hif-2alpha regulate hemogenic endothelium and hematopoietic stem cell formation in zebrafish. AB - During development, hematopoietic stem cells (HSCs) derive from specialized endothelial cells (ECs) called hemogenic endothelium (HE) via a process called endothelial-to-hematopoietic transition (EHT). Hypoxia-inducible factor-1alpha (HIF-1alpha) has been reported to positively modulate EHT in vivo, but current data indicate the existence of other regulators of this process. Here we show that in zebrafish, Hif-2alpha also positively modulates HSC formation. Specifically, HSC marker gene expression is strongly decreased in hif-1aa;hif-1ab (hif-1alpha) and in hif-2aa;hif-2ab (hif-2alpha) zebrafish mutants and morphants. Moreover, live imaging studies reveal a positive role for hif-1alpha and hif 2alpha in regulating HE specification. Knockdown of hif-2alpha in hif-1alpha mutants leads to a greater decrease in HSC formation, indicating that hif-1alpha and hif-2alpha have partially overlapping roles in EHT. Furthermore, hypoxic conditions, which strongly stimulate HSC formation in wild-type animals, have little effect in the combined absence of Hif-1alpha and Hif-2alpha function. In addition, we present evidence for Hif and Notch working in the same pathway upstream of EHT. Both notch1a and notch1b mutants display impaired EHT, which cannot be rescued by hypoxia. However, overexpression of the Notch intracellular domain in ECs is sufficient to rescue the hif-1alpha and hif-2alpha morphant EHT phenotype, suggesting that Notch signaling functions downstream of the Hif pathway during HSC formation. Altogether, our data provide genetic evidence that both Hif-1alpha and Hif-2alpha regulate EHT upstream of Notch signaling. PMID- 29339405 TI - Health care professionals' neckties as a source of transmission of bacteria to patients: a systematic review. AB - BACKGROUND: There is growing concern that neckties worn by health care professionals may contribute to infections contracted in health care settings. We evaluated the evidence for health-care-associated infections resulting from neckties and whether the evidence is sufficient to warrant a tieless policy in Canada. METHODS: We performed a systematic review to determine whether neckties worn by health care professionals colonize harmful pathogenic bacteria and whether they contribute to the spread of infection to patients in the inpatient or outpatient setting. We searched PubMed (1966 to 2017) and Embase (1974 to 2017). The level of evidence was appraised according to the Oxford Centre for Evidence-Based Medicine levels of evidence. We evaluated the quality of evidence and the risk of bias using the Jadad scale or the Newcastle-Ottawa Scale. RESULTS: We screened 1675 citations, of which 6 were ultimately included in the systematic review. Only 1 study gave level 1b evidence (randomized controlled trial). Neckties were more likely than shirt pockets to colonize bacteria. There is limited evidence that neckties may be contaminated with pathogenic bacteria (e.g., methicillin-resistant Staphylococcus aureus) and very limited evidence that contaminated neckties may transmit bacteria (in a controlled experimental setting to a mannequin). INTERPRETATION: There is no evidence of increased rates of health-care-associated infections related to the wearing of neckties by health care professionals. There is weak evidence that neckties are contaminated with pathogenic (and nonpathogenic) bacteria. The level of evidence was weak and the studies were heterogeneous. Evidence to support the need for a tieless dress code policy is lacking. PMID- 29339406 TI - Genetic Diversity, Molecular Phylogeny, and Selection Evidence of Jinchuan Yak Revealed by Whole-Genome Resequencing. AB - Jinchuan yak, a newly discovered yak breed, not only possesses a large proportion of multi-ribs but also exhibits many good characteristics, such as high meat production, milk yield, and reproductive performance. However, there is limited information about its overall genetic structure, relationship with yaks in other areas, and possible origins and evolutionary processes. In this study, 7,693,689 high-quality single-nucleotide polymorphisms were identified by resequencing the genome of Jinchuan yak. Principal component and population genetic structure analyses showed that Jinchuan yak could be distinguished as an independent population among the domestic yak population. Linkage disequilibrium analysis showed that the decay rate of Jinchuan yak was the lowest of the domestic yak breeds, indicating that the degree of domestication and selection intensity of Jinchuan yak were higher than those of other yak breeds. Combined with archaeological data, we speculated that the origin of domestication of Jinchuan yak was ~6000 yr ago (4000-10,000 yr ago). The quantitative dynamics of population growth history in Jinchuan yak was similar to that of other breeds of domestic and wild yaks, but was closer to that of the wild yak. No significant gene exchange between Jinchuan and other domestic yaks occurred. Compared with other domestic yaks, Jinchuan yak possessed 339 significantly and positively selected genes, several of which relate to physiological rhythm, histones, and the breed's excellent production characteristics. Our results provide a basis for the discovery of the evolution, molecular origin, and unique traits of Jinchuan yak. PMID- 29339407 TI - Genomic Identification and Functional Characterization of Essential Genes in Caenorhabditis elegans. AB - Using combined genetic mapping, Illumina sequencing, bioinformatics analyses, and experimental validation, we identified 60 essential genes from 104 lethal mutations in two genomic regions of Caenorhabditis elegans totaling ~14 Mb on chromosome III(mid) and chromosome V(left). Five of the 60 genes had not previously been shown to have lethal phenotypes by RNA interference depletion. By analyzing the regions around the lethal missense mutations, we identified four putative new protein functional domains. Furthermore, functional characterization of the identified essential genes shows that most are enzymes, including helicases, tRNA synthetases, and kinases in addition to ribosomal proteins. Gene Ontology analysis indicated that essential genes often encode for enzymes that conduct nucleic acid binding activities during fundamental processes, such as intracellular DNA replication, transcription, and translation. Analysis of essential gene shows that they have fewer paralogs, encode proteins that are in protein interaction hubs, and are highly expressed relative to nonessential genes. All these essential gene traits in C. elegans are consistent with those of human disease genes. Most human orthologs (90%) of the essential genes in this study are related to human diseases. Therefore, functional characterization of essential genes underlines their importance as proxies for understanding the biological functions of human disease genes. PMID- 29339408 TI - Development of the Swimbladder Surfactant System and Biogenesis of Lysosome Related Organelles Is Regulated by BLOS1 in Zebrafish. AB - Hermansky-Pudlak syndrome (HPS) is a human autosomal recessive disorder that is characterized by oculocutaneous albinism and a deficiency of the platelet storage pool resulting from defective biogenesis of lysosome-related organelles (LROs). To date, 10 HPS genes have been identified, three of which belong to the octamer complex BLOC-1 (biogenesis of lysosome-related organelles complex 1). One subunit of the BLOC-1 complex, BLOS1, also participates in the BLOC-1-related complex (BORC). Due to lethality at the early embryo stage in BLOS1 knockout mice, the function of BLOS1 in the above two complexes and whether it has a novel function are unclear. Here, we generated three zebrafish mutant lines with a BLOC-1 deficiency, in which melanin and silver pigment formation was attenuated as a result of mutation of bloc1s1, bloc1s2, and dtnbp1a, suggesting that they function in the same complex. In addition, mutations of bloc1s1 and bloc1s2 caused an accumulation of clusters of lysosomal vesicles at the posterior part of the tectum, representing a BORC-specific function in zebrafish. Moreover, bloc1s1 is highly expressed in the swimbladder during postembryonic stages and is required for positively regulating the expression of the genes, which is known to govern surfactant production and lung development in mammals. Our study identified BLOS1 as a crucial regulator of the surfactant system. Thus, the zebrafish swimbladder might be an easy system to screen and study genetic modifiers that control surfactant production and homeostasis. PMID- 29339409 TI - Impact of Homologous Recombination on Silent Chromatin in Saccharomyces cerevisiae. AB - Specialized chromatin domains repress transcription of genes within them and present a barrier to many DNA-protein interactions. Silent chromatin in the budding yeast Saccharomyces cerevisiae, akin to heterochromatin of metazoans and plants, inhibits transcription of PolII- and PolIII-transcribed genes, yet somehow grants access to proteins necessary for DNA transactions like replication and homologous recombination. In this study, we adapted a novel assay to detect even transient changes in the dynamics of transcriptional silencing at HML after it served as a template for homologous recombination. Homologous recombination specifically targeted to HML via double-strand-break formation at a homologous locus often led to transient loss of transcriptional silencing at HML Interestingly, many cells could template homology-directed repair at HML without an obligate loss of silencing, even in recombination events with extensive gene conversion tracts. In a population of cells that experienced silencing loss following recombination, transcription persisted for 2-3 hr after all double strand breaks were repaired. mRNA levels from cells that experienced recombination-induced silencing loss did not approach the amount of mRNA seen in cells lacking transcriptional silencing. Thus, silencing loss at HML after homologous recombination was short-lived and limited. PMID- 29339410 TI - Maintenance of Genome Integrity by Mi2 Homologs CHD-3 and LET-418 in Caenorhabditis elegans. AB - Meiotic recombination depends upon the tightly coordinated regulation of chromosome dynamics and is essential for the production of haploid gametes. Central to this process is the formation and repair of meiotic double-stranded breaks (DSBs), which must take place within the constraints of a specialized chromatin architecture. Here, we demonstrate a role for the nucleosome remodeling and deacetylase (NuRD) complex in orchestrating meiotic chromosome dynamics in Caenorhabditis elegans Our data reveal that the conserved Mi2 homologs Chromodomain helicase DNA-binding protein (CHD-3) and its paralog LET-418 facilitate meiotic progression by ensuring faithful repair of DSBs through homologous recombination. We discovered that loss of either CHD-3 or LET-418 results in elevated p53-dependent germ line apoptosis, which relies on the activation of the conserved checkpoint kinase CHK-1 Consistent with these findings, chd-3 and let-418 mutants produce a reduced number of offspring, indicating a role for Mi2 in forming viable gametes. When Mi2 function is compromised, persisting recombination intermediates are detected in late pachytene nuclei, indicating a failure in the timely repair of DSBs. Intriguingly, our data indicate that in Mi2 mutant germ lines, a subset of DSBs are repaired by nonhomologous end joining, which manifests as chromosomal fusions. We find that meiotic defects are exacerbated in Mi2 mutants lacking CKU 80, as evidenced by increased recombination intermediates, corpses, and defects in chromosomal integrity. Taken together, our findings support a model wherein the C. elegans Mi2 complex maintains genomic integrity through reinforcement of a chromatin landscape suitable for homology-driven repair mechanisms. PMID- 29339411 TI - Flagellin Glycoproteomics of the Periodontitis Associated Pathogen Selenomonas sputigena Reveals Previously Not Described O-glycans and Rhamnose Fragment Rearrangement Occurring on the Glycopeptides. AB - Flagellated, Gram-negative, anaerobic, crescent-shaped Selenomonas species are colonizers of the digestive system, where they act at the interface between health and disease. Selenomonas sputigena is also considered a potential human periodontal pathogen, but information on its virulence factors and underlying pathogenicity mechanisms is scarce. Here we provide the first report of a Selenomonas glycoprotein, showing that S. sputigena produces a diversely and heavily O-glycosylated flagellin C9LY14 as a major cellular protein, which carries various hitherto undescribed rhamnose- and N-acetylglucosamine linked O glycans in the range from mono- to hexasaccharides. A comprehensive glycomic and glycoproteomic assessment revealed extensive glycan macro- and microheterogeneity identified from 22 unique glycopeptide species. From the multiple sites of glycosylation, five were unambiguously identified on the 437-amino acid C9LY14 protein (Thr149, Ser182, Thr199, Thr259, and Ser334), the only flagellin protein identified. The O-glycans additionally showed modifications by methylation and putative acetylation. Some O-glycans carried hitherto undescribed residues/modifications as determined by their respective m/z values, reflecting the high diversity of native S. sputigena flagellin. We also found that monosaccharide rearrangement occurred during collision-induced dissociation (CID) of protonated glycopeptide ions. This effect resulted in pseudo Y1-glycopeptide fragment ions that indicated the presence of additional glycosylation sites on a single glycopeptide. CID oxonium ions and electron transfer dissociation, however, confirmed that just a single site was glycosylated, showing that glycan to-peptide rearrangement can occur on glycopeptides and that this effect is influenced by the molecular nature of the glycan moiety. This effect was most pronounced with disaccharides. This study is the first report on O-linked flagellin glycosylation in a Selenomonas species, revealing that C9LY14 is one of the most heavily glycosylated flagellins described to date. This study contributes to our understanding of the largely under-investigated surface properties of oral bacteria. The data have been deposited to the ProteomeXchange with identifier PXD005859. PMID- 29339412 TI - The Sequence-specific Peptide-binding Activity of the Protein Sulfide Isomerase AGR2 Directs Its Stable Binding to the Oncogenic Receptor EpCAM. AB - AGR2 is an oncogenic endoplasmic reticulum (ER)-resident protein disulfide isomerase. AGR2 protein has a relatively unique property for a chaperone in that it can bind sequence-specifically to a specific peptide motif (TTIYY). A synthetic TTIYY-containing peptide column was used to affinity-purify AGR2 from crude lysates highlighting peptide selectivity in complex mixtures. Hydrogen deuterium exchange mass spectrometry localized the dominant region in AGR2 that interacts with the TTIYY peptide to within a structural loop from amino acids 131 135 (VDPSL). A peptide binding site consensus of Tx[IL][YF][YF] was developed for AGR2 by measuring its activity against a mutant peptide library. Screening the human proteome for proteins harboring this motif revealed an enrichment in transmembrane proteins and we focused on validating EpCAM as a potential AGR2 interacting protein. AGR2 and EpCAM proteins formed a dose-dependent protein protein interaction in vitro Proximity ligation assays demonstrated that endogenous AGR2 and EpCAM protein associate in cells. Introducing a single alanine mutation in EpCAM at Tyr251 attenuated its binding to AGR2 in vitro and in cells. Hydrogen-deuterium exchange mass spectrometry was used to identify a stable binding site for AGR2 on EpCAM, adjacent to the TLIYY motif and surrounding EpCAM's detergent binding site. These data define a dominant site on AGR2 that mediates its specific peptide-binding function. EpCAM forms a model client protein for AGR2 to study how an ER-resident chaperone can dock specifically to a peptide motif and regulate the trafficking a protein destined for the secretory pathway. PMID- 29339413 TI - Proteotranscriptomic Analysis and Discovery of the Profile and Diversity of Toxin like Proteins in Centipede. AB - Centipedes are one of the oldest venomous animals and use their venoms as weapons to attack prey or protect themselves. Their venoms contain various components with different biomedical and pharmacological properties. However, little attention has been paid to the profiles and diversity of their toxin-like proteins/peptides. In this study, we used a proteotranscriptomic approach to uncover the diversity of centipede toxin-like proteins in Scolopendra subspinipes mutilans Nine hundred twenty-three and 6,736 peptides, which were separately isolated from venom and torso tissues, respectively, were identified by ESI-MS/MS and deduced from their transcriptomes. Finally, 1369 unique proteins were identified in the proteome, including 100 proteins that exhibited overlapping expression in venom and torso tissues. Of these proteins, at least 40 proteins were identified as venom toxin-like proteins. Meanwhile, transcriptome mining identified ~10-fold more toxin-like proteins and enabled the characterization of the precursor architecture of mature toxin-like peptides. Importantly, combined with proteomic and transcriptomic analyses, 25 toxin-like proteins/peptides (neurotoxins accounted for 50%) were expressed outside the venom gland and involved in gene recruitment processes. These findings highlight the extensive diversity of centipede toxin-like proteins and provide a new foundation for the medical-pharmaceutical use of centipede toxin-like proteins. Moreover, we are the first group to report the gene recruitment activity of venom toxin-like proteins in centipede, similar to snakes. PMID- 29339414 TI - Assembly of Methyl Coenzyme M Reductase in the Methanogenic Archaeon Methanococcus maripaludis. AB - Methyl coenzyme M reductase (MCR) is a complex enzyme that catalyzes the final step in biological methanogenesis. To better understand its assembly, the recombinant MCR from the thermophile Methanothermococcus okinawensis (rMCRok) was expressed in the mesophile Methanococcus maripaludis The rMCRok was posttranslationally modified correctly and contained McrD and the unique nickel tetrapyrrole coenzyme F430 Subunits of the native M. maripaludis (MCRmar) were largely absent, suggesting that the recombinant enzyme was formed by an assembly of cotranscribed subunits. Strong support for this hypothesis was obtained by expressing a chimeric operon comprising the His-tagged mcrA from M. maripaludis and the mcrBDCG from M. okinawensis in M. maripaludis The His-tagged purified rMCR then contained the M. maripaludis McrA and the M. okinawensis McrBDG. The present study prompted us to form a working model for MCR assembly, which can be further tested by the heterologous expression system established here.IMPORTANCE Approximately 1.6% of the net primary production of plants, algae, and cyanobacteria are processed by biological methane production in anoxic environments. This accounts for about 74% of the total global methane production, up to 25% of which is consumed by anaerobic oxidation of methane (AOM). Methyl coenzyme M reductase (MCR) is the key enzyme in both methanogenesis and AOM. MCR is assembled as a dimer of two heterotrimers, where posttranslational modifications and F430 cofactors are embedded in the active sites. However, this complex assembly process remains unknown. Here, we established a heterologous expression system for MCR to learn how MCR is assembled. PMID- 29339416 TI - Exploring the (Almost) Unknown: Archaeal Two-Component Systems. AB - Two-component systems (TCS) exist in bacteria and archaea. In contrast to the knowledge of bacterial TCSs, little information is available on their archaeal counterparts. In the current issue of Journal of Bacteriology, Galperin and coworkers present a bioinformatics analysis of TCS genes from archaeal genome sequences (M. Y. Galperin, K. S. Makarova, Y. I. Wolf, and E. V. Koonin, J Bacteriol 200:e00681-17, 2018, https://doi.org/10.1128/JB.00681-17). This study identifies different aspects in which TCS-mediated signaling differs in bacteria and archaea and forms a sound basis for the experimental design of studies to increase our knowledge of this poorly investigated protein family. PMID- 29339415 TI - Genome-Wide Identification by Transposon Insertion Sequencing of Escherichia coli K1 Genes Essential for In Vitro Growth, Gastrointestinal Colonizing Capacity, and Survival in Serum. AB - Escherichia coli K1 strains are major causative agents of invasive disease of newborn infants. The age dependency of infection can be reproduced in neonatal rats. Colonization of the small intestine following oral administration of K1 bacteria leads rapidly to invasion of the blood circulation; bacteria that avoid capture by the mesenteric lymphatic system and evade antibacterial mechanisms in the blood may disseminate to cause organ-specific infections such as meningitis. Some E. coli K1 surface constituents, in particular the polysialic acid capsule, are known to contribute to invasive potential, but a comprehensive picture of the factors that determine the fully virulent phenotype has not emerged so far. We constructed a library and constituent sublibraries of ~775,000 Tn5 transposon mutants of E. coli K1 strain A192PP and employed transposon-directed insertion site sequencing (TraDIS) to identify genes required for fitness for infection of 2-day-old rats. Transposon insertions were lacking in 357 genes following recovery on selective agar; these genes were considered essential for growth in nutrient-replete medium. Colonization of the midsection of the small intestine was facilitated by 167 E. coli K1 gene products. Restricted bacterial translocation across epithelial barriers precluded TraDIS analysis of gut-to blood and blood-to-brain transits; 97 genes were required for survival in human serum. This study revealed that a large number of bacterial genes, many of which were not previously associated with systemic E. coli K1 infection, are required to realize full invasive potential.IMPORTANCEEscherichia coli K1 strains cause life-threatening infections in newborn infants. They are acquired from the mother at birth and colonize the small intestine, from where they invade the blood and central nervous system. It is difficult to obtain information from acutely ill patients that sheds light on physiological and bacterial factors determining invasive disease. Key aspects of naturally occurring age-dependent human infection can be reproduced in neonatal rats. Here, we employ transposon-directed insertion site sequencing to identify genes essential for the in vitro growth of E. coli K1 and genes that contribute to the colonization of susceptible rats. The presence of bottlenecks to invasion of the blood and cerebrospinal compartments precluded insertion site sequencing analysis, but we identified genes for survival in serum. PMID- 29339417 TI - Repression of VvpM Protease Expression by Quorum Sensing and the cAMP-cAMP Receptor Protein Complex in Vibrio vulnificus. AB - Septicemia-causing Vibrio vulnificus produces at least three exoproteases, VvpE, VvpS, and VvpM, all of which participate in interactions with human cells. Expression of VvpE and VvpS is induced in the stationary phase by multiple transcription factors, including sigma factor S, SmcR, and the cAMP-cAMP receptor protein (cAMP-CRP) complex. Distinct roles of VvpM, such as induction of apoptosis, lead us to hypothesize VvpM expression is different from that of the other exoproteases. Its transcription, which was found to be independent of sigma S, is induced at the early exponential phase and then becomes negligible upon entry into the stationary phase. SmcR and CRP were studied regarding the control of vvpM expression. Transcription of vvpM was repressed by SmcR and cAMP-CRP complex individually, which specifically bound to the regions -2 to +20 and +6 to +27, respectively, relative to the vvpM transcription initiation site. Derepression of vvpM gene expression was 10- to 40-fold greater in an smcR crp double mutant than in single-gene mutants. Therefore, these results show that the expression of V. vulnificus exoproteases is differentially regulated, and in this way, distinct proteases can engage in specific interactions with a host.IMPORTANCE An opportunistic human pathogen, Vibrio vulnificus produces multiple extracellular proteases that are involved in diverse interactions with a host. The total exoproteolytic activity is detected mainly in the supernatants of the high-cell-density cultures. However, some proteolytic activity derived from a metalloprotease, VvpM, was present in the supernatants of the low-cell-density cultures sampled at the early growth period. In this study, we present the regulatory mechanism for VvpM expression via repression by at least two transcription factors. This type of transcriptional regulation is the exact opposite of those for expression of the other V. vulnificus exoproteases. Differential regulation of each exoprotease's production then facilitates the pathogen's participation in the distinct interactions with a host. PMID- 29339418 TI - An Evolutionary/Biochemical Connection Between Promoter- and Primer-Dependent Polymerases Revealed by Selective Evolution of Ligands by Exponential Enrichment (SELEX). AB - DNA polymerases (DNAPs) recognize 3' recessed termini on duplex DNA and carry out nucleotide catalysis. Unlike promoter-specific RNA polymerases (RNAPs), no sequence specificity is required for binding or initiation of catalysis. Despite this, previous results indicate that viral reverse transcriptases bind much more tightly to DNA primers that mimic the polypurine tract. In the current report, primer sequences that bind with high affinity to Taq and Klenow polymerases were identified using a modified Selective Evolution of Ligands by Exponential Enrichment (SELEX) approach. Two Taq-specific primers that bound ~10 (Taq1) and over 100 (Taq2) times more stably than controls to Taq were identified. Taq1 contained 8 nucleotides (5' -CACTAAAG-3') that matched the phage T3 RNAP "core" promoter. Both primers dramatically outcompeted primers with similar binding thermodynamics in PCR reactions. Similarly, exonuclease minus Klenow polymerase also selected a high affinity primer that contained a related core promoter sequence from phage T7 RNAP (5' -ACTATAG-3'). For both Taq and Klenow, even small modifications to the sequence resulted in large losses in binding affinity suggesting that binding was highly sequence-specific. The results are discussed in the context of possible effects on multi-primer (multiplex) PCR assays, molecular information theory, and the evolution of RNAPs and DNAPs.Importance This work further demonstrates that primer-dependent DNA polymerases can have strong sequence biases leading to dramatically tighter binding to specific sequences. These may be related to biological function, or be a consequences of the structural architecture of the enzyme. New sequence specificity for Taq and Klenow polymerases were uncovered and among them were sequences that contained the core promoter elements from T3 and T7 phage RNA polymerase promoters. This suggests the intriguing possibility that phage RNA polymerases exploited intrinsic binding affinities of ancestral DNA polymerases to develop their promotors. Conversely, DNA polymerases could have evolved from related RNA polymerases and retained the intrinsic binding preference despite there being no clear function for such a preference in DNA biology. PMID- 29339419 TI - LINC00152 down-regulated miR-193a-3p to enhance MCL1 expression and promote gastric cancer cells proliferation. AB - The present work aimed to probe into the effect of long non-coding RNA (lncRNA) LINC00152 on gastric cancer (GC) cells proliferation by regulating miR-193a-3p and its target gene MCL1 Transfected si-LINC00152 was used to down-regulate LINC00152, and cells proliferation was measured by the cell counting kit-8 (CCK 8) assay. Cell apoptosis and cell cycle were analyzed by flow cytometry (FCM). Besides, we also detected the potential functional effects of differential expression of LINC00152 in vivo using nude mouse xenograft model. We overexpressed and downexpressed miR-193a-3p to study the in vitro effect of miR 193a-3p on GC cells proliferation and vitality. And MCL1 was silenced by shRNA to investigate the effect of MCL1 on proliferation of GC cells. In this research, LINC00152 was proven to have a higher expression level in GC tissues than in the adjacent normal tissues. GC cells proliferation was inhibited after LINC00152 was down-regulated. LINC00152 inhibited the expression of miR-193a-3p, which negatively regulated MCL1 In addition, GC cells proliferation was inhibited by cell transfection with shRNA-MCL1, and enhanced by transfection with miR-193a-3p mimics. Our study suggested that LINC00152 was overexpressed in GC tissues, and it down-regulated miR-193a-3p to enhance MCL1 expression thereby promoting GC cells proliferation. PMID- 29339420 TI - LINC00673 rs11655237 C>T confers neuroblastoma susceptibility in Chinese population. AB - Neuroblastoma, which accounts for approximately 10% of all pediatric cancer related deaths, has become a therapeutic challenge and global burden attributed to poor outcomes and mortality rates of its high-risk form. Previous genome-wide association studies (GWASs) identified the LINC00673 rs11655237 C>T polymorphism to be associated with the susceptibility of several malignant tumors. However, the association between this polymorphism and neuroblastoma susceptibility is not clear. We genotyped LINC00673 rs11655237 C>T in 393 neuroblastoma patients in comparison with 812 age-, gender-, and ethnicity-matched healthy controls. We found a significant association between the LINC00673 rs11655237 C>T polymorphism and neuroblastoma risk (TT compared with CC: adjusted odds ratio (OR) =1.80, 95% confidence interval (CI) =1.06-3.06, P=0.029; TT/CT compared with CC: adjusted OR =1.31, 95% CI =1.02-1.67, P=0.033; and T compared with C: adjusted OR =1.29, 95% CI =1.06-1.58, P=0.013). Furthermore, stratified analysis indicated that the rs11655237 T allele carriers were associated with increased neuroblastoma risk for patients with tumor originating from the adrenal gland (adjusted OR =1.51, 95% CI =1.06-2.14, P=0.021) and International Neuroblastoma Staging System (INSS) stage IV disease (adjusted OR =1.60, 95% CI =1.12-2.30, P=0.011). In conclusion, we verified that the LINC00673 rs11655237 C>T polymorphism might be associated with neuroblastoma susceptibility. Prospective studies with a large sample size and different ethnicities are needed to validate our findings. PMID- 29339421 TI - HIF1A gene rs10873142 polymorphism is associated with risk of chronic obstructive pulmonary disease in a Chinese Han population: a case-control study. AB - Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term poor airflow. Recently, variants in the hypoxia inducible factor 1alpha (HIF1A) gene were found to be associated with COPD risk. The present study aimed to identify whether rs10873142 polymorphism (an intronic polymorphism) in HIF1A gene was related to COPD in a Chinese population. We genotyped HIF1A gene rs10873142 polymorphism in a case-control study with 235 COPD cases and 548 controls in a Chinese Han population. Odd ratios (ORs) and 95% confidence intervals (CIs) were estimated using the chi squared (chi2) test, genetic model analysis, and stratification analysis. In the genetic model analysis, we found that the TT genotype (TT compared with CC: OR: 1.63; 95% CI: 1.02-2.60; P=0.042) and T allele (T compared with C: OR: 1.29; 95%CI, 1.02-1.60; P=0.032) showed significant correlation with the risk of COPD. However, in stratification analyses of age, BMI, and forced expiratory volume in 1 s (FEV1)/FEV, we failed to find any association between HIF1A gene rs10873142 polymorphism with COPD risk. The present study supports that HIF1A gene rs10873142 polymorphism may be associated with increased risk of COPD in a Chinese Han population. To the best of our knowledge, this is the first case control study uncovering that the HIF1A gene rs10873142 polymorphism increases the risk of COPD in a Chinese Han population. PMID- 29339422 TI - The Role of Angiopoietin-like Protein 4 in Phenylephrine-induced Cardiomyocyte Hypertrophy. AB - Angiopoietin-like protein 4 (ANGPTL4) is a multifunctional secreted protein that can be induced by fasting, hypoxia and glucocorticoids. ANGPTL4 has been associated with a variety of diseases, however, the role of ANGPTL4 in cardiac hypertrophy remains poorly understood. In our study, we aimed to explore the effect of ANGPTL4 on phenylephrine (PE)-induced cardiomyocyte hypertrophy. Our results showed that knockdown of ANGPTL4 expression significantly exacerbated cardiomyocyte hypertrophy, as demonstrated by increased hypertrophic marker expression, including ANP and cell surface area. Moreover, significantly reduced fatty acid oxidation, as featured by decreased CPT-1 levels, was observed in hypertrophic cardiomyocytes following ANGPTL4 downregulation. Furthermore, knockdown of ANGPLT4 led to downregulated expression of PPARalpha, which is the key regulator of cardiac fatty acid oxidation. In addition, ANGPTL4 silencing promoted the activation of JNK1/2, and JNK1/2 signaling blockade could restore the level of PPARalpha and significantly ameliorate the ANGPTL4 knockdown-induced cardiomyocyte hypertrophy. Therefore, our study demonstrated that ANGPTL4 regulates PPARalpha through JNK1/2 signaling and is required for the inhibition of cardiomyocyte hypertrophy. PMID- 29339423 TI - Immune Protection against Lethal Fungal-Bacterial Intra-Abdominal Infections. AB - Polymicrobial intra-abdominal infections (IAIs) are clinically prevalent and cause significant morbidity and mortality, especially those involving fungi. Our laboratory developed a mouse model of IAI and demonstrated that intraperitoneal inoculation with Candida albicans or other virulent non-albicans Candida (NAC) species plus Staphylococcus aureus resulted in 70 to 80% mortality in 48 to 72 h due to robust local and systemic inflammation (sepsis). Surprisingly, inoculation with Candida dubliniensis or Candida glabrata with S. aureus resulted in minimal mortality, and rechallenge of these mice with lethal C. albicans/S. aureus (i.e., coninfection) resulted in >90% protection. The purpose of this study was to define requirements for C. dubliniensis/S. aureus-mediated protection and interrogate the mechanism of the protective response. Protection was conferred by C. dubliniensis alone or by killed C. dubliniensis plus live S. aureusS. aureus alone was not protective, and killed S. aureus compromised C. dubliniensis induced protection. C. dubliniensis/S. aureus also protected against lethal challenge by NAC plus S. aureus and could protect for a long-term duration (60 days between primary challenge and C. albicans/S. aureus rechallenge). Unexpectedly, mice deficient in T and B cells (Rag-1 knockouts [KO]) survived both the initial C. dubliniensis/S. aureus challenge and the C. albicans/S. aureus rechallenge, indicating that adaptive immunity did not play a role. Similarly, mice depleted of macrophages prior to rechallenge were also protected. In contrast, protection was associated with high numbers of Gr-1hi polymorphonuclear leukocytes (PMNLs) in peritoneal lavage fluid within 4 h of rechallenge, and in vivo depletion of Gr-1+ cells prior to rechallenge abrogated protection. These results suggest that Candida species can induce protection against a lethal C. albicans/S. aureus IAI that is mediated by PMNLs and postulated to be a unique form of trained innate immunity.IMPORTANCE Polymicrobial intra-abdominal infections are clinically devastating infections with high mortality rates, particularly those involving fungal pathogens, including Candida species. Even in patients receiving aggressive antimicrobial therapy, mortality rates remain unacceptably high. There are no available vaccines against IAI, which is complicated by the polymicrobial nature of the infection. IAI leads to lethal systemic inflammation (sepsis), which is difficult to target pharmacologically, as components of the inflammatory response are also needed to control the infection. Our studies demonstrate that prior inoculation with low-virulence Candida species provides strong protection against subsequent lethal infection with C. albicans and S. aureus Surprisingly, protection is long lived but not mediated by adaptive (specific) immunity. Instead, protection is dependent on cells of the innate immune system (nonspecific immunity) and provides protection against other virulent Candida species. This discovery implies that a form of trained innate immunity may be clinically effective against polymicrobial IAI. PMID- 29339424 TI - Clostridium sordellii Pathogenicity Locus Plasmid pCS1-1 Encodes a Novel Clostridial Conjugation Locus. AB - A major virulence factor in Clostridium sordellii-mediated infection is the toxin TcsL, which is encoded within a region of the genome called the pathogenicity locus (PaLoc). C. sordellii isolates carry the PaLoc on the pCS1 family of plasmids, of which there are four characterized members. Here, we determined the potential mobility of pCS1 plasmids and characterized a fifth unique pCS1 member. Using a derivative of the pCS1-1 plasmid from strain ATCC 9714 which had been marked with the ermB erythromycin resistance gene, conjugative transfer into a recipient C. sordellii isolate, R28058, was demonstrated. Bioinformatic analysis of pCS1-1 identified a novel conjugation gene cluster defined as the C. sordellii transfer (cst) locus. Interruption of genes within the cst locus resulted in loss of pCS1-1 transfer, which was restored upon complementation in trans These studies provided clear evidence that genes within the cst locus are essential for the conjugative transfer of pCS1-1. The cst locus is present on all pCS1 subtypes, and homologous loci were identified on toxin-encoding plasmids from Clostridium perfringens and Clostridium botulinum and also carried within genomes of Clostridium difficile isolates, indicating that it is a widespread clostridial conjugation locus. The results of this study have broad implications for the dissemination of toxin genes and, potentially, antibiotic resistance genes among members of a diverse range of clostridial pathogens, providing these microorganisms with a survival advantage within the infected host.IMPORTANCEC. sordellii is a bacterial pathogen that causes severe infections in humans and animals, with high mortality rates. While the pathogenesis of C. sordellii infections is not well understood, it is known that the toxin TcsL is an important virulence factor. Here, we have shown the ability of a plasmid carrying the tcsL gene to undergo conjugative transfer between distantly related strains of C. sordellii, which has far-reaching implications for the ability of C. sordellii to acquire the capacity to cause disease. Plasmids that carry tcsL encode a previously uncharacterized conjugation locus, and individual genes within this locus were shown to be required for conjugative transfer. Furthermore, homologues on toxin plasmids from other clostridial species were identified, indicating that this region represents a novel clostridial conjugation locus. The results of this study have broad implications for the dissemination of virulence genes among members of a diverse range of clostridial pathogens. PMID- 29339426 TI - Gut Microbial Glycerol Metabolism as an Endogenous Acrolein Source. AB - Acrolein is a highly reactive electrophile causing toxic effects, such as DNA and protein adduction, oxidative stress, endoplasmic reticulum stress, immune dysfunction, and membrane damage. This Opinion/Hypothesis provides an overview of endogenous and exogenous acrolein sources, acrolein's mode of action, and its metabolic fate. Recent reports underpin the finding that gut microbial glycerol metabolism leading to the formation of reuterin is an additional source of endogenous acrolein. Reuterin is an antimicrobial multicomponent system consisting of 3-hydroxypropionaldehyde, its dimer and hydrate, and also acrolein. The major conclusion is that gut microbes can metabolize glycerol to reuterin and that this transformation occurs in vivo Given the known toxicity of acrolein, the observation that acrolein is formed in the gut necessitates further investigations on functional relevance for gut microbiota and the host. PMID- 29339425 TI - Secondary Metabolism and Interspecific Competition Affect Accumulation of Spontaneous Mutants in the GacS-GacA Regulatory System in Pseudomonas protegens. AB - Secondary metabolites are synthesized by many microorganisms and provide a fitness benefit in the presence of competitors and predators. Secondary metabolism also can be costly, as it shunts energy and intermediates from primary metabolism. In Pseudomonas spp., secondary metabolism is controlled by the GacS GacA global regulatory system. Intriguingly, spontaneous mutations in gacS or gacA (Gac- mutants) are commonly observed in laboratory cultures. Here we investigated the role of secondary metabolism in the accumulation of Gac- mutants in Pseudomonas protegens strain Pf-5. Our results showed that secondary metabolism, specifically biosynthesis of the antimicrobial compound pyoluteorin, contributes significantly to the accumulation of Gac- mutants. Pyoluteorin biosynthesis, which poses a metabolic burden on the producer cells, but not pyoluteorin itself, leads to the accumulation of the spontaneous mutants. Interspecific competition also influenced the accumulation of the Gac- mutants: a reduced proportion of Gac- mutants accumulated when P. protegens Pf-5 was cocultured with Bacillus subtilis than in pure cultures of strain Pf-5. Overall, our study associated a fitness trade-off with secondary metabolism, with metabolic costs versus competitive benefits of production influencing the evolution of P. protegens, assessed by the accumulation of Gac- mutants.IMPORTANCE Many microorganisms produce antibiotics, which contribute to ecologic fitness in natural environments where microbes constantly compete for resources with other organisms. However, biosynthesis of antibiotics is costly due to the metabolic burdens of the antibiotic-producing microorganism. Our results provide an example of the fitness trade-off associated with antibiotic production. Under noncompetitive conditions, antibiotic biosynthesis led to accumulation of spontaneous mutants lacking a master regulator of antibiotic production. However, relatively few of these spontaneous mutants accumulated when a competitor was present. Results from this work provide information on the evolution of antibiotic biosynthesis and provide a framework for their discovery and regulation. PMID- 29339427 TI - Pandemic Paradox: Early Life H2N2 Pandemic Influenza Infection Enhanced Susceptibility to Death during the 2009 H1N1 Pandemic. AB - Recent outbreaks of H5, H7, and H9 influenza A viruses in humans have served as a vivid reminder of the potentially devastating effects that a novel pandemic could exert on the modern world. Those who have survived infections with influenza viruses in the past have been protected from subsequent antigenically similar pandemics through adaptive immunity. For example, during the 2009 H1N1 "swine flu" pandemic, those exposed to H1N1 viruses that circulated between 1918 and the 1940s were at a decreased risk for mortality as a result of their previous immunity. It is also generally thought that past exposures to antigenically dissimilar strains of influenza virus may also be beneficial due to cross reactive cellular immunity. However, cohorts born during prior heterosubtypic pandemics have previously experienced elevated risk of death relative to surrounding cohorts of the same population. Indeed, individuals born during the 1890 H3Nx pandemic experienced the highest levels of excess mortality during the 1918 "Spanish flu." Applying Serfling models to monthly mortality and influenza circulation data between October 1997 and July 2014 in the United States and Mexico, we show corresponding peaks in excess mortality during the 2009 H1N1 "swine flu" pandemic and during the resurgent 2013-2014 H1N1 outbreak for those born at the time of the 1957 H2N2 "Asian flu" pandemic. We suggest that the phenomenon observed in 1918 is not unique and points to exposure to pandemic influenza early in life as a risk factor for mortality during subsequent heterosubtypic pandemics.IMPORTANCE The relatively low mortality experienced by older individuals during the 2009 H1N1 influenza virus pandemic has been well documented. However, reported situations in which previous influenza virus exposures have enhanced susceptibility are rare and poorly understood. One such instance occurred in 1918-when those born during the heterosubtypic 1890 H3Nx influenza virus pandemic experienced the highest levels of excess mortality. Here, we demonstrate that this phenomenon was not unique to the 1918 H1N1 pandemic but that it also occurred during the contemporary 2009 H1N1 pandemic and 2013-2014 H1N1-dominated season for those born during the heterosubtypic 1957 H2N2 "Asian flu" pandemic. These data highlight the heretofore underappreciated phenomenon that, in certain instances, prior exposure to pandemic influenza virus strains can enhance susceptibility during subsequent pandemics. These results have important implications for pandemic risk assessment and should inform laboratory studies aimed at uncovering the mechanism responsible for this effect. PMID- 29339428 TI - Mucosal Infections and Invasive Potential of Nonencapsulated Streptococcus pneumoniae Are Enhanced by Oligopeptide Binding Proteins AliC and AliD. AB - Nonencapsulated Streptococcus pneumoniae (NESp) is an emerging human pathogen that colonizes the nasopharynx and is associated with noninvasive diseases such as otitis media (OM), conjunctivitis, and nonbacteremic pneumonia. Since capsule expression was previously thought to be necessary for establishment of invasive pneumococcal disease (IPD), serotype-specific polysaccharide capsules are targeted by currently licensed pneumococcal vaccines. Yet, NESp expressing oligopeptide binding proteins AliC and AliD have been isolated during IPD. Thus, we hypothesize AliC and AliD are major NESp virulence determinants that facilitate persistence and development of IPD. Our study reveals that NESp expressing AliC and AliD have intensified virulence compared to isogenic mutants. Specifically, we demonstrate AliC and AliD enhance murine nasopharyngeal colonization and pulmonary infection and are required for OM in a chinchilla model. Furthermore, AliC and AliD increase pneumococcal survival in chinchilla whole blood and aid in resistance to killing by human leukocytes. Comparative proteome analysis revealed significant alterations in protein levels when AliC and AliD were absent. Virulence-associated proteins, including a pneumococcal surface protein C variant (CbpAC), were significantly downregulated, while starvation response indicators were upregulated in the double mutant relative to wild-type levels. We also reveal that differentially expressed CbpAC was essential for NESp adherence to epithelial cells, virulence during OM, reduction of C3b deposition on the NESp surface, and binding to nonspecific IgA. Altogether, the rise in NESp prevalence urges the need to understand how NESp establishes disease and persists in a host. This study highlights the roles of AliC, AliD, and CbpAC in the pathogenesis of NESp.IMPORTANCE Despite the effective, widespread use of licensed pneumococcal vaccines over many decades, pneumococcal infections remain a worldwide burden resulting in high morbidity and mortality. NESp subpopulations are rapidly rising in the wake of capsule-targeted vaccine strategies, yet there is very little knowledge on NESp pathogenic potential and virulence mechanisms. Although NESp lacks a protective capsule, NESp lineages expressing AliC and AliD have been associated with systemic infections. Furthermore, higher antibiotic resistance rates and transformation efficiencies associated with emerging NESp threaten treatment strategies needed to control pneumococcal infections and transmission. Elucidating how NESp survives within a host and establishes disease is necessary for development of broadened pneumococcal prevention methods. Our study identifies virulence determinants and host survival mechanisms employed by NESp with a high pathogenic potential. Moreover, our study also identifies virulence determinants shared by NESp and encapsulated strains that may serve as broad prevention and therapeutic targets. PMID- 29339430 TI - Simultaneous Binding of Multiple EF-Tu Copies to Translating Ribosomes in Live Escherichia coli. AB - In bacteria, elongation factor Tu is a translational cofactor that forms ternary complexes with aminoacyl-tRNA (aa-tRNA) and GTP. Binding of a ternary complex to one of four flexible L7/L12 units on the ribosome tethers a charged tRNA in close proximity to the ribosomal A site. Two sequential tests for a match between the aa-tRNA anticodon and the current mRNA codon then follow. Because one elongation cycle can occur in as little as 50 ms and the vast majority of aa-tRNA copies are not cognate with the current mRNA codon, this testing must occur rapidly. We present a single-molecule localization and tracking study of fluorescently labeled EF-Tu in live Escherichia coli Imaging at 2 ms/frame distinguishes 60% slowly diffusing EF-Tu copies (assigned as transiently bound to translating ribosome) from 40% rapidly diffusing copies (assigned as a mixture of free ternary complexes and free EF-Tu). Combining these percentages with copy number estimates, we infer that the four L7/L12 sites are essentially saturated with ternary complexes in vivo. The results corroborate an earlier inference that all four sites can simultaneously tether ternary complexes near the A site, creating a high local concentration that may greatly enhance the rate of testing of aa tRNAs. Our data and a combinatorial argument both suggest that the initial recognition test for a codon-anticodon match occurs in less than 1 to 2 ms per aa tRNA copy. The results refute a recent study (A. Plochowietz, I. Farrell, Z. Smilansky, B. S. Cooperman, and A. N. Kapanidis, Nucleic Acids Res 45:926-937, 2016, https://doi.org/10.1093/nar/gkw787) of tRNA diffusion in E. coli that inferred that aa-tRNAs arrive at the ribosomal A site as bare monomers, not as ternary complexes.IMPORTANCE Ribosomes catalyze translation of the mRNA codon sequence into the corresponding sequence of amino acids within the nascent polypeptide chain. Polypeptide elongation can be as fast as 50 ms per added amino acid. Each amino acid arrives at the ribosome as a ternary complex comprising an aminoacyl-tRNA (aa-tRNA), an elongation factor called EF-Tu, and GTP. There are 43 different aa-tRNAs in use, only one of which typically matches the current mRNA codon. Thus, ternary complexes must be tested very rapidly. Here we use fluorescence-based single-molecule methods that locate and track single EF-Tu copies in E. coli Fast and slow diffusive behavior determines the fraction of EF Tu copies that are ribosome bound. We infer simultaneous tethering of ~4 ternary complexes to the ribosome, which may facilitate rapid initial testing for codon matching on a time scale of less than 1 to 2 ms per aa-tRNA. PMID- 29339429 TI - The Biochemistry of Sensing: Enteric Pathogens Regulate Type III Secretion in Response to Environmental and Host Cues. AB - Enteric pathogens employ sophisticated strategies to colonize and infect mammalian hosts. Gram-negative bacteria, such as Escherichia coli, Salmonella, and Campylobacter jejuni, are among the leading causes of gastrointestinal tract infections worldwide. The virulence strategies of many of these Gram-negative pathogens rely on type III secretion systems (T3SSs), which are macromolecular syringes that translocate bacterial effector proteins directly into the host cytosol. However, synthesis of T3SS proteins comes at a cost to the bacterium in terms of growth rate and fitness, both in the environment and within the host. Therefore, expression of the T3SS must be tightly regulated to occur at the appropriate time and place during infection. Enteric pathogens have thus evolved regulatory mechanisms to control expression of their T3SSs in response to specific environmental and host cues. These regulatory cascades integrate multiple physical and chemical signals through complex transcriptional networks. Although the power of bacterial genetics has allowed elucidation of many of these networks, the biochemical interactions between signal and sensor that initiate the signaling cascade are often poorly understood. Here, we review the physical and chemical signals that Gram-negative enteric pathogens use to regulate T3SS expression during infection. We highlight the recent structural and functional studies that have elucidated the biochemical properties governing both the interaction between sensor and signal and the mechanisms of signal transduction from sensor to downstream transcriptional networks. PMID- 29339431 TI - Molecular Insights into Function and Competitive Inhibition of Pseudomonas aeruginosa Multiple Virulence Factor Regulator. AB - New approaches to antimicrobial drug discovery are urgently needed to combat intractable infections caused by multidrug-resistant (MDR) bacteria. Multiple virulence factor regulator (MvfR or PqsR), a Pseudomonas aeruginosa quorum sensing transcription factor, regulates functions important in both acute and persistent infections. Recently identified non-ligand-based benzamine benzimidazole (BB) inhibitors of MvfR suppress both acute and persistent P. aeruginosa infections in mice without perturbing bacterial growth. Here, we elucidate the crystal structure of the MvfR ligand binding domain (LBD) in complex with one potent BB inhibitor, M64. Structural analysis indicated that M64 binds, like native ligands, to the MvfR hydrophobic cavity. A hydrogen bond and pi interaction were found to be important for MvfR-M64 affinity. Surface plasmon resonance analysis demonstrated that M64 is a competitive inhibitor of MvfR. Moreover, a protein engineering approach revealed that Gln194 and Tyr258 are critical for the interaction between MvfR and M64. Random mutagenesis of the full length MvfR protein identified a single-amino-acid substitution, I68F, at a DNA binding linker domain that confers M64 insensitivity. In the presence of M64, I68F but not the wild-type (WT) MvfR protein retained DNA binding ability. Our findings strongly suggest that M64 promotes conformational change at the DNA binding domain of MvfR and that the I68F mutation may compensate for this change, indicating allosteric inhibition. This work provides critical new insights into the molecular mechanism of MvfR function and inhibition that could aid in the optimization of anti-MvfR compounds and improve our understanding of MvfR regulation.IMPORTANCEPseudomonas aeruginosa is an opportunistic Gram-negative pathogen that causes serious acute, persistent, and relapsing infections. New approaches to antimicrobial drug discovery are urgently needed to combat intractable infections caused by this pathogen. The Pseudomonas aeruginosa quorum sensing transcription factor MvfR regulates functions important in both acute and persistent infections. We used recently identified inhibitors of MvfR to perform structural studies and reveal important insights that would benefit the optimization of anti-MvfR compounds. Altogether, the results reported here provide critical detailed mechanistic insights into the function of MvfR domains that may benefit the optimization of the chemical, pharmacological, and safety properties of MvfR antagonist series. PMID- 29339432 TI - Deregulation of HDAC5 by Viral Interferon Regulatory Factor 3 Plays an Essential Role in Kaposi's Sarcoma-Associated Herpesvirus-Induced Lymphangiogenesis. AB - Kaposi's sarcoma-associated herpesvirus (KSHV) is the etiologic agent for Kaposi's sarcoma (KS), which is one of the most common HIV-associated neoplasms. The endothelium is the thin layer of squamous cells where vascular blood endothelial cells (BECs) line the interior surface of blood vessels and lymphatic endothelial cells (LECs) are in direct contact with lymphatic vessels. The KS lesions contain a prominent compartment of neoplastic spindle morphology cells that are closely related to LECs. Furthermore, while KSHV can infect both LECs and BECs in vitro, its infection activates genetic programming related to lymphatic endothelial cell fate, suggesting that lymphangiogenic pathways are involved in KSHV infection and malignancy. Here, we report for the first time that viral interferon regulatory factor 3 (vIRF3) is readily detected in over 40% of KS lesions and that vIRF3 functions as a proangiogenic factor, inducing hypersprouting formation and abnormal growth in a LEC-specific manner. Mass spectrometry analysis revealed that vIRF3 interacted with histone deacetylase 5 (HDAC5), which is a signal-responsive regulator for vascular homeostasis. This interaction blocked the phosphorylation-dependent cytosolic translocation of HDAC5 and ultimately altered global gene expression in LECs but not in BECs. Consequently, vIRF3 robustly induced spindle morphology and hypersprouting formation of LECs but not BECs. Finally, KSHV infection led to the hypersprouting formation of LECs, whereas infection with a DeltavIRF3 mutant did not do so. Collectively, our data indicate that vIRF3 alters global gene expression and induces a hypersprouting formation in an HDAC5-binding-dependent and LEC-specific manner, ultimately contributing to KSHV-associated pathogenesis.IMPORTANCE Several lines of evidences indicate that KSHV infection of LECs induces pathological lymphangiogenesis and that the results resemble KS-like spindle morphology. However, the underlying molecular mechanism remains unclear. Here, we demonstrated that KSHV vIRF3 is readily detected in over 40% of various KS lesions and functions as a potent prolymphangiogenic factor by blocking the phosphorylation-dependent cytosolic translocation of HDAC5, which in turn modulates global gene expression in LECs. Consequently, vIRF3-HDAC5 interaction contributes to virus-induced lymphangiogenesis. The results of this study suggest that KSHV vIRF3 plays a crucial role in KSHV-induced malignancy. PMID- 29339433 TI - Five-Year Mortality After Transient Ischemic Attack: Focus on Cardiometabolic Comorbidity and Hospital Readmission. AB - BACKGROUND AND PURPOSE: We aimed at providing estimates of mortality associated with cardiometabolic comorbidity and incident readmission from cardiometabolic as compared with noncardiometabolic conditions after a first transient ischemic attack. METHODS: Between 2000 and 2015, patients hospitalized for a first transient ischemic attack were examined for cardiometabolic comorbidities (diabetes mellitus, coronary artery disease, heart failure, and atrial fibrillation), 5-year incident hospitalization, and time to death. RESULTS: Of 251 patients with transient ischemic attack, 134 (53%) had at least 1 and 55 (22%) had at least 2 cardiometabolic conditions. By 5 years, 491 readmissions (134 [27%] cardiometabolic and 357 [73%] noncardiometabolic) and 75 deaths (27 [36%] cardiometabolic and 47 [64%] noncardiometabolic) were observed. Mortality was increased with any concurrent cardiometabolic comorbidity (hazard ratio, 1.89; 95% confidence interval, 1.17-3.03; P=0.0089) with multiplicative mortality risk from a combination of coronary artery disease and heart failure. Each hospitalization was associated with a 1.5-fold risk of death (95% confidence interval, 1.37-1.64; P<0.0001). Risk of cardiometabolic and noncardiometabolic mortality was correlated with the corresponding category-specific readmission. CONCLUSIONS: Among patients hospitalized for first transient ischemic attack, 5 year mortality is associated with concurrent cardiometabolic comorbidity and rates of subsequent hospitalization. PMID- 29339434 TI - Cerebrovascular Outcomes With Proton Pump Inhibitors and Thienopyridines: A Systematic Review and Meta-Analysis. AB - BACKGROUND AND PURPOSE: Pharmacokinetic and prior studies on thienopyridine and proton pump inhibitors (PPI) coadministration provide conflicting data for cardiovascular outcomes, whereas there is no established evidence on the association of concomitant use of PPI and thienopyridines with adverse cerebrovascular outcomes. METHODS: We conducted a systematic review and meta analysis of randomized controlled trials and cohort studies from inception to July 2017, reporting following outcomes among patients treated with thienopyridine and PPI versus thienopyridine alone (1) ischemic stroke, (2) combined ischemic or hemorrhagic stroke, (3) composite outcome of stroke, myocardial infarction (MI), and cardiovascular death, (4) MI, (5) all-cause mortality, and (6) major or minor bleeding events. After the unadjusted analyses of risk ratios, we performed additional analyses of studies reporting hazard ratios adjusted for potential confounders. RESULTS: We identified 22 studies (12 randomized controlled trials and 10 cohort studies) comprising 131 714 patients. Concomitant use of PPI with thienopyridines was associated with increased risk of ischemic stroke (risk ratio, 1.74; 95% confidence interval [CI], 1.41-2.16; P<0.001), composite stroke/MI/cardiovascular death (risk ratio, 1.14; 95% CI, 1.01-1.29; P=0.04), and MI (risk ratio, 1.19; 95% CI, 1.00-1.40; P=0.05). Likewise, in adjusted analyses concomitant use of PPI with thienopyridines was again associated with increased risk of stroke (hazard ratios adjusted, 1.30; 95% CI, 1.04-1.61; P=0.02), composite stroke/MI/cardiovascular death (hazard ratios adjusted, 1.23; 95% CI, 1.03-1.47; P=0.02), but not with MI (hazard ratios adjusted, 1.19; 95% CI, 0.93-1.52; P=0.16). CONCLUSIONS: Co-prescription of PPI and thienopyridines increases the risk of incident ischemic strokes and composite stroke/MI/cardiovascular death. Our findings corroborate the current guidelines for PPI deprescription and pharmacovigilance, especially in patients treated with thienopyridines. PMID- 29339436 TI - Rewired Notch/p53 by Numb'ing Mdm2. AB - Although numerous pathways are known to control the tumor suppressor protein p53, coordinated regulation of the p53-Notch axis by Numb may have an even more remarkable impact. In this issue, Colaluca at al. (2018. J. Cell Biol. https://doi.org/10.1083/jcb.201709092) reveal an unexpected role of a newly characterized Numb splice variant in the regulation of p53, which may have significant implications for therapeutic intervention in breast cancer. PMID- 29339435 TI - Corrected and Republished from: The COP9 Signalosome Interacts with and Regulates Interferon Regulatory Factor 5 Protein Stability. AB - The transcription factor interferon regulatory factor 5 (IRF5) exerts crucial functions in the regulation of host immunity against extracellular pathogens, DNA damage-induced apoptosis, death receptor signaling, and macrophage polarization. Tight regulation of IRF5 is thus warranted for an efficient response to extracellular stressors and for limiting autoimmune and inflammatory responses. Here we report that the COP9 signalosome (CSN), a general modulator of diverse cellular and developmental processes, associates constitutively with IRF5 and promotes its protein stability. The constitutive CSN/IRF5 interaction was identified using proteomics and confirmed by endogenous immunoprecipitations. The CSN/IRF5 interaction occurred on the carboxyl and amino termini of IRF5; a single internal deletion (Delta455-466) was found to significantly reduce IRF5 protein stability. CSN3 was identified as a direct interacting partner of IRF5, and knockdown of this subunit with small interfering RNAs (siRNAs) resulted in enhanced degradation. Degradation was further augmented by knockdown of CSN1 and CSN3 together. The ubiquitin E1 inhibitor UBEI-41 or the proteasome inhibitor MG132 prevented IRF5 degradation, supporting that its stability is regulated by the ubiquitin-proteasome system. Importantly, activation of IRF5 by the death receptor ligand tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) resulted in enhanced degradation via loss of the CSN/IRF5 interaction. This study defines the CSN as a new interacting partner of IRF5 that controls its stability. PMID- 29339437 TI - SPR2 protects minus ends to promote severing and reorientation of plant cortical microtubule arrays. AB - The cortical microtubule arrays of higher plants are organized without centrosomes and feature treadmilling polymers that are dynamic at both ends. The control of polymer end stability is fundamental for the assembly and organization of cytoskeletal arrays, yet relatively little is understood about how microtubule minus ends are controlled in acentrosomal microtubule arrays, and no factors have been identified that act at the treadmilling minus ends in higher plants. Here, we identify Arabidopsis thaliana SPIRAL2 (SPR2) as a protein that tracks minus ends and protects them against subunit loss. SPR2 function is required to facilitate the rapid reorientation of plant cortical arrays as stimulated by light perception, a process that is driven by microtubule severing to create a new population of microtubules. Quantitative live-cell imaging and computer simulations reveal that minus protection by SPR2 acts by an unexpected mechanism to promote the lifetime of potential SPR2 severing sites, increasing the likelihood of severing and thus the rapid amplification of the new microtubule array. PMID- 29339438 TI - Quantifying exosome secretion from single cells reveals a modulatory role for GPCR signaling. AB - Exosomes are small endosome-derived extracellular vesicles implicated in cell cell communication and are secreted by living cells when multivesicular bodies (MVBs) fuse with the plasma membrane (PM). Current techniques to study exosome physiology are based on isolation procedures after secretion, precluding direct and dynamic insight into the mechanics of exosome biogenesis and the regulation of their release. In this study, we propose real-time visualization of MVB-PM fusion to overcome these limitations. We designed tetraspanin-based pH-sensitive optical reporters that detect MVB-PM fusion using live total internal reflection fluorescence and dynamic correlative light-electron microscopy. Quantitative analysis demonstrates that MVB-PM fusion frequency is reduced by depleting the target membrane SNAREs SNAP23 and syntaxin-4 but also can be induced in single cells by stimulation of the histamine H1 receptor (H1HR). Interestingly, activation of H1R1 in HeLa cells increases Ser110 phosphorylation of SNAP23, promoting MVB-PM fusion and the release of CD63-enriched exosomes. Using this single-cell resolution approach, we highlight the modulatory dynamics of MVB exocytosis that will help to increase our understanding of exosome physiology and identify druggable targets in exosome-associated pathologies. PMID- 29339439 TI - IDH1/2 Mutations Sensitize Acute Myeloid Leukemia to PARP Inhibition and This Is Reversed by IDH1/2-Mutant Inhibitors. AB - Purpose: Somatic mutations in IDH1/2 occur in approximately 20% of patients with myeloid neoplasms, including acute myeloid leukemia (AML). IDH1/2MUT enzymes produce D-2-hydroxyglutarate (D2HG), which associates with increased DNA damage and improved responses to chemo/radiotherapy and PARP inhibitors in solid tumor cells. Whether this also holds true for IDH1/2MUT AML is not known.Experimental Design: Well-characterized primary IDH1MUT, IDH2MUT, and IDH1/2WT AML cells were analyzed for DNA damage and responses to daunorubicin, ionizing radiation, and PARP inhibitors.Results:IDH1/2MUT caused increased DNA damage and sensitization to daunorubicin, irradiation, and the PARP inhibitors olaparib and talazoparib in AML cells. IDH1/2MUT inhibitors protected against these treatments. Combined treatment with a PARP inhibitor and daunorubicin had an additive effect on the killing of IDH1/2MUT AML cells. We provide evidence that the therapy sensitivity of IDH1/2MUT cells was caused by D2HG-mediated downregulation of expression of the DNA damage response gene ATM and not by altered redox responses due to metabolic alterations in IDH1/2MUT cells.Conclusions:IDH1/2MUT AML cells are sensitive to PARP inhibitors as monotherapy but especially when combined with a DNA-damaging agent, such as daunorubicin, whereas concomitant administration of IDH1/2MUT inhibitors during cytotoxic therapy decrease the efficacy of both agents in IDH1/2MUT AML. These results advocate in favor of clinical trials of PARP inhibitors either or not in combination with daunorubicin in IDH1/2MUT AML. Clin Cancer Res; 24(7); 1705-15. (c)2018 AACR. PMID- 29339441 TI - Allele-Specific Droplet Digital PCR Combined with a Next-Generation Sequencing Based Algorithm for Diagnostic Copy Number Analysis in Genes with High Homology: Proof of Concept Using Stereocilin. AB - BACKGROUND: Copy number variants (CNVs) can substantially contribute to the pathogenic variant spectrum in several disease genes. The detection of this type of variant is complicated in genes with high homology to other genomic sequences, yet such genomics regions are more likely to lead to CNVs, making it critical to address detection in these settings. METHODS: We developed a copy number analysis approach for high homology genes/regions that consisted of next-generation sequencing (NGS)-based dosage analysis accompanied by allele-specific droplet digital PCR (ddPCR) confirmatory testing. We applied this approach to copy number analysis in STRC, a gene with 98.9% homology to a nonfunctional pseudogene, pSTRC, and characterized its accuracy in detecting different copy number states by use of known samples. RESULTS: Using a cohort of 517 patients with hearing loss, we prospectively demonstrated the clinical utility of the approach, which contributed 30 of the 122 total positives (6%) to the diagnostic yield, increasing the overall yield from 17.6% to 23.6%. Positive STRC genotypes included homozygous (n = 15) or compound heterozygous (n = 8) deletions, or heterozygous deletions in trans with pathogenic sequence variants (n = 7). Finally, this approach limited ddPCR testing to cases with NGS copy number findings, thus markedly reducing the number of costly and laborious, albeit specific, ddPCR tests. CONCLUSIONS: NGS-based CNV detection followed by allele specific ddPCR confirmatory testing is a reliable and affordable approach for copy number analysis in medically relevant genes with homology issues. PMID- 29339440 TI - Repurposing Tin Mesoporphyrin as an Immune Checkpoint Inhibitor Shows Therapeutic Efficacy in Preclinical Models of Cancer. AB - Purpose: Unprecedented clinical outcomes have been achieved in a variety of cancers by targeting immune checkpoint molecules. This preclinical study investigates heme oxygenase-1 (HO-1), an immunosuppressive enzyme that is expressed in a wide variety of cancers, as a potential immune checkpoint target in the context of a chemotherapy-elicited antitumor immune response. We evaluate repurposing tin mesoporphyrin (SnMP), which has demonstrated safety and efficacy targeting hepatic HO in the clinic for the treatment of hyperbilirubinemia, as an immune checkpoint blockade therapy for the treatment of cancer.Experimental Design: SnMP and genetic inactivation of myeloid HO-1 were evaluated alongside 5 fluorouracil in an aggressive spontaneous murine model of breast cancer (MMTV PyMT). Single-cell RNA sequencing analysis, tumor microarray, and clinical survival data from breast cancer patients were used to support the clinical relevance of our observations.Results: We demonstrate that SnMP inhibits immune suppression of chemotherapy-elicited CD8+ T cells by targeting myeloid HO-1 activity in the tumor microenvironment. Microarray and survival data from breast cancer patients reveal that HO-1 is a poor prognostic factor in patients receiving chemotherapy. Single-cell RNA-sequencing analysis suggests that the myeloid lineage is a significant source of HO-1 expression, and is co-expressed with the immune checkpoints PD-L1/2 in human breast tumors. In vivo, we therapeutically compare the efficacy of targeting these two pathways alongside immune-stimulating chemotherapy, and demonstrate that the efficacy of SnMP compares favorably with PD-1 blockade in preclinical models.Conclusions: SnMP could represent a novel immune checkpoint therapy, which may improve the immunological response to chemotherapy. Clin Cancer Res; 24(7); 1617-28. (c)2018 AACR. PMID- 29339442 TI - Specific Substrate for the Assay of Lysosomal Acid Lipase. AB - BACKGROUND: Deficiency of lysosomal acid lipase (LAL) causes Wolman disease and cholesterol ester storage disease. With the recent introduction of enzyme replacement therapy to manage LAL deficiency comes the need for a reliable assay of LAL enzymatic activity that can be applied to dried blood spots (DBS). METHODS: We prepared and tested a library of analogs of palmitoyl 4 methylumbelifferyl esters to find a highly active and specific substrate for LAL in DBS. The LAL assay was optimized leading to both LC-MS/MS and fluorometric assay of LAL. We tested the new assay on DBS from healthy and LAL-deficient patients. RESULTS: The ester formed between palmitic acid and 4-propyl-8-methyl-7 hydroxycoumarin (P-PMHC) was found to be >98% selective for LAL in DBS based on the sensitivity of its activity to the LAL-specific inactivator Lalistat-2 and the fact that the activity was close to zero using DBS from patients previously shown to be LAL-deficient. Use of P-PMHC and heavy isotope-labeled internal standard with optimized assay conditions led to an approximately 2-fold increase in the specific activity of LAL compared with the previously reported LAL assay. Patients deficient in LAL were readily distinguished from normal persons with the new LAL assay using UPLC-MS/MS or fluorometric assay platforms. CONCLUSIONS: The new assay can measure LAL in DBS with a single measurement compared with the previous method involving 2 assays done in parallel. PMID- 29339443 TI - Immune system: The "seventh sense". AB - The brain is our computing machine that integrates stimuli from the environment and orchestrates responses to these stimuli. Here, I propose that the defining role of the immune system is to sense microorganisms and to inform the brain about them. PMID- 29339444 TI - LIGHT-HVEM signaling in keratinocytes controls development of dermatitis. AB - Dermatitis is often associated with an allergic reaction characterized by excessive type 2 responses leading to epidermal acanthosis, hyperkeratosis, and dermal inflammation. Although factors like IL-4, IL-13, and thymic stromal lymphopoietin (TSLP) are thought to be instrumental for the development of this type of skin disorder, other cytokines may be critical. Here, we show that the tumor necrosis factor (TNF) superfamily protein LIGHT (homologous to lymphotoxin, exhibits inducible expression, and competes with HSV glycoprotein D for binding to HVEM, a receptor expressed on T lymphocytes) is required for experimental atopic dermatitis, and LIGHT directly controls keratinocyte hyperplasia, and production of periostin, a matricellular protein that contributes to the clinical features of atopic dermatitis as well as other skin diseases such as scleroderma. Mice with a conditional deletion of the LIGHT receptor HVEM (herpesvirus entry mediator) in keratinocytes phenocopied LIGHT-deficient mice in exhibiting reduced epidermal thickening and dermal collagen deposition in a model of atopic dermatitis driven by house dust mite allergen. LIGHT signaling through HVEM in human epidermal keratinocytes directly induced proliferation and periostin expression, and both keratinocyte-specific deletion of HVEM or antibody blocking of LIGHT-HVEM interactions after disease onset prevented expression of periostin and limited atopic dermatitis symptoms. Developing reagents that neutralize LIGHT HVEM signaling might be useful for therapeutic intervention in skin diseases where periostin is a central feature. PMID- 29339445 TI - Bile acids in glucose metabolism in health and disease. AB - Bile acids (BAs) are cholesterol-derived metabolites that facilitate the intestinal absorption and transport of dietary lipids. Recently, BAs also emerged as pivotal signaling molecules controlling glucose, lipid, and energy metabolism by binding to the nuclear hormone farnesoid X receptor (FXR) and Takeda G protein receptor 5 (TGR5) in multiple organs, leading to regulation of intestinal incretin secretion, hepatic gluconeogenesis, glycogen synthesis, energy expenditure, inflammation, and gut microbiome configuration. Alterations in BA metabolism and signaling are associated with obesity and type 2 diabetes mellitus (T2DM), whereas treatment of T2DM patients with BA sequestrants, or bariatric surgery in morbidly obese patients, results in a significant improvement in glycemic response that is associated with changes in the BA profile and signaling. Herein, we review the roles of BAs in glucose metabolism in health and disease; highlight the limitations, unknowns, and challenges in understanding the impact of BAs on the glycemic response; and discuss how this knowledge may be harnessed to develop innovative therapeutic approaches for the treatment of hyperglycemia and diabetes. PMID- 29339446 TI - Ontogeny of human mucosal-associated invariant T cells and related T cell subsets. AB - Mucosal-associated invariant T (MAIT) cells are semi-invariant Valpha7.2+ CD161highCD4- T cells that recognize microbial riboflavin precursor derivatives such as 5-OP-RU presented by MR1. Human MAIT cells are abundant in adult blood, but there are very few in cord blood. We longitudinally studied Valpha7.2+ CD161high T cell and related subset levels in infancy and after cord blood transplantation. We show that Valpha7.2+ and Valpha7.2- CD161high T cells are generated early during gestation and likely share a common prenatal developmental program. Among cord blood Valpha7.2+ CD161high T cells, the minority recognizing MR1:5-OP-RU display a TRAV/TRBV repertoire very similar to adult MAIT cells. Within a few weeks of life, only the MR1:5-OP-RU reactive Valpha7.2+ CD161high T cells acquire a memory phenotype. Only these cells expand to form the adult MAIT pool, diluting out other Valpha7.2+ CD161high and Valpha7.2- CD161high populations, in a process requiring at least 6 years to reach adult levels. Thus, the high clonal size of adult MAIT cells is antigen-driven and likely due to the fine specificity of the TCRalphabeta chains recognizing MR1-restricted microbial antigens. PMID- 29339447 TI - Guidance of super-enhancers in regulation of IL-9 induction and airway inflammation. AB - Th9 cells are prominently featured in allergic lung inflammation, but the mechanism that regulates IL-9 induction in T helper cells remains poorly defined. Here we demonstrate that formation of super-enhancers (SEs) is critical in robust induction of IL-9 and that assembly of the Il9 SEs in Th cells requires OX40 triggered chromatin acetylation. Mechanistically, we found that OX40 costimulation induces RelB expression, which recruits the histone acetyltransferase p300 to the Il9 locus to catalyze H3K27 acetylation. This allows binding of the SE factor Brd4 to organize assembly of the SE complex, which in turn drives robust IL-9 expression and Th9 cell induction. Thus, Th9 cells are strongly induced upon OX40 stimulation, and disruption of SEs abolished Th9 cell induction in vitro and inhibited Th9 cell-mediated allergic airway inflammation in vivo. Together, our data suggest that formation of SEs is essential in IL-9 expression and Th9 cell induction. These findings may have important clinical implications. PMID- 29339448 TI - Development of intestinal M cells and follicle-associated epithelium is regulated by TRAF6-mediated NF-kappaB signaling. AB - M cells are located in the follicle-associated epithelium (FAE) that covers Peyer's patches (PPs) and are responsible for the uptake of intestinal antigens. The differentiation of M cells is initiated by receptor activator of NF-kappaB. However, the intracellular pathways involved in M cell differentiation are still elusive. In this study, we demonstrate that the NF-kappaB pathway activated by RANK is essential for M cell differentiation using in vitro organoid culture. Overexpression of NF-kappaB transcription factors enhances the expression of M cell-associated molecules but is not sufficient to complete M cell differentiation. Furthermore, we evaluated the requirement for tumor necrosis factor receptor-associated factor 6 (TRAF6). Conditional deletion of TRAF6 in the intestinal epithelium causes a complete loss of M cells in PPs, resulting in impaired antigen uptake into PPs. In addition, the expression of FAE-associated genes is almost silenced in TRAF6-deficient mice. This study thus demonstrates the crucial role of TRAF6-mediated NF-kappaB signaling in the development of M cells and FAE. PMID- 29339449 TI - Targeting IRF3 as a YAP agonist therapy against gastric cancer. AB - The Hippo pathway plays a vital role in tissue homeostasis and tumorigenesis. The transcription factor IRF3 is essential for innate antiviral immunity. In this study, we discovered IRF3 as an agonist of Yes-associated protein (YAP). The expression of IRF3 is positively correlated with that of YAP and its target genes in gastric cancer; the expression of both IRF3 and YAP is up-regulated and prognosticates patient survival. IRF3 interacts with both YAP and TEAD4 in the nucleus to enhance their interaction, promoting nuclear translocation and activation of YAP. IRF3 and YAP-TEAD4 are associated genome-wide to cobind and coregulate many target genes of the Hippo pathway. Overexpression of active IRF3 increased, but depletion of IRF3 reduced, the occupancy of YAP on the target genes. Knockdown or pharmacological targeting of IRF3 by Amlexanox, a drug used clinically for antiinflammatory treatment, inhibits gastric tumor growth in a YAP dependent manner. Collectively, our study identifies IRF3 as a positive regulator for YAP, highlighting a new therapeutic target against YAP-driven cancers. PMID- 29339451 TI - Inhibition of 5alpha-reductase alters pregnane metabolism in the late pregnant mare. AB - In the latter half of gestation in the mare, progesterone concentrations decline to near undetectable levels while other 5alpha-reduced pregnanes are elevated. Of these, 5alpha-dihydroprogesterone and allopregnanolone have been reported to have important roles in either pregnancy maintenance or fetal quiescence. During this time, the placenta is necessary for pregnane metabolism, with the enzyme 5alpha reductase being required for the conversion of progesterone to 5alpha dihydroprogesterone. The objectives of this study were to assess the effects of a 5alpha-reductase inhibitor, dutasteride on pregnane metabolism (pregnenolone, progesterone, 5alpha-dihydroprogesterone, 20alpha-hydroxy-5alpha-pregnan-3-one, 5alpha-pregnane-3beta,20alpha-diol and allopregnanolone), to determine circulating dutasteride concentrations and to assess effects of dutasteride treatment on gestational parameters. Pregnant mares (n = 5) received dutasteride (0.01 mg/kg/day, IM) and control mares (n = 4) received vehicle alone from 300 to 320 days of gestation or until parturition. Concentrations of dutasteride, pregnenolone, progesterone, 5alpha-dihydroprogesterone, 20alpha-hydroxy-5alpha pregnan-3-one, 5alpha-pregnane-3beta,20alpha-diol, and allopregnanolone were evaluated via liquid chromatography-tandem mass spectrometry. Samples were analyzed as both days post treatment and as days prepartum. No significant treatment effects were detected in pregnenolone, 5alpha-dihydroprogesterone, 20alpha-hydroxy-5alpha-pregnan-3-one, 5alpha-pregnane-3beta,20alpha-diol or allopregnanolone for either analysis; however, progesterone concentrations were increased (P < 0.05) sixfold in dutasteride-treated mares compared to control mares. Dutasteride concentrations increased in the treated mares, with a significant correlation (P < 0.05) between dutasteride concentrations and pregnenolone or progesterone concentrations. Gestational length and neonatal outcomes were not significantly altered in dutasteride-treated mares. Although 5alpha-reduced metabolites were unchanged, these data suggest an accumulation of precursor progesterone with inhibition of 5alpha-reductase, indicating the ability of dutasteride to alter progesterone metabolism. PMID- 29339450 TI - Cardiac macrophages promote diastolic dysfunction. AB - Macrophages populate the healthy myocardium and, depending on their phenotype, may contribute to tissue homeostasis or disease. Their origin and role in diastolic dysfunction, a hallmark of cardiac aging and heart failure with preserved ejection fraction, remain unclear. Here we show that cardiac macrophages expand in humans and mice with diastolic dysfunction, which in mice was induced by either hypertension or advanced age. A higher murine myocardial macrophage density results from monocyte recruitment and increased hematopoiesis in bone marrow and spleen. In humans, we observed a parallel constellation of hematopoietic activation: circulating myeloid cells are more frequent, and splenic 18F-FDG PET/CT imaging signal correlates with echocardiographic indices of diastolic dysfunction. While diastolic dysfunction develops, cardiac macrophages produce IL-10, activate fibroblasts, and stimulate collagen deposition, leading to impaired myocardial relaxation and increased myocardial stiffness. Deletion of IL-10 in macrophages improves diastolic function. These data imply expansion and phenotypic changes of cardiac macrophages as therapeutic targets for cardiac fibrosis leading to diastolic dysfunction. PMID- 29339452 TI - Effects of colostrum, feeding method and oral IGF1 on porcine uterine development. AB - Nursing ensures lactocrine delivery of maternally derived, milk-borne bioactive factors to offspring, which affects postnatal development of female reproductive tract tissues. Disruption of lactocrine communication for two days from birth (postnatal day (PND) 0) by feeding milk replacer in lieu of nursing or consumption of colostrum alters porcine uterine gene expression globally by PND 2 and inhibits uterine gland genesis by PND 14. Here, objectives were to determine effects of: (1) nursing or milk replacer feeding from birth; (2) a single dose of colostrum or milk replacer and method of feeding and (3) a single feeding of colostrum or milk replacer, with or without oral supplementation of IGF1, administered at birth on aspects of porcine uterine development at 12-h postnatally. Results indicate nursing for 12 h from birth supports rapid establishment of a uterine developmental program, illustrated by patterns of endometrial cell proliferation, expression of genes associated with uterine wall development and entry into mitosis and establishment of a uterine MMP9/TIMP1 system. A single feeding of colostrum at birth increased endometrial cell proliferation at 12 h, regardless of method of feeding. Oral supplementation of IGF1 was sufficient to support endometrial cell proliferation at 12 h in replacer fed gilts, and supplementation of colostrum with IGF1 further increased endometrial cell proliferation. Results indicate that lactocrine regulation of postnatal uterine development is initiated with the first ingestion of colostrum. Further, results suggest IGF1 may be lactocrine-active and support a 12-h bioassay, which can be used to identify uterotrophic lactocrine activity. PMID- 29339453 TI - PGRMC1 localization and putative function in the nucleolus of bovine granulosa cells and oocytes. AB - Progesterone receptor membrane component-1 (PGRMC1) is a highly conserved multifunctional protein that is found in numerous systems, including reproductive system. Interestingly, PGRMC1 is expressed at several intracellular locations, including the nucleolus. The aim of this study is to investigate the functional relationship between PGRMC1 and nucleolus. Immunofluorescence experiments confirmed PGRMC1's nucleolar localization in cultured bovine granulosa cells (bGC) and oocytes. Additional experiments conducted on bGC revealed that PGRMC1 co-localizes with nucleolin (NCL), a major nucleolar protein. Furthermore, small interfering RNA (RNAi)-mediated gene silencing experiments showed that when PGRMC1 expression was depleted, NCL translocated from the nucleolus to the nucleoplasm. Similarly, oxidative stress induced by hydrogen peroxide (H2O2) treatment, reduced PGRMC1 immunofluorescent signal in the nucleolus and increased NCL nucleoplasmic signal, when compared to non-treated cells. Although PGRMC1 influenced NCL localization, a direct interaction between these two proteins was not detected using in situ proximity ligation assay. This suggests the involvement of additional molecules in mediating the co-localization of PGRMC1 and nucleolin. Since nucleolin translocates into the nucleoplasm in response to various cellular stressors, PGRMC1's ability to regulate its localization within the nucleolus is likely an important component of mechanism by which cells response to stress. This concept is consistent with PGRMC1's well-described ability to promote ovarian cell survival and provides a rationale for future studies on PGRMC1, NCL and the molecular mechanism by which these two proteins protect against the adverse effect of cellular stressors, including oxidative stress. PMID- 29339454 TI - Chromatin remodeling in mammalian embryos. AB - The mammalian embryo undergoes a dramatic amount of epigenetic remodeling during the first week of development. In this review, we discuss several epigenetic changes that happen over the course of cleavage development, focusing on covalent marks (e.g., histone methylation and acetylation) and non-covalent remodeling (chromatin remodeling via remodeling complexes; e.g., SWI/SNF-mediated chromatin remodeling). Comparisons are also drawn between remodeling events that occur in embryos from a variety of mammalian species. PMID- 29339455 TI - High N-Acetyltransferase 1 Expression Is Associated with Estrogen Receptor Expression in Breast Tumors, but Is not Under Direct Regulation by Estradiol, 5alpha-androstane-3beta,17beta-Diol, or Dihydrotestosterone in Breast Cancer Cells. AB - N-acetyltransferase 1 (NAT1) is an enzyme that metabolizes carcinogens, which suggests a potential role in breast carcinogenesis. High NAT1 expression in breast tumors is associated with estrogen receptor alpha (ERalpha+) and the luminal subtype. We report that NAT1 mRNA transcript, protein, and enzyme activity were higher in human breast tumors with high expression of ERalpha/ESR1 compared with normal breast tissue. There was a strong correlation between NATb promoter and NAT1 protein expression/enzyme activity. High NAT1 expression in tumors was not the result of adipocytes, as evidenced by low perilipin (PLIN) expression. ESR1, NAT1, and XBP1 expression were associated in tumor biopsies. Direct regulation of NAT1 transcription by estradiol (E2) was investigated in ERalpha (+) MCF-7 and T47D breast cancer cells. E2 did not increase NAT1 transcript expression but increased progesterone receptor expression in a dose dependent manner. Likewise, NAT1 transcript levels were not increased by dihydrotestosterone (DHT) or 5alpha-androstane-3beta, (3beta-adiol) 17beta-diol. Dithiothreitol increased levels of the activated, spliced XBP1 in ERalpha (+) MCF 7 and T47D breast cancer cells but did not affect NAT1 or ESR1 expression. We conclude that NAT1 expression is not directly regulated by E2, DHT, 3beta-adiol, or dithiothreitol despite high NAT1 and ESR1 expression in luminal A breast cancer cells, suggesting that ESR1, XBP1, and NAT1 expression may share a common transcriptional network arising from the luminal epithelium associated with better survival in breast cancer. Clusters of high-expression genes, including NAT1, in breast tumors might serve as potential targets for novel therapeutic drug development. PMID- 29339456 TI - PARP Inhibition Prevents Ethanol-Induced Neuroinflammatory Signaling and Neurodegeneration in Rat Adult-Age Brain Slice Cultures. AB - Using rat adult-age hippocampal-entorhinal cortical (HEC) slice cultures, we examined the role of poly [ADP-ribose] polymerase (PARP) in binge ethanol's brain inflammatory and neurodegenerative mechanisms. Activated by DNA strand breaks, PARP (principally PARP1 in the brain) promotes DNA repair via poly [ADP-ribose] (PAR) products, but PARP overactivation triggers regulated neuronal necrosis (e.g., parthanatos). Previously, we found that brain PARP1 levels were upregulated by neurotoxic ethanol binges in adult rats and HEC slices, and PARP inhibitor PJ34 abrogated slice neurodegeneration. Binged HEC slices also exhibited increased Ca+2-dependent phospholipase A2 (PLA2) isoenzymes (cPLA2 IVA and sPLA2 IIA) that mobilize proinflammatory omega6 arachidonic acid (ARA). We now find in 4-day-binged HEC slice cultures (100 mM ethanol) that PARP1 elevations after two overnight binges precede PAR, cPLA2, and sPLA2 enhancements by 1 day and high-mobility group box-1 (HMGB1), an ethanol-responsive alarmin that augments proinflammatory cytokines via toll-like receptor-4 (TLR4), by 2 days. After verifying that PJ34 effectively blocks PARP activity (?PAR), we demonstrated that, like PJ34, three other PARP inhibitors-olaparib, veliparib, and 4-aminobenzamide-provided neuroprotection from ethanol. Importantly, PJ34 and olaparib also prevented ethanol's amplification of the PLA2 isoenzymes, and two PLA2 inhibitors were neuroprotective-thus coupling PARP to PLA2, with PLA2 activity promoting neurodegeneration. Also, PJ34 and olaparib blocked ethanol induced HMGB1 elevations, linking brain PARP induction to TLR4 activation. The results provide evidence in adult brains that induction of PARP1 may mediate dual neuroinflammatory pathways (PLA2->phospholipid->ARA and HMGB1->TLR4 >proinflammatory cytokines) that are complicit in binge ethanol-induced neurodegeneration. PMID- 29339457 TI - Curcumin Acts as a Positive Allosteric Modulator of alpha7-Nicotinic Acetylcholine Receptors and Reverses Nociception in Mouse Models of Inflammatory Pain. AB - Effects of curcumin, a major ingredient of turmeric, were tested on the function of the alpha7-subunit of the human nicotinic acetylcholine (alpha7-nACh) receptor expressed in Xenopus oocytes and on nociception in mouse models of tonic and visceral pain. Curcumin caused a significant potentiation of currents induced by acetylcholine (ACh; 100 MUM) with an EC50 value of 0.2 uM. The effect of curcumin was not dependent on the activation of G-proteins and protein kinases and did not involve Ca2+-dependent Cl- channels expressed endogenously in oocytes. Importantly, the extent of curcumin potentiation was enhanced significantly by decreasing ACh concentrations. Curcumin did not alter specific binding of [125I]alpha-bungarotoxin. In addition, curcumin attenuated nociceptive behavior in both tonic and visceral pain models without affecting motor and locomotor activity and without producing tolerance. Pharmacological and genetic approaches revealed that the antinociceptive effect of curcumin was mediated by alpha7-nACh receptors. Curcumin potentiated the antinociceptive effects of the alpha7-nACh receptor agonist N-(3R)-1-azabicyclo[2.2.2]oct-3-yl-4-chlorobenzamide (PNU282987). Collectively, our results indicate that curcumin is a positive allosteric modulator of alpha7-nACh receptor and reverses nociception in mouse models of tonic and visceral pain. PMID- 29339458 TI - Coassociation between Group B Streptococcus and Candida albicans Promotes Interactions with Vaginal Epithelium. AB - Group B Streptococcus (GBS) is a leading cause of neonatal sepsis, pneumonia, and meningitis worldwide. In the majority of cases, GBS is transmitted vertically from mother to neonate, making maternal vaginal colonization a key risk factor for neonatal disease. The fungus Candida albicans is an opportunistic pathogen of the female genitourinary tract and the causative agent of vaginal thrush. Carriage of C. albicans has been shown to be an independent risk factor for vaginal colonization by GBS. However, the nature of interactions between these two microbes is poorly understood. This study provides evidence of a reciprocal, synergistic interplay between GBS and C. albicans that may serve to promote their cocolonization of the vaginal mucosa. GBS strains NEM316 (serotype III) and 515 (serotype Ia) are shown to physically interact with C. albicans, with the bacteria exhibiting tropism for candidal hyphal filaments. This interaction enhances association levels of both microbes with the vaginal epithelial cell line VK2/E6E7. The ability of GBS to coassociate with C. albicans is dependent upon expression of the hypha-specific adhesin Als3. In turn, expression of GBS antigen I/II family adhesins (Bsp polypeptides) facilitates this coassociation and confers upon surrogate Lactococcus lactis the capacity to exhibit enhanced interactions with C. albicans on vaginal epithelium. As genitourinary tract colonization is an essential first step in the pathogenesis of GBS and C. albicans, the coassociation mechanism reported here may have important implications for the risk of disease involving both of these pathogens. PMID- 29339459 TI - Novel Two-Component System of Streptococcus sanguinis Affecting Functions Associated with Viability in Saliva and Biofilm Formation. AB - Streptococcus sanguinis is a pioneer species of teeth and a common opportunistic pathogen of infective endocarditis. In this study, we identified a two-component system, S. sanguinis SptRS (SptRS Ss ), affecting S. sanguinis survival in saliva and biofilm formation. Isogenic mutants of sptRSs (SKsptR) and sptSSs (SKsptS) showed reduced cell counts in ex vivo assays of viability in saliva compared to those of parent strain SK36 and complemented mutants. Reduced counts of the mutants in saliva were associated with reduced growth rates in nutrient-poor medium (RPMI) and increased susceptibility to the deposition of C3b and the membrane attach complex (MAC) of the complement system, a defense component of saliva and serum. Conversely, sptRSs and sptSSs mutants showed increased biofilm formation associated with higher levels of production of H2O2 and extracellular DNA. Reverse transcription-quantitative PCR (RT-qPCR) comparisons of strains indicated a global role of SptRS Ss in repressing genes for H2O2 production (2.5- to 15-fold upregulation of spxB, spxR, vicR, tpk, and ackA in sptRSs and sptSSs mutants), biofilm formation, and/or evasion of host immunity (2.1- to 11.4-fold upregulation of srtA, pcsB, cwdP, iga, and nt5e). Compatible with the homology of SptR Ss with AraC-type regulators, duplicate to multiple conserved repeats were identified in 1,000-bp regulatory regions of downstream genes, suggesting that SptR Ss regulates transcription by DNA looping. Significant transcriptional changes in the regulatory genes vicR, spxR, comE, comX, and mecA in the sptRSs and sptSSs mutants further indicated that SptRS Ss is part of a regulatory network that coordinates cell wall homeostasis, H2O2 production, and competence. This study reveals that SptRS Ss is involved in the regulation of crucial functions for S. sanguinis persistence in the oral cavity. PMID- 29339460 TI - Dot/Icm-Translocated Proteins Important for Biogenesis of the Coxiella burnetii Containing Vacuole Identified by Screening of an Effector Mutant Sublibrary. AB - Coxiella burnetii is an intracellular pathogen that replicates in a lysosome derived vacuole. A determinant necessary for C. burnetii virulence is the Dot/Icm type IVB secretion system (T4SS). The Dot/Icm system delivers more than 100 proteins, called type IV effectors (T4Es), across the vacuolar membrane into the host cell cytosol. Several T4Es have been shown to be important for vacuolar biogenesis. Here, transposon (Tn) insertion sequencing technology (INSeq) was used to identify C. burnetii Nine Mile phase II mutants in an arrayed library, which facilitated the identification and clonal isolation of mutants deficient in 70 different T4E proteins. These effector mutants were screened in HeLa cells for deficiencies in Coxiella-containing vacuole (CCV) biogenesis. This screen identified and validated seven new T4Es that were important for vacuole biogenesis. Loss-of-function mutations in cbu0414 (coxH1), cbu0513, cbu0978 (cem3), cbu1387 (cem6), cbu1524 (caeA), cbu1752, or cbu2028 resulted in a small vacuole phenotype. These seven mutant strains produced small CCVs in all cells tested, which included macrophage-like cells. The cbu2028::Tn mutant, though unable to develop large CCVs, had intracellular replication rates similar to the rate of the parental strain of C. burnetii, whereas the other six effector mutants defective in CCV biogenesis displayed significant reductions in intracellular replication. Vacuoles created by the cbu0513::Tn mutant did not accumulate lipidated microtubule-associated protein 1A/1B light chain 3 (LC3-II), suggesting a failure in fusion of the CCV with autophagosomes. These seven T4E proteins add to the growing repertoire of C. burnetii factors that contribute to CCV biogenesis. PMID- 29339461 TI - Cooperative Immune Suppression by Escherichia coli and Shigella Effector Proteins. AB - The enteric attaching and effacing (A/E) pathogens enterohemorrhagic Escherichia coli (EHEC) and enteropathogenic E. coli (EPEC) and the invasive pathogens enteroinvasive E. coli (EIEC) and Shigella encode type III secretion systems (T3SS) used to inject effector proteins into human host cells during infection. Among these are a group of effectors required for NF-kappaB-mediated host immune evasion. Recent studies have identified several effector proteins from A/E pathogens and EIEC/Shigella that are involved in suppression of NF-kappaB and have uncovered their cellular and molecular functions. A novel mechanism among these effectors from both groups of pathogens is to coordinate effector function during infection. This cooperativity among effector proteins explains how bacterial pathogens are able to effectively suppress innate immune defense mechanisms in response to diverse classes of immune receptor signaling complexes (RSCs) stimulated during infection. PMID- 29339462 TI - Direct Manipulation of T Lymphocytes by Proteins of Gastrointestinal Bacterial Pathogens. AB - Gastrointestinal bacterial infection represents a significant threat to human health, as well as a burden on food animal production and welfare. Although there is advanced knowledge about the molecular mechanisms underlying pathogenesis, including the development of immune responses to these pathogens, gaps in knowledge persist. It is well established that gastrointestinal bacterial pathogens produce a myriad of proteins that affect the development and effectiveness of innate immune responses. However, relatively few proteins that directly affect lymphocytes responsible for humoral or cell-mediated immunity and memory have been identified. Here, we review factors produced by gastrointestinal bacterial pathogens that have direct T cell interactions and what is known about their functions and mechanisms of action. T cell-interacting bacterial proteins that have been identified to date mainly target three major T cell responses: activation and expansion, chemotaxis, or apoptosis. Further, the requirement for more focused studies to identify and understand additional mechanisms used by bacteria to directly affect the T cell immune response and how these may contribute to pathogenesis is highlighted. Increased knowledge in this area will help to drive development of better interventions in prevention and treatment of gastrointestinal bacterial infection. PMID- 29339463 TI - Cell Cycle Arrest and Apoptosis Induced by Porphyromonas gingivalis Require Jun N Terminal Protein Kinase- and p53-Mediated p38 Activation in Human Trophoblasts. AB - Porphyromonas gingivalis, a periodontal pathogen, has been implicated as a causative agent of preterm delivery of low-birth-weight infants. We previously reported that P. gingivalis activated cellular DNA damage signaling pathways and ERK1/2 that lead to G1 arrest and apoptosis in extravillous trophoblast cells (HTR-8 cells) derived from the human placenta. In the present study, we further examined alternative signaling pathways mediating cellular damage caused by P. gingivalis. P. gingivalis infection of HTR-8 cells induced phosphorylation of p38 and Jun N-terminal protein kinase (JNK), while their inhibitors diminished both G1 arrest and apoptosis. In addition, heat shock protein 27 (HSP27) was phosphorylated through both p38 and JNK, and knockdown of HSP27 with small interfering RNA (siRNA) prevented both G1 arrest and apoptosis. Furthermore, regulation of G1 arrest and apoptosis was associated with p21 expression. HTR-8 cells infected with P. gingivalis exhibited upregulation of p21, which was regulated by p53 and HSP27. These results suggest that P. gingivalis induces G1 arrest and apoptosis via novel molecular pathways that involve p38 and JNK with its downstream effectors in human trophoblasts. PMID- 29339467 TI - Profile of Scott W. Lowe. PMID- 29339464 TI - Propionate enters GABAergic neurons, inhibits GABA transaminase, causes GABA accumulation and lethargy in a model of propionic acidemia. AB - Propionic acidemia is the accumulation of propionate in blood due to dysfunction of propionyl-CoA carboxylase. The condition causes lethargy and striatal degeneration with motor impairment in humans. How propionate exerts its toxic effect is unclear. Here, we show that intravenous administration of propionate causes dose-dependent propionate accumulation in the brain and transient lethargy in mice. Propionate, an inhibitor of histone deacetylase, entered GABAergic neurons, as could be seen from increased neuronal histone H4 acetylation in the striatum and neocortex. Propionate caused an increase in GABA (gamma-amino butyric acid) levels in the brain, suggesting inhibition of GABA breakdown. In vitro propionate inhibited GABA transaminase with a Ki of ~1 mmol/l. In isolated nerve endings, propionate caused increased release of GABA to the extracellular fluid. In vivo, propionate reduced cerebral glucose metabolism in both striatum and neocortex. We conclude that propionate-induced inhibition of GABA transaminase causes accumulation of GABA in the brain, leading to increased extracellular GABA concentration, which inhibits neuronal activity and causes lethargy. Propionate-mediated inhibition of neuronal GABA transaminase, an enzyme of the inner mitochondrial membrane, indicates entry of propionate into neuronal mitochondria. However, previous work has shown that neurons are unable to metabolize propionate oxidatively, leading us to conclude that propionyl-CoA synthetase is probably absent from neuronal mitochondria. Propionate-induced inhibition of energy metabolism in GABAergic neurons may render the striatum, in which >90% of the neurons are GABAergic, particularly vulnerable to degeneration in propionic acidemia. PMID- 29339468 TI - Molecular epidemiology reveals the role of war in the spread of HIV in Ukraine. AB - Ukraine has one of the largest HIV epidemics in Europe, historically driven by people who inject drugs (PWID). The epidemic showed signs of stabilization in 2012, but the recent war in eastern Ukraine may be reigniting virus spread. We investigated the movement of HIV-infected people within Ukraine before and during the conflict. We analyzed HIV-1 subtype-A pol nucleotide sequences sampled during 2012-2015 from 427 patients of 24 regional AIDS centers and used phylogeographic analysis to reconstruct virus movement among different locations in Ukraine. We then tested for correlations between reported PWID behaviors and reconstructed patterns of virus spread. Our analyses suggest that Donetsk and Lugansk, two cities not controlled by the Ukrainian government in eastern Ukraine, were significant exporters of the virus to the rest of the country. Additional analyses showed that viral dissemination within the country changed after 2013. Spearman correlation analysis showed that incoming virus flow was correlated with the number of HIV-infected internally displaced people. Additionally, there was a correlation between more intensive virus movement and locations with a higher proportion of PWID practicing risky sexual behaviors. Our findings suggest that effective prevention responses should involve internally displaced people and people who frequently travel to war-affected regions. Scale-up of harm reduction services for PWID will be an important factor in preventing new local HIV outbreaks in Ukraine. PMID- 29339470 TI - A randomized controlled design reveals barriers to citizenship for low-income immigrants. AB - Citizenship endows legal protections and is associated with economic and social gains for immigrants and their communities. In the United States, however, naturalization rates are relatively low. Yet we lack reliable knowledge as to what constrains immigrants from applying. Drawing on data from a public/private naturalization program in New York, this research provides a randomized controlled study of policy interventions that address these constraints. The study tested two programmatic interventions among low-income immigrants who are eligible for citizenship. The first randomly assigned a voucher that covers the naturalization application fee among immigrants who otherwise would have to pay the full cost of the fee. The second randomly assigned a set of behavioral nudges, similar to outreach efforts used by service providers, among immigrants whose incomes were low enough to qualify them for a federal waiver that eliminates the application fee. Offering the fee voucher increased naturalization application rates by about 41%, suggesting that application fees act as a barrier for low-income immigrants who want to become US citizens. The nudges to encourage the very poor to apply had no discernible effect, indicating the presence of nonfinancial barriers to naturalization. PMID- 29339469 TI - The Bardet-Biedl syndrome protein complex is an adapter expanding the cargo range of intraflagellar transport trains for ciliary export. AB - Bardet-Biedl syndrome (BBS) is a ciliopathy resulting from defects in the BBSome, a conserved protein complex. BBSome mutations affect ciliary membrane composition, impairing cilia-based signaling. The mechanism by which the BBSome regulates ciliary membrane content remains unknown. Chlamydomonas bbs mutants lack phototaxis and accumulate phospholipase D (PLD) in the ciliary membrane. Single particle imaging revealed that PLD comigrates with BBS4 by intraflagellar transport (IFT) while IFT of PLD is abolished in bbs mutants. BBSome deficiency did not alter the rate of PLD entry into cilia. Membrane association and the N terminal 58 residues of PLD are sufficient and necessary for BBSome-dependent transport and ciliary export. The replacement of PLD's ciliary export sequence (CES) caused PLD to accumulate in cilia of cells with intact BBSomes and IFT. The buildup of PLD inside cilia impaired phototaxis, revealing that PLD is a negative regulator of phototactic behavior. We conclude that the BBSome is a cargo adapter ensuring ciliary export of PLD on IFT trains to regulate phototaxis. PMID- 29339471 TI - Laminar recordings in frontal cortex suggest distinct layers for maintenance and control of working memory. AB - All of the cerebral cortex has some degree of laminar organization. These different layers are composed of neurons with distinct connectivity patterns, embryonic origins, and molecular profiles. There are little data on the laminar specificity of cognitive functions in the frontal cortex, however. We recorded neuronal spiking/local field potentials (LFPs) using laminar probes in the frontal cortex (PMd, 8A, 8B, SMA/ACC, DLPFC, and VLPFC) of monkeys performing working memory (WM) tasks. LFP power in the gamma band (50-250 Hz) was strongest in superficial layers, and LFP power in the alpha/beta band (4-22 Hz) was strongest in deep layers. Memory delay activity, including spiking and stimulus specific gamma bursting, was predominately in superficial layers. LFPs from superficial and deep layers were synchronized in the alpha/beta bands. This was primarily unidirectional, with alpha/beta bands in deep layers driving superficial layer activity. The phase of deep layer alpha/beta modulated superficial gamma bursting associated with WM encoding. Thus, alpha/beta rhythms in deep layers may regulate the superficial layer gamma bands and hence maintenance of the contents of WM. PMID- 29339472 TI - miRNA-mediated targeting of human cytomegalovirus reveals biological host and viral targets of IE2. AB - Human cytomegalovirus (HCMV) impacts more than one-half of the human population owing to its capacity to manipulate the cell and create latent reservoirs in the host. Despite an extensive understanding of HCMV biology during acute infection in fibroblasts, the molecular basis for latency in myeloid cells remains incomplete. This knowledge gap is due largely to the fact that the existing genetic systems require virus rescue in fibroblasts, precluding the study of genes that are essential during acute infection, yet likely play unique roles in myeloid cells or the establishment of latency. Here we present a solution to address this restriction. Through the exploitation of a hematopoietic-specific microRNA, we demonstrate a one-step recombineering approach that enables gene silencing only in cells associated with latency. As a proof of concept, here we describe a TB40/E variant that undergoes hematopoietic targeting of the Immediate Early-2 (IE2) gene to explore its function during infection of myeloid cells. While virus replication of the hematopoietic-targeted IE2 variant was unimpaired in fibroblasts, we observed a >100-fold increase in virus titers in myeloid cells. Virus replication in myeloid cells demonstrated that IE2 has a significant transcriptional footprint on both viral and host genes. These data implicate IE2 as an essential mediator of virus biology in myeloid cells and illustrate the utility of cell-specific microRNA-based targeting. PMID- 29339473 TI - Identification of thioredoxin-interacting protein (TXNIP) as a downstream target for IGF1 action. AB - Laron syndrome (LS), or primary growth hormone (GH) insensitivity, is the best characterized entity among the congenital insulin-like growth factor 1 (IGF1) deficiencies. Life-long exposure to minute endogenous IGF1 levels is linked to low stature as well as a number of endocrine and metabolic abnormalities. While elevated IGF1 is correlated with increased cancer incidence, epidemiological studies revealed that patients with LS do not develop tumors. The mechanisms associated with cancer protection in LS are yet to be discovered. Recent genomic analyses identified a series of metabolic genes that are overrepresented in patients with LS. Given the augmented expression of these genes in a low IGF1 milieu, we hypothesized that they may constitute targets for IGF1 action. Thioredoxin-interacting protein (TXNIP) plays a critical role in cellular redox control by thioredoxin. TXNIP serves as a glucose and oxidative stress sensor, being commonly silenced by genetic or epigenetic events in cancer cells. Consistent with its enhanced expression in LS, we provide evidence that TXNIP gene expression is negatively regulated by IGF1. These results were corroborated in animal studies. In addition, we show that oxidative and glucose stresses led to marked increases in TXNIP expression. Supplementation of IGF1 attenuated TXNIP levels, suggesting that IGF1 exerts its antiapoptotic effect via inhibition of TXNIP Augmented TXNIP expression in LS may account for cancer protection in this condition. Finally, TXNIP levels could be potentially useful in the clinic as a predictive or diagnostic biomarker for IGF1R-targeted therapies. PMID- 29339474 TI - Robust prediction of individual creative ability from brain functional connectivity. AB - People's ability to think creatively is a primary means of technological and cultural progress, yet the neural architecture of the highly creative brain remains largely undefined. Here, we employed a recently developed method in functional brain imaging analysis-connectome-based predictive modeling-to identify a brain network associated with high-creative ability, using functional magnetic resonance imaging (fMRI) data acquired from 163 participants engaged in a classic divergent thinking task. At the behavioral level, we found a strong correlation between creative thinking ability and self-reported creative behavior and accomplishment in the arts and sciences (r = 0.54). At the neural level, we found a pattern of functional brain connectivity related to high-creative thinking ability consisting of frontal and parietal regions within default, salience, and executive brain systems. In a leave-one-out cross-validation analysis, we show that this neural model can reliably predict the creative quality of ideas generated by novel participants within the sample. Furthermore, in a series of external validation analyses using data from two independent task fMRI samples and a large task-free resting-state fMRI sample, we demonstrate robust prediction of individual creative thinking ability from the same pattern of brain connectivity. The findings thus reveal a whole-brain network associated with high-creative ability comprised of cortical hubs within default, salience, and executive systems-intrinsic functional networks that tend to work in opposition-suggesting that highly creative people are characterized by the ability to simultaneously engage these large-scale brain networks. PMID- 29339475 TI - Electron mean-free-path filtering in Dirac material for improved thermoelectric performance. AB - Recent advancements in thermoelectric materials have largely benefited from various approaches, including band engineering and defect optimization, among which the nanostructuring technique presents a promising way to improve the thermoelectric figure of merit (zT) by means of reducing the characteristic length of the nanostructure, which relies on the belief that phonons' mean free paths (MFPs) are typically much longer than electrons'. Pushing the nanostructure sizes down to the length scale dictated by electron MFPs, however, has hitherto been overlooked as it inevitably sacrifices electrical conduction. Here we report through ab initio simulations that Dirac material can overcome this limitation. The monotonically decreasing trend of the electron MFP allows filtering of long MFP electrons that are detrimental to the Seebeck coefficient, leading to a dramatically enhanced power factor. Using SnTe as a material platform, we uncover this MFP filtering effect as arising from its unique nonparabolic Dirac band dispersion. Room-temperature zT can be enhanced by nearly a factor of 3 if one designs nanostructures with grain sizes of ~10 nm. Our work broadens the scope of the nanostructuring approach for improving the thermoelectric performance, especially for materials with topologically nontrivial electronic dynamics. PMID- 29339476 TI - Coding of episodic memory in the human hippocampus. AB - Neurocomputational models have long posited that episodic memories in the human hippocampus are represented by sparse, stimulus-specific neural codes. A concomitant proposal is that when sparse-distributed neural assemblies become active, they suppress the activity of competing neurons (neural sharpening). We investigated episodic memory coding in the hippocampus and amygdala by measuring single-neuron responses from 20 epilepsy patients (12 female) undergoing intracranial monitoring while they completed a continuous recognition memory task. In the left hippocampus, the distribution of single-neuron activity indicated that only a small fraction of neurons exhibited strong responding to a given repeated word and that each repeated word elicited strong responding in a different small fraction of neurons. This finding reflects sparse distributed coding. The remaining large fraction of neurons exhibited a concurrent reduction in firing rates relative to novel words. The observed pattern accords with longstanding predictions that have previously received scant support from single cell recordings from human hippocampus. PMID- 29339477 TI - Ebola virus proteins NP, VP35, and VP24 are essential and sufficient to mediate nucleocapsid transport. AB - The intracytoplasmic movement of nucleocapsids is a crucial step in the life cycle of enveloped viruses. Determination of the viral components necessary for viral nucleocapsid transport competency is complicated by the dynamic and complex nature of nucleocapsid assembly and the lack of appropriate model systems. Here, we established a live-cell imaging system based on the ectopic expression of fluorescent Ebola virus (EBOV) fusion proteins, allowing the visualization and analysis of the movement of EBOV nucleocapsid-like structures with different protein compositions. Only three of the five EBOV nucleocapsid proteins nucleoprotein, VP35, and VP24-were necessary and sufficient to form transport competent nucleocapsid-like structures. The transport of these structures was found to be dependent on actin polymerization and to have dynamics that were undistinguishable from those of nucleocapsids in EBOV-infected cells. The intracytoplasmic movement of nucleocapsid-like structures was completely independent of the viral matrix protein VP40 and the viral surface glycoprotein GP. However, VP40 greatly enhanced the efficiency of nucleocapsid recruitment into filopodia, the sites of EBOV budding. PMID- 29339478 TI - Cooperation, clustering, and assortative mixing in dynamic networks. AB - Humans' propensity to cooperate is driven by our embeddedness in social networks. A key mechanism through which networks promote cooperation is clustering. Within clusters, conditional cooperators are insulated from exploitation by noncooperators, allowing them to reap the benefits of cooperation. Dynamic networks, where ties can be shed and new ties formed, allow for the endogenous emergence of clusters of cooperators. Although past work suggests that either reputation processes or network dynamics can increase clustering and cooperation, existing work on network dynamics conflates reputations and dynamics. Here we report results from a large-scale experiment (total n = 2,675) that embedded participants in clustered or random networks that were static or dynamic, with varying levels of reputational information. Results show that initial network clustering predicts cooperation in static networks, but not in dynamic ones. Further, our experiment shows that while reputations are important for partner choice, cooperation levels are driven purely by dynamics. Supplemental conditions confirmed this lack of a reputation effect. Importantly, we find that when participants make individual choices to cooperate or defect with each partner, as opposed to a single decision that applies to all partners (as is standard in the literature on cooperation in networks), cooperation rates in static networks are as high as cooperation rates in dynamic networks. This finding highlights the importance of structured relations for sustained cooperation, and shows how giving experimental participants more realistic choices has important consequences for whether dynamic networks promote higher levels of cooperation than static networks. PMID- 29339480 TI - Local policy proposals can bridge Latino and (most) white Americans' response to immigration. AB - In the past 15 years, the adoption of subnational immigration policies in the United States, such as those established by individual states, has gone from nearly zero to over 300 per year. These include welcoming policies aimed at attracting and incorporating immigrants, as well as unwelcoming policies directed at denying immigrants access to public resources and services. Using data from a 2016 random digit-dialing telephone survey with an embedded experiment, we examine whether institutional support for policies that are either welcoming or hostile toward immigrants differentially shape Latinos' and whites' feelings of belonging in their state (Arizona/New Mexico, adjacent states with contrasting immigration policies). We randomly assigned individuals from the representative sample (n = 1,903) of Latinos (US and foreign born) and whites (all US born) to consider policies that were either welcoming of or hostile toward immigrants. Across both states of residence, Latinos, especially those foreign born, regardless of citizenship, expressed more positive affect and greater belonging when primed with a welcoming (vs. hostile) policy. Demonstrating the importance of local norms, these patterns held among US-born whites, except among self identified politically conservative whites, who showed more negative affect and lower levels of belonging in response to welcoming policies. Thus, welcoming immigration policies, supported by institutional authorities, can create a sense of belonging not only among newcomers that is vital to successful integration but also among a large segment of the population that is not a direct beneficiary of such policies-US-born whites. PMID- 29339479 TI - HIF signaling in osteoblast-lineage cells promotes systemic breast cancer growth and metastasis in mice. AB - Bone metastasis involves dynamic interplay between tumor cells and the local stromal environment. In bones, local hypoxia and activation of the hypoxia inducible factor (HIF)-1alpha in osteoblasts are essential to maintain skeletal homeostasis. However, the role of osteoblast-specific HIF signaling in cancer metastasis is unknown. Here, we show that osteoprogenitor cells (OPCs) are located in hypoxic niches in the bone marrow and that activation of HIF signaling in these cells increases bone mass and favors breast cancer metastasis to bone locally. Remarkably, HIF signaling in osteoblast-lineage cells also promotes breast cancer growth and dissemination remotely, in the lungs and in other tissues distant from bones. Mechanistically, we found that activation of HIF signaling in OPCs increases blood levels of the chemokine C-X-C motif ligand 12 (CXCL12), which leads to a systemic increase of breast cancer cell proliferation and dissemination through direct activation of the CXCR4 receptor. Hence, our data reveal a previously unrecognized role of the hypoxic osteogenic niche in promoting tumorigenesis beyond the local bone microenvironment. They also support the concept that the skeleton is an important regulator of the systemic tumor environment. PMID- 29339481 TI - Repetitive aggressive encounters generate a long-lasting internal state in Drosophila melanogaster males. AB - Multiple studies have investigated the mechanisms of aggressive behavior in Drosophila; however, little is known about the effects of chronic fighting experience. Here, we investigated if repeated fighting encounters would induce an internal state that could affect the expression of subsequent behavior. We trained wild-type males to become winners or losers by repeatedly pairing them with hypoaggressive or hyperaggressive opponents, respectively. As described previously, we observed that chronic losers tend to lose subsequent fights, while chronic winners tend to win them. Olfactory conditioning experiments showed that winning is perceived as rewarding, while losing is perceived as aversive. Moreover, the effect of chronic fighting experience generalized to other behaviors, such as gap-crossing and courtship. We propose that in response to repeatedly winning or losing aggressive encounters, male flies form an internal state that displays persistence and generalization; fight outcomes can also have positive or negative valence. Furthermore, we show that the activities of the PPL1-gamma1pedc dopaminergic neuron and the MBON-gamma1pedc>alpha/beta mushroom body output neuron are required for aversion to an olfactory cue associated with losing fights. PMID- 29339482 TI - Global spectral clustering in dynamic networks. AB - Community detection is challenging when the network structure is estimated with uncertainty. Dynamic networks present additional challenges but also add information across time periods. We propose a global community detection method, persistent communities by eigenvector smoothing (PisCES), that combines information across a series of networks, longitudinally, to strengthen the inference for each period. Our method is derived from evolutionary spectral clustering and degree correction methods. Data-driven solutions to the problem of tuning parameter selection are provided. In simulations we find that PisCES performs better than competing methods designed for a low signal-to-noise ratio. Recently obtained gene expression data from rhesus monkey brains provide samples from finely partitioned brain regions over a broad time span including pre- and postnatal periods. Of interest is how gene communities develop over space and time; however, once the data are divided into homogeneous spatial and temporal periods, sample sizes are very small, making inference quite challenging. Applying PisCES to medial prefrontal cortex in monkey rhesus brains from near conception to adulthood reveals dense communities that persist, merge, and diverge over time and others that are loosely organized and short lived, illustrating how dynamic community detection can yield interesting insights into processes such as brain development. PMID- 29339484 TI - Probabilistic switching circuits in DNA. AB - A natural feature of molecular systems is their inherent stochastic behavior. A fundamental challenge related to the programming of molecular information processing systems is to develop a circuit architecture that controls the stochastic states of individual molecular events. Here we present a systematic implementation of probabilistic switching circuits, using DNA strand displacement reactions. Exploiting the intrinsic stochasticity of molecular interactions, we developed a simple, unbiased DNA switch: An input signal strand binds to the switch and releases an output signal strand with probability one-half. Using this unbiased switch as a molecular building block, we designed DNA circuits that convert an input signal to an output signal with any desired probability. Further, this probability can be switched between 2 n different values by simply varying the presence or absence of n distinct DNA molecules. We demonstrated several DNA circuits that have multiple layers and feedback, including a circuit that converts an input strand to an output strand with eight different probabilities, controlled by the combination of three DNA molecules. These circuits combine the advantages of digital and analog computation: They allow a small number of distinct input molecules to control a diverse signal range of output molecules, while keeping the inputs robust to noise and the outputs at precise values. Moreover, arbitrarily complex circuit behaviors can be implemented with just a single type of molecular building block. PMID- 29339483 TI - HELLS and CDCA7 comprise a bipartite nucleosome remodeling complex defective in ICF syndrome. AB - Mutations in CDCA7, the SNF2 family protein HELLS (LSH), or the DNA methyltransferase DNMT3b cause immunodeficiency-centromeric instability-facial anomalies (ICF) syndrome. While it has been speculated that DNA methylation defects cause this disease, little is known about the molecular function of CDCA7 and its functional relationship to HELLS and DNMT3b. Systematic analysis of how the cell cycle, H3K9 methylation, and the mitotic kinase Aurora B affect proteomic profiles of chromatin in Xenopus egg extracts revealed that HELLS and CDCA7 form a stoichiometric complex on chromatin, in a manner sensitive to Aurora B. Although HELLS alone fails to remodel nucleosomes, we demonstrate that the HELLS-CDCA7 complex possesses nucleosome remodeling activity. Furthermore, CDCA7 is essential for loading HELLS onto chromatin, and CDCA7 harboring patient ICF mutations fails to recruit the complex to chromatin. Together, our study identifies a unique bipartite nucleosome remodeling complex where the functional remodeling activity is split between two proteins and thus delineates the defective pathway in ICF syndrome. PMID- 29339485 TI - Elevated d-2-hydroxyglutarate during colitis drives progression to colorectal cancer. AB - d-2-hydroxyglutarate (D2HG) is produced in the tricarboxylic acid cycle and is quickly converted to alpha-ketoglutarate by d-2-hydroxyglutarate dehydrogenase (D2HGDH). In a mouse model of colitis-associated colon cancer (CAC), urine level of D2HG during colitis correlates positively with subsequent polyp counts and severity of dysplasia. The i.p. injection of D2HG results in delayed recovery from colitis and severe tumorigenesis. The colonic expression of D2HGDH is decreased in ulcerative colitis (UC) patients at baseline who progress to cancer. Hypoxia-inducible factor (Hif)-1alpha is a key regulator of D2HGDH transcription. Our study identifies urine D2HG and tissue D2HGDH expression as biomarkers to identify patients at risk for progressing from colitis to cancer. The D2HG/D2HGDH pathway provides potential therapeutic targets for the treatment of CAC. PMID- 29339487 TI - Uncovering the role of the East Asian jet stream and heterogeneities in atmospheric rivers affecting the western United States. AB - Atmospheric rivers (ARs) exert major socioeconomic repercussions along the US West Coast by inducing heavy rainfall, flooding, strong winds, and storm surge. Despite the significant societal and economic repercussions of these storms, our understanding of the physical drivers responsible for their interannual variability is limited, with different climate modes identified as possible mechanisms. Here we show that the Pacific-Japan (PJ) teleconnections/patterns and the East Asian subtropical jet (EASJ) exhibit a strong linkage with the total frequency of ARs making landfall over the western United States, much stronger than the other potential climate modes previously considered. While our findings indicate that the PJ pattern and EASJ are the most relevant climate modes driving the overall AR activity, we also uncover heterogeneities in AR tracks. Specifically, we show that not all ARs making landfall along the West Coast come from a single population, but rather that it is possible to stratify these storms into three clusters. While the PJ pattern and EASJ are major drivers of AR activity for two clusters, the cluster that primarily affects the US Southwest is largely driven by other climate modes [El Nino Southern Oscillation (ENSO), the Atlantic meridional mode (AMM), the Pacific-North America (PNA) teleconnection pattern, and the North Pacific Gyre Oscillation (NPGO)]. Therefore, important regional differences exist and this information can substantially enhance our ability to predict and prepare for these storms and their impacts. PMID- 29339486 TI - Cell-type-specific role for nucleus accumbens neuroligin-2 in depression and stress susceptibility. AB - Behavioral coping strategies are critical for active resilience to stress and depression; here we describe a role for neuroligin-2 (NLGN-2) in the nucleus accumbens (NAc). Neuroligins (NLGN) are a family of neuronal postsynaptic cell adhesion proteins that are constituents of the excitatory and inhibitory synapse. Importantly, NLGN-3 and NLGN-4 mutations are strongly implicated as candidates underlying the development of neuropsychiatric disorders with social disturbances such as autism, but the role of NLGN-2 in neuropsychiatric disease states is unclear. Here we show a reduction in NLGN-2 gene expression in the NAc of patients with major depressive disorder. Chronic social defeat stress in mice also decreases NLGN-2 selectively in dopamine D1-positive cells, but not dopamine D2-positive cells, within the NAc of stress-susceptible mice. Functional NLGN-2 knockdown produces bidirectional, cell-type-specific effects: knockdown in dopamine D1-positive cells promotes subordination and stress susceptibility, whereas knockdown in dopamine D2-positive cells mediates active defensive behavior. These findings establish a behavioral role for NAc NLGN-2 in stress and depression; provide a basis for targeted, cell-type specific therapy; and highlight the role of active behavioral coping mechanisms in stress susceptibility. PMID- 29339489 TI - Rogue waves and large deviations in deep sea. AB - The appearance of rogue waves in deep sea is investigated by using the modified nonlinear Schrodinger (MNLS) equation in one spatial dimension with random initial conditions that are assumed to be normally distributed, with a spectrum approximating realistic conditions of a unidirectional sea state. It is shown that one can use the incomplete information contained in this spectrum as prior and supplement this information with the MNLS dynamics to reliably estimate the probability distribution of the sea surface elevation far in the tail at later times. Our results indicate that rogue waves occur when the system hits unlikely pockets of wave configurations that trigger large disturbances of the surface height. The rogue wave precursors in these pockets are wave patterns of regular height, but with a very specific shape that is identified explicitly, thereby allowing for early detection. The method proposed here combines Monte Carlo sampling with tools from large deviations theory that reduce the calculation of the most likely rogue wave precursors to an optimization problem that can be solved efficiently. This approach is transferable to other problems in which the system's governing equations contain random initial conditions and/or parameters. PMID- 29339488 TI - Ultrafast imaging of cell elasticity with optical microelastography. AB - Elasticity is a fundamental cellular property that is related to the anatomy, functionality, and pathological state of cells and tissues. However, current techniques based on cell deformation, atomic force microscopy, or Brillouin scattering are rather slow and do not always accurately represent cell elasticity. Here, we have developed an alternative technique by applying shear wave elastography to the micrometer scale. Elastic waves were mechanically induced in live mammalian oocytes using a vibrating micropipette. These audible frequency waves were observed optically at 200,000 frames per second and tracked with an optical flow algorithm. Whole-cell elasticity was then mapped using an elastography method inspired by the seismology field. Using this approach we show that the elasticity of mouse oocytes is decreased when the oocyte cytoskeleton is disrupted with cytochalasin B. The technique is fast (less than 1 ms for data acquisition), precise (spatial resolution of a few micrometers), able to map internal cell structures, and robust and thus represents a tractable option for interrogating biomechanical properties of diverse cell types. PMID- 29339490 TI - Structural basis of sterol recognition and nonvesicular transport by lipid transfer proteins anchored at membrane contact sites. AB - Membrane contact sites (MCSs) in eukaryotic cells are hotspots for lipid exchange, which is essential for many biological functions, including regulation of membrane properties and protein trafficking. Lipid transfer proteins anchored at membrane contact sites (LAMs) contain sterol-specific lipid transfer domains [StARkin domain (SD)] and multiple targeting modules to specific membrane organelles. Elucidating the structural mechanisms of targeting and ligand recognition by LAMs is important for understanding the interorganelle communication and exchange at MCSs. Here, we determined the crystal structures of the yeast Lam6 pleckstrin homology (PH)-like domain and the SDs of Lam2 and Lam4 in the apo form and in complex with ergosterol. The Lam6 PH-like domain displays a unique PH domain fold with a conserved N-terminal alpha-helix. The Lam6 PH-like domain lacks the basic surface for phosphoinositide binding, but contains hydrophobic patches on its surface, which are critical for targeting to endoplasmic reticulum (ER)-mitochondrial contacts. Structures of the LAM SDs display a helix-grip fold with a hydrophobic cavity and a flexible Omega1-loop as a lid. Ergosterol is bound to the pocket in a head-down orientation, with its hydrophobic acyl group located in the tunnel entrance. The Omega1-loop in an open conformation is essential for ergosterol binding by direct hydrophobic interaction. Structural comparison suggested that the sterol binding mode of the Lam2 SD2 is likely conserved among the sterol transfer proteins of the StARkin superfamily. Structural models of full-length Lam2 correlated with the sterol transport function at the membrane contact sites. PMID- 29339491 TI - Kinase-independent function of E-type cyclins in liver cancer. AB - E-type cyclins (cyclins E1 and E2) are components of the core cell cycle machinery and are overexpressed in many human tumor types. E cyclins are thought to drive tumor cell proliferation by activating the cyclin-dependent kinase 2 (CDK2). The cyclin E1 gene represents the site of recurrent integration of the hepatitis B virus in the pathogenesis of hepatocellular carcinoma, and this event is associated with strong up-regulation of cyclin E1 expression. Regardless of the underlying mechanism of tumorigenesis, the majority of liver cancers overexpress E-type cyclins. Here we used conditional cyclin E knockout mice and a liver cancer model to test the requirement for the function of E cyclins in liver tumorigenesis. We show that a ubiquitous, global shutdown of E cyclins did not visibly affect postnatal development or physiology of adult mice. However, an acute ablation of E cyclins halted liver cancer progression. We demonstrated that also human liver cancer cells critically depend on E cyclins for proliferation. In contrast, we found that the function of the cyclin E catalytic partner, CDK2, is dispensable in liver cancer cells. We observed that E cyclins drive proliferation of tumor cells in a CDK2- and kinase-independent mechanism. Our study suggests that compounds which degrade or inhibit cyclin E might represent a highly selective therapeutic strategy for patients with liver cancer, as these compounds would selectively cripple proliferation of tumor cells, while sparing normal tissues. PMID- 29339492 TI - Cytocapsular tubes conduct cell translocation. AB - Cell locomotion is essential for multicellular organism embryo development, organ homeostasis, tissue regeneration, immune responses, and tumor metastasis. Here we report that single mammalian cells can generate two extracellular membranous compartments: cytocapsulae and cytocapsular tubes. Cells migrate in cytocapsulae and engender cytocapsular tubes, which exhibit pleiotropic biological functions and provide tubular routes for directed cell transportation. Ultrastructural analysis by electron microscope revealed that nanoprotrusions surround and anchor cytocapsular tubes in place. Multiple cytocapsular tubes interconnect and form networks supporting directed cell transportation in diverse directions. Enhanced translation initiation factor eIF4E up-regulates translation of transcripts encoding proteins important for organelle development. Thus, this study proposes a mechanism of directed cell translocation in cytocapsular tubes, which may facilitate the management of diseases, including tumor metastasis. PMID- 29339493 TI - Emergent chirality in the electric polarization texture of titanate superlattices. AB - Chirality is a geometrical property by which an object is not superimposable onto its mirror image, thereby imparting a handedness. Chirality determines many important properties in nature-from the strength of the weak interactions according to the electroweak theory in particle physics to the binding of enzymes with naturally occurring amino acids or sugars, reactions that are fundamental for life. In condensed matter physics, the prediction of topologically protected magnetic skyrmions and related spin textures in chiral magnets has stimulated significant research. If the magnetic dipoles were replaced by their electrical counterparts, then electrically controllable chiral devices could be designed. Complex oxide BaTiO3/SrTiO3 nanocomposites and PbTiO3/SrTiO3 superlattices are perfect candidates, since "polar vortices," in which a continuous rotation of ferroelectric polarization spontaneously forms, have been recently discovered. Using resonant soft X-ray diffraction, we report the observation of a strong circular dichroism from the interaction between circularly polarized light and the chiral electric polarization texture that emerges in PbTiO3/SrTiO3 superlattices. This hallmark of chirality is explained by a helical rotation of electric polarization that second-principles simulations predict to reside within complex 3D polarization textures comprising ordered topological line defects. The handedness of the texture can be topologically characterized by the sign of the helicity number of the chiral line defects. This coupling between the optical and novel polar properties could be exploited to encode chiral signatures into photon or electron beams for information processing. PMID- 29339494 TI - Strongly enhanced bacterial bioluminescence with the ilux operon for single-cell imaging. AB - Bioluminescence imaging of single cells is often complicated by the requirement of exogenous luciferins that can be poorly cell-permeable or produce high background signal. Bacterial bioluminescence is unique in that it uses reduced flavin mononucleotide as a luciferin, which is abundant in all cells, making this system purely genetically encodable by the lux operon. Unfortunately, the use of bacterial bioluminescence has been limited by its low brightness compared with other luciferases. Here, we report the generation of an improved lux operon named ilux with an approximately sevenfold increased brightness when expressed in Escherichia coli; ilux can be used to image single E. coli cells with enhanced spatiotemporal resolution over several days. In addition, since only metabolically active cells produce bioluminescent signal, we show that ilux can be used to observe the effect of different antibiotics on cell viability on the single-cell level. PMID- 29339495 TI - Streamlined circular proximity ligation assay provides high stringency and compatibility with low-affinity antibodies. AB - Proximity ligation assay (PLA) is a powerful tool for quantitative detection of protein biomarkers in biological fluids and tissues. Here, we present the circular proximity ligation assay (c-PLA), a highly specific protein detection method that outperforms traditional PLA in stringency, ease of use, and compatibility with low-affinity reagents. In c-PLA, two proximity probes bind to an analyte, providing a scaffolding that positions two free oligonucleotides such that they can be ligated into a circular DNA molecule. This assay format stabilizes antigen proximity probe complexes and enhances stringency by reducing the probability of random background ligation events. Circle formation also increases selectivity, since the uncircularized DNA can be removed enzymatically. We compare this method with traditional PLA on several biomarkers and show that the higher stringency for c-PLA improves reproducibility and enhances sensitivity in both buffer and human plasma. The limit of detection ranges from femtomolar to nanomolar concentrations for both methods. Kinetic analyses using surface plasmon resonance (SPR) and biolayer interferometry (BLI) reveal that the variation in limit of detection is due to the variation in antibody affinity and that c-PLA outperforms traditional PLA for low-affinity antibodies. The lower background signal can be used to increase proximity probe concentration while maintaining a high signal-to-noise ratio, thereby enabling the use of low-affinity reagents in a homogeneous assay format. We anticipate that the advantages of c-PLA will be useful in a variety of clinical protein detection applications where high affinity reagents are lacking. PMID- 29339496 TI - Thymic stromal lymphopoietin drives the development of IL-13+ Th2 cells. AB - T helper 2 (Th2) cells are pivotal in the development of allergy. Allergen exposure primes IL-4+ Th2 cells in lymph node, but production of effector cytokines including IL-5 and IL-13 is thought to require additional signals from antigen and the environment. Here we report that a substantial proportion of naive CD4+ T cells in spleen and lymph node express receptors for the epithelium derived inflammatory cytokine thymic stromal lymphopoietin (TSLP). Culture of naive CD4+ T cells in anti-(a)CD3, aCD28, and TSLP-supplemented Th2 conditions enabled the development of a unique population of IL-13-single positive (IL-13 SP) CD4+ T cells; TSLP and Th2 conditions were both required for their development. Sorting experiments revealed that IL-13-SP Th2 cells originated from IL-4-negative precursors and coexpressed transcripts for the Th2 cytokines IL-5 and IL-9. In vivo, high TSLP levels acted directly on CD4+ T cells to induce the development of IL-13-SP and IL-4+IL-13+ double-positive populations in lymph node. These cells were phenotypically similar to Th2 effector cells and were CXCR5lowPD1low and expressed low levels of Bcl6 and Il21 transcripts and high levels of Gata3, Il3, and Il5 Our findings suggest a role of TSLP in directly promoting Th2 cell effector function and support the notion of TSLP as a key driver of Th2 inflammation. PMID- 29339497 TI - Ocean convergence and the dispersion of flotsam. AB - Floating oil, plastics, and marine organisms are continually redistributed by ocean surface currents. Prediction of their resulting distribution on the surface is a fundamental, long-standing, and practically important problem. The dominant paradigm is dispersion within the dynamical context of a nondivergent flow: objects initially close together will on average spread apart but the area of surface patches of material does not change. Although this paradigm is likely valid at mesoscales, larger than 100 km in horizontal scale, recent theoretical studies of submesoscales (less than ~10 km) predict strong surface convergences and downwelling associated with horizontal density fronts and cyclonic vortices. Here we show that such structures can dramatically concentrate floating material. More than half of an array of ~200 surface drifters covering ~20 * 20 km2 converged into a 60 * 60 m region within a week, a factor of more than 105 decrease in area, before slowly dispersing. As predicted, the convergence occurred at density fronts and with cyclonic vorticity. A zipperlike structure may play an important role. Cyclonic vorticity and vertical velocity reached 0.001 s-1 and 0.01 ms-1, respectively, which is much larger than usually inferred. This suggests a paradigm in which nearby objects form submesoscale clusters, and these clusters then spread apart. Together, these effects set both the overall extent and the finescale texture of a patch of floating material. Material concentrated at submesoscale convergences can create unique communities of organisms, amplify impacts of toxic material, and create opportunities to more efficiently recover such material. PMID- 29339499 TI - Supercritical CO2 uptake by nonswelling phyllosilicates. AB - Interactions between supercritical (sc) CO2 and minerals are important when CO2 is injected into geologic formations for storage and as working fluids for enhanced oil recovery, hydraulic fracturing, and geothermal energy extraction. It has previously been shown that at the elevated pressures and temperatures of the deep subsurface, scCO2 alters smectites (typical swelling phyllosilicates). However, less is known about the effects of scCO2 on nonswelling phyllosilicates (illite and muscovite), despite the fact that the latter are the dominant clay minerals in deep subsurface shales and mudstones. Our studies conducted by using single crystals, combining reaction (incubation with scCO2), visualization [atomic force microscopy (AFM)], and quantifications (AFM, X-ray photoelectron spectroscopy, X-ray diffraction, and off-gassing measurements) revealed unexpectedly high CO2 uptake that far exceeded its macroscopic surface area. Results from different methods collectively suggest that CO2 partially entered the muscovite interlayers, although the pathways remain to be determined. We hypothesize that preferential dissolution at weaker surface defects and frayed edges allows CO2 to enter the interlayers under elevated pressure and temperature, rather than by diffusing solely from edges deeply into interlayers. This unexpected uptake of CO2, can increase CO2 storage capacity by up to ~30% relative to the capacity associated with residual trapping in a 0.2-porosity sandstone reservoir containing up to 18 mass % of illite/muscovite. This excess CO2 uptake constitutes a previously unrecognized potential trapping mechanism. PMID- 29339498 TI - MAFA missense mutation causes familial insulinomatosis and diabetes mellitus. AB - The beta-cell-enriched MAFA transcription factor plays a central role in regulating glucose-stimulated insulin secretion while also demonstrating oncogenic transformation potential in vitro. No disease-causing MAFA variants have been previously described. We investigated a large pedigree with autosomal dominant inheritance of diabetes mellitus or insulinomatosis, an adult-onset condition of recurrent hyperinsulinemic hypoglycemia caused by multiple insulin secreting neuroendocrine tumors of the pancreas. Using exome sequencing, we identified a missense MAFA mutation (p.Ser64Phe, c.191C>T) segregating with both phenotypes of insulinomatosis and diabetes. This mutation was also found in a second unrelated family with the same clinical phenotype, while no germline or somatic MAFA mutations were identified in nine patients with sporadic insulinomatosis. In the two families, insulinomatosis presented more frequently in females (eight females/two males) and diabetes more often in males (12 males/four females). Four patients from the index family, including two homozygotes, had a history of congenital cataract and/or glaucoma. The p.Ser64Phe mutation was found to impair phosphorylation within the transactivation domain of MAFA and profoundly increased MAFA protein stability under both high and low glucose concentrations in beta-cell lines. In addition, the transactivation potential of p.Ser64Phe MAFA in beta-cell lines was enhanced compared with wild type MAFA. In summary, the p.Ser64Phe missense MAFA mutation leads to familial insulinomatosis or diabetes by impacting MAFA protein stability and transactivation ability. The human phenotypes associated with the p.Ser64Phe MAFA missense mutation reflect both the oncogenic capacity of MAFA and its key role in islet beta-cell activity. PMID- 29339501 TI - Correction to Supporting Information for Carlson et al., Effect of oil palm sustainability certification on deforestation and fire in Indonesia. PMID- 29339500 TI - Regulation of the stability of RGF1 receptor by the ubiquitin-specific proteases UBP12/UBP13 is critical for root meristem maintenance. AB - ROOT MERISTEM GROWTH FACTOR (RGF) 1 is an important peptide hormone that regulates root growth. Upon binding to its receptor, RGFR1, RGF1 regulates the expression of two transcription factors, PLETHORA 1 and 2 (PLT1/2), to influence root meristem development. Here, we show that the ubiquitin-specific proteases UBP12 and UBP13 are positive regulators of root meristem development and that UBP13 interacts directly with RGF1 receptor (RGFR1) and its close homolog RGFR2. The ubp12,13 double-mutant root is completely insensitive to exogenous applied RGF1. Consistent with this result, RGF1-induced ubiquitination and turnover of RGFR1 protein were accelerated in ubp12,13-mutant plants but were delayed in transgenic plants overexpressing UBP13 Genetic analysis showed that PLT2 or RGFR1 overexpression partially rescued the short-root phenotype and the reduced cortical root meristem cell number in ubp12,13 plants. Together, our results demonstrate that UBP12/13 are regulators of the RGF1-RGFR1-PLT1/2 signaling pathway and that UBP12/13 can counteract RGF1-induced RGFR1 ubiquitination, stabilize RGFR1, and maintain root cell sensitivity to RGF1. PMID- 29339502 TI - Protein aggregation of the p63 transcription factor underlies severe skin fragility in AEC syndrome. AB - The p63 gene encodes a master regulator of epidermal commitment, development, and differentiation. Heterozygous mutations in the C-terminal domain of the p63 gene can cause ankyloblepharon-ectodermal defects-cleft lip/palate (AEC) syndrome, a life-threatening disorder characterized by skin fragility and severe, long lasting skin erosions. Despite deep knowledge of p63 functions, little is known about mechanisms underlying disease pathology and possible treatments. Here, we show that multiple AEC-associated p63 mutations, but not those causative of other diseases, lead to thermodynamic protein destabilization, misfolding, and aggregation, similar to the known p53 gain-of-function mutants found in cancer. AEC mutant proteins exhibit impaired DNA binding and transcriptional activity, leading to dominant negative effects due to coaggregation with wild-type p63 and p73. Importantly, p63 aggregation occurs also in a conditional knock-in mouse model for the disorder, in which the misfolded p63 mutant protein leads to severe epidermal defects. Variants of p63 that abolish aggregation of the mutant proteins are able to rescue p63's transcriptional function in reporter assays as well as in a human fibroblast-to-keratinocyte conversion assay. Our studies reveal that AEC syndrome is a protein aggregation disorder and opens avenues for therapeutic intervention. PMID- 29339503 TI - Heteromeric interactions regulate butyrophilin (BTN) and BTN-like molecules governing gammadelta T cell biology. AB - The long-held view that gamma delta (gammadelta) T cells in mice and humans are fundamentally dissimilar, as are gammadelta cells in blood and peripheral tissues, has been challenged by emerging evidence of the cells' regulation by butyrophilin (BTN) and butyrophilin-like (BTNL) molecules. Thus, murine Btnl1 and the related gene, Skint1, mediate T cell receptor (TCR)-dependent selection of murine intraepithelial gammadelta T cell repertoires in gut and skin, respectively; BTNL3 and BTNL8 are TCR-dependent regulators of human gut gammadelta cells; and BTN3A1 is essential for TCR-dependent activation of human peripheral blood Vgamma9Vdelta2+ T cells. However, some observations concerning BTN/Btnl molecules continue to question the extent of mechanistic conservation. In particular, murine and human gut gammadelta cell regulation depends on pairings of Btnl1 and Btnl6 and BTNL3 and BTNL8, respectively, whereas blood gammadelta cells are reported to be regulated by BTN3A1 independent of other BTNs. Addressing this paradox, we show that BTN3A2 regulates the subcellular localization of BTN3A1, including functionally important associations with the endoplasmic reticulum (ER), and is specifically required for optimal BTN3A1 mediated activation of Vgamma9Vdelta2+ T cells. Evidence that BTNL3/BTNL8 and Btnl1/Btnl6 likewise associate with the ER reinforces the prospect of broadly conserved mechanisms underpinning the selection and activation of gammadelta cells in mice and humans, and in blood and extralymphoid sites. PMID- 29339504 TI - Complement pathway gene activation and rising circulating immune complexes characterize early disease in HIV-associated tuberculosis. AB - The transition between latent and active tuberculosis (TB) occurs before symptom onset. Better understanding of the early events in subclinical disease will facilitate the development of diagnostics and interventions that improve TB control. This is particularly relevant in the context of HIV-1 coinfection where progression of TB is more likely. In a recent study using [18F]-fluoro-2-deoxy-d glucose positron emission/computed tomography (FDG-PET/CT) on 35 asymptomatic, HIV-1-infected adults, we identified 10 participants with radiographic evidence of subclinical disease, significantly more likely to progress than the 25 participants without. To gain insight into the biological events in early disease, we performed blood-based whole genome transcriptomic analysis on these participants and 15 active patients with TB. We found transcripts representing the classical complement pathway and Fcgamma receptor 1 overabundant from subclinical stages of disease. Levels of circulating immune (antibody/antigen) complexes also increased in subclinical disease and were highly correlated with C1q transcript abundance. To validate our findings, we analyzed transcriptomic data from a publicly available dataset where samples were available in the 2 y before TB disease presentation. Transcripts representing the classical complement pathway and Fcgamma receptor 1 were also differentially expressed in the 12 mo before disease presentation. Our results indicate that levels of antibody/antigen complexes increase early in disease, associated with increased gene expression of C1q and Fcgamma receptors that bind them. Understanding the role this plays in disease progression may facilitate development of interventions that prevent this, leading to a more favorable outcome and may also be important to diagnostic development. PMID- 29339505 TI - Nonenzymatic release of N7-methylguanine channels repair of abasic sites into an AP endonuclease-independent pathway in Arabidopsis. AB - Abasic (apurinic/apyrimidinic, AP) sites in DNA arise from spontaneous base loss or by enzymatic removal during base excision repair. It is commonly accepted that both classes of AP site have analogous biochemical properties and are equivalent substrates for AP endonucleases and AP lyases, although the relative roles of these two types of enzymes are not well understood. We provide here genetic and biochemical evidence that, in Arabidopsis, AP sites generated by spontaneous loss of N7-methylguanine (N7-meG) are exclusively repaired through an AP endonuclease independent pathway initiated by FPG, a bifunctional DNA glycosylase with AP lyase activity. Abasic site incision catalyzed by FPG generates a single nucleotide gap with a 3'-phosphate terminus that is processed by the DNA 3' phosphatase ZDP before repair is completed. We further show that the major AP endonuclease in Arabidopsis (ARP) incises AP sites generated by enzymatic N7-meG excision but, unexpectedly, not those resulting from spontaneous N7-meG loss. These findings, which reveal previously undetected differences between products of enzymatic and nonenzymatic base release, may shed light on the evolution and biological roles of AP endonucleases and AP lyases. PMID- 29339506 TI - Development and retention of a primordial moonlighting pathway of protein modification in the absence of selection presents a puzzle. AB - Lipoic acid is synthesized by a remarkably atypical pathway in which the cofactor is assembled on its cognate proteins. An octanoyl moiety diverted from fatty acid synthesis is covalently attached to the acceptor protein, and sulfur insertion at carbons 6 and 8 of the octanoyl moiety form the lipoyl cofactor. Covalent attachment of this cofactor is required for function of several central metabolism enzymes, including the glycine cleavage H protein (GcvH). In Bacillus subtilis, GcvH is the sole substrate for lipoate assembly. Hence lipoic acid requiring 2-oxoacid dehydrogenase (OADH) proteins acquire the cofactor only by transfer from lipoylated GcvH. Lipoyl transfer has been argued to be the primordial pathway of OADH lipoylation. The Escherichia coli pathway where lipoate is directly assembled on both its GcvH and OADH proteins, is proposed to have arisen later. Because roughly 3 billion years separate the divergence of these bacteria, it is surprising that E. coli GcvH functionally substitutes for the B. subtilis protein in lipoyl transfer. Known and putative GcvHs from other bacteria and eukaryotes also substitute for B. subtilis GcvH in OADH modification. Because glycine cleavage is the primary GcvH role in ancestral bacteria that lack OADH enzymes, lipoyl transfer is a "moonlighting" function: that is, development of a new function while retaining the original function. This moonlighting has been conserved in the absence of selection by some, but not all, GcvH proteins. Moreover, Aquifex aeolicus encodes five putative GcvHs, two of which have the moonlighting function, whereas others function only in glycine cleavage. PMID- 29339508 TI - Human ectoparasites and the spread of plague in Europe during the Second Pandemic. AB - Plague, caused by the bacterium Yersinia pestis, can spread through human populations by multiple transmission pathways. Today, most human plague cases are bubonic, caused by spillover of infected fleas from rodent epizootics, or pneumonic, caused by inhalation of infectious droplets. However, little is known about the historical spread of plague in Europe during the Second Pandemic (14 19th centuries), including the Black Death, which led to high mortality and recurrent epidemics for hundreds of years. Several studies have suggested that human ectoparasite vectors, such as human fleas (Pulex irritans) or body lice (Pediculus humanus humanus), caused the rapidly spreading epidemics. Here, we describe a compartmental model for plague transmission by a human ectoparasite vector. Using Bayesian inference, we found that this model fits mortality curves from nine outbreaks in Europe better than models for pneumonic or rodent transmission. Our results support that human ectoparasites were primary vectors for plague during the Second Pandemic, including the Black Death (1346-1353), ultimately challenging the assumption that plague in Europe was predominantly spread by rats. PMID- 29339507 TI - Large-scale comparative epigenomics reveals hierarchical regulation of non-CG methylation in Arabidopsis. AB - Genome-wide characterization by next-generation sequencing has greatly improved our understanding of the landscape of epigenetic modifications. Since 2008, whole genome bisulfite sequencing (WGBS) has become the gold standard for DNA methylation analysis, and a tremendous amount of WGBS data has been generated by the research community. However, the systematic comparison of DNA methylation profiles to identify regulatory mechanisms has yet to be fully explored. Here we reprocessed the raw data of over 500 publicly available Arabidopsis WGBS libraries from various mutant backgrounds, tissue types, and stress treatments and also filtered them based on sequencing depth and efficiency of bisulfite conversion. This enabled us to identify high-confidence differentially methylated regions (hcDMRs) by comparing each test library to over 50 high-quality wild-type controls. We developed statistical and quantitative measurements to analyze the overlapping of DMRs and to cluster libraries based on their effect on DNA methylation. In addition to confirming existing relationships, we revealed unanticipated connections between well-known genes. For instance, MET1 and CMT3 were found to be required for the maintenance of asymmetric CHH methylation at nonoverlapping regions of CMT2 targeted heterochromatin. Our comparative methylome approach has established a framework for extracting biological insights via large-scale comparison of methylomes and can also be adopted for other genomics datasets. PMID- 29339509 TI - Biodegradable Piezoelectric Force Sensor. AB - Measuring vital physiological pressures is important for monitoring health status, preventing the buildup of dangerous internal forces in impaired organs, and enabling novel approaches of using mechanical stimulation for tissue regeneration. Pressure sensors are often required to be implanted and directly integrated with native soft biological systems. Therefore, the devices should be flexible and at the same time biodegradable to avoid invasive removal surgery that can damage directly interfaced tissues. Despite recent achievements in degradable electronic devices, there is still a tremendous need to develop a force sensor which only relies on safe medical materials and requires no complex fabrication process to provide accurate information on important biophysiological forces. Here, we present a strategy for material processing, electromechanical analysis, device fabrication, and assessment of a piezoelectric Poly-l-lactide (PLLA) polymer to create a biodegradable, biocompatible piezoelectric force sensor, which only employs medical materials used commonly in Food and Drug Administration-approved implants, for the monitoring of biological forces. We show the sensor can precisely measure pressures in a wide range of 0-18 kPa and sustain a reliable performance for a period of 4 d in an aqueous environment. We also demonstrate this PLLA piezoelectric sensor can be implanted inside the abdominal cavity of a mouse to monitor the pressure of diaphragmatic contraction. This piezoelectric sensor offers an appealing alternative to present biodegradable electronic devices for the monitoring of intraorgan pressures. The sensor can be integrated with tissues and organs, forming self-sensing bionic systems to enable many exciting applications in regenerative medicine, drug delivery, and medical devices. PMID- 29339510 TI - Artificial intelligence exploration of unstable protocells leads to predictable properties and discovery of collective behavior. AB - Protocell models are used to investigate how cells might have first assembled on Earth. Some, like oil-in-water droplets, can be seemingly simple models, while able to exhibit complex and unpredictable behaviors. How such simple oil-in-water systems can come together to yield complex and life-like behaviors remains a key question. Herein, we illustrate how the combination of automated experimentation and image processing, physicochemical analysis, and machine learning allows significant advances to be made in understanding the driving forces behind oil-in water droplet behaviors. Utilizing >7,000 experiments collected using an autonomous robotic platform, we illustrate how smart automation cannot only help with exploration, optimization, and discovery of new behaviors, but can also be core to developing fundamental understanding of such systems. Using this process, we were able to relate droplet formulation to behavior via predicted physical properties, and to identify and predict more occurrences of a rare collective droplet behavior, droplet swarming. Proton NMR spectroscopic and qualitative pH methods enabled us to better understand oil dissolution, chemical change, phase transitions, and droplet and aqueous phase flows, illustrating the utility of the combination of smart-automation and traditional analytical chemistry techniques. We further extended our study for the simultaneous exploration of both the oil and aqueous phases using a robotic platform. Overall, this work shows that the combination of chemistry, robotics, and artificial intelligence enables discovery, prediction, and mechanistic understanding in ways that no one approach could achieve alone. PMID- 29339511 TI - The role of obesity in exceptionally slow US mortality improvement. AB - Recent studies have described a reduction in the rate of improvement in American mortality. The pace of improvement is also slow by international standards. This paper attempts to identify the extent to which rising body mass index (BMI) is responsible for reductions in the rate of mortality improvement in the United States. The data for this study were obtained from subsequent cohorts of the National Health and Nutrition Examination Survey (NHANES III, 1988-1994; NHANES continuous, 1999-2010) and from the NHANES linked mortality files, which include follow-up into death records through December 2011. The role of BMI was estimated using Cox models comparing mortality trends in the presence and absence of adjustment for maximum lifetime BMI (Max BMI). Introducing Max BMI into a Cox model controlling for age and sex raised the annual rate of mortality decline by 0.54% (95% confidence interval 0.45-0.64%). Results were robust to the inclusion of other variables in the model, to differences in how Max BMI was measured, and to how trends were evaluated. The effect of rising Max BMI is large relative to international mortality trends and to alternative mortality futures simulated by the Social Security Administration. The increase in Max BMI over the period 1988 2011 is estimated to have reduced life expectancy at age 40 by 0.9 years in 2011 (95% confidence interval 0.7-1.1 years) and accounted for 186,000 excess deaths that year. Rising levels of BMI have prevented the United States from enjoying the full benefits of factors working to improve mortality. PMID- 29339512 TI - Neural preservation underlies speech improvement from auditory deprivation in young cochlear implant recipients. AB - Although cochlear implantation enables some children to attain age-appropriate speech and language development, communicative delays persist in others, and outcomes are quite variable and difficult to predict, even for children implanted early in life. To understand the neurobiological basis of this variability, we used presurgical neural morphological data obtained from MRI of individual pediatric cochlear implant (CI) candidates implanted younger than 3.5 years to predict variability of their speech-perception improvement after surgery. We first compared neuroanatomical density and spatial pattern similarity of CI candidates to that of age-matched children with normal hearing, which allowed us to detail neuroanatomical networks that were either affected or unaffected by auditory deprivation. This information enables us to build machine-learning models to predict the individual children's speech development following CI. We found that regions of the brain that were unaffected by auditory deprivation, in particular the auditory association and cognitive brain regions, produced the highest accuracy, specificity, and sensitivity in patient classification and the most precise prediction results. These findings suggest that brain areas unaffected by auditory deprivation are critical to developing closer to typical speech outcomes. Moreover, the findings suggest that determination of the type of neural reorganization caused by auditory deprivation before implantation is valuable for predicting post-CI language outcomes for young children. PMID- 29339513 TI - Projecting one's own spatial bias onto others during a theory-of-mind task. AB - Many people show a left-right bias in visual processing. We measured spatial bias in neurotypical participants using a variant of the line bisection task. In the same participants, we measured performance in a social cognition task. This theory-of-mind task measured whether each participant had a processing-speed bias toward the right of, or left of, a cartoon agent about which the participant was thinking. Crucially, the cartoon was rotated such that what was left and right with respect to the cartoon was up and down with respect to the participant. Thus, a person's own left-right bias could not align directly onto left and right with respect to the cartoon head. Performance on the two tasks was significantly correlated. People who had a natural bias toward processing their own left side of space were quicker to process how the cartoon might think about objects to the left side of its face, and likewise for a rightward bias. One possible interpretation of these results is that the act of processing one's own personal space shares some of the same underlying mechanisms as the social cognitive act of reconstructing someone else's processing of their space. PMID- 29339514 TI - Flexibility of thought in high creative individuals represented by percolation analysis. AB - Flexibility of thought is theorized to play a critical role in the ability of high creative individuals to generate novel and innovative ideas. However, this has been examined only through indirect behavioral measures. Here we use network percolation analysis (removal of links in a network whose strength is below an increasing threshold) to computationally examine the robustness of the semantic memory networks of low and high creative individuals. Robustness of a network indicates its flexibility and thus can be used to quantify flexibility of thought as related to creativity. This is based on the assumption that the higher the robustness of the semantic network, the higher its flexibility. Our analysis reveals that the semantic network of high creative individuals is more robust to network percolation compared with the network of low creative individuals and that this higher robustness is related to differences in the structure of the networks. Specifically, we find that this higher robustness is related to stronger links connecting between different components of similar semantic words in the network, which may also help to facilitate spread of activation over their network. Thus, we directly and quantitatively examine the relation between flexibility of thought and creative ability. Our findings support the associative theory of creativity, which posits that high creative ability is related to a flexible structure of semantic memory. Finally, this approach may have further implications, by enabling a quantitative examination of flexibility of thought, in both healthy and clinical populations. PMID- 29339515 TI - MERS-CoV and H5N1 influenza virus antagonize antigen presentation by altering the epigenetic landscape. AB - Convergent evolution dictates that diverse groups of viruses will target both similar and distinct host pathways to manipulate the immune response and improve infection. In this study, we sought to leverage this uneven viral antagonism to identify critical host factors that govern disease outcome. Utilizing a systems based approach, we examined differential regulation of IFN-gamma-dependent genes following infection with robust respiratory viruses including influenza viruses [A/influenza/Vietnam/1203/2004 (H5N1-VN1203) and A/influenza/California/04/2009 (H1N1-CA04)] and coronaviruses [severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome CoV (MERS-CoV)]. Categorizing by function, we observed down-regulation of gene expression associated with antigen presentation following both H5N1-VN1203 and MERS-CoV infection. Further examination revealed global down-regulation of antigen-presentation gene expression, which was confirmed by proteomics for both H5N1-VN1203 and MERS-CoV infection. Importantly, epigenetic analysis suggested that DNA methylation, rather than histone modification, plays a crucial role in MERS-CoV-mediated antagonism of antigen-presentation gene expression; in contrast, H5N1-VN1203 likely utilizes a combination of epigenetic mechanisms to target antigen presentation. Together, the results indicate a common mechanism utilized by H5N1 VN1203 and MERS-CoV to modulate antigen presentation and the host adaptive immune response. PMID- 29339516 TI - Human airway branch variation and chronic obstructive pulmonary disease. AB - Susceptibility to chronic obstructive pulmonary disease (COPD) beyond cigarette smoking is incompletely understood, although several genetic variants associated with COPD are known to regulate airway branch development. We demonstrate that in vivo central airway branch variants are present in 26.5% of the general population, are unchanged over 10 y, and exhibit strong familial aggregation. The most common airway branch variant is associated with COPD in two cohorts (n = 5,054), with greater central airway bifurcation density, and with emphysema throughout the lung. The second most common airway branch variant is associated with COPD among smokers, with narrower airway lumens in all lobes, and with genetic polymorphisms within the FGF10 gene. We conclude that central airway branch variation, readily detected by computed tomography, is a biomarker of widely altered lung structure with a genetic basis and represents a COPD susceptibility factor. PMID- 29339517 TI - Infected erythrocytes expressing DC13 PfEMP1 differ from recombinant proteins in EPCR-binding function. AB - Recent advances have identified a new paradigm for cerebral malaria pathogenesis in which endothelial protein C receptor (EPCR) is a major host receptor for sequestration of Plasmodium falciparum-infected erythrocytes (IEs) in the brain and other vital organs. The parasite adhesins that bind EPCR are members of the IE variant surface antigen family Plasmodium falciparum erythrocyte membrane protein 1 (PfEMP1) containing specific adhesion domains called domain cassette (DC) 8 and DC13. The binding interaction site between PfEMP1 and EPCR has been mapped by biophysical and crystallography studies using recombinant proteins. However, studies examining the interaction of native PfEMP1 on the IE surface with EPCR are few. We aimed to study binding to EPCR by IEs expressing DC8 and DC13 PfEMP1 variants whose recombinant proteins have been used in key prior functional and structural studies. IE binding to EPCR immobilized on plastic and on human brain endothelial cells was examined in static and flow adhesion assays. Unexpectedly, we found that IEs expressing the DC13 PfEMP1 variant HB3var03 or IT4var07 did not bind to EPCR on plastic and the binding of these variants to brain endothelial cells was not dependent on EPCR. IEs expressing the DC8 variant IT4var19 did bind to EPCR, but this interaction was inhibited if normal human serum or plasma was present, raising the possibility that IE-EPCR interaction may be prevented by plasma components under physiological conditions. These data highlight a discrepancy in EPCR-binding activity between PfEMP1 recombinant proteins and IEs, and indicate the critical need for further research to understand the pathophysiological significance of the PfEMP1-EPCR interaction. PMID- 29339518 TI - Iterative optimization yields Mcl-1-targeting stapled peptides with selective cytotoxicity to Mcl-1-dependent cancer cells. AB - Bcl-2 family proteins regulate apoptosis, and aberrant interactions of overexpressed antiapoptotic family members such as Mcl-1 promote cell transformation, cancer survival, and resistance to chemotherapy. Discovering potent and selective Mcl-1 inhibitors that can relieve apoptotic blockades is thus a high priority for cancer research. An attractive strategy for disabling Mcl-1 involves using designer peptides to competitively engage its binding groove, mimicking the structural mechanism of action of native sensitizer BH3 only proteins. We transformed Mcl-1-binding peptides into alpha-helical, cell penetrating constructs that are selectively cytotoxic to Mcl-1-dependent cancer cells. Critical to the design of effective inhibitors was our introduction of an all-hydrocarbon cross-link or "staple" that stabilizes alpha-helical structure, increases target binding affinity, and independently confers binding specificity for Mcl-1 over related Bcl-2 family paralogs. Two crystal structures of complexes at 1.4 A and 1.9 A resolution demonstrate how the hydrophobic staple induces an unanticipated structural rearrangement in Mcl-1 upon binding. Systematic sampling of staple location and iterative optimization of peptide sequence in accordance with established design principles provided peptides that target intracellular Mcl-1. This work provides proof of concept for the development of potent, selective, and cell-permeable stapled peptides for therapeutic targeting of Mcl-1 in cancer, applying a design and validation workflow applicable to a host of challenging biomedical targets. PMID- 29339519 TI - Evidence for convergent evolution of SINE-directed Staufen-mediated mRNA decay. AB - Primate-specific Alu short interspersed elements (SINEs) as well as rodent specific B and ID (B/ID) SINEs can promote Staufen-mediated decay (SMD) when present in mRNA 3'-untranslated regions (3'-UTRs). The transposable nature of SINEs, their presence in long noncoding RNAs, their interactions with Staufen, and their rapid divergence in different evolutionary lineages suggest they could have generated substantial modification of posttranscriptional gene-control networks during mammalian evolution. Some of the variation in SMD regulation produced by SINE insertion might have had a similar regulatory effect in separate mammalian lineages, leading to parallel evolution of the Staufen network by independent expansion of lineage-specific SINEs. To explore this possibility, we searched for orthologous gene pairs, each carrying a species-specific 3'-UTR SINE and each regulated by SMD, by measuring changes in mRNA abundance after individual depletion of two SMD factors, Staufen1 (STAU1) and UPF1, in both human and mouse myoblasts. We identified and confirmed orthologous gene pairs with 3' UTR SINEs that independently function in SMD control of myoblast metabolism. Expanding to other species, we demonstrated that SINE-directed SMD likely emerged in both primate and rodent lineages >20-25 million years ago. Our work reveals a mechanism for the convergent evolution of posttranscriptional gene regulatory networks in mammals by species-specific SINE transposition and SMD. PMID- 29339520 TI - Targeted knockout of a chemokine-like gene increases anxiety and fear responses. AB - Emotional responses, such as fear and anxiety, are fundamentally important behavioral phenomena with strong fitness components in most animal species. Anxiety-related disorders continue to represent a major unmet medical need in our society, mostly because we still do not fully understand the mechanisms of these diseases. Animal models may speed up discovery of these mechanisms. The zebrafish is a highly promising model organism in this field. Here, we report the identification of a chemokine-like gene family, samdori (sam), and present functional characterization of one of its members, sam2 We show exclusive mRNA expression of sam2 in the CNS, predominantly in the dorsal habenula, telencephalon, and hypothalamus. We found knockout (KO) zebrafish to exhibit altered anxiety-related responses in the tank, scototaxis and shoaling assays, and increased crh mRNA expression in their hypothalamus compared with wild-type fish. To investigate generalizability of our findings to mammals, we developed a Sam2 KO mouse and compared it to wild-type littermates. Consistent with zebrafish findings, homozygous KO mice exhibited signs of elevated anxiety. We also found bath application of purified SAM2 protein to increase inhibitory postsynaptic transmission onto CRH neurons of the paraventricular nucleus. Finally, we identified a human homolog of SAM2, and were able to refine a candidate gene region encompassing SAM2, among 21 annotated genes, which is associated with intellectual disability and autism spectrum disorder in the 12q14.1 deletion syndrome. Taken together, these results suggest a crucial and evolutionarily conserved role of sam2 in regulating mechanisms associated with anxiety. PMID- 29339521 TI - Immunogenetic novelty confers a selective advantage in host-pathogen coevolution. AB - The major histocompatibility complex (MHC) is crucial to the adaptive immune response of vertebrates and is among the most polymorphic gene families known. Its high diversity is usually attributed to selection imposed by fast-evolving pathogens. Pathogens are thought to evolve to escape recognition by common immune alleles, and, hence, novel MHC alleles, introduced through mutation, recombination, or gene flow, are predicted to give hosts superior resistance. Although this theoretical prediction underpins host-pathogen "Red Queen" coevolution, it has not been demonstrated in the context of natural MHC diversity. Here, we experimentally tested whether novel MHC variants (both alleles and functional "supertypes") increased resistance of guppies (Poecilia reticulata) to a common ectoparasite (Gyrodactylus turnbulli). We used exposure controlled infection trials with wild-sourced parasites, and Gyrodactylus-naive host fish that were F2 descendants of crossed wild populations. Hosts carrying MHC variants (alleles or supertypes) that were new to a given parasite population experienced a 35-37% reduction in infection intensity, but the number of MHC variants carried by an individual, analogous to heterozygosity in single-locus systems, was not a significant predictor. Our results provide direct evidence of novel MHC variant advantage, confirming a fundamental mechanism underpinning the exceptional polymorphism of this gene family and highlighting the role of immunogenetic novelty in host-pathogen coevolution. PMID- 29339523 TI - DNA synthesis from diphosphate substrates by DNA polymerases. AB - The activity of DNA polymerase underlies numerous biotechnologies, cell division, and therapeutics, yet the enzyme remains incompletely understood. We demonstrate that both thermostable and mesophilic DNA polymerases readily utilize deoxyribonucleoside diphosphates (dNDPs) for DNA synthesis and inorganic phosphate for the reverse reaction, that is, phosphorolysis of DNA. For Taq DNA polymerase, the KMs of the dNDP and phosphate substrates are ~20 and 200 times higher than for dNTP and pyrophosphate, respectively. DNA synthesis from dNDPs is about 17 times slower than from dNTPs, and DNA phosphorolysis about 200 times less efficient than pyrophosphorolysis. Such parameters allow DNA replication without requiring coupled metabolism to sequester the phosphate products, which consequently do not pose a threat to genome stability. This mechanism contrasts with DNA synthesis from dNTPs, which yield high-energy pyrophosphates that have to be hydrolyzed to phosphates to prevent the reverse reaction. Because the last common ancestor was likely a thermophile, dNDPs are plausible substrates for genome replication on early Earth and may represent metabolic intermediates later replaced by the higher-energy triphosphates. PMID- 29339522 TI - Effect of beta-agonists on LAM progression and treatment. AB - Lymphangioleiomyomatosis (LAM), a rare disease of women, is associated with cystic lung destruction resulting from the proliferation of abnormal smooth muscle-like LAM cells with mutations in the tuberous sclerosis complex (TSC) genes TSC1 and/or TSC2 The mutant genes and encoded proteins are responsible for activation of the mechanistic target of rapamycin (mTOR), which is inhibited by sirolimus (rapamycin), a drug used to treat LAM. Patients who have LAM may also be treated with bronchodilators for asthma-like symptoms due to LAM. We observed stabilization of forced expiratory volume in 1 s over time in patients receiving sirolimus and long-acting beta-agonists with short-acting rescue inhalers compared with patients receiving only sirolimus. Because beta-agonists increase cAMP and PKA activity, we investigated effects of PKA activation on the mTOR pathway. Human skin TSC2+/- fibroblasts or LAM lung cells incubated short-term with isoproterenol (beta-agonist) showed a sirolimus-independent increase in phosphorylation of S6, a downstream effector of the mTOR pathway, and increased cell growth. Cells incubated long-term with isoproterenol, which may lead to beta adrenergic receptor desensitization, did not show increased S6 phosphorylation. Inhibition of PKA blocked the isoproterenol effect on S6 phosphorylation. Thus, activation of PKA by beta-agonists increased phospho-S6 independent of mTOR, an effect abrogated by beta-agonist-driven receptor desensitization. In agreement, retrospective clinical data from patients with LAM suggested that a combination of bronchodilators in conjunction with sirolimus may be preferable to sirolimus alone for stabilization of pulmonary function. PMID- 29339524 TI - Communication in context: Interpreting promises in an experiment on competition and trust. AB - How much do people lie, and how much do people trust communication when lying is possible? An important step toward answering these questions is understanding how communication is interpreted. This paper establishes in a canonical experiment that competition can alter the shared communication code: the commonly understood meaning of messages. We study a sender-receiver game in which the sender dictates how to share $10 with the receiver, if the receiver participates. The receiver has an outside option and decides whether to participate after receiving a nonbinding offer from the sender. Competition for play between senders leads to higher offers but has no effect on actual transfers, expected transfers, or receivers' willingness to play. The higher offers signal that sharing will be equitable without the expectation that they should be followed literally: Under competition "6 is the new 5." PMID- 29339525 TI - Pulsating dissolution of crystalline matter. AB - Fluid-solid reactions result in material flux from or to the solid surface. The prediction of the flux, its variations, and changes with time are of interest to a wide array of disciplines, ranging from the material and earth sciences to pharmaceutical sciences. Reaction rate maps that are derived from sequences of topography maps illustrate the spatial distribution of reaction rates across the crystal surface. Here, we present highly spatially resolved rate maps that reveal the existence of rhythmic pulses of the material flux from the crystal surface. This observation leads to a change in our understanding of the way crystalline matter dissolves. Rhythmic fluctuations of the reactive surface site density and potentially concomitant oscillations in the fluid saturation imply spatial and temporal variability in surface reaction rates. Knowledge of such variability could aid attempts to upscale microscopic rates and predict reactive transport through changing porous media. PMID- 29339526 TI - The diversity of gestational diabetes: a therapeutic challenge. AB - Metformin as the first drug of choice for glucose lowering in gestational diabetes (GDM) is still controversial, despite recent publications reporting similar outcomes in comparison to insulin, both for offspring and mothers. The use of metformin during pregnancy is increasing and several recent guidelines recommend metformin use in GDM pregnancies. Background, current metformin use and unresolved concerns are discussed in the context of the article from Gante and coworkers. PMID- 29339527 TI - Diminished androgen and estrogen receptors and aromatase levels in hypogonadal diabetic men: reversal with testosterone. AB - AIMS: One-third of males with type 2 diabetes (T2DM) have hypogonadism, characterized by low total and free testosterone concentrations. We hypothesized that this condition is associated with a compensatory increase in the expression of androgen receptors (AR) and that testosterone replacement reverses these changes. We also measured estrogen receptor and aromatase expression. MATERIALS AND METHODS: This is a randomized double-blind placebo-controlled trial. Thirty two hypogonadal and 32 eugonadal men with T2DM were recruited. Hypogonadal men were randomized to receive intramuscular testosterone or saline every 2 weeks for 22 weeks. We measured AR, ERalpha and aromatase expression in peripheral blood mononuclear cells (MNC), adipose tissue and skeletal muscle in hypogonadal and eugonadal males with T2DM at baseline and after 22 weeks of treatment in those with hypogonadism. RESULTS: The mRNA expression of AR, ERalpha (ESR1) and aromatase in adipose tissue from hypogonadal men was significantly lower as compared to eugonadal men, and it increased significantly to levels comparable to those in eugonadal patients with T2DM following testosterone treatment. AR mRNA expression was also significantly lower in MNC from hypogonadal patients compared to eugonadal T2DM patients. Testosterone administration in hypogonadal patients also restored AR mRNA and nuclear extract protein levels from MNC to that in eugonadal patients. In the skeletal muscle, AR mRNA and protein expression are lower in men with hypogonadism. Testosterone treatment restored AR expression levels to that comparable to levels in eugonadal men. CONCLUSIONS: We conclude that, contrary to our hypothesis, the expression of AR, ERalpha and aromatase is significantly diminished in hypogonadal men as compared to eugonadal men with type 2 diabetes. Following testosterone replacement, there is a reversal of these deficits. PMID- 29339529 TI - MANAGEMENT OF ENDOCRINE DISEASE: Atypical femoral fractures: risks and benefits of long-term treatment of osteoporosis with anti-resorptive therapy. AB - Modern osteoporosis treatment began in the mid-1990s with the approval of amino bisphosphonates, anti-resorptive agents that have been shown to decrease osteoporotic fracture risk by about half. In 2005, the first cases of atypical femoral fractures (AFF), occurring in the shaft of the femur, were reported. Since then, more cases have been found, leading to great concern among patients and a dramatic decrease in bisphosphonate prescribing. The pathogenesis and incidence of AFF are reviewed herein. Management and an approach to prevention or early detection of AFF are also provided. Denosumab, a more recently approved anti-resorptive medication has also been associated with AFF. Long-term management of osteoporosis and prevention of fracture are challenging in light of this serious but uncommon side effect, yet with an aging population osteoporotic fracture is destined to increase in frequency. PMID- 29339528 TI - Gonadal function in adult male patients with congenital adrenal hyperplasia. AB - CONTEXT: Current knowledge on gonadal function in congenital adrenal hyperplasia (CAH) is mostly limited to single-center/country studies enrolling small patient numbers. Overall data indicate that gonadal function can be compromised in men with CAH. OBJECTIVE: To determine gonadal function in men with CAH within the European 'dsd-LIFE' cohort. DESIGN: Cross-sectional clinical outcome study, including retrospective data from medical records. METHODS: Fourteen academic hospitals included 121 men with CAH aged 16-68 years. Main outcome measures were serum hormone concentrations, semen parameters and imaging data of the testes. RESULTS: At the time of assessment, 14/69 patients had a serum testosterone concentration below the reference range; 7 of those were hypogonadotropic, 6 normogonadotropic and 1 hypergonadotropic. In contrast, among the patients with normal serum testosterone (55/69), 4 were hypogonadotropic, 44 normogonadotropic and 7 hypergonadotropic. The association of decreased testosterone with reduced gonadotropin concentrations (odds ratio (OR) = 12.8 (2.9-57.3)) was weaker than the association between serum androstenedione/testosterone ratio >=1 and reduced gonadotropin concentrations (OR = 39.3 (2.1-732.4)). Evaluation of sperm quality revealed decreased sperm concentrations (15/39), motility (13/37) and abnormal morphology (4/28). Testicular adrenal rest tumor (TART)s were present in 39/80 patients, with a higher prevalence in patients with the most severe genotype (14/18) and in patients with increased current 17-hydroxyprogesterone 20/35) or androstenedione (12/18) serum concentrations. Forty-three children were fathered by 26/113 patients. CONCLUSIONS: Men with CAH have a high risk of developing hypothalamic-pituitary-gonadal disturbances and spermatogenic abnormalities. Regular assessment of endocrine gonadal function and imaging for TART development are recommended, in addition to measures for fertility protection. PMID- 29339530 TI - MANAGEMENT OF ENDOCRINE DISEASE: Personalized medicine in the treatment of acromegaly. AB - Acromegaly is associated with high morbidity and elevated mortality when not adequately treated. Surgery is the first-line treatment for most patients as it is the only one that can lead to immediate cure. In patients who are not cured by surgery, treatment is currently based on a trial-and-error approach. First generation somatostatin receptor ligands (fg-SRL) are initiated for most patients, although approximately 25% of patients present resistance to this drug class. Some biomarkers of treatment outcome are described in the literature, with the aim of categorizing patients into different groups to individualize their treatments using a personalized approach. In this review, we will discuss the current status of precision medicine for the treatment of acromegaly and future perspectives on the use of personalized medicine for this purpose. PMID- 29339531 TI - EMA calls for hydroxyethyl starch solutions to be taken off market. PMID- 29339532 TI - Football headers and dementia: five minutes with Willie Stewart. PMID- 29339533 TI - Learning-dependent chromatin remodeling highlights noncoding regulatory regions linked to autism. AB - Autism spectrum disorder (ASD) is a prevalent neurodevelopmental disorder that is associated with genetic risk factors. Most human disease-associated single nucleotide polymorphisms (SNPs) are not located in genes but rather are in regulatory regions that control gene expression. The function of regulatory regions is determined through epigenetic mechanisms. Parallels between the cellular basis of development and the formation of long-term memory have long been recognized, particularly the role of epigenetic mechanisms in both processes. We analyzed how learning alters chromatin accessibility in the mouse hippocampus using a new high-throughput sequencing bioinformatics strategy we call DEScan (differential enrichment scan). DEScan, which enabled the analysis of data from epigenomic experiments containing multiple replicates, revealed changes in chromatin accessibility at 2365 regulatory regions-most of which were promoters. Learning-regulated promoters were active during forebrain development in mice and were enriched in epigenetic modifications indicative of bivalent promoters. These promoters were disproportionally intronic, showed a complex relationship with gene expression and alternative splicing during memory consolidation and retrieval, and were enriched in the data set relative to known ASD risk genes. Genotyping in a clinical cohort within one of these promoters (SHANK3 promoter 6) revealed that the SNP rs6010065 was associated with ASD. Our data support the idea that learning recapitulates development at the epigenetic level and demonstrate that behaviorally induced epigenetic changes in mice can highlight regulatory regions relevant to brain disorders in patients. PMID- 29339535 TI - Functional changes of AMPA responses in human induced pluripotent stem cell derived neural progenitors in fragile X syndrome. AB - Altered neuronal network formation and function involving dysregulated excitatory and inhibitory circuits are associated with fragile X syndrome (FXS). We examined functional maturation of the excitatory transmission system in FXS by investigating the response of FXS patient-derived neural progenitor cells to the glutamate analog (AMPA). Neural progenitors derived from induced pluripotent stem cell (iPSC) lines generated from boys with FXS had augmented intracellular Ca2+ responses to AMPA and kainate that were mediated by Ca2+-permeable AMPA receptors (CP-AMPARs) lacking the GluA2 subunit. Together with the enhanced differentiation of glutamate-responsive cells, the proportion of CP-AMPAR and N-methyl-d aspartate (NMDA) receptor-coexpressing cells was increased in human FXS progenitors. Differentiation of cells lacking GluA2 was also increased and paralleled the increased inward rectification in neural progenitors derived from Fmr1-knockout mice (the FXS mouse model). Human FXS progenitors had increased the expression of the precursor and mature forms of miR-181a, a microRNA that represses translation of the transcript encoding GluA2. Blocking GluA2-lacking, CP-AMPARs reduced the neurite length of human iPSC-derived control progenitors and further reduced the shortened length of neurites in human FXS progenitors, supporting the contribution of CP-AMPARs to the regulation of progenitor differentiation. Furthermore, we observed reduced expression of Gria2 (the GluA2 encoding gene) in the frontal lobe of FXS mice, consistent with functional changes of AMPARs in FXS. Increased Ca2+ influx through CP-AMPARs may increase the vulnerability and affect the differentiation and migration of distinct cell populations, which may interfere with normal circuit formation in FXS. PMID- 29339534 TI - Inactivating mutations in Drosha mediate vascular abnormalities similar to hereditary hemorrhagic telangiectasia. AB - The transforming growth factor-beta (TGF-beta) and bone morphogenetic protein (BMP) family of cytokines critically regulates vascular morphogenesis and homeostasis. Impairment of TGF-beta or BMP signaling leads to heritable vascular disorders, including hereditary hemorrhagic telangiectasia (HHT). Drosha, a key enzyme for microRNA (miRNA) biogenesis, also regulates the TGF-beta and BMP pathway through interaction with Smads and their joint control of gene expression through miRNAs. We report that mice lacking Drosha in the vascular endothelium developed a vascular phenotype resembling HHT that included dilated and disorganized vasculature, arteriovenous fistulae, and hemorrhages. Exome sequencing of HHT patients who lacked known pathogenic mutations revealed an overrepresentation of rare nonsynonymous variants of DROSHA Two of these DROSHA variants (P100L and R279L) did not interact with Smads and were partially catalytically active. In zebrafish, expression of these mutants or morpholino directed knockdown of Drosha resulted in angiogenesis defects and abnormal vascular permeability. Together, our studies point to an essential role of Drosha in vascular development and the maintenance of vascular integrity, and reveal a previously unappreciated link between Drosha dysfunction and HHT. PMID- 29339536 TI - Length of Stay and Hospital Revisit After Bacterial Tracheostomy-Associated Respiratory Tract Infection Hospitalizations. AB - OBJECTIVES: To identify factors associated with longer length of stay (LOS) and higher 30-day hospital revisit rates for children hospitalized with bacterial tracheostomy-associated respiratory tract infections (bTARTIs). METHODS: This was a multicenter, retrospective cohort study using administrative data from the Pediatric Health Information System database between 2007 and 2014 of patients 30 days to 17 years old with a principal discharge diagnosis of bTARTI or a principal discharge diagnosis of bTARTI symptoms with a secondary diagnosis of bTARTI. Primary outcomes of LOS (in days) and 30-day all-cause revisit rates (inpatient, observation, or emergency department visit) were analyzed by using a 3-level hierarchical regression model (discharges within patients within hospital). RESULTS: We included 3715 unique patients and 7355 discharges. The median LOS was 4 days (interquartile range: 3-8 days), and the 30-day revisit rate was 30.5%. Compared with children 1 to 4 years old, children aged 30 days to 12 months had both longer LOS (adjusted length of stay [aLOS] = +0.9 days; 95% confidence interval [CI]: 0.6 to 1.3) and increased hospital revisit risk (adjusted odds ratio [aOR] = 1.5; 95% CI: 1.3 to 1.7). Other factors associated with longer LOS included public insurance (aLOS = +0.5 days; 95% CI: 0.2 to 0.8), 3 or more complex chronic conditions (CCCs), mechanical ventilation (acute or chronic), and empirical anti-Pseudomonas aeruginosa antibiotics (aLOS = +0.6 days; 95% CI: 0.3 to 0.9). Other factors associated with 30-day revisit included 4 or more CCCs (aOR = 1.3; 95% CI: 1.1 to 1.6) and chronic ventilator dependency (aOR = 1.1; 95% CI: 1.0 to 1.3). CONCLUSIONS: Ventilator-dependent patients <12 months old with at least 4 CCCs are at highest risk for both longer LOS and 30 day revisit after discharge for bTARTIs. They may benefit from bTARTI prevention strategies and intensive care coordination while hospitalized. PMID- 29339537 TI - STAT3/PIAS3 Levels Serve as "Early Signature" Genes in the Development of High Grade Serous Carcinoma from the Fallopian Tube. AB - The initial molecular events that lead to malignant transformation of the fimbria of the fallopian tube (FT) through high-grade serous ovarian carcinoma (HGSC) remain poorly understood. In this study, we report that increased expression of signal transducer and activator of transcription 3 (pSTAT3 Tyr705) and suppression or loss of protein inhibitor of activated STAT3 (PIAS3) in FT likely drive HGSC. We evaluated human tissues-benign normal FT, tubal-peritoneal junction (TPJ), p53 signature FT tissue, tubal intraepithelial lesion in transition (TILT), serous tubal intraepithelial carcinoma (STIC) without ovarian cancer, and HGSC for expression of STAT3/PIAS3 (compared with their known TP53 signature) and their target proliferation genes. We observed constitutive activation of STAT3 and low levels or loss of PIAS3 in the TPJ, p53 signature, TILT, and STIC through advanced stage IV (HGSC) tissues. Elevated expression of pSTAT3 Tyr705 and decreased levels of PIAS3 appeared as early as TPJ and the trend continued until very advanced stage HGSC (compared with high PIAS3 and low pSTAT3 expression in normal benign FT). Exogenous expression of STAT3 in FT cells mediated translocation of pSTAT3 and c-Myc into the nucleus. In vivo experiments demonstrated that overexpression of STAT3 in FT secretory epithelial cells promoted tumor progression and metastasis, mimicking the clinical disease observed in patients with HGSC. Thus, we conclude that the STAT3 pathway plays a role in the development and progression of HGSC from its earliest premalignant states.Significance: Concomitant gain of pSTAT3 Tyr705 and loss of PIAS3 appear critical for initiation and development of high-grade serous carcinoma. Cancer Res; 78(7); 1739-50. (c)2018 AACR. PMID- 29339538 TI - E6 Protein Expressed by High-Risk HPV Activates Super-Enhancers of the EGFR and c MET Oncogenes by Destabilizing the Histone Demethylase KDM5C. AB - The high-risk (HR) human papillomaviruses (HPV) are causative agents of anogenital tract dysplasia and cancers and a fraction of head and neck cancers. The HR HPV E6 oncoprotein possesses canonical oncogenic functions, such as p53 degradation and telomerase activation. It is also capable of stimulating expression of several oncogenes, but the molecular mechanism underlying these events is poorly understood. Here, we provide evidence that HPV16 E6 physically interacts with histone H3K4 demethylase KDM5C, resulting in its degradation in an E3 ligase E6AP- and proteasome-dependent manner. Moreover, we found that HPV16 positive cancer cell lines exhibited lower KDM5C protein levels than HPV-negative cancer cell lines. Restoration of KDM5C significantly suppressed the tumorigenicity of CaSki cells, an HPV16-positive cervical cancer cell line. Whole genome ChIP-seq and RNA-seq results revealed that CaSki cells contained super enhancers in the proto-oncogenes EGFR and c-MET Ectopic KDM5C dampened these super-enhancers and reduced the expression of proto-oncogenes. This effect was likely mediated by modulating H3K4me3/H3K4me1 dynamics and decreasing bidirectional enhancer RNA transcription. Depletion of KDM5C or HPV16 E6 expression activated these two super-enhancers. These results illuminate a pivotal relationship between the oncogenic E6 proteins expressed by HR HPV isotypes and epigenetic activation of super-enhancers in the genome that drive expression of key oncogenes like EGFR and c-METSignificance: This study suggests a novel explanation for why infections with certain HPV isotypes are associated with elevated cancer risk by identifying an epigenetic mechanism through which E6 proteins expressed by those isotypes can drive expression of key oncogenes. Cancer Res; 78(6); 1418-30. (c)2018 AACR. PMID- 29339539 TI - The Hippo Pathway Component TAZ Promotes Immune Evasion in Human Cancer through PD-L1. AB - The Hippo pathway component WW domain-containing transcription regulator 1 (TAZ) is a transcriptional coactivator and an oncogene in breast and lung cancer. Transcriptional targets of TAZ that modulate immune cell function in the tumor microenvironment are poorly understood. Here, we perform a comprehensive screen for immune-related genes regulated by TAZ and its paralog YAP using NanoString gene expression profiling. We identify the immune checkpoint molecule PD-L1 as a target of Hippo signaling. The upstream kinases of the Hippo pathway, mammalian STE20-like kinase 1 and 2 (MST1/2), and large tumor suppressor 1 and 2 (LATS1/2), suppress PD-L1 expression while TAZ and YAP enhance PD-L1 levels in breast and lung cancer cell lines. PD-L1 expression in cancer cell lines is determined by TAZ activity and TAZ/YAP/TEAD increase PD-L1 promoter activity. Critically, TAZ induced PD-L1 upregulation in human cancer cells is sufficient to inhibit T-cell function. The relationship between TAZ and PD-L1 is not conserved in multiple mouse cell lines, likely due to differences between the human and mouse PD-L1 promoters. To explore the extent of divergence in TAZ immune-related targets between human and mouse cells, we performed a second NanoString screen using mouse cell lines. We show that many targets of TAZ may be differentially regulated between these species. These findings highlight the role of Hippo signaling in modifying human/murine physiologic/pathologic immune responses and provide evidence implicating TAZ in human cancer immune evasion.Significance: Human-specific activation of PD-L1 by a novel Hippo signaling pathway in cancer immune evasion may have a significant impact on research in immunotherapy. Cancer Res; 78(6); 1457-70. (c)2018 AACR. PMID- 29339540 TI - Radioresistant Cervical Cancers Are Sensitive to Inhibition of Glycolysis and Redox Metabolism. AB - Highly glycolytic cervical cancers largely resist treatment by cisplatin and coadministered pelvic irradiation as the present standard of care. In this study, we investigated the effects of inhibiting glycolysis and thiol redox metabolism to evaluate them as alternate treatment strategies in these cancers. In a panel of multiple cervical cancer cell lines, we evaluated sensitivity to inhibition of glycolysis (2-deoxyglucose, 2-DG) with or without simultaneous inhibition of glutathione and thioredoxin metabolism (BSO/AUR). Intracellular levels of total and oxidized glutathione, thioredoxin reductase activity, and indirect measures of intracellular reactive oxygen species were compared before and after treatment. Highly radioresistant cells were the most sensitive to 2-DG, whereas intermediate radioresistant cells were sensitive to 2-DG plus BSO/AUR. In response to 2-DG/BSO/AUR treatment, we observed increased levels of intracellular oxidized glutathione, redox-sensitive dye oxidation, and decreased glucose utilization via multiple metabolic pathways including the tricarboxylic acid cycle. 2-DG/BSO/AUR treatment delayed the growth of tumors composed of intermediate radioresistant cells and effectively radiosensitized these tumors at clinically relevant radiation doses both in vitro and in vivo Overall, our results support inhibition of glycolysis and intracellular redox metabolism as an effective alternative drug strategy for the treatment of highly glycolytic and radioresistant cervical cancers.Significance: This study suggests a simple metabolic approach to strike at an apparent Achilles' heel in highly glycolytic, radioresistant forms of cervical cancers, possibly with broader applications in cancer therapy. Cancer Res; 78(6); 1392-403. (c)2018 AACR. PMID- 29339541 TI - PHD3 Controls Lung Cancer Metastasis and Resistance to EGFR Inhibitors through TGFalpha. AB - Lung cancer is the leading cause of cancer-related death worldwide, in large part due to its high propensity to metastasize and to develop therapy resistance. Adaptive responses to hypoxia and epithelial-mesenchymal transition (EMT) are linked to tumor metastasis and drug resistance, but little is known about how oxygen sensing and EMT intersect to control these hallmarks of cancer. Here, we show that the oxygen sensor PHD3 links hypoxic signaling and EMT regulation in the lung tumor microenvironment. PHD3 was repressed by signals that induce EMT and acted as a negative regulator of EMT, metastasis, and therapeutic resistance. PHD3 depletion in tumors, which can be caused by the EMT inducer TGFbeta or by promoter methylation, enhanced EMT and spontaneous metastasis via HIF-dependent upregulation of the EGFR ligand TGFalpha. In turn, TGFalpha stimulated EGFR, which potentiated SMAD signaling, reinforcing EMT and metastasis. In clinical specimens of lung cancer, reduced PHD3 expression was linked to poor prognosis and to therapeutic resistance against EGFR inhibitors such as erlotinib. Reexpression of PHD3 in lung cancer cells suppressed EMT and metastasis and restored sensitivity to erlotinib. Taken together, our results establish a key function for PHD3 in metastasis and drug resistance and suggest opportunities to improve patient treatment by interfering with the feedforward signaling mechanisms activated by PHD3 silencing.Significance: This study links the oxygen sensor PHD3 to metastasis and drug resistance in cancer, with implications for therapeutic improvement by targeting this system. Cancer Res; 78(7); 1805-19. (c)2018 AACR. PMID- 29339542 TI - AMPK-Akt Double-Negative Feedback Loop in Breast Cancer Cells Regulates Their Adaptation to Matrix Deprivation. AB - Cell detachment from the extracellular matrix triggers anoikis. Disseminated tumor cells must adapt to survive matrix deprivation, while still retaining the ability to attach at secondary sites and reinitiate cell division. In this study, we elucidate mechanisms that enable reversible matrix attachment by breast cancer cells. Matrix deprival triggered AMPK activity and concomitantly inhibited AKT activity by upregulating the Akt phosphatase PHLPP2. The resultant pAMPKhigh/pAktlow state was critical for cell survival in suspension, as PHLPP2 silencing also increased anoikis while impairing autophagy and metastasis. In contrast, matrix reattachment led to Akt-mediated AMPK inactivation via PP2C alpha-mediated restoration of the pAkthigh/pAMPKlow state. Clinical specimens of primary and metastatic breast cancer displayed an Akt-associated gene expression signature, whereas circulating breast tumor cells displayed an elevated AMPK dependent gene expression signature. Our work establishes a double-negative feedback loop between Akt and AMPK to control the switch between matrix-attached and matrix-detached states needed to coordinate cell growth and survival during metastasis.Significance: These findings reveal a molecular switch that regulates cancer cell survival during metastatic dissemination, with the potential to identify targets to prevent metastasis in breast cancer. Cancer Res; 78(6); 1497 510. (c)2018 AACR. PMID- 29339543 TI - Genes Predisposed to DNA Hypermethylation during Acquired Resistance to Chemotherapy Are Identified in Ovarian Tumors by Bivalent Chromatin Domains at Initial Diagnosis. AB - Bivalent chromatin domains containing both active H3K4me3 and repressive H3K27me3 histone marks define gene sets poised for expression or silencing in differentiating embryonic stem (ES) cells. In cancer cells, aberrantly poised genes may facilitate changes in transcriptional states after exposure to anticancer drugs. In this study, we used ChIP-seq to characterize genome-wide positioning of H3K4me3- and H3K27me3-associated chromatin in primary high-grade serous ovarian carcinomas and in normal ovarian surface and fallopian tube tissue. Gene sets with proximal bivalent marks defined in this manner were evaluated subsequently as signatures of systematic change in DNA methylation and gene expression, comparing pairs of tissue samples taken from patients at primary presentation and relapse following chemotherapy. We found that gene sets harboring bivalent chromatin domains at their promoters in tumor tissue, but not normal epithelia, overlapped with Polycomb-repressive complex target genes as well as transcriptionally silenced genes in normal ovarian and tubal stem cells. The bivalently marked genes we identified in tumors before chemotherapy displayed increased promoter CpG methylation and reduced gene expression at relapse after chemotherapy of ovarian cancer. Overall, our results support the hypothesis that preexisting histone modifications at genes in a poised chromatin state may lead to epigenetic silencing during acquired drug resistance.Significance: These results suggest epigenetic targets for intervention to prevent the emergence of cancer drug resistance. Cancer Res; 78(6); 1383-91. (c)2018 AACR. PMID- 29339544 TI - Role of Chromatin Damage and Chromatin Trapping of FACT in Mediating the Anticancer Cytotoxicity of DNA-Binding Small-Molecule Drugs. AB - Precisely how DNA-targeting chemotherapeutic drugs trigger cancer cell death remains unclear, as it is difficult to separate direct DNA damage from other effects in cells. Recent work on curaxins, a class of small-molecule drugs with broad anticancer activity, shows that they interfere with histone-DNA interactions and destabilize nucleosomes without causing detectable DNA damage. Chromatin damage caused by curaxins is sensed by the histone chaperone FACT, which binds unfolded nucleosomes becoming trapped in chromatin. In this study, we investigated whether classical DNA-targeting chemotherapeutic drugs also similarly disturbed chromatin to cause chromatin trapping of FACT (c-trapping). Drugs that directly bound DNA induced both chromatin damage and c-trapping. However, chromatin damage occurred irrespective of direct DNA damage and was dependent on how a drug bound DNA, specifically, in the way it bound chromatinized DNA in cells. FACT was sensitive to a plethora of nucleosome perturbations induced by DNA-binding small molecules, including displacement of the linker histone, eviction of core histones, and accumulation of negative supercoiling. Strikingly, we found that the cytotoxicity of DNA-binding small molecules correlated with their ability to cause chromatin damage, not DNA damage. Our results suggest implications for the development of chromatin damaging agents as selective anticancer drugs.Significance: These provocative results suggest that the anticancer efficacy of traditional DNA-targeting chemotherapeutic drugs may be based in large part on chromatin damage rather than direct DNA damage. Cancer Res; 78(6); 1431-43. (c)2018 AACR. PMID- 29339545 TI - Perioperative Implementation of Noninvasive Positive Airway Pressure Therapies. AB - Noninvasively applied positive airway pressure therapy (PAP) is available in 3 basic modes: continuous positive airway pressure (CPAP), bi-level positive airway pressure (BPAP), and adaptive servo-ventilation. These are in widespread use in home and hospital settings to treat a variety of disorders of ventilation or gas exchange, including obstructive sleep apnea, sleep-related hypoventilation, periodic breathing, acute and chronic hypercapnic respiratory failure, and acute respiratory failure. They are increasingly being used perioperatively to prevent or treat upper airway obstruction, hypoventilation, and periodic breathing, and they have been found to improve postoperative outcomes in the case of obstructive sleep apnea. An impediment to their use in this setting is a lack of familiarity with their application by hospital clinical staff. This review describes the modes of PAP therapy available, their indications, how therapy is initiated, how efficacy is assessed, common problems encountered with its use, and how these problems can be addressed. PMID- 29339546 TI - Correction: Interventions that improve maternity care for immigrant women in the UK: protocol for a narrative synthesis systematic review. PMID- 29339547 TI - Opinion: Measuring how countries adapt to societal aging. PMID- 29339549 TI - APOL1 Genotype and Renal Function of Black Living Donors. AB - Black living kidney donors are at higher risk of developing kidney disease than white donors. We examined the effect of the APOL1 high-risk genotype on postdonation renal function in black living kidney donors and evaluated whether this genotype alters the association between donation and donor outcome. We grouped 136 black living kidney donors as APOL1 high-risk (two risk alleles; n=19; 14%) or low-risk (one or zero risk alleles; n=117; 86%) genotype. Predonation characteristics were similar between groups, except for lower mean+/ SD baseline eGFR (CKD-EPI equation) in donors with the APOL1 high-risk genotype (98+/-17 versus 108+/-20 ml/min per 1.73 m2; P=0.04). At a median of 12 years after donation, donors with the APOL1 high-risk genotype had lower eGFR (57+/-18 versus 67+/-15 ml/min per 1.73 m2; P=0.02) and faster decline in eGFR after adjusting for predonation eGFR (1.19; 95% confidence interval, 0 to 2.3 versus 0.4; 95% confidence interval, 0.1 to 0.7 ml/min per 1.73 m2 per year, P=0.02). Two donors developed ESRD; both carried the APOL1 high-risk genotype. In a subgroup of 115 donors matched to 115 nondonors by APOL1 genotype, we did not find a difference between groups in the rate of eGFR decline (P=0.39) or any statistical interaction by APOL1 status (P=0.92). In conclusion, APOL1 high-risk genotype in black living kidney donors associated with greater decline in postdonation kidney function. Trajectory of renal function was similar between donors and nondonors. The association between APOL1 high-risk genotype and poor renal outcomes in kidney donors requires validation in a larger study. PMID- 29339550 TI - Relative Target Affinities of T-Cell-Dependent Bispecific Antibodies Determine Biodistribution in a Solid Tumor Mouse Model. AB - Anti-HER2/CD3, a T-cell-dependent bispecific antibody (TDB) construct, induces T cell-mediated cell death in cancer cells expressing HER2 by cross-linking tumor HER2 with CD3 on cytotoxic T cells, thereby creating a functional cytolytic synapse. TDB design is a very challenging process that requires consideration of multiple parameters. Although therapeutic antibody design strategy is commonly driven by striving for the highest attainable antigen-binding affinity, little is known about how the affinity of each TDB arm can affect the targeting ability of the other arm and the consequent distribution and efficacy. To our knowledge, no distribution studies have been published using preclinical models wherein the T cell-targeting arm of the TDB is actively bound to T cells. We used a combined approach involving radiochemistry, invasive biodistribution, and noninvasive single-photon emission tomographic (SPECT) imaging to measure TDB distribution and catabolism in transgenic mice with human CD3epsilon expression on T cells. Using CD3 affinity variants, we assessed the impact of CD3 affinity on short-term pharmacokinetics, tissue distribution, and cellular uptake. Our experimental approach determined the relative effects of (i) CD3 targeting to normal tissues, (ii) HER2 targeting to HER2-expressing tumors, and (iii) relative HER2/CD3 affinity, all as critical drivers for TDB distribution. We observed a strong correlation between CD3 affinity and distribution to T-cell-rich tissues, with higher CD3 affinity reducing systemic exposure and shifting TDB distribution away from tumor to T-cell-containing tissues. These observations have important implications for clinical translation of bispecific antibodies for cancer immunotherapy. Mol Cancer Ther; 17(4); 776-85. (c)2018 AACR. PMID- 29339551 TI - Inhibition of FLT3 and PIM Kinases by EC-70124 Exerts Potent Activity in Preclinical Models of Acute Myeloid Leukemia. AB - Internal tandem duplication (ITD) or tyrosine kinase domain mutations of FLT3 is the most frequent genetic alteration in acute myelogenous leukemia (AML) and are associated with poor disease outcome. Despite considerable efforts to develop single-target FLT3 drugs, so far, the most promising clinical response has been achieved using the multikinase inhibitor midostaurin. Here, we explore the activity of the indolocarbazole EC-70124, from the same chemical space as midostaurin, in preclinical models of AML, focusing on those bearing FLT3-ITD mutations. EC-70124 potently inhibits wild-type and mutant FLT3, and also other important kinases such as PIM kinases. EC-70124 inhibits proliferation of AML cell lines, inducing cell-cycle arrest and apoptosis. EC-70124 is orally bioavailable and displays higher metabolic stability and lower human protein plasma binding compared with midostaurin. Both in vitro and in vivo pharmacodynamic analyses demonstrate inhibition of FLT3-STAT5, Akt-mTOR-S6, and PIM-BAD pathways. Oral administration of EC-70124 in FLT3-ITD xenograft models demonstrates high efficacy, reaching complete tumor regression. Ex vivo, EC-70124 impaired cell viability in leukemic blasts, especially from FLT3-ITD patients. Our results demonstrate the ability of EC-70124 to reduce proliferation and induce cell death in AML cell lines, patient-derived leukemic blast and xenograft animal models, reaching best results in FLT3 mutants that carry other molecular pathways' alterations. Thus, its unique inhibition profile warrants EC-70124 as a promising agent for AML treatment based on its ability to interfere the complex oncogenic events activated in AML at several levels. Mol Cancer Ther; 17(3); 614 24. (c)2018 AACR. PMID- 29339552 TI - Mechanisms of redox metabolism and cancer cell survival during extracellular matrix detachment. AB - Nontransformed cells that become detached from the extracellular matrix (ECM) undergo dysregulation of redox homeostasis and cell death. In contrast, cancer cells often acquire the ability to mitigate programmed cell death pathways and recalibrate the redox balance to survive after ECM detachment, facilitating metastatic dissemination. Accordingly, recent studies of the mechanisms by which cancer cells overcome ECM detachment-induced metabolic alterations have focused on mechanisms in redox homeostasis. The insights into these mechanisms may inform the development of therapeutics that manipulate redox homeostasis to eliminate ECM-detached cancer cells. Here, we review how ECM-detached cancer cells balance redox metabolism for survival. PMID- 29339553 TI - Engineering abiotic stress response in plants for biomass production. AB - One of the major challenges in today's agriculture is to achieve enhanced plant growth and biomass even under adverse environmental conditions. Recent advancements in genetics and molecular biology have enabled the identification of a complex signaling network contributing toward plant growth and development on the one hand and abiotic stress response on the other hand. As an outcome of these studies, three major approaches have been identified as having the potential to improve biomass production in plants under abiotic stress conditions. These approaches deal with having changes in the following: (i) plant microbe interactions; (ii) cell wall biosynthesis; and (iii) phytohormone levels. At the same time, employing functional genomics and genetics-based approaches, a very large number of genes have been identified that play a key role in abiotic stress tolerance. Our Minireview is an attempt to unveil the cross-talk that has just started to emerge between the transcriptional circuitries for biomass production and abiotic stress response. This knowledge may serve as a valuable resource to eventually custom design the crop plants for higher biomass production, in a more sustainable manner, in marginal lands under variable climatic conditions. PMID- 29339554 TI - Synthetic biology strategies for improving microbial synthesis of "green" biopolymers. AB - Polysaccharide-based biopolymers have many material properties relevant to industrial and medical uses, including as drug delivery agents, wound-healing adhesives, and food additives and stabilizers. Traditionally, polysaccharides are obtained from natural sources. Microbial synthesis offers an attractive alternative for sustainable production of tailored biopolymers. Here, we review synthetic biology strategies for select "green" biopolymers: cellulose, alginate, chitin, chitosan, and hyaluronan. Microbial production pathways, opportunities for pathway yield improvements, and advances in microbial engineering of biopolymers in various hosts are discussed. Taken together, microbial engineering has expanded the repertoire of green biological chemistry by increasing the diversity of biobased materials. PMID- 29339555 TI - The redox requirements of proliferating mammalian cells. AB - Cell growth and division require nutrients, and proliferating cells use a variety of sources to acquire the amino acids, lipids, and nucleotides that support macromolecule synthesis. Lipids are more reduced than other nutrients, whereas nucleotides and amino acids are typically more oxidized. Cells must therefore generate reducing and oxidizing (redox) equivalents to convert consumed nutrients into biosynthetic precursors. To that end, redox cofactor metabolism plays a central role in meeting cellular redox requirements. In this Minireview, we highlight the biosynthetic pathways that involve redox reactions and discuss their integration with metabolism in proliferating mammalian cells. PMID- 29339556 TI - Evidence of a sequestered imine intermediate during reduction of nitrile to amine by the nitrile reductase QueF from Escherichia coli. AB - In the biosynthesis of the tRNA-inserted nucleoside queuosine, the nitrile reductase QueF catalyzes conversion of 7-cyano-7-deazaguanine (preQ0) to 7 aminomethyl-7-deazaguanine (preQ1), a biologically unique four-electron reduction of a nitrile to an amine. The QueF mechanism involves a covalent thioimide adduct between the enzyme and preQ0 that undergoes reduction to preQ1 in two NADPH dependent steps, presumably via an imine intermediate. Protecting a labile imine from interception by water is fundamental to QueF catalysis for proper enzyme function. In the QueF from Escherichia coli, the conserved Glu89 and Phe228 residues together with a mobile structural element composing the catalytic Cys190 form a substrate-binding pocket that secludes the bound preQ0 completely from solvent. We show here that residue substitutions (E89A, E89L, and F228A) targeted at opening up the binding pocket weakened preQ0 binding at the preadduct stage by up to +10 kJ/mol and profoundly affected catalysis. Unlike wildtype enzyme, the QueF variants, including L191A and I192A, were no longer selective for preQ1 formation. The E89A, E89L, and F228A variants performed primarily (>=90%) a two electron reduction of preQ0, releasing hydrolyzed imine (7-formyl-7-deazaguanine) as the product. The preQ0 reduction by L191A and I192A gave preQ1 and 7-formyl-7 deazaguanine at a 4:1 and 1:1 ratio, respectively. The proportion of 7-formyl-7 deazaguanine in total product increased with increasing substrate concentration, suggesting a role for preQ0 in a competitor-induced release of the imine intermediate. Collectively, these results provide direct evidence for the intermediacy of an imine in the QueF-catalyzed reaction. They reveal determinants of QueF structure required for imine sequestration and hence for a complete nitrile-to-amine conversion by this class of enzymes. PMID- 29339557 TI - Chronic dietary creatine enhances hippocampal-dependent spatial memory, bioenergetics, and levels of plasticity-related proteins associated with NF kappaB. AB - The brain has a high demand for energy, of which creatine (Cr) is an important regulator. Studies document neurocognitive benefits of oral Cr in mammals, yet little is known regarding their physiological basis. This study investigated the effects of Cr supplementation (3%, w/w) on hippocampal function in male C57BL/6 mice, including spatial learning and memory in the Morris water maze and oxygen consumption rates from isolated mitochondria in real time. Levels of transcription factors and related proteins (CREB, Egr1, and IkappaB to indicate NF-kappaB activity), proteins implicated in cognition (CaMKII, PSD-95, and Egr2), and mitochondrial proteins (electron transport chain Complex I, mitochondrial fission protein Drp1) were probed with Western blotting. Dietary Cr decreased escape latency/time to locate the platform (P < 0.05) and increased the time spent in the target quadrant (P < 0.01) in the Morris water maze. This was accompanied by increased coupled respiration (P < 0.05) in isolated hippocampal mitochondria. Protein levels of CaMKII, PSD-95, and Complex 1 were increased in Cr-fed mice, whereas IkappaB was decreased. These data demonstrate that dietary supplementation with Cr can improve learning, memory, and mitochondrial function and have important implications for the treatment of diseases affecting memory and energy homeostasis. PMID- 29339558 TI - Does sleep facilitate the consolidation of allocentric or egocentric representations of implicitly learned visual-motor sequence learning? AB - Sleep facilitates the consolidation (i.e., enhancement) of simple, explicit (i.e., conscious) motor sequence learning (MSL). MSL can be dissociated into egocentric (i.e., motor) or allocentric (i.e., spatial) frames of reference. The consolidation of the allocentric memory representation is sleep-dependent, whereas the egocentric consolidation process is independent of sleep or wake for explicit MSL. However, it remains unclear the extent to which sleep contributes to the consolidation of implicit (i.e., unconscious) MSL, nor is it known what aspects of the memory representation (egocentric, allocentric) are consolidated by sleep. Here, we investigated the extent to which sleep is involved in consolidating implicit MSL, specifically, whether the egocentric or the allocentric cognitive representations of a learned sequence are enhanced by sleep, and whether these changes support the development of explicit sequence knowledge across sleep but not wake. Our results indicate that egocentric and allocentric representations can be behaviorally dissociated for implicit MSL. Neither representation was preferentially enhanced across sleep nor were developments of explicit awareness observed. However, after a 1-wk interval performance enhancement was observed in the egocentric representation. Taken together, these results suggest that like explicit MSL, implicit MSL has dissociable allocentric and egocentric representations, but unlike explicit sequence learning, implicit egocentric and allocentric memory consolidation is independent of sleep, and the time-course of consolidation differs significantly. PMID- 29339559 TI - Evidence of structure and persistence in motivational attraction to serial Pavlovian cues. AB - Sign-tracking is a form of autoshaping where animals develop conditioned responding directed toward stimuli predictive of an outcome even though the outcome is not contingent on the animal's behavior. Sign-tracking behaviors are thought to arise out of the attribution of incentive salience (i.e., motivational value) to reward-predictive cues. It is not known how incentive salience would be attributed to serially occurring cues, despite cues often occurring in a sequence in the real world as reward approaches. The experiments presented here demonstrate that reward-proximal cue responding is not altered by the presence of a distal reward cue (Experiment 1), and similarly that reward-distal cue responding which animals favor, is not altered by the presence of a reward proximal cue (Experiment 2). Extinction of reward-proximal cues after training of the serial sequence leads to a generalized reduction in lever responding (Experiment 3). Together, we show that both Pavlovian serial lever cues acquire motivational value. These experiments also provide support to the notion that sign-tracking responses are insensitive to changes in outcome value, and that responding to serial cues creates a distinct context for outcome value. PMID- 29339560 TI - Molecular correlates of separate components of training that contribute to long term memory formation after learning that food is inedible in Aplysia. AB - Training Aplysia with inedible food for a period that is too brief to produce long-term memory becomes effective in producing memory when training is paired with a nitric oxide (NO) donor. Lip stimulation for the same period of time paired with an NO donor is ineffective. Using qPCR, we examined molecular correlates of brief training versus lip stimulation, of treatment with an NO donor versus saline, and of the combined stimuli producing long-term memory. Changes were examined in mRNA expression of Aplysia homologs of C/EBP, CREB1, CREB1alpha, CREB1beta, and CREB2, in both the buccal and cerebral ganglia controlling feeding. Both the brief training and the NO donor increased expression of C/EBP, CREB1, CREB1alpha, and CREB1beta, but not CREB2 in the buccal ganglia. For CREB1alpha, there was a significant interaction between the effects of the brief training and of the NO donor. In addition, the NO donor, but not brief training, increased expression of all of the genes in the cerebral ganglion. These findings show that the components of learning that alone do not produce memory produce molecular changes in different ganglia. Thus, long-term memory is likely to arise by both additive and interactive increases in gene expression. PMID- 29339561 TI - Prepared stimuli enhance aversive learning without weakening the impact of verbal instructions. AB - Fear-relevant stimuli such as snakes and spiders are thought to capture attention due to evolutionary significance. Classical conditioning experiments indicate that these stimuli accelerate learning, while instructed extinction experiments suggest they may be less responsive to instructions. We manipulated stimulus type during instructed aversive reversal learning and used quantitative modeling to simultaneously test both hypotheses. Skin conductance reversed immediately upon instruction in both groups. However, fear-relevant stimuli enhanced dynamic learning, as measured by higher learning rates in participants conditioned with images of snakes and spiders. Results are consistent with findings that dissociable neural pathways underlie feedback-driven and instructed aversive learning. PMID- 29339562 TI - Sleep-dependent reductions in reality-monitoring errors arise from more conservative decision criteria. AB - Reality-monitoring errors occur when internally generated thoughts are remembered as external occurrences. We hypothesized that sleep-dependent memory consolidation could reduce them by strengthening connections between items and their contexts during an afternoon nap. Participants viewed words and imagined their referents. Pictures of the referents also accompanied half of the words. After a 2-h break filled with sleep (n = 31) or wakefulness (n = 32), participants indicated if they previously viewed a picture of each word. Nap participants made fewer reality-monitoring errors than wake participants by adopting more stringent response criteria, suggesting that sleep reduces reality monitoring errors primarily by influencing post-retrieval decision processes. PMID- 29339563 TI - The Diagnosis of UTI: Colony Count Criteria Revisited. PMID- 29339564 TI - Accuracy of the Urinalysis for Urinary Tract Infections in Febrile Infants 60 Days and Younger. AB - OBJECTIVES: Reports of the test accuracy of the urinalysis for diagnosing urinary tract infections (UTIs) in young febrile infants have been variable. We evaluated the test characteristics of the urinalysis for diagnosing UTIs, with and without associated bacteremia, in young febrile infants. METHODS: We performed a planned secondary analysis of data from a prospective study of febrile infants <=60 days old at 26 emergency departments in the Pediatric Emergency Care Applied Research Network. We evaluated the test characteristics of the urinalysis for diagnosing UTIs, with and without associated bacteremia, by using 2 definitions of UTI: growth of >=50 000 or >=10 000 colony-forming units (CFUs) per mL of a uropathogen. We defined a positive urinalysis by the presence of any leukocyte esterase, nitrite, or pyuria (>5 white blood cells per high-power field). RESULTS: Of 4147 infants analyzed, 289 (7.0%) had UTIs with colony counts >=50 000 CFUs/mL, including 27 (9.3%) with bacteremia. For these UTIs, a positive urinalysis exhibited sensitivities of 0.94 (95% confidence interval [CI]: 0.91 0.97), regardless of bacteremia; 1.00 (95% CI: 0.87-1.00) with bacteremia; and 0.94 (95% CI: 0.90-0.96) without bacteremia. Specificity was 0.91 (95% CI: 0.90 0.91) in all groups. For UTIs with colony counts >=10 000 CFUs/mL, the sensitivity of the urinalysis was 0.87 (95% CI: 0.83-0.90), and specificity was 0.91 (95% CI: 0.90-0.92). CONCLUSIONS: The urinalysis is highly sensitive and specific for diagnosing UTIs, especially with >=50 000 CFUs/mL, in febrile infants <=60 days old, and particularly for UTIs with associated bacteremia. PMID- 29339566 TI - Graphene Dirac point tuned by ferroelectric polarization field. AB - Graphene has received numerous attention for future nanoelectronics and optoelectronics. The Dirac point is a key parameter of graphene that provides information about its carrier properties. There are lots of methods to tune the Dirac point of graphene, such as chemical doping, impurities, defects, and disorder. In this study, we report a different approach to tune the Dirac point of graphene using a ferroelectric polarization field. The Dirac point can be adjusted to near the ferroelectric coercive voltage regardless its original position. We have ensured this phenomenon by temperature-dependent experiments, and analyzed its mechanism with the theory of impurity correlation in graphene. Additionally, with the modulation of ferroelectric polymer, the current on/off ratio and mobility of graphene transistor both have been improved. This work provides an effective method to tune the Dirac point of graphene, which can be readily used to configure functional devices such as p-n junctions and inverters. PMID- 29339565 TI - A Home Visiting Parenting Program and Child Obesity: A Randomized Trial. AB - BACKGROUND: Young children living in historically marginalized families are at risk for becoming adolescents with obesity and subsequently adults with increased obesity-related morbidities. These risks are particularly acute for Hispanic children. We hypothesized that the prevention-focused, socioecological approach of the "Minding the Baby" (MTB) home visiting program might decrease the rate of childhood overweight and obesity early in life. METHODS: This study is a prospective longitudinal cohort study in which we include data collected during 2 phases of the MTB randomized controlled trial. First-time, young mothers who lived in medically underserved communities were invited to participate in the MTB program. Data were collected on demographics, maternal mental health, and anthropometrics of 158 children from birth to 2 years. RESULTS: More children in the intervention group had a healthy BMI at 2 years. The rate of obesity was significantly higher (P < .01) in the control group (19.7%) compared with the intervention group (3.3%) at this age. Among Hispanic families, children in the MTB intervention were less likely to have overweight or obesity (odds ratio = 0.32; 95% confidence interval: 0.13-0.78). CONCLUSIONS: Using the MTB program, we significantly lowered the rate of obesity among 2-year-old children living in low socioeconomic-status communities. In addition, children of Hispanic mothers were less likely to have overweight or obesity at 2 years. Given the high and disproportionate national prevalence of Hispanic young children with overweight and obesity and the increased costs of obesity-related morbidities, these findings have important clinical, research, and policy implications. PMID- 29339567 TI - Erythrocyte membrane-coated gold nanocages for targeted photothermal and chemical cancer therapy. AB - Recently, red blood cell (RBC) membrane-coated nanoparticles have attracted much attention because of their excellent immune escapability; meanwhile, gold nanocages (AuNs) have been extensively used for cancer therapy due to their photothermal effect and drug delivery capability. The combination of the RBC membrane coating and AuNs may provide an effective approach for targeted cancer therapy. However, few reports have shown the utilization of combining these two technologies. Here, we design erythrocyte membrane-coated gold nanocages for targeted photothermal and chemical cancer therapy. First, anti-EpCam antibodies were used to modify the RBC membranes to target 4T1 cancer cells. Second, the antitumor drug paclitaxel (PTX) was encapsulated into AuNs. Then, the AuNs were coated with the modified RBC membranes. These new nanoparticles were termed EpCam RPAuNs. We characterized the capability of the EpCam-RPAuNs for selective tumor targeting via exposure to near-infrared irradiation. The experimental results demonstrate that EpCam-RPAuNs can effectively generate hyperthermia and precisely deliver the antitumor drug PTX to targeted cells. We also validated the biocompatibility of the EpCam-RAuNs in vitro. By combining the molecularly modified targeting RBC membrane and AuNs, our approach provides a new way to design biomimetic nanoparticles to enhance the surface functionality of nanoparticles. We believe that EpCam-RPAuNs can be potentially applied for cancer diagnoses and therapies. PMID- 29339568 TI - Bone surface enhancement in ultrasound images using a new Doppler-based acquisition/processing method. AB - Ultrasound (US) imaging has long been considered as a potential aid in orthopedic surgeries. US technologies are safe, portable and do not use radiations. This would make them a desirable tool for real-time assessment of fractures and to monitor fracture healing. However, image quality of US imaging methods in bone applications is limited by speckle, attenuation, shadow, multiple reflections and other imaging artifacts. While bone surfaces typically appear in US images as somewhat 'brighter' than soft tissue, they are often not easily distinguishable from the surrounding tissue. Therefore, US imaging methods aimed at segmenting bone surfaces need enhancement in image contrast prior to segmentation to improve the quality of the detected bone surface. In this paper, we present a novel acquisition/processing technique for bone surface enhancement in US images. Inspired by elastography and Doppler imaging methods, this technique takes advantage of the difference between the mechanical and acoustic properties of bones and those of soft tissues to make the bone surface more easily distinguishable in US images. The objective of this technique is to facilitate US based bone segmentation methods and improve the accuracy of their outcomes. The newly proposed technique is tested both in in vitro and in vivo experiments. The results of these preliminary experiments suggest that the use of the proposed technique has the potential to significantly enhance the detectability of bone surfaces in noisy ultrasound images. PMID- 29339569 TI - Experimental determination of configurational entropy in a two-dimensional liquid under random pinning. AB - A quasi two-dimensional colloidal suspension is studied under the influence of immobilisation (pinning) of a random fraction of its particles. We introduce a novel experimental method to perform random pinning and, with the support of numerical simulation, we find that increasing the pinning concentration smoothly arrests the system, with a cross-over from a regime of high mobility and high entropy to a regime of low mobility and low entropy. At the local level, we study fluctuations in area fraction and concentration of pins and map them to entropic structural signatures and local mobility, obtaining a measure for the local entropic fluctuations of the experimental system. PMID- 29339570 TI - Comparison of Monte Carlo and analytical dose computations for intensity modulated proton therapy. AB - To evaluate the effect of approximations in clinical analytical calculations performed by a treatment planning system (TPS) on dosimetric indices in intensity modulated proton therapy. TPS calculated dose distributions were compared with dose distributions as estimated by Monte Carlo (MC) simulations, calculated with the fast dose calculator (FDC) a system previously benchmarked to full MC. This study analyzed a total of 525 patients for four treatment sites (brain, head-and neck, thorax and prostate). Dosimetric indices (D02, D05, D20, D50, D95, D98, EUD and Mean Dose) and a gamma-index analysis were utilized to evaluate the differences. The gamma-index passing rates for a 3%/3 mm criterion for voxels with a dose larger than 10% of the maximum dose had a median larger than 98% for all sites. The median difference for all dosimetric indices for target volumes was less than 2% for all cases. However, differences for target volumes as large as 10% were found for 2% of the thoracic patients. For organs at risk (OARs), the median absolute dose difference was smaller than 2 Gy for all indices and cohorts. However, absolute dose differences as large as 10 Gy were found for some small volume organs in brain and head-and-neck patients. This analysis concludes that for a fraction of the patients studied, TPS may overestimate the dose in the target by as much as 10%, while for some OARs the dose could be underestimated by as much as 10 Gy. Monte Carlo dose calculations may be needed to ensure more accurate dose computations to improve target coverage and sparing of OARs in proton therapy. PMID- 29339571 TI - Infrared photoconductivity and photovoltaic response from nanoscale domains of PbS alloyed with thorium and oxygen. AB - Thin films of lead sulfide alloyed with thorium and oxygen were deposited on GaAs substrates and processed to produce a photo-diode structure. Structural, optical and electrical characterizations indicate the presence of small nanoscale domains (NDs) that are characterized by dense packaging, high quality interfaces and a blue-shift of the energy bandgap toward the short wavelength infrared range of the spectrum. Photocurrent spectroscopy revealed a considerable photoconductivity that is correlated with excitation of carriers in the NDs of lead sulfide alloyed with thorium and oxygen. Furthermore, the appearance of a photovoltaic effect under near infrared illumination indicates a quasi-type II band alignment at the interface of the GaAs and the film of NDs. PMID- 29339572 TI - Three-dimensional cross-linking composite of graphene, carbon nanotube and Si nanoparticles for lithium ion batteries anode. AB - Various graphene-based Si nanocomposites have been reported to improve the performance of active materials in Li ion battery. However, these candidates still yield severe capacity fading due to the electrical disconnection and fracture caused by huge volume changes with extended cycles.Therefore, we design a novel three-dimensional cross-linking structure of graphene and single-wall carbon nanotube to encapsulate Si nanoparticles. The synthesized three-dimensional structure is ascribed to the excellent self assembly of carbon nanotube with graphene oxide and a thermal treatment process at 900 oC. This special structure provides sufficient void spaces for volume expansion of Si nanoparticles and channels for the diffusion of ions and electrons, and the cross-linking of graphene and single wall carbon nanotube also strengthens the stability of structure. As a result, the volume expansion of Si nanoparticles is restrained. The specific capacity remains 1450 mAh g-1 after 100 cycles at 200 mA g-1. This well-defined three dimensional structure facilitates superior capacity and cycling stability in comparison with bare Si and mechanically mixed composite electrode of graphene, single-wall carbon nanotube and silicon nanoparticles. PMID- 29339573 TI - 18F-choline PET/CT for parathyroid scintigraphy: significantly lower radiation exposure of patients in comparison to conventional nuclear medicine imaging approaches. AB - BACKGROUND: Parathyroid subtraction scintigraphy (PSS) is the most commonly used imaging method for localisation of hyperfunctioning parathyroid glands (HPGs) in primary hyperparathyroidism (PHP), a common endocrine disorder. Hybrid (SPECT/CT) imaging with 99mTc-sestaMIBI (MIBI) at an early and delayed phase (dual-phase imaging) may be the most accurate conventional imaging approach, but includes additional radiation exposure due to added CT imaging. Recently, 18F-choline (FCH) PET/CT was introduced for HPG imaging, which can also be performed using the dual-phase approach. To date, no studies have compared organ doses and the effective dose (ED) from conventional subtraction scintigraphy, dual-phase MIBI SPECT/CT, and FCH PET/CT in the localisation of HPGs. AIM: In addition to the comparison of the diagnostic performance of FCH PET/CT and conventional scintigraphic imaging methods, the aim of the study was to measure the organ doses and the ED for conventional subtraction parathyroid imaging protocols, using dual-phase MIBI SPECT/CT as a potential conventional imaging method of choice and FCH dual-phase PET/CT as a potential future imaging method of choice for the localisation of HPGs. Materials, methods. Thirty-six patients referred for parathyroid imaging with a clinical indication of PHP underwent preoperative PSS and dual-phase SPECT/CT imaging with the addition of FCH PET/CT. The diagnostic performance of the imaging modalities was assessed by using histology results as a gold standard. Radiation exposure was calculated for the administered activities of radiopharmaceuticals using ICRP80 weighting factors and for CT exposure at hybrid imaging using dose-length products and the ImPACT CT Patient Dosimetry Calculator. RESULTS: The diagnostic performance of FCH PET/CT was significantly better than that of conventional imaging modalities (sensitivity of 97% vs 64% and 46% for MIBI SPECT/CT and PSS, respectively, with comparable specificity of over 95% for all modalities). The highest radiation exposure was caused by conventional PSS (7.4 mSv), followed by dual-phase MIBI SPECT/CT (6.8 mSv). The radiation exposure was the lowest for dual-phase FCH PET/CT imaging (2.8 mSv). The added CT imaging for both hybrid approaches did not cause significant additional radiation exposure (1.4 mSv for MIBI SPECT/CT, additional 26.4% to overall exposure; 0.8 mSv for FCH PET/CT, additional 42.4% to overall exposure). CONCLUSION: In comparison to conventional scintigraphic imaging of HPGs, emerging hybrid (SPECT/CT, PET/CT) imaging techniques combine superior diagnostic performance with lower radiation exposure to patients. PMID- 29339574 TI - Phase diagram of carbon and the factors limiting the quantity and size of natural diamonds. AB - Phase diagrams of carbon, and those focusing on the graphite-to-diamond transitional conditions in particular, are of great interest for fundamental and applied research. The present study introduces a number of experiments carried out to convert graphite under high-pressure conditions, showing a formation of stable phase of fullerene-type onions cross-linked by sp3-bonds in the 55-115 GPa pressure range instead of diamonds formation (even at temperature 2000-3000 K) and the already formed diamonds turn into carbon onions. Our results refute the widespread idea that diamonds can form at any pressure from 2.2 to 1000 GPa. The phase diagram built within this study allows us not only to explain the existing numerous experimental data on the formation of diamond from graphite, but also to make assumptions about the conditions of its growth in Earth's crust. PMID- 29339575 TI - Dynamic PET image reconstruction integrating temporal regularization associated with respiratory motion correction for applications in oncology. AB - Respiratory motion reduces both the qualitative and quantitative accuracy of PET images in oncology. This impact is more significant for quantitative applications based on kinetic modeling, where dynamic acquisitions are associated with limited statistics due to the necessity of enhanced temporal resolution. The aim of this study is to address these drawbacks, by combining a respiratory motion correction approach with temporal regularization in a unique reconstruction algorithm for dynamic PET imaging. Elastic transformation parameters for the motion correction are estimated from the non-attenuation-corrected PET images. The derived displacement matrices are subsequently used in a list-mode based OSEM reconstruction algorithm integrating a temporal regularization between the 3D dynamic PET frames, based on temporal basis functions. These functions are simultaneously estimated at each iteration, along with their relative coefficients for each image voxel. Quantitative evaluation has been performed using dynamic FDG PET/CT acquisitions of lung cancer patients acquired on a GE DRX system. The performance of the proposed method is compared with that of a standard multi-frame OSEM reconstruction algorithm. The proposed method achieved substantial improvements in terms of noise reduction while accounting for loss of contrast due to respiratory motion. Results on simulated data showed that the proposed 4D algorithms led to bias reduction values up to 40% in both tumor and blood regions for similar standard deviation levels, in comparison with a standard 3D reconstruction. Patlak parameter estimations on reconstructed images with the proposed reconstruction methods resulted in 30% and 40% bias reduction in the tumor and lung region respectively for the Patlak slope, and a 30% bias reduction for the intercept in the tumor region (a similar Patlak intercept was achieved in the lung area). Incorporation of the respiratory motion correction using an elastic model along with a temporal regularization in the reconstruction process of the PET dynamic series led to substantial quantitative improvements and motion artifact reduction. Future work will include the integration of a linear FDG kinetic model, in order to directly reconstruct parametric images. PMID- 29339576 TI - A thermodynamics model for morphology prediction of aluminum nano crystals fabricated by the inert gas condensation method. AB - The purpose of this study is to provide scientific guidance for the morphological control of nanoparticle synthesis using the gas phase method. A universal thermodynamics model is developed to predict the morphology of nanoparticles fabricated using the inert gas condensation method. By using this model, the morphologies of aluminum nanocrystals are predicted under various preparation conditions. There are two types of energy that jointly determine the formation of nanoparticle morphology-Gibbs free energy for nanoparticles and energy variation during the process. The results show that energy variation dominates morphology formation when the cooling rate is less than 2 * 1011 K s-1 in the aluminum nanocrystal production process. At the beginning of the nanoparticle growth, the most stable morphology is predicted to be spherical, but the energetically preferred morphology becomes cubic as the particle grows. The turning point in the particle size at which spherical morphology is no longer the most stable morphology is exhibited as a function of pressure in a condensation chamber for different cooling rates. In this paper, we focus on the need for morphology prediction based on preparation conditions. It is concluded that nanoparticles with various morphologies could be obtained by adjusting the cooling rate and pressure in the condensation chamber. PMID- 29339577 TI - A wearable pressure sensor based on ultra-violet/ozone microstructured carbon nanotube/polydimethylsiloxane arrays for electronic skins. AB - Pressure sensors with high performance (e.g., a broad pressure sensing range, high sensitivities, rapid response/relaxation speeds, temperature-stable sensing), as well as a cost-effective and highly efficient fabrication method are highly desired for electronic skins. In this research, a high-performance pressure sensor based on microstructured carbon nanotube/polydimethylsiloxane arrays was fabricated using an ultra-violet/ozone (UV/O3) microengineering technique. The UV/O3 microengineering technique is controllable, cost-effective, and highly efficient since it is conducted at room temperature in an ambient environment. The pressure sensor offers a broad pressure sensing range (7 Pa-50 kPa), a sensitivity of ~ -0.101 +/- 0.005 kPa-1 (<1 kPa), a fast response/relaxation speed of ~10 ms, a small dependence on temperature variation, and a good cycling stability (>5000 cycles), which is attributed to the UV/O3 engineered microstructures that amplify and transfer external applied forces and rapidly store/release the energy during the PDMS deformation. The sensors developed show the capability to detect external forces and monitor human health conditions, promising for the potential applications in electronic skin. PMID- 29339578 TI - Functional metasurfaces based on metallic and dielectric subwavelength slits and stripes array. AB - Starting with the early works of extraordinary optical transmission and extraordinary Young's interference, researchers have been fascinated by the unusual optical properties displayed by metallic holes/slits and subsequently found similar abnormities in dielectric counterparts. Benefiting from the shrinking wavelength of surface plasmon polaritons excited in metallic slits and high refractive index of dielectric stripes, one can realize local phase modulation and approach desired dispersion by engineering the geometries of a slits and stripes array. In this review, we review recent developments in functional metasurfaces composed of various metallic and dielectric subwavelength slits and stripes arrays, with special emphasis on achromatic, ultra-broadband, quasi-continuous, multifunctional and reconfigurable metasurfaces. Particular attention is paid to provide insight into the design strategies for these devices. Finally, we give an outlook of the development in this fascinating area. PMID- 29339579 TI - Conclusions and recommendations from the 17th Workshop of the European ALARA Network 'ALARA in emergency exposure situations'. AB - The European ALARA Network regularly organises workshops on topical issues in radiation protection. In light of the Fukushima accident, the most recent workshop questioned the application of the ALARA principle in emergency exposure situations. This memorandum presents the conclusions and recommendations of this workshop. One of the outcomes is that the process of optimisation in emergency exposure situations should be flexible enough to be able to modify or refine decisions over the course of an accident. In the urgent phase, decisions must be made in a very time-constrained environment, based on scarce, uncertain and sometimes unreliable information. In this phase, optimisation and protection strategies are therefore developed and applied on the basis of conservative assumptions or 'reasonably foreseeable worst-case scenario' which could lead to an overestimation of the consequences. In the intermediate phase, knowledge of the situation improves, and more time is available to make the decision. This is reflected by adopting a less conservative approach, and transitioning to a more appropriate optimisation adapted as effectively as possible to the various exposure situations. When the situation is eventually stabilized (transition phase), there is time to shape the measures taken previously to reflect local conditions in the affected territories. In every phase, consideration should be given to the stakeholders, so that their needs and requirements can be incorporated as effectively as possible. PMID- 29339580 TI - Advantages of soft subdural implants for the delivery of electrochemical neuromodulation therapies to the spinal cord. AB - OBJECTIVE: We recently developed soft neural interfaces enabling the delivery of electrical and chemical stimulation to the spinal cord. These stimulations restored locomotion in animal models of paralysis. Soft interfaces can be placed either below or above the dura mater. Theoretically, the subdural location combines many advantages, including increased selectivity of electrical stimulation, lower stimulation thresholds, and targeted chemical stimulation through local drug delivery. However, these advantages have not been documented, nor have their functional impact been studied in silico or in a relevant animal model of neurological disorders using a multimodal neural interface. APPROACH: We characterized the recruitment properties of subdural interfaces using a realistic computational model of the rat spinal cord that included explicit representation of the spinal roots. We then validated and complemented computer simulations with electrophysiological experiments in rats. We additionally performed behavioral experiments in rats that received a lateral spinal cord hemisection and were implanted with a soft interface. MAIN RESULTS: In silico and in vivo experiments showed that the subdural location decreased stimulation thresholds compared to the epidural location while retaining high specificity. This feature reduces power consumption and risks of long-term damage in the tissues, thus increasing the clinical safety profile of this approach. The hemisection induced a transient paralysis of the leg ipsilateral to the injury. During this period, the delivery of electrical stimulation restricted to the injured side combined with local chemical modulation enabled coordinated locomotor movements of the paralyzed leg without affecting the non-impaired leg in all tested rats. Electrode properties remained stable over time, while anatomical examinations revealed excellent bio integration properties. SIGNIFICANCE: Soft neural interfaces inserted subdurally provide the opportunity to deliver electrical and chemical neuromodulation therapies using a single, bio-compatible and mechanically compliant device that effectively alleviates locomotor deficits after spinal cord injury. PMID- 29339581 TI - Strain-induced bi-thermoelectricity in tapered carbon nanotubes. AB - We show that carbon-based nanostructured materials are a novel testbed for controlling thermoelectricity and have the potential to underpin the development of new cost-effective environmentally-friendly thermoelectric materials. In single-molecule junctions, it is known that transport resonances associated with the discrete molecular levels play a key role in the thermoelectric performance, but such resonances have not been exploited in carbon nanotubes (CNTs). Here we study junctions formed from tapered CNTs and demonstrate that such structures possess transport resonances near the Fermi level, whose energetic location can be varied by applying strain, resulting in an ability to tune the sign of their Seebeck coefficient. These results reveal that tapered CNTs form a new class of bi-thermoelectric materials, exhibiting both positive and negative thermopower. This ability to change the sign of the Seebeck coefficient allows the thermovoltage in carbon-based thermoelectric devices to be boosted by placing CNTs with alternating-sign Seebeck coefficients in tandem. PMID- 29339582 TI - Oxidation of copper nanowire based transparent electrodes in ambient conditions and their stabilization by encapsulation: application to transparent film heaters. AB - Whereas the integration of silver nanowires in functional devices has reached a fair level of maturity, the integration of copper nanowires still remains difficult, mainly due to the intrinsic instability of copper nanowires in ambient conditions. In this paper, copper nanowire based transparent electrodes with good performances (33 Omega sq-1 associated with 88% transparency) were obtained, and their degradation in different conditions was monitored, in particular by electrical measurements, transmission electron microscopy, x-ray photoelectron spectrometry and Auger electron spectroscopy. Several routes to stabilize the random networks of copper nanowires were evaluated. Encapsulation through laminated barrier film with optical clear adhesive and atmospheric pressure spatial atomic layer deposition were found to be efficient and were used for the fabrication of transparent film heaters. PMID- 29339583 TI - Echocolor Doppler morpho-functional study of the jugulo-subclavian confluence in chronic cerebro-spinal venous insufficiency and multiple sclerosis patients. AB - OBJECTIVES: The aim of this work is to measure the mean diameter of the confluence jugulo- subclavian, the impact of different types of jugular confluences and the correlation between the types of confluences and the Valsalva maneuver (jugular reflux) in subjects with Chronic Cerebro-Spinal Venous Insufficiency (CCSVI) and Multiple Sclerosis. METHOD: We investigated by Echo Color-Doppler (ECD) 103 subjects (67 F 36M) of mean age 45 +/- 12 years (a minimum of 22 to a maximum of 79 years, with a median of 44 and a modal value 42 years), mean EDSS of 4.7 and average disease duration of 12 years. RESULTS: The 103 right jugular veins investigated had an average diameter of 8.4 +/- 2.4 mm (minimum 4.0, maximum 14.9 mm; median 7.9; modal value 7.6 mm). Three form types were found: 56 cylindrical, 29 conical and 18 funnel. Valsalva maneuver was positive in 30 patients. The 103 left jugular investigated had an average diameter of 8.9 +/- 2.4 mm (minimum 2.8, maximum 14.4 mm; median of 8.8; modal value 8.7 mm). The form types were found: 42 cylindrical, 45 conical and 16 funnel. Valsalva maneuver was positive in 30 patients. CONCLUSIONS: The mean diameter of the jugular veins was 8.7 mm. Internal jugular veins with cylindrical morphology have a diameter smaller than other forms; this difference is statistically significant. The different morphology of the jugular vein confluence does not increase the possibility of a reflux because the positive Valsalva maneuvers are not statistically significant when compared to the various types. KEY WORDS: CCSVI, EchoColorDoppler Map, Jugulo-Subclavian Confluence Diameter. PMID- 29339584 TI - Delayed diagnosis and treatment of high grade blunt pancreatic trauma. Case report and review of literature. AB - INTRODUCTION: Despite technological advancement, high grade pancreatic injuries following blunt abdominal trauma continues to remain a disease that is associated with high morbidity and mortality rates, particularly in cases of delayed diagnosis. The aim of this paper was the presentation of delayed diagnosis and treatment peculiarities of high grade pancreatic trauma and a review of literature. CASE REPORT: A 55-years old man, involved in motor vehicle crashes, was referred to our level I trauma center. Hemodynamically stable. Abdominal physical exam, laboratory and focused abdominal sonography for trauma were normal. First total body multidetector CT scan, performed only after 24 hours, showed almost complete left pneumothorax, left third to fifth rib fractures and subcutaneous emphysema. Left chest tube was applied. On the eighth post-traumatic day, the general condition of the patient started to deteriorate. The patient showed abdominal pain, fever, nausea, vomiting, and bilateral flank ecchymosis. Only the third CT scan performed, on twelfth day, after the peritoneal signs, changes in blood and biochemical parameters appear, we revealed linear laceration and hypo-attenuation area of the neck and a part of distal body pancreas. In laparotomy fat necrosis, giant retroperitoneal abscess, necrosis of the neck and distal body of the pancreas, was found. Distal pancreatectomy with splenectomy was performed. Postoperative course with extensive wound infection and necrotic leakage from peripancreatic drain was complicated. The patient was discharged two months after his operation without any events. CONCLUSION: On time diagnosis of pancreatic trauma, especially in polytrauma patients, continues to remain a challenge for trauma surgeons. Main pancreatic duct injury is an important prognostic factor and the major one determining therapeutic approaches. Adequate surgical approaches decrease morbidity and mortality in pancreatic trauma. KEY WORDS: Delayed diagnosis, Distal pancreatectomy, Pancreatic blunt trauma. PMID- 29339585 TI - Can ultrasonic surgical devices be used to close the appendicular stump? AB - : Laparoscopic appendectomy is increasingly being performed because of its quick recovery time, low instance of wound infection, and early return of patients to home and work. Operating time should be short yet safe. Therefore, in this study, we compared the effects of various sealing systems on the length of surgery and examined whether these systems could be used to separate the appendix from its stump successfully. This prospective and randomized ex vivo study was conducted on 20 consecutive patients diagnosed with acute appendicitis. All patients underwent classical open appendectomy. The patients were classified into two groups according to the type of sealing system used. The LigaSure(r) system was used for coagulation in Group L and the Harmonic(r) system in Group H. After coagulation, a pressure system was used to evaluate the closure of the appendix. Results showed that the use of ultrasonic instruments alone to close the appendiceal stump caused an incomplete closure. KEY WORDS: Appendicular stump, Laparoscopic appendectomy. PMID- 29339586 TI - Validation of COLA score for predicting wound infection in patients undergoing surgery for rectal cancer. AB - AIM: The purpose of our study was to estimate the incidence of SSI (Surgical site infection) and the effect of COLA (contamination, obesity, laparotomy and ASA grade) score on SSI in patients undergoing rectal surgical procedures for rectal cancer. MATERIAL OF STUDY: A total of 92 patients who underwent operation for rectum cancer were enrolled in this study. Wound surveillance was performed in all patients by a staff surgeon identified infected wounds during the hospital stay, and collected information for up to 30 days after operation. RESULTS: The overall rate of incisional SSI and organ/space SSI was 22.8% and 7.6% respectively. Surgical site infection rates were 14.2%, 20.58%, 40.7%, 57.1% for COLA 1,2,3 and 4 scores respectively. The area under the receiver/ operator characteristic curve for the score was 0,660. CONCLUSION: COLA scoring systems predict, with reasonable accuracy, the risk of SSI in rectal cancer patients undergoing elective rectal surgery. KEY WORDS: COLA score Rectal surgery, Surgical site infection, Risk prediction, Wound infection. PMID- 29339587 TI - Microscopically positive (R1) resections do not affect survival in pancreatic head cancer. AB - BACKGROUND: Obtaining negative microscopic resection margins (R0) in cephalic duodenopancreatectomy (CDP) is the gold standard. Resection line involvement at microscopic histopathological examination (R1) could change prognostic unfavorable. Regarding R1 resections in CDP (data from the literature show rates between 20-80%), we considered it necessary to perform a study in Regional Institute of Gastroenterology and Hepatology "Prof. Dr. O. Fodor'' Cluj-Napoca. METHODS: Here we present the results of a retrospective study carried out between January 2012 - December 2013 in our Institute. This study includes 63 patients with pancreatic head resections for pancreatic cancer. The circumferential soft tissue margin, the pancreatic transection margin, the bile duct and duodenum/stomach margins were analyzed. We investigated the incidence of R1 and its impact on the survival rates after oncologic pancreatic resections using a nonstandardized pathologic routine protocol. R1 status was defined as the distance of the tumor from the resection margin of <= 1 mm. RESULTS: Pancreatic ductal adenocarcinoma (PDAC) was diagnosed in 93.65 %. The R1 rate was 36.5 % (23 cases). The circumferential margins were most commonly involved as R1 (91,3%). No statistically significant differences were found between patients with R1 to those with R0 (p >= 0.1) regarding 3-year survival. CONCLUSIONS: Survival for pancreatic head cancer at 3 years is not influenced by the margins of resection (R1/R0). Microscopic resection margin involvement is not an independent marker of survival. KEY WORDS: Circumferential margins, Nonstandardized pathologic protocol, Pancreatic ductal adenocarcinoma, Positive margins R1 Survival. PMID- 29339588 TI - Recurrent residual or progressive varicose veins: postoperative long term follow up of 353 patients. AB - AIM: This study aimed to evaluate the postoperative incidence of recurrent varicose veins (vv) and the possibility to differentiate the different types of recurrence. MATERIAL OF STUDY: Patients who underwent surgery for saphenofemoral junction (SFJ) incompetence, great saphenous vein (GSV) varicosity and at least one perforator incompetence and varicosity of tributaries between January 1998 and December 2003 were selected for the study. Surgery consisted in SFJ flush ligation, GSV stripping, perforator vein ligature, and phlebectomies. Patients were assessed by detailed interview, clinical examination, and color duplex imaging after 10 years. The differentiation in recurrent, residual and progressive vv was done by comparison of the pre-and intraoperative and the phlebographic documentation in particular with the findings on follow-up.. RESULTS: 353 patients (400 legs) were analyzed at 120 +/- 21 months. At follow up the vv were classified as recurrent in 23,75%, residual in 23,25%, and progressive in 21% of cases. Nine patients (1.9%) were reoperated after 70 +/- 33 months, and 17 (3.5%) underwent sclerotherapy during follow-up. CONCLUSIONS: Recurrent, residual, and progressive vv can be clearly differentiated with the presented methodology. The authors suggest a revised definition (NEVVAS- new vv after surgery) because the term recurrent and the known acronyms do not embrace exactly the three types of vv after surgery. Since residual and many recurrent vv are due to avoidable technical or tactical errors, it is important to classify them properly in order to avoid these complications. KEY WORDS: Neovarices, NEVVAS (New Varicose Veins After Surgery), Neovascularization, Recurrent varicose veins, Residual varicose veins, Progressive varicose veins. PMID- 29339589 TI - Patient-perceived outcomes of different anaesthetic techniques in classical surgical treatment of varicose veins of lower limbs. AB - AIM OF THE STUDY: To evaluate the effects of spinal or locoregional anaesthesia versus local tumescent anesthesia during traditional surgical treatment of saphenous reflux, in terms of pain and postoperative functional recovery. MATERIALS AND METHODS: From January to December 2014, 195 consecutive interventions of stripping of the greater saphenous vein for valvular incompetence were performed. In 114 cases spinal or locoregional anaesthesia was performed (group 1), in the remaining 81 cases local anaesthesia with the tumescence technique was carried out (group 2). All patients underwent an assessment of perceived pain by means of verbal rating scale before and at the end of surgery, at discharge and after a month. The times of recovery of ambulation during hospital stay and at the discharge were recorded and use of analgesic drugs during hospitalization and at home. At the end of the study, patients were asked to express their approval rating on the type of anaesthesia. RESULTS: Patients in group 2 experienced mild to moderate intraoperative pain more frequently than patients in group 1 (p<0.001), while patients in group 1 had more mild adverse anaesthesia-related events than patients in group 2. Patients in group 2 had faster recovery of ambulation and earlier discharge than patients in group 1.Thirty-day results were similar in the two groups; however, patients in group 2 had a higher degree of satisfaction than patients in group 1 with regard to the type of anaesthesia (p<0.001) CONCLUSIONS: Both locoregional and local tumescent anaesthesia are effective and well accepted by the patients, with similar intra-hospital and 30-day results. KEY WORDS: Great Saphenous Vein, Local tumescent anaesthesia, Pain, Stripping. PMID- 29339590 TI - Rectal cancer: factors predicting short outcomes after radical anterior resection. AB - AIM: This study analyzes risk factors implicated in postoperative complications and mortality after anterior resection in rectal cancer. MATERIAL AND METHODS: A total number of 378 patients with anterior rectal resection, diagnosed with rectal cancer and admitted at the IIIrd Surgery Clinic, "Octavian Fodor" Regional Institute of Gastroenterology and Hepatology, Romania, between 2009 and 2016. The inclusion criteria were anterior rectal resections with curative visa for rectal cancer. The complications we assessed are the following: anastomotic fistula, intra-abdominal infections, postoperative bowel obstruction and wound infection. RESULTS: There was statistical significance regarding male gender, emergency hospitalization, hypoproteinemia and the resumption of intestinal transit. Anterior rectal resection of tumors located on the middle rectum was associated with high rate of anastomotic fistula. Patients with manual suture of anastomosis developed intraabdominal abscess more frequently. In the multivariate analysis, hypoproteinemia and a number of lymph nodes >1 remained independently associated with the occurrence of wound infection. The 30-day mortality rate was 4.8% with 18 deaths and morbidity rate 20.6% with 78 cases. CONCLUSIONS: Major complications after radical resection for rectal cancer are dependent on multiple variables such as male patients, those admitted in emergency and patients with hypoproteinemia. Location of tumor on middle rectum, manual suture of anastomosis, number of lymph nodes > 1 were associated with high rate of morbidity. Patients with coronary heart disease and diabetes mellitus didn't had statistical significance, but the rate of morbidity and mortality remains high in this groups. KEY WORDS: Complications, Radical anterior resection, Rectal cancer, Risk factors. PMID- 29339591 TI - Perineural infiltration as a prognostic factor in surgically treated gallbladder cancer A single center experience and literature review. AB - INTRODUCTION: Gallbladder cancer (GBC) is the most incident cancer of the biliary tract with only 5-13% of the sufferers surviving for five years. The aim of this study was to evaluate the prognostic role of perineural invasion (PNI) and its association with several clinicopathological variables in a cohort of surgically treated patients, and through a comprehensive review of the scientific literature. MATERIALS AND METHODS: Twenty-five consecutive patients submitted to curative surgery for GBC from 2008 through 2016 were enrolled. Demographic, clinical and pathological data were retrieved from medical files, and specimens were re-examined by two experienced pathologists. The Pubmed database was searched for articles reporting on perineural infiltration on gallbladder cancer. RESULTS: Perineural invasion was observed in 14 (56%) cases, and it was more frequent in higher pathological stages. A statistically significant association was found with high preoperative serum Ca 19-9 levels. Fourteen (56%) patients died during the follow-up; survival was lower in patients with perineural invasion in comparison to those without, but not statistically significant. Twelve English-language articles reporting on PNI were retrieved and discussed. CONCLUSIONS: Perineural invasion is associated with higher stage and poorer survival in surgically treated GBC patients. In patients with locally advanced GBC resection of the extrahepatic biliary duct and frozen section examination of the distal stump must be taken into consideration, especially in cases of tumor arising from the hepatic side of the gallbladder. In cases without residual disease but with pathological evidence of PNI, a careful follow-up is suggested to early detect recurrences. KEY WORDS: Adenocarcinoma, Cancer, Gallbladder, Perineural infiltration, Surgery. PMID- 29339592 TI - Day surgery in Romania. AB - AIM: Well know in USA, Australia and then in western European countries, day surgery is still at the beginning in Romania and eastern European countries. In this paper we want to analyze the evolution and actual situation of day surgery in Romania and in County Emergency Hospital Timisoara (CEHT). MATERIAL AND METHODS: In the implementation of day surgery in our country there were two distinct periods. Between 2007- 2013 the CEHT negotiated its own day surgery baskets with Local Health Insurance Company (LHIC). Starting from 2014 until now, the National Health Insurance Company has established new day surgery baskets which can be negotiated between CEHT and LHIC. RESULTS: Our study shows that day surgery in CEHT has had an undulating evolution - after a rising development at the beginning it stopped for a few years and now it has an ascendant evolution. DISCUSSION: In this context, International Association for Ambulatory Surgery (IAAS) has initiated a series of actions to support implementation and development of day surgery in Romania and Eastern European countries. The first action was the support that the International Association for Ambulatory Surgery gave to the Romanian Society of Ambulatory Surgery in organizing on 15-16 September 2013 in Timisoara the course "Day Surgery - Making it Happen Overcoming Obstacles and Barriers". Discussions after the presentation of local realities in Eastern and Western Europe were particularly creative, being the stand in the accelerated development of day surgery in Romania. CONCLUSIONS: Day surgery and ambulatory surgery have many advantages for patients (increased comfort, lower surgical risk, minimal stress and low anxiety, high satisfaction rate), for hospital (reducing congestion in hospital, enabling it to have a better capacity to deal with serious cases), and for healthcare (increased economic efficiency, cost / patient / surgery is lower than for continuous admissions). Known in our country from 2000, the implementation of day surgery still faces many hardships. KEY WORDS: Day surgery, ambulatory surgery, Short hospitalization. PMID- 29339593 TI - The prognostic role of tumor size in patients with gastric cancer. AB - AIM: The identification of prognostic factors in gastric cancer is important for predicting patients' survival and determining therapeutic strategies. MATERIALS OF STUDY: A retrospective analysis ofpatients who underwent surgery for gastric cancer between 1996 and 2010. The appropriate cut-off value of tumor size related to survival was determined using receiver-operating characteristic (ROC) curves and it was 2,5 cm. Patients were divided into three groups: a small size group (SSG, < 2,5 cm), a medium size group (MSG, between 2,5 and 5 cm) and a large size group (LSG, >= 5 cm). RESULTS: Depth of invasion and lymph node metastasis resulted significantly related to tumor size (p < 0.05). Kaplan- Meier survival curves showed that OS rate was significantly higher in SSG patients. The prognosis of patients with tumor size < 2,5 cm was better than patients with tumors >= 2.5 cm in size (p < 0.01). DISCUSSION: The tumor size resulted significantly related to OS and it was related to depth of invasion and lymph node metastasis that are themselves prognostic factors. These results confirm and reinforced literature and suggest that at diagnostic pre-operative work-up we can yet define a prognostic value based on tumor size and underline the primary role of complete resection with free surgical margins and D2 lymphadenectomy. CONCLUSION: In patients with gastric cancer tumor size suggests information about the malignancy of the tumor: it is an important predictor of survival and 2,5 cm may be considered as a valid cut-off to define a better or worse prognosis. KEY WORDS: Gastric cancer, Prognosis,Survival, Tumor size. PMID- 29339594 TI - The effects of Crenotherapy and exercise in peripheral arterial occlusive disease. A comparison with simple exercise training. AB - BACKGROUND: Conservative therapies for patients affected by Peripheral Arterial Occlusive Disease (PAOD) aim first to correct the risk factors and to slow down the disease progression. Among these, exercise has positive effects on blood flow, muscle metabolism and well demonstrated systemic effects. These include reduction of chronic inflammation markers, improvement of walking mechanics and heart function. Controlled physical training increases the ability to perform the daily activities improving life expectancy of these patients. The aim of this study is to evaluate the effects and the effectiveness of physical training performed in thermal water compared to traditional treadmill walking exercise. METHODS: 98 patients affected by IIb stage PAOD, according to Leriche-Fontaine classification, were enrolled. Patients were randomized into two groups: the first arm carried out an intensive training program under medical supervision (group A); the second one carried out a rehabilitative exercise associated with crenotherapy (group B). The following parameters were detected: Ankle-Brachial pressure index (ABI), actual claudication distance (ACD), maximum walking distance (MWD), flow mediated dilatation (FMD) and the intima-media thickness (IMT). All patients underwent Doppler echocardiography and complete biochemical assay. RESULTS: In both groups, there was a statistically significant improvement of lipidaemia compared to baseline. When compared with each other, the two groups did not show statistically significant differences. There were no significant differences between the two groups regarding echocardiographic findings. Vascular reactivity study showed a statistically significant improvement of FMD after 3 months of exercise in both groups. In crenotherapy group (B) FMD values were significantly higher than the treadmill ones (A). In both groups a statistically significant improvement in ACD was observed CONCLUSIONS: Our experience shows that crenotherapy has similar effects compared to traditional physical training in the treatment of PAOD, being equally well tolerated and safe; it gives an advantage over conventional physical training in terms of ACD and MWD improvement, although not statistically significant, and it is extremely welcome to patients compared to traditional physical training. KEY WORDS: Arterioscleroses, Intermittent Claudicatio, Peripheral Arterial Diseasen, Physical Exercise, Rehabilitation. PMID- 29339595 TI - Surgical outcomes in patients with hepatic synchronous and metachronous colorectal metastases. AB - AIM: To evaluate the impact of several clinical and pathological factors on the outcomes of surgery for hepatic colorectal cancer metastasis. METHODS: Eighty four liver metastasectomies in 77 consecutive patients with 90 colorectal cancer hepatic metastases were performed in our institution from 2009 to 2014. Surgery was carried out in 75 cases, as two patients were not eligible for surgery. Among them 43 (Group A) were affected by synchronous, and 32 (Group B) by metachronous lesions. Furthermore, 9 reoperations were performed in patients with initially synchronous lesions. The follow-up after surgery included total body CT scan every 3 months for the first year, and every 6 months for 4 years thereafter. Blood level of CEA was determined every 3 months. RESULTS: The univariate analysis evidenced significantly more recurrences in patients with synchronous lesions (p=0.011), and higher grade, pN stage and CEA blood levels. In multivariate logistic regression analysis the statistically significant parameters found were: the pT stage (OR: 3.92, p = 0.039), the use of adjuvant chemotherapy for the colonic tumor (OR: 0.19, p = 0.025), and the adjuvant chemotherapy (OR: 4.11, p = 0.048). The global survival was 32 patients (41.5%), 17 with synchronous and 15 with metachronous lesions, and a significant difference in long-term survival between these two groups was found (p = 0.008). CONCLUSIONS: The most relevant prognostic factor in patients with hepatic colorectal cancer dissemination is the timing of metastasis; the metachronous lesions present better survival when surgically treated. KEY WORDS: Colorectal cancer, Liver, Metastasis, Surgery. PMID- 29339596 TI - Is ultrasound a reliable diagnostic tool for acute appendicitis? A single centre experience. AB - AIM: Aim of the present study is to evaluate the utility of US as a diagnostic method for acute appendicitis (AA) in a district general hospital, by use of accurate quality indices. MATERIAL AND METHODS: The records of all patients who underwent an appendicectomy in a one year period in a single centre were reviewed. The patients who underwent a preoperative US scan were included in the study in accordance to specific criteria and the results were statistically compared to the final surgical histology. RESULTS: 137 patients who underwent an US were included in the study, with 69 patients (23%) presenting a negative histology result. Overall, the US results correlated statistically significantly with the final histology results, with a specificity of 0.87, a sensitivity of 0.34 and an overall diagnostic accuracy of 0.51. DISCUSSION: The results of the study are comparable with the reported literature, presenting high specificity but a relatively low sensitivity, although great variability exists in the literature. US seems useful in confirming rather than excluding AA. CONCLUSION: In view of its advantages, the incorporation of ultrasonography into routine clinical practice when performed by an expert is recommended, but only in support of other diagnostic elements. The issue of low sensitivity should be further addressed. KEY WORDS: Appendicectomy, Diagnostic accuracy, Histology. PMID- 29339597 TI - Unexpected findings in the routine histopathological examinations of appendectomy specimens A retrospective analysis of 1,970 patients. AB - INTRODUCTION: Diseases and tumors of the appendix vermiformis are very rare, except for acute appendicitis. This study aimed to examine rare findings in the histopathologic examinations of specimens of patients undergoing appendectomy due to the diagnosis of acute appendicitis. METHODS: The files of 1,970 patients undergoing appendectomy due to the diagnosis of acute appendicitis between March 2012 and March 2016 were retrospectively investigated. Rare findings were found in 59 (3%) patients, and these were evaluated in detail. Patients' age, gender, pathology reports, and post-operation follow-ups were recorded. RESULTS: The rare histopathological findings of 59 patients were examined. Of these, 31 were female (52.5%) and 28 were male (47.5%). The average age was 33.1+/-18.2 years. The unusual findings were as follows: 16 Fibrous obliteration, 11 Enterobius vermicularis, 2 Schistosomiasis, 3 Appendiceal neuroma, 2 Granulomatous appendicitis, 1 Crohn's disease, 3 Chronic appendicitis, 1 Endometriosis, 2 Hyperplastic polyps, 9 Mucinous cystadenoma (+mucocele), 8 Carcinoid tumors and 1 Lymphoma. All of the malignant tumors were localized in the distal end of the appendix and all of the patients were treated with appendectomy. Patients with parasitic diseases also underwent anthelmintic treatment, while chemotherapy was administered to the patient with lymphoma. All of the patients diagnosed with malignancy were alive reported no problems at their follow-ups. CONCLUSION: Although all of the appendectomy samples were normal macroscopically, data from this study suggest that all specimens should be sent for routine investigation. KEY WORDS: Appendicitis, Appendectomy, Carcinoid, Mucocele, Endometriosis. PMID- 29339598 TI - Design parameter estimations for adjustable bubble size in bubble generating system. AB - In this study, we developed a customized low cost and low energy bubble generator that can control bubble size. Hence, it can be used not only in the water treatment process but also in various other processes. This device was able to generate bubbles with a very simple system using only a general pump and a mixing chamber. Increasing the number of partition walls in the mixing chamber reduced the bubble size. Furthermore, bubbles of a few hundred nanometers were produced by the shear stress caused by increasing the thickness of the partition wall. Although the generated sub-micron bubbles were too small for their exact size to be measured using an image analysis and particle counting method, it was possible to confirm their existence indirectly through the coalescence arising from ultrasonic irradiation. The device used in this research is simple and allows bubble size to be adjusted easily by controlling the design of the mixing chamber. Therefore, it can be applied to a water treatment process, as well as a variety of other processes. PMID- 29339599 TI - Full-scale performance of selected starch-based biodegradable polymers in sludge dewatering and recommendation for applications. AB - Agricultural reuse of dewatered sludge is a valid route for sludge valorization for small and mid-size wastewater treatment plants (WWTPs) due to the direct utilization of nutrients. A more stringent of German fertilizer ordinance requires the degradation of 20% of the synthetic additives like polymeric substance within two years, which came into force on 1 January 2017. This study assessed the use of starch-based polymers for full-scale dewatering of municipal sewage sludge. The laboratory-scale and pilot-scale trials paved the way for full scale trials at three WWTPs in Germany. The general feasibility of applying starch-based 'green' polymers in full-scale centrifugation was demonstrated. Depending on the sludge type and the process used, the substitution potential was up to 70%. Substitution of 20-30% of the polyacrylamide (PAM)-based polymer was shown to achieve similar total solids (TS) of the dewatered sludge. Optimization of operational parameters as well as machinery set up in WWTPs is recommended in order to improve the shear stability force of sludge flocs and to achieve higher substitution potential. This study suggests that starch-based biodegradable polymers have great potential as alternatives to synthetic polymers in sludge dewatering. PMID- 29339600 TI - Scaling up and kinetic model validation of Direct Black 22 degradation by immobilized Penicillium chrysogenum. AB - This research was undertaken to develop tools that facilitate the industrial application of an immobilized loofah-fungi system to degrade Direct Black 22 (DB22) azo dye. In laboratory-scale tests, the DB22, and loofah as support, were used. Assays without loofah were used as a free-cells control. The use of natural carriers to facilitate adhesion and growth of the fungi has shown favorable results. The degradation rate of immobilized cells increased twice as compared to free-cells control. At day 5 the decolorization was almost complete, while without loofah the total decolorization took more than 10 days. After 10 days, the extent of growth was nine times higher for the immobilized assays in comparison with the control flask. In subsequent experiments decolorization of DB22 was proven in a bench-scale reactor. A previously developed kinetic model was validated during the process. The model validation over free-cells assays gives an average normalized root mean squared error (ANRMSE) of 0.1659. Recalibration steps allowed prediction of the degradation with immobilized cells, resulting in an ANRMSE of 0.1891. A new calibration of the model during the scaling-up process yielded an ANRMSE of 0.1136 for DB22. The results presented encourage the use of this modeling tool in industrial scale facilities. PMID- 29339601 TI - Ammonium removal in landfill leachate using SBR technology: dispersed versus attached biomass. AB - Large concentrations and oscillations of ammonium nitrogen (NH4+-N) in municipal landfill leachate pose considerable constraints to its further treatment in central wastewater treatment plants. The aim of this study was to evaluate and optimize two technologies for the pre-treatment of 600 L/day of landfill leachate: in particular, to optimize their operational conditions for NH4+-N removal up to a level appropriate for discharge to sewers, i.e. <200 mg/L. Both technologies were based on a sequencing batch reactor (SBR), with two different biomass processes: (A) SBR with dispersed/flocculated biomass and (B) SBR with biomass attached to carriers. The results revealed that both technologies successfully reduced the NH4+-N from 666 mg/L (on average) at the inflow to below 10 mg/L at the outflow with alkalinity adjustment in a 12-hour cycle. Both technologies achieved 96% removal efficiencies for NH4+-N. However, SBR with dispersed biomass showed higher flexibility under varying conditions due to the shorter adaptation time of the biomass. PMID- 29339602 TI - Performance and stability of an expanded granular sludge bed reactor modified with zeolite addition subjected to step increases of organic loading rate (OLR) and to organic shock load (OSL). AB - This paper shows the effect of organic shock loads (OSLs) on the anaerobic digestion (AD) of synthetic swine wastewater using an expanded granular sludge bed (EGSB) reactor modified with zeolite. Two reactors (R1 and R2), each with an effective volume of 3.04 L, were operated for 180 days at a controlled temperature of 30 degrees C and hydraulic retention time of 12 h. In the case of R2, 120 g of zeolite was added. The reactors were operated with an up-flow velocity of 6 m/h. The evolution of pH, total Kjeldahl nitrogen, chemical oxygen demand (COD) and volatile fatty acids (VFAs) was monitored during the AD process with OSL and increases in the organic loading rate (OLR). In addition, the microbial composition and changes in the structure of the bacterial and archaeal communities were assessed. The principal results demonstrate that the presence of zeolite in an EGSB reactor provides a more stable process at higher OLRs and after applying OSL, based on both COD and VFA accumulation, which presented with significant differences compared to the control. Denaturing gradient gel electrophoresis band profiles indicated differences in the populations of Bacteria and Archaea between the R1 and R2 reactors, attributed to the presence of zeolite. PMID- 29339603 TI - Simultaneous organic matter removal and nitrification of an inert self-supporting immersed media to upgrade aerated lagoons. AB - A pilot study was performed to evaluate the potential of an inert self-supported immersed fixed film media to upgrade aerated lagoons. Simultaneous organic matter removal and nitrification was assessed under different loading rates and temperatures (near 0 degrees C) using 12 laboratory-scale reactors operated in parallel. Test results showed that both the temperature and the load have an influence on organic matter effluent concentrations. Effluent quality seemed related to the observed biofilm thickness. Thicker biofilm is believed to have contributed to biomass detachment and increased particulate organic matter concentrations in the effluent. Simultaneous organic removal and nitrification was obtained at loads above 5 g CBOD5/m2.d. The highest nitrification rate at 0.4 degrees C was obtained for the smallest load, which showed a nitrification limitation close to freezing point. PMID- 29339604 TI - Modeling biosorption of Cr(VI) onto Ulva compressa L. from aqueous solutions. AB - The marine biomass Ulva compressa L. (ECL) was used as a low-cost biosorbent for the removal of Cr(VI) from contaminated aqueous solutions. The operating variables were optimized: pH ~ 2, initial concentration of 25 mg/L, solid/liquid ratio of 6 g/L and a temperature of 50 degrees C, leading to an uptake elimination of 96%. A full factorial experimental design technique enabled us to obtain a mathematical model describing the Cr(VI) biosorption and to study the main effects and interactions among operational parameters. The equilibrium isotherm was analyzed by the Langmuir, Freundlich and Dubinin-Radushkevich (D-R) models; it has been found that the adsorption process follows well the Langmuir model. Kinetic studies showed that the pseudo-second order model describes suitably the experimental data. The thermodynamic parameters indicated an endothermic heat and a spontaneity of the Cr(VI) biosorption onto ECL. PMID- 29339605 TI - Enhancing nitrogen removal efficiency in a dyestuff wastewater treatment plant with the IFFAS process: the pilot-scale and full-scale studies. AB - The activated sludge (AS) process is widely applied in dyestuff wastewater treatment plants (WWTPs); however, the nitrogen removal efficiency is relatively low and the effluent does not meet the indirect discharge standards before being discharged into the industrial park's WWTP. Hence it is necessary to upgrade the WWTP with more advanced technologies. Moving bed biofilm processes with suspended carriers in an aerobic tank are promising methods due to enhanced nitrification and denitrification. Herein, a pilot-scale integrated free-floating biofilm and activated sludge (IFFAS) process was employed to investigate the feasibility of enhancing nitrogen removal efficiency at different hydraulic retention times (HRTs). The results showed that the effluent chemical oxygen demand (COD), ammonium nitrate (NH4+-N) and total nitrogen (TN) concentrations of the IFFAS process were significantly lower than those of the AS process, and could meet the indirect discharge standards. PCR-DGGE and FISH results indicated that more nitrifiers and denitrifiers co-existed in the IFFAS system, promoting simultaneous nitrification and denitrification. Based on the pilot results, the IFFAS process was used to upgrade the full-scale AS process, and the effluent COD, NH4+-N and TN of the IFFAS process were 91-291 mg/L, 10.6-28.7 mg/L and 18.9 48.6 mg/L, stably meeting the indirect discharge standards and demonstrating the advantages of IFFAS in dyestuff wastewater treatment. PMID- 29339606 TI - Study of aggregation in surface sludge deposits from 14 full-scale French constructed wetlands using particle size distribution and dynamic vapor sorption analyses. AB - French vertical flow constructed wetlands (French VFCWs) are widely used for the treatment of wastewaters from small communities. In the system, unsettled wastewater is percolated through two successive stages of filter-cells planted with reeds. This causes the formation of a surface sludge layer. This layer plays positive roles in the treatment performance, but also leads to clogging. The objective of this study was to contribute to the description of the sludge deposits characteristics and their dynamics of evolution, which may control the development of clogging. Representative samples of sludge deposits were taken from 14 French VFCWs full-scale plants and analyzed for particle size, dynamic vapor sorption and other parameters of composition to compare their structure and evaluate the factors of influence. Results showed that ageing of the surface deposits layer over the years of operation in each plant induced the formation and integration of microaggregates within the initial macrostructure of fresh organic matter (OM). The humification process of the OM was found to play a key role in the aggregation process. The injection of FeCl3 operated to precipitate phosphates before filtration was found to accelerate the aggregation process in the early phase (<1 year) of operation of the sludge. PMID- 29339607 TI - Batch and fixed-bed column study for p-nitrophenol, methylene blue, and U(VI) removal by polyvinyl alcohol-graphene oxide macroporous hydrogel bead. AB - There is an increasing need to explore effective and clean approaches for hazardous contamination removal from wastewaters. In this work, a novel bead adsorbent, polyvinyl alcohol-graphene oxide (PVA-GO) macroporous hydrogel bead was prepared as filter media for p-nitrophenol (PNP), dye methylene blue (MB), and heavy metal U(VI) removal from aqueous solution. Batch and fixed-bed column experiments were carried out to evaluate the adsorption capacities of PNP, MB, and U(VI) on this bead. From batch experiments, the maximum adsorption capacities of PNP, MB, and U(VI) reached 347.87, 422.90, and 327.55 mg/g. From the fixed-bed column experiments, the adsorption capacities of PNP, MB, and U(VI) decreased with initial concentration increasing from 100 to 400 mg/L. The adsorption capacities of PNP, MB, and U(VI) decreased with increasing flow rate. Also, the maximum adsorption capacity of PNP decreased as pH increased from 3 to 9, while MB and U(VI) presented opposite tendencies. Furthermore, the bed depth service Time (BDST) model showed good linear relationships for the three ions' adsorption processes in this fixed-bed column, which indicated that the BDST model effectively evaluated and optimized the adsorption process of PVA-GO macroporous hydrogel bead in fixed-bed columns for hazardous contaminant removal from wastewaters. PMID- 29339608 TI - Pilot study of oilfield wastewater treatment by micro-flocculation filtration process. AB - In order to meet the latest Environmental Protection Law of China on wastewater discharge standards, this paper studied a pilot-scale micro-flocculation filtration pretreatment process for the treatment of oilfield wastewater. The experiment showed that the removal rate of oil and suspended solids (SS) respectively increased from 91.52% to 95.38% and from 66.42% to 97.19%. After the treatment by the micro-flocculation filtration device, the relevant characteristics of the discharge wastewater satisfied the latest standards continuously. Moreover, the polyaluminum chloride (PAC) dosage was reduced from 200 mg/L to 100 mg/L (50 mg/L in micro-flocculation device and 50 mg/L in the cyclone reactor) at the same time. In order to decrease the degree of scaling in the filter, ceramsite was chosen as the filter material instead of quartz sand that is widely applied in the oilfields. The scaling experiment showed that the HCO3-, Ca2+ and Mg2+ contents in the extract from quartz sand after the scaling study were increased by 38.05, 35.91 and 0.28 mg/L, respectively. Meanwhile, the HCO3-, Ca2+ and Mg2+ contents in the extract from ceramsite were only increased by 13.14, 6.26 and 0.27 mg/L, respectively. Therefore, the ceramsite is not so prone to scaling as compared to quartz sand under identical test conditions, which avoided a hardened and impervious filter after operating for some time. These results suggest that the micro-flocculation filtration with the ceramsite as filter media is a suitable pretreatment process for the oilfield wastewater treatment. PMID- 29339609 TI - Effects of pH and coexisting chemicals on photolysis of perfluorooctane sulfonate using an excited xenon dimer lamp. AB - Vacuum ultraviolet (VUV) photolysis at the wavelength of 172 nm in a sulfate solution was introduced as a more efficient process for perfluorooctane sulfonate (PFOS) degradation than ultraviolet (UV) photolysis at 254 nm. The effects of pH and coexisting chemicals on VUV photolysis under the coexistence of 100 mM sulfate were investigated. VUV irradiation successfully degraded PFOS, and the degradation rate was 5.5 times higher than by UV photolysis. Direct VUV photolysis was inferred to mainly contribute to PFOS degradation. PFOS degradation by VUV irradiation was enhanced at pH less than 2 due to sulfate radicals generated via VUV photolysis of sulfate ions. Consequently, VUV photolysis was superior to UV photolysis for PFOS removal on both the removal rate and energy efficiency. However, the inorganic chemicals phosphoric acid and nitric acid strongly inhibited PFOS degradation, probably by masking PFOS from VUV rays by their VUV absorption. Accordingly, PFOS separation from inorganic materials such as phosphate and nitrate will be recommended for the application of VUV techniques for PFOS removal. In this research, organic solvent abstraction was inferred to be one of candidates for PFOS separation. PMID- 29339610 TI - Effect of precursor type on the reduction of concentrated nitrate using zero valent copper and sodium borohydride. AB - In this study, we demonstrated that the choice of precursor has a strong effect on the reduction of nitrate (NO3-) using zero-valent copper (Cu0) synthesized by sodium borohydride (NaBH4). Different precursors: CuSO4, CuO, Cu2O, Cu powder, and Cu mesh were used to reduce NO3- at 677 mg-N/L under the reducing conditions of NaBH4. Compared with the prehydrolyzed samples, those prepared without prehydrolysis exhibited lower reduction rates, longer times and higher concentrations of nitrite (NO2-) intermediate. It was found that one-time addition of NaBH4 resulted in higher reduction rate and less NO2- intermediate than two-step addition. Results showed that Cu0 from CuSO4 possessed the smallest particle size (890.9 nm), highest surface area (26.0 m2/g), and highest reaction rate (0.166 min-1). Values of pseudo-first-order constant (kobs) were in the order: CuSO4 > CuO > Cu2O > Cu powder >Cu mesh. However, values of surface area normalized reaction rate (kSA) were approximately equal. It was proposed that NO3 was reduced to NO2- on Cu0, and then converted to NH4+ and N2, respectively; H2 generated from both NaBH4 hydration and Cu (II) reduction contributed to NO3- reduction as well. PMID- 29339611 TI - Mechanism of 1,4-dioxane microbial degradation revealed by 16S rRNA and metatranscriptomic analyses. AB - 1,4-Dioxane (dioxane), a probable human carcinogen, often exists in industrial wastewater and domestic sewage. In this study, we applied 16S rRNA and metatranscriptomic methods to analyze the dioxane biodegradation mechanism by activated sludge. Tetrahydrofuran (THF) was added as an essential co-metabolite to promote the degradation of dioxane. We found the dioxane removal ratio increased with increasing THF concentrations. When the THF concentration increased from 60.0 to 200.0 mg/L, the dioxane degradation rate was stable. Three additions of ~60.0 mg/L THF resulted in better dioxane degradation than one addition of 200 mg/L THF. Ammonia-oxidizing and denitrifying bacteria with methane monooxygenases (MOs) and ammonia MOs played the most important roles during the degradation of dioxane. Kyoto Encyclopedia of Genes and Genomes metabolic pathway and functional genes analyses showed that the activated sludge system was complex and stable when dioxane was added. In future studies, primers should be designed to identify specific bacteria and functional MO genes, which would help reveal the function of various bacteria and their MOs during dioxane degradation. PMID- 29339612 TI - Industrial wastewater treatment with a bioelectrochemical process: assessment of depuration efficiency and energy production. AB - Development of renewable energy sources, efficient industrial processes, energy/chemicals recovery from wastes are research issues that are quite contemporary. Bioelectrochemical processes represent an eco-innovative technology for energy and resources recovery from both domestic and industrial wastewaters. The current study was conducted to: (i) assess bioelectrochemical treatability of industrial (dairy) wastewater by microbial fuel cells (MFCs); (ii) determine the effects of the applied organic loading rate (OLR) on MFC performance; (iii) identify factors responsible for reactor energy recovery losses (i.e. overpotentials). For this purpose, an MFC was built and continuously operated for 72 days, during which the anodic chamber was fed with dairy wastewater and the cathodic chamber with an aerated mineral solution. The study demonstrated that industrial effluents from agrifood facilities can be treated by bioelectrochemical systems (BESs) with >85% (average) organic matter removal, recovering power at an observed maximum density of 27 W m-3. Outcomes were better than in previous (shorter) analogous experiences, and demonstrate that this type of process could be successfully used for dairy wastewater with several advantages. PMID- 29339613 TI - Sorption of Cr, Pb, Cu, Zn, Cd, Ni, and Co to nano-TiO2 in seawater. AB - In this study, the role of nanoparticles in complex aqueous matrices such as the Baltic Sea was investigated in batch-mode experiments in which titanium dioxide nanoparticles (nano-TiO2) were tested for their ability to remove heavy metals (Cr, Pb, Cu, Zn, Cd, Ni, Co) from multicomponent spiked and non-spiked Baltic Sea water. The experimental data were analyzed using different isotherms (Langmuir, Freundlich, Dubinin-Kaganer-Radushkevich (DKR)) and models (pseudo-first-order and pseudo-second-order models, the double-exponential model, and the Weber Morris model). The equilibria and kinetic investigations showed that metal sorption to nano-TiO2 occurs in a two-step, multilayer process and that there is strong competition for sorption sites. The results of the DKR isotherm and dilution experiment indicated weak electrostatic bonds, except for Pb. The distribution coefficient values (1.8 * 103 to 2.8 * 105 ml g-1) were consistent with the good sorbent properties of nano-TiO2 and supported the use of the particles in seawater purification technologies. However, metal-enriched nano TiO2 may also act as an effective carriers of metals to marine sediments, which could increase their availability to benthic organisms. PMID- 29339614 TI - Application of image processing on struvite recovery from swine wastewater by using the fluidized bed. AB - Fluidized granulation is one of the common methods used in wastewater treatment and resource recovery with harvesting millimeter-scale large particles. Presently, effective methods are lacking to measure the fluidized granules ranging from micro- to millimeter scales, with the consequence of ineffectively controlling and optimizing the granulation process. In this work, recovering struvite (MgNH4PO4.6H2O) from swine wastewater by using a fluidized bed was taken as an example. Image processing was applied to analyze the properties of different types of struvite granules, including morphology, particle size distribution, number density and mass concentration. Four stages of the struvite crystal evolution were therefore defined: aggregation, aggregate compaction, cluster-agglomerating and coating growth. These stages could occur simultaneously or sequentially. Up-flow rates of 30-80 mm/s in the fluidized bed sustained 600 876 g/L granular solids. Results revealed that the coating-growth granules were formed with compact aggregates or cluster-agglomerating granules as the nuclei. The growth rates for the different types of particles, including population growth, mass increase and particle size enlargement, were determined. In final, a schematic illustration for struvite granulation process is also presented. PMID- 29339615 TI - Adsorption performance of polydopamine-modified attapulgite granular adsorbent for methylene blue. AB - Polydopamine-modified granule organo-attapulgite adsorbent (PDA-GOAT) was facilely prepared via a dip-coating approach. The samples were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Surface area and pore size were calculated from the Brunauer-Emmett-Teller method by N2 adsorption-desorption isotherm. The adsorption behaviour of methylene blue (MB) onto PDA-GOAT was systematically investigated. The experimental data revealed that the adsorption process fitted well with the pseudo-second-order kinetics equation and the adsorption isotherm fitted better with the Langmuir model. Thermodynamic analyses illustrated that MB adsorption onto PDA-GOAT was a physisorption endothermic process. Importantly, PDA-GOAT can be regenerated by NaBH4 aqueous solution. The obtained results prove that PDA-GOAT can be a superior reusable adsorbent for the removal of MB from effluent. PMID- 29339616 TI - COD removal from leachate by electrocoagulation process: treatment with monopolar electrodes in parallel connection. AB - This study examines the removal of chemical oxygen demand (COD) from landfill leachate generated from the municipal landfill site of Bingol, Turkey. The effect of parameters such as current density, pH, and inter-electrode distance during the electrocoagulation (EC) process on COD removal of the process was investigated. Moreover, for COD removal, the energy consumption and operating costs were calculated for iron electrode under the EC conditions. COD removal efficiency was 72.13% at the current density of 16 mA m-2, pH of 8.05, and the inter-electrode distance of 9 mm at the detention time of 60 min with iron electrode and the COD concentration was reduced from 6,100 mg L-1 to 1,700 mg L-1 by EC. The highest value of the electrical energy and electrode consumptions per kg of COD in the optimum conditions were determined as 0.055 kWh kg-1 COD and 3.43 kg kg-1 COD and the highest operating cost value was found to be 1.41 US$ kg 1 COD for 0-60 min time intervals. PMID- 29339617 TI - Characteristics of N2O production and hydroxylamine variation in short-cut nitrification SBR process. AB - In order to study the characteristics of nitrous oxide (N2O) production and hydroxylamine (NH2OH) variation under oxic conditions, concentrations of NH2OH and N2O were simultaneously monitored in a short-cut nitrification sequencing batch reactor (SBR) operated with different influent ammonia concentrations. In the short-cut nitrification process, N2O production was increased with the increasing of ammonia concentration in influent. The maximum concentrations of dissolved N2O-N in the reactor were 0.11 mg/L and 0.52 mg/L when ammonia concentrations in the influent were 50 mg/L and 70 mg/L respectively. Under the low and medium ammonia load phases, the concentrations of NH2OH-N in the reactor were remained at a low level which fluctuated around 0.06 mg/L in a small range, and did not change with the variation of influent NH4+-N concentration. Based on the determination results, the half-saturation of NH2OH in the biochemical conversion process of NH2OH to NO2--N was very small, and the value of 0.05 mg NH2OH-N/L proposed in the published literature was accurate. NH2OH is an important intermediate in the nitrification process, and the direct determination of NH2OH in the nitrification process was beneficial for revealing the kinetic process of NH2OH production and consumption as well as the effects of NH2OH on N2O production in the nitrification process. PMID- 29339618 TI - Rheological and electrical properties used to investigate the coagulation process during sludge treatment. AB - Analyses of rheological properties and electrical conductivity (sigmadc) at direct current have been employed in order to investigate the effects of calcium oxide on the coagulation process during sludge treatment in the textile industry. In this context, rheological and electrical measurements were performed on five samples - one that contained raw sludge and the other four that were prepared from the raw sludge and different amounts of calcium oxide: 2, 3, 4, 5% (w/w). Rheological behavior of these samples was analyzed using the Herschel-Bulkley modified model. The influence of calcium oxide content on the rheological parameters such as infinite viscosity, the yield stress, the consistency coefficient, and the consistency index, are presented and discussed. The impact of the calcium oxide content on pH and conductivity were also examined. Similar behaviors have been seen in the evolution of conductivity and infinite viscosity as a function of the calcium oxide content. These latter characteristics were modeled by an equation using two power laws. This equation was able to fit very well the evolution of electrical conductivity and also the viscosity versus the percentage of calcium oxide to predict the optimal amount of calcium oxide (3%) to achieve the coagulation step during sludge treatment. PMID- 29339619 TI - Improved sludge dewaterability and hydrolysis performance after pretreatment with Fenton's reagent. AB - The dewaterability of excess sludge significantly improved upon pretreatment with Fenton's reagent in this study. After 0.9 g/L of Fe2+ and 5.0 g/L of H2O2 were added to the sludge, and reacted for 2 h at pH = 4, the specific resistance to filtration (SRF) of the excess sludge decreased from an initial value of 29.74 * 1012 m/kg to 6.49 * 1012 m/kg. The factors that affected this improvement in sludge dewaterability as evaluated by SRF reduction showed the following order: H2O2 > pH > Fe2+ > reaction time. Furthermore, the hydrolysis performance of the sludge under the optimal reaction conditions was investigated. The results indicated that the concentration of soluble chemical oxygen demand in the supernatant increased almost 14 times compared to raw sludge, and the contents of soluble protein and soluble polysaccharide were more than 8 and 17 times higher, respectively, than for the untreated situation. However, the amounts of ammonia nitrogen (NH4+-N) and phosphate (PO43--P) released from the sludge showed different trends: NH4+-N increased by 200%, while PO43--P decreased by 82%. The production of volatile fatty acids (VFAs) from the treated sludge showed that total VFAs increased by 66%, and iso-butylacetic acid was the dominant product among the total VFAs. PMID- 29339620 TI - The membrane fouling mechanisms of the PAC/BPAC-UF combined process used to treat the secondary effluent from municipal wastewater treatment plant. AB - The combined processes of powdered activated carbon/biological powdered activated carbon- ultrafiltration (PAC/BPAC-UF) were used to treat secondary effluent. In this study, the effect of PAC and BPAC on membrane flux, membrane resistance and the removal of different molecular weight organic compounds were investigated. In addition, the structure characteristics of the microorganisms of the BPAC were analyzed. The results showed that the optimum dosage of PAC and BPAC was 10 mg/L and 40 mg/L respectively. The reversible membrane fouling resistance of BPAC-UF was higher than that of PAC-UF, and the two processes had the least irreversible resistance at the best dosage. The biodegradation of BPAC increased the concentration of small molecular weight organic matter up to 10,000 Da in the membrane effluent. So the dissolved organic carbon (DOC) removal effect of BPAC UF process worsened. Microorganisms such as Proteobacteria, Bacteroidetes, Planctomycetes and other microorganisms on the surface of the BPAC enhanced the removal of organic matter in water. The results of scanning electron microscopy (SEM) scans showed that there was net mucus membrane on the UF membrane surface before the backwashing of the BPAC-UF process which increased the proportion of reversible pollution resistance. The physical flushing effect of BPAC-UF was better than that of direct UF and PAC-UF processes. PMID- 29339621 TI - Highly enhanced adsorption of Congo red by functionalized finger-citron-leaf based porous carbon. AB - A novel high-performance porous carbon material, lanthanum(III)-doped finger citron-leaf-based porous carbon (La/FPC), has been synthesized and used as an adsorbent for anion dye Congo red (CR). The La/FPC was characterized by nitrogen adsorption and desorption isotherms, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy. The adsorption performance of CR by the FPC and La/FPC composites with different contents of lanthanum(III) were evaluated in fixed-bed breakthrough experiments and batch tests at room temperature (298 K). The La/FPC had a high CR uptake capacity, which was superior to those previously reported for other adsorbents. The La/FPC sorbents can be easily regenerated using an ethanol elution technique, and after five cycles the reused La/FPC maintained about 98% of its original CR adsorption capacity. The adsorption kinetics of CR onto the lanthanum(III)-doped FPCs followed a pseudo-second-order kinetic model and fitted well with a Langmuir adsorption isotherm. La/FPC is a promising adsorbent for the removal of the anionic dyes from wastewater. PMID- 29339622 TI - Identification of fouling mechanisms in MBRs at constant flowrate: model applications and SEM-EDX characterizations. AB - A fundamental understanding of fouling mechanisms is critical to improving filtration operations. The performance of four parallel membrane bioreactors (MBRs) with different sludge retention times (SRTs) was monitored during long term constant flowrate filtration. The characteristics of the membrane and transmembrane pressure (TMP) profiles obtained were studied to demonstrate fouling mechanisms. Both classical blocking models and their combined models were evaluated. The intermediate model provided very good agreement with all the TMP data. However, the combined cake-intermediate and intermediate-standard models were more effective in the description of the experimental data. Contributions analysis indicated that the cake, intermediate and standard blocking models were the dominant fouling mechanisms. Scanning electron microscopy and energy dispersive X-ray (SEM-EDX) imaging showed that cake blocking by organic matter and standard blocking by inorganic matter made the main contributions to membrane fouling. The combined cake-intermediate and intermediate-standard models may be applicable to systems where these two models are consistent with the experimentally observed fouling mechanisms in an MBR. PMID- 29339623 TI - Effects of scale and Froude number on the hydraulics of waste stabilization ponds. AB - This paper presents the findings from a series of computational fluid dynamics simulations to estimate the effect of scale and Froude number on hydraulic performance and effluent pollutant fraction of scaled waste stabilization ponds designed using Froude similarity. Prior to its application, the model was verified by comparing the computational and experimental results of a model scaled pond, showing good agreement and confirming that the model accurately reproduces the hydrodynamics and tracer transport processes. Our results showed that the scale and the interaction between scale and Froude number has an effect on the hydraulics of ponds. At 1:5 scale, the increase of scale increased short circuiting and decreased mixing. Furthermore, at 1:10 scale, the increase of scale decreased the effluent pollutant fraction. Since the Reynolds effect cannot be ignored, a ratio of Reynolds and Froude numbers was suggested to predict the effluent pollutant fraction for flows with different Reynolds numbers. PMID- 29339624 TI - The combined effects of carbon/nitrogen ratio, suspended biomass, hydraulic retention time and dissolved oxygen on nutrient removal in a laboratory-scale anaerobic-anoxic-oxic activated sludge biofilm reactor. AB - The current trend in sustainable development deals mainly with environmental management. There is a need for economically affordable, advanced treatment methods for the proper treatment and management of domestic wastewater containing excess nutrients (such as nitrogen and phosphorus) which can cause eutrophication. The reduction of the excess nutrient content of wastewater by appropriate technology is of much concern to the environmentalist. In the current study, a novel integrated anaerobic-anoxic-oxic activated sludge biofilm (A2O-AS biofilm) reactor was designed and operated to improve the biological nutrient removal by varying reactor operating conditions such as carbon to nitrogen (C/N) ratio, suspended biomass, hydraulic retention time (HRT) and dissolved oxygen (DO). Based on various trials, it was seen that the A2O-AS-biofilm reactor achieved good removal efficiencies with regard to chemical oxygen demand (95.5%), total phosphorus (93.1%), ammonia nitrogen concentration (NH4+-N) (98%) and total nitrogen (80%) when the reactor was maintained at C/N ratio of 4, suspended biomass of 3 to 3.5 g/L, HRT of 10 h, and DO of 1.5 to 2.5 mg/L. Scanning electron microscopy (SEM) of suspended and attached biofilm showed a dense structure of coccus and bacillus bacteria with the diameter ranging from 0.3 to 1.2 MUm. The Fourier transform infrared (FTIR) spectroscopy results indicated phosphorylated macromolecules and carbohydrates mix or bind with extracellular proteins in exopolysaccharides. PMID- 29339625 TI - Acid production potentials of massive sulfide minerals and lead-zinc mine tailings: a medium-term study. AB - Weathering of sulfide minerals is a principal source of acid generation. To determine acid-forming potentials of sulfide-bearing materials, two basic approaches named static and kinetic tests are available. Static tests are short term, and easily undertaken within a few days and in a laboratory. In contrast, kinetic tests are long-term procedures and mostly carried out on site. In this study, experiments were conducted over a medium-term period of 2 months, not as short as static tests and also not as long as kinetic tests. As a result, pH and electrical conductivity oscillations as a function of time, acid-forming potentials and elemental contents of synthetically prepared rainwater leachates of massive sulfides and sulfide-bearing lead-zinc tailings from abandoned and currently used deposition areas have been determined. Although the lowest final pH of 2.70 was obtained in massive pyrite leachate, massive chalcopyrite leachate showed the highest titrable acidity of 1.764 g H2SO4/L. On the other hand, a composite of currently deposited mine tailings showed no acidic characteristic with a final pH of 7.77. The composite abandoned mine tailing leachate had a final pH of 6.70, close to the final pH of massive galena and sphalerite leachates, and produced a slight titrable acidity of 0.130 g H2SO4/L. PMID- 29339626 TI - Estimation of the dilution field near a marine outfall by using effluent turbidity as an environmental tracer and comparison with dye tracer data. AB - The alternative use of effluent turbidity to determine the dilution field of a domestic marine outfall located off the city of Rio de Janeiro was evaluated through field work comprising fluorescent dye tracer injection and tracking with simultaneous monitoring of sea water turbidity. A preliminary laboratory assessment was carried out with a sample of the outfall effluent whose turbidity was measured by the nephelometric method before and during a serial dilution process. During the field campaign, the dye tracer was monitored with field fluorometers and the turbidity was observed with an optical backscattering sensor interfaced to an OEM data acquisition system. About 4,000 samples were gathered, covering an area of 3 km * 3 km near the outfall diffusers. At the far field - where a drift towards the coastline was observed - the effluent plume was adequately labeled by the dye tracer. The turbidity plume was biased due to the high and variable background turbidity of sea water. After processing the turbidity dataset with a baseline detrending method, the plume presented high correlation with the dye tracer plume drawn on the near dilution field. However, dye tracer remains more robust than effluent turbidity. PMID- 29339627 TI - Corrigendum: Water Science and Technology 76 (2), 323-336 Detoxification of photo catalytically treated 2-chlorophenol: optimization through response surface methodology, doi: 10.2166/wst.2017.152. PMID- 29339629 TI - Utility of Routine Surveillance Imaging for Hodgkin Disease following Autologous Transplant: Experiences from a Single Institution. AB - BACKGROUND: Surveillance scans performed after autologous stem cell transplant (auto-HCT) for patients with Hodgkin disease (HD) have no proven survival benefit. METHODS: We studied survival differences among patients with HD after auto-HCT whose recurrences were detected on clinical history and exam, versus those detected on routine surveillance scan. RESULTS: Among the 98 patients with HD that underwent auto-HCT from 2000 to 2014 at our institution, 30 relapsed, of which 21 were detected radiologically and 9 clinically. There were no statistically significant differences in patient characteristics between the 2 groups. The median time to progression was 118 days for the clinical cohort and 284 days for the radiological cohort (p = 0.05). Median overall survival (OS) was 728 days for the clinical cohort, and was not reached for the radiological cohort (p = 0.02). DISCUSSION: In our review, most patients with HD after auto-HCT were diagnosed radiologically. Patients whose relapse was diagnosed clinically were likely to be detected earlier and have a shorter OS. Patients with aggressive disease may be detected when clinically relevant, regardless of scanning. Routine scanning may not be necessary in the majority of patients with HD following auto HCT. PMID- 29339628 TI - Downregulation of Long Non-Coding RNA Kcnq1ot1: An Important Mechanism of Arsenic Trioxide-Induced Long QT Syndrome. AB - BACKGROUND/AIMS: Arsenic trioxide (ATO) is a known anti-acute promyelocytic leukemia (APL) reagent, whose clinical applications are limited by its serious cardiac toxicity and fatal adverse effects, such as sudden cardiac death resulting from long QT syndrome (LQTS). The mechanisms of cardiac arrhythmia due to ATO exposure still need to be elucidated. Long non-coding RNAs (lncRNAs) are emerging as major regulators of various pathophysiological processes. This study aimed to explore the involvement of lncRNAs in ATO-induced LQTS in vivo and in vitro. METHODS: For in vivo experiments, mice were administered ATO through the tail vein. For in vitro experiments, ATO was added to the culture medium of primary cultured neonatal mouse cardiomyocytes. To evaluate the effect of lncRNA Kcnq1ot1, siRNA and lentivirus-shRNA were synthesized to knockdown lncRNA Kcnq1ot1. RESULTS: After ATO treatment, the Kcnq1ot1 and Kcnq1 expression levels were down regulated. lncRNA Kcnq1ot1 knockdown prolonged the action potential duration (APD) in vitro and exerted LQTS in vivo. Correspondingly, Kcnq1 expression was decreased after silencing lncRNA Kcnq1ot1. However, the knockdown of Kcnq1 exerted no effect on lncRNA Kcnq1ot1 expression. CONCLUSIONS: To our knowledge, this report is the first to demonstrate that lncRNA Kcnq1ot1 downregulation is responsible for QT interval prolongation induced by ATO at least partially by repressing Kcnq1 expression. lncRNA Kcnq1ot1 has important pathophysiological functions in the heart and could become a novel antiarrhythmic target. PMID- 29339631 TI - Abstracts of Award-Winning Posters, 22nd Annual Health Sciences Poster Conference, Faculty of Medicine, Health Sciences Centre, Kuwait University, Kuwait, March 7-9, 2017: Abstracts. PMID- 29339630 TI - Comparison of the Efficacy of Different Drugs on Non-Motor Symptoms of Parkinson's Disease: a Network Meta-Analysis. AB - BACKGROUND/AIMS: A network meta-analysis is used to compare the efficacy of ropinirole, rasagiline, rotigotine, entacapone, apomorphine, pramipexole, sumanirole, bromocriptine, piribedil and levodopa, with placebo as a control, for non-motor symptoms in Parkinson's disease (PD). METHODS: PubMed, Embase and the Cochrane Library were searched from their establishment dates up to January 2017 for randomized controlled trials (RCTs) investigating the efficacy of the above ten drugs on the non-motor symptoms of PD. A network meta-analysis combined the evidence from direct comparisons and indirect comparisons and evaluated the pooled weighted mean difference (WMD) values and surfaces under the cumulative ranking curves (SUCRA). The network meta-analysis included 21 RCTs. RESULTS: The analysis results indicated that, using the United Parkinson's Disease Rating Scale (UPDRS) III, the efficacies of placebo, ropinirole, rasagiline, rotigotine, entacapone, pramipexole, sumanirole and levodopa in treating PD were lower than that of apomorphine (WMD = -10.90, 95% CI = -16.12~-5.48; WMD = -11.85, 95% CI = 17.31~-6.16; WMD = -11.15, 95% CI = -16.64~-5.04; WMD = -11.70, 95% CI = -16.98~ 5.60; WMD = -11.04, 95% CI = -16.97~-5.34; WMD = -13.27, 95% CI = -19.22~-7.40; WMD = -10.25, 95% CI = -15.66~-4.32; and WMD = -11.60, 95% CI = -17.89~-5.57, respectively). Treatment with ropinirole, rasagiline, rotigotine, entacapone, pramipexole, sumanirole, bromocriptine, piribedil or levodopa, with placebo as a control, on PD exhibited no significant differences on PD symptoms when the UPDRS II was used for evaluation. Moreover, using the UPDRS III, the SUCRA values indicated that a pomorphine had the best efficacy on the non-motor symptoms of PD (99.0%). Using the UPDRS II, the SUCRA values for ropinirole, rasagiline, rotigotine, entacapone, pramipexole, sumanirole, bromocriptine, piribedil and levodopa treatments, with placebo as a control, indicated that bromocriptine showed the best efficacy on the non-motor symptoms of PD (75.6%). CONCLUSION: Among ropinirole, rasagiline, rotigotine, entacapone, apomorphine, pramipexole, sumanirole, bromocriptine, piribedil and levodopa, with placebo as a control, apomorphine may be the most efficacious drug for therapy in treating the non motor symptoms of PD. PMID- 29339632 TI - Identification of Rifampicin Resistance Mutations in Escherichia coli, Including an Unusual Deletion Mutation. AB - Rifampicin is an effective antibiotic against mycobacterial and other bacterial infections, but resistance readily emerges in laboratory and clinical settings. We screened Escherichia coli for rifampicin resistance and identified numerous mutations to the gene encoding the beta-chain of RNA polymerase (rpoB), including an unusual 9-nucleotide deletion mutation. Structural modeling of the deletion mutant indicates locations of potential steric clashes with rifampicin. Sequence conservation in the region near the deletion mutation suggests a similar mutation may also confer resistance during the treatment of tuberculosis. PMID- 29339634 TI - Abstracts of Theses Approved for MSc Degrees at the Faculty of Medicine, Health Sciences Center, Kuwait University, Kuwait: Abstracts. PMID- 29339633 TI - Multiple Sclerosis Mortality by Race/Ethnicity, Age, Sex, and Time Period in the United States, 1999-2015. AB - BACKGROUND: Multiple sclerosis (MS) carries high morbidity and shortens life span. While there is recent recognition of other US minority populations such as blacks and Hispanics being affected with MS, examination of MS-specific mortality trends by race/ethnicity has been lacking. OBJECTIVE: To investigate MS mortality rates and trends in the United States by sex, age, and race/ethnicity. METHODS: We used the Compressed Mortality data file for 1999-2015 in the Wide-ranging online Data for Epidemiological Research system developed by the Center for Disease Control and Prevention to calculate the age-adjusted (US 2000 standard population) and age-specific MS mortality rate (per 100,000) by race/ethnicity and sex over time. Five mutually exclusive racial/ethnic groups were included in the analysis: non-Hispanic (NH) white, NH black, NH Asian or Pacific Islander (API), NH American Indian or Alaska Native, and Hispanic. RESULTS: The average annual age-adjusted MS mortality rate was highest among NH whites (0.90 for males and 1.50 for females) immediately followed by NH blacks (0.75 for males and 1.42 for females), and lowest among APIs (0.05 for males and 0.12 for females). Statistically significant, increasing trend in age-adjusted MS mortality was observed during 1999-2015 among NH whites and NH blacks regardless of sex, more substantially in the latter. Age-specific MS mortality patterns showed NH blacks had the highest rate under age 55 and NH whites had the highest rate after that age point. For these 2 groups, MS mortality increased with age in both sexes and peaked at ages 55-64 for NH blacks and 65-74 for NH whites before declining substantially, while for Hispanic and API groups the risk plateaued after age 55. CONCLUSION: MS-specific mortality trends demonstrate distinctive differences by race/ethnicity and age. The observations that whites and females are more likely to die from MS is in line with the overall understanding that these groups are affected more by MS. However, the findings of blacks dying at an earlier age and having more substantially increasing mortality trends than whites suggest that MS burden weighs unequally by race. Further investigation into these trends may provide additional evidence into risk or protective factors within each group. PMID- 29339635 TI - Response to the Letter to the Editor Regarding "Micronutrients, Essential Fatty Acids and Bone Health in Phenylketonuria". PMID- 29339636 TI - Successful Treatment of Autoimmune Urticaria with Low-Dose Prednisolone Therapy Administered for a Few Months: A Case Series of 42 Patients. AB - BACKGROUND: Chronic spontaneous urticaria (CSU) is defined as symptoms of urticaria persisting for 6 weeks or more without obvious cause. Autologous serum skin test (ASST) positivity in patients with CSU is considered to be associated with autoimmune urticaria (AIU). METHODS: In this retrospective study we retrieved the medical records of 1,073 urticaria patients seen at the Department of Dermatology and Allergology of Szeged University between January 2005 and February 2014. Forty-two patients (36 female and 6 male) met the study criteria by having CSU and giving positive results in the ASST. Our aim was to assess the clinical efficacy and safety of low-dose oral prednisolone therapy administered to patients with antihistamine-refractory ASST-positive CSU for a few months. Patients were given an initial dose (40 mg/day) of prednisolone until the complete resolution of the symptoms, usually 7-10 days, and then the dose was gradually decreased, as in other autoimmune diseases. RESULTS: Prednisolone therapy lasted for an average of 3.6 months and a complete long-lasting response was achieved in 35 of 42 AIU patients (83.3%). The follow-up period was at least 36 months (3 years) for each AIU patient; the longest follow-up time was 139 months (11.5 years). None of the patients reported any considerable side effects. CONCLUSION: Based on our results, we suggest that the use of this treatment could be an alternative for the treatment of AIU. Our present results also highlight the need for other therapies in a small percentage of AIU patients. Our results suggest that AIU represents a transient autoimmunity that can be successfully treated with low-dose steroid therapy administered for a few months. PMID- 29339637 TI - Corneal Collagen Crosslinking Combined with Phototherapeutic Keratectomy and Photorefractive Keratectomy for Corneal Ectasia after Laser in situ Keratomileusis. AB - PURPOSE: The aim of this study was to analyze the effects of corneal crosslinking (CXL) combined with phototherapeutic keratectomy (PTK) and photorefractive keratectomy (PRK) in halting the progression and improving the visual function of corneal ectasia after laser in situ keratomileusis (LASIK). METHODS: PTK-PRK-CXL was performed on 14 eyes of 14 patients who developed corneal ectasia after LASIK. The visual acuity, spherical refraction and cylinder, corneal topography indices, thinnest corneal thickness (TCT), and endothelial cell count were evaluated at baseline and at 1, 3, 6, and 12 months postoperatively. RESULTS: The mean uncorrected visual acuity improved significantly from 0.64 +/- 0.36 logMAR preoperatively to 0.19 +/- 0.12 logMAR at 12 months of follow-up (p < 0.001), while the mean best corrected visual acuity improved from 0.21 +/- 0.14 logMAR at baseline to 0.04 +/- 0.10 logMAR at 12 months postoperatively (p < 0.001). A significant decrease was observed in Kmax and Kmean values from 52.51 +/- 6.74 and 43.55 +/- 3.37 D at baseline to 45.72 +/- 5.18 (p < 0.001) and 40.60 +/- 3.05 D (p < 0.001) at the 1-year follow-up. The mean TCT decreased significantly from 419.07 +/- 36.56 um before treatment to 320.93 +/- 39.78 um at 12 months of follow-up (p < 0.001), and there was no significant endothelial cell loss (p > 0.05) beyond 6 months after treatment. CONCLUSION: PTK-PRK-CXL is a promising procedure to halt the progression of post-LASIK keratectasia with significant visual quality improvement. PMID- 29339638 TI - A Nomogram to Characterize the Severity of Detrusor Overactivity during the Ice Water Test: Description of the Method and Proof of Concept. AB - AIMS: To develop a nomogram with severity categories for detrusor overactivity (DO). METHODS: By conducting ice water tests (IWT) in 55 patients with Parkinson's disease, we identified criteria to describe characteristics of the detrusor pressure curves: (1) a gradient of Deltapdet over Deltat at the maximum detrusor pressure and (2) the area under the curve. In a nomogram, 10 severity categories of DO were established: 1 and 2 were assigned to group A (mild), 3 and 4 to group B (moderate) and 5-10 to group C (severe). RESULTS: In the nomogram, negative IWT (20) appeared in category 1. Positive IWT (35) spread over the categories 1-8, 17 in group A, 11 in group B and 7 in categories 5-10. A relationship of incontinence episodes and nomogram category was observed. The nomogram category was reproducible in repeated IWT. Therapeutic interventions to treat DO lowered the nomogram category. CONCLUSION: From the relationship of detrusor pressure and time in the IWT, a nomogram with 10 severity categories of DO was developed. First observations show a relationship of nomogram category and the number of incontinence episodes, reproducibility in repeated tests and the representation of effects of therapeutic interventions to treat DO. PMID- 29339639 TI - MRI-Guided Interstitial Laser Ablation for Intracranial Lesions: A Large Single Institution Experience of 133 Cases. AB - BACKGROUND: Managing difficult-to-access lesions or surgically accessible lesions in fragile patients is a central problem in neurosurgery. MRI-guided interstitial laser ablation (ILA) is a minimally invasive option that may provide a safe means of treating these challenging patients. OBJECTIVE: We aim to (1) evaluate safety, efficacy, and preliminary outcomes within a diverse and large series of ILA treatments; and (2) report technical details and operative trends that proved useful over time in the authors' experience and that may be of use to neurosurgeons who perform ILA. METHODS: A retrospective evaluation of ILA patients was performed in terms of demographics, surgical techniques, and clinical outcomes. RESULTS: A total of 133 intracranial lesions in 120 patients were treated with ILA, including glioblastomas (GBM), other gliomas, metastases, epilepsy foci, and radionecrosis. The rate of complications/unexpected readmission was 6.0%, and the mortality rate was 2.2%. With high-grade tumors, tumor volumes >3 cm in diameter trended toward a higher rate of complication (p = 0.056). Median progression-free survival (PFS) and overall survival (OS) for recurrent GBM were 7.4 and 11.6 months, respectively. As a frontline treatment for newly diagnosed GBM, median PFS and OS were 5.9 and 11.4 months, respectively. For metastases, median PFS was not yet reached, and OS was 17.2 months. CONCLUSION: Our series suggests that ILA is a safe and efficacious treatment for a variety of intracranial pathologies, can be tailored to treat difficult-to-access lesions, and may offer a novel alternative to open craniotomy in properly selected patients. PMID- 29339640 TI - Application of Immunocytochemistry on Cell Block Sections for the Investigation of Thyroid Lesions. AB - OBJECTIVE: To investigate the potential of Classification and Regression Trees (CARTs) for the diagnosis of thyroid lesions based on cell block immunocytochemistry and cytological outcome. STUDY DESIGN: A total of 956 histologically confirmed cases (673 benign and 283 malignant) from patients with thyroid nodules were prepared via liquid-based cytology and evaluated; 4 additional slides were stained for cytokeratin 19 (CK-19), galectin 3 (Gal-3), Hector Battifora mesothelial cell 1 (HBME-1), and thyroglobulin. On the basis of immunocytochemistry and the cytological diagnosis, a CART algorithm was constructed and used for evaluation. RESULTS: The major important factors contributing to the diagnostic CART model were: cytological outcome, CK-19, Gal 3, and HBME-1. The sensitivity and specificity of the cytological diagnosis were 96.27% and 88.26%, respectively (cut-off: category 3 of The Bethesda System [TBS 3]). The introduction of immunocytochemistry and the CART model increased the sensitivity and specificity to 98.88% and 99.11%, respectively. CK-19 presented the best performance for discriminating papillary thyroid carcinomas, followed by HBME-1 and Gal-3. In the TBS-2 cases, CK-19 and, subsequently, Gal-3 were important immunocytochemistry markers. Ultimately, CK-19 and HBME-1 on TBS-5 or TBS-6 cases demonstrated the best results. CONCLUSIONS: The hierarchical structure of the CART model provides a diagnostic algorithm linked with the risk of malignancy at every step of the procedure. It also provides guidance on the use of ancillary examinations as it goes by simple, human understandable rules. PMID- 29339641 TI - Longitudinal Assessment of Abdominal Circumference versus Estimated Fetal Weight in the Detection of Late Fetal Growth Restriction. AB - OBJECTIVES: To perform a longitudinal assessment comparison between estimated fetal weight (EFW) and abdominal circumference (AC) in the prediction of late fetal growth restriction (FGR) as opposed to small for gestational age (SGA). PATIENTS AND METHODS: A cohort of unselected singleton pregnancies scanned at 32+/-2 and 37+/-1 weeks was created. Longitudinal growth assessment by calculating the conditional AC and conditional EFW was performed, and both parameters were compared for their prediction capacity for late FGR and SGA. Conditional standards set an expected size (EFW or AC) given a first measurement performed earlier. A declining growth was defined as a conditional growth of <10th centile. RESULTS: A total of 938 pregnancies were included. As expected, declining growth between 32+/-2 and 37+/-1 weeks was associated with late FGR and SGA, but the predictive capacity of both conditional AC and conditional EFW was comparably poor, with detection rates of 28% at a 10% rate of false positives for late FGR. CONCLUSIONS: Longitudinal assessment of fetal growth during the third trimester has a low predictive capacity for late FGR, with no differences between conditional AC and conditional EFW. PMID- 29339642 TI - Significance of Salvage Autologous Stem Cell Transplantation for Relapsed Multiple Myeloma: A Nationwide Retrospective Study in Japan. AB - Autologous stem cell transplantation (ASCT) has been employed for patients with relapsed multiple myeloma (MM) after up-front ASCT. The present retrospective study aimed to examine the survival benefit from salvage ASCT. Among 446 patients with relapsed MM after up-front single ASCT, 70 patients received salvage ASCT, the employment of which reduced the risk of mortality after relapse (p = 0.041). Using the parameters before initial ASCT, the advantage of salvage ASCT compared to standard therapy was confirmed in the subgroup with an international staging system stage of I or II (p = 0.040), good performance status (PS; p = 0.043), or no/mild renal comorbidity (p = 0.029). The advantage of salvage ASCT was also confirmed in the subgroup excluding those with early relapse within 7 months after initial ASCT (p = 0.026). Among patients who received salvage ASCT, a favorable prognosis is apparent for those with a time to relapse after initial ASCT of longer than 24 months. The overall survival after salvage ASCT was favorable excluding patients with the following factors: early relapse, poor PS, moderate/severe renal comorbidity, and progressive disease (p < 0.001). In conclusion, our results reinforced the evidence for encouraging salvage ASCT for eligible patients. PMID- 29339643 TI - Effect of Remote Ischemic Preconditioning on Systemic Toxicity and Ototoxicity Induced by Cisplatin in Rats: Role of TNF-alpha and Nitric Oxide. AB - BACKGROUND/AIMS: Cisplatin is a chemotherapeutic agent. The use of remote ischemic preconditioning (RIPC) was proposed after the observation that ischemic preconditioning of a cardiac vascular area could protect another completely distinctly. METHODS: This is an experimental study. Male Wistar rats were anesthetized, and they underwent a hearing evaluation via measurement of the brainstem auditory evoked potential (BSAEP). Then, cisplatin was administered intraperitoneally (IP) at a dose of 8 mg/kg/day for 4 consecutive days to group 1, whereas saline solution was administered IP to group 2. In groups 3 and 4, ischemia of the right hind paw was performed for 10 min, followed by reperfusion for 30 min, after which cisplatin or saline was administered IP to group 3 or group 4, respectively. Afterwards, all animals were evaluated via the BSAEP. The right cochlea was dissected for immunohistochemistry. RESULTS: RIPC lowered the increase in BSAEP of the animals treated with cisplatin (p = 0.0146). Weight loss decreased in the animals subjected to RIPC (p < 0.005). In group 3, RIPC reversed immunostaining for tumor necrosis factor-alpha and inducible nitric oxide synthase in the stria vascularis injured by cisplatin (p < 0.05). CONCLUSION: RIPC protects against systemic toxicity and ototoxicity induced by cisplatin in rats. PMID- 29339644 TI - Changes in Central Macular Thickness and Retinal Nerve Fiber Layer Thickness in Eyes with Vogt-Koyanagi-Harada Disease: A 2-Year Follow-Up Study. AB - PURPOSE: To investigate the central macular thickness (CMT) and retinal nerve fiber layer (RNFL) thickness in eyes with Vogt-Koyanagi-Harada (VKH) disease associated with optic disc swelling and serous retinal detachment through a 24 month follow-up period. METHODS: We prospectively investigated 28 eyes of 14 treatment-naive patients with acute VKH disease associated with optic disc swelling and serous retinal detachment and 30 eyes of 15 normal individuals to compare changes in the CMT and average RNFL thickness. RESULTS: The CMT was significantly lower in the eyes of the VKH group at 12 and 24 months. The RNFL thickness was significantly higher in the eyes of the VKH group at the initial visit and at the 6- and 12-month follow-up visits, but no significant difference was found between the VKH group and control group at the 24-month follow-up visit. CONCLUSION: Significant changes in the CMT and RNFL thickness in the eyes with VKH disease were observed during the 24-month follow-up period. When diagnosing or monitoring diseases including glaucoma and neuro-ophthalmic diseases that affect the retinal thickness in patients with VKH disease, we recommend considering longitudinal changes in the retinal thickness. PMID- 29339645 TI - Multi Matrix System Mesalazine Plus Rectal Mesalazine in the Treatment of Mild to Moderately Active Ulcerative Proctitis. AB - BACKGROUND: Mesalazine 1 g suppository/die is used for mild to moderately active ulcerative proctitis (UP). Whether addiction of Multi Matrix System (MMX) mesalazine increases the remission rate of UP and prevents proximal extension of disease is unknown. METHODS: This is a retrospective study on 116 outpatients with UP who had been treated with one of the following regimens: (1) MMX mesalazine 1.2 g/die plus mesalazine suppositories for 8 +/- 2 weeks and, subsequently, MMX mesalazine 1.2 g/die plus rectal mesalazine 1 g every other day for at least 6 months; (2) mesalazine 1 g suppositories/die alone for 8 +/- 2 weeks and, subsequently, rectal mesalazine 1 g every other day for 6 more months. Patients were evaluated clinically at 2 months (+/-2 weeks) and endoscopically at 6 months (+/-2 weeks). For categorical variables, Pearson chi-square test was used. RESULTS: A total of 46 of 55 patients (84%) on combined therapy and 49 of 61 patients (80%) on rectal mesalazine reached clinical remission (p > 0.05; OR 0.79, 95% CI 0.30-2.07). At 6 months follow-up, proximal extension of disease was observed in 7 of 55 (14%) patients on combined therapy and in 18 of 61 (29%) patients on rectal mesalazine alone (p < 0.05; OR 2.87, 95% CI 1.09-7.53). CONCLUSIONS: Oral MMX mesalazine plus rectal mesalazine combined treatment is associated with prevention of proximal extension of the disease compared with rectal mesalazine alone. PMID- 29339646 TI - Automated Screening for Diabetic Retinopathy - A Systematic Review. AB - PURPOSE: Worldwide ophthalmologists are challenged by the rapid rise in the prevalence of diabetes. Diabetic retinopathy (DR) is the most common complication in diabetes, and possible consequences range from mild visual impairment to blindness. Repetitive screening for DR is cost-effective, but it is also a costly and strenuous affair. Several studies have examined the application of automated image analysis to solve this problem. Large populations are needed to assess the efficacy of such programs, and a standardized and rigorous methodology is important to give an indication of system performance in actual clinical settings. METHODS: In a systematic review, we aimed to identify studies with methodology and design that are similar or replicate actual screening scenarios. A total of 1,231 publications were identified through PubMed, Cochrane Library, and Embase searches. Three manual search strategies were carried out to identify publications missed in the primary search. Four levels of screening identified 7 studies applicable for inclusion. RESULTS: Seven studies were included. The detection of DR had high sensitivities (87.0-95.2%) but lower specificities (49.6 68.8%). False-negative results were related to mild DR with a low risk of progression within 1 year. Several studies reported missed cases of diabetic macular edema. A meta-analysis was not conducted as studies were not suitable for direct comparison or statistical analysis. CONCLUSION: The study demonstrates that despite limited specificity, automated retinal image analysis may potentially be valuable in different DR screening scenarios with a relatively high sensitivity and a substantial workload reduction. PMID- 29339647 TI - Proceedings of the 11th Congress of the International Society of Nutrigenetics and Nutrigenomics (ISNN 2017). AB - The International Society of Nutrigenetics and Nutrigenomics (ISNN) held its 11th annual Congress in Los Angeles, California, between September 16 and 19, 2017. In addition to 2 keynote lectures, 4 plenary sessions included presentations by internationally renowned speakers on cutting-edge areas of research and new discoveries in genetics/genomics, the microbiome, and nutrition. Scientific topics included multi-omics approaches; diet and the microbiome; cancer, longevity, and metabolism; moving the field forward; and translational/educational aspects and the future of medicine. There was also an accepted oral abstracts session designed specifically to provide young investigators and trainees with the opportunity to present their work, as well as a session focused on industry-academic partnerships, which included a roundtable discussion afterwards. Overall, the 11th ISNN Congress was an exciting and intellectually stimulating meeting focused on understanding the impact of biological interactions between genes and nutrients on health and disease. These efforts continued the decade-long tradition of the annual ISNN Congress to provide an interdisciplinary platform for scientists from various disciplines to discuss research ideas and advance the fields of nutrigenetics and nutrigenomics. PMID- 29339648 TI - Caries-Preventive Effect of NaF, NaF plus TCP, NaF plus CPP-ACP, and SDF Varnishes on Sound Dentin and Artificial Dentin Caries in vitro. AB - The aim of this study was to compare the caries-preventive effect of different fluoride varnishes on sound dentin as well as on artificial dentin caries-like lesions. Bovine dentin specimens (n = 220) with one sound surface (ST) and one artificial caries lesion (DT) were prepared and randomly allocated to 11 groups. The interventions before pH cycling were as follows: application of a varnish containing NaF (22,600 ppm F-; Duraphat [NaF0/NaF1]), NaF plus tricalcium phosphate (22,600 ppm F-; Clinpro White Varnish Mint [TCP0/TCP1]), NaF plus casein phosphopeptide-stabilized amorphous calcium phosphate complexes (CPP-ACP; 22,600 ppm F-; MI Varnish [CPP0/CPP1]), or silver diamine fluoride (SDF; 35,400 ppm F-; Cariestop 30% [SDF0/SDF1]) and no intervention (NNB/N0/N1). During pH cycling (14 days, 6 * 120 min demineralization/day) half of the specimens in each group were brushed (10 s; 2 times/day) with either fluoride-free ("0"; e.g., TCP0) or 1,100 ppm F- ("1"; e.g., TCP1) dentifrice slurry. In another subgroup, the specimens were pH cycled but not brushed (NNB). Differences in integrated mineral loss (DeltaDeltaZ), lesion depth (DeltaLD), and colorimetric values (DeltaDeltaE) were calculated between the values after initial demineralization and those after pH cycling, using transversal microradiography and photographic images. After pH cycling, no discoloration could be observed. Furthermore, NNB, N0, and N1 showed significantly increased DeltaZDT/LDDT and DeltaZST/LDST values, indicating further demineralization. In contrast, CPP0, CPP1, SDF0, and SDF1 showed significantly decreased DeltaZDT/LDDT values, indicating remineralization (p <= 0.004; paired t test). CPP0, CPP1, SDF0, and SDF1 showed significantly higher changes in DeltaDeltaZDT/DeltaLDDT and DeltaDeltaZST/DeltaLDST than NNB, N0, and N1 (p < 0.001; Bonferroni post hoc test). In conclusion, under the conditions chosen, all fluoride varnishes prevented further demineralization. However, only NaF plus CPP-ACP and SDF could remineralize artificial dentin caries-like lesions under net-demineralizing conditions, thereby indicating that NaF plus CPP-ACP and SDF may be helpful to high-caries-risk patients. PMID- 29339649 TI - Cardiovascular Risk Factors and Insulin Resistance after Two Hypocaloric Diets with Different Fat Distribution in Obese Subjects: Effect of the rs10767664 Gene Variant in Brain-Derived Neurotrophic Factor. AB - BACKGROUND: The role of brain-derived neurotrophic factor (BDNF) variants on change in body weight and cardiovascular risk factors after weight loss remains unclear in obese patients. OBJECTIVE: Our aim was to analyze the effects of the rs10767664 BDNF gene polymorphism on body weight, cardiovascular risk factors, and serum adipokine levels after a high monounsaturated fatty acids (MUFAs) hypocaloric diet (diet M) versus a high polyunsaturated fatty acids (PUFAs) hypocaloric diet (diet P). METHODS: A Caucasian population of 361 obese patients was enrolled. Subjects who met the inclusion criteria were randomly allocated to one of two diets for a period of 3 months. RESULTS: Two hundred and sixteen subjects (59.8%) had the genotype AA (wild-type group), and 145 (40.2%) patients had the genotypes AT (122 patients, 33.8%) or TT (23 patients, 6.4%) (mutant-type group). After weight loss with diet P and diet M and in both genotype groups, body mass index, weight, fat mass, waist circumference, systolic blood pressure, serum leptin levels, low-density lipoprotein cholesterol, and total cholesterol decreased in a significant way. Secondary to weight loss with diet M and only in the wild-type group, insulin levels (-2.1 +/- 2.0 vs. -0.7 +/- 2.9 IU/L, p < 0.05) and homeostatic model assessment of insulin resistance (-0.7 +/- 0.9 vs. 0.3 +/- 1.0 U, p < 0.05) decreased. CONCLUSION: Our data show that the rs10767664 variant of the BDNF gene modifies insulin resistance and insulin levels after weight loss with a hypocaloric diet enriched with MUFAs. PMID- 29339650 TI - Oral Immunotherapy in Japanese Children with Anaphylactic Peanut Allergy. AB - BACKGROUND: Reports on oral immunotherapy (OIT) for anaphylactic food allergy are lacking. We investigated the efficacy and safety of peanut OIT for anaphylactic patients. METHODS: We enrolled 22 peanut anaphylactic patients who underwent OIT between 2011 and 2013, all of whom demonstrated anaphylaxis during a baseline double-blind, placebo-controlled food challenge. After starting in-hospital OIT, participants gradually increased ingestion to 795 mg of peanut protein per day at home and then took a maintenance dose (795 mg) daily. After 3 asymptomatic months, participants underwent an oral food challenge (OFC) of 795 mg after 2 weeks of peanut avoidance to confirm sustained unresponsiveness. The historical control group consisted of 11 patients with anaphylaxis by OFC and underwent the second OFC after 2 years. RESULTS: All patients (22/22) achieved desensitization by 8 months after starting OIT and completed the protocol within 2 years. Two years later, 15/22 patients (68.1%) in the OIT group achieved sustained unresponsiveness, whereas only 2 (18.1%) in the control group passed the second OFC. After 2 years, the median peanut-specific IgE had significantly decreased (from 38.5 to 12.4 kUA/L) in the OIT group, but not in the control group. Median peanut- and Ara h 2-specific IgG4 in the OIT group had significantly increased from baseline after 1 month. The adverse reaction rate per ingestion was 43% in hospital and 5% at home. Three patients received adrenaline at the hospital and 2 at home. CONCLUSIONS: These data suggest that for patients with peanut anaphylaxis, OIT can increase the threshold and support achieving sustained unresponsiveness with relative safety. PMID- 29339651 TI - Albumin-Indocyanine Green Evaluation Grading System Predicts Post-Hepatectomy Liver Failure for Biliary Tract Cancer. AB - BACKGROUND: In biliary tract cancer treatment, a precise preoperative evaluation of the patient's liver function is essential to avoid post-hepatectomy liver failure (PHLF) and mortality. The present study aimed to evaluate the role of the Albumin-Indocyanine Green Evaluation (ALICE) grading system in predicting PHLF in biliary tract cancer patients. METHODS: Data from 166 patients who underwent hepatectomy for biliary tract cancer between 2000 and 2016 were retrospectively analyzed. Univariate and multivariate analyses were performed to identify the risk factors for PHLF. RESULTS: Among the 166 patients, major hepatectomy was performed in 101 (61%) and bile duct resection was performed in 99 (60%) patients. Thirteen (8%) patients developed PHLF. Furthermore, PHLF, major complications, and mortality were significantly higher in patients with high ALICE grades (>=2b) than in those with low ALICE grades (<2b) (PHLF, 42 vs. 18%, p = 0.002; major complications, 35 vs. 19%, p = 0.036; mortality, 9.3 vs. 0%, p = 0.001). In multivariate analysis, high ALICE grade (p = 0.016) and blood loss >=1,500 mL (p = 0.009) were identified as independent risk factors for PHLF. CONCLUSIONS: The ALICE grading system effectively stratified the risks for PHLF for biliary tract cancer. PMID- 29339652 TI - Smoking and Promoter-Specific Deoxyribonucleic Acid Methylation of the Atrial Natriuretic Peptide Gene: Methylation of Smokers and Non-Smokers Differs Significantly during Withdrawal. AB - BACKGROUND: Atrial natriuretic peptide (ANP) is well known in psychiatric disorders to modulate hypothalamic-pituitary-adrenal axis activity. Disturbances of ANP have been described in early abstinent alcohol-dependent patients. This is the first longitudinal investigation on cytosine-phosphatidyl-guanine (CpG) island promoter methylation of the ANP gene in the blood of tobacco-dependent patients. METHODS: In a longitudinal approach, we investigated whether changes in ANP serum levels correlated to CpG methylation of the respective gene promoters on days 1, 7, and 14 of tobacco withdrawal. RESULTS AND CONCLUSION: Compared to non-smokers, promoter-related deoxyribonucleic acid methylation of the ANP promoter was significantly elevated on days 7 and 14 of withdrawal in tobacco dependent patients. Baseline methylation status of the ANP promoter was not significantly different from controls, arguing for an impaired regulation during withdrawal. PMID- 29339653 TI - Adherence to the European Association of Urology Guidelines: A National Survey among Italian Urologists. AB - OBJECTIVE: The study aimed to explore adherence to the European Urological Association (EAU) Guidelines (GLs) grade A recommendation among Italian urologists. MATERIALS AND METHODS: A 13-item multiple-choice questionnaire covering oncological and non-oncological urological diseases was e-mailed to all Italian Urologist Society (Societa Italiana di Urologia or SIU) members. We asked members to provide an explanation for their answer choice where needed. The quantitative data were tested using the Pearson's chi-square test. For all statistical comparisons, significance was considered as p < 0.05. RESULTS: Of the 2011 invited SIU members, 210 (10.4%) completed the survey. The sample was composed of 22 (10.5%) Academic Urologists (AcUs), 110 (52.4%) Attending Urologists (AtUs), 32 (15.2%) Private Practice Urologists (PPUs), and 41 (19.5%) Residents in Urology (RUs). The mean adherence to the EAU Oncologic GLs ranged from 54.5 to 97.1%, while the adherence to the non-oncologic GLs ranged from 45 to 87.6%. We found that adherence differed across the working categories assessed. CONCLUSION: Our survey showed that professional role, updates, and local facilities seem to be the drivers that influence the non-adherence to the GLs. Urologists who work in university hospital would be more inclined to adopt the GLs compared to those who practice in non-academic centers. PMID- 29339654 TI - Comparative Burden of Subclinical Tremor in a Cohort of Normal Individuals Stratified by Familial Risk for Essential Tremor. AB - BACKGROUND: The burden of mild (i.e., subclinical) tremor within essential tremor (ET) families is not fully understood. We assessed the burden of mild tremor in a cohort of 287 adults, none of whom reported tremor or were diagnosed with ET. METHODS: We recruited adults in 2 groups based on the familial risk for ET: 244 high-risk individuals (i.e., reporting one or more first-degree relative with ET) and 43 low-risk individuals (i.e., reporting no relatives with ET). Tremor was objectively assessed on 4 hand-drawn spirals (total spiral score = 0-12). Mild tremor was defined using 3 different cut points. RESULTS: The prevalence rates of mild tremor among high-risk individuals ranged from 41.4 to 98.4% and were highly dependent on the cut point. Above a certain threshold (i.e., a total spiral score >=5), 1-in-5 (i.e., 19.7%) high-risk individuals exhibited mild tremor, whereas no low-risk individuals did. High-risk individuals were 3.09-4.50 times more likely than low-risk individuals to exhibit mild tremor. CONCLUSION: The burden of ET extends beyond the boundaries of the clinically defined disease, and partially expressed forms of ET are abundant in ET families. This fact greatly complicates gene-finding studies and epidemiological studies whose goal is to detect disease-linked associations. PMID- 29339655 TI - The Impact of Arterial Clamping Technique in Robot-Assisted Partial Nephrectomy on Renal Function and Surgical Outcomes: Six-Year Experience at Siriraj Hospital, Thailand. AB - INTRODUCTION: Robot-assisted partial nephrectomy (RAPN) with different arterial clamping techniques has increasingly been performed to avoid ischemic injury to nephron. However, postoperative renal function remains controversial. We determine the impact of each renal arterial clamping on surgical and renal outcomes after RAPN. MATERIALS AND METHODS: Patients who underwent RAPN at Siriraj Hospital from 2010 to 2016 were retrospectively reviewed and stratified into 3 cohorts: main-clamp (MAC), selective-clamp, and off-clamp. RESULTS: Main, selective, and off-clamping were performed in 27, 38, and 12, respectively. Median tumor size and Radius, Exophytic or endophytic, Nearness to collecting system or sinus, Anterior or posterior, and Location relative to polar lines (RENAL) score were 3 cm and 7, respectively. Longer operative time was observed in MAC (p = 0.002) although estimated blood loss, transfusion rate, and complication were comparable. Warm ischemia time was not different between cohorts. However, number of patients with prolonged ischemia time in MAC were greater (p <= 0.01). All margins were negative. Median postoperative and latest glomerular filtration rate reduction were 3.8 and 5.3 mL/min/1.73 m2, respectively without significant difference between cohorts. On multivariable analysis, hypertension independently associated with reduced renal function preserved (p = 0.03). Median follow-up was 18 months. CONCLUSIONS: Our study is the first to report surgical and renal functional outcomes after RAPN in Southeast-Asian population. Based on our experience, clamping techniques does not impact on renal functions and complication rate was low even in small-volume center. PMID- 29339656 TI - New: The European Addiction Research Award. PMID- 29339657 TI - The Practical Management of Chronic Pancreatitis: A Multidisciplinary Symposium Held at the Annual Meeting of the Pancreatic Society of Great Britain and Ireland, Manchester 2016. AB - AIM: This study is about a questionnaire survey of delegates attending the chronic pancreatitis symposium at the 2016 meeting of the Pancreatic Society of Great Britain and Ireland and seeks a multidisciplinary "snapshot" overview of practice. METHODS: A questionnaire was developed with multidisciplinary input. Questions on access to specialist care, methods of diagnosis and treatment including specific scenarios were incorporated. Eighty-three (66%) of 125 delegates effectively participated in this survey. RESULTS: Twenty-four (29%) had neither a chronic pancreatitis MDT in their hospital nor a chronic pancreatitis referral MDT. Most frequently utilised diagnostic modalities were CT, MR and EUS with no respondents utilising duodenal intubation tests. Initial treatment was provided through non-opiate analgesia by 69 (93%), through the use of opiates by 56 (76%) and through the use of co-analgesics by 49 (66%). Fifty two (68%) routinely referred patients with alcohol-related disease for counselling. Preferred treatment for large duct disease without mass was endoscopic therapy. In older patients with a mass, pancreaticoduodenectomy was preferred. CONCLUSION: This is a small study likely to be skewed by sampling bias but is thought to be the first multidisciplinary survey of the management of chronic pancreatitis in the United Kingdom and Ireland. The results show a need for comprehensive access to specialist pancreatitis MDT care and there remains substantial variation in management. PMID- 29339658 TI - Survey Results of the Expert Meeting on Laparoscopic Surgery for Gallbladder Cancer and a Review of Relevant Literature. AB - BACKGROUND: Favorable outcomes of laparoscopic surgery for gallbladder cancer (GBC) have been reported; yet consensus on the indications and surgical techniques for laparoscopic surgery for GBC is lacking. OBJECTIVE: To evaluate the current status of laparoscopic surgery for GBC by analyzing the results of a survey of experts and by reviewing the relevant published literature. METHODS: Before an expert meeting was held on September 10, 2016 in Seoul, Korea, an international survey was undertaken of expert surgeons in the field of GBC surgery. RESULTS: The majority of surgeons who responded agreed that laparoscopic surgery has an acceptable role for suspicious or early GBC, and that laparoscopic extended cholecystectomy has a value comparable to that of open surgery in selected patients with GBC. However, the selection criteria for laparoscopic surgery for overt GBC and the details of the surgical techniques varied among surgeons. CONCLUSIONS: This survey and literature review revealed that laparoscopic surgery for GBC is performed in highly selected cases. However, the favorable outcomes in the published reports and the positive view of experienced surgeons for this operative procedure suggest a high likelihood that laparoscopic surgery will be more frequently performed for GBC in the future. PMID- 29339659 TI - FcgammaR/ROS/CK2alpha Is the Key Inducer of NF-kappaB Activation in a Murine Model of Asthma. AB - BACKGROUND: The transcription factor nuclear factor (NF)-kappaB plays a pivotal role in the development of allergic airway inflammation. However, the mechanism of NF-kappaB activation in asthma remains to be elucidated. METHODS: CK2alpha activation was assessed by CK2alpha phosphorylation and protein expression. Airway levels of histamine and cytokines were determined by ELISA. We used 2 (active and passive) forms of allergic pulmonary inflammation models. In the active form, the animals were immunized with ovalbumin (OVA) intraperitoneally, followed by an airway challenge with OVA. In the passive form, the animals were passively sensitized by intratracheal instillation with either anti-OVA IgE or anti-OVA IgG, followed by an airway challenge with OVA. The role of NADPH oxidase (NOX) in CK2alpha activation was assessed using NOX2-/- and NOX4-/- mice because NOX2 and NOX4 contribute to many inflammatory diseases. RESULTS: The second airway challenge increased CK2alpha phosphorylation and protein expression in airway epithelial cells as well as nuclear translocation of the p50 and p65 subunits of NF-kappaB, all of which were inhibited by the CK2alpha inhibitor 4,5,6,7-tetrabromobenzotriazole and the antioxidant N-acetyl-L-cysteine. CK2alpha phosphorylation and protein expression were significantly impaired in NOX2-/-, but not in NOX4-/-, mice. Induction of passive sensitization using anti-OVA IgE activated neither CK2alpha nor NF-kappaB. In contrast, induction of passive sensitization using anti-OVA IgG activated both CK2alpha and NF-kappaB. CONCLUSIONS: These data suggest that Fcgamma receptor/reactive oxygen species/CK2alpha is a key inducer of NF-kappaB activation in airway epithelial cells in a murine model of asthma. PMID- 29339660 TI - Laparoscopic Surgery for Gallbladder Cancer: An Expert Consensus Statement. AB - BACKGROUND: Despite the increasing number of reports on the favorable outcomes of laparoscopic surgery for gallbladder cancer (GBC), there is no consensus regarding this surgical procedure. OBJECTIVE: The study aimed to develop a consensus statement on the application of laparoscopic surgery for GBC based on expert opinions. METHODS: A consensus meeting among experts was held on September 10, 2016, in Seoul, Korea. RESULTS: Early concerns regarding port site/peritoneal metastasis after laparoscopic surgery have been abated by improved preoperative recognition of GBC and careful manipulation to avoid bile spillage. There is no evidence that laparoscopic surgery is associated with decreased survival compared with open surgery in patients with early-stage GBC if definitive resection during/after laparoscopic cholecystectomy is performed. Although experience with laparoscopic extended cholecystectomy for GBC has been limited to a few experts, the postoperative and survival outcomes were similar between laparoscopic and open surgeries. Laparoscopic reoperation for postoperatively diagnosed GBC is technically challenging, but its feasibility has been demonstrated by a few experts. CONCLUSIONS: Laparoscopic surgery for GBC is still in the early phase of the adoption curve, and more evidence is required to assess this procedure. PMID- 29339661 TI - A Novel FOXL2 Mutation Implying Blepharophimosis-Ptosis-Epicanthus Inversus Syndrome Type I. AB - BACKGROUND/AIMS: Blepharophimosis-ptosis-epicanthus inversus syndrome (BPES) is a rare autosomal dominant disease caused by FOXL2 gene mutations, and it is clinically characterized by an eyelid malformation associated (type I) or not (type II) with premature ovarian failure (POF). Functional study of novel mutations is especially critical for female patients, as it may allow the prediction of infertility and early planning of an appropriate therapy. METHODS: A clinical and molecular genetic investigation was performed in all members of a Chinese family with BPES. Genomic DNA was extracted, and the FOXL2 coding region was sequenced. Subcellular localization was performed by confocal microscopy. Transactivation studies were performed by real-time PCR, dual luciferase reporter assays and electrophoretic mobility shift assays. RESULTS: A novel deletion mutation (C.634_641 del, CCCATGC) between the forkhead domain and the polyalanine domain was found, resulting in a frameshift mutation and a truncated protein. Functional studies showed a strong cytoplasmic mislocalization and abnormal transactivation activity, implying a type I kind mutation with a large chance of infertility. CONCLUSION: This study identifies that this mutation indicates the probability of developing into POF and shows the importance and necessity of early recognition of BPES type through mutation testing for female patients. Prompt personalized therapy and follow-up is of great clinical significance for female patients carrying this kind of mutation. PMID- 29339662 TI - Cytogenetic Characterization of Eight Odonata Species Originating from the Curonian Spit (the Baltic Sea, Russia) Using C-Banding and FISH with 18S rDNA and Telomeric (TTAGG)n Probes. AB - We studied the karyotypes of 8 dragonfly species originating from the Curonian Spit (the Baltic Sea, Russia) using C-banding and FISH with 18S rDNA and "insect" telomeric (TTAGG)n probes. Our results show that Leucorrhinia rubicunda, Libellula depressa, L. quadrimaculata, Orthetrum cancellatum, Sympetrum danae, and S. vulgatum from the family Libellulidae, as well as Cordulia aenea and Epitheca bimaculata from the family Corduliidae share 2n = 25 (24 + X) in males, with a minute pair of m-chromosomes being present in every karyotype except for that of C. aenea. Major rDNA clusters are located on one of the large pairs of autosomes in all the species. No hybridization signals were obtained by FISH with the (TTAGG)n probe in the examined species with the only exception of S. vulgatum. In this species, clear signals were detected at the ends of almost all chromosomes. This finding raises the possibility that in Odonata the canonical "insect" (TTAGG)n telomeric repeat is in fact present but in very low copy number and is consequently difficult to detect by in situ hybridization. We conclude that more work needs to be done to answer questions about the organization of telomeres in this very ancient and thus phylogenetically important insect order. PMID- 29339663 TI - Evaluation of Magnetic Resonance Imaging/Ultrasound-Fusion Biopsy in Patients with Low-Risk Prostate Cancer Under Active Surveillance Undergoing Surveillance Biopsy. AB - INTRODUCTION: Targeted biopsy of tumour-suspicious lesions detected in multiparametric magnetic resonance imaging (mpMRI) plays an increasing role in the active surveillance (AS) of patients with low-risk prostate cancer (PCa). The aim of this study was to compare MRI/ultrasound-fusion biopsy (fusPbx) with systematic biopsy (sysPbx) in patients undergoing biopsy for AS. METHODS: Patients undergoing mpMRI and transperineal fusPbx combined with transrectal sysPbx (comPbx) as surveillance biopsy were investigated. The detection of Gleason score upgrading and reclassification according to Prostate Cancer Research International Active Surveillance criteria were evaluated. RESULTS: Eighty-three patients were enrolled. PCa upgrading was detected in 39% by fusPbx and in 37% by sysPbx (p = 1.0). The percentage of patients who were reclassified in fusPbx and sysPbx (p = 0.45) were 64 and 59% respectively. ComPbx detected more frequently tumour upgrading than fusPbx (71 vs. 64%, p = 0.016) and sysPbx (71 vs. 59%, p < 0.001) and more patients had to be reclassified after comPbx than after fusPbx or sysPbx alone. CONCLUSIONS: The combination of fusPbx and sysPbx outperforms both modalities alone with regard to the detection of upgrading and reclassification in patients under AS. Because a high missing rate of significant PCa still exists in both biopsy modalities, a combination of fusPbx and sysPbx should be recommended in these patients. PMID- 29339664 TI - Cenesthopathy and Subjective Cognitive Complaints: An Exploratory Study in Schizophrenia. AB - BACKGROUND/AIMS: Cenesthopathy is mainly associated with schizophrenia; however, its neurobiological basis is nowadays unclear. The general objective was to explore clinical correlates of cenesthopathy and subjective cognitive complaints in schizophrenia. METHODS: Participants (n = 30) meeting DSM-IV criteria for psychotic disorder were recruited from a psychiatry unit and assessed with: Association for Methodology and Documentation in Psychiatry (AMDP) system, Positive and Negative Syndrome Scale, Frankfurt Complaint Questionnaire (FCQ), and the Bonn Scale for the Assessment of Basic Symptoms (BSABS). For quantitative variables, means and Spearman correlation coefficients were calculated. Linear regression following backward method and principal component analysis with varimax rotation were used. RESULTS: 83.3% of subjects (73.3% male, mean age, 31.5 years) presented any type of cenesthopathy; all types of cenesthetic basic symptoms were found. Cenesthetic basic symptoms significantly correlated with the AMDP category "fear and anancasm," FCQ total score, and BSABS cognitive thought disturbances. In the regression analysis only 1 predictor, cognitive thought disturbances, entered the model. In the principal component analysis, a main component which accounted for 22.69% of the variance was found. CONCLUSIONS: Cenesthopathy, as assessed with the Bonn Scale (BSABS), is mainly associated with cog-nitive abnormalities including disturbances of thought initiative and mental intentionality, of receptive speech, and subjective retardation or pressure of thoughts. PMID- 29339665 TI - Novel Translational Research Methodology and the Prospect to a Better Understanding of Neurodegenerative Disease. PMID- 29339666 TI - Preventive Cold Acclimation Augments the Reparative Function of Endothelial Progenitor Cells in Mice. AB - BACKGROUND/AIMS: Chronic cold exposure may increase energy expenditure and contribute to counteracting obesity, an important risk factor for cerebrocardiovascular diseases. This study sought to evaluate whether preventive cold acclimation before ischemia onset might be a promising option for preventing cerebral ischemic injury. METHODS: After a 14-day cold acclimation period, young and aged mice were subjected to permanent cerebral ischemia, and histological analyses and behavioral tests were performed. Mouse endothelial progenitor cells (EPCs) were isolated, their function and number were determined, and the effects of EPC transplantation on cerebral ischemic injury were investigated. RESULTS: Preventive cold acclimation before ischemia onset increased EPC function, promoted ischemic brain angiogenesis, protected against cerebral ischemic injury, and improved long-term stroke outcomes in young mice. In addition, transplanted EPCs from cold-exposed mice had a greater ability to reduce cerebral ischemic injury and promote local angiogenesis compared to those from control mice, and EPCs from donor animals could integrate into the recipient ischemic murine brain. Furthermore, transplanted EPCs might exert paracrine effects on cerebral ischemic injury, which could be improved by preventive cold acclimation. Moreover, preventive cold acclimation could also enhance EPC function, promote local angiogenesis, and protect against cerebral ischemic injury in aged mice. CONCLUSIONS: Preventive cold acclimation before ischemia onset improved long-term stroke outcomes in mice at least in part via promoting the reparative function of EPC. Our findings imply that a variable indoor environment with frequent cold exposure might benefit individuals at high risk for stroke. PMID- 29339667 TI - Improving Laboratory Assessment in Disorders of Sex Development through a Multidisciplinary Network. AB - The aim of the European Reference Network for Rare Endocrine Disorders (Endo-ERN) is to ensure equal access to high-quality care for all those affected by a rare endocrine condition across Europe, such as a disorder/difference of sex development (DSD), both for children and adults. Although differences in resources, health care systems, and health insurances between the European countries are challenging and require political action, a European laboratory network within Endo-ERN could improve the diagnostic process in individuals with DSD, building on the work done by previous European collaborations such as the COST action DSDnet. In close collaboration, clinicians and laboratory specialists must make every effort to standardize diagnostic protocols, achieve necessary harmonization of various laboratory tests, e.g., the hCG stimulation test, and implement an external quality control system. This should ideally result in comparable quality across the network centers allowing the sharing of reference values. This would not only improve patient care but also greatly facilitate research. PMID- 29339668 TI - Proinflammatory Cytokines and Oxidative Stress Decrease the Transport of Dopamine Precursor Tyrosine in Human Fibroblasts. AB - BACKGROUND: Proinflammatory cytokines and oxidative stress responses have been extensively implicated in the pathophysiology of neuropsychiatric disorders over the past 2 decades. Moreover, disturbed transport of the dopamine precursor (i.e., the amino acid tyrosine) has been demonstrated, in different studies, across fibroblast cell membranes obtained from neuropsychiatric patients. However, the role and influences of proinflammatory cytokines and oxidative stress, and the reasons for disturbed tyrosine transport in neuropsychiatric disorders, are still not evaluated. AIMS: The present study aimed to assess the role of proinflammatory cytokines and oxidative stress, indicated in many neuropsychiatric disorders, in tyrosine transportation, by using human skin derived fibroblasts. METHODS: Fibroblasts obtained from a healthy control were used in this study. Fibroblasts were treated with proinflammatory cytokines (IL 1beta, IFN-gamma, IL-6, TNF-alpha), their combinations, and oxidative stress, optimized for concentrations and incubation time, to analyze the uptake of 14C tyrosine compared to untreated controls. RESULTS AND CONCLUSION: This study demonstrates that proinflammatory cytokines and oxidative stress decrease the transport of tyrosine (47% and 33%, respectively), which can alter dopamine synthesis. The functionality of the tyrosine transporter could be a new potential biomarker to target for discovering new drugs to counteract the effects of proinflammatory cytokines and oxidative stress in the pathophysiology of neuropsychiatric disorders. PMID- 29339669 TI - Signalling molecules in jaw bones and gingival tissues of patients with Class II and Class III dentofacial deformities. AB - OBJECTIVES: To detect signalling molecule specificities in jaw bone growth zones in skeletal class II and class III patients and compare them to those of a control group. MATERIAL AND METHODS: Twenty skeletal Class II and 20 skeletal Class III patients who underwent orthognathic surgery treatment were in the study group and five skeletal Class I patients who had impacted third molars extracted were in the control group. During the orthognathic surgery, tissue samples were taken from the tuber maxillae, ramus mandibulae anterior and posterior part together with mucosa from the gingival transitory fold in the second molar region of the lower jaw. The samples were stained to detect TGF-beta, BMP2/4, FGFR1, VEGF, OC, OP and MMP2 expression. The distributions of these factors were assessed semiquantitatively. RESULTS: We observed significant expression of TGF beta, BMP2/4, OC and OP in the bone tissue of the study group. FGFR1 expression was more pronounced only in mucosa. VEGF and MMP2 were found only in some tissue samples. More apoptotic cells were observed in the bone tissue and soft tissue of the control patients than in those of the skeletal Class II and Class III patients, in which apoptotic cell frequencies were relatively equal. CONCLUSION: From bone tissue in tuber maxillae region the greater TGF-beta and BMP2/4 expression is seen in Class III and control groups, comparing to Class II. In ramus mandibulae anterior part the expression of significant factors in bone tissue growth (TGF-beta un BMP2/4) is higher in the control group and Class II patients, while in ramus mandibulae posterior part higher expression of TGF-beta and BMP2/4 is in Class III patients, comparing to Class II, which indicates to a preserved growth potential in these jaw bone regions. More active bone extracellular matrix protein (osteocalcin and osteopontin) expression in tuber maxillae region both in class II and class III patient groups and different expression in ramus mandibulae anterior part, prove to the bone mineralization and metabolism activity changes, which, perhaps, characterize just these dentofacial deformations. PMID- 29339670 TI - Family history and risk factors for cleft lip and palate patients and their associated anomalies. AB - BACKGROUND AND AIMS: Several environmental and genetic issues have been suspected as risk factors for oral clefts; and many studies have been conducted in this regard; however, large socioeconomic impacts of cleft lip and or palate (CL/P) justifies the need for further multifactorial researches. Current study aimed to assess parental risk factors for CL/P and its associated malformations. MATERIAL AND METHODS: Hospital records of 187 consecutive syndromic and non-syndromic children with cleft lip and or palate (103 boys and 84 girls) with a mean age of 1.7 (SD 2.2) years and 190 consecutive non-cleft children (103 boys and 87 girls) with a mean age of 2.8 (SD 2.2) years formed this study. Parental risk factors and abnormalities and physical problems and anomalies were evaluated in all subjects. RESULTS: Family history of clefts (OR 7.4; 95% CI), folic acid consumption (OR 7.3; 95% CI) and consanguineous marriage (OR 3.2; 95% CI) were quite strongly associated with increased risk of CL/P. In addition, all congenital abnormalities and physical problems had significantly higher incidence in CL/P patients. CONCLUSIONS: The findings of this study suggest that expecting mothers of consanguineous marriage and families with a history of CL/P should be extra cautious about the occurrence of CL/P. PMID- 29339671 TI - Psychosocial factors correlated with children's dental anxiety. AB - Authors developed an idea of seven blocks with different psychosocial factors that could correlate with children's dental anxiety and explain its variance. Aim of the study was to evaluate correlation between psychosocial factors and children's dental anxiety. Totally, 240 randomly selected children (mean age M=7.96, SD=2.61, range 4 to 12) and their parents took part in the study. Parents evaluated their own (MDAS) and their children's anxiety (CFSS-DS). Psychosocial factors were evaluated by a large questionnaire, developed for this study. Dental status was fixed and child's behavior in dental setting was evaluated with Frankl's scale. Pearson's correlation of CDA with all variables and stepwise linear regression with the correlating variables within the seven psychosocial factor blocks was performed. Dental experience and attitude factors (crying at dentist and dental treatment with difficulties) as well as Children's personality and behavior factors (general anxiety and children's behavior at dentist) gave the most effect on CDA, totally explaining 56% and 54% of variance, respectively. Children's medical experience and attitude factors (anxiety and caution towards doctors) as well as Parental/information factors (parental dental anxiety, promising prizes before treatment) explained 34% and 31% of CDA variance, respectively. Socio-economic factors (number of children and mother's age) explained 15%, but oral care habits and attitude (brushing as obligation) - 14% of CDA variance. Family distress factors had no correlation with CDA and were excluded of further analysis. Children's dental anxiety variance is at best explained by Child's dental experience and attitude factors and Child's personality and behavior factors. PMID- 29339672 TI - Serum and salivary lactate dehydrogenase levels as biomarkers of tissue damage among cigarette smokers. A biochemical study. AB - OBJECTIVE: To estimate the serum and salivary lactate dehydrogenase levels in cigarette smokers and non-smokers. MATERIALS AND METHODS: In this study lactate dehydrogenase levels were estimated in 30 healthy individuals with no tobacco related habits and in 30 patients with history of smoking cigarettes for a minimum of 2 years using Spectrophotometry. RESULTS: The mean values for serum and salivary lactate dehydrogenase levels were higher in cigarette smokers when compared to non-smokers. Serum lactate dehydrogenase levels on comparison between the groups was statistically significant (p=0.04). The values of salivary lactate dehydrogenase levels between the groups was highly significant (p<0.001). CONCLUSION: Cigarette smoking leads to an increase in serum as well as salivary Lactate dehydrogenase levels as indicator of tissue damage in the oral cavity. The present study indicates saliva as a better test medium than serum in determination of lactate dehydrogenase levels. PMID- 29339673 TI - Histopathological and microradiological features of peri-implantitis. A case report. AB - AIM: The aim of this study was to describe the histological characteristics of a peri-implantitis case in the anterior maxilla. CASE REPORT: A dental implant inserted in the missing upper right lateral incisor region has been removed with its adjacent tissues. The samples were placed in 4% formalin for 10 days and, were embedded in methacrylate prior to sawing and grinding. The samples were processed with Donath's sawing and grinding technique, stained with toluidine blue and mounted on high-sensitivity plates for histology and microradiography. The structure of the connective tissue revealed that there was a lack of collagen fibers running parallel to the implant surface. The connective tissue showed a loose granulation tissue with medium-density lymphocyte infiltration and neutrophilic leukocytes. In addition to the collagen loss in the infiltrated tissue, an excessive bone resorption was present. Peripherally, the light microscopy showed the osteoclasts and their adhesive apparatus which promote bone resorption. CONCLUSION: With the increasing number of implants being placed, peri implantitis has become much more prevalent. Every additional study focusing on the characteristics of peri-implantitis would be beneficial to gain an understanding of bone and soft tissue behavior around the implant and could help to develop appropriate therapeutic approaches for peri-implant disease. PMID- 29339674 TI - Relation between high serum hepcidin-25 level and subclinical atherosclerosis and cardiovascular mortality in hemodialysis patients. AB - OBJECTIVE: In hemodialysis (HD) patients, cardiovascular disease (CVD) is the major cause of mortality and morbidity. In atherosclerotic diseases, iron gets accumulated in the arterial wall. Hepcidin is an important hormone in iron metabolism. Furthermore, hepcidin is associated with atherosclerotic disease. Therefore, this study aims to investigate the relation of serum hepcidin-25 (SH 25) and sub-clinic atherosclerosis measured by carotid intima-media thickness (CIMT) and mortality in HD patients. METHODS: We enrolled 82 HD patients in a cross-control study. We measured SH-25 using ELISA kit and CIMT using high resolution real-time ultrasonography. After 4 years of first assessment, we investigated the relation between all-cause and cardiovascular mortality and SH 25 and CIMT. RESULTS: Two patients were excluded because of renal transplantation. The survivors were younger (53.7+/-15.1 vs. 65.2+/-15.5; p<0.05) and CIMT was lower (0.83+/-0.2 vs. 0.95+/-0.2; p<0.05); however, there was no significant difference in SH-25 levels between the groups (29.1+/-13 vs. 32.4+/ 22.4; p=0.767). The patients who died of CVD were significantly older (63.7+/ 16.1 vs. 53.7+/-15.1; p<0.05) and had significantly higher CIMT (0.94+/-0.2 vs. 83+/-0.2; p<0.05). The SH-25 levels were statistically significantly higher in patients who died of CVD (40.3+/-25 vs. 29.1+/-13; p<0.05). Linear regression analysis showed a positive correlation between CIMT and SH-25 in the study population and in those who died from CVD (r=0.41; p<0.05 and r=0.606; p<0.05, respectively). CONCLUSION: This study suggests that hepcidin is effective in cardiovascular mortality and pathophysiology of subclinical atherosclerosis in HD patients. PMID- 29339675 TI - Association of serum prolidase activity in patients with isolated coronary artery ectasia. AB - OBJECTIVE: Coronary artery ectasia (CAE) is defined as an angiographic enlargement of a portion of the coronary artery between 1.5 and 2 times the diameter of the adjacent normal coronary artery. It has been demonstrated that increased serum prolidase activity (SPA) is associated with increased collagen turnover. We aimed to analyze the relationship between CAE and serum SPA levels. METHODS: This study used a prospective case protocol design. A total of 40 consecutive patients with isolated right CAE and normal coronary arteries (23 men, 17 women; mean age, 62.4+/-10.8 years) were evaluated. The control group included the same number of consecutive patients with angiographically normal coronary arteries (20 men, 20 women; mean age, 63.8+/-11.1 years). Clinical characteristics, laboratory results, cardiovascular risk factors, and medication use were recorded. SPA was measured using a spectrophotometer. Student's t-test, Mann-Whitney U test, chi-square test, Pearson's and Spearman's correlations, logistic regression analysis, and ROC curve analysis were used for statistical analysis. RESULTS: SPA was significantly higher in the CAE group compared with the control group (1635.2+/-492.0 U/L and 986.2+/-422.3 U/L, respectively; p<0.001). The relationship of SPA with CAE proved to be significant (r=0.512; p<0.001). SPA also served as an independent predictor of CAE (OR=1.003; 95% CI, 1.001-1.005; p=0.002). The SPA value of 1170 U/L was predictive of CAE, with a sensitivity of 85% and specificity of 60% (AUC=0.854; 95% CI, 0.763-0.944; p<0.001). CONCLUSION: The activity of this enzyme was significantly correlated with CAE. PMID- 29339676 TI - Electrical and histological remodeling of the pulmonary vein in 2K1C hypertensive rats: Indication of initiation and maintenance of atrial fibrillation. AB - OBJECTIVE: Hypertension is a significant risk factor for atrial fibrillation (AF). The role of pulmonary vein (PV) remodeling in the mechanistic association between hypertension and AF is not definitive. In this study, we aimed to identify changes in the electrophysiology and histology in PVs in two-kidney, one clip (2K1C) hypertensive rats. METHODS: Fifty male Sprague-Dawley rats were classified into the 2K1C and sham-operated groups. The systolic blood pressure was measured every 2 weeks. The left atrial diameter was measured by transthoracic echocardiography. Left superior PV (LSPV) and left atrial (LA) fibrosis was evaluated by Masson's trichrome staining. The expression of fibrosis markers [angiotensin II (Ang II), transforming growth factor-beta1 (TGF-beta1), matrix metalloproteinase-2 (MMP-2), and collagen I (Col I)] and ion channels [Kir2.1, Kir2.3, Cav1.2, and Nav1.5] in LSVP was quantified by western blot. Conventional microelectrodes were used to record the action potential duration at 90% repolarization (APD90) and effective refractory period (ERP) in isolated LA. RESULTS: At 4 months, the 2K1C hypertensive rats developed LA dilation. Col deposition in LSPV and left atrium and expression of TGF-beta1, MMP-2, and Col I in LSPV were significantly increased in 2K1C hypertensive rats. In addition, hypertension reduced the expression of Nav1.5 and Kir2.1, although there were no significant differences in APD90; ERP; and expression of Ang II, Kir2.3, and Cav1.2 between the two groups. CONCLUSION: Hypertension may lead to changes in the electrophysiology and histology of rats PVs, which is characterized by significant reduction in the expression of Nav1.5 and Kir2.1 and increase in interstitial fibrosis. These observations may clarify the role of PVs in the mechanistic association between hypertension and AF. PMID- 29339677 TI - Acute myocardial infarction shortly after valve-in-valve transcatheter aortic valve implantation successfully managedwith challenging percutaneous coronary intervention. AB - In recent years, transcatheter aortic valve implantation (TAVI) has been considered a novel option for the management of surgically high-risk patients requiring aortic valve replacement. Presently described is a case of acute coronary syndrome (ACS) managed with a challenging primary percutaneous coronary intervention (PCI) shortly after a valve-in-valve TAVI intervention. This case highlights 2 important issues: PCI may be an option for the management of coronary heart disease in patients after TAVI even in the setting of demanding features associated with coronary osteal engagement, and secondly, TAVI may serve as a potential risk factor for future coronary ischemic syndromes, largely due to its potential adverse effects on coronary flow dynamics, etc. However, the latter notion is quite speculative, and should be tested in further studies. PMID- 29339678 TI - Endarteritis of coarctation of the aorta diagnosed with PET-CT. AB - Infective endocarditis (IE) is an infectious disease that affects the endothelium of the large intrathoracic vessels, heart valves, and intra-cardiac foreign body material. A 20-year-old woman was admitted to the cardiology department with complaints of fever and palpitations. Transthoracic echocardiography revealed a bicuspid aortic valve, aortic root enlargement, and aortic coarctation. Transesophageal echocardiography revealed a bicuspid aortic valve, but there was no vegetation. Methicillin-sensitive Staphylococcus aureus was identified on a blood culture. 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) revealed increased intensive glucose uptake on the dilated aortic segment adjacent to the distal coarctation zone. Several reports have shown promising results for radio-labelled white blood cell single-photon emission computed tomography and 18F-FDG PET-CT imaging in IE. To our knowledge, this is the first described case in which PET-CT revealed endarteritis of the descending aorta in a patient without prosthetic material. PMID- 29339679 TI - A rare complication in a patient taking rivaroxaban: Alveolar hemorrhage. AB - Alveolar hemorrhage (AH) is a heterogeneous clinical syndrome with a high mortality rate that is characterized by extensive bleeding into the alveolar spaces. AH usually develops secondary to immunological disease and, less frequently, to drug use. Presently described is the case of an 86-year-old woman with AH who had been using rivaroxaban for 6 months. PMID- 29339680 TI - Case Image: Percutaneous approach to giant coronary artery aneurysm: successful implantation of covered stent graft. PMID- 29339681 TI - Case Image: Superdominant right coronary artery and left anterior descending artery arising from the right coronary sinus: a rare coronary artery anomaly. PMID- 29339682 TI - Case Image: A rare angiographic image of Vieussens' arterial ring associated with coronary to pulmonary artery fistula. PMID- 29339683 TI - Case Image: Double aortic arch presenting with respiratory disorders. PMID- 29339684 TI - [2017 ESC focused update on dual antiplatelet therapy in coronary artery disease developed in collaboration with EACTS: What is new?] PMID- 29339685 TI - Intra-aortic balloon pump use in acute coronary syndrome: One size does not fit all! PMID- 29339686 TI - Clinical characteristics and outcomes of acute coronary syndrome patients with intra-aortic balloon pump inserted in intensive cardiac care unit of a tertiary clinic. AB - OBJECTIVE: An intra-aortic balloon pump (IABP) is a mechanical support device that is used in addition to pharmacological treatment of the failing heart in intensive cardiac care unit (ICCU) patients. In the literature, there are limited data regarding the clinical characteristics and in-hospital outcomes of acute coronary syndrome patients in Turkey who had an IABP inserted during their ICCU stay. This study is an analysis of the clinical characteristics and outcomes of these acute coronary syndrome patients. METHODS: The data of patients who were admitted to the ICCU between September 2014 and March 2017 were analyzed retrospectively. The data were retrieved from the ICCU electronic database of the clinic. A total of 142 patients treated with IABP were evaluated in the study. All of the patients were in cardiogenic shock following percutaneous coronary intervention, at the time of IABP insertion. RESULTS: The mean age of the patients was 63.0+/-9.7 years and 66.2% were male. In-hospital mortality rate of the study population was 54.9%. The patients were divided into 2 groups, consisting of survivors and non-survivors of their hospitalization period. Multivariate analysis after adjustment for the parameters in univariate analysis revealed that ejection fraction, Thrombolysis in Myocardial Infarction flow score of <=2 after the intervention, chronic renal failure, and serum lactate and glucose levels were independent predictors of in-hospital mortality. CONCLUSION: The mortality rate remains high despite IABP support in patients with acute coronary syndrome. Patients who are identified as having a greater risk of mortality according to admission parameters should be further treated with other mechanical circulatory support devices. PMID- 29339687 TI - Subclinical left ventricular systolic dysfunction in patients with severe aortic stenosis: A speckle-tracking echocardiography study. AB - OBJECTIVE: In patients with aortic stenosis (AS), the left ventricular (LV) geometry changes due to the increased LV afterload. However, subclinical myocardial dysfunction can develop despite a normal LV ejection fraction (EF). This study was an investigation of subclinical LV systolic dysfunction in patients with severe AS with a normal LV EF using a strain imaging method, speckle-tracking echocardiography (STE), and an evaluation of its correlation with novel indices to assess the severity of AS. METHODS: A total of 45 asymptomatic patients with severe AS and 25 age- and sex-matched controls without any cardiac disease and with preserved LV EF (EF >=60%) were studied. In addition to performing conventional echocardiography and STE-based strain imaging, novel indices (energy loss index [ELI], valvulo-arterial impedance, systemic arterial compliance) were also measured. RESULTS: The LV EF, and the LV end-diastolic and end-systolic diameters were similar in the 2 groups. The LV longitudinal peak systolic strain (10.66+/-1.15% to 19.66+/-2.62%; p=0.0001) and strain rate (0.32+/-0.07 s-1 to 1.85+/-0.32 s-1; p=0.0001) were significantly impaired in the study patients compared to the controls, demonstrating subclinical ventricular systolic dysfunction. A significant positive correlation was observed between the ELI and the LV strain/strain rate (r=0.45, p=0.002; r=0.55, p=0.0001, respectively). CONCLUSION: Patients with severe AS develop subclinical LV systolic dysfunction, despite a preserved EF. Novel strain imaging-based echocardiographic techniques may provide additional data that can detect early myocardial systolic deterioration in these patients. PMID- 29339688 TI - Choice of treatment based on Turkish hypertension consensus report: Do we follow the recommendations? AB - OBJECTIVE: The aim of this study was to determine how often the recommendations of the Turkish Hypertension Consensus Report are followed, and to draw attention to the report. METHODS: The demographic information of 1000 patients diagnosed with hypertension and the details of the antihypertensive medications prescribed at the outpatient service of a tertiary care hospital were recorded, and the data were compared with the recommendations of the report. RESULTS: The mean age of the patients was 62+/-11 years. In all, 623 (62.3%) of the 1000 patients were women, and 377 (37.7%) were men. A combination of an angiotensin II receptor blocker (ARB) and a diuretic was the most frequently observed prescription. A diuretic was the most used antihypertensive drug (58.7%), followed by an ARB (48.8%). However, as a monotherapy, a calcium channel blocker (CCB) was the most commonly used antihypertensive drug (19.2%). The most frequently used antihypertensive drug group in older patients was diuretics (63.6%), as proposed in the report. Beta blockers (49.1%) were used more often than expected. For the diabetic group also, a diuretic (60.7%) was the most frequently used antihypertensive drug, followed by an ARB (51.1%) and a CCB (45.2%). Angiotensin converting enzyme (ACE) inhibitors (34.6%) were the fifth most preferred antihypertensive drug class. However, when ACE inhibitors and ARBs were considered as a single group, known as renin-angiotensin system (RAS) blockers, these RAS blockers were the most prescribed antihypertensive drug class, followed by diuretics. In the group of patients with coronary artery disease, treatment was found to be generally consistent with the report, but the use of diuretics was greater than expected. Lastly, 124 of 160 patients who had chronic kidney disease were given RAS blocker therapy, which was in line with the consensus report recommendations. CONCLUSION: Antihypertensive therapies were individualized, as suggested by the consensus report. However, there are proposals still to be considered in special patient groups. PMID- 29339689 TI - Atherogenic index of plasma as a cardiovascular risk marker in manic, depressive, and euthymic stages of bipolar disorder. AB - OBJECTIVE: Individuals with bipolar disorder (BD) frequently suffer from cardiovascular disease (CVD), and it is a leading cause of mortality. Clinicians use routine laboratory tests, including a lipid profile, to predict cardiovascular risk. In addition, a particular lipid ratio, the atherogenic index of plasma (AIP), is a sensitive, new parameter that can be used to assess highrisk groups. To our knowledge, this is the first study evaluating cardiovascular risk via AIP in different stages of BD. METHODS: The study group consisted of male patients with BD who were in a manic, depressive, or euthymic state, and age- and gender-matched healthy controls. Lipid profiles were analyzed and the AIP parameter of logarithm of triglyceride (TG) / high-density lipoprotein cholesterol (HDLc) was calculated for all of the participants. The significance level was set at p<0.05. RESULTS: A total of 44 BD patients experiencing a manic episode, 35 depressive BD patients, 42 euthymic patients, and 41 healthy controls matched for age, gender, and smoking status were enrolled in the study. The AIP level was significantly different between groups (p=0.009). Pairwise comparisons of the groups revealed that the AIP level of depressive patients was significantly higher than that of the manic, euthymic, and control groups (p=0.013, p=0.048, and p=0.021, respectively). The AIP level was positively correlated with body mass index, waist circumference, metabolic syndrome, total cholesterol, low-density lipoprotein, and triglyceride level, and was negatively correlated with the HDLc level. CONCLUSION: In this study, male BD patients in a depressive episode demonstrated an increase in cardiovascular risk. The significant correlations between AIP and other conventional cardiovascular risk factors indicate that AIP may be more useful to identify individuals with BD at high risk for CVD than absolute lipid parameters. PMID- 29339690 TI - The rationale and design of the national peripartum cardiomyopathy registries in Turkey: The ARTEMIS-I and ARTEMIS-II studies. AB - OBJECTIVE: Peripartum cardiomyopathy (PPCM) is left ventricular (LV) systolic dysfunction with an ejection fraction of <=45% occurring in the later stages of pregnancy or soon after delivery. Although various risk factors have been identified, the exact cause of the disease is unknown. Unlike most countries in the European region, Turkey has yet to determine the current PPCM burden. A registry for this purpose does not exist. To close this gap, the A RegisTry of pEripartuM cardIomyopathy in Turkish patientS (ARTEMIS-I and ARTEMIS-II), was planned and endorsed by the Turkish Society of Cardiology. The aim of this manuscript is to describe the rationale and design of the ARTEMIS-I and ARTEMIS II registries. METHODS: ARTEMIS was designed to be the nationwide PPCM registry of Turkey, with the goal of identifying problems and opportunities while improving quality and consistency in the medical care of PPCM patients. A second goal is to determine the clinical characteristics pertinent to patients in this region. The ARTEMIS registry will consist of 2 arms. All secondary and tertiary cardiology centers have been electronically invited to participate in ARTEMIS-I, which will be conducted to assess the current standard of care and outcome measures. Centers will be asked to enroll PPCM patients admitted to their clinic in last 5 years retrospectively. Eligibility criteria will consist of pregnant or early postpartum woman without a previous history of heart failure (HF) or known pathology associated with HF, LV ejection fraction <=45%, and exclusion of other causes of LV systolic dysfunction. ARTEMIS-II will consist of the prospective enrollment of patients. CONCLUSION: The nationwide PPCM registries, ARTEMIS-I and ARTEMIS-II, are designed to determine the current status of medical care, provide insights into nature of the disease, and suggest solutions on how to improve care and outcomes in these patients. PMID- 29339691 TI - Rationale, design, and methodology of the Evaluation of Perceptions, Knowledge, and Compliance with the Guidelines in Real Life Practice: A Survey on the Under treatment of Hypercholesterolemia. AB - OBJECTIVE: A wide gap exists between dyslipidemia guidelines and their implementation in the real world, which is primarily attributed to physician and patient compliance. The aim of this study is to determine physician and patient adherence to dyslipidemia guidelines and various influential factors. METHODS: The Evaluation of Perceptions, Knowledge, and Compliance with the Guidelines in Real Life Practice: A Survey on the Under-treatment of Hypercholesterolemia (EPHESUS) trial (ClinicalTrials.gov number NCT02608645) will be an observational, multicenter, non-interventional study. The study targets enrollment of 2000 patients from 50 locations across Turkey. All of the data will be collected in a single visit and current clinical practice will be evaluated. A cross-sectional survey of public perception and knowledge of cholesterol treatment among Turkish adults will be performed. All consecutive patients admitted to cardiology clinics who are in the secondary prevention group (coronary heart disease, peripheral artery disease, atherosclerotic cerebrovascular disease) and who are in the high risk primary prevention group (type 2 diabetes mellitus with no prior known coronary heart disease; patients who had markedly elevated single risk factors, in particular, cholesterol >8 mmol/L [>310 mg/dL], blood pressure >=180/110 mmHg, a calculated Systematic Coronary Risk Evaluation [SCORE] >=5%, or <10% 10-year risk of fatal cardiovascular disease) will be included. Demographic, lifestyle, medical, and therapeutic data will be collected with a survey designed for the study. CONCLUSION: The EPHESUS registry will be the largest study conducted in Turkey evaluating the adherence to dyslipidemia guidelines both in secondary and high-risk primary prevention patients. PMID- 29339692 TI - Transvenous extraction of a 26-year-old Accufix atrial lead using TightRail rotating dilator sheath. AB - With the increasing number of implanted pacemakers and implantable cardioverter defibrillators, removal is required more frequently. Presently described is the transvenous extraction of a 26-year-old Accufix atrial lead using a mechanical dilator sheath. A 50-year-old male patient was admitted to the clinic with a pacemaker pocket infection. The atrial lead was an Accufix Bipolar J-Atrial active fixation lead, a model that was recalled in 1994, after reports of 2 deaths and 2 nonfatal injuries related to protrusion of the J retention wire. Both the atrial and ventricular leads were extracted using a mechanical dilator sheath. The Pacemaker Lead Extraction with the Excimer Sheath (PLEXES) Trial reported that of the 57 Accufix leads randomized to a non-laser approach, only 47% were removed successfully, compared with 96% of laser-randomized cases. Since laser sheaths are not available in Turkey, use of a mechanical dilator sheath was required. To our knowledge, this is the oldest Accufix lead extracted with a non laser sheath. During the extraction of the ventricular lead, the tip of the lead broke off inside the right ventricle and the residual part was left inside the heart. During 3 months of follow-up, no signs of infection or any other undesirable events were encountered. PMID- 29339693 TI - Simultaneous total occlusion of two coronary arteries associated with use of drospirenone-ethinyl estradiol (oral contraceptive). AB - Although the use of oral contraceptives is associated with an increased risk of venous thromboembolic disease, the risk of myocardial infarction (MI) is unclear. A new, third-generation contraceptive agent, drospirenone-ethinyl estradiol, which contains less estrogen and a new progestogen, drospirenone, in a different combination, has been considered more reliable in terms of risk of MI. However, there have been some cases of MI associated with the use of drospirenone-ethinyl estradiol, despite the protective effects of this oral contraceptive. In this report, a 33-year-old woman who had used drospirenone-ethinyl estradiol for 6 months was admitted with MI and symptoms of cardiogenic shock. Coronary angiography revealed the total occlusion of 2 coronary arteries and so percutaneous coronary intervention was performed. To the best of our knowledge, this is the first case report of simultaneous total occlusion of 2 coronary arteries associated with the use of drospirenone-ethinyl estradiol in the English language medical literature. PMID- 29339694 TI - Aortic alpha-smooth muscle actin expressions in aortic disorders and coronary artery disease: An immunohistochemical study. AB - OBJECTIVE: The is to report immunohistochemical observations of aortic alpha smooth muscle actin (SMA) expressions in patients with aortic aneurysm, acute aortic dissection, and coronary artery disease and to discuss phenotypic switching of smooth muscle cells (SMCs) of these lesions. METHODS: Forty-nine consecutive patients scheduled for surgical treatment for acute type A aortic dissection (20 patients), aortic aneurysm (9 patients), and coronary artery disease (20 patients) were included. Surgical specimens of the aorta were obtained and prepared for hematoxylin and eosin and immunohistochemical stainings. RESULTS: A comparison of aortic structural changes between the three groups showed that patients with coronary artery disease had the least severe aorta degeneration with the most intense alpha-SMA positivity. Aortic structural impairment was the most severe in patients with aortic dissection, whereas alpha SMA positivity was more intense in patients with aortic dissection than in those with aortic aneurysm. CONCLUSION: Disparities in alpha-SMA expressions in the aortic tissues of the three groups represent the extent of SMC degenerations or a phenotypic switching between contractile and synthetic SMCs. The results imply severe SMC degenerations in patients with aortic aneurysm, which may be beneficial because of the production of extracellular matrix necessary for healing of the vascular wall, but severe disruptions in elastic fibers in patients with aortic dissection. Patients with coronary artery disease show slight SMC degeneration and phenotypic switching among the three groups. The possible apoptotic and genetic mechanisms of aortic structural impairments warrant further elaborations. PMID- 29339695 TI - Smooth muscle phenotype in aortic diseases: Are there other histopathological markers besides contractile myofibrils? PMID- 29339696 TI - Chronic ethanol increases calcium/calmodulin-dependent protein kinaseIIdelta gene expression and decreases monoamine oxidase amount in rat heart muscles: Rescue effect of Zingiber officinale (ginger) extract. AB - OBJECTIVE: Association between chronic alcohol intake and cardiac abnormality is well known; however, the precise underlying molecular mediators involved in ethanol-induced heart abnormalities remain elusive. This study investigated the effect of chronic ethanol exposure on calcium/calmodulin-dependent protein kinase IIdelta (CaMKIIdelta) gene expression and monoamine oxidase (MAO) levels and histological changes in rat heart. It was also planned to find out whether Zingiber officinale (ginger) extract mitigated the abnormalities induced by ethanol in rat heart. METHODS: Male wistar rats were divided into three groups of eight animals each: control, ethanol, and ginger extract treated-ethanol (GETE) groups. RESULTS: After 6 weeks of treatment, the results revealed a significant increase in CaMKIIdeltatotal and isoforms delta2 and delta3 of CaMKIIdelta gene expression as well as a significant decrease in the MAO levels in the ethanol group compared to that in the control group. Moreover, compared to the control group, the ethanol group showed histological changes, such as fibrosis, heart muscle cells proliferation, myocyte hypertrophy, vacuolization, and focal lymphocytic infiltration. Consumption of ginger extract along with ethanol ameliorated CaMKIIdeltatotal. In addition, compared to the ethanol group, isoforms gene expression changed and increased the reduced MAO levels and mitigated heart structural changes. CONCLUSION: These findings indicate that ethanol-induced heart abnormalities may, in part, be associated with Ca2+ homeostasis changes mediated by overexpression of CaMKIIdelta gene and the decrease of MAO levels and that these effects can be alleviated by using ginger extract as an antioxidant and anti-inflammatory agent. PMID- 29339697 TI - The value of real-time myocardial contrast echocardiography for detecting coronary microcirculation function in coronary artery disease patients. AB - OBJECTIVE: The aim of this study was to evaluate the value of real-time myocardial contrast echocardiography (RT-MCE) for detecting coronary microcirculation (CM) function in coronary artery disease (CAD) patients. METHODS: Sixty-five consecutive patients were divided into CAD (n=52) and no-CAD (n=13) groups using coronary angiography (CAG). All patients underwent RT-MCE at rest and CAG within 1 week after RT-MCE. The ventricular segments in CAD patients were divided semi-quantitatively into ischemic and non-ischemic myocardial groups based on RT-MCE images. Myocardial blood volume (A), myocardial blood flow velocity (beta), and mean myocardial blood flow (Axbeta) were obtained. The Gensini scores were calculated for CAD patients. The receiver operating characteristic (ROC) curve areas of A, beta, and Axbeta were calculated to assess CM function in CAD patients. RESULTS: A total of 798 and 204 segments were investigated in the CAD and non-CAD groups, respectively. In CAD patients, 332 ischemic and 466 non-ischemic segments were identified. The values of A, beta, and Axbeta were significantly different among non-CAD, CAD, ischemic, and nonischemic groups. ROC curve areas of A, beta, and Axbeta were 0.85, 0.79, and 0.83, respectively, and significant differences were observed in these values among three Gensini score groups of the CAD patients. CONCLUSION: Varying degrees of CM function deterioration was observed in CAD patients both in ischemic and non-ischemic areas, with the deterioration being more sever in the former. PMID- 29339698 TI - Association of Interleukin-1 Gene cluster polymorphisms with coronary slow flow phenomenon. AB - OBJECTIVE: Coronary slow flow phenomenon (CSFP) is characterized by the decreased rate of contrast progression in epicardial coronary arteries in the absence of significant coronary stenosis. Mounting evidence has showed a significant association between inflammation and CSFP severity. This study aimed to evaluate possible associations between interleukin-1 receptor antagonist (IL-1ra) gene variable number tandem repeat (VNTR), IL-1beta -511 single nucleotide (SNP), and IL-1beta+3954 SNP mutations with CSFP. METHODS: Forty-eight patients with CSFP and 62 controls with angiographically normal coronary arteries were prospectively enrolled in the study. Genotypes were assessed using the polymerase chain reaction (PCR)-based restriction fragment length polymorphism (PCR-RFLP) technique. RESULTS: Homozygote genotype for allele 2 of+3954 C>T 2/2 genotype was significantly more frequent in patients with CSFP than in the control group, whereas 1/2 genotype was more frequent in the control group (35.4% versus 14.5% for 2/2 genotype and 25% versus 35.5% for 1/2 genotype in CSFP and control groups, respectively, X2=6.6; p=0.04). The allelic frequency of allele 2 of this polymorphism was significantly higher in the CSFP group than in the control group (47.9% versus 28.6% in the control group, X2=5.6; p=0.02). However, there was no significant difference with regard to genotype or allelic frequencies of IL-1ra VNTR or IL-1beta -511 SNP polymorphisms between patients with CSFP and controls. CONCLUSION: IL-1beta+3954 SNP mutations are significantly more common in patients with CSFP. It may suggest that the tendency for inflammation may contribute to the presence of this phenomenon. PMID- 29339699 TI - Impact of gender and age on the association of the BUD13-ZNF259 rs964184 polymorphism with coronary heart disease. AB - OBJECTIVE: Coronary heart disease (CHD) is the most common cause of death worldwide. This study aimed to validate the association of the rs964184 polymorphism with the CHD risk and included 874 CHD patients and 776 controls. METHODS: rs964184 polymorphism genotyping was performed using Tm-shift polymerase chain reaction. RESULTS: A strong association of the rs964184 polymorphism with CHD was found (genotype: X2=14.365, p=0.001; allele: X2=14.191, p=1.67x10-4; power=0.965). Gender analysis revealed a significant association only in males (genotype: X2=12.387, p=0.002; allele: X2=12.404, p=4.32x10-4; OR=1.467, 95% CI=1.185-1.817, power=0.945). Age and gender analyses revealed significant associations of the rs964184 polymorphism with CHD in males between the ages of 55 and 65 years (genotype: X2=10.070, p=0.007; allele: X2=10.077, p=0.002; OR=1.706, 95% CI=1.224-2.377, power=0.996) and in females older than 65 years (genotype: X2=9.462, p=0.009; allele: X2=9.560, p=0.002; OR=2.112, 95% CI=1.308 3.412, power=0.994). Further subgroup analysis suggested that rs964184 genotypes were significantly associated with TG levels in the patients (r=0.191, adjusted p=1.05x10-5) and controls (r=0.101, adjusted p=0.026). CONCLUSION: Our results indicate that both gender and age have great impacts on the association of the rs964184 polymorphism with CHD among Chinese. PMID- 29339700 TI - Assessment of the relationship between reperfusion success and T-peak to T-end interval in patients with ST elevation myocardial infarction treated with percutaneous coronary intervention. AB - OBJECTIVE: T-peak-T-end (TPE) interval, which represents the dispersion of repolarization, is defined as the interval between the peak and end of the T wave, and is associated with increased malignant ventricular arrhythmia and sudden cardiac death (SCD) in patients with ST elevation myocardial infarction (STEMI). Although prolonged TPE interval is associated with poor short- and long term outcomes, even in patients with STEMI treated with successful primary percutaneous coronary intervention (pPCI), clinical, angiographic, and laboratory parameters that affect TPE remain to be elucidated. The aim of our study was to evaluate the potential relationship between prolonged TPE interval and reperfusion success using ST segment resolution (STR) in patients with STEMI undergoing pPCI. METHODS: In the current study, 218 consecutive patients with STEMI who underwent pPCI were enrolled; after exclusion, 164 patients were included in the study population. RESULTS: Patients were divided into two groups according to the presence of complete (STR%>=70) or incomplete (STR%<70) STR. Preprocedural corrected TPE (cTPEPRE;116+/-21 ms vs. 108+/-21 ms; p=0.027), postprocedural TPE (TPEPOST; 107+/-16 ms vs. 92+/-21 ms; p<0.001), and postprocedural cTPE (cTPEPOST; 119+/-19 ms vs. 102+/-17 ms; p<0.001) intervals were significantly longer in patients with incomplete STR than in patients with complete STR, whereas there was no statistically significant difference between the two groups in terms of pre- and postprocedural and corrected QT intervals. cTPEPRE and cTPEPOST were found to be independent predictors for incomplete STR. CONCLUSION: To our knowledge, this is the first study that evaluated the relationship between TPE interval and no-reflow defined by STR in patients with STEMI who were treated with pPCI. PMID- 29339701 TI - Subclinical reduction in left ventricular function using triplane and 2D speckle tracking echocardiography after anthracycline exposure in children. AB - OBJECTIVE: Speckle tracking echocardiography (STE) enables global and regional evaluation of the left ventricle (LV); therefore, it is the most useful method for detecting subclinical dysfunction in patients exposed to cardiotoxic agents. A novel technique triplane (3P) echocardiography also allows single beat assessment of LV global longitudinal strain values. We firstly aimed to demonstrate both two-dimensional (2D)- and 3PSTE-derived LV global longitudinal strain measurements in children after anthracycline exposure. METHODS: This study included 23 cross-sectionally enrolled asymptomatic pediatric cancer patients who received anthracycline chemotherapy and 17 healthy controls matched by age, gender, and body surface area. All subjects underwent detailed 2D, Doppler, 2D STE, and 3P-STE for assessment of LV function. The patients had received a median cumulative dose of 150 mg/m2. RESULTS: 1. From "Pulsed" Doppler-based measurements, only pulmonary vein flow ratio showed a significant difference between the groups. 2. When measurements were taken from the interventricular septum, the patients' ejection time values decreased significantly and their myocardial performance index values increased significantly; when the measurements were taken from the LV free wall, the peak systolic velocities showed a statistically significant difference. 3. Both 2D- and 3P-STE-derived longitudinal myocardial deformation values of LV were lower in the patient group. 4. 2D-STE-derived LV circumferential strain values were decreased in the patient group, whereas radial strain values were not significantly different compared with matched controls. CONCLUSION: Using Doppler and 2D- and 3P-STE methods, this study confirmed the subclinical LV dysfunction in patients after anthracycline exposure. PMID- 29339702 TI - Efficacy and safety of oral anticoagulation in elderly patients with atrial fibrillation. AB - Elderly patients with atrial fibrillation are at a higher risk of both ischemic and bleeding events compared with younger patients; therefore, balancing risks and benefits of antithrombotic strategies in this population is crucial. Recent studies have shown that because the risk of stroke increases with age more than the risk of bleeding, the absolute benefit of oral anticoagulation is the highest in elderly patients in whom it outweighs the risk of bleeding. Direct oral anticoagulants (DOACs) have been developed as a treatment for the prevention of cardioembolic stroke to overcome some limitations of warfarin, such as the need for frequent monitoring, labile INR values requiring frequent dose adjustment, dietary and drugs interactions, and increased risk of intracranial bleeding. Despite the better safety profiles of DOACs compared with warfarin, elderly patients often remain undertreated because of the fear of bleeding complications. This review summarizes current evidence regarding the risks of thromboembolisms and bleeding in different antithrombotic strategies in elderly patients (aged >=75 years) with atrial fibrillation, including data from the warfarin-controlled phase 3 DOACs trials. PMID- 29339703 TI - A case of asymptomatic large aortopulmonary window in an adult: Role of cardiac CT, CMRI, and 3D printing technology. PMID- 29339704 TI - Valve-sparing aortic root replacement in Loeys-Dietz syndrome and a novel mutation in TGFBR2. PMID- 29339705 TI - A sad story of a man with two ventricles. PMID- 29339706 TI - Tolvaptan should be used very carefully in very elderly patients. PMID- 29339707 TI - Author's Reply. PMID- 29339708 TI - Simultaneous subacute thrombosis in two new-generation drug-eluting stents in different vessels. PMID- 29339709 TI - Short-term evolution of cardiac structure and function in patients on maintenance hemodialysis for end-stage renal disease: A quasi-experimental, non-randomized, evaluation echocardiography study in Cameroon, sub-Saharan Africa. PMID- 29339710 TI - A case of acute intrastent thrombosis accompanied by arterial thrombosis in the lower extremities after percutaneous coronary intervention. PMID- 29339711 TI - Unusual combination of mitral valve prolapse, bicuspid aortic valve, and ventricular septal defect restricted by the tricuspid septal leaflet. PMID- 29339712 TI - A New Year, A New Time. PMID- 29339713 TI - Neuroprotective effect of selective antegrade cerebral perfusion during prolonged deep hypothermic circulatory arrest: Cerebral metabolism evidence in a pig model. AB - OBJECTIVE: The aim of this study was to elucidate the mechanism of cerebral injury and to evaluate selective antegrade cerebral perfusion (SACP) as a superior neuroprotective strategy for prolonged deep hypothermic circulatory arrest (DHCA). METHODS: Twelve pigs (6-8-week old) were randomly assigned to DHCA alone (n=6) and DHCA with SACP (n=6) at 18 degrees C for 80 min groups. Serum S100 was determined using an immunoassay analyzer. The concentrations of cerebral dialysate glucose, lactate, pyruvate, glycerol, and glutamate were measured using a microdialysis analyzer. RESULTS: Compared with a peak at T4 (after 60 min of rewarming) in the DHCA group, the serum S100 in the SACP group was significantly lower throughout the study. The DHCA group was susceptible to significant increases in the levels of lactate, glycerol, and glutamate and the ratio of lactate/pyruvate as well as decreases in the level of glucose. These microdialysis variables showed only minor changes in the SACP group. There was a positive correlation between cerebral lactate and intracranial pressure during reperfusion in the DHCA group. However, the apoptosis index and C-FOS protein levels were lower in the SACP group. CONCLUSION: Metabolic dysfunction is involved in the mechanism of cerebral injury. SACP is a superior neuroprotective strategy for both mild and prolonged DHCA. PMID- 29339714 TI - Stent thrombosis in patients with drug--eluting stents and bioresorbable vascular scaffolds: the feared complication. AB - The percutaneous coronary intervention (PCI) has undergone rapid evolution over the last 40 years and has become one of the most widely performed medical procedures. The introduction of intracoronary stents has improved the safety and efficacy of PCI. However, with the advent of stenting, a new potentially fatal enemy has emerged: stent thrombosis. Ever since, adjunct pharmacological therapy, stent technique, and technology have been adjusted to reduce the risk of stent thrombosis. The aim of the present article is to provide an overview of the past, present, and future aspects of PCI in relation to stent thrombosis. PMID- 29339715 TI - Caveolin-1 Inhibits Proliferation, Migration, and Invasion of Human Colorectal Cancer Cells by Suppressing Phosphorylation of Epidermal Growth Factor Receptor. AB - BACKGROUND Although downregulation of caveolin-1 (Cav-1), which is a key constituent of membrane caveolae and a regulator of cellular processes, is associated with colorectal cancer (CRC), its involvement in the disease progression is largely unknown. This study aimed to explore the role of Cav-1 in CRC and the associated mechanisms. MATERIAL AND METHODS Fresh tissues from patients with CRC and human CRC SW480 cells were used to evaluate Cav-1 and Ki-67 expression using immunohistochemistry and Western blotting. The MTS and Transwell assays were performed to determine the effects of Cav-1 overexpression via pcDNA3.1/Cav-1 plasmid on cell proliferation and metastasis. The effect of Cav-1 on the epidermal growth factor receptor (EGFR) activation was evaluated by Western blotting. The correlation of Cav-1 expression with clinicopathological factors was statistically analyzed. RESULTS Overexpression of Cav-1 significantly reduced proliferation, migration, and invasion of SW480 cancer cells in vitro. The EGF-induced phosphorylation of EGFR and activations of the RAF-MEK-ERK and PI3K-AKT pathways were adversely regulated by Cav-1 overexpression in vitro. In 76 cases of CRC patients with EGFR expression, a negative correlation was observed between the level of Cav-1 and tumor-node-metastasis stage, lymph node metastasis, and distant metastasis (All p<0.05). Finally, the expression level of Cav-1 was negatively correlated with that of Ki-67. CONCLUSIONS This report is the first to show that overexpression of Cav-1significantly inhibits the proliferation, migration, and invasion potential of SW480 cells, possibly through reducing EGF-induced EGFR activation. High Cav-1 expression level may be a predictor of positive outcomes in patients with colorectal cancer. PMID- 29339716 TI - To Explore the Mechanism of the GRM4 Gene in Osteosarcoma by RNA Sequencing and Bioinformatics Approach. AB - BACKGROUND Glutamate metabotropic receptor 4 (GRM4) has been correlated with the pathogenesis of osteosarcoma. The objective of this study was to explore the underlying molecular mechanism of GRM4 in osteosarcoma. MATERIAL AND METHODS The expression levels of GRM4 in four human osteosarcoma cell lines and hFOB1.19 cells were examined by real-time quantitative PCR (RT-qPCR). The U2OS cells of the highest GRM4 expression were transfected with lentivirus-mediated small interfering RNA (siRNA). The differentially expressed genes (DEGs) after GRM4 gene silencing were screened through RNA sequencing, and analyzed by bioinformatics. Additionally, the transcription factors (TFs) targeting GRM4 were predicted and the downstream protein-protein interaction (PPI) network was constructed using the bioinformatics approach. RESULTS A total of 51 significant DEGs were obtained, including 14 upregulated and 37 downregulated DEGs. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the DEGs indicated that four significant enrichment pathways were obtained. A total of six TFs that could be involved in the transcriptional regulation of GRM4 were detected. The results showed that 182 genes in the PPI network were significantly enriched in 14 pathways. The chemokines and chemokine receptors were found to be significantly enriched in three pathways. CONCLUSIONS The DEGs in the four significant enrichment pathways might participate in the development and progression of osteosarcoma through GRM4. The results revealed that EGR1 and CTCF are probably involved in the transcriptional regulation of GRM4, which participates in the progress of osteosarcoma by interacting with chemokines and their receptors. PMID- 29339717 TI - Complex Reconstruction with Flaps After Abdominoperineal Resection and Groin Dissection for Anal Squamous Cell Carcinoma: A Difficult Case Involving Many Specialities. AB - BACKGROUND Anal squamous cell carcinoma accounts for about 2-4% of all lower gastrointestinal malignancies, with a distant disease reported in less than 5%. Although surgical treatment is rarely necessary, this often involve large dissections and difficult reconstructive procedures. CASE REPORT We present a complex but successful case of double-flap reconstruction after abdominoperineal resection and groin dissection for anal squamous cell carcinoma (cT3N3M0) with metastatic right inguinal lymph nodes and ipsilateral threatening of femoral vessels. A multi-specialty team was involved in the operation. A vascular and plastic surgeon performed the inguinal dissection with en bloc excision of the saphenous magna and a cuff of the femoral vein, while colorectal surgeons carried out the abdominoperineal excision. The 2 large tissue gaps at the groin and perineum were covered with an oblique rectus abdominis myocutaneous flap and a gluteal lotus flap, respectively. A partially absorbable mesh was placed at the level of the anterior sheath in order to reinforce the abdominal wall, whereas an absorbable mesh was used as a bridge for the dissected pelvic floor muscles. The post-operative period was uneventful and the follow-up at 5 months showed good results. CONCLUSIONS An early diagnosis along with new techniques of radiochemotherapy allow patients to preserve their sphincter function. However, a persistent or recurrent disease needs major operations, which often involve a complex reconstruction. Good team-work and experience in specialized fields give the opportunity to make the best choices to perform critical steps during the management of complex cases. PMID- 29339718 TI - Injury-activated glial cells promote wound healing of the adult skin in mice. AB - Cutaneous wound healing is a complex process that aims to re-establish the original structure of the skin and its functions. Among other disorders, peripheral neuropathies are known to severely impair wound healing capabilities of the skin, revealing the importance of skin innervation for proper repair. Here, we report that peripheral glia are crucially involved in this process. Using a mouse model of wound healing, combined with in vivo fate mapping, we show that injury activates peripheral glia by promoting de-differentiation, cell-cycle re-entry and dissemination of the cells into the wound bed. Moreover, injury activated glia upregulate the expression of many secreted factors previously associated with wound healing and promote myofibroblast differentiation by paracrine modulation of TGF-beta signalling. Accordingly, depletion of these cells impairs epithelial proliferation and wound closure through contraction, while their expansion promotes myofibroblast formation. Thus, injury-activated glia and/or their secretome might have therapeutic potential in human wound healing disorders. PMID- 29339719 TI - miR-181a-5p suppresses invasion and migration of HTR-8/SVneo cells by directly targeting IGF2BP2. AB - Pre-eclampsia is a pregnancy-related disease that may cause maternal, neonatal and fetal morbidity and mortality and exists in 3-5% of pregnancies worldwide. The discovery of dysregulated microRNAs and their roles in placental development has provided a new avenue for elucidating the mechanism involved in this pregnancy-specific disorder. Here, the roles of human miR-181a-5p, a microRNA that is increased in both the plasma and placenta of severe pre-eclamptic patients, in invasion and migration of trophoblasts were investigated. Ectopic expression of miR-181a-5p impaired the invasion and migration of HTR-8/SVneo cells, whereas miR-181a-5p inhibition had the opposite effects. IGF2BP2, which harbors a highly conserved miR-181a-5p-binding site within its 3'-UTR, was identified to be directly inhibited by miR-181a-5p. Moreover, siRNAs targeting IGF2BP2 imitated the effects of overexpressed miR-181a-5p on HTR-8/SVneo cell invasion and migration, whereas restoring IGF2BP2 expression by overexpressing a plasmid encoding IGF2BP2 partially reversed the studied inhibitory functions of miR-181a-5p. Thus, we demonstrated here that miR-181a-5p suppresses the invasion and migration of cytotrophoblasts, and its inhibitory effects were at least partially mediated by the suppression of IGF2BP2 expression, thus shedding new light on the roles of miR-181a-5p in the pathogenesis of severe pre-eclampsia. PMID- 29339720 TI - Plumbagin inhibits the proliferation and survival of esophageal cancer cells by blocking STAT3-PLK1-AKT signaling. AB - Esophageal squamous cell carcinoma (ESCC) is one of the deadliest cancers, and it requires novel treatment approaches and effective drugs. In the present study, we found that treatment with plumbagin, a natural compound, reduced proliferation and survival of the KYSE150 and KYSE450 ESCC cell lines in a dose-dependent manner in vitro. The drug also effectively inhibited the viability of primary ESCC cells from fresh biopsy specimens. Furthermore, plumbagin-induced mitotic arrest and massive apoptosis in ESCC cells. Notably, the drug significantly suppressed the colony formation capacity of ESCC cells in vitro and the growth of KYSE150 xenograft tumors in vivo. At the molecular level, we found that exposure to plumbagin decreased both polo-like kinase 1 (PLK1) and phosphorylated protein kinase B (p-AKT) expression in both ESCC cell lines. Enforced PLK1 expression in ESCC cells not only markedly rescued cells from plumbagin-induced apoptosis and proliferation inhibition but also restored the impaired AKT activity. Furthermore, signal transducer and activator of transcription 3 (STAT3), a transcription factor of PLK1, was also inactivated in plumbagin-treated ESCC cells; however, the overexpression of a constitutively activated STAT3 mutant, STAT3C, reinstated the plumbagin-elicited blockade of PLK1-AKT signaling in ESCC cells. Taken together, these findings indicate that plumbagin inhibits proliferation and potentiates apoptosis in human ESCC cells in vitro and in vivo. Plumbagin may exert these antitumor effects by abrogating STAT3-PLK1-AKT signaling, which suggests that plumbagin may be a novel, promising anticancer agent for the treatment of ESCC. PMID- 29339721 TI - Single-molecule FRET reveals multiscale chromatin dynamics modulated by HP1alpha. AB - The dynamic architecture of chromatin fibers, a key determinant of genome regulation, is poorly understood. Here, we employ multimodal single-molecule Forster resonance energy transfer studies to reveal structural states and their interconversion kinetics in chromatin fibers. We show that nucleosomes engage in short-lived (micro- to milliseconds) stacking interactions with one of their neighbors. This results in discrete tetranucleosome units with distinct interaction registers that interconvert within hundreds of milliseconds. Additionally, we find that dynamic chromatin architecture is modulated by the multivalent architectural protein heterochromatin protein 1alpha (HP1alpha), which engages methylated histone tails and thereby transiently stabilizes stacked nucleosomes. This compacted state nevertheless remains dynamic, exhibiting fluctuations on the timescale of HP1alpha residence times. Overall, this study reveals that exposure of internal DNA sites and nucleosome surfaces in chromatin fibers is governed by an intrinsic dynamic hierarchy from micro- to milliseconds, allowing the gene regulation machinery to access compact chromatin. PMID- 29339722 TI - The deep-subsurface sulfate reducer Desulfotomaculum kuznetsovii employs two methanol-degrading pathways. AB - Methanol is generally metabolized through a pathway initiated by a cobalamine containing methanol methyltransferase by anaerobic methylotrophs (such as methanogens and acetogens), or through oxidation to formaldehyde using a methanol dehydrogenase by aerobes. Methanol is an important substrate in deep-subsurface environments, where thermophilic sulfate-reducing bacteria of the genus Desulfotomaculum have key roles. Here, we study the methanol metabolism of Desulfotomaculum kuznetsovii strain 17T, isolated from a 3000-m deep geothermal water reservoir. We use proteomics to analyze cells grown with methanol and sulfate in the presence and absence of cobalt and vitamin B12. The results indicate the presence of two methanol-degrading pathways in D. kuznetsovii, a cobalt-dependent methanol methyltransferase and a cobalt-independent methanol dehydrogenase, which is further confirmed by stable isotope fractionation. This is the first report of a microorganism utilizing two distinct methanol conversion pathways. We hypothesize that this gives D. kuznetsovii a competitive advantage in its natural environment. PMID- 29339723 TI - Fasoracetam in adolescents with ADHD and glutamatergic gene network variants disrupting mGluR neurotransmitter signaling. AB - The glutamatergic neurotransmitter system may play an important role in attention deficit hyperactivity disorder (ADHD). This 5-week, open-label, single-blind, placebo-controlled study reports the safety, pharmacokinetics and responsiveness of the metabotropic glutamate receptor (mGluR) activator fasoracetam (NFC-1), in 30 adolescents, age 12-17 years with ADHD, harboring mutations in mGluR network genes. Mutation status was double-blinded. A single-dose pharmacokinetic profiling from 50-800 mg was followed by a single-blind placebo at week 1 and subsequent symptom-driven dose advancement up to 400 mg BID for 4 weeks. NFC-1 treatment resulted in significant improvement. Mean Clinical Global Impressions Improvement (CGI-I) and Severity (CGI-S) scores were, respectively, 3.79 at baseline vs. 2.33 at week 5 (P < 0.001) and 4.83 at baseline vs. 3.86 at week 5 (P < 0.001). Parental Vanderbilt scores showed significant improvement for subjects with mGluR Tier 1 variants (P < 0.035). There were no differences in the incidence of adverse events between placebo week and weeks on active drug. The trial is registered at https://clinicaltrials.gov/ct2/show/study/NCT02286817 . PMID- 29339724 TI - Granulocyte-colony stimulating factor controls neural and behavioral plasticity in response to cocaine. AB - Cocaine addiction is characterized by dysfunction in reward-related brain circuits, leading to maladaptive motivation to seek and take the drug. There are currently no clinically available pharmacotherapies to treat cocaine addiction. Through a broad screen of innate immune mediators, we identify granulocyte-colony stimulating factor (G-CSF) as a potent mediator of cocaine-induced adaptations. Here we report that G-CSF potentiates cocaine-induced increases in neural activity in the nucleus accumbens (NAc) and prefrontal cortex. In addition, G-CSF injections potentiate cocaine place preference and enhance motivation to self administer cocaine, while not affecting responses to natural rewards. Infusion of G-CSF neutralizing antibody into NAc blocks the ability of G-CSF to modulate cocaine's behavioral effects, providing a direct link between central G-CSF action in NAc and cocaine reward. These results demonstrate that manipulating G CSF is sufficient to alter the motivation for cocaine, but not natural rewards, providing a pharmacotherapeutic avenue to manipulate addictive behaviors without abuse potential. PMID- 29339725 TI - TGR5 signalling promotes mitochondrial fission and beige remodelling of white adipose tissue. AB - Remodelling of energy storing white fat into energy expending beige fat could be a promising strategy to reduce adiposity. Here, we show that the bile acid responsive membrane receptor TGR5 mediates beiging of the subcutaneous white adipose tissue (scWAT) under multiple environmental cues including cold exposure and prolonged high-fat diet feeding. Moreover, administration of TGR5-selective bile acid mimetics to thermoneutral housed mice leads to the appearance of beige adipocyte markers and increases mitochondrial content in the scWAT of Tgr5 +/+ mice but not in their Tgr5 -/- littermates. This phenotype is recapitulated in vitro in differentiated adipocytes, in which TGR5 activation increases free fatty acid availability through lipolysis, hence fuelling beta-oxidation and thermogenic activity. TGR5 signalling also induces mitochondrial fission through the ERK/DRP1 pathway, further improving mitochondrial respiration. Taken together, these data identify TGR5 as a druggable target to promote beiging with potential applications in the management of metabolic disorders. PMID- 29339726 TI - Publisher Correction: Identification and characterization of two functional variants in the human longevity gene FOXO3. AB - The original version of this Article contained an error in the spelling of the author Robert Hasler, which was incorrectly given as Robert Haesler. This has now been corrected in both the PDF and HTML versions of the Article. PMID- 29339727 TI - Analysis of criteria for treatment initiation in patients with progressive chronic lymphocytic leukemia. PMID- 29339728 TI - How BMP-2 induces EMT and breast cancer stemness through Rb and CD44? PMID- 29339729 TI - Ecotropic viral integration site 1 promotes metastasis independent of epithelial mesenchymal transition in colon cancer cells. AB - The most indecipherable component of solid cancer is the development of metastasis which accounts for more than 90% of cancer-related mortalities. A developmental program termed epithelial-mesenchymal transition (EMT) has also been shown to play a critical role in promoting metastasis in epithelium-derived solid tumors. By analyzing publicly available microarray datasets, we observed that ecotropic viral integration site 1 (EVI1) correlates negatively with SLUG, a master regulator of EMT. This correlation was found to be relevant as we demonstrated that EVI1 binds to SLUG promoter element directly through the distal set of zinc fingers and downregulates its expression. Many studies have shown that the primary role of SLUG during EMT and EMT-like processes is the regulation of cell motility in most of the cancer cells. Knockdown of EVI1 in metastatic colon cancer cell and subsequent passage through matrigel not only increased the invading capacity but also induced an EMT-like morphological feature of the cells, such as spindle-shaped appearance and led to a significant reduction in the expression of the epithelial marker, E-CADHERIN and increase in the expression of the mesenchymal marker, N-CADHERIN. The cells, when injected into immunocompromised mice, failed to show any metastatic foci in distant organs however the ones with EVI1, metastasized in the intraperitoneal layer and also showed multiple micro metastatic foci in the lungs and spleen. These findings suggest that in colon cancer EVI1 is dispensable for epithelial-mesenchymal transition, however, is required for metastasis. PMID- 29339730 TI - Mutational heterogeneity of angioimmunoblastic T-cell lymphoma indicates distinct lymphomagenic pathways. PMID- 29339731 TI - Electron affinity of liquid water. AB - Understanding redox and photochemical reactions in aqueous environments requires a precise knowledge of the ionization potential and electron affinity of liquid water. The former has been measured, but not the latter. We predict the electron affinity of liquid water and of its surface from first principles, coupling path integral molecular dynamics with ab initio potentials, and many-body perturbation theory. Our results for the surface (0.8 eV) agree well with recent pump-probe spectroscopy measurements on amorphous ice. Those for the bulk (0.1-0.3 eV) differ from several estimates adopted in the literature, which we critically revisit. We show that the ionization potential of the bulk and surface are almost identical; instead their electron affinities differ substantially, with the conduction band edge of the surface much deeper in energy than that of the bulk. We also discuss the significant impact of nuclear quantum effects on the fundamental gap and band edges of the liquid. PMID- 29339732 TI - Glyburide and retinoic acid synergize to promote wound healing by anti inflammation and RIP140 degradation. AB - Chronic inflammation underlies the development of metabolic diseases and individuals with metabolic disease often also suffer from delayed wound healing due to prolonged inflammation. Resolving inflammation provides a therapeutic strategy in treating metabolic diseases. We previously showed that during an anti inflammatory response when macrophages were alternatively (M2) polarized, retinoic acid (RA) dramatically activated arginase 1 gene (Arg1), a gene crucial for wound healing. Here we report that a widely used sulfonylurea drug for type 2 diabetes mellitus (T2DM), glyburide, enhances the anti-inflammatory response and synergizes with RA to promote wound healing. Our data also delineate the mechanism underlying glyburide's anti-inflammatory effect, which is to stimulate the degradation of a pro-inflammatory regulator, Receptor Interacting Protein 140 (RIP140), by activating Ca2+/calmodulin-dependent protein kinase II (CamKII) that triggers specific ubiquitination of RIP140 for degradation. By stimulating RIP140 degradation, glyburide enhances M2 polarization and anti-inflammation. Using a high-fat diet induced obesity mouse model to monitor wound healing effects, we provide a proof-of-concept for a therapeutic strategy that combining glyburide and RA can significantly improve wound healing. Mechanistically, this study uncovers a new mechanism of action of glyburide and a new pathway modulating RIP140 protein degradation that is mediated by CamKII signaling. PMID- 29339733 TI - Role of Macromolecular Crowding on the Intracellular Diffusion of DNA Binding Proteins. AB - Recent experiments suggest that cellular crowding facilitates the target search dynamics of proteins on DNA, the mechanism of which is not yet known. By using large scale computer simulations, we show that two competing factors, namely the width of the depletion layer that separates the crowder cloud from the DNA molecule and the degree of protein-crowder crosstalk, act in harmony to affect the target search dynamics of proteins. The impacts vary from nonspecific to specific target search regime. During a nonspecific search, dynamics of a protein is only minimally affected, whereas, a significantly different behaviour is observed when the protein starts forming a specific protein-DNA complex. We also find that the severity of impacts largely depends upon physiological crowder concentration and deviation from it leads to attenuation in the binding kinetics. Based on extensive kinetic study and binding energy landscape analysis, we further present a comprehensive molecular description of the search process that allows us to interpret the experimental findings. PMID- 29339734 TI - Au@Nb@H x K1-xNbO3 nanopeapods with near-infrared active plasmonic hot-electron injection for water splitting. AB - Full-spectrum utilization of diffusive solar energy by a photocatalyst for environmental remediation and fuel generation has long been pursued. In contrast to tremendous efforts in the UV-to-VIS light regime of the solar spectrum, the NIR and IR areas have been barely addressed although they represent about 50% of the solar flux. Here we put forward a biomimetic photocatalyst blueprint that emulates the growth pattern of a natural plant-a peapod-to address this issue. This design is exemplified via unidirectionally seeding core-shell Au@Nb nanoparticles in the cavity of semiconducting H x K1-xNbO3 nanoscrolls. The biomimicry of this nanopeapod (NPP) configuration promotes near-field plasmon plasmon coupling between bimetallic Au@Nb nanoantennas (the peas), endowing the UV-active H x K1-xNbO3 semiconductor (the pods) with strong VIS and NIR light harvesting abilities. Moreover, the characteristic 3D metal-semiconductor junction of the Au@Nb@H x K1-xNbO3 NPPs favors the transfer of plasmonic hot carriers to trigger dye photodegradation and water photoelectrolysis as proofs-of concept. Such broadband solar spectral response renders the Au@Nb@H x K1-xNbO3 NPPs highly promising for widespread photoactive devices. PMID- 29339735 TI - Phenotype and Functional Features of Human Telomerase Reverse Transcriptase Immortalized Human Airway Smooth Muscle Cells from Asthmatic and Non-Asthmatic Donors. AB - Asthma is an obstructive respiratory disease characterised by chronic inflammation with airway hyperresponsiveness. In asthmatic airways, there is an increase in airway smooth muscle (ASM) cell bulk, which differs from non asthmatic ASM in characteristics. This study aimed to assess the usefulness of hTERT immortalisation of human ASM cells as a research tool. Specifically we compared proliferative capacity, inflammatory mediator release and extracellular matrix (ECM) production in hTERT immortalised and parent primary ASM cells from asthmatic and non-asthmatic donors. Our studies revealed no significant differences in proliferation, IL-6 and eotaxin-1 production, or CTGF synthesis between donor-matched parent and hTERT immortalised ASM cell lines. However, deposition of ECM proteins fibronectin and fibulin-1 was significantly lower in immortalised ASM cells compared to corresponding primary cells. Notably, previously reported differences in proliferation and inflammatory mediator release between asthmatic and non-asthmatic ASM cells were retained, but excessive ECM protein deposition in asthmatic ASM cells was lost in hTERT ASM cells. This study shows that hTERT immortalised ASM cells mirror primary ASM cells in proliferation and inflammatory profile characteristics. Moreover, we demonstrate both strengths and weaknesses of this immortalised cell model as a representation of primary ASM cells for future asthma pathophysiological research. PMID- 29339736 TI - Groups clapping in unison undergo size-dependent error-induced frequency increase. AB - Humans clapping together in unison is a familiar and robust example of emergent synchrony. We find that in experiments, such groups (from two to a few hundred) always increase clapping frequency, and larger groups increase more quickly. Based on single-person experiments and modeling, an individual tendency to rush is ruled out as an explanation. Instead, an asymmetric sensitivity in aural interactions explains the frequency increase, whereby individuals correct more strongly to match neighbour claps that precede their own clap, than those that follow it. A simple conceptual coupled oscillator model based on this interaction recovers the main features observed in experiments, and shows that the collective frequency increase is driven by the small timing errors in individuals, and the resulting inter-individual interactions that occur to maintain unison. PMID- 29339737 TI - Breakdown of Kasha's Rule in a Ubiquitous, Naturally Occurring, Wide Bandgap Aluminosilicate (Feldspar). AB - Excitation-energy-dependent emission (EDE) is well known from photoluminescence (PL) studies of polar solvents and carbon-based nanostructures. In polar solvents, this effect known as the 'red edge effect' (REE) is understood to arise from solute-solvent interactions, whereas, in case of carbon-based nanostructures, the origin is highly debated. Understanding this effect has important bearings on the potential applications of these materials. EDE has never been reported from large crystalline materials, except very recently by our group. Here, we make detailed investigations to understand the universality and the mechanism behind the EDE in a wide band gap aluminosilicate (feldspar), which comprises more than half of the Earth's crust, and is widely used in geophotonics (e.g., optical dating). We observe EDE up to 150 nm at room temperature in our samples, which is unprecedented in rigid macroscopic structures. Based on PL investigations at 295 K and 7 K, we present a novel model that is based on photoionisation of a deep lying defect and subsequent transport/relaxation of free electrons in the sub-conduction band tail states. Our model has important implications for potential photonic applications using feldspar, measurement of band tail width in wide bandgap materials, and understanding the EDE effect in other materials. PMID- 29339738 TI - DNA methyltransferase inhibition upregulates MHC-I to potentiate cytotoxic T lymphocyte responses in breast cancer. AB - Potentiating anti-tumor immunity by inducing tumor inflammation and T cell mediated responses are a promising area of cancer therapy. Immunomodulatory agents that promote these effects function via a wide variety of mechanisms, including upregulation of antigen presentation pathways. Here, we show that major histocompatibility class-I (MHC-I) genes are methylated in human breast cancers, suppressing their expression. Treatment of breast cancer cell lines with a next generation hypomethylating agent, guadecitabine, upregulates MHC-I expression in response to interferon-gamma. In murine tumor models of breast cancer, guadecitabine upregulates MHC-I in tumor cells promoting recruitment of CD8+ T cells to the microenvironment. Finally, we show that MHC-I genes are upregulated in breast cancer patients treated with hypomethylating agents. Thus, the immunomodulatory effects of hypomethylating agents likely involve upregulation of class-I antigen presentation to potentiate CD8+ T cell responses. These strategies may be useful to potentiate anti-tumor immunity and responses to checkpoint inhibition in immune-refractory breast cancers. PMID- 29339740 TI - Understanding turbulent free-surface vortex flows using a Taylor-Couette flow analogy. AB - Free-surface vortices have long been studied to develop an understanding of similar rotating flow phenomena observed in nature and technology. However, a complete description of its turbulent three-dimensional flow field still remains elusive. In contrast, the related Taylor-Couette flow system has been well explicated which classically exhibits successive instability phases manifested in so-called Taylor vortices. In this study, observations made on the turbulent free surface vortex revealed distinguishable, time-dependent "Taylor-like" vortices in the secondary flow field similar to the Taylor-Couette flow system. The observations were enabled by an original application of 2D ultrasonic Doppler velocity profiling complemented with laser induced fluorescence dye observations. Additional confirmation was provided by three-dimensional numerical simulations. Using Rayleigh's stability criterion, we analytically show that a wall bounded free-surface vortex can indeed become unstable due to a centrifugal driving force in a similar manner to the Taylor-Couette flow. Consequently, it is proposed that the free-surface vortex can be treated analogously to the Taylor-Couette flow permitting advanced conclusions to be drawn on its flow structure and the various states of free-surface vortex flow stability. PMID- 29339739 TI - Newborn screening of glucose-6-phosphate dehydrogenase deficiency in Guangxi, China: determination of optimal cutoff value to identify heterozygous female neonates. AB - The aim of this study is to assess the disease incidence and mutation spectrum of glucose-6-phosphate dehydrogenase (G6PD) deficiency in Guangxi, China, and to determine an optimal cutoff value to identify heterozygous female neonates. A total of 130, 635 neonates were screened from the year of 2013 to 2017. Neonates suspected for G6PD deficiency were further analyzed by quantitatively enzymatic assay and G6PD mutation analysis. The overall incidence of G6PD deficiency was 7.28%. A total of 14 G6PD mutations were identified, and different mutations lead to varying levels of G6PD enzymatic activities. The best cut-off value of G6PD activity in male subjects is 2.2 U/g Hb, same as conventional setting. In female population, however, the cut-off value is found to be 2.8 U/g Hb (sensitivity: 97.5%, specificity: 87.7%, AUC: 0.964) to best discriminate between normal and heterozygotes, and 1.6 U/g Hb (sensitivity: 82.2%, specificity: 85.9%, AUC: 0.871) between heterozygotes and deficient subjects. In conclusion, we have conducted a comprehensive newborn screening of G6PD deficiency in a large cohort of population from Guangxi, China, and first established a reliable cut-off value of G6PD activity to distinguish heterozygous females from either normal or deficient subjects. PMID- 29339741 TI - Mesoscale Dzyaloshinskii-Moriya interaction: geometrical tailoring of the magnetochirality. AB - Crystals with broken inversion symmetry can host fundamentally appealing and technologically relevant periodical or localized chiral magnetic textures. The type of the texture as well as its magnetochiral properties are determined by the intrinsic Dzyaloshinskii-Moriya interaction (DMI), which is a material property and can hardly be changed. Here we put forth a method to create new artificial chiral nanoscale objects with tunable magnetochiral properties from standard magnetic materials by using geometrical manipulations. We introduce a mesoscale Dzyaloshinskii-Moriya interaction that combines the intrinsic spin-orbit and extrinsic curvature-driven DMI terms and depends both on the material and geometrical parameters. The vector of the mesoscale DMI determines magnetochiral properties of any curved magnetic system with broken inversion symmetry. The strength and orientation of this vector can be changed by properly choosing the geometry. For a specific example of nanosized magnetic helix, the same material system with different geometrical parameters can acquire one of three zero temperature magnetic phases, namely, phase with a quasitangential magnetization state, phase with a periodical state and one intermediate phase with a periodical domain wall state. Our approach paves the way towards the realization of a new class of nanoscale spintronic and spinorbitronic devices with the geometrically tunable magnetochirality. PMID- 29339742 TI - SLAF-based high-density genetic map construction and QTL mapping for major economic traits in sea urchin Strongylocentrotus intermedius. AB - Sea urchin (Strongylocentrotus intermedius) has long been a model species for developmental and evolutionary research, but only a few studies have focused on gene mapping. Here, we reported a high-density genetic map containing 4,387 polymorphism specific-length amplified fragment (SLAF) markers spanning 21 linkage groups (LG) for sea urchin. Based on this genetic map and phenotyping data for eight economic traits, 33 potentially significant QTLs were detected on ten different LGs with explanations ranging from 9.90% to 46.30%, partly including 10 QTLs for test diameter, six QTLs for body weight and eight QTLs for Aristotle's lantern weight. Moreover, we found a QTL enrichment LG, LG15, gathering QTLs for test diameter, body weight, gonad weight, light orange-yellow color difference (>=E1) and light yellow color difference (>=E2). Among all QTLs, we genotyped four QTLs for test diameter, Aristotle's lantern weight and body weight using High Resolution Melting (HRM) technology. Finally, we used the verified SNP marker (detected using SLAF sequencing) to explore their marker assisted selection (MAS) breeding application potential and found that SNP-29 associated tightly with body weight and that heterozygous genotype was a dominant genotype, indicating that SNP-29 was a promising marker for MAS. PMID- 29339743 TI - A deep study of the protection of Lithium Cobalt Oxide with polymer surface modification at 4.5 V high voltage. AB - Charging the cells above a conventional voltage of 4.2 V is a promising attempt to increase the energy density of Lithium Cobalt Oxide (LCO), however, the problem of crystal instability at high voltage that leading deterioration of cycle performance needs to be urgently resolved. In this work, as an effective and easy approach to improve the cycle performance and crystal stability of LCO cycling at 4.5 V high voltage, we demonstrate direct surface modification of a LCO cathode by poly [N,N-bis(2-cryano-ethyl)-acrylamide]. The results of SEM, TEM and XRD all indicate that the crystal structure of polymer coating LCO remains unchanged after cycling at 4.5 V high voltage for 60 times. Furthermore, the XPS study of valence of cobalt on the surface of LCO demonstrates that cobaltic ion of polymer coating LCO can be reduced to cobaltous ion after charging the cell. Thus, the activity of the crystal surface can be weakened, as a result, the stability is improved, leading to the performance improvement. PMID- 29339744 TI - Human caspase-4 detects tetra-acylated LPS and cytosolic Francisella and functions differently from murine caspase-11. AB - Caspase-4/5 in humans and caspase-11 in mice bind hexa-acylated lipid A, the lipid moeity of lipopolysaccharide (LPS), to induce the activation of non canonical inflammasome. Pathogens such as Francisella novicida express an under acylated lipid A and escape caspase-11 recognition in mice. Here, we show that caspase-4 drives inflammasome responses to F. novicida infection in human macrophages. Caspase-4 triggers F. novicida-mediated, gasdermin D-dependent pyroptosis and activates the NLRP3 inflammasome. Inflammasome activation could be recapitulated by transfection of under-acylated LPS from different bacterial species or synthetic tetra-acylated lipid A into cytosol of human macrophage. Our results indicate functional differences between human caspase-4 and murine caspase-11. We further establish that human Guanylate-binding proteins promote inflammasome responses to under-acylated LPS. Altogether, our data demonstrate a broader reactivity of caspase-4 to under-acylated LPS than caspase-11, which may have important clinical implications for management of sepsis. PMID- 29339746 TI - Zika Virus in Salivary Glands of Five Different Species of Wild-Caught Mosquitoes from Mexico. AB - Zika virus (ZIKV) is a mosquito-borne pathogen, and Aedes aegypti has been identified as the main vector of the disease. Other mosquito species in the Aedes and Culex genera have been suggested to have the potential for being competent vectors based on experimental exposition of mosquitoes to an infectious blood meal containing ZIKV. Here, we report the isolation in cell culture of ZIKV obtained from different body parts of wild-caught female mosquitoes (Ae. aegypti, Ae. vexans, Cx. quinquefasciatus, Cx. coronator, and Cx. tarsalis) and whole male mosquitoes (Ae. aegypti and Cx. quinquefasciatus) in Mexico. Importantly, this is the first report that shows the presence of the virus in the salivary glands of the wild-caught female mosquitoes species, Cx. coronator, Cx. tarsalis, and Ae. vexans. Our findings strongly suggest that all the species reported herein are potential vectors for ZIKV. PMID- 29339745 TI - Genomic and transcriptomic analysis of the Asian honeybee Apis cerana provides novel insights into honeybee biology. AB - The Asian honeybee Apis cerana is one of two bee species that have been commercially kept with immense economic value. Here we present the analysis of genomic sequence and transcriptomic exploration for A. cerana as well as the comparative genomic analysis of the Asian honeybee and the European honeybee A. mellifera. The genome and RNA-seq data yield new insights into the behavioral and physiological resistance to the parasitic mite Varroa the evolution of antimicrobial peptides, and the genetic basis for labor division in A. cerana. Comparison of genes between the two sister species revealed genes specific to A. cerana, 54.5% of which have no homology to any known proteins. The observation that A. cerana displayed significantly more vigilant grooming behaviors to the presence of Varroa than A. mellifera in conjunction with gene expression analysis suggests that parasite-defensive grooming in A. cerana is likely triggered not only by exogenous stimuli through visual and olfactory detection of the parasite, but also by genetically endogenous processes that periodically activates a bout of grooming to remove the ectoparasite. This information provides a valuable platform to facilitate the traits unique to A. cerana as well as those shared with other social bees for health improvement. PMID- 29339747 TI - An orthotopic mouse model of gastric cancer invasion and metastasis. AB - Gastric cancer is a leading cause of cancer death worldwide, with advanced stage being correlated to the level of tumour invasion and metastasis. Current research is heavily focused on the identification and development of efficacious therapeutics targeting these fundamental hallmarks of cancer, however there are currently no animal models that mimic the invasive phenotypes observed in humans. To address this we have developed an orthotopic mouse model whereby gastric cancer cell lines are tagged with luciferase and injected into the subserosal layer of the stomach. This allows for the monitoring of primary tumour growth and metastasis in real-time as well as quantitation of the degree of tumour invasion through the stomach wall by immunohistochemistry. We have three models based on the degree of invasion and metastasis that are cell line specific: The AGS cells develop into invasive tumours by 4-weeks with no evidence of metastases, MKN45 cells are moderately metastatic with minimal invasion till week 2 and MKN28 cells are highly metastatic and fully invasive by week 1. These models have utility as a tool for testing the efficacy of anti-tumour, anti-invasive and anti-metastatic therapies in the setting of gastric cancer, which currently has poor treatment options. PMID- 29339748 TI - Dot1 regulates nucleosome dynamics by its inherent histone chaperone activity in yeast. AB - Dot1 (disruptor of telomeric silencing-1, DOT1L in humans) is the only known enzyme responsible for histone H3 lysine 79 methylation (H3K79me) and is evolutionarily conserved in most eukaryotes. Yeast Dot1p lacks a SET domain and does not methylate free histones and thus may have different actions with respect to other histone methyltransferases. Here we show that Dot1p displays histone chaperone activity and regulates nucleosome dynamics via histone exchange in yeast. We show that a methylation-independent function of Dot1p is required for the cryptic transcription within transcribed regions seen following disruption of the Set2-Rpd3S pathway. Dot1p can assemble core histones to nucleosomes and facilitate ATP-dependent chromatin-remodeling activity through its nucleosome binding domain, in vitro. Global analysis indicates that Dot1p appears to be particularly important for histone exchange and chromatin accessibility on the transcribed regions of long-length genes. Our findings collectively suggest that Dot1p-mediated histone chaperone activity controls nucleosome dynamics in transcribed regions. PMID- 29339749 TI - Volatile molecules from bronchoalveolar lavage fluid can 'rule-in' Pseudomonas aeruginosa and 'rule-out' Staphylococcus aureus infections in cystic fibrosis patients. AB - Respiratory infections caused by Pseudomonas aeruginosa and Staphylococcus aureus are the leading cause of morbidity and mortality in cystic fibrosis (CF) patients. The authors aimed to identify volatile biomarkers from bronchoalveolar lavage (BAL) samples that can guide breath biomarker development for pathogen identification. BAL samples (n = 154) from CF patients were analyzed using two dimensional gas chromatography time-of-flight mass spectrometry. Random Forest was used to select suites of volatiles for identifying P. aeruginosa-positive and S. aureus-positive samples using multiple infection scenarios and validated using test sets. Using nine volatile molecules, we differentiated P. aeruginosa positive (n = 7) from P. aeruginosa-negative (n = 53) samples with an area under the receiver operating characteristic curve (AUROC) of 0.86 (95% CI 0.71-1.00) and with positive and negative predictive values of 0.67 (95% CI 0.38-0.75) and 0.92 (95% CI 0.88-1.00), respectively. We were also able to discriminate S. aureus-positive (n = 15) from S. aureus-negative (n = 45) samples with an AUROC of 0.88 (95% CI 0.79-1.00) using eight volatiles and with positive and negative predictive values of 0.86 (95% CI 0.61-0.96) and 0.70 (95% CI 0.61-0.75), respectively. Prospective validation of identified biomarkers as screening tools in patient breath may lead to clinical application. PMID- 29339750 TI - A Single Dose of Modified Vaccinia Ankara expressing Ebola Virus Like Particles Protects Nonhuman Primates from Lethal Ebola Virus Challenge. AB - Ebola virus (EBOV), isolate Makona, was the causative agent of the West African epidemic devastating predominantly Guinea, Liberia and Sierra Leone from 2013 2016. While several experimental vaccine and treatment approaches have been accelerated through human clinical trials, there is still no approved countermeasure available against this disease. Here, we report the construction and preclinical efficacy testing of a novel recombinant modified vaccinia Ankara (MVA)-based vaccine expressing the EBOV-Makona glycoprotein GP and matrix protein VP40 (MVA-EBOV). GP and VP40 form EBOV-like particles and elicit protective immune responses. In this study, we report 100% protection against lethal EBOV infection in guinea pigs after prime/boost vaccination with MVA-EBOV. Furthermore, this MVA-EBOV protected macaques from lethal disease after a single dose or prime/boost vaccination. The vaccine elicited a variety of antibody responses to both antigens, including neutralizing antibodies and antibodies with antibody-dependent cellular cytotoxic activity specific for GP. This is the first report that a replication-deficient MVA vector can confer full protection against lethal EBOV challenge after a single dose vaccination in macaques. PMID- 29339751 TI - JmjC domain proteins modulate circadian behaviors and sleep in Drosophila. AB - Jumonji (JmjC) domain proteins are known regulators of gene expression and chromatin organization by way of histone demethylation. Chromatin modification and remodeling provides a means to modulate the activity of large numbers of genes, but the importance of this class of predicted histone-modifying enzymes for different aspects of post-developmental processes remains poorly understood. Here we test the function of all 11 non-lethal members in the regulation of circadian rhythms and sleep. We find loss of every Drosophila JmjC gene affects different aspects of circadian behavior and sleep in a specific manner. Together these findings suggest that the majority of JmjC proteins function as regulators of behavior, rather than controlling essential developmental programs. PMID- 29339752 TI - Prognostic Performance of Ten Liver Function Models in Patients with Hepatocellular Carcinoma Undergoing Radiofrequency Ablation. AB - Liver functional capacity is a crucial survival determinant for hepatocellular carcinoma (HCC). Noninvasive models were proposed to assess hepatic reserve, but their performance in outcome prediction is unclear. We aimed to investigate 10 currently used liver function models in HCC patients undergoing radiofrequency ablation (RFA). A total 499 HCC patients were prospectively identified. Homogeneity and corrected Akaike information criteria (AICc) were compared. Cox proportional hazards model was used to identify independent survival predictors. Significance survival differences were found across 10 noninvasive models (all p < 0.001) except for GUCI and APRI grade 2 vs 3, and King's score grade 1 vs 2. Among these models, ALBI grade showed the highest homogeneity and lowest AICs value, indicating a better prognostic performance. Within Child-Turcotte-Pugh (CTP) score 5 group, significant survival difference was demonstrated between ALBI grade 1 and 2 (p < 0.001); for those with CTP score 6 or higher, only ALBI grade 2 and 3 showed survival difference (p < 0.001). Cox analysis disclosed that ALBI grade, tumor size and performance status were independent prognostic predictors. There was significant correlation between CTP score and other 9 models. We conclude that ALBI grade may serve as objective and feasible surrogate for prognostic prediction in HCC patients undergoing RFA. PMID- 29339753 TI - Efficient isolation on Vero.DogSLAMtag cells and full genome characterization of Dolphin Morbillivirus (DMV) by next generation sequencing. AB - The Dolphin Morbillivirus (DMV) genome from the first Mediterranean epidemic (1990-'92) is the only cetacean Morbillivirus that has been completely sequenced. Here, we report the first application of next generation sequencing (NGS) to morbillivirus infection of aquatic mammals. A viral isolate, representative of the 2006-'08 Mediterranean epidemic (DMV_IZSPLV_2008), efficiently grew on Vero.DogSLAMtag cells and was submitted to whole genome characterization by NGS. The final genome length was 15,673 nucleotides, covering 99.82% of the DMV reference genome. Comparison of DMV_IZSPLV_2008 and 1990-'92 DMV strain sequences revealed 157 nucleotide mutations and 47 amino acid changes. The sequence similarity was 98.7% at the full genome level. Whole-genome phylogeny suggested that the DMV strain circulating during the 2006-'08 epidemics emerged from the 1990-'92 DMV strain. Viral isolation is considered the "gold standard" for morbillivirus diagnostics but efficient propagation of infectious virus is difficult to achieve. The successful cell replication of this strain allowed performing NGS directly from the viral RNA, without prior PCR amplification. We therefore provide to the scientific community a second DMV genome, representative of another major outbreak. Interestingly, genome comparison revealed that the neglected L gene encompasses 74% of the genetic diversity and might serve as "hypervariable" target for strain characterization. PMID- 29339754 TI - Baicalin modulates NF-kappaB and NLRP3 inflammasome signaling in porcine aortic vascular endothelial cells Infected by Haemophilus parasuis Causing Glasser's disease. AB - Haemophilus parasuis (H. parasuis) can cause vascular inflammatory injury, but the molecular basis of this effect remains unclear. In this study,we investigated the effect of the anti-inflammatory, anti-microbial and anti-oxidant agent, baicalin, on the nuclear factor (NF)-kappaB and NLRP3 inflammasome signaling pathway in pig primary aortic vascular endothelial cells. Activation of the NF kappaB and NLRP3 inflammasome signaling pathway was induced in H. parasuis infected cells. However, baicalin reduced the production of reactive oxygen species, apoptosis, and activation of the NF-kappaB and NLRP3 inflammasome signaling pathway in infected cells. These results revealed that baicalin can inhibit H. parasuis-induced inflammatory responses in porcine aortic vascular endothelial cells, and may thus offer a novel strategy for controlling and treating H. parasuis infection. Furthermore, the results suggest that piglet primary aortic vascular endothelial cells may provide an experimental model for future studies of H. parasuis infection. PMID- 29339755 TI - A prebiotic template-directed peptide synthesis based on amyloids. AB - The prebiotic replication of information-coding molecules is a central problem concerning life's origins. Here, we report that amyloids composed of short peptides can direct the sequence-selective, regioselective and stereoselective condensation of amino acids. The addition of activated DL-arginine and DL phenylalanine to the peptide RFRFR-NH2 in the presence of the complementary template peptide Ac-FEFEFEFE-NH2 yields the isotactic product FRFRFRFR-NH2, 1 of 64 possible triple addition products, under conditions in which the absence of template yields only single and double additions of mixed stereochemistry. The templating mechanism appears to be general in that a different amyloid formed by (Orn)V(Orn)V(Orn)V(Orn)V-NH2 and Ac-VDVDVDVDV-NH2 is regioselective and stereoselective for N-terminal, L-amino-acid addition while the ornithine-valine peptide alone yields predominantly sidechain condensation products with little stereoselectivity. Furthermore, the templating reaction is stable over a wide range of pH (5.6-8.6), salt concentration (0-4 M NaCl), and temperature (25-90 degrees C), making the amyloid an attractive model for a prebiotic peptide replicating system. PMID- 29339756 TI - Shot-by-shot characterization of focused X-ray free electron laser pulses. AB - X-ray free electron lasers (XFEL) provide intense and almost coherent X-ray pulses. They are used for various experiments investigating physical and chemical properties in materials and biological science because of their complete coherence, high intensity, and very short pulse width. In XFEL experiments, specimens are irradiated by XFEL pulses focused by mirror optics. The focused pulse is too intense to measure its coherence by placing an X-ray detector on the focal spot. Previously, a method was proposed for evaluating the coherence of focused pulses from the visibility of the diffraction intensity of colloidal particles by the speckle visibility spectroscopy (SVS). However, the visibility cannot be determined exactly because the diffraction intensity is integrated into each finite size detector pixel. Here, we propose a method to evaluate the coherence of each XFEL pulse by using SVS in combination with a theory for exact sampling of the diffraction pattern and a technique of multiplying the diffraction data by a Gaussian masks, which reduces the influence of data missing in small-angle regions due to the presence of a direct beamstop. We also introduce a method for characterizing the shot-by-shot size of each XFEL pulse by analysing the X-ray irradiated area. PMID- 29339757 TI - Melatonin increases chilling tolerance in postharvest peach fruit by alleviating oxidative damage. AB - Melatonin has been reported to alleviate chilling symptoms in postharvest peach fruit during cold storage, however, the mechanism involved is largely unknown. To better understand its role in chilling tolerance, here we investigated the effects of melatonin on oxidative damage in peach fruit subjected to chilling after harvest. Chilling injury of peaches was dramatically reduced by melatonin treatment. Melatonin induced hydrogen peroxide (H2O2) content at the early stage of storage but inhibited its accumulation thereafter. Meanwhile, melatonin also up-regulated the expression of genes involved in antioxidant responses in peaches. In addition, compared to the control fruit, peaches treated with melatonin displayed higher transcript abundance of ascorbic acid (AsA) biosynthetic genes and consequently increased the AsA content. Our results suggested that in response to melatonin during chilling, the high H2O2 level in the treated peaches at the initial time of storage, may work as a signaling molecule to induce protective mechanisms via up-regulating the expression of antioxidative genes and increasing AsA content. On the other hand, after the transient increase in the treated peaches, H2O2 was efficiently removed because of the activated antioxidant systems, which was associated with the higher chilling tolerance induced by melatonin. PMID- 29339758 TI - MiRNA-seq-based profiles of miRNAs in mulberry phloem sap provide insight into the pathogenic mechanisms of mulberry yellow dwarf disease. AB - A wide range of miRNAs have been identified as phloem-mobile molecules that play important roles in coordinating plant development and physiology. Phytoplasmas are associated with hundreds of plant diseases, and the pathogenesis involved in the interactions between phytoplasmas and plants is still poorly understood. To analyse the molecular mechanisms of phytoplasma pathogenicity, the miRNAs profiles in mulberry phloem saps were examined in response to phytoplasma infection. A total of 86 conserved miRNAs and 19 novel miRNAs were identified, and 30 conserved miRNAs and 13 novel miRNAs were differentially expressed upon infection with phytoplasmas. The target genes of the differentially expressed miRNAs are involved in diverse signalling pathways showing the complex interactions between mulberry and phytoplasma. Interestingly, we found that mul miR482a-5p was up-regulated in the infected phloem saps, and grafting experiments showed that it can be transported from scions to rootstock. Based on the results, the complexity and roles of the miRNAs in phloem sap and the potential molecular mechanisms of their changes were discussed. It is likely that the phytoplasma responsive miRNAs in the phloem sap modulate multiple pathways and work cooperatively in response to phytoplasma infection, and their expression changes may be responsible for some symptoms in the infected plants. PMID- 29339759 TI - Optimized chaotic Brillouin dynamic grating with filtered optical feedback. AB - Chaotic Brillouin dynamic gratings (BDGs) have special advantages such as the creation of single, permanent and localized BDG. However, the periodic signals induced by conventional optical feedback (COF) in chaotic semiconductor lasers can lead to the generation of spurious BDGs, which will limit the application of chaotic BDGs. In this paper, filtered optical feedback (FOF) is proposed to eliminate spurious BDGs. By controlling the spectral width of the optical filter and its detuning from the laser frequency, semiconductor lasers with FOF operate in the suppression region of the time-delay signature, and chaotic outputs serving as pump waves are then utilized to generate the chaotic BDG in a polarization maintaining fiber. Through comparative analysis of the COF and FOF schemes, it has been demonstrated that spurious BDGs are effectively eliminated and that the reflection characterization of the chaotic BDG is improved. The influence of FOF on the reflection and gain spectra of the chaotic BDG is analyzed as well. PMID- 29339760 TI - Biochemical and genetic characterization of a novel metallo-beta-lactamase from marine bacterium Erythrobacter litoralis HTCC 2594. AB - Metallo-beta-lactamases (MBLs) are a group of enzymes that can inactivate most commonly used beta-lactam-based antibiotics. Among MBLs, New Delhi metallo-beta lactamase-1 (NDM-1) constitutes an urgent threat to public health as evidenced by its success in rapidly disseminating worldwide since its first discovery. Here we report the biochemical and genetic characteristics of a novel MBL, ElBla2, from the marine bacterium Erythrobacter litoralis HTCC 2594. This enzyme has a higher amino acid sequence similarity to NDM-1 (56%) than any previously reported MBL. Enzymatic assays and secondary structure alignment also confirmed the high similarity between these two enzymes. Whole genome comparison of four Erythrobacter species showed that genes located upstream and downstream of elbla2 were highly conserved, which may indicate that elbla2 was lost during evolution. Furthermore, we predicted two prophages, 13 genomic islands and 25 open reading frames related to insertion sequences in the genome of E. litoralis HTCC 2594. However, unlike NDM-1, the chromosome encoded ElBla2 did not locate in or near these mobile genetic elements, indicating that it cannot transfer between strains. Finally, following our phylogenetic analysis, we suggest a reclassification of E. litoralis HTCC 2594 as a novel species: Erythrobacter sp. HTCC 2594. PMID- 29339761 TI - New virulence factor CSK29544_02616 as LpxA binding partner in Cronobacter sakazakii. AB - Cronobacter sakazakii is an opportunistic pathogen that can cause meningitis and necrotizing enterocolitis in premature infants, but its virulence determinants remain largely unknown. In this study, a transposon-mediated random-mutant library of C. sakazakii was used to identify new virulence factors. Compared to wild-type bacteria, a mutant lacking CSK29544_02616 (referred to as labp) was defective in invasion into intestinal epithelial cells (by at least 1000-fold) and showed less phagocytosis by macrophages (by at least 50-fold). The lack of labp in C. sakazakii changed the profile of outer membrane proteins, decreased the production of lipopolysaccharides, and increased the production of membrane phospholipids. Bacterial physiological characteristics including surface hydrophobicity and motility were also altered in the absence of labp, presumably because of changes in the bacterial-envelope structure. To systematically determine the role of labp, ligand fishing was conducted using Labp as a bait, which revealed LpxA as a binding partner of Labp. LpxA is UDP-N-acetylglucosamine (GlcNAc) acyltransferase, the first enzyme in the pathway of lipid A biosynthesis. Labp increased the enzymatic activity of LpxA without influencing lpxA expression. Considering multifaceted roles of lipopolysaccharides in virulence regulation, Labp is a novel virulence factor that promotes the production of lipid A by LpxA in Cronobacter. PMID- 29339764 TI - Four-dimensional entanglement distribution over 100 km. AB - High-dimensional quantum entanglement can enrich the functionality of quantum information processing. For example, it can enhance the channel capacity for linear optic superdense coding and decrease the error rate threshold of quantum key distribution. Long-distance distribution of a high-dimensional entanglement is essential for such advanced quantum communications over a communications network. Here, we show a long-distance distribution of a four-dimensional entanglement. We employ time-bin entanglement, which is suitable for a fibre transmission, and implement scalable measurements for the high-dimensional entanglement using cascaded Mach-Zehnder interferometers. We observe that a pair of time-bin entangled photons has more than 1 bit of secure information capacity over 100 km. Our work constitutes an important step towards secure and dense quantum communications in a large Hilbert space. PMID- 29339762 TI - Supra-pharmacological concentration of capsaicin stimulates brown adipogenesis through induction of endoplasmic reticulum stress. AB - We previously showed that brown (pre)adipocytes express Trpv1, a capsaicin receptor, and that capsaicin stimulates differentiation of brown preadipocytes in the late stages of brown adipogenesis. The present study revealed that treatment with 100 MUM capsaicin stimulates brown adipogenesis by inducing endoplasmic reticulum (ER) stress. Treatment with capsaicin (100 MUM) during brown adipogenesis enhanced lipid accumulation and the expression of Ucp1, a gene selectively expressed in brown adipocytes. Capsaicin treatment also caused an increase in the cytosolic calcium concentration even when extracellular calcium was removed. I-RTX, a Trpv1 inhibitor, did not modulate the increase in cytosolic calcium concentration, lipid accumulation or Ucp1 expression. Previous studies revealed that the release of calcium from the ER induces ER stress, leading to the conversion of X-box binding protein 1 (Xbp1) pre-mRNA to spliced Xbp1 (sXbp1) as well as the up-regulation of Chop expression. Capsaicin treatment increased the expression of sXbp1 and Chop in brown preadipocytes and did not enhance lipid accumulation or Ucp1 expression in Xbp1 knockdown cells. The present results describe a novel mechanism of brown adipogenesis regulation via ER stress that is induced by a supra-pharmacological concentration of capsaicin. PMID- 29339763 TI - Glucocorticoid receptor GRbeta regulates glucocorticoid-induced ocular hypertension in mice. AB - Prolonged glucocorticoid (GC) therapy can cause GC-induced ocular hypertension (OHT), which if left untreated progresses to iatrogenic glaucoma and permanent vision loss. The alternatively spliced isoform of glucocorticoid receptor GRbeta acts as dominant negative regulator of GR activity, and it has been shown that overexpressing GRbeta in trabecular meshwork (TM) cells inhibits GC-induced glaucomatous damage in TM cells. The purpose of this study was to use viral vectors to selectively overexpress the GRbeta isoform in the TM of mouse eyes treated with GCs, to precisely dissect the role of GRbeta in regulating steroid responsiveness. We show that overexpression of GRbeta inhibits GC effects on MTM cells in vitro and GC-induced OHT in mouse eyes in vivo. Ad5 mediated GRbeta overexpression reduced the GC induction of fibronectin, collagen 1, and myocilin in TM of mouse eyes both in vitro and in vivo. GRbeta also reversed DEX-Ac induced IOP elevation, which correlated with increased conventional aqueous humor outflow facility. Thus, GRbeta overexpression reduces effects caused by GCs and makes cells more resistant to GC treatment. In conclusion, our current work provides the first evidence of the in vivo physiological role of GRbeta in regulating GC-OHT and GC-mediated gene expression in the TM. PMID- 29339765 TI - Mutations in bassoon in individuals with familial and sporadic progressive supranuclear palsy-like syndrome. AB - Clinical diagnosis of progressive supranuclear palsy (PSP) is sometimes difficult because various phenotypes have been identified. Here, we report a mutation in the bassoon (BSN) gene in a family with PSP-like syndrome. Their clinical features resembled not only those of PSP patients but also those of individuals with multiple system atrophy and Alzheimer's disease. The neuropathological findings showed a novel three + four repeat tauopathy with pallido-luysio-nigral degeneration and hippocampal sclerosis. Whole-exome analysis of this family identified a novel missense mutation in BSN. Within the pedigree, the detected BSN mutation was found only in affected individuals. Further genetic analyses were conducted in probands from four other pedigrees with PSP-like syndrome and in 41 sporadic cases. Three missense mutations in BSN that are very rarely listed in databases of healthy subjects were found in four sporadic cases. Western blot analysis of tau following the overexpression of wild-type or mutated BSN revealed the possibility that wild-type BSN reduced tau accumulation, while mutated BSN lost this function. An association between BSN and neurological diseases has not been previously reported. Our results revealed that the neurodegenerative disorder associated with the original proband's pedigree is a novel tauopathy, differing from known dementia and parkinsonism syndromes, including PSP. PMID- 29339766 TI - The crystal structure of D-xylonate dehydratase reveals functional features of enzymes from the Ilv/ED dehydratase family. AB - The Ilv/ED dehydratase protein family includes dihydroxy acid-, gluconate-, 6 phosphogluconate- and pentonate dehydratases. The members of this family are involved in various biosynthetic and carbohydrate metabolic pathways. Here, we describe the first crystal structure of D-xylonate dehydratase from Caulobacter crescentus (CcXyDHT) at 2.7 A resolution and compare it with other available enzyme structures from the IlvD/EDD protein family. The quaternary structure of CcXyDHT is a tetramer, and each monomer is composed of two domains in which the N terminal domain forms a binding site for a [2Fe-2S] cluster and a Mg2+ ion. The active site is located at the monomer-monomer interface and contains residues from both the N-terminal recognition helix and the C-terminus of the dimeric counterpart. The active site also contains a conserved Ser490, which probably acts as a base in catalysis. Importantly, the cysteines that participate in the binding and formation of the [2Fe-2S] cluster are not all conserved within the Ilv/ED dehydratase family, which suggests that some members of the IlvD/EDD family may bind different types of [Fe-S] clusters. PMID- 29339767 TI - Regulatory T cells trigger effector T cell DNA damage and senescence caused by metabolic competition. AB - Defining the suppressive mechanisms used by regulatory T (Treg) cells is critical for the development of effective strategies for treating tumors and chronic infections. The molecular processes that occur in responder T cells that are suppressed by Treg cells are unclear. Here we show that human Treg cells initiate DNA damage in effector T cells caused by metabolic competition during cross-talk, resulting in senescence and functional changes that are molecularly distinct from anergy and exhaustion. ERK1/2 and p38 signaling cooperate with STAT1 and STAT3 to control Treg-induced effector T-cell senescence. Human Treg-induced T-cell senescence can be prevented via inhibition of the DNA damage response and/or STAT signaling in T-cell adoptive transfer mouse models. These studies identify molecular mechanisms of human Treg cell suppression and indicate that targeting Treg-induced T-cell senescence is a checkpoint for immunotherapy against cancer and other diseases associated with Treg cells. PMID- 29339768 TI - The characterization of the circadian clock in the olive fly Bactrocera oleae (Diptera: Tephritidae) reveals a Drosophila-like organization. AB - The olive fruit fly, Bactrocera oleae, is the single most important pest for the majority of olive plantations. Oxitec's self-limiting olive fly technology (OX3097D-Bol) offers an alternative management approach to this insect pest. Because of previously reported asynchrony in the mating time of wild and laboratory strains, we have characterized the olive fly circadian clock applying molecular, evolutionary, anatomical and behavioural approaches. Here we demonstrate that the olive fly clock relies on a Drosophila melanogaster-like organization and that OX3097D-Bol carries a functional clock similar to wild-type strains, confirming its suitability for operational use. PMID- 29339769 TI - Universal Transient Dynamics of Electrowetting Droplets. AB - Droplet spreading on substrates by electrowetting exhibits either of the two transient behaviours: one characterised by contact line oscillation, and the other one by slow spreading dynamics. The transition between these behaviours remains elusive due to the current limited understanding of the spreading dynamics on the hydrodynamical and electrical properties of electrowetting systems. To understand this transition we propose a model capturing the transition's occurrence based on both the hydrodynamical and electrical parameters. We derive the critical viscosity at which the transition occurs and reveal its subtle and often hidden dependence on the electrowetting dynamics. We find and experimentally verify that the condition for minimization of droplets' actuation time is only achieved at the transition. Particularly, the transition time as a function of damping ratio exhibits the general feature of Kramers' reaction-rate theory. PMID- 29339770 TI - Reversing Cocaine-Induced Adaptations and Reducing Relapse: An Opportunity for Repurposing Riluzole. PMID- 29339771 TI - Etiology of language network changes during recovery of aphasia after stroke. AB - Knowledge of spatiotemporal patterns of language network changes may help in predicting outcome in aphasic stroke patients. Here we assessed language function and performed functional MRI four times during one year to measure language network activation and cerebrovascular reactivity (with breath-holding) in twelve left-hemispheric stroke patients, of whom two dropped out before the final measurement, and eight age-matched controls. Language outcome was related to increase of activation in left and right posterior inferior temporal gyrus over the first year, while activation increase in right inferior frontal gyrus was inversely correlated to language recovery. Outcome prediction improved by addition of early language-induced activation of the left posterior inferior temporal gyrus to a regression model with baseline language performance as first predictor. Variations in language-induced activation in right inferior frontal gyrus were primarily related to differences in vascular reactivity. Furthermore, several language-activation changes could not be linked to alterations in language proficiency nor vascular reactivity, and were assumed to be caused by unspecified intersession variability. In conclusion, early functional neuroimaging improves outcome prediction of aphasia after stroke. Controlling for cerebrovascular reactivity and unspecified intersession variability may result in more accurate assessment of the relationship between activation pattern shifts and function after stroke. PMID- 29339772 TI - Foxo1 Promotes Th9 Cell Differentiation and Airway Allergy. AB - T helper 9 (Th9) cells are effector CD4+ T cells that are characterized by the production of interleukin-9 (IL-9) and have been associated with allergic responses. Here, we found that the expression of the transcription factor forkhead box O1 (Foxo1) was induced in Th9 and Foxo1 plays a crucial role in the differentiation of Th9 cells. Pharmacological inhibition of Foxo1 or genetic disruption of Foxo1 in CD4+ T cells caused a reduction in IL-9 expression while upregulating IL-17A and IFNgamma production. Furthermore, chromatin immunoprecipitation (ChIP) followed by luciferase assays revealed direct binding of Foxo1 to both the Il9 and Irf4 promoters and induces their transactivation. Lastly, adoptive transfer of Th9 cells into lungs induced asthma-like symptoms that were ameliorated by Foxo1 inhibitor, AS1842856. Together, our findings demonstrate a novel regulator of Th9 cells with a direct implication in allergic inflammation. PMID- 29339774 TI - Erratum: Sensory augmentation: integration of an auditory compass signal into human perception of space. AB - This corrects the article DOI: 10.1038/srep42197. PMID- 29339773 TI - Postural adaptations to unilateral knee joint hypomobility induced by orthosis wear during gait initiation. AB - Balance control and whole-body progression during gait initiation (GI) involve knee-joint mobility. Single knee-joint hypomobility often occurs with aging, orthopedics or neurological conditions. The goal of the present study was to investigate the capacity of the CNS to adapt GI organization to single knee-joint hypomobility induced by the wear of an orthosis. Twenty-seven healthy adults performed a GI series on a force-plate in the following conditions: without orthosis ("control"), with knee orthosis over the swing leg ("orth-swing") and with the orthosis over the contralateral stance leg ("orth-stance"). In orth swing, amplitude of mediolateral anticipatory postural adjustments (APAs) and step width were larger, execution phase duration longer, and anteroposterior APAs smaller than in control. In orth-stance, mediolateral APAs duration was longer, step width larger, and amplitude of anteroposterior APAs smaller than in control. Consequently, step length and progression velocity (which relate to the "motor performance") were reduced whereas stability was enhanced compared to control. Vertical force impact at foot-contact did not change across conditions, despite a smaller step length in orthosis conditions compared to control. These results show that the application of a local mechanical constraint induced profound changes in the global GI organization, altering motor performance but ensuring greater stability. PMID- 29339775 TI - Anti-apoptotic A1 is not essential for lymphoma development in Eu-Myc mice but helps sustain transplanted Eu-Myc tumour cells. AB - The transcription factor c-MYC regulates a multiplicity of genes involved in cellular growth, proliferation, metabolism and DNA damage response and its overexpression is a hallmark of many tumours. Since MYC promotes apoptosis under conditions of stress, such as limited availability of nutrients or cytokines, MYC driven cells are very much dependent on signals that inhibit cell death. Stress signals trigger apoptosis via the pathway regulated by opposing fractions of the BCL-2 protein family and previous genetic studies have shown that the development of B lymphoid tumours in Eu-Myc mice is critically dependent on expression of pro survival BCL-2 relatives MCL-1, BCL-W and, to a lesser extent, BCL-XL, but not BCL-2 itself, and that sustained growth of these lymphomas is dependent on MCL-1. Using recently developed mice that lack expression of all three functional pro survival A1 genes, we show here that the kinetics of lymphoma development in Eu Myc mice and the competitive repopulation capacity of Eu-Myc haemopoietic stem and progenitor cells is unaffected by the absence of A1. However, conditional loss of a single remaining functional A1 gene from transplanted A1-a-/-A1-b fl/fl A1-c-/- Eu-Myc lymphomas slowed their expansion, significantly extending the life of the transplant recipients. Thus, A1 contributes to the survival of malignant Eu-Myc-driven B lymphoid cells. These results strengthen the case for BFL-1, the human homologue of A1, being a valid target for drug development for MYC-driven tumours. PMID- 29339776 TI - The experience of spasticity after spinal cord injury: perceived characteristics and impact on daily life. AB - STUDY DESIGN: Cross-sectional survey. OBJECTIVES: Determine the impact of motor control characteristics attributed to spasticity, such as spasms, stiffness, and clonus on the daily life of people with spinal cord injury (SCI). SETTING: Nationwide, United States. METHODS: Internet-administered questionnaire, the Patient Reported Impact of Spasticity Measure (PRISM) and items describing characteristics of spasticity including stiffness, spasms, clonus, and pain. RESULTS: Of the 145 respondents, 113 (78%) reported a PRISM score of at least 5/164, indicating spasticity had some impact on their daily lives. Stiffness impact was highly correlated (rho = 0.84; p < 0.01) with the PRISM negative impact on Daily Activities subscale and moderately correlated with the other PRISM subscales (rho = 0.55-0.63; p < 0.01). Spasm presence had a negligible or low correlation with PRISM negative impact subscales (rho = 0.29-0.47; p < 0.01). Trunk muscle stiffness and spasms had a low correlation with PRISM Need for Assistance and Daily activities (rho = 0.42 and rho = 0.41, p < 0.01, respectively). Anti-spasticity medications were ineffective for 58% of respondents. Pain in the legs was reported by 57% of respondents. CONCLUSIONS: The experience of spasticity is highly individualized, and is often distributed differently across arms, trunk, and legs. Despite the fact that traditional definitions of spasticity focus on reflex responsiveness, the stiffness associated with spasticity appears to be more problematic than spasms or clonus. The self-described characteristics of spasticity and its physiological presentation are complex and related to pain. This varied presentation lends support to the concept that management of spasticity may be best achieved by multimodality strategies. PMID- 29339777 TI - Regulation of the Response of Caenorhabditis elegans to Simulated Microgravity by p38 Mitogen-Activated Protein Kinase Signaling. AB - The in vivo function of p38 mitogen-activated protein kinase (MAPK) signaling in regulating the response to simulated microgravity is still largely unclear. Using Caenorhabditis elegans as an assay system, we investigated the in vivo function of p38 MAPK signaling in regulating the response of animals to simulated microgravity and the underlying molecular mechanism. Simulated microgravity treatment significantly increased the transcriptional expressions of genes (pmk 1, sek-1, and nsy-1) encoding core p38 MAPK signaling pathway and the expression of phosphorylated PMK-1/p38 MAPK. The pmk-1, sek-1, or nsy-1 mutant was susceptible to adverse effects of simulated microgravity. The intestine-specific activity of PMK-1 was required for its function in regulating the response to simulated microgravity, and the entire p38 MAPK signaling pathway could act in the intestine to regulate the response to simulated microgravity. In the intestine, SKN-1 and ATF-7, two transcriptional factors, were identified as downstream targets for PMK-1 in regulating the response to simulated microgravity. Therefore, the activation of p38 MAPK signaling may mediate a protection mechanism for nematodes against the adverse effects of simulated microgravity. Additionally, our results highlight the potential crucial role of intestinal cells in response to simulated microgravity in nematodes. PMID- 29339778 TI - A novel human muscle cell model of Duchenne muscular dystrophy created by CRISPR/Cas9 and evaluation of antisense-mediated exon skipping. AB - Oligonucleotide-mediated splicing modulation is a promising therapeutic approach for Duchenne muscular dystrophy (DMD). Recently, eteplirsen, a phosphorodiamidate morpholino oligomer-based splice-switching oligonucleotide (SSO) targeting DMD exon 51, was approved by the U.S. Food and Drug Administration as the first antisense-based drug for DMD patients. For further exploring SSOs targeting other exons in the DMD gene, the efficacy of exon skipping and protein rescue with each SSO sequence needs evaluations in vitro. However, only a few immortalized muscle cell lines derived from DMD patients have been reported and are available to test the efficacy of exon skipping in vitro. To solve this problem, we generated a novel immortalized DMD muscle cell line from the human rhabdomyosarcoma (RD) cell line. We removed DMD exons 51-57 (~0.3 Mb) in the RD cell line using the CRISPR/Cas9 system. Additionally, in this DMD model cell line, we evaluated the exon 50 skipping activity of previously reported SSOs at both the mRNA and protein levels. CRISPR/Cas9-mediated gene editing of the DMD gene in the RD cell line will allow for assessment of SSOs targeting most of the rare mutations in the DMD gene. PMID- 29339779 TI - Novel recessive mutations in MSTO1 cause cerebellar atrophy with pigmentary retinopathy. AB - Misato 1, mitochondrial distribution and morphology regulator (encoded by the MSTO1 gene), is involved in mitochondrial distribution and morphology. Recently, MSTO1 mutations have been shown to cause clinical manifestations suggestive of mitochondrial dysfunction, such as muscle weakness, short stature, motor developmental delay, and cerebellar atrophy. Both autosomal dominant and recessive modes of inheritance have been suggested. We performed whole-exome sequencing in two unrelated patients showing cerebellar atrophy, intellectual disability, and pigmentary retinopathy. Three novel mutations were identified: c.836 G > A (p.Arg279His), c.1099-1 G > A (p.Val367Trpfs*2), and c.79 C > T (p.Gln27*). Both patients had compound heterozygous mutations with a combination of protein-truncation mutation and missense mutation, the latter shared by them both. This survey of two patients with recessive and novel MSTO1 mutations provides additional clinical and genetic information on the pathogenicity of MSTO1 in humans. PMID- 29339780 TI - Extractable pool of biochar controls on crop productivity rather than greenhouse gas emission from a rice paddy under rice-wheat rotation. AB - The role of extractable pool of biochar in crop productivity and soil greenhouse gas (GHGs) emission is not yet clear. In this study, two biochars with and without extraction was added to a paddy before rice transplantation at 20 t.ha-1. Crop yield, plant traits and greenhouse gas emission monitored throughout a rice wheat rotation. Between the biochar treatments, changes in bulk density and microbial biomass carbon were insignificant. However, the increase in organic carbon was similar between maize and wheat biochars while higher under bulk wheat biochar than extracted one. The increase in available P and K was higher under wheat than maize biochar regardless of extraction. Moreover, the increase in plant traits and grain yield, in rice season only, was higher under bulk than extracted biochars. Yet, there was no difference in changes in GHGs emission between bulk and extracted biochars regardless of feedstock. Nevertheless, increased methane emission for rice season was lower under extracted biochars than bulk ones. Overall, crop productivity rather than GHGs emission was affected by treatment of extraction of biochars. Thus, use of unextracted biochar is recommended for improving soil crop productivity in the paddy soils. PMID- 29339781 TI - Draxin regulates hippocampal neurogenesis in the postnatal dentate gyrus by inhibiting DCC-induced apoptosis. AB - Hippocampal neurogenesis in the dentate gyrus (DG) is controlled by diffusible molecules that modulate neurogenic processes, including cell proliferation, differentiation and survival. To elucidate the mechanisms underlying hippocampal neurogenesis, we investigated the function of draxin, originally identified as a neural chemorepellent, in the regulation of neuronal survival in the DG. Draxin was expressed in Tbr2 (+) late progenitors and NeuroD1 (+) neuroblasts in the dentate granule cell lineage, whereas expression of its receptor DCC (deleted in colorectal cancer) was mainly detectable in neuroblasts. Our phenotypic analysis revealed that draxin deficiency led to enhanced apoptosis of DCC-expressing neuroblasts in the neurogenic areas. Furthermore, in vitro assays using a hippocampal neural stem/progenitor cell (HNSPC) line indicated that draxin inhibited apoptosis in differentiating HNSPCs, which express DCC. Taken together, we postulate that draxin plays a pivotal role in postnatal DG neurogenesis as a dependence receptor ligand for DCC to maintain and promote survival of neuroblasts. PMID- 29339782 TI - Loss of disease tolerance during Citrobacter rodentium infection is associated with impaired epithelial differentiation and hyperactivation of T cell responses. AB - Citrobacter rodentium is an intestinal mouse pathogen widely used as a model to study the mucosal response to infection. Inbred mouse strains suffer one of two fates following infection: self-limiting colitis or fatal diarrheal disease. We previously reported that Rspo2 is a major genetic determinant of the outcome of C. rodentium infection; Rspo2 induction during infection of susceptible mice leads to loss of intestinal function and mortality. Rspo2 induction does not impact bacterial colonization, but rather, impedes the ability of the host to tolerate C. rodentium infection. Here, we performed deep RNA sequencing and systematically analyzed the global gene expression profiles of C. rodentium infected colon tissues from susceptible and resistant congenic mice strains to determine the common responses to infection and the Rspo2-mediated dysfunction pathway signatures associated with loss of disease tolerance. Our results highlight changes in metabolism, tissue remodeling, and host defence as common responses to infection. Conversely, increased Wnt and stem cell signatures, loss of epithelial differentiation, and exaggerated CD4+ T cell activation through increased antigen processing and presentation were specifically associated with the response to infection in susceptible mice. These data provide insights into the molecular mechanisms underlying intestinal dysfunction and disease tolerance during C. rodentium infection. PMID- 29339783 TI - Global and regional importance of the direct dust-climate feedback. AB - Feedbacks between the global dust cycle and the climate system might have amplified past climate changes. Yet, it remains unclear what role the dust climate feedback will play in future anthropogenic climate change. Here, we estimate the direct dust-climate feedback, arising from changes in the dust direct radiative effect (DRE), using a simple theoretical framework that combines constraints on the dust DRE with a series of climate model results. We find that the direct dust-climate feedback is likely in the range of -0.04 to +0.02 Wm -2 K 1, such that it could account for a substantial fraction of the total aerosol feedbacks in the climate system. On a regional scale, the direct dust-climate feedback is enhanced by approximately an order of magnitude close to major source regions. This suggests that it could play an important role in shaping the future climates of Northern Africa, the Sahel, the Mediterranean region, the Middle East, and Central Asia. PMID- 29339784 TI - Anisotropic sensor and memory device with a ferromagnetic tunnel barrier as the only magnetic element. AB - Multiple spin functionalities are probed on Pt/La2Co0.8Mn1.2O6/Nb:SrTiO3, a device composed by a ferromagnetic insulating barrier sandwiched between non magnetic electrodes. Uniquely, La2Co0.8Mn1.2O6 thin films present strong perpendicular magnetic anisotropy of magnetocrystalline origin, property of major interest for spintronics. The junction has an estimated spin-filtering efficiency of 99.7% and tunneling anisotropic magnetoresistance (TAMR) values up to 30% at low temperatures. This remarkable angular dependence of the magnetoresistance is associated with the magnetic anisotropy whose origin lies in the large spin-orbit interaction of Co2+ which is additionally tuned by the strain of the crystal lattice. Furthermore, we found that the junction can operate as an electrically readable magnetic memory device. The findings of this work demonstrate that a single ferromagnetic insulating barrier with strong magnetocrystalline anisotropy is sufficient for realizing sensor and memory functionalities in a tunneling device based on TAMR. PMID- 29339785 TI - The lncRNA GATA6-AS epigenetically regulates endothelial gene expression via interaction with LOXL2. AB - Impaired or excessive growth of endothelial cells contributes to several diseases. However, the functional involvement of regulatory long non-coding RNAs in these processes is not well defined. Here, we show that the long non-coding antisense transcript of GATA6 (GATA6-AS) interacts with the epigenetic regulator LOXL2 to regulate endothelial gene expression via changes in histone methylation. Using RNA deep sequencing, we find that GATA6-AS is upregulated in endothelial cells during hypoxia. Silencing of GATA6-AS diminishes TGF-beta2-induced endothelial-mesenchymal transition in vitro and promotes formation of blood vessels in mice. We identify LOXL2, known to remove activating H3K4me3 chromatin marks, as a GATA6-AS-associated protein, and reveal a set of angiogenesis-related genes that are inversely regulated by LOXL2 and GATA6-AS silencing. As GATA6-AS silencing reduces H3K4me3 methylation of two of these genes, periostin and cyclooxygenase-2, we conclude that GATA6-AS acts as negative regulator of nuclear LOXL2 function. PMID- 29339786 TI - Integrated miRNA-mRNA spatial signature for oral squamous cell carcinoma: a prospective profiling study of Narrow Band Imaging guided resection. AB - Oral squamous cell carcinoma (OSCC) is a common malignancy for which there is poor prognosis and limited therapeutic options. The objective was to identify mRNA targets of dysregulated miRNAs in OSCC using integrated analysis and understand molecular abnormality in surgical margins. We used biopsies along the spatial axis from normal tissue defined by narrow band imaging (NBI) through conventional white light (WL) margins to tumour from 18 patients undergoing surgical resection for OSCC. Overall 119 miRNA and 4794 mRNA were differentially expressed along the adjacent normal tissue to tumour axis. Analysis of miRNA profiles demonstrated the NBI margins were molecularly distinct from both the tumour and WL margin. Integrated analysis identified 193 miRNA-mRNA interactions correlated to the spatial axis of NBI-WL-T. We used cross-validation analysis to derive a spatial interactome signature of OSCC comprising 100 putative miRNA-mRNA interactions between 40 miRNA and 96 mRNA. Bioinformatic analysis suggests that miRNA dysregulation in OSCC may contribute to activation of the oncostatin M, BDNF and TGF-beta pathways. Our data demonstrates that surgical margins defined by NBI leave less potentially malignant residual tissue. The miRNA-mRNA interactome provides insight into dysregulated miRNA signalling in OSCC and supports molecular definition of tumour margins. PMID- 29339787 TI - Cilia-related protein SPEF2 regulates osteoblast differentiation. AB - Sperm flagellar protein 2 (SPEF2) is essential for motile cilia, and lack of SPEF2 function causes male infertility and primary ciliary dyskinesia. Cilia are pointing out from the cell surface and are involved in signal transduction from extracellular matrix, fluid flow and motility. It has been shown that cilia and cilia-related genes play essential role in commitment and differentiation of chondrocytes and osteoblasts during bone formation. Here we show that SPEF2 is expressed in bone and cartilage. The analysis of a Spef2 knockout (KO) mouse model revealed hydrocephalus, growth retardation and death prior to five weeks of age. To further elucidate the causes of growth retardation we analyzed the bone structure and possible effects of SPEF2 depletion on bone formation. In Spef2 KO mice, long bones (tibia and femur) were shorter compared to wild type, and X-ray analysis revealed reduced bone mineral content. Furthermore, we showed that the in vitro differentiation of osteoblasts isolated from Spef2 KO animals was compromised. In conclusion, this study reveals a novel function for SPEF2 in bone formation through regulation of osteoblast differentiation and bone growth. PMID- 29339788 TI - Band gap maps beyond the delocalization limit: correlation between optical band gaps and plasmon energies at the nanoscale. AB - Recent progresses in nanoscale semiconductor technology have heightened the need for measurements of band gaps with high spatial resolution. Band gap mapping can be performed through a combination of probe-corrected scanning transmission electron microscopy (STEM) and monochromated electron energy-loss spectroscopy (EELS), but are rare owing to the complexity of the experiments and the data analysis. Furthermore, although this method is far superior in terms of spatial resolution to any other techniques, it is still fundamentally resolution-limited due to inelastic delocalization of the EELS signal. In this work we have established a quantitative correlation between optical band gaps and plasmon energies using the Zn1-xCd x O/ZnO system as an example, thereby side-stepping the fundamental resolution limits of band gap measurements, and providing a simple and convenient approach to achieve band gap maps with unprecedented spatial resolution. PMID- 29339790 TI - Decoding the dynamic representation of musical pitch from human brain activity. AB - In music, the perception of pitch is governed largely by its tonal function given the preceding harmonic structure of the music. While behavioral research has advanced our understanding of the perceptual representation of musical pitch, relatively little is known about its representational structure in the brain. Using Magnetoencephalography (MEG), we recorded evoked neural responses to different tones presented within a tonal context. Multivariate Pattern Analysis (MVPA) was applied to "decode" the stimulus that listeners heard based on the underlying neural activity. We then characterized the structure of the brain's representation using decoding accuracy as a proxy for representational distance, and compared this structure to several well established perceptual and acoustic models. The observed neural representation was best accounted for by a model based on the Standard Tonal Hierarchy, whereby differences in the neural encoding of musical pitches correspond to their differences in perceived stability. By confirming that perceptual differences honor those in the underlying neuronal population coding, our results provide a crucial link in understanding the cognitive foundations of musical pitch across psychological and neural domains. PMID- 29339789 TI - Exosome-mediated breast cancer chemoresistance via miR-155 transfer. AB - Breast cancer remains the most prevalent cause of cancer mortality in woman worldwide due to the metastatic process and therapy resistance. Resistance against cancer therapy is partially attributed to cancer stem cells (CSCs). These cells arise from epithelial cells undergoing epithelial-to-mesenchymal transition (EMT) and might be responsible for tumor recurrence. In this study, we reported the relevance of miR-155 upregulation in chemoresistant cells associated with EMT. Notably, we found miR-155 induction in exosomes isolated from CSCs and resistant cells, followed by resistant cells' exosome transfer to the recipient sensitive cells. Functionally, miR-155 mimic assay showed an enrichment in miR 155 from exosome concomitant with miR-155 exosome transfer to breast cancer cells. In parallel to these effects, we also observed EMT change in miR-155 transfected cells. The chemoresistance phenotype transfer to sensitive cells and the migration capability was analyzed by MTT and scratch assays and our results suggest that exosomes may intermediate resistance and migration capacity to sensitive cells partly through exosome transfer of miR-155. Taken together, our findings establish the significance of exosome-mediate miR-155 chemoresistance in breast cancer cells, with implications for targeting miR-155 signaling as a possible therapeutic strategy. PMID- 29339792 TI - Assemble-And-Match: A Novel Hybrid Tool for Enhancing Education and Research in Rational Structure Based Drug Design. AB - Rational drug design is the process of finding new medication that can activate or inhibit the biofunction of a target molecule by binding to it and forming a molecular complex. Here, shape and charge complementarities between drug and target are key. To help find effective drug molecules out of a huge pool of possibilities, physical and computer aided tools have been developed. Former offers a tangible experience of the molecular interactions yet lacks measurement and evaluation capabilities. Latter enables accurate and fast evaluations, but does not deliver the interactive tangible experience of physical models. We introduce a novel hybrid model called "Assemble-And-Match" where, we enhance and combine the unique features of the two categories. Assemble-And-Match works based on fabrication of customized molecular fragments using our developed software and a 3D printer. Fragments are hinged to each other in different combinations and form flexible peptide chains, conformable to tertiary structures, to fit in the binding pocket of a (3D printed) target molecule. Through embedded measurement marks, the molecular model is reconstructed in silico and its properties are evaluated. We expect Assemble-And-Match tool can enable combination of visuospatial perception with in silico computational power to aid research and education in drug design. PMID- 29339791 TI - The GluN2A Subunit Regulates Neuronal NMDA receptor-Induced Microglia-Neuron Physical Interactions. AB - Microglia are known to engage in physical interactions with neurons. However, our understanding of the detailed mechanistic regulation of microglia-neuron interactions is incomplete. Here, using high resolution two photon imaging, we investigated the regulation of NMDA receptor-induced microglia-neuron physical interactions. We found that the GluN2A inhibitor NVPAAM007, but not the GluN2B inhibitor ifenprodil, blocked the occurrence of these interactions. Consistent with the well-known developmental regulation of the GluN2A subunit, these interactions are absent in neonatal tissues. Furthermore, consistent with a preferential synaptic localization of GluN2A subunits, there is a differential sensitivity of their occurrence between denser (stratum radiatum) and less dense (stratum pyramidale) synaptic sub-regions of the CA1. Finally, consistent with differentially expressed GluN2A subunits in the CA1 and DG areas of the hippocampus, these interactions could not be elicited in the DG despite robust microglial chemotactic capabilities. Together, these results enhance our understanding of the mechanistic regulation of NMDA receptor-dependent microglia neuronal physical interactions phenomena by the GluN2A subunit that may be relevant in the mammalian brain during heightened glutamatergic neurotransmission such as epilepsy and ischemic stroke. PMID- 29339793 TI - Skin-inspired highly stretchable and conformable matrix networks for multifunctional sensing. AB - Mechanosensation electronics (or Electronic skin, e-skin) consists of mechanically flexible and stretchable sensor networks that can detect and quantify various stimuli to mimic the human somatosensory system, with the sensations of touch, heat/cold, and pain in skin through various sensory receptors and neural pathways. Here we present a skin-inspired highly stretchable and conformable matrix network (SCMN) that successfully expands the e-skin sensing functionality including but not limited to temperature, in-plane strain, humidity, light, magnetic field, pressure, and proximity. The actualized specific expandable sensor units integrated on a structured polyimide network, potentially in three-dimensional (3D) integration scheme, can also fulfill simultaneous multi stimulus sensing and achieve an adjustable sensing range and large-area expandability. We further construct a personalized intelligent prosthesis and demonstrate its use in real-time spatial pressure mapping and temperature estimation. Looking forward, this SCMN has broader applications in humanoid robotics, new prosthetics, human-machine interfaces, and health-monitoring technologies. PMID- 29339794 TI - HPV-16 virions can remain infectious for 2 weeks on senescent cells but require cell cycle re-activation to allow virus entry. AB - Successful infection with Human Papillomaviruses requires mitosis, when incoming viral genomes gain access to nuclear components. However, very little is known about how long HPV particles can remain infectious in non-dividing cells or in which cellular compartments these viruses may reside. To investigate these questions we have used BJ cells as a reversible model of senescence and show that HPV-16 can only infect early-passage proliferating cells. Late-passage senescent cells are resistant to HPV infection, but this can be reversed by inducing cell cycle re-entry with a p53 siRNA. In senescent cells we find that efficient virus entry can be attained upon cell cycle re-entry 16 days after infection, demonstrating that HPV can persist for 2 weeks prior to induction of mitosis. However, exposing cells to anti-HPV-16 L1 neutralising antibody blocks infection at these late time points, suggesting that the virions reside near the cell surface. Indeed, immunofluorescence analysis shows that virions accumulate on the cell surface of senescent cells and only enter endocytic vesicles upon stimulation with p53 siRNA. These results demonstrate that HPV-16 virions can remain viable on a non-dividing cell for extended periods of time, but are nonetheless vulnerable to antibody-induced neutralisation throughout. PMID- 29339795 TI - Lipidized prolactin-releasing peptide improved glucose tolerance in metabolic syndrome: Koletsky and spontaneously hypertensive rat study. AB - BACKGROUND/OBJECTIVES: Prolactin-releasing peptide (PrRP) has a potential to decrease food intake and ameliorate obesity, but is ineffective after peripheral administration. We have previously shown that our novel lipidized analogs PrRP enhances its stability in the circulation and enables its central effect after peripheral application. The purpose of this study was to explore if sub-chronic administration of novel PrRP analog palmitoylated in position 11 (palm11-PrRP31) to Koletsky-spontaneously hypertensive obese rats (SHROB) could lower body weight and glucose intolerance as well as other metabolic parameters. SUBJECTS/METHODS: The SHROB rats (n = 16) were used for this study and age-matched hypertensive lean SHR littermates (n = 16) served as controls. Palm11-PrRP31 was administered intraperitoneally to SHR and SHROB (n = 8) at a dose of 5 mg/kg once-daily for 3 weeks. During the dosing period food intake and body weight were monitored. At the end of the experiment the oral glucose tolerance test was performed; plasma and tissue samples were collected. Thereafter, arterial blood pressure was measured. RESULTS: At the end of the experiment, vehicle-treated SHROB rats showed typical metabolic syndrome parameters, including obesity, glucose intolerance, dyslipidemia, and hypertension. Peripheral treatment with palm11 PrRP31 progressively decreased the body weight of SHR rats but not SHROB rats, though glucose tolerance was markedly improved in both strains. Moreover, in SHROB palm11-PrRP31 ameliorated the HOMA index, insulin/glucagon ratio, and increased insulin receptor substrate 1 and 2 expression in fat and insulin signaling in the hypothalamus, while it had no effect on blood pressure. CONCLUSIONS: We demonstrated that our new lipidized PrRP analog is capable of improving glucose tolerance in obese SHROB rats after peripheral application, suggesting that its effect on glucose metabolism is independent of leptin signaling and body weight lowering. These data suggest that this analog has the potential to be a compound with both anti-obesity and glucose-lowering properties. PMID- 29339796 TI - A user's guide to the ambiguous word 'epigenetics'. PMID- 29339799 TI - Complementary therapies for fatigue after hematopoietic stem cell transplantation: an integrative review. AB - Fatigue after hematopoietic stem cell transplantation (HSCT) is a persistent problem that limits activities and causes distress. Complementary therapies have shown promising results in improving fatigue in several patient populations. However, it is unknown whether they have the same effect on fatigue in the HSCT population. This integrative review aimed to explore the literature that evaluated complementary therapies for fatigue among HSCT patients. Only eight studies were considered eligible for inclusion in this review. The eight studies evaluated music therapy, relaxation, mindfulness, and massage techniques with mixed results. These studies had major methodological limitations, such as the small sample sizes and not blinding participants to the treatment allocation, introducing possible bias. Furthermore, most of these studies used 'usual care' control groups, leaving it unclear to what extent the observed effects are based on the effects of complementary therapies, or rather on psychosocial factors such as personal attention. More research is needed to more rigorously evaluate these and other complementary therapies for the prevalent problem of fatigue in the HSCT population. PMID- 29339797 TI - A brave new world of RNA-binding proteins. AB - RNA-binding proteins (RBPs) are typically thought of as proteins that bind RNA through one or multiple globular RNA-binding domains (RBDs) and change the fate or function of the bound RNAs. Several hundred such RBPs have been discovered and investigated over the years. Recent proteome-wide studies have more than doubled the number of proteins implicated in RNA binding and uncovered hundreds of additional RBPs lacking conventional RBDs. In this Review, we discuss these new RBPs and the emerging understanding of their unexpected modes of RNA binding, which can be mediated by intrinsically disordered regions, protein-protein interaction interfaces and enzymatic cores, among others. We also discuss the RNA targets and molecular and cellular functions of the new RBPs, as well as the possibility that some RBPs may be regulated by RNA rather than regulate RNA. PMID- 29339800 TI - Haploidentical hematopoietic stem cell transplant for patients with sickle cell disease using thiotepa, fludarabine, thymoglobulin, low dose cyclophosphamide, 200 cGy tbi and post transplant cyclophosphamide. PMID- 29339798 TI - Shedding light on the cell biology of extracellular vesicles. AB - Extracellular vesicles are a heterogeneous group of cell-derived membranous structures comprising exosomes and microvesicles, which originate from the endosomal system or which are shed from the plasma membrane, respectively. They are present in biological fluids and are involved in multiple physiological and pathological processes. Extracellular vesicles are now considered as an additional mechanism for intercellular communication, allowing cells to exchange proteins, lipids and genetic material. Knowledge of the cellular processes that govern extracellular vesicle biology is essential to shed light on the physiological and pathological functions of these vesicles as well as on clinical applications involving their use and/or analysis. However, in this expanding field, much remains unknown regarding the origin, biogenesis, secretion, targeting and fate of these vesicles. PMID- 29339802 TI - Biases of STRUCTURE software when exploring introduction routes of invasive species. AB - Population genetic methods are widely used to retrace the introduction routes of invasive species. The unsupervised Bayesian clustering algorithm implemented in STRUCTURE is amongst the most frequently used of these methods, but its ability to provide reliable information about introduction routes has never been assessed. We simulated microsatellite datasets to evaluate the extent to which the results provided by STRUCTURE were misleading for the inference of introduction routes. We focused on an invasion scenario involving one native and two independently introduced populations, because it is the sole scenario that can be rejected when obtaining a particular clustering with a STRUCTURE analysis at K = 2 (two clusters). Results were classified as "misleading" or "non misleading". We investigated the influence of effective size, bottleneck severity and number of loci on the type and frequency of misleading results. We showed that misleading STRUCTURE results were obtained for 10% of all simulated datasets. Our results highlighted two categories of misleading output. The first occurs when the native population has a low level of diversity. In this case, the two introduced populations may be very similar, despite their independent introduction histories. The second category results from convergence issues in STRUCTURE for K = 2, with strong bottleneck severity and/or large numbers of loci resulting in high levels of differentiation between the three populations. Overall, the risk of being misled by STRUCTURE in the context of introduction routes inferences is moderate, but it is important to remain cautious when low genetic diversity or genuine multimodality between runs are involved. PMID- 29339801 TI - Cardiac glycoside/aglycones inhibit HIV-1 gene expression by a mechanism requiring MEK1/2-ERK1/2 signaling. AB - The capacity of HIV-1 to develop resistance to current drugs calls for innovative strategies to control this infection. We aimed at developing novel inhibitors of HIV-1 replication by targeting viral RNA processing-a stage dependent on conserved host processes. We previously reported that digoxin is a potent inhibitor of this stage. Herein, we identify 12 other cardiac glycoside/aglycones or cardiotonic steroids (CSs) that impede HIV growth in HIV-infected T cells from clinical patients at IC50s (1.1-1.3 nM) that are 2-26 times below concentrations used in patients with heart conditions. We subsequently demonstrate that CSs inhibit HIV-1 gene expression in part through modulation of MEK1/2-ERK1/2 signaling via interaction with the Na+/K+-ATPase, independent of alterations in intracellular Ca2+. Supporting this hypothesis, depletion of the Na+/K+-ATPase or addition of a MEK1/2-ERK1/2 activator also impairs HIV-1 gene expression. Similar to digoxin, all CSs tested induce oversplicing of HIV-1 RNAs, reducing unspliced (Gag) and singly spliced RNAs (Env/p14-Tat) encoding essential HIV-1 structural/regulatory proteins. Furthermore, all CSs cause nuclear retention of genomic/unspliced RNAs, supporting viral RNA processing as the underlying mechanism for their disruption of HIV-1 replication. These findings call for further in vivo validation and supports the targeting of cellular processes to control HIV-1 infection. PMID- 29339803 TI - Carbohydrates protect protein against abiotic fragmentation by soil minerals. AB - The degradation and turnover of soil organic matter is an important part of global carbon cycling and of particular importance with respect to attempts to predict the response of ecosystems to global climate change. Thus, it is important to mechanistically understand the processes by which organic matter can be degraded in the soil environment, including contact with reactive or catalytic mineral surfaces. We have characterized the outcome of the interaction of two minerals, birnessite and kaolinite, with two disaccharides, cellobiose and trehalose. These results show that birnessite reacts with and degrades the carbohydrates, while kaolinite does not. The reaction of disaccharides with birnessite produces Mn(II), indicating that degradation of the disaccharides is the result of their oxidation by birnessite. Furthermore, we find that both sugars can inhibit the degradation of a model protein by birnessite, demonstrating that the presence of one organic constituent can impact abiotic degradation of another. Therefore, both the reactivity of the mineral matrix and the presence of certain organic constituents influence the outcomes of abiotic degradation. These results suggest the possibility that microorganisms may be able to control the functionality of exoenzymes through the concomitant excretion of protective organic substances, such as those found in biofilms. PMID- 29339805 TI - First description of behavior and immune system relationship in fish. AB - Considering the intriguing relationship between immune system and behavior recently described in mammals, and the lack of information of this relationship in fish, here we describe for the first time the interaction between the immune system and social and exploratory behavior in zebrafish. Fish high responders to novelty (HRN) presented a proinflammatory profile, with increased IL-1beta and reduced IL-10 expression compared to fish low responders to novelty (LRN). Likewise, fish less responsive to social stimuli have a reduced expression of INF gamma. We show that fish with different behavior patterns have differences in the immune response. Our findings indicate that the interplay between immune system and behavior in zebrafish is similar to that found in mammalian models and that zebrafish should be considered as a potential model organism to study the relationship between immune system and behavior. PMID- 29339804 TI - EPHB6 and testosterone in concert regulate epinephrine release by adrenal gland chromaffin cells. AB - Erythropoietin-producing human hepatocellular receptor (EPH) B6 (EPHB6) is a member of the receptor tyrosine kinase family. We previously demonstrated that EPHB6 knockout reduces catecholamine secretion in male but not female mice, and castration reverses this phenotype. We showed here that male EPHB6 knockout adrenal gland chromaffin cells presented reduced acetylcholine-triggered Ca2+ influx. Such reduction depended on the non-genomic effect of testosterone. Increased large conductance calcium-activated potassium channel current densities were recorded in adrenal gland chromaffin cells from male EPHB6 knockout mice but not from castrated knockout or female knockout mice. Blocking of the large conductance calcium-activated potassium channel in adrenal gland chromaffin cells from male knockout mice corrected their reduced Ca2+ influx. We conclude that the absence of EPHB6 and the presence of testosterone would lead to augmented large conductance calcium-activated potassium channel currents, which limit voltage gated calcium channel opening in adrenal gland chromaffin cells. Consequently, acetylcholine-triggered Ca2+ influx is reduced, leading to lower catecholamine release in adrenal gland chromaffin cells from male knockout mice. This explains the reduced resting-state blood catecholamine levels, and hence the blood pressure, in male but not female EPHB6 knock mice. These findings have certain clinical implications. PMID- 29339806 TI - Tumor characteristics, treatments, and oncological outcomes of prostate cancer in men aged <=50 years: a population-based study. AB - BACKGROUND: To examine clinical characteristics, treatment modalities and oncological outcomes of prostate cancer (PCa) according to young (<=50) vs. old age. METHODS: Of 407,599 men with primary adenocarcinoma of the prostate within the Surveillance, Epidemiology and End Results (SEER)-database (2004 to 2013), 18,387 were aged <=50 years (4.5%). Time trends, cumulative incidence, and competing risks regression (CRR) analyses tested for differences between young and old patients. Multi-variable analyses were adjusted for year of diagnosis, race, marital status, Gleason Score, clinical tumor stage, and lymph node status. RESULTS: Younger men had more favorable tumor characteristics: lower Gleason Score, lower median PSA, and lower rates of metastases at diagnosis compared to their older counterparts. Over time, no local treatment (NLT) rates increased, radical prostatectomy (RP), and brachytherapy (BT) rates decreased and external beam radiation (EBRT) rates remained unchanged. Moreover, the rate of de novo metastatic prostate cancer increased in young patients from 2% (2004) to 3.2% (2013) (p = 0.004). CRR models showed no difference in prostate cancer-specific mortality (PCSM) between young and old, across all local treatment types. CONCLUSIONS: Young PCa patients have more favorable disease characteristics at presentation, are less frequently treated with RP or BT and more frequently benefit of NLT. PCSM did not differ between young and old patients. However, it is worrisome that recently more young PCa patients are diagnosed at a metastatic stage. PMID- 29339808 TI - Gut microbiota: Filling up on fibre for a healthy gut. PMID- 29339807 TI - Overexpression of alpha (1,6) fucosyltransferase in the development of castration resistant prostate cancer cells. AB - Glycosylation is recognized as one of the most common modifications on proteins. Recent studies have shown that aberrant expression of alpha (1,6) fucosyltransferase (FUT8), which catalyzes the transfer of fucose from GDP-fucose to core-GlcNAc of the N-linked glycoproteins, modulates cellular behavior that could lead to the development of aggressive prostate cancer. While the relationship between the abnormal expression of FUT8 and glycoprotein fucosylation in different prostate cancer cells has been demonstrated, there is no evidence that shows dysregulated fucosylation might be involved in prostate cancer progression from androgen-dependent to castration-resistant prostate cancer. In this study, using a proteomics approach, we analyzed androgen dependent and androgen-resistant LAPC4 cells and identified FUT8 to be significantly overexpressed in the androgen-resistant LAPC4 cells. These findings were independently confirmed in LAPC4 cells that were treated with non-steroidal anti-androgen (bicalutamide) and in the in vivo castrated tumor xenograft models. Similarly, we also demonstrated that overexpression of FUT8 might be responsible for the decreased PSA expression in prostate cancer specimens. To our knowledge, this is the first study reporting the functional role of fucosylated enzyme in the development of castration-resistant prostate cancer. PMID- 29339809 TI - Gut microbiota: Targeting of specific microbial species mitigates colitis. PMID- 29339811 TI - Diagnosis: Gas-sensing gut capsules. PMID- 29339810 TI - Extrahepatic cancers and chronic HCV infection. AB - Infectious agents, such as HCV, account for ~15% of human cancers. HCV infects not only hepatocytes but also extrahepatic cells. Chronic HCV infection can induce chronic inflammation with qualitative and quantitative alterations of the immune repertoire and tissue microenvironment, which could induce various neoplasias. Epidemiological studies and meta-analyses suggest an increased rate of extrahepatic cancers in patients with chronic HCV infection along with a higher risk of intrahepatic cholangiocarcinoma, pancreatic cancer and non-Hodgkin lymphoma (NHL), highlighting the need to screen for HCV infection in patients with these cancers. Development of B cell NHL has been associated with HCV infection, with a relative risk of ~1.5. Direct transformation related to the presence of the virus and chronic antigenic stimulation are the two major non exclusive mechanisms involved in HCV-related lymphomagenesis. HCV infection alters survival of patients with lymphoma, and sustained virologic response (SVR) substantially improves prognosis. Antiviral treatments might induce remission of indolent lymphoma when SVR is achieved even without chemotherapy, emphasizing the role of HCV in lymphomagenesis in this context. However, studies are needed to provide prospective evidence of a causal relationship between chronic HCV infection and other extrahepatic cancers and to determine whether the risk of extrahepatic cancers is reduced with SVR. In this Review, we report on recent studies analysing the risk of extrahepatic cancers associated with chronic HCV infection. Although there is no doubt regarding the direct and indirect causality between HCV and NHL, an increased risk of other cancers is less clear, with the exception of cholangiocarcinoma. PMID- 29339812 TI - Colorectal cancer: Hand-in-hand - colorectal cancer metastasizes with microorganisms. PMID- 29339813 TI - A new group of synthetic phenolic-containing amphiphilic molecules for multipurpose applications: Physico-chemical characterization and cell-toxicity study. AB - Nine synthetic amphiphilic phenolic lipids, varied in phenolic moiety (caffeoyl/dimethylcaffeoyl) and fatty acid chain lengths (8-18) were characterized by differential scanning calorimetry (DSC), temperature-ramp Fourier transform infra-red spectroscopy (FT-IR) and atomic force microscopy (AFM). FT-IR and DSC results revealed that the physical state and lateral packing of synthetic molecules were largely governed by fatty acyls. The critical micelle concentrations (CMC) of synthetic lipids was in the range of 0.1 mM to 2.5 mM, affording generation of stable oil-in-water emulsions; as evidenced by the creaming index (<5%) of emulsions stabilized by compounds C12-C16, and C12a-C16a after 7 days' storage. AFM analysis revealed that compound C14 formed stable double-layers films of 5.2 nm and 6.7 nm. Application studies showed that formulations stabilized by synthesized compounds containing 30% fish oil had superior physical and oxidative stability compared to formulations containing commercial emulsifiers or their mixtures with phenolic acids. Moreover, the synthetic compounds were non-toxic against in vitro transformed keratinocytes from histologically normal skin and Caco-2 cell lines. This study demonstrates the relevance of using a natural hydroxycarboxylic acid as a flexible linker between natural antioxidants, glycerol and fatty acids to generate multifunctional amphiphiles with potential applications in food, pharmaceutical and cosmetic industry. PMID- 29339814 TI - Long-lived hot-carrier light emission and large blue shift in formamidinium tin triiodide perovskites. AB - A long-lived hot carrier population is critical in order to develop working hot carrier photovoltaic devices with efficiencies exceeding the Shockley-Queisser limit. Here, we report photoluminescence from hot-carriers with unexpectedly long lifetime (a few ns) in formamidinium tin triiodide. An unusual large blue shift of the time-integrated photoluminescence with increasing excitation power (150 meV at 24 K and 75 meV at 293 K) is displayed. On the basis of the analysis of energy-resolved and time-resolved photoluminescence, we posit that these phenomena are associated with slow hot carrier relaxation and state-filling of band edge states. These observations are both important for our understanding of lead-free hybrid perovskites and for an eventual future development of efficient lead-free perovskite photovoltaics. PMID- 29339815 TI - MCL-1 is a prognostic indicator and drug target in breast cancer. AB - Analysis of publicly available genomic and gene expression data demonstrates that MCL1 expression is frequently elevated in breast cancer. Distinct from other pro survival Bcl-2 family members, the short half-life of MCL-1 protein led us to investigate MCL-1 protein expression in a breast cancer tissue microarray and correlate this with clinical data. Here, we report associations between high MCL 1 and poor prognosis in specific subtypes of breast cancer including triple negative breast cancer, an aggressive form that lacks targeted treatment options. Deletion of MCL-1 in the mammary epithelium of genetically engineered mice revealed an absolute requirement for MCL-1 in breast tumorigenesis. The clinical applicability of these findings was tested through a combination of approaches including knock-down or inhibition of MCL-1 to show triple-negative breast cancer cell line dependence on MCL-1 in vitro and in vivo. Our data demonstrate that high MCL-1 protein expression is associated with poor outcome in breast cancer and support the therapeutic targeting of MCL-1 in this disease. PMID- 29339816 TI - Dinuclear PhosphoiminoBINOL-Pd Container for Malononitrile: Catalytic Asymmetric Double Mannich Reaction for Chiral 1,3-Diamine Synthesis. AB - A phosphoiminoBINOL ligand was designed to form a dinuclear metal complex that could hold a malononitrile molecule. The dinuclear bis(phosphoimino)binaphthoxy Pd2(OAc)2 complex catalyzed a double Mannich reaction of N-Boc-imines with malononitrile to give chiral 1,3-diamines with high enantioselectivity. The rational asymmetric catalyst, which smoothly introduces the first coupling product to the second coupling reaction while avoiding the reverse reaction, facilitates the over-reaction into a productive reaction process. PMID- 29339817 TI - Cooperating with machines. AB - Since Alan Turing envisioned artificial intelligence, technical progress has often been measured by the ability to defeat humans in zero-sum encounters (e.g., Chess, Poker, or Go). Less attention has been given to scenarios in which human machine cooperation is beneficial but non-trivial, such as scenarios in which human and machine preferences are neither fully aligned nor fully in conflict. Cooperation does not require sheer computational power, but instead is facilitated by intuition, cultural norms, emotions, signals, and pre-evolved dispositions. Here, we develop an algorithm that combines a state-of-the-art reinforcement-learning algorithm with mechanisms for signaling. We show that this algorithm can cooperate with people and other algorithms at levels that rival human cooperation in a variety of two-player repeated stochastic games. These results indicate that general human-machine cooperation is achievable using a non trivial, but ultimately simple, set of algorithmic mechanisms. PMID- 29339818 TI - Development and optimization of a differentiated airway epithelial cell model of the bovine respiratory tract. AB - Cattle are subject to economically-important respiratory tract infections by various bacterial and viral pathogens and there is an urgent need for the development of more realistic in vitro models of the bovine respiratory tract to improve our knowledge of disease pathogenesis. In the present study, we have optimized the culture conditions in serum-free medium that allow bovine bronchial epithelial cells (BBECs) grown at an air-liquid interface to differentiate into a three-dimensional epithelium that is highly representative of the bovine airway. Epidermal growth factor was required to trigger both proliferation and differentiation of BBECs whilst retinoic acid was also essential for mucociliary differentiation. Triiodothyronine was demonstrated not to be important for the differentiation of BBECs. Oxygen concentration had a minimal effect although optimal ciliation was achieved when BBECs were cultured at 14% oxygen tension. Insert pore-density had a significant effect on the growth and differentiation of BBECs; a high-pore-density was required to trigger optimum differentiation. The established BBEC model will have wide-ranging applications for the study of bacterial and viral infections of the bovine respiratory tract; it will contribute to the development of improved vaccines and therapeutics and will reduce the use of cattle in in vivo experimentation. PMID- 29339819 TI - Ancient Human Migrations to and through Jammu Kashmir- India were not of Males Exclusively. AB - Jammu and Kashmir (J&K), the Northern most State of India, has been under represented or altogether absent in most of the phylogenetic studies carried out in literature, despite its strategic location in the Himalayan region. Nonetheless, this region may have acted as a corridor to various migrations to and from mainland India, Eurasia or northeast Asia. The belief goes that most of the migrations post-late-Pleistocene were mainly male dominated, primarily associated with population invasions, where female migration may thus have been limited. To evaluate female-centered migration patterns in the region, we sequenced 83 complete mitochondrial genomes of unrelated individuals belonging to different ethnic groups from the state. We observed a high diversity in the studied maternal lineages, identifying 19 new maternal sub-haplogroups (HGs). High maternal diversity and our phylogenetic analyses suggest that the migrations post-Pleistocene were not strictly paternal, as described in the literature. These preliminary observations highlight the need to carry out an extensive study of the endogamous populations of the region to unravel many facts and find links in the peopling of India. PMID- 29339820 TI - Histone Variant MacroH2A1 Plays an Isoform-Specific Role in Suppressing Epithelial-Mesenchymal Transition. AB - Epithelial-Mesenchymal Transition (EMT) is a biological program that plays key roles in various developmental and pathological processes. Although much work has been done on signaling pathways and transcription factors regulating EMT, the epigenetic regulation of EMT remains not well understood. Histone variants have been recognized as a key group of epigenetic regulators. Among them, macroH2A1 is involved in stem cell reprogramming and cancer progression. We postulated that macroH2A1 may play a role in EMT, a process involving reprogramming of cellular states. In this study, we demonstrate that expression of macroH2A1 is dramatically reduced during EMT induction in immortalized human mammary epithelial cells (HMLE). Moreover, ectopic expression of the macroH2A1.1 isoform, but not macroH2A1.2, can suppress EMT induction and reduce the stem-like cell population in HMLE. Interestingly, macroH2A1.1 overexpression cannot revert stable mesenchymal cells back to the epithelial state, suggesting a stage specific role of macroH2A1.1 in EMT. We further pinpointed that the function of macroH2A1.1 in EMT suppression is dependent on its ability to bind the NAD+ metabolite PAR, in agreement with the inability to suppress EMT by macroH2A1.2, which lacks the PAR binding domain. Thus, our work discovered a previously unrecognized isoform-specific function of macroH2A1 in regulating EMT induction. PMID- 29339823 TI - Phosphate insensitive aminophosphonate mineralisation within oceanic nutrient cycles. AB - Many areas of the ocean are nutrient-poor yet support large microbial populations, leading to intense competition for and recycling of nutrients. Organic phosphonates are frequently found in marine waters, but require specialist enzymes for catabolism. Previous studies have shown that the genes that encode these enzymes in marine systems are under Pho regulon control and so are repressed by inorganic phosphate. This has led to the conclusion that phosphonates are recalcitrant in much of the ocean, where phosphorus is not limiting despite the degradative genes being common throughout the marine environment. Here we challenge this paradigm and show, for the first time, that bacteria isolated from marine samples have the ability to mineralise 2 aminoethylphosphonate, the most common biogenic marine aminophosphonate, via substrate-inducible gene regulation rather than via Pho-regulated metabolism. Substrate-inducible, Pho-independent 2-aminoethylphosphonate catabolism therefore represents a previously unrecognised component of the oceanic carbon, nitrogen and phosphorus cycles. PMID- 29339822 TI - Relationship between brachial-ankle and heart-femoral pulse wave velocities and the rapid decline of kidney function. AB - The impact of brachial-ankle pulse wave velocity (baPWV) and heart-femoral pulse wave velocity (hfPWV) on rapid decline of estimated glomerular filtration rate (eGFR) has been inconclusive. The database of a multicenter prospective study of 2238 patients in Korea enrolled from 2011 to 2016 was reviewed. After excluding patients with missing baPWV (n = 257) and eGFR change (n = 180), the study included 1801 non-dialysis chronic kidney disease (CKD) patients. The eGFR change <-5ml/min/1.73 m2/year was defined as rapid decline. During a mean of 2.2 years, the mean eGFR change was -3.6 ml/min/1.73 m2/year, and 31.6% of patients were classified as having rapid decline. Older age, causes of CKD, increased heart rate, systolic blood pressures, and proteinuria were associated with the highest baPWV quintile. In multivariate logistic regression analyses, the odds of a rapid decline in eGFR was 1.9 times higher in the fifth quintile than in the first quintile (P = 0.013). In a subset with baPWV and hfPWV (n = 1182), high baPWV was associated with rapid eGFR decline only when accompanied by a high hfPWV. These findings suggest that central and peripheral PWVs may simultaneously affect rapid eGFR decline. PMID- 29339821 TI - Cigarette smoking is associated with an altered vaginal tract metabolomic profile. AB - Cigarette smoking has been associated with both the diagnosis of bacterial vaginosis (BV) and a vaginal microbiota lacking protective Lactobacillus spp. As the mechanism linking smoking with vaginal microbiota and BV is unclear, we sought to compare the vaginal metabolomes of smokers and non-smokers (17 smokers/19 non-smokers). Metabolomic profiles were determined by gas and liquid chromatography mass spectrometry in a cross-sectional study. Analysis of the 16S rRNA gene populations revealed samples clustered into three community state types (CSTs) ---- CST-I (L. crispatus-dominated), CST-III (L. iners-dominated) or CST IV (low-Lactobacillus). We identified 607 metabolites, including 12 that differed significantly (q-value < 0.05) between smokers and non-smokers. Nicotine, and the breakdown metabolites cotinine and hydroxycotinine were substantially higher in smokers, as expected. Among women categorized to CST-IV, biogenic amines, including agmatine, cadaverine, putrescine, tryptamine and tyramine were substantially higher in smokers, while dipeptides were lower in smokers. These biogenic amines are known to affect the virulence of infective pathogens and contribute to vaginal malodor. Our data suggest that cigarette smoking is associated with differences in important vaginal metabolites, and women who smoke, and particularly women who are also depauperate for Lactobacillus spp., may have increased susceptibilities to urogenital infections and increased malodor. PMID- 29339824 TI - Oral microbiota of periodontal health and disease and their changes after nonsurgical periodontal therapy. AB - This study examined the microbial diversity and community assembly of oral microbiota in periodontal health and disease and after nonsurgical periodontal treatment. The V4 region of 16S rRNA gene from DNA of 238 saliva and subgingival samples of 21 healthy and 48 diseased subjects was amplified and sequenced. Among 1979 OTUs identified, 28 were overabundant in diseased plaque. Six of these taxa were also overabundant in diseased saliva. Twelve OTUs were overabundant in healthy plaque. There was a trend for disease-associated taxa to decrease and health-associated taxa to increase after treatment with notable variations among individual sites. Network analysis revealed modularity of the microbial communities and identified several health- and disease-specific modules. Ecological drift was a major factor that governed community turnovers in both plaque and saliva. Dispersal limitation and homogeneous selection affected the community assembly in plaque, with the additional contribution of homogenizing dispersal for plaque within individuals. Homogeneous selection and dispersal limitation played important roles, respectively, in healthy saliva and diseased pre-treatment saliva between individuals. Our results revealed distinctions in both taxa and assembly processes of oral microbiota between periodontal health and disease. Furthermore, the community assembly analysis has identified potentially effective approaches for managing periodontitis. PMID- 29339826 TI - Using intracellular markers to identify a novel set of surface markers for live cell purification from a heterogeneous hIPSC culture. AB - Human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs) can provide sources for midbrain dopaminergic (mDA) neural progenitors (NPCs) for cell therapy to treat Parkinson's disease (PD) patients. However, the well-known line-to-cell line variability in the differentiation capacity of individual cell lines needs to be improved for the success of this therapy. To address this issue, we sought to identify mDA NPC specific cell surface markers for fluorescence activated cell sorting (FACS). Through RNA isolation after sorting for NPCs based on staining for cell-specific transcription factors followed by microarray, we identified two positive cell surface markers (CORIN and CD166) and one negative cell surface marker (CXCR4) for mDA NPC sorting. These three markers can enrich floor plate NPCs to 90% purity, and the sorted NPCs more efficiently differentiate to mature dopaminergic neurons compared to unsorted or CORIN+ alone mDA NPCs. This surface marker identification strategy can be used broadly to facilitate isolation of cell subtypes of interest from heterogeneous cultures. PMID- 29339825 TI - Corallivory and the microbial debacle in two branching scleractinians. AB - The grazing activity by specific marine organisms represents a growing threat to the survival of many scleractinian species. For example, the recent proliferation of the corallivorous gastropod Drupella now constitutes a critical case in all South-East Asian waters. If the damaging effects caused by this marine snail on coral polyps are relatively well known, the indirect incidence of predation on coral microbial associates is still obscure and might also potentially impair coral health. In this study, we compared the main ecological traits of coral associated bacterial and viral communities living in the mucus layer of Acropora formosa and Acropora millepora, of healthy and predated individuals (i.e., colonized by Drupella rugosa), in the Bay of Van Phong (Vietnam). Our results show a substantial impact of the gastropod on a variety of microbiological markers. Colonized corals harbored much more abundant and active epibiotic bacteria whose community composition shifted toward more pathogenic taxa (belonging to the Vibrionales, Clostridiales, Campylobacterales, and Alteromonadales orders), together with their specific phages. Viral epibionts were also greatly influenced by Drupella corallivory with spectacular modifications in their concentrations, life strategies, genotype richness, and diversity. Novel and abundant circular Rep-encoding ssDNA viruses (CRESS-DNA viruses) were detected and characterized in grazed corals and we propose that their occurrence may serve as indicator of the coral health status. Finally, our results reveal that corallivory can cause severe dysbiosis by altering virus bacteria interactions in the mucus layer, and ultimately favoring the development of local opportunistic infections. PMID- 29339827 TI - The impact of SO2 on wine flavanols and indoles in relation to wine style and age. AB - Wine has one of the broadest chemical profiles, and the common oenological practice of adding the antioxidant and antimicrobial sulfur dioxide has a major impact on its metabolomic fingerprint. In this study, we investigated novel discovered oenological reactions primarily occurring between wine metabolites and sulfur dioxide. The sulfonated derivatives of epicatechin, procyanidin B2, indole acetic acid, indole lactic acid and tryptophol were synthesized and for the first time quantified in wine. Analysis of 32 metabolites in 195 commercial wines (1986 2016 vintages) suggested that sulfonation of tryptophan metabolites characterised white wines, in contrast to red wines, where sulfonation of flavanols was preferred. The chemical profile of the oldest wines was strongly characterised by sulfonated flavanols and indoles, indicating that could be fundamental metabolites in explaining quality in both red and white aged wines. These findings offer new prospects for more precise use of sulfur dioxide in winemaking. PMID- 29339828 TI - Fish consumption and depression in Korean adults: the Korea National Health and Nutrition Examination Survey, 2013-2015. AB - BACKGROUND/OBJECTIVES: There is a growing body of evidence that supports the potential role of fish consumption in relation to depression, but the data in Korean population is scarce. Thus, we examined the association between fish consumption and depression in Korean adults. SUBJECTS/METHODS: We conducted a cross-sectional study in 9183 Korean adults aged 19-64 years who participated in the 6TH Korea National Health and Nutrition Examination Survey (2013-2015), which is a large nationally representative study of Korean population. Fish consumption and depression status were assessed using questionnaires. Multivariable logistic regression models were used to compute odds ratios (ORs) and 95% confidence intervals (CIs) for physician-diagnosed clinical depression. RESULTS: Out of the 9183 subjects, 389 (4.2%) were diagnosed with depression. After adjusting for potential confounders, the multivariable-adjusted ORs for clinical depression across fish consumption were 1.00 (reference) for <1 time/week, 0.76 (95% CI: 0.56-1.04) for 1-3 times/week and 0.52 (95% CI: 0.37-0.74) for >=4 times/week (P for trend = 0.0005). The inverse association for >=4 times/week of fish consumption was stronger in women (OR = 0.44, 95% CI: 0.29-0.67, P for trend < .0001), but there was no significant association in men. CONCLUSIONS: Our findings suggest that high consumption of fish is associated with lower odds of depression in Korean adults, particularly in women. These results warrant further prospective studies to verify the association between fish consumption and risk of depression in Korean adults. PMID- 29339829 TI - Associations of the dietary approaches to stop hypertension (DASH) diet with pregnancy complications in Project Viva. AB - BACKGROUND/OBJECTIVES: The Dietary Approaches to Stop Hypertension (DASH) diet has been shown to improve cardiometabolic outcomes in non-pregnant populations. Little is known regarding the impact of this diet on health during pregnancy. The objective of this research is to examine associations of adherence to the DASH diet with hypertensive disorders of pregnancy (HDP) and other pregnancy outcomes. SUBJECTS/METHODS: We conducted analyses with data that came from 1760 women in Project Viva, a Boston-area longitudinal cohort recruited in early pregnancy 1999 2002. We derived a DASH score using data from a food frequency questionnaire (FFQ) administered at median 11.1 weeks gestation. Next, we used multivariable linear regression models that accounted for the woman's age at enrollment, pre pregnancy body mass index (BMI), education, smoking habits, race/ethnicity, gestational weight gain (GWG) up until the time of the FFQ, and total energy intake to examine associations of the DASH score with HDP, gestational diabetes, preterm delivery (<37 weeks), birth size, and GWG from FFQ to delivery. Models for HDP and GDM were additionally mutually adjusted for each other. Because pre pregnancy weight status may modify these relationships, we tested for interactions between pre-pregnancy BMI and the DASH score. RESULTS: Mean +/- SD age of the women was 32.2 +/- 4.9 years; 71.9% were white. Overall, the DASH diet score (mean: 24.0, SD: 5.0) was not associated with any of the pregnancy outcomes or complications. However, we found a positive association between the DASH diet and subsequent GWG among women who were obese before pregnancy (0.19 [95% CI: 0.05, 0.34], P <= 0.05 kg higher GWG per 1 unit DASH score). CONCLUSIONS: Adherence to DASH diet during early pregnancy does not appear to be protective against HDP or other adverse pregnancy outcomes. PMID- 29339830 TI - Differential association of dietary carbohydrate intake with metabolic syndrome in the US and Korean adults: data from the 2007-2012 NHANES and KNHANES. AB - BACKGROUND/OBJECTIVES: The risk factors for metabolic syndrome may differ between Western and Asian countries due to their distinct dietary cultures. However, few studies have directly compared macronutrient intake and its association with the risk of metabolic syndrome in the US and Korean adults using national survey data. SUBJECT/METHODS: Based on the data from the US and Korean versions of the 2007-2012 National Health and Nutrition Examination Survey (NHANES, KNHANES), a total of 3,324 American and 20,515 Korean adults were included. In both countries, dietary intake was measured using a 24-h dietary recall method and metabolic syndrome was defined using the National Cholesterol Education Program Adult Treatment Panel III criteria. RESULTS: The percentages of energy intake from carbohydrate, protein, and fat were 50:16:33 in the US adults and 66:15:19 in the Korean adults. Regarding metabolic abnormalities, Korean adults in the highest quintile of carbohydrate intake showed an increased risk of metabolic syndrome in men and women, with abnormalities of reduced HDL cholesterol and elevated triglyceride levels. In contrast, the US men showed no significant association with metabolic syndrome and its abnormalities, while the US women showed an increased risk of reduced HDL cholesterol and elevated triglycerides. CONCLUSIONS: A high carbohydrate intake is associated with metabolic abnormalities. As Korean adults consume more carbohydrate than American adults, stronger associations of dietary carbohydrate with metabolic syndrome were observed. Thus, further studies are necessary to elucidate the underlying mechanisms of different contributors to developing metabolic disease in Western and Asian populations. PMID- 29339831 TI - Detection of antimicrobial resistance genes associated with the International Space Station environmental surfaces. AB - Antimicrobial resistance (AMR) is a global health issue. In an effort to minimize this threat to astronauts, who may be immunocompromised and thus at a greater risk of infection from antimicrobial resistant pathogens, a comprehensive study of the ISS "resistome' was conducted. Using whole genome sequencing (WGS) and disc diffusion antibiotic resistance assays, 9 biosafety level 2 organisms isolated from the ISS were assessed for their antibiotic resistance. Molecular analysis of AMR genes from 24 surface samples collected from the ISS during 3 different sampling events over a span of a year were analyzed with Ion AmpliSeqTM and metagenomics. Disc diffusion assays showed that Enterobacter bugandensis strains were resistant to all 9 antibiotics tested and Staphylococcus haemolyticus being resistant to none. Ion AmpliSeqTM revealed that 123 AMR genes were found, with those responsible for beta-lactam and trimethoprim resistance being the most abundant and widespread. Using a variety of methods, the genes involved in antimicrobial resistance have been examined for the first time from the ISS. This information could lead to mitigation strategies to maintain astronaut health during long duration space missions when return to Earth for treatment is not possible. PMID- 29339833 TI - The 'known-knowns', and 'known-unknowns' of extracellular Nm23-H1/NDPK proteins. AB - Nucleoside diphosphate kinases (NDPKs/NDK/NME) are a multifunctional class of proteins conserved throughout evolution. Whilst many of the functions of NDPKs have been identified as intracellular, extracellular eukaryotic and prokaryotic NDPK proteins are also detected in multiple systems and have been implicated in both normal physiology and disease. This review provides an overview of where the field stands on our developing understanding of how NDPK proteins get out of cells, the physiological role of extracellular NDPKs, and how extracellular NDPKs may signal to cells. We will also discuss some of the unanswered questions, the 'known-unknowns' that particularly warrant further investigation. PMID- 29339832 TI - CLOCKDelta19 mutation modifies the manner of synchrony among oscillation neurons in the suprachiasmatic nucleus. AB - In mammals, the principal circadian oscillator exists in the hypothalamic suprachiasmatic nucleus (SCN). In the SCN, CLOCK works as an essential component of molecular circadian oscillation, and ClockDelta19 mutant mice show unique characteristics of circadian rhythms such as extended free running periods, amplitude attenuation, and high-magnitude phase-resetting responses. Here we investigated what modifications occur in the spatiotemporal organization of clock gene expression in the SCN of ClockDelta19 mutants. The cultured SCN, sampled from neonatal homozygous ClockDelta19 mice on an ICR strain comprising PERIOD2::LUCIFERASE, demonstrated that the Clock gene mutation not only extends the circadian period, but also affects the spatial phase and period distribution of circadian oscillations in the SCN. In addition, disruption of the synchronization among neurons markedly attenuated the amplitude of the circadian rhythm of individual oscillating neurons in the mutant SCN. Further, with numerical simulations based on the present studies, the findings suggested that, in the SCN of the ClockDelta19 mutant mice, stable oscillation was preserved by the interaction among oscillating neurons, and that the orderly phase and period distribution that makes a phase wave are dependent on the functionality of CLOCK. PMID- 29339834 TI - Use of multicolor fluorescence in situ hybridization to detect deletions in clinical tissue sections. AB - A variety of laboratory methods are available for the detection of deletions of tumor suppressor genes and losses of their proteins. The clinical utility of fluorescence in situ hybridization (FISH) for the identification of deletions of tumor suppressor genes has previously been limited by difficulties in the interpretation of FISH signal patterns. The first deletion FISH assays using formalin-fixed paraffin-embedded tissue sections had to deal with a significant background level of signal losses affecting nuclei that are truncated by the cutting process of slide preparation. Recently, more efficient probe designs, incorporating probes adjacent to the tumor suppressor gene of interest, have increased the accuracy of FISH deletion assays so that true chromosomal deletions can be readily distinguished from the false signal losses caused by sectioning artifacts. This mini-review discusses the importance of recurrent tumor suppressor gene deletions in human cancer and reviews the common FISH methods being used to detect the genomic losses encountered in clinical specimens. The use of new probe designs to recognize truncation artifacts is illustrated with a four-color PTEN FISH set optimized for prostate cancer tissue sections. Data are presented to show that when section thickness is reduced, the frequency of signal truncation losses is increased. We also provide some general guidelines that will help pathologists and cytogeneticists run routine deletion FISH assays and recognize sectioning artifacts. Finally, we summarize how recently developed sequence-based approaches are being used to identify recurrent deletions using small DNA samples from tumors. PMID- 29339835 TI - Obtaining high quality transcriptome data from formalin-fixed, paraffin-embedded diagnostic prostate tumor specimens. AB - Prognostic genomic biomarkers that can be measured at diagnosis to aid choice of treatment options are unavailable for most common cancers. This is due in part to the poor quality and quantity of available diagnostic specimens for discovery research and to limitations in genomic technologies. Recent technical advances now enable high-density molecular analyses using suboptimal biological specimens. Here we describe the optimization of a transcriptome-specific protocol for use with formalin-fixed, paraffin-embedded (FFPE) diagnostic prostate cancer (PrCa) specimens. We applied the Ion AmpliSeq Transcriptome Human Gene Expression Kit (AmpliSeq Kit) to RNA samples extracted from 36 tumor-enriched and 16 adjacent normal tissues (ADJNT) from 37 FFPE PrCa specimens over a series of eight pilot studies, incorporating protocol modifications from Pilots 2 to 5. Data quality were measured by (1) the total number of mapped reads; (2) the percentage of reads that mapped to AmpliSeq target regions (OnTarget%); (3) the percentage of genes on the AmpliSeq panel with a read count >=10 (TargetsDetected%); and (4) comparing the gene read-count distribution of the prostate tissue samples with the median gene read-count distribution of cell line-derived RNA samples. Modifications incorporated into Pilot study 5 provided gene expression data equivalent to cell line-derived RNA samples. These modifications included the use of freshly cut slides for macrodissection; increased tissue section thickness (8 um); RNA extraction using the RecoverAll Total Nucleic Acid Isolation Kit for FFPE (ThermoFisher); 18 target amplification cycles; and processing six samples per Ion PI chip. This protocol will facilitate the discovery of prognostic biomarkers for cancer by allowing researchers to exploit previously underutilized diagnostic FFPE specimens. PMID- 29339836 TI - The role of metabolic enzymes in mesenchymal tumors and tumor syndromes: genetics, pathology, and molecular mechanisms. AB - The discovery of mutations in genes encoding the metabolic enzymes isocitrate dehydrogenase (IDH), succinate dehydrogenase (SDH), and fumarate hydratase (FH) has expanded our understanding not only of altered metabolic pathways but also epigenetic dysregulation in cancer. IDH1/2 mutations occur in enchondromas and chondrosarcomas in patients with the non-hereditary enchondromatosis syndromes Ollier disease and Maffucci syndrome and in sporadic tumors. IDH1/2 mutations result in excess production of the oncometabolite (D)-2-hydroxyglutarate. In contrast, SDH and FH act as tumor suppressors and genomic inactivation results in succinate and fumarate accumulation, respectively. SDH deficiency may result from germline SDHA, SDHB, SDHC, or SDHD mutations and is found in autosomal-dominant familial paraganglioma/pheochromocytoma and Carney-Stratakis syndrome, describing the combination of paraganglioma and gastrointestinal stromal tumor (GIST). In contrast, patients with the non-hereditary Carney triad, including paraganglioma, GIST, and pulmonary chondroma, usually lack germline SDH mutations and instead show epigenetic SDH complex inactivation through SDHC promoter methylation. Inactivating FH germline mutations are found in patients with hereditary leiomyomatosis and renal cell cancer (HLRCC) syndrome comprising benign cutaneous/uterine leiomyomas and renal cell carcinoma. Mutant IDH, SDH, and FH share common inhibition of alpha-ketoglutarate-dependent oxygenases such as the TET family of 5-methylcytosine hydroxylases preventing DNA demethylation, and Jumonji domain histone demethylases increasing histone methylation, which together inhibit cell differentiation. Ongoing studies aim to better characterize these complex alterations in cancer, the different clinical phenotypes, and variable penetrance of inherited and sporadic cancer predisposition syndromes. A better understanding of the roles of metabolic enzymes in cancer may foster the development of therapies that specifically target functional alterations in tumor cells in the future. Here, the physiologic functions of these metabolic enzymes, the mutational spectrum, and associated functional alterations will be discussed, with a focus on mesenchymal tumor predisposition syndromes. PMID- 29339837 TI - Validation of the Brief International Cognitive Assessment for Multiple Sclerosis in Japan. AB - Background: The Brief International Cognitive Assessment for MS (BICAMS) is a practical battery for measuring cognitive function in multiple sclerosis (MS). Objectives: We aimed to validate a Japanese version of the BICAMS in patients with MS and healthy controls. Methods: The Symbol Digit Modalities Test (SDMT), the California Verbal Learning Test-Second Edition (CVLT2) and the Brief Visuospatial Memory Test Revised (BVMTR) were administered to 156 patients with MS and 126 healthy controls (HCs). The BICAMS was re-administered in a subset of 27 MS patients and 30 HCs. Results: The mean (+/-SD) raw scores in the MS and HC groups were as follows: SDMT: MS 47.9 +/- 14.0, HC 61.0 +/- 9.5; CVLT2: MS 48.6 +/- 12.6, HC 55.7 +/- 10.5; BVMTR: MS 23.5 +/- 8.4, HC 28.3 +/- 5.4, respectively, and significant differences were found between the two groups on all tests (p < 0.0001). Cohen's d values were 1.07, 0.60, and 0.67 in SDMT, CVLT2, and BVMTR, respectively. The test-retest reliability coefficients for each test were as follows: SDMT: r = 0.93; CVLT2: r = 0.82; and BVMTR: r = 0.77 (p < 0.0001). Conclusions: This study provides results that support the reliability and validity of the BICAMS in Japan. PMID- 29339838 TI - Force and Scale Dependence of the Elasticity of Self-Assembled DNA Bottle Brushes. AB - As a model system to study the elasticity of bottle-brush polymers, we here introduce self-assembled DNA bottle brushes, consisting of a DNA main chain that can be very long and still of precisely defined length, and precisely monodisperse polypeptide side chains that are physically bound to the DNA main chains. Polypeptide side chains have a diblock architecture, where one block is a small archaeal nucleoid protein Sso7d that strongly binds to DNA. The other block is a net neutral, hydrophilic random coil polypeptide with a length of exactly 798 amino acids. Light scattering shows that for saturated brushes the grafting density is one side chain per 5.6 nm of DNA main chain. According to small-angle X-ray scattering, the brush diameter is D = 17 nm. By analyzing configurations of adsorbed DNA bottle brushes using AFM, we find that the effective persistence of the saturated DNA bottle brushes is Peff = 95 nm, but from force-extension curves of single DNA bottle brushes measured using optical tweezers we find Peff = 15 nm. The latter is equal to the value expected for DNA coated by the Sso7d binding block alone. The apparent discrepancy between the two measurements is rationalized in terms of the scale dependence of the bottle-brush elasticity using theory previously developed to analyze the scale-dependent electrostatic stiffening of DNA at low ionic strengths. PMID- 29339839 TI - Trends in trauma-related mortality among adolescents: A 6 year snapshot from a teaching hospital's post mortem data. AB - Introduction: The aim is to explore the trends in trauma mortality in children aged 0-18 years can help to co-ordinate resources toward research and programs to reduce the burden. Methods: This is a retrospective study carried out on adolescents <=18 years of age autopsied according to the attorney request at Forensic Medicine & Toxicology department of King George's Medical University, Lucknow, India in the period from January 1st, 2009 to December 31st, 2014. Results: There were 9160 deaths from all causes in children <=18 years old, 7747 of which were due to trauma related causes, with a female predominance of 1.3:1. The age distribution revealed that 65.8% of deaths occurred in the 10-18 age group. Road traffic accidents (RTA) was the most prevalent cause (3635 deaths - 46.92%), followed by asphyxia (1128 deaths - 14.56%) and sexual assault (649 deaths - 8.37%). Asphyxia/suffocation was the major cause of injury with 31.96% of deaths within group <1 year; asphyxia (28.66%) and transport-related injuries (32.27%) were more predominant in the 1-4 age group; transport-related deaths were frequent in the 5-9 age group (45.14%), 10-14 age group (55.68%) and in the group 15-18 age group (51.69%). Regarding times of death, 61% occurred at the scene, 5.6% during pre-hospital care, 26.2% occurred at the hospital within the first 24 h after admission, and the remaining 7.6% of deaths occurred after 24 h after admission to the hospital. When we analyzed the deaths according to the intent, homicides occurred in 16% of cases. Unintentional injuries occurred in 69% of deaths and self-inflicted injuries were identified in 15% cases. Conclusions: Findings show that there was a predominance of deaths in children and adolescents males, between 15 and 18 years old, mainly from road traffic accidents. This study highlights the burden of trauma caused mortalities in children, which requires instant action. PMID- 29339840 TI - Complex knee injury scenario in tertiary level care in North India: An epidemiological study. AB - : Floating knee injury has been considered as one of the severe orthopedic injury, and is often associated with major systemic trauma involving other organs. Objective: To identify the incidence of floating knee injury, severity of injury and associated orthopaedic and non-orthopaedic injury. Methods: Epidemiologic study conducted from 1 Jan 2014 to 31 Dec 2014. Results: A total of 136 cases with floating knee injury were registered. Modified Fraser classification showed 58 patients had type 1, 74 had type 2 and 4 had type 3 floating knees. 119(87.5%) patients had open fractures and Gustilo-Anderson type IIIA(29.4%) being the commonest. No Mortality was found. 16 (11.76%) of floating knees had to undergo amputation of afflicted limb. Conclusion: Statics of such data would be helpful in planning and preparing ourselves as healthcare professionals to prevent high mortality and morbidity/disability in floating knee injury. Study design: Retrospective Epidemiological. Level of Evidence: Level 4 (Case Study). PMID- 29339841 TI - Role of autologous non-vascularised intramedullary fibular strut graft in humeral shaft nonunions following failed plating. AB - Background: Non-union humeral shaft fractures are seen frequently in clinical practice at about 2-10% in conservative management and 30% in surgically operated patients. Osteosynthesis using dynamic compression plate (DCP), intramedullary nailing, locking compression plate (LCP), Ilizarov technique along with bone grafting have been reported previously. In cases of prior failed plate-screw osteosynthesis the resultant osteopenia, cortical defect, bone loss, scalloping around screws and metallosis, make the management of non-union more complicated. Fibular graft as an intramedullary strut is useful in these conditions by increasing screw purchase, union and mechanical stability. This study is a retrospective and prospective follow up of revision plating along with autologous non-vascularised intramedullary fibular strut graft (ANVFG) for humeral non unions following failed plate osteosynthesis. Materials and methods: Seventy eight cases of nonunion humeral shaft fractures were managed in our institute between 2008 and 2015. Of these, 57 cases were failed plate osteosynthesis, in which 15 cases were infected and 42 cases were noninfected. Out of the 78 cases, bone grafting was done in 55 cases. Fibular strut graft was used in 22 patients, of which 4 cases were of primary nonunion with osteoporotic bone. Applying the exclusion criteria of infection and inclusion criteria of failed plate osteosynthesis managed with revision plating using either LCP or DCP and ANVFG, 17 cases were studied. The mean age of the patients was 40.11 yrs (range: 26-57 yrs). The mean duration of non-union was 4.43 yrs (range: 0.5-14 yrs). The mean follow-up period was 33.41 months (range: 12-94 months). The average length of fibula was 10.7 cm (range: 6-15 cm). Main outcome measurements included bony union by radiographic assessment and pre- and postoperative functional evaluation using the DASH (Disabilities of the Arm, Shoulder and Hand) score. Results: Sixteen out of 17 fractures united following revision plating and fibular strut grafting. Average time taken for union was 3.5 months (range: 3-5 months). Complications included one each of implant failure with bending, transient radial nerve palsy and transient ulnar nerve palsy. No case had infection, graft site morbidity or peroneal nerve palsy. Functional assessment by DASH score improved from 59.14 (range: 43.6-73.21) preoperatively to 23.39 (range: 8.03-34.2) postoperatively (p = 0.0003). Conclusion: The results of our study indicate that revision plating along with ANVFG is a reliable option in humeral diaphyseal non unions with failed plate-screw osteosynthesis providing adequate screw purchase, mechanical stability and high chances of union with good functional outcome. PMID- 29339842 TI - The clinico-radiological outcome of open reduction and internal fixation of displaced scaphoid fractures in the adult age group. AB - Background: Scaphoid fracture is the most common among carpal bone fractures, frequently imperceptible on initial radiographs. Tendency of scaphoid fracture to undergo in non-union makes it an important challenging injury for all orthopaedic surgeons. Displaced scaphoid fracture has high non-union rate in conservative management asserting the need to explore operative treatment. Materials and method: A prospective study was conducted in our institution in thirty patients in 20 to 50 year age group, for displaced scaphoid fracture (<30 days duration). Patient were followed up at every 4 week interval for 6 month and then three monthly for total duration of 18 months. At each follow up clinical and functional outcome was measured by Mayo wrist score and Patient rated wrist evaluation, and radiological outcome was measured in terms of union. Results: Mayo wrist score showed satisfactory outcome at 8 week, and good and excellent outcome at 12 week and 16 week period. Patient rated wrist score showed improvement in clinical and functional result at three month period. Conclusions: The use of open reduction and internal fixation by Herbert screw in acute displaced scaphoid fracture has good clinical, functional, and radiological outcome, and associated with early recovery. PMID- 29339843 TI - Distal radius re-fracture with bending of implant and neurovascular compromise. AB - Peri-implant fractures of the wrist are uncommon, and usually present as stress fractures distal to the site of the implant. We report an unusual case where the radius has fractured beneath a plate, causing bending and deformity of the implant. This prevented reduction of the fracture under sedation, so urgent intervention became necessary due to neurovascular compromise. PMID- 29339844 TI - The risk of deep vein thrombosis in total joint patients compared to orthopaedic trauma patients: Need for new prevention guidelines. AB - Background: The development of Deep Vein Thrombosis (DVT) is a major concern following orthopaedic surgery. No study has yet to compare the rate and risk factors for DVT between total joint and orthopaedic trauma patients. To evaluate if DVT prophylaxis for trauma should differ from total joints, we explored the rate and risk factors for DVT between both cohorts. Methods: Using a CPT code search from 2005 to 2013 in the ACS-NSQIP database, 150,657 orthopaedic total joint patients and 44,594 orthopaedic trauma patients were identified. DVT complications, patient demographics, preoperative comorbidities, and surgical characteristics were collected for each patient. A chi-squared test was used to compare the risk factors for DVT between orthopaedic trauma and total joint patients. A multivariable logistic regression model was built to adjust for comorbidities for each cohort. Results: The rate of DVT diagnosis in the total joint population was 0.8% (N = 1186) and 0.98% (N = 432) in the orthopaedic trauma population (p = 0.57). After controlling for individual comorbidities, dyspnea, peripheral vascular disease, and renal failure were significant risk factors for DVT in total joint patients (p < 0.05), whereas age, ascites and steroid use were significant risk factors for DVT in orthopaedic trauma patients (p < 0.05). Conclusions: Historically, the risks for DVT in total joints have been emphasized, yet based on our results, the incidence of DVT is the same for orthopaedic trauma. However, the risk factors varied. It is therefore important to consider specialty-specific DVT prophylaxis for orthopaedic trauma patients in order to improve care and reduce postoperative complications. PMID- 29339845 TI - Incidence of spinal fractures in the Netherlands 1997-2012. AB - : : To determine time trends of emergency department (ED) visits, hospitalization rates, spinal cord lesions and characteristics of patients with spinal fractures in the Netherlands. METHODS: In an observational database study we used the Dutch Injury Surveillance System to analyse spinal fracture-related ED visits, hospitalization rates and spinal cord lesions between 1997 and 2012. RESULTS: The total number of ED visits associated with spinal fractures increased from 4,507 in 1997 to 9,690 in 2012 (115% increase). The increase in the total number of fractures occurred in all age groups independently of gender. However, incidence rates increased more strongly with age and were higher in young males and ageing females. The hospitalization rate of diagnosed spinal fractures remained stable between 62 and 67%. The incidence of spinal cord lesions varied between 13.8 and 20.3 per million of the population over a period of 15 years. CONCLUSION: Spinal fracture-related ED visits are increasing in the Dutch population, independently of age or gender. The hospitalization rate and the absolute numbers of spinal cord lesions have remained stable over a period of 15 years. These findings are relevant for public health decision-making and resource allocation. PMID- 29339846 TI - Ankle arthrodesis-Open versus arthroscopic: A systematic review and meta analysis. AB - Objectives: Our objective was to perform a systematic review of the literature and conduct a meta-analysis to investigate the outcomes of open versus arthroscopic methods of ankle fusion. Methods: In accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement standards, we performed a systematic review. Electronic databases MEDLINE, EMBASE, CINAHL and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched to identify randomised and non-randomised studies comparing outcomes of arthroscopic and open ankle arthrodesis. The Newcastle-Ottawa scale was used to assess the methodological quality and risk of bias of the selected studies. Fixed-effect or random-effects models were applied to calculate pooled outcome data. Results: We identified one prospective cohort study and 5 retrospective cohort studies, enrolling a total of 286 patients with ankle arthritis. Our analysis showed that open ankle fusion was associated with a lower fusion rate (OR 0.26, 95% CI 0.13-0.52, P = 0.0002), longer tourniquet time (MD 16.49, 95% CI 9.46-23.41, P < 0.00001), and longer length of stay (MD 1.60,95% CI 1.10-2.10, P < 0.00001) compared to arthroscopic ankle fusion; however, there was no significant difference between two groups in terms of infection rate (OR 2.41, 95% CI 0.76-7.64, P = 0.14), overall complication rate (OR: 1.54, 95% CI 0.80 2.96, P = 0.20), and operation time (MD 4.09, 95% CI -2.49-10.66, P = 0.22). The between-study heterogeneity was high for tourniquet time but low or moderate for other outcomes. The direction of the effect sizes remains unchanged throughout sensitivity analyses. Conclusions: The best available evidence demonstrates that arthroscopic ankle fusion may be associated with a higher fusion rate, shorter tourniquet time, and shorter length of stay compared to open ankle fusion. We found no significant difference between two groups in terms of infection rate, overall complication rate, and operation time. The best available evidence is not adequately robust to make definitive conclusions. Long-term results of the comparative efficacy of arthroscopic ankle fusion over open ankle fusion are not currently available. Further high quality randomised controlled trials that are adequately powered are required. PMID- 29339847 TI - Giant extraskeletal osteochondroma of foot. A case report with review of literature. PMID- 29339848 TI - Habitual patellar dislocation in children: Results of surgical treatment by modified four in one technique. AB - Background: Habitual patellar dislocation is a rare condition affecting children. The growth plates are open in children and any surgical intervention should take that in to consideration. We are describing a modified four in one technique for habitual patellar dislocation, which is a soft tissue procedure without the use of any implant. Method: In this study we included 6 children (4 females and 2 males) with open growth plates, which were diagnosed with habitual patellar dislocation. The average age of the patients were 9.6 years (range 5-13 years). Our technique included lateral retinaculum release, vastus medialis obliques (VMO) advancement, partial patellar tendon transposition and reconstruction of medial patellofemoral ligament (MPFL). Patients were evaluated with Kujala scoring pre and post operatively. The average follow up period was 12 months (range 7-24 months). Results: There were no recurrence of patellar instability in any of the cases. The mean Kujala score was 48 before surgery and it improved to 95 after 12 months of average follow-up after surgery. Conclusion: We conclude that our method of treatment of habitual patellar dislocation by using modified four in one technique in children with open physis reproduced excellent functional outcome. It is simple, cheap and does not require any image guidance. Therapeutic study: Level of evidence IV. PMID- 29339849 TI - Can an exostosis be free floating without any continuity to the underlying bone: A diagnostic dilemma. AB - : Osteochondroma or exostosis is the most common primary bone tumor containing both bone and cartilage. Soft tissue osteochondromas have been described at various locations, however, to the best of our knowledge, there is only a single case report of a soft tissue osteochondroma around the femoral neck. We, hereby report second such case. CASE REPORT: A forty year old female presented with swelling on medial aspect of left thigh since four years. Radiographs showed a large mass at the inferior surface of the left femoral neck. CT scan revealed a well defined lobulated mass lesion involving muscles of adductor compartment of thigh. MRI showed lobulated periarticular, intramuscular, non enhancing lesion isointense to the bone, but without any continuity to the adjacent femur. Histopathology of the excised lesion turned out to be osteochondroma with origin from soft tissue. This case highlights an important differential diagnosis to be considered whenever an ossified mass is located in soft tissue. PMID- 29339850 TI - Giant cell tumour of tendon sheath and synovial membrane: A review of 26 cases. AB - Aim: Aim of our study is to highlight the incidence and benign nature of Giant cell tumour of tendon sheath and need for complete removal, thus minimizing the chances of recurrence. Material and methods: A total of 26 cases of Giant cell tumour of tendon sheath operated in the department of Orthopaedics, Patna Medical College & Hospital, Patna from 2003 to 2010 were included in this study. The surgery was performed after clinical evaluation of the lesion and Fine Needle Aspiration Cytology (FNAC). The tumour underwent en bloc marginal excision. The patients were followed up for minimum two year. Results: Our study population consisted of 18 females and 8 males. The mean age at the time of surgery was 38.3 years (range, 18-62 years). Twenty three cases were found in the 3rd and 4th decade. Twenty two cases involved upper extremity and only 4 cases in lower extremity. MRI was done in 2 cases where diagnosis was in doubt. Bony indentation on X-ray film was found in 7 cases and thorough curettage of cortical shell was done. All the cases were treated by marginal excision. Three cases developed post operative stiffness but regained full range of movement with physiotherapy. Sensory impairment was seen in 3 cases. Recurrence occurred in 2 case and they were treated by repeat marginal excision. Conclusion: Meticulous en-masse marginal excision of the giant cell tumour of tendon sheath in blood less field using magnification is the treatment of choice. PMID- 29339851 TI - Self-Report of Behaviors to Manage Neurogenic Bowel and Bladder by Individuals with Chronic Spinal Cord Injury: Frequency and Associated Outcomes. AB - Background: The management of neurogenic bowel and bladder by individuals with spinal cord injury (SCI) often requires a complicated set of behaviors to optimize functioning and reduce complications. However, limited research is available to support the many recommendations that are made. Objective: To describe the occurrence of behaviors associated with the management of neurogenic bowel and bladder among individuals with chronic SCI and to explore whether relationships exist between the performance of those behaviors and outcomes related to health and quality of life. Methods: A survey was developed based on clinical guidelines to collect self-report information about the performance of specific behaviors associated with the management of neurogenic bowel and bladder by individuals with SCI. It was administered to 246 individuals with chronic SCI living in the community as part of a larger ongoing study. Results: Results suggest that the methods that those with SCI use to manage neurogenic bowel and bladder are multifaceted. Many methods are performed with significant consistency, but significant variations exist for some and are often associated with neurological status, methods of evacuation, and quality of life. Conclusion: Many people with SCI of long duration are not sure of the sources of recommendations for some of the management activities that they or their personal care assistants conduct. It is prudent for clinicians working with these people to review their recommendations periodically to ensure that they are current and understood. PMID- 29339852 TI - Resilience and Happiness After Spinal Cord Injury: A Qualitative Study. AB - Objective: The purpose of this study was to identify factors associated with resilience among individuals with spinal cord injury (SCI). Methods: Qualitative analyses were conducted of the written comments that were completed as part of a cross-sectional survey of individuals with SCI living in the community. More than 1,800 mail surveys were distributed to individuals identified as having a traumatic SCI through the records and/or membership lists of 4 organizations. Four hundred and seventy-five individuals completed and returned the survey, with approximately half (48.6%; n = 231) of respondents answering the open-ended question "Is there anything else you would like to tell us about your resilience or ability to 'bounce back' when you face a challenge?" Results: Analyses of these responses identified both specific resources and cognitive perspectives that are associated with perceived happiness. Responses fell within 8 general categories: resilience, general outlook on life, social support and social relationships, religion or faith in a higher power, mood, physical health and functioning (including pain), social comparisons, and resources. Nuanced themes within these categories were identified and were generally concordant with self reported level of happiness. Conclusion: A majority of respondents with SCI identified themselves as happy and explained their adjustment and resilience as related to personality, good social support, and a spiritual connection. In contrast, pain and physical challenges appeared to be associated with limited ability to bounce back. PMID- 29339853 TI - Impact of Health Behaviors and Health Management on Employment After SCI: Psychological Health and Health Management. AB - Objective: The purpose of this study was to examine the relationship between employment and psychological health and health management as described by individuals with spinal cord injury (SCI) who were employed at least once following injury. Methods: A qualitative approach used 6 focus groups at 2 sites with 44 participants who were at least 10 years post SCI. All had been employed at some point since injury. Heterogeneous and homogeneous groups were delineated based on specific characteristics, such as education, gender, or race. Group sessions followed a semi-structured interview format with questions about personal, environmental, and policy related factors influencing employment following SCI. All group sessions were recorded, transcribed, and coded into conceptual categories to identify topics, themes, and patterns. Inferences were drawn about their meaning. NVivo 10 software using the constant comparative method was used for data analysis. Results: Narratives discussed the relationship between employment and psychological and emotional health and health management. Four themes were identified: (1) adjustment and dealing with emotional reactions, (2) gaining self-confidence, (3) preventing burnout, and (4) attitudes and perspectives. Most themes reflected issues that varied based on severity of injury as well as stage of employment. Conclusions: Individuals with SCI who are successful in working following injury must determine how to perform the behaviors necessary to manage their health and prevent emotional or physical complications. The emotional consequences of SCI must be recognized and addressed and specific behaviors enacted in order to optimize employment outcomes. PMID- 29339854 TI - Development and Feasibility of Health Mechanics: A Self-Management Program for Individuals with Spinal Cord Injury. AB - Objective: We conducted a pilot study to examine the feasibility of administering an individual, in-person version of Health Mechanics, an innovative self management program designed to teach individuals with spinal cord injury (SCI) to maintain physical health and prevent secondary conditions. Methods: After baseline assessments, 27 participants were randomized using a 2:1 block design to either the experimental intervention or a usual care group. Thirteen of the 19 participants in the intervention group completed the program. Follow-up assessments were completed at 3 and 6 months after baseline. Results: Results suggest that the Health Mechanics intervention delivered in an in-person format was perceived as useful and relevant in addressing a diverse range of health issues with participants with a wide range of personal and impairment characteristics. However, attrition rates and barriers to recruitment suggested limitations in the acceptability of the format for this population. Conclusion: Additional research is needed to identify the populations that would most benefit from the program and the most efficacious context for administration. PMID- 29339855 TI - Locomotor Training in the Pediatric Spinal Cord Injury Population: A Systematic Review of the Literature. AB - Background: The restoration of walking ability in the spinal cord injury (SCI) population is an increasingly important goal in physical therapy. Locomotor training (LT) is often implemented with the aim to restore ambulation. At this point, there are no guidelines for LT in the pediatric SCI population. Objectives: The aim of this review is to further narrow the effects of LT to the pediatric SCI population and develop recommendations for pediatric LT. Methods: A thorough search was performed using the following databases: Scopus, CINAHL, PubMed, and Ovid. Studies were selected based on the following inclusion criteria: pediatric SCI population, articles published within last 10 years, human subjects, and LT. Studies looking at other neurological disorders and subjects who were not previously ambulatory were excluded. Five students and one Faculty Research Advisor from the university's Doctor of Physical Therapy Program evaluated the inclusion criteria, conducted a risk of bias assessment using the Downs and Black checklist, and extracted the results. Results: Six studies were selected for this review. They showed gains in distance, gait speed, walking independence, and participation. There were variations in results when comparing gains in injury level based on the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI). Conclusions: Currently there is insufficient evidence to determine the best clinical practice guidelines for rehabilitation using LT within the pediatric SCI population. PMID- 29339856 TI - Relationships Between Caregiver Characteristics and Health-Related Quality of Life Among Youth with Spinal Cord Injury. AB - Background: Past research has found a relationship between the mental health of parental caregivers and their children with spinal cord injury (SCI), but little is known about how other aspects of caregiver health and functioning impact health-related quality of life (HRQOL) of youth. Objective: The purpose of this study was to explore the importance of caregiver mental health, physical health, burden, and problem-solving skills in relation to children's physical and psychosocial HRQOL. Methods: Forty youths with SCI ages 7 to 17 years completed the PedsQLTM; primary caregivers completed standardized measures of mental and physical health, burden, and problem solving. We evaluated 2 hierarchical linear regression models predicting children's physical and psychosocial HRQOL. Results: The 40 youths were an average of 11.48 years (SD = 3.21), 62.5% were male, and 80% Caucasian. They had been injured an average of 6.90 years (SD = 3.92); 75% had paraplegia, and 61.5% had complete injuries. Most caregivers were mothers (85%), were married (60%), and had at least some college education (87.5%). Univariate analyses revealed that caregiver problem solving alone was related to children's physical HRQOL, and caregiver mental health, burden, and problem solving were related to children's psychosocial HRQOL. Regression analyses controlling for child age and injury level revealed effective caregiver problem solving (P < .01) was significantly related to greater child physical (Model R2 = 0.440) and psychosocial (Model R2 = 0.547) HRQOL. Conclusions: Although relationships should be explored longitudinally with larger samples, results indicate caregiver problem solving may be a reasonable target for intervention to improve HRQOL among youth with SCI. PMID- 29339857 TI - Comparison of Soleus H-Reflexes in Two Groups of Individuals With Motor Incomplete Spinal Cord Injury Walking With and Without a Walker. AB - Objective: To compare phase- and task-dependent H-reflex modulation in standing and walking in 2 spinal cord injury (SCI) groups with and without a walker. Methods: Fourteen subjects with American Spinal Injury Association Impairment Scale D SCI (40+/-10 years) participated. Tibial nerve was stimulated to evoke 15 H-reflexes (at M-wave 7%-13% of maximum-M). Results: H-reflex was greater in the walker group during stance (but not standing/swing). Conclusion: Differences in H reflex modulation between groups walking with and without a walker may be explained by sensory mechanism that enhances central excitation, difference in motor activation levels between groups, and other complex mechanisms that influence balance or stability. PMID- 29339858 TI - Examining How the Perception of Health Can Impact Participation and Autonomy Among Adults with Spinal Cord Injury. AB - Background: Studies examining participation as defined by the International Classification of Functioning, Disability and Health (ICF) as well as autonomy among the spinal cord injury population (SCI) are only starting to emerge. Little research has looked at how this population perceives their health status and the role this plays in active participation within their lives. Objective: This exploratory study was developed to determine whether the perception of health has an impact on participation and autonomy among adults with SCI. Methods: A convenience sample of adults with SCI currently receiving outpatient services from a rehabilitation hospital completed the online questionnaire. Forty-two subjects responded and were categorized into 2 groups: Group 1, positive perceived health, and Group 2, negative perceived health. The sample completed the Impact on Autonomy and Participation (IPA) that has 5 subscales (autonomy indoors, family role, autonomy outdoors, social life, and work/education) and demographic questions. Results: Multivariate analysis of variance (MANOVA) revealed that perceived health had a significant impact on family roles, autonomy outdoors, social life, and work/education. Perceived health did not have a significant impact on autonomy indoors. Conclusion: The perception of health may have an impact on participation and autonomy within the areas of family role, outdoors, work/education, and social life. Implications for rehabilitation are included. PMID- 29339859 TI - Life Space Assessment in Spinal Cord Injury. AB - Objectives: To examine the Life Space Assessment (LSA) in persons with spinal cord injury (SCI), exploring its psychometric properties, differences between persons with cervical versus thoracolumbar injuries, and cutoff score differentiating a restricted from an unrestricted life space. Method: We conducted a test-retest reliability study in a community setting involving 50 persons with SCI (25 injured above C7, 25 injured below T1). Data were collected in 2 phone interviews approximately 9 days apart using the LSA. Results: Mean LSA scores were 66 +/- 25 (n = 50): 62 +/- 23 for the cervical group, and 70 +/- 25 for the thoracolumbar group. Scores were not significantly different between phone interviews [t(49) = 0.379, p = .706] or between groups [t(48) = -1.214, p = .231]. Test-retest reliability intraclass correlation coefficient (ICC) was 0.876 (95% CI, 0.792-0.928). Spearman's rho correlations between the LSA and Reintegration to Normal Living Index total and subscores ranged from .509 to .538 (p < .001). LSA scores were normally distributed. The minimum detectable change was approximately 23 points. A cutoff score of 78.5 (sensitivity 76.9%, specificity 81.1%) differentiated between persons with a restricted from an unrestricted life space if equipment and personal assistance were not needed for mobility. If equipment was needed, the cutoff score was found to be 49 (sensitivity of 90%, specificity of 90%). Conclusions: The LSA is a reliable and valid measure of life space in persons with SCI and can be used to identify persons with a restricted life space who may be at increased risk of mobility disability. PMID- 29339860 TI - Early Access to Vocational Rehabilitation for Inpatients with Spinal Cord Injury: A Qualitative Study of Patients' Perceptions. AB - Background: A pilot early-intervention vocational rehabilitation program was conducted in Sydney, Australia, over a 2-year period. It was postulated that the early provision of integrated vocational rehabilitation services in the hospital settings for newly injured individuals would be well received and result in better employment and psychosocial health outcomes. Objective: The objective of this qualitative inquiry was to examine the perspectives of program participants who had completed the intervention about the timeliness, perceived value, and critical elements of the early intervention. Methods: A convenience sample of participants was selected by accessibility; participants were interviewed individually after discharge using a semi-structured approach. Transcripts of the interviews were created via audio recordings; interviews were transcribed verbatim, and the contents were analyzed thematically. Results: Thirteen participants aged from 19 to 60 years with varying levels of impairment and vocational backgrounds were interviewed from 7 to 21 months post injury. Overall, the early introduction of vocational rehabilitation services was well received and viewed positively. Emerging themes include sense of direction and distraction, advocacy, and support, with "hope" (early after injury) emerging as the overarching theme. Criticisms voiced about the program were that it was offered too early in the intensive care unit and there were competing interests and information overload in the early recovery phase. Conclusions: Vocational rehabilitation provided during inpatient rehabilitation appears appropriate, important, and valuable from patients' perspective. Early engagement results in feelings of hope and encourages patients to see the possibility of returning to work or education very early after injury, and it allows rehabilitation to be directed accordingly. PMID- 29339861 TI - Perceptions of Shared Decision Making Among Patients with Spinal Cord Injuries/Disorders. AB - Background: Individuals with spinal cord injuries/disorders (SCI/D) are interested in, and benefit from, shared decision making (SDM). Objective: To explore SDM among individuals with SCI/D and how demographics and health and SCI/D characteristics are related to SDM. Method: Individuals with SCI/D who were at least 1 year post injury, resided in the Chicago metropolitan area, and received SCI care at a Veterans Affairs (VA; n = 124) or an SCI Model Systems facility (n = 326) completed a mailed survey measuring demographics, health and SCI/D characteristics, physical and mental health status, and perceptions of care, including SDM, using the Combined Outcome Measure for Risk Communication and Treatment Decision-Making Effectiveness (COMRADE) that assesses decision making effectiveness (effectiveness) and risk communication (communication). Bivariate analyses and multiple linear regression were used to identify variables associated with SDM. Results: Participants were mostly male (83%) and White (70%) and were an average age of 54 years (SD = 14.3). Most had traumatic etiology, 44% paraplegia, and 49% complete injury. Veteran/civilian status and demographics were unrelated to scores. Bivariate analyses showed that individuals with tetraplegia had better effectiveness scores than those with paraplegia. Better effectiveness was correlated with better physical and mental health; better communication was correlated with better mental health. Multiple linear regressions showed that tetraplegia, better physical health, and better mental health were associated with better effectiveness, and better mental health was associated with better communication. Conclusion: SCI/D and health characteristics were the only variables associated with SDM. Interventions to increase engagement in SDM and provider attention to SDM may be beneficial, especially for individuals with paraplegia or in poorer physical and mental health. PMID- 29339862 TI - Posttraumatic Stress Symptoms Among Spinal Cord Injury Patients in Trauma: A Brief Report. AB - Background: Attention has recently focused on posttraumatic stress disorder (PTSD) among individuals with traumatic spinal cord injury (SCI). Purpose: To examine characteristics of individuals with and without symptoms of PTSD following acute SCI. Methods: Data were collected on 23 patients (age, 34.5 +/- 14.4 years) at a Level I trauma center (14.35 +/- 18.48 days following injury). Results: There were 52.2% (n = 12) who experienced symptoms of PTSD post injury, with a significant association in patients with a history of psychological disorders (p = .0094). Conclusion: Findings suggest that patients with SCI who present with PTSD symptoms in the acute trauma care settting should be provided with specific cognitive behavioral interventions. PMID- 29339864 TI - Current Management Strategies of Hydrocephalus in the Child With Open Spina Bifida. AB - Symptomatic hydrocephalus is a common condition associated with myelomeningocele (open spina bifida). Traditionally, hydrocephalus was treated with insertion of a ventriculo-peritoneal (VP) shunt. This has been the standard of treatment since the introduction of the Holter shunt valve for the VP shunt in the late 1950s. Now there are other treatments that offer alternatives to VP shunt diversion for hydrocephalus. This article is a review of hydrocephalus associated with myelomeningocele and its treatment options. Treatment in the form of a VP shunt, endoscopic third ventriculostomy (ETV), and conservative management are discussed. PMID- 29339865 TI - Response of Scoliosis in Children with Myelomeningocele to Surgical Release of Tethered Spinal Cord. AB - Objective: To examine the effect of surgical tethered cord release (TCR) on scoliosis in children with myelomeningocele. Methods: A retrospective review of 65 pediatric patients with myelomeningocele and TCR. The final sample consisted of 20 patients with scoliosis who were managed conservatively after TCR. Results: Average age at TCR was 6.2 years with average follow-up of 3.8 years. Scoliosis of 1 (5%) patient improved, 7 (35%) were stable, and 12 (60%) worsened (>=10 degrees ). Fifty percent of patients ultimately required definitive spinal surgery. TCR release delayed definitive spine surgery for an average of 3.2 years. Sixty-four percent of patients with curves less than or equal to 45 degrees had progression of their curves compared to 50% with curves greater than 45 degrees . For patients with curves less than or equal to 45 degrees , curves progressed in 80% of those younger than 10 years as compared to 25% of those older than 10 years. For patients with curves less than or equal to 45 degrees , 43% required definitive spine surgery as opposed to 83% with curves greater than 45 degrees . Level of neurological involvement (ie, lumbar versus thoracic) and age at untethering emerged as factors influencing the effects of TCR for patients with curves less than or equal to 45 degrees . Lumbar curves had more favorable results. Conclusion: Pediatric patients with myelomeningocele and scoliosis should be closely assessed and monitored. A selective approach for youth with lumbosacral level myelomeningocele and progressive curves less than or equal to 45 degrees may result in scoliosis stabilization and avoidance of definitive surgery. PMID- 29339863 TI - Prevention of Venous Thromboembolism in Individuals with Spinal Cord Injury: Clinical Practice Guidelines for Health Care Providers, 3rd ed.: Consortium for Spinal Cord Medicine. PMID- 29339866 TI - ADHD and Attention Problems in Children With and Without Spina Bifida. AB - Objectives: To identify differences in the diagnosis and treatment of attention deficit/hyperactivity disorder (ADHD) between typically developing children and children with spina bifida. Method: Sixty-eight children with spina bifida and 68 demographically matched, typically developing children participated in a larger, longitudinal study. Rates of maternal, paternal, and teacher reports of attention problems, as well as rates of maternal reports of ADHD diagnosis, diagnosing provider, pharmaceutical treatment, mental health treatment, and academic accommodations were obtained at 5 time points over a period of 8 years and were compared across groups. Results: Children with spina bifida were more likely to have an ADHD diagnosis and attention problems. Attention problems and ADHD diagnoses were first reported at earlier time points for children with spina bifida than typically developing children. Among children with ADHD or attention problems, children with spina bifida were more likely to be treated with medication, but they were just as likely to use mental health services and receive resource services at school. Conclusions: Children with spina bifida were diagnosed with ADHD and identified as having attention problems more frequently and at an earlier age. This finding could be due to earlier symptom development, greater parental awareness, or more contact with providers. Among those with ADHD or attention problems, stimulant medication was more likely to be prescribed to children with spina bifida, despite research that suggests it may not be as beneficial for them. Further research on the effectiveness of ADHD pharmacological treatment for children with spina bifida is recommended. PMID- 29339867 TI - Does the CDC Definition of Fever Accurately Predict Inflammation and Infection in Persons With SCI? AB - Background: Pneumonia and septicemia have the greatest impact on reduced life expectancy in persons with spinal cord injury (SCI). Fever is often the first presenting symptom of infection or inflammation. Thermoregulatory dysfunction in persons with SCI may preclude a typical febrile response to infection or inflammation and thus delay diagnostic workup. Objective: To determine the core temperature of persons with SCI in the setting of infection or inflammation and the frequency with which it meets criteria for the CDC definition of fever (>100.4 degrees F). Methods: Retrospective review of hospitalized SCI patients over 5 years with a diagnosis of infection or inflammation (DI), defined by serum leukocytosis. In this study, 458 persons with paraplegia (PP) and 483 persons with tetraplegia (TP) had 4,191 DI episodes. Aural temperatures (Tau) on the day of DI, 7 days prior, and 14 days afterwards were abstracted from medical records. Main outcome measures were average Tau at DI, frequency of temperatures >100.4 degrees F at DI, and average baseline temperatures before and after DI. Results: Average Tau at DI was 98.2 degrees F (+/-1.5) and 98.2 degrees F (+/-1.4) in the TP and PP groups, respectively, with only 11.6% to 14% of DI resulting in Tau >100.4 degrees F. Baseline temperatures ranged from 97.9 degrees F (+/-0.7) to 98.0 degrees F (+/-0.8). Conclusion: SCI persons with leukocytosis infrequently mount a fever as defined by the CDC, and baseline temperatures were subnormal (<98.6 degrees F). Thermoregulatory dysfunction likely accounts for these findings. Tau >100.4 degrees F is not a sensitive predictor of infection or inflammation in persons with SCI. Clinicians should be vigilant for alternative symptoms of infection and inflammation in these patients, so diagnostic workup is not delayed. PMID- 29339868 TI - Feasibility and Acceptability of Implementing Indirect Calorimetry Into Routine Clinical Care of Patients With Spinal Cord Injury. AB - Background: In the absence of reliable predictive equations, indirect calorimetry (IC) remains the gold standard for assessing energy requirements after spinal cord injury (SCI), but it is typically confined to a research setting. The purpose of this study is to assess the feasibility and acceptability of implementing IC into routine clinical care in an Australian SCI rehabilitation facility. Methods: Bedside IC (canopy hood) was performed, and patients completed an IC acceptability questionnaire (open-ended; yes/no; 5-point Likert scale). Fasted resting energy expenditure (REE) steady-state criteria were applied to assess data quality, and adherence to a test >=20 minutes was recorded. Staff were surveyed to assess impact of IC on usual care. Results: Of 35 eligible patients, 9 declined (7 reported claustrophobia). One patient could not be tested before discharge and 25 underwent IC (84% male, injury level C2-L2, AIS A-D). Anxiety prevented one patient from completing IC, while another failed to fast. The remaining 23 patients achieved a steady-state REE (>=5 consecutive minutes with <=10% coefficient of variation for VO2 and VCO2). Test-retest (n = 5) showed <10% variation in REE. Patients deemed the procedure acceptable, with 88% reporting a willingness to repeat IC. Eighty percent of patients and 90% of staff agreed it was acceptable for IC to be integrated into usual care. Conclusion: This study found that IC is a feasible and acceptable addition to the routine clinical care of patients recovering from SCI and may serve to improve accuracy of nutrition interventions for this patient population. PMID- 29339869 TI - Developing a Model of Care for Healing Pressure Ulcers With Electrical Stimulation Therapy for Persons With Spinal Cord Injury. AB - Background: Electrical stimulation therapy (EST) has been shown to be an effective therapy for managing pressure ulcers in individuals with spinal cord injury (SCI). However, there is a lack of uptake of this therapy, and it is often not considered as a first-line treatment, particularly in the community. Objective: To develop a pressure ulcer model of care that is adapted to the local context by understanding the perceived barriers and facilitators to implementing EST, and to describe key initial phases of the implementation process. Method: Guided by the Knowledge-to-Action (KTA) and National Implementation Research Network (NIRN) frameworks, a community-based participatory research (CBPR) approach was used to complete key initial implementation processes including (a) defining the practice, (b) identifying the barriers and facilitators to EST implementation and organizing them into implementation drivers, and (c) developing a model of care that is adapted to the local environment. Results: A model of care for healing pressure ulcers with EST was developed for the local environment while taking into account key implementation barriers including lack of interdisciplinary collaboration and communication amongst providers between and across settings, inadequate training and education, and lack of resources, such as funding, time, and staff. Conclusions: Using established implementation science frameworks with structured planning and engaging local stakeholders are important exploratory steps to achieve a successful sustainable best practice implementation project. PMID- 29339870 TI - The Spinal Cord Outcomes Partnership Endeavor (SCOPE) SCI Clinical Trials Tables. PMID- 29339871 TI - Foreword. PMID- 29339872 TI - Neural Control and Physiology of Sexual Function: Effect of Spinal Cord Injury. AB - Objective: To present the current understanding of normal anatomy, physiology, sexual physiology, pathophysiology and the consequential sexual changes and dysfunctions following a spinal cord injury (SCI). Methods: Narrative review of the latest literature. Results: Peripheral innervations of the pelvis involve 3 sets of efferent neurons coordinated though the pelvic plexus (somatic, thoracolumbar sympathetic, and sacral parasympathetic), and these are under cerebral descending excitatory and inhibitory control. SCI, depending on the level of lesion and completeness, can alter this cerebral control, affecting the psychological and reflexogenic potential for genital arousal and also ejaculation and orgasm. During arousal, nitric oxide is the main neurotransmitter for smooth muscle relaxation in both male and female erectile tissue. In men, erection, ejaculation, and orgasm are under separate neurological control and can be individually affected by SCI. Conclusions: Since sexual function is rated amongst the highest priorities by individuals living with SCI, methods employed to affect the neurological changes to maximize sexual neurophysiology prior to initiating medical therapies including paying attention to sexual sensate areas and visceral signals with mindfulness techniques, practicing body mapping, and sexual stimulation of sensate areas to encourage neuroplasticity. Attention should be paid to the biopsychosocial sexual contexts within which persons with SCI live to maximize their sexual and fertility rehabilitation. PMID- 29339873 TI - Cardiovascular Physiology and Responses to Sexual Activity in Individuals Living with Spinal Cord Injury. AB - Background: Spinal cord injury (SCI) may profoundly impact autonomic function producing a variable degree of dysfunction in cardiovascular, bronchopulmonary, sweating, bladder, bowel, and sexual function. The cardiovascular system is crucially important for sexual function, as it is responsible for blood flow shifts to cavernous and musculoskeletal tissue during sexual activity. This system is prone to 3 main abnormalities after SCI including low resting blood pressure (LRBP), orthostatic hypotension (OH), and autonomic dysreflexia (AD), all of which have important effects on sexual function. Methods: We review the current etiological mechanisms and manifestations of cardiovascular dysfunction after SCI and discuss how this is documented to impact sexual function in individuals living with SCI. Conclusions: All individuals with SCI at or above the T6 neurologic level have an increased risk of AD during sexual stimulation, with increasing risk associated with higher levels of injury and greater completeness of injury. AD can be silent, and individuals living with SCI should be aware of blood pressure values at baseline and during sexual activity. Clinicians performing vibrostimulation fertility procedures need to be aware of the risk of AD and consider pretreatment if needed. Researchers studying the cardiovascular response to sexual stimulation should consider continuous monitoring of blood pressure, as intermittent monitoring may underestimate true blood pressure values. PMID- 29339874 TI - Women's Sexual Health and Reproductive Function After SCI. AB - Sexual function and to a lesser extent reproduction are often disrupted in women with spinal cord injuries (SCI), who must be educated to better understand their sexual and reproductive health. Women with SCI are sexually active; they can use psychogenic or reflexogenic stimulation to obtain sexual pleasure and orgasm. Treatment should consider a holistic approach using autonomic standards to describe remaining sexual function and to assess both genital function and psychosocial factors. Assessment of genital function should include thoracolumbar dermatomes, vulvar sensitivity (touch, pressure, vibration), and sacral reflexes. Self-exploration should include not only clitoral stimulation, but also stimulation of the vagina (G spot), cervix, and nipples conveyed by different innervation sources. Treatments may consider PDE5 inhibitors and flibanserin on an individual basis, and secondary consequences of SCI should address concerns with spasticity, pain, incontinence, and side effects of medications. Psychosocial issues must be addressed as possible contributors to sexual dysfunctions (eg, lower self-esteem, past sexual history, depression, dating habits). Pregnancy is possible for women with SCI; younger age at the time of injury and at the time of pregnancy being significant predictors of successful pregnancy, along with marital status, motor score, mobility, and occupational scores. Pregnancy may decrease the level of functioning (eg, self-care, ambulation, upper-extremity tasks), may involve complications (eg, decubitus ulcers, weight gain, urological complications), and must be monitored for postural hypotension and autonomic dysreflexia. Taking into consideration the physical and psychosocial determinants of sexuality and childbearing allows women with SCI to achieve positive sexual and reproductive health. PMID- 29339875 TI - Reproductive Health of Men with Spinal Cord Injury. AB - Most men with spinal cord injury (SCI) are infertile due to a combination of erectile dysfunction, ejaculatory dysfunction, and abnormal semen quality. This article addresses issues that should be considered when managing the reproductive health of men with SCI. The authors present recommendations based on their decades of experience in managing the reproductive health of more than 1,000 men with SCI. Men with SCI face obstacles when pursuing sexual activity and/or biologic fatherhood. Hypogonadism and premature symptoms of aging may interfere with sexual function. Erectile dysfunction is prevalent in the SCI population, and treatments for erectile dysfunction in the general population are also effective in the SCI population. Most men with SCI cannot ejaculate with sexual intercourse. The procedures of penile vibratory stimulation (PVS) and/or electroejaculation (EEJ) are effective in obtaining an ejaculate from 97% of men with SCI. The ejaculate often contains sufficient total motile sperm to consider the assisted conception procedures of intrauterine insemination or even intravaginal insemination at home. If PVS and/or EEJ fail, sperm may be retrieved surgically from the testis or epididymis. Surgical sperm retrieval typically yields enough motile sperm only for in vitro fertilization with intracytoplasmic sperm injection. The majority of new cases of SCI occur in young men at the peak of their reproductive health. With proper medical management, these men can expect to experience active sexual lives and biologic fatherhood, if these are their goals. Numerous tools are available to physicians for helping these patients reach their goals. PMID- 29339876 TI - Sexuality in Pediatric Spinal Cord Injury. AB - Sexual development and sexuality in youth with pediatric spinal cord injury (SCI) are critical areas clinicians must be aware of and discuss when working with youth and their families. In addition to the general sexuality issues and challenges of adolescence and adult development, youth with SCI face unique physical and psychosocial issues. The goal of this article is to provide a developmentally based discussion of sexuality in individuals with SCI from infancy through emerging adulthood. An overview of psychosocial issues related to sexual development and sexuality are presented for each stage of sexual development along with recommendations for clinical practice, including patient and caregiver education and counseling. In order to establish expectations for youth with SCI, long-term outcomes related to sexuality and fertility of adults with pediatric-onset SCI are presented. PMID- 29339877 TI - A Multidisciplinary Approach to Sexual and Fertility Rehabilitation: The Sexual Rehabilitation Framework. AB - Many studies have identified improvement in sexual function as a priority for persons with spinal cord injury (SCI). Due to the various secondary sensory, motor, and autonomic consequences following SCI and due to the complexity of sexuality per se, this area can be overwhelming to many health care professionals. The literature indicate that sexual and fertility rehabilitation must be addressed in a biopsychosocial manner and include various disciplines. The multidisciplinary utilization of a Sexual Rehabilitation Framework (SRF) allows the medical and/or psychosocial factors that impede or improve sexual and reproductive function to be examined. The SRF is a user-friendly and simplified way to proactively address the major biopsychosocial areas of sexuality and to create a plan of action for the person with SCI. It is an adjunct tool to the full sexual history, and it encourages all disciplines involved in SCI rehabilitation to address the issue of sexual function in the same manner as they would other activities of daily living. Eight areas are included in the SRF: sexual drive/interest, sexual functioning, fertility and contraception, factors associated with the condition, motor and sensory influences, bladder and bowel influences, sexual self-view and self-esteem, and partnership issues. The use of the SRF is encouraged in both inpatient and outpatient settings. Multidisciplinary or interdisciplinary team work is encouraged in sexual and fertility rehabilitation to move clinicians toward providing proactive and comprehensive care for individuals with SCI or other chronic disabilities. PMID- 29339878 TI - Improving Sexual Satisfaction in Persons with Spinal Cord Injuries: Collective Wisdom. AB - Sexuality is an important part of life, and it is necessary for clinicians to have a specific format in which to address sexual issues with their patients. A systematic approach to working with patients with spinal cord injury (SCI) to improve their sexual functioning and response is presented. Nonjudgmental communication about sexual concerns is followed by a detailed pre- and postinjury medical, psychosocial, and sexual history. If preexisting sexual issues are present, it is recommended that the patient be referred for assessment and treatment of these separate from the patient's SCI-related concerns. Physical examination, with special attention to issues that could impact the patient's sexuality, is followed by a detailed neurologic assessment with specific attention to the T11-L2 and S3-5 spinal segments. Education of the patient with regard to his or her sexual potential and the need to be flexible in his or her sexual repertoire is followed by self-exploration and practice. Routine follow-up is suggested after patient's initial sexual exploration. Treatment of confounding and iatrogenic factors related to SCI is followed by more sexual experience. Afterwards the clinician is encouraged to use simple techniques to treat sexual issues and follow-up with the patient to assess the outcome. A structured program utilizing vibratory stimulation with or without midodrine is described as a way to achieve ejaculation and potentially orgasm, and techniques for treating severe autonomic dysreflexia are discussed. If these interventions do not alleviate the patient's sexual concerns, the clinician should refer the patient for more specialized consultation. PMID- 29339879 TI - How Do Iranian People with Spinal Cord Injury Understand Marriage? AB - Background: Spinal cord injury (SCI) is a life-altering experience. There is little information about the perspectives of people with SCI toward marriage. Purpose: To explore the understandings of Iranian adults with SCI about marriage. Methods: In this qualitative inquiry, using a semi-structured interview guide, we collected data from 53 single adults with SCI (41 men and 12 women) who were referred to the Brain and Spinal Cord Injury Research Center, Tehran University of Medical Sciences in Tehran. Barun and Clarke's thematic analysis approach was applied for data analysis. Results: "Marriage" was thematized in outer and inner scenarios. The outer scenario was explored in terms of physical disability identified as a seminal determinant in successful marriage. "Attractiveness," "able body for breadwinning," "sexually active," and "reproduction" were dominant concepts extracted from the participants' narratives. The participants' inner scenarios revealed that marriage would be welcomed if a potential partner accepted them as a "whole person" regardless of their SCI condition. Conclusion: The findings suggest that adults with SCI do not ignore or reject marriage, however it was not their life priority due to major concerns that they had internalized. Considering the quality of care, people with SCI must be reassured about their potential to get married. SCI-based sexuality education and premarital counseling support the patients in their postmarital lives. Our findings will provide decision makers and health providers with significant insight for utilizing culturally appropriate services for people with SCI. PMID- 29339881 TI - Erratum. AB - [This corrects the article on p. 247 in vol. 22.]. PMID- 29339880 TI - Description of Urological Surveillance and Urologic Ultrasonography Outcomes in a Cohort of Individuals with Long-Term Spinal Cord Injury. AB - Background: Individuals with spinal cord injury (SCI) have an increased risk of developing urological complications. Therefore, long-term routine urological surveillance is recommended. Objective: To describe urological surveillance in individuals with long-term SCI and to determine factors associated with urologic ultrasonography (UU) outcome. Methods: Wheelchair-dependent individuals with an SCI for 10 years or more were included. A medical assessment was done in 8 participating rehabilitation centers. The International Lower Urinary Tract Function Basic SCI Data Set was used to assess bladder-emptying methods and previous surgical procedures on the urinary tract. We studied urological surveillance: whether participants had routine urological checkups (including UU) and when latest urodynamic study was performed. Latest UU (performed <1 year ago) was retrieved or, when lacking, UU was performed as part of our study. Results: Median time since injury (TSI) was 22.0 years. Overall, 39% of the 282 participants did not have routine urological checkups and 33% never had a urodynamic study performed. UU data (N = 243) revealed dilatation of the upper urinary tract (UUT) in 4.5% of the participants and urinary stones in 5.7%. Abnormal UU outcome was associated with increasing TSI, nontraumatic SCI, and previous surgical bladder or UUT stone removal. UU outcome was not associated with routine urological checkups or type of bladder-emptying method. Conclusions: Over one-third of Dutch individuals with long-term SCI did not receive routine urological surveillance. UU outcome was not associated with routine urological checkups or type of bladder-emptying method. Further research on the indication and frequency of urological surveillance is recommended. PMID- 29339882 TI - Foreword. PMID- 29339885 TI - Consumer Feedback to Steer the Future of Assistive Technology Research and Development: A Pilot Study. AB - Objective: The overall objective of this project was to identify consumers' opinions of their needs and wants related to assistive technology (AT) in a systematic and quantitative manner via a questionnaire that can be used to validate existing and establish new research priorities. Methods: This pilot study describes questionnaire development, online implementation, and revisions considered to the questionnaire in preparation for conducting a nationwide survey. Data from a sample (N = 112) are presented. The pilot study was critical to refine the questions and ensure that meaningful information was being collected. Results: It was identified that revisions were warranted to provide more structure and allow for consumers to prioritize AT research efforts. Conclusion: The questionnaire results, although positively in favor of many of the technologies presented, are inconclusive to identify generalizable research priorities, thus expansion to a nationwide population is warranted. PMID- 29339886 TI - Step-Climbing Power Wheelchairs: A Literature Review. AB - Background: Power wheelchairs capable of overcoming environmental barriers, such as uneven terrain, curbs, or stairs, have been under development for more than a decade. Method: We conducted a systematic review of the scientific and engineering literature to identify these devices, and we provide brief descriptions of the mechanism and method of operation for each. We also present data comparing their capabilities in terms of step climbing and standard wheelchair functions. Results: We found that all the devices presented allow for traversal of obstacles that cannot be accomplished with traditional power wheelchairs, but the slow speeds and small wheel diameters of some designs make them only moderately effective in the basic area of efficient transport over level ground and the size and configuration of some others limit maneuverability in tight spaces. Conclusion: We propose that safety and performance test methods more comprehensive than the International Organization for Standards (ISO) testing protocols be developed for measuring the capabilities of advanced wheelchairs with step-climbing and other environment-negotiating features to allow comparison of their clinical effectiveness. PMID- 29339887 TI - Kinematics and Stability Analysis of a Novel Power Wheelchair When Traversing Architectural Barriers. AB - Background: Electric-powered wheelchairs (EPWs) are essential devices for people with disabilities for mobility and quality of life. However, the design of common EPWs makes it challenging for users to overcome architectural barriers, such as curbs and steep ramps. Current EPWs lack stability, which may lead to tipping the EPW causing injury to the user. An alternative Mobility Enhancement Robotic Wheelchair (MEBot), designed at the Human Engineering Research Laboratories (HERL), was designed to improve the mobility of, and accessibility for, EPW users in a wide variety of indoor and outdoor environments. Seat height and seat inclination can be adjusted using pneumatic actuators connected to MEBot's 6 wheels. Method: This article discusses the design and development of MEBot, including its kinematics, stability margin, and calculation of the center of mass location when performing its mobility applications of curb climbing/descending and attitude control. Motion capture cameras recorded the seat angle and joint motion of the 6 wheel arms during the curb climbing/descending process. The center of mass location was recorded over a force plate for different footprint configurations. Results: Results showed that the area of the footprint changed with the location of the wheels during the curb climbing/descending and attitude control applications. The location of the center of mass moved +/-30 mm when the user leaned sideways, and the seat roll and pitch angle were 0 degrees and +/ 4.0 degrees , respectively, during curb climbing and descending. Conclusion: Despite the user movement and seat angle change, MEBot maintained its stability as the center of mass remained over the wheelchair footprint when performing its mobility applications. PMID- 29339888 TI - Integration of Pneumatic Technology in Powered Mobility Devices. AB - Advances in electric motors, electronics, and control systems have enhanced the capability and drivability of electric power mobility devices over the last 60 years. Yet, battery technologies used in powered mobility devices (PMDs) have not kept pace. Recent advances in pneumatic technology, primarily the high torque, low speed design of rotary piston air motors, directly align with the needs of PMD. Pneumatic technology has advantages over battery-powered technology, including lighter weight, lower operating costs, decreased environmental impact, better reliability, and increased safety. Two prototypes were created that incorporated rotary piston air motors, high-pressure air tanks, and air-pressure regulators. Prototype 1 was created by modifying an existing electric PMD. Range tests were performed to determine the feasibility of pneumatic technology and the optimal combination of components to allow the longest range possible at acceptable speeds over ideal conditions. Using a 1.44 L air tank for feasibility testing, prototype 1 was capable of traveling 800 m, which confirmed the feasibility of pneumatic technology usage in PMDs. Prototype 2 was designed based on the testing results from prototype 1. After further optimization of prototype 2, the average maximum range was 3,150 m. Prototype 2 is up to 28.3% lighter than an equivalent size electric PMD and can be fully recharged in approximately 2 minutes. It decreases the cost of PMDs by approximately $1,500, because batteries do not need to be replaced over the lifetime of the device. The results provide justification for the use of pneumatic technology in PMDs. PMID- 29339889 TI - Performance Evaluation of a Mobile Touchscreen Interface for Assistive Robotic Manipulators: A Pilot Study. AB - Background: Assistive robotic manipulators (ARMs) have been developed to provide enhanced assistance and independence in performance of daily activities among people with spinal cord injury when a caregiver is not on site. However, the current commercial ARM user interfaces (UIs) may be difficult to learn and control. A touchscreen mobile UI was developed to overcome these challenges. Objective: The object of this study was to evaluate the performance between 2 ARM UIs, touchscreen and the original joystick, using an ARM evaluation tool (ARMET). Methods: This is a pilot study of people with upper extremity impairments (N = 8). Participants were trained on 2 UIs, and then they chose one to use when performing 3 tasks on the ARMET: flipping a toggle switch, pushing down a door handle, and turning a knob. Task completion time, mean velocity, and open interviews were the main outcome measurements. Results: Among 8 novice participants, 7 chose the touchscreen UI and 1 chose the joystick UI. All participants could complete the ARMET tasks independently. Use of the touchscreen UI resulted in enhanced ARMET performance (higher mean moving speed and faster task completion). Conclusions: Mobile ARM UIs demonstrated easier learning experience, less physical effort, and better ARMET performance. The improved performance, the accessibility, and lower physical effort suggested that the touchscreen UI might be an efficient tool for the ARM users. PMID- 29339890 TI - Further Development of a Robotic-Assisted Transfer Device. AB - Background: The task of performing transfers, such as from a wheelchair to a bed, has a high risk of injury to both the caregiver and the person being transferred. Although mechanical transfer devices can reduce these risks, these devices are not meant for use in the community and they still place strain on the caregiver when used. Purpose: The aim of this study is to describe feedback gathered from focus groups of potential users of the Robotic-Assisted Transfer Device (RATD) and describe design changes aimed at preparing the device for the next step in the development process. Method: The RATD was transferred to a newer electric powered wheelchair (EPW), key components were redesigned, and the control program was updated to increase the safety of the device. Two focus groups, one consisting of people with disabilities and the other consisting of clinicians and caregivers, were conducted to gather feedback from potential users. Results: Error checking, safety zones, a motor brake, and a new track helped increase the safety of the device. Sixty-three percent of the people with disabilities and 83% of caregivers surveyed said they would use the device. Conclusions: The results from the focus groups were positive and the design changes were successful, but more development is needed before the RATD can be marketed. PMID- 29339891 TI - Effect of Orthotic Gait Training with Isocentric Reciprocating Gait Orthosis on Walking in Children with Myelomeningocele. AB - Background: Mechanical orthoses are used to assist in standing and walking after neurological injury in children with myelomeningocele (MMC). Objectives: To evaluate the influence of orthotic gait training with an isocentric reciprocating gait orthosis (IRGO) on the kinematics and temporal-spatial parameters of walking in children with MMC. Methods: Five children with MMC were fitted with an IRGO. They walked at their own comfortable cadence using the orthosis. The hip joint angle, spatial temporal parameters, and compensatory motions were measured and analyzed. Results: Significant increases in walking speed and step length were demonstrated following orthotic gait training during walking with the IRGO. The sagittal plane hip range of motion was also significantly increased; however, the vertical and horizontal compensatory motions were significantly decreased. Conclusion: This study evaluated the influence of gait training with an IRGO on the kinematics and temporal spatial parameters in MMC children. The findings showed that orthotic gait training improved hip joint range of motion, increased walking speed and step length, and decreased lateral and vertical compensatory motions during level-ground walking trials. PMID- 29339892 TI - Care for Adults with Spina Bifida: Current State and Future Directions. AB - The care for adults with spina bifida is an important area to study. As increasing numbers of patients with spina bifida survive into adulthood, they expect to thrive and receive the best possible care into adulthood to maintain their health. Understanding the health needs in this emerging and changing population will help clinicians provide the best anticipatory care for adults with spina bifida and continue to improve outcomes. This will also impact pediatric care by improving the ability to determine preventive methods from early on and understand the impacts of pediatric care and decisions over the lifespan. PMID- 29339893 TI - Shoulder Functional Electrical Stimulation During Wheelchair Propulsion in Spinal Cord Injury Subjects. AB - Background: Subjects with spinal cord injury (SCI) propel their wheelchairs by generating a different level of muscle activity given their multiple deficits in muscle strength. Exercise training programs seem to be effective in improving wheelchair propulsion capacity. Functional electrical stimulation (FES) therapy is a complementary tool for rehabilitation programs. Objectives: To determine the accuracy of the synchronization between the FES activation and the push phase of the propulsion cycle by using hand pressure sensors that allow anterior deltoids activation when the hand is in contact with the pushrim. Methods: We analyzed 2 subjects, with injuries at C6 American Spinal Injury Association Impairment Scale (AIS) A and T12 AIS A. The stimulation parameters were set for a 30 Hz frequency symmetrical biphasic wave, 300 MUs pulse width. Data were collected as participants propelled the wheelchair over a 10-m section of smooth, level vinyl floor. Subjects were evaluated in a motion analysis laboratory (ELITE; BTS, Milan, Italy). Results: Subject 1 showed synchronization between the FES activation and the push phase of 87.5% in the left hand and of 80% in the right hand. Subject 2 showed synchronization of 95.1% in the left and of hand 94.9% in the right hand. Conclusion: Our study determined a high accuracy of a novel FES therapeutic option, showing the synchronization between the electrical stimulation and the push phase of the propulsion cycle. PMID- 29339894 TI - Exercise and Health-Related Risks of Physical Deconditioning After Spinal Cord Injury. AB - A sedentary lifestyle occurring soon after spinal cord injury (SCI) may be in contrast to a preinjury history of active physical engagement and is thereafter associated with profound physical deconditioning sustained throughout the lifespan. This physical deconditioning contributes in varying degrees to lifelong medical complications, including accelerated cardiovascular disease, insulin resistance, osteopenia, and visceral obesity. Unlike persons without disability for whom exercise is readily available and easily accomplished, exercise options for persons with SCI are more limited. Depending on the level of injury, the metabolic responses to acute exercise may also be less robust than those accompanying exercise in persons without disability, the training benefits more difficult to achieve, and the risks of ill-considered exercise both greater and potentially irreversible. For exercise to ultimately promote benefit and not impose additional impairment, an understanding of exercise opportunities and risks if exercise is undertaken by those with SCI is important. The following monograph will thus address common medical challenges experienced by persons with SCI and typical modes and benefits of voluntary exercise conditioning. PMID- 29339897 TI - Exploration of the Personal Health Record as a Tool for Spinal Cord Injury Health Self-Management and Coordination of Care. AB - Background: A personal health record (PHR) is a collection of electronic health data drawn from multiple sources but managed by the patient. The PHR is a strategy that enables patients to be proactive in the coordination of their care. Objective: The purpose of this clinical improvement study was to discover what worked, what did not work, and what could be improved in the initial implementation of MyPHR, a PHR tailored to patients with spinal cord injury (SCI), to make it a useful tool for care coordination and health self-management. Methods: Five individuals with chronic (>1 year) SCI carried out trial use of MyPHR. Twelve hours of interactions, including screen navigation and think-aloud reflection, were recorded and analyzed using formative research, a qualitative method and type of case study research. Results: Two key themes emerged to guide the implementation of PHR technology: selectivity in the identification of information for the patient to track, and continual support and communication with the clinical team. Conclusion: Given the volume of electronic data available to patients with SCI, the data identified to import, manage, and keep current in a PHR have to be thoughtfully selected to make sure the patient is convinced of the worth of this data record and is willing to invest the time and effort it will take to maintain it. A PHR should be implemented with a deliberate focus on its function as a tool that patients and providers use together to expand communication as they work toward their common goal of optimizing health after SCI. PMID- 29339896 TI - Inflammatory Stress Effects on Health and Function After Spinal Cord Injury. AB - Background: Injury to the spinal cord produces immediate, adaptive inflammatory responses that can exacerbate the initial injury and lead to secondary damage. Thus far, researchers and clinicians have focused on modulating acute inflammation to preserve sensorimotor function. However, this singular approach risks overlooking how chronic inflammation negatively impacts the broader health of persons with a spinal cord injury (SCI). Objective: The aim of this monograph was to discuss interrelated processes causing persistent inflammatory stress after SCI, along with associated health risks. We review archetypal factors that contribute to a chronic inflammatory state, including response to injury, acute infection, and autonomic dysreflexia. Secondary complications producing and exacerbating inflammation are also discussed, including pain, depression, obesity, and injury to the integumentary and skeletal systems. Finally, we discuss the role of bacteria and the gut microbiome in this process and then conclude with a discussion on how a pro-inflammatory phenotype promotes an elevated risk for cardiovascular disease after injury. Conclusions: Effectively managing chronic inflammation should be a high priority for clinicians and researchers who seek to improve the health and life quality of persons with SCI. Chronic inflammation worsens secondary medical complications and amplifies the risk for cardiometabolic disorders after injury, directly impacting both the quality of life and mortality risk after SCI. Inflammation can worsen pain and depression and even hinder neurological recovery. It is, therefore, imperative that countermeasures to chronic inflammation are routinely considered from the point of initial injury and proceeding throughout the lifespan of the individual with SCI. PMID- 29339898 TI - Overground Locomotor Training in Spinal Cord Injury: A Performance-Based Framework. AB - Background: Locomotor training (LT) is the most commonly used treatment to improve walking performance following spinal cord injury (SCI). The advancement of LT treatments requires the addition of integrative models accounting for the numerous systems responsible for the recovery of walking function following SCI. Objective: This perspective monograph aims to (a) describe a performance-based framework for overground LT (OLT), (b) describe principles of adaptation and motor learning used to inform OLT program design, and (c) present an example OLT program based on the proposed framework. Methods: Individuals with chronic motor incomplete SCI (7 male, 1 female) classified according to the American Spinal Injury Association Impairment Scale (AIS) as C and D were included. OLT included two 90-minute sessions performed over 12 weeks for a total of 24 sessions. Outcomes measures included overground walking speed, walking economy, pulmonary oxygen uptake, and muscle oxygen extraction measured via near-infrared spectroscopy. Results: Preliminary findings demonstrate the potential of OLT, as describe here, to increase overground walking speed, improve walking economy, accelerate processes associated with oxygen delivery and utilization at the rest to-work transition, and lower oxygen extraction requirements of skeletal muscle during walking in individuals with chronic motor-incomplete SCI. Conclusion: The proposed framework offers a valuable template for LT program design in both clinical and research settings. Further research is necessary to better understand the effects of OLT and how principles of specificity, progressive overload, and variation within the performance-based framework can be manipulated to maximize function, health, and quality of life in SCI. PMID- 29339895 TI - Nutritional Health Considerations for Persons with Spinal Cord Injury. AB - Chronic spinal cord injury (SCI) often results in morbidity and mortality due to all-cause cardiovascular disease (CVD) and comorbid endocrine disorders. Several component risk factors for CVD, described as the cardiometabolic syndrome (CMS), are prevalent in SCI, with the individual risks of obesity and insulin resistance known to advance the disease prognosis to a greater extent than other established risks. Notably, adiposity and insulin resistance are attributed in large part to a commonly observed maladaptive dietary/nutritional profile. Although there are no evidence-based nutritional guidelines to address the CMS risk in SCI, contemporary treatment strategies advocate more comprehensive lifestyle management that includes sustained nutritional guidance as a necessary component for overall health management. This monograph describes factors in SCI that contribute to CMS risks, the current nutritional profile and its contribution to CMS risks, and effective treatment strategies including the adaptability of the Diabetes Prevention Program (DPP) to SCI. Establishing appropriate nutritional guidelines and recommendations will play an important role in addressing the CMS risks in SCI and preserving optimal long-term health. PMID- 29339899 TI - Clinician-Focused Overview of Bionic Exoskeleton Use After Spinal Cord Injury. AB - Spinal cord injury (SCI) resulting in paralysis of lower limbs and trunk restricts daily upright activity, work capacity, and ambulation ability, putting persons with an injury at greater risk of developing a myriad of secondary medical issues. Time spent in the upright posture has been shown to decrease the risk of these complications in SCI. Unfortunately, the majority of ambulation assistive technologies are limited by inefficiencies such as high energy demand, lengthy donning and doffing time, and poor gait pattern precluding widespread use. These limitations spurred the development of bionic exoskeletons. These devices are currently being used in rehabilitation settings for gait retraining, and some have been approved for home use. This overview will address the current state of available devices and their utility. PMID- 29339900 TI - Exoskeleton Training May Improve Level of Physical Activity After Spinal Cord Injury: A Case Series. AB - Objectives: To determine whether the use of a powered exoskeleton can improve parameters of physical activity as determined by walking time, stand up time, and number of steps in persons with spinal cord injury (SCI). Methods: Three men with complete (1 C5 AIS A and 2 T4 AIS A) and one man with incomplete (C5 AIS D) SCI participated in a clinical rehabilitation program. In the training program, the participants walked once weekly using a powered exoskeleton (Ekso) for approximately 1 hour over the course of 10 to 15 weeks. Walking time, stand up time, ratio of walking to stand up time, and number of steps were determined. Oxygen uptake (L/min), energy expenditure, and body composition were measured in one participant after training. Results: Over the course of 10 to 15 weeks, the maximum walking time increased from 12 to 57 minutes and the number of steps increased from 59 to 2,284 steps. At the end of the training, the 4 participants were able to exercise for 26 to 59 minutes. For one participant, oxygen uptake increased from 0.27 L/min during rest to 0.55 L/min during walking. Maximum walking speed was 0.24 m/s, and delta energy expenditure increased by 1.4 kcal/min during walking. Body composition showed a modest decrease in absolute fat mass in one participant. Conclusion: Exoskeleton training may improve parameters of physical activity after SCI by increasing the number of steps and walking time. Other benefits may include increasing energy expenditure and improving the profile of body composition. PMID- 29339901 TI - Influence of Reciprocating Link When Using an Isocentric Reciprocating Gait Orthosis (IRGO) on Walking in Patients with Spinal Cord Injury: A Pilot Study. AB - Background: Studies collectively imply that the reciprocal link has no effect on walking when using reciprocating gait orthoses (RGOs). There may be differences between the 2 configurations of the RGO (eg, isocentric reciprocating gait orthosis [IRGO] and IRGO without reciprocating link), but the specific benefits and problems encountered in their use must be understood. Purpose: To highlight more evidence for the mechanical function of the reciprocal link in RGOs used for walking by individuals with spinal cord injury (SCI). Methods: Nine people with SCI participated in this study. Gait analysis was performed in 2 conditions (walking with IRGO and walking with IRGO without reciprocating link) in a random order. The Vicon digital capture system was used to obtain kinematic data. Results: There were significant differences between each orthotic configuration in terms of speed of walking (p = .029), step length (p = .048), hip joint range of motion (ROM) (p <= .001), and lateral and vertical compensatory motions (p <= .001). There was no significant difference between each orthotic configuration in cadence (p = .162). Conclusion: The reciprocating link in IRGO improved the walking parameters in SCI patients. PMID- 29339902 TI - Study on the Effectiveness of Virtual Reality Game-Based Training on Balance and Functional Performance in Individuals with Paraplegia. AB - Objective: To determine whether there is any difference between virtual reality game-based balance training and real-world task-specific balance training in improving sitting balance and functional performance in individuals with paraplegia. Methods: The study was a pre test-post test experimental design. There were 30 participants (28 males, 2 females) with traumatic spinal cord injury randomly assigned to 2 groups (group A and B). The levels of spinal injury of the participants were between T6 and T12. The virtual reality game-based balance training and real-world task-specific balance training were used as interventions in groups A and B, respectively. The total duration of the intervention was 4 weeks, with a frequency of 5 times a week; each training session lasted 45 minutes. The outcome measures were modified Functional Reach Test (mFRT), t-shirt test, and the self-care component of the Spinal Cord Independence Measure-III (SCIM-III). Results: There was a significant difference for time (p = .001) and Time * Group effect (p = .001) in mFRT scores, group effect (p = .05) in t-shirt test scores, and time effect (p = .001) in the self care component of SCIM-III. Conclusions: Virtual reality game-based training is better in improving balance and functional performance in individuals with paraplegia than real-world task-specific balance training. PMID- 29339903 TI - Economic Consequences of an Implanted Neuroprosthesis in Subjects with Spinal Cord Injury for Restoration of an Effective Cough. AB - Objective: To determine if an implanted neuroprosthesis for restoration of an effective cough is less costly than conventional methods of respiratory management. Methods: Nonrandomized clinical trial of participants (N = 14) with spinal cord injury (SCI) using the Cough Stimulator device in the inpatient hospital setting for Cough Stimulator implantation and outpatient hospital or residence for follow-up. A neuroprosthesis was implanted for restoration of an effective cough. The annual costs associated with respiratory management, without (pre implantation) and with (post implantation) the neuroprosthesis, were examined over a 4-year period. Results: The total cost related to implantation of the Cough Stimulator was $59,891, with no maintenance costs over subsequent years. The incidence of respiratory tract infections and the need for caregiver support fell significantly following implantation. The costs associated with respiratory tract infections fell significantly from a mean of $36,406 +/- 11,855/year to $13,284 +/- 7,035/year (p < .05) pre and post implantation, respectively. Costs fell further to $8,817 +/- 5,990 and $4,467 +/- 4,404 following the 2nd and 3rd years post implantation (p < .05), respectively. The costs associated with caregiver support fell significantly from $25,312 +/- 8,019/year to $2,630 +/- 2,233/year (p < .05) pre and post implantation, respectively, and remained low in subsequent years (p < .05). Other costs related to secretion management fell significantly and remained low in subsequent years (p < .05). Break-even analysis demonstrated that this point was reached in the first year. Conclusion: The results of this investigation demonstrate that implantation and use of the Cough Stimulator resulted in significant reductions in the overall costs of respiratory management in this patient population. PMID- 29339904 TI - Epidemiology of Pediatric Traumatic and Acquired Nontraumatic Spinal Cord Injury in Ireland. AB - Objective: To examine the epidemiology of pediatric traumatic (TSCI) and acquired nontraumatic spinal cord injury (NTSCI) in Ireland. There are few studies reporting pediatric TSCI incidence and fewer of pediatric NTSCI incidence, although there are several case reports. As there is a single specialist rehabilitation facility for these children, complete population-level data can be obtained. Method: Retrospective review of prospectively gathered data in the Patient Administration System of the National Rehabilitation Hospital of patients age 15 years or younger at the time of SCI onset. Information was retrieved on gender, age, etiology, level of injury/AIS. Population denominator was census results from 1996, 2002, 2006, and 2011, rolled forward. Results: Since 2000, 22 children have sustained TSCI and 26 have sustained NTSCI. Median (IQR) age at TSCI onset was 6.3 (4.4) years, and at NTSCI onset it was 7.3 (8.1) years. Most common TSCI etiology was transportation (n = 10; 45.5%), followed by surgical complications (n = 8; 36.4%); most common injury type was complete paraplegia (n = 12; 54.5%) followed by incomplete paraplegia (n = 5; 22.7%). Most common NTSCI etiology was transverse myelitis (n = 11; 42.3%) followed by vascular (n = 5; 20%); most common injury type was incomplete paraplegia (n = 17; 65.4%) followed by incomplete tetraplegia (n = 6; 24%). Incidence of TSCI ranged from 0 to 3.1 per million per year; incidence of NTSCI ranged from 0 to 6.5 per million per year. Conclusion: Incidence of SCI in Ireland seems similar to or slightly lower than other developed countries. Injury patterns are also similar, considering variations in reporting methods. PMID- 29339905 TI - Review of the History of Non-traumatic Spinal Cord Dysfunction. AB - Background: The incidence of non-traumatic spinal cord dysfunction (SCDys) is reported to be higher than traumatic spinal cord injury (SCI) in many countries. No formal review of the history of SCDys has been published. Objective: This article aims to identify key highlights in the history of SCDys. Method: An electronic literature search was conducted (January 2017) using MEDLINE (1946 2016) and Embase (1974-2016) databases for publications regarding the history of SCDys. Publications on the history of SCI and a selection of neurology textbooks and books on the history of neurology were reviewed for potentially relevant references. The focus of the literature search was on identifying publications that detail key highlights regarding the history of the diagnosis and management of the most common SCDys conditions, as well as those of historical significance. Results: The electronic search of MEDLINE and Embase identified 11 relevant publications. The majority of publications included were identified from the authors' libraries and a selection of books on neurology and the history of neurology. Conclusions: This review outlines the history of SCDys, taking a broader historical perspective and covering the increasing awareness of the role of the spinal cord and knowledge of neuroanatomy. Key milestones in the history of the diagnosis and management of the most common SCDys conditions are presented. An appreciation of the history of SCDys increases our understanding of the large number of people who contributed to our current knowledge of these conditions and in some situations helps guide efforts regarding prevention of SCDys. PMID- 29339906 TI - Important Clinical Rehabilitation Principles Unique to People with Non-traumatic Spinal Cord Dysfunction. AB - Background: Non-traumatic spinal cord dysfunction (SCDys) is caused by a large range of heterogeneous etiologies. Although most aspects of rehabilitation for traumatic spinal cord injury and SCDys are the same, people with SCDys have some unique rehabilitation issues. Purpose: This article presents an overview of important clinical rehabilitation principles unique to SCDys. Methods: Electronic literature search conducted (January 2017) using MEDLINE and Embase (1990-2016) databases for publications regarding SCDys. The focus of the literature search was on identifying publications that present suggestions regarding the clinical rehabilitation of SCDys. Results: The electronic search of MEDLINE and Embase identified no relevant publications, and the publications included were from the authors' libraries. A number of important clinical rehabilitation principles unique to people with SCDys were identified, including classification issues, general rehabilitation issues, etiology-specific issues, and a role for the rehabilitation physician as a diagnostic clinician. The classification issues were regarding the etiology of SCDys and the International Standards for Neurological Classification of Spinal Cord Injury. The general rehabilitation issues were predicting survival, improvement, and rehabilitation outcomes; admission to spinal rehabilitation units, including selection decision issues; participation in rehabilitation; and secondary health conditions. The etiology specific issues were for SCDys due to spinal cord degeneration, tumors, and infections. Conclusions: Although there are special considerations regarding the rehabilitation of people with SCDys, such as the potential for progression of the underlying condition, functional improvement is typically significant with adequate planning of rehabilitation programs and special attention regarding the clinical condition of patients with SCDys. PMID- 29339907 TI - Trends, Challenges, and Opportunities Regarding Research in Non-traumatic Spinal Cord Dysfunction. AB - Background: Spinal cord dysfunction (SCDys) is caused by heterogeneous health conditions, and the incidence is increasing. Despite the growing interest in rehabilitation research for SCDys, research into SCDys faces many challenges. Objective: The objective of this project was to perform a clinical review of changes in SCDys research over the last 4 decades; identify challenges to conducting research in SCDys; and propose opportunities for improving research in SCDys. Methods: A triangulation approach was used for obtaining evidence: literature search (January 2017) using MEDLINE and Embase databases for publications in English (1974-2016) regarding SCDys; workshop discussions at the International Spinal Cord Society annual meeting, September 16, 2016, Vienna, Austria; and our collective expertise in SCDys clinical rehabilitation research. Results: There has been a substantial increase in publications on SCDys over the 4 decades, from 1,825 in 1974-1983 to 11,887 in the decade 2004-2013, along with an improvement in research methodology. Numerous challenges to research in SCDys rehabilitation were grouped into the following themes: (a) identification of cases; (b) study design and data collection; and (c) funding, preclinical, and international research. Opportunities for addressing these were identified. Conclusions: The increase in scientific publications on SCDys highlights the importance of this heterogeneous group among the research community. The overall lack of good quality epidemiological studies regarding incidence, prevalence, and survival in these patients serves as a benchmark for guiding improvements to inform evidence-based care and policy. PMID- 29339908 TI - Creation of an Algorithm to Identify Non-traumatic Spinal Cord Dysfunction Patients in Canada Using Administrative Health Data. AB - Background: The lack of consensus on the best methodology for identifying cases of non-traumatic spinal cord dysfunction (NTSCD) in administrative health data limits the ability to determine the burden of disease and provide evidence informed services. Objective: The purpose of this study is to develop an algorithm for identifying cases of NTSCD with Canadian health administrative databases using a case-based approach. Method: Data were provided by the Canadian Institute for Health Information that included all acute care hospital and day surgery (Discharge Abstract Database), ambulatory (National Ambulatory Care Reporting System), and inpatient rehabilitation records (National Rehabilitation Reporting System) of patients with neurological impairment (paraplegia, tetraplegia, and cauda equina syndrome) between April 1, 2004 and March 31, 2011. The approach to identify cases of NTSCD involved using a combination of diagnostic codes for neurological impairment and NTSCD etiology. Results: Of the initial cohort of 23,703 patients with neurological impairment, we classified 6,362 as the "most likely NTSCD" group (had a most responsible diagnosis or pre existing diagnosis of NTSCD and diagnosis of neurological impairment); 2,777 as "probable NTSCD" defined as having a secondary diagnosis of NTSCD, and 11,179 as "possible NTSCD" who had no NTSCD etiology diagnoses but neurological impairment codes. Conclusion: The proposed algorithm identifies an inpatient NTSCD cohort that is limited to patients with significant paralysis. This feasibility study is the first in a series of 3 that has the potential to inform future research initiatives to accurately determine the incidence and prevalence of NTSCD. PMID- 29339909 TI - Validation of Algorithm to Identify Persons with Non-traumatic Spinal Cord Dysfunction in Canada Using Administrative Health Data. AB - Background: Administrative health data, such as the hospital Discharge Abstract Database (DAD), can potentially be used to identify patients with non-traumatic spinal cord dysfunction (NTSCD). Algorithms utilizing administrative health data for this purpose should be validated before clinical use. Objective: To validate an algorithm designed to identify patients with NTSCD through DAD. Method: DAD between 2006 and 2016 for Southern Alberta in Canada were obtained through Alberta Health Services. Cases of NTSCD were identified using the algorithm designed by the research team. These were then validated by chart review using electronic medical records where possible and paper records where electronic records were unavailable. Measures of diagnostic accuracy including sensitivity, specificity, and positive and negative predictive values and 95% confidence intervals (CI) were computed. Results: Two hundred and eighty cases were identified to have both the administrative codes for neurological impairments and NTSCD etiology. Twenty-eight cases were excluded from analysis as 5 had inadequate medical record information, 17 had traumatic spinal cord injury, and 6 were considered "other" non-spinal cord conditions. Measures of diagnostic accuracy that were computed were sensitivity 97% (95% CI, 94%-98%), specificity 60% (95% CI, 47%-73%), positive predictive value (PPV) 92% (95% CI, 88%-95%), and negative predictive value (NPV) 80% (95% CI, 65%-90%). The most prevalent etiologies were degenerative (36.9%), infection (19.0%), oncology malignant (15.1%), and vascular (10.3%). Conclusion: Our algorithm has high sensitivity and PPV and satisfactory specificity and NPV for the identification of persons with NTSCD using DAD, though the limitations for using this method should be recognized. PMID- 29339910 TI - Characteristics of Non-traumatic Spinal Cord Dysfunction in Canada Using Administrative Health Data. AB - Background: There is a paucity of studies using administrative health data to examine the epidemiology, health care utilization, and outcomes for non-traumatic spinal cord dysfunction (NTSCD). Objective: The purpose of this study is to characterize discrete NTSCD cohorts using decision algorithms with Canadian health administrative databases. Method: Data were provided by the Canadian Institute for Health Information that included all acute care hospital, day surgery, ambulatory, and inpatient rehabilitation records of patients with neurological impairment between April 1, 2004 and March 31, 2011. Diagnostic codes for neurological impairment and NTSCD etiology were used to identify cases and classify 3 NTSCD groups (most likely, probable, and possible). Logistic regression identified factors related to inpatient rehabilitation admission within 7 days of discharge among the preferred group. Results: The most likely NTSCD group (n = 6,362) was significantly older and had a greater proportion of women and individuals with cauda equina lesions compared to the other 2 NTSCD groups (probable [n = 2,777] and possible [n = 11,179]; ps < .001). Factors associated with the likelihood of an inpatient rehabilitation admission included being older (odds ratio [OR], 1.01; 95% CI, 1.00-1.01), being female (OR, 1.18; 95% CI, 1.06-1.32), having paraplegia diagnosis compared to cauda equina (OR, 1.24; 95% CI, 1.09-1.41), residing in an urban area compared to a rural area (OR, 1.34; 95% CI, 1.13-1.58), having degenerative etiology compared to other (OR, 1.59; 95% CI, 1.41-1.80), and having an MRI on record compared to not (OR = 1.57; 95% CI, 1.39-1.76). Conclusion: Administrative data allow for ongoing surveillance of a population in a relatively cost-effective manner. Advancing our knowledge of NTSCD epidemiology, health outcomes, and system performance can inform policy and system planning. PMID- 29339911 TI - Nature of the Non-traumatic Spinal Cord Injury Literature: A Systematic Review. AB - Background: Non-traumatic SCI (NTSCI) etiologies represent a markedly heterogeneous cluster of conditions defined within the consensus NTSCI taxonomy. This meta-analysis assembles evidence about the occurrence of NTSCI and its clinical outcomes with respect to 6 research domains. Purpose: To investigate the quality and quantity of clinical NTSCI evidence published in the peer reviewed literature with reference to prognosis, diagnosis, intervention, process of care, methodology, and qualitative approaches. Methods: PubMed and MEDLINE OVID MeSH heading searches were conducted for 5 common-language NTSCI descriptors. Filters were English language and Entrez date (1997-2016). Filters also controlled for case reports, editorials or errata, and invited reviews. NTSCI etiologies incorrectly classified, animal studies, and multidimensional mapping studies were excluded. Full texts were retrieved and ranked for evidence quality according to PRISMA statement guidelines, or PEDro criteria. Data were extracted and simple descriptive statistics applied. Results: The search terms non traumatic and non traumatic SCI retrieved 282 articles, with 39 duplicates. After exclusion of 117 articles: Level 1V (60); NTSCI incorrectly evaluated (14); publication bias (2); non-English language (1); and animal experiments (1), 126 titles/abstracts were screened and ranked against criteria. Of the 8 papers allocated for full-text review, a subset of 3 articles was ranked level 1A (1) or level 11A (2); mean PEDro score 5.75+/-0.5. Reasons for full-text exclusions (5) were NTSCI incorrectly classified (1) and statistical limitations (4). Of the 6 domains, prognostics had adequate data yield (86) for evidence synthesis (4.8% ranked level 1A, or 11A). Notable evidence gaps were identified in qualitative (1), methodological (2), and diagnostic (8) domains. Conclusion: Therapeutic approaches require an evidence-based understanding of the distinct contexts in which NTSCI occurs, especially in less resourced settings. Our findings underscore the need for qualitative and quantitative research on the occurrence of NTSCI in all contexts. PMID- 29339912 TI - Outcomes Following Ischemic Myelopathies and Traumatic Spinal Injury. AB - Background: As the general population ages, the rising prevalence of vascular lesions of the spinal cord will become significant. Purpose: The aim of this study was to compare the neurological and functional outcomes of patients with ischemic spinal cord injury (ISCI) and traumatic spinal cord injury (TSCI). Methods: We conducted a retrospective study in a spinal cord unit of 2 rehabilitation hospitals. We studied 168 patients with a TSCI and 72 with an ISCI. At admission and discharge, patients were evaluated by American Spinal Injury Association Impairment Scale (AIS) standards and Spinal Cord Independence Measure (SCIM). Length of stay, occurrence of complications, and discharge dispositions were also recorded. Linear and logistic regression models were used to analyze the effects of the etiology of the lesion, AIS level at admission, and level of the lesion. Results: Patients with an ISCI were older and experienced fewer cervical lesions and fewer complete lesions than patients with TSCI. By linear and logistic regression, etiology was a predictor (together with lesion features) of functional (SCIM improvement and SCIM at discharge) outcome, with traumatic patients having better outcome than ischemic ones. Age, AIS level, and lesion level were the chief predictors of length of stay, occurrence of complications, and discharge dispositions. Conclusions: A diagnosis of ischemia and trauma could be a determinant of functional recovery in SCI patients. PMID- 29339913 TI - The Influence of Chronic Inflammation on Peripheral Motor Nerve Conduction Following Spinal Cord Injury: A Randomized Clinical Trial. AB - Objective: To examine the potential influence of chronic inflammation on peripheral motor nerve function in vivo following spinal cord injury (SCI). Methods: This study was part of a randomized, parallel-group, controlled clinical trial. The study included 20 participants with varying levels and severities of SCI randomized (3:2) to either a treatment group, consisting of a 12-week anti inflammatory diet program, or control group. Outcome measures were assessed at baseline, 1 month, and 3 months and consisted of measures of motor nerve conduction velocity (NCV) and amplitude as well as markers of inflammation as assessed by various pro- and anti-inflammatory cytokines. Results: Despite a significant reduction in inflammation in the treatment group, 2-way repeated measures analysis of variance (ANOVA) showed no significant Group * Time interaction for motor NCV (p = .77) or M-wave amplitude (p = .61). Further, the change in motor NCV and M-wave amplitude were not shown to be associated with the change in inflammatory mediators as assessed via a backwards elimination multiple regression analysis. Conclusion: These results suggest that at physiologically relevant concentrations, inflammatory mediators may not have a substantial influence on peripheral motor nerve conduction in vivo following SCI. Future studies may still be warranted to examine the potential for central effects. PMID- 29339914 TI - Perinatal Care for Women with Spinal Cord Injuries: A Collaborative Workshop for Consensus on Care in Canada. AB - Background: In North America, there are currently no clearly defined standards of care for women with spinal cord injury (SCI) during the perinatal periods of preconception, pregnancy, labour/delivery, and postpartum. Women with SCI and their partners say resources specific to their needs are hard to find. Little evidence-informed research exists to guide clinicians in the care of women with SCI during pregnancy. Objectives: To further explore these gaps in knowledge and practices for perinatal care for women with SCI, a 1-day workshop was held in Vancouver, British Columbia (BC), Canada in November 2013. Methods: Twenty-nine attendees included women with SCI, SCI-community service providers, researchers, and health care providers from maternal/fetal medicine, rehabilitation, anesthesiology, and psychiatry. A pre-meeting online survey of stakeholders elucidated 3 themes: lack of knowledge for both consumers and care providers, gaps in access to services and information, and a need for collaboration throughout the perinatal journey. The workshop addressed issues of care providers' lack of knowledge of nonmedical issues during the perinatal period, physical and attitudinal barriers to access to care for women with SCI, and the need for better collaboration and communication between care providers, the latter potentially initiated by providing information to care providers through the women with SCI themselves. Results: Content experts attending the workshop collectively made recommendations for knowledge generation and research priorities, clinical application priorities, and the need for policy and guideline development in this field. Conclusion: Two information sources for women have since been developed and are available online. PMID- 29339915 TI - Minimal water-jet hydrodissection. AB - This paper presents a hydrodissection technique performed with high-speed pulse injection of only 0.1 cc liquid and assess its efficacy, safety, and the level of reduction in posterior capsule rupture complications in phacoemulsification cataract surgery. The kinetic energy of moving objects is directly proportional to the mass and to the square of its velocity. The high energy obtained by high speed pulse injection of a small amount of liquid ensures highly effective dissection. Since the amount of liquid is very small, the increase in intraocular pressure and the risk of rupture in the posterior capsule due to anterior capsular block are greatly reduced. More importantly, several rotations of the lens material in the capsule with effective hydrodissection facilitate the phases of phacoemulsification and irrigation/aspiration. As most capsule ruptures occur during these phases, the complication rate is thus reduced. PMID- 29339916 TI - Pediatric cataract surgery with hydrophilic acrylic intraocular lens implantation in Nepalese children. AB - Purpose: To assess the outcome of cataract surgery with hydrophilic acrylic intraocular lens (IOL) implantation in children with congenital and developmental cataracts. Method: A retrospective review of medical records of children with congenital or developmental cataracts who underwent cataract surgery with hydrophilic IOL implantation, from January 2011 to December 2014 in a tertiary eye hospital in Nepal. Primary posterior capsulotomy, anterior vitrectomy, and IOL implantation was done in children 8 years or younger, while older children underwent only lens aspiration and IOL implantation. Results: A total of 178 eyes of 120 children underwent cataract surgery with primary IOL implantation. Mean age at the time of surgery was 6.9 years (range: 3 months to 15 years). Average follow-up time was 13.7 (+/-5.9) months. Associated ocular anomalies were present in 84 (47.1%) eyes. Postoperative complications were found in 33 eyes (18.13%) with inflammatory membrane being the most common (10.1%). Two eyes (1.1%) developed endophthalmitis. Second intervention was needed in 12 (6.5%) eyes. Preoperative vision of less than 6/60 was present in 105 eyes (57.69%). Final best corrected visual acuity of 6/12 or better was found in 81 (44.5%) eyes. Conclusion: Our study shows that hydrophilic IOL is suitable for use in children. Results of this study are comparable with other studies on pediatric cataract surgeries using hydrophobic acrylic intraocular lenses. Low cost hydrophilic lens implantation is an effective approach in managing pediatric cataract surgery in developing countries like Nepal. PMID- 29339917 TI - Association of treatment adherence with real-life VA outcomes in AMD, DME, and BRVO patients. AB - Purpose: Real-life clinical outcomes of patients treated with anti-VEGF drugs for neovascular age-related macular degeneration (nAMD), diabetic macular edema (DME), or macular edema secondary to branch retinal vein occlusion (BRVO) are often inferior to results from randomized clinical trials. This observational cohort study investigates treatment adherence and real-life clinical outcomes within the first year of treatment. Patients and methods: A total of 708 treatment-naive patients (466 nAMD, 134 DME, and 108 BRVO) were included. Patients were followed with a PRN treatment protocol with three intravitreal injections (IVIs) and a series of 3 monthly injections in case of persistent or recurrent disease activity, as determined by monthly follow-up exams including optical coherence tomographies. Occurrence of gaps of >56 days between treatments or follow-up (nonadherence [NA]) and the reasons for NA (patient- or center associated) as well as disease activity within the first 12 months of treatment were analyzed. Visual acuity (VA) as well as numbers and dates of optical coherence tomography and IVI were extracted from medical records. Results: NA occurred significantly more often in patients with DME (44%) than nAMD (32%) or BRVO (25%, p<0.01 between groups). NA was mainly patient-associated (nAMD: 80.0%, DME: 83.1%, BRVO: 70.4%, p=0.38 between groups). Patients with nAMD and DME and appropriate treatment/follow-up adherence had a better chance of significantly gaining or maintaining VA, respectively (19.9% vs 12.0% with 3-line-gain in nAMD and 1.3% vs 15.3% 3-line loss in DME; each p<0.05). NA did not correlate with VA outcomes in BRVO (3-line gain 30.9% vs 48.1% and 3-line loss 8.6% vs 7.4%; p>0.05). Conclusion: NA to treatment and follow-up regimens is a common problem in the management of patients with AMD and DME and limits clinical treatment outcomes under real-life conditions. Patients with DME have the highest risk of patient-associated NA, associated with a higher risk for significant VA loss. PMID- 29339918 TI - Comparability and repeatability of different methods of corneal astigmatism assessment. AB - Purpose: To assess the comparability and repeatability of keratometric and astigmatism values measured by four techniques: Orbscan IIz(r) (Bausch and Lomb), Lenstar LS 900(r) (Haag-Streit), Cassini(r) (i-Optics), and Total Cassini (anterior + posterior surface), in healthy volunteers. Patients and methods: Fifteen healthy volunteers (30 eyes) were assessed by the four techniques. In each eye, three consecutive measures were performed by the same operator. Keratometric and astigmatism values were recorded. The intraclass correlation coefficient (ICC) was used to assess comparability and repeatability. Agreement between measurement techniques was evaluated with Bland-Altman plots. Results: Comparability was high between all measurement techniques for minimum keratometry (K1), maximum keratometry (K2), astigmatism magnitude, and astigmatism axis, with ICC >0.900, except for astigmatism magnitude measured by Cassini compared to Lenstar (ICC =0.798) and Orbscan compared to Lenstar (ICC =0.810). However, there were some differences in the median values of K1 and K2 between measurement techniques, and the Bland-Altman plots showed a wide data spread for all variables, except for astigmatism magnitude measured by Cassini and Total Cassini. For J0 and J45, comparability was only high for J0 between Cassini and Orbscan. Repeatability was also high for all measurement techniques except for K2 (ICC =0.814) and J45 (ICC =0.621) measured by Cassini. Conclusion: All measurement techniques showed high comparability regarding K1, K2, and astigmatism axis. Although posterior corneal surface is known to influence these measurements, comparability was high between Cassini and Total Cassini regarding astigmatism magnitude and axis. However, the wide data spread suggests that none of these devices should be used interchangeably. PMID- 29339919 TI - Effect of oral tranexamic acid on macular edema associated with retinal vein occlusion or diabetes. AB - Purpose: Tranexamic acid (TXA) is a widely used antifibrinolytic agent that can also cause a decrease in vascular permeability. We hypothesized that TXA could improve macular edema (ME) that is caused by an increase in retinal vascular permeability. The aim of this study is to evaluate the efficacy of oral TXA for ME associated with retinal vein occlusion (RVO) or diabetic ME (DME). Patients and methods: Oral TXA (1,500 mg daily for 2 weeks) was administered to patients with persistent ME secondary to RVO (7 eyes) and DME (7 eyes). After 2 weeks (ie, the final day of administration) and 6 weeks (ie, 4 weeks after the final administration), best-corrected visual acuity and central macular thickness (CMT) were measured and compared with baseline. Analyses were performed for RVO and DME cases. No other treatment was performed during the study period. Results: In RVO cases, significant improvement in CMT was found between baseline (467.7+/-121.4 MUm) and 2-week measurements after treatment (428.7+/-110.5 MUm, p=0.024). No significant change was found in CMT between measurements taken at baseline and 6 weeks after treatment. In DME cases, no significant change was found in CMT between measurements taken at baseline and 2 or 6 weeks after treatment. In all analyses of best-corrected visual acuity, no significant change was observed. Conclusion: The results support the hypothesis that plasmin plays a role in the development of ME associated with RVO, and oral TXA administration may be useful as an adjuvant treatment when combined with other agents such as anti-vascular endothelial growth factor. PMID- 29339920 TI - Microhook ab interno trabeculotomy, a novel minimally invasive glaucoma surgery. AB - Trabeculotomy (LOT) is performed to reduce the intraocular pressure in patients with glaucoma, both in children and adults. It relieves the resistance to aqueous flow by cleaving the trabecular meshwork and the inner walls of Schlemm's canal. Microhook ab interno LOT (uLOT), a novel minimally invasive glaucoma surgery, incises trabecular meshwork using small hooks that are inserted through corneal side ports. An initial case series reported that both uLOT alone and combination of uLOT and cataract surgery normalize the intraocular pressure during the early postoperative period in Japanese patients with glaucoma. Microhook can incise the inner wall of Schlemm's canal without damaging its outer wall easier than the regular straight knife that is used during goniotomy. Advantages of uLOT include: a wider extent of LOT (two-thirds of the circumference), a simpler surgical technique, being less invasiveness to the ocular surface, a shorter surgical time than traditional ab externo LOT, and no requirement for expensive devices. In this paper, the surgical technique of uLOT and tips of the technique are introduced. PMID- 29339921 TI - Cardiopulmonary exercise test and PaO2 in evaluation of pulmonary hypertension in COPD. AB - Background: Exercise tolerance decreases as COPD progresses. Pulmonary hypertension (PH) is common in COPD and may reduce performance further. COPD patients with and without PH could potentially be identified by cardiopulmonary exercise test (CPET). However, results from previous studies are diverging, and a unified conclusion is missing. We hypothesized that CPET combined with arterial blood gases is useful to discriminate between COPD outpatients with and without PH. Methods: In total, 93 COPD patients were prospectively included. Pulmonary function tests, right heart catheterization, and CPET with blood gases were performed. The patients were divided, by mean pulmonary artery pressure, into COPD-noPH (<25 mmHg) and COPD-PH (>=25 mmHg) groups. Linear mixed models (LMMs) were fitted to estimate differences when repeated measurements during the course of exercise were considered and adjusted for gender, age, and airway obstruction. Results: Ventilatory and/or hypoxemic limitation was the dominant cause of exercise termination. In LMM analyses, significant differences between COPD-noPH and COPD-PH were observed for PaO2, SaO2, PaCO2, ventilation, respiratory frequency, and heart rate. PaO2 <61 mmHg (8.1 kPa) during unloaded pedaling, the only load level achieved by all the patients, predicted PH with a sensitivity of 86% and a specificity of 78%. Conclusion: During CPET, low exercise performance and PaO2 strongly indicated PH in COPD patients. PMID- 29339922 TI - Effect of rhythmic auditory cueing on gait in cerebral palsy: a systematic review and meta-analysis. AB - Auditory entrainment can influence gait performance in movement disorders. The entrainment can incite neurophysiological and musculoskeletal changes to enhance motor execution. However, a consensus as to its effects based on gait in people with cerebral palsy is still warranted. A systematic review and meta-analysis were carried out to analyze the effects of rhythmic auditory cueing on spatiotemporal and kinematic parameters of gait in people with cerebral palsy. Systematic identification of published literature was performed adhering to Preferred Reporting Items for Systematic Reviews and Meta-Analyses and American Academy for Cerebral Palsy and Developmental Medicine guidelines, from inception until July 2017, on online databases: Web of Science, PEDro, EBSCO, Medline, Cochrane, Embase and ProQuest. Kinematic and spatiotemporal gait parameters were evaluated in a meta-analysis across studies. Of 547 records, nine studies involving 227 participants (108 children/119 adults) met our inclusion criteria. The qualitative review suggested beneficial effects of rhythmic auditory cueing on gait performance among all included studies. The meta-analysis revealed beneficial effects of rhythmic auditory cueing on gait dynamic index (Hedge's g=0.9), gait velocity (1.1), cadence (0.3), and stride length (0.5). This review for the first time suggests a converging evidence toward application of rhythmic auditory cueing to enhance gait performance and stability in people with cerebral palsy. This article details underlying neurophysiological mechanisms and use of cueing as an efficient home-based intervention. It bridges gaps in the literature, and suggests translational approaches on how rhythmic auditory cueing can be incorporated in rehabilitation approaches to enhance gait performance in people with cerebral palsy. PMID- 29339923 TI - An acute bout of housework activities has beneficial effects on executive function. AB - Purpose: Although acute bouts of exercise reportedly have beneficial effects on executive function, inactive people may find it difficult to start exercising. In this study, we focused on housework activities (HAs) that generate a sense of accomplishment and require a mild intensity of physical activity. We examined the impact of an acute bout of HA on executive function and oxygenated hemoglobin (oxy-Hb) flow to related cortical regions. Materials and methods: Twenty-five participants (age, 18-21 years; mean, 19.88+/-0.60 years; six males and 19 females) underwent two experiments, ie, HA and control experiments, which were conducted on different days. Participants vacuumed a dirty floor in the HA experiment and mimicked the same motion with an unplugged vacuum cleaner on a clean floor in the control experiment. Results: Heart rate recorded during the experiments showed no significant difference in the intensity of physical activity between control and HA groups. A questionnaire revealed a sense of accomplishment after completing the HA experiment. Participants performed the Stroop color-word task (SCWT) pre- and post-experiments; cortical hemodynamic changes were simultaneously monitored using functional near-infrared spectroscopy. Variation in Stroop interference scores for SCWT total response between pre- and post-experiments was signifi-cantly higher in the HA group than in the control group, and that for SCWT correct response showed a similar trend. Variation in the Stroop interference score for oxy-Hb flow to the right ventrolateral prefrontal cortex (R-VLPFC) showed the same trend. Conclusion: Thus, HAs may have a greater beneficial effect on executive function than other physical activities through the activation of PFC, including R-VLPFC. PMID- 29339924 TI - Quality of life and coping strategies of outpatients with a depressive disorder in maintenance therapy - a cross-sectional study. AB - Background: The quality of life (QoL) is a multidimensional view that represents all aspects of patient well-being in various areas of patient life. Specific coping strategies may be connected to both the QoL and the severity of mental disorder. The aim of this investigation was to examine the relationship between the QoL and the coping strategies of outpatients with a depressive disorder. Methods: Eighty-two outpatients, who met the criteria of the International Classification of Diseases, Tenth Revision, for a depressive disorder, were enrolled in the cross-sectional study. Data on sociodemographic and clinical variables were obtained from the medical records. Individuals filled the following standardized questionnaires: Quality of Life Satisfaction and Enjoyment Questionnaire, Stress Coping Style Questionnaire, and Clinical Global Impression. Multiple regression analyses with backward elimination were performed to discover the most influential factors contributing to QoL. Results: The participants with a depressive disorder showed an overuse of negative coping strategies, especially escape tendency and resignation. A positive self-instruction strategy was used by the patients less often. The coping strategies were significantly associated with the QoL. A more frequent use of positive coping strategies had a positive association with the QoL. The main factors related to QoL were the subjective severity of the disorder, employment, and positive coping strategies. Conclusion: The study confirmed the relationship between QoL and the coping strategies of outpatients with a depressive disorder. PMID- 29339925 TI - miR-136 targets MIEN1 and involves the metastasis of colon cancer by suppressing epithelial-to-mesenchymal transition. AB - MIEN1 is a novel oncogene, and it involves tumor progression in various cancer types, including colon cancer. However, the definite molecular mechanisms of MIEN1 in colon cancer progression remain to be completely elucidated. In the present study, bioinformatics prediction showed that miR-136 could be an upstream regulator of MIEN1; a luciferase assay and Western blot assay revealed that miR 136 negatively regulates MIEN1 expression via directly targeting its 3' untranslated region sequence. Moreover, a functional assay using wound healing and transwell invasion showed that overexpressed miR-136 inhibited cell migration and invasion, and overexpression of MIEN1 partly rescued the above-mentioned effects of miR-136 in colon cancer cells. Additionally, a clinical sample assay showed that miR-136 expression was generally downregulated in colon cancer tissue, which was inversely correlated with MIEN1 expression. Furthermore, we found that miR-136 suppressed the Akt/NF-kappaB signaling pathway and epithelial to-mesenchymal transition in colon cancer. These results suggest that miR-136, as a tumor suppressor, acts in tumor metastasis by suppressing MIEN1 expression in colon cancer, providing a novel target for the treatment of colon cancer. PMID- 29339926 TI - Using a chronic hepatitis B Registry to support population-level liver cancer prevention in Sydney, Australia. AB - Background: Approximately 1% of Australians have chronic hepatitis B (CHB), which disproportionately affects people born in hepatitis B-endemic countries. Currently, approximately half of the people affected remain undiagnosed and antiviral treatment uptake is suboptimal (~5%). This increases the likelihood of developing end-stage disease complications, particularly hepatocellular cancer (HCC), and largely accounts for the significant increases in HCC incidence and mortality in Australia over the last decades. As our previous economic modeling suggested that CHB screening and treatment is cost-effective, we tested the feasibility of a primary care-based model of CHB diagnosis and management to prevent HCC. Materials and methods: From 2009 to 2016, the B Positive program trialed a CHB screening and management program in an area of high disease prevalence in Sydney, Australia. Trained local primary care providers (general practitioners) screened and managed their CHB patients using a purpose-built CHB Registry and a risk stratification algorithm, which allocated patients to ongoing primary care-based management or specialist referral. Results: The program enrolled and followed up >1,500 people (25% of the target population). Their median age was 48 years, with most participants being born in China (50%) or Vietnam (32%). The risk stratification algorithm allocated most Registry participants (n=847 or 79%) to primary care-based management, reducing unnecessary specialist referrals. The level of antiviral treatment uptake in Registry patients was 18%, which was the optimal level in this population group. Conclusion: This pilot program demonstrated that primary care-based hepatitis B diagnosis and management is acceptable to patients and their care providers and significantly increases compliance with treatment guidelines. This would suggest that scaling up access to hepatitis B treatment is achievable and can provide a means to operationalize a population-level approach to CHB management and liver cancer prevention. PMID- 29339927 TI - Factors affecting the cultural competence of visiting nurses for rural multicultural family support in South Korea. AB - Background: With the recent growth of multicultural families in the Korean society, the importance of the role of qualified visiting nurses in the delivery of culturally sensitive health care has grown dramatically. As the primary health care provider for multicultural families enrolled in public community-based health care centers, the cultural competence of visiting nurses is an essential qualification for the provision of quality health care for multicultural families, especially in rural areas. Cultural competence of visiting nurses is based on their cultural awareness and empathetic attitude toward multicultural families. This study aimed to examine the levels of cultural competence, empowerment, and empathy in visiting nurses, and to verify the factors that affect the cultural competence of visiting nurses working with rural multicultural families in South Korea. Methods: Employing a cross-sectional descriptive study design, data from 143 visiting nurses working in rural areas were obtained. Data collection took place between November 2011 and August 2012. The measurement tools included the modified Korean version of the Cultural Awareness Scale, the Text of Items Measuring Empowerment, and the Interpersonal Reactivity Index to measure the level of empathy of visiting nurses. Analyses included descriptive statistics, a t-test, an ANOVA, a Pearson correlation coefficient analysis, and a multiple linear regression analysis. Results: The cultural competence score of the visiting nurses was 3.07 on a 5-point Likert scale (SD = 0.30). The multiple regression analysis revealed that the cultural competence of visiting nurses was significantly influenced by experience of cultural education, empathy, and scores on the meaning subscale of the empowerment tool (R2 = 10.2%). Conclusions: Institutional support to enhance visiting nurses' empowerment by assuring the significance of their job and specific strategies to enhance their empathy would be helpful to improve the cultural competence of visiting nurses. Additionally, regular systematic education on culturally sensitive care would be helpful to enable visiting nurses to provide culturally sensitive care for multicultural families. PMID- 29339928 TI - Chemical proteomics, an integrated research engine for exploring drug-target phenotype interactions. PMID- 29339930 TI - Research evaluation support services in biomedical libraries. AB - Objective: The paper provides a review of current practices related to evaluation support services reported by seven biomedical and research libraries. Methods: A group of seven libraries from the United States and Canada described their experiences with establishing evaluation support services at their libraries. A questionnaire was distributed among the libraries to elicit information as to program development, service and staffing models, campus partnerships, training, products such as tools and reports, and resources used for evaluation support services. The libraries also reported interesting projects, lessons learned, and future plans. Results: The seven libraries profiled in this paper report a variety of service models in providing evaluation support services to meet the needs of campus stakeholders. The service models range from research center cores, partnerships with research groups, and library programs with staff dedicated to evaluation support services. A variety of products and services were described such as an automated tool to develop rank-based metrics, consultation on appropriate metrics to use for evaluation, customized publication and citation reports, resource guides, classes and training, and others. Implementing these services has allowed the libraries to expand their roles on campus and to contribute more directly to the research missions of their institutions. Conclusions: Libraries can leverage a variety of evaluation support services as an opportunity to successfully meet an array of challenges confronting the biomedical research community, including robust efforts to report and demonstrate tangible and meaningful outcomes of biomedical research and clinical care. These services represent a transformative direction that can be emulated by other biomedical and research libraries. PMID- 29339929 TI - Inositol depletion, GSK3 inhibition and bipolar disorder. AB - Valproic acid and lithium are widely used to treat bipolar disorder, a severe illness characterized by cycles of mania and depression. However, their efficacy is limited, and treatment is often accompanied by serious side effects. The therapeutic mechanisms of these drugs are not understood, hampering the development of more effective treatments. Among the plethora of biochemical effects of the drugs, those that are common to both may be more related to therapeutic efficacy. Two common outcomes include inositol depletion and GSK3 inhibition, which have been proposed to explain the efficacy of both valproic acid and lithium. Here, we discuss the inositol depletion and GSK3 inhibition hypotheses, and introduce a unified model suggesting that inositol depletion and GSK3 inhibition are inter-related. PMID- 29339931 TI - Assessment of knowledge and skills in information literacy instruction for rehabilitation sciences students: a scoping review. AB - Objective: This scoping review investigates how knowledge and skills are assessed in the information literacy (IL) instruction for students in physical therapy, occupational therapy, or speech-language pathology, regardless of whether the instruction was given by a librarian. The objectives were to discover what assessment measures were used, determine whether these assessment methods were tested for reliability and validity, and provide librarians with guidance on assessment methods to use in their instruction in evidence-based practice contexts. Methods: A scoping review methodology was used. A systematic search strategy was run in Ovid MEDLINE and adapted for CINAHL; EMBASE; Education Resources Information Center (ERIC) (EBSCO); Library and Information Science Abstracts (LISA); Library, Information Science & Technology Abstracts (LISTA); and Proquest Theses and Dissertations from 1990 to January 16, 2017. Forty articles were included for data extraction. Results: Three major themes emerged: types of measures used, type and context of librarian involvement, and skills and outcomes described. Thirty-four measures of attitude and thirty-seven measures of performance were identified. Course products were the most commonly used type of performance measure. Librarians were involved in almost half the studies, most frequently as instructor, but also as author or assessor. Information literacy skills such as question formulation and database searching were described in studies that did not involve a librarian. Conclusion: Librarians involved in instructional assessment can use rubrics such as the Valid Assessment of Learning in Undergraduate Education (VALUE) when grading assignments to improve the measurement of knowledge and skills in course-integrated IL instruction. The Adapted Fresno Test could be modified to better suit the real-life application of IL knowledge and skills. PMID- 29339932 TI - Computerized versus hand-scored health literacy tools: a comparison of Simple Measure of Gobbledygook (SMOG) and Flesch-Kincaid in printed patient education materials. AB - Objective: The research compared and contrasted hand-scoring and computerized methods of evaluating the grade level of patient education materials that are distributed at an academic medical center in east Tennessee and sought to determine if these materials adhered to the American Medical Association's (AMA's) recommended reading level of sixth grade. Methods: Librarians at an academic medical center located in the heart of Appalachian Tennessee initiated the assessment of 150 of the most used printed patient education materials. Based on the Flesch-Kincaid (F-K) scoring rubric, 2 of the 150 documents were excluded from statistical comparisons due to the absence of text (images only). Researchers assessed the remaining 148 documents using the hand-scored Simple Measure of Gobbledygook (SMOG) method and the computerized F-K grade level method. For SMOG, 3 independent reviewers hand-scored each of the 150 documents. For F-K, documents were analyzed using Microsoft Word. Reading grade levels scores were entered into a database for statistical analysis. Inter-rater reliability was calculated using intra-class correlation coefficients (ICC). Paired t-tests were used to compare readability means. Results: Acceptable inter rater reliability was found for SMOG (ICC=0.95). For the 148 documents assessed, SMOG produced a significantly higher mean reading grade level (M=9.6, SD=1.3) than F-K (M=6.5, SD=1.3; p<0.001). Additionally, when using the SMOG method of assessment, 147 of the 148 documents (99.3%) scored above the AMA's recommended reading level of sixth grade. Conclusions: Computerized health literacy assessment tools, used by many national patient education material providers, might not be representative of the actual reading grade levels of patient education materials. This is problematic in regions like Appalachia because materials may not be comprehensible to the area's low-literacy patients. Medical librarians have the potential to advance their role in patient education to better serve their patient populations. PMID- 29339933 TI - Roles for librarians in systematic reviews: a scoping review. AB - Objective: What roles do librarians and information professionals play in conducting systematic reviews? Librarians are increasingly called upon to be involved in systematic reviews, but no study has considered all the roles librarians can perform. This inventory of existing and emerging roles aids in defining librarians' systematic reviews services. Methods: For this scoping review, the authors conducted controlled vocabulary and text-word searches in the PubMed; Library, Information Science & Technology Abstracts; and CINAHL databases. We separately searched for articles published in the Journal of the European Association for Health Information and Libraries, Evidence Based Library and Information Practice, the Journal of the Canadian Heath Libraries Association, and Hypothesis. We also text-word searched Medical Library Association annual meeting poster and paper abstracts. Results: We identified 18 different roles filled by librarians and other information professionals in conducting systematic reviews from 310 different articles, book chapters, and presented papers and posters. Some roles were well known such as searching, source selection, and teaching. Other less documented roles included planning, question formulation, and peer review. We summarize these different roles and provide an accompanying bibliography of references for in-depth descriptions of these roles. Conclusion: Librarians play central roles in systematic review teams, including roles that go beyond searching. This scoping review should encourage librarians who are fulfilling roles that are not captured here to document their roles in journal articles and poster and paper presentations. PMID- 29339934 TI - Publication outcome of abstracts submitted to the American Academy of Ophthalmology meeting. AB - Objective: Abstracts submitted to meetings are subject to less rigorous peer review than full-text manuscripts. This study aimed to explore the publication outcome of abstracts presented at the American Academy of Ophthalmology (AAO) annual meeting. Methods: Abstracts presented at the 2008 AAO meeting were analyzed. Each presented abstract was sought via PubMed to identify if it had been published as a full-text manuscript. The publication outcome, journal impact factor (IF), and time to publication were recorded. Results: A total of 690 abstracts were reviewed, of which 39.1% were subsequently published. They were published in journals with a median IF of 2.9 (range 0-7.2) and a median publication time of 426 days (range 0-2,133 days). A quarter were published in the journal Ophthalmology, with a shorter time to publication (median 282 vs. 534 days, p=0.003). Oral presentations were more likely to be published than poster presentations (57.8% vs. 35.9%, p<0.001) and in journals with higher IFs (3.2 vs. 2.8, p=0.02). Abstracts describing rare diseases had higher publication rates (49.4% vs. 38.0%, p=0.04) and were published in higher IF journals (3.7 vs. 2.9, p=0.03), within a shorter period of time (358 vs. 428 days, p=0.03). In multivariate analysis, affiliation with an institute located in the United States (p=0.002), abstracts describing rare diseases (p=0.03), and funded studies (p=0.03) were associated with publication in higher IF journals. Conclusions: Almost 40% of abstracts were published. Factors that correlated with publication in journals with higher IF were a focus on rare diseases, affiliation with a US institute, and funding. PMID- 29339935 TI - Dietetic interns' perceptions and use of evidence-based practice: an exploratory study. AB - Objective: This study explored dietetic interns' perceptions and knowledge of evidence-based practice (EBP), their use and observation of EBP principles during their clinical rotations, and their intentions to use EBP in their careers. Methods: A mixed methods design combining a survey and focus group was employed. Dietetic interns (n=16) from a large Midwestern university were recruited in person and via email to participate in the survey, focus group, or both. Perceptions and experiences of EBP were analyzed through the focus group (qualitative), and EBP knowledge and clinical practice behaviors were analyzed through the survey (quantitative). The focus group discussion was recorded, transcribed, and analyzed using thematic analysis. Results: Four major themes emerged from the focus group data: (1) observations of EBP in clinical practice, (2) use of EBP during clinical rotations, (3) barriers to EBP, and (4) perceived use of EBP as future registered dietitians. Interns considered EBP important for their profession and future careers. They struggled, however, with the discrepancies between current research and practice, and highlighted differences that they observed and barriers that they experienced across different clinical settings. Conclusions: This exploratory study is the first to examine dietetic interns' perceptions of and experiences with EBP in the clinical setting. Future research is needed to identify how dietetics educators, librarians, and preceptors can address the barriers that interns perceive in applying EBP in their internships. PMID- 29339936 TI - Satellite stories: capturing professional experiences of academic health sciences librarians working in delocalized health sciences programs. AB - Objective: Health sciences training programs have progressively expanded onto satellite campuses, allowing students the opportunity to learn in communities away from an academic institution's main campus. This expansion has encouraged a new role for librarians to assume, in that a subset of health sciences librarians identify as "satellite librarians" who are permanently located at a distance from the main campus. Due to the unique nature of this role and lack of existing data on the topic, the authors investigated the experiences and perceptions of this unique group of information professionals. Methods: An electronic survey was distributed to health sciences librarians via two prominent North American email discussion lists. Questions addressed the librarians' demographics, feelings of social inclusion, technological support, autonomy, professional support, and more. Results: Eighteen surveys were analyzed. While several respondents stated that they had positive working relationships with colleagues, many cited issues with technology, scheduling, and lack of consideration as barriers to feeling socially included at both the parent and local campuses. Social inclusion, policy creation, and collection management issues were subject to their unique situations and their colleagues' perceptions of their roles as satellite librarians. Conclusions: The results from this survey suggest that the role of the academic health sciences librarian at the satellite campus needs to be clearly communicated and defined. This, in turn, will enhance the experience for the librarian and provide better service to the client. PMID- 29339937 TI - Discrepancies among Scopus, Web of Science, and PubMed coverage of funding information in medical journal articles. AB - Objective: The overall aim of the present study was to compare the coverage of existing research funding information for articles indexed in Scopus, Web of Science, and PubMed databases. Methods: The numbers of articles with funding information published in 2015 were identified in the three selected databases and compared using bibliometric analysis of a sample of twenty-eight prestigious medical journals. Results: Frequency analysis of the number of articles with funding information showed statistically significant differences between Scopus, Web of Science, and PubMed databases. The largest proportion of articles with funding information was found in Web of Science (29.0%), followed by PubMed (14.6%) and Scopus (7.7%). Conclusion: The results show that coverage of funding information differs significantly among Scopus, Web of Science, and PubMed databases in a sample of the same medical journals. Moreover, we found that, currently, funding data in PubMed is more difficult to obtain and analyze compared with that in the other two databases. PMID- 29339938 TI - Understanding cancer survivors' information needs and information-seeking behaviors for complementary and alternative medicine from short- to long-term survival: a mixed-methods study. AB - Objective: The research examined complementary and alternative medicine (CAM) information-seeking behaviors and preferences from short- to long-term cancer survival, including goals, motivations, and information sources. Methods: A mixed methods approach was used with cancer survivors from the "Assessment of Patients' Experience with Cancer Care" 2004 cohort. Data collection included a mail survey and phone interviews using the critical incident technique (CIT). Results: Seventy survivors from the 2004 study responded to the survey, and eight participated in the CIT interviews. Quantitative results showed that CAM usage did not change significantly between 2004 and 2015. The following themes emerged from the CIT: families' and friends' provision of the initial introduction to a CAM, use of CAM to manage the emotional and psychological impact of cancer, utilization of trained CAM practitioners, and online resources as a prominent source for CAM information. The majority of participants expressed an interest in an online information-sharing portal for CAM. Conclusion: Patients continue to use CAM well into long-term cancer survivorship. Finding trustworthy sources for information on CAM presents many challenges such as reliability of source, conflicting information on efficacy, and unknown interactions with conventional medications. Study participants expressed interest in an online portal to meet these needs through patient testimonials and linkage of claims to the scientific literature. Such a portal could also aid medical librarians and clinicians in locating and evaluating CAM information on behalf of patients. PMID- 29339939 TI - Library instruction in medical education: a survey of current practices in the United States and Canada. AB - Objective: The most recent survey on instruction practices in libraries affiliated with accredited medical institutions in the United States was conducted in 1996. The present study sought to update these data, while expanding to include Canadian libraries. Additional analysis was undertaken to test for statistically significant differences between library instruction in the United States and Canada and between libraries affiliated with highly ranked and unranked institutions. Methods: A twenty-eight-question survey was distributed to libraries affiliated with accredited US and Canadian medical schools to assess what and how often librarians teach, as well as how librarians are involved in the curriculum committee and if they are satisfied with their contact with students and faculty. Quantitative data were analyzed with SAS, R, and MedCalc. Results: Most of the seventy-three responding libraries provided instruction, both asynchronously and synchronously. Library instruction was most likely to be offered in two years of medical school, with year one seeing the most activity. Database use was the most frequently taught topic, and libraries reported a median of five librarians providing instruction, with larger staffs offering slightly more education sessions per year. Libraries associated with highly ranked schools were slightly more likely to offer sessions that were integrated into the medical school curriculum in year four and to offer sessions in more years overall. Conclusions: In US and Canadian libraries, regardless of the rank of the affiliated medical school, librarians' provision of instruction in multiple formats on multiple topics is increasingly common. PMID- 29339940 TI - Applying an information literacy rubric to first-year health sciences student research posters. AB - Objective: This article describes the collection and analysis of annotated bibliographies created by first-year health sciences students to support their final poster projects. The authors examined the students' abilities to select relevant and authoritative sources, summarize the content of those sources, and correctly cite those sources. Methods: We collected images of 1,253 posters, of which 120 were sampled for analysis, and scored the posters using a 4-point rubric to evaluate the students' information literacy skills. Results: We found that 52% of students were proficient at selecting relevant sources that directly contributed to the themes, topics, or debates presented in their final poster projects, and 64% of students did well with selecting authoritative peer-reviewed scholarly sources related to their topics. However, 45% of students showed difficulty in correctly applying American Psychological Association (APA) citation style. Conclusion: Our findings demonstrate a need for instructors and librarians to provide strategies for reading and comprehending scholarly articles in addition to properly using APA citation style. PMID- 29339941 TI - Building capacity to encourage research reproducibility and #MakeResearchTrue. AB - Background: Research into study replication and reporting has led to wide concern about a reproducibility crisis. Reproducibility is coming to the attention of major grant funders, including the National Institutes of Health, which launched new grant application instructions regarding rigor and reproducibility in 2015. Study Purpose: In this case study, the authors present one library's work to help increase awareness of reproducibility and to build capacity for our institution to improve reproducibility of ongoing and future research. Case Presentation: Library faculty partnered with campus research leaders to create a daylong conference on research reproducibility, followed by a post-conference day with workshops and an additional seminar. Attendees came from nearly all schools and colleges on campus, as well as from other institutions, nationally and internationally. Feedback on the conference was positive, leading to efforts to sustain the momentum achieved at the conference. New networking and educational opportunities are in development. Discussion: Libraries are uniquely positioned to lead educational and capacity-building efforts on campus around research reproducibility. Costs are high and partnerships are required, but such efforts can lead to positive change institution-wide. PMID- 29339942 TI - A new hat for librarians: providing REDCap support to establish the library as a central data hub. AB - Background: REDCap, an electronic data capture tool, supports good research data management, but many researchers lack familiarity with the tool. While a REDCap administrator provided technical support and a clinical data management support unit provided study design support, a service gap existed. Case Presentation: Librarians with REDCap expertise sought to increase and improve usage through outreach, workshops, and consultations. In collaboration with a REDCap administrator and the director of the clinical data management support unit, the role of the library was established in providing REDCap training and consultations. REDCap trainings were offered to the medical center during the library's quarterly data series, which served as a springboard for offering tailored REDCap support to researchers and research groups. Conclusions: Providing REDCap support has proved to be an effective way to associate the library with data-related activities in an academic medical center and identify new opportunities for offering data services in the library. By offering REDCap services, the library established strong partnerships with the Information Technology Department, Clinical Data Support Department, and Compliance Office by filling in training gaps, while simultaneously referring users back to these departments when additional expertise was required. These new partnerships continue to grow and serve to position the library as a central data hub in the institution. PMID- 29339943 TI - The case for consistent use of medical eponyms by eliminating possessive forms. PMID- 29339944 TI - Building a body of knowledge: sickle cell and libraries. PMID- 29339946 TI - Functional Heartburn. PMID- 29339945 TI - Correction. AB - [This corrects the article on p. 240 in vol. 105, PMID: 28670211.]. PMID- 29339947 TI - Vaccination and Health Maintenance Issues to Consider in Patients With Inflammatory Bowel Disease. AB - Patients with inflammatory bowel disease (IBD) do not receive routine preventive care at the same rate as the general population. IBD places patients at increased risk for developing vaccine-preventable illnesses. This risk is further exacerbated by immunosuppressive therapy. This article highlights the necessary vaccinations for IBD patients and the timing of vaccination for immunosuppressed patients, and discusses the health maintenance needs and preventive care issues related to heart disease, smoking, osteoporosis, mental health, cervical cancer, and skin cancer. PMID- 29339949 TI - Intragastric Balloons for Obesity Management. PMID- 29339948 TI - Update on Functional Heartburn. AB - The definition of functional heartburn has been refined over the years. It is currently described, based upon Rome IV criteria, as typical heartburn symptoms in the presence of normal upper endoscopy findings (including normal biopsies), normal esophageal pH testing, and a negative association between symptoms and reflux events. Functional heartburn is very common, affecting women more than men, and with reflux hypersensitivity makes up the majority of heartburn patients who fail twice-daily proton pump inhibitor therapy. These disorders overlap with other functional gastrointestinal disorders and are often accompanied by psychological comorbidities. Diagnosis is made by using endoscopy with esophageal biopsies, wireless pH capsule, pH-impedance monitoring, and high-resolution esophageal manometry. Additional diagnostic tools that may be of value include magnification endoscopy, chromoendoscopy, narrow-band imaging, autofluorescence imaging, mucosal impedance, impedance baseline values, and histopathology scores. Functional heartburn is primarily treated with neuromodulators. Psychological intervention and complementary and alternative medicine may also play important roles in the treatment of these patients. PMID- 29339950 TI - Beta-Catenin Staining of Hepatocellular Adenomas. PMID- 29339951 TI - Benefits, Concerns, and Future Directions of Biosimilars in Inflammatory Bowel Disease. PMID- 29339952 TI - Narrow-Band Imaging for Diagnosing Gastroesophageal Reflux Disease. PMID- 29339954 TI - Highlights in Clostridium difficile Infection From the World Congress of Gastroenterology at ACG 2017: October 13-18, 2017 * Orlando, Florida. PMID- 29339953 TI - Overview of the Updated AASLD Guidelines for the Management of HCC. PMID- 29339955 TI - Highlights in Functional Dyspepsia Treatment From Digestive Disease Week 2017: May 6-9, 2017 * Chicago, Illinois. PMID- 29339956 TI - CSACI position statement: prescribing sublingual immunotherapy tablets for aeroallergens. PMID- 29339957 TI - A Case of Synchronised Pupillary and Nasal Cycling: Evidence for a Central Autonomic Pendulum? AB - We previously reported that some healthy individuals show alternating anisocoria. We now describe one such individual who also exhibits a classic nasal cycle (alternating periods of nasal congestion and decongestion). We made measurements of his pupil asymmetry and nasal asymmetry at 21 different time points and found that these variables were always synchronised such that greater nasal airflow was invariably found on the same side as the larger pupil. We hypothesise that a common central oscillator may be responsible for co-modulating the sympathetic outflow to both nasal vessels and iris dilator muscles in some healthy individuals. PMID- 29339959 TI - Medical Cannabis, a Beneficial High in Treatment of Blepharospasm? An Early Observation. AB - The objective of this study was to observe the effect of medical cannabis in benign essential blepharospasm (BEB) as an adjunct to botulinum toxin. A retrospective chart review was performed on patients certified for medical cannabis use for BEB from September 2015 to May 2016. Patient demographics and responses, cannabis history, and severity indices were collected. Ten patients were certified for medical cannabis use. Five met the inclusion criteria, which was any patient with a diagnosis of BEB receiving standard botulinum toxin treatment who had started medical cannabis treatment by a registered distributor within the state, and was contactable by phone. Four patients discontinued use. Three out of four patients (75%) reported symptomatic improvement. Medical cannabis is an accepted therapy for muscle spastic disorders. Its potential as an adjunctive therapy for BEB remains unknown, and further investigations would be of benefit. PMID- 29339958 TI - Validation of Simplified Visual Acuity Testing Protocols in Amyotrophic Lateral Sclerosis. AB - High- and low-contrast visual acuity (HCVA, LCVA) are potential quantitative markers of neurological dysfunction in amyotrophic lateral sclerosis (ALS). The complex nature and duration of gold standard (GS) protocols precludes widespread use in neurology settings. This study compares simplified to GS visual acuity (VA) protocols. Monocular HCVA and LCVA were measured in ALS (n = 10) and control (n = 4) subjects using six protocols, varying by two chart and three refraction methods. Intraclass correlation coefficients between simplified and GS protocols ranged from 0.83 to 0.98 (HCVA, excellent agreement) and 0.56 to 0.75 (LCVA, moderate agreement). Differences between LCVA and GS protocols exceeded test retest reliability. Simplified HCVA protocols using LCD (liquid crystal display) tablet charts and/or pinhole correction produced valid measurements. None of the modified LCVA testing protocols produced valid measurements. PMID- 29339960 TI - Which Differences in Priming Effect Between Neglect and Hemianopia? A Case Description of a Bilateral Brain-Lesioned Patient. AB - It is widely known that visuospatial neglect and hemianopia maybe superimposed. We considered the differences in implicit information processing which is effective in patients with neglect but not with hemianopia. We then hypothesize that a prime-word in the neglected field should determine a semantic activation effect but not in a blind hemifield. Moreover eye movements could provide further details. In this work we considered a patient with a bilateral with the presence of either a left visual neglect and a right homonymous hemianopia. Our results supported implicit information processing in the space affected by neglect but not by hemianopia. PMID- 29339961 TI - Skew Deviation and Partial Ocular Tilt Reaction Due to Intratympanic Gentamicin Injection, with Review of the Literature. AB - Skew deviation is a rare side effect of intratympanic gentamicin injection for intractable Meniere's disease. When the skew deviation is accompanied by pathologic head tilt and ocular torsion, the result is an ocular tilt reaction (OTR). The authors report the case of a 56-year-old man with refractory Meniere's disease who developed binocular vertical diplopia following intratympanic gentamicin injection and was found to have skew deviation and a partial ocular tilt reaction. The authors also review the reported cases of skew deviation following intratympanic gentamicin and confirm this phenomenon, which has only rarely been reported in the literature. PMID- 29339962 TI - Three New PAX2 Gene Mutations in Patients with Papillorenal Syndrome. AB - Papillorenal syndrome (PAPRS; Mendelian Inheritance in Man [MIM] 120330) is an autosomal dominant disease characterised by the presence of congenital renal and optic nerve abnormalities associated with mutations of the PAX2 gene. In this article, the authors present four patients with PAPRS who are carriers of three new PAX2 mutations, as well as another patient with a possible non-pathogenic variant of the PAX2 gene. All patients were given a full neurophthalmological examination, and all patients underwent a genetic test for PAX2. Patients 1 and 2 presented with the classic signs of PAPRS: renal disease associated with a congenitally abnormal optic disc, whereas patients 3 and 4 only presented with a congenital optic nerve abnormality and no renal involvement. In patients 1 and 2, the optic nerves were affected by the presence of a central excavation within the optic disc, absence of the central retinal artery, as well as multiple cilioretinal arteries radiating from the periphery of the optic disc. Bilateral optic nerve pits were seen in patient 3, and lastly, in patient 4 there was the presence of superficial gliotic tissue on the left optic disc. All patients presented with a missense mutation in the PAX2 gene, where in patient 4 possibly being only a non-pathogenic variant of the gene. In conclusion, the authors present two patients with classic clinical signs of PAPRS, having two new PAX2 mutations, which until now have not been described in the current literature; another patient with a new PAX2 mutation showing only ocular manifestations of the disease, and lastly, a patient who is a carrier of a variant of the PAX2 gene has a congenitally abnormal optic disc, which is probably not related to PAPRS. PMID- 29339963 TI - Infiltrative Optic Neuropathies: Opening Doors to Sinister Pathologies. AB - Optic disc edema may be caused by a number of conditions. A commonly ignored but important aspect is the presence of "infiltration" of disc; that may closely mimic disc edema. Disc edema, optic nerve dysfunction and a normal appearing disc in any combination may occur in infiltrative optic neuropathies. Identifying disc infiltration can aid in diagnosis of many sinister pathologies even in the absence of other specific clinical features. We describe two patients presenting with optic nerve dysfunction and infiltrated disc appearance, which on investigations were found to have underlying malignancies thereby underscoring the importance of detecting infiltrative optic neurpathies. PMID- 29339964 TI - Cerebral Venous Thrombosis with Papilloedema Secondary to Skull Base Plasmacytoma. AB - A 60-year-old woman with history of multiple myeloma was in remission after stem cell transplant 6 years prior. She was undergoing work-up for headaches that were thought to be secondary to a right mastoiditis seen on magnetic resonance imaging (MRI). On routine eye exam, papilloedema was noted. A lumbar puncture was performed, with elevated opening pressure with normal constituents. She was an atypical age for idiopathic intracranial hypertension, and her mastoiditis raised concern for secondary cerebral venous sinus thrombosis. Magnetic resonance venography (MRV) was performed showing poor flow in the right sigmoid sinus, and computed tomography venography (CTV) showed lack of contrast enhancement distal to the right sigmoid sinus, consistent with occlusion. There was also an enhancing mass inferior to the right occipital bone. Biopsy confirmed recurrent plasma cell myeloma. She was treated with chemotherapy, radiation, and warfarin for presumed cerebral venous sinus thrombosis. PMID- 29339965 TI - Bilateral Radiation Optic Neuropathy Following Concurrent Chemotherapy and Radiation in Glioblastoma. AB - Radiation optic neuropathy (RON) is an iatrogenic complication that causes severe, irreversible vision loss within months to years following radiation to lesions close to the visual pathway. The authors describe a case of RON in glioblastoma after radio-sensitisation with temozolomide with sequential involvement of both optic nerves. This case provides a timeline for clinical and imaging findings with RON and specifically resolution of nerve enhancement. The authors also highlight the potential of an increase in incidence of RON in glioblastoma with advances in survival seen with greater use of second-line chemotherapy and even re-radiation. PMID- 29339966 TI - Acute diesel exhaust exposure and postural stability: a controlled crossover experiment. AB - Recent epidemiological evidence connects ambient air pollutants to adverse neurobehavioural effects in adults. In animal models, subchronic controlled exposures to diesel exhaust (DE) have also showed evidence of neuroinflammation. Evidence suggests that DE not only affects outcomes commonly associated with cognitive dysfunction, but also balance impairment. We conducted a controlled human exposure experiment with 28 healthy subjects (average age = 28 years (SD = 7.1; range = 21-49); and 40% female) who were exposed to two conditions, filtered air (FA) and DE (300 MUg PM2.5/m3) for 120 min, in a double-blinded crossover study with randomized exposures separated by four weeks. Postural stability was assessed by the Balance Error Scoring System (BESS), a brief, easily-administered test of static balance. The BESS consists of a sequence of three stances performed on two surfaces. With hands on hips and eyes closed, each stance is held for 20 s. "Error" points are awarded for deviations from those stances. Pre- and immediately post-exposure BESS "error" point totals were calculated and the difference between the two timepoints were compared for each of the two exposure conditions. A mixed effect model assessed the significance of the association. While our data demonstrates a trend of reduced postural stability in response to exposure to DE, exposure was not significantly associated with BESS value. This is the first study to investigate changes in postural stability as a result of exposure to DE in human subjects. PMID- 29339967 TI - Preventing neonatal herpes infections through maternal immunization. PMID- 29339968 TI - Analysis of questions about use of drugs in breastfeeding to Norwegian drug information centres. AB - Background: Health professionals may advise women to either stop breastfeeding or drug treatment due to restrictive advice in drug monographs. Regional medicines information and pharmacovigilance centres in Norway (RELIS) provide free and industry-independent answers to questions about drugs and breastfeeding documented in a full-text, searchable database (RELIS database). We used the RELIS database to describe which health care practitioners sought information about medication safety in lactation, most common drugs involved, advice provided and which resources were used to provide the advice. Methods: A random selection of 100 question-answer pairs (QAPs) from the RELIS database indexed with "BREASTFEEDING" in the period from January 2011 to December 2015 was analysed. Inclusion criteria were queries from health professionals about drugs. Questions about herbal supplements and other exposures not classified as drugs were excluded. The QAPs were manually analysed for compatibility of one or several drugs with breastfeeding, health care profession and workplace of enquirer in addition to advice and search strategy used. Results: In the 100 QAPs there were enquires about 152 drugs. Seventy-four questions concerned a single drug, but the number of drugs evaluated varied between 1 and 16. Fifty-nine questions were from physicians, 34 from nurses or midwives, two from pharmacists and two from other health professionals. Questions from physicians contained 93 drug evaluations (61%), nurses or midwives 47 (31%) and pharmacists seven (5%). The most frequent categories of drugs were antidepressants, antiepileptics and immunosuppressants. The most asked about drugs were lamotrigine, codeine, quetiapine and escitalopram. Fifty-nine percent of the drugs were deemed safe while breastfeeding, 16% if precautions were taken and 12% not recommended. Thirty-nine percent of the drug evaluations used an advanced literature search strategy, and this was significantly (p < 0.05) more likely when the enquirer was a physician. Conclusions: This analysis of questions to Norwegian medicines information centres about medicine use in breastfeeding indicates the need for communication about safety of drugs affecting the nervous system, primarily to medical doctors and midwives. In the majority of cases the medicine information centre can reassure about the safety of breastfeeding while taking a drug. PMID- 29339969 TI - A new toolset for protein expression and subcellular localization studies in citrus and its application to citrus tristeza virus proteins. AB - Background: Transient gene expression is a powerful tool to study gene function in plants. In citrus, Agrobacterium transformation is the method of choice for transient expression studies, but this method does not work efficiently with many gene constructs, and there is a need for a more robust transient expression system in citrus leaves. Biolistic particle delivery is an alternative to Agrobacterium transformation, and in some plants, such as Arabidopsis, gives higher transformation rates in leaf tissues than Agrobacterium. Results: Here we describe an improved method for gene expression in epidermal cells of citrus leaves, using the Bio-Rad Helios gene-gun. Gene-gun bombardment of GFP-HDEL produced highly efficient gene expression in large number of cells and in different citrus varieties. We show here that transiently expressed proteins have maintained their functions in plants, and this is demonstrated by the subcellular localization of different organelle markers, and by a functional assay of Xanthomonas citri effector AvrGF1. To further expand the available tools for subcellular localization studies in citrus, we also generated a new set of transgenic citrus plants that contain organelle markers labelling the nuclei, actin and endoplasmic reticulum. Using these new tools, we were able to show that the coat protein of citrus tristeza virus localizes to the cytoplasm and nuclei when expressed in epidermal cells fused to GFP. Conclusion: We have optimized a new method for transient expression in citrus leaves, to give highly reproducible and efficient transformation without producing a high level of injury or artifacts to the bombarded tissue. We also generated the first set organelle markers for use in citrus. These fluorescent protein markers label the nucleus and the actin. With these new resources, protein activity and subcellular localization can be studied in citrus rapidly and in high throughput. The handheld gene-gun device can also be used in the grove to deliver therapies for citrus diseases, such as canker and Huanglongbing, into trees. PMID- 29339970 TI - A new image-based tool for the high throughput phenotyping of pollen viability: evaluation of inter- and intra-cultivar diversity in grapevine. AB - Background: Low pollen viability may limit grapevine yield under certain conditions, causing relevant economic losses to grape-growers. It is usually evaluated by the quantification of the number of viable and non-viable pollen grains that are present in a sample after an adequate pollen grain staining procedure. Although the manual counting of both types of grains is the simplest and most sensitive approach, it is a laborious and time-demanding process. In this regard, novel image-based approaches can assist in the objective, accurate and cost-effective phenotyping of this trait. Results: Here, we introduce PollenCounter, an open-source macro implemented as a customizable Fiji tool for the high-throughput phenotyping of pollen viability. This tool splits RGB images of stained pollen grains into its primary channels, retaining red and green color fractionated images (which contain information on total and only viable pollen grains, respectively) for the subsequent isolation and counting of the regions of interest (pollen grains). This framework was successfully used for the analysis of pollen viability of a high number of samples collected in a large collection of grapevine cultivars. Results revealed a great genetic variability, from cultivars having very low pollen viability (like Corinto Bianco; viability: 14.1 +/- 1.3%) to others with a very low presence of sterile pollen grains (Cuelga; viability: 98.2 +/- 0.5%). A wide range of variability was also observed among several clones of cv. Tempranillo Tinto (from 97.9 +/- 0.9 to 60.6 +/- 5.9%, in the first season). Interestingly, the evaluation of this trait in a second season revealed differential genotype-specific sensitivity to environment. Conclusions: The use of PollenCounter is expected to aid in different areas, including genetics research studies, crop improvement and breeding strategies that need of fast, precise and accurate results. Considering its flexibility, it can be used not only in grapevine, but also in other species showing a differential staining of viable and non-viable pollen grains. The wide phenotypic diversity observed at a species level, together with the identification of specific cultivars and clones largely differing in this trait, pave the way of further analyses aimed to understand the physiological and genetic causes driving to male sterility in grapevine. PMID- 29339971 TI - Terzyme: a tool for identification and analysis of the plant terpenome. AB - Background: Terpenoid hydrocarbons represent the largest and most ancient group of phytochemicals, such that the entire chemical library of a plant is often referred to as its 'terpenome'. Besides having numerous pharmacological properties, terpenes contribute to the scent of the rose, the flavors of cinnamon and the yellow of sunflowers. Rapidly increasing -omics datasets provide an unprecedented opportunity for terpenome detection, paving the way for automated web resources dedicated to phytochemical predictions in genomic data. Results: We have developed Terzyme, a predictive algorithm for identification, classification and assignment of broad substrate unit to terpene synthase (TPS) and prenyl transferase (PT) enzymes, known to generate the enormous structural and functional diversity of terpenoid compounds across the plant kingdom. Terzyme uses sequence information, plant taxonomy and machine learning methods for predicting TPSs and PTs in genome and proteome datasets. We demonstrate a significant enrichment of the currently identified terpenome by running Terzyme on more than 40 plants. Conclusions: Terzyme is the result of a rigorous analysis of evolutionary relationships between hundreds of characterized sequences of TPSs and PTs with known specificities, followed by analysis of genome-wide gene distribution patterns, ontology based clustering and optimization of various parameters for building accurate profile Hidden Markov Models. The predictive webserver and database is freely available at http://nipgr.res.in/terzyme.html and would serve as a useful tool for deciphering the species-specific phytochemical potential of plant genomes. PMID- 29339972 TI - Evaluation of green tea extract as a safe personal hygiene against viral infections. AB - Background: Viral infections often pose tremendous public health concerns as well as economic burdens. Despite the availability of vaccines or antiviral drugs, personal hygiene is considered as effective means as the first-hand measure against viral infections. The green tea catechins, in particular, epigallocatechin-3-gallate (EGCG), are known to exert potent antiviral activity. In this study, we evaluated the green tea extract as a safe personal hygiene against viral infections. Results: Using the influenza virus A/Puerto Rico/8/34 (H1N1) as a model, we examined the duration of the viral inactivating activity of green tea extract (GTE) under prolonged storage at various temperature conditions. Even after the storage for 56 days at different temperatures, 0.1% GTE completely inactivated 106 PFU of the virus (6 log10 reduction), and 0.01% and 0.05% GTE resulted in 2 log10 reduction of the viral titers. When supplemented with 2% citric acid, 0.1% sodium benzoate, and 0.2% ascorbic acid as anti-oxidant, the inactivating activity of GTE was temporarily compromised during earlier times of storage. However, the antiviral activity of the GTE was steadily recovered up to similar levels with those of the same concentrations of GTE without the supplements, effectively prolonging the duration of the virucidal function over extended period. Cryo-EM and DLS analyses showed a slight increase in the overall size of virus particles by GTE treatment. The results suggest that the virucidal activity of GTE is mediated by oxidative crosslinking of catechins to the viral proteins and the change of physical properties of viral membranes. Conclusions: The durability of antiviral effects of GTE was examined as solution type and powder types over extended periods at various temperature conditions using human influenza A/H1N1 virus. GTE with supplements demonstrated potent viral inactivating activity, resulting in greater than 4 log10 reduction of viral titers even after storage for up to two months at a wide range of temperatures. These data suggest that GTE-based antiviral agents could be formulated as a safe and environmentally friendly personal hygiene against viral infections. PMID- 29339973 TI - One-step production of C6-C8 carboxylates by mixed culture solely grown on CO. AB - Background: This study aimed at producing C6-C8 medium-chain carboxylates (MCCAs) directly from gaseous CO using mixed culture. The yield and C2-C8 product composition were investigated when CO was continuously fed with gradually increasing partial pressure. Results: The maximal concentrations of n-caproate, n heptylate, and n-caprylate were 1.892, 1.635, and 1.033 mmol L-1, which were achieved at the maximal production rates of 0.276, 0.442, and 0.112 mmol L-1 day 1, respectively. Microbial analysis revealed that long-term acclimation and high CO partial pressure were important to establish a CO-tolerant and CO-utilizing chain-elongating microbiome, rich in Acinetobacter, Alcaligenes, and Rhodobacteraceae and capable of forming MCCAs solely from CO. Conclusions: These results demonstrated that carboxylate and syngas platform could be integrated in a shared growth vessel, and could be a promising one-step technique to convert gaseous syngas to preferable liquid biochemicals, thereby avoiding the necessity to coordinate syngas fermentation to short-chain carboxylates and short-to-medium chain elongation. Thus, this method could provide an alternative solution for the utilization of waste-derived syngas and expand the resource of promising biofuels. PMID- 29339974 TI - Multidisciplinary treatment of patients with diabetes and hypertension: experience of a Brazilian center. AB - Background: Although multidisciplinary treatment is recommended for type 2 diabetes mellitus and hypertension (HTN), there is a lack of scientific literature supporting the hypothesis of extending this treatment strategy to patients with both diabetes and HTN. Aiming to report results of long-term multidisciplinary treatment for these patients and identify strategies to improve their management, we conducted this study. Methods: Data of patients with diabetes and HTN with regular follow-up visits in a multidisciplinary HTN treatment center from Brazil's Midwest were retrospectively assessed. Patients >= 18 years enrolled in the service by June 2017 with a minimum of three visits were included. Anthropometric, blood pressure (BP), laboratory, pharmacological treatment, lifestyle, and cardiovascular events data were collected from first (V1), intermediate (V2) and most recent (V3) visits to the service. BP < 130 * 80 mmHg, LDL-cholesterol (LDL-C) < 70 mg/dL and HbA1C < 7.0% were defined as treatment targets. Wilcoxon signed-rank test was used to compare variables along study visits. A linear regression model was built to identify variables associated with better overall patient control. Results: A total of 162 patients were included (mean age of 56.5 +/- 10.8 years). Median follow-up time was 60 (IQR 40-109) months, 80.2% of the sample was female and 83.3% had no cardiovascular event history. BP, total cholesterol, LDL-C, triglycerides and HbA1C values showed a significant trend to improve along the study visits (p < 0.001). Growing trend in aspirin (p = 0.045) and statins (p < 0.001) use was found, in addition to treatment compliance increase (p < 0.001). Significant improvement trends in BP (p < 0.001), LDL-C (p = 0.004) and HbA1C (p = 0.002) control were also found across visits. Control rates of BP, LDL-C and HbA1C in combination were low in V1, V2 and V3 (1.2, 1.9 and 6.8%, respectively), but showed significant improvement trend (p < 0.001). Treatment compliance (beta coefficient = 1.20; 95% CI 1.07-1.34; p < 0.001) was positively associated with better overall patients control. Conclusions: Multidisciplinary treatment of patients with diabetes and HTN significantly improved clinical and laboratory parameters, despite ageing of population evaluated. Although combined control of HbA1C, BP and LDL-cholesterol increased along follow-up, management of all these three conditions needs to improve, and focus on treatment compliance should be given to attain this goal. PMID- 29339975 TI - Genetic polymorphisms of antioxidant enzymes CAT and SOD affect the outcome of clinical, biochemical, and anthropometric variables in people with obesity under a dietary intervention. AB - Background: Genetic polymorphisms of antioxidant enzymes CAT, GPX, and SOD are involved in the etiology of obesity and its principal comorbidities. The aim of the present study was to analyze the effect of aforementioned SNPs over the output of several variables in people with obesity after a nutritional intervention. The study included 92 Mexican women, which received a dietary intervention by 3 months. Participants were genotyped and stratified into two groups: (1) carriers; mutated homozygous plus heterozygous (CR) and (2) homozygous wild type (WT). A comparison between CR and WT was done in clinical (CV), biochemical (BV), and anthropometric variables (AV), at the beginning and at the end of the intervention. Results: Participants (n = 92) showed statistically significant differences (p < 0.05) at the end of the nutritional intervention in several CV, BV, and AV. However, two kinds of responses were observed after genotyping participants: (A) CR and WT showed statistically significant differences (p < 0.05) in several CV, BV, and AV for the SNPs 599C>T GPX1 (rs1050450), - 251A>G SOD1 (rs2070424), and - 262C>T CAT (rs1001179). (B) Only CR showed statistically changes (p < 0.05) in several CV, BV, and AV for the SNPs - 21A>T CAT (rs7943316) and 47C>T SOD2 (rs4880). The dietary intervention effect was statistically significantly between the polymorphisms of 47C>T SOD2 and BMI, SBP, TBARS, total cholesterol, and C-LCL (p < 0.05) and between the polymorphisms of - 21A>T CAT (rs7943316) and SBP, DBP, total cholesterol, and atherogenic index (p < 0.05). Conclusion: People with obesity display different response in several CV, BV, and AV after a nutritional intervention, depending on the antioxidant genetic background of SOD and CAT enzymes. PMID- 29339976 TI - Detection of dioxin-induced demethylation of mouse Cyp1a1 gene promoter by a new labeling method for short DNA fragments possessing 5'-methylcytosine at the end. AB - Environmental factors stimulate alteration of DNA methylation level. Investigation of the genome-wide DNA methylation status is important for environmental health studies. We here designed a genomic DNA amplification and labeling protocol using a methylation-sensitive restriction enzyme HinP1 I. This method can specifically amplify genomic DNA fragments possessing methyl-CpG at the end. The fragments are a relatively short size and dominantly located on CpG islands. By using the samples prepared by this method, a dioxin-induced change in the methylation level of the mouse Cyp1a1 promoter was successfully evaluated using oligonucleotide probes covalently bound onto a glass plate. The method developed in this paper would be useful for other genome-wide analysis platforms for the large scale epigenome-wide association studies (EWAS) including human epidemiological samples. PMID- 29339977 TI - Necessity for retrospective evaluation of past-positive chemicals in in vitro chromosomal aberration tests using recommended cytotoxicity indices. AB - We have demonstrated that retrospective evaluation of existing data of in vitro chromosomal aberration test using the new cytotoxicity indices RICC (relative increase in cell count) or RPD (relative population doubling) reduces the false positive rate. We have constructed an algorithm to predict the likelihood that past-positive results would differ when retested accordingly. Here, we emphasize the importance of reviewing existing in vitro chromosomal aberration test results. The present Letter not only supports the rediscovery of potentially useful chemicals excluded from further development as a result of misclassification due to in vitro false-positive results, but also contributes to the development of a precise Quantitative Structure-Activity Relationship (QSAR) model by providing an appropriate training data-set. Furthermore, re-evaluation is expected to provide novel insights into underlying mechanisms and/or key structures involved in the development of chromosomal aberrations. PMID- 29339978 TI - Increase of somatic cell mutations in oxidative damage-sensitive drosophila. AB - Background: Oxidative damage is an important genotoxic source for almost all organisms. To efficiently detect mutations induced by oxidative damage, we previously developed a urate-null Drosophila strain. Using this Drosophila strain, we showed the mutagenic activity of environmental cigarette smoke (ECS) and the herbicide paraquat, which are known to produce reactive oxygen species (ROS). In the present study, we examined the mutagenic activities of carcinogenic mutagens that are considered to cause mutations by adduct formation, alkylation, or crosslinking of cellular DNA in the oxidative damage-sensitive Drosophila to evaluate how the oxidative damage induced by these mutagens is involved in causing mutations. In addition, we evaluated whether these oxidative damage sensitive flies may be useful for mutation assays. Methods: We performed the wing spot test in oxidative damage-sensitive Drosophila (urate-null strains) to examine the mutagenicity of 2-amino-3,8-dimethylimidazo[4,5-f]-quinoxaline (MeIQx), mitomycin C (MMC), 4-nitroquinoline N-oxide (4NQO), N-nitrosodimethyl amine (NDMA), and N-nitrosodiethylamine (NDEA). We also observed the mutagenicity of X-ray irradiation as a control in which mutations should be mainly caused by oxidative damage. Results: As expected, the mutagenic activity of X-ray irradiation was higher in the urate-null Drosophila than in the wild-type Drosophila. The mutagenic activities of the tested compounds were also higher in the urate-null Drosophila than in the wild-type Drosophila. In experiments using another urate-null strain, the mutagenicity of N-nitrosodialkylamines was also higher in the urate-null flies than in the wild-type ones. Conclusions: The tested compounds in this study were more mutagenic in urate-null Drosophila than in wild-type Drosophila. It was supposed that ROS were generated and that the ROS might be involved in mutagenesis. The present results support the notion that in addition to causing DNA lesions via adduct formation, alkylation, or DNA crosslinking, these mutagens also cause mutations via ROS-induced DNA damage. As such, urate-null Drosophila appear to be useful for detecting the mutagenic activity of various mutagens, especially those that produce reactive oxygen. If the mutation rate increases on a mutation assay using urate-null Drosophila, it might suggest that the mutagen generates ROS, and that the produced ROS is involved in causing mutations. PMID- 29339980 TI - Re: The Integration of Internal and External Training Load Metrics in Hurling - Interpretation Beyond a Significant Relationship Required. PMID- 29339979 TI - BRCA1 and BRCA2 mutation spectrum - an update on mutation distribution in a large cancer genetics clinic in Norway. AB - Background: Founder mutations in the two breast cancer genes, BRCA1 and BRCA2, have been described in many populations, among these are Ashkenazi-Jewish, Polish, Norwegian and Icelandic. Founder mutation testing in patients with relevant ancestry has been a cost-efficient approach in such populations. Four Norwegian BRCA1 founder mutations were defined by haplotyping in 2001, and accounted for 68% of BRCA1 mutation carriers at the time. After 15 more years of genetic testing, updated knowledge on the mutation spectrum of both BRCA1 and BRCA2 in Norway is needed. In this study, we aim at describing the mutation spectrum and frequencies in the BRCA1/2 carrier population of the largest clinic of hereditary cancer in Norway. Methods: A total of 2430 BRCA1 carriers from 669 different families, and 1092 BRCA2 carriers from 312 different families were included in a quality of care study. All variants were evaluated regarding pathogenicity following ACMG/ENIGMA criteria. The variants were assessed in AlaMut and supplementary databases to determine whether they were known to be founder mutations in other populations. Results: There were 120 different BRCA1 and 87 different BRCA2 variants among the mutation carriers. Forty-six per cent of the registered BRCA1/2 families (454/981) had a previously reported Norwegian founder mutation. The majority of BRCA1/2 mutations (71%) were rare, each found in only one or two families. Fifteen per cent of BRCA1 families and 25% of BRCA2 families had one of these rare variants. The four well-known Norwegian BRCA1 founder mutations previously confirmed through haplotyping were still the four most frequent mutations in BRCA1 carriers, but the proportion of BRCA1 mutation carriers accounted for by these mutations had fallen from 68 to 52%, and hence the founder effect was weaker than previously described. Conclusions: The spectrum of BRCA1 and BRCA2 mutations in the carrier population at Norway's largest cancer genetics clinic is diverse, and with a weaker founder effect than previously described. As a consequence, retesting the families that previously have been tested with specific tests/founder mutation tests should be a prioritised strategy to find more mutation positive families and possibly prevent cancer in healthy relatives. PMID- 29339981 TI - Using Bilateral Functional and Anthropometric Tests to Define Symmetry in Cross Country Skiers. AB - The aim of this study was to evaluate the symmetry of anthropometry and muscle function in cross-country skiers and their association to vertical jumping power. Twenty cross-country skiers were recruited (21.7 +/- 3.8 yrs, 180.6 +/- 7.6 cm, 73.2 +/- 7.6 kg). Anthropometric data was obtained using an iDXA scan. VO2max was determined using the diagonal stride technique on a ski treadmill. Bilateral functional tests for the upper and lower body were the handgrip and standing heel rise tests. Vertical jump height and power were assessed with a counter movement jump. Percent asymmetry was calculated using a symmetry index and four absolute symmetry index levels. At a group level the upper body was more asymmetrical with regard to lean muscle mass (p = 0.022, d = 0.17) and functional strength (p = 0.019, d = 0.51) than the lower body. At an individual level the expected frequencies for absolute symmetry level indexes showed the largest deviation from zero for the heel-rise test (chi2 = 16.97, p = 0.001), while the leg lean mass deviated the least (chi2 = 0.42, p = 0.517). No relationships were observed between absolute symmetry level indexes of the lower body and counter movement jump performance (p > 0.05). As a group the skiers display a more asymmetrical upper body than lower body regarding muscle mass and strength. Interestingly at the individual level, despite symmetrical lean leg muscle mass the heel-rise test showed the largest asymmetry. This finding indicates a mismatch in muscle function for the lower body. PMID- 29339982 TI - Relationships between Mechanical Variables in the Traditional and Close-Grip Bench Press. AB - The study aim was to determine relationships between mechanical variables in the one-repetition maximum (1RM) traditional bench press (TBP) and close-grip bench press (CGBP). Twenty resistance-trained men completed a TBP and CGBP 1RM. The TBP was performed with the preferred grip; the CGBP with a grip width of 95% biacromial distance. A linear position transducer measured: lift distance and duration; work; and peak and mean power, velocity, and force. Paired samples t tests (p < 0.05) compared the 1RM and mechanical variables for the TBP and CGBP; effect sizes (d) were also calculated. Pearson's correlations (r; p < 0.05) computed relationships between the TBP and CGBP. 1RM, lift duration, and mean force were greater in the TBP (d = 0.30-3.20). Peak power and velocity was greater for the CGBP (d = 0.50-1.29). The 1RM TBP correlated with CGBP 1RM, power, and force (r = 0.685-0.982). TBP work correlated with CGBP 1RM, lift distance, power, force, and work (r = 0.542-0.931). TBP power correlated with CGBP 1RM, power, force, velocity, and work (r = 0.484-0.704). TBP peak and mean force related to CGBP 1RM, power, and force (r = 0.596-0.980). Due to relationships between the load, work, power, and force for the TBP and CGBP, the CGBP could provide similar strength adaptations to the TBP with long-term use. The velocity profile for the CGBP was different to that of the TBP. The CGBP could be used specifically to improve high-velocity, upper-body pushing movements. PMID- 29339983 TI - Analysis of the Hamstring Muscle Activation During two Injury Prevention Exercises. AB - The aim of this study was to perform an electromyographic and kinetic comparison of two commonly used hamstring eccentric strengthening exercises: Nordic Curl and Ball Leg Curl. After determining the maximum isometric voluntary contraction of the knee flexors, ten female athletes performed 3 repetitions of both the Nordic Curl and Ball Leg Curl, while knee angular displacement and electromyografic activity of the biceps femoris and semitendinosus were monitored. No significant differences were found between biceps femoris and semitendinosus activation in both the Nordic Curl and Ball Leg Curl. However, comparisons between exercises revealed higher activation of both the biceps femoris (74.8 +/- 20 vs 50.3 +/- 25.7%, p = 0.03 d = 0.53) and semitendinosus (78.3 +/- 27.5 vs 44.3 +/- 26.6%, p = 0.012, d = 0.63) at the closest knee angles in the Nordic Curl vs Ball Leg Curl, respectively. Hamstring muscles activation during the Nordic Curl increased, remained high (>70%) between 60 to 40 degrees of the knee angle and then decreased to 27% of the maximal isometric voluntary contraction at the end of movement. Overall, the biceps femoris and semitendinosus showed similar patterns of activation. In conclusion, even though the hamstring muscle activation at open knee positions was similar between exercises, the Nordic Curl elicited a higher hamstring activity compared to the Ball Leg Curl. PMID- 29339984 TI - Functional vs. Traditional Analysis in Biomechanical Gait Data: An Alternative Statistical Approach. AB - In human motion studies, discrete points such as peak or average kinematic values are commonly selected to test hypotheses. The purpose of this study was to describe a functional data analysis and describe the advantages of using functional data analyses when compared with a traditional analysis of variance (ANOVA) approach. Nineteen healthy participants (age: 22 +/- 2 yrs, body height: 1.7 +/- 0.1 m, body mass: 73 +/- 16 kg) walked under two different conditions: control and pain+effusion. Pain+effusion was induced by injection of sterile saline into the joint capsule and hypertonic saline into the infrapatellar fat pad. Sagittal-plane ankle, knee, and hip joint kinematics were recorded and compared following injections using 2*2 mixed model ANOVAs and FANOVAs. The results of ANOVAs detected a condition * time interaction for the peak ankle (F1,18 = 8.56, p = 0.01) and hip joint angle (F1,18 = 5.77, p = 0.03), but did not for the knee joint angle (F1,18 = 0.36, p = 0.56). The functional data analysis, however, found several differences at initial contact (ankle and knee joint), in the mid-stance (each joint) and at toe off (ankle). Although a traditional ANOVA is often appropriate for discrete or summary data, in biomechanical applications, the functional data analysis could be a beneficial alternative. When using the functional data analysis approach, a researcher can (1) evaluate the entire data as a function, and (2) detect the location and magnitude of differences within the evaluated function. PMID- 29339985 TI - Butterfly Sprint Swimming Technique, Analysis of Somatic and Spatial-Temporal Coordination Variables. AB - The aim of this study was to investigate somatic properties and force production of leg extensor muscles measured in the countermovement jump test (CMJ), as well as to analyse kinematic variables of sprint surface butterfly swimming. Thirty four male competitive swimmers were recruited with an average age of 19.3 +/- 1.83 years. Their average body height (BH) was 183.7 +/- 5.93 cm, body fat content 10.8 +/- 2.64% and body mass (BM) 78.3 +/- 5.0 kg. Length measurements of particular body segments were taken and a counter movement jump (CMJ) as well as an all-out 50 m butterfly speed test were completed. The underwater movements of the swimmers' bodies were recorded with a digital camera providing side-shots. We registered a significant relationship between body mass (r = 0.46), lean body mass (r = 0.48) and sprint surface butterfly swimming (VSBF). The anaerobic power measured in the CMJ test, total body length (TBL) as well as upper and lower extremity length indices did not influence swimming speed significantly. The temporal entry-kick index (the time ratio between the first kick and arm entry) significantly influenced VSBF (r = -0.45). Similarly, medium power of the coefficient was indicated between a) stroke rate kinematics (SR), b) duration of the first leg kick (LP1), c) air phase duration of arm recovery (Fly-arm), and VSBF (r = 0.40; r = 0.40 and r = 0.41, respectively). The entry-kick temporal index showed that, in the butterfly cycle, an appropriately early executed initial kick when compared to arm entry was associated with a longer arm propulsion phase, which in turn was associated with minimizing resistive gliding phases and enabled relatively longer and less resistive air arm recovery (higher value of the fly-arm index). The higher value of SR kinematic was another important element of the best butterfly results in this study. PMID- 29339987 TI - Physiological Demands, Morphological Characteristics, Physical Abilities and Injuries of Female Soccer Players. AB - The popularity of female soccer is increasing as well as the number of females playing soccer. Similarly, over the last twenty or so years, research in soccer has increased significantly, but a large disparity exists in the volume of studies involving male and female players. As a consequence of this, female players remain less well understood compared to males. The purpose of the present narrative review was to describe morphological characteristics, physiological demands, physical abilities and injuries in female soccer players. Physiological demands are similar between men's and women's soccer, but competitive women's matches were characterized by nearly 33% less distance covered, although at higher intensity levels (maximum speeds greater than 15 km/h) than typically found in the men's game. Sub-elite female players also tended to run less at higher intensity levels at the end of both halves in comparison with elite female players. High intensity running is an important factor of success in soccer since many critical moments of the game occur under this condition. The ability to rapidly change direction also determined elite, sub-elite and amateur levels. The implementation of functional training, which focused on soccer-specific drills and plyometric exercises, to improve explosive power, may improve conditioning in female soccer players as well as decrease the risk of injuries which was 3-8 times higher in females compared to males. This review presents an in-depth overview of the most influential factors for determining success in female soccer. PMID- 29339986 TI - Seeking Optimal Nutrition for Healthy Body Mass Reduction among Former Athletes. AB - The aim of the study was to investigate the efficacy of 6 week Mediterranean diet or 30% calorie restriction on the fatty acid profile and eicosanoids (hydroxyoctadecadienoi acids and hydroxyeicosatetraenoic acids) concentration. Furthermore, basic biochemical variables such as insulin, glucose, HOMA-IR, and a lipid profile were estimated. The study enrolled 94 Caucasian former athletes aged 20-42, with body height of 179 +/- 16.00 cm and body mass of 89.26 +/- 13.25 kg who had not been active for at least 5 years. The subjects were randomly assigned to one of the three intervention groups: CR group - the 30% calorie restriction (n = 32), MD group - the Mediterranean diet (n = 34), and C group - a control group (n = 28). The pattern of nutrition was analysed before and after the experiment using the 72 h food diaries. In order to evaluate the effect of diet intervention, the following variables were measured: anthropometrics, basic biochemical variables (insulin, fasting glucose, HOMA-IR, lipid profile), fatty acids and their blood derivatives profiles. The CR group showed significantly lower levels of several biochemical variables, i.e., BMI, total cholesterol LDL, TG, total lipids, insulin and HOMA - IR (p < 0.05). Subjects consuming the MD diet significantly decreased their BMI and reduced the level of total lipids (p < 0.05). We did not find any significant changes in the C group. The analysis of the fatty acid profile revealed that the CR group had a significantly decreased EPA level (p < 0.05). The MD group showed a significantly increased level of the DHA (p < 0.05) and improvement in the omega - 3 index (p < 0.05). Subjects following the MD also showed significantly lower concentrations of 15 - hydroxyicosatetraenoic acid (15-HETE). We did not observe any significant differences between the CR and C groups. Within short time, calorie restriction helps to improve lipid variables and insulin resistance. The MD diet seems to be more advantageous in the decrease of inflammation, but does not improve basic biochemical variables. We can conclude that calorie restriction can be a good choice for former athletes, although EPA and DHA supplementation is needed. PMID- 29339988 TI - Impact of Futsal and Swimming Participation on Bone Health in Young Athletes. AB - Physical activity plays a crucial role in bone mass acquisition during childhood and adolescence, with weightbearing and high-impact sport activities being more beneficial. This study sought to evaluate the impact of different sports activities on bone mineral density and content in male Portuguese athletes. Seventy adolescent boys (aged 12-15 years) including 28 futsal players (FG), 20 swimmers (SG) and 22 non-athletic adolescents used as control subjects (CG), participated in the current study. Areal bone mineral density (aBMD) and areal bone mineral content (aBMC) were measured by dual energy x-ray absorptiometry (DEXA). Futsal players had significantly higher aBMD (lumbar spine - FG: 0.95 +/- 0.18, SG: 0.80 +/- 0.13, CG: 0.79 +/- 0.13 g/cm2, p = 0.001; pelvis - FG: 1.17 +/ 0.21, SG: 0.91 +/- 0.12, CG: 0.98 +/- 0.10 g/cm2, p < 0.001; lower limbs - FG: 1.21 +/- 0.19, SG: 0.97 +/- 0.10, CG: 0.99 +/- 0.09 g/cm2, p < 0.001) and aBMC (lumbar spine - FG: 51.07 +/- 16.53, SG: 40.19 +/- 12.47, CG: 40.50 +/- 10.53 g, p = 0.013; pelvis - FG: 299.5 +/- 110.61, SG: 170.02 +/- 55.82, CG: 183.11 +/- 46.78 g, p < 0.001; lower limbs - FG: 427.21 +/- 117.11, SG: 300.13 +/- 76.42, CG: 312.26 +/- 61.86 g/cm2, p < 0.001) than swimmers and control subjects. Data suggest that futsal, as a weightbearing and high or odd-impact sport, may improve bone mass during childhood and adolescence. PMID- 29339989 TI - Association between Match Activity Variables, Measures of Fatigue and Neuromuscular Performance Capacity Following Elite Competitive Soccer Matches. AB - The aim of the study was to assess the relationships between match activity variables, subsequent fatigue and neuromuscular performance capacity in elite soccer players. Subjects (n = 10) were professional soccer players participating in the English Championships. Match activity variables and markers of fatigue status were measured before and following two matches. Creatine kinase (CK) and muscle soreness were measured at baseline, immediately following, as well as 40 and 64 h post-match. Countermovement jump performance and perceived ratings of wellness were measured at baseline, then 40 and 64 h post-match. Relationships were shown between CK and the total number of accelerations and decelerations immediately (r = 0.63; large), 40 h (r = 0.45; moderate) and 64 h post-match (r = 0.35; moderate) (p < 0.05). Relationships between CK and total sprint distance (r = 0.39; moderate) and the number of sprints (r = 0.35; moderate) 40 h post-match (p < 0.05) were observed. Furthermore, relationships were shown between the perceived rating of wellness and number of accelerations 40 (r = 0.52; large) and 64 h (r = 0.40; moderate) post-match, sprint distance 40 h post-match (r = 0.40; moderate) and the total number of sprints 40 h post-match (r = 0.51; large) (p < 0.05). The quantification of match activity variables, particularly the total number of accelerations and decelerations and the number of sprints, provides insights into the fatigue status in elite soccer players 40 and 64 h post-match. PMID- 29339990 TI - High-Intensity Small-Sided Games versus Repeated Sprint Training in Junior Soccer Players. AB - The aim of this study was to compare the effects of high-intensity small-sided games training (SSGT) versus repeated-sprint training (RST) on repeated-sprint ability (RSA), soccer specific endurance performance and short passing ability among junior soccer players. The junior soccer players were recruited from of a professional team (age 16.9 +/- 1.1 years). The tests included the repeated shuttle-sprint ability test (RSSAT), Yo-Yo Intermittent Recovery Test level 1 (Yo Yo IR1) and Loughborough Soccer Passing Test (LSPT). Nineteen participants were randomly assigned to either the small-sided games training (SSGTG) (n = 10) or repeated-sprint training group (RSTG) (n = 9). Small-sided games or repeated sprint training were added to the regular training sessions for two days of the regular practice week. The Wilcoxon signed-rank and Mann-Whitney U tests were used to examine differences in groups and training effects. A time x training group effect was found in the improvement of short-passing ability for the smallsided games training group which showed significantly better scores than the repeated-sprint training group (p <= 0.05). Both groups showed similar improvements in RSAdecrement (p < 0.05). Only the repeated-sprint training group improved in the Yo-Yo IR1 (p < 0.05). This study clearly shows that high intensity small-sided games training can be used as an effective training mode to enhance both repeated sprint ability and short-passing ability. PMID- 29339991 TI - Multivariate Profiles of Selected versus Non-Selected Elite Youth Brazilian Soccer Players. AB - This study determined whether a multivariate profile more effectively discriminated selected than non-selected elite youth Brazilian soccer players. This examination was carried out on 66 youth soccer players (selected, n = 28, mean age 16.3 +/- 0.1; non-selected, n = 38, mean age 16.7 +/- 0.4) using objective instruments. Multivariate profiles were assessed through anthropometric characteristics, biological maturation, tactical-technical skills, and motor performance. The Student's t-test identified that selected players exhibited significantly higher values for height (t = 2.331, p = 0.02), lean body mass (t = 2.441, p = 0.01), and maturity offset (t = 4.559, p < 0.001), as well as performed better in declarative tactical knowledge (t = 10.484, p < 0.001), shooting (t = 2.188, p = 0.03), dribbling (t = 5.914, p < 0.001), speed - 30 m (t = 8.304, p < 0.001), countermovement jump (t = 2.718, p = 0.008), and peak power tests (t = 2.454, p = 0.01). Forward stepwise discriminant function analysis showed that declarative tactical knowledge, running speed -30 m, maturity offset, dribbling, height, and peak power correctly classified 97% of the selected players. These findings may have implications for a highly efficient selection process with objective measures of youth players in soccer clubs. PMID- 29339992 TI - Effects of Passive and Active Rest on Physiological Responses and Time Motion Characteristics in Different Small Sided Soccer Games. AB - The purpose of this study was to investigate the effects of resting regimes on physiological responses and time motion characteristics between bouts during small sided games (SSGs) in young soccer players. Sixteen players (average age 16.87 +/- 0.34 years; body height 176.69 +/- 3.21 cm; body mass 62.40 +/- 2.59 kg; training experience 3.75 +/- 0.44 years) performed four bouts 2-a-side, 3-a side and 4-a-side games with three minutes active (SSGar: Running at 70% of HRmax) and passive (SSGpr) rest between bouts at two-day intervals. The heart rate (HR) along with total distance covered in different speed zones - walking (W, 0-6.9 km.h-1), low-intensity running (LIR, 7.0-12.9 km.h-1), moderate intensity running (MIR, 13.0-17.9 km.h-1) and high-intensity running (HIR, >18km.h-1), were monitored during all SSGs, whereas the rating of perceived exertion (RPE, CR-20) and venous blood lactate (La-) were determined at the end of the last bout of each SSG. The results demonstrated that all SSGpr elicited significantly higher physiological responses compared to SSGar in terms of the RPE and La- (p < 0.05). In addition, 2-a-side SSGpr induced significantly lower %HRmax responses and total distance covered than 2-a-side SSGar (p < 0.05). Moreover, the distance covered at HIR was significantly higher in 4-a-side SSGar than 4-side SSGpr. The results of this study indicate that both SSGs with passive and active rest can be used for soccer specific aerobic endurance training. Furthermore, all SSGs with active recovery should be performed in order to increase players and teams' performance capacity for subsequent bouts. PMID- 29339993 TI - Functional and Muscle-Size Effects of Flywheel Resistance Training with Eccentric Overload in Professional Handball Players. AB - The aim of the study was to analyse the effects of 6 week (15 sessions) flywheel resistance training with eccentric-overload (FRTEO) on different functional and anatomical variables in professional handball players. Twenty-nine athletes were recruited and randomly divided into two groups. The experimental group (EXP, n = 15) carried out 15 sessions of FRTEO in the leg-press exercise, with 4 sets of 7 repetitions at a maximum-concentric effort. The control group (CON, n = 14) performed the same number of training sessions including 4 sets of 7 maximum repetitions (7RM) using a weight-stack leg-press machine. The results which were measured included maximal dynamic strength (1RM), muscle power at different submaximal loads (PO), vertical jump height (CMJ and SJ), 20 m sprint time (20 m), T-test time (T-test), and Vastus-Lateralis muscle (VL) thickness. The results of the EXP group showed a substantially better improvement (p < 0.05-0.001) in PO, CMJ, 20 m, T-test and VL, compared to the CON group. Moreover, athletes from the EXP group showed significant improvements concerning all the variables measured: 1RM (ES = 0.72), PO (ES = 0.42 - 0.83), CMJ (ES = 0.61), SJ (ES = 0.54), 20 m (ES = 1.45), T-test (ES = 1.44), and VL (ES = 0.63 - 1.64). Since handball requires repeated short, explosive effort such as accelerations and decelerations during sprints with changes of direction, these results suggest that FRTEO affects functional and anatomical changes in a way which improves performance in well-trained professional handball players. PMID- 29339994 TI - The Second to Fourth Digit Ratio in Elite and Non-Elite Greco-Roman Wrestlers. AB - A low second-to-fourth digit ratio (2D:4D) has been reported to correlate with high performance and athletic potential of an individual in sport. It has been suggested that 2D:4D is a relatively weak predictor of strength and a stronger predictor of efficiency in aerobic exercise. Comparing extreme groups on a continuum of sports performance requiring high power (physical strength) output would be helpful to resolve this issue. Therefore, the purpose of the present study was to compare the 2D:4D ratio of world-class elite Greco-Roman wrestlers (n = 10) taking part in Olympic fitness camps in 2013 with the 2D:4D ratio of non elite collegiate wrestlers (n = 20), and age-matched sedentary males (n = 40). The 2D:4D ratios of elite wrestlers were lower compared to non-elite athletes (p < 0.01, right hand d = 1.70, left hand d = 1.67) and the control group (p < 0.0001, right hand d = 3.16, left hand d = 2.00). No significant differences were noted among the groups for right - left 2D:4D. We concluded that 2D:4D may discriminate between non-elite and world-class wrestlers. We also suggest that a low 2D:4D ratio could be linked to performance potential in wrestlers. As such, 2D:4D may provide additional information, which is valuable in determining the potential athleticism of an individual, when it is used in conjunction with other measures. PMID- 29339995 TI - Physical Performance and Anthropometric Characteristics of Male South African University Soccer Players. AB - Soccer is the most popular sport worldwide. Despite its global acclaim, scientific studies of soccer have tended to focus on tactics and techniques, thereby neglecting the physical and physiological profile of the players. Therefore, the purpose of this study was to examine physical and anthropometric characteristics of male South African university soccer players. Twenty-seven male soccer players aged 19 to 24 (mean age: 22.1 years; s = 1.5 years) volunteered to participate in the study. The results showed that goalkeepers (77.5 +/- 9.7 kg) and defenders (68.2 +/- 6.5 kg) were the heaviest compared to players in other playing positions. The goalkeepers also had the highest percentage of body fat (11.3 +/- 2.3%), in contrast to midfielders who had the lowest body fat content (9.1 +/- 0.9%). With regard to flexibility, defenders (45.1 +/- 4.9 cm) and midfielders (45.9 +/- 5.4 cm) performed better than goalkeepers (37.1 +/- 4.3 cm) and strikers (40.1 +/- 3.4 cm). Midfielders (57.2 +/- 3.1 ml1.kg-1.min1) and defenders (56.1 +/- 5.1 ml1.kg-1.min1) had significantly higher values of maximal oxygen uptake (VO2max) than goalkeepers (47.9 +/- 0.2 ml-1.kg-1.min-1) and strikers (49.8 +/- 6.2 ml-1.kg-1.min-1). No significant (p > 0.05) differences were observed for all other variables, with the exception of body height, body mass, and VO2max. It was therefore concluded that sports scientists and coaches should tailor conditioning programmes in soccer according to players' positions in view of the implications for successful performance. PMID- 29339996 TI - Judging in Rhythmic Gymnastics at Different Levels of Performance. AB - This study aimed to analyse the quality of difficulty judging in rhythmic gymnastics, at different levels of performance. The sample consisted of 1152 difficulty scores concerning 288 individual routines, performed in the World Championships in 2013. The data were analysed using the mean absolute judge deviation from the final difficulty score, a Cronbach's alpha coefficient and intra-class correlations, for consistency and reliability assessment. For validity assessment, mean deviations of judges' difficulty scores, the Kendall's coefficient of concordance W and ANOVA eta-squared values were calculated. Overall, the results in terms of consistency (Cronbach's alpha mostly above 0.90) and reliability (intra-class correlations for single and average measures above 0.70 and 0.90, respectively) were satisfactory, in the first and third parts of the ranking on all apparatus. The medium level gymnasts, those in the second part of the ranking, had inferior reliability indices and highest score dispersion. In this part, the minimum of corrected item-total correlation of individual judges was 0.55, with most values well below, and the matrix for between-judge correlations identified remarkable inferior correlations. These findings suggest that the quality of difficulty judging in rhythmic gymnastics may be compromised at certain levels of performance. In future, special attention should be paid to the judging analysis of the medium level gymnasts, as well as the Code of Points applicability at this level. PMID- 29339997 TI - The Relative Age Effect on Soccer Players in Formative Stages with Different Sport Expertise Levels. AB - The Relative Age Effect (RAE) in sport has been targeted by many research studies. The objective of this study was to analyze, in amateur clubs, the RAE of soccer players, according to the sport expertise level of the team (e.g., A, B, C and subsequent) that they belong to within the same game category. 1,098 soccer players in formative stages took part in the study, with ages varying between 6 and 18 years old (U8 to U19 categories). All of them were members of 4 Spanish federated clubs. The birth dates were classified into 4 quartiles (Q1 = Jan-Mar; Q2 = Apr-Jun; Q3 = Jul-Sept; Q4 = Oct-Dec)according to the team they belonged to. The results obtained in the chi-squared test and d value (effect size) revealed the existence of RAE in the teams with the highest expertise level, "A" (X2 = 15.342, p = .002, d = 0.4473) and "B" (X2 = 10.905, p = .012, d = 0.3657). However, in the lower level teams, "C and subsequent", this effect was not observed. Present findings show that players born during the first months of the year tend to be selected to play in teams with a higher sport expertise level of each category, due to their physical maturity. Consequently, this causes differences in terms of the experience they accumulate and the motivation that this creates in these players. PMID- 29339998 TI - Planning Training Loads for the 400 M Hurdles in Three-Month Mesocycles using Artificial Neural Networks. AB - This paper presents a novel approach to planning training loads in hurdling using artificial neural networks. The neural models performed the task of generating loads for athletes' training for the 400 meters hurdles. All the models were calculated based on the training data of 21 Polish National Team hurdlers, aged 22.25 +/- 1.96, competing between 1989 and 2012. The analysis included 144 training plans that represented different stages in the annual training cycle. The main contribution of this paper is to develop neural models for planning training loads for the entire career of a typical hurdler. In the models, 29 variables were used, where four characterized the runner and 25 described the training process. Two artificial neural networks were used: a multi-layer perceptron and a network with radial basis functions. To assess the quality of the models, the leave-one-out cross-validation method was used in which the Normalized Root Mean Squared Error was calculated. The analysis shows that the method generating the smallest error was the radial basis function network with nine neurons in the hidden layer. Most of the calculated training loads demonstrated a non-linear relationship across the entire competitive period. The resulting model can be used as a tool to assist a coach in planning training loads during a selected training period. PMID- 29339999 TI - Reliability and Usefulness of the 30-15 Intermittent Fitness Test in Male and Female Professional Futsal Players. AB - The purpose of this study was to determine the reliability and usefulness of the 30-15 Intermittent Fitness Test (30-15IFT) in professional male and female futsal players. Thirteen male (24.4 +/- 5.6 years; 174.5 +/- 10.3 cm; 70.3 +/- 9.9 kg) and fourteen female (23.3 +/- 4.5 years; 165.8 +/- 6.2 cm; 61.7 +/- 5.5 kg) professional futsal players performed the 30-15IFT on two occasions, separated by 5 days. Maximal intermittent running velocity (VIFT) and heart rate at exhaustion (HRpeak) data were collected for both tests. Reliability was assessed by the intraclass correlation coefficient (ICC), typical error (TE) expressed as a coefficient of variation (CV), and smallest worthwhile change (SWC). VIFT demonstrated very good reliability between sessions, both for male (ICC = 0.92) and female (ICC = 0.96) players. As the TE for VIFT and HRpeak was similar to the calculated SWC for both male and female players, the usefulness of the test was rated as "medium". A change in performance of at least 2 stages in male players, or a change of more than 1 stage in female players could be interpreted as a meaningful change in aerobic futsal fitness. The results of this study demonstrate that the 30-15IFT is both a reliable and useful test for male and female professional futsal players. PMID- 29340000 TI - Sprinting, Change of Direction Ability and Horizontal Jump Performance in Youth Runners According to Gender. AB - The purpose of the study was to assess straight sprinting, change of direction ability and horizontal jump performance in youth runners according to age and gender. Two hundred and fifty-five youth runners (116 boys and 139 girls) participated in this study. The athletes were divided according to their age into five groups: under 8 yr (U8), under 10 yr (U10), under 12 yr (U12), under 14 yr (U14) and under 16 yr (U16). Significant differences (p < 0.01) were found between U8 and U10 in the 5 m sprint (d = 1.22), 505 agility test (505, d = 0.96), modified agility test (MAT, d = 1.43), horizontal countermovement jump (HCMJ, d = 1.06) and arm swing HCMJ (HCMJAS, d = 1.44); between U10 and U12 in the 505 (d = 0.39), MAT (d = 0.74), HCMJ (d = 0.96) and HCMJAS (d = 0.75); and between U12 and U14 in 5 m (d = 0.84), HCMJ (d = 0.88) and HCMJAS (d = 0.79). However, no significant differences (p > 0.05, d = 0.29-1.17) between U14 and U16 were observed in any of the tests. With regard to age and gender, in U8 and U10 groups there were no significant differences (p > 0.05, d = 0.02-0.76) between boys and girls in any test. However, in U12 and U14 groups, significant gender differences (p < 0.05, d = 0.85-1.24) were found in the MAT. Likewise, the boys obtained better results than girls in the horizontal jump tests (p < 0.05, d = 1.01-1.26). After the classification by age, some differences were observed between both genders, depending on the fitness variable evaluated. PMID- 29340001 TI - Neuromuscular Control During the Bench Press Movement in an Elite Disabled and Able-Bodied Athlete. AB - The disabled population varies significantly in regard to physical fitness, what is conditioned by the damage to the locomotor system. Recently there has been an increased emphasis on the role of competitive sport in enhancing health and the quality of life of individuals with disability. One of the sport disciplines of Paralympics is the flat bench press. The bench press is one of the most popular resistance exercises used for the upper body in healthy individuals. It is used not only by powerlifters, but also by athletes in most strength-speed oriented sport disciplines. The objective of the study was to compare neuromuscular control for various external loads (from 60 to 100% 1RM) during the flat bench press performed by an elite able-bodied athlete and an athlete with lower limb disability. The research project is a case study of two elite bench press athletes with similar sport results: an able-bodied athlete (M.W., age 34 years, body mass 103 kg, body height 1.72 m, 1RM in the flat bench press 200 kg) and a disabled athlete (M.T., age 31 years, body mass 92 kg, body height 1.70 m, 1RM in the flat bench press 190 kg). The activity was recorded for four muscles: pectoralis major (PM), anterior deltoid (AD), as well as for the lateral and long heads of the triceps brachii (TBlat and TBlong). The T-test revealed statistically significant differences between peak activity of all the considered muscles (AD with p = 0.001; PM with p = 0.001; TBlat with p = 0.0021 and TBlong with p = 0.002) between the 2 athletes. The analysis of peak activity differences of M.W and M.T. in relation to the load revealed statistically significant differences for load changes between: 60 to 100% 1RM (p = 0.007), 70 to 100% 1RM (p = 0.016) and 80 to 100% 1RM (p = 0.032). The flat bench press performed without legs resting firmly on the ground leads to the increased engagement of upper body muscles and to their greater activation. Isolated initial positions can be used to generate greater engagement of muscle groups during the bench press exercise and evoke their higher activation. PMID- 29340002 TI - Performance Changes of Elite Paralympic Judo Athletes During a Paralympic Games Cycle: A Case Study with the Brazilian National Team. AB - The aim of this study was to describe the variations in power performance of elite Paralympic judo athletes across three consecutive training cycles of preparation for the ParaPan American Games, the World Championship and the Paralympic Games. Eleven Paralympic judokas from the Brazilian National team participated in this study. They were repeatedly assessed using squat and countermovement jumps, mean propulsive power (MPP) in the jump-squat (JS), the bench press and prone bench pull at several moments of the preparation. Training supervision based on the optimum power zone (range of loads where power production is maximized) was provided in the final cycle, prior to the Paralympic Games. Magnitude-based inference was used to compare the repeated measurements of power performance. Lower and upper limb muscle power gradually increased throughout the cycles; however, the best results in all exercises were observed prior to the Paralympic Games, during which the team won four silver medals. As an illustration, prior to participation in the Paralympic Games the MPP in the JS was likely to very likely higher than prior to the World Championship (effect size [ES] = 0.77) and ParaPan American Games (ES = 0.53), and in January and March 2016 (ES = 0.98 and 0.92, respectively; months preceding the Paralympic Games). Power performance assessments can provide information about the evolution of Paralympic judokas, and training at the optimum power zone seems to constitute an effective method to improve lower and upper limb power in these athletes. PMID- 29340003 TI - Sports Activity Following Cementless Metaphyseal Hip Joint Arthroplasty. AB - An adequate level of physical activity has a substantial effect on both mental and physical human health. Physical activity is largely dependent on the function of the musculoskeletal and articular system. One of the most frequent diseases of this system is degenerative joint disease. Due to the changing and more demanding lifestyles and patients' willingness to be involved in sports activity, the expectations of hip joint arthroplasty are becoming increasingly high. Alleviating pain ceases to be the only reason for which patients choose surgical interventions, while the expectations often include involvement in various sports. Only few studies contain recommendations concerning the frequency, type and intensity of sports activity which are acceptable after hip joint arthroplasty. The aim of the study was to evaluate function and physical activity of people following cementless short-stem hip joint arthroplasty in the observation of at least five years. The study group comprised 106 patients who underwent total hip arthroplasty due to degenerative joint diseases, chosen according to inclusion criteria. Patients underwent routine physical examinations following the Harris Hip Score protocol, responded to the UCLA scale and questionnaires concerning pre-surgical and current physical activity. Our results demonstrated that hip joint arthroplasty in people suffering from degenerative joint diseases has a beneficial effect on their level of functioning and physical activity. Although physical activity and the level of functioning obviously reduced as a person aged, the level of physical activity continued to be very high in both groups, with function of the hip joint evaluated as very good. PMID- 29340004 TI - Performance and Kinematic Differences in Putting between Healthy and Disabled Elite Golfers. AB - Golfers with disability are limited in the execution of the full golf swing, but their performance in putting may be comparable because this stroke does not demand significant strength, balance and range of motion. Therefore, the aim of this study was to compare putting performance, kinetic and kinematic consistency between golfers with different disabilities and healthy athletes. The participants consisted of three disabled athletes (perinatal cerebral palsy, multiple sclerosis, below knee lower limb amputee) and three healthy golfers (age 34 +/- 4.5 years, body height 178 +/- 3.3 cm, body mass 83 +/- 6.2 kg). The golfers' movements were recorded by active 3D markers for kinematic analyses; the subjects performed 10 trials of a 6 m putting task while standing on separate force platforms placed under each lower limb. Putting performance was measured by the distance of the final ball position to the centre of the hole. ANOVA analyses did not show any differences in clubhead speed and total ball distance from the hole. The consistency of those two parameters expressed by the coefficient of variation (CV) was CV = 0.5% or better in both groups for clubhead speed and ranged from CV = 0.40 to 0.61% in healthy and CV = 0.21 to 0.55% in disabled athletes for total error distance. The main effect ANOVA showed differences in weight shift, hip and shoulder kinematics (p < 0.05) between healthy players and all players with disability. All disabled athletes shifted their weight toward the healthy side (towards the healthy lower limb) and alternated the end of the swing. The player with below knee amputation had the lowest range of motion in the shoulder joint during the putting stroke. The players with perinatal cerebral palsy and multiple sclerosis had the largest range of motion in the hips. Putting performance of disabled golfers was similar to healthy athletes. During training of disabled players, coaches should pay attention to the specificity of a particular disability when focused on putting performance. However, individual technique should achieve the same consistency as observed in healthy players. PMID- 29340005 TI - Comparison of Aerobic Performance Testing Protocols in Elite Male Wheelchair Basketball Players. AB - In wheelchair sports, aerobic performance is commonly assessed with the use of an arm crank ergometer (ACE), a wheelchair ergometer (WCE) or a wheelchair treadmill (WCT). There are different protocols to identify peak oxygen uptake in wheelchair sports; however, only a few protocols have been applied to evaluate these conditions in wheelchair basketball players. The purpose of this study was to compare physiological responses during maximal exercise testing with the use of ACE and WCT in wheelchair basketball players. Twelve elite male wheelchair basketball players participated in this study. The research was performed during a training camp of the Polish National Wheelchair Basketball Team. The study participants were divided into two functional categories: A (players with class 1.0 - 2.5) and B (players with class 3.0 - 4.5). Two main maximal exercise tests, i.e. wheelchair treadmill stress test (WCT test) and arm crank ergometer stress test (ACE test) were used to evaluate aerobic performance of the players. There were no statistically significant differences in aerobic tests between the players from both groups. The comparison of results achieved in two aerobic tests performed on WCT and ACE did not reveal any significant differences between the analyzed variables (peak heart rate (HRpeak), peak oxygen uptake (VO2peak), minute ventilation (VE), anaerobic threshold (AT), lactate concentration (LApeak), and a drop in lactate concentration (%LA)). Strong correlations between results achieved in WCT and ACE tests were found for VO2peak, VE and LApeak. The main conclusion of the study is that both WCT and ACE tests may be useful when determining aerobic capacity of wheelchair basketball players. Moreover, both protocols can be used by athletes regardless of their functional capabilities and types of impairment. PMID- 29340006 TI - The Impact of the Progressive Efficiency Test on a Rowing Ergometer on White Blood Cells Distribution and Clinical Chemistry Changes in Paralympic Rowers During the Preparatory Stage Before the Paralympic Games in Rio, 2016 - A Case Report. AB - There is a large gap in knowledge regarding research on post-exercise blood changes in disabled athletes. There are relatively few data on adaptive mechanisms to exercise in disabled athletes, including disabled rowers. Two rowers from a Polish adaptive rowing settle TAMix2x that qualified for the Paralympic Games in Rio, 2016 took part in this study. They performed a progressive test on a rowing ergometer until exhaustion. The cardiorespiratory fitness measures, complete blood count, white blood cells' distribution and 30 clinical chemistry variables describing laboratory diagnostic profiles and general health were determined. The extreme effort induced changes in all studied metabolites (glucose, creatinine, urea, uric acid, total and direct bilirubin), albumin, total protein levels in both participants. Furthermore, a post-exercise increase in aspartate transaminase activity, yet a 2-fold decrease during the recovery time in both rowers were found. White blood cell count increased 2-fold after the test. The percentages of natural killer cells were higher and total T lymphocytes were lower after the exercise protocol. There were higher percentages of suppressor/cytotoxic and lower percentages of helper/inducer T lymphocyte subsets in both studied rowers. No changes in B lymphocytes distribution were observed. Lack of inflammatory symptoms during the experiment suggests a high level of rowers' biological adaptation to the physical effort. The different changes in physiological, biochemical and immunological variables are related to the adaptive mechanism to physical exercise allowing for improvement of performance. PMID- 29340008 TI - Chemotherapy-induced metastasis in breast cancer. PMID- 29340007 TI - Genomic insights into Mycobacterium simiae human colonization. AB - Mycobacterium simiae (Karassova V, Weissfeiler J, Kraszanay E, Acta Microbiol Acad Sci Hung 12:275-82, 1965) is a slow-growing nontuberculous Mycobacterium species found in environmental niches, and recently evidenced as an opportunistic Human pathogen. We report here the genome of a clinical isolate of M. simiae (MsiGto) obtained from a patient in Guanajuato, Mexico. With a size of 6,684,413 bp, the genomic sequence of strain MsiGto is the largest of the three M. simiae genomes reported to date. Gene prediction revealed 6409 CDSs in total, including 6354 protein-coding genes and 52 RNA genes. Comparative genomic analysis identified shared features between strain MsiGto and the other two reported M. simiae genomes, as well as unique genes. Our data reveals that M. simiae MsiGto harbors virulence-related genes, such as arcD, ESAT-6, and those belonging to the antigen 85 complex and mce clusters, which may explain its successful transition to the human host. We expect the genome information of strain MsiGto will provide a better understanding of infective mechanisms and virulence of this emergent pathogen. PMID- 29340009 TI - What is changing in the adjuvant treatment of melanoma? PMID- 29340010 TI - Elongation vs stalling: place your BET. PMID- 29340011 TI - Capecitabine for primary breast cancer. PMID- 29340012 TI - Biomarkers in colorectal cancer screening. PMID- 29340013 TI - The small molecule SI113 synergizes with mitotic spindle poisons in arresting the growth of human glioblastoma multiforme. AB - Glioblastoma multiforme (GBM) is the deadliest brain tumor. State-of-art GBM therapy often fails to ensure control of a disease characterized by high frequency of recurrences and progression. In search for novel therapeutic approaches, we assayed the effect of compounds from a cancer drug library on the ADF GBM cell line, establishing their elevated sensitivity to mitotic spindle poisons. Our previous work showed that the effectiveness of the spindle poison paclitaxel in inhibiting cancer cell growth was dependent on the expression of RANBP1, a regulatory target of the serine/threonine kinase SGK1. Recently, we developed the small molecule SI113 to inhibit SGK1 activity. Therefore, we explored the outcome of the association between SI113 and selected spindle poisons, finding that these drugs generated a synergistic cytotoxic effect in GBM cells, drastically reducing their viability and clonogenic capabilities in vitro, as well as inhibiting tumor growth in vivo. We also defined the molecular bases of such a synergistic effect. Because SI113 displays low systemic toxicity, yet strong activity in potentiating the effect of radiotherapy in GBM cells, we believe that this drug could be a strong candidate for clinical trials, with the aim to add it to the current GBM therapeutic approaches. PMID- 29340014 TI - Cymbopogon citratus and Camellia sinensis extracts selectively induce apoptosis in cancer cells and reduce growth of lymphoma xenografts in vivo. AB - Cancer cells are reported to have elevated levels of reactive oxygen species (ROS) and are highly dependent on cellular defense mechanisms against oxidative stress. Numerous nutraceuticals and natural polyphenolic compounds have a wide range of abilities to alter cellular redox states with potential implications in various diseases. Furthermore, therapeutic options for cancers are mostly nonselective treatments including genotoxic or tubulin-targeting compounds. Some of the natural extracts, containing multiple bioactive compounds, could target multiple pathways in cancer cells to selectively induce cell death. Cymbopogon citratus (lemongrass) and Camellia sinensis (white tea) extracts have been shown to have medicinal properties, however, their activity against lymphoma and leukemia, as well as mechanistic details, have not been fully characterized. Herein, we report potent anti-cancer properties in dose and time-dependent manners of ethanolic lemongrass and hot water white tea extracts in lymphoma and leukemia models. Both extracts were able to effectively induce apoptosis selectively in these human cancer cell types. Interestingly, ethanolic lemongrass extract induces apoptosis primarily by the extrinsic pathway and was found to be dependent on the generation of ROS. Conversely, apoptotic induction by hot water white tea extract was independent of ROS. Furthermore, both of these extracts caused mitochondrial depolarization and decreased rates of oxygen consumption in lymphoma and leukemia cells, leading to cell death. Most importantly, both these extracts were effective in reducing tumor growth in human lymphoma xenograft models when administered orally. Thus, these natural extracts could have potential for being nontoxic alternatives for the treatment of cancer. PMID- 29340015 TI - Apatinib alone or combined with radiotherapy in metastatic prostate cancer: Results from a pilot, multicenter study. AB - Background: To study safety and efficacy of apatinib in combination of radiotherapy in patients with symptomatic bony disease prostate cancer(SBPC), based on the potential synergistic antitumor activity between apatinib and Radiation Therapy (RT). Patients and methods: In phase I dose escalation part, 18 patients received apatinib dose at 250 mg every other day, 250 mg daily and 500 mg daily. In phase II part, the 250 mg daily cohorts were expanded to 20 patients in combination of RT (6 Gy/fraction, 5 fraction in total), one patient lost followed up and excluded the study, comparing with RT alone cohort with 10 patients, ratio of RT to RT + apatinib was 1 to 2. Evaluations included adverse events (AEs), prostate specific antigen (PSA) changes, radiographic evaluation and pain relief. Results: In phase I study, common apatinib-related AEs (arAEs) were fatigue, anorexia, hand foot syndrome, proteinuria, and hypertension (HTN). Grade 3arAEs included HTN, proteinuria, liver dysfunction. In phase II study, combination apatinib with RT cohorts, AEs events increased comparing with either apatinib alone or RT alone; at the same time, combination cohorts showed PSA declines of >=50% in 12 patients, and stable disease in 6 patients. Combination cohorts had pain control significantly improved in both level and duration comparing with RT alone. Conclusions: In SBPC patients, apatinib at less than 500 mg daily dose as mono-therapy had tolerable toxicity. Apatinib at dose of 250 mg daily in combining with RT synergized pain control, the overall AEs were manageable. Further studies are needed in large sample size future trials. PMID- 29340016 TI - MiR-19 regulates the proliferation and invasion of glioma by RUNX3 via beta catenin/Tcf-4 signaling. AB - Accumulating data demonstrates that the network dysregulation of microRNA medicated target genes is involved in glioma. We have previously found miR-19a/b overexpression in glioma cell lines and specimens with various tumour grades. However, there was no report on the function and regulatory mechanism of miR 19a/b in glioma. In this study, based on our previous research data, we first determine the inverse relationship between miR-19 (miR-19a and miR-19b) and RUNX3 which is also identified the reduced expression in tumour tissues by real-time PCR and IHC. Luciferase reporter assay and western blot analysis revealed that RUNX3 was a direct target of miR-19. Down-regulation of miR-19 dramatically inhibited proliferation, invasion and induced the cell cycle G1 arrest and apoptosis, at least partly via the up-regulation of RUNX3. Furthermore, Mechanistic investigation indicated that knockdown of miR-19 repressed the beta catenin/TCF4 transcription activity. In conclusion, our study validates a pathogenetic role of miR-19 in glioma and establishes a potentially regulatory and signaling involving miR-19 /RUNX3/beta-catenin, also suggesting miR-19 may be a candidate therapeutic target in glioma. PMID- 29340017 TI - Altered GNAS imprinting due to folic acid deficiency contributes to poor embryo development and may lead to neural tube defects. AB - Disturbed epigenetic modifications have been linked to the pathogenesis of Neural Tube Defects (NTDs) in those with folate deficiency during pregnancy. However, evidence is lacking to delineate the critical region in epigenome regulated by parental folic acid and mechanisms by which folate deficiency affects normal embryogenesis. Our data from clinical samples revealed the presence of aberrant DNA methylation in GNAS imprinting cluster in NTD samples with low folate concentrations. Results from mouse models indicated that the establishment of GNAS imprinting was influenced by both maternal and paternal folate-deficient diets. Such aberrant GNAS imprinting was present prior to the gametogenesis period. Imprinting in Exon1A/GNAS gDMR was abolished in both spermatozoa and oocytes upon treating with a parental folate-deficient diet (3.6% in spermatozoa, 9.8% in oocytes). Interestingly, loss of imprinting in the GNAS gene cluster altered chromatin structure to an overwhelmingly open structure (58.48% in the folate-free medium group vs. 39.51% in the folate-normal medium group; P < 0.05), and led to a disturbed expression of genes in this region. Furthermore, an elevated cyclic AMP levels was observed in folate acid deficiency group. Our results imply that GNAS imprinting plays major roles in folic acid metabolism regulation during embryogenesis. Aberrant GNAS imprinting is an attribute to NTDs, providing a new perspective for explaining the molecular mechanisms by which folate supplementation in human pregnancy provides protection from NTDs. PMID- 29340018 TI - Survival prediction of kidney renal papillary cell carcinoma by comprehensive LncRNA characterization. AB - Kidney renal papillary cell carcinoma (KIRP) accounts for 10%-15% of renal cell carcinoma (RCC), patients with KIRP tend to have a poor prognosis, and there was a lack of effective prognostic indicators for this type of cancer. Currently, owing to the availability of The Cancer Genome Atlas (TCGA), long non-coding RNAs (LncRNAs) have been discovered to indicate a prognostic value in some tumors. In that regard, we analyzed lncRNA-sequencing data of KIRP in TCGA, and among 780 differentially-expressed lncRNAs, we selected 37 lncRNAs which were able to assist the prognosis. In addition, by using the multivariate cox regression analysis, the prognosis index (PI) that consisted of 7 lncRNAs (including AFAP1 AS1, GAS6-AS1, RP11-1C8.7, RP11-21L19.1, RP11-503C24.1, RP11-536I6.2, and RP11 63A11.1) could predict the progression and outcomes of KIRP with accuracy. More importantly, the PI was considered an independent indicator for prognostication of KIRP. Moreover, having categorized patients with KIRP into cohorts of high risk and low risk, according to the PI, we found that the key genes and pathways varied in these two groups. Overall, these LncRNAs, especially the PI, may be conceived as biomarkers and helpful for determining the different pathological stages for KIRP patients. However, their biological functions need to be further confirmed. PMID- 29340019 TI - Yonsei criteria: a clinical reflection of stage I left-sided pancreatic cancer. AB - In this study, we examined associations between pancreatic cancer that met the Yonsei criteria (YC) and classifications from the 8th edition of the American Joint Committee on Cancer (AJCC) staging system. Clinicopathological and survival data were collected from132 patients who underwent distal pancreatectomy for left sided pancreatic ductal adenocarcinoma between January 2000 and December 2015, and the utility of the YC for selecting treatment and predicting survival was evaluated using the 8th AJCC staging manual. Of the 102 patients who ultimately qualified for the study, 45 patients were reclassified as stage I based on the 8th AJCC cancer staging system. Disease-free survival and disease-specific survival periods were longer in stage I patients who met the YC than in those who did not. Clinicopathological characteristics did not differ between stage I patients who did and did not meet the YC. These results suggest that meeting the YC criteria may be a clinical indicator that left-sided pancreatic cancer patients who are candidates for resection have early-stage disease according to the 8th edition of the AJCC staging manual. PMID- 29340020 TI - EYA2 promotes lung cancer cell proliferation by downregulating the expression of PTEN. AB - Lung cancer is the leading cause of cancer-related death worldwide. Despite advances have been made in diagnosis and therapeutic strategies, the prognosis of lung cancer is still very poor. Eyes absent transcriptional cofactor EYA2 has been shown to promote lung cancer cell growth, however, the underlying molecular mechanism is still not fully understood. In the present study, we found that EYA2 was up-regulated in lung cancer, and EYA2 led to increased cell proliferation by inhibiting Phosphatase and tensin homologue (PTEN) expression via modulation of miR-93. Additionally, survival analysis showed that lung cancer patients with higher EYA2 expression predicted a worse prognosis. Therefore, these findings demonstrate that EYA2 may play an important role in lung cancer occurrence and progression. Targeting EYA2 may provide a feasible approach in developing novel anticancer therapeutics. PMID- 29340022 TI - A functional polymorphism of SSBP1 gene predicts prognosis and response to chemotherapy in resected gastric cancer patients. AB - Growing evidence has indicated that single-stranded DNA-binding proteins 1 (SSBP1) is involved in tumor initiation and progression. However, effects of single nucleotide polymorphisms (SNPs) in SSBP1 gene on gastric cancer (GC) prognosis are still unknown. In present study, two functional SNPs from SSBP1 were selected and genotyped in a large cohorts of 1030 resected GC patients (326 in the training set, 704 in the validation set) to explore the association of SNPs with patients' survival. The rs6976500 G allele (CG/GG) genotypes were found significantly associated with both worse overall survival (OS) and recurrence free survival (RFS) in the training and the independent validation set when compared to C allele genotype, which reaching a more robust statistical significance in the pooled analysis. Furthermore, integration of rs6976500 genotypes and TNM stage significantly improved the prognosis prediction models based on TNM stage alone. In addition, only carriers with at least one G allele of rs6976500 gained significant survival benefit from FOLFOX-based ACT. Mechanistically, SNP rs6976500 G allele genotype could significantly decrease promoter transcriptional activity and markedly reduce expression level of SSBP1 compared with the C allele genotype in GC cells. This was further substantiated by immunohistochemical assay in 70 GC tissue samples. Our study presents the first evidence that SNP rs6976500 G allele genotypes might contribute to GC prognosis by attenuating SSBP1 promoter activity and gene expression, and provides the guidance in refining therapeutic decisions of GC patients. Further exploration on its function is needed to clarify the exact biological mechanism behind. PMID- 29340023 TI - Role and regulation of Yap in KrasG12D-induced lung cancer. AB - The Hippo pathway and its downstream transcriptional co-activator Yap influence lung cancer, but the nature of the Yap contribution has been unclear. Using a genetically engineered mouse lung cancer model, we show that Yap deletion completely blocks KrasG12D and p53 loss-driven adenocarcinoma initiation and progression, whereas heterozygosity for Yap partially suppresses lung cancer growth and progression. We also characterize Yap expression during tumor progression and find that nuclear Yap can be detected from the earliest stages of lung carcinogenesis, but at levels comparable to that in aveolar type II cells, which are a cell of origin for lung adenocarcinoma. At later stages of tumorigenesis, variations in Yap levels are detected, which correlate with differences in cell proliferation within tumors. Our observations imply that Yap is not directly activated by oncogenic Kras during lung tumorigenesis, but is nonetheless absolutely required for this tumorigenesis, and support Yap as a therapeutic target in lung adenocarcinoma. PMID- 29340021 TI - A novel messenger RNA signature as a prognostic biomarker for predicting relapse in pancreatic ductal adenocarcinoma. AB - Pancreatic ductal adenocarcinoma (PDAC) death rate and recurrence rate have remained obstinately high. Current methods can not satisfy the need of predicting cancer relapse accurately. Utilizing expression profiles of 10 GEO datasets (N = 774), we identified 154 differentially expressed genes (DEGs) between PDAC and normal pancreas tissue or paracancerous tissue. Next we built a 16-mRNA-based signature by means of the LASSO COX regression model. We also validated the prognostic value of the signature. Patients were classified into high-risk and low-risk group according to the signature risk score; 1 year RFS was 45% (95% CI: 31.6%-63.9%) for high-risk group in contrast to 92.5% (95% CI: 86.3%-99.1%) for low-risk group. Moreover, it could predict RFS well in cases with the receipt of different treatment modalities. The 16-mRNA-based signature was an independent and powerful prognostic biomarker for RFS for PDAC patients (HR = 7.74, 95% CI: 3.25-18.45, p < 0.0001). PMID- 29340024 TI - Chitosan composite scaffold combined with bone marrow-derived mesenchymal stem cells for bone regeneration: in vitro and in vivo evaluation. AB - The study aimed to develop a chitosan (CS)-based scaffold for repairing calvarial bone defects. We fabricated composite scaffolds made of CS and bovine-derived xenograft (BDX), characterized their physicochemical properties including pore size and porosity, absorption, degradation, and compressive strength, compared their efficacy to support in vitro proliferation and differentiation of human jaw bone marrow-derived mesenchymal stem cells (hJBMMSCs), and evaluated their bone regeneration capacity in critical-size rat calvarial defects. The CS/BDX (mass ratio of 40:60) composite scaffold with porosity of 46.23% and pore size of 98.23 MUm exhibited significantly enhanced compressive strength than the CS scaffold (59.33 +/- 4.29 vs. 18.82 +/- 2.49 Kpa). The CS/BDX (40:60) scaffold induced better cell attachment and promoted more osteogenic differentiation of hJBMMSCs than the CS scaffold. The CS/BDX (40:60) scaffold seeded with hJBMMSCs was the most effective in supporting new bone formation, as evidenced by better histomorphometry results, larger new bone area, and more obvious mature lamellar bone formation compared to other groups in rat calvarial defects 8 weeks after implantation. These results suggest that CS/BDX composite scaffold combining with hJBMMSCs has the potential for bone defect regeneration. PMID- 29340025 TI - The novel ATM inhibitor (AZ31) enhances antitumor activity in patient derived xenografts that are resistant to irinotecan monotherapy. AB - Irinotecan, a standard of care therapy for CRC, elicits cytotoxic effects by generating double strand breaks resulting in DNA damage. The activation of the ATM pathway plays a fundamental role in regulating the cellular response and repair to DNA damage. The objective of this preclinical study was to determine whether ATM inhibition would enhance sensitivity to irinotecan treatment. Treatment effects of AZ31, irinotecan or AZ31 + irinotecan were investigated in CRC cell lines and CRC patient derived xenografts. Activation of ATM and downstream targets p-RAD50 and p-H2AX were evaluated by immunohistochemistry. Combinational effects were demonstrated in 4 out of 8 CRC explants. Interestingly, each of the combinational sensitive CRC PDX models were shown to be more resistant to irinotecan single agent therapy. Treatment with irinotecan significantly elevated the ATM pathway evident by an increase in the activation of H2AX and RAD50. Combinational therapy reduced the activation of H2AX and RAD50 when compared to irinotecan alone in the combination sensitive CRC098. AZ31 + irinotecan was effective at reducing tumor growth in tumors that exhibited resistance to irinotecan in our CRC PDX model. These findings support further investigation of this combinational therapy for the treatment of CRC patients. PMID- 29340026 TI - Evaluating the bias of circRNA predictions from total RNA-Seq data. AB - CircRNAs are a group of endogenous noncoding RNAs. The quickly developing high throughput RNA sequencing technologies along with novel bioinformatics approaches have enabled researchers to systematically identify circRNAs and their biological functions in cells. Deep sequencing of rRNA-depleted RNAs treated with RNase R, which digests linear RNAs and leaves circRNAs enriched, is an efficient way to identify circRNAs. However, very few of RNase R treated data are at hand but a large amount of total RNA-Seq data with no sequencing costs is available, for circRNA predictions. In this study, we systematically investigated the prediction bias from total RNA-Seq data as well as the influence of sequencing depth, sequencing quality and single-end or paired-end sequencing strategy on the predictions. We also identified circRNA properties that may contribute to the improved prediction performance. Our analysis shows that circRNA predictions from total RNA-Seq data gain ~50% true positive. Sequencing error dramatically worsens the predictions, rather than single-end sequencing strategy or low sequencing depth. However, false positive can be carefully controlled by using data with good quality and narrowing down circRNAs guided by their properties. PMID- 29340027 TI - Dual SIRT1 expression patterns strongly suggests its bivalent role in human breast cancer. AB - Breast cancer is the most common cancer in women, and the leading cause of cancer death in women worldwide. SIRT1 (silent mating type information regulation 2 homolog) 1 is a class-III histone deacetylase involved in apoptosis regulation, DNA repair and tumorigenesis. However, its role in breast carcinoma remains controversial, as both tumor-suppressive and tumor-promoting functions have been reported. Also, there are very few reports available where expression of SIRT1 is comprehensively analyzed in breast tumors classified by molecular subtype. Here, using a cohort of 50 human breast tumors and their matched normal tissues, we investigated SIRT1 expression levels in the 5 molecular subtypes of breast cancer according to the St Gallen classification (2013). Tumors and their corresponding normal tissue samples were collected from all patients, and SIRT1 mRNA and protein expression levels were then examined by real-time quantitative polymerase chain reaction and immunoblotting, respectively. After statistical analysis, the results showed a dual expression profile of SIRT1 in human breast carcinoma, with significant overexpression in luminal and HER2-enriched subtypes and significantly reduced expression in the triple-negative subtype. We also found an inverse correlation between SIRT1 expression and breast cancer aggressivity. These novel findings suggest that SIRT1 plays a dual role in breast tumors depending on its expression rate and the molecular subtype of the cancer. Our data also point to a potential role for SIRT1 as a prognostic biomarker in breast cancer. PMID- 29340029 TI - Selenium suppresses inflammation by inducing microRNA-146a in Staphylococcus aureus-infected mouse mastitis model. AB - We studied the effects of selenium (Se) on the inflammatory response in Staphylococcus aureus (S. aureus)-infected mastitis-model mice and mammary epithelial cells. In infected mice, Se elicited a dose-dependent decrease in mammary gland pathology that included inflammatory cell infiltration, disorganized acinar structure and mammary cell necrosis. Se decreased inflammation by increasing miR-146a and decreasing TLR2/6 as well as NF-kappaB and MAPK signaling pathways in mammary tissue from infected mice and mammary epithelial cells. A miR-146a inhibitor suppressed the anti-inflammatory effects of Se in infected mammary epithelial cells. Se, miR-146a and TLR2 were associated in determining the inflammatory response in mouse with infection-induced mastitis. Thus, Se inhibits pro-inflammatory responses in mammary tissues from S. aureus-infected mice by inducing miR-146a. PMID- 29340028 TI - High-resolution microbiome profiling uncovers Fusobacterium nucleatum, Lactobacillus gasseri/johnsonii, and Lactobacillus vaginalis associated to oral and oropharyngeal cancer in saliva from HPV positive and HPV negative patients treated with surgery and chemo-radiation. AB - Microbiome studies show altered microbiota in head and neck squamous cell carcinoma (HNSCC), both in terms of taxonomic composition and metabolic capacity. These studies utilized a traditional bioinformatics methodology, which allows for accurate taxonomic assignment down to the genus level, but cannot accurately resolve species level membership. We applied Resphera Insight, a high-resolution methodology for 16S rRNA taxonomic assignment that is able to provide species level context in its assignments of 16S rRNA next generation sequencing (NGS) data. Resphera Insight applied to saliva samples from HNSCC patients and healthy controls led to the discovery that a subset of HNSCC saliva samples is significantly enriched with commensal species from the vaginal flora, including Lactobacillus gasseri/johnsonii (710x higher in saliva) and Lactobacillus vaginalis (52x higher in saliva). These species were not observed in normal saliva from Johns Hopkins patients, nor in 16S rRNA NGS saliva samples from the Human Microbiome Project (HMP). Interestingly, both species were only observed in saliva from Human Papilloma Virus (HPV) positive and HPV negative oropharyngeal cancer patients. We confirmed the representation of both species in HMP data obtained from mid-vagina (n=128) and vaginal introitus (n=121) samples. Resphera Insight also led to the discovery that Fusobacterium nucleatum, an oral cavity flora commensal bacterium linked to colon cancer, is enriched (600x higher) in saliva from a subset of HNSCC patients with advanced tumors stages. Together, these high-resolution analyses on 583 samples suggest a possible role for bacterial species in the therapeutic outcome of HPV positive and HPV negative HNSCC patients. PMID- 29340031 TI - Analyzing the influence of kinase inhibitors on DNA repair by differential proteomics of chromatin-interacting proteins and nuclear phospho-proteins. AB - The combination of radiotherapy and pharmacological inhibition of cellular signal transduction pathways offers promising strategies for enhanced cancer cell inactivation. However, the molecular effects of kinase inhibitors especially on DNA damage detection and repair after X-irradiation have to be understood to facilitate the development of efficient and personalized treatment regimens. Therefore, we applied differential proteomics for analyzing inhibitor-induced changes in either chromatin-bound or phosphorylated nuclear proteins. The effect of the multi kinase inhibitor sorafenib on DNA repair, chromatin binding and phosphorylation of nuclear proteins was analyzed in UT-SCC 42B head and neck cancer cells using metabolic labeling based differential proteomics (SILAC). Sorafenib significantly inhibited DNA repair but failed to significantly affect chromatin interactions of 90 quantified proteins. In contrast, analyzing nuclear phospho-proteins following sorafenib treatment, we detected quantitative changes in 9 out of 59 proteins, including DNA-repair proteins. In conclusion, the analysis of nuclear phospho-proteins by differential proteomics is an effective tool for determining the molecular effects of kinase inhibitors on X-irradiated cells. Analyzing chromatin binding might be less promising. PMID- 29340030 TI - Increased efficacy of metformin corresponds to differential metabolic effects in the ovarian tumors from obese versus lean mice. AB - Obesity is a significant risk factor for ovarian cancer (OC) and associated with worse outcomes for this disease. We assessed the anti-tumorigenic effects of metformin in human OC cell lines and a genetically engineered mouse model of high grade serous OC under obese and lean conditions. Metformin potently inhibited growth in a dose-dependent manner in all four human OC cell lines through AMPK/mTOR pathways. Treatment with metformin resulted in G1 arrest, induction of apoptosis, reduction of invasion and decreased hTERT expression. In the K18 gT121+/-; p53fl/fl; Brca1fl/fl (KpB) mouse model, metformin inhibited tumor growth in both lean and obese mice. However, in the obese mice, metformin decreased tumor growth by 60%, whereas tumor growth was only decreased by 32% in the lean mice (p=0.003) compared to vehicle-treated mice. The ovarian tumors from obese mice had evidence of impaired mitochondrial complex 2 function and energy supplied by omega fatty acid oxidation rather than glycolysis as compared to lean mice, as assessed by metabolomic profiling. The improved efficacy of metformin in obesity corresponded with inhibition of mitochondrial complex 1 and fatty acid oxidation, and stimulation of glycolysis in only the OCs of obese versus lean mice. In conclusion, metformin had anti-tumorigenic effects in OC cell lines and the KpB OC pre-clinical mouse model, with increased efficacy in obese versus lean mice. Detected metabolic changes may underlie why ovarian tumors in obese mice have heightened susceptibility to metformin. PMID- 29340032 TI - C3G promotes a selective release of angiogenic factors from activated mouse platelets to regulate angiogenesis and tumor metastasis. AB - Previous observations indicated that C3G (RAPGEF1) promotes alpha-granule release, evidenced by the increase in P-selectin exposure on the platelet surface following its activation. The goal of the present study is to further characterize the potential function of C3G as a modulator of the platelet releasate and its implication in the regulation of angiogenesis. Proteomic analysis revealed a decreased secretion of anti-angiogenic factors from activated transgenic C3G and C3G?Cat platelets. Accordingly, the secretome from both transgenic platelets had an overall pro-angiogenic effect as evidenced by an in vitro capillary-tube formation assay with HUVECs (human umbilical vein endothelial cells) and by two in vivo models of heterotopic tumor growth. In addition, transgenic C3G expression in platelets greatly increased mouse melanoma cells metastasis. Moreover, immunofluorescence microscopy showed that the pro angiogenic factors VEGF and bFGF were partially retained into alpha-granules in thrombin- and ADP-activated mouse platelets from both, C3G and C3GDeltaCat transgenic mice. The observed interaction between C3G and Vesicle-associated membrane protein (Vamp)-7 could explain these results. Concomitantly, increased platelet spreading in both transgenic platelets upon thrombin activation supports this novel function of C3G in alpha-granule exocytosis. Collectively, our data point out to the co-existence of Rap1GEF-dependent and independent mechanisms mediating C3G effects on platelet secretion, which regulates pathological angiogenesis in tumors and other contexts. The results herein support an important role for platelet C3G in angiogenesis and metastasis. PMID- 29340033 TI - CXCR4-expressing Mist1+ progenitors in the gastric antrum contribute to gastric cancer development. AB - Mist1 was recently shown to identify a discrete population of stem cells within the isthmus of the oxyntic gland within the gastric corpus. Chief cells at the base of the gastric corpus also express Mist1. The relevance of Mist1 expression as a marker of specific cell populations within the antral glands of the distal stomach, however, is unknown. Using Mist1-CreERT mice, we revealed that Mist1+ antral cells, distinct from the Mist1+ population in the corpus, comprise long lived progenitors that reside within the antral isthmus above Lgr5+ or CCK2R+ cells. Mist1+ antral progenitors can serve as an origin of antral tumors induced by loss of Apc or MNU treatment. Mist1+ antral progenitors, as well as other antral stem/progenitor population, express Cxcr4, and are located in close proximity to Cxcl12 (the Cxcr4 ligand)-expressing endothelium. During antral carcinogenesis, there is an expansion of Cxcr4+ epithelial cells as well as the Cxcl12+ perivascular niche. Deletion of Cxcl12 in endothelial cells or pharmacological blockade of Cxcr4 inhibits antral tumor growth. Cxcl12/Cxcr4 signaling may be a potential therapeutic target. PMID- 29340034 TI - Prexasertib, a cell cycle checkpoint kinases 1 and 2 inhibitor, increases in vitro toxicity of PARP inhibition by preventing Rad51 foci formation in BRCA wild type high-grade serous ovarian cancer. AB - PARP inhibitors (PARPi) have been effective in high-grade serous ovarian cancer (HGSOC), although clinical activity is limited against BRCA wild type HGSOC. The nearly universal loss of normal p53 regulation in HGSOCs causes dysfunction in the G1/S checkpoint, making tumor cells reliant on Chk1-mediated G2/M cell cycle arrest for DNA repair. Therefore, Chk1 is a reasonable target for a combination strategy with PARPi in treating BRCA wild type HGSOC. Here we investigated the combination of prexasertib mesylate monohydrate (LY2606368), a Chk1 and Chk2 inhibitor, and a PARP inhibitor, olaparib, in HGSOC cell lines (OVCAR3, OV90, PEO1 and PEO4) using clinically attainable concentrations. Our findings showed combination treatment synergistically decreased cell viability in all cell lines and induced greater DNA damage and apoptosis than the control and/or monotherapies (p<0.05). Treatment with olaparib in BRCA wild type HGSOC cells caused formation of Rad51 foci, whereas the combination treatment with prexasertib inhibited transnuclear localization of Rad51, a key protein in homologous recombination repair. Overall, our data provide evidence that prexasertib and olaparib combination resulted in synergistic cytotoxic effects against BRCA wild type HGSOC cells through reduced Rad51 foci formation and greater induction of apoptosis. This may be a novel therapeutic strategy for HGSOC. PMID- 29340035 TI - ABCB1 3435TT and ABCG2 421CC genotypes were significantly associated with longer progression-free survival in Chinese breast cancer patients. AB - Objective: To investigate the distribution of ABCB1 C3435T and ABCG2 C421A gene polymorphisms in Chinese Han population and their influences on the susceptibility and prognosis of breast carcinoma. Methods: A total of 200 female subjects were enrolled in this study, comprising 100 breast cancer patients and 100 healthy controls. Carcinoma and para-carcinoma tissues were collected from the breast cancer patients, while peripheral blood was collected from healthy controls. Single nucleotide polymorphisms (SNPs) were detected by the Taqman method. Progression-free survival (PFS) and 5-year survival rate of the patients were calculated. Results: ABCB1 C3435T and ABCG2 C421A polymorphisms were not associated with disease susceptibility and 5-year survival rate in the study population (p>0.05). However, a high mutation rate of both ABCB1 C3435T and ABCG2 C421A (16% and 17%, respectively) was observed in breast cancer tissues. Patients with ABCB1 3435TT genotype or ABCG2 421CC genotype had longer PFS (p<0.05). Conclusion: ABCB1 3435TT and ABCG2 421CC were significantly associated with longer PFS in Chinese breast cancer patients. PMID- 29340036 TI - The association between elevated fasting plasma glucose levels and carotid intima media thickness in non-diabetic adults: a population-based cross-sectional study. AB - We assessed the association between the mean carotid intima-media thickness (CIMT) and fasting plasma glucose (FPG) levels in a low-income population in rural China. Adults aged >=45 years without a history of diabetes, stroke, or cardiovascular disease were recruited. All participants were categorized into four groups according to FPG level. A total of 3509 participants were analyzed in this study. In the univariate analysis, sex, age, education level, hypertension, central obesity, current smoking, alcohol consumption, and higher levels of FPG, total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C) were associated with mean CIMT and frequency of increased CIMT. FPG levels were significantly associated with mean CIMT; each 1-mmol/L increase in FPG resulted in a 2.75-MUm increase in mean CIMT when adjusted by age, sex, education level, current smoking status, alcohol consumption, hypertension, and the levels of TC, TG, HDL-C, and LDL-C (P = 0.044). However, the association between FPG and the frequency of increased CIMT disappeared after adjusting by covariates. These findings indicate that FPG is an independent determinant of mean CIMT in a non-diabetic population. Management and control of FPG levels is crucial for preventing atherosclerosis in populations with high stroke risks in China. PMID- 29340037 TI - Systemic bioinformatics analysis of recurrent aphthous stomatitis gene expression profiles. AB - Recurrent aphthous stomatitis (RAS) represents the most common chronic oral diseases with the prevalence ranges from 5% to 25% for different populations. Its pathogenesis remains poorly understood, which limits the development of effective drugs and treatment methods. In this study, we conducted systemic bioinformatics analysis of gene expression profiles from the Gene Expression Omnibus (GEO) to identify potential drug targets for RAS. We firstly downloaded the gene microarray datasets with the accession number of GSE37265 from GEO and performed robust multi-array (RMA) normalization with affy R programming package. Secondly, differential expression genes (DEGs) in RAS samples compared with control samples were identified based on limma package. Enriched gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways of DEGs were obtained through the Database for Annotation, Visualization and Integrated Discovery (DAVID). Finally, protein-protein interaction (PPI) network was constructed based on the combination of HPRD and BioGrid databases. What's more, we identified modules of PPI network through MCODE plugin of Cytoscape for the purpose of screening of valuable targets. As a result, 915 genes were found to be significantly differential expression in RAS samples and biological processes related to immune and inflammatory response were significantly enriched in those genes. Network and module analysis identified FBXO6, ITGA4, VCAM1 and etc as valuable therapeutic targets for RAS. Finally, FBXO6, ITGA4, and VCAM1 were further confirmed by real time RT-PCR and western blot. This study should be helpful for the research and treatment of RAS. PMID- 29340038 TI - Diagnostic performance of 68Gallium-PSMA-11 PET/CT to detect significant prostate cancer and comparison with 18FEC PET/CT. AB - Background: Radiolabeled prostate-specific membrane antigen (PSMA) has proven to be a highly accurate method to detect recurrence and metastases of prostate cancer, but only sparse data is available about its performance in the diagnosis of clinically significant primary prostate cancer. Methods: We compared 68Ga-PSMA 11 PET/CT in 25 patients with 18FEC PET/CT in 40 patients with suspected prostate carcinoma based on an increased PSA level.The PET/CT results were compared with the histopathologic Gleason Score (GS) of biopsies. Results: The 68Ga-PSMA-11 PET/CT revealed highly suspect prostatic lesions (maximum standardized uptake value/SUVmax >2.5) in 21/25 patients (84%), associated with GS>=6 (low-grade/high grade carcinoma). Two histopathologic non-malignancy-relevant cases (GS<6) had PSMA-SUVmax <=2.5; all histopathologic high-grade cases (GS>=7b) showed PSMA SUVmax >12.0 which further increased with rising GS. There were 2 false positives and no false negative findings for high-grade prostate cancer using a cut off level for SUVmax of 2.5.In contrast, the 18FEC PET/CT showed suspected malignant lesions in 38/40 patients (95%), which included 3 lesions with GS<6. The mean SUVmax values did not differ with different GS. There were 11 false positives and 1 false negative for detection of high-grade prostate cancer (cut off 2.5).By means of ROC analysis a SUVmax of 5.4 was found to be an optimal cut off-level to distinguish between low- and high-grade carcinoma in 68Ga-PSMA-11 PET/CT (AUC=0.9692; 95% CI 0.9086;1.0000;SD(AUC)=0.0309)). Choosing a cut off-level of SUVmax5.4, 68Ga-PSMA-11 PET/CT was able to distinguish between GS <=7a/>=7b with a sensitivity of 84%, a specificity of 100%, a negative predictive value (NPV) of 67%, and an efficiency of 88% (p<0.001).The ROC analysis revealed a SUVmax 6.5 as an optimal cut off-level to distinguish between low- and high-grade carcinoma in 18FEC PET/CT (AUC=0.7470; 95% CI 0.5919;0.9020;SD(AUC)=0.0791) with a sensitivity of 61% and a specificity of 92%; but the efficiency was only 70% and the NPV 50% (p=0.01). Conclusion: 68Ga-PSMA-11 PET/CT guided biopsy of the prostate increases diagnostic precision and is likely to help to reduce overtreatment of low-grade malignant disease as well as detect the foci of the highest Gleason pattern. Both methods (68Ga-PSMA-11,18FEC) were suitable to detect primary prostate cancer, but the excellent image quality, the higher specificity and the good correlation of positive scans with GS are advantages of 68Ga-PSMA-11. PMID- 29340039 TI - Integrative molecular network analysis identifies emergent enzalutamide resistance mechanisms in prostate cancer. AB - Recent work demonstrates that castration-resistant prostate cancer (CRPC) tumors harbor countless genomic aberrations that control many hallmarks of cancer. While some specific mutations in CRPC may be actionable, many others are not. We hypothesized that genomic aberrations in cancer may operate in concert to promote drug resistance and tumor progression, and that organization of these genomic aberrations into therapeutically targetable pathways may improve our ability to treat CRPC. To identify the molecular underpinnings of enzalutamide-resistant CRPC, we performed transcriptional and copy number profiling studies using paired enzalutamide-sensitive and resistant LNCaP prostate cancer cell lines. Gene networks associated with enzalutamide resistance were revealed by performing an integrative genomic analysis with the PAthway Representation and Analysis by Direct Reference on Graphical Models (PARADIGM) tool. Amongst the pathways enriched in the enzalutamide-resistant cells were those associated with MEK, EGFR, RAS, and NFKB. Functional validation studies of 64 genes identified 10 candidate genes whose suppression led to greater effects on cell viability in enzalutamide-resistant cells as compared to sensitive parental cells. Examination of a patient cohort demonstrated that several of our functionally-validated gene hits are deregulated in metastatic CRPC tumor samples, suggesting that they may be clinically relevant therapeutic targets for patients with enzalutamide resistant CRPC. Altogether, our approach demonstrates the potential of integrative genomic analyses to clarify determinants of drug resistance and rational co-targeting strategies to overcome resistance. PMID- 29340040 TI - Identifying the dynamics of actin and tubulin polymerization in iPSCs and in iPSC derived neurons. AB - The development of the nervous system requires cytoskeleton-mediated processes coordinating self-renewal, migration, and differentiation of neurons. It is not surprising that many neurodevelopmental problems and neurodegenerative disorders are caused by deficiencies in cytoskeleton-related genes. For this reason, we focus on the cytoskeletal dynamics in proliferating iPSCs and in iPSC-derived neurons to better characterize the underpinnings of cytoskeletal organization looking at actin and tubulin repolymerization studies using the cell permeable probes SiR-Actin and SiR-Tubulin. During neurogenesis, each neuron extends an axon in a complex and changing environment to reach its final target. The dynamic behavior of the growth cone and its capacity to respond to multiple spatial information allows it to find its correct target. We decided to characterize various parameters of the actin filaments and microtubules. Our results suggest that a rapid re-organization of the cytoskeleton occurs 45 minutes after treatments with de-polymerizing agents in iPSCs and 60 minutes in iPSC-derived neurons in both actin filaments and microtubules. The quantitative data confirm that the actin filaments have a primary role in the re-organization of the cytoskeleton soon after de-polymerization, while microtubules have a major function following cytoskeletal stabilization. In conclusion, we investigate the possibility that de-polymerization of the actin filaments may have an impact on microtubules organization and that de-polymerization of the microtubules may affect the stability of the actin filaments. Our results suggest that a reciprocal influence of the actin filaments occurs over the microtubules and vice versa in both in iPSCs and iPSC-derived neurons. PMID- 29340041 TI - Discovery of a highly selective KIT kinase primary V559D mutant inhibitor for gastrointestinal stromal tumors (GISTs). AB - KIT kinase V559D mutation is the most prevalent primary gain-of-function mutation in Gastrointestinal Stromal Tumors (GISTs). Here we reported a highly selective KIT V559D inhibitor CHMFL-KIT-031, which displayed about 10-20 fold selectivity over KIT wt in the biochemical assay (IC50: 28 nM over 168 nM; Kd: 266 nM versus 6640 nM) and in cell (EC50: 176 nM versus 2000 nM for pY703) examination. It also displayed 15~400-fold selectivity over other primary mutants such as L576P and secondary mutants including T670I, V654A (ATP binding pocket) as well as N822K and D816V (activation loop). In addition, it exhibited a selectivity S score (1) of 0.01 among 468 kinases/mutants in the KINOMEScanTM assay. CHMFL-KIT-031 showed potent inhibitory efficacy for KIT V559D mediated signaling pathways in cell and anti-tumor activity in vivo (Tumor Growth Inhibition: 68.5%). Its superior selectivity would make it a good pharmacological tool for further dissection of KIT V559D mediated pathology in the GISTs. PMID- 29340042 TI - Identification of potential genetic causal variants for rheumatoid arthritis by whole-exome sequencing. AB - Rheumatoid arthritis (RA) is a highly prevalent chronic autoimmune disease. However, genetic and environmental factors involved in RA pathogenesis are still remained largely unknown. To identify the genetic causal variants underlying pathogenesis and disease progression of RA patients, we undertook the first comprehensive whole-exome sequencing (WES) study in a total of 124 subjects including 58 RA cases and 66 healthy controls in Han Chinese population. We identified 378 novel genes that were enriched with deleterious variants in RA patients using a gene burden test. The further functional effects of associated genetic genes were classified and assessed, including 21 newly identified genes that were involved in the extracellular matrix (ECM)-receptor interaction, protein digestion and absorption, focal adhesion and glycerophospholipid metabolism pathways relevant to RA pathogenesis. Moreover, six pathogenic variants were investigated and structural analysis predicted their potentially functional alteration by homology modeling. Importantly, five novel and rare homozygous variants (NCR3LG1, RAP1GAP, CHCHD5, HIPK2 and DIAPH2) were identified, which may exhibit more functional impact on RA pathogenesis. Notably, 7 genes involved in the olfactory transduction pathway were enriched and associated with RA disease progression. Therefore, we performed an efficient and powerful technique WES in Chinese RA patients and identified novel, rare and common disease causing genes that alter innate immunity pathways and contribute to the risk of RA. Findings in this study may provide potential diagnostic tools and therapeutic strategies for RA patients. PMID- 29340043 TI - Clinical significance of YAP1 activation in head and neck squamous cell carcinoma. AB - By analyzing the genomic data of head and neck squamous cell cancer (HNSCC), we investigated clinical significance of YAP1 activation. Copy number and mRNA expression of YAP1 were analyzed together to assess clinical relevance of YAP1 activation in HNSCC. The clinical significance of YAP1 activation was further validated in four independent test cohorts. We also assessed the correlation of YAP1 activation with genomic alterations such as copy number alteration, somatic mutation, and miRNA expression. The YAP1-activated (YA) subgroup showed worse prognosis for HNSCC as tested and validated in five cohorts. In a multivariate risk analysis, the YAP1 signature was the most significant predictor of overall survival. The YAP1-inactivated (YI) subgroup was associated with HPV-positive status. In multiplatform analysis, YA tumors had gain of EGFR and SNAI2; loss of tumor-suppressor genes such as CSMD1, CDKN2A, NOTCH1, and SMAD4; and high mutation rates of TP53 and CDKN2A. YI tumors were characterized by gain of PIK3CA, SOX2, and TP63; deletion of 11q23.1; and high mutation rates of NFE2L2, PTEN, SYNE1, and NSD1. YA tumors also showed weaker immune activity as reflected in low IFNG composite scores and YAP1 activity is negatively associated with potential response to treatment of pembrolizumab. In conclusion, activation of YAP1 is associated with worse prognosis of patients with HNSCC and potential resistance to immunotherapy. PMID- 29340045 TI - RIP140 and LCoR expression in gastrointestinal cancers. AB - The transcription coregulators RIP140 and LCoR are part of a same complex which controls the activity of various transcription factors and cancer cell proliferation. In this study, we have investigated the expression of these two genes in human colorectal and gastric cancers by immunohistochemistry. In both types of tumors, the levels of RIP140 and LCoR appeared highly correlated. Their expression tended to decrease in colorectal cancer as compared to adjacent normal tissues but was found higher in gastric cancer as compared to normal stomach. RIP140 and LCoR expression correlated with TNM and tumor differentiation. Significant correlations were observed with expression levels of key proteins involved in tumor progression and invasion namely E-cadherin and Cyclooxygenase 2. Survival analysis showed that patients with LCoRlow/RIP140high colorectal tumors have a significant prolonged overall and disease-free survival. In gastric cancer, high LCoR expression was identified as an independent marker of poor prognosis suggesting a key role in this malignancy. Altogether, these results demonstrate that RIP140 and LCoR have a prognostic relevance in gastrointestinal cancers and could represent new potential biomarkers in these tumors. PMID- 29340044 TI - Cepharanthine hydrochloride reverses the mdr1 (P-glycoprotein)-mediated esophageal squamous cell carcinoma cell cisplatin resistance through JNK and p53 signals. AB - Esophageal squamous cell carcinoma (ESCC) is an aggressive malignancy that is often resistant to therapy. Nowadays, chemotherapy is still one of the main methods for the treatment of ESCC. However, the multidrug resistance (MDR) mediated chemotherapy resistance is one of the leading causes of death. Exploring agents able to reverse MDR, which thereby increase the sensitivity with clinical first-line chemotherapy drugs, could significantly improve cancer treatment. Cepharanthine hydrochloride (CEH) has the ability to reverse the MDR in ESCC and the mechanism involved have not been reported. The aim of the study was to investigate the potential of CEH to sensitize chemotherapeutic drugs in ESCC and explore the underlying mechanisms by in vitro and in vivo studies. Our data demonstrated that CEH significantly inhibited ESCC cell proliferation in a dose dependent manner, induced G2/M phase cell cycle arrest and apoptosis, and increased the sensitivity of cell lines resistant to cisplatin (cDDP). Mechanistically, CEH inhibited ESCC cell growth and induced apoptosis through activation of c-Jun, thereby inhibiting the expression of P-gp, and enhancing p21 expression via activation of the p53 signaling pathway. In this study, we observed that growth of xenograft tumors derived from ESCC cell lines in nude mice was also significantly inhibited by combination therapy. To our knowledge, we demonstrate for the first time that CEH is a potentially effective MDR reversal agent for ESCC, based on downregulation of the mRNA expression of MDR1 and P-gp. Together, these results reveal emphasize CEH putative role as a resistance reversal agent for ESCC. PMID- 29340046 TI - Sampling from single-cell observations to predict tumor cell growth in-vitro and in-vivo. AB - Cancer stem-like cells (CSCs) are a topic of increasing importance in cancer research, but are difficult to study due to their rarity and ability to rapidly divide to produce non-self-cells. We developed a simple model to describe transitions between aldehyde dehydrogenase (ALDH) positive CSCs and ALDH(-) bulk ovarian cancer cells. Microfluidics device-isolated single cell experiments demonstrated that ALDH+ cells were more proliferative than ALDH(-) cells. Based on our model we used ALDH+ and ALDH(-) cell division and proliferation properties to develop an empiric sampling algorithm and predict growth rate and CSC proportion for both ovarian cancer cell line and primary ovarian cancer cells, in vitro and in-vivo. In both cell line and primary ovarian cancer cells, the algorithm predictions demonstrated a high correlation with observed ovarian cancer cell proliferation and CSC proportion. High correlation was maintained even in the presence of the EGF-like domain multiple 6 (EGFL6), a growth factor which changes ALDH+ cell asymmetric division rates and thereby tumor growth rates. Thus, based on sampling from the heterogeneity of in-vitro cell growth and division characteristics of a few hundred single cells, the simple algorithm described here provides rapid and inexpensive means to generate predictions that correlate with in-vivo tumor growth. PMID- 29340047 TI - Inhibition of polo-like kinase 4 (PLK4): a new therapeutic option for rhabdoid tumors and pediatric medulloblastoma. AB - Rhabdoid tumors (RT) are highly aggressive and vastly unresponsive embryonal tumors. They are the most common malignant CNS tumors in infants below 6 months of age. Medulloblastomas (MB) are embryonal tumors that arise in the cerebellum and are the most frequent pediatric malignant brain tumors. Despite the advances in recent years, especially for the most favorable molecular subtypes of MB, the prognosis of patients with embryonal tumors remains modest with treatment related toxicity dreadfully high. Therefore, new targeted therapies are needed. The polo like kinase 4 (PLK4) is a critical regulator of centriole duplication and consequently, mitotic progression. We previously established that PLK4 is overexpressed in RT and MB. We also demonstrated that inhibiting PLK4 with a small molecule inhibitor resulted in impairment of proliferation, survival, migration and invasion of RT cells. Here, we showed in MB the same effects that we previously described for RT. We also demonstrated that PLK4 inhibition induced apoptosis, senescence and polyploidy in RT and MB cells, thereby increasing the susceptibility of cancer cells to DNA-damaging agents. In order to test the hypothesis that PLK4 is a CNS druggable target, we demonstrated efficacy with oral administration to an orthotropic xenograft model. Based on these results, we postulate that targeting PLK4 with small-molecule inhibitors could be a novel strategy for the treatment of RT and MB and that PLK4 inhibitors (PLK4i) might be promising agents to be used solo or in combination with cytotoxic agents. PMID- 29340048 TI - Alteration of mitochondrial biogenesis promotes disease progression in multiple myeloma. AB - Many cancers, including multiple myeloma (MM), retain more cytosolic iron to promote tumor cell growth and drug resistance. Higher cytosolic iron promotes oxidative damage due to its interaction with reactive oxygen species generated by mitochondria. The variation of mitochondrial biogenesis in different stages of MM disease was evaluated using gene expression profiles in a large clinical dataset. Sixteen of 18mitochondrial biogenesis related gene sets, including mitochondrial biogenesis signature and oxidative phosphorylation, were increased in myeloma cells compared with normal plasma cells and high expression was associated with an inferior patient outcome. Relapsed and drug resistant myeloma samples had higher expression of mitochondrial biogenesis signatures than newly diagnosed patient samples. The expression of mitochondrial biogenesis genes was regulated by the cellular iron content, which showed a synergistic effect in patient outcome in MM. Pharmacological ascorbic acid induced myeloma cell death by inhibition of mitochondria oxidative phosphorylation in an in vivo model. Here, we identify that dysregulated mitochondrial biogenesis and iron homeostasis play a major role in myeloma progression and patient outcome and that pharmacological ascorbic acid, through cellular iron content and mitochondrial oxidative species, should be considered as a novel treatment in myeloma including drug-resistant and relapsed patients. PMID- 29340050 TI - Molecular characteristics and clinical outcomes of EGFR exon 19 indel subtypes to EGFR TKIs in NSCLC patients. AB - Patients with non-small cell lung cancer (NSCLC) with activating epidermal growth factor receptor (EGFR) mutations (exon 19 deletions and L858R) benefit from EGFR tyrosine kinase inhibitors (TKIs). However, some researchers have reported that responses to TKIs differ by subtypes of EGFR exon 19 mutations. We retrospectively analyzed EGFR exon 19 deletion subtypes and their correlation with clinical outcomes of treatment with TKIs. A cohort of 2664 consecutive patients with NSCLC was enrolled. A total of 440 EGFR exon 19 deletions were defined as 39 subtypes. Among them, 158 patients with advanced lung adenocarcinoma with EGFR exon 19 deletion mutations received EGFR-TKIs. There were no significant differences in progression-free survival or overall survival among patients with non-LRE deletions, delE746, or delL747 (P = 0.463 and P = 0.464, respectively). Furthermore, two patients with EGFR exon19 insertion had durable response to EGFR-TKIs. In conclusion, EGFR exon 19 is highly fragile, resulting in many different deletion and insertion subtypes. There were no significant differences in clinical outcomes after TKI treatment across the different subtypes. It is necessary to attempt to identify all patients with exon 19 deletions so that they can be offered TKI treatment. PMID- 29340049 TI - Pharmacological treatment with inhibitors of nuclear export enhances the antitumor activity of docetaxel in human prostate cancer. AB - Background and aims: Docetaxel (DTX) modestly increases patient survival of metastatic castration-resistant prostate cancer (mCRPC) due to insurgence of pharmacological resistance. Deregulation of Chromosome Region Maintenance (CRM 1)/ exportin-1 (XPO-1)-mediated nuclear export may play a crucial role in this phenomenon. Material and methods: Here, we evaluated the effects of two Selective Inhibitor of Nuclear Export (SINE) compounds, selinexor (KPT-330) and KPT-251, in association with DTX by using 22rv1, PC3 and DU145 cell lines with their. DTX resistant derivatives. Results and conclusions: We show that DTX resistance may involve overexpression of beta-III tubulin (TUBB3) and P-glycoprotein as well as increased cytoplasmic accumulation of Foxo3a. Increased levels of XPO-1 were also observed in DTX resistant cells suggesting that SINE compounds may modulate DTX effectiveness in sensitive cells as well as restore the sensitivity to DTX in resistant ones. Pretreatment with SINE compounds, indeed, sensitized to DTX through increased tumor shrinkage and apoptosis by preventing DTX-induced cell cycle arrest. Basally SINE compounds induce FOXO3a activation and nuclear accumulation increasing the expression of FOXO-responsive genes including p21, p27 and Bim causing cell cycle arrest. SINE compounds-catenin and survivin supporting apoptosis. betadown-regulated Cyclin D1, c-myc, Nuclear sequestration of p-Foxo3a was able to reduce ABCB1 and TUBB3 H2AX levels, prolonged gamma expression. Selinexor treatment increased DTX-mediated double strand breaks (DSB), and reduced the levels of DNA repairing proteins including DNA PKc and Topo2A. Our results provide supportive evidence for the therapeutic use of SINE compounds in combination with DTX suggesting their clinical use in mCRPC patients. PMID- 29340051 TI - MicroRNA-34a inhibits cells proliferation and invasion by downregulating Notch1 in endometrial cancer. AB - MicroRNAs (miRNAs) are small non-coding RNAs composed of 18-25 nucleotides that regulate the expression of approximately 30% of human protein coding genes. Dysregulation of miRNAs plays a pivotal role in the initiation and progression of malignancies. Our study has shown that microRNA-34a (miR-34a) was upregulated in human endometrial cancer stem cells (ECSCs). However, it is unknown how miR-34a regulates endometrial cancer itself. Here, we report that miR-34a directly and functionally targeted Notch1. MiR-34a inhibited the proliferation, migration, invasion, EMT-associated phenotypes by downregulating Notch1 in endometrial cancer cells. Overexpression of miR-34a also suppressed tumor growth in nude mice. Importantly, further results suggested miR-34a was significantly downregulated in endometrial cancer tissues and negatively correlated with Notch1 expression. There was a significant association between decreased miR-34a expression and worse patient prognosis. Taken together, our results suggest that miR-34a plays tumor-suppressive roles in endometrial cancer through downregulating Notch1. Thus miR-34a could be a potential therapeutic target for prevention and treatment of endometrial cancer. PMID- 29340052 TI - Gene expression profiling and construction of a putative gene regulatory network of bladder cancer tumor-initiating cells. AB - Human bladder cancer tumors have been shown to contain a subpopulation of cells with stem-like characteristics that may trigger tumor growth, recurrence, and metastasis. These cells, known as tumor-initiating cells (TICs), would be effective diagnostic tools and valuable therapeutic targets. Here, we report the isolation of TICs from seven bladder cancer cell lines and show that TICs from different sources vary on their ability to form tumorspheres in vitro and generate xenografts in vivo, which suggest they are remarkably heterogeneous. We used the Affymetrix PrimeViewTM Human Gene Expression Array to analyze gene expression profiles of bladder TICs, which may help understand their tumorigenic capacities and develop novel treatments specifically targeted toward these cells. We then constructed a transcription factor-gene regulatory network that includes three key transcription factors that are involved in cell survival, differentiation, proliferation, and apoptosis. We validated our findings by analyzing mRNA expression of the key genes in this network in 24 clinical tissues. Our results suggest that this transcription factor-gene regulatory network could be useful in the development of clinical diagnostic tools and therapy approaches for bladder cancer. PMID- 29340053 TI - Indomethacin-based stimuli-responsive micelles combined with paclitaxel to overcome multidrug resistance. AB - Development of multidrug resistance against antitumor agents is a major limiting factor for the successful chemotherapy. Currently, both amphiphilic polymeric micelles and chemosensitizers have been proposed to overcome MDR during chemotherapy. Herein, the redox-responsive polymeric micelles composed of dextran and indomethacin (as chemosensitizer) using a disulfide bond as the linker are prepared (DEX-SS-IND) for delivery of antitumor agent paclitaxel (PTX). The high level of glutathione in tumor cells selectively breaks the disulfide bond, leading to the rapid breakdown and deformation of redox-responsive polymeric micelles. The data show that DEX-SS-IND can spontaneously form the stable micelles with high loading content (9.48 +/- 0.41%), a favorable size of 45 nm with a narrow polydispersity (0.157), good stability, and glutathione-triggered drug release behavior due to the rapid breakdown of disulfide bond between DEX and IND. In vitro antitumor assay shows DEX-SS-IND/PTX micelles effectively inhibit the proliferation of PTX-resistant breast cancer (MCF-7/PTX) cells. More impressively, DEX-SS-IND/PTX micelles possess the improved plasma pharmacokinetics, enhanced antitumor efficacy on tumor growth in the xenograft models of MCF-7/PTX cells, and better in vivo safety. Overall, DEX-SS-IND/PTX micelles display a great potential for cancer treatment, especially for multidrug resistance tumors. PMID- 29340054 TI - Febuxostat attenuates ER stress mediated kidney injury in a rat model of hyperuricemic nephropathy. AB - Hyperuricemia contributes to kidney tubular injury and kidney fibrosis. However, the underlying mechanism remains unclear. Here we examined the role of RTN1A, a novel endoplasmic reticulum (ER)-associated protein and ER stress in hyperuricemic nephropathy. We first found the expression of RTN1A and ER stress markers was significantly increased in kidney biopsies of hyperuricemia patients with kidney injury. In a rat model of hyperuricemic nephropathy (HN) established by oral administration of a mixture of adenine and potassium oxonate, increased expression of RTN1A and ER stress was shown in tubular and interstitial compartment of rat kidneys. Treatment of Febuxostat, a new selective inhibitor of xanthine oxidase (XO), not only attenuated renal tubular injury and tubulointerstitial fibrosis, but also reduced uric acid crystals deposition in HN rat kidneys. In vitro, Febuxostat also reduced ER stress and apoptosis in uric acid treated tubular epithelial cells. Our data suggest that RTN1A and ER stress mediate tubular cell injury and kidney fibrosis in HN. Urate-lowering therapy (ULT) with Febuxostat attenuates uric-acid induced ER stress in renal tubular cells and the progression of HN. PMID- 29340055 TI - Concurrent brain radiotherapy and EGFR-TKI may improve intracranial metastases control in non-small cell lung cancer and have survival benefit in patients with low DS-GPA score. AB - Epidermal growth factor receptor-tyrosine kinase inhibitor (EGFR-TKI) has intracranial activity in EGFR-mutant Non-Small Cell Lung Cancer (NSCLC). The optimal timing of brain radiotherapy (RT) and appropriate patients who need early brain RT remains undetermined. This is a retrospective study of EGFR-mutant NSCLC patients with newly diagnosed brain metastases (BMs) before EGFR-TKI initiation. Intra-cranial progression free survival (IC-PFS) and overall survival (OS) were measured from the date of EGFR-TKI treatment. A total of 113 patients were eligible, 49 received concurrent early brain RT with EGFR-TKI and 64 were treated with EGFR-TKI alone as initial therapy, including 27 with salvage RT upon BM progression. The patients with early brain RT had superior IC-PFS than those without early brain RT (21.4 vs 15.0 months, P=0.001), which remained significant in multivariate analysis (HR 0.30, P<0.001). The median overall survival (OS) for early RT, EGFR-TKI alone and salvage RT groups was 28.1, 24.5, and 24.6 months, respectively (P=0.604). Similar IC-PFS (23.6 vs 21.4 months, P=0.253) and OS (24.6 vs 28.1 months, P=0.385) were observed between salvage RT and early RT groups. For patients with Diagnosis-Specific Graded Prognostic Assessment (DS GPA) score of 0 to 2, early brain RT was the independent factor for improved OS (HR 0.33, P=0.025). In conclusion, concurrent early brain RT with EGFR-TKI may improve intracranial disease control in EGFR-mutant NSCLC with BM and have survival benefit in patients with low DS-GPA score. Salvage brain RT upon BM progression may be acceptable in some patients. PMID- 29340056 TI - Temozolomide encapsulated and folic acid decorated chitosan nanoparticles for lung tumor targeting: improving therapeutic efficacy both in vitro and in vivo. AB - Folic acid-conjugated temozolomide (TMZ)-loaded chitosan nanoparticles (CS-TMZ FLA-NP) were developed to target lung cancer in the anticipation that folic acid would increase the affinity of nanoparticles for cancer cells. CS-TMZ-FLA-NP showed the highest anti-proliferative effect on the lung cancer cells in comparison to free TMZ and CS-TMZ-NP (nanoparticles without folic acid). A cellular uptake assay was performed on two different cell lines, L132 and A549. Cellular uptake efficiencies of CS-TMZ-NP and CS-TMZ-FLA-NP were found to be concentration-dependent in both cell lines. CS-TMZ-FLA-NP produced a 2.5 fold greater accumulation of TMZ than CS-TMZ-NP in both cell lines. CS-TMZ-FLA-NP maintained a significantly higher deposition of TMZ in lung tissue (approximately 7.5 MUg/g of lung tissue) when compared to free TMZ and CS-TMZ-NP. Mice treated with CS-TMZ-FLA-NP had a 100% survival rate with significant suppression of tumor growth. Histopathological and immunohistochemical studies also demonstrated that CS-TMZ-FLA-NP had superior anticancer activity compared to the other two treatments. Our results indicate that CS-TMZ-FLA-NP can effectively facilitate targeting to human lung cancer cell lines in vitro and to lung tumors in vivo in a sustained manner and so improve the therapeutic efficacy of TMZ. PMID- 29340057 TI - Aberrant expression of STYK1 and E-cadherin confer a poor prognosis for pancreatic cancer patients. AB - Previous studies showed that aberrant Serine/threonine/tyrosine kinase 1 (STYK1, also known as NOK) or/and E-cadherin were involved in the progression of some types of human cancers. However, whether they contributed to the development of pancreatic cancer was unknown. Here, we investigated the prognostic significance of aberrant STYK1 and E-cadherin in pancreatic cancer. Our results showed that STYK1 expression increased while E-cadherin decreased in pancreatic cancer tissues compared with normal pancreas tissues. STYK1 level was positively correlated with lymph node metastasis and clinical stage in pancreatic cancer patients. E-cadherin expression was inversely correlated with STYK1 expression in pancreatic cancer tissue samples. Patients with high STYK1 and low E-cadherin expression had the worst prognosis. In addition, STYK1 knockdown in pancreatic cancer cell lines inhibited cell proliferation, enhanced cell apoptosis, induced cell cycle arrest, and prohibited cell migration, while STYK1 over-expression showed the opposite effects. Silencing STYK1 also increased E-cadherin expression and inhibited epithelial-to-mesenchymal transition (EMT) and p-p38 expression in vitro. Over-expression had showed the opposite trends, and treatment with p38 inhibitor, SB203580, could reverse the trends. Thus, STYK1 repressed E-cadherin expression and promoted EMT, mediated by p38 MAPK signaling pathway, which was the possible mechanism for STYK1-mediated pancreatic cancer cell proliferation and migration. In summary, our results showed that STYK1 might be a prognostic marker for pancreatic cancer patients and might be a novel strategy for the treatment of pancreatic cancer. PMID- 29340058 TI - A multicenter prospective phase II study of first-line modified FOLFIRINOX for unresectable advanced pancreatic cancer. AB - Background: FOLFIRINOX (FX) has been reported as an effective treatment for unresectable advanced pancreatic cancer. However, FX is associated with a high incidence of adverse events (AEs). A previous phase II study in Japan showed high incidences of hematological AEs, including febrile neutropenia (22.2%). A modified FX regimen (mFX) may decrease the rates of AEs and be more effective than FX by improving the treatment compliance. Aims: To assess the safety and efficacy of first-line mFX for unresectable advanced pancreatic cancer. Patients and methods: This was as a multicenter prospective phase II study in chemotherapy naive Japanese patients with pathologically confirmed unresectable advanced pancreatic adenocarcinoma or adenosquamous carcinoma. Treatment with mFX (85 mg/m2 oxaliplatin, 150 mg/m2 irinotecan, and 200 mg/m2 l-leucovorin, followed by 46-h continuous infusion of 2400 mg/m2 5-fluorouracil) was administered every 2 weeks. The primary endpoint was the response rate. The secondary endpoints were overall survival, progression-free survival, and safety. Results: Thirty-one patients (18 men; median age, 64 years) were enrolled. A median of 13 treatment cycles were administered during a median follow-up period of 14.2 months. The response rate, median overall survival, and median progression-free survival were 38.7%, 14.9 months, and 7.0 months, respectively. Grade 3 or 4 AEs included neutropenia (83.9%), febrile neutropenia (16.1%), peripheral sensory neuropathy (9.7%), thrombocytopenia (6.5%), diarrhea (6.5%), anorexia (6.5%), and vomiting (3.2%). Conclusion: Compared to FX, mFX may result in fewer Grade 3 or 4 non hematological AEs, with a comparable response rate. However, further efforts might be required to reduce hematological AEs. PMID- 29340059 TI - MicroRNA-95 promotes myogenic differentiation by down-regulation of aminoacyl tRNA synthase complex-interacting multifunctional protein 2. AB - MicroRNA-95 (miR-95) is well known for its ability to promote the proliferation of a variety of cancer cells, but its function in skeletal muscle development has not been reported so far. Our laboratory has recently generated genetically engineered Meishan pigs containing a loss-of-function myostatin (MSTN) mutant (MSTN-/-). These MSTN-/- pigs grow and develop normally but show clear double muscle phenotype as observed in Belgian cattle. We observed that the expression of miR-95 was up-regulated in the longissimus dorsi from MSTN-/- Meishan pigs at day 65 during embryo development. In this study, we investigated the role of miR 95 in the myogenic differentiation using a murine myoblast cell line C2C12. Our results revealed that miR-95 may play a very important role in regulating the expression of myogenic differentiation marker genes myosin heavy chain (MHC) and myogenin. By use of bioinformatical analysis and luciferase reporter gene assay, aminoacyl-tRNA synthase complex-interacting multifunctional protein 2 (AIMP2) gene was identified as a miR-95 target gene involved in myogenic differentiation. Our results indicated that higher miR-95 expression level leads to lower level of AIMP2 protein expression. When the endogenous expression of AIMP2 is inhibited by siRNA, the expression levels of myogenic differentiation marker genes MHC and myogenin increased, implying that AIMP2 negatively regulates myogenic differentiation. Taken together, it is likely that miR-95 promotes myogenic differentiation in C2C12 myoblasts and may play a positive functional role in skeletal muscle development by down regulating the expression of AIMP2 at protein level. PMID- 29340060 TI - Assessment of antimicrobial and wound healing effects of Brevinin-2Ta against the bacterium Klebsiella pneumoniae in dermally-wounded rats. AB - Antimicrobial peptides (AMPs) are regarded as promising alternatives for antibiotics due to their inherent capacity to prevent microbial drug resistance. Amphibians are rich source of bioactive molecules, which provide numerous AMPs with various structures as drug candidates. Here, we isolated and identified a novel AMP Brevinin-2Ta (B-2Ta) from the skin secretion of the European frog, Pelophylax kl. esculentus. In vitro studies revealed that it showed broad antimicrobial activities against S. aureus, E. coli and C. albicans with low cytotoxicity to erythrocytes. Furthermore, we examined the anti-inflammation effect in vivo by using Klebsiella pneumoniae-infected Sprague-Dawley (SD) rats. The wound closure outcomes revealed that B-2Ta effectively restrained the bacterial infection at a dose of 10 times minimal inhibitory concentration (MIC) during the 14 days of the wound healing process. Ultra-structure analyses showed that B-2Ta caused structural damage to the microorganism, and bacterial culture found that the number of microbes was significantly reduced by the end of treatment. Immunohistochemistry for the inflammatory marker IL-10 and the endothelial cell marker CD31 suggested positive effects on inflammatory status and epithelial migration and angiogenesis following treatment of the infected granulation tissues with B-2Ta. These results exhibited the continuous phase of inflammation reduction and wound healing acceleration in the B-2Ta-modulated re epithelialisation of K. pneumoniae infected rats. Taken together, these data demonstrated that B-2Ta has great potential to be developed as antibacterial agents in clinic. PMID- 29340062 TI - Correlation of psychooncological distress- screening and quality of life assessment in neurosurgical patients. AB - Background: Cerebral tumors are associated with high rates of anxiety, depression and reduced health related quality of life. But still psychooncological screening instruments are not implemented in the daily routine of neurosurgical departments. In contrast the EORTC QLQ-C30/ EORTC QLQ- BN20 questionnaire is often used to evaluate quality of life in the framework of clinical studies. We were therefore interested, if conspicuous distress screening results are also reflected by HRQOL assessment. Patients and Methods: Patients who were electively admitted for surgery of intracranial lesions were screened for their psychooncological distress using two self-assessment instruments (Hospital Anxiety and Depression Scale (HADS) and Distress Thermometer (DT)) and one external assessment questionnaire (Psychooncological base documentation (PO Bado). Results were correlated with three subscales of the EORTC-QLQ-C30 and EORTC-QLQ-BN20 questionnaire. Results: From October 2013 to March 2015, 594 patients were admitted for elective cranial neurosurgical procedure. 489 neurosurgical patients were screened for increased distress. Data from 450 patients could be correlated with the EORTC-QLQ-C30 and EORTC-QLQ-BN20. In 265 patients screening revealed increased distress. A concurrent reduced global health /higher rates of future uncertainty and conspicuous distress screening results are found in 173 patients (69.5%) compared to 30.5% of patients (n= 76) with unremarkable screening. Increased distress screening was highly significant with increased level of future uncertainty as well as decreased level of quality of life and global health (p<0.0001). Conclusion: Psychooncological distress is accompanied by reduced quality of life, global heath and increased future uncertainty. Therefore HQOL assessment can be helpful identifying patients with increased distress. PMID- 29340061 TI - Analysis of the mutational landscape of classic Hodgkin lymphoma identifies disease heterogeneity and potential therapeutic targets. AB - Defining the mutational landscape of classic Hodgkin lymphoma is still a major research goal. New targeted next-generation sequencing (NGS) techniques may identify pathogenic mechanisms and new therapeutic opportunities related to this disease. We describe the mutational profile of a series of 57 cHL cases, enriched in Hodgkin and Reed-Sternberg (HRS) cells. Overall, the results confirm the presence of strong genomic heterogeneity. However, several variants were consistently detected in genes related to relevant signaling pathways, such as GM CSF/IL-3, CBP/EP300, JAK/STAT, NF-kappaB, and numerous variants of genes affecting the B-cell receptor (BCR) pathway, such as BTK, CARD11, BCL10, among others. This unexpectedly high prevalence of mutations affecting the BCR pathway suggests some requirement for active BCR signaling for cHL cell viability. Additionally, incubation of a panel of cHL cellular models with selective BTK inhibitors in vitro constrains cell proliferation and causes cell death. Our results indicate new pathogenic mechanisms and therapeutic opportunities in this disease. PMID- 29340064 TI - Antitumor activity of resveratrol against human osteosarcoma cells: a key role of Cx43 and Wnt/beta-catenin signaling pathway. AB - Osteosarcoma is a high-grade bone sarcoma with strong invasive ability. However, treatment with traditional chemotherapeutic drugs is limited by low tolerability and side effects. Resveratrol has been reported previously to have selective antitumor effect on various tumor cells while little is known about its effects and underlying mechanism in osteosarcoma biology. In this study, we found that resveratrol inhibits proliferation and glycolysis, induces apoptosis and reduces the invasiveness of U2-OS cells in vitro. After treatment with resveratrol, the expression of related Wnt/beta-catenin signaling pathway target genes, such as beta-catenin, c-myc, cyclin D1, MMP-2 and MMP-9, was downregulated and an increased E-cadherin level was observed as well. Additionally, the dual luciferase assay results also indicated that resveratrol suppressed the activity of Wnt/beta-catenin signaling pathway. Interestingly, we noticed that the expression of connexin 43 (Cx43) increased with the prolongation of resveratrol treatment time. To further investigate the relationship between Cx43 and the Wnt/beta-catenin signaling pathway in osteosarcoma, we used lentiviral-mediated shRNA to knockdown the expression of Cx43. Knockdown of Cx43 activated the Wnt/beta-catenin signaling pathway, promoted proliferation and invasion, and inhibited apoptosis of U2-OS cells. Taken together, our results demonstrate that the antitumor activity of resveratrol against U2-OS cells in vitro occurs through up-regulating Cx43 and E-cadherin, and suppressing the Wnt/beta-catenin signaling pathway. Moreover, Cx43 expression is negatively related to the activity of the Wnt/beta-catenin pathway in U2-OS cells. PMID- 29340063 TI - A molecular signature of dormancy in CD34+CD38- acute myeloid leukaemia cells. AB - Dormant leukaemia initiating cells in the bone marrow niche are a crucial therapeutic target for total eradication of acute myeloid leukaemia. To study this cellular subset we created and validated an in vitro model employing the cell line TF-1a, treated with Transforming Growth Factor beta1 (TGFbeta1) and a mammalian target of rapamycin inhibitor. The treated cells showed decreases in total RNA, Ki-67 and CD71, increased aldehyde dehydrogenase activity, forkhead box 03A (FOX03A) nuclear translocation and growth inhibition, with no evidence of apoptosis or differentiation. Using human genome gene expression profiling we identified a signature enriched for genes involved in adhesion, stemness/inhibition of differentiation and tumour suppression as well as canonical cell cycle regulation. The most upregulated gene was the osteopontin coding gene SPP1. Dormant cells also demonstrated significantly upregulated beta 3 integrin (ITGB3) and CD44, as well as increased adhesion to their ligands vitronectin and hyaluronic acid as well as to bone marrow stromal cells. Immunocytochemistry of bone marrow biopsies of AML patients confirmed the positive expression of osteopontin in blasts near the para-trabecular bone marrow, whereas osteopontin was rarely detected in mononuclear cell isolates. Unsupervised hierarchical clustering of the dormancy gene signature in primary acute myeloid leukaemia samples from the Cancer Genome Atlas identified a cluster enriched for dormancy genes associated with poor overall survival. PMID- 29340065 TI - Integrating gene and lncRNA expression to infer subpathway activity for tumor analyses. AB - LncRNAs acting as miRNA sponges to indirectly regulate mRNAs is a novel layer of gene regulation, therefore, it is necessary to integrate lncRNA and gene levels for interpreting tumor biological mechanism. In this study, we developed a lncRNA gene integrated strategy to infer functional activities for tumor analyses at the subpathway level. In this strategy, we reconstructed subpathway graphs by embedding lncRNA components and considered the expression levels of both genes and lncRNAs to infer subpathway activities for each tumor sample. And the activities were applied to three aspects of tumor analyses; First, the subpathway activities across tumor samples of five tumor types were analyzed, and it was observed that the samples with consistent subpathway activities were derived from the same or similar tumor types. Also, the subpathway activities could stratify samples into several subtypes which has different clinical characterization, e.g. survival status. Second, the subpathway activities between tumor and normal samples were analyzed, and the comparative results showed that subpathway activities displayed more specificities than entire pathway activities. Finally, based on the subpathway activities, we identified prognostic subpathways for lung cancer. Our subpathway-based signatures shared significant overlap with enrichment analysis results and displayed predictive power in the independent testing sets. In conclusion, our integrated strategy provided a framework to infer subpathway activities for tumor analyses and identify subpathway signatures for clinical use. PMID- 29340066 TI - Clinicopathological and prognostic significance of SDC1 overexpression in breast cancer. AB - Background: Breast cancer is the leading cause of cancer death among global women, and its early diagnosis and treatment are very urgent. Syndecan-1 (SDC1) is a heparin sulfate proteoglycan, which has been linked with the prognosis and treatment response in a various tumor type. To investigate whether SDC1 can serve as a prognostic indictor in breast cancer, bioinformatic analyses were performed in the present study. Methods: SDC1 expression was assessed using Oncomine analysis. Kaplan-Meier Plotter and bc-GenExMiner were performed to identify the prognostic roles of SDC1 in breast cancer. COSMIC analysis and cBioPortal database were performed to analysis the mutations of SDC1. The heat map and methylation status of SDC1 were identified by performing the UCSC. Results: We found that SDC1 was more frequently overexpressed in breast cancer than their normal tissues and its expression might be negatively related with some CpG sites. Meanwhile, pooled data suggested that SDC1 mRNA expression is associated worse prognosis of breast cancer. Following data mining in multiple big databases confirmed a positive correlation between SDC1 mRNA expression and PLAU mRNA expression in breast cancer tissues. In addition, high SDC1 expression is associated with increased risked of age, nodal, HER2 and higher SBR grade status. Conclusion: Our findings suggest that overexpressed SDC1 was identified in breast cancer than in matched normal tissues and is associated with methylation status of SDC1 promoter. Additionally, SDC1 is positively associated with PLAU and might act as a potential prognostic indicator for breast cancer. PMID- 29340067 TI - The effects of tumor necrosis factor-alpha (TNF-alpha) rs1800629 and rs361525 polymorphisms on sepsis risk. AB - This meta-analysis of 23 eligible articles comprehensively and quantitatively evaluated the effects of tumor necrosis factor-alpha (TNF-alpha) rs1800629 and rs361525 polymorphisms on sepsis risk. We found that TNF-alpha rs1800629 was associated with increased sepsis risk in the overall population in four genetic models, including A vs. G (P<0.001, odds ratio (OR)=1.32), GA vs. GG (P<0.001, OR=1.46), GA+AA vs. GG (P<0.001, OR=1.46), and carrier A vs. carrier G (P<0.001, OR=1.32). Subgroup analyses showed a similar result for Asian patients (all P<0.05, OR>1). TNF-alpha rs361525 was also associated with increased sepsis risk in Asian patients in the four genetic models (all P<0.05, OR>1). Begg's and Egger's tests excluded large publication bias, and sensitivity analysis indicated stable results. Our results suggest that the G/A genotype of TNF-alpha rs1800629 and rs361525 increases sepsis risk in an Asian population. PMID- 29340068 TI - Chaperonin containing TCP-1 subunit 3 is critical for gastric cancer growth. AB - Background: Members of eukaryotic chaperonin family are essential for cell survival. Dysregulation of Chaperonin containing TCP-1 subunit 3 (CCT3) has been implicated in the development of several types of cancers. However, the role of CCT3 in the development of gastric cancer has yet to be determined. Methods: The expression patterns of CCT3 in the surgical specimens from 26 gastric cancer patients were evaluated using immunohistochemistry methods. To study the possible roles of CCT3 in the growth and survival of gastric cancer cells, RNA interference was used to knockdown CCT3 expression in gastric cancer cell lines BGC-823 and MGC-803. The effects of CCT3 knockdown on cancer cell proliferation, apoptosis and in vivo growth were examined. Finally, gene expression changes related to CCT3 knockdown were studied using gene array analysis and western blotting. Results: Higher level of CCT3 expression was detected in the gastric cancer tissue compared to adjacent non-cancerous epithelium. Knockdown of CCT3 inhibited proliferation and colony formation while promoted apoptosis of gastric cancer cells in vitro. Gastric cancer cells exhibited lower growth potential in nude mice when CCT3 expression was suppressed. Gene expression analysis showed that CCT3 knockdown was associated with down-regulation of mitogen-activated protein kinase kinase kinase 7, cell division cycle 42, cyclin D3 and up regulation of cyclin-dependent kinase 2 and 6. Conclusion: Our results suggested that CCT3 played a critical role in gastric cancer growth and survival. Further studies on the mechanisms of CCT3 function is mandated to develop novel cancer treatment targeting CCT3. PMID- 29340069 TI - Methylenetetrahydrofolate reductase tagging polymorphisms are associated with risk of esophagogastric junction adenocarcinoma: a case-control study involving 2,740 Chinese Han subjects. AB - In this study, we aimed to determine the potential association of MTHFR tagging single nucleotide polymorphisms (SNPs) with risk of developing esophagogastric junction adenocarcinoma (EGJA). MTHFR rs1801133 G>A, rs3753584 T>C, rs4845882 G>A, rs4846048 A>G and rs9651118 T>C polymorphisms were genotyped in 1,677 healthy individuals and 1,063 patients with EGJA. We found that MTHFR rs1801133 G>A polymorphism was significantly associated with the risk of developing EGJA (AA vs. GG: adjusted P = 0.001; GA/AA vs. GG: adjusted P = 0.007 and AA vs. GA/GG: adjusted P = 0.001). However, for MTHFR rs4845882 G>A polymorphism, the decreased risk of EGJA was found in two genetic models (AA vs. GG: adjusted P = 0.002 and AA vs. GA/GG: adjusted P = 0.005). In addition, for MTHFR rs3753584 T>C and rs9651118 T>C polymorphisms, a tendency to decreased risk of EGJA was noted. In a subgroup analysis, a significantly decreased risk of EGJA in <64 years subgroup was identified. We found that MTHFR Grs1801133Trs3753584Grs4845882Ars4846048Crs9651118, Grs1801133Crs3753584Ars4845882Ars4846048Trs9651118 and Grs1801133Trs3753584Ars4845882Grs4846048Trs9651118 haplotypes significantly decreased the risk of EGJA (P = 0.002, P < 0.001 and P = 0.038, respectively). In conclusion, our study demonstrates that MTHFR rs1801133 G>A may be associated with the increased risk of EGJA. Meanwhile, MTHFR rs3753584 T>C, rs4845882 G>A and rs9651118 T>C polymorphisms and haplotypes may decrease the risk of EGJA in Eastern Chinese Han population. Further studies with large sample size and detailed gene-environmental data are needed to validate our conclusion. PMID- 29340070 TI - A novel orally available Syk/Src/Jak2 inhibitor, SKLB-850, showed potent anti tumor activities in B cell lymphoma (BCL) models. AB - B cell lymphoma (BCL) is the most frequently diagnosed type of non-Hodgkin lymphoma (NHL), and accounts for about 4% of all cancers in the USA. Kinases spleen tyrosine kinase (Syk), Src, and Janus kinase 2 (JAK2) have been thought as potential targets for the treatment of BCL. We have recently developed a multikinase inhibitor, SKLB-850, which potently inhibits Syk, Src, and JAK2. The aim of this study is to investigate the anti-BCL activities and mechanisms of action of SKLB-850 both in vitro and in vivo. Our results showed that SKLB-850 significantly inhibited BCL cell proliferation, and induced apoptosis of BCL cells. It could considerably decrease the secretion of chemokines CCL3, CCL4, and CXCL12. Oral administration of SKLB-850 considerably suppressed the tumor growth in BCL xenograft models (Ramos and HBL-1) in a dose-dependent manner. Immunohistochemistry of tumor tissues showed that SKLB-850 efficiently inhibited the activation of Syk/ERK, Src/FAK and JAK2/Stat3 pathways. Collectively, SKLB 850 could be a promising agent for the treatment of BCL, hence deserving further study. PMID- 29340071 TI - Hypoxia-inducible factor-1alpha regulates microglial functions affecting neuronal survival in the acute phase of ischemic stroke in mice. AB - Cells universally adapt to ischemic conditions by turning on a transcription factor hypoxia-inducible factor (HIF), in which its role is known to differ widely across many different types of cells. Given that microglia have been reported as an essential mediator of neuroinflammation in many brain diseases, we examined the role of HIF in microglia in the progression of an acute phase of ischemic stroke by challenging our novel strains of myeloid-specific Hif-1alpha or Hif-2alpha knockout (KO) mice created by Cre-loxP system via middle cerebral artery occlusion (MCAO). We observed that Hif-1alpha but not Hif-2alpha KO mice exhibited an improved recovery compared to wild-type (WT) mice determined by behavioral tests. Immunostaining analyses revealed that there were increased numbers of both mature and immature neurons while microglia and apoptotic cells were significantly decreased in the dentate gyrus of Hif-1alpha KO mice following MCAO. By isolating microglia with fluorescence-activated cell sorter, we found that HIF-1alpha-deficient microglia were impaired in phagocytosis, reactive oxygen species (ROS) production, and tumor necrosis factor-alpha (TNF-alpha) secretion. We further observed a significant decrease in the expression of Cd36 and milk fat globule-epidermal growth factor 8 (Mfg-e8) genes, both of which contain hypoxia-responsive element (HRE). Knocking down either of these genes in BV2 microglial cells was sufficient to abrogate HIF-mediated increase in phagocytosis, production of intracellular ROS, or TNF-alpha secretion. Our results therefore suggest that HIF-1alpha in microglia is a novel therapeutic target to protect neuronal survival following an acute phase of ischemic stroke. PMID- 29340072 TI - Hyperbaric oxygen protects against myocardial reperfusion injury via the inhibition of inflammation and the modulation of autophagy. AB - Our previous study demonstrated that hyperbaric oxygen (HBO) preconditioning protected against myocardial ischemia reperfusion injury (MIRI) and improved myocardial infarction. However, HBO's effect on MIRI-induced inflammation and autophagy remains unclear. In this study, we investigate the potential impact and underlying mechanism of HBO preconditioning on an MIRI-induced inflammatory response and autophagy using a ligation of the left anterior descending (LAD) coronary artery rat model. Our results showed that HBO restored myocardial enzyme levels and decreased the apoptosis of cardiomyocytes, which were induced by MIRI. Moreover, HBO significantly suppressed MIRI-induced inflammatory cytokines. This effect was associated with the inhibition of the TLR4-nuclear factor kappa-B (NF kappaB) pathway. Interestingly, lower expression levels of microtubule-associated protein 1 light chain 3B (LC3B) and Beclin-1 were observed in the HBO-treatment group. Furthermore, we observed that HBO reduced excessive autophagy by activating the mammalian target of the rapamycin (mTOR) pathway, as evidenced by higher expression levels of threonine protein kinase (Akt) and phosphorylated mTOR. In conclusion, HBO protected cardiomocytes during MIRI by attenuating inflammation and autophagy. Our results provide a new mechanistic insight into the cardioprotective role of HBO against MIRI. PMID- 29340073 TI - YM155 exerts potent cytotoxic activity against quiescent (G0/G1) multiple myeloma and bortezomib resistant cells via inhibition of survivin and Mcl-1. AB - YM155, a novel small molecule inhibitor of survivin, shows broad anticancer activity. Here, we have focused on the cytotoxic activity of YM155 against multiple myeloma (MM) including cytokinetically quiescent (G0/G1) cells and bortezomib resistant cells. YM155 strongly inhibited the growth of MM cell lines with the IC50 value of below 10 nM. YM155 also showed potent anti-myeloma activity in mouse xenograft model. YM155 suppressed the expression of survivin and rapidly directed Mcl-1 protein for proteasome degradation. YM155 abrogated the interleukin-6-induced STAT3 phosphorylation, subsequently blocked Mcl-1 expression and induced apoptosis in MM cells. Triple-color flow cytometric analysis revealed that YM155 potently induced cell death of MM cells in G0 phase. Quiescent primary MM cells were also sensitive to YM155. We established bortezomib-resistant MM cell line, U266/BTZR1, which possess a point mutation G322A. YM155 exhibited similar cytotoxic potency against U266/BTZR1 compared with parental cells. Interestingly, survivin expression was markedly elevated in U266/BTZR1 cells. Treatment with YM155 significantly down-regulated this increased survivin and Mcl-1 expression in U266/BTZR1 cells. In conclusion, our data indicate that YM155 exhibits potent cytotoxicity against quiescent (G0/G1) MM cells and bortezomib-resistant cells. These unique features of YM155 may be beneficial for the development of new therapeutic strategies to eliminate quiescent MM cells and overcome bortezomib resistance. PMID- 29340074 TI - Identification of novel diagnostic biomarkers for thyroid carcinoma. AB - Thyroid carcinoma (THCA) is the most universal endocrine malignancy worldwide. Unfortunately, a limited number of large-scale analyses have been performed to identify biomarkers for THCA. Here, we conducted a meta-analysis using 505 THCA patients and 59 normal controls from The Cancer Genome Atlas. After identifying differentially expressed long non-coding RNA (lncRNA) and protein coding genes (PCG), we found vast difference in various lncRNA-PCG co-expressed pairs in THCA. A dysregulation network with scale-free topology was constructed. Four molecules (LA16c-380H5.2, RP11-203J24.8, MLF1 and SDC4) could potentially serve as diagnostic biomarkers of THCA with high sensitivity and specificity. We further represent a diagnostic panel with expression cutoff values. Our results demonstrate the potential application of those four molecules as novel independent biomarkers for THCA diagnosis. PMID- 29340075 TI - Extracting microtentacle dynamics of tumor cells in a non-adherent environment. AB - During metastasis, tumor cells dynamically change their cytoskeleton to traverse through a variety of non-adherent microenvironments, including the vasculature or lymphatics. Due to the challenges of imaging drift in non-adhered tumor cells, the dynamic cytoskeletal phenotypes are poorly understood. We present a new approach to analyze the dynamic cytoskeletal phenotypes of non-adhered cells that support microtentacles (McTNs), which are cell surface projections implicated in metastatic reattachment. Combining a recently-developed cell tethering method with a novel image analysis framework allowed McTN attribute extraction. Full cell outlines, number of McTNs, and distance of McTN tips from the cell body boundary were calculated by integrating a rotating anisotropic filtering method for identifying thin features with retinal segmentation and active contour algorithms. Tethered cells behave like free-floating cells; however tethering reduces cell drift and improves the accuracy of McTN measurements. Tethering cells does not significantly alter McTN number, but rather allows better visualization of existing McTNs. In drug treatment experiments, stabilizing tubulin with paclitaxel significantly increases McTN length, while destabilizing tubulin with colchicine significantly decreases McTN length. Finally, we quantify McTN dynamics by computing the time delay autocorrelations of 2 composite phenotype metrics (cumulative McTN tip distance, cell perimeter:cell body ratio). Our automated analysis demonstrates that treatment with paclitaxel increases total McTN amount and colchicine reduces total McTN amount, while paclitaxel also reduces McTN dynamics. This analysis method enables rapid quantitative measurement of tumor cell drug responses within non-adherent microenvironments, using the small numbers of tumor cells that would be available from patient samples. PMID- 29340076 TI - Mitochondrial ROS activates ERK/autophagy pathway as a protected mechanism against deoxypodophyllotoxin-induced apoptosis. AB - Deoxypodophyllotoxin (DPT) is a naturally occurring flavolignan isolated from Anthriscus sylvestris. Recently, it has been reported that DPT inhibits tubulin polymerization and induces G2/M cell cycle arrest followed by apoptosis through multiple cellular processes. Despite these findings, details regarding the cellular and molecular mechanisms underlying the DPT-mediated cell death have been poorly understood. To define a mechanism of DPT-mediated cell death response, we examined whether DPT activates signaling pathways for autophagy and apoptosis. We demonstrated that DPT inhibited cell viability and induced apoptosis in prostate cancer cell lines, as evidenced by a mitochondrial membrane potential and expression of apoptosis-related proteins. Reactive oxygen species (ROS), primarily generated from the mitochondria, play an important role in various cellular responses, such as apoptosis and autophagy. DPT significantly triggered mitochondrial ROS, which were detected by MitoSOX, a selective fluorescent dye of mitochondria-derived ROS. Furthermore, DPT induced autophagy through an up-regulation of autophagic biomarkers, including a conversion of microtubule-associated protein 1 light chain 3 - I (LC3-I) into LC3-II and a formation of acidic vesicular organelles. Moreover, mitochondrial ROS promoted AKT-independent autophagy and ERK signaling. The inhibition of autophagy with 3 methyladenine or LC3 knockdown enhanced DPT-induced apoptosis, suggesting that an autophagy plays a protective role in cell survival against apoptotic prostate cancer cells. Additionally, the results from an in vivo xenograft model confirmed that DPT inhibited tumor growth by regulating the apoptosis- and autophagy related proteins. PMID- 29340077 TI - LRP6 targeting suppresses gastric tumorigenesis via P14ARF-Mdm2-P53-dependent cellular senescence. AB - NLRP6, a member of the Nod-like receptor family, protects against chemically induced intestinal injury and colitis-associated colon cancer. However, the cellular mechanisms involved in this NLRP6-mediated protection remain unclear. Here, we show that NLRP6 was down-regulated in approximately 75% of primary gastric cancer cases and exhibited significant associations with advanced clinical-stage lymph node metastasis and poor overall survival. Functional studies established that ectopic overexpression or down-regulation of NLRP6 inhibited cancer cell proliferation by inducing cell cycle arrest at the G1 phase via P21 and Cyclin D1 both in vitro and in vivo. Activation of the P14ARF-P53 pathway played a crucial role in the observed cellular senescence. We further demonstrated that ectopic overexpression of NLRP6 combined with inactivation of NF-kappaB(p65) and Mdm2 activates P14ARF-P53 to promote the senescence of gastric cancer cells. These findings indicate that NLRP6 functions as a negative regulator of gastric cancer and offer a potential new option for preventing gastric cancer. PMID- 29340078 TI - Differential gene expression profiles between two subtypes of ischemic stroke with blood stasis syndromes. AB - Ischemic stroke is a cerebrovascular thrombotic disease with high morbidity and mortality. Qi deficiency blood stasis (QDBS) and Yin deficiency blood stasis (YDBS) are the two major subtypes of ischemic stroke according to the theories of traditional Chinese medicine. This study was conducted to distinguish these two syndromes at transcriptomics level and explore the underlying mechanisms. Male rats were randomly divided into three groups: sham group, QDBS/MCAO group and YDBS/MCAO group. Morphological changes were assessed after 24 h of reperfusion. Microarray analysis with circulating mRNA was then performed to identify differential gene expression profile, gene ontology and pathway enrichment analyses were carried out to predict the gene function, gene co-expression and pathway networks were constructed to identify the hub biomarkers, which were further validated by western blotting and Tunel staining analysis. Three subsets of dysregulated genes were acquired, including 445 QDBS-specific genes, 490 YDBS specific genes and 1676 blood stasis common genes. Our work reveals for the first time that T cell receptor, MAPK and apoptosis pathway were identified as the hub pathways based on the pathway networks, while Nfkappab1, Egfr and Casp3 were recognized as the hub genes by co-expression networks. This research helps contribute to a clearer understanding of the pathological characteristics of ischemic stroke with QDBS and YDBS syndrome, the proposed biomarkers might provide insight into the accurate diagnose and proper treatment for ischemic stroke with blood stasis syndrome. PMID- 29340079 TI - High expression of angiogenic factor AGGF1 is an independent prognostic factor for hepatocellular carcinoma. AB - Background: Angiogenesis plays a critical role in tumor growth and metastasis. Angiogenic factor with G patch and FHA domains 1 (AGGF1) has been recently identified as a novel initiator of angiogenesis. However, the function and the prognostic values of AGGF1 in hepatocellular carcinoma remain poorly understood. Our aim is to provide more information to assist design the angiogenesis therapy that targets AGGF1 in HCC. Results: AGGF1-positive frequency in HCC tissues was significantly higher than in peritumor tissues. The high expression of AGGF1 expression in HCC tissue was well associated with the increased expression of VEGF and the high microvessel density (MVD). AGGF1 expression predicts a poor prognosis and AGGF1 was an independent prognostic factor for DFS. Methods: The expression levels of AGGF1, vascular endothelial growth factor (VEGF) and microvessel density (MVD) were identified by immunohistochemistry in 79 HCC tumor tissues and 24 corresponding peritumor tissues. The expression level of AGGF1 and MVD were quantified by counting the positively stained endothelial cells in the HCC and the peritumor tissue on the immunohistochemically stained tissue slides. The prognostic value of AGGF1 was evaluated by survival analysis. Conclusions: Our study shows that AGGF1 is identified as the independent prognostic factor for the disease-free survival (DFS) of patients after the surgical resection. contribute to tumor angiogenesis in HCC, which indicates that AGGF1 may be a new potential therapeutic target for anti-angiogenesis treatment for patients with HCC. PMID- 29340080 TI - Inhibition of tumor necrosis factor signaling attenuates renal immune cell infiltration in experimental membranous nephropathy. AB - Idiopathic membranous nephropathy (MN) is an autoimmune-mediated glomerulonephritis and the most common cause of idiopathic nephrotic syndrome in adult humans. A tumor necrosis factor alpha (TNF-alpha)-mediated inflammatory response via TNF receptor 1 (TNFR1) and TNFR2 has been proposed as a pathogenic factor. In this study, we assessed the therapeutic response to blocking TNF signaling in experimental MN. Murine MN was induced experimentally by cationic bovine serum albumin (cBSA); phosphate-buffered saline was used in control mice. In MN mice, TNF was inhibited by etanercept blocking of TNFR1/TNFR2 or the preligand assembly domain fusion protein (PLAD.Fc), a small fusion protein that can preferentially block TNFR1 signaling. Disease severity and possible mechanisms were assessed by analyzing the metabolic and histopathology profiles, lymphocyte subsets, immunoglobulin production, oxidative stress, and apoptosis. cBSA-induced MN mice exhibited typical nephrotic syndrome and renal histopathology. MN mice given etanercept or PLAD.Fc did not exhibit significant reduction of proteinuria, amelioration of glomerular lesions, or attenuation of immune complex deposition. Immune cell subsets, serum immunoglobulin levels, production of reactive oxygen species, and cell apoptosis in the kidney were not altered by TNF inhibition. By contrast, MN mice receiving etanercept or PLAD.Fc exhibited significantly decreased infiltration of immune cells into the kidney. These results show that the therapeutic effects of blocking TNFR1 and/or TNFR2 signaling in experimental MN are not clinically effective. However, TNF signaling inhibition significantly attenuated renal immune cell infiltration in experimental MN. PMID- 29340081 TI - PCPA protects against monocrotaline-induced pulmonary arterial remodeling in rats: potential roles of connective tissue growth factor. AB - The purpose of this study was to investigate the mechanism of monocrotaline (MCT) induced pulmonary artery hypertension (PAH) and determine whether 4-chloro-DL phenylalanine (PCPA) could inhibit pulmonary arterial remodeling associated with connective tissue growth factor (CTGF) expression and downstream signal pathway. MCT was administered to forty Sprague Dawley rats to establish the PAH model. PCPA was administered at doses of 50 and 100 mg/kg once daily for 3 weeks via intraperitoneal injection. On day 22, the pulmonary arterial pressure (PAP), right ventricle hypertrophy index (RVI) and pulmonary artery morphology were assessed and the serotonin receptor-1B (SR-1B), CTGF, p-ERK/ERK were measured by western blot or immunohistochemistry. The concentration of serotonin in plasma was checked by ELISA. Apoptosis and apoptosis-related indexes were detected by TUNEL and western blot. In the MCT-induced PAH models, the PAP, RVI, pulmonary vascular remodeling, SR-1B index, CTGF index, anti-apoptotic factors bcl-xl and bcl-2, serotonin concentration in plasma were all increased and the pro-apoptotic factor caspase-3 was reduced. PCPA significantly ameliorated pulmonary arterial remodeling induced by MCT, and this action was associated with accelerated apoptosis and down-regulation of CTGF, SR-1B and p-ERK/ERK. The present study suggests that PCPA protects against the pathogenesis of PAH by suppressing remodeling and inducing apoptosis, which are likely associated with CTGF and downstream ERK signaling pathway in rats. PMID- 29340082 TI - Reciprocal sensitivity of diffuse large B-cell lymphoma cells to Bcl-2 inhibitors BIRD-2 versus venetoclax. AB - Bcl-2 is often upregulated in cancers to neutralize the BH3-only protein Bim at the mitochondria. BH3 mimetics (e.g. ABT-199 (venetoclax)) kill cancer cells by targeting Bcl-2's hydrophobic cleft and disrupting Bcl-2/Bim complexes. Some cancers with elevated Bcl-2 display poor responses towards BH3 mimetics, suggesting an additional function for anti-apoptotic Bcl-2 in these cancers. Indeed, Bcl-2 via its BH4 domain prevents cytotoxic Ca2+ release from the endoplasmic reticulum (ER) by directly inhibiting the inositol 1,4,5 trisphosphate receptor (IP3R). The cell-permeable Bcl-2/IP3R disruptor-2 (BIRD-2) peptide can kill these Bcl-2-dependent cancers by targeting Bcl-2's BH4 domain, unleashing pro-apoptotic Ca2+-release events. We compared eight "primed to death" diffuse large B-cell lymphoma cell lines (DLBCL) for their apoptotic sensitivity towards BIRD-2 and venetoclax. By determining their IC50 using cytometric cell death analysis, we discovered a reciprocal sensitivity towards venetoclax versus BIRD-2. Using immunoblotting, we quantified the expression levels of IP3R2 and Bim in DLBCL cell lysates, revealing that BIRD-2 sensitivity correlated with IP3R2 levels but not with Bim levels. Moreover, the requirement of intracellular Ca2+ for BIRD-2- versus venetoclax-induced cell death was different. Indeed, BAPTA-AM suppressed BIRD-2-induced cell death, but promoted venetoclax-induced cell death in DLBCL cells. Finally, compared to single-agent treatments, combining BIRD-2 with venetoclax synergistically enhanced cell-death induction, correlating with a Ca2+-dependent upregulation of Bim after BIRD-2 treatment. Our findings suggest that some cancer cells require Bcl-2 proteins at the mitochondria, preventing Bax activation via its hydrophobic cleft, while others require Bcl-2 proteins at the ER, preventing cytotoxic Ca2+-signaling events via its BH4 domain. PMID- 29340083 TI - Next-generation sequencing-based microRNA profiling of mice testis subjected to transient heat stress. AB - This study aimed to investigate the role of microRNA (miRNA) in heat stress induced spermatogenic impairment. Testes from 15 adult ICR mice subjected to testicular hyperthermia at 43 degrees C for 30 min and from 15 control mice were collected and pooled into 3 samples. Isolated RNA from these samples was subjected to small RNA high-throughput sequencing, and differentially expressed miRNAs were identified and validated using RT-PCR. The identified miRNAs were further subjected to Gene Ontology and KEGG analyses, which revealed significant enrichment for pathways potentially involved in heat stress-induced spermatogenic impairment. Additionally, a correlation analysis of the relative levels of validated miRNAs with germ cell apoptosis was performed. Of the 11 miRNAs identified as differentially expressed, 8 were validated as consistent with sequencing data. Further analyses suggested that the target genes of those miRNAs were involved in various pathways (e.g., ribosomal, HIF-1, MAPK) that may be critical to heat stress-induced testicular damage. Some identified miRNAs, including miR-449a-3p, miR-92a-1-5p, miR-423-3p, and miR-128-3p, correlated closely with germ cell apoptosis. The study results reveal a detailed miRNA profile of heat stress-induced testicular damage and highlight new and potentially important candidate targets in the process of male infertility. PMID- 29340084 TI - CRISPR-Cas9 HDR system enhances AQP1 gene expression. AB - Ionizing radiation (IR) isthe primarytherapeutic tool to treat patients with cancerous lesions located in the head and neck. In many patients, IR results in irreversible and severe salivary gland dysfunction or xerostomia. Currently there are no effective treatment options to reduce the effects of xerostomia. More recently, salivary gland gene therapy utilizing the water-specific protein aquaporin 1 (AQP1) has been of great interest to potentially correct salivary dysfunction. In this study, we used CRISPR-Cas9 gene editing along with the endogenous promoter of AQP1 within theHEK293 and MDCK cell lines. The successful integration of the cytomegalovirus (CMV) promoterresultedin a significant increase of AQP1 gene transcription and translation. Additionalfunctional experiments involvingthe MDCK cell line confirmedthat over-expressed AQP1increasedtransmembrane fluid flux indicative of increased intracellular fluid flux. The off-target effect of designed guided RNA sequence was analyzed and demonstrateda high specificity for the Cas9 cleavage. Considering the development of new methods for robust DNA knock-in, our results suggest that endogenous promoter replacement may be a potential treatment forsalivary gland dysfunction. PMID- 29340085 TI - 6-(Methylsulfonyl) hexyl isothiocyanate as potential chemopreventive agent: molecular and cellular profile in leukaemia cell lines. AB - Numerous laboratory and epidemiological studies show that the risk of developing several types of cancer can be reduced with the employment of natural substances that act with multiple mechanisms. In this context, an important role is played by the isothiocyanates. Recently, 6-(methylsulfonyl)hexyl isothiocyanate (6 MITC), present in the root of Wasabia Japonica, has stimulated the interest of researchers as a chemopreventive agent. In this particular study we have focused on evaluating 6-MITC's in vitro cytotoxic, cytostatic and cytodifferentiating activities, as well as its pro-apoptotic potential. These effects were investigated by way of flow cytometric analysis of Jurkat and HL-60 cells as well as of healthy lymphocytes extracted from the blood of AVIS donors, in order to verify a potential selectivity of action. The results demonstrate that 6-MITC exerts a stronger cytotoxic effect on tumour cells than on healthy cells. The apoptosis induction exerted by 6-MITC on transformed cells is triggered by an extrinsic pathway, as demonstrated by the statistically significant increase in the percentage of cells with activated caspase-8. It was also observed that 6 MITC is able to limit tumour growth by slowing down and blocking the cell cycle of Jurkat and HL-60 cells respectively, in a dose- and time-related manner, while exerting no activity of any kind on the replication of healthy cells. Finally, by measuring the expression levels of CD-14 and CD-15, 6-MITC showed the ability to induce cytodifferentiation of HL-60 cells into macrophage and granulocytic phenotypes. PMID- 29340086 TI - Up-regulation of lncRNA SNHG1 indicates poor prognosis and promotes cell proliferation and metastasis of colorectal cancer by activation of the Wnt/beta catenin signaling pathway. AB - Recently, the lncRNA small nucleolar RNA host gene (SNHG1) has been exhibited to be upregulated, which plays a crucial role in the development and prognosis of several cancers. However, the role of the biology and clinical significance of SNHG1 in the tumorigenesis of colorectal cancer (CRC) has rarely been reported. In this work, we firstly found that SNHG1 expression levels were upregulated aberrantly in colorectal cancer tissues and colorectal cancer cell lines. By Kaplan-Meier survival analysis, patients with high SNHG1 expression level had poorer overall survival (OS) and progression-free survival (PFS) than those with low SNHG1 expression. In multivariate analysis, increased SNHG1 expression was proved to be an independent unfavorable prognostic indicator for CRC. In vitro experiments revealed that SNHG1 silencing inhibited the growth and metastasis and induced apoptosis of CRC cell lines. Finally, we found that SNHG1 may induce the activation of the WNT/beta-catenin pathway through regulating beta-catenin expression and transcription factor-4 (TCF-4), cyclin D1 and MMP-9. Altogether, our findings demonstrated that lncRNA SNHG1, was high expressed in colorectal cancer tissues and may serve as a tumor oncogene through regulating WNT/beta catenin signal pathway, which provided a candidate diagnostic biomarker and a promising therapeutic target for patients with CRC. PMID- 29340087 TI - Identification of antipsychotic drug fluspirilene as a potential anti-glioma stem cell drug. AB - Glioma stem cell (GSC)-targeted therapy is expected to be one of the most innovative approaches to treat patients with glioblastoma (GBM). A number of the drugs that restrain the signaling pathway essential for GSC maintenance have been under clinical trials. Here, we identified fluspirilene, a traditional antipsychotic drug, as a GSC-targeting agent, selected from thousands of existing drugs, and investigated its therapeutic effects against GBM with the purpose of drug repositioning. To develop novel therapeutics targeting GSCs, we initially screened drug libraries for small-molecule compounds showing a greater efficacy, compared to that of controls, in inhibiting the proliferation and survival of different GSC lines using cell proliferation assay. Drugs already reported to show therapeutic effects against GBM or those under clinical trials were excluded from subsequent screening. Finally, we found three drugs showing remarkable antiproliferative effects on GSCs at low concentrations and investigated their therapeutic effects on GSCs, glioma cell lines, and in a GBM mouse model. Of the three compounds, fluspirilene demonstrated a significant inhibitory effect on the proliferation and invasion of glioma cells as well as in the model mice treated with the drug. These effects were associated with the inactivation of the signal transducer and activator of transcription 3 (STAT3). Redeveloping of fluspirilene is a promising approach for the treatment of GBM. PMID- 29340088 TI - Identification of bladder cancer prognostic biomarkers using an ageing gene related competitive endogenous RNA network. AB - Competitive endogenous RNAs (ceRNAs) are a newly proposed RNA interaction mechanism that has been associated with the initiation and progression of various cancers. In this study, we constructed an ageing gene related ceRNA network (AgeingCeNet) in bladder cancer. Network analysis revealed that ageing gene ceRNAs have a larger degree and closeness centrality than ageing genes themselves. Notably, the difference of betweenness centrality of ageing genes and their ceRNAs is not significant, suggesting that the ceRNAs of ageing genes and ageing genes themselves both play important communication roles in AgeingCeNet. KEGG pathway enrichment analysis for genes in AgeingCeNet revealed that AgeingCeNet genes are enriched in cancer pathways and several cancer related singaling pathways. We also identified 37 core modules from AgeingCeNet using CFinder software. Next, we identified 2 potential prognostic modules, named K11M14 and K13M4, whose prognostic ability is better than that of age and gender. Finally, we identified microRNAs (miRNAs) regulating the two modules, which include miR-15b-5p, miR-195-5p, miR-30 family members, and several other cancer related miRNAs. Our study demonstrated that constructing an ageing gene related ceRNA network is a feasible strategy to explore the mechanism of initiation and progression of bladder cancer, which might benefit the treatment of this disease. PMID- 29340089 TI - LncRNA RNCR3 promotes Chop expression by sponging miR-185-5p during MDSC differentiation. AB - Myeloid-derived suppressor cells (MDSCs) play a critical role in regulating immune responses in cancer and other pathological conditions. Mechanism(s) regulating MDSC differentiation and function is not completely clear, especially epigenetic regulation. In this study, we found that MDSCs express retinal non coding RNA3 (RNCR3), and the expression in MDSCs is upregulated by inflammatory and tumor associated factors. RNCR3 may function as a competing endogenous RNA (ceRNA) to promote Chop expression by sponging miR-185-5p during MDSC differentiation. RNCR3 knockdown suppressed differentiation and function of MDSCs in vitro and in vivo. Quantitative RT-PCR showed that RNCR3 was negatively regulated by miR-185-5p in MDSCs. MiR-185-5p affected the expansion of MDSCs and reversed the effect of RNCR3 on MDSC differentiation and function through directly targeting Chop. Thus, our results suggest a RNCR3/miR-185-5p/Chop autologously strengthening network to promote MDSC differentiation and suppressive function in response to extracellular inflammatory and tumor associated signals. PMID- 29340090 TI - High glucose enhances the metastatic potential of tongue squamous cell carcinoma via the PKM2 pathway. AB - Previous evidence has indicated an increased cancer risk in individuals with diabetes mellitus (DM). The aim of this study was to investigate the relationship between DM (high glucose) and tongue squamous cell carcinoma (TSCC) and how high glucose mediated the metastatic potential of TSCC. The relationship between DM and TSCC was assessed in a retrospective study. The role and its mechanism of high glucose on the proliferation, metastatic potential of TSCC were investigated in vitro and in vivo. The prevalence rate of DM in patients with TSCC was 12.84%, which was significantly higher than that (9.7%) in the general population in China. Although no significant difference was observed in the overall survival (OS) rate, TSCC patients with DM have a 1.38-fold increase in relative risk affecting 5-year OS compared to patients without DM. High glucose enhanced the TSCC cell proliferation, migration, invasion and upregulated PKM2 (pyruvate kinase M2) expression. Whereas, these effect was abolished after knockdown of PKM2 in TSCC cells. High glucose promoted tumour growth and lung metastasis of TSCC in a DM animal model. Our results confirm DM as a risk factor for the development of TSCC. High glucose enhances the metastatic potential of TSCC through stimulation of the PKM2 pathway. PMID- 29340091 TI - Fatty acid binding protein 4 enhances prostate cancer progression by upregulating matrix metalloproteinases and stromal cell cytokine production. AB - Fatty acid binding protein 4 (FABP4) is an abundant protein in adipocytes, and its production is influenced by high-fat diet (HFD) or obesity. The prostate stromal microenvironment induces proinflammatory cytokine production, which is key for the development and progression of prostate cancer (PCa). Here, we show that high FABP4 expression and its secretion by PCa cells directly stimulated PCa cell invasiveness by upregulating matrix metalloproteinases through phosphatidylinositol 3-kinase and mitogen-activated protein kinase signaling pathways. In addition, prostate stromal cells augmented PCa cell invasiveness by secreting interleukin-8 and -6 in response to FABP4. This was abrogated by the FABP4 specific inhibitor, BMS309403. Furthermore, a mouse xenograft experiment showed HFD enhanced PCa metastasis and invasiveness by the upregulation of FABP4 and interleukin-8. Clinically, the serum level of FABP4 was significantly associated with an aggressive type of PCa rather than obesity. Taken together, FABP4 may enhance PCa progression and invasiveness by upregulating matrix metalloproteinases and cytokine production in the PCa stromal microenvironment, especially under HFD or obesity. PMID- 29340092 TI - First-line dose-dense chemotherapy with docetaxel, cisplatin, folinic acid and 5 fluorouracil (DCF) plus panitumumab in patients with locally advanced or metastatic cancer of the stomach or gastroesophageal junction: final results and biomarker analysis from an Italian oncology group for clinical research (GOIRC) phase II study. AB - Background: Survival for patients with advanced gastroesophageal cancer (AGC) using standard treatment regimens is poor. EGFR overexpression is common in AGC and associated with poor prognosis. We hypothesized that increasing the dose intensity of chemotherapy and adding panitumumab could improve efficacy. Methods: HER2 negative, PS 0-1 patients, received up to 4 cycles of panitumumab 6 mg/kg d 1, docetaxel 60 mg/m2 d 1, cisplatin 50 mg/m2 d 1, l-folinic acid 100 mg/m2 d 1 2, followed by 5-FU 400 mg/m2 bolus d 1-2, and then 600 mg/m2 as a 22 h c.i. on d 1-2, q15 d, plus pegfilgrastim 6 mg on d 3. Patients with disease control after 4 cycles received panitumumab until progression. Results: From 05/2010 to 01/2014, 52 patients (75% male; median age 64.5 y; metastatic 90%, locally advanced 10%; 96% adenocarcinoma; 25% GEJ) were recruited. Three CR, 29 PR, 10 SD and 8 PD were observed, for an ORR by ITT (primary endpoint) of 62% (95% CI, 48%-75%) and a DCR of 81%. Median TTP was 4.9 months (95% CI, 4.2-7.0) and mOS 10 months (95% CI, 8.2- 13.5). Most frequent G3-4 toxicities: leucopenia (29%), asthenia (27%), skin rash (25%), neutropenia (19%), anorexia (17%), febrile neutropenia (13%), and diarrhea (15%). EGFR expression tested both with dd-PCR and FISH was not associated with any significant clinical benefit from treatment. Conclusions: Dose-dense DCF plus panitumumab is an active regimen. However, the toxicity profile of this limits further development. Further research on predictive biomarkers for treatment efficacy in AGC is required.Clinical trial information: 2009-016962-10. PMID- 29340093 TI - Leucine mediates autophagosome-lysosome fusion and improves sperm motility by activating the PI3K/Akt pathway. AB - Amino acid supplementation is an efficient and effective strategy to increase sperm quality. In our research, a comparative study was conducted to screen free amino acids to improve sperm motility, and we found that leucine was the most efficient one. Leucine treatment increases sperm motility depending on the activation of PI3K/Akt signaling pathway, while the chemical inhibitor of PI3K/Akt signal could reduce the amount of pAkt activated by leucine treatment. Moreover, leucine treatment improved the expression of P62 and LC3-II, substantially suppressed the autophagy process in zebrafish testis. In vitro studies showed that leucine could reduce the fusion of autophagosome and lysosome that was indicated by the co-localization of EGFP-LC3 and lysosome marker. Two chemical modulators of autophagy, such as LY294002 (the inhibitor of PI3K/Akt signal) and chloroquine were administered to investigate the process of autophagy on zebrafish sperm motility. LY294002 inhibited autophagosome formation to reduced sperm motility, while chloroquine inhibited the fusion of autophagosome and lysosome to improve sperm motility. Our data suggest that short-term treatment with leucine could increase zebrafish sperm motility by affecting the autophagy and inhibiting the fusion of autophagosome and lysosomes, depending on the activation of PI3K/Akt signaling pathway. PMID- 29340094 TI - Can urologists introduce the concept of "oligometastasis" for metastatic bladder cancer after total cystectomy? AB - We investigated whether the concept of oligometastasis may be introduced to the clinical management of metastatic bladder cancer patients. Our study population comprised 128 patients diagnosed with metastatic bladder cancer after total cystectomy at our 6 institutions between 2004 and 2014. We extracted independent predictors for identifying a favorable. Occurrence that fulfilled all 4 criteria which were independently associated with cancer-specific death was defined as oligometastasis: a solitary metastatic organ; number of metastatic lesions of 3 or less; the largest diameter of metastatic foci of 5cm or less; and no liver metastasis. We evaluated differences in clinical outcomes between patients with oligometastasis (oligometastasis group) and those without oligometastasis (non oligometastasis group). Overall, there were 43 patients in the oligometastasis group. The 2-year cancer-specific survival rate in the oligometastasis group was 53.3%, which was significantly higher than that in the non-oligometastasis group (16.1%, p<0.001). A multivariate analysis revealed that non-oligometastasis (p<0.001), not performing salvage chemotherapy (p<0.001), and not performing metastatectomy (p=0.028) were independent risk factors for cancer-specific death. In the subgroup of 83 patients who received salvage chemotherapy, 30 were in the oligometastasis group. The 2-year cancer-specific survival rate in the oligometastasis group was 55.0%, which was significantly higher than that in the non-oligometastasis group (22.0%, p=0.005). Non-oligometastasis (p=0.009) was the only independent risk factor for cancer-specific death. We presented that urothelial carcinoma with oligometastasis had a favorable prognosis and responded to systemic chemotherapy. Oligometastasis may be treated as a separate entity in the field of metastatic urothelial carcinoma. PMID- 29340095 TI - Tumoral immune-infiltrate (IF), PD-L1 expression and role of CD8/TIA-1 lymphocytes in localized osteosarcoma patients treated within protocol ISG-OS1. AB - Background: We hypothesized that immune-infiltrates were associated with superior survival, and examined a primary osteosarcoma tissue microarrays (TMAs) to test this hypothesis. Methods: 129 patients (pts) with localized osteosarcoma treated within protocol ISG-OS1 were included in the study. Clinical characteristics, expression of CD8, CD3, FOXP3, CD20, CD68/CD163 (tumor associated macrophage, TAM), Tia-1 (cytotoxic T cell), CD303 (plasmacytoid dendritic cells: pDC), Arginase-1 (myeloid derived suppressor cells: MDSC), PD-1 on immune-cells (IC), and PD-L1 on tumoral cells (TC) and IC were analysed and correlated with outcome. Results: Most of the cases presented tumor infiltrating lymphocytes (TILs) (CD3+ 90%; CD8+ 86%). Tia-1 was detected in 73% of the samples. PD-L1 expression was found in 14% patients in IC and 0% in TC; 22% showed PD-1 expression in IC.With a median follow-up of 8 years (range 1-13), the 5-year overall survival (5-year OS) was 74% (95% CI 64-85). Univariate analysis showed better 5-year OS for: a) pts with a good histologic response to neoadjuvant chemotherapy (p = 0.0001); b) pts with CD8/Tia1 tumoral infiltrates (p = 0.002); c) pts with normal alkaline phosphatas (sALP) (p = 0.04). After multivariate analysis, histologic response (p = 0.007) and CD8/Tia1 infiltration (p = 0.01) were independently correlated with survival. In the subset of pts with CD8+ infiltrate, worse (p 0.02) OS was observed for PD-L1(IC)+ cases. Conclusions: Our findings support the hypothesis that CD8/Tia1 infiltrate in tumor microenvironment at diagnosis confers superior survival for pts with localized osteosarcoma, while PD-L1 expression is associated with worse survival. PMID- 29340097 TI - S-adenosyl-methionine (SAM) alters the transcriptome and methylome and specifically blocks growth and invasiveness of liver cancer cells. AB - S-adenosyl methionine (SAM) is a ubiquitous methyl donor that was reported to have chemo- protective activity against liver cancer, however the molecular footprint of SAM is unknown. We show here that SAM selectively inhibits growth, transformation and invasiveness of hepatocellular carcinoma cell lines but not normal primary liver cells. Analysis of the transcriptome of SAM treated and untreated liver cancer cell lines HepG2 and SKhep1 and primary liver cells reveals pathways involved in cancer and metastasis that are upregulated in cancer cells and are downregulated by SAM. Analysis of the methylome using bisulfite mapping of captured promoters and enhancers reveals that SAM hyper-methylates and downregulates genes in pathways of growth and metastasis that are upregulated in liver cancer cells. Depletion of two SAM downregulated genes STMN1 and TAF15 reduces cellular transformation and invasiveness, providing evidence that SAM targets are genes important for cancer growth and invasiveness. Taken together these data provide a molecular rationale for SAM as an anticancer agent. PMID- 29340098 TI - ICAM-1 regulates macrophage polarization by suppressing MCP-1 expression via miR 124 upregulation. AB - Intercellular adhesion molecule-1 is the adhesion molecule mediating leukocyte firm adhesion to endothelial cells, plays a critical role in subsequent leukocyte transmigration. ICAM-1 is also expressed in other cells including macrophages; however, the role of this adhesion molecule in mediating macrophage functions remains enigmatic. We report that ICAM-1 regulates macrophage polarization by positively modulating miR-124 expression. We found higher expression levels of monocyte chemotactic protein-1 in lungs of mice lacking ICAM-1. Consistent with this result, siRNA mediated depletion of ICAM-1 in macrophage resulted in increased expression levels of MCP-1. Moreover, ICAM-1 controlled miR-124 expression and downregulated MCP-1 mRNA and protein expression by binding of miR 124 to MCP-1 3' untranslated region. ICAM-1 also induced the transcription factor Sp1 expression, which is important for miR-124 expressing in macrophages. Furthermore, ICAM-1 depletion led to M1 macrophage polarization, in contrast, miR 124 mimics promoted M2 macrophage polarization. Exogenous administration of miR 124 mimics into the lungs prevented lipopolysaccharide-induced myeloperoxidase activity in vivo, suggesting that miR-124 is important for dampening acute lung injury. These results collectively show that adhesion molecule ICAM-1 downregulates MCP-1 expression by controlling Sp1 mediated miR-124 levels, which in turn regulate M2 macrophage polarization. Targeting ICAM-1 and downstream miR 124 may present a new therapeutic strategy for acute lung injury. PMID- 29340096 TI - CRISPR/Cas9-mediated reversibly immortalized mouse bone marrow stromal stem cells (BMSCs) retain multipotent features of mesenchymal stem cells (MSCs). AB - Mesenchymal stem cells (MSCs) are multipotent non-hematopoietic progenitor cells that can undergo self-renewal and differentiate into multi-lineages. Bone marrow stromal stem cells (BMSCs) represent one of the most commonly-used MSCs. In order to overcome the technical challenge of maintaining primary BMSCs in long-term culture, here we seek to establish reversibly immortalized mouse BMSCs (imBMSCs). By exploiting CRISPR/Cas9-based homology-directed-repair (HDR) mechanism, we target SV40T to mouse Rosa26 locus and efficiently immortalize mouse BMSCs (i.e., imBMSCs). We also immortalize BMSCs with retroviral vector SSR #41 and establish imBMSC41 as a control line. Both imBMSCs and imBMSC41 exhibit long-term proliferative capability although imBMSC41 cells have a higher proliferation rate. SV40T mRNA expression is 130% higher in imBMSC41 than that in imBMSCs. However, FLP expression leads to 86% reduction of SV40T expression in imBMSCs, compared with 63% in imBMSC41 cells. Quantitative genomic PCR analysis indicates that the average copy number of SV40T and hygromycin is 1.05 for imBMSCs and 2.07 for imBMSC41, respectively. Moreover, FLP expression removes 92% of SV40T in imBMSCs at the genome DNA level, compared with 58% of that in imBMSC41 cells, indicating CRISPR/Cas9 HDR-mediated immortalization of BMSCs can be more effectively reversed than that of retrovirus-mediated random integrations. Nonetheless, both imBMSCs and imBMSC41 lines express MSC markers and are highly responsive to BMP9-induced osteogenic, chondrogenic and adipogenic differentiation in vitro and in vivo. Thus, the engineered imBMSCs can be used as a promising alternative source of primary MSCs for basic and translational research in the fields of MSC biology and regenerative medicine. PMID- 29340099 TI - A plasma miRNA signature for lung cancer early detection. AB - The early detection of lung cancer continues to be a major clinical challenge. Using whole-transcriptome next-generation sequencing to analyze lung tumor and the matched noncancerous tissues, we previously identified 54 lung cancer associated microRNAs (miRNAs). The objective of this study was to investigate whether the miRNAs could be used as plasma biomarkers for lung cancer. We determined expressions of the lung tumor-miRNAs in plasma of a development cohort of 180 subjects by using reverse transcription PCR to develop biomarkers. The development cohort included 92 lung cancer patients and 88 cancer-free smokers. We validated the biomarkers in a validation cohort of 64 individuals comprising 34 lung cancer patients and 30 cancer-free smokers. Of the 54 miRNAs, 30 displayed a significant different expression level in plasma of the lung cancer patients vs. cancer-free controls (all P < 0.05). A plasma miRNA signature (miRs 126, 145, 210, and 205-5p) with the best prediction was developed, producing 91.5% sensitivity and 96.2% specificity for lung cancer detection. Diagnostic performance of the plasma miRNA signature had no association with stage and histological type of lung tumor, and patients' age, sex, and ethnicity (all p > 0.05). The plasma miRNA signature was reproducibly confirmed in the validation cohort. The plasma miRNA signature may provide a blood-based assay for diagnosing lung cancer at the early stage, and thereby reduce the associated mortality and cost. PMID- 29340100 TI - The inhibition of cordycepin on cancer stemness in TGF-beta induced chemo resistant ovarian cancer cell. AB - Chemotherapy is one of the main approach for ovarian cancer. Cancer stem cells (CSCs) escape chemotherapy and lead to chemoresistance. We previously demonstrated that cordycepin (Cd) inhibited metastasis in human ovarian carcinoma cells, the aim of this study is to investigate the effects of Cd on ovarian cancer stemness. TGF-beta was used to induce chemoresistance of chemotherapeutic agent cisplatin in SKOV-3 ovarian cancer cells. After treating with 100 MUM of Cd, cell viability, the percentage of cancer stem cells, and the levels of matrix metalloproteinases (MMPs) were decreased in TGF-beta-induced SKOV-3 cells. Treatment of Cd recovered E-cadherin levels and inhibited vimentin levels while TGF-beta treatment significantly increased the expression of vimentin and PGC 1alpha, and decreased E-cadherin levels in SKOV-3 cells, indicating that the action of Cd on cancer stemness may contribute to the regulation of epithelial mesenchymal transition (EMT). Cd efficiently attenuated chemoresistance caused by TGF-beta in SKOV-3 cancer stem cells to promote the cytotoxicity of cisplatin. PMID- 29340101 TI - IGF-1 induces the epithelial-mesenchymal transition via Stat5 in hepatocellular carcinoma. AB - It has been reported that the epithelial-mesenchymal transition (EMT) plays an important role in hepatocellular carcinoma (HCC). However, the relationship between the insulin-like growth factor-1 (IGF-1) and EMT of HCC was not fully elucidated. In the present work, we found that the expression of N-cadherin, Vimentin, Snail1, Snail2, and Twist1 was positively associated with IGF-1R expression, while E-cadherin expression was negatively associated with IGF-1 expression in human HCC samples. Furthermore, we observed that IGF-1 up-regulated the expression of N-cadherin, Vimentin, Snail1, Snail2 and Twist1, and down regulated the expression of E-cadherin. In addition, Stat5 was induced in IGF-1 treated HepG2 and Hep3B cells, and Stat5 inhibition or siRNA significantly affected IGF-1-induced EMT in HepG2 and Hep3B cells. In conclusion, IGF-1 induces EMT of HCC via Stat5 signaling pathway. Thus, IGF-1/Stat5 can be recommended as a potential and novel therapeutic strategy for HCC patients. PMID- 29340102 TI - The impact of antibiotic usage on the efficacy of chemoimmunotherapy is contingent on the source of tumor-reactive T cells. AB - In recent years the combined use of chemotherapy and immunotherapy, collectively termed chemoimmunotherapy, has emerged as a promising treatment option for patients with cancer. Antibiotics are commonly used to reduce infection-related complications in patients undergoing chemotherapy. Intriguingly, accumulating evidence has implicated gut microbiota as a critical determinant of host antitumor immune responses, raising the question as to whether the use of broad spectrum antibiotics would invariably diminish tumor response to chemoimmunotherapies. We investigated the impact of antibiotics on the therapeutic outcomes of cyclophosphamide (CTX) chemotherapy and adoptive T-cell therapy (ACT) where CTX was used as the host-conditioning regimen in mice. We show that antibiotic prophylaxis dampened the endogenous T cell responses elicited by CTX, and reduced the efficacy of CTX against B-cell lymphoma. In the ACT setting, antibiotics administration impaired the therapeutic effects of adoptively transferred tumor-specific CD4+ T cells in mice with implanted colorectal tumors. In contrast, long-term antibiotic exposure did not affect the efficacy of ACT using CD19-targeting chimeric antigen receptor (CAR) T cells in mice with systemic B-cell lymphoma, although it correlated with prolonged CAR expression and sustained B-cell aplasia. Our study demonstrates that chemoimmunotherapies may have variable reliance on intestinal microbiota for T cell activation and function, and thus have different sensitivities to antibiotic prophylaxis. These findings may have implications for the judicial use of antibiotics in cancer patients receiving chemoimmunotherapies. PMID- 29340103 TI - Anti-neoplastic drugs increase caveolin-1-dependent migration, invasion and metastasis of cancer cells. AB - Expression of the scaffolding protein Caveolin-1 (CAV1) enhances migration and invasion of metastatic cancer cells. Yet, CAV1 also functions as a tumor suppressor in early stages of cancer, where expression is suppressed by epigenetic mechanisms. Thus, we sought to identify stimuli/mechanisms that revert epigenetic CAV1 silencing in cancer cells and evaluate how this affects their metastatic potential. We reasoned that restricted tissue availability of anti neoplastic drugs during chemotherapy might expose cancer cells to sub-therapeutic concentrations, which activate signaling pathways and the expression of CAV1 to favor the acquisition of more aggressive traits. Here, we used in vitro [2D, invasion] and in vivo (metastasis) assays, as well as genetic and biochemical approaches to address this question. Colon and breast cancer cells were identified where CAV1 levels were low due to epigenetic suppression and could be reverted by treatment with the methyltransferase inhibitor 5'-azacytidine. Exposure of these cells to anti-neoplastic drugs for short periods of time (24-48 h) increased CAV1 expression through ROS production and MEK/ERK activation. In colon cancer cells, increased CAV1 expression enhanced migration and invasion in vitro via pathways requiring Src-family kinases, as well as Rac-1 activity. Finally, elevated CAV1 expression in colon cancer cells following exposure in vitro to sub-cytotoxic drug concentrations increased their metastatic potential in vivo. Therefore exposure of cancer cells to anti-neoplastic drugs at non lethal drug concentrations induces signaling events and changes in transcription that favor CAV1-dependent migration, invasion and metastasis. Importantly, this may occur in the absence of selection for drug-resistance. PMID- 29340104 TI - Somatic mutation dynamics in MDS patients treated with azacitidine indicate clonal selection in patients-responders. AB - Azacitidine (AZA) for higher risk MDS patients is a standard therapy with limited durability. To monitor mutation dynamics during AZA therapy we utilized massive parallel sequencing of 54 genes previously associated with MDS/AML pathogenesis. Serial sampling before and during AZA therapy of 38 patients (reaching median overall survival 24 months (Mo) with 60% clinical responses) identified 116 somatic pathogenic variants with allele frequency (VAF) exceeding 5%. High accuracy of data was achieved via duplicate libraries from myeloid cells and T cell controls. We observed that nearly half of the variants were stable while other variants were highly dynamic. Patients with marked decrease of allelic burden upon AZA therapy achieved clinical responses. In contrast, early progressing patients on AZA displayed minimal changes of the mutation pattern. We modeled the VAF dynamics on AZA and utilized a joint model for the overall survival and response duration. While the presence of certain variants associated with clinical outcomes, such as the mutations of CDKN2A were adverse predictors while KDM6A mutations yield lower risk of dying, the data also indicate that allelic burden volatility represents additional important prognostic variable. In addition, preceding 5q- syndrome represents strong positive predictor of longer overall survival and response duration in high risk MDS patients treated with AZA. In conclusion, variants dynamics detected via serial sampling represents another parameter to consider when evaluating AZA efficacy and predicting outcome. PMID- 29340105 TI - Long-term effects of sitagliptin in patients with type 2 diabetes mellitus and hypertension: results from the PROLOGUE study. AB - Background: The effects of sitagliptin in patients with type 2 diabetes mellitus and hypertension are unclear. Therefore, we evaluated the long-term effects of sitagliptin in those patients. Methods: In the PROLOGUE study, 365 patients were diagnosed as type 2 diabetes mellitus and hypertension, and 189 patients in the sitagliptin group, 176 patients in the conventional group. Fasting blood glucose (FBG), HbA1c, systolic pressure (SP), diastolic pressure (DP), serum urea nitrogen (BUN) and serum creatinine (SCR) were measured at the beginning of the study and after 12 and 24 months of treatment. Results: FBS and HbA1c levels were not significantly decreased after treatment [12 months: OR: -3.1, 95% CI (-11.3, 5.0); OR: 0.1, 95% CI (0.0, 0.3); 24 months: OR: -0.1, 95% CI (-9.1, 8.8); OR: 0.1, 95% CI (0.0, 0.3), respectively]. BP and DP levels were not significantly decreased after treatment (12 months: OR: 0.9, 95% CI (-2.8, 4.6); OR: 0.6, 95% CI (-2.0, 3.2); 24 months: OR: -0.5, 95% CI (-4.2, 3.1); OR: -1.6, 95% CI (-41, 0.9), respectively]. Furthermore, BUN and SCR levels were not significantly decreased after treatment (12 months: OR: 0.0, 95%CI (-1.2, 1.2); OR: 0.0, 95% CI (-0.1, 0.0); 24 months: OR: 0.4, 95% CI (-1.0, 1.8); OR: -80.8, 95% CI (-201.3, 39.8), respectively]. After adjusting for confounding factors, our results did not change. Conclusions: In our study, there was no evidence that treatment with sitagliptin can improve FBS, BP, DP, BUN or SCR in patients with type 2 diabetes mellitus and hypertension. Trial Registration: University Hospital Medical Information Network Clinical Trials Registry UMIN000004490. PMID- 29340106 TI - A maternal high-fat diet during pregnancy and lactation, in addition to a postnatal high-fat diet, leads to metabolic syndrome with spatial learning and memory deficits: beneficial effects of resveratrol. AB - We tested the hypothesis that high-fat diet consumption during pregnancy, lactation, and/or post weaning, altered the expression of molecular mediators involved in hippocampal synaptic efficacy and impaired spatial learning and memory in adulthood. The beneficial effect of resveratrol was assessed. Dams were fed a rat chow diet or a high-fat diet before mating, during pregnancy, and throughout lactation. Offspring were weaned onto either a rat chow or a high-fat diet. Four experimental groups were generated, namely CC, HC, CH, and HH (maternal chow diet or high-fat diet; postnatal chow diet or high-fat diet). A fifth group fed with HH plus resveratrol (HHR) was generated. Morris water maze test was used to evaluate spatial learning and memory. Blood pressure and IPGTT was measured to assess insulin resistance. Dorsal hippocampal expression of certain biochemical molecules, including sirtuin 1, ERK, PPARgamma, adiponectin, and BDNF were measured. Rats in HH group showed impaired spatial memory, which was partly restored by the administration of resveratrol. Rats in HH group also showed impaired glucose tolerance and increased blood pressure, all of which was rescued by resveratrol administration. Additionally, SIRT1, phospho-ERK1/2, and phospho-PPARgamma, adiponectin and BDNF were all dysregulated in rats placed in HH group; administration of resveratrol restored the expression and regulation of these molecules. Overall, our results suggest that maternal high-fat diet during pregnancy and/or lactation sensitizes the offspring to the adverse effects of a subsequent high-fat diet on hippocampal function; however, administration of resveratrol is demonstrated to be beneficial in rescuing these effects. PMID- 29340107 TI - A comparison of ARMS-Plus and droplet digital PCR for detecting EGFR activating mutations in plasma. AB - In this study, we introduce a novel amplification refractory mutation system (ARMS)-based assay, namely ARMS-Plus, for the detection of epidermal growth factor receptor (EGFR) mutations in plasma samples. We evaluated the performance of ARMS-Plus in comparison with droplet digital PCR (ddPCR) and assessed the significance of plasma EGFR mutations in predicting efficacy of EGFR-tyrosine kinase inhibitor (TKI) regimen. A total of 122 advanced non-small cell lung cancer (NSCLC) patients were enrolled in this study. The tumor tissue samples from these patients were evaluated by conventional ARMS PCR method to confirm their EGFR mutation status. For the 116 plasma samples analyzed by ARMS-Plus, the sensitivity, specificity, and concordance rate were 77.27% (34/44), 97.22% (70/72), and 89.66% (104/116; kappa=0.77, P<0.0001), respectively. Among the 71 plasma samples analyzed by both ARMS-Plus and ddPCR, ARMS-Plus showed a higher sensitivity than ddPCR (83.33% versus 70.83%). The presence of EGFR activating mutations in plasma was not associated with the response to EGFR-TKI, although further validation with a larger cohort is required to confirm the correlation. Collectively, the performance of ARMS-Plus and ddPCR are comparable. ARMS-Plus could be a potential alternative to tissue genotyping for the detection of plasma EGFR mutations in NSCLC patients. PMID- 29340108 TI - Effect of gene-lifestyle interaction on gestational diabetes risk. AB - We hypothesized that the association of certain lifestyle parameters with gestational diabetes mellitus (GDM) risk would depend on susceptibility loci. In total, 278 Russian women with GDM and 179 controls completed questionnaires about lifestyle habits (food consumption, physical activity and smoking). GDM was diagnosed according to the criteria of the International Association of Diabetes and Pregnancy Study Groups. Maternal blood was sampled for genotyping single nucleotide polymorphisms (SNPs) in MTNR1B (rs10830963 and rs1387153), GCK (rs1799884), KCNJ11 (rs5219), IGF2BP2 (rs4402960), TCF7L2 (rs7903146 and rs12255372), CDKAL1 (rs7754840), IRS1 (rs1801278) and FTO (rs9939609). Binary logistic regression revealed an interaction effect of sausage intake and the number of risk alleles of two SNPs (rs10830963 in MTNR1B and rs1799884 in GCK) on GDM risk (P < 0.001). Among women without risk alleles of these two SNPs, sausage consumption was positively associated with GDM risk (P trend = 0.045). This difference was not revealed in women carrying 1 or more risk alleles. The risk of GDM increased as the number of risk alles increased in participants with low and moderate sausage consumption (P trend <0.001 and 0.006, respectively), while the risk of GDM in women with high sausage consumption remained relatively high, independent of the number of risk alleles. These findings indicate that the association of sausage consumption with GDM risk can be determined based on the number of risk alleles of rs10830963 in MTNR1B and rs1799884 in GCK. PMID- 29340110 TI - Curcumin attenuates myocardial ischemia-reperfusion injury. AB - Background: Cardiovascular diseases (CVDs) are at a badly high-risk of morbidity and mortality in the world. Methods: Our study was attempted to investigate the cardioprotective role of curcumin. Hearts injury was assessed in isolated hearts and the rats of coronary artery ligated. Results and Conclusions: The inhibition of pro-inflammatory cytokines was observed by curcumin in coronary artery ligated rats. ST segment was also reduced by curcumin. Triphenyltetrazolium chloride staining (TTC) staining and pathological analysis were also showed that curcumin could dramatically alleviate myocardial injury. Besides, the results in vitro also demonstrated that curcumin could improved the function of isolated hearts. Besides, the expressions of inflammation-related pathway in both rats and isolated hearts treated with curcumin were significantly decreased. The present study investigated the protective effects of curcumin on myocardial injury and its mechanism. PMID- 29340109 TI - Development of a targeted sequencing approach to identify prognostic, predictive and diagnostic markers in paediatric solid tumours. AB - The implementation of personalised medicine in childhood cancers has been limited by a lack of clinically validated multi-target sequencing approaches specific for paediatric solid tumours. In order to support innovative clinical trials in high risk patients with unmet need, we have developed a clinically relevant targeted sequencing panel spanning 311 kb and comprising 78 genes involved in childhood cancers. A total of 132 samples were used for the validation of the panel, including Horizon Discovery cell blends (n=4), cell lines (n=15), formalin-fixed paraffin embedded (FFPE, n=83) and fresh frozen tissue (FF, n=30) patient samples. Cell blends containing known single nucleotide variants (SNVs, n=528) and small insertion-deletions (indels n=108) were used to define panel sensitivities of >=98% for SNVs and >=83% for indels [95% CI] and panel specificity of >=98% [95% CI] for SNVs. FFPE samples performed comparably to FF samples (n=15 paired). Of 95 well-characterised genetic abnormalities in 33 clinical specimens and 13 cell lines (including SNVs, indels, amplifications, rearrangements and chromosome losses), 94 (98.9%) were detected by our approach. We have validated a robust and practical methodology to guide clinical management of children with solid tumours based on their molecular profiles. Our work demonstrates the value of targeted gene sequencing in the development of precision medicine strategies in paediatric oncology. PMID- 29340111 TI - Effect of dihydropyrimidine dehydrogenase single nucleotide polymorphisms on prognosis of breast cancer patients with chemotherapy. AB - Defining biomarkers that predict therapeutic effects and adverse events is a crucial mandate to guide patient selection for personalized cancer treatments. DPD (dihydropyrimidine dehydrogenase, encoded by DPYD gene) is the initial and rate-limiting enzyme of metabolic pathway of fluoropyrimidines, and fluoropyrimidines are common used drug therapies for breast cancer. Previous studies on DPYD polymorphism were mainly focused on its association with fluoropyrimidines toxicity. In our present study, 5 DPYD single nucleotide polymorphisms status was detected from tumor tissues of 331 invasive breast cancer patients using standard techniques. We for the first time investigated the prognostic significance of DPYD polymorphisms in breast cancer. We demonstrated non-luminal breast cancer patients carrying DPYD c.1627A>G AG/GG treated with fluoropyrimidine-based regimen presented a shorter overall survival and progression-free survival than carriers treated with non-fluoropyrimidine regimen. However, non-luminal DPYD c.1627A>G AG/GG carriers treated with TE (taxane and anthracycline)-based regimen showed a better prognosis compared with carriers treated with non-TE regimen. Our results suggested TE-based chemotherapy was a suitable regimen for non-luminal patients with DPYD c.1627A>G AG/GG genotype and fluoropyrimidine-based regimen should not be recommended for those patients. Our findings provided a novel strategy, which will guide clinicians to choose more precise chemotherapy treatment for breast cancer patients. PMID- 29340112 TI - Incidence and relative risk of peripheral neuropathy in cancer patients treated with eribulin: a meta-analysis. AB - Background: Eribulin is a microtubule inhibitor, which is approved for the treatment of breast cancer. Peripheral neuropathy has been reported in the studies of eribulin, but the incidence and relative risk (RR) of eribulin associated peripheral neuropathy varied greatly in cancer patients. The purpose of this meta-analysis was to determine the overall incidence and RR of eribulin associated peripheral neuropathy in cancer patients. Materials and Methods: Pubmed database and Embase and abstracts presented at the American Society of Clinical Oncology (ASCO) meetings were systematically reviewed for primary studies. Eligible studies included prospective clinical trials and expanded access programs of cancer patients treated with eribulin. Statistical analyses were performed to calculate the incidences, RRs, and 95% confidence intervals (CIs). Results: Altogether, 4,849 patients from 19 clinical trials were selected for this meta-analysis. The incidences of all-grade and high-grade peripheral neuropathy were 27.5% (95% CI: 23.3-32.4%) and 4.7% (95% CI: 3.6-6.2%), respectively. The relative risks of peripheral neuropathy of eribulin compared to control were increased for all-grade (RR = 1.89, 95% CI: 1.10-3.25) but not statistically significant for high-grade (RR = 2.98, 95% CI: 0.71-12.42). Conclusions: The use of eribulin is associated with an increased incidence of peripheral neuropathy. The RR is increased for all-grade peripheral neuropathy. PMID- 29340113 TI - Prognostic role of platelet to lymphocyte ratio in esophageal cancer: A meta analysis. AB - Purpose: The prognostic role of inflammation index like platelet to lymphocyte ratio (PLR) in esophageal cancer remains controversial. We evaluated the prognostic significance of PLR in esophageal cancer patients. Methods: We searched databases to identify relevant literatures. Pooled hazard ratios (HRs) and 95% confidence intervals (CIs) were calculated. A meta-analysis was performed to evaluate the prognostic value of PLR in patients with esophageal cancer. Results: A total of 6,699 patients from 16 studies (17 cohorts) were finally enrolled in the meta-analysis. The results demonstrate that the elevated PLR predicted poorer overall survival (OS) (HR: 1.389, 95% CI: 1.161-1.663) and disease-free survival (DFS) (HR: 1.404, 95% CI: 1.169-1.687) and cancer-specific survival (CSS) (HR: 1.686, 95% CI: 1.146-2.480) in patients with esophageal cancer. Subgroup analysis revealed that the elevated PLR was also associated with poor OS in esophageal cancer treated by surgery (HR: 1.492, 95%CI: 1.149-1.938, P<0.05) and mixed treatment (HR: 1.222, 95%CI: 1.009-1.479, P<0.05). In addition, PLR Cut-off value<=160 (HR: 1.484, 95%CI: 1.088-2.024, P<0.05) and PLR Cut-off value>160 (HR: 1.391, 95%CI: 1.161-1.666, P<0.05). Conclusion: This meta-analysis result suggested that PLR might be a significant predicative biomarker of poor prognosis for esophageal cancer patients. PMID- 29340114 TI - Survival benefit evaluation of radiotherapy in esophageal cancer patients aged 80 and older. AB - Purpose: To evaluate the survival benefit of radiotherapy (RT) in esophageal cancer (EC) patients aged >= 80. Materials and Methods: Records for all EC patients aged >= 65 years were extracted from the Surveillance, Epidemiology, and End Results database. Chi-square test compared the characteristic and treatment between patients aged >= 80 with those aged 65-79. Focusing on patients aged >= 80, we employed multivariable logistic regression to identify the association between selection of RT and patients' characteristics. Survival curve was employed to visualize the survival rate and multivariable Cox proportional hazard model was established to quantify the effect of RT on overall survival (OS) and cancer special survival (CSS). Results: Patients aged >= 80 were more likely to be white male and have localized EC (all P < 0.001). Selection of RT in patients aged >= 80 were associated with cancer histology (P < 0.001), grade (P = 0.024) and stage (P < 0.001). RT significantly improved the OS (hazard ratio(HR) = 0.717) and CSS (HR = 0.722) (all P < 0.001). Further stratified analysis found the improvement were only significant in the localized (OS HR = 0.662; CSS HR=0.652) and regional stage patients (OS HR = 0.571; CSS HR = 0.581) (all P < 0.001). Conclusions: Our study suggested EC patients aged >= 80 benefit from RT only if the cancer is in localized/regional stage. PMID- 29340115 TI - Hypermutation and microsatellite instability in gastrointestinal cancers. AB - Recent progress in cancer genome analysis using next-generation sequencing has revealed a high mutation burden in some tumors. The particularly high rate of somatic mutation in these tumors correlates with the generation of neo-antigens capable of eliciting an immune response. Identification of hypermutated tumors is therefore clinically valuable for selecting patients suitable for immunotherapy treatment. There are several known causes of hypermutation in tumors, such as ultraviolet light in melanoma, tobacco smoke in lung cancer, and excessive APOBEC (apolipoprotein B mRNA editing enzyme, catalytic polypeptide-like) activity in breast and gastric cancer. In gastrointestinal cancers, one of the leading causes of hypermutation is a defect in DNA mismatch repair, which results in microsatellite instability (MSI). This review will focus on the frequency, characteristics and genomic signature of hypermutated gastrointestinal cancers with MSI. Detection of tumor hypermutation in cancer is expected to not only predict the clinical benefit of immune checkpoint inhibitor treatment, but also to provide better surgical strategies for the patients with hypermutated tumors. Thus, in an era of precision medicine, identification of hypermutation and MSI will play an important role directing surgical and chemotherapeutic treatment. PMID- 29340116 TI - T follicular helper cells: a potential therapeutic target in follicular lymphoma. AB - Follicular lymphoma (FL), the most common indolent B-cell non-Hodgkin lymphoma (B NHL), is a germinal center (GC)-derived lymphoma. The mechanisms underlying B cell differentiation/maturation in GCs could be also involved in their malignant transformation. Moreover, the non-malignant cell composition and architecture of the tumor microenvironment can influence FL development and outcome. Here, we review recent research advances on CD4 helper T cells in FL that highlight the pivotal role of T follicular helper (TFH) cells in a complex multicellular system where they interact with B cells during GC dynamics. After describing the mechanism of FL lymphomagenesis, we discuss the emerging evidence about TFH cell enrichment and involvement in FL tumorigenesis and in B-T cell interaction, TFH regulation by T follicular regulatory cells (TFR) and its potential effect on FL. Then, we provide an overview on the flexible interplay between the different CD4 T-cell subtypes and how this may be predicted in normal and pathologic contexts, according to the cell epigenetic state. Finally, we highlight the importance of targeting TFH cells in the clinic, summarize the main outstanding questions about TFH and TFR cells in FL, and describe strategies to potentiate FL therapy by taking into account TFH cells. PMID- 29340118 TI - Apelin/APJ system: A key therapeutic target for liver disease. AB - Apelin, a new bioactive peptide, was identified as an endogenous ligand for APJ (Angiotensin II receptor-like 1). Apelin and its receptor have an abundant distribution in central nervous system and peripheral tissues, including liver. Apelin/APJ has diverse physiological and pathological effects, including regulation of cardiovascular function, angiogenesis, fluid homeostasis and so on. Apelin/APJ system may act as a novel potential therapeutic target for liver disease. In this article, we review the role of apelin/APJ system in liver fibrosis, hepatitis, hepatic cirrhosis, liver injury and metabolic liver disease. PMID- 29340117 TI - The regulation of pre-metastatic niche formation by neutrophils. AB - Metastasis is a multistep process requiring tumor cell detachment from the primary tumor and migration to target organs through the lymphatic or blood circulatory systems. Specific organs are predisposed to metastases in certain cancers and the formation of supportive metastatic microenvironment determines tumor cell homing. Such an environment is provided by a pre-metastatic niche that is formed through the recruitment of bone marrow-derived myeloid cells, however the mechanisms of its formation are not fully understood. Recent evidence suggests that the primary tumor itself modulates the environment of secondary organs prior to tumor cell dissemination. The contribution of neutrophils to the formation of the pre-metastatic niche is getting growing attention. Obviously, neutrophils can affect the development of metastasis in two contradicting ways, by either stimulation or inhibition of this process, depending on the activation status. Pro-tumor neutrophils actively support metastasis formation by different mechanisms, including the formation of pre-metastatic niche, tumor cell attraction, and the direct support of tumor cell proliferation. Moreover, suppressive neutrophils, which are the granulocytic arm of MDSC, promote tumor progression by dampening anti-tumor T cell immunity. On the other hand, anti tumor neutrophils can inhibit metastasis formation by the cytotoxicity towards tumor cells in the circulation or at the pre-metastatic site, and even via stimulation of T cell proliferation. Apparently, the regulation of the pro- or anti-tumor neutrophil properties has significant implications on metastatic spread in the host. Here we provide an up to date overview of the different roles neutrophils play in regulating the metastatic processes. PMID- 29340120 TI - Effect of Short Hydration on Cisplatin-Induced Nephrotoxicity in Cancer Patients: A Retrospective Study. AB - Background: The aim of this study was to evaluate the protective role of short hydration against nephrotoxicity induced by cisplatin (CDDP). Materials and Methods: Twenty-two patients (13 men and 9 women) under CDDP therapy were enrolled in this retrospective study between 2009 and 2014. The CDDP was given in 500 ml of isotonic solution, and before and after CDDP administration, the patients received 10mEq potassium chloride15% and 1gr magnesium sulfate in 1000 ml isotonic saline. Renal parameters were evaluated on the first day of each cycle of CDDP therapy. Results: Median cumulative CDDP dose was 465 mg/m2. Based on renal parameters, the prevalence of CDDP-induced nephrotoxicity (CIN) was 22.7%, while no hypokalemia and hypomagnesemia were observed. Conclusion: Short hydration accompanied with potassium chloride and magnesium sulfate may decrease the risk of CIN. PMID- 29340119 TI - MEF2 signaling and human diseases. AB - The members of myocyte Enhancer Factor 2 (MEF2) protein family was previously believed to function in the development of heart and muscle. Recent reports indicate that they are also closely associated with development and progression of many human diseases. Although their role in cancer biology is well established, the molecular mechanisms underlying their action is yet largely unknown. MEF2 family is closely associated with various signaling pathways, including Ca2+ signaling, MAP kinase signaling, Wnt signaling, PI3K/Akt signaling, etc. microRNAs also contribute to regulate the activities of MEF2. In this review, we summarize the known molecular mechanism by which MEF2 family contribute to human diseases. PMID- 29340121 TI - Complications of Transfusion-Dependent beta-Thalassemia Patients in Sistan and Baluchistan, South-East of Iran. AB - Background: Thalassemia syndromes are among prevalent hereditary disorders imposing high expenses on health-care system worldwide and in Iran. Organ failure represents a life-threatening challenge in transfusion- dependent beta thalassemia (TDT) patients. The purpose of the present study was to determine the frequency of organ dysfunctions among TDT patients in Sistan and Baluchistan province in South-East of Iran. Materials and Methods: Laboratory and clinical data were extracted from medical records as well as by interviews. Standard criteria were applied to recognize cardiac, gonadal, endocrine and renal dysfunctions. The collected data were analyzed using the SPSS statistics software (Ver.19). Results: A total of 613 TDT patients (54.3% males and 45.7% females) were included in this study. The mean age of patients was 13.3 +/-7.7 years old. Cardiac events comprised the most encountered complications (76.4%), following by hypogonadism (46.8%), parathyroid dysfunction (22%), thyroid abnormalities (8.3%), diabetes (7.8%) and renal disease (1.8%). Hypogonadism comprised the most identified complication in patient <15 years old, while the cardiac complications were the most frequent sequela in patients >15 years old (P<0.01). Conclusion: As cardiac events are significantly more common among TDT patients, close monitoring of the heart function is recommended for identifying patients with cardiac problems. PMID- 29340122 TI - A Cross-Sectional Study of Glycemic Status and Zinc Level in Patients with Beta Thalassemia Major. AB - Background: Endocrinopathies and diabetes mellitus are prevalent in patients with beta-thalassemia major Recently some studies demonstrate a link between low levels of serum zinc level and higher prevalence of diabetes. The aim of this study was to evaluate the glucose tolerance in patients suffered from beta thalassemia major and determine the association of Homeostasis Model Assessment (HOMA) parameters with zinc status among these patients. Materials andMethods: In this cross sectional study, clinical data of patients who were suffered from thalassemia major, aged>=10 years were collected. Serum ferritin concentration, fasting blood sugar, fasting blood insulin and serum zinc level were assessed after overnight fasting. Moreover, oral glucose tolerance test was performed. Homeostasis Model Assessment (HOMA-2) was used for calculating beta-cell function, insulin resistance and sensitivity for normoglycemic and pre-diabetic subjects. Results: of the 163 patients diagnosed with beta-thalassemia major, 10%, 53% and 37% were diabetic, pre-diabetic and normal, respectively. Mean serum zinc concentration was equal to 18.90+/-10.93ug/dl, and it was not significantly different across diabetic, pre-diabetic and normal groups. Pre-diabetic patients had significantly lower beta-cell function compared to normal subjects (P=0.0001). An inverse relation was documented between beta-cell function on one hand and total units of blood transfusion and ferritin level on the other hand (r=-0.29, P=0.004 and r=-0.27, P=0.03, respectively). The analysis adjusted for multiple possible confounders showed that there is no significant association between HOMA parameters and serum zinc level. Conclusion: Impaired glucose metabolism and low serum zinc level were quite common among our study participants. The findings of the study also signifies the substantial role of follow-up in early detection and appropriate treatment. PMID- 29340123 TI - Multiple Extramedullary Plasmacytoma in a Setting of Complete Bone Marrow Remission: Food for Thought. AB - Extramedullary plasmacytoma as a mode of relapse in multiple myeloma (MM) is unusual. Current recommendations do not incorporate the routine use of 18 fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET/CT) imaging prior to haematopoietic stem cell transplant (HSCT) in MM. We report a case of relapsed MM with complete remission as per IMWG criteria. In the interim period, before the HSCT, the patient had localizing neurological signs and symptoms attributed to multiple extramedullary plasmacytomas. The uniqueness of this case is that this patient after complete marrow remission with no obvious external masses had unexpected, symptomatic multiple extramedullary plasmacytomas. This case illustrates the need for integration of FDG PET/CT imaging into routine pre-HSCT investigations in relapsed MM to prevent missing any asymptomatic extramedullary plasmacytomas. PMID- 29340124 TI - The Use of Filgrastim in Patients with Hodgkin Lymphoma Receiving ABVD. AB - Background: There is conflicting data about the increased risk of pulmonary toxicity when granulocyte-stimulating factor (G-CSF) is given in combination with bleomycin. No clear consensus for management of patients with Hodgkin lymphoma (HL) who require G-CSF support exists. Our objective was to evaluate whether there is an increase in pulmonary toxicity in patients who receive bleomycin and G-CSF during treatment for HL. Materials and Methods: We conducted a single center retrospective analysis of patients with Hodgkin Lymphoma from January 2003 until July 2015. All patients who received at least 1 dose of bleomycin and followed at our institution were included. Patients were evaluated for pulmonary toxicity starting from the day of first dose of bleomycin until 1 year after initiation of bleomycin. Data on pre-identified risk factors for pulmonary toxicity were also collected. Results: Fifty-four patients met inclusion criteria. Twenty-one patients received bleomycin alone, and 33 patients received bleomycin and G-CSF. There was no statistically significant (p = 0.50) difference in the development of pulmonary toxicity between the two groups. Crude hazard ratio for development of pulmonary toxicity in the bleomycin and G-CSF cohort was 1.58 (95% confidence interval, CI: 0.41-6.12). On multivariate analysis, the hazard ratio for development of pulmonary toxicity was 1.71 (95% CI: 0.43-6.81). Conclusion: This study does not find evidence that the combination of bleomycin and G-CSF increases the risk for bleomycin- induced pulmonary toxicity. We recommend G-CSF use in HL patients receiving bleomycin when needed to maintain dose intensity. PMID- 29340125 TI - Rare Presentation of Refractory Thrombotic Thrombocytopenic Purpura: Jejunal Stricture. AB - Thrombotic thrombocytopenic purpura is a rare thrombotic disease characterized by episodes of thrombocytopenia and microangiopathic hemolytic anemia due to disseminated microvascular thrombosis. Thrombotic thrombocytopenic purpura was first described in 1924 by Moschowitz as a disease presenting with a pentad of signs and symptoms (anemia, thrombocytopenia, fever, hemiparesis and hematuria). Previous studies have described atypical manifestations of thrombotic thrombocytopenic purpura such as hemolysis, anemia and thrombosis. PMID- 29340126 TI - Hepatosplenic Gamma Delta T-Cell Lymphoma (HSGDTCL): Two Rare Case Reports from Western India. AB - Peripheral T cell lymphomas are a heterogeneous group of post-thymic, mature lymphoid malignancies, accounting for approximately 10-15% of all non-Hodgkin's lymphomas. Hepatosplenic T-cell lymphoma (HSGDTCL) is a rare entity, which is characterized by primary extra nodal disease with typical sinusoidal or sinusal infiltration of the liver and the spleen, respectively by expression of the T cell receptor gammadelta chain, and by a number of other frequent clinicopathologic features, including aggressive course of disease. Secondary involvement of liver by hematopoietic malignancies is much more common as compared to primary liver involvement. Primary involvement of liver by non- Hodgkin's lymphoma (NHL) is documented and mostly DLBCL (diffuse large B cell lymphoma) type. But, T cell lymphoma primarily arising from liver is very rare. It occurred commonly in immunocompromised patients and prognosis is very poor. Here, we present two case reports of Hepatosplenic gamma-delta T-cell lymphoma (HSGDTCL) and both are immunocompetent patients. Liver biopsy from the mass and subsequent IHC (immunohistochemistry) were performed for the purpose of diagnosis, which were positive for LCA (leukocyte common antigen), CD2 and negative for CD5, CD20 and CD79a. First patient was a 63-year-old female with hepatitis C virus seropositivity presented with liver mass simulating hepatocellular carcinoma. Second patient was a 60-year- old male, chronic alcoholic patient, presented with liver mass and lytic bony lesion in pelvis. Both patients were managed with conventional CHOP (cyclophosphamide, hydroxydaunorubicin, vincristine, and prednisolone) and showed complete response after 4 cycles of chemotherapy. After completion of 6 cycles of chemotherapy, both patients remained under 6-month surveillance period for any recurrence of the disease. PMID- 29340127 TI - Restarting Thalidomide-Dexamethasone Regimen in a Post-Abortive Female with Multiple Myeloma: Effective Clinical Response Possible. AB - Nowadays, the prevalence of Multiple Myeloma (MM) seems to have been increasing among young females. Here, we report that thalidomide is contraindicated in pregnant women diagnosed with MM and those desirous of subsequent pregnancy. In this case report, we compared the clinical response of Thalidomide-Dexamethasone therapy in a post-abortive woman with persistently elevated beta-hCG levels due to retained products of conception, undergoing hysterectomy later. This case report underlines the clinical significance of age, the effect of Thalidomide Dexamethasone therapy even after initial discontinuation and the response to high beta-hCG levels. PMID- 29340128 TI - Hematological Reference Intervals for Healthy Iranian Blood Donors. AB - Background: Development of locally-derived hematological reference intervals is necessary for improving the quality of health care and clinical trials. However hematological reference intervals are affected by several variables including age, gender and environmental factors. Therefore this study was conducted to determine the gender and age-specific hematological reference intervals of healthy Iranian blood donors. Materials and Methods: Selected hematological indices of 394 healthy blood donor volunteers, donating blood at Tehran Blood Transfusion Center were analyzed. Hematological reference intervals, stratified by age and gender were compared. The results of current study were also compared with those of US population. Results: There were significant gender-related differences for mean values of hematological indices, with males having higher mean values of RBC, HCG, HCT and MCV than females. While the mean of PLT and MCH were higher in women. Age-related differences for mean values of RBC and MCH were also significant. The comparison of reference intervals, stratified by both gender and age showed that RBC, HGB and HCT values were higher in males than females in all age groups. But MCH values of females in all age groups and WBC and PLT counts in females older than 30 years were higher compared to the males in the same age group. The results of this study showed some similarity with US population, with narrower intervals. Conclusion: This study suggests that gender and age-specific, locally derived hematological reference intervals should be referred to, before interpretation of any laboratory test result. PMID- 29340129 TI - Protective Isolation for Patients with Haematological Malignancies: A Pilot Study Investigating Patients' Distress and Use of Time. AB - Background: Patients with haematological malignancies are often hospitalized in protective isolation until full neutrophil recovery in order to prevent infections. This descriptive pilot study evaluate the level of isolation-related distress and the use of free time in a sample of Italian onco-haematological patients who were hospitalized in protective isolation. Materials and Methods: Participants were 18 patients hospitalized in hematologic ward to receive induction therapy (n=12) or autologous stem cell transplant (n=6). They completed a self-report questionnaire before discharge. Results: Participants reported a moderate level of isolation-related distress, anxiety, and boredom: the more the anxiety and the boredom, the more the distress (r=.77; P<.001), (r=.79; P<.001), respectively. The activities performed during isolation were: watching TV (72.2%), reading (55.6%), thinking (33.3%), surfing in Internet or using PC (33.3%), and playing games or making cross-words (16.7%). Participants who reported pessimistic thinking had higher isolation-related distress (P=.004) as well as anxiety (P<.001) and boredom (P=.001). Conclusion: Haematology Units should support isolated patients in spending their time in recreational activities, allowing more contacts with immediate relatives and friends, providing free TV and Wi-Fi connection inside the room. In addition, patients should have to keep themselves physically active. Isolation-related distress could also be reduced by providing psychological support. PMID- 29340130 TI - Mechanism Action of Platelets and Crucial Blood Coagulation Pathways in Hemostasis. AB - Blood is considered to be precious because it is the basic necessity for health; our body needs a steady provision of oxygen, supplied via blood, to reach billions of tissues and cells. Hematopoiesis is the process that generates blood cells of all lineages. However, platelets are the smallest blood component produced from the very large bone marrow cells called megakaryocytes and they play a fundamental role in thrombosis and hemostasis. Platelets contribute their hemostatic capacity via adhesion, activation and aggregation, which are triggered upon tissue injury, and these actions stimulate the coagulation factors and other mediators to achieve hemostasis. In addition, these coordinated series of events are the vital biological processes for wound healing phases. The aim of this review is to summarize and highlight the important pathways involved in achieving hemostasis that are ruled by platelets. In addition, this review also describes the mechanism action of platelets, including adhesion, activation, aggregation, and coagulation, as well as the factors that aid in hemostasis and wound healing. PMID- 29340131 TI - Acute Myeloid Leukemia-Genetic Alterations and Their Clinical Prognosis. AB - Acute myeloid leukemia (AML) is a group of hematological diseases, phenotypic and genetically heterogeneous, characterized by abnormal accumulation of blast cells in the bone marrows and peripheral blood. Its incidence rate is approximately 1.5 per 100,000 in infants younger than 1 year of age and 25 per 100,000 persons in octogenarians. Traditionally, cytogenetic markers are used to stratify patients in three risk categories: favorable, intermediate and unfavorable. However, the forecast stratification and the treatment decision for patients with normal karyotype shows difficulties due to the high clinical heterogeneity. The identification of several genetic mutations additional to classical molecular markers has been useful in identifying new entities. Nowadays, many different mutations and epigenetic aberrations have been implicated in the diagnostic, prognostic and treatment of AML. This review is focused on describing the most important molecular markers with implications for clinical practice. PMID- 29340132 TI - Effect of epilepsy on autism symptoms in Angelman syndrome. AB - Background: Autism spectrum disorder and epilepsy often co-occur; however, the extent to which the association between autism symptoms and epilepsy is due to shared aetiology or to the direct effects of seizures is a topic of ongoing debate. Angelman syndrome (AS) is presented as a suitable disease model to explore this association. Methods: Data from medical records and questionnaires were used to examine the association between age of epilepsy onset, autism symptoms, genetic aberration and communication level. Forty-eight participants had genetically verified AS (median age 14.5 years; range 1-57 years). A measure of autism symptoms (the Social Communication Questionnaire; SCQ) was completed for 38 individuals aged >= 4 years. Genetic cause was subgrouped into deletion and other genetic aberrations of the 15q11-q13 area. The number of signs used to communicate (< 20 sign and >= 20 signs) was used as a measure of nonverbal communication. Results: Mean age of epilepsy onset was 3.0 years (range 3 months 7.8 years). Mean SCQ score for individuals without epilepsy was 13.6 (SD = 6.7) and with epilepsy 17.0 (SD = 5.6; p = 0.17); 58% used fewer than 20 signs to communicate. There were no age differences between groups according to presence of epilepsy, level of nonverbal communication or type of genetic aberration. SCQ scores were higher in individuals with the deletion than in those with other genetic aberrations (18.7 vs 10.8 p = 0.008) and higher in the group who used < 20 signs to communicate (19.4 vs 14.1 p = 0.007). Age of epilepsy onset was correlated with SCQ (r = - 0.61, p < 0.001). Multiple regression showed that age of seizure onset was significantly related to SCQ score (beta = - 0.90; p = 0.006), even when the type of genetic abnormality was controlled (R2 = 0.53; F = 10.7; p = 0.001). Conclusions: The study provides support for the notion that seizures themselves contribute more to autism symptoms than expected from the underlying genetic pathology alone. The study demonstrates how a rare genetic syndrome such as Angelman syndrome may be used to study the relation between epilepsy and autism symptomatology. PMID- 29340133 TI - A regional assessment of white-tailed deer effects on plant invasion. AB - Herbivores can profoundly influence plant species assembly, including plant invasion, and resulting community composition. Population increases of native herbivores, e.g. white-tailed deer (Odocoileus virginianus), combined with burgeoning plant invasions raise concerns for native plant diversity and forest regeneration. While individual researchers typically test for the impact of deer on plant invasion at a few sites, the overarching influence of deer on plant invasion across regional scales is unclear. We tested the effects of deer on the abundance and diversity of introduced and native herbaceous and woody plants across 23 white-tailed deer research sites distributed across the east-central and north-eastern USA and representing a wide range of deer densities and invasive plant abundance and identity. Deer access/exclusion or deer population density did not affect introduced plant richness or community-level abundance. Native and total plant species richness, abundance (cover and stem density) and Shannon diversity were lower in deer-access vs. deer-exclusion plots. Among deer access plots, native species richness, native and total cover, and Shannon diversity (cover) declined as deer density increased. Deer access increased the proportion of introduced species cover (but not of species richness or stem density). As deer density increased, the proportion of introduced species richness, cover and stem density all increased. Because absolute abundance of introduced plants was unaffected by deer, the increase in proportion of introduced plant abundance is likely an indirect effect of deer reducing native cover. Indicator species analysis revealed that deer access favoured three introduced plant species, including Alliaria petiolata and Microstegium vimineum, as well as four native plant species. In contrast, deer exclusion favoured three introduced plant species, including Lonicera japonica and Rosa multiflora, and 15 native plant species. Overall, native deer reduced community diversity, lowering native plant richness and abundance, and benefited certain invasive plants, suggesting pervasive impacts of this keystone herbivore on plant community composition and ecosystem services in native forests across broad swathes of the eastern USA. PMID- 29340134 TI - Does mycorrhizal status alter herbivore-induced changes in whole-plant resource partitioning? AB - Both mycorrhizae and herbivore damage cause rapid changes in source-sink dynamics within a plant. Mycorrhizae create long-term sinks for carbon within the roots while damage by leaf-chewing herbivores causes temporary whole-plant shifts in carbon and nitrogen allocation. Thus, induced responses to herbivory might depend on the presence or absence of mycorrhizae. We examined the effects of mycorrhizal presence on induced resource partitioning in tomato (Solanum lycopersicon) in response to cues from a specialist herbivore Manduca sexta. Differences in plant size, growth and in the concentrations of carbon-based (soluble sugars and starch) and nitrogen-based (protein and total nitrogen) resources in three tissue types (apex, stem and roots) were quantified. Both mycorrhizae and simulated herbivory altered the concentrations of carbon- and nitrogen-based resources. Mycorrhizae promoted plant growth, altered sugar and starch levels. Simulated herbivory resulted in lower concentrations of most resources (sugar, starch and protein) in the rapidly growing apex tissue, while causing an increase in stem protein. There was only one interactive effect; the effects of simulated herbivory were much stronger on the sugar concentration in the apex of non mycorrhizal plants. This clearly demonstrates that both mycorrhizal colonization and herbivore cues cause shifts in carbon- and nitrogen-based resources and further shows there is little interference by mycorrhizae on the direction and magnitude of plant responses to herbivory. Overall, our results suggest that herbivore cues, regardless of mycorrhizal status, reduce allocation to the growing apex while inducing protein storage in the stem, a possible mechanism that could increase the tolerance of plants to damage. PMID- 29333233 TI - On the primacy and irreducible nature of first-person versus third-person information. AB - In this essay, we will support the claim that at the current level of scientific advancement a) some first-person accounts cannot be reduced to their third-person neural and psychophysiological correlates and b) that these first-person accounts are the only information to reckon when it is necessary to analyse qualia contents. Consequently, for many phenomena, first-person accounts are the only reliable source of information available and the knowledge of their neural and psychophysical correlates don't offer any additional information about them. PMID- 29333234 TI - Case Report: Laparoscopic hepatectomy in an elderly patient with major comorbidities. AB - Surgeons have been hesitant to proceed to hepatectomy in elderly patients, due to the higher rate of comorbidities and the reduced reserves. An 81-year-old male with hepatocellular carcinoma in the segment VI of the liver and several major cardiovascular, pulmonary and metabolic comorbid illnesses was referred to our department for treatment. He underwent transarterial chemoembolization of the liver tumor and afterwards he underwent laparoscopic resection of the hepatic segment VI, with an uneventful postoperative course. This case indicates that laparoscopic liver resections could be applied even to elderly patients with major comorbidities after optimization of their medical status. PMID- 29333233 TI - On the primacy and irreducible nature of first-person versus third-person information. AB - In this essay, we will support the claim that at the current level of scientific advancement a) some first-person accounts cannot be reduced to their third-person neural and psychophysiological correlates and b) that these first-person accounts are the only information to reckon when it is necessary to analyse qualia contents. Consequently, for many phenomena, first-person accounts are the only reliable source of information available and the knowledge of their neural and psychophysical correlates don't offer any additional information about them. PMID- 29333235 TI - Case Report: Synchronous primary malignancy including the breast and endometrium. AB - Breast and endometrial cancer are the most common types of female cancers, but the incidence of both of these malignancies in a single patient is a rare event. Multiple primary malignancy has been increasingly reported over the past decade, and double primary cancer is considered as the most common type. In this study, we present a 53-year-old woman with synchronous primary malignancy of breast and endometrium. This patient had a history of breast and endometrial cancer in her family. Mammography and chest CT of the patient revealed a mass in the right breast and left supraclavicular region. However, the patient did not want to initiate treatment. Subsequently, the patient returned with a chief complaint of persistent abnormal vaginal bleeding. Abdominopelvic CT scan of the patient revealed a huge soft tissue mass in the pelvic cavity. She underwent hysterectomy, and pathology revealed endometrioid carcinoma, which had invaded the full thickness of uterine wall. Since this type of malignancy is rare and several risk factors are associated with it, it is worth being considered by clinicians when making decisions about screening or strategy for prevention. PMID- 29333237 TI - Draft genome of tule elk Cervus canadensis nannodes. AB - This paper presents the first draft genome of the tule elk ( Cervus elaphus nannodes), a subspecies native to California that underwent an extreme genetic bottleneck in the late 1800s. The genome was generated from Illumina HiSeq 3000 whole genome sequencing of four individuals, resulting in the assembly of 2.395 billion base pairs (Gbp) over 602,862 contigs over 500 bp and N50 = 6,885 bp. This genome provides a resource to facilitate future genomic research on elk and other cervids. PMID- 29333236 TI - In silico analysis of natural compounds targeting structural and nonstructural proteins of chikungunya virus. AB - Background: Chikungunya fever presents as a high-grade fever during its acute febrile phase and can be prolonged for months as chronic arthritis in affected individuals. Currently, there are no effective drugs or vaccines against this virus. The present study was undertaken to evaluate protein-ligand interactions of all chikungunya virus (CHIKV) proteins with natural compounds from a MolBase library in order to identify potential inhibitors of CHIKV. Methods: Virtual screening of the natural compound library against four non-structural and five structural proteins of CHIKV was performed. Homology models of the viral proteins with unknown structures were created and energy minimized by molecular dynamic simulations. Molecular docking was performed to identify the potential inhibitors for CHIKV. The absorption, distribution, metabolism and excretion (ADME) toxicity parameters for the potential inhibitors were predicted for further prioritization of the compounds. Results: Our analysis predicted three compounds, Catechin-5-O gallate, Rosmarinic acid and Arjungenin, to interact with CHIKV proteins; two (Catechin-5-O-gallate and Rosmarinic acid) with capsid protein, and one (Arjungenin) with the E3. Conclusion: The compounds identified show promise as potential antivirals, but further in vitro studies are required to test their efficacy against CHIKV. PMID- 29333239 TI - The peer review process for awarding funds to international science research consortia: a qualitative developmental evaluation. AB - Background: Evaluating applications for multi-national, multi-disciplinary, dual purpose research consortia is highly complex. There has been little research on the peer review process for evaluating grant applications and almost none on how applications for multi-national consortia are reviewed. Overseas development investments are increasingly being channelled into international science consortia to generate high-quality research while simultaneously strengthening multi-disciplinary research capacity. We need a better understanding of how such decisions are made and their effectiveness. Methods: An award-making institution planned to fund 10 UK-Africa research consortia. Over two annual rounds, 34 out of 78 eligible applications were shortlisted and reviewed by at least five external reviewers before final selections were made by a face-to-face panel. We used an innovative approach involving structured, overt observations of award making panel meetings and semi-structured interviews with panel members to explore how assessment criteria concerning research quality and capacity strengthening were applied during the peer review process. Data were coded and analysed using pre-designed matrices which incorporated categories relating to the assessment criteria. Results: In general the process was rigorous and well managed. However, lack of clarity about differential weighting of criteria and variations in the panel's understanding of research capacity strengthening resulted in some inconsistencies in use of the assessment criteria. Using the same panel for both rounds had advantages, in that during the second round consensus was achieved more quickly and the panel had increased focus on development aspects. Conclusion: Grant assessment panels for such complex research applications need to have topic- and context-specific expertise. They must also understand research capacity issues and have a flexible but equitable and transparent approach. This study has developed and tested an approach for evaluating the operation of such panels and has generated lessons that can promote coherence and transparency among grant-makers and ultimately make the award-making process more effective. PMID- 29333240 TI - The use of dexmedetomidine and intravenous acetaminophen for the prevention of postoperative delirium in cardiac surgery patients over 60 years of age: a pilot study. AB - Background: Delirium is associated with many negative health outcomes. Postoperative sedation and opioid administration may contribute to delirium. We hypothesize that the use of dexmedetomidine and Intravenous acetaminophen (IVA) may lead to reduced opioid consumption and decreased incidence of postoperative delirium. This pilot study aims to assess feasibility of using dexmedetomidine and IVA in cardiac surgical patients, and estimate the effect size for incidence and duration of delirium. Methods: A total of 12 adult patients >60 years of age undergoing cardiac surgery were recruited and randomized into 4 groups: Propofol only (P), Propofol with IVA (P+A), Dexmedetomidine only (D), Dexmedetomidine with IVA (D+A). Preoperative baseline cognition and postoperative delirium was assessed daily until discharge. The feasibility was assessed by the number of patients who completed the study. Results: All patients completed the study successfully. The total incidence of delirium in the study population was 42% (5/12): 67% (2/3) in the group P, and 67% (2/3) in the group D, 33% (1/3) in D+A group and 0%(0/3) P+A group. The incidence of delirium was 17% (1/6) in the group receiving IVA compared to 67% (4/6) that did not receive IVA. The mean range of duration of delirium was 0-1 days. One patient expired after surgery, unrelated to the study protocol. One patient in the D group experienced hypotension (systolic blood pressure <90 mm of Hg.) Conclusions: The feasibility of performing a project is ascertained by the study. Patients receiving IVA had lower incidence of delirium compared to patients not receiving IVA which suggests that IVA may have a role in reducing the incidence of delirium. A prospective randomized, placebo-controlled trial will be the next step in investigating the role of dexmedetomidine and IVA in reducing the incidence of delirium. PMID- 29333241 TI - Developing data interoperability using standards: A wheat community use case. AB - In this article, we present a joint effort of the wheat research community, along with data and ontology experts, to develop wheat data interoperability guidelines. Interoperability is the ability of two or more systems and devices to cooperate and exchange data, and interpret that shared information. Interoperability is a growing concern to the wheat scientific community, and agriculture in general, as the need to interpret the deluge of data obtained through high-throughput technologies grows. Agreeing on common data formats, metadata, and vocabulary standards is an important step to obtain the required data interoperability level in order to add value by encouraging data sharing, and subsequently facilitate the extraction of new information from existing and new datasets. During a period of more than 18 months, the RDA Wheat Data Interoperability Working Group (WDI-WG) surveyed the wheat research community about the use of data standards, then discussed and selected a set of recommendations based on consensual criteria. The recommendations promote standards for data types identified by the wheat research community as the most important for the coming years: nucleotide sequence variants, genome annotations, phenotypes, germplasm data, gene expression experiments, and physical maps. For each of these data types, the guidelines recommend best practices in terms of use of data formats, metadata standards and ontologies. In addition to the best practices, the guidelines provide examples of tools and implementations that are likely to facilitate the adoption of the recommendations. To maximize the adoption of the recommendations, the WDI-WG used a community-driven approach that involved the wheat research community from the start, took into account their needs and practices, and provided them with a framework to keep the recommendations up to date. We also report this approach's potential to be generalizable to other (agricultural) domains. PMID- 29333243 TI - Unexpected results in Chernozem soil respiration while measuring the effect of a bio-fertilizer on soil microbial activity. AB - The number of studies investigating the effect of bio-fertilizers is increasing because of their importance in sustainable agriculture and environmental quality. In our experiments, we measured the effect of different fertilizers on soil respiration. In the present study, we were looking for the cause of unexpected changes in CO2 values while examining Chernozem soil samples. We concluded that CO2 oxidizing microbes or methanotrophs may be present in the soil that periodically consume CO2 . This is unusual for a sample taken from the upper layer of well-ventilated Chernozem soil with optimal moisture content. PMID- 29333242 TI - Predictive value of early postoperative IOP and bleb morphology in Mitomycin-C augmented trabeculectomy. AB - Background: To determine the predictive value of postoperative bleb morphological features and intraocular pressure (IOP) on the success rate of trabeculectomy. Methods: In this prospective interventional case series, we analyzed for one year 80 consecutive primary open angle glaucoma patients who underwent mitomycin augmented trabeculectomy. Bleb morphology was scored using the Indiana bleb appearance grading scale (IBAGS). Success was defined as IOP <=15 mmHg at 12 months. We applied a multivariable regression analysis and determined the area under the receiver operating characteristic curve (AUC). Results: The mean age of participants was 62+/-12.3 years in the success and 63.2+/-16.3 years in the failure group (P= 0.430) with equal gender distribution (P=0.911). IOPs on day 1, 7 and 30 were similar in both (P= 0.193, 0.639, and 0.238, respectively.) The AUC of IOP at day 1, day 7 and 30 for predicting a successful outcome was 0.355, 0.452, and 0.80, respectively. The AUC for bleb morphology parameters of bleb height, extension, and vascularization, on day 14 were 0.368, 0.408, and 0.549, respectively. Values for day 30 were 0.428, 0.563, and 0.654. IOP change from day 1 to day 30 was a good predictor of failure (AUC=0.838, 95% CI: 0.704 to 0.971) with a change of more than 3 mmHg predicting failure with a sensitivity of 82.5% (95% CI: 68 to 91%) and a specificity of 87.5% (95% CI: 53 to 98%). Conclusions: IOP on day 30 had a fair to good accuracy while bleb features failed to predict success except bleb vascularity that had a poor to fair accuracy. An IOP increase more than 3 mmHg during the first 30 days was a good predictor of failure. PMID- 29333244 TI - Infectious pancreatic necrosis virus triggers antiviral immune response in rainbow trout red blood cells, despite not being infective. AB - Background: Some fish viruses, such as piscine orthoreovirus and infectious salmon anemia virus, target red blood cells (RBCs), replicate inside them and induce an immune response. However, the roles of RBCs in the context of infectious pancreatic necrosis virus (IPNV) infection have not been studied yet. Methods: Ex vivo rainbow trout RBCs were obtained from peripheral blood, Ficoll purified and exposed to IPNV in order to analyze infectivity and immune response using RT-qPCR, immune fluorescence imaging, flow cytometry and western-blotting techniques. Results: IPNV could not infect RBCs; however, IPNV increased the expression of the INF1-related genes ifn-1, pkr and mx genes. Moreover, conditioned media from IPNV-exposed RBCs conferred protection against IPNV infection in CHSE-214 fish cell line. Conclusions: Despite not being infected, rainbow trout RBCs could respond to IPNV with increased expression of antiviral genes. Fish RBCs could be considered as mediators of the antiviral response and therefore targets of new strategies against fish viral infections. Further research is ongoing to completely understand the molecular mechanism that triggers this antiviral response in rainbow trout RBCs. PMID- 29333245 TI - The impact of fresh gas flow on wash-in, wash-out time and gas consumption for sevoflurane and desflurane, comparing two anaesthesia machines, a test-lung study. AB - Low-flow anaesthesia is considered beneficial for the patient and the environment, and it is cost reducing due to reduced anaesthetic gas consumption. An initial high-flow to saturate the circle system ( wash-in) is desirable from a clinical point of view. We measured the wash-in and wash-out times (time to saturate and to eliminate the anaesthetic agent, AA), for sevoflurane and desflurane, in a test-lung with fixed 3 MAC vaporizer setting at different fresh gas flow (FGF) and calculated the consumption of AA. We tried to find an optimal flow rate for speed and gas consumption, comparing two anaesthesia machines (AMs): Aisys and Flow-i. Time to reach 1 minimal alveolar concentration (MAC) (wash-in) decreased (p<0.05) at higher flow rates (1 - 2 - 4) but plateaued at 4 4.8 l/min. The consumption of AA was at its lowest around 4-4.8 l/min (optimal flow) for all but the Aisys /desflurane group. Wash-out times decreased as FGF increased, until reaching plateau at FGF of 4-6 l/min. Aisys had generally shorter wash-in times at flow rates < 4 l/min as well as lower consumption of AA. At higher flow rates there were little difference between the AMs. The "optimal FGF" for wash-out, elimination of gas from the test-lung and circle system, plateaued with no increase in speed beyond 6 l/min. A fresh gas flow of 4 l/min. seems "optimal" taking speed to reach a 1 MAC ET and gas consumption into account during wash-in with a fixed 3 MAC vaporizer setting, and increasing fresh gas flow beyond 6 l/min does not seem to confirm major benefit during wash-out. PMID- 29340148 TI - Reducing unnecessary culturing: a systems approach to evaluating urine culture ordering and collection practices among nurses in two acute care settings. AB - Background: Inappropriate ordering and acquisition of urine cultures leads to unnecessary treatment of asymptomatic bacteriuria (ASB). Treatment of ASB contributes to antimicrobial resistance particularly among hospital-acquired organisms. Our objective was to investigate urine culture ordering and collection practices among nurses to identify key system-level and human factor barriers and facilitators that affect optimal ordering and collection practices. Methods: We conducted two focus groups, one with ED nurses and the other with ICU nurses. Questions were developed using the Systems Engineering Initiative for Patient Safety (SEIPS) framework. We used iterative categorization (directed content analysis followed by summative content analysis) to code and analyze the data both deductively (using SEIPS domains) and inductively (emerging themes). Results: Factors affecting optimal urine ordering and collection included barriers at the person, process, and task levels. For ED nurses, barriers included patient factors, physician communication, reflex culture protocols, the electronic health record, urinary symptoms, and ED throughput. For ICU nurses, barriers included physician notification of urinalysis results, personal protective equipment, collection technique, patient body habitus, and Foley catheter issues. Conclusions: We identified multiple potential process barriers to nurse adherence with evidence-based recommendations for ordering and collecting urine cultures in the ICU and ED. A systems approach to identifying barriers and facilitators can be useful to design interventions for improving urine ordering and collection practices. PMID- 29340149 TI - Acute kidney injury due to multiple Hymenoptera stings-a clinicopathological study. AB - Background: Acute kidney injury (AKI) after multiple Hymenoptera stings is well known but still a rare phenomenon. Methods: We conducted a retrospective study of the clinicopathological spectrum of AKI due to multiple Hymenoptera stings over 13 years (July 2003-June 2016). Results: A total of 35 patients were diagnosed with AKI due to multiple Hymenoptera stings. The mean age of the patients was 44.7 +/- 17.4 years and the majority (60%) were men. Haematological and biochemical laboratory abnormalities included anaemia (97.1%), leucocytosis (54.3%), hyperkalaemia (68.6%), severe metabolic acidosis (51.4%), hepatic dysfunction (74.3%), haemolysis (91.4%) and rhabdomyolysis (62.9%). The main complications included acute respiratory distress syndrome (ARDS) and encephalopathy in four (11.4%) patients each; gastrointestinal bleeding, hypertension and panniculitis in two (5.7%) patients each and one (2.9%) patient each developed intra-abdominal bleeding, stroke and polyserositis. Twenty-nine (83%) patients required dialysis. Ten (29%) patients died. A higher white blood cell count (P = 0.05) and the complications of ARDS (P = 0.004) and encephalopathy (P = 0.004) were associated with mortality. The kidney functions normalized at 5.5 +/- 2.6 weeks in patients who survived. Kidney biopsy was done in 13 patients. The predominant lesion was acute tubular necrosis (ATN) with or without pigmented granular cast in 10 (77%) patients. In four (30.8%) patients, the kidney biopsy showed severe ATN and in the other six (46.2%), the kidney biopsy showed features of ATN associated with mild to moderate acute interstitial nephritis (AIN). In three (23%) patients the histopathological examination revealed only moderate AIN and these patients were treated with a short course of steroids. Conclusions: AKI due to multiple Hymenoptera stings is severe and is associated with high mortality. On renal histology, ATN and AIN are common. PMID- 29340150 TI - Xylose: absorption, fermentation, and post-absorptive metabolism in the pig. AB - Xylose, as beta-1,4-linked xylan, makes up much of the hemicellulose in cell walls of cereal carbohydrates fed to pigs. As inclusion of fibrous ingredients in swine diets continues to increase, supplementation of carbohydrases, such as xylanase, is of interest. However, much progress is warranted to achieve consistent enzyme efficacy, including an improved understanding of the utilization and energetic contribution of xylanase hydrolysis product (i.e. xylooligosaccharides or monomeric xylose). This review examines reports on xylose absorption and metabolism in the pig and identifies gaps in this knowledge that are essential to understanding the value of carbohydrase hydrolysis products in the nutrition of the pig. Xylose research in pigs was first reported in 1954, with only sporadic contributions since. Therefore, this review also discusses relevant xylose research in other monogastric species, including humans. In both pigs and poultry, increasing purified D-xylose inclusion generally results in linear decreases in performance, efficiency, and diet digestibility. However, supplementation levels studied thus far have ranged from 5% to 40%, while theoretical xylose release due to xylanase supplementation would be less than 4%. More than 95% of ingested D-xylose disappears before the terminal ileum but mechanisms of absorption have yet to be fully elucidated. Some data support the hypothesis that mechanisms exist to handle low xylose concentrations but become overwhelmed as luminal concentrations increase. Very little is known about xylose metabolic utilization in vertebrates but it is well recognized that a large proportion of dietary xylose appears in the urine and significantly decreases the metabolizable energy available from the diet. Nevertheless, evidence of labeled D xylose-1-14C appearing as expired 14CO2 in both humans and guinea pigs suggests that there is potential, although small, for xylose oxidation. It is yet to be determined if pigs develop increased xylose metabolic capacity with increased adaptation time to diets supplemented with xylose or xylanase. Overall, xylose appears to be poorly utilized by the pig, but it is important to consider that only one study has been reported which supplemented D-xylose dietary concentrations lower than 5%. Thus, more comprehensive studies testing xylose metabolic effects at dietary concentrations more relevant to swine nutrition are warranted. PMID- 29340151 TI - Reference values for spirometry in elderly individuals: a cross-sectional study of different reference equations. AB - Background: Spirometry is the single most important test for the evaluation of respiratory function. The results are interpreted by comparing measured data with predicted values previously obtained from a reference population. Reference equations for spirometry have been discussed previously. The aim of this study was to compare reference values based on National Health and Nutrition Assessment Survey (NHANES III), European Community of Steel and Coal (ECSC), and Global Lung Initiative (GLI) equations in an elderly sample population. Methods: Subjects from the Geriatric Study on Health Effects of Air Quality in elder care centres who met the inclusion criteria were enrolled. Spirometry was performed according to international guidelines. The forced vital capacity, forced expiratory volume in 1 s, and FEV1/FVC ratio were reported as percentages of the predicted value, and the lower limit of normality was calculated. Results: Out of 260 elderly patients, 69.6% were women; the mean age was 83.0 +/- 6.46 years with an age range of 65-95 years. The lowest %FVC and %FEV1 values were obtained using the GLI reference equations. However, when NHANES III equations were used, the FEV1/FVC ratio was higher than ratios obtained from GLI and ECSC equations. The prevalence of airway obstruction was highest using ECSC equations, while GLI equations demonstrated more restrictive defects. Conclusions: The present study showed meaningful differences in the reference values, and consequently, in the results obtained using NHANES III, ECSC, and GLI reference equations. The spirometry interpretation was also influenced by the reference equations used. PMID- 29340152 TI - Impact of gas emboli and hyperbaric treatment on respiratory function of loggerhead sea turtles (Caretta caretta). AB - Fisheries interactions are the most serious threats for sea turtle populations. Despite the existence of some rescue centres providing post-traumatic care and rehabilitation, adequate treatment is hampered by the lack of understanding of the problems incurred while turtles remain entrapped in fishing gears. Recently it was shown that bycaught loggerhead sea turtles (Caretta caretta) could experience formation of gas emboli (GE) and develop decompression sickness (DCS) after trawl and gillnet interaction. This condition could be reversed by hyperbaric O2 treatment (HBOT). The goal of this study was to assess how GE alters respiratory function in bycaught turtles before recompression therapy and measure the improvement after this treatment. Specifically, we assessed the effect of DCS on breath duration, expiratory and inspiratory flow and tidal volume (VT), and the effectiveness of HBOT to improve these parameters. HBOT significantly increased respiratory flows by 32-45% while VT increased by 33-35% immediately after HBOT. Repeated lung function testing indicated a temporal increase in both respiratory flow and VT for all bycaught turtles, but the changes were smaller than those seen immediately following HBOT. The current study suggests that respiratory function is significantly compromised in bycaught turtles with GE and that HBOT effectively restores lung function. Lung function testing may provide a novel means to help diagnose the presence of GE, be used to assess treatment efficacy, and contribute to sea turtle conservation efforts. PMID- 29340153 TI - Temporal migration patterns between natal locations of ruby-throated hummingbirds (Archilochus colubris) and their Gulf Coast stopover site. AB - Background: Autumn latitudinal migrations generally exhibit one of two different temporal migration patterns: type 1 where southern populations migrate south before northern populations, or type 2 where northern populations overtake southern populations en route. The ruby-throated hummingbird (Archilochus colubris) is a species with an expansive breeding range, which allows opportunities to examine variation in the timing of migration. Our objective was to determine a relationship between natal origin of ruby-throated hummingbirds and arrival at a Gulf coast stopover site; and if so, what factors, such as differences in body size across the range as well as the cost of migration, might drive such a pattern. To carry out our objectives, we captured hummingbirds at a coastal stopover site during autumn migration, at which time we collected feathers from juveniles for analysis of hydrogen stable isotopes. Using the hydrogen stable isotope gradient of precipitation across North America and published hydrogen isotope values of feathers from populations of breeding ruby throated hummingbirds, we assigned migrants to probable natal latitudes. Results: Our results confirm that individuals from across the range (30-50 degrees N) stopover along the Gulf of Mexico and there is a positive relationship between arrival day and latitude, suggesting a type 1 migration pattern. We also found no relationship between fuel load (proxy for migration cost) or fat-free body mass (proxy for body size) and natal latitude. Conclusions: Our results, coupled with previous work on the spatial migration patterns of hummingbirds, show a type 1 chain migration pattern. While the mechanisms we tested do not seem to influence the evolution of migratory patterns, other factors such as resource availability may play a prominent role in the evolution of this migration system. PMID- 29340154 TI - The impact of sepsis, delirium, and psychological distress on self-rated cognitive function in ICU survivors-a prospective cohort study. AB - Background: Many intensive care unit (ICU) survivors develop psychological problems and cognitive impairment. The relation between sepsis, delirium, and later cognitive problems is not fully elucidated, and the impact of psychological symptoms on cognitive function is poorly studied in ICU survivors. The primary aim of this study was to examine the relationship between sepsis, ICU delirium, and later self-rated cognitive function. A second aim was to investigate the association between psychological problems and self-rated cognitive function 3 months after the ICU stay. Methods: Patients staying more than 24 h at the general ICU at the Karolinska University Hospital Solna, Stockholm, Sweden, were screened for delirium with the Confusion Assessment Method-ICU (CAM-ICU) during their ICU stay. Sepsis incidence and severity were recorded. Three months later, 216 patients received the Cognitive Failures Questionnaire (CFQ), Hospital Anxiety and Depression Scale (HADS), and Post-Traumatic Stress Symptoms-10 (PTSS 10) questionnaires via postal mail. Results: One hundred twenty-five patients (60%) responded to all questionnaires. Among respondents, the incidence of severe sepsis or septic shock was 42%. The overall incidence of delirium was 34%. Patients with severe sepsis/septic shock had a higher incidence of delirium, with an odds ratio (OR) of 3.7 (95% confidence interval (CI), 1.7-8.1). Self-rated cognitive problems 3 months post-ICU were found in 58% of the patients. We did not find any association between sepsis or delirium and late self-rated cognitive function. However, there was a correlation between psychological symptoms and self-rated cognitive function, with the strongest correlation between PTSS-10 scores and CFQ scores (r = 0.53; p < 0.001). Conclusions: ICU delirium is more common in severely septic/septic shock patients. In our cohort, neither severe sepsis nor ICU delirium was associated with self-rated cognitive function 3 months after the ICU stay. Ongoing psychological symptoms, particularly post traumatic stress was associated with worse self-rated cognitive function. Psychological symptoms need to be taken into account when assessing cognitive function in ICU survivors. PMID- 29340155 TI - Preservation of renal function by intensive glycemic control. AB - : We report the case of a 67-year-old Japanese woman with type 1 diabetes mellitus. At 47 years of age, her hemoglobin A1c (HbA1c) was 10.0%, and she had overt nephropathy. The first renal biopsy yielded a diagnosis of diabetic nephropathy. Intensive glycemic control was initiated and her HbA1c improved to 6.0%. Renal dysfunction showed no progression for 15 years. At 62 years of age, a second renal biopsy was performed. Glomerular lesions did not show progression but tubulointerstitial fibrosis and vascular lesions showed progression compared with the first biopsy. Intensive glycemic control can prevent the progression of glomerular lesions, but might not be effective for interstitial and vascular lesions. Learning points: Intensive control of blood glucose can prevent the progression of glomerular lesions.Intensive control of blood glucose may not be able to prevent progression of interstitial and vascular lesions.CSII reduces HbA1c without increasing the risk of hypoglycemia. PMID- 29340156 TI - Hepatotoxicity in hyperthyroid patient after consecutive methimazole and propylthiouracil therapies. AB - : Methimazole (MMI) and propylthiouracil (PTU) are widely used antithyroid drugs (ATD) that have been approved for the treatment of hyperthyroidism. Hepatotoxicity may be induced by these drugs, though they exert dissimilar incidence rates of hepatotoxicity and, possibly, with different underlying pathogenic mechanisms. We report the case of a 55-year-old woman with no relevant medical history diagnosed with hyperthyroidism due to Graves' disease, who developed two episodes of acute hepatitis concurrent with the consecutive administration of two different ATDs, first MMI and then PTU. Given the impossibility of administering ATDs, it was decided to perform a total thyroidectomy because the patient was found to be euthyroid at that point. Pathological anatomy showed diffuse hyperplasia and a papillary thyroid microcarcinoma of 2 mm in diameter. Subsequent clinical check-ups were normal. This case suggests the importance of regular monitoring of liver function for hyperthyroid patients. Due to the potential severity of this side effect, it is recommended to determine baseline liver function prior to initiation of treatment. Learning points: We present a rare case of two acute hepatitis episodes concurrent with two different consecutive ATD therapies.Our results highlight the relevance of a liver function monitoring during the treatment with MMI or PTU.A baseline assessment of the liver function before starting an ATD treatment should be recommendable. PMID- 29340157 TI - Hypocalcemia due to 22q11.2 deletion syndrome diagnosed in adulthood. AB - : Chromosome 22q11.2 deletion syndrome (22q11.2DS) is a genetic syndrome that may present with hypocalcemia due to primary hypoparathyroidism (PH) at any age. We report a new diagnosis of 22q11.2DS in a 57-year-old man who presented with symptomatic hypocalcemia. It is important to consider genetic causes of hypocalcemia due to PH regardless of age. Learning points: It is important to discard genetic cause of primary hypoparathyroidism in a patient without autoimmune disease or prior neck surgery.A new diagnosis of a hereditary disease has familial implications and needs genetic counselling.It is also important to discard other syndrome's comorbidities. PMID- 29340158 TI - Follicular thyroid cancer avid on C-11 Methionine PET/CT. AB - : A case of follicular thyroid cancer with intense focal Methionine uptake on 11C Methionine PET/CT is reported here. The use of 11C-Methionine PET in differentiated thyroid cancer is currently being investigated as a surrogate tracer compared to the more widely used 18F-FDG PET. This case illustrates the potential incremental value of this modality, not only in the localizing of parathyroid adenoma, but also indicating that 11C-Methionine PET might have a potential of increasing the pretest likelihood of thyroid malignancy in a cold nodule with highly increased Sestamibi uptake. Learning points: 11C-Methionine PET/CT and 18F-Fluorocholine PET/CT often visualizes the parathyroid adenoma in case of negative Tc-99m-MIBI SPECT/CT.A cold nodule in Tc-99m Pertechnetat thyroid scintigraphy with a negative Sestamibi scintigraphy has a very low probability of being malignant.However, the pretest likelihood of thyroid cancer in a cold nodule with increased Sestamibi uptake is low.11C-Methionine PET might have a potential incremental value in increasing the pretest likelihood of thyroid malignancy in a cold nodule with highly increased Sestamibi uptake. PMID- 29340159 TI - Recurrent lactic acidosis and hypoglycemia with inadvertent metformin use: a case of look-alike pills. AB - : Metformin is recommended as the first-line agent for the treatment of type 2 diabetes. Although this drug has a generally good safety profile, rare but potentially serious adverse effects may occur. Metformin-associated lactic acidosis, although very uncommon, carries a significant risk of mortality. The relationship between metformin accumulation and lactic acidosis is complex and is affected by the presence of comorbid conditions such as renal and hepatic disease. Plasma metformin levels do not reliably correlate with the severity of lactic acidosis. We present a case of inadvertent metformin overdose in a patient with both renal failure and hepatic cirrhosis, leading to two episodes of lactic acidosis and hypoglycemia. The patient was successfully treated with hemodialysis both times and did not develop any further lactic acidosis or hypoglycemia, after the identification of metformin tablets accidentally mixed in with his supply of sevelamer tablets. Early initiation of renal replacement therapy is key in decreasing lactic acidosis-associated mortality. Learning points: When a toxic ingestion is suspected, direct visualization of the patient's pills is advised in order to rule out the possibility of patient- or pharmacist-related medication errors.Though sending a specimen for determination of the plasma metformin concentration is important when a metformin-treated patient with diabetes presents with lactic acidosis, complex relationships exist between metformin accumulation, hyperlactatemia and acidosis, and the drug may not always be the precipitating factor.Intermittent hemodialysis is recommended as the first-line treatment for metformin-associated lactic acidosis (MALA).An investigational delayed-release form of metformin with reduced systemic absorption may carry a lower risk for MALA in patients with renal insufficiency, in whom metformin therapy may presently be contraindicated. PMID- 29340160 TI - Stereotactic body radiation therapy for the treatment of oligoprogression on androgen receptor targeted therapy in castration-resistant prostate cancer. AB - Castration-resistant prostate cancer is an incurable disease. To date, six agents abiraterone, enzalutamide, docetaxel, cabazitaxel, radium-223 and sipuleucel-T- have shown clinical efficacy in phase III clinical trials, leading to their FDA approval. Patients are typically sequenced through most or all of these agents, and then eventually succumb to their disease. Development of new treatments remains an unmet need. We report a case of a patient who progressed on enzalutamide with a single enlarging metastatic lesion, was treated with ablative stereotactic body radiation therapy while maintaining the same systemic treatment, who then had durable complete remission. Our findings have important clinical implications and suggest novel clinical trials for this difficult to treat disease. PMID- 29340161 TI - Direct ICE imaging from inside the left atrial appendage during ablation of persistent atrial fibrillation. AB - We present the case of a 59-year-old patient with persistent atrial fibrillation, referred for atrial fibrillation ablation. The procedure was performed with the help of NAVX 3D mapping system (Saint Jude Medical) and iLAB Ultra ICE Plus ultrasound imaging catheter (Boston Scientific). The catheter permits cross sectional images perpendicular to catheter's long axis. From inside left atrial appendage (LAA) looks trabeculated, due to pectinate muscles running parallel to each other. The presence of a thrombus was excluded from the appendage. The contractility of LAA was also assessed using multiple frames recorded on videotape. Our case demonstrates that LAA's morphology and function can be directly assessed by intracardiac ultrasound with the probe inserted inside the appendage. PMID- 29340162 TI - Iatrogenic myocarditis-biomarkers, cardiovascular MRI and the need for early diagnosis. PMID- 29340163 TI - The simplest method to classify CAM lesions. AB - CAM lesions are now seen as a significant pathology that could cause osteoarthritis of the hip joint. Currently there is no gold standard for classifying these lesions. We aim to show a simple method for classifying these lesions based on shape and position. Using CT 3D reconstruction, 91 preoperative CT scans from patients who had undergone hip arthroscopy for femoroacetabular impingement, were reconstructed to produce 3D images. Two senior hip surgeons have devised a simple four type classification system from previous experience. The system highlights the position and shape of different CAM lesions present in patients. The two senior surgeons and one junior surgeon reviewed the scans individually to assess whether the system could be used at all levels of surgical experience. The two senior surgeons agreed on which type of CAM lesion was present in all 91 cases. Intra observer reliability scores for the senior surgeons were 0.90 and 0.91. The junior surgeon reviewed the scans and disagreed on eight cases. This gave a Kappa co-efficient score of 0.87, which confirms a reliable system. We believe this classification system is simple and reproducible. It will aid surgeons in pre and intra-operative management of CAM lesions. Surgeons will be able to select the optimal portal placement and resect less capsule depending on the exact CAM lesion identified. This will potentially reduce complications and improve outcomes in junior hip arthroscopy surgeons. PMID- 29340164 TI - The 'Hip Vacuum Sign'-a new radiographic phenomenon in femoro-acetabular impingement. AB - Femoro-acetabular impingement (FAI) is a frequent cause for groin pain in young and active patients. We discovered a so far undescribed radiographic phenomenon only visible in frog-leg lateral radiographs. The aim of this study was to describe this new radiological sign, to determine its prevalence in a symptomatic population and to investigate the correlation to a potential underlying pathology. We retrospectively reviewed all patients, who had been sent to our clinic between 2010 and 2012 for hip complaints. We excluded patients older than 50 years and patients with advanced osteoarthritis. Two independent investigators blinded to clinical data independently examined all images for the presence, location and dimension of a vacuum phenomenon and a potential underlying hip pathology. We included 242 patients. 137 of them showed clinical and radiological signs of FAI. A hip vacuum phenomenon was identified in 20 of 242 patients (8%). Interestingly, all these patients showed distinct signs of femoro-acetabular impingement. In reference to this, the prevalence of the "Hip Vacuum Sign" was 15% (20/137) in symptomatic patients with FAI. There was no correlation with age or gender. We identified a new radiological sign, the "Hip Vacuum Sign", in 15% of symptomatic patients with FAI. It was only visible in frog-leg lateral radiographs. We suggest that it represents a subluxation of the femoral head due to a lever mechanism between the femoral neck and the acetabular rim and is, therefore, a hint for a relevant femoro-acetabular impingement mechanism. PMID- 29340165 TI - Nitric oxide induced by Indian ginseng root extract inhibits Infectious Bursal Disease virus in chicken embryo fibroblasts in vitro. AB - Infectious Bursal Disease is a severe viral disease of chicken responsible for serious economic losses to poultry farmers. The causative agent, Infectious Bursal Disease virus, is inhibited by nitric oxide. Root extract of the Indian ginseng, Withania somnifera, inhibits Infectious Bursal Disease virus in vitro. Also, Withania somnifera root extract is known to induce nitric oxide production in vitro. Therefore, the present study was undertaken to determine if the inhibitory activity of Withania somnifera against Infectious Bursal Disease virus was based on the production of nitric oxide. We show that besides other mechanisms, the inhibition of Infectious Bursal Disease virus by Withania somnifera involves the production of nitric oxide. Our results also highlight the paradoxical role of nitric oxide in the pathogenesis of Infectious Bursal Disease. PMID- 29340166 TI - Withdrawal of antihypertensive therapy in people with dementia: feasibility study. AB - Background: This study explored the feasibility of a randomised controlled withdrawal trial of antihypertensive medication in normotensive people with dementia. Feasibility aspects included response, recruitment, exclusion and drop out rates, suitability of outcome measures, acceptability of study procedures and an indicative economic evaluation for a randomised controlled trial. Methods: A cohort study attempting the withdrawal of antihypertensive drugs where appropriate and a feasibility study of home-based blood pressure monitoring, in people with dementia treated for hypertension, was undertaken. Interviews with participants and carers and an indicative economic evaluation were also undertaken. Results: Three hundred and sixty-two primary care practices in the East Midlands were contacted of which only 41 (11% (95%CI 8-15%)) agreed to support the study. These 41 practices posted 940 letters to potential participants. Thirty participants were enrolled in the cohort study of whom 9 were eligible for the antihypertensive withdrawal programme, 20 participated in a home blood pressure monitoring sub-group analysis and 12 took part in an interview study. Twenty-two of those enrolled in the cohort study were followed up at 6 months. The withdrawal programme was acceptable to participants and general practitioners (GPs). The study procedures including assessments and home blood pressure monitoring were acceptable to the participants and their carers. The economic evaluation was not possible. Conclusion: A withdrawal trial of antihypertensive medication in normotensive people with dementia may not be feasible in the UK because of low recruitment rates. PMID- 29340167 TI - Subcutaneous glucagon infusion and continuous glucose monitoring enable effective management of hypoglycemia in a patient with IGF-2-producing hemangiopericytoma. AB - Background: Ectopic insulin-like growth factor (IGF)-2 production is a rare complication of an array of epithelial and mesenchymal tumors, and can clinically manifest as life-threatening hypoglycemia. Case presentation: A 49-year-old woman with 13-year history of metastatic hemangiopericytoma, previously treated with multiple rounds of chemotherapy and palliative radiation, presented to the emergency department after a hypoglycemic seizure. On arrival, glucose was 18 mg/dL (1.0 mmol/L) and required continuous dextrose infusion for maintenance within normal limits. Insulin was <2.0 MUU/mL, C-peptide 0.1 ng/mL, and beta hydroxybutyrate <0.2 mmol/L. Random cortisol was 21 MUg/dL; sulfonylurea screen, and insulin antibodies were negative. IGF-2 level was 1320 ng/mL; IGF-1 was within normal limits and IGF binding protein (BP)-3 suppressed. Dexamethasone, started at 6 mg twice daily, allowed discontinuation of the glucose infusion. Given concern for nocturnal hypoglycemia, and patient interest in steroid-sparing anti-hypoglycemic regimen, she was also started on overnight continuous subcutaneous glucagon infusion via insulin pump. She was discharged with instructions to maintain a diet high in complex carbohydrates during the day, while utilizing glucagon pump at night. She was also started on continuous glucose monitoring system (CGMS) with an alarm to warn of hypoglycemia. Glucagon infusion rate was later titrated based on CGMS readings. Abdominal CT revealed increasing size of a right upper quadrant mass not previously subjected to radiotherapy. After radiation to this area, hypoglycemia improved, allowing further glucagon titration. In parallel, IGF-2 level declined to 380 ng/mL. Conclusions: Ectopic IGF-2 production is a rare but often fatal complication of many cancers, and should be considered on the differential diagnosis in patients with malignancy and unexplained hypoglycemia. Once hypoglycemia is diagnosed, patients often have end-stage disease. While treatment of the causative tumor is the only definitive intervention, anti-hypoglycemia therapy is a life-saving, temporizing measure. In this case, the patient attained euglycemia and survived 3 months after presentation before ultimately succumbing to other malignancy related complications. Given efficacy in management of hypoglycemia while awaiting definitive tumor-directed therapy, we submit nighttime subcutaneous glucagon infusion and CGMS are valuable additions to the physician's armamentarium in managing this condition. PMID- 29340168 TI - Evolution of the vertebrate neurocranium: problems of the premandibular domain and the origin of the trabecula. AB - The subdivision of the gnathostome neurocranium into an anterior neural crest derived moiety and a posterior mesodermal moiety has attracted the interest of researchers for nearly two centuries. We present a synthetic scenario for the evolution of this structure, uniting developmental data from living cyclostomes and gnathostomes with morphological data from fossil stem gnathostomes in a common phylogenetic framework. Ancestrally, vertebrates had an anteroposteriorly short forebrain, and the neurocranium was essentially mesodermal; skeletal structures derived from premandibular ectomesenchyme were mostly anterior to the brain and formed part of the visceral arch skeleton. The evolution of a one-piece neurocranial 'head shield' in jawless stem gnathostomes, such as galeaspids and osteostracans, caused this mesenchyme to become incorporated into the neurocranium, but its position relative to the brain and nasohypophyseal duct remained unchanged. Basically similar distribution of the premandibular ectomesenchyme is inferred, even in placoderms, the earliest jawed vertebrates, in which the separation of hypophyseal and nasal placodes obliterated the nasohypophyseal duct, leading to redeployment of this ectomesenchyme between the separate placodes and permitting differentiation of the crown gnathostome trabecula that floored the forebrain. Initially this region was very short, and the bulk of the premandibular cranial part projected anteroventral to the nasal capsule, as in jawless stem gnathostomes. Due to the lengthening of the forebrain, the anteriorly projecting 'upper lip' was lost, resulting in the modern gnathostome neurocranium with a long forebrain cavity floored by the trabeculae. PMID- 29340169 TI - Autoimmune retinopathy: A Review. AB - Autoimmune retinopathy (AIR) is a rare and still poorly understood immune mediated disease that may cause inflammation from circulating autoantibodies against the retina. It may be related to history of autoimmune disease in the patient or in a family member or the presence of neoplastic disease in the individual. The disease may be subdivided into paraneoplastic and non paraneoplastic AIR. When related to melanoma, it is referred to as MAR, and when related to other cancers, it is called CAR. The exact prevalence of AIR is unknown. It mainly affects older adults. Patients present with bilateral and asymmetric scotomas, photopsias, visual field defects, with rapidly progressive visual loss in late onset. In the initial stage, fundus examination is unremarkable, and in late stages, there is limited retinal epitheliopathy and vascular attenuation, with or without optic disc pallor, associated or not with intraocular inflammation and with no evidence of degenerative retinal disease. A clinical investigation with detailed anamnesis and laboratory tests should be performed to search for an associated neoplasm. Ophthalmologic and complementary examinations such as full-field electroretinogram, optical coherence tomography, visual field and fundus autofluorescence, help the diagnosis. Blood tests to search for autoantibodies should be requested. Management consists of prolonged immunosuppression, which may be combined with antioxidant vitamins. In general, the prognosis is uncertain, so the disease still needs to be better understood. More studies should be performed to improve diagnostic measures and define specific management that could preserve or even restore vision. PMID- 29340170 TI - From a national to an international journal: a new opportunity for the physiotherapy community. PMID- 29340171 TI - Passive standing as an adjunct rehabilitation intervention after stroke: a randomized controlled trial. AB - Background: Early physical rehabilitation enhances functional recovery in stroke survivors. Supported standing is a common adjunctive therapeutic practice in subjects with several central nervous diseases who are unable to stand actively. Data on the effect of supported positioning on standing frames in individuals with recent stroke are scarce and contradictory. Objectives: To verify if the addition of supported standing practice (SSP), delivered by means of a standing frame in two durations, to conventional physical therapy (CPT), may improve motor function, autonomy, and mobility in individuals with disability due to recent stroke. Methods: After baseline assessment, 75 participants with severe disability due to stroke, all receiving CPT, were randomly assigned to adjunctive 20 or 40 min of SSP, or CPT only (control). Motor function, autonomy, and mobility were assessed before and after training, and three months later. Results: All participants assessed received the planned dose of intervention. No adverse events of SSP were detected. Most outcome measures improved from baseline through the end of treatment and in the follow-up in all groups; the extent of change was comparable across the three randomization groups. Conclusions: In this randomized trial, SSP was unable to provide any sizeable adjunctive benefit, above and beyond CPT, in subjects with recent stroke. PMID- 29340172 TI - Can experienced physiotherapists identify which patients are likely to succeed with physical therapy treatment? AB - Background: The purpose of the study was to determine if clinician predicted prognosis is associated with patient outcomes. Methods: The study was a secondary analysis of data that were collected in 8 physiotherapy outpatient clinics. Nine physiotherapists with post-graduate training in manual therapy (mean 20.3 years of experience) were asked at baseline to project the outcome of the patients evaluated. In total, 112 patients with low back (74 %) or neck (26 %) pain were treated pragmatically with interventions consisting of manual therapy, strengthening, and patient-specific education. Outcomes measures consisted of percent change in disability (Oswestry or Neck Disability Index), self-reported rate of recovery (0-100 %), and percent change in pain (numerical pain rating scale). Hierarchical logistic regression determined potential factors (clinician predicted prognosis score (1-10) at baseline, dichotomised as poor (1-6) and good (7-10); symptom duration categorised as acute, subacute or chronic; same previous injury (yes/no); baseline pain and disability scores; within-session improvement at initial visit (yes/no); and presence of >= one psychological factor) associated with meaningful changes in each of the three outcomes at discharge (disability and pain > 50 % improvement, rate of recovery >=82.5 % improvement). Results: Clinician predicted prognosis (OR 4.15, 95%CI = 1.31, 13.19, p = 0.02) and duration of symptoms (OR subacute 0.24, 95%CI = 0.07, 0.89, p = 0.03; chronic 0.21, 95%CI = 0.05, 0.90, p = 0.04) were associated with rate of recovery, whereas only clinician predicted prognosis was associated with disability improvement (OR 4.28, 95 % CI 1.37, 13.37, p = 0.01). No variables were associated with pain improvement. Conclusions: Clinician predicted prognosis is potentially valuable for patients, as a good predicted prognosis is associated with improvements in disability and rate of recovery. PMID- 29340173 TI - Scoliosis: lower limb asymmetries during the gait cycle. AB - Background: Several studies indicate that the gait pattern of subjects suffering from scoliosis differs from the norm. However, there is conflicting evidence regarding the source of this discrepancy. Objective: To evaluate lower limb asymmetries in selected gait variables. Study design: A case-control study on lower limb asymmetries during gait which can be related to scoliosis. Methods: 31 subjects with scoliosis (Study Group - SG) and an equal comparative control sample (Control Group - CG) of subjects underwent objective gait analysis with the Vicon(r) motion caption system whilst walking at a comfortable speed along the gait laboratory walkway. Analysis was performed at three levels: (1) Asymmetry in the SG against asymmetry in the CG, (2) Difference in magnitude of asymmetry between the SG and CG, and (3) Global mean values in the SG vs. CG. The Paired Student T-Test was used for intra-group analysis whilst the Independent Student T-Test was used for inter-group analysis of the selected parameters, which include temporal parameters (stride length, stride time, step length, individual step speed, speed of gait, cadence, swing-to-stance ratio), ground reaction force (peak GRF values during Loading and Propulsion phases, vertical component only) and electromyography (peak EMG values and their time of onset, as a percentage of the gait cycle) of two lower limb muscles (Gastronemius and Vastus Medialis). Results: No intra-group variation was found to be significant. However, the speed of gait was found to be significantly slower (p = 0.03) in scoliotic subjects when compared to the norm, as a result of the shorter stride length (p = 0.002 and longer stride time (p = 0.001) in the SG. Furthermore, there was statistical significance in the time of onset of EMG peaks for the Lateral Gastrocnemius (p = 0.02) with regards to inter-group difference in magnitude of lower limb asymmetry and global mean values. Conclusions: Scoliosis is a tri-planar deformity which has some impact on the gait pattern. This research study concludes that scoliotic subjects have a slower speed of gait due to a shorter stride length and a longer stride time, together with variations in the timing of muscle activation. PMID- 29340174 TI - Daily functional electrical stimulation during everyday walking activities improves performance and satisfaction in children with unilateral spastic cerebral palsy: a randomized controlled trial. AB - Background: The aim of this paper is to determine whether daily functional electrical stimulation (FES) is effective in improving self-perceptions of individually identified mobility performance problems in children with unilateral spastic cerebral palsy (USCP). We hypothesized that children receiving 8 weeks of FES treatment would have higher scores for self-perceived performance and satisfaction on the Canadian Occupational Performance Measure (COPM) for individually identified priorities than children not receiving FES. Methods: Thirty-two children (mean age 10 y 8 mo SD 3y 3mo) with USCP and a Gross Motor Function Classification System I or II were randomly assigned to the FES treatment group (8 weeks of daily FES) and control group (usual treatments). Participants were assessed at baseline (week 0), post treatment (week 8) and 6 weeks follow-up (week 14). The primary outcome measures were self-perceived scores for performance and satisfaction of child- and parent-identified priorities assessed using the COPM post treatment and at follow-up. The secondary outcome measures were the categorization of the performance problems from the COPM and self-report responses according to the International Classification of Functioning Child and Youth version (ICF-CY). This was clinically important because an understanding of mobility performance problems for children with USCP is needed for family-centred service planning. Results: Performance scores (mean difference 1.6, 95 % CI 0.1 to 3.2, p = 0.034) and satisfaction scores post treatment (mean difference 2.4, 95 % CI 0.5 to 4.2, p = 0.004) were significantly higher in the treatment group than in the control group. There were no significant differences between the groups for performance scores at follow up, however there was a significant difference between the groups for satisfaction (mean difference 1.9, 95 % CI 0.1 to 3.8, p = 0.03) in favour of the treatment group. Priorities were identified across all levels of the ICF-CY but were most commonly identified in the activity and participation domains of the ICF-CY (79.5 %). Conclusions: Daily FES applied during everyday walking is effective in addressing self-perceptions of individually identified priorities by improving the performance and satisfaction of functional skills after treatment. Trial registration: Australian New Zealand Clinical Trials Register ACTRN12614000949684. Registered 4 September 2014. PMID- 29340175 TI - Proprioceptive Based Training for stroke recovery. Proposal of new treatment modality for rehabilitation of upper limb in neurological diseases. AB - Background: The central nervous system (CNS) has plastic properties allowing its adaptation through development. These properties are still maintained in the adult age and potentially activated in case of brain lesion. In the present study authors hypothesized that a significant recovery of voluntary muscle contraction in post stroke patients experiencing severe upper limb paresis can be obtained, when proprioceptive based stimulations are provided. Proprioceptive based training (PBT) is based on performing concurrent movements with both unaffected and affected arm, with the aim to foster motor recovery through some mutual connections of interhemispheric and transcallosal pathways. The aim of this pre post pilot study was to evaluate the feasibility of PBT on recovery of voluntary muscle contraction in subacute phase after stroke. Methods: The treatment lasted 1 h daily, 5 days per week for 3 weeks. The PBT consisted of multidirectional exercises executed synchronously with unaffected limb and verbal feedback. The Medical Research Council scale (MRC), Dynamometer, Fugl-Meyer Upper Extremity scale (F-M UE), Functional Independence Measure scale (FIM) and modified Ashworth scale were administered at the beginning and at the end of training. Statistical significance was set at p < 0.05. Results: Six patients with severe paresis of the upper limb within 6 months after stroke were enrolled in the study (5 ischemic and 1 hemorrhagic stroke, 3 men and 3 women, mean age 65.7 +/- 8.7 years, mean distance from stroke 4.1 +/- 1.5 months) and all of them well tolerated the training. The clinical changes of voluntary muscle contraction after PBT were statistically significant at the MRC scale overall (p = 0.028), and dynamometer assessment overall (p = 0.028). Each patient improved muscle contraction of one or more muscles and in 4 out of 6 patients voluntary active movement emerged after therapy. The functional outcomes (i.e. F-M UE and FIM) did not show significant change within group. Conclusions: The findings of this preliminary research revealed that PBT may be a feasible intervention to improve the motricity of upper limb in stroke survivors. PMID- 29340176 TI - To sit or stand? A preliminary, cross sectional study to investigate if there is a difference in glenohumeral subluxation in sitting or standing in people following stroke. AB - Background: Glenohumeral subluxation (GHS) is a common symptom following stroke. Many therapists postulate that GHS may be reduced if the base of support (BOS) is reduced and the centre of mass (COM) is raised as this requires greater postural muscle activity. However, there is little empirical evidence to support this practice. Objective: The aim of this preliminary study was to investigate if the amount of GHS alters from sitting to standing. Study design: A cross sectional, within-subject design in a convenience sample of 15 stroke patients with GHS was utilised. Methods: A prospective design was used with a single blinded tester who assessed GHS using the calliper method in sitting, standing and on return to sitting. Friedman and post hoc Wilcoxon tests showed that GHS was significantly reduced in standing compared to sitting (p <0.05) but this reduction was not maintained on return to sitting (p = 0.25). Conclusions: The results of this study are limited by its small size. However, these results indicate that reducing BOS during rehabilitation may improve GHS after stroke. Whilst the maintenance of benefit is not established, these findings suggest that reducing BOS as part of treatment may help patients with GHS. Further research is now required to replicate these results in a larger sample and to directly examine shoulder muscle activity to investigate which muscles may influence GHS in response to changing BOS. Future work could also aim to determine whether the reduction in GHS was directly attributable to a reduced BOS or the effort associated with moving from sitting to standing. PMID- 29340177 TI - Finite helical axis for the analysis of joint kinematics: comparison of an electromagnetic and an optical motion capture system. AB - Background: The analysis of joints kinematics is important in clinical practice and in research. Nowadays it is possible to evaluate the mobility of joints in vivo with different motion capture techniques available in the market. Optical systems use infrared cameras and reflective markers to evaluate body movements, while other systems use electromagnetic fields to detect position and orientation of sensors. The aim of this study was the evaluation of two motion capture systems based on different technologies (optical and electromagnetic) by comparing the distribution of finite helical axis (FHA) of rotation during controlled rotations of an object in different positions. Methods: The distribution of position and angle errors of the FHA were extracted by optical and electromagnetic system recordings during a controlled rotation of a low friction stool in different positions in a controlled environment. Results: The optical motion capture system showed lower angle and position errors in the distribution of FHA while the electromagnetic system had higher errors that increased with increasing distance from the antenna. Conclusions: The optical system showed lower errors in the estimation of FHA that could make it preferable with respect to electromagnetic systems during joint kinematics. PMID- 29340178 TI - Factors associated with citation rate of randomised controlled trials in physiotherapy. AB - Background: Despite the use of citation rate as a measure of quality of research is strongly criticized and debated, it remain a widely used method to evaluate performances of researchers, articles and journals. The aim of this study was to test which factors are associated with citation rate of Randomised Controlled Trials (RCTs) published on the physiotherapy field. Methods: All RCTs abstracted in the Physiotherapy Evidence Database (PEDro), indexed in Scopus database and published in 2008 were included. PEDro score, language of publication, indexing in PubMed database, type of access to articles, subdiscipline, the number of authors, the country where the study was performed, the type of institution where the study was conducted and the number of centres involved in the study (multicentric vs single-centre). and the 2013 5-year impact factor of the publishing journals were considered as independent variables. Citation rate until December 2013 was extracted from Scopus database and used as dependent variable. Results: Six hundred and nineteen RCTs, published in 283 journals, were included and analysed. The 5-year impact factor was the strongest variable associated with the citation rate and explained approximately 50 % of the variance, and the number of authors explained an additional small part (about 1 %) of variability. The other variables were excluded from the model. Conclusions: The study highlights that 5-year Impact Factor, not accessibility (language of publication, indexing in PubMed database or the type of access to articles) or reported quality (PEDro score), is a strong predictor of the number of citations for RCTs in the physiotherapy field. Our findings support the increasingly widespread idea that citation analysis does not reflect the scientific merit of the cited work, at least in terms of reported quality.The results of this study need to be confirmed with a publication window larger than one year. PMID- 29340179 TI - Comparative efficacy of three active treatment modules on psychosocial variables in patients with long-term mechanical low-back pain: a randomized-controlled trial. AB - Background: Psychosocial factors precipitate and perpetuate the risk of developing long-term Low-Back Pain (LBP) with resultant disability. However, management of psychosocial aspects of LBP still remains a major challenge. This study investigated the effect of static or dynamic back extensors endurance exercise on psychosocial variables of Fear-Avoidance Behaviour (FAB), Pain Self Efficacy Belief (PSEB) and Back Pain Consequences Belief (BPCB) in patients with LBP. Methods: A randomized-controlled trial of 67 patients assigned into McKenzie Protocol (MP) group (n = 25), MP and Static Endurance Exercise Group (MPSEEG; n = 22); and MP and Dynamic Endurance Exercise Group (MPDEEG; n = 20) was carried out. Treatment was applied thrice weekly for eight weeks. Results: The groups were comparable in general and baseline psychosocial parameters (p > 0.05). The different regimens had significant effects on all outcome parameters across baseline, 4th and 8th week (p < 0.05). The regimens were comparable in mean change scores on BPCB and FAB at the 4th and 8th week respectively (p > 0.05). MPDBEEG had higher mean change in PSEB at the 4th and 8th week respectively. Conclusions: McKenzie Protocol alone, or in combination with static or dynamic back extensors endurance exercise has comparable effect on FAB, PSEB and BPCB in patients with LBP. The addition of dynamic endurance exercise to the MP led to significantly higher positive effects on PSEB. PMID- 29340180 TI - Interrater and intrarater reliability and minimal detectable change of the Wisconsin Gait Scale when used to examine videotaped gait in individuals post stroke. AB - Background: Often, interventions targeting the kinematic and temporal and spatial changes in gait commonly seen after a stroke are based on observations of walking. Having the capacity to objectively identify such changes and track improvements over time using reliable and valid measures is important. The Wisconsin Gait Scale (WGS), which is comprised of 14 items, was developed specifically to examine and document gait changes occurring after a stroke. The purpose of the study was to explore the interrater and intrarater reliability and minimal detectable change (MDC) of the WGS when used by physical therapists to examine gait in adults post-stroke. Methods: Fourteen physical therapists from 3 different acute inpatient rehabilitation centers rated videotapes of the gait of 6 adults post-stroke using the WGS. To minimize subject variability from fatigue, videotapes created by using 4 cameras provided right and left lateral, anterior, and posterior views of walking on a level surface. One complete ambulation trial from each subject post-stroke, which included 4 views of the same ambulation trial, was examined by the licensed physical therapists using the WGS. An opportunity was provided to review the tool and a practice trial was performed using an additional videotape not included in the analysis. Gait was examined on 2 different occasions separated by a period of approximately 21 days to minimize the effects of recall bias. Intraclass Correlation Coefficients (ICC) were used to examine the interrater and intrarater reliability of the WGS. Results: Interrater (ICC = 0.83) and intrarater (ICC = 0.91) reliability were both good. The standard error of the measurement (SEM) was 1.47 and the MDC95 was 4.24. There was no statistically significant difference between the scores on the WGS when comparing the 2 different sessions. Conclusions: The WGS shows promise as an instrument that can make observational gait analysis more reliable. High intrarater reliability and low SEM suggests that the WGS is stable when administered across multiple sessions by the same rater. The ICC for interrater reliability was also good, which suggests that multiple examiners can effectively use the instrument. With minimal training, the physical therapists in the study were able to produce highly reliable results using the WGS to objectively document gait dysfunction. PMID- 29340181 TI - Effects of walking on bilateral differences in spatial attention control: a cross over design. AB - Background: Walking requires a high attentional cost for balance control and interferes with the control of attention. However, it is unclear whether the performance of visual spatial attention control, which is one of the functions of attention control, is also decreased during walking. In addition, although previous studies have shown right-hemispheric dominance and lower ability of left side visual spatial attention control during sitting, it remains unknown whether walking accentuates bilateral differences in visual spatial attention control. We tested the hypothesis that walking interferes with visual spatial attention control on both sides and accentuates its bilateral differences. Methods: Twenty healthy right-handed subjects (24.3 +/- 2.0 years) participated in this study. Subjects performed a random stimulus-response compatibility (SRC) task during both sitting and walking situations. To evaluate the effects of walking, reaction time was measured on both sides for the two situations. In comparison to the both situations (sitting and walking), the amount of change of the SRC effect on both sides was used. In the comparing the bilateral difference (left and right), the difference of the SRC effect was evaluated in each situation. The paired t-test was applied to both comparisons for statistical analysis. Results: The SRC effect on both sides during walking was significantly larger than during sitting (P < 0.05). In addition, walking significantly accentuated the bilateral differences in visual spatial attention control (P < 0.05). Conclusions: These results suggest that walking affects the performance of visual spatial attention control on both sides and accentuates its bilateral differences. These results have implications for development of practice methods of gait disorder with higher brain dysfunction. PMID- 29340182 TI - Differences in personal and lifestyle characteristics among Zimbabwean high school adolescents with and without recurrent non-specific low back pain: a two part cross-sectional study. AB - Background: Recurrent non-specific low back pain (NSLBP) is increasingly becoming common among adolescents worldwide. A recent study in Zimbabwe showed a relatively high prevalence (28.8 %) among high school students. Influential associated factors, however, remain unclear. This is a significant shortcoming. The aim was to determine personal or lifestyle-related factors associated with recurrent NSLBP among high school adolescents in Harare, Zimbabwe. Methods: This study was part of a large epidemiological study conducted in two continuous parts. Part one sought to determine self-reported associated factors among 532 participants (mean age =16 +/- 1.72 years) drawn randomly from selected government schools using a reliable and content-validated questionnaire (Kappa coefficient, k = 0.32-1). Part two purposively identified adolescents (N = 64, median age =17 years, interquartile range, IQR = 15-18 years) with a history of 'severe' recurrent NSLBP from part one based on a specific eligibility criteria and compared body mass index, relative school bag weight and hamstring flexibility with matched adolescents without NSLBP. Data was analysed using Statistica version 11. Independent t-tests or chi2 tests of association were used for continuous and categorical data, respectively. The statistical significance was set at p < .05. Results: Recurrent NSLBP was associated with self-reported factors such as perceptions of a heavy school bag [chi2 (1) = 85.9, p < 0.001]. A significant proportion of adolescents with recurrent NSLBP spent over 30 min carrying the school bag to and from school [chi2 (1) =32.2, p < 0.001]. It was also associated with prolonged sitting (p < 0.001), not playing sports [chi2 (1) =5.85, p = 0.02] and tight hamstrings [chi2 (1) =7.6, p = 0.006]. Conclusions: Although conclusions from this study are hesitant because of the cross-sectional nature of the study and the relatively small sample size in follow-up study, recurrent NSLBP is associated with perceptions of a heavy school bag, duration of school bag carriage, no sports participation, prolonged sitting on entertainment activities, and tight hamstrings. These findings add to the importance of promoting physical activity at school or home especially aimed at improving muscle flexibility. PMID- 29340183 TI - Action observation training to improve motor function recovery: a systematic review. AB - Following the discovery of Mirror Neuron System (MNS), Action Observation Training (AOT) has become an emerging rehabilitation tool to improve motor functions both in neurologic and orthopedic pathologies. The aim of this study is to present the state of the art on the use of AOT in experimental studies to improve motor function recovery in any disease. The research was performed in PubMed, PEDro, Embase, CINAHL and Cochrane Central Register of Controlled Trials (last search July 2015). Randomized controlled trials (RCTs) that analyse efficacy of AOT for recovery of motor functions, regardless of the kind of disease, were retrieved. The validity of the included studies was assessed using the Cochrane Collaboration tool for evaluating risk of bias. Twenty RCTs were eligible. Four studies showed AOT efficacy in improving upper limb functional recovery in participants with chronic stroke, two studies in sub-acute ones and one in acute ones. Six articles suggested its effectiveness on walking performance in chronic stroke individuals, and three of them also suggested an efficacy in improving balance. The use of AOT was also recommended in individuals with Parkinson's disease to improve autonomy in activities of daily living, to improve spontaneous movement rate of self-paced finger movements and to reduce freezing of gait. Other two studies also indicated that AOT improves upper limb motor function in children with cerebral palsy. The last two studies, showed the efficacy of AOT in improving motor recovery in postsurgical orthopedic participants. Overall methodological quality of the considered studies was medium. The majority of analyzed studies suggest the efficacy of AOT, in addition to conventional physiotherapy, to improve motor function recovery in individuals with neurological and orthopedic diseases. However, the application of AOT is very heterogeneous in terms of diseases and outcome measures assessed, which makes it difficult to reach, to date, any conclusion that might influence clinical practice. PMID- 29340184 TI - Aerosol delivery practice in Italian Cystic Fibrosis centres: a national survey. AB - Background: Physiotherapists (PTs) are ideally positioned to assist patients and families with inhalation therapies through monitoring, communication and education about available therapies and their proper use; indeed aerosoltherapy management is listed as part of Italian PTs' core competence and in the core syllabus for post-graduate training in respiratory physiotherapy. The aim of this study was to outline the involvement of Italian PTs working in Cystic Fibrosis (CF) centres in the aerosol delivery practice. Methods: Physiotherapist coordinators (n = 29) of all Italian CF centres were invited to participate in a cross-sectional survey and a semi-structured questionnaire was developed and sent by e-mail. Results: A response rate of 69 % was achieved. The majority of participants were woman and the overall mean professional experience was twenty years. Italian PTs are involved in the aerosol delivery practice, managing education, drug-device combination, dilution and mixing of drugs. Conclusions: Physiotherapists play a key role in the care of Italian CF patients; nevertheless the Italian Group of Physiotherapists might plan interventions to harmonize the aerosol delivery practice in Italian CF centres and to sustain continuing education. PMID- 29340185 TI - Physical fitness of Ghanaian physiotherapists and its correlation with age and exercise engagement: a pilot study. AB - Background: The physical job demands of physiotherapists require optimal level of physical fitness (PF), which is often not evaluated in practice. In this study, we assessed selected components of physical fitness of Ghanaian physiotherapists in relation to their sex, age and frequency of exercise participation. Methods: Physiotherapists practicing in four major hospitals within the Accra Metropolis of Ghana were enrolled into this cross-sectional survey. Three major components of physical fitness (flexibility, cardiorespiratory endurance and body composition) were assessed with sit and reach test, 3-min step test and BMI respectively. Unpaired sample t-test was used to determine differences in means of the three components of physical fitness betwwen males and females. Pearson correlation coefficient showed that frequency of exercise engagement and age of the participants correlated with the three components of physical fitness at p < 0.05. Results: The study sample consisted of 40 participants, out of which 23 (58 %) were females. The mean age was (31.5 +/- 1.4) years and majority 21 (52.5 %) was within the age range of 20-29 years. Respective mean scores for cardiorespiratory endurance, flexibility and BMI were (98.2 +/- 12.9 beat/min), (4.03 +/- 6.15 cm) and (23.3 +/- 3.4 kg/m2). Female participants were significantly more flexible than their male counterparts (5.7 +/- 5.3; 1.6 +/- 6.6, p = 0.034). There was a positive and significant correlation between the age of the participants and BMI (r = 0.614 and p = 0.017). However, cardiorespiratory endurance was not significantly correlated with age and frequency of exercise engagement. Conclusions: The sampled physiotherapists had relatively low physical fitness compared to the age adjusted values. Age and sex are therefore crucial determinants whilst designing programmes aimed at promoting physical fitness in this group. PMID- 29340187 TI - Motor rehabilitation should be based on knowledge of motor control. AB - Neurorehabilitation is at a crossroads. Indeed, there is inconclusive, but promising evidence about clinical effectiveness of rehabilitation in the field of neurological impairments. Translating the new theories on motor control into clinical research may help to develop new treatment strategies and guide rehabilitation approaches. The concepts of synergy and the uncontrolled manifold hypothesis provide a strong theoretical framework to explain how the nervous system controls and coordinates movements, ensuring stability during daily actions. Moreover, this approach can increase the understanding of the neural control of action stability with implications for clinical practice and may help the development of new treatment strategies. PMID- 29340188 TI - At discharge gait speed and independence of patients provides a challenges for rehabilitation after total joint arthroplasty: an observational study. AB - Background: The level of functioning in people discharged from hospital after hip arthroplasty is very heterogeneous and prognostic factors are not fully understood. The aim of this study was to determine the mean level of autonomy achieved by such patients at discharge from hospital using the Iowa Level of Assistence (ILOA) scale as a measurement tool and to investigate the possible predictive factors of this autonomy. Methods: It was conducted a prospective cohort study including hip arthroplasty patients treated consecutively in 2012. Hip arthroplasty patients following fractures, revision surgery and partial replacement were excluded, as well as patients with concomitant neurologic or rheumatologic diseases or postoperative complications that did not allow to continue the rehabilitation program, and patients with a hospitalization of more than 7 days. During the last 24 h of hospital stay the physiotherapist filled in the ILOA scale and collected all data (age, gender, number of physiotherapy treatments, length of hospitalization). Statistical analysis (univariate and multivariate analysis) was performed between the variables collected and the ILOA Score. Results: The sample was composed of 167 patients. The mean score of the ILOA was 16.6 (+/-6.5) and gait speed had the poorest outcome 0.19 m/s - 0.43 m/s. Multivariate analysis showed that older women are most at risk of not achieving good levels of autonomy. Conclusions: In hip arthroplasty patients at discharge from hospital gait speed is severely impaired. The challenge for rehabilitation should be to recover walking ability and efficiency starting from the early post-operative period. Gender- and age-tailored rehabilitation programs should be considered by placing particular attention on elderly women. PMID- 29340189 TI - A cross-sectional study investigating impressions and opinions of medical rehabilitation professionals on the effectiveness of the Ponseti method for treatment of clubfoot in Harare, Zimbabwe. AB - Background: The Ponseti method of managing clubfoot was introduced in Zimbabwe in 2011. This followed massive training of health workers such as medical rehabilitation practitioners through a programme called the Zimbabwe Sustainable Clubfoot Programme. Today, the Ponseti method is the technique of choice for managing clubfoot in hospitals. However, since then, there is no published evidence documenting the efficacy and the relevance of the technique especially comparing to previously used methods. This is a significant shortcoming if sustainability issues are to be considered. Therefore, this study was designed to investigate the impressions and opinions of medical rehabilitation practitioners on the method in terms of its effectiveness, perceived challenges and possible recommendations for improvement of the technique application in their setting. Methods: A descriptive cross-sectional study was conducted targeting medical rehabilitation practitioners previously trained on the method and working in public or private clinics that offer clubfoot management in Harare. A questionnaire was self-administered to 41 participants who volunteered to participate in the study. Data from open-ended questions was analysed thematically. Statistica version 12 was used for analysis for quantitative data. Results: The Ponseti method was perceived as an effective method in the treatment of children with clubfoot by all the participants. All the participants 41 (100 %) felt that the method was relevant because of better clinical outcomes. Amongst challenges faced when using Ponseti method, 25 (61 %) participants agreed that caregivers to the children with clubfoot were not compliant to treatment. A total of 22 (54 %) participants felt that lack of adequate insight by the caregivers of this new method was a challenge which hinder progress in treating clubfoot. Conclusions: The medical rehabilitation professionals in Harare, Zimbabwe trained to use the Ponseti technique for the management of clubfoot, perceived the method as an effective method resulting in better clinical outcome than previous methods. This probably highlights the need to continue training medical rehabilitation professionals so that there is widespread use of the technique in the country. However, there is need to increase awareness of the method among caregivers to improve compliance, which is key to successful rehabilitation of the clubfoot. PMID- 29340190 TI - Consequences and management of neck pain by female office workers: results of a survey and clinical assessment. AB - Background: Neck pain is common in office workers. However, the functional consequences of this pain to the individual and how they are managed are not well known. The objective of this study is understand the impact of neck pain and the strategies female office workers use to manage their pain while remaining at work. Methods: Female office workers with neck pain (n = 174) completed a survey about the impact of their neck pain, with 51 attending a university clinic for further assessment. Consequences of neck pain were evaluated with questions on self-reported work absence, workers' compensation claims, health care use, impact on work and leisure activity, and management strategies. Responses to survey questions were analysed using descriptive analyses. Results: The results showed that during the preceding 12 months, 57.5 % of participants had consulted a health professional due to neck pain; 42 % had reduced their leisure activities; 22.4 % had reduced their work activity and 20.7 % had been absent from work. Only 5.2 % had ever submitted a workers' compensation claim and 9 % indicated changing jobs due to neck pain. Of the 51 participants who attended for further assessment, 35.3 % indicated they 'self-managed' their neck pain with conventional medical strategies. Common strategies utilized were: prescription or over-the-counter medications (82.5 %), physiotherapy (64.7 %) and visiting their general medical practitioner (54.9 %). Conclusions: Although the severity of neck pain experienced by female office workers in this study was low, the impact on work and leisure was substantial. These workers tended to self-manage their pain by reducing work and/or leisure activity and utilizing passive coping strategies to remain at work. Physiotherapists are ideally suited to provide self-management strategies to ensure workers remain healthy while working. PMID- 29340192 TI - Use of social media among Italian physiotherapists: a new opportunity for the profession or an unfavorable trend toward guruism? AB - The advent of social media such as Facebook has introduced new opportunities for knowledge sharing and professional networking. Currently, little is known on how physiotherapists participate in virtual communities, and there are opposing views regarding the benefits and pitfalls of professional use of social media. In this letter, theoretical frameworks are proposed by analyzing the behavior of users and the post contents on Italian pages dedicated to physiotherapy. There is also an urgent need to evaluate whether virtual communities may improve final patient outcomes. PMID- 29340191 TI - Patient-reported outcome measures for non-specific neck pain validated in the Italian-language: a systematic review. AB - Background: Patient-reported outcome measures can improve the management of patients with non-specific neck pain. The choice of measure greatly depends on its content and psychometric properties. Most questionnaires were developed for English-speaking people, and need to undergo cross-cultural validation for use in different language contexts. To help Italian clinicians select the most appropriate tool, we systematically reviewed the validated Italian-language outcome measures for non-specific neck pain, and analyzed their psychometric properties and clinical utility. Methods: The search was performed in MEDLINE, EMBASE, CINAHL, Scopus, Web of Science, and Cochrane Library. All articles published in English or Italian regarding the development, translation, or validation of patient-reported outcome measures available in the Italian language were included. Two reviewers independently selected the studies, extracted data, and assessed methodological quality using the COSMIN checklist. Results: Out of 4891articles screened, 66 were eligible. Overall, they were of poor or fair methodological quality. Four instruments measuring function and disability (Neck Disability Index, Neck Pain and Disability Scale, Neck Bournemouth Questionnaire, and Core Outcome Measures Index), and one measuring activity-related fear of movement (NeckPix(c)) were identified. Each scale showed some psychometric weaknesses or problems with functioning, and none emerged as a gold standard. Conclusions: Several patient-reported outcome measures are now available for assessing Italian people with non-specific neck pain. While the Neck Disability Index is the one most widely used, the Neck Bournemouth Questionnaire appears the most promising tool from a psychometric point of view. PMID- 29340193 TI - Implementation of the physical function ICU test tool in a resource constrained intensive care unit to promote early mobilisation of critically ill patients- a feasibility study. AB - Background: The shift of focus in outcome measures from mortality to assessment of functional status in intensive care unit (ICU) patients has resulted in the emergence of mobilisation of critically ill patients as a standard physiotherapy practice in most medium and high income countries. The aim of this study was to determine the feasibility of an early mobilisation program and to report on the changes in patient clinical outcomes following the intervention in a low income country. Methods: A prospective cohort study was carried out at one public hospital. An adult cohort of 35 patients was recruited within 24 h of being admitted into the unit, irrespective of ventilation method over a period of three months. An early mobilisation programme was implemented and prescribed using the Physical Function ICU Test (PFIT-s) which commenced in either the ICU or high dependent unit. Results: The median age of the 35 patients was 29 years (IQR = 24 45 years). More than half of the patients had undergone surgery due to either gastrointestinal problems or obstetrical complications. A total of 94 out of a possible of 219 exercise sessions were delivered to the patients (43.0 %). The tool was implemented in 32 (91.4 %) patients on the initial PFIT-s measurement and 16 (45.7 %) of the patients required the assistance of two people to stand. The Initial PFIT-s mean score was 5.3 +/- 1.8. On final PFIT-s measurement, out of the 30 (85.7 %) patients seen, 15 (42.9 %) of the patients did not require any assistance to stand and the final PFIT-s mean score was 7.0 +/- 1.9. There was a significant difference in both the initial PFIT-s total score (t-value = 2.34, df = 30, p = .03) and the final PFIT-s score (t-value = 3.66, df = 28, p = .001) between males and females. During the treatment, no adverse event occurred in any of the patients. Conclusion: An early mobilisation program using PFIT-s was feasible and safe. There was a difference in functional capability based on gender, with males being more functionally active. Specific inclusion and exclusion criteria can lead to a delayed early mobilisation activities in ICU patients. Trial registration: Pan African Clinical Trials Registry PACTR201408000829202. Registered 15 August 2014. PMID- 29340194 TI - Measurement properties of the upright motor control test for adults with stroke: a systematic review. AB - Background: The Upright Motor Control Test (UMCT) has been used in clinical practice and research to assess functional strength of the hemiparetic lower limb in adults with stroke. It is unclear if evidence is sufficient to warrant its use. The purpose of this systematic review was to synthesize available evidence on the measurement properties of the UMCT for stroke rehabilitation. Methods: Electronic databases that indexed biomedical literature were systematically searched from inception until October 2015 (week 4): Embase, PubMed, Web of Science, CINAHL, PEDro, Cochrane Library, Scopus, ScienceDirect, SPORTDiscus, LILACS, DOAJ, and Google Scholar. All studies that had used the UMCT in the time period covered underwent hand searching for any additional study. Observational studies involving adults with stroke that explored any measurement property of the UMCT were included. The COnsensus-based Standards for the selection of health Measurement INstruments was used to assess the methodological quality of included studies. The CanChild Outcome Measures Rating Form was used for extracting data on measurement properties and clinical utility. Results: The search yielded three methodologic studies that addressed criterion-related validity and contruct validity. Two studies of fair methodological quality demonstrated moderate-level evidence that Knee Extension and Knee Flexion subtest scores were predictive of community-level and household-level ambulation. One study of fair methodological quality provided limited-level evidence for the correlation of Knee Extension subtest scores with a laboratory measure of ground reaction forces. No published studies formally assessed reliability, responsiveness, or clinical utility. Limited information on responsiveness and clinical utility dimensions could be inferred from the included studies. Conclusions: The UMCT is a practical assessment tool for voluntary control or functional strength of the hemiparetic lower limb in standing in adults with stroke. Although different levels of evidence suggest that the Knee Extension and Knee Flexion subtests may possess criterion and construct validity, the lack of published literature examining content validity, reliability, and responsiveness raises questions regarding the use of the UMCT in routine clinical practice. These key findings highlight the need to further investigate the UMCT's measurement properties toward enhancing its standardization. PMID- 29340195 TI - Combined treatment with paraffin, manual therapy, pegboard and splinting in a patient with post-traumatic stiff hand. AB - Background: The stiff hand is a still common, severe complication of hand injuries. Case presentation: We report here the case of a 56 year-old woman, professional goldsmith, who suffered a distal radius fracture of her right hand. The patient was treated with surgery followed by four weeks of immobilization, and developed a stiff hand. Physical examination showed mild inflammatory signs, pain and a major limitation in the extension and supination of the wrist, and in the mobility of the II, III, IV and V metacarpophalangeal (-5 degrees and 32 degrees of average passive extension and flexion, respectively) and interphalangeal (-35 degrees and 73 degrees of average passive extension and flexion, respectively) joints. There was a lack of slip of the flexor tendons. The diagnosis of complex regional pain syndrome was considered although it could not be definitely established. After five months of adverse evolution the patient was referred to our center where a combined intervention with paraffin, manual therapy, prolonged active and passive stretch on a pegboard, and splinting was applied. After initiation of this therapy, a marked change in the evolution of the pain, the mobility and functionality of the hand was observed. At the end of the rehabilitation program the patient was able to fully resume her job. Conclusion: The present case illustrates the need of intensive treatment for post traumatic hand stiffness, and describes, as an original contribution, a combined intervention therapy including paraffin, manual therapy, pegboard and splinting. PMID- 29340196 TI - A therapist-focused knowledge translation intervention for improving patient adherence in musculoskeletal physiotherapy practice. AB - Background: Nonadherence to treatment remains high among patients with musculoskeletal conditions with negative impact on the treatment outcomes, use of personal and cost of care. An active knowledge translation (KT) strategy may be an effective strategy to support practice change. The purpose of this study was to deliver a brief, interactive, multifaceted and targeted KT program to improve physiotherapist knowledge and confidence in performing adherence enhancing activities related to risk, barriers, assessment and interventions. Methods: We utilised a 2-phase approach in this KT project. Phase 1 involved the development of an adherence tool kit following a synthesis of the literature and an iterative process involving 47 end-users. Clinicians treating patients with musculoskeletal conditions were recruited from two Physiotherapy and Occupational therapy national conferences in Canada. The intervention, based on the acronym SIMPLE TIPS was tested on 51 physiotherapists in phase 2. A pre- and post-repeated measures design was used in Phase 2. Graham's knowledge-to-action cycle was used as the conceptual framework. Participants completed a pre-intervention assessment, took part in a 1-h educational session and completed a post intervention assessment. A questionnaire was used to measure knowledge of evidence-based treatment adherence barriers, interventions and measures and confidence to perform evidence-based adherence practice activities. Data was analysed using descriptive statistics (frequency and percentage), Fisher's exact test and Wilcoxon Sign-Ranked tests. Results: Barriers and facilitators of adherence were identified under three domains (therapist, patient, health system) in phase 1. Seventy percent of the participants completed the questionnaire. Results indicated that 46.8% of respondents explored barriers including the use of behaviour change strategies and 45.7% reported that they measured adherence but none reported the use of validated outcomes. A significant improvement in post-self-efficacy scores for the four adherence enhancing activities was observed immediately after the workshop. Conclusion: The use of a multi-modal KT intervention is feasible in an educational setting. A brief interactive educational session was successfully implemented using a toolkit and caused a significant increase in physiotherapists' knowledge and confidence at performing adherence enhancing activities in the very short-term. Further testing of SIMPLE TIPS on long-term adherence practices could help advance best practices specific to treatment adherence in MSK practice. PMID- 29340197 TI - Hemodynamics and tissue oxygenation effects after increased in positive end expiratory pressure in coronary artery bypass surgery. AB - Background: Cardiac surgery is widely used in the treatment of cardiovascular diseases. However, several complications can be observed during the postoperative period. Positive end expiratory pressure (PEEP) improves gas exchange, but it might be related to decreased cardiac output and possible impairment of tissue oxygenation. The aim of this study was to investigate the hemodynamic effects and oxygen saturation of central venous blood (ScvO2) after increasing PEEP in hypoxemic patients after coronary artery bypass (CAB) surgery. Methods: Seventy post-cardiac surgery patients (CAB), 61 +/- 7 years, without ventricular dysfunction (left ventricular ejection fraction 57 +/- 2%), with hypoxemia (PaO2/FiO2 ratio <200) were enrolled. Heart rate, mean arterial pressure, arterial and venous blood samples were measured at intensive care unit and PEEP was increased to 12 cmH2O for 30 min. Results: As expected, PEEP12 improved arterial oxygenation and PaO2/FiO2 ratio (p < 0.0001). Reduction in ScvO2 was observed between PEEP5 (63 +/- 2%) and PEEP12 (57 +/- 1%; p = 0.01) with higher values of blood lactate in PEEP12 (p < 0.01). No hemodynamic effects (heart rate, mean arterial pressure, SpO2; p > 0.05) were related. Conclusion: Increased PEEP after cardiac surgery decreased ScvO2 and increased blood lactate, even with higher O2 delivery. PEEP did not interfere in hemodynamics status in CAB patients, suggesting that peripheral parameters must be controlled and measured during procedures involving increased PEEP in post-cardiac surgery patients in the intensive care unit. PMID- 29340198 TI - Content validity and test-retest reliability of a low back pain questionnaire in Zimbabwean adolescents. AB - Background: In Zimbabwe, a recent increase in the volume of research on recurrent non-specific low back pain (NSLBP) has revealed that adolescents are commonly affected. This is alarming to health professionals and parents and calls for serious primary preventative strategies to be developed and implemented forthwith. Early identification initiatives should be prioritised in order to curtail the condition and its progression. In an attempt to be proactive in minimising the prevalence of recurrent NSLBP, this study was conducted to evaluate the content validity and test-retest reliability of a survey questionnaire with the aim of proffering a valid and reliable questionnaire which can be used in non-clinical settings to identify adolescents with recurrent NSLBP in Harare, Zimbabwe and determine the possible factors associated with the condition. Methods: The study was conducted in two parts. The first part assessed content validity of the questionnaire using four experts derived from academia and clinical practice. The second part evaluated the reliability of the questionnaire among 125 high school-children aged between 13 and 19 years in a test-retest study. Results: Twenty-six (26) out of thirty questions in the questionnaire had an Item Content Validity index of 1.00, demonstrating complete agreement among content experts. Overall, the Scale Content Validity Index for the questionnaire was 0.97. Item completion for the reliability study was satisfactory. The questionnaire items had kappa values ranging from 0.17 (slight agreement) to 1 (perfect agreement). High levels of reliability were found for the questions on school bag use (k=0.94), sports participation (k=0.97), and lifetime prevalence (k=0.89). Conclusion: Excellent content validity and slight to perfect test-retest reliability was found for the Low Back Pain (LBP) questionnaire. These results are comparable to findings of other studies evaluating the psychometric properties of LBP questionnaires. Cognisant of the limitations of the study, the results of this study suggest that the LBP questionnaire could be used in local studies investigating LBP among adolescents although questions enquiring on functional limitations and sciatica may need further consideration. PMID- 29340199 TI - Depicting individual responses to physical therapist led chronic pain self management support with pain science education and exercise in primary health care: multiple case studies. AB - Background: Previous evidence suggests self-management programs for people with chronic pain improve knowledge and self-efficacy, but result in small to negligible changes in function. The purpose of this multiple case studies design was to describe the unique responses of six participants to a new self-management program aimed at improving function, to detail each component of the program, and to explore potential explanations for the varied trajectories of each of the participants. Case Presentation: Six participants who had been experiencing chronic pain for at least 5 years were included. All participants were enrolled 6 weeks of ChrOnic pain self-ManageMent support with pain science EducatioN and exercise (COMMENCE). Participants completed an assessment at baseline, 7 weeks (1 week follow-up), and 18 weeks (12-week follow-up). Each participant had a unique initial presentation and goals. Assessments included: function as measured by the Short Musculoskeletal Function Assessment - Dysfunction Index, how much participants are bothered by functional difficulties, pain intensity, fatigue, pain interference, cognitive and psychological factors associated with pain and disability, pain neurophysiology, self-efficacy, satisfaction, and perceived change. The self-management program was 6-weeks in length, consisting of one individual visit and one group visit per week. The program incorporated three novel elements not commonly included in self-management programs: pain neurophysiology education, individualized exercises determined by the participants' goals, and additional cognitive behavioural approaches. Participants were all satisfied with self-management support received. Change in function was variable ranging from 59% improvement to 17% decline. Two potential explanations for variances in response, attendance and social context, are discussed. Several challenges were identified by participants as barriers to attendance. Conclusions: A primary care self-management intervention including pain education and individualized exercise has potential to improve function for some people with chronic pain, although strategies to improve adherence and reduce barriers to participation may be needed to optimize the impact. PMID- 29340200 TI - A survey of physicians and physiotherapists on physical activity promotion in Nigeria. AB - Background: Effective control of non-communicable diseases and promotion of population-wide physical activity participation require the active engagement of health professionals. Physiotherapists and physicians, as part of their practice, routinely screen and assess physical activity status, and recommend health enhancing physical activity participation for their patients. This study aims to compare Nigerian physiotherapists and physicians' knowledge of physical activity message, role perception and confidence, perceived feasibility and barriers, and overall disposition to promoting physical activity in their practice. Methods: A total of 153 physicians and 94 physiotherapists recruited from 10 government hospitals in five states in Northern Nigeria completed a standardized physical activity promotion questionnaire that elicited information on the knowledge of physical activity, role perception and confidence, feasibility, and barriers to physical activity promotion. Descriptive and inferential statistics were used to analyze the data. Results: The physiotherapists and physicians were fairly knowledgeable on physical activity message (14.2 +/- 2.1/20), reported minimal or little barrier to physical activity promotion (23.7 +/- 3.1/30), perceived physical activity promotion as their role (13.0 +/- 1.8/15), were confident in their ability to discuss and recommend physical activity promotion (7.6 +/- 1.6/10) and believed promoting physical activity was feasible for them (15.6 +/- 2.6/20). However, over 40% of the physiotherapists and physicians do not know the correct dosage of physical activity that could confer health benefits to patients. The physicians showed better overall disposition to physical activity promotion than the physiotherapists (P = 0.048), but more physiotherapists than the physicians believed 'it is part of their role to suggest to patients to increase their daily physical activity' (95.7% vs 88.2%, P = 0.043) and were more 'confident in suggesting specific physical activity programs for their patients' (87.2% vs 64.5%, P < 0.001). Conclusion: Physiotherapists and physicians in Nigeria demonstrated good disposition to promoting physical activity but many of them have knowledge deficits on the correct dosage required for better health for their patients. These health professionals can serve as good advocates for physical activity promotion in Nigeria, but many of them may require knowledge update on health enhancing physical activity for effective health promotion and primary prevention of non-communicable diseases. PMID- 29340201 TI - Developing the content of a locomotor disability scale for adults in Bangladesh: a qualitative study. AB - Background: Bangladesh has an estimated 17 million adults with disabilities. A significant proportion of them are believed to have locomotor disabilities. There are over 300 non-governmental organizations providing different types of rehabilitation services to them. However, there is no locally developed and validated locomotor disability measurement scale in Bangladesh. The purpose of this study was to develop a locomotor disability scale with disability indicators suitable for adults in Bangladesh. Methods: Semi-structured interviews were conducted with 25 purposively selected adults with locomotor disabilities to generate scale items. At the second stage, cognitive interviews were conducted with 12 purposively selected adults with locomotor disabilities in order to refine the measurement questions and response categories. Data were analysed using the framework technique- identifying, abstracting, charting and matching themes across the interviews. Results: For a locomotor disability scale, 70 activities (disability indicators) were identified: 37 mobility activities, 9 activities of daily living, 17 work/productivity activities and 7 leisure activities. Cognitive interviews revealed that when asking the respondents to rate their difficulty in performing the activities, instead of just mentioning the activity name, such as taking a bath or shower, a detailed description of the activity and response options were necessary to ensure consistent interpretation of the disability indicators and response options across all respondents. Conclusions: Identifying suitable disability indicators was the first step in developing a locomotor disability scale for adults in Bangladesh. Interviewing adults with locomotor disabilities in Bangladesh ensured that the locomotor disability scale is of relevance to them and consequently it has excellent content validity. Further research is needed to evaluate the psychometric properties of this scale. PMID- 29340202 TI - Exploring barriers to accessing physiotherapy services for stroke patients at Tema general hospital, Ghana. AB - Background: Physiotherapy has been shown to reduce the risk of disability among stroke patients. Poor adherence to physiotherapy can negatively affect outcomes and healthcare cost. However, very little is known about barriers especially to physiotherapy services in Ghana. The objective of this study was to assess the barriers to physiotherapy services for stroke patients at Tema General Hospital (TGH). The individual/personal and health system barriers to physiotherapy services at TGH were determined. Method: A cross-sectional study design was employed. A simple random sampling technique was used to recruit 207 respondents for a face-to-face interview. Interviewer-administered questionnaires were used to collect data on individual/personal barriers of respondents to physiotherapy services and were described using the Likert's scale. Health system barriers were assessed using a self-structured questionnaire which had section under the following heading: human factors, physiotherapy modalities, physical barriers and material/equipment factors. The time spent waiting for physiotherapy and attitude of physiotherapist towards patients; physiotherapy modality such as electrotherapy, exercise therapy and massage therapy among others were some of the indices measured. Respondents' adherence to Medication was assessed with the Morisky 8-item medication adherence questionnaire. Data were entered and analysed using Epi info 7 and STATA 12.0. Associations between the variables were determined using a chi-square test and logistic regression model was used to test the strength of associations between the independent and the dependent variables. The level of statistical significance was set at p < 0.05. Results: The results showed that majority (76.3%) of the respondents had economic barrier as their main individual/personal barrier to physiotherapy services. For medication adherence level, patients with low medication adherence level were about 21 times the odds of defaulting on accessing physiotherapy services five times or more as compared to those with medium adherence level (OR 20.63, 95% CI 8.96, 42.97). It was concluded in the study that individual/personal barriers of stroke patients were the significant barriers to accessing physiotherapy services at Tema General Hospital. PMID- 29340203 TI - Effectiveness of three modes of kinetic-chain exercises on quadriceps muscle strength and thigh girth among individuals with knee osteoarthritis. AB - Background: The study was designed to evaluate and compare the effectiveness of 12-week open, closed and combined kinetic-chain exercises (OKCE, CKCE and CCE) on quadriceps muscle strength and thigh girth of patients with knee osteoarthritis (OA). Method: The randomized clinical trial involved ninety-six consecutive patients with knee OA who were randomly assigned to one of OKCE, CKCE or CCE groups. Participants' static quadriceps muscle strength (SQS), dynamic quadriceps muscle strength (DQS) and thigh girth (TG) were assessed using cable tensiometer, one repetition method and inelastic tape measure respectively at baseline and at the end of weeks 4, 8 and 12 of study. Results: The three groups were comparable regarding their demographic and dependent variables at baseline; there was significant time effect (p < 0.001each) as all three measures significantly increased over time from baseline to week 12 [mean difference: SQS: 3.30 (95% CI: 2.52-4.08) N; DQS: 0.74 (95% CI: 0.45-1.02) N; TG: 1.32 (95% CI: 0.93-1.71) cm]. The effect of intervention-time interaction was not significant (p > 0.05) for all three measures. Changes in SQS, DQS and TG between baseline and week 12 were also not significantly different (p > 0.05) among the three groups. Conclusion: All three exercise regimens are effective and demonstrate similar effects on quadriceps muscle strength and muscular trophism. Trial registration: NHREC/05/01/2008a. Registered 20th March, 2014 Retrospectively. PMID- 29340204 TI - Side alternating vibration training in patients with mitochondrial disease: a pilot study. AB - Background: Side alternating vibration training (SAVT) is a mechanical oscillation using a vibrating platform that simulates exercise. We hypothesized that patients with mitochondrial myopathies, who experience muscle weakness, may see an improvement in muscle power with SAVT. Methods: Patients with mitochondrial disease started either a treatment (SAVT) or control phase (standing without vibration) for 12 weeks, then 12 weeks of washout, and then a 12-week cross-over. The main outcome measure was peak jump power (PJP). We compared this to a natural history cohort from clinic. Results: Seven out of 13 patients completed at least 80% of their SAVT sessions and were analyzed. The DeltaPJP after the control phase was -2.7 +/- 1.7 W/kg (mean +/- SEM), SAVT was +2.8 +/- 0.6 W/kg (p < 0.05) and from the natural history cohort was -2.4 +/- 0.8 W/kg/year. Conclusions: SAVT is well tolerated and may improve muscle power in mitochondrial disease patients. PMID- 29340205 TI - Physiotherapy in upper abdominal surgery - what is current practice in Australia? AB - Background: Upper abdominal surgery (UAS) has the potential to cause post operative pulmonary complications (PPCs). In the absence of high-quality research regarding post-operative physiotherapy management, consensus-based best practice guidelines formulated by Hanekom et al. (2012) are available to clinicians providing recommendations for post-UAS treatment. Such best practice guidelines have recommended that physiotherapists should be using early mobilisation and respiratory intervention to minimise risk of PPCs. However, recent evidence supports the implementation of mobilisation as a standalone treatment in PPC prevention, though the diversity in literature poses questions regarding ideal current practice. This project aimed to document and report the assessment measures and interventions physiotherapists are utilising following UAS, establishing whether current management is reflective of best practice guidelines and recent evidence. Results: An online survey was completed by 57 experienced Australian physiotherapists working with patients following UAS (35% survey response rate, 63% completion rate). On day one following UAS, when a patient's condition is not medically limited, most physiotherapists routinely mobilise. Additionally, routine chest treatment continues to be implemented, with only 23% (n = 11/47) of physiotherapists mobilising patients without accompanying specific respiratory intervention. Variability of screening tools used to identify post operative patients at high risk of PPC development was evident. Patient-dependent factors such as 'fatigue' and 'non-compliance' were among those identified as barriers to treatment, all influencing the commencement of treatment. Conclusions: Physiotherapists indicated that early mobilisation away from the bedside was the preferred post-operative treatment within the UAS patient population. Many continue to perform routine respiratory interventions despite recent literature suggesting it may provide no additional benefit to preventing PPCs. Current intervention choice is reflective of guidelines [1], however, recent literature has called this into question and more research needs to be done to establish if these recommendations are the most effective at reducing PPCs. Continued research is necessary to promote translation of knowledge to ensure physiotherapists are mobilising patients day one post-UAS. Likewise, future work should focus on identification of barriers, the strategies used to overcome limitations and the creation of a reliable and validated screening tool to ensure appropriate prioritisation and allocation of physiotherapy resources within the UAS patient population. PMID- 29340206 TI - How to diagnose cervicogenic dizziness. AB - Cervicogenic dizziness (CGD) is a clinical syndrome characterized by the presence of dizziness and associated neck pain. There are no definitive clinical or laboratory tests for CGD and therefore CGD is a diagnosis of exclusion. It can be difficult for healthcare professionals to differentiate CGD from other vestibular, medical and vascular disorders that cause dizziness, requiring a high level of skill and a thorough understanding of the proper tests and measures to accurately rule in or rule out competing diagnoses. Consequently, the purpose of this paper is to provide a systematic diagnostic approach to enable healthcare providers to accurately diagnose CGD. This narrative will outline a stepwise process for evaluating patients who may have CGD and provide steps to exclude diagnoses that can present with symptoms similar to those seen in CGD, including central and peripheral vestibular disorders, vestibular migraine, labyrinthine concussion, cervical arterial dysfunction, and whiplash associated disorder. PMID- 29340207 TI - Participation in physical activities for children with cerebral palsy: feasibility and effectiveness of physical activity on prescription. AB - Background: Children with cerebral palsy (CP) are less physically active and more sedentary than other children which implies risk factors for their physical and mental health. Physical activity on prescription (PAP) is an effective intervention to promote a lifestyle change towards increased physical activity in adults in general. Knowledge is lacking about the use of PAP in children with CP. Therefore, the aim of this study was to evaluate the feasibility of PAP for children with CP and its effectiveness on participation in physical activity and sedentary behaviour. Methods: Eleven children with CP, aged 7-11 years, participated in PAP, consisting of a written agreement between each child, their parents and the physiotherapist and based on Motivational Interviewing (MI), Canadian Occupational Performance Measure (COPM) and Goal Attainment Scaling (GAS). Individual goals, gross motor function and physical activity were assessed at baseline, at 8 and/or 11 months using COPM, GAS, logbooks, Gross Motor Function Measure (GMFM-66), physical activity questionnaires, physical activity and heart rate monitors and time-use diaries. At 8 and 11 months the feasibility of the intervention and costs and time spent for the families and the physiotherapist were evaluated by questionnaires. Results: The intervention was feasible according to the feasibility questionnaire. Each child participated in 1 3 self-selected physical activities during 3-6 months with support from the physiotherapist, and clinically meaningful increases from baseline of COPM and GAS scores were recorded. Being physically active at moderate-vigorous levels varied between less than 30 and more than 240 minutes/day, and the median for the whole group was 84 minutes/day at baseline and 106 minutes/day at 8 months. Conclusions: The intervention PAP seems to be feasible and effective for children with CP, involving both every day and organised physical activities to promote an active lifestyle through increased participation, motivation, and engagement in physical activities. Further research of PAP is needed, preferably in a long term randomised controlled trial and including health economic analysis to show costs and benefits. Trial Registration: ISRCTN76366356, retrospectively registered. PMID- 29340208 TI - Are they publishing? A descriptive cross-sectional profile and bibliometric analysis of the journal publication productivity of Italian physiotherapists. AB - Background: In a clinical science-based profession such as physiotherapy, research is mandatory to update knowledge and to provide cost-effective, high quality treatments. This study aimed to provide point prevalence of Italian physiotherapists who are academics, holding a PhD degree, or being authors of scientific papers. The scientific journal productivity of physiotherapists was also thoroughly analyzed. Methods: A descriptive cross-sectional study was carried out on all Italian physiotherapists. Academics, postdoctoral research fellows, and PhD graduates were identified by searching the Italian Ministry of Education, University and Research (MIUR), Italian Society of Physiotherapy, and university websites. Then, authors of articles indexed in Scopus were searched. The following data were extracted: type of affiliation, authorship order, H index, number of publications and citations, name of journals, year of publication, and journal's Impact Factor. Results: The prevalence of academics, physiotherapists holding a PhD, or being author was 0.01%, 0.05%, and 0.56%, respectively. We identified 1083 papers co-authored by Italian physiotherapists, and their number has progressively increased over the years (p < 0.001). There was a significant difference between researchers and clinicians in both publication productivity (p < 0.01), citations (p < 0.01), and H-Index (p = 0.05). Articles were published in 359 different journals, receiving a total of 13,373 citations. Conclusions: Despite the low prevalence of faculty members and the reduced availability of PhD programs in Italy (forcing some students to study abroad), the quantity and quality of journal productivity is growing fast, and an increasing number of physiotherapists are involved in research activities. PMID- 29340210 TI - TreeTime: Maximum-likelihood phylodynamic analysis. AB - Mutations that accumulate in the genome of cells or viruses can be used to infer their evolutionary history. In the case of rapidly evolving organisms, genomes can reveal their detailed spatiotemporal spread. Such phylodynamic analyses are particularly useful to understand the epidemiology of rapidly evolving viral pathogens. As the number of genome sequences available for different pathogens has increased dramatically over the last years, phylodynamic analysis with traditional methods becomes challenging as these methods scale poorly with growing datasets. Here, we present TreeTime, a Python-based framework for phylodynamic analysis using an approximate Maximum Likelihood approach. TreeTime can estimate ancestral states, infer evolution models, reroot trees to maximize temporal signals, estimate molecular clock phylogenies and population size histories. The runtime of TreeTime scales linearly with dataset size. PMID- 29340211 TI - Differences in adaptive dynamics determine the success of virus variants that propagate together. AB - Virus fitness is a complex parameter that results from the interaction of virus specific characters (e.g. intracellular growth rate, adsorption rate, virion extracellular stability, and tolerance to mutations) with others that depend on the underlying fitness landscape and the internal structure of the whole population. Individual mutants usually have lower fitness values than the complex population from which they come from. When they are propagated and allowed to attain large population sizes for a sufficiently long time, they approach mutation-selection equilibrium with the concomitant fitness gains. The optimization process follows dynamics that vary among viruses, likely due to differences in any of the parameters that determine fitness values. As a consequence, when different mutants spread together, the number of generations experienced by each of them prior to co-propagation may determine its particular fate. In this work we attempt a clarification of the effect of different levels of population diversity in the outcome of competition dynamics. To this end, we analyze the behavior of two mutants of the RNA bacteriophage Qbeta that co propagate with the wild-type virus. When both competitor viruses are clonal, the mutants rapidly outcompete the wild type. However, the outcome in competitions performed with partially optimized virus populations depends on the distance of the competitors to their clonal origin. We also implement a theoretical population dynamics model that describes the evolution of a heterogeneous population of individuals, each characterized by a fitness value, subjected to subsequent cycles of replication and mutation. The experimental results are explained in the framework of our theoretical model under two non-excluding, likely complementary assumptions: (1) The relative advantage of both competitors changes as populations approach mutation-selection equilibrium, as a consequence of differences in their growth rates and (2) one of the competitors is more robust to mutations than the other. The main conclusion is that the nearness of an RNA virus population to mutation-selection equilibrium is a key factor determining the fate of particular mutants arising during replication. PMID- 29340209 TI - Discovery of Culex pipiens associated tunisia virus: a new ssRNA(+) virus representing a new insect associated virus family. AB - In the global context of arboviral emergence, deep sequencing unlocks the discovery of new mosquito-borne viruses. Mosquitoes of the species Culex pipiens, C. torrentium, and C. hortensis were sampled from 22 locations worldwide for transcriptomic analyses. A virus discovery pipeline was used to analyze the dataset of 0.7 billion reads comprising 22 individual transcriptomes. Two closely related 6.8 kb viral genomes were identified in C. pipiens and named as Culex pipiens associated tunisia virus (CpATV) strains Ayed and Jedaida. The CpATV genome contained four ORFs. ORF1 possessed helicase and RNA-dependent RNA polymerase (RdRp) domains related to new viral sequences recently found mainly in dipterans. ORF2 and 4 contained a capsid protein domain showing strong homology with Virgaviridae plant viruses. ORF3 displayed similarities with eukaryotic Rhoptry domain and a merozoite surface protein (MSP7) domain only found in mosquito-transmitted Plasmodium, suggesting possible interactions between CpATV and vertebrate cells. Estimation of a strong purifying selection exerted on each ORFs and the presence of a polymorphism maintained in the coding region of ORF3 suggested that both CpATV sequences are genuine functional viruses. CpATV is part of an entirely new and highly diversified group of viruses recently found in insects, and that bears the genomic hallmarks of a new viral family. PMID- 29340212 TI - 40 Years without Smallpox. AB - The last case of natural smallpox was recorded in October, 1977. It took humanity almost 20 years to achieve that feat after the World Health Organization had approved the global smallpox eradication program. Vaccination against smallpox was abolished, and, during the past 40 years, the human population has managed to lose immunity not only to smallpox, but to other zoonotic orthopoxvirus infections as well. As a result, multiple outbreaks of orthopoxvirus infections in humans in several continents have been reported over the past decades. The threat of smallpox reemergence as a result of evolutionary transformations of these zoonotic orthopoxviruses exists. Modern techniques for the diagnostics, prevention, and therapy of smallpox and other orthopoxvirus infections are being developed today. PMID- 29340213 TI - Non-Coding RNAs As Transcriptional Regulators In Eukaryotes. AB - Non-coding RNAs up to 1,000 nucleotides in length are widespread in eukaryotes and fulfil various regulatory functions, in particular during chromatin remodeling and cell proliferation. These RNAs are not translated into proteins: thus, they are non-coding RNAs (ncRNAs). The present review describes the eukaryotic ncRNAs involved in transcription regulation, first and foremost, targeting RNA polymerase II (RNAP II) and/or its major proteinaceous transcription factors. The current state of knowledge concerning the regulatory functions of SRA and TAR RNA, 7SK and U1 snRNA, GAS5 and DHFR RNA is summarized herein. Special attention is given to murine B1 and B2 RNAs and human Alu RNA, due to their ability to bind the active site of RNAP II. Discovery of bacterial analogs of the eukaryotic small ncRNAs involved in transcription regulation, such as 6S RNAs, suggests that they possess a common evolutionary origin. PMID- 29340214 TI - The Contribution of Ribosomal Protein S1 to the Structure and Function of Qbeta Replicase. AB - The high resolution crystal structure of bacterial ribosome was determined more than 10 years ago; however, it contains no information on the structure of the largest ribosomal protein, S1. This unusual protein comprises six flexibly linked domains; therefore, it lacks a fixed structure and this prevents the formation of crystals. Besides being a component of the ribosome, protein S1 also serves as one of the four subunits of Qbeta replicase, the RNA-directed RNA polymerase of bacteriophage Qbeta. In each case, the role of this RNA-binding protein has been thought to consist in holding the template close to the active site of the enzyme. In recent years, a breakthrough was made in studies of protein S1 within Qbeta replicase. This includes the discovery of its paradoxical ability to displace RNA from the replicase complex and determining the crystal structure of its fragment capable of performing this function. The new findings call for a re examination of the contribution of protein S1 to the structure and function of the ribosome. PMID- 29340215 TI - Genome Stability Maintenance in Naked Mole-Rat. AB - The naked mole-rat (Heterocephalus glaber) is one of the most promising models used to study genome maintenance systems, including the effective repair of damage to DNA. The naked mole-rat is the longest lived rodent species, which is extraordinarily resistant to cancer and has a number of other unique phenotypic traits. For at least 80% of its lifespan, this animal shows no signs of aging or any increased likelihood of death and retains the ability to reproduce. The naked mole-rat draws the heightened attention of researchers who study the molecular basis of lengthy lifespan and cancer resistance. Despite the fact that the naked mole-rat lives under genotoxic stress conditions (oxidative, etc.), the main characteristics of its genome and proteome are a high stability and effective functioning. Replicative senescence in the somatic cells of naked mole-rats is missing, while an additional p53/pRb-dependent mechanism of early contact inhibition has been revealed in its fibroblasts, which controls cell proliferation and its mechanism of arf-dependent aging. The unique traits of phenotypic and molecular adaptations found in the naked mole-rat speak to a high stability and effective functioning of the molecular machinery that counteract damage accumulation in its genome. This review analyzes existing results in the study of the molecular basis of longevity and high cancer resistance in naked mole-rats. PMID- 29340217 TI - Translational Cross-Activation of the Encapsidated RNA of Potexviruses. AB - We had shown the genomic RNA of potexviruses potato virus X and the alternanthera mosaic virus to be inaccessible in vitro to ribosomes while in intact virion form, but the RNAs can be translationally activated following the binding of movement protein 1 (MP1) to virus particles. Here, we present the results of the follow-up study targeting two more potexvirus species - the Narcissus mosaic virus and the Potato aucuba mosaic virus. We found encapsidated potexviral RNA to share common translational features in vitro and the MP1 to be potent over homological virions of its "own" species and over heterological virions of other species, as well exhibiting selective specificity. Reciprocal cross-activation is observed among viral species phylogenetically either close or distant. There is direct evidence that MP1 binding to the end of the virion is necessary, but not sufficient, for translational activation of encapsidated RNA. PMID- 29340218 TI - Synthesis and Characterization of Hybrid Core-Shell Fe3O4/SiO2 Nanoparticles for Biomedical Applications. AB - The creation of markers that provide both visual and quantitative information is of considerable importance for the mapping of tissue macrophages and other cells. We synthesized magnetic and magneto-fluorescent nanomarkers for the labeling of cells which can be detected with high sensitivity by the magnetic particle quantification (MPQ) technique. For stabilization under physiological conditions, the markers were coated with a dense silica shell. In this case, the size and zeta-potential of nanoparticles were controlled by a modified Stober reaction. Also, we developed a novel facile two-step synthesis of carboxylic acid functionalized magnetic SiO2 nanoparticles, with a carboxyl polymer shell forming on the nanoparticles before the initiation of the Stober reaction. We extensively characterized the nanomarkers by transmission electron microscopy, electron microdiffraction, and dynamic and electrophoretic light scattering. We also studied the nanoparticle cellular uptake by various eukaryotic cell lines. PMID- 29340216 TI - Super-Resolution Microscopy in Studying the Structure and Function of the Cell Nucleus. AB - In recent decades, novel microscopic methods commonly referred to as super- resolution microscopy have been developed. These methods enable the visualization of a cell with a resolution of up to 10 nm. The application of these methods is of great interest in studying the structure and function of the cell nucleus. The review describes the main achievements in this field. PMID- 29340219 TI - A Novel Hybrid Promoter ARE-hTERT for Cancer Gene Therapy. AB - describe a novel hybrid tumor-specific promoter, ARE-hTERT, composed of the human TERT gene promoter (hTERT) and the antioxidant response element (ARE) from the human GCLM gene promoter. The hybrid promoter retains the tumor specificity of the basal hTERT promoter but is characterized by an enhanced transcriptional activity in cancer cells with abnormal activation of the Nrf2 transcription factor and upon induction of oxidative stress. In the in vitro enzyme-prodrug cancer gene therapy scheme, ARE-hTERT promoter-driven expression of CD : UPRT (yeast cytosine deaminase : uracil phosphoribosyltransferase) chimeric protein induced a more pronounced death of cancer cells either upon treatment with 5 fluorouracil (5FC) alone or when 5FC was combined with chemotherapeutic drugs as compared to the hTERT promoter. The developed hybrid promoter can be considered a better alternative to the hTERT promoter in cancer gene therapy schemes. PMID- 29340220 TI - Multilocus Analysis of Genetic Susceptibility to Myocardial Infarction in Russians: Replication Study. AB - In search of genetic markers of myocardial infarction (MI) risk, which have prognostic significance for Russians, we performed a replication study of MI association with genetic variants of PCSK9 (rs562556), APOE (epsilon polymorphism, rs7412 and rs429358), LPL (rs320), MTHFR (rs1801133), eNOS (rs2070744), and the 9p21 region (rs1333049) in 405 patients with MI and 198 controls. Significant MI association was observed with variants of the lipid metabolism genes (PCSK9, APOE and LPL), and of eNOS. The SNPs in the MTHFR gene and the 9p21 region were not significantly associated with MI one by one but were included in several different MI-associated allelic combinations identified by multilocus analysis. Since we have not revealed nonlinear epistatic interactions between the components of the identified combinations, we postulate that the cumulative effect of genes that form a combination arises from the summation of their small independent contributions. The prognostic significance of the additive composite model built from the PCSK9, APOE, LPL, and eNOS genes as genetic markers was assessed using ROC analysis. After we included these markers in the previously published composite model of individual genetic risk of MI, the prognostic efficacy in our sample reached AUC = 0.676. However, the results obtained in this study certainly need to be replicated in an independent sample of Russians. PMID- 29340221 TI - Recombinant Antibodies to the Ebola Virus Glycoprotein. AB - Currently, there are no approved therapies for targeted prevention and treatment of Ebola hemorrhagic fever. In the present work, we describe the development of a eukaryotic expression system for the production of three full-length chimeric antibodies (IgG1-kappa isotypes) GPE118, GPE325, and GPE534 to the recombinant glycoprotein of the Ebola virus (EBOV GP), which is a key factor in the pathogenicity of the disease. The immunochemical properties of the obtained antibodies were studied by immunoblotting and indirect, direct, and competitive ELISA using the recombinant EBOV proteins rGPdTM, NP, and VP40. The authenticity of the antibodies and the absence of cross-specificity with respect to the structural proteins NP and VP40 of the Ebola virus were proved. The epitope specificity of the resulting recombinant antibodies was studied using commercial neutralizing antibodies against the viral glycoprotein. The recombinant antibodies GPE118, GPE325, and GPE534 were shown to recognize glycoprotein epitopes that coincide or overlap with the epitopes of three well-studied neutralizing anti-Ebola virus antibodies. PMID- 29340222 TI - Direct Molecular Fishing of New Protein Partners for Human Thromboxane Synthase. AB - Thromboxane synthase (TBXAS1) catalyzes the isomerization reaction of prostaglandin H2 producing thromboxane A2, the autocrine and paracrine factor in many cell types. A high activity and metastability by these arachidonic acid derivatives suggests the existence of supramolecular structures that are involved in the regulation of the biosynthesis and directed translocation of thromboxane to the receptor. The objective of this study was to identify TBXAS1 protein partners from human liver tissue lysate using a complex approach based on the direct molecular fishing technique, LC-MS/MS protein identification, and protein protein interaction validation by surface plasmon resonance (SPR). As a result, 12 potential TBXAS1 protein partners were identified, including the components regulating cytoskeleton organization (BBIP1 and ANKMY1), components of the coagulation cascade of human blood (SERPINA1, SERPINA3, APOH, FGA, and FN1), and the enzyme involved in the metabolism of xenobiotics and endogenous bioregulators (CYP2E1). SPR validation on the Biacore 3000 biosensor confirmed the effectiveness of the interaction between CYP2E1 (the enzyme that converts prostaglandin H2 to 12-HHT/thromboxane A2 proantagonist) and TBXAS1 (Kd = (4.3 +/ 0.4) * 10-7 M). Importantly, the TBXAS1*CYP2E1 complex formation increases fivefold in the presence of isatin (indole-2,3-dione, a low-molecular nonpeptide endogenous bioregulator, a product of CYP2E1). These results suggest that the interaction between these hemoproteins is important in the regulation of the biosynthesis of eicosanoids. PMID- 29340223 TI - YABBY3-Orthologous Genes in Wild Tomato Species: Structure, Variability, and Expression. AB - Evolution of the genes encoding YABBY transcription factors is believed to be one of the key reasons for flat leaf emergence from the radially symmetrical stem and gynoecium diversity. YABBY genes determine the identity of the abaxial surface of all aboveground lateral organs in seed plants. In the present study, complete sequences of YABBY3-orthologous genes were identified and characterized in 13 accessions of cultivated and wild tomato species with diverse morphophysiology of leaves, flowers, and fruits. The obtained gene sequences showed high homology (95 99%) and an identical exon-intron structure with the known S. lycopersicum YABBY3 gene, and they contained sequences that encode the conserved HMG-like YABBY and Cys2Cys2-zinc-finger domains. In total, in the analyzed YABBY3 genes, 317 variable sites were found, wherein 8 of 24 exon-specific SNPs were nonsynonymous. In the vegetative and reproductive organs of red-fruited and green-fruited tomato species, YABBY3 gene expression was similar to that in S. pimpinellifolium described earlier, but it demonstrated interspecies differences at the leaf-, bud and flower-specific expression levels. PMID- 29340224 TI - CaMKII Is Involved in the Choline-Induced Downregulation of Acetylcholine Release in Mouse Motor Synapses. AB - We investigated the involvement of calcium-dependent enzymes, protein kinase C (PKC) and calcium-calmodulin-dependent protein kinase II (CaMKII), in the signaling pathway triggered by the activation of presynaptic alpha7-type nicotinic acetylcholine receptors by exogenous choline, leading to downregulation of the evoked acetylcholine (ACh) release in mouse motor synapses. Blockade of PKC with chelerythrine neither changed the evoked release of ACh by itself nor prevented the inhibitory effect of choline. The CaMKII blocker KN-62 did not affect synaptic activity but fully prevented the choline-induced downregulation of ACh release. PMID- 29340225 TI - Effects of Calcium on Drinking Fluorosis-induced Hippocampal Synaptic Plasticity Impairment in the Offspring of Rats. AB - Objective: This study investigated the effects of calcium on fluorosis-induced impairment in learning and memory of offspring rats. Methods Seventy-five newly weaned female Sprague-Dawley (SD) rats were randomly divided into five groups as follows: Control group (Control) drank tap water, and ate the normal diet (calcium content of 0.79%); fluoride group (F) drank 100 mg/L NaF solution, and ate the normal diet; low calcium group (LCa) drank tap water, and ate the low calcium diet (calcium content of 0.063%); low calcium fluoride group (F+LCa) drank 100 mg/L NaF solution, and ate the low calcium diet; high calcium fluoride group (F+HCa) drank 100 mg/L NaF solution, and ate the high calcium diet (calcium content of 7%). After exposing rats to fluoride for three months, male and female rats were mated and 14 and 28 days old offspring were obtained as experimental subjects. Examinations determined the submicroscopic parameters of the synaptic interface and expression levels of specific proteins: doublecortin (DCX) and synaptophysin (p38). Results: (1) High fluorosis significantly reduced synapse density, length of synaptic active zone, thickness of postsynaptic density, and led to abnormal changes in the structural parameter of synaptic gap width, which was significantly reduced or increased. High dietary calcium significantly reversed the abnormal changes in structural parameters, and low calcium aggravated these variations. (2) Dietary calcium resulted in nonsignificant effect on expression levels of DCX and p38. Conclusion: The results suggested that dietary calcium significantly affected hippocampal synaptic plasticity of offspring of mothers exposed to water fluorosis, but its molecular mechanism may not be related to the expression of DCX and p38 in the brain. The findings also demonstrate the important effects of maternal exposure to water fluorosis on offspring brain functions before water improvement. PMID- 29340226 TI - Depression is Associated with CRP SNPs in Patients with Family History. AB - Objective: The pathogenesis of depression is not fully understood, but studies have suggested that higher circulating levels of C reactive protein (CRP) might relate to depression occurrence. However, due to the highly variability of individual patients' conditions, the results to date are inconsistent. Considering Single nucleotide polymorphisms (SNPs) of CRP gene have also been suggested to predict plasma CRP levels. In the present study, we hypothesize that inherited CRP allelic variations may co-vary with depressive symptomatology. Methods: We recruited patients with a diagnosis of depression, with or without family depression history. We then detected serum CRP levels, as well as genome CRP SNPs from participants of this project. Results: We found a significantly higher circulating CRP levels in patients with a positive family history. Furthermore, we also identified certain inherited CRP SNPs (A allele in rs1417938 and C allele in rs1205) which could up-regulate serum CRP levels and thus be associated with depression occurrence. Conclusion: Our findings raise new evidence for the relationship between circulating CRP level and depression occurrence. PMID- 29340227 TI - Keyhole Surgery of Pineal Area Tumors - Personal Experience in 22 Patients. AB - Background: Pineal area tumors are challenging for surgery due to their location. However, the removal of the lesion is critical for further treatment and survival of the patients. Material and methods: 22 patients with pineal area tumors were surgically treated via keyhole medial suboccipital craniotomy and supracerebellar midline approach All the patients were operated in the sitting position with the use of operating microscope and microsurgical technique. Results: All patients survived surgery in a perfect condition, and no one patient worsened after surgery. No complications due to the sitting position were noted. Conclusions: Surgical removal of pineal area tumors via small suboccipital craniotomy is safe and with the use of microsurgical techniques the results of surgical treatment are excellent. The sitting position of the patients gives a better view to the surgeon. We did not observe any intraoperational complications due to the sitting position. PMID- 29340228 TI - A new small-bodied ornithopod (Dinosauria, Ornithischia) from a deep, high-energy Early Cretaceous river of the Australian-Antarctic rift system. AB - A new small-bodied ornithopod dinosaur, Diluvicursor pickeringi, gen. et sp. nov., is named from the lower Albian of the Eumeralla Formation in southeastern Australia and helps shed new light on the anatomy and diversity of Gondwanan ornithopods. Comprising an almost complete tail and partial lower right hindlimb, the holotype (NMV P221080) was deposited as a carcass or body-part in a log filled scour near the base of a deep, high-energy river that incised a faunally rich, substantially forested riverine floodplain within the Australian-Antarctic rift graben. The deposit is termed the 'Eric the Red West Sandstone.' The holotype, interpreted as an older juvenile ~1.2 m in total length, appears to have endured antemortem trauma to the pes. A referred, isolated posterior caudal vertebra (NMV P229456) from the holotype locality, suggests D. pickeringi grew to at least 2.3 m in length. D. pickeringi is characterised by 10 potential autapomorphies, among which dorsoventrally low neural arches and transversely broad caudal ribs on the anterior-most caudal vertebrae are a visually defining combination of features. These features suggest D. pickeringi had robust anterior caudal musculature and strong locomotor abilities. Another isolated anterior caudal vertebra (NMV P228342) from the same deposit, suggests that the fossil assemblage hosts at least two ornithopod taxa. D. pickeringi and two stratigraphically younger, indeterminate Eumeralla Formation ornithopods from Dinosaur Cove, NMV P185992/P185993 and NMV P186047, are closely related. However, the tail of D. pickeringi is far shorter than that of NMV P185992/P185993 and its pes more robust than that of NMV P186047. Preliminary cladistic analysis, utilising three existing datasets, failed to resolve D. pickeringi beyond a large polytomy of Ornithopoda. However, qualitative assessment of shared anatomical features suggest that the Eumeralla Formation ornithopods, South American Anabisetia saldiviai and Gasparinisaura cincosaltensis, Afro-Laurasian dryosaurids and possibly Antarctic Morrosaurus antarcticus share a close phylogenetic progenitor. Future phylogenetic analysis with improved data on Australian ornithopods will help to test these suggested affinities. PMID- 29340229 TI - Acquired melanocytic naevus phenotypes and MC1R genotypes in Han Chinese: a cross sectional study. AB - Background: Early detection and treatment are the most important elements in reducing the incidence of melanoma deaths. Acquired melanocytic naevi (AMN) are well-known precursors of melanoma but most of our knowledge on the clinico dermoscopic phenotypes of AMN is based on studies in European-background populations, particularly American and Australian populations. There has been little research in Chinese Han populations on clinico-dermoscopic variability of naevi or how naevi are affected by melanoma-linked variants of the melanocortin 1 receptor (MC1R) gene. Methods: Clinical and dermoscopic features of 448 AMN in 115 patients from the Han ethnic group in mainland China were described. Germline polymorphisms in MC1R were determined for 98 of these patients. Results: AMN were predominantly found on the head and neck. Dermoscopic patterns observed were nonspecific, reticular, globular, and parallel furrow, with most AMN having a nonspecific pattern. There were no associations between MC1R polymorphisms and clinical or dermoscopic features of AMN. Discussion: Our results provide evidence that AMN in the Han population in China have similar dermoscopic patterns to those in European populations, but are present in much lower numbers. As there were no associations between clinical or dermoscopic features of AMN and MC1R polymorphisms, further studies should focus on candidate gene associations with AMN features and the risk of melanoma, with larger sample sizes and comparisons to AMN in other populations. PMID- 29340230 TI - Arbutin increases Caenorhabditis elegans longevity and stress resistance. AB - Arbutin (p-hydroxyphenyl-beta-D-glucopyranoside), a well-known tyrosinase inhibitor, has been widely used as a cosmetic whitening agent. Although its natural role is to scavenge free radicals within cells, it has also exhibited useful activities for the treatment of diuresis, bacterial infections and cancer, as well as anti-inflammatory and anti-tussive activities. Because function of free radical scavenging is also related to antioxidant and the effects of arbutin on longevity and stress resistance in animals have not yet been confirmed, here the effects of arbutin on Caenorhabditis elegans were investigated. The results demonstrated that optimal concentrations of arbutin could extend lifespan and enhance resistance to oxidative stress. The underlying molecular mechanism for these effects involves decreased levels of reactive oxygen species (ROS), improvement of daf-16 nuclear localization, and up-regulated expression of daf-16 and its downstream targets, including sod-3 and hsp16.2. In this work the roles of arbutin in lifespan and health are studied and the results support that arbutin is an antioxidant for maintaining overall health. PMID- 29340232 TI - The effects of arbuscular mycorrhizal fungi and root interaction on the competition between Trifolium repens and Lolium perenne. AB - Understanding the factors that alter competitive interactions and coexistence between plants is a key issue in ecological research. A pot experiment was conducted to test the effects of root interaction and arbuscular mycorrhizal fungi (AMF) inoculation on the interspecies competition between Trifolium repens and Lolium perenne under different proportions of mixed sowing by the combination treatment of two levels of AMF inoculation (inoculation and non-inoculation) and two levels of root interaction (root interaction and non-root interaction). Overall, the aboveground and belowground biomass of T. repens and L. perenne were not altered by AMF inoculation across planting ratios, probably because the fertile soil reduced the positive effect of AMF on plant growth. Both inter- and intraspecies root interaction significantly decreased the aboveground biomass of T. repens, but tended to increase the aboveground biomass of L. perenne across planting ratios, and thus peaked at the 4:4 polyculture. These results showed that T. repens competed poorly with L. perenne because of inter and intraspecies root interaction. Our results indicate that interspecies root interaction regulates the competitive ability of grass L. perenne and legume T. repens in mixtures and further makes great contribution for overyielding. Furthermore, AMF may not be involved in plant-plant interaction in fertile condition. PMID- 29340231 TI - ksrMKL: a novel method for identification of kinase-substrate relationships using multiple kernel learning. AB - Phosphorylation exerts a crucial role in multiple biological cellular processes which is catalyzed by protein kinases and closely related to many diseases. Identification of kinase-substrate relationships is important for understanding phosphorylation and provides a fundamental basis for further disease-related research and drug design. In this study, we develop a novel computational method to identify kinase-substrate relationships based on multiple kernel learning. The comparative analysis is based on a 10-fold cross-validation process and the dataset collected from the Phospho.ELM database. The results show that ksrMKL is greatly improved in various measures when compared with the single kernel support vector machine. Furthermore, with an independent test dataset extracted from the PhosphoSitePlus database, we compare ksrMKL with two existing kinase-substrate relationship prediction tools, namely iGPS and PKIS. The experimental results show that ksrMKL has better prediction performance than these existing tools. PMID- 29340233 TI - Crustacean amphipods from marsh ponds: a nutritious feed resource with potential for application in Integrated Multi-Trophic Aquaculture. AB - Coastal protection, nutrient cycling, erosion control, water purification, and carbon sequestration are ecosystem services provided by salt marshes. Additionally, salt ponds offer coastal breeding and a nursery habitat for fishes and they provide abundant invertebrates, such as amphipods, which are potentially useful as a resource in aquaculture. Fishmeal and fish oil are necessary food resources to support aquaculture of carnivorous species due to their omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA). Currently, aquaculture depends on limited fisheries and feed with elevated n-3 LC-PUFA levels, but the development of more sustainable food sources is necessary. Amphipods appear to be a potential high quality alternative feed resource for aquaculture. Hence, a nutritional study was carried out for several main amphipod species-Microdeutopus gryllotalpa, Monocorophium acherusicum, Gammarus insensibilis, Melita palmata and Cymadusa filosa-in terrestrial ponds in the South of Spain. These species showed high protein content (up to 40%), high n-3 PUFA and phospholipid levels, and high levels of phophatidylcholine (PC), phosphatidylethanolamine (PE) and triacylglycerols (TAG), the latter being significantly high for M. acherusicum. M. gryllotalpa and M. acherusicum showed the highest proportion of lipids (19.15% and 18.35%, respectively). Isoleucine, glycine and alanine were the dominant amino acids in all species. In addition, amphipods collected from ponds showed low levels of heavy metals. Furthermore, the biochemical profiles of the five species of amphipods have been compared with other studied alternative prey. Therefore, pond amphipods are good candidates to be used as feed, and are proposed as a new sustainable economic resource to be used in aquaculture. G. insensibilis may be the best for intensive culture as an alternative feed resource because it shows: (1) adequate n-3 PUFA and PL composition; (2) high levels of glycine, alanine, tyrosine, isoleucine and lysine; (3) high natural densities; (4) large body size (>=1 cm), and (5) high concentration of calcium. Moreover, a combined culture of amphipods and fishes in these marsh ponds seems a promising and environmentally sustainable way to develop Integrate Multi-Trophic Aquaculture (IMTA) in these ecosystems. PMID- 29340234 TI - Achilles heel of a powerful invader: restrictions on distribution and disappearance of feral pigs from a protected area in Northern Pantanal, Western Brazil. AB - This paper focuses on a rare case of natural disappearance of feral pigs (Sus scrofa) in an extensive area without using traditional methods of eradication programs. The study was conducted both in the Private Reserve of Natural Heritage (PRNH) Sesc Pantanal and in an adjacent traditional private cattle ranch. In 1998, feral pigs were abundant and widely distributed in the PRNH. However, the feral pigs gradually disappeared from the area and currently, the absence of pigs in the PRNH contrasts with the adjacent cattle ranch where the species is abundant. To understand the current distribution of the species in the region we partitioned the effects of variation of feral pigs' presence considering the habitat structure (local), landscape composition and the occurrence of potential predators. Additionally, we modeled the distributions of the species in Northern Pantanal, projecting into the past using the classes of vegetation cover before the PRNH implementation (year 1988). Our results show areas with more suitability for feral pigs in regions where the landscape is dominated by pastures and permeated by patches of Seasonal Dry Forest. The species tends to avoid predominantly forested areas. Additionally, we recorded that the environmental suitability decreases exponentially as the distance from water bodies increases. The disappearance of feral pigs in the PRNH area seems to be associated with changes in the landscape and vegetation structure after the removal of the cattle. In the Brazilian Pantanal, the feral pigs' occurrence seems strongly conditioned to environmental changes associated to livestock activity. PMID- 29340235 TI - Evidence-based design and evaluation of a whole genome sequencing clinical report for the reference microbiology laboratory. AB - Background: Microbial genome sequencing is now being routinely used in many clinical and public health laboratories. Understanding how to report complex genomic test results to stakeholders who may have varying familiarity with genomics-including clinicians, laboratorians, epidemiologists, and researchers-is critical to the successful and sustainable implementation of this new technology; however, there are no evidence-based guidelines for designing such a report in the pathogen genomics domain. Here, we describe an iterative, human-centered approach to creating a report template for communicating tuberculosis (TB) genomic test results. Methods: We used Design Study Methodology-a human centered approach drawn from the information visualization domain-to redesign an existing clinical report. We used expert consults and an online questionnaire to discover various stakeholders' needs around the types of data and tasks related to TB that they encounter in their daily workflow. We also evaluated their perceptions of and familiarity with genomic data, as well as its utility at various clinical decision points. These data shaped the design of multiple prototype reports that were compared against the existing report through a second online survey, with the resulting qualitative and quantitative data informing the final, redesigned, report. Results: We recruited 78 participants, 65 of whom were clinicians, nurses, laboratorians, researchers, and epidemiologists involved in TB diagnosis, treatment, and/or surveillance. Our first survey indicated that participants were largely enthusiastic about genomic data, with the majority agreeing on its utility for certain TB diagnosis and treatment tasks and many reporting some confidence in their ability to interpret this type of data (between 58.8% and 94.1%, depending on the specific data type). When we compared our four prototype reports against the existing design, we found that for the majority (86.7%) of design comparisons, participants preferred the alternative prototype designs over the existing version, and that both clinicians and non-clinicians expressed similar design preferences. Participants showed clearer design preferences when asked to compare individual design elements versus entire reports. Both the quantitative and qualitative data informed the design of a revised report, available online as a LaTeX template. Conclusions: We show how a human-centered design approach integrating quantitative and qualitative feedback can be used to design an alternative report for representing complex microbial genomic data. We suggest experimental and design guidelines to inform future design studies in the bioinformatics and microbial genomics domains, and suggest that this type of mixed-methods study is important to facilitate the successful translation of pathogen genomics in the clinic, not only for clinical reports but also more complex bioinformatics data visualization software. PMID- 29340236 TI - DNA barcode-based survey of Trichoptera in the Crooked River reveals three new species records for British Columbia. AB - Anthropogenic pressures on aquatic systems have placed a renewed focus on biodiversity of aquatic macroinvertebrates. By combining classical taxonomy and DNA barcoding we identified 39 species of caddisflies from the Crooked River, a unique and sensitive system in the southernmost arctic watershed in British Columbia. Our records include three species never before recorded in British Columbia: Lepidostoma togatum (Lepidostomatidae), Ceraclea annulicornis (Leptoceridae), and possibly Cheumatopsyche harwoodi (Hydropsychidae). Three other specimens may represent new occurrence records and a number of other records seem to be substantial observed geographic range expansions within British Columbia. PMID- 29340237 TI - Using underwater video to evaluate the performance of the Fukui trap as a mitigation tool for the invasive European green crab (Carcinus maenas) in Newfoundland, Canada. AB - The European green crab (Carcinus maenas) is a destructive marine invader that was first discovered in Newfoundland waters in 2007 and has since become established in nearshore ecosystems on the south and west coast of the island. Targeted fishing programs aimed at removing green crabs from invaded Newfoundland ecosystems use Fukui traps, but the capture efficiency of these traps has not been previously assessed. We assessed Fukui traps using in situ observation with underwater video cameras as they actively fished for green crabs. From these videos, we recorded the number of green crabs that approached the trap, the outcome of each entry attempt (success or failure), and the number of exits from the trap. Across eight videos, we observed 1,226 green crab entry attempts, with only a 16% rate of success from these attempts. Based on these observations we believe there is scope to improve the performance of the Fukui trap through modifications in order to achieve a higher catch per unit effort (CPUE), maximizing trap usage for mitigation. Ultimately, a more efficient Fukui trap will help to control green crab populations in order to preserve the function and integrity of ecosystems invaded by the green crab. PMID- 29340238 TI - A revised cranial description of Massospondylus carinatus Owen (Dinosauria: Sauropodomorpha) based on computed tomographic scans and a review of cranial characters for basal Sauropodomorpha. AB - Massospondylus carinatus is a basal sauropodomorph dinosaur from the early Jurassic Elliot Formation of South Africa. It is one of the best-represented fossil dinosaur taxa, known from hundreds of specimens including at least 13 complete or nearly complete skulls. Surprisingly, the internal cranial anatomy of M. carinatus has never been described using computed tomography (CT) methods. Using CT scans and 3D digital representations, we digitally reconstruct the bones of the facial skeleton, braincase, and palate of a complete, undistorted cranium of M. carinatus (BP/1/5241). We describe the anatomical features of the cranial bones, and compare them to other closely related sauropodomorph taxa such as Plateosaurus erlenbergiensis, Lufengosaurus huenei, Sarahsaurus aurifontanalis and Efraasia minor. We identify a suite of character states of the skull and braincase for M. carinatus that sets it apart from other taxa, but these remain tentative due to the lack of comparative sauropodomorph braincase descriptions in the literature. Furthermore, we hypothesize 27 new cranial characters useful for determining relationships in non-sauropodan Sauropodomorpha, delete five pre existing characters and revise the scores of several existing cranial characters to make more explicit homology statements. All the characters that we hypothesized or revised are illustrated. Using parsimony as an optimality criterion, we then test the relationships of M. carinatus (using BP/1/5241 as a specimen-level exemplar) in our revised phylogenetic data matrix. PMID- 29340239 TI - FastViromeExplorer: a pipeline for virus and phage identification and abundance profiling in metagenomics data. AB - With the increase in the availability of metagenomic data generated by next generation sequencing, there is an urgent need for fast and accurate tools for identifying viruses in host-associated and environmental samples. In this paper, we developed a stand-alone pipeline called FastViromeExplorer for the detection and abundance quantification of viruses and phages in large metagenomic datasets by performing rapid searches of virus and phage sequence databases. Both simulated and real data from human microbiome and ocean environmental samples are used to validate FastViromeExplorer as a reliable tool to quickly and accurately identify viruses and their abundances in large datasets. PMID- 29340240 TI - Refining amino acid hydrophobicity for dynamics simulation of membrane proteins. AB - Coarse-grained (CG) models have been successful in simulating the chemical properties of lipid bilayers, but accurate treatment of membrane proteins and lipid-protein molecular interactions remains a challenge. The CgProt force field, original developed with the multiscale coarse graining method, is assessed by comparing the potentials of mean force for sidechain insertion in a DOPC bilayer to results reported for atomistic molecular dynamics simulations. Reassignment of select CG sidechain sites from the apolar to polar site type was found to improve the attractive interfacial behavior of tyrosine, phenylalanine and asparagine as well as charged lysine and arginine residues. The solvation energy at membrane depths of 0, 1.3 and 1.7 nm correlates with experimental partition coefficients in aqueous mixtures of cyclohexane, octanol and POPC, respectively, for sidechain analogs and Wimley-White peptides. These experimental values serve as important anchor points in choosing between alternate CG models based on their observed permeation profiles, particularly for Arg, Lys and Gln residues where the all atom OPLS solvation energy does not agree well with experiment. Available partitioning data was also used to reparameterize the representation of the peptide backbone, which needed to be made less attractive for the bilayer hydrophobic core region. The newly developed force field, CgProt 2.4, correctly predicts the global energy minimum in the potentials of mean force for insertion of the uncharged membrane-associated peptides LS3 and WALP23. CgProt will find application in studies of lipid-protein interactions and the conformational properties of diverse membrane protein systems. PMID- 29340241 TI - Risk factors for osteoporosis in male patients with chronic obstructive pulmonary disease in Taiwan. AB - Objective: To investigate the risk factors for osteoporosis in male Taiwanese patients with chronic obstructive pulmonary disease (COPD). Methods: This cross sectional study evaluated male COPD outpatients and age-matched male subjects at a regional teaching hospital. The following data were obtained and analyzed: bone mineral density of the lumbar spine and hip on dual-energy X-ray absorptiometry, demographic characteristics, questionnaire interview results, pulmonary function test results, chest posterior-anterior radiographic findings, and biochemical and high-sensitivity C-reactive protein (hs-CRP) levels. Results: Fifty-nine male COPD patients and 36 age-matched male subjects were enrolled. COPD patients had lower body mass index (BMI) (23.6 +/- 4.1 vs. 25.2 +/- 3.0 kg/m2) and higher total prevalence for osteoporosis and osteopenia than controls. Among COPD patients, patients with osteoporosis had lower BMI, body weight, waist circumference, and triglyceride level but higher hs-CRP level, and tended to have lower creatinine level. Binary logistic regression analysis for factors including age, BMI, creatinine, hs-CRP, smoking, steroid use, and forced expiratory volume in one second (FEV1) revealed that an hs-CRP level >=5 and decreased creatinine level were independent risk factors for osteoporosis in COPD patients. Lower BMI tended to be associated with osteoporosis development, although it did not reach statistical significance, and hs-CRP was associated with COPD severity and steroid use history. Conclusion: The total prevalence of osteoporosis and osteopenia in male Taiwanese COPD patients is higher than that in age-matched male subjects and systemic inflammation is an independent risk factors for osteoporosis. Low creatinine level in COPD patients should raise the suspicion of sarcopenia and associated increased risk of osteoporosis. PMID- 29340242 TI - A diagnostic model for minimal change disease based on biological parameters. AB - Background: Minimal change disease (MCD) is a kind of nephrotic syndrome (NS). In this study, we aimed to establish a mathematical diagnostic model based on biological parameters to classify MCD. Methods: A total of 798 NS patients were divided into MCD group and control group. The comparison of biological indicators between two groups were performed with t-tests. Logistic regression was used to establish the diagnostic model, and the diagnostic value of the model was estimated using receiver operating characteristic (ROC) analysis. Results: Thirteen indicators including Anti-phospholipase A2 receptor (anti-PLA2R) (P = 0.000), Total protein (TP) (P = 0.000), Albumin (ALB) (P = 0.000), Direct bilirubin (DB) (P = 0.002), Creatinine (Cr) (P = 0.000), Total cholesterol (CH) (P = 0.000), Lactate dehydrogenase (LDH) (P = 0.007), High density lipoprotein cholesterol (HDL) (P = 0.000), Low density lipoprotein cholesterol (LDL) (P = 0.000), Thrombin time (TT) (P = 0.000), Plasma fibrinogen (FIB) (P = 0.000), Immunoglobulin A (IgA) (P = 0.008) and Complement 3 (C3) (P = 0.019) were significantly correlated with MCD. Furthermore, the area under ROC curves of CH, HDL, LDL, TT and FIB were more than 0.70. Logistic analysis demonstrated that CH and TT were risk factors for MCD. According to the ROC of "CH+TT", the AUC was 0.827, with the sensitivity of 83.0% and the specificity of 69.8% (P = 0.000). Conclusion: The established diagnostic model with CH and TT could be used for classified diagnosis of MCD. PMID- 29340243 TI - Urban heat island effect on cicada densities in metropolitan Seoul. AB - Background: Urban heat island (UHI) effect, the ubiquitous consequence of urbanization, is considered to play a major role in population expansion of numerous insects. Cryptotympana atrata and Hyalessa fuscata are the most abundant cicada species in the Korean Peninsula, where their population densities are higher in urban than in rural areas. We predicted a positive relationship between the UHI intensities and population densities of these two cicada species in metropolitan Seoul. Methods: To test this prediction, enumeration surveys of cicada exuviae densities were conducted in 36 localities located within and in the vicinity of metropolitan Seoul. Samples were collected in two consecutive periods from July to August 2015. The abundance of each species was estimated by two resource-weighted densities, one based on the total geographic area, and the other on the total number of trees. Multiple linear regression analyses were performed to identify factors critical for the prevalence of cicada species in the urban habitat. Results: C. atrata and H. fuscata were major constituents of cicada species composition collected across all localities. Minimum temperature and sampling period were significant factors contributing to the variation in densities of both species, whereas other environmental factors related to urbanization were not significant. More cicada exuviae were collected in the second rather than in the first samplings, which matched the phenological pattern of cicadas in metropolitan Seoul. Cicada population densities increased measurably with the increase in temperature. Age of residential complex also exhibited a significantly positive correlation to H. fuscata densities, but not to C. atrata densities. Discussion: Effects of temperature on cicada densities have been discerned from other environmental factors, as cicada densities increased measurably in tandem with elevated temperature. Several mechanisms may contribute to the abundance of cicadas in urban environments, such as higher fecundity of females, lower mortality rate of instars, decline in host plant quality, and local adaptation of organisms, but none of them were tested in the current study. Conclusions: In sum, results of the enumeration surveys of cicada exuviae support the hypothesis that the UHI effect underlies the population expansion of cicadas in metropolitan Seoul. Nevertheless, the underlying mechanisms for this remain untested. PMID- 29340244 TI - An exploratory study of adolescent response to fluoxetine using psychological and biological predictors. AB - Background: Not enough is known about predicting therapeutic response to serotonin-specific reuptake inhibitors, and specifically to fluoxetine. This exploratory study used psychological and biological markers for (retrospective) prediction of treatment-response to fluoxetine in depressed and/or anxious adolescents. Methods: Forty-one consecutive adolescent outpatients with a primary diagnosis of severe affective and/or anxiety disorders were assessed and treated with an open-label 8-week trial of fluoxetine. Type D personality was assessed with the 14-item questionnaire, the DS14. In addition, TNFalpha, IL-6, and IL-1b were measured pre- and post-treatment. Results: There was an elevation of Type D personality in patients, compared to the adolescent population rate. Post treatment, 44% of patients were classified as non-responders; the relative risk of non-response for Type D personality patients was 2.8. Binary logistic regression predicting response vs. non-response showed a contribution of initial TNFalpha levels as well as Type D personality to non-response. Conclusions: In this exploratory study, the most significant contributor to non-response was Type D personality. However, the measurement of Type D was not prospective, and thus may be confounded with psychiatric morbidity. The measurement of personality in psychiatric settings may contribute to the understanding of treatment response and have clinical utility. PMID- 29340245 TI - Effects of the visual-feedback-based force platform training with functional electric stimulation on the balance and prevention of falls in older adults: a randomized controlled trial. AB - Background: Force platform training with functional electric stimulation aimed at improving balance may be effective in fall prevention for older adults. Aim of the study is to evaluate the effects of the visual-feedback-based force platform balance training with functional electric stimulation on balance and fall prevention in older adults. Methods: A single-centre, unblinded, randomized controlled trial was conducted. One hundred and twenty older adults were randomly allocated to two groups: the control group (n = 60, one-leg standing balance exercise, 12 min/d) or the intervention group (n = 60, force platform training with functional electric stimulation, 12 min/d). The training was provided 15 days a month for 3 months by physical therapists. Medial-lateral and anterior posterior maximal range of sway with eyes open and closed, the Berg Balance Scale, the Barthel Index, the Falls Efficacy scale-International were assessed at baseline and after the 3-month intervention. A fall diary was kept by each participant during the 6-month follow-up. Results: On comparing the two groups, the intervention group showed significantly decreased (p < 0.01) medial-lateral and anterior-posterior maximal range of sway with eyes open and closed. There was significantly higher improvement in the Berg Balance Scale (p < 0.05), the Barthel Index (p < 0.05) and the Falls Efficacy Scale-International (p < 0.05), along with significantly lesser number of injurious fallers (p < 0.05), number of fallers (p < 0.05), and fall rates (p < 0.05) during the 6-month follow-up in the intervention group. Conclusion: This study showed that the visual feedback-based force platform training with functional electric stimulation improved balance and prevented falls in older adults. PMID- 29340246 TI - Stat-tracks and mediotypes: powerful tools for modern ichnology based on 3D models. AB - Vertebrate tracks are subject to a wide distribution of morphological types. A single trackmaker may be associated with a range of tracks reflecting individual pedal anatomy and behavioural kinematics mediated through substrate properties which may vary both in space and time. Accordingly, the same trackmaker can leave substantially different morphotypes something which must be considered in creating ichnotaxa. In modern practice this is often captured by the collection of a series of 3D track models. We introduce two concepts to help integrate these 3D models into ichnological analysis procedures. The mediotype is based on the idea of using statistically-generated three-dimensional track models (median or mean) of the type specimens to create a composite track to support formal recognition of a ichno type. A representative track (mean and/or median) is created from a set of individual reference tracks or from multiple examples from one or more trackways. In contrast, stat-tracks refer to other digitally generated tracks which may explore variance. For example, they are useful in: understanding the preservation variability of a given track sample; identifying characteristics or unusual track features; or simply as a quantitative comparison tool. Both concepts assist in making ichnotaxonomical interpretations and we argue that they should become part of the standard procedure when instituting new ichnotaxa. As three-dimensional models start to become a standard in publications on vertebrate ichnology, the mediotype and stat-track concepts have the potential to help guiding a revolution in the study of vertebrate ichnology and ichnotaxonomy. PMID- 29340247 TI - Weekend effect in upper gastrointestinal bleeding: a systematic review and meta analysis. AB - Aim: To perform a systematic review and meta-analysis of the weekend effect on the mortality of patients with upper gastrointestinal bleeding(UGIB). Methods: The review protocol has been registered in the PROSPERO International Prospective Register of Systematic Reviews (registration number: CRD42017073313) and was written according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. We conducted a search of the PUBMED, COCHRANE, EMBASE and CINAHL databases from inception to August 2017. All observational studies comparing mortality between UGIB patients with weekend versus weekday admissions were included. Articles that were published only in abstract form or not published in a peer-reviewed journal were excluded. The quality of articles was assessed using the Newcastle-Ottawa Scale. We pooled results from the articles using random-effect models. Heterogeneity was evaluated by the chi square-based Q-test and I2 test. To address heterogeneity, we performed sensitivity and subgroup analyses. Potential publication bias was assessed via funnel plot. Results: Eighteen observational cohort studies involving 1,232,083 study patients were included. Weekend admission was associated with significantly higher 30-day or in-hospital mortality in all studies (OR = 1.12, 95% CI [1.07 1.17], P < 0.00001). Increased in-hospital mortality was also associated with weekend admission (OR = 1.12, 95% CI [1.08-1.17], P < 0.00001). No significant difference in in-hospital mortality was observed between patients admitted with variceal bleeding during the weekend or on weekdays (OR = 0.99, 95% CI [0.91 1.08], P = 0.82); however, weekend admission was associated with a 15% increase in in-hospital mortality for patients with non-variceal bleeding (OR = 1.15, 95% CI [1.09-1.21], P < 0.00001). The time to endoscopy for weekday admission was significantly less than that obtained for weekend admission (MD = -2.50, 95% CI [ 4.08--0.92], P = 0.002). Conclusions: The weekend effect is associated with increased mortality of UGIB patients, particularly in non-variceal bleeding. The timing of endoscopic intervention might be a factor that influences mortality of UGIB patients. PMID- 29340248 TI - Depth- and range-dependent variation in the performance of aquatic telemetry systems: understanding and predicting the susceptibility of acoustic tag-receiver pairs to close proximity detection interference. AB - Background: Passive acoustic telemetry using coded transmitter tags and stationary receivers is a popular method for tracking movements of aquatic animals. Understanding the performance of these systems is important in array design and in analysis. Close proximity detection interference (CPDI) is a condition where receivers fail to reliably detect tag transmissions. CPDI generally occurs when the tag and receiver are near one another in acoustically reverberant settings. Here we confirm transmission multipaths reflected off the environment arriving at a receiver with sufficient delay relative to the direct signal cause CPDI. We propose a ray-propagation based model to estimate the arrival of energy via multipaths to predict CPDI occurrence, and we show how deeper deployments are particularly susceptible. Methods: A series of experiments were designed to develop and validate our model. Deep (300 m) and shallow (25 m) ranging experiments were conducted using Vemco V13 acoustic tags and VR2-W receivers. Probabilistic modeling of hourly detections was used to estimate the average distance a tag could be detected. A mechanistic model for predicting the arrival time of multipaths was developed using parameters from these experiments to calculate the direct and multipath path lengths. This model was retroactively applied to the previous ranging experiments to validate CPDI observations. Two additional experiments were designed to validate predictions of CPDI with respect to combinations of deployment depth and distance. Playback of recorded tags in a tank environment was used to confirm multipaths arriving after the receiver's blanking interval cause CPDI effects. Results: Analysis of empirical data estimated the average maximum detection radius (AMDR), the farthest distance at which 95% of tag transmissions went undetected by receivers, was between 840 and 846 m for the deep ranging experiment across all factor permutations. From these results, CPDI was estimated within a 276.5 m radius of the receiver. These empirical estimations were consistent with mechanistic model predictions. CPDI affected detection at distances closer than 259-326 m from receivers. AMDR determined from the shallow ranging experiment was between 278 and 290 m with CPDI neither predicted nor observed. Results of validation experiments were consistent with mechanistic model predictions. Finally, we were able to predict detection/nondetection with 95.7% accuracy using the mechanistic model's criterion when simulating transmissions with and without multipaths. Discussion: Close proximity detection interference results from combinations of depth and distance that produce reflected signals arriving after a receiver's blanking interval has ended. Deployment scenarios resulting in CPDI can be predicted with the proposed mechanistic model. For deeper deployments, sea-surface reflections can produce CPDI conditions, resulting in transmission rejection, regardless of the reflective properties of the seafloor. PMID- 29340249 TI - A streptomycin resistance marker in H. parasuis based on site-directed mutations in rpsL gene to perform unmarked in-frame mutations and to verify natural transformation. AB - Haemophilus parasuis is a member of the family Pasteurellaceae and a major causative agent of Glasser's disease. This bacterium is normally a benign swine commensal but may become a deadly pathogen upon penetration into multiple tissues, contributing to severe lesions in swine. We have established a successive natural transformation-based markerless mutation system in this species. However, the two-step mutation system requires screening of natural competent cells, and cannot delete genes which regulate natural competence per se. In this study, we successfully obtained streptomycin-resistant derivatives from H. parasuis wild type strain SC1401 by using ethyl methane sulfonate (EMS, CH3SO2OC2H5). Upon sequencing and site-directed mutations, we uncovered that the EMS-induced point mutation in rpsL at codon 43rd (AAA -> AGA; K43R) or at 88th (AAA -> AGA; K88R) confers a much higher streptomycin resistance than clinical isolates. We have applied the streptomycin resistance marker as a positive selection marker to perform homologous recombination through conjugation and successfully generated a double unmarked in-frame targeted mutant 1401D88?tfox?arcA. Combined with a natural transformation-based knockout system and this genetic technique, multiple deletion mutants or attenuated strains of H. parasuis can be easily constructed. Moreover, the mutant genetic marker rpsL and streptomycin resistant phenotypes can serve as an effective tool to select naturally competent strains, and to verify natural transformation quantitatively. PMID- 29340250 TI - Integrated genomic analyses of lung squamous cell carcinoma for identification of a possible competitive endogenous RNA network by means of TCGA datasets. AB - The etiology of cancer includes aberrant cellular homeostasis where a compromised RNA regulatory network is a prominent contributing factor. In particular, noncoding RNAs including microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) were recently shown to play important roles in the initiation, progression, and metastasis of human cancers. Nonetheless, a mechanistic understanding of noncoding RNA functions in lung squamous cell carcinoma (LUSC) is lacking. To fill this critical gap in knowledge, we obtained mRNA, miRNA, and lncRNA expression data on patients with LUSC from the updated Cancer Genome Atlas (TCGA) database (2016). We successfully identified 3,366 mRNAs, 79 miRNAs, and 151 lncRNAs as key contributing factors of a high risk of LUSC. Furthermore, we hypothesized that the lncRNA-miRNA-mRNA regulatory axis positively correlates with LUSC and constructed a competitive endogenous RNA (ceRNA) network of LUSC by targeting interrelations with significantly aberrant expression data between miRNA and mRNA or lncRNA. Six ceRNAs (PLAU, miR-31-5p, miR-455-3p, FAM83A-AS1, MIR31HG, and MIR99AHG) significantly correlated with survival (P < 0.05). Finally, real-time quantitative PCR analysis showed that PLAU is significantly upregulated in SK-MES-1 cells compared with 16-BBE-T cells. Taken together, our findings represent new knowledge for a better understanding the ceRNA network in LUSC biology and pave the way to improved diagnosis and prognosis of LUSC. PMID- 29340251 TI - The relationships between exercise and affective states: a naturalistic, longitudinal study of recreational runners. AB - Background: Although people generally feel more positive and more energetic in the aftermath of exercise than before, longitudinal research on how exercise relates to within-person fluctuations in affect over the course of everyday life is still relatively limited. One constraint on doing such research is the need to provide participants with accelerometers to objectively record their exercise, and pagers to capture affective reports. Aims: We aimed to develop a methodology for studying affect and exercise using only technology that participants already possess, namely GPS running watches and smartphones. Using this methodology, we aimed to characterize within-individual fluctuations in affective valence and arousal in relation to bouts of exercise, and explore possible moderators of these fluctuations. Methods: We recruited a sample of 38 recreational runners. Participants provided daily affective reports for six weeks using their smartphones. Information on their runs was harvested from their own GPS devices via an online platform for athletes. Results: Average valence and arousal were higher on days when the person had run than on the next day, and higher the day after a run than on the days after that. Over the course of the day of a run, valence and arousal declined significantly as the time since the run increased. Physically fitter participants had more positive valence overall, and this was particularly true when they had not run recently. There was some evidence of higher-dose (i.e., longer and faster) runs being associated with lower arousal on the next and subsequent days. Gender did not moderate associations between running and valence or arousal. Discussion: Our study demonstrated the potential for studying the associations between affect and exercise in a way that is precise, undemanding for participants, and convenient for researchers, using technologies that participants already own and use. PMID- 29340253 TI - RBiomirGS: an all-in-one miRNA gene set analysis solution featuring target mRNA mapping and expression profile integration. AB - Background: With the continuous discovery of microRNA's (miRNA) association with a wide range of biological and cellular processes, expression profile-based functional characterization of such post-transcriptional regulation is crucial for revealing its significance behind particular phenotypes. Profound advancement in bioinformatics has been made to enable in depth investigation of miRNA's role in regulating cellular and molecular events, resulting in a huge quantity of software packages covering different aspects of miRNA functional analysis. Therefore, an all-in-one software solution is in demand for a comprehensive yet highly efficient workflow. Here we present RBiomirGS, an R package for a miRNA gene set (GS) analysis. Methods: The package utilizes multiple databases for target mRNA mapping, estimates miRNA effect on the target mRNAs through miRNA expression profile and conducts a logistic regression-based GS enrichment. Additionally, human ortholog Entrez ID conversion functionality is included for target mRNAs. Results: By incorporating all the core steps into one package, RBiomirGS eliminates the need for switching between different software packages. The modular structure of RBiomirGS enables various access points to the analysis, with which users can choose the most relevant functionalities for their workflow. Conclusions: With RBiomirGS, users are able to assess the functional significance of the miRNA expression profile under the corresponding experimental condition by minimal input and intervention. Accordingly, RBiomirGS encompasses an all-in-one solution for miRNA GS analysis. RBiomirGS is available on GitHub (http://github.com/jzhangc/RBiomirGS). More information including instruction and examples can be found on website (http://kenstoreylab.com/?page_id=2865). PMID- 29340252 TI - Positive selection on human gamete-recognition genes. AB - Coevolution of genes that encode interacting proteins expressed on the surfaces of sperm and eggs can lead to variation in reproductive compatibility between mates and reproductive isolation between members of different species. Previous studies in mice and other mammals have focused in particular on evidence for positive or diversifying selection that shapes the evolution of genes that encode sperm-binding proteins expressed in the egg coat or zona pellucida (ZP). By fitting phylogenetic models of codon evolution to data from the 1000 Genomes Project, we identified candidate sites evolving under diversifying selection in the human genes ZP3 and ZP2. We also identified one candidate site under positive selection in C4BPA, which encodes a repetitive protein similar to the mouse protein ZP3R that is expressed in the sperm head and binds to the ZP at fertilization. Results from several additional analyses that applied population genetic models to the same data were consistent with the hypothesis of selection on those candidate sites leading to coevolution of sperm- and egg-expressed genes. By contrast, we found no candidate sites under selection in a fourth gene (ZP1) that encodes an egg coat structural protein not directly involved in sperm binding. Finally, we found that two of the candidate sites (in C4BPA and ZP2) were correlated with variation in family size and birth rate among Hutterite couples, and those two candidate sites were also in linkage disequilibrium in the same Hutterite study population. All of these lines of evidence are consistent with predictions from a previously proposed hypothesis of balancing selection on epistatic interactions between C4BPA and ZP3 at fertilization that lead to the evolution of co-adapted allele pairs. Such patterns also suggest specific molecular traits that may be associated with both natural reproductive variation and clinical infertility. PMID- 29340254 TI - Response of methane production via propionate oxidation to carboxylated multiwalled carbon nanotubes in paddy soil enrichments. AB - Carboxylated multiwalled carbon nanotubes (MWCNTs-COOH) have become a growing concern in terms of their fate and toxicity in aqueous environments. Methane (CH4) is a major product of organic matter degradation in waterlogged environments. In this study, we determined the effect of MWCNTs-COOH on the production of CH4 from propionate oxidation in paddy soil enrichments. The results showed that the methanogenesis from propionate degradation was accelerated in the presence of MWCNTs-COOH. In addition, the rates of CH4 production and propionate degradation increased with increasing concentrations of MWCNTs-COOH. Scanning electron microscopy (SEM) observations showed that the cells were intact and maintained their structure in the presence of MWCNTs-COOH. In addition, SEM and fluorescence in situ hybridization (FISH) images revealed that the cells were in direct contact with the MWCNTs and formed cell-MWCNTs aggregates that contained both bacteria and archaea. On the other hand, nontoxic magnetite nanoparticles (Fe3O4) had similar effects on the CH4 production and cell integrity as the MWCNTs-COOH. Compared with no nanomaterial addition, the relative abundances of Geobacter and Methanosarcina species increased in the presence of MWCNTs-COOH. This study suggests that MWCNTs-COOH exerted positive rather than cytotoxic effects on the syntrophic oxidation of propionate in paddy soil enrichments and affected the bacterial and archaeal community structure at the test concentrations. These findings provide novel insight into the consequences of nanomaterial release into anoxic natural environments. PMID- 29340255 TI - Habitat use in south-west European skinks (genus Chalcides). AB - Background: Congeneric species of reptiles frequently exhibit partitioning in terms of their use of habitats or trophic resources in order to reduce competition. In this study, we investigated habitat use by two species of European skinks: Chalcides bedriagai and Chalcides striatus, based on 49 records from southern France, Spain, and Portugal. Methods: We measured three levels of niche descriptors: macroscale (climate, topography, and substrate), mesoscale (plant associations), and microscale (vegetation cover and shelters). We assessed the associations between these environmental descriptors and the occurrence of the skinks. Results: Our results showed that the two species occupied opposite extremes of the ecological gradient i.e., C. bedriagai in semi-arid environments and C. striatus in temperate-oceanic environments, but there was broad ecological overlap in transitional climates at all of the habitat scales examined. This overlap was demonstrated by the presence of syntopy in geographically distant sites with different environmental characteristics. Discussion: The morphological differences between the two species, and possibly their different use of microhabitats, might favor this mesoscale overlap between congeneric species, which is relatively unusual in Mediterranean lizards. PMID- 29340256 TI - Clinical Cholecystitis in the Absence of the Gallbladder. AB - The congenital absence of the gallbladder (CAG) is a rare condition with an incidence of 13-65 cases/ 100,000 in the general population. This occurs when the gallbladder and the cystic duct fail to bud from the common bile duct during the fifth week of gestation. Most commonly, the patients with congenital absence of the gallbladder are asymptomatic. When symptomatic, they present as biliary colic, dyspepsia, jaundice or very rarely as acute cholecystitis. We present a case of a 27-year-old female who presented with acute right upper quadrant abdominal pain. Further evaluation with an ultrasound revealed a contracted gallbladder with stones. The hepatobiliary iminodiacetic acid scan was significant for non-visualization of the gallbladder, consistent with cystic duct obstruction. The laparoscopic cholecystectomy was attempted, however, the gallbladder was not visualized, and the procedure was aborted. The post-operative magnetic resonant cholangiopancreatography was consistent with the diagnosis of congenital absence of gallbladder. PMID- 29340257 TI - Symmetrical Drug-related Intertriginous and Flexural Exanthema Induced by Doxycycline. AB - Symmetrical drug-related intertriginous and flexural exanthema (SDRIFE) is a cutaneous drug reaction characterized by erythema over the buttocks, thighs, groin, and flexural regions most commonly associated with the use of beta-lactam antibiotics. Although the exact pathophysiology of this disease remains unknown, it is theorized to be the result of a delayed hypersensitivity response presenting as a cutaneous eruption days to weeks after exposure to the drug. The treatment involves discontinuation of the suspected medication, symptomatic control of pruritus, and topical steroid therapy. A 51-year-old woman with homocystinuria and fibromyalgia was admitted with fevers, pancytopenia (later diagnosed to be acute myelogenous leukemia), and a targetoid cutaneous eruption in the setting of a recent tick bite. She was subsequently noted to have symmetric, pruritic, erythematous papules over the lateral neck, retroauricular regions, lateral aspects of the inframammary regions, medial upper arms, axillae, and the lower abdomen two weeks after starting doxycycline. Considering the morphology, distribution, and intense pruritis associated with the eruption, a diagnosis of SDRIFE was made. Doxycycline discontinuation along with topical steroid therapy resulted in the resolution of the eruption and pruritus. Given the widespread use of doxycycline, clinicians should be aware of this possible side effect. PMID- 29340258 TI - Atypical Initial Presentation of Painful Muscle Cramps in a Patient with Amyotrophic Lateral Sclerosis: A Case Report and Brief Review of the Literature. AB - Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized clinically by progressive muscle weakness that can occur proximally or distally in either the upper or lower extremities. It includes both upper motor neuron signs (spasticity, hyperreflexia, clonus, and Babinski sign) and lower motor neuron signs (atrophy, weakness, and muscle fasciculation). Initial presentation of progressively painful muscle cramps should lead the physician to screen for other signs of amyotrophic lateral sclerosis. We report the case of a 51-year-old male, who presented with dull muscle cramps in the right upper shoulder and arm. After a careful history and physical exam, it was found that patient had both upper and lower motor neuron signs; therefore, a diagnosis of amyotrophic lateral sclerosis was made. Amyotrophic lateral sclerosis should strongly be considered in the differential diagnosis of patients presenting with an atypical initial presentation of progressively painful muscle cramps. PMID- 29340260 TI - Nutritional status is associated with the return home in a long-term care health facility. AB - Background: The purpose of this study was to determine the association between nutritional status and the return home of older people living in a long-term care health facility (LCHF). Methods: A nested case control study was performed in 116 people >=65 years of age in a single LCHF. Nutritional status was assessed using the Mini Nutritional Assessment Short Form (MNA-SF) and activities of daily living by the Functional Independence Measure (FIM). The return home, duration of rehabilitation, and the family wanting the patient to return home were obtained from clinical records. Multivariate logistic regression analysis was used to assess whether malnutrition had independent effects on the return home. Results: The participants included 36 males and 80 females with a mean age of 82 years. Thirty-seven people returned home while 79 did not. The MNA-SF showed that 80 subjects were malnourished. Sixty-six of the participants received rehabilitation for longer than 1 hour per week, while 50 received rehabilitation for <1 hour. The proportion of subjects with malnutrition who returned home was significantly lower (P = .003) than in participants who did not return home. Multivariate logistic regression analysis showed that malnutrition (adjusted odds ratio [AOR], 0.23; 95% confidence interval [CI], 0.08-0.65; P = .006), total FIM score (AOR, 1.03; 95% CI, 1.01-1.06; P = .012), and the family wanting the patient to return home (AOR, 9.46; 95% CI, 3.19-28.12; P < .001) were independently associated with the return home. Conclusions: Nutritional status is associated with the return home in older people living in LCHF. PMID- 29340259 TI - Relationships between road-distance to primary care facilities and ischemic heart disease and stroke mortality in Hokkaido, Japan: A Bayesian hierarchical approach to ecological count data. AB - Objective: Poor access to a primary care physician may lead to poor control of risk factors for disease. This study investigated whether geographic access to a primary care physician was related to ischemic heart disease and stroke mortality. Methods: Road-distances from the centroids of the basic unit blocks of the 2010 Japanese Census to the nearest primary care facilities in Hokkaido, northern Japan, were measured using geographic information system (GIS) software. Next, block population-weighted mean road-distances to primary care facilities in all municipalities were calculated. The numbers of deaths from ischemic heart disease and stroke were obtained from the Vital Statistics Bureau. A Bayesian spatial conditional autoregressive (CAR) model was used to analyze relative risk (RR) by road-distance with the numbers of physicians in the municipality included as a covariate. Results: Relative risk (per 1 kilometer increased) of death from ischemic heart disease to road-distance to the nearest primary care facility was not significantly higher in men (1.108: 95% credible interval [CI] 0.999-1.037) and women (1.023: 95% CI 1.000-1.046). However, RR of death from stroke was significantly higher in men (1.019: 95% CI 1.005-1.032) and women (1.019: 95% CI 1.006-1.033). Conclusion: Longer road-distance to a primary care facility may increase the risk of stroke mortality. PMID- 29340261 TI - Medical support with acupuncture and massage therapies for disaster victims. AB - Background: After the Great East Japan Earthquake and Tsunami Disaster (GEJED) and Joso City Flood (JCF), a number of people were relocated to evacuation centers. In situations following a large-scale disaster, acupuncture can be applied for various health problems in evacuation centers. In this study, we report the medical support operation for evacuees with acupuncture and massage therapy (AP/MT) and its effectiveness. In addition, we propose an experience based guideline for AP/MT in such situations. Methods: We retrospectively investigated the treatment with AP/MT after GEJED and JCF based on the medical records that were coded. We performed AP/MT for evacuees or supporters in Iwanuma City, Shiogama City, and Natori City after the GEJED (total number of 1042), and in Joso City after the JCF (total number of 110). Results: The most common complaints, shoulder, back, and knee pain, were reported in 67.6% of patients after the GEJED and 80.9% of patients after the JCF. Acupuncture and massage therapy (AP/MT) significantly decreased the median Face Scale score of subjective symptoms in evacuees (before, 3.0 vs after, 1.0, P < .001) and supporters (before, 3.0 vs after, 1.0, P < .001) in the JCF. Conclusions: Evacuees and supporters in affected areas could benefit from AP/MT for relief of subjective symptoms. For proper management and safety support, we proposed a guideline of AP/MT for postdisaster situations. PMID- 29340262 TI - Recovery from a depressive episode during postgraduate residency training is associated with senior doctors' support. AB - Background: Depression among doctors in residency training can have significant impacts on the health of the residents and on patient safety. This study aimed to investigate factors associated with recovery from a depressive episode experienced during postgraduate residency training. Methods: A questionnaire was administered to 2935 first-year residents at the beginning of residency training in 2011; follow-up surveys were conducted after 3 months and at the end of the training in 2013. The questionnaire included the Center for Epidemiologic Studies Depression Scale and the Senior Doctor's Support Scale (SDSS). Logistic regression was used to identify associations between factors that may have been related to recovery from depressive episodes. Results: A total 182 residents experienced a depressive episode in the 3 months after starting residency training. When reassessed at the end of the 2-year training, 102 (56%) residents had recovered from the episode and 80 (44%) had not. Increased odds of recovery were associated with a middle or high score on the SDSS (middle score odds ratios [OR] 4.45, 95% confidence interval [CI] 1.0-18.0, P = .04; and high score OR 5.70, 95% CI 1.4-23.4, P = .02). Conclusions: Support from senior doctors should be enhanced to optimize recovery from depressive episodes experienced after the start of residency training. PMID- 29340263 TI - Diagnostic delay for imported malaria: A case of Plasmodium falciparum malaria misdiagnosed as common cold. AB - A 37-year-old Japanese man experienced fever and headache 8 days after returning to Japan following a 6-month stay in Nigeria. He visited two clinics but was sent home from each with a diagnosis of common cold. He was eventually brought to the emergency department with an altered mental status. Severe P. falciparum malaria was confirmed; his initial parasitemia index was 5.4%. He recovered fully with antimalarial treatment. This case suggests that primary care physicians should obtain recent travel history and consider malaria for any febrile patient who has returned from a malaria-endemic area. PMID- 29340264 TI - Reactive nonsexually related acute genital ulcers. AB - The case of a 19-year-old Japanese woman with reactive nonsexually related acute genital ulcers. PMID- 29340265 TI - Acute generalized pustular bacterid. AB - The case of a 70-year-old Japanese man with acute generalized pustular bacterid. PMID- 29340266 TI - 18F-FDG PET-CT in a patient with methotrexate-associated lymphoproliferative disorder. AB - 18F-FDG PET-CT clearly demonstrated the disease activity of MTX-LPD. PMID- 29340267 TI - Postherpetic abdominal pseudohernia: A diagnostic pitfall. AB - The accurate diagnosis of postherpetic abdominal pseudohernia, the rare complication of herpes zoster, is essential to avoid unnecessary imaging studies or surgery. Close observation and waiting for complete recovery are warranted considering the disease's self-resolving nature and favorable prognosis. PMID- 29340268 TI - Out with the old, in with the new: Assessing change in screen time when measurement changes over time. AB - We examined if screen time can be assessed over time when the measurement protocol has changed to reflect advances in technology. Beginning in 2011, 929 youth (9-12 years at time one) living in in New Brunswick (Canada) self-reported the amount of time spent watching television (cycles 1-13), using computers (cycles 1-13), and playing video games (cycles 3-13). Using longitudinal invariance to test a shifting indicators model of screen time, we found that the relationships between the latent variable reflecting overall screen time and the indicators used to assess screen time were invariant across cycles (weak invariance). We also found that 31 out of 37 indicator intercepts were invariant, meaning that most indicators were answered similarly (i.e., on the same metric) across cycles (partial strong invariance), and that 28 out of 37 indicator residuals were invariant indicating that similar sources of error were present over time (partial strict invariance). Overall, across all survey cycles, 76% of indicators were fully invariant. Whereas issues were noted when new examples of screen-based technology (e.g., iPads) were added, having established partial invariance, we suggest it is still possible to assess change in screen time despite having changing indicators over time. Although it is not possible to draw definitive conclusions concerning other self-report measures of screen time, our findings may assist other researchers considering modifying self-report measures in longitudinal studies to reflect technological advancements and increase the precision of their results. PMID- 29340269 TI - Examining relationships between perceptions and objective assessments of neighborhood environment and sedentary time: Data from the Washington, D.C. Cardiovascular Health and Needs Assessment. AB - Sedentary time (ST) and neighborhood environment (NE) are predictors of cardiovascular (CV) health. However, little is known about ST's relationship with NE. We examined associations of perceived and objective NE with ST in the predominantly African American faith-based population of the Washington, D.C. CV Health and Needs Assessment. After using community-based research principles, participants reported NE perceptions, including sidewalks, recreational areas, and crime presence. Factor analysis was conducted to explore pertinent constructs; factor sums were created and combined as Total Perception Score (TPS) (higher score = more favorable perception). Objective NE was assessed using Google Maps and the Active Neighborhood Checklist (ANC). ST was self-reported. Linear regression determined relationships between TPS and ST, and ANC scores and ST, for 1) overall population, 2) lower median-income D.C. areas, and 3) higher median-income DC and Maryland areas. For the sample (N = 98.9% African-American, 78% female), lower median-income areas had significantly lower mean TPS and ANC scores than higher median-income areas (p < 0.001). Three factors (neighborhood violence, physical/social environment, and social cohesion) were associated with overall NE perception. Among those in lower median-income areas, there was a negative association between TPS and ST that remained after covariate adjustment; this was not observed in higher median-income areas. There was no association between ANC scores and ST. Poorer NE perception is associated with greater ST for those in lower income areas, while objective environment is not related to ST. Multi-level interventions are needed to improve NE perceptions in lower-median income areas, reduce ST, and improve CV health. PMID- 29340270 TI - Outpatient, combined use of opioid and benzodiazepine medications in the United States, 1993-2014. AB - The combined use of opioid and benzodiazepine medications increases the risk of hazardous effects, such as respiratory depression. Although recent increases in outpatient use of opioid prescriptions have been documented, there are limited data regarding rates and correlates of combined opioid and benzodiazepines among adults in outpatient settings. Our objective was to examine annual trends in outpatient visits including opioids, benzodiazepines, and their combination among adults as well as clinical and demographic correlates. We used data from the 1993 2014 National Ambulatory Medical Care Survey (NAMCS) among non-elderly (i.e., ages 18-64 years) adults to examine the probability of a visit including an opioid, benzodiazepine, or their combination, in addition to clinical and demographic correlates. From 1993 to 2014, benzodiazepines-with-opioids visits increased from 9.8 to 62.5 (OR = 9.23, 95% CI = 5.45-15.65) per 10,000 visits. Highest-represented groups among benzodiazepines-with-opioids visits were older (50-64 years) (49.1%), white (88.8%), commercially insured (58.0%) patients during their first visit (87.6%) to a primary-care physician (41.9%). We identified a significant increase in the outpatient co-prescription of opioids and benzodiazepines, notably among adults aged 50-64 years during primary-care visits. Educational and policy changes to provide alternatives to benzodiazepine with-opioid co-prescription and limiting opioid prescription to pain specialists may reduce rates of this potentially hazardous combination. PMID- 29340271 TI - Transit use and physical activity: Findings from the Houston travel-related activity in neighborhoods (TRAIN) study. AB - Transportation-related physical activity can significantly increase daily total physical activity through active transportation or walking/biking to transit stops. The purpose of this study was to assess the relations between transit-use and self-reported and monitor-based physical activity levels in a predominantly minority population from the Houston Travel-Related Activity in Neighborhoods (TRAIN) Study. This was a cross-sectional analysis of 865 adults living in Houston, Texas between 2013 and 2015. The exposure variable was transit-use (non users, occasional users, and primary users). Self-reported and accelerometer determined physical activity were the outcomes of interest. Regression models adjusting for age, sex, race/ethnicity, and other covariates of interest were built to test the hypothesis that transit user status was directly associated with 1) minutes of moderate-intensity physical activity and 2) the prevalence of achieving the physical activity guidelines. The majority of participants were female, non-Hispanic black, and almost one-third had a high school education or less. After adjustment, primary transit-use was associated with 134.2 (p < 0.01) additional mean minutes per week of self-reported moderate-intensity transportation-related physical activity compared to non-users. Further, primary users had 7.3 (95% CI: 2.6-20.1) times the relative adjusted odds of meeting physical activity recommendations than non-users based on self-reported transportation-related physical activity. There were no statistically significant associations of transit-use with self-reported leisure-time or accelerometer derived physical activity. Transit-use has the potential for a large public health impact due to its sustainability and scalability. Therefore, encouraging the use of transit as a means to promote physical activity should be examined in future studies. PMID- 29340272 TI - Migraine-preventive prescription patterns by physician specialty in ambulatory care settings in the United States. AB - Many adults with migraine who require preventive therapy are often not prescribed the proper medications. The most likely reason is that primary care physicians are unacquainted with preventive medications for migraine. The present study assessed the migraine-preventive prescription patterns in office visits using data from the National Ambulatory Medical Care Survey from 2006 to 2009 in the United States. Patients who were 18 years or older and diagnosed with migraine were included in the analysis. In accordance with the recommendations of the headache guidelines, we included beta-blockers, antidepressants, triptans for short-term prevention of menstrual migraine, and other triptans for acute treatment. Weighted visits of adults with migraine prescribed with preventive medication ranged from 32.8% in 2006 to 38.6% in 2009. Visits to primary care physicians accounted for 72.6% of the analyzed adult migraine visits. Anticonvulsants (odds ratio [OR] 0.29, 95% confidence interval [CI] 0.14-0.57, p < 0.001) and triptans for menstrual migraine (OR 0.50, 95% CI 0.28-0.91, p = 0.025) were less frequently prescribed by primary care physicians compared with specialty care physicians, such as neurologists and psychiatrists. There were no significant differences in the prescription patterns of antidepressants and beta blockers between primary and specialty care physicians. Beta-blockers were prescribed to patients with comorbidity of hypertension, and antidepressants were used by patients with comorbidity of depression. There are differences in the prescription patterns of certain type of preventive medications between primary care physicians and specialty care physicians. PMID- 29340273 TI - Effects of Portal Vein Thrombosis on the Outcomes of Liver Cirrhosis: A Mexican Perspective. PMID- 29340274 TI - Breaking through Restricting Bottleneck for Better Asthma Control. PMID- 29340276 TI - Clinical Value of Ultrasonography in Diagnosis of Pulmonary Embolism in Critically Ill Patients. AB - Pulmonary embolism (PE) is a clinical emergency that will increase the mortality if complicated with unstable hemodynamics. Because of its nonspecific clinical symptoms, it's a great challenge to make a PE diagnosis. The golden standard to diagnose PE is computed tomography of pulmonary artery (CTPA), but a diagnosis of PE also composed of evaluation of PE risk factors, possibilities, and risk stratification. Ultrasonography may detect right ventricle strain related to hemodynamic change, intravascular thrombosis, thrombosis in right heart or pulmonary arteries, pulmonary infarction, and local pleural effusion. Combination of ultrasound and traditional PE possibility evaluation score may further improve the pretest probability of CTPA. A comprehensive ultrasonography may sometimes rule out PE and may disclose other causes for the clinical situations. A heart lung-vessel-integrated multiorgan ultrasonography can help with the diagnosis of PE and so should be a necessary weapon for the physicians. PMID- 29340275 TI - Timing of Transjugular Intrahepatic Portosystemic Shunt for Budd-Chiari Syndrome: An Italian Hepatologist's Perspective. AB - Budd-Chiari syndrome (BCS) management flow-chart is derived from experts' opinion and is not evidence-based. Guidelines suggest BCS management should follow a stepwise strategy: medical therapy as first-line treatment, revascularization or transjugular intrahepatic portosystemic shunt (TIPS) if no response to medical therapy, and liver transplant as rescue therapy. Recent evidence suggests that only medical therapy results in a bad long-term outcome. The biggest criticism of guidelines is the indication that BCS should receive further treatment only when hemodynamic consequences of portal hypertension become clinically evident. Recent data support that in BCS liver fibrosis could arise from chronic microvascular ischemia. A reasoning model of BCS physiopathology is that impaired hepatic vein outflow has hemodynamic consequences on portal hypertension development and causes hepatic fibrosis and liver failure through chronic ischemic damage. On this assumption is the concept that relieving liver congestion could ameliorate liver function and prevent development of BCS complications. Recently, early interventional treatment with TIPS for BCS has been reported to be effective. Early TIPS seems to be the best option for BCS management. Future multicenter controlled studies should compare the outcome of BCS treated with early interventional treatment compared with stepwise strategy. PMID- 29340277 TI - Comparative Computed Flow Dynamic Analysis of Different Optimization Techniques in Left Main Either Provisional or Culotte Stenting. AB - Background and Objectives: Provisional and culotte are the most commonly used techniques in left main (LM) stenting. The impact of different post-dilation techniques on fluid dynamic of LM bifurcation has not been yet investigated. The aim of this study is to evaluate, by means of computational fluid dynamic analysis (CFD), the impact of different post-dilation techniques including proximal optimization technique (POT), kissing balloon (KB), POT-Side-POT and POT KB-POT, 2-steps Kissing (2SK) and Snuggle Kissing balloon (SKB) on flow dynamic profile after LM provisional or culotte stenting. Methods: We considered an LM LCA-LCX bifurcation reconstructed after reviewing 100 consecutive patients (mean age 71.4 +/- 9.3 years, 49 males) with LM distal disease. The diameters of LAD and LCX were modelled according to the Finnet's law as following: LM 4.5 mm, LAD 3.5 mm, LCX 2.75 mm, with bifurcation angle set up at 55 degrees . Xience third generation stent (Abbot Inc., USA) was reconstructed and virtually implanted in provisional/cross-over and culotte fashion. POT, KB, POT-side-POT, POT-KB-POT, 2SK and SKB were virtually applied and analyzed in terms of the wall shear stress (WSS). Results: Analyzing the provisional stenting, the 2SK and KB techniques had a statistically significant lower impact on the WSS at the carina, while POT seemed to obtain a neutral effect. In the wall opposite to the carina, the more physiological profile has been obtained by KB and POT with higher WSS value and smaller surface area of the lower WSS. In culotte stenting, at the carina, POT-KB POT and 2SK had a very physiological profile; while at the wall opposite to the carina, 2SK and POT-KB-POT decreased significantly the surface area of the lower WSS compared to the other techniques. Conclusion: From the fluid dynamic point of view in LM provisional stenting, POT, 2SK and KB showed a similar beneficial impact on the bifurcation rheology, while in LM culotte stenting, POT-KB-POT and 2SK performed slightly better than the other techniques, probably reflecting a better strut apposition. PMID- 29340278 TI - Endoscopic Ultrasound-guided Pancreatic Pseudocyst Drainage with Lumen-apposing Metal Stents or Plastic Double-pigtail Stents: A Multifactorial Analysis. AB - Objective: To compare the efficiency of plastic and metal stents for symptomatic pancreatic pseudocyst (PP) drainage and analyze other main associated factors that affect the outcome of drainage therapy. Method: Rates of technical and clinical success, procedure-related side effects (hemorrhage, stent migration, and cyst rupture), reinterventions, and duration of hospital stay. Results: There were 52 patients, 40 patients underwent plastic stent placement and 12 patients underwent lumen-apposing metal stent (LAMS) placement. The total rate of technical success was 100%. The total rate of clinical success was 100%. The total rate of adverse events was 7.7% (4/52). On multiple logistic regression analysis, the use of plastic stents (P < 0.05, Exp B = 12.168) and the presence of a large cyst (P < 0.05, Exp B = 1.036) were shown to significantly increase the risk of reintervention. On multivariate linear regression analysis, etiology of pseudocyst (P < 0.05, B = -8.427, -9.785, -5.514) was associated with prolonged hospital stent, while stent type was not shown be a factor (P > 0.05). Conclusion: Both plastic and LAMSs are proven to be highly efficient in PP drainage. The LAMS is superior in preventing complications such as migration and cyst leakage and reducing the rate of reintervention. PMID- 29340279 TI - Effect of MTHFR A1298C and MTRR A66G Genetic Mutations on Homocysteine Levels in the Chinese Population: A Systematic Review and Meta-analysis. AB - Background and Objectives: The Chinese population typically has inadequate folate intake and no mandatory folic acid fortification. Methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) are the two key regulatory enzymes in the folate/homocysteine (Hcy) metabolism. Hcy has been implicated in the pathogenesis of cardiovascular disease. We conducted a meta analysis to assess whether the MTHFR gene A1298C and the MTRR gene A66G polymorphisms affect Hcy levels in the Chinese population. Methods: This analysis included 13 studies with Hcy levels reported as one of the study measurements. Summary estimates of weighted mean differences and 95% confidence intervals (CIs) were obtained using random-effect models. Results: Overall, there were no significant differences in Hcy concentrations between participants with the MTHFR 1298 CC (12 trials, n = 129), AA (n = 2166; beta, -0.51 MUmol/L; 95%CI: -2.14, 1.11; P = 0.53), or AC genotype (n = 958; beta, 0.55 MUmol/L; 95%CI: -0.72, 1.82; P = 0.40). Consistently, compared to those with the MTRR 66 GG genotype (6 trials, n = 156), similar Hcy concentrations were found in participants with the AA (n = 832; beta, -0.43 MUmol/L; 95%CI: -1.04, 0.17; P = 0.16) or AG (n =743; beta, -0.57 MUmol/L; 95%CI: -1.46, 0.31; P = 0.21) genotype. Similar results were observed for the dominant and recessive models. Conclusions: Neither the MTHFR A1298C polymorphism nor the MTRR A66G polymorphism affects Hcy levels in the Chinese population. PMID- 29340280 TI - Serum Vitamin D Levels in Treatment-naive Chronic Hepatitis B Patients. AB - Background and Objectives: According to the demographic health survey conducted in 2015, Egypt had 10% documented prevalence of anti-HBc positive patients aged 1 59 and 1% viremic patients amongst the population in the same age group, with a domination of genotype D. Several studies claimed the possible role of vitamin D deficiency in hepatitis B virus (HBV) replication and disease progression. Patients and Methods: Serum vitamin D levels [25(OH D3] were assessed in 96 HBeAg negative non-cirrhotic chronic HBV patients and 25 healthy subjects classified as following: Group I: 48 chronic HBV patients with persistently normal ALT levels and HBV DNA level < 2000 IU/mL for >= 6 months; Group II: 48 chronic HBV patients with CHB with persistently elevated ALT and HBV DNA level >= 2000 IU/mL for >= 6 months; and Group III: 25 apparently healthy subjects with normal liver enzymes and negative hepatitis viral markers were taken as the control group. Results: Vitamin D was much more deficient in group II than in group I and group III being 11.55 +/- 3.97 ng/mL, 15.03 +/- 3.45, 27.00 +/- 6.76 ng/mL (P < 0.001), respectively, and a strong negative correlation was observed between vitamin D levels and HBV DNA levels (P = 0.043) in groups I and II. Conclusion: The current study showed high HBV DNA replication in patients with vitamin D deficiency suggesting the antimicrobial immunomodulatory role of vitamin D. PMID- 29340281 TI - Urgent Need to Define Pretreatment Predictors of Immune Check Point Inhibitors Related Endocrinopathies: A Case Report and Review of Literature. AB - Immune check point inhibitors have revolutionized the treatment of metastatic malignancies. They are a promising area in oncology and more drugs are likely to be available in the coming years. Along with the promise of better response oncologically, there is an increased incidence of endocrinopathies related to autoimmunity. This case report illustrates the dramatic development of hypothyroidism in a patient with underlying subclinical hyperthyroidism. It also suggests the potential pretreatment predictors of endocrinopathies related to these immune check point inhibitors. PMID- 29340282 TI - Should Vasoconstrictors be Considered in a Cirrhotic Patient with Acute Non variceal Upper Gastrointestinal Bleeding? AB - Varices manifest as a major etiology of upper gastrointestinal bleeding in patients with chronic liver diseases, such as liver cirrhosis and hepatocellular carcinoma. By contrast, non-variceal upper gastrointestinal bleeding is rare. Pharmacological treatment differs between patients with variceal and non-variceal bleeding. Vasoconstrictors are recommended for the treatment of variceal bleeding, rather than non-variceal bleeding. In contrast, pump proton inhibitors are recommended for the treatment of non-variceal bleeding, rather than variceal bleeding. Herein, we present a case with liver cirrhosis and acute upper gastrointestinal bleeding who had a high risk of rebleeding (i.e., Child-Pugh class C, hepatocellular carcinoma, portal vein thrombosis, low albumin, and high international normalized ratio and D-dimer). As the source of bleeding was obscure, only terlipressin without pump proton inhibitors was initially administered. Acute bleeding episode was effectively controlled. After that, an elective endoscopic examination confirmed that the source of bleeding was attributed to peptic ulcer, rather than varices. Based on this preliminary case report, we further discussed the potential role of vasoconstrictors in a patient with cirrhosis with acute non-variceal upper gastrointestinal bleeding. PMID- 29340283 TI - European Respiratory Society International Congress 2017: highlights from the Clinical Assembly. AB - This article contains highlights and a selection of the scientific advances from the European Respiratory Society's Clinical Assembly (Assembly 1 and its six respective groups) that were presented at the 2017 European Respiratory Society International Congress in Milan, Italy. The most relevant topics from each of the groups will be discussed, covering a wide range of areas including clinical problems, rehabilitation and chronic care, thoracic imaging, interventional pulmonology, diffuse and parenchymal lung diseases, and general practice and primary care. In this comprehensive review, the newest research and actual data as well as award-winning abstracts and highlight sessions will be discussed. PMID- 29340284 TI - Optical imaging during toddlerhood: brain responses during naturalistic social interactions. AB - Despite the importance of our ability to interact and communicate with others, the early development of the social brain network remains poorly understood. We examined brain activity in 12- to 14-month-old infants while they were interacting live with an adult in two different naturalistic social scenarios (i.e., reading a picture book versus singing nursery rhymes with gestures), as compared to baseline (i.e., showing infants a toy without eye contact or speech). We used functional near-infrared spectroscopy (fNIRS) recorded over the right temporal lobe of infants to assess the role of the superior temporal sulcus temporoparietal junction (STS-TPJ) region during naturalistic social interactions. We observed increased cortical activation in the STS-TPJ region to live social stimuli in both socially engaging conditions compared to baseline during real life interaction, with greater activation evident for the joint attention (reading book) condition relative to the social nursery rhymes. These results supported the view that the STS-TPJ region, engaged in the cortical social brain network, is already specialized in infants for processing social signals and is sensitive to communicative situations. This study also highlighted the potential of fNIRS for studying brain function in infants entering toddlerhood during live social interaction. PMID- 29340285 TI - Quantitative bone scan lesion area as an early surrogate outcome measure indicative of overall survival in metastatic prostate cancer. AB - A clinical validation of the bone scan lesion area (BSLA) as a quantitative imaging biomarker was performed in metastatic castration-resistant prostate cancer (mCRPC). BSLA was computed from whole-body bone scintigraphy at baseline and week 12 posttreatment in a cohort of 198 mCRPC subjects (127 treated and 71 placebo) from a clinical trial involving a different drug from the initial biomarker development. BSLA computation involved automated image normalization, lesion segmentation, and summation of the total area of segmented lesions on bone scan AP and PA views as a measure of tumor burden. As a predictive biomarker, treated subjects with baseline BSLA [Formula: see text] had longer survival than those with higher BSLA ([Formula: see text] and [Formula: see text]). As a surrogate outcome biomarker, subjects were categorized as progressive disease (PD) if the BSLA increased by a prespecified 30% or more from baseline to week 12 and non-PD otherwise. Overall survival rates between PD and non-PD groups were statistically different ([Formula: see text] and [Formula: see text]). Subjects without PD at week 12 had longer survival than subjects with PD: median 398 days versus 280 days. BSLA has now been demonstrated to be an early surrogate outcome for overall survival in different prostate cancer drug treatments. PMID- 29340286 TI - Cancer imaging phenomics toolkit: quantitative imaging analytics for precision diagnostics and predictive modeling of clinical outcome. AB - The growth of multiparametric imaging protocols has paved the way for quantitative imaging phenotypes that predict treatment response and clinical outcome, reflect underlying cancer molecular characteristics and spatiotemporal heterogeneity, and can guide personalized treatment planning. This growth has underlined the need for efficient quantitative analytics to derive high dimensional imaging signatures of diagnostic and predictive value in this emerging era of integrated precision diagnostics. This paper presents cancer imaging phenomics toolkit (CaPTk), a new and dynamically growing software platform for analysis of radiographic images of cancer, currently focusing on brain, breast, and lung cancer. CaPTk leverages the value of quantitative imaging analytics along with machine learning to derive phenotypic imaging signatures, based on two-level functionality. First, image analysis algorithms are used to extract comprehensive panels of diverse and complementary features, such as multiparametric intensity histogram distributions, texture, shape, kinetics, connectomics, and spatial patterns. At the second level, these quantitative imaging signatures are fed into multivariate machine learning models to produce diagnostic, prognostic, and predictive biomarkers. Results from clinical studies in three areas are shown: (i) computational neuro-oncology of brain gliomas for precision diagnostics, prediction of outcome, and treatment planning; (ii) prediction of treatment response for breast and lung cancer, and (iii) risk assessment for breast cancer. PMID- 29340287 TI - Fully automated detection of breast cancer in screening MRI using convolutional neural networks. AB - Current computer-aided detection (CADe) systems for contrast-enhanced breast MRI rely on both spatial information obtained from the early-phase and temporal information obtained from the late-phase of the contrast enhancement. However, late-phase information might not be available in a screening setting, such as in abbreviated MRI protocols, where acquisition is limited to early-phase scans. We used deep learning to develop a CADe system that exploits the spatial information obtained from the early-phase scans. This system uses three-dimensional (3-D) morphological information in the candidate locations and the symmetry information arising from the enhancement differences of the two breasts. We compared the proposed system to a previously developed system, which uses the full dynamic breast MRI protocol. For training and testing, we used 385 MRI scans, containing 161 malignant lesions. Performance was measured by averaging the sensitivity values between 1/8-eight false positives. In our experiments, the proposed system obtained a significantly ([Formula: see text]) higher average sensitivity ([Formula: see text]) compared with that of the previous CADe system ([Formula: see text]). In conclusion, we developed a CADe system that is able to exploit the spatial information obtained from the early-phase scans and can be used in screening programs where abbreviated MRI protocols are used. PMID- 29340288 TI - 7T MRI subthalamic nucleus atlas for use with 3T MRI. AB - Deep brain stimulation (DBS) of the subthalamic nucleus (STN) reduces motor symptoms in most patients with Parkinson disease (PD), yet may produce untoward effects. Investigation of DBS effects requires accurate localization of the STN, which can be difficult to identify on magnetic resonance images collected with clinically available 3T scanners. The goal of this study is to develop a high quality STN atlas that can be applied to standard 3T images. We created a high definition STN atlas derived from seven older participants imaged at 7T. This atlas was nonlinearly registered to a standard template representing 56 patients with PD imaged at 3T. This process required development of methodology for nonlinear multimodal image registration. We demonstrate mm-scale STN localization accuracy by comparison of our 3T atlas with a publicly available 7T atlas. We also demonstrate less agreement with an earlier histological atlas. STN localization error in the 56 patients imaged at 3T was less than 1 mm on average. Our methodology enables accurate STN localization in individuals imaged at 3T. The STN atlas and underlying 3T average template in MNI space are freely available to the research community. The image registration methodology developed in the course of this work may be generally applicable to other datasets. PMID- 29340289 TI - Automatic segmentation method of pelvic floor levator hiatus in ultrasound using a self-normalizing neural network. AB - Segmentation of the levator hiatus in ultrasound allows the extraction of biometrics, which are of importance for pelvic floor disorder assessment. We present a fully automatic method using a convolutional neural network (CNN) to outline the levator hiatus in a two-dimensional image extracted from a three dimensional ultrasound volume. In particular, our method uses a recently developed scaled exponential linear unit (SELU) as a nonlinear self-normalizing activation function, which for the first time has been applied in medical imaging with CNN. SELU has important advantages such as being parameter-free and mini batch independent, which may help to overcome memory constraints during training. A dataset with 91 images from 35 patients during Valsalva, contraction, and rest, all labeled by three operators, is used for training and evaluation in a leave one-patient-out cross validation. Results show a median Dice similarity coefficient of 0.90 with an interquartile range of 0.08, with equivalent performance to the three operators (with a Williams' index of 1.03), and outperforming a U-Net architecture without the need for batch normalization. We conclude that the proposed fully automatic method achieved equivalent accuracy in segmenting the pelvic floor levator hiatus compared to a previous semiautomatic approach. PMID- 29340290 TI - Tailoring four-dimensional cone-beam CT acquisition settings for fiducial marker based image guidance in radiation therapy. AB - Use of four-dimensional cone-beam CT (4D-CBCT) and fiducial markers for image guidance during radiation therapy (RT) of mobile tumors is challenging due to the trade-off among image quality, imaging dose, and scanning time. This study aimed to investigate different 4D-CBCT acquisition settings for good visibility of fiducial markers in 4D-CBCT. Using these 4D-CBCTs, the feasibility of marker based 4D registration for RT setup verification and manual respiration-induced motion quantification was investigated. For this, we applied a dynamic phantom with three different breathing motion amplitudes and included two patients with implanted markers. Irrespective of the motion amplitude, for a medium field of view (FOV), marker visibility was improved by reducing the imaging dose per projection and increasing the number of projection images; however, the scanning time was 4 to 8 min. For a small FOV, the total imaging dose and the scanning time were reduced (62.5% of the dose using a medium FOV, 2.5 min) without losing marker visibility. However, the body contour could be missing for a small FOV, which is not preferred in RT. The marker-based 4D setup verification was feasible for both the phantom and patient data. Moreover, manual marker motion quantification can achieve a high accuracy with a mean error of [Formula: see text]. PMID- 29340291 TI - Erratum: Endoscopic esophagogastric anastomosis with luminal apposition Axios stent (LAS) approach: a new concept for hybrid "Lewis Santy". AB - [This corrects the article DOI: 10.1055/s-0043-106577.]. PMID- 29340293 TI - Can sedation using a combination of propofol and dexmedetomidine enhance the satisfaction of the endoscopist in endoscopic submucosal dissection? AB - Background and study aims: The aim of this pilot randomized controlled trial was to evaluate and compare the satisfaction of the endoscopist along with the effectiveness and safety of sedation between sedation protocol using a combination of propofol (PF) and dexmedetomidine (DEX) (Combination group) and sedation protocol using PF alone (PF group) during gastric endoscopic submucosal dissection (ESD). Patients and methods : Fifty-eight patients with gastric neoplasias scheduled for gastric ESD were enrolled and randomly assigned to the two groups. The satisfaction scores of the endoscopists and the parameters for the effectiveness and safety of sedation were evaluated by comparisons between the two groups. Results : The satisfaction scores of the endoscopists, which were measured using a visual analogue scale, were significantly higher in the Combination group than in the PF group (88 vs. 69, P = 0.003). The maintenance dose of PF was lower in the Combination group than in the PF group (2 mg/kg/h vs. 5 mg/kg/h, P < 0.001), and the number of rescue PF injections was fewer in the Combination group than in the PF group (2 times vs. 6 times, P < 0.001). The incidence of bradycardia (defined as a pulse rate <= 45 bpm) in the Combination group was higher than that in the PF group (37.9 % vs. 10.3 %, P = 0.029). Conclusions : This study suggests that gastroenterologist-directed sedation using a combination of PF and DEX during gastric ESD can enhance the satisfaction levels of endoscopists by providing stable sedation with an acceptable safety profile. PMID- 29340294 TI - A comparison of endoscopic and non-endoscopic biliary intervention outcomes in patients with prior bariatric surgery. AB - Background and study aims : Endoscopic biliary intervention (BI) is often difficult to perform in patients with prior bariatric surgery (BRS). We sought to analyze outcomes of patients with prior BRS undergoing endoscopic and non endoscopic BI. Patients and methods: The Nationwide Inpatient Sample (2007 - 2011) was reviewed to identify all adult inpatients (>= 18 years) with a history of BRS undergoing BI. The clinical outcomes of interest were in-patient mortality, length of stay (LOS), and total hospital charges. Results: There were 7,343 patients with prior BRS who underwent BIs where a majority were endoscopic (4,482 vs. 2,861, P < 0.01). The mean age was 50+/-30.8 years and the majority were females (80.5 %). Gallstone-related disease was the most common indication for BI and managed more often with primary endoscopic management (2,146 vs. 1,132, P < 0.01). Inpatient mortality was not significantly different between patients undergoing primary endoscopic versus non-endoscopic BI (0.2 % vs. 0.7 %, P = 0.2). Patients with sepsis were significantly more likely to incur failed primary endoscopic BI (OR 2.74, 95 % CI 1.15, 6.53) and were more likely to be managed with non-endoscopic BI (OR 2.13, 95 % CI 1.3, 3.5). Primary non endoscopic BI and failed endoscopic BI were both associated with longer LOS (by 1.77 days, P < 0.01 and by 2.17 days, P < 0.01, respectively) and higher hospitals charges (by $11,400, P < 0.01 and by $ 14,200, P < 0.01, respectively). Conclusion: Primary endoscopic management may be a safe and cost effective approach for patients with prior BRS who need BI. While primary endoscopic biliary intervention is more common, primary non-endoscopic intervention may be used more often for sepsis. PMID- 29340295 TI - Usage characteristics and adverse event rates of the direct puncture and pull techniques for percutaneous endoscopic gastrostomy in patients with malignant tumors of the upper aerodigestive tract. AB - Background and study aims: Patients with malignant tumors of the upper gastrointestinal tract are at risk of weight loss. Early supportive nutrition therapy is therefore recommended and usually requires placement of a percutaneous endoscopic gastrostomy (PEG). The aim of this study was to compare adverse events and usage characteristics of the direct puncture technique with those of the traditional pull technique when used in patients with endoscopically passable tumors. The primary endpoint was the rate of inflammatory adverse events (AEs) at the gastrostomy fistula. The secondary endpoint was the long-term rate of puncture-site metastases. Patients and methods: One hundred twenty patients (median age 56; IQR 36, 86 years) were randomized and treated per protocol in this prospective open randomized single-center study. Follow-ups were conducted on the third and seventh post-interventional days, after 1, 3 and 6 months and the last follow-up 5 years after intervention. Results: Within the short-term follow-up period of 6 months after PEG placement, AEs were noted in 47 patients (39.2 %). These included 22 inflammations and 16 device dislocations and were mainly found in the puncture group (33 vs. 14 in the pull group) with a significantly increased incidence in the first month after PEG insertion ( P = 0.001). Evaluation of the 5-year data did not reveal any significant differences. The gastrostomy tube was used in 101 patients (84.2 %) (range 18 days to 5 years). Conclusions: Our results favor the pull technique for patients with endoscopically passable tumors of the upper gastrointestinal tract due to less short-term adverse events. Both systems contributed equally to secure long-term use. PMID- 29340296 TI - Risk of colonic diverticular rebleeding according to endoscopic appearance. AB - Background and study aims: Re-commencement of bleeding (rebleeding) of colonic diverticula after endoscopic hemostasis is a clinical problem. This study aimed to examine whether endoscopic visibility of colonic diverticular bleeding affects the risk of rebleeding after endoscopic hemostasis. Patients and methods: We performed a retrospective review of endoscopic images and medical charts of patients with colonic diverticular bleeding who underwent endoscopic hemostasis. Endoscopic visibility was classified into two types according to visibility of the source of bleeding; source invisibility due to bleeding or attached hematin (type 1), or endoscopically visible responsive vessels (type 2). Rebleeding rates within one year after initial hemostasis were examined. Results: Of 93 patients with successful endoscopic hemostasis, 38 (41 %) showed type 1 visibility, while the remaining presented type 2. All patients received hemostasis with clipping, rebleeding developed in 20 patients (22 %). Type 1 visibility was more likely to be observed in patients with rebleeding (65 % vs. 34 %, P = 0.013). Multivariate analysis revealed that after endoscopic hemostasis, type 1 visibility (invisible source) was the only independent risk factor for colonic diverticular rebleeding (odds ratio, 3.05; 95 % confidence interval, 1.03 - 9.59, P = 0.044). Kaplan Meier curve showed the cumulative incidence of rebleeding was significantly higher in patients with type 1 visibility than those with type 2 visibility ( P = 0.0033, log-rank test). Conclusion: Hemostasis by clipping for colonic diverticular bleeding without definite observation of the source of bleeding may not be sufficiently effective. Other hemostatic methods, including band ligation, should be considered when the source of bleeding is unclear. PMID- 29340297 TI - Acetic acid-guided biopsies in Barrett's surveillance for neoplasia detection versus non-targeted biopsies (Seattle protocol): A feasibility study for a randomized tandem endoscopy trial. The ABBA study. AB - Background and study aims : Barrett's esophagus is a potentially pre-cancerous condition, affecting 375,000 people in the UK. Patients receive a 2-yearly endoscopy to detect cancerous changes, as early detection and treatment results in better outcomes. Current treatment requires random mapping biopsies along the length of Barrett's, in addition to biopsy of visible abnormalities. As only 13 % of pre-cancerous changes appear as visible nodules or abnormalities, areas of dysplasia are often missed. Acetic acid chromoendoscopy (AAC) has been shown to improve detection of pre-cancerous and cancerous tissue in observational studies, but no randomized controlled trials (RCTs) have been performed to date. Patients and methods : A "tandem" endoscopy cross-over design. Participants will be randomized to endoscopy using mapping biopsies or AAC, in which dilute acetic acid is sprayed onto the surface of the esophagus, highlighting tissue through an whitening reaction and enhancing visibility of areas with cellular changes for biopsy. After 4 to 10 weeks, participants will undergo a repeat endoscopy, using the second method. Rates of recruitment and retention will be assessed, in addition to the estimated dysplasia detection rate, effectiveness of the endoscopist training program, and rates of adverse events (AEs). Qualitative interviews will explore participant and endoscopist acceptability of study design and delivery, and the acceptability of switching endoscopic techniques for Barrett's surveillance. Results : Endoscopists' ability to diagnose dysplasia in Barrett's esophagus can be improved. AAC may offer a simple, universally applicable, easily-acquired technique to improve detection, affording patients earlier diagnosis and treatment, reducing endoscopy time and pathology costs. The ABBA study will determine whether a crossover "tandem" endoscopy design is feasible and acceptable to patients and clinicians and gather outcome data to power a definitive trial. PMID- 29340298 TI - Efficacy and safety of sedation during endoscopic submucosal dissection of gastric cancers using a comparative trial of propofol versus midazolam. AB - Background and study aims : Proper sedation is necessary for the safe and satisfactory completion of endoscopic submucosal dissection (ESD) for early gastric cancer. This study was conducted as a comparative trial of efficacy and safety, comparing propofol-based sedation and midazolam-based sedation during ESD of early gastric cancer patients. Patients and methods : This study examined 64 lesions in 58 patients treated using ESD with midazolam plus pentazocine between July 2013 and January 2014 (group M) and 237 lesions in 216 patients treated by ESD using propofol plus pentazocine between February 2014 and December 2015 (group P). The two groups were compared in terms of the frequency of body movement during ESD as the primary outcome and in terms of the procedure time, en bloc resection rate, intraoperative change in cardiorespiratory dynamics, and postoperative awareness as the secondary outcomes. Body movement was defined as movement by a patient that required interruption of the procedure or restraint of the patient's body trunk, and addition of a sedative agent. Results : The median frequency of body movement during ESD was significantly lower in group P (0 times) than in group M (3 times) ( P < 0.001). No significant difference was found for the mean procedure time (117 min in group P; 127 min in group M). Although no significant difference was found in the incidence of hypoxemia, bradycardia, or bradypnea, the incidence of hypotension was significantly higher in group P (31.5 %) than in group M (6.9 %) ( P = 0.004). Patients in group P had significantly higher postoperative awareness immediately after ESD and at 1 hour after ESD ( P = 0.002 and 0.022, respectively). Conclusion : These results demonstrate the efficacy and safety of propofol-based sedation for gastric ESD. PMID- 29340299 TI - Prospective study of the feasibility of point-of-care testing strategy for carbapenem-resistant organism detection. AB - Background/aims: In an investigator-initiated, prospective study, we evaluated the feasibility of a five-gene sequence point-of-care (POC) testing strategy (Xpert CARBA-R Assay, Cepheid Inc., Sunnyvale, CA, USA), compared to reference laboratory PCR (48 - 72 hours turnaround time, two gene sequences), in patients undergoing endoscopic retrograde cholangiopancreatography (ERCP) and in a hospital outbreak investigation. Methods: After informed consent, patients undergoing ERCP (September 2015 - April 2016, n = 191) at Mayo Clinic and potential hospital contacts (n = 9) of an index carbapenem-resistant organism (CRO)-positive inpatient were included. Two rectal swabs, one each for reference and POC assays were obtained. The Xpert CARBA-R Assay enables qualitative rapid detection of five beta-lactamase gene sequences associated with carbapenem-non susceptibility in Gram-negative bacteria. Feasibility parameters (specimen processing and assay run time, ease of use) and percent agreement between the tests were calculated using JMP Pro11 (SAS Corp, Cary, NC, USA). Results: Mean age was 62 +/- 15 years; 108 (54 %) were male. Both tests were successfully performed in all patients. The POC test was rated by endoscopy nurses as easy/very easy to conduct in 193 patients (97 %); median assay run time and median time for specimen collection and processing were 55 minutes (interquartile range IQR: 53 - 55 minutes) and 3 minutes (IQR: 3 - 6 minutes), respectively. In 200/201 (99.5 %) tests, there was agreement between the POC and reference PCR. Conclusions: The more comprehensive POC CRO testing of patients in the endoscopy suite is feasible and results are available in < 1 hour. This strategy may enable rapid risk stratification of duodenoscope exposure to CRO and potentially improve operational efficiency and decrease costs. PMID- 29340301 TI - Stable organic thin-film transistors. AB - Organic thin-film transistors (OTFTs) can be fabricated at moderate temperatures and through cost-effective solution-based processes on a wide range of low-cost flexible and deformable substrates. Although the charge mobility of state-of-the art OTFTs is superior to that of amorphous silicon and approaches that of amorphous oxide thin-film transistors (TFTs), their operational stability generally remains inferior and a point of concern for their commercial deployment. We report on an exhaustive characterization of OTFTs with an ultrathin bilayer gate dielectric comprising the amorphous fluoropolymer CYTOP and an Al2O3:HfO2 nanolaminate. Threshold voltage shifts measured at room temperature over time periods up to 5.9 * 105 s do not vary monotonically and remain below 0.2 V in microcrystalline OTFTs (MUc-OTFTs) with field-effect carrier mobility values up to 1.6 cm2 V-1 s-1. Modeling of these shifts as a function of time with a double stretched-exponential (DSE) function suggests that two compensating aging mechanisms are at play and responsible for this high stability. The measured threshold voltage shifts at temperatures up to 75 degrees C represent at least a one-order-of-magnitude improvement in the operational stability over previous reports, bringing OTFT technologies to a performance level comparable to that reported in the scientific literature for other commercial TFTs technologies. PMID- 29340300 TI - Shared Mechanisms in the Estimation of Self-Generated Actions and the Prediction of Other's Actions by Humans. AB - The question of how humans predict outcomes of observed motor actions by others is a fundamental problem in cognitive and social neuroscience. Previous theoretical studies have suggested that the brain uses parts of the forward model (used to estimate sensory outcomes of self-generated actions) to predict outcomes of observed actions. However, this hypothesis has remained controversial due to the lack of direct experimental evidence. To address this issue, we analyzed the behavior of darts experts in an understanding learning paradigm and utilized computational modeling to examine how outcome prediction of observed actions affected the participants' ability to estimate their own actions. We recruited darts experts because sports experts are known to have an accurate outcome estimation of their own actions as well as prediction of actions observed in others. We first show that learning to predict the outcomes of observed dart throws deteriorates an expert's abilities to both produce his own darts actions and estimate the outcome of his own throws (or self-estimation). Next, we introduce a state-space model to explain the trial-by-trial changes in the darts performance and self-estimation through our experiment. The model-based analysis reveals that the change in an expert's self-estimation is explained only by considering a change in the individual's forward model, showing that an improvement in an expert's ability to predict outcomes of observed actions affects the individual's forward model. These results suggest that parts of the same forward model are utilized in humans to both estimate outcomes of self generated actions and predict outcomes of observed actions. PMID- 29340302 TI - Localized concentration reversal of lithium during intercalation into nanoparticles. AB - Nanoparticulate electrodes, such as Li x FePO4, have unique advantages over their microparticulate counterparts for the applications in Li-ion batteries because of the shortened diffusion path and access to nonequilibrium routes for fast Li incorporation, thus radically boosting power density of the electrodes. However, how Li intercalation occurs locally in a single nanoparticle of such materials remains unresolved because real-time observation at such a fine scale is still lacking. We report visualization of local Li intercalation via solid-solution transformation in individual Li x FePO4 nanoparticles, enabled by probing sub angstrom changes in the lattice spacing in situ. The real-time observation reveals inhomogeneous intercalation, accompanied with an unexpected reversal of Li concentration at the nanometer scale. The origin of the reversal phenomenon is elucidated through phase-field simulations, and it is attributed to the presence of structurally different regions that have distinct chemical potential functions. The findings from this study provide a new perspective on the local intercalation dynamics in battery electrodes. PMID- 29340303 TI - Highly mobile charge-transfer excitons in two-dimensional WS2/tetracene heterostructures. AB - Charge-transfer (CT) excitons at heterointerfaces play a critical role in light to electricity conversion using organic and nanostructured materials. However, how CT excitons migrate at these interfaces is poorly understood. We investigate the formation and transport of CT excitons in two-dimensional WS2/tetracene van der Waals heterostructures. Electron and hole transfer occurs on the time scale of a few picoseconds, and emission of interlayer CT excitons with a binding energy of ~0.3 eV has been observed. Transport of the CT excitons is directly measured by transient absorption microscopy, revealing coexistence of delocalized and localized states. Trapping-detrapping dynamics between the delocalized and localized states leads to stretched-exponential photoluminescence decay with an average lifetime of ~2 ns. The delocalized CT excitons are remarkably mobile with a diffusion constant of ~1 cm2 s-1. These highly mobile CT excitons could have important implications in achieving efficient charge separation. PMID- 29340304 TI - Pressure-induced shear and interlayer expansion in Ti3C2 MXene in the presence of water. AB - Pseudo-negative compressibility in layered materials is a phenomenon typically limited to in situ high-pressure experiments in some clay minerals and carbon based materials. We show that the MXene Ti3C2T x expands along its crystallographic c direction when compressed in the presence of H2O. This expansive effect occurs when a mixture of powders and excess water is quasi hydrostatically compressed in a diamond anvil cell; it also occurs to a much larger extent when powders are pressed uniaxially into discs and, notably, persists after pressure is released. We attribute the expansion to the insertion of H2O molecules and have identified shear-induced slipping of the nanosheets comprising multilayered MXene particles as a possible cause of this behavior in the latter case. This both has implications for the processing of MXenes and contributes to the field of materials with pseudo-negative compressibility by adding a new member for further investigation. PMID- 29340305 TI - Successful Drug-eluting Stent Implantation in a Male Patient with Dextrocardia: A Case Report. AB - Situs inversus with dextrocardia is a rare condition, with complete transposition of all the body organs, including the heart. Percutaneous coronary intervention (PCI) in these patients is technically difficult because of the mirror image of organs. Here, we describe a 56-year-old man with coronary heart disease with known situs inversus with dextrocardia and coronary percutaneous intervention was performed for stenosis in the right coronary artery. A drug eluting stent was implanted at this site successfully. This case suggested that the interventional management of such patients follows the same general rules as for non dextrocardia patients, but the manipulation of the catheter and projection position choices need to be taken into consideration to obtain optimal benefits for the patient. PMID- 29340306 TI - Iron Chelation Resulting in Renal Phosphate Wasting. PMID- 29340307 TI - A Patient With CKD Develops Cholestatic Liver Injury During a Clinical Trial. PMID- 29340308 TI - Noninfectious Peritoneal Dialysis Exit Site Rash-An Unusual Case Report and Review of the Literature. PMID- 29340309 TI - Strongyloides stercoralis-Associated Tip Variant Focal Segmental Glomerulosclerosis. PMID- 29340310 TI - Disseminated Adenovirus Nephritis After Kidney Transplantation. PMID- 29340311 TI - Hyponatremia and the Brain. AB - Hyponatremia is defined by low serum sodium concentration and is the most common electrolyte disorder encountered in clinical practice. Serum sodium is the main determinant of plasma osmolality, which, in turn, affects cell volume. In the presence of low extracellular osmolality, cells will swell if the adaptation mechanisms involved in the cell volume maintenance are inadequate. The most dramatic effects of hyponatremia on the brain are seen when serum sodium concentration decreases in a short period, allowing little or no adaptation. The brain is constrained inside a nonextensible envelope; thus, brain swelling carries a significant morbidity because of the compression of brain parenchyma over the rigid skull. Serum sodium concentration is an important determinant of several biological pathways in the nervous system, and recent studies have suggested that hyponatremia carries a significant risk of neurological impairment even in the absence of brain edema. The brain can also be affected by the treatment of hyponatremia, which, if not undertaken cautiously, could lead to osmotic demyelination syndrome, a rare demyelinating brain disorder that occurs after rapid correction of severe hyponatremia. This review summarizes the pathophysiology of brain complications of hyponatremia and its treatment. PMID- 29340312 TI - CKD Screening and Surveillance in Australia: Past, Present, and Future. AB - Chronic kidney disease (CKD) was largely a hidden health problem until the publication of an internationally agreed approach to its identification, monitoring, and treatment. The 2002 National Kidney Foundation CKD classification and the subsequent 2006 Kidney Disease Improving Global Outcomes (KDIGO) recommendations are powerful tools for translating thinking about CKD into clinical practice. These guidelines were strongly endorsed by the international community, including Australia, and were incorporated into CKD practice guidelines. In the past, CKD research studies in Australia focused on screening the general population, and more specifically, individuals at risk for CKD. Information from these studies led to the recognition that the CKD burden in Australia is a public health problem and contributed to the development of national health policies and priorities. At present, apart from the Australia and New Zealand Dialysis and Transplant Registry (ANZDATA) that reports on CKD patients undergoing renal replacement therapy (RRT), long-term surveillance to describe the natural history of the CKD population not on RRT has only recently started. Entities such as CKD. Queensland and the Western Australian Nephrology Database are able to fill the gap and provide opportunities for collaborative research of CKD in Australia. Establishment of a National Health and Medical Research Centre-funded CKD Centre of Excellence in 2015 and the Better Evidence and Translation-Chronic Kidney Disease in 2016 are likely to change the future of CKD surveillance and research in Australia. PMID- 29340313 TI - Treatment of Severe Hyperkalemia: Confronting 4 Fallacies. AB - Severe hyperkalemia is a medical emergency that can cause lethal arrhythmias. Successful management requires monitoring of the electrocardiogram and serum potassium concentrations, the prompt institution of therapies that work both synergistically and sequentially, and timely repeat dosing as necessary. It is of concern then that, based on questions about effectiveness and safety, many physicians no longer use 3 key modalities in the treatment of severe hyperkalemia: sodium bicarbonate, sodium polystyrene sulfonate (Kayexalate [Concordia Pharmaceuticals Inc., Oakville, ON, Canada], SPS [CMP Pharma, Farmville, NC]), and hemodialysis with low potassium dialysate. After reviewing older reports and newer information, I believe that these exclusions are ill advised. In this article, I briefly discuss the treatment of severe hyperkalemia and detail why these modalities are safe and effective and merit inclusion in the treatment of severe hyperkalemia. PMID- 29340314 TI - DNAJB9 Is a Specific Immunohistochemical Marker for Fibrillary Glomerulonephritis. AB - Introduction: Fibrillary glomerulonephritis (FGN) is a rare disease with unknown pathogenesis and a poor prognosis. Until now, the diagnosis of this disease has required demonstration of glomerular deposition of randomly oriented fibrils by electron microscopy that are Congo red negative and stain with antisera to Igs. We recently discovered a novel proteomic tissue biomarker for FGN, namely, DNAJB9. Methods: In this work, we developed DNAJB9 immunohistochemistry and tested its sensitivity and specificity for the diagnosis of FGN. This testing was performed on renal biopsy samples from patients with FGN (n = 84), amyloidosis (n = 21), a wide variety of non-FGN glomerular diseases (n = 98), and healthy subjects (n = 11). We also performed immunoelectron microscopy to determine whether DNAJB9 is localized to FGN fibrils. Results: Strong, homogeneous, smudgy DNAJB9 staining of glomerular deposits was seen in all but 2 cases of FGN. The 2 cases that did not stain for DNAJB9 were unique, as they had glomerular staining for IgG only (without kappa or lambda) on immunofluorescence. DNAJB9 staining was not observed in cases of amyloidosis, in healthy subjects, or in non-FGN glomerular diseases (with the exception of very focal staining in 1 case of smoking-related glomerulopathy), indicating 98% sensitivity and > 99% specificity. Immunoelectron microscopy showed localization of DNAJB9 to FGN fibrils but not to amyloid fibrils or immunotactoid glomerulopathy microtubules. Conclusion: DNAJB9 immunohistochemistry is sensitive and specific for FGN. Incorporation of this novel immunohistochemical biomarker into clinical practice will now allow more rapid and accurate diagnosis of this disease. PMID- 29340315 TI - Contrast-Induced Nephropathy and Oxygen Pretreatment in Patients With Impaired Renal Function. AB - Introduction: Contrast-induced nephropathy is a complication following coronary angiography and percutaneous coronary intervention. Because contrast-induced nephropathy is a predictor of long-term mortality in patients with ischemic heart disease undergoing percutaneous coronary intervention, preventive strategies are required. We assessed the effects of periprocedural oxygenation on contrast induced nephropathy among patients with pre-existing renal dysfunction. Methods: A total of 200 consecutive patients with impaired renal function (estimated glomerular filtration < 60 ml/min per 1.73 m2) undergoing elective cardiovascular angiography were randomly assigned to an oxygenation treatment (n = 100) or control group (n = 100). In oxygenation treatment, pure oxygen (2 L/min) was administered for 10 minutes before exposure to contrast medium. The primary endpoint was the incidence of contrast-induced nephropathy, defined as a >= 25% increase in serum creatinine levels from baseline within 48 hours of exposure. Results: In the oxygenation treatment group, partial pressure of arterial oxygen was higher (135 +/- 25 mm Hg vs. 84 +/- 10 mm Hg, P < 0.001); contrast-induced nephropathy incidence was lower (1% vs. 8%, odds ratio [OR] = 0.12, 95% confidence interval [CI] = 0.01-0.95, P = 0.02); and partial pressure of arterial carbon dioxide and bicarbonate base lactate levels were similar compared with those in the control group. Upon univariate analysis, excess and absence of oxygenation treatment (OR = 9.18, CI = 1.13-74.86, P = 0.03) and anemia (OR = 4.30, CI = 1.04-17.78, P = 0.04) were shown to be associated with contrast induced nephropathy incidence. Conclusion: Oxygenation, a simple, nonpharmacological strategy, may be beneficial when using contrast media in patients with impaired renal function from noninvasive angiography to emergency catheterization. PMID- 29340316 TI - NPT-IIb Inhibition Does Not Improve Hyperphosphatemia in CKD. AB - Introduction: Serum phosphate levels are insufficiently controlled in many patients with end-stage renal disease (ESRD), and novel therapeutic strategies are needed. Blocking intestinal phosphate absorption mediated by sodium-dependent phosphate co-transporter type 2b (NPT-IIb) holds promise; thus, we evaluated the efficacy, safety, tolerability, and pharmacokinetics of the novel and specific small molecule NPT-IIb inhibitor ASP3325 for the first time in humans. Methods: We conducted a randomized, double-blind, placebo-controlled, phase 1a single (n = 88) and multiple (n = 36) ascending dose study in healthy subjects, and a randomized, open-label, uncontrolled, phase 1b study in hyperphosphatemic ESRD patients on hemodialysis (single oral dose, n = 5; multiple oral doses, n = 17). Primary efficacy measures were urinary phosphate and fecal phosphorous excretion (healthy subjects) and serum phosphate level (ESRD patients). Results: No time- or dose-dependent changes in urinary phosphate or fecal phosphorous excretion were observed following single/multiple ASP3325 doses for 7 days in healthy subjects. In ESRD patients, ASP3325 administered 3 times daily for 2 weeks before or after a meal did not reduce serum phosphate levels. ASP3325 was safe and well tolerated in both populations. Conclusion: NPT-IIb inhibition with ASP3325 was not effective in reducing serum phosphate levels in ESRD patients. The relevance of NPT-IIb in humans and feasibility of oral NPT-IIb inhibitors for treatment of hyperphosphatemia in ESRD remain uncertain. PMID- 29340318 TI - APOL1 Risk Variants Independently Associated With Early Cardiovascular Disease Death. AB - Introduction: The relationship of APOL1 renal risk variants to cardiovascular disease (CVD) is controversial and was the subject of this investigation. Methods: Age, cause of death, and nephrosclerosis (the latter defined by glomerulosclerosis) were analyzed in the autopsies of 162 African Americans and 136 whites genotyped for APOL1 risk alleles. Results: Sudden deaths represented >75% of CVD autopsies for both races and all-risk genotypes. The average ages of CVD deaths for African Americans with 1 and 2 APOL1 risk alleles were, respectively, 7.0 years (P = 0.02) and 12.2 years (P < 0.01) younger than African Americans with 0 risk alleles and 8.7 years (P = 0.01) and 13.9 years (P = 0.01) younger than whites. Age differences were not significant between African Americans and whites with 0 risk alleles (P = 0.61). The younger CVD deaths of African Americans were associated with less severe glomerulosclerosis with 2 (P = 0.01), although not 1 (P = 0.09), compared with 0 APOL1 risk alleles. Cardiomyopathy was found in 23% of African Americans with 1 and 2 risk alleles and significantly contributed to the lower age (P = 0.01). For non-CVD deaths, age differences were not seen by race (P = 0.28) or among African Americans by risk allele status (P = 0.38). Conclusion: Carriage of 1 or 2 APOL1 risk alleles in African Americans was associated with earlier age deaths due to coronary artery disease and cardiomyopathy. For 2 risk alleles, the early age was independent of nephrosclerosis. PMID- 29340317 TI - Intradialytic Cognitive and Exercise Training May Preserve Cognitive Function. AB - Introduction: Cognitive decline is common and increases mortality risk in hemodialysis patients. Intradialytic interventions like cognitive training (CT) and exercise training (ET) may preserve cognitive function. Methods: We conducted a pilot randomized controlled trial of 20 hemodialysis patients to study the impact of 3 months of intradialytic CT (tablet-based brain games) (n = 7), ET (foot peddlers) (n = 6), or standard of care (SC) (n = 7) on cognitive function. Global cognitive function was measured by the Modified Mini Mental Status Exam (3MS), psychomotor speed was measured by Trail Making Tests A and B (TMTA and TMTB), and executive function was assessed by subtracting (TMTB - TMTA). Lower 3MS scores and slower TMTA and TMTB times reflected worse cognitive function. P values for differences were generated using analysis of variance, and 95% confidence intervals (CIs) and P values were generated from linear regression. Results: Patients with SC experienced a decrease in psychomotor speed and executive function by 3 months (TMTA: 15 seconds; P = 0.055; TMTB: 47.4 seconds; P = 0.006; TMTB - TMTA; 31.7 seconds; P = 0.052); this decline was not seen among those with CT or ET (all P > 0.05). Compared with SC, the difference in the mean change in 3MS score was -3.29 points (95% CI: -11.70 to 5.12; P = 0.42) for CT and 4.48 points (95% CI: -4.27 to 13.22; P = 0.30) for ET. Compared with SC, the difference in mean change for TMTA was -15.13 seconds (95% CI: -37.64 to 7.39; P = 0.17) for CT and -17.48 seconds (95% CI: -41.18 to 6.22; P = 0.14) for ET, for TMTB, the difference was -46.72 seconds (95% CI: -91.12 to -2.31; P = 0.04) for CT and -56.21 seconds (95% CI: -105.86 to -6.56; P = 0.03) for ET, and for TMTB - TMTA, the difference was -30.88 seconds (95% CI: -76.05 to 14.28; P = 0.16) for CT and -34.93 seconds (95% CI: -85.43 to 15.56; P = 0.16) for ET. Conclusion: Preliminary findings of our pilot study suggested that cognitive decline in psychomotor speed and executive function is possibly prevented by intradialytic CT and ET. These preliminary pilot findings should be replicated. PMID- 29340319 TI - Life Expectancy for Patients From the Southeastern United States With IgA Nephropathy. AB - Introduction: Although end-stage renal disease (ESRD) and surrogate markers for renal dysfunction are frequently used as outcome markers for IgA nephropathy, the clinical course after reaching ESRD is not well documented. This study examined outcomes of progression to ESRD and age at death in a cohort of adults with IgA nephropathy with a long duration of follow-up. Methods: Patient and kidney survival of 251 adult patients with IgA nephropathy from the southeastern United States diagnosed between January 1, 1976 and December 31, 2005 were analyzed. Results: Median age at diagnosis was 36.9 years. Most patients were men (69%) and Caucasian (95%). Only 46% had an estimated glomerular filtration rate >60 ml/min per 1.73 m2 at diagnosis. Mean follow-up time from time of diagnostic biopsy to death or end of study was 19.3 years. Of 251 patients, 132 (53%) progressed to ESRD and 97 (39%) died. Life expectancy was reduced by 10.1 years, with a median observed age of death at 65.7 years and a median expected age at death of 75.8 years. Eighty-three percent of the deaths occurred after progression to ESRD. Conclusion: Life expectancy is substantially reduced for patients diagnosed with IgA nephropathy in the southeastern United States. PMID- 29340320 TI - Association of a Low-Protein Diet With Slower Progression of CKD. AB - Introduction: Reducing protein intake is recommended for slowing chronic kidney disease (CKD) progression, but assessment of its true effectiveness is sparse. Methods: Using the Maroni formula, we assessed dietary protein intake (DPI) from 24-hour urinary urea excretion in 1594 patients (67% men and 33% women) with CKD, 784 of whom also had 7-day food records. Cause-specific hazard ratios (HRs) and 95% confidence intervals for the competing risks of DPI-associated end-stage renal disease (ESRD) or death were estimated in 1412 patients with baseline glomerular filtration rate >=15 ml/min per 1.73 m2, measured by 51Cr-EDTA renal clearance (mGFR). Results: Overall, mean DPI estimated from urea excretion was 1.09 +/- 0.30 g/kg of body weight per day (range = 0.34-2.76); 20% of patients had values > 1.3 g/kg per day, and 1.9% had values < 0.6 g/kg per day. Urea excretion and food records produced similar estimates of mean DPI. The lower the mGFR, the lower the mean DPI. Over a median follow-up of 5.6 years, there were 319 ESRD events and 189 pre-ESRD deaths. After adjusting for relevant covariates, each 0.1 g/kg daily higher baseline urea excretion-based DPI or food record-based DPI was associated with an HR for ESRD of 1.05 (95% confidence interval 1.01 1.10) or 1.09 (95% confidence interval 1.04-1.14), respectively. HRs were stronger in patients with baseline mGFR < 30 ml/min per 1.73 m2. There was no association with mortality. The mean age of the patients was 59 +/- 15 years, and mean body mass index was 26.6 +/- 5.2 kg/m2. Conclusion: In this prospective observational study, the lower the baseline DPI, the slower the progression toward ESRD. Most importantly, the absence of threshold for the relation between DPI and ESRD risk indicates that there is no optimal DPI in the range observed in this cohort. PMID- 29340321 TI - Randomized Clinical Trial Design to Assess Abatacept in Resistant Nephrotic Syndrome. AB - Introduction: Treatment-resistant nephrotic syndrome is a rare form of glomerular disease that occurs in children and adults. No Food and Drug Administration approved treatments consistently achieve remission of proteinuria and preservation of kidney function. CD80 (B7-1) can be expressed on injured podocytes, and administration of abatacept (modified CTLA4-Ig based on a natural ligand to CD80) has been associated with sustained normalization of urinary protein excretion and maintenance of glomerular filtration rate in experimental and clinical settings. Methods: In this report, we describe the rationale for and design of a randomized, placebo-controlled, clinical trial of abatacept in patients with treatment-resistant nephrotic syndrome caused by focal segmental glomerulosclerosis or minimal change disease. The design is a hybrid of a parallel-group and crossover design (switchover) with the primary objectives assessed in the first period of the study and the secondary objectives assessed using data from both periods. All participants will receive the active agent in 1 of the periods. The duration of treatment will be 4 months per period. Results: The primary outcome will be improvement in nephrotic-range proteinuria to subnephrotic range, that is, reduction from baseline to 4 months in urine protein:creatinine ratio >= 50% and to a level < 3. The projected sample size is 90 patients, which has 80% power to detect a treatment difference of 28%. Conclusion: This study advances efforts to validate CD80 as a therapeutic target for treatment-resistant nephrotic syndrome, and implements a precision medicine based approach to this serious kidney condition in which the selection of a therapeutic agent is guided by the underlying disease mechanism operating in individual patients. PMID- 29340322 TI - Paricalcitol Versus Calcifediol for Treating Hyperparathyroidism in Kidney Transplant Recipients. AB - Introduction: Secondary hyperparathyroidism (SHPT) and vitamin D deficiency are common at kidney transplantation and are associated with some early and late complications. This study was designed to evaluate whether paricalcitol was more effective than nutritional vitamin D for controlling SHPT in de novo kidney allograft recipients. Methods: This was a 6-month, investigator-initiated, multicenter, open-label, randomized clinical trial. Patients with pretransplantation iPTH between 250 and 600 pg/ml and calcium <10 mg/dl were randomized to paricalcitol (PAR) or calcifediol (CAL). The intention-to-treat population (PAR: n = 46; CAL: n = 47) was used for the analysis. The primary endpoint was the percentage of patients with serum iPTH >110 pg/ml at 6 months. Secondary endpoints were bone mineral metabolism, renal function, and allograft protocol biopsies. Results: The primary outcome occurred in 19.6% of patients in the PAR group and 36.2% of patients in the CAL group (P = 0.07). However, there was a higher percentage of patients with iPTH <70 pg/ml in the PAR group than in the CAL group (63.4% vs. 37.2%; P = 0.03). No differences were observed in bone turnover biomarkers and bone mineral density. The estimated glomerular filtration rate was significantly higher in the CAL group than in the PAR group without differences in albuminuria. In protocol biopsies, interstitial fibrosis and tubular atrophy tended to be higher in the PAR group than in the CAL group (48% vs. 23.8%; P = 0.09). Both medications were well tolerated. Conclusion: Both PAR and CAL reduced iPTH, but PAR was associated with a higher proportion of patients with iPTH <70 pg/ml. These results do not support the use of PAR to treat posttransplantation hyperparathyroidism. PMID- 29340323 TI - Clinical and Pathological Significance of Autoantibodies to Erythropoietin Receptor in Type 2 Diabetic Patients With CKD. AB - Introduction: We examined the impact of autoantibodies on the erythropoietin receptor (EPOR) in type 2 diabetic patients with chronic kidney disease (CKD). Methods: A total of 112 Japanese patients with type 2 diabetes who had CKD were enrolled in this study and followed for a mean of 45 months. Sera from these patients were screened for anti-EPOR antibodies using enzyme-linked immunosorbent assays. Results: Anti-EPOR antibodies were detected in 26 patients (23%). Anti EPOR antibodies were associated with low hemoglobin concentrations and decreased renal function. In patients with biopsy-proven diabetic nephropathy, anti-EPOR antibodies were associated with increased levels of interstitial inflammation. A decrease in renal function was observed more frequently in patients with antibodies than in those without antibodies, and the presence of the antibodies together with well-known clinical parameters, including proteinuria and low glomerular filtration rate, was a significant risk factor for end-stage renal disease. In human tubular epithelial HK-2 cells, IgG fractions containing anti EPOR antibodies upregulated the expression of monocyte chemoattractant protein-1 mRNA under a high concentration of glucose. Conclusion: Anti-EPOR antibodies might be involved in the progression of renal lesions and in the impaired erythropoiesis in type 2 diabetic patients with CKD. Furthermore, the presence of anti-EPOR antibodies may be an additional predictor for end-stage renal disease in type 2 diabetes. PMID- 29340324 TI - Temporal Association Between PLA2R Antibodies and Clinical Outcomes in Primary Membranous Nephropathy. AB - Introduction: Autoantibodies to M-type phospholipase A2 receptor (aPLA2R) are seen in two-thirds of patients with primary membranous nephropathy (PMN) and are associated with disease activity. However, the precise temporal dynamics between the presence and amount of aPLA2R in circulation, as well as the clinical activity, are not known. We evaluated the temporal association between disease activity and serum aPLA2R during and after treatment in PMN. Methods: The study included all patients with PMN and elevated aPLA2R who were started on immunosuppressive therapy for persistent nephrotic syndrome at a single center between December 2014 and December 2015. Serum samples were tested for aPLA2R at baseline and at monthly intervals for 6 months. Clinical details were collected monthly for 9 months. Serological remission was defined as negative aPLA2R in 2 consecutive samples. Clinical remission was defined by standard criteria. Results: A total of 30 patients with PMN were studied. Of these, 28 (93%) had elevated levels at baseline, whereas 2 (7%) became positive after 1 month. The mean age was 33.2 +/- 1 (range, 13-52) years. Median baseline aPLA2R titer was 163.41 (range, 70-291.01) RU/ml. A total of 24 patients (80%) achieved serological remission by 6 months. Among all the serological responders, 54% had achieved negative aPLA2R by the end of the first month. Clinical remission was observed in 20 patients (67%). Serological and clinical remission were noted at 2.7 +/- 1.71 and 5.05 +/- 2.64 months, respectively. Conclusion: In patients with aPLA2R-associated PMN, reduction in circulating aPLA2R precedes clinical remission. Persistence of aPLA2R at the end of therapy is associated with clinical resistance. PMID- 29340325 TI - End-Stage Kidney Disease From Scleroderma in the United States, 1996 to 2012. AB - Introduction: Although the management of scleroderma continues to evolve, it is unknown whether the burden of end-stage kidney disease (ESKD) treated with maintenance renal replacement therapy from SD has changed. Methods: We examined United States Renal Data System data (n = 1,677,303) for the years 1996 to 2012 to quantify the incidence and outcomes of ESKD from scleroderma treated with renal replacement therapy (n = 2398). Outcomes assessed through demography matched scleroderma-positive/scleroderma-negative comparisons included recovery of kidney function, mortality, listing for transplant, renal transplantations, and graft failure. Results: Overall ESKD rates from scleroderma were 0.5 per million per year. Adjusted incidence ratios fell over time, to 0.42 in 2012 (vs. 1996, 95% confidence interval [CI] = 0.32-0.54, P < 0.001). Adjusted incidence ratios for ESKD from scleroderma fell over time in both sexes, all age, race, and ethnicity categories except age < 20 years and Asian race, and in all regions of the United States. After initiating renal replacement therapy, patients with scleroderma had a greater likelihood of recovery of kidney function (hazards ratio [HR] = 2.67, 95% CI = 1.90-3.76, P < 0.001) and death (HR = 1.44, 95% CI = 1.34-1.54, P < 0.001) and a lower likelihood of transplantation (HR = 0.51, 95% CI = 0.44-0.59, P < 0.001) than demography-matched patients without scleroderma. Conclusion: The incidence of ESKD from scleroderma appears to have declined in the United States since 1996. ESKD from scleroderma is associated with an enhanced likelihood of recovery of kidney function and death, a reduced likelihood of transplantation, and similar outcomes after transplantation. PMID- 29340326 TI - mTORC1 Inhibition Is an Effective Treatment for Sporadic Renal Angiomyolipoma. AB - Introduction: Renal angiomyolipoma (AML) is the most common benign renal tumor. Despite a generally benign histology, AML can result in significant morbidity, from intra-abdominal hemorrhage and reduction in kidney function. While classically associated with the autosomal dominant disorder tuberous sclerosis complex (TSC) or with pulmonary lymphangioleiomyomatosis, most AMLs are sporadic. Mammalian target of rapamycin complex 1 (mTORC1) inhibitors (e.g., sirolimus) have been found to be effective in treating TSC- or lymphangioleiomyomatosis associated AML, but to date it is unknown whether this strategy is effective for sporadic AML. Methods: We stained tumor specimens of sporadic AML patients for pS6 to assess for mTORC1 activation. Results: We detected strong activation of the mTORC1 pathway, similar to TSC-associated AML. Consequently, we showed that in vitro treatment with sirolimus results in significant growth inhibition of the human sporadic AML cell line SV7Tert, similar to the effect seen when the same treatment is applied to the human TSC-associated AML cell line UMBSV-tel. To further investigate the potential of mTORC1 inhibition for treating sporadic AML and assess whether the in vitro results are clinically relevant, we identified a patient with sporadic, bilateral AMLs, showing continued tumor growth following a partial nephrectomy. Using immunostaining, we detected strong mTORC1 activation in the patient's AML tissue. Accordingly, upon treatment with sirolimus, we noted significant reduction in the patient's tumor volume and resolution of hydronephrosis, without any significant side effects. Conclusion: We propose mTORC1 inhibition as an effective treatment option for patients with sporadic AML, which represents the vast majority of patients with this tumor. PMID- 29340327 TI - Trimethoprim+Sulfamethoxazole Reduces Rates of Melioidosis in High-Risk Hemodialysis Patients. AB - Introduction: Melioidosis causes sepsis and death in the Top End of Northern Australia during the monsoonal wet season. Dialysis-dependent adults suffer higher melioidosis rates compared to low rates among renal transplant patients who routinely receive trimethoprim+sulfamethoxazole prophylaxis. Methods: We performed a prospective interventional study to determine the efficacy and safety of daily trimethoprim+sulfamethoxazole prophylaxis in hemodialysis patients during the wet season, from 1 November 2014 to 30 April 2015. Hemodialysis (for >= 3 months) patients >= 18 years of age were offered treatment. A total of 269 patients on hemodialysis were eligible. Eight of the 269 patients (3%) were excluded from the analysis for being on melioidosis treatment. In all, 169 of 261 patients (64.8%) received the prophylaxis, and 92 of 261 patients (35.2%) did not, because of allergy history (n = 10), remoteness and logistical reasons (n = 60), poor dialysis attendance (n = 11), and refusal (n = 11). We monitored for clinical side effects 3 times weekly and neutropenia, thrombocytopenia, and liver function monthly throughout treatment and for 2 months posttreatment. Results: In all, 169 of 261 patients (64.8%) received the prophylaxis. There was no age (years) difference by group (prophylaxis vs. nonprophylaxis, 54.7 [11.3] vs. 54.3 [11.2] [P = 0.751]). Sixteen of 261 patients (6%) had melioidosis. The event frequency was 0% (0/169, prophylaxis, vs. 17.4% [16/92, nonprophylaxis], P < 0.001). Higher thrombocytopenia and neutropenia rates were noted in the prophylaxis group. These did not warrant treatment stoppage. There was no difference in liver function. Three patients (1.8%) withdrew from the treatment because of side effects. Conclusion: Daily dosing was effective and safe. Posthemodialysis dosing in the subsequent seasons was effective and safer. We recommend this approach in melioidosis-prevalent regions. PMID- 29340328 TI - Nephrin Loss Can Be Used to Predict Remission and Long-term Renal Outcome in Patients With Minimal Change Disease. AB - Introduction: Minimal change disease is a common cause of nephrotic syndrome. In general, patients with minimal change disease respond to corticosteroids and have excellent long-term renal survival. However, some patients have less favorable outcome. These patients are often thought to have progressed to focal segmental glomerulosclerosis. We previously reported that a segmental loss of podocyte markers is present before the development of focal segmental glomerulosclerosis in a rat model. Here, we investigated whether loss of podocyte marker nephrin can serve as a biomarker for predicting poor outcome in patients with minimal change disease. Methods: We obtained 47 kidney biopsy samples from patients diagnosed with minimal change disease and stained sections with periodic acid-Schiff and for nephrin. Nephrin loss was scored by 2 independent researchers who were blinded to clinical outcome. Clinical data were collected retrospectively, and nephrin loss was correlated with clinical follow-up data. Results: Nephrin loss was present in 34% of the biopsy samples. During follow-up, patients with nephrin loss achieved remission less frequently (61%) compared to patients without (96%) (P = 0.002). Moreover, 5-year eGFR was lower in the patients with renal nephrin loss. The risk of eGFR decreasing to < 60 ml/min per 1.73m2 increased with each percentage of glomeruli with nephrin loss (hazard ratio = 1.044, 95% confidence interval = 1.02-1.07). Conclusion: These results indicate that nephrin loss in patients with minimal change disease can help predict both remission and long term renal outcome. PMID- 29340329 TI - A Salivary Urea Nitrogen Dipstick to Detect Obstetric-Related Acute Kidney Disease in Malawi. AB - Introduction: Obstetric-related acute kidney injury (AKI) is associated with adverse outcomes for mother and fetus, particularly in low-income countries. However, laboratory-independent tools to facilitate diagnosis are lacking. We assessed the diagnostic performance of a salivary urea nitrogen (SUN) dipstick to detect obstetric-related acute kidney disease in Malawi. Methods: Women at high risk for AKI admitted to an obstetric unit in Blantyre, Malawi, were recruited between 21 September and 11 December 2015. Patients underwent serum creatinine (SCr) testing alongside measurement of SUN using a dipstick on admission, and every 48 hours thereafter if evidence of kidney disease was found. Results: A total of 301 patients were included (mean age 25.9 years, 11% HIV positive). Of the patients, 23 (7.6%) had AKI, stage 1 in 47.8%, most commonly due to preeclampsia/eclampsia. Mean presenting SCr values were 108.8 +/- 21.8 MUmol/l (1.23 +/- 0.25 mg/dl), 118 +/- 34.45 MUmol/l (1.33 +/- 0.39 mg/dl), and 136.1 +/- 30.4 MUmol/l (1.54 +/- 0.34 mg/dl) in AKI stages 1 to 3 respectively. SUN > 14 mg/dl had a sensitivity of 12.82% and a specificity of 97.33% to detect acute kidney disease; the area under the receiver operating characteristic curve was 0.551. In patients with normal SUN on admission, perinatal mortality was 11.8%, and was 25.0% if SUN was > 14 mg/dl (P = 0.18). Conclusion: The SUN dipstick was specific but insensitive when used to diagnose obstetric-related AKI. Limited biochemical derangement and low salivary urea concentrations due to physiological changes in pregnancy, as opposed to a technical limitation of the dipstick itself, are the likely reason for the lack of sensitivity in this study. PMID- 29340330 TI - Efficacy and Safety of Sucroferric Oxyhydroxide and Calcium Carbonate in Hemodialysis Patients. AB - Introduction: In this phase III, open-label, single-arm, multi-center 12-week study, we evaluated the efficacy and safety of combination therapy with sucroferric oxyhydroxide (PA21) and calcium carbonate for hemodialysis patients with hyperphosphatemia. Methods: We enrolled 35 subjects aged >= 20 years with end-stage kidney disease and serum phosphorus 3.5-6.0 mg/dl who were undergoing hemodialysis 3 times weekly and taking calcium carbonate and sevelamer hydrochloride. Patients switched from sevelamer hydrochloride and calcium carbonate to sucroferric oxyhydroxide and calcium carbonate. Sucroferric oxyhydroxide was orally administered 3 times daily within 750 mg/d (250 mg per dose) to 3000 mg/d (1000 mg per dose), immediately before every meal, for 12 weeks. Calcium carbonate was orally administered 3 times daily after every meal. Outcomes were serum phosphorus concentration, safety, and satisfaction with bowel movements. Results: Mean (SD) serum phosphorus concentrations were 5.01 (0.63) mg/dl at week 0 and 4.89 (1.14) mg/dl at the end of treatment, after patients switched from sevelamer hydrochloride to sucroferric oxyhydroxide. The incidence of adverse drug reactions was 31.4% (11/35), with diarrhea being the most frequent (31.4%). More sucroferric oxyhydroxide-treated patients were satisfied with their bowel movements. More patients with constipation, as well as those who experienced diarrhea, were satisfied with their bowel movements at the end of the study. Conclusion: Combined administration of sucroferric oxyhydroxide and calcium carbonate at low doses was effective in maintaining serum phosphorus concentrations within the target range, and patients' gastrointestinal status improved. Sucroferric oxyhydroxide maintained its serum phosphorus-lowering effect with a decreased pill burden, and its concomitant administration with calcium carbonate was well tolerated. PMID- 29340331 TI - Location-Specific Oral Microbiome Possesses Features Associated With CKD. AB - Introduction: Chronic kidney disease (CKD), a progressive loss of renal function, can lead to serious complications if underdiagnosed. Many studies suggest that the oral microbiota plays important role in the health of the host; however, little is known about the association between the oral microbiota and CKD pathogenesis. Methods: In this study, we surveyed the oral microbiota in saliva, the left and right molars, and the anterior mandibular lingual area from 77 participants (18 with and 59 without CKD), and tested their association with CKD to identify microbial features that may be predictive of CKD status. Results: The overall oral microbiota composition significantly differed by oral locations and was associated with CKD status in saliva and anterior mandibular lingual samples. In CKD patients, we observed a significant enrichment of Neisseria and depletion of Veillonella in both sample types and a lower prevalence of Streptococcus in saliva after adjustment for other comorbidities. Furthermore, we detected a negative association of Neisseria and Streptococcus genera with the kidney function as measured by estimated glomerular filtration rate. Neisseria abundance also correlated with plasma interleukin-18 levels. Conclusion: We demonstrate the association of the oral microbiome with CKD and inflammatory kidney biomarkers, highlighting a potential role of the commensal bacteria in CKD pathogenesis. A better understanding of the interplay between the oral microbiota and CKD may help in the development of new strategies to identify at-risk individuals or to serve as a novel target for therapeutic intervention. PMID- 29340332 TI - Endothelial Progenitor Cells and Vascular Health in Dialysis Patients. PMID- 29340333 TI - Acute Kidney Injury Ascertainment Is Affected by the Use of First Inpatient Versus Outpatient Baseline Serum Creatinine. PMID- 29340334 TI - The Authors Reply. PMID- 29340335 TI - Dialysis Should Be Started When Absolutely Necessary, Not Early and Incrementally. PMID- 29340336 TI - Re: Further Evidence Supporting the Accuracy of Quantitative Magnetic Resonance Imaging for Evaluating Iron Load in Dialysis Patients. PMID- 29340337 TI - The Author Replies. PMID- 29340338 TI - The Author Replies. PMID- 29340339 TI - Other Estimation of Blood Losses in Hemodialysis and Formula for Translating Liver Iron Concentration From Iron Balance Calculation Based on Iron Removal by Phlebotomy. PMID- 29340340 TI - American Geriatrics Society Beers Criteria and Anticoagulant Use in Older Adults With Renal Impairment. PMID- 29340341 TI - Credentialing of Hospitalists in Ultrasound-Guided Bedside Procedures: A Position Statement of the Society of Hospital Medicine. AB - Ultrasound guidance is used increasingly to perform the following 6 bedside procedures that are core competencies of hospitalists: abdominal paracentesis, arterial catheter placement, arthrocentesis, central venous catheter placement, lumbar puncture, and thoracentesis. Yet most hospitalists have not been certified to perform these procedures, whether using ultrasound guidance or not, by specialty boards or other institutions extramural to their own hospitals. Instead, hospital privileging committees often ask hospitalist group leaders to make ad hoc intramural certification assessments as part of credentialing. Given variation in training and experience, such assessments are not straightforward "sign offs." We thus convened a panel of experts to conduct a systematic review to provide recommendations for credentialing hospitalist physicians in ultrasound guidance of these 6 bedside procedures. Pathways for initial and ongoing credentialing are proposed. A guiding principle of both is that certification assessments for basic competence are best made through direct observation of performance on actual patients. PMID- 29340342 TI - Precision of the Connection Between Implant and Standard or Computer-Aided Design/Computer-Aided Manufacturing Abutments: A Novel Evaluation Method. AB - PURPOSE: The aim of this in vitro study was to verify whether or not stock and computer-aided design/computer-aided manufacturing (CAD/CAM) abutments show similar precision in the connection with the respective implants. MATERIALS AND METHODS: Ten CAD/CAM titanium abutments were compared with 10 stock titanium abutments. Each abutment fit a regular-platform implant (Institute Straumann). Implants and abutments were measured independently and then connected. During the connection procedure, the torque was measured using a six-axes load cell. Then, outer geometric features of the implant-abutment connection were measured again. Finally, the assembly was sectioned to provide the analysis of inner surfaces in contact. The geometric measurements were performed using a multisensored opto mechanical coordinate measuring machine. The following parameters were measured and compared for the CAD/CAM and stock titanium abutment groups, respectively: width of interference and interference length between the conical surfaces of the implant and abutment; and volume of material involved in the implant-abutment connection. RESULTS: Interference width mean +/- SD values of 18 +/- 0.5 and 14 MU 0.5 MUm were calculated for the stock and CAD/CAM titanium abutment groups, respectively. The difference was statistically significant (P = .02). Furthermore, the interference length mean +/- SD values of 763 +/- 10 and 816 +/- 43 MUm were calculated for stock and CAD/CAM titanium abutment groups, respectively. The difference was also statistically significant (P = .04). Finally, the volume of material involved in the implant-abutment connection was compared between stock and CAD/CAM titanium abutment groups; the mean +/- SD values of 0.134 +/- 0.014 and 0.108 +/- 0.023 mm3 were significantly different (P = .009). CONCLUSION: Both standard and CAD/CAM abutment groups showed a three dimensional (3D) seal activation after the screw tightening. Nevertheless, stock titanium abutments showed a significantly higher volume of material involved in the implant-abutment connection compared with that of CAD/CAM titanium abutments. PMID- 29340343 TI - What is the Impact of Epstein-Barr Virus in Peri-implant Infection? AB - PURPOSE: To compare the qualitative and quantitative profile of Epstein-Barr virus (EBV) at external and internal implant surfaces between participants with peri-implantitis and healthy peri-implant tissues and to quantitatively assess the relation between EBV and periopathogens inside the microbiologic profile associated with peri-implantitis. MATERIALS AND METHODS: Microbiologic specimens were retrieved from 84 patients wearing 190 implants to estimate the levels of EBV and 10 periopathogens in the peri-implant pocket and internal-implant connection using quantitative polymerase chain reaction. RESULTS: The study sample consisted of 113 healthy and 77 peri-implantitis-affected implants. Statistical significance was not reached in EBV prevalence between peri implantitis and healthy controls. EBV-positive participants demonstrated higher levels of Prevotella intermedia (Pi) and Campylobacter rectus (Cr) compared with EBV-negative participants. A positive correlation was demonstrated among EBV and Tannerella forsythia (Tf), Parvimonas micra (Pm), Fusobacterium nucleatum (Fn), and Cr levels in peri-implantitis-affected implants, while healthy controls demonstrated a positive correlation between EBV and Aggregatibacter actinomycetemcomitans (Aa), Pi, and Pm. CONCLUSION: EBV cannot be considered as a microbiologic marker of peri-implantitis. However, EBV could be considered as a risk factor and a peri-implantitis enhancer based on its positive correlations with pathogens associated with peri-implantitis. PMID- 29340344 TI - Biomechanical Comparison of Different Implant Inclinations and Cantilever Lengths in All-on-4 Treatment Concept by Three-Dimensional Finite Element Analysis. AB - PURPOSE: The aim of this study was to evaluate the effect of implant inclination and cantilever length on the stress distribution in mandibular cortical bone, implant, abutment, prosthetic framework, and prosthetic screw via three dimensional (3D) finite element analysis (FEA). MATERIALS AND METHODS: Four different finite element models (0-0, 17-17, 30-30, 45-30) were designed according to the tilting angle (0, 17, 30, and 45 degrees) of the posterior implant and angle of multiunit abutments (0, 17, and 30 degrees). Screw-retained fixed prostheses with different cantilever lengths in accordance with implant inclination were modeled. A foodstuff was used for the 100-N load application. Maximum principal (Pmax) and minimum principal (Pmin) stresses were calculated for cortical bone, and von Mises stress values were calculated for the implant, abutment, metal framework, and prosthetic screw. RESULTS: The highest stress values were observed in the anterior implant, surrounding bone, and prosthetic components of the 0-0 configuration. Pmin stress values in bone were gradually decreased with the increasing inclination of both anterior and posterior implants. Peak Pmax stress values were detected in the 0-0 group. For the cortical bone around the posterior implant, the 30-30 group showed the lowest Pmax value. The highest von Mises stress on implants was found at the posterior implant of the 30-30 group. The stress values on abutments gradually decreased with the increase of the angulation of the posterior implants. For prosthetic screws, the 30-30 and 45-30 groups exhibited lower stress values, and for the metal framework, the 30-30 group exhibited lower stress values. CONCLUSION: Biomechanical comparison via 3D FEA revealed that decreasing the cantilever length by tilting the posterior implants resulted in a reduction in stress values in the peri-implant bone, abutment, prosthetic screw, and metal framework. The groups with 30- and 45-degree tilted posterior implants and shorter cantilever lengths showed better stress distributions in comparison to the straight and 17 degree tilted groups. PMID- 29340345 TI - Intraosseous Temperature Changes During Implant Site Preparation: In Vitro Comparison of Thermocouples and Infrared Thermography. AB - PURPOSE: Implant-supported dental prostheses are based on the principle of osseointegration, and the success of dental implantation depends on adequate formation of this intimate bone-to-implant contact. The application of heat during the drilling procedure leads to a rise in intraosseous temperature at the prospective implant site, which may result in various complications. The purpose of the present study was to compare the ability of thermocouples and infrared thermography to detect changes in intraosseous temperature during dental implant site preparation. MATERIALS AND METHODS: Standardized bovine costae bone blocks were used to simulate the cortical bone of the human mandible. Steel implant form drills with a diameter of 3.0 mm were used. Two types of irrigation systems were used (external cooling only and combined internal and external cooling). Drilling was performed at a constant speed (1,200 rpm). Changes in intraosseous temperature were evaluated using Type T Cu-CuNi thermocouples and an infrared thermography camera system at contact pressures of 5 and 20 N. RESULTS: Infrared thermography detected significantly greater increases in intraosseous temperature (DeltaT) than thermocouples for all tested combinations of cooling system and contact pressure (P <= .0001). CONCLUSION: These results suggest that thermography more accurately reflects intraosseous temperature changes during implant site preparation than thermocouples. PMID- 29340346 TI - Effects of Local Drug and Chemical Compound Delivery on Bone Regeneration Around Dental Implants in Animal Models: A Systematic Review and Meta-Analysis. AB - PURPOSE: One of the suggested methods for enhancing osseointegration is the local application of drug agents around implant surfaces. The aim of this review was to evaluate the methods most commonly used for local drug and chemical compound delivery to implant sites and assess their influence on osseointegration. MATERIALS AND METHODS: An electronic search was undertaken in three databases (PubMed, Scopus, Embase). The search was limited to animal experiments using endosseous implants combined with local drug delivery systems. Meta-analyses were performed for the outcome bone-to-implant contact (BIC). RESULTS: Sixty-one studies met the inclusion criteria. Calcium phosphate (CaP), bisphosphonates (BPs), and bone morphogenetic proteins (BMPs) were the most commonly used chemical compounds. There were two main methods for local drug delivery at the bone-implant interface: (1) directly from an implant surface by coating or immobilizing techniques, and (2) the local application of drugs to the implant site, using carriers. There was a statistically significant increase in BIC for both local drug delivery methods (P = .02 and P < .0001, respectively) compared with the control methods. There was a statistically significant increase in BIC when CaP (P = .0001) and BMPs (P = .02) were either coating implants or were delivered to the implant site, in comparison to when drugs were not used. The difference was not significant for the use of BPs (P = .15). CONCLUSION: It is suggested that the use of local chemical compound delivery systems around implants could significantly improve implant osseointegration in animal models. It is a matter of debate whether these in vivo results might have some significant effect in the human clinical setting in the long term. PMID- 29340347 TI - Effect of Attachment Type on Denture Strain in Maxillary Implant Overdentures: Part 2. Palateless Overdentures. AB - PURPOSE: The aim of this study was to examine the deformation modality of palateless maxillary implant overdentures using isolated attachments under various implant configurations. MATERIALS AND METHODS: A maxillary edentulous model with implants inserted in the anterior, premolar, and molar areas was fabricated, and three types of unsplinted attachments-ball, locator, and magnet were set on the implants distributed in various configurations. Experimental palateless dentures were fabricated, and two strain gauges were attached at the anterior midline of the labial and palatal sides. A vertical occlusal load of 98 N was applied, and the shear strains of dentures were measured. The measurements of strains were compared with the Kruskal-Wallis test (P = .05). RESULTS: The strains of the labial side were much larger than those of the palatal side except for those using the ball attachment. The strains using the magnet attachment on anterior implants were significantly larger than those using other attachments (P < .05). Those using anterior implants were significantly smaller than those using premolar or molar implants (P < .05). CONCLUSION: The strains of palateless overdentures were different according to the attachments and implant distribution. However, when using molar implants, there was no significant difference among the three attachments. PMID- 29340348 TI - Peri-implant Tissues and Patient Satisfaction After Treatment of Vertically Augmented Atrophic Posterior Mandibles with Intraoral Onlay Block Bone Grafts: A Retrospective 3-Year Case Series Follow-up Study. AB - PURPOSE: To evaluate the peri-implant soft and hard tissues of dental implants placed in vertically regenerated posterior mandibles with intraoral onlay block bone grafts and patient satisfaction at 3-year follow-up. MATERIALS AND METHODS: A retrospective study of patients with dental implants placed in posterior mandibular sites vertically augmented with intraoral onlay block bone grafts was carried out between 2005 and 2009 at the University of Valencia. The outcomes assessed at the 3-year follow-up visit were the peri-implant soft tissues (Plaque Index and Bleeding Index, probing depth, keratinized mucosa width, and recession), implant survival and success rates, marginal bone loss, and patient satisfaction. RESULTS: Sixteen patients with 36 implants were included. The mean Plaque Index and Bleeding Index scores were <= 0.4. The mean band of facial keratinized mucosa was >= 3 mm in 52.7% of implants; 38.8% of the implants showed facial recession. The mean midfacial recession was -0.31 +/- 0.75 mm. Implant survival reached 100%, while the success rate was 85%, and the mean marginal bone loss was 1 +/- 1.03 mm (range: 0.1 to 5.3). Good quality of life (9.19 +/- 0.40) was reported for all patients, and the overall general satisfaction score was 8.07 +/- 1.04 (mucosa esthetics: 7.71 +/- 1.45; prosthesis esthetics: 8.42 +/- 0.6; chewing: 8.68 +/- 0.94; ease of cleaning: 8.01 +/- 1.03). CONCLUSION: Considering the limitations of the study, implants in vertically augmented posterior mandibular areas with intraoral onlay block bone grafts showed good soft tissue levels and high patient satisfaction. No implants were lost at 3 years postloading, though one-fifth of the patients showed a statistically significant marginal bone loss. PMID- 29340349 TI - Prevalence of Dental Implants and Evaluation of Peri-implant Bone Levels in Patients Presenting to a Dental School: A Radiographic Cross-Sectional 2-Year Study. AB - PURPOSE: To evaluate the number of patients with dental implants who present to a dental school clinic for screening and to report the prevalence of peri-implant bone level change detected on digital panoramic radiographs of those subjects. MATERIALS AND METHODS: Patient screening files for 9,422 patients over a 2-year period were examined to see how many patients presented with dental implants. Those patients with at least one implant were further evaluated by measuring the bone level on the mesial and distal sides of the implant using the screening radiograph. RESULTS: A total of 187 patients (2%) had at least one implant. In regard to implants, 423 were examined and 146 (33%) had no detectable bone loss defined as bone level below the top of the implant. When thresholds of bone loss were evaluated, 109 implants (25%) had >= 2 mm of bone loss on either the mesial or distal sides or both. The median bone loss was 1.74 mm for the 277 implants with detectable bone loss and 2.97 mm for the 109 implants that had >= 2 mm bone loss. Interestingly, patients who were >= 70 years of age had significantly (P = .03) more bone loss in the mandible compared with the maxilla, while patients who were 60 to 69 years of age had significantly greater loss in the maxilla. CONCLUSION: These data reveal that for patients presenting to the dental school for a screening over a 2-year period, 1.98% had one or more dental implants. Furthermore, those patients with implants had a minimum amount of bone loss as measured from the top of the implant. PMID- 29340350 TI - Estimating the Importance of Significant Risk Factors for Early Dental Implant Failure: A Monte Carlo Simulation. AB - PURPOSE: The purpose of this study was to develop a probabilistic estimation of the strength of risk factors associated with early dental implant failure and rank them by importance. MATERIALS AND METHODS: A systematic literature search was performed on PubMed, Web of Knowledge, Scopus, Cochrane Central Register of Controlled Trials, and grey literature up to April 2017. A total of 368 records were identified. Following the removal of duplicate and irrelevant records, 56 were screened. Eight studies met the inclusion criteria, in which seven statistically significant risk factors for early failure were selected and used to build a conceptual simulation model. Selected risk factors were, namely, "male sex," "smoking," "bone quality," "short implants," "wide implants," "adjacent teeth," and "periodontitis." Monte Carlo simulation with 100,000 iterations and a sensitivity analysis were performed to evaluate the risk estimates of these risk factors and to identify which of the risk factors are more important in influencing the model, respectively. RESULTS: The performed simulation model has shown a significant difference in terms of estimated effects of the risk factors on early failure rate. As a result, the most sensitive risk factor was found to be "periodontitis" with the second being "adjacent teeth" and the third "smoking." The least sensitive factor for early failure was "wide implants." CONCLUSION: This study develops a better understanding of the importance of risk factors for early dental implant failure by an estimated ranking. PMID- 29340351 TI - Effect of Low-Level Laser on the Healing of Bone Defects Filled with Autogenous Bone or Bioactive Glass: In Vivo Study. AB - PURPOSE: This study evaluated the effect of low-level laser therapy (LLLT) on the healing of bone defects filled with autogenous bone or bioactive glass. MATERIALS AND METHODS: A critical size defect with 5-mm diameter was created on the calvaria of 60 adult male rats divided into 6 groups (n = 10): group C (control), group LLLT (LLLT - GaAlAs, wavelength of 780 nm, power of 100 mW, energy density of 210 J/cm2 per point during 60 seconds/point, in five points, only once, after creation of the surgical defect), group AB (autogenous bone), group AB+LLLT (autogenous bone + LLLT), group BG (bioactive glass), group BG+LLLT (bioactive glass + LLLT). All animals were sacrificed at 30 days after surgery. The areas of newly formed bone (ANFB) and areas of remaining particles (ARP) were calculated in relation to the total area (TA). RESULTS: The highest mean +/- SD ANFB was observed for group LLLT (47.67% +/- 8.66%), followed by groups AB+LLLT (30.98% +/ 16.59%) and BG+LLLT (31.13% +/- 16.98%). There was a statistically significant difference in relation to ANFB between group C and the other groups, except for comparison with group BG (Tukey test, P > .05). There was no statistically significant difference in ANFB values between group AB and the other study groups (Tukey test, P > .05), group AB+LLLT and groups BG and BG+LLLT (Tukey test, P > .05), and between groups BG and BG+LLLT (Tukey test, P > .05). The highest mean +/- SD ARP was found for group BG (25.15% +/- 4.82%), followed by group BG+LLLT (17.06% +/- 9.01%), and there was no significant difference between groups (t test, P > .05). CONCLUSION: The LLLT, in the present application protocol, did not increase the area of new bone formation when associated with autogenous bone or bioactive glass. PMID- 29340352 TI - Bone Healing at Functionally Loaded and Unloaded Screw-Shaped Implants Supporting Single Crowns: A Histomorphometric Study in Humans. AB - PURPOSE: To evaluate histologically and histomorphometrically the effect of a delayed load on healing at implants with a moderately rough surface. MATERIALS AND METHODS: Two solid titanium screw-shaped devices, 5 mm long and 3.5 mm in diameter, were inserted in the distal segments of the alveolar ridge of 16 volunteer patients in a nonsubmerged fashion. After 2 months, one implant was loaded, while the other was left unloaded. After 2 months, the two implants were collected from 10 patients using a sonic instrument, and ground sections were prepared from the biopsy specimens. Histomorphometric analyses were performed. RESULTS: After 4 months of healing, biopsy specimens from 10 patients were available for analyses (n = 10). The total bone-to-implant contact percentage was 86.8% +/- 6.5% and 84.6% +/- 3.7% for loaded and unloaded implants, respectively. New bone was represented by 85.5% +/- 6.7% and 83.4% +/- 3.9% at the loaded and unloaded sites, respectively. A very small amount of old parent bone was found. The density of the mineralized bone was 76.8% +/- 8.3% for the loaded sites and 74.1% +/- 10.5% for the unloaded sites. The percentages of new and old bone densities were 69.0% +/- 8.3% and 7.8% +/- 3.9% at the loaded sites, and 65.9% +/ 10.3% and 8.2% +/- 4.5% at the unloaded sites, respectively. No statistically significant differences were disclosed. CONCLUSION: Applying a delayed load to implants supporting single crowns did not yield statistically significant differences, and only a tendency of higher osseointegration and bone density was observed at loaded sites compared with the unloaded sites. PMID- 29340353 TI - Clinical Performance of One-Piece, Screw-Retained Implant Crowns Based on Hand Veneered CAD/CAM Zirconia Abutments After a Mean Follow-up Period of 2.3 Years. AB - PURPOSE: The aim of this study was to evaluate the clinical performance of one piece, screw-retained implant crowns based on hand-veneered computer-aided design/computer-aided manufacture (CAD/CAM) zirconium dioxide abutments with a crossfit connection at least 1 year after insertion of the crown. MATERIALS AND METHODS: Consecutive patients who had received at least one Straumann bone level implant and one-piece, screw-retained implant crowns fabricated with CARES zirconium dioxide abutments were reexamined. Patient satisfaction, occlusal and peri-implant parameters, mechanical and biologic complications, radiologic parameters, and esthetics were recorded. RESULTS: A total of 50 implant crowns in the anterior and premolar region were examined in 41 patients. The follow-up period of the definitive reconstructions ranged from 1.1 to 3.8 years. No technical and no biologic complications had occurred. At the reexamination, 100% of the implants and reconstructions were in situ. Radiographic evaluation revealed a mean distance from the implant shoulder to the first visible bone-to implant contact of 0.06 mm at the follow-up examination. CONCLUSION: Screw retained crowns based on veneered CAD/CAM zirconium dioxide abutments with a crossfit connection seem to be a promising way to replace missing teeth in the anterior and premolar region. In the short term, neither failures of components nor complications were noted, and the clinical and radiographic data revealed stable hard and soft tissue conditions. PMID- 29340354 TI - Implant Mandibular Overdentures Retained by Immediately Loaded Implants: A 1-Year Randomized Trial Comparing Patient-Based Outcomes Between Mini Dental Implants and Standard-Sized Implants. AB - PURPOSE: The aim of this 1-year randomized trial was to determine the stability and the magnitude of the effect of converting patients' conventional mandibular dentures to implant overdentures (IODs) on their satisfaction and oral health related quality of life (OHRQoL). The IODs were retained either with two immediately loaded interconnected standard-diameter implants or with four immediately loaded mini dental implants (MDIs). MATERIALS AND METHODS: Fifty completely edentulous subjects complaining about insufficient retention of their mandibular dentures were randomly assigned to two groups; 25 patients received IODs retained with four MDIs and 25 patients received IODs retained with two standard-sized tissue level (STL) interconnected implants. All IODs were opposed by conventional maxillary dentures. Patients rated their satisfaction on a 100-mm visual analog scale (VAS) and their quality of life on a denture-specific short version of the oral health impact profile (OHIP-20) before assignment, and after 3 and 12 months. A two-way mixed analysis of variance (ANOVA) was conducted to assess the change in time and its interaction with treatment mode on patients' overall satisfaction ratings, the total OHIP-20, and their specific domain scores. RESULTS: Immediate loading was possible for all the patients who received the MDIs. By contrast, the immediate loading protocol could be followed for only 15 of the patients allocated to the STL implant group. For the remaining patients, a delayed loading protocol was applied. There was a significant improvement in patients' general satisfaction between baseline and 3 months and between baseline and 12 months postoperatively (F2,44 = 81.006, P < .001). This increase did not differ between the treatment groups (F4,90 = 1.838, P = .128). The results also showed a decrease in mean overall OHIP score (F2,43 = 46.863, P < .001) between baseline and 3 months and between baseline and 12 months postoperatively, indicating a higher level of OHRQoL. In addition, patients scored lower 3 and 12 months after treatment than at baseline for all seven domains. This decrease did not differ between the treatment groups (F4,88 = 0.608, P = .658). CONCLUSION: The results suggested that in terms of patient based outcomes, mandibular overdentures retained by immediately loaded MDIs can offer an improvement of equal magnitude with that achieved by overdentures retained by standard-sized implants. PMID- 29340355 TI - Human Histologic Evidence of New Bone Formation and Osseointegration Between Root Dentin (Unplanned Socket-Shield) and Dental Implant: Case Report. AB - The socket-shield technique described 7 years ago has since grown in its reporting in the literature as a valid method of ridge preservation at immediate implant placement. To date, large clinical cohorts with up-to-4-year follow-up have been reported. Additionally, evidence of tissue histology at the dental implant and socket-shield has been demonstrated in the animal model. However, human histologic evidence has not yet been available, and the clinician's uncertainty regarding the tissues that may form between the socket-shield and dental implant may remain unanswered until now. This case report presents the first human histologic evidence that bone may entirely fill the space between root dentin and an osseointegrated implant surface. PMID- 29340356 TI - Long-life sodium/carbon fluoride batteries with flexible, binder-free fluorinated mesocarbon microbead film electrodes. AB - Home-made fluorinated mesocarbon microbeads (F-MCMBs) were synthesised and employed in sodium batteries. Flexible, binder-free F-MCMB film electrodes were fabricated to enhance the cycle stability, and 65 cycles were achieved, which is the longest lifespan reported thus far. Nitrogen-doped graphene nanosheets (N GNS) were also introduced as a catalyst, with the aim of lowering the voltage gap. PMID- 29340357 TI - Expanding the chemical diversity of TNA with tUTP derivatives that are substrates for a TNA polymerase. AB - Expanding the chemical diversity of threose nucleic acid (TNA) beyond the natural bases would enable the development of TNA polymers with enhanced physicochemical properties. Here, we describe a versatile approach for increasing the chemical diversity of TNA using 5-alkynyl-modified alpha-l-threofuranosyl uridine triphosphates that are substrates for a TNA polymerase. PMID- 29340358 TI - A strategy for generating aryl radicals from arylborates through organic photoredox catalysis: photo-Meerwein type arylation of electron-deficient alkenes. AB - Photoinduced reactions of arylboronic acids with electron deficient alkenes under mild organic photoredox catalysis conditions lead to the formation of Meerwein arylation type adducts via the generation of aryl radicals. PMID- 29340359 TI - [UCl4(HCN)4] - a hydrogen cyanide complex of uranium tetrachloride. AB - The reaction of uranium tetrachloride with anhydrous liquid hydrogen cyanide yields a turquoise microcrystalline powder of tetrachloridotetraformonitrileuranium(iv), [UCl4(HCN)4]. We determined the crystal structure of this compound by powder neutron diffraction. The compound was further characterized by IR spectroscopy and thermogravimetric analysis as well as by magnetic measurements. The paramagnetic compound crystallizes in the tetragonal space group type I4[combining macron]. To the best of our knowledge this compound represents the first structurally elucidated uranium(iv) complex with HCN as a ligand. PMID- 29340360 TI - Saline hybrid nanoparticles with phthalocyanine and tetraphenylporphine anions showing efficient singlet-oxygen production and photocatalysis. AB - The inorganic-organic hybrid nanoparticles Gd43+[AlPCS4]34- and La43+[TPPS4]34- ([AlPCS4]4-: aluminium(iii) chlorido phthalocyanine tetrasulfonate; [TPPS4]4-: tetraphenylporphine sulfonate) are shown for the first time. Both were obtained via aqueous synthesis and contain extremely high contents of [AlPCS4]34- (81 wt%) and [TPPS4]34- (83 wt%). They show efficient singlet oxygen (1O2) production upon daylight and red-light irradiation. Photocatalysis is evidenced via dye degradation as a proof-of-the-concept and proceeds with daylight and even red light illumination. PMID- 29340362 TI - Synergetic topography and chemistry cues guiding osteogenic differentiation in bone marrow stromal cells through ERK1/2 and p38 MAPK signaling pathway. AB - Both the topographic surface and chemical composition modification can enhance rapid osteogenic differentiation and bone formation. Till now, the synergetic effects of topography and chemistry cues guiding biological responses have been rarely reported. Herein, the ordered micro-patterned topography and classically essential trace element of strontium (Sr) ion doping were selected to imitate topography and chemistry cues, respectively. The ordered micro-patterned topography on Sr ion-doped bioceramics was successfully duplicated using the nylon sieve as the template. Biological response results revealed that the micro patterned topography design or Sr doping could promote cell attachment, ALP activity, and osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs). Most importantly, the samples both with micro-patterned topography and Sr doping showed the highest promotion effects, and could synergistically activate the ERK1/2 and p38 MAPK signaling pathways. The results suggested that the grafts with both specific topography and chemistry cues have synergetic effects on osteogenic activity of BMSCs and provide an effective approach to design functional bone grafts and cell culture substrates. PMID- 29340361 TI - A curcumin-loaded polymeric micelle as a carrier of a microRNA-21 antisense oligonucleotide for enhanced anti-tumor effects in a glioblastoma animal model. AB - A glioblastoma is a common primary brain tumor that expresses microRNA-21 (miR 21), which inhibits the expression of pro-apoptotic genes such as phosphatase and tensin homologue (PTEN) and programmed cell death 4 (PDCD4). Therefore, an antisense-oligonucleotide against miR-21 (miR21ASO) could have therapeutic effects for glioblastomas. In this study, curcumin was loaded into deoxycholic acid-conjugated polyethylenimine (DP) micelles. The curcumin-loaded DP micelle (DP-Cur) was evaluated as a carrier for the combined delivery of curcumin and miR21ASO. Gel retardation and heparin competition assays showed that DP-Cur formed stable complexes with miR21ASO. The anti-tumor effects of the combined delivery of curcumin and miR21ASO were evaluated in C6 glioblastoma cells. In vitro transfection showed that DP-Cur had an miR21ASO delivery efficiency similar to that of polyethylenimine (25 kDa, PEI25k) and DP. In the C6 cells, the delivery of miR21ASO using DP-Cur effectively reduced the miR21 level. The miR21ASO/DP-Cur complex induced apoptosis more effectively than the single delivery of curcumin or miR21ASO. The therapeutic effect of the miR21ASO/DP-Cur complex was also evaluated in an intracranial glioblastoma animal model. The miR21ASO/DP-Cur complex reduced the tumor volume more effectively than single therapy of curcumin or miR21ASO. Immunohistochemistry showed that PDCD4 and PTEN were induced in the miR21ASO/DP and miR21ASO/DP-Cur complex groups. Therefore, DP Cur is an efficient carrier of miR21ASO and the combined delivery of miR21ASO and curcumin may be useful in the development of combination therapy for glioblastoma. PMID- 29340363 TI - Central-metal effect on intramolecular vibrational energy transfer of M(CO)5Br (M = Mn, Re) probed by two-dimensional infrared spectroscopy. AB - Vibrational energy transfer in transition metal complexes with flexible structures in condensed phases is of central importance to catalytical chemistry processes. In this work, two molecules with different metal atoms, M(CO)5Br (where M = Mn, Re), were used as model systems, and their axial and radial carbonyl stretching modes as infrared probes. The central-metal effect on intramolecular vibrational energy redistribution (IVR) in M(CO)5Br was investigated in polar and nonpolar solvents. The linear infrared (IR) peak splitting between carbonyl vibrations increases as the metal atom changes from Mn to Re. The waiting-time dependent two-dimensional infrared diagonal- and off diagonal peak amplitudes reveal a faster IVR process in Re(CO)5Br than in Mn(CO)5Br. With the aid of density functional theory (DFT) calculations, the central-metal effect on IVR time linearly correlates with the vibrational coupling strength between the two involved modes. In addition, the polar solvent is found to accelerate the IVR process by affecting the anharmonic vibrational potentials of a solute vibration mode. PMID- 29340374 TI - A well-defined unimolecular channel facilitates chloride transport. AB - A unimolecular ion channel was optimized by functionalization with a new type of rigid-rod oligomer. The macrocycle pendant endows chloride selectivity and the fluorescence feature and suitable length of the rod facilitates the visual insertion of channels into the lipid bilayer, resulting in efficient ion transport with an EC50 value of 0.36 MUM. PMID- 29340375 TI - Enhancement of BMP-2-mediated angiogenesis and osteogenesis by 2-N,6-O-sulfated chitosan in bone regeneration. AB - Sulfated polysaccharides are attractive semi-synthesized materials that can be used as a mimic of heparan sulfate to modulate the protein activity and other physiological processes. In this study, we employed sulfated chitosan to enhance the angiogenic capacity of bone morphogenic protein-2 (BMP-2). Bone marrow stromal cells (BMSCs) cultured in a combination of BMP-2 and 2-N,6-O-sulfated chitosan (SCS) group exhibited a higher cell viability and sprouting ability. The cells also secreted more VEGF and NO. The expression patterns of angiogenic and osteogenic genes were analyzed, and VEGFR2 signaling was found to play a role in the enhancing effect of SCS. The chick embryo chorioallantoic membrane (CAM) assay revealed an enhanced angiogenic effect of BMP-2 when SCS was involved. In addition, we investigated angiogenesis and osteogenesis in mouse using a BMP-2 induced ectopic bone model. Histological and immune-staining analysis revealed that both bone and vascular tissue were enhanced when SCS was added. These data prove that SCS can improve the angiogenic potential of BMP-2 and thus lead to better bone regeneration. PMID- 29340376 TI - The second-harmonic generation intensification derived from localization conjugated pi-orbitals in O22. AB - Molecular construction with pi-conjugated groups is a favorable strategy to discover superior nonlinear optical (NLO) materials. Herein, a novel vanadium carbonate compound K3[V(O2)2O]CO3 (KVCO), which combines two different pi-orbital groups, delocalized (CO3)2- pi-orbital groups and localized (O2)2- pi-orbital groups, was synthesized. Benefiting from the well-arranged [V(O2)2OCO3] unit and dual-synergistic pi-d-pi interaction, KVCO has the largest second harmonic generation (SHG) effect (about 20 times that of KDP) among the current carbonate NLO materials. Moreover, first-principles calculation elucidated the coupling enhancement mechanism between (CO3)2-, (O2)2- and VOn groups. PMID- 29340377 TI - Metal-organic frameworks at interfaces of hybrid perovskite solar cells for enhanced photovoltaic properties. AB - In this study, metal-organic frameworks, as an interfacial layer, were introduced into perovskite solar cells (PSCs) for the first time. An interface modified with the metal-organic framework ZIF-8 efficiently enhanced perovskite crystallinity and grain sizes, and the photovoltaic performance of the PSCs was significantly improved, resulting in a maximum PCE of 16.99%. PMID- 29340378 TI - Chemical dynamics simulations of CID of peptide ions: comparisons between TIK(H+)2 and TLK(H+)2 fragmentation dynamics, and with thermal simulations. AB - Gas phase unimolecular fragmentation of the two model doubly protonated tripeptides threonine-isoleucine-lysine (TIK) and threonine-leucine-lysine (TLK) is studied using chemical dynamics simulations. Attention is focused on different aspects of collision induced dissociation (CID): fragmentation pathways, energy transfer, theoretical mass spectra, fragmentation mechanisms, and the possibility of distinguishing isoleucine (I) and leucine (L). Furthermore, discussion is given regarding the differences between single collision CID activation, which results from a localized impact between the ions and a colliding molecule N2, and previous thermal activation simulation results; Z. Homayoon, S. Pratihar, E. Dratz, R. Snider, R. Spezia, G. L. Barnes, V. Macaluso, A. Martin-Somer and W. L. Hase, J. Phys. Chem. A, 2016, 120, 8211-8227. Upon thermal activation unimolecular fragmentation is statistical and in accord with RRKM unimolecular rate theory. Simulations show that in collisional activation some non-statistical fragmentation occurs, including shattering, which is not present when the ions dissociate statistically. Products formed by non-statistical shattering mechanisms may be related to characteristic mass spectrometry peaks which distinguish the two isomers I and L. PMID- 29340379 TI - Enhanced photocatalytic efficiency of C3N4/BiFeO3 heterojunctions: the synergistic effects of band alignment and ferroelectricity. AB - As one of the most promising photocatalysts, graphitic carbon nitride (g-C3N4) shows a visible light response and great chemical stability. However, its relatively low photocatalytic efficiency is a major obstacle to actual applications. Here an effective and feasible method to dramatically increase the visible light photocatalytic efficiency by forming C3N4/BiFeO3 ferroelectric heterojunctions is reported, wherein the band alignment and piezo /ferroelectricity have synergistic positive effects in accelerating the separation of the photogenerated carriers. At the optimum composition of 10 wt% BiFeO3, the heterojunction shows 1.4 times improved photocatalytic efficiency than that of the pure C3N4. Most importantly, mechanical pressing and electrical poling can also improve the photocatalytic efficiencies by 1.3 times and 1.8 times, respectively. The optimized photocatalytic efficiency is even comparable with that of some noble metal based compounds. These results not only prove the improved photocatalytic activity of the C3N4-ferroelectric heterojunctions, but also provide a new approach for designing high-performance photocatalysts by taking advantage of ferroelectricity. PMID- 29340380 TI - A DFT study of the adsorption of short peptides on Mg and Mg-based alloy surfaces. AB - Adsorption of short peptides, including three dipeptides: arginine-glycine (Arg Gly), glycine-aspartic acid (Gly-Asp), arginine-aspartic acid (Arg-Asp), and one tripeptide arginine-glycine-aspartic acid (RGD), on the surfaces of Mg and Mg alloys (Mg-Zn, Mg-Y, and Mg-Nd), was studied using the first-principles calculations based on density functional theory (DFT), considering van der Waals (vdW) correction. The calculated adsorption energies (Eads) of short peptides on the clean Mg(0001) surface are in the range of -1.73 to -2.80 eV per dipeptide, and -3.24 eV for RGD. The short peptides prefer to bond to Mg atoms at the surface by the O and N anions in their functional groups. For the clean Mg(0001) surface, the Eads of the short peptides are exclusively dominated by the number of functional groups binding to the surface. However, for the surface of the Mg Zn alloy (1% Zn), the adsorption of the peptides is clearly enhanced (by about 0.3 eV per peptide) due to the enhanced N-Mg bond and the electrostatic interactions between the doped Zn at the surface and the backbone chains of the peptides. Furthermore, the attractive interactions are increased with the increase of doped Zn contents (up to 3%). In contrast, for the surfaces of Mg-Y (1% Y) and Mg-Nd (1% Nd) alloys, the adsorption of the peptides is slightly weakened compared to that on the clean Mg(0001) surfaces. Our results provide useful guidance in understanding the interactions between peptides and the Mg based biomedical alloy surfaces at the atomic scale in the biomimetic coating fields. PMID- 29340381 TI - Unraveling the mystery of "tech red" - a volatile technetium oxide. AB - We show that a Tc2O5 molecular species is the likely identity of an unknown volatile oxide which has remained uncharacterized for 50+ years. Exploration of this molecule's absorption spectra and intermolecular self-interactions provides a close match to experimental data and an explanation for volatility and resistance to crystallization. PMID- 29340382 TI - Tuning the indirect-direct band gap transition in the MoS2-xSex armchair nanotube by diameter modulation. AB - The application of the reported armchair transition-metal dichalcogenide (MoS2, MoTe2, MoSTe and WS2, etc.) nanotube is hindered for the optoelectronic devices due to the indirect band gap. By using first-principles calculations, the electronic structures of MoS2-xSex single-wall armchair nanotubes with respect to different diameters are investigated. The MoS2 armchair nanotube exhibits an indirect band gap as a function of nanotube diameters from 10 A to 50 A, whereas MoSSe and MoSe2 exhibit a surprising diameter-induced indirect-direct band gap crossover at the diameters of 25 A and 33 A, respectively. We also find that the optical properties of MoS2-xSex armchair nanotubes are anisotropic and strongly depend on the diameter. PMID- 29340383 TI - Alamethicin self-assembling in lipid membranes: concentration dependence from pulsed EPR of spin labels. AB - The antimicrobial action of the peptide antibiotic alamethicin (Alm) is commonly related to peptide self-assembling resulting in the formation of voltage dependent channels in bacterial membranes, which induces ion permeation. To obtain a deeper insight into the mechanism of channel formation, it is useful to know the dependence of self-assembling on peptide concentration. With this aim, we studied Alm F50/5 spin-labeled analogs in a model 1-palmitoyl-2-oleoyl-sn glycero-3-phosphocholine (POPC) membrane, for peptide-to-lipid (P/L) ratios varying between 1/1500 and 1/100. Pulsed electron-electron double resonance (PELDOR) spectroscopy reveals that even at the lowest concentration investigated, the Alm molecules assemble into dimers. Moreover, under these conditions, electron spin echo envelope modulation (ESEEM) spectroscopy of D2O-hydrated membranes shows an abrupt change from the in-plane to the trans-membrane orientation of the peptide. Therefore, we hypothesize that dimer formation and peptide reorientation are concurrent processes and represent the initial step of peptide self-assembling. By increasing peptide concentration, higher oligomers are formed. A simple kinetic model of equilibrium among monomers, dimers, and pentamers allows for satisfactorily describing the experimental PELDOR data. The inter-label distances in the oligomers obtained from PELDOR experiments become better resolved with increasing P/L ratio, thus suggesting that the supramolecular organization of the higher-order oligomers becomes more defined. PMID- 29340384 TI - Kinetics of the a-C3H5 + O2 reaction, investigated by photoionization using synchrotron radiation. AB - The kinetics of the combustion-relevant reaction of the allyl radical, a-C3H5, with molecular oxygen has been studied in a flow tube reactor at the vacuum ultraviolet (VUV) beamline of the Swiss Light Source storage ring, using the CRF PEPICO (Combustion Reactions Followed by Photoelectron Photoion Coincidence Spectroscopy) setup. The ability to measure threshold photoelectron spectra enables a background-free detection of reactive species as well as an isomer specific analysis of reaction products. Allyl was generated by direct photodissociation of allyl iodide at 266 nm and 213 nm and indirectly by the reaction of propene with Cl atoms, which were generated by photolysis from oxalyl chloride at 266 nm. Experiments were conducted at room temperature at low pressures between 0.8 and 3 mbar using Ar as the buffer gas and with excess O2 to maintain nearly pseudo-first-order reaction conditions. Whereas allyl was detected by photoionisation using synchrotron radiation, the main reaction product allyl peroxy was not observed due to dissociative ionisation of this weakly bound species. From the concentration-time profiles of the allyl signal, second-order rate constants between 1.35 * 1011 cm3 mol-1 s-1 at 0.8 mbar and 1.75 * 1011 cm3 mol-1 s-1 at 3 mbar were determined. The rates obtained for the different allyl radical generation schemes agree well with each other, but are about a factor of 2 higher than the ones reported previously using He as a buffer gas. The discrepancy is partly attributed to the higher collision efficiency of Ar causing a varying fall-off behavior. When allyl is produced by the reaction of propene with Cl atom, an unexpected product is observed at m/z = 68, which was identified as 1,3-butadienal in the threshold photoelectron spectrum. It is formed in a secondary reaction of allyl with the OCCl radical, which is generated in the 266 nm photolysis of oxalyl chloride. PMID- 29340385 TI - Coordination supramolecular assemblies of a monohydroxycucurbit[7]uril and their potential applications in gas sorption. AB - Coordination supramolecular assemblies of monohydroxycucurbit[7]uril ((HO)Q[7]) with alkaline earth metal ions (AE2+) have been formed in aqueous HCl solution in the presence of tetrachloride cadmium anions ([CdCl4]2-) as a structure directing agent. The driving force for the assembly could be attributed to the interaction of the positive electro-potential outer-surface of (HO)Q[7] molecules with [CdCl4]2- anions and ionic dipole interaction of the hydroxyl of (HO)Q[7] molecules with [CdCl4]2- anions. Moreover, the porous structure of the (HO)Q[7]/AE2+-based coordination supramolecular assemblies could result in potential applications in the selective sorption of polar volatile organic molecules, which may be useful in molecular sieves, sensors, absorption and separation. PMID- 29340387 TI - Pb3(SeO3)Br4: a new nonlinear optical material with enhanced SHG response designed via an ion-substitution strategy. AB - Using an ion-substitution strategy, herein, a new polar material, Pb3(SeO3)Br4, with a greatly enhanced SHG response has been successfully designed and synthesized through a hydrothermal reaction. Pb3(SeO3)Br4 crystallizes in the NCS space group P212121 and consists of a three-dimensional framework formed by interconnecting one-dimensional chains, with a good thermal stability up to 230 degrees C. This compound exhibits a phase-matchable SHG response as strong as that of KH2PO4 (KDP) and a relatively wide mid-infrared (mid-IR) transparent window. Moreover, the optical band gap of Pb3(SeO3)Br4 reaches about 3.35 eV, thus leading to a high laser damage threshold (LDT) of 67 MW cm-2, which is over 12 times that of AgGaS2 (<5 MW cm-2) measured under the same condition. All these findings suggest that Pb3(SeO3)Br4 would be a candidate for an NLO material in the mid-IR region. PMID- 29340386 TI - On-chip functional neuroimaging with mechanical stimulation in Caenorhabditis elegans larvae for studying development and neural circuits. AB - Mechanosensation is fundamentally important for the abilities of an organism to experience touch, hear sounds, and maintain balance. Caenorhabditis elegans is a powerful system for studying mechanosensation as this worm is well suited for in vivo functional imaging of neurons. Many years of research using labor-intensive methods have generated a wealth of knowledge about mechanosensation in C. elegans, and the recent microfluidic-based platforms continue to push the boundary for this field. However, developmental aspects of sensory biology, including mechanosensation, are still not fully understood. One current bottleneck is the difficulty in assaying larvae because they are much smaller than adult worms. Microfluidic devices with features small enough for larvae, especially actuators for the delivery of mechanical stimulation, are difficult to design and fabricate. Here, we present a series of automatic microfluidic platforms that allow for in vivo functional imaging of C. elegans responding to controlled mechanical stimulation at different developmental stages. Using a novel fabrication method, we designed highly deformable pneumatically actuated on chip structures that can deliver mechanical stimulation to larval worms. The PDMS actuator allows for quantitatively controlled mechanical stimulation of both gentle and harsh touch neurons, by simply changing the actuation pressure, which makes this device easily translatable to other labs. We validated the design and utility of our systems with studies of the functional role of mechanosensory neurons in developing worms; we showed that gentle and harsh touch neurons function similarly in early larvae as they do in the adult stage, which would not have been possible previously. Finally, we investigated the effect of a sleep like state on neuronal responses by imaging C. elegans in the lethargus state. PMID- 29340388 TI - Recent progress of particle migration in viscoelastic fluids. AB - Recently, research on particle migration in non-Newtonian viscoelastic fluids has gained considerable attention. In a viscoelastic fluid, three dimensional (3D) particle focusing can be easily realized in simple channels without the need for any external force fields or complex microchannel structures compared with that in a Newtonian fluid. Due to its promising properties for particle precise focusing and manipulation, this field has been developed rapidly, and research on the field has been shifted from fundamentals to applications. This review will elaborate the recent progress of particle migration in viscoelastic fluids, especially on the aspect of applications. The hydrodynamic forces on the micro/nano particles in viscoelastic fluids are discussed. Next, we elaborate the basic particle migration in viscoelasticity-dominant fluids and elasto-inertial fluids in straight channels. After that, a comprehensive review on the applications of viscoelasticity-induced particle migration (particle separation, cell deformability measurement and alignment, particle solution exchange, rheometry-on-a-chip and others) is presented; finally, we thrash out some perspectives on the future directions of particle migration in viscoelastic fluids. PMID- 29340389 TI - The photocatalytic role of electrodeposited copper on pencil graphite. AB - We report on the ability of template-electrodeposited copper on pencil graphite as a novel and cost effective photocatalyst by considering the photodimerization of p-aminothiophenol (p-ATP) to 4,4'-dimercaptoazobenzene. PMID- 29340390 TI - Ultrafast stimulated emission of nitrophenolates in organic and aqueous solutions. AB - Early-time dynamics of nitroaromatics and its coressponding bases can give valuable insights into photo-induced reactions relevant to atmospheric and environmental processes. In this work, femtosecond broadband absorption spectroscopy between 350 and 700 nm has been applied to explore the ultrafast dynamics of o-, p- and m-nitrophenol anions (NP-) in basic organic and aqueous solution. Excitation at 400 nm promotes these compounds into the first bright electronic singlet state, which is a charge-transfer state. A surprising finding for all nitrophenolates was a characteristic, spectrally broad stimulated emission (SE) from the electronically excited state into the ground state. The corresponding lifetime was on the order of a few hundred femtoseconds for o- and p-NP- while it was roughly ten times larger for m-NP-. In line with earlier observations, the SE is governed by an out-of-plane torsional motion of the nitro group, leading to a close energetic approach of the relevant electronically excited singlet and ground states. Subsequent dynamics can be assigned to excited state absorption and ground state relaxation due to energy dissipation of the vibrational modes to the solvent that occur for up to several tens of picoseconds. No longer-lasting transient absorption (TA) was found; instead, a complete recovery of the ground state bleaching was observed indicating that triplet state relaxation is either not significantly involved in this spectral part or shifted to other regions. In the aqueous system, time constants for all processes are much smaller than in organic solution, a fact that can be explained by the larger dipole moment of the solvent and the correspondingly stronger intermolecular coupling between NP- and the aqueous solvent. PMID- 29340391 TI - Graphene on {116} faceted monocrystalline anatase nanosheet array for ultraviolet detection. AB - A structure composed of a nanosheet array may trap photons, which could be used to enhance the optical response via resonances; this may be highly useful in ultraviolet (UV) detection, photocatalysis, solar cells, etc. Moreover, anatase nanosheets exposed with the active {001}, {111}, and {116} facets are promising in applications such as Li-ion battery, photocatalysis, and electrochemistry. Therefore, in this study, the {116} faceted single-crystalline anatase nanosheet array with the sheet spacing in the range of several hundred nanometers was directly grown on the transparent conductive substrates. A photo-detector was fabricated by transferring a graphene electrode to the top of the anatase nanosheet array. The resultant device is inactive to visible-light irradiation and instantly responds to the UV light, which is due to the unique UV absorption property of the anatase nanosheet array and the advantage of the Schottky junction between the interfaces of graphene and anatase. The energy barrier between the two materials is 0.122 eV. We have provided a thorough research on graphene/monocrystal anatase-NSs. PMID- 29340392 TI - Enhancing the photoluminescence of surface anchored metal-organic frameworks: mixed linkers and efficient acceptors. AB - We present two approaches to enhance the photoluminescence quantum yield (PLQY) of surface-anchored metal-organic frameworks (SURMOFs). In the first approach we fabricate SURMOFs from a mix of an emissive linker with an optically-inert linker of equivalent length, diluting the emissive linker while maintaining the SURMOF structure. This approach enhances the internal PLQY. However, the increase in internal PLQY is achieved at the expense of a drastic reduction in optical absorption, thus the external PLQY remains low. To overcome this limitation, a second approach is explored wherein energy-accepting guest chromophores are infiltrated into the framework of the active linker. At the correct acceptor concentration, an internal PLQY of 52% - three times higher than the previous approach - is achieved. Additionally, the absorption remains strong leading to an external PLQY of 8%, an order of magnitude better than the previous approach. Using this strategy, we demonstrate that SURMOFs can achieve PLQYs similar to their precursor chromophores in solution. This is of relevance to SURMOFs as emitter layers in general, and we examine the optimized emitter layer as part of a photon upconversion (UC) SURMOF heterostructure. Surprisingly, the same PLQY is not observed after triplet-triplet annihilation in the UC heterostructure as after its normal photoexcitation (although the UC layers exhibit low thresholds consistent with those reported in our previous work). We discuss the potential bottlenecks in energy transport that could lead to this unexpected reduction in PLQY after excitation via triplet-triplet annihilation, and how future design of SURMOF UC multilayers could overcome these limitations. PMID- 29340393 TI - Ferrocenyl-sulfonium ionic liquids - synthesis, characterization and electrochemistry. AB - New ferrocenylsulfonium cation based ionic liquids were prepared by direct alkylation of the corresponding ferrocenyl-based thioethers with N alkylbis(trifluoromethanesulfonyl)imides (R'TFSI). This convenient direct access to organometallic sulfonium bis(trifluoromethanesulfonyl)imide (TFSI) salts without the need for ion exchange was chosen in order to obtain highly pure and reversibly redox active room temperature ILs in many cases. In other cases the anion cation interaction in the solid state was studied by XRD analyses. Moreover a diferrocenylmethylsulfonium tetrafluoroborate with two redox active centers was synthesized. The redox chemistry of these sulfonium salts was investigated via cyclic voltammetry. Furthermore, UV-Vis spectra and thermoanalytical data are discussed. The electron-withdrawing sulfonium group is directly bonded to the ferrocenyl unit, therefore this cationic group influences the potential of these ionic liquids in a more pronounced way than being anchored to the ferrocenyl unit via an organic spacer. With their low absorbance in the visible light and reversible, tunable redox potential, these room temperature ILs open perspectives as redox mediators in dye sensitized solar cells (DSSCs), as redox electrolytes in supercapacitors or as overcharge protection additives in batteries. PMID- 29340394 TI - Highly selective hydrosilylation of olefins and acetylenes by platinum(0) complexes bearing bulky N-heterocyclic carbene ligands. AB - Platinum complexes bearing bulky N-heterocyclic carbene (NHC) ligands, i.e., [Pt(IPr*)(dvtms)] (where, IPr* = 1,3-bis{2,6-bis(diphenylmethyl)-4 methylphenyl}imidazol-2-ylidene) and [Pt(IPr*OMe)(dvtms)] (where, IPr*OMe = 1,3 bis{2,6-bis(diphenylmethyl)-4-methoxyphenyl}imidazol-2-ylidene, dvtms = divinyltetramethyldisiloxane) catalyse nearly quantitatively and highly or completely the selective hydrosilylation of terminal olefins as well as terminal or internal acetylenes. PMID- 29340395 TI - Boosting electrocatalytic hydrogen evolution by plasmon-driven hot-electron excitation. AB - High-performance catalysts for electrocatalytic and photoelectrochemical water splitting hold great promise for renewable energy conversion and storage. Herein, using porous N-doped carbon supported Au nanoparticles as catalysts, we demonstrate that the photon-induced localized surface plasmon resonance (LSPR) excitation on Au nanoparticles dramatically improves the hydrogen evolution reaction (HER), leading to a more than 4-fold increase of current and meanwhile affording a markedly decreased overpotential of 99 mV at a current density of 10 mA cm-2. The HER enhancement can be largely attributed to the efficient charge transfer of N-doped carbon that fastens the injection of hot electrons from plasmonic Au nanoparticles. This study highlights the increase of HER catalysis efficiency by plasmonic excitation and could provide new avenues towards the design of higher energy conversion catalytic water splitting systems with the assistance of light energy. PMID- 29340396 TI - Synthesis and antiproliferative activity of a series of new platinum and palladium diphosphane complexes. AB - New organometallic complexes [M(dppe)(R)2] {where M = Pt or Pd, dppe = 1,2 bis(diphenylphosphano)ethane, and R = C6F4H-x (x = 6,5,4), C6F3H2-3,5, C6F3H2 5,6, C6F3H2-3,6, C6F4(OMe)-4, and C6F4(cyclo-C5H10N)-4, the numbers x refer to the positions of the protons in the polyfluoroaryl ligands} were synthesised either through transmetalation from the dichlorido complexes [M(dppe)Cl2] or through ligand exchange using [M(diene)Cl2] precursor complexes with diene = 1,5 cyclooctadiene (cod) or 1,5-hexadiene (hex). Alternatively, [M(dppX)Cl(R)] complexes with dppX = dppm (1,1-bis(diphenylphosphano)methane), dppe, dppp (1,3 bis(diphenylphosphano)propane), and dppb (1,4-bis(diphenylphosphano)butane) were prepared in decarboxylation reactions from thallium(i) carboxylates Tl(O2CR). The different preparative methods were compared in terms of yield and purity. Structural and spectroscopic data are reported for the new dppX- and diene-M(R)2 complexes. Antiproliferative activity was investigated for these new complexes against the HT-29 (colon carcinoma) and MCF-7 (breast adenocarcinoma) cell lines, and the active compounds of this first series together with organometallic dppX or hex PtII or PdII complexes were then included in cell tests using L1210 (leukaemia cells) and the cisplatin-resistant L1210/DDP cell line. Remarkably, promising antiproliferative results were found for a few PtII and PdII complexes, while structurally closely related compounds were essentially nontoxic. PMID- 29340397 TI - Ligand modification of UiO-66 with an unusual visible light photocatalytic behavior for RhB degradation. AB - A series of isostructural UiO-66-X (X = H, NH2, Br, (OH)2, (SH)2) catalysts have been successfully synthesized by modifying different functional groups on the ligand. The effects of the ligand modification of UiO-66 were investigated for their photocatalytic activity of Rhodamine B degradation under visible light. Surprisingly, UiO-66-NH2 and UiO-66-(OH)2 which have narrow bandgaps and excellent visible light absorption do not show outstanding photocatalytic performances compared to UiO-66 and UiO-66-Br. Electrochemical test results indicated that the conduction band potential of UiO-66-X and the separation efficiency of electrons were quite important in these photocatalytic reactions, other than the electronic effect as reported. Similar photocatalytic degradation behaviors were found for Congo red and methyl orange. Herein, we firstly reported different mechanisms of selective degradation in the case of UiO-66, which subverted the previous understanding of photodegradation behavior. PMID- 29340398 TI - Synthesis and crystal structure of Sr3Bi2O6 and structural change in the strontium-bismuth-oxide system. AB - The crystal structures and their changing trend in the strontium-bismuth-oxide system are critical for the studies of the related systems and their applications. The crystal structure of Sr3Bi2O6 was obtained for the first time in the space group of R3[combining macron] with a huge unit cell of a = b = 25.1146(19) A and c = 18.3685(16) A and all bismuth ions are Bi3+ forming [BiO3] trigonal pyramids. Sr3Bi2O6 is a key compound for the structural change trend in the SrO-Bi2O3 binary oxide system at 1000 degrees C. With a decrease in the bismuth content, its valence state changes from +3 to +5 and Bi-O polyhedra changes from connected to isolated before Bi(v) appearance. In the system, the boundary of the solid solution beta-phase (Sr1-xBixO1+0.5x) at 900 degrees C was also determined accurately as 0.770 <= x <= 0.862, experimentally. PMID- 29340399 TI - Landscape of gene networks for random parameter perturbation. AB - Landscape approaches have been exploited to study the stochastic dynamics of gene networks. However, how to calculate the landscape with a wide range of parameter variations and how to investigate the influence of the network topology on the global properties of gene networks remain to be elucidated. Here, I developed an approach for the landscape of random parameter perturbation (LRPP) to address this issue. Based on a self-consistent approximation approach, by making perturbations to parameters in a given range, I obtained the landscape for gene network systems. I applied this approach to two biological models, one for the mutual repression model and the other for the embryonic stem (ES) cell differentiation network. For the mutual repression model, my results confirm quantitatively that positive feedback promotes the robustness of multistability. For the ES cell differentiation model, I identify three cell states, representing the ES cell, the differentiation cell, and the intermediate state cell, respectively. I propose that the intermediate states and the wide range of parameter values coming from inhomogeneous cellular environments provide possible explanations for the heterogeneity observed in single cell experiments. I also offer a counterintuitive result that noise could reduce heterogeneity and promote the stability of cell states. These results support that the network topology determines the operating principles of the genetic networks, reflected by the representative landscapes from LRPP. This work provides a new route to obtain the potential landscape for a gene network system given a wide range of parameter values and study the influences of the network topology on the global properties of the system. PMID- 29340400 TI - Femtosecond laser induced underwater superaerophilic and superaerophobic PDMS sheets with through microholes for selective passage of air bubbles and further collection of underwater gas. AB - Controlling underwater bubble behavior on a solid surface is of great research significance, particularly in extreme cases. However, the realization of artificial underwater superaerophobic or superaerophilic surfaces is still a challenge. Herein, a micro/nanoscale hierarchical rough structure was formed on polydimethylsiloxane (PDMS) surface by one-step femtosecond laser ablation. The as-prepared surface showed superhydrophobicity in air and superaerophilicity in water. Interestingly, the wettability of such a PDMS surface could be easily switched to in-air superhydrophilicity and underwater superaerophobicity once it was further irradiated by oxygen plasma because the surface chemistry changed. The original femtosecond laser-structured underwater superaerophilic PDMS surface could absorb/capture bubbles, while the plasma-treated underwater superaerophobic surface had excellent anti-bubble ability in water. A rough through-microhole array PDMS sheet was prepared by a mechanical drilling process and subsequent femtosecond laser ablation. The sheet could selectively allow bubbles to pass, that is, the porous underwater superaerophilic sheet allowed bubbles to pass through, while the porous underwater superaerophobic sheet was able to intercept bubbles in a water medium. Using the porous underwater superaerophilic PDMS sheet as the core component, a device that has great ability of collecting underwater bubbles/gas was also designed. PMID- 29340401 TI - A nanopaper-based artificial tongue: a ratiometric fluorescent sensor array on bacterial nanocellulose for chemical discrimination applications. AB - In the present study, a ratiometric fluorescent sensor array as an artificial tongue has been developed on a nanopaper platform for chemical discrimination applications. The bacterial cellulose (BC) nanopaper was utilized for the first time as a novel, flexible, and transparent substrate in the optical sensor arrays for developing high-performance artificial tongues. To fabricate this platform, the hydrophobic walls on the BC nanopaper substrates were successfully created using a laser printing technology. In addition, we have used the interesting photoluminescence (PL) properties of an immobilized ratiometric probe (carbon dot Rhodamine B (CD-RhB) nanohybrids) on the nanopaper platform to improve the visual discrimination analysis. Heavy metal ions were utilized as model analytes to verify the applicability of the fabricated nanopaper-based ratiometric fluorescent sensor array (NRFSA). Using the color variation of the NRFSA platform upon the addition of heavy metal ions, which have been obtained by a smartphone (under an UV irradiation), five heavy metal ions (i.e., Hg(ii), Pb(ii), Cd(ii), Fe(iii), and Cu(ii)) have been well-distinguished through the RGB analysis via production of the characteristic PL fingerprint-like response patterns for each of them. Moreover, the developed optical sensor array was successfully exploited to identify the heavy metal ions in the water and fish samples. We have also found that the PL spectra, which have been obtained by a spectrofluorometer, of the developed NRFSA can be exploited for discrimination applications. We believe that the nanopaper-based artificial tongues will provide innovative insights into the development of optical sensor arrays towards advanced (bio)chemical discrimination applications and can revolutionize the conventional optical sensor array technology. PMID- 29340402 TI - Palladium-catalysed stereoselective synthesis of 4-(diarylmethylidene)-3,4 dihydroisoquinolin-1(2H)-ones: expedient access to 4-substituted isoquinolin 1(2H)-ones and isoquinolines. AB - An efficient method has been developed for the stereoselective synthesis of 4 (diarylmethylidene)-3,4-dihydroisoquinolin-1(2H)-ones 7 through tandem Heck Suzuki coupling at rt using easily available substrates. DBU easily converted the exocyclic double bond of these compounds to endo, furnishing 8 and 9. Reduction of the carbonyl group of 7 was smoothly carried out with borane dimethyl sulphide. Subsequent treatment with KOtBu provided an easy access to 4 substituted isoquinolines 10a if carried out in refluxing 1,4-dioxane, while reaction in DMF at rt led to the incorporation of an extra hydroxyl group at the benzylic position of the isoquinolines to give 10b. This straightforward and metal free procedure would serve as a better alternative to the prevalent procedures. Few of the products could also be transformed into heterocyclic scaffolds structurally resembling known bioactive compounds. PMID- 29340403 TI - Triangular AgAu@Pt core-shell nanoframes with a dendritic Pt shell and enhanced electrocatalytic performance toward the methanol oxidation reaction. AB - Triangular AgAu@Pt nanoframes with a dendritic Pt shell were synthesized by employing Ag nanoprisms as sacrificial templates. Due to the unique frame-like nanostructure and ternary components, the AgAu@Pt nanoframes exhibit impressive electrocatalytic performance toward the methanol oxidation reaction with much higher activity, and better anti-poisoning capability than commercial Pt/C catalysts. PMID- 29340404 TI - A highly efficient nucleophilic substitution reaction between R2P(O)H and triarylmethanols to synthesize phosphorus-substituted triarylmethanes. AB - A highly efficient and general nucleophilic substitution reaction between dialkyl H-phosphonates or diarylphosphine oxides and triarylmethanols catalyzed by HOTf (trifluoromethanesulfonic acid) has been developed. It provides an atom economical protocol for the synthesis of various symmetrical and unsymmetrical phosphorus-substituted triarylmethanes that constitute an emerging family of potent anticancer agents in rich diversity with 40 to 96% yields. The synthetic applicability of this protocol is demonstrated by gram-scale preparations. PMID- 29340405 TI - Modulating interactions between ligand-coated nanoparticles and phase-separated lipid bilayers by varying the ligand density and the surface charge. AB - The interactions between nanoparticles and lipid bilayers are critical in applications of nanoparticles in nanomedicine, cell imaging, toxicology, and elsewhere. Here, we investigate the interactions between nanoparticles coated with neutral and/or charged ligands and phase-separated lipid bilayers using coarse-grained molecular dynamics simulation. Both penetration and adsorption processes as well as the final distribution of the nanoparticles can be readily modulated by varying the ligand density and the surface charge of the nanoparticles. Completely hydrophobic (neutral) nanoparticles with larger size initially preferentially penetrate into the liquid-disordered region of the lipid bilayer and finally transfer into the liquid-ordered region; partially hydrophilic nanoparticles with low or moderate surface charge tend to either distribute in the liquid-disordered region or be adsorbed on the surface of the lipid bilayer, while strongly hydrophilic nanoparticles with high surface charge always reside on the surface of the lipid bilayer. Interactions of the nanoparticles with the lipid bilayers are affected by the surface charge of nanoparticles, hydrophobic mismatch, bending of the ligands, and the packing state of the lipids. Insight in these factors can be used to improve the efficiency of designing nanoparticles for specific applications. PMID- 29340406 TI - Clarifying the high on/off ratio mechanism of nanowire UV photodetector by characterizing surface barrier height. AB - The response of semiconductor nanowire UV sensors represented by ZnO nanowire UV sensor is usually explained by the adsorption and desorption of oxygen molecules, but with the great increase of these sensors' on/off ratio in recent years, this explanation is inadequate and the inner mechanism for the large on/off ratio urgently needs to be explored. Here, the distribution of carrier concentration in a ZnO nanowire is found to be determined as a function of the radius of the nanowire, using a calibrated surface photovoltage method and space charge model. A critical radius is indicated which determines the carrier concentration and photoresponse behavior of the nanowire. When the radius is below this critical value, the carrier concentration in the dark decreases dramatically compared with that of the nanowire under UV light illumination. Specifically, a decrease of carrier concentration by 4-5 orders of magnitude occurs when the radius is below 50 nm, which causes the on/off ratio to vary by the same orders of magnitude. When the radius is above the critical value, the influence of radius on carrier concentration is nonsignificant and the on/off ratio is below 100. Finally, we found that the high on/off ratio of the ZnO nanowire should be ascribed to the complete depletion of the nanowire led by the interplay of radius and surface band bending rather than the change in width of the depletion layer as most papers have suggested. PMID- 29340407 TI - t-BuONa-mediated direct C-H halogenation of electron-deficient (hetero)arenes. AB - An efficient halogenation of electron-deficient (hetero)arenes is described. The reaction utilizes common t-BuONa as a catalyst (for iodination) or a promoter (for bromination and chlorination), and perfluorobutyl iodide, CBr4 or CCl4 as the readily-available halogenating agents, respectively. The protocol features broad scope, high efficiency, mild conditions and gram scalability. An ionic pathway involving halogen bond formation and halophilic attack is proposed. The utility of the resulting iodinated heteroarenes is demonstrated in visible light mediated Caryl-Caryl cross-coupling reaction. PMID- 29340408 TI - Expanding pore sizes of ZIF-8-derived nitrogen-doped microporous carbon via C60 embedding: toward improved anode performance for the lithium-ion battery. AB - Porous carbon and nanocarbons have been extensively applied as anode materials for high-energy density lithium-ion batteries (LIBs). However, as another representative nanocarbon, fullerenes, such as C60, have been scarcely utilized in LIBs because of their poor electrochemical reversibility. Herein, we designed a novel C60-embedded nitrogen-doped microporous carbon material (denoted as C60@N MPC), which was derived from a zeolitic imidazolate framework-8 (ZIF-8) precursor, demonstrating its promising application as a superior anode material for LIB. We first embedded C60in situ into a ZIF-8 matrix via a facile solid state mechanochemical route, which acted as a precursor and was transformed to C60@N-MPC after carbonization. The C60@N-MPC was applied as a novel anode for LIBs, showing an improved reversible specific capacity of ~1351 mA h g-1 at 0.1 A g-1 and a better rate capacity (~1077 mA h g-1 at 1 A g-1 after 400 cycles) relative to those based on the unmodified N-MPC anode. The role of C60 in the superior lithium storage performance of C60@N-MPC was elucidated, revealing that C60 functioned as a pore expander for N-MPC with 3-20 nm mesopores (versus sub-1 nm micropores for the unmodified N-MPC), which facilitated the rapid diffusion of the organic electrolyte. PMID- 29340410 TI - Active textiles with Janus fibres. AB - We describe reshaping of active textiles actuated by bending of Janus fibres comprising both active and passive components. A great variety of shapes, determined by minimising the overall energy of the fabric, can be produced by varying bending directions determined by the orientation of Janus fibres. Under certain conditions, alternative equilibrium states, one absolutely stable and the other metastable coexist, and their relative energy may flip its sign as system parameters, such as the extension upon actuation, change. A snap-through reshaping in a specially structured textile reproduces the Venus flytrap effect. PMID- 29340409 TI - Dynamics of 3D carcinoma cell invasion into aligned collagen. AB - Carcinoma cells frequently expand and invade from a confined lesion, or multicellular clusters, into and through the stroma on the path to metastasis, often with an efficiency dictated by the architecture and composition of the microenvironment. Specifically, in desmoplastic carcinomas such as those of the breast, aligned collagen tracks provide contact guidance cues for directed cancer cell invasion. Yet, the evolving dynamics of this process of invasion remains poorly understood, in part due to difficulties in continuously capturing both spatial and temporal heterogeneity and progression to invasion in experimental systems. Therefore, to study the local invasion process from cell dense clusters into aligned collagen architectures found in solid tumors, we developed a novel engineered 3D invasion platform that integrates an aligned collagen matrix with a cell dense tumor-like plug. Using multiphoton microscopy and quantitative analysis of cell motility, we track the invasion of cancer cells from cell-dense bulk clusters into the pre-aligned 3D matrix, and define the temporal evolution of the advancing invasion fronts over several days. This enables us to identify and probe cell dynamics in key regions of interest: behind, at, and beyond the edge of the invading lesion at distinct time points. Analysis of single cell migration identifies significant spatial heterogeneity in migration behavior between cells in the highly cell-dense region behind the leading edge of the invasion front and cells at and beyond the leading edge. Moreover, temporal variations in motility and directionality are also observed between cells within the cell-dense tumor-like plug and the leading invasive edge as its boundary extends into the anisotropic collagen over time. Furthermore, experimental results combined with mathematical modeling demonstrate that in addition to contact guidance, physical crowding of cells is a key regulating factor orchestrating variability in single cell migration during invasion into anisotropic ECM. Thus, our novel platform enables us to capture spatio-temporal dynamics of cell behavior behind, at, and beyond the invasive front and reveals heterogeneous, local interactions that lead to the emergence and maintenance of the advancing front. PMID- 29340411 TI - Multiplexed detection of nucleic acids using 19F NMR chemical shift changes based on DNA photo-cross-linking of 3-vinylcarbazole derivatives. AB - The detection methodology for nucleic acids is a useful tool for the analysis of biological systems and diagnosis of diseases. We demonstrated the feasibility of the detection of any nucleic acids based on large chemical shifts via ultrafast DNA photo-cross-linking and the effects of substitution by 3-vinylcarbazole derivatives. These chemical shifts enable the sequence-specific detection of any strand using hybridization chain reaction. PMID- 29340413 TI - Stretch tuning of the Debye ring for 2D photonic crystals on a dielectric elastomer membrane. AB - The tunable diffracted pattern (Debye ring) of the well-ordered close-packed 2D photonic crystal (PC) is achieved via large deformation of the dielectric elastomer (DE) membrane for the first time. Two deformation models are proposed, the in-plane deformation driven by voltage and the out-of-plane deformation actuated by pressure. Both experimental and theoretical analyses are conducted to explore the tunability of the DE stretch on the Debye ring of the 2D PC, by voltage and pressure. An excellent agreement is found between the experimental and analytical results. This study shows that tuning the size of the Debye ring by voltage driven in-plane deformation is easy to operate and space-saving. However, it needs a high voltage and the adjustable range is relatively small. On the other hand, the pneumatic tuning by out-of-plane deformation has a widely adjustable range compared with the electric one and the pressure needed is only hundreds to less than two thousand pascal, which is energy-saving. This work may pave the way for the design of various smart sensors and soft displays with the combination of PCs and DEs. PMID- 29340414 TI - Nanoparticle separation based on size-dependent aggregation of nanoparticles due to the critical Casimir effect. AB - Nanoparticles typically have an inherent wide size distribution that may affect the performance and reliability of many nanomaterials. Because the synthesis and purification of nanoparticles with desirable sizes are crucial to the applications of nanoparticles in various fields including medicine, biology, health care, and energy, there is a great need to search for more efficient and generic methods for size-selective nanoparticle purification/separation. Here we propose and conclusively demonstrate the effectiveness of a size-selective particle purification/separation method based on the critical Casimir force. The critical Casimir force is a generic interaction between colloidal particles near the solvent critical point and has been extensively studied in the past several decades due to its importance in reversibly controlling the aggregation and stability of colloidal particles. Combining multiple experimental techniques, we found that the critical Casimir force-induced aggregation depends on relative particle sizes in a system with larger ones aggregating first and the smaller ones remaining in solution. Based on this observation, a new size-dependent nanoparticle purification/separation method is proposed and demonstrated to be very efficient in purifying commercial silica nanoparticles in the lutidine/water binary solvent. Due to the ubiquity of the critical Casimir force for many colloidal particles in binary solvents, this method might be applicable to many types of colloidal particles. PMID- 29340415 TI - Alkaline-earth metal phenylphosphonates and their intercalation chemistry. AB - The intercalation chemistry of layered alkaline-earth metal phenylphosphonates with the general formula MeC6H5PO3.2H2O (Ca, Sr, Ba) is reviewed. The preparation of the host materials is described and their behavior in dependence on the relative humidity and pH of the reaction medium is discussed. Mutual relationships between MeC6H5PO3.2H2O and Me(C6H5PO3H)2 were investigated using a method of computer-controlled addition of reagents. The MeC6H5PO3.2H2O compounds are able to intercalate species having a free electron pair through the so-called coordination intercalation. In this way, 1-alkylamines, 1-alkanols, 1,n-diols and 1,2-diols were intercalated. In the case of the ethanol and methanol intercalates of strontium phenylphosphonate we were able to determine the structure of the host part by single-crystal X-ray diffraction. By combination of the data obtained from the diffraction with molecular modeling we suggested the arrangement of the host molecules in the interlayer space of the host. The arrangement of the shorter diols in the interlayer space of strontium phenylphosphonate was also proposed on the basis of molecular modeling calculations. These models help us to understand the structure of the prepared intercalates. PMID- 29340416 TI - Self-assembly of cationic gemini surfactants, alkanediyl-bis-(dimethyldodecyl ammonium bromide), in cyclohexane: effects of spacer length on their association into reverse lyotropic liquid crystalline or reverse vesicles. AB - Herein, homogeneous solutions of cationic gemini surfactants, alkanediyl alpha,omega-bis(dimethyldodecylammonium bromide), referred to as 12-s-12 where s = 2, 4, 6, 8, and 10, in cyclohexane have been prepared with the help of sodium hexanoate (SH) or sodium laurate (SL). These surfactants self-assembled in cyclohexane to form various aggregating structures, which were characterised by small-angle X-ray scattering (SAXS) together with polarised microscopy observations. The results showed that 12-2-12/SH, where the gemini had the shortest spacer among this series, formed an inverse micellar cubic liquid crystalline phase of the Fd3m structure. 12-s-12/SL, including s = 4, 6, and 8, which contained an adequate length spacer, formed an inverse hexagonal liquid crystalline phase packed by the cylindrical assemblies of surfactants. 12-10 12/SL, in which the gemini had a longer spacer, formed dispersed reverse vesicles (a lamellar structure). The rheological properties of liquid crystalline phases in a linear visco-elastic regime were studied. 12-2-12/SH formed a hard gel, whereas 12-s-12/SL formed soft gels. Dynamic light scattering and steady-state viscosity analyses were performed for the reverse vesicle solutions formed by 12 10-12/SL. In all these systems, the amount of added water W0, denoting the mole ratio of water to the gemini surfactant, was demonstrated to influence the properties. PMID- 29340417 TI - Rose Bengal catalysed photo-induced selenylation of indoles, imidazoles and arenes: a metal free approach. AB - In this report, the highly efficient Rose Bengal-catalysed C(sp2)-H selenylation of indoles, imidazoles and arenes was achieved using a half molar equiv. of diorganoyl diselenides. This metal-free, photo-induced protocol resulted in selenylated products in good to excellent yields. The reaction features are high yields, an atom-economic, gram-scalable and metal-free approach, and applicability to different biologically relevant (hetero)arenes. PMID- 29340423 TI - Total synthesis of five natural eremophilane-type sesquiterpenoids. AB - The first total syntheses of five natural eremophilane-type sesquiterpenoids were achieved in 4-12 steps via a common synthetic intermediate. The syntheses feature a double Michael addition, Robinson annulation, alpha-enolization of an unsaturated ketone, and Pd-catalyzed Suzuki coupling reaction to install the side chain. This synthetic strategy could be easily extended to other eremophilane type sesquiterpenoids with similar bicyclic skeletons. PMID- 29340428 TI - A synergic approach of X-ray powder diffraction and Raman spectroscopy for crystal structure determination of 2,3-thienoimide capped oligothiophenes. AB - This work presents a Raman based approach for the rapid identification of the molecular conformation in a series of new 2,3-thienoimide capped quaterthiophenes, whose crystal structures were determined by synchrotron radiation X-ray powder diffraction. These systems display two conformational polymorphs, known as forms A and B, as a result of the anti-anti-anti and syn anti-syn arrangements of the quaterthiophene cores. In a micro-Raman and computational study, the spectroscopic differences between the conformers were detected and proved to be suitable markers for polymorph identification. Thus, the synergic employment of diffraction and Raman spectroscopy techniques yields a full and reliable characterization of 2,3-thienoimide capped quaterthiophene compounds in their solid state. PMID- 29340432 TI - Capture of colloidal particles by a moving microfluidic bubble. AB - Foams can be stabilized for long periods by the adsorption of solid particles on the liquid-gas interfaces. Although such long-term observations are common, mechanistic descriptions of the particle adsorption process are scarce, especially in confined flows, in part due to the difficulty of observing the particles in the complex gas-liquid dispersion of a foam. Here, we characterise the adsorption of micron-scale particles onto the interface of a bubble flowing in a colloidal aqueous suspension within a microfluidic channel. Three parameters are systematically varied: the particle size, their concentration, and the mean velocity of the colloidal suspension. The bubble coverage is found to increase linearly with position in the channel for all conditions but with a slope that depends on all three parameters. The optimal coverage is found for 1 MUm particles at low flow rates and high concentrations. In this regime the particles pass the bubbles through the gutters between the interface and the channel corners, where the complex 3D flow leads them onto the interface. The largest particles cannot enter into the gutters and therefore provide very poor coverage. In contrast, particle aggregates can sediment onto the microchannel floor ahead of the bubble and get swept up by the advancing interface, thus improving the coverage for both large and medium particle sizes. These observations provide new insight on the influence of boundaries for particle adsorption at an air-liquid interface. PMID- 29340434 TI - Structure-induced switching of interpolymer adhesion at a solid-polymer melt interface. AB - Here we report a link between the interfacial structure and adhesive property of homopolymer chains physically adsorbed (i.e., via physisorption) onto solids. Polyethylene oxide (PEO) was used as a model and two different chain conformations of the adsorbed polymer were created on silicon substrates via the well-established Guiselin's approach: "flattened chains" which lie flat on the solid and are densely packed, and "loosely adsorbed polymer chains" which form bridges jointing up nearby empty sites on the solid surface and cover the flattened chains. We investigated the adhesion properties of the two different adsorbed chains using a custom-built adhesion testing device. Bilayers of a thick PEO overlayer on top of the flattened chains or loosely adsorbed chains were subjected to the adhesion test. The results revealed that the flattened chains do not show any adhesion even with the chemically identical free polymer on top, while the loosely adsorbed chains exhibit adhesion. Neutron reflectivity experiments corroborated that the difference in the interfacial adhesion is not attributed to the interfacial brodening at the free polymer-adsorbed polymer interface. Instead, coarse-grained molecular dynamics simulation results suggest that the tail parts of the loosely adsorbed chains act as "connector molecules", bridging the free chains and substrate surface and improving the interfacial adhesion. These findings not only shed light on the structure-property relationship at the interface, but also provide a novel approach for developing sticking/anti-sticking technologies through precise control of the interfacial polymer nanostructures. PMID- 29340436 TI - Dietary pectin and mango pulp effects on small intestinal enzyme activity levels and macronutrient digestion in grower pigs. AB - The effects of refined pectin and mango pulp on macronutrient digestion and small intestinal enzyme activity were studied in grower pigs. Diets based on wheat starch with and without apple pectin or dried mango fruit pulp were fed to 30 grower pigs for 21 days. Pigs were euthanized two hours postprandially, and their gastrointestinal contents recovered. Starch and protein digestion as well as alpha-amylase activity were all increased in pigs fed pectin. In contrast, fat digestion, lipase and protease (trypsin) activities were all significantly reduced in these pigs. Pigs fed the mango fruit pulp diet had intermediate effects compared with pigs fed refined pectin and control diets. The data suggests that pectin has a significant effect on digestive enzyme activity and subsequent influence on macronutrient digestion. The fact that pectin caused either an increase (alpha-amylase) or decrease (lipase, protease) in enzyme activity in digesta, which either did (starch, lipid) or did not (protein) associate with residual nutrient differences illustrates the complexity of small intestinal responses to added fibre in diets. PMID- 29340437 TI - A novel lysosome-targeted fluorogenic probe based on 5-triazole-quinoline for the rapid detection of hydrogen sulfide in living cells. AB - A fluorogenic probe based on the novel fluorophore 5-triazole-quinoline was developed for the detection of hydrogen sulfide, an endogenous signaling molecule associated with the development of various diseases. The lysosome-targeted probe Lyso-HS was synthesized via C-H direct azidation from 8-aminoquinoline; it was able to detect H2S in 1 min and exhibited excellent turn-on ability with 95-fold fluorescence enhancement based on a new fluorochrome. The high quenching efficiency was further verified using time-dependent density functional theory (TDDFT). The probe also exhibited high selectivity and a low detection limit (as low as 214.5 nM), which has practical applications for disease detection and monitoring. PMID- 29340438 TI - [Human rights and democracy in Argentina: challenges for a future agenda]. PMID- 29340439 TI - [Origin of the scientific arguments underlying qualitative research]. AB - This article analyzes the origin of the primary arguments that underpin the qualitative approach, covering the birthplace of comprehensive and dialectical thought in Germany, its expansion into other countries such as France and the United States, and its spread into Latin America. The historical journey of the text starts with the development of modern science, examining the first empirical works in the Chicago School and the subsequent period of ostracism of qualitative research. The text also evidences a revival of comprehensive theoretical and empirical perspectives from the 1960s onwards, accompanying the cultural movement that came to question the great theoretical narratives and give rise to reflections on subjectivity. Theoretically, qualitative approaches are now considered a promising form of knowledge construction within the social and human sciences, with consolidated theories and a process of permanent internal critique. Such consolidation is ensured by the researchers' formation of conferences and university departments, the existence of books for the training of new researchers, and the increased presence of relevant spaces in scientific journals. PMID- 29340440 TI - [Administration: practices, myths and ideologies]. AB - Administration in the social field is examined based on an analysis of its practices, the rationalist myth and its ideological dimensions. In this way, the article discusses the most frequently utilized concepts (administration, management, gerencia, gestion) and their etymologies; the limitations of teaching administration; the complexity of a practice marked by the dimensions of science, art and the social game; and the ideological question underlying the great thought factory that the general theory of administration has been since the start of the 19th century. The article reflects upon the need to construct a theory based in practice contextualized in the global south that goes beyond the classic frames of reference and, above all, to transform administration into a problem to be discussed outside of the knowledge that recognizes it as a technical practice. PMID- 29340441 TI - [Theoretical reflections regarding subjects of praxis and subjects of antithesis in Brazilian health reform]. AB - The Brazilian Health Reform has been recognized as a project that transcends the sectoral dimension in that it considers an expanded concept of health and social determination, which distinguishes it from other health system reforms of the twentieth century. This article aims to contribute to the construction of the concepts subjects of praxis and subjects of antithesis by discussing certain challenges of praxis in the Brazilian Health Reform, the constitution of social subjects and the emergence of subjects of antithesis. The article argues that theoretical reflection can contribute to political analysis in health and discern the power of a praxis that destabilizes the conservative character of the passive revolution. PMID- 29340442 TI - [Psychological violence against women: What factors increase the risk of this kind of intimate partner abuse?] AB - Using data from Argentina's National Study on Violence Against Women [Estudio nacional sobre violencias contra las mujeres] carried out in 2015, the article identifies the risk factors that increase women's vulnerability to psychological abuse. Findings show that women who are more prone to be victims of this kind of partner violence are those who are less educated, older, do not earn a wage for their work, live with children at home, are involved in less "formal" long-term relationships, as well as those whose male partners have a lower educational level than their own and/or have alcohol problems and/or were victims or witnesses of violence during their childhood. The article suggests possible intervention strategies to eradicate abuse, which should be primarily targeted at empowering women and strengthening their independence from their partners. PMID- 29340443 TI - [Gender performativity, medicalization and health in transsexual women in Mexico City]. AB - The World Health Organization and the American Psychological Association consider transsexuality a pathology and suggest sex-gender reassignment for the biopsychic adjustment of trans people. Through the discursive analysis of experience, this study describes the processes of medicalization and gender performativity in relation to the health of a group of trans women from Mexico City. For this purpose, a qualitative study was conducted in which 10 semi-structured interviews were carried out in 2015. As part of medicalization, the pathologization of transsexuality generated psychic suffering; on the other hand, sex-gender reassignment also entailed additional risks. It is possible to conclude that in trans women, violence and exclusion constitute the primary experiences explaining their foremost health problems. Therefore, it is suggested that it is necessary for discrimination be reduced and for advancements to be made in safer medical interventions. PMID- 29340444 TI - [Mortality due to hypertensive diseases: evidence from the southern border of Mexico in the period 1998-2014]. AB - This article analyzes patterns of mortality due to hypertensive diseases in the southern border of Mexico, as well as the evolution of such mortality in the 1998 2014 period. The emphasis is directed at the causes "Essential (primary) hypertension" (I10X) and "Hypertensive heart disease with heart failure" (I110). Using data from the mortality records of the National Health Information System, two types of analyses were carried out: cross-sectional analysis and time trends. Over the 16 years included in the study, the age-adjusted mortality rates show a clear increase. The findings suggest that the higher presence of indigenous populations is a trait of importance in the determination of the mortality pattern, with the state of Yucatan a case of particular interest. In addition, it is the female population that which exhibits the greatest adverse impact. PMID- 29340445 TI - [Health universalism in Argentina between 2003 and 2015: assessments and challenges based in a macro-institutional approach]. AB - Debates about universalism in health have been gaining ground in Latin America and have entered the policy agenda with differing results. Notwithstanding the country's federalism, the most profound changes that took place in Argentina in the last decade occurred in the arena of national politics. Based on the theoretical contributions of historical neo-institutionalism and implementation studies, this paper aims to analyze, from a macro institutional approach, the scope of the national policy regarding health universalization. This descriptive study is based on secondary sources and the review of research results on the implementation of the programs Remediar, Sumar and Plan Nacer in relation to four variables: coverage, access, sets of benefits and rights included in the policy. Given the characteristics of the Argentine institutional matrix, program implementation in subnational scenarios can be expected to confront complex and heterogeneous terrain in which the programs acquire new meanings with respect to the goal of universality that each poses. PMID- 29340446 TI - [Tensions and contradictions in government interventions for the promotion of breastfeeding]. AB - With the purpose of shedding light on the decrease in the practice of breastfeeding in rural areas of Mexico, this article looks at the current biomedical model and the policies and actions to promote breastfeeding derived from the model's theoretical approach. The article also discusses operational strategies of the governmental social welfare program Oportunidades. For this purpose, the study utilizes the testimonies of 39 young breastfeeding mothers, 11 mothers and grandmothers and 12 members of the health staff in the Nahuatl population of Cuentepec, Morelos, Mexico, which were collected during a previous study in 2008 and 2009. It was found that the biomedical model, which permeates all actions to promote breastfeeding, reifies people, limits communication, devaluates women's traditional knowledge and imposes a discourse that gradually discourages the practice of breastfeeding. The article's proposal is to adopt an epistemic change in biomedical thought that shifts from a paradigm of simplicity to one of complexity, with the purpose of achieving a greater understanding of the bio-psycho-socio-cultural processes of human beings. PMID- 29340447 TI - [Why don't doctors use early insulinization therapy in patients with diabetes mellitus type 2?: A qualitative approach in a Mexican city]. AB - Early insulinization therapy is regarded as an efficient aid to improve long term control and quality of life in patients with diabetes mellitus type 2 (DM2). Nevertheless, both patients and medical staff confront barriers in using this therapeutic tool. This study employs a qualitative approach to explore the barriers to early insulinization among medical staff from the public sector in the city of Xalapa, Veracruz, Mexico. Between 2015 and 2016, in-depth interviews were conducted with general and specialist physicians offering primary health care to patients with DM2. The transcribed interviews were analyzed to extract and organize categories and subcategories of barriers among medical staff. These barriers were then grouped into three categories and exemplified with interview excerpts: barriers coming from the medical staff itself, barriers emerging from the doctor-patient interaction, and institutional barriers. Uses for the classification obtained are discussed, as are some of the solutions proposed by study participants. PMID- 29340448 TI - [Uses of madness: towards the recognition of new interpretations of human suffering]. AB - This article addresses the controversy associated with the construct schizophrenia/psychosis/madness, indicating the need to acknowledge the multiplicity of experiences and interpretations which arise through the use of the construct. The plurality and complexity intrinsic to the phenomenon, the discrepancies in its possible meanings and the value of first-hand experience are indicated as aspects whose recognition is indispensable to both understanding suffering and confronting it socio-educationally. Using interviews carried out in September 2013 and May 2014 with six people diagnosed at least with schizophrenia, who gave their informed consent to participate, these dimensions are explored. Additionally, madness is examined from a queer perspective as a possible space of political expression that permits new paths and forms of social circulation among those afflicted. PMID- 29340449 TI - The continuous challenge of Chagas disease treatment: bridging evidence-based guidelines, access to healthcare, and human rights. PMID- 29340450 TI - Therapeutic drug monitoring of benznidazole and nifurtimox: a systematic review and quality assessment of published clinical practice guidelines. AB - The pharmacological management of adults with chronic-phase Chagas disease is challenging despite it being the recent focus of extensive research. One of the challenges in the current clinical practice guidelines (CPGs) landscape is the existence of non-evidence-based recommendations for the use of laboratory tests in treatment monitoring. This study aimed to systematically assess the quality and consistency of recommendations of CPGs on the pharmacological management of adults with chronic-phase Chagas disease. Systematic literature searches were conducted in MEDLINE, EMBASE, SciELO and Google to identify all published CPGs relevant to the pharmacological management of Chagas disease, between January 2010 and March 2016. Three independent reviewers assessed the quality of each CPG using the Appraisal of Guidelines Research and Evaluation (AGREE) II instrument. A total of five CPGs were included and the overall quality of the guidelines for therapeutic drug monitoring of Chagas disease was moderate-to-low. There was considerable variation in the quality of the CPGs across the AGREE II domains. The domains of scope/purpose, stakeholder involvement, and clarity of presentation were rated well, and the domains of applicability and editorial independence received poor ratings. This review showed that the methodological quality of CPGs for Chagas disease was generally inappropriate, and there was no explicit link between the best available evidence and current recommendations. PMID- 29340451 TI - Is waste collection associated with hepatitis B infection? A meta-analysis. AB - This meta-analysis, which is based on a previously published systematic review, aims to contribute to the scientific discussion on hepatitis B virus (HBV) infection in workers who are exposed to domestic and healthcare wastes. Publications were sought which had been made available on the data used by December 2013 and updated to December 2016. The quality of the included studies was assessed according to the guidelines of Loney et al. for the critical appraisal of studies on the prevalence or incidence of a health problem. To verify the presence of heterogeneity between the papers, we used the Chi-squared test based on a Q statistic. A funnel plot was used to test for publication bias. All included studies had across-sectional study design. The association between exposure to waste and positive serology for the HBV surface antigen (HBsAg) showed a significant association [odds ratio (OR) 1.89, 95% confidence interval (CI) 1.27-2.86; p = 0.0019]. The prevalence rates of HBsAg and anti-HBc seropositivity was 0.04 (95% CI 0.03-0.05) and 0.21 (95% CI 0.14-0.28), respectively (p <0.0001). We found no evidence of publication bias. The results of this meta-analysis indicate a statistically significant association between exposure to solid waste, whether healthcare or domestic, and positive HBV infection markers. Therefore, the working conditions of waste collectors should be analyzed more closely. Immunization against HBV is recommended as the chief preventive measure for all solid waste workers. PMID- 29340452 TI - Detection of multidrug-resistant Pseudomonas aeruginosa harboring bla GES-1 and bla GES-11 in Recife, Brazil. AB - INTRODUCTION: Pseudomonas aeruginosa, an important pathogen globally, presents several resistance mechanisms. This study aimed to investigate the presence of bla GES in clinical isolates of Pseudomonas aeruginosa obtained from various clinical specimens from patients admitted to three different hospitals in Recife, Brazil. The Guiana extended spectrum beta-lactamase (GES) enzymes are responsible for conferring broad spectrum resistance to beta-lactam drugs, including the carbapenems. METHODS: A total of 100 carbapenem-resistant P. aeruginosa isolates underwent polymerase chain reaction (PCR) testing to identify bla GES, bla KPC, bla SPM-1, bla IMP, and bla VIM. Additionally, PCR products positive for bla GES were sequenced. The clonal profiles of these same isolates were then determined by means of enterobacterial repetitive intergenic consensus (ERIC)-PCR analysis. RESULTS: PCR analysis revealed that four isolates harbored bla GES; DNA sequencing showed that two harbored bla GES-1 and two bla GES-11. Beta-lactamase genes bla SPM-1, bla IMP, bla VIM, and bla KPC were investigated; none of these genes was detected. Automated susceptibility testing methods (Vitek(r)2, bioMerieux) showed that the bla GES-1-positive isolates were only susceptible to polymyxin B. The patterns obtained with ERIC-PCR methods showed clonal relationship between the two isolates that harbored bla GES-11, whereas different clonal profiles were found in the isolates harboring bla GES-1. CONCLUSIONS: We detected the presence of bacterial isolates positive for two different variants of the enzyme GES in three different hospitals from Recife, Brazil. These enzymes have a great capacity for dissemination among Gram-negative bacteria and confer broad-spectrum resistance to beta-lactam antibiotics and to the carbapenems. PMID- 29340453 TI - Seroprevalence and spatial distribution dynamics of Yersinia pestis antibodies in dogs and cats from plague foci in the State of Ceara, Northeastern Brazil. AB - INTRODUCTION: In Brazil, the plague is established in several foci located mainly in the northeastern part of the country, where it alternates between active and quiescent periods. These foci in the State of Ceara have high epidemiological importance. In addition to other plague detection activities, plague areas can be monitored through serological surveys of dogs and cats (domestic carnivores), which, following feeding on plague-infected rodents, can develop mild to severe forms of the disease and produce long-lasting antibodies. This study aimed to characterize the circulation dynamics and spatial distribution of Yersinia pestis antibodies in dogs and cats in plague foci areas of Ceara. METHODS: An ecological study was conducted to analyze the temporal series and spatial distribution of secondary data obtained from domestic carnivore serum surveillance in Ceara's plague areas from 1990 to 2014. RESULTS: Joinpoint analysis revealed that the overall trend was a reduction in antibody-positive animals. The mean proportion of antibody-positivity during the whole study period was 1.5% (3,023/203,311) for dogs, and 0.7% (426/61,135) for cats, with more than 4% antibody-positivity in dogs in 1997 and 2002. Antibody titers ranging from 1/16 to 1/64 were frequent. Despite fluctuations and a significant reduction, in recent years, there were antibody-positive animals annually throughout the study period, and the localities containing antibody-positive animals increased in number. CONCLUSION: Yersinia pestis is actively circulating in the study areas, posing a danger to the human population. PMID- 29340454 TI - Human leptospirosis in the Federal District, Brazil, 2011-2015: eco epidemiological characterization. AB - INTRODUCTION: Leptospirosis is an infectious disease that affects more than 5,000 people per year in Brazil. The Federal District (FD) lacks epidemiological studies of human leptospirosis and presents concerning rates of this disease, especially considering its lethality. METHODS: Seventy-nine autochthonous human cases of leptospirosis between 2011 and 2015 were analyzed, with the probable infection location serving as a basis for the collection and analysis of the environmental and epidemiological variables. RESULTS: The incidence of the disease ranged from 0.68-13.39 per 100,000 inhabitants in 21 of the 31 administrative regions that compose the FD. The local profile of human leptospirosis was predominantly associated with urban areas during the rainy season, population access to the sewage network, the treated water network, and the public garbage collection service. The vast majority of cases had a strong association with synanthropic rodents at the infection sites. CONCLUSIONS: In order to prevent and control potentially lethal human leptospirosis infection, the eco-epidemiological characterization of this disease is a valuable tool for public policies of prevention, control, and surveillance. In addition to population awareness, the systematized control of synanthropic rodents could be the main health action to reduce the incidence of this disease in the FD. PMID- 29340455 TI - Central venous catheter-related infections in patients receiving short-term hemodialysis therapy: incidence, associated factors, and microbiological aspects. AB - INTRODUCTION: Bloodstream infections are the second most common cause of death among patients on hemodialysis. This study aimed to evaluate the incidence of and risk factors associated with central venous catheter-related infections in patients undergoing hemodialysis, and to identify and characterize the type and antimicrobial susceptibility profiles of the primary microorganisms isolated during one year of follow-up. METHODS: A prospective cohort study was conducted in 2014 in a hemodialysis referral center. We included 200 outpatients with acute kidney injury who had no permanent venous access. A nurse assessed the patients for signs of infection three times per week during dressing changes. The clinicopathologic characteristics of patients with and without local or systemic infection were compared. RESULTS: Fifty-five episodes of catheter-related infections occurred in 43 (22%) patients; 38 (69%) were bloodstream infections and 17 (31%) were local infections. Thirty-two (75%) patients with infection had femoral vein catheter placement. In total, 6,240 hemodialysis sessions were performed; the rates of primary bloodstream and local infection were 6.1 and 2.7 episodes per 1,000 patients on daily dialysis, respectively. In the univariate analysis, diabetes was significantly associated with the development of infection, while level of education, ethnicity, age, and sex were not. Gram negative bacteria were primarily isolated from blood culture specimens (55% of samples). Of the Gram-negative isolates, 56% were resistant to the carbapenems. CONCLUSIONS: We identified a high incidence of catheter-related infections caused by resistant microorganisms in patients undergoing hemodialysis via central venous catheters. PMID- 29340456 TI - New strategy to improve quality control of Montenegro skin test at the production level. AB - INTRODUCTION: The production of the Montenegro antigen for skin test poses difficulties regarding quality control. Here, we propose that certain animal models reproducing a similar immune response to humans may be used in the quality control of Montenegro antigen production. METHODS: Fifteen Cavia porcellus (guinea pigs) were immunized with Leishmania amazonensis or Leishmania braziliensis , and, after 30 days, they were skin tested with standard Montenegro antigen. To validate C. porcellus as an animal model for skin tests, eighteen Mesocricetus auratus (hamsters) were infected with L. amazonensis or L. braziliensis , and, after 45 days, they were skin tested with standard Montenegro antigen. RESULTS: Cavia porcellus immunized with L. amazonensis or L. braziliensis , and hamsters infected with the same species presented induration reactions when skin tested with standard Montenegro antigen 48-72h after the test. CONCLUSIONS: The comparison between immunization methods and immune response from the two animal species validated C. porcellus as a good model for Montenegro skin test, and the model showed strong potential as an in vivo model in the quality control of the production of Montenegro antigen. PMID- 29340457 TI - Diet Quality of patients with chronic Chagas disease in a tertiary hospital: a case-control study. AB - INTRODUCTION: Nutritional status has been implicated in the modulation of the immune response, possibly augmenting the pathogenesis of Chagas disease (Cd). We evaluated diet quality and nutritional status in adults and elderly patients with chronic Cd in a tertiary hospital. METHODS: A case-control study of Cd patients was conducted, paired for gender, age, and co-morbidities with non-Cd patients. Anthropometric measurements and food frequency questionnaire was used, and diet quality was assessed by the Brazilian Healthy Eating Index-Revised (BHEI-R). The Estimated Average Requirement cut-off points were used to determine the dietary micronutrient adequacy. The Cd group was further grouped according to Los Andes classification. RESULTS: The study participants were 67 +/- 10 years old, 73.6% elderly and 63% female. The prevalence of overweight/obesity and abdominal fat was high in both groups; however, Cd group showed a lower prevalence of obesity and increased risk of disease according to waist circumference classification. There was no difference in BHEI-R score between groups (p=0.145). The Cd group had sodium and saturated fat intake above recommendations and low intake of unsaturated fat, vitamin D, E, selenium, magnesium, and dairy products; but higher intake of iron. According to Los Andes classification, group III presented lower intake of whole fruit and dietary fiber. CONCLUSIONS: Patients with Cd were overweight and the quality of their diet was unsatisfactory based on the recommended diet components for age and sex. PMID- 29340458 TI - Morbidity of schistosomiasis mansoni in a low endemic setting in Ouro Preto, Minas Gerais, Brazil. AB - INTRODUCTION: Despite the advances of disease control programs, severe forms of schistosomiasis are prevalent. The prevalence of the disease in areas frequented by tourists urges for permanent prevention and control. The aim of this study was to describe the morbidity of schistosomiasis in the district of Antonio Pereira, Ouro Preto, Minas Gerais, Brazil. METHODS: The proportion of positives was defined by Kato-Katz coproscopy and urinary POC-CCA rapid test. Hepatosplenic form was diagnosed using abdominal ultrasound. RESULTS: Out of 180 participants,97 were examined by Kato-Katz, with 4 (4.1%) being positive. Thirty four (22.1%) out of 154 were positive by POC-CCA. Five (2.8%) of 177 examined by ultrasound had hepatosplenic form. One of them had undergone splenectomy. One (0.6%)participant had myeloradiculopathy. CONCLUSIONS: Severe forms of schistosomiasis are still prevalent in low endemic areas and should be thoroughly investigated. PMID- 29340459 TI - Ectopic forms of schistosomiasis mansoni in the second macroregion of Alagoas: case series report and review of the literature. AB - INTRODUCTION: Ectopic forms of schistosomiasis are those in which the parasitic element is localized outside the portal system, the natural habitat of the helminth. Although the prevalence rates of schistosomiasis are high in Brazil, clinical and epidemiological data on ectopic forms of the disease are still scarce. METHODS: Cross-sectional, retrospective and descriptive epidemiological study in which cases with a confirmed histopathological diagnosis of an ectopic form of schistosomiasis were analyzed. The cases were selected from a database of the anatomic pathology files of a referral center. RESULTS: Of the 21 cases identified, seven affected the female genital tract and five the male genital tract; four cases were identified in the peritoneum; two cases involved lymph nodes and two involved adipose tissue; and renal involvement was detected in one case. CONCLUSIONS: The lack of knowledge of the clinical presentation of ectopic forms of schistosomiasis makes the early identification and treatment of this form difficult, with direct implications in the reduction of morbidity and mortality in endemic areas. PMID- 29340460 TI - First serologic evidence of human hantavirus infection in Alagoas State in Northeastern Brazil. AB - INTRODUCTION: Hantavirus cardiopulmonary syndrome (HCPS) is rare in Northeastern Brazil. METHODS: Prospective surveillance was conducted over a two-year period in Alagoas State, Northeastern Brazil. The prevalence of anti-hantavirus N-antigen IgM and IgG in human serum samples was determined by enzyme-linked immunosorbent assay testing. RESULTS: High avidity IgG was found in nine of 476 serum samples tested (from 102 patients with clinical manifestations compatible with HCPS, 124 patients with leptospirosis, and 250 healthy rural workers). CONCLUSIONS: Serologic evidence of past hantavirus infection in residents of Alagoas State indicates that hantaviruses are present in northeastern Brazil, even in areas silent for HCPS. PMID- 29340461 TI - Synanthropic triatomines as potential vectors of Trypanosoma cruzi in Central Brazil. AB - INTRODUCTION: Chagas disease surveillance requires current knowledge on synanthropic triatomines. We analyzed the occurrence and Trypanosoma cruzi infection rates of triatomine bugs in central Brazil, during 2012-2014. METHODS: Triatomines were collected inside or around houses, and T. cruzi infection was determined by optical microscopy and conventional/quantitative polymerase chain reaction. RESULTS: Of the 2706 triatomines collected, Triatoma sordida was the most frequent species in Goias State, whereas Panstrongylus megistus predominated in the Federal District. Parasites identified were T. cruzi, T. rangeli, and Blastocrithidia sp. CONCLUSIONS: P. megistus and T. sordida sustained the risk of T. cruzi transmission to humans in central Brazil. PMID- 29340462 TI - Rhodnius stali: new vector infected by Trypanosoma rangeli (Kinetoplastida, Trypanosomatidae). AB - INTRODUCTION: Rhodnius stali infection by Trypanosoma rangeli is reported in this study for the first time. METHODS: The triatomines were collected from the campus of the Federal University of Acre in Rio Branco, Acre, Brazil. The identification of T. rangeli was confirmed by multiplex polymerase chain reaction. RESULTS: The examinations of two specimens revealed R. stali infection by the epimastigote forms of T. rangeli. CONCLUSIONS: The encounter of R. stali infected by T. rangeli generates an alert for the state of Acre, since the simultaneous presence with Trypanosoma cruzi can make the differential diagnosis of Chagas disease difficult. PMID- 29340463 TI - Prevalence of and risk factors associated with the presence of Staphylococcus aureus in the chronic wounds of patients treated in primary health care settings in Brazil. AB - INTRODUCTION: Wounds can be colonized by methicillin-resistant Staphylococcus aureus (MRSA). METHODS: We evaluated the prevalence of S. aureus and MRSA in the wounds of patients treated at Basic Health Units in Brazil and identified risk factors associated with their presence. RESULTS: The prevalence rates of S. aureus and MRSA were 51.5% and 8.7%, respectively. There was a correlation between the presence of S. aureus in wounds and nostrils (p<0.01). A positive association was detected between S. aureus infection and previous benzylpenicillin use (p=0.02). No associations were observed for MRSA. CONCLUSIONS: Multidrug-resistant pathogens are present in primary healthcare settings in Brazil. PMID- 29340464 TI - Seroprevalence of human Trypanosoma cruzi infection in the North of Estado de Mexico. AB - INTRODUCTION: Chagas disease is a neglected public health problem in Mexico; however, detailed studies to determine the seroprevalence in some states have not been performed. METHODS: A total 1,504 human serum from thirteen communities in Estado de Mexico, were analyzed with three diagnostics techniques. RESULTS: The overall seroprevalence was 9.1%, with high prevalence among people aged 51-60 years, while people aged 0-29 years were seronegative against T. cruzi. CONCLUSIONS: Our data demonstrated the seroprevalence of T. cruzi in the North of the Estado de Mexico, an area considered as non-endemic; however, epidemiological conditions necessary for natural transmission were found. PMID- 29340465 TI - Variability in the clinical distributions of Candida species and the emergence of azole-resistant non-Candida albicans species in public hospitals in the Midwest region of Brazil. AB - INTRODUCTION: Incidence and antifungal susceptibility of Candida spp. from two teaching public hospitals are described. METHODS: The minimum inhibitory concentrations of fluconazole, voriconazole, itraconazole, and amphotericin B were determined using Clinical Laboratory Standard Institute broth microdilution and genomic differentiation using PCR. RESULTS: Of 221 Candida isolates, 50.2% were obtained from intensive care unit patients; 71.5% were recovered from urine and 9.1% from bloodstream samples. Candida parapsilosis sensu stricto was the most common candidemia agent. CONCLUSIONS: We observed variations in Candida species distribution in hospitals in the same geographic region and documented the emergence of non-C. albicans species resistant to azoles. PMID- 29340466 TI - Schistosomiasis in the Amazon region: is the current diagnostic strategy still appropriate? AB - INTRODUCTION: This study analyzed the performance of the Kato Katz technique in detecting intestinal schistosomiasis in the State of Para. METHODS: Of three stool samples provided by each of 380 participants, a total of 16 Kato Katz slides were examined to define the reference value (RV) of positives for comparisons. RESULTS: The RV revealed 37 (9.7%) infected participants in contrast to 10 (2.6%) according to a single slide. CONCLUSIONS: This significant underestimation of the infection rate gives reason to discuss if the current classification of prevalence levels reflects the real situation, principally in low transmission areas, like the Amazon region. PMID- 29340467 TI - Prevalence of and risk factors for intestinal parasite infections in pediatric patients admitted to public hospitals in Southern Brazil. AB - INTRODUCTION: This study aimed to evaluate the prevalence of intestinal parasitosis and to identify risk factors associated therewith in hospitalized children. METHODS: Three fecal samples from each patient were evaluated using three different techniques. The patients' nutritional and socioeconomic status and hematologic profiles were evaluated. RESULTS: Of 106 children, 32.1% tested positive for intestinal parasitosis. The associated risk factors were low parental education levels and children's nail-biting habit. Eosinophilia, observed in 15 cases, was not associated with parasitosis. CONCLUSIONS: We recommend routine fecal parasitologic examination for hospitalized children and implementation of educational campaigns on the prevention of these diseases. PMID- 29340468 TI - Serosurvey of Leptospira spp. and Toxoplasma gondii in rats captured from two zoos in Southern Brazil. AB - INTRODUCTION: Norway rats (Rattus norvegicus) are zoonotic reservoirs for Leptospira spp. and Toxoplasma gondii, and influence diseases in urban areas. METHODS: Free-ranging and laboratory-raised rats from two zoos in southern Brazil were tested for Leptospira spp. and T. gondii using microscopic agglutination and modified agglutination tests, respectively. RESULTS: Overall, 25.6% and 4.6% free ranging rats tested positive for Leptospira spp. and T. gondii, respectively, with co-seropositivity occurring in two animals. For laboratory-raised rats, 20% tested positive for Leptospira spp. Also, Leptospira biflexa serovar Patoc and Leptospira noguchii serovar Panama were found. CONCLUSIONS: Serosurveys can show the environmental prevalence of zoonotic pathogens. PMID- 29340469 TI - Sofosbuvir and daclatasvir combination therapy for current hepatitis C virus genotype 4 achieves SVR: a case report of HCV genotype 4 from the Amazon. AB - Hepatitis C is a worldwide endemic disease. However, hepatitis C virus genotype 4 (HCV GT-4) has rarely been reported in Brazil. HCV GT-4 demonstrates high sustained virological response (SVR). Here, we report the case of a 62-year-old HCV GT-4 positive woman complaining of a headache, nausea, and arthralgia. The patient was treated according to the protocol for genotype 4 (12 weeks administration of 400mg sofosbuvir and 60mg daclatasvir daily) and achieved SVR. Although this is not an Amazonas autochthonous case, the presence of genotype 4 is rarely reported in the region. PMID- 29340470 TI - Traumatic rupture of liver hydatid cysts into the peritoneal cavity of an 11-year old boy: a case report from Iran. AB - This is the first published case report of an 11-year-old patient with a rupture of a liver hydatid cyst (HC) into the peritoneal cavity after an abdominal trauma in Iran. The disease was diagnosed using focused abdominal sonography for trauma. To date, no cases of traumatic ruptures of liver HCs in children have been reported in Iran. In the endemic regions of the world, where patients suffer from a history of trauma and constant abdominal symptoms or anaphylactic shock, early diagnosis of HC is crucial as it may disseminate to other organs. The condition needs conservative surgery and follow-up. PMID- 29340471 TI - Epididymo-orchitis caused by Histoplasma capsulatumin a Colombian patient. AB - Although histoplasmosis is generally a self-limited disease, disseminated infection can occur in patients lacking effective cell-mediated immunity, reaching virtually every organ, even the genitourinary tract in rare cases. We report a case of epididymo-orchitis in an immunocompetent 38-year-old bricklayer from the rural area of Villeta, Cundinamarca, Colombia. The patient presented with testicular pain and macroscopic scrotal changes requiring a left orchiectomy, with microbiological isolation and molecular confirmation of Histoplasma capsulatum. PMID- 29340472 TI - Disseminated cutaneous sporotrichosis in patient with alcoholism. AB - Sporotrichosis is the most prevalent subcutaneous mycosis and is characterized by a subacute or chronic development of a cutaneous or subcutaneous nodular lesion. It is caused by the dimorphic fungus Sporothrix spp, which may manifest in different clinical forms. The disseminated cutaneous form is uncommon and is more likely to occur in immunocompromised patients. We report a 47-year-old male patient with multiple cutaneous and subcutaneous nodules. The patient was diagnosed with disseminated cutaneous sporotrichosis based on the isolation and identification of Sporothrix spp. The patient was treated with potassium iodide, which resulted in clinical improvement of the lesions. PMID- 29340473 TI - A case of brucellar spondylitis with lumbar spondylolisthesis. PMID- 29340474 TI - Cryptococcosis in a transplanted kidney allograft. PMID- 29340476 TI - Erratum. AB - [This corrects the article doi: 10.1590/0037-8682-0258-2017]. PMID- 29340475 TI - A proposal for the use of standardized abbreviations for the genera of triatomine bugs (Reduviidae: Triatominae) across the World. PMID- 29340477 TI - Occurrence of gastrointestinal parasites in wild animals in State of Parana, Brazil. AB - The objective of this study was to determine the prevalence and diversity of gastrointestinal parasites in fecal samples from wild birds and mammals from the State of Parana. In total, 220 stool samples were sent to Parasitic Diseases Laboratory of the Federal University of Parana during 13 months (Jan/2013 Jan/2014). A total of 52.7% (116/220) of the animals were positive for cysts, oocysts, eggs and/or trophozoites. In birds, the positivity rate was 37.9% (25/66) and mammals was 59.1% (91/154). Strongyloidea superfamily eggs were observed in 37.3% (82/220) of the samples, Eimeria spp. in 10% (22/220), and Trichuris spp. in 4.5% (10/220). The most frequent mammal species were llamas (Lama glama), and dromedaries (Camelus bactrianus) with infection rate of 70.1% (54/77) and 60.8% (14/23), respectively. In other hand, cockatiels (Nymphicus hollandicus) and ring necks (Psittacula krameri), were the most researched birds, with infection rate of 20% (40/50) and 100% (6/6), respectively. A high prevalence of gastrointestinal parasites was observed in most of wildlife animals. Further investigations should be conducted focusing on parasite control strategies and the conservation measurements for harmonizing the human-animal interaction on the long-term, reducing associated health risks. PMID- 29340478 TI - The long and successful journey of electrochemically active amino acids. From fundamental adsorption studies to potential surface engineering tools. AB - Proteins have been the subject of electrochemical studies. It is possible to apply electrochemical techniques to obtain information about their structure due to the presence of five electroactive amino acids that can be oriented to the outside of the peptidic chain. These amino acids are L-Tryptophan (L-Trp), L Tyrosine (L-Tyr), L-Histidine (L-His), L-Methionine (L-Met) and L-Cysteine (L Cys); their electrochemical behavior being subject of extensive research, but it is still controversial. No spectroscopic investigations have been reported on L Trp, and due to the short life time of the intermediates, ex situ techniques cannot be employed, leading to a never-ending discussion about possible intermediates. In the L-Tyr and L-His cases, spectroelectrochemical studies were performed and different intermediates were observed, suggesting that some intermediates may be observed under specific conditions, as proposed for L-Cys. This amino acid is the most interesting among the electroactive ones because of the presence of a thiol moiety at its side chain, leading to a wide range of oxidation states. It can adsorb onto surfaces of different crystallographic orientation in stereoselective conformation, modifying the surface for different applications.as a surface engineering tool since it plays the role of as an anchor for the growing of nanocrystals inside proteic templates. PMID- 29340479 TI - Enzymes immobilized in Langmuir-Blodgett films: Why determining the surface properties in Langmuir monolayer is important? AB - In this review we discuss about the immobilization of enzymes in Langmuir Blodgett films in order to determine the catalytic properties of these biomacromolecules when adsorbed on solid supports. Usually, the conformation of enzymes depends on the environmental conditions imposed to them, including the chemical composition of the matrix, and the morphology and thickness of the film. In this review, we show an outline of manuscripts that report the immobilization of enzymes as LB films since the 1980's, and also some examples of how the surface properties of the floating monolayer prepared previously to the transfer to the solid support are important to determine the efficiency of the resulting device. PMID- 29340480 TI - Bone repair access of BoneCeramicTM in 5-mm defects: study on rat calvaria. AB - OBJECTIVE: The aim of this study was to evaluate the osteoconductive potential of BoneCeramicTM on bone healing in rat calvaria 5-mm defects. MATERIAL AND METHODS: A 5-mm calvaria bone defect was induced in three groups and the defect was not filled with biomaterial [Clot Group (CG)], autogenous bone (AG), or Bone Ceramic Group (BCG). Animals were euthanized after 14 or 28 days and the bone tissue within the central area of the bone defect was evaluated. Results were compared using ANOVA and Tukey test (p<0.05). Immunohistochemistry was performed using primary antibodies against osteocalcin, RUNX-2, TRAP, VEGF proteins, and 3 dimensional images of the defects in MUCT were obtained to calculate bone mineral density (BMD). RESULTS: In BCG, the defect was completely filled with biomaterial and new bone formation, which was statistically superior to that in the GC group, at both time-points (p<0.001 for 14 days; p=0.002 for 28 days). TRAP protein showed weak, RUNX-2 showed a greater immunolabeling when compared with other groups, VEGF showed moderate immunostaining, while osteocalcin was present at all time-points analyzed. The MUCT images showed filling defect by BCG (BMD= 1337 HU at 28 days). CONCLUSION: Therefore, the biomaterial tested was found to be favorable to fill bone defects for the reporting period analyzed. PMID- 29340481 TI - Evaluation of the sealing ability of different root canal sealers: a combined SEM and micro-CT study. AB - OBJECTIVE: The purpose of this study was to analyze the ability of multiple compounds to seal the dental tubules using scanning electron microscopy (SEM) and micro-computed tomogra-phy (micro-CT). MATERIAL AND METHODS: Twenty-four single root human mandibular premolars were selected and instrumented with nickel titanium rotary file and the final file size was #40/06. They were then randomly allocated into 2 groups, and all samples were filled with single cone gutta percha (#40/06) and one of the tested sealers (AH Plus and EndoSequence BC sealers). All specimens were scanned using micro-CT and then three from each group were randomly selected for SEM analysis. RESULTS: According to SEM, both root canal sealers showed sufficient adaptation to dentin along the whole length of the root canal, though the coronal sections presented superior sealing than the apical sections. Micro porosity analyses revealed that the volume of closed pores and the surface of closed pores had the largest values in the coronal sections, followed by the middle and the apical sections for both sealants (p<0.05). However, no significant difference was observed for those two parameters between AH Plus and EndoSequence BC sealers in any of the three sections (p>0.05), whereas they were larger in the apical section when the AH Plus sealer was used. CONCLUSIONS: By using the single cone technique, neither EndoSequence or AH Plus pro-vides a porosity-free root canal filling. The EndoSequence BC sealer may have similar sealing abilities regarding the whole root canal as the AH Plus sealer. A better sealing effect could be obtained in the coronal and middle sections of a root canal than the apical part by using the tested sealers. PMID- 29340482 TI - Clear cell odontogenic carcinoma of the mandible: a treatment strategy. AB - Clear cell odontogenic carcinoma (CCOC) is a rare odontogenic tumor of the jaws, histologically characterized by the presence of agglomerates of cells with eosinophilic cytoplasm. The patient, a 62-year-old Caucasian woman, presented an intraosseous lesion in the mandibular symphysis. A clinical examination revealed a discrete volumetric increase with a hard consistency, palpable to extraoral and intraoral examinations. Imaging studies revealed an extensive radiolucent area, without defined limits, extending from the region of the right second premolar to the left canine. Incisional biopsy analysis indicated a diagnosis of CCOC. The treatment proposed was segmental resection of the mandible with a safety margin. After six months without recurrence, definitive mandibular reconstruction was performed using an iliac crest graft, followed by rehabilitation with implant supported denture after five months. After three years of post-resection follow up, the patient has shown no evidence of recurrence or metastasis. She continues to be under follow-up. To conclude, CCOC must be considered a malignant tumor with aggressive behavior. Previous studies have shown that resection with free margins is a treatment with a lower rate of recurrence. Nevertheless, long-term follow-up is necessary for such patients. PMID- 29340483 TI - Idiopathic pulmonary fibrosis in Brazil: challenges for epidemiological characterization and management. PMID- 29340484 TI - Evolution in the management of non-small cell lung cancer in Brazil. PMID- 29340486 TI - Tree-in-bud pattern. PMID- 29340485 TI - Noninvasive positive airway pressure: from critically ill patients to physical exercise in outpatients. PMID- 29340487 TI - Understanding diagnostic tests. Part 2. PMID- 29340488 TI - Impact of continuous positive airway pressure on the pulmonary changes promoted by immersion in water. AB - OBJECTIVE: To determine whether different levels of CPAP improve the lung volumes and capacities of healthy subjects immersed in water. METHODS: This was a randomized clinical trial, conducted between April and June of 2016, involving healthy female volunteers who were using oral contraceptives. Three 20-min immersion protocols were applied: control (no CPAP); CPAP5 (CPAP at 5 cmH2O); and CPAP10 (CPAP at 10 cmH2O). We evaluated HR, SpO2, FVC, FEV1, the FEV1/FVC ratio, peak expiratory flow rate (PEFR), and FEF25-75%) at three time points: pre immersion; 10 min after immersion; and 10 min after the end of each protocol. RESULTS: We evaluated 13 healthy volunteers. The CPAP10 protocol reversed the restrictive pattern of lung function induced by immersion in water, maintaining pulmonary volumes and capacities for a longer period than did the CPAP5 protocol. CONCLUSIONS: When the hemodynamic change causing a persistent lung disorder, only the application of higher positive pressures is effective in maintaining long term improvements in the pulmonary profile. PMID- 29340489 TI - Tuberculosis infection among primary health care workers. AB - OBJECTIVE: To estimate the prevalence of and determine the risk factors associated with latent Mycobacterium tuberculosis infection (LTBI) among primary health care workers in the city of Vitoria, Brazil. METHODS: This was a cross sectional study with data collected through a survey regarding socio-demographic, occupational, clinical, and exposure characteristics, as well as knowledge about tuberculosis, conducted between 2011 and 2012. All participants underwent a tuberculin skin test (TST), and TSTs were read at 72 h by a trained professional. RESULTS: A total of 218 primary health care workers participated in the study. The prevalence of TST positivity at the >= 10-mm and >= 5-mm cut-off points was, respectively, 39.4% (95% CI: 32.9-45.9) and 54.1% (95% CI: 47.4-60.7). Regarding occupational categories, community health agents had the highest proportion of TST positivity, regardless of the cut-off point (>= 10 mm: 47.5%; and >= 5 mm: 60.5%). Regarding factors associated with TST results, "having had a previous TST" showed a statistically significant association with TST positivity at the >= 10-mm and >= 5-mm cut-off points (OR = 2.5 [95% CI: 1.17-5.30] and OR = 2.18 [95% CI: 1.23-3.87], respectively). CONCLUSIONS: The prevalence of LTBI was found to be high among the primary health care workers in this sample. Therefore, we recommend the establishment of a periodic screening program for LTBI and implementation of effective biosafety policies for the prevention of this infection among primary health care workers. PMID- 29340490 TI - Accuracy of closed pleural biopsy in the diagnosis of malignant pleural effusion. AB - OBJECTIVE: Previous studies have demonstrated that closed pleural biopsy (CPB) has a sensitivity of less than 60% for diagnosing malignancy. Therefore, controversy has recently emerged regarding the value of CPB as a diagnostic test. Our objective was to assess the accuracy of CPB in diagnosing malignancy in patients with pleural effusion. METHODS: This was a prospective 8-year study of individuals who underwent CPB to establish the etiology of pleural effusion. Information on each patient was obtained from anatomopathological reports and medical records. When CPB findings showed malignancy or tuberculosis, the biopsy was considered diagnostic, and that was the definitive diagnosis. In cases in which biopsy histopathological findings were nonspecific, a definitive diagnosis was established on the basis of other diagnostic procedures, such as thoracoscopy, thoracotomy, fiberoptic bronchoscopy, biochemical and cellular measurements in pleural fluid, and/or microbiological tests. The accuracy of CPB was determined with 2 * 2 contingency tables. RESULTS: A total of 1034 biopsies from patients with pleural effusion were studied. Of those, 171 (16.54%) were excluded from the accuracy analysis either because of inadequate samples or insufficient information. The results of the accuracy analysis were as follows: sensitivity, 77%; specificity, 98%; positive predictive value, 99%; negative predictive value, 66%; positive likelihood ratio, 38.5; negative likelihood ratio, 0.23; pre-test probability, 2.13; and post-test probability, 82. CONCLUSIONS: CPB is useful in clinical practice as a diagnostic test, because there is an important change from pre-test to post-test probability. PMID- 29340491 TI - Survival in a cohort of patients with lung cancer: the role of age and gender in prognosis. AB - OBJECTIVE: To determine the demographic and clinical characteristics of patients with non-small cell lung cancer (NSCLC), as well as their disease course, by age group and gender. METHODS: This was a retrospective cohort study of patients diagnosed with NSCLC from 2000 to 2012 and followed until July 2015 in a tertiary referral hospital in the city of Sao Paulo, Brazil. Based on the 25th and 75th percentiles of the age distribution, patients were stratified into three age groups: < 55 years; >= 55 and < 72 years; and >= 72 years. Survival time was evaluated during the follow-up period of the study. Functions of overall and gender-specific survival stratified by age groups (event: all-cause mortality) were calculated using the Kaplan-Meier method. Differences among survival curves were assessed via the log-rank test. RESULTS: We included 790 patients with the following age distribution: < 55 years, 165 patients; >= 55 and < 72 years, 423; and >= 72 years, 202. In the entire sample, there were 493 men (62.4%). Adenocarcinoma was the most common histological pattern in the < 72-year age groups; 575 patients (73%) presented with advanced disease (stages IIIB-IV). The median 5-year survival was 12 months (95% CI: 4-46 months), with no significant differences among the age groups studied. CONCLUSIONS: NSCLC remains more common in men, although we found an increase in the proportion of the disease in women in the < 55-year age group. Adenocarcinoma predominated in women. In men, squamous cell carcinoma predominated in the >= 72-year age group. Most patients presented with advanced-stage disease at diagnosis. There were no statistical differences in survival between genders or among age groups. PMID- 29340492 TI - Evaluation of the impact that the changes in tuberculosis treatment implemented in Brazil in 2009 have had on disease control in the country. AB - OBJECTIVE: To analyze the impact that the 2009 changes in tuberculosis treatment in Brazil had on the rates of cure, tuberculosis recurrence, mortality, treatment abandonment, and multidrug-resistant tuberculosis (MDR-TB). METHODS: An ordinary least squares regression model was used in order to perform an interrupted time series analysis of secondary data collected from the Brazilian Tuberculosis Case Registry Database for the period between January of 2003 and December of 2014. RESULTS: The 2009 changes in tuberculosis treatment in Brazil were found to have no association with reductions in the total number of cases (beta = 2.17; 95% CI: -3.80 to 8.14; p = 0.47) and in the number of new cases (beta = -0.97; 95% CI: 5.89 to 3.94; p = 0.70), as well as having no association with treatment abandonment rates (beta = 0.40; 95% CI: -1.12 to 1.93; p = 0.60). The changes in tuberculosis treatment also showed a trend toward an association with decreased cure rates (beta = -4.14; 95% CI: -8.63 to 0.34; p = 0.07), as well as an association with increased mortality from pulmonary tuberculosis (beta = 0.77; 95% CI: 0.16 to 1.38; p = 0.01). Although there was a significant increase in MDR TB before and after the changes (p < 0.0001), there was no association between the intervention (i.e., the changes in tuberculosis treatment) and the increase in MDR-TB cases. CONCLUSIONS: The changes in tuberculosis treatment were unable to contain the decrease in cure rates, the increase in treatment abandonment rates, and the increase in MDR-TB rates, being associated with increased mortality from pulmonary tuberculosis during the study period.Keywords: Tuberculosis, pulmonary/epidemiology; Tuberculosis, pulmonary/drug therapy; Tuberculosis, pulmonary/mortality; Interrupted time series analysis; Drug resistance, multiple; Drug compounding. PMID- 29340493 TI - Mortality from idiopathic pulmonary fibrosis: a temporal trend analysis in Brazil, 1979-2014. AB - OBJECTIVE: To analyze mortality from idiopathic pulmonary fibrosis (IPF) in Brazil over the period 1979-2014. METHODS: Microdata were extracted from the Brazilian National Ministry of Health Mortality Database. Only deaths for which the underlying cause was coded as International Classification of Diseases version 9 (ICD-9) 515 or 516.3 (until 1995) or as ICD version 10 (ICD-10) J84.1 (from 1996 onward) were included in our analysis. Standardized mortality rates were calculated for the 2010 Brazilian population. The annual trend in mortality rates was analyzed by joinpoint regression. We calculated risk ratios (RRs) by age group, time period of death, and gender, using a person-years denominator. RESULTS: A total of 32,092 deaths were recorded in the study period. Standardized mortality rates trended upward, rising from 0.24/100,000 population in 1979 to 1.10/100,000 population in 2014. The annual upward trend in mortality rates had two inflection points, in 1992 and 2008, separating three distinct time segments with an annual growth of 2.2%, 6.8%, and 2.4%, respectively. The comparison of RRs for the age groups, using the 50- to 54-year age group as a reference, and for the study period, using 1979-1984 as a reference, were 16.14 (14.44-16.36) and 6.71 (6.34-7.12), respectively. Men compared with women had higher standardized mortality rates (per 100,000 person-years) in all age groups. CONCLUSION: Brazilian IPF mortality rates are lower than those of other countries, suggesting underdiagnosis or underreporting. The temporal trend is similar to those reported in the literature and is not explained solely by population aging. PMID- 29340494 TI - Niemann-Pick disease type B: HRCT assessment of pulmonary involvement. AB - OBJECTIVE: To analyze HRCT findings in patients with Niemann-Pick disease (NPD) type B, in order to determine the frequency of HRCT patterns and their distribution in the lung parenchyma, as well as the most common clinical characteristics. METHODS: We studied 13 patients (3 males and 10 females) aged 5 to 56 years. HRCT images were independently evaluated by two observers, and disagreements were resolved by consensus. The inclusion criteria were presence of abnormal HRCT findings and diagnosis of NPD type B confirmed by histopathological examination of a bone marrow, lung, or liver biopsy specimen. RESULTS: The most common clinical findings were hepatosplenomegaly and mild to moderate dyspnea. The most common HRCT patterns were smooth interlobular septal thickening and ground-glass opacities, which were both present in all patients. Intralobular lines were present in 12 patients (92.3%). A crazy-paving pattern was observed in 5 patients (38.4%), and areas of air trapping were identified in only 1 case (7.6%). Pulmonary involvement was bilateral in all cases, with the most affected area being the lower lung zone. CONCLUSIONS: Smooth interlobular septal thickening, with or without associated ground-glass opacities, in patients with hepatosplenomegaly is the most common finding in NPD type B. PMID- 29340495 TI - Validation of the STOP-Bang questionnaire as a means of screening for obstructive sleep apnea in adults in Brazil. AB - OBJECTIVE: To validate the Portuguese-language version of the STOP-Bang (acronym for Snoring, Tiredness, Observed apnea, high blood Pressure, Body mass index, Age, Neck circumference, and Gender) questionnaire, culturally adapted for use in Brazil, as a means of screening for obstructive sleep apnea (OSA) in adults. METHODS: In this validation study, we enrolled patients >= 18 years of age, recruited between May of 2015 and November of 2016. All patients completed the STOP-Bang questionnaire and underwent overnight polysomnography. To evaluate the performance of the questionnaire, we used contingency tables and areas under the (receiver operating characteristic) curve (AUCs). RESULTS: We included 456 patients. The mean age was 43.7 +/- 12.5 years, and 291 (63.8%) of the patients were male. On the basis of the apnea-hypopnea index (AHI), we categorized OSA as mild/moderate/severe (any OSA; AHI >= 5 events/h), moderate/severe (AHI >= 15 events/h), or severe (AHI >= 30 events/h). The overall prevalence of OSA was 78.3%, compared with 52.0%, and 28.5% for moderate/severe and severe OSA, respectively. The most common score on the STOP-Bang questionnaire was 4 points (n = 106), followed by 3 points (n = 85) and 5 points (n = 82). An increase in the score was paralleled by a reduction in sensitivity with a corresponding increase in specificity for all AHI cut-off points. The AUCs obtained for the identification of any, moderate/severe, and severe OSA were: 0.743, 0.731, and 0.779, respectively. For any OSA, the score on the questionnaire (cut-off, >= 3 points) presented sensitivity, specificity, and accuracy of 83.5%, 45.5%, and 75.2%, respectively. CONCLUSIONS: The STOP-Bang questionnaire performed adequately for OSA screening, indicating that it could be used as an effective screening tool for the disorder. PMID- 29340496 TI - Effects of simple long-term respiratory care strategies in older men with COPD. AB - OBJECTIVE: To evaluate a 24-month supervised, community-based maintenance exercise program after 3 months of pulmonary rehabilitation (PR) in comparison with a 27-month physical activity counseling program, in terms of the effects on maximal muscle strength, muscle power output, and exercise capacity, in individuals with COPD. METHODS: Sixty-three men with moderate-to-severe COPD were recruited from two previous studies. Of those 63 participants, 31 were offered 3 months of PR followed by a 24-month supervised maintenance exercise program (24MME group) and 32 were offered a 27-month physical activity counseling program (27MPAC group). Measurements at 3 months and at the end of the study period included maximal strength of the upper and lower limbs, power output of the lower limbs, six-minute walk distance (6MWD), and quality of life. RESULTS: At 27 months, the improvements in maximal strength of the upper and lower limbs were greater in the 24MME group than in the 27MPAC group (37.6 +/- 28.3% and 28.4 +/- 13.3%, respectively, vs. 8.8 +/- 16% and 13.6 +/- 16.4%, respectively; p < 0.05), as was the improvement in power output of the lower limbs (24.6 +/- 18.4% vs. 2.3 +/- 28.5%; p < 0.01). The increase in the 6MWD after 3 months was also greater in the 24MME group than in the 27MPAC group (33.2 +/- 36.6 m vs. 2.9 +/- 34.7 m; p < 0.05), although there were no differences between the two groups in terms of the Delta6MWD at 27 months (vs. baseline). CONCLUSIONS: A supervised, community-based maintenance program is a successful long-term strategy to preserve the benefits of PR on peripheral muscle function and exercise capacity in individuals with COPD. However, physical activity counseling can maintain maximal muscle strength and exercise capacity in such individuals. PMID- 29340498 TI - Omalizumab in patients with severe uncontrolled asthma: well-defined eligibility criteria to promote asthma control. PMID- 29340497 TI - Tuberculosis treatment. AB - Tuberculosis treatment remains a challenge due to the need to consider, when approaching it, the context of individual and collective health. In addition, social and economic issues have been shown to be variables that need to be considered when it comes to treatment effectiveness. We conducted a critical review of the national and international literature on the treatment of tuberculosis in recent years with the aims of presenting health care workers with recommendations based on the situation in Brazil and better informing decision making regarding tuberculosis patients so as to minimize morbidity and interrupt disease transmission. PMID- 29340499 TI - Primary sclerosing epithelioid fibrosarcoma of the pleura. PMID- 29340500 TI - Respiratory evaluation through volumetric capnography among grade III obese and eutrophic individuals: a comparative study. AB - BACKGROUND: Excess trunk body fat in obese individuals influences respiratory physiological function. The aims of this study were to compare volumetric capnography findings (VCap) between severely obese patients and normal-weight subjects and to assess whether there is any association between neck circumference (NC), waist-hip ratio (WHR) and VCap among grade III obese individuals. DESIGN AND SETTING: Analytical observational case-matched cross sectional study, University of Campinas. METHODS: This cross-sectional study compared VCap variables between 60 stage III obese patients and 60 normal-weight individuals. RESULTS: In comparison with the normal-weight group, obese patients presented higher alveolar minute volume (8.92 +/- 4.94 versus 6.09 +/- 2.2; P = < 0.0001), CO2 production (278 +/- 91.0 versus 209 +/- 60.23; P < 0.0001), expiratory tidal volume (807 +/- 365 versus 624 +/- 202; P = 0.005), CO2 production per breath (21.1 +/- 9.7 versus 16.7 +/- 6.16; P = 0.010) and peak expiratory flow (30.9 +/- 11.9 versus 25.5 +/- 9.13; P = 0.004). The end expiratory CO2 (PetCO2) concentration (33.5 +/- 4.88 versus 35.9 +/- 3.79; P = 0.013) and the phase 3 slope were normalized according to expired tidal volume (0.02 +/- 0.05 versus 0.03 +/- 0.01; P = 0.049) were lower in the obese group. CONCLUSIONS: The greater the NC was, the larger were the alveolar minute volume, anatomical dead space, CO2 production per minute and per breath and expiratory volume; whereas the smaller were the phase 2 slope (P2Slp), phase 3 slope (P3Slp) and pressure drop in the mouth during inspiration. PMID- 29340501 TI - Accidents involving motorcycles and potential years of life lost. An ecological and exploratory study. AB - CONTEXT AND OBJECTIVE: Traffic accidents have gained prominence as one of the modern epidemics that plague the world. The objective of this study was to identify the spatial distribution of potential years of life lost (PYLL) due to accidents involving motorcycles in the state of Sao Paulo, Brazil. DESIGN AND SETTING: Ecological and exploratory study conducted in Sao Paulo. METHODS: Data on deaths among individuals aged 20-39 years due to motorcycle accidents (V20-V29 in the International Classification of Diseases, 10th revision) in the state of Sao Paulo in the years 2007-2011 were obtained from DATASUS. These data were stratified into a database for the 63 microregions of this state, according to where the motorcyclist lived. PYLL rates per 100,000 inhabitants were calculated. Spatial autocorrelations were estimated using the Global Moran index (IM). Thematic, Moran and Kernel maps were constructed using PYLL rates for the age groups of 20-29 and 30-39 years. The Terraview 4.2.2 software was used for the analysis. RESULTS: The PYLL rates were 486.9 for the ages of 20-29 years and 199.5 for 30-39 years. Seventeen microregions with high PYLL rates for the age group of 20-29 years were identified. There was higher density of these rates on the Kernel map of the southeastern region (covering the metropolitan region of Sao Paulo). There were no spatial autocorrelations between rates. CONCLUSIONS: The data presented in this study identified microregions with high accident rates involving motorcycles and microregions that deserve special attention from regional managers and traffic experts. PMID- 29340502 TI - Recurrence of retroperitoneal localized perivascular epithelioid cell tumor two years after initial diagnosis: case report. AB - CONTEXT: Perivascular epithelioid cell tumors (PEComas) are rare mesenchymal tumors. Adjuvant radiotherapy and/or chemotherapy are administered according to the patient's clinical characteristics. CASE REPORT: A 42-year-old female patient was operated to treat a retroperitoneal mass. The diagnosis was established as PEComa with benign behavior. Two years after the diagnosis, chest and abdominal computed tomography scans showed intra-abdominal recurrence and lymphangioleiomyomatosis in the lung. Treatment with everolimus was started. The disease stabilized in the third month of treatment, according to the response evaluation criteria in solid tumors. CONCLUSION: PEComas are tumors with unpredictable behavior. Therefore, these patients require long-term follow-up, even in cases of correct diagnosis and benign PEComa. PMID- 29340503 TI - Epidemiological situation of acquired immunodeficiency syndrome (AIDS)-related mortality in a municipality in northeastern Brazil. A retrospective cross sectional study. AB - CONTEXT AND OBJECTIVE: The number of acquired immunodeficiency syndrome (AIDS) related deaths covers different segments of the population differently, making monitoring of this mortality essential. The aim of this study was to describe the epidemiological situation of AIDS-related mortality in a municipality in the northeastern region of Brazil. DESIGN AND SETTING: Retrospective cross-sectional study based on data from death certificates in the mortality information system of the Health Information Center, Municipal Health Foundation, Brazil. METHODS: Between 2003 and 2013, we investigated death certificates on which AIDS-related mortality was reported. Sociodemographic data, year, place, type of establishment where death occurred and underlying and associated causes that led to AIDS related death were described. The Mann-Kendall test was used to verify the growth trend of the standardized mortality rate over the period studied. RESULTS: Among the 1,066 AIDS-related deaths, 69.7% were among men; 47.2% of the individuals were 28-41 years of age, 32.7% had had 4-7 years of schooling, 66.9% were pardos (mixed race), 55.7% were unmarried and 15.3% were housekeepers. Hospitals were the site of 97% of the deaths, and 91% occurred at public hospitals. Respiratory failure was the main cause of death. The prevalence of infectious and parasitic diseases was 99.0%. AIDS-related mortality increased by 160% over the period studied, from 5.5/100,000 inhabitants in 2003 to 14.3/100,000 in 2013. CONCLUSION: In the Brazilian municipality studied here, AIDS-related mortality was most prevalent among men and young adults of lower socioeconomic level. Over the period studied, the mortality rate increased. PMID- 29340505 TI - [Anthropology of Health in the Americas: Contextualizations and suggestions]. PMID- 29340504 TI - Strategies to optimize MEDLINE and EMBASE search strategies for anesthesiology systematic reviews. An experimental study. AB - BACKGROUND: A high-quality electronic search is essential for ensuring accuracy and comprehensiveness among the records retrieved when conducting systematic reviews. Therefore, we aimed to identify the most efficient method for searching in both MEDLINE (through PubMed) and EMBASE, covering search terms with variant spellings, direct and indirect orders, and associations with MeSH and EMTREE terms (or lack thereof). DESIGN AND SETTING: Experimental study. UNESP, Brazil. METHODS: We selected and analyzed 37 search strategies that had specifically been developed for the field of anesthesiology. These search strategies were adapted in order to cover all potentially relevant search terms, with regard to variant spellings and direct and indirect orders, in the most efficient manner. RESULTS: When the strategies included variant spellings and direct and indirect orders, these adapted versions of the search strategies selected retrieved the same number of search results in MEDLINE (mean of 61.3%) and a higher number in EMBASE (mean of 63.9%) in the sample analyzed. The numbers of results retrieved through the searches analyzed here were not identical with and without associated use of MeSH and EMTREE terms. However, association of these terms from both controlled vocabularies retrieved a larger number of records than did the use of either one of them. CONCLUSIONS: In view of these results, we recommend that the search terms used should include both preferred and non-preferred terms (i.e. variant spellings and direct/indirect order of the same term) and associated MeSH and EMTREE terms, in order to develop highly-sensitive search strategies for systematic reviews. PMID- 29340507 TI - [Health care practices among people living with diabetes: an anthropological, ethnographical approach with a gender perspective]. AB - Diabetes, a disease that constitutes a syndrome, is growing more quickly in societies with precarious living and working conditions. Daily care practices are fundamental in preventing it from progressing. This work shows the heuristic and interpretative value and the explanatory potential of an ethnographic approach and a gender perspective in the analysis of care practices in a group of elder adults living with type 2 diabetes. The research was carried out with diabetes group participants and health professionals in a primary healthcare center in Jose Leon Suarez, municipality of San Martin, province of Buenos Aires, during the period 2013-2016. We identified and analyzed care activities (including self care) that resulted from the authoritative knowledge of the group in connection with the healthcare center professionals. Such individual, group and collective actions generate care logics that promote care of oneself. The methodological proposal of this study is framed within the tradition of collaborative fieldwork. PMID- 29340506 TI - [On ethnographic positions in the anthropology of health in South America]. AB - Ethnographies on health issues in populations that live in conditions of poverty, inequality and segregation have proliferated over the last decades in South America. The aim of this article is to problematize - preliminarily - certain patterns in the positions and relations of ethnographers with respect to study subjects and populations during their fieldwork and in the writing of study results. This paper examines the relationships between these ethnographic positions and the dominant theoretical perspectives in the region. In addition, this article explores briefly the resolution power as well as the sensibilities, theoretical maps, and meanings of such positions in light of power logics, symbolic economies, and diverse manners of accumulation by dispossession in this geographical area. PMID- 29340508 TI - [Space, time and power in hospital health care: Contributions based on the ethnography of an obstetric center]. AB - This paper presents the results of an ethnographic study of an obstetric center within a hospital of Greater Buenos Aires and an analysis of the spatio-temporal dimension of hospital care. The fieldwork, carried out between 2007 and 2011, followed the everyday dynamics of the hospital and included observation in the obstetrics unit (waiting areas, the obstetric center where births and emergencies receive care, and the ambulatory care, ultrasound, and hospitalization rooms, among others) as well as spaces such as the appointments and statistics offices, the office of social services, the central hall, the pharmacy, and hallway waiting areas. Interviews were carried out with department heads, obstetricians, nurses, social workers, staff of the laboratory and the appointment and statistics offices, volunteers and patients. In this way, the article analyzes the medical-bureaucratic routines in the admission and hospitalization of women in the obstetrics center; the disputes, transactions and negotiations occurring among professionals, patients and families; the delimitation of spaces; and the temporal sequences and hierarchies involved in the passage from the "outside" to the "inside" of the hospital. PMID- 29340509 TI - Uncovering a tragic flaw in revolutionary health policies: From health and communicative inequities to communicative justice in health. AB - This article analyzes a contradiction facing efforts by left-leaning governments in Latin America to transform health into a fundamental social right. Policies and practices that confront health inequities generally fail to address health/communicative inequities, hierarchical distributions of rights to shape what counts as legitimate knowledge of health. This ethnographic analysis focuses on an epidemic of a mysterious disease - identified clinically as bat-transmitted rabies - in the Delta Amacuro rainforest of Venezuela in 2007-2008, tracing how parents who lost 1-3 children faced acute health/communicative inequities in clinical settings, epidemiological investigations, work with healers, news coverage, health policy, and health communication. Taking as a point of departure rainforest residents' demands for communicative justice in health, the analysis draws on Menendez's notion of autoatencion in exploring how health/communicative labor is co-produced with the labor of care. PMID- 29340510 TI - [Tradition, improvisation and modernity in Yucatecan Mayan shamanism: The suhuy art of Juan Cob, h-men of Yaxcaba]. AB - Through the history of a Yucatecan Mayan shaman (h-men), this article analyzes the changes and continuities in Yucatecan shamanism and, more specifically, in one of its main functions: tsak, healing. The results presented here are part of fieldwork carried out over 40 years, from 1976 to 2016. The author lives in a community in central Yucatan (Tabi, Sotuta) and has carried out a number of research studies on Yucatecan shamanism in communities in the Mexican states of Yucatan, Campeche and Quintana Roo. Juan Cob, h-men of Yaxcaba, is not only an informant but also the author's friend and neighbor, with whom he has created a number of films. PMID- 29340511 TI - [A critical examination of public policies related to indigenous health, traditional medicine, and interculturality in Mexico (1990-2016)]. AB - Over the last 26 years, the Mexican government has developed a number of activities and discourses around what has been called "intercultural health," directed especially at indigenous peoples in Mexico (some 62, according to linguistic criteria). In this way, the government has built health care institutions (rural centers, clinics, and hospitals) in states like Puebla, Nayarit, Oaxaca, Chiapas, Queretaro, and Jalisco, proposing the implementation of cultural pertinence indicators (which are minimal and inadequate). Nevertheless, the health conditions among indigenous populations and the quality of health care provided by public institutions continue to be precarious in terms of human and material resources (health personnel, drugs, etc.) and discriminatory with respect to the form and content of the provided services. This paper describes some of the governmental interventions that purport to be institutional improvements in the field of interculturality, but that actually represent the continuity of arbitrary and exclusive policies. PMID- 29340512 TI - Articulation between health services and "indigenous medicine": Anthropological reflections on policies and reality in Brazil. AB - This paper contributes to the dialogue between the social sciences and social medicine in Latin America by exploring therapeutic pluralism in indigenous health policies and services in Brazil. It reviews recent anthropological research, concepts and current debates to critically examine Brazilian indigenous health policy and its concept of "differentiated care," which proposes articulation between official health practices and indigenous therapies. A number of contradictions and tensions are present in the structural organizational of the indigenous health subsystem at the national level and in the daily practices of health teams at the local level. Guided by the hegemonic ideology of biomedicine, health professionals fail to recognize the dynamics and agency expressed in indigenous health practices. PMID- 29340513 TI - [Family networks and the role of men in maternal health care among Mexican indigenous women]. AB - This article reflects on maternal mortality among indigenous women in Mexico and the changes that have occurred in care practices during pregnancy and childbirth. Through ethnographic qualitative research in the state of Guerrero between 2008 and 2012, which included over a year of fieldwork as well as in-depth interviews and surveys with indigenous women, the article analyzes the increasing medicalization of reproduction, the role of family networks in gestation, delivery and postpartum care, and the participation of men during childbirth, in dialogue with other anthropological research on maternal health in Mexico. Medical anthropology allows us to understand the medicalization of reproduction in indigenous contexts and identify the tension that characterizes family care networks, which both operate as protectors and mobilizers in seeking care and reproduce power relations marked by gender and generational conditions. PMID- 29340514 TI - Racial i(nter)dentification: The racialization of maternal health through the Oportunidades program and in government clinics in Mexico. AB - Using an ethnographic approach, this article examines the role of racialization in health-disease-care processes specifically within the realm of maternal health. It considers the experiences of health care administrators and providers, indigenous midwives and mothers, and recipients of conditional cash transfers through the Oportunidades program in Mexico. By detailing the delivery of trainings of the Mexican Social Security Institute (IMSS) [Instituto Mexicano del Seguro Social] for indigenous midwives and Oportunidades workshops to indigenous stipend recipients, the article critiques the deployment of "interculturality" in ways that inadvertently re-inscribe inequality. The concept of racial i(nter)dentification is offered as a way of understanding processes of racialization that reinforce discrimination without explicitly referencing race. Racial i(nter)dentification is a tool for analyzing the multiple variables contributing to the immediate mental calculus that occurs during quotidian encounters of difference, which in turn structures how individuals interact during medical encounters. The article demonstrates how unequal sociohistorical and political conditions and differential access to economic resources become determinants of health. PMID- 29340515 TI - [Illegitimate patients: Undocumented immigrants' access to health care in Chile]. AB - In recent decades, Chile has become a destination for immigrants from other South American countries, which has significantly impacted public services - particularly the public health system - at the economic, social, and cultural levels. The aim of this paper is to provide substantiated information on issues concerning undocumented immigrants' access to health care in Chile. A qualitative methodology, fundamentally an ethnography of the clinical setting, was used. Results were then analyzed in relation to theories of power asymmetries and interethnic relations. The research results highlight the lack of compliance with existing regulations and the exercise of discretionary personal judgment as barriers to access. It is concluded that in Chile immigrants in general, and undocumented immigrants in particular, are considered to be illegitimate patients. PMID- 29340516 TI - [Screening program for cervical cancer: public policies and experiences of actors who implement the program in the state of Veracruz, Mexico]. AB - The aim of this article is to analyze the way in which the Screening Program for Cervical Cancer is carried out in a dysplasia clinic and related health centers in the state of Veracruz, through the representations and practices of the social actors who implement the program. In order to do so, in-depth interviews and observations of the practices of health service providers were carried out during different periods over the course of three years, from 2009 to 2011. Through the information obtained, the article explores the difficulties, achievements and results of this program as part of a public policy. Although a priority of public health policy is to see the whole population benefit from preventive and curative health care services, evidence shows that marginalized populations are not benefitted by such programs; such information does not however seem to permeate popular and medical knowledge. PMID- 29340517 TI - [Indigenous peoples, HIV and public policy in Latin America: an exploration of the current situations of epidemiological prevalence, prevention, care and timely treatment]. AB - This article aims to describe and analyze the situations of epidemiological prevalence, prevention, care and treatment of HIV in indigenous populations of Latin America. In order to do so, 304 published materials - including declarations, public policy and health program protocols, case studies and literature reviews with local, national and regional scopes - were identified, classified and analyzed. The differential social vulnerability to HIV infection and the inequity in health care access among indigenous populations can be attributed to the juxtaposition of factors such as structural violence, gender, racism, and discrimination due health condition (living with HIV) as well as the subordinated position of indigenous peoples in societies stratified not only socially and economically but also ethnically and culturally. The few studies done in the region on epidemiological prevalence, morbidity and mortality that are disaggregated by ethnicity reveal alarming data highlighting the need for further information on the epidemic in this population so as to address its repercussions in terms of prevention, care and timely follow-up. PMID- 29340518 TI - Rankl expression predicts poor prognosis in gastric cancer patients: results from a retrospective and single-center analysis. AB - The receptor activator of nuclear factor kappaB ligand (RANKL)/RANK pathway plays an important role in the prognosis of several solid tumor types, but its role in gastric cancer prognosis has been poorly characterized. A total of 116 gastric cancer patients who underwent surgical resection were enrolled in this study. Expressions of RANKL and RANK in gastric cancer tissues were detected using immunohistochemical staining. Thirty-eight patients (33%) showed a high level of RANKL expression and 61 patients (53%) showed a high level of RANK expression. There was a positive correlation between expressions of RANKL and RANK (P=0.014, r=0.221). A high level of RANKL expression indicated shorter overall survival (OS) (P=0.008), and was associated with a higher pathological tumor/lymph node/metastasis (pTNM) stage (P=0.035), while no significant correlation was detected between RANK expression and clinicopathological parameters. RANKL also predicted poor prognosis in patients with high RANK expression (P=0.008) and Bormann's type III/IV (P=0.002). Furthermore, RANKL expression correlated with pTNM stage according to high RANK expression (P=0.009), while no significance was found in patients with low RANK expression (P=1.000). Together, our results revealed that high expression of RANKL could predict worse outcomes in gastric cancer especially combined with RANK detection, and thereby this pathway could be a useful prognostic indicator of gastric cancer. PMID- 29340519 TI - Evaluating the current state of the art of Huntington disease research: a scientometric analysis. AB - Huntington disease (HD) is an incurable neurodegenerative disorder caused by a dominant mutation on the 4th chromosome. We aim to present a scientometric analysis of the extant scientific undertakings devoted to better understanding HD. Therefore, a quantitative study was performed to examine the current state-of the-art approaches that foster researchers' understandings of the current knowledge, research trends, and research gaps regarding this disorder. We performed literature searches of articles that were published up to September 2016 in the "ISI Web of ScienceTM" (http://apps.webofknowledge.com/). The keyword used was "Huntington disease". Of the initial 14,036 articles that were obtained, 7732 were eligible for inclusion in the study according to their relevance. Data were classified according to language, country of publication, year, and area of concentration. The country leader regarding the number of studies published on HD is the United States, accounting for nearly 30% of all publications, followed by England and Germany, who have published 10 and 7% of all publications, respectively. Regarding the language in which the articles were written, 98% of publications were in English. The first publication to be found on HD was published in 1974. A surge of publications on HD can be seen from 1996 onward. In relation to the various knowledge areas that emerged, most publications were in the fields of neuroscience and neurology, likely because HD is a neurodegenerative disorder. Publications written in areas such as psychiatry, genetics, and molecular biology also predominated. PMID- 29340520 TI - Analysis of serum microRNA expression in male workers with occupational noise induced hearing loss. AB - Occupational noise-induced hearing loss (ONIHL) is a prevalent occupational disorder that impairs auditory function in workers exposed to prolonged noise. However, serum microRNA expression in ONIHL subjects has not yet been studied. We aimed to compare the serum microRNA expression profiles in male workers of ONIHL subjects and controls. MicroRNA microarray analysis revealed that four serum microRNAs were differentially expressed between controls (n=3) and ONIHL subjects (n=3). Among these microRNAs, three were upregulated (hsa-miR-3162-5p, hsa-miR 4484, hsa-miR-1229-5p) and one was downregulated (hsa-miR-4652-3p) in the ONIHL group (fold change >1.5 and Pbon value <0.05). Real time quantitative PCR was conducted for validation of the microRNA expression. Significantly increased serum levels of miR-1229-5p were found in ONIHL subjects compared to controls (n=10 for each group; P<0.05). A total of 659 (27.0%) genes were predicted as the target genes of miR-1229-5p. These genes were involved in various pathways, such as mitogen-activated protein kinase (MAPK) signaling pathway. Overexpression of miR-1229-5p dramatically inhibited the luciferase activity of 3' UTR segment of MAPK1 (P<0.01). Compared to the negative control, HEK293T cells expressing miR 1229-5p mimics showed a significant decline in mRNA levels of MAPK1 (P<0.05). This preliminary study indicated that serum miR-1229-5p was significantly elevated in ONIHL subjects. Increased miR-1229-5p may participate in the pathogenesis of ONIHL through repressing MAPK1 signaling. PMID- 29340521 TI - Organic solvent exposure and contrast sensitivity: comparing men and women. AB - The goal of this study was to compare the visual contrast sensitivity (CS) of men and women exposed and not exposed to organic solvents. Forty-six volunteers of both genders aged between 18 and 41 years (mean+/-SD=27.72+/-6.28) participated. Gas station attendants were exposed to gas containing 46.30 ppm of solvents at a temperature of 304+/-274.39 K, humidity of 62.25+/-7.59% and ventilation of 0.69+/-0.46 m/s (a passive gas chromatography-based sampling method was used considering the microclimate variables). Visual CS was measured via the psychophysical method of two-alternative forced choice using vertical sinusoidal gratings with spatial frequencies of 0.2, 0.5, 1.0, 2.0, 5.0, 10.0, and 16.0 cpd (cycles per degree) and an average luminance of 34.4 cd/m2. The results showed that visual CS was significantly lower (P<0.05) in the following groups: i) exposed men compared to unexposed men at frequencies of 0.2, 0.5, 1.0, and 2.0 cpd; ii) exposed women compared to unexposed women at a frequency of 5.0 cpd; and iii) exposed women compared to exposed men at a frequency of 0.5 cpd, even at exposures below the tolerance limit (300 ppm). These results suggest that the visual CS of exposed men was impaired over a wider range of spatial frequencies than that of exposed women. This difference may have been due to the higher body fat content of women compared to that of men, suggesting that body fat in women can serve as a protective factor against neurotoxic effects. PMID- 29340522 TI - Penile microvascular endothelial function in hypertensive patients: effects of acute type 5 phosphodiesterase inhibition. AB - The primary aim of this study was to evaluate penile endothelial microvascular function in patients with primary arterial hypertension and age-matched normotensive subjects using laser speckle contrast imaging (LSCI). Additionally, we analyzed the acute penile microvascular effects induced by oral phosphodiesterase type 5 inhibitor (sildenafil; SIL) administration. Endothelium dependent microvascular reactivity was evaluated in the penises and forearms of hypertensive patients (aged 58.8+/-6.6 years, n=34) and age-matched healthy volunteers (n=33) at rest and 60 min following oral SIL (100 mg) administration. LSCI was coupled with cutaneous acetylcholine (ACh) iontophoresis using increasing anodal currents. Basal penile cutaneous vascular conductance (CVC) values were not significantly different between control subjects and hypertensive individuals. Penile CVC values increased significantly after SIL administration in control (P<0.0001) and hypertensive (P<0.0001) subjects. Peak CVC values were not different between the two groups during penile ACh iontophoresis before SIL administration (P=0.2052). Peak CVC values were higher in control subjects than in hypertensive subjects after SIL administration (P=0.0427). Penile endothelium dependent microvascular function is, to some extent, preserved in patients presenting with primary arterial hypertension under effective anti-hypertensive treatment. LSCI may be a valuable non-invasive tool for the evaluation of penile vascular responses to phosphodiesterase type 5 inhibitor. PMID- 29340523 TI - A case of severe glutathione synthetase deficiency with novel GSS mutations. AB - Glutathione synthetase deficiency (GSSD) is a rare inborn error of glutathione metabolism with autosomal recessive inheritance. The severe form of the disease is characterized by acute metabolic acidosis, usually present in the neonatal period with hemolytic anemia and progressive encephalopathy. A case of a male newborn infant who had severe metabolic acidosis with high anion gap, hemolytic anemia, and hyperbilirubinemia is reported. A high level of 5-oxoproline was detected in his urine and a diagnosis of generalized GSSD was made. DNA sequence analysis revealed the infant to be compound heterozygous with two mutations, c.738dupG in exon 8 of GSS gene resulting in p.S247fs and a repetitive sequence in exon 3 of GSS gene. Treatment after diagnosis of GSSD included supplementation with antioxidants and oral sodium hydrogen bicarbonate. However, he maintained a variable degree of metabolic acidosis and succumbed shortly after his parents requested discontinuation of therapy because of dismal prognosis and medical futility when he was 18 days old. PMID- 29340524 TI - Efficacy of removal of cariogenic bacteria and carious dentin by ablation using different modes of Er:YAG lasers. AB - The primary objective of this in vitro study was to evaluate the efficiency of removal of cariogenic bacteria and carious dentin by ablation using two lasers: fluorescence-feedback controlled (FFC) Er:YAG laser and different pulses of Er:YAG laser based on variable square pulse technology (VSPt). The secondary objective was to measure the temperature during laser ablation of carious tissue. Seventy-two extracted human molars were used in this study. Sixty teeth with carious dentin were randomly divided into four experimental groups according to the treatment for caries removal: group 1: 400 us (FFC group); group 2: super short pulse (SSP group, 50 us pulse); group 3: medium short pulse (MSP group, 100 us pulse); group 4: short pulse (SP group, 300 us pulse) and one positive control group with no treatment. Twelve teeth without carious lesion were used as a negative control group. After caries removal, swabs were taken with cotton pellets and real-time PCR analysis was performed. During caries ablation, a thermal infrared camera was used to measure the temperature changes. In all experimental groups, specimens were free of bacterial contamination after the treatment. In the SSP, MSP and SP groups, temperatures measured during caries ablation were significantly higher compared to temperatures in the FFC group (P<0.001). In this in vitro study, laser treatment for removal of carious dentin and cariogenic bacteria was an efficient treatment modality without causing excessive temperatures that might adversely affect pulp vitality. PMID- 29340525 TI - Time collection and storage conditions of lipid profile. AB - The stability of samples is crucial for getting reliable concentrations of many analytes, including lipid profile. Thus, the goal of this study was to analyze lipid profile under different storage and temperature conditions. This was a prospective study with 809 patients of both genders. Total cholesterol, triglycerides, high-density lipoprotein cholesterol, low density lipoprotein cholesterol and non-high-density lipoprotein were measured within 1 h from collection at room temperature, after 2-3 h of refrigeration (8 degrees C) and after 4-5 h at room temperature. The processing time and storage conditions did not affect the analytes measured. These findings are important for multicenter studies, because of the difficulties related to centrifugation and freezing of samples immediately after collection. PMID- 29340526 TI - Simulating the behavior of patients who leave a public hospital emergency department without being seen by a physician: a cellular automaton and agent based framework. AB - The objective of this study was to develop an agent based modeling (ABM) framework to simulate the behavior of patients who leave a public hospital emergency department (ED) without being seen (LWBS). In doing so, the study complements computer modeling and cellular automata (CA) techniques to simulate the behavior of patients in an ED. After verifying and validating the model by comparing it with data from a real case study, the significance of four preventive policies including increasing number of triage nurses, fast-track treatment, increasing the waiting room capacity and reducing treatment time were investigated by utilizing ordinary least squares regression. After applying the preventing policies in ED, an average of 42.14% reduction in the number of patients who leave without being seen and 6.05% reduction in the average length of stay (LOS) of patients was reported. This study is the first to apply CA in an ED simulation. Comparing the average LOS before and after applying CA with actual times from emergency department information system showed an 11% improvement. The simulation results indicated that the most effective approach to reduce the rate of LWBS is applying fast-track treatment. The ABM approach represents a flexible tool that can be constructed to reflect any given environment. It is also a support system for decision-makers to assess the relative impact of control strategies. PMID- 29340527 TI - Cardiac protein expression patterns are associated with distinct inborn exercise capacity in non-selectively bred rats. AB - In the present study, we successfully demonstrated for the first time the existence of cardiac proteomic differences between non-selectively bred rats with distinct intrinsic exercise capacities. A proteomic approach based on two dimensional gel electrophoresis coupled to mass spectrometry was used to study the left ventricle (LV) tissue proteome of rats with distinct intrinsic exercise capacity. Low running performance (LRP) and high running performance (HRP) rats were categorized by a treadmill exercise test, according to distance run to exhaustion. The running capacity of HRPs was 3.5-fold greater than LRPs. Protein profiling revealed 29 differences between HRP and LRP rats (15 proteins were identified). We detected alterations in components involved in metabolism, antioxidant and stress response, microfibrillar and cytoskeletal proteins. Contractile proteins were upregulated in the LVs of HRP rats (alpha-myosin heavy chain-6, myosin light chain-1 and creatine kinase), whereas the LVs of LRP rats exhibited upregulation in proteins associated with stress response (aldehyde dehydrogenase 2, alpha-crystallin B chain and HSPbeta-2). In addition, the cytoskeletal proteins desmin and alpha-actin were upregulated in LRPs. Taken together, our results suggest that the increased contractile protein levels in HRP rats partly accounted for their improved exercise capacity, and that proteins considered risk factors to the development of cardiovascular disease were expressed in higher amounts in LRP animals. PMID- 29340528 TI - Synthesis and anti-myocarditis activity in a multifunctional lanthanide microporous metal-organic framework with 1D helical chain building units. AB - A new microporous lanthanide metal-organic framework, {[Yb(BTB)(H2O) (DEF)2}n (1, DEF=N,N-Diethylformamide), with 1D nano-sized channels has been constructed by bridging helical chain secondary building units with 1,3,5-benzenetrisbenzoic acid (H3BTB) ligand. Structural characterization suggests that this complex crystallizes in the hexagonal space group P6122 and possesses 1D triangular channels with coordinated water molecules pointing to the channel center. In addition, anti-myocarditis properties of compound 1 were evaluated in vivo. The results showed that compound 1 can improve hemodynamic parameters of, and it may be a good therapeutic option for heart failure in the future. PMID- 29340529 TI - Association between syndecan-1 and renal function in adolescents with excess weight: evidence of subclinical kidney disease and endothelial dysfunction. AB - Excess weight (overweight and obesity) is associated with kidney and cardiovascular disease. The aim of this study was to investigate the association between syndecan-1 and renal function among adolescents with excess weight. A total of 56 students from a public school at Fortaleza, CE, Brazil, were investigated. The adolescents were submitted to anthropometric evaluation, including weight, height, blood pressure and body mass index. Blood and urine samples were collected for the determination of serum lipids (total cholesterol, high density lipoprotein cholesterol, low density lipoprotein cholesterol, triglycerides), and the endothelial injury biomarker syndecan-1. Participants' mean age was 16+/-1 years (range 14-19 years), and 68% were females. Overweight was observed in 4 cases (7.1%) and obesity in 7 (12.5%). Changes in serum lipid levels were more frequent in the overweight group. A positive correlation between syndecan-1 and serum creatinine (r=0.5, P=0.001) and triglycerides (r=0.37, P=0.004), and a negative correlation with glomerular filtration rate (r=-0.33, P=0.02) were found. These findings suggest that adolescents with excess weight present incipient changes at the cellular level that make them more vulnerable to the development of kidney and cardiovascular diseases. PMID- 29340530 TI - The use of biosimilar medicines in oncology - position statement of the Brazilian Society of Clinical Oncology (SBOC). AB - A biosimilar is a biologic product that is similar to a reference biopharmaceutical product, the manufacturing process of which hinders the ability to identically replicate the structure of the original product, and therefore, it cannot be described as an absolute equivalent of the original medication. The currently available technology does not allow for an accurate copy of complex molecules, but it does allow the replication of similar molecules with the same activity. As biosimilars are about to be introduced in oncology practice, these must be evaluated through evidence-based medicine. This manuscript is a position paper, where the Brazilian Society of Clinical Oncology (SBOC) aims to describe pertinent issues regarding the approval and use of biosimilars in oncology. As a working group on behalf of SBOC, we discuss aspects related to definition, labeling/nomenclature, extrapolation, interchangeability, switching, automatic substitution, clinical standards on safety and efficacy, and the potential impact on financial burden in healthcare. We take a stand in favor of the introduction of biosimilars, as they offer a viable, safe, and cost-effective alternative to the biopharmaceutical products currently used in cancer. We hope this document can provide valuable information to support therapeutic decisions that maximize the clinical benefit for the thousands of cancer patients in Brazil and can contribute to expedite the introduction of this new drug class in clinical practice. We expect the conveyed information to serve as a basis for further discussion in Latin America, this being the first position paper issued by a Latin American Oncology Society. PMID- 29340531 TI - Prenatal development of the sound transmitting apparatus in different embryonic stages of Malpolon monsspesulanus (squamata-serpentes). AB - The developmental investigation of sound transmitting apparatus is important in understanding the ontogenetic processes behind morphological diversity. The development of sound conducting apparatus was studied in Montpellier snake; Malpolon monspessulanus at 6.5, 7.2, 8.3 and 9.3 cm total body lengths using light microscopy study. The columella auris firstly appeared as undifferentiated rod shape mesenchymal cells. As the growth proceeded, it chondrified and differentiates into two main parts. In addition, the viscerocranium components which participate in formation of sound transmitting apparatus undergo critical organization. In more advanced stages, procartilagenous stylohyal chondrified and fuse with the well organized quadrate. These data considered as a base for functional and molecular mechanisms of sound transmitting apparatus studies and identification of diseases that may infect them. PMID- 29340532 TI - Effects of light-dark cycle on the spatial distribution and feeding activity of fish larvae of two co-occurring species (Pisces: Hypophthalmidae and Sciaenidae) in a Neotropical floodplain lake. AB - Most studies on mechanisms regulating fish larvae processes have focused on assessing the isolated effects of food distribution and feeding behavior. However, in natural ecosystems, fish larvae may strongly interact with zooplankton organisms in an array of complex, direct and indirect interdependencies. This study analyzed the spatial distribution, diet and feeding behavior of early stages of Hypophthalmus edentatus and Plagioscion squamosissimus, two fish species co-occurring in an isolated floodplain lake, during the light-dark cycle. Larvae fed more actively during dark periods (dusk and night) when they migrated toward the surface of the lake, and remained on the bottom and fed less during light periods (day and dawn). Cladocerans represented the most frequent prey in the diet of H. edentatus larvae. In turn, P. squamosissimus larvae initially preferred cladocerans and, as they developed, included calanoid copepods in the diet. Significant differences were detected in the frequencies of food items consumed during larval development, which could be related to a better ability of the most developed stages to explore the environment in search of other prey. PMID- 29340533 TI - More than two decades after the introduction of Limnoperna fortunei (Dunker 1857) in La Plata Basin. AB - The golden mussel, Limnoperna fortunei, is an Asian freshwater bivalve introduced in South America in the beginning of the 1990's, probably through ballast water releases in La Plata River estuary. It dispersed north through Parana, Uruguay and Paraguay Rivers. The study evaluated the macroscale (18 degrees to 34 degrees S; 45 degrees to 60 degrees W) distribution of L. fortunei (larval stages) in the main rivers and reservoirs of La Plata Basin. Samplings were performed through 68 um vertical plankton net hauls. Limnological variables were simultaneously determined. Larvae abundance correlated significantly with oxygen (positively) in summer, with temperature (positively) in winter and with total phosphorus and total nitrogen (both negatively) in winter. We expected densities to decrease towards north (latitudinal gradient) and increase in lentic conditions (reservoirs). Despite maximum density was found near the introduction point (La Plata River) similar value was also observed 2,000 km north (Paraguay River). The first hypothesis was refuted. The second hypothesis was partially accepted. Abundances were consistently higher in summer. Higher trophic conditions and fast flow seem to inhibit population growth. Food resources (chlorophyll a) locally influenced temporal variation. Limnoperna fortunei is widely distributed in La Plata basin, reaching high larval densities superior to 10,000 ind. m-3, in all major sub-basins. The species exhibits a high intrinsic dispersal ability (free planktonic larvae), wide tolerance to environmental factors and dispersion is potentialized by natural dispersion processes (e.g. fauna displacement) and human facilitation (e.g. commercial navigation). PMID- 29340534 TI - What every intensivist should know about intensive care unit admission criteria. PMID- 29340535 TI - Prevalence of cytomegalovirus disease in kidney transplant patients in an intensive care unit. AB - OBJECTIVES: To define the frequency of cytomegalovirus disease among kidney transplant patients in an intensive care unit in which this complication was suspected and to identify predisposing factors and their possible impact on clinical outcome. METHODS: Retrospective observational study in which kidney transplant patients over the age of 18 years were hospitalized for any reason in an intensive care unit with at least one collection of samples to test for the presence of antigenemia or cytomegalovirus via polymerase chain reaction during hospitalization. Cytomegalovirus disease was defined as positive antigenemia or polymerase chain reaction above 500 copies/mL in the presence of symptoms and in the appropriate clinical setting, as judged by the attending physician. RESULTS: A total of 99 patients were included (age: 53.4 +/- 12.8 years, 71.6% male). Cytomegalovirus disease was diagnosed in 39 patients (39.4%). Respiratory symptoms (51%), non-specific clinical worsening (20%) or gastrointestinal symptoms (14%) were the main reasons for exam collection. Transplant time was lower in those with cytomegalovirus disease than in those without this diagnosis (6.5 months and 31.2 months, p = 0.001), along with pulse therapy in the last 6 months (41% and 16.9%, p = 0.008) and previous use of thymoglobulin in the last year (35.9% and 6.8%, p < 0.001). In the logistic regression model, only the transplant time and the use of thymoglobulin were associated with a higher frequency of cytomegalovirus. There was no difference in clinical evolution between patients with and without cytomegalovirus disease. CONCLUSION: In kidney transplant patients suspected of cytomegalovirus disease, the prevalence was high. Transplant time less than 6 months, and the use of thymoglobulin in the last year should increase the intensivist's suspicion for this complication. PMID- 29340536 TI - Assessment of PIM-2 performance among surgical patients with heart disease and correlation of results with RACHS-1. AB - OBJECTIVE: To assess the performance of the Pediatric Index of Mortality (PIM) 2 and the Risk Adjustment for Congenital Heart Surgery (RACHS) in the postoperative period of congenital heart disease patients. METHODS: Retrospective cross sectional study. Data were collected from patient records to generate the scores and predictions using recommended techniques, demographic data and outcomes. The Mann-Whitney test, Hosmer-Lemeshow test, standardized mortality rate, area under the receiver operating characteristic (ROC) curve, chi square test, Poisson regression with robust variance and Spearman's test were used for statistical analysis. RESULTS: A total of 263 patients were evaluated, and 72 died (27.4%). These patients presented significantly higher PIM-2 values than survivors (p < 0.001). In the RACHS-1 classification, mortality was progressively higher according to the complexity of the procedure, with a 3.24-fold increase in the comparison between groups 6 and 2. The area under the ROC curve for PIM-2 was 0.81 (95%CI 0.75 - 0.87), while for RACHS-1, it was 0.70 (95%CI 0.63 - 0.77). The RACHS presented better calibration power in the sample analyzed. A significantly positive correlation was found between the results of both scores (rs = 0.532; p < 0.001). CONCLUSION: RACHS presented good calibration power, and RACHS-1 and PIM 2 demonstrated good performance with regard to their discriminating capacities between survivors and non-survivors. Moreover, a positive correlation was found between the results of the two risk scores. PMID- 29340537 TI - Bedside ultrasound is a practical measurement tool for assessing muscle mass. AB - OBJECTIVE: To evaluate the intra- and inter-reliability and the ease of measuring the quadriceps muscle thickness using bedside ultrasound. METHODS: This is a prospective, observational study. The assessment of quadriceps muscle thickness was performed at two reference points and was quantified using portable B-mode ultrasound in two healthy volunteers. For standardization of measurements and validation of image collections, the team was trained through theoretical and practical classes, with a 6-hour workload. RESULTS: A total of 112 images were examined by the coach and compared with the trainees. Pearson's correlation analysis found an excellent relationship between the coach and all trainees (R2 > 0.90). The best association was between the coach and the dietitians (R2: 0.99; p < 0.001), and the worst association was between the coach and the medical trainees (R2: 0.92; p < 0.001). In the Bland-Altman comparison, the highest error rate found between coach and trainees was 5.12% (95% confidence interval [CI] 3.64-12.37), and the lowest was 1.01% (95%CI 0.72 - 2.58); the highest bias of the values described was -0.12 +/- 0.19, and the lowest was -0.01 +/- 0.04. CONCLUSION: The data analyzed showed a good correlation between the measurements made by the coach and trainees, indicating that ultrasound of the quadriceps muscle is a viable and easily applicable tool. PMID- 29340538 TI - Autonomic nervous system monitoring in intensive care as a prognostic tool. Systematic review. AB - OBJECTIVE: To present a systematic review of the use of autonomic nervous system monitoring as a prognostic tool in intensive care units by assessing heart rate variability. METHODS: Literature review of studies published until July 2016 listed in PubMed/Medline and conducted in intensive care units, on autonomic nervous system monitoring, via analysis of heart rate variability as a prognostic tool (mortality study). The following English terms were entered in the search field: ("autonomic nervous system" OR "heart rate variability") AND ("intensive care" OR "critical care" OR "emergency care" OR "ICU") AND ("prognosis" OR "prognoses" OR "mortality"). RESULTS: There was an increased likelihood of death in patients who had a decrease in heart rate variability as analyzed via heart rate variance, cardiac uncoupling, heart rate volatility, integer heart rate variability, standard deviation of NN intervals, root mean square of successive differences, total power, low frequency, very low frequency, low frequency/high frequency ratio, ratio of short-term to long-term fractal exponents, Shannon entropy, multiscale entropy and approximate entropy. CONCLUSION: In patients admitted to intensive care units, regardless of the pathology, heart rate variability varies inversely with clinical severity and prognosis. PMID- 29340539 TI - The spectrum of cardiovascular effects of dobutamine - from healthy subjects to septic shock patients. AB - Dobutamine is the inotrope most commonly used in septic shock patients to increase cardiac output and correct hypoperfusion. Although some experimental and clinical studies have shown that dobutamine can improve systemic and regional hemodynamics, other research has found that its effects are heterogenous and unpredictable. In this review, we analyze the pharmacodynamic properties of dobutamine and its physiologic effects. Our goal is to show that the effects of dobutamine might differ between healthy subjects, in experimental and clinical cardiac failure, in animal models and in patients with septic shock. We discuss evidence supporting the claim that dobutamine, in septic shock, frequently behaves as a chronotropic and vasodilatory drug, without evidence of inotropic action. Since the side effects are very common, and the therapeutic benefits are unclear, we suggest that dobutamine should be used cautiously in septic shock. Before a definitive therapeutic decision, the efficacy and tolerance of dobutamine should be assessed during a brief time with close monitoring of its positive and negative side effects. PMID- 29340540 TI - Toxic epidermal necrolysis: a paradigm of critical illness. AB - Toxic epidermal necrolysis is an adverse immunological skin reaction secondary in most cases to the administration of a drug. Toxic epidermal necrolysis, Stevens Johnson syndrome, and multiform exudative erythema are part of the same disease spectrum. The mortality rate from toxic epidermal necrolysis is approximately 30%. The pathophysiology of toxic epidermal necrolysis is similar in many respects to that of superficial skin burns. Mucosal involvement of the ocular and genital epithelium is associated with serious sequelae if the condition is not treated early. It is generally accepted that patients with toxic epidermal necrolysis are better treated in burn units, which are experienced in the management of patients with extensive skin loss. Treatment includes support, elimination, and coverage with biosynthetic derivatives of the skin in affected areas, treatment of mucosal involvement, and specific immunosuppressive treatment. Of the treatments tested, only immunoglobulin G and cyclosporin A are currently used in most centers, even though there is no solid evidence to recommend any specific treatment. The particular aspects of the treatment of this disease include the prevention of sequelae related to the formation of synechiae, eye care to prevent serious sequelae that can lead to blindness, and specific immunosuppressive treatment. Better knowledge of the management principles of toxic epidermal necrolysis will lead to better disease management, higher survival rates, and lower prevalence of sequelae. PMID- 29340542 TI - Sepsis definitions. PMID- 29340541 TI - Safety criteria to start early mobilization in intensive care units. Systematic review. AB - Mobilization of critically ill patients admitted to intensive care units should be performed based on safety criteria. The aim of the present review was to establish which safety criteria are most often used to start early mobilization for patients under mechanical ventilation admitted to intensive care units. Articles were searched in the PubMed, PEDro, LILACS, Cochrane and CINAHL databases; randomized and quasi-randomized clinical trials, cohort studies, comparative studies with or without simultaneous controls, case series with 10 or more consecutive cases and descriptive studies were included. The same was performed regarding prospective, retrospective or cross-sectional studies where safety criteria to start early mobilization should be described in the Methods section. Two reviewers independently selected potentially eligible studies according to the established inclusion criteria, extracted data and assessed the studies' methodological quality. Narrative description was employed in data analysis to summarize the characteristics and results of the included studies; safety criteria were categorized as follows: cardiovascular, respiratory, neurological, orthopedic and other. A total of 37 articles were considered eligible. Cardiovascular safety criteria exhibited the largest number of variables. However, respiratory safety criteria exhibited higher concordance among studies. There was greater divergence among the authors regarding neurological criteria. There is a need to reinforce the recognition of the safety criteria used to start early mobilization for critically ill patients; the parameters and variables found might contribute to inclusion into service routines so as to start, make progress and guide clinical practice. PMID- 29340543 TI - COLOSTOMY CLOSURE: RISK FACTORS FOR COMPLICATIONS. AB - BACKGROUND: : The restoration of intestinal continuity is an elective procedure that is not free of complications; on the contrary, many studies have proven a high level of morbidity and mortality. It is multifactorial, and has factors inherent to the patients and to the surgical technique. AIM: : To identify epidemiological features of patients that underwent ostomy closure analyzing the information about the surgical procedure and its arising complications. METHOD: : It was realized a retrospective analysis of medical records of patients who underwent ostomy closure over a period of seven years (2009-2015). RESULTS: : A total of 39 patients were included, 53.8% male and 46.2% female, with mean age of 52.4 years. Hartmann's procedure and ileostomy were the mainly reasons for restoration of intestinal continuity, representing together 87%. Termino-terminal anastomosis was performed in 71.8% of cases, by using mainly the manual technique. 25.6% developed complications, highlighting anastomotic leakage; there were three deaths (7.6%). The surgical time, the necessity of ICU and blood transfusion significantly related to post-operative complications. CONCLUSION: : It was found that the majority of the patients were male, with an average age of 52 years. It was observed that the surgical time, the necessity of blood transfusion and ICU were factors significantly associated with complications. PMID- 29340544 TI - INTERESFINCTERIAL LIGATION OF FISTULA TRACT (LIFT) FOR PATIENTS WITH ANAL FISTULAS: A BRAZILIAN BI-INSTITUTIONAL EXPERIENCE. AB - BACKGROUND : The best treatment for anal fistula should extirpate infection and promote healing of the tract, whilst preserving the anal sphincter complex and full continence. AIM: To analyze the success rate after a modified technique for ligation of the intersphincteric fistula tract (LIFT) for patients with anal fistulas. METHODS: A prospective (observational cohort study) Brazilian bi institutional experience with a modified (ligation of the intersphincteric fistula tract without excision) LIFT technique was undertaken. A clinical database was settled for the following variables: age, gender, BMI, comorbidities, distance between external orifice and the anus, previous fistula surgery, type of fistula, operative time, intra- and postoperative complications, duration of follow-up, and success rate. RESULTS: Between November 2015 and January 2017, 38 patients with transsphincteric fistulas were operated on using the modified LIFT procedure. Seventeen (44.7%) were men. Median age was 41 (18 67) years. Median BMI was 26.4 (22-38) kg/m2. Five (13.2%) had undergone previous surgery. The fistula was transsphincteric in all cases. Median follow-up was 32 (range, 14-56) weeks. Success was observed in 30 (79%) patients. CONCLUSIONS: The LIFT technique without excision of the fistula tract proved to be safe and effective for transsphincteric anal fistulas. PMID- 29340545 TI - EFFECTS OF COLD ISCHEMIA TIME ON HEPATIC ALLOGRAFT FUNCTION. AB - BACKGROUND : Cold ischemia time is related to success of liver transplantation. AIM : To compare the impact of cold ischemia time on allografts locally collected to those collected distantly. METHODS : Were evaluated 83 transplantations. The patients were divided in two groups: those who received liver grafts collected from cities out of Curitiba (n=42) and locally (n=41). From the donors were compared: cause of death, days at ICU, cardiac arrest, vasoactive drugs, lab exams, gender, age, and BMI. Were compared the subsequent information of receptors: cold ischemia time, warm ischemia time, length of surgery, lab exams, etiology of cirrhosis, MELD score, age, gender, histology of graft, use of vasoactive drugs, and blood components transfusion. Were evaluated the correlation between cold ischemia time and lab results. RESULTS : The liver grafts collected from other cities were submitted to a longer cold ischemia time (500+/-145 min) compared to those locally collected (317,85+/-105 min). Donors from other cities showed a higher serum sodium level at donation (154+/-16 mEq/dl) compared to those from Curitiba (144+/-10 mEq/dl). The length of cold ischemia time was related to serum levels of ALT and total bilirubin. CONCLUSION : Liver grafts distantly collected underwent longer cold ischemia times, although it caused neither histologic injuries nor higher transfusion demands. There is a correlation between cold ischemia time and hepatic injury, translated by elevation of serum ALT and total bilirubin levels. PMID- 29340546 TI - PRE AND POSTOPERATIVE PH MONITORING AND WEIGHT LOSS ANALYSIS IN PATIENTS UNDERGOING GASTRIC PLICATION IN ASSOCIATION WITH FUNDOPLICATION. AB - BACKGROUND : Obese patients with gastroesophageal reflux disease with pathological pH monitoring result may benefit from surgical treatment which is based on the fundoplication technique in association with laparoscopic gastric plication. The Nissen surgery is the gold standard for surgical treatment of gastroesophageal reflux disease, whereas laparoscopic gastric plication is a restrictive surgery that consists of the invagination of the greater curvature, resulting in weight loss. AIM: To compare pre and postoperative pHmetry results and to evaluate weight loss in patients submitted to gastroplasty with fundoplication. METHOD: Sixteen patients with class I body mass index with symptoms of gastroesophageal reflux with changes of stomach pH and/or erosive esophagitis seen in endoscopy were selected The evaluation of the weight and 24-h pH monitoring was performed preoperatively and postoperatively. The weight, body mass index, percentage of excess weight loss and DeMeester score of patients that underwent the surgery were evaluated pre and postoperatively. RESULTS: Regarding pH monitoring, the average preoperative DeMeester index was 28.7, which was followed by a significant postoperative average reduction to 2.8 (p<0,001). Regarding the weight reduction, the average of weight loss was 13.6 kg and body mass index of 5.3 kg/m2 (p<0.001). Furthermore, the average percentage of excess weight loss was 53.9% (standard deviation=26.2). CONCLUSION: The combination of Nissen surgery and gastric plication is a viable procedure and appears to be an acceptable option for the treatment of gastroesophageal reflux disease in obese patients, especially patients with obesity class I. PMID- 29340547 TI - QUALITY OF LIFE AFTER VERTICAL GASTRECTOMY EVALUATED BY THE BAROS QUESTIONNAIRE. AB - BACKGROUND : The satisfactory outcome in the surgical treatment of obesity must include, in addition to weight loss, a significant change in the pre-existing comorbidities and in the quality of life of the patients. AIM : To evaluate the quality of life in the late postoperative period in patients that underwent videolaparoscopic sleeve gastrectomy. METHODS : Was applied the questionnaire "Bariatric Analysis and Reporting Outcome System" (BAROS) in patients that underwent videolaparoscopic sleeve gastrectomy. RESULTS : A total of 47 patients between 21-60 years old were evaluated. The total mean of the BMI before surgery was 43.06+/-5.87 kg/m2. The average percentage of the reduction of excess weight after surgery was 85.46+/-23.6%. The score obtained by patients in the questionnaire about the improvement in the quality of life showed excellent (36.17%), very good (40.43%), good (21.28%) and reasonable (2.13%) results. There was clinical improvement after surgery in all comorbidities investigated. CONCLUSION : BAROS showed excellent results in 36.17%, very good in 40.43%, good in 21.28% and reasonable in 2.13%. The weight loss was critical to improve the quality of life and offered the resolution or clinical improvement in all of the investigated comorbidities. PMID- 29340548 TI - THE RELATION AMONG THE PHYSICAL ACTIVITY LEVEL DURING LEISURE TIME, ANTHROPOMETRY, BODY COMPOSITION, AND PHYSICAL FITNESS OF WOMEN UNDERWENT OF BARIATRIC SURGERY AND AN EQUIVALENT GROUP WITH NO SURGERY. AB - BACKGROUND: Bariatric surgery is an alternative to the obesity treatment. AIM: To compare anthropometric variables such as body composition and physical fitness of those who performed Roux-en-Y gastric bypass. METHODS: Were evaluated 108 women. They were subdivided in three groups: those who performed the bariatric surgery by private health insurance (SAS, n=36); by the public health care (SUS, n=36), and an equivalent group which did not perform the surgery (NO, n=36). Were performed physical fitness, anthropometric and body composition tests. Was evaluated the level of physical activity during the leisure period. RESULTS: Statistically significant differences were observed between the groups sedentary operated (n=28) and sedentary non-operated (n=13) on anthropometry and fat percentage, being the highest indexes in the group operated. CONCLUSION: The level of physical activity showed a positive influence related to anthropometric variables, body composition of the individuals who performed the bariatric surgery when compared to the ones non-operated. PMID- 29340549 TI - TEACHING MODEL FOR EVALUATION OF THE ABILITY AND COMPETENCE PROGRESS IN ENDOSUTURE IN SURGICAL SKILL LABORATORY. AB - BACKGROUND : Laparoscopic manual suturing is probably the most difficult skill to be acquired in minimally invasive surgery. However, laparoscopic exercise endo sutures can be learned with a simulator and are of great practical importance and clinical applicability, absorbing concepts that are immediately transferred to the operating room. AIM : To assess the progression of skills competence in endo sutures through realistic simulation model of systematized education. METHOD : Evaluation of the progression of competence of students in three sequential stages of training in realistic simulation, pre-test (V.1), teaching concepts (V.2) and training station for absorption of video concepts in surgery - ergonomics, stereotaxia, ambidexterity, haptic touch, fucral effect, applied in the manufacture of points corresponding to a Nissen fundoplication, in endo suture for realistic simulation. RESULTS : All students who attended the course absorbed the video concepts in surgery; most participants showed steady and continued improvement and during the stages of training, obtained progression of appropriate skills, defining competence and validation of the teaching model to achieve proficiency. CONCLUSIONS : The teaching model was adequate, safe, revealed the profile of the student, the evolutionary powers of the endo-sutures performance and critical analysis of the training to achieve proficiency in bariatric procedures. PMID- 29340550 TI - MODIFIED HEIDELBERG TECHNIQUE FOR PANCREATIC ANASTOMOSIS. AB - BACKGROUND : Pancreatic fistula is a major cause of morbidity and mortality after pancreatoduodenectomy. To prevent this complication, many technical procedures have been described. AIM: To present a novel technique based on slight modifications of the original Heidelberg technique, as new pancreatojejunostomy technique for reconstruction of pancreatic stump after pancreatoduodenectomy and present initial results. METHOD: The technique was used for patients with soft or hard pancreas and with duct size smaller or larger than 3 mm. The stitches are performed with 5-0 double needle prolene at the 2 o'clock, 4 o'clock, 6 o'clock, 8 o'clock, 10 o'clock, and 12 o'clock, positions, full thickness of the parenchyma. A running suture is performed with 4-0 single needle prolene on the posterior and anterior aspect the pancreatic parenchyma with the jejunal seromuscular layer. A plastic stent, 20 cm long, is inserted into the pancreatic duct and extended into the jejunal lumen. Two previously placed hemostatic sutures on the superior and inferior edges of the remnant pancreatic stump are passed in the jejunal seromuscular layer and tied. RESULTS : Seventeen patients underwent pancreatojejunostomy after pancreatoduodenectomy for different causes. None developed grade B or C pancreatic fistula. Biochemical leak according to the new definition (International Study Group on Pancreatic Surgery) was observed in four patients (23.5%). No mortality was observed. CONCLUSION : Early results of this technique confirm that it is simple, reliable, easy to perform, and easy to learn. This technique is useful to reduce the incidence of pancreatic fistula after pancreatoduodenectomy. PMID- 29340551 TI - MINI-GASTRIC BYPASS: DESCRIPTION OF THE TECHNIQUE AND PRELIMINARY RESULTS. AB - BACKGROUND : In recent years, a surgical technique known as single-anastomosis gastric bypass or mini-gastric bypass has been developed. Its frequency of performance has increased considerably in the current decade. AIM : To describe the mini-gastric bypass technique, its implementation and preliminary results in a university hospital. METHODS : This is an ongoing prospective trial to evaluate the long-term effects of mini-gastric bypass. The main features of the operation were: a gastric pouch with about 15-18 cm (50-150 ml) with a gastroenteric anastomosis in the pre-colic isoperistaltic loop 200 cm from the duodenojejunal angle (biliopancreatic loop). RESULTS : Seventeen individuals have undergone surgery. No procedure needed to be converted to open approach. The overall 30-day morbidity was 5.9% (one individual had intestinal obstruction caused by adhesions). There was no mortality. CONCLUSION : Mini-gastric bypass is a feasible and safe bariatric surgical procedure. PMID- 29340552 TI - SINGLE ANASTOMOSIS GASTRIC BYPASS (ONE ANASTOMOSIS GASTRIC BYPASS OR MINI GASTRIC BYPASS): THE EXPERIENCE WITH BILLROTH II MUST BE CONSIDERED AND IS A CHALLENGE FOR THE NEXT YEARS. AB - INTRODUCTION: Single anastomosis gastric bypass (one anastomosis gastric bypass or mini-gastric bypass) has been presented as an option of surgical treatment for obese patients in order to reduce operation time and avoiding eventual postoperative complications after Roux-en-Y gastric bypass.The main late complication could be related to bile reflux. AIM: To report the experiences published after Billroth II anastomosis and its adverse effects regarding symptoms and damage on the gastric and esophageal mucosa . METHOD: For data recollection Medline, Pubmed, Scielo and Cochrane database were accessed, giving a total of 168 papers being chosen 57 of them. RESULTS: According the reported results during open era surgery for peptic disease and more recent results for gastric cancer surgery, bile reflux and its consequences are more frequent after Billroth II operation compared to Roux-en-Y gastrojejunal anastomosis. CONCLUSION: These findings must be considered for the indication of bariatric surgery. PMID- 29340553 TI - HEPATOCELLULAR CARCINOMA: DIAGNOSIS AND OPERATIVE MANAGEMENT. AB - INTRODUCTION: Hepatocellular carcinoma is an aggressive malignant tumor with high lethality. AIM: To review diagnosis and management of hepatocellular carcinoma. METHODS: Literature review using web databases Medline/PubMed. RESULTS: Hepatocellular carcinoma is a common complication of hepatic cirrhosis. Chronic viral hepatitis B and C also constitute as risk factors for its development. In patients with cirrhosis, hepatocelular carcinoma usually rises upon malignant transformation of a dysplastic regenerative nodule. Differential diagnosis with other liver tumors is obtained through computed tomography scan with intravenous contrast. Magnetic resonance may be helpful in some instances. The only potentially curative treatment for hepatocellular carcinoma is tumor resection, which may be performed through partial liver resection or liver transplantation. Only 15% of all hepatocellular carcinomas are amenable to operative treatment. Patients with Child C liver cirrhosis are not amenable to partial liver resections. The only curative treatment for hepatocellular carcinomas in patients with Child C cirrhosis is liver transplantation. In most countries, only patients with hepatocellular carcinoma under Milan Criteria are considered candidates to a liver transplant. CONCLUSION: Hepatocellular carcinoma is potentially curable if discovered in its initial stages. Medical staff should be familiar with strategies for early diagnosis and treatment of hepatocellular carcinoma as a way to decrease mortality associated with this malignant neoplasm. PMID- 29340554 TI - FUNDOPLICATION CONVERSION IN ROUX-EN-Y GASTRIC BYPASS FOR CONTROL OF OBESITY AND GASTROESOPHAGEAL REFLUX: SYSTEMATIC REVIEW. AB - INTRODUCTION : Obesity is related with higher incidence of gastroesophageal reflux disease. Antireflux surgery has inadequate results when associated with obesity, due to migration and/or subsequent disruption of antireflux wrap. Gastric bypass, meanwhile, provides good control of gastroesophageal reflux. OBJECTIVE: To evaluate the technical difficulty in performing gastric bypass in patients previously submitted to antireflux surgery, and its effectiveness in controlling gastroesophageal reflux. METHODS: Literature review was conducted between July to October 2016 in Medline database, using the following search strategy: ("Gastric bypass" OR "Roux-en-Y") AND ("Fundoplication" OR "Nissen ') AND ("Reoperation" OR "Reoperative" OR "Revisional" OR "Revision" OR "Complications"). RESULTS: Were initially classified 102 articles; from them at the end only six were selected by exclusion criteria. A total of 121 patients were included, 68 women. The mean preoperative body mass index was 37.17 kg/m2 and age of 52.60 years. Laparoscopic Nissen fundoplication was the main prior antireflux surgery (70.58%). The most common findings on esophagogastroduodenoscopy were esophagitis (n=7) and Barrett's esophagus (n=6); the most common early complication was gastric perforation (n=7), and most common late complication was stricture of gastrojejunostomy (n=9). Laparoscopic gastric bypass was performed in 99 patients, with an average time of 331 min. Most patients had complete remission of symptoms and efficient excess weight loss. CONCLUSION: Although technically more difficult, with higher incidence of complications, gastric bypass is a safe and effective option for controlling gastroesophageal reflux in obese patients previously submitted to antireflux surgery, with the added benefit of excess weight loss. PMID- 29340556 TI - AMYAND'S HERNIA: OUR EPERIENCE AND REVIEW OF LITERATURE. PMID- 29340555 TI - THE ROLE OF THE SLEEVE GASTRECTOMY AND THE MANAGEMENT OF TYPE 2 DIABETES. AB - BACKGROUND : Currently, bariatric surgery has promoted weight loss and improved glycemic control in obese patients through different techniques, including vertical sleeve gastrectomy. AIM : Present and update the different vertical sleeve gastrectomy ways of action, both in the treatment of obesity and diabetes, approaching its potential effect on gastrointestinal physiology, as well as the benefits achieved by this manipulation. METHODS : Pubmed database search was used crossing the headings: obesity, type 2 diabetes and sleeve gastrectomy. RESULTS : Published data have shown that short-term weight loss tends to be higher in patients undergoing vertical sleeve gastrectomy compared to Roux-en-Y gastric bypass. In relation to glycemic control, the procedure demonstrated remission of diabetes in up to 60% after one year of surgery. After three years, however, differences in remission rate between surgical and clinical group was not observed, questioning the durability of the technical in a long-term. CONCLUSION : Despite showing good results, both in the weight loss and co-morbidities, conflicting results reinforce the need for more studies to prove the efficiency of the vertical sleeve gastrectomy as well as to understand its action about the molecular mechanisms involved in the disease. PMID- 29340557 TI - AN UNUSUAL CAUSE OF ACUTE ABDOMEN: SPLENIC INFARCTION. PMID- 29340558 TI - LAPAROSCOPIC ABDOMINOPERINEAL RESECTION WITH SACRECTOMY: TECHNICAL DETAILS AND PITFALLS. PMID- 29340559 TI - Serial Magnetic Resonance Imaging Changes in a Patient With Late-Onset Cobalamin C Disease With a Misdiagnosis of Metachromatic Leukodystrophy. PMID- 29340560 TI - Physician-Scientist Career Awards and a Dilemma: National Institute of Child Health and Human Development K Awards-Individual, Institutional, or National? PMID- 29340561 TI - Generic Substitution Rates of Oral Contraceptives and Associated Out-of-Pocket Cost Savings Between January 2010 and December 2014. PMID- 29340563 TI - Citation Errors in Figure 2. PMID- 29340562 TI - Medicare Spending and Potential Savings on Brand-Name Drugs With Available Generic Substitutes Excluded by 2 Large Pharmacy Benefit Managers, 2012 Through 2015. PMID- 29340565 TI - Using Chaplains to Facilitate Advance Care Planning in Medical Practice. PMID- 29340564 TI - Changes in Health Care Use Associated With the Introduction of Hospital Global Budgets in Maryland. AB - Importance: In 2014, the State of Maryland placed the majority of its hospitals under all-payer global budgets for inpatient, hospital outpatient, and emergency department care. Goals of the program included reducing unnecessary hospital utilization and encouraging greater use of primary care. Objective: To compare changes in hospital and primary care use through the first 2 years of Maryland's hospital global budget program among fee-for-service Medicare beneficiaries in Maryland vs matched control areas. Design, Setting, and Participants: We matched 8 Maryland counties (94 967 beneficiaries) with hospitals in the program to 27 non-Maryland control counties (206 389 beneficiaries). Using difference-in differences analysis, we compared changes in hospital and primary care use in Maryland vs the control counties from before (2009-2013) to after (2014-2015) the payment change, using 2 different assumptions. First, we assumed that preintervention differences between Maryland and the control counties would have remained constant past 2014 had Maryland not implemented global budgets (parallel trend assumption). Second, we assumed that differences in preintervention trends would have continued without the payment change (differential trend assumption). Main Outcomes and Measures: Hospital stays (defined as admissions and observation stays); return hospital stays within 30 days of a prior hospital stay; emergency department visits that did not result in admission; price-standardized hospital outpatient department (HOPD) utilization; and visits with primary care physicians (overall and within 7 days of a hospital stay). Results: We matched 8 Maryland counties with hospitals in the program (94 967 beneficiaries; 41.8% male; mean [SD] age, 72.3 [12.2] years) to 27 non-Maryland control counties (206 389 beneficiaries; 42.8% male; mean [SD] age, 71.7 [12.5] years). Assuming parallel trends, we estimated a differential change in Maryland of -0.47 annual hospital stays per 100 beneficiaries (95% CI, -1.65 to 0.72; P = .43) from the preintervention period (2009-2013) to 2015, but assuming differential trends, we estimated a differential change in Maryland of -1.24 stays per 100 beneficiaries (95% CI, -2.46 to -0.02; P = .047). Assuming parallel trends, we found a significant increase in primary care visits (+10.6 annual visits/100 beneficiaries; 95% CI, 4.6 to 16.6 annual visits/100 beneficiaries; P = .001), but assuming differential trends, we found no change (-0.8 visits/100 beneficiaries; 95% CI, -10.6 to 9.0 visits/100 beneficiaries; P = .87). Comparing estimates with both trend assumptions, we found no consistent changes in emergency department visits, return hospital stays, HOPD use, or posthospitalization primary care visits associated with Maryland's program. Conclusions and Relevance: We did not find consistent evidence that Maryland's hospital global budget program was associated with reductions in hospital use or increases in primary care visits among fee-for-service Medicare beneficiaries after 2 years. Evaluations over longer periods should be pursued. PMID- 29340566 TI - Annals for Educators - 16 January 2018. PMID- 29340567 TI - Annals for Hospitalists - 16 January 2018. PMID- 29340568 TI - Maryland's All-Payer Health Reform-A Promising Work in Progress. PMID- 29340570 TI - Name and Characteristics of National Institutes of Health R01-Funded Pediatric Physician-Scientists: Hope and Challenges for the Vanishing Pediatric Physician Scientists. PMID- 29340569 TI - Associations of the Top 20 Alzheimer Disease Risk Variants With Brain Amyloidosis. AB - Importance: Late-onset Alzheimer disease (AD) is highly heritable. Genome-wide association studies have identified more than 20 AD risk genes. The precise mechanism through which many of these genes are associated with AD remains unknown. Objective: To investigate the association of the top 20 AD risk variants with brain amyloidosis. Design, Setting, and Participants: This study analyzed the genetic and florbetapir F 18 data from 322 cognitively normal control individuals, 496 individuals with mild cognitive impairment, and 159 individuals with AD dementia who had genome-wide association studies and 18F-florbetapir positron emission tomographic data from the Alzheimer's Disease Neuroimaging Initiative (ADNI), a prospective, observational, multisite tertiary center clinical and biomarker study. This ongoing study began in 2005. Main Outcomes and Measures: The study tested the association of AD risk allele carrier status (exposure) with florbetapir mean standard uptake value ratio (outcome) using stepwise multivariable linear regression while controlling for age, sex, and apolipoprotein E epsilon4 genotype. The study also reports on an exploratory 3 dimensional stepwise regression model using an unbiased voxelwise approach in Statistical Parametric Mapping 8 with cluster and significance thresholds at 50 voxels and uncorrected P < .01. Results: This study included 977 participants (mean [SD] age, 74 [7.5] years; 535 [54.8%] male and 442 [45.2%] female) from the ADNI-1, ADNI-2, and ADNI-Grand Opportunity. The adenosine triphosphate-binding cassette subfamily A member 7 (ABCA7) gene had the strongest association with amyloid deposition (chi2 = 8.38, false discovery rate-corrected P < .001), after apolioprotein E epsilon4. Significant associations were found between ABCA7 in the asymptomatic and early symptomatic disease stages, suggesting an association with rapid amyloid accumulation. The fermitin family homolog 2 (FERMT2) gene had a stage-dependent association with brain amyloidosis (FERMT2 * diagnosis chi2 = 3.53, false discovery rate-corrected P = .05), which was most pronounced in the mild cognitive impairment stage. Conclusions and Relevance: This study found an association of several AD risk variants with brain amyloidosis. The data also suggest that AD genes might differentially regulate AD pathologic findings across the disease stages. PMID- 29340572 TI - Overuse of Percutaneous Coronary Interventions. PMID- 29340571 TI - Comparison of Physician Visual Assessment With Quantitative Coronary Angiography in Assessment of Stenosis Severity in China. AB - Importance: Although physician visual assessment (PVA) of stenosis severity is a standard clinical practice to support decisions for coronary revascularization, there are concerns about its accuracy. Objective: To compare PVA with quantitative coronary angiography (QCA) as a means of assessing stenosis severity among patients undergoing percutaneous coronary intervention (PCI) in China. Design, Setting, and Participants: A cross-sectional study (2012-2013) of a random subset of 1295 patients from the China Patient-centered Evaluative Assessment of Cardiac Events (PEACE) Prospective PCI Study was carried out. The PEACE Prospective PCI study recruited a consecutive sample of patients undergoing PCI at 35 hospitals in 18 provinces of China. The coronary angiograms of this subset of participants were reviewed using QCA by 2 independent core laboratories blinded to PVA readings. Main Outcomes and Measures: Differences between PVA and QCA assessments of stenosis severity for lesions for which PCI was performed and variation of these differences among hospitals and physicians, stratified by the diagnosis of acute myocardial infarction (AMI). Results: In patients without AMI, the mean (SD) age was 62 (10) years, and 217 (31.5%) were women; in patients with AMI, the mean (SD) age was 60 (11) years, and 153 (25.2%) were women. The mean (SD) percent diameter stenosis by PVA was 16.0% (11.5%) greater than that by QCA in patients without AMI and 10.2% (12.3%) in those with AMI (P < .001 for both comparisons). In patients without AMI, of 837 lesions with 70% or more stenosis by PVA, 427 (50.6%) were less than 70% by QCA; in patients with AMI, similar patterns were observed to a lesser extent. Among patients without AMI, only 4 (0.47%) lesions were additionally assessed with fractional flow reserve. Among 30 hospitals, the difference between PVA and QCA readings of stenosis severity varied from 7.6% (95% CI, 0.4%-14.7%) to 21.3% (95% CI, 17.1%-24.9%) among non AMI patients. Across 57 physicians, this difference varied from 6.9% (95% CI, 1.4%-15.3%) to 26.4% (95% CI, 21.5%-31.4%). Conclusions and Relevance: For coronary lesions treated with PCI in China, PVA reported substantially higher readings of stenosis severity than QCA, with large variation across hospitals and physicians. These findings highlight the need to improve the accuracy of information used to guide treatment decisions in catheterization laboratories. PMID- 29340573 TI - Challenges for Today's Pediatric Physician-Scientists. PMID- 29340575 TI - The Fragile State of the National Institutes of Health Pediatric Research Portfolio, 1992-2015: Doing More With Less? AB - In this article, we examine the status of the National Institutes of Health (NIH) pediatric research portfolio between start of federal fiscal year (FY) 1992 and end of FY 2015. The NIH experienced the greatest mean annual growth rate during the "doubling era" (FY 1998-2003): both the NIH budget (13.5%) and pediatric research portfolios (11.5%) increased annually by double digits. However, in the "postdoubling" era (FY 2004-2009), both the NIH (2.0%) and pediatric (-0.2%) mean annual growth rates decreased dramatically. In the most recent era (FY 2010 2015), the NIH mean annual growth rate has been flat (-0.1%) and pediatric research funding has posted very modest gains (3.5%) without accounting for 1 time increases under the 2009 American Recovery and Reinvestment Act. We offer recommendations to protect against further erosion of the pediatric research portfolio because continuation of these trends will have a negative effect on the health of children during their childhood and as adults. As capacity to conduct basic and applied research is further constrained, it will be a challenge for pediatric researchers to do more with less and less. PMID- 29340574 TI - Effect of General Anesthesia and Conscious Sedation During Endovascular Therapy on Infarct Growth and Clinical Outcomes in Acute Ischemic Stroke: A Randomized Clinical Trial. AB - Importance: Endovascular therapy (EVT) is the standard of care for select patients who had a stroke caused by a large vessel occlusion in the anterior circulation, but there is uncertainty regarding the optimal anesthetic approach during EVT. Observational studies suggest that general anesthesia (GA) is associated with worse outcomes compared with conscious sedation (CS). Objective: To examine the effect of type of anesthesia during EVT on infarct growth and clinical outcome. Design, Setting, and Participants: The General or Local Anesthesia in Intra Arterial Therapy (GOLIATH) trial was a single-center prospective, randomized, open-label, blinded end-point evaluation that enrolled patients from March 12, 2015, to February 2, 2017. Although the trial screened 1501 patients, it included 128 consecutive patients with acute ischemic stroke caused by large vessel occlusions in the anterior circulation within 6 hours of onset; 1372 patients who did not fulfill inclusion criteria and 1 who did not provide consent were excluded. Primary analysis was unadjusted and according to the intention-to-treat principle. Interventions: Patients were randomized to either the GA group or the CS group (1:1 allocation) before EVT. Main Outcomes and Measures: The primary end point was infarct growth between magnetic resonance imaging scans performed before EVT and 48 to 72 hours after EVT. The hypothesis formulated before data collection was that patients who were under CS would have less infarct growth. Results: Of 128 patients included in the trial, 65 were randomized to GA, and 63 were randomized to CS. For the entire cohort, the mean (SD) age was 71.4 (11.4) years, and 62 (48.4%) were women. Baseline demographic and clinical variables were balanced between the GA and CS treatment arms. The median National Institutes of Health Stroke Scale score was 18 (interquartile range [IQR], 14-21). Four patients (6.3%) in the CS group were converted to the GA group. Successful reperfusion was significantly higher in the GA arm than in the CS arm (76.9% vs 60.3%; P = .04). The difference in the volume of infarct growth among patients treated under GA or CS did not reach statistical significance (median [IQR] growth, 8.2 [2.2-38.6] mL vs 19.4 [2.4-79.0] mL; P = .10). There were better clinical outcomes in the GA group, with an odds ratio for a shift to a lower modified Rankin Scale score of 1.91 (95% CI, 1.03-3.56). Conclusions and Relevance: For patients who underwent thrombectomy for acute ischemic stroke caused by large vessel occlusions in the anterior circulation, GA did not result in worse tissue or clinical outcomes compared with CS. Trial Registration: clinicaltrials.gov Identifier: NCT02317237. PMID- 29340576 TI - Association of National Institute of Child Health and Human Development Career Development Awards With Subsequent Research Project Grant Funding. AB - Importance: Investing in the next generation of researchers is essential, as recently highlighted in the 21st Century Cures Act. From its inception, the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) has supported training and career development to ensure a robust pipeline of investigators who are prepared to lead their respective fields of inquiry. In recent years, the NICHD has emphasized institutional over individual training awards to a greater degree than many other National Institutes of Health institutes of similar size. Objective: To evaluate the success of individuals supported by NICHD career development and training awards, as measured by subsequent application and receipt of independent National Institutes of Health research project grant funding. Design, Setting, and Participants: This retrospective cohort study identified 417 physician-scholars who were supported by NICHD career development awards between October 1, 1999, and September 30, 2001. This period was selected to allow adequate follow-up of research project grant applications and funding. Among these physician-scholars, 355 met inclusion criteria. Main Outcomes and Measures: The primary outcomes were the numbers of research project grant applications submitted and, of these, the numbers that were successfully funded. Results: Among 355 physician-scientists, scholars who had an MD degree only and received a K award or both an individual K award and institutional K12 support were more likely than those who received only K12 support (individual K only vs institutional K12 only: odds ratio [OR], 4.86; 95% CI, 1.83-13.62; both K and K12 vs K12 only: OR, 3.19; 95% CI, 1.46-7.10) to apply for subsequent project grant funding (88.0% vs 82.8% vs 60.1%, respectively; P < .001) and to receive it (60.0% vs 60.9% vs 32.9%, respectively; P < .001). For physicians with both MD and PhD degrees, neither application nor funding rates were statistically significantly different whether their career development was supported by individual or institutional awards. Conclusions and Relevance: Physician-scholars are more likely to apply for and receive a National Institutes of Health research grant if they are trained on an individual career development award, with or without an institutional training award. Based on the data, the NICHD intends to provide a greater proportion of its career development fund allocation to individual awards. The NICHD recognizes the importance of institutional awards and will continue to support them. The NICHD remains committed to training and intends to maintain its investment in training and career development awards going forward. PMID- 29340577 TI - Lactation Duration and Progression to Diabetes in Women Across the Childbearing Years: The 30-Year CARDIA Study. AB - Importance: Lactation duration has shown weak protective associations with incident diabetes (3%-15% lower incidence per year of lactation) in older women based solely on self-report of diabetes, studies initiated beyond the reproductive period are vulnerable to unmeasured confounding or reverse causation from antecedent biochemical risk status, perinatal outcomes, and behaviors across the childbearing years. Objective: To evaluate the association between lactation and progression to diabetes using biochemical testing both before and after pregnancy and accounting for prepregnancy cardiometabolic measures, gestational diabetes (GD), and lifestyle behaviors. Design, Setting, and Participants: For this US multicenter, community-based 30-year prospective cohort study, there were 1238 women from the Coronary Artery Risk Development in Young Adults (CARDIA) study of young black and white women ages 18 to 30 years without diabetes at baseline (1985-1986) who had 1 or more live births after baseline, reported lactation duration, and were screened for diabetes up to 7 times during 30 years after baseline (1986-2016). Exposures: Time-dependent lactation duration categories (none, >0 to 6 months, >6 to <12 months, and >=12 months) across all births since baseline through 30 years. Main Outcomes and Measures: Diabetes incidence rates per 1000 person-years and adjusted relative hazards (RH) with corresponding 95% CIs, as well as proportional hazards regression models adjusted for biochemical, sociodemographic, and reproductive risk factors, as well as family history of diabetes, lifestyle, and weight change during follow-up. Results: Overall 1238 women were included in this analysis (mean [SD] age, 24.2 [3.7] years; 615 black women). There were 182 incident diabetes cases during 27 598 person-years for an overall incidence rate of 6.6 cases per 1000 person-years (95% CI, 5.6-7.6); and rates for women with GD and without GD were 18.0 (95% CI, 13.3-22.8) and 5.1 (95% CI, 4.2-6.0), respectively (P for difference < .001). Lactation duration showed a strong, graded inverse association with diabetes incidence: adjusted RH for more than 0 to 6 months, 0.75 (95% CI, 0.51-1.09); more than 6 months to less than 12 months, 0.52 (95% CI, 0.31-0.87), and 12 months or more 0.53 (0.29-0.98) vs none (0 days) (P for trend = .01). There was no evidence of effect modification by race, GD, or parity. Conclusions and Relevance: This study provides longitudinal biochemical evidence that lactation duration is independently associated with lower incidence of diabetes. Further investigation is required to elucidate mechanisms that may explain this relationship. PMID- 29340578 TI - Clinical recommendations for high altitude exposure of individuals with pre existing cardiovascular conditions: A joint statement by the European Society of Cardiology, the Council on Hypertension of the European Society of Cardiology, the European Society of Hypertension, the International Society of Mountain Medicine, the Italian Society of Hypertension and the Italian Society of Mountain Medicine. AB - Take home figureAdapted from Bartsch and Gibbs2 Physiological response to hypoxia. Life-sustaining oxygen delivery, in spite of a reduction in the partial pressure of inhaled oxygen between 25% and 60% (respectively at 2500 m and 8000 m), is ensured by an increase in pulmonary ventilation, an increase in cardiac output by increasing heart rate, changes in vascular tone, as well as an increase in haemoglobin concentration. BP, blood pressure; HR, heart rate; PaCO2, partial pressure of arterial carbon dioxide. PMID- 29340579 TI - Extracorporeal life support in thoracic surgery. PMID- 29340580 TI - Population Specific Biomarkers of Human Aging: A Big Data Study Using South Korean, Canadian, and Eastern European Patient Populations. AB - Accurate and physiologically meaningful biomarkers for human aging are key to assessing antiaging therapies. Given ethnic differences in health, diet, lifestyle, behavior, environmental exposures, and even average rate of biological aging, it stands to reason that aging clocks trained on datasets obtained from specific ethnic populations are more likely to account for these potential confounding factors, resulting in an enhanced capacity to predict chronological age and quantify biological age. Here, we present a deep learning-based hematological aging clock modeled using the large combined dataset of Canadian, South Korean, and Eastern European population blood samples that show increased predictive accuracy in individual populations compared to population specific hematologic aging clocks. The performance of models was also evaluated on publicly available samples of the American population from the National Health and Nutrition Examination Survey (NHANES). In addition, we explored the association between age predicted by both population specific and combined hematological clocks and all-cause mortality. Overall, this study suggests (a) the population specificity of aging patterns and (b) hematologic clocks predicts all-cause mortality. The proposed models were added to the freely-available Aging.AI system expanding the range of tools for analysis of human aging. PMID- 29340581 TI - Gene Turnover and Diversification of the alpha- and beta-Globin Gene Families in Sauropsid Vertebrates. AB - The genes that encode the alpha- and beta-chain subunits of vertebrate hemoglobin have served as a model system for elucidating general principles of gene family evolution, but little is known about patterns of evolution in amniotes other than mammals and birds. Here, we report a comparative genomic analysis of the alpha- and beta-globin gene clusters in sauropsids (archosaurs and nonavian reptiles). The objectives were to characterize changes in the size and membership composition of the alpha- and beta-globin gene families within and among the major sauropsid lineages, to reconstruct the evolutionary history of the sauropsid alpha- and beta-globin genes, to resolve orthologous relationships, and to reconstruct evolutionary changes in the developmental regulation of gene expression. Our comparisons revealed contrasting patterns of evolution in the unlinked alpha- and beta-globin gene clusters. In the alpha-globin gene cluster, which has remained in the ancestral chromosomal location, evolutionary changes in gene content are attributable to the differential retention of paralogous gene copies that were present in the common ancestor of tetrapods. In the beta-globin gene cluster, which was translocated to a new chromosomal location, evolutionary changes in gene content are attributable to differential gene gains (via lineage specific duplication events) and gene losses (via lineage-specific deletions and inactivations). Consequently, all major groups of amniotes possess unique repertoires of embryonic and postnatally expressed beta-type globin genes that diversified independently in each lineage. These independently derived beta-type globins descend from a pair of tandemly linked paralogs in the most recent common ancestor of sauropsids. PMID- 29340582 TI - Immune-Related Transcriptional Responses to Parasitic Infection in a Naturally Inbred Fish: Roles of Genotype and Individual Variation. AB - Parasites are strong drivers of evolutionary change and the genetic variation of both host and parasite populations can co-evolve as a function of parasite virulence and host resistance. The role of transcriptome variation in specific interactions between host and parasite genotypes has been less studied and can be confounded by differences in genetic variation. We employed two naturally inbred lines of a self-fertilizing fish to estimate the role of host genotype in the transcriptome response to parasite infection using RNA-seq. In addition, we targeted several differentially expressed immune-related genes to further investigate the relative role of individual variation in the immune response using RT-qPCR, taking advantage of the genomic uniformity of the self-fertilizing lines. We found significant differences in gene expression between lines in response to infection both in the transcriptome and in individual gene RT-qPCR analyses. Individual RT-qPCR analyses of gene expression identified significant variance differences between lines for six genes but only for three genes between infected and control fish. Our results indicate that although the genetic background plays an important role in the transcriptome response to parasites, it cannot fully explain individual differences within genetically homogeneous lines, which can be important for determining the response to parasites. PMID- 29340583 TI - Functional analysis of the Helicobacter pullorum N-linked protein glycosylation system. AB - N-linked protein glycosylation systems operate in species from all three domains of life. The model bacterial N-linked glycosylation system from Campylobacter jejuni is encoded by pgl genes present at a single chromosomal locus. This gene cluster includes the pglB oligosaccharyltransferase responsible for transfer of glycan from lipid carrier to protein. Although all genomes from species of the Campylobacter genus contain a pgl locus, among the related Helicobacter genus only three evolutionarily related species (H. pullorum, H. canadensis and H. winghamensis) potentially encode N-linked protein glycosylation systems. Helicobacter putative pgl genes are scattered in five chromosomal loci and include two putative oligosaccharyltransferase-encoding pglB genes per genome. We have previously demonstrated the in vitro N-linked glycosylation activity of H. pullorum resulting in transfer of a pentasaccharide to a peptide at asparagine within the sequon (D/E)XNXS/T. In this study, we identified the first H. pullorum N-linked glycoprotein, termed HgpA. Production of histidine-tagged HgpA in the background of insertional knockout mutants of H. pullorum pgl/wbp genes followed by analysis of HgpA glycan structures demonstrated the role of individual gene products in the PglB1-dependent N-linked protein glycosylation pathway. Glycopeptide purification by zwitterionic-hydrophilic interaction liquid chromatography coupled with tandem mass spectrometry identified six glycosites from five H. pullorum proteins, which was consistent with proteins reactive with a polyclonal antiserum generated against glycosylated HgpA. This study demonstrates functioning of a H. pullorum N-linked general protein glycosylation system. PMID- 29340585 TI - Spinal Tuberculosis: Clinicoradiological Findings in 274 Patients. AB - Background: Mycobacterium tuberculosis is a major cause of myelopathy and radiculopathy in settings with a high prevalence of tuberculosis/human immunodeficiency virus (HIV) coinfection. However, a paucity of publications exists on the spectrum of neurological and magnetic resonance (MR) imaging findings of spinal tuberculosis in these populations. Methods: We conducted a retrospective study of adults with spinal tuberculosis at a referral center in South Africa for patients with spinal disease without bony involvement seen at plain film radiography. We report the clinical, laboratory and spinal MR imaging findings, compare HIV-infected and HIV-uninfected patients, and correlate clinical and cerebrospinal fluid findings with those of MR imaging. Results: Of 274 patients, 209 (76%) were HIV infected and 49 (18%) were HIV uninfected. Radiculomyelitis occurred in 77% (n = 210), and spondylitis in 39% (n = 106). Subdural abscess (n = 42) and intramedullary tuberculoma (n = 33) were common. In 24% of HIV-infected and 14% of HIV-uninfected patients, spinal disease manifested as a paradoxical tuberculosis reaction, frequently following tuberculous meningitis. The triad of neurological deficit, fever, and back pain was similar in patients with spondylitis (24%), epi/subdural abscess without bony disease (14%), meningoradiculitis (17%), and isolated myelitis (17%) . Conclusions: Radiculomyelitis is a common manifestation of spinal tuberculosis in settings with high tuberculosis/HIV prevalence, often presenting as a paradoxical reaction. We describe a high frequency of rarely reported spinal tuberculosis manifestations, suggesting that these are more common than implied by the literature. PMID- 29340586 TI - Data Sharing. PMID- 29340584 TI - Long-interval intracortical inhibition as biomarker for epilepsy: a transcranial magnetic stimulation study. AB - Cortical excitability, as measured by transcranial magnetic stimulation combined with electromyography, is a potential biomarker for the diagnosis and follow-up of epilepsy. We report on long-interval intracortical inhibition data measured in four different centres in healthy controls (n = 95), subjects with refractory genetic generalized epilepsy (n = 40) and with refractory focal epilepsy (n = 69). Long-interval intracortical inhibition was measured by applying two supra threshold stimuli with an interstimulus interval of 50, 100, 150, 200 and 250 ms and calculating the ratio between the response to the second (test stimulus) and to the first (conditioning stimulus). In all subjects, the median response ratio showed inhibition at all interstimulus intervals. Using a mixed linear-effects model, we compared the long-interval intracortical inhibition response ratios between the different subject types. We conducted two analyses; one including data from the four centres and one excluding data from Centre 2, as the methods in this centre differed from the others. In the first analysis, we found no differences in long-interval intracortical inhibition between the different subject types. In all subjects, the response ratios at interstimulus intervals 100 and 150 ms showed significantly more inhibition than the response ratios at 50, 200 and 250 ms. Our second analysis showed a significant interaction between interstimulus interval and subject type (P = 0.0003). Post hoc testing showed significant differences between controls and refractory focal epilepsy at interstimulus intervals of 100 ms (P = 0.02) and 200 ms (P = 0.04). There were no significant differences between controls and refractory generalized epilepsy groups or between the refractory generalized and focal epilepsy groups. Our results do not support the body of previous work that suggests that long-interval intracortical inhibition is significantly reduced in refractory focal and genetic generalized epilepsy. Results from the second analysis are even in sharper contrast with previous work, showing inhibition in refractory focal epilepsy at 200 ms instead of facilitation previously reported. Methodological differences, especially shorter intervals between the pulse pairs, may have contributed to our inability to reproduce previous findings. Based on our results, we suggest that long-interval intracortical inhibition as measured by transcranial magnetic stimulation and electromyography is unlikely to have clinical use as a biomarker of epilepsy. PMID- 29340587 TI - Subclinical device-detected atrial fibrillation and stroke risk: a systematic review and meta-analysis. AB - Aims: To determine stroke risk in subclinical atrial fibrillation (AF) and temporal association between subclinical AF and stroke. Methods and results: Pubmed/Embase was searched for studies reporting stroke in subclinical AF in patients with cardiac implantable electronic devices (CIEDs). After exclusions, 11 studies were analysed. Of these seven studies reported prevalence of subclinical AF, two studies reported association between subclinical and clinical AF, seven studies reported stroke risk in subclinical AF, and five studies reported temporal relationship between subclinical AF and stroke. Subclinical AF was noted after CIEDs implant in 35% [interquartile range (IQR) 34-42] of unselected patients with pacing indication over 1-2.5 years. The definition and cut-off duration (for stroke risk) of subclinical AF varied across studies. Subclinical AF was strongly associated with clinical AF (OR 5.7, 95% CI 4.0-8.0, P < 0.001, I2 = 0%). The annual stroke rate in patients with subclinical AF > defined cut-off duration was 1.89/100 person-year (95% CI 1.02-3.52) with 2.4 fold (95% CI 1.8-3.3, P < 0.001, I2 = 0%) increased risk of stroke as compared to patients with subclinical AF < cut-off duration (absolute risk was 0.93/100 person-year). Three studies provided mean CHADS2 score. In these studies, with mean CHADS2 score of 2.1 +/- 0.1, subclinical AF was associated with annual stroke rate of 2.76/100 person-years (95% CI 1.46-5.23). After excluding patients without AF, only 17% strokes occurred in presence of ongoing AF. Subclinical AF was noted in 29% [IQR 8-57] within 30 days preceding stroke. Conclusion: Subclinical AF strongly predicts clinical AF and is associated with elevated absolute stroke risk albeit lower than risk described for clinical AF. PMID- 29340589 TI - Risk prediction by non-invasive coronary imaging: we are not there yet! PMID- 29340588 TI - Antimicrobial-Resistant Klebsiella pneumoniae Carriage and Infection in Specialized Geriatric Care Wards Linked to Acquisition in the Referring Hospital. AB - Background: Klebsiella pneumoniae is a leading cause of extended-spectrum beta lactamase (ESBL)-producing hospital-associated infections, for which elderly patients are at increased risk. Methods: We conducted a 1-year prospective cohort study, in which a third of patients admitted to 2 geriatric wards in a specialized hospital were recruited and screened for carriage of K. pneumoniae by microbiological culture. Clinical isolates were monitored via the hospital laboratory. Colonizing and clinical isolates were subjected to whole-genome sequencing and antimicrobial susceptibility testing. Results: K. pneumoniae throat carriage prevalence was 4.1%, rectal carriage 10.8%, and ESBL carriage 1.7%, and the incidence of K. pneumoniae infection was 1.2%. The isolates were diverse, and most patients were colonized or infected with a unique phylogenetic lineage, with no evidence of transmission in the wards. ESBL strains carried blaCTX-M-15 and belonged to clones associated with hospital-acquired ESBL infections in other countries (sequence type [ST] 29, ST323, and ST340). One also carried the carbapenemase blaIMP-26. Genomic and epidemiological data provided evidence that ESBL strains were acquired in the referring hospital. Nanopore sequencing also identified strain-to-strain transmission of a blaCTX-M-15 FIBK/FIIK plasmid in the referring hospital. Conclusions: The data suggest the major source of K. pneumoniae was the patient's own gut microbiome, but ESBL strains were acquired in the referring hospital. This highlights the importance of the wider hospital network to understanding K. pneumoniae risk and infection prevention. Rectal screening for ESBL organisms on admission to geriatric wards could help inform patient management and infection control in such facilities. PMID- 29340591 TI - Interactions of Coccinella novemnotata (Coleoptera: Coccinellidae) and Coccinella septempunctata (Coleoptera: Coccinellidae) While Foraging for Aphids. AB - The importation and establishment of Coccinella septempunctata L. (Coleoptera: Coccinellidae) in North America purportedly caused the displacement and local extirpation of the native ninespotted lady beetle, Coccinella novemnotata Herbst (Coleoptera: Coccinellidae), across most of its former range, and several reports have shown that C. septempunctata maintains competitive advantages over C. novemnotata. We investigated the role of aphid density on the retention time of these two species on fava bean plants, and the effect of con- versus heterospecific pairings of adult beetles on the foraging behavior of C. novemnotata. We found that aphid density did not affect C. novemnotata's retention time, but did affect the retention time of C. septempunctata, which left plants without aphids significantly faster than C. novemnotata. Additionally, C. septempunctata females left plants significantly faster than their male counterparts, whereas we observed no difference between the two sexes for C. novemnotata. Our test of pairs of beetles showed that C. novemnotata were together on plants more frequently than conspecific pairs of C. septempunctata and heterospecific pairs of beetles, and that all beetles were more likely to be found together on the aphid-infested plant versus the non-infested plant regardless of the pairs' composition. These results show that C. novemnotata spend more time foraging for aphids when aphids are scarce compared with C. septempunctata, and that C. novemnotata is less tolerant of occupying plants inhabited by C. septempunctata versus a conspecific beetle, adding additional mechanisms whereby C. septempunctata could outcompete C. novemnotata in the field. PMID- 29340592 TI - Neuroimmunomodulators in Neuroborreliosis and Lyme Encephalopathy. AB - Background: Lyme encephalopathy, characterized by nonspecific neurobehavioral symptoms including mild cognitive difficulties, may occur in patients with systemic Lyme disease and is often mistakenly attributed to central nervous system (CNS) infection. Identical symptoms occur in many inflammatory states, possibly reflecting the effect of systemic immune mediators on the CNS. Methods: Multiplex immunoassays were used to measure serum and cerebrospinal fluid (CSF) cytokines in patients with or without Lyme disease to determine if there are specific markers of active CNS infection (neuroborreliosis), or systemic inflammatory mediators associated with neurobehavioral syndromes. Results: CSF CXCL13 levels were elevated dramatically in confirmed neuroborreliosis (n = 8), less so in possible neuroborreliosis (n = 11) and other neuroinflammatory conditions (n = 44). Patients with Lyme (n = 63) or non-Lyme (n = 8) encephalopathy had normal CSF findings, but had elevated serum levels of interleukins 7, 17A, and 17F, thymic stromal lymphopoietin and macrophage inflammatory protein-alpha. Conclusions: CSF CXCL13 is a sensitive and specific marker of neuroborreliosis in individuals with Borrelia-specific intrathecal antibody production. However, it does not distinguish individuals strongly suspected of having neuroborreliosis, but lacking confirmatory intrathecal antibodies, from those with other neuroinflammatory conditions. Patients with mild cognitive symptoms occurring during acute Lyme disease, and/or after appropriate treatment, have normal CSF but elevated serum levels of T-helper 17 markers and T-cell growth factors, which are also elevated in patients without Lyme disease but with similar symptoms. In the absence of CSF abnormalities, neurobehavioral symptoms appear to be associated with systemic inflammation, not CNS infection or inflammation, and are not specific to Lyme disease. PMID- 29340590 TI - Efficacy and Safety of Deep Brain Stimulation in Tourette Syndrome: The International Tourette Syndrome Deep Brain Stimulation Public Database and Registry. AB - Importance: Collective evidence has strongly suggested that deep brain stimulation (DBS) is a promising therapy for Tourette syndrome. Objective: To assess the efficacy and safety of DBS in a multinational cohort of patients with Tourette syndrome. Design, Setting, and Participants: The prospective International Deep Brain Stimulation Database and Registry included 185 patients with medically refractory Tourette syndrome who underwent DBS implantation from January 1, 2012, to December 31, 2016, at 31 institutions in 10 countries worldwide. Exposures: Patients with medically refractory symptoms received DBS implantation in the centromedian thalamic region (93 of 163 [57.1%]), the anterior globus pallidus internus (41 of 163 [25.2%]), the posterior globus pallidus internus (25 of 163 [15.3%]), and the anterior limb of the internal capsule (4 of 163 [2.5%]). Main Outcomes and Measures: Scores on the Yale Global Tic Severity Scale and adverse events. Results: The International Deep Brain Stimulation Database and Registry enrolled 185 patients (of 171 with available data, 37 females and 134 males; mean [SD] age at surgery, 29.1 [10.8] years [range, 13-58 years]). Symptoms of obsessive-compulsive disorder were present in 97 of 151 patients (64.2%) and 32 of 148 (21.6%) had a history of self-injurious behavior. The mean (SD) total Yale Global Tic Severity Scale score improved from 75.01 (18.36) at baseline to 41.19 (20.00) at 1 year after DBS implantation (P < .001). The mean (SD) motor tic subscore improved from 21.00 (3.72) at baseline to 12.91 (5.78) after 1 year (P < .001), and the mean (SD) phonic tic subscore improved from 16.82 (6.56) at baseline to 9.63 (6.99) at 1 year (P < .001). The overall adverse event rate was 35.4% (56 of 158 patients), with intracranial hemorrhage occurring in 2 patients (1.3%), infection in 4 patients with 5 events (3.2%), and lead explantation in 1 patient (0.6%). The most common stimulation induced adverse effects were dysarthria (10 [6.3%]) and paresthesia (13 [8.2%]). Conclusions and Relevance: Deep brain stimulation was associated with symptomatic improvement in patients with Tourette syndrome but also with important adverse events. A publicly available website on outcomes of DBS in patients with Tourette syndrome has been provided. PMID- 29340593 TI - The Clinical Utility of Methicillin-Resistant Staphylococcus aureus (MRSA) Nasal Screening to Rule Out MRSA Pneumonia: A Diagnostic Meta-analysis With Antimicrobial Stewardship Implications. AB - Background: Recent literature has highlighted methicillin-resistant Staphylococcus aureus (MRSA) nasal screening as a possible antimicrobial stewardship program tool for avoiding unnecessary empiric MRSA therapy for pneumonia, yet current guidelines recommend MRSA therapy based on risk factors. The objective of this meta-analysis was to evaluate the diagnostic value of MRSA nasal screening in MRSA pneumonia. Methods: PubMed and EMBASE were searched from inception to November 2016 for English studies evaluating MRSA nasal screening and development of MRSA pneumonia. Data analysis was performed using a bivariate random-effects model to estimate pooled sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV). Results: Twenty-two studies, comprising 5163 patients, met our inclusion criteria. The pooled sensitivity and specificity of MRSA nares screen for all MRSA pneumonia types were 70.9% and 90.3%, respectively. With a 10% prevalence of potential MRSA pneumonia, the calculated PPV was 44.8%, and the NPV was 96.5%. The pooled sensitivity and specificity for MRSA community-acquired pneumonia (CAP) and healthcare-associated pneumonia (HCAP) were 85% and 92.1%, respectively. For CAP and HCAP both the PPV and NPV increased, to 56.8% and 98.1%, respectively. In comparison, for MRSA ventilated-associated pneumonia, the sensitivity, specificity, PPV, and NPV were 40.3%, 93.7%, 35.7%, and 94.8%, respectively. Conclusion: Nares screening for MRSA had a high specificity and NPV for ruling out MRSA pneumonia, particularly in cases of CAP/HCAP. Based on the NPV, MRSA nares screening is a valuable tool for AMS to streamline empiric antibiotic therapy, especially among patients with pneumonia who are not colonized with MRSA. PMID- 29340595 TI - Clinical impact of rotor ablation in atrial fibrillation: a systematic review. AB - Aims: Rotor mapping and ablation have gained favour over the recent years as an emerging ablation strategy targeting drivers of atrial fibrillation (AF). Their efficacy, however, has been a topic of great debate with variable outcomes across centres. The aim of this study was to systematically review the recent medical literature to determine the medium-term outcomes of rotor ablation in patients with paroxysmal atrial fibrillation (PAF) and persistent atrial fibrillation (PeAF). Methods and results: A systematic search of the contemporary scientific literature (PubMed and EMBASE) was performed in August 2017. Only studies assessing arrhythmia-free survival from rotor ablation of AF were included. We used the random-effects model to assess the primary outcome of pooled medium-term single-procedure AF-free survival for both PAF and PeAF. Success rates from multiple procedures and complication rates were also examined. We included 11 observational studies (4 PAF and 10 PeAF) with a total of 556 patients (166 PAF and 390 PeAF). Pooled single-procedure freedom from AF was 37.8% [95% confidence interval 5.6-86.3%] at a mean follow-up period of 13.8 +/- 1.8 months for PAF and 59.2% (95% CI 41.4-74.9%) at a mean follow-up period of 12.9 +/- 6 months for PeAF. There was a marked heterogeneity between studies (I2 = 93.8% for PAF and 88.3% for PeAF). The mean complication rate of rotor ablation among the reported studies was 3.4%. Conclusion: The wide variability in success rate between different centres performing rotor ablations suggests that the optimal ablation strategy, particularly targeting rotors, is unclear. Results from randomized studies are necessary before this technique can be considered as an established clinical tool. PMID- 29340596 TI - Commentary on: Effect of Botulinum Toxin A on Muscle Healing and its Implications in Aesthetic and Reconstructive Surgery. PMID- 29340597 TI - Managing dose-, damage- and data-rates in multi-frame spectrum-imaging. AB - As an instrument, the scanning transmission electron microscope is unique in being able to simultaneously explore both local structural and chemical variations in materials at the atomic scale. This is made possible as both types of data are acquired serially, originating simultaneously from sample interactions with a sharply focused electron probe. Unfortunately, such scanned data can be distorted by environmental factors, though recently fast-scanned multi-frame imaging approaches have been shown to mitigate these effects. Here, we demonstrate the same approach but optimized for spectroscopic data; we offer some perspectives on the new potential of multi-frame spectrum-imaging (MFSI) and show how dose-sharing approaches can reduce sample damage, improve crystallographic fidelity, increase data signal-to-noise, or maximize usable field of view. Further, we discuss the potential issue of excessive data-rates in MFSI, and demonstrate a file-compression approach to significantly reduce data storage and transmission burdens. PMID- 29340598 TI - The Risk of Skin Necrosis Following Hyaluronic Acid Filler Injection in Patients with a History of Cosmetic Rhinoplasty. AB - Background: As the number of patients using dermal filler for face augmentation increases, the number of adverse events associated with injection may increase. Unpredictable repositioning of blood vessels and a more tenuous blood supply in the operated nose may increase the risk of ischemia, necrosis and vascular embolism following the filler injection. Objectives: To highlight the importance of the patient's history of previous cosmetic procedures including rhinoplasty in the emergence of vascular complications. Methods: Our medical records over a two year period were reviewed retrospectively to identify all patients who were treated at our center for vascular complications associated with facial hyaluronic acid filler injections. In each case, the subject's demographic data (gender and age), habitual status, past medical and surgical history, the symptoms and clinical presentation at the first visit, the time interval between the injection and the onset of symptoms, injected filler material and brand, injection sites, the introduced treatment, and photographs were reviewed carefully. Results: A total of seven patients were identified, each developing skin necrosis following injection of the hyaluronic acid filler. All patients reported a cosmetic rhinoplasty more than three years ago. Conclusions: Our finding confirms the conjecture previously made in the literature and suggests that the distinctive vascularity of the nose and the surrounding area may cause filler augmentation induced vascular complications in patients whose vascular circulation has already been compromised by a previous nose surgery. PMID- 29340599 TI - A benchmark study of scoring methods for non-coding mutations. AB - Motivation: Detailed knowledge of coding sequences has led to different candidate models for pathogenic variant prioritization. Several deleteriousness scores have been proposed for the non-coding part of the genome, but no large-scale comparison has been realized to date to assess their performance. Results: We compared the leading scoring tools (CADD, FATHMM-MKL, Funseq2 and GWAVA) and some recent competitors (DANN, SNP and SOM scores) for their ability to discriminate assumed pathogenic variants from assumed benign variants (using the ClinVar, COSMIC and 1000 genomes project databases). Using the ClinVar benchmark, CADD was the best tool for detecting the pathogenic variants that are mainly located in protein coding gene regions. Using the COSMIC benchmark, FATHMM-MKL, GWAVA and SOMliver outperformed the other tools for pathogenic variants that are typically located in lincRNAs, pseudogenes and other parts of the non-coding genome. However, all tools had low precision, which could potentially be improved by future non-coding genome feature discoveries. These results may have been influenced by the presence of potential benign variants in the COSMIC database. The development of a gold standard as consistent as ClinVar for these regions will be necessary to confirm our tool ranking. Availability and implementation: The Snakemake, C++ and R codes are freely available from https://github.com/Oncostat/BenchmarkNCVTools and supported on Linux. Contact: damien.drubay@gustaveroussy.fr or stefan.michiels@gustaveroussy.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29340600 TI - Development and impact of a massive open online course (MOOC) for antimicrobial stewardship. AB - Background: The University of Dundee and the BSAC developed a massive open online course (MOOC) to address the global need for education to support antimicrobial stewardship in low- and middle-income countries. Methods: An interactive course, Antimicrobial Stewardship: Managing Antibiotic Resistance, was developed and delivered via the FutureLearn(c) platform. The course ran over four 6 week periods during 2015 and 2016 supported by educators and was evaluated via data on uptake and feedback from learners on impact on clinical practice. Results: In total, 32 944 people, 70% of them healthcare professionals, from 163 countries joined the course from Europe (49%), Asia (16%), Africa (13%), North America (9%), Australia (8%) and South America (5%). Between 33% and 37% of joiners in each run completed at least one step in any week of the course and 219 participants responded to a post-course survey. The course was rated good or excellent by 208 (95%) of the participants, and 83 (38%) intended to implement stewardship interventions in their own setting. A follow-up survey 6 months later suggested that 49% had implemented such interventions. Conclusions: The MOOC has addressed a global learning need by providing education free at the point of access, and learning from its development will help others embarking upon similar educational solutions. Initial quantitative and qualitative feedback suggests it has engaged participants and complements traditional educational methods. Measuring its real impact on clinical practice remains a challenge. The FutureLearn(c) platform offers flexibility for MOOCs to be sustainable through modification to remove educator facilitation but maintain active participant discussion. PMID- 29340601 TI - How to treat borderline resectable pancreatic cancer: current challenges and future directions. AB - Borderline resectable pancreatic cancer (BRPC) is an advanced tumor in contact with the surrounding major vessels, making R0 resection difficult to achieve. Neoadjuvant treatment is expected to provide substantial local control and prolong survival. However, there is no standard treatment. I therefore conducted a strategic literature search from January 2013 to September 2017 and identified 37 clinical studies of pancreatic cancer, including BRPC, to evaluate treatment interventions. Twenty (54%) studies were prospective. Neoadjuvant regimens were as follows: chemotherapy (CT) followed by chemoradiotherapy (CRT) or radiotherapy (RT) (n = 16, 43%), CT alone (n = 11, 30%), CRT alone (n = 9, 24%) and RT alone (n = 1, 3%). Radiotherapy was employed in 70% of the studies. Phase II studies were most frequent (55%), and we were unable to identify a Phase III study. The National Comprehensive Cancer Network's classifications were most frequently used as criteria for BRPC, although resectability status is not standardized. Radiological central review was used in three of eight multi-institutional studies. Assessing on-going or planned clinical trials for BRPC, administration of oxaliplatin, irinotecan, fluorouracil and leucovorin therapy or albumin-bound paclitaxel plus gemcitabine therapy, and randomized trials that evaluate the significance of CRT or RT combined with CT were identified as important topics for further consideration. Although standardization of classifications and improvement of infrastructure are required, a standard treatment of BRPC will likely be developed, which will improve prognosis in the near future because several important randomized trials are running. PMID- 29340602 TI - Emergence of blaCTX-M-55 associated with fosA, rmtB and mcr gene variants in Escherichia coli from various animal species in France. AB - Objectives: In Asian countries, blaCTX-M-55 is the second most common ESBL encoding gene. blaCTX-M-55 frequently co-localizes with fosA and rmtB genes on epidemic plasmids, which remain sporadic outside Asia. During 2010-13, we investigated CTX-M-55-producing Escherichia coli isolates and their co-resistance to fosfomycin, aminoglycosides, fluoroquinolones and colistin as part of a global survey of ESBLs in animals in France. Methods: blaCTX-M-55, fosA, rmtB and plasmidic quinolone and colistin resistance genes were characterized by PCR, sequencing and hybridization experiments. Plasmids were classified according to their incompatibility groups and subtypes. Genotyping was performed by MLST and repetitive extragenic palindromic sequence-based PCR. Results: Twenty-one E. coli isolates from bovines (n = 16), dogs (n = 2), horses (n = 2) and a monkey harboured blaCTX-M-55, were MDR and belonged to ST744 (n = 9) and 10 other clones. blaCTX-M-55 was mostly located on IncF (n = 19), but also on IncI1 (n = 2) plasmids. On IncF33:A1:B1 plasmids, blaCTX-M-55 co-localized with the rmtB and aac(6')-Ib genes and in one isolate with the fosA3 allele. Ten IncF46:A-:B20 plasmids, which were found in different clones from unrelated animals, also carried the mcr-3 gene. blaCTX-M-55-carrying IncF18:A-:B1 plasmids were found in different animal species from distinct locations and periods, and one additionally carried the fosA4 gene. One isolate harboured the mcr-1 gene, which did not co-localize with blaCTX-M-55. Conclusions: A large diversity of E. coli clones and plasmid types supported the spread of blaCTX-M-55, together with atypical resistance genes, in various animal species in France. fosA and rmtB genes are emerging among animals in Europe and this issue is of concern for public health. PMID- 29340594 TI - Keratan sulfate, a complex glycosaminoglycan with unique functional capability. AB - From an evolutionary perspective keratan sulfate (KS) is the newest glycosaminoglycan (GAG) but the least understood. KS is a sophisticated molecule with a diverse structure, and unique functional roles continue to be uncovered for this GAG. The cornea is the richest tissue source of KS in the human body but the central and peripheral nervous systems also contain significant levels of KS and a diverse range of KS-proteoglycans with essential functional roles. KS also displays important cell regulatory properties in epithelial and mesenchymal tissues and in bone and in tumor development of diagnostic and prognostic utility. Corneal KS-I displays variable degrees of sulfation along the KS chain ranging from non-sulfated polylactosamine, mono-sulfated and disulfated disaccharide regions. Skeletal KS-II is almost completely sulfated consisting of disulfated disaccharides interrupted by occasional mono-sulfated N acetyllactosamine residues. KS-III also contains highly sulfated KS disaccharides but differs from KS-I and KS-II through 2-O-mannose linkage to serine or threonine core protein residues on proteoglycans such as phosphacan and abakan in brain tissue. Historically, the major emphasis on the biology of KS has focused on its sulfated regions for good reason. The sulfation motifs on KS convey important molecular recognition information and direct cell behavior through a number of interactive proteins. Emerging evidence also suggest functional roles for the poly-N-acetyllactosamine regions of KS requiring further investigation. Thus further research is warranted to better understand the complexities of KS. PMID- 29340603 TI - Characterization of Antibiosis to Diabrotica speciosa (Coleoptera: Chrysomelidae) in Brazilian Maize Landraces. AB - Resistance to insect pests can be found in several native, landrace plants and can be an important alternative to conventional control methods. Diabrotica speciosa (Germar) (Coleoptera: Chrysomelidae) larvae are important maize (Zea mays L.) (Cyperales: Poaceae) root pests and finding native resistance in landraces would greatly contribute to maize-breeding programs aimed at controlling this pest. This study investigated whether the growth, survival, oviposition rhythm, fecundity, and fertility of D. speciosa are negatively influenced by specific maize landraces, and the existence of any morphological barriers in the roots that may correlate with plant resistance to the larval attack. Nineteen genotypes (17 landraces and 2 cultivars) were screened for antibiosis in assays that were conducted in the laboratory using seedling maize plants where the development time, longevity, weight, total survival, and sex ratio of adults were evaluated. Out of nineteen genotypes, eight were selected according to their resistance levels for an additional rearing study evaluating oviposition and fecundity. Landrace Perola and cultivar SCS 154-Fortuna were classified as resistant because they increased the maturation period from larva to adult and decreased survivorship; and the landrace Palha Roxa was also classified as resistant for showing a lower fertility rate than other landraces. Resistant landraces that were infested by D. speciosa larvae showed greater amounts of some morphological barriers comparing with uninfested plants. The landraces classified as resistant may be considered in future plant-breeding programs, aiming to develop resistant maize cultivars to D. speciosa larval attack. PMID- 29340605 TI - We can do better: a fresh look at echinocandin dosing. PMID- 29340604 TI - Transient recruitment of M-Ras GTPase to phagocytic cups in RAW264 macrophages during FcgammaR-mediated phagocytosis. AB - M-Ras, a member of the Ras superfamily, is known to be involved in diverse cellular processes. However, its involvement in FcgammaR-mediated phagocytosis remains unknown. We examined the spatiotemporal localization of M-Ras during the engulfment of IgG-opsonized erythrocytes (IgG-Es) in RAW264 macrophages. By the live-cell imaging of fluorescent protein-fused M-Ras, we found that M-Ras was localized to the membrane of phagocytic cups during the early stage of phagosome formation. Notably, ratiometric image analysis revealed that M-Ras was concentrated in the membrane of forming phagosomes. Moreover, our analysis of M Ras mutant expression showed that phagosome formation was significantly inhibited in cells expressing GDP-locked mutant M-Ras-S27N. In contrast, the expression of wild-type M-Ras or GTP-locked mutant M-Ras-G22V facilitated the uptake of IgG-Es. These data suggest that M-Ras is a novel component of the FcgammaR-mediated phagocytic pathway and may regulate phagosome formation in macrophages. PMID- 29340606 TI - Leaves, not roots or floral tissue, are the main site of rapid, external pressure induced ABA biosynthesis in angiosperms. AB - Rapid biosynthesis of abscisic acid (ABA) in the leaf, triggered by a decrease in cell volume, is essential for a functional stomatal response. However, it is not known whether rapid biosynthesis of ABA is also triggered in other plant tissues. Through the application of external pressure to flower, root, and leaf tissues, we test whether a reduction in cell volume can trigger rapid increases in ABA levels across the plant body in two species, Solanum lycopersicum and Passiflora tarminiana. Our results show that, in contrast to rapid ABA synthesis in the leaf, flower and root tissue did not show a significant, increase in ABA level in response to a drop in cell volume over a short time frame, suggesting that rapid ABA biosynthesis occurs only in leaf, not in flower or root tissues. A gene encoding the key, rate-limiting carotenoid cleavage enzyme (9-cis-epoxycarotenoid dioxygenase, NCED) in the ABA biosynthetic pathway in S. lycopersicum, NCED1, was upregulated to a lesser degree in flowers and roots compared with leaves in response to applied pressure. In both species, floral tissues contained substantially lower levels of the NCED substrate 9'-cis-neoxanthin than leaves, and this ABA precursor could not be detected in roots. Slow and minimal ABA biosynthesis was detected after 2 h in petals, indicating that floral tissue is capable of synthesizing ABA in response to sustained water deficit. Our results indicate that rapid ABA biosynthesis predominantly occurs in the leaves, and not in other tissues. PMID- 29340607 TI - Collection efficiency and acceptance maps of electron detectors for understanding signal detection on modern scanning electron microscopy. AB - Collection efficiency and acceptance maps of typical detectors in modern scanning electron microscopes (SEMs) were investigated. Secondary and backscattered electron trajectories from a specimen to through-the-lens and under-the-lens detectors placed on an electron optical axis and an Everhart-Thornley detector mounted on a specimen chamber were simulated three-dimensionally. The acceptance maps were drawn as the relationship between the energy and angle of collected electrons under different working distances. The collection efficiency considering the detector sensitivity was also estimated for the various working distances. These data indicated that the acceptance maps and collection efficiency are keys to understand the detection mechanism and image contrast for each detector in the modern SEMs. Furthermore, the working distance is the dominant parameter because electron trajectories are drastically changed with the working distance. PMID- 29340608 TI - Could Increasing Cancer Incidence Be Tied to Human Adaptation of Living in Extreme Environments? PMID- 29340609 TI - Impact of antibiotic stewardship programmes in Asia: a systematic review and meta analysis. AB - Background: The use of antibiotic stewardship programmes (ASPs) is increasing in Asia, but their effectiveness in reducing antibiotic consumption and their impact on clinical outcomes is not known. Objectives: To determine the impact of ASPs conducted in Asia on the consumption of antibiotics and on patients' clinical outcomes. Methods: We systematically searched the Embase and Medline (PubMed) databases for studies that compared antibiotic consumption or clinical outcomes of patients in an Asian hospital or clinic with an ASP (intervention) with those in a similar setting without an ASP (control). Meta-analyses of all-cause mortality and hospital-acquired infection (HAI) were performed using random effects models. Results: The search identified 77 studies of which 22 and 19 reported antibiotic usage and cost, respectively. Among these, 20 (91%) studies reported reduced antibiotic usage and 19 (100%) reported cost savings in the intervention group. Duration of antibiotic therapy was reduced in six of seven studies in association with an ASP. Rates of all-cause mortality and HAI were not significantly different between the intervention and control groups. However, mortality rates were significantly improved by ASPs using drug monitoring, while HAI rates were also improved by ASPs that included infection control or hand hygiene programmes. Conclusions: In Asia, ASPs reduce antibiotic consumption in hospital and clinic settings and do not worsen clinical outcomes. The findings strongly support the broad implementation of antimicrobial stewardship interventions in hospital and clinic settings in Asia. PMID- 29340610 TI - Preclinical [18F]tetrafluoroborate-PET/CT imaging of pituitary gland hyperplasia. PMID- 29340611 TI - Treatment of Nasal Deviation With Underlying Bony Asymmetry Secondary to Augmentation Rhinoplasty in Asian Patients. AB - Background: In Asian patients, nasal deviation secondary to augmentation rhinoplasty may result from underlying bony asymmetry that was not corrected intraoperatively. Diagnosis and treatment of this condition are complicated by the masking effect of dorsal implants. Objectives: The authors applied computed tomography (CT) to examine the causes of nasal deviation after augmentation rhinoplasty. CT results were utilized in preoperative planning for revisional surgery. Methods: Fifteen women with nasal deviation after augmentation rhinoplasty and CT-confirmed bony asymmetry were included in a retrospective study. To correct nasal deviation, the authors performed revisional rhinoplasty with paramedian osteotomy and unilateral placement of extended spreader grafts at the concave side of the keystone region. For patients with concomitant glabella radix deviation, implants comprising expanded polytetrafluoroethylene or autologous fascia were placed. Results: Of the 15 patients with nasal bony asymmetry, 14 had developmental keystone asymmetry, and 1 had osteotomy-induced keystone deviation. Six patients had developmental glabella asymmetry. Patients received follow-up for an average of 11.2 months (range, 6-24 months). Revisional procedures were considered successful in 13 patients; 2 patients required additional surgery to address residual nasal deviation. Conclusions: CT is valuable for the diagnosis of post-augmentation nasal deviation owing to underlying bony asymmetry. Paramedian osteotomy with extended spreader grafting at the concave side of the keystone area and correction of the glabella-radix deviation are effective procedures to reposition the nasal axis along the midline of the face. PMID- 29340612 TI - Rice Field Spiders in China: A Review of the Literature. AB - Many laboratory and field studies have been conducted on rice field spiders in China. There are 375 species, 108 genera, and 22 families of rice field spiders distributed within the major rice growing areas and 17 dominant species. The biological and ecological characteristics of 17 rice field spider species have been reported in detail. The biology and ecology of these species show significant differences among regions, farmland habitats, and agricultural practices. Future research should focus on rice field habitat diversity, enhancing the insecticide resistance of dominant spider populations, implementing large-scale breeding of spiders and augmentative release, breeding more leaf dominant species, conducting biosafety assessment of spiders in transgenic crops. PMID- 29340613 TI - Biomass increase under zinc deficiency caused by delay of early flowering in Arabidopsis. AB - Plants generally produce more biomass when all nutrients are available in sufficient amounts. In addition to environmental constraints, genetic and developmental factors, such as the transition from vegetative to reproductive growth, restrict maximal biomass yield. Here, we report the peculiar observation that a subset of Arabidopsis thaliana accessions produced larger shoot rosette diameters when grown in zinc (Zn)-deficient conditions, compared with Zn sufficient conditions. This was associated with early flowering that restricted the leaf length under Zn sufficiency. Zinc deficiency repressed the expression of FLOWERING LOCUS T (FT), which encodes a major regulator of flowering. Repression or loss of FT increased the rosette diameter via a delay of the transition to flowering, a longer phase of leaf growth, and an increased leaf number. The transition to flowering reduced, but did not terminate, the proliferation of established leaves. The size of individual leaf mesophyll cells was not affected by Zn deficiency or by loss of FT, indicating that the larger rosette diameter was caused by maintained proliferation of vegetative tissue. As a consequence, early-flowering accessions under Zn deficiency grew to have larger rosette diameters due to a delay of flowering, which explains the unusual increase of vegetative biomass under nutrient deficiency. PMID- 29340614 TI - Association of Polygenic Risk Score With Cognitive Decline and Motor Progression in Parkinson Disease. AB - Importance: Genetic factors have a well-known influence on Parkinson disease (PD) susceptibility. The largest genome-wide association study (GWAS) identified 26 independent single-nucleotide polymorphisms (SNPs) associated with PD risk. Among patients, the course and severity of symptom progression is variable, and little is known about the potential association of genetic factors with phenotypic variance. Objective: To assess whether GWAS-identified PD risk SNPs also have a cumulative association with the progression of cognitive and motor symptoms in patients with PD. Design, Setting, and Participants: This longitudinal population based cohort study of 285 patients of European ancestry with incident PD genotyped 23 GWAS SNPs. One hundred ninety-nine patients were followed up for a mean (SD) of 5.3 (2.1) years for progression (baseline: June 1, 2001, through November 31, 2007; follow-up: June 1, 2007, through August 31, 2013, with mortality surveillance through December 31, 2016); 57 patients had died or were too ill for follow-up, and 29 withdrew or could not be contacted. Movement disorder specialists repeatedly assessed PD symptom progression. Main Outcomes Measures: The combined association of PD risk loci, after creating a weighted polygenic risk score (PRS), with cognitive decline, motor progression, and survival, relying on Cox proportional hazards regression models and inverse probability weights to account for censoring. Results: Of the 285 patients undergoing genotyping, 160 were men (56.1%) and 125 were women (43.9%); the mean (SD) age at diagnosis was 69.1 (10.4) years. The weighted PRS was associated with significantly faster cognitive decline, measured by change in the Mini-Mental State Examination (hazard ratio [HR] per 1 SD, 1.44; 95% CI, 1.00-2.07). The PRS was also associated with faster motor decline, measured by time to Hoehn & Yahr Scale stage 3 (HR, 1.34; 95% CI, 1.00-1.79) and change in Unified Parkinson's Disease Rating Scale part III score (HR, 1.42; 95% CI, 1.00-2.01). Conclusions and Relevance: Susceptibility SNPs for PD combined with a cumulative PRS were associated with faster motor and cognitive decline in patients. Thus, these genetic markers may be associated with not only PD susceptibility but also disease progression in multiple domains. PMID- 29340615 TI - A simple method to detect the tandem repeat of the cyp51A promoter in azole resistant strains of Aspergillus fumigatus. AB - We designed primers and cycling probes to detect the tandem repeat (TR) of cyp51A promoter in Aspergillus fumigatus. A control-probe was designed to anneal to the outside of the TR region, whereas a TR-probe was designed to anneal to the inside of the TR region. For amplification and probe-hydrolysis detection, the CycleavePCR system was used. Although the difference between Ct values of the wild-type genome for the control-probe and the TR-probe was around -0.1, the difference between Ct values of TR-harboring strains was around 0.7. These data indicate that this is a simple method to detect TR in azole-resistant A. fumigatus. PMID- 29340616 TI - PyChimera: use UCSF Chimera modules in any Python 2.7 project. AB - Motivation: UCSF Chimera is a powerful visualization tool remarkably present in the computational chemistry and structural biology communities. Built on a C++ core wrapped under a Python 2.7 environment, one could expect to easily import UCSF Chimera's arsenal of resources in custom scripts or software projects. Nonetheless, this is not readily possible if the script is not executed within UCSF Chimera due to the isolation of the platform. UCSF ChimeraX, successor to the original Chimera, partially solves the problem but yet major upgrades need to be undergone so that this updated version can offer all UCSF Chimera features. Results: PyChimera has been developed to overcome these limitations and provide access to the UCSF Chimera codebase from any Python 2.7 interpreter, including interactive programming with tools like IPython and Jupyter Notebooks, making it easier to use with additional third-party software. Availability and implementation: PyChimera is LGPL-licensed and available at https://github.com/insilichem/pychimera. Contact: jaime.rodriguezguerra@uab.cat or jeandidier.marechal@uab.cat. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29340617 TI - Facial Herpes Zoster Following Rhinoplasty: A Rare Complication. PMID- 29340619 TI - Recurrent serious infections in patients with rheumatoid arthritis-results from the British Society for Rheumatology Biologics Register. AB - Objectives: To establish the rate of recurrent infection in RA patients recruited to the British Society for Rheumatology Biologics Register - Rheumatoid Arthritis. Secondary objectives were to establish whether the organ class of index infection predicted future serious infection (SI). Methods: Using data from the British Society for Rheumatology Biologics Register - Rheumatoid Arthritis, a prospective observational cohort, we identified patients with at least one episode of SI. Incidence rates of SI, recurrent SI within the same organ class as the index infection and recurrent SI (of any class) were calculated. A Cox proportional hazards model was used to identify predictors of SI. Results: In total, 5289 subjects with at least one SI contributing 19 431 patient-years follow-up were studied. The baseline annual rate of first SI was 4.6% (95% CI: 4.5, 4.7), increasing to 14.1% (95% CI: 13.5, 14.8) following an index infection. Respiratory infections were the most frequent (44% of all events). Recurrent infections mirrored the organ class of the index infection. Sepsis, increasing age and polypharmacy were significant predictors of infection recurrence in a fully adjusted model. The system class of index infection was associated with the risk of a recurrent event; subjects who experienced sepsis had the highest risk of subsequent SI within 12 months, 19.7% (95% CI: 15.1, 25.7). Conclusion: Recurrent infections in RA are common. Understanding patterns and predictors of recurrent infection together with the differential infection risk associated with immunosuppressive agents will help personalize RA care, tailor treatment choices better and mitigate against episodes of SI. PMID- 29340618 TI - Mitochondrial Toxicity. AB - Recent decades have seen a rapid increase in reported toxic effects of drugs and pollutants on mitochondria. Researchers have also documented many genetic differences leading to mitochondrial diseases, currently reported to affect ~1 person in 4,300, creating a large number of potential gene-environment interactions in mitochondrial toxicity. We briefly review this history, and then highlight cutting-edge areas of mitochondrial research including the role of mitochondrial reactive oxygen species in signaling; increased understanding of fundamental biological processes involved in mitochondrial homeostasis (DNA maintenance and mutagenesis, mitochondrial stress response pathways, fusion and fission, autophagy and biogenesis, and exocytosis); systemic effects resulting from mitochondrial stresses in specific cell types; mitochondrial involvement in immune function; the growing evidence of long-term effects of mitochondrial toxicity; mitochondrial-epigenetic cross-talk; and newer approaches to test chemicals for mitochondrial toxicity. We also discuss the potential importance of hormetic effects of mitochondrial stressors. Finally, we comment on future areas of research we consider critical for mitochondrial toxicology, including increased integration of clinical, experimental laboratory, and epidemiological (human and wildlife) studies; improved understanding of biomarkers in the human population; and incorporation of other factors that affect mitochondria, such as diet, exercise, age, and nonchemical stressors. PMID- 29340620 TI - Delivery of Tapasin-modified CTL epitope peptide via cytoplasmic transduction peptide induces CTLs by JAK/STAT signaling pathway in vivo. AB - Hepatitis B virus (HBV)-specific cytotoxic T lymphocytes (CTLs) play a vital role in viral control and clearance. Recent studies have elucidated that Tapasin, an endoplasmic reticulum chaperone, is a well-known molecule that appears to be essential in peptide-loading process. The Janus kinase/signal transducers and activators of transcription (JAK/STAT) pathway plays an important role in immune response regulation and cytokines secretion. We have previously verified that fusion protein CTP-HBcAg18-27-Tapasin could facilitate the maturation of bone marrow derived dendritic cells and enhance specific CTLs responses in vitro, which might be associated with the activation of JAK/STAT signaling pathway. To further explore whether JAK/STAT signaling pathway participated in specific immune responses mediated by CTP-HBcAg18-27-Tapasin, we suppressed the JAK/STAT pathway with pharmacological inhibitor (AG490) in vivo. Our studies showed that the number of IFN-gamma+-CD8+ T cells was decreased significantly compared with other groups after being blocked by AG490. The percentage of IFN-gamma+-CD4+ T cells and IL-2-CD4+ T cells was also decreased. Moreover, lower expression levels of Jak2, Tyk2, STAT1, and STAT4 were detected in AG490 group. In addition, the secretion levels of Th1-like cytokines were decreased and a weaker specific T cell response was observed in AG490 group. Furthermore, the levels of HBV DNA and HBsAg in serum and expression levels of HBsAg and HBcAg in liver tissues were elevated after this pathway was inhibited in HBV transgenic mice. These results demonstrate that the JAK/STAT signaling pathway participates in Th1-oriented immune response induced by CTP-HBcAg18-27-Tapasin and this might provide a theoretical basis for HBV immunotherapy. PMID- 29340621 TI - Examining Exposure Assessment in Shift Work Research: A Study on Depression Among Nurses. AB - Introduction: Coarse exposure assessment and assignment is a common issue facing epidemiological studies of shift work. Such measures ignore a number of exposure characteristics that may impact on health, increasing the likelihood of biased effect estimates and masked exposure-response relationships. To demonstrate the impacts of exposure assessment precision in shift work research, this study investigated relationships between work schedule and depression in a large survey of Canadian nurses. Methods: The Canadian 2005 National Survey of the Work and Health of Nurses provided the analytic sample (n = 11450). Relationships between work schedule and depression were assessed using logistic regression models with high, moderate, and low-precision exposure groupings. The high-precision grouping described shift timing and rotation frequency, the moderate-precision grouping described shift timing, and the low-precision grouping described the presence/absence of shift work. Final model estimates were adjusted for the potential confounding effects of demographic and work variables, and bootstrap weights were used to generate sampling variances that accounted for the survey sample design. Results: The high-precision exposure grouping model showed the strongest relationships between work schedule and depression, with increased odds ratios [ORs] for rapidly rotating (OR = 1.51, 95% confidence interval [CI] = 0.91 2.51) and undefined rotating (OR = 1.67, 95% CI = 0.92-3.02) shift workers, and a decreased OR for depression in slow rotating (OR = 0.79, 95% CI = 0.57-1.08) shift workers. For the low- and moderate-precision exposure grouping models, weak relationships were observed for all work schedule categories (OR range 0.95 to 0.99). Conclusions: Findings from this study support the need to consider and collect the data required for precise and conceptually driven exposure assessment and assignment in future studies of shift work and health. Further research into the effects of shift rotation frequency on depression is also recommended. PMID- 29340622 TI - Comment on: Cryofibrinogenaemia-a neglected disease. PMID- 29340624 TI - Early and long-term outcomes of mitral valve repair for Barlow's disease: a single-centre 16-year experience. AB - OBJECTIVES: Following mitral valve repair for Barlow's disease, recurrent mitral regurgitation (MR) is believed to occur frequently and is mainly attributed to disease progression. METHODS: Between January 2000 and December 2015, 180 patients (40% women, mean age 58.7 +/- 13.5 years) with Barlow's disease underwent mitral valve repair. To provide a longitudinal assessment of mitral valve repair durability, a multistate model for interval-censored observations (4 states: 1, Grade 0/1+ MR; 2, Grade 2+ MR; 3, Grade 3+/4+ MR; 4, reintervention/death) was developed. The mechanism of recurrent MR was assessed echocardiographically. RESULTS: Early mortality was 1.7%. After hospital discharge, 6 late reinterventions were performed. With death as a competing risk, the 10-year overall reintervention-free survival and reintervention rates were 79.8% (95% confidence interval 72.7-87.6%) and 4.5% (95% confidence interval 2.0 10.2%), respectively. Echocardiographic follow-up was available for 165 (93%) of hospital survivors with a total of 480 examinations. The incidence of both recurrent Grade 2+ and Grade 3+/4+ MR was relatively low up to 10 years after surgery. Grade 2+ MR did not always progress to higher regurgitation grade during the follow-up period. Grade 3+/4+ regurgitation was highly associated with valve related morbidity and mortality. Recurrent MR (>=Grade 2+) was predominantly related to the technical aspects of valve repair. CONCLUSIONS: Despite the complex valve abnormalities observed in patients with Barlow's disease, mitral valve repair can be performed with good early and late outcomes and low rates of recurrence of MR up to 10 years after surgery. Early and late valve repair durability is good and remains stable over time, suggesting that underlying disease progression has limited clinical significance. PMID- 29340623 TI - Pharmacokinetics of rituximab and clinical outcomes in patients with anti neutrophil cytoplasmic antibody associated vasculitis. AB - Objectives: To study the determinants of the pharmacokinetics (PK) of rituximab (RTX) in patients with ANCA-associated vasculitis (AAV) and its association with clinical outcomes. Methods: This study included data from 89 patients from the RTX in AAV trial who received the full dose of RTX (four weekly infusions of 375 mg/m2). RTX was quantified at weeks 2, 4, 8, 16 and 24, and summarized by computing the trapezoidal area under the curve. We explored potential determinants of the PK-RTX, and analysed its association with clinical outcomes: achievement of remission at 6 months, duration of B-cell depletion and time to relapse in patients who achieved complete remission. Results: RTX serum levels were significantly lower in males and in newly diagnosed patients, and negatively correlated with body surface area, baseline B-cell count and degree of disease activity. In multivariate analyses, the main determinants of PK-RTX were sex and new diagnosis. Patients reaching complete remission at month 6 had similar RTX levels compared with patients who did not reach complete remission. Patients with higher RTX levels generally experienced longer B-cell depletion than patients with lower levels, but RTX levels at the different time points and area under the curve were not associated with time to relapse. Conclusion: Despite the body surface-area-based dosing protocol, PK-RTX is highly variable among patients with AAV, its main determinants being sex and newly diagnosed disease. We did not observe any relevant association between PK-RTX and clinical outcomes. The monitoring of serum RTX levels does not seem clinically useful in AAV. PMID- 29340625 TI - Seen through the patients' eyes: surgical safety and checklists. AB - Objective: We sought to explore the views patients have towards surgical safety and checklists. As a secondary aim, we explored if previous experience of error or other patient characteristics influence these views. Design: A cross-sectional survey study design was applied. Participants: The Flemish Patients' Platform network and social media were used to recruit participants. Main outcome measure(s): An 11-item questionnaire was designed to assess the following constructs: perception of surgical safety, attitudes towards the WHO surgical safety checklist and attitudes regarding checklist usage. Results: Respondents' view (N = 444) on the risk of an adverse event showed considerable variation. Respondents were positive towards the checklist, strongly agreeing that it would impact positively on their safety. However, this positive perception did not translate into an attitude where patients will actively inform themselves whether a checklist is used. The majority of respondents have no difficulty with repetitive verification of identity, procedure and location of the surgery. Respondents with a clinical background were the least anxious. Views were divided regarding hearing discussions around blood loss or airway problems. Conclusions: Patients perceive the checklist as a reliable safety tool. They do not mind repetitive verification of identity and procedure. However, hearing staff discussing specific, explicit, risks could cause anxiousness in some patients. Building a supportive and collaborative environment is needed to involve and empower patients to contribute in the realization of a safe hospital environment. PMID- 29340626 TI - Suppression of NLRP3 inflammasome by oral treatment with sulforaphane alleviates acute gouty inflammation. AB - Objective: The aetiology of gout is closely linked to the deposition of monosodium uric acid (MSU) crystals and the consequent activation of the NOD-like receptor family, pyrin domain containing 3 (NLRP3) inflammasome. In this study, we investigated whether oral administration of an NLRP3 inhibitor would be effective to attenuate the symptoms of gout. Methods: The effects of oral administration with sulforaphane (SFN) were examined in two mouse models of acute gout induced by injection of MSU crystals into footpads or air pouch. The production of caspase-1 (p10) and IL-1beta was examined by immunoblotting and ELISA as hallmarks of NLRP3 inflammasome activation. Results: Oral administration of SFN attenuated MSU crystal-induced swelling and neutrophil recruitment in a mouse foot acute gout model, correlating with the suppression of the NLRP3 inflammasome activation in foot tissues. Consistently, oral administration of SFN blocked MSU-crystal-induced activation of the NLRP3 inflammasome in a mouse air pouch gout model. SFN suppressed NLRP3 inflammasome activation induced by MSU crystals, adenosine triphosphate and nigericin but not by poly(dA:dT) in primary mouse macrophages, independent of the reactive oxygen species pathway. SFN inhibited ligand-independent activation of the NLRP3 inflammasome, suggesting that SFN may act directly on the NLRP3 inflammasome complex. Conclusion: Oral administration of SFN effectively alleviated acute gouty inflammation by suppression of the NLRP3 inflammasome. Our results provide a novel strategy in which oral treatment with SFN may be beneficial in preventing acute attacks of gout. PMID- 29340627 TI - In search of a diagnostic test for polymyalgia rheumatica: is positron emission tomography the answer? PMID- 29340628 TI - The Importance of Umbilical Blood Supply and Umbilical Delay in Secondary Abdominoplasty: A Case Report. AB - The umbilicus is an important aesthetic landmark of the abdomen. It possesses a dual blood supply that allows it to survive either on its stalk if the skin surrounding the umbilicus is incised, or through the surrounding subdermal circulation if the stalk is transected. This is an important concept to consider in order to avoid umbilical ischemia and necrosis during abdominoplasty, especially if there is any past surgical history suggesting alteration to its blood supply. This case study depicts this importance and the importance of the use of delay in order to improve perfusion to the umbilicus prior to secondary abdominoplasty. In this case, a 47-year-old woman had undergone abdominoplasty two years previously and requested further improvement of her abdominal contour. At her original operation, the umbilical stalk was transected during hernia repair and the umbilicus was "floated" inferiorly to its new position. Thus, during her second revisionary abdominoplasty, it was crucial to consider the adequacy of umbilical blood supply to minimize and avoid the possibility of ischemic necrosis of the umbilicus due to alteration of umbilical blood supply. Therefore, a delay procedure of the umbilicus was performed. This case report emphasizes the need for proper consideration of umbilical blood supply, and delay of the umbilicus if alterations to its normal blood supply are known to be present or suspected to exist. PMID- 29340629 TI - DEVELOPMENT OF A SET OF MESH-BASED AND AGE-DEPENDENT CHINESE PHANTOMS AND APPLICATION FOR CT DOSE CALCULATIONS. AB - Phantoms for organ dose calculations are essential in radiation protection dosimetry. This article describes the development of a set of mesh-based and age dependent phantoms for Chinese populations using reference data recommended by the Chinese government and by the International Atomic Energy Agency (IAEA). Existing mesh-based RPI adult male (RPI-AM) and RPI adult female (RPI-AF) phantoms were deformed to form new phantoms according to anatomical data for the height and weight of Chinese individuals of 5 years old male, 5 years old female, 10 years old male, 10 years old female,15 years old male, 15 years old female, adult male and adult female-named USTC-5 M, USTC-5F, USTC-10M, USTC-10F, USTC 15M, USTC-15F, USTC-AM and USTC-AF, respectively. Following procedures to ensure the accuracy, more than 120 organs/tissues in each model were adjusted to match the Chinese reference parameters and the mass errors were within 0.5%. To demonstrate the usefulness, these new set of phantoms were combined with a fully validated model of the GE LightSpeed Pro 16 multi-detector computed tomography (MDCT) scanner and the GPU-based ARCHER Monte Carlo code to compute organ doses from CT examinations. Organ doses for adult models were then compared with the data of RPI-AM and RPI-AF under the same conditions. The absorbed doses and the effective doses of RPI phantoms are found to be lower than these of the USTC adult phantoms whose body sizes are smaller. Comparisons for the doses among different ages and genders were also made. It was found that teenagers receive more radiation doses than adults do. Such Chinese-specific phantoms are clearly better suited in organ dose studies for the Chinese individuals than phantoms designed for western populations. As already demonstrated, data derived from age specific Chinese phantoms can help CT operators and designers to optimize image quality and doses. PMID- 29340630 TI - Sutureless prosthesis for failed small Mitroflow valves: the Perceval-after Mitroflow procedure. AB - Because of its favourable haemodynamic characteristics and easy implantability, Mitroflow aortic valve bioprosthesis has been the valve of choice for many surgeons in patients with small aortic annulus. Disappointingly, early structural valve deterioration and high transvalvular gradients have been reported mostly in older patients with small prostheses. Reimplanting a new stented prosthesis sutured in a narrow and damaged annulus is technically challenging and demanding mainly in high-risk patients. Valve-in-valve transcatheter aortic valve implantation has been proposed as a viable option; however, it presents significant limitations because of residual high transprosthetic pressure gradients and risk of coronary occlusion. We report a series of 8 patients, with medium-term follow-up, who underwent successful Perceval-S surgical sutureless aortic implant after the removal of a degenerated small Mitroflow valve. No early mortality occurred, but 1 patient died 4 months postoperatively due to gastrointestinal disease. No major complications occurred. Early and mid-term postoperative pressure gradients were low (mean gradients 13.1 +/- 3.3 mmHg and 10.2 +/- 3.8 mmHg, respectively). In operable patients with a degenerated Mitroflow valve, these favourable clinical and haemodynamic results suggest that the sutureless solution is a simple, valid and safer alternative to conventional redo valve replacement or to valve-in-valve transcatheter aortic valve implantation. PMID- 29340631 TI - A better understanding of ambulance personnel's attitude towards real-time resuscitation feedback. AB - Objective: High-quality chest compressions during cardiopulmonary resuscitation (CPR) play a significant role in surviving cardiac arrest. Chest-compression quality can be measured and corrected by real-time CPR feedback devices, which are not yet commonly used. This article looks at the acceptance of such systems in comparison of equipped and unequipped personnel. Design: Two groups of emergency medical services' (EMS) personnel were interviewed using standardized questionnaires. Setting: The survey was conducted in the German cities Dortmund and Munster. Participants: Overall, 205 persons participated in the survey: 103 paramedics and emergency physicians from the Dortmund fire service and 102 personnel from the Munster service. Intervention: The staff of the Dortmund service were not equipped with real-time feedback systems. The test group of equipped personnel of the ambulance service of Munster Fire brigade uses real time feedback systems since 2007. Main outcome measure: What is the acceptance level of real-time feedback systems? Are there differences between equipped and unequipped personnel? Results: The total sample is receptive towards real-time feedback systems. More than 80% deem the system useful. However, this study revealed concerns and prejudices by unequipped personnel. Negative ratings are significantly lower at the Munster site that is experienced with the use of the real-time feedback system in contrast to the Dortmund site where no such experience exists-the system's use in daily routine results in better evaluation than the expectations of unequipped personnel. Conclusions: Real-time feedback systems receive overall positive ratings. Prejudices and concerns seem to decrease with continued use of the system. PMID- 29340632 TI - Developing a set of indicators to monitor quality in ambulatory diabetes care using a modified Delphi panel process. AB - Objective: There is a large evidence to practice gap in diabetes care with limited performance assessments that capture the full spectrum of care delivery. Our study aimed to develop a set of ambulatory diabetes quality indicators across six domains (effectiveness, safety, patient-centered, timely, equitable and efficient) to provide a broad view of quality. Design: A modified Delphi panel process was conducted. Phase I involved compiling a list of indicators through literature review and generation of patient and healthcare provider-derived indicators through interviews and surveys, respectively. Phase II involved panelists rating indicators using the Agency for Healthcare Research and Quality measure attributes on 9-point Likert scale, attending a face-to-face meeting followed by re-rating, and final ranking. Setting: This study was conducted across five adult academic medical centers affiliated with the University of Toronto. Participants: A multi-disciplinary Delphi panel (n = 16) including patients was assembled. Main Outcome measure: For indicator advancement for ranking, >=75% of panelists' responses in the top tertile (between 7 and 9) with a median composite score of >=7 was required. Results: There were 202 indicators included in the Delphi panel process including 171 from a comprehensive literature review, 14 from patient interviews, and 17 from healthcare provider surveys. Following the first round, 40 indicators proceeded directly to ranking, while 162 indicators were re-rated and distilled down to 12 for ranking. In the final ranking round, the 52 indicators were reduced to 35 including 13 effective, 10 safe, 6 patient-centered, 1 equitable, 3 efficient and 2 timely indicators. Conclusion: Thirty-five selected indicators developed with broad stakeholder engagement can be used to monitor quality in diabetes care. PMID- 29340633 TI - Kinking of an open stent graft after total arch replacement with the frozen elephant technique for acute Type A aortic dissection. AB - Recently, in Japan, the J Graft Open Stent Graft (JOSG) was commercialized for surgical repair of an aortic aneurysm and aortic dissection and the frozen elephant trunk technique was applied. Kinking of the JOSG is a rare adverse event that requires additional intervention. We experienced 2 patients who developed kinking of a JOSG after translocated total arch replacement with the frozen elephant trunk technique for acute Type A aortic dissection. Both patients had intermittent claudication with a decreased ankle-brachial pressure index after the operation. Computed tomography angiography showed kinking between the non stent and stent parts of the JOSG. Therefore, we performed endovascular repair. A severely angulated arch preserved by a translocated technique may lead to kinking of a JOSG. This suggests that the removed non-stent part should be as short as possible to prevent kinking of the JOSG. PMID- 29340634 TI - Efficient decellularization for bovine pericardium with extracellular matrix preservation and good biocompatibility. AB - OBJECTIVES: In this study, we sought to explore an efficient decellularization protocol for bovine pericardia with better extracellular matrix preservation and good biocompatibility. METHODS: Bovine pericardia were decellularized by sodium dodecyl sulphate (SDS), SDS + sodium deoxycholate (SD), Triton X-100 (TX), TX + SD (TS), freeze-thaw cycles + SDS + SD (FSS) and freeze-thaw cycles + TX + SD (FTS), respectively. Untreated pericardia were used as native control. Histological examination, residual cellular content analysis, biochemical and biomechanical evaluations and cytotoxicity assay were performed to investigate decellularization efficiency, xenoantigens removal, extracellular matrix preservation and biocompatibility. In vivo biocompatibility was evaluated using a subcutaneous implantation method in rats. RESULTS: Among these protocols, FSS and FTS protocols were the most effective methods to remove both the DNA material and the galactose-alpha-1,3-galactose antigen. TX, TS and FTS bovine pericardia maintained the collagen content and had no cytotoxicity to human umbilical vein endothelial cells. The contents of elastin and glycosaminoglycan were lost to different degrees after decellularization, with the highest content of preservation with TX, followed by TS and FTS. Consistently, no significant difference was found between native bovine pericardia and TX, TS or FTS bovine pericardia. In vivo, FTS implants had minimal infiltration of macrophages and T lymphocytes, with no histological evidence of peri-implant necrosis and calcification. CONCLUSIONS: These results suggested that the FTS protocol showed optimal decellularization results with better extracellular matrix preservation and good biocompatibility. It may be a suitable protocol for producing a suitable scaffold for heart tissue engineering. PMID- 29340635 TI - Nutrient digestibility response to sugarcane bagasse addition and corn particle size in normal and high Na diets for broilers. AB - Improving diet digestibility is important to the broiler industry. Therefore, this study focused on optimizing the physical structure of feed ingredients and addition of dietary fiber as strategies to improve nutrient digestibility in low and high sodium diets. A total of 672 day-old Ross 308 male broilers was allocated to 48 pens using a 2 * 2 * 2 factorial arrangement of treatments with 2 particle sizes of corn (coarse 3,576 MUm or fine 1,113 MUm geometric mean diameter), 2 levels of sugarcane bagasse (SB) (0 or 2%), and 2 levels of Na (0.16 or 0.4%). Protein digestibility coefficient was measured using pooled distal ileal digesta of 3 birds per pen on d 24. Meanwhile, starch and gross energy digestibility coefficients were measured using pooled duodenal, distal jejunal, and distal ileal digesta of 3 birds per pen on d 24. Coarsely ground corn (CC) resulted in improved ileal protein digestibility (P < 0.05). Addition of 2% SB increased starch digestibility in the duodenum (P < 0.05), distal jejunum (P < 0.001), and distal ileum (P < 0.001), and increased protein digestibility in distal ileum (P < 0.01). A significant particle size * SB * Na interaction was observed for ileal energy digestibility (P < 0.05). The SB increased ileal energy digestibility only in birds fed the diet with finely ground corn (FC) and 0.16% Na. These findings demonstrate that SB and CC are able to improve nutrient digestibility. It can be recommended for the poultry industry to use SB and coarsely ground corn in feed to improve the utilization of nutrients. PMID- 29340636 TI - Changes in Socioeconomic Differences in Hospital Days With Age: Cumulative Disadvantage, Age-as-Leveler, or Both? AB - Objectives: Length of hospital stay is inversely associated with socioeconomic status (SES). It is less clear whether socioeconomic disparities in numbers of hospital days diverge or converge with age. Method: Longitudinal linked Finnish registry data (1988-2007) from 137,653 men and women aged 50-79 years at the end of 1987 were used. Trajectories of annual total hospital days by education, household income, and occupational class were estimated using negative binomial models. Results: Men and women with higher education, household income, and occupational class had fewer hospital days in 1988 than those with lower SES. Hospital days increased between 1988 and 2007. For some age groups, higher SES was associated with a faster annual rate of increase, resulting in narrowing rate ratios of hospital days between SES groups (relative differences); the rate ratios remained stable for other groups. Absolute SES differences in numbers of hospital days appeared to diverge with age among those aged 50-69 years at baseline, but converge among those aged 70-79 years at baseline. Discussion: The hypotheses that socioeconomic disparities in health diverge or converge with age may not be mutually exclusive; we demonstrated convergence/maintenance in relative differences for all age groups, but divergence or convergence in absolute differences depending on age. PMID- 29340637 TI - Cohort Profile: The Swedish Longitudinal Occupational Survey of Health (SLOSH). PMID- 29340638 TI - Dietary energy, digestible lysine, and available phosphorus levels affect growth performance, carcass traits, and amino acid digestibility of broilers. AB - A 3-factor, 3-level Box-Behnken design was used to investigate the interaction effect of dietary digestible lysine (dLys, 9.5, 10.5, 11.5 g/kg), apparent metabolizable energy (AMEn, 12.77, 13.19, 13.61 MJ/kg) and available P (avP, 3.0, 4.0, 5.0 g/kg) levels on performance and amino acid (AA) digestibility of Ross 308 male broilers (n = 1,050) from d 14 to 34. The design consisted of 15 treatments each replicated 5 times with 12 birds per replicate. On d 34, 3 birds were sampled from each pen to collect ileal digesta (pooled per pen) to analyze AA. Response surface was fitted by first-, second-, or third-degree polynomial regressions in JMP statistical software v. 12.0.1. Feed intake (FI), weight gain (WG) and feed conversion ratio (FCR) were affected by dLys (linear and quadratic, P < 0.01), AMEn (linear, P < 0.01) and AMEn * avP (P < 0.01). Increased dLys increased FI but increased AMEn decreased FI in the birds fed the low-avP diet. However, when the avP level in the diet was increased, FI decreased to 13 MJ/kg AMEn and remained constant thereafter. Increased dLys increased WG whereas an increase in AMEn decreased WG in the birds fed the low-avP diet but had no effect on WG in those fed the high-avP diet. Increased dLys decreased FCR whereas increased AMEn decreased FCR in the birds fed the low-avP diet but had no effect on FCR in those fed the high-avP diet. Increased dLys increased breast yield percentage (linear, P < 0.01 and quadratic, P < 0.05) whereas increased AMEn decreased breast yield percentage (linear, P < 0.01). Dietary levels of dLys or avP had positive, linear effects on apparent ileal digestibility (AID) of methionine (P < 0.01) and threonine (P < 0.01) but had no effect on other AA (P > 0.05). These results indicate that increasing dLys levels above current industry standard would improve broiler performance irrespective of AMEn or avP levels of the diet. PMID- 29340640 TI - In Vivo Three-Dimensional Lamina Cribrosa Strains in Healthy, Ocular Hypertensive, and Glaucoma Eyes Following Acute Intraocular Pressure Elevation. AB - Purpose: To compare in vivo lamina cribrosa (LC) strains (deformations) following acute IOP elevation in healthy, glaucoma, and ocular hypertensive subjects. Methods: There were 20 healthy, 20 high-tension primary open-angle glaucoma (POAG), 16 primary angle-closure glaucoma (PACG), and 20 ocular hypertensive (OHT; with normal visual fields) eyes studied. For each test eye, the optic nerve head was imaged three times (at baseline IOP, following an acute elevation of IOP to approximately 35 then 45 mm Hg using an ophthalmodynamomter) using optical coherence tomography (OCT). A three-dimensional (3D) strain-mapping algorithm was applied to both sets of baseline and IOP-elevated OCT volumes to extract IOP induced 3D strains. Octant-wise LC strains were also extracted to study the pattern of local deformation. Results: The average LC strain in OHT subjects (3.96%) was significantly lower than that measured in healthy subjects (6.81%; P < 0.05). On average, POAG subjects experienced higher strain than the PACG subjects (4.05%), healthy subjects experienced higher strains than the POAG and PACG subjects, but these difference were not statistically significant. Local LC deformations showed lowest strain in the infero-temporal and temporal octant in the POAG and OHT subjects. Conclusions: We demonstrate measurable LC strains in vivo in humans as a response to acute IOP elevation. In this population, our data suggest that OHT LCs experience lower IOP-induced strains than healthy LCs. PMID- 29340639 TI - Biomechanical Rigidity and Quantitative Proteomics Analysis of Segmental Regions of the Trabecular Meshwork at Physiologic and Elevated Pressures. AB - Purpose: The extracellular matrix (ECM) of the trabecular meshwork (TM) modulates resistance to aqueous humor outflow, thereby regulating IOP. Glaucoma, a leading cause of irreversible blindness worldwide, is associated with changes in the ECM of the TM. The elastic modulus of glaucomatous TM is larger than age-matched normal TM; however, the biomechanical properties of segmental low (LF) and high flow (HF) TM regions and their response to elevated pressure, are unknown. Methods: We perfused human anterior segments at two pressures using an ex vivo organ culture system. After extraction, we measured the elastic modulus of HF and LF TM regions by atomic force microscopy and quantitated protein differences by proteomics analyses. Results: The elastic modulus of LF regions was 2.3-fold larger than HF regions at physiological (1*) pressure, and 7.4-fold or 3.5-fold larger than HF regions at elevated (2*) pressure after 24 or 72 hours, respectively. Using quantitative proteomics, comparisons were made between HF and LF regions at 1* or 2* pressure. Significant ECM protein differences were observed between LF and HF regions perfused at 2*, and between HF regions at 1* compared to 2* pressures. Decorin, TGF-beta-induced protein, keratocan, lumican, dermatopontin, and thrombospondin 4 were common differential candidates in both comparisons. Conclusions: These data show changes in biomechanical properties of segmental regions within the TM in response to elevated pressure, and levels of specific ECM proteins. Further studies are needed to determine whether these ECM proteins are specifically involved in outflow resistance and IOP homeostasis. PMID- 29340641 TI - Effects of Age-Related Macular Degeneration on Driving Performance. AB - Purpose: To explore differences in driving performance of older adults with age related macular degeneration (AMD) and age-matched controls, and to identify the visual determinants of driving performance in this population. Methods: Participants included 33 older drivers with AMD (mean age [M] = 76.6 +/- 6.1 years; better eye Age-Related Eye Disease Study grades: early [61%] and intermediate [39%]) and 50 age-matched controls (M = 74.6 +/- 5.0 years). Visual tests included visual acuity, contrast sensitivity, visual fields, and motion sensitivity. On-road driving performance was assessed in a dual-brake vehicle by an occupational therapist (masked to drivers' visual status). Outcome measures included driving safety ratings (scale of 1-10, where higher values represented safer driving), types of driving behavior errors, locations at which errors were made, and number of critical errors (CE) requiring an instructor intervention. Results: Drivers with AMD were rated as less safe than controls (4.8 vs. 6.2; P = 0.012); safety ratings were associated with AMD severity (early: 5.5 versus intermediate: 3.7), even after adjusting for age. Drivers with AMD had higher CE rates than controls (1.42 vs. 0.36, respectively; rate ratio 3.05, 95% confidence interval 1.47-6.36, P = 0.003) and exhibited more observation, lane keeping, and gap selection errors and made more errors at traffic light-controlled intersections (P < 0.05). Only motion sensitivity was significantly associated with driving safety in the AMD drivers (P = 0.005). Conclusions: Drivers with early and intermediate AMD can exhibit impairments in their driving performance, particularly during complex driving situations; motion sensitivity was most strongly associated with driving performance. These findings have important implications for assessing the driving ability of older drivers with visual impairment. PMID- 29340642 TI - Identifying Corneal Infections in Formalin-Fixed Specimens Using Next Generation Sequencing. AB - Purpose: We test the ability of next-generation sequencing, combined with computational analysis, to identify a range of organisms causing infectious keratitis. Methods: This retrospective study evaluated 16 cases of infectious keratitis and four control corneas in formalin-fixed tissues from the pathology laboratory. Infectious cases also were analyzed in the microbiology laboratory using culture, polymerase chain reaction, and direct staining. Classified sequence reads were analyzed with two different metagenomics classification engines, Kraken and Centrifuge, and visualized using the Pavian software tool. Results: Sequencing generated 20 to 46 million reads per sample. On average, 96% of the reads were classified as human, 0.3% corresponded to known vectors or contaminant sequences, 1.7% represented microbial sequences, and 2.4% could not be classified. The two computational strategies successfully identified the fungal, bacterial, and amoebal pathogens in most patients, including all four bacterial and mycobacterial cases, five of six fungal cases, three of three Acanthamoeba cases, and one of three herpetic keratitis cases. In several cases, additional potential pathogens also were identified. In one case with cytomegalovirus identified by Kraken and Centrifuge, the virus was confirmed by direct testing, while two where Staphylococcus aureus or cytomegalovirus were identified by Centrifuge but not Kraken could not be confirmed. Confirmation was not attempted for an additional three potential pathogens identified by Kraken and 11 identified by Centrifuge. Conclusions: Next generation sequencing combined with computational analysis can identify a wide range of pathogens in formalin fixed corneal specimens, with potential applications in clinical diagnostics and research. PMID- 29340643 TI - Association of Low Luminance Questionnaire With Objective Functional Measures in Early and Intermediate Age-Related Macular Degeneration. AB - Purpose: To determine whether Low Luminance Questionnaire (LLQ) scores are associated with objective measures of visual function in early and intermediate age-related macular degeneration (AMD). Methods: Cross-sectional study of subjects with early AMD Age-Related Eye Disease Study (AREDS) stage 2, N = 33), intermediate AMD (AREDS stage 3, N = 47), and age-matched healthy controls (N = 21). Subjects were interviewed with the LLQ. Psychophysical tests performed included best-corrected visual acuity (BCVA), mesopic microperimetry, dark adaptometry (DA), low luminance visual acuity (LLVA), and cone contrast test (CCT). Low luminance deficit (LLD) was the difference in the number of letters read under photopic versus low luminance settings. The relationship between LLQ and visual function test scores was assessed with linear regression. Results: Subjects with intermediate AMD had significantly lower LLQ composite scores (mean = 75.8 +/- 16.7; median = 76, range [29, 97]) compared with early AMD (mean = 85.3 +/- 13.3; median = 88, range [50, 100], P = 0.007) or controls (mean = 91.4 +/- 6.5; median = 94, range [79, 99], P < 0.001) in the overall cohort. LLQ composite scores were associated with computerized BCVA (beta = 0.516), computerized LLVA at two background luminance (1.3 cd/m2, beta = 0.660; 0.5 cd/m2, beta = 0.489) along with their respective computerized LLDs (beta = -0.531 and -0.467), rod intercept (beta = -0.312), and CCT green (beta = 0.183) (all P < 0.05). Only the computerized LLVAs and computerized LLDs remained statistically significant after adjusting for AMD versus control status (P < 0.05). Among AMD subjects, LLQ composite scores were significantly associated with the computerized LLVAs (beta = 0.622 and 0.441) and LLDs (beta = -0.795 and -0.477) at both the 1.3 and 0.5 cd/m2 luminance levels, respectively, and these associations remained significant after adjusting for AMD severity (P < 0.05). Conclusions: Among subjects with early and intermediate AMD, LLQ scores were significantly associated with computerized LLVA and LLD. LLQ is a useful patient centered functional measure of visual impairment in early and intermediate AMD. PMID- 29340645 TI - A Plasma Metabolomic Signature Involving Purine Metabolism in Human Optic Atrophy 1 (OPA1)-Related Disorders. AB - Purpose: Dominant optic atrophy (DOA; MIM [Mendelian Inheritance in Man] 165500), resulting in retinal ganglion cell degeneration, is mainly caused by mutations in the optic atrophy 1 (OPA1) gene, which encodes a dynamin guanosine triphosphate (GTP)ase involved in mitochondrial membrane processing. This work aimed at determining whether plasma from OPA1 pathogenic variant carriers displays a specific metabolic signature. Methods: We applied a nontargeted clinical metabolomics pipeline based on ultra-high-pressure liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS) allowing the exploration of 500 polar metabolites in plasma. We compared the plasma metabolic profiles of 25 patients with various OPA1 pathogenic variants and phenotypes to those of 20 healthy controls. Statistical analyses were performed using univariate and multivariate (principal component analysis [PCA], orthogonal partial least squares discriminant analysis [OPLS-DA]) methods and a machine learning approach, the Biosigner algorithm. Results: A robust and relevant predictive model characterizing OPA1 individuals was obtained, based on a complex panel of metabolites with altered concentrations. An impairment of the purine metabolism, including significant differences in xanthine, hypoxanthine, and inosine concentrations, was at the foreground of this signature. In addition, the signature was characterized by differences in urocanate, choline, phosphocholine, glycerate, 1-oleoyl-rac-glycerol, rac-glycerol-1-myristate, aspartate, glutamate, and cystine concentrations. Conclusions: This first metabolic signature reported in the plasma of patient carrying OPA1 pathogenic variants highlights the unexpected involvement of purine metabolism in the pathophysiology of DOA. PMID- 29340646 TI - Visual Fixation Instability in Multiple Sclerosis Measured Using SLO-OCT. AB - Purpose: Precise measurements of visual fixation and its instability were recorded during optical coherence tomography (OCT) as a marker of neural network dysfunction in multiple sclerosis (MS), which could be used to monitor disease progression or response to treatment. Methods: A total of 16 MS patients and 26 normal subjects underwent 30 seconds of scanning laser ophthalmoscope (SLO)-based eye tracking during OCT scanning of retinal layer thickness. Study groups consisted of normal eyes, MS eyes without prior optic neuritis (MS wo ON), and MS eyes with prior optic neuritis (MS + ON). Kernel density estimation quantified fixation instability from the distribution of fixation points on the retina. In MS wo ON eyes, fixation instability was compared to other measures of visual and neurologic function. Results: Fixation instability was increased in MS wo ON eyes (0.062 deg2) compared to normal eyes (0.030 deg2, P = 0.015). A further increase was seen for MS + ON eyes (0.11 deg2) compared to MS wo ON (P = 0.04) and normal (P = 0.006) eyes. Fixation instability correlated weakly with ganglion cell layer (GCL) volume and showed no correlation with low-contrast letter acuity, EDSS score, or SDMT score. Conclusions: Fixation instability reflects the integrity of a widespread neural network germane to visual processing and ocular motor control, and is disturbed in MS. Further study of visual fixation, including the contribution of microsaccades to fixation instability, may provide insight into the localization of fixation abnormalities in MS and introduce innovative and easily measured outcomes for monitoring progression and treatment response. PMID- 29340644 TI - Proteasome Inhibition Increases the Efficiency of Lentiviral Vector-Mediated Transduction of Trabecular Meshwork. AB - Purpose: To determine if proteasome inhibition using MG132 increased the efficiency of FIV vector-mediated transduction in human trabecular meshwork (TM) 1 cells and monkey organ-cultured anterior segments (MOCAS). Methods: TM-1 cells were pretreated for 1 hour with 0.5% dimethyl sulfoxide (DMSO; vehicle control) or 5 to 50 MUM MG132 and transduced with FIV.GFP (green fluorescent protein)- or FIV.mCherry-expressing vector at a multiplicity of transduction (MOT) of 20. At 24 hours, cells were fixed and stained with antibodies for GFP, and positive cells were counted, manually or by fluorescence-activated cell sorting (FACS). Cells transduced with FIV.GFP particles alone were used as controls. The effect of 20 MUM MG132 treatment on high- and low-dose (2 * 107 and 0.8 * 107 transducing units [TU], respectively) FIV.GFP transduction with or without MG132 was also evaluated in MOCAS using fluorescence microscopy. Vector genome equivalents in cells and tissues were quantified by quantitative (q)PCR on DNA. Results: In the MG132 treatment groups, there was a significant dose-dependent increase in the percentage of transduced cells at all concentrations tested. Vector genome equivalents were also increased in TM-1 cells treated with MG132. Increased FIV.GFP expression in the TM was also observed in MOCAS treated with 20 MUM MG132 and the high dose of vector. Vector genome equivalents were also significantly increased in the MOCAS tissues. Increased transduction was not seen with the low dose of virus. Conclusions: Proteasome inhibition increased the transduction efficiency of FIV particles in TM-1 cells and MOCAS and may be a useful adjunct for delivery of therapeutic genes to the TM by lentiviral vectors. PMID- 29340647 TI - Fixation Instability: A New Measure of Neurologic Dysfunction in Multiple Sclerosis. PMID- 29340648 TI - A Novel Strategy for Quantifying Choriocapillaris Flow Voids Using Swept-Source OCT Angiography. AB - Purpose: To achieve reproducible imaging of the choriocapillaris and associated flow voids using swept-source OCT angiography (SS-OCTA). Methods: Subjects were enrolled and SS-OCTA was performed using the 3 * 3 mm scan pattern. Blood flow was identified using the complex optical microangiography (OMAG) algorithm. The choriocapillaris was defined as a slab from the outer boundary of Bruch's membrane (BM) to approximately 20 MUm below BM. Compensation for the shadowing effect caused by the RPE and BM complex on the choriocapillaris angiogram was achieved by using the structural information from the same slab. A thresholding method to calculate the percentage of flow voids from a region was developed based on a normal database. Results: Twenty normal subjects and 12 subjects with drusen were enrolled. SS-OCTA identified the choriocapillaris in normal subjects as a lobular plexus of capillaries in the central macula and the lobular arrangement became more evident toward the periphery. In all eyes, signal compensation resulted in fewer choriocapillaris flow voids with improved repeatability of measurements. The best repeatability for the measurement was achieved by using 1 standard deviation (SD) for the thresholding strategy. Conclusions: SS-OCTA can image the choriocapillaris in vivo, and the repeatability of flow void measurements is high in the presence of drusen. The ability to image the choriocapillaris and associated flow voids should prove useful in understanding disease onset, progression, and response to therapies. PMID- 29340649 TI - Optic Nerve Regeneration After Crush Remodels the Injury Site: Molecular Insights From Imaging Mass Spectrometry. AB - Purpose: Mammalian central nervous system axons fail to regenerate after injury. Contributing factors include limited intrinsic growth capacity and an inhibitory glial environment. Inflammation-induced optic nerve regeneration (IIR) is thought to boost retinal ganglion cell (RGC) intrinsic growth capacity through progrowth gene expression, but effects on the inhibitory glial environment of the optic nerve are unexplored. To investigate progrowth molecular changes associated with reactive gliosis during IIR, we developed an imaging mass spectrometry (IMS) based approach that identifies discriminant molecular signals in and around optic nerve crush (ONC) sites. Methods: ONC was performed in rats, and IIR was established by intravitreal injection of a yeast cell wall preparation. Optic nerves were collected at various postcrush intervals, and longitudinal sections were analyzed with matrix-assisted laser desorption/ionization (MALDI) IMS and data mining. Immunohistochemistry and confocal microscopy were used to compare discriminant molecular features with cellular features of reactive gliosis. Results: IIR increased the area of the crush site that was occupied by a dense cellular infiltrate and mass spectral features consistent with lysosome-specific lipids. IIR also increased immunohistochemical labeling for microglia and macrophages. IIR enhanced clearance of lipid sulfatide myelin-associated inhibitors of axon growth and accumulation of simple GM3 gangliosides in a spatial distribution consistent with degradation of plasma membrane from degenerated axons. Conclusions: IIR promotes a robust phagocytic response that improves clearance of myelin and axon debris. This growth-permissive molecular remodeling of the crush injury site extends our current understanding of IIR to include mechanisms extrinsic to the RGC. PMID- 29340650 TI - Colocalization of Galectin-3 With CD147 Is Associated With Increased Gelatinolytic Activity in Ulcerating Human Corneas. AB - Purpose: Galectin-3 is a carbohydrate-binding protein known to promote expression of matrix metalloproteinases, a hallmark of ulceration, through interaction with the extracellular matrix metalloproteinase inducer CD147. The aim of this study was to investigate the distribution of galectin-3 in corneas of patients with ulcerative keratitis and to determine its relationship to CD147 and the presence of gelatinolytic activity. Methods: This was an observational case series involving donor tissue from 13 patients with active corneal ulceration and 6 control corneas. Fixed-frozen sections of the corneas were processed to localize galectin-3 and CD147 by immunofluorescence microscopy. Gelatinolytic activity was detected by in situ zymography. Results: Tissue from patients with active corneal ulceration showed a greater galectin-3 immunoreactivity in basal epithelia and stroma compared with controls. Immunofluorescence grading scores revealed increased colocalization of galectin-3 and CD147 in corneal ulcers at the epithelial-stromal junction and within fibroblasts. Quantitative analysis using the Manders' colocalization coefficient demonstrated significant overlap in corneas from patients with ulcerative keratitis (M1 = 0.29; M2 = 0.22) as opposed to control corneas (M1 = 0.01, P < 0.01; M2 = 0.02, P < 0.05). In these experiments, there was a significant positive correlation between the degree of galectin-3 and CD147 colocalization and the presence of gelatinolytic activity. Conclusions: Our results indicate that concomitant stimulation and colocalization of galectin-3 with CD147 are associated with increased gelatinolytic activity in the actively ulcerating human cornea and suggest a mechanism by which galectin-3 may contribute to the degradation of extracellular matrix proteins during ulceration. PMID- 29340651 TI - Macular Perfusion Parameters in Different Angiocube Sizes: Does The Size Matter in Quantitative Optical Coherence Tomography Angiography? AB - Purpose: To investigate the macular quantitative parameters interchangeability of three different optical coherence tomography angiography (OCT-A) angiocubes (i.e., 3 * 3, 6 * 6, and 12 * 12 mm) on healthy subjects and patients affected by diabetic retinopathy (DR) and to assess the interrater reliability of such indices across the different scan protocols. Methods: Retrospective study involving 20 eyes of healthy subjects and 20 eyes with DR. All eyes underwent swept-source OCT-A with 3 * 3-, 6 * 6-, and 12 * 12-mm angiocubes centered on the fovea. Foveal avascular zone (FAZ) area and vessel density on 3 * 3-, 6 * 6-, and 12 * 12-mm macular scans were calculated by three independent operators at all retina, superficial, deep, and choriocapillary vascular layers. Interchangeability and interrater reliabilities were estimated using intraclass correlation coefficient (ICC). Results: Interscan reproducibility of FAZ area was very strong (ICC > 0.85) at every plexus. On the contrary, vessel density values significantly varied across different scan sizes (ICC < 0.51). Intrascan interrater reliability was high for all retina and superficial FAZ areas, while it was satisfactory at deep capillary plexus only for 3 * 3-mm scan. Conclusions: FAZ area at all plexuses is a robust parameter even if calculated on angiocubes with different size. However, interrater reliability is higher when measured in smaller scans. Conversely, vessel density results depend on the size of angiocube, although their interrater reliability is extremely high. Studies involving OCT-A should take into consideration that scan size may influence macular perfusion parameters and interrater reliability. PMID- 29340652 TI - Pain Sensitivity Associated With the Length of the Maximum Interblink Period. AB - Purpose: Pain sensitivity has been identified as a factor that affects how individuals answer dry eye questionnaires, but it is unknown how it affects ocular discomfort. This study used the time that individuals could refrain from blinking as an indicator of ocular discomfort and set out to determine whether it was related to pain sensitivity, while adjusting for ocular surface conditions. Methods: Subjects first completed the Pain Sensitivity Questionnaire to quantify pain sensitivity levels. Exposed interpalpebral area, tear meniscus height, tear film lipid layer thickness, ocular surface cooling, and noninvasive tear breakup were assessed. Subjects were then asked to refrain from blinking until the initial onset of discomfort, which was termed "the maximum interblink period" (MIBP), while ocular surface cooling rate was simultaneously measured. Subjects were seen for four visits over a course of 2 days. Results: Forty-two subjects (36 females, 6 males) completed the study, with a mean (SD) age of 23.2 (3.8) years. A longer MIBP was associated with decreased pain sensitivity (P = 0.04), lower ocular surface cooling rate (P < 0.001), and Asian ethnicity (P = 0.005). Based on the results from the mixed-effect model, it is estimated that individuals would be able to refrain from blinking for an additional 4 seconds if they had the lowest (0.6) compared to the highest (6.1) pain sensitivity in the study cohort. Conclusions: The Pain Sensitivity Questionnaire was associated with the MIBP length even after adjusting for ocular surface conditions, which suggests that pain sensitivity plays a role in influencing how ocular discomfort is perceived. PMID- 29340653 TI - ATTED-II in 2018: A Plant Coexpression Database Based on Investigation of the Statistical Property of the Mutual Rank Index. PMID- 29340654 TI - Antioxidant, angiotensin-converting enzyme inhibitory activity and other functional properties of egg white proteins and their derived peptides - A review. AB - Egg white contains many functionally important proteins: ovalbumin (54%), ovotransferrin (12%), ovomucoid (11%), ovoglobulin (G2 and G3, 8%), ovomucin (3.5%), and lysozyme (3.5%) are major proteins, while ovoinhibitors, ovomacroglobulin, ovoglycoprotein, ovoflavoprotein, thiamine-binding proteins, and avidin are minor proteins present in egg white. These proteins, as well as the peptides derived from the proteins, have been recognized for their functional importance as antioxidant, antimicrobial, metal-chelating, anti-viral, anti tumour, and angiotensin-converting enzyme (ACE)-inhibitory activities. Among the functional properties of the peptides, antioxidant and antimicrobial activities are important characteristics for food processing while other properties such as ACE-inhibitory activity of the peptides can have important health-related functionalities. Bioactive peptides can be produced from egg white proteins by enzyme hydrolysis, chemical treatments, or thermal treatments at different pH conditions. The effective functional peptides produced from egg white proteins are usually smaller than 2 kDa in molecular size. However, these peptides are known for their beneficial activities in vitro only, and little work has been done to prove their beneficial effects in vivo. Therefore, further studies are needed to see if the bioactive peptides derived from egg white proteins are helpful for humans in the future. PMID- 29340655 TI - Effect of dietary synbiotic supplement on behavioral patterns and growth performance of broiler chickens reared under heat stress. AB - This study examined the effects of a dietary synbiotic supplement on the behavioral patterns and growth performance of broiler chickens exposed to heat stress (HS). Three hundred sixty 1-day-old male Ross 708 broiler chicks were distributed among 24 floor pens (15 chicks per pen); each pen was randomly assigned to one of 3 dietary treatments containing a synbiotic at 0 (control), 0.5 (0.5X) and 1.0 (1.0X) g/kg. From d 15 to 42, birds were exposed to HS at 32 degrees C daily from 08:00 to 17:00. Five broiler chickens were randomly marked in each pen for behavioral observation. Instantaneous scan sampling was used to record the birds' behavioral patterns. Performance parameters were measured on d 7, 14, 28 and 42. The synbiotic fed birds exhibited more standing, sitting, walking, feeding, preening and less wing spreading and panting behaviors (P < 0.05) compared to birds fed the control diet. The synbiotic group also had higher BW, BW gain and feed intake on d 7, 14 and 42 (P < 0.05), and higher BW, feed intake and feed conversion ratio at d 28 (P < 0.01). There were no treatment effects on drinking behavior, BW gain on d 28 and feed conversion ratio on d 42 (P > 0.05). There were few dose-related differences of the synbiotic on production performance; namely, the 1.0X concentration resulted in the highest BW and feed intake on d 14 and 42 (P < 0.05), while BW gain was higher compared to the control group only on d 42 (P < 0.05). The results suggest that the synbiotic supplement may prove to be an important management tool for the broiler industry to diminish the negative effects of HS, potentially safeguarding the welfare and production of broiler chickens, particularly in areas that experience hot climates. PMID- 29340656 TI - Antagonistic effect of Saccharomyces cerevisiae KTP and Issatchenkia occidentalis ApC on hyphal development and adhesion of Candida albicans. AB - The morphological transition from yeast to a hyphal form, as well as the adhesion capability to the gastrointestinal tract, are implicated virulent determinant in Candida albicans and could be potential targets for prevention of the opportunistic pathogen. Based on this rationale, two yeast strains Saccharomyces cerevisiae KTP and Issatchenkia occidentalis ApC along with reference strain Saccharomyces boulardii NCDC 363 were screened for the probiotic potential. Characters like pH, temperature, bile, simulated gastrointestinal juice tolerance tests, and Caco-2 cell line adhesion assay were determined in the present study. Further, the evaluation of its impact on C. albicans morphological transition and adhesion was assessed using microtitre germ tube test. In terms of probiotic characteristics, both the strains were tolerant to pH 2.5 and the presence of bile (0.3 to 0.6%) with an optimum growth temperature of 37 degrees C. The strain KTP was also resistant to simulated gastric and intestinal juices as compared to control (13% and 41%, respectively) and NCDC 363 (55% and 35%, respectively). In contrast, both the yeasts had reduced adhesiveness to Caco-2 monolayer. Candida virulence in in vitro systems indicated that treatment of live probiotic yeast cells (108 ml) effectively reduced the filamentation and adhesion of C. albicans. The S. cerevisiae KTP had a profound effect on the hyphal development and adhesion when compared to the ApC and NCDC 363. The strain significantly reduced (P < .05) the hyphal growth in co-cultivated (93% and 94%, respectively) and pre existing hyphae (54% and 68%) of strains C. albicans 183 and 1151. Isolates KTP and ApC also reduced the adhesion (~ 22% and 41%, respectively) and transition of blastoconidia at two hours of incubation in abiotic surface. This study provides knowledge on the effect of potential probiotic yeasts such as Saccharomyces and non- Saccharomyces strains against virulence characteristic of Candida albicans. PMID- 29340657 TI - Ixodes scapularis (Acari: Ixodidae) Reservoir Host Diversity and Abundance Impacts on Dilution of Borrelia burgdorferi (Spirochaetales: Spirochaetaceae) in Residential and Woodland Habitats in Connecticut, United States. AB - The dilution effect in the zoonotic disease transmission cycle theorizes that an increased diversity of host species will alter transmission dynamics, result in a decrease in pathogen prevalence, and potentially lower human disease incidence. The interrelationship of Borrelia burgdorferi (Johnson, Schmid, Hyde, Steigerwalt, and Brenner) (Spirochaetales: Spirochaetaceae), the etiological agent of Lyme disease (LD), and its primary vector, blacklegged ticks (Ixodes scapularis Say) (Acari: Ixodidae), is a commonly used example of the dilution effect, suggesting that an increased diversity of host species will be found in large, undisturbed forested tracts and lower diversity in fragmented forests. Given that Connecticut woodlands are mature with heavy upper canopies and generally poor habitat quality, we hypothesized there would be higher diversity of host species resulting in lower prevalence of B. burgdorferi in white-footed mice (Peromyscus leucopus Rafinesque) (Rodentia: Cricetidae) in forested residential areas. Using camera and live small mammal trapping techniques, we determined there was a greater richness of reservoir host species, significantly higher encounters with hosts, and significantly lower B. burgdorferi host infection in residential areas as compared to large, intact forested stands. Furthermore, we determined that the driving factor of pathogen dilution was not host species diversity, but rather overall encounter abundance with alternative hosts, regardless of habitat type. Our study challenges major concepts of the dilution effect within the Connecticut landscape and calls for new managerial actions to address the current state of our woodlands and abundance of host species in the interest of both forest and public health. PMID- 29340658 TI - Cuticle and pore plug properties in the table egg. AB - Food safety of table eggs is vital since many pathogens can contaminate the unfertilized egg, leading to increased risk of foodborne illness for consumers. The eggshell cuticle is the first line of defense to restrict the entry of egg associated pathogens, such as Salmonella Enteritidis. The thickness and completeness of coverage of the cuticle layer are heritable traits that are strongly associated with egg resistance to bacterial penetration. The present study characterizes the chemical composition of the eggshell cuticle and structure of pore plugs from table eggs. Eggs collected from both brown and white egg laying Lohmann flocks (early, mid, and late lay) were either unwashed or washed. Pore plugs were characterized using scanning electron microscopy (SEM), and elemental composition was determined using energy-dispersive x-ray spectroscopy (EDS). SEM observations confirmed that the plug formed by the cuticle layer within the eggshell pore remains firmly lodged throughout the commercial washing process. The eggshell thickness and cuticle pore length visualized in brown eggs was significantly higher than in white eggs in hens of all ages. EDS analysis revealed that the pore inner surface was enriched in phosphorus and chemically different from the surrounding bulk eggshell mineral. Detailed assessment of the cuticle chemical composition was performed by Fourier transform infrared spectroscopy (FTIR). Washing of eggs removed cuticle from the eggshell surface. There was a trend of lower cuticle coverage with increasing hen age for white eggs. A significant reduction in the amount of proteins and phosphates and polysaccharides was observed in the cuticle of brown unwashed eggs with hen age. In white unwashed eggs, amides and lipids decreased with hen age; by contrast, the amount of sulfate was highest at mid-lay. The results from our research will assist selective breeding programs that target cuticle integrity and pore plug stability to enhance egg resistance to pathogen penetration and improve food safety. PMID- 29340659 TI - Comparing the Outcomes of Sleeve Gastrectomy and Roux-en-Y Gastric Bypass for Severe Obesity. PMID- 29340660 TI - Reimagining Obesity in 2018: A JAMA Theme Issue on Obesity. PMID- 29340661 TI - Second Cancer Biosimilar Approved. PMID- 29340662 TI - Regulatory Pathway for 3D Printing. PMID- 29340663 TI - Monthly Buprenorphine Injection Approved for Opioid Use Disorder. PMID- 29340664 TI - Long-term Outcomes Following Bariatric Surgery. PMID- 29340665 TI - Medical Care Use and Expenditures Associated With Adult Obesity in the United States. PMID- 29340667 TI - Appropriations for City Health Departments. PMID- 29340668 TI - Axillary vs Sentinel Lymph Node Dissection in Women With Invasive Breast Cancer. PMID- 29340669 TI - Risks of Statins for Lower-Risk Individuals. PMID- 29340670 TI - Trends in Carotid Revascularization Procedures. PMID- 29340671 TI - Trends in Carotid Revascularization Procedures. PMID- 29340672 TI - Axillary vs Sentinel Lymph Node Dissection in Women With Invasive Breast Cancer Reply. PMID- 29340673 TI - Risks of Statins for Lower-Risk Individuals-Reply. PMID- 29340674 TI - Trends in Carotid Revascularization Procedures-Reply. PMID- 29340675 TI - Interest in the Ketogenic Diet Grows for Weight Loss and Type 2 Diabetes. PMID- 29340676 TI - Effect of Laparoscopic Sleeve Gastrectomy vs Laparoscopic Roux-en-Y Gastric Bypass on Weight Loss at 5 Years Among Patients With Morbid Obesity: The SLEEVEPASS Randomized Clinical Trial. AB - Importance: Laparoscopic sleeve gastrectomy for treatment of morbid obesity has increased substantially despite the lack of long-term results compared with laparoscopic Roux-en-Y gastric bypass. Objective: To determine whether laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass are equivalent for weight loss at 5 years in patients with morbid obesity. Design, Setting, and Participants: The Sleeve vs Bypass (SLEEVEPASS) multicenter, multisurgeon, open-label, randomized clinical equivalence trial was conducted from March 2008 until June 2010 in Finland. The trial enrolled 240 morbidly obese patients aged 18 to 60 years, who were randomly assigned to sleeve gastrectomy or gastric bypass with a 5-year follow-up period (last follow-up, October 14, 2015). Interventions: Laparoscopic sleeve gastrectomy (n = 121) or laparoscopic Roux-en Y gastric bypass (n = 119). Main Outcomes and Measures: The primary end point was weight loss evaluated by percentage excess weight loss. Prespecified equivalence margins for the clinical significance of weight loss differences between gastric bypass and sleeve gastrectomy were -9% to +9% excess weight loss. Secondary end points included resolution of comorbidities, improvement of quality of life (QOL), all adverse events (overall morbidity), and mortality. Results: Among 240 patients randomized (mean age, 48 [SD, 9] years; mean baseline body mass index, 45.9, [SD, 6.0]; 69.6% women), 80.4% completed the 5-year follow-up. At baseline, 42.1% had type 2 diabetes, 34.6% dyslipidemia, and 70.8% hypertension. The estimated mean percentage excess weight loss at 5 years was 49% (95% CI, 45%-52%) after sleeve gastrectomy and 57% (95% CI, 53%-61%) after gastric bypass (difference, 8.2 percentage units [95% CI, 3.2%-13.2%], higher in the gastric bypass group) and did not meet criteria for equivalence. Complete or partial remission of type 2 diabetes was seen in 37% (n = 15/41) after sleeve gastrectomy and in 45% (n = 18/40) after gastric bypass (P > .99). Medication for dyslipidemia was discontinued in 47% (n = 14/30) after sleeve gastrectomy and 60% (n = 24/40) after gastric bypass (P = .15) and for hypertension in 29% (n = 20/68) and 51% (n = 37/73) (P = .02), respectively. There was no statistically significant difference in QOL between groups (P = .85) and no treatment-related mortality. At 5 years the overall morbidity rate was 19% (n = 23) for sleeve gastrectomy and 26% (n = 31) for gastric bypass (P = .19). Conclusions and Relevance: Among patients with morbid obesity, use of laparoscopic sleeve gastrectomy compared with use of laparoscopic Roux-en-Y gastric bypass did not meet criteria for equivalence in terms of percentage excess weight loss at 5 years. Although gastric bypass compared with sleeve gastrectomy was associated with greater percentage excess weight loss at 5 years, the difference was not statistically significant, based on the prespecified equivalence margins. Trial Registration: clinicaltrials.gov Identifier: NCT00793143. PMID- 29340677 TI - Association of Bariatric Surgery Using Laparoscopic Banding, Roux-en-Y Gastric Bypass, or Laparoscopic Sleeve Gastrectomy vs Usual Care Obesity Management With All-Cause Mortality. AB - Importance: Bariatric surgery is an effective and safe approach for weight loss and short-term improvement in metabolic disorders such as diabetes. However, studies have been limited in most settings by lack of a nonsurgical group, losses to follow-up, missing data, and small sample sizes in clinical trials and observational studies. Objective: To assess the association of 3 common types of bariatric surgery compared with nonsurgical treatment with mortality and other clinical outcomes among obese patients. Design, Setting, and Participants: Retrospective cohort study in a large Israeli integrated health fund covering 54% of Israeli citizens with less than 1% turnover of members annually. Obese adult patients who underwent bariatric surgery between January 1, 2005, and December 31, 2014, were selected and compared with obese nonsurgical patients matched on age, sex, body mass index (BMI), and diabetes, with a final follow-up date of December 31, 2015. A total of 33 540 patients were included in this study. Exposures: Bariatric surgery (laparoscopic banding, Roux-en-Y gastric bypass, or laparoscopic sleeve gastrectomy) or usual care obesity management only (provided by a primary care physician and which may include dietary counseling and behavior modification). Main Outcomes and Measures: The primary outcome, all-cause mortality, matched and adjusted for BMI prior to surgery, age, sex, socioeconomic status, diabetes, hyperlipidemia, hypertension, cardiovascular disease, and smoking. Results: The study population included 8385 patients who underwent bariatric surgery (median age, 46 [IQR, 37-54] years; 5490 [65.5%] women; baseline median BMI, 40.6 [IQR, 38.5-43.7]; laparoscopic banding [n = 3635], gastric bypass [n = 1388], laparoscopic sleeve gastrectomy [n = 3362], and 25 155 nonsurgical matched patients (median age, 46 [IQR, 37-54] years; 16 470 [65.5%] women; baseline median BMI, 40.5 [IQR, 37.0-43.5]). The availability of follow-up data was 100% for all-cause mortality. There were 105 deaths (1.3%) among surgical patients during a median follow-up of 4.3 (IQR, 2.8-6.6) years (including 61 [1.7%] who underwent laparoscopic banding, 18 [1.3%] gastric bypass, and 26 [0.8%] sleeve gastrectomy), and 583 deaths (2.3%) among nonsurgical patients during a median follow-up of 4.0 (IQR, 2.6-6.2) years. The absolute difference was 2.51 (95% CI, 1.86-3.15) fewer deaths/1000 person-years in the surgical vs nonsurgical group. Adjusted hazard ratios (HRs) for mortality among nonsurgical vs surgical patients were 2.02 (95% CI, 1.63-2.52) for the entire study population; by surgical type, HRs were 2.01 (95% CI, 1.50-2.69) for laparoscopic banding, 2.65 (95% CI, 1.55-4.52) for gastric bypass, and 1.60 (95% CI, 1.02-2.51) for laparoscopic sleeve gastrectomy. Conclusions and Relevance: Among obese patients in a large integrated health fund in Israel, bariatric surgery using laparoscopic banding, gastric bypass, or laparoscopic sleeve gastrectomy, compared with usual care nonsurgical obesity management, was associated with lower all-cause mortality over a median follow-up of approximately 4.5 years. The evidence of this association adds to the limited literature describing beneficial outcomes of these 3 types of bariatric surgery compared with usual care obesity management alone. PMID- 29340678 TI - Lifestyle Intervention and Medical Management With vs Without Roux-en-Y Gastric Bypass and Control of Hemoglobin A1c, LDL Cholesterol, and Systolic Blood Pressure at 5 Years in the Diabetes Surgery Study. AB - Importance: The Roux-en-Y gastric bypass is effective in achieving established diabetes treatment targets, but durability is unknown. Objective: To compare durability of Roux-en-Y gastric bypass added to intensive lifestyle and medical management in achieving diabetes control targets. Design, Setting, and Participants: Observational follow-up of a randomized clinical trial at 4 sites in the United States and Taiwan, involving 120 participants who had a hemoglobin A1c (HbA1c) level of 8.0% or higher and a body mass index between 30.0 and 39.9 (enrolled between April 2008 and December 2011) were followed up for 5 years, ending in November 2016. Interventions: Lifestyle-intensive medical management intervention based on the Diabetes Prevention Program and LookAHEAD trials for 2 years, with and without (60 participants each) Roux-en-Y gastric bypass surgery followed by observation to year 5. Main Outcomes and Measures: The American Diabetes Association composite triple end point of hemoglobin A1c less than 7.0%, low-density lipoprotein cholesterol less than 100 mg/dL, and systolic blood pressure less than 130 mm Hg at 5 years. Results: Of 120 participants who were initially randomized (mean age, 49 years [SD, 8 years], 72 women [60%]), 98 (82%) completed 5 years of follow-up. Baseline characteristics were similar between groups: mean (SD) body mass index 34.4 (3.2) for the lifestyle-medical management group and 34.9 (3.0) for the gastric bypass group and had hemoglobin A1c levels of 9.6% (1.2) and 9.6% (1.0), respectively. At 5 years, 13 participants (23%) in the gastric bypass group and 2 (4%) in the lifestyle-intensive medical management group had achieved the composite triple end point (difference, 19%; 95% CI, 4% 34%; P = .01). In the fifth year, 31 patients (55%) in the gastric bypass group vs 8 (14%) in the lifestyle-medical management group achieved an HbA1c level of less than 7.0% (difference, 41%; 95% CI, 19%-63%; P = .002). Gastric bypass had more serious adverse events than did the lifestyle-medical management intervention, 66 events vs 38 events, most frequently gastrointestinal events and surgical complications such as strictures, small bowel obstructions, and leaks. Gastric bypass had more parathyroid hormone elevation but no difference in B12 deficiency. Conclusions and Relevance: In extended follow-up of obese adults with type 2 diabetes randomized to adding gastric bypass compared with lifestyle and intensive medical management alone, there remained a significantly better composite triple end point in the surgical group at 5 years. However, because the effect size diminished over 5 years, further follow-up is needed to understand the durability of the improvement. Trial Registration: clinicaltrials.gov Identifier: NCT00641251. PMID- 29340679 TI - Effect of Laparoscopic Sleeve Gastrectomy vs Laparoscopic Roux-en-Y Gastric Bypass on Weight Loss in Patients With Morbid Obesity: The SM-BOSS Randomized Clinical Trial. AB - Importance: Sleeve gastrectomy is increasingly used in the treatment of morbid obesity, but its long-term outcome vs the standard Roux-en-Y gastric bypass procedure is unknown. Objective: To determine whether there are differences between sleeve gastrectomy and Roux-en-Y gastric bypass in terms of weight loss, changes in comorbidities, increase in quality of life, and adverse events. Design, Setting, and Participants: The Swiss Multicenter Bypass or Sleeve Study (SM-BOSS), a 2-group randomized trial, was conducted from January 2007 until November 2011 (last follow-up in March 2017). Of 3971 morbidly obese patients evaluated for bariatric surgery at 4 Swiss bariatric centers, 217 patients were enrolled and randomly assigned to sleeve gastrectomy or Roux-en-Y gastric bypass with a 5-year follow-up period. Interventions: Patients were randomly assigned to undergo laparoscopic sleeve gastrectomy (n = 107) or laparoscopic Roux-en-Y gastric bypass (n = 110). Main Outcomes and Measures: The primary end point was weight loss, expressed as percentage excess body mass index (BMI) loss. Exploratory end points were changes in comorbidities and adverse events. Results: Among the 217 patients (mean age, 45.5 years; 72% women; mean BMI, 43.9) 205 (94.5%) completed the trial. Excess BMI loss was not significantly different at 5 years: for sleeve gastrectomy, 61.1%, vs Roux-en-Y gastric bypass, 68.3% (absolute difference, -7.18%; 95% CI, -14.30% to -0.06%; P = .22 after adjustment for multiple comparisons). Gastric reflux remission was observed more frequently after Roux-en-Y gastric bypass (60.4%) than after sleeve gastrectomy (25.0%). Gastric reflux worsened (more symptoms or increase in therapy) more often after sleeve gastrectomy (31.8%) than after Roux-en-Y gastric bypass (6.3%). The number of patients with reoperations or interventions was 16/101 (15.8%) after sleeve gastrectomy and 23/104 (22.1%) after Roux-en-Y gastric bypass. Conclusions and Relevance: Among patients with morbid obesity, there was no significant difference in excess BMI loss between laparoscopic sleeve gastrectomy and laparoscopic Roux-en-Y gastric bypass at 5 years of follow-up after surgery. Trial Registration: clinicaltrials.gov Identifier: NCT00356213. PMID- 29340681 TI - Sleeve Gastrectomy for Weight Loss. PMID- 29340680 TI - Association of Bariatric Surgery vs Medical Obesity Treatment With Long-term Medical Complications and Obesity-Related Comorbidities. AB - Importance: The association of bariatric surgery and specialized medical obesity treatment with beneficial and detrimental outcomes remains uncertain. Objective: To compare changes in obesity-related comorbidities in patients with severe obesity (body mass index >=40 or >=35 and at least 1 comorbidity) undergoing bariatric surgery or specialized medical treatment. Design, Setting, and Participants: Cohort study with baseline data of exposures from November 2005 through July 2010 and follow-up data from 2006 until death or through December 2015 at a tertiary care outpatient center, Vestfold Hospital Trust, Norway. Consecutive treatment-seeking adult patients (n = 2109) with severe obesity assessed (221 patients excluded and 1888 patients included). Exposures: Bariatric surgery (n = 932, 92% gastric bypass) or specialized medical treatment (n = 956) including individual or group-based lifestyle intervention programs. Main Outcomes and Measures: Primary outcomes included remission and new onset of hypertension based on drugs dispensed according to the Norwegian Prescription Database. Prespecified secondary outcomes included changes in comorbidities. Adverse events included complications retrieved from the Norwegian Patient Registry and a local laboratory database. Results: Among 1888 patients included in the study, the mean (SD) age was 43.5 (12.3) years (1249 women [66%]; mean [SD] baseline BMI, 44.2 [6.1]; 100% completed follow-up at a median of 6.5 years [range, 0.2-10.1]). Surgically treated patients had a greater likelihood of remission and lesser likelihood for new onset of hypertension (remission: absolute risk [AR], 31.9% vs 12.4%); risk difference [RD], 19.5% [95% CI, 15.8% 23.2%], relative risk [RR], 2.1 [95% CI, 2.0-2.2]; new onset: AR, 3.5% vs 12.2%, RD, 8.7% [95% CI, 6.7%-10.7%], RR, 0.4 [95% CI, 0.3-0.5]; greater likelihood of diabetes remission: AR, 57.5% vs 14.8%; RD, 42.7% [95% CI, 35.8%-49.7%], RR, 3.9 [95% CI, 2.8-5.4]; greater risk of new-onset depression: AR, 8.9% vs 6.5%; RD, 2.4% [95% CI, 1.3%-3.5%], RR, 1.5 [95% CI, 1.4-1.7]; and treatment with opioids: AR, 19.4% vs 15.8%, RD, 3.6% [95% CI, 2.3%-4.9%], RR, 1.3 [95% CI, 1.2-1.4]). Surgical patients had a greater risk for undergoing at least 1 additional gastrointestinal surgical procedure (AR, 31.3% vs 15.5%; RD, 15.8% [95% CI, 13.1% 18.5%]; RR, 2.0 [95% CI, 1.7-2.4]). The proportion of patients with low ferritin levels was significantly greater in the surgical group (26% vs 12%, P < .001). Conclusions and Relevance: Among patients with severe obesity followed up for a median of 6.5 years, bariatric surgery compared with medical treatment was associated with a clinically important increased risk for complications, as well as lower risks of obesity-related comorbidities. The risk for complications should be considered in the decision-making process. PMID- 29340684 TI - Evolving Societal Norms of Obesity: What Is the Appropriate Response? PMID- 29340685 TI - Can the Government Require Health Warnings on Sugar-Sweetened Beverage Advertisements? PMID- 29340686 TI - Taxes and Sugar-Sweetened Beverages. PMID- 29340687 TI - Toward Precision Approaches for the Prevention and Treatment of Obesity. PMID- 29340688 TI - Counting Calories as an Approach to Achieve Weight Control. PMID- 29340689 TI - Fitness or Fatness: Which Is More Important? PMID- 29340690 TI - Possible Biomarkers of Deadly Ebola. PMID- 29340691 TI - Dangers of Substandard or Falsified Medicines. PMID- 29340692 TI - Combination Strategy Associated With Reduced HIV Incidence in Uganda. PMID- 29340693 TI - Can granulomatosis with polyangiitis be diagnosed earlier in primary care? A case control study. AB - Background: People with granulomatosis with polyangiitis (GPA) commonly described long delays before diagnosis. Aim: To study the natural history of GPA prior to diagnosis using primary care data, and determine whether clinical features could be identified to help earlier diagnosis. Design: Case-control study using the Clinical Practice Research Datalink. Methods: We compared primary care activity and clinical features between cases and 10 matched controls. Results: We identified 757 cases and matched 7546 controls. Compared to controls, cases had more GP consultations and overall healthcare activity in the 5 years prior to their diagnosis, with a marked increase in the year before diagnosis, and particularly in the last 3 months. However, consultations were mostly for symptoms that were not specifically related to GPA. In the year prior to diagnosis, the most frequent and strongly predictive clinical features of GPA were Ear Nose and Throat (ENT) symptoms [34.5% of cases, odds ratio (OR) 10.5, 95% confidence intervals (CI) 8.6-12.7], and general (constitutional) symptoms (21.5% of cases, OR 9.0, 95% CI 7.1-11.3). In the year before diagnosis a larger number of cases attended secondary care (382, 50.5%) than had records of clinical features of GPA. Conclusions: After discussing our findings, we conclude that it would be difficult to identify cases of GPA earlier in primary care. Our results support a need for heightened awareness of this condition among secondary care clinicians, especially those assessing emergency admissions, and in the clinics which were most frequently attended by cases 3-12 months prior to diagnosis. PMID- 29340694 TI - Death row prisoners-regret for the past and fear for the future? PMID- 29340696 TI - From Southeast Asia to the Sewers: Study Determines New Geographic Origins of Brown Rats. PMID- 29340695 TI - Development and psychometric properties of the Hookah Smoking Initiation for Women Questionnaire (HIWQ). AB - The aims of this study were to design the Hookah Smoking Initiation for Women Questionnaire (HIWQ) and determine its psychometric properties. This was a sequential exploratory mixed-methods design consisting of qualitative and quantitative phases. This study was conducted from August 2012 to July 2013 in Tehran. In the qualitative phase, semi-structured interviews were held with 36 Iranian women for developing a preliminary item pool. Consequently, during the quantitative phase, the psychometric properties of the questionnaire were determined with the collaboration of 323 women living in various geographical locations in Tehran, Iran. Content validity of the questionnaire was examined by a panel of experts. The questionnaire's construct validity was assessed using exploratory factor analysis and confirmatory factor analyses. The Cronbach's alpha coefficient was calculated to check the questionnaire's internal consistency reliability. Moreover, its stability was tested using the test-retest method. Exploratory factor analysis indicated that the HIQW could best be explained by a six-factor solution: 'drawing the attention of other people', the need to having fun and being relaxed, 'hookah smoking in the family', 'availability of hookah', 'curiosity' and 'having a positive attitude toward hookah'. It also was found that the construct and content validity, and the reliability of the questionnaire were satisfactory (alpha = 0.83, ICC = 0.94). The HIQW was valid and reliable. Therefore, healthcare professionals can use it for evaluating the hookah smoking initiation in women. Future studies are required to refine this questionnaire and assess its applicability in different cultures and contexts. PMID- 29340697 TI - Genetic and clinical evidence of mitochondrial dysfunction in autism spectrum disorder and intellectual disability. AB - Clinical conditions commonly associated with mitochondrial disorders (CAMDs) are often present in autism spectrum disorders (ASD) and intellectual disability (ID). Therefore, the mitochondrial dysfunction hypothesis has been proposed as a transversal mechanism that may function in both disorders. Here, we investigated the presence of conditions associated with mitochondrial disorders and mitochondrial DNA (mtDNA) alterations in 122 subjects who presented ASD with ID (ASD group), 115 subjects who presented ID but not ASD (ID group) and 112 healthy controls (HC group). We assessed in the three study groups the presence of the clinical conditions through a questionnaire and the mtDNA content of two mitochondrial genes, MT-ND1 and MT-ND4, by qPCR. The mtDNA sequences of 98 ASD and 95 ID subjects were obtained by mtDNA-targeted next generation sequencing and analysed through the MToolBox pipeline to identify mtDNA mutations. Subjects with ASD and ID showed higher frequencies of constipation, edema, seizures, vision alterations, strabismus and sphincter incontinence than HCs subjects. ASD and ID subjects showed significantly lower mtDNA content than HCs in both MT-ND1 and MT ND4 genes. In addition, we identified 49 putative pathogenic variants with a heteroplasmy level higher than 60%: 8 missense, 29 rRNA and 12 tRNA variants. A total of 28.6% of ASD and 30.5% of ID subjects carried at least one putative pathogenic mtDNA mutation. The high frequency of CAMDs, the low mtDNA content and the presence of putative pathogenic mtDNA mutations observed in both ASD and ID subjects are evidence of mitochondrial dysfunction in ASD and ID. PMID- 29340698 TI - Simultaneous detection of chicken cytokines in plasma samples using the Bio-Plex assay. AB - A chicken multiplex cytokine assay (Bio-Plex) to detect four different cytokines (IL-2, IL-12, IL-10, and interferon gamma) simultaneously in plasma samples was designed. Most standard curves range between 1 to 5 pg/mL and 5,000 pg/mL, except for IFNgamma with the range of 50 to 25,000 pg/mL. Such a chicken multiplex assay proved to be fast and reliable, and comparable in sensitivity, accuracy, and reproducibility to conventional enzyme-linked immunosorbent assays. Comparison of the multiplex assay with the ELISA technique using the same clones of detection and capture antibodies resulted in correlation coefficients for all cytokines ranging from 0.95 to 0.99. Lower limit of detection and limit of quantification values were obtained for all tested cytokines by the Bio-Plex assay compared with ELISA. To reduce the risk of cross-reaction with other proteins, the Bio-Plex system was used, combining the principle of sandwich immunoassay with the Luminex bead-based technology. The cytokine standard recoveries for each cytokine varied between 86 and 118% in dynamic concentration ranges. A chicken multiplex cytokine assay (Bio-Plex) provided a more complete picture of differences between the Th1/Th2 cytokine profiles of the immunized via a new system of antigen delivery into chicken antigen-presenting cells and control groups. This multiplexed fluorescent-bead-based detection assay can be used as a quantitative or comparative tool for the study of the chicken ex vivo cellular immune response. PMID- 29340700 TI - Finding Their Inner Bird: Using Modern Genomics to Turn Alligator Scales into Birdlike Feathers. PMID- 29340699 TI - Long-term expression of glomerular genes in diabetic nephropathy. AB - Background: Although diabetic nephropathy (DN) is the most common cause for end stage renal disease in western societies, its pathogenesis still remains largely unclear. A different gene pattern of diabetic and healthy kidney cells is one of the probable explanations. Numerous signalling pathways have emerged as important pathophysiological mechanisms for diabetes-induced renal injury. Methods: Glomerular cells, as podocytes or mesangial cells, are predominantly involved in the development of diabetic renal lesions. While many gene assays concerning DN are performed with whole kidney or renal cortex tissue, we isolated glomeruli from black and tan, brachyuric (BTBR) obese/obese (ob/ob) and wildtype mice at four different timepoints (4, 8, 16 and 24 weeks) and performed an mRNA microarray to identify differentially expressed genes (DEGs). In contrast to many other diabetic mouse models, these homozygous ob/ob leptin-deficient mice develop not only a severe type 2 diabetes, but also diabetic kidney injury with all the clinical and especially histologic features defining human DN. By functional enrichment analysis we were able to investigate biological processes and pathways enriched by the DEGs at different disease stages. Altered expression of nine randomly selected genes was confirmed by quantitative polymerase chain reaction from glomerular RNA. Results: Ob/ob type 2 diabetic mice showed up- and downregulation of genes primarily involved in metabolic processes and pathways, including glucose, lipid, fatty acid, retinol and amino acid metabolism. Members of the CYP4A and ApoB family were found among the top abundant genes. But more interestingly, altered gene loci showed enrichment for processes and pathways linked to angioneogenesis, complement cascades, semaphorin pathways, oxidation and reduction processes and renin secretion. Conclusion: The gene profile of BTBR ob/ob type 2 diabetic mice we conducted in this study can help to identify new key players in molecular pathogenesis of diabetic kidney injury. PMID- 29340701 TI - Impact of graft loss among kidney diseases with a high risk of post-transplant recurrence in the paediatric population. PMID- 29340702 TI - Risk and Protective Factors for Depressive Symptoms Among African American Men: An Application of the Stress Process Model. AB - Objectives: This study employs the stress process model (SPM) to identify risk/protective factors for mental health among adult African American men. Method: Using a community-based sample of Miami, FL residents linked to neighborhood Census data, this study identifies risk/protective factors for depressive symptomatology using a sample of 248 adult African American men. Results: The stress process variables independently associated with depressive symptoms were family support, mastery, self-esteem, chronic stressors, and daily discrimination. While mastery and self-esteem mediated the relationship between neighborhood income and depressive symptoms, perceived family support served as a buffer for stress exposure. Collectively, the SPM explains nearly half of the variability in depressive symptoms among African American men. Discussion: The SPM is a useful conceptual framework for identifying psychosocial risk/protective factors and directing health initiatives and policies aimed at improving the psychological health of African American men. PMID- 29340703 TI - Psychosocial Influences of African Americans Men's Health. PMID- 29340704 TI - Delayed conception in women with low-urinary iodine concentrations: a population based prospective cohort study. AB - STUDY QUESTION: Is iodine deficiency associated with decreased fecundability? SUMMARY ANSWER: Moderate to severe iodine deficiency is associated with a 46% decrease in fecundability. WHAT IS KNOWN ALREADY: Iodine deficiency is common in women of childbearing age but its effect on fecundability has not been investigated. STUDY DESIGN, SIZE, DURATION: The LIFE Study, a population-based prospective cohort study, enrolled 501 women who had discontinued contraception within 2 months to become pregnant between 2005 and 2009. PARTICIPANTS/MATERIALS, SETTING, METHODS: Women reported on risk factors for infertility by interview then kept daily journals of relevant information. Women used fertility monitors to time intercourse relative to ovulation then used home digital pregnancy tests to identify pregnancies on the day of expected menstruation. Urine samples for iodine analysis were collected on enrollment. MAIN RESULTS AND THE ROLE OF CHANCE: Samples were in the deficiency range in 44.3% of participants. The group whose iodine-creatinine ratios were below 50 MUg/g (moderate to severe deficiency) had a 46% reduction in fecundity (P = 0.028) compared with the group whose iodine-creatinine ratios were in the adequate range: adjusted fecundability odds ratio of becoming pregnant per cycle, 0.54 (95% confidence interval 0.31 0.94). LIMITATIONS, REASONS FOR CAUTION: Iodine concentrations vary within individuals over time, so the data must be interpreted by group as we have done; residual confounding is possible. WIDER IMPLICATIONS OF THE FINDINGS: Significant delays in becoming pregnant occur at iodine concentrations that are common in women in the USA and parts of Europe. Replicating these findings will be important to determine whether improving iodine status could be beneficial in improving fecundability. STUDY FUNDING/COMPETING INTEREST(S): This study was funded by the Intramural Research Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, USA. Contracts N01-HD-3-3355; N01-HD-3-3356; N01-HD-3-3358 and HHSN275201100001l/HHSN27500007. None of the authors has any conflict of interest to declare. PMID- 29340705 TI - Author Correction: Ouabain attenuates ovalbumin-induced airway inflammation. AB - In the original publication, author missed to include the financial support from CAPES/PROCAD-2013. The complete funding text should read as follows. PMID- 29340706 TI - Prognostic implications of the co-detection of the urokinase plasminogen activator system and osteopontin in patients with non-small-cell lung cancer undergoing radiotherapy and correlation with gross tumor volume. AB - BACKGROUND: The urokinase plasminogen activator system (uPA, uPAR, PAI-1) is upregulated in cancer and high plasma levels are associated with poor prognosis. Their interaction with hypoxia-related osteopontin (OPN) which is also overexpressed in malignant tumors suggests potential clinical relevance. However, the prognostic role of the uPA system in the radiotherapy (RT) of non-small-cell lung cancer (NSCLC), particularly in combination with OPN, has not been investigated so far. METHODS: uPA, uPAR, PAI-1 and OPN plasma levels of 81 patients with locally advanced or metastasized NSCLC were prospectively analyzed by ELISA before RT and were correlated to clinical patient/tumor data and prognosis after RT. RESULTS: uPAR plasma levels were higher in M1; uPA and PAI-1 levels were higher in M0 NSCLC patients. uPAR correlated with uPA (p < 0.001) which also correlated with PAI-1 (p < 0.001). The prognostic impact of OPN plasma levels in the RT of NSCLC was previously reported by our group. PAI-I plasma levels significantly impacted overall (OS) and progression-free survival (PFS). Low PAI-1 levels were associated with a significantly reduced OS and PFS with a nearly 2-fold increased risk of death (p = 0.029) and tumor progression (p = 0.029). In multivariate analysis, PAI-1 levels remained an independent prognostic factor for OS and PFS with a 3-fold increased risk of death (p = 0.001). If PAI-1 plasma levels were combined with OPN or tumor volume, we found an additive prognostic impact on OS and PFS with a 2.5- to 3-fold increased risk of death (p = 0.01). CONCLUSION: Our results suggest that PAI-1 but not uPA and uPAR might add prognostic information in patients with advanced NSCLC undergoing RT. High pretreatment PAI-1 plasma levels were found predominantly in M0-stage patients and indicate a favorable prognosis as opposed to OPN where high plasma levels are associated with poor survival and metastasis. In combination, PAI-1 and OPN levels successfully predicted outcome and additively correlated with prognosis. These findings support the notion of an antidromic prognostic impact of OPN and PAI-1 plasma levels in the RT of advanced NSCLC. PMID- 29340707 TI - VRK1 and AURKB form a complex that cross inhibit their kinase activity and the phosphorylation of histone H3 in the progression of mitosis. AB - Regulation of cell division requires the integration of signals implicated in chromatin reorganization and coordination of its sequential changes in mitosis. Vaccinia-related kinase 1 (VRK1) and Aurora B (AURKB) are two nuclear kinases involved in different steps of cell division. We have studied whether there is any functional connection between these two nuclear kinases, which phosphorylate histone H3 in Thr3 and Ser10, respectively. VRK1 and AURKB are able to form a stable protein complex, which represents only a minor subpopulation of each kinase within the cell and is detected following nocodazole release. Each kinase is able to inhibit the kinase activity of the other kinase, as well as inhibit their specific phosphorylation of histone H3. In locations where the two kinases interact, there is a different pattern of histone modifications, indicating that there is a local difference in chromatin during mitosis because of the local complexes formed by these kinases and their asymmetric intracellular distribution. Depletion of VRK1 downregulates the gene expression of BIRC5 (survivin) that recognizes H3-T3ph, both are dependent on the activity of VRK1, and is recovered with kinase active murine VRK1, but not with a kinase-dead protein. The H3-Thr3ph-survivin complex is required for AURB recruitment, and their loss prevents the localization of ACA and AURKB in centromeres. The cross inhibition of the kinases at the end of mitosis might facilitate the formation of daughter cells. A sequential role for VRK1, AURKB, and haspin in the progression of mitosis is proposed. PMID- 29340709 TI - [Lichen sclerosus : Symptoms, diagnosis, therapeutic procedures]. AB - Lichen sclerosus is a chronic, inflammatory dermatosis that usually affects the anogenital area. Early diagnosis and subsequent long-term anti-inflammatory treatment may reduce symptoms and signs and the risk of a mutilating course and the development of carcinomas. PMID- 29340710 TI - Production of plant-derived polyphenols in microorganisms: current state and perspectives. AB - Plants synthesize several thousand different polyphenols of which many have the potential to aid in preventing or treating cancer, cardiovascular, and neurodegenerative diseases. However, plants usually contain complex polyphenol mixtures impeding access to individual compounds in larger quantities. In contrast, functional integration of biosynthetic plant polyphenol pathways into microorganisms allows for the production of individual polyphenols as chemically distinct compounds, which can be synthesized in large amounts and can be more easily isolated. Over the last decade, microbial synthesis of many plant polyphenols could be achieved, and along the way, many decisive bottlenecks in the endogenous microbial host metabolism as well as in the heterologous plant pathways could be identified. In this review, we present recent advancements in metabolic engineering of microorganisms for the production of plant polyphenols and discuss how current challenges could be addressed in the future. PMID- 29340708 TI - Molecular recognition of microbial lipid-based antigens by T cells. AB - The immune system has evolved to protect hosts from pathogens. T cells represent a critical component of the immune system by their engagement in host defence mechanisms against microbial infections. Our knowledge of the molecular recognition by T cells of pathogen-derived peptidic antigens that are presented by the major histocompatibility complex glycoproteins is now well established. However, lipids represent an additional, distinct chemical class of molecules that when presented by the family of CD1 antigen-presenting molecules can serve as antigens, and be recognized by specialized subsets of T cells leading to antigen-specific activation. Over the past decades, numerous CD1-presented self- and bacterial lipid-based antigens have been isolated and characterized. However, our understanding at the molecular level of T cell immunity to CD1 molecules presenting microbial lipid-based antigens is still largely unexplored. Here, we review the insights and the molecular basis underpinning the recognition of microbial lipid-based antigens by T cells. PMID- 29340711 TI - Microbial degradation of triclosan by a novel strain of Dyella sp. AB - A novel strain capable of degrading triclosan was isolated from the acclimated activated sludge and identified to be Dyella sp. WW1 based on 16S rDNA analysis. The effect of initial concentration of triclosan (0.2, 1, 5, and 10 mg/L), temperature (15, 25, and 35 degrees C), pH (5, 7, and 9), and additional carbon source on the degradation of triclosan was investigated in a mineral medium. The results showed that Dyella sp. WW1 can use triclosan as sole carbon source and degrade it when initial triclosan concentration was in the range of 0.2-10 mg/L. The optimal condition for Dyella sp. WW1 to degrade triclosan was 15 degrees C and pH 7. TOC removal efficiency was more than 90%. Dyella sp. WW1 can degrade 3,5-dichloro-4-hydrobenzoic via co-metabolism in the presence of triclosan, but cannot degrade trimethoprim, sulfamethoxazole, carbamazepine, and diclofenac. In the presence of glucose, Dyella sp. WW1 firstly utilized glucose to synthesize the biomass and then degraded triclosan. When triclosan concentration decreased to an extent (1.2 mg/L in this study), Dyella sp. WW1 started to use glucose again. The wastewater components did not significantly affect the activity of Dyella sp. WW1 to degrade triclosan. During the biodegradation process, six metabolite products were identified. Based on the metabolites, two degradation pathways were tentatively proposed. In summary, Dyella sp. WW1 could be used for degrading triclosan in the real wastewater. PMID- 29340713 TI - Annual Congress of the European Association of Nuclear Medicine Saturday October1 Wednesday October 3, 2006, Athens Greece. PMID- 29340712 TI - Membrane Position Dependency of the pKa and Conductivity of the Protein Ion Channel. AB - The dependency of current-voltage characteristics of the alpha-hemolysin channel on the channel position within the membrane was studied using Poisson-Nernst Planck theory of ion conductivity with soft repulsion between mobile ions and protein atoms (SP-PNP). The presence of the membrane environment also influences the protonation state of the residues at the boundary of the water-lipid interface. In this work, we predict that Asp and Lys residues at the protein rim change their protonation state upon penetration to the lipid environment. Free energies of protein insertion in the membrane for different penetration depths were estimated using the Poisson-Boltzmann/solvent-accessible surface area (PB/SASA) model. The results show that rectification and reversal potentials are very sensitive to the relative position of channel in the membrane, which in turn contributes to alternative protonation states of lipid-penetrating ionizable groups. The prediction of channel position based on the matching of calculated rectification with experimentally determined rectification is in good agreement with recent neutron reflection experiments. Based on the results, we conclude that alpha-hemolysin membrane position is determined by a combination of factors and not only by the pattern of the surface hydrophobicity as is typically assumed. PMID- 29340714 TI - Taxonomical Resolution and Distribution of Bacterioplankton Along the Vertical Gradient Reveals Pronounced Spatiotemporal Patterns in Contrasted Temperate Freshwater Lakes. AB - We examined the relationship between viruses and co-occurring bacterial communities across spatiotemporal scale in two contrasting freshwater lakes, namely meromictic Lake Pavin and dimictic Lake Aydat (Central France). Next generation sequencing of 16S rRNA genes suggested distinct patterns in bacterioplankton community composition (BCC) between the lakes over depths and seasons. BCC were generally dominated by members of Actinobacteria, Proteobacteria, and Bacteroidetes covering about 95% of all sequences. Oxygen depletion at the bottom waters in Aydat and existence of permanent anoxia in the monimolimnion of Pavin resulted in the occurrence and dominance of lesser known members of lake communities such as Methylotenera, Methylobacter, Gallionella, Sulfurimonas, and Syntrophus in Pavin and Methylotenera and Sulfuritalea in Aydat. Differences in BCC appeared strongly related to dissolved oxygen concentration, temperature, viral infection, and virus-to-bacteria ratio. UniFrac analysis indicated a clear distinction in BCC when the percentage of viral infected bacterial cells and virus-to-bacteria ratio exceeded a threshold level of 10% and 5, respectively, suggesting a link between viruses and their potential bacterial host communities. Our study revealed that in both the lakes, the prevailing environmental factors across time and space structured and influenced the adaptation of bacterial communities to specific ecological niches. PMID- 29340715 TI - Postural control and the relation with cervical sensorimotor control in patients with idiopathic adult-onset cervical dystonia. AB - Cervical dystonia (CD) is a movement disorder characterized by involuntary muscle contractions leading to an abnormal head posture or movements of the neck. Dysfunctions in somatosensory integration are present and previous data showed enlarged postural sway in stance. Postural control during quiet sitting and the correlation with cervical sensorimotor control were investigated. Postural control during quiet sitting was measured via body sway parameters in 23 patients with CD, regularly receiving botulinum toxin treatment and compared with 36 healthy controls. Amplitude and velocity of displacements of the center of pressure (CoP) were measured by two embedded force plates at 1000 Hz. Three samples of 30 s were recorded with the eyes open and closed. Disease-specific characteristics were obtained in all patients by the Tsui scale, Cervical Dystonia Impact Profile (CDIP-58) and Toronto Western Spasmodic Rating Scale (TWSTRS). Cervical sensorimotor control was assessed with an infrared Vicon system during a head repositioning task. Body sway amplitude and velocity were increased in patients with CD compared to healthy controls. CoP displacements were doubled in patients without head tremor and tripled in patients with a dystonic head tremor. Impairments in cervical sensorimotor control were correlated with larger CoP displacements (rs ranged from 0.608 to 0.748). Postural control is impaired and correlates with dysfunction in cervical sensorimotor control in patients with CD. Treatment is currently focused on the cervical area. Further research towards the potential value of postural control exercises is recommended. PMID- 29340716 TI - Congenital blindness limits allocentric to egocentric switching ability. AB - Many everyday spatial activities require the cooperation or switching between egocentric (subject-to-object) and allocentric (object-to-object) spatial representations. The literature on blind people has reported that the lack of vision (congenital blindness) may limit the capacity to represent allocentric spatial information. However, research has mainly focused on the selective involvement of egocentric or allocentric representations, not the switching between them. Here we investigated the effect of visual deprivation on the ability to switch between spatial frames of reference. To this aim, congenitally blind (long-term visual deprivation), blindfolded sighted (temporary visual deprivation) and sighted (full visual availability) participants were compared on the Ego-Allo switching task. This task assessed the capacity to verbally judge the relative distances between memorized stimuli in switching (from egocentric-to allocentric: Ego-Allo; from allocentric-to-egocentric: Allo-Ego) and non switching (only-egocentric: Ego-Ego; only-allocentric: Allo-Allo) conditions. Results showed a difficulty in congenitally blind participants when switching from allocentric to egocentric representations, not when the first anchor point was egocentric. In line with previous results, a deficit in processing allocentric representations in non-switching conditions also emerged. These findings suggest that the allocentric deficit in congenital blindness may determine a difficulty in simultaneously maintaining and combining different spatial representations. This deficit alters the capacity to switch between reference frames specifically when the first anchor point is external and not body-centered. PMID- 29340717 TI - Evaluation of left ventricular function after percutaneous recanalization of chronic coronary occlusions : The role of two-dimensional speckle tracking echocardiography. AB - BACKGROUND: This study evaluated the feasibility of using two-dimensional speckle tracking echocardiography (2D-STE) to monitor left ventricular (LV) and overall function after percutaneous recanalization. METHODS: LV function after percutaneous recanalization was monitored by 2D-STE and conventional echocardiography in 43 patients with coronary chronic total occlusion (CTO) who underwent primary percutaneous coronary intervention (PCI). Follow-ups were carried out 1 day as well as 3 and 6 months after CTO-PCI. At each time point, LV ejection fraction (LVEF) was examined by echocardiography, and LV global longitudinal strain (GLS) was measured by 2D-STE. RESULTS: It was found that the global longitudinal strain assessed with 2D-STE was improved as early as 1 day after CTO-PCI, whereas LVEF tended to improve up to 3 and 6 months after CTO-PCI. CONCLUSION: PCI can effectively improve LV function in patients with CTO. 2D-STE is a superior technique for objectively quantifying the functional change earlier. PMID- 29340718 TI - Drug treatment of heart failure in the elderly. AB - The prevalence of heart failure increases with age. Changes in the age distribution and growing life expectancy will lead to a further rise. However, data concerning drug treatment of heart failure especially in the elderly are scarce. Subgroup analyses of the heart failure trials suggest that drug therapy in older patients should follow the recommendations in the current guidelines. In doing so, several common comorbidities in these patients (e. g., impaired renal function) have to be considered and may have an influence on the therapy (e. g., drug dose, choice of active pharmaceutical ingredient, etc.). Especially in old, multimorbid patients, possible interaction of drugs might play a substantial role. In many cases the main goal of the therapy, especially in the very elderly, is to improve symptoms and quality of life. PMID- 29340719 TI - Treatment with 48-mm everolimus-eluting stents : Procedural safety and 12-month patient outcome. AB - BACKGROUND: Lesion length is a major predictor of adverse outcomes after percutaneous coronary intervention. Long lesions often require multiple stents with variable overlap, which increases the probability of geographical miss and the incidence of mechanical complications, such as side-branch occlusion, restenosis, and stent thrombosis. These pitfalls may be avoided by use of an ultra-long device. METHODS: We retrospectively assessed the performance of the 48 mm Xience Xpedition everolimus-eluting stent (EES) at our institution. RESULTS: A total of 123 patients (mean age: 60.94 years, n = 93 [76%] male) with 129 lesions were identified. Lesions (n = 69, 53.5%) were located in the left anterior descending artery, the right coronary artery (n = 47, 36.4%), and the circumflex artery (n = 8, 6.2%); 83 lesions involved a major side branch. The majority were treated with a provisional single-stent strategy. Other characteristics included significant tortuosity in 15 lesions (11.6%) and moderate-to-heavy calcification in 46 lesions (35.7%). In all cases, balloon pre-dilatation was performed before stent insertion. Successful delivery and deployment of the 48-mm EES device was achieved in 100% of the patients. The mean number of stents per lesion was 1.4, while the mean total stent length was 58 +/- 17.3 mm and mean stent diameter, 3.00 +/- 0.67 mm. The procedural success rate was 99.2%. The 30-day major cardiac adverse event (MACE) rate was 0.8%, while the 12-month MACE was 3.3%. CONCLUSION: The Xience 48-mm EES device appears to be safe and efficacious with a low clinical event rate at the 12-month follow-up. Where feasible, this would support the use of the ultra-long 48-mm platform in lieu of multiple overlapping shorter devices. PMID- 29340720 TI - Correction to: Polymyxin B-immobilized hemoperfusion and mortality in critically ill adult patients with sepsis/septic shock: a systematic review with meta analysis and trial sequential analysis. AB - Owing to an oversight by the authors, Figure 2 in this article was not the version intended for publication. The correct Figure 2, reproduced here, features footnote symbols and Figure 2b includes three studies as described in the main text. PMID- 29340721 TI - Geochemical Assessment of Fluoride Pollution in Groundwater of Tribal Region in India. AB - This study assessed the fluoride (F-) pollution in groundwater samples (n = 170) of tribal regions around Bailadila Iron Ore Mines [BIOM] Complex of Dantewada District, India. Weathering of carbonate and silicate clays were important geogenic sources of dissolved ions. A Piper diagram showed a Ca-HCO3 water type, with positive chloro-alkaline indices illustrating the occurrence of direct base exchange reactions. The F- concentrations varied from 0.08 to 1.95 mg L-1 with a mean value of 0.9 +/- 0.3 mg L-1. Only two groundwater samples showed F- concentrations > 1.5 mg L-1, the drinking water guideline established by the World Health Organization (WHO) and Bureau of Indian Standards (BIS). Factor analysis showed high loadings of HCO3- and F-, indicating alkaline conditions, favoring the dissolution of F- in the groundwater. The K fluor value is less than 10-10.6, indicating that the dissociation of fluorite is very slow. As a result, groundwater locations were under-saturated with respect to fluorite. PMID- 29340722 TI - New frontiers and cutting edge applications in ultra high performance liquid chromatography through latest generation superficially porous particles with particular emphasis to the field of chiral separations. AB - About ten years after their introduction to the market (happened in 2006), the so called second generation superficially porous particles (SPPs) have undoubtedly become the benchmark as well as, very often, the preferred choice for many applications in liquid chromatography (LC), when high efficiency and fast separations are required. This trend has interested practically all kinds of separations, with the only exception of chiral chromatography (at least so far). The technology of production of base SPPs is advanced, relatively simple and widely available. The deep investigation of mass transfer mechanisms under reversed-phase (RP) and normal-phase (NP) conditions for achiral separations has shown the advantages in the use of these particles over their fully porous counterparts. In addition, it has been demonstrated that SPPs are extremely suitable for the preparation of efficient packed beds through slurry packing techniques. However, the research in this field is in continual evolution. In this article, some of the most advanced concepts and modern applications based on the use of SPPs, embracing in particular ultrafast chiral chromatography and the design of SPPs with engineered pore structures or very reduced particle diameter, are revised. We describe modern trends in these fields and focus on those aspect where further innovation and research will be required. Graphical Abstract Word cloud of cutting edge applications of superficially porous particles in liquid chromatography. PMID- 29340723 TI - Veno-Venous Extracorporeal Membrane Oxygenation (VV ECMO) for Acute Respiratory Failure Following Injury: Outcomes in a High-Volume Adult Trauma Center with a Dedicated Unit for VV ECMO. AB - INTRODUCTION: The use of veno-venous extracorporeal membrane oxygenation (VV ECMO) has increased over the past decade. The purpose of this study was to evaluate outcomes in adult trauma patients requiring VV ECMO. METHODS: Data were collected on adult trauma patients admitted between January 1, 2015, and November 1, 2016. Demographics, injury-specific data, ECMO data, and survival to discharge were recorded. Medians [interquartile range (IQR)] were reported. A p value <=0.05 was considered statistically significant. RESULTS: Eighteen patients required VV ECMO during the study period. Median age was 28.5 years (IQR 24-43). Median injury severity score (ISS) was 27 (IQR 21-41); median PaO2/FiO2 (P/F) prior to ECMO cannulation was 61 (IQR 50-70). Median time from injury to cannulation was 3 (IQR 0-6) days. Median duration of ECMO was 266 (IQR 177-379) hours. Survival to discharge was 78%. Survivors had a significantly higher ISS (p = 0.03), longer intensive care unit length of stay (ICU LOS) (p < 0.0004), hospital LOS (p < 0.000004), and time on the ventilator (p < 0.0003). Median time of injury to cannulation was significantly longer in patients who survived to discharge (p = 0.01). There was no difference in P/F ratio prior to cannulation (p = ns). CONCLUSION: We have demonstrated improved outcome of patients requiring VV ECMO following injury compared to historical data. Although shorter time from injury to cannulation for VV ECMO was associated with death, select patients who meet criteria for VV ECMO early following injury should be referred/transferred to a tertiary care facility that specializes in trauma and ECMO care. PMID- 29340724 TI - The Role of Surgery in Treating Resectable Limited Disease of Esophageal Neuroendocrine Carcinoma. AB - BACKGROUND: Esophageal neuroendocrine carcinoma (NEC) is a rare malignant tumor. The role of surgery in resectable limited disease of esophageal NEC remains unclear. How to select a specific group of limited disease of esophageal NEC who might benefit from surgery remains to be answered. METHODS: Patients undergoing esophagectomy for resectable limited disease of esophageal NEC in our department from January 2007 to June 2015 were analyzed. TNM staging system was applied to describe those patients, and according to their different long-term prognosis after surgery, those patients were subgrouped into surgery response limited disease (SRLD) group and surgery non-response limited disease (SNRLD) group. Both univariate and multivariate analyses were applied to identify potential prognostic factors. RESULTS: A total of 72 patients with resectable limited disease of esophageal NEC were identified for analysis. The median survival time of those patients was 21.5 months. There was no significant survival differences among stage I, stage IIA, and stage IIB patients, but all these patients had significantly longer survival than stage III patients. Therefore, stage I, stage IIA, and stage IIB patients were aggregated together as SRLD group, and stage III patients were aggregated as SNRLD group. SRLD patients obtained significantly longer survival than SNRLD patients in both univariate analysis and multivariate analysis. Moreover, adjuvant therapy could significantly benefit SRLD patients (P = 0.004) but could not benefit SNRLD patients (P = 0.136). CONCLUSIONS: Different responses to surgery existed in resectable limited disease of esophageal NEC indicating the need of further subgrouping for those patients. The resectable limited disease of esophageal NEC could be further subgrouped into SRLD group and SNRLD group according to the TNM staging system. PMID- 29340725 TI - Decision-Making in Management of the Complex Trauma Patient: Changing the Mindset of the non-trauma Surgeon. AB - BACKGROUND: European surgeons are frequently subspecialized and trained primarily in elective surgical techniques. As trauma leaders, they may occasionally have to deal with complex polytrauma, advanced management techniques, differing priorities, and the need for multidisciplinary care. There is a lack of expertise, experience, and a low trauma volume, as well as a lack of research, with limited support as to the decision-making and teaching challenges present. We studied what experienced trauma experts describe as the challenges that are specific to the advanced surgical decision-making required, whether civilian, humanitarian, or military. METHODS: Design-based research using combined methods including interviews, reviews of authentic trauma cases, and video-recorded resuscitations performed at a high-volume civilian academic trauma center. RESULTS: Several educational dilemmas were identified: (1) thinking physiologically, (2) the application of damage control resuscitation and surgery, (3) differing priorities and time management, (4) impact of environment, (5) managing limited resources, (6) lack of general surgical skills, (7) different cultural behavior, and (8) ethical issues. CONCLUSION: The challenges presented, and the educational domains identified, constitute a basis for improved development of education and training in complex surgical decision-making. This study contributes new knowledge about the mindset required for decision-making in patients with complex multisystem trauma and competing priorities of care. This is, especially important in countries having a low intensity of trauma in both military and civilian environments, and consequential limited skills, and lack of expertise. Guidelines focused on the same decision-making process, using virtual patients and blended learning, can be developed. PMID- 29340726 TI - Prognostic Prediction Models for Resection of Large Hepatocellular Carcinoma: A Korean Multicenter Study. AB - BACKGROUND: We developed a prognostic prediction model (PPM) using 4 factors for hepatic resection (HR) of large hepatic cellular carcinoma (HCC). Multiplication of alpha-fetoprotein (AFP), des-gamma-carboxy prothrombin, and tumor volume (TV) (ADV score) is a surrogate marker for post-resection prognosis. This study intended to validate the predictive power of 4-factor PPM and to develop new ADV score-based PPM. METHODS: A total of 526 patients who underwent HR for solitary HCC >= 8 cm were selected from 9 Korean institutions between 2008 and 2014. RESULTS: Median tumor diameter and TV were 11.0 cm and 398 mL, respectively. Tumor recurrence and patient survival rates were 53.0 and 78.4% at 1 year and 70.2 and 49.3% at 5 years, respectively. Independent risk factors for both tumor recurrence and patient survival included AFP >= 100 ng/mL, hypermetabolic FDG positron emission tomography (PET), microvascular invasion and satellite nodules, which comprised 4 factors of the PPM. Five subgroups based on the number of involved risk factors exhibited significant differences in tumor recurrence and patient survival. ADV score cutoff was set at 7log (ADV7log) after cluster prognostic analysis. Patient grouping according to combination of ADV7log and FDG PET findings (ADV7log-PET) exhibited significant differences in tumor recurrence and patient survival, comparable to those of the 4-factor PPM. CONCLUSIONS: Two PPMs using 4 risk factors and ADV7log-PET could reliably predict the risk of early HCC recurrence and long-term survival outcomes in patients who underwent HR for large HCC. We believe that these PPMs can guide surgical treatment for large HCCs from preoperative HR planning to post-resection follow-up. PMID- 29340727 TI - Parastomal Hernia Repair with a 3D Funnel Intraperitoneal Mesh Device and Same Sided Stoma Relocation: Results of 56 Cases: Reply. PMID- 29340729 TI - Pulmonary Valve Morphology in Patients with Bicuspid Aortic Valves. AB - The aortic and pulmonary valve share a common developmental origin from the embryonic arterial trunk. Bicuspid aortic valve is the most common congenital anomaly and can occur isolated as well as in association with other congenital heart disease (CHD). Data on pulmonary valve morphology in these cases are scarce. In this study, we aimed to determine pulmonary valve morphology in hearts with BAV associated with CHD. In 83 post-mortem heart specimens with BAV and associated CHD, pulmonary valve morphology was studied and related to BAV morphology. In 14/83 (17%) hearts, the pulmonary valve was affected, bicuspid in 8/83 (10%), dome-shaped in 3/83 (4%) and atretic in 3/83 (4%). In specimens with a bicuspid pulmonary valve, 5/8 (63%) had a strictly bicuspid aortic valve (without raphe), 2/3 hearts (67%) with dome-shaped pulmonary valves and 2/3 hearts (67%) with atretic pulmonary valves had BAV without raphe. Six out of eight (75%) specimens with a bicuspid pulmonary valve had a perimembranous ventricular septal defect (VSD). 4/8 (50%) specimens with a bicuspid pulmonary valve were associated with chromosomal abnormalities: 3 (38%) had trisomy 18 and 1 (13%) had trisomy 13. In BAV with associated CHD, abnormal pulmonary valve morphology was observed in 17% of the hearts. The majority of hearts with abnormal pulmonary valve morphology had a Type B bicuspid aortic valve (without raphe). Bilateral semilunar valvular disease is associated with Type B BAVs and in many cases related to chromosomal abnormalities. As this study was performed in post-mortem specimens with high frequency of associated CHD, caution is warranted with application of these results to the general BAV population. PMID- 29340728 TI - Indocyanine Green Retention Rates at 15 min Predicted Hepatic Decompensation in a Western Population. AB - BACKGROUND: ICGR15 is widely used in Asia to evaluate the liver reserve before hepatectomy, but not in Western countries where patients are selected using the MELD score and/or platelet count. Postoperative liver failure is rare nowadays, but hepatic decompensation (HD), defined by 3-month postoperative ascites, impairs quality of life and survival. The aim of this study was to evaluate the relevance of indocyanine green retention rate at 15 min (ICGR15) before liver resection in Western countries, in order to predict HD. METHODS: This prospectively designed study included consecutive adult patients undergoing hepatectomy for hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) in three French HPB centres. RESULTS: Between 2012 and 2014, 147 patients were included (80% of HCC and 20% of ICC). The Child-Pugh status was grade A for all patients. In the overall population and in F3/F4 patients (n = 83), ICGR15 (P = 0.02) and platelet counts (P = 0.02) were predictive of HD under multivariate analysis. Among F3/F4 patients undergoing minor hepatectomy with preoperative ICGR15 > 15%, the rate of HD was 36%. In the overall population, ICGR15 was predictive of HD (P = 0.02) and postoperative ascites (P = 0.03). The ROC curve identified a cut-off point of 15% as being associated with increased HD, with good accuracy for ICGR15 in the study population (AUROC 0.73), mainly before minor hepatectomy (AUROC 0.79). CONCLUSIONS: In patients with HCC and ICC selected using the MELD score and platelet rate, an ICGR15 > 15% is a relevant, non-invasive and clearly accurate method to predict HD specially before minor hepatectomy. PMID- 29340730 TI - Age-Dependent Association Between Pre-transplant Blood Transfusion and Outcomes of Pediatric Heart Transplantation. AB - Avoidance of red blood cell (RBC) transfusions in patients awaiting heart transplantation (HTx) has been suggested to minimize the risk of allosensitization. Although recent studies have suggested that an immature immune system in younger HTx recipients may reduce risks associated with RBC transfusion, the role of age in moderating the influence of transfusion on HTx outcomes remains unclear. We used available data from a national transplant registry to explore whether the association between pre-transplant transfusions and outcomes of pediatric HTx varies by patient age. De-identified data were obtained from the United Network for Organ Sharing registry, including first-time recipients of isolated HTx performed at age 0-17 years in 1995-2015. The primary exposure was receiving blood transfusions within 2 weeks prior to HTx. Patient survival after HTx was evaluated using multivariable Cox proportional hazards, where age at transplant was interacted with exposure to pre-transplant transfusion. Age-specific hazard ratios (HRs) of pre-transplant transfusion were plotted across ages at transplant. There were 4883 patients meeting inclusion criteria, of whom 1258 died during follow-up (mean follow-up duration 6 +/- 5 years). Patients receiving pre-transplant transfusions were distinguished by younger age, higher prevalence of prior cardiac surgery, greater likelihood of being in the intensive care unit, and greater use of left ventricular assist device bridge to transplant. In multivariable analysis, pre-transplant transfusions were associated with increased mortality hazard among infants < 1 year of age (HR = 1.46; 95% CI 1.23, 1.74; p < 0.001). For each additional year of age, the excess hazard associated with pre-transplant transfusions decreased by 3% (interaction HR = 0.97; 95% CI 0.98, 0.99; p = 0.003). By age 8, the association between pre-transplant transfusions and post-transplant mortality was no longer statistically significant (HR = 1.15; 95% CI 0.99, 1.32; p = 0.060). Pre-transplant transfusions were associated with increased mortality hazard only among younger children (age < 8 years) undergoing HTx. These data support the current practices of transfusion avoidance prior to HTx, particularly in younger patients. PMID- 29340732 TI - [Electronic decision support to promote medication safety]. AB - Because of its inherent complexity, it is a considerable challenge to tailor drug treatment to a prevalent disease and its subgroups, which are increasingly defined by genomic variability (personalized medicine) and require consideration of context information such as co-morbidity, co-medication, patient preferences, and the specific characteristics of the healthcare sector. Thus, optimum treatment decisions might not be taken intuitively any longer, because decisions must be made both rapidly and increasingly based on analyses of complex relations of numerous variables that exceed the processing performance of a human brain. Hence, computer support is indispensable to ensure error-free high-performance medicine. A key step in computer-supported medication safety is to implement a computerized physician order entry (CPOE) system that compiles a patient's medication in a structured and coded format enabling the link to clinical decision support (CDS) systems. Implementing a CPOE is hence a strategic step for a hospital, which is crucial to exhaustingly and consistently prevent medication errors. Thereby, the best performance of a CPOE is achieved if it is deeply integrated into an electronic patient record thus enabling access to relevant patient information, which again has to be structured to allow processing. To efficiently support drug treatment, CDS systems must fulfill high-quality standards with regard to underlying data, integration, and user-interaction to ensure that they support but do not impede the provision of care. PMID- 29340731 TI - Sensitive Cardiac Troponins: Could They Be New Biomarkers in Pediatric Pulmonary Hypertension Due to Congenital Heart Disease? AB - To analyze the role of sensitive cardiac troponin I (scTnI) and high-sensitive troponin T (hscTnT) in the determination of myocardial injury caused by volume and pressure load due to pulmonary hypertension (PH) and to investigate if these markers may be useful in the management of PH in childhood. Twenty-eight patients with congenital heart disease (CHD) with left to right shunt and PH, 29 patients with CHD with left to right shunt but without PH, and 18 healthy children, in total 75 individuals, were included in the study. All cases were aged between 4 and 36 months. Echocardiographic evaluation was performed in all cases, and invasive hemodynamic investigation was performed in 33 cases. Blood samples were obtained from all cases, for the measurement of brain natriuretic peptide (BNP), pro-brain natriuretic peptide (pro-BNP), sensitive cardiac troponin I (scTnI), and high-sensitive troponin T (hscTnT) levels. The mean BNP, pro-BNP, scTnI, and hsTnT levels were statistically significantly higher in patients with PH than in the patients without PH (p < 0.001). A statistically significant positive correlation was determined between pulmonary artery systolic pressure and scTnI and hscTnT levels (r = 0.34 p = 0.01, r = 0.46 p < 0.001, respectively) levels. Pulmonary hypertension determined in congenital heart diseases triggers myocardial damage independently of increased volume or pressure load and resistance, occurring by disrupting the perfusion via increasing ventricular wall tension and the myocardial oxygen requirement. Serum scTnI and hscTnT levels may be helpful markers to determine the damage associated with PH in childhood. PMID- 29340737 TI - [Rhinoplasty-state of the art]. PMID- 29340736 TI - Risk factors for early infection following hemiarthroplasty in elderly patients with a femoral neck fracture. AB - PURPOSE: Periprosthetic joint infections (PJI) after hemiarthroplasty for geriatric femoral neck fractures are a devastating complication that results in serious morbidity and increased mortality. Identifying risk factors associated with early infection after HA for hip fractures may offer an opportunity to address and prevent this complication in many patients. The aim of this study was to evaluate preoperative risk factors for early PJI after HA in hip fracture patients. METHODS: From January 2010 to December 2015, 312 femoral neck fractures (AO/OTA 31-B) in 305 patients were included in this single-center, retrospective study. PJI was defined according to the Centers for Disease Control (CDC) definition of deep incisional surgical site infection. Early infection referred to a postoperative period of 4 weeks. Binary univariable and multivariable regression analysis with backward elimination was applied to identify predictors of PJI. RESULTS: Median age of all patients was 83.0 (IQR 76-89) years. We identified 16 (5.1%) early PJI which all required surgical revision. Median length of in-hospital stay (LOS) was 20.0 (IQR 10-36) days after PJI compared to 10.0 (8-15) days without deep wound infection. In-hospital mortality was 30.8 vs. 6.6%, respectively. Preoperative CRP levels (OR 1.009; 95% CI 1.002-1.018; p = 0.044), higher BMI (OR 1.092; 95% CI 1.002-1.189; p = 0.044) and prolonged surgery time (OR 1.013; 95% CI 1.000-1.025; p = 0.041) were independent risk factors for PJI. Excluding infection following major revision due to mechanical complications identified preoperative CRP levels (OR 1.012; 95% CI 1.003-1.021; p = 0.007) and chronic glucocorticoid therapy (OR 6.314; 95% CI 1.223-32.587; p = 0.028) as risk factors, a clear trend was seen for higher BMI (OR 1.114; 95% CI 1.000-1.242; p = 0.051). A cut-off value at CRP levels >= 14 mg/l demonstrated a sensitivity of 69% and a specificity of 70% with a fair accuracy (AUC 0.707). CONCLUSION: Preoperative serum CRP levels, higher BMI and prolonged surgery time are independent predictors of early PJI. Excluding PJI secondary to major revision surgery revealed chronic glucocorticoid use as a risk factor apart from preoperative CRP levels. PMID- 29340733 TI - Population pharmacokinetics of lamotrigine co-administered with valproic acid in Chinese epileptic children using nonlinear mixed effects modeling. AB - PURPOSE: The aims of this study were to develop a population pharmacokinetic (PPK) model of lamotrigine (LTG) in Chinese epileptic children by using nonlinear mixed effects modeling (NONMEM) and to investigate the effects of valproic acid (VPA) and genetic polymorphisms of the major metabolizing enzymes (UGT1A4, UGT2B7) on the pharmacokinetics of LTG. METHODS: A total of 182 epileptic children who were treated with LTG as monotherapy or as part of combination therapy were included in this study as the model group, and 61 patients were included as the validation group. The steady-state serum trough concentrations of LTG and VPA were determined using a high-performance liquid chromatography method and fluorescence polarization immunoassay, respectively. Patients were genotyped for three single nucleotide polymorphisms (UGT1A4 142T>G, UGT2B7 -161C>T, and UGT2B7 802C>T). PPK analysis was performed with NONMEM using first-order absorption and elimination. Bootstrap, normalized prediction distribution errors and external evaluations were performed to determine the stability and predictive performance of the model. RESULTS: For the final model, the oral clearance (CL/F) of LTG was estimated to be 0.705 L/h with inter-individual variability (IIV) of 21.3%. The estimates generated by NONMEM indicated that the LTG CL/F was significantly influenced by patient body weight (increased with an exponent of 0.574) and VPA concentration (decreased with linearity of 0.273 with co administration). However, no significant effects of UGT1A4 or UGT2B7 polymorphisms on LTG CL/F were noted in this population of Chinese children. CONCLUSION: This study confirms the interaction of LTG with VPA, which likely depends on VPA concentration. The LTG PPK model developed in this study could be useful for individualizing LTG dosage regimens in pediatric patients receiving combination therapy, especially therapy that includes VPA. PMID- 29340738 TI - ? PMID- 29340739 TI - ? PMID- 29340740 TI - [Paraneoplastic syndromes in rheumatology]. AB - Malignancies can present as inflammatory rheumatic diseases. These rheumatic paraneoplastic syndromes are rare, but characteristic in their pattern. This article focuses on epidemiology, clinical and diagnostic features as well as treatment of paraneoplasic rheumatic diseases such as paraneoplastic arthritides, vasculitides, myositis and hypertrophic osteoarthropathy. The knowledge of their clinical patterns is of utmost importance for early diagnosis and prognosis of yet undiagnosed malignancies. PMID- 29340741 TI - [Platelet inhibition in patients with coronary, cerebral and peripheral macroangiopathy : What, when and how long?] AB - BACKGROUND: Inhibition of platelet aggregation can reduce the rate of vascular events in patients with coronary artery disease, carotid artery stenosis and symptomatic peripheral arterial disease. The choice of platelet inhibitors in monotherapy and combination therapy as well as the duration of dual platelet inhibition depend on the clinical situation and individual patient characteristics. GOAL: The present review summarizes the latest data from clinical trials and recommendations regarding platelet inhibition in coronary, cerebral and peripheral arterial disease. DATA: A large number of randomized trials on platelet inhibition in different clinical situations have been performed, allowing evidence-based recommendations on the choice of drugs and duration of treatment. Moreover, new guidelines of European professional societies on platelet inhibition in patients with coronary, cerebral and peripheral arterial disease have been recently published. CONCLUSION: Based on latest randomized trials and major society guidelines, a number of recommendations on platelet inhibition in stable coronary artery disease, after stent implantation, after acute coronary syndromes and in cerebral and peripheral arterial disease can be made. PMID- 29340742 TI - [Wilson disease]. AB - Wilson disease is a rare hereditary disorder of copper metabolism. The genetic defect is caused by various mutations in the copper-transporting enzyme ATP7B, located mainly in the liver and brain. Clinical symptoms are highly variable, with any combination of hepatic and/or neurological or psychiatric manifestations. The age of onset varies from early childhood to young adults and can even be manifested in later ages. The clinical diagnosis is based on a combination of clinical, biochemical and molecular markers. Treatment using chelating agents and zinc salts is effective when started early or even better at presymptomatic stages of the disease. PMID- 29340743 TI - Recent Trends and Advances in Cancer-Induced Bone Disease. PMID- 29340744 TI - Highlight report: 'Big data in the 3R's: outlook and recommendations', a roundtable summary. PMID- 29340745 TI - A 6-week warm-up injury prevention programme results in minimal biomechanical changes during jump landings: a randomized controlled trial. AB - PURPOSE: To examine the extent to which an ACL injury prevention programme modifies lower extremity biomechanics during single- and double-leg landing tasks in both the sagittal and frontal plane. It was hypothesized that the training programme would elicit improvements in lower extremity biomechanics, but that these improvements would be greater during a double-leg sagittal plane landing task than tasks performed on a single leg or in the frontal plane. METHODS: Ninety-seven competitive multi-directional sport athletes that competed at the middle- or high-school level were cluster randomized into intervention (n = 48, age = 15.4 +/- 1.0 years, height = 1.7 +/- 0.07 m, mass = 59.9 +/- 11.0 kg) and control (n = 49, age = 15.7 +/- 1.6 years, height = 1.7 +/- 0.06 m, mass = 60.4 +/- 7.7 kg) groups. The intervention group participated in an established 6-week warm-up-based ACL injury prevention programme. Three-dimensional biomechanical analyses of a double- (SAG-DL) and single-leg (SAG-SL) sagittal, and double- (FRONT-DL) and single-leg (FRONT-SL) frontal plane jump landing tasks were tested before and after the intervention. Peak angles, excursions, and external joint moments were analysed for group differences using 2 (group) * 4 (task) repeated measures MANOVA models of delta scores (post-pre-test value) (alpha < 0.05). RESULTS: Relative to the control group, no significant biomechanical changes were identified in the intervention group for any of the tasks (n.s.). However, a group by task interaction was identified for knee abduction (lambda = 0.80, p = 0.02), such that participants in the intervention group showed relative decreases in knee abduction moments during the SAG-DL compared to the SAG-SL (p = 0.005; d = 0.45, CI = 0.04-0.85) task. CONCLUSION: A 6-week warm-up-based ACL injury prevention programme resulted in no significant biomechanical changes during a variety of multi-directional jump landings. Clinically, future prevention programmes should provide a greater training stimulus (intensity, volume), more specificity to tasks associated with the mechanism of ACL injury (single-leg, non sagittal plane jump landings), and longer programme duration (> 6 weeks) to elicit meaningful biomechanical changes. LEVEL OF EVIDENCE: I. PMID- 29340746 TI - Similar clinical outcomes following collagen or polyurethane meniscal scaffold implantation: a systematic review. AB - PURPOSE: The purpose of this systematic review is to evaluate the current literature in an effort to assess specific clinical outcomes following meniscal scaffold implantation using the two available scaffolds: Collagen Meniscal Implant (CMI) and the Actifit polyurethane meniscal scaffold. METHODS: A systematic review was performed by searching PubMed, Embase, and Cochrane Library to find studies evaluating clinical outcomes of patients undergoing meniscal scaffold implantation. Search terms used were "meniscus", "meniscal", "scaffold", and "implant". Studies were evaluated based on scaffold type, treatment failure rates, patient-reported outcome scores, concomitant procedures, and radiological findings. Radiological findings were recorded using the Genovese scale to assess morphology and signal intensity and the Yulish score to assess articular cartilage. RESULTS: Nineteen studies (1 level I, 1 level II, 17 level IV evidence) were identified that met inclusion criteria, including a total of 658 patients (347 Actifit, 311 CMI). The overall average follow-up was 45 months. Treatment failure occurred in 9.9% of patients receiving the Actifit scaffold at a mean follow-up of 40 months and 6.7% of patients receiving CMI at a mean follow up of 44 months (n.s.). However, the rate of failure ranged from 0 to 31.8% amongst the included studies with a variable definition of failure. Additionally, overlapping patients and presence of concomitant surgeries such as anterior cruciate ligament reconstruction (ACLR) and high tibial osteotomy (HTO) may have a significant influence on these results. Outcomes for the Visual Analog Scale (VAS) for pain, Lysholm knee score, and Tegner activity score improved from preoperatively to latest follow-up in both groups, while the Knee Injury and Osteoarthritis Outcome Score and International Knee Documentation Committee scores improved from preoperatively to latest follow-up for Actifit scaffold patients. Overall, patients receiving CMI scaffolds had higher grades for Genovese morphology and signal intensity when compared to Actifit scaffold patients. CONCLUSION: Patients undergoing meniscal scaffold implantation with either CMI or Actifit scaffold can both be expected to experience improvement in clinical outcomes when used in association with concomitant procedures such as ACLR and HTO. LEVEL OF EVIDENCE: IV, systematic review. PMID- 29340747 TI - The role of muscle function after anterior cruciate ligament rupture and treatment. PMID- 29340749 TI - In Pursuit of Effective Volume Reduction and Enhanced Aesthetics for Treatment of Gigantomastia Using Superior Dermoglandular Pedicle. AB - BACKGROUND: Gigantomastia is defined as extreme hypertrophy of the female breast. It is a disabling condition that presents unique challenges to plastic surgeons. Initial breast volume is an important factor affecting the success of the reduction. Usually, it is difficult to achieve small-sized breasts, and long-term results are often unsatisfactory, resulting in complications such as "bottoming out" deformities. METHODS: This paper presents a case series involving 40 patients (mean age 44.2 +/- 12.5) with gigantomastia. Reductions were performed by superior nipple-areola complex pedicle with or without liposuction. Total resection weight ranged from 2050 to 5398 g (mean 3066 +/- 944.2). Generally, the literature emphasizes the unreliability of the long superior pedicle when used to reduce the size of very large breasts. The technical steps for this procedure have been clearly described, and ways in which to overcome technical difficulties and attain effective volume reduction with minimal complications were presented. RESULTS: The technique described here is applicable to all gigantomastia cases; even very large, pendulous breasts could be effectively reduced. Physical symptoms rapidly improved during the early postoperative period, patients' aesthetic satisfaction scores were high (4.6/5), and none of the patients complained of flat breasts. The rate of partial areola necrosis was 5%, and the rate of complete areola necrosis was 2.5%. These rates are comparable to those in the literature. CONCLUSION: Using the technique described above, superior pedicle can be applied to all gigantomastia cases and enhanced aesthetic results can be obtained with minimal complications. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . PMID- 29340750 TI - A Pilot Study Evaluating the Efficacy and Safety of ARTISS Human Fibrin Sealant in External Rhinoplasty. AB - BACKGROUND: Fibrin sealant application in rhytidectomy has previously demonstrated a reduction in adverse events and drainage volume. Fibrin sealant offers multiple potential benefits including decreasing downtime, reducing complication rates, and improving patient satisfaction. In this study, we evaluated the efficacy and safety of ARTISS [fibrin sealant (human)] in external rhinoplasty. METHODS: Nine healthy participants between the ages of 18 and 50 seeking external rhinoplasty completed this study. All subjects were randomized into control and treatment groups and then underwent external rhinoplasty, with only the treatment group receiving ARTISS [fibrin sealant (Human)] during surgery. Photographs were taken before surgery and 1 day, 1 week, 1 month, 3 months and 6 months after surgery and used in a blinded assessment of recovery time and esthetic improvement with ecchymosis and satisfaction scales. Subject recovery time, downtime, and self-esteem were evaluated at 1 day, 1 week, 1 month and 6 months after surgery. Recovery time was determined by live assessment of edema and ecchymosis using categorical scales. Subject downtime was assessed through a 30-day patient diary and a downtime questionnaire. Subject self-esteem was evaluated with the Heatherton & Polivy State Self-Esteem Scale. The degree of technical ease with the product was determined by the treating investigator with a 10-cm Visual Analog Scale. RESULTS: Patients treated with ARTISS intra operatively reported significantly higher self-esteem 1 month and 6 months following external rhinoplasty. The ARTISS EasysprayTM Spray Set was rated as technically easy to administer. CONCLUSION: The use of ARTISS fibrin sealant in external rhinoplasties is a safe and easy method and may enhance patient self esteem. Larger studies are warranted to either verify or challenge the validity of our findings. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . PMID- 29340748 TI - Lack of level I evidence on how to prevent infection after elective shoulder surgery. AB - PURPOSE: Infection is a concern after all orthopedic procedures, including shoulder surgery. This systematic review of literature aimed to determine risk factors for infection as well as the availability and effectiveness of measures utilized to prevent infection after elective shoulder surgery. METHODS: An electronic database search was performed using MEDLINE (1950-October 2017), EMBASE (1980-October 2017), CINAHL (1982-October 2017), and the Cochrane database to identify studies reporting a risk factor or preventive measure for infection after shoulder surgery. RESULTS: Fifty-one studies were eligible for inclusion. Risk factors identified for infection were male sex, the presence of hair, receiving an intra-articular cortisone injection within the 3 months prior to surgery, smoking, obesity, and several comorbidities. The only preventive measure with level I evidence was for the use of chlorhexidine wipes for cleansing the skin in the days prior to surgery and for the use of ChloraPrep or DuraPrep over povodine and iodine to prep the skin at the time of surgery. Level II-IV evidence was found for other infection prevention methods such as intravenous antibiotic prophylaxis. CONCLUSION: There are many risk factors associated with developing an infection after elective shoulder surgery. Many preventive measures have been described which may decrease the risk of infection; however, most lack a high level evidence to support them. The findings of this systematic review are clinically relevant as it has been shown that infection after shoulder surgery results in poor patient-reported outcomes and pose a significant financial burden. As surgeons the goal should be to prevent infections to avoid the morbidity for patients and the increased cost for society. LEVEL OF EVIDENCE: IV systematic review of literature. PMID- 29340751 TI - Correction to: Improving the baking quality of bread wheat by genomic selection in early generations. AB - Unfortunately, the co-author, Dr. Gungor was missed out in the authorship of original publication by mistake and it is updated now. PMID- 29340752 TI - The effect of INDEHISCENT point mutations on silique shatter resistance in oilseed rape (Brassica napus). AB - KEY MESSAGE: This study elucidates the influence of indehiscent mutations on rapeseed silique shatter resistance. A phenotype with enlarged replum-valve joint area and altered cell dimensions in the dehiscence zone is described. Silique shattering is a major factor reducing the yield stability of oilseed rape (Brassica napus). Attempts to improve shatter resistance often include the use of mutations in target genes identified from Arabidopsis (Arabidopsis thaliana). A variety of phenotyping methods assessing the level of shatter resistance were previously described. However, a comparative and comprehensive evaluation of the methods has not yet been undertaken. We verified the increase of shatter resistance in indehiscent double knock-down mutants obtained by TILLING with a systematic approach comparing three independent phenotyping methods. A positive correlation of silique length and shatter resistance was observed and accounted for in the analyses. Microscopic studies ruled out the influence of different lignification patterns. Instead, we propose a model to explain increased shattering resistance of indehiscent rapeseed mutants by altered cell shapes and sizes within the contact surfaces of replum and valves. PMID- 29340753 TI - Can spelt wheat be used as heterotic group for hybrid wheat breeding? AB - KEY MESSAGE: Spelt wheat is a distinct genetic group to elite bread wheat, but heterosis for yield and protein quality is too low for spelt to be recommended as heterotic group for hybrid breeding in wheat. The feasibility to switch from line to hybrid breeding is currently a hot topic in the wheat community. One limitation seems to be the lack of divergent heterotic groups within wheat adapted to a certain region. Spelt wheat is a hexaploid wheat that can easily be crossed with bread wheat and that forms a divergent genetic group when compared to elite bread wheat. The aim of this study was to investigate the potential of Central European spelt as a heterotic group for Central European bread wheat. We performed two large experimental field studies comprising in total 43 spelt lines, 14 wheat lines, and 273 wheat-spelt hybrids, and determined yield, heading time, plant height, resistance against yellow rust, leaf rust, and powdery mildew, as well as protein content and sedimentation volume. Heterosis of yield was found to be lower than that of hybrids made between elite wheat lines. Moreover, heterosis of the quality trait sedimentation volume was negative. Consequently, spelt wheat does not appear suited to be used as heterotic group in hybrid wheat breeding. Nevertheless, high combining abilities of a few spelt lines with elite bread wheat lines make them interesting resources for pre breeding in bread wheat. Thereby, the low correlation between line per se performance and combining ability of these spelt lines shows the potential to unravel the breeding value of genetic resources by crossing them to an elite tester. PMID- 29340754 TI - Preoperative evaluation of cochlear implantation through the round window membrane in the facial recess using high-resolution computed tomography. AB - PURPOSE: We evaluated the risk of cochlear implantation through the round window membrane in the facial recess through a preoperative analysis of the angle between the facial nerve-round window and the cranial midline using high resolution temporal bone CT. METHODS: Temporal bone CT films of 176 patients with profound sensorineural hearing loss at our hospital from 2013 to 2015 were reviewed. The preoperative temporal bone CT scans of the patients were retrospectively analysed. The vertical distance (d value) from the leading edge of the facial nerve to the posterior wall of the external auditory canal and the angle (alpha value) between the line from the leading edge of the facial nerve to the midpoint of the round window membrane and the median sagittal line on the round window membrane plane were measured. Based on intraoperative observation, the round window membrane was divided into complete round window membrane exposure (group A), partial exposure (group B), and unexposed (group C) groups, and statistical analysis was performed. RESULTS: The alpha value could be effectively measured for all 176 patients (62.60 +/- 7.12), and the d value could be effectively measured for 95 cases (5.53 +/- 1.00). An analysis of the correlation between the alpha and d values of these 95 cases found a negative correlation. Of the 176 cases, one-way analysis of variance (ANOVA) showed that the differences among the groups were significant [P = 0.000 (< 0.05)]. CONCLUSION: The angle (alpha value) between the line connecting the leading edge of the facial nerve to the midpoint of the round window and the median sagittal line measured in preoperative CT scans was associated with the difficulty of intraoperatively exposing the round window membrane. When the alpha value was larger than a certain degree, the difficulty of exposing the round window membrane was increased. In such cases, the surgeon should fully expose the round window membrane during surgery, which could result decrease the likelihood of complications. PMID- 29340755 TI - Multiple invasion speeds in a two-species integro-difference competition model. AB - We study an integro-difference competition model for the case that two species consecutively invade a habitat. We show that if a species spreads into a traveling wave of its rival, or if two species expand their spatial ranges in both directions, in a direction where open space is available, the species with larger invasion speed can always establish a wave moving into open space with its own speed. We demonstrate that when one species is stronger in competition, under appropriate conditions, the speeds at which the boundaries between two species move can be analytically determined. We find that in general there are multiple invasion speeds in the model. It is possible for a species to develop two separate waves propagating with different invasion speeds. It is also possible for each species to establish a single wave spreading with distinct speeds in both directions. The mathematical analysis relies on linear determinacy and new techniques developed. PMID- 29340756 TI - Differential effect of a patient-education transition intervention in adolescents with IBD vs. diabetes. AB - : Patient education programs (PEPs) to improve disease management are part of standard and regular treatment in adolescents with diabetes. In Germany, youth with inflammatory bowel disease (IBD) receive individual counseling but not PEPs in group settings. Generic PEPs have been developed in order to improve transition from child-centered to adolescent health services. The aim of the study was to investigate the effects of a transition-oriented PEP on quality of life (QoL) and self-management in young patients with IBD (PEP naive), compared to patients with diabetes (familiar with PEPs). A 2-day transition workshop was oriented at improving psychosocial skills and addressed both generic as well as specific aspects of the condition. A controlled trial on the outcomes of a generic transition-oriented PEP was conducted in 14- to 20-year-old patients with IBD (n = 99) and diabetes (n = 153). Transition competence and QoL were assessed at baseline and 6-month follow-up. Results show that the intervention lead to a significant increase in QoL only in patients with IBD. The PEP significantly improved transition competence in both groups, however to a higher extent in subjects with IBD. CONCLUSION: Transition-oriented PEPs can have differential effects in different patient groups. However, this needs further longitudinal investigations. What is Known: * To date, evidence has accumulated concerning the effectiveness of patient education programs (PEPs) in pediatric health care for chronic conditions such as type 1 diabetes, asthma, atopic dermatitis, or obesity but is less documented in inflammatory bowel disease (IBD). In particular, PEPs in the transition period have not been investigated in youth with IBD. * The current study focuses on evaluating a PEP for transition preparation and management designed to be generically used across different chronic conditions since many aspects of managing chronic conditions share commonalities across conditions. The 2-day workshop included condition-specific modules adapted to the specific medical needs but was otherwise similar in quality and organization among different conditions. What is New: * The transition-oriented PEP was effective in enhancing self-management and transition management skills in both patients with IBD and diabetes; however, effects were higher in youth with IBD. A significant impact of the intervention on patients' QoL compared to the control group was only identified in youth with IBD. * We recommend that patients with IBD have access to PEP as a standard treatment as well as to a transition program during the course of illness. PMID- 29340757 TI - Comparing brain activity patterns during spontaneous exploratory and cue instructed learning using single photon-emission computed tomography (SPECT) imaging of regional cerebral blood flow in freely behaving rats. AB - Learning can be categorized into cue-instructed and spontaneous learning types; however, so far, there is no detailed comparative analysis of specific brain pathways involved in these learning types. The aim of this study was to compare brain activity patterns during these learning tasks using the in vivo imaging technique of single photon-emission computed tomography (SPECT) of regional cerebral blood flow (rCBF). During spontaneous exploratory learning, higher levels of rCBF compared to cue-instructed learning were observed in motor control regions, including specific subregions of the motor cortex and the striatum, as well as in regions of sensory pathways including olfactory, somatosensory, and visual modalities. In addition, elevated activity was found in limbic areas, including specific subregions of the hippocampal formation, the amygdala, and the insula. The main difference between the two learning paradigms analyzed in this study was the higher rCBF observed in prefrontal cortical regions during cue instructed learning when compared to spontaneous learning. Higher rCBF during cue instructed learning was also observed in the anterior insular cortex and in limbic areas, including the ectorhinal and entorhinal cortexes, subregions of the hippocampus, subnuclei of the amygdala, and the septum. Many of the rCBF changes showed hemispheric lateralization. Taken together, our study is the first to compare partly lateralized brain activity patterns during two different types of learning. PMID- 29340758 TI - Plants eavesdrop on cues produced by snails and induce costly defenses that affect insect herbivores. AB - Although induced defenses are widespread in plants, the degree to which plants respond to herbivore kairomones (incidental chemicals that herbivores produce independent of herbivory), the costs and benefits of responding to cues of herbivory risk, and the ecological consequences of induced defenses remain unclear. We demonstrate that undamaged tomatoes, Solanum lycopersicum, induce defenses in response to a kairomone (locomotion mucus) of snail herbivores (Helix aspersa). Induced defense had significant costs and benefits for plants: plants exposed to snail mucus or a standard defense elicitor (methyl jasmonate, MeJA) exhibited slower growth, but also experienced less herbivory by an insect herbivore (Spodoptera exigua). We also find that kairomones from molluscan herbivores lead to deleterious effects on insect herbivores mediated through changes in plant defense, i.e., mucus-induced defenses of Solanum lycopersicum reduced growth of S. exigua. These results suggest that incidental cues of widespread generalist herbivores might be a mechanism creating variation in plant growth, plant defense, and biotic interactions. PMID- 29340759 TI - Cecum ulcer is a reliable endoscopic finding in cytomegalovirus colitis concomitant with graft-versus-host disease after allogeneic hematopoietic stem cell transplantation. AB - Although graft-versus-host disease (GVHD) is the major complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT), cytomegalovirus (CMV) reactivation also occurs in patients after allo-HSCT and these conditions often clinically overlap. The aim of this study was to determine reliable endoscopic findings of CMV colitis in patients with gastrointestinal graft-versus-host disease (GI-GVHD). Patients after allo-HSCT who were histologically confirmed to have GI-GVHD with or without CMV colitis and patients with an immunosuppressive condition were retrospectively analyzed. We divided the patients into three groups: GI-GVHD with CMV colitis (group A), GI-GVHD without CMV colitis (group B), and CMV colitis without undergoing allo-HSCT (group C). From medical records, the involved colorectal areas and endoscopic findings according to the groups were compared. A total of 70 patients were divided into three groups (group A: n = 19, group B: n = 28, group C: n = 23). Mucosal injuries in groups A and C frequently occurred in the cecum including ileocecal valves. On the other hand, there were no abnormal lesions on ileocecal valves in group B. Furthermore, ulcer lesions were more frequently observed in groups A and C than in group B (p < 0.001). The sensitivity and specificity of mucosal injuries in the cecum for prediction of CMV colitis were 89.5 and 76.5%, respectively, and mucosal injuries in the cecum were more reliable findings than CMV antigenemia. Ulcer lesions in the cecum are reliable endoscopic findings for CMV colitis in patients with GI GVHD after allo-HSCT. PMID- 29340760 TI - Infections associated with ruxolitinib: study in the French Pharmacovigilance database. PMID- 29340761 TI - Long-term efficacy and toxicity of rituximab plus fludarabine and mitoxantrone (R FM) for gastric marginal zone lymphoma: a single-center experience and literature review. AB - There is no consensus about the best treatment option for patients with HP negative gastric MALT lymphomas or persistent disease after HP eradication.We have investigated fludarabine and mitoxantrone with rituximab (R-FM) as first line treatment. A cohort of 13 patients was analyzed. Induction treatment consisted of fludarabine (25 mg/m2 i.v. on days 2 to 4), mitoxantrone (10 mg/m2 i.v. on day 2), and rituximab (375 mg/m2 i.v. on day 1), for up to six cycles every 28 days. All patients achieved a complete remission, a median of four cycles was given. Treatment-related toxicities were mainly hematologic, with grade 3-4 neutropenia observed in 11/13 patients (84.6%). One patient had grade 3 febrile neutropenia, two patients developed prolonged pancytopenia (15%), and one patient experienced CMV reactivation at 2 months. After a median follow-up of 84 months, 1/13 had disease relapse and received total gastrectomy; estimated 10 year progression-free survival and overall survival were 92.4 and 100%, respectively. Our study suggests R-FM regimen has a high long-term efficacy for untreated HP-negative gastric MALT lymphoma patients and HP-positive patients who failed HP eradication. The elevated incidence of grade 3-4 hematological toxicity, yet manageable, makes this treatment less safe compared to rituximab in combination with chlorambucil or bendamustine. PMID- 29340762 TI - The role of endoscopy in the treatment of hydrocephalus associated with aneurysmal malformation of the vein of Galen. PMID- 29340763 TI - The retinal projection to the nucleus lentiformis mesencephali in zebra finch (Taeniopygia guttata) and Anna's hummingbird (Calypte anna). AB - In birds, the nucleus of the basal optic root (nBOR) and the nucleus lentiformis mesencephali (LM) are retinal recipient nuclei involved in the analysis of optic flow and the generation of the optokinetic response. In both pigeons and chickens, retinal inputs to the nBOR arise from displaced ganglion cells (DGCs), which are found at the margin of the inner nuclear and inner plexiform layers. The LM receives afferents from retinal ganglion cells, but whether DGCs also project to LM is a matter of debate. Previous work in chickens had concluded that DGCs do not project to LM, but a recent study in pigeons found that both retinal ganglion cells and DGCs project to LM. These findings leave open the question of whether there are species differences with respect to the DGC projection to LM. In the present study, we made small injections of retrograde tracer into the LM in a zebra finch and an Anna's hummingbird. In both cases, retrogradely labeled retinal ganglion cells and DGCs were observed. These results suggest that a retinal input to the LM arising from DGCs is characteristic of most, if not all, birds. PMID- 29340764 TI - Correction to: Population data of 21 autosomal STR loci in the Hausa, Igbo and Yoruba people of Nigeria. AB - In the original paper author Alani Sulaimon Akanmu was erroneously omitted from the author list. Prof. Akanmu has now been added as 4th author. Prof. Akanmu acted as an academic supervisor of the study and additionally contributed to the publication by reading, commenting and editing the manuscript. PMID- 29340765 TI - Orotracheal tube as a risk factor for lower respiratory tract infection: preliminary data from a randomised trial. AB - PURPOSE: The aim of the study was to investigate whether polyurethane (PU) endotracheal tubes, continuous measurements of cuff pressure and aspiration of the subglottic space as a bundle of parameters could reduce patients' risk for developing ventilator associated pneumonia (VAP). METHODS: Two groups of patients that differed only in terms of endotracheal tubes and intubation intervention were compared. Group A was ventilated using PU tubes a with conical cuff; they also had continuous cuff pressure measurement and continuous subglottic aspiration. Group B was ventilated using PVC tubes with a cylindrical cuff; the patients underwent intermittent cuff pressure measurement and intermittent subglottic aspiration. RESULTS: Seven patients in group A (13.2%) and 18 in group B (36.0%) out of 103 were diagnosed with VAP. VAP patients were in general older, stayed longer in the ICU and were ventilated significantly longer compared with the patients with no VAP. Eight more patients in group B died compared with group A. Moreover, subjects in group A survived longer. Patient age, hours on mechanical ventilation, and days on an ICU were all positively associated with the occurrence of VAP. CONCLUSIONS: Prevention parameters in ventilation (PU cuff, conical cuff, continuous subglottic drainage and continuous cuff pressure measurement) could prevent the incidence of VAP in ICU patients. PMID- 29340766 TI - Wanted: a better cut-off value for the Epworth Sleepiness Scale. AB - BACKGROUND: Excessive daytime sleepiness (EDS) is the main complaint in many neurological sleep disorders, such as idiopathic hypersomnia, narcolepsy, or obstructive sleep apnea/hypopnea syndrome (OSAS). The validity of the Epworth Sleepiness Scale (ESS) as a screening tool for EDS remains controversial. We therefore investigated (1) the interrelation of the ESS total score and the mean sleep latency (MSL) during the multiple sleep latency test (MSLT) and (2) the diagnostic accuracy of the ESS total score to detect EDS in patients with the chief complaint of subjective EDS. METHODS: A total of 94 patients (48 males) with subjective EDS were included in this study. Regression analyses and ROC curve analyses were carried out to assess the predictive value of the ESS score for MSL. RESULTS: The ESS score significantly predicted a shortened MSL (p = 0.01, beta = -0.29). After dichotomizing into two groups, the ESS score predicted MSL only in patients with hypersomnia or narcolepsy (p = 0.01, beta = -0.33), but not in patients with other clinical diagnoses (e. g. OSAS; p = 0.36, beta = 0.15). The ROC curve analyses indicated an optimal ESS cut-off value of 16 with a sensitivity of 70%; however, specificity remained unsatisfactory (55.6%). CONCLUSIONS: Our results suggest that the predictive value of the ESS score in patients with subjective EDS is low and patient subgroup-specific (superior in hypersomnia/narcolepsy vs. other diagnoses) and that the commonly used cut-off of 11 points may be insufficient for clinical practice. PMID- 29340767 TI - Analysis of prognostic factors after resection of solitary liver metastasis in colorectal cancer: a 22-year bicentre study. AB - PURPOSE: The investigation of the predictors of outcome after hepatic resection for solitary colorectal liver metastasis. METHODS: We recruited 350 patients with solitary colorectal liver metastasis at the University Hospitals of Jena and Magdeburg, who underwent curative liver resection between 1993 and 2014. All patients had follow-up until death or till summer 2016. RESULTS: The follow-up data concern 96.6% of observed patients. The 5- and 10-year overall survival rates were 47 and 28%, respectively. The 5- and 10-year disease-free survival rates were 30 and 20%, respectively. The analysis of the prognostic factors revealed that the pT category of primary tumour, size and grade of the metastasis and extension of the liver resection had no statistically significant impact on survival and recurrence rates. In multivariate analysis, age, status of lymph node metastasis at the primary tumour, location of primary tumour, time of appearance of the metastasis, the use of preoperative chemotherapy and the presence of extrahepatic tumour proved to be independent statistically significant predictors for the prognosis. Moreover, patients with rectal cancer had a lower intrahepatic recurrence rate, but a higher extrahepatic recurrence rate. CONCLUSION: The long-term follow-up of patients with R0-resected liver metastasis is multifactorially influenced. Age and comorbidity have a role only in the overall survival. More than three lymph node metastasis reduced both the overall and disease-free survival. Extrahepatic tumour had a negative influence on the extrahepatic recurrence and on the overall survival. Neither overall survival nor recurrence rates was improved using neoadjuvant chemotherapy. PMID- 29340770 TI - [A fresh look at the German Survey on Aging]. PMID- 29340768 TI - The comparison of clinical outcomes in patients with acute myocardial infarction and advanced chronic kidney disease on chronic hemodialysis versus off hemodialysis. AB - Acute myocardial infarction (AMI) is more frequently observed in patients with chronic kidney disease (CKD) than in patients without CKD. Initial treatment strategy for AMI includes primary percutaneous coronary intervention (PCI), which requires substantial amount of contrast media. We hypothesized that the clinical outcomes are comparable or worse in patients with AMI and advanced CKD off chronic hemodialysis as compared to patients with AMI and advanced CKD on chronic hemodialysis. The purpose of this study was to compare the clinical outcomes of patients with AMI and advanced CKD on hemodialysis versus off hemodialysis. A total of 148 patients with estimated glomerular filtration rate < 30 ml/min/1.73 m2 on admission were included and were divided into the HD group (n = 68) and non HD group (n = 80). The length of hospitalization was significantly less in the HD group (15.7 +/- 14.8 days) than in the non-HD group (22.4 +/- 21.3 days) (P = 0.01). In-hospital death was significantly less in the HD group (10.3%) than in the non-HD group (25.0%) (P = 0.02). While the non-HD group was not significantly associated with in-hospital death after controlling clinical covariates, the non HD group (odd ratio 2.89, 95% confidence interval 1.03-8.12, P = 0.04) was significantly associated with long hospitalization even after controlling clinical covariates. In conclusion, as compared to advanced CKD on chronic hemodialysis, advanced CKD off hemodialysis had higher morbidity and mortality in patients with AMI. Advanced CKD off hemodialysis was closely associated with long hospitalization even after controlling clinical factors. PMID- 29340772 TI - The influence of passionate love on self-other discrimination during joint action. AB - Prior research on romantic relationships suggests that being in love involves a blurring of self-other cognitive boundaries. However, this research has focused so far on conceptual self-representation, related to the individual's traits or interests. The present study tested the hypothesis that passionate love involves a reduced discrimination between the self and the romantic partner at a bodily level, as indexed by an increased Joint Simon effect (JSE), and we further examined whether this self-other discrimination correlated with the passion felt for the partner. As predicted, we found an increased JSE when participants performed the Joint Simon Task with their romantic partner compared with a friend of the opposite sex. Providing support for the self-expansion model of love (Aron and Aron in Pers Relatsh 3(1):45-58, 1996), this result indicates that romantic relationships blur the boundaries between the self and the romantic partner at a bodily level. Furthermore, the strength of romantic feelings was positively correlated with the magnitude of the JSE when sharing the task with the romantic partner. PMID- 29340771 TI - Predictive factors for pharyngocutaneous fistulization after total laryngectomy: a Dutch Head and Neck Society audit. AB - BACKGROUND: Incidences of pharyngocutaneous fistulization (PCF) after total laryngectomy (TL) reported in the literature vary widely, ranging from 2.6 to 65.5%. Comparison between different centers might identify risk factors, but also might enable improvements in quality of care. To enable this on a national level, an audit in the 8 principle Dutch Head and Neck Centers (DHNC) was initiated. METHODS: A retrospective chart review of all 324 patients undergoing laryngectomy in a 2-year (2012 and 2013) period was performed. Overall PCF%, PCF% per center and factors predictive for PCF were identified. Furthermore, a prognostic model predicting the PCF% per center was developed. To provide additional data, a survey among the head and neck surgeons of the participating centers was carried out. RESULTS: Overall PCF% was 25.9. The multivariable prediction model revealed that previous treatment with (chemo)radiotherapy in combination with a long interval between primary treatment and TL, previous tracheotomy, near total pharyngectomy, neck dissection, and BMI < 18 were the best predictors for PCF. Early oral intake did not influence PCF rate. PCF% varied quite widely between centers, but for a large extend this could be explained with the prediction model. PCF performance rate (difference between the PCF% and the predicted PCF%) per DHNC, though, shows that not all differences are explained by factors established in the prediction model. However, these factors explain enough of the differences that, compensating for these factors, hospital is no longer independently predictive for PCF. CONCLUSIONS: This nationwide audit has provided valid comparative PCF data confirming the known risk factors from the literature which are important for counseling on PCF risks. Data show that variations in PCF% in the DHNCs (in part) are explainable by the variations in these predictive factors. Since elective neck dissection is a major risk factor for PCF, it only should be performed on well funded indication. PMID- 29340773 TI - Feature codes in implicit sequence learning: perceived stimulus locations transfer to motor response locations. AB - An important question in implicit sequence learning research is how the learned information is represented. In earlier models, the representations underlying implicit learning were viewed as being either purely motor or perceptual. These different conceptions were later integrated by multidimensional models such as the Dual System Model of Keele et al. (Psychol Rev 110(2):316-339, 2003). According to this model, different types of sequential information can be learned in parallel, as long as each sequence comprised only one single dimension (e.g., shapes, colors, or response locations). The term dimension, though, is underspecified as it remains an open question whether the involved learning modules are restricted to motor or to perceptual information. This study aims to show that the modules of the implicit learning system are not specific to motor or perceptual processing. Rather, each module processes an abstract feature code which represents both response- and perception-related information. In two experiments, we showed that perceiving a stimulus-location sequence transferred to a motor response-location sequence. This result shows that the mere perception of a sequential feature automatically leads to an activation of the respective motor feature, supporting the notion of abstract feature codes being the basic modules of the implicit learning system. This result could only be obtained, though, when the task instructions emphasized the encoding of the stimulus locations as opposed to an encoding of the color features. This limitation will be discussed taking into account the importance of the instructed task set. PMID- 29340774 TI - 'Exercise to me is a scary word': perceptions of fatigue, sleep dysfunction, and exercise in people with fibromyalgia syndrome-a focus group study. AB - Fibromyalgia syndrome (FMS) is a common and complex chronic pain condition. Exercise is recommended in the management of the FMS; however, people with FMS often find exercise exacerbates their condition and causes overwhelming fatigue. The objective of this study was to explore the perceptions of fatigue and sleep dysfunction, and exercise in people with FMS. Three, 60-90 min focus groups were conducted with people with FMS (n = 14). Participants were recruited from patient support groups who had experienced therapeutic exercise in the management of their condition. Focus groups were video and audio recorded and transcriptions analysed for thematic content by three independent evaluators. Fatigue, sleep dysfunction, and pain were universally reported by participants. The over-arching theme to emerge was a lack of understanding of the condition by others. A huge sense of loss was a major sub-theme and participants felt that they had fundamentally changed since the onset of FMS. Participants reported that they were unable to carry out their normal activities, including physical activity and exercise. The invisibility of FMS was associated with the lack of understanding by others, the sense of loss, and the impact of FMS. People with FMS perceive that there is a lack of understanding of the condition among health care professionals and the wider society. Those with FMS expressed a profound sense of loss of their former 'self'; part of this loss was the ability to engage in normal physical activity and exercise. PMID- 29340776 TI - Ectopic Cushing's syndrome secondary to olfactory neuroblastoma. AB - We present the case of a patient with Cushing's syndrome secondary to ectopic ACTH secretion. A MR of the head showed a left-sided nasal mass extending down from the cribriform plate. The patient underwent endoscopic resection with nearly complete removal of the mass. Histological examination showed an ACTH-secreting olfactory neuroblastoma (ONB). The patient's cortisol levels returned to normal range after surgery and have remained normal for over a year. ONB is a rare cause for ectopic ACTH secretion. This case highlights the diagnostic and management difficulties in patients with ectopic ACTH secretion, and provides a brief review of ONB. PMID- 29340775 TI - Global versus local mechanisms of temperature sensing in ion channels. AB - Ion channels turn diverse types of inputs, ranging from neurotransmitters to physical forces, into electrical signals. Channel responses to ligands generally rely on binding to discrete sensor domains that are coupled to the portion of the channel responsible for ion permeation. By contrast, sensing physical cues such as voltage, pressure, and temperature arises from more varied mechanisms. Voltage is commonly sensed by a local, domain-based strategy, whereas the predominant paradigm for pressure sensing employs a global response in channel structure to membrane tension changes. Temperature sensing has been the most challenging response to understand and whether discrete sensor domains exist for pressure and temperature has been the subject of much investigation and debate. Recent exciting advances have uncovered discrete sensor modules for pressure and temperature in force-sensitive and thermal-sensitive ion channels, respectively. In particular, characterization of bacterial voltage-gated sodium channel (BacNaV) thermal responses has identified a coiled-coil thermosensor that controls channel function through a temperature-dependent unfolding event. This coiled-coil thermosensor blueprint recurs in other temperature sensitive ion channels and thermosensitive proteins. Together with the identification of ion channel pressure sensing domains, these examples demonstrate that "local" domain based solutions for sensing force and temperature exist and highlight the diversity of both global and local strategies that channels use to sense physical inputs. The modular nature of these newly discovered physical signal sensors provides opportunities to engineer novel pressure-sensitive and thermosensitive proteins and raises new questions about how such modular sensors may have evolved and empowered ion channel pores with new sensibilities. PMID- 29340777 TI - Answer to the Letter to the Editor of Yi Liu et al. concerning "Spinal movement and dural sac compression during airway management in a cadaveric model with atlanto-occipital instability" by Liao S, Schneider NRE, Weilbacher F et al. (2017) Eur Spine J. doi:10.1007/s00586-017-5416-9. PMID- 29340778 TI - Successful surgery for a neuromuscular scoliosis patient by pulmonary rehabilitation with forced vital capacity below 30. AB - A rare case of a 15-year-old male patient with neuromuscular scoliosis with forced vital capacity (FVC) below 30%, who went through a successful surgery without any pulmonary complications, is reported herein. The patient had obvious asymmetric shoulders and poor exercise tolerance. The Cobb's angle of the main thoracic curve was 62.8 degrees , and FVC in sitting position was 18% of predictive value. After skull traction and pulmonary rehabilitation, the FVC was still below 30%, and he finally went through surgery under this serious condition. By early pulmonary rehabilitation using home ventilator, he successfully recovered without any pulmonary complications. The patient had complete symptom remission and no deterioration of Cobb's angle was found during follow-up. PMID- 29340779 TI - Dose, image quality and spine modeling assessment of biplanar EOS micro-dose radiographs for the follow-up of in-brace adolescent idiopathic scoliosis patients. AB - PURPOSE: The aim of this study was to compare the radiation dose, image quality and 3D spine parameter measurements of EOS low-dose and micro-dose protocols for in-brace adolescent idiopathic scoliosis (AIS) patients. METHODS: We prospectively included 25 consecutive patients (20 females, 5 males) followed for AIS and undergoing brace treatment. The mean age was 12 years (SD 2 years, range 8-15 years). For each patient, in-brace biplanar EOS radiographs were acquired in a standing position using both the conventional low-dose and micro-dose protocols. Dose area product (DAP) was systematically recorded. Diagnostic image quality was qualitatively assessed by two radiologists for visibility of anatomical structures. The reliability of 3D spine modeling between two operators was quantitatively evaluated for the most clinically relevant 3D radiological parameters using intraclass correlation coefficient (ICC). RESULTS: The mean DAP for the posteroanterior and lateral acquisitions was 300 +/- 134 and 433 +/- 181 mGy cm2 for the low-dose radiographs, and 41 +/- 19 and 81 +/- 39 mGy cm2 for micro-dose radiographs. Image quality was lower with the micro-dose protocol. The agreement was "good" to "very good" for all measured clinical parameters when comparing the low-dose and micro-dose protocols (ICC > 0.73). CONCLUSION: The micro-dose protocol substantially reduced the delivered dose (by a factor of 5-7 compared to the low-dose protocol) in braced children with AIS. Although image quality was reduced, the micro-dose protocol proved to be adapted to radiological follow-up, with adequate image quality and reliable clinical measurements. These slides can be retrieved under Electronic Supplementary Material. PMID- 29340780 TI - Health-related quality of life in outpatients with schizophrenia: factors that determine changes over time. AB - PURPOSE: The objective of this study was to analyze the clinical factors associated with changes in HRQoL in outpatients with schizophrenia using both generic and condition-specific HRQoL scales. METHODS: Adult outpatients with schizophrenia at least 18 years of age who did not have an acute psychotic exacerbation in the 3 months prior to baseline were recruited. PANSS dimensions were calculated based on Lindenmayer et al.'s five factors. HRQoL data were assessed by patients using the Schizophrenia Quality of Life Scale (SQLS), the Short Form-36 (SF-36), and the EuroQol-5 Dimension (EQ-5D) questionnaires. RESULTS: Out of the 1345 patients included at baseline, 1196 (89%) were evaluated at 12 months. Regression models showed that the factor most consistently associated with HRQoL at endpoint was change in the PANSS negative symptoms score. A decrease in the PANSS negative symptoms score from baseline to 1 year was associated with a decrease in HRQoL during the same period. There were also significant associations of the change in PANSS excitatory factor with all the HRQoL scales except the SF-36 PCS. Female gender was associated with a decrease in all HRQoL ratings. There was also a relationship between years since onset and HRQoL. The longer the time since illness onset, the larger the decrease in HRQoL. CONCLUSIONS: This study has found that, in outpatients with schizophrenia, changes in negative and excitement symptoms may have a greater an association with HRQoL than changes in positive, cognitive and depressive symptoms. PMID- 29340782 TI - Strigeid parasites of Circus buffoni from Argentina, with the description of a new species of Parastrigea Szidat, 1928. AB - Studying the Helminthological Collection of Museo de La Plata (MLP-He), several specimens of digeneans, recovered parasitizing a long-winged harrier, Circus buffoni (Accipitridae) from Buenos Aires Argentina, were analysed. The morphological and morphometric analysis of these specimens revealed the presence of two strigeid species, one of them new for science. Parastrigea buffoni n. sp. is characterised by a forebody differentiated in a retractile cephalic region with a large opening and a balloon-shaped collar region or collerette, suckers located in cephalic region, holdfast organ with well development dorsal and ventral lips that can emerge through opening, a claviform hindbody, a large copulatory bursa with muscular ring (Ringnapf) and a genital cone well delimited, crossed by a sinuous hermaphroditic duct with internal rugae. The euryxenous parasite, Strigea falconis brasiliana, is briefly described, parasitizing a new host. This is the first record of helminths parasitizing long-winged harrier. PMID- 29340781 TI - Suicidal thoughts and behaviors among college students and same-aged peers: results from the World Health Organization World Mental Health Surveys. AB - PURPOSE: The primary aims are to (1) obtain representative prevalence estimates of suicidal thoughts and behaviors (STB) among college students worldwide and (2) investigate whether STB is related to matriculation to and attrition from college. METHODS: Data from the WHO World Mental Health Surveys were analyzed, which include face-to-face interviews with 5750 young adults aged 18-22 spanning 21 countries (weighted mean response rate = 71.4%). Standardized STB prevalence estimates were calculated for four well-defined groups of same-aged peers: college students, college attriters (i.e., dropouts), secondary school graduates who never entered college, and secondary school non-graduates. Logistic regression assessed the association between STB and college entrance as well as attrition from college. RESULTS: Twelve-month STB in college students was 1.9%, a rate significantly lower than same-aged peers not in college (3.4%; OR 0.5; p < 0.01). Lifetime prevalence of STB with onset prior to age 18 among college entrants (i.e., college students or attriters) was 7.2%, a rate significantly lower than among non-college attenders (i.e., secondary school graduates or non graduates; 8.2%; OR 0.7; p = 0.03). Pre-matriculation onset STB (but not post matriculation onset STB) increased the odds of college attrition (OR 1.7; p < 0.01). CONCLUSION: STB with onset prior to age 18 is associated with reduced likelihood of college entrance as well as greater attrition from college. Future prospective research should investigate the causality of these associations and determine whether targeting onset and persistence of childhood-adolescent onset STB leads to improved educational attainment. PMID- 29340783 TI - Identification of bat trypanosomes from Minas Gerais state, Brazil, based on 18S rDNA and Cathepsin-L-like targets. AB - Several bat species can be infected by trypanosomes, but there is not much information about which of these parasites infect bats from Triangulo Mineiro and Alto Paranaiba, Minas Gerais state, Brazil, a formerly endemic region for Trypanosoma cruzi, the causative agent of Chagas disease. The aim of this study was to describe, characterize, and identify the presence of trypanosomes in bats. The captured bats (448) belong to four families and to 19 different species. Of those, 37 bats were found to be positive for trypanosomes by microhematocrit, (infection rate 8.3%) and 27 were positive after hemoculture analysis. Initially, the isolates were identified by PCR (18S rDNA, 24Salpha rDNA, spliced leader, COII RFLP-PCR) using primers originally designed for T. cruzi. PCRs (18S rDNA, 24Salpha rDNA) showed compatible bands for TcI, whereas COII RFLP-PCR showed a similar pattern associated to TcII. However, there was no DNA amplification using spliced leader as a target, revealing a discrepancy between the results. Phylogenetic analysis of Cathepsin L-like and 18S rDNA sequences proved that 15 of the isolates corresponded to Trypanosoma cruzi marinkellei and one to Trypanosoma dionisii. These results revealed that the diversity of trypanosome species in a region considered endemic for Chagas disease is greater than previous descriptions. All this can confirm the necessity of using DNA sequencing approaches in order to determinate trypanosomes species isolated from bats. PMID- 29340784 TI - A new flesh fly species (Diptera: Sarcophagidae) parasitic on leptodactylid frogs. AB - Here we describe a new species of sarcophagid fly reared from larvae found feeding on three species of leptodactylid frogs collected in subtropical Corrientes Province in northeastern Argentina. Our species description is based on adult male and female external morphology and genitalia. Adult males and females of the new species were associated with certainty because all specimens studied were reared from single clutches of larvae on each of three infested frogs. Thus, adult males and females reared from each clutch were siblings that emerged almost simultaneously. The paper provides line drawings, high-resolution photographs, and SEM images to aid in identifying Lepidodexia (Notochaeta) adelina sp. nov. and to distinguish the new species from its closely related congeners. We include brief notes on the host species and on larval feeding behavior of L. (N.) adelina. This is the first and only species in the genus Lepidodexia reported to parasitize leptodactylid frogs. Further, our observations reported here are the first to fully document a completed life cycle by sarcophagid fly larvae on three different species of leptodactylid frogs and the only well-documented case of myiasis of an amphibian in Argentina. PMID- 29340785 TI - Nitric oxide acts downstream of abscisic acid in molybdenum-induced oxidative tolerance in wheat. AB - KEY MESSAGE: Our study first reveals that Mo mediates oxidative tolerance through ABA signaling. Moreover, NO acts downstream of ABA signaling in Mo-induced oxidative tolerance in wheat under drought stress. Nitric oxide (NO) is related to the improvement of molybdenum (Mo)-induced oxidative tolerance. While the function of Mo in abscisic acid (ABA) synthesis and in mediating oxidative tolerance by the interaction of ABA and NO remain to be studied. The -Mo and +Mo treatment-cultivated wheat was separated and subsequently was pretreated with AO inhibitor, ABA synthesis inhibitor, exogenous ABA, NO scavenger, NO donor or their combinations under polyethylene glycol 6000 (PEG)-stimulated drought stress (PSD). The AO activity and ABA content were increased by Mo in wheat under PSD, however, AO inhibitor decreased AO activity, correspondingly reduced ABA accumulation, suggesting that AO involves in the regulation of Mo-induced ABA synthesis. Mo enhanced activities and expressions of antioxidant enzyme, while these effects of Mo were reversed by AO inhibitor and ABA synthesis inhibitor due to the decrease of ABA content, but regained by exogenous ABA, indicating that Mo induces oxidative tolerance through ABA. Moreover, NO scavenger inhibited activities of antioxidant enzyme caused by Mo and exogenous ABA, but the inhibitions were eliminated by NO donor, indicating that NO is involved in ABA pathway in the regulation of Mo-induced oxidative tolerance in wheat under PSD. Finally, we proposed a scheme for the mechanism of Mo-induced oxidative tolerance. PMID- 29340786 TI - In silico identification and experimental validation of amino acid motifs required for the Rho-of-plants GTPase-mediated activation of receptor-like cytoplasmic kinases. AB - KEY MESSAGE: Several amino acid motifs required for Rop-dependent activity were found to form a common surface on RLCKVI_A kinases. This indicates a unique mechanism for Rho-type GTPase-mediated kinase activation in plants. Rho-of-plants (Rop) G-proteins are implicated in the regulation of various cellular processes, including cell growth, cell polarity, hormonal and pathogen responses. Our knowledge about the signalling pathways downstream of Rops is continuously increasing. However, there are still substantial gaps in this knowledge. One reason for this is that these pathways are considerably different from those described for yeast and/or animal Rho-type GTPases. Among others, plants lack all Rho/Rac/Cdc42-activated kinase families. Only a small group of plant-specific receptor-like cytoplasmic kinases (RLCK VI_A) has been shown to exhibit Rop binding-dependent in vitro activity. These kinases do not carry any known GTPase binding motifs. Based on the sequence comparison of the Rop-activated RLCK VI_A and the closely related but constitutively active RLCK VI_B kinases, several distinguishing amino acid residues/motifs were identified. All but one of these were found to be required for the Rop-mediated regulation of the in vitro activity of two RLCK VI_A kinases. Structural modelling indicated that these motifs might form a common Rop-binding surface. Based on in silico data mining, kinases that have the identified Rop-binding motifs are present in Embryophyta but not in unicellular green algae. It can, therefore, be supposed that Rops recruited these plant-specific kinases for signalling at an early stage of land plant evolution. PMID- 29340788 TI - The impact of advanced maternal age on the outcome of twin pregnancies. AB - PURPOSE: To assess the effect of advanced maternal age on the obstetrics and neonatal outcome of twin pregnancies. METHODS: A retrospective study of 716 dichorionic-diamniotic twin pregnancies delivered at our institute. The study population was divided into two groups: women aged 35-39 years (group A, n = 142) and women aged >= 40 years (Group B, n = 48). The control group consisted of women younger than 35 years (group C, n = 516). RESULTS: The rate of cesarean section (CS) was significantly higher among women older than 35 years compared to the control group (A 76.8% and B 87.5% vs C 65.7%, P = 0.001). Women older than 35 years were also at higher risk for developing hypertensive disorders (A 7.0%, B 14.6%, vs C 5.4%, P = 0.04). On multivariate regression analysis, maternal age was found to be independently associated with a higher rate of CS (odds ratio vs reference group C: group A 1.6, 95% CI 1.08-2.6; group B 3.2, 95% CI 1.3-7.8). There was no difference between the groups in the rate of neonatal complications. CONCLUSION: Women with twin pregnancy, older than 35 years, have a significantly higher rate of CS and hypertensive disorder. This rate increases with maternal age, with no increased rate of neonatal complications. PMID- 29340787 TI - A profilin gene promoter from switchgrass (Panicum virgatum L.) directs strong and specific transgene expression to vascular bundles in rice. AB - KEY MESSAGE: A switchgrass vascular tissue-specific promoter (PvPfn2) and its 5' end serial deletions drive high levels of vascular bundle transgene expression in transgenic rice. Constitutive promoters are widely used for crop genetic engineering, which can result in multiple off-target effects, including suboptimal growth and epigenetic gene silencing. These problems can be potentially avoided using tissue-specific promoters for targeted transgene expression. One particularly urgent need for targeted cell wall modification in bioenergy crops, such as switchgrass (Panicum virgatum L.), is the development of vasculature-active promoters to express cell wall-affective genes only in the specific tissues, i.e., xylem and phloem. From a switchgrass expression atlas we identified promoter sequence upstream of a vasculature-specific switchgrass profilin gene (PvPfn2), especially in roots, nodes and inflorescences. When the putative full-length (1715 bp) and 5'-end serial deletions of the PvPfn2 promoter (shortest was 413 bp) were used to drive the GUS reporter expression in stably transformed rice (Oryza sativa L.), strong vasculature-specificity was observed in various tissues including leaves, leaf sheaths, stems, and flowers. The promoters were active in both phloem and xylem. It is interesting to note that the promoter was active in many more tissues in the heterologous rice system than in switchgrass. Surprisingly, all four 5'-end promoter deletions, including the shortest fragment, had the same expression patterns as the full-length promoter and with no attenuation in GUS expression in rice. These results indicated that the PvPfn2 promoter variants are new tools to direct transgene expression specifically to vascular tissues in monocots. Of special interest is the very compact version of the promoter, which could be of use for vasculature-specific genetic engineering in monocots. PMID- 29340789 TI - Fully sialylated alpha-chain of complement 4-binding protein (A2160): a novel prognostic marker for epithelial ovarian carcinoma. AB - PURPOSE: Fully sialylated alpha-chain of complement 4-binding protein (A2160) is a member of the glycoprotein family and has recently been identified as a diagnostic biomarker for epithelial ovarian cancer. This study examined the utility of A2160 as a prognostic biomarker for this disease. METHODS: This is a retrospective analysis of prospectively collected plasma samples from 93 women with stage I-IV epithelial ovarian cancer who underwent primary cytoreductive surgery between 2009 and 2014. Pretreatment A2160 levels were correlated to clinico-pathological factors and survival outcome. RESULTS: Women with advanced stage disease had significantly higher 2160 levels compared to those with early stage disease (stage I-II versus III-IV, median 2.17-2.70 versus 5.31-8.70 U/mL, P < 0.01). Women with high-grade serous ovarian carcinoma had higher A2160 levels compared to other histologies (6.60 versus 3.01 U/mL, P = 0.05). Women who had suboptimal cytoreduction had significantly higher A2160 levels than those who achieved optimal/complete cytoreduction (7.02 versus 2.30-3.17 U/mL, P < 0.01). On univariable analysis, higher A2160 levels were significantly associated with decreased progression-free survival (64-100 versus 1-33%ile, 5-year rates 53.4 versus 78.9%, P = 0.029). After controlling for age, CA-125 level, cytoreductive status, histology, and stage, higher A2160 levels remained an independent prognostic factor for decreased progression-free survival (adjusted-hazard ratio (HR) 2.48, 95% confidence interval (CI) 1.01-6.11, P = 0.049). Similarly, higher A2160 levels were independently associated with decreased cause-specific survival on multivariable analysis (adjusted-HR 3.07, 95% CI 1.19-7.93, P = 0.021). CONCLUSION: Our study suggests that A2160 may be a useful prognostic biomarker for epithelial ovarian cancer, and higher pretreatment levels of A2160 predicts poor survival outcome. PMID- 29340790 TI - An automated framework for QSAR model building. AB - BACKGROUND: In-silico quantitative structure-activity relationship (QSAR) models based tools are widely used to screen huge databases of compounds in order to determine the biological properties of chemical molecules based on their chemical structure. With the passage of time, the exponentially growing amount of synthesized and known chemicals data demands computationally efficient automated QSAR modeling tools, available to researchers that may lack extensive knowledge of machine learning modeling. Thus, a fully automated and advanced modeling platform can be an important addition to the QSAR community. RESULTS: In the presented workflow the process from data preparation to model building and validation has been completely automated. The most critical modeling tasks (data curation, data set characteristics evaluation, variable selection and validation) that largely influence the performance of QSAR models were focused. It is also included the ability to quickly evaluate the feasibility of a given data set to be modeled. The developed framework is tested on data sets of thirty different problems. The best-optimized feature selection methodology in the developed workflow is able to remove 62-99% of all redundant data. On average, about 19% of the prediction error was reduced by using feature selection producing an increase of 49% in the percentage of variance explained (PVE) compared to models without feature selection. Selecting only the models with a modelability score above 0.6, average PVE scores were 0.71. A strong correlation was verified between the modelability scores and the PVE of the models produced with variable selection. CONCLUSIONS: We developed an extendable and highly customizable fully automated QSAR modeling framework. This designed workflow does not require any advanced parameterization nor depends on users decisions or expertise in machine learning/programming. With just a given target or problem, the workflow follows an unbiased standard protocol to develop reliable QSAR models by directly accessing online manually curated databases or by using private data sets. The other distinctive features of the workflow include prior estimation of data modelability to avoid time-consuming modeling trials for non modelable data sets, an efficient variable selection procedure and the facility of output availability at each modeling task for the diverse application and reproduction of historical predictions. The results reached on a selection of thirty QSAR problems suggest that the approach is capable of building reliable models even for challenging problems. PMID- 29340791 TI - Treatment of disabling headache with greater occipital nerve injections in a large population of childhood and adolescent patients: a service evaluation. AB - BACKGROUND: Pediatric headache disorders can be extremely disabling, with marked reduction in the quality of life of children and their carers. Evidenced-based options for the treatment of primary headache disorders with preventive medication is limited and clinical outcomes are often unsatisfactory. Greater occipital nerve injections represent a rapid and well-tolerated therapeutic option, which is widely used in clinical practice in adults, and has previously shown a good outcome in a pediatric population. METHODS: This service evaluation reviewed greater occipital nerve injections performed unilaterally with 30 mg 1% lidocaine and 40 mg methylprednisolone, to treat disabling headache disorders in children and adolescents. RESULTS: We analyzed a total of 159 patients who received 380 injections. Of the population, 79% had chronic migraine, 14% new daily persistent headache, 4% a trigeminal autonomic cephalalgia, 3% secondary headache and one patient had chronic tension-type headache. An improvement after injection was seen in 66% (n = 105) of subjects, lasting on average 9 +/- 4 weeks. Improvement was seen in 68% of patients with chronic migraine, 67% with a trigeminal autonomic cephalalgia and 59% with new daily persistent headache. Side effects were reported in 8% and were mild and transient. Older age, female gender, chronic migraine, increased number of past preventive use, medication overuse and developing side effects were all associated with an increased likelihood of positive treatment outcome. CONCLUSIONS: This large single centre service evaluation confirms that unilateral injection of the greater occipital nerve is a safe, rapid-onset and effective treatment strategy in disabling headache disorders in children, with a range of diagnoses and severity of the condition, and with minimal side effects. PMID- 29340792 TI - Internal jugular vein variability predicts fluid responsiveness in cardiac surgical patients with mechanical ventilation. AB - BACKGROUND: To evaluate the efficacy of using internal jugular vein variability (IJVV) as an index of fluid responsiveness in mechanically ventilated patients after cardiac surgery. METHODS: Seventy patients were assessed after cardiac surgery. Hemodynamic data coupled with ultrasound evaluation of IJVV and inferior vena cava variability (IVCV) were collected and calculated at baseline, after a passive leg raising (PLR) test and after a 500-ml fluid challenge. Patients were divided into volume responders (increase in stroke volume >= 15%) and non responders (increase in stroke volume < 15%). We compared the differences in measured variables between responders and non-responders and tested the ability of the indices to predict fluid responsiveness. RESULTS: Thirty-five (50%) patients were fluid responders. Responders presented higher IJVV, IVCV and stroke volume variation (SVV) compared with non-responders at baseline (P < 0.05). The relationship between IJVV and SVV was moderately correlated (r = 0.51, P < 0.01). The areas under the receiver operating characteristic (ROC) curves for predicting fluid responsiveness were 0.88 (CI 0.78-0.94) for IJVV compared with 0.83 (CI 0.72-0.91), 0.97 (CI 0.89-0.99), 0.91 (CI 0.82-0.97) for IVCV, SVV, and the increase in stroke volume in response to a PLR test, respectively. CONCLUSIONS: Ultrasound-derived IJVV is an accurate, easily acquired noninvasive parameter of fluid responsiveness in mechanically ventilated postoperative cardiac surgery patients, with a performance similar to that of IVCV. PMID- 29340793 TI - Neuroimaging Findings in Patients with Medication Overuse Headache. AB - Medication overuse headache (MOH) is a secondary headache syndrome defined as the deterioration of the headache associated with the overuse of analgesics. The prevalence of MOH is 1-2% in the general population and even up to 50% in special clinics. Overuse of abortive medications is highly associated with chronic daily headaches and also a known risk factor for headache evolution. Possible mechanisms include neural plasticity changes such as sensitization and defective endogenous pain inhibition. Psychological studies have suggested dependence, even addiction, in patients with MOH. Neuroimaging studies have provided valuable information concerning MOH pathophysiology. Magnetic resonance imaging analyzed by voxel-based morphometry showed gray matter volume changes in brain areas participating the pain modulations. Changes of brain function at similar areas have been revealed by positron emission tomography and functional magnetic resonance imaging studies. Many of these changes were correlated with either headache and/or analgesics parameters such as frequency and duration. These changes are typically reversible after successful treatment. Though the cause or consequence debate remains unsettled, we are more in favor of these findings as maladaptive changes to the frequent headaches or medication overuse. Of these brain areas involved in MOH, orbitofrontal cortex is of interest in several ways. In an early positron emission tomography study, the hypometabolism persists after successful treatment which implied a causal role. The following morphological studies showed the orbitofrontal cortex volume could predict treatment responses. Functional magnetic resonance imaging studies, task positive and also resting state ones, also reported changes within the mesocorticolimbic dopamine system, also known as reward system. Important brain areas of this system include ventral tegmental area, striatum, and orbitofrontal cortex. The system plays an important role in decision-making, dependence, and addiction, as implicated in psychological studies of MOH. Further studies on neuromodulation of this system may be considered in the treatment of MOH. PMID- 29340794 TI - A unified description of colloidal thermophoresis. AB - We use the dynamic length and time scale separation in suspensions to formulate a general description of colloidal thermophoresis. Our approach allows an unambiguous definition of separate contributions to the colloidal flux and clarifies the physical mechanisms behind non-equilibrium motion of colloids. In particular, we derive an expression for the interfacial force density that drives single-particle thermophoresis in non-ideal fluids. The issuing relations for the transport coefficients explicitly show that interfacial thermophoresis has a hydrodynamic character that cannot be explained by a purely thermodynamic consideration. Our treatment generalises the results from other existing approaches, giving them a clear interpretation within the framework of non equilibrium thermodynamics. PMID- 29340795 TI - The sesquiterpene botrydial from Botrytis cinerea induces phosphatidic acid production in tomato cell suspensions. AB - MAIN CONCLUSION: The phytotoxin botrydial triggers PA production in tomato cell suspensions via PLD and PLC/DGK activation. PLC/DGK-derived PA is partially required for botrydial-induced ROS generation. Phosphatidic acid (PA) is a phospholipid second messenger involved in the induction of plant defense responses. It is generated via two distinct enzymatic pathways, either via phospholipase D (PLD) or by the sequential action of phospholipase C and diacylglycerol kinase (PLC/DGK). Botrydial is a phytotoxic sesquiterpene generated by the necrotrophic fungus Botrytis cinerea that induces diverse plant defense responses, such as the production of reactive oxygen species (ROS). Here, we analyzed PA and ROS production and their interplay upon botrydial treatments, employing tomato (Solanum lycopersicum) cell suspensions as a model system. Botrydial induces PA production within minutes via PLD and PLC/DGK. Either inhibition of PLC or DGK diminishes ROS generation triggered by botrydial. This indicates that PLC/DGK is upstream of ROS production. In tomato, PLC is encoded by a multigene family constituted by SlPLC1-SlPLC6 and the pseudogene SlPLC7. We have shown that SlPLC2-silenced plants have reduced susceptibility to B. cinerea. In this work, we studied the role of SlPLC2 on botrydial-induced PA production by silencing the expression of SlPLC2 via a specific artificial microRNA. Upon botrydial treatments, SlPLC2-silenced-cell suspensions produce PA levels similar to wild-type cells. It can be concluded that PA is a novel component of the plant responses triggered by botrydial. PMID- 29340797 TI - Transcranial Doppler ultrasound in the ICU: it is not all sunshine and rainbows. PMID- 29340796 TI - The complete plastome of macaw palm [Acrocomia aculeata (Jacq.) Lodd. ex Mart.] and extensive molecular analyses of the evolution of plastid genes in Arecaceae. AB - MAIN CONCLUSION: The plastome of macaw palm was sequenced allowing analyses of evolution and molecular markers. Additionally, we demonstrated that more than half of plastid protein-coding genes in Arecaceae underwent positive selection. Macaw palm is a native species from tropical and subtropical Americas. It shows high production of oil per hectare reaching up to 70% of oil content in fruits and an interesting plasticity to grow in different ecosystems. Its domestication and breeding are still in the beginning, which makes the development of molecular markers essential to assess natural populations and germplasm collections. Therefore, we sequenced and characterized in detail the plastome of macaw palm. A total of 221 SSR loci were identified in the plastome of macaw palm. Additionally, eight polymorphism hotspots were characterized at level of subfamily and tribe. Moreover, several events of gain and loss of RNA editing sites were found within the subfamily Arecoideae. Aiming to uncover evolutionary events in Arecaceae, we also analyzed extensively the evolution of plastid genes. The analyses show that highly divergent genes seem to evolve in a species specific manner, suggesting that gene degeneration events may be occurring within Arecaceae at the level of genus or species. Unexpectedly, we found that more than half of plastid protein-coding genes are under positive selection, including genes for photosynthesis, gene expression machinery and other essential plastid functions. Furthermore, we performed a phylogenomic analysis using whole plastomes of 40 taxa, representing all subfamilies of Arecaceae, which placed the macaw palm within the tribe Cocoseae. Finally, the data showed here are important for genetic studies in macaw palm and provide new insights into the evolution of plastid genes and environmental adaptation in Arecaceae. PMID- 29340798 TI - Diagnostic implications of a small-voxel reconstruction for loco-regional lymph node characterization in breast cancer patients using FDG-PET/CT. AB - BACKGROUND: We evaluated the diagnostic implications of a small-voxel reconstruction for lymph node characterization in breast cancer patients, using state-of-the-art FDG-PET/CT. We included 69 FDG-PET/CT scans from breast cancer patients. PET data were reconstructed using standard 4 * 4 * 4 mm3 and small 2 * 2 * 2 mm3 voxels. Two hundred thirty loco-regional lymph nodes were included, of which 209 nodes were visualised on PET/CT. All nodes were visually scored as benign or malignant, and SUVmax and TBratio(=SUVmax/SUVbackground) were measured. Final diagnosis was based on histological or imaging information. We determined the accuracy, sensitivity and specificity for both reconstruction methods and calculated optimal cut-off values to distinguish benign from malignant nodes. RESULTS: Sixty-one benign and 169 malignant lymph nodes were included. Visual evaluation accuracy was 73% (sensitivity 67%, specificity 89%) on standard-voxel images and 77% (sensitivity 78%, specificity 74%) on small-voxel images (p = 0.13). Across malignant nodes visualised on PET/CT, the small-voxel score was more often correct compared with the standard-voxel score (89 vs. 76%, p < 0.001). In benign nodes, the standard-voxel score was more often correct (89 vs. 74%, p = 0.04). Quantitative data were based on the 61 benign and 148 malignant lymph nodes visualised on PET/CT. SUVs and TBratio were on average 3.0 and 1.6 times higher in malignant nodes compared to those in benign nodes (p < 0.001), on standard- and small-voxel PET images respectively. Small-voxel PET showed average increases in SUVmax and TBratio of typically 40% over standard-voxel PET. The optimal SUVmax cut-off using standard-voxels was 1.8 (sensitivity 81%, specificity 95%, accuracy 85%) while for small-voxels, the optimal SUVmax cut-off was 2.6 (sensitivity 78%, specificity 98%, accuracy 84%). Differences in accuracy were non-significant. CONCLUSIONS: Small-voxel PET/CT improves the sensitivity of visual lymph node characterization and provides a higher detection rate of malignant lymph nodes. However, small-voxel PET/CT also introduced more false positive results in benign nodes. Across all nodes, differences in accuracy were non-significant. Quantitatively, small-voxel images require higher cut-off values. Readers have to adapt their reference standards. PMID- 29340799 TI - Fully automated life support: an implementation and feasibility pilot study in healthy pigs. AB - BACKGROUND: Automated systems are available in various application areas all over the world for the purpose of reducing workload and increasing safety. However, such support systems that would aid caregivers are still lacking in the medical sector. With respect to workload and safety, especially, the intensive care unit appears to be an important and challenging application field. Whereas many closed loop subsystems for single applications already exist, no comprehensive system covering multiple therapeutic aspects and interactions is available yet. This paper describes a fully closed-loop intensive care therapy and presents a feasibility analysis performed in three healthy pigs over a period of 72 h each to demonstrate the technical and practical implementation of automated intensive care therapy. METHODS: The study was performed in three healthy, female German Landrace pigs under general anesthesia with endotracheal intubation. An arterial and a central venous line were implemented, and a suprapubic urinary catheter was inserted. Electrolytes, glucose levels, acid-base balance, and respiratory management were completely controlled by an automated fuzzy logic system based on individual targets. Fluid management by adaption of the respective infusion rates for the individual parameters was included. RESULTS: During the study, no manual modification of the device settings was allowed or required. Homoeostasis in all animals was kept stable during the entire observation period. All remote controlled parameters were maintained within physiological ranges for most of the time (free arterial calcium 73%, glucose 98%, arterial base excess 89%, and etCO2 98%). Subsystem interaction was analyzed. CONCLUSIONS: In the presented study, we demonstrate the feasibility of a fully closed-loop system, for which we collected high-resolution data on the interaction and response of the different subsystems. Further studies should use big data approaches to analyze and investigate the interactions between the subsystems in more detail. PMID- 29340800 TI - Correction to: Psychiatric comorbidity and intimate partner violence among women who inject drugs in Europe: a cross-sectional study. AB - The original version of this article unfortunately missed the Acknowledgment. PMID- 29340801 TI - Maternal depression trajectories from pregnancy to 3 years postpartum are associated with children's behavior and executive functions at 3 and 6 years. AB - The objective of this study was to investigate how patterns of maternal depressive symptoms from mid-pregnancy to 3 years postpartum are associated with children's behavior at age 3 years and executive functions. Maternal depressive symptoms were measured from mid-pregnancy to 3 years postpartum. Growth mixture modeling was used on standardized maternal depression scores (n = 147) to identify trajectories. Children's behavioral problems and mental health symptomatology (internalizing, externalizing, and attention deficit hyperactivity disorder) were obtained at 3 and 6 years. EFs were assessed by a laboratory-based computerized task and maternal-report at 6 years. Multivariable linear regressions of children's outcomes against maternal depressive symptom trajectories were conducted (n = 103). Three distinct patterns of maternal depressive symptom trajectories were identified: low (n = 105), increasing (n = 27), and decreasing (n = 15). Children of mothers whose depressive symptoms increased reported more problem behaviors at 3 years and poorer EFs at 6 years as assessed by both instruments, but no significant differences in mental health symptomatology at 6 years, relative to those whose mothers had consistently low depressive symptoms. Children whose mothers became less depressed over time had comparable levels of behavioral problems at age 3, executive functions, and internalizing and externalizing scores at age 6; and fewer reported ADHD behaviors at age 6, than those whose mothers remained less depressed over time. If mothers' depressive symptoms improve over the first 3 years postpartum, their children's outlook may be comparable to those whose mothers had consistently low depressive symptoms. PMID- 29340802 TI - Longitudinal trajectories of antidepressant use in pregnancy and the postnatal period. AB - Studies of antidepressant safety in pregnancy typically do not address complex patterns of use throughout pregnancy. We performed longitudinal trajectory modeling to describe patterns of antidepressant use in the first 32 weeks of pregnancy, and test whether these trajectories are associated with a reduction in birth weight or gestational age at delivery. Our study included 166 pregnant women with deliveries between 2011 and 2015 who were prescribed an antidepressant between 91 days prior to last menstrual period and 32 weeks of gestation. From electronic medical records, we estimated average daily dose and cumulative dose per week for the first 32 weeks of gestation and for the first 13 weeks postnatal. We clustered women with similar utilization patterns using k-means longitudinal modeling and assessed the associations between trajectory group and birth weight and gestational age at delivery. We identified four cumulative dose trajectory groups and three average daily dose trajectory groups in each period. Relative to the lowest trajectory group, the highest trajectory group during pregnancy was associated with reduced birth weight in multivariable analysis (average daily highest trajectory vs. lowest trajectory beta - 314.1 g, 95% CI - 613.7, - 15.5) adjusted for depression severity score, maternal age, race, and pregnancy smoking. Trajectory groups were not associated with gestational age at delivery. The highest trajectory group of antidepressant use in pregnancy was associated with a modest reduction in birth weight but not with gestational age at delivery. Longitudinal trajectories allow for a dynamic visualization and quantification of medication use among pregnant women. PMID- 29340803 TI - Robust Exponential Memory in Hopfield Networks. AB - The Hopfield recurrent neural network is a classical auto-associative model of memory, in which collections of symmetrically coupled McCulloch-Pitts binary neurons interact to perform emergent computation. Although previous researchers have explored the potential of this network to solve combinatorial optimization problems or store reoccurring activity patterns as attractors of its deterministic dynamics, a basic open problem is to design a family of Hopfield networks with a number of noise-tolerant memories that grows exponentially with neural population size. Here, we discover such networks by minimizing probability flow, a recently proposed objective for estimating parameters in discrete maximum entropy models. By descending the gradient of the convex probability flow, our networks adapt synaptic weights to achieve robust exponential storage, even when presented with vanishingly small numbers of training patterns. In addition to providing a new set of low-density error-correcting codes that achieve Shannon's noisy channel bound, these networks also efficiently solve a variant of the hidden clique problem in computer science, opening new avenues for real-world applications of computational models originating from biology. PMID- 29340804 TI - Erratum to: Tc-99m methoxyisobutylisonitrile bone marrow imaging for predicting the levels of myeloma cells in bone marrow in multiple myeloma: correlation with CD38/CD138 expressing myeloma cells. PMID- 29340805 TI - Cardiorespiratory Fitness and Cardiovascular Disease Prevention: an Update. AB - PURPOSE OF REVIEW: Cardiovascular diseases account for nearly one third of all deaths globally. Improving exercise capacity and cardiorespiratory fitness (CRF) has been an important target to reduce cardiovascular events. In addition, the American Heart Association defined decreased physical activity as the fourth risk factor for coronary artery disease. Multiple large cohort studies have evaluated the impact of CRF on outcomes. In this review, we will discuss the role of CRF in reducing cardiovascular morbidity and mortality. RECENT FINDINGS: Recent data suggest that CRF has an important role in reducing not only cardiovascular and all-cause mortality, but also incident myocardial infarction, hypertension, diabetes, atrial fibrillation, heart failure, and stroke. Most recently, its role in cancer prevention started to emerge. CRF protective effects have also been seen in patients with prior comorbidities like prior coronary artery disease, heart failure, depression, end-stage renal disease, and stroke. The prognostic value of CRF has been demonstrated in various patient populations and cardiovascular conditions. Higher CRF is associated with improved survival and decreased incidence of cardiovascular diseases (CVD) and other comorbidities including hypertension, diabetes, heart failure, and atrial fibrillation. PMID- 29340806 TI - Distribution of IL28B and IL10 polymorphisms as genetic predictors of treatment response in Pakistani HCV genotype 3 patients. AB - There are over 10 million hepatitis C virus (HCV)-infected patients in Pakistan. For these patients, a combination of interferon with ribavirin is the most economical and easily available treatment. Single-nucleotide polymorphisms in interleukin genes have been reported to be associated with the pathogenesis and clearance of HCV, and sustained virologic response (SVR). An interleukin 28B (IL28B) gene polymorphism has been shown to modify treatment outcomes, but the effects of interleukin 10 (IL10) polymorphisms have not been previously assessed in the Pakistani population. The present study was conducted with 302 subjects categorized into two groups: 100 healthy volunteers (Group I) and 202 patients with chronic HCV (Group II). Patients within Group II were further divided into two subgroups according to therapeutic response: SVR (responders = 132) and NR (non-responders/relapsers = 70). IL28B (rs8099917, rs12979860) and IL10 (rs1800872, rs1800871, rs1800896) gene polymorphisms were studied in all subjects. A significant difference in the distribution of IL28B rs12979860C/T genotypes between the two groups (p<0.05) was observed, while of the three IL10 polymorphisms, a significant difference was only shown for rs1800896 A/G. Haplotype analysis (IL28B and IL10) showed a significant association of TTGTC and TTGTA when comparing the groups. There was a strong association of the favorable alleles rs8099917T and rs12979860C in the SVR group as compared with the NR group (p<0.05), and rs1800896 also showed an association with the SVR group as compared to the NR group (p<0.004). Haplotype analysis showed significant associations when comparing the SVR and NR subgroups, i.e. TCATC (p=0.009), TTGTA (p=0.005), TCATA (p<0.0005), TCACA (p=0.002), GTGCC (p=0.002) and TCGTC (p=0.005). IL28B (rs8099917 and rs12979860) and IL10 (rs1800896) polymorphisms alone, or in combination, are good predictors of therapeutic response in HCV-3a patients. PMID- 29340807 TI - Long-Term Outcome of Infliximab Optimization for Overcoming Immunogenicity in Patients with Inflammatory Bowel Disease. AB - BACKGROUND: Preliminary data suggest that treatment optimization can reverse immunogenicity and regain response in patients with IBD and secondary loss of response (SLR) to anti-TNF therapy due to antidrug antibodies. However, data regarding the long-term outcome of these patients are scarce. AIMS: We aimed to investigate drug retention in IBD patients of whom infliximab was optimized to overcome immunogenicity and variables associated with drug retention. METHODS: This was a retrospective, multicenter study of consecutive IBD patients with antibodies to infliximab (ATI), based on either proactive or reactive therapeutic drug monitoring, who underwent infliximab optimization (increasing dose, shortening interval, adding an immunomodulator, or combination) to overcome immunogenicity from September 2012 to July 2015; they were followed through December 2015. ATI were analyzed using the drug-tolerant Prometheus homogeneous mobility shift assay. Drug retention was defined as no need for drug discontinuation due to SLR or serious adverse event. RESULTS: Our cohort consisted of 22 patients (Crohn's disease, n = 15). At the end of follow-up [median, (IQR): 17.3 (10.5-32.8) months] 77% (15/22) of patients were still on drug. Univariable Cox proportional hazards regression analysis identified first detectable ATI titer as the only variable associated with drug retention (HR: 0.89; 95% CI: 0.82-0.98, p = 0.016). Receiver-operating characteristic analysis identified an ATI titer < 8.8 U/mL associated with drug retention. CONCLUSIONS: In real-life clinical practice, optimization of infliximab therapy can prevent drug discontinuation in approximately 3/4 of patients with ATI, especially in those with low titers. Large prospective studies are needed to confirm these data. PMID- 29340808 TI - Does advancement in stapling technology with triple-row and enhanced staple configurations confer additional safety? A matched comparison of 340 stapled ileocolic anastomoses. AB - BACKGROUND: Over the past few decades, studies have focused on the safety of stapled anastomosis, especially when compared to that of the handsewn technique. However, studies on the improvement of stapling technology are limited. This study aimed to investigate whether linear triple-row staples (tri-staples) had any advantage over double-row staples. METHODS: This is a retrospective review of all cases of functional end-to-end anastomoses with linear staplers performed at two centers between 2005 and 2015. Data were retrieved from a prospectively maintained database. Cases of anastomoses performed with double-row (DS) and triple-row (TS) staples were matched according to propensity scores. The rates of anastomotic leakage, bleeding, reoperation, and 30-day mortality were compared. RESULTS: Functional end-to-end ileocolic anastomoses were performed in 563 consecutive patients during the study period. Double- and triple-row stapling devices were used in 389 and 174 anastomoses, respectively. With propensity score matching, 170 cases were chosen from each group. Both groups showed comparable baseline characteristics. The anastomotic leakage, anastomotic bleeding, and intra-abdominal collection rates were 2.4 and 0% (p = 0.123), 1.2 and 0% (p = 0.499), and 3.5 and 1.2% (p = 0.283) for DS and TS, respectively. The reoperation and 30-day mortality rates were 5.9 and 1.8% (p = 0.048) and 0.6 and 1.2% (p = 1.000) for DS and TS, respectively. The median lengths of stay were 5 and 6 days (p = 0.072) for DS and TS, respectively. CONCLUSION: Anastomoses with triple-row staples tended to have a lower morbidity rate, but a significant advantage over double-row staples was not demonstrated in this study. PMID- 29340809 TI - Randomized controlled study of intraincisional infiltration versus intraperitoneal instillation of standardized dose of ropivacaine 0.2% in post laparoscopic cholecystectomy pain: Do we really need high doses of local anesthetics-time to rethink! AB - BACKGROUND: Earlier studies done to compare the efficacy of use of local anesthetics at intraperitoneal location versus intraincisional use had utilized equal amount of drugs at the two locations, usually 10-20 ml. Using this large amount of drug in the small space of intraincisional location as compared to similar amount of drug in large intraperitoneal space created an inadvertent bias in favor of patients receiving the drug intraincisionally so these patients naturally experienced less pain. AIMS AND OBJECTIVES: To conduct a randomized, triple-blind, placebo-controlled study by standardizing dose of local anesthetic, to compare the effectiveness of intraperitoneal against intraincisional use of ropivacaine 0.2% for post-laparoscopic cholecystectomy pain relief. MATERIALS AND METHODS: 294 patients underwent elective 4-port laparoscopic cholecystectomy. Patients were triple blindly randomized. All patients received ~ 23 ml of solution, of which 20 ml was given intraperitoneally (1 ml/cm; 16 ml along right hemi-dome and 4 ml in gall bladder fossa) and ~ 3 ml intraincisionally (1 ml/cm of length of incision). Solution was either normal saline or drug (0.2% ropivacaine) depending on the group [controls (n = 86), intraperitoneal group (n = 100), and intraincisional group (n = 108)]. 5 different pain scales were used for assessment of overall pain. Pain scores were assessed at 5 points of time. RESULTS: Patients in intraincisional group showed significantly less overall pain and rescue analgesia requirement (p < 0.05). Intraincisional group showed significantly less overall pain (p < 0.05) as compared to intraperitoneal group; however, use of rescue analgesia was comparable in the two groups (p > 0.05); and shoulder pain was significantly less in intraperitoneal group (p < 0.05). CONCLUSION: The intraincisional use of injection ropivacaine at its minimum concentration of 0.2% in minimal doses of 1 ml/cm at the end of procedure provides significantly more post-operative analgesia as compared to intraperitoneal group and controls. However, for controlling shoulder pain, the use of intraperitoneal ropivacaine is desirable. PMID- 29340810 TI - Ureteral stents increase risk of postoperative acute kidney injury following colorectal surgery. AB - BACKGROUND: Ureteral stents are commonly placed before colorectal resection to assist in identification of ureters and prevent injury. Acute kidney injury (AKI) is a common cause of morbidity and increased cost following colorectal surgery. Although previously associated with reflex anuria, prophylactic stents have not been found to increase AKI. We sought to determine the impact of ureteral stents on the incidence of AKI following colorectal surgery. METHODS: All patients undergoing colon or rectal resection at a single institution between 2005 and 2015 were reviewed using American College of Surgeons National Surgical Quality Improvement Program dataset. AKI was defined as a rise in serum creatinine to >= 1.5 times the preoperative value. Univariate and multivariate regression analyses were performed to identify independent predictors of AKI. RESULTS: 2910 patients underwent colorectal resection. Prophylactic ureteral stents were placed in 129 patients (4.6%). Postoperative AKI occurred in 335 (11.5%) patients during their hospitalization. The stent group demonstrated increased AKI incidence (32.6% vs. 10.5%; p < 0.0001) with bilateral having a higher rate than unilateral stents. Hospital costs were higher in the stent group ($23,629 vs. $16,091; p < 0.0001), and patients with bilateral stents had the highest costs. Multivariable logistic regression identified predictors of AKI after colorectal surgery including age, procedure duration, and ureteral stent placement. CONCLUSIONS: Prophylactic ureteral stents independently increased AKI risk when placed prior to colorectal surgery. These data demonstrate increased morbidity and hospital costs related to usage of stents in colorectal surgery, indicating that placement should be limited to patients with highest potential benefit. PMID- 29340811 TI - A word of caution: never use tacks for mesh fixation to the diaphragm! AB - BACKGROUND: The mesh fixation technique used in repair of hiatal hernias and subxiphoid ventral and incisional hernias must meet strenuous requirements. In the literature, there are reports of life-threatening complications with cardiac tamponade and a high mortality rate on using tacks. The continuing practice of tack deployment for mesh fixation to the diaphragm and esophageal hiatus should be critically reviewed. METHODS: In a systematic search of the available literature in May 2017, 23 cases of severe penetrating cardiac complications were identified. The authors became aware of two other cases in which they acted as medical experts. Furthermore, the instructions for use issued by the manufacturers of the tacks were reviewed with regard to their deployment in the diaphragm. RESULTS: Twenty-three of 25 cases (92%) with severe cardiac injuries and subsequent cardiac tamponade were triggered by the use of tacks in the diaphragm. In six cases (24%), these related to ventral and incisional hernias with extension to the subxiphoid area, and in 19 cases (76%) to mesh-augmented hiatoplasty. Twelve of 25 (48%) patients died as a result of pericardial and/or heart muscle injury with cardiac tamponade despite heart surgery intervention. In the tack manufacturers' instructions for use, their deployment in the diaphragm, in particular in the vicinity of the heart, is contraindicated. Likewise, the existing guidelines urgently advise against the use of tacks in the diaphragm, recommending instead alternative fixation techniques. CONCLUSIONS: Tacks should not be used for mesh fixation in the diaphragm above the costal arch. PMID- 29340812 TI - Partial amniotic carbon dioxide insufflation (PACI) during minimally invasive fetoscopic interventions on fetuses with spina bifida aperta. AB - BACKGROUND: Percutaneous partial amniotic carbon dioxide insufflation (PACI) is one of the most important means for improving visualization during minimally invasive fetoscopic surgery of fetal spina bifida. The purpose of the present study was to analyze maternal and fetal safety aspects of PACI in a recent patient cohort and to present management improvements. METHODS: PACI under general materno-fetal anesthesia was performed during 65 interventions for fetoscopic patch coverage of fetal spina bifida aperta between 21 + 0 and 29 + 1 weeks of gestation. Filtered carbon dioxide was insufflated into the amniotic cavity via three percutaneously introduced trocars. Maternal ventilatory and hemodynamic parameters during PACI as well as insufflation pressures, BMI, parity, and placental position were recorded and statistically analyzed in order to detect potential risk groups. RESULTS: Maternal respiration parameters during PACI showed a typical variation over time, which was similar in patients with BMI <= 25 or BMI > 25. The necessary insufflation pressures were significantly higher in nulliparae than multiparae. There was no statistically significant relationship between insufflation pressure and maternal BMI, or between the expired maternal carbon dioxide concentration (etCO2) and the placental position. PACI was safe for all mothers and fetuses. Postnatal demise in one neonate, one fetus, and two infants occurred unrelated to PACI and resulted from trisomy 13, infection, and severe Chiari II malformations, respectively. CONCLUSION: PACI seems safe in order to improve visualization of intraamniotic contents during minimally invasive fetoscopic surgery. Nevertheless, continued assessments of its benefits and risks are important. PMID- 29340813 TI - Impact of laparoscopy in patients aged over 70 years requiring distal pancreatectomy: a French multicentric comparative study. AB - BACKGROUND: Few data are available concerning short-term results of minimally invasive surgery in patients > 70 years old requiring distal pancreatectomy. The aim of this study was to compare short-term results after laparoscopic (LDP) versus open distal pancreatectomy (ODP) in this subgroup of patients. METHODS: All patients > 70 years who underwent distal pancreatectomy in 3 expert centers between 1995 and 2017 were included and data were retrospectively analyzed. Demographic, intraoperative data and postoperative outcomes in LDP and ODP groups were compared. RESULTS: A distal pancreatectomy was performed in 109 elderly patients; LDP group included 53 patients while ODP group included 56. There were 55 (50.5%) males and 54 (49.5%) women with a median age of 75 years (range 70 87). Fifty (45.9%) patients were 70-74, 40 (36.7%) patients were 75-79, and 19 (17.4%) patients were over 80 years. Nine (8.2%) patients required conversion to open surgery. The median operative time was not different between LDP and ODP (204 vs. 220 min, p = 0.62). The intraoperative blood loss was significantly lower in the LDP group (238 +/- 312 vs. 425 +/- 582 ml, p = 0.009) with no difference regarding the intraoperative transfusion rate. 90-day mortality (0 vs. 5%, p = 0.42), overall complication (45.4 vs. 51.8%, p = 0.53), major complication (18.2 vs. 12.5%, p = 0.43), grade B/C pancreatic fistula (6.8 vs. 7.1%, p = 0.71), were comparable in the 2 groups. Only postoperative confusion rate was significantly lower in the LDP group (4.5 vs. 25%, p = 0.01). Median length of stay was significantly lower in the LDP group (14 +/- 10 vs. 16 +/- 11 days, p = 0.04). R0 resection was performed in 94% of LDP patients and 89% in ODP patients without significant difference (p = 0.73). CONCLUSIONS: The laparoscopic approach seems to reduce blood loss, postoperative confusion, and length of stay in elderly patients requiring distal pancreatectomy. PMID- 29340814 TI - Comparison of mesh fixation devices for laparoscopic ventral hernia repair: an experimental study on human anatomic specimens. AB - BACKGROUND: As there is a lack of clarity in terms of the tensile strength of mesh fixation for laparoscopic ventral hernia repair (LVHR), our aim was to investigate the immediate tensile strength of currently available mesh fixation devices on human anatomic specimens. METHODS: Sixteen recently deceased body donators (mean body mass index of 24.4 kg/m2) were used to test the immediate tensile strength (Newton) of 11 different LVHR mesh fixation devices. RESULTS: Each of the 11 different laparoscopic fixation devices was tested 44 times. Non articulating tackers provided higher fixation resistance to tensile stress in comparison to articulating tackers (5.1-mm ReliaTackTM: 16.9 +/- 8.7 N vs. 12.2 +/- 5.6 N, p = 0.013; 7-mm ReliaTackTM: 19.8 +/- 9.4 N vs. 15.0 +/- 7.0 N, p = 0.007). Absorbable tacks with a greater length, i.e. >=6 mm (7-mm ReliaTackTM, 6 mm SorbaFixTM and 7.2-mm SecureStrapTM) had significantly higher fixation tensile strength than tacks with a shorter length, i.e. < 6 mm (5.1-mm ReliaTackTM and 5.1-mm AbsorbaTackTM) (p < 0.001). Furthermore, transfascial sutures (PDS 2-0 sutures 26.3 +/- 5.6 N) provided superior fixation tensile strength than 5.1-mm AbsorbaTackTM (13.6 +/- 7.3 N) and cyanoacrylate glues such as LiquiBand FIX8TM (3.5 +/- 2.4 N) (p < 0.001, respectively). There was a significant deterioration in fixation capacity in obese body donators with a body mass index > 30 kg/m2 (13.8 +/- 8.0 vs. 17.9 +/- 9.7 N, p = 0.044). CONCLUSIONS: Although articulating laparoscopic tackers improve accessibility and facilitate the utilization of tacks within the fixation weak spot adjacent to the trocar placement, an articulating shaft that is not ergonomic to use may limit mechanisms of force transmission. For mesh fixation in LVHR, transfascial sutures and tacks with a longer length provide better immediate fixation tensile strength results. PMID- 29340815 TI - Comparison between submucosal tunneling endoscopic resection and video-assisted thoracoscopic enucleation for esophageal submucosal tumors originating from the muscularis propria layer: a randomized controlled trial. AB - BACKGROUND AND AIMS: Surgical resection is considered the first treatment option for submucosal tumors (SMTs) originating from the muscularis propria layer while submucosal tunneling endoscopic resection (STER) is proved to be a safe and effective method for treating SMTs. This study aimed to compare video-assisted thoracoscopic enucleation (VATE) with STER for treating esophageal SMTs. METHODS: Sixty-six patients with small esophageal SMTs were prospectively randomized from July 2014 to December 2015. After exclusion of 8 patients, 58 subjects scheduled for STER or VATE were enrolled. Clinicopathological, endoscopic, and adverse events (AEs) data were collected and analyzed between STER and VATE. RESULTS: Forty-six males and 12 females with a mean age of 46.1 +/- 9.4 years were randomized to the STER (n = 30) and VATE (n = 28) groups, respectively. Demographics and lesion features were similar between the two groups. Median procedure time was shorter in the STER group than the VATE group (44.5 vs. 106.5 min, P < 0.001); cost was lower in the STER group (4499.46 vs. 6137.32 USD, P = 0.010). Median decrease in hemoglobin levels post-procedure was - 1.6 g/L in the STER group and 14.7 g/L after VATE (P = 0.001). Lower postoperative pain scores were found in the STER group compared with the VATE group (2 vs. 4, P < 0.001). No recurrent or residual tumors were found in either group. En bloc resection rates, complete resection rates, hospital times, and post-procedure AEs were similar between two groups. The en bloc resection rates for SMTs < 20.0 mm were 100% in both groups while STER achieved only 71.4% en bloc resection rate for SMTs >= 20.0 mm. CONCLUSION: STER and VATE are comparably effective for esophageal SMTs; however, STER is superior to VATE with shorter operation time and decreased cost, and seems safer than VATE. STER is recommended for SMTs < 20.0 mm while VATE is recommended for SMTs with a transverse diameter > 35.0 mm. Clinical trail registration statement: This study is registered at http://www.chictr.org.cn/showproj.aspx?proj=4814 . The registration identification number is ChiCTR-TRC-14004759. The registration date is April 30, 2014. PMID- 29340816 TI - Expanding indications of robotic thyroidectomy. AB - BACKGROUND: Robotic thyroidectomy has many advantages with comparable oncologic safety over conventional open surgery in low-risk differentiated thyroid cancer cases. However, there have been few reports on the outcomes of patients who have been treated with robotic thyroidectomy for more advanced thyroid cancer. The aim of this study was to investigate the validity of expanding indications of robotic thyroidectomy for more advanced thyroid cancer. METHODS: The data of 80 patients with thyroid cancer who underwent robotic total thyroidectomy between January 2013 and December 2014 performed by a single surgeon at Chung-Ang University Hospital were retrospectively reviewed. Among them, 40 patients who had cancer larger than 2 cm or suspicious capsular invasion, or central lymph node (LN) metastasis in preoperative pathologic and radiologic examinations were categorized into the more advanced thyroid cancer group and the remaining patients into the early thyroid cancer group. We compared surgical safety and surgical completeness parameters between the two groups. RESULTS: The patients in more advanced thyroid cancer group had larger tumors, more extrathyroidal extension, and higher T stages. Surgical safety parameters, such as hypoparathyroidism, vocal cord palsy, and other complications did not differ significantly between the two groups. Surgical completeness parameters, such as the mean number of retrieved LNs, median values of the stimulated thyroglobulin levels, and the proportion of patients with stimulated thyroglobulin levels less than 1 ng/mL, also did not differ significantly. CONCLUSIONS: The outcomes of the patients with more advanced thyroid cancer who were treated with robotic thyroidectomy were comparable to those of the early cancer group patients. Well designed investigations that are conducted at multiple centers are needed to affirm the validity of expanding indications of robotic thyroidectomy. PMID- 29340817 TI - Adenoma detection rate metrics in colorectal cancer surveillance colonoscopy. AB - BACKGROUND: A target goal for screening adenoma detection rate (S-ADR) of >= 25% has been set to define high-quality colonoscopy performance. However, there is no current accepted target goal for ADR in colorectal cancer (CRC) surveillance. This makes quality assessment challenging when physicians perform cancer surveillance colonoscopy but minimal screening procedures. METHODS: In this cohort study, consecutive colonoscopies performed at either Rush University Medical Center or Rush Oak Park Hospital by a gastroenterologist or colorectal surgeon in average risk screening population and CRC surveillance population were reviewed retrospectively from 2006 to 2012 and prospectively from 2013 to 2016. ADR in first surveillance colonoscopy following surgical resection of CRC (CRC ADR) was reported in high-quality detectors (HQD) or low-quality detectors (LQD) based on achievement of 25% ADR in consecutive screening colonoscopy in average risk patients. Pearson's correlation was used to describe the association between individual S-ADR and CRC-ADR for colonoscopists. RESULTS: There was a very strong positive correlation (r = 0.88, p = 0.002) between ADR in average risk screening and first time CRC surveillance. For HQD as defined by S-ADR >= 25% (n = 10 colonoscopists), the CRC-ADR was 37.7% (78/207, SD 8%) which was very similar to their respective S-ADR of 33.4% (816/2440, p = 0.22). For LQD (n = 5 colonoscopists), the CRC-ADR was 20.2% (40/198) which was similar to their respective S-ADR of 20.1% (119/591, p = 0.99). The CRC-ADR was significantly higher for HQD than for LQD (37.7 vs. 20.2%, p < 0.0001). CONCLUSIONS: The major finding of this study is a defined CRC-ADR for HQD based on the ability to achieve S-ADR >= 25%. S-ADR strongly correlates with CRC-ADR. CRC-ADR is quite similar to the colonoscopists' respective S-ADR for both HQD and LQD. For colonoscopists who perform limited screening colonoscopies but do perform CRC surveillance colonoscopies, ADR metrics similar to S-ADR to assess quality in colonoscopy could be considered. PMID- 29340818 TI - Changes in plasma albumin levels in early detection of infectious complications after laparoscopic colorectal cancer surgery with ERAS protocol. AB - BACKGROUND: Combination of laparoscopic approach with ERAS protocol in colorectal surgery allows for an early discharge. However there is a risk that some of the discharged patients are developing, asymptomatic at the time, infectious complications. This may lead to a delay in diagnostics and proper treatment introduction. We aimed to assess the usefulness of preoperative plasma albumin concentration and their changes as indicators of infectious complications in patients undergoing colorectal cancer surgery. METHODS: Prospective analysis included 105 consecutive patients who underwent laparoscopic colorectal cancer resection between August 2014 and September 2016. In all cases standardised 16 item perioperative care ERAS protocol was used (mean compliance > 85%). Patients with IBD, distant metastases, undergoing emergency or multivisceral resection were excluded. Blood samples were collected preoperatively and on POD 1, 2, 3. Plasma albumin concentration was measured. Patients were divided into two groups depending on the presence of infectious complications. We analysed the differences in the levels of albumin and the dynamics of changes. RESULTS: Group 1-82 not complicated patients, Group 2-23 patients with at least one infectious complication. Preoperatively, there were no significant differences in the levels of serum albumin between those groups (Group 1-38.7 +/- 4.9 g/l; Group 2-37.7 +/- 5.0 g/l). In postoperative period, decrease was observed in both (POD 1: Group 1 36.5 +/- 4.2 g/l, Group 2-34.7 +/- 4.2 g/l, p = 0.07; POD 2: Group 1-36.2 +/- 4.1 g/l, Group 2-32.6 +/- 5.6 g/l, p = 0.01; POD 3: Group 1-36.0 +/- 4.4 g/l, Group 2 30.9 +/- 3.5 g/l, p = 0.01). The decrease was significantly greater in Group 2 on POD 2 and 3. CONCLUSIONS: We showed that a regular measurement of albumin in the early postoperative days may be beneficial in the detection of postoperative infectious complications. Although changes in albumins are observed early after surgery, this parameter is relatively unspecific. PMID- 29340819 TI - Laparoscopic liver resection for colorectal liver metastasis patients allows patients to start adjuvant chemotherapy without delay: a propensity score analysis. AB - BACKGROUND: Although adjuvant chemotherapy (AC) is widely used after liver resection (LR) for colorectal liver metastasis (CRLM), surgical invasiveness may lead to delay in starting AC, which is preferably started within 8 weeks postoperative. We investigated whether laparoscopic liver resection (LLR) for CRLM facilitates AC start without delay. METHODS: Between November 2014 and December 2016, 117 consecutive CRLM patients underwent LR followed by AC. LLR and OLR were performed in 30 and 87 patients, respectively. After propensity score matching on clinical characteristics, oncologic features, and type of resection, the time interval between liver resection and AC start was compared between LLR (n = 22) and OLR (n = 44) groups. RESULTS: After propensity score matching, major LR was performed in 8/22 (36%) and 15/44 (34%) cases of LLR and OLR groups, respectively (P = 1.0). Clinical-pathological characteristic and intraoperative findings were comparable between two groups. There was no significant difference in postoperative complications between the two groups. The time interval between liver resection and AC start was significantly shorter in LLR than in OLR group (43 +/- 10 versus 55 +/- 18 days, P = 0.012). While 15/44 (34%) patients started AC after 8 weeks postoperative in OLR group, all patients in LLR group started AC within 8 weeks. CONCLUSIONS: LLR for CRLM is associated with quicker return to AC when compared to OLR. The delivery of AC without delay allows CRLM patients to optimize the oncologic treatment sequence. PMID- 29340822 TI - A preclinical animal study of a novel, simple, and secure duct and vessel occluder for laparoscopic surgery. AB - BACKGROUND: Secure occlusion of large blood vessels and ductal structures is critical to all surgeries and remains a challenge in many minimally invasive procedures. This study compares in vivo use of the Amsel Occluder (AO) for secure laparoscopic blood vessel and duct closure, with one of the many commercially available hemoclips (Ligaclip(r)), in the porcine model. METHODS: Laparoscopic closure of vessels and ducts was performed on 12 swine to compare the ease of use, safety and efficacy of the AO with a hemoclip, as well as the tissue response at > 30 days (10 swine). All vessels and ducts were occluded and then transected between the occluding clips. Any bleeding or leakage was noted. In the chronic study, confirmation of satisfactory vessel occlusion post nephrectomy was determined by laparotomy as well as by contrast angiography and venography. The tissue response and healing was evaluated by a histopathological study for the effects of any biological incompatibilities. RESULTS: In the acute laparoscopic study, a total of 24 occlusions between 2 and 10 mm were performed with the AO (n = 19) and hemoclip (n = 5). In the chronic study, 5 nephrectomies (AO n = 3, hemoclip N = 2) and 5 cholecystectomies (AO n = 3, hemoclip n = 2) were performed with survival ranging from 42 to 72 days. One pig who sustained a splenic injury at trocar insertion and suffered a delayed ruptured spleen with massive hemorrhage on postoperative day 22. Unlike occlusion with the AO, multiple hemoclips were used for each vessel occlusion. Histopathological examination showed no difference in the tissue response and healing of the AO and hemoclip. CONCLUSIONS: The Amsel Vessel occluder delivered laparoscopically provides an occlusion similar to a hand-sewn transfixion suture, is simple to use, and creates an occlusion which is not only more secure, but also as safe with respect to the health of the surrounding tissues, as that of the widely used hemoclip (Ligaclip(r)). PMID- 29340821 TI - A novel and safe approach: middle cranial approach for laparoscopic right hemicolon cancer surgery with complete mesocolic excision. AB - BACKGROUND: Mastering right hemicolectomy techniques using laparoscopy in colorectal cancer surgery is very difficult. Although the long-term prognosis of laparoscopic right hemicolectomy (LRH) and complete mesocolic excision is unquestionable, different surgeons have their own opinions on routes of conducting LRH. OBJECTIVES: LRH surgery is very complex due to the upper abdominal anatomical structure and vascular variation. Therefore, it has been considered the most difficult of all colorectal cancer surgeries. Our innovative middle cranial approach (MCA) was developed to avoid unnecessary injuries and minimize the operative time, thereby reducing the patient's hospital stay and improving their short-term prognosis. METHODS: We compared 90 colon cancer patients who underwent the MCA between January 2016 and January 2017 with 82 patients who underwent the conventional central approach conducted by the same group of physicians (with Dr Cui as the surgeon) from 2011 to 2015. A short-term statistical analysis was performed. RESULTS: A total of 90 patients were included: 43 men and 47 women. Twenty-three patients underwent abdominal surgery (including stomach, rectum, and sigmoid colon surgery; appendectomy; and uterine attachment surgery). The median age of these patients was 62.6 (28-85) years; the median BMI was 22.9 (14.7-33.3) kg/m2; the mean bleeding volume was 53.9 (10-100) ml; the mean tumour diameter was 5.7 (0.8-9) cm, and the average number of lymph nodes detected was 19.2 (7-49). CONCLUSIONS: Our study showed that radical resection of right-sided colon cancer using the MCA was safe and feasible for the treatment of colorectal cancer patients. PMID- 29340823 TI - Endoscopic perforations: what are the indications for surgery? AB - BACKGROUND: Despite their low occurrence, endoscopic perforations (EPs) are concerning. Some predictive factors have been identified, and EP management is debated, whether non-surgical (medical and/or endoscopic) or surgical. The objective was to elaborate a predictive score for surgical management of EP. METHODS: All the patients addressed for upper and lower EP, except oesophageal EP, were retrospectively included (2004-2015). Demographic data, endoscopic features (indication, location, type), clinical, biological and radiological presentations of EP were reviewed. Management of EP and outcomes were recorded. A predictive score was constructed by multiple linear regression and a cut-off value for surgical management was identified. Additional subgroup analysis was performed according to the location of EP (upper and lower). RESULTS: Among 41150 endoscopic procedures, 44 patients (22 males, median age = 65 years [22-87]) presenting with EP were included (0.09%). Lower gastrointestinal (GI) endoscopy was mostly performed (66%). EP diagnosis was immediate in 73% of the cases (n = 32). Non-surgical management was efficient in 2/3 cases treated medically alone, and 18/20 cases treated by endoscopy. Surgical management was always successful (n = 24/24). In case of peritonitis, surgery was systematically required, whereas easily required in case of delayed diagnostic of EP. The EP score was based on the presence of previous abdominal surgery, lower GI endoscopy and diagnostic endoscopy. A cut-off EP score of 22.8% for surgery was chosen; it was associated with a specificity and sensitivity of 40 and 100%, respectively. When subgroups were analysed according to EP location, the EP score was still based on the presence of previous abdominal surgery and diagnostic endoscopy. The cut-off was 6.3 and 73.3% for upper (specificity: 73%, sensitivity: 100%) and lower (89 and 45%) locations, respectively. CONCLUSION: The predictive EP score may avoid inappropriate surgical management, as well as delayed surgery after non-surgical management failure. Forthcoming study should prospectively validate this score. PMID- 29340824 TI - A software-based tool for video motion tracking in the surgical skills assessment landscape. AB - BACKGROUND: The use of motion tracking has been proved to provide an objective assessment in surgical skills training. Current systems, however, require the use of additional equipment or specialised laparoscopic instruments and cameras to extract the data. The aim of this study was to determine the possibility of using a software-based solution to extract the data. METHODS: 6 expert and 23 novice participants performed a basic laparoscopic cholecystectomy procedure in the operating room. The recorded videos were analysed using Kinovea 0.8.15 and the following parameters calculated the path length, average instrument movement and number of sudden or extreme movements. RESULTS: The analysed data showed that experts had significantly shorter path length (median 127 cm vs. 187 cm, p = 0.01), smaller average movements (median 0.40 cm vs. 0.32 cm, p = 0.002) and fewer sudden movements (median 14.00 vs. 21.61, p = 0.001) than their novice counterparts. CONCLUSION: The use of software-based video motion tracking of laparoscopic cholecystectomy is a simple and viable method enabling objective assessment of surgical performance. It provides clear discrimination between expert and novice performance. PMID- 29340825 TI - Laparoscopic surgery in colon cancer patients treated with chronic anti thrombotic therapy. AB - BACKGROUND: Anti-thrombotic medications are commonly used for the treatment and prevention of cardiovascular diseases. Laparoscopic resection of colon cancer has generally been accepted with favorable outcomes being reported in randomized control trials. However, the safety and efficacy of laparoscopic surgery for colon cancer patients receiving chronic anti-thrombotic therapy (AT) remain unclear. METHODS: We identified 951 patients who underwent elective resection for colon cancer between 2009 and 2016 from our database. Patients were classified according to the surgical approach and chronic AT. Clinicopathological factors and surgical outcomes were analyzed between patient groups. Patients' backgrounds were matched using propensity scores in laparoscopic surgery. RESULTS: Anti thrombotic drugs were chronically used in 135 patients. Among 714 patients who underwent laparoscopy-assisted surgery, 96 received AT. The laparoscopic approach was superior to open surgery in terms of bleeding, surgical site infections, and hospital stay in patients receiving AT. In laparoscopy-assisted surgery, the AT group patients were older and showed lower hemoglobin and albumin levels than those not receiving AT (non-AT group), and were predominantly male. After propensity score matching, estimated blood loss and operative times were similar between the two groups (93 matched patients). The frequencies of postoperative bleeding (2.2%) and thrombotic complications (0%) in the AT group did not significantly differ from those in the non-AT group (1.1 and 0%, respectively). Moreover, AT did not affect survivals. CONCLUSION: Laparoscopic approach appears to be safer and beneficial for colonic cancer patients receiving long-term AT. Bleeding and thrombotic events associated with laparoscopic surgery were not significantly affected by AT. PMID- 29340826 TI - Single-port laparoscopic surgery in uncomplicated acute appendicitis: a randomized controlled trial. AB - BACKGROUND: Single-port laparoscopic surgery (SPLS) is an alternative, minimally invasive surgical approach for managing appendicitis. The aim of this randomized trial was to evaluate the safety and efficacy of SPLS in uncomplicated appendicitis. METHODS: Between December 2009 and November 2010, 194 patients with radiologically diagnosed acute appendicitis were randomly allocated to undergo either SPLS or multiport laparoscopic surgery (MPLS). Patients with intraoperative findings of perforated appendicitis were excluded from the analysis. The primary endpoint was perioperative morbidity. All data were analyzed according to the intention-to-treat principle. RESULTS: Fourteen cases were excluded from the analysis. Of the remaining 180 patients, 90 were assigned to the SPLS group, and 90 to the MPLS group. Baseline characteristics were well balanced between the groups. In the SPLS group, the rate of conversion to MPLS was 11.1%. The operation time was 14.5 min longer for SPLS than for MPLS (p < 0.01), but there was no between-group difference in the rate of intraoperative complications (SPLS, 4.4%; MPLS, 0%; p = 0.12) or postoperative complications (SPLS, 4.4%; MPLS, 2.2%; p = 0.68). Compared to the MPLS group, the SPLS group had higher cumulative dose of analgesics (tramadol; 73.9 vs. 51.7 mg, p = 0.04), longer postoperative time to first passage of flatus (27.7 vs. 20.1 h, p < 0.01), longer postoperative hospitalization (2.5 vs. 2.1 days, p < 0.05), and higher total cost (1826.9 vs. 1662.4 USD, p < 0.01). CONCLUSIONS: This randomized trial indicates that, compared to MPLS, SPLS does not increase the rate of perioperative or postoperative complications in uncomplicated appendicitis, but may have disadvantages such as increased operation time, later postoperative functional recovery, longer hospital stay, and higher costs, although the difference is minimal (ClinicalTrials.gov Identifier: NCT01007318). PMID- 29340827 TI - Single-incision laparoscopic hepaticojejunostomy for children with perforated choledochal cysts. AB - BACKGROUND: Conventionally, perforated choledochal cyst (CDC) is a contraindication of laparoscopic treatment. The current study is to evaluate efficacy of single-incision laparoscopic hepaticojejunostomy (SILH) in children with perforated CDCs. METHODS: One hundred and thirty-three children with perforated CDCs who underwent SILHs in our hospital between August 2011 and August 2017 were reviewed. RESULTS: Fifteen (11.3%) patients were converted to open procedures due to severe adhesions and oozing. The mean age at SILH was 2.09 years (range 2 days-12.37 years). The average operative time was 3.23 h (range 2 5 h). The mean postoperative hospital stay was 6.25 days (range 4-16 days). The mean time to full diet resumption was 2.18 days (range 2-6 days). The mean duration of drainage was 3.71 days (range 3-10 days). The median follow-up period was 24 months. Postoperative liver function tests and serum amylase levels returned to normal within 1 year. Three (2.5%) patients required blood transfusions because of extensive oozing from intramural micro-vessels of CDCs. Two (1.7%) patients encountered duodenal injuries because of severe adhesions. The duodenum was repaired with double-layer 5-0 PDS running sutures. One (0.8%) patient with giant CDC had abdominal fluids because of extensive dissection of intrapancreatic segment of CDC. He recovered after 10 days of drainage. None of patients had bile leak, anastomotic stenosis, cholangitis, intrahepatic reflux, pancreatic leak, pancreatic calculi formation, pancreatitis, Roux-loop obstruction, or adhesive intestinal obstruction. CONCLUSIONS: Single-incision laparoscopic hepaticojejunostomy is safe and effective for selected patients with perforated CDCs in experienced hands. PMID- 29340829 TI - Trends and surgical outcomes of laparoscopic versus open pyloromyotomy. AB - BACKGROUND: Hypertrophic pyloric stenosis (HPS) is one of the most common pediatric illnesses necessitating surgical intervention. Controversy remains over the optimal surgical approach between laparoscopic pyloromyotomy (LP) and open pyloromyotomy (OP). LP has gained acceptance for management of HPS in an era of expanding minimal access surgical approaches to pediatric conditions. Several studies suggest advantages of LP over OP; however, selection bias and small sample sizes remain a concern. This study compares the outcomes of LP versus OP using propensity score methods. METHODS: The 2013-2015 ACS NSQIP Pediatric PUF was queried for all infants undergoing pyloromyotomy. The trend in the proportion of infants undergoing LP was described and perioperative outcomes between the OP and LP cohorts were compared using propensity score weighted regression models. RESULTS: 4847 infants were identified to have undergone surgical pyloromyotomy. The proportion of LP performed increased significantly from 59% in 2013 to 65.5% in 2015 (p < 0.001). LP was associated with lower overall complications (1.4% vs 2.9%) (ORadj 0.52, 95% CI 0.34-0.80), surgical site-related complications (1.1% vs 2.1%) (ORadj 0.52, 95% CI 0.32-0.84), and post-operative length of stay (1.5 days vs 1.9 days) (ORadj 0.89, 95% CI 0.81-0.98) without significant differences in related re-operation (0.9% vs 0.9%) (ORadj 1.01, 95% CI 0.52-1.93) or readmissions (1.4% vs 2.1%) (ORadj 0.73, 95% CI 0.46-1.17). CONCLUSIONS: Our study demonstrates that LP is increasingly utilized for management of hypertrophic pyloric stenosis and is associated with shorter length of stay, and lower odds of surgical site-specific and overall complications without differences in related re-operations. This study supports LP as a safe and effective method for management of HPS. PMID- 29340830 TI - Fabrication of SrGe2 thin films on Ge (100), (110), and (111) substrates. AB - Semiconductor strontium digermanide (SrGe2) has a large absorption coefficient in the near-infrared light region and is expected to be useful for multijunction solar cells. This study firstly demonstrates the formation of SrGe2 thin films via a reactive deposition epitaxy on Ge substrates. The growth morphology of SrGe2 dramatically changed depending on the growth temperature (300-700 degrees C) and the crystal orientation of the Ge substrate. We succeeded in obtaining single-oriented SrGe2 using a Ge (110) substrate at 500 degrees C. Development on Si or glass substrates will lead to the application of SrGe2 to high efficiency thin-film solar cells. PMID- 29340828 TI - Hiatal hernia recurrence following magnetic sphincter augmentation and posterior cruroplasty: intermediate-term outcomes. AB - BACKGROUND: We have previously reported short-term outcomes after hiatal hernia repair (HHR) at the time of magnetic sphincter augmentation (MSA) for gastroesophageal reflux disease (GERD). Here we report intermediate-term outcomes and hernia recurrence rate after concomitant MSA and HHR. METHODS: This is a retrospective cohort study of patients who underwent repair of a hiatal hernia 3 cm or larger at the time of MSA implantation between May 2009 and December 2015. The primary endpoint was hiatal hernia recurrence identified by routine postoperative videoesophagography or endoscopy. Recurrence was defined by a 2 cm or greater upward displacement of the stomach through the diaphragmatic esophageal hiatus. Secondary endpoints included cessation of proton-pump inhibitor (PPI), persistent dysphagia requiring intervention, and GERD health related quality-of-life (HRQL) scores 1 year from surgery. RESULTS: During the study period, 47 of 53 (89%) patients underwent concomitant MSA with HHR and complied with surveillance. Hiatal hernias ranged from 3 to 7 cm (mean 4 +/- 1). Mean clinical follow-up time was 19 months (range 1-39). GERD-HRQL score decreased from 20.3 to 3.1 (p < .001), 89% of patients remained off PPIs, and 97% of patients reported improvement or resolution of symptoms. Two recurrent hiatal hernias were identified on surveillance imaging for a recurrence rate of 4.3% at a mean 18 (+/- 10) months after initial operation. Persistent dysphagia occurred in 13% (6/47) over the first year, which resolved after a single balloon dilation in 67% (4/6). Two patients elected for device removal due to dilation-refractory dysphagia and persistent reflux symptoms. CONCLUSION: Concomitant magnetic sphincter augmentation and hiatal hernia repair in patients with gastroesophageal reflux disease and a moderate-sized hiatal hernia demonstrates durable subjective reflux control and an acceptable hiatal hernia recurrence rate at 1- to 2-year follow-up. PMID- 29340831 TI - Noninvasive quantification of left-to-right shunt by phase contrast magnetic resonance imaging in secundum atrial septal defect: the effects of breath holding and comparison with invasive oximetry. AB - To investigate the effect of breath-holding on left-to-right shunts in patients with a secundum atrial septal defect (ASD). Thirty-five consecutive patients with secundum ASDs underwent right heart catheterization and invasive oximetry. Phase contrast magnetic resonance imaging (MRI) was performed for the main pulmonary artery and ascending aorta. All measurements were obtained during free breathing (FB) (quiet breathing; no breath-hold), expiratory breath-hold (EBH), and inspiratory breath-hold (IBH). Pulmonary circulation flow (Qp) and systemic circulation flow (Qs) were calculated by multiplying the heart rate by the stroke volume. Measurements during FB, EBH, and IBH were compared, and the differences compared to invasive oximetry were evaluated. There were significant differences among the measurements during FB, EBH, and IBH for Qp (FB, 7.70 +/- 2.68; EBH, 7.18 +/- 2.34; IBH, 6.88 +/- 2.51 l/min); however, no significant difference was found for Qs (FB, 3.44 +/- 0.74; EBH, 3.40 +/- 0.83; IBH, 3.40 +/- 0.86 l/min). There were significant differences among the measurements during FB, EBH, and IBH for Qp/Qs (FB, 2.38 +/- 1.12; EBH, 2.24 +/- 0.95; IBH, 2.14 +/- 0.97). Qp/Qs during FB and EBH correlated better with Qp/Qs measured by invasive oximetry than did IBH. The limit of agreement was smaller for EBH than for FB and IBH. In patients with secundum ASDs, Qp/Qs significantly decreased with breath-holding. The accuracy of the Qp/Qs measurement by MRI compared with invasive oximetry during EBH was higher than during FB and IBH. PMID- 29340832 TI - Sacral neuromodulation in patients with congenital faecal incontinence. Special issues and review of the literature. AB - BACKGROUND: The aim of the present study was to evaluate the effectiveness of sacral neuromodulation (SNM) as a treatment for congenital faecal incontinence (FI). METHODS: A retrospective study was conducted on patients with congenital FI who had SNM surgery at our institution between October 2005 and June 2013. An initial percutaneous nerve evaluation was performed, and patients with an improvement of more than 50% in their symptoms had permanently implants for SNM treatment. RESULTS: There were 4 patients who received a permanent implant. Mean duration of follow-up was 67.5 months (range 45-135 months). At last follow-up, 2 patients maintained significant improvement with SNM, 1 was explanted after 4 years of treatment due to infection but remained asymptomatic and SNM failed in the remaining patient who went on to graciloplasty. CONCLUSIONS: SNM may be of value for treating FI in patients with anorectal malformations. PMID- 29340833 TI - Short-term outcomes of transanal haemorrhoidal dearterialization versus tissue selecting technique. PMID- 29340834 TI - Limited daily feeding and intermittent feeding have different effects on regional brain energy homeostasis during aging. AB - Albeit aging is an inevitable process, the rate of aging is susceptible to modifications. Dietary restriction (DR) is a vigorous nongenetic and nonpharmacological intervention that is known to delay aging and increase healthspan in diverse species. This study aimed to compare the impact of different restricting feeding regimes such as limited daily feeding (LDF, 60% AL) and intermittent feeding (IF) on brain energy homeostasis during aging. The analysis was focused on the key molecules in glucose and cholesterol metabolism in the cortex and hippocampus of middle-aged (12-month-old) and aged (24-month old) male Wistar rats. We measured the impact of different DRs on the expression levels of AMPK, glucose transporters (GLUT1, GLUT3, GLUT4), and the rate-limiting enzyme in the cholesterol synthesis pathway (HMGCR). Additionally, we assessed the changes in the amounts of cholesterol, its metabolite, and precursors following LDF and IF. IF decreased the levels of AMPK and pAMPK in the cortex while the increased levels were detected in the hippocampus. Glucose metabolism was more affected in the cortex, while cholesterol metabolism was more influenced in the hippocampus. Overall, the hippocampus was more resilient to the DRs, with fewer changes compared to the cortex. We showed that LDF and IF differently affected the brain energy homeostasis during aging and that specific brain regions exhibited distinct vulnerabilities towards DRs. Consequently, special attention should be paid to the DR application among elderly as different phases of aging do not respond equally to altered nutritional regimes. PMID- 29340835 TI - Repurposed FDA-approved drugs targeting genes influencing aging can extend lifespan and healthspan in rotifers. AB - Pharmaceutical interventions can slow aging in animals, and have advantages because their dose can be tightly regulated and the timing of the intervention can be closely controlled. They also may complement environmental interventions like caloric restriction by acting additively. A fertile source for therapies slowing aging is FDA approved drugs whose safety has been investigated. Because drugs bind to several protein targets, they cause multiple effects, many of which have not been characterized. It is possible that some of the side effects of drugs prescribed for one therapy may have benefits in retarding aging. We used computationally guided drug screening for prioritizing drug targets to produce a short list of candidate compounds for in vivo testing. We applied the virtual ligand screening approach FINDSITEcomb for screening potential anti-aging protein targets against FDA approved drugs listed in DrugBank. A short list of 31 promising compounds was screened using a multi-tiered approach with rotifers as an animal model of aging. Primary and secondary survival screens and cohort life table experiments identified four drugs capable of extending rotifer lifespan by 8-42%. Exposures to 1 uM erythromycin, 5 uM carglumic acid, 3 uM capecitabine, and 1 uM ivermectin, extended rotifer lifespan without significant effect on reproduction. Some drugs also extended healthspan, as estimated by mitochondria activity and mobility (swimming speed). Our most promising result is that rotifer lifespan was extended by 7-8.9% even when treatment was started in middle age. PMID- 29340836 TI - Primary culture of lung fibroblasts from hyperoxia-exposed rats and a proliferative characteristics study. AB - Lung fibrosis is an ultimate consequence of bronchopulmonary dysplasia (BPD) which shows the excessive proliferation of lung fibroblasts (LFs). To find a better model for studying the role of LFs in hyperoxia-induced lung fibrosis at the cellular level, we isolated LFs from the lung tissue of hyperoxia- and normoxia-exposed rat lungs on postnatal days 7, 14 and 21 for primary culture to study their proliferative behavior. In the present study, the LF predominance was > 95% in our culture method. The LFs isolated from rats exposed to hyperoxia in vivo showed significantly greater proliferation than that from normoxia-exposed rats. Flow cytometry revealed that percentage of LFs in S and G2/M stage increased, and proportion in the G0/G1 stage declined at the same time. A greater presence of myofibroblasts in LFs isolated from rats exposed to hyperoxia compared with those exposed to normoxia. In addition, elevated collagen level, transforming growth factor-beta and connective tissue growth factor protein expression in conditioned medium were also found in hyperoxia LFs. These data demonstrate that hyperoxia promotes LFs proliferation, myofibroblast transdifferentiation and collagen synthesis in a time-dependent manner. The primary culture of LFs from hyperoxia-exposed rats is a feasible method for studying the pathogenesis and treatment of lung fibrosis caused by BPD at the cellular level. PMID- 29340837 TI - Exacerbation of autoimmune hemolytic anemia induced by the first dose of programmed death-1 inhibitor pembrolizumab: a case report. AB - Immune checkpoint inhibitors (ICIs) have demonstrated efficacy against various types of cancers. In addition to immune-related adverse events (irAEs) induced by ICIs, exacerbation of baseline autoimmune disease has been occasionally reported. This is the first report of autoimmune hemolytic anemia (AIHA) exacerbated by pembrolizumab. An 82-year-old Japanese male was diagnosed with lung adenocarcinoma 2 years ago. The patient had chronic anemia with positive direct and indirect Coombs test prior to initiating pembrolizumab therapy at a nearby hospital. However, a definitive diagnosis of AIHA was not made at that time. Seventeen days after the first dose of pembrolizumab, the patient was admitted to the Kobe City Medical Center General Hospital with severe hemolytic anemia (Hb 3.6 g/dL). After thorough examinations including bone marrow biopsy, the patient was diagnosed with pre-existing AIHA exacerbated by pembrolizumab therapy. Two weeks after treatment with prednisone, the levels of hemoglobin became stable with the reduced frequency of blood transfusion and improvements of hemolytic findings on blood tests and the patient was discharged from the hospital. This case report highlighted the importance of determining the patient's pre-existing autoimmune status associated with chronic anemia prior to initiating treatment with ICIs. PMID- 29340838 TI - Text-based phenotypic profiles incorporating biochemical phenotypes of inborn errors of metabolism improve phenomics-based diagnosis. AB - Phenomics is the comprehensive study of phenotypes at every level of biology: from metabolites to organisms. With high throughput technologies increasing the scope of biological discoveries, the field of phenomics has been developing rapid and precise methods to collect, catalog, and analyze phenotypes. Such methods have allowed phenotypic data to be widely used in medical applications, from assisting clinical diagnoses to prioritizing genomic diagnoses. To channel the benefits of phenomics into the field of inborn errors of metabolism (IEM), we have recently launched IEMbase, an expert-curated knowledgebase of IEM and their disease-characterizing phenotypes. While our efforts with IEMbase have realized benefits, taking full advantage of phenomics requires a comprehensive curation of IEM phenotypes in core phenomics projects, which is dependent upon contributions from the IEM clinical and research community. Here, we assess the inclusion of IEM biochemical phenotypes in a core phenomics project, the Human Phenotype Ontology. We then demonstrate the utility of biochemical phenotypes using a text based phenomics method to predict gene-disease relationships, showing that the prediction of IEM genes is significantly better using biochemical rather than clinical profiles. The findings herein provide a motivating goal for the IEM community to expand the computationally accessible descriptions of biochemical phenotypes associated with IEM in phenomics resources. PMID- 29340839 TI - The cumulative incidence and risk factors of postoperative inguinal hernia in patients undergoing radical prostatectomy. AB - BACKGROUND: The aim of this study is to investigate the cumulative incidence and risk factors of postoperative inguinal hernia (PIH) in patients undergoing radical prostatectomy, i.e., laparoscopic prostatectomy (LRP) and robot-assisted laparoscopic prostatectomy (RARP). METHODS: This study included 1124 patients who had undergone radical prostatectomy or transurethral resection of bladder tumor from 2011-2016. We compared the cumulative incidence of PIH in the radical prostatectomy groups (460; LRP 341, RARP 119) and the control group (664; transurethral resection of bladder tumor), and we then analyzed the risk factors (age, operative methods, previous abdominal operative history, thickness and width of external oblique muscle and rectus muscle, thickness of abdominal subcutaneous fat layer at Hesselbach's triangle level, body mass index, prostate specific antigen, operative time, specimen weight, Gleason score, and pathology T stage) of PIH in the radical prostatectomy groups. RESULTS: The median follow-up period in this study was 39.6 months. In Kaplan-Meier curve analysis, the cumulative incidence of PIH was 5.3, 4.2, and 0.5% for the LRP, RARP, and control groups, respectively (p < 0.001). Multiple logistic regressions showed that thickness of external oblique muscle and width of rectus muscle were significant risk factors (p < 0.001 and p = 0.027). CONCLUSIONS: PIH is considered to be one of the complications of LRP and RARP. Moreover, we suggest that if the thickness of the muscle is <7.3 mm, thoughtful surgical manipulation is needed for radical prostatectomy, and care should be taken to determine whether hernia occurs during follow-up. PMID- 29340840 TI - Application of gamma irradiation knowledge in tissue sterilisation: inactivation of malaria parasite. AB - Malaria is one of the exclusion criteria used in selecting tissue donors and the absence of this information can lead to rejection of tissues for transplant. The studies on the malaria parasite have been confined to low dose attenuation of parasites in blood for transfusion purposes. There is no published information relating to the inactivation of malaria parasites with irradiation for the sterilisation of tissues. A dose-surviving parasite population following radiation was replotted using D0 value from a published paper whereby D10 value of 41 Gy was obtained. Calculation of sterilisation dose for achieving SAL 10-6 of malaria parasites demonstrated the effectiveness of the sterilisation dose of 25 kGy being used in tissue banking. PMID- 29340820 TI - The development and validation of a scoring tool to predict the operative duration of elective laparoscopic cholecystectomy. AB - BACKGROUND: The ability to accurately predict operative duration has the potential to optimise theatre efficiency and utilisation, thus reducing costs and increasing staff and patient satisfaction. With laparoscopic cholecystectomy being one of the most commonly performed procedures worldwide, a tool to predict operative duration could be extremely beneficial to healthcare organisations. METHODS: Data collected from the CholeS study on patients undergoing cholecystectomy in UK and Irish hospitals between 04/2014 and 05/2014 were used to study operative duration. A multivariable binary logistic regression model was produced in order to identify significant independent predictors of long (> 90 min) operations. The resulting model was converted to a risk score, which was subsequently validated on second cohort of patients using ROC curves. RESULTS: After exclusions, data were available for 7227 patients in the derivation (CholeS) cohort. The median operative duration was 60 min (interquartile range 45 85), with 17.7% of operations lasting longer than 90 min. Ten factors were found to be significant independent predictors of operative durations > 90 min, including ASA, age, previous surgical admissions, BMI, gallbladder wall thickness and CBD diameter. A risk score was then produced from these factors, and applied to a cohort of 2405 patients from a tertiary centre for external validation. This returned an area under the ROC curve of 0.708 (SE = 0.013, p < 0.001), with the proportions of operations lasting > 90 min increasing more than eightfold from 5.1 to 41.8% in the extremes of the score. CONCLUSION: The scoring tool produced in this study was found to be significantly predictive of long operative durations on validation in an external cohort. As such, the tool may have the potential to enable organisations to better organise theatre lists and deliver greater efficiencies in care. PMID- 29340841 TI - An efficient gene disruption method using a positive-negative split-selection marker and Agrobacterium tumefaciens-mediated transformation for Nomuraea rileyi. AB - Targeted gene disruption via Agrobacterium tumefaciens-mediated transformation (ATMT) and homologous recombination is the most common method used to identify and investigate the functions of genes in fungi. However, the gene disruption efficiency of this method is low due to ectopic integration. In this study, a high-efficiency gene disruption strategy based on ATMT and the split-marker method was developed for use in Nomuraea rileyi. The beta-glucuronidase (gus) gene was used as a negative selection marker to facilitate the screening of putative transformants. We assessed the efficacy of this gene disruption method using the NrCat1, NrCat4, and NrPex16 genes and found that the targeting efficiency was between 36.2 and 60.7%, whereas the targeting efficiency using linear cassettes was only 1.0-4.2%. The efficiency of negative selection assays was between 64.1 and 82.3%. Randomly selected deletion mutants exhibited a single copy of the hph cassette. Therefore, high-throughput gene disruption could be possible using the split-marker method and the majority of ectopic integration transformants can be eliminated using negative selection markers. This study provides a platform to study the function of genes in N. rileyi. PMID- 29340842 TI - Application of automated peritoneal dialysis in urgent-start peritoneal dialysis patients during the break-in period. AB - OBJECTIVE: Whether automated peritoneal dialysis (APD) is a feasible strategy for urgent-start peritoneal dialysis (PD) therapy during the break-in period remains unclear. This study was conducted to compare the efficacy as well as complications among three PD modes during the break-in period. METHODS: Ninety six patients treated with urgent-start PD after catheterization were retrospectively analyzed. Patients were divided into three groups, incremental continuous ambulatory PD (CAPD) group (n = 26); APD group (n = 42); and APD-CAPD group (n = 28). Clinical parameters at the end of the break-in period and 1 month after the initiation of PD treatment were collected and analyzed. RESULTS: Compared with the traditional incremental CAPD, APD and APD-CAPD were superior as they could effectively remove small-molecule uremic toxins and correct electrolyte imbalance (P < 0.05), while did not increase the incidence of early complications during the break-in period (P > 0.05). However, APD led to a significant decline in albumin and pre-albumin, as compared with APD-CAPD and CAPD (P < 0.05). A PD strategy consisting 6 days of APD and 3 days of CAPD showed a great advantage in preventing excessive protein loss. There were no significant differences in all tested biochemical parameters among the three groups at 1 month after treatment (all P > 0.05). CONCLUSION: Application of APD for urgent start PD during the break-in period is feasible. A combination of APD and CAPD regimens seems to be a more reasonable mode. PMID- 29340843 TI - Phytoene production utilizing the isoprenoid biosynthesis capacity of Thermococcus kodakarensis. AB - Phytoene (C40H64) is an isoprenoid and a precursor of various carotenoids which are of industrial value. Archaea can be considered to exhibit a relatively large capacity to produce isoprenoids, as they are components of their membrane lipids. Here, we aimed to produce isoprenoids such as phytoene in the hyperthermophilic archaeon Thermococcus kodakarensis. T. kodakarensis harbors a prenyltransferase gene involved in the biosynthesis of farnesyl pyrophosphate and geranylgeranyl pyrophosphate, which are precursors of squalene and phytoene, respectively. However, homologs of squalene synthase and phytoene synthase, which catalyze their condensation reactions, are not found on the genome. Therefore, a squalene/phytoene synthase homolog from an acidothermophilic archaeon Sulfolobus acidocaldarius, Saci_1734, was introduced into the T. kodakarensis chromosome under the control of a strong promoter. Production of the Saci_1734 protein was confirmed in this strain, and the generation of phytoene was detected (0.08-0.75 mg L-1 medium). We then carried out genetic engineering in order to increase the phytoene production yield. Disruption of an acetyl-CoA synthetase I gene involved in hydrolyzing acetyl-CoA, the precursor of phytoene, together with the introduction of a second copy of Saci_1734 led to a 3.4-fold enhancement in phytoene production. PMID- 29340844 TI - Comments on: insomnia, postpartum depression and estradiol in women after delivery. PMID- 29340845 TI - Dihydrotestosterone Treatment Accelerates Autograft Reversal Sciatic Nerve Regeneration in Rats. AB - Neuroactive steroids such as progesterone, testosterone, and their derivatives have been widely studied for their neuroprotective roles in the nervous system. Autologous nerve transplantation is considered as the gold standard repair technique when primary suture is impossible; nevertheless, this method is far from ideal. In this study, we aimed to explore the impact of dihydrotestosterone (DHT), a 5alpha-reduced derivative of testosterone, on the recovery of peripheral nerve injury treated with autologous nerve transplantation. Sprague-Dawley rats were subjected to a 10-mm right side sciatic nerve reversed autologous nerve transplantation and randomly divided into groups that received DHT or DHT + flutamide (an androgen receptor blocker) daily for 8 weeks after operation. Our results demonstrated that DHT could speed up the rate of axonal regeneration and increase the expression of myelin protein zero (P0) in autograft reversal sciatic nerves. Thus, our study provided new insights into improving the prognosis of patients with long gap peripheral nerve defects. PMID- 29340846 TI - Novel Isoforms of N16 and N19 Families Implicated for the Nacreous Layer Formation in the Pearl Oyster Pinctada fucata. AB - Although a wide variety of proteins and genes possibly related to the shell formation in bivalve have been identified, their functions have been only partially approved. We have recently performed deep sequencing of expressed sequence tags (ESTs) from the pearl oyster Pinctada fucata using a next generation sequencer, identifying a dozen of novel gene candidates which are possibly associated with the nacreous layer formation. Among the ESTs, we focused on three novel isoforms (N16-6, N16-7, and N19-2) of N16 and N19 families with reference to five known genes in the families and determined the full-length cDNA sequences of these isoforms. Reverse transcription-polymerase chain reaction revealed that N16-6 was expressed in gill, gonad, adductor muscle, and mantle, whereas N16-7 exclusively in mantle. N19-2 was expressed in all tissues examined. In situ hybridization demonstrated their regional expression in mantle and pearl sac, which well corresponded to those shown by EST analysis previously reported. Shells in the pearl oyster injected with dsRNAs of N16-7 and N19-2 showed abnormal surface appearance in the nacreous layer. Taken together, novel isoforms in N16 and N19 families shown in this study are essential to form the nacreous layer. PMID- 29340847 TI - Comparative analysis of aneurysm volume by different methods based on angiography and computed tomography angiography. AB - Endovascular treatment and prognosis of intracranial aneurysms are based on size and volume, which demand more accurate neuroimaging techniques. Aneurysm volume calculation is important to choose endovascular treatment modalities and packing density calculation. Of all these methods, it remains unknown which one is the most accurate to calculate aneurysm volume. The objective of this study is to compare the accuracy of three angiography-based versus three tomographic-based methods which calculate aneurysm volume. A retrospective study which included patients with ruptured and unruptured cerebral aneurysms diagnosed by angiogram and computed tomography angiography (CTA) was done. The accuracy of each method was assessed with an ellipsoid glass model of known volume, which helped us to adjust variation in volumetric measurements done with AngioSuite(c) and AngioCalc(c) softwares (based on angiographic and tomographic images), 3D rotational angiography and 3D-CTA (tridimensional computed tomography angiography), based on measurements of diameters such as maximal width and maximal height. Descriptive statistics, ANOVA for repetitive samples and t test were used. We included 89 patients (126 saccular intracraneal aneurysms). AngioSuite(c) software (angiography-based) showed more accuracy compared to other methods in our control model. The geometric system (AngioCalc) based on CTA images was statistically different from all other methods studied. AngioCalc (CTA based) demonstrated a significant difference compared with other methods hence, it may overestimate volume measurements. AngioSuite PMID- 29340848 TI - Validation of the Korean Munich Chronotype Questionnaire. AB - PURPOSE: The Munich Chronotype Questionnaire (MCTQ) assesses actual sleep-wake timing and has advantages compared to prior chronotype questionnaires in that it differentiates sleep-wake patterns between work days and free days and uses corrected mid-sleep time on free days after correcting for accumulated sleep debt over the week to categorize chronotype. The current study, we validated the Korean version of the MCTQ. METHODS: In this study, 310 participants (mean age = 27.09 +/- 5.64; 78.1% females) completed the Korean version of the MCTQ. RESULTS: MCTQ parameters were significantly correlated with MEQ (Morningness-Eveningness Questionnaire) scores (?r? >= 0.48), and test-retest reliability was >= 0.72. Cutoff scores of 2.5%, which correlated to 2.36 and 8.57 mid-sleep times in our sample, showed the best convergence with MEQ when categorizing chronotype. CONCLUSIONS: Our study suggests that the MCTQ is a useful questionnaire in assessing chronotype in young adults. PMID- 29340849 TI - Risk factors associated with feline urolithiasis. AB - Urinary tract diseases are among the main reasons for consultation in veterinary clinics and hospitals. It affects animals of any age, breed and gender. Among the diseases that affect this system, urolithiasis is the second largest cause of clinical signs compatible with feline urinary tract disease. The term urolithiasis refers to the presence of uroliths in any region of the urinary tract, but it is more commonly seen in the bladder and urethra. Uroliths are classified based on the type of mineral present in their composition, therefore, quantitative and qualitative analyzes are important for a better therapeutic approach. The animals may suffer from the disease and be asymptomatic, or show nonspecific clinical signs, making the diagnosis difficult. The disease should not be seen as a single problem, but as a consequence of various disorders. As dietary, metabolic, genetic and infectious causes, as well as factors that potentiate the chance of development of uroliths such as breed, age, sex, age range, obesity, sedentary lifestyle, geographic region and climate. Thus, the knowledge of the factors that influence the formation of uroliths, as well as the understanding of the pathophysiology, are key elements for better alternatives of therapy and prevention. The recognition of these factors helps to identify susceptible populations, minimizing exposure and increasing the protection factors, which facilitates the diagnosis and treatment of patients with urolithiasis. The objective of this paper is to present the main risk factors involved in the formation of urinary lithiasis in felines. PMID- 29340850 TI - Drug-related problems among community-dwelling older adults in mainland China. AB - Background Little is known about the extent of drug-related problems (DRPs) in community-dwelling older adult patients with chronic diseases in mainland China. Setting A medication therapy review service at a community health center in Chongqing, China. Objective To identify and categorize DRPs along with pharmacists' recommendations in addressing the DRPs identified. Method The study was conducted between May 2015 and July 2016. A total of 102 community-dwelling older adults were included. MTR was carried out by clinical pharmacists. DRPs and pharmacotherapy recommendations were recorded and analyzed. Main outcome measure The number of drug-related problems and main problem categories. Results The average age of patients was 69.4 years. Patients took an average of 6.3 medications. A total of 489 DRPs were identified (mean of 4.8 per patient). The most common category was under-treated (27.8%) followed by over- or under-dose (18.8%) and monitoring (17.8%). The number of medications taken was the significant associated factor for DRPs. Pharmacists made 526 recommendations to address the DRPs (mean of 1.1 recommendations per DRP). Primary care providers accepted 68.1% of these recommendations, and implemented 60.9% of them. Conclusion The prevalence of DRPs among studied patient population was high. Pharmacists may play a vital role in addressing the DRPs and optimize pharmacotherapy through MTR service located in community health centers. PMID- 29340851 TI - Comparison of antibiotic dosing recommendations for neonatal sepsis from established reference sources. AB - Background Incorrect dosing is the most frequent prescribing error in neonatology, with antibiotics being the most frequently prescribed medicines. Computer physician order entry and clinical decision support systems can create consistency contributing to a reduction of medication errors. Although evidence based dosing recommendations should be included in such systems, the evidence is not always available and subsequently, dosing recommendations mentioned in guidelines and textbooks are often based on expert opinion. Objective To compare dosage recommendations for antibiotics in neonates with sepsis provided by eight commonly used and well-established international reference sources. Setting An expert team from our Dutch tertiary care neonatal intensive care unit selected eight well-established international reference sources. Method Daily doses of the seven most frequently used antibiotics in the treatment of neonatal sepsis, classified by categories for birth weight and gestational age, were identified from eight well-respected reference sources in neonatology/pediatric infectious diseases. Main outcome measure Standardized average daily dosage. Results A substantial variation in dosage recommendations of antibiotics for neonatal sepsis between the reference sources was shown. Dosage recommendations of ampicillin, ceftazidime, meropenem and vancomycin varied more than recommendations for benzylpenicillin, cefotaxime and gentamicin. One reference source showed a larger variation in dosage recommendations in comparison to the average recommended daily dosage, compared to the other reference sources. Conclusion Antibiotic dosage recommendations for neonates with sepsis can be derived from important reference sources and guidelines. Further exploration to overcome variation in dosage recommendations is necessary to obtain standardized dosage regimens. PMID- 29340852 TI - A geochemical view into continental palaeotemperatures of the end-Permian using oxygen and hydrogen isotope composition of secondary silica in chert rubble breccia: Kaibab Formation, Grand Canyon (USA). AB - The upper carbonate member of the Kaibab Formation in northern Arizona (USA) was subaerially exposed during the end Permian and contains fractured and zoned chert rubble lag deposits typical of karst topography. The karst chert rubble has secondary (authigenic) silica precipitates suitable for estimating continental weathering temperatures during the end Permian karst event. New oxygen and hydrogen isotope ratios of secondary silica precipitates in the residual rubble breccia: (1) yield continental palaeotemperature estimates between 17 and 22 degrees C; and, (2) indicate that meteoric water played a role in the crystallization history of the secondary silica. The continental palaeotemperatures presented herein are broadly consistent with a global mean temperature estimate of 18.2 degrees C for the latest Permian derived from published climate system models. Few data sets are presently available that allow even approximate quantitative estimates of regional continental palaeotemperatures. These data provide a basis for better understanding the end Permian palaeoclimate at a seasonally-tropical latitude along the western shoreline of Pangaea. PMID- 29340853 TI - Do bioresorbable polyesters have antimicrobial properties? AB - Biodegradable and bioresorbable polyesters (BBPEs) are a widespread class of aliphatic polymers with a plethora of applications in the medical field. Some reports speculate that these polymers have intrinsic antibacterial activity as a consequence of their acidic degradation by-products. The release of organic acids as a result of the hydrolytic degradation of BBPEs in vivo and the resulting pH drop could be an effective inhibitor of the growth of pathogens in the local environment adjacent to BBPE-based devices. However, there is no clear and conclusive evidence in the literature concerning the antibacterial activity of BBPE to support or refute this hypothesis. In this communication we address this point through an assessment of the antibacterial properties of six well established commercially available BBPEs. Agar diffusion assays and optical density measurements at 600 nm were performed on all the polymer samples to characterize the growth of bacteria and any potential inhibition over an incubation period of 24 h. The results indicated that BBPEs do not possess an intrinsic and immediate antibacterial activity, which is consistent with the clear mismatch between the time-scales for bacterial growth and the rate of degradation of the polyesters. PMID- 29340854 TI - Therapeutic efficacy and safety of a 1927-nm fractionated thulium laser on pattern hair loss: an evaluator-blinded, split-scalp study. AB - Laser- or light-assisted therapies have been used to improve the perifollicular environment by upregulating the expression of growth factors and signaling molecules for hair restoration. The aim of our study was to preclinically and clinically evaluate the therapeutic efficacy and safety of a 1927-nm fractionated thulium laser on pattern hair loss (PHL). An in vivo hairless mouse study and an in vivo human skin environmental scanning electron microscopy (ESEM) study were performed with different power and energy settings. Thereafter, an evaluator blinded, split-scalp study was conducted to evaluate hair thickness and density in 10 PHL patients treated with 12 sessions of fractionated thulium laser treatment with or without post-laser treatment application of a growth factor containing (GF) solution. In in vivo hairless mouse skin, inverted cone-shaped zones of thulium laser-induced tissue coagulation (LITC) were noted immediately after treatment in the epidermis and upper to mid-dermis without remarkable ablative tissue injury. The ESEM study revealed round to oval-shaped zones of non ablative LITC on the surface of the stratum corneum of a human subject immediately after laser irradiation. In PHL patients, 12 sessions of thulium laser monotherapy at 1-week intervals resulted in significantly increased hair density and thickness. Post-laser treatment application of GF solution offered additional therapeutic efficacy by improving hair density and thickness on the split scalp. The use of a fractionated thulium laser with or without post-laser therapy application of GF solution to treat PHL elicited remarkable improvements in hair thickness and hair counts. PMID- 29340855 TI - The relationship between target joints and direct resource use in severe haemophilia. AB - OBJECTIVES: Target joints are a common complication of severe haemophilia. While factor replacement therapy constitutes the majority of costs in haemophilia, the relationship between target joints and non drug-related direct costs (NDDCs) has not been studied. METHODS: Data on haemophilia patients without inhibitors was drawn from the 'Cost of Haemophilia across Europe - a Socioeconomic Survey' (CHESS) study, a cost assessment in severe haemophilia A and B across five European countries (France, Germany, Italy, Spain, and the United Kingdom) in which 139 haemophilia specialists provided demographic and clinical information for 1285 adult patients. NDDCs were calculated using publicly available cost data, including 12-month ambulatory and secondary care activity: haematologist and other specialist consultant consultations, medical tests and examinations, bleed-related hospital admissions, and payments to professional care providers. A generalized linear model was developed to investigate the relationship between NDDCs and target joints (areas of chronic synovitis), adjusted for patient covariates. RESULTS: Five hundred and thirteen patients (42% of the sample) had no diagnosed target joints; a total of 1376 target joints (range 1-10) were recorded in the remaining 714 patients. Mean adjusted NDDCs for persons with no target joints were EUR 3134 (standard error (SE) EUR 158); for persons with one or more target joints, mean adjusted NDDCs were EUR 3913 (SE EUR 157; average mean effect EUR 779; p < 0.001). CONCLUSIONS: Our analysis suggests that the presence of one or more target joints has a significant impact on NDDCs for patients with severe haemophilia, ceteris paribus. Prevention and management of target joints should be an important consideration of managing haemophilia patients. PMID- 29340856 TI - Core point-of-care ultrasound curriculum: What does every anesthesiologist need to know? AB - Point-of-care ultrasound (POCUS) is becoming an integral part of anesthesia practice throughout the world. Despite the growing interest in POCUS among trainees and faculty, POCUS training is variable among universities across Canada. This suggests a need for curriculum development and standardization. International guidelines for Emergency Medicine and Critical Care have common frameworks and may be used as a reference to model anesthesia-specific curricula. The Royal College of Anaesthetists of the United Kingdom currently offers the only nationally approved POCUS curriculum for anesthesia and critical care trainees. Most curricula have in common a stepwise approach that consists of foundation of knowledge and skills and competency building through practice. Nevertheless, a significant variety of didactic modalities have been described, and online learning and simulation offer clear advantages. What constitutes the minimum number of studies necessary to achieve competence is still debated as are the most appropriate tools for assessment of POCUS competency.Availability of trained staff anesthesiologists remains a major limitation to curricula implementation in most centres. A National Curriculum should be modeled on the Competency By Design Approach, in line with the CanMEDS 2015 roles, and start with a focus on basic POCUS modalities and applications. Guidance for the training and certification of POCUS among practicing anesthesiologists is lacking. PMID- 29340858 TI - Critical care echocardiography: a certification pathway for advanced users. PMID- 29340859 TI - Comparative Proteomics of Chromium-Transformed Beas-2B Cells by 2D-DIGE and MALDI TOF/TOF MS. AB - Chromium (Cr) is a highly toxic, common heavy metal used in industrial production. There are two types of Cr in nature: hexavalent chromium (Cr(VI)) and chromium trichloride (Cr(III)). Cr(III) is involved in the metabolism of sugars and lipids, whereas Cr(VI) is absorbed through the respiratory tract and skin and generates free radicals that result in secondary toxicity. Cr(VI) leads to cancer in the occupational population and is therefore recognized as a human carcinogen by the International Agency for Research on Cancer. The specific mechanism underlying Cr-induced carcinogenesis is complex. In this study, two-dimensional fluorescence difference gel electrophoresis and matrix-assisted laser desorption ionization-time-of-flight/time-of-flight mass spectrometry-based techniques were performed to analyze differentially expressed proteins between Beas-2B human bronchial epithelial cells and Cr(VI)-transformed Beas-2B cells. Many differentially expressed proteins were identified in the cells after malignant transformation, including serine/threonine kinase 11, endothelial nitric oxide synthase 3, apolipoprotein A1, vinculin, and lamin A/C. These proteins are involved in many signaling and metabolic pathways, including apoptosis, autophagy, the PI3K/Akt signaling pathway, focal adhesion, cell motility, and actin cytoskeleton rearrangement. PMID- 29340860 TI - Trace element phytoextraction from contaminated soil: a case study under Mediterranean climate. AB - The current field study aims to assess the suitability of four different plant species (i.e. poplar, willow, hemp and alfalfa) to be used for trace element (TE) (i.e. Cd, Cu, Ni, Pb and Zn) phytoextraction under hot-arid Mediterranean climate conditions. Plants were grown for two consecutive years on a moderate TE contaminated soil, supplied with water and mineral nutrients. The growth and physiological parameters were assessed throughout the trial to compare the response of plants to the environmental pollution, and TE uptake rates were measured for aboveground plant tissues. The phytoextraction rate for each species was expressed as a function of aboveground biomass yield and the TE uptake and translocation within the plant. Alfalfa played a significant role in reducing extractable Ni (60.6%) and Zn (46%) in the soil, whereas hemp reduced 32% of extractable Cd and 46% of extractable Pb; poplar decreased extractable Cd (37%), Ni (49%), Pb (46%) and Zn (63%); and willow reduced the extractable Zn (73%) compared to the beginning of the trial. No change in total TE content was observed; however, poplar and willow were able to extract and accumulate the highest amount of Zn (3200 and 5200 g ha-1 year-1 respectively) and Cu (182 and 116 g ha-1 year-1), whereas hemp, with 36 g ha-1 year-1, showed the best phytoextraction potential for Pb. Overall, we found a positive correlation between the phytoextraction rate and biomass yield, extractable TE concentration and translocation factor (TF) and a negative relationship with Ca concentration in the soil. PMID- 29340861 TI - Investigating the composition characteristics of dissolved and particulate/colloidal organic matter in effluent-dominated stream using fluorescence spectroscopy combined with multivariable analysis. AB - Fluorescence excitation-emission matrix (EEM) spectroscopy combined with principal component analysis (PCA) and parallel factor analysis (PARAFAC) were used to investigate the compositional characteristics of dissolved and particulate/colloidal organic matter and its correlations with nitrogen, phosphorus, and heavy metals in an effluent-dominated stream, Northern China. The results showed that dissolved organic matter (DOM) was comprised of fulvic-like, humic-like, and protein-like components in the water samples, and fulvic-like substances were the main fraction of DOM among them. Particulate/colloidal organic matter (PcOM) consisted of fulvic-like and protein-like matter. Fulvic like substances existed in the larger molecular form in PcOM, and they comprised a large amount of nitrogen and polar functional groups. On the other hand, protein-like components in PcOM were low in benzene ring and bound to heavy metals. It could be concluded that nitrogen, phosphorus, and heavy metals in effluent had an effect on the compositional characteristics of natural DOM and PcOM, which may deepen our understanding about the environmental behaviors of organic matter in effluent. PMID- 29340862 TI - Effect of brewery wastewater obtained from different phases of treatment plant on seed germination of chickpea (Cicer arietinum), maize (Zea mays), and pigeon pea (Cajanus cajan). AB - Brewing industry releases large quantities of wastewater after product generation. Brewery wastewater contains organic compounds which are biodegradable in nature. These biodegradable wastes can be recycled and reused and hence considered as suitable products for agriculture. But before using wastewater for agriculture, it is better to evaluate the phytotoxic effects of wastewater on crops. Hence, the main objective of this study is to evaluate the effects of brewery effluent on seed germination and growth parameters of selected crop species like chickpea (Cicer arietinum), maize (Zea mays), and pigeon pea (Cajanus cajan). Study comprised seven types of water treatments-tap water as control, diluted UASBR effluent (50% effluent + 50% distilled water): UASBR50, undiluted UASBR effluent: UASBR100, diluted TC effluent (50% effluent + 50% distilled water): ETP50,TC effluent without dilution: ETP100, 10% diluted reverse osmosis (RO10) reject (10% RO reject + 90% distilled water), and 25% diluted reverse osmosis(RO25) reject (25% RO reject + 75% distilled water) with three replications in completely randomized design. Germination test was performed in petri plates for 5 days. Parameters like germination percentage, germination rate index, seedling length, phytotoxicity index, seed vigor index, and biomass were calculated. All parameters decreased with increase in respective effluent concentration. Among all treatments, RO25 showed highest inhibitory effect on all three crops. Even though undiluted effluent of UASBR and ETP effluent showed positive effect on germination, seedling growth of three crops was promoted to the maximum by UASBR50 and ETP50. Hence, from the study, it was concluded that dilution of brewery effluent can be recommended before using it for irrigational purpose. PMID- 29340863 TI - Effects of urease and nitrification inhibitors on the soil mineral nitrogen dynamics and nitrous oxide (N2O) emissions on calcareous soil. AB - Urease inhibitors and nitrification inhibitors can reduce nitrogen (N) loss in agriculture soil. However, the effect of inhibitors on soil N2O emissions under the drip irrigation system remains unclear. A pot and a field experiment with two inhibitors were conducted to explore how inhibitors regulate soil nitrogen transformation and N2O emissions. In the pot experiment, three treatments included control, urea, and urea + N-(n-butyl)thiophosphoric triamide (NBPT, urease inhibitor). In the field experiment, three treatments included control, urea, and urea + NBPT + 2-chloro-6-(trichloromethyl)pyridine (nitrapyrin, nitrification inhibitor). The urease inhibition rate in the treatment of urea + NBPT was 27.5% at the 14th day of incubation (pot experiment), and NH4+-N was significantly decreased by 37-64% compared with urea alone treatment. In the field experiment, the nitrification inhibition rate in the treatment of urea + NBPT + nitrapyrin was 47.7 and 63.9% on the 3rd day after fertilization at the wheat heading and filling stages, respectively. Compared to urea treatment, NO3- N concentration in the double-inhibitor-added treatment was significantly decreased by 32 and 20% on the 5th day after fertilization at the heading and filling stages, respectively; N2O fluxes were also decreased by 30.9 and 33.3% at the two stages of wheat, respectively. In total, adding an inhibitor reduced N loss by 7.39 and 7.44% at the 14th and 35th day in the pot experiment and by 10.53 and 6.65% at the two growing stages of wheat in the field experiment, respectively. Path and correlation analysis showed that N2O emissions were significantly correlated with soil NO3- in both pot and field experiments. PMID- 29340864 TI - Analysis of accumulation formation of sediment contamination in reservoirs after decades of running: a case study of nitrogen accumulation in Biliuhe Reservoir. AB - Sediment contamination is an important influencing factor for reservoir water quality. Investigations have shown that reservoirs are facing the risk of sediment contamination after running for several decades in China. This paper proposes that the accumulation of sediment contaminant is resulted from the difference between the input and output of contaminant. Further, an accumulation model of reservoir sediment nitrogen is established based on this theory. The calculation result of Biliuhe Reservoir shows that inflow rate of total nitrogen into the reservoir is 4521.47 t/a, the outflow rate is 1033.97 t/a, nitrogen removal by denitrification is 1465.81 t/a, and the accumulation rate is 1841.68 t/a. The accumulation rate of total nitrogen is 77.84 t/a in water, 924.42 t/a in suspended solids, and 839.42 t/a in sediment. The accumulation of nitrogen resulted in the total nitrogen concentration in water increasing from 1.71 mg/L in 1995 to 3.78 mg/L in 2013, and that in sediment increasing from 779.10 mg/kg in 1993 to 2725.00 mg/kg in 2013. It is concluded that sediment contamination has the characteristics of significant accumulation trend, complex forms, and high security risks, which has been a hidden security risk for reservoirs after decades of running. Heterogeneity of the reservoir and complicated influencing factors of sediment contaminant accumulation should be concerned next. PMID- 29340865 TI - Design of a tripartite network for the prediction of drug targets. AB - Drug-target networks have aided in many target prediction studies aiming at drug repurposing or the analysis of side effects. Conventional drug-target networks are bipartite. They contain two different types of nodes representing drugs and targets, respectively, and edges indicating pairwise drug-target interactions. In this work, we introduce a tripartite network consisting of drugs, other bioactive compounds, and targets from different sources. On the basis of analog relationships captured in the network and so-called neighbor targets of drugs, new drug targets can be inferred. The tripartite network was found to have a stable structure and simulated network growth was accompanied by a steady increase in assortativity, reflecting increasing correlation between degrees of connected nodes leading to even network connectivity. Local drug environments in the tripartite network typically contained neighbor targets and revealed interesting drug-compound-target relationships for further analysis. Candidate targets were prioritized. The tripartite network design extends standard drug target networks and provides additional opportunities for drug target prediction. PMID- 29340866 TI - "In silico" study of the binding of two novel antagonists to the nociceptin receptor. AB - Antagonists of the nociceptin receptor (NOP) are raising interest for their possible clinical use as antidepressant drugs. Recently, the structure of NOP in complex with some piperidine-based antagonists has been revealed by X-ray crystallography. In this study, a multi-flexible docking (MF-docking) procedure, i.e. docking to multiple receptor conformations extracted by preliminary molecular dynamics trajectories, together with hybrid quantum mechanics/molecular mechanics (QM/MM) simulations have been carried out to provide the binding mode of two novel NOP antagonists, one of them selective (BTRX-246040, formerly named LY-2940094) and one non selective (AT-076), i.e. able to inactivate NOP as well as the classical u- k- and delta-opioid receptors (MOP KOP and DOP). According to our results, the pivotal role of residue D1303,32 (upper indexes are Ballesteros Weinstein notations) is analogous to that enlighten by the already known X-ray structures of opioid receptors: binding of the molecules are predicted to require a slight readjustment of the hydrophobic pocket (residues Y1313,33, M1343,36, I2195,43, Q2806,52 and V2836,55) in the orthosteric site of NOP, accommodating either the pyridine-pyrazole (BTRX-246040) or the isoquinoline (AT-076) moiety of the ligand, in turn allowing the protonated piperidine nitrogen to maximize interaction (salt-bridge) with residue D1303,32 of the NOP, and the aromatic head to be sandwiched in optimal pi-stacking between Y1313,33 and M1343,36. The QM/MM optimization after the MF-docking procedure has provided the more likely conformations for the binding to the NOP receptor of BTRX-246040 and AT-076, based on different pharmacophores and exhibiting different selectivity profiles. While the high selectivity for NOP of BTRX-246040 can be explained by interactions with NOP specific residues, the lack of selectivity of AT-076 could be associated to its ability to penetrate into the deep hydrophobic pocket of NOP, while retaining a conformation very similar to the one assumed by the antagonist JDTic into the K-opioid receptor. The proposed binding geometries fit better the binding pocket environment providing clues for experimental studies aimed to design selective or multifunctional opioid drugs. PMID- 29340867 TI - Photoluminescent and Thermoluminescent Studies of Dy3+ and Eu3+ Doped Y2O3 Phosphors. AB - Eu3+ doped and Dy3+ codoped yttrium oxide (Y2O3) phosphors have been prepared using solid-state reaction technique (SSR). The prepared phosphors were characterized by X-ray diffractometer (XRD), energy dispersive X-ray (EDX) spectroscopy, scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR) techniques. Photoluminescence (PL) and Thermoluminescence (TL) properties were studied in detail. PL emission spectra were recorded for prepared phosphors under excitation wavelength 254 nm, which show a high intense peak at 613 nm for Y2O3:Dy3+, Eu3+ (1:1.5 mol %) phosphor. The correlated color temperature (CCT) and CIE analysis have been performed for the synthesized phosphors. TL glow curves were recorded for Eu3+doped and Dy3+codoped phosphors to study the heating rate effect and dose response. The kinetic parameters were calculated using peak shape method for UV and gamma exposures through computerized glow curve deconvolution (CGCD) technique. The phosphors show second order kinetics and activation energies varying from 5.823 * 10- 1 to 18.608 * 10- 1 eV. PMID- 29340868 TI - Recent Progress in Understanding the Mechanisms of Pain and Itch: the Second Special Issue. PMID- 29340870 TI - A Pilot Evaluation of the Rapid Response Program: A Home Based Family Therapy. AB - A pilot evaluation study of the implementation of the Rapid Response Program, a program utilizing the ecosystemic structural family therapy model, in a rural area of Pennsylvania was conducted. This approach was implemented in children's mental health to supplant a costly model of care that had not proven to break the cycle of dependency for children with severe behavioral problems and their families. Initial results show that the Rapid Response Program appears to improve problematic family patterns and children's behavioral problems. The study results are limited by small sample size; however, the outcomes suggest that the program warrants further study using a more rigorous research design with a larger sample. PMID- 29340869 TI - Intervention Effect of Repetitive TMS on Behavioral Adjustment After Error Commission in Long-Term Methamphetamine Addicts: Evidence From a Two-Choice Oddball Task. AB - Behavioral adjustment plays an important role in the treatment and relapse of drug addiction. Nonetheless, few studies have examined behavioral adjustment and its plasticity following error commission in methamphetamine (METH) dependence, which is detrimental to human health. Thus, we investigated the behavioral adjustment performance following error commission in long-term METH addicts and how it varied with the application of repetitive transcranial magnetic stimulation (rTMS) of the left dorsolateral prefrontal cortex (DLPFC). Twenty nine male long-term METH addicts (for > 3 years) were randomly assigned to high frequency (10 Hz, n = 15) or sham (n = 14) rTMS of the left DLPFC during a two choice oddball task. Twenty-six age-matched, healthy male adults participated in the two-choice oddball task pretest to establish normal performance for comparison. The results showed that 10 Hz rTMS over the left DLPFC significantly decreased the post-error slowing effect in response times of METH addicts. In addition, the 10 Hz rTMS intervention remarkably reduced the reaction times during post-error trials but not post-correct trials. While the 10 Hz rTMS group showed a more pronounced post-error slowing effect than the healthy participants during the pretest, the post-error slowing effect in the posttest of this sample was similar to that in the healthy participants. These results suggest that high frequency rTMS over the left DLPFC is a useful protocol for the improvement of behavioral adjustment after error commission in long-term METH addicts. PMID- 29340871 TI - Neurotoxicity of Prosopis juliflora: from Natural Poisoning to Mechanism of Action of Its Piperidine Alkaloids. AB - Prosopis juliflora was introduced in northeastern Brazil in the 1940s, and since then, it has been available as an alternative for animal nutrition. However, the consumption of P. juliflora as main or sole source of food causes an illness in animals known locally as "cara torta" disease. Cattle and goats experimentally intoxicated presents neurotoxic damage in the central nervous system. Histologic lesions were mainly characterized by vacuolation and loss of neurons in trigeminal motor nuclei. Furthermore, mitochondrial damage in neurons and gliosis was reported in trigeminal nuclei of intoxicated cattle. Studies, using neural cell cultures, have reproduced the main cellular alterations visualized in cara torta disease and contributed to understanding the mechanism of action piperidine alkaloids, the main neurotoxic compound in P. juliflora leaves and pods. Here, we will present aspects of the biological and toxicological properties of P. juliflora and its pharmacologically active compounds. PMID- 29340872 TI - Abstracts of the 2017 A-CURE Symposium. PMID- 29340874 TI - Lattice Boltzmann simulations of droplet dynamics in time-dependent flows. AB - We study the deformation and dynamics of droplets in time-dependent flows using 3D numerical simulations of two immiscible fluids based on the lattice Boltzmann model (LBM). Analytical models are available in the literature, which assume the droplet shape to be an ellipsoid at all times (P.L. Maffettone, M. Minale, J. Non Newton. Fluid Mech 78, 227 (1998); M. Minale, Rheol. Acta 47, 667 (2008)). Beyond the practical importance of using a mesoscale simulation to assess "ab initio" the robustness and limitations of such theoretical models, our simulations are also key to discuss --in controlled situations-- some relevant phenomenology related to the interplay between the flow time scales and the droplet time scales regarding the "transparency" transition for high enough shear frequencies for an external oscillating flow. This work may be regarded as a step forward to discuss extensions towards a novel DNS approach, describing the mesoscale physics of small droplets subjected to a generic hydrodynamical strain field, possibly mimicking the effect of a realistic turbulent flow on dilute droplet suspensions. PMID- 29340873 TI - Fontan Surgical Planning: Previous Accomplishments, Current Challenges, and Future Directions. AB - The ultimate goal of Fontan surgical planning is to provide additional insights into the clinical decision-making process. In its current state, surgical planning offers an accurate hemodynamic assessment of the pre-operative condition, provides anatomical constraints for potential surgical options, and produces decent post-operative predictions if boundary conditions are similar enough between the pre-operative and post-operative states. Moving forward, validation with post-operative data is a necessary step in order to assess the accuracy of surgical planning and determine which methodological improvements are needed. Future efforts to automate the surgical planning process will reduce the individual expertise needed and encourage use in the clinic by clinicians. As post-operative physiologic predictions improve, Fontan surgical planning will become an more effective tool to accurately model patient-specific hemodynamics. PMID- 29340875 TI - Thromboelastography-based anticoagulation management during extracorporeal membrane oxygenation: a safety and feasibility pilot study. AB - BACKGROUND: There is no consensus on the management of anticoagulation during extracorporeal membrane oxygenation (ECMO). ECMO is currently burdened by a high rate of hemostatic complications, possibly associated with inadequate monitoring of heparin anticoagulation. This study aims to assess the safety and feasibility of an anticoagulation protocol for patients undergoing ECMO based on thromboelastography (TEG) as opposed to an activated partial thromboplastin time (aPTT)-based protocol. METHODS: We performed a multicenter, randomized, controlled trial in two academic tertiary care centers. Adult patients with acute respiratory failure treated with veno-venous ECMO were randomized to manage heparin anticoagulation using a TEG-based protocol (target 16-24 min of the R parameter, TEG group) or a standard of care aPTT-based protocol (target 1.5-2 of aPTT ratio, aPTT group). Primary outcomes were safety and feasibility of the study protocol. RESULTS: Forty-two patients were enrolled: 21 were randomized to the TEG group and 21 to the aPTT group. Duration of ECMO was similar in the two groups (9 (7-16) days in the TEG group and 11 (4-17) days in the aPTT group, p = 0.74). Heparin dosing was lower in the TEG group compared to the aPTT group (11.7 (9.5-15.3) IU/kg/h vs. 15.7 (10.9-21.3) IU/kg/h, respectively, p = 0.03). Safety parameters, assessed as number of hemorrhagic or thrombotic events and transfusions given, were not different between the two study groups. As for the feasibility, the TEG-based protocol triggered heparin infusion rate adjustments more frequently (p < 0.01) and results were less frequently in the target range compared to the aPTT-based protocol (p < 0.001). Number of prescribed TEG or aPTT controls (according to study groups) and protocol violations were not different between the study groups. CONCLUSIONS: TEG seems to be safely used to guide anticoagulation management during ECMO. Its use was associated with the administration of lower heparin doses compared to a standard of care aPTT-based protocol. Trial registration ClinicalTrials.gov, October 22,2014. Identifier: NCT02271126. PMID- 29340876 TI - Biomaterials and Regenerative Medicine in Urology. AB - Autologous gastrointestinal tissue is the gold standard biomaterial for urinary tract reconstruction despite its long-term neuromechanical and metabolic complications. Regenerative biomaterials have been proposed as alternatives; however many are limited by a poor host derived regenerative response and deficient supportive elements for effective tissue regeneration in vivo. Urological biomaterials are sub-classified into xenogenic extracellular matrices (ECMs) or synthetic polymers. ECMs are decellularised, biocompatible, biodegradable biomaterials derived from animal organs. Synthetic polymers vary in chemical composition but may have the benefit of being reliably reproducible from a manufacturing perspective. Urological biomaterials can be 'seeded' with regenerative stem cells in vitro to create composite biomaterials for grafting in vivo. Mesenchymal stem cells are advantageous for regenerative purposes as they self-renew, have long-term viability and possess multilineage differentiation potential. Currently, tissue-engineered biomaterials are developing rapidly in regenerative urology with many important clinical milestones achieved. To truly translate from bench to bedside, regenerative biomaterials need to provide better clinical outcomes than current urological tissue replacement strategies. PMID- 29340877 TI - Brief Report: Subjective Social Mobility and Depressive Symptoms in Syrian Refugees to Germany. AB - Previous findings indicate that refugees are at increased risk for mental health problems. In addition to stressful pre-migration experiences, post-migration factors may contribute to poor mental health outcomes. Among immigrants to the United States, downward mobility in subjective social status (SSS) was associated with depression, corroborating the potentially detrimental mental health consequences of a decline in one's perceived social position. The present study examined whether downward mobility in SSS among male refugees from Syria to Germany is associated with depression. We found that refugees who experience stronger downward mobility in SSS exhibit more severe depressive symptoms and were more likely to fulfill provisional DSM-IV criteria for a diagnosis of Major Depression. Our findings highlight the importance to consider the 'social pain' of downward social mobility during the post-migration phase. PMID- 29340878 TI - Core curriculum case illustration: tubo-ovarian abscess. AB - This is the 47th installment of a series that will highlight one case per publication issue from the bank of cases available online as part of the American Society of Emergency Radiology (ASER) educational resources. Our goal is to generate more interest in and use of our online materials. To view more cases online, please visit the ASER Core Curriculum and Recommendations for Study online at: http://www.erad.org/page/CCIP_TOC . PMID- 29340880 TI - GATA-3 is superior to GCDFP-15 and mammaglobin to identify primary and metastatic breast cancer. AB - PURPOSE: Despite numerous studies on the utility of GATA-3 as breast cancer marker, its comparison with other breast markers, its concordance between primary and metastatic tumors and its expression in primary cancers from sites with frequent breast metastases remains unclear. METHODS: To address these questions, totally 993 invasive breast cancers (IBC), 254 paired nodal metastases, 23 distant metastases, and 208 lung carcinomas were included. GATA-3 expression was analyzed by immunohistochemistry and compared to other breast markers [gross cystic disease fluid protein 15 (GCDFP-15) and mammaglobin (MGB)]. RESULTS: GATA 3 was expressed in 82.5% of IBC, predominantly in luminal (93.9%), and lower in non-luminal cancers [59.6% of HER2 overexpressing (HER2-OE) and 38.1% of triple negative breast cancer (TNBC) subtypes]. GATA-3 identified more IBC than GCDFP-15 (23.9%) and MGB (46.6%). However, MGB showed a comparable sensitivity for non luminal cancers to GATA-3. Combining MGB and GATA-3 improved sensitivity for both HER2-OE (80.8%) and TNBC cases (55.4%). GATA-3 showed a high sensitivity for nodal metastases and distant metastases, with good concordance with primary tumors. GATA-3 was expressed in 1.0% of lung carcinomas, with sensitivity and specificity of 82.5 and 99.0% in differentiating IBC and lung carcinoma. CONCLUSIONS: GATA-3 expression was the highest in luminal breast carcinomas, and showed higher sensitivity than GCDFP-15 and MGB. However, in the poorly differentiated IBC, its utility was still limited. One should be aware of the possible GATA-3 expression in lung carcinomas. PMID- 29340879 TI - Diethylstilbestrol arrested spermatogenesis and somatic growth in the juveniles of yellow catfish (Pelteobagrus fulvidraco), a fish with sexual dimorphic growth. AB - In fish, spermatogenesis and somatic growth are mainly regulated by hypothalamic pituitary-gonadal (HPG) and hypothalamic-pituitary-somatic (HPS) axes, respectively. Xenoestrogens have been reported to impair spermatogenesis in some fishes, and arrest somatic growth in some others, whereas, whether xenoestrogens are capable of disrupting spermatogenesis and somatic growth simultaneously in fish that exhibits sexual dimorphic growth is little known, and the underlying mechanisms remain poorly understood. In this study, male juveniles of yellow catfish (Pelteobagrus fulvidraco), which exhibits a sexual dimorphic growth that favors males, were exposed to diethylstilbestrol (DES) for 28 days. After exposure, DES significantly disrupted the spermatogenesis (decreased gonadal somatic index (GSI) and germ cell number) and arrested the somatic growth (declined body weight) of the catfish juveniles. Gene expression and plasma steroid analyses demonstrated the suppressed mRNA levels of genes in HPG axis (gnrh-II, fshbeta, and lhbeta in the brain and dmrt1, sf1, fshr, cyp17a1, cyp19a1a, and cyp11b2 in the testis) and decreased 17beta-estrodial (E2) and 11 ketotestosterone (11-KT) levels in plasma. Further analysis revealed the arrested germ cell proliferation (cyclin d1), meiosis (dmc1, sycp3), and enhanced apoptosis (decreased bcl-2 and elevated bax/bcl-2 ratio) in the testis. Besides, DES also suppressed the mRNA levels of genes in HPS axis (ghrh, gh, and prl in the brain and ghr, igf1, igf2a, and igf2b in the liver). The suppressed HPG and HPS axes were thus supposed to disturb spermatogenesis and arrest somatic growth in yellow catfish. The present study greatly extended our understanding on the mechanisms underlying the toxicity of DES on spermatogenesis and somatic growth of fish. PMID- 29340881 TI - Circulating free DNA integrity and concentration as independent prognostic markers in metastatic breast cancer. AB - PURPOSE: Non-invasive blood-based molecular markers have been investigated for cancer diagnosis and prognosis. Circulating free or cell-free DNA (cfDNA) variables have been shown to be putative markers in breast cancer prognosis. METHODS: Here, we investigated the potential prognostic ability of cfDNA concentration and cfDNA integrity (cfDI) in a study cohort of 268 patients by quantitative PCR. We compared cfDNA concentration and cfDI at baseline and after one cycle of therapy in metastatic breast cancer (MBC) patients. RESULTS: A significantly increased cfDI (P = 1.21E-7 for ALU and P = 1.87E-3 for LINE1) and decreased cfDNA concentration (P = 1.17E-3 for ALU and P = 1.60E-2 for LINE1) in both repetitive DNA elements after one cycle of therapy was observed. A multiple Cox regression model indicated that cfDI and cfDNA concentration can serve as independent prognostic markers in patients at baseline with HR (95% CI) of 0.70 (0.48-1.01) for ALU cfDI, 0.63 (0.44-0.92) for LINE1 cfDI, 2.44 (1.68-3.53) for ALU cfDNA concentration, and 2.12 (1.47-3.06) for LINE1 cfDNA concentration and after one cycle of therapy with HR (95% CI) of 0.59 (0.42-0.84) for ALU cfDI, 0.51 (0.36-0.74) for LINE1 cfDI, 1.59 (1.31-1.92) for ALU cfDNA concentration, and 1.30 (1.17-1.45) for LINE1 cfDNA concentration, respectively. By comparing integrated prediction error of different models, cfDNA variables were shown to improve the prognostic power of the CTC status. CONCLUSIONS: We hereby show that cfDNA variables, especially in combination with other markers, can serve as attractive prognostic markers for MBC patients at baseline and during the systematic therapy. PMID- 29340882 TI - Circulating small-sized endothelial microparticles as predictors of clinical outcome after chemotherapy for breast cancer: an exploratory analysis. AB - PURPOSE: Therapeutic exploitation of angiogenesis in breast cancer has been limited by the lack of reliable biomarkers. Circulating small-sized endothelial microparticles (sEMP) are likely to play a significant role as messengers of angiogenesis. Higher levels of EMP have been observed in cancer patients, but their prognostic value in breast cancer is unknown. Our aim was to determine the value of circulating sEMP as a marker of response to chemotherapy in breast cancer. METHODS: We included patients with breast cancer treated with neoadjuvant or first-line chemotherapy. Baseline and post-treatment circulating sEMP (CD144+) were quantified using a flow cytometer approach specifically designed for analysis of small-sized particles (0.1-0.5 MUm). Small-sized EMP response was defined as a post-treatment decrease of sEMP larger than the median decrease of sEMP after chemotherapy. Baseline and post-chemotherapy VEGFA levels were determined with ELISA. RESULTS: Forty-four breast cancer patients were included (19 with metastatic and 25 with locally advanced disease). Median levels of sEMP decreased after chemotherapy (P = 0.005). Response to chemotherapy showed a non significant trend to associate with sEMP response (P = 0.056). A sEMP response was observed in 51% of patients and was associated with better overall survival (HR 0.18; 95% CI 0.04-0.87; P = 0.02) and progression free survival (HR 0.30; 95% CI 0.09-0.99; P = 0.04) in the group of women with metastatic disease. Post chemotherapy decrease of VEGFA levels was not associated with breast cancer prognosis. CONCLUSIONS: Our results did not support sEMP as a marker of response to chemotherapy. However, our exploratory analysis suggests that in patients with metastatic breast cancer, the decrease of sEMP levels after chemotherapy is associated with better overall and disease free survival and might be superior to VEGFA levels as an angiogenesis-related prognostic marker. PMID- 29340883 TI - Associations of coffee consumption and caffeine intake with mammographic breast density. AB - PURPOSE: Previous studies suggest that coffee and caffeine intake may be associated with reduced breast cancer risk. We investigated the association of coffee and caffeine intake with mammographic breast density by woman's menopausal status and, in postmenopausal women, by hormone therapy (HT). METHODS: This study included 4130 cancer-free women within the Nurses' Health Study and Nurses' Health Study II cohorts. Percent breast density (PD) was measured from digitized film mammograms using a computer-assisted thresholding technique and square root transformed for the analysis. Average cumulative coffee/caffeine consumption was calculated using data from all food frequency questionnaires preceding the mammogram date. Information regarding breast cancer risk factors was obtained from questionnaires closest to the mammogram date. We used generalized linear regression to quantify associations of regular, decaffeinated, and total coffee, and energy-adjusted caffeine intake with percent density. RESULTS: In multivariable analyses, decaffeinated coffee was positively associated with PD in premenopausal women (2+ cups/day: beta = 0.23, p trend = 0.03). In postmenopausal women, decaffeinated and total coffee were inversely associated with PD (decaffeinated 2+ cups/day: beta = - 0.24, p trend = 0.04; total 4+ cups/day: beta = - 0.16, p trend = 0.02). Interaction of decaffeinated coffee with menopausal status was significant (p-interaction < 0.001). Among current HT users, regular coffee and caffeine were inversely associated with PD (regular coffee 4+ cups/day: beta = - 0.29, p trend = 0.01; caffeine 4th vs. 1st quartile: beta = - 0.32, p trend = 0.01). Among past users, decaffeinated coffee was inversely associated with PD (2+ cups/day beta = - 0.70, p trend = 0.02). CONCLUSIONS: Associations of decaffeinated coffee with percent density differ by woman's menopausal status. Associations of regular coffee and caffeine with percent density may differ by HT status. PMID- 29340884 TI - "I would like to discuss it further with an expert": a focus group study of Finnish adults' perspectives on genetic secondary findings. AB - Lowered costs of genomic sequencing facilitate analyzing large segments of genetic data. Ethical debate has focused on whether and what kind of incidental or secondary findings (SFs) to report, and how to obtain valid informed consent. However, people's support needs after receiving SFs have received less attention. We explored Finnish adults' perspectives on reporting genetic SFs. In this qualitative study which included four focus group discussions (N = 23) we used four vignette letters, each reporting a genetic SF predisposing to a different disease: familial hypercholesterolemia, long QT syndrome, Lynch syndrome, and Li Fraumeni syndrome. Transcribed focus group discussions were analyzed using inductive thematic analysis. Major themes were immediate shock, dealing with worry and heightened risk, fear of being left alone to deal with SFs, disclosing to family, and identified support needs. Despite their willingness to receive SFs, participants were concerned about being left alone to deal with them. Empathetic expert support and timely access to preventive care were seen as essential to coping with shock and worry, and disclosing SFs to family. Discussion around SFs needs to concern not only which findings to report, but also how healthcare systems need to prepare for providing timely access to preventive care and support for individuals and families. PMID- 29340885 TI - Quantifying Diastolic Function: From E-Waves as Triangles to Physiologic Contours via the 'Geometric Method'. AB - Conventional echocardiographic diastolic function (DF) assessment approximates transmitral flow velocity contours (Doppler E-waves) as triangles, with peak (Epeak), acceleration time (AT), and deceleration time (DT) as indexes. These metrics have limited value because they are unable to characterize the underlying physiology. The parametrized diastolic filling (PDF) formalism provides a physiologic, kinematic mechanism based characterization of DF by extracting chamber stiffness (k), relaxation (c), and load (x o ) from E-wave contours. We derive the mathematical relationship between the PDF parameters and Epeak, AT, DT and thereby introduce the geometric method (GM) that computes the PDF parameters using Epeak, AT, and DT as input. Numerical experiments validated GM by analysis of 208 E-waves from 31 datasets spanning the full range of clinical diastolic function. GM yielded indistinguishable average parameter values per subject vs. the gold-standard PDF method (k: R2 = 0.94, c: R2 = 0.95, x o : R2 = 0.95, p < 0.01 all parameters). Additionally, inter-rater reliability for GM-determined parameters was excellent (k: ICC = 0.956 c: ICC = 0.944, x o : ICC = 0.993). Results indicate that E-wave symmetry (AT/DT) may comprise a new index of DF. By employing indexes (Epeak, AT, DT) that are already in standard clinical use the GM capitalizes on the power of the PDF method to quantify DF in terms of physiologic chamber properties. PMID- 29340886 TI - Use of Kerrison Rongeur for safe and effective removal of bone in temporomandibular joint ankylosis. PMID- 29340888 TI - Wet Cupping Therapy Improves Local Blood Perfusion and Analgesic Effects in Patients with Nerve-Root Type Cervical Spondylosis. AB - OBJECTIVE: To observe wet cupping therapy (WCT) on local blood perfusion and analgesic effects in patients with nerve-root type cervical spondylosis (NT-CS). METHODS: Fifty-seven NT-CS patients were randomly divided into WCT group and Jiaji acupoint-acupuncture (JA) group according a random number table. WCT group (30 cases) was treated with WCT for 10 min, and JA group (27 cases) was treated with acupuncture for 10 min. The treatment efficacies were evaluated with a Visual Analogue Scale (VAS). Blood perfusion at Dazhui (GV 14) and Jianjing (GB 21) acupoints (affected side) was observed with a laser speckle flowmetry, and its variations before and after treatment in both groups were compared as well. RESULTS: In both groups, the VAS scores significantly decreased after the intervention (P<0.01), while the blood perfusion at the two acupoints significantly increased after intervention (P<0.05); however, the increasement magnitude caused by WCT was obvious compared with JA (P<0.05). CONCLUSIONS: WCT could improve analgesic effects in patients with NT-CS, which might be related to increasing local blood perfusion of acupunct points. PMID- 29340887 TI - Toward Evidence-Based Chinese Medicine: Status Quo, Opportunities and Challenges. AB - How to test the treatments of Chinese medicine (CM) and make them more widely accepted by practitioners of Western medicine and the international healthcare community is a major concern for practitioners and researchers of CM. For centuries, various approaches have been used to identify and measure the efficacy and safety of CM. However, the high-quality evidence related to CM that produced in China is still rare. Over the recent years, evidence-based medicine (EBM) has been increasingly applied to CM, strengthening its theoretical basis. This paper reviews the past and present state of CM, analyzes the status quo, challenges and opportunities of basic research, clinical trials, systematic reviews, clinical practice guidelines and clinical pathways and evidence-based education developed or conducted in China, pointing out how EBM can help to make CM more widely used and recognized worldwide. PMID- 29340889 TI - Quantification of Myocardial Perfusion Defect Size in Rats: Comparison between Quantitative Perfusion SPECT and Autoradiography. AB - PURPOSE: Ultra-high resolution single-photon emission computed tomography (SPECT) system, using multiple pinhole collimators, has been applied to the imaging of small rodents. We aimed to compare the myocardial infarction (MI) area on quantitative perfusion single-photon emission computed tomography (QPS; Cedars Sinai Medical Center, USA) with that on high-resolution autoradiography in rat model to determine the accuracy of perfusion defect measurement by QPS. PROCEDURES: After thoracotomy, rats (n = 9) had their left coronary arteries occluded and reperfused before injection with 185 MBq [99mTc] methoxyisobutylisonitrile ([99mTc]MIBI) for SPECT and autoradiography. Healthy rats (n = 28) were similarly scanned to create a normal database on which to base QPS. The MI area on SPECT images was analysed automatically by QPS software. For the autoradiography images, regions of interest for MI were set at 1 mm intervals. RESULTS: In normal rats, [99mTc]MIBI accumulated throughout the left ventricles, and a polar map of ventricular perfusion showed the lowest and highest uptakes in the inferior (68 % +/- 4 %) and anterior (92 % +/- 5 %) walls, respectively. In the rat MI model, the percentage of polar map with reduced [99mTc]MIBI uptake correlated strongly with the percentage of left ventricle with MI on autoradiography (r2 = 0.90). CONCLUSIONS: QPS can quantitatively evaluate MI severity on myocardial perfusion images in rats, with comparable results to autoradiography. This widely available software could promote the development of new techniques for analysing cardiac images in small animals. PMID- 29340891 TI - Mitomycin C 0.02 and 0.002% efficacy in preventing haze after photorefractive keratectomy. AB - PURPOSE: To compare MMC 0.002% efficacy in preventing haze after PRK in relation to MMC 0.02%. PATIENTS AND METHODS: We conducted a prospective study with patients with myopia or myopic astigmatism undergoing PRK in the same conditions. After PRK, MMC was applied for 30 s in a concentration of 0.02% on the right eye (group 1) and 0.002% on the left eye (group 2). Age, gender, spherical equivalent and haze intensity (1, 3, 6 and 12 months postoperatively) were assessed. Haze was quantified at biomicroscopy (0-4 +). P < 0.05 was considered statistical significant. RESULTS: We evaluated 130 patients, 77 women and 53 men, with a mean age of 30.2 +/- 9 years. The spherical equivalent was - 3.66 D in the group 1 and - 3.77 D in the group 2. In the 1st month after PRK, incidence of haze was 13.9% eyes in group 1 and 14.6% in group 2. In the 3rd month, incidence of haze was 50.0% eyes in group 1 and 48.5% in group 2 which presented with 3 +/4 + traces of haze. In the 12th month, incidence of haze was 7.7% eyes in group 1 and 5.4% in group 2. There was no correlation between haze and age (p = 0.279/0.333), gender (p = 0.345/0.367) or spherical equivalent (p = 0.100/0.054) in groups 1 and 2, respectively. There was no difference in haze between groups 1 and 2 (p = 0.56). CONCLUSION: MMC 0.002% was effective in preventing haze after PRK. As MMC long term safety has not been proved, we suggest its use in a lower concentration, in order to prevent potential complications. PMID- 29340890 TI - Association between average daily television viewing time and the incidence of ovarian cancer: findings from the Japan Collaborative Cohort Study. AB - PURPOSE: Seventy-five percent of epidemiological studies have reported that sedentary behavior is associated with ovarian cancer incidence. Although Japan has one of the most sedentary populations, with median sitting times of 7 h/day, this association has not been investigated. This study aimed to elucidate the association between average daily television (TV) viewing time, which is a major sedentary behavior, and the incidence of ovarian cancer in a large-scale nationwide cohort study in Japan. METHODS: A total of 34,758 female participants aged 40-79 years without a history of cancer at baseline were included in the study. The inverse probability weighted competing risk model was used to calculate the hazard ratio (HR) and 95% confidence interval (CI) for the incidence of ovarian cancer. RESULTS: During a median follow-up of 19.4 years, 59 participants developed ovarian cancer (ICD-10: C56), 2,706 participants developed other types of cancer, and 4,318 participants died. Participants who watched TV for >= 5 h/day were more likely to develop ovarian cancer than those who watched TV for < 2 h/day (HR 2.15; 95% CI 1.54-2.99). CONCLUSION: Our findings suggest that reducing the amount of time spent sedentarily may be beneficial for preventing ovarian cancer. PMID- 29340892 TI - A summer prematriculation program to help students succeed in medical school. AB - Medical schools with a diverse student body face the challenge of ensuring that all students succeed academically. Many medical schools have implemented prematriculation programs to prepare students from diverse backgrounds; however, evidence on their impact is largely lacking. In this study, we analyzed participants' demographics as well as the impact of the prematriculation program on Year 1 performance. Predictive validity of the program was assessed and compared to other traditional predictors, including grade point average (GPA) and Medical College Admission Test (MCAT) scores and subscores. Linear mixed effect models determined the impact of the prematriculation program, and linear regression analysis assessed the predictive value of the overall score in the prematriculation program and other traditional predictors. Demographics of students participating in the prematriculation program from 2013 to 2015 (n = 75) revealed a significantly higher prevalence of academically disadvantaged students including older students, students with lower GPA and MCAT scores and students of racial and ethnic populations that are underrepresented in medicine, compared to non-participants (n = 293). Participants performed significantly better in Year 1 courses that were covered in the prematriculation program compared to courses that were not covered. The overall performance in the prematriculation program correlated significantly with Year 1 performance and was found to be a strong predictor for Year 1 performance. This study suggests that a prematriculation program can help students to succeed in the first year of medical school. The results have implications for medical schools seeking to implement or evaluate the effectiveness of their prematriculation program. PMID- 29340894 TI - Correction to: Burst Out of the Dead Land by the Help of Spirituality: A Case Study of Living with Blindness and Cancer. AB - In the original version of this article, there is a typo in the family name of the author. The co-author family name should be Seyed Bagheri; instead, it has been published as Seyed bagheri. PMID- 29340893 TI - A Prospective Study of Humoral and Cellular Immune Responses to Hepatitis B Vaccination in Habitual Marijuana Smokers. AB - Exposure to Delta9-tetrahydrocannabinol (THC) in vitro and in animal models can significantly impair the differentiation, activation and function of dendritic cells, T cells and B cells. However, studies directly assessing the impact of marijuana smoking on human immunity are lacking. A prospective study of immune responses to a standard hepatitis B vaccination was therefore carried out in a matched cohort of 9 marijuana smokers (MS) and 9 nonsmokers (NS). In addition to their regular marijuana use, MS smoked four marijuana cigarettes in a monitored setting on the day of each vaccination. Blood samples were collected over time to assess the development of hepatitis B-specific immunity. The majority of subjects from both the NS (8) and MS (6) groups developed positive hepatitis B surface antibody titers (>10 IU/L) and of these 6 NS and 5 MS were classified as high antibody (good) responders (>100 IU/L). The development of a good response correlated with the presence of hepatitis B-specific T cell proliferation and cytokine production, resulting in a clear distinction regarding the immune status of good responders versus non-responders. However, even though there were slighter more non-responders in the MS cohort, there were no significant differences between MS and NS with respect to peripheral blood cell phenotypes or vaccination-related changes in hepatitis B responses. While a larger cohort may be required to rule out a small suppressive effect, our findings do not suggest that habitual marijuana smoking exerts a major impact on the development of systemic immunity to hepatitis B vaccination. PMID- 29340895 TI - Confirming the Tripartite Structure of the Duke University Religion Index: A Methodological Approach. AB - The present study provided a methodological critique regarding psychometric investigations of the Duke University Religion Index (DUREL) and its variants. Nine hundred seventeen (630 females and 287 males) university students (M age = 19.24) completed the DUREL, the Personal Religious Inventory, and the Daily Spiritual Experiences Scale online. Confirmatory factor analyses were performed to assess a three-factor (organizational religious activity; non-organizational religious activity; and intrinsic religiosity) and a unidimensional model of the DUREL. Chi-square difference tests were performed, and Akaike information criterion values and Bayesian information criterion values were compared between the models, each of which supported the three-factor model for the DUREL over the unidimensional model. Convergent validity for the three factors of the DUREL emerged through Spearman's rho correlations with measures of personal prayer, ritual religious attendance, religious integration, Closeness to the Divine. This study concluded that the DUREL is a multidimensional measurement of religion for use in English-speaking university students, and it provided a broad methodological note regarding future investigations of measures of religion or spirituality that possess an existing theoretical model. PMID- 29340896 TI - Analysis of fecal microbiota in patients with functional constipation undergoing treatment with synbiotics. AB - This study was performed to identify changes to microbial composition after treatment with synbiotics in patients with functional constipation and to define the key microbiota in the pathogenesis of functional constipation. Fecal samples from 53 patients diagnosed with chronic functional constipation according to the Rome III criteria were analyzed using 16S rRNA sequencing. After treatment with synbiotics for 1 month, fecal samples were collected from 36 patients; after a total of 3 months, fecal samples were collected from 15 patients. The outcomes were compared with the intestinal microbiota profiles of 53 healthy community volunteers. The microbiota in the constipation group differed from that in the treatment group and healthy group. After synbiotic treatment for 1 and 3 months, the abundance of Escherichia/Shigella decreased, whereas that of Prevotella_9 and Lactococcus increased. Comparison of the microbiota among the three groups showed that Prevotella_9 was the characteristic bacteria that decreased in the constipation group and increased in the treatment group. Synbiotic treatment can improve the microbiota in patients with constipation. Identification of the key bacterial genus is important to reveal the mechanism and provide a reliable theoretical basis of synbiotic treatment. It will also promote relevant research of microbiota treatment and individualized treatments. PMID- 29340897 TI - Invasion and translocation of uropathogenic Escherichia coli isolated from urosepsis and patients with community-acquired urinary tract infection. AB - Uropathogenic Escherichia coli (UPEC) strains are found in high numbers in the gut of patients with urinary tract infections (UTIs). We hypothesised that in hospitalised patients, UPEC strains might translocate from the gut to the blood stream and that this could be due to the presence of virulence genes (VGs) that are not commonly found in UPEC strains that cause UTI only. To test this, E. coli strains representing 75 dominant clonal groups of UPEC isolated from the blood of hospitalised patients with UTI (urosepsis) (n = 22), hospital-acquired (HA) UTI without blood infection (n = 24) and strains isolated from patients with community-acquired (CA)-UTIs (n = 29) were tested for their adhesion to, invasion and translocation through Caco-2 cells, in addition to the presence of 34 VGs associated with UPEC. Although there were no differences in the rate and degree of translocation among the groups, urosepsis and HA-UTI strains showed significantly higher abilities to adhere (P = 0.0095 and P < 0.0001 respectively) and invade Caco-2 cells than CA-UTI isolates (P = 0.0044, P = 0.0048 respectively). Urosepsis strains also carried significantly more VGs than strains isolated from patients with only UTI and/or CA-UTI isolates. In contrast, the antigen 43 allele RS218 was found more commonly among CA-UTI strains than in the other two groups. These data indicate that UPEC strains, irrespective of their source, are capable of translocating through gut epithelium. However, urosepsis and HA-UTI strains have a much better ability to interact with gut epithelia and have a greater virulence potential than CA-UPEC, which allows them to cause blood infection. PMID- 29340898 TI - Epidemiological aspects of healthcare-associated infections and microbial genomics. AB - Hospital-acquired infections (HAIs) are a cause of continuously increasing morbidity and mortality. Most of these infections are caused by a limited set of bacterial species, which share the capability to efficiently spread from patient to patient and to easily acquire antibiotic resistance determinants. This renders correct and rapid species identification and antibiotic susceptibility testing (AST) important and underscores the relevance of bacterial epidemiological typing. The latter is needed for the sensitive detection and exact tracing of nosocomial spread of these potentially multidrug-resistant microorganisms (MDRO). Many microbial typing technologies have been developed and put to some level of executive practice, but it seems that the continued evolution in methodology has currently reached an apex: there is likely to be scientific and practical consensus on the ultimate typing potential of bacterial whole-genome sequencing (WGS). The possibility to perform pan-genomic nucleotide-to-nucleotide comparisons between strains belonging to a single species and to detect even minute changes in nucleotide order will identify closely related organisms, while upon accumulation of such mutations, independent descend can be assumed. Calibration of difference levels [i.e. number of single nucleotide polymorphisms (SNPs)] into categories of inter-strain relatedness needs to be performed in order to generate robust, portable typing schemes. Here, we will briefly discuss the state of affairs regarding bacterial epidemiology based upon WGS, its relatedness with the nomenclature of former typing approaches and the continuing need for a global typing language. PMID- 29340899 TI - Assessing sensorimotor excitability after spinal cord injury: a reflex testing method based on cycling with afferent stimulation. AB - : Several studies have examined spinal reflex modulation during leg cycling in healthy and spinal cord injury (SCI) subjects. However, the effect of cutaneous plantar afferent input on spinal excitability during leg cycling after SCI has not been characterised. The aim of the study was to test the feasibility of using controlled leg cycling in combination with plantar cutaneous electrical stimulation (ES) cycling to assess lower limb spinal sensorimotor excitability in subjects with motor complete or incomplete SCI. Spinal sensorimotor excitability was estimated by measuring cutaneomuscular-conditioned soleus H-reflex activity. Reflex excitability was tested before and after a 10-min ES cycling session in 13 non-injured subjects, 6 subjects with motor incomplete SCI (iSCI) who had moderately impaired gait function, 4 subjects with motor iSCI who had severely impaired gait function, and 5 subjects with motor complete SCI (cSCI). No modulation of soleus H-reflex with plantar cutaneous stimuli was observed after either iSCI or cSCI when compared to non-injured subjects. However, after ES cycling, reflex excitability significantly increased in subjects with iSCI and moderately impaired gait function. ES cycling facilitated spinal sensorimotor excitability only in subjects with motor iSCI with residual gait function. Increased spinal excitability induced with a combination of exercise and afferent stimulation could be adopted with diagnostic and prognostic purposes to reveal the activity-based neurorehabilitation profile of individual subjects with motor iSCI. TRIAL REGISTRATION: ISRCTN 26172500 ; retrospectively registered on 15 July 2016 Graphical abstract ?. PMID- 29340900 TI - Xenin: the oldest after insulin? AB - Xenin is a regulatory peptide first isolated from the human gastric mucosa. Using an open-access protein database MEDLINE (33 million molecules; 11 billion amino acid residues) and our original computer program, we conducted a search for the xenin motifs in the primary structure of proteins across almost the entire taxonomic range of evolution. Motifs with 40% homology to human xenin are already present in prokaryotes. Homology reaches 84-96% in single-cell algae and plants, becoming complete since bony fishes. We suppose that this regulatory peptide is more ancient and significant than is usually thought. PMID- 29340901 TI - Mental health-related quality of life and the timing of motherhood: a 16-year longitudinal study of a national cohort of young Australian women. AB - PURPOSE: We examine timing of motherhood in a longitudinal cohort of young Australian women, and its relationship with mental health-related quality of life (SF-36 MHI-5), and with sociodemographic, health behaviour and health-related variables. METHODS: We analysed longitudinal self-report data from a nationally representative cohort of 10,332 Australian women born 1973-1978, surveyed 6 times between 1996 (aged 18-23) and 2012 (aged 34-39). RESULTS: Group-based trajectory modelling identified four groups. Normative Mothers (46%, mean age at motherhood 30.5 years) made the transition to motherhood close to the Australian median age. Early Mothers (25%, 25.2 years) and Very Early Mothers (7%, 20.0 years) made this transition earlier; Not Mothers (22%) had not given birth. Generalised linear mixed models showed that all groups improved mean MHI-5 scores over time. Patterns of group differences were complex: Normative and Early Mothers scored consistently highest; Very Early Mothers scored lowest at most surveys; Not Mothers' scores increased relative to others over time. Most effects disappeared after adjustment for confounders. Early and Very Early Mothers showed multiple indicators of social disadvantage, while Not Mothers had very low rates of marriage. CONCLUSIONS: Timing of motherhood is embedded in sociodemographic and personal contexts. Women with socioeconomic advantages were characterised by higher mental health-related quality of life and later transition to motherhood, but adjustment for relative advantage attenuated differences in mental health related quality of life. The overall findings suggest a pattern of positive adaptation to circumstances, with mental health-related quality of life improving through early adulthood regardless of timing of motherhood. PMID- 29340902 TI - Validation Study of the Abbreviated Version of the Lubben Social Network Scale Spanish Translation among Mexican and Mexican-American Older Adults. AB - PURPOSE: To perform a face validity study of the Spanish version of the Lubben Social Network Scale (LSNS-6) among Mexican and Mexican-American older adults. DESIGN AND METHODS: A cross-national qualitative descriptive approach, based on cognitive survey testing and cross-cultural equivalence analysis, was followed to assess the face validity of the Spanish version of the LSNS-6. Data were collected through 2 focus groups in Los Angeles (LA) and 4 in Mexico City (CDMX). Focus groups followed a semi-structured guide. Eligibility criteria included being 60 years and older, native Spanish speaking, and not suffering from significant cognitive impairments. Four initial focus groups were targeted at conducting a face validity assessment of the initial scale, which led to some modifications. The two remaining focus groups reassessed the face validity of the modified version of the Spanish LSNS-6. RESULTS: 56 older adults participated in the focus groups yielding 152 pages of verbatim transcripts. Analysis of the transcripts identified relevant themes affecting how Mexican and Mexican American older adults understood the items from the LSNS-6 Spanish version, among them: labelling of family members and friends, notions of neighborhood, identifying and counting people, and understanding of "private matters". This led to propose a modified Spanish version of the LSNS-6 following a name generating approach, as well as some language and instruction modifications. The face validity of the modified version suggested a better understanding. IMPLICATIONS: The study proposes that the LSNS-6 Spanish version needs to be adapted for its use among Mexican and Mexican American older adults, and we suggest a modified version. This potentially implies that social isolation may be more accurately measured in a vulnerable group of older adults. Further research is needed to ascertain the construct validity and psychometric properties of the modified version. PMID- 29340904 TI - Turkish Women's Knowledge, Attitudes, and Behaviors on Wet-Nursing, Milk Sharing and Human Milk Banking. AB - Purpose The aim of this study was to determine Turkish women's knowledge, attitudes, and behaviors on wet-nursing, milk sharing, and human milk banking in a primary care setting located in a semi-rural area. Description Donated human milk is a feasible option for feeding infants and children. Currently, there is a debate on the topic starts with the preparations to launch a human milk bank in a large city in Turkey. Several previous papers reported women's opinions in large hospital based studies. Little is known about women's views and practice on donated human milk in the rural areas of Turkey. Assessment The study sample was recruited among married women aged 15-49 years who had given birth within the past 5 years and who were in a family health center for any reason in Honaz, Denizli, Turkey. A total of 240 women were included in the study. The data were collected by questionnaire created by the researchers and consisting of two parts: sociodemographic characteristics, and women's knowledge, attitudes, and behaviors on wet-nursing, milk sharing and human milk banking. Results Thirty women (12.5%) had had a wet-nurse; 20 women (8.7%) wet-nursed babies before; and 17 (7.2%) of the women's children had a wet-nurse. If necessary, 80.9 and 78.3% were willing to accept to do wet-nursing and milk sharing, respectively. 150 (62.5%) heard of human milk banks; 55 (22.9%) approved of the establishment of milk banks. However, only 46 women (19.1%) were willing to donate to the bank. Possibility of marriages between milk siblings (76.8%) was the main reason for not considering the donation. Women's education was another factor affecting their opinion on breast milk sharing and donation to human milk banks. Less educated women were sympathetic to milk sharing (p = 0.02), however, more educated mothers had a propensity to donate to milk banks (p = 0.02). Conclusion Wet-nursing decreased over the years in Turkey, but still an ongoing small child feeding method. Most of the women tend to become a wet nurse or do milk sharing if it is needed, but they are hesitant to donate their milk to human milk banks, mostly due to religious concerns. PMID- 29340903 TI - Characterization of ent-kaurene synthase and kaurene oxidase involved in gibberellin biosynthesis from Scoparia dulcis. AB - Gibberellins (GAs) are ubiquitous diterpenoids in higher plants, whereas some higher plants produce unique species-specific diterpenoids. In GA biosynthesis, ent-kaurene synthase (KS) and ent-kaurene oxidase (KO) are key players which catalyze early step(s) of the cyclization and oxidation reactions. We have studied the functional characterization of gene products of a KS (SdKS) and two KOs (SdKO1 and SdKO2) involved in GA biosynthesis in Scoparia dulcis. Using an in vivo heterologous expression system of Escherichia coli, we found that SdKS catalyzed a cyclization reaction from ent-CPP to ent-kaurene and that the SdKOs oxidized ent-kaurene to ent-kaurenoic acid after modification of the N-terminal region for adaptation to the E. coli expression system. The real-time PCR results showed that the SdKS, SdKO1 and SdKO2 genes were mainly expressed in the root and lateral root systems, which are elongating tissues. Based on these results, we suggest that these three genes may be responsible for the metabolism of GAs in S. dulcis. PMID- 29340905 TI - Expression of VHL tumor suppressor mRNA and miR-92a in papillary thyroid carcinoma and their correlation with clinical and pathological parameters. AB - A growing body of evidence suggests a role of the von Hippel-Lindau (VHL) tumor suppressor gene in the progression of papillary thyroid carcinoma (PTC). Our previous study of VHL in PTCs showed that lower VHL expression was associated with aggressive tumor features, but we found no evidence for VHL downregulation through common genetic or epigenetic modifications. Several studies pointed to a role of microRNA-92a (miR-92a) in the regulation of VHL expression in different cancers. In the present study, we examined the expression levels of VHL mRNA and miR-92a in 42 pairs of PTCs and matched non-tumor thyroid tissues by means of quantitative RT-PCR. We explored the correlation between them and their association with clinicopathological parameters. The results revealed that both VHL and miR-92a were either up- or downregulated in PTCs compared to corresponding non-tumor tissues. On univariate analysis, lower VHL levels were significantly associated with extrathyroid spread (P = 0.022) and capsular invasion (P = 0.032). Multivariate analysis confirmed the association of low VHL with extrathyroid spread (OR 0.246, 95% CI 0.069-0.872, P = 0.038). Higher miR 92a among PTC tissues associated with the presence of nodal metastases (univariate analysis: P = 0.012; multivariate: OR 4.703, 95% CI 1.109-19.938, P = 0.036). A negative correlation between VHL and miR-92a was observed in a subgroup of PTCs having vascular invasion (P = 0.033, r = - 0.673). The data here reported demonstrate that the expression of both VHL and miR-92a is deregulated in PTC tissues and that in some PTCs they may have opposite roles. These roles, as well as their diagnostic and/or prognostic utility, remain to be clarified. PMID- 29340906 TI - An exploratory study on the intergenerational transmission of obesity and dieting proneness. AB - PURPOSE: There is a paucity of research exploring individuals' memories of parental dieting behavior, engagement in "fat talk", or criticism of weight or eating behavior in childhood. This exploratory study utilized a community sample to further characterize the retrospective report of parenting dieting behavior. METHODS: A total of 507 participants (78.1% females; 20.7% males; and 1.2% transgender) were recruited to participate in an online, self-administered survey. RESULTS: Forty percent (216) of participants reported maternal dieting in their family of origin and 34% (182) reported maternal fat talk, 24% (120) reported paternal dieting, and 11% recalled paternal 'fat talk' (58). Subgroup analyses suggest that both male and female participants had greater odds of remembering maternal rather than paternal weight or shape criticism and encouragement to diet (OR = 58.1; and OR = 3.12; p < 0.0001 for male and female participants, respectively). Retrospective report of indirect parental behaviors (e.g. parental dieting) also appears to be associated with direct parental behaviors (e.g. encouraging children to diet). Additionally, participants who recalled maternal encouragement to diet reported a significantly higher adult BMI (beta = 1.31, SE = 0.32, p < 0.0001). CONCLUSION: Results provide preliminary evidence that a sizeable percentage of both adult male and female participants recalled that their parents engaged in fat talk and dieting. In addition, participants recalled parental criticism of their own weight or eating behaviors, which was associated with recall of parental dieting and fat talk. LEVEL OF EVIDENCE: Level V, Descriptive Study. PMID- 29340907 TI - Harnessing a Different Dependency: How to Identify and Target Androgen Receptor Positive Versus Quadruple-Negative Breast Cancer. AB - The androgen receptor (AR) is a promising therapeutic target for a subset of triple-negative breast cancers (TNBCs) in which AR is expressed. However, the mechanistic action of AR and the degree to which primary and metastatic tumors depend on AR, both before and after conventional treatment, remain to be defined. We discuss preclinical and clinical data for AR+ TNBC, the difficulties in monitoring AR protein levels, new methods for determining AR status, the influence of AR on "stemness" in the context of TNBC, the role of combined inhibition of sex steroid production and AR, and the role of AR in regulation of the immune system. Although the exact role of AR in subsets of TNBC is still being characterized, new therapies that target AR and the production of androgens may provide additional options for patients with TNBC for whom chemotherapy is currently the sole treatment option. PMID- 29340908 TI - Fasting Blood Glucose Level in Locally Advanced Non-Small Cell Lung Cancer: a New Prognostic Factor? AB - Hyperglycemia may lead to proliferation, invasion, apoptosis inhibition, migration, and eventually metastasis of cancer cells by several mechanisms. In this study, the effect of hyperglycemia on overall survival (OS), disease-free survival (DFS), and locoregional recurrence (LRR) was investigated in NSCLC. One stage IIIA-IIIB NSCLC patient treated with chemoradiotherapy between 2010 and 2015 was enrolled. Fasting blood glucose (FBG) levels were recorded in pre treatment, treatment, and post-treatment periods. Median age was 54 years (51 62). Fifty-two patients had squamous cell carcinoma (SCC); 19 had adenocarcinoma. Median follow-up was 19 (11-30), median survival was 19 (13-24), and DFS was 9 (7 11) months. Diabetic patients had shorter survival than non-diabetics 12 (95%CI, 10-14) vs. 25 months (95%CI,18-32), p = 0.005. Number of patients with LRR was also higher in diabetics compared to non-diabetics (8/12 vs. 11/37, p = 0.039). OS was shorter in patients with hyperglycemic-FBG and diabetic-FBG levels in pre treatment period (log-rank p = 0.03 and 0.023, respectively). Diabetic-FBG level in pre-treatment period was found to be the only independent risk factor for survival. In subgroup analysis, these differences were apparent in SCC (log-rank p = 0.009 for hyperglicemic, log-rank p = 0.017 for diabetic-FBG). LRR was 68% in patients with diabetic-FBG, 36.5% in patients with non-diabetic-FBG in post treatment period (p = 0.015). Patients with LRR had significantly higher median FBG value in post-treatment period compared to non-relapsing patients, 138 mg/dL (119-228) and 111 mg/dL (99-164), respectively (p = 0.022). The patients with hyperglycemic and diabetic-FBG levels in pre-treatment period had shorter survival compared to normoglycemic ones. The patients with diabetic-FBG level in post-treatment period had higher LRR, and relapsing patients had higher FBG levels in post-treatment period. PMID- 29340909 TI - Liposomal Amphotericin B as Monotherapy in Relapsed Coccidioidal Meningitis. AB - Coccidioidal meningitis remains a difficult clinical problem, and despite life long therapy with triazole antifungals, relapses of disease and medication intolerance occur necessitating salvage treatment. We report two patients with recurrent coccidioidal meningitis who improved following a 2-week course of liposomal amphotericin B monotherapy and discuss potential advantages of this treatment option. PMID- 29340910 TI - Resistance Mechanism in a Terbinafine-Resistant Strain of Microsporum canis. AB - To clarify the terbinafine (TRF) resistance mechanism in a TRF-resistant strain of Microsporum canis, the expression of the pleiotropic drug resistance (PDR1), multidrug resistance (MDR1), MDR2 and MDR4 genes were investigated by real-time quantitative PCR (RT-qPCR) analysis, given the known interaction of the corresponding proteins with antifungals and with the efflux blocker FK506. The expression of the PDR1, MDR1, MDR2 and MDR4 genes was 2-4 times higher in the TRF resistant strain grown in the presence of 0.14 ug/mL of TRF than in TRF susceptible strains cultured in the absence of TRF. The TRF-resistant strain exhibited MICs of > 32 ug/mL for TRF alone; this resistance was attenuated to an MIC of 8 ug/mL in the presence of FK506, indicating that the TRF inhibitory concentration index value was < 0.75. The additive effect of the efflux blocker FK506 on TRF resistance was detected in the TRF-resistant strain. These results indicated that the TRF resistance in this strain reflects overexpression of genes encoding ABC transporter proteins. PMID- 29340911 TI - Prevalence of Sexual Violence and its Association with Depression among Male and Female Patients with Risky Drug Use in Urban Federally Qualified Health Centers. AB - Sexual violence (SV) is common; however, the prevalence of SV and its long term sequela vary geographically and among subpopulations within the USA. As such, the aims of this study are the following: (1) to determine the prevalence of SV, (2) to identify correlates of SV, and (3) to determine if SV is associated with depression among male and female risky drug users in urban Federally Qualified Health Centers (FQHCs) in Los Angeles. This study includes adult patients of five urban FQHCs who self-reported risky drug use. We identified survivors of SV and those experiencing depression through survey questions that queried, before or after age 18, "Were you ever sexually assaulted, molested or raped?" and with the RAND Mental Health Index (MHI-5). We utilized Pearson's chi-square tests to assess predictors of SV and logistic regression to assess for an association between SV and depression. Data collection took place from February 2011 to November 2012. Of the 334 study patients, 49% of females and 25% of males reported surviving SV. Exposure to SV, (both before 18 years of age and after 18 years of age) was the strongest predictor of depression among men and women in this study (OR 4.7, p < 0.05). These data demonstrate that sexual violence is prevalent in this urban FQHC population and is strongly associated with depression. Providers should consider screening both men and women with risky drug use for SV while health systems should continue to align mental health and primary care services to appropriately care for these extremely vulnerable patients. Trial Registration Clinical Trials. gov ID NCT01942876, Protocol ID DESPR DA022445, http://www.clinicaltrials.gov. PMID- 29340912 TI - Predictors of hypoglycemia in hospitalized patients with diabetes mellitus. AB - Hypoglycemia is common among hospitalized patients with diabetes mellitus (DM), and is associated with increased morbidity and mortality. Identify pre-admission risk factors associated with in-hospital hypoglycemia. Historical prospectively collected data of adult DM patients hospitalized to medical wards between 2011 and 2013. Hypoglycemia and serious hypoglycemia were defined as at least one blood glucose measurement <= 70 and < 54 mg/dl, respectively, during hospitalization. The primary outcome was in-hospital hypoglycemia. The cohort included 5301 patients (mean age 73 +/- 13 years, 51% male), including 792 patients (15%) with hypoglycemia, among them 392 patients (7%) with serious hypoglycemia. Patients with hypoglycemia or serious hypoglycemia during hospitalization were older, compared to patients without hypoglycemia and more likely to have chronic renal failure and cerebrovascular disease. Malignancy and female gender were risk factors for hypoglycemia, but not for serious hypoglycemia, while congestive heart failure was associated with increased risk only for serious hypoglycemia. Diabetes mellitus' duration over 10 years was associated with an almost threefold increased risk for hypoglycemia, compared to DM duration less than a year. Insulin treatment and glycated hemoglobin > 9% were also more common in patients with hypoglycemia. Insulin treatment was associated with a fourfold increase in the risk for hypoglycemia among all glycated hemoglobin categories. Our results identified several risk factors for in hospital hypoglycemia in patients with DM. These findings may lead to appropriate monitoring and early intervention to prevent hypoglycemia and to reduce morbidity and mortality associated with in-hospital hypoglycemia. PMID- 29340913 TI - A Randomized Pilot Trial of a Novel Behavioral Intervention for Chronic Pain Tailored to Individuals with HIV. AB - Chronic pain is an important and understudied comorbidity in people living with HIV (PLWH). We conducted a pilot trial of Skills TO Manage Pain (STOMP), an innovative social cognitive theory-based pain self-management intervention tailored to PLWH, to assess feasibility, acceptability, and preliminary efficacy. Eligibility criteria included being HIV+, >= moderate pain for >= 3 months and a score of >= 4 on the three-item PEG pain severity and interference scale. Participants were randomized in a 1:1 fashion to STOMP or a usual care comparison. Among 22 participants randomized to STOMP, median session attendance was 9/12 (75%). Of 19 STOMP participants surveyed, 13 reported being "much better" overall since beginning treatment. Brief pain inventory-total scores decreased by 2 points in the intervention group and 0.9 in the control group (p = 0.11). STOMP is feasible, acceptable, and shows preliminary evidence of efficacy and promise for a full-scale trial. PMID- 29340915 TI - Primed and unprimed rebounding illusory apparent motion. AB - Although sequences of uncorrelated random dots can yield a wide range of illusorily coherent motion percepts (including translation, rotation, contraction, expansion, shear, and rebounding motion), past priming studies have relied on two-alternative forced choice tasks that only measure unidirectional (positive or negative) priming effects. In Experiment 1 we showed that when participants are primed with unidirectional motion and given an additional option to report bidirectional (rebounding) motion, they do so frequently, suggesting that unidirectional motion can "default" to a rebounding percept. Furthermore, rebounding percepts are more prevalent during trials with long frame durations, suggesting a role for attention in forming and maintaining these illusory percepts. In Experiment 2 we compared rebounding percepts that followed unidirectional, drifting primes with rebounding percepts that followed bidirectional, rebounding primes, and found that these two types of illusory rebounding motion percepts differ systematically in their temporal structures. We argue that rebounding percepts following drifting primes can be understood as a breakdown of positive priming into an underlying oscillatory state, whereas rebounding percepts following rebounding primes may be understood either as (1) the initialization of the same oscillatory process, or (2) the entrainment of a two-step motion pattern by a higher-order mechanism. PMID- 29340914 TI - Structural Effects on HIV Risk Among Youth: A Multi-level Analysis. AB - We proposed a multilevel model of structural influences on HIV-risky sexual partnerships in a diverse sample of 1793 youth residing in 23 states and the District of Columbia. We examined the influence of concentrated disadvantage, HIV stigma, and sexual and gender minority stigma on engagement in HIV risky sexual partnerships and whether youth's participation in opportunity structures, anticipation of HIV stigma, and perceptions of their community as youth supportive settings mediated structural effects. After controlling for age, HIV status, and race, we found structural HIV stigma had deleterious indirect effects on youth's participation in HIV-risky sexual partnerships. Concentrated disadvantage and structural sexual and gender minority stigma had direct negative effects on youth's perceptions of their communities as supportive and on their participation in prosocial activity. Support perceptions had direct, protective effects on avoidance of HIV-risky sexual partnerships. Structural stigma undermines youth's belief that their communities invest in their safety and well being. PMID- 29340916 TI - Trapped in a tight spot: Scaling effects occur when, according to the action specific account, they should not, and fail to occur when they should. AB - The action-specific account of perception claims that what we see is perceptually scaled according to our action capacity. However, it has been argued that this account relies on an overly confirmatory research strategy-predicting the presence of, and then finding, an effect (Firestone & Scholl, 2014). A comprehensive approach should also test disconfirmatory predictions, in which no effect is expected. In two experiments, we tested one such prediction based on the action-specific account, namely that scaling effects should occur only when participants intend to act (Witt, Proffitt, & Epstein, 2005). All participants wore asymmetric gloves in which one glove was padded with extra material, so that one hand was wider than the other. Participants visually estimated the width of apertures. The action-specific account predicts that the apertures should be estimated as being narrower for the wider hand, but only when participants intend to act. We found this scaling effect when it should not have occurred (Exp. 1, for participants who did not intend to act), as well as no effect when it should have occurred (Exp. 2, for participants who intended to act but were given a cover story for the visibility and position of their hands). Thus, the cover story used in Experiment 2 eliminated the scaling effect found in Experiment 1. We suggest that the scaling effect observed in Experiment 1 likely resulted from demand characteristics associated with using a salient, unexplained manipulation (e.g., telling people which hand to use to do the task). Our results suggest that the action-specific account lacks predictive power. PMID- 29340917 TI - Biliary Bypass with Laparoscopic Choledochoduodenostomy. AB - Laparoscopic choledochoduodenostomy (LCDD) is employed to treat many benign biliary diseases when endoscopic or percutaneous techniques are not feasible. We describe our technique for LCDD, which utilizes common bile duct transection and an end-to-side biliary-enteric anastomosis. This procedure includes the following elements: isolation and transection of the common bile duct, mobilization of the duodenum (Kocher maneuver), inspection of the common bile duct, and end-to-side biliary-enteric anastomosis. Key details and pitfalls are discussed. Over a 5 year period, LCDD was performed on 18 patients. Indications included intractable abdominal pain (10) and choledocholithiasis (8). The majority of patients, 83%, tolerated the operation well with no complications. There was one postoperative intra-abdominal abscess and two anastomotic strictures, one in the immediate postoperative period and the other 9 months after the operation. The median length of stay was 4 days (IQR 3.0-5.3), and there was minimal blood loss. Based on our experience, LCDD with transection and end-to-side biliary-enteric anastomosis is a safe and effective biliary bypass technique. PMID- 29340919 TI - No-Touch Concept Is Invalid for Left-Dominant Perihilar Cholangiocarcinoma. PMID- 29340918 TI - Validation of AAST EGS Grade for Acute Pancreatitis. AB - BACKGROUND: The AAST recently developed an emergency general surgery (EGS) disease grading system to measure anatomic severity. We aimed to validate this grading system for acute pancreatitis and compare cross sectional imaging-based AAST EGS grade and compare with several clinical prediction models. We hypothesize that increased AAST EGS grade would be associated with important physiological and clinical outcomes and is comparable to other severity grading methods. METHODS: Single institution retrospective review of adult patients admitted with acute pancreatitis during 10/2014-1/2016 was performed. Patients without imaging were excluded. Imaging, operative, and pathological AAST grades were assigned by two reviewers. Summary and univariate analyses were performed. AUROC analysis was performed comparing AAST EGS grade with other severity scoring systems. RESULTS: There were 297 patients with a mean (+/-SD) age of 55 +/- 17 years; 60% were male. Gallstone pancreatitis was the most common etiology (28%). The overall complication, mortality, and ICU admission rates were 51, 1.3, and 25%, respectively. The AAST EGS imaging grade was comparable to other severity scoring systems that required multifactorial data for readmission, mortality, and length of stay. CONCLUSIONS: The AAST EGS grade for acute pancreatitis demonstrates initial validity; patients with increasing AAST EGS grade demonstrated longer hospital and ICU stays, and increased rates of readmission. AAST EGS grades assigned using cross sectional imaging findings were comparable to other severity scoring systems. Further studies should determine the generalizability of the AAST system. LEVEL OF EVIDENCE: IV Study Type: Single institutional retrospective review. PMID- 29340920 TI - Pure Laparoscopic Transhepatic Enucleation of a Mucinous Cystic Neoplasm Abutting the Major Hepatic Veins at the Hepatocaval Confluence (with Video). AB - BACKGROUND: A mucinous cystic neoplasm (MCN) of the liver is a rare disease entity, occurring predominantly in the left hemiliver as reported by Simo et al.1 Thomas et al.2 and Vogt et al.3 Surgical resection of tumors at the hepatocaval confluence is a technically demanding procedure. Enucleation procedures have been performed for the management of benign or premalignant lesions such as cystic tumors as previously described by Thomas et al.2 and Vogt et al.3. We present a patient who underwent pure laparoscopic transhepatic enucleation to treat a MCN abutting the major hepatic veins at the hepatocaval confluence. METHODS: We treated a 77-year-old man who presented with a 5-cm-sized cystic mass at the hepatocaval confluence. Using the Pringle maneuver, we performed liver parenchymal transection along the junction between the origin of the middle hepatic vein (MHV) and the inferior vena cava (IVC) as reported by Kim4. The MHV formed the left-sided boundary of the cystic mass. After dissection of the left boundary of the cystic wall, the dorsal side of the cystic mass was carefully dissected. Liver parenchymal transection was continued up to the right hepatic vein (RHV). Laparoscopic enucleation was performed to expose the RHV and MHV, as well as the IVC. RESULTS: The operation time was 270 min, the estimated blood loss was 80 mL, and no transfusion was necessary in this patient. The final histopathological diagnosis of the mass was MCN. Postoperatively, the patient recovered uneventfully, and he was discharged on postoperative day 5. CONCLUSIONS: Laparoscopic transhepatic enucleation for MCNs at the hepatocaval confluence is technically feasible and offers the benefits of a parenchyma sparing resection. However, this procedure requires a high level of technical skills and shows a steep learning curve. PMID- 29340921 TI - Hepatic Paragonimiasis Mimicking Hepatocellular Carcinoma. AB - Paragonimiasis is a parasitic lung infection caused by lung flukes of the genus Paragonimus. Ectopic infection may occur but rarely involves the liver. Here, we report a case of hepatic paragonimiasis in a Chinese man who was initially suspected to have hepatocellular carcinoma. He had been previously diagnosed with chronic hepatitis B. No specific symptoms or abnormal blood test results were observed, except for a significant rise in serum alfa-fetoprotein. Magnetic resonance imaging revealed a 12-cm mass with inhomogeneous signal intensity at the left lobe of the liver. Laparoscopic left hemihepatectomy was performed. He was finally diagnosed as hepatic paragonimiasis upon pathological examination and antibody serology. The postoperative course was uneventful. He received a standard course of praziquantel and recovered well. Our case is unique in its tumor-like characteristic and protrudes the difficulty of differential diagnosis with both benignant and malignant hepatic diseases by imaging studies or non specific symptoms. Hepatic paragonimiasis is unusual; however, it should be considered in the differential diagnosis of liver malignancy by clinicians. PMID- 29340922 TI - Prevention of Internal Hernia During Robotic Total Gastrectomy for Gastric Cancer. AB - BACKGROUND: Postoperative internal hernia (IH) is a potentially life-threatening acute protrusion of viscus through an iatrogenic mesenteric defect. In our retrospective study of 1943 consecutive gastric cancer (GC) patients who had undergone surgery, the incidence of IH after laparoscopic total gastrectomy (LTG) was 4.9%.1 This high incidence seems to be caused by decreased adhesion formation after LTG. There is no consensus regarding orifice management during robotic total gastrectomy (RTG). We therefore developed a new procedure for IH prevention during RTG. METHODS: We performed RTG with antecolic Roux-en-Y reconstruction using the da Vinci S system (Intuitive, Sunnyvale, CA). We chose an intracorporeal side-to-side esophagojejunostomy (overlap method).2 First, mesenteric defect of jejunojejunostomy was closed under direct vision following retrieval of the stomach. Second, the esophagus hiatus and Petersen's defect were closed under laparoscopic vision using robotic suture.3 Finally, the duodenal stump and the Roux limb were fixed to prevent torsion of the Roux limb. RESULTS: We performed this procedure on five patients between May and October 2017. The median duration of surgery was 395 min (range, 319-442 min), median bleeding was 60 ml (range, 35-140 ml). There were no anastomosis-related complications higher than Clavien-Dindo grade II in any patients.4 Although the follow-up period is less than 1 year, no IH after RTG has been observed in any patients. CONCLUSION: Regarding short-term surgical outcomes, this procedure is recommended for GC patients who undergo RTG. However, more long-term follow-up for patients who have undergone RTG with closure of all mesenteric defects is required. PMID- 29340923 TI - CT Features of Calcifying Fibrous Tumor of the Stomach. PMID- 29340924 TI - Impact of Preoperative Opioid Use After Emergency General Surgery. AB - BACKGROUND: Preoperative exposure to narcotics has recently been associated with poor outcomes after elective major surgery, but little is known as to how preoperative opioid use impacts outcomes after common, emergency general surgical procedures (EGS). METHODS: A high-volume, single-center analysis was performed on patients who underwent EGS from 2012 to 2013. EGS was defined as the seven emergent operations that account for 80% of the national burden. Preoperative opioid use was defined as having an active opioid prescription within 7 days prior to surgery. Chronic opioid use was defined as having an opioid prescription concurrent with 90 days after discharge. RESULTS: A total of 377 patients underwent EGS during the study period. Preoperative opioid use was present in 84 patients (22.3%). Preoperative opioid users had longer hospital LOS (10.5 vs 6 days), higher costs of care ($25,331 vs $11,454), and higher 30-day readmission rates (22.6 vs 8.2%) compared with opioid-naive patients (p < 0.001 each). After covariate adjustment, preoperative opioid use was predictive of LOS (RR 1.19 [1.01-1.41]) and 30-day hospital readmission (OR 2.69 [1.25-5.75]) (p < 0.05 each). Total direct cost was not different after modeling. Preoperative opioid users required more narcotic refills compared with opioid-naive patients (5 vs 0 refills, p < 0.001). After discharge, 15.4% of opioid-naive patients met criteria for chronic opioid use, vs 77.4% in preoperative opioid users (p < 0.001). CONCLUSIONS: Preoperative opioid use is associated with greater resource utilization after emergency general surgery, as well as vastly different postoperative opioid prescription patterns. These findings may help to inform the impact of preoperative opioid use on patient care, and its implications on hospital and societal cost. PMID- 29340925 TI - Response to Letter to the Editor on "Utility of Endoanal Ultrasonography in Assessment of Primary and Recurrent Anal Fistulas and for Detection of Associated Anal Sphincter Defects". PMID- 29340926 TI - Gastrointestinal histoplasmosis ileal stricture successfully treated with through the-scope balloon dilation in a patient with hyperimmunoglobulin M syndrome. AB - Gastrointestinal histoplasmosis is common in patients with disseminated disease affecting both immunocompetent and immunocompromised patients. However, it is often unrecognized due to a lack of specific signs and symptoms. It has only rarely been reported to cause small bowel obstruction, during which surgical treatment was nearly always necessary. Little is known about the usefulness of endoscopic therapy in gastrointestinal histoplasmosis associated strictures. We report the case of a 32-year-old man with a history of hyperimmunoglobulin M syndrome who presented with small bowel obstruction secondary to disseminated gastrointestinal histoplasmosis. Treatment was successful with a through-the scope balloon dilator in combination with medical therapy. This report adds to the limited data available on the benefit of endoscopic therapy in infectious strictures, particularly gastrointestinal histoplasmosis. PMID- 29340927 TI - Achalasia Cardia in a Young Infant. AB - Achalasia cardia is an esophageal motility disorder rarely reported in children and more so in young infants. Common clinical presentations include vomiting, dysphagia, regurgitation, recurrent pulmonary aspiration and failure to thrive. Diagnosis is made by barium swallow study and esophageal manometry, which is the gold standard test. Pharmocological management and endotherapy often fails and results in recurrence of symptoms. Laparoscopic Hellers myotomy, with or without anti-reflux procedure is the standard treatment of choice for children. Per-oral endoscopic myotomy is utilized for treatment of achalasia in adults, but its safety, efficacy, and feasibility is not studied in children. PMID- 29340930 TI - The Microbiome and Neurologic Disease: Past and Future of a 2-Way Interaction. PMID- 29340928 TI - Microbiota Signaling Pathways that Influence Neurologic Disease. AB - Though seemingly distinct and autonomous, emerging evidence suggests there is a bidirectional interaction between the intestinal microbiota and the brain. This crosstalk may play a substantial role in neurologic diseases, including anxiety, depression, autism, multiple sclerosis, Parkinson's disease, and, potentially, Alzheimer's disease. Long hypothesized by Metchnikoff and others well over 100 years ago, investigations into the mind-microbe axis is now seeing a rapid resurgence of research. If specific pathways and mechanisms of interaction are understood, it could have broad therapeutic potential, as the microbiome is environmentally acquired and can be modified to promote health. This review will discuss immune, endocrine, and neural system pathways that interconnect the gut microbiota to central nervous system and discuss how these findings might be applied to neurologic disease. PMID- 29340931 TI - VascuTrainer: A Mobile and Disposable Bioreactor System for the Conditioning of Tissue-Engineered Vascular Grafts. AB - In vitro tissue engineering of vascular grafts requires dynamic conditioning in a bioreactor system for in vitro tissue maturation and remodeling to receive a mechanically adequate and hemocompatible implant. The goal of the current work was to develop a bioreactor system for the conditioning of vascular grafts which is (i) able to create a wide range of flow, pressure and frequency conditions, including physiological ones; (ii) compact and easy to assemble; (iii) transportable; (iv) disposable. The system is driven by a small centrifugal pump controlled via a custom-made control unit, which can also be operated on batteries to allow for autonomous transportation. To show the potential of the newly developed bioreactor system small-caliber vascular composite grafts (n = 5, internal diameter = 3 mm, length = 12.5 cm) were fabricated using a fibrin scaffold embedding human umbilical artery smooth muscle cells and a polyvinylidene fluoride warp-knitted macroporous mesh. Subsequently, the vascular grafts were endothelialized and mounted in the bioreactor system for conditioning. The conditioning parameters remained within the predefined range over the complete conditioning period and during operation on batteries as tested for up to 25 h. Fabrication and pre-conditioning under arterial pressure and shear stress conditions resulted in robust and hemocompatible tissue-engineered vascular grafts. Analysis of immunohistochemical stainings against extracellular matrix and cell-specific proteins revealed collagen I and collagen III deposition. The luminal surface was confluently covered with endothelial cells. The developed bioreactor system showed cytocompatibility and pH, pO2, pCO2, glucose and lactate stayed constant. Sterility was maintained during the complete fabrication process of the vascular grafts. The potential of a versatile and mobile system and its functionality by conditioning tissue-engineered vascular grafts under physiological pressure and flow conditions could be demonstrated. PMID- 29340932 TI - Robotic Scanning Device for Intraoperative Thyroid Gland Endomicroscopy. AB - Probe-based confocal laser endomicroscopy has a high potential to be a promising tool that can provide intraoperative high-resolution in vivo morphological imaging at cellular and subcellular levels for thyroidectomy, and allow real-time assessment of tumor margins. However, the typical images acquired with this technique cover a very small area limited by the field of view of the probe, accompanied by tissue deformation and inconsistent probe-tissue contact when operated manually. In this paper, a novel compact robotic device for large area scanning has been developed. The device can scan a large surface in a spiral trajectory by rotating the tip frame along the spiral groove of the base frame. The fiber Bragg grating sensor with a passive linear structure is used to detect and maintain a stable probe-tissue contact force during scanning. An active linear actuation is also integrated for adjusting the probe-tissue contact level prior to each scan. Results demonstrate that the scanning device ensures a suitable probe-tissue contact force and compensates for simulated hand tremor. Mosaicing results of lens tissue paper and porcine belly tissue with both bench and hand-held experiments show the effectiveness and usability of the device, demonstrating the potential clinical value of the system. PMID- 29340933 TI - Forces Generated by Vastus Lateralis and Vastus Medialis Decrease with Increasing Stair Descent Speed. AB - Stair descent (SD) is a common, difficult task for populations who are elderly or have orthopaedic pathologies. Joint torques of young, healthy populations during SD increase at the hip and ankle with increasing speed but not at the knee, contrasting torque patterns during gait. To better understand the sources of the knee torque pattern, we used dynamic simulations to estimate knee muscle forces and how they modulate center of mass (COM) acceleration across SD speeds (slow, self-selected, and fast) in young, healthy adults. The vastus lateralis and vastus medialis forces decreased from slow to self-selected speeds as the individual lowered to the next step. Since the vasti are primary contributors to vertical support during SD, they produced lower forces at faster speeds due to the lower need for vertical COM support observed at faster speeds. In contrast, the semimembranosus and rectus femoris forces increased across successive speeds, allowing the semimembranosus to increase acceleration downward and forward and the rectus femoris to provide more vertical support and resistance to forward progression as SD speed increased. These results demonstrate the utility of dynamic simulations to extend beyond traditional inverse dynamics analyses to gain further insight into muscle mechanisms during tasks like SD. PMID- 29340929 TI - S-Adenosyl Methionine and Transmethylation Pathways in Neuropsychiatric Diseases Throughout Life. AB - S-Adenosyl methionine (SAMe), as a major methyl donor, exerts its influence on central nervous system function through cellular transmethylation pathways, including the methylation of DNA, histones, protein phosphatase 2A, and several catecholamine moieties. Based on available evidence, this review focuses on the lifelong range of severe neuropsychiatric and neurodegenerative diseases and their associated neuropathologies, which have been linked to the deficiency/load of SAMe production or/and the disturbance in transmethylation pathways. Also included in this review are the present-day applications of SAMe in the treatment in these diseases in each age group. PMID- 29340934 TI - Impact Force, Polar Gap and Modal Parameters Predict Acetabular Cup Fixation: A Study on a Composite Bone. AB - The balanced initial fixation of an implant makes up a crucial condition for its long-term survival. However, the quantification of initial fixation is no easy task and, to date, only qualitative assessments can be made. Although the concept of measuring fixation by means of vibration analysis is already widely used in dental implantology, the rigorous application of this method for the assessment of the fixation of femoral and acetabular components remains a challenge. Moreover, most studies on this subject have tended to focus solely on the femoral stem even though acetabular cup fixation is also important and even more difficult with respect to qualitative measurement. This study describes a comprehensive experiment aimed at assessing acetabular cup fixation. Fixation is expressed in terms of the impact force and polar gap variables, which are correlated with the modal properties of the acetabular implant during the various insertion stages. The predictive capabilities of modal frequencies and frequency functions were investigated by means of surrogate models based on the Gaussian process and functional principal component analysis. The prediction accuracy of the proposed models was in the range 82-94%. The results indicate that natural frequencies, reduced frequency, impact force and polar gap features provide great potential in terms of the prediction of implant fixation. PMID- 29340935 TI - Endoscopic Treatments of GERD. AB - OPINION STATEMENT: PURPOSE OF REVIEW: Endoscopic therapies for gastroesophageal reflux disease (GERD) are minimally invasive techniques which fill the gap between the medical therapy with proton pump inhibitors (PPIs) and surgical fundoplication. The main endoscopic therapies currently available in the USA are transoral incisionless fundoplication (TIF) using EsophyX device or less commonly, Medigus Ultrasonic Surgical Endostapler, and radiofrequency energy delivery to lower esophageal sphincter using Stretta device. Our aim was to examine the available evidence for these therapies. RECENT FINDINGS: Consistent evidence for subjective improvement is available for fundoplication using EsophyX and Stretta, but improvement in objective parameters for GERD is not seen or evaluated in all the studies. There is a reduction in long-term efficacy seen with TIF and also to a lesser extent with Stretta. Endoscopic therapies do not replace surgical fundoplication and therefore are useful in patients with breakthrough symptoms on PPI such as regurgitation or those reluctant to take long-term PPI. An ideal patient is one who has symptoms and objective evidence of GERD such as abnormal pH study or erosive esophagitis without any significant anatomic distortion such as a hiatal hernia. Since these are endoluminal procedures, they do not address the hiatal hernia reduction or repair of crural defect. Adequate training in the technique and careful patient selection are essential prior to embarking on these procedures. PMID- 29340936 TI - Application of Color Transformation Techniques in Pediatric Spinal Cord MR Images: Typically Developing and Spinal Cord Injury Population. AB - The purpose of this study was to evaluate an improved and reliable visualization method for pediatric spinal cord MR images in healthy subjects and patients with spinal cord injury (SCI). A total of 15 pediatric volunteers (10 healthy subjects and 5 subjects with cervical SCI) with a mean age of 11.41 years (range 8-16 years) were recruited and scanned using a 3.0T Siemens Verio MR scanner. T2 weighted axial images were acquired covering entire cervical spinal cord level C1 to C7. These gray-scale images were then converted to color images by using five different techniques including hue-saturation-value (HSV), rainbow, red-green blue (RGB), and two enhanced RGB techniques using automated contrast stretching and intensity inhomogeneity correction. Performance of these techniques was scored visually by two neuroradiologists within three selected cervical spinal cord intervertebral disk levels (C2-C3, C4-C5, and C6-C7) and quantified using signal to noise ratio (SNR) and contrast to noise ratio (CNR). Qualitative and quantitative evaluation of the color images shows consistent improvement across all the healthy and SCI subjects over conventional gray-scale T2-weighted gradient echo (GRE) images. Inter-observer reliability test showed moderate to strong intra-class correlation (ICC) coefficients in the proposed techniques (ICC > 0.73). The results suggest that the color images could be used for quantification and enhanced visualization of the spinal cord structures in addition to the conventional gray-scale images. This would immensely help towards improved delineation of the gray/white and CSF structures and further aid towards accurate manual or automatic drawings of region of interests (ROIs). PMID- 29340937 TI - Association between Electronic Medical Record Implementation of Default Opioid Prescription Quantities and Prescribing Behavior in Two Emergency Departments. PMID- 29340939 TI - The Influence of Financial Strain on Health Decision-Making. PMID- 29340938 TI - Pharmacologic Treatment of Hypertensive Urgency in the Outpatient Setting: A Systematic Review. AB - BACKGROUND: Hypertensive urgency (HU), defined as acute severe uncontrolled hypertension without end-organ damage, is a common condition. Despite its association with long-term morbidity and mortality, guidance regarding immediate management is sparse. Our objective was to summarize the evidence examining the effects of antihypertensive medications to treat. METHODS: We searched the PubMed, Cochrane Central Register of Controlled Trials (CENTRAL), Database of Abstracts of Reviews of Effects (DARE), Cochrane Database of Systematic Reviews, Web of Science, Google Scholar, and Embase through May 2016. STUDY SELECTION: We evaluated prospective controlled clinical trials, case-control studies, and cohort studies of HU in emergency room (ER) or clinic settings. We initially identified 11,223 published articles. We reviewed 10,748 titles and abstracts and identified 538 eligible articles. We assessed the full text for eligibility and included 31 articles written in English that were clinical trials or cohort studies and provided blood pressure data within 48 h of treatment. Studies were appraised for risk of bias using components recommended by the Cochrane Collaboration. The main outcome measured was blood pressure change with antihypertensive medications. Since studies were too diverse both clinically and methodologically to combine in a meta-analysis, tabular data and a narrative synthesis of studies are presented. RESULTS: We identified only 20 double-blind randomized controlled trials and 12 cohort studies, with 262 participants in prospective controlled trials. However, we could not pool the results of studies. In addition, comorbidities and their potential contribution to long-term treatment of these subjects were not adequately addressed in any of the reviewed studies. CONCLUSIONS: Longitudinal studies are still needed to determine how best to lower blood pressure in patients with HU. Longer-term management of individuals who have experienced HU continues to be an area requiring further study, especially as applicable to care from the generalist. PMID- 29340940 TI - Characterizing Potentially Preventable Admissions: A Mixed Methods Study of Rates, Associated Factors, Outcomes, and Physician Decision-Making. AB - BACKGROUND: Potentially preventable admissions are a target for healthcare cost containment. OBJECTIVE: To identify rates of, characterize associations with, and explore physician decision-making around potentially preventable admissions. DESIGN: A comparative cohort study was used to determine rates of potentially preventable admissions and to identify associated factors and patient outcomes. A qualitative case study was used to explore physicians' clinical decision-making. PARTICIPANTS: Patients admitted from the emergency department (ED) to the general medicine (GM) service over a total of 4 weeks were included as cases (N = 401). Physicians from both emergency medicine (EM) and GM that were involved in the cases were included (N = 82). APPROACH: Physicians categorized admissions as potentially preventable. We examined differences in patient characteristics, admission characteristics, and patient outcomes between potentially preventable and control admissions. Interviews with participating physicians were conducted and transcribed. Transcriptions were systematically analyzed for key concepts regarding potentially preventable admissions. KEY RESULTS: EM and GM physicians categorized 22.2% (90/401) of admissions as potentially preventable. There were no significant differences between potentially preventable and control admissions in patient or admission characteristics. Potentially preventable admissions had shorter length of stay (2.1 vs. 3.6 days, p < 0.001). There was no difference in other patient outcomes. Physicians discussed several provider, system, and patient factors that affected clinical decision-making around potentially preventable admissions, particularly in the "gray zone," including risk of deterioration at home, the risk of hospitalization, the cost to the patient, and the presence of outpatient resources. Differences in provider training, risk assessment, and provider understanding of outpatient access accounted for differences in decisions between EM and GM physicians. CONCLUSIONS: Collaboration between EM and GM physicians around patients in the gray zone, focusing on patient risk, cost, and outpatient resources, may provide an avenues for reducing potentially preventable admissions and lowering healthcare spending. PMID- 29340941 TI - Internal Medicine Residents' Attitudes Toward Simulated Depressed Cardiac Patients During an Objective Structured Clinical Examination: A Randomized Study. AB - BACKGROUND: Physician biases toward mental conditions such as depression have been shown to adversely affect medical outcomes. OBJECTIVE: To explore the relationship between residents' explicit bias toward depressed patients and their clinical skills on a cardiac case during an objective structured clinical exam (OSCE). DESIGN: Prospective parallel randomized controlled study. PARTICIPANTS: One hundred eighty-five internal medicine residents from three residency programs in two states. INTERVENTION: During October-November 2015, residents were randomized to either a depressed or non-depressed standardized patient (SP) presenting with acute chest pain. MAIN MEASURES: The Medical Condition Regard Scale (MCRS) assessed residents' explicit bias toward patients with depression. Their clinical skills (history-taking, physical examination, patient counseling, patient-physician interaction (PPI), differential diagnosis, and workup plan) and facial expressions were rated during an OSCE. KEY RESULTS: No significant relationships were found between resident explicit bias and clinical skill measurements. Residents who examined the depressed SP scored lower, on average, on history-taking (t [183] = -2.77, p < 0.01, Cohen's d = 0.41) and higher on PPI (t [183] = 2.24, p < 0.05, Cohen's d = 0.33) than residents examining the non depressed SP. There were no differences, on average, between stations on physical examination, counseling, correct diagnosis, workup plan, or overall SP satisfaction. Facial recognition software demonstrated that residents with a non depressed SP had more neutral expressions than depressed-SP residents (t [133] = 2.46, p < 0.05, Cohen's d = 0.46), and residents with a depressed SP had more disgusted expressions than non-depressed-SP residents (t [83.52] = 2.10, p < 0.05, Cohen's d = 0.28). CONCLUSIONS: Extrinsic bias did not predict OSCE performance in this study. Some differences were noted in the OSCE performance between the two stations. Further study is needed to examine the effects of patient mental health conditions on physician examination procedures, diagnostic behaviors, and patient outcomes. PMID- 29340942 TI - Gluteal Augmentation-Associated Mycobacterial Infection. PMID- 29340943 TI - A prospective investigation of rumination and executive control in predicting overgeneral autobiographical memory in adolescence. AB - The CaR-FA-X model (Williams et al., 2007), or capture and rumination (CaR), functional avoidance (FA), and impaired executive control (X), is a model of overgeneral autobiographical memory (OGM). Two mechanisms of the model, rumination and executive control, were examined in isolation and in interaction in order to investigate OGM over time. Across two time points, six months apart, a total of 149 adolescents (13-16 years) completed the minimal-instruction autobiographical memory test, a measure of executive control with both emotional and nonemotional stimuli, and measures of brooding rumination and reflective pondering. The results showed that executive control for emotional information was negatively associated with OGM, but only when reflective pondering levels were high. Therefore, in the context of higher levels of reflective pondering, greater switch costs (i.e., lower executive control) when processing emotional information predicted a decrease in OGM over time. PMID- 29340944 TI - Persons with disability, social deprivation and an emergency medical admission. AB - BACKGROUND: The community level of disability and social deprivation may result in an emergency hospitalisation; we have examined the annual admission incidence rate for emergency medical conditions in relation to the community prevalence of such factors. METHODS: All emergency medical admissions (96,305 episodes in 50,612 patients) within the institution's catchment area were examined between 2002 and 2016. The frequency of disability, level of full-time carers and unemployment for the 74 electoral divisions of the catchment area was regressed against admission rates; incidence rate ratios (IRR) were calculated using truncated Poisson regression. RESULTS: Disability was present in 12.1% of the catchment area population (95% CI = 9.7-15.0). The annual admission incidence rates/1000 population across disability quintiles for the more affluent areas increased from Q1 7.6 (95% CI = 7.4-7.8) to Q5 27.3 (95% CI = 27.0-27.5) and for the more deprived area from Q1 16.6 (95% CI = 16.4, 16.8) to and Q5 40.4 (95% CI = 40.1-40.7). Disability status influenced the overall admission IRR (compared with Q1/Q3) for Q4/Q5 1.11 (95% CI = 1.09-1.13) showing an increased rate of hospitalisation for the more deprived areas. Community disability levels interacted with local area unemployment and frequency of full-time carers; as they increased, a linear relationship between disability and the admission rate incidence was demonstrated. CONCLUSION: Local catchment area disability prevalence rates in addition to social deprivation factors are an important determinant of the annual incidence rate of emergency medical admissions. PMID- 29340945 TI - Electromagnetic induction sensor for dynamic testing of coagulation process. AB - With the increasing demand for coagulation POCT for patients in the surgery department or the ICU, rapid coagulation testing techniques and methods have drawn widespread attention from scholars and businessmen. This paper proposes the use of electromagnetic induction sensor probe for detection of dynamic process causing changes in the blood viscosity and density before and after coagulation based on the damped vibration principle, in order to evaluate the coagulation status. Utilizing the dynamic principle, the differential equation of vibration system comprising elastic support and electromagnetic induction device is established through sensor dynamic modeling. The structural parameters of elastic support are optimized, and the circular sheet spring is designed. Furthermore, harmonic response analysis and vibration fatigue coupling analysis are performed on the elastic support of the sensor by considering the natural frequency of the system, and the electromagnetic induction sensor testing device is set up. Using the device and coagulation reagent, the standard curve for coagulation POCT is plotted, and the blood sample application in clinical patients is established, which are methodologically compared with the imported POCT coagulation analyzer. The results show that the sensor designed in this paper has a first-order natural frequency of 11.368 Hz, which can withstand 5.295 * 102 million times of compressions and rebounds. Its correlation with the results of SONOCLOT analyzer reaches 0.996, and the reproducibility 0.002. The electromagnetic induction coagulation testing sensor designed has good elasticity and anti-fatigue, which can meet the accuracy requirement of clinical detection. This study provides the core technology for developing the electromagnetic induction POCT instrument for dynamic testing of coagulation process. PMID- 29340946 TI - Standardisation of shielding of medical X-ray installations. PMID- 29340947 TI - The impact of depuration on mussel hepatopancreas bacteriome composition and predicted metagenome. AB - Due to the rapid elimination of bacteria through normal behaviour of filter feeding and excretion, the decontamination of hazardous contaminating bacteria from shellfish is performed by depuration. This process, under conditions that maximize shellfish filtering activity, is a useful method to eliminate microorganisms from bivalves. The microbiota composition in bivalves reflects that of the environment of harvesting waters, so quite different bacteriomes would be expected in shellfish collected in different locations. Bacterial accumulation within molluscan shellfish occurs primarily in the hepatopancreas. In order to assess the effect of the depuration process on these different bacteriomes, in this work we used 16S RNA pyrosequencing and metagenome prediction to assess the impact of 15 h of depuration on the whole hepatopancreas bacteriome of mussels collected in three different locations. PMID- 29340948 TI - A Case of Concomitant Pemphigus Foliaceus and Oral Pemphigus Vulgaris. AB - Pemphigus is a chronic autoimmune condition that can affect multiple areas of the body. The two main subtypes of pemphigus are pemphigus vulgaris (PV) and pemphigus foliaceus (PF) which can rarely occur concurrently or even transition from one to the other. The process of transition may be explained by qualitative changes in desmoglein autoantibody profile. We present a rare case of concomitant PF and oral PV and explore the literature on transitions between pemphigus subtypes and whether this case could represent a transition from PF to PV. Furthermore, the realities of multidisciplinary patient management are discussed. PMID- 29340949 TI - Hybrid Central Odontogenic Fibroma/Central Giant Cell Lesion: A Missing Report. PMID- 29340950 TI - Dermatologic Lesions Submitted to an Oral and Maxillofacial Pathology Biopsy Service: An Analysis of 2487 Cases. AB - Skin lesions are often submitted to oral and maxillofacial pathology practices. The purpose of this study is to evaluate the frequency, distribution, variability, and composition of dermatologic lesions within a large oral and maxillofacial pathology biopsy service. An IRB-approved retrospective search of skin lesions diagnosed at University of Florida oral and maxillofacial pathology biopsy service between 1994 and 2015 was performed. 2487 cases were included in the study. Gender was reported in 2466 cases, of which 59% were male and 41% female. Age was provided in 2367 cases and ranged from 2 weeks to 96 years with an average of 55 years. Location was indicated in 2473 cases. Lips were the most common (41.7%), followed by face (25.3%), neck (7.4%), nose (6.5%), periorbital (5.3%), ear (4.1%), and scalp (3.8%). Of the 2487 cases, five diagnoses (actinic keratosis/cheilitis, intradermal nevus, epidermal inclusion cyst, seborrheic keratosis, and basal cell carcinoma) constituted 84.4% of the cases. 69 of 2487 cases (2.8%) resulted in dermatopathologic consultation prior to final reporting. Skin lesions accounted for ~ 1.0% of all lesions submitted to an oral and maxillofacial pathology biopsy service. This study found a large variation in the dermatologic lesions submitted to an oral pathology biopsy service. Although most were routine in complexity, dermatopathology consultation was an important tool in the diagnosis of the more challenging cases. This study may help pathologists gain a better understanding of the frequency and variability of dermatologic lesions submitted to an oral and maxillofacial pathology biopsy service and promote more interdisciplinary consultation within the field. This study evaluated the incidence and scope of dermatologic lesions submitted to a large oral and maxillofacial pathology biopsy service over a long time period. A wide scope of lesions was found, and dermatopathology consultation was important to quality assurance. PMID- 29340952 TI - RFAthM6A: a new tool for predicting m6A sites in Arabidopsis thaliana. AB - KEY MESSAGE: We curated a reliable dataset of m6A sites in Arabidopsis thaliana, built competitive models for predicting m6A sites, extracted predominant rules from the prediction models and analyzed the most important features. In biological RNA, approximately 150 chemical modifications have been discovered, of which N6-methyladenine (m6A) is the most prevalent and abundant. This modification plays an essential role in a myriad of biological mechanisms and regulates RNA localization, nuclear export, translation, stability, alternative splicing, and other processes. However, m6A-seq and other wet-lab techniques do not easily facilitate accurate and complete determination of m6A sites across the transcriptome. Therefore, the use of computational methods to establish accurate models for predicting m6A sites is essential. In this work, we manually curated a reliable dataset of m6A sites and non-m6A sites and developed a new tool called RFAthM6A for predicting m6A sites in Arabidopsis thaliana. Briefly, RFAthM6A consists of four independent models named RFPSNSP, RFPSDSP, RFKSNPF and RFKNF and strict benchmarks show that the AUC values of the four models reached 0.894, 0.914, 0.920 and 0.926, respectively in a fivefold cross validation and the prediction performance of RFPSDSP, RFKSNPF and RFKNF exceeded that of three previously reported models (AthMethPre, M6ATH and RAM-NPPS). Linear combination of the prediction scores of RFPSDSP, RFKSNPF and RFKNF improved the prediction performance. We also extracted several predominant rules that underlie the m6A site identification from the trained models. Furthermore, the most important features of the predictors for the m6A site identification were also analyzed in depth. To facilitate use of our proposed models by interested researchers, all the source codes and datasets are publicly deposited at https://github.com/nongdaxiaofeng/RFAthM6A . PMID- 29340951 TI - A perspective on multi-target drug discovery and design for complex diseases. AB - Diseases of infection, of neurodegeneration (such as Alzheimer's and Parkinson's diseases), and of malignancy (cancers) have complex and varied causative factors. Modern drug discovery has the power to identify potential modulators for multiple targets from millions of compounds. Computational approaches allow the determination of the association of each compound with its target before chemical synthesis and biological testing is done. These approaches depend on the prior identification of clinically and biologically validated targets. This Perspective will focus on the molecular and computational approaches that underpin drug design by medicinal chemists to promote understanding and collaboration with clinical scientists. PMID- 29340953 TI - MdPIN1b encodes a putative auxin efflux carrier and has different expression patterns in BC and M9 apple rootstocks. AB - KEY MESSAGE: Lower promoter activity is closely associated with lower MdPIN1b expression in the M9 interstem, which might contribute to the dwarfing effect in apple trees. Apple trees grafted onto dwarfing rootstock Malling 9 (M9) produce dwarfing tree architecture with high yield and widely applying in production. Previously, we have reported that in Malus 'Red Fuji' (RF) trees growing on M9 interstem and Baleng Crab (BC) rootstock, IAA content was relatively higher in bark tissue of M9 interstem than that in scion or rootstock. As IAA polar transportation largely depends on the PIN-FORMED (PIN) auxin efflux carrier. Herein, we identify two putative auxin efflux carrier genes in Malus genus, MdPIN1a and MdPIN1b, which were closely related to the AtPIN1. We found that MdPIN1b was expressed preferentially in BC and M9, and the expression of MdPIN1b was significantly lower in the phloem of M9 interstem than that in the scion and rootstock. The distinct expression of MdPIN1b and IAA content were concentrated in the cambium and adjacent xylem or phloem, and MdPIN1b protein was localized on cell plasma membrane in onion epidermal cells transiently expressing 35S:MdPIN1b GFP fusion protein. Interestingly, an MdPIN1b mutant allele in the promoter region upstream of M9 exhibited decreased MdPIN1b expression compared to BC. MdPIN1b over-expressing interstem in tobacco exhibited increased polar auxin transport. It is proposed that natural allelic differences decreased promoter activity is closely associated with lower MdPIN1b expression in the M9 interstem, which might limit the basipetal transport of auxin, and in turn might contribute to the dwarfing effect. Taken together, these results reveal allelic variation underlying an important apple rootstock trait, and specifically a novel molecular genetic mechanism underlying dwarfing mechanism. PMID- 29340954 TI - The Cultural Epigenesis of Gender-Based Violence in Cambodia: Local and Buddhist Perspectives. AB - Almost one in four women in Cambodia is a victim of physical, emotional or sexual violence. The study aims to provide a comprehensive understanding of the ways in which Cambodians see its causes and effects and to identify and analyse the cultural forces that underpin and shape its landscape. An ethnographic study was carried out with 102 perpetrators and survivors of emotional, physical and sexual violence against women and 228 key informants from the Buddhist and healing sectors. Their views and experiences of it were recorded-the popular idioms expressed and the symptoms of distress experienced by survivors and perpetrators. From these results, the eight cultural forces, or cultural attractors, that are seen to propel a person to violence were identified. Violence stemmed from blighted endowment, or 'bad building' (salphamnaan min l?alphaalpha) determined by deeds in a previous life (kam). Children with a vicious character (kmeen kaac or dosa-carita) might grow to be abusers, and particular birthmarks on boys were thought to be portents. Krupsiloneh, or mishap, especially when a female's horoscope predicted a zodiac house on the descent (riesey), explained vulnerability to violence and its timing. Astrological incompatibility (kuu kam) was a risk factor. Lust, anger and ignorance, the 'Triple Poison', fuelled it. 'Entering the road to ruin' (apayamuk), including alcohol abuse, womanising and gambling, triggered it. Confusion and loss of judgement (moha) led to moral blindness (mo ban). These were the eight cultural attractors that shaped the landscape of violence against women. The cultural epigenesis of violence against women in Cambodia is an insight which can be used to build culturally responsive interventions and strengthen the primary prevention of violence against women. An understanding of the epigenesis of violence could strengthen the primary prevention of violence against women. PMID- 29340955 TI - Adult Atopic Dermatitis is Associated with Increased Aortic Stiffness. PMID- 29340956 TI - Semi-Targeted Analysis of Complex Matrices by ESI FT-ICR MS or How an Experimental Bias may be Used as an Analytical Tool. AB - Ammonia is well suited to favor deprotonation process in electrospray ionization mass spectrometry (ESI-MS) to increase the formation of [M - H]-. Nevertheless, NH3 may react with carbonyl compounds (aldehyde, ketone) and bias the composition description of the investigated sample. This is of significant importance in the study of complex mixture such as oil or bio-oil. To assess the ability of primary amines to form imines with carbonyl compounds during the ESI-MS process, two aldehydes (vanillin and cinnamaldehyde) and two ketones (butyrophenone and trihydroxyacetophenone) have been infused in an ESI source with ammonia and two different amines (aniline and 3-chloronaniline). The (+) ESI-MS analyses have demonstrated the formation of imine whatever the considered carbonyl compound and the used primary amine, the structure of which was extensively studied by tandem mass spectrometry. Thus, it has been established that the addition of ammonia, in the solution infused in an ESI source, may alter the composition description of a complex mixture and leads to misinterpretations due to the formation of imines. Nevertheless, this experimental bias can be used to identify the carbonyl compounds in a pyrolysis bio-oil. As we demonstrated, infusion of the bio-oil with 3-chloroaniline in ESI source leads to specifically derivatized carbonyl compounds. Thanks to their chlorine isotopic pattern and the high mass measurement accuracy, (+) ESI Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) unambiguously highlighted them from the numerous CxHyOz bio-oil components. These results offer a new perspective into the detailed molecular structure of complex mixtures such as bio-oils. Graphical Abstract ?. PMID- 29340957 TI - Spontaneous Isomerization of Peptide Cation Radicals Following Electron Transfer Dissociation Revealed by UV-Vis Photodissociation Action Spectroscopy. AB - Peptide cation radicals of the z-type were produced by electron transfer dissociation (ETD) of peptide dications and studied by UV-Vis photodissociation (UVPD) action spectroscopy. Cation radicals containing the Asp (D), Asn (N), Glu (E), and Gln (Q) residues were found to spontaneously isomerize by hydrogen atom migrations upon ETD. Canonical N-terminal [z4 + H]+? fragment ion-radicals of the R-C?H-CONH- type, initially formed by N-Calpha bond cleavage, were found to be minor components of the stable ion fraction. Vibronically broadened UV-Vis absorption spectra were calculated by time-dependent density functional theory for several [?DAAR + H]+ isomers and used to assign structures to the action spectra. The potential energy surface of [?DAAR + H]+ isomers was mapped by ab initio and density functional theory calculations that revealed multiple isomerization pathways by hydrogen atom migrations. The transition-state energies for the isomerizations were found to be lower than the dissociation thresholds, accounting for the isomerization in non-dissociating ions. The facile isomerization in [?XAAR + H]+ ions (X = D, N, E, and Q) was attributed to low energy intermediates having the radical defect in the side chain that can promote hydrogen migration along backbone Calpha positions. A similar side-chain mediated mechanism is suggested for the facile intermolecular hydrogen migration between the c- and [z + H]?-ETD fragments containing Asp, Asn, Glu, and Gln residues. Graphical Abstract ?. PMID- 29340958 TI - Robert C. Dunbar (June 26, 1943-October 31, 2017). PMID- 29340959 TI - Matrix Assisted and/or Laser Desorption Ionization Quadrupole Ion Trap Time-of Flight Mass Spectrometry of WO3 Clusters Formation in Gas Phase. Nanodiamonds, Fullerene, and Graphene Oxide Matrices. AB - The formation of W x O y+?/-? clusters in the gas phase was studied by laser desorption ionization (LDI) and matrix assisted laser desorption ionization (MALDI) of solid WO3. LDI produced (WO3) n+ ?/- ? (n = 1-7) clusters. In MALDI, when using nano-diamonds (NDs), graphene oxide (GO), or fullerene (C60) matrices, higher mass clusters were generated. In addition to (WO3) n-? clusters, oxygen rich or -deficient species were found in both LDI and MALDI (with the total number of clusters exceeding one hundred ~ 137). This is the first time that such matrices have been used for the generation of(WO3) n+?/-? clusters in the gas phase, while new high mass clusters (WO3) n-? (n = 12-19) were also detected. Graphical Abstract. PMID- 29340960 TI - Higher levels of progranulin in cerebrospinal fluid of patients with lymphoma and carcinoma with CNS metastasis. AB - Assessing central nervous system (CNS) involvement in patients with lymphoma or carcinoma is important in determining therapy and prognosis. Progranulin (PGRN) is a secreted glycosylated protein with roles in cancer growth and survival; it is highly expressed in aggressive cancer cell lines and specimens from many cancer types. We examined PRGN levels by Enzyme Immuno-Assay (EIA) in cerebrospinal fluid (CSF) samples from 230 patients, including 18 with lymphoma [12 with CNS metastasis (CNS+); 6 without CNS metastasis (CNS-)], 21 with carcinomas (10 CNS+; 11 CNS-), and 191 control patients with non-cancer neurological diseases, and compared PRGN levels among these disease groups. Median CSF PGRN levels in the CNS+ lymphoma group were significantly higher than in the CNS- lymphoma and control non-cancer groups; and were also significantly higher in the CNS+ carcinoma group than in the CNS- carcinoma and control groups, except for patients with infectious neurological disorders. Receiver operating characteristic curve analyses revealed that CSF PGRN levels distinguished CNS+ lymphoma from CNS- lymphoma and non-cancer neurological diseases [area under curve (AUC): 0.969]; and distinguished CNS+ carcinomas from CNS- carcinomas and non-cancer neurological diseases (AUC: 0.918). We report here, for the first time, that CSF PGRN levels are higher in patients with CNS+ lymphoma and carcinomas compared to corresponding CNS- diseases. This would imply that measuring CSF PGRN levels could be used to monitor CNS+ lymphoma and metastasis. PMID- 29340961 TI - Metabolic syndrome and its components among Korean submariners: a retrospective cross-sectional study. AB - PURPOSE: Metabolic syndrome (MetS) is a cluster of inter-related risk factors for cardiovascular disease and diabetes. Although submariners tend to be exposed to unhealthy environmental factors, such as a confined work environment, physical inactivity, and circadian disruption, little is known regarding whether the risks of MetS and its components are associated with submarine service. The present study aimed to evaluate the risks of MetS and its components among submariners. METHODS: A total of 5090 subjects (513 submariners and 4577 non-submariners) were included in the present study. We calculated the age-standardized and age specific prevalences of MetS. The associations between submarine service and the risks of MetS and its components were evaluated using logistic regression analysis after adjusting for age, service rank, and lifestyle factors. RESULTS: The age-standardized prevalences of MetS were 17.6 and 15.1% among submariners and non-submariners, respectively. Compared to non-submariners, submariners had higher risks of MetS (odds ratio [OR] 1.31, 95% confidence interval [CI] 1.02, 1.68), low high-density lipoprotein cholesterol (OR 1.73, 95% CI 1.36, 2.20), and impaired fasting glucose (OR 1.46, 95% CI 1.21, 1.76). When we stratified the subjects according to physical activity, an increased risk of elevated blood pressure associated with submarine service was evident only in the subgroup with moderate or vigorous physical activity (P for interaction = 0.006). CONCLUSION: Submariners had higher risks of MetS and some MetS components, compared to non submariners. These findings suggest that special efforts are needed to prevent and manage MetS among individuals who are expected to be exposed to submarine environment. PMID- 29340962 TI - Apoptotic and proliferative indexes in esophageal cancer: Predictors of response to neoadjuvant therapy apoptosis and proliferation in esophageal cancer. AB - Altered expression of the genes that control apoptosis and proliferation may influence the response of cancer cells to cytotoxic agents. The primary aim of this study was to determine the role of the novel an-tiapoptotic and cell cycle gene, survivin, in apoptotsis and proliferation in esophageal cancer and to evaluate whether the survivin, p53, and bcl-2 status were able to predict a patient's response to neoadjuvant therapy. A total of 104 patients with esophageal tumors were studied. Tumor tissue was immunostained for survivin, p53, and bcl-2 proteins. Proliferative and apoptotic activity was measured using ki-67 immu-nohistochemical analysis and the TUNEL method, respectively. Forty-eight patients whose pretreat-ment biopsies were analyzed received neoadjuvant chemoradiation therapy or chemotherapy followed by surgery. Outcome was graded as a complete response, a partial response, or no response according to the results of histologic examination and CT imaging. Expression of survivin was found to correlate significantly with the proliferative index but not the apoptotic index. Patients who received neoadjuvant treatment were more likely to achieve a complete response if their tumors had high proliferative activity, and p53 positive tumors were more likely to contain residual tumor after treatment. In conclusion, survivin expression appears to foster proliferative activity in esophageal cancer, and tumors with a high proliferative index or a functioning p53 gene are more responsive to neoadjuvant chemoradiation therapy. PMID- 29340963 TI - Interactions between drugs and geriatric syndromes in nursing home and home care: results from Shelter and IBenC projects. AB - AIM: Drugs may interact with geriatric syndromes by playing a role in the continuation, recurrence or worsening of these conditions. Aim of this study is to assess the prevalence of interactions between drugs and three common geriatric syndromes (delirium, falls and urinary incontinence) among older adults in nursing home and home care in Europe. METHODS: We performed a cross-sectional multicenter study among 4023 nursing home residents participating in the Services and Health for Elderly in Long-TERm care (Shelter) project and 1469 home care patients participating in the Identifying best practices for care-dependent elderly by Benchmarking Costs and outcomes of community care (IBenC) project. Exposure to interactions between drugs and geriatric syndromes was assessed by 2015 Beers criteria. RESULTS: 790/4023 (19.6%) residents in the Shelter Project and 179/1469 (12.2%) home care patients in the IBenC Project presented with one or more drug interactions with geriatric syndromes. In the Shelter project, 288/373 (77.2%) residents experiencing a fall, 429/659 (65.1%) presenting with delirium and 180/2765 (6.5%) with urinary incontinence were on one or more interacting drugs. In the IBenC project, 78/172 (45.3%) participants experiencing a fall, 80/182 (44.0%) presenting with delirium and 36/504 (7.1%) with urinary incontinence were on one or more interacting drugs. CONCLUSION: Drug-geriatric syndromes interactions are common in long-term care patients. Future studies and interventions aimed at improving pharmacological prescription in the long-term care setting should assess not only drug-drug and drug-disease interactions, but also interactions involving geriatric syndromes. PMID- 29340964 TI - Geriatric nutritional risk index as a simple tool for assessment of malnutrition among geriatrics in Northwest of Iran: comparison with mini nutritional assessment. AB - BACKGROUND: Older people are more likely to develop nutritional problems and timely diagnosis of malnutrition is crucial to prevent hazardous consequences following poor nutrition. AIMS: To evaluate the efficacy of Geriatric Nutritional Risk Index (GNRI) to assess nutritional status among non-hospitalized elderly, compared to mini nutritional assessment (MNA) among Iranian seniors. METHODS: One hundred and sixty-four subjects, aged >= 65 years old were recruited to our cross sectional study from various districts of Tabriz (Tabriz, Iran). Anthropometric and biochemical measurements were performed, short- and long-form MNAs and GNRI were assessed in our study subjects. Sensitivity, specificity and predictive values of the three indices, agreement between them, and their correlation with anthropometric and biochemical parameters were evaluated. Receiver-operating characteristic (ROC) curve analysis was performed to determine the optimal cut off point for GNRI in our study population. RESULTS: GNRI had lower sensitivity (50, 57%), but optimal specificity (94, 93%) and lower negative predictive value (NPV; 68, 71%) compared to MNA-LF and MNA-SF, respectively. We found a moderate agreement between GNRI and MNA-SF (K = 0.52) and MNA-LF (K = 0.46) scores. Significant correlations were observed between re-categorized MNAs as well as GNRI scores, and age, weight, MAC, CC, WC, albumin, and pre-albumin. The cut-off point of 110.33 was obtained for GNRI, according to the ROC curve. CONCLUSIONS: Although GNRI may not be an efficient tool for screening malnutrition due to its lower sensitivity, it is moderately correlated with MNAs and also more useful when limited funding needs to target the truly malnourished seniors. PMID- 29340965 TI - Emotional and social characteristics of stroke patients with low verbal memory. AB - BACKGROUND: Cognitive deficits, especially problems with memory observed after stroke often coexist with patients' experience of difficulties in everyday life situations. AIMS: The purposes of the study were to explore the relationships between verbal memory, emotional functioning and social competence in stroke patients, and to examine the emotional and social condition of stroke patients with low verbal memory. METHODS: Ninety-five participants were assessed with the Rey Auditory Verbal Learning Test, the Neuropsychology Behavior and Affect Profile, and the Social Competency Questionnaire. The participants' relatives (N = 95) also took part in the study evaluating patients' emotional and social functioning. RESULTS: Stroke patients with low verbal memory had higher scores in depression, indifference, and inappropriateness than the patients with normal memory. They also obtained higher scores in the self-reported intimacy and lower scores in objectively assessed social exposition than controls. DISCUSSION: It is worth considering patients' relationships with relatives that evolve after stroke, especially when the patients experience cognitive difficulties in gaining new information. Collecting verbal information seems to be important for the feeling of effectiveness in some dimensions of elders' social functioning. CONCLUSIONS: Because the social engagement may be treated as protective factor in the course of recovery we would recommend that during rehabilitation more attention should be paid to emotional and social functioning of stroke patients with low verbal memory. PMID- 29340966 TI - Cannabinomimetric Lipids: From Natural Extract to Artificial Synthesis. AB - Endocannabinoid system is related with various physiological and cognitive processes including fertility, pregnancy, during pre- and postnatal development, pain-sensation, mood, appetite, and memory. In the latest decades, an important milestone concerning the endocannabinoid system was the discovery of the existence of the cannabinoid receptors CB1 and CB2. Anandamide was the first reported endogenous metabolite, which adjusted the release of some neurotransmitters through binding to the CB1 or CB2 receptors. Then a series of cannabinomimetric lipids were extracted from marine organisms, which possessed similar structure with anandamide. This review will provide a short account about cannabinomimetric lipids for their extraction and synthesis. PMID- 29340967 TI - Testing the actual equivalence of automatically generated items. AB - If the automatic item generation is used for generating test items, the question of how the equivalence among different instances may be tested is fundamental to assure an accurate assessment. In the present research, the question was dealt by using the knowledge space theory framework. Two different ways of considering the equivalence among instances are proposed: The former is at a deterministic level and it requires that all the instances of an item template must belong to exactly the same knowledge states; the latter adds a probabilistic level to the deterministic one. The former type of equivalence can be modeled by using the BLIM with a knowledge structure assuming equally informative instances; the latter can be modeled by a constrained BLIM. This model assumes equality constraints among the error parameters of the equivalent instances. An approach is proposed for testing the equivalence among instances, which is based on a series of model comparisons. A simulation study and an empirical application show the viability of the approach. PMID- 29340968 TI - A novel blink detection method based on pupillometry noise. AB - Pupillometry (or the measurement of pupil size) is commonly used as an index of cognitive load and arousal. Pupil size data are recorded using eyetracking devices that provide an output containing pupil size at various points in time. During blinks the eyetracking device loses track of the pupil, resulting in missing values in the output file. The missing-sample time window is preceded and followed by a sharp change in the recorded pupil size, due to the opening and closing of the eyelids. This eyelid signal can create artificial effects if it is not removed from the data. Thus, accurate detection of the onset and the offset of blinks is necessary for pupil size analysis. Although there are several approaches to detecting and removing blinks from the data, most of these approaches do not remove the eyelid signal or can result in a relatively large amount of data loss. The present work suggests a novel blink detection algorithm based on the fluctuations that characterize pupil data. These fluctuations ("noise") result from measurement error produced by the eyetracker device. Our algorithm finds the onset and offset of the blinks on the basis of this fluctuation pattern and its distinctiveness from the eyelid signal. By comparing our algorithm to three other common blink detection methods and to results from two independent human raters, we demonstrate the effectiveness of our algorithm in detecting blink onset and offset. The algorithm's code and example files for processing multiple eye blinks are freely available for download ( https://osf.io/jyz43 ). PMID- 29340969 TI - On the predictive validity of various corpus-based frequency norms in L2 English lexical processing. AB - The predictive validity of various corpus-based frequency norms in first-language lexical processing has been intensively investigated in previous research, but less attention has been paid to this issue in second-language (L2) processing. To bridge the gap, in the present study we took English as a case in point and compared the predictive power of a large set of corpus-based frequency norms for the performance of an L2 English visual lexical decision task (LDT). Our results showed that, in general, the frequency norms from SUBTLEX-US and WorldLex-Blog tended to predict L2 performance better in reaction times, whereas the frequency norms from corpora with a mixture of written and spoken genres (CELEX, WorldLex Blog, BNC, ANC, and COCA) tended to predict L2 accuracy better. Although replicated in both low- and high-proficiency L2 English learners, these patterns were not exactly the same as those found in LDT data from native English speakers. In addition, we only observed some limited advantages of the lemma frequency and contextual diversity measures over the wordform frequency measure in predicting L2 lexical processing. The results of the present study, especially the detailed comparisons among the different corpora, provide methodological implications for future L2 lexical research. PMID- 29340970 TI - Ultrahigh temporal resolution of visual presentation using gaming monitors and G Sync. AB - Vision unfolds as an intricate pattern of information processing over time. Studying vision and visual cognition therefore requires precise manipulations of the timing of visual stimulus presentation. Although standard computer display technologies offer great accuracy and precision of visual presentation, their temporal resolution is limited. This limitation stems from the fact that the presentation of rendered stimuli has to wait until the next refresh of the computer screen. We present a novel method for presenting visual stimuli with ultrahigh temporal resolution (<1 ms) on newly available gaming monitors. The method capitalizes on the G-Sync technology, which allows for presenting stimuli as soon as they have been rendered by the computer's graphics card, without having to wait for the next screen refresh. We provide software implementations in the three programming languages C++, Python (using PsychoPy2), and Matlab (using Psychtoolbox3). For all implementations, we confirmed the ultrahigh temporal resolution of visual presentation with external measurements by using a photodiode. Moreover, a psychophysical experiment revealed that the ultrahigh temporal resolution impacts on human visual performance. Specifically, observers' object recognition performance improved over fine-grained increases of object presentation duration in a theoretically predicted way. Taken together, the present study shows that the G-Sync-based presentation method enables researchers to investigate visual processes whose data patterns were concealed by the low temporal resolution of previous technologies. Therefore, this new presentation method may be a valuable tool for experimental psychologists and neuroscientists studying vision and its temporal characteristics. PMID- 29340971 TI - Denosumab or oral bisphosphonates in primary osteoporosis: a "real-life" study. AB - PURPOSE: To compare the response to denosumab (DMAb) therapy with that of oral bisphosphonate (BISPH) treatment in postmenopausal women with primary osteoporosis (PO). METHODS: In this retrospective study, we compared data of 75 PO female patients treated for 24 months with DMab (DMAb Group, age 72.6 +/- 8.9 years) with those of 75 PO patients treated with oral bisphosphonates (BISPH Group), matched for age, body mass index, femoral bone mineral density (BMD), prevalent fragility fractures and familiar history of hip fracture. In all subjects at baseline and after 24 months we assessed the calcium-phosphorous metabolism parameters, BMD at lumbar spine (LS-BMD) and femoral neck (FN-BMD) by dual X-ray absorptiometry and the morphometric vertebral fractures by radiograph. The patients were considered inadequate responders in the presence of >= 2 incident fragility fractures and/or a decrease in BMD greater than the least significant change (LS 2.8%, FN 5.9%). RESULTS: After 24 months, the DMab Group showed a greater ALP decrease (- 22.8 +/- 18.2%), a higher LS-BMD and FN-BMD increase (6.6 +/- 6.9 and 4.4 +/- 8.2%, respectively) and a lower number of patients with an incident fracture (8%) and with an inadequate response (6.7%) than BISPH Group (- 14.9 +/- 15.3, 2.5 +/- 4.3, 1.9 +/- 4.5, 21.3 and 22.7%, respectively, p < 0.05 for all comparisons). The inadequate response was 4.5-fold more likely in BISPH Group than in DMab one (p = 0.027), regardless of possible confounders. CONCLUSIONS: In postmenopausal PO females, denosumab was more effective than oral bisphosphonates in increasing BMD and reducing bone turnover and the number of inadequate responder patients. PMID- 29340972 TI - Presence of diabetes-specific autoimmunity in women with gestational diabetes mellitus (GDM) predicts impaired glucose regulation at follow-up. AB - PURPOSE: Gestational diabetes mellitus (GDM) is the most frequent complication of pregnancy; around 10% of GDM cases may be determined by autoimmunity, and our aims were to establish the role of autoimmunity in a population of Sardinian women affected by GDM, to find predictive factors for autoimmune GDM, and to determine type 1 diabetes (T1D) auto-antibodies (Aabs) together with glucose tolerance after a mean 21.2 months of follow-up. METHODS: We consecutively recruited 143 women affected by GDM and 60 without GDM; clinical data and pregnancy outcomes were obtained by outpatient visit or phone recall. T1D auto antibodies GADA, IA2-A, IAA, ZnT8-A were measured in the whole population at baseline, and in the Aab-positive women at follow-up. RESULTS: The overall prevalence of autoimmunity was 6.4% (13/203). No significant difference was found in the prevalence of auto-antibodies between GDM (5.6%) and control (8.3%) women, neither in antibody titres. Highest titres for GADA and ZnT8-A were observed in the control group; no phenotypic factors were predictive for autoimmune GDM. Diabetes-related autoantibodies were still present in all the GDM women at follow up, and their presence was associated with a 2.65 (p < 0.0016) relative risk (RR) of glucose impairment. CONCLUSION: We observed a low prevalence (5.6%) of diabetes-related autoimmunity in our GDM cohort, consistent with the prevalence reported in previous studies. It was not possible to uncover features predictive of autoimmune GDM. However, given the significant risk of a persistent impaired glycemic regulation at follow-up, it is advisable to control for glucose tolerance in GDM women with diabetes-related autoimmunity. PMID- 29340973 TI - Reference intervals for thyrotropin in an area of Northern Italy: the Pordenone thyroid study (TRIPP). AB - PURPOSE: Thyrotropin (TSH) is the most accurate marker of thyroid dysfunction in the absence of pituitary or hypothalamic disease. Studies on TSH reference intervals (RIs) showed wide inter-individual variability and prompted an intense debate about the best estimation of TSH RIs. DESIGN: We performed a population study on TSH RIs, using current data stored in the laboratory information system (LIS), at the Hospital Department of Laboratory Medicine, Pordenone (Italy), historically an area of mild-moderate iodine deficiency with a relatively high goiter prevalence. METHODS: 136,650 individuals constituted the final sample. A TSH immunoassay was performed on fasting serum samples with the Dimension Vista 1500 analyzer (Siemens Healthineers). We adopted the Kairisto's procedure to analyze TSH data downloaded by the LIS, applying the indirect strategy for deriving RIs. RESULTS: TSH RIs of the entire population were 0.32-3.36 mIU/L with a distribution skewed towards higher values. RIs were 0.26-3.61 mIU/L for females, and 0.32-3.01 mIU/L for males. Unlike other studies, TSH median levels progressively decreased from 0-4 to 85-104 years in the overall population, both in male and in female subgroups, showing an inverse correlation between TSH and age in all groups. CONCLUSIONS: This study is the first to analyze a high percentage (40%) of individuals from an ethnically homogenous Caucasian population. The results obtained emphasize the opportunity to define the TSH RIs according to age, gender and race, in addition to assay methods, and provide further insight about the possible role of iodine status. PMID- 29340974 TI - Inhibiting 6-phosphogluconate dehydrogenase selectively targets breast cancer through AMPK activation. AB - PURPOSE: 6-phosphogluconate dehydrogenase (6PGD), a key enzyme of the oxidative pentose phosphate pathway, is involved in tumor growth and metabolism. Although high 6PGD activity has been shown to be associated with poor prognosis, its role and therapeutic value in breast cancer remain unknown. METHODS: The levels and roles of 6PGD were analyzed in breast cancer cells and their normal counterparts. The underlying mechanisms of 6PGD's roles are also analyzed. RESULTS: We found that 6PGD is aberrantly activated in breast cancer as shown by its increased transcriptional and translational levels as well as enzyme activity in breast cancer tissues and cell lines compared to normal counterparts. Although similar degree of enzyme activity inhibition was achieved in both breast cancer and normal breast cells, 6PGD inhibition by siRNA-mediated knockdown or pharmacological inhibitor physcion is more effective in inhibiting growth and survival in breast cancer than normal breast cells. Moreover, inhibiting 6PGD significantly sensitizes breast cancer response to chemotherapeutic agents in in vitro cell culture system and in vivo xenograft breast cancer model. We further show that 6PGD inhibition activates AMPK and its downstream substrate ACC1, leading to reduction of ACC1 activity and lipid biosynthesis. AMPK depletion significantly reverses the inhibitory effects of physcion in breast cancer cells, confirming that 6PGD inhibition targets breast cancer cell via AMPK activation. CONCLUSIONS: Our work provides experimental evidence on the association of 6PGD with poor prognosis in breast cancer and suggests that 6PGD inhibition may represent a potential therapeutic strategy to augment chemotherapy efficacy in breast cancer. PMID- 29340975 TI - Epidemiology of injuries in tennis players. AB - PURPOSE OF REVIEW: To review the recent literature regarding the epidemiology of tennis injuries at all levels of play, and to discuss recent findings in injury surveillance by the Association of Tennis Professionals (ATP). RECENT FINDINGS: Following the release of a consensus statement in 2009 calling for standardized documentation and analysis of tennis-related injuries, multiple studies have been published describing longitudinal injury incidences at Grand Slam tournaments and the Davis Cup. Recent efforts by the ATP have further elucidated injury patterns on tour. There have also been recent high-quality studies on injury trends among collegiate and elite junior tennis players, bringing attention to musculoskeletal injuries and systemic illnesses that young tennis players may be susceptible to. Recent efforts in injury surveillance by the ATP and at the collegiate and junior levels have highlighted injury trends that will help guide injury prevention strategies at various levels of play. PMID- 29340976 TI - Erratum to: Apoptotic and proliferative indexes in esophageal cancer: Predictors of response to neoadjuvant therapy apoptosis and proliferation in esophageal cancer. PMID- 29340977 TI - New Strategies for Improving the Development and Performance of Amorphous Solid Dispersions. AB - The understanding of amorphous solid dispersions has grown significantly in the past decade. This is evident from the number of approved commercial amorphous solid dispersion products. While amorphous formulation is considered an enabling technology, it has become the norm for formulating poorly soluble compounds. Despite this success, improvements can still be made that enable early development formulation decisions, to develop a rationale for selecting a manufacturing process, to overcome degradation and phase separation during processing, to help achieve physical stability during storage, and to optimize dissolution behavior. The purpose of this literature review is to present recently reported strategies for improving the development and performance of ASDs. The benefits and limitations of each strategy as well as recent relevant case studies will be presented in this review. The strategies are presented from three different aspects: (a) prediction techniques that enable formulation decisions, (b) manufacturing considerations that help produce physically and chemically stable ASDs, and PMID- 29340978 TI - Methotrexate Aspasomes Against Rheumatoid Arthritis: Optimized Hydrogel Loaded Liposomal Formulation with In Vivo Evaluation in Wistar Rats. AB - Aspasomes of methotrexate with antioxidant, ascorbyl palmitate, were developed and optimized using factorial design by varying parameters such as lipid molar ratio, drug to lipid molar ratio, and type of hydration buffer for transdermal delivery for disease modifying activity in rheumatoid arthritis (RA). Aspasomes were characterized by drug-excipients interaction, particle size analysis, determination of zeta potential, entrapment efficiency, and surface properties. The best formulation was loaded into hydrogel for evaluation of in vitro drug release and tested in vivo against adjuvant induced arthritis model in wistar rats, by assessing various physiological, biochemical, hematological, and histopathological parameters. Optimized aspasome formulation exhibited smooth surface with particle size 386.8 nm, high drug loading (19.41%), negative surface potential, and controlled drug release in vitro over 24 h with a steady permeation rate. Transdermal application of methotrexate-loaded aspasome hydrogel for 12 days reduced rat paw diameter (21.25%), SGOT (40.43%), SGPT (54.75%), TNFalpha (33.99%), IL beta (34.79%), cartilage damage (84.41%), inflammation (82.37%), panus formation (84.38%), and bone resorption (80.52%) as compared to arthritic control rats. Free methotrexate-treated group showed intermediate effects. However, drug-free aspasome treatment did not show any effect. The experimental results indicate a positive outcome in development of drug-loaded therapeutically active carrier system which presents a non-invasive controlled release transdermal formulation with good drug loading, drug permeation rate, and having better disease modifications against RA than the free drug, thereby providing a more attractive therapeutic strategy for rheumatoid disease management. PMID- 29340979 TI - Effect of Moisture Content of Chitin-Calcium Silicate on Rate of Degradation of Cefotaxime Sodium. AB - Assessment of incompatibilities between active pharmaceutical ingredient and pharmaceutical excipients is an important part of preformulation studies. The objective of the work was to assess the effect of moisture content of chitin calcium silicate of two size ranges (two specific surface areas) on the rate of degradation of cefotaxime sodium. The surface area of the excipient was determined using adsorption method. The effect of moisture content of a given size range on the stability of the drug was determined at 40 degrees C in the solid state. The moisture content was determined at the beginning and the end of the kinetic study using TGA. The degradation in solution was studied for comparison. Increasing the moisture content of the excipient of size range 63-180 MUm (surface area 7.2 m2/g) from 3.88 to 8.06% increased the rate of degradation of the drug more than two times (from 0.0317 to 0.0718 h-1). While an opposite trend was observed for the excipient of size range < 63 MUm (surface area 55.4 m2/g). The rate of degradation at moisture content < 3% was 0.4547 h-1, almost two times higher than that (0.2594 h-1) at moisture content of 8.54%, and the degradation in solid state at both moisture contents was higher than that in solution (0.0871 h-1). In conclusion, the rate of degradation in solid should be studied taking into consideration the specific surface area and moisture content of the excipient at the storage condition and it may be higher than that in solution. PMID- 29340980 TI - Facile Synthesis of Chitosan Capped Mesoporous Silica Nanoparticles: A pH Responsive Smart Delivery Platform for Raloxifene Hydrochloride. AB - An encapsulation of model drug raloxifene hydrochloride (RAL) inside the chitosan decorated pH responsive mesoporous system has a greater potential for accumulating in the tumor cells. The present study involves synthesis of surface modified mesoporous silica nanoparticles (MSN) with the aim of achieving pH sensitive drug delivery system. A silanol skeleton of MSN has been productively modified to amine intermediate which served as a firm platform to adapt chitosan grafted assembly and systematically evaluated. RAL incorporation inside the featured mesopores was performed employing novel immersion solvent evaporation methodology and evaluated further. The pH responsive behavior of formulated nano framework was studied at three different pH of a phosphate buffer saline individually. The in vitro cell viability assay on MCF-7 breast carcinoma cells was performed in time and concentration dependent manner. Finally, the hemolysis assay of designed nanoparticle was accomplished to envisage the hemocompatibility. The outcome of characterization details unveiled a perfect 2D hexagonal spherical structure gifted with higher surface area and optimum pore size for designed nanoparticles. The higher percentage grafting of amine and chitosan residue, i.e., 4.01 and 28.51% respectively along with 31.89 and 33.57% RAL loading efficiency made MSNs more attractive and applicable. Eventually, in vitro release study exhibited higher RAL release in acidic media for extended time periods confirming successful formation of pH responsive nanoparticle having controlled release property. Conclusively potential of designed nanosystem to serve efficient anti-cancer remedy was confirmed by superior behaviour of chitosan grafted MSN towards MCF-7 cells with supreme hemocompatibility. PMID- 29340981 TI - Nanolipid Gel of an Antimycotic Drug for Treating Vulvovaginal Candidiasis Development and Evaluation. AB - This paper focuses on the development and evaluation of mucoadhesive vaginal gel of fluconazole using nanolipid carriers to enhance tissue deposition in treating vulvovaginal candidiasis. Treatment of vulvovaginal candidiasis includes antimycotic agents prescribed for 1 to 7 days or longer, in relapse either orally or topically. The delivery of fluconazole as nanolipid carriers in vaginal gel can be proposed as suitable alternative to the existing conventional formulations to improve the patient acceptability, compliance and localized drug action. The nanolipid carriers of fluconazole were prepared by phase inversion temperature technique and incorporated into Carbopol 974P as gelling polymer. GRAS excipients selected and optimized were Precirol ATO 5, oleic acid and Kolliphor RH 40 to produce nanolipid dispersions. Stable nanolipid dispersions were developed using sodium dodecyl sulfate as the charge inducer. The optimized nanolipid dispersion of fluconazole had particle size, polydispersity index and zeta potential value of 158.33 +/- 2.55 nm, 0.278 +/- 0.003 and - 27.33 +/- 0.40 mV, respectively and the average entrapment of fluconazole in the lipid carriers was found to be 67.24 +/- 0.87%. The optimized vaginal gel had satisfactory mucoadhesive strength and rheological properties to facilitate vaginal application. The fluconazole release from the gel was sustained showing 30.69 +/- 1.02% drug deposition in the porcine vaginal mucosa at the end of 8 h with improved antifungal activity against Candida albicans during well diffusion studies. The optimized gel was non irritant to the vaginal mucosa of female Wistar rats with no signs of erythema or edema. PMID- 29340982 TI - Controlled Release of the Nimodipine-Loaded Self-Microemulsion Osmotic Pump Capsules: Development and Characterization. AB - The present study was intended to develop a controlled released osmotic pump capsule based on Nimodipine (NM)-loaded self-microemulsifying drug delivery systems (SMEDDSs) in order to improve the low oral bioavailability of NM. To optimize the NM-loaded SMEDDS composition, the experiments of NM solubility in different oils, the pseudo-ternary phase diagram experiments and the different drug loading experiments were conducted in the preliminary screening studies. Controlled release of NM required an osmotic pump capsule comprising a coated semi-permeable capsule shell, plasticizer, and pore-forming agent. NM release follows zero-order kinetics after oral administration. Polyethylene glycol content, used as a pore-forming agent, coating mass, and drug release orifice size were key factors affecting drug release behavior according to the single methods and were optimized through response surface methodology. The NM-loaded SMEDDS droplet size and the 1H NMR mass spectrogram of the novel capsule were determined. The droplet size of the reconstituted microemulsion was 39.9 nm and 1H NMR analysis showed NM dissolution in the microemulsion. The dissolution test performed on three batches of NM-SMEDDS capsules-prepared using optimal preparation methods-indicated the capsule to deliver a qualified drug delivery with a zero-order release rate. The results demonstrated that NM-loaded SMEDDSs were successfully developed and displayed a qualified release rate in vitro. PMID- 29340983 TI - 18F-FDG PET/CT-imaging of left ventricular assist device infection: a retrospective quantitative intrapatient analysis. AB - BACKGROUND: Despite the use of 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT), diagnosis of a driveline infection in ventricular assist device (LVAD) recipients remains challenging. Our aim was to evaluate the potential of a baseline 18F-FDG PET/CT (prior to an infection) for the diagnosis of an LVAD-related infection. METHODS: We retrospectively selected all LVAD recipients who had undergone two consecutive whole-body 18F-FDG PET/CT examinations between January 2010 and December 2016. PET/CT was analyzed qualitatively (uptake pattern) and semi-quantitatively (SUVmax and ?SUVmax). SUVmax was measured and compared in five distinctive volumes of interest along the LVAD driveline. An SUVmax threshold was calculated. Final diagnosis was made by clinical examination, microbiological parameters, and molecular imaging. RESULTS: Thirty patients were enrolled (mean age 54 +/- 12 years; 26 male). Mean difference in SUVmax for all five positions between the first and the second PET/CT along the driveline was significantly higher in patients with an LVAD related infection (mean ?SUVmax = 4.38 +/- 1.44) compared to those without a driveline infection (mean ?SUVmax = 0.03 +/- 0.43), P < 0.05. Applying ROC analysis, an SUVmax threshold of 3.88 resulted in a sensitivity and specificity of 100%, respectively. There were three distinctive uptake patterns in patients with a driveline infection. CONCLUSION: PET/CT diagnosis in the context of an LVAD-related infection can be improved by comparison to a baseline examination using a distinctive SUVmax threshold. PMID- 29340984 TI - Exercise-induced ST elevation with minimal ischemia by perfusion imaging. PMID- 29340985 TI - The mystery poor prognosticator! Pharmacologic stress MPI prevalence and predictors: Insights from the Middle East. PMID- 29340986 TI - Comparison of maximal Rubidium-82 activities for myocardial blood flow quantification between digital and conventional PET systems. AB - BACKGROUND: PET-based myocardial blood flow (MBF) quantification can be inaccurate when using high tracer activities. Our aim was to derive the maximal Rubidium-82 activity for MBF assessment using a new digital PET system and compare the results with conventional analog systems. METHODS: 1.8 GBq Rubidium 82 was injected into the cardiac insert of an anthropomorphic torso phantom. Data were acquired for 10 min using an Ingenuity TF (Philips Healthcare), Discovery 690 (D690, GE Healthcare), and digital PET prototype system (Philips Healthcare). The dynamic ranges, defined as the maximal measured activity in the reconstructed images deviating < 10% from the true present activity, were determined in all scans. RESULTS: The dynamic ranges were 312 MBq for Ingenuity TF, 650 MBq for D690, and 654 MBq for digital PET prototype. CONCLUSIONS: The maximal Rb-82 activity for MBF assessment using digital PET prototype is higher than that for its analog counterpart (Ingenuity TF), but seems comparable to the D690. PMID- 29340987 TI - Lost in quantification...: The influence of different software packages on flow quantification measures. PMID- 29340988 TI - Interventricular septum involvement with complete atrioventricular block as first manifestation in Takayasu arteritis. PMID- 29340989 TI - Gated SPECT myocardial perfusion imaging with cadmium-zinc-telluride detectors allows real-time assessment of dobutamine-stress-induced wall motion abnormalities. AB - BACKGROUND: Left ventricular (LV) ejection fraction (EF) during high dobutamine stress (HD) by real-time gated-SPECT myocardial perfusion imaging (MPI) on a cadmium-zinc-telluride (CZT) gamma camera was validated versus cardiac magnetic resonance imaging (CMR). METHODS AND RESULTS: After injecting 99mTc-tetrofosmin (320 MBq) in 50 patients (mean age 64 +/- 11 years), EF at rest and post-stress as well as relevant changes in EF at HD (DeltaEF >= 5%) were assessed. CZT and CMR rest EF values yielded an excellent correlation and agreement (r = 0.96; P < 0.001; Bland-Altman limits of agreement (BA): + 0 to 14.8%). HD EF acquisition was feasible using CZT and correlated better to HD CMR EF than did post-stress CZT EF (r = 0.85 vs 0.76, respectively, all P < 0.001). Agreement in DeltaEF detection between HD CMR and immediate post-stress CZT (reflecting standard acquisition using conventional SPECT camera unable to scan during stress) was 45%, while this increased to 85% with real-time HD CZT scan. CONCLUSION: Real time ultrafast dobutamine gated-SPECT MPI with a CZT device is feasible and provides accurate measurements of HD LV performance. PMID- 29340990 TI - Role of myocardial perfusion scintigraphy in octogenarians: Time for reappraisal? PMID- 29340991 TI - Neoadjuvant Chemotherapy for Hypopharyngeal Squamous Cell Carcinoma and Personalized Medicine in Head and Neck Cancer. PMID- 29340992 TI - Prospective Comparative Study of Laparoscopic Narrow Band Imaging (NBI) Versus Standard Imaging in Gynecologic Oncology. AB - BACKGROUND: Narrow band imaging (NBI) is an optic filtration enhancement for endoscopy that uses two wavelengths of light (415 and 540 nm) to highlight superficial microvascular patterns. It has been successfully utilized to improve identification of lesions with abnormal vasculature, which is associated with endometriosis and endometrial cancer. Case studies suggest it may also facilitate surgical staging of gynecologic cancer, which is critical in determining appropriate adjuvant therapies. A technology that enhances the ability to identify metastatic disease during minimally invasive surgery (MIS) could make an important difference in patient outcomes. METHODS: A prospective comparative study was conducted to evaluate patients with clinical indication for diagnostic or operative laparoscopy. All received white light imaging followed by NBI during the same procedure. Suspicious lesions were examined and photographed, using both modalities, before excision. The two techniques were compared. Positive predictive value, negative predictive value, and diagnostic accuracy in identifying histologically confirmed metastatic lesions were assessed, using appropriate statistical methods. RESULTS: Of 124 patients enrolled in the study, 94 were evaluable; 30 did not undergo MIS and were therefore excluded. A significantly higher number of peritoneal abnormalities were identified with NBI versus white light imaging (P = 0.0239). However, no statistically significant difference (P = 0.18, patient level) was observed in identification of histologically confirmed metastatic disease. CONCLUSIONS: NBI imaging provides a unique contrast between peritoneal surface and microvascular patterns. However, the results of this study suggest that NBI-enhanced laparoscopy does not provide superior detection of peritoneal surface malignancy compared with standard white light high-definition laparoscopy. PMID- 29340993 TI - Laparoscopic-Assisted Modified Intersphincter Resection for Ultralow Rectal Cancer. AB - BACKGROUND: Intersphincter resection (ISR) is considered to be a superior technique offering sphincter preservation in patients with ultralow rectal cancer.1 Because high-definition laparoscopy offers wider and clearer vision into the narrow pelvic cavity and intersphincteric space, ISR has been further refined.2 However, functional outcome after ISR has not been optimal. More than half of patients receiving ISR suffer partial or even complete anal incontinence.3 We therefore propose a laparoscopic-assisted modified ISR, with the aim of improving sphincter function following ISR. METHODS: The video describes the technique for performing such laparoscopic-assisted modified ISR in a 62-year-old woman with ultralow rectal cancer (3 cm from anal verge). Preoperative staging by endorectal ultrasound and pelvic magnetic resonance imaging revealed stage I rectal cancer (cT2N0M0). The operation consisted of an abdominal and a perineal phase. The abdominal phase routinely involved colonic mobilization with high ligation of inferior mesenteric vessels, total mesorectal excision (TME), as well as transabdominal intersphincteric dissection. The procedure for laparoscopic TME was performed according to our published method.4 Along the TME dissection plane, the puborectalis could be reached and the intersphincteric space was entered posterolaterally. The hiatal ligament at the posterior side of the rectum was transected afterwards. The dissection of the intersphincteric space was continued caudally at the anterior side of the rectum. The distal bowel wall was mobilized for 2 cm from the lower edge of the tumor to obtain adequate distal margin. At this point, circular dissection of the intersphincteric space was completed. After the abdominal phase, perineal dissection was performed with wide exposure by use of a hooked self-retaining retractor. The lower margin of the tumor was identified under direct vision. We developed a modified ISR technique. Resection of the mucosa and internal sphincter was initiated 2 cm distal to the lower edge of the tumor at the tumor side to obtain the necessary distal margin. Meanwhile, at the opposite side of the tumor, the resection line was just above the dentate line so that partial dentate line could be preserved. After removal of the specimen en bloc per anus, the pelvic cavity was generously irrigated with diluted povidone iodine solutions. The distal margin of the specimen was then examined by frozen section for presence of cancer. If clear, coloanal anastomosis was performed using a handsewn technique. The colon was rotated 90 degrees and anastomosed to the anal canal with interrupted absorbable 3-0 sutures. Finally, a pelvic suction drain was placed, and a temporary diverting stoma made in the terminal ileum. RESULTS: There were no intraoperative complications. The operating time was 180 min. Blood loss was 50 mL. The distal margin was clear, and the final pathology was pT2N0M0. The patient underwent an uneventful recovery. She began sphincter-strengthening exercises 2 weeks after surgery. The stoma was closed after examinations 3 months later. No local recurrence or distant metastasis was found. At 12-month follow up, in terms of sphincteric function, the patient was continent to solids, liquids, and flatus. CONCLUSIONS: Laparoscopic-assisted modified intersphincter resection for ultralow rectal cancer is safe and feasible. This technique should be considered whenever possible as a means to offer sphincter preservation and improve sphincter function in patients with ultralow rectal cancer. PMID- 29340994 TI - Erratum to: Detection of Ultrafine Anaphase Bridges. PMID- 29340995 TI - Is bacteremia the decisive factor for the duration of antimicrobial therapy in bacteremic urinary tract infections? PMID- 29340996 TI - Recent advances in the development of polycyclic skeletons via Ugi reaction cascades. AB - Isocyanide-based multicomponent reactions are among the most powerful synthetic tools available. Particularly, the isocyanide-based Ugi reaction can allow rapid preparation of [Formula: see text]-aminoacyl amide derivatives and polyazaheterocycles with extensive pharmaceutical applications. Moreover, bridged polyazaheterocycles, including one or more quaternary carbon centers, can be constructed via the Ugi cascade reaction in a few steps. This review will emphasize synthesis and bioactivities of bridged compounds with quaternary centers constructed through Ugi cascade reactions. PMID- 29340998 TI - On pacing trials while scanning brain hemodynamics: The case of the SNARC effect. AB - Experimental designs used to describe psychological effects on overt human behavior are seldom suited to localize their corresponding neural substrates based on the analysis of stimulus-evoked brain hemodynamic responses. This is because stimuli in behavioral studies are usually separated by intertrial intervals (ITIs) in the order of 1 second or so following a behavioral response, which is notoriously too brief a time to detect a corresponding hemodynamic response. In fact, a solution commonly adopted in neuroimaging studies is to prolong the ITI up to several seconds. In doing so, the consequences of ITI variations between behavioral and neuroimaging design variants are either benignly neglected or explicitly assumed to be negligible. Here, we provide a systematic investigation of the consequence of manipulating ITI in a design optimized to study a well-established and highly replicable psychological phenomenon-the spatial numerical association of response codes (SNARC). The present exploration encompassed standard estimates of the SNARC effect (i.e., on reaction times and accuracy), estimates of ITI effects on the emotional state of participants before and after performing the SNARC task, as well as the degree of perceived task difficulty. The results showed that, in striking contrast to the common wisdom about the nil role of ITI, the substantial number of parametric differences observed between the two ITI conditions suggests that ITI plays a critical role in shaping the meaning of hemodynamic correlate of a psychological, at least the SNARC, effect. PMID- 29340999 TI - Introduction to MRI Physics. AB - Magnetic resonance imaging (MRI) is an imaging technique derived from radiofrequency (RF) signals of proton that are magnetized by a strong magnetic field. These protons typically originate from water, fat, or metabolites. The application of RF pulses is used to excite the magnetization, whereas pulsed magnetic field gradients are used to provide spatial localization. This chapter describes the fundamental principles giving rise to MR images. Furthermore, the connection between relaxation and image contrast is discussed. PMID- 29340997 TI - Immunohistochemical Biomarkers of Mesenchymal Neoplasms in Endocrine Organs: Diagnostic Pitfalls and Recent Discoveries. AB - Mesenchymal neoplasms rarely present in or adjacent to endocrine organs. In this context, the recognition of these rare tumor types can be challenging, with significant potential for misdiagnosis as sarcomatoid carcinomas (i.e., anaplastic thyroid carcinoma and sarcomatoid adrenal cortical carcinoma) or neuroendocrine carcinomas, depending upon the dominant histologic patterns. In this review, we address potential pitfalls in diagnosing selected mesenchymal neoplasms arising within or near endocrine organs, including dedifferentiated liposarcoma, synovial sarcoma, angiosarcoma, PEComa, proximal-type epithelioid sarcoma, Ewing sarcoma, and neuroblastoma. For each of these tumor types, we review clinical and pathologic features, histologic clues to distinguish them from endocrine neoplasms, and recently developed immunohistochemical markers that can be particularly useful for establishing the correct diagnosis. PMID- 29341000 TI - Basic Pulse Sequences in Magnetic Resonance Imaging. AB - Magnetic resonance images are obtained by a combination of different radiofrequency pulses and gradient waveforms applied to the subject inside a magnetic field. There are multiple pulse sequences used in clinical and preclinical studies adjusted to whatever physician or researches want to analyze, from basic anatomic images to accurate diagnostic techniques as diffusion, perfusion, or functional imaging. In this chapter, we present the most used radiofrequency pulse combinations of the two groups of sequences available in magnetic resonance imaging: spin-echo and gradient-echo sequences. PMID- 29341001 TI - Dynamic Susceptibility Contrast MRI in Small Animals. AB - The use of magnetic resonance imaging (MRI) for studying the cerebral perfusion mechanisms is well proved and contrasted in the clinical and research setups. This methodology is a promising tool in assessing numerous brain diseases like intracranial tumors, neurodegeneration processes, mental disorders, injuries and so on. In the preclinical environment, perfusion MRI offers a powerful resource for characterizing pathological models and specially identifying biomarkers to monitor the illness and validate the efficacy of therapeutical approaches. This chapter presents the theoretical bases and experimental protocols of dynamic susceptibility contrast MRI acquisitions for developing perfusion MRI studies in small animals. PMID- 29341002 TI - Preclinical Arterial Spin Labeling Measurement of Cerebral Blood Flow. AB - Magnetic resonance imaging has been utilized as a quantitative and noninvasive method to image blood flow. Arterial spin labeling (ASL) is an MRI technique that images blood flow using arterial blood water as an endogenous tracer. Herein we describe the use of ASL to measure cerebral blood flow completely noninvasively in rodents, including methods, analysis, and important considerations when utilizing this technique. PMID- 29341003 TI - Dynamic Contrast-Enhanced MRI. AB - Dynamic contrast-enhanced MRI in pre-clinical imaging allows the in-vivo monitoring of vascular, physiological properties in normal and diseased tissue. There is considerable variation in the methods employed owing to the different questions that can be asked and answered about the physiologic alterations as well as morphologic changes in tissue. Here we review the typical decisions in the design and execution of a dynamic contrast-enhanced MRI study in mice although the findings can easily be transferred to other species. Emphasis is placed on highlighting the many pitfalls that wait for the unaware pre-clinical MRI practitioner and that go often unmentioned in the abundant literature dealing with dynamic contrast-enhanced MRI in animal models. PMID- 29341004 TI - Diffusion-Weighted Magnetic Resonance Imaging. AB - Magnetic resonance imaging (MRI) is a technique based on the contents and relaxation features of water in tissues. In basic MRI sequences, diffusion phenomenon of water molecules is not taken into account although it has a notable influence in the relaxation times, and therefore in the signal intensity of images. In fact, MRI techniques that take advantage of water diffusion have experienced a huge development in last years. Diffusion-weighted imaging (DWI) has spectacularly evolved reaching nowadays a great impact both in clinical and preclinical imaging-especially in the neuroimaging field-and in basic research. We present here a protocol to perform DWI studies in a high-field preclinical setup. PMID- 29341005 TI - Diffusion Tensor Imaging (DTI). AB - Diffusion Tensor Imaging is an MRI technique that allows in vivo noninvasive measurement of the translational motion of water, providing information about its anisotropy (or lack of it) in different tissues. DTI has been commonly used to quantitatively measure the integrity of tissues which may be compromised by neurological disease, such as white matter tracks of the brain, which normally impart significant anisotropy to water motion in healthy brains. However, this anisotropic effect is diminished when axonal or neuronal damage is present. This chapter describes a standard protocol for DTI data acquisition in preclinical studies. PMID- 29341006 TI - Mapping Functional Connectivity in the Rodent Brain Using Electric-Stimulation fMRI. AB - Since its discovery in the early 90s, BOLD signal-based functional Magnetic Resonance Imaging (fMRI) has become a fundamental technique for the study of brain activity in basic and clinical research. Functional MRI signals provide an indirect but robust and quantitative readout of brain activity through the tight coupling between cerebral blood flow and neuronal activation, the so-called neurovascular coupling. Combined with experimental techniques only available in animal models, such as intracerebral micro-stimulation, optogenetics or pharmacogenetics, provides a powerful framework to investigate the impact of specific circuit manipulations on overall brain dynamics. The purpose of this chapter is to provide a comprehensive protocol to measure brain activity using fMRI with intracerebral electric micro-stimulation in murine models. Preclinical research (especially in rodents) opens the door to very sophisticated and informative experiments, but at the same time imposes important constrains (i.e., anesthetics, translatability), some of which will be addressed here. PMID- 29341007 TI - Functional Diffusion Magnetic Resonance Imaging. AB - Functional diffusion magnetic resonance imaging (fDMRI) is a noninvasive technique that allows elucidating physiological and anatomical changes at a microscopic scale by detection of water molecular displacements in tissue structures. These displacements likely reflect microstructural changes associated with neuronal or glial cells activation. In this chapter, we will describe the physical and biological concepts of fDMRI and how images of brain activation can be acquired in a preclinical setup. PMID- 29341008 TI - In Vivo 1H Magnetic Resonance Spectroscopy. AB - In vivo Magnetic Resonance Spectroscopy (MRS) allows the non-invasive detection and quantification of a number of metabolites from localized volumes within a living organism. MRS localization techniques can be divided into two main groups, single voxel and multi-voxel. Single voxel techniques provide the metabolic profile from a specific small volume, whereas multi-voxel techniques are used to obtain the spatial distribution of metabolites throughout a large volume subdivided into small contiguous voxels. This chapter describes standard protocols for the acquisition and processing of in vivo single voxel1H MRS data from the rodent brain. PMID- 29341009 TI - In Vivo Heteronuclear Magnetic Resonance Spectroscopy. AB - Magnetic Resonance Spectroscopy is a technique that has the capability of measuring metabolites in vivo and, in appropriate conditions, to infer its metabolic rates. The success of MRS depends a lot on its sensitivity, which limits the usage of X-nuclei MRS. However, technological developments and refinements in methods have made in vivo heteronuclear MRS possible in humans and in small animals. This chapter provides detailed descriptions of the main procedures needed to perform successful in vivo heteronuclear MRS experiments, with a particular focus on experimental setup in 13C MRS experiments in rodents. PMID- 29341010 TI - 1H Spectroscopic Imaging of the Rodent Brain. AB - Proton MR spectroscopic imaging (MRSI) can provide a variety of "molecular images" from animal models of human disease, which are useful for different research purposes. This chapter describes a protocol for in vivo acquisition and analysis of MRSI data from the rodent brain. PMID- 29341011 TI - Susceptibility Weighted MRI in Rodents at 9.4 T. AB - Susceptibility Weighted Imaging (SWI) is an established part of the clinical neuroimaging toolbox and, since its inception, has also successfully been used in various preclinical studies. Exploiting the effect of variations of magnetic susceptibility between different tissues on the externally applied, static, homogeneous magnetic field, the method visualizes venous vasculature, hemorrhages and blood degradation products, calcifications, and tissue iron deposits. The chapter describes in vivo and ex vivo protocols for preclinical SWI in rodents. PMID- 29341012 TI - Biomedical 19F MRI Using Perfluorocarbons. AB - Background-free fluorine (19F) MR imaging exhibits an excellent degree of specificity, and facilitates among others the in vivo visualization of inflammatory processes. Merging19F MR images with morphologically matching1H MR images enables the exact anatomic localization of the observed19F signal. Biochemically inert nanoemulsions of perfluorocarbons, which are known to be taken up by the macrophage/monocyte system, are widely used as contrast agents for preclinical applications. Herein, the most common protocols are described to obtain high-resolution and artifact-free19F MR images even for compounds with complex19F MR spectra. In addition, we report on the utilization of perfluorocarbons with individual spectral identities and targeting approaches to specifically visualize thrombi by19F MRI. PMID- 29341013 TI - Rodent Abdominal Adipose Tissue Imaging by MR. AB - Rodents including rats and mice are important models to study obesity, diabetes, and metabolic syndrome in a preclinical setting. Translational and longitudinal imaging of these rodents permit investigation of metabolic diseases and identification of imaging biomarkers suitable for clinical translation. Here we describe the imaging protocols for achieving quantitative abdominal imaging in small animals followed by segmentation and quantification of fat volumes. PMID- 29341014 TI - Cardiac MRI in Small Animals. AB - Cardiac magnetic resonance (MR) imaging of mice is a valuable tool for the precise in vivo diagnosis and prognosis of heart defects. This detailed protocol describes the method of cardiac MR imaging in mice step by step. A series of MR images captures the contractile function of the mouse heart and post-processing of the image data yields morphometric parameters (myocardial mass, myocardial wall thickness, ventricular end-systolic and end-diastolic volume) as well as functional parameters (stroke volume and ejection fraction). This protocol may also serve as a starting point for MR imaging of rats, by using larger image dimensions (field-of-view) and MR hardware suitable for larger animals. PMID- 29341015 TI - In Utero MRI of Mouse Embryos. AB - Genetically engineered mouse models are used extensively as models of human development and developmental diseases. Conventional histological approaches are static and two-dimensional, and do not provide a full understanding of the dynamic, spatiotemporal changes in developing mouse embryos. Magnetic resonance imaging (MRI) offers a noninvasive and longitudinal approach for three dimensional in utero imaging of normal and mutant mouse embryos. In this chapter, we describe MRI approaches that have been developed for imaging the living embryonic mouse brain and vasculature. Details are provided on the animal preparation and setup, MRI equipment, acquisition and reconstruction methods that have been found to be most useful for in utero MRI, including examples of applications to fetal mouse neuroimaging. PMID- 29341016 TI - Oxygenation Imaging by Nuclear Magnetic Resonance Methods. AB - Oxygen monitoring is a topic of exhaustive research due to its central role in many biological processes, from energy metabolism to gene regulation. The ability to monitor in vivo the physiological distribution and the dynamics of oxygen from subcellular to macroscopic levels is a prerequisite to better understand the mechanisms associated with both normal and disease states (cancer, neurodegeneration, stroke, etc.). This chapter focuses on magnetic resonance imaging (MRI) based techniques to assess oxygenation in vivo. The first methodology uses injected fluorinated agents to provide quantitative pO2 measurements with high precision and suitable spatial and temporal resolution for many applications. The second method exploits changes in endogenous contrasts, i.e., deoxyhemoglobin and oxygen molecules through measurements of T 2* and T 1, in response to an intervention to qualitatively evaluate hypoxia and its potential modulation. PMID- 29341017 TI - Molecular Magnetic Resonance Imaging (mMRI). AB - Molecular magnetic resonance imaging (mMRI) enables the detection of a protein of interest in vivo, in a noninvasive manner. The general concept of mMRI is to target a contrast agent to a protein of interest, and to perform a contrast sensitive MRI sequence. Typically, contrast agents are made of a "contrastophore" (the part of the construct responsible for the contrast on the images) and a targeting moiety ("pharmacophore"). Recently, the development of a new family of contrastophore carrying a high payload of iron oxide (micro-sized particles of iron oxide, MPIO) has led to a dramatic increase in the sensitivity of mMRI. Here, we describe the production of targeted MPIO using commercially available reagents and the MRI protocols to allow their detection in vivo. PMID- 29341018 TI - Magnetic Resonance Spectroscopy Studies of Mouse Models of Cancer. AB - Magnetic resonance spectroscopy (MRS) or spectroscopic imaging (MRSI) enables the detection of metabolites, amino acids, and lipids, among other biomolecules, in tumors of live mouse models of cancer. Tumor-bearing mice are anesthetized by breathing isoflurane in a magnetic resonance (MR) scanner dedicated to small animal MR. Here we describe the overall setup and steps for measuring 1H and 31P MRS and 1H MRSI of orthotopic breast tumor models in mice with surface coils. This protocol can be adapted to the use of volume coils to measure 1H and 31P MRS(I) of tumor models that grow inside the body. We address issues of animal handling, setting up the measurement, measurement options, and data analysis. PMID- 29341019 TI - MRI in the Study of Animal Models of Neurodegenerative Diseases. AB - Magnetic Resonance Imaging (MRI) is an important tool to study various animal models of degenerative diseases. This chapter describes routine protocols of T 1 , T 2-, and T 2*-weighted and diffusion-weighted MRI for rodent brain and spinal cord. These protocols can be used to measure atrophy, axonal and myelin injury and changes in white matter connectivity. PMID- 29341020 TI - MRI in the Study of Animal Models of Stroke. AB - Stroke consists of the loss of cerebral functions resulting from the interruption of blood supply to a region of the brain, and represents the second cause of death and the leading cause of major disability in adults in Europe. Stroke is a very active field of research at preclinical and clinical levels, and Magnetic Resonance Imaging (MRI) is one of the most powerful tools that scientist and clinicians have for the study of the onset, evolution and consequences of this devastating disease, as well as for the monitoring of the success of available treatments, or for the development of novel therapeutic strategies.MRI can tackle the study of stroke from different points of view, and at scales ranging from subcellular to systems biology level. Magnetic resonance spectroscopy (MRS) allows the noninvasive measurement of the levels of principal metabolites in the brain, and how they change during the course of the disease, or in response to therapy. Glutamate, in particular, is very important in the field of stroke. Several anatomical MR techniques allow the characterization of the lesion volumes, the formation of cytotoxic and vasogenic edema, changes in cerebral blood flow and volume, structural changes in gray and white matter, the obtaining of the vascular architecture and status, etc. At functional level, diverse modalities of functional MRI (fMRI) allow the assessment of the alteration in the function and organization of neuronal networks of the subject under study, as a consequence of the disease or in response to treatment. Finally, emerging imaging modalities that include temperature and pH mapping of the brain, imaging by chemical exchange saturation transfer effect (CEST), all of them closely related to tissue status, or the use of contrast agents for the targeting of tissue in theranostic approaches or for cell tracking studies in cell-based therapies, etc., are only a few examples of the power and versatility of MRI as a definitive tool for the study of stroke.In this work we will set our focus on preclinical imaging of stroke models, emphasizing the most commonly used imaging modalities in a stroke-dedicated research laboratory. However, advanced techniques will be briefly discussed, providing references to specialized literature for more advanced readers. Thus, the aim of this chapter consist in the description of a simple imaging protocol for the study of the most important and common aspects of stroke in a research laboratory. PMID- 29341021 TI - Assessment of Blood Brain Barrier Leakage with Gadolinium-Enhanced MRI. AB - The integrity of the blood-brain barrier (BBB) can be noninvasively monitored by magnetic resonance imaging (MRI). Conventional MR contrast agents (CAs) containing gadolinium are used in association with MRI in routine clinical practice to detect and quantify BBB leakage. Under normal circumstances CAs do not cross the intact BBB. However due to their small size they extravasate from the blood into the brain tissue even when the BBB is partially compromised. Here we describe an MR method based on T1-weighted images taken prior to and after CA injection. This MR method is useful for investigating BBB permeability in in vivo mouse models and can be easily applied in a number of experimental disease conditions including neuroinflammation disorders, or to assess (un)wanted drug effects. PMID- 29341022 TI - In Vivo Pharmacokinetics of Magnetic Nanoparticles. AB - Over the past few years, many papers have been published on the nanomedical applications of magnetic nanoparticles. However, most studies lack important information about the in vivo behavior of these nanoparticles, which is a critical aspect for their rational design. In this chapter we describe a simple protocol for the in vivo characterization of the pharmacokinetics of magnetic nanoparticles intravenously injected in mice, using basic MRI sequences. PMID- 29341023 TI - Anesthesia and Monitoring of Animals During MRI Studies. AB - The use of imaging represents a major impact on the refinement and the reduction of in vivo studies in animal models, in particular for allowing longitudinal monitoring of the onset and the progression of disease within the same animal, and studying the biological effects of drug candidate and their therapeutic effectiveness. But the use of imaging procedures can affect animal physiology, and the need to anesthetize the animals for imaging entails potential health risks. During anesthesia, there is an inevitable autonomic nervous system depression which induces cardiovascular depression, respiratory depression, and hypothermia. Also other procedures associated with imaging such as animal preparation (e.g., fasting, premedication), blood sampling, and dosage/contrast agent injections can also affect physiology and animal welfare. All these factors are likely to have confounding effect on the outcome of the imaging studies and pose important concerns regarding the animal's well-being, particularly when imaging immune deprived animals or diseased animals. We will discuss these challenges and considerations during imaging to maximize efficacious data while promoting animal welfare. PMID- 29341024 TI - Advanced Contrast Agents for Multimodal Biomedical Imaging Based on Nanotechnology. AB - Clinical imaging modalities have reached a prominent role in medical diagnosis and patient management in the last decades. Different image methodologies as Positron Emission Tomography, Single Photon Emission Tomography, X-Rays, or Magnetic Resonance Imaging are in continuous evolution to satisfy the increasing demands of current medical diagnosis. Progress in these methodologies has been favored by the parallel development of increasingly more powerful contrast agents. These are molecules that enhance the intrinsic contrast of the images in the tissues where they accumulate, revealing noninvasively the presence of characteristic molecular targets or differential physiopathological microenvironments. The contrast agent field is currently moving to improve the performance of these molecules by incorporating the advantages that modern nanotechnology offers. These include, mainly, the possibilities to combine imaging and therapeutic capabilities over the same theranostic platform or improve the targeting efficiency in vivo by molecular engineering of the nanostructures. In this review, we provide an introduction to multimodal imaging methods in biomedicine, the sub-nanometric imaging agents previously used and the development of advanced multimodal and theranostic imaging agents based in nanotechnology. We conclude providing some illustrative examples from our own laboratories, including recent progress in theranostic formulations of magnetoliposomes containing omega-3 poly-unsaturated fatty acids to treat inflammatory diseases, or the use of stealth liposomes engineered with a pH sensitive nanovalve to release their cargo specifically in the acidic extracellular pH microenvironment of tumors. PMID- 29341025 TI - Multiple sclerosis: Prevalence and impact. AB - This article provides new information about multiple sclerosis (MS) using the 2010/2011 Neurological Conditions Prevalence File, the 2011/2012 Survey of Neurological Conditions in Institutions in Canada, and the 2011 Survey on Living with Neurological Conditions in Canada. An estimated 93,500 Canadians living in private households and 3,800 residents of long-term care institutions had been diagnosed with MS. Prevalence estimates were 159 and 418 cases per 100,000 population for men and women, respectively; 2.6 women reported MS for every man with the condition. Among the household population, MS was generally diagnosed between the ages of 20 and 49 (82%). For the majority (68%), MS was their only neurological condition. The impact of MS included pain that prevented activities, impairments in mobility, cognition or sleep, and limitations in social functioning. Almost two-thirds (64%) stated that MS affected their lives at least moderately. PMID- 29341026 TI - Trends and correlates of frequency of fruit and vegetable consumption, 2007 to 2014. AB - BACKGROUND: Eating fruit and vegetables is recommended as part of a healthy diet. This study describes trends in the frequency of fruit and vegetable consumption in Canada, the contribution of fruit juice to these trends, and correlates of the frequency of fruit and vegetable consumption. DATA AND METHODS: The data are from the annual Canadian Community Health Survey for the 2007-to-2014 period and pertain to the household population aged 12 or older. Weighted frequencies and cross-tabulations were used to estimate the average frequency of fruit and vegetable consumption by socio-demographic characteristics and body mass index, age-standardized to the 2014 Canadian population. Multivariate logistic regressions were used to examine correlates of frequency of fruit and vegetable intake in 2014. RESULTS: In 2014, Canadians reported consuming fruit and vegetables an average of 4.7 times a day, a slight, but significant, decrease from 5.0 times a day in 2007. The decrease over time was no longer significant when fruit juice was excluded (dropping to an average of 4.1 times a day in both years). Canadians drank less juice in 2014 than in 2007, a decline that was apparent across all age, sex and household income quintiles, all regions, and all weight categories. In 2014, Canadians who reported consuming fruit and vegetables 5 or more times a day tended to be female, in younger age groups, in the highest household income quintile, and neither overweight nor obese. DISCUSSION: Between 2007 and 2014, Canadians' reported frequency of fruit and vegetable consumption was consistently low. Correlates of fruit and vegetable consumption can be used to target nutrition policy and education efforts to improve intake. PMID- 29341027 TI - Developing Deep Learning Applications for Life Science and Pharma Industry. AB - Deep Learning has boosted artificial intelligence over the past 5 years and is seen now as one of the major technological innovation areas, predicted to replace lots of repetitive, but complex tasks of human labor within the next decade. It is also expected to be 'game changing' for research activities in pharma and life sciences, where large sets of similar yet complex data samples are systematically analyzed. Deep learning is currently conquering formerly expert domains especially in areas requiring perception, previously not amenable to standard machine learning. A typical example is the automated analysis of images which are typically produced en-masse in many domains, e. g., in high-content screening or digital pathology. Deep learning enables to create competitive applications in so far defined core domains of 'human intelligence'. Applications of artificial intelligence have been enabled in recent years by (i) the massive availability of data samples, collected in pharma driven drug programs (='big data') as well as (ii) deep learning algorithmic advancements and (iii) increase in compute power. Such applications are based on software frameworks with specific strengths and weaknesses. Here, we introduce typical applications and underlying frameworks for deep learning with a set of practical criteria for developing production ready solutions in life science and pharma research. Based on our own experience in successfully developing deep learning applications we provide suggestions and a baseline for selecting the most suited frameworks for a future-proof and cost effective development. PMID- 29341028 TI - Ameliorative Effects of Zataria Multiflora Hydro-Alcoholic extract on Gentamicin Induced Nephrotoxicity in Rats. AB - BACKGROUND: Nephrotoxicity is the major side effects of aminoglycoside antibiotics such as gentamicin. The aim of this study was to investigate the therapeutic effects of Z.multiflora (ZM) hydroalcoholic extract on gentamicin induced nephrotoxicity. METHODS: Twenty-eight male Wistar rats categorized into four groups: 1) the control group without injection, 2) the gentamicin treated group (100 mg/kg, i.p) 3) the gentamicin and Z. Multiflora treated group; Z. Multiflora extract(0.8 mg/ml in the drinking water) administered after gentamicin (100 mg/kg, i.p) 4) the normal saline and Z. Multiflora treated group; Z. Multiflora extract (0.8 mg/ml in the drinking water) administered after normal saline injection (2 ml/kg,i.p ). RESULTS: Post-treatment with ZM extract caused a significant reduction in the levels of plasma creatinine and blood urea nitrogen (BUN), absolute and fractional excretion of sodium, malondialdehyed (MDA) level in comparison to gentamicin group. In addition, ZM extract significantly increased creatinine clearance, urine osmolarity, and Renal blood flow (RBF) and the Ferric reducing ability of plasma (FRAP) level which had decreased compared to the control group as a result of treatment with gentamicin. CONCLUSION: The above result indicated that ZM extract improved renal toxicity of gentamicin via reducing oxidative stress, oxygen-free radicals, and lipid peroxidation. PMID- 29341029 TI - In Vitro and In Situ Absorption and Metabolism of Sesquiterpenes from Petasites hybridus Extracts. AB - Petasites hybridus extract is used in the treatment of seasonal allergic rhinitis. The aim of this study was to evaluate the active constituent petasin and its isomers isopetasin and neopetasin (petasins) in the P. hybridus extract Ze 339 for liberation, dissolution, absorption, and metabolism. The determination of pH-dependent thermodynamic solubility was performed via the shake-flask method. Petasins exhibited a low solubility that was pH independent. In vivo, the concentration of solute drugs is decreased continuously by intestinal absorption. Therefore, low solubility is not assumed to be critical for in vivo performance. Additionally, dissolution of an herbal medicinal product containing P. hybridus extract Ze 339 was assessed. Furthermore, high permeability through Caco-2 monolayers was evident. Using an in situ rat model, absorption capacity for petasins was found in all tested intestinal segments, namely, duodenum, jejunum, and ileum. Besides, high metabolism was evident both in Caco-2 monolayers and in the rat intestine. To compare intestinal and hepatic metabolism of petasins, in vitro enzyme assays using liver and intestinal cytosol and microsomes (S9 fraction) of rats and humans were performed. A significantly higher metabolic rate was found in the liver S9 fraction of both species compared with the intestinal S9 fraction. PMID- 29341030 TI - New Tirucallane-Type Triterpenoids from Guarea guidonia. AB - The aerial parts of Guarea guidonia afforded three new tirucallane-type triterpenoids: 3,4-seco-tirucalla-4(28),8(9),24(25)-trien-7alpha,11alpha dihydroxy-21,23-epoxy-3,11-olide, named guareolide (1: ), 3,4-seco-tirucalla 4(28),7(8),24(25)-trien-21-hydroxy-21,23-epoxy-3-oic acid, named guareoic acid A (2: ), and 3,4-seco-tirucalla-4(28),7(8),24(25)-trien-21,23-epoxy-3-oic acid, named guareoic acid B (3: ), of which 1: possessed an unusual seven-membered lactone ring. Seven known terpenes were also isolated and characterized as flindissone, 7-acetyldihydronomilin, picroquassin E, boscartol C, and cneorubins A, B, and X. Their structures were determined by spectroscopic methods including one-dimensional and two-dimensional nuclear magnetic resonance analysis and high resolution mass spectrometry. The isolates were investigated for their potential cytotoxic activity on Jurkat, HeLa, and MCF7 cancer cell lines. Flindissone and compound 2: showed an antiproliferative activity in all cell lines. Further studies revealed that flindissone, the most active compound, induced in Jurkat and HeLa cells both cytostatic and cytotoxic responses. PMID- 29341031 TI - Getting More Than You Paid For: Unauthorized "Natural" Substances in Herbal Food Supplements on EU Market. AB - As the population in the industrialized world develops preference for what is perceived as a natural and holistic way of disease treatment, the popularity and the number of food supplements on the market, including herbal ones, is experiencing an unprecedented rise. However, unlike herbal medicinal products, intended for treating or preventing disease, current legislation classifies food supplements as products intended for achieving nutritional or physiological effect and to supplement the normal diet. Accordingly, most food supplements are not to be associated with specific health claims. However, either due to the subtle suggestions by the producers or the wishful thinking of the consumers, certain pharmacological effects from food supplements are often expected. Medicinal plants included in food supplements usually do not produce dramatic and instant pharmacological effects. Therefore, in order to meet the expectation of their customers, some producers have turned to the illicit and dangerous practice of adulterating their products with synthetic adulterants, including naturally occurring molecules, having the desired activity. Such practice is prevalent in, although not limited to, food supplements intended for use as weight-loss aids, as well as for sport performance and libido enhancement. The review is focusing on naturally occurring alkaloids, phenylethanolamines, and their semi-synthetic derivatives in food supplements in the European Union as reported by the Rapid Alert System for Food and Feed. Their desired and undesired pharmacological effects, as well as the methods for their detection and quantification in food supplements, will be reviewed. PMID- 29341032 TI - [Epidemiology, Diagnosis and Treatment of Adult Patients with Nosocomial Pneumonia - Update 2017 - S3 Guideline of the German Society for Anaesthesiology and Intensive Care Medicine, the German Society for Infectious Diseases, the German Society for Hygiene and Microbiology, the German Respiratory Society and the Paul-Ehrlich-Society for Chemotherapy, the German Radiological Society and the Society for Virology]. AB - Nosocomial pneumonia (HAP) is a frequent complication of hospital care. Most data are available on ventilator-associated pneumonia. However, infections on general wards are increasing. A central issue are infections with multidrug resistant (MDR) pathogens which are difficult to treat in the empirical setting potentially leading to inappropriate use of antimicrobial therapy.This guideline update was compiled by an interdisciplinary group on the basis of a systematic literature review. Recommendations are made according to GRADE giving guidance for the diagnosis and treatment of HAP on the basis of quality of evidence and benefit/risk ratio.This guideline has two parts. First an update on epidemiology, spectrum of pathogens and antimicrobials is provided. In the second part recommendations for the management of diagnosis and treatment are given. New recommendations with respect to imaging, diagnosis of nosocomial viral pneumonia and prolonged infusion of antibacterial drugs have been added. The statements to risk factors for infections with MDR pathogens and recommendations for monotherapy vs combination therapy have been actualised. The importance of structured deescalation concepts and limitation of treatment duration is emphasized. PMID- 29341033 TI - [Lung Volume Reduction Surgery]. AB - Lung volume reduction surgery (LVRS) offers improvement in lung function, quality of life and even survival in well selected patients with severe emphysema. Patients with all types of emphysema morphology can profit from LVRS when certain selection criteria are present. Hyperinflation plays a key role in qualifying for the procedure. Candidate selection should be performed at high volume centers with a multidisciplinary emphysema board. Qualified thoracic surgeons together with pulmonologists and radiologists identify the suitable patient considering emphysema morphology with its target areas for resection, lung function parameters and cardiac comorbidities. This review outlines candidate selection, technique and results of LVRS to inform referring physicians how to screen und inform their patients. PMID- 29341034 TI - Therapeutic Assessment of Vulvar Squamous Intraepithelial Lesions with CO2 Laser Vaporization in Immunosuppressed Patients. AB - OBJECTIVE: A vulvar squamous intraepithelial lesion is deemed to be a preceding lesion to vulvar cancer, especially in women aged under 40 years, holders of an acquired or idiopathic immunosuppression. Several treatments have been used to treat these lesions. One of the aesthetically acceptable therapeutic methods is the CO2 laser vaporization. METHODS: In a transversal study, 46 records of immunosuppressed women bearing a vulvar low grade and/or high grade squamous intraepithelial lesion were selected out of the retrospective analysis, computing age, date of record, date of vulvar lesion treatment with CO2 laser, the time elapsed between the first and the last visit (in months), the number of visits, the presence or absence of condylomatous lesions in other female lower genital tract sites and whether or not recurrences and persistence of intraepithelial lesions have been noticed during the follow-up. RESULTS: Patients bearing vulvar high-grade squamous intraepithelial lesion and immunosuppressed (serum positive for human immunodeficiency virus [HIV] or with solid organs transplantation) have shown a higher level of persistence of lesions and a higher chance of having other areas of the female lower genital tract involved. CONCLUSION: While the CO2 laser vaporization is the most conservative method for the treatment of vulvar high-grade intraepithelial lesions, it is far from being the ideal method, due to the intrinsic infection features considered. The possibility of persistence, recurrences and spontaneous limited regression indicates that a closer surveillance in the long-term treated cases should be considered, in special for immunosuppressed patients. PMID- 29341035 TI - When an Unexpected Diagnosis Occurs: a Vaginal Premenopausal Sarcoma. AB - Vaginal cancer is a rare entity. The evidence on its management resides mostly in clinical cases or small case series. Of the histological types, the most frequent is the squamous cell carcinoma, followed by adenocarcinoma. But what to do when identifying an even more infrequent sarcoma in a premenopausal woman? In this study, we describe the case of a 53-year-old woman presenting with metrorrhagia for two months, who was evaluated after an intense episode. A necrotic and ulcerative vaginal swelling was documented and then submitted to biopsy, which revealed a vaginal sarcoma. The patient was referred to radiation therapy with 50 Gy (aiming to control the symptoms and to cause tumor reduction for posterior pelvic exenteration with intraoperative radiotherapy) and developed an extra pelvic metastization at the end of the treatment, which caused a fast negative outcome. Despite the initial poor prognosis, a chemo-irradiation or primary surgery regimen might have achieved (although with greater side effects) a better survival. This case-report entails a discussion about the strategies to manage vaginal sarcoma in advanced stage and in premenopausal women. PMID- 29341036 TI - Zika Virus Infection, Pregnancy and Microcephaly. PMID- 29341037 TI - Reply to: Zika Virus Infection, Pregnancy and Microcephaly. PMID- 29341038 TI - [The use of Deep Inferior Epigastric Vessels to Revascularise Free Flaps for Reconstruction of Complex Oncosurgical Defects of the Thigh and the Abdomen]. AB - BACKGROUND: The resection of large soft-tissue sarcoma requires reconstruction with free flaps. The choice of recipient vessels is crucial for the success of surgery. PATIENTS: We report four cases with large soft-tissue sarcomas with complex anatomical relationships: two tumors of the thigh surrounding the femoral neurovascular structures and two tumors of the abdomen with infiltration of the thorax and the abdomen. All cases received multimodal interdisciplinary treatment. The anterolateral thigh (ALT) flap and the latissimus dorsi (LD) flap were employed twice for defect coverage in this series. In all cases the deep inferior epigastric (DIE) vessels were transposed to the subcutaneous compartment and used as recipient vessels. RESULTS: The mean duration of surgery was 694 +/- 149 minutes. The mean weight of the tumor specimen was 3069 +/- 1267 g. Three flaps healed primarily and one exhibited a minor necrosis, which was treated by excision and secondary suture. There were no cases of abdominal herniation due to the transposition of vessels. CONCLUSION: Transposition of DIE-vessels to the subcutaneus compartment is a good alternative for free flap revascularisation in this patient group. In this position, the vessels are easily accessed and used for microsurgery. This technical modification increases the reconstructive possibilities in large and previously irradiated surgical defects. PMID- 29341039 TI - Covert hepatic encephalopathy leads to distinct alterations in the emotional state, independently of MELD-Score. AB - BACKGROUND AND AIMS: Covert hepatic encephalopathy impairs many aspects of quality of life, although its impact on the emotional state has not been evaluated. This study aims to evaluate the impact of covert hepatic encephalopathy on the emotional state and which factors are associated with changes in the emotional state in patients with cirrhosis. METHODS: This single center study included all patients with cirrhosis who underwent the portosystemic encephalopathy syndrome (PSE) test, critical flicker frequency, and emotional state assessment with the Eigenschaftsworterliste 60-S in 2011. Covert hepatic encephalopathy was defined by abnormal PSE. Parametric and non-parametric tests were used according to variable distribution. RESULTS: One hundred seventeen patients with cirrhosis were included (median age: 59 [interquartile range: 48 - 67], 32 % female, 74 % alcohol-associated). Seventy patients had covert hepatic encephalopathy (60 %) with a higher MELD (16 [interquartile range: 13 - 21], p = 0.001) and a higher Child-Pugh score (p = 0.003) compared to patients without encephalopathy. Patients with covert encephalopathy felt reduced mental activity (p = 0.004), lower general well-being (p = 0.001), and reduced extraversion (p = 0.021). The scores in the negative domains such as general lethargy (p = 0.031) and anxiousness/depressiveness (p = 0.033) were higher in patients with covert hepatic encephalopathy. There was no correlation between MELD and the emotional state. Patients with 2 pathological tests (critical flicker frequency and PSE) showed the most distinct alterations in the emotional state in the group of patients with covert hepatic encephalopathy. CONCLUSIONS: Patients with covert hepatic encephalopathy have an alteration of the emotional state, which is more marked in patients with 2 pathological tests. Interestingly, MELD had no impact on the emotional state. PMID- 29341040 TI - Risk factors for allograft failure in liver transplant recipients. AB - BACKGROUND: With regard to quality of life and organ shortage, follow-up after liver transplantation (LT) should consider risk factors for allograft failure in order to avoid the need for re-LT and to improve the long-term outcome of recipients. Therefore, the aim of this study was to explore potential risk factors for allograft failure after LT. MATERIAL AND METHODS: A total of 489 consecutive LT recipients who received follow-up care at the University Hospital of Muenster were included in this study. Database research was performed, and patient data were retrospectively reviewed. Risk factors related to donor and recipient characteristics potentially leading to allograft failure were statistically investigated using binary logistic regression analysis. Graft failure was determined as graft cirrhosis, need for re-LT because of graft dysfunction, and/or allograft-associated death. RESULTS: The mean age of recipients at the time of LT was 50.3 +/- 12.4 years, and 64.0 % were male. The mean age of donors was 48.7 +/- 15.5 years. Multivariable statistical analysis revealed male recipient gender (p = 0.04), hepatitis C virus infection (HCV) (p = 0.014), hepatocellular carcinoma (HCC) (p = 0.03), biliary complications after LT (p < 0.001), pretransplant diabetes mellitus (p = 0.03), and/or marked fibrosis in the initial protocol biopsy during follow-up (p = 0.001) to be recipient related significant and independent risk factors for allograft failure following LT. CONCLUSION: Male recipients, patients who received LT for HCV or HCC, those with pretransplant diabetes mellitus, and LT recipients with biliary complications are at high risk for allograft failure and thus should be monitored closely. PMID- 29341041 TI - Screening interval recommendations following a normal colonoscopy in individuals with a familial risk of colorectal cancer. AB - BACKGROUND: In view of the increased risk of developing colorectal cancer (CRC) in individuals with affected first-degree relatives (FDRs), the German evidence based S3 guideline recommends having the first screening colonoscopy early and then, following a normal examination, repeating it at least every 10 years. The aim of this analysis was to explore colonoscopy interval recommendations in clinical practice among individuals aged < 55 years with a familial risk of CRC. METHODS: We analyzed data from the FRIDA.Frankfurt study. Patients aged 40 - 54 years with at least 1 reported FDR with CRC (excluding suspected/known hereditary cancer syndromes) and a normal colonoscopy result (no findings) were included. Data on colonoscopist recommendations for intervals between subsequent colonoscopies were extracted from colonoscopy reports. RESULTS: Of 63 reports of normal colonoscopies, 20 (32 %) did not include a recommendation on when to undergo a further colonoscopy. Of 43 reports with recommendations, 40 (93 %) suggested an interval that was shorter than the recommended maximum interval in the guideline: 1 (2 %) was for a 3-year interval, 37 (86 %) were for 5-year intervals, and 2 (5 %) were for 8-year intervals. CONCLUSIONS: Although the low number of cases limits generalizability, the results indicate that recommended intervals in clinical practice are considerably shorter than the recommended maximum interval in the guideline. PMID- 29341042 TI - [Prescription and risks of proton pump inhibitor: fiction and facts]. AB - There is substantial discussion about inappropriate prescriptions and risks of proton pump inhibitor (PPI) therapy. This review critically reviews prescription manners regarding PPI both by general practitioners and in hospitals, demonstrates exit strategies after prolonged PPI treatment and evaluates clinically relevant risks of PPI therapy. PMID- 29341043 TI - Can Neonatal Brain MRI be Performed during Active Cooling? AB - OBJECTIVE: Due to logistical constraints, physicians traditionally delay diagnostic imaging for neonatal hypoxic-ischemic encephalopathy (HIE) until the neonate has completed all 72 hours of therapeutic hypothermia and rewarming. In some cases, neonates may require neuroimaging before 72 hours has passed. STUDY DESIGN: We present a case in which an MRI was acquired during active hypothermia. RESULTS: Upon return to the NICU, Baby X's temperature probe read 33.6 degrees, indicating that hypothermia was likely maintained at the target temperature. CONCLUSION: Active hypothermia is possible during MRI. PMID- 29341044 TI - Antenatal Medical Therapies to Improve Lung Development in Congenital Diaphragmatic Hernia. AB - Congenital diaphragmatic hernia (CDH) is a birth defect characterized by failed closure of the diaphragm, allowing abdominal viscera to herniate into the thoracic cavity and subsequently impair pulmonary and vascular development. Despite improving standardized postnatal management, there remains a population of severe CDH for whom postnatal care falls short. In these severe cases, antenatal surgical intervention (fetoscopic endoluminal tracheal occlusion [FETO]) may improve survival; however, FETO increases the risk of preterm delivery, is not widely offered, and still fails in half of cases. Antenatal medical therapies that stimulate antenatal pulmonary development are therefore interesting alternatives. By presenting the animal research underpinning novel antenatal medical therapies for CDH, and considering the applications of these therapies to clinical practice, this review will explore the future of antenatal CDH management with a focus on the phosphodiesterase-5 inhibitor sildenafil. PMID- 29341045 TI - Approach to Infants Born Through Meconium Stained Amniotic Fluid: Evolution Based on Evidence? AB - Meconium-stained amniotic fluid (MSAF) during delivery is a marker of fetal stress. Neonates born through MSAF often need resuscitation and are at risk of meconium aspiration syndrome (MAS), air leaks, hypoxic-ischemic encephalopathy, extracorporeal membrane oxygenation (ECMO), and death. The neonatal resuscitation approach to MSAF has evolved over the last three decades. Previously, nonvigorous neonates soon after delivery were suctioned under the vocal cords with direct visualization technique using a meconium aspirator. The recent neonatal resuscitation program (NRP) recommends against suctioning but favors resuscitation with positive pressure ventilation of nonvigorous neonates with MSAF. This recommendation is aimed to prevent delay in resuscitation and minimize hypoxia-ischemia often associated with MSAF. In this review, we discuss the pathophysiology, evolution and the evidence, randomized control trials, observational studies, and translational research to support these recommendations. The frequency of ECMO use for neonatal respiratory indication of MAS has declined over the years probably secondary to improvements in neonatal intensive care and reduction of postmaturity. Changes in resuscitation practices may have contributed to reduced incidence and severity of MAS. Larger randomized controlled studies are needed among nonvigorous infants with MSAF. However, ethical dilemmas and loss of equipoise pose a challenge to conduct such studies. PMID- 29341046 TI - Reduced Growth Hormone Secretion is Associated with Nonalcoholic Fatty Liver Disease in Obese Children. AB - The purpose of the study was to evaluate the relationship between arginine levodopa-induced growth hormone (GH) secretion and nonalcoholic fatty liver disease (NAFLD) in obese children. This study includes a total of 84 obese and 43 normal weight children. The obese subjects are divided into two groups based on the presence or absence of NAFLD. Clinical examination, anthropometric and laboratory examinations, and liver ultrasonography are assessed for all participants. The obese group had significantly lower peak stimulated GH (p<0.001) and lower insulin-like growth factor 1 (IGF-1) (p<0.001) compared with the control group. Children with NAFLD had significantly lower peak stimulated GH (p<0.001) and lower IGF-1 (p=0.022) compared with non-NAFLD group. Results from logistic regression model showed that only peak GH after stimulation test was inversely associated with NAFLD (p=0.015), while body mass index (BMI) was positively associated with NAFLD (p=0.03). Among 84 obese children and adolescents, peak stimulated GH was negatively associated with alanine aminotransferase (r=-0.394, p<0.001), BMI (r=-0.571, p<0.001), systolic blood pressure (r=-0.223, p=0.041), diastolic blood pressure (r=-0.272, p=0.012), homeostasis model assessment of insulin resistance (r=-0.369, p=0.001), insulin (r=-0.382, p<0.001), and positively associated with high density lipoprotein cholesterol (r=0.275, p=0.011). Our study confirms a significant inverse relationship between NAFLD and GH response to standard stimulation testing in obese children without known hypothalamic/pituitary disease. PMID- 29341047 TI - German Guideline for Idiopathic Pulmonary Fibrosis - Update on Pharmacological Therapies 2017. AB - Idiopathic pulmonary fibrosis (IPF) is a severe and often fatal disease with a median survival of 2 - 4 years after diagnosis. Since the publication of the German IPF guideline in 2013 new treatment trials have been published, necessitating an update of the pharmacological therapy of IPF. Different from the previous guideline, the GRADE system was discarded and replaced by the Oxford evidence classification system which allows a more differentiated judgement. The following pharmacological therapies were rated not suitable for the treatment of IPF patients (recommendation A; evidence 1-b): triple therapy with prednisolone, azathioprine and acetyl-cysteine; imatinib; ambrisentan; bosentan; macitentan. A less clear but still negative recommendation (B, 1-b) was attributed to the treatment of IPF with the phosphodiesterase-5-inhibitor sildenafil and acetyl cysteine monotherapy. In contrast to the international guideline antacid therapy as a general treatment for IPF was rated negative, based on conflicting results of recent analyses (recommendation C; evidence 4). An unanimous positive recommendation was granted for the antifibrotic drugs nintedanib and pirfenidone for the treatment of IPF (A, 1-a). For some open questions in the management of IPF patients for which firm evidence is lacking the guideline also offers recommendations based on expert consensus. PMID- 29341048 TI - Intrapartum Care Working Patterns of Midwives: The Long Road to Models of Care in Germany. AB - INTRODUCTION: Midwifery models of care help to enhance perinatal health outcomes, women's satisfaction, and continuity of care. Despite the ubiquitous presence of certified midwives at births in Germany, no research has investigated the diversity of midwives' practice patterns. Describing the variety of working patterns through which midwives provide intrapartum care may contribute to improving the organisation of midwifery services. METHODS: This cross-sectional survey took place in the region of Hannover and Hildesheim, Germany. Midwives attending births and practicing in hospitals and/or out-of-hospital were able to participate. Midwives who did not attend births were excluded. We assessed midwives' scope of services, practice locations, employment patterns, continuity of care, midwife-led births, and midwives' level of agreement with core values of midwifery care. The response rate of the survey was 32.7 % (69/211). RESULTS: We found that midwifery care services can be described according to midwives' employment patterns. The majority of midwives were employed in a hospital to provide intrapartum care (74.2 %, n = 49), and most also independently offered one or more antenatal and/or postpartum service/s. Only 25.8 % (n = 17) of midwives offered their services independently (laborist model of care). Independent midwives attended births in all three possible settings: hospital, free-standing birth centres and home. Significantly more independent midwives than employed midwives offered antenatal care and lactation consulting. Compared to employed midwives, significantly more independent midwives provided antenatal, intrapartum, and postpartum care to the same women, were more likely to know women before labour, and to offer one-to-one care during labour. DISCUSSION: The most common practice pattern among surveyed midwives was 'employment in a hospital' for provision of intrapartum care with additional postpartum and few antenatal services provided on an independent basis. Midwives who worked solely independently reported more continuity and one-to-one intrapartum care with women. Most midwives did not work in patterns that offered continuity of care or consistently provide one-to-one care. Future research should assess whether women in Germany desire more services similar to caseload midwifery. PMID- 29341049 TI - [Long-term Outcome after Prenatal Drug Exposure]. AB - Although prenatal exposure to opioids, cannabinoids and cocaine is a frequent problem, only scarce data have been published on the long-term outcome in affected children and adolescents. While opioid-exposed children up to the age of 2 years show a reduced motor developmental pattern, data from meta-analyses up to adolescence show a strong trend for reduced performance with regard to cognitive function and behavior. Follow-up data after intrauterine cannabinoid exposure indicate reduced cognitive and reading abilities as well as abnormal findings in complex planning tests. Externalizing pathologies have been observed more frequently in boys. Prenatal cocaine exposure results in reduced cognitive and verbal development up to adolescence; however, differences are small but significant in meta-analyses. Interpretation of follow-up data with partially contradictory results may reflect methodological differences and a number of modifying co-factors, e.g., social conditions during the childhood period. These data should encourage further primary and secondary preventive attempts. PMID- 29341050 TI - [Reading is good for you!] PMID- 29341051 TI - [The Journal in 2017]. PMID- 29341052 TI - [Routine outcome monitoring in anxiety disorders: diagnosis-specific versus generic assessment instruments]. AB - BACKGROUND: Mental health institutions increasingly utilise routine outcome monitoring (rom) in order to assess treatment effectiveness. It remains unclear which instruments are more sensitive to change with regard to rom in patients with an anxiety disorder: diagnosis-specific or generic instruments.
AIM: To compare the sensitivity of diagnosis-specific versus generic rom-instruments in patients with an anxiety disorder.
METHOD: 160 adults with an anxiety disorder received cognitive behavioural therapy at the Altrecht Academic Anxiety Centre. Approximately half of the population also received medication. Patients completed an assessment both before and after treatment. This consisted of two generic instruments (Outcome Questionnaire (oq-45) and Brief Symptom Inventory (bsi)) and two diagnosis-specific instruments, determined by the main diagnosis.
RESULTS: The differences between pre- and post-treatment assessments were generally larger for the generic bsi and diagnosis-specific instruments than for the generic oq-45.
CONCLUSION: When assessed after cognitive behavioural therapy, the (generic) bsi and diagnosis-specific instruments indicated larger progress than the oq-45. The bsi might be a relatively diagnosis-specific measure for anxiety disorders. when selecting an instrument for assessment, both the intended goal of treatment (symptom reduction or improvement in quality of life) and other reasons for assessment should be taken into consideration. The bsi or diagnosis-specific instruments are preferred if the goal is to assess the change in specific anxiety symptoms. PMID- 29341053 TI - [The use of anticonvulsants and the levels of folate, vitamin B12 and homocysteine]. AB - BACKGROUND Patients with epilepsy who use anticonvulsants frequently show low levels of folate and vitamin B12 and high levels of homocysteine. Patients with bipolar disorder use some anticonvulsants as mood stabilisers.
AIM: To determine whether some anticonvulsants lower folate and vitamin B12 and raise homocysteine levels.
METHOD: Systematic literature search to determine the relation between the anticonvulsants valproic acid, carbamazepine, lamotrigine and topiramate on the one hand and blood levels of folate, vitamin B12 and homocysteine on the other hand.
RESULTS: The vast majority of studies in adults and children showed a correlation between use of anticonvulsant carbamazepine and decrease of the folate level. Hardly any of the studies that examined the effect of valproic acid on folate levels found a correlation. There was next to no evidence of a correlation between the use of carbamazepine and a low vitamin B12 level in adults or children. In adults and children the use of valproic acid was found to correlate with a higher vitamin B12 level. Nearly all studies found an increase in homocysteine in adults and children using carbamazepine. Among the users of valproic acid, it was only children who showed a clear association with a rise in homocysteine level. The results for adults were contradictory. We were unable to make any clear statement about topiramate or lamotrigine because there have been very few publications about these anticonvulsants.
CONCLUSION: In adults and children with epilepsy use of carbamazepine is associated with a decrease of folate, valproic acid with a rise in the vitamin B12 level, and carbamazepine with an increase in homocysteine. Valproic acid showed only in children an association with the rise of the homocysteine level. Psychiatrists may find it advisable to control the levels of folate and homocysteine in adults and children who are taking carbamazepine and to measure homocysteine level in children taking valproic acid. PMID- 29341054 TI - [A relational ethical model for the assessment of decision-making competence in psychiatry]. AB - BACKGROUND: Nowadays, partly due to legislation, decision-making competence is playing an ever-increasing role in psychiatry. So far, however, there are no clear criteria for evaluating the actual competence of the procedure.
AIM: To develop a relational ethical model, including criteria and methodology, which can be used to assess and enhance decision-making competence mainly from a relational and ethical perspective.
METHOD: Combination of a review of the literature and ethical reflection. First of all, a limited study was made of the literature relating to the concept of and criteria for decision-making competence. On the basis of the literature and relational ethical reflection, ten criteria were developed for decision-making competence and a method was devised for assessing the procedure.
RESULTS: The criteria that have to be satisfied can be summarised as follows: the persons involved must understand the information, and must be able to apply it to their own situation. They must be able to gain insight into their own situation and be able to weigh up the available options, and be able to estimate consequences for themselves, as well as for others. They must be able to motivate choices in a sensible and comprehensible manner without being subject to coercive influences coming from internal and external sources. Participants' choices should be motivated on the basis of their own personal values. The decision-making competence is assessed and enhanced by giving a score to the individual criteria and by making an overall evaluation. This is achieved by a dialogue including all the persons involved: the care seeker (as far as possible), close relatives and the care providers.
CONCLUSION: The persons involved can attain greater objectivity by exchanging views orally on the ten proposed criteria for decision-making competence. PMID- 29341055 TI - [Hallucinations and art]. AB - BACKGROUND Hallucinations and art appear to be inextricably connected, and yet the question remains in how far artists make use of hallucinations for their work in daily practice.
AIM: To chart the ways in which the fine arts are influenced by hallucinations, an explorative literature search was carried out. METHOD The search was carried out in PubMed, Google, and the historical literature.
RESULTS: Some famous examples of artists who drew on hallucinations for their work, are Hildegard of Bingen, William Blake, and Yayoi Kusama. Especially among the surrealists, we also find indications of the use of pareidolias, metamorphopsias, and other positive disorders of visual perception.
CONCLUSION: In the art literature, the term hallucination is often used in a broader sense than in medicine. As a consequence, the suggestion that hallucinations would be lying at the basis of many works of art cannot be confirmed, even though some spectacular examples can certainly be pointed out. PMID- 29341056 TI - [Researching crisis plans in long-term mental health care: more complicated than expected]. AB - BACKGROUND Crisis plans are highly valued because they can help to reduce the number of persons subjected to compulsory treatment in mental health care. The evidence however that crisis plans are effective is scarce, partly due to insufficient implementation by professionals.
AIM: To assess the fidelity, relevance and applicability of crisis plans and to estimate to what extent such plans are appreciated by those working in long-term care.
METHOD: Semi structured interview with patients and nurses.
RESULTS: The crisis plans were judged to be clearly worded and the fidelity was high, but our findings cannot be considered as representative because the response rate (12/144; 8.3%) of the patients was so low.
CONCLUSION: Despite the accessibility of our study design, patient response rates were very low. This demonstrates that clinical research in long-term clinical health care clinical research can prove to be more complicated than we anticipated. If the research participation rate among these very ill and vulnerable population is commonly so low, it will be extremely difficult for us to provide evidence-based care for these patients. PMID- 29341057 TI - [Suicidal adolescents can benefit from Family Group Conferences]. AB - A risk factor among suicidal adolescents is generally their inability to form and maintain relationships with other people. In the case that we investigated, the technique known as Family Group Conference (FGC) was used successfully to break through the adolescent's passivity and social isolation. The FGC also helped to alter the adolescent's conviction of being a burden to relatives, friends and other people. The results are in line with additional studies that used FGC with other target groups. This case study suggests that FGC is a promising type of intervention that can reduce the passivity and isolation of suicidal adolescents, strengthening their relationships and boosting a feeling of belonging. These factors as well as the results of the case investigated are currently stimulating further research into the use of FGCs to foster feelings of belonging and togetherness among suicidal adolescents. PMID- 29341058 TI - [Takotsubo cardiomyopathy and catatonia in a patient with psychotic depression]. AB - Takotsubo cardiomyopathy (tcmp) is an acute, reversible disruption of the left ventricular systolic function. In many respects the clinical presentation closely resembles acute coronary syndromes (myocardial infarction). tcmp is a syndrome with a pathophysiology that is not fully understood and which seems to be closely associated with psychiatric disorders or psychological problems. We present a case in which a patient with several risk factors developed a tcmp and a depression with psychotic features, followed by catatonia. We describe the syndrome, make some pathophysiological hypotheses and point to possible connections with psychiatric disorders and psychological factors. PMID- 29341059 TI - Down-regulated REIC expression in lung carcinogenesis: a molecular target for gene therapy. AB - REIC (Reduced Expression in Immortalized Cells) gene is down-regulated in immortalized cells, compared with the normal parental counterparts. Its encoding protein could inhibit colony formation, tumor growth, and induce apoptosis. To investigate the roles of REIC expression in lung cancer, we examined REIC expression in lung cancer cells and tissues by RT-PCR or Western blot, and observed the effects of both recombinant REIC exposure and REIC overexpression on the aggressive phenotypes of lung cancer cells. It was found that the demethylation of REIC promoter by 5-Aza-dC could reserve its mRNA expression in lung cancer cells (P<0.05). There was a lower REIC mRNA expression in lung cancer than that in matched normal tissue (P<0.05). Recombinant REIC treatment enhanced the proliferation of lung cancer cells (P<0.05), but versa for REIC overexpression (P<0.05). Both recombinant REIC treatment and REIC overexpression induced apoptosis, and inhibited the migration and invasion of SQ-5 and KJ cells (P<0.05). Immunohistochemically, there was a positive correlation between REIC and Caspase-3 expression in lung cancer (P<0.05). According to Kaplan-Meier plotter, REIC mRNA overexpression was found to positively correlate with overall, progression-free and post- progression survival rates of lung cancer patients (P<0.05), even stratified by sex, histological subtyping, grading, TNM staging, chemotherapy, radiotherapy, or smoking. These findings suggested that the down regulated REIC expression might be involved in lung carcinogenesis due to its promoter methylation. Both recombinant REIC exposure and REIC overexpression might reverse the aggressive phenotypes of lung cancer cells. REIC may be employed as a potential target of gene therapy for lung cancer. PMID- 29341060 TI - Rationale of decreasing low-density lipoprotein cholesterol below 70 mg/dL in patients with coronary artery disease: A retrospective virtual histology. Intravascular ultrasound study. AB - BACKGROUND: The associations between statin and coronary plaque compositional changes were reported according to the use of high dose or not. An evaluation of the impact of low-density lipoprotein cholesterol (LDL-C) < 70 mg/dL by using real world dosages of statin on coronary plaque composition was undertaken. METHODS: The study subjects consisted of 61 patients (mean 59.9 years old, 45 males) who underwent percutaneous coronary intervention, baseline and follow-up (F/U; mean 8.4 months) virtual histology-intravascular ultrasound (VH-IVUS) examination. Change of plaque composition at peri-stent area, which was selected in order to measure the identical site at F/U study, was compared according to the F/U LDL-C level. RESULTS: Body mass index, prevalence of dyslipidemia, baseline total cholesterol and baseline LDL-C were significantly lower in F/U LDL C < 70 mg/dL group (14 segments in 10 patients) than F/U LDL-C ? 70 mg/dL group (79 segments in 51 patients). F/U high-density lipoprotein cholesterol (HDL-C, OR 1.06, 95% CI 1.00-1.11, p = 0.054) and F/U LDL-C < 70 mg/dL (OR 3.43, 95% CI 0.97 12.17, p = 0.056) showed strong tendency of regression of necrotic core volume (NCV) >= 10%. In multivariable logistic regression analysis, F/U HDL-C (OR 1.07, 95% CI 1.01-1.14, p = 0.020) and F/U LDL-C level < 70 mg/dL (OR 8.02, 95% CI 1.58 40.68, p = 0.012) were the independent factors for regression of NCV ? 10%. CONCLUSIONS: F/U LDL-C level < 70 mg/dL with any types of statins and increase of HDL-C were associated with regression of NCV ? 10% in patients with coronary artery disease. PMID- 29341061 TI - Pericardial effusion unrelated to surgery is a predictor of mortality in heart transplant patients. AB - BACKGROUND: Hemodynamically irrelevant pericardial effusion (PeEf) is a predictor of adverse outcome in heart failure patients. The clinical relevance of a PeEf unrelated to surgery in heart transplant patients remains unknown. This study assesses the prognostic value of PeEf occurring later than one year after transplantation. METHODS: All patients undergoing heart transplantation in Zurich between 1989 and 2012 were screened. Cox proportional hazard models were used to analyse mortality (primary) and hospitalization (secondary endpoint). PeEf time points were compared to baseline for rejection, immunosuppressants, tumours, inflammation, heart failure, kidney function, hemodynamic, and echocardiographic parameters. RESULTS: Of 152 patients (mean age 48.3 +/- 11.9), 25 developed PeEf. Median follow-up period was 11.9 (IQR 5.8-17) years. The number of deaths was 6 in the PeEf group and 46 in the non-PeEf group. The occurrence of PeEf was associated with a 2.5-fold increased risk of death (HR 2.49, 95% CI 1.02-6.13, p = 0.046) and hospitalization (HR 2.53, 95% CI 1.57-4.1, p = 0.0002). CONCLUSIONS: This study reveals that the finding of hemodynamically irrelevant PeEf in heart transplant patients is a predictor of adverse outcome, suggesting that a careful clinical assessment is warranted in heart transplant patients exhibiting small PeEf. PMID- 29341062 TI - Reflectance confocal microscopy for the diagnosis of Langerhans cell histiocytosis. PMID- 29341063 TI - Localized inflammatory reactions at sites of subcutaneous methotrexate injections during treatment with ultraviolet B. PMID- 29341064 TI - Can Addressing Personality Change Enhance Cognitive Functioning and Delay Development of Mild Cognitive Impairment? PMID- 29341065 TI - The use of methotrexate in adolescents: contraception, confidentiality and consent. PMID- 29341066 TI - Cerebral near-infrared spectroscopy (NIRS) for perioperative monitoring of brain oxygenation in children and adults. AB - BACKGROUND: Various techniques have been employed for the early detection of perioperative cerebral ischaemia and hypoxia. Cerebral near-infrared spectroscopy (NIRS) is increasingly used in this clinical scenario to monitor brain oxygenation. However, it is unknown whether perioperative cerebral NIRS monitoring and the subsequent treatment strategies are of benefit to patients. OBJECTIVES: To assess the effects of perioperative cerebral NIRS monitoring and corresponding treatment strategies in adults and children, compared with blinded or no cerebral oxygenation monitoring, or cerebral oxygenation monitoring based on non-NIRS technologies, on the detection of cerebral oxygen desaturation events (CDEs), neurological outcomes, non-neurological outcomes and socioeconomic impact (including cost of hospitalization and length of hospital stay). SEARCH METHODS: We searched the Cochrane Central Register of Controlled Trials (CENTRAL 2016, Issue 12), Embase (1974 to 20 December 2016) and MEDLINE (PubMed) (1975 to 20 December 2016). We also searched the World Health Organization (WHO) International Clinical Trials Registry Platform for ongoing studies on 20 December 2016. We updated this search in November 2017, but these results have not yet been incorporated in the review. We imposed no language restriction. SELECTION CRITERIA: We included all relevant randomized controlled trials (RCTs) dealing with the use of cerebral NIRS in the perioperative setting (during the operation and within 72 hours after the operation), including the operating room, the postanaesthesia care unit and the intensive care unit. DATA COLLECTION AND ANALYSIS: Two authors independently selected studies, assessed risk of bias and extracted data. For binary outcomes, we calculated the risk ratio (RR) and its 95% confidence interval (CI). For continuous data, we estimated the mean difference (MD) between groups and its 95% CI. As we expected clinical and methodological heterogeneity between studies, we employed a random-effects model for analyses and we examined the data for heterogeneity (I2 statistic). We created a 'Summary of findings' table using GRADEpro. MAIN RESULTS: We included 15 studies in the review, comprising a total of 1822 adult participants. There are 12 studies awaiting classification, and eight ongoing studies.None of the 15 included studies considered the paediatric population. Four studies were conducted in the abdominal and orthopaedic surgery setting (lumbar spine, or knee and hip replacement), one study in the carotid endarterectomy setting, and the remaining 10 studies in the aortic or cardiac surgery setting. The main sources of bias in the included studies related to potential conflict of interest from industry sponsorship, unclear blinding status or missing participant data.Two studies with 312 participants considered postoperative neurological injury, however no pooled effect estimate could be calculated due to discordant direction of effect between studies (low-quality evidence). One study (N = 126) in participants undergoing major abdominal surgery reported that 4/66 participants experienced neurological injury with blinded monitoring versus 0/56 in the active monitoring group. A second study (N = 195) in participants having coronary artery bypass surgery reported that 1/96 participants experienced neurological injury in the blinded monitoring group compared with 4/94 participants in the active monitoring group.We are uncertain whether active cerebral NIRS monitoring has an important effect on the risk of postoperative stroke because of the low number of events and wide confidence interval (RR 0.25, 95% CI 0.03 to 2.20; 2 studies, 240 participants; low-quality evidence).We are uncertain whether active cerebral NIRS monitoring has an important effect on postoperative delirium because of the wide confidence interval (RR 0.63, 95% CI 0.27 to 1.45; 1 study, 190 participants; low quality evidence).Two studies with 126 participants showed that active cerebral NIRS monitoring may reduce the incidence of mild postoperative cognitive dysfunction (POCD) as defined by the original studies at one week after surgery (RR 0.53, 95% CI 0.30 to 0.95, I2 = 49%, low-quality evidence).Based on six studies with 962 participants, there was moderate-quality evidence that active cerebral oxygenation monitoring probably does not decrease the occurrence of POCD (decline in cognitive function) at one week after surgery (RR 0.62, 95% CI 0.37 to 1.04, I2 = 80%). The different type of monitoring equipment in one study could potentially be the cause of the heterogeneity.We are uncertain whether active cerebral NIRS monitoring has an important effect on intraoperative mortality or postoperative mortality because of the low number of events and wide confidence interval (RR 0.63, 95% CI 0.08 to 5.03, I2= 0%; 3 studies, 390 participants; low quality evidence). There was no evidence to determine whether routine use of NIRS based cerebral oxygenation monitoring causes adverse effects. AUTHORS' CONCLUSIONS: The effects of perioperative active cerebral NIRS monitoring of brain oxygenation in adults for reducing the occurrence of short-term, mild POCD are uncertain due to the low quality of the evidence. There is uncertainty as to whether active cerebral NIRS monitoring has an important effect on postoperative stroke, delirium or death because of the low number of events and wide confidence intervals. The conclusions of this review may change when the eight ongoing studies are published and the 12 studies awaiting assessment are classified. More RCTs performed in the paediatric population and high-risk patients undergoing non cardiac surgery (e.g. neurosurgery, carotid endarterectomy and other surgery) are needed. PMID- 29341067 TI - Vitamin E for antipsychotic-induced tardive dyskinesia. AB - BACKGROUND: Antipsychotic (neuroleptic) medication is used extensively to treat people with chronic mental illnesses. Its use, however, is associated with adverse effects, including movement disorders such as tardive dyskinesia (TD) - a problem often seen as repetitive involuntary movements around the mouth and face. Vitamin E has been proposed as a treatment to prevent or decrease TD. OBJECTIVES: The primary objective was to determine the clinical effects of vitamin E in people with schizophrenia or other chronic mental illness who had developed antipsychotic-induced TD.The secondary objectives were:1. to examine whether the effect of vitamin E was maintained as duration of follow-up increased;2. to test the hypothesis that the use of vitamin E is most effective for those with early onset TD (less than five years) SEARCH METHODS: We searched the Cochrane Schizophrenia Group Trials Register (July 2015 and April 2017), inspected references of all identified studies for further trials and contacted authors of trials for additional information. SELECTION CRITERIA: We included reports if they were controlled trials dealing with people with antipsychotic-induced TD and schizophrenia who remained on their antipsychotic medication and had been randomly allocated to either vitamin E or to a placebo, no intervention, or any other intervention. DATA COLLECTION AND ANALYSIS: We independently extracted data from these trials and we estimated risk ratios (RR) or mean differences (MD), with 95% confidence intervals (CI). We assumed that people who left early had no improvement. We assessed risk of bias and created a 'Summary of findings' table using GRADE. MAIN RESULTS: The review now includes 13 poorly reported randomised trials (total 478 people), all participants were adults with chronic psychiatric disorders, mostly schizophrenia, and antipsychotic-induced TD. There was no clear difference between vitamin E and placebo for the outcome of TD: not improved to a clinically important extent (6 RCTs, N = 264, RR 0.95, 95% CI 0.89 to 1.01, low quality evidence). However, people allocated to placebo may show more deterioration of their symptoms compared with those given vitamin E (5 RCTs, N = 85, RR 0.23, 95% CI 0.07 to 0.76, low-quality evidence). There was no evidence of a difference in the incidence of any adverse effects (9 RCTs, N = 205, RR 1.21, 95% CI 0.35 to 4.15, very low-quality evidence), extrapyramidal adverse effects (1 RCT, N = 104, MD 1.10, 95% CI -1.02 to 3.22, very low-quality evidence), or acceptability of treatment (measured by participants leaving the study early) (medium term, 8 RCTs, N = 232, RR 1.07, 95% CI 0.64 to 1.80, very low-quality evidence). No trials reported on social confidence, social inclusion, social networks, or personalised quality of life, outcomes designated important to patients. There is no trial-based information regarding the effect of vitamin E for those with early onset of TD. AUTHORS' CONCLUSIONS: Small trials of limited quality suggest that vitamin E may protect against deterioration of TD. There is no evidence that vitamin E improves symptoms of this problematic and disfiguring condition once established. New and better trials are indicated in this under researched area, and, of the many adjunctive treatments that have been given for TD, vitamin E would be a good choice for further evaluation. PMID- 29341068 TI - Analysis of hypo- and hypermagnesemia in an intensive care unit cohort. AB - INTRODUCTION: The aim of this study was to evaluate if magnesium deviations correlate with higher 180 day overall mortality or increased morbidity, compared to controls. METHODS: We conducted a retrospective study on 5369 patients with 22,003 magnesium values treated at the Adult Intensive Care Unit at Skane University Hospital, Lund, Sweden during 2006-2014. The patients were retrospectively divided into a control group with only normal magnesium values 0.7-1.0 mmol/l, and three study groups; hypomagnesemic; Mg2+ < 0.7 mmol/l, hypermagnesemic; Mg2+ > 1.0 mmol/l and an unstable mixed group showing both hypo/hypermagnesemia. Gender, age, disease severity represented by maximum organ system SOFA score, renal SOFA score, lowest potassium value and diagnoses classes were included in a Cox hazard model in order to adjust for confounding factors, with time to death in the first 180 days from the ICU admission as outcome. RESULTS: The hypermagnesemic study group and the mixed group showed increased hazard ratios for mortality; 1.4 (CI 98.3% 1.2, 1.6, P < 0.0001) and 2.1 (CI 98.3% 1.2, 2.8, P < 0.0001) respectively, compared to controls, while the hypomagnesemic group did not reach significance. In addition, patients in the hypermagnesemic and the mixed groups are older, more ill with significantly higher EMR and SOFA scores and show significantly longer ventilator times and ICU stays, compared to controls. CONCLUSIONS: Patients with magnesium deviations are more ill compared to patients with explicitly normal magnesium values throughout the ICU stay. Cox analysis suggests that the magnesium deviation itself might have an impact on mortality. PMID- 29341069 TI - Reliability and validity of the instrument for scoring clinical outcomes of research for epidermolysis bullosa (iscorEB). AB - BACKGROUND: Epidermolysis bullosa (EB) is a group of rare and currently incurable genetic blistering disorders. As more pathogenic-driven therapies are being developed, there is an important need for EB-specific validated outcomes measures designed for use in clinical trials. OBJECTIVES: To test the reliability and construct validity of an instrument for scoring clinical outcomes of research for EB (iscorEB), a new combined clinician- and patient-reported outcomes tool. METHODS: We conducted an observational study consisting of independent 1-day assessments (six assessors) at two academic hospitals. The assessments consisted of iscorEB clinician (iscorEB-c), Birmingham Epidermolysis Bullosa Severity (BEBS) and global severity assessment for physicians; and iscorEB patient (iscorEB-p), Quality of Life evaluation in Epidermolysis Bullosa and Children's Dermatology Life Quality Index for patients. Construct validity and intraclass correlation coefficients (ICCs) for interobserver, intraobserver and test-retest reliability were calculated. RESULTS: Overall, 31 patients with a mean age of 19.5 years (1.8-45.2) were included. Disease severity was mild in 42% of cases, moderate in 29% and severe in 29%. The interobserver ICC was 0.96 for both the clinician-reported section of iscorEB-c and BEBS. The ICC for intraobserver reliability was 0.91 and 0.70 for the skin and mucosal domains of iscorEB-c, respectively. Cronbach's alpha for iscorEB-c was 0.89. The test-retest reliability of iscorEB-p was 0.97 and Cronbach's alpha was 0.84. The clinical score differentiated between subjects with mild, moderate and severe disease, and both clinical and patient subscores discriminated between recessive dystrophic EB and other EB subtypes. CONCLUSIONS: iscorEB has robust reliability and construct validity, including strong ability to distinguish EB types and severities. Further studies are planned to test its responsiveness to change. PMID- 29341072 TI - Epidermal melanocytes in segmental vitiligo show altered expression of E cadherin, but not P-cadherin. PMID- 29341070 TI - Personality Changes During the Transition from Cognitive Health to Mild Cognitive Impairment. AB - BACKGROUND/OBJECTIVES: Behavioral problems in individuals with Alzheimer's disease (AD) impose major management challenges. Current prevention strategies are anchored to cognitive outcomes, but behavioral outcomes may provide another, clinically relevant opportunity for preemptive therapy. We sought to determine whether personality changes that predispose to behavioral disorders arise during the transition from preclinical AD to mild cognitive impairment (MCI). DESIGN: Longitudinal observational cohort study. SETTING: Academic medical center. PARTICIPANTS: Members of an apolipoprotein E (APOE) E4 genetically enriched cohort of Maricopa County residents who were neuropsychiatrically healthy at entry (N = 277). Over a mean interval of 7 years, 25 who developed MCI and had the Neuroticism, Extraversion, and Openness Personality Inventory-Revised (NEO-PI R) before and during the MCI transition epoch were compared with 252 nontransitioners also with serial NEO-PI-R administrations. INTERVENTION: Longitudinal administration of the NEO-PI-R and neuropsychological test battery. MEASUREMENTS: Change in NEO-PI-R factor scores (neuroticism, extraversion, openness, agreeableness, conscientiousness) from entry to the epoch of MCI diagnosis or an equivalent follow-up duration in nontransitioners. RESULTS: NEO PI-R neuroticism T-scores increased significantly more in MCI transitioners than in nontransitioners (mean 2.9, 95% confidence interval (CI) = 0.9-4.9 vs 0, 95% CI = -0.7-0.7, P = .02), and openness decreased more in MCI transitioners than in nontransitioners (-4.8, 95% CI = -7.3 to -2.4 vs -1.0, 95% CI = -1.6 to -0.4, P < .001). Concurrent subclinical but statistically significant changes in behavioral scores worsened more in MCI transitioners than nontransitioners for measures of depression, somatization, irritability, anxiety, and aggressive attitude. CONCLUSION: Personality and subclinical behavioral changes begin during the transition from preclinical AD to incident MCI and qualitatively resemble the clinically manifest behavioral disorders that subsequently arise in individuals with frank dementia. PMID- 29341071 TI - Anticholinergic medication for antipsychotic-induced tardive dyskinesia. AB - BACKGROUND: Antipsychotic (neuroleptic) medication is used extensively to treat people with serious mental illnesses. However, it is associated with a wide range of adverse effects, including movement disorders. Because of this, many people treated with antipsychotic medication also receive anticholinergic drugs in order to reduce some of the associated movement side-effects. However, there is also a suggestion from animal experiments that the chronic administration of anticholinergics could cause tardive dyskinesia. OBJECTIVES: To determine whether the use or the withdrawal of anticholinergic drugs (benzhexol, benztropine, biperiden, orphenadrine, procyclidine, scopolamine, or trihexylphenidyl) are clinically effective for the treatment of people with both antipsychotic-induced tardive dyskinesia and schizophrenia or other chronic mental illnesses. SEARCH METHODS: We retrieved 712 references from searching the Cochrane Schizophrenia Group's Study-Based Register of Trials including the registries of clinical trials (16 July 2015 and 26 April 2017). We also inspected references of all identified studies for further trials and contacted authors of trials for additional information. SELECTION CRITERIA: We included reports identified in the search if they were controlled trials dealing with people with antipsychotic induced tardive dyskinesia and schizophrenia or other chronic mental illness who had been randomly allocated to (a) anticholinergic medication versus placebo (or no intervention), (b) anticholinergic medication versus any other intervention for the treatment of tardive dyskinesia, or (c) withdrawal of anticholinergic medication versus continuation of anticholinergic medication. DATA COLLECTION AND ANALYSIS: We independently extracted data from included trials and we estimated risk ratios (RR) with 95% confidence intervals (CIs). We assumed that people who left early had no improvement. We assessed risk of bias and created a 'Summary of findings' table using GRADE. MAIN RESULTS: The previous version of this review included no trials. We identified two trials that could be included from the 2015 and 2017 searches. They randomised 30 in- and outpatients with schizophrenia in the USA and Germany. Overall, the risk of bias was unclear, mainly due to poor reporting: allocation concealment was not described; generation of the sequence was not explicit; studies were not clearly blinded; and outcome data were not fully reported.Findings were sparse. One study reported on the primary outcomes and found that significantly more participants allocated to procyclidine (anticholinergic) had not improved to a clinically important extent compared with those allocated to isocarboxazid (MAO-inhibitor) after 40 weeks' treatment (1 RCT, n = 20; RR 4.20, 95% CI 1.40 to 12.58; very low quality evidence); that there was no evidence of a difference in the incidence of any adverse effects (1 RCT, n = 20; RR 0.33, 95% CI 0.02 to 7.32; very low quality evidence); or acceptability of treatment (measured by participants leaving the study early) (1 RCT, n = 20; RR 0.33, 95% CI 0.02 to 7.32; very low quality evidence). The other trial compared anticholinergic withdrawal with anticholinergic continuation and found no evidence of a difference in the incidence of acceptability of treatment (measured by participants leaving the study early) (1 RCT, n = 10; RR 2.14, 95% CI 0.11 to 42.52; very low quality evidence).No trials reported on social confidence, social inclusion, social networks, or personalised quality of life - outcomes designated important to patients. No studies comparing either i. anticholinergics with placebo or no treatment, or ii. studies of anticholinergic withdrawal, were found that reported on the primary outcome 'no clinically important improvement in TD symptoms and adverse events'. AUTHORS' CONCLUSIONS: Based on currently available evidence, no confident statement can be made about the effectiveness of anticholinergics to treat people with antipsychotic-induced tardive dyskinesia. The same applies for the withdrawal of such medications. Whether the withdrawal of anticholinergics may benefit people with antipsychotic induced TD should be evaluated in a parallel-group, placebo-controlled randomised trial, with adequate sample size and at least 6 weeks of follow-up. PMID- 29341073 TI - Did You Know? PMID- 29341074 TI - Back to Basics: The Universal Protocol: 1.4 www.aornjournal.org/content/cme. PMID- 29341075 TI - Slate of Candidates and Voting Procedures. PMID- 29341076 TI - Guideline Quick View: Medication Safety. PMID- 29341077 TI - Assessing Use Errors Related to the Interface Design of Electrosurgical Units. AB - Medical device use errors, such as instrument connection errors made with electrosurgical units (ESUs), can lead to adverse events. Current device acquisition processes at health care facilities do not typically include a proactive evaluation of use-error risk before device purchase. We conducted an evaluation to identify ESU user interface design features that can help prevent or mitigate instrument connection errors during clinical care. Thirty-six current ESU users participated in the evaluation. We used a randomized crossover design in which each participant used two ESU models in a simulated OR scenario. We compared participants' instrument connection accuracy, efficiency, and subjective feedback regarding the user interface design across the two ESU models. Overall, we found that the ESU model that incorporated more user interface design principles resulted in better performance and increased acceptance from users. Based on the results, we designed a decision-support tool to assess the risk of instrument connection errors before ESU purchase. PMID- 29341078 TI - Bylaws Committee 2017-2018 Changes. PMID- 29341079 TI - Guideline for manual chemical high-level disinfection. PMID- 29341080 TI - Managing distractions to maintain focus on patients. PMID- 29341081 TI - Educational Opportunities. PMID- 29341082 TI - AORN Global Surgical Conference & Expo 2018 Exhibitors. PMID- 29341084 TI - AORN Nominating and Leadership Development Committee. PMID- 29341083 TI - Factors Contributing to Perioperative Medication Errors: A Systematic Literature Review: 2.1 www.aornjournal.org/content/cme. PMID- 29341086 TI - Clinical Issues-January 2018: 1.2 www.aornjournal.org/content/cme. PMID- 29341087 TI - July Syndrome. PMID- 29341088 TI - Evidence appraisal of Boonchan T, Wilasrusmee C, McEvoy M, Attia J, Thakkinstian A. Network meta-analysis of antibiotic prophylaxis for prevention of surgical site infection after groin hernia surgery. Br J Surg. 2017;104(2):e106-e117. doi:10.1002/bjs.10441. PMID- 29341089 TI - Candidate Biographical Information and Election Statements. PMID- 29341090 TI - Annual conference promises new learning opportunities. PMID- 29341091 TI - The Importance of Understanding Health Literacy for Perioperative Patient Safety. PMID- 29341093 TI - AORN Board of Directors. PMID- 29341092 TI - New Editor-in-Chief for the AORN Journal. PMID- 29341095 TI - AORN Global Surgical Conference & Expo 2018 Speaker Interviews. PMID- 29341094 TI - Implementing a Perioperative Nursing Student Summer Internship. AB - Using qualitative research and a collaborative academic service partnership, we created an innovative 120-hour perioperative nursing summer internship for eight undergraduate nursing students in 2016. Recognizing that perioperative exposure is limited in the traditional baccalaureate program, this unpaid internship served to clarify student perceptions of perioperative nursing care and encourage graduates to meet perioperative workforce demands. We based the theoretical and practical student learning experiences on the AORN Periop 101 learning modules and included faculty-led discussions, student journaling, and onsite precepted clinical activities. Evaluation data revealed that students achieved an enhanced awareness of perioperative nursing, and a majority of the participants expressed a desire to enter the perioperative field after graduation. We suggest that stakeholders continue to strategize ways to maximize educational preparation to address the evolving health care market supply and demand. PMID- 29341097 TI - A Postprocedure Wrap-up Tool for Improving OR Communication and Performance. AB - In 2015, perioperative nursing staff members at a community hospital designed and implemented a tool to help improve communication and performance. Our postprocedure wrap-up tool and its follow-up process have allowed us to achieve improvements in both efficiency and staff member satisfaction. By implementing a process to document problems as they occur and quickly transmit information to the staff members who are best able to correct these issues, we greatly improved our workflow. Furthermore, by inputting information into spreadsheets using problem codes, thereby replacing anecdotal information with hard data, we targeted areas that needed improvement and used that information for budget planning, training, and allocating resources. Enlisting the input of all members of the surgical team allowed us to identify the root causes of issues that interfered with the staff members' ability to provide efficient, safe, and reliable patient care. PMID- 29341098 TI - Embrace Action: Make Personal and Professional Resolutions. PMID- 29341099 TI - Ventriculoperitoneal shunt. PMID- 29341100 TI - Underdiagnosis of Influenza Virus Infection in Hospitalized Older Adults. AB - OBJECTIVES: To describe factors associated with provider-ordered influenza testing in hospitalized older adults. DESIGN: Information on participant demographics, symptoms, and provider-ordered influenza testing were collected by questionnaire and chart review. We conducted prospective laboratory-based surveillance using reverse-transcriptase polymerase chain reaction (RT-PCR), the criterion standard for diagnosis of influenza, to determine how participant characteristics and provider-ordered testing affected accurate influenza diagnosis. SETTING: One academic and three community hospitals in Davidson County, Tennessee. PARTICIPANTS: Adults aged 18 and older with acute respiratory illness or nonlocalizing fever (N=1,422). MEASUREMENTS: We compared characteristics of participants with and without provider-ordered testing for influenza using the Wilcoxon test and Pearson chi-square test. Multivariable logistic regression models were used to identify factors predictive of provider ordered influenza testing. RESULTS: Twenty-eight percent (399/1,422) of participants had provider-ordered influenza testing. Participants who were tested were younger than those not tested (58 +/- 18 vs 66 +/- 15, p<.001) and more likely to have influenza-like illness (ILI) (71% vs 49%, p<.001). ILI decreased with increasing age (aged 18-49, 63%; aged 50-64, 60%; aged >=65, 48%). ILI and younger age were independent predictors of provider-ordered testing. Of the 136 participants with influenza confirmed using RT-PCR, ILI was the only significant predictor of provider-ordered testing (adjusted odds ratio=3.43, 95% confidence interval=1.22-9.70). CONCLUSION: Adults aged 65 and older hospitalized with fever or respiratory symptoms during influenza season are less likely to undergo a provider-ordered influenza test than younger adults. Some, but not all, of this disparity is due to a lower likelihood of ILI. Further strategies are needed to increase clinician awareness and testing in this vulnerable group. PMID- 29341101 TI - An overview of confounding. Part 2: how to identify it and special situations. AB - Confounding biases study results when the effect of the exposure on the outcome mixes with the effects of other risk and protective factors for the outcome that are present differentially by exposure status. However, not all differences between the exposed and unexposed group cause confounding. Thus, sources of confounding must be identified before they can be addressed. Confounding is absent in an ideal study where all of the population of interest is exposed in one universe and is unexposed in a parallel universe. In an actual study, an observed unexposed population represents the unobserved parallel universe. Thinking about differences between this substitute population and the unexposed parallel universe helps identify sources of confounding. These differences can then be represented in a diagram that shows how risk and protective factors for the outcome are related to the exposure. Sources of confounding identified in the diagram should be addressed analytically and through study design. However, treating all factors that differ by exposure status as confounders without considering the structure of their relation to the exposure can introduce bias. For example, conditions affected by the exposure are not confounders. There are also special types of confounding, such as time-varying confounding and unfixable confounding. It is important to evaluate carefully whether factors of interest contribute to confounding because bias can be introduced both by ignoring potential confounders and by adjusting for factors that are not confounders. The resulting bias can result in misleading conclusions about the effect of the exposure of interest on the outcome. PMID- 29341102 TI - Fungal kerion of the vulva. PMID- 29341103 TI - An overview of confounding. Part 1: the concept and how to address it. AB - Confounding is an important source of bias, but it is often misunderstood. We consider how confounding occurs and how to address confounding using examples. Study results are confounded when the effect of the exposure on the outcome, mixes with the effects of other risk and protective factors for the outcome. This problem arises when these factors are present to different degrees among the exposed and unexposed study participants, but not all differences between the groups result in confounding. Thinking about an ideal study where all of the population of interest is exposed in one universe and is unexposed in a parallel universe helps to distinguish confounders from other differences. In an actual study, an observed unexposed population is chosen to stand in for the unobserved parallel universe. Differences between this substitute population and the parallel universe result in confounding. Confounding by identified factors can be addressed analytically and through study design, but only randomization has the potential to address confounding by unmeasured factors. Nevertheless, a given randomized study may still be confounded. Confounded study results can lead to incorrect conclusions about the effect of the exposure of interest on the outcome. PMID- 29341104 TI - Hair cortisol is elevated in patients with erythropoietic protoporphyria and correlates with body mass index and quality of life. PMID- 29341105 TI - Metabolomic characterization of human hippocampus from drug-resistant epilepsy with mesial temporal seizure. AB - OBJECTIVE: Within a complex systems biology perspective, we wished to assess whether hippocampi with established neuropathological features have distinct metabolome. Apparently normal hippocampi with no signs of sclerosis (noHS), were compared to hippocampal sclerosis (HS) type 1 (HS1) and/or type 2 (HS2). Hippocampus metabolome from patients with epilepsy-associated neuroepithelial tumors (EANTs), namely, gangliogliomas (GGs) and dysembryoplastic neuroepithelial tumors (DNTs), was also compared to noHS epileptiform tissue. METHODS: All patients underwent standardized temporal lobectomy. We applied 1 H high resolution magic angle spinning nuclear magnetic resonance (HRMAS NMR) spectroscopy to 48 resected human hippocampi. NMR spectra allowed quantification of 21 metabolites. Data were analyzed using multivariate analysis based on mutual information. RESULTS: Clear distinct metabolomic profiles were observed between all studied groups. Sixteen and 18 expected metabolite levels out of 21 were significantly different for HS1 and HS2, respectively, when compared to noHS. Distinct concentration variations for glutamine, glutamate, and N-acetylaspartate (NAA) were observed between HS1 and HS2. Hippocampi from GG and DNT patients showed 7 and 11 significant differences in metabolite concentrations when compared to the same group, respectively. GG and DNT had a clear distinct metabolomic profile, notably regarding choline compounds, glutamine, glutamate, aspartate, and taurine. Lactate and acetate underwent similar variations in both groups. SIGNIFICANCE: HRMAS NMR metabolomic analysis was able to disentangle metabolic profiles between HS, noHS, and epileptic hippocampi associated with EANT. HRMAS NMR metabolomic analysis may contribute to a better identification of abnormal biochemical processes and neuropathogenic combinations underlying mesial temporal lobe epilepsy. PMID- 29341106 TI - The effect of surgery on subsequent pregnancy outcomes among patients with cesarean scar diverticulum. AB - OBJECTIVE: To determine whether surgical treatment of cesarean scar diverticulum (CSD) reduced adverse outcomes during the subsequent pregnancy. METHODS: A retrospective observational study was conducted using the medical records of pregnant women with CSD who attended a single hospital in Hangzhou, China, between January 1, 2014, and December 31, 2016. Baseline characteristics and pregnancy outcomes were compared between the surgery group and the no surgery group. RESULTS: There were 106 patients included in the study, 83 in the surgery group and 23 in the no surgery group. The CSD size was greater in all dimensions for the surgery group versus the no surgery group: length (P<0.001), width (P=0.001), and depth (P=0.030). The remaining myometrium was thinner among women in the surgery group than those in the no surgery group (P=0.011). In all, 76 (91.6%) women in the surgery group were symptomatic. The incidence of live delivery pregnancy was higher (P=0.033) and the incidence of cesarean scar pregnancy was lower (P=0.019) in the surgery group versus the no surgery group. Surgery increased the thickness of the lower uterine segment (P<0.001); however, it did not reduce the risks of placenta previa or placenta accreta (P=0.683) and uterine dehiscence or uterine rupture (P=0.458). CONCLUSION: Surgical intervention reduced the incidence of cesarean scar pregnancy and increased the number of live deliveries. PMID- 29341107 TI - Anthropogenic nitrogen deposition ameliorates the decline in tree growth caused by a drier climate. AB - Most forest ecosystems are simultaneously affected by concurrent global change drivers. However, when assessing these effects, studies have mainly focused on the responses to single factors and have rarely evaluated the joined effects of the multiple aspects of environmental change. Here, we analyzed the combined effects of anthropogenic nitrogen (N) deposition and climatic conditions on the radial growth of Acer saccharum, a dominant tree species in eastern North American forests. We capitalized on a long-term N deposition study, replicated along a latitudinal gradient, that has been taking place for more than 20 yr. We analyzed tree radial growth as a function of anthropogenic N deposition (ambient and experimental addition) and of summer temperature and soil water conditions. Our results reveal that experimental N deposition enhances radial growth of this species, an effect that was accentuated as temperature increased and soil water became more limiting. The spatial and temporal extent of our data also allowed us to assert that the positive effects of growing under the experimental N deposition are likely due to changes in the physiological performance of this species, and not due to the positive correlation between soil N and soil water holding capacity, as has been previously speculated in other studies. Our simulations of tree growth under forecasted climate scenarios specific for this region also revealed that although anthropogenic N deposition may enhance tree growth under a large array of environmental conditions, it will not mitigate the expected effects of growing under the considerably drier conditions characteristic of our most extreme climatic scenario. PMID- 29341108 TI - Characteristics of tendon derived stem cells according to different factors to induce the tendinopathy. AB - Tendon derived stem cells (TDSCs) have been used as a therapeutic agent and as a healing marker. However, there has been no study about the characteristics of TDSCs extracted from tendinopathic tendon tissues. The aim of this study was to find the different characteristics of TDSCs according to the factors to induce the tendinopathy. Five- and fifteen-week old Sprague Dawley rats were used for this study and chemically-induced and injury-induced tendinopathy models were made depending on the age of the animal for different types of tendinopathy. TDSCs from chemically-induced tendinopathy showed markedly low proliferation compared to those from age-matched normal control and injury-induced tendinopathy. In addition, TDSCs from chemically-induced tendinopathy progressed to osteogenesis under an osteogenic differentiation environment more than those from other groups. In contrast, TDSCs from injury-induced tendinopathy showed markedly high proliferation and high expression of type III collagen and alpha SMA compared to other groups. Adipogenic potentials in TDSCs from injury-induced tendinopathy were also higher. These different characteristics might be helpful in the development new therapeutic agents for tendon regeneration according to different factors to induce the tendinopathy. PMID- 29341109 TI - The prescribable drugs with efficacy in experimental epilepsies (PDE3) database for drug repurposing research in epilepsy. AB - OBJECTIVE: Current antiepileptic drugs (AEDs) have several shortcomings. For example, they fail to control seizures in 30% of patients. Hence, there is a need to identify new AEDs. Drug repurposing is the discovery of new indications for approved drugs. This drug "recycling" offers the potential of significant savings in the time and cost of drug development. Many drugs licensed for other indications exhibit antiepileptic efficacy in animal models. Our aim was to create a database of "prescribable" drugs, approved for other conditions, with published evidence of efficacy in animal models of epilepsy, and to collate data that would assist in choosing the most promising candidates for drug repurposing. METHODS: The database was created by the following: (1) computational literature mining using novel software that identifies Medline abstracts containing the name of a prescribable drug, a rodent model of epilepsy, and a phrase indicating seizure reduction; then (2) crowdsourced manual curation of the identified abstracts. RESULTS: The final database includes 173 drugs and 500 abstracts. It is made freely available at www.liverpool.ac.uk/D3RE/PDE3. The database is reliable: 94% of the included drugs have corroborative evidence of efficacy in animal models (for example, evidence from multiple independent studies). The database includes many drugs that are appealing candidates for repurposing, as they are widely accepted by prescribers and patients-the database includes half of the 20 most commonly prescribed drugs in England-and they target many proteins involved in epilepsy but not targeted by current AEDs. It is important to note that the drugs are of potential relevance to human epilepsy-the database is highly enriched with drugs that target proteins of known causal human epilepsy genes (Fisher's exact test P-value < 3 * 10-5 ). We present data to help prioritize the most promising candidates for repurposing from the database. SIGNIFICANCE: The PDE3 database is an important new resource for drug repurposing research in epilepsy. PMID- 29341110 TI - Eurogin roadmap 2017: Triage strategies for the management of HPV-positive women in cervical screening programs. AB - Cervical cancer screening will rely, increasingly, on HPV testing as a primary screen. The requirement for triage tests which can delineate clinically significant infection is thus prescient. In this EUROGIN 2017 roadmap, justification behind the most evidenced triages is outlined, as are challenges for implementation. Cytology is the triage with the most follow-up data; the existence of an HR-HPV-positive, cytology-negative group presents a challenge and retesting intervals for this group (and choice of retest) require careful consideration. Furthermore, cytology relies on subjective skills and while adjunctive dual-staining with p16/Ki67 can mitigate inter-operator/-site disparities, clinician-taken samples are required. Comparatively, genotyping and methylation markers are objective and are applicable to self-taken samples, offering logistical advantages including in low and middle income settings. However, genotyping may have diminishing returns in immunised populations and type(s) included must balance absolute risk for disease to avoid low specificity. While viral and cellular methylation markers show promise, more prospective data are needed in addition to refinements in automation. Looking forward, systems that detect multiple targets concurrently such as next generation sequencing platforms will inform the development of triage tools. Additionally, multistep triage strategies may be beneficial provided they do not create complex, unmanageable pathways. Inevitably, the balance of risk to cost(s) will be key in decision making, although defining an acceptable risk will likely differ between settings. Finally, given the significant changes to cervical screening and the variety of triage strategies, appropriate education of both health care providers and the public is essential. PMID- 29341111 TI - Variation and drivers of airflow patterns associated with olfactory concealment and habitat selection. AB - Many terrestrial predators rely on olfaction to detect prey; therefore, prey should select habitat to reduce detectability of their odor cues. One way prey can potentially conceal their odor is by selecting locations with high turbulence and/or updrafts, conditions that disperse odor plumes and make odor sources difficult to locate. However, it is unclear how these conditions vary among vegetation cover types and which vegetative features drive them. We assessed variation and drivers of variables hypothesized to influence olfactory concealment (turbulence intensity and airflow slope) and experimentally evaluated whether these variables indeed influence predator detection of simulated prey. Specifically, we compared vegetation patch-scale values of turbulence intensity and airflow slope among grassland, shrubland, and forest and assessed relationships among these airflow variables and local-scale vegetative features within each vegetation type. Additionally, we experimentally investigated the importance of turbulence intensity, airflow slope, and visual concealment for predicting predator detection of scented quail eggs. In all vegetation types, we documented high variability in airflow conditions. At the patch scale, turbulence intensity was greater in shrubland and grassland than in forest, and updrafts were most common in shrubland whereas downdrafts were most common in grassland. Grassland was the only vegetation type with strong relationships among turbulence intensity and local vegetation features; both visual concealment and vegetation height were positively related to turbulence intensity. Additionally, persistence of scented quail eggs in grassland was best predicted by turbulence intensity; egg persistence increased with turbulence intensity. Our characterization of differences in olfactory variables among vegetation types provides an important step towards building a clearer understanding of olfactory landscapes. Further, our observation of both patch- and local-scale variation in olfactory variables suggests that prey can potentially select for olfactory concealment at multiple scales. We hypothesize that olfactory concealment provided by high levels of turbulence intensity is an important component of cover in grassland, and that in grassland/shrubland landscapes, prey selection of shrubland patches reduces odor detectability. Our finding of a positive relationship between turbulence intensity and visual concealment also suggests that olfactory concealment may be a previously underappreciated confounding factor in studies of habitat selection. PMID- 29341112 TI - Conditionally reprogrammed cells (CRC) methodology does not allow the in vitro expansion of patient-derived primary and metastatic lung cancer cells. AB - Availability of tumor and non-tumor patient-derived models would promote the development of more effective therapeutics for non-small cell lung cancer (NSCLC). Recently, conditionally reprogrammed cells (CRC) methodology demonstrated exceptional potential for the expansion of epithelial cells from patient tissues. However, the possibility to expand patient-derived lung cancer cells using CRC protocols is controversial. Here, we used CRC approach to expand cells from non-tumoral and tumor biopsies of patients with primary or metastatic NSCLC as well as pulmonary metastases of colorectal or breast cancers. CRC cultures were obtained from both tumor and non-malignant tissues with extraordinary high efficiency. Tumor cells were tracked in vitro through tumorigenicity assay, monitoring of tumor-specific genetic alterations and marker expression. Cultures were composed of EpCAM+ lung epithelial cells lacking tumorigenic potential. NSCLC biopsies-derived cultures rapidly lost patient specific genetic mutations or tumor antigens. Similarly, pulmonary metastases of colon or breast cancer generated CRC cultures of lung epithelial cells. All CRC cultures examined displayed epithelial lung stem cell phenotype and function. In contrast, brain metastatic lung cancer biopsies failed to generate CRC cultures. In conclusion, patient-derived primary and metastatic lung cancer cells were negatively selected under CRC conditions, limiting the expansion to non-malignant lung epithelial stem cells from either tumor or non-tumor tissue sources. Thus, CRC approach cannot be applied for direct therapeutic testing of patient lung tumor cells, as the tumor-derived CRC cultures are composed of (non-tumoral) airway basal cells. PMID- 29341113 TI - Prospective emotion enables episodic prospection to shift time preference. AB - The episodic effect suggests that episodic prospection (imagining future events) can effectively reduce time discounting, the propensity to discount the value of delayed rewards relative to immediate ones. However, less clear is how episodic prospection modulates time preference. As engagement in episodic prospection usually evokes prospective emotions, it was proposed that episodic prospection might work by inducing prospective emotions. Although one previous study has attempted to provide evidence to the emotional account of the episodic effect, shortcomings in its experimental design make its conclusion questionable. In this study, we replicated previous experimental design with improvements to further test the effects of prospective emotion on time preference. By manipulating the emotional valency associated with episodic prospection in a delay discounting task, we found that positive episodic prospection attenuated time discounting; negative episodic prospection exacerbated time discounting; and episodic prospection did not shift time preference when prospective emotion is removed. These results were essentially identical to the result of the previous study. Together, these studies suggested that the effects of episodic prospection depended on prospective emotion. Thus, one cannot ignore prospective emotion if counting on episodic prospection to combat humans' impulsive behaviours. PMID- 29341114 TI - Recombinant human hepatocyte growth factor provides protective effects in cerulein-induced acute pancreatitis in mice. AB - Acute pancreatitis is a multifactorial disease associated with profound changes of the pancreas induced by release of digestive enzymes that lead to increase in proinflammatory cytokine production, excessive tissue necrosis, edema, and bleeding. Elevated levels of hepatocyte growth factor (HGF) and its receptor c Met have been observed in different chronic and acute pancreatic diseases including experimental models of acute pancreatitis. In the present study, we investigated the protective effects induced by the recombinant human HGF in a mouse model of cerulein-induced acute pancreatitis. Pancreatitis was induced by 8 hourly administrations of supramaximal cerulein injections (50 ug/kg, ip). HGF treatment (20 ug/kg, iv), significantly attenuated lipase content and amylase activity in serum as well as the degree inflammation and edema overall leading to less severe histologic changes such as necrosis, induced by cerulein. Protective effects of HGF were associated with activation of pro-survival pathways such as Akt, Erk1/2, and Nrf2 and increase in executor survival-related proteins and decrease in pro-apoptotic proteins. In addition, ROS content and lipid peroxidation were diminished, and glutathione synthesis increased in pancreas. Systemic protection was observed by lung histology. In conclusion, our data indicate that HGF exerts an Nrf2 and glutathione-mediated protective effect on acute pancreatitis reflected by a reduction in inflammation, edema, and oxidative stress. PMID- 29341115 TI - Non-volant mammals from the Upper Parana River Basin: a data set from a critical region for conservation in Brazil. AB - The data set represents the first attempt at a large-scale inventory of non volant mammals, with potential applications to performing macroecological studies, developing conservation strategies, and undertaking population and community ecology research, but also to evaluate the ecological consequences of fragmentation and defaunation. Our objectives for compiling these data were to summarize information about inventories of non-volant mammals in the critically important area of the Upper Parana River Basin by focusing on species richness and index of frequency of occurrence and to identify gaps in knowledge regarding non-volant mammal communities in order to guide future sampling efforts. The data set comprises studies on communities of non-volant mammals from 52 locations covering more than 1,000 km2 and comprises portion of four Brazilian states in the Upper Parana River Basin. We listed 81 species of non-volant mammals distributed among 58 genera, 22 families, and 9 orders. Rodentia (28 species) was the richest order, followed by Carnivora (17 spp.) and Didelphimorphia (15 spp.). The richest family was Cricetidae (20 spp.), followed by Didelphidae (15 spp.), and Dasypodidae and Felidae (six spp.). Considering national conservation status, one species are considered endangered and 16 vulnerable. Considering global conservation status, 7 species are considered vulnerable, 10 are considered near threatened, and 6 are data deficient. According to the index of frequency of occurrence, Myrmecophaga tridactyla was the most frequent species, occurring at 88.64% of all sites, while 25 species were considered very restricted, occurring in just 2.56% of all sites. In general, the non-volant mammal fauna was composed of mainly very restricted (VR, 25 species) and localized species (L, 25 species), which account for 61.7% of the known species, while 38.3% are restricted (R, 8 species), common (C, 16 species), and widespread (W, 7 species). Seven marsupials and five small rodents had their distributions extended in the central-south of Brazil. All of these species are considered data deficient or threatened, which highlights the importance of these records. No copyright restrictions are associated with the use of this data set. Please cite this data paper when the data are used in publications. We also request that researchers and teachers inform us of how they are using the data. PMID- 29341116 TI - Rare missense mutations in RECQL and POLG associate with inherited predisposition to breast cancer. AB - Several known breast cancer susceptibility genes with moderate-to-high risk alleles encode proteins involved in DNA damage response (DDR). As these explain less than half of the hereditary breast cancer cases, additional predisposing alleles are likely to be discovered. Many of the previous studies utilizing massive parallel sequencing have focused on the protein-truncating variants, and the role of rare missense mutations has remained poorly addressed. To identify novel susceptibility factors, we have systematically analyzed the data from our parallel sequencing of 796 DDR genes in 189 Northern Finnish hereditary breast cancer patients for rare missense variants, predicted as deleterious. Thirty-five variants were studied here for the disease association using Finnish breast cancer case (n = 492-2,035) and control (n = 277-1,539) cohorts. As a result, two missense variants in genes involved in DNA replication, RECQL p.I156M and POLG p.L392V, the former involving genomic and the latter mitochondrial DNA replication, showed significant association with risk of breast cancer. Rare RECQL p.I156M allele was observed in breast cancer cases only (6/1,946, 0.3%, p = 0.043), whereas POLG p.L392V was two times more frequent in breast cancer cases (53/2,238, 2.4%) compared to controls (18/1,539, 1.2%, OR = 2.1, 95% CI 1.2-3.5, p = 0.010). Based on the current genetic data, both RECQL p.I156M and POLG p.L392V represent novel breast cancer predisposing alleles. PMID- 29341117 TI - HOXD-AS1/miR-130a sponge regulates glioma development by targeting E2F8. AB - Glioma development is an extremely complex process with changes occurring in numerous genes. HOXD antisense growth-associated long noncoding RNA (HOXD-AS1), an important long noncoding RNA (lncRNA), is known to regulate metastasis-related gene expression in bladder cancer, ovarian cancer and neuroblastoma. Here, we elucidated the function and possible molecular mechanisms of lncRNA HOXD-AS1 in human glioma cells. Our results proved that HOXD-AS1 expression was upregulated in glioma tissues and in glioma cell lines. HOXD-AS1 overexpression promoted cell migration and invasion in vitro, whereas knockdown of HOXD-AS1 expression repressed these cellular processes. Mechanistic studies further revealed that HOXD-AS1 could compete with the transcription factor E2F8 to bind with miR-130a, thus affecting E2F8 expression. Additionally, reciprocal repression was observed between HOXD-AS1 and miR-130a, and miR-130a mediated the tumor-suppressive effects of HOXD-AS1 knockdown. Taken together, these results provide a comprehensive analysis of the role of HOXD-AS1 in glioma cells and offer important clues to understand the key roles of competing endogenous RNA (ceRNA) mechanisms in human glioma. PMID- 29341119 TI - Time to Settle the Fracking Controversy. PMID- 29341120 TI - Trajectories of Infants' Biobehavioral Development: Timing and Rate of A-Not-B Performance Gains and EEG Maturation. AB - This study examined how timing (i.e., relative maturity) and rate (i.e., how quickly infants attain proficiency) of A-not-B performance were related to changes in brain activity from age 6 to 12 months. A-not-B performance and resting EEG (electroencephalography) were measured monthly from age 6 to 12 months in 28 infants and were modeled using logistic and linear growth curve models. Infants with faster performance rates reached performance milestones earlier. Infants with faster rates of increase in A-not-B performance had lower occipital power at 6 months and greater linear increases in occipital power. The results underscore the importance of considering nonlinear change processes for studying infants' cognitive development as well as how these changes are related to trajectories of EEG power. PMID- 29341118 TI - Inhibition of the Fibrinogen-Like Protein 2:FcgammaRIIB/RIII immunosuppressive pathway enhances antiviral T-cell and B-cell responses leading to clearance of lymphocytic choriomeningitis virus clone 13. AB - Persistent viruses evade immune detection by interfering with virus-specific innate and adaptive antiviral immune responses. Fibrinogen-like protein-2 (FGL2) is a potent effector molecule of CD4+ CD25+ FoxP3+ regulatory T cells and exerts its immunosuppressive activity following ligation to its cognate receptor, FcgammaRIIB/RIII. The role of FGL2 in the pathogenesis of chronic viral infection caused by lymphocytic choriomeningitis virus clone-13 (LCMV cl-13) was assessed in this study. Chronically infected fgl2+/+ mice had increased plasma levels of FGL2, with reduced expression of the maturation markers, CD80, CD86 and MHC-II on macrophages and dendritic cells and impaired production of neutralizing antibody. In contrast, fgl2-/- mice or fgl2+/+ mice that had been pre-treated with antibodies to FGL2 and FcgammaRIIB/RIII and then infected with LCMV cl-13 developed a robust CD4+ and CD8+ antiviral T-cell response, produced high titred neutralizing antibody to LCMV and cleared LCMV. Treatment of mice with established chronic infection with antibodies to FGL2 and FcgammaRIIB/RIII was shown to rescue the number and functionality of virus-specific CD4+ and CD8+ T cells with reduced total and virus-specific T-cell expression of programmed cell death protein 1 leading to viral clearance. These results demonstrate an important role for FGL2 in viral immune evasion and provide a rationale to target FGL2 to treat patients with chronic viral infection. PMID- 29341121 TI - Violence, Guns, and Suicide in New Orleans: Results from a Qualitative Study of Recent Suicide Decedents. AB - Many Americans own guns to protect themselves against other people, but there is evidence that both victimization and gun access increase suicide risk. We conducted qualitative interviews with informants of 17 suicide cases in New Orleans of the 60 who died between January 2015 and April 2016 to understand the relationship between past trauma, gun access and storage, and suicide. Nine cases had experienced a past trauma, including three who had recently had a family member killed by homicide. Eight died via firearm; of those, seven owned the guns they used to take their lives and stored them locked (but loaded) at home or in their cars. Preventing community violence and addressing its sequelae may be important for reducing suicides. A multi-pronged strategy consisting of policies, education, and marketing will likely be needed to address the risk of suicide conferred by gun access. PMID- 29341123 TI - Do longer root hairs improve phosphorus uptake? Testing the hypothesis with transgenic Brachypodium distachyon lines overexpressing endogenous RSL genes. AB - Mutants without root hairs show reduced inorganic orthophosphate (Pi) uptake and compromised growth on soils when Pi availability is restricted. What is less clear is whether root hairs that are longer than wild-type provide an additional benefit to phosphorus (P) nutrition. This was tested using transgenic Brachypodium lines with longer root hairs. The lines were transformed with the endogenous BdRSL2 and BdRSL3 genes using either a constitutive promoter or a root hair-specific promoter. Plants were grown for 32 d in soil amended with various Pi concentrations. Plant biomass and P uptake were measured and genotypes were compared on the basis of critical Pi values and P uptake per unit root length. Ectopic expression of RSL2 and RSL3 increased root hair length three-fold but decreased plant biomass. Constitutive expression of BdRSL2, but not expression of BdRSL3, consistently improved P nutrition as measured by lowering the critical Pi values and increasing Pi uptake per unit root length. Increasing root hair length through breeding or biotechnology can improve P uptake efficiency if the pleotropic effects on plant biomass are avoided. Long root hairs, alone, appear to be insufficient to improve Pi uptake and need to be combined with other traits to benefit P nutrition. PMID- 29341122 TI - Impacts of Methane on Carbon Dioxide Storage in Brine Formations. AB - In the context of geological carbon sequestration (GCS), carbon dioxide (CO2 ) is often injected into deep formations saturated with a brine that may contain dissolved light hydrocarbons, such as methane (CH4 ). In this multicomponent multiphase displacement process, CO2 competes with CH4 in terms of dissolution, and CH4 tends to exsolve from the aqueous into a gaseous phase. Because CH4 has a lower viscosity than injected CO2 , CH4 is swept up into a 'bank' of CH4 -rich gas ahead of the CO2 displacement front. On the one hand, this may provide a useful tracer signal of an approaching CO2 front. On the other hand, the emergence of gaseous CH4 is undesirable because it poses a leakage risk of a far more potent greenhouse gas than CO2 if the cap rock is compromised. Open fractures or faults and wells could result in CH4 contamination of overlying groundwater aquifers as well as surface emissions. We investigate this process through detailed numerical simulations for a large-scale GCS pilot project (near Cranfield, Mississippi) for which a rich set of field data is available. An accurate cubic-plus-association equation-of-state is used to describe the non linear phase behavior of multiphase brine-CH4 -CO2 mixtures, and breakthrough curves in two observation wells are used to constrain transport processes. Both field data and simulations indeed show the development of an extensive plume of CH4 -rich (up to 90 mol%) gas as a consequence of CO2 injection, with important implications for the risk assessment of future GCS projects. PMID- 29341124 TI - Metric Assessment of the Pubic Bone Using Known and Novel Data Points for Sex Estimation. AB - Biological sex estimation of skeletal remains is essential in forensic and archaeological analyses. Anthropologists most often use the pelvis, which is the most sexually dimorphic element both morphologically and metrically. While nonmetric pubic bone features have been studied extensively, few metric studies have examined this individual bone for dimorphism. For this study, three observers examined three previously identified and ten novel measurements of the pubic body on a modern sample of isolated pubic bones from the Maricopa County Forensic Science Center (FSC), in Phoenix, Arizona (n = 400). A relationship between pubic body measurements and biological sex was demonstrated, with significant correlations. Discriminant function analyses found that five measurements, four of which were novel, discriminated between males (89%) and females (86%). Observer experience level did not significantly impact the results. These five measurements were reliable and show promise for inclusion in metric methods for assessment of sex. PMID- 29341125 TI - Gut microbiota and probiotics: novel immune system modulators in myasthenia gravis? AB - Gut microorganisms (microbiota) live in symbiosis with the host and influence human nutrition, metabolism, physiology, and immune development and function. The microbiota prevents pathogen infection to the host, and in turn the host provides a niche for survival. The alteration of gut bacteria composition (dysbiosis) could contribute to the development of immune-mediated diseases by influencing the immune system activation and driving the pro- and anti-inflammatory responses in order to promote or counteract immune reactions. Probiotics are nonpathogenic microorganisms able to interact with the gut microbiota and provide health benefits; their use has recently been exploited to dampen immunological response in several experimental models of autoimmune diseases. Here, we focus on the relationships among commensal bacteria, probiotics, and the gut, describing the main interactions occurring with the immune system and recent data supporting the clinical efficacy of probiotic administration in rheumatoid arthritis, multiple sclerosis, and myasthenia gravis (MG) animal models. The encouraging results suggest that selected strains of probiotics should be evaluated in clinical trials as adjuvant therapy to restore the disrupted tolerance in myasthenia gravis. PMID- 29341126 TI - Size Assessment of the Gray Reef Shark Carcharhinus amblyrhynchos Inferred from Teeth Marks on Human Wounds. AB - An accurate assessment of the biting shark size is paramount for better understanding the agonistic behavior of a species toward humans. The gray reef shark is involved in many accidental bites. Based on the capture of 35 gray sharks, we calculated the algorithm that allows the assessment of the shark size, through the interdental distance (IDD) inferred from teeth marks on human wounds. Our results show a negative allometric relationship and that IDD calculated from imprints perpetrated by the upper jaw are globally similar with those from the lower jaw, in spite of heterodonty. We applied our findings to two cases of accidental bites by this species. Both of the victims had declared that the shark length was "at least 2 m". Based on our algorithm, the assessment of the shark TL was approx. 180 and 160 cm, respectively, which correspond to an overestimation of >=20% by the victims. PMID- 29341127 TI - Discrimination of Geographical Origin of Asian Garlic Using Isotopic and Chemical Datasets under Stepwise Principal Component Analysis. AB - Isotopic compositions of delta2 H, delta18 O, delta13 C, and delta15 N and concentrations of 22 trace elements from garlic samples were analyzed and processed with stepwise principal component analysis (PCA) to discriminate garlic's country of origin among Asian regions including South Korea, Vietnam, Taiwan, and China. Results indicate that there is no single trace-element concentration or isotopic composition that can accomplish the study's purpose and the stepwise PCA approach proposed does allow for discrimination between countries on a regional basis. Sequentially, Step-1 PCA distinguishes garlic's country of origin among Taiwanese, South Korean, and Vietnamese samples; Step-2 PCA discriminates Chinese garlic from South Korean garlic; and Step-3 and Step-4 PCA, Chinese garlic from Vietnamese garlic. In model tests, countries of origin of all audit samples were correctly discriminated by stepwise PCA. Consequently, this study demonstrates that stepwise PCA as applied is a simple and effective approach to discriminating country of origin among Asian garlics. PMID- 29341128 TI - Study on the Method Used to Display Self-fading Lines and Erasable Lines. AB - Two new kinds of writing tools are popular in China's market. One is a self fading pen, and another is an erasable pen. The ink of the two kinds of writing tools has a remarkable characteristic that it can gradually fade or disappear under heat or be rubbed off. How to reveal the disappeared written lines is a very important question for document examiners. In this article, three series of ink line samples were made with five types of self-fading pens, 18 types of erasable pens, and three types of papers. Temperature, humidity, and lighting are known as influential factors of the process, and the effect of fading was examined. Luminescence, ultraviolet (UV), sidelight, electrostatic indentation development,low temperature, and solution revealing methods are found to be effective methods used to reveal the disappeared written lines. The best operating conditions for each method were obtained from the conducted experiments. PMID- 29341129 TI - Diagnosing Crime and Diagnosing Disease-II: Visual Pattern Perception and Diagnostic Accuracy. AB - Previously, we reviewed how general cognitive processes might be susceptible to bias across both forensic and clinical fields, and how interdisciplinary comparisons could reduce error. We discuss several examples of clinical tasks which are heavily dependent on visual processing, comparing them to eyewitness identification (EI). We review the "constructive" nature of visual processing, and how contextual factors influence both medical experts and witnesses in decision making and recall. Overall, studies suggest common cognitive factors uniting these visual tasks, in both their strengths and shortcomings. Recently forensic sciences have advocated reducing errors by identifying and controlling nonrelevant information. Such efforts could effectively assist medical diagnosis. We suggest potential remedies for cognitive bias in these tasks. These can generalize across the clinical and forensic domains, including controlling the sequencing of contextual factors. One solution is an agnostic primary reading before incorporation of a complete history and interpretation. PMID- 29341131 TI - A retrospective study of feline trauma patients admitted to a referral centre. AB - OBJECTIVE: To identify prognostic information and provide recommendations for management of feline trauma patients. METHODS: Retrospective analysis of case records for 185 cats presented as emergency trauma cases to a referral hospital between February 2009 and December 2013. Each case was assigned a severity score from 1 (very minor injuries) to 6 (moribund, dying). The data were analysed using Mann-Whitney U and Spearman's rank correlation tests. Logistic regression was used to calculate odds ratios. RESULTS: Out of 185 cats, 22 (11%) did not survive to discharge. Those presenting with a higher severity score had a higher rate of mortality and a longer period of hospitalisation. Road traffic accidents were the most common cause of trauma (104/185) and had the highest mortality and complication rates. Cats with circulatory shock and multiple injuries were identified as having a higher rate of mortality. CLINICAL SIGNIFICANCE: Cats involved in road traffic accidents and that present with signs of shock or multiple injuries following a traumatic event have an increased mortality rate. Cats with a higher severity score had an increased duration of hospitalisation. PMID- 29341133 TI - Development and initial validity of the in-hand manipulation assessment. AB - BACKGROUND/AIM: A review of the literature related to in-hand manipulation (IHM) revealed that there is no assessment which specifically measures this construct in the adult population. This study reports the face and content validity of an IHM assessment for adults with impaired hand function based on expert opinion. METHODS: The definition of IHM skills, assessment tasks and scoring methods identified from literature was discussed in a focus group (n = 4) to establish face validity. An expert panel (n = 16) reviewed the content validity of the proposed assessment; evaluating the representativeness and relevance of encompassing the IHM skills in the proposed assessment tasks, the clarity and importance to daily life of the task and the clarity and applicability to clinical environment of the scoring method. The content validity was calculated using the content validity index for both the individual task and all tasks together (I-CVI and S-CVI). Feedback was incorporated to create the assessment. RESULTS: The focus group members agreed to include 10 assessment tasks that covered all IHM skills. In the expert panel review, all tasks received an I-CVI above 0.78 and S-CVI above 0.80 in representativeness and relevance ratings, representing good content validity. With the comments from the expert panel, tasks were modified to improve the clarity and importance to daily life. A four point Likert scale was identified for assessing both the completion of the assessment tasks and the quality of IHM skills within the task performance. CONCLUSION: Face and content validity were established in this new IHM assessment. Further studies to examine psychometric properties and use within clinical practice are recommended. PMID- 29341132 TI - Acanthoic acid suppresses lipin1/2 via TLR4 and IRAK4 signalling pathways in EtOH and lipopolysaccharide-induced hepatic lipogenesis. AB - OBJECTIVES: In alcoholic liver disease, alcohol and lipopolysaccharide (LPS) are major stimulation factors of hepatic lipogenesis. Our objective was to determine the protective mechanism of acanthoic acid (AA) in EtOH- and LPS-induced hepatic lipogenesis. METHODS: HSC-T6 cells were treated with ethanol (200 mm) plus LPS (1 MUg/ml) for 1 h, followed by AA (10 or 20 MUm) for another 6 h. C57BL/6 mice were pretreated with of AA (20 and 40 mg/kg) or equal volume of saline and then exposed to three doses of ethanol (5 g/kg body weight) within 24 h. The mice were sacrificed at 6 h after the last ethanol dosing. KEY FINDINGS: Acanthoic acid significantly decreased the expressions of alpha-SMA, collagen-I, SREBP-1, and lipin1/2 induced, also decreased fat droplets caused by EtOH/LPS. AA treatment decreased the protein expressions of TLR4, CD14, IRAK4, TRAF3, p-TAK1 and NF kappaB increased by EtOH/LPS on HSC cells. Results in vivo were consistent with results in vitro. CONCLUSIONS: Our data demonstrated that AA might modulate hepatic fibrosis and lipid deposition in HSC-T6 cell stimulated with ethanol combined with LPS by decreasing lipin1/2 via TLR4 and IRAK4 signalling pathways, and AA might be considered as a potential therapeutic candidate for alcoholic liver disease. PMID- 29341134 TI - Fatal Hemorrhage from an Arteriovenous Fistula. AB - In this study, we present two cases of sudden deaths of people with end-stage kidney with arteriovenous fistulas for long-term hemodialysis treatment. This procedure is associated with a number of known complications. While stenosis, thrombosis, and infection are well known, lethal hemorrhage from arteriovenous fistula is much less commonly encountered. Inspection of the bodies at the scene of the death by a medical examiner suggested that the deaths were due to exsanguination. Autopsies revealed visible defects on the front wall of the arteriovenous fistulas. Microscopic examination showed wall necrosis with infiltration of various inflammatory cells. Deaths were due to exsanguination from the ulcerated arteriovenous fistulas in patients with chronic renal failure. Further investigation revealed that complications in the area around the arteriovenous fistulas were known and were being treated until a sudden rupture of the vessels and hemorrhage from the arteriovenous fistulas resulted in the deaths. PMID- 29341130 TI - Mitochondrial function and autophagy: integrating proteotoxic, redox, and metabolic stress in Parkinson's disease. AB - Parkinson's disease (PD) is a movement disorder with widespread neurodegeneration in the brain. Significant oxidative, reductive, metabolic, and proteotoxic alterations have been observed in PD postmortem brains. The alterations of mitochondrial function resulting in decreased bioenergetic health is important and needs to be further examined to help develop biomarkers for PD severity and prognosis. It is now becoming clear that multiple hits on metabolic and signaling pathways are likely to exacerbate PD pathogenesis. Indeed, data obtained from genetic and genome association studies have implicated interactive contributions of genes controlling protein quality control and metabolism. For example, loss of key proteins that are responsible for clearance of dysfunctional mitochondria through a process called mitophagy has been found to cause PD, and a significant proportion of genes associated with PD encode proteins involved in the autophagy lysosomal pathway. In this review, we highlight the evidence for the targeting of mitochondria by proteotoxic, redox and metabolic stress, and the role autophagic surveillance in maintenance of mitochondrial quality. Furthermore, we summarize the role of alpha-synuclein, leucine-rich repeat kinase 2, and tau in modulating mitochondrial function and autophagy. Among the stressors that can overwhelm the mitochondrial quality control mechanisms, we will discuss 4-hydroxynonenal and nitric oxide. The impact of autophagy is context depend and as such can have both beneficial and detrimental effects. Furthermore, we highlight the potential of targeting mitochondria and autophagic function as an integrated therapeutic strategy and the emerging contribution of the microbiome to PD susceptibility. PMID- 29341136 TI - Phylogeny and distribution of protein kinase C variants in the zebrafish. AB - Conventional protein kinases-consisting of alpha, beta, and gamma family members play key roles in numerous signal transduction events. Phylogenetic analysis demonstrated the existence of five prkcs (the genes representing PKCs) in zebrafish, two paralogous forms of prkca and prkcb and one prkcg variant. mRNA expression analysis showed distinct, mainly nervous system specific expression, for all five prkc genes. For prkca and prkcb paralogs prominent expression can be seen in the telencephalon, in diencephalic regions such as the habenula or the optic tectum, in hypothalamic areas and in distinct cerebellar structures. Each transcript is additionally expressed in distinct areas: prkcaa is highly abundant in cranial sensory ganglia and in dorsal neurons of the hindbrain and the spinal cord, prkcab is strongly expressed in additional cerebellar regions, prkcba shows expression in the pectoral fin, the otic vesicle and in the proximal convoluted tubule of the kidney, and prkcbb shows prominent expression in different hypothalamic areas. Expression of prkcg is most striking in the cerebellum. As zebrafish PKCs are expressed in structures that are equivalent to mammals, the zebrafish model is well suited to study evolutionary conserved functions of PKCs in development and disease. PMID- 29341135 TI - Phenolic fractions from nine Trifolium species modulate the coagulant properties of blood plasma in vitro without cytotoxicity towards blood cells. AB - OBJECTIVE: The study covers an evaluation of the influence of extracts (1-50 MUg/ml), isolated from aerial parts of nine Trifolium L. species (i.e. T. alexandrinum, T. fragiferum, T. hybridum, T. incarnatum, T. pallidum, T. pratense, T. resupinatum var. majus, T. resupinatum var. resupinatum and T. scabrum) on haemostatic properties of blood plasma. METHODS: The clot formation and fibrinolysis assay (CFF), blood clotting times, the extrinsic and intrinsic coagulation pathway-dependent polymerization of plasma fibrin were measured. The effects of plant extracts on amidolytic activity of thrombin were also evaluated and compared with argatroban, an antithrombotic drug. Cytotoxicity was assessed in a model of blood platelets and as the viability of peripheral blood mononuclear cells. KEY FINDINGS: While no changes in blood clotting times or fibrinolytic properties of blood plasma were found, some fractions impaired the blood plasma coagulation induced by the intrinsic coagulation pathway. Reduction in the maximal velocity of fibrin polymerization was also observed in the clot formation and fibrinolysis assay. No cytotoxicity of Trifolium extracts towards the investigated cells was recorded. CONCLUSIONS: The most efficient anticoagulant activity in plasma was found for T. fragiferum and T. incarnatum extracts, while the T. alexandrinum fraction was the most effective inhibitor of thrombin amidolytic activity. PMID- 29341137 TI - Estimation of Chronological Age from Postmortem Tissues Based on Amino Acid Racemization. AB - Skin and cartilage tissue specimens from 32 male and 13 female corpses aged between 17 and 50 years were collected within 24 h after the death. Each specimen was analyzed for the composition of dextro (D) and levo (L) forms of aspartate, glutamate, and alanine. Linear regression models were constructed using ln [(1 + D/L)/(1 - D/L] equation to define the relationship between the extent of racemization and the chronological age. Aspartate D/L rates from cartilage showed high correlation (r = 0.779, p < 0.001, n = 45). Aspartate D/L rates from skin showed very low correlation (r = 0.356, p < 0.002, n = 44). The multilinear regression model of both aspartate D/L rates of cartilage and skin tissues in 44 cases yielded a coefficient of r = 0.828 (p < 0.001). In conclusion, only racemization rate of Aspartate both in the skin and the cartilage tissues correlated with the chronological age. Our results may imply that the age can be estimated more precisely if two different tissue specimens are obtained from one corpse. PMID- 29341138 TI - Model fitting for small skin permeability data sets: hyperparameter optimisation in Gaussian Process Regression. AB - OBJECTIVES: The aim of this study was to investigate how to improve predictions from Gaussian Process models by optimising the model hyperparameters. METHODS: Optimisation methods, including Grid Search, Conjugate Gradient, Random Search, Evolutionary Algorithm and Hyper-prior, were evaluated and applied to previously published data. Data sets were also altered in a structured manner to reduce their size, which retained the range, or 'chemical space' of the key descriptors to assess the effect of the data range on model quality. KEY FINDINGS: The Hyper prior Smoothbox kernel results in the best models for the majority of data sets, and they exhibited significantly better performance than benchmark quantitative structure-permeability relationship (QSPR) models. When the data sets were systematically reduced in size, the different optimisation methods generally retained their statistical quality, whereas benchmark QSPR models performed poorly. CONCLUSIONS: The design of the data set, and possibly also the approach to validation of the model, is critical in the development of improved models. The size of the data set, if carefully controlled, was not generally a significant factor for these models and that models of excellent statistical quality could be produced from substantially smaller data sets. PMID- 29341139 TI - Exploitation of the Ultraviolet Properties and Machine Cut Edges of Paper to Associate and Sequence Sheets in a Ream. AB - Previously unreported line patterns visible under ultraviolet light were observed on a proportion of plain white A4 printer/copier paper from different manufacturers. These Ultraviolet Line Patterns (UVLPs) usually appear as stripes down the vertical length of the paper. Typically, the UVLPs were found to "repeat" through the ream in a predictable way, while also changing. It is postulated that the repeating nature of the UVLPs is a result of the way that paper is manufactured. This leads to the ability to sequence the sheets compared to their original source paper. Even in the absence of UVLPs, it is possible to use our observation of the manufacturing process to anticipate the order of several sheets of paper and conclusively associate them, in some cases, by physically fitting their machine cut edges and crossing paper fibers. Such a novel approach to examining questioned documents would be highly useful in forensic casework. PMID- 29341140 TI - Lipoprotein modifications by gingipains of Porphyromonas gingivalis. AB - BACKGROUND AND OBJECTIVE: Several studies have shown an association between periodontitis and cardiovascular disease (CVD). Atherosclerosis is the major cause of CVD, and a key event in the development of atherosclerosis is accumulation of lipoproteins within the arterial wall. Bacteria are the primary etiologic agents in periodontitis and Porphyromonas gingivalis is the major pathogen in the disease. Several studies support a role of modified low-density lipoprotein (LDL) in atherogenesis; however, the pathogenic stimuli that induce the changes and the mechanisms by which this occur are unknown. This study aims to identify alterations in plasma lipoproteins induced by the periodontopathic species of bacterium, P. gingivalis, in vitro. MATERIAL AND METHODS: Plasma lipoproteins were isolated from whole blood treated with wild-type and gingipain mutant (lacking either the Rgp- or Kgp gingipains) P. gingivalis by density/gradient-ultracentrifugation and were studied using 2-dimensional gel electrophoresis followed by matrix-assisted laser desorption/ionization mass spectrometry. Porphyromonas gingivalis-induced lipid peroxidation and antioxidant levels were measured by thiobarbituric acid-reactive substances and antioxidant assay kits, respectively, and lumiaggregometry was used for measurement of reactive oxygen species (ROS) and aggregation. RESULTS: Porphyromonas gingivalis exerted substantial proteolytic effects on the lipoproteins. The Rgp gingipains were responsible for producing 2 apoE fragments, as well as 2 apoB-100 fragments, in LDL, and the Kgp gingipain produced an unidentified fragment in high-density lipoproteins. Porphyromonas gingivalis and its different gingipain variants induced ROS and consumed antioxidants. Both the Rgp and Kgp gingipains were involved in inducing lipid peroxidation. CONCLUSION: Porphyromonas gingivalis has the potential to change the expression of lipoproteins in blood, which may represent a crucial link between periodontitis and CVD. PMID- 29341141 TI - Dual Effects of Creatinine on the Formation of 2-Amino-1-Methyl-6-Phenylimidazo [4,5-b]pyridine (PhIP). AB - : Creatinine was found to not only act as a precursor of 2-amino-1-methyl-6 phenylimidazo [4,5-b]pyridine (PhIP) formation but also inhibit PhIP formation in a creatinine/phenylalanine model system. The dual mechanistic effects of creatinine on PhIP formation were then investigated in a model system. Adducts of creatinine-PhIP were detected by quadrupole-time-of-flight mass spectrometry and were found to be a likely explanation for the substantial decrease in the yield of PhIP when excess creatinine was supplied. Structures of probable adducts were predicted in molecular docking studies, which showed that hydrogen bonds were formed between creatinine and PhIP in 1:1 and 2:1 ratios. Furthermore, the active sites during creatinine-PhIP adduct formation (the primary amino groups [N2 -] and sp2 nitrogen atoms [N3 ] of creatinine and PhIP) match the active sites of PhIP metabolism and adducts of PhIP/lipid-derived reactive carbonyls. This verifies that creatinine inhibits PhIP production via the formation of adducts with hydrogen bonds at the N2 and N3 sites. PRACTICAL APPLICATION: This study enhances the understanding of how creatinine affects PhIP formation, reveals a new PhIP inhibition mechanism, and will be useful for developing technology to control PhIP formation during food processing. PMID- 29341142 TI - Evolutionary and genetic features of drug targets. AB - In the modern drug discovery pipeline, identification of novel drug targets is a critical step. Despite rapid progress in developing biomedical techniques, it is still a great challenge to find promising new targets from the ample space of human genes. This fact is partially responsible for the situation of "more investments, fewer drugs" in the pharmaceutical industry. A series of recent researches revealed that successfully targeted genes share some common evolutionary and genetic features, which means that the knowledge accumulated in modern evolutionary biology and genetics is very helpful to identify potential drug targets and to find new drugs as well. In this article, we comprehensively summarize the links between human drug targets and genetic diseases and their evolutionary origins, with an attempt to introduce these novel concepts and their medical implications to the biomedical community. PMID- 29341143 TI - Loss of alkaline ceramidase inhibits autophagy in Arabidopsis and plays an important role during environmental stress response. AB - Sphingolipids, a class of bioactive lipids found in cell membranes, can modulate the biophysical properties of the membranes and play a critical role in signal transduction. Sphingolipids are involved in autophagy in humans and yeast, but their role in autophagy in plants is not well understood. In this study, we reported that the AtACER, an alkaline ceramidase that hydrolyses ceramide to long chain base (LCB), functions in autophagy process in Arabidopsis. Our empirical data showed that the loss of AtACER inhibited autophagy, and its overexpression promoted autophagy under nutrient, salinity, and oxidative stresses. Interestingly, nitrogen deprivation significantly affected the sphingolipid's profile in Arabidopsis thaliana, especially the LCBs. Furthermore, the exogenous application of LCBs also induced autophagy. Our findings revealed a novel function of AtACER, where it was found to involve in the autophagy process, thus, playing a crucial role in the maintenance of a dynamic loop between sphingolipids and autophagy for cellular homeostasis under various environmental stresses. PMID- 29341144 TI - Role of micro-RNAs in breast cancer surgery. AB - BACKGROUND: The management of breast cancer has changed dramatically in the molecular era. Micro-RNAs can contribute to multiple facets of cancer surgery. METHODS: This narrative review, based on years of research on the role of micro RNAs, focused on the potential of these small, robust RNAs to influence all aspects of breast cancer surgery. RESULTS: Micro-RNAs have a potential role as biomarkers in the diagnosis, prognosis and evaluation of response to therapy in breast cancer. They may also contribute to future therapeutic strategies. CONCLUSION: The molecular era has changed understanding of cancer. Micro-RNAs have the potential for use in personalized cancer strategies. PMID- 29341145 TI - Cancer surgery in the genomic era. PMID- 29341146 TI - Defining the molecular pathology of pancreatic body and tail adenocarcinoma. AB - BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) remains a dismal disease, with very little improvement in survival over the past 50 years. Recent large scale genomic studies have improved understanding of the genomic and transcriptomic landscape of the disease, yet very little is known about molecular heterogeneity according to tumour location in the pancreas; body and tail PDACs especially tend to have a significantly worse prognosis. The aim was to investigate the molecular differences between PDAC of the head and those of the body and tail of the pancreas. METHODS: Detailed correlative analysis of clinicopathological variables, including tumour location, genomic and transcriptomic data, was performed using the Australian Pancreatic Cancer Genome Initiative (APGI) cohort, part of the International Cancer Genome Consortium study. RESULTS: Clinicopathological data were available for 518 patients recruited to the APGI, of whom 421 underwent genomic analyses; 179 of these patients underwent whole-genome and 96 RNA sequencing. Patients with tumours of the body and tail had significantly worse survival than those with pancreatic head tumours (12.1 versus 22.0 months; P = 0.001). Location in the body and tail was associated with the squamous subtype of PDAC. Body and tail PDACs enriched for gene programmes involved in tumour invasion and epithelial-to-mesenchymal transition, as well as features of poor antitumour immune response. Whether this is due to a molecular predisposition from the outset, or reflects a later time point on the tumour molecular clock, requires further investigation using well designed prospective studies in pancreatic cancer. CONCLUSION: PDACs of the body and tail demonstrate aggressive tumour biology that may explain worse clinical outcomes. PMID- 29341147 TI - Genotype and risk of tumour rupture in gastrointestinal stromal tumour. AB - BACKGROUND: Tumour rupture is a strong predictor of poor outcome in gastrointestinal stromal tumours (GISTs) of the stomach and small intestine. The objective was to determine whether tumour genotype was associated with risk of rupture. METHODS: Rupture was classified according to the definition proposed by the Oslo Sarcoma Group. Since January 2000, data were registered retrospectively for all patients at Oslo University Hospital undergoing surgery for localized GIST of the stomach or small intestine. Tumour genotype was analysed by Sanger sequencing. RESULTS: Two hundred and nine patients with mutation data available were identified. Tumour rupture occurred in 37 patients. Among the 155 patients with KIT exon 11 mutations, an increased risk of rupture was observed with a deletion or insertion-deletion (25 of 86, 29 per cent) compared with substitutions (5 of 50, 10 per cent) or duplications/insertions (2 of 19, 11 per cent) (P = 0.014). Notably, rupture occurred in 17 of 46 tumours (37 per cent) with deletions involving codons 557 and 558 (del557/558) versus 15 of 109 (13.8 per cent) with other exon 11 mutations (P = 0.002). This association was confined to gastric tumours: 12 of 34 (35 per cent) with del557/558 ruptured versus six of 77 (8 per cent) with other exon 11 mutations (P = 0.001). In multivariable logistic regression analysis, del557/558 and tumour size were associated with an increased likelihood of tumour rupture, but mitotic count was not. CONCLUSION: Gastric GISTs with KIT exon 11 deletions involving codons 557 and 558 are at increased risk of tumour rupture. This high-risk feature can be identified in the diagnostic evaluation and should be included in the assessment when neoadjuvant imatinib treatment is considered. PMID- 29341148 TI - Outcomes after prophylactic gastrectomy for hereditary diffuse gastric cancer. AB - BACKGROUND: Patients with hereditary diffuse gastric cancer and a CDH1 mutation have a 60-80 per cent lifetime risk of developing diffuse gastric cancer. Total prophylactic gastrectomy eliminates this risk, but is associated with considerable morbidity. The effectiveness (removal of all gastric mucosa) and outcomes of this procedure were evaluated retrospectively. METHODS: All consecutive individuals undergoing a prophylactic gastrectomy for a CDH1 mutation or gastric signet ring cell foci at the authors' institute between 2005 and 2017 were included. RESULTS: In 25 of 26 patients, intraoperative frozen-section examination (proximal resection margin) was used to verify complete removal of gastric mucosa. All definitive resection margins were free of gastric mucosa, but only after the proximal margin had been reresected in nine patients. In the first year after surgery, five of the 26 patients underwent a relaparotomy for adhesiolysis (2 patients) or jejunostomy-related complications (3 patients). Six patients were readmitted to the hospital within 1 year for nutritional and/or psychosocial support (4 patients) or surgical reintervention (2 patients). Mean weight loss after 1 year was 15 (95 per cent c.i. 12 to 18) per cent. For the 25 patients with a follow-up at 1 year or more, functional complaints were reported more frequently at 1 year than at 3 months after the operation: bile reflux (15 versus 11 patients respectively) and dumping (11 versus 7 patients). The majority of patients who worked or studied before surgery (15 of 19) had returned fully to these activities within 1 year. CONCLUSION: The considerable morbidity and functional consequences of gastrectomy should be considered when counselling individuals with an inherited predisposition to diffuse gastric cancer. Intraoperative frozen-section examination is recommended to remove all risk bearing gastric mucosa. PMID- 29341149 TI - Quality-of-life implications of risk-reducing cancer surgery. AB - BACKGROUND: Modern advances in genetic sequencing techniques have allowed for increased availability of genetic testing for hereditary cancer syndromes. Consequently, more people are being identified as mutation carriers and becoming aware of their increased risk of malignancy. Testing is commonplace for many inheritable cancer syndromes, and with that comes the knowledge of being a gene carrier for some patients. With increased risk of malignancy, many guidelines recommend that gene carriers partake in risk reduction strategies, including risk reducing surgery for some syndromes. This review explores the quality-of-life consequences of genetic testing and risk-reducing surgery. METHODS: A narrative review of PubMed/MEDLINE was performed, focusing on the health-related quality-of life implications of surgery for hereditary breast and ovarian cancer, familial adenomatous polyposis and hereditary diffuse gastric cancer. RESULTS: Risk reducing surgery almost uniformly decreases cancer anxiety and affects patients' quality of life. CONCLUSION: Although the overwhelming quality-of-life implications of surgery are neutral to positive, risk-reducing surgery is irreversible and can be associated with short- and long-term side-effects. PMID- 29341150 TI - Effect of Akt activation and experimental pharmacological inhibition on responses to neoadjuvant chemoradiotherapy in rectal cancer. AB - BACKGROUND: Neoadjuvant chemoradiotherapy (CRT) is one of the preferred initial treatment strategies for locally advanced rectal cancer. Responses are variable, and most patients still require surgery. The aim of this study was to identify molecular mechanisms determining poor response to CRT. METHODS: Global gene expression and pathway enrichment were assessed in pretreatment biopsies from patients with non-metastatic cT2-4 N0-2 rectal cancer within 7 cm of the anal verge. Downstream Akt activation was assessed in an independent set of pretreatment biopsies and in colorectal cancer cell lines using immunohistochemistry and western blot respectively. The radiosensitizing effects of the Akt inhibitor MK2206 were assessed using clonogenic assays and xenografts in immunodeficient mice. RESULTS: A total of 350 differentially expressed genes were identified, of which 123 were upregulated and 199 downregulated in tumours from poor responders. Mitochondrial oxidative phosphorylation (P < 0.001) and phosphatidylinositol signalling pathways (P < 0.050) were identified as significantly enriched pathways among the set of differentially expressed genes. Deregulation of both pathways is known to result in Akt activation, and high immunoexpression of phosphorylated Akt S473 was observed among patients with a poor histological response (tumour regression grade 0-2) to CRT (75 per cent versus 48 per cent in those with a good or complete response; P = 0.016). Akt activation was also confirmed in the radioresistant cell line SW480, and a 50 per cent improvement in sensitivity to CRT was observed in vitro and in vivo when SW480 cells were exposed to the Akt inhibitor MK2206 in combination with radiation and 5-fluorouracil. CONCLUSION: Akt activation is a key event in the response to CRT. Pharmacological inhibition of Akt activation may enhance the effects of CRT. Surgical relevance Organ preservation is an attractive alternative in rectal cancer management following neoadjuvant chemoradiotherapy (CRT) to avoid the morbidity of radical surgery. Molecular steps associated with tumour response to CRT may provide a useful tool for the identification of patients who are candidates for no immediate surgery. In this study, tumours resistant to CRT were more likely to have activation of specific genetic pathways that result in phosphorylated Akt (pAkt) activation. Pretreatment biopsy tissues with high immunoexpression of pAkt were more likely to exhibit a poor histological response to CRT. In addition, the introduction of a pAkt inhibitor to cancer cell lines in vitro and in vivo led to a significant improvement in sensitivity to CRT. Identification of pAkt-activated tumours may thus allow the identification of poor responders to CRT. In addition, the concomitant use of pAkt inhibitors to increase sensitivity to CRT in patients with rectal cancer may constitute an interesting strategy for increasing the chance of a complete response to treatment and organ preservation. PMID- 29341152 TI - Meta-analysis of the prognostic value of CpG island methylator phenotype in gastric cancer. AB - BACKGROUND: CpG island methylator phenotype (CIMP) has been identified as a distinct molecular subtype of gastric cancer, yet associations with survival are conflicting. A meta-analysis was performed to estimate the prognostic significance of CIMP. METHODS: Embase, MEDLINE, PubMed, PubMed Central and Cochrane databases were searched systematically for studies related to the association between CIMP and survival in patients undergoing potentially curative resection for gastric cancer. RESULTS: A total of 918 patients from ten studies were included, and the median proportion of tumours with CIMP-high (CIMP-H) status was 40.9 (range 4.8-63) per cent. Gene panels for assessing CIMP status varied between the studies. Pooled analysis suggested that specimens exhibiting CIMP-H were associated with poorer 5-year survival (odds ratio (OR) for death 1.48, 95 per cent c.i. 1.10 to 1.99; P = 0.009). Significant heterogeneity was observed between studies (I2 = 88 per cent, P < 0.001). Subgroup analysis according to whether studies showed a tendency towards poor (5 studies) or improved (5) outcomes for patients with CIMP-H tumours, revealed that CIMP-H was associated with both poor (OR for death 8.15, 4.65 to 14.28, P < 0.001; heterogeneity I2 = 52 per cent, P = 0.08) and improved (OR 0.42, 0.27 to 0.65; P < 0.001, heterogeneity I2 = 0 per cent, P = 0.960) survival. CONCLUSION: There was heterogeneity in the gene panels used to identify CIMP, which may explain the survival differences. PMID- 29341153 TI - Circulating tumour cells and DNA as liquid biopsies in gastrointestinal cancer. AB - BACKGROUND: Blood is the most extensively studied body fluid and, because it contains circulating tumour cells (CTCs) and circulating tumour-derived cell-free DNA (ctDNA), it may represent a liquid biopsy for cancer. Methods for enrichment and detection of CTCs and ctDNA, their clinical applications and future opportunities in gastrointestinal cancers were the focus of this review. METHODS: The PubMed database was searched for literature up to 24 June 2017, with a focus on the past 10 years. Identified articles were further scrutinized for relevant references. Articles were those in English relating to colorectal, gastric and pancreatic cancer. RESULTS: Both CTCs and ctDNA are in low abundance compared with other cellular components of blood, but effective enrichment and highly sensitive techniques are available for their detection. Potential clinical applications of these liquid biopsies include screening, prognostic stratification, therapy administration, monitoring of treatment effect or resistance, and surveillance. Liquid biopsies provide opportunities to reduce the need for invasive tissue sampling, especially in the context of intratumoral heterogeneity and the need for tumour genotyping. CONCLUSION: Liquid biopsies have applications in gastrointestinal cancers to improve clinical decision making. PMID- 29341151 TI - Gut microbiome influences on anastomotic leak and recurrence rates following colorectal cancer surgery. AB - BACKGROUND: The pathogenesis of colorectal cancer recurrence after a curative resection remains poorly understood. A yet-to-be accounted for variable is the composition and function of the microbiome adjacent to the tumour and its influence on the margins of resection following surgery. METHODS: PubMed was searched for historical as well as current manuscripts dated between 1970 and 2017 using the following keywords: 'colorectal cancer recurrence', 'microbiome', 'anastomotic leak', 'anastomotic failure' and 'mechanical bowel preparation'. RESULTS: There is a substantial and growing body of literature to demonstrate the various mechanisms by which environmental factors act on the microbiome to alter its composition and function with the net result of adversely affecting oncological outcomes following surgery. Some of these environmental factors include diet, antibiotic use, the methods used to prepare the colon for surgery and the physiological stress of the operation itself. CONCLUSION: Interrogating the intestinal microbiome using next-generation sequencing technology has the potential to influence cancer outcomes following colonic resection. PMID- 29341154 TI - Emerging methods in colorectal cancer screening. PMID- 29341155 TI - Long-term outcome of prophylactic thyroidectomy in children carrying RET germline mutations. AB - BACKGROUND: A comprehensive assessment has not been undertaken of long-term outcomes in children carrying germline RET mutations and undergoing prophylactic thyroidectomy with the aim of preventing medullary thyroid cancer (MTC). METHODS: A retrospective outcome study (1994-2017) of prophylactic thyroidectomy in children, with and without central node dissection, was performed at a tertiary surgical centre. RESULTS: Some 167 children underwent prophylactic thyroidectomy, 109 without and 58 with concomitant central node dissection. In the highest-risk mutational category, MTC was found in five of six children (83 per cent) aged 3 years or less. In the high-risk category, MTC was present in six of 20 children (30 per cent) aged 3 years or less, 16 of 36 (44 per cent) aged 4-6 years, and 11 of 16 (69 per cent) aged 7-12 years (P = 0.081). In the moderate-risk category, MTC was seen in one of nine children (11 per cent) aged 3 years or less, one of 26 (4 per cent) aged 4-6 years, three of 26 (12 per cent) aged 7-12 years, and seven of 16 (44 per cent) aged 13-18 years (P = 0.006). Postoperative hypoparathyroidism was more frequent in older children (32 per cent in the oldest age group versus 3 per cent in the youngest; P = 0.002), whether or not central node dissection was carried out. Three children developed recurrent laryngeal nerve palsy; all had undergone central node dissection (P = 0.040). All complications resolved within 6 months. Postoperative normalization of calcitonin serum levels was achieved in 114 (99.1 per cent) of 115 children with raised preoperative values. No residual structural disease or recurrence was observed. CONCLUSION: Early prophylactic thyroidectomy is a viable surgical concept in experienced hands, sparing older children the postoperative morbidity associated with delayed neck surgery. PMID- 29341156 TI - Introducing genomics into cancer care. PMID- 29341159 TI - Clinicopathological, genomic and immunological factors in colorectal cancer prognosis. AB - BACKGROUND: Numerous factors affect the prognosis of colorectal cancer (CRC), many of which have long been identified, such as patient demographics and the multidisciplinary team. In more recent years, molecular and immunological biomarkers have been shown to have a significant influence on patient outcomes. Whilst some of these biomarkers still require ongoing validation, if proven to be worthwhile they may change our understanding and future management of CRC. The aim of this review was to identify the key prognosticators of CRC, including new molecular and immunological biomarkers, and outline how these might fit into the whole wider context for patients. METHODS: Relevant references were identified through keyword searches of PubMed and Embase Ovid SP databases. RESULTS: In recent years there have been numerous studies outlining molecular markers of prognosis in CRC. In particular, the Immunoscore(r) has been shown to hold strong prognostic value. Other molecular biomarkers are useful in guiding treatment decisions, such as mutation testing of genes in the epidermal growth factor receptor pathway. However, epidemiological studies continue to show that patient demographics are fundamental in predicting outcomes. CONCLUSION: Current strategies for managing CRC are strongly dependent on clinicopathological staging, although molecular testing is increasingly being implemented into routine clinical practice. As immunological biomarkers are further validated, their testing may also become routine. To obtain clinically useful information from new biomarkers, it is important to implement them into a model that includes all underlying fundamental factors, as this will enable the best possible outcomes and deliver true precision medicine. PMID- 29341157 TI - Minimizing inequality in access to precision medicine in breast cancer by real time population-based molecular analysis in the SCAN-B initiative. AB - BACKGROUND: Selection of systemic therapy for primary breast cancer is currently based on clinical biomarkers along with stage. Novel genomic tests are continuously being introduced as more precise tools for guidance of therapy, although they are often developed for specific patient subgroups. The Sweden Cancerome Analysis Network - Breast (SCAN-B) initiative aims to include all patients with breast cancer for tumour genomic analysis, and to deliver molecular subtype and mutational data back to the treating physician. METHODS: An infrastructure for collection of blood and fresh tumour tissue from all patients newly diagnosed with breast cancer was set up in 2010, initially including seven hospitals within the southern Sweden regional catchment area, which has 1.8 million inhabitants. Inclusion of patients was implemented into routine clinical care, with collection of tumour tissue at local pathology departments for transport to the central laboratory, where routines for rapid sample processing, RNA sequencing and biomarker reporting were developed. RESULTS: More than 10 000 patients from nine hospitals have currently consented to inclusion in SCAN-B with high (90 per cent) inclusion rates from both university and secondary hospitals. Tumour samples and successful RNA sequencing are being obtained from more than 70 per cent of patients, showing excellent representation compared with the national quality registry as a truly population-based cohort. Molecular biomarker reports can be delivered to multidisciplinary conferences within 1 week. CONCLUSION: Population-based collection of fresh tumour tissue is feasible given a decisive joint effort between academia and collaborative healthcare groups, and with governmental support. An infrastructure for genomic analysis and prompt data output paves the way for novel systemic therapy for patients from all hospitals, irrespective of size and location. PMID- 29341160 TI - Genetic analysis of surgical margins in oral cavity cancer. AB - BACKGROUND: A histological, tumour-free surgical margin does not guarantee recurrence-free survival in patients with cancer. This study investigated the association between microsatellite alteration in tumour-free surgical margins and local recurrence in patients with oral cavity squamous cell carcinoma. METHODS: Patients with histologically confirmed oral cavity squamous cell carcinoma were enrolled in this prospective study. Cancerous specimens, corresponding surgical margins and peripheral blood were obtained. Microsatellite alteration was investigated using six dinucleotide microsatellite markers. All samples were amplified by PCR, followed by automatic fragment analysis. RESULTS: Microsatellite alteration was identified in 100 specimens (69.0 per cent) from 145 patients. Among them, 85 specimens carried loss of heterozygosity, whereas 55 had microsatellite instability (MSI). Patients with MSI at the surgical margin had a higher risk of local recurrence on multivariable analysis (odds ratio 7.17, 95 per cent c.i. 3.49 to 14.73). CONCLUSION: Molecular assessment of surgical margins can help identify patients at risk of local recurrence. PMID- 29341161 TI - Modalities for image- and molecular-guided cancer surgery. AB - BACKGROUND: Surgery is the cornerstone of treatment for many solid tumours. A wide variety of imaging modalities are available before surgery for staging, although surgeons still rely primarily on visual and haptic cues in the operating environment. Image and molecular guidance might improve the adequacy of resection through enhanced tumour definition and detection of aberrant deposits. Intraoperative modalities available for image- and molecular-guided cancer surgery are reviewed here. METHODS: Intraoperative cancer detection techniques were identified through a systematic literature search, with selection of peer reviewed publications from January 2012 to January 2017. Modalities were reviewed, described and compared according to 25 predefined characteristics. To summarize the data in a comparable way, a three-point rating scale was applied to quantitative characteristics. RESULTS: The search identified ten image- and molecular-guided surgery techniques, which can be divided into four groups: conventional, optical, nuclear and endogenous reflectance modalities. Conventional techniques are the most well known imaging modalities, but unfortunately have the drawback of a defined resolution and long acquisition time. Optical imaging is a real-time modality; however, the penetration depth is limited. Nuclear modalities have excellent penetration depth, but their intraoperative use is limited by the use of radioactivity. Endogenous reflectance modalities provide high resolution, although with a narrow field of view. CONCLUSION: Each modality has its strengths and weaknesses; no single technique will be suitable for all surgical procedures. Strict selection of modalities per cancer type and surgical requirements is required as well as combining techniques to find the optimal balance. PMID- 29341162 TI - Impact of genomics on the surgical management of melanoma. AB - BACKGROUND: Although surgery for early-stage melanoma offers the best chance of cure, recent advances in molecular medicine have revolutionized the management of late-stage melanoma, leading to significant improvements in clinical outcomes. Research into the genomic drivers of disease and cancer immunology has not only ushered in a new era of targeted and immune-based therapies for patients with metastatic melanoma, but has also provided new tools for monitoring disease recurrence and selecting therapeutic strategies. These advances present new opportunities and challenges to the surgeon treating patients with melanoma. METHODS: The literature was reviewed to evaluate diagnostic and therapeutic advances in the management of cutaneous melanoma, and to highlight the impact of these advances on surgical decision-making. RESULTS: Genomic testing is not required in the surgical management of primary melanoma, although it can provide useful information in some situations. Circulating nucleic acids from melanoma cells can be detected in peripheral blood to predict disease recurrence before it manifests clinically, but validation is required before routine clinical application. BRAF mutation testing is the standard of care for all patients with advanced disease to guide therapy, including the planning of surgery in adjuvant and neoadjuvant settings. CONCLUSION: Surgery remains central for managing primary melanoma, and is an important element of integrated multidisciplinary care in advanced disease, particularly for patients with resectable metastases. The field will undergo further change as clinical trials address the relationships between surgery, radiotherapy and systemic therapy for patients with high-risk, early-stage and advanced melanoma. PMID- 29341163 TI - Extent of surgery for phaeochromocytomas in the genomic era. AB - BACKGROUND: Germline mutations are present in 20-30 per cent of patients with phaeochromocytoma. For patients who develop bilateral disease, complete removal of both adrenal glands (total adrenalectomy) will result in lifelong adrenal insufficiency with an increased risk of death from adrenal crisis. Unilateral/bilateral adrenal-sparing surgery (subtotal adrenalectomy) offers preservation of cortical function and independence from steroids, but leaves the adrenal medulla in situ and thus at risk of developing new and possibly malignant disease. Here, present knowledge about how tumour genotype relates to clinical behaviour is reviewed, and application of this knowledge when choosing the extent of adrenalectomy is discussed. METHODS: A literature review was undertaken of the penetrance of the different genotypes in phaeochromocytomas, the frequency of bilateral disease and malignancy, and the underlying pathophysiological mechanisms, with emphasis on explaining the clinical phenotypes of phaeochromocytomas and their associated syndromes. RESULTS: Patients with bilateral phaeochromocytomas most often have multiple endocrine neoplasia type 2 (MEN2) or von Hippel-Lindau disease (VHL) with high-penetrance mutations for benign disease, whereas patients with mutations in the genes encoding SDHB (succinate dehydrogenase subunit B) or MAX (myelocytomatosis viral proto-oncogene homologue-associated factor X) are at increased risk of malignancy. CONCLUSION: Adrenal-sparing surgery should be the standard approach for patients who have already been diagnosed with MEN2 or VHL when operating on the first side, whereas complete removal of the affected adrenal gland(s) is generally recommended for patients with SDHB or MAX germline mutations. Routine assessment of a patient's genotype, even after the first operation, can be crucial for adopting an appropriate strategy for follow-up and future surgery. PMID- 29341165 TI - Histopathological and molecular classification of colorectal cancer and corresponding peritoneal metastases. AB - BACKGROUND: Patients with colorectal peritoneal carcinomatosis have a very poor prognosis. The recently developed consensus molecular subtype (CMS) classification of primary colorectal cancer categorizes tumours into four robust subtypes, which could guide subtype-targeted therapy. CMS4, also known as the mesenchymal subtype, has the greatest propensity to form distant metastases. CMS4 status and histopathological features of colorectal peritoneal carcinomatosis were investigated in this study. METHODS: Fresh-frozen tissue samples from primary colorectal cancer and paired peritoneal metastases from patients who underwent cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy were collected. Histopathological features were analysed, and a reverse transcriptase-quantitative PCR test was used to assess CMS4 status of all collected lesions. RESULTS: Colorectal peritoneal carcinomatosis was associated with adverse histopathological characteristics, including a high percentage of stroma in both primary tumours and metastases, and poor differentiation grade and high-grade tumour budding in primary tumours. Furthermore, CMS4 was significantly enriched in primary tumours with peritoneal metastases, compared with unselected stage I-IV tumours (60 per cent (12 of 20) versus 23 per cent; P = 0.002). The majority of peritoneal metastases (75 per cent, 21 of 28) were also classified as CMS4. Considerable intrapatient subtype heterogeneity was observed. Notably, 15 of 16 patients with paired tumours had at least one CMS4-positive tumour location. CONCLUSION: Significant enrichment for CMS4 was observed in colorectal peritoneal carcinomatosis. Surgical relevance Cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) improves survival of selected patients with colorectal peritoneal carcinomatosis, but recurrence is common. Histopathological and molecular analysis of colorectal peritoneal carcinomatosis could provide clues for development of novel therapies. In this study, colorectal peritoneal carcinomatosis was found to be enriched for tumours with high stromal content and CMS4-positive status. To further improve prognosis for patients with colorectal peritoneal carcinomatosis, therapies that target tumour-stroma interaction could be added to CRS-HIPEC. PMID- 29341167 TI - The Influence of Colloid Osmotic Pressure on Hydrostatic Pressures in High- and Low-Flux Hemodialyzers. AB - The aim of this study was to examine the relationship between hydrostatic trans membrane pressure (TMPh ) and colloid osmotic pressure (COP) in low-flux (LF) and high-flux (HF) dialyzers. Hydrostatic pressures were measured in dialyzers distinguished by their ultrafiltration coefficient Kuf (16 and 85 mL/h/mm Hg) under constant dialysate flow and variable blood flow (Qb ) ranging from 0 to 400 mL/min using (i) alginate (70 kDa) dissolved in dialysate, (ii) diluted, undiluted, and concentrated plasma, or (iii) whole blood at different hematocrit, all in absence of ultrafiltration (UF). For a given fluid, TMPh linearly increased with increasing Qb . The intercept of the linear TMPh to Qb relationship correlated with measured COP with an average bias of 1.00 +/- 2.26 mm Hg and a concordance correlation coefficient of 0.98. The slope of the linear TMPh to Qb relationship increased with increasing sample viscosity and was much larger in HF dialyzers under otherwise identical operating conditions, most likely because of increased internal filtration. The TMPh to Qb relationship measured in dialyzers in absence of UF can be described by the intercept related to measured COP and the slope related to internal filtration. This relationship could be of interest to estimate internal filtration and COP under in vivo conditions. PMID- 29341164 TI - Patient-derived organoid models help define personalized management of gastrointestinal cancer. AB - BACKGROUND: The prognosis of patients with different gastrointestinal cancers varies widely. Despite advances in treatment strategies, such as extensive resections and the addition of new drugs to chemotherapy regimens, conventional treatment strategies have failed to improve survival for many tumours. Although promising, the clinical application of molecularly guided personalized treatment has proven to be challenging. This narrative review focuses on the personalization of cancer therapy using patient-derived three-dimensional 'organoid' models. METHODS: A PubMed search was conducted to identify relevant articles. An overview of the literature and published protocols is presented, and the implications of these models for patients with cancer, surgeons and oncologists are explained. RESULTS: Organoid culture methods have been established for healthy and diseased tissues from oesophagus, stomach, intestine, pancreas, bile duct and liver. Because organoids can be generated with high efficiency and speed from fine-needle aspirations, biopsies or resection specimens, they can serve as a personal cancer model. Personalized treatment could become a more standard practice by using these cell cultures for extensive molecular diagnosis and drug screening. Drug sensitivity assays can give a clinically actionable sensitivity profile of a patient's tumour. However, the predictive capability of organoid drug screening has not been evaluated in prospective clinical trials. CONCLUSION: High-throughput drug screening on organoids, combined with next-generation sequencing, proteomic analysis and other state-of-the-art molecular diagnostic methods, can shape cancer treatment to become more effective with fewer side-effects. PMID- 29341168 TI - In search of a counter you can count on: relative efficacy of human visual and automated colony counting. AB - : To evaluate comparative efficiency of traditional vs automated colony counting methods, cultures of Escherichia coli (ATCC 25945), Staphylococcus epidermidis (ATCC 12225), Streptococcus pyogenes (ATCC19615) and Streptococcus pneumoniae (ATCC49619) were prepared as pure cultures and mixed cultures at 0.5 McFarland standard and serial dilutions were performed. Plates were inoculated in triplicate with 50, 125, 250 and 500 colony forming units and counted by four researchers, visually and using each of the automated counters. Colony count and counting time were recorded. The pattern of efficiency for all bacterial species was similar: plates with low counts were accurate and quick to count for all methods, with an increase in time and a decrease in accuracy and precision as counts rose. Higher counts of single round colonies required less time and had greater precision with automated counters than human visual counting counts with no loss of accuracy; however, counts were reduced in accuracy and increased in time for species with less regular morphology or when plates had mixed species. Surprisingly, a free phone application was only slightly less precise and more time consuming than the high-end professional counter indicating that automation may be achievable at lower cost than expected. SIGNIFICANCE AND IMPACT OF THE STUDY: Colony quantification is essential in clinical and research settings as well as pedagogy at the college level. Human visual (HV) counting, the most common method, is time consuming and fraught with errors. The time, accuracy and precision of HV counting were compared to a high-end professional automated counter, an inexpensive phone application and a free phone application. Low cost benefits of increased speed and accuracy with automated counting are maximized when counting single round colonies; but much reduced if colonies have irregular morphology or demonstrate haemolysis. PMID- 29341169 TI - False-positive result when a diphenylcarbazide spot test is used on trivalent chromium-passivated zinc surfaces. AB - BACKGROUND: A colorimetric 1,5-diphenylcarbazide (DPC)-based spot test can be used to identify hexavalent chromium on various metallic and leather surfaces. DPC testing on trivalent chromium-passivated zinc surfaces has unexpectedly given positive results in some cases, apparently indicating the presence of hexavalent chromium; however, the presence of hexavalent chromium has never been confirmed with more sensitive and accurate test methods. OBJECTIVES: To examine the presence of hexavalent chromium on trivalent chromium-passivated zinc surfaces with a DPC-based spot test. METHODS: A colorimetric DPC spot test was used for the initial detection of hexavalent chromium on new and 1-year-aged trivalent chromium-passivated zinc surfaces. Then, X-ray photoelectron spectroscopy (XPS) was performed for all samples. RESULTS: The DPC spot test indicated the presence of hexavalent chromium in aged, but not new, trivalent chromium passivation on zinc; however, subsequent analysis by XPS could not confirm the presence of chromium in a hexavalent state. CONCLUSIONS: Unintended oxidation of DPC induced by atmospheric corrosion is suggested as a possible reason for the false-positive reaction of the DPC test on a trivalent chromium-passivated zinc surface. Further validation of the use of the DPC test for chromium-containing metallic surfaces is required. PMID- 29341172 TI - Statin use and the risk of cardiovascular implantable electronic device infection: A cohort study in a veteran population. AB - BACKGROUND: The rate of cardiovascular implantable electronic device infection (CIEDI) has increased, despite the use of perioperative antibiotics at the time of device placement or revision. This is due, in part, to the presence of multiple comorbid conditions in an elderly population, in general, who require CIED. Statins may have an antibacterial effect, although there is currently no evidence that the likelihood of CIEDI has been impacted by statin use. METHODS: A retrospective cohort study was performed to assess whether statins are associated with a reduced risk of CIEDI. The VA Informatics and Computing Infrastructure (VINCI) database, which includes all veterans who underwent CIED placement between 2008 and 2015, was used. A logistic regression model was constructed to estimate the adjusted risk of CIEDI among patients who were receiving statins after adjusting for confounding factors. RESULTS: Overall, 18,970 CIED procedures were included, and 98% of them were performed in men with a mean age of 71 +/- 11 years. The rate of diabetes mellitus, heart failure, advanced chronic kidney diseases, CIEDI, positive methicillin-resistant Staphylococcus aureus nasal colonization, and statin use were 23%, 15.7%, 3.3%, 1.14%, 12.6%, and 56%, respectively. The logistic regression analysis showed that statins were significantly associated with a reduced risk of CIEDI; after controlling for other effects, the reduction was 66% (odds ratio 0.34 [0.2-0.59], P-value < 0.001). The effect of statins was confirmed by propensity score analysis. CONCLUSIONS: Our study showed that among patients receiving statins who had undergone CIED placement, there was a 66% reduction in subsequent CIEDI. PMID- 29341170 TI - Identification and characterization of a new three-component nicotinic acid hydroxylase NahAB1 B2 from Pusillimonas sp. strain T2. AB - : Nicotinic acid (NA) is ubiquitous in nature and its microbial degradation mechanisms are diverse. In this study, Pusillimonas sp. strain T2 was found to be capable of utilizing NA as sole carbon and nitrogen sources. This strain could completely degrade 300 mg l-1 NA within 3.5 h at 30 degrees C and pH 7.0 and one of the degradation intermediate of NA was identified as 6-hydroxynicotinic acid (6HNA). The draft genome sequences of strain T2 were determined to have a total length of 3.3 M bp and 3054 proteins were predicted. The encoding genes of three component NA hydroxylase (NahAB1 B2 ) genes were identified. The nahAB1 B2 genes were heterologously expressed in the non-NA-degrading Shinella sp. strain HZN7. The recombinant HZN7-pBBR-nahAB1 B2 converted NA into equimolar 6HNA, while the recombinants HZN7-pBBR-nahAB1 (lacking component B2 ) and HZN7-pBBR-nahAB2 (lacking component B1 ) could not convert NA. Cell-free extracts of HZN7-pBBR nahAB1 B2 exhibited NA hydroxylase activity. After addition of an artificial electron acceptor (such as phenazine methosulphate, PMS), the NA hydroxylase activity was significantly increased. The Km and Vmax values for NA were 65.94 MUmol l-1 and 260.80 +/- 5.69 mU mg-1 , respectively, using PMS as an electron acceptor. This study provides a novel insight into the NA degradation by bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY: Nicotinic acid (NA) serves as a model system for the degradation of N-heterocyclic aromatic compounds and the microbial degradation mechanisms are diverse. This is the first time that a three component hydroxylase has been identified. This study provides a novel insight into the NA degradation by bacteria. PMID- 29341173 TI - Strigolactones positively regulate chilling tolerance in pea and in Arabidopsis. AB - Strigolactones (SL) fulfil important roles in plant development and stress tolerance. Here, we characterized the role of SL in the dark chilling tolerance of pea and Arabidopsis by analysis of mutants that are defective in either SL synthesis or signalling. Pea mutants (rms3, rms4, and rms5) had significantly greater shoot branching with higher leaf chlorophyll a/b ratios and carotenoid contents than the wild type. Exposure to dark chilling significantly decreased shoot fresh weights but increased leaf numbers in all lines. Moreover, dark chilling treatments decreased biomass (dry weight) accumulation only in rms3 and rms5 shoots. Unlike the wild type plants, chilling-induced inhibition of photosynthetic carbon assimilation was observed in the rms lines and also in the Arabidopsis max3-9, max4-1, and max2-1 mutants that are defective in SL synthesis or signalling. When grown on agar plates, the max mutant rosettes accumulated less biomass than the wild type. The synthetic SL, GR24, decreased leaf area in the wild type, max3-9, and max4-1 mutants but not in max2-1 in the absence of stress. In addition, a chilling-induced decrease in leaf area was observed in all the lines in the presence of GR24. We conclude that SL plays an important role in the control of dark chilling tolerance. PMID- 29341174 TI - Sensing performance, safety, and patient acceptability of long-dipole cardiac monitor: An innovative axillary insertion. AB - BACKGROUND: The recommended location for implantable cardiac monitor (ICM) insertion is the left pectoral region. We tested whether an innovative left axillary implantation approach could be applicable for a new ICM, characterized by a long sensing dipole. METHODS: We considered a series of 55 patients consecutively implanted with a long-dipole ICM (BioMonitor 2); the first 30 subjects underwent prepectoral location insertion, while the subsequent 25 received the ICM in the axillary region. Sensing performances collected at 1 month follow-up were compared between the two groups. During the visit, each patient was also asked to fill in a brief questionnaire to assess patient acceptability of the device. RESULTS: All patients had a successful insertion of ICM. Mean R-wave amplitude was 0.87 +/- 0.44 mV in the prepectoral group and 1.00 +/- 0.45 mV in the axillary one, without any significant difference. The percentage of patients with visible P wave was also comparable between the two approaches (65.5% vs 68.2%, P = 0.84). None of the patients reported device related issues or discomfort, and ICM was generally well accepted and tolerated by all the involved patients. CONCLUSION: Axillary insertion may represent a valid alternative to the standard one for long-dipole ICM technology providing not only patient acceptability but also high-quality sensing performances. PMID- 29341175 TI - Investigation of the Axial Gap Clearance in a Hydrodynamic-Passive Magnetically Levitated Rotary Blood Pump Using X-Ray Radiography. AB - The HeartWare HVAD is a radial rotary blood pump with a combination of passive magnetic and hydrodynamic bearings to levitate the impeller. The axial gap size between impeller and housing in this bearing and its sensitivity to speed, flow, and pressure difference is difficult to assess. Shear stresses are exceptionally high in this tiny gap making it important for blood damage and related adverse events. Therefore, the aim of this study was to measure the axial gap clearance in the HVAD at different operating conditions employing radiography. To quantify the gap size in the HVAD, the pump was positioned 30 mm in front of the X-ray source employing a microfocus X-ray tube with an acceleration voltage up to 300 kV. Beams were detected on a flat panel detector (Perkin Elmer XRD 1611-CP3). The pump was connected to a tubing circuit with a throttle to adjust flow (0, 5, 10 L/min) and a water glycerol mixture to set the desired viscosity (1, 4, 8 mPas). Rotational speed was varied between 1800 and 3600 rpm. In this study, for clinically relevant conditions at 5 L/min and 2700 rpm, the axial gap was 22 um. The gap size increased with rotational speeds dependent on the viscosity (2.8, 6.9, and 9.4 um/1000 rpm for 1, 4, and 8 mPas, respectively), but was independent from the volume flow and the pressure head at constant speeds. In summary, using X-ray radiographic imaging small gaps in a rotary blood pump during operation can be measured in a nondestructive contact-free way. The axial hydrodynamic bearing gap in the HVAD pump was determined to be in the range of about three times the diameter of a red blood cell. Its dependence on operating volume flow and generated pressure head across the pump is not pronounced. PMID- 29341176 TI - Different responses of supraventricular tachycardia with 2:1 AV block to consecutive premature ventricular contractions. PMID- 29341177 TI - Prevalence of antinuclear and anti-erythrocyte antibodies in healthy cats. AB - BACKGROUND: Positive antinuclear antibody and direct antiglobulin tests support diagnoses such as systemic lupus erythematosus and immune-mediated anemia, respectively. Positive tests may occur in cats, but the prevalence of positive results in healthy cats is not well known. OBJECTIVE: The study's purpose was to determine prevalences of positive antinuclear antibody and direct antiglobulin tests in healthy cats. METHODS: Antinuclear antibody titers were measured by indirect immunofluorescence, and anti-erythrocyte antibodies were measured by the microtitration direct antiglobulin test at 37, 23, and 4 degrees C in 61 client owned and 28 facility-owned cats. Differences between the 2 groups were examined using chi-squared tests. RESULTS: For the antinuclear antibody tests, 70% of client-owned cats were negative, 10% had weak titers (1:40-1:80), and 20% had strong titers (1:160-1:320). Facility-owned cats had significantly fewer positive titers with 96% negative and one positive (1:8). For the antiglobulin test at 37 degrees C, 93% of all cats were negative, 2 cats in each group were positive at low dilutions (1:2), and 2 client-owned cats were transiently positive at high dilutions (>= 1:2048). At 23 degrees C, 90% of all cats were negative, and 2 client-owned and 5 facility-owned cats were positive at low dilutions (1:2-1:8). At 4 degrees C, 67% of client-owned cats had invalid results (negative control well agglutination), and 33% had negative results, while of facility-owned cats 14% had invalid results, 14% had agglutination at low dilutions, and 72% were negative. CONCLUSION: Healthy cats may have positive antinuclear antibody and direct antiglobulin tests, but the prevalence of strong reactions is low. PMID- 29341178 TI - Security Investment in Contagious Networks. AB - Security of the systems is normally interdependent in such a way that security risks of one part affect other parts and threats spread through the vulnerable links in the network. So, the risks of the systems can be mitigated through investments in the security of interconnecting links. This article takes an innovative look at the problem of security investment of nodes on their vulnerable links in a given contagious network as a game-theoretic model that can be applied to a variety of applications including information systems. In the proposed game model, each node computes its corresponding risk based on the value of its assets, vulnerabilities, and threats to determine the optimum level of security investments on its external links respecting its limited budget. Furthermore, direct and indirect nonlinear influences of a node's security investment on the risks of other nodes are considered. The existence and uniqueness of the game's Nash equilibrium in the proposed game are also proved. Further analysis of the model in a practical case revealed that taking advantage of the investment effects of other players, perfectly rational players (i.e., those who use the utility function of the proposed game model) make more cost effective decisions than selfish nonrational or semirational players. PMID- 29341179 TI - Better characterization of vinflunine pharmacokinetics variability and exposure/toxicity relationship to improve its use: Analyses from 18 trials. AB - AIMS: Vinflunine is a novel tubulin-targeted inhibitor indicated as a single agent for the treatment of bladder cancers after failure of prior platinum-based therapy. Its pharmacokinetics (PK) and pharmacodynamics (PD) have been independently characterized through several phase I and phase II studies. However, no global pharmacometric analysis had been conducted as yet. METHODS: Vinflunine concentrations and safety data from 18 phase I and phase II studies were used to conduct population PK and PK/PD analysis, using Nonmem. A four compartment model was used to describe vinflunine PK and several covariates were tested to explain interindividual variability. In terms of PK/PD relationship, a semiphysiological population PK/PD model was applied to describe time course of absolute neutrophil counts (ANC) after vinflunine administration and logistic regression models were used to test the relationship between vinflunine exposure and toxicities. RESULTS: Vinflunine clearance is explained by creatinine clearance, body surface area and combination with PEGylated doxorubicin, leading to a decrease from 28.2 to 25.3% of the interindividual variability. When vinflunine dose is decreased, simulations of ANC time course (via a semiphysiological model) after vinflunine administration show a risk of neutropenia grade 3-4 at cycle 2 always lower than when dose is delayed. As an example, for moderate renal impaired patients, the risk is 42.1% when vinflunine is dosed at 320 mg m-2 once every 4 weeks vs. 23.3% for 280 mg m-2 once every 3 weeks. CONCLUSIONS: We propose for the first time a global comprehensive clinical pharmacological analysis for intravenous vinflunine that may help drive dose adjustment. PMID- 29341180 TI - Risk Assessment of Salmonellosis from Consumption of Alfalfa Sprouts and Evaluation of the Public Health Impact of Sprout Seed Treatment and Spent Irrigation Water Testing. AB - We developed a risk assessment of human salmonellosis associated with consumption of alfalfa sprouts in the United States to evaluate the public health impact of applying treatments to seeds (0-5-log10 reduction in Salmonella) and testing spent irrigation water (SIW) during production. The risk model considered variability and uncertainty in Salmonella contamination in seeds, Salmonella growth and spread during sprout production, sprout consumption, and Salmonella dose response. Based on an estimated prevalence of 2.35% for 6.8 kg seed batches and without interventions, the model predicted 76,600 (95% confidence interval (CI) 15,400-248,000) cases/year. Risk reduction (by 5- to 7-fold) predicted from a 1-log10 seed treatment alone was comparable to SIW testing alone, and each additional 1-log10 seed treatment was predicted to provide a greater risk reduction than SIW testing. A 3-log10 or a 5-log10 seed treatment reduced the predicted cases/year to 139 (95% CI 33-448) or 1.4 (95% CI <1-4.5), respectively. Combined with SIW testing, a 3-log10 or 5-log10 seed treatment reduced the cases/year to 45 (95% CI 10-146) or <1 (95% CI <1-1.5), respectively. If the SIW coverage was less complete (i.e., less representative), a smaller risk reduction was predicted, e.g., a combined 3-log10 seed treatment and SIW testing with 20% coverage resulted in an estimated 92 (95% CI 22-298) cases/year. Analysis of alternative scenarios using different assumptions for key model inputs showed that the predicted relative risk reductions are robust. This risk assessment provides a comprehensive approach for evaluating the public health impact of various interventions in a sprout production system. PMID- 29341181 TI - Baboon syndrome caused by anti-haemorrhoidal ointment. PMID- 29341182 TI - Allergic contact dermatitis caused by Olanedine(r) (olanexidine gluconate), a new antiseptic. PMID- 29341183 TI - Systemic delayed hypersensitivity reaction to chlorambucil: a case report and literature review. PMID- 29341184 TI - First report of allergic contact dermatitis caused by sorbitan caprylate. PMID- 29341185 TI - Comparing patch test results of methylchloroisothiazolinone/methylisothiazolinone tested with both TRUE Test(r) and 100 ppm using investigator-loaded chambers. PMID- 29341186 TI - 'Chaturthy fingers' caused by Hibiscus rosasinensis. PMID- 29341187 TI - Erythema of the penis after use of a latex condom - latex allergy or something else? PMID- 29341188 TI - Allergic contact dermatitis caused by hydroxyacetophenone in a face cream. PMID- 29341189 TI - Is p-phenylenediamine a marker of sulfasalazine allergy? PMID- 29341190 TI - First case report of acute generalized exanthematous pustulosis (AGEP) caused by gadolinium confirmed by patch testing. PMID- 29341191 TI - Working and caring for a child with chronic illness: A review of current literature. AB - BACKGROUND: Advances in medical knowledge have contributed to the increase in the number of children living with some form of long-term chronic illness or condition. As a consequence of these advancements, treatments that are more accessible and easier to administer, usually within a child's home, have been developed. However, this may mean that parents take on greater treatment responsibility and require extra time and energy to meet these tasks, additional to other responsibilities. This review paper aims to summarize and critique existing literature on working parents of children with a chronic condition, by focusing on patterns of parent work, the challenges experienced, and the flow-on consequences to well-being. METHODS: Employing a narrative, meta-synthesis of the current literature, this review identified 3 key themes related to working parents of children with chronic illness. RESULTS: The paper first identifies that although employment is less common, these parents are not necessarily nonworking. Second, these parents experience numerous challenges including balancing work and family, time constraints, stress, and feelings of "doing it all." And third, the above challenges lead to additional impacts on parental quality of life. CONCLUSIONS: This review summarizes what is currently known about work patterns, challenges, and consequences in parents of children with chronic conditions. Employment is clearly impacted for these parents. Although workplace challenges have been extensively researched, other challenges (eg, personal and family) and impacts on their well-being have not. This review discusses the present standing of this research. It outlines the strengths and limitations of the current literature, makes recommendations for future research, and suggests theoretical and practical implications of the further findings. PMID- 29341192 TI - Population Pharmacokinetic Modeling of Guselkumab, a Human IgG1lambda Monoclonal Antibody Targeting IL-23, in Patients with Moderate to Severe Plaque Psoriasis. AB - Psoriasis is a common inflammatory skin disorder that requires chronic treatment and is associated with multiple comorbidities. Guselkumab, a human immunoglobulin G1-lambda monoclonal antibody, binds to interleukin-23 with high specificity and affinity and is effective in treating moderate to severe plaque psoriasis. As part of the guselkumab psoriasis clinical trial program, using a confirmatory approach, a population pharmacokinetics (PopPK) model was established using 13 014 PK samples from 1454 guselkumab-treated patients across 3 phase 2/3 trials. Observed serum guselkumab concentrations were adequately described by a 1 compartment linear PK model with first-order absorption and elimination. The final PK model was robust and stable, with apparent clearance (CL/F), apparent volume of distribution (V/F), and absorption rate constant (ka) estimates of 0.516 L/day, 13.5 L, and 1.11 day-1 , respectively. A model-derived elimination half-life of 18.1 days indicated achievement of steady-state serum guselkumab concentrations within 12-14 weeks. The primary covariate contributing to the observed PK variability was body weight, which accounted for only 28% (CL/F) and 32% (V/F) of the interindividual proportion of variance. Diabetes was identified to marginally reduce guselkumab exposure, owing to 12% higher CL/F in diabetic versus nondiabetic patients, but its contribution was not clinically relevant. None of the other covariates tested (eg, age, sex, ethnicity, immune response to guselkumab, or concomitant medications) had a clinically relevant effect on guselkumab exposure. PMID- 29341193 TI - Impact of Trans-Fats on Heat-Shock Protein Expression and the Gut Microbiota Profile of Mice. AB - Partially hydrogenated oils are known to cause metabolic stress and dyslipidemia. This paper explores a new dimension about the interaction between dietary trans fats and the defense heat-shock protein (HSP) system, inflammation, and the gut microbiota of mice consuming a hyperlipidic diet containing partially hydrogenated vegetable oil free of animal fat. Five diet groups were installed: control diet, 2 hyperlipidic-partially hydrogenated-oil diets, each containing either casein or whey-protein hydrolysate (WPH) as protein source, and 2 consuming hyperlipidic-unhydrogenated-oil diets containing either WPH or casein as a protein source. The partially hydrogenated oil inhibited c-Jun NH2 -terminal kinase phosphorylation in the casein diets, but without altering kappa-B kinase. Neither the lipid nor the protein had an influence on the proinflammatory toll like receptor 4 (TLR4) pathway, but the combination of the high-lipid content and WPH impaired glucose tolerance without altering insulin or glucose transporter-4 translocation. It was remarkable to observe that, contrary to the case of a common high-fat diet, the lard-free hyperlipidic diets were hardly able to invert the Bacteroidetes:Firmicutes phylum ratio. Our results suggest that, in the absence of lard, the intake of trans-fatty acids is less harmful than expected because it does not trigger TLR4-inflammation or pose great threat to the normal gut microbiota. WPH had the effect of promoting the expression of HSP90, HSP60, and HSP25, but did not prevent dysbiosis, when the diet contained the unhydrogenated oil. The partially hydrogenated oil also seemed to antagonize the ability of WPH to induce the expression of protective HSPs. PMID- 29341194 TI - Generation of red drum (Sciaenops ocellatus) hematology Reference Intervals with a focus on identified outliers. AB - BACKGROUND: The Deepwater Horizon (DWH) oil spill in 2010 released millions of barrels of crude oil into the northern Gulf of Mexico, exposing numerous species of animals to the toxic components of oil. A comprehensive assessment of morbidity and mortality caused by DWH oil exposure was undertaken by the DWH Natural Resource Damage Trustees to characterize ecosystem damages. OBJECTIVES: This study aimed to characterize normal hematologic RIs in red drum fish with blood cell descriptions, and to demonstrate the importance of identifying and removing outliers when generating RI. METHODS: Two years after the oil spill, 57 adult, red drum fish of mixed sexes were caught along the eastern Louisiana coastline. Eight different sites were chosen to catch the fish; 6 sites were contaminated with oil, and 2 sites were not contaminated at the time of the oil spill. Hematologic RIs were generated from heparinized whole blood samples of healthy red drum as determined by gross examination and histopathologic examination. Two methods were used to detect hematologic effects likely caused by oil contamination. RESULTS: Red drum PCVs (RI 42-62%) were higher than previously reported in cold water and bottom-dwelling fish species, while absolute WBC counts (RI 2.9-8.7 * 109 /L) were comparable to WBC counts previously reported in other fish species with heterophil and lymphocyte absolute concentrations frequently being equivalent. Anemic animals (PCV<42%) were only identified in oil contaminated sites. CONCLUSION: RIs in many wild fish species are lacking, and therefore, this study provides valuable baseline data on healthy red drum fish. The outliers assessed using ASVCP RI guidelines can provide valuable clinical information regarding individuals in population health assessments, which may be more sensitive for the detection of abnormalities than for population statistics comparing the mean. The importance of removing outliers and rerunning RI statistics is highlighted by this field example. PMID- 29341195 TI - Association between circulating 25-hydroxyvitamin D levels and psoriasis, and correlation with disease severity: a meta-analysis. AB - BACKGROUND: Psoriasis is a chronic, autoimmune, inflammatory skin disorder. 25 hydroxy vitamin D [25(OH)D] deficiency may contribute to the pathogenesis of psoriasis through reduction in antiproliferative, anti-inflammatory and antiangiogenic activities. AIM: To evaluate the relationship between circulating 25(OH)D levels and psoriasis, and to determine the correlation between serum/plasma 25(OH)D levels and psoriasis severity. METHODS: We performed a meta analysis to compare serum/plasma 25(OH)D levels between patients with psoriasis and healthy controls (HCs), and to determine the correlation coefficients between circulating 25(OH)D levels and psoriasis severity as assessed by Psoriasis Area and Severity Index (PASI). RESULTS: Ten articles with a total of 571 patients with psoriasis and 496 HCs were included. The 25(OH)D level was significantly lower in the psoriasis group than in the HC group. Subgroup analysis by sample size revealed a significantly lower level of 25(OH)D in the psoriasis group for large (N > 80) but not for small (N < 80) sample sizes. Stratification by adjustment for age and/or sex or sample type revealed a significantly lower 25(OH)D level in the psoriasis group after adjustment for serum but not after nonadjustment for plasma. Meta-analysis of the correlation coefficients revealed a small but statistically significant positive correlation between circulating 25(OH)D levels and PASI. CONCLUSIONS: This meta-analysis demonstrated that circulating 25(OH)D levels are lower in patients with psoriasis, and that a small but statistically significant negative correlation exists between 25(OH)D levels and psoriasis severity. PMID- 29341196 TI - Dynamic Economic Resilience and Economic Recovery from Disasters: A Quantitative Assessment. AB - This article analyzes the role of dynamic economic resilience in relation to recovery from disasters in general and illustrates its potential to reduce disaster losses in a case study of the Wenchuan earthquake of 2008. We first offer operational definitions of the concept linked to policies to promote increased levels and speed of investment in repair and reconstruction to implement this resilience. We then develop a dynamic computable general equilibrium (CGE) model that incorporates major features of investment and traces the time-path of the economy as it recovers with and without dynamic economic resilience. The results indicate that resilience strategies could have significantly reduced GDP losses from the Wenchuan earthquake by 47.4% during 2008-2011 by accelerating the pace of recovery and could have further reduced losses slightly by shortening the recovery by one year. The results can be generalized to conclude that shortening the recovery period is not nearly as effective as increasing reconstruction investment levels and steepening the time path of recovery. This is an important distinction that should be made in the typically vague and singular reference to increasing the speed of recovery in many definitions of dynamic resilience. PMID- 29341197 TI - How reliable are commercially available trackers in detecting daytime sleep. PMID- 29341198 TI - Aicardi-Goutieres syndrome: cold-induced acral blemish is not always cryoglobulinaemic vasculitis or chilblain lupus. PMID- 29341199 TI - Timing of gamma irradiation and blood donor sex influences in vitro characteristics of red blood cells. AB - BACKGROUND: There are few studies investigating the effect of irradiation on red blood cells (RBCs) during storage. This study analyzed changes in in vitro quality of RBCs irradiated at several points during storage with the aim of providing evidence to support current maximum pre- and postirradiation storage limits. STUDY DESIGN AND METHODS: Each of seven participating centers produced four pools of 7 standard RBC units (SAGM, AS-3, or PAGGSM), which were then split back into 7 units. All units in a pool were from sex-matched blood donors. Every week during 6 weeks of refrigerated storage, 1 unit was irradiated, while 1 unit was not irradiated (control). Units were tested weekly for biochemical variables, morphology, and mechanical fragility. RESULTS: The earlier during storage that units were irradiated, the higher the hemolysis and K+ at end of storage. Irrespective of the timing of irradiation, there was a rapid increase in extracellular K+ , followed by a more gradual increase in hemolysis. ATP levels decreased faster in irradiated units and were reduced below accepted values if irradiated early. Irradiated female RBCs had an absolute lower hemolysis and K+ level compared to male RBCs at all time points. CONCLUSIONS: The method of blood component manufacturing determined the absolute levels of hemolysis and potassium in irradiated and nonirradiated units, but did not influence the effect that timing of irradiation had on the in vitro quality characteristics. This study provides support for the current Council of Europe guidelines on the time limitations for the irradiation of RBCs. PMID- 29341200 TI - Human Agency in Disaster Planning: A Systems Approach. AB - Current approaches to risk management place insufficient emphasis on the system knowledge available to the assessor, particularly in respect of the dynamic behavior of the system under threat, the role of human agents (HAs), and the knowledge available to those agents. In this article, we address the second of these issues. We are concerned with a class of systems containing HAs playing a variety of roles as significant system elements-as decisionmakers, cognitive agents, or implementers-that is, human activity systems. Within this family of HAS, we focus on safety and mission-critical systems, referring to this subclass as critical human activity systems (CHASs). Identification of the role and contribution of these human elements to a system is a nontrivial problem whether in an engineering context, or, as is the case here, in a wider social and public context. Frequently, they are treated as standing apart from the system in design or policy terms. Regardless of the process of policy definition followed, analysis of the risk and threats to such a CHAS requires a holistic approach, since the effect of undesirable, uninformed, or erroneous actions on the part of the human elements is both potentially significant to the system output and inextricably bound together with the nonhuman elements of the system. We present a procedure for identifying the potential threats and risks emerging from the roles and activity of those HAs, using the 2014 flooding in southwestern England and the Thames Valley as a contemporary example. PMID- 29341201 TI - Diversity in cancer care: exploring social categories in encounters between healthcare professionals and breast cancer patients. AB - BACKGROUND: The burden of breast cancer is a key challenge for women's health globally. Rehabilitation needs and strategies for living with long-term consequences of breast cancer and its treatment cannot be isolated from the social contexts of patients, including relationships with relatives and healthcare professionals. AIM: This study explores how healthcare professionals' categorisations engage with breast cancer patients' social identities in encounters about rehabilitation before hospital discharge. METHOD: We conducted a multiperspective case-based qualitative study at a Danish department of breast surgery, including participant observations and interviews with twelve patients and eight nurses. Data were analysed thematically using theories of categorisation and clinical encounters. Ethical considerations: The Danish Data Protection Agency approved the study (journal number 2012-41-0701). RESULTS: Interactions in clinical encounters are shaped by categorisations of patients' social identities in terms of social resources and ethnicity, and by the resource constrained organisational context, with impact on the assessments of the patient's rehabilitation needs. CONCLUSIONS: There is a need for a greater focus on improving encounters between breast cancer patients and healthcare professionals to ensure that rehabilitation needs are accommodated for among diverse patient groups. PMID- 29341202 TI - Risk factors for stress urinary incontinence recurrence after single-incision sling. AB - AIMS: The aim of the study was to identify in a pure stress urinary incontinence (SUI) population risk factors for recurrence after single-incision slings (SIS). METHODS: This retrospective study analyzed women with complaints of SUI symptoms and urodynamically proven SUI. Exclusion criteria were recurrent SUI, overactive bladder syndrome/detrusor overactivity, preoperative postvoid residual >100 mL, reduced urethral mobility (<10 degrees at the Q-tip test), concomitant anterior prolapse >I stage and previous history of radical pelvic surgery. Objective cure rate was assessed with stress test. RESULTS: A total of 192 patients were analyzed. Objective cure rate was obtained in 86.5% of patients. According to univariate analysis, recurrences had higher prevalence of severe ICIQ-SF score (>=18 points), higher prevalence of reduced urethral mobility (Qtip <=30 degrees ), higher prevalence of low detrusor pressures during voiding phase (opening pressure <15 cmH2 O, pressure at maximum flow <20 cmH2 O, closing pressure <15 cmH2 O), and higher prevalence of postoperative complications According to multivariate analysis ICIQ-SF score >=18 points (P = 0.02; OR = 2.7) and detrusor pressure at maximum flow <20 cmH2 O (P < 0.01; OR = 3.6) resulted as independent risk factors for SUI recurrence (Table 3). A trend was found for urethral mobility <=30 degrees (P = 0.07; OR = 2.2). CONCLUSIONS: Our study identifies SUI severity expressed with ICIQ-SF scores and low detrusor pressure at maximum flow as independent risk factors for SUI recurrence after SIS implantation while only a trend was found for reduced urethral mobility. Therefore, preoperative assessment of symptoms and urodynamics evaluation may play a key role in improving preoperative counseling and tailoring surgical treatment. PMID- 29341203 TI - Food specific inhibitory control under negative mood in binge-eating disorder: Evidence from a multimethod approach. AB - OBJECTIVE: Inhibitory control has been discussed as a developmental and maintenance factor in binge-eating disorder (BED). The current study is the first aimed at investigating inhibitory control in a negative mood condition on a psychophysiological and behavioral level in BED with a combination of electroencephalography (EEG) and eye tracking (ET). METHOD: We conducted a combined EEG and ET study with overweight individuals with BED (BED+, n = 24, mean age = 31, mean BMI = 35 kg/m2 ) and without BED (BED-, n = 23, mean age = 28, mean BMI = 35 kg/m2 ) and a normal-weight (NWC, n = 26, mean age 28, mean BMI = 22 kg/m2 ) control group. We assessed self-report data regarding impulsivity and emotion regulation as well as the processing of food stimuli under negative mood in an antisaccade task. Main outcome variables comprise event-related potentials (ERP) regarding conflict processing (N2) and performance monitoring (error-related negativity [ERN/Ne]) assessed by EEG and inhibitory control (errors in the first and second saccade) assessed by ET. RESULTS: BED+ patients reported increased impulsivity and higher emotion regulation difficulties compared with the other groups. The eye tracking data revealed impaired inhibitory control in BED+ compared with both control groups. Further, we found preliminary evidence from EEG recordings that conflict processing might be less thorough in the BED+ sample as well as in the NWC sample. In the BED+ sample this might be connected to the inhibitory control deficits on behavioral level. While the BED- sample showed increased conflict processing latencies (N2 latencies), which might indicate a compensation mechanism, the BED+ sample did not show such a mechanism. Performance monitoring (ERN/Ne latencies and amplitudes) was not impaired in the BED+ sample compared with both control samples. DISCUSSION: Participants with BED reported higher impulsivity and lower emotion regulation capacities. The combined investigation of electrocortical processes and behavior contributes to an advanced understanding of behavioral and electrocortical processes underlying inhibitory control in BED. Inhibitory control and negative mood, probably amplified by emotion regulation deficits, should be addressed further in the investigation and treatment of BED. PMID- 29341205 TI - Promotion time cure rate model with nonparametric form of covariate effects. AB - Survival data with a cured portion are commonly seen in clinical trials. Motivated from a biological interpretation of cancer metastasis, promotion time cure model is a popular alternative to the mixture cure rate model for analyzing such data. The existing promotion cure models all assume a restrictive parametric form of covariate effects, which can be incorrectly specified especially at the exploratory stage. In this paper, we propose a nonparametric approach to modeling the covariate effects under the framework of promotion time cure model. The covariate effect function is estimated by smoothing splines via the optimization of a penalized profile likelihood. Point-wise interval estimates are also derived from the Bayesian interpretation of the penalized profile likelihood. Asymptotic convergence rates are established for the proposed estimates. Simulations show excellent performance of the proposed nonparametric method, which is then applied to a melanoma study. PMID- 29341204 TI - Gender, parental education, and experiences of bullying victimization by Australian adolescents with and without a disability. AB - BACKGROUND: This study sought to compare the prevalence of bullying victimization between adolescents with and without a disability and between adolescents with and without borderline intellectual functioning or intellectual disability (BIF/ID). We also sought to assess whether the relationships between either disability or BIF/ID and bullying victimization vary by gender and parental education. METHODS: The sample included 3,956 12- to 13-year-old adolescents who participated in Wave 5 of the Longitudinal Study of Australian Children. Three indicators of bullying were used: physical bullying victimization, social bullying victimization, and "any bullying victimization." We used Poisson regression to obtain the prevalence risk ratios (PRR) of bullying by disability status adjusting for potential confounders. RESULTS: In adjusted models, we found evidence that social bullying victimization was more prevalent among adolescents with a disability than those without a disability (PRR 1.29, 95% confidence interval [CI] 1.06-1.42) and between adolescents with BIF/ID than those without (PRR 1.24, 95% CI 1.07-1.44). Adolescents with BIF/ID were also more likely to experience "any bullying victimization"(PRR 1.10, 95% CI 1.00-1.22). Having a disability and living in a family with low parental education were associated with an elevated risk of social bullying victimization BIF/ID. CONCLUSIONS: Adolescents with disabilities and BIF/ID are at elevated risk of social bullying victimization. School-based antibullying initiatives should concentrate on enhancing the inclusion of adolescents with disabilities, with an emphasis on adolescents from disadvantaged backgrounds. PMID- 29341207 TI - Letters to the editor. PMID- 29341206 TI - Validation of a portable monitor for assessment of cerebrospinal fluid lactate in dogs. AB - BACKGROUND: Cerebrospinal fluid (CSF) lactate concentration may be a useful diagnostic and prognostic biomarker in dogs. Previous studies have used methods requiring relatively large sample volumes or prolonged storage prior to analysis. An effective method to immediately quantify lactate in smaller CSF volumes would be beneficial. OBJECTIVES: The main objectives were to evaluate the utility, accuracy, and precision of a portable meter for CSF lactate analysis in dogs and to develop a provisional RI using this device. A secondary objective was to assess the effects of different storage conditions on lactate concentrations. METHODS: The Lactate Plus device was used to analyze CSF samples. Device accuracy and precision were assessed by spiking CSF samples with concentrated sodium lactate solutions and by repeated analysis of samples, respectively. The provisional RI was generated using CSF samples from dogs with unremarkable laboratory data, central nervous system imaging, and conventional cytologic and chemical CSF analysis. Select samples were analyzed before and after storage at 4 degrees C, -20 degrees C, and -80 degrees C. RESULTS: Spiked samples showed lactate concentrations comparable to expected concentrations. The CV of immediate repeated measurements was 0-9.69%. Sample storage at 4 degrees C for 24 hours showed similar results but variation was higher with other storage conditions. The provisional RI was 1.02-2.49 mmol/L. CONCLUSIONS: The Lactate Plus has acceptable accuracy and precision for the quantification of CSF lactate in dogs. Lactate in CSF is ideally quantified immediately after collection as a subset of samples show variation with storage although most stored samples show acceptable variation. PMID- 29341208 TI - Letters to the editor. PMID- 29341209 TI - Identification of gaps in the current knowledge on pulmonary hypertension in extremely preterm infants: A systematic review and meta-analysis. AB - BACKGROUND: Pulmonary hypertension complicates the clinical course of extremely preterm infants and is associated with bronchopulmonary dysplasia (BPD). However, prevalence, risk factors, and outcome of pulmonary hypertension in these infants are insufficiently known. This systematic review and meta-analysis aims to provide an up-to-date overview of available data on prevalence, risk factors, and outcome of pulmonary hypertension and to identify current knowledge gaps. METHODS: Medline, EMBASE, and the Cochrane Library databases were searched in July 2017. Two authors reviewed titles/abstracts and full-texts. Eligible studies reported prevalence, patient characteristics or mortality of infants with/without pulmonary hypertension. Studies were excluded if they did not include extremely preterm infants. Only similar study samples (selected infants with BPD or infants both with/without BPD) were compared in the meta-analyses. RESULTS: Of 1829 unique articles identified, 25 were eligible for inclusion. Pulmonary hypertension was observed in infants with BPD (20%, 95% confidence interval [CI] 14, 25), but also in those without BPD (2%, 95% CI 0, 8). Infants with severe BPD were most at risk of pulmonary hypertension (risk ratio [RR] 2.7, 95% CI 1.7, 4.2). Infants with pulmonary hypertension were more at risk of mortality (RR 4.7, 95% CI 2.7, 8.3). CONCLUSIONS: Pulmonary hypertension occurs in particularly in infants with severe BPD, and increases risk of mortality. Due to selected study populations, heterogeneous pulmonary hypertension-definitions and poorly reported timing of pulmonary hypertension assessments, however, data available in current reports are insufficient to allow accurate assessment of true prevalence, risk factors, and time-related outcome. Prospective studies, with standardised methodology and follow-up are needed to determine these factors. PMID- 29341210 TI - Subchorionic Hematoma: Correlation of Grading Techniques With First-Trimester Pregnancy Outcome. AB - OBJECTIVES: To evaluate and compare grading systems of subchorionic hematoma (SCH) on first-trimester ultrasound examinations with live embryos to assess which best correlates with early pregnancy outcome and to assess the effect of gestational age at the time of diagnosis on outcome. METHODS: First-trimester live singleton pregnancies between 6 and 11 weeks' gestational age with SCH were identified by an institutional database search. First-trimester outcome was categorized as "live" or "demise" based on ultrasound or medical record documentation. Hematomas were categorized in 4 ways: (1) subjective (small, moderate, or large); (2) subjective size based on fraction comparison with gestational sac size; (3) subjective grading based on the estimated percentage of the gestational sac surrounded by hematoma; and (4) 3 orthogonal measurements of the hematoma. RESULTS: A total of 434 sonograms met study inclusion criteria. The overall rate of first-trimester pregnancy failure was 12.0%. The rate of demise was significantly higher for hematomas diagnosed at or before 7 weeks (19.6%) than for those after 8 weeks (3.6%; P < .001). The size of the hematoma estimated as a fraction of gestational sac size significantly correlated with first trimester pregnancy loss (P < .001). There was no statistical significance between first-trimester outcome and the other 2 subjective grading methods. Volume-based measurements provided spurious results because of the irregular shape of most hematomas. CONCLUSIONS: Subjective hematoma size based on the fraction of gestational sac size correlates best with first-trimester pregnancy outcome. The earlier in pregnancy an SCH is detected, the higher the rate of subsequent pregnancy failure. PMID- 29341213 TI - Detection of subclinical left ventricular dysfunction by tissue Doppler imaging in horses with aortic regurgitation. AB - BACKGROUND: Aortic regurgitation (AR) can have an important clinical impact and in some cases leads to left ventricular (LV) failure. Tissue Doppler imaging (TDI) is an echocardiographic technique that has been used in horses to detect LV dysfunction. OBJECTIVES: To examine whether TDI detects changes in radial myocardial wall motion in horses with AR compared with control horses. STUDY DESIGN: Case-control study. METHODS: Echocardiography was performed in 30 healthy Warmblood horses and 34 Warmblood horses with AR, subdivided in groups with mild, moderate or severe AR. TDI measurements were performed on six segments of the short-axis images of the LV myocardial wall. Myocardial wall motion was evaluated by measuring velocity and deformation during isovolumetric contraction, systole, early and late diastole. Timing of different events was also measured. RESULTS: In most segments, a significantly higher systolic myocardial velocity was found in horses with AR compared with controls. Horses with AR also had higher late diastolic velocity, although the difference was not significant in all segments. TDI measurement of timing intervals demonstrated less difference between groups. MAIN LIMITATIONS: There was a significant difference in age between the control group and horses with AR, which may confound the results. The assessment of AR severity was based on subjective criteria as there is no gold standard. CONCLUSIONS: TDI showed significant differences in radial systolic and late diastolic myocardial velocity in horses with AR. This could indicate an altered LV function in these horses, but further research is needed to investigate the prognostic value of these measurements. PMID- 29341212 TI - Differential role of PTEN in transforming growth factor beta (TGF-beta) effects on proliferation and migration in prostate cancer cells. AB - BACKGROUND: Transforming growth factor-beta (TGF-beta) acts as a tumor suppressor in normal epithelial cells but as a tumor promoter in advanced prostate cancer cells. PI3-kinase pathway mediates TGF-beta effects on prostate cancer cell migration and invasion. PTEN inhibits PI3-kinase pathway and is frequently mutated in prostate cancers. We investigated possible role(s) of PTEN in TGF-beta effects on proliferation and migration in prostate cancer cells. METHODS: Expression of PTEN mRNA and proteins were determined using RT-PCR and Western blotting in RWPE1 and DU145 cells. We also studied the role of PTEN in TGF-beta effects on cell proliferation and migration in DU145 cells after transient silencing of endogenous PTEN. Conversely, we determined the role of PTEN in cell proliferation and migration after over-expression of PTEN in PC3 cells which lack endogenous PTEN. RESULTS: TGF-beta1 and TGF-beta3 had no effect on PTEN mRNA levels but both isoforms increased PTEN protein levels in DU145 and RWPE1 cells indicating that PTEN may mediate TGF-beta effects on cell proliferation. Knockdown of PTEN in DU145 cells resulted in significant increase in cell proliferation which was not affected by TGF-beta isoforms. PTEN overexpression in PC3 cells inhibited cell proliferation. Knockdown of endogenous PTEN enhanced cell migration in DU145 cells, whereas PTEN overexpression reduced migration in PC3 cells and reduced phosphorylation of AKT in response to TGF-beta. CONCLUSION: We conclude that PTEN plays a role in inhibitory effects of TGF-beta on cell proliferation whereas its absence may enhance TGF-beta effects on activation of PI3-kinase pathway and cell migration. PMID- 29341215 TI - MicroRNA181c inhibits prostate cancer cell growth and invasion by targeting multiple ERK signaling pathway components. AB - BACKGROUND: The ERK signaling pathway is frequently deregulated in tumorigenesis, mostly by classical mechanisms such as gene mutation of its components (eg, RAS and RAF). However, whether and how multiple key components of ERK pathway are regulated by microRNAs are not clear. METHODS: We firstly predicted post transcriptional regulation of multiple key components of the ERK signaling pathway by miR181c through bioinformatics analysis, and then confirmed the post transcriptional regulation by dual luciferase reporter gene assays and Western blot analysis. The biological effects of miR181c on prostate cancer cell proliferation, apoptosis, migration, and invasion were measured by CCK-8 assay, flow cytometry, wound scratch assay, transwell cell migration, and invasion assays. RESULTS: miR181c post-transcriptionally regulated multiple key members of the ERK signaling pathway, including extracellular signal-regulated kinase 2 (ERK2), ribosomal S6 kinase 2 (RSK2), serum response factor (SRF), and FBJ murine osteosarcoma viral oncogene homolog (c-Fos). Ectopic expression of miR181c mimics effectively suppressed prostate cancer cell proliferation, migration, and invasion, but promoted cell apoptosis. Furthermore, miR181c treatment combined with the multi-kinase inhibitor sorafenib significantly enhanced these anti-tumor effects. CONCLUSIONS: Downregulation of miR181c results in deregulated ERK signaling and promotes prostate cancer cell growth and metastasis. PMID- 29341214 TI - Cue reactivity, habituation, and eating in the absence of hunger in children with loss of control eating and attention-deficit/hyperactivity disorder. AB - OBJECTIVE: Childhood loss of control (LOC) eating and attention deficit/hyperactivity disorder (ADHD) are highly comorbid conditions and present with disordered eating behaviors, such as overeating. This study sought to delineate shared and specific abnormalities in physiological, cognitive motivational, and behavioral components of food-specific impulsivity in children with LOC eating and ADHD. Specifically, children's reactivity and habituation to food and eating in the absence of hunger were examined. METHODS: Within this community-based study, four groups of 8-13-year-old children with LOC eating (n = 24), ADHD (n = 32), comorbid LOC eating/ADHD (n = 9), and matched controls (n = 34) received a standard laboratory test meal to establish satiety and were then exposed to their favorite snack food in a cue exposure/reactivity trial, while salivation and desire to eat were repeatedly assessed. Subsequently, they were offered a variety of snack foods ad libitum. RESULTS: Children with LOC eating, ADHD, and LOC/ADHD did not differ from controls in salivary reactivity and habituation to food cues. Children with LOC eating and ADHD showed greater cue reactivity of the desire to eat than controls, but groups did not differ in its longer-term increments. At free access, only children with LOC/ADHD consumed significantly more energy than controls. Longer-term increments of desire to eat predicted greater energy intake beyond LOC/ADHD group status. DISCUSSION: Desire to eat among children with comorbid LOC eating and ADHD was associated with overeating in the absence of hunger, which may contribute to excess weight gain. Delineation of the specific features of childhood LOC eating versus ADHD warrants further study. PMID- 29341216 TI - Primary scarring alopecia: A retrospective study of 89 patients in Taiwan. AB - Primary scarring alopecia (PSA) is caused by irreversible damage to the hair epithelial stem cells that reside in hair follicles. There is limited published work regarding PSA amongst the Asian population. The aim of this study was to evaluate the clinical features and to characterize the subtypes of PSA in southern Taiwan. In this retrospective case series, we reviewed 89 patients with pathology-confirmed PSA. The data was collected from National Cheng Kung University Hospital between 1988 through 2016. The clinical and histological data were reviewed, and the patients were characterized into different subtypes of PSA based on the clinical features and histological findings. We noted seven different subtypes of PSA. The most common type was dissecting cellulitis (DC) (30.3%), followed by lichen planopilaris (LPP) (23.5%), central centrifugal cicatricial alopecia (CCCA) (12.4%) and acne keloidalis nuchae (AKN) (12.4%). The other subtypes include folliculitis decalvans (FD), discoid lupus erythematosus (DLE) and pseudopelade of Brocq (PPB). Interestingly, FD, DC and AKN were more common in males, while CCCA, LPP, DLE and PPB had a female predominance. The mean age of patients with DLE, DC and AKN were younger, while patients with CCCA, LPP, PPB and FD tend to be older. The pattern of hair loss was more likely to be unifocal-ragged border in CCCA and DLE, multifocal-interconnected in LPP and FD, and multifocal-separated in DC. The pathogenesis of PSA may be influenced by sex, age and genetic background. It is important to identify the hair loss pattern to differentiate the subtypes of PSA. PMID- 29341218 TI - Metastatic Crohn's disease in childhood: A case report. PMID- 29341217 TI - Acetoacetate and ethyl acetoacetate as novel inhibitors of bacterial biofilm. AB - : Acetoacetate (AAA) was identified as a biofilm inhibitor in a previous study, where the effect of 190 carbon and nitrogen sources on biofilm amounts by Escherichia coli O157:H7 was determined. With this study, we tested the effect of AAA on growth and biofilm amounts of Cronobacter sakazakii, Serratia marcescens and Yersinia enterocolitica. AAA reduced growth and biofilm amounts of the three pathogens, albeit at rather high concentrations of 10 to 35 mg ml-1 . Acetoacetate at a concentration of 5 mg ml-1 reduced Y. enterocolitica mRNA transcripts of the flagellar master regulator operon flhD, the invasion gene inv, and the adhesion gene yadA. Transcription of the regulator of plasmid-encoded virulence genes virF, the plasmid-encoded virulence gene yopQ, and ymoA were largely unaffected by AAA. Importantly, AAA did not cause an increase in transcription of any of the tested virulence genes. As a more cost efficient homologue of AAA, the effect of ethyl acetoacetate (EAA) was tested. EAA reduced growth, biofilm amounts and live bacterial cell counts up to 3 logs. IC50 values ranged from 0.31 mg ml-1 to 5.6 mg ml-1 . In summary, both AAA and EAA inhibit biofilm, but EAA appears to be more effective. SIGNIFICANCE AND IMPACT OF THE STUDY: Bacterial biofilms are communities of bacteria that form on surfaces and are extremely difficult to remove by conventional physical or chemical techniques, antibiotics or the human immune system. Despite advanced technologies, biofilm still contributes to 60 to 80% of human bacterial infections (NIH and CDC) and cause problems in many natural, environmental, bioindustrial or food processing settings. The discovery of novel substances that inhibit biofilm without increasing the virulence of the bacteria opens doors for countless applications where a reduction of biofilm is desired. PMID- 29341219 TI - Current knowledge of nocardiosis in teleost fish. AB - Nocardia sp. is the causative agent of nocardiosis, a lethal granulomatous disease of the skin, muscle, and various inner tissues affecting various teleost and shellfish. Four species of Nocardia have been isolated from diseased fish and shellfish, namely Nocardia asteroides, Nocardia seriolae, Nocardia salmonicida and Nocardia crassostreae. Therefore, in fish aquaculture, nocardiosis has caused severe economic losses, especially in the Asian region. Considerable research has been performed, since the first report of identified Nocardia sp. in fish, to characterize Nocardia sp. and identify rapid detection techniques, immune response against infection and prophylactic approaches. In this review, the current state of knowledge about nocardiosis in fish has been presented, including the pathogenesis, diagnosis, host immune response and vaccine development. PMID- 29341220 TI - Prevalence of Rhodococcus equi from the nasal cavity of 1010 apparently healthy horses. AB - BACKGROUND: Rhodococcus equi is an important cause of foal pneumonia. While its isolation from different sources has been widely evaluated, there is a need to better understand the R. equi epidemiology from samples of the nasal cavity of healthy horses. OBJECTIVES: To determine the prevalence of R. equi from the nasal cavity of healthy horses, along with its virulence profile, antimicrobial susceptibility and environmental variables associated. STUDY DESIGN: Cross sectional study. METHODS: Swabs from the nasal cavity of 1010 apparently healthy horses from 341 farms were submitted for bacteriological analyses. The identity and virulence profile of the R. equi isolates were assessed by multiplex PCR; antimicrobial susceptibility was determined by the disk-diffusion method. The occurrence of R. equi was calculated at the level of both animal and farm. The association of seven specific environmental factors with R. equi isolation was assessed using logistic regression and by a spatial scan statistical method to determine the presence of local clusters. RESULTS: Antimicrobial-sensitive R. equi was isolated from 10 (1%) of 1010 horses ranging between 3 and 29 years old. Ten farms (3%) had at least one positive horse. Only one R. equi isolate (10%) was classified as virulent. Red-Yellow Argisol (PVA/PV) soils were significantly associated with R. equi isolation (odds ratio (OR) 8.02; CI95% , 1.98-32.50, P = 0.01), and areas with well-drained soil were less likely to be test positive (OR 0.85; CI95% , 0.76-0.96, P = 0.03). MAIN LIMITATIONS: The use of culture-based method instead of PCR-based assay and the lack of soil sampling. CONCLUSIONS: Antimicrobial-sensitive R. equi may be considered a minor part of the normal bacterial flora in the nasal cavity of healthy and immunologically functional horses breeding on pasture. Further studies are warranted to determine if soils rich in iron and well-drained are, in fact, associated with the occurrence of R. equi. PMID- 29341221 TI - Pediatric penile porokeratosis: A case report. AB - We present what we believe to be the second case of pediatric penile porokeratosis and the youngest case reported. A 6-year-old boy presented with a pruritic, verrucous growth at the urethral meatus that recurred after two meatotomies. The diagnosis of porokeratosis was confirmed by biopsy. Porokeratosis should be added to the differential diagnosis of chronic hyperkeratotic penile lesions in children. PMID- 29341223 TI - Disulfide bond based polymeric drug carriers for cancer chemotherapy and relevant redox environments in mammals. AB - Increasing numbers of disulfide linkage-employing polymeric drug carriers that utilize the reversible peculiarity of this unique covalent bond have been reported. The reduction-sensitive disulfide bond is usually employed as a linkage between hydrophilic and hydrophobic polymers, polymers and drugs, or as cross linkers in polymeric drug carriers. These polymeric drug carriers are designed to exploit the significant redox potential difference between the reducing intracellular environments and relatively oxidizing extracellular spaces. In addition, these drug carriers can release a considerable amount of anticancer drug in response to the reducing environment when they reach tumor tissues, effectively improving antitumor efficacy. This review focuses on various disulfide linkage-employing polymeric drug carriers. Important redox thiol pools, including GSH/GSSG, Cys/CySS, and Trx1, as well as redox environments in mammals, will be introduced. PMID- 29341222 TI - 89 Zr-ImmunoPET companion diagnostics and their impact in clinical drug development. AB - Therapeutic monoclonal antibodies have been used in cancer treatment for 30 years, with around 24 mAb and mAb:drug conjugates approved by the FDA to date. Despite their specificity, efficacy has remained limited, which, in part, derails nascent initiatives towards precision medicine. An image-guided approach to reinforce treatment decisions using immune positron emission tomography (immunoPET) companion diagnostic is warranted. This review provides a general overview of current translational research using Zr-89 immunoPET and opportunities for utilizing and harnessing this tool to its full potential. Patient case studies are cited to illustrate immunoPET probes as tools for profiling molecular signatures. Discussions on its utility in reinforcing clinical decisions as it relates to histopathological tumor assessment and standard diagnostic methods, and its potential as predictive biomarkers, are presented. We finally conclude with an overview of practical considerations to its utility in the clinic. PMID- 29341224 TI - Comparative RNA-Seq transcriptome analysis on silica induced pulmonary inflammation and fibrosis in mice silicosis model. AB - Silicosis is a long-established public health issue in developing countries due to increasingly serious air pollution and poorly implemented occupational safety regulation. Inhalation of silica triggers cytotoxicity, oxidative stress, pulmonary inflammation and eventually silicosis. Current understanding in the pathogenesis and mechanism of silicosis is limited, and no effective cure is clinically available once silicosis is developed. A number of studies were conducted to investigate silica-induced alternate gene expressions in pulmonary cells. However, transcriptome analysis in a silicosis animal model is needed. This study was performed to evaluate the transcriptional alternations in silicotic mice using comparative RNA-Seq. A silicosis mice model was established by intratracheal instillation of silica suspensions, and validated by histological examinations. High-throughput sequencing and differential gene expression analysis revealed 749 upregulated genes and 70 downregulated genes in the silicosis model. Genes related to immune cell interactions, immune cell responses and inflammation were significantly enriched. Cytokine-cytokine receptor interaction and downstream JAK-STAT signaling pathways were the most significantly enriched KEGG pathways. Reverse transcription-polymerase chain reaction analysis and immunohistochemistry were performed to validate further the differential expression patterns of representative genes. The reported results in this study provide the basis for elucidating the molecular mechanisms for silica induced pulmonary inflammation and fibrosis, and support the prevention and treatment of silicosis. PMID- 29341225 TI - Past and present mercury accumulation in the Lake Baikal seal: Temporal trends, effects of life history, and toxicological implications. AB - Despite global efforts to reduce anthropogenic mercury (Hg) emissions, the timescale and degree to which Hg concentrations in the environment and biota respond to decreased emissions remain challenging to assess or predict. In the present study we characterize long-term trends and life-history patterns in Hg accumulation and toxicological implications of Hg contamination for a freshwater seal from one of the world's largest lakes (Lake Baikal, Siberia, Russia) using contemporary tissues and archival teeth. Stable isotope analysis and Hg analyses of soft tissues (muscle, liver, kidney, blood, brain, heart) and teeth from 22 contemporary seals revealed rapid changes in diet and Hg accumulation in the first year of life with a stable diet and increase in tissue Hg throughout the rest of life. Although maternal transfer of Hg was an important source of Hg to seal pups, reproduction and lactation by female seals did not appear to result in sex-related differences in Hg concentrations or age-related accumulation in adult seals. Based on Hg analysis of archival teeth (n = 114) and reconstructed values for soft tissues, we also assessed temporal trends in seal Hg between the years 1960 and 2013. Seal Hg concentrations in hard (teeth) and soft (e.g., muscle, liver) tissues were highest in the 1960s and 1970s, followed by a decrease. The decline in seal Hg concentrations in recent decades was most likely driven by a reduction in Hg inputs to the lake, suggesting that global and regional efforts to reduce Hg emissions have been successful at reducing ecosystem and human health risks posed by Hg in Lake Baikal. Environ Toxicol Chem 2018;37:1476-1486. (c) 2018 SETAC. PMID- 29341226 TI - Molecular details of spontaneous insertion and interaction of HCV non-structure 3 protease protein domain with PIP2-containing membrane. AB - Hepatitis C virus (HCV), known as the leading cause of liver cirrhosis, viral hepatitis, and hepatocellular carcinoma, has been affecting more than 150 million people globally. The HCV non-structure 3 (NS3) protease protein domain plays a key role in HCV replication and pathogenesis; and is currently a primary target for HCV antiviral therapy. Through unbiased molecular dynamics simulations which take advantage of the novel highly mobile membrane mimetic model, we constructed the membrane-bound state of the protein domain at the atomic level. Our results indicated that protease domain of HCV NS3 protein can spontaneously bind and penetrate to an endoplasmic reticulum complex membrane containing phosphatidylinositol 4,5-bisphosphate (PIP2). An amphipathic helix alpha0 and loop S1 show their anchoring role to keep the protein on the membrane surface. Proper orientation of the protein domain at membrane surface was identified through measuring tilt angles of two specific vectors, wherein residue R161 plays a crucial role in its final orientation. Remarkably, PIP2 molecules were observed to bind to three main sites of the protease domain via specific electrostatic contacts and hydrogen bonds. PIP2-interaction determines the protein orientation at the membrane while both hydrophobic interplay and PIP2-interaction can stabilize the NS3 - membrane complex. Simulated results provide us with a detailed characterization of insertion, orientation and PIP2-interaction of NS3 protease domain at membrane environment, thus enhancing our understanding of structural functions and mechanism for the association of HCV non-structure 3 protein with respect to ER membranes. PMID- 29341228 TI - Bronchoalveolar lavage fluid neutrophilia is associated with the severity of pulmonary lesions during equine asthma exacerbations. AB - BACKGROUND: The severe form of equine asthma is associated with pathological changes of the peripheral airways and pulmonary parenchyma that are only partly described. Also, the relationship between these structural alterations and the percentage of neutrophils found within the airway lumen, assessed by bronchoalveolar lavage fluid (BALF) cytology, remains ill-defined. OBJECTIVE: To examine the histological lesions associated with equine asthma during disease exacerbation and remission, and their relationship with lung function and BALF neutrophilia. STUDY DESIGN: Observational retrospective study. METHODS: Peripheral lung tissues, BALF cytology and lung function data from 61 horses (22 controls, 24 asthma exacerbations and 15 asthma remission) were obtained from an equine pulmonary tissue bank. Two pathologists semi-quantitatively assessed histological features, including airway wall inflammation, interstitial fibrosis, mucus cell hyperplasia, mucostasis, peribronchiolar metaplasia, presence of granuloma and the overall severity of these lesions. RESULTS: Mucostasis, mucus cell hyperplasia, peribronchiolar metaplasia and interstitial fibrosis were associated with disease exacerbation (P<=0.05), and these changes were all attenuated during remission. Airway wall inflammation was greater in horses with asthma in exacerbation compared with horses with asthma in remission and control horses (P<=0.05). Acute (neutrophilic) airway wall inflammation was more frequently detected in asthmatic cases compared with control horses (P<0.0001) and was associated with BALF neutrophilia >5% in control horses (P = 0.002). The degree of bronchiolar inflammation was higher in asthmatic horses in remission stabled and treated pharmacologically compared with those kept on pasture (P = 0.04). MAIN LIMITATIONS: Samples obtained from a convenient cohort of horses were studied. CONCLUSIONS: Severely asthmatic horses present parenchymal and peribronchial/peribronchiolar lesions possibly contributing to the obstructive nature of the disease. PMID- 29341229 TI - Assessing and mitigating simulated population-level effects of 3 herbicides to a threatened plant: Application of a species-specific population model of Boltonia decurrens. AB - Extrapolating from organism-level endpoints, as generated from standard pesticide toxicity tests, to populations is an important step in threatened and endangered species risk assessments. We apply a population model for a threatened herbaceous plant species, Boltonia decurrens, to estimate the potential population-level impacts of 3 herbicides. We combine conservative exposure scenarios with dose response relationships for growth and survival of standard test species and apply those in the species-specific model. Exposure profiles applied in the B. decurrens model were estimated using exposure modeling approaches. Spray buffer zones were simulated by using corresponding exposure profiles, and their effectiveness at mitigating simulated effects on the plant populations was assessed with the model. From simulated exposure effects scenarios that affect plant populations, the present results suggest that B. decurrens populations may be more sensitive to exposures from herbicide spray drift affecting vegetative stages than from runoff affecting early seedling survival and growth. Spray application buffer zones were shown to be effective at reducing effects on simulated populations. Our case study demonstrates how species-specific population models can be applied in pesticide risk assessment to bring organism level endpoints, exposure assumptions, and species characteristics together in an ecologically relevant context. Environ Toxicol Chem 2018;37:1545-1555. (c) 2018 SETAC. PMID- 29341227 TI - PET radiometals for antibody labeling. AB - Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies. Non invasive molecular imaging techniques, such as Positron Emission Tomography (PET), using radiolabeled mAbs provide useful information on the whole-body distribution of the biomolecules, which may enable patient stratification, diagnosis, selection of targeted therapies, evaluation of treatment response, and prediction of dose limiting tissue and adverse effects. In addition, when mAbs are labeled with therapeutic radionuclides, the combination of immunological and radiobiological cytotoxicity may result in enhanced treatment efficacy. The pharmacokinetic profile of antibodies demands the use of long half-life isotopes for longitudinal scrutiny of mAb biodistribution and precludes the use of well stablished short half-life isotopes. Herein, we review the most promising PET radiometals with chemical and physical characteristics that make the appealing for mAb labeling, highlighting those with theranostic radioisotopes. PMID- 29341230 TI - Successful treatment of rituximab- and steroid-resistant nephrotic syndrome with leukocytapheresis. AB - Although rituximab (RTX) is a promising therapeutic agent for treating steroid resistant nephrotic syndrome (SRNS) resistant to various immunosuppressive agents, some patients have shown resistance to RTX. We report the case of a patient with RTX-resistant nephrotic syndrome and SRNS who was successfully treated with leukocytapheresis (LCAP). After LCAP, there was a significant reduction in proteinuria and in the total number of lymphocytes, T cells, and HLA DR+- activated T cells. Moreover, the patient became sensitive to steroids and RTX. LCAP reduced circulating immune cells including activated T cells and could be effective in treating rituximab-resistant nephrotic syndrome and SRNS and in achieving remission of proteinuria. PMID- 29341231 TI - Dermoscopic features of Bednar tumor: Report of a case. PMID- 29341232 TI - Histological features and outcome of inverted type-A melanocytic nevi. AB - The presence of enlarged epithelioid/spindled nests located deep in the reticular dermis of a biphasic melanocytic neoplasm can mimic melanoma arising in a pre existing nevus, causing over-interpretation of malignancy. We aimed to define the clinicopathologic significance of epithelioid/spindled nests in melanocytic nevi. Retrospectively using clinical and histologic information, we characterized 121 patients with a single lesion showing epithelioid/spindled melanocytes in the reticular dermis or subcutaneous fat, surrounded by melanophages, sometimes blending in with the adnexa. The majority of nevi occurred in women in the ages of 10 to 39 years, where the most frequent presentation was a changing mole. While 78% of the lesions displayed an anatomic (Clark's) level of IV-V, there was no ulceration, significant regression or inflammation. Up to 2 mitoses were found in only 12% of the cases, not correlating with the severity of cytological atypia. No recurrence or metastasis occurred during 45.5 months (mean) of clinical follow up in 26 patients. Notwithstanding the deep dermal extension, these findings suggest a benign histopathology and clinical outcome. Having compared the overlapping histopathology and clinical features between deep penetrating/clonal nevus and combined nevus, we posit that "inverted type-A nevus" might be considered a variant of the two. PMID- 29341233 TI - Fate, uptake, and distribution of nanoencapsulated pesticides in soil-earthworm systems and implications for environmental risk assessment. AB - Nanopesticides are novel plant protection products offering numerous benefits. Because nanoparticles behave differently from dissolved chemicals, the environmental risks of these materials could differ from conventional pesticides. We used soil-earthworm systems to compare the fate and uptake of analytical-grade bifenthrin to that of bifenthrin in traditional and nanoencapsulated formulations. Apparent sorption coefficients for bifenthrin were up to 3.8 times lower in the nano treatments than in the non-nano treatments, whereas dissipation half-lives of the nano treatments were up to 2 times longer. Earthworms in the nano treatments accumulated approximately 50% more bifenthrin than those in the non-nano treatments. In the non-nano treatments, most of the accumulated material was found in the earthworm tissue, whereas in the nano treatments, the majority resided in the gut. Evaluation of toxicokinetic modeling approaches showed that models incorporating the release rate of bifenthrin from the nanocapsule and distribution within the earthworm provided the best estimations of uptake from the nano-formulations. Overall, our findings indicate that the risks of nanopesticides may be different from those of conventional formulations. The modeling presented provides a starting point for assessing risks of these materials but needs to be further developed to better consider the behavior of the nanoencapsulated pesticide within the gut system. Environ Toxicol Chem 2018;37:1420-1429. (c) 2018 SETAC. PMID- 29341234 TI - Microangiopathy and acute kidney injury in paroxysmal cold hemoglobinuria: A challenge for management. PMID- 29341235 TI - Concomitant cutaneous squamous cell carcinoma and chronic lymphocytic leukemia in a patient: The utility of 18 F-FDG PET/CT in differentiation of nodal metastasis. PMID- 29341236 TI - Induced Earthquakes from Long-Term Gas Extraction in Groningen, the Netherlands: Statistical Analysis and Prognosis for Acceptable-Risk Regulation. AB - Recently, growing earthquake activity in the northeastern Netherlands has aroused considerable concern among the 600,000 provincial inhabitants. There, at 3 km deep, the rich Groningen gas field extends over 900 km2 and still contains about 600 of the original 2,800 billion cubic meters (bcm). Particularly after 2001, earthquakes have increased in number, magnitude (M, on the logarithmic Richter scale), and damage to numerous buildings. The man-made nature of extraction induced earthquakes challenges static notions of risk, complicates formal risk assessment, and questions familiar conceptions of acceptable risk. Here, a 26 year set of 294 earthquakes with M >= 1.5 is statistically analyzed in relation to increasing cumulative gas extraction since 1963. Extrapolations from a fast rising trend over 2001-2013 indicate that-under "business as usual"-around 2021 some 35 earthquakes with M >= 1.5 might occur annually, including four with M >= 2.5 (ten-fold stronger), and one with M >= 3.5 every 2.5 years. Given this uneasy prospect, annual gas extraction has been reduced from 54 bcm in 2013 to 24 bcm in 2017. This has significantly reduced earthquake activity, so far. However, when extraction is stabilized at 24 bcm per year for 2017-2021 (or 21.6 bcm, as judicially established in Nov. 2017), the annual number of earthquakes would gradually increase again, with an expected all-time maximum M ~ 4.5. Further safety management may best follow distinct stages of seismic risk generation, with moderation of gas extraction and massive (but late and slow) building reinforcement as outstanding strategies. Officially, "acceptable risk" is mainly approached by quantification of risk (e.g., of fatal building collapse) for testing against national safety standards, but actual (local) risk estimation remains problematic. Additionally important are societal cost-benefit analysis, equity considerations, and precautionary restraint. Socially and psychologically, deliberate attempts are made to improve risk communication, reduce public anxiety, and restore people's confidence in responsible experts and policymakers. PMID- 29341238 TI - Temporal trends in a biomagnifying contaminant: Application of amino acid compound-specific stable nitrogen isotope analysis to the interpretation of bird mercury levels. AB - Temporal trends in levels of biomagnifying contaminants, such as mercury (Hg), in top predators can provide insights into changes in contaminant bioavailability through time. However, interpreting contaminant temporal trends in predators can be confounded by temporal changes in their diets, which, in turn, could affect organism trophic position and exposure to biomagnifying contaminants. To address this issue, bulk stable nitrogen isotope analysis, that is, analysis of whole tissue, is widely incorporated into contaminant-monitoring programs for the estimation of organism trophic position. In the present study, we investigated lake-specific temporal trends in Hg levels in herring gull (Larus argentatus smithsonianus) eggs from Lakes Huron and Erie, 2 Laurentian Great Lakes. Levels of Hg in Lake Huron eggs declined, whereas Lake Erie eggs showed no change. Stable nitrogen isotope analysis of bulk material could not explain these interlake differences in Hg temporal trends. However, application of amino acid compound-specific stable nitrogen isotope analysis, in conjunction with other dietary tracers (i.e., fatty acids), provided insights into the factors regulating interlake differences in Hg temporal trends. Adjusting Hg levels in predators to account for temporal changes in their diets can have a significant impact on the interpretation of temporal trend contaminants data. In this case, it reconciled the apparently different Hg temporal trends observed in gull eggs from Lakes Huron and Erie. Environ Toxicol Chem 2018;37:1458-1465. (c) 2018 SETAC. PMID- 29341237 TI - The impact of diuretic use and ABCG2 genotype on the predictive performance of a published allopurinol dosing tool. AB - AIM: This research aims to evaluate the predictive performance of a published allopurinol dosing tool. METHODS: Allopurinol dose predictions were compared to the actual dose required to achieve serum urate (SU) <0.36 mmol l-1 using mean prediction error. The influence of patient factors on dose predictions was explored using multilinear regression. RESULTS: Allopurinol doses were overpredicted by the dosing tool; however, this was minimal in patients without diuretic therapy (MPE 63 mg day-1 , 95% CI 40-87) compared to those receiving diuretics (MPE 295 mg day-1 , 95% CI 260-330, P < 0.0001). ABCG2 genotype (rs2231142, G>T) had an important impact on the dose predictions (MPE 201, 107, 15 mg day-1 for GG, GT and TT, respectively, P < 0.0001). Diuretic use and ABCG2 genotype explained 53% of the variability in prediction error (R2 = 0.53, P = 0.0004). CONCLUSIONS: The dosing tool produced acceptable maintenance dose predictions for patients not taking diuretics. Inclusion of ABCG2 genotype and a revised adjustment for diuretics would further improve the performance of the dosing tool. PMID- 29341239 TI - Interaction between healthcare professionals and parents is a key determinant of parental distress during childhood hospitalisation for respiratory syncytial virus infection (European RSV Outcomes Study [EROS]). AB - AIM: We characterised the distress that parents experienced when their child was hospitalised for respiratory syncytial virus (RSV) infection. METHODS: This survey-based, observational study was conducted during 2014-2015. Meetings were held in Spain and Italy, with 24 parents of RSV hospitalised infants and 11 healthcare professionals experienced in RSV, which identified 110 factors related to parental distress. The resulting questionnaire was completed by another 105 Spanish and Italian parents and 56 healthcare professionals, to assess the impact these factors had on parental distress, using a scale from 0 to 10 (very unimportant to very important). RESULTS: The five most important factors for parents were: healthcare professionals' awareness of the latest developments, readmission, reinfections, painful procedures and positive experiences with healthcare professionals. Healthcare professionals associated only medical factors with a meaningful impact on parents. Half of the six medical factors were given similar importance by both groups and the overall scoring for the 110 factors was comparable, with a correlation coefficient of 0.80. A primary concern on discharge was ongoing support. CONCLUSION: The relationship between parents and healthcare professionals was a significant factor in determining parental distress. Healthcare professionals appeared to have a good understanding of the overall impact on parents, particularly the key medical factors. PMID- 29341240 TI - A case report and literature review of autism and attention deficit hyperactivity disorder in paediatric chronic pain. AB - : Psychiatric disorders are common in paediatric patients with chronic pain, but the overall prevalence of comorbid neurodevelopmental disorders is unclear. We report on a case of severe chronic pain in a child with undiagnosed comorbid autism spectrum disorder and attention deficit hyperactivity disorder, where significant improvements in pain and function occurred following methylphenidate medication and parental behavioural training. CONCLUSION: The inclusion of behavioural assessment and screening for neurodevelopmental comorbidity may be essential in addressing complex paediatric chronic pain. PMID- 29341241 TI - Pan-pseudothrombocytopenia: An unusual case of platelet clumping. PMID- 29341242 TI - Acute generalized exanthematous pustulosis induced by a digestive enzyme drug, Festal(r). PMID- 29341243 TI - Subcutaneous basal cell carcinoma. PMID- 29341244 TI - Re: Challenges in research on pregnancy termination and ethical considerations. PMID- 29341245 TI - Pharmacokinetic/pharmacodynamic drug-drug interactions of avatrombopag when coadministered with dual or selective CYP2C9 and CYP3A interacting drugs. AB - AIMS: Avatrombopag, a thrombopoietin receptor agonist, is a substrate of cytochrome P450 (CYP) 2C9 and CYP3A. We assessed three drug-drug interactions of avatrombopag as a victim with dual or selective CYP2C9/3A inhibitors and inducers. METHODS: This was a three-part, open-label study. Forty-eight healthy subjects received single 20 mg doses of avatrombopag alone or with one of 3 CYP2C9/3A inhibitors or inducers: fluconazole 400 mg once daily for 16 days, itraconazole 200 mg twice daily on Day 1 and 200 mg once daily on Days 2-16, or rifampicin 600 mg once daily for 16 days. Pharmacokinetics, pharmacodynamics (platelet count) and safety of avatrombopag were evaluated. RESULTS: Coadministration of a single 20-mg dose of avatrombopag with fluconazole at steady-state resulted in 2.16-fold increase of AUC of avatrombopag, prolonged terminal elimination phase half-life (from 19.7 h to 39.9 h) and led to a clinically significant increase in maximum platelet count (1.66-fold). Itraconazole had a mild increase on both avatrombopag pharmacokinetics and pharmacodynamics compared to fluconazole. Coadministration of rifampicin caused a 0.5-fold decrease in AUC and shortened terminal elimination phase half-life (from 20.3 h to 9.84 h), but has no impact on maximum platelet count. Coadministration with interacting drugs was found to be generally safe and well-tolerated. CONCLUSIONS: The results from coadministration of fluconazole or itraconazole suggest that CYP2C9 plays a more predominant role in metabolic clearance of avatrombopag than CYP3A. To achieve comparable platelet count increases when avatrombopag is coadministered with CYP3A and CYP2C9 inhibitors, an adjustment in the dose or duration of treatment is recommended, while coadministration with strong inducers is not currently recommended. PMID- 29341246 TI - Risk factors for disordered weight control behaviors among Korean adolescents: Multilevel analysis of the Korea Youth Risk Behavior Survey. AB - OBJECTIVE: To investigate the prevalence and risk factors for disordered weight control behaviors (DWCB) in South Korean adolescents at multiple levels, including individual, family, school, and geographic area. METHOD: We drew participants from the 11th Korea Youth Risk Behavior Web-based Survey, conducted in 2015, with 65,529 adolescents (31,687 girls, 33,842 boys) aged 12-18 years. DWCB was defined as engaging in any of the following behaviors for weight control over the past month: fasting, one-food diet (eating only one food over an extended period of time for weight control), vomiting, and taking laxatives/diuretics/unprescribed diet pills. Sex-stratified four-level multilevel logistic models examined potential predictors of DWCB, including age, body-mass index, puberty, perceived household economic status, parental education, living structure, school type and sex-composition, percentage of students participating in school nutrition programs, and urbanicity. RESULTS: Overall, 6.2% of Korean adolescents (8.9% of girls, 3.7% of boys) exhibited any DWCB. We found significant between-school variation among girls and boys and between-classroom variation among girls. Older age, overweight/obesity, pubertal maturity, high household economic status (vs. mid-range economic status), and vocational schooling (vs. general) were positively associated with DWCB among girls and boys. Low household economic status (vs. mid-range economic status), higher parental education, and coeducational schooling (vs. single-sex) were positively associated with DWCB among girls only. DISCUSSION: The findings suggest that DWCB are prevalent among Korean adolescents across age, sex, and socioeconomic status. Social contextual factors including school and familial environmental factors, as well as individual characteristics, should be considered when developing effective prevention strategies. PMID- 29341248 TI - Are kidney transplantation outcomes improved in children weighting 15 kilograms or less in the last decades? PMID- 29341249 TI - Reconstruction of an upper posterior thigh extensive defect with a free split anterolateral thigh (s-ALT) flap by perforator-to-perforator anastomosis: A case report. AB - The anterolateral thigh (ALT) flap is one of the most commonly used flap worldwide in reconstructive surgery, as both free flap and pedicled local flap. Here, we report the use of a free split anterolateral thigh (s-ALT) flap for reconstruction of a 14 cm * 16 cm soft tissue defect of the left upper posterior thigh region due to sarcoma resection in a patient. The ALT flap was harvested based on two musculocutaneous perforators from the right thigh and anastomosed to the contralateral descending branch of the lateral circumflex femoral artery (LCFA) in perforator-to-perforator manner, in order to gain more pedicle length and being able to cover the posterior thigh defect. The post-operative course was uneventful and the patient was discharged at 1 week post-operative. Eleven months after the operation, the aesthetic outcome was satisfactory with no functional deficit. Even though it requires technical skills and experience in perforator dissection, we believe that the s-ALT flap anstomosed to the contralateral LCFA in perforator to perforator fashion, may be a good solution in case of such a difficultly located extensive defect of the posterior thigh. PMID- 29341247 TI - Secretory expression of negative regulatory region of human Notch1 in Escherichia coli and preparation of a functional polyclonal antibody. AB - Notch signaling is a highly conserved pathway existed in multicellular organisms. It plays roles in normal human body development, human cancer initiation, progression and metastasis. The Notch negative regulatory region (NRR) is critical for Notch signaling, and cleavage at the S2 site in the NRR ultimately leads to the activation of Notch signaling. To study the function of human NRR1, we expressed the recombinant human NRR1 (rhNRR1) domain in Escherichia coli. After purification, rhNRR1 was obtained with approximately 94% purity according to SDS-PAGE analysis. Furthermore, the polyclonal anti-rhNRR1 serum raised by immunizing mouse with the purified rhNRR1 was able to reduce the generation of active form of Notch1 intracellular domain in HeLa cells, which implied the raised antibody could recognize and bind the natural conformation of Notch1 NRR. Preparation of rhNRR1 by this way is convenient, time-consuming, and could be used to the preparation of anti-NRR1 therapeutic antibody. PMID- 29341250 TI - Protectiveness of Cu water quality criteria against impairment of behavior and chemo/mechanosensory responses: An update. AB - A meta-analysis was conducted of studies that reported behavior and chemo/mechanosensory responses by fish, amphibians, and aquatic invertebrates in Cu-containing waters and also reported sufficient water chemistry for calculation of hardness-based and biotic ligand model (BLM)-based water quality criteria (WQC) for Cu. The calculated WQC concentrations were then compared with the corresponding 20% impairment concentrations (IC20) of Cu for those behavior and chemo/mechanosensory responses. The hardness-based acute and chronic WQC for Cu would not have been protective (i.e., the IC20 would have been lower than the WQC) in 33.6 and 26.2%, respectively, of the 107 combined behavior- and chemo/mechanosensory-response cases that also had adequate water chemistry data for BLM-based WQC calculations (32.7% inconclusive). In comparison, the BLM-based acute and chronic WQC for Cu would not have been protective in only 10.3 and 4.7%, respectively, of the same 107 cases (29.9% inconclusive). To improve evaluations of regulatory effectiveness, researchers conducting aquatic Cu toxicity tests should measure and report complete BLM-input water chemistry and bracket the hardness-based and BLM-based WQC concentrations for Cu that would be applicable in their exposure waters. This meta-analysis demonstrates that, overall, the BLM-based WQC for Cu were considerably more protective than the hardness-based WQC for Cu against impairment of behavior and chemo/mechanosensory responses. Environ Toxicol Chem 2018;37:1260-1279. (c) 2018 SETAC. PMID- 29341251 TI - Residue packing in globular and intrinsically disordered proteins. AB - Intrinsically disordered proteins (IDPs)/regions do not have well-defined secondary and tertiary structures, however, they are functional and it is critical to gain a deep understanding of their residue packing. The shape distributions methodology, which is usually utilized in pattern recognition, clustering, and classification studies in computer science, may be adopted to study the residue packing of the proteins. In this study, shape distributions of the globular proteins and IDPs were obtained to shed light on the residue packing of their structures. The shape feature that was used is the sphericity of tetrahedra obtained by Delaunay Tessellation of points of Calpha coordinates. Then the sphericity probability distributions were compared by using Principal Component Analysis. This computational structural study shows that the set of IDPs constitute a more diverse set than the set of globular proteins in terms of the geometrical properties of their network structures. PMID- 29341252 TI - Painful procedures can affect post-natal growth and neurodevelopment in preterm infants. AB - AIM: This Italian study evaluated whether painful procedures during the first four weeks of life were related to subsequent weight gain, head circumference (HC) and neurodevelopmental outcomes in preterm infants, METHODS: We evaluated the number of invasive procedures that infants born at less than 32 weeks of gestational age (GA) underwent in the Neonatal Intensive Care Unit of Careggi Hospital, Florence, from January to December 2015. Weight and HC were recorded at birth, 36 weeks of PMA and six and 12 months of CA. Neurological outcomes were assessed at six and 12 months of CA using the Bayley Scales of Infant and Toddler Development - Third Edition. RESULTS: We studied 83 preterm infants with a GA of 28 +/- 2 weeks and birth weight of 1098 +/- 340 g. A higher number of invasive painful procedures were related to a lower HC standard deviation score at 36 weeks of PMA and six and 12 months of CA and with lower cognitive scores at six months. At 12 months, the relationship only remained significant for infants born at less than 28 weeks (p < 0.001). CONCLUSION: Invasive painful procedures affected regular HC growth and short-term cognitive scores in preterm infants in the first year of life. PMID- 29341253 TI - A generalized Blaschko linear congenital eruption. PMID- 29341254 TI - Do Cutibacterium acnes and Staphylococcus aureus define two different types of folliculitis?: Bacteriological study of scalp folliculitis. PMID- 29341255 TI - Data-assisted protein structure modeling by global optimization in CASP12. AB - In CASP12, 2 types of data-assisted protein structure modeling were experimented. Either SAXS experimental data or cross-linking experimental data was provided for a selected number of CASP12 targets that the CASP12 predictor could utilize for better protein structure modeling. We devised 2 separate energy terms for SAXS data and cross-linking data to drive the model structures into more native-like structures that satisfied the given experimental data as much as possible. In CASP11, we successfully performed protein structure modeling using simulated sparse and ambiguously assigned NOE data and/or correct residue-residue contact information, where the only energy term that folded the protein into its native structure was the term which was originated from the given experimental data. However, the 2 types of experimental data provided in CASP12 were far from being sufficient enough to fold the target protein into its native structure because SAXS data provides only the overall shape of the molecule and the cross-linking contact information provides only very low-resolution distance information. For this reason, we combined the SAXS or cross-linking energy term with our regular modeling energy function that includes both the template energy term and the de novo energy terms. By optimizing the newly formulated energy function, we obtained protein models that fit better with provided SAXS data than the X-ray structure of the target. However, the improvement of the model relative to the 1 modeled without the SAXS data, was not significant. Consistent structural improvement was achieved by incorporating cross-linking data into the protein structure modeling. PMID- 29341256 TI - Case of classic Kaposi sarcoma of the penis successfully treated with radiotherapy. PMID- 29341257 TI - Bottom-Up Fabrication of Semiconductive Metal-Organic Framework Ultrathin Films. AB - Though generally considered insulating, recent progress on the discovery of conductive porous metal-organic frameworks (MOFs) offers new opportunities for their integration as electroactive components in electronic devices. Compared to classical semiconductors, these metal-organic hybrids combine the crystallinity of inorganic materials with easier chemical functionalization and processability. Still, future development depends on the ability to produce high-quality films with fine control over their orientation, crystallinity, homogeneity, and thickness. Here self-assembled monolayer substrate modification and bottom-up techniques are used to produce preferentially oriented, ultrathin, conductive films of Cu-CAT-1. The approach permits to fabricate and study the electrical response of MOF-based devices incorporating the thinnest MOF film reported thus far (10 nm thick). PMID- 29341258 TI - Utility of ultrasonography in hair-thread tourniquet syndrome. AB - A 2-year-old girl presented with a 2-month history of an erythematous, indurated plaque with well-defined borders on the third toe of the right foot. Bedside high resolution ultrasonography demonstrated a thickened epidermis overlying a hyperechoic focus within the dermis. Her clinical and sonographic presentation was in keeping with a foreign body causing hair-thread tourniquet syndrome. The foreign body was surgically extirpated without neurovascular sequelae. Ultrasonography expedited accurate diagnosis and is a promising adjunct to clinical evaluation for radiolucent foreign bodies. PMID- 29341259 TI - CHILD syndrome mimicking verrucous nevus in a Chinese patient responded well to the topical therapy of compound of simvastatin and cholesterol. AB - BACKGROUND: Congenital hemidysplasia with ichthyosiform erythroderma and limb defects (CHILD) syndrome is a rare X-linked dominant disorder characterized by peculiar cutaneous presentations and ipsilateral skeletal abnormalities. CHILD syndrome is caused by mutations in NSDHL gene, which involves in cholesterol synthesis. OBJECTIVES: To verify the diagnosis of CHILD syndrome and seek effective pathogenesis-based therapy with little side-effects. METHOD: We comprehensively evaluated the patient's conditions. Pathological biopsy was performed in the lesion location. Genetic tests and real-time quantitative PCR were conducted to further confirm the diagnosis. The topical application of a mixed lotion containing 2% simvastatin and 2% cholesterol to lesion areas based on the pathogenesis as well as the literature review. RESULTS: We diagnosed a rare and typical case of CHILD syndrome co-occurring with multiple VX-like lesions. The gene mutation is a large deletion of exon 3 and 4 of the NSDHL gene, which was discovered and reported for the first time in CHILD syndrome. The skin lesions, including the verruciform plaques and VX-like lesions, improved obviously after treatment. CONCLUSIONS: Multiple exons deletions or microdeletion was not rare in CHILD syndrome. Classical Sanger sequencing may not be useful enough to find all kinds of mutations. Next-generation sequencing may be more effective. It is important to conduct genetic counselling to prevent more serious defects in descendants. The excellent therapeutic effect on CHILD syndrome resulted from the topical treatment with simvastatin/cholesterol provides a proof of-concept for other topical pathogenesis-based therapies for skin disease. PMID- 29341260 TI - Essential oils improved weight gain, growth and feed efficiency of young dairy calves fed 18 or 20% crude protein starter diets. AB - The objective was to evaluate interactions between starter protein (180 vs. 200 g/kg, DM basis) and a mixture of essential oils (EOs; containing thymol, eugenol, vanillin, limonene and guaiacol) on growth, metabolic and ruminal functions of Holstein dairy calves. In a completely randomized 2 * 2 factorial design, 48 calves, 3 days old (averaging BW 42.7 +/- 1.9 kg), were allocated into groups fed the following diets: (i) 180 g/kg CP with no EO (180P-NEO); (ii) 180 g/kg CP with EO (180P-EO); (iii) 200 g/kg CP with no EO (200P-NEO); and (iv) 200 g/kg CP with EO (200P-EO). The EO was supplemented as 1 g/kg of starter DM. Calves were fed ad libitum starter diet and were weaned at day 59 of age, but diets continued until day 80. There were no interactive effects of CP and EO on intake and growth. Pre weaning feed efficiency tended to be increased for 200P-EO (p = .09). Average daily gain and feed efficiency during pre-weaning period as well as weaning weight were increased (p < .05) by EO, whereas wither height was increased by EO (p = .03) and tended to be increased for 200P vs. 180P (p = .06). Post-weaning blood urea nitrogen concentration tended to be lower in 180P vs. 200P (p = .08). Ruminal short-chain fatty acids concentration was greatest in 200P-EO. The EO increased both butyrate (p = .02) and propionate proportions (p = .01) and reduced acetate proportional ratio (p < .01). Ruminal ammonia-N was tended to be lower in calves-fed EO (p = .05) and was lower in those fed 180P vs. 200P (p < .01). In conclusion, supplementation of the starter diet with essential oil improved weight gain, growth and feed efficiency of dairy calves, irrespective of dietary protein content. PMID- 29341261 TI - Consensus statements on the clinical understanding and use of milnacipran in Hong Kong. AB - OBJECTIVE: Our aim is to develop a local consensus to guide medical practitioners and psychiatrists on the use of milnacipran in different psychiatric conditions. METHODS: By utilizing the modified Delphi technique, 12 statements were electronically voted on anonymously for their practicability of recommendation. RESULTS: There was a very high degree of agreement among the consensus group on 10 finalized consensus statements, but 2 statements were voted down due to a poor degree of agreement. CONCLUSIONS: The present consensus statements were developed as general recommendations for medical practitioners and psychiatrists to be practically referred to in clinical settings. PMID- 29341262 TI - Reversine inhibits MMP-1 and MMP-3 expressions by suppressing of ROS/MAPK/AP-1 activation in UV-stimulated human keratinocytes and dermal fibroblasts. AB - UVB has been shown to stimulate the generation of reactive oxygen species (ROS), which subsequently results in the activation of various intracellular signalling pathways and transcription factors (AP-1, NF-kappaB). These transcription factors are regulated by MAPKs, which increase cytokine and MMP expression. We examined the preventive effects of reversine on MMP-1 and MMP-3 expressions in NHEKs and NHDFs exposed to UVB irradiation. Also, we confirmed that reversine decreased pro inflammatory cytokine expression in NHEKs. The mechanism underlying the MMP inhibitory effects of reversine occurred via the suppression of UVB-induced ROS generation and MAPK/AP-1 activation. Therefore, reversine is an effective therapeutic candidate for preventing skin photoageing. PMID- 29341264 TI - A Facile Method to Fabricate Anisotropic Hydrogels with Perfectly Aligned Hierarchical Fibrous Structures. AB - Natural structural materials (such as tendons and ligaments) are comprised of multiscale hierarchical architectures, with dimensions ranging from nano- to macroscale, which are difficult to mimic synthetically. Here a bioinspired, facile method to fabricate anisotropic hydrogels with perfectly aligned multiscale hierarchical fibrous structures similar to those of tendons and ligaments is reported. The method includes drying a diluted physical hydrogel in air by confining its length direction. During this process, sufficiently high tensile stress is built along the length direction to align the polymer chains and multiscale fibrous structures (from nano- to submicro- to microscale) are spontaneously formed in the bulk material, which are well-retained in the reswollen gel. The method is useful for relatively rigid polymers (such as alginate and cellulose), which are susceptible to mechanical signal. By controlling the drying with or without prestretching, the degree of alignment, size of superstructures, and the strength of supramolecular interactions can be tuned, which sensitively influence the strength and toughness of the hydrogels. The mechanical properties are comparable with those of natural ligaments. This study provides a general strategy for designing hydrogels with highly ordered hierarchical structures, which opens routes for the development of many functional biomimetic materials for biomedical applications. PMID- 29341263 TI - Dermoscopy vs. reflectance confocal microscopy for the diagnosis of lentigo maligna. AB - BACKGROUND: Several dermoscopic and in vivo reflectance confocal microscopy (RCM) diagnostic criteria of lentigo maligna (LM)/lentigo maligna melanoma (LMM) have been identified. However, no study compared the diagnostic accuracy of these techniques. OBJECTIVE: We evaluated the diagnostic accuracy of dermoscopy and RCM for LM/LMM using a holistic assessment of the images. METHODS: A total of 223 facial lesions were evaluated by 21 experts. Diagnostic accuracy of the clinical, dermoscopic and RCM examination was compared. Interinvestigator variability and confidence level in the diagnosis were also evaluated. RESULTS: Overall diagnostic accuracy of the two imaging techniques was good (area under the curve of the sROC function: 0.89). RCM was more sensitive (80%, vs. 61%) and less specific (81% vs. 92%) than dermoscopy for LM/LMM. In particular, RCM showed a higher sensitivity for hypomelanotic and recurrent LM/LMM. RCM had a higher interinvestigator agreement and a higher confidence level in the diagnosis than dermoscopy. CONCLUSION: Reflectance confocal microscopy and dermoscopy are both useful techniques for the diagnosis of facial lesions and in particular LM/LMM. RCM is particularly suitable for the identification of hypomelanotic and recurrent LM/LMM. PMID- 29341265 TI - Cicatricial Alopecia Research Foundation meeting, May 2016: Progress towards the diagnosis, treatment and cure of primary cicatricial alopecias. AB - Primary cicatricial alopecias (PCAs) are a group of skin diseases in which there is progressive and permanent destruction of hair follicles followed by replacement with fibrous tissue. Unfortunately, by the time patients seek clinical evaluation of their hair loss, the skin is already inflamed and/or scarred, so there is little hope for a return to their normal hair growth pattern. Clinical and basic science investigations are now focusing on three forms of human PCA: lichen planopilaris (LPP), frontal fibrosing alopecia (FFA) and central centrifugal cicatricial alopecia (CCCA). Transcriptome, lipidome and other new technologies are providing new insight into the pathogenesis of some of these diseases that are being validated and further investigated using spontaneous and genetically engineered mouse models. PMID- 29341266 TI - Merkel cell carcinoma in France: a registries-based, comprehensive epidemiological survey. AB - BACKGROUND: Merkel cell carcinoma (MCC) is a rare primary cutaneous neuroendocrine carcinoma. Owing to its low incidence, epidemiological data are scarce and have never been analysed in France to identify the main epidemiological trends. METHODS: Data from MCC patients diagnosed between 1998 and 2010 were obtained from 11 French cancer registries in the FRANCIM network. The main epidemiological characteristics of MCC were investigated between 2006 and 2010 because comprehensive data were only available for this period. The main focus was tumour incidence and mortality over time. RESULTS: Between 1998 and 2010, 562 cases of MCC were reported in the registries. From 2006 to 2010 (290 cases), European- and world-standardized incidence rates were 0.26 and 0.43 per 100,000 person-years in men and 0.24 and 0.38 per 100,000 person-years in women. MCC is more frequent in females in France (56.9%) with male/female ratio 1.1. Relative survival rates were 84%, 56% and 42% at one, three and 5 years, respectively. CONCLUSIONS: The incidence of MCC clearly increased over time in all areas under focus. The standardized incidence in France was comparable to the incidence observed in other countries for the same period, but French data are too recent to conclude on an increase in MCC incidence. Prognosis remains poor in all countries in which data are available. PMID- 29341267 TI - Cross-Linking of Thiolated Paclitaxel-Oligo(p-phenylene vinylene) Conjugates Aggregates inside Tumor Cells Leads to "Chemical Locks" That Increase Drug Efficacy. AB - How to reduce the resistance of certain tumor cells to paclitaxel (PTX) and related taxoid anticancer drugs is a major challenge for improving cure rates. An oligo(p-phenylenevinylene) unit with thiol groups and a PTX unit (OPV-S-PTX), which enhances drug efficacy and reverses resistance is thus designed. The mechanism involves diffusion of OPV-S-PTX into the cell, where pi-pi interactions lead to aggregation. Cross-linking of the aggregates via oxidation of thiol groups is favored in tumor cells because of the higher reactive oxygen species (ROS) concentration. Cross-linked aggregates "chemically lock" the multichromophore particle for a more persistent effect. The IC50 of OPV-S-PTX for tumor cell line A549 is reduced down to 0.33 * 10-9 m from that observed for PTX itself (41 * 10-9 m). Enhanced efficacy by OPV-S-PTX is proposed to proceed via acceleration of microtubule bundle formation. A549/T-inoculated xenograft mice experiments reveal suppression of tumor growth upon OPV-S-PTX treatment. Altogether, these results show that the internal cross-linking of OPV-S-PTX through ROS provides a means to discriminate between tumor and healthy cells and the formation of the chemically locked particles enhances drug efficacy and helps in reducing resistance. PMID- 29341268 TI - Evans syndrome secondary to undiagnosed chronic lymphocytic leukemia in a patient with unexplained bleeding. PMID- 29341271 TI - Review shows that early foetal alcohol exposure may cause adverse effects even when the mother consumes low levels. AB - AIM: Studies are increasingly focusing on the effects of prenatal alcohol exposure (PAE) on child health. The aim of this review was to provide paediatricians with new insights to help them communicate key messages about avoiding alcohol during pregnancy. METHODS: Inspired by the 7th International Conference on Fetal Alcohol Spectrum Disorder, which focused on integrating research, policy and practice, we studied English language papers published since 2010 on how early PAE triggered epigenetic mechanisms that had an impact on the development of some chronic diseases. We also report the findings of a human study using three-dimensional photography of the face to explore associations between PAE and craniofacial phenotyping. RESULTS: Animal models with different alcohol exposure patterns show that early PAE may lead to long-term chronic effects, due to developmental programming for some adult diseases in cardiovascular, metabolic and renal systems. The study with three-dimensional photographing is very promising in helping paediatricians to understand how even small amounts of PAE can affect craniofacial phenotyping. CONCLUSION: Even low levels of PAE can cause adverse foetal effects and not just in the brain. It is not currently possible to determine a safe period and level when alcohol consumption would not affect the foetus. PMID- 29341270 TI - Pretransplant depression in lung recipients - a lost battle? PMID- 29341272 TI - Editorial: getting bullish about portal hypertension-chronic treatment with oral taurine? PMID- 29341269 TI - Characterization of a 3xTg-AD mouse model of Alzheimer's disease with the senescence accelerated mouse prone 8 (SAMP8) background. AB - No model fully recapitulates the neuropathology of Alzheimer's disease (AD). Although the triple-transgenic mouse model of AD (3xTg-AD) expresses Abeta plaques and tau-laden neurofibrillary tangles, as well as synaptic and behavioral deficits, it does not display frank neuronal loss. Because old age is the most important risk factor in AD, senescence-related interactions might be lacking to truly establish an AD-like environment. To investigate this hypothesis, we bred the 3xTg-AD mouse with the senescence-accelerated mouse prone 8 (SAMP8), a model of accelerated aging. We generated four groups of heterozygous mice with either the SAMP8 or SAMR1 (senescence-resistant-1) genotype, along with either the 3xTg AD or non-transgenic (NonTg) genotype. Despite no differences among groups in total latency to escape the Barnes maze, a greater number of errors were noticed before entering the target hole in 19-month-old P8/3xTg-AD mice at day 5, compared to other groups. Postmortem analyses revealed increased cortical levels of phospho-tau (Thr231) in female P8/3xTg-AD mice (+277% vs. R1/3xTg-AD mice), without other tau-related changes. Female P8/3xTg-AD mice exhibited higher cortical soluble Abeta40 and Abeta42 concentrations (Abeta40, +85%; Abeta42, +35% vs. R1/3xTg-AD), whereas insoluble forms remained unchanged. Higher Abeta42 load coincided with increased astroglial activation in female P8/3xTg-AD mice, as measured with glial fibrillary acidic protein (GFAP) (+57% vs. R1/3xTg-AD mice). To probe neuronal degeneration, concentrations of neuronal nuclei (NeuN) were measured, but no differences were detected between groups. Altogether, the SAMP8 genotype had deleterious effects on spatial memory and exerted female-specific aggravation of AD neuropathology without overt neurodegeneration in 3xTg-AD mice. PMID- 29341273 TI - Editorial: getting bullish about portal hypertension-chronic treatment with oral taurine? Author's reply. PMID- 29341274 TI - Letter: addition of azathioprine to infliximab maintenance therapy in patients with anti-drug antibodies and subclinical inflammation. PMID- 29341275 TI - Editorial: vedolizumab as a treatment and cause of extra-intestinal manifestations of inflammatory bowel disease. PMID- 29341276 TI - Letter: more studies are needed to elucidate the impact of HBV/HCV coinfection on cirrhosis and its consequences-Authors' reply. PMID- 29341277 TI - Editorial: tofacitinib and biologics for moderate-to-severe ulcerative colitis what is best in class? Authors' reply. PMID- 29341278 TI - Editorial: direct-acting antivirals significantly improve quality of life in patients with hepatitis C virus infection-Author's reply. PMID- 29341279 TI - Letter: more studies are needed to elucidate the impact of HBV/HCV coinfection on cirrhosis and its consequences. PMID- 29341280 TI - Editorial: direct-acting antivirals significantly improve quality of life in patients with hepatitis C virus infection. PMID- 29341281 TI - Editorial: tofacitinib and biologics for moderate-to-severe ulcerative colitis what is best in class? PMID- 29341282 TI - Expression analyses of candidate genes related to meat quality traits in squabs from two breeds of meat-type pigeon. AB - In this study, meat quality traits were compared between squabs from two pigeon breeds: one Chinese indigenous breed, the Shiqi (SQ) meat-type pigeon, and an imported breed, the white king (WK) meat-type pigeon. Breed differences were detected in the content of intramuscular fat (IMF) in the breast muscle. SQ squabs had significantly higher IMF content than the WK birds. The shear force value (an objective measure of meat tenderness) of SQ birds was also relatively lower than that of the WK squabs. Further analysis of fatty acids profile revealed that SQ squabs exhibited significant advantage in the synthesis of polyunsaturated fatty acids, while WK squabs were significantly higher in the sum of monounsaturated fatty acids. Breast muscle in the SQ squabs was also significantly higher in the ratio of polyunsaturated fatty acids to saturated fatty acids, as well as the sum of omega 6 fatty acids. Variability of expression levels of functional genes in relation to fat accumulation and meat tenderness was analysed by qRT-PCR. Gene expression analyses showed that the hepatic expression of LPL (lipoprotein lipase), FABP4 (fatty acid-binding protein 4), and CAPN2 (calpain-2) were significantly higher in the SQ squabs. In the breast muscle tissue, the FABP3 (fatty acid-binding protein 3) and CAPN2mRNA abundance was significantly higher in SQ squabs. Our results suggested that these differentially expressed genes might be candidate genes used in the programmes of targeted selection for squabs with higher IMF content, tender meat, and more favourable fatty acids composition. PMID- 29341283 TI - Mogamulizumab-induced photosensitivity in patients with mycosis fungoides and other T-cell neoplasms. AB - BACKGROUND: Mogamulizumab (Mog) is a defucosylated, therapeutic monoclonal antibody, targeting CCR4 and was first approved in Japan for the treatment of adult T-cell leukaemia/lymphoma (ATLL), followed by cutaneous T-cell lymphoma and peripheral T-cell lymphoma. OBJECTIVE: To retrospectively investigate development of photosensitivity in patients with mycosis fungoides and other T-cell neoplasms after treatment with Mog. METHODS: We treated seven cutaneous lymphoma patients with Mog. Upon combination treatment with narrow-band UVB, we noticed that four patients developed photosensitivity dermatitis following Mog therapy, including two cases of mycosis fungoides, one case of adult T-cell leukaemia/lymphoma and one case of EB virus-associated T-cell lymphoproliferative disorder. Phototest was performed with UVA and UVB, and immunohistochemical staining for CD4, CD8 and Foxp3 was conducted in both photosensitivity and lymphoma lesions. RESULTS: Phototest revealed that the action spectrum of the photosensitivity was UVB in three cases and both UVB and UVA in one case. Histopathologically, the photosensitive lesions were characterized by a lichenoid tissue reaction with a CD8+ T cell-dominant infiltrate, sharing the feature with chronic actinic dermatitis, an autoreactive photodermatosis with a cytotoxic T-cell response. Foxp3+ regulatory T cells (Tregs) were decreased in the photosensitivity lesions compared with the lymphoma lesions. CONCLUSION: Increased incidence of photosensitivity reaction was observed during Mog treatment. Decreased number of Tregs in the lesional skin suggests that this reaction is possibly induced by autoreactive cytotoxic T cells. PMID- 29341284 TI - Atypical presentation of eosinophilic annular erythema in a 5-year-old girl. PMID- 29341285 TI - 2,2'-Bipyridine Equipped with a Disulfide/Dithiol Switch for Coupled Two-Electron and Two-Proton Transfer. AB - [1,2]Dithiino[4,3-b:5,6-b']dipyridine (1) and its protonated open form 3,3' dithiol-2,2'-bipyridine (2) were synthesised and their interconversion investigated. The X-ray structure of 2 revealed an anti orientation of the two pyridine units and a zwitterionic form. In depth electrochemical studies in combination with DFT calculations lead to a comprehensive picture of the redox chemistry of 1 in the absence and presence of protons. Initial one-electron reduction at E1 =-1.20 V results in the formation of the radical anion 1red with much elongated S-S bond, which readily undergoes further reduction at E2 =-1.38 V. Water triggers a potential inversion (E>=-1.13 V for the second reduction) as the radical anion 1red is protonated at its basic N atom. DFT studies revealed that S-S bond breaking and twisting of the pyridine units generally occurs after the second reduction step, whereas the potential inversion induced by protonation is a result of charge compensation. The CV data were simulated to derive rate constants for the individual chemical and electrochemical reactions for both scenarios in the absence and presence of protons. PMID- 29341286 TI - Test-1 analyzer and conventional Westergren method for erythrocyte sedimentation rate: A comparative study between two laboratories. AB - BACKGROUND: Measurement of the length of sedimentation reaction in blood (LSRB), also called erythrocyte sedimentation rate (ESR), is a widely used hematology test. This study intends to compare ESR levels measured by Test-1 method and International Council for Standardization in Hematology's (ICSH) reference method, and analyzes the effect of hematocrit (Hct) on ESR results. MATERIAL AND METHODS: A total of 755 patients from 2 hospitals were included in the study, and samples with EDTA were studied by Test-1 method for ESR measurement and total blood count, whereas citrated samples were studied with reference Westergren method. Then, 2 methods were compared. Distribution of ESR results according to the ESR(<=20, >20 mm/h) and Hct(>=35%, <35%) levels and hospital type was analyzed. ESR levels with Hct levels<35% were corrected with Fabry's formula. RESULTS: The mean and SD values for the Test-1 method, reference Westergren method, and corrected ESR measurement were 21.30 +/- 18.39, 28.59 +/- 25.82, and 24.92 +/- 20.58 mm/h, respectively. Within the whole group, the correlation coefficient (r) was .77 (.7-.80) with a significance level P < .001. Passing Bablok regression analysis of the methods resulted in a regression equation y = 1.00 (95% Cl: 0.43-1.88) + 0.75 (95% Cl: 0.70-0.78)x while the significance of linearity was acceptable (P < .01). All subgroup linear regression analyses revealed that the correlation was acceptable, except ESR > 20 mm/h group, Hct < 35% group, and corrected ESR group (significance level were P > .10). CONCLUSION: The study showed that the role of the hospital and the capacity of testing are important in choosing the instrument for measuring ESR. Furthermore, the patient profile, especially malignancy possibility and Hct level, may be important for instrument selection. PMID- 29341287 TI - One-Pot Synthesis of Functionalized Fused Furans via a BODIPY-Catalyzed Domino Photooxygenation. AB - Six-membered ring fused furans containing a tetrasubstituted tertiary carbon were prepared in an unprecedented one-pot BODIPY-catalyzed domino photooxygenation/reduction process. A series of functionalized furans was synthesized from readily available 2-alkenylphenols and mechanistic studies were performed to account for the domino photosensitized oxygenation. PMID- 29341288 TI - Lipid and Nucleic Acid Chemistries: Combining the Best of Both Worlds to Construct Advanced Biomaterials. AB - Hybrid synthetic amphiphilic biomolecules are emerging as promising supramolecular materials for biomedical and technological applications. Herein, recent progress in the field of nucleic acid based lipids is highlighted with an emphasis on their molecular design, synthesis, supramolecular properties, physicochemical behaviors, and applications in the field of health science and technology. In the first section, the design and the study of nucleolipids are in focus and then the glyconucleolipid family is discussed. In the last section, recent contributions of responsive materials involving nucleolipids and their use as smart drug delivery systems are discussed. The supramolecular materials generated by nucleic acid based lipids open new challenges for biomedical applications, including the fields of medicinal chemistry, biosensors, biomaterials for tissue engineering, drug delivery, and the decontamination of nanoparticles. PMID- 29341289 TI - Medically unexplained dermatologic symptoms: hiding in plain sight? PMID- 29341290 TI - Early failure of kidney transplants in the current era-a national cohort study. AB - Although short-term outcome after kidney transplantation has improved, a small proportion of grafts are lost during the first year. We characterize in detail all early graft losses in the current era in a nationwide cohort of kidney transplant recipients. Altogether 2447 kidney transplantations, performed between June 2004 and October 2016, were included. All graft losses (return to dialysis or patient death) occurring during the first post-transplant year were characterized. During the first post-tranplant year, altogether 109 grafts were lost, 67 grafts failed, and 42 patients died. Fifty-five per cent of the deaths were due to cardiovascular causes, and 29% due to infectious causes. Twenty-one per cent of the failed grafts were primary nonfunction of unknown reason, 34% were lost due to venous thrombosis and 9% due to arterial thrombosis, but only 10 (15%) patients lost a graft due to acute cellular or humoral rejection. Independent risk factors for death included diabetes, and longer duration of pretransplant dialysis treatment, whereas risk factors for graft failure included increased level of panel-reactive antibodies and increased cold ischaemia time. Kidney allografts are rarely lost due to immunological reasons during the first post-transplant year. The most common causes of early death after transplantation are cardiovascular and infectious causes. PMID- 29341291 TI - Dermoscopy of basal cell carcinoma. AB - Dermoscopy is widely used in dermatological practice. The method increases the accuracy of basal cell carcinoma (BCC) detection. Pigmented and nonpigmented variants of basal cell carcinoma present different dermoscopic features. Specific dermoscopy criteria have been recognized in different subtypes of BCC. Differentiation of superficial BCC from other subtypes is the most important issue, as it may determine further management decisions. PMID- 29341292 TI - Amniotic fluid stem cell exosomes: Therapeutic perspective. AB - It is widely accepted that the therapeutic potential of stem cells can be largely mediated by paracrine factors, also included into exosomes. Thus, stem cell derived exosomes represent a major therapeutic option in regenerative medicine avoiding, if compared to stem cells graft, abnormal differentiation and tumor formation. Exosomes derived from mesenchymal stem cells (MSC) induce damaged tissue repair, and can also exert immunomodulatory effects on the differentiation, activation and function of different lymphocytes. Therefore, MSC exosomes can be considered as a potential treatment for inflammatory diseases and also an ideal candidate for allogeneic therapy due to their low immunogenicity. Amniotic fluid stem cells (AFSCs) are broadly multipotent, can be expanded in culture, and can be easily cryopreserved in cellular banks. In this study, morphology, phenotype, and protein content of exosomes released into amniotic fluid in vivo and from AFSC during in vitro culture (conditioned medium) were examined. We found that AFSC-derived exosomes present different molecules than amniotic fluid ones, some of them involved in immunomodulation, such transforming growth factor beta and hepatic growth factors. The immunomodulatory effect of AFSC's exosomes on peripheral blood mononuclear cells stimulated with phytohemagglutinin was compared to that of the supernatant produced by such conditioned media deprived of exosomes. We present evidence that the principal effect of AFSC conditioned media (without exosomes) is the induction of apoptosis in lymphocytes, whereas exposure to AFSC-derived exosomes decreases the lymphocyte's proliferation, supporting the hypothesis that the entire secretome of stem cells differently affects immune-response. (c) 2017 BioFactors, 44(2):158 167, 2018. PMID- 29341293 TI - Circularly Polarized Luminescence from Inorganic Materials: Encapsulating Guest Lanthanide Oxides in Chiral Silica Hosts. AB - Recently, circularly polarized luminescence (CPL)-active systems have become a very hot and interesting subject in chirality- and optics-related areas. The CPL active systems are usually available by two approaches: covalently combining a luminescent centre to chiral motif or associating the guest of luminescent probe to a chiral host. However, all the chiral components in CPL materials were organic, although the luminescent components were alternatively organics or inorganics. Herein, the first totally inorganic CPL-active system by "luminescent guest-chiral host" strategy is proposed. Luminescent sub-10 nm lanthanide oxides (Eu2 O3 or Tb2 O3 ) nanoparticles (guests) were encapsulated into chiral non helical SiO2 nanofibres (host) through calcination of chiral SiO2 hybrid nanofibres, trapping Eu3+ (or Tb3+ ). These lanthanide oxides display circular dichroism (CD) optical activity in the ultraviolet wavelength and CPL signals around at 615 nm for Eu3+ and 545 nm for Tb3+ . This work has implications for inorganic-based CPL-active systems by incorporation of various luminescent guests within chiral inorganic hosts. PMID- 29341294 TI - Topical nitroglycerin for the treatment of intraoperative microsurgical vasospasm. AB - BACKGROUND: Papaverine remains a popular agent to treat intraoperative microsurgical vasospasm. However, the recent shortage has forced surgeons to trial antispasmodic agents unproven in microsurgery, but commonly used in other areas. During this shortage we have trialed topical nitroglycerin to break intraoperative vasospasm. This study aims to analyze the outcomes of this medication on flap complications compared with papaverine. METHODS: All consecutive free flaps performed for breast reconstruction at a single institution were reviewed. Data collected included patient demographics, co morbidities, complications and type of antispasmodic agent. Rates of re exploration, complications and flap salvage were compared between patients receiving nitroglycerin and papaverine. RESULTS: Over 10 years, 991 flaps were treated with antispasmodics: 18 of which were treated with topical nitroglycerin. Patients treated with nitroglycerin tended to have higher BMI (32.1 vs. 27.9, P < 0.01), higher rates of pre-operative chemotherapy (83.3% vs. 51.3%, P < 0.01) and shorter follow-up duration (735 vs. 1691 days, P < 0.01). However, no differences in complications were observed, including: unplanned return to the operating room, flap loss, fat necrosis, infection, hematoma, or seroma. Subgroup analysis with a time-matched cohort of papaverine patients revealed minimal difference in comorbidities and no difference in complications. CONCLUSIONS: Substituting topical nitroglycerin for papaverine to treat vasospasm during the shortage did not demonstrate an increased rate of flap loss or return to the operating room, making these medications a safe alternative to papaverine. PMID- 29341295 TI - Sustainability of the Australian radiation oncology workforce: A survey of radiation therapists and radiation oncology medical physicists. AB - This study aimed to determine and compare Radiation Therapists' (RTs') and Radiation Oncology Medical Physicists' (ROMPs') perspectives about their profession and workplace, satisfaction with career progression opportunities, and leaving the current workplace. RTs and ROMPs who were currently or had previously worked in Australia were invited to complete an online survey. Univariate and multivariate methods were used for analysis. Participants were 342 RTs and 112 ROMPs with estimated response rates of 14% and 26% respectively. Both professions rated workload poorly and identified the need for improvement in: communication between professions' members, support for junior staff/new graduates, staff morale, on-site training and multidisciplinary communication. RTs, more than ROMPs, perceived their profession was recognised and respected, but RTs were less likely to be satisfied with career progression/advancement, job promotion prospects and opportunities to specialise. At least 20% of RTs and ROMPs were thinking about leaving their workplace and 13% of RTs and 8% of ROMPs were thinking about leaving their profession. Different factors contributed to workforce satisfaction and retention within each profession. Staff satisfaction and career progression are critical to retain RTs and ROMPs. Further research is required to explore strategies to address workplace dissatisfaction, recruitment and retention. PMID- 29341296 TI - The five-year survival of children with Down syndrome in Norway 1994-2009 differed by associated congenital heart defects and extracardiac malformations. AB - AIM: We investigated the prevalence of Down syndrome in a nationwide birth cohort, focusing on congenital heart defects (CHDs), their associations with extracardiac malformations (ECM) and survival. METHODS: National registers were used to identify Norwegian births (1994-2009) and deaths (1994-2014) and updated with hospital diagnoses. We estimated birth defect frequencies in Down syndrome and the general population, the association between CHDs and ECM and hazard ratios for death from different combinations of CHDs and ECM. RESULTS: Down syndrome was found in 1672 of 953 450 births (17.6 per 10 000). Of the 1251 live births (13.3 per 10 000), 58% had CHD and 9% ECM. CHDs were associated with oesophageal atresia (p = 0.02) and Hirschsprung's disease (p = 0.03) but with no other malformations. The five-year survival for Down syndrome increased from 91.8% (1994-1999) to 95.8% (2000-2009) (p = 0.006), and overall survival was 92.0% with CHD and 97.4% without. Compared with Down syndrome children without CHD or ECM, the five-year mortality was similar for those with nonsevere CHDs, without or with ECM, but 4-7 times higher in those with severe CHDs without ECM and 13-28 times higher in those with severe CHDs and ECM. CONCLUSION: Down syndrome childhood survival improved, but mortality remained high with severe CHDs and extracardiac defects. PMID- 29341297 TI - Ligand- and Metal-Based Reactivity of a Neutral Ruthenium Diolefin Diazadiene Complex: The Innocent, the Guilty and the Suspicious. AB - Coordination of the diazadiene diolefin ligand (trop2 dad) to ruthenium leads to various complexes of composition [Ru(trop2 dad)(L)]. DFT studies indicate that the closed-shell singlet (CSS), open-shell singlet (OSS), and triplet electronic structures of this species are close in energy, with the OSS spin configuration being the lowest in energy for all tested functionals. Singlet-state CASSCF calculations revealed a significant multireference character for these complexes. The closed-shell singlet wavefunction dominates, but these complexes have a significant (~8-16 %) open-shell singlet [d7 -RuI (L)(trop2 dad.- )] contribution mixed into the ground state. In agreement with their ambivalent electronic structure, these complexes reveal both metal- and ligand-centered reactivity. Most notable are the reactions with AdN3 , diazomethane, and a phosphaalkyne leading to scission of the C-C bond of the diazadiene (dad) moiety of the trop2 dad ligand, resulting in net (formal) nitrene, carbene, or P=C insertion in the dad C-C bond, respectively. Supporting DFT studies revealed that several of the ligand-based reactions proceed via low-barrier radical-type pathways, involving the dad.- ligand radical character of the OSS or triplet species. PMID- 29341298 TI - Multiple signaling systems target a core set of transition metal homeostasis genes using similar binding motifs. AB - Bacterial response to metals can require complex regulation. We report an overlapping regulation for copper and zinc resistance genes in the denitrifying bacterium, Pseudomonas stutzeri RCH2, by three two-component regulatory proteins CopR1, CopR2 and CzcR. We conducted genome-wide evaluations to identify gene targets of two paralogous regulators, CopR1 and CopR2, annotated for copper signaling, and compared the results with the gene targets for CzcR, implicated in zinc signaling. We discovered that the CopRs and CzcR have largely common targets, and crossregulate a core set of P. stutzeri copper and zinc responsive genes. We established that this crossregulation is enabled by a conserved binding motif in the upstream regulatory regions of the target genes. The crossregulation is physiologically relevant as these regulators synergistically and antagonistically target multicopper oxidases, metal efflux and sequestration systems. CopR1 and CopR2 upregulate two cop operons encoding copper tolerance genes, while all three regulators downregulate a putative copper chaperone, Psest_1595. CzcR also upregulated the oprD gene and the CzcIABC Zn2+ efflux system, while CopR1 and CopR2 downregulated these genes. Our study suggests that crossregulation of copper and zinc homeostasis can be advantageous, and in P. stutzeri this is enabled by shared binding motifs for multiple response regulators. PMID- 29341299 TI - Autonomous Purkinje cell axonal dystrophy causes ataxia in peroxisomal multifunctional protein-2 deficiency. AB - Peroxisomes play a crucial role in normal neurodevelopment and in the maintenance of the adult brain. This depends largely on intact peroxisomal beta-oxidation given the similarities in pathologies between peroxisome biogenesis disorders and deficiency of multifunctional protein-2 (MFP2), the central enzyme of this pathway. Recently, adult patients diagnosed with cerebellar ataxia were shown to have mild mutations in the MFP2 gene, hydroxy-steroid dehydrogenase (17 beta) type 4 (HSD17B4). Cerebellar atrophy also develops in MFP2 deficient mice but the cellular origin of the degeneration is unexplored. In order to investigate whether peroxisomal beta-oxidation is essential within Purkinje cells, the sole output neurons of the cerebellum, we generated and characterized a mouse model with Purkinje cell selective deletion of the MFP2 gene. We show that selective loss of MFP2 from mature cerebellar Purkinje neurons causes a late-onset motor phenotype and progressive Purkinje cell degeneration, thereby mimicking ataxia and cerebellar deterioration in patients with mild HSD17B4 mutations. We demonstrate that swellings on Purkinje cell axons coincide with ataxic behavior and precede neurodegeneration. Loss of Purkinje cells occurs in a characteristic banded pattern, proceeds in an anterior to posterior fashion and is accompanied by progressive astro- and microgliosis. These data prove that the peroxisomal beta-oxidation pathway is required within Purkinje neurons to maintain their axonal integrity, independent of glial dysfunction. PMID- 29341301 TI - Editorial. PMID- 29341300 TI - Inflammatory and related biomarkers are associated with post-transplant diabetes mellitus in kidney recipients: a retrospective study. AB - In this study, we investigate the association between selected inflammatory related biomarkers and post-transplant hyperglycemia in kidney transplant recipients. This retrospective analysis comprises 852 patients receiving a kidney transplant at the Norwegian national transplant center between 2007 and 2012, all having a normal oral glucose tolerance test (OGTT) before transplantation. A diagnostic OGTT was performed 10 weeks post-transplant to examine the association between inflammation-related biomarkers and two-hour plasma glucose (2HPG) by multivariable linear regression models adjusting for BMI, age, graft function, fasting insulin levels, dosage of prednisolone, and concentration of calcineurin inhibitors. Six of 20 biomarkers were significantly associated with 2HPG in multivariate analyses showing strong associations with soluble tumor necrosis factor type 1 (P = 0.027), Pentraxin 3 (P = 0.019), macrophage migration inhibitory factor (P = 0.024), and endothelial protein C receptor (P = 0.001). These associated markers reflect several distinct but also overlapping pathways including activation of tumor necrosis factor, macrophages, and endothelial cells. The multinomial logistic regression model showed a clear association between the inflammatory biomarkers and post-transplant diabetes mellitus (PTDM). The association between a range of inflammation markers and PTDM suggests that these markers may be target for future studies on pathogenesis and perhaps also treatment of PTDM. PMID- 29341302 TI - Twisted Charge-Transfer Antennae for Ultra-Bright Terbium(III) and Dysprosium(III) Bioprobes. AB - The design of original twisted charge transfer antennae in which a non-planar geometry is enforced thanks to one or two bulky ortho-Me substituents allows us to prepare the corresponding ultra-bright TbIII and DyIII bioprobes. The brightness of the TbIII derivative compares well with that of the benchmark Tb Lumi4 complex. The first bio-imaging experiments with a DyIII luminescent bioprobe are also reported. PMID- 29341303 TI - Cardiorespiratory fitness is associated with enhanced hippocampal functional connectivity in healthy young adults. AB - Consistent associations have been found between higher cardiorespiratory fitness (CRF) and indices of enhanced brain health and function, including behavioral measures of cognition as well as neuroimaging indicators such as regional brain volume. Several studies have reported that higher CRF levels are associated with a larger hippocampus, yet associations between volume and memory or functional connectivity metrics remain poorly understood. Using a multi-modal framework, we hierarchically examine the association between CRF and hippocampal volume and resting state functional connectivity (rsFC) in younger adults, as well as their relationship between with memory function. We conducted theoretically-driven analyses with seeds in the anterior and posterior hippocampus, as well as control seeds in the caudate nucleus. We tested whether (1) hippocampal connectivity with prefrontal cortical regions was associated with CRF in an adult sample much younger than traditionally tested, (2) associations between CRF and rsFC remain significant after adjusting for volume, and (3) volume and rsFC are related to memory. We found that higher CRF levels were associated with larger anterior hippocampal volume and more positive rsFC of the anterior hippocampus to several regions including the prefrontal cortex. rsFC also accounted for significant variance in CRF, above and beyond volume. CRF can thus be independently linked to increased anterior hippocampal volume, as well as stronger hippocampal rsFC in a population much younger than those typically tested, suggesitng it is critical to maintainig multiple aspects of brain health. PMID- 29341304 TI - Enantioselective Synthesis of Aminodiols by Sequential Rhodium-Catalysed Oxyamination/Kinetic Resolution: Expanding the Substrate Scope of Amidine-Based Catalysis. AB - Regio- and stereoselective oxyamination of dienes through a tandem rhodium catalysed aziridination-nucleophilic opening affords racemic oxazolidinone derivatives, which undergo a kinetic resolution acylation process with amidine based catalysts (ABCs) to achieve s values of up to 117. This protocol was applied to the enantioselective synthesis of sphingosine. PMID- 29341306 TI - No concession without demand. PMID- 29341305 TI - Plasmid-Templated Control of DNA-Cyclodextrin Nanoparticle Morphology through Molecular Vector Design for Effective Gene Delivery. AB - Engineering self-assembled superstructures through complexation of plasmid DNA (pDNA) and single-isomer nanometric size macromolecules (molecular nanoparticles) is a promising strategy for gene delivery. Notably, the functionality and overall architecture of the vector can be precisely molded at the atomic level by chemical tailoring, thereby enabling unprecedented opportunities for structure/self-assembling/pDNA delivery relationship studies. Beyond this notion, by judiciously preorganizing the functional elements in cyclodextrin (CD)-based molecular nanoparticles through covalent dimerization, here we demonstrate that the morphology of the resulting nanocomplexes (CDplexes) can be tuned, from spherical to ellipsoidal, rod-type, or worm-like nanoparticles, which makes it possible to gain understanding of their shape-dependent transfection properties. The experimental findings are in agreement with a shift from chelate to cross linking interactions on going from primary-face- to secondary-face-linked CD dimers, the pDNA partner acting as an active payload and as a template. Most interestingly, the transfection efficiency in different cells was shown to be differently impacted by modifications of the CDplex morphology, which has led to the identification of an optimal prototype for tissue-selective DNA delivery to the spleen in vivo. PMID- 29341307 TI - Chemical and Enzymatic Strategies for Bacterial and Mammalian Cell Surface Engineering. AB - The cell surface serves important functions such as the regulation of cell-cell and cell-environment interactions. The understanding and manipulation of the cell surface is important for a wide range of fundamental studies of cellular behavior and for biotechnological and medical applications. With the rapid advance of biology, chemistry and materials science, many strategies have been developed for the functionalization of bacterial and mammalian cell surfaces. Here, we review the recent development of chemical and enzymatic approaches to cell surface engineering with particular emphasis on discussing the advantages and limitations of each of these strategies. PMID- 29341308 TI - Stiffness regulates the proliferation and osteogenic/odontogenic differentiation of human dental pulp stem cells via the WNT signalling pathway. AB - OBJECTIVES: Researches showed that stiffness of the extracellular matrix can affect the differentiation of many stem cells. Dental pulp stem cells (DPSCs) are a promising type of adult stem cell. However, we know little about whether and how the behaviour of DPSCs is influenced by stiffness. MATERIALS AND METHODS: We carried out a study that cultured DPSCs on tunable elasticity polydimethylsiloxane substrates to investigate the influence on morphology, proliferation, osteogenic/odontogenic differentiation and its possible mechanism. RESULTS: Soft substrates changed the cell morphology and inhibited the proliferation of DPSCs. Expression of markers related to osteogenic/odontogenic differentiation was significantly increased as the substrate stiffness increased, including ALP (alkaline phosphatase), OCN (osteocalcin), OPN (osteopontin), RUNX 2 (runt-related transcription factor-2), BMP-2 (bone morphogenetic protein-2), DSPP (dentin sialophosphoprotein) and DMP-1 (dentin matrix protein-1). Mechanical properties promote the function of DPSCs related to the Wnt signalling pathway. CONCLUSIONS: Our results showed that mechanical factors can regulate the proliferation and differentiation of DPSCs via the WNT signalling pathway. This provides theoretical basis to optimize dental or bone tissue regeneration through increasing stiffness of extracelluar matrix. PMID- 29341309 TI - Issue Information-Declaration of Helsinki. PMID- 29341310 TI - Critical appraisal of the oxidative stress pathway in vitiligo: a systematic review and meta-analysis. AB - BACKGROUND: The pathogenesis of vitiligo remains a topic of extensive debate. This is partly due to the moderate efficacy of current treatments. The role of the oxidative stress pathway in vitiligo is a popular although controversial research topic. OBJECTIVE: To clarify the role of the oxidative stress pathway in vitiligo compared to other inflammatory skin disorders and to assess the therapeutic role of antioxidants. METHODS: We conducted a systematic search of the existing literature on the aberrancies of the oxidative stress pathway in vitiligo. Subsequently, the efficacy of both topical and oral antioxidants in clinical trials was investigated. RESULTS: A deregulated oxidative pathway is clearly evident with elevated superoxide dismutase, decreased catalase and increased lipid peroxidation. However, similar results have been obtained in other inflammatory skin diseases such as psoriasis, atopic dermatitis, lichen planus and urticaria. This questions the unique role of oxidative stress in the development of vitiligo. Some isolated successes have been reported with oral ginkgo biloba, polypodium leucotomos and vitamin C and E preparations, while other clinical trials have failed to show reproducible results. The use of topical antioxidants delivers in general no beneficial results. CONCLUSION: The oxidative pathway is affected in vitiligo, but its unique initiating or contributory role in the pathogenesis is less evident. Interesting data support the added value of oral antioxidants in vitiligo although confirmatory studies are missing. PMID- 29341311 TI - Decreased thermal sweating of central sudomotor mechanism in African and Korean men. AB - OBJECTIVE: Tropical natives sweat less and preserve more body fluid than temperate natives, tolerating heat stress. However, the mechanisms involved in such sweating reduction have not been fully elucidated. We examined the sudomotor responses of men of African (n = 36) and Korean (n = 41) ancestry during hot water (43 degrees C) leg immersion (central sudomotor response). Correlations between mean body temperature, basal metabolic rate (BMR), and sweat rate were also examined. METHODS: All procedures were done in an automated climate chamber. Local skin temperatures and BMR were measured and mean body temperature was calculated. Sweating activities which include evaporative loss rate, sweat onset time, sweat rate, sweat volume, and whole-body sweat loss volume were examined. RESULTS: In the heat load test, Africans showed lower mean body and local skin temperatures than Koreans before and after heating. Before and after heating, BMR declined significantly in Africans, while that of Koreans declined less. Local sweat onset time increased more in Africans than in Koreans. Local evaporative loss rate, local sweat volume, local sweat rate, and whole body sweat loss volume were reduced in Africans compared with Koreans. There were positive associations of mean body temperature and resting BMR with mean sweat rate. CONCLUSION: In conclusion, we observed a larger reduction of sudomotor activity in tropical Africans than in temperate Koreans, which was associated with their lower mean body temperature and lower resting BMR. PMID- 29341312 TI - Recurrent terbinafine resistant Trichophyton rubrum infection in a child with congenital ichthyosis. AB - Dermatophytosis in children caused by Trichophyton rubrum is preferably treated with topical or systemic terbinafine. We report the first case of terbinafine resistance in a child with recurrent T. rubrum dermatophytosis and congenital ichthyosiform erythroderma. PMID- 29341313 TI - Synthesis of alpha-l-Fucopyranoside-Presenting Glycoclusters and Investigation of Their Interaction with Photorhabdus asymbiotica Lectin (PHL). AB - Photorhabdus asymbiotica is a gram-negative bacterium that is not only as effective an insect pathogen as other members of the genus, but it also causes serious diseases in humans. The recently identified lectin PHL from P. asymbiotica verifiably modulates an immune response of humans and insects, which supports the idea that the lectin might play an important role in the host pathogen interaction. Dimeric PHL contains up to seven l-fucose-specific binding sites per monomer, and in order to target multiple binding sites of PHL, alpha-l fucoside-containing di-, tri- and tetravalent glycoclusters were synthesized. Methyl gallate and pentaerythritol were chosen as multivalent scaffolds, and the fucoclusters were built from the above-mentioned cores by coupling with different oligoethylene bridges and propargyl alpha-l-fucosides using 1,3-dipolar azide alkyne cycloaddition. The interaction between fucoside derivates and PHL was investigated by several biophysical and biological methods, ITC and SPR measurements, hemagglutination inhibition assay, and an investigation of bacterial aggregation properties were carried out. Moreover, details of the interaction between PHL and propargyl alpha-l-fucoside as a monomer unit were revealed using X-ray crystallography. Besides this, the interaction with multivalent compounds was studied by NMR techniques. The newly synthesized multivalent fucoclusters proved to be up to several orders of magnitude better ligands than the natural ligand, l-fucose. PMID- 29341314 TI - Chronic sleep reduction in adolescents-clinical cut-off scores for the Chronic Sleep Reduction Questionnaire (CSRQ). AB - The Chronic Sleep Reduction Questionnaire is a validated questionnaire that measures symptoms of prolonged insufficient and/or poor sleep and therefore accounts for individuals' sleep need and sleep debt. This study extends its psychometric properties by providing cut-off scores, using a matched sample of 298 healthy adolescents (15.38 +/- 1.63 years, 37.9% male, mean Chronic Sleep Reduction Questionnaire score: 32.98 +/- 6.51) and 298 adolescents with insomnia/delayed sleep-wake phase disorder (15.48 +/- 1.62 years; 37.9% male, mean Chronic Sleep Reduction Questionnaire score: 42.59 +/- 7.06). We found an area under the curve of 0.84 (95% confidence interval: 0.81-0.87). Cut-off scores for optimal sensitivity, optimal specificity and based on Youden's criterion are provided. These cut-off scores are highly relevant for use of the Chronic Sleep Reduction Questionnaire in future studies and clinical practice. PMID- 29341315 TI - Use of quantitative real-time PCR to determine viability of Streptococcus equi subspecies equi in respiratory secretions from horses with strangles. AB - BACKGROUND: In recent years, molecular approaches have been able to characterise the viability of equine upper respiratory tract pathogens using absolute molecular quantitation as well as detection of transcripts for virulence genes. OBJECTIVES: The objective of this study was to investigate molecular surrogates for S. equi subspecies equi (S. equi) viability in biological samples from horses with strangles. STUDY DESIGN: Retrospective cross-sectional study. METHODS: S. equi culture-positive and culture-negative upper airway secretions were assessed by qPCR at the genomic (gDNA) and complimentary DNA (cDNA) level for various target genes (SeM, SEQ2190, eqbE and szpSe). Absolute quantitation was performed using standard curves, and the results were expressed as number of S. equi target genes per MUl of gDNA or cDNA. Additionally, the presence or absence of S. equi gene expression for the various target genes was assessed and compared with the culture results. RESULTS: While all 21 culture-positive samples tested S. equiqPCR positive, up to 43.7 and 18.9% of 64 culture-negative samples tested qPCR positive at the gDNA and cDNA level, respectively. Significant differences in absolute quantitation for S. equi at the gDNA level were found between culture positive and culture-negative samples. When absolute quantitation of S. equi target genes at the gDNA level was assessed with the presence or absence of transcripts, there was a significantly higher S. equi target gene number in samples with expression of transcripts compared with samples with no expression of transcripts. MAIN LIMITATIONS: The lack of standardisation of samples collected in the field and the delay from sample collection to samples processing may have negatively affected the cultivability of S. equi and mRNA quality. CONCLUSIONS: Molecular viability for S. equi can be investigated by determining absolute quantitation and/or by detecting mRNA for specific target genes. However, veterinarians have to be cautioned that any qPCR-positive result for S. equi needs to be taken seriously and trigger biosecurity protocols aimed at reducing spread. PMID- 29341316 TI - Deferoxamine promotes mesenchymal stem cell homing in noise-induced injured cochlea through PI3K/AKT pathway. AB - OBJECTIVE: Over 5% of the world's population suffers from disabling hearing loss. Stem cell homing in target tissue is an important aspect of cell-based therapy, which its augmentation increases cell therapy efficiency. Deferoxamine (DFO) can induce the Akt activation, and phosphorylation status of AKT (p-AKT) upregulates CXC chemokine receptor-4 (CXCR4) expression. We examined whether DFO can enhance mesenchymal stem cells (MSCs) homing in noise-induced damaged cochlea by PI3K/AKT dependent mechanism. MATERIALS AND METHODS: Mesenchymal stem cells were treated with DFO. AKT, p-AKT protein and hypoxia inducible factor 1- alpha (HIF-1alpha) and CXCR4 gene and protein expression was evaluated by RT- PCR and Western blot analysis. For in vivo assay, rats were assigned to control, sham, noise exposure groups without any treatment or receiving normal, DFO-treated and DFO +LY294002 (The PI3K inhibitor)-treated MSCs. Following chronic exposure to 115 dB white noise, MSCs were injected into the rat cochlea through the round window. Number of Hoechst- labelled cells was determined in the endolymph after 24 hours. RESULTS: Deferoxamine increased P-AKT, HIF-1alpha and CXCR4 expression in MSCs compared to non-treated cells. DFO pre-conditioning significantly increased the homing ability of MSCs into injured ear compared to normal MSCs. These effects of DFO were blocked by LY294002. CONCLUSIONS: Pre-conditioning of MSCs by DFO before transplantation can improve stem cell homing in the damaged cochlea through PI3K/AKT pathway activation. PMID- 29341317 TI - Apoptosis induction in K562 human myelogenous leukaemia cells is connected to the modulation of Wnt/beta-catenin signalling by BHX, a novel pyrazoline derivative. AB - OBJECTIVES: The goal of this study was to explore the effects of BHX on human chronic myeloid leukaemia (CML) cells and to elucidate the underlying molecular mechanism. MATERIALS AND METHODS: CML cell line K562 cells were treated with BHX. The effects of BHX on cell proliferation, apoptosis and cell cycle were detected. Subsequently, the caspase, ATP activity, Ca2+ , ROS and mitochondrial membrane potential (MMP) levels treated with various concentrations of BHX were analysed. The variation of relevant proteins and genes was detected. Further, toxicity of BHX on peripheral blood cells, bone marrow-nucleated cells (BMNC) and organ index were investigated on mice. RESULTS: Results showed that BHX suppressed K562 cell proliferation in a dose-dependent manner and induced apoptosis and G0/G1 phase arrest. BHX induced mitochondria-mediated apoptosis, which was associated with downregulation of MMP, activation of caspase-3 and caspase-9, generation of intracellular ROS and elevation of Ca2+ in K562 cells. In treated cells, ATP levels were decreased, expression of total beta-catenin, phosphorylated beta catenin and beta-catenin in the nucleus was decreased, and expression of cell cycle-related proteins was decreased. Further analysis revealed that BHX lowered the transcriptional level of beta-catenin. Lastly, BHX treatment significantly reduced the number of white blood cells, but had no effect on BMNC and organ index. CONCLUSIONS: These findings provide further insight into the potential use of BHX as an anti-cancer agent against human leukaemia. PMID- 29341318 TI - Cognitive trajectories and spectrum of neuropathology in SuperAgers: The first 10 cases. AB - On average, memory capacity is significantly higher in populations of 50-60 year olds than in populations of 80 year olds. We define SuperAgers as individuals 80 or older whose episodic memory capacity is at least as good as that of cognitively average individuals in their 50s and 60s. SuperAgers therefore have memory capacity that is superior for age. Previous work showed that SuperAgers have greater cortical volumes and greater resistance to age-related cortical atrophy than "cognitively average" individuals of the same age. Here we report on the cognitive, personality, and neuropathologic characteristics of the first 10 autopsy cases in the Northwestern SuperAging Program. During the follow-up period, seven SuperAgers maintained episodic memory performance within or above the average range for 50-65 year-old norms and all 10 SuperAgers maintained episodic memory scores within normal limits for their own age. Openness to experience scores tended to be high on the NEO-PI-R measure of personality. The 10 autopsy specimens showed variable findings within the spectrum of Alzheimer pathology. The hippocampus and entorhinal cortex contained neurofibrillary degeneration mostly in the Braak II-III stages. However, even these limbic areas contained many healthy appearing neurons and the neocortex was generally free of neurofibrillary degeneration. In contrast, neocortical areas in at least five of the cases contained moderate to high densities of neuritic plaques. These findings need to be placed in context by comparing them to the neuropathology of cognitively average individuals of the same age. Future research on SuperAgers is likely to offer insights into factors that either prevent the emergence of involutional changes in the brain or that makes cognitive function more resistant to their consequences. PMID- 29341319 TI - Crosslinking of Semiaromatic Polyesters toward High-Temperature Shape Memory Polymers with Full Recovery. AB - In this work, high-temperature shape memory polymers are realized by end-group crosslinking of the semiaromatic polyesters polyethylene terephthalate as well as polybutylene terephthalate. Both networks exhibit trigger temperatures distinctly higher than 200 degrees C and excellent shape memory properties such as storable strains of 200%, full fixity of the applied strain in the temporary shape, and full recovery of the permanent shape. PMID- 29341320 TI - Spatiotemporal, metabolic, and therapeutic characterization of altered functional connectivity in major depressive disorder. AB - Although imbalanced functional integration has been increasingly reported in major depressive disorder (MDD), there still lacks a general framework to characterize common characteristic and origin shared by the integrative disturbances. Here we examined spatial selectivity, temporal uniqueness, metabolic basis, and therapeutic response of altered functional connectivity (FC) in MDD by analyzing both cross-sectional and longitudinal multimodal functional magnetic resonance imaging data from 35 patients and 34 demographically matched healthy controls. First, based on a voxel-wise, data-driven, graph-based degree centrality approach, the bilateral anterior cingulate gyri, middle frontal gyri and superior frontal gyri, and the right parahippocampal gyrus were robustly identified to show decreased FC in MDD. Further spatiotemporal analyses revealed that these regions exhibited hub-like features and were selectively located in limbic and default mode networks spatially and, relative to other areas in the brain, exhibited unique, frequency-dependent oscillation power (stronger within 0.01-0.027 Hz and weaker within 0.027-0.073 Hz) and less dynamical variability of whole-brain FC profiles temporally. Moreover, a cross-modality fusion analysis showed that all MDD-related FC impairments were associated with reduced cerebral blood flow (CBF); however, there existed multiple regions that showed reduced CBF but had intact FC in the patients, which resulted in a decreased FC-CBF coupling and implied an earlier emergence of reduced CBF than impaired FC in MDD. Finally, the disrupted FC in MDD gradually recovered over the course of drug treatment (2 and 12 weeks). Altogether, these findings could help establish a general framework to provide mechanistic insights into integrative dysfunctions in MDD. PMID- 29341321 TI - Interleukin-6 contributes to chemoresistance in MDA-MB-231 cells via targeting HIF-1alpha. AB - Chemoresistance is a critical challenge in the clinical treatment of triple negative breast cancer (TNBC). It has been well documented that inflammatory mediators from tumor microenvironment are involved in the pathogenesis of TNBC and might be related to chemoresistance of cancer cells. In this study, the contribution of interleukin-6 (IL-6), one of the principal oncogenic molecules, in chemoresistance of a TNBC cell line MDA-MB-231 was first investigated. The results showed that IL-6 treatment could induce upregulation of HIF-1alpha via the activation of STAT3 in MDA-MB-231 cells, which consequently contributed to its effect against chemotherapeutic drug-induced cytotoxicity and cell apoptosis. However, knockdown of HIF-1alpha attenuated such effect via affecting the expressions of apoptosis-related molecules as Bax and Bcl-2 and drug transporters as P-gp and MRP1. This study indicated that targeting at IL-6/HIF-1alpha signaling pathway might be an effective strategy to overcome chemoresistance in TNBC therapy. PMID- 29341322 TI - Isthmus sites identified by Ripple Mapping are usually anatomically stable: A novel method to guide atrial substrate ablation? AB - BACKGROUND: Postablation reentrant ATs depend upon conducting isthmuses bordered by scar. Bipolar voltage maps highlight scar as sites of low voltage, but the voltage amplitude of an electrogram depends upon the myocardial activation sequence. Furthermore, a voltage threshold that defines atrial scar is unknown. We used Ripple Mapping (RM) to test whether these isthmuses were anatomically fixed between different activation vectors and atrial rates. METHODS: We studied post-AF ablation ATs where >1 rhythm was mapped. Multipolar catheters were used with CARTO Confidense for high-density mapping. RM visualized the pattern of activation, and the voltage threshold below which no activation was seen. Isthmuses were characterized at this threshold between maps for each patient. RESULTS: Ten patients were studied (Map 1 was AT1; Map 2: sinus 1/10, LA paced 2/10, AT2 with reverse CS activation 3/10; AT2 CL difference 50 +/- 30 ms). Point density was similar between maps (Map 1: 2,589 +/- 1,330; Map 2: 2,214 +/- 1,384; P = 0.31). RM activation threshold was 0.16 +/- 0.08 mV. Thirty-one isthmuses were identified in Map 1 (median 3 per map; width 27 +/- 15 mm; 7 anterior; 6 roof; 8 mitral; 9 septal; 1 posterior). Importantly, 7 of 31 (23%) isthmuses were unexpectedly identified within regions without prior ablation. AT1 was treated following ablation of 11/31 (35%) isthmuses. Of the remaining 20 isthmuses, 14 of 16 isthmuses (88%) were consistent between the two maps (four were inadequately mapped). Wavefront collision caused variation in low voltage distribution in 2 of 16 (12%). CONCLUSIONS: The distribution of isthmuses and nonconducting tissue within the ablated left atrium, as defined by RM, appear concordant between rhythms. This could guide a substrate ablative approach. PMID- 29341323 TI - Test-retest reliability and longitudinal analysis of automated hippocampal subregion volumes in healthy ageing and Alzheimer's disease populations. AB - The hippocampal formation is a complex brain structure that is important in cognitive processes such as memory, mood, reward processing and other executive functions. Histological and neuroimaging studies have implicated the hippocampal region in neuropsychiatric disorders as well as in neurodegenerative diseases. This highly plastic limbic region is made up of several subregions that are believed to have different functional roles. Therefore, there is a growing interest in imaging the subregions of the hippocampal formation rather than modelling the hippocampus as a homogenous structure, driving the development of new automated analysis tools. Consequently, there is a pressing need to understand the stability of the measures derived from these new techniques. In this study, an automated hippocampal subregion segmentation pipeline, released as a developmental version of Freesurfer (v6.0), was applied to T1-weighted magnetic resonance imaging (MRI) scans of 22 healthy older participants, scanned on 3 separate occasions and a separate longitudinal dataset of 40 Alzheimer's disease (AD) patients. Test-retest reliability of hippocampal subregion volumes was assessed using the intra-class correlation coefficient (ICC), percentage volume difference and percentage volume overlap (Dice). Sensitivity of the regional estimates to longitudinal change was estimated using linear mixed effects (LME) modelling. The results show that out of the 24 hippocampal subregions, 20 had ICC scores of 0.9 or higher in both samples; these regions include the molecular layer, granule cell layer of the dentate gyrus, CA1, CA3 and the subiculum (ICC > 0.9), whilst the hippocampal fissure and fimbria had lower ICC scores (0.73 0.88). Furthermore, LME analysis of the independent AD dataset demonstrated sensitivity to group and individual differences in the rate of volume change over time in several hippocampal subregions (CA1, molecular layer, CA3, hippocampal tail, fissure and presubiculum). These results indicate that this automated segmentation method provides a robust method with which to measure hippocampal subregions, and may be useful in tracking disease progression and measuring the effects of pharmacological intervention. PMID- 29341324 TI - Beta testing the potential link between the alpha antagonist tamsulosin and dementia. PMID- 29341325 TI - Characterization of Adrenal Lesions on Unenhanced MRI Using Texture Analysis: A Machine-Learning Approach. AB - BACKGROUND: Adrenal adenomas (AA) are the most common benign adrenal lesions, often characterized based on intralesional fat content as either lipid-rich (LRA) or lipid-poor (LPA). The differentiation of AA, particularly LPA, from nonadenoma adrenal lesions (NAL) may be challenging. Texture analysis (TA) can extract quantitative parameters from MR images. Machine learning is a technique for recognizing patterns that can be applied to medical images by identifying the best combination of TA features to create a predictive model for the diagnosis of interest. PURPOSE/HYPOTHESIS: To assess the diagnostic efficacy of TA-derived parameters extracted from MR images in characterizing LRA, LPA, and NAL using a machine-learning approach. STUDY TYPE: Retrospective, observational study. POPULATION/SUBJECTS/PHANTOM/SPECIMEN/ANIMAL MODEL: Sixty MR examinations, including 20 LRA, 20 LPA, and 20 NAL. FIELD STRENGTH/SEQUENCE: Unenhanced T1 weighted in-phase (IP) and out-of-phase (OP) as well as T2 -weighted (T2 -w) MR images acquired at 3T. ASSESSMENT: Adrenal lesions were manually segmented, placing a spherical volume of interest on IP, OP, and T2 -w images. Different selection methods were trained and tested using the J48 machine-learning classifiers. STATISTICAL TESTS: The feature selection method that obtained the highest diagnostic performance using the J48 classifier was identified; the diagnostic performance was also compared with that of a senior radiologist by means of McNemar's test. RESULTS: A total of 138 TA-derived features were extracted; among these, four features were selected, extracted from the IP (Short_Run_High_Gray_Level_Emphasis), OP (Mean_Intensity and Maximum_3D_Diameter), and T2 -w (Standard_Deviation) images; the J48 classifier obtained a diagnostic accuracy of 80%. The expert radiologist obtained a diagnostic accuracy of 73%. McNemar's test did not show significant differences in terms of diagnostic performance between the J48 classifier and the expert radiologist. DATA CONCLUSION: Machine learning conducted on MR TA-derived features is a potential tool to characterize adrenal lesions. LEVEL OF EVIDENCE: 4 Technical Efficacy: Stage 2 J. Magn. Reson. Imaging 2018. PMID- 29341326 TI - Elevated leukocyte count in cerebrospinal fluid of patients with chronic inflammatory demyelinating polyneuropathy. AB - Cerebrospinal fluid (CSF) examination is often part of the diagnostic work-up of a patient suspected of having chronic inflammatory demyelinating polyneuropathy (CIDP). According to the European Federation of Neurological Societies and the Peripheral Nerve Society (EFNS/PNS) criteria, an elevated protein level without pleocytosis (leukocytes <10 cells/ul) is supportive of the diagnosis CIDP. It is unclear how many CSF leukocytes are compatible with the diagnosis CIDP and how extensive the diagnostic work-up should be in patients with a demyelinating neuropathy and pleocytosis. We performed a retrospective study at two tertiary neuromuscular referral clinics and identified 14 out of 273 (6%) patients with CIDP with elevated CSF leukocytes (>=10 cells/ul). All these patients met the EFNS/PNS criteria for definite or probable CIDP. Eight patients (57%) presented with a subacute onset and four patients with an antecedent infection. Most patients responded well to therapy, and eight patients are currently in remission. In four patients, lumbar puncture was repeated. A spontaneous decrease in leukocytes before start of treatment was found in three patients. Our data indicate that a mild to moderate pleocytosis in CSF does not exclude the diagnosis of CIDP, especially in patients with a subacute onset of disease. PMID- 29341329 TI - Violence and child mental health in Brazil: The Itaborai Youth Study methods and findings. AB - OBJECTIVES: To demonstrate a study design that could be useful in low-resource and violent urban settings and to estimate the prevalence of child violence exposure (at home, community, and school) and child mental health problems in a low-income medium-size city. METHODS: The Itaborai Youth Study is a Norway-Brazil collaborative longitudinal study conducted in Itaborai city (n = 1409, 6-15 year olds). A 3-stage probabilistic sampling plan (random selection of census units, eligible households, and target child) generated sampling weights that were used to obtain estimates of population prevalence rates. RESULTS: Study strengths include previous pilot study and focus groups (testing procedures and comprehension of questionnaire items), longitudinal design (2 assessment periods with a mean interval of 12.9 months), high response rate (>80%), use of standardized instruments, different informants (mother and adolescent), face-to face interviews to avoid errors due to the high frequency of low-educated respondents, and information gathered on a variety of potential predictors and protective factors. Children and adolescents presented relevant levels of violence exposure and clinical mental health problems. CONCLUSIONS: Prevalence estimates are probably valid to other Brazilian low-income medium-size cities due to similarities in terms of precarious living conditions. Described study methods could be useful in other poor and violent world regions. PMID- 29341328 TI - Histiocytosis - cutaneous manifestations of hematopoietic neoplasm and non neoplastic histiocytic proliferations. AB - Histiocytoses are rare disorders characterized by the accumulation of cells derived from macrophages, dendritic cells or monocytes in various tissues. There is a broad spectrum of disease manifestations with some subtypes commonly showing skin lesions, while in others, the skin is rarely involved. Here, we describe cutaneous manifestations of histiocytoses belonging to the Langerhans group (L group), the group of cutaneous and mucocutaneous histiocytoses (C group) and the group of Rosai-Dorfman disease (RDD) and related histiocytoses (R group) according to the current classification. Characteristic clinical presentations noted were a rust-brown colour or xanthomatous aspect in many cases of histiocytoses. Histological criteria for differentiation are described. Immunohistochemistry shows positivity for S100 and CD1a in Langerhans-cell histiocytoses (LHCH) of the L group, while CD68 positivity with S100 and CD1a negativity are typical in histiocytoses of the C group of cutaneous and mucocutaneous histiocytoses. RDD in the R group shows positivity for S100 and CD68, while CD1a is negative. We further review the pathogenesis of LHCH based on insights on the central role of the mitogen-activated protein (MAPK) kinase pathway. Common mutations in various histiocytic populations of diverse ontogeny and at different stages of differentiation may be responsible for the diverse clinical picture of this neoplastic entity. For histiocytoses of the C group and R group, a reactive origin is discussed with the exception of the disseminated form of juvenile xanthogranuloma. We suggest exploring the role of an origin from skin residing histiocytes for the isolated cutaneous manifestation in some types. With regard to therapeutic options, skin-directed therapies are the first choice in limited disease, while systemic chemotherapy has traditionally been used in extensive disease. In Langerhans-cell histiocytoses and related entities, therapy by BRAF inhibition has led to a breakthrough especially in patients with an activation of the MAPK pathway. PMID- 29341327 TI - Involvement of the dorsal hippocampus in expression and extinction of cocaine induced conditioned place preference. AB - A key aspect of substance abuse is that drug taking often occurs in a specific context. As a consequence, exposure to drug-associated contexts can trigger cravings and relapse, even after long periods of abstinence. Although many studies have demonstrated that the hippocampus is critical for developing and retrieving contextual and spatial memories, comparatively little is known about the role of the hippocampus in acquiring and inhibiting memories involving contexts and drugs of abuse. We examined the effects of hippocampal inactivation on expression of cocaine-induced conditioned place preference (CPP) after initial acquisition or extinction of CPP in C57BL/6 mice. During acquisition of CPP, distinct tactile cues were paired with cocaine (20 mg kg-1 , intraperitoneal, CS+) and different tactile cues were paired with saline (CS-) on alternate days. Groups differed in whether the CS+ and CS- cues were presented in the same large space (one-compartment procedure) or distinct small spaces (two-compartment procedure), as previous findings demonstrate that a two-compartment configuration facilitates acquisition and attenuates extinction of a cocaine-induced CPP. Microinjection of the GABAA agonist, muscimol, into the dorsal hippocampus impaired (1) retrieval of a place preference after acquisition, (2) extinction of a place preference, and (3) retrieval of extinction. These effects differed depending on the spatial configuration during acquisition or extinction, suggesting that the dorsal hippocampus may differentially modulate drug seeking during retrieval and extinction of CPP. PMID- 29341330 TI - Real-Time and High-Resolution Bioimaging with Bright Aggregation-Induced Emission Dots in Short-Wave Infrared Region. AB - Fluorescence imaging in the spectral region beyond the conventional near-infrared biological window (700-900 nm) can theoretically afford high resolution and deep tissue penetration. Although some efforts have been devoted to developing a short wave infrared (SWIR; 900-1700 nm) imaging modality in the past decade, long wavelength biomedical imaging is still suboptimal owing to the unsatisfactory materials properties of SWIR fluorophores. Taking advantage of organic dots based on an aggregation-induced emission luminogen (AIEgen), herein microscopic vasculature imaging of brain and tumor is reported in living mice in the SWIR spectral region. The long-wavelength emission of AIE dots with certain brightness facilitates resolving brain capillaries with high spatial resolution (~3 um) and deep penetration (800 um). Owning to the deep penetration depth and real-time imaging capability, in vivo SWIR microscopic angiography exhibits superior resolution in monitoring blood-brain barrier damage in mouse brain, and visualizing enhanced permeability and retention effect in tumor sites. Furthermore, the AIE dots show good biocompatibility, and no noticeable abnormalities, inflammations or lesions are observed in the main organs of the mice. This work will inspire new insights on development of advanced SWIR techniques for biomedical imaging. PMID- 29341331 TI - The relationship between thalamic GABA content and resting cortical rhythm in neuropathic pain. AB - Recurrent thalamocortical connections are integral to the generation of brain rhythms and it is thought that the inhibitory action of the thalamic reticular nucleus is critical in setting these rhythms. Our work and others' has suggested that chronic pain that develops following nerve injury, that is, neuropathic pain, results from altered thalamocortical rhythm, although whether this dysrhythmia is associated with thalamic inhibitory function remains unknown. In this investigation, we used electroencephalography and magnetic resonance spectroscopy to investigate cortical power and thalamic GABAergic concentration in 20 patients with neuropathic pain and 20 pain-free controls. First, we found thalamocortical dysrhythmia in chronic orofacial neuropathic pain; patients displayed greater power than controls over the 4-25 Hz frequency range, most marked in the theta and low alpha bands. Furthermore, sensorimotor cortex displayed a strong positive correlation between cortical power and pain intensity. Interestingly, we found no difference in thalamic GABA concentration between pain subjects and control subjects. However, we demonstrated significant linear relationships between thalamic GABA concentration and enhanced cortical power in pain subjects but not controls. Whilst the difference in relationship between thalamic GABA concentration and resting brain rhythm between chronic pain and control subjects does not prove a cause and effect link, it is consistent with a role for thalamic inhibitory neurotransmitter release, possibly from the thalamic reticular nucleus, in altered brain rhythms in individuals with chronic neuropathic pain. PMID- 29341333 TI - Bronsted Base-Catalyzed Umpolung Intramolecular Cyclization of Alkynyl Imines. AB - A novel "umpolung" intramolecular cyclization of alkynyl imines, in which the electrophilic imine sp2 -carbon formally serves as a nucleophilic site, was developed under Bronsted base catalysis. The reaction involves the unprecedented catalytic generation of alpha-aminoester enolates from alpha-iminoesters via the 1,2-addition of the anion of a secondary phosphite to an imine moiety followed by the [1,2]-rearrangement of a dialkoxyphosphoryl moiety from carbon to nitrogen, which is a formal umpolung process, and the intramolecular addition to an alkyne. This is a rare example of a [1,2]-rearrangement of a dialkoxyphosphoryl moiety from carbon to nitrogen to generate an alpha-amino carbanion and the first catalytic carbon-carbon bond forming reaction utilizing the resulting carbanion as a nucleophile. PMID- 29341332 TI - Cornea-Derived Mesenchymal Stromal Cells Therapeutically Modulate Macrophage Immunophenotype and Angiogenic Function. AB - Macrophages are crucial drivers of inflammatory corneal neovascularization and thus are potential targets for immunomodulatory therapies. We hypothesized that therapeutic use of cornea-derived mesenchymal stromal cells (cMSCs) may alter the function of macrophages. We found that cMSCs can modulate the phenotype and angiogenic function of macrophages. In vitro, cMSCs induce apoptosis of macrophages while preferentially promoting a distinct CD14hi CD16hi CD163hi CD206hi immunophenotype that has significantly reduced angiogenic effects based on in vitro angiogenesis assays. In vivo, application of cMSCs to murine corneas after injury leads to reduced macrophage infiltration and higher expression of CD206 in macrophages. Macrophages cocultured ("educated") by cMSCs express significantly higher levels of anti-angiogenic and anti-inflammatory factors compared with control macrophages. In vivo, injured corneas treated with cMSC educated macrophages demonstrate significantly less neovascularization compared with corneas treated with control macrophages. Knocking down the expression of pigment epithelial derived factor (PEDF) in cMSCs significantly abrogates its modulating effects on macrophages, as shown by the reduced rate of apoptosis, decreased expression of sFLT-1/PEDF, and increased expression of vascular endothelial growth factor-A in the cocultured macrophages. Similarly, cMSCs isolated from PEDF knockout mice are less effective compared with wild-type cMSCs at inhibiting macrophage infiltration when applied to wild-type corneas after injury. Overall, these results demonstrate that cMSCs therapeutically suppress the angiogenic capacity of macrophages and highlight the role of cMSC secreted PEDF in the modulation of macrophage phenotype and function. Stem Cells 2018;36:775-784. PMID- 29341334 TI - Incidence and prognostic impact of cytogenetic aberrations in patients with systemic mastocytosis. AB - The clinical behavior of systemic mastocytosis (SM) is strongly associated with activating mutations in KIT (D816V in >80% of cases), with the severity of the phenotype influenced by additional somatic mutations, for example, in SRSF2, ASXL1, or RUNX1. Complex molecular profiles are frequently associated with the presence of an associated hematologic neoplasm (AHN) and an unfavorable clinical outcome. However, little is known about the incidence and prognostic impact of cytogenetic aberrations. We analyzed cytogenetic and molecular characteristics of 109 patients (KIT D816V+, n = 102, 94%) with indolent (ISM, n = 26) and advanced SM (n = 83) with (n = 73, 88%) or without AHN. An aberrant karyotype was identified in SM-AHN (16/73, 22%) patients only. In patients with an aberrant karyotype, additional somatic mutations were identified in 12/16 (75%) patients. Seven of 10 (70%) patients with a poor-risk karyotype, for example, monosomy 7 or complex karyotype, and 1/6 (17%) patients with a good-risk karyotype progressed to secondary acute myeloid leukemia (n = 7) or mast cell leukemia (n = 1) within a median of 40 months (range 2-190, P = .04). In advanced SM, the median overall survival (OS) of poor-risk karyotype patients was significantly shorter than in good-risk/normal karyotype patients (4 vs 39 months; hazard ratio 11.7, 95% CI 5.0-27.3; P < .0001). Additionally, the shortened OS in patients with poor-risk karyotype was independent from the mutation status. In summary, a poor-risk karyotype is an independent prognostic variable in advanced SM. Cytogenetic and molecular analyses should be routinely performed in all patients with advanced SM +/- AHN because these investigations greatly support prognostication and treatment decisions. PMID- 29341335 TI - Osteogenic efficacy of BMP-2 mixed with hydrogel and bone substitute in peri implant dehiscence defects in dogs: 16 weeks of healing. AB - OBJECTIVES: The objective of this study was to determine the effect of bone morphogenetic protein-2 (BMP-2) mixed with either polyethylene glycol hydrogel or synthetic bone substitute (SBS) on new bone formation in peri-implant dehiscence defects after 16 weeks of healing. MATERIALS AND METHODS: A guided bone regeneration procedure was performed in box-type peri-implant defects that were surgically prepared in six beagle dogs. The following four experimental groups were used (i) control (no graft), (ii) SBS+hydrogel, (iii) SBS+BMP-2/hydrogel and (iv) BMP-2/SBS+hydrogel. Volumetric analysis using micro-computed tomography and histomorphometric analysis was performed at 16 weeks post-operatively. RESULTS: The amount of new bone and the total augmented volume did not differ significantly between both BMP-treated groups and the SBS+hydrogel group (p > .05). Likewise, no histometric differences were observed in the values of new bone area and bone-to-implant contact ratio among the three augmentation groups (new bone area: 0.06 +/- 0.08, 0.19 +/- 0.20, 0.48 +/- 0.37 and 0.56 +/- 0.60 mm2 [mean +/- standard deviation] in groups 1-4, respectively; bone-to-implant contact: 9.44 +/- 11.51%, 19.91 +/- 15.19%, 46.31 +/- 29.82% and 42.58 +/- 26.27% in groups 1-4, respectively). CONCLUSION: The osteogenic efficacy of BMP-2 on the regeneration of peri-implant bone defects was not detectable after 16 weeks regardless of the carrier materials. PMID- 29341336 TI - Identification of perioperative pulmonary aspiration in children using quality assurance and hospital administrative billing data. AB - BACKGROUND: Perioperative aspiration is a rare but potentially devastating complication, occurring in 1-10 per 10 000 anesthetics based on studies of quality assurance databases. Quality assurance reporting is known to underestimate the incidence of adverse outcomes, but few large studies use supplementary data sources. This study aims to identify the incidence of and risk factors for perioperative aspiration in children using quality assurance data supplemented by administrative billing records, and to examine the utility of billing data as a supplementary data source. METHODS: Aspiration events for children receiving anesthesia at a tertiary care pediatric hospital between 2008 and 2014 were identified using (i) a perioperative quality assurance database and (ii) hospital administrative billing records with International Classification of Diseases, Ninth Revision Clinical Modification coded diagnoses of aspiration. Records were subject to review by pediatric anesthesiologists. Following identification of all aspiration events, the incidence of perioperative aspiration was calculated and risk factors were assessed. RESULTS: 47 272 anesthetic cases were evaluated over 7 years. The quality assurance database identified 20 cases of perioperative aspiration occurring in surgical inpatients, same-day admissions, and outpatients. Using hospital administrative data (which excludes outpatients with shorter than a 24-hour stay), 9 cases of perioperative aspiration were identified of which 6 had not been found through quality assurance data. Overall, International Classification of Diseases, Ninth Revision coding demonstrated a positive predictive value of 94.5% for any aspiration event; however, positive predictive value was <4% for perioperative aspiration. A total incidence of 5.5 perioperative aspirations per 10 000 (95% CI: 3.7-8.0 per 10 000) anesthetics was found. CONCLUSION: Quality assurance data offer an efficient way to measure the incidence of rare events, but may underestimate perioperative complications. International Classification of Diseases, Ninth Revision codes for aspiration used as a secondary data source were nonspecific for perioperative aspiration, but when combined with record review yielded a 30% increase in identified cases of aspiration over quality assurance data alone. The use of administrative data therefore holds potential for supplementing quality assurance studies of rare complications. PMID- 29341337 TI - Endoscopic endonasal approach for sinonasal and anterior skull base malignancies in the elderly. AB - BACKGROUND: The purpose of this study was to report the outcomes of endoscopic transnasal resection for sinonasal and anterior skull-base cancers in elderly patients. METHODS: A retrospective review was performed. The patients were divided into 2 groups, <70 years old and >=70 years old and compared by univariate analysis. Prognostic factors were evaluated with a multivariate analysis. Survival rates were also calculated. RESULTS: Two hundred three elderly patients and 397 younger patients were enrolled in this study. The elderly patients reported lower survival rates than the younger patients. When melanoma and esthesioneuroblastoma were censored, the disease-specific survival (DSS) and recurrence-free survival (RFS) were similar. Complication rates were 17.5% without any statistical significance between the groups. Multivariate analysis revealed that histology, stage, surgical margins, and surgical approaches were independent predictors of survival in elderly patients. CONCLUSION: The endoscopic transnasal approach reported low mortality and morbidity rates also in geriatric patients, and age itself is not to be considered as a contraindication. PMID- 29341338 TI - Human teeth biobank: Microbiological analysis of the teeth storage solution. AB - The cross-infections may occur during handling of dental elements, affecting the health of dental practitioners and researchers. This study aimed to analyze the influence of the storage medium temperature on the bacterial contingent of the human teeth used for research purposes. Thirty human teeth were donated to the Human Teeth Biobank immediately after extraction. The teeth were cleaned with tap water and neutral soap. The teeth were randomly distributed according to the temperature of the storage solution (deionized water): at 4 degrees C (refrigerator) or at -10 degrees C (freezer) and were stored individually in sterile vials during 60 days. After this period, a microbiological analysis (CFU/mL) of the storage solutions was performed and teeth were submitted to SEM analysis. Data were analyzed by Kruskal-Wallis test followed by Dunn's post-test (p <= .05). Total aerobic bacteria ranged from 5.8 to 8.4 log10 CFU/mL for refrigerated solution and from 1.9 to 8.5 log10 CFU/mL for frozen solution. No statistical differences were found between the storage solutions (p > .05). The counts of Streptococcus spp., Lactobacillus spp., and Staphylococcus spp. were similar for both storage solutions (p > .05). SEM analysis showed spiral- and rod shaped bacteria attached on teeth stored under 4 degrees C, which may suggest the presence of Treponema spp. and Lactobacillus spp. Similar morphological forms were found on teeth stored under -10 degrees C. A biofilm organized in honeycomb like form was found in the frozen teeth. Cocci were eventually found in all the samples. It was concluded that bacterial growth and survival were not influenced by the temperature of the teeth storage solution. PMID- 29341339 TI - Immunomodulation By Therapeutic Mesenchymal Stromal Cells (MSC) Is Triggered Through Phagocytosis of MSC By Monocytic Cells. AB - Mesenchymal stem or stromal cells (MSC) are under investigation as a potential immunotherapy. MSC are usually administered via intravenous infusion, after which they are trapped in the lungs and die and disappear within a day. The fate of MSC after their disappearance from the lungs is unknown and it is unclear how MSC realize their immunomodulatory effects in their short lifespan. We examined immunological mechanisms determining the fate of infused MSC and the immunomodulatory response associated with it. Tracking viable and dead human umbilical cord MSC (ucMSC) in mice using Qtracker beads (contained in viable cells) and Hoechst33342 (staining all cells) revealed that viable ucMSC were present in the lungs immediately after infusion. Twenty-four hours later, the majority of ucMSC were dead and found in the lungs and liver where they were contained in monocytic cells of predominantly non-classical Ly6Clow phenotype. Monocytes containing ucMSC were also detected systemically. In vitro experiments confirmed that human CD14++ /CD16- classical monocytes polarized toward a non classical CD14++ CD16+ CD206+ phenotype after phagocytosis of ucMSC and expressed programmed death ligand-1 and IL-10, while TNF-alpha was reduced. ucMSC-primed monocytes induced Foxp3+ regulatory T cell formation in mixed lymphocyte reactions. These results demonstrate that infused MSC are rapidly phagocytosed by monocytes, which subsequently migrate from the lungs to other body sites. Phagocytosis of ucMSC induces phenotypical and functional changes in monocytes, which subsequently modulate cells of the adaptive immune system. It can be concluded that monocytes play a crucial role in mediating, distributing, and transferring the immunomodulatory effect of MSC. Stem Cells 2018;36:602-615. PMID- 29341340 TI - Bias from restricting to live births when estimating effects of prescription drug use on pregnancy complications: A simulation. AB - PURPOSE: Administrative claim databases are increasingly being used to study the safety of medication exposures during pregnancy. These studies are restricted to live births due to a reliance on algorithms for estimating gestational age that are based on codes associated with live delivery. Conditioning on live birth may induce selection bias when studying the effect of a drug on a pregnancy complication if fetal death is a competing risk for the complication or is caused by the complication. METHODS: We simulated a population of 100,000 pregnancies and estimated the impact of selection bias on relative estimates for the effect of antidepressant exposure on the outcome of preeclampsia. We assumed that the exposure, outcome, and covariates increased the risk of fetal loss. RESULTS: A downward bias in the risk ratio was consistently observed when conditioning on live births. When an unmeasured covariate was assumed to be a common cause of fetal death, antidepressant use, and preeclampsia, the direction of bias varied depending on the strength of the confounding relationship coupled with the selection bias. Despite the very low prevalence of stillbirth, the strength of the relationship between antidepressant use and stillbirth had a substantial impact on bias. CONCLUSIONS: Conditioning on live birth can be problematic when studying pregnancy complications. Simple quantitative selection bias analysis in populations restricted to live births may not fully account for selection bias. PMID- 29341341 TI - Prediction of activation patterns preceding hallucinations in patients with schizophrenia using machine learning with structured sparsity. AB - Despite significant progress in the field, the detection of fMRI signal changes during hallucinatory events remains difficult and time-consuming. This article first proposes a machine-learning algorithm to automatically identify resting state fMRI periods that precede hallucinations versus periods that do not. When applied to whole-brain fMRI data, state-of-the-art classification methods, such as support vector machines (SVM), yield dense solutions that are difficult to interpret. We proposed to extend the existing sparse classification methods by taking the spatial structure of brain images into account with structured sparsity using the total variation penalty. Based on this approach, we obtained reliable classifying performances associated with interpretable predictive patterns, composed of two clearly identifiable clusters in speech-related brain regions. The variation in transition-to-hallucination functional patterns not only from one patient to another but also from one occurrence to the next (e.g., also depending on the sensory modalities involved) appeared to be the major difficulty when developing effective classifiers. Consequently, second, this article aimed to characterize the variability within the prehallucination patterns using an extension of principal component analysis with spatial constraints. The principal components (PCs) and the associated basis patterns shed light on the intrinsic structures of the variability present in the dataset. Such results are promising in the scope of innovative fMRI-guided therapy for drug-resistant hallucinations, such as fMRI-based neurofeedback. PMID- 29341342 TI - The Pentagonal-Pyramidal Hexamethylbenzene Dication: Many Shades of Coordination Chemistry at Carbon. AB - A recent report on the crystal structure of the pentagonal-pyramidal hexamethylbenzene dication C6 (CH3 )62+ by Malischewski and Seppelt [Angew. Chem. Int. Ed. 2017, 56, 368] confirmed the structural proposal made in the first report of this compound in 1973 by Hogeveen and Kwant [Tetrahedron Lett. 1973, 14, 1665]. The widespread attention that this compound quickly gained led us to reinvestigate its electronic structure. On the basis of intrinsic bond orbital analysis, effective oxidation state analysis, ring current analysis, and comparison with well-established coordination complexes, it is demonstrated that the central carbon atom behaves like a transition metal. The central (apical) carbon atom, although best described as a highly Lewis-acidic carbon atom coordinated with an anionic cyclopentadienyl ligand, is also capable of acting as an electron-pair donor to a formal CH3+ group. The different roles of coordination chemistry are discussed. PMID- 29341343 TI - Small heat shock protein B3 (HSPB3) mutation in an axonal Charcot-Marie-Tooth disease family. AB - Heat shock protein B3 (HSPB3) gene encodes a small heat-shock protein 27-like protein which has a high sequence homology with HSPB1. A mutation in the HSPB3 was reported as the putative underlying cause of distal hereditary motor neuropathy 2C (dHMN2C) in 2010. We identified a heterozygous mutation (c.352T>C, p.Tyr118His) in the HSPB3 from a Charcot-Marie-Tooth disease type 2 (CMT2) family by the method of targeted next generation sequencing. The mutation was located in the well conserved alpha-crystalline domain, and several in silico predictions indicated a pathogenic effect of the mutation. Clinical and electrophysiological features of the patients indicated the axonal type of CMT. Clinical symptoms without sensory involvements were similar between the present family and the previous family. Mutations in the HSPB1 and HSPB8 genes have been reported to be relevant with both types of CMT2 and dHMN. Our findings will help in the molecular diagnosis of CMT2 by expanding the phenotypic range due to the HSPB3 mutations. PMID- 29341344 TI - The medial temporal lobe functional connectivity patterns associated with forming different mental representations. AB - The medial temporal lobes (MTL), and more specifically the hippocampus, are critical for forming mental representations of past experiences-autobiographical memories-and for forming other "nonexperienced" types of mental representations, such as imagined scenarios. How the MTL coordinate with other brain areas to create these different types of representations is not well understood. To address this issue, we performed a task-based functional connectivity analysis on a previously published dataset in which fMRI data were collected as participants created different types of mental representations under three conditions. One condition required forming and relating together details from a past event (autobiographical task), another required forming and relating together details of a spatial context (spatial task) and another condition required relating together conceptual/perceptual features of an object (conceptual task). We contrasted the connectivity patterns associated with a functionally defined region in the parahippocampal cortex (PHC) and anatomically defined anterior and posterior hippocampal segments across these tasks. Examining PHC connectivity patterns revealed that the PHC seed was distinctly connected to other MTL structures during the autobiographical task, to posterior parietal regions during the spatial task and to a distributed network of regions for the conceptual task. Examining hippocampal connectivity patterns revealed that the anterior hippocampus was preferentially connected to regions of default mode network during the autobiographical task and to areas implicated in semantic processing for the conceptual task whereas the posterior hippocampus was preferentially connected to medial-posterior regions of the brain during the spatial task. We interpret our findings as evidence that there are MTL-guided networks for forming distinct types of mental representations that align with functional distinctions within the hippocampus. PMID- 29341345 TI - Increase in neutrophils after recombinant tissue plasminogen activator thrombolysis predicts poor functional outcome of ischaemic stroke: a longitudinal study. AB - BACKGROUND AND PURPOSE: Neutrophils, a pivotal immune responder to ischaemic brain insult, have been involved in neuroplasticity and increase after stroke. Recombinant tissue plasminogen activator (r-tPA), a promising treatment improving neuroplasticity, promotes neutrophil degranulation. However, the dynamic profile of neutrophils after r-tPA treatment and their effect on neurological recovery after stroke are not well studied. METHODS: Cell counts of neutrophils, lymphocytes and their ratio (NLR) were measured on admission and 24 h after r-tPA infusion in 372 consecutively recruited acute ischaemic stroke patients (mean age 64 years). Death or major disability at 3 months after stroke was diagnosed based on the modified Rankin Scale (mRS >= 3) obtained by neurologists who were blinded to any hospital records. The longitudinal associations of percentage increase in neutrophils, lymphocytes and the NLR with death or major disability were examined by logistic regression adjusting for covariates including neurological deficits at baseline. RESULTS: Neutrophils exhibited a steeper increase after r-tPA infusion in patients with death or major disability than in those without (P < 0.001). A 10% increase in neutrophils after r-tPA infusion was associated with an 83% increased risk for death or major disability within 3 months after stroke onset [odds ratio (OR) 1.99, P = 0.009]. Increased neutrophils at 24 h after r tPA (OR 6.30, P < 0.001 after log transformation) but not on admission significantly predicted increased risks for death or major disability within 3 months after stroke onset. A similar phenomenon was also observed for the NLR. CONCLUSIONS: A dynamic increase in neutrophils after stroke significantly predicts 3-month death or major disability in acute ischaemic stroke patients receiving r-tPA treatment. PMID- 29341346 TI - A systematic review and classification of interventions for speech-sound disorder in preschool children. AB - BACKGROUND: Multiple interventions have been developed to address speech sound disorder (SSD) in children. Many of these have been evaluated but the evidence for these has not been considered within a model which categorizes types of intervention. The opportunity to carry out a systematic review of interventions for SSD arose as part of a larger scale study of interventions for primary speech and language impairment in preschool children. AIMS: To review systematically the evidence for interventions for SSD in preschool children and to categorize them within a classification of interventions for SSD. METHODS & PROCEDURES: Relevant search terms were used to identify intervention studies published up to 2012, with the following inclusion criteria: participants were aged between 2 years and 5 years, 11 months; they exhibited speech, language and communication needs; and a primary outcome measure of speech was used. Studies that met inclusion criteria were quality appraised using the single case experimental design (SCED) or PEDro P, depending on their methodology. Those judged to be high quality were classified according to the primary focus of intervention. OUTCOMES & RESULTS: The final review included 26 studies. Case series was the most common research design. Categorization to the classification system for interventions showed that cognitive-linguistic and production approaches to intervention were the most frequently reported. The highest graded evidence was for three studies within the auditory-perceptual and integrated categories. CONCLUSIONS & IMPLICATIONS: The evidence for intervention for preschool children with SSD is focused on seven out of 11 subcategories of interventions. Although all the studies included in the review were good quality as defined by quality appraisal checklists, they mostly represented lower-graded evidence. Higher-graded studies are needed to understand clearly the strength of evidence for different interventions. PMID- 29341347 TI - Employing the arts for knowledge production and translation: Visualizing new possibilities for women speaking up about safety concerns in maternity. AB - OBJECTIVES: This project used animated film to translate research findings into accessible health information aimed at enabling women to speak up and secure professional help for serious safety concerns during pregnancy and after birth. We tested as proof of concept our use of the arts both as product (knowledge production) and process (enabling involvement). BACKGROUND: Emergencies during pregnancy and birth, while unusual, can develop rapidly and unexpectedly, with catastrophic consequences. Women's tacit knowledge of changes in their condition is an important resource to aid early detection, but women can worry about the legitimacy of their concerns and struggle to get these taken seriously by staff. DESIGN: Arts-based knowledge translation. A user group of women who had experienced complications in the perinatal period (n = 34) helped us develop and pilot test the animation. Obstetricians and midwives (15), clinical leads (3) and user group representatives (8) helped with the design and testing. FINDINGS: The consultation process, script and storyboard enabled active interaction with the evidence, meaningful engagement with stakeholders and new understandings about securing help for perinatal complications. The method enabled us to address gender stereotypes and social norms about speaking up and embed a social script for women within the animation, to help structure their help seeking. While for some women, there was an emotional burden, the majority were glad to have been part of the animation's development and felt it had enabled their voices to be heard. CONCLUSION: This project has demonstrated the benefits of arts-science collaborations for meaningful co-production and effective translation of research evidence. PMID- 29341348 TI - The development and validation of the Evidence-Based Practice Questionnaire: Japanese version. AB - AIM: To develop and test the validity and reliability of a Japanese version of the Evidence-Based Practice Questionnaire. METHODS: The Evidence-Based Practice Questionnaire was translated into Japanese, and a back-translation was performed. In March 2016, the survey was conducted among 843 nurses in 2 university hospitals in Japan. After 2 weeks, the same questionnaire for test-retest reliability was distributed to 197 nurses. We evaluated construct validity by factor analysis: convergent, discriminant, criterion-based and known-group validity, and reliability (internal consistency via Cronbach' alpha and test retest reliability). RESULTS: A total of 533 (66%) of nurses who agreed to our study returned the completed questionnaire, and 108 nurses (55%) agreed to the test-retest. Factor analysis confirmed that the original model of the Evidence Based Practices Questionnaire was not statistically appropriate for Japanese nurses. Therefore, the final version of the Japanese version adopted 18 items and 4 subscales including practice, attitudes, and knowledge/skills related to research and practice. In the final version, the validity and reliability were moderate (Cronbach alpha = .90). CONCLUSION: The Japanese version of the Evidence Based Practices Questionnaire is a reliable and valid tool and can be used to assess evidence-based practice, attitudes, and research knowledge/skills in Japan. PMID- 29341349 TI - Peroxiredoxin 4 (PRDX4): Its critical in vivo roles in animal models of metabolic syndrome ranging from atherosclerosis to nonalcoholic fatty liver disease. AB - The peroxiredoxin (PRDX) family, a new family of proteins with a pivotal antioxidative function, is ubiquitously synthesized and abundantly identified in various organisms. In contrast to the intracellular localization of other family members (PRDX1/2/3/5/6), PRDX4 is the only known secretory form and protects against oxidative damage by scavenging reactive oxygen species in both the intracellular (especially the endoplasmic reticulum) compartments and the extracellular space. We generated unique human PRDX4 (hPRDX4) transgenic (Tg) mice on a C57BL/6J background and investigated the critical and diverse protective roles of PRDX4 against diabetes mellitus, atherosclerosis, insulin resistance, and nonalcoholic fatty liver disease (NAFLD) as well as evaluated its role in the intestinal function in various animal models. Our published data have shown that PRDX4 helps prevent the progression of metabolic syndrome by reducing local and systemic oxidative stress and synergistically suppressing steatosis, inflammatory reactions, and/or apoptotic activity. These observations suggest that Tg mice may be a useful animal model for studying the relevance of oxidative stress on inflammation and the dysregulation of lipid/bile acid/glucose metabolism upon the progression of human metabolic syndrome, and that specific accelerators of PRDX4 may be useful as therapeutic agents for ameliorating various chronic inflammatory diseases. PMID- 29341350 TI - The effects of wireless electromagnetic fields on the activities of carbonic anhydrase and acetylcholinesterase enzymes in various tissues of rats. AB - The purpose of our study is to assist in understanding the effects of wireless electromagnetic waves on carbonic anhydrase (CA) and acetylcholinesterase (AChE) enzymes activities in the different tissues of the rats. For this purpose, two different groups each of which contains eight rats (n = 8) were formed as being control group and wireless electromagnetic wave-administered group. The rats were necropsied after 60 min from the injection of chemicals into the rats intraperitoneally. The different tissues of the rats were extracted. CA and AChE enzymes activities were measured for each tissue. All the experimental results were provided in mean +/- S.D. Statistical significance was identified to be P < 0.05. It was observed that there were significant changes of enzyme activities in wireless-administered group in salivary gland, stomach, colon, liver, and striated muscle tissues. PMID- 29341351 TI - Discordant von Willebrand factor (VWF) activity in patients with VWF p.Gly1324Ser confirmed in vitro. PMID- 29341352 TI - Misregulation of membrane trafficking processes in human nonalcoholic steatohepatitis. AB - Nonalcoholic steatohepatitis (NASH) remodels the expression and function of genes and proteins that are critical for drug disposition. This study sought to determine whether disruption of membrane protein trafficking pathways in human NASH contributes to altered localization of multidrug resistance-associated protein 2 (MRP2). A comprehensive immunoblot analysis assessed the phosphorylation, membrane translocation, and expression of transporter membrane insertion regulators, including several protein kinases (PK), radixin, MARCKS, and Rab11. Radixin exhibited a decreased phosphorylation and total expression, whereas Rab11 had an increased membrane localization. PKCdelta, PKCalpha, and PKA had increased membrane activation, whereas PKCepsilon had a decreased phosphorylation and membrane expression. Radixin dephosphorylation may activate MRP2 membrane retrieval in NASH; however, the activation of Rab11/PKCdelta and PKA/PKCalpha suggest an activation of membrane insertion pathways as well. Overall these data suggest an altered regulation of protein trafficking in human NASH, although other processes may be involved in the regulation of MRP2 localization. PMID- 29341353 TI - Fluorescence Redox Blinking Adaptable to Structural Analysis of Nucleic Acids. AB - The phenomenon of blinking is unique to single-molecule fluorescence measurements. By designing a fluorophore with an appropriate dark-state lifetime tauoff , a kinetic analysis based on the control of fluorescence blinking (KACB) was devised to investigate the dynamics of biomolecules. By controlling the redox reaction-based blinking (rKACB), conformational dynamics of RNA at the single molecule level was previously investigated. However, there is little knowledge about suitable fluorescent molecules for rKACB, and the application of rKACB has been limited to the analysis of hairpins and duplex structures of nucleic acids. In this work, various fluorescent molecules, including Alexa 488, R6G, TAMRA, ATTO 647N and ATTO 655, were evaluated for rKACB. Moreover, rKACB was adapted to the discrimination of DNA/DNA and DNA/RNA nucleic acid duplexes and investigation of antigen-antibody interactions. By changing the size of the oxidant, it was possible to determine the solvent accessibility of the target domain of the analyzed biomolecules. PMID- 29341354 TI - A mutation in the heptad repeat 2 domain of MFN2 in a large CMT2A family. AB - Dominant mutations in MFN2 cause a range of phenotypes, including severe, early onset axonal neuropathy, "classical CMT2," and late-onset axonal neuropathies. We report a large family with an axonal polyneuropathy, with clinical onset in the 20s, followed by slow progression. PMID- 29341355 TI - Reflectance confocal microscopy and optical coherence tomography for the diagnosis of bullous pemphigoid and pemphigus and surrounding subclinical lesions. AB - BACKGROUND: Diagnosis of bullous pemphigoid (BP) and pemphigus is based on clinical features, histology, immunofluorescence and laboratory data. OBJECTIVES: To evaluate features of BP and pemphigus at reflectance confocal microscopy (RCM) and optical coherence tomography (OCT) in order to provide a rapid non-invasive bed-side diagnosis. Secondary objective was to evaluate the detectability of clinically non-visible lesions. METHODS: This was an observational, retrospective, multicentre study in which patients with suspicious lesions for BP or pemphigus underwent clinical assessment, RCM, OCT, blood tests and skin biopsy for histological and direct immunofluorescence examinations from January 2014 to December 2015. A total of 72 lesions in 24 selected patients were evaluated. Additionally, apparently unaffected skin at two different distances [near (1-2 cm) and far (2-3 cm)] from each lesion was examined to test subclinical lesion detectability. RESULTS: RCM was able to detect subepidermal and intra-epidermal blisters, respectively, in 75% and 50% of the patients affected by BP and pemphigus. At OCT, the exact blister level was identified in all patients. Acantholytic cells were observed only at RCM in pemphigus (62.5%). Fibrin deposition inside the blisters was only found in BP, evidenced both at RCM and OCT. Among patients with BP, subclinical blisters were detected in nine (9.4%) clinically healthy skin, while among patients with pemphigus were observed in 10 (20.8%) apparently unaffected skin. CONCLUSION: RCM and/or OCT provide useful information for a rapid diagnosis of BP and pemphigus and for the identification of biopsy site. Combined use of RCM and OCT is optimal because associates the higher resolution of RCM with the greater penetration depth of OCT. OCT could be an optimal tool for treatment monitoring, especially in the cases of subclinical lesions. However, histopathologic and immunologic examinations remain the gold standard for establishing the final diagnosis. PMID- 29341356 TI - All over the map: An interobserver agreement study of tumor location based on the PI-RADSv2 sector map. AB - BACKGROUND: Prostate imaging reporting and data system version 2 (PI-RADSv2) recommends a sector map for reporting findings of prostate cancer mulitparametric MRI (mpMRI). Anecdotally, radiologists may demonstrate inconsistent reproducibility with this map. PURPOSE: To evaluate interobserver agreement in defining prostate tumor location on mpMRI using the PI-RADSv2 sector map. STUDY TYPE: Retrospective. POPULATION: Thirty consecutive patients who underwent mpMRI between October, 2013 and March, 2015 and who subsequently underwent prostatectomy with whole-mount processing. FIELD STRENGTH: 3T mpMRI with T2 W, diffusion-weighted imaging (DWI) (apparent diffusion coefficient [ADC] and b 2000), dynamic contrast-enhanced (DCE). ASSESSMENT: Six radiologists (two high, two intermediate, and two low experience) from six institutions participated. Readers were blinded to lesion location and detected up to four lesions as per PI RADSv2 guidelines. Readers marked the long-axis of lesions, saved screen-shots of each lesion, and then marked the lesion location on the PI-RADSv2 sector map. Whole-mount prostatectomy specimens registered to the MRI served as ground truth. Index lesions were defined as the highest grade lesion or largest lesion if grades were equivalent. STATISTICAL TEST: Agreement was calculated for the exact, overlap, and proportion of agreement. RESULTS: Readers detected an average of 1.9 lesions per patient (range 1.6-2.3). 96.3% (335/348) of all lesions for all readers were scored PI-RADS >=3. Readers defined a median of 2 (range 1-18) sectors per lesion. Agreement for detecting index lesions by screen shots was 83.7% (76.1%-89.9%) vs. 71.0% (63.1-78.3%) overlap agreement on the PI-RADS sector map (P < 0.001). Exact agreement for defining sectors of detected index lesions was only 21.2% (95% confidence interval [CI]: 14.4-27.7%) and rose to 49.0% (42.4-55.3%) when overlap was considered. Agreement on defining the same level of disease (ie, apex, mid, base) was 61.4% (95% CI 50.2-71.8%). DATA CONCLUSION: Readers are highly likely to detect the same index lesion on mpMRI, but exhibit poor reproducibility when attempting to define tumor location on the PI-RADSv2 sector map. The poor agreement of the PI-RADSv2 sector map raises concerns its utility in clinical practice. LEVEL OF EVIDENCE: 3 Technical Efficacy: Stage 2 J. MAGN. RESON. IMAGING 2018;48:482-490. PMID- 29341357 TI - A multicenter pilot survey to clarify the clinical features of patients with acute-on-chronic liver failure in Japan. AB - AIM: To establish diagnostic criteria for acute-on-chronic liver failure (ACLF) in Japan, a multicenter pilot survey was carried out to examine the usefulness of overseas criteria in patients with chronic liver diseases manifesting acute decompensation. METHODS: Patients fulfilling the Asian-Pacific Association for the Study of the Liver (APASL), European Association for the Study of the Liver (EASL), or Chinese Medical Association (CMA) criteria for decompensation were enrolled from eight institutions in Japan, and the clinical features were evaluated. RESULTS: Among 112 patients, 109 patients (97.3%) fulfilled the APASL criteria for decompensation; 7 patients were excluded because the decompensation had been provoked by gastrointestinal bleeding. Consequently, 102 patients (91.1%) were diagnosed as having ACLF according to the APASL definition. Among the patients who fulfilled the APASL criteria for decompensation, the etiologies of the underlying liver diseases were alcohol abuse in 59 cases (54.1%) and hepatitis B or hepatitis C virus infection in 24 (22.0%). The acute insults were alcohol abuse in 50 (45.9%), bacterial infection in 26 (23.9%), and exacerbation of underlying liver disease in 14 (12.8%). Fifty-four patients (49.5%) satisfied the CMA criteria, but the survival rates were similar between patients who did and those who did not meet the criteria. When 84 patients with underlying cirrhosis were classified according to the EASL-Chronic Liver Failure (Clif) Consortium criteria, the survival rates differed according to grade: 67.6% (23/34) for patients without ACLF, and 41.2% (14/34) and 18.8% (3/16) for those with grade 1/2 and grade 3 ACLF, respectively. CONCLUSION: The APASL definition was suitable for screening Japanese patients with ACLF, including those whose conditions were triggered by gastrointestinal bleeding, and the EASL-Clif Consortium criteria were useful for predicting outcome. PMID- 29341358 TI - Thermal and hydrologic responses to climate change predict marked alterations in boreal stream invertebrate assemblages. AB - Air temperature at the northernmost latitudes is predicted to increase steeply and precipitation to become more variable by the end of the 21st century, resulting in altered thermal and hydrological regimes. We applied five climate scenarios to predict the future (2070-2100) benthic macroinvertebrate assemblages at 239 near-pristine sites across Finland (ca. 1200 km latitudinal span). We used a multitaxon distribution model with air temperature and modeled daily flow as predictors. As expected, projected air temperature increased the most in northernmost Finland. Predicted taxonomic richness also increased the most in northern Finland, congruent with the predicted northwards shift of many species' distributions. Compositional changes were predicted to be high even without changes in richness, suggesting that species replacement may be the main mechanism causing climate-induced changes in macroinvertebrate assemblages. Northern streams were predicted to lose much of the seasonality of their flow regimes, causing potentially marked changes in stream benthic assemblages. Sites with the highest loss of seasonality were predicted to support future assemblages that deviate most in compositional similarity from the present-day assemblages. Macroinvertebrate assemblages were also predicted to change more in headwaters than in larger streams, as headwaters were particularly sensitive to changes in flow patterns. Our results emphasize the importance of focusing protection and mitigation on headwater streams with high-flow seasonality because of their vulnerability to climate change. PMID- 29341359 TI - Familiar communication partners' facilitation of topic management in conversations with individuals with dementia. AB - BACKGROUND: Language and memory impairments affect everyday interactions between individuals with dementia and their communication partners. Impaired topic management, which compromises individuals' construction of relevant, meaningful discourse, is commonly reported amongst individuals with dementia. Currently, limited empirical evidence describes the sequential patterns of behaviour comprising topic-management practices in everyday conversation between individuals with dementia and their communication partners. AIMS: To describe the sequential patterns of behaviour relating to the manifestation of topic management impairments and facilitative behaviours in everyday interactions between individuals with dementia and their familiar communication partners (FCPs). METHODS & PROCEDURES: Three 20-min conversations between individuals with moderate to severe dementia and their FCPs were recorded. Conversation Analysis was used to examine sequences in which topic-management appeared to be impaired. OUTCOMES & RESULTS: Conversational behaviours that reflected a difficulty in contributing on-topic talk were pervasive in the talk of the three individuals with dementia. FCPs responded to these conversational difficulties by using two categories of facilitative behaviours. The first involved responding to an individual with dementia's explicit repair-initiation by performing repair. In the second category, explicit repair-initiation was absent; instead, the distance of the conversational difficulty from the prior topic-shifting turn mediated the form and outcome of the FCPs' facilitative behaviours. Each category successfully facilitated the individual with dementia to contribute on-topic talk. CONCLUSIONS & IMPLICATIONS: The findings contribute to a growing understanding of topic management abilities in everyday interactions involving individuals with dementia. Individuals with dementia took a proactive role in eliciting topic management support. The FCPs responded with turns that facilitated the individuals with dementia to talk on-topic. Clinically, the results support and extend the current topic-management recommendations available in communication partner training programmes, and promote conversations which attend to the personhood of the individual with dementia. PMID- 29341360 TI - Comparison of respiratory system impedance in asthma and COPD: A prospective observational study. AB - BACKGROUND AND OBJECTIVE: A single assessment of within-breath variations of respiratory system reactance (Xrs) at 5 Hz (DeltaX5) measured by the forced oscillation technique (FOT) has been reported to be useful for the detection of pathophysiological changes in chronic obstructive pulmonary disease (COPD) and asthma. We examined longitudinal changes in respiratory system resistance (Rrs) and Xrs during tidal breathing between stable asthma and COPD patients in order to clarify the features of changes of respiratory system impedance and airflow limitation for these conditions. METHODS: Between April 2013 and September 2013, outpatients with a COPD or asthma diagnosis were recruited. We examined forced expiratory volume in 1 s (FEV1 ) and FOT every 6 months until September 2015. Annual changes were estimated from the linear regression curve slope. RESULTS: We included 57 and 93 subjects with COPD and asthma, respectively. The median follow up period was 26 months (range: 24-29 months). Within-breath analysis showed that the difference between mean Rrs at 5 Hz and 20 Hz was significantly lower, and DeltaX5 more negative, in COPD than in asthma patients. With regard to annual changes, only DeltaX5 was significantly different, more negative, in COPD than in asthma patients. Comparing between COPD subjects of Global Initiative Chronic Obstructive Lung Disease (GOLD) stage I/II and those with asthma, there were no significant differences in respiratory system impedance at enrolment, while annual change in DeltaX5 was significantly more negative in mild COPD than in asthma patients. CONCLUSION: DeltaX5 may be useful for long-term assessment of airflow limitation in COPD. PMID- 29341362 TI - A novel mutation of LRSAM1 in a Chinese family with Charcot-Marie-Tooth disease. AB - Charcot-Marie-Tooth (CMT) disease is the most common inherited peripheral neuropathy characterized by progressive distal muscle weakness and atrophy with decreased or absent tendon reflexes. Mutations in LRSAM1 have been identified to cause CMT disease type 2P. We report a novel LRSAM1 mutation c.2021-2024del (p.E674VfsX11) in a Chinese autosomal dominant CMT disease type 2 family. The phenotype was characterized by late onset and mild sensory impairment. Electrophysiological findings showed normal or mildly to moderately reduced motor and sensory nerve conduction velocities in lower and upper limb nerves. PMID- 29341361 TI - Parvalbumin interneuron mediated feedforward inhibition controls signal output in the deep layers of the perirhinal-entorhinal cortex. AB - The perirhinal (PER) and lateral entorhinal (LEC) cortex form an anatomical link between the neocortex and the hippocampus. However, neocortical activity is transmitted through the PER and LEC to the hippocampus with a low probability, suggesting the involvement of the inhibitory network. This study explored the role of interneuron mediated inhibition, activated by electrical stimulation in the agranular insular cortex (AiP), in the deep layers of the PER and LEC. Activated synaptic input by AiP stimulation rarely evoked action potentials in the PER-LEC deep layer excitatory principal neurons, most probably because the evoked synaptic response consisted of a small excitatory and large inhibitory conductance. Furthermore, parvalbumin positive (PV) interneurons-a subset of interneurons projecting onto the axo-somatic region of principal neurons-received synaptic input earlier than principal neurons, suggesting recruitment of feedforward inhibition. This synaptic input in PV interneurons evoked varying trains of action potentials, explaining the fast rising, long lasting synaptic inhibition received by deep layer principal neurons. Altogether, the excitatory input from the AiP onto deep layer principal neurons is overruled by strong feedforward inhibition. PV interneurons, with their fast, extensive stimulus evoked firing, are able to deliver this fast evoked inhibition in principal neurons. This indicates an essential role for PV interneurons in the gating mechanism of the PER-LEC network. PMID- 29341364 TI - Food-dependent exercise-induced anaphylaxis in Japanese elementary school children. AB - BACKGROUND: In 2012, we clarified that the prevalence of food-dependent exercise induced anaphylaxis (FDEIA) was 0.018% in junior-high students in Yokohama, Japan. Furthermore, although different from FDEIA, one student who had completed oral immunotherapy developed anaphylaxis during exercise after eating causative food. There have been few large-scale epidemiological studies of FDEIA, however, in elementary school children, therefore we conducted an epidemiological study in elementary school children in Yokohama to clarify the frequency and characteristic of FDEIA. METHODS: We sent a questionnaire regarding the occurrence of FDEIA to all 348 public elementary school nurses in Yokohama. We also compared the results with those for junior-high school that we previously reported. We excluded those children with a past history of immediate food allergy who had achieved desensitization status after oral immunotherapy, from FDEIA, and instead defined them as having desensitization status and exercise induced anaphylaxis (DEIA). RESULTS: Of 348 school nurses, 317 responded (91.1%). Overall, eight of 170 146 children were diagnosed with FDEIA, which was significantly lower than the prevalence in junior-high school students (0.0047% vs 0.018%, P = 0.0009). The causative foods were wheat (n = 4), and soy, fruit, crustaceans, and squid (n = 1 each). Four children had DEIA and the causative foods were wheat and milk (n = 2 each). Multiple episodes occurred in five children with FDEIA and in three children with DEIA. CONCLUSIONS: FDEIA was far less common in elementary school than in junior-high school, and wheat was the major causative food. The new appearance of DEIA was notable. Decreasing episode recurrence remains an issue that needs to be resolved. PMID- 29341365 TI - How and Why Does Helium Permeate Nonporous Arsenolite Under High Pressure? AB - Investigations into the helium permeation of arsenolite, the cubic, molecular arsenic(III) oxide polymorph As4 O6 , were carried out to understand how and why arsenolite helium clathrate As4 O6 ?2 He is formed. High-pressure synchrotron X ray diffraction experiments on arsenolite single crystals revealed that the permeation of helium into nonporous arsenolite depends on the time for which the crystal is subjected to high pressure and on the crystal history. The single crystal was totally transformed into As4 O6 ?2 He within 45 h under 5 GPa. After release of the pressure, arsenolite was recovered and a repeated increase in pressure up to 3 GPa led to practically instant As4 O6 ?2 He formation. However, when a pristine arsenolite single crystal was quickly subjected to a pressure of 13 GPa, no helium permeation was observed at all. No neon permeation was observed in analogous experiments. Quantum mechanical computations indicate that there are no specific attractive interactions between He atoms and As4 O6 molecules at the distances observed in the As4 O6 ?2 He crystal structure. Detailed analysis of As4 O6 molecular structure changes has shown that the introduction of He into the arsenolite crystal lattice significantly reduces molecular deformations by decreasing the anisotropy of stress exerted on the As4 O6 molecules. This effect and the pDeltaV term, rather than any specific As???He binding, are the driving forces for the formation As4 O6 ?2 He. PMID- 29341366 TI - Impact of multiple stressors on juvenile fish in estuaries of the northeast Pacific. AB - A key step in identifying global change impacts on species and ecosystems is to quantify effects of multiple stressors. To date, the science of global change has been dominated by regional field studies, experimental manipulation, meta analyses, conceptual models, reviews, and studies focusing on a single stressor or species over broad spatial and temporal scales. Here, we provide one of the first studies for coastal systems examining multiple stressor effects across broad scales, focused on the nursery function of 20 estuaries spanning 1,600 km of coastline, 25 years of monitoring, and seven fish and invertebrate species along the northeast Pacific coast. We hypothesized those species most estuarine dependent and negatively impacted by human activities would have lower presence and abundances in estuaries with greater anthropogenic land cover, pollution, and water flow stress. We found significant negative relationships between juveniles of two of seven species (Chinook salmon and English sole) and estuarine stressors. Chinook salmon were less likely to occur and were less abundant in estuaries with greater pollution stress. They were also less abundant in estuaries with greater flow stress, although this relationship was marginally insignificant. English sole were less abundant in estuaries with greater land cover stress. Together, we provide new empirical evidence that effects of stressors on two fish species culminate in detectable trends along the northeast Pacific coast, elevating the need for protection from pollution, land cover, and flow stressors to their habitats. Lack of response among the other five species could be related to differing resistance to specific stressors, type and precision of the stressor metrics, and limitations in catch data across estuaries and habitats. Acquiring improved measurements of impacts to species will guide future management actions, and help predict how estuarine nursery functions can be optimized given anthropogenic stressors and climate change scenarios. PMID- 29341367 TI - Development of Antibody-Directed Therapies: Quo Vadis? AB - Less is more: The efficacy of antibody-drug conjugates (ADCs) for cancer therapy is traditionally associated with cleavable linkers for payload release. Evidence now suggests that simpler constructs without cleavable moieties can afford more stable and effective ADCs. PMID- 29341368 TI - Multiple sclerosis as a universal disease and the challenges to immigrants in high prevalence countries. PMID- 29341369 TI - Structural Factors Affecting Binding of Platinum Anticancer Agents with Phospholipids: Influence of Charge and Phosphate Clamp Formation. AB - We report a detailed NMR and DFT study of the interaction of polynuclear platinum anticancer agents (PPCs) with negatively charged phospholipids as a mechanism for their cellular uptake. The reactions of fully 15 N-labelled [{trans-PtCl(NH3 )2 }2 (MU-trans-Pt(NH3 )2 {NH2 (CH2 )6 NH2 }2 )]4+ (15 N-1, 1,0,1/t,t,t) and the dinuclear [{trans-PtCl(NH3 )2 }2 {MU-H2 N(CH2 )6 NH2 }]2+ (15 N-2, 1,1/t,t) with the sodium salt of 1,2-dihexanoyl-sn-glycero-3-phosphate (DHPA) were studied at 298 K, pH ~5.4, by [1 H,15 N] HSQC 2D NMR spectroscopy. Both 15 N-1 and 15 N-2 form an initial mono-adduct in which the DHPA is coordinated via the phosphate O atom. For the dinuclear 15 N-2, coordination of a second DHPA, in two different orientations, leads to two conformers of the bifunctional adduct. For 15 N-1, coordination of the second DHPA allows the central {PtN4 } coordination unit to bind electrostatically to two additional DHPA molecules via phosphate clamp interactions, in an extended network. For both 1,0,1/t,t,t (1) and 1,1/t,t (2), equilibrium conditions are obtained more slowly (>35 h) than in the presence of phosphate (12 h) and in each case the rate constant for the first step of DHPA binding (kL ) is about 8 times higher than that for phosphate, whereas the rate constants for the reverse reactions are quite similar. Reaction of 15 N-1 with the sodium salt of 1,2-dihexanoyl-sn-glycero-3-[phosphatidyl-l-serine] (DHPS) showed only minor adduct formation via coordination to the N-donor atom of the phosphoserine group. PMID- 29341370 TI - Real-world clinical outcomes and predictors of glycaemic and weight response to exenatide once weekly in patients with type 2 diabetes: The CIBELES project. AB - AIMS: To evaluate in a real-world setting the effectiveness of exenatide once weekly (ExQW) in patients with T2D and to determine predictors of glycaemic and weight response to this drug at 6 months. METHODS: Observational, retrospective, multicenter study in adult patients with T2D and BMI >=30 kg/m2 from 4 tertiary Spanish hospitals who started ExQW therapy at least 6 months before the inclusion and had not achieved adequate glycaemic control on oral therapies or other GLP-1 receptor agonists. Glycaemic response was defined as an A1C reduction >=1.0% and weight response as a weight loss >=3% 6 months after ExQW. The best predictive models of glycaemic and weight response were estimated by binary logistic regression. RESULTS: One hundred and forty eight patients were included, mean age 58.0 years, A1C 7.7%, weight 105.9 kg and BMI 38.4 kg/m2 . A1C (-1.1%), weight ( 3.9 kg), systolic blood pressure (-4.0 mm Hg), diastolic blood pressure (-2.9 mm Hg), LDL-cholesterol (-14.2 mg/dL) and triglycerides (-31.0 mg/dL) significantly decreased 6 months after ExQW. 41.5% of patients had an A1C reduction >=1.0% and 53.1% lost >=3% of baseline weight. Glycaemic and weight reductions were sustained in patients completing 1 and 2 years of follow-up. The best predictive model of glycaemic response only included higher A1C levels (OR 3.9), whereas higher BMI (OR 1.1) and prior DPP-4i therapy (OR 3.1) were associated to weight response in the multivariate analysis. CONCLUSIONS: In a real-world setting, ExQW significantly decreased A1C, weight, blood pressure and lipids at 6 months. Our study identified higher baseline A1C as the sole independent predictor of glycaemic response to ExQW and higher BMI and previous DDP4i treatment as predictive factors of meaningful weight response. PMID- 29341371 TI - Electrochemical monitoring of aflatoxin M1 in milk samples using silver nanoparticles dispersed on alpha-cyclodextrin-GQDs nanocomposite. AB - Aflatoxins are potential food pollutants produced by fungi. One of important toxins is aflatoxin M1 (AFM1). A great deal of concern is associated with AFM1 toxicity. In the present study, an innovative electrochemical interface for quantitation of AFM1 based on ternary signal amplification strategy was fabricated. In this work, silver nanoparticles was electrodeposited onto green and biocompatible nanocomposite containing alpha-cyclodextrin as conductive matrix and graphene quantum dots as amplification element. Therefore, a multilayer film based on alpha-cyclodextrin, graphene quantum dots, and silver nanoparticles was exploited to develop a highly sensitive electrochemical sensor for detection of AFM1. Fully electrochemical methodology was used to prepare a transducer on a glassy carbon electrode, which provided a high surface area toward sensitive detection of AFM1. The surface morphology of electrode surface was characterized by high-resolution field emission scanning electron microscope. The proposed sensing platform provides a simple tool for AFM1 detection. Under optimized condition, the calibration curve for AFM1 concentration was linear in 0.015mM to 25mM with low limit of quantification of 2MUM. The practical analytical utility of the modified electrode was illustrated by determination of AFM1 in unprocessed milk samples. PMID- 29341372 TI - Renal transplantation in children under 3 years of age: Experience from a single center study. AB - RTx remains challenging in children under 3 years of age. This single-center study reviewed the medical records of children <3 years transplanted since 1987 (N = 32, Group 1). They were matched for donor type and RTx period with children aged 3-13 years (N = 32, Group 2) and 13-18 years (N = 32, Group 3). There were no between-group significant differences regarding distributions of gender, primary renal disease, proportion of dialysis before RTx, and growth (SDS). Compared to Groups 2 and 3, Group 1 had more peritoneal dialyses (P < .001), more EBV mismatches (P = .04), and longer warm ischemia times (P < .001). The risk of graft loss was not significantly different among age groups (hazard ratio, 2.4 in Group 2 and 2.0 in Group 3 vs Group 1; P = .2). Death occurred in four patients (3 in Group 1 and 1 in Group 2) and graft loss occurred in 28 patients, mainly due to chronic allograft nephropathy. In recipients <3 years of age, the outcomes of RTx are close to those obtained in older pediatric age groups. Thus, young patients may be transplanted in experienced multidisciplinary teams without additional risks provided that particular attention is paid to donor selection and prevention/early diagnosis of comorbidities and complications. PMID- 29341373 TI - Antibiotic allergy labels-the impact of taking a clinical history. AB - BACKGROUND: Many patients admitted to hospital have an antibiotic allergy (AAL) documented in their medical record. In many of these, the reaction is not a hypersensitivity reaction or may no longer be relevant. Despite this, the label adversely affects patient care directly in terms of antibiotic selection, and indirectly in terms of patient costs and the development of antimicrobial resistance. AIMS: To estimate the prevalence of AALs in a cohort of hospitalised patients, to investigate the feasibility of de-labelling through re-challenge based solely upon clinical grounds. DESIGN: This is a cross-sectional study conducted over a 6-month period on adult inpatients. An allergy history was taken from each patient and compared with medical record data regarding allergy. Antibiotic selection data were collected (if relevant). It was then determined whether immediate de-labelling was appropriate, if direct provocation test (DPT) could be relatively safely performed, and if antibiotic selection was appropriate. RESULTS: Three thousand eight hundred and fifty five patients were screened, 553 (14.35%) had an AAL, and 352 were interviewed. There were 426 AALs; 276 (64.8%) towards a penicillin. After taking a detailed clinical history of the type of reaction, approximately 20% could be immediately de-labelled and educated (non-allergic, non-severe reactions) and another 38% with either a definite or vague history of mild cutaneous reaction would be suitable for an attempt at clinical de-labelling DPT. CONCLUSIONS: These simple measures to 'de-label' patients appropriately, would increase the quality of care of this group known to have higher costs, infection with more resistant bacteria and worse health outcomes that 'non-labelled' patients. PMID- 29341374 TI - Validation of the digital PCR system in tyrosine kinase inhibitor-resistant EGFR mutant non-small-cell lung cancer. AB - The aim of this study was to compare the accuracy of the QuantStudio 3D Digital polymerase chain reaction (dPCR) system and a PCR-based next generation sequencing (NGS) system for detecting a secondary mutation in the epidermal growth factor receptor (EGFR) gene T790M in non-small cell lung cancer (NSCLC) patients previously diagnosed with EGFR-activating mutations. Twenty-five patients with NSCLC previously treated with EGFR-TKIs were examined. The patients were treated daily with either erlotinib or gefitinib. New biopsies, followed by DNA sequencing on an Ion Torrent systems using the Ion Torrent AmpliSeq Cancer Hotspot Panel and dPCR were performed. A comparison of NGS, sensitive PCR, and dPCR revealed that the sensitivities of NGS and dPCR were similar in this study. As well, T790M was detected in as low as about 5% of mutant allelic frequencies, which represented 5% of the total reads on site mapped reads in NGS and greater than 5% of the dPCR reads, which represented mutant and wild type copies. The strategy in which NGS sequencing is followed by revealed acquired mutation with dPCR may be a reasonable one. We demonstrated the utility of combining NGS and dPCR as a tool for monitoring T790M. NGS and dPCR with formalin-fixed paraffin embedded (FFPE) specimens might become a standard genomic test for exploring acquired resistance to targeted molecular medicines. PMID- 29341375 TI - Transparency-enhancing technology allows three-dimensional assessment of gastrointestinal mucosa: A porcine model. AB - Although high-resolution three-dimensional imaging of endoscopically resected gastrointestinal specimens can help elucidating morphological features of gastrointestinal mucosa or tumor, there are no established methods to achieve this without breaking specimens apart. We evaluated the utility of transparency enhancing technology for three-dimensional assessment of gastrointestinal mucosa in porcine models. Esophagus, stomach, and colon mucosa samples obtained from a sacrificed swine were formalin-fixed and paraffin-embedded, and subsequently deparaffinized for analysis. The samples were fluorescently stained, optically cleared using transparency-enhancing technology: ilLUmination of Cleared organs to IDentify target molecules method (LUCID), and visualized using laser scanning microscopy. After observation, all specimens were paraffin-embedded again and evaluated by conventional histopathological assessment to measure the impact of transparency-enhancing procedures. As a result, microscopic observation revealed horizontal section views of mucosa at deeper levels and enabled the three dimensional image reconstruction of glandular and vascular structures. Besides, paraffin-embedded specimens after transparency-enhancing procedures were all assessed appropriately by conventional histopathological staining. These results suggest that transparency-enhancing technology may be feasible for clinical application and enable the three-dimensional structural analysis of endoscopic resected specimen non-destructively. Although there remain many limitations or problems to be solved, this promising technology might represent a novel histopathological method for evaluating gastrointestinal cancers. PMID- 29341376 TI - Effects of Playback Theatre on cognitive function and quality of life in older adults in Singapore: A preliminary study. AB - OBJECTIVE: This study investigated the effects of Playback Theatre on older adults' cognitive function and well-being, specifically in the Singapore context. METHODS: Eighteen healthy older adults, older than 50 years of age, participated in the study. Due to practical limitations, a single-group pre-post study design was adopted. Participants completed the outcome measures before and after the training program. There were six weekly sessions in total (about 1.5 hours, once weekly). RESULTS: Participants experienced a significant improvement in their emotional well-being after training. However, there were no significant changes in participants' cognitive function or health-related quality of life. CONCLUSION: Our results suggest that Playback Theatre as a community program has potential to improve the mental and emotional well-being of older people. PMID- 29341377 TI - Halogen Bonding in Solution: Anion Recognition, Templated Self-Assembly, and Organocatalysis. AB - The halogen bond is a supramolecular interaction between a Lewis-acidic region of a covalently bound halogen and a Lewis base. It has been studied widely in silico and experimentally in the solid state; however, solution-phase applications have attracted enormous interest in the last few years. This Minireview highlights selected recent developments in halogen bond interactions in solution, with a focus on the use of receptors based on halogen bonds in anion recognition and sensing, anion-templated self-assembly, as well as in organocatalysis. PMID- 29341378 TI - Halloysite Nanotubes: Green Nanomaterial for Functional Organic-Inorganic Nanohybrids. AB - The unique one-dimensional nanoporous structure and the reactive external and internal surfaces make halloysite nanotube (HNT) an interesting nanomaterial for various applications. HNT is a green nanomaterial because it is easily available from abundant deposits in nature and is biocompatible with low cytotoxicity. After a brief introduction on the structure of HNT, recent advances in surface modification of HNT and its functional organic-inorganic nanohybrids including hybrid nanocontainers, flame retardant nanocomposites, dye removal adsorbents, liquid marbles, and superamphiphobic coatings are introduced. PMID- 29341379 TI - Erector spinae plane block for inguinal hernia repair in preterm infants. AB - Neuro-axial anesthesia has been the preferred technique for inguinal hernia repair when attempting to avoid general anesthesia in neonates and preterm infants. We present a case where an erector spinae plane block was used successfully for this surgery. Hemodynamic stability, minimal anesthetic requirements, and excellent pain control were documented. This block promises to be a valuable and safe alternative for inguinal hernia repair, accompanying the path of neuroprotective anesthesia. PMID- 29341380 TI - Tuning the Adsorption Energy of Methanol Molecules Along Ni-N-Doped Carbon Phase Boundaries by the Mott-Schottky Effect for Gas-Phase Methanol Dehydrogenation. AB - Engineering the adsorption of molecules on active sites is an integral and challenging part for the design of highly efficient transition-metal-based catalysts for methanol dehydrogenation. A Mott-Schottky catalyst composed of Ni nanoparticles and tailorable nitrogen-doped carbon-foam (Ni/NCF) and thus tunable adsorption energy is presented for highly efficient and selective dehydrogenation of gas-phase methanol to hydrogen and CO even under relatively high weight hourly space velocities (WHSV). Both theoretical and experimental results reveal the key role of the rectifying contact at the Ni/NCF boundaries in tailoring the electron density of Ni species and enhancing the absorption energies of methanol molecules, which leads to a remarkably high turnover frequency (TOF) value (356 mol methanol mol-1 Ni h-1 at 350 degrees C), outpacing previously reported bench-marked transition-metal catalysts 10-fold. PMID- 29341381 TI - Effect of ethanol on the antimicrobial properties of chlorhexidine over oral biofilm. AB - The aim of this study was to evaluate the effect of 95% ethanol irrigation, with 5 or 10 min of action, on the antibacterial properties of 2% chlorhexidine (CHX), on oral biofilm, evaluated with confocal laser scanning microscopy (CLSM). Oral biofilm development was induced in 80 sterilized bovine dentin blocks, distributed in two groups (5 or 10 min) and 4 subgroups, according to time and the solution used: Saline (SALINE5, SALINE10); Saline followed by CHX (SALINE/CHX5, SALINE/CHX10); Ethanol (ETHANOL5, ETHANOL10), Ethanol followed by CHX (ETHANOL/CHX5, ETHANOL/CHX10). The surface of the block was dyed with Live/Dead(r) BacLight. Images from different areas were analyzed by BioImage L program. The total biovolum (um3), biovolum of live cells (green), percentage of live cells of the thickness of the biofilm visualized in CLSM and on surface biofilm were evaluated. Total biovolum and biovolum of living cells showed similar results among the different groups (p > .05). The percentage of living cells in total thickness of the biofilm also was similar among the groups (p > .05), except ETHANOL5, SALINE/CHX10, ETHANOL10, and ETHANOL/CHX10 that showed lower percentage than SALINE5 (p < .05). The ETHANOL10 and ETHANOL/CHX10 also showed lower percentage of living cells than ETHANOL/CHX5 and SALINE10 (p < .05). In relation to biofilm surface, SALINE/CHX5, SALINE/CHX10, ETHANOL5, ETHANOL10, ETHANOL/CHX5, and ETHANOL/CHX10 showed a lower percentage of living cells percentage than SALINE5 and SALINE10 groups (p < .05). Therefore, ethanol has no effect on antimicrobial properties of 2% chlorhexidine, prior when used as endodontic irrigating solution. PMID- 29341382 TI - Synthesis, Crystal Analysis, and Optoelectronic Properties of Diazole Functionalized Acenes and Azaacenes. AB - Doping heteroatoms into the skeletons of parent acenes can provide more opportunities to construct novel thermally and photostable organic pi-conjugated semiconductors. Herein, a family of diazole-decorated acenes (APyS and APySe) and azaacenes (PyP, PyTh, PyPy, PyPh, and PyAP) have been successfully synthesized through the classical reactions. Single-crystal X-ray analyses showed that these as-formed diazole-modified derivatives adopted a twisted topology configuration, whereas the azaacenes display reclining-chair architectures, besides a twisted structure. All these compounds displayed yellow or red light in solution. Moreover, their electrochemical behaviors were also examined. We also found that the azaacenes exhibited a positive spectroscopic response to acid. PMID- 29341383 TI - CO2 -Triggered Switchable Hydrophilicity of a Heterogeneous Conjugated Polymer Photocatalyst for Enhanced Catalytic Activity in Water. AB - Water compatibility for heterogeneous photocatalysts has been pursued for energy and environmental applications. However, there exists a trade-off between hydrophilicity and recyclability of the photocatalyst. Herein, we report a conjugated polymer photocatalyst with tertiary amine terminals that reversibly binds CO2 in water, thereby generating switchable hydrophilicity. The CO2 assisted hydrophilicity boosted the photocatalytic efficiency in aqueous medium with minimum dosage. When CO2 was desorbed, the photocatalyst could be simply regenerated from reaction media, facilitating the repeated use of photocatalyst. Hydrophilicity/hydrophobicity control of the polymer photocatalyst was successfully showcased through a variety of organic photoredox reactions under visible-light irradiation in water. PMID- 29341384 TI - Influence of spore and carrier material surface hydrophobicity on decontamination efficacy with condensing hydrogen peroxide vapour. AB - AIMS: To investigate the influence of surface hydrophobicity of carrier material (CM) and bacterial spores of Bacillus subtilis SA 22 and Bacillus atrophaeus (DSM 675) on spore inactivation with condensing hydrogen peroxide (H2 O2 ) gas. METHODS AND RESULTS: Surface hydrophobicity of bacterial spores and CM was determined by means of contact angle measurement. Spores of B. subtilis showed water contact angles of 90 degrees , spores of B. atrophaeus showed water contact angles of 42 degrees . Above that, a resistance test against liquid H2 O2 at room temperature was conducted with resulting DH2O2 values of 101 s (B. subtilis) and 906 s (B. atrophaeus). The spores were deposited on CMs of different wettability (water contact angles of 115-30 degrees ). The spores were applied either individually or as an 1 : 1 mixture of both spore species. Exposure of biological indicators (BI) with 5200 ppm of gaseous H2 O2 at 70 degrees C treatment temperature for defined times up to 10 s led to inactivation kinetics. Surfaces with high hydrophobicity showed faster spore inactivation than surfaces with lower hydrophobicity for single-spore species. Regarding the mixed BI, better survival of hydrophobic spores was expected. However, this effect can only be seen as a slight trend and is not significant after 10 s. CONCLUSIONS: Surface hydrophobicity of CMs does influence the decontamination with gaseous, condensing H2 O2 . However, surface hydrophobicity of spores in a mixed population does only have a small influence on inactivation results. SIGNIFICANCE AND IMPACT OF THE STUDY: The intensity of spore inactivation depends more on other factors than on the wettability of the bacterial spores. However, hydrophobic surfaces lead to faster inactivation effects and should thus be preferred for aseptic packaging technology. PMID- 29341385 TI - Biological and behavioral correlates of body weight status among rural Northeast Brazilian schoolchildren. AB - OBJECTIVES: The increase in the prevalence of overweight/obesity in youth is a public health problem worldwide; however, few studies have investigated its prevalence and correlates in children from the Brazilian Northeast region rural zone. The purpose of this study was (1) to estimate the prevalence of children's weight status according to sex, age, and birth weight categories; and (2) to investigate the links between biological and behavioral factors and weight categories. METHODS: The sample comprises 501 children (248 girls), aged 7-10 years, classified as low weight, normal weight, overweight, and obese using body mass index cut-points. Predicted variables included birth weight, percentage of body fat (%BF), fat free mass (FFM), physical fitness, and gross motor coordination. RESULTS: Data showed differences among weight groups for the predictor variables. Results of the logistic regression revealed that sex, age, %BF, FFM, physical fitness, and motor coordination seem to be relevant predictors of children's weight status, while no significant effect was observed for birth weight. CONCLUSION: Children with lower physical fitness levels as well as those with lower motor coordination quotient are more likely to be overweight and/or obese. No significant relationship was observed between birth weight and weight status in childhood. Strategies to reduce childhood obesity should consider biological, behavioral, and also environmental predictors. PMID- 29341386 TI - At the core of reasoning: Dissociating deductive and non-deductive load. AB - In recent years, neuroimaging methods have been used to investigate how the human mind carries out deductive reasoning. According to some, the neural substrate of language is integral to deductive reasoning. According to others, deductive reasoning is supported by a language-independent distributed network including left frontopolar and frontomedial cortices. However, it has been suggested that activity in these frontal regions might instead reflect non-deductive factors such as working memory load and general cognitive difficulty. To address this issue, 20 healthy volunteers participated in an fMRI experiment in which they evaluated matched simple and complex deductive and non-deductive arguments in a 2 * 2 design. The contrast of complex versus simple deductive trials resulted in a pattern of activation closely matching previous work, including frontopolar and frontomedial "core" areas of deduction as well as other "cognitive support" areas in frontoparietal cortices. Conversely, the contrast of complex and simple non deductive trials resulted in a pattern of activation that does not include any of the aforementioned "core" areas. Direct comparison of the load effect across deductive and non-deductive trials further supports the view that activity in the regions previously interpreted as "core" to deductive reasoning cannot merely reflect non-deductive load, but instead might reflect processes specific to the deductive calculus. Finally, consistent with previous reports, the classical language areas in left inferior frontal gyrus and posterior temporal cortex do not appear to participate in deductive inference beyond their role in encoding stimuli presented in linguistic format. PMID- 29341387 TI - Health service utilisation amongst urban Aboriginal and Torres Strait Islander children aged younger than 5 years registered with a primary health-care service in South-East Queensland. AB - AIM: The majority of Australia's Aboriginal and/or Torres Strait Islander children live in urban areas; however, little is known about their health service use. We aimed to describe health service utilisation amongst a cohort of urban Aboriginal and/or Torres Strait Islander children aged <5 years. METHODS: We analysed health service utilisation data collected in an ongoing prospective cohort study of children aged <5 years registered with an Aboriginal-owned and operated primary health-care service. Enrolled children were followed monthly for 12 months, with data on health service utilisation collected at baseline and at each monthly follow-up. Health service utilisation rates, overall and by service provider and reason for presentation, were calculated and reported as incidence rates per 100 child-months with the corresponding 95% confidence intervals (CIs). RESULTS: Between February 2013 and November 2015, 180 children were enrolled, and 1541 child-months of observation were available for analysis. The overall incidence of health service utilisation was 52.5 per 100 child-months (95% CI 48.7-56.5); 81% of encounters were with general practitioners. Presentation rates were the highest for acute respiratory illnesses (30.7/100 child-months, 95% CI 27.8-33.9). CONCLUSIONS: In this community, acute respiratory illnesses are predominant causes of health service utilisation in young children. The health care utilisation profile of these children presents important opportunities for health promotion and intervention. PMID- 29341388 TI - Venous anastomosis by piggyback technique to avoid twisting of the pediatric en bloc kidney grafts. AB - This is the first report of using piggyback technique for the venous anastomosis in two pediatric recipients of small en bloc kidneys, which was found to be effective to avoid twisting of the grafts and vessels. The donors were aged 2 and 3 years with a body weight of 17 and 20 kg. The recipient age was 14 and 16 years with a body weight of 42 and 54 kg. The implantation was done extraperitoneally in the right iliac fossa. The donor's inferior vena cava was anastomosed to the recipient's distal caval vein side-to-side using 6-0 polydioxanone running suture as the piggyback technique, initially dealing with the short vena cava graft in the first case. At the end of the operation, the kidneys were positioned allowing the lateral aspect of each renal unit to face anteriorly as "closing the book." The cold ischemia time was 895 and 820 minutes, respectively. No vascular complication was observed postoperatively. The patients were discharged on POD 16 and POD 21 with an eGFR of 94 and 102 mL/min/1.73 m2, respectively. The graft function is stable during the 5- and 7-month follow-up. PMID- 29341389 TI - Detection of Escherichia coli in ready-to-eat fresh vegetables using broad-host range recombinant phages. AB - AIM: To construct a simple method to detect Escherichia coli in ready-to-eat fresh vegetables using broad-host-range recombinant phages. METHODS AND RESULTS: Firstly, a gene encoding cytochrome c peroxidase (CCP) chromogenic enzyme was inserted into genomes of wild-type phages IP008 and IP052 to produce recombinant phages IP008BK and IP052BK. They were then used in the production of the chromogenic enzyme (CCP) through infection into E. coli. The method was then examined in the colorimetric detection of E. coli K12 in broth, and its appearance was confirmed by a significant change in absorbance after a few minutes of the enzyme assay. Secondly, the protocol using the recombinant phages for the detection of E. coli in vegetables, that is, lettuce and mustard greens, was investigated. A low E. coli concentration at 4 CFU per g vegetable was detected within 16.5 h that is of a shorter duration than agar plate methods and in some commonly known phage-based methods. CONCLUSION: The existence of E. coli as a faecal contamination indicator in two types of ready-to-eat fresh vegetables, that is, lettuce and mustard greens, can be identified by the broad host-range recombinant phages. SIGNIFICANCE AND IMPACT OF STUDY: The method is simple and convenient since it enables the detection of E. coli without expensive apparatus. It is applicable to other types of food samples. PMID- 29341391 TI - Control of Protein Activity and Gene Expression by Cyclofen-OH Uncaging. AB - The use of light to control the expression of genes and the activity of proteins is a rapidly expanding field. Whereas many of these approaches use fusion between a light-activable protein and the protein of interest to control the activity of the latter, it is also possible to control the activity of a protein by uncaging a specific ligand. In that context, controlling the activation of a protein fused to the modified estrogen receptor (ERT) by uncaging its ligand cyclofen-OH has emerged as a generic and versatile method to control the activation of proteins quantitatively, quickly, and locally in a live organism. We present that approach and its uses in a variety of physiological contexts. PMID- 29341392 TI - Cannabis use is associated with reduced prevalence of progressive stages of alcoholic liver disease. AB - BACKGROUND: Abusive alcohol use has well-established health risks including causing liver disease (ALD) characterized by alcoholic steatosis (AS), steatohepatitis (AH), fibrosis, cirrhosis (AC) and hepatocellular carcinoma (HCC). Strikingly, a significant number of individuals who abuse alcohol also use Cannabis, which has seen increased legalization globally. While cannabis has demonstrated anti-inflammatory properties, its combined use with alcohol and the development of liver disease remain unclear. AIM: The aim of this study was to determine the effects of cannabis use on the incidence of liver disease in individuals who abuse alcohol. METHODS: We analysed the 2014 Healthcare Cost and Utilization Project-Nationwide Inpatient Sample (NIS) discharge records of patients 18 years and older, who had a past or current history of abusive alcohol use (n = 319 514). Using the International Classification of Disease, Ninth Edition codes, we studied the four distinct phases of progressive ALD with respect to three cannabis exposure groups: non-cannabis users (90.39%), non dependent cannabis users (8.26%) and dependent cannabis users (1.36%). We accounted for the complex survey sampling methodology and estimated the adjusted odds ratio (AOR) for developing AS, AH, AC and HCC with respect to cannabis use (SAS 9.4). RESULTS: Our study revealed that among alcohol users, individuals who additionally use cannabis (dependent and non-dependent cannabis use) showed significantly lower odds of developing AS, AH, AC and HCC (AOR: 0.55 [0.48-0.64], 0.57 [0.53-0.61], 0.45 [0.43-0.48] and 0.62 [0.51-0.76]). Furthermore, dependent users had significantly lower odds than non-dependent users for developing liver disease. CONCLUSIONS: Our findings suggest that cannabis use is associated with a reduced incidence of liver disease in alcoholics. PMID- 29341390 TI - Building a new research framework for social evolution: intralocus caste antagonism. AB - The breeding and non-breeding 'castes' of eusocial insects provide a striking example of role-specific selection, where each caste maximises fitness through different morphological, behavioural and physiological trait values. Typically, queens are long-lived egg-layers, while workers are short-lived, largely sterile foragers. Remarkably, the two castes are nevertheless produced by the same genome. The existence of inter-caste genetic correlations is a neglected consequence of this shared genome, potentially hindering the evolution of caste dimorphism: alleles that increase the productivity of queens may decrease the productivity of workers and vice versa, such that each caste is prevented from reaching optimal trait values. A likely consequence of this 'intralocus caste antagonism' should be the maintenance of genetic variation for fitness and maladaptation within castes (termed 'caste load'), analogous to the result of intralocus sexual antagonism. The aim of this review is to create a research framework for understanding caste antagonism, drawing in part upon conceptual similarities with sexual antagonism. By reviewing both the social insect and sexual antagonism literature, we highlight the current empirical evidence for caste antagonism, discuss social systems of interest, how antagonism might be resolved, and challenges for future research. We also introduce the idea that sexual and caste antagonism could interact, creating a three-way antagonism over gene expression. This includes unpacking the implications of haplodiploidy for the outcome of this complex interaction. PMID- 29341393 TI - Prognostic and therapeutic factors influencing the clinical outcome of hepatoblastoma after liver transplantation: A single-institute experience. AB - LT has contributed to an elevation in cure rates for patients with unresectable HB; however, patients with recurrent HB after LT have poor prognosis. To analyze the prognostic and therapeutic factors that influence the clinical outcome of patients with HB receiving LT, we retrospectively analyzed 24 patients with HB who underwent LT between 1997 and 2015. The 5-year OS rate of all patients was 69.6+/-9.7%. The 5-year OS rate of 11 patients receiving salvage LT for recurrent tumor after a primary resection was comparable to that of 13 patients receiving primary LT. Among 12 evaluable patients receiving primary LT, six of 10 patients with a decline of serum AFP >95% at LT are currently alive and in remission, whereas two patients with a decline of AFP <=95% experienced post-LT relapse. Among 9 evaluable patients receiving salvage LT, all three patients with any decline of AFP at LT are currently alive in remission, and three of six patients with no response to pre-LT salvage chemotherapy are also alive and in remission. Response to chemotherapy may be a reliable marker for prediction of post-LT relapse, even for patients receiving salvage LT. PMID- 29341394 TI - Hydrolysis by catalytic IgGs of microRNA specific for patients with schizophrenia. AB - Significant importance of autoimmune changes in the pathogenesis of schizophrenia (SCZ) is not established. Here, we present the first evidence that autoantibodies of 100% SCZ patients possess RNase activity: sCMP > poly(C) > poly(A) > yeast RNA. In addition, we have got an unexpected result: there was revealed site specific hydrolysis of four known SCZ specific microRNAs (miR-137, miR-9-5p, miR 219-2-3p, and miR-219a-5p) playing an important role in the regulation of several genes functioning. Three major of cleavage sites are located in the microRNA loops or duplex parts directly articulated with the loops. RNase abzymes can contribute to decreasing of microRNAs effects on the functioning of numerous genes and the products of their transcription. Therefore, abzymes with RNase activity may be to some extent important for the development of schizophrenia. (c) 2018 IUBMB Life, 70(2):153-164, 2018. PMID- 29341395 TI - Health of Southern Tasmanian 4- to 6-year-old children in out-of-home care compared to peers. AB - AIM: To compare the health of 4- to 6-year-old children in out-of-home care (OOHC) in Southern Tasmania with their peers. METHODS: Demographic and health data collection and prospective health assessment of all 4- to 6-year olds in OOHC in Southern Tasmania on 30 August 2011 was undertaken. Data were compared to Tasmanian and/or Australian peers. RESULTS: A total of 109 of 129 children aged 4 to 6 years were included in the study. Time in OOHC was on average 38 (range 0 76) months. Premature birth (18%), low birthweight (20%) and congenital malformations (10%) were more common compared to peers. Antenatal exposure to illicit or abused substances (71%), alcohol (51%) and cigarettes (79%) were very high. Vertically acquired hepatitis C was diagnosed in 2% with 33% exposed. Immunisation completion was 78% compared to 92.9% of Tasmanian peers. Obesity (11% vs. 6% Tasmanian children), hearing impairment (7% vs. 1% Tasmanian children) and dental caries (61% vs. 45% Tasmanian children) were all higher than peers. Hospitalisation due to injury was more than twice that of Tasmanian peers (32.1 vs. 12.6 per 1000 per year). Developmental delay was 50% on screening. Emotional or behavioural difficulties were seen in 54%. CONCLUSIONS: Children in OOHC have high health needs. Comprehensive health assessments offer an opportunity to better identify and manage these needs. High hepatitis C exposure in utero was unexpected. This study highlights the need for comprehensive health screening assessments for all children in OOHC. OOHC clinic data can be helpful in planning broad interventions for children in OOHC. PMID- 29341396 TI - Pediatrics and donor-derived disease transmission: The US OPTN experience. AB - PDDTE are tracked by the OPTN Ad Hoc DTAC. Specific evaluation of potential transmissions from pediatric deceased donors or the impact of donor-derived disease transmissions to pediatric organ recipients has not been previously undertaken. PDDTE reported to the DTAC between 2008 and 2013 were reviewed, characterized as proven, probable, possible, IWDT, unlikely, or excluded for both the whole event and each individual recipient. Pediatric donors and recipients were defined as being 0-17 years of age. Analysis was undertaken to characterize potential disease transmission from pediatric donors to adult or pediatric recipients and also to evaluate potential transmission from all donors to pediatric recipients. P/P cases were further analyzed. A total of 5238 pediatric deceased US donors accounted for 17 456 organ transplants during the study period; 103 PDDTE reports arose from these donors (2.0%). PDDTE were characterized as P/P (15%), possible (13%), IWDT (9%), unlikely, and excluded (63%). Disease was transmitted to 22 of 54 potentially exposed (adult and pediatric) recipients with six attributable deaths. An infectious pathogen accounted for 13/15 of the P/P PDDTE associated with pediatric donors, affecting 19 of 50 potentially exposed recipients and resulting in five deaths. Four separate viral pathogens from six donors accounted for P/P transmissions to 11 recipients with the unanticipated transmission of CMV most common. No pediatric donor transmitted HIV, HBV, or HCV. Bacteria, fungi, and parasites accounted for three (all staphylococci), three (Zygomycetes and Histoplasma), and two (both Toxoplasma) P/P transmissions from seven donors, respectively. From the recipient side, 11/11,188 pediatric recipient deceased and living donor transplants during the study period were associated with a P/P PDDTE (<0.1%) with infectious pathogens accounting for 9/11 P/P events. Infections were split among pathogen categories (bacteria 2, viruses 3, parasites 3, and fungi 1). Reporting rates of PDDTE involving pediatric donors were very low and similar to rates from all donors, with resulting P/P transmissions occurring in only 0.1% of exposed recipients, but transmissions were associated with six deaths. Rates of P/P transmission to pediatric recipients from any donor (<0.1%) were also very low and similar to that of all recipients. Additional studies are needed to compare the pattern and outcome of donor-derived disease transmission from and to pediatric and adult donor and recipients. PMID- 29341397 TI - Bi-allelic mutations of CCDC88C are a rare cause of severe congenital hydrocephalus. AB - Congenital or infantile hydrocephalus is caused by genetic and non-genetic factors and is highly heterogeneous in etiology. In recent studies, a limited number of genetic causes of hydrocephalus have been identified. To date, recessive mutations in the CCDC88C gene have been identified as a cause of non syndromic congenital hydrocephalus in three reported families. Here, we report the fourth known family with two affected individuals with congenital hydrocephalus due to a homozygous mutation in the CCDC88C gene identified by whole exome sequencing. Our two newly described children, as well as the previously published ones, all shared several features including severe infantile onset hydrocephalus, mild to severe intellectual delay, varying degrees of motor delay, and infantile onset seizures. All identified homozygous mutations in CCDC88C abolish the PDZ binding site necessary for proper CCDC88C protein function in the Wnt signaling pathway. Our report further establishes CCDC88C as one of the few known recessive causes of severe prenatal-onset hydrocephalus. Recognition of this syndrome has important diagnostic and genetic implications for families identified in the future. PMID- 29341398 TI - What are the outcomes of declining a public health service increased risk liver donor for patients on the liver transplant waiting list? AB - The tragedy of the national opioid epidemic has resulted in a significant increase in the number of opioid-related deaths and accordingly an increase in the number of potential donors designated Public Health Service (PHS) increased risk. Previous studies have demonstrated reluctance to use these PHS organs, and as a result, higher discard rates for these organs have been observed. All patients listed for liver transplantation in the United States from January 2005 to December 2016 were investigated. Patients on the waiting list were divided into 2 groups: those in which a PHS liver was used for transplantation (accepted PHS group) and those in which a PHS liver was declined and transplanted into a recipient lower on the match run (declined PHS group). Intention-to-treat patient survival from the time of PHS offer was significantly higher in the accepted PHS compared with the declined PHS group (P < 0.001). On Cox multivariate regression, declining a PHS donor liver was associated with a hazard ratio of 2.36 (95% confidence interval, 2.23-2.49; P < 0.001). For patients in which a PHS organ offer was declined, 11.6% died or were delisted for being too sick within the subsequent year. Donor liver allografts implanted in the accepted PHS group were of a lower donor risk index (1.28 versus 1.44) compared with the non-PHS organs that patients in the declined PHS group ultimately received if they underwent transplantation. In conclusion, there is a significantly higher survival for patients in which a PHS liver is accepted and used compared with those patients in which a PHS organ is declined. These data will help inform decisions about whether or not to accept a PHS donor liver for both patients and transplant professionals. Liver Transplantation 24 497-504 2018 AASLD. PMID- 29341399 TI - Activation of the Hog1 MAPK by the Ssk2/Ssk22 MAP3Ks, in the absence of the osmosensors, is not sufficient to trigger osmostress adaptation in Saccharomyces cerevisiae. AB - Yeast cells respond to hyperosmotic stress by activating the high-osmolarity glycerol (HOG) pathway, which consists of two branches, Hkr1/Msb2-Sho1 and Sln1, which trigger phosphorylation and nuclear internalization of the Hog1 mitogen activated protein kinase. In the nucleus, Hog1 regulates gene transcription and cell cycle progression, which allows the cell to respond and adapt to hyperosmotic conditions. This study demonstrates that the uncoupling of the known sensors of both branches of the pathway at the level of Ssk1 and Ste11 impairs cell growth in hyperosmotic medium. However, under these conditions, Hog1 was still phosphorylated and internalized into the nucleus, suggesting the existence of an alternative Hog1 activation mechanism. In the ssk1ste11 mutant, phosphorylated Hog1 failed to associate with chromatin and to activate transcription of canonical hyperosmolarity-responsive genes. Accordingly, Hog1 also failed to induce glycerol production at the levels of a wild-type strain. Inactivation of the Ptp2 phosphatase moderately rescued growth impairment of the ssk1ste11 mutant under hyperosmotic conditions, indicating that downregulation of the HOG pathway only partially explains the phenotypes displayed by the ssk1ste11 mutant. Cell cycle defects were also observed in response to stress when Hog1 was phosphorylated in the ssk1ste11 mutant. Taken together, these observations indicate that Hog1 phosphorylation by noncanonical upstream mechanisms is not sufficient to trigger a protective response to hyperosmotic stress. PMID- 29341400 TI - Are trans diagnostic models of eating disorders fit for purpose? A consideration of the evidence for food addiction. AB - Explanatory models for eating disorders have changed over time to account for changing clinical presentations. The transdiagnostic model evolved from the maintenance model, which provided the framework for cognitive behavioural therapy for bulimia nervosa. However, for many individuals (especially those at the extreme ends of the weight spectrum), this account does not fully fit. New evidence generated from research framed within the food addiction hypothesis is synthesized here into a model that can explain recurrent binge eating behaviour. New interventions that target core maintenance elements identified within the model may be useful additions to a complex model of treatment for eating disorders. PMID- 29341401 TI - The prediction probabilities for emergence from sevoflurane anesthesia in children: A comparison of the perfusion index and the bispectral index. AB - BACKGROUND: Predicting recovery of consciousness is one of the most essential functions of anesthesia depth monitors in anesthesia practice. Perfusion index and bispectral index are 2 indicators of the anesthesia depth monitoring with different working principles. The progression of the anesthesia emergence stages reflected by those monitors has not been well understood, especially in pediatric patients. The goals of this study were to compare the prediction probabilities of perfusion index and bispectral index in predicting awakening and in differentiating the different levels of arousal during emergence after sevoflurane anesthesia in children undergoing open inguinal hernia repairs. METHODS: Forty-five patients, aged 1 to 5 years, ASA Status I or II and scheduled for elective open inguinal hernia repairs under general anesthesia were enrolled. The perfusion index and bispectral index were monitored simultaneously during anesthesia recovery. The University of Michigan Sedation Scale was applied to evaluate the clinical arousal levels during emergence. The prediction probability was used to assess the performance of perfusion index and bispectral index in predicting awakening and distinguishing different levels of arousal corresponding to the University of Michigan Sedation Scale during recovery. RESULTS: The prediction probability of perfusion index (PkPI-Awakening = .81, 95% CI 0.73 0.89) in differentiating full consciousness from unconsciousness during recovery was comparable to that of bispectral index (PkBIS- Awakening = .86, 95% CI 0.79 0.92) (P = .47). The prediction probability for perfusion index (PkPI-UMSS = .61, 95% CI 0.55-0.73) and bispectral index (PkBIS-UMSS = .64, 95% CI 0.53-0.69) had similar performance in distinguishing different University of Michigan Sedation Scale levels. CONCLUSION: Both the perfusion index and bispectral index performed comparably well in predicting awakening and different arousal levels when emerging from sevoflurane anesthesia in children. PMID- 29341403 TI - Robotic low anterior resection of rectal cancer with partial resection of urinary bladder and reconstruction - a video vignette. PMID- 29341402 TI - Isotope Substitution of Promiscuous Alcohol Dehydrogenase Reveals the Origin of Substrate Preference in the Transition State. AB - The origin of substrate preference in promiscuous enzymes was investigated by enzyme isotope labelling of the alcohol dehydrogenase from Geobacillus stearothermophilus (BsADH). At physiological temperature, protein dynamic coupling to the reaction coordinate was insignificant. However, the extent of dynamic coupling was highly substrate-dependent at lower temperatures. For benzyl alcohol, an enzyme isotope effect larger than unity was observed, whereas the enzyme isotope effect was close to unity for isopropanol. Frequency motion analysis on the transition states revealed that residues surrounding the active site undergo substantial displacement during catalysis for sterically bulky alcohols. BsADH prefers smaller substrates, which cause less protein friction along the reaction coordinate and reduced frequencies of dynamic recrossing. This hypothesis allows a prediction of the trend of enzyme isotope effects for a wide variety of substrates. PMID- 29341404 TI - Intra- and inter-subject variability for increases in serum ketone bodies in patients with type 2 diabetes treated with the sodium glucose co-transporter 2 inhibitor canagliflozin. AB - Sodium glucose co-transporter 2 (SGLT2) inhibitors have been associated with increased serum ketone body levels in patients with type 2 diabetes mellitus (T2DM). In the present analysis we evaluated serum ketone body levels and variability in 1278 Japanese patients with T2DM treated with canagliflozin 100 or 200 mg. Similar mean increases in ketone body concentrations of ~2-fold were seen with both canagliflozin doses. The median (interquartile range) percent change from baseline was 62% (0;180) for acetoacetate and 78% (2;236) for beta hydroxybutyrate. Approximately two-thirds of the variability in each ketone measure was attributed to intra-subject variability. Intra-subject variability was higher for serum ketones than other metabolites. Patients in the lowest response tertile exhibited no increase in ketones. Those in the highest response tertile tended to be male and have higher fasting plasma glucose levels, lower insulin levels, and longer T2DM duration at baseline. Moreover, changes in serum ketones were not fully explained by changes in plasma fatty acids, suggesting downstream effects of SGLT2 inhibition on hepatic metabolism that favour ketogenesis. In summary, increases in serum ketone bodies with canagliflozin were greater and more variable than changes in other metabolic measures in Japanese patients with T2DM. PMID- 29341405 TI - Haemophilia of the third age. PMID- 29341406 TI - Biosimilars and haemophilia. PMID- 29341407 TI - Corrigendum. PMID- 29341408 TI - IR Spectrum and Structure of Protonated Monosilanol: Dative Bonding between Water and the Silylium Ion. AB - We report the spectroscopic characterization of protonated monosilanol (SiH3 OH2+ ) isolated in the gas phase, thus providing the first experimental determination of the structure and bonding of a member of the elusive silanol family. The SiH3 OH2+ ion is generated in a silane/water plasma expansion, and its structure is derived from the IR photodissociation (IRPD) spectrum of its Ar cluster measured in a tandem mass spectrometer. The chemical bonding in SiH3 OH2+ is analyzed by density functional theory (DFT) calculations, providing detailed insight into the nature of the dative H3 Si+ -OH2 bond. Comparison with protonated methanol illustrates the differences in bonding between carbon and silicon, which are mainly related to their different electronegativity and the different energy of the vacant valence pz orbital of SiH3+ and CH3+ . PMID- 29341409 TI - Recognition of i-IF/TA as a component of the T cell-mediated rejection spectrum: Unselected population approach vs random case selection. PMID- 29341410 TI - Eating down the food chain: generalism is not an evolutionary dead end for herbivores. AB - The role of trophic specialisation in taxonomic diversification remains unclear. Plant specialists diversify faster than omnivores and animalivores, but at shorter macroevolutionary scales this pattern sometimes reverses. Here, we estimate the effect of diet diversification on speciation rates in noctilionoid bats, controlling for tree shape, rate heterogeneity and macroevolutionary regimes. We hypothesise that niche subdivision among herbivores positively relates to speciation rates, differing between macroevolutionary regimes. We found the rate at which new herbivorous lineages originate decreases as rates of diet evolution increase. Herbivores experience higher speciation rates, but generalist herbivores and predominantly herbivorous omnivores speciate faster than specialised herbivores, omnivores and animalivores. Generalised herbivory is not a dead end. We show that analysing ecological traits and diversification requires accounting for macroevolutionary regimes and within- and between-clade variation in evolutionary rates. Our approach overcomes the high false-positive rates of other methods and illuminates the roles of herbivory and specialisation in speciation. PMID- 29341411 TI - The effect of recanalization on long-term neurological outcome after cerebral venous thrombosis. AB - : Essentials The role of cerebral venous thrombosis (CVT) recanalization on neurologic outcome is still debated. We studied a large cohort of 508 CVT patients with 419 patient years of radiological follow-up. Recanalization rate is high during the first months after CVT and neurologic outcome is favorable. High recanalization grade of CVT independently predicts good neurological outcome. SUMMARY: Background Studies with limited sample size and with discordant results described the recanalization time-course of cerebral venous thrombosis (CVT). The neurological outcome after a first episode of CVT is good, but the role of recanalization on neurological dependence is still debated. Objectives The aim of the study is to assess the recanalization rate after cerebral venous thrombosis (CVT) and its prognostic role in long-term neurological outcome. Patients/Methods In a retrospective observational multicenter cohort study, patients with an acute first episode of CVT with at least one available imaging test during follow-up were enrolled. Patency status of the vessels was categorized as complete, partial or not recanalized. Neurological outcome was defined using the modified Rankin scale (mRS) as good (mRS = 0-1) or poor (mRS = 2-6). Results Five-hundred and eight patients (median [IQR] age, 39 [28.5-49] years; 26% male) were included. Complete or partial recanalization was not differently represented in patients undergoing scans at different periods of time (from 28-day to 3 month-period up to a 1-3 year-period). mRS at the time of follow-up imaging was available in 483 patients; 92.8% of them had a mRS of 0-1. CVT recanalization (odds ratio [OR], 2.56; 95% confidence interval [CI], 1.59-4.13) was positively associated, whereas cancer (OR, 0.29; 95% CI, 0.09-0.88), and personal history of venous thromboembolism (VTE) (OR, 0.36; 95% CI, 0.14-0.92) were negatively associated as independent predictors of favorable (mRS = 0-1) outcome at follow-up. Conclusions Most patients with a first CVT had complete or partial recanalization at follow up. Recanalization was independently associated with a favorable neurological outcome. PMID- 29341412 TI - Three-dimensional neuromelanin-sensitive magnetic resonance imaging of the substantia nigra in Parkinson's disease. AB - BACKGROUND AND PURPOSE: The aim was to investigate the diagnostic utility of signal intensity measurement of the substantia nigra pars compacta (SNc) using three-dimensional (3D) neuromelanin-sensitive magnetic resonance imaging (MRI), for discrimination of patients with Parkinson's disease (PD) from healthy controls. METHODS: T1-weighted neuromelanin-sensitive images of 16 patients with PD and 15 controls were quantitatively analyzed by placing circular 10 mm2 regions of interest over the central and lateral parts of the bilateral SNc and anterior to the cerebral aqueduct at three levels of the midbrain. Signal intensities and contrast ratios (CRs) were calculated, after which significant differences, correlations, sensitivity and specificity were calculated. RESULTS: The CRs of the central and lateral SNc were significantly lower in patients with PD. Lateral CRs were lower than the central CRs in both groups and significantly correlated with duration of illness. CRs of central and lateral parts of the SNc also correlated with the Unified Parkinson's Disease Rating Scale III OFF state scores. Receiver operating characteristic analysis revealed lateral CRs to be more sensitive and central CRs to be more specific for the discrimination of patients with PD from controls. CONCLUSIONS: Contrast ratio analysis of the SNc using 3D neuromelanin-sensitive MRI may serve as a quick and accurate tool to discern between patients with PD and healthy controls. PMID- 29341413 TI - Effects of health insurance coverage on risky behaviors. AB - Prior to implementation of the Patient Protection and Affordable Care Act, dependent health insurance coverage was typically available only for young adults under the age of 19. As of September 2010, the Affordable Care Act extended dependent health insurance coverage to include young adults up to the age of 26. I use the National Health Interview Survey for the sample period from 2011 to 2013 to analyze the causal relationship between the expansion of dependent coverage and risky behaviors including smoking and drinking as well as preventive care. I employ a regression discontinuity design to estimate the causal effect of health insurance coverage and overcome the endogeneity problem between insurance status and risky behaviors. When young adults become 26 years old, they are 7 to 10 percentage points more likely to lose health insurance than young adults under the age of 26. Although young adults over the age of 26 are generally aged out of insurance coverage, presence or absence of health insurance does not affect their smoking and drinking behaviors and their access to preventive care. PMID- 29341414 TI - Post-translational incorporation of 3,4-dihydroxyphenylalanine into the C terminus of alpha-tubulin in living cells. AB - The C-terminal tyrosine (Tyr) of the alpha-tubulin chain is subjected to post translational removal and readdition in a process termed the "detyrosination/tyrosination cycle". We showed in previous studies using soluble rat brain extracts that l-3,4-dihydroxyphenylalanine (l-Dopa) is incorporated into the same site as Tyr. We now demonstrate that l-Dopa incorporation into tubulin also occurs in living cells. We detected such incorporation by determining the "tyrosination state" of tubulin before and after incubation of cells in the presence of l-Dopa. The presence of a tubulin isospecies following l Dopa incubation that was not recognized by antibodies specific to Tyr- and deTyr tubulin was presumed to reflect formation of Dopa-tubulin. l-Dopa was identified by HPLC as the C-terminal compound bound to alpha-tubulin. l-Dopa incorporation into tubulin was observed in Neuro 2A cells and several other cell lines, and was not due to de novo protein biosynthesis. Dopa-tubulin had microtubule-forming capability similar to that of Tyr- and deTyr-tubulin. l-Dopa incorporation into tubulin did not notably alter cell viability, morphology, or proliferation rate. CAD cells (a neuron-like cell line derived from mouse brain) are easily cultured under differentiating and nondifferentiating conditions, and can be treated with l-Dopa. Treatment of CAD cells with l-Dopa and consequent increase in l-Dopa tubulin resulted in reduction of microtubule dynamics in neurite-like processes. PMID- 29341415 TI - Operational sex ratio predicts the opportunity and direction of sexual selection across animals. AB - The operational sex ratio (OSR) has long been assumed to be a key ecological factor determining the opportunity and direction of sexual selection. However, recent theoretical work has challenged this view, arguing that a biased OSR does not necessarily result in greater monopolisation of mates and therefore stronger sexual selection in the mate-limited sex. Hence, the role of the OSR for shaping animal mating systems remains a conundrum in sexual selection research. Here we took a meta-analytic approach to test whether OSR explains interspecific variation in sexual selection metrics across a broad range of animal taxa. Our results demonstrate that the OSR predicts the opportunity for sexual selection in males and the direction of sexual selection in terms of sex differences in both the opportunity for sexual selection and the Bateman gradient (i.e. the selection differential of mating success), as predicted by classic theory. PMID- 29341416 TI - Resveratrol Influences Pancreatic Islets by Opposing Effects on Electrical Activity and Insulin Release. AB - SCOPE: Resveratrol is suggested to improve glycemic control by activation of sirtuin 1 (SIRT1) and has already been tested clinically. Our investigation characterizes the targets of resveratrol in pancreatic beta cells and their contribution to short- and long-term effects on insulin secretion. METHODS AND RESULTS: Islets or beta cells are isolated from C57BL/6N mice. Electrophysiology is performed with microelectrode arrays and patch-clamp technique, insulin secretion and content are determined by radioimmunoassay, cAMP is measured by enzyme-linked immunosorbent assay, and cytosolic Ca2+ concentration by fluorescence methods. Resveratrol (25 MUmol L-1 ) elevates [Ca2+ ]c and potentiates glucose-stimulated insulin secretion. These effects are associated with increased intracellular cAMP and are sensitive to the SIRT1 blocker Ex-527. Inhibition of EPAC1 by CE3F4 also abolishes the stimulatory effect of resveratrol. The underlying mechanism does not involve membrane depolarization as resveratrol even reduces electrical activity despite blocking KATP channels. Importantly, after prolonged exposure to resveratrol (14 days), the beneficial influence of the polyphenol on insulin release is lost. CONCLUSION: Resveratrol addresses multiple targets in pancreatic islets. Potentiation of insulin secretion is mediated by SIRT1-dependent activation of cAMP/EPAC1. Considering resveratrol as therapeutic supplement for patients with type 2 diabetes mellitus, the inhibitory influence on electrical excitability attenuates positive effects. PMID- 29341417 TI - Synthesis and Characterization of Photoactivatable Doxycycline Analogues Bearing Two-Photon-Sensitive Photoremovable Groups Suitable for Light-Induced Gene Expression. AB - We report the synthesis and photolytic properties of caged 9-aminodoxycycline derivatives modified with 2-{4'-bis-[2-(2methoxyethoxy)ethyl]-4-nitrobiphenyl-3 yl}prop-1-oxy (EANBP) and PEG7-ylated (7-diethylamino-2-oxo-2H-chromen-4 yl)methyl (PEG7-DEACM) groups. 9-Aminodoxycycline is a tetracycline analogue capable of activating transcription through the inducible TetOn transgene expression system and can be regioselectively coupled to two-photon-sensitive photo-removable protecting groups by carbamoylation. The EANBP-based caged 9 aminodoxycycline showed complex photochemical reactions but did release 10 % of 9 aminodoxycycline. However, 9-(PEG7-DEACMamino)doxycycline exhibited excellent photolysis efficiency at 405 nm with quantitative release of 9-aminodoxycycline and a 0.21 uncaging quantum yield. Thanks to the good two-photon sensitivity of the DEACM chromophore, 9-aminodoxycycline release by two-photon photolysis is possible, with calculated action cross-sections of up to 4.0 GM at 740 nm. Therefore, 9-(PEG7-DEACMamino)doxycycline represents a very attractive tool for the development of a light-induced gene expression method in living cells. PMID- 29341418 TI - Hand-held, clinical dual mode ultrasound - photoacoustic imaging of rat urinary bladder and its applications. AB - Urinary bladder imaging is critical to diagnose urinary tract disorders, and bladder cancer. There is a great need for safe, non-invasive, and sensitive imaging technique which enables bladder imaging. Photoacoustic imaging is a rapidly growing imaging technique for various biological applications. It can be combined with clinical ultrasound imaging system for hand-held, dual modal ultrasound-photoacoustic real-time imaging. Structural (bladder wall) and functional (accretion of nanoparticles) bladder imaging is shown here with combined ultrasound and photoacoustic imaging in rats. Photoacoustic images of bladder wall is shown using black ink as the contrast agent. Chicken tissues were stacked on the abdomen of the animal to demonstrate the feasibility of photoacoustic imaging till a depth of 2 cm. Also, the feasibility of photoacoustic imaging for a common bladder disorder, vesicoureteral reflux is studied using urinary tract mimicking phantom. It is also shown that a clinical ultrasound system can be used for photoacoustic imaging of non-invasive clearance study of gold nanorods from circulation by monitoring the gradual accumulation of the gold nanorods in the bladder. The time taken for accumulation of nanorods in the bladder can be used as an indicator of the clearance rate of the nanoparticle circulation from the body. PMID- 29341419 TI - Fatty liver index predicts incident diabetes in a Japanese general population with and without impaired fasting glucose. AB - AIM: Fatty liver is associated with the development of diabetes. However, to our knowledge, no study has examined the relationship between the fatty liver index (FLI), calculated scores of hepatic steatosis, and the development of diabetes among individuals without impaired fasting glucose (IFG). We aimed to examine whether FLI predicts the development of diabetes in individuals with and without IFG in a Japanese general population. METHODS: We selected 1498 men and 2941 women who participated in Specific Health Checkups in Japan. We divided all participants into six groups according to tertiles of FLI (low, moderate, and high) and the presence or absence of IFG, by sex. We calculated hazard ratios for incident diabetes for each group using a Cox proportional hazard model, adjusting for potential confounders. RESULTS: During a mean follow-up period of 3.0 years, 176 cases of diabetes in men and 320 cases in women were identified. Compared with the low FLI group without IFG, the high FLI group without IFG was significantly associated with incident diabetes in both men (hazard ratio, 1.90; 95% confidence interval, 1.08-3.36) and women (hazard ratio, 1.72; 95% confidence interval, 1.18-2.51). All IFG groups were significantly associated with incident diabetes regardless of FLI levels. CONCLUSIONS: Our results showed that FLI is associated with the development of diabetes regardless of sex and the presence or absence of IFG, and that it may be a useful predictor of future risk of incident diabetes even in individuals without IFG. PMID- 29341420 TI - Transgenic mice specifically expressing amphiregulin in white adipose tissue showed less adipose tissue mass. AB - To determine adipocytokines that play a regulatory role during obesity development, we explored the genes that encode growth factors and investigated the physiological functions for adipose tissue development. Here, we isolated amphiregulin (Areg) gene whose expression was significantly up-regulated in obese adipose tissues. Areg mRNA level was positively correlated with macrophage marker gene expression in adipose tissues in vivo. Unexpectedly, Areg transgenic mice showed less adipose tissue mass with increased mRNA expression levels of Tnf alpha and peroxisome proliferator-activated receptor gamma coactivator 1alpha (Pgc-1alpha) and delayed white adipose tissue development during the convalescent stage in a dextran sodium sulfate-induced colitis model. This study showed that Areg mRNA expression was significantly up-regulated in obese adipose tissues and over-expression of Areg in white adipose tissue caused less adipose tissue mass. PMID- 29341421 TI - A Stable Room-Temperature Luminescent Biphenylmethyl Radical. AB - There is only one family of room-temperature luminescent radicals, the triphenylmethyl radicals, to date. Herein, we synthesize a new stable room temperature luminescent radical, (N-carbazolyl)bis(2,4,6-tirchlorophenyl)methyl radical (CzBTM), which has improved properties compared to the triphenylmethyl radicals. X-ray crystallography, electron paramagnetic resonance spectroscopy, and magnetic susceptibility measurements confirmed the radical structure. CzBTM shows room-temperature deep-red to near-infrared emission in various solutions. Both thermal and photo stability were significantly enhanced by the replacement of trichlorobenzene by the carbazole moiety. The electroluminescence results of CzBTM verify its potential application to circumvent the problem of triplet harvesting in traditional fluorescent OLEDs. A new family of stable luminescent radicals based on CzBTM is anticipated. PMID- 29341422 TI - Synthesis and luminescence properties of cubic-shaped Ca1-x TiO3 :Eu3+ particles. AB - In this article Ca1-x TiO3 :xEu3+ single crystalline particles with a cubic morphology and average size of 248 to 815 nm were synthesized by a solvothermal method. The structural and optical properties of the Ca1-x TiO3 :xEu3+ cubes were investigated, the formation mechanism of the cubes were analyzed and discussed, and the influence of Eu doping content and cubic size on the photoluminescence were examined. The differences in the photoluminescence between Ca1-x TiO3 :xEu3+ cubic crystals and nanoparticles was analyzed. It was found that an addition of a small amount of water can substantially reduce the size of the cubes. An obvious red emission band centered at 615 nm was observed under the excitation at 395 nm for the cubes. Our results demonstrate CaTiO3 cubes are good host materials for designing red phosphors. PMID- 29341423 TI - Variable immune deficiency related to deletion size in chromosome 22q11.2 deletion syndrome. AB - The clinical features of 22q11.2 deletion syndrome include virtually every organ of the body. This review will focus on the immune system and the differences related to deletion breakpoints. A hypoplastic thymus was one of the first features described in this syndrome and low T cell counts, as a consequence of thymic hypoplasia, are the most commonly described immunologic feature. These are most prominently seen in early childhood and can be associated with increased persistence of viruses. Later in life, evidence of T cell exhaustion may be seen and secondary deficiencies of antibody function have been described. The relationship of the immunodeficiency to the deletion breakpoints has been understudied due to the infrequent analysis of people carrying smaller deletions. This manuscript will review the immune deficiency in 22q11.2 deletion syndrome and describe differences in the T cell counts related to the deletion breakpoints. Distal, non-TBX1 inclusive deletions, were found to be associated with better T cell counts. Another new finding is the relative preservation of T cell counts in those patients with a 22q11.2 duplication. PMID- 29341424 TI - Fetal ultrasonographic findings including cerebral hyperechogenicity in a patient with non-lethal form of Raine syndrome. AB - Raine syndrome is a rare osteosclerotic bone dysplasia characterized by craniofacial anomalies and intracranial calcification. Most patients with Raine syndrome are of Arab ancestry and die during the neonatal period. We herein report a Japanese patient with non-lethal Raine syndrome who presented with characteristic cerebral hyperechogenicity and a hypoplastic nose by fetal ultrasonography. She was admitted to the NICU due to pyriform aperture stenosis. Craniofacial abnormalities, intracranial calcification, osteosclerosis, chondrodysplasia punctata, and a mutation of FAM20C was identified. She was subsequently discharged without surgical intervention and is now 2 years old with mild neurodevelopmental delays. Images of cerebral hyperechogenicity by fetal ultrasonography in a non-lethal case were described herein for the first time. This patient represents a rare occurrence of a child with Raine syndrome born to Japanese parents and confirms that this syndrome is not always lethal. Even if Raine syndrome is suspected in a fetus due to cerebral hyperechogenicity and a hypoplastic nose, cerebral hyperechogenicity without pulmonary hypoplasia does not always predict lethality or severe neurodevelopmental delays. The information provided herein will be useful for prenatal counseling. PMID- 29341425 TI - Synthesis of novel Dy3+ activated Ba2 CaZn2 Si6 O17 phosphors for white light emitting diodes. AB - Dysprosium ion (Dy3+ ) activated Ba2 CaZn2 Si6 O17 phosphors were synthesized using high temperature solid-state reaction method. Powder X-ray diffraction (PXRD) analysis confirmed the phase formation of the as-prepared phosphors. Scanning electron microscopy (SEM) analysis disclosed an agglomeration of particles with an irregular morphology. Under 350 nm excitation, the emission spectrum of Dy3+ ions showed bands at 481 nm (blue), 577 nm (yellow) and 674 nm (red). The influence of the Dy3+ concentration on its emission intensity was investigated. The optimum concentration of Dy3+ ions in the Ba2 CaZn2 Si6 O17 :Dy3+ phosphors were found to be x = 0.06. The critical energy transfer distance was calculated. The fluorescence lifetime was also determined for Ba2 CaZn2 Si6 O17 :0.06Dy3+ . The Commission International deI'Eclairage (CIE) chromaticity coordinates of the phosphor were calculated to be x = 0.304, y = 0.382. The activation energy for the thermal quenching was calculated to be 0.168 eV. These results indicated that the Ba2 CaZn2 Si6 O17 :Dy3+ phosphor might be a potential candidate for near ultraviolet (NUV)-based white light-emitting diodes. PMID- 29341426 TI - Biomechanical, histological, and computed X-ray tomographic analyses of hydroxyapatite coated PEEK implants in an extended healing model in rabbit. AB - A nanosized hydroxyapatite (HA) modification on polyetheretherketone (PEEK) using a novel spin coating technique was investigated in a rabbit model. Spin coating technique creates a 20-40 nm thick layer of nanosized HA particles with similar shape, size, and crystallinity as human bone. Some implants were designed with a perforating hole in the apical region to mimic a fusion chamber of a spinal implant. The coating nano-structures were assessed using a scanning electron microscope. The in vivo response to HA-PEEK was compared to untreated PEEK with respect to removal torque, histomorphometry, and computed microtomography. The HA coated and pure PEEK implants were inserted in the tibia and femur bone according to simple randomization. The rabbits were sacrificed 20 weeks after implantation. Removal torque analysis showed significantly higher values for HA-PEEK. Qualitative histological evaluation revealed an intimate contact between PEEK and the bone at the threads and perforated hole. Histomorphometric assessment showed higher bone-implant and bone area values for HA-PEEK but without statistical significance. The effect of the HA coating showed most prominent effect in the removal torque which may be correlated to an alteration in the bone quality around the HA-PEEK implants. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1440-1447, 2018. PMID- 29341427 TI - LC/MS-based Intact IgG and Released Glycan Analysis for Bioprocessing Applications. AB - Robust plate based antibody glycan analysis platforms are urgently needed for biopharmaceutical development and manufacturing as well as for clinical biomarker research. A 96-well plate based workflow has been developed to analyze both intact IgG antibodies and released N-glycans using an Orbitrap Fusion Mass Spectrometer and an LC/MS method on the Waters UNIFI platform. Here, such a workflow including protein A purification, PNGaseF digestion, 2-AB labeling, and SPE clean-up is described. The measured IgG glycan profile is consistent with that obtained from non-plate based method and commercial kit and has the advantage of less hands-on time. Also the application of the workflow in cell culture monitoring and clonal selection work is demonstrated. Apart from checking the major glycan structure changes among clones, post translational modifications (PTMs) such as C-terminal lysine residue clipping and N-terminal pyroglutamic acid formation can also be deduced from the workflow. PMID- 29341428 TI - Epigenetic Silencing of TAP1 in Aldefluor+ Breast Cancer Stem Cells Contributes to Their Enhanced Immune Evasion. AB - Avoiding detection and destruction by immune cells is key for tumor initiation and progression. The important role of cancer stem cells (CSCs) in tumor initiation has been well established, yet their ability to evade immune detection and targeting is only partly understood. To investigate the ability of breast CSCs to evade immune detection, we identified a highly tumorigenic population in a spontaneous murine mammary tumor based on increased aldehyde dehydrogenase activity. We performed tumor growth studies in immunocompetent and immunocompromised mice. In immunocompetent mice, growth of the spontaneous mammary tumor was restricted; however, the Aldefluor+ population was expanded, suggesting inherent resistance mechanisms. Gene expression analysis of the sorted tumor cells revealed that the Aldefluor+ tumor cells has decreased expression of transporter associated with antigen processing (TAP) genes and co-stimulatory molecule CD80, which would decrease susceptibility to T cells. Similarly, the Aldefluor+ population of patient tumors and 4T1 murine mammary cells had decreased expression of TAP and co-stimulatory molecule genes. In contrast, breast CSCs identified by CD44+ CD24- do not have decreased expression of these genes, but do have increased expression of C-X-C chemokine receptor type 4. Decitabine treatment and bisulfite pyrosequencing suggests that DNA hypermethylation contributes to decreased TAP gene expression in Aldefluor+ CSCs. TAP1 knockdown resulted in increased tumor growth of 4T1 cells in immunocompetent mice. Together, this suggests immune evasion mechanisms in breast CSCs are marker specific and epigenetic silencing of TAP1 in Aldefluor+ breast CSCs contributes to their enhanced survival under immune pressure. Stem Cells 2018;36:641-654. PMID- 29341430 TI - Tuberculosis vaccines: Opportunities and challenges. AB - Tuberculosis (TB) is a serious disease around the world. Bacillus Calmette-Guerin (BCG) is the only TB vaccine licensed for use in human beings, and is effective in protecting infants and children against severe miliary and meningeal TB. However, BCG's protective efficacy is variable in adults. Novel TB vaccine candidates being developed include whole-cell vaccines (recombinant BCG (rBCG), attenuated Mycobacterium tuberculosis, killed M. tuberculosis or Mycobacterium vaccae), adjuvanted protein subunit vaccines, viral vector-delivered subunit vaccines, plasmid DNA vaccines, RNA-based vaccines etc. At least 12 novel TB vaccine candidates are now in clinical trials, including killed M. vaccae, rBCG DeltaureC::hly, adjuvanted fusion proteins M72 and H56 and viral vectored MVA85A. Unfortunately, in TB, there are no correlates of vaccine-induced protection, although cell-mediated immune responses such as interferon-gamma (IFN-gamma) production are widely used to assess vaccine's immunogenicity. Recent studies suggested that central memory T cells and local secreted IgA correlated with protection against TB disease. Clinical TB vaccine efficacy trials should invest in identifying correlates of protection, and evaluate new TB biomarkers emerging from human and animal studies. Accumulating new knowledge on M. tuberculosis antigens and immune profiles correlating with protection or disease risk will be of great help in designing next generation of TB vaccines. PMID- 29341431 TI - Risk of infantile hemangiomas in the offspring of women with autoimmune disease and the pathogenic implications of these lesions. AB - The purpose of this study was to analyze the risk of maternal autoimmune disease or associated treatments on infantile hemangiomas (IHs), a common benign vascular tumor in infants, and to better understand how maternal chronic inflammation may play a factor in the pathogenesis of these lesions. Eligible women from the United States and Canada who enrolled before 19 weeks' gestation and delivered at least one live born infant were recruited as part of the Organization of Teratology Information Specialists (OTIS) Autoimmune Disease in Pregnancy Project from 2004-2013. A total of 51/969 (5.3%) and 8/240 (3.3%) infants with IH were born to mothers with and without autoimmune disease, respectively (OR 1.61; 95%CI, 0.75-.44). The presence of ulcerative colitis (UC) in the mother was significantly associated with IH in the child (OR 3.46; 95%CI, 1.29-9.26). The five largest IH occurred within the autoimmune disease cohort and to women taking a biologic medication. These results imply that UC may be a risk factor for IH development, and that chronic inflammation may influence the development of these lesions. This potential link between IH and autoimmune disease warrants further investigation. PMID- 29341433 TI - Corrigendum. PMID- 29341432 TI - Duck "beak atrophy and dwarfism syndrome" disease complex: Interplay of novel goose parvovirus-related virus and duck circovirus? AB - As a newly emerged infectious disease, duck "beak atrophy and dwarfism syndrome (BADS)" disease has caused huge economic losses to waterfowl industry in China since 2015. Novel goose parvovirus-related virus (NGPV) is believed the main pathogen of BADS disease; however, BADS is rarely reproduced by infecting ducks with NGPV alone. As avian circovirus infection causes clinical symptoms similar to BADS, duck circovirus (DuCV) is suspected the minor pathogen of BADS disease. In this study, an investigation was carried out to determine the coinfection of NGPV and DuCV in duck embryos and in ducks with BADS disease. According to our study, the coinfection of emerging NGPV and DuCV was prevalent in East China (Shandong, Jiangsu and Anhui province) and could be vertical transmitted, indicating their cooperative roles in duck BADS disease. PMID- 29341429 TI - Trans-acting translational regulatory RNA binding proteins. AB - The canonical molecular machinery required for global mRNA translation and its control has been well defined, with distinct sets of proteins involved in the processes of translation initiation, elongation and termination. Additionally, noncanonical, trans-acting regulatory RNA-binding proteins (RBPs) are necessary to provide mRNA-specific translation, and these interact with 5' and 3' untranslated regions and coding regions of mRNA to regulate ribosome recruitment and transit. Recently it has also been demonstrated that trans-acting ribosomal proteins direct the translation of specific mRNAs. Importantly, it has been shown that subsets of RBPs often work in concert, forming distinct regulatory complexes upon different cellular perturbation, creating an RBP combinatorial code, which through the translation of specific subsets of mRNAs, dictate cell fate. With the development of new methodologies, a plethora of novel RNA binding proteins have recently been identified, although the function of many of these proteins within mRNA translation is unknown. In this review we will discuss these methodologies and their shortcomings when applied to the study of translation, which need to be addressed to enable a better understanding of trans-acting translational regulatory proteins. Moreover, we discuss the protein domains that are responsible for RNA binding as well as the RNA motifs to which they bind, and the role of trans-acting ribosomal proteins in directing the translation of specific mRNAs. This article is categorized under: RNA Interactions with Proteins and Other Molecules > RNA-Protein Complexes Translation > Translation Regulation Translation > Translation Mechanisms. PMID- 29341434 TI - Recombinant collagen scaffolds as substrates for human neural stem/progenitor cells. AB - Adhesion to the microenvironment profoundly affects stem cell functions, including proliferation and differentiation, and understanding the interaction of stem cells with the microenvironment is important for controlling their behavior. In this study, we investigated the effects of the integrin binding epitopes GFOGER and IKVAV (natively present in collagen I and laminin, respectively) on human neural stem/progenitor cells (hNSPCs). To test the specificity of these epitopes, GFOGER or IKVAV were placed within the context of recombinant triple helical collagen III engineered to be devoid of native integrin binding sites. HNSPCs adhered to collagen that presented GFOGER as the sole integrin-binding site, but not to IKVAV-containing collagen. For the GFOGER-containing collagens, antibodies against the beta1 integrin subunit prevented cellular adhesion, antibodies against the alpha1 subunit reduced cell adhesion, and antibodies against alpha2 or alpha3 subunits had no significant effect. These results indicate that hNSPCs primarily interact with GFOGER through the alpha1beta1 integrin heterodimer. These GFOGER-presenting collagen variants also supported differentiation of hNSPCs into neurons and astrocytes. Our findings show, for the first time, that hNSPCs can bind to the GFOGER sequence, and they provide motivation to develop hydrogels formed from recombinant collagen variants as a cell delivery scaffold. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1363-1372, 2018. PMID- 29341435 TI - Bifunctional Fluorescent Probe for Sequential Sensing of Thiols and Primary Aliphatic Amines in Distinct Fluorescence Channels. AB - Thiols and primary aliphatic amines (PAA) are ubiquitous and extremely important species in biological systems. They perform significant interplaying roles in complex biological events. A single fluorescent probe differentiating both thiols and PAA can contribute to understanding the intrinsic inter-relationship of thiols and PAA in biological processes. Herein, we rationally constructed the first fluorescent probe that can respond to thiols and PAA in different fluorescence channels. The probe exhibited a high selectivity and sensitivity to thiols and PAA. In addition, it displayed sequential sensing ability when the thiols and PAA coexisted. The application experiments indicated that the probe can be used for sensing thiols and PAA in human blood serum. Moreover, the fluorescence imaging of endogenous thiols and PAA as well as antihypertensive drugs captopril and amlodipine in living cells were successfully conducted. PMID- 29341436 TI - A novel near-infrared fluorescent probe for monitoring cyclooxygenase-2 in inflammation and tumor. AB - Targeting cyclooxygenase-2 (COX-2) for molecular imaging is an attractive approach applicable for its overexpression in inflammation and many malignancies. Herein, for monitoring COX-2, we synthesize a specific COX-2 probe celecoxib-MPA probe (CMP), based on celecoxib and a water-soluble near-infrared dye dye ICG-Der 02 (MPA). Its high affinity for binding to COX-2 is verified by molecular docking, dynamics simulation and inhibition assay. At cellular level, CMP selectively accumulates in cytoplasm of COX-2-positive cells. in vivo assays, probe guided-imaging in inflamed or cancerous tissues confirms that CMP can bind to the locally endogenic COX-2 and exhibit intense fluorescence. Importantly, we further prove the targeting specificity of CMP as the fluorescence is significantly reduced by blocking COX-2 active site through preinjection with celecoxib. The results suggest that the probe CMP, with favorable hydrophilic property, good biocompatibility, long-term observation, excellent targeting ability and optical imaging capability, could serve as a promising probe for real time monitoring COX-2 in inflammation and tumor. PMID- 29341437 TI - Phenotypic heterogeneity of ZMPSTE24 deficiency. AB - A 4-year-old girl was referred to the Undiagnosed Diseases Network with a history of short stature, thin and translucent skin, macrocephaly, small hands, and camptodactyly. She had been diagnosed with possible Hallerman-Streiff syndrome. Her evaluation showed that she was mosaic for uniparental isodisomy of chromosome 1, which harbored a pathogenic c.1077dupT variant in ZMPSTE24 which predicts p.(Leu362fsX18). ZMPSTE24 is a zinc metalloproteinase that is involved in processing farnesylated proteins and pathogenic ZMPSTE24 variants cause accumulation of abnormal farnesylated forms of prelamin A. This, in turn, causes a spectrum of disease severity which is based on enzyme activity. The current patient has an intermediate form, which is a genocopy of severe Progeria. PMID- 29341440 TI - Response to Hostetler. PMID- 29341439 TI - Therapeutic benefits of CD90-negative cardiac stromal cells in rats with a 30-day chronic infarct. AB - Cardiac stromal cells (CSCs) can be derived from explant cultures, and a subgroup of these cells is viewed as cardiac mesenchymal stem cells due to their expression of CD90. Here, we sought to determine the therapeutic potential of CD90-positive and CD90-negative CSCs in a rat model of chronic myocardial infarction. We obtain CD90-positive and CD90-negative fractions of CSCs from rat myocardial tissue explant cultures by magnetically activated cell sorting. In vitro, CD90-negative CSCs outperform CD90-positive CSCs in tube formation and cardiomyocyte functional assays. In rats with a 30-day infarct, injection of CD90 negative CSCs augments cardiac function in the infarct in a way superior to that from CD90-positive CSCs and unsorted CSCs. Histological analysis revealed that CD90-negative CSCs increase vascularization in the infarct. Our results suggest that CD90-negative CSCs could be a development candidate as a new cell therapy product for chronic myocardial infarction. PMID- 29341441 TI - Organic Microcrystal Vibronic Lasers with Full-Spectrum Tunable Output beyond the Franck-Condon Principle. AB - The very broad emission bands of organic semiconductor materials are, in theory, suitable for achieving versatile solid-state lasers; however, most of organic materials only lase at short wavelength corresponding to the 0-1 transition governed by the Franck-Condon (FC) principle. A strategy is developed to overcome the limit of FC principle for tailoring the output of microlasers over a wide range based on the controlled vibronic emission of organic materials at microcrystal state. For the first time, the output wavelength of organic lasers is tailored across all vibronic (0-1, 0-2, 0-3, and even 0-4) bands spanning the entire emission spectrum. PMID- 29341438 TI - Natural antisense transcripts in diseases: From modes of action to targeted therapies. AB - Antisense transcription is a widespread phenomenon in mammalian genomes, leading to production of RNAs molecules referred to as natural antisense transcripts (NATs). NATs apply diverse transcriptional and post-transcriptional regulatory mechanisms to carry out a wide variety of biological roles that are important for the normal functioning of living cells, but their dysfunctions can be associated with human diseases. In this review, we attempt to provide a molecular basis for the involvement of NATs in the etiology of human disorders such as cancers and neurodegenerative and cardiovascular diseases. We also discuss the pros and cons of oligonucleotide-based therapies targeted against NATs, and we comment on state of-the-art progress in this promising area of clinical research. WIREs RNA 2018, 9:e1461. doi: 10.1002/wrna.1461 This article is categorized under: RNA in Disease and Development > RNA in Disease Regulatory RNAs/RNAi/Riboswitches > Regulatory RNAs RNA Interactions with Proteins and Other Molecules > Small Molecule-RNA Interactions. PMID- 29341442 TI - Motivating influences and ability-based outcomes of dental hygiene baccalaureate education in Canada. AB - BACKGROUND: There is a scarcity of studies on Canadian baccalaureate dental hygienists. As discussions about baccalaureate education for dental hygiene continue on a national level, examining outcomes of earning a dental hygiene degree is paramount. OBJECTIVE: To investigate the motivating reasons and ability based outcomes of earning a Bachelor of Dental Science in Dental Hygiene (BDSc) degree from the University of British Columbia (UBC), Canada. METHODS: UBC dental hygiene entry-to-practice (ETP) and degree-completion (DC) graduates (n = 116; 32%) from 1994 to 2016 participated in an online mixed-methods survey. Survey questions explored motivating reasons for pursuing dental hygiene degree education and abilities gained during their degree. RESULTS: Primary reasons for pursuing a degree were personal satisfaction (82%), increasing knowledge base (82%), increasing employment opportunities (78%), status/recognition of a degree (76%), accessing graduate education (68%) and improving critical thinking abilities (61%). For DC graduates, abilities strengthened included enhanced skills for appraising research (92%), enhanced critical thinking and problem solving skills (90%), enhanced skills for retrieving scientific information (88%) and increased value for lifelong learning (84%). Enhanced abilities positively influenced client care in the areas of evidence-based decision-making, communicating information to clients, and collaborating with other professionals. Overall, 93% of respondents believe a baccalaureate degree should be the ETP credential for dental hygiene because it enhances critical thinking and better prepares graduates for diverse roles in society with more complex populations. CONCLUSION: The results highlight the impact of baccalaureate education on dental hygiene practice in Canada. PMID- 29341443 TI - Stachyose Improves Inflammation through Modulating Gut Microbiota of High-Fat Diet/Streptozotocin-Induced Type 2 Diabetes in Rats. AB - SCOPE: The present study is undertaken to assess the effects of stachyose (STS) on type 2 diabetes in rats and changes in the gut microbiota compared to metformin (MET). METHODS AND RESULTS: The type 2 diabetic model is successfully established via a high-fat diet /streptozotocin in Wistar rats, and STS or MET is administered for 4 weeks. Blood is collected to analyze biochemical parameters, pancreas for mRNA expression of related gene, and contents of colon for gut microbiota. STS or MET decreases serum LPS, mRNA expression of IL-6, and tumor necrosis factor-alpha (TNF-alpha). In addition, STS and MET show a similar shifting of the structure of the gut microbiota and a selective enrichment of key species. At the genus level, STS shows selective enrichment of Phascolarctobacterium, Bilophila, Oscillospira, Turicibacter, and SMB5, but MET demonstrates a selective effect on Sutterella, Prevotella, 02d06, and rc4. The correlation analysis indicates that STS and MET decrease IL-6 and TNF-alpha and increase Akt/PI3K expression, which are relative to key species of gut microbiota. CONCLUSION: STS decreases pancreatic mRNA expression of IL-6 and TNF alpha via key species of gut microbiota. The mechanism of this effect is similar to that of MET. PMID- 29341444 TI - Teaching clinical leadership to medical students. PMID- 29341445 TI - Automated detection of preserved photoreceptor on optical coherence tomography in choroideremia based on machine learning. AB - Optical coherence tomography (OCT) can demonstrate early deterioration of the photoreceptor integrity caused by inherited retinal degeneration diseases (IRDs). A machine learning method based on random forests was developed to automatically detect continuous areas of preserved ellipsoid zone structure (an easily recognizable part of the photoreceptors on OCT) in 16 eyes of patients with choroideremia (a type of IRD). Pseudopodial extensions protruding from the preserved ellipsoid zone areas are detected separately by a local active contour routine. The algorithm is implemented on en face images with minimum segmentation requirements, only needing delineation of the Bruch's membrane, thus evading the inaccuracies and technical challenges associated with automatic segmentation of the ellipsoid zone in eyes with severe retinal degeneration. PMID- 29341446 TI - Carboxytherapy for treatment of localized chronic plaque psoriasis: Clinical and histopathologic evaluation. AB - BACKGROUND: Multiple treatment options are introduced in treatment of chronic localized plaque psoriasis but with poor adherence and poor patients' satisfaction resulting in poor treatment outcome. OBJECTIVE: In this pilot study, we investigated the safety and efficacy of carboxytherapy in treatment of chronic localized plaque psoriasis. METHODS: Thirty adult patients with chronic localized plaque psoriasis were enrolled in this study. The patients received carboxytherapy injection once/week for 8 weeks. Patients were clinically and histpathologically evaluated 2 weeks after the last treatment. Clinical response was evaluated by investigator's global assessment, total sign score, and 5-point scale for perilesional erythema. We performed 10-point visual analog scale for patient's satisfaction, and side effects. Three months after the last session we evaluate recurrence using 10-point scale. RESULTS: Carboxytherapy achieved treatment success in 26.6% according to investigator's global assessment and total sign score and 70% of the patients demonstrated absence of perilesional erythema. Patients were satisfied with no reported side effects. Recurrence area was within 1% -10% of the baseline area in 83.3% of the improved patients. PMID- 29341447 TI - Anti-transcription intermediary factor 1gamma antibody titer correlates with clinical symptoms in a patient with recurrent dermatomyositis associated with ovarian cancer. PMID- 29341448 TI - Beneficial actions of microbiota-derived tryptophan metabolites. AB - Tryptophan is an important dietary amino acid and it is the precursor for 5 hydroxytryptamine synthesis in the nervous system and by enterochromaffin cells in the gut mucosa. Tryptophan is also metabolized by enzymes in the gut mucosa and also by enzymes produced by the gut microbiome. Diet and the microbiome can contribute to metabolic disease in part by causing intestinal inflammation and increased permeability. In this issue of Neurogastroenterology and Motility, Jennis et al. test the hypothesis that indole tryptophan metabolites produced by gut bacteria might be responsible for the anti-inflammatory and beneficial metabolic effects of the gut microbiome and Roux-en-Y gastric bypass surgery for weight loss by obese patients. The authors identified indole-3-propionic acid as the beneficial metabolite. A review of the literature also revealed the beneficial effects of tryptophan metabolites on diabetes and metabolic disease and on inflammatory bowel disease. Taken together, these data highlight another health benefit of the intestinal microbiome, which produces beneficial products from dietary amino acids especially tryptophan. PMID- 29341449 TI - Digging deeper: A holistic perspective of factors affecting soil organic carbon sequestration in agroecosystems. AB - The global magnitude (Pg) of soil organic carbon (SOC) is 677 to 0.3-m, 993 to 0.5-m, and 1,505 to 1-m depth. Thus, ~55% of SOC to 1-m lies below 0.3-m depth. Soils of agroecosystems are depleted of their SOC stock and have a low use efficiency of inputs of agronomic yield. This review is a collation and synthesis of articles published in peer-reviewed journals. The rates of SOC sequestration are scaled up to the global level by linear extrapolation. Soil C sink capacity depends on depth, clay content and mineralogy, plant available water holding capacity, nutrient reserves, landscape position, and the antecedent SOC stock. Estimates of the historic depletion of SOC in world soils, 115-154 (average of 135) Pg C and equivalent to the technical potential or the maximum soil C sink capacity, need to be improved. A positive soil C budget is created by increasing the input of biomass-C to exceed the SOC losses by erosion and mineralization. The global hotspots of SOC sequestration, soils which are farther from C saturation, include eroded, degraded, desertified, and depleted soils. Ecosystems where SOC sequestration is feasible include 4,900 Mha of agricultural land including 332 Mha equipped for irrigation, 400 Mha of urban lands, and ~2,000 Mha of degraded lands. The rate of SOC sequestration (Mg C ha-1 year-1 ) is 0.25-1.0 in croplands, 0.10-0.175 in pastures, 0.5-1.0 in permanent crops and urban lands, 0.3-0.7 in salt-affected and chemically degraded soils, 0.2-0.5 in physically degraded and prone to water erosion, and 0.05-0.2 for those susceptible to wind erosion. Global technical potential of SOC sequestration is 1.45-3.44 Pg C/year (2.45 Pg C/year). PMID- 29341450 TI - Characterization of a novel, papain-inducible murine model of eosinophilic rhinosinusitis. AB - BACKGROUND: Eosinophilic chronic rhinosinusitis (ECRS) is a disease characterized by eosinophilic inflammatory infiltrate and a local type 2 cytokine milieu. Current animal models fail to recapitulate many of the innate and adaptive immunologic hallmarks of the disease, thus hindering the development of effective therapeutics. In the present study, mice were exposed intranasally to the cysteine protease papain, which shares functional similarities with parasitic proteases and aeroallergens, to generate a rapidly inducible murine model of eosinophilic rhinosinusitis. METHODS: C57BL/6 mice were intranasally instilled with 20 MUg papain or heat-inactivated papain (HP) on days 0-2 and days 7-10, and then euthanized on day 11. Nasal lavage fluid (NALF) was analyzed to quantify eosinophils and inflammatory cytokine secretion. Sinonasal tissue was sectioned and stained for goblet cells or homogenized to analyze cytokine levels. Serum samples were assayed for immunoglobulin E (IgE) by enzyme-linked immunoassay. Sinonasal mucosal tissue was dissociated and analyzed by flow cytometry. RESULTS: Compared with HP treatment, papain induced significant eosinophilia in NALF, goblet cell hyperplasia, innate and adaptive immune cell infiltration, type 2 cytokine production, and IgE responses. Flow cytometric analysis of sinonasal tissues revealed significant inflammatory cell infiltration and interleukin-13 producing cell populations. CONCLUSION: In this study, we demonstrated that the cysteine protease papain induces allergic sinonasal eosinophilic rhinosinusitis and resembles T-helper 2 cell inflammation and innate immune characteristics of ECRS. This model permits further study into the molecular mechanisms underlying ECRS pathology and provides a model system for the evaluation of potential pharmacologic interventions. PMID- 29341451 TI - Exophytic sinonasal papillomas and nasal florid papillomatosis: A retrospective study. AB - BACKGROUND: Sinonasal exophytic papillomas are rare. The multifocal form, florid papillomatosis, has not been yet described in literature. We report on the clinical features and the management of the different forms of exophytic papilloma. METHODS: A retrospective study was conducted that included all patients with exophytic papilloma treated in our center over the past 12 years. We recorded clinical presentation, treatments, recurrences, pathology (p16 expression and human papillomavirus [HPV] status). RESULTS: We included 13 patients with a mean follow-up of 5 years. The main location of exophytic papilloma was the anterior part of the septum. Lesions were multifocal in 3 patients corresponding to florid papillomatosis. The main treatment was surgery. Cases of HPV-11 or HPV-6 were present in all forms of exophytic papilloma (dysplasia in 4 cases). Late recurrences occurred in 3 patients (2 patients with florid papillomatosis) over a period of 3 years. CONCLUSION: Exophytic papilloma has 2 clinical presentations: localized and diffuse. Patients with florid papillomatosis should be monitored closely as recurrence seems to be frequent. PMID- 29341452 TI - Contribution of MLH1 constitutional methylation for Lynch syndrome diagnosis in patients with tumor MLH1 downregulation. AB - Constitutional epimutation of the two major mismatch repair genes, MLH1 and MSH2, has been identified as an alternative mechanism that predisposes to the development of Lynch syndrome. In the present work, we aimed to investigate the prevalence of MLH1 constitutional methylation in colorectal cancer (CRC) patients with abnormal expression of the MLH1 protein in their tumors. In a series of 38 patients who met clinical criteria for Lynch syndrome genetic testing, with loss of MLH1 expression in the tumor and with no germline mutations in the MLH1 gene (35/38) or with tumors presenting the BRAF p.Val600Glu mutation (3/38), we screened for constitutional methylation of the MLH1 gene promoter using methylation-specific multiplex ligation-dependent probe amplification (MS-MLPA) in various biological samples. We found four (4/38; 10.5%) patients with constitutional methylation in the MLH1 gene promoter. RNA studies demonstrated decreased MLH1 expression in the cases with constitutional methylation when compared with controls. We could infer the mosaic nature of MLH1 constitutional hypermethylation in tissues originated from different embryonic germ layers, and in one family we could show that it occurred de novo. We conclude that constitutional MLH1 methylation occurs in a significant proportion of patients who have loss of MLH1 protein expression in their tumors and no MLH1 pathogenic germline mutation. Furthermore, we provide evidence that MLH1 constitutional hypermethylation is the molecular mechanism behind about 3% of Lynch syndrome families diagnosed in our institution, especially in patients with early onset or multiple primary tumors without significant family history. PMID- 29341453 TI - Mechanism underlying the negative effect of prostate volume on the outcome of extensive transperineal ultrasound-guided template prostate biopsy. AB - Previous studies have indicated a possible relationship between increased prostate volume (PV) and decreased biopsy yield, although the mechanism involved is unclear. We evaluated 1650 patients who underwent template biopsy. The distribution of 993 cancer lesions in 302 prostatectomy specimens was compared with the biopsy data to determine whether each lesion was detected. A receiver operating characteristic (ROC) model was used to determine the diagnostic accuracy of prostate-specific antigen (PSA) and related markers. A medical record number (MRN) was used as a negative control. The cancer positive rate did not change as PSA increased in patients with PV >=50 mL (P = 0.466), although it increased as PSA increased in patients with PV<50 mL (P = 0.001). The detection rate of cancer lesions decreased as the diameter of the lesions decreased (P = 0.018), but remained unchanged with respect to PV. The diameters of the maximum lesions in patients with PV >= 50 mL were significantly smaller than those in patients with PV<50 mL (P = 0.003). In patients with PV >= 50 mL, the areas under the ROC curves for PSA-related markers did not differ significantly from that for MRN, although they were significantly greater than that for MRN in patients with PV<50 mL (P < 0.001). These results suggest that an increase in PV is associated with a decrease in size and detectability of cancer lesions resulting in a decrease in biopsy yield. Loss of diagnostic accuracy of markers in patients with PV >= 50 mL indicates a decrease in serum levels of PSA produced by prostate cancer, which suggests growth inhibition of the cancer. PMID- 29341454 TI - Socioeconomic deprivation and the burden of head and neck cancer-Regional variations of incidence and mortality in Merseyside and Cheshire, North West, England. AB - OBJECTIVES: The aim of this longitudinal study was to examine the distribution of head and neck cancer (HANC) disease burden across the region comparing it to national trends. DESIGN: We undertook a retrospective study of routine data combining it with indicators of deprivation and lifestyle at small geographical areas within the 9 Local Authorities (LAs) of Merseyside and Cheshire Network (MCCN) for head and neck cancers. Data from the North West of England and England were used as comparator regions. SETTING: This research was undertaken by the Cheshire and Merseyside Public Health Collaborative, UK. PARTICIPANTS: The Merseyside and Cheshire region serves a population of 2.2 million. Routine data allowed us to identify HANC patients diagnosed with cancers coded ICD C00-C14 and C30-C32 within 3 cohorts 1998-2000, 2008-2010 and 2009-2011 for our analysis. MAIN OUTCOME MEASURES: Directly age-standardised incidence rates and directly age standardised mortality rates in the LAs and comparator regions were measured. Lifestyle and deprivation indicators were plotted against them and measured by Pearson's correlation coefficients. RESULTS: The incidence of head and neck cancer has increased across the region from 1998-2000 to 2008-2010 with a peak incidence for Liverpool males at 35/100 000 population. Certain Middle Super Output Areas contribute disproportionately to the significant effect of incidence and mortality within LAs. Income deprivation had the strongest correlation with incidence (r = .59) and mortality (r = .53) of head and neck cancer. CONCLUSION: Our study emphasises notable geographical variations within the region which need to be addressed through public health measures. PMID- 29341455 TI - Microsatellite markers for evaluating the diversity of the natural killer complex and major histocompatibility complex genomic regions in domestic horses. AB - Genotyping microsatellite markers represents a standard, relatively easy, and inexpensive method of assessing genetic diversity of complex genomic regions in various animal species, such as the major histocompatibility complex (MHC) and/or natural killer cell receptor (NKR) genes. MHC-linked microsatellite markers have been identified and some of them were used for characterizing MHC polymorphism in various species, including horses. However, most of those were MHC class II markers, while MHC class I and III sub-regions were less well covered. No tools for studying genetic diversity of NKR complex genomic regions are available in horses. Therefore, the aims of this work were to establish a panel of markers suitable for analyzing genetic diversity of the natural killer complex (NKC), and to develop additional microsatellite markers of the MHC class I and class III genomic sub-regions in horses. Nine polymorphic microsatellite loci were newly identified in the equine NKC. Along with two previously reported microsatellites flanking this region, they constituted a panel of 11 loci allowing to characterize genetic variation in this functionally important part of the horse genome. Four newly described MHC class I/III-linked markers were added to 11 known microsatellites to establish a panel of 15 MHC markers with a better coverage of the class I and class III sub-regions. Major characteristics of the two panels produced on a group of 65 horses of 13 breeds and on five Przewalski's horses showed that they do reflect genetic variation within the horse species. PMID- 29341456 TI - Iron pill aspiration: Cytologic and histologic findings of a potential life threatening airway injury. A Case report and literature review. AB - Iron pill-induced injury of bronchial mucosa is a complication following accidental aspiration of an iron tablet. Oral iron supplementation is a common therapy, particularly among advanced-age patients, who are more prone to aspiration. However, iron pill aspiration has been rarely reported in the literature, usually under the format of short case reports, with only 32 cases published in the literature. The cytologic features suspicious for this rare but potentially lethal entity have been seldom described. We report a case of a patient diagnosed with iron pill-induced bronchial injury, after oral ferrous sulfate has been prescribed during a hospital admission for pneumonia. In the bronchial washing specimen, a background of necrotic cell debris and acute inflammation involving extracellular golden-brown fibrils positive for iron stains was seen, along with the yeast forms, which, in this clinical context could confirm the iron pill aspiration. Our aim is to highlight the cytology features associated with iron pill aspiration bronchitis, and to review the literature for the histologic, clinical, bronchoscopy, and treatment aspects. PMID- 29341457 TI - Different effects of dexmedetomidine and midazolam on the expression of NR2B and GABAA-alpha1 following peripheral nerve injury in rats. AB - Neuropathic pain is a complex, chronic pain condition and the treatment is a major clinical challenge. Recent studies have shown that two FDA approved drugs dexmedetomidine (DEX) and midazolam (MZL), may be useful in treating neuropathic pain, but the mechanism is not fully dementated. Here, we investigated the effects and mechanisms of DEX and MZL treatment in the peripheral nerve injury model. Intramuscular injection with DEX and MZL attenuated the development of mechanical allodynia and thermal hyperalgesia in rats with chronic constriction injury (CCI). Concurrently, the expression of NMDA receptor subunit 2B (NR2B), GABA (A) receptor subunit alpha1 (GABAA-alpha1), and Sonic Hedgehog (SHH) displayed different temporal patterns in the thalamus and the ipsilateral dorsal horn of the spinal cord after CCI. Such that (1) NR2B expression was decreased on day 1 and 14, whereas GABAA-alpha1 expression was increased on day 1 in the thalamus, and NR2B expression was decreased on day 1, whereas GABAA-alpha1 expression was increased on day 1 and day 30 in the ipsilateral spinal cord dorsal horn after DEX treatment. (2) NR2B expression was increased on day 1, then decreased on day 14 and returned to baseline on day30, whereas GABAA-alpha1 expression was no significant changes on day 1, 14, 30 in the thalamus, and NR2B expression was decreased on day 14 and 30, whereas GABAA-alpha1 expression was no changes on day 1 and 14 but increased on day 30 after MZL treatment. Furthermore, the mechanical allodynia was significantly attenuated after PUR administration. Meanwhile the expression of NR2B was significantly decreased, and the expression of GABAA-alpha1 was significantly increased, in the thalamus and in the ipsilateral spinal cord dorsal horn when detected on postoperative day 1, 7, and 14. Our findings indicate that DEX and MZL have different mechanisms in CCI rats, suggesting different strategies could be considered in managing neuropathic pain in different individuals. (c) 2018 IUBMB Life, 70(2):143-152, 2018. PMID- 29341458 TI - Procedural competency in emergency medicine training. PMID- 29341460 TI - Intellectual disability and epilepsy due to the K/L-mediated Xq28 duplication: Further evidence of a distinct, dosage-dependent phenotype. AB - Copy number variants of the X-chromosome are a common cause of X-linked intellectual disability in males. Duplication of the Xq28 band has been known for over a decade to be the cause of the Lubs X-linked Mental Retardation Syndrome (OMIM 300620) in males and this duplication has been narrowed to a critical region containing only the genes MECP2 and IRAK1. In 2009, four families with a distal duplication of Xq28 not including MECP2 and mediated by low-copy repeats (LCRs) designated "K" and "L" were reported with intellectual disability and epilepsy. Duplication of a second more distal region has been described as the cause of the Int22h-1/Int22h-2 Mediated Xq28 Duplication Syndrome, characterized by intellectual disability, psychiatric problems, and recurrent infections. We report two additional families possessing the K/L-mediated Xq28 duplication with affected males having intellectual disability and epilepsy similar to the previously reported phenotype. To our knowledge, this is the second cohort of individuals to be reported with this duplication and therefore supports K/L mediated Xq28 duplications as a distinct syndrome. PMID- 29341459 TI - Multicenter study of diagnostic procedures, genetic aberration analysis, and first-line treatment of lung cancer in Jiangsu Province, China. AB - BACKGROUND: Jiangsu Province, China, is highly developed economically and culturally, and has a high prevalence of lung cancer. We aimed to evaluate the diagnostic procedures, genetic aberration analysis status, and first-line treatment models of lung cancer in Jiangsu Province. METHODS: Lung cancer patients diagnosed in 2016 at 22 tertiary care hospitals were evaluated. Demographic characteristics, tumor histology, staging, family history of lung cancer, auxiliary examinations, genetic testing, and first-line treatment were collected on discharge. Diagnostic and treatment data were analyzed by descriptive statistics. RESULTS: A total of 928 patients were enrolled. Chest computed tomography was the most frequently used diagnostic method; pathology diagnosis was carried out by transbronchial lung biopsy and transthoracic needle aspiration. Stage T1-2N0M0 small-cell lung cancer patients experienced surgical resection, and others received cisplatin and etoposide chemotherapy. Stage I and stage II non-small cell lung cancer patients experienced surgical resection; stage III and stage IV patients received cisplatin and pemetrexed chemotherapy as first-line treatment. Detection of epidermal growth factor receptor (EGFR) mutations occurred in 29.9% of non-selective, 36.5% of locally advanced or metastatic, and 42.1% of advanced non-squamous non-small cell lung cancer. The overall EGFR-positive rates were 49.0%, 52.5%, and 53.9%. A total 72.0% of patients with EGFR mutations were treated with tyrosine kinase inhibitors. CONCLUSION: Chest computed tomography was the most commonly performed diagnostic method for lung cancer. First-line treatment was primarily determined by disease stages and EGFR mutation status, with few expectations. PMID- 29341461 TI - Effect of immediate and prolonged GLP-1 receptor agonist administration on uric acid and kidney clearance: Post-hoc analyses of four clinical trials. AB - AIMS: To determine the effects of glucagon-like peptide (GLP)-1 receptor agonists (RA) on uric acid (UA) levels and kidney UA clearance. MATERIAL AND METHODS: This study involved post-hoc analyses of 4 controlled clinical trials, which assessed actions of GLP-1RA administration on kidney physiology. The immediate effects of GLP-1RA exenatide infusion vs placebo were determined in 9 healthy overweight men (Study-A) and in 52 overweight T2DM patients (Study-B). The effects of 12 weeks of long-acting GLP-1RA liraglutide vs placebo in 36 overweight T2DM patients (Study-C) and of 8 weeks of short-acting GLP-1RA lixisenatide vs once-daily titrated insulin glulisine in 35 overweight T2DM patients (Study-D) were also examined. Plasma UA, fractional (inulin-corrected) and absolute urinary excretion of UA (UEUA ) and sodium (UENa ), and urine pH were determined. RESULTS: Median baseline plasma UA level was 5.39 to 6.33 mg/dL across all studies (17%-22% of subjects were hyperuricaemic). In Study-A, exenatide infusion slightly increased plasma UA (+0.07 +/- 0.02 mg/dL, P = .04), and raised absolute-UEUA (+1.58 +/- 0.65 mg/min/1.73 m2 , P = .02), but did not affect fractional UEUA compared to placebo. Fractional UEUA and absolute UEUA correlated with increases in urine pH (r:0.86, P = .003 and r:0.92, P < .001, respectively). Fractional UEUA correlated with increased fractional UENa (r:0.76, P = .02). In Study-B, exenatide infusion did not affect plasma UA, but increased fractional UEUA (+0.76 +/- 0.38%, P = .049) and absolute UEUA (+0.75 +/- 0.27 mg/min/1.73 m2 , P = .007), compared to placebo. In regression analyses, both parameters were explained by changes in urine pH and, in part, by changes in UENa . In Study-C, liraglutide treatment did not affect plasma UA, UEUA, UENa or urine pH, compared to placebo. In Study-D, lixisenatide treatment increased UENa and urine pH from baseline, but did not affect plasma UA or UEUA . CONCLUSION: Immediate exenatide infusion increases UEUA in overweight healthy men and in T2DM patients, probably by inhibiting Na+ /H+ -exchanger type-3 in the renal proximal tubule. Prolonged treatment with a long-acting or short-acting GLP-1RA does not affect plasma UA or UEUA in T2DM patients with normal plasma UA levels and at relatively low cardiovascular risk. Our results suggest that the cardio-renal benefits of GLP-1RA are not mediated through changes in UA. PMID- 29341462 TI - DNA Origami Scaffolds as Templates for Functional Tetrameric Kir3 K+ Channels. AB - In native systems, scaffolding proteins play important roles in assembling proteins into complexes to transduce signals. This concept is yet to be applied to the assembly of functional transmembrane protein complexes in artificial systems. To address this issue, DNA origami has the potential to serve as scaffolds that arrange proteins at specific positions in complexes. Herein, we report that Kir3 K+ channel proteins are assembled through zinc-finger protein (ZFP)-adaptors at specific locations on DNA origami scaffolds. Specific binding of the ZFP-fused Kir3 channels and ZFP-based adaptors on DNA origami were confirmed by atomic force microscopy and gel electrophoresis. Furthermore, the DNA origami with ZFP binding sites nearly tripled the K+ channel current activity elicited by heterotetrameric Kir3 channels in HEK293T cells. Thus, our method provides a useful template to control the oligomerization states of membrane protein complexes in vitro and in living cells. PMID- 29341463 TI - Synthetic phonics and decodable instructional reading texts: How far do these support poor readers? AB - This paper presents data from a quasi-experimental trial with paired randomisation that emerged during the development of a reading scheme for children in England. This trial was conducted with a group of 12 children, aged 5 6, and considered to be falling behind their peers in reading ability and a matched control group. There were two intervention conditions (A: using mixed teaching methods and a high percentage of non-phonically decodable vocabulary; P: using mixed teaching methods and low percentage of non-decodable vocabulary); allocation to these was randomised. Children were assessed at pre- and post-test on standardised measures of receptive vocabulary, phoneme awareness, word reading, and comprehension. Two class teachers in the same school each selected 6 children, who they considered to be poor readers, to participate (n = 12). A control group (using synthetic phonics only and phonically decodable vocabulary) was selected from the same 2 classes based on pre-test scores for word reading (n = 16). Results from the study show positive benefits for poor readers from using both additional teaching methods (such as analytic phonics, sight word vocabulary, and oral vocabulary extension) in addition to synthetic phonics, and also non-decodable vocabulary in instructional reading text. PMID- 29341464 TI - Left sleeve lobectomy versus left pneumonectomy for the management of patients with non-small cell lung cancer. AB - BACKGROUND: The study was conducted to compare the outcomes of sleeve lobectomy (SL) and pneumonectomy (PN) for management of the left lung in patients with non small cell lung cancer (NSCLC). METHODS: One hundred and thirty-five patients who underwent left SL (n = 87) or left PN (n = 48) for NSCLC from January 2006 to December 2011 were enrolled in this retrospective study. Left SL was performed when technically possible. The clinicopathological features and treatment outcomes in both groups were compared. Survival was evaluated using the Kaplan Meier method, and significant differences were calculated using the log-rank test. Multivariate analysis was conducted using the Cox proportional hazards model to analyze significant variables associated with the outcomes of left SL. RESULTS: There were no significant differences in general clinicopathological features (age, gender, lymph node metastasis, pathological stage, and complications of bronchial fistula) between patients who underwent left SL and left PN. The operation duration was markedly longer and the extent of bleeding was greater for left SL than left PN; however patients who underwent left SL achieved significantly longer overall survival than patients who underwent left PN. The outcomes of left SL were only associated with pathological stage. CONCLUSIONS: Our results indicate that left SL may offer superior survival than left PN in selected patients. If anatomically feasible, left SL may be a preferred alternative to left PN for NSCLC patients. Pathological stage is an important factor to determine the outcome of SL. PMID- 29341465 TI - P2Y12 deficiency in mouse impairs noradrenergic system in brain, and alters anxiety-like neurobehavior and memory. AB - Purinergic receptor P2Y12 (P2Y12 ), a G protein-coupled purinergic receptor, is widely distributed in nervous system and involved in the progression of neurological diseases such as multiple sclerosis and neuropathic pain. The central noradrenergic system actively participates in a number of neurophysiological processes. Nevertheless, whether there is any direct relevance between P2Y12 and noradrenergic signal transduction remains unknown. In the present study, we tested the hypothesis that lack of P2Y12 impaired noradrenergic signal transduction in mouse brain. Our results showed that P2Y12 knockout (KO) mice exhibited increased anxiety-like behavior in the open-field test (OFT) and elevated plus maze test and displayed deficits in memory in the radial-arm maze test (RAMT) and Morris water maze test (MWMT). They also exhibited reduced locomotion in the OFT and MWMT. Moreover, loss of P2Y12 decreased the level of noradrenaline and the expression of noradrenergic alpha receptors, subtypes alpha2 (ARalpha2b) in mouse cerebellum and hippocampus. Meanwhile, it hampered the protein kinase A (PKA)/cAMP response element-binding protein (CREB)/brain derived neurotrophic factor (BDNF) signaling pathway in these brain regions. Taken together, our results showed for the first time that P2Y12 KO altered the anxiety, memory and locomotion of mice, which was closely associated with abnormal state of noradrenergic system in the brain. The findings implicate that P2Y12 plays an indispensable role in noradrenergic signal transduction; its deficit is insufficient to limit anxiety responses or supports cognitive performance and activity. PMID- 29341466 TI - Effects of intravenous home dobutamine in palliative end-stage heart failure on quality of life, heart failure hospitalization, and cost expenditure. AB - AIMS: In patients with palliative end-stage heart failure, interventions that could provide symptomatic relief and prevent hospital admissions are important. Ambulatory continuous intravenous inotropes have been advocated by guidelines for such a purpose. We sought to determine the effect of intravenous dobutamine on symptomatic status, hospital stay, mortality, and cost expenditure. METHODS AND RESULTS: All consecutive end-stage heart failure patients not amenable for advanced therapies and discharged with continuous intravenous home dobutamine from a single tertiary centre between April 2011 and January 2017 were retrospectively analysed. Dobutamine (fixed dose) was infused through a single lumen central venous catheter with a small pump that was refilled by a nurse on a daily basis. Symptomatic status was longitudinally assessed as the change in New York Heart Association class and patient global assessment scale. Antecedent and incident heart failure hospitalizations were determined in a paired fashion, and cost impact was assessed. A total of 21 patients (age 77 +/- 9 years) were followed up for 869 +/- 647 days. At first follow-up (6 +/- 1 weeks) after the initiation of dobutamine, patients had a significant improvement in New York Heart Association class (-1.29 +/- 0.64; P < 0.001), global assessment scale (<0.001), and N-terminal pro-brain natriuretic peptide (6247 vs. 2543 pg/mL; P = 0.033). Incident heart failure hospitalizations assessed at 3, 6, and 12 months were significantly reduced (P < 0.001 for all) in comparison with antecedent heart failure hospitalizations over the same time period. Cost expenditure was significantly lower at 3 (P < 0.001), 6 (P = 0.005), and 12 months (P = 0.001) after initiation of dobutamine. Mortality rate at 1 year was 48% with 9/12 (75%) patients dying at home, most often from progressive pump failure. CONCLUSIONS: Continuous intravenous home dobutamine in patients with palliative end-stage heart failure is feasible and associated with improved symptomatic status, heart failure hospitalizations, and health-care-related costs. Nevertheless, results should be interpreted in the context of the small and retrospective design. Larger studies are necessary to evaluate the effect of dobutamine in palliative end-stage heart failure. PMID- 29341467 TI - Optoacoustic sensing of hematocrit to improve the accuracy of hybrid fluorescence ultrasound intravascular imaging. AB - Hybrid intravascular fluorescence-ultrasound imaging is emerging for reading anatomical and biological information in vivo. By operating through blood, intravascular near-infrared fluorescence (NIRF) detection is affected by hemoglobin attenuation. Improved quantification has been demonstrated with methods that correct for the attenuation of the optical signal as it propagates through blood. These methods assume an attenuation coefficient for blood and measure the distance between detector and the vessel wall by observing the intravascular ultrasound images. Assumptions behind the attenuation employed in correction models may reduce the accuracy of these methods. Herein, we explore a novel approach to dynamically estimate optical absorption by using optoacoustic (photoacoustic) measurements. Adaptive correction is based on a trimodal intravascular catheter that integrates fluorescence, ultrasound and optoacoustic measurements. Using the novel catheter, we show how optoacoustic measurements can determine variations of blood absorption, leading to accurate quantification of the detected NIRF signals at different hematocrit values. PMID- 29341468 TI - Downregulation of BarH-like homeobox 2 promotes cell proliferation, migration and aerobic glycolysis through Wnt/beta-catenin signaling, and predicts a poor prognosis in non-small cell lung carcinoma. AB - BACKGROUND: Human BarH-like homeobox 2 (Barx2), a homeodomain factor of the Bar family, plays a critical role in cell adhesion and cytoskeleton remodeling, and has been reported in an increasing array of tumor types except non-small cell lung carcinoma (NSCLC). The purpose of the current study was to characterize the expression of Barx2 and assess the clinical significance of Barx2 in NSCLC. METHODS: Quantitative real-time polymerase chain reaction, immunohistochemistry and western blot analysis were used to examine mRNA and protein expression, respectively. The relationships between Barx2 expression and clinicopathological variables were analyzed. Cell Counting Kit-8 and plate colony formation assay were used to detect cell proliferation. Transwell assay was used to examine cell migration ability. Glucose uptake, lactate, adenosine triphosphate, and lactate dehydrogenase assays were used to detect aerobic glycolysis. RESULTS: Barx2 is downregulated in NSCLC tissues compared with para-carcinoma. Furthermore, Barx2 expression shows a negative correlation with advanced TNM stage and a high level of Ki-67. Survival analysis reveals that Barx2 level is an independent prognostic factor for NSCLC patients. The Barx2 (low) Ki-67 (high) group had the worst prognosis. Furthermore, the data indicate that downregulation of Barx2 expression promotes cell proliferation, migration, and aerobic glycolysis, including increased lactate dehydrogenase activity, glucose utilization, lactate production, and decreased intracellular adenosine triphospahte level. Furthermore, Barx2 acts as a negative regulator of the canonical Wnt/beta-catenin pathway. Reactivation of Wnt/beta-catenin pathway by LiCl can reverse the inhibiting effect of Barx2. CONCLUSIONS: These findings reveal that Barx2 serving as a tumor suppressor gene could decrease cell proliferation, migration, and aerobic glycolysis through inhibiting the Wnt/beta-catenin signaling pathway, and predicts a good prognosis in NSCLC. PMID- 29341469 TI - Downregulation of CSN6 attenuates papillary thyroid carcinoma progression by reducing Wnt/beta-catenin signaling and sensitizes cancer cells to FH535 therapy. AB - The incidence of thyroid cancer has increased worldwide at a rate higher than that of any other cancer. CSN6 is overexpressed in many types of cancers, and such expression is linked to oncogenic activity. However, the detailed biological functions of CSN6 in papillary thyroid cancer (PTC) have not been well characterized. We investigated CSN6 expression in PTC specimens and cell lines. We used short-hairpin RNA-mediated gene silencing to explore the biological effects of CSN6 depletion in PTC cells. The combined effects of CSN6 silencing and FH535 therapy were assessed in terms of cell viability. The mechanism by which CSN6 regulated beta-catenin expression was also analyzed. CSN6 levels were determined by real-time polymerase chain reaction (PCR) (mRNA), Western blotting, and immunochemistry (protein). The CCK-8 and migration assays and orthotopic xenograft transplantation were used to investigate the biological effects of CSN6. We assessed the combined effects of CSN6 silencing and FH535 on cell viability in vitro. We also analyzed the relationship between the CSN6 level and clinical pathological status. CSN6 was overexpressed in human PTCs, and loss of CSN6 attenuated tumor proliferation and migration both in vitro and in vivo. CSN6 stabilized beta-catenin and facilitated the epidermal-to-mesenchymal transition (EMT) in PTC cells. CSN6 positively regulated beta-catenin expression in a beta Trcp-dependent manner and triggered expression of several EMT-related genes regulated by beta-catenin. CSN6 silencing sensitized PTC cells to FH535 therapy via downregulation of the Wnt/beta-catenin signaling pathway. Finally, in PTC patients, the level of CSN6 was significantly (inversely) correlated with tumor size, the presence of multifocal lesions, and TNM stage. CSN6 overexpression in PTC is a strong indicator of enhanced tumor aggressiveness. CSN6 promotes PTC progression by inducing the EMT. CSN6 knockdown sensitizes PTC cells to FH535 therapy via downregulation of the Wnt/beta-catenin signaling pathway. PMID- 29341470 TI - Cytological features of mixed adenoneuroendocrine carcinoma of the ampulla of Vater: A case report with immunocytochemical analyses. AB - Mixed adenoneuroendocrine carcinoma (MANEC) is defined as a tumor that has morphologically recognizable both adenocarcinoma and neuroendocrine carcinoma components comprising at least 30% of either components. MANEC occurring in the ampulla of Vater is extremely rare, and only 16 cases have been reported in the English language literature. In the present report, we describe the first case of MANEC of the ampulla of Vater with immunocytochemical analyses. An 82-year-old Japanese male was incidentally found to have a tumorous lesion in the ampulla of Vater. Endoscopic ultrasound-fine needle aspiration (EUS-FNA) of the tumor was performed. The Papanicolaou smear demonstrated the presence of different three components. The most dominant component was cohesive clusters of small round cells with round to oval nuclei with powdery chromatin and scant cytoplasm, which corresponded to small cell carcinoma. The second component was an adenocarcinoma, which was composed of irregularly overlapping clusters of tall columnar cells with large round to oval nuclei containing conspicuous nucleoli. The third component was an adenoma, which was comprised of flat cohesive clusters of columnar cells without atypia. Immunocytochemical analyses demonstrated that synaptophysin was expressed in the small round cells, and cdx-2 was expressed in all three components. Accordingly, a cytodiagnosis of MANEC with adenoma component was made. Preoperative diagnosis of ampullary MANEC is difficult. However, this report clearly demonstrates three different components in the EUS FNA cytological specimen. Therefore, we suggest that cytological examination is a useful method for diagnosis of MANEC of the ampulla of Vater. PMID- 29341472 TI - Characterization of the novel HLA-B*40:01:31 allele. AB - The HLA-B*40:01:31 allele differs from B*40:01:01 by one nucleotide substitution at position 216. PMID- 29341471 TI - The impact of a dose of the angiotensin receptor blocker valsartan on post myocardial infarction ventricular remodelling. AB - AIMS: Although clinical guidelines advocate the use of the highest tolerated dose of angiotensin-converting enzyme inhibitors or angiotensin receptor blockers after acute myocardial infarction (MI), the optimal dosing or the risk-benefit profile of different doses have not been fully identified. METHODS AND RESULTS: In this multicentre trial, 495 Korean patients with acute ST segment elevation MI and subnormal left ventricular (LV) ejection fraction (<50%) were randomly allocated (2:1) to receive maximal tolerated dose of valsartan (titrated up to 320 mg/day, n = 333) or low-dose valsartan (80 mg/day, n = 162) treatment. The primary objective was to assess the changes in echocardiographic parameters of LV remodelling from baseline to 12 months after discharge. After treatment, end diastolic LV volume (LVEDV) decreased significantly in the low-dose group, but the difference in LVEDV changes was insignificant between the maximal-tolerated dose and low-dose groups. End-systolic LV volume decreased significantly in both groups, to a similar degree between groups. LV ejection fraction rose significantly in both study groups, to a similar degree. Changes in plasma levels of neurohormones were also comparable between the two groups. Drug-related adverse effects occurred more frequently in the maximal-tolerated-dose group than in the low-dose group (7.96 vs. 0.69%, P < 0.001). CONCLUSIONS: In the present study, treatment with the maximal tolerated dose of valsartan did not exhibit a superior effect on post-MI LV remodelling compared with low-dose treatment and was associated with a greater frequency of adverse effect in Korean patients. Further study with a sufficient number of cases and statistical power is warranted to verify the findings of the present study. PMID- 29341473 TI - Somatic mosaic deletions involving SCN1A cause Dravet syndrome. AB - Somatic mosaicism in single nucleotide variants of SCN1A is known to occur in a subset of parents of children with Dravet syndrome (DS). Here, we report recurrent somatic mosaic microdeletions involving SCN1A in children diagnosed with DS. Through the evaluation of 237 affected individuals with DS who did not show SCN1A or PCHD19 mutations in prior sequencing analyzes, we identified two children with mosaic microdeletions covering the entire SCN1A region. The allele frequency of the mosaic deletions estimated by multiplex ligation-dependent probe amplification and array comparative genomic hybridization was 25-40%, which was comparable to the mosaic ratio in lymphocytes and buccal mucosa cells observed by fluorescence in situ hybridization analysis. The minimal prevalence of SCN1A mosaic deletion is estimated to be 0.9% (95% confidence level: 0.11-3.11%) of DS with negative for SCN1A and PCDH19 mutations. This study reinforces the importance of somatic mosaicism caused by copy number variations in disease causing genes, and provides an alternative spectrum of SCN1A mutations causative of DS. Somatic deletions in SCN1A should be considered in cases with DS when standard screenings for SCN1A mutations are apparently negative for mutations. PMID- 29341474 TI - Effect of staining beverages on color and translucency of CAD/CAM composites. AB - : This study investigated the color (DeltaE) and translucency changes (DeltaTP) of CAD/CAM composites after exposure to staining solutions using both spectrophotometer and shade-matching device. Direct (Filtek Z350XT [ZT]), indirect (Shofu Ceramage [CE]) and CAD/CAM (Shofu HC Block [HC], Lava Ultimate [LU], Vita Enamic [EN]) composite specimens measuring 12 * 14 * 1.5 mm were fabricated, divided into five groups (n = 8), and immersed in cola, tea, coffee, red wine, distilled water (control) at 37 degrees C for 7 days. Color parameters were determined with both spectrophotometer and shade-taking device at baseline and 1 week. Delta E (DeltaE) with white and black backgrounds, and Delta TP (DeltaTP) were computed. Statistical testing was performed with ANOVA and Tukey post hoc test (P < .05). Mean DeltaE (white) values ranged from 0.20 +/- 0.06 to 12.26 +/- 1.95 while mean DeltaE (black) varied from 0.22 +/- 0.11 to 14.21 +/- 2.37. Mean DeltaTP values ranged from 0.13 +/- 0.17 to -3.87 +/- 2.16. CAD/CAM composites fared better in red wine than direct and indirect materials. Clinically perceptible color changes (DeltaE > 3.3) were observed for almost all materials when exposed to wine, coffee and tea. Direct, indirect, and CAD/CAM composites are all susceptible to various degrees of discoloration and translucency changes after exposure to staining beverages. Red wine caused the most discoloration and translucency changes. Limitations of these materials must be considered when placing an aesthetic restoration. CLINICAL SIGNIFICANCE: Direct, indirect, and CAD/CAM composites are all susceptible to various degrees of discoloration and translucency changes after exposure to staining beverages. Red wine generally caused the most discoloration and translucency changes. Although CAD/CAM composites were more color stable than direct and indirect materials when exposed to red wine, color changes were still clinically perceptible. PMID- 29341475 TI - MicroRNA-664a-5p promotes neuronal differentiation of SH-SY5Y cells. AB - MicroRNAs (miRNAs) belong to a class of small noncoding RNAs that play important roles in the translational regulation of gene expression. A number of miRNAs are known to act as key regulators of diverse processes such as neuronal differentiation. In this study, we have attempted to identify novel miRNAs related to neuronal differentiation via microarray analysis in the human neuronal differentiation model neuroblastoma SH-SY5Y cells. We identified 15 up-regulated and eight down-regulated miRNAs in SH-SY5Y cells treated with all-trans retinoic acid to induce differentiation. We further showed that one of the up-regulated miRNAs, miR-664a-5p, promoted neuronal differentiation of SH-SY5Y cells. These findings enhance our understanding of the miRNAs involved in the process of neurogenesis and, in particular, highlight an important role of miR-664a-5p in SH SY5Y cell neuronal differentiation. Further studies will be required to confirm the function of miR-664-5p in neuronal development and disease and to identify its relevant target genes. PMID- 29341476 TI - A rare male patient with classic Rett syndrome caused by MeCP2_e1 mutation. AB - Rett syndrome (RTT) is a severe neurodevelopmental disorder typically affecting females. It is mainly caused by loss-of-function mutations that affect the coding sequence of exon 3 or 4 of methyl-CpG-binding protein 2 (MECP2). Severe neonatal encephalopathy resulting in death before the age of 2 years is the most common phenotype observed in males affected by a pathogenic MECP2 variant. Mutations in MECP2 exon 1 affecting the MeCP2_e1 isoform are relatively rare causes of RTT in females, and only one case of a male patient with MECP2-related severe neonatal encephalopathy caused by a mutation in MECP2 exon 1 has been reported. This is the first reported case of a male with classic RTT caused by a 5-bp duplication in the open-reading frame of MECP2 exon 1 (NM_001110792.1:c.23_27dup) that introduced a premature stop codon [p.(Ser10Argfs*36)] in the MeCP2_e1 isoform, which has been reported in one female patient with classic RTT. Therefore, both males and females displaying at least some type of MeCP2_e1 mutation may exhibit the classic RTT phenotype. PMID- 29341477 TI - Evidence-based adequacy criteria for instrumented urine cytology using cytospin preparations. AB - Cytospin preparations of instrumented urine cytology specimens with less than 10 urothelial cells or more than 50 urothelial cells/10 hpfs are both associated with significantly increased false negative rates compared to cases with 10-49 urothelial cells/10 hpfs. PMID- 29341478 TI - Translational systems pharmacology-based predictive assessment of drug-induced cardiomyopathy. AB - Drug-induced cardiomyopathy contributes to drug attrition. We compared two pipelines of predictive modeling: (1) applying elastic net (EN) to differentially expressed genes (DEGs) of drugs; (2) applying integer linear programming (ILP) to construct each drug's signaling pathway starting from its targets to downstream proteins, to transcription factors, and to its DEGs in human cardiomyocytes, and then subjecting the genes/proteins in the drugs' signaling networks to EN regression. We classified 31 drugs with availability of DEGs into 13 toxic and 18 nontoxic drugs based on a clinical cardiomyopathy incidence cutoff of 0.1%. The ILP-augmented modeling increased prediction accuracy from 79% to 88% (sensitivity: 88%; specificity: 89%) under leave-one-out cross validation. The ILP-constructed signaling networks of drugs were better predictors than DEGs. Per literature, the microRNAs that reportedly regulate expression of our six top predictors are of diagnostic value for natural heart failure or doxorubicin induced cardiomyopathy. This translational predictive modeling might uncover potential biomarkers. PMID- 29341479 TI - Nuclear division cycle 80 promotes malignant progression and predicts clinical outcome in colorectal cancer. AB - Colorectal cancer (CRC) is a common human malignancy worldwide and increasing studies have attributed its malignant progression to abnormal molecular changes in cancer cells. Nuclear division cycle 80 (NDC80) is a newly discovered oncoprotein that regulates cell proliferation and cycle in numerous malignancies. However, its clinical significance and biological role in CRC remain unclear. Therefore, in this study, we firstly analyze its expression in a retrospective cohort enrolling 224 CRC patients and find its overexpression is significantly correlated with advanced tumor stage and poor prognosis in CRC patients. In addition, our result reveals it is an independent adverse prognostic factor affecting CRC-specific and disease-free survival. The subgroup analysis indicates NDC80 expression can stratify the clinical outcome in stage II and III patients, but fails in stage I and IV patients. In cellular assays, we find knockdown of NDC80 dramatically inhibits the proliferative ability, apoptosis resistance, cell cycle progression, and clone formation of CRC cells in vitro. Using xenograft model, we further prove knockdown of NDC80 also inhibits the tumorigenic ability of CRC cells in vivo. Finally, the microarray analysis is utilized to preliminarily clarify the oncogenic molecular mechanisms regulated by NDC80 and the results suggest it may promote CRC progression partly by downregulating tumor suppressors such as dual specificity phosphatase 5 and Forkhead box O1. Taken together, our study provides novel evidences to support that NDC80 is not only a promising clinical biomarker but also a potential therapeutical target for CRC precise medicine. PMID- 29341481 TI - Sleep medication, sleep duration and healthcare utilization among older adults. PMID- 29341482 TI - Association between polypharmacy and clinical ward pharmacy services in hospitals in Tokyo. PMID- 29341480 TI - Cutis laxa and excessive bone growth due to de novo mutations in PTDSS1. AB - The cutis laxa syndromes are multisystem disorders that share loose redundant inelastic and wrinkled skin as a common hallmark clinical feature. The underlying molecular defects are heterogeneous and 13 different genes have been involved until now, all of them being implicated in elastic fiber assembly. We provide here molecular and clinical characterization of three unrelated patients with a very rare phenotype associating cutis laxa, facial dysmorphism, severe growth retardation, hyperostotic skeletal dysplasia, and intellectual disability. This disorder called Lenz-Majewski syndrome (LMS) is associated with gain of function mutations in PTDSS1, encoding an enzyme involved in phospholipid biosynthesis. This report illustrates that LMS is an unequivocal cutis laxa syndrome and expands the clinical and molecular spectrum of this group of disorders. In the neonatal period, brachydactyly and facial dysmorphism are two early distinctive signs, later followed by intellectual disability and hyperostotic skeletal dysplasia with severe dwarfism allowing differentiation of this condition from other cutis laxa phenotypes. Further studies are needed to understand the link between PTDSS1 and extra cellular matrix assembly. PMID- 29341483 TI - Use of a human-type communication robot to evaluate the categorized communicative ability of older adults with dementia. PMID- 29341484 TI - Nasal ventilation is an important factor in evaluating the diagnostic value of nasal nitric oxide in allergic rhinitis. AB - BACKGROUND: The role of nasal nitric oxide (NO) in the diagnosis of allergic rhinitis (AR) is controversial. The aim of this study was to identify factors that may affect levels of nasal NO in AR patients and evaluate the role of nasal NO in the diagnosis of AR. METHODS: Seventy-five AR patients and 31 healthy controls were enrolled in this study. AR symptom scores were assessed using the visual analog scale. Eosinophil cationic protein (ECP) was detected by enzyme linked immunoassay, nasal NO was measured using a chemiluminescence analyzer, and nasal airway resistance (NAR) was assessed by active anterior rhinomanometry. RESULTS: Nasal obstruction score, ECP, and NAR were found to be independently associated with nasal NO. Nasal NO level in patients with nasal obstruction score <7 (mild-to-moderate obstruction) was significantly increased compared with healthy subjects (282.1 +/- 122.6 vs 150.7 +/- 48.4 ppb; p < 0.001), and significantly decreased in patients with nasal obstruction score >=7 (severe obstruction) (97.2 +/- 52.2 vs 150.7 +/- 48.4 ppb; p < 0.001). Nasal NO and ECP in secretion were positively correlated in patients with mild-to-moderate nasal obstruction (r = 0.678), but not in patients with severe nasal obstruction (r = 0.077). In patients with NAR <0.65 Pa/cm3 /s, the correlation coefficient was highest between NO and ECP (r = 0.685). The areas under the receiver operating characteristic curve for nasal NO level were 0.878 and 0.939 in patients with nasal obstruction scores <7 and NAR <0.65 Pa/cm3 /s, respectively. CONCLUSION: Nasal patency affects nasal NO level significantly, and may reflect the severity of nasal inflammation in AR patients with mild-to-moderate nasal obstruction, but not in patients with severe nasal obstruction. PMID- 29341485 TI - Development of a chemiluminescence immunoassay using recombinant non-structural epitope-based proteins to accurately differentiate foot-and-mouth disease virus infected and vaccinated bovines. AB - The contamination of inactivated vaccine with non-structural proteins (NSPs) leads to a high false-positive rate, which is a substantial barrier to accurately differentiate foot-and-mouth disease virus (FMDV)-infected animals from vaccinated animals. To address this problem, a new chemiluminescence immunoassay (CLIA) method was developed to detect antibodies targeting the two recombinant epitope-based proteins located in 3A and 3B. The 3Aepitp-3Bepitp CLIA exhibited a diagnostic sensitivity of 94.0% and a diagnostic specificity of 97.5% for the detection of serum samples (naive bovines, n = 52, vaccinated bovines, n = 422, infected bovines, n = 116) from animals with known status. The CLIA method also had a concordance rate of 88.1% with the PrioCHECK FMDV NSP ELISA based on the detection of 270 serum samples from the field. Importantly, the 3Aepitp-3Bepitp CLIA produced no false-positives when used to detect FMDV in samples from bovines that had been vaccinated up to five times, and it was demonstrated a low false positive rate when the bovines had been vaccinated up to ten (2.15%) and fifteen times (5.93%). Therefore, the 3Aepitp-3Bepitp CLIA detects FMDV in samples from frequently vaccinated bovines with high accuracy and represents an alternative method to differentiate FMDV-infected and vaccinated bovines. PMID- 29341486 TI - Rheumatoid arthritis and periodontal disease: What are the similarities and differences? AB - Rheumatoid arthritis (RA) and periodontal disease (PD) are chronic inflammatory diseases that share similar osteoclasia, human leukocyte antigen-DR4 allelic genes and immunological profile, and characteristic cytokines. Smoking can contribute to more severe RA and PD; secretion of pro-inflammatory mediators destroys the soft synovial membrane and periodontium, respectively. Anti citrullinated protein antibodies and anti-alpha-enolase antibody are characteristic of these two diseases. Some studies suggest that PD may be associated with RA. Anti-Porphyromonas gingivalis (P. gingivalis) antibody, but no P. gingivalis bacterium can be detected in RA patients' joint fluid. Anti-P. gingivalis antibody has been seen as a biomarker of RA. Both diseases share some nosogenesis and common pathological pathways. However, there are differing views on the connection between the two diseases. Interferon-inducible-16 (IFI16) is a genic marker of RA; moreover, the association between IFI16 and PD is rare. Some studies suggest PD is related to periodontal parameters and patient's pathological status rather than RA. Disease frequency in men and women differ between these two diseases. The expression of interleukin-17 (IL-17) receptor only associates with different genders in PD (PD of different sexes have different IL-17 expressions). Periodontal local treatment only affects clinical periodontal status, and it does not alter circulating levels of IL-6, tumor necrosis factor-alpha or C-reactive protein which are associated with RA. This review examines the similarities and differences between these two diseases and explores possible interactions. Importantly, we will discuss whether PD is a feature of RA and whether this knowledge provides helpful information in future treatment of both diseases. PMID- 29341487 TI - Identification of stress-related microRNA biomarkers in type 2 diabetes mellitus: A systematic review and meta-analysis. AB - BACKGROUND: Many studies have investigated microRNAs (miRNAs) in the detection of type 2 diabetes mellitus (T2DM). Herein, the dysregulated direction of stress related miRNAs used as biomarkers of T2DM are summarized and analyzed. METHODS: PubMed, EMBASE, ISI Web of Science, and three Chinese databases were searched for case-control miRNA profiling studies about T2DM. A meta-analysis under a random effect was performed. Subgroup analysis was conducted based on different tissues and species. Sensitivity analysis was conducted to confirm the robustness among studies. The effect size was pooled using ln odds ratios (ORs), 95% confidence intervals (95% CIs), and P-values. RESULTS: The present meta-analysis included 39 case-control studies with a total of 494 miRNAs. Only 33 miRNAs were reported in three or more studies and, of these, 18 were inconsistent in their direction of dysregulation. Two significantly dysregulated miRNAs (let-7 g and miR-155) were identified in the meta-analysis. Four miRNAs (miR-142-3p, miR-155, miR-21, and miR-34c-5p) were dysregulated in patients with T2DM, whereas five miRNAs (miR 146a, miR-199a-3p, miR-200b, miR-29b and miR-30e) were dysregulated in animal models of diabetes. In addition, two dysregulated miRNAs (miR-146a and miR-21) were highly cornea specific and heart specific. In sensitivity analysis, only miR 155 was still significantly dysregulated after removing studies with small sample sizes. CONCLUSIONS: The present meta-analysis revealed that 16 stress-related miRNAs were significantly dysregulated in T2DM. MiR-148b, miR-223, miR-130a, miR 19a, miR-26b and miR-27b were selected as potential circulating biomarkers of T2DM. In addition, miR-146a and miR-21 were identified as potential tissue biomarkers of T2DM. PMID- 29341488 TI - Gene-gene interaction between MSX1 and TP63 in Asian case-parent trios with nonsyndromic cleft lip with or without cleft palate. AB - BACKGROUND: Small ubiquitin-like modification, also known as sumoylation, is a crucial post-translational regulatory mechanisms involved in development of the lip and palate. Recent studies reported two sumoylation target genes, MSX1 and TP63, to have achieved genome-wide level significance in tests of association with nonsyndromic clefts. Here, we performed a candidate gene analysis considering gene-gene and gene-environment interaction for SUMO1, MSX1, and TP63 to further explore the etiology of nonsyndromic cleft lip with or without cleft palate (NSCL/P). METHODS: A total of 130 single-nucleotide polymorphisms (SNPs) in or near SUMO1, MSX1, and TP63 was analyzed among 1,038 Asian NSCL/P trios ascertained through an international consortium. Conditional logistic regression models were used to explore gene-gene (G * G) and gene-environment (G * E) interaction involving maternal environmental tobacco smoke and multivitamin supplementation. Bonferroni correction was used for G * E analysis and permutation tests were used for G * G analysis. RESULTS: While transmission disequilibrium tests and gene-environment interaction analysis showed no significant results, we did find signals of gene-gene interaction between SNPs near MSX1 and TP63. Three pairwise interactions yielded significant p values in permutation tests (rs884690 and rs9290890 with p = 9.34 * 10-5 and empirical p = 1.00 * 10-4 , rs1022136 and rs4687098 with p = 2.41 * 10-4 and empirical p = 2.95 * 10-4 , rs6819546 and rs9681004 with p = 5.15 * 10-4 and empirical p = 3.02 * 10 4 ). CONCLUSION: Gene-gene interaction between MSX1 and TP63 may influence the risk of NSCL/P in Asian populations. Our study provided additional understanding of the genetic etiology of NSCL/P and underlined the importance of considering gene-gene interaction in the etiology of this common craniofacial malformation. PMID- 29341489 TI - Palladium-Catalyzed Atom-Transfer Radical Cyclization at Remote Unactivated C(sp3 )-H Sites: Hydrogen-Atom Transfer of Hybrid Vinyl Palladium Radical Intermediates. AB - A novel mild, visible-light-induced palladium-catalyzed hydrogen atom translocation/atom-transfer radical cyclization (HAT/ATRC) cascade has been developed. This protocol involves a 1,5-HAT process of previously unknown hybrid vinyl palladium radical intermediates, thus leading to iodomethyl carbo- and heterocyclic structures. PMID- 29341490 TI - Containing influenza outbreaks with antiviral use in long-term care facilities in Taiwan, 2008-2014. AB - BACKGROUNDS: Influenza can spread rapidly in long-term care facilities (LTCFs), and residents are usually at higher risk for influenza infections. OBJECTIVE: Our study aimed to evaluate the effectiveness of antiviral interventions on outbreak control. METHODS: Taiwan Centers for Disease Control used a syndromic surveillance system to monitor outbreaks in LTCFs. Local public health authorities verified those outbreaks and logged reports to the Epidemic Investigation Report Files Management System (EIRFMS). We conducted a retrospective cohort study by reviewing EIRFMS reports of influenza outbreaks in LTCFs during 2008-2014. An influenza outbreak was defined as 3 or more cases of influenza-like illness occurring within a 48-hours period with >=1 case of real time RT-PCR-confirmed influenza in the same LTCF. Antiviral interventions included providing antiviral treatment for patients and antiviral prophylaxis for contacts during outbreaks. RESULTS: Of 102 influenza outbreaks, median days from onset of the first patient to outbreak notification was 4 (range 0-22). Median attack rate was 24% (range 2.2%-100%). Median influenza vaccination coverage among residents was 81% (range 0%-100%); 43% occurred during the summer months. Even though antiviral treatment was provided in 87% of the outbreaks, antiviral prophylaxis was implemented in only 40%. Starting antiviral treatment within 2 days of outbreak onset was associated with keeping attack rates at <25% (OR 0.29, 95% CI: 0.12-0.71). CONCLUSIONS: Early initiation of antiviral treatment may reduce the magnitude of influenza outbreaks. Clinicians should identify patients with influenza and start antiviral use early to prevent large outbreaks in LTCFs. PMID- 29341492 TI - Winner of the society for biomaterials student award in the Ph.D. category for the annual meeting of the society for biomaterials, april 11-14, 2018, Atlanta, GA: Development of a bimodal, in situ crosslinking method to achieve multifactor release from electrospun gelatin. AB - To better mimic native tissue microenvironments, current efforts have moved beyond single growth factor delivery to more complex multiple growth factor delivery with distinct release profiles. Electrospun gelatin, a widely investigated drug delivery vehicle, requires postprocessing crosslinking techniques that generate a mesh with uniform crosslinking density, limiting the ability to deliver multiple factors at different rates. Herein, we describe a method to independently control release of multiple factors from a single electrospun gelatin mesh. Two in situ crosslinking modalities, photocrosslinking of methacyrlated gelatin and reactive crosslinking of gelatin with a diisocyanate, are coelectrospun to generate distinct fiber populations with different crosslinking chemistry and density in a single mesh. The photocrosslinked gelatin-methacrylate resulted in a relatively rapid release of a model protein (48 +/- 12% at day 1, 96 +/- 3% at day 10) due to diffusion of embedded protein from the crosslinked fibers. The reactive crosslinking system displayed a more sustained release (7 +/- 5% at day 1, 33 +/- 2% at day 10) that was attributed to the conjugation of protein to gelatin with the diisocyanate, requiring degradation of gelatin prior to diffusion out of the fibers. Both modalities displayed tunable release profiles. Subsequent release studies of a cospun mesh with two different crosslinked fiber populations confirmed that the cospun mesh displayed multifactor release with independent release profiles. Overall, this bimodal, in situ crosslinking approach enables the delivery of multiple factors with distinct release kinetics from a single mesh and is expected to have broad utility in tissue engineering. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1155-1164, 2018. PMID- 29341491 TI - Clinical outcomes of carbon ion radiotherapy with concurrent chemotherapy for locally advanced uterine cervical adenocarcinoma in a phase 1/2 clinical trial (Protocol 1001). AB - We conducted a phase 1/2 study to evaluate the efficacy and safety of carbon ion radiotherapy (C-ion RT) with concurrent chemotherapy for locally advanced uterine cervical adenocarcinoma. Thirty-three patients were enrolled between April 2010 and March 2014. Treatment consisted of C-ion RT with concurrent weekly cisplatin at a dose of 40 mg/m2 . In the phase 1 component, the total dose was escalated from 68.0 Gy (relative biological effectiveness [RBE]) to 74.4 Gy (RBE) to determine the maximum tolerated dose of C-ion RT. In the phase 2 component, the efficacy and safety of C-ion RT with concurrent chemotherapy were evaluated using the dose determined in the phase 1 component. The median follow-up duration was 30 months. Two patients did not receive chemotherapy because of anemia or leukocytopenia immediately prior to commencing treatment; 31 patients were analyzed. None of the patients developed dose-limiting toxicities. The recommended dose (RD) was determined to be 74.4 Gy (RBE). In the phase 2 component, two patients developed Grade 3-4 toxicities in the gastrointestinal tract, due to repeated laser coagulation or peritonitis caused by appendicitis. In the patients treated with the RD, the 2-year local control, progression-free survival, and overall survival rates were 71%, 56%, and 88%, respectively. C-ion RT with concurrent weekly cisplatin was well tolerated in patients with locally advanced uterine cervical adenocarcinoma. Our findings support further investigations into the efficacy of this strategy. PMID- 29341493 TI - Modeling the Downstream Processing of Monoclonal Antibodies Reveals Cost Advantages for Continuous Methods for a Broad Range of Manufacturing Scales. AB - The biopharmaceutical industry is evolving in response to changing market conditions, including increasing competition and growing pressures to reduce costs. Single-use (SU) technologies and continuous bioprocessing have attracted attention as potential facilitators of cost-optimized manufacturing for monoclonal antibodies. While disposable bioprocessing has been adopted at many scales of manufacturing, continuous bioprocessing has yet to reach the same level of implementation. In this study, the cost of goods of Pall Life Science's integrated, continuous bioprocessing (ICB) platform is modeled, along with that of purification processes in stainless-steel and SU batch formats. All three models include costs associated with downstream processing only. Evaluation of the models across a broad range of clinical and commercial scenarios reveal that the cost savings gained by switching from stainless-steel to SU batch processing are often amplified by continuous operation. The continuous platform exhibits the lowest cost of goods across 78% of all scenarios modeled here, with the SU batch process having the lowest costs in the rest of the cases. The relative savings demonstrated by the continuous process are greatest at the highest feed titers and volumes. These findings indicate that existing and imminent continuous technologies and equipment can become key enablers for more cost effective manufacturing of biopharmaceuticals. PMID- 29341494 TI - The importance of biomarkers of fetal exposure to alcohol and psychotropic drugs in early diagnosis: A case report. PMID- 29341495 TI - Validation of a fully automated solid-phase extraction and ultra-high-performance liquid chromatography-tandem mass spectrometry method for quantification of 30 pharmaceuticals and metabolites in post-mortem blood and brain samples. AB - In this study, we present the validation of an analytical method capable of quantifying 30 commonly encountered pharmaceuticals and metabolites in whole blood and brain tissue from forensic cases. Solid-phase extraction was performed by a fully automated robotic system, thereby minimising manual labour and human error while increasing sample throughput, robustness, and traceability. The method was validated in blood in terms of selectivity, linear range, matrix effect, extraction recovery, process efficiency, carry-over, stability, precision, and accuracy. Deuterated analogues of each analyte were used as internal standards, which corrected adequately for any inter-individual variability in matrix effects on analyte accuracy and precision. The lower limit of quantification (LLOQ) spanned from 0.0008 to 0.010 mg/kg, depending on the analyte, while the upper LOQ ranged between 0.40 and 2.0 mg/kg. Thus, the linear range covered both therapeutic and toxic levels. The method showed acceptable accuracy and precision, with accuracies ranging from 80 to 118% and precision below 19% for the majority of the analytes. Linear range, matrix effect, extraction recovery, process efficiency, precision, and accuracy were also tested in brain homogenate and the results agreed with those from blood. An additional finding was that the analyte concentrations in brain samples could be quantified by calibration curves obtained from spiked blood samples with acceptable precision and accuracy when using deuterated analogues of each analyte as internal standards. This method has been successfully implemented as a routine analysis procedure for quantification of pharmaceuticals in both blood and brain tissue since 2015. PMID- 29341496 TI - Association of genetic variants in the interleukin-18 gene promoter with risk of hepatocellular carcinoma and metastasis in patients with hepatitis C virus infection. AB - Hepatocellular carcinoma (HCC) is a primary malignancy of the liver, characterized by high vascularization and rapid tumor progression. The current case-control study aimed to analyze the influence of -607C/A and -137G/C polymorphisms in the interleukin-18 (IL-18) promoter on the risk of HCC occurrence and metastasis in Egyptian patients infected with hepatitis C virus (HCV). Both genetic variations were genotyped in 279 subjects including HCV patients with and without HCC and unrelated healthy subjects, using the allele specific polymerase chain reaction (AS-PCR) method. The relationship between clinico-laboratory parameters including serum level of alpha-fetoprotein (AFP) and these polymorphisms was evaluated in HCC patients. The IL-18-607A allele and AA genotype were significantly related to a higher risk of developing HCC when comparing patients with HCC and controls, and were significantly related to a higher risk of metastasis when comparing metastatic and nonmetastatic groups in the Egyptian patients. In contrast, the IL18-137C allele and GC genotype were significantly related to a lower risk of developing HCC when comparing patients with HCC and controls, and HCV patients with and without HCC. A significant association was found between multinodular HCC and IL-18-607AA genotype, while, uninodular HCC was significantly associated with IL-18-137GG genotype. In addition, IL18-607AA and -137GG genotypes showed significant association with higher level of serum AFP. The detection of polymorphisms in the IL-18 promoter, in a combination with an evaluation of level of serum AFP, could be used as a molecular biomarker in the early diagnosis of HCC, which would aid the early management of the disease, thus decreasing the rate of mortality of this disease. (c) 2018 IUBMB Life, 70(2):165-174, 2018. PMID- 29341497 TI - Defining behavioral components of social functioning in adults with autism spectrum disorder as targets for treatment. AB - : There is increasing recognition that adults with autism spectrum disorder (ASD) would benefit from treatment to improve social functioning, a key factor in adults' overall quality of life. However, the various behavioral components of social functioning (i.e., categories of behaviors underlying social functioning), including social motivation, social anxiety, social cognition, and social skills, have not all been assessed together in any sample of adults with ASD, making it difficult to know the relative levels of impairment in these various categories, the relationships among these categories, or promising targets for treatments. We hypothesized there would be significant correlations among measures within the same category, but fewer correlations of measures between categories, indicating the heterogeneity of impairments in adults with ASD. Twenty-nine adults with ASD without co-occurring intellectual disability completed multiple assessments measuring social motivation, social anxiety, social cognition, and social skills, as well as measures of overall ASD symptom levels and community functioning. Results revealed significant positive correlations among measures within most categories; positive correlations between measures of social motivation and all other categories, except for social cognition; as well as positive cross-domain correlations between measures of anxiety and ASD phenotype; measures of social skills and community functioning; and measures of social skills and ASD phenotype. Further studies are warranted to determine causal relationships among these behavioral categories, across developmental stages. However, the lack of correlations between many categories suggests the potential importance of multidimensional treatments that target the particular components of social functioning most in need of improvement in individuals. Autism Res 2018, 11: 488 502. (c) 2017 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: The goal of this study was to measure behaviors that contribute to social functioning difficulties in adults with ASD, with the ultimate goal of guiding treatment development. We found that motivation to interact with others was significantly related to social anxiety and social skill. Our results suggest that motivation may be important to target in treatment, and that treatments should be tailored to the areas most in need of improvement in each individual. PMID- 29341498 TI - Review article: Sepsis in the emergency department - Part 2: Investigations and monitoring. AB - Sepsis is characterised by organ dysfunction resulting from infection, with no reliable single objective test and current diagnosis based on clinical features and results of investigations. In the ED, investigations may be conducted to diagnose infection as the cause of the presenting illness, identify the source, distinguish sepsis from uncomplicated infection (i.e. without organ dysfunction) and/ or risk stratification. Appropriate sample collection for microbiological testing remains key for subsequent confirmation of diagnosis and rationalisation of antimicrobials. Routine laboratory investigations such as creatinine, bilirubin, platelet count and lactate are now critical elements in the diagnosis of sepsis and septic shock. With no biomarker sufficiently validated to rule out bacterial infection in the ED, there remains substantial interest in biomarkers representing various pathogenic pathways. New technologies for screening multiple genes and proteins are identifying unique network 'signatures' of clinical interest. Other future directions include rapid detection of bacterial DNA in blood, genes for antibiotic resistance and EMR-based computational biomarkers that collate multiple information sources. Reliable, cost-effective tests, validated in the ED to promptly and accurately identify sepsis, and to guide initial antibiotic choices, are important goals of current research efforts. PMID- 29341499 TI - Recommendations on diagnostic tools for Batrachochytrium salamandrivorans. AB - Batrachochytrium salamandrivorans (Bsal) poses a major threat to amphibian, and more specifically caudata, diversity. Bsal is currently spreading through Europe, and mitigation measures aimed at stopping its spread and preventing its introduction into naive environments are urgently needed. Screening for presence of Bsal and diagnosis of Bsal-induced disease in amphibians are essential core components of effective mitigation plans. Therefore, the aim of this study was to present an overview of all Bsal diagnostic tools together with their limitations and to suggest guidelines to allow uniform interpretation. Here, we investigate the use of different diagnostic tools in post-mortem detection of Bsal and whether competition between Bd and Bsal occurs in the species-specific Bd and Bsal duplex real-time PCR. We also investigate the diagnostic sensitivity, diagnostic specificity and reproducibility of the Bsal real-time PCR and show the use of immunohistochemistry in diagnosis of Bsal-induced chytridiomycosis in amphibian samples stored in formaldehyde. Additionally, we have drawn up guidelines for the use and interpretation of the different diagnostic tools for Bsal currently available, to facilitate standardization of execution and interpretation. PMID- 29341500 TI - Investigation of the free heavy chain homodimers of a monoclonal antibody. AB - Monoclonal antibodies (mAbs) are composed of two heavy chain (HC) and two light chain (LC) polypeptides. The proper folding and assembly of HC and LC is critical for antibody production. Current dogma indicates that the free HCs are retained in the endoplasmic reticulum (ER) unless assembled with LCs into antibodies, while the LCs on the other hand can be secreted as free monomer or dimer molecules. In this study, high levels of extracellular HC homodimers (7%-45%) were observed in the cell culture media during cell line development for mAb1. Excellent correlation (R2 > 0.9) between the level of free HC homodimers and the percentage of high molecular weight species indicates that the free HC homodimers might be causative of unwanted aggregation. Due to the different surface charge of HC homodimer and fully assembled antibodies, the unwanted extracellular HC homodimers were successfully removed by downstream processing, through a cation exchange chromatography step. Reduced capillary electrophoresis-sodium dodecyl sulfate (rCE-SDS) analysis of the cell culture media from different MTX-amplified pools indicated that insufficient expression of LC is one potential root cause for the high level of free HC homodimers. The level of free HC homodimers decreased significantly (3%-25%) after retransfecting the MTX amplified pools with additional LC gene. (c) 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:738-745, 2018. PMID- 29341501 TI - Tadalafil Improves Symptoms, Erectile Function and Quality of Life in Patients with Lower Urinary Tract Symptoms Suggestive of Benign Prostatic Hyperplasia (KYU PRO Study). AB - OBJECTIVES: Effect of tadalafil on lower urinary tract symptoms (LUTS), erectile function and quality of life (QoL) were prospectively evaluated in patients with benign prostatic hyperplasia (BPH) at multicenter. METHODS: Eligible men were >=40 years who had no treatment with alpha-blocker for BPH, with total International Prostate Symptom Score (IPSS) >=8, IPSS-QOL >=2 and prostate volume >=20 mL. Data were collected on age, body mass index (BMI), and prostate specific antigen (PSA). Patients were asked to complete a self-reported questionnaire regarding the IPSS, Overactive Bladder Symptom Score (OABSS), International Index of Erectile Function 5 (IIEF5), and Medical Outcome Study 8-Item Short-Form Health Survey (SF-8). These measures were assessed at baseline, 4-, 8-, 12-week of tadalafil treatment. In addition, uroflowmetry was also performed at baseline, and 12-week end point visit. RESULTS: Thirty five patients with mean age 67.3 years, mean BMI 23.6 kg/m2 , mean prostate volume 36 mL, and mean PSA 3.4 ng/mL were enrolled. Treatment with tadalafil significantly improved IPSS total score, IPSS voiding subscore, IPSS storage subscore, OABSS and IPSS-QoL score after 4 weeks and these improvements were maintained for 12-week treatment period. IIEF5 score and general health in SF-8 are significantly improved with the treatment of tadalafil. However, maximum flow rate and postvoiding residual volume were not significantly changed. There were not any serious adverse events. CONCLUSIONS: These results indicate that tadalafil 5 mg once daily would be effective and well tolerated treatment in Japanese men with BPH-LUTS. PMID- 29341502 TI - Advances in intravesical therapy for bladder pain syndrome (BPS)/interstitial cystitis (IC). AB - Bladder pain syndrome (BPS)/interstitial cystitis (IC) is a chronic symptom complex that may cause bothersome storage symptoms and pain or discomfort of the bladder, adversely affecting a patient's quality of life. The etiology of IC/BPS remains unclear, and its cause may be multifactorial. Diagnosis of IC/BPS is based on clinical features, and the possibility of other conditions must be ruled out first. Although no definitive treatment is currently available for IC/BPS, various intravesical therapies are used for IC/BPS, including heparin, hyaluronic acid, chondroitin sulfate, pentosan polysulfate, dimethylsulfoxide, liposomes, and botulinum onabotulinumtoxinA (BoNT-A). This review summarizes the intravesical therapy for IC/BPS and discusses recent advances in the instillation of liposomal-mediated BoNT-A and other newly developed intravesical therapies. PMID- 29341503 TI - Tadalafil 5 mg Once Daily Improves Lower Urinary Tract Symptoms and Erectile Dysfunction: A Systematic Review and Meta-analysis. AB - OBJECTIVES: We carried out a systematic review and meta-analysis to assess tadalafil 5 mg once-daily for the treatment of lower urinary tract symptoms (LUTS) and erectile dysfunction (ED). METHODS: A literature review was performed to identify all published randomized double-blind, placebo-controlled trials of tadalafil 5 mg once-daily for the treatment of LUTS and ED. The search included the following databases: MEDLINE, EMBASE, and the Cochrane Controlled Trials Register. The reference lists of the retrieved studies were also investigated. RESULTS: Thirteen publications involving a total of 3973 patients were used in the analysis, including 13 RCTs that compared tadalafil 5 mg once-daily with placebo. We found that tadalafil 5 mg once-daily was effective in improving LUTS suggestive of BPH and treating ED over 12 weeks in our meta-analysis. Total International Prostate Symptom Score (IPSS) (SMD = - 2.02, 95% CI = - 2.52 to 1.53, P < 0.00001); Benign Prostatic Hyperplasia Impact Index (BPH-II) (SMD = 0.58, 95% CI = -0.84 to -0.33, P < 0.00001); International Index of Erectile Function-erectile function (IIEF) domain (standardized mean difference [SMD] = 5.18, 95% confidence interval [CI] = 4.13-6.23, P < 0.00001) indicated that tadalafil 5 mg once-daily was more effective than the placebo. Safety assessments included discontinuations due to adverse event (odds ratio (OR) = 1.79, 95% CI = 1.12-2.85, P = 0.01) indicated that tadalafil 5 mg once-daily was well tolerated. CONCLUSIONS: This meta-analysis indicates that tadalafil 5 mg once-daily to be an effective treatment for LUTS and ED with a low occurrence of side effects. PMID- 29341504 TI - A multi-institutional analysis of children on long-term non-invasive respiratory support and their outcomes. AB - OBJECTIVES: To characterize a multi-institutional cohort of children with chronic respiratory failure that use long-term, non-invasive respiratory support, perform a time-to-event analysis of transitions to transtracheal ventilation and identify factors associated with earlier transition to transtracheal ventilation. STUDY DESIGN: A retrospective cohort study of patients less than 21 years of age with diagnoses associated with chronic respiratory failure and discharged on non invasive respiratory support was performed using data from the Pediatric Health Information System (PHIS) between 2007 and 2015. Demographic and clinical characteristics, as well as times from index discharge on non-invasive support to transtracheal ventilation were presented. A competing risk regression model was fitted to estimate factors associated with earlier transition to transtracheal ventilation. RESULTS: A total of 3802 patients were identified. Their median age at index discharge was 10.4 years (interquartile range [IQR] 4.1-14.9). Of these patients, 337 (8.9%) transitioned to transtracheal ventilation and transitioned at a median of 11.5 months (IQR 4.6-26) post-index discharge, or a median age of 9.3 years (IQR 4.2-14.5). Competing risk modeling demonstrated that patients who were older or whose discharge occurred later in the study period had lower hazards of earlier transition to transtracheal ventilation, whereas patients with anoxia/encephalopathy and quadriplegia had higher hazards of earlier transitioning. CONCLUSIONS: Most patients on long-term, non-invasive respiratory support who progress to transtracheal ventilation transition do so within a few years of support initiation. Various characteristics were associated with earlier risk of transitioning to transtracheal ventilation. This information may enhance anticipatory guidance for this population. PMID- 29341505 TI - Stability, integrity, and recovery rate of cellular nucleic acids preserved in a new liquid-based cytology medium. AB - BACKGROUND: Liquid-based cytology (LBC) has replaced the conventional Papanicolaou test in cervical cancer screening. The cervical swab specimens collected in LBC media can also be used for additional analyses including high risk HPV (HR-HPV) test, DNA methylation analysis, and HPV E6/E7 mRNA test. METHODS: The stability, integrity, and recovery rate of cellular DNA and RNA after storage at different conditions were evaluated by a quantitative real-time PCR (qPCR) based HR-HPV test, reverse transcription qPCR (RT-qPCR), and agarose gel electrophoresis. Cervical swab specimens collected in a newly developed LBC medium, VersaMedium, and ThinPrep PreservCyt medium were processed on Hologic ThinPrep 5000 instrument. RESULTS: Cervical exfoliative cells fixed by VersaMedium exhibited good cellular morphology with intact membranes and delineated chromatin structures. Cellular DNA preserved in VersaMedium exhibited high level of stability at both room temperature and 4 degrees C, and remained mostly intact at 4 degrees C for up to 28 days. Cellular RNA preserved in VersaMedium maintained higher level of stability and integrity at 4 degrees C than at room temperature. VersaMedium also showed no apparent adverse effect on the recovery rate of nucleic acids. CONCLUSION: In addition to maintaining cellular morphology, when stored at 4 degrees C, VersaMedium preserves cellular nucleic acids and PreservCyt medium without noticeable adverse effects on the recovery rate during purification. Therefore, VersaMedium is an appropriate LBC medium for the collection and preservation of cervical swab specimens. And VersaMedium preserved cellular nucleic acids are of such high quality that they are suitable for HR-HPV qPCR test and RT-qPCR analyses. PMID- 29341507 TI - Residents Rosters: Reversal to Longer Hours in the US. PMID- 29341508 TI - Delirium and the acute hospital system of the Republic of Ireland: Challenges, solutions and opportunities. PMID- 29341506 TI - Impact of preoperative anemia on outcomes in patients undergoing curative resection for gastric cancer: a single-institution retrospective analysis of 2163 Chinese patients. AB - We sought to evaluate whether preoperative anemia was an important determinant of survival in gastric cancer (GC). A single institution cohort of 2163 GC patients who underwent curative resection were retrospectively analyzed. Anemia was defined as a preoperative hemoglobin level <120 g/L in males and <110 g/L in females. Overall survival (OS) was analyzed using the Kaplan-Meier method, and a multivariate Cox proportional hazards model was performed to identify the independent prognostic factor. Anemic patients had a poorer OS compared with nonanemic patients after resection for tumor-nodes-metastasis (TNM) stage III tumors (5-year OS rate: 32.2% vs. 45.7%, P < 0.001) but not stage I (P = 0.480) or stage II (P = 0.917) tumors. Multivariate analysis revealed that preoperative anemia was an independent prognostic factor in TNM stage III (hazard ratio [HR], 1.771; 95% CI, 1.040-3.015; P = 0.035). In a stage-stratified analysis, preoperative anemia was still independently associated with OS in TNM stages IIIa through IIIc (P < 0.001, P = 0.075, and P = 0.012, respectively), though the association was only marginal in stage IIIb. Of note, preoperative mild anemia had a similar prognostic value in TNM stage III GC. Furthermore, preoperative anemia was significantly associated with more perioperative transfusions, postoperative complications and several nutritional-based indices, including the prognostic nutritional index (PNI), preoperative weight loss and performance status (all P < 0.05). Preoperative anemia, even mild anemia, was an important predictor of postoperative survival for TNM stage III GC. PMID- 29341509 TI - Effect of the 2008 economic crisis on the cardiovascular mortality of the Irish population: an ecological 12-year study of a heart-broken Celtic Tiger. AB - Ireland has endured a substantial financial crisis in 2008 and we sought to explore the effect of economic recession on Irish cardiovascular mortality. We found an increase by 17.2% in CVA-deaths during the financial crisis years (95% CI 11.1% to 23.6%). In males, we found a notable rise in the annual IHD rate by 7.56% (95% CI 4.73% to 10.46%), in annual MI rate by 2.96% (95% CI 0.16% to 5.84%), and in annual CVA death rate by 20.07% (95% CI 16.13% to 24.14%). In females our findings indicated an increased rate of CVA-related deaths during the economic crisis by 15.54% (95% CI 6.67% to 25.16%). Irish CVA-related deaths increased during the economic crisis for males and females alike. Male IHD related deaths have also risen indicating a potential differential effect for financial hardships on male gender mortality. PMID- 29341510 TI - Maternity Ultrasound in the Republic of Ireland 2016; A Review. AB - Antenatal ultrasound, comprising of a dating ultrasound in the late first trimester followed by a fetal anomaly scan, is a recognised and necessary component of good antenatal care. We conducted a telephone survey of all 19 obstetric units to ascertain the status of maternity ultrasound provision in Ireland. Fetal anomaly ultrasound is offered universally to all women in 7/19 (37%) units, selectively to some women in 7/19 (37%) units and not offered at all in the remaining 5/19 (26%) units. Overall ? 41,700 (64%) women receive a fetal anomaly ultrasound nationally. Universal first trimester ultrasound, performed in a dedicated ultrasound department by a suitably qualified sonographer, is offered to 47% of women nationally. This study highlights the lack of development in Irish maternity ultrasound services over the last decade. Substantial investment by health care policy makers is urgently needed. PMID- 29341511 TI - Age Adjusted D-Dimer for exclusion of Pulmonary Embolism: a retrospective cohort study. AB - D-Dimer (DD) will increase with age and recent studies have shown the upper limit of normal can be raised in those who are low risk and over 50. We studied age adjusted D-dimer (AADD) levels to assess whether pulmonary embolism (PE) could be safely excluded. This study analysed the Emergency Department (ED) Computed Tomographic Pulmonary Angiography (CTPA) requests. There were 756 requests. The parameters studied were; age, DD value, calculated AADD, CT result and Simplified Geneva Score (SGS). The primary outcome was the diagnostic performance of AADD. One hundred and eighty-five patients were included in the final cohort. Twenty one patients had a negative DD after age adjustment. Of these one had a PE, corresponding to a failure rate of 4.76% (1 in 22). The sensitivity of AADD was 0.96 (95% CI 0.76 to 0.99) and its specificity was 0.12 (95% CI 0.08- 0.19). AADD demonstrated a reduction in false positives with one false negative, giving rise to a failure rate higher than that of other larger studies. Further study is indicated to accurately define the diagnostic characteristics for the Irish context. PMID- 29341512 TI - Food Allergy Emergencies in Children - To what extent are Early Years Services Prepared? A cross-sectional survey. AB - Food allergies are common in preschool children. This study's aims are to establish prevalence, to clarify management practices, levels of preparedness and the perceived role of General Practitioners amongst Early Years Services providers. This study is an anonymous, quantitative, cross sectional study. An online questionnaire was distributed to 282 Early Years Service providers. Data were analysed using SPSS. Response rate was 35% (n=98). Prevalence of food allergy was 3% (n=119). Allergic reactions to food had occurred on site in 16% (n=15). Written emergency action plans were available in 47% of facilities (n=46). Medications were not kept on site in 63% (n=62) of facilities. General practitioners were felt to have an important role in the management of food allergies by 76% of respondents (n=61). This study identifies significant areas for improvement in the management of food allergic child in Early Years Services. PMID- 29341513 TI - Investment in epilepsy monitoring units improves epilepsy care-experience in a regional neuroscience centre. AB - An evaluation of the clinical yield of inpatient long-term video-EEG (vEEG) in a new epilepsy monitoring unit (EMU) was undertaken, with findings compared to the centre's prior method of bedside vEEG recording in a standard neurology ward, as reported in 2004. A retrospective analysis of neurophysiology reports for all adults who underwent elective vEEG monitoring in the EMU at Cork University Hospital between January 2015 and July 2016 was conducted. Of 115 vEEG studies in the EMU, 100 (87.0%) were deemed diagnostically conclusive, 14 (12.2%) failed to catch any clinical events and showed normal EEG throughout, and one (0.9%) captured spells of unclear clinical significance - the corresponding figures reported in 2004 for bedside vEEGs were 21.3%, 77% and 1.6%, respectively. The EMU offers a more effective method of recording inpatient vEEG, which aids decision-making and improves clinical outcomes. Some evidence-based measures which could further enhance diagnostic yield are discussed. PMID- 29341514 TI - Opportunity Costs in Paediatric Training: The Specialist Registrars Experience. AB - In the training process, there is a tension between the work life and home life of trainees. This study explored both the personal impact and the opportunity costs of training from the Specialist Paediatric Registrar (SPR) perspective. The survey explored 1) career progression, 2) perceived functional effectiveness at work, 3) psychological impact of hospital based training, and 4) the personal and social cost of training. Fifty-three (71%) SPRs responded of whom 47 (89%)were married or in long term relationships. Seventy-five percent of trainees had a definite career plan with 86% intending to undertake fellowship training. Seventy percent believed they were efficient time managers but 53% had difficulty in making time for academic pursuits and fifty percent experienced negative feelings, which lingered after work and interfered with their relationships at home. Seventy-four percent stated training was undertaken at significant personal cost with only 21% achieving a very satisfactory work/life balance. To address these difficulties trainee wellbeing should be addressed at the Basic Specialist Training (BST) level and the career path clearly explained outlining the challenges that are likely to be encountered. PMID- 29341515 TI - The Uptake of Human Papillomavirus Vaccine In Irish Schools: The Impact Of Disadvantage. AB - HPV vaccine Gardasil(c) is offered to girls in first year of secondary school in Ireland. We aimed to determine the association between HPV vaccine uptake among girls for academic year 2013/2014, by school and school characteristics: socioeconomic disadvantage and religious ethos. The National Schools Immunisation System (SIS) was searched to determine HPV vaccine uptake in schools for 2013/2014 (prior to recent anti-HPV vaccine publicity). The disadvantaged status and ethos of each school was added to the report. In total 577 schools were identified. Mean vaccine uptake was 83.7%. Disadvantaged schools had a lower mean uptake (%) than other schools (79.4% vs 85.0%, difference 5.58%, 95%CI 2.69-8.21) and were twice as likely to have an uptake of ?50% (OR 2.07, 95% CI 2.76 - 5.18). No difference was found between schools of different ethoses. HPV vaccine uptake is lower in disadvantaged Irish schools. Policies should be developed to ensure a more equitable uptake of HPV vaccine. PMID- 29341516 TI - Epithelioid Angiomyolipoma - a case report and review of the literature. AB - Herein we present the case of a 43-year-old female in whom a left renal mass was identified incidentally on imaging performed for staging of a newly diagnosed breast carcinoma. The mass was resected and histologic examination and immunohistochemistry confirmed a diagnosis of epithelioid angiomyolipoma. PMID- 29341517 TI - Proliferative myositis of the latissimus dorsi presenting in a 20-year-old male athlete. AB - We describe the case of a 20-year-old rower presenting with an uncommon condition of Proliferative Myositis (PM) affecting the Latissimus Dorsi (LD). PM is a rare, benign tumour infrequently developing in the upper back. Its rapid growth and firm consistency may mistake it for sarcoma at presentation. Therefore, careful multidisciplinary work-up is crucial, and should involve appropriate radiological and histopathological investigations. Here, we propose the aetiology of LD PM to be persistent myotrauma induced by repetitive rowing motions. Symptoms and rate of progression ultimately determine the management which includes surveillance and/or conservative resection. There have been no documented cases of recurrence or malignant transformation. PMID- 29341518 TI - Harlequin Ichthyosis - A Case Report. AB - Harlequin Ichthyosis is a very rare genetic disorder affecting mainly the skin with severe morbidity and mortality. It affects both sexes with incidence of about 1 in 300,000 live births. Autosomal recessive inheritance has been inferred with mutation in ABCA 12 gene identified. Hence, genetic counseling and mutation screening of this gene should be considered in at-risk patients. Death usually occurred in the first 3 months of life due to sepsis, feeding problems and respiratory distress. With improved neonatal care and early introduction of retinoids, its survival rate has increased. PMID- 29341519 TI - Pelvic and acetabular trauma care in Ireland: the past, present and future. PMID- 29341520 TI - Reclassification of Category 1-Caesarean Section. PMID- 29341521 TI - 2015-2016 Influenza Season in an Irish Regional Paediatric Unit: Importance of Influenza Vaccination Highlighted. PMID- 29341522 TI - Echo Requests in light of Appropriate Use Criteria. PMID- 29341523 TI - ? PMID- 29341524 TI - [What's new in Ambulatory General Internal Medicine ?] AB - Many treatments are used every day in general medicine without any evidence of their efficacy. This last year, three randomised studies tried to prove the clinical utility of chondroitin/glucosamine in arthritis, cranberry in urinary infections, and acupuncture in migraine. Screening and management of prostate cancer are still controversial. Two recent studies help us advising our patients on this difficult topic. Muscle side effects from statins are well known and have been widely relayed by the press these last years, although myopathies are rare in clinical trials. A new study try to determine if negative expectations could favor such adverse events. PMID- 29341525 TI - [General internal medicine : 2017 scientific breakthroughs in ambulatory care]. AB - Bariatric surgery improves glycemic control in obese patients with diabetes type 2. Dual antiplatelet therapy can be maintained beyond 12 months after a myocardial infarction. Levothyroxine is not beneficial among patients >= 65 years that have subclinical hypothyroidism. Prophylactic anticoagulation in lower limb immobilisation should be reserved only for patients with a high risk of thromboembolism. A diagnosis of asthma should be initially confirmed by a spirometry if clinically suspected. A proton pump inhibitor is indicated for patients >= 65 years that are treated with aspirin. Beta-lactams should not be avoided in patients with a previous history of non-severe allergy. General internists overestimate harms and benefits of common medical tests and treatments. PMID- 29341526 TI - [The internal medicine articles that struck us the most in 2017]. AB - 2017 has continued to bring important progress in all areas of internal medicine, impacting our daily practice. From bedside screening for beta-lactam allergies, to statins as primary prevention in the elderly, SGLT2 inhibitors in heart failure, azithromycin in severe asthmatics and tofacitinib in ulcero-haemorrhagic recto-colitis, internal medicine journals are full of novelties. Every year, the chief residents of the CHUV internal medicine ward meet up to share their readings: here is their selection of eleven articles, chosen, summarized and commented for you. PMID- 29341527 TI - [Recent advances in internal medicine]. AB - In medicine, there are progresses which radically transform practices, change recommendations and win unanimous support in the medical community. There are some which divide, questioning principles that seemed established. There are also small advances, which can answer the questions that internists ask themselves in the daily care of their patients. Here are several articles published in 2017, read and commented for you by hospitalists, selected according to their impact on the medical world. PMID- 29341528 TI - [N-acetylcysteine : effective treatment in severe alcoholic hepatitis ?] AB - The use of N-acetylcysteine is of unknown significance when it comes to acute liver failure of other origin but for paracetamol overdose. Current data state its beneficial use when added to standard treatment for acute alcoholic hepatitis, whereas this attitude is less clear for hepatitis of variable other origin. This review of literature attends to evaluate and reveal the possible interest of adding N-acetylcysteine to standard care of acute liver failure due to alcoholism or other non-paracetamol linked causes. PMID- 29341529 TI - [When the ward overflows : the impact of outlying beds on patient care]. AB - Due to the chronic lack of beds in hospitals, patients are often hospitalized in other departments (outlier patients), with a responsible physician working in another department. This causes increased thromboembolics risks, nosocomial infections, falls and delirium in the elderly, morbidity and mortality. Outlier patients, compared to standard patients, stay longer in the emergency department and their discharge documents are available later. Outlying is used daily in the CHUV hospital and new strategies are elaborated to manage patient flow, especially during the flu epidemic. The purpose of this article is to review the literature on this subject. PMID- 29341530 TI - ? PMID- 29341531 TI - ? PMID- 29341532 TI - ? PMID- 29341533 TI - ? PMID- 29341535 TI - ? PMID- 29341534 TI - ? PMID- 29341536 TI - ? PMID- 29341538 TI - ? PMID- 29341537 TI - ? PMID- 29341539 TI - ? PMID- 29341540 TI - ? PMID- 29341541 TI - Radiotherapy fiber dosimeter probes based on silver-only coated hollow glass waveguides. AB - Manifestation of Cerenkov radiation as a contaminating signal is a significant issue in radiation therapy dose measurement by fiber-coupled scintillator dosimeters. To enhance the scintillation signal transmission while minimizing Cerenkov radiation contamination, we designed a fiber probe using a silver-only coated hollow waveguide (HWG). The HWG with scintillator inserted in its tip, embedded in tissue-mimicking phantoms, was irradiated with clinical electron and photon beams generated by a medical linear accelerator. Optical spectra of the irradiated tip were taken using a fiber spectrometer, and the signal was deconvolved with a linear fitting algorithm. The resultant decomposed spectra of the scintillator with and without Cerenkov correction were in agreement with measurements performed by a standard electron diode and ion chamber for electron and photon beam dosimetry, respectively, indicating the minimal effect of Cerenkov contamination in the HWG-based dosimeter. Furthermore, compared with a silver/dielectric-coated HWG fiber dosimeter design, we observed higher signal transmission in the design based on the use of silver-only HWG. PMID- 29341542 TI - Intrinsic fluorescence for cervical precancer detection using polarized light based in-house fabricated portable device. AB - An in-house fabricated portable device has been tested to detect cervical precancer through the intrinsic fluorescence from human cervix of the whole uterus in a clinical setting. A previously validated technique based on simultaneously acquired polarized fluorescence and polarized elastic scattering spectra from a turbid medium is used to extract the intrinsic fluorescence. Using a diode laser at 405 nm, intrinsic fluorescence of flavin adenine dinucleotide, which is the dominant fluorophore and other contributing fluorophores in the epithelium of cervical tissue, has been extracted. Different grades of cervical precancer (cervical intraepithelial neoplasia; CIN) have been discriminated using principal component analysis-based Mahalanobis distance and linear discriminant analysis. Normal, CIN I and CIN II samples have been discriminated from one another with high sensitivity and specificity at 95% confidence level. This ex vivo study with cervix of whole uterus samples immediately after hysterectomy in a clinical environment indicates that the in-house fabricated portable device has the potential to be used as a screening tool for in vivo precancer detection using intrinsic fluorescence. PMID- 29341543 TI - Improved axial point spread function in a two-frequency laser scanning confocal fluorescence microscope. AB - A two-frequency laser scanning confocal fluorescence microscope (TF-LSCFM) based on intensity modulated fluorescence signal detection was proposed. The specimen induced spherical aberration and scattering effect were suppressed intrinsically, and high image contrast was presented due to heterodyne interference. An improved axial point spread function in a TF-LSCFM compared with a conventional laser scanning confocal fluorescence microscope was demonstrated and discussed. PMID- 29341544 TI - ? PMID- 29341545 TI - ? PMID- 29341546 TI - ? PMID- 29341547 TI - ? PMID- 29341548 TI - ? PMID- 29341549 TI - ? PMID- 29341550 TI - Health stewardship: a concept for best health outcomes. AB - The concept of health stewardship and responsibility for self, marks a shift from adopting a paternalistic approach to care, with decision-making the main remit of healthcare practitioners, towards encouraging and empowering individuals to take increasing responsibility for their healthcare and outcomes. The main aim of nursing is to achieve optimal health outcomes for every patient. Exploring health stewardship as a path to wellness will assist healthcare practitioners to guide patients living with a chronic disease to be as healthy as possible. PMID- 29341551 TI - Reflection on curative treatment versus palliation of symptoms in end of life care. AB - The conflicting tasks of treating or managing disease and preparing patients and their families for the end of life are well documented in haematology and palliative care settings. This article is a reflection on practice by a nursing student who was in the fourth year of an internship, and discusses a case study involving a woman at the end of life. It considers the approach to palliative and end of life care adopted in an oncology and haematology ward where there was a reluctance to be realistic about the limitations of treatments among some healthcare practitioners, who did not want to dispel unrealistic expectations of the patient's recovery as a result of continuing treatment. This reflection focuses on the care of a patient at the end of life and the frustration experienced by the nursing student at their inability to alter the direction of treatment from curative treatment to the palliation of symptoms. PMID- 29341552 TI - Developing the organisational culture in a healthcare setting. AB - This article aims to define organisational culture and explain why it is important to patients, carers and those working in healthcare environments. Organisational culture is not a new concept and the literature on the subject is well-established. However, because of the changing dynamics of the NHS, there has been a shift away from 'what' the NHS stands for, often relating to its history and rituals, to 'who' it functions for, including how healthcare professionals such as nurses can develop and drive the organisational culture. The article seeks to assist nurses in understanding the role of organisational culture, as well as implementing its main principles in the workplace. PMID- 29341553 TI - Pulmonary sequestration mimicring lun cancer: A case report. AB - Introduction: Pulmonary sequestration is a rare congenital anomaly and most intralobar sequestrations were located in lower lobes. Case report: We reported an unusual 28-yearold female patient with intralobar pulmonary sequestration on the left lower lobe, successfully treated with lobectomy. Computed tomography (CT) of the chest with intravenous contrast revealed multiple clustered cystic lesions in the left lower lobe with aberrant artery from descedenting aorta. Additional aortography showed an aberrant artery (3 mm in diameter) arising from the abdominal aorta and flowing into the lesion. Conclusion: Standard therapy regimen for pulmonary sequestration includes surgery. CT scan of thorax with intravenous contrast and aortography represent the gold standard for its diagnosis. Tumor-like shadows seen on the chest radiography or CT scans should not be always suspected on malignant lesions. PMID- 29341554 TI - Hyperparathyroidism as a cause of recurrent acute pancreatitis: A case report. AB - Introduction: One of the more uncommon etiological factors responsible for the development of acute pancreatitis (AP) is hypercalcemia. Hyperparathyroidism (HPT), as a cause of hypercalcemia, is responsible for 1.5-13% of AP according to a number of studies. A mechanism of the development of AP in hyperparathyroidism is still unclear. Case report: We presented a 47-year-old female patient, who had five episodes of AP in total before the etiological factors were finally determined. The patient had certain comorbidities which were considered to be potential causes of AP. She had chronic renal insufficiency (she was on a regular hemodialysis program), systemic lupus erythematosus and mioma uteri. She used to regularly take an antiepileptic drug (combination of sodium valproate and valproic acid). During the fifth episode of AP, the serum calcium level was for the first time elevated to twice the normal value. Level of parathyroid hormone was several times higher. A static scintigraphy found hyperplasia or hyperfunctional adenoma of the right inferior and superior parathyroid glands. Abdominal multislice computed tomography (MSCT) scan verified the enlargement of the entire pancreas, as well as the presence of heterogeneous structures with diffuse amorphous calcifications. The lytic lesions in the pelvic bones could be seen in both sides. Parathyroidectomy was being postponed by an endocrine surgeon because of the poor overall condition of the patient. In the next period the patient had five more episodes of AP. The condition was significantly contributed by increasingly more frequent and longer episodes of metrorrhagia. Despite all therapeutic measures that were taken, systemic inflammatory response syndrome (SIRS) developed, and fatal outcome occurred. Conclusion: In case of recurrent pancreatitis, hyperparathyroidism is to be considered even if a significant elevation of serum calcium is not present. This is especially the case for patients with chronic renal insufficiency or impaired vitamin D metabolism, who have a higher risk of secondary hyperthyroidism. PMID- 29341561 TI - Massive fetomaternal hemorrhage as a cause of severe fetal anemia. AB - Introduction: Fetomaternal hemorrhage (FMH) is a transfu-sion of fetal blood into the maternal circulation. A volume of transfused fetal blood required to cause severe, life-threatening fetal anemia, is not clearly defined. Some authors suggest vol-umes of 80 mL and 150 mL as a threshold which defines mas-sive FMH. Therefore, a rate of massive FMH is 1 : 1,000 and 1 : 5,000 births, respectively. Fetal and neonatal anemia is one of the most serious complications of the FMH. Clinical manifesta-tions of FMH are nonspecific, and mostly it presented as re duced fetal movements and changes in cardiotocography (CTG). The standard for diagnosing FMH is Kleihaurer-Betke test. Case report: A 34-year-old gravida (G) 1, para (P) 1 was hospitalized due to uterine contractions at 39 weeks of gesta tion. CTG monitoring revealed sinusoidal fetal heart rate and clinical examination showed complete cervical dilatation. Im-mediately after admission, the women delivered vaginally. Ap-gar scores were 1 and 2 at the first and fifth minute, respec-tively. Immediately baby was intubated and mechanical ventila-tion started. Initial analysis revealed pronounced acidosis and severe anemia. The patient received intravenous fluid therapy with sodium-bicarbonate as well as red cell transfusion. With all measures, the condition of the baby improved with normaliza-tion of hemoglobin level and blood pH. Kleihaurer-Betke test revealed the presence of fetal red cells in maternal circulation, equivalent to 531 mL blood loss. The level of maternal fetal hemoglobin (HbF) and elevated alpha fetoprotein also con-firmed the diagnosis of massive FMH. Conclusion: For the successful diagnosis and management of FMH direct commu-nication between the obstetrician and the pediatrician is neces-sary as presented in this report. PMID- 29341562 TI - Synchronous mantle cell lymphoma and prostate adenocarcinoma-is it just a coincidence? AB - Introduction: Synchronous occurrence of lymphomas and other cancers, mostly carcinomas are well established. The most of cases describe chronic lymphocytic leukemia as the leading lymphoproliferative disease with the tendency towards secondary malignancies development. Mantle cell lymphoma (MCL) has been described in only 2 cases to co-occur with prostate adenocarcinoma (PAC). There are scarce data about the connection between MCL and urology cancers. We presented the first case of synchronous occurrence of MCL and PAC in the same patient in Serbia. Case report: A 64-year-old male initially presented with fatigue, splenomegaly, and bicytopenia. The bone marrow biopsy specimen revealed extensive infiltration with MCL. During lymphoma staging procedure prostate enlargement (57 mm) was accidentally found by multislice- computed tomography (MSCT). The serum prostate specific antigen (PSA) was elevated (52 ng/mL; normal values <= 4 ng/mL). Transrectal ultrasound biopsy revealed PAC. High Gleason score determined high risk locally advanced PAC. The patient underwent treatment with chemotherapy and hormone therapy due to the existence of double malignancies. Cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) was applied for MCL, and luteinizing hormonereleasing hormone (LHRH) agonist, triptorelin, for PAC. Partial response was obtained for MCL, and stable disease for PAC. In a 1.5-year observation period the patient was still disease progression free for both of malignancies. Conclusion: This case points aut that elderly males are in need for careful observation during the staging procedure for lymphoma. The literature data suggest that MCL patients are in increased risk for urologic malignancies development. However, the etiologic connection between these two entities, except male gender and older age, remains unclear. PMID- 29341563 TI - Consumption of antihistamines in Serbia in the period 2011-2015 and the correlation with adverse drug reaction reports. PMID- 29341564 TI - FMR1 gene mutations cause neurodevelopmental-degenerative disorders: Importance of fragile X testing in Serbia PMID- 29341565 TI - Psoriasis is the independent factor for early atherosclerosis: A prospective study of cardiometabolic risk profile. AB - Background/Aim: Psoriasis as multisystemic inflammatory dis-ease is related with an increased cardiometabolic risk. The aim of the study was to analyze risk biomarkers, peripheral and renal arteries ultrasonography and echocardiography for subclinical atherosclerosis and metabolic disease in 106 subjects (66 psoriasis patients and 40 controls, 20 eczema patients and 20 healthy volunteers). Methods: In all exameenes following parameters were analyzed: body mass index (BMI), C-reactive protein, D-dimer, serum amyloid A (SAA), apolipoprotein (Apo) A1, ApoB, ApoB/Apo A1 index, fasting glucose, C-peptide, fasting insulinemia, homeostatic model assessment-insulin resistance (HOMA-IR), HOMA-beta-cell, lipid profile, serum uric acid concentration (SUAC), 24-h proteinuria and microalbuminuria. Carotid, brachial, femoral and renal arteries ultrasonography, as well as echocardiography was also performed. Results: Five of 66 (7.6%) psoriasis patients had metabolic syndrome (not present in both control groups). The following variables were increased in patients with psoriasis compared to both control groups: BMI (p = 0.012), insulinemia (p < 0.001), HOMA IR (p = 0.003), HOMA-beta cell (p < 0.001), SUAC (p = 0.006), ApoB/ApoA1 ra-tio (p = 0.006) and microalbuminuria (p < 0.001). Also, increased C-peptide (p = 0.034), D-dimer (p = 0.029), triglycerides (p = 0.044), SAA (p = 0.005) and decreased ApoA1 (p = 0.014) were found in the psoriasis patients compared to healthy controls. HDL cholesterol was decreased in the psoriasis patients compared to the control group of eczema patients (p = 0.004). Common carotid (CIMT) and femoral artery intima-media thickness (FIMT) was significantly greater (p < 0.001) and the maximal flow speed (cm/s) in brachial artery significantly de creased (p = 0.017) in the patients with psoriasis in comparison to both control groups. In multivariate logistic regression analysis, after the adjustment for confounding variables, the most important predictor of CIMT and FIMT was the diagnosis of psoriasis (p < 0.001).. Conclusion: Cardiometabolic risk biomarkers and ultrasonographic signs of early atherosclerosis are correlated with the diagnosis of psoriasis, and not to generalized eczema. Psoriasis was found to be an independent risk factor for subclinical atherosclerosis PMID- 29341566 TI - Prevalence of dental caries in hospitalized patients with schizophrenia. AB - Background/Aim: It is considered that over 450 million people worldwide suffer from some form of mental disorder. Previous studies in other countries have shown that schizophrenia is among the most frequent. Oral health is significant for general health and should not be separated from mental health. Studies in other countries have shown an increased incidence of carious and extracted teeth, and less incidence of filled teeth in this group of psychiatric patients. The aim of this study was to establish condition of the existing teeth, to determine the prevalence of caries and to consider possible risk factors that contribute to the current oral health status of hospitalized patients with schizophrenia. Methods: The study comprised 190 patients with schizophrenia, hospitalized at the Clinic for Psychiatric Disorders "Dr. Laza Lazarevic" in Belgrade, and 190 mentally healthy patients at the Clinic for Periodontology and Oral Medicine, Faculty of Dental Medicine in Belgrade. The decayed, missing, filled (DMF) index, sociodemographic and economic characteristics were registered in both groups, as well as characteristics of the primary disease of hospitalized patients with schizophrenia. Results: The value of DMF index (representing the sum of carious, extracted and filled teeth), in the hospitalized patients with schizophrenia was 18.57 +/- 7.07 and 12.47 +/- 5.64 in the healthy group (p = 0.000). The structure of the DMF index in the study group showed that caries and extracted teeth dominated with 88.1%; in the control group, filled teeth dominated with 55.6%, which was a statistically significant difference for all the three observed variables Conclusion: Hospitalized patients with schizophrenia had twice as many caries and extracted teeth, and five time less filled teeth than healthy people. The patient's age and taking antiparkinsonics were established as predictors of the increased DMF index in hospitalized patients with schizophrenia. PMID- 29341567 TI - Community-acquired urinary tract infections: Causative agents and their resistance to antimicrobial drugs. AB - Background/Aim: Urinary tract infections (UTIs) are among the most common infections in outpatients. The aim of this study was to define the causative agents of urinary tract infections and their resistance to antimicrobial drugs in the urban area of central Serbia, as well as to evaluate eventual differences associated with age and gender of the patients. Methods: This retrospective study analysed data taken from routine, consecutively collected urine cultures of outpatients with symptomatic UTIs, collected from the Department of Microbiology, Institute of Public Health in Kragujevac, Serbia, from January 2009 to December 2013. Results: There were 71,905 urine cultures, and 24,713 (34.37%) of them were positive for bacterial pathogens. The most common pathogen was Escherichia coli (E. coli) (56.56%), followed by Klebsiella spp. (16.20%), Proteus spp. (14.68%), Enterococcus spp. (5.29%) and Pseudomonas aeruginosa (3.74%). E. coli and Enterococcus spp. isolation rates were lower in males >= 60 years old (23.71% and 4.87%, respectively), while Klebsiella spp. was more prevalent in this group (32.06%). The most common causative agents isolated from 15-29 years old male patients were Enterococcus spp. and Pseudomonas aeruginosa (13.28% each). Among women, the isolation rate of E.coli was high in all age groups (around 70%). Proteus spp. was frequently isolated from females <= 14 years old (13.27%), while Klebsiella spp. was the most frequent in the oldest age female group (10.99%). Conclusion: Choice of antibiotics for treatment of UTIs should be governed not only by the local resistance patterns, but also by gender and age of patients. PMID- 29341568 TI - Stigmatization and discrimination of patients with chronic hepatitis C. AB - Background/Aim: Chronic hepatitis C (CHC) is often associated with injectable drug users and human immunodeficiency virus coinfection for which there is stigmatization in society. The aim of this study was to identify the presence of stigma and discrimination of patients with CHC, as well as the influence of sociodemographic factors on the occurrence of stigmatization. Methods: A cross sectional study was performed. Patients with CHC and conducted antiviral therapy completed an anonymous structured questionnaire consisting of sociodemographic questions and Hepatitis C stigma scale. Results: Out of 154 patients 61.7% were male and 72.1% from the city; 59.7% have completed secondary school; 61.7% were employed before the disease while 31.8% after the disease; 45.5% were unsatisfactory with financial situation; 54.5% were married; 37.7% lived with a spouse and children; 86.4% in their own house/apartment; 5.2% of the patients were abandoned by their partners, while 35.7% consumed drugs. A statistical significance of the stigma score was found in those who lived in the city (p = 0.018), unmarried (p = 0.005), abandoned by the partners after the diagnosis of CHC (p < 0.001), drug users (p = 0.002) and those living with parents (p = 0.034). Univariate regression analysis singled out as significant: residence (p = 0.018), living with their parents (p = 0.046), abandonment by a partner (p < 0.001) and drug use (p = 0.002). A multivariate regression model of independent variables singled out abandonment by partners (Beta = 5.158, p = 0.007). Men disagree significantly with the two elements inside stigma [not the same as the others (p = 0.035)] and hurt by the reaction of others (p = 0.047)). Conclusion: The presence of stigma in patients with CHC was proven. The results indicate the need to strengthen anti-stigma programs that will reduce their psychological and social problems and reduce stigmatization in society. PMID- 29341569 TI - Agreement between admission and discharge diagnoses: Analysis by the groups of international classification of diseases, 10th revision. AB - Background/Aim: Admission diagnosis represents the diagnosis of an illness, injury or condition due to which a patient is referred to hospital to be admitted. Discharge diagnosis represents the main reason of illness or condition due to which a patient is admitted. The aim of this study was to analyze the agreement between admission diagnostic groups and discharge diagnostic groups of patients in the Clinical Center Kragujevac in the period from January 1, 2006 to December 31, 2013 on the basis of the hospitalization report. Methods: From the basic set of reports, 5% of random samples were singled out and they contained 20,422 reports. Out of the given number of reports, 18,173 hospitalization reports were complete and then further analyzed in the paper. Admission diagnostic groups given by the primary care doctor were compared with discharge diagnostic groups filled out by the practicing physician in the hospital ward from which a patient was discharged. The agreement of these two diagnostic groups was an indication of the high-quality performance of the primary care doctor. Agreement analysis was conducted using Cohen's Kappa statistics. Restuls: Agreement analysis showed that the values of the Kappa coefficient for the five leading admission diagnostic groups were in the range of kappa = 0.61 to kappa = 0.94. The values of the Kappa coefficient for the five most common discharge diagnostic groups were in the range of kappa = 0.55 to kappa = 0.81. Conclusion: Hospitalization report is a reliable individual report on inpatient care, so it could be used in determining the degree of agreement between admission diagnostic groups and discharge diagnostic groups. PMID- 29341570 TI - Histomorphometric evaluation of bone regeneration using autogenous bone and beta tricalcium phosphate in diabetic rabbits. AB - Background/Aim: The mechanism of impaired bone healing in diabetes mellitus includes different tissue and cellular level activities due to micro- and macrovascular changes. As a chronic metabolic disease with vascular complications, diabetes affects a process of bone regeneration as well. The therapeutic approach in bone regeneration is based on the use of osteoinductive autogenous grafts as well as osteoconductive synthetic material, like a beta tricalcium phosphate. The aim of the study was to determine the quality and quantity of new bone formation after the use of autogenous bone and beta tricalcium phosphate in the model of calvarial critical-sized defect in rabbits with induced diabetes mellitus type I. Methods: The study included eight 4-month old Chincilla rabbits with alloxan-induced diabetes mellitus type I. In all animals, there were surgically created two calvarial bilateral defects (diameter 12 mm), which were grafted with autogenous bone and beta-tricalcium phosphate (n = 4) or served as unfilled controls (n = 4). After 4 weeks of healing, animals were sacrificed and calvarial bone blocks were taken for histologic and histomorphometric analysis. Beside descriptive histologic evaluation, the percentage of new bone formation, connective tissue and residual graft were calculated. All parameters were statistically evaluated by Friedman Test and post hock Wilcoxon Singed Ranks Test with a significance of p < 0.05. Results: Histology revealed active new bone formation peripherally with centrally located connective tissue, newly formed woven bone and well incorporated residual grafts in all treated defects. Control samples showed no bone bridging of defects. There was a significantly more new bone in autogeonous graft (53%) compared with beta tricalcium phosphate (30%), (p < 0.030) and control (7%), (p < 0.000) groups. A significant difference was also recorded between beta-tricalcium phosphate and control groups (p < 0.008). Conclusion: In the present study on the rabbit grafting model with induced diabetes mellitus type I, the effective bone regeneration of critical bone defects was obtained using autogenous bone graft. [Projekat Ministarstva nauke Republike Srbije, br. 175021]. PMID- 29341571 TI - Diagnostic accuracy of the A-test and cutoff points for assessing outcomes and planning acute and post-acute rehabilitation of patients surgically treated for hip fractures and osteoarthritis. AB - Background/Aim: The A-test is used in daily clinical practice for monitoring functional recovery of orthopedic patients during early rehabilitation. The aim of this study was to determine the accuracy of A-test and cutoff point at which the test can separate patients with and without functional disability at the end of early rehabilitation. Also, it was important to determine whether A-test has that discriminative ability (and at which cutoff points) in the first days of early rehabilitation in order to have time to plan post acute rehabilitation. Methods: This measurement-focused study was conducted in the Orthopedic Ward during early inpatient rehabilitation (1st-5th day after the operation) of 60 patients with hip osteoarthritis (HO) that underwent arthroplasty and 60 surgically treated patients with hip fracture (HF). For measurements we used the A-test and the University of Iowa Level of Assistance Scale (ILAS) as the gold standard. For statistical analysis we used the receiver operating characteristic (ROC) curve and the area under the curve (AUC) with 95% confidence interval for the results of A-test from the first to the fifth day of rehabilitation, sensitivity, specificity, the rate of false positive and false negative errors, positive and negative predictive value, ratio of positive and negative likelihood ratio, accuracy, point to the ROC curve closest to 0.1 and Youden index for all the cutoff points. Results: The AUC was 0.825 (0.744-0.905) for the first day of rehabilitation, 0.922 (0.872-0.972) for the second day of rehabilitation, 0.980 (0.959-1.000) for the third day of rehabilitation, 0.989 (0.973-1.004) for the fourth day, and 0.999 (0.996-1.001) for the fifth day of rehabilitation. The optimal cutoff for the results of A-test was: 7/8 for the first day, 29/30 for the fourth day, and 34/35 for the fifth day of rehabilitation. On the second and the third day A-test had two cutoff points, the lower point safely separated the patients with functional disability, while the upper point ruled out functional disability. On the 2nd rehabilitation day the cutoff points were 12/13 and 17/18, on the 3rd rehabilitation day cutoff points were 13/14 and 18/19. Conclusion: The A-test has all characteristics of an accurate tool which can be used for separating patients with and without functional disability at all stages of early rehabilitation after surgically treated hip disease or fracture. Based on the results of A-test within the first days of early rehabilitation, it is possible to make a plan for postacute rehabilitation. PMID- 29341572 TI - Risk factors for cardiovascular disease in children on chronic hemodialysis: Traditional (general) risk factors, Part I. PMID- 29341573 TI - Classification and the diagnostics of abnormal uterine bleeding in nongravid women of reproductive age: The PALM-COEIN classification system adopted by the International Federation of Gynecology and Obstetrics. PMID- 29341574 TI - Bullous lung diseases as a risk factor for lung cancer: A case report. AB - Introduction: A possible association between lung cancer and bullous lung disease has been suggested and recently supported by the results of genetic studies. Case report: A previously healthy 43-year-old man, smoker, was diagnosed with bullous lung disease at the age of 31 years. He was followed up for 12 years when lung cancer (adenocarcinoma) was found at the site. In the meantime, he was treated for recurrent respiratory infections. Conclusion: There is the need for active approach in following up the patients with pulmonary bulla for potential development of lung cancer. PMID- 29341575 TI - Severe vaso-occlusive retinopathy associated with systemic lupus erythematosus. AB - Introduction: Systemic lupus erythematosus (SLE) is a systemic idiopathic autoimmune inflammatory disease, with multiple organ involvement. Severe vaso occlusive retinopathy is a rare, sight threatening lupus-related manifestation of the disease, which is more common in patients with coexisting antiphospholipid syndrome. Case report: We reported a 36-year-old female with severe vaso occlusive retinopathy that manifested in the absence of antiphospholipid syndrome. In a 4-year follow-up, despite aggressive systemic corticosteroid and immunosuppressive therapy and panretinal laserphotocoagulation treatment, the disease progressed to retinal neovascularisation, neovascular vitreoretinopathy, neovascular glaucoma and, consecutively, severe visual loss. As the final option for preservation of visual function, pars plana vitrectomy with laserphotocoagulation was performed and had good results. Progression of ophthalmological findings indicated the progression of the systemic disease, as well as neurolupus. Conclusion: Severe vaso-occlusive retinopathy occurred as the ophthalmological manifestation of SLE in the absence of antiphospholipid syndrome, but correlated with neurolupus and led to visual deterioration despite the treatment. PMID- 29341576 TI - Pseudomesotheliomatous carcinoma of the lung. AB - Introduction: Pseudomesotheliomatous lung carcinoma is a special, rare entity characterized by large pleural growth and minor invasion of lung tissue. Clinically, radiologically, macroscopically and even histologically this tumor can be misdiagnosed as malignant pleural carcinoma. Case report: We represent a 64-year-old male patient, former smoker. Due to difficulties in the form of dry cough, feeling of dis-comfort and pain in the right hemithorax, fatigue, heavy breathing, sweating, fever up to 39.6 degrees C the patient was treated as with combined antibiotic therapy (macrolides, cephalosporins and penicillin), but without improving of his condition. Chest radiography showed a shadow of pleural effusion by the height of the front end of the third right rib. Chest MSCT showed the extremely thickened pleura apically and to the posterior along the upper right lobe in addition to existence of massive pleural effusion. Subpleural condensation of parenchyma ranging about 30 mm was described in the upper right lobe. Cytological analysis of the pleural effusion showed the presence of malignant cells impossible to differentiate whether they were metastasis of adenocarcinoma or malignant pleural mesothelioma. By histochemical and immunohistohemical analyses of a pleural sample, pseudomesotheliomataus lung adenocarcinoma was diagnosed. Conclusion: Pseudomesotheliomataus carcinoma of the lungs can be a diagnostic problem. Its diagnosis is based on recognition of histopathological characteristics which enable its discernment from the epithelial variant of malignant pleural mesothelioma. PMID- 29341577 TI - Apical root-end filling with tricalcium silicate-based cement in a patient with diabetes mellitus: A case report. AB - Introduction: The material used for root-end filling has to be biocompatible with adjacent periapical tissue and to stimulate its regenerative processes. Tricalcium silicate cement (TSC), as a new dental material, shows good sealing properties with dentin, high compression strengths and better marginal adaptation than commonly used root-end filling materials. Although optimal postoperative healing of periapical tissues is mainly influenced by characteristics of end-root material used, it could sometimes be affected by the influence of systemic diseases, such as diabetes mellitus (DM). Case report: We presented apical healing of the upper central incisor, retrofilled with TSC, in a diabetic patient (type 2 DM) with peripheral neuropathy. Standard root-end resection of upper central incisor was accompanied by retropreparation using ultrasonic retrotips to the depth of 3 mm and retrofilling with TSC. Post-operatively, the surgical wound healed uneventfully. However, the patient reported undefined dull pain in the operated area that could possibly be attributed to undiagnosed intraoral diabetic peripheral neuropathy, what was evaluated clinically. Conclusion: Although TSC presents a suitable material for apical root-end filling in the treatment of chronic periradicular lesions a possible presence of systemic diseases, like type 2 DM, has to be considered in the treatment outcome estimation. PMID- 29341578 TI - Case report of gross hematuria in the nutcracker syndrome resolved by renocaval reimplantation. AB - Introduction: Nutcracker syndrome is defined as a set of signs and symptoms secondary to compression of the left renal vein (LRV) in the acute anatomic angle between the aorta and its superior mesenteric branch. Case report: A 38-year old woman with asymptomatic and "idiopathic" gross hematuria came to the Clinic for Vascular and Endovascular Surgery, Clinical Center of Serbia in Belgrade. Hematuria was documented by cystoscopy and was found to be unilateral, located to the left urethral orifice. The contrast-enhanced multidetector computed tomography (MDCT) scan showed a stenotic LRV due to the extrinsic compression in the angle formed by the ventral aorta and superior mesenteric artery (MSA), with a jet of contrast through the lumen. Considering the negative investigations for more common causes of hematuria, its incapacitating nature, and above mentioned imaging findings suggestive of the nutcracker syndrome, an indication for the open surgical correction of the LRV entrapment was established. The patient underwent reimplantation of the LRV into the more distal inferior vena cava (IVC), to relocate it out of the constrictive aortomesenteric space. Intraoperative findings were notable for blood flow turbulence in the LRV and hypertrophy of its tributaries, which were ligated. We presented the first published case in the Serbian literature on nutcracker syndrome with hematuria resolved by renocaval reimplantation. Conclusion: This case report demonstrates that renocaval reimplantation, as the open surgery technique, could be the adequate method for resolving gross hematuria in patients with nutcracker syndrome. PMID- 29341579 TI - Nanoparticulate Contrast Agents for Multimodality Molecular Imaging. AB - Molecular imaging is rapidly developing as a powerful tool in research and medical diagnostic. By integrating complementary signal reporters into a single nanoparticulate contrast agent, multimodal molecular imaging can be performed as scalable images with high sensitivity, resolution and specificity. In this review, multifunctional nanoparticles (MFNPs) are classified into four types: conjugation, encapsulation, core/shell, and co-doping. Further, new constructs of MFNPs were reported recently which have used nanoparticulate contrast agent such as quantum dots (QDs), iron oxide nanoparticles (IONPs), Upconversion nanoparticles (UCNPs), carbon based nanoparticles, gold nanoparticles (Au-NPs), Metal-Organic Frameworks (MOFs), dendrimers and porphyrins based nanoparticles. Different surface modification strategies were also developed as well as ligands are attached to those NPs to render the biocompatibility and enable specific targeting. These new development in MFNPs are expected to introduce a paradigm shift in multi-modal molecular imaging and thereby opening up an era of personalized medicine and new diagnostic medical imaging tools. PMID- 29341580 TI - Hippocrates-The father of modern medicine. PMID- 29341581 TI - Functional Chitosan Nanoparticles in Cancer Treatment. AB - With exponential growth in nanotechnology and material chemistry, the application of a variety of nanomaterials in biomedical field has attracted increasing interest, especially in cancer diagnosis and treatment. Nanoparticles have greatly revolutionized the therapy pattern of cancer owing to their specific targeting ability, prolonged circulation time, enhanced therapeutic efficacy, and decreased systemic side effects. Chitosan, a modified natural polysaccharide with excellent biocompatibility, has been intensively studied for use as carriers to deliver various drugs and genes in cancer treatment. This review provides an insight into the advances in chitosan-based nanoparticles with a focus on its therapeutic potential in cancer treatment. PMID- 29341582 TI - In-Plane Channel-Structured Catalyst Layer for Polymer Electrolyte Membrane Fuel Cells. AB - In this study, we present a novel catalyst layer (CL) with in-plane flow channels to enhance the mass transports in polymer electrolyte membrane fuel cells. The CL with in-plane channels on its surface is fabricated by coating a CL slurry onto a surface-treated substrate with the inverse line pattern and transferring the dried CL from the substrate to a membrane. The membrane electrode assembly with the in-plane channel-patterned CL has superior power performances in high current densities compared with an unpatterned, flat CL, demonstrating a significant enhancement of the mass-transport property by the in-plane channels carved in the CL. The performance gain is more pronounced when the channel direction is perpendicular to the flow field direction, indicating that the in-plane channels increase the utilization of the CL under the rib area. An oxygen-transport resistance analysis shows that both molecular and Knudsen diffusion can be facilitated with the introduction of the in-plane channels. The direct CL patterning technique provides a platform for the fabrication of advanced CL structures with a high structural fidelity and design flexibility and a rational guideline for designing high-performance CLs. PMID- 29341583 TI - Tumor Catalytic-Photothermal Therapy with Yolk-Shell Gold@Carbon Nanozymes. AB - Nanozymes, as a new generation of artificial enzymes, offer great opportunities in biomedical engineering and disease treatment. Synergizing the multiple intrinsic functions of nanozymes can improve their performance in biological systems. Here, we report a novel nanozyme with yolk-shell structure fabricated by combining a single gold nanoparticle core with a porous hollow carbon shell nanospheres (Au@HCNs). Au@HCNs exhibited enzyme-like activities similar to horseradish peroxidase and oxidase under an acidic environment, showing the ability of ROS generation. More importantly, the ROS production of Au@HCNs was significantly improved upon 808 nm light irradiation by the photothermal effect, which is often used for tumor therapy. Cellular and animal studies further demonstrated that the efficient tumor destruction was achieved through the combination of light-enhanced ROS and photothermal therapy. These results implied that the intrinsic enzyme-like activity and photothermal conversion of nanozymes can be synergized for efficient tumor treatment, providing a proof-of-concept of tumor catalytic-photothermal therapy based on nanozymes. PMID- 29341584 TI - Preparation of a Smart and Portable Film for in Situ Sensing of Iron Microcorrosion. AB - Corrosion of iron-containing materials, which presents serious economic and safety problems, normally begins with microcorrosion, which refers to the early stages of corrosion before visible changes appear on the surface. If microcorrosion could be detected and repaired immediately, corrosion damage could be greatly reduced. Current technology and materials, however, are not able to detect microcorrosion of iron in a cheap and convenient manner. Here, we have used a natural product, ellagic acid (EA), to fabricate an EA-functionalized poly(vinyl alcohol) (PVA) film (EAF) for in situ sensing of the initial stage of microcorrosion. EAF was able to effectively sense iron microcorrosion via an obvious color change. The film also had good long-term stability and mechanical strength. Since EAF can be easily prepared from inexpensive and green raw materials, the film opens up a new opportunity for the detection of iron microcorrosion. PMID- 29341585 TI - Self-Powered Microfluidic Transport System Based on Triboelectric Nanogenerator and Electrowetting Technique. AB - Electrowetting technique is an actuation method for manipulating position and velocity of fluids in the microchannels. By combining electrowetting technique and a freestanding mode triboelectric nanogenerator (TENG), we have designed a self-powered microfluidic transport system. In this system, a mini vehicle is fabricated by using four droplets to carry a pallet (6 mm * 8 mm), and it can transport some tiny object on the track electrodes under the drive of TENG. The motion of TENG can provide both driving power and control signal for the mini vehicle. The maximum load for this mini vehicle is 500 mg, and its highest controllable velocity can reach 1 m/s. Freestanding TENG has shown excellent capability to manipulate microfluid. Under the drive of TENG, the minimum volume of the droplet can reach 70-80 nL, while the tiny droplet can freely move on both horizontal and vertical planes. Finally, another strategy for delivering nanoparticles to the designated position has also been demonstrated. This proposed self-powered transport technique may have great applications in the field of microsolid/liquid manipulators, drug delivery systems, microrobotics, and human-machine interactions. PMID- 29341586 TI - Development of a Cytopathic Effect-Based Phenotypic Screening Assay against Cryptosporidium. AB - Cryptosporidiosis is a diarrheal disease predominantly caused by Cryptosporidium parvum ( Cp) and Cryptosporidium hominis ( Ch), apicomplexan parasites which infect the intestinal epithelial cells of their human hosts. The only approved drug for cryptosporidiosis is nitazoxanide, which shows limited efficacy in immunocompromised children, the most vulnerable patient population. Thus, new therapeutics and in vitro infection models are urgently needed to address the current unmet medical need. Toward this aim, we have developed novel cytopathic effect (CPE)-based Cp and Ch assays in human colonic tumor (HCT-8) cells and compared them to traditional imaging formats. Further model validation was achieved through screening a collection of FDA-approved drugs and confirming many previously known anti- Cryptosporidium hits as well as identifying a few novel candidates. Collectively, our data reveals this model to be a simple, functional, and homogeneous gain of signal format amenable to high throughput screening, opening new avenues for the discovery of novel anticryptosporidials. PMID- 29341587 TI - Fucoidan Prolongs the Circulation Time of Dextran-Coated Iron Oxide Nanoparticles. AB - The magnetic properties and safety of dextran-coated superparamagnetic iron oxide nanoparticles (SPIONs) have facilitated their clinical use as MRI contrast agents and stimulated research on applications for SPIONs in particle imaging and magnetic hyperthermia. The wider clinical potential of SPIONs, however, has been limited by their rapid removal from circulation via the reticuloendothelial system (RES). We explored the possibility of extending SPION circulatory time using fucoidan, a seaweed-derived food supplement, to inhibit RES uptake. The effects of fucoidan on SPION biodistribution were evaluated using ferucarbotran, which in its pharmaceutical formulation (Resovist) targets the RES. Ferucarbotran was radiolabeled at the iron oxide core with technetium-99m (99mTc; t1/2 = 6 h) or zirconium-89 (89Zr; t1/2 = 3.3 days). Results obtained with 99mTc ferucarbotran demonstrated that administration of fucoidan led to a 4-fold increase in the circulatory half-life (t1/2 slow) from 37.4 to 150 min (n = 4; P < 0.0001). To investigate whether a longer circulatory half-life could lead to concomitant increased tumor uptake, the effects of fucoidan were tested with 89Zr ferucarbotran in mice bearing syngeneic subcutaneous (GL261) tumors. In this model, the longer circulatory half-life achieved with fucoidan was associated with a doubling in tumor SPION uptake (n = 5; P < 0.001). Fucoidan was also effective in significantly increasing the circulatory half-life of perimag-COOH, a commercially available SPION with a larger hydrodynamic size (130 nm) than ferucarbotran (65 nm). These findings indicate successful diversion of SPIONs away from the hepatic RES and show realistic potential for future clinical applications. PMID- 29341588 TI - Human Neuraminidase Isoenzymes Show Variable Activities for 9- O-Acetyl-sialoside Substrates. AB - Recognition of terminal sialic acids is central to many cellular processes, and structural modification of sialic acid can disrupt these interactions. A prominent, naturally occurring, modification of sialic acid is 9- O-acetylation (9- O-Ac). Study of this modification through generation and analysis of 9- O-Ac sialosides is challenging because of the lability of the acetate group. Fundamental questions regarding the role of 9- O-Ac sialic acids remain unanswered, including what effect it may have on recognition and hydrolysis by the human neuraminidase enzymes (hNEU). To investigate the substrate activity of 9- O-acetylated sialic acids (Neu5,9Ac2), we synthesized an acetylated fluorogenic hNEU substrate 2'-(4-methylumbelliferyl)-9- O-acetyl-alpha-d- N acetylneuraminic acid. Additionally, we generated a panel of octyl sialyllactosides containing modified sialic acids including variation in linkage, 9- O-acetylation, and C-5 group (Neu5Gc). Relative rates of substrate cleavage by hNEU were determined using fluorescence spectroscopy and electrospray ionization mass spectrometry. We report that 9- O-acetylation had a significant, and differential, impact on sialic acid hydrolysis by hNEU with general substrate tolerance following the trend of Neu5Ac > Neu5Gc ? Neu5,9Ac2 for NEU2, NEU3, and NEU4. Both NEU2 and NEU3 had remarkably reduced activity for Neu5,9Ac2 containing substrates. Other isoenzymes appeared to be more tolerant, with NEU4 even showing increased activity on Neu5,9Ac2 substrates with an aryl aglycone. The impact of these minor structural changes to sialic acid on hNEU activity was unexpected, and these results provide evidence of the substantial influence of 9- O-Ac modifications on hNEU enzyme substrate specificity. Furthermore, these findings may implicate hNEU in processes governed by 9- O-acetyltransferases and esterases. PMID- 29341589 TI - Metal-Organic Frameworks-Derived Hierarchical Co3O4 Structures as Efficient Sensing Materials for Acetone Detection. AB - Highly sensitive and stable gas sensors have attracted much attention because they are the key to innovations in the fields of environment, health, energy savings and security, etc. Sensing materials, which influence the practical sensing performance, are the crucial parts for gas sensors. Metal-organic frameworks (MOFs) are considered as alluring sensing materials for gas sensors because of the possession of high specific surface area, unique morphology, abundant metal sites, and functional linkers. Herein, four kinds of porous hierarchical Co3O4 structures have been selectively controlled by optimizing the thermal decomposition (temperature, rate, and atmosphere) using ZIF-67 as precursor that was obtained from coprecipitation method with the co-assistance of cobalt salt and 2-methylimidazole in the solution of methanol. These hierarchical Co3O4 structures, with controllable cross-linked channels, meso-/micropores, and adjustable surface area, are efficient catalytic materials for gas sensing. Benefits from structural advantages, core-shell, and porous core-shell Co3O4 exhibit enhanced sensing performance compared to those of porous popcorn and nanoparticle Co3O4 to acetone gas. These novel MOF-templated Co3O4 hierarchical structures are so fantastic that they can be expected to be efficient sensing materials for development of low-temperature operating gas sensors. PMID- 29341590 TI - Correction to Fourier Transform Infrared Studies on the Dissociation Behavior of Metal-Chelating Polyelectrolyte Brushes. PMID- 29341591 TI - The Development of Benzimidazole-Based Clickable Probes for the Efficient Labeling of Cellular Protein Arginine Deiminases (PADs). AB - Citrullination is the post-translational hydrolysis of peptidyl-arginines to form peptidyl-citrulline, a reaction that is catalyzed by the protein arginine deiminases (PADs), a family of calcium-regulated enzymes. Aberrantly increased protein citrullination is associated with a slew of autoimmune diseases (e.g., rheumatoid arthritis (RA), multiple sclerosis, lupus, and ulcerative colitis) and certain cancers. Given the clear link between increased PAD activity and human disease, the PADs are therapeutically relevant targets. Herein, we report the development of next generation cell permeable and "clickable" probes (BB-Cl-Yne and BB-F-Yne) for covalent labeling of the PADs both in vitro and in cell-based systems. Using advanced chemoproteomic technologies, we also report the off targets of both BB-Cl-Yne and BB-F-Yne. The probes are highly specific for the PADs, with relatively few off targets, especially BB-F-Yne, suggesting the preferential use of the fluoroacetamidine warhead in next generation irreversible PAD inhibitors. Notably, these compounds can be used in a variety of modalities, including the identification of off targets of the parent compounds and as activity-based protein profiling probes in target engagement assays to demonstrate the efficacy of PAD inhibitors. PMID- 29341592 TI - Application of Decafluorobiphenyl (DFBP) Moiety as a Linker in Bioconjugation. AB - Considerable attention has been devoted to fluorinated compounds due to their unique and interesting properties. Many modern pharmaceuticals contain fluorinated substituents, which are commonly synthesized using selective fluorinating reagents. Decafluorobiphenyl (DFBP) as a fluorinated linker is susceptible to nucleophilic attack. This nucleophilic reaction has been widely studied using various nucleophiles. Sulfur and nitrogen containing nucleophiles have been of particular interest, especially in bioconjugated reactions. This review focuses on the SNAr reactivity of DFBP in formation of C-X (X = S, N) bonds, to be applied in bioconjugation in organic chemistry. The review aims to highlight the crucial factors that govern the chemistry behind the activation of F-CAr-CAr-F bonds as a linker in the synthesis of novel peptides, proteins, and biologics. PMID- 29341593 TI - Analysis of Cellular Tyrosine Phosphorylation via Chemical Rescue of Conditionally Active Abl Kinase. AB - Identifying direct substrates targeted by protein kinases is important in understanding cellular physiology and intracellular signal transduction. Mass spectrometry-based quantitative proteomics provides a powerful tool for comprehensively characterizing the downstream substrates of protein kinases. This approach is efficiently applied to receptor kinases that can be precisely, directly, and rapidly activated by some agent, such as a growth factor. However, nonreceptor tyrosine kinase Abl lacks the experimental advantage of extracellular growth factors as immediate and direct stimuli. To circumvent this limitation, we combine a chemical rescue approach with quantitative phosphoproteomics to identify targets of Abl and their phosphorylation sites with enhanced temporal resolution. Both known and novel putative substrates are identified, presenting opportunities for studying unanticipated functions of Abl under physiological and pathological conditions. PMID- 29341595 TI - Self-Healing Hydrogels of Low Molecular Weight Poly(vinyl alcohol) Assembled by Host-Guest Recognition. AB - Poly(vinyl alcohol) (PVA) is a cytocompatible synthetic polymer and has been commonly used to prepare hydrogels. Bile acids and beta-cyclodextrin are both natural compounds and they form stable host-guest inclusion complexes. They are attached covalently onto a low molecular weight PVA separately. Self-healing hydrogels can be easily formed by mixing the aqueous solutions of these PVA based polymers. The mechanical properties of the hydrogels can be tuned by varying the molar fractions of bile acid units on PVA. The dynamic inclusion complexation of the host-guest pair of the hydrogel allows the self-healing rapidly under ambient atmosphere and their mechanical properties could recover their original values in 1 min after incision. These PVA based polymers exhibited the good cytocompatibility and high hemocompatibility as shown by their biological evaluations. The use of natural compounds for host-guest interaction make such gels especially convenient to use as biomaterials, an advantage over conventional hydrogels prepared through freeze-thaw method. PMID- 29341596 TI - Core-Shell ZIF-8@ZIF-67-Derived CoP Nanoparticle-Embedded N-Doped Carbon Nanotube Hollow Polyhedron for Efficient Overall Water Splitting. AB - The construction of highly active and stable non-noble-metal electrocatalysts for hydrogen and oxygen evolution reactions is a major challenge for overall water splitting. Herein, we report a novel hybrid nanostructure with CoP nanoparticles (NPs) embedded in a N-doped carbon nanotube hollow polyhedron (NCNHP) through a pyrolysis-oxidation-phosphidation strategy derived from core-shell ZIF-8@ZIF-67. Benefiting from the synergistic effects between highly active CoP NPs and NCNHP, the CoP/NCNHP hybrid exhibited outstanding bifunctional electrocatalytic performances. When the CoP/NCNHP was employed as both the anode and cathode for overall water splitting, a potential as low as 1.64 V was needed to achieve the current density of 10 mA.cm-2, and it still exhibited superior activity after continuously working for 36 h with nearly negligible decay in potential. Density functional theory calculations indicated that the electron transfer from NCNHP to CoP could increase the electronic states of the Co d-orbital around the Fermi level, which could increase the binding strength with H and therefore improve the electrocatalytic performance. The strong stability is attributed to high oxidation resistance of the CoP surface protected by the NCNHP. PMID- 29341594 TI - Designing Flavoprotein-GFP Fusion Probes for Analyte-Specific Ratiometric Fluorescence Imaging. AB - The development of genetically encoded fluorescent probes for analyte-specific imaging has revolutionized our understanding of intracellular processes. Current classes of intracellular probes depend on the selection of binding domains that either undergo conformational changes on analyte binding or can be linked to thiol redox chemistry. Here we have designed novel probes by fusing a flavoenzyme, whose fluorescence is quenched on reduction by the analyte of interest, with a GFP domain to allow for rapid and specific ratiometric sensing. Two flavoproteins, Escherichia coli thioredoxin reductase and Saccharomyces cerevisiae lipoamide dehydrogenase, were successfully developed into thioredoxin and NAD+/NADH specific probes, respectively, and their performance was evaluated in vitro and in vivo. A flow cell format, which allowed dynamic measurements, was utilized in both bacterial and mammalian systems. In E. coli the first reported intracellular steady-state of the cytoplasmic thioredoxin pool was measured. In HEK293T mammalian cells, the steady-state cytosolic ratio of NAD+/NADH induced by glucose was determined. These genetically encoded fluorescent constructs represent a modular approach to intracellular probe design that should extend the range of metabolites that can be quantitated in live cells. PMID- 29341597 TI - The WYL Domain of the PIF1 Helicase from the Thermophilic Bacterium Thermotoga elfii is an Accessory Single-Stranded DNA Binding Module. AB - PIF1 family helicases are conserved from bacteria to man. With the exception of the well-studied yeast PIF1 helicases (e.g., ScPif1 and ScRrm3), however, very little is known about how these enzymes help maintain genome stability. Indeed, we lack a basic understanding of the protein domains found N- and C-terminal to the characteristic central PIF1 helicase domain in these proteins. Here, using chimeric constructs, we show that the ScPif1 and ScRrm3 helicase domains are interchangeable and that the N-terminus of ScRrm3 is important for its function in vivo. This suggests that PIF1 family helicases evolved functional modules fused to a generic motor domain. To investigate this hypothesis, we characterized the biochemical activities of the PIF1 helicase from the thermophilic bacterium Thermotoga elfii (TePif1), which contains a C-terminal WYL domain of unknown function. Like helicases from other thermophiles, recombinant TePif1 was easily prepared, thermostable in vitro, and displayed activities similar to its eukaryotic homologues. We also found that the WYL domain was necessary for high affinity single-stranded DNA (ssDNA) binding and affected both ATPase and helicase activities. Deleting the WYL domain from TePif1 or mutating conserved residues in the predicted ssDNA binding site uncoupled ATPase activity and DNA unwinding, leading to higher rates of ATP hydrolysis but less efficient DNA helicase activity. Our findings suggest that the domains of unknown function found in eukaryotic PIF1 helicases may also confer functional specificity and additional activities to these enzymes, which should be investigated in future work. PMID- 29341598 TI - A Joint Strategy To Evaluate the Microscopic Origin of the Second-Harmonic Generation Response in Nonpolar ABCO3F Compounds. AB - In this paper, a joint strategy was proposed to investigate the microscopic origin of the second-harmonic-generation (SHG) response in nonpolar ABCO3F compounds. The SHG coefficients of ABCO3F were evaluated using finite-field and sum-over-states methods. The tendency of the obtained SHG tensors is in good agreement with the powder SHG response. The atomic contribution was investigated using variation of the atomic charges and bandwidth of occupied atomic states. The results show that oxygen states play a key role in determining the SHG response, and the neighboring divalent cations exert a indirect influence via covalent interaction. The bidentate bonding pattern is beneficial to obtaining a largely enhanced SHG response. PMID- 29341599 TI - Ni-Catalyzed Carbon-Carbon Bond-Forming Reductive Amination. AB - This report describes a three-component, Ni-catalyzed reductive coupling that enables the convergent synthesis of tertiary benzhydryl amines, which are challenging to access by traditional reductive amination methodologies. The reaction makes use of iminium ions generated in situ from the condensation of secondary N-trimethylsilyl amines with benzaldehydes, and these species undergo reaction with several distinct classes of organic electrophiles. The synthetic value of this process is demonstrated by a single-step synthesis of antimigraine drug flunarizine (Sibelium) and high yielding derivatization of paroxetine (Paxil) and metoprolol (Lopressor). Mechanistic investigations support a sequential oxidative addition mechanism rather than a pathway proceeding via alpha-amino radical formation. Accordingly, application of catalytic conditions to an intramolecular reductive coupling is demonstrated for the synthesis of endo and exocyclic benzhydryl amines. PMID- 29341600 TI - Combination of Heparin Binding Peptide and Heparin Cell Surface Coatings for Mesenchymal Stem Cell Spheroid Assembly. AB - Microtissues containing multiple cell types have been used in both in vitro models and in vivo tissue repair applications. However, to improve throughput, there is a need to develop a platform that supports self-assembly of a large number of 3D microtissues containing multiple cell types in a dynamic suspension system. Thus, the objective of this study was to exploit the binding interaction between the negatively charged glycosaminoglycan, heparin, and a known heparin binding peptide to establish a method that promotes assembly of mesenchymal stem cell (MSC) spheroids into larger aggregates. We characterized heparin binding peptide (HEPpep) and heparin coatings on cell surfaces and determined the specificity of these coatings in promoting assembly of MSC spheroids in dynamic culture. Overall, combining spheroids with both coatings promoted up to 70 +/- 11% of spheroids to assemble into multiaggregate structures, as compared to only 10 +/- 4% assembly when cells having the heparin coating were cultured with cells coated with a scrambled peptide. These results suggest that this self-assembly method represents an exciting approach that may be applicable for a wide range of applications in which cell aggregation is desired. PMID- 29341601 TI - Determining Double Bond Position in Lipids Using Online Ozonolysis Coupled to Liquid Chromatography and Ion Mobility-Mass Spectrometry. AB - The increasing focus on lipid metabolism has revealed a need for analytical techniques capable of structurally characterizing lipids with a high degree of specificity. Lipids can exist as any one of a large number of double bond positional isomers, which are indistinguishable by single-stage mass spectrometry alone. Ozonolysis reactions coupled to mass spectrometry have previously been demonstrated as a means for localizing double bonds in unsaturated lipids. Here we describe an online, solution-phase reactor using ozone produced via a low pressure mercury lamp, which generates aldehyde products diagnostic of cleavage at a particular double bond position. This flow-cell device is utilized in conjunction with structurally selective ion mobility-mass spectrometry. The lamp mediated reaction was found to be effective for multiple lipid species in both positive and negative ionization modes, and the conversion efficiency from precursor to product ions was tunable across a wide range (20-95%) by varying the flow rate through the ozonolysis device. Ion mobility separation of the ozonolysis products generated additional structural information and revealed the presence of saturated species in a complex mixture. The method presented here is simple, robust, and readily coupled to existing instrument platforms with minimal modifications necessary. For these reasons, application to standard lipidomic workflows is possible and aids in more comprehensive structural characterization of a myriad of lipid species. PMID- 29341602 TI - Polybrominated Diphenyl Ethers, Polychlorinated Biphenyls, and 2,2-Bis(4 chlorophenyl)-1,1-dichloroethene in 7- and 9-Year-Old Children and Their Mothers in the Center for the Health Assessment of Mothers and Children of Salinas Cohort. AB - We report longitudinal serum concentrations of select persistent organic pollutants (POPs) in children at ages 7 and 9 years and in their mothers prenatally and again when the children were 9 years old. The participating families were enrolled in the Center for the Health Assessment of Mothers and Children of Salinas (CHAMACOS), a longitudinal birth cohort study of low-income Hispanic families residing in the Salinas Valley, California. We observed decreasing concentrations in the mothers with year of serum collection (2009 vs 2011) for six out of seven polybrominated diphenyl ether (PBDE) congeners and for 2,2',4,4',5-pentachlorobiphenyl (CB-99; p < 0.05). The 9-year-old children had similarly decreasing serum concentrations of all seven PBDE congeners, CB-99, and 2,2',3,4,4',5'- and 2,3,3',4,4',6-hexachlorobiphenyl (CB-138/158) with year of serum collection (2009 vs 2011; p < 0.05). In mixed effect models accounting for weight gain as the children aged from 7 to 9 years, we observed an annual decrease (-8.3% to -13.4%) in tri- to hexaBDE concentrations (p < 0.001), except for 2,2',3,4,4'-tetrabromodiphenyl ether (BDE-85) and 2,2',4,4',5,5' hexabromodiphenyl ether (BDE-153). The concentrations of these congeners were not associated with time of serum collection and instead showed an -0.9% to -2.6% decrease per kilogram of weight gain during the study period (p < 0.05). In the case of tetra- to heptachlorobiphenyls, we observed -0.5% to -0.7% decrease in serum concentration per kilogram of weight gain (p < 0.05) and -3.0% to -3.7% decrease in serum concentration per year of aging (p < 0.05), except for 2,3',4,4',5-pentachlorobiphenyl (CB-118) and 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153), which were not associated with time of serum draw. 2,2-Bis(4 chlorophenyl)-1,1-dichloroethene (p,p'-DDE) decreased -2.4%/kg of weight gain between the two sampling points (p < 0.001). These findings suggest that as children grow, dilution in a larger body size plays an important role in explaining reductions in body burden in the case of traditional POPs such as PCBs and p,p'-DDE. By contrast, in the case of PBDEs, reductions are likely explained by reduction in exposure, as illustrated by decreased concentrations in more recent years, possibly amplified by presumed shorter biological half-life than other POPs. PMID- 29341603 TI - PokMT1 from the Polyketomycin Biosynthetic Machinery of Streptomyces diastatochromogenes Tu6028 Belongs to the Emerging Family of C-Methyltransferases That Act on CoA-Activated Aromatic Substrates. AB - Recent biochemical characterizations of the MdpB2 CoA ligase and MdpB1 C methyltransferase (C-MT) from the maduropeptin (MDP, 2) biosynthetic machinery revealed unusual pathway logic involving C-methylation occurring on a CoA activated aromatic substrate. Here we confirmed this pathway logic for the biosynthesis of polyketomycin (POK, 3). Biochemical characterization unambiguously established that PokM3 and PokMT1 catalyze the sequential conversion of 6-methylsalicylic acid (6-MSA, 4) to form 3,6-dimethylsalicylyl-CoA (3,6-DMSA-CoA, 6), which serves as the direct precursor for the 3,6 dimethylsalicylic acid (3,6-DMSA) moiety in the biosynthesis of 3. PokMT1 catalyzes the C-methylation of 6-methylsalicylyl-CoA (6-MSA-CoA, 5) with a kcat of 1.9 min-1 and a Km of 2.2 +/- 0.1 MUM, representing the most proficient C-MT characterized to date. Bioinformatics analysis of MTs from natural product biosynthetic machineries demonstrated that PokMT1 and MdpB1 belong to a phylogenetic clade of C-MTs that preferably act on aromatic acids. Significantly, this clade includes the structurally characterized enzyme SibL, which catalyzes C methylation of 3-hydroxykynurenine in its free acid form, using two conserved tyrosine residues for catalysis. A homology model and site-directed mutagenesis suggested that PokMT1 also employs this unusual arrangement of tyrosine residues to coordinate C-methylation but revealed a large cavity capable of accommodating the CoA moiety tethered to 5. CoA activation of the aromatic acid substrate may represent a general strategy that could be exploited to improve catalytic efficiency. This study sets the stage to further investigate and exploit the catalytic utility of this emerging family of C-MTs in biocatalysis and synthetic biology. PMID- 29341604 TI - Ce3+-Doping to Modulate Photoluminescence Kinetics for Efficient CsPbBr3 Nanocrystals Based Light-Emitting Diodes. AB - Inorganic perovskite CsPbBr3 nanocrystals (NCs) are emerging, highly attractive light emitters with high color purity and good thermal stability for light emitting diodes (LEDs). Their high photo/electroluminescence efficiencies are very important for fabricating efficient LEDs. Here, we propose a novel strategy to enhance the photo/electroluminescence efficiency of CsPbBr3 NCs through doping of heterovalent Ce3+ ions via a facile hot-injection method. The Ce3+ cation was chosen as the dopant for CsPbBr3 NCs by virtue of its similar ion radius and formation of higher energy level of conduction band with bromine in comparison with the Pb2+ cation to maintain the integrity of perovskite structure without introducing additional trap states. It was found that by increasing the doping amount of Ce3+ in CsPbBr3 NCs to 2.88% (atomic percentage of Ce compared to Pb) the photoluminescence quantum yield (PLQY) of CsPbBr3 NCs reached up to 89%, a factor of 2 increase in comparison with the native, undoped ones. The ultrafast transient absorption and time-resolved photoluminescence (PL) spectroscopy revealed that Ce3+-doping can significantly modulate the PL kinetics to enhance the PL efficiency of doped CsPbBr3 NCs. As a result, the LED device fabricated by adopting Ce3+-doped CsPbBr3 NCs as the emitting layers exhibited a pronounced improvement of electroluminescence with external quantum efficiency (EQE) from 1.6 to 4.4% via Ce3+-doping. PMID- 29341605 TI - Prediction of Active Site and Distal Residues in E. coli DNA Polymerase III alpha Polymerase Activity. AB - The process of DNA replication is carried out with high efficiency and accuracy by DNA polymerases. The replicative polymerase in E. coli is DNA Pol III, which is a complex of 10 different subunits that coordinates simultaneous replication on the leading and lagging strands. The 1160-residue Pol III alpha subunit is responsible for the polymerase activity and copies DNA accurately, making one error per 105 nucleotide incorporations. The goal of this research is to determine the residues that contribute to the activity of the polymerase subunit. Homology modeling and the computational methods of THEMATICS and POOL were used to predict functionally important amino acid residues through their computed chemical properties. Site-directed mutagenesis and biochemical assays were used to validate these predictions. Primer extension, steady-state single-nucleotide incorporation kinetics, and thermal denaturation assays were performed to understand the contribution of these residues to the function of the polymerase. This work shows that the top 15 residues predicted by POOL, a set that includes the three previously known catalytic aspartate residues, seven remote residues, plus five previously unexplored first-layer residues, are important for function. Six previously unidentified residues, R362, D405, K553, Y686, E688, and H760, are each essential to Pol III activity; three additional residues, Y340, R390, and K758, play important roles in activity. PMID- 29341606 TI - Human Oxoguanine Glycosylase 1 Removes Solution Accessible 8-Oxo-7,8 dihydroguanine Lesions from Globally Substituted Nucleosomes Except in the Dyad Region. AB - Persistent DNA damage is responsible for mutagenesis, aging, and disease. Repair of the prototypic oxidatively damaged guanine lesion 8-oxo-7,8-dihydroguanine (8 oxoG) is initiated by oxoguanine glycosylase (hOGG1 in humans). In this work, we examine hOGG1 activity on DNA packaged as it is in chromatin, in a nucleosome core particle (NCP). We use synthetic methods to generate a population of NCPs with G to 8-oxoG substitutions and evaluate the global profile of hOGG1 repair in packaged DNA. For several turns of the helix, we observe that solution accessible 8-oxoGs are sites of activity for hOGG1. At the dyad axis, however, hOGG1 activity is suppressed, even at lesions predicted to be solution accessible by hydroxyl radical footprinting (HRF). We predict this diminished activity is due to the properties of the DNA unique to the dyad axis and/or the local histone environment. In contrast to the dyad axis, the DNA ends reveal hOGG1 activity at sites predicted by HRF to be both solution accessible and inaccessible. We attribute the lack of correlation between hOGG1 activity and solution accessibility at the ends of the DNA to transient unwrapping of the DNA from the protein core, thus exposing the inward-facing lesions. PMID- 29341607 TI - In Vitro Pharmacokinetic Optimizations of AM2-S31N Channel Blockers Led to the Discovery of Slow-Binding Inhibitors with Potent Antiviral Activity against Drug Resistant Influenza A Viruses. AB - Influenza viruses are respiratory pathogens that are responsible for both seasonal influenza epidemics and occasional influenza pandemics. The narrow therapeutic window of oseltamivir, coupled with the emergence of drug resistance, calls for the next-generation of antivirals. With our continuous interest in developing AM2-S31N inhibitors as oral influenza antivirals, we report here the progress of optimizing the in vitro pharmacokinetic (PK) properties of AM2-S31N inhibitors. Several AM2-S31N inhibitors, including compound 10b, were discovered to have potent channel blockage, single to submicromolar antiviral activity, and favorable in vitro PK properties. The antiviral efficacy of compound 10b was also synergistic with oseltamivir carboxylate. Interestingly, binding kinetic studies (Kd, Kon, and Koff) revealed several AM2-S31N inhibitors that have similar Kd values but significantly different Kon and Koff values. Overall, this study identified a potent lead compound (10b) with improved in vitro PK properties that is suitable for the in vivo mouse model studies. PMID- 29341608 TI - Molecular Dynamics Pinpoint the Global Fluorine Effect in Balanoid Binding to PKCepsilon and PKA. AB - (-)-Balanol is an adenosine triphosphate mimic that inhibits protein kinase C (PKC) isozymes and cAMP-dependent protein kinase (PKA) with limited selectivity. While PKA is known as a tumor promoter, PKC isozymes can be tumor promoters or suppressors. In particular, PKCepsilon is frequently involved in tumorigenesis and a potential target for anticancer drugs. We recently reported that stereospecific fluorination of balanol yielded a balanoid with enhanced selectivity for PKCepsilon over other PKC isozymes and PKA, although the global fluorine effect behind the selectivity enhancement is not fully understood. Interestingly, in contrast to PKA, PKCepsilon is more sensitive to this fluorine effect. Here we investigate the global fluorine effect on the different binding responses of PKCepsilon and PKA to balanoids using molecular dynamics (MD) simulations. For the first time to the best of our knowledge, we found that a structurally equivalent residue in each kinase, Thr184 in PKA and Ala549 in PKCepsilon, is essential for the different binding responses. Furthermore, the study revealed that the invariant Lys, Lys73 in PKA and Lys437 in PKCepsilon, already known to have a crucial role in the catalytic activity of kinases, serves as the main anchor for balanol binding. Overall, while Thr184 in PKA attenuates the effect of fluorination, Ala549 permits remote response of PKCepsilon to fluorine substitution, with implications for rational design of future balanol based PKCepsilon inhibitors. PMID- 29341609 TI - Probing and Quantifying the Food-Borne Pathogens and Toxins: From In Vitro to In Vivo. AB - Development of real-time and in situ analytical methods for determination of food borne pathogens and toxins ingested into the human body would be a promising research direction in the food-safety area. The present perspective starts with summarization of the up-to-date progress of the nanomaterial-assisted in vitro detection methods for pathogens and toxins and finally focuses on application of animal bioimaging to in vivo study, including prospective strategies for in vivo quantification of target pathogens or toxins and in vivo investigation of their behaviors inside the living body, with the assistance of real-time and non invasive optical bioimaging. This perspective provides the advisory direction for food-safety research, from in vitro to in vivo, along with a prospective discussion of the further development roadmap of the food-safety detection techniques, especially the bioimaging-guided methods for investigation and mediation of the food contamination effect to human health. PMID- 29341610 TI - Visible-Light-Mediated Ipso-Carboacylation of Alkynes: Synthesis of 3 Acylspiro[4,5]trienones from N-(p-Methoxyaryl)propiolamides and Acyl Chlorides. AB - A novel visible-light-mediated ipso-carboacylation of N-(p methoxyaryl)propiolamides with acyl chloride has been established for the synthesis of diverse 3-acylspiro[4,5]trienones with high selectivity and efficiency. This method represents a new difunctionalization of alkynes through cross coupling of the acyl chloride C-Cl bonds with an ipso-aromatic carbon by simultaneously forming two new carbon-carbon bonds and one carbon-oxygen double bond. PMID- 29341611 TI - Moving Boundary Truncated Grid Method for Wave Packet Dynamics. AB - The moving boundary truncated grid method is developed to significantly reduce the number of grid points required for wave packet propagation. The time dependent Schrodinger equation (TDSE) and the imaginary time Schrodinger equation (ITSE) are integrated using an adaptive algorithm which economizes the number of grid points. This method employs a variable number of grid points in the Eulerian frame (grid points fixed in space) and adaptively defines the boundaries of the truncated grid. The truncated grid method is first applied to the time integration of the TDSE for the photodissociation dynamics of NOCl and a three dimensional quantum barrier scattering problem. The time-dependent truncated grid precisely captures the wave packet evolution for the photodissociation of NOCl and finely adjusts according to the process of the wave packet bifurcation into reflected and transmitted components for the barrier scattering problem. The truncated grid method is also applied to the time integration of the ITSE for the eigenstates of quantum systems. Compared to the full grid calculations, the truncated grid method requires fewer grid points to achieve high accuracy for the stationary state energies and wave functions for a two-dimensional double well potential and the Ar trimer. Therefore, the truncated grid method demonstrates a significant reduction in the number of grid points needed to perform accurate wave packet propagation governed by the TDSE or the ITSE. PMID- 29341612 TI - Stabilization of NaBH4 in Methanol Using a Catalytic Amount of NaOMe. Reduction of Esters and Lactones at Room Temperature without Solvent-Induced Loss of Hydride. AB - Rapid reaction of NaBH4 with MeOH precludes its use as a solvent for large-scale ester reductions. We have now learned that a catalytic amount of NaOMe (5 mol %) stabilizes NaBH4 solutions in methanol at 25 degrees C and permits the use of these solutions for the reduction of esters to alcohols. The generality of this reduction method was demonstrated using 22 esters including esters of naturally occurring chiral gamma-butyrolactone containing dicarboxylic acids. This method permits the chemoselective reductions of esters in the presence of cyano and nitro groups and the reductive cyclization of a pyrrolidinedione ester to a fused five-membered furo[2,3-b]pyrrole and a (-)-crispine A analogue in high optical and chemical yields. Lactones, aliphatic esters, aromatic esters containing electron-withdrawing groups, and heteroaryl esters are reduced more rapidly than aryl esters containing electron-donating groups. The 11B NMR spectrum of the NaOMe-stabilized NaBH4 solutions showed a minor quartet due to monomethoxyborohydride (NaBH3OMe) that persisted up to 18 h at 25 degrees C. We postulate that NaBH3OMe is probably the active reducing agent. In support of this hypothesis, the activation barrier for hydride transfer from BH3(OMe)- onto benzoic acid methyl ester was calculated as 18.3 kcal/mol. PMID- 29341613 TI - What Gives an Insulin Hexamer Its Unique Shape and Stability? Role of Ten Confined Water Molecules. AB - Self-assembly of proteins often gives rise to interesting quasi-stable structures that serve important biological purposes. Insulin hexamer is such an assembly. While monomer is the biologically active form of insulin, hexamer serves as the storehouse of the hormone. The hexamer also prevents the formation of higher order aggregates. While several studies explored the role of bivalent metal ions like Zn2+, Ca2+, etc., in the stabilization of the hexameric form, the role of water molecules has been ignored. We combine molecular dynamics simulations, quantum calculations, and X-ray analyses to discover that a team of approximately 10 water molecules confined inside a barrel-shaped nanocavity at the center of insulin hexamer is one of the major causes that account for the unusual stability of the biomolecular assembly. These cavity water molecules exhibit interesting dynamical features like intermittent escape and reentrance. We find that these water molecules are dynamically slower than the bulk and weave an intricate hydrogen bond network among themselves and with neighboring protein residues to generate a robust backbone at the center of the hexamer that holds the association strongly from inside and maintains the barrel shape. PMID- 29341614 TI - Synthesis of Quinazolines via an Iron-Catalyzed Oxidative Amination of N-H Ketimines. AB - An efficient synthesis of quinazolines based on an iron-catalyzed C(sp3)-H oxidation and intramolecular C-N bond formation using tert-BuOOH as the terminal oxidant is described. The reaction of readily available 2-alkylamino benzonitriles with various organometallic reagents led to 2-alkylamino N-H ketimine species. The FeCl2-catalyzed C(sp3)-H oxidation of the alkyl group employing tert-BuOOH followed by intramolecular C-N bond formation and aromatization afforded a wide variety of 2,4-disubstituted quinazolines in good to excellent yields. PMID- 29341615 TI - Merely Measuring the UV-Visible Spectrum of Gold Nanoparticles Can Change Their Charge State. AB - Metallic nanostructures exhibit a strong plasmon resonance at a wavelength whose value is sensitive to the charge density in the nanostructure, its size, shape, interparticle coupling, and the dielectric properties of its surrounding medium. Here we use UV-visible transmission and reflectance spectroscopy to track the shifts of the plasmon resonance in an array of gold nanoparticles buried under metal-oxide layers of varying thickness produced using atomic layer deposition (ALD) and then coated with bulk layers of one of three metals: aluminum, silver, or gold. A significant shift in the plasmon resonance was observed and a precise value of omegap, the plasmon frequency of the gold comprising the nanoparticles, was determined by modeling the composite of gold nanoparticles and metal-oxide layer as an optically homogeneous film of core-shell particles bounded by two substrates: one of quartz and the other being one of the aforementioned metals, then using a Maxwell-Garnett effective medium expression to extract omegap for the gold nanoparticles before and after coating with the bulk metals. Under illumination, the change in the charge density of the gold nanoparticles per particle determined from the change in the values of omegap is found to be some 50-fold greater than what traditional electrostatic contact electrification models compute based on the work function difference of the two conductive materials. Moreover, when using bulk gold as the capping layer, which should have resulted in a negligible charge exchange between the gold nanoparticles and the bulk gold, a significant charge transfer from the bulk gold layer to the nanoparticles was observed as with the other metals. We explain these observations in terms of the "plasmoelectric effect", recently described by Atwater and co-workers, in which the gold nanoparticles modify their charge density to allow their resonant wavelength to match that of the incident light, thereby achieving, a lower value of the chemical potential due to the entropy increase resulting from the conversion of the plasmon's energy to heat. We conclude that even the act of registering the spectrum of nanoparticles is at times sufficient to alter their charge densities and hence their UV-visible spectra. PMID- 29341616 TI - Stochasticity of Pores Interconnectivity in Li-O2 Batteries and its Impact on the Variations in Electrochemical Performance. AB - While large dispersions in electrochemical performance have been reported for lithium oxygen batteries in the literature, they have not been investigated in any depth. The variability in the results is often assumed to arise from differences in cell design, electrode structure, handling and cell preparation at different times. An accurate theoretical framework turns out to be needed to get a better insight into the mechanisms underneath and to interpret experimental results. Here, we develop and use a pore network model to simulate the electrochemical performance of three-dimensionally resolved lithium-oxygen cathode mesostructures obtained from TXM nanocomputed tomography. We apply this model to the 3D reconstructed object of a Super P carbon electrode and calculate discharge curves, using identical conditions, for four different zones in the electrode and their reversed configurations. The resulting galvanostatic discharge curves show some dispersion, (both in terms of capacity and overpotential) which we attribute to the way pores are connected with each other. Based on these results, we propose that the stochastic nature of pores interconnectivity and the microscopic arrangement of pores can lead, at least partially, to the variations in electrochemical results observed experimentally. PMID- 29341618 TI - Reactions of 1,5-Diaryl-3-(trifluoromethyl)pent-1-en-4-yn-3-yl Cations with Benzene in TfOH. Synthesis of CF3-"Helicopter"-Like Molecules. AB - Trimethylsilyl ethers of 1,5-diaryl-3-(trifluoromethyl)pent-1-en-4-yn-3-oles in superacid CF3SO3H (TfOH) give rise to the corresponding intermediate CF3 pentenynyl cations. These species react with benzene to afford conjugated CF3 pentenynes, which undergo subsequent cyclization, first, into CF3 cycloheptadienes and, finally, into unusual CF3-"helicopter"-like bicyclic structures. PMID- 29341617 TI - Enhancing Docetaxel Delivery to Multidrug-Resistant Cancer Cells with Albumin Coated Nanocrystals. AB - Intravenous delivery of poorly water-soluble anticancer drugs such as docetaxel (DTX) is challenging due to the low bioavailability and the toxicity related to solubilizing excipients. Colloidal nanoparticles are used as alternative carriers, but low drug loading capacity and circulation instability limit their clinical translation. To address these challenges, DTX nanocrystals (NCs) were prepared using Pluronic F127 as an intermediate stabilizer and albumin as a functional surface modifier, which were previously found to be effective in producing small and stable NCs. We hypothesize that the albumin-coated DTX NCs (DTX-F-alb) will remain stable in serum-containing medium so as to effectively leverage the enhanced permeability and retention effect. In addition, the surface bound albumin, in its native form, may contribute to cellular transport of NCs through interactions with albumin-binding proteins such as secreted protein acidic and rich in cysteine (SPARC). DTX-F-alb NCs showed sheet-like structure with an average length, width, and thickness of 284 +/- 96, 173 +/- 56, and 40 +/ 8 nm and remained stable in 50% serum solution at a concentration greater than 10 MUg/mL. Cytotoxicity and cellular uptake of DTX-F-alb and unformulated (free) DTX were compared on three cell lines with different levels of SPARC expression and DTX sensitivity. While the uptake of free DTX was highly dependent on DTX sensitivity, DTX-F-alb treatment resulted in relatively consistent cellular levels of DTX. Free DTX was more efficient in entering drug-sensitive B16F10 and SKOV-3 cells than DTX-F-alb, with consistent cytotoxic effects. In contrast, multidrug-resistant NCI/ADR-RES cells took up DTX-F-alb more than free DTX with time and responded better to the former. This difference was reduced by SPARC knockdown. The high SPARC expression level of NCI/ADR-RES cells, the known affinity of albumin for SPARC, and the opposing effect of SPARC knockdown support that DTX-F-alb have exploited the surface-bound albumin-SPARC interaction in entering NCI/ADR-RES cells. Albumin-coated NC system is a promising formulation for the delivery of hydrophobic anticancer drugs to multidrug-resistant tumors. PMID- 29341619 TI - New Folate-Grafted Chitosan Derivative To Improve Delivery of Paclitaxel-Loaded Solid Lipid Nanoparticles for Lung Tumor Therapy by Inhalation. AB - Inhaled chemotherapy for the treatment of lung tumors requires that drug delivery systems improve selectivity for cancer cells and tumor penetration and allow sufficient lung residence. To this end, we developed solid lipid nanoparticles (SLN) with modified surface properties. We successfully synthesized a new folate grafted copolymer of polyethylene glycol (PEG) and chitosan, F-PEG-HTCC, with a PEG-graft ratio of 7% and a molecular weight range of 211-250 kDa. F-PEG-HTCC coated, paclitaxel-loaded SLN were prepared with an encapsulation efficiency, mean diameter, and zeta potential of about 100%, 250 nm, and +32 mV, respectively. The coated SLN entered folate receptor (FR)-expressing HeLa and M109-HiFR cells in vitro and M109 tumors in vivo after pulmonary delivery. The coated SLN significantly decreased the in vitro half-maximum inhibitory concentrations of paclitaxel in M109-HiFR cells (60 vs 340 nM, respectively). We demonstrated that FR was involved in these improvements, especially in M109-HiFR cells. After pulmonary delivery in vivo, the coated SLN had a favorable pharmacokinetic profile, with pulmonary exposure to paclitaxel prolonged to up to 6 h and limited systemic distribution. Our preclinical findings therefore demonstrated the positive impact of the coated SLN on the delivery of paclitaxel by inhalation. PMID- 29341620 TI - Hedychins A and B, 6,7-Dinorlabdane Diterpenoids with a Peroxide Bridge from Hedychium forrestii. AB - Hedychins A (1) and B (2), two unprecedented 6,7-dinorlabdane ditepenoids with a peroxide bridge, were obtained from the rhizomes of Hedychium forrestii. Their structures and absolute configurations were unequivocally established by a combination of spectroscopic data and X-ray single-crystal diffractions. Their plausible biosynthetic pathway was proposed. Compound 2 exhibited cytotoxicity against HepG2 and XWLC-05 cell lines with IC50 values of 8.0 and 19.7 MUM, respectively. PMID- 29341621 TI - Sustainable HandaPhos-ppm Palladium Technology for Copper-Free Sonogashira Couplings in Water under Mild Conditions. AB - Complexation of ca. 1000 ppm Pd(OAc)2 with the ligand HandaPhos (1-1.5:1) leads to a precatalyst that efficiently mediates Sonogashira couplings in aqueous nanomicelles under very mild conditions. Neither copper nor organic solvent is required in the reaction medium, and the product can be isolated directly from the reaction flask, leaving behind a reaction mixture that can be recycled without additional additives. PMID- 29341622 TI - Cyclic Peptoids as Topological Templates: Synthesis via Central to Conformational Chirality Induction. AB - Chiral induction was utilized for the synthesis of diastereopure cyclic peptoids containing an N-benzyl alanine residue. Molecular modeling, NMR spectroscopy, single-crystal X-ray diffraction studies, and HPLC with chiral stationary phase demonstrated easy formation of free and sodium/benzylammonium complexed cyclic oligomers through strategic incorporation of a single stereogenic center in the oligomeric backbone. The synthesis of cyclic peptoids with defined conformational chirality and appropriate side chain topology is now possible. PMID- 29341623 TI - Is Subsurface Oxygen Necessary for the Electrochemical Reduction of CO2 on Copper? AB - It has recently been proposed that subsurface oxygen is crucial for the adsorption and subsequent electroreduction of CO2 on copper. Using density functional theory, we have studied the stability and diffusion of subsurface oxygen in single crystals of copper exposing (111) and (100) facets. Oxygen is at least 1.5 eV more stable on the surface than beneath it for both crystal orientations; interstitial sites are too small to accommodate oxygen. The rate of atomic oxygen diffusion from one layer below a Cu(111) surface to the surface is 5 * 103 s-1. Oxygen can survive longer in deeper layers, but it does not promote CO2 adsorption there. Diffusion of subsurface oxygen is easier to the less-dense Cu(100) surface, even from lower layers (rate ~ 1 * 107 s-1). Once the applied voltage and dispersion forces are properly modeled, we find that subsurface oxygen is unnecessary for CO2 adsorption on copper. PMID- 29341624 TI - Regio and Enantioselective Organocatalytic Friedel-Crafts Alkylation of 4 Aminoindoles at the C7-Position. AB - A chiral phosphoric acid catalyzed highly regio- and enantioselective Friedel Crafts alkylation at the indole C7-position was developed via the introduction of an alkylamine moiety at the C4-position of the indole ring. The methodology is applicable to a wide range of 4-aminoindoles and beta,gamma-unsaturated alpha ketimino esters to furnish the corresponding C7-position functionalized chiral indole derivatives in high yields with moderate to excellent enantioselectivities. Furthermore, the alpha-ketimino ester moiety in the products is a versatile building block and enables many further transformations. PMID- 29341625 TI - Biomimetic Total Syntheses of Callistrilones A, B, and D. AB - A biomimetic total syntheses of antibacterial natural products (+/-) callistrilones A, B, and D, the first triketone-phloroglucinol-monoterpene hybrids with an unprecedented [1]benzofuro[2,3-a]xanthene and [1]benzofuro[3,2 b]xanthene pentacyclic ring system along with the postulated biosynthetic intermediate, isolated from the leaves of Callistemon rigidus, were achieved. The total synthesis features highly regio- and diastereoselective catalytic Friedel Crafts alkylation, palladium-catalyzed Wacker-type oxidative cyclization, Michael addition, and late-stage diastereoselective epoxide formation from the extremely hindered beta face as key steps. PMID- 29341626 TI - Hierarchically Patterned Noncovalent Functionalization of 2D Materials by Controlled Langmuir-Schaefer Conversion. AB - Noncovalent monolayer chemistries are often used to functionalize 2D materials. Nanoscopic ligand ordering has been widely demonstrated (e.g., lying-down lamellar phases of functional alkanes); however, combining this control with micro- and macroscopic patterning for practical applications remains a significant challenge. A few reports have demonstrated that standing phase Langmuir films on water can be converted into nanoscopic lying-down molecular domains on 2D substrates (e.g., graphite), using horizontal dipping (Langmuir Schaefer, LS, transfer). Molecular patterns are known to form at scales up to millimeters in Langmuir films, suggesting the possibility of transforming such structures into functional patterns on 2D materials. However, to our knowledge, this approach has not been investigated, and the rules governing LS conversion are not well understood. In part, this is because the conversion process is mechanistically very different from classic LS transfer of standing phases; challenges also arise due to the need to characterize structure in noncovalently adsorbed ligand layers <0.5 nm thick, at scales ranging from millimeters to nanometers. Here, we show that scanning electron microscopy enables diynoic acid lying-down phases to be imaged across this range of scales; using this structural information, we establish conditions for LS conversion to create hierarchical microscopic and nanoscopic functional patterns. Such control opens the door to tailoring noncovalent surface chemistry of 2D materials to pattern local interactions with the environment. PMID- 29341627 TI - Ru(II)-Catalyzed Oxidative Heck-Type Olefination of Aromatic Carboxylic Acids with Styrenes through Carboxylate-Assisted C-H Bond Activation. AB - A straightforward synthesis of 2-styrylbenzoic acids from aryl carboxylic acids is disclosed through a carboxylate-assisted coupling under Ru(II) catalysis. This protocol is simple and exhibits broad scope with high tolerance of common organic functional groups, providing good to excellent yields of diverse olefinated products. The efficacy of this protocol has been showcased through sequential syntheses of isochromanone, isocoumarin, and formal synthesis of anacardic acid derivative in good yields. PMID- 29341628 TI - Dark Matter Coannihilation with a Lighter Species. AB - We propose a new thermal freeze-out mechanism for ultraheavy dark matter. Dark matter coannihilates with a lighter unstable species that is nearby in mass, leading to an annihilation rate that is exponentially enhanced relative to standard weakly interactive massive particles. This scenario destabilizes any potential dark matter candidate. In order to remain consistent with astrophysical observations, our proposal necessitates very long-lived states, motivating striking phenomenology associated with the late decays of ultraheavy dark matter, potentially as massive as the scale of grand unified theories, M_{GUT}~10^{16} GeV. PMID- 29341629 TI - Mirror Charge Radii and the Neutron Equation of State. AB - The differences in the charge radii of mirror nuclei are shown to be proportional to the derivative of the neutron equation of state and the symmetry energy at nuclear matter saturation density. This derivative is important for constraining the neutron equation of state for use in astrophysics. The charge radii of several neutron-rich nuclei are already measured to the accuracy of about 0.005 fm. Experiments at isotope-separator and radioactive-beam facilities are needed to measure the charge radii of the corresponding proton-rich mirror nuclei to a similar accuracy. It is also shown that neutron skins of nuclei with N=Z depend upon the value of the symmetry energy at a density of 0.10 nucleons/fm^{3}. PMID- 29341630 TI - Terahertz Sum-Frequency Excitation of a Raman-Active Phonon. AB - In stimulated Raman scattering, two incident optical waves induce a force oscillating at the difference of the two light frequencies. This process has enabled important applications such as the excitation and coherent control of phonons and magnons by femtosecond laser pulses. Here, we experimentally and theoretically demonstrate the so far neglected up-conversion counterpart of this process: THz sum-frequency excitation of a Raman-active phonon mode, which is tantamount to two-photon absorption by an optical transition between two adjacent vibrational levels. Coherent control of an optical lattice vibration of diamond is achieved by an intense terahertz pulse whose spectrum is centered at half the phonon frequency of 40 THz. Remarkably, the carrier-envelope phase of the THz pulse is directly transferred into the phase of the lattice vibration. New prospects in general infrared spectroscopy, action spectroscopy, and lattice trajectory control in the electronic ground state emerge. PMID- 29341631 TI - Rapid Transition of the Hole Rashba Effect from Strong Field Dependence to Saturation in Semiconductor Nanowires. AB - The electric field manipulation of the Rashba spin-orbit coupling effects provides a route to electrically control spins, constituting the foundation of the field of semiconductor spintronics. In general, the strength of the Rashba effects depends linearly on the applied electric field and is significant only for heavy-atom materials with large intrinsic spin-orbit interaction under high electric fields. Here, we illustrate in 1D semiconductor nanowires an anomalous field dependence of the hole (but not electron) Rashba effect (HRE). (i) At low fields, the strength of the HRE exhibits a steep increase with the field so that even low fields can be used for device switching. (ii) At higher fields, the HRE undergoes a rapid transition to saturation with a giant strength even for light atom materials such as Si (exceeding 100 meV A). (iii) The nanowire-size dependence of the saturation HRE is rather weak for light-atom Si, so size fluctuations would have a limited effect; this is a key requirement for scalability of Rashba-field-based spintronic devices. These three features offer Si nanowires as a promising platform for the realization of scalable complementary metal-oxide-semiconductor compatible spintronic devices. PMID- 29341632 TI - Polarizing Oxygen Vacancies in Insulating Metal Oxides under a High Electric Field. AB - We demonstrate a thermodynamic formulation to quantify defect formation energetics in an insulator under a high electric field. As a model system, we analyzed neutral oxygen vacancies (color centers) in alkaline-earth-metal binary oxides using density functional theory, Berry phase calculations, and maximally localized Wannier functions. The work of polarization lowers the field-dependent electric Gibbs energy of formation of this defect. This is attributed mainly to the ease of polarizing the two electrons trapped in the vacant site, and secondarily to the defect induced reduction in bond stiffness and softening of phonon modes. The formulation and analysis have implications for understanding the behavior of insulating oxides in electronic, magnetic, catalytic, and electrocaloric devices under a high electric field. PMID- 29341633 TI - Universal Quantum Computing with Measurement-Induced Continuous-Variable Gate Sequence in a Loop-Based Architecture. AB - We propose a scalable scheme for optical quantum computing using measurement induced continuous-variable quantum gates in a loop-based architecture. Here, time-bin-encoded quantum information in a single spatial mode is deterministically processed in a nested loop by an electrically programmable gate sequence. This architecture can process any input state and an arbitrary number of modes with almost minimum resources, and offers a universal gate set for both qubits and continuous variables. Furthermore, quantum computing can be performed fault tolerantly by a known scheme for encoding a qubit in an infinite dimensional Hilbert space of a single light mode. PMID- 29341634 TI - Publisher's Note: Ultimate Precision of Adaptive Noise Estimation [Phys. Rev. Lett. 118, 100502 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.118.100502. PMID- 29341635 TI - Low-Field-Triggered Large Magnetostriction in Iron-Palladium Strain Glass Alloys. AB - Development of miniaturized magnetostriction-associated devices requires low field-triggered large magnetostriction. In this study, we acquired a large magnetostriction (800 ppm) triggered by a low saturation field (0.8 kOe) in iron palladium (Fe-Pd) alloys. Magnetostriction enhancement jumping from 340 to 800 ppm was obtained with a slight increase in Pd concentration from 31.3 to 32.3 at. %. Further analysis showed that such a slight increase led to suppression of the long-range ordered martensitic phase and resulted in a frozen short-range ordered strain glass state. This strain glass state possessed a two-phase nanostructure with nanosized frozen strain domains embedded in the austenite matrix, which was responsible for the unique magnetostriction behavior. Our study provides a way to design novel magnetostrictive materials with low-field-triggered large magnetostriction. PMID- 29341636 TI - Pair Potential with Submillikelvin Uncertainties and Nonadiabatic Treatment of the Halo State of the Helium Dimer. AB - The pair potential for helium is computed with accuracy improved by an order of magnitude relative to the best previous determination. For the well region, its uncertainties are now below 1 millikelvin. The main improvement is due to the use of explicitly correlated wave functions at the nonrelativistic Born-Oppenheimer (BO) level of theory. The diagonal BO and the relativistic corrections are obtained from large full configuration interaction calculations. Nonadiabatic perturbation theory is used to predict the properties of the halo state of the helium dimer. Its binding energy and the average value of the interatomic distance are found to be 138.9(5) neV and 47.13(8) A. The binding energy agrees with its first experimental determination of 151.9(13.3) neV [Zeller et al., Proc. Natl. Acad. Sci. U.S.A. 113, 14651 (2016)PNASA60027 842410.1073/pnas.1610688113]. PMID- 29341637 TI - Enhancing Sideband Cooling by Feedback-Controlled Light. AB - We realize a phase-sensitive closed-loop control scheme to engineer the fluctuations of the pump field which drives an optomechanical system and show that the corresponding cooling dynamics can be significantly improved. In particular, operating in the counterintuitive "antisquashing" regime of positive feedback and increased field fluctuations, sideband cooling of a nanomechanical membrane within an optical cavity can be improved by 7.5 dB with respect to the case without feedback. Close to the quantum regime of reduced thermal noise, such feedback-controlled light would allow going well below the quantum backaction cooling limit. PMID- 29341638 TI - Quantum Communication Using Coherent Rejection Sampling. AB - Compression of a message up to the information it carries is key to many tasks involved in classical and quantum information theory. Schumacher [B. Schumacher, Phys. Rev. A 51, 2738 (1995)PLRAAN1050-294710.1103/PhysRevA.51.2738] provided one of the first quantum compression schemes and several more general schemes have been developed ever since [M. Horodecki, J. Oppenheim, and A. Winter, Commun. Math. Phys. 269, 107 (2007); CMPHAY0010-361610.1007/s00220-006-0118-xI. Devetak and J. Yard, Phys. Rev. Lett. 100, 230501 (2008); PRLTAO0031 900710.1103/PhysRevLett.100.230501A. Abeyesinghe, I. Devetak, P. Hayden, and A. Winter, Proc. R. Soc. A 465, 2537 (2009)PRLAAZ1364-502110.1098/rspa.2009.0202]. However, the one-shot characterization of these quantum tasks is still under development, and often lacks a direct connection with analogous classical tasks. Here we show a new technique for the compression of quantum messages with the aid of entanglement. We devise a new tool that we call the convex split lemma, which is a coherent quantum analogue of the widely used rejection sampling procedure in classical communication protocols. As a consequence, we exhibit new explicit protocols with tight communication cost for quantum state merging, quantum state splitting, and quantum state redistribution (up to a certain optimization in the latter case). We also present a port-based teleportation scheme which uses a fewer number of ports in the presence of information about input. PMID- 29341639 TI - Enhanced Second-Order Nonlinearity for THz Generation by Resonant Interaction of Exciton-Polariton Rabi Oscillations with Optical Phonons. AB - Semiconductor microcavities in the strong-coupling regime exhibit an energy scale in the terahertz (THz) frequency range, which is fixed by the Rabi splitting between the upper and lower exciton-polariton states. While this range can be tuned by several orders of magnitude using different excitonic media, the transition between both polaritonic states is dipole forbidden. In this work, we show that, in cadmium telluride microcavities, the Rabi-oscillation-driven THz radiation is actually active without the need for any change in the microcavity design. This feature results from the unique resonance condition which is achieved between the Rabi splitting and the phonon-polariton states and leads to a giant enhancement of the second-order nonlinearity. PMID- 29341640 TI - Role of Intrapulse Coherence in Carrier-Envelope Phase Stabilization. AB - The concept of coherence is of fundamental importance for describing the physical characteristics of light and for evaluating the suitability for experimental application. In the case of pulsed laser sources, the pulse-to-pulse coherence is usually considered for a judgment of the compressibility of the pulse train. This type of coherence is often lost during propagation through a highly nonlinear medium, and pulses prove incompressible despite multioctave spectral coverage. Notwithstanding the apparent loss of interpulse coherence, however, supercontinua enable applications in precision frequency metrology that rely on coherence between different spectral components within a laser pulse. To judge the suitability of a light source for the latter application, we define an alternative criterion, which we term intrapulse coherence. This definition plays a limiting role in the carrier-envelope phase measurement and stabilization of ultrashort pulses. It is shown by numerical simulation and further corroborated by experimental data that filamentation-based supercontinuum generation may lead to a loss of intrapulse coherence despite near-perfect compressibility of the pulse train. This loss of coherence may severely limit active and passive carrier envelope phase stabilization schemes and applications in optical high-field physics. PMID- 29341641 TI - Simultaneous Deep Tunneling and Classical Hopping for Hydrogen Diffusion on Metals. AB - Hydrogen diffusion on metals exhibits rich quantum behavior, which is not yet fully understood. Using simulations, we show that many hydrogen diffusion barriers can be categorized into those with parabolic tops and those with broad tops. With parabolic-top barriers, hydrogen diffusion evolves gradually from classical hopping, to shallow tunneling, to deep tunneling as the temperature (T) decreases, and noticeable quantum effects persist at moderate T. In contrast, with broad-top barriers quantum effects become important only at low T and the classical-to-quantum transition is sharp, at which classical hopping and deep tunneling both occur. This coexistence indicates that more than one mechanism contributes to the quantum reaction rate. The conventional definition of the classical-to-quantum crossover T is invalid for the broad tops, and we give a new definition. Extending this, we propose a model to predict the transition T for broad-top diffusion, providing a general guide for theory and experiment. PMID- 29341642 TI - Magnetic Proximity Effects in Transition-Metal Dichalcogenides: Converting Excitons. AB - The two-dimensional character and reduced screening in monolayer transition-metal dichalcogenides (TMDs) lead to the ubiquitous formation of robust excitons with binding energies orders of magnitude larger than in bulk semiconductors. Focusing on neutral excitons, bound electron-hole pairs that dominate the optical response in TMDs, it is shown that they can provide fingerprints for magnetic proximity effects in magnetic heterostructures. These proximity effects cannot be described by the widely used single-particle description but instead reveal the possibility of a conversion between optically inactive and active excitons by rotating the magnetization of the magnetic substrate. With recent breakthroughs in fabricating Mo- and W-based magnetic TMD heterostructures, this emergent optical response can be directly tested experimentally. PMID- 29341643 TI - Generalized Magnetic Mirrors. AB - We propose generalized magnetic mirrors that can be achieved by excitations of sole electric resonances. Conventional approaches to obtain magnetic mirrors rely heavily on exciting the fundamental magnetic dipoles, whereas here we reveal that, besides magnetic resonances, electric resonances of higher orders can be also employed to obtain highly efficient magnetic mirrors. Based on the electromagnetic duality, it is also shown that electric mirrors can be achieved by exciting magnetic resonances. We provide direct demonstrations of the generalized mirrors proposed in a simple system of a one-dimensional periodic array of all-dielectric wires, which may shed new light on many advanced fields of photonics related to resonant multipolar excitations and interferences. PMID- 29341644 TI - Scale-Dependent Stiffness and Internal Tension of a Model Brush Polymer. AB - Bottle-brush polymers exhibit closely grafted side chains that interact by steric repulsion, thereby causing stiffening of the main polymer chain. We use single molecule elasticity measurements of model brush polymers to quantify this effect. We find that stiffening is only significant on long length scales, with the main chain retaining flexibility on short scales. From the elasticity data, we extract an estimate of the internal tension generated by side-chain repulsion; this estimate is consistent with the predictions of blob-based scaling theories. PMID- 29341645 TI - Contextuality as a Resource for Models of Quantum Computation with Qubits. AB - A central question in quantum computation is to identify the resources that are responsible for quantum speed-up. Quantum contextuality has been recently shown to be a resource for quantum computation with magic states for odd-prime dimensional qudits and two-dimensional systems with real wave functions. The phenomenon of state-independent contextuality poses a priori an obstruction to characterizing the case of regular qubits, the fundamental building block of quantum computation. Here, we establish contextuality of magic states as a necessary resource for a large class of quantum computation schemes on qubits. We illustrate our result with a concrete scheme related to measurement-based quantum computation. PMID- 29341646 TI - Erratum: Ultimate Precision of Adaptive Noise Estimation [Phys. Rev. Lett. 118, 100502 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.118.100502. PMID- 29341647 TI - Attosecond Electron Correlation Dynamics in Double Ionization of Benzene Probed with Two-Electron Angular Streaking. AB - With a novel three-dimensional electron-electron coincidence imaging technique and two-electron angular streaking method, we show that the emission time delay between two electrons can be measured from tens of attoseconds to more than 1 fs. Surprisingly, in benzene, the double ionization rate decays as the time delay between the first and second electron emission increases during the first 500 as. This is further supported by the decay of the Coulomb repulsion in the direction perpendicular to the laser polarization. This result reveals that laser-induced electron correlation plays a major role in strong field double ionization of benzene driven by a nearly circularly polarized field. PMID- 29341648 TI - Thermal Transport in the Kitaev Model. AB - In conventional insulating magnets, heat is carried by magnons and phonons. In contrast, when the magnets harbor a quantum spin liquid state, emergent quasiparticles from the fractionalization of quantum spins can carry heat. Here, we investigate unconventional thermal transport yielded by such exotic carriers, in both longitudinal and transverse components, for the Kitaev model, whose ground state is exactly shown to be a quantum spin liquid with fractional excitations described as itinerant Majorana fermions and localized Z_{2} fluxes. We find that the longitudinal thermal conductivity exhibits a single peak at a high temperature, while the nonzero frequency component has a peak at a low temperature, reflecting the spin fractionalization. On the other hand, we show that the transverse thermal conductivity is induced by the magnetic field in a wide temperature range up to the energy scale of the bare exchange coupling; while increasing temperature, the transverse response divided by temperature decreases from the quantized value expected for the topologically nontrivial ground state and shows nonmonotonic temperature dependence. These characteristic behaviors provide experimentally accessible evidence of fractional excitations in the proximity to the Kitaev quantum spin liquid. PMID- 29341649 TI - Gaussian Hypothesis Testing and Quantum Illumination. AB - Quantum hypothesis testing is one of the most basic tasks in quantum information theory and has fundamental links with quantum communication and estimation theory. In this paper, we establish a formula that characterizes the decay rate of the minimal type-II error probability in a quantum hypothesis test of two Gaussian states given a fixed constraint on the type-I error probability. This formula is a direct function of the mean vectors and covariance matrices of the quantum Gaussian states in question. We give an application to quantum illumination, which is the task of determining whether there is a low reflectivity object embedded in a target region with a bright thermal-noise bath. For the asymmetric-error setting, we find that a quantum illumination transmitter can achieve an error probability exponent stronger than a coherent-state transmitter of the same mean photon number, and furthermore, that it requires far fewer trials to do so. This occurs when the background thermal noise is either low or bright, which means that a quantum advantage is even easier to witness than in the symmetric-error setting because it occurs for a larger range of parameters. Going forward from here, we expect our formula to have applications in settings well beyond those considered in this paper, especially to quantum communication tasks involving quantum Gaussian channels. PMID- 29341650 TI - Characterization of the ^{163}Ho Electron Capture Spectrum: A Step Towards the Electron Neutrino Mass Determination. AB - The isotope ^{163}Ho is in many ways the best candidate to perform experiments to investigate the value of the electron neutrino mass. It undergoes an electron capture process to ^{163}Dy with an energy available to the decay, Q_{EC}, of about 2.8 keV. According to the present knowledge, this is the lowest Q_{EC} value for such transitions. Here we discuss a newly obtained spectrum of ^{163}Ho, taken by cryogenic metallic magnetic calorimeters with ^{163}Ho implanted in the absorbers and operated in anticoincident mode for background reduction. For the first time, the atomic deexcitation of the ^{163}Dy daughter atom following the capture of electrons from the 5s shell in ^{163}Ho, the OI line, was observed with a calorimetric measurement. The peak energy is determined to be 48 eV. In addition, a precise determination of the energy available for the decay Q_{EC}=(2.858+/-0.010_{stat}+/-0.05_{syst}) keV was obtained by analyzing the intensities of the lines in the spectrum. This value is in good agreement with the measurement of the mass difference between ^{163}Ho and ^{163}Dy obtained by Penning-trap mass spectrometry, demonstrating the reliability of the calorimetric technique. PMID- 29341651 TI - Lattice Homotopy Constraints on Phases of Quantum Magnets. AB - The Lieb-Schultz-Mattis (LSM) theorem and its extensions forbid trivial phases from arising in certain quantum magnets. Constraining infrared behavior with the ultraviolet data encoded in the microscopic lattice of spins, these theorems tie the absence of spontaneous symmetry breaking to the emergence of exotic phases like quantum spin liquids. In this work, we take a new topological perspective on these theorems, by arguing they originate from an obstruction to "trivializing" the lattice under smooth, symmetric deformations, which we call the "lattice homotopy problem." We conjecture that all LSM-like theorems for quantum magnets (many previously unknown) can be understood from lattice homotopy, which automatically incorporates the full spatial symmetry group of the lattice, including all its point-group symmetries. One consequence is that any spin symmetric magnet with a half-integer moment on a site with even-order rotational symmetry must be a spin liquid. To substantiate the claim, we prove the conjecture in two dimensions for some physically relevant settings. PMID- 29341652 TI - Cascade of Magnetic-Field-Induced Lifshitz Transitions in the Ferromagnetic Kondo Lattice Material YbNi_{4}P_{2}. AB - A ferromagnetic quantum critical point is thought not to exist in two- and three dimensional metallic systems yet is realized in the Kondo lattice compound YbNi_{4}(P,As)_{2}, possibly due to its one-dimensionality. It is crucial to investigate the dimensionality of the Fermi surface of YbNi_{4}P_{2} experimentally, but common probes such as angle-resolved photoemission spectroscopy and quantum oscillation measurements are lacking. Here, we study the magnetic-field dependence of transport and thermodynamic properties of YbNi_{4}P_{2}. The Kondo effect is continuously suppressed, and additionally we identify nine Lifshitz transitions between 0.4 and 18 T. We analyze the transport coefficients in detail and identify the type of Lifshitz transitions as neck or void type to gain information on the Fermi surface of YbNi_{4}P_{2}. The large number of Lifshitz transitions observed within this small energy window is unprecedented and results from the particular flat renormalized band structure with strong 4f-electron character shaped by the Kondo lattice effect. PMID- 29341653 TI - Quantum Nonlinear Optics in Optomechanical Nanoscale Waveguides. AB - We show that strong nonlinearities at the few photon level can be achieved in optomechanical nanoscale waveguides. We consider the propagation of photons in cm scale one-dimensional nanophotonic structures where stimulated Brillouin scattering (SBS) is strongly enhanced by radiation pressure coupling. We introduce a configuration that allows slowing down photons by several orders of magnitude via SBS from sound waves using two pump fields. Slowly propagating photons can then experience strong nonlinear interactions through virtual off resonant exchange of dispersionless phonons. As a benchmark we identify requirements for achieving a large cross-phase modulation among two counterpropagating photons applicable for photonic quantum gates. Our results indicate that strongly nonlinear quantum optics is possible in continuum optomechanical systems realized in nanophotonic structures. PMID- 29341654 TI - Revealing Nonclassicality of Inaccessible Objects. AB - Some physical objects are hardly accessible to direct experimentation. It is then desirable to infer their properties based solely on the interactions they have with systems over which we have control. In this spirit, here we introduce schemes for assessing the nonclassicality of the inaccessible objects as characterized by quantum discord. We consider two probes individually interacting with the inaccessible object but not with each other. The schemes are based on monitoring entanglement dynamics between the probes. Our method is robust and experimentally friendly, as it allows the probes and the object to be open systems and makes no assumptions about the initial state, dimensionality of involved Hilbert spaces, and details of the probe-object Hamiltonian. We apply our scheme to a membrane-in-the-middle optomechanical system, to detect system environment correlations in open system dynamics as well as nonclassicality of the environment, and we foresee potential benefits for the inference of the nonclassical nature of gravity. PMID- 29341655 TI - Plasmons in Dimensionally Mismatched Coulomb Coupled Graphene Systems. AB - We calculate the plasmon dispersion relation for Coulomb coupled metallic armchair graphene nanoribbons and doped monolayer graphene. The crossing of the plasmon curves, which occurs for uncoupled 1D and 2D systems, is split by the interlayer Coulomb coupling into a lower and an upper plasmon branch. The upper branch exhibits an unusual behavior with end points at finite q. Accordingly, the structure factor shows either a single or a double peak behavior, depending on the plasmon wavelength. The new plasmon structure is relevant to recent experiments, its properties can be controlled by varying the system parameters and be used in plasmonic applications. PMID- 29341656 TI - Quantum Correlations in Nonlocal Boson Sampling. AB - Determination of the quantum nature of correlations between two spatially separated systems plays a crucial role in quantum information science. Of particular interest is the questions of if and how these correlations enable quantum information protocols to be more powerful. Here, we report on a distributed quantum computation protocol in which the input and output quantum states are considered to be classically correlated in quantum informatics. Nevertheless, we show that the correlations between the outcomes of the measurements on the output state cannot be efficiently simulated using classical algorithms. Crucially, at the same time, local measurement outcomes can be efficiently simulated on classical computers. We show that the only known classicality criterion violated by the input and output states in our protocol is the one used in quantum optics, namely, phase-space nonclassicality. As a result, we argue that the global phase-space nonclassicality inherent within the output state of our protocol represents true quantum correlations. PMID- 29341657 TI - Triple Junction at the Triple Point Resolved on the Individual Particle Level. AB - At the triple point of a repulsive screened Coulomb system, a fcc crystal, a bcc crystal, and a fluid phase coexist. At their intersection, these three phases form a liquid groove, the triple junction. Using confocal microscopy, we resolve the triple junction on a single-particle level in a model system of charged PMMA colloids in a nonpolar solvent. The groove is found to be extremely deep and the incommensurate solid-solid interface to be very broad. Thermal fluctuations hence appear to dominate the solid-solid interface. This indicates a very low interfacial energy. The fcc-bcc interfacial energy is quantitatively determined based on Young's equation and, indeed, it is only about 1.3 times higher than the fcc-fluid interfacial energy close to the triple point. PMID- 29341658 TI - Floquet Symmetry-Protected Topological Phases in Cold-Atom Systems. AB - We propose and analyze two distinct routes toward realizing interacting symmetry protected topological (SPT) phases via periodic driving. First, we demonstrate that a driven transverse-field Ising model can be used to engineer complex interactions which enable the emulation of an equilibrium SPT phase. This phase remains stable only within a parametric time scale controlled by the driving frequency, beyond which its topological features break down. To overcome this issue, we consider an alternate route based upon realizing an intrinsically Floquet SPT phase that does not have any equilibrium analog. In both cases, we show that disorder, leading to many-body localization, prevents runaway heating and enables the observation of coherent quantum dynamics at high energy densities. Furthermore, we clarify the distinction between the equilibrium and Floquet SPT phases by identifying a unique micromotion-based entanglement spectrum signature of the latter. Finally, we propose a unifying implementation in a one-dimensional chain of Rydberg-dressed atoms and show that protected edge modes are observable on realistic experimental time scales. PMID- 29341659 TI - New Boundary-Driven Twist States in Systems with Broken Spatial Inversion Symmetry. AB - A full description of a magnetic sample includes a correct treatment of the boundary conditions (BCs). This is in particular important in thin film systems, where even bulk properties might be modified by the properties of the boundary of the sample. We study generic ferromagnets with broken spatial inversion symmetry and derive the general micromagnetic BCs of a system with Dzyaloshinskii-Moriya interaction (DMI). We demonstrate that the BCs require the full tensorial structure of the third-rank DMI tensor and not just the antisymmetric part, which is usually taken into account. Specifically, we study systems with C_{infinityv} symmetry and explore the consequences of the DMI. Interestingly, we find that the DMI already in the simplest case of a ferromagnetic thin film leads to a purely boundary-driven magnetic twist state at the edges of the sample. The twist state represents a new type of DMI-induced spin structure, which is completely independent of the internal DMI field. We estimate the size of the texture induced magnetoresistance effect being in the range of that of domain walls. PMID- 29341660 TI - 2D Stress Tensor for 4D Gravity. AB - We use the subleading soft-graviton theorem to construct an operator T_{zz} whose insertion in the four-dimensional tree-level quantum gravity S matrix obeys the Virasoro-Ward identities of the energy momentum tensor of a two-dimensional conformal field theory (CFT_{2}). The celestial sphere at Minkowskian null infinity plays the role of the Euclidean sphere of the CFT_{2}, with the Lorentz group acting as the unbroken SL(2,C) subgroup. PMID- 29341661 TI - Entanglement Hamiltonians for Chiral Fermions with Zero Modes. AB - In this Letter, we study the effect of topological zero modes on entanglement Hamiltonians and the entropy of free chiral fermions in (1+1)D. We show how Riemann-Hilbert solutions combined with finite rank perturbation theory allow us to obtain exact expressions for entanglement Hamiltonians. In the absence of the zero mode, the resulting entanglement Hamiltonians consist of local and bilocal terms. In the periodic sector, the presence of a zero mode leads to an additional nonlocal contribution to the entanglement Hamiltonian. We derive an exact expression for this term and for the resulting change in the entanglement entropy. PMID- 29341662 TI - Reentrant Phase Diagram of Yb_{2}Ti_{2}O_{7} in a ?111? Magnetic Field. AB - We present a magnetic phase diagram of rare-earth pyrochlore Yb_{2}Ti_{2}O_{7} in a ?111? magnetic field. Using heat capacity, magnetization, and neutron scattering data, we show an unusual field dependence of a first-order phase boundary, wherein a small applied field increases the ordering temperature. The zero-field ground state has ferromagnetic domains, while the spins polarize along ?111? above 0.65 T. A classical Monte Carlo analysis of published Hamiltonians does account for the critical field in the low T limit. However, this analysis fails to account for the large bulge in the reentrant phase diagram, suggesting that either long-range interactions or quantum fluctuations govern low field properties. PMID- 29341663 TI - Conditional Hybrid Nonclassicality. AB - We derive and implement a general method to characterize the nonclassicality in compound discrete- and continuous-variable systems. For this purpose, we introduce the operational notion of conditional hybrid nonclassicality which relates to the ability to produce a nonclassical continuous-variable state by projecting onto a general superposition of discrete-variable subsystem. We discuss the importance of this form of quantumness in connection with interfaces for quantum communication. To verify the conditional hybrid nonclassicality, a matrix version of a nonclassicality quasiprobability is derived and its sampling approach is formulated. We experimentally generate an entangled, hybrid Schrodinger cat state, using a coherent photon-addition process acting on two temporal modes, and we directly sample its nonclassicality quasiprobability matrix. The introduced conditional quantum effects are certified with high statistical significance. PMID- 29341664 TI - Optimal Continuous Variable Quantum Teleportation with Limited Resources. AB - Given a certain amount of entanglement available as a resource, what is the most efficient way to accomplish a quantum task? We address this question in the relevant case of continuous variable quantum teleportation protocols implemented using two-mode Gaussian states with a limited degree of entanglement and energy. We first characterize the class of single-mode phase-insensitive Gaussian channels that can be simulated via a Braunstein-Kimble protocol with nonunit gain and minimum shared entanglement, showing that infinite energy is not necessary apart from the special case of the quantum limited attenuator. We also find that apart from the identity, all phase-insensitive Gaussian channels can be simulated through a two-mode squeezed state with finite energy, albeit with a larger entanglement. We then consider the problem of teleporting single-mode coherent states with Gaussian-distributed displacement in phase space. Performing a geometrical optimization over phase-insensitive Gaussian channels, we determine the maximum average teleportation fidelity achievable with any finite entanglement and for any realistically finite variance of the input distribution. PMID- 29341665 TI - Can Hail and Rain Nucleate Cloud Droplets? AB - We present results from moist convection in a mixture of pressurized sulfur hexafluoride (liquid and vapor), and helium (gas) to model the wet and dry components of the Earth's atmosphere. To allow for homogeneous nucleation, we operate the experiment close to critical conditions. We report on the nucleation of microdroplets in the wake of large cold liquid drops falling through the supersaturated atmosphere and show that the homogeneous nucleation is caused by isobaric cooling of the saturated sulfur hexafluoride vapor. Our results carry over to atmospheric clouds: falling hail and cold rain drops may enhance the heterogeneous nucleation of microdroplets in their wake under supersaturated atmospheric conditions. We also observed that under appropriate circumstances settling microdroplets form a rather stable horizontal cloud layer, which separates regions of super- and subcritical saturation. PMID- 29341666 TI - Mechanism behind Erosive Bursts In Porous Media. AB - Erosion and deposition during flow through porous media can lead to large erosive bursts that manifest as jumps in permeability and pressure loss. Here we reveal that the cause of these bursts is the reopening of clogged pores when the pressure difference between two opposite sites of the pore surpasses a certain threshold. We perform numerical simulations of flow through porous media and compare our predictions to experimental results, recovering with excellent agreement shape and power-law distribution of pressure loss jumps, and the behavior of the permeability jumps as a function of particle concentration. Furthermore, we find that erosive bursts only occur for pressure gradient thresholds within the range of two critical values, independent of how the flow is driven. Our findings provide a better understanding of sudden sand production in oil wells and breakthrough in filtration. PMID- 29341667 TI - Dark Kinetic Heating of Neutron Stars and an Infrared Window on WIMPs, SIMPs, and Pure Higgsinos. AB - We identify a largely model-independent signature of dark matter (DM) interactions with nucleons and electrons. DM in the local galactic halo, gravitationally accelerated to over half the speed of light, scatters against and deposits kinetic energy into neutron stars, heating them to infrared blackbody temperatures. The resulting radiation could potentially be detected by the James Webb Space Telescope, the Thirty Meter Telescope, or the European Extremely Large Telescope. This mechanism also produces optical emission from neutron stars in the galactic bulge, and x-ray emission near the galactic center because dark matter is denser in these regions. For GeV-PeV mass dark matter, dark kinetic heating would initially unmask any spin-independent or spin-dependent dark matter nucleon cross sections exceeding 2*10^{-45} cm^{2}, with improved sensitivity after more telescope exposure. For lighter-than-GeV dark matter, cross-section sensitivity scales inversely with dark matter mass because of Pauli blocking; for heavier-than-PeV dark matter, it scales linearly with mass as a result of needing multiple scatters for capture. Future observations of dark sector-warmed neutron stars could determine whether dark matter annihilates in or only kinetically heats neutron stars. Because inelastic interstate transitions of up to a few GeV would occur in relativistic scattering against nucleons, elusive inelastic dark matter like pure Higgsinos can also be discovered. PMID- 29341668 TI - Modular Invariance of Conformal Field Theory on S^{1}*S^{3} and Circle Fibrations. AB - I conjecture a high-temperature-low-temperature duality for conformal field theories defined on circle fibrations like S^{3} and its lens space family. The duality is an exchange between the thermal circle and the fiber circle in the limit where both are small. The conjecture is motivated by the fact that pi_{1}(S^{3}/Z_{p->infinity})=Z=pi_{1}(S^{1}*S^{2}) and the Gromov-Hausdorff distance between S^{3}/Z_{p->infinity} and S^{1}/Z_{p->infinity}*S^{2} vanishes. Several checks of the conjecture are provided: free fields, N=1 theories in four dimensions (which shows that the Di Pietro-Komargodski supersymmetric Cardy formula and its generalizations are given exactly by a supersymmetric Casimir energy), N=4 super Yang-Mills at strong coupling, and the six-dimensional N=(2,0) theory. For all examples considered, the duality is powerful enough to control the high-temperature asymptotics on the unlensed S^{3}, relating it to the Casimir energy on a highly lensed S^{3}. Such large-order quotients are more generally useful for studying quantum field theory on curved spacetimes. PMID- 29341669 TI - Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules. AB - Precision searches for time-reversal symmetry violating interactions in polar molecules are extremely sensitive probes of high energy physics beyond the standard model. To extend the reach of these probes into the PeV regime, long coherence times and large count rates are necessary. Recent advances in laser cooling of polar molecules offer one important tool-optical trapping. However, the types of molecules that have been laser cooled so far do not have the highly desirable combination of features for new physics searches, such as the ability to fully polarize and the existence of internal comagnetometer states. We show that by utilizing the internal degrees of freedom present only in molecules with at least three atoms, these features can be attained simultaneously with molecules that have simple structure and are amenable to laser cooling and trapping. PMID- 29341670 TI - Surface Polarization Effects on Ion-Containing Emulsions. AB - Surface polarization in ion-containing heterogeneous dielectric media such as cell media and emulsions is determined by and determines the positions of the ions. We compute the surface polarization self-consistently as the ions move and analyze their effects on the interactions between electro-neutral, ion-containing droplets using coarse-grained molecular dynamics simulations based on the true energy functional. For water droplets immersed in oil, the interdroplet interaction is attractive, and the surface polarization makes the major contribution. By contrast, for oil droplets in water, the ion-surface induced charge interaction is repulsive and counteracts the attraction between the ions, leading to a small attractive interaction between the droplets. This research improves our understanding of self-assembly in mixed phases such as metal extraction for recovering rare earth elements and nuclear waste as well as water purification. PMID- 29341671 TI - Ab initio Exchange-Correlation Free Energy of the Uniform Electron Gas at Warm Dense Matter Conditions. AB - In a recent Letter [T. Dornheim et al., Phys. Rev. Lett. 117, 156403 (2016)PRLTAO0031-900710.1103/PhysRevLett.117.156403], we presented the first quantum Monte Carlo (QMC) results for the warm dense electron gas in the thermodynamic limit. However, a complete parametrization of the exchange correlation free energy with respect to density, temperature, and spin polarization remained out of reach due to the absence of (i) accurate QMC results below theta=k_{B}T/E_{F}=0.5 and (ii) QMC results for spin polarizations different from the paramagnetic case. Here we overcome both remaining limitations. By closing the gap to the ground state and by performing extensive QMC simulations for different spin polarizations, we are able to obtain the first completely ab initio exchange-correlation free energy functional; the accuracy achieved is an unprecedented ~0.3%. This also allows us to quantify the accuracy and systematic errors of various previous approximate functionals. PMID- 29341672 TI - Helicase Stepping Investigated with One-Nucleotide Resolution Fluorescence Resonance Energy Transfer. AB - Single-molecule Forster resonance energy transfer is widely applied to study helicases by detecting distance changes between a pair of dyes anchored to overhangs of a forked DNA. However, it has been lacking single-base pair (1-bp) resolution required for revealing stepping kinetics of helicases. We designed a nanotensioner in which a short DNA is bent to exert force on the overhangs, just as in optical or magnetic tweezers. The strategy improved the resolution of Forster resonance energy transfer to 0.5 bp, high enough to uncover differences in DNA unwinding by yeast Pif1 and E. coli RecQ whose unwinding behaviors cannot be differentiated by currently practiced methods. We found that Pif1 exhibits 1 bp-stepping kinetics, while RecQ breaks 1 bp at a time but sequesters the nascent nucleotides and releases them randomly. The high-resolution data allowed us to propose a three-parameter model to quantitatively interpret the apparently different unwinding behaviors of the two helicases which belong to two superfamilies. PMID- 29341673 TI - Chiral Spin Mode on the Surface of a Topological Insulator. AB - Using polarization-resolved resonant Raman spectroscopy, we explore collective spin excitations of the chiral surface states in a three dimensional topological insulator, Bi_{2}Se_{3}. We observe a sharp peak at 150 meV in the pseudovector A_{2} symmetry channel of the Raman spectra. By comparing the data with calculations, we identify this peak as the transverse collective spin mode of surface Dirac fermions. This mode, unlike a Dirac plasmon or a surface plasmon in the charge sector of excitations, is analogous to a spin wave in a partially polarized Fermi liquid, with spin-orbit coupling playing the role of an effective magnetic field. PMID- 29341674 TI - Stochastic and Resolvable Gravitational Waves from Ultralight Bosons. AB - Ultralight scalar fields around spinning black holes can trigger superradiant instabilities, forming a long-lived bosonic condensate outside the horizon. We use numerical solutions of the perturbed field equations and astrophysical models of massive and stellar-mass black hole populations to compute, for the first time, the stochastic gravitational-wave background from these sources. In optimistic scenarios the background is observable by Advanced LIGO and LISA for field masses m_{s} in the range ~[2*10^{-13},10^{-12}] and ~5*[10^{-19},10^{-16}] eV, respectively, and it can affect the detectability of resolvable sources. Our estimates suggest that an analysis of the stochastic background limits from LIGO O1 might already be used to marginally exclude axions with mass ~10^{-12.5} eV. Semicoherent searches with Advanced LIGO (LISA) should detect ~15(5) to 200(40) resolvable sources for scalar field masses 3*10^{-13} (10^{-17}) eV. LISA measurements of massive BH spins could either rule out bosons in the range ~[10^{ 18},2*10^{-13}] eV, or measure m_{s} with 10% accuracy in the range ~[10^{ 17},10^{-13}] eV. PMID- 29341675 TI - Many-Molecule Reaction Triggered by a Single Photon in Polaritonic Chemistry. AB - The second law of photochemistry states that, in most cases, no more than one molecule is activated for an excited-state reaction for each photon absorbed by a collection of molecules. In this Letter, we demonstrate that it is possible to trigger a many-molecule reaction using only one photon by strongly coupling the molecular ensemble to a confined light mode. The collective nature of the resulting hybrid states of the system (the so-called polaritons) leads to the formation of a polaritonic "supermolecule" involving the degrees of freedom of all molecules, opening a reaction path on which all involved molecules undergo a chemical transformation. We theoretically investigate the system conditions for this effect to take place and be enhanced. PMID- 29341676 TI - Excess Hydrogen Bond at the Ice-Vapor Interface around 200 K. AB - Phase-resolved sum-frequency generation measurements combined with molecular dynamics simulations are employed to study the effect of temperature on the molecular arrangement of water on the basal face of ice. The topmost monolayer, interrogated through its nonhydrogen-bonded, free O-H stretch peak, exhibits a maximum in surface H-bond density around 200 K. This maximum results from two competing effects: above 200 K, thermal fluctuations cause the breaking of H bonds; below 200 K, the formation of bulklike crystalline interfacial structures leads to H-bond breaking. Knowledge of the surface structure of ice is critical for understanding reactions occurring on ice surfaces and ice nucleation. PMID- 29341677 TI - Current-Nonlinear Hall Effect and Spin-Orbit Torque Magnetization Switching in a Magnetic Topological Insulator. AB - The current-nonlinear Hall effect or second harmonic Hall voltage is widely used as one of the methods for estimating charge-spin conversion efficiency, which is attributed to the magnetization oscillation by spin-orbit torque (SOT). Here, we argue the second harmonic Hall voltage under a large in-plane magnetic field with an in-plane magnetization configuration in magnetic-nonmagnetic topological insulator (TI) heterostructures, Cr_{x}(Bi_{1-y}Sb_{y})_{2-x}Te_{3}/(Bi_{1 y}Sb_{y})_{2}Te_{3}, where it is clearly shown that the large second harmonic voltage is governed not by SOT but mainly by asymmetric magnon scattering without macroscopic magnetization oscillation. Thus, this method does not allow an accurate estimation of charge-spin conversion efficiency in TI. Instead, the SOT contribution is exemplified by current pulse induced nonvolatile magnetization switching, which is realized with a current density of 2.5*10^{10} A m^{-2}, showing its potential as a spintronic material. PMID- 29341678 TI - Erratum: Distinct Turbulence Saturation Regimes in Stellarators [Phys. Rev. Lett. 118, 105002 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.118.105002. PMID- 29341679 TI - Detection of the Spin-Chemical Potential in Topological Insulators Using Spin Polarized Four-Probe STM. AB - We demonstrate a new method for the detection of the spin-chemical potential in topological insulators using spin-polarized four-probe scanning tunneling microscopy on in situ cleaved Bi_{2}Te_{2}Se surfaces. Two-dimensional (2D) surface and 3D bulk conductions are separated quantitatively via variable probe spacing measurements, enabling the isolation of the nonvanishing spin-dependent electrochemical potential from the Ohmic contribution. This component is identified as the spin-chemical potential arising from the 2D charge current through the spin momentum locked topological surface states (TSS). This method provides a direct measurement of spin current generation efficiency and opens a new avenue to access the intrinsic spin transport associated with pristine TSS. PMID- 29341681 TI - Determining Quiescent Colloidal Suspension Viscosities Using the Green-Kubo Relation and Image-Based Stress Measurements. AB - By combining confocal microscopy and stress assessment from local structural anisotropy, we directly measure stresses in 3D quiescent colloidal liquids. Our noninvasive and nonperturbative method allows us to measure forces ?50 fN with a small and tunable probing volume, enabling us to resolve the stress fluctuations arising from particle thermal motions. We use the Green-Kubo relation to relate these measured stress fluctuations to the bulk Brownian viscosity at different volume fractions, comparing against simulations and conventional rheometry measurements. We find that the Green-Kubo analysis gives excellent agreement with these prior results, suggesting that similar methods could be applied to investigations of local flow properties in many poorly understood far-from equilibrium systems, including suspensions that are glassy, strongly sheared, or highly confined. PMID- 29341680 TI - Ultimate Stable Underwater Superhydrophobic State. AB - Underwater metastability hinders the durable application of superhydrophobic surfaces. In this work, through thermodynamic analysis, we theoretically demonstrate the existence of an ultimate stable state on underwater superhydrophobic surfaces. Such a state is achieved by the synergy of mechanical balance and chemical diffusion equilibrium across the entrapped liquid-air interfaces. By using confocal microscopy, we in situ examine the ultimate stable states on structured hydrophobic surfaces patterned with cylindrical micropores in different pressure and flow conditions. The equilibrium morphology of the meniscus is tuned by the dissolved gas saturation degree within a critical range at a given liquid pressure. Moreover, with fresh lotus leaves, we prove that the ultimate stable state can also be realized on randomly rough superhydrophobic surfaces. The finding here paves the way for applying superhydrophobic surfaces in environments with different liquid pressure and flow conditions. PMID- 29341682 TI - Gate-Controlled Spin-Valley Locking of Resident Carriers in WSe_{2} Monolayers. AB - Using time-resolved Kerr rotation, we measure the spin-valley dynamics of resident electrons and holes in single charge-tunable monolayers of the archetypal transition-metal dichalcogenide (TMD) semiconductor WSe_{2}. In the n type regime, we observe long (~130 ns) polarization relaxation of electrons that is sensitive to in-plane magnetic fields B_{y}, indicating spin relaxation. In marked contrast, extraordinarily long (~2 MUs) polarization relaxation of holes is revealed in the p-type regime, which is unaffected by B_{y}, directly confirming long-standing expectations of strong spin-valley locking of holes in the valence band of monolayer TMDs. Supported by continuous-wave Kerr spectroscopy and Hanle measurements, these studies provide a unified picture of carrier polarization dynamics in monolayer TMDs, which can guide design principles for future valleytronic devices. PMID- 29341683 TI - Theory of Thermal Relaxation of Electrons in Semiconductors. AB - We compute the transient dynamics of phonons in contact with high energy "hot" charge carriers in 12 polar and nonpolar semiconductors, using a first-principles Boltzmann transport framework. For most materials, we find that the decay in electronic temperature departs significantly from a single-exponential model at times ranging from 1 to 15 ps after electronic excitation, a phenomenon concomitant with the appearance of nonthermal vibrational modes. We demonstrate that these effects result from slow thermalization within the phonon subsystem, caused by the large heterogeneity in the time scales of electron-phonon and phonon-phonon interactions in these materials. We propose a generalized two temperature model accounting for phonon thermalization as a limiting step of electron-phonon thermalization, which captures the full thermal relaxation of hot electrons and holes in semiconductors. A direct consequence of our findings is that, for semiconductors, information about the spectral distribution of electron phonon and phonon-phonon coupling can be extracted from the multiexponential behavior of the electronic temperature. PMID- 29341684 TI - First Simultaneous Extraction of Spin-Dependent Parton Distributions and Fragmentation Functions from a Global QCD Analysis. AB - We perform the first global QCD analysis of polarized inclusive and semi inclusive deep-inelastic scattering and single-inclusive e^{+}e^{-} annihilation data, simultaneously fitting the parton distribution and fragmentation functions using the iterative Monte Carlo method. Without imposing SU(3) symmetry relations, we find the strange polarization to be very small, consistent with zero for both inclusive and semi-inclusive data, which provides a resolution to the strange quark polarization puzzle. The combined analysis also allows the direct extraction from data of the isovector and octet axial charges, and is consistent with a small SU(2) flavor asymmetry in the polarized sea. PMID- 29341685 TI - Intermittent Granular Dynamics at a Seismogenic Plate Boundary. AB - Earthquakes at seismogenic plate boundaries are a response to the differential motions of tectonic blocks embedded within a geometrically complex network of branching and coalescing faults. Elastic strain is accumulated at a slow strain rate on the order of 10^{-15} s^{-1}, and released intermittently at intervals >100 yr, in the form of rapid (seconds to minutes) coseismic ruptures. The development of macroscopic models of quasistatic planar tectonic dynamics at these plate boundaries has remained challenging due to uncertainty with regard to the spatial and kinematic complexity of fault system behaviors. The characteristic length scale of kinematically distinct tectonic structures is particularly poorly constrained. Here, we analyze fluctuations in Global Positioning System observations of interseismic motion from the southern California plate boundary, identifying heavy-tailed scaling behavior. Namely, we show that, consistent with findings for slowly sheared granular media, the distribution of velocity fluctuations deviates from a Gaussian, exhibiting broad tails, and the correlation function decays as a stretched exponential. This suggests that the plate boundary can be understood as a densely packed granular medium, predicting a characteristic tectonic length scale of 91+/-20 km, here representing the characteristic size of tectonic blocks in the southern California fault network, and relating the characteristic duration and recurrence interval of earthquakes, with the observed sheared strain rate, and the nanosecond value for the crack tip evolution time scale. Within a granular description, fault and blocks systems may rapidly rearrange the distribution of forces within them, driving a mixture of transient and intermittent fault slip behaviors over tectonic time scales. PMID- 29341686 TI - Nonequilibrium Chromosome Looping via Molecular Slip Links. AB - We propose a model for the formation of chromatin loops based on the diffusive sliding of molecular slip links. These mimic the behavior of molecules like cohesin, which, along with the CTCF protein, stabilize loops which contribute to organizing the genome. By combining 3D Brownian dynamics simulations and 1D exactly solvable nonequilibrium models, we show that diffusive sliding is sufficient to account for the strong bias in favor of convergent CTCF-mediated chromosome loops observed experimentally. We also find that the diffusive motion of multiple slip links along chromatin is rectified by an intriguing ratchet effect that arises if slip links bind to the chromatin at a preferred "loading site." This emergent collective behavior favors the extrusion of loops which are much larger than the ones formed by single slip links. PMID- 29341687 TI - Maximally Symmetric Composite Higgs Models. AB - Maximal symmetry is a novel tool for composite pseudo Goldstone boson Higgs models: it is a remnant of an enhanced global symmetry of the composite fermion sector involving a twisting with the Higgs field. Maximal symmetry has far reaching consequences: it ensures that the Higgs potential is finite and fully calculable, and also minimizes the tuning. We present a detailed analysis of the maximally symmetric SO(5)/SO(4) model and comment on its observational consequences. PMID- 29341688 TI - What Randomized Benchmarking Actually Measures. AB - Randomized benchmarking (RB) is widely used to measure an error rate of a set of quantum gates, by performing random circuits that would do nothing if the gates were perfect. In the limit of no finite-sampling error, the exponential decay rate of the observable survival probabilities, versus circuit length, yields a single error metric r. For Clifford gates with arbitrary small errors described by process matrices, r was believed to reliably correspond to the mean, over all Clifford gates, of the average gate infidelity between the imperfect gates and their ideal counterparts. We show that this quantity is not a well-defined property of a physical gate set. It depends on the representations used for the imperfect and ideal gates, and the variant typically computed in the literature can differ from r by orders of magnitude. We present new theories of the RB decay that are accurate for all small errors describable by process matrices, and show that the RB decay curve is a simple exponential for all such errors. These theories allow explicit computation of the error rate that RB measures (r), but as far as we can tell it does not correspond to the infidelity of a physically allowed (completely positive) representation of the imperfect gates. PMID- 29341689 TI - Prediction of Triple Point Fermions in Simple Half-Heusler Topological Insulators. AB - We predict the existence of triple point fermions in the band structure of several half-Heusler topological insulators by ab initio calculations and the Kane model. We find that many half-Heusler compounds exhibit multiple triple points along four independent C_{3} axes, through which the doubly degenerate conduction bands and the nondegenerate valence band cross each other linearly nearby the Fermi energy. When projected from the bulk to the (111) surface, most of these triple points are located far away from the surface Gamma[over -] point, as distinct from previously reported triple point fermion candidates. These isolated triple points give rise to Fermi arcs on the surface, that can be readily detected by photoemission spectroscopy or scanning tunneling spectroscopy. PMID- 29341690 TI - Anomalous Nonlocal Resistance and Spin-Charge Conversion Mechanisms in Two Dimensional Metals. AB - We uncover two anomalous features in the nonlocal transport behavior of two dimensional metallic materials with spin-orbit coupling. First, the nonlocal resistance can have negative values and oscillate with distance, even in the absence of a magnetic field. Second, the oscillations of the nonlocal resistance under an applied in-plane magnetic field (the Hanle effect) can be asymmetric under field reversal. Both features are produced by direct magnetoelectric coupling, which is possible in materials with broken inversion symmetry but was not included in previous spin-diffusion theories of nonlocal transport. These effects can be used to identify the relative contributions of different spin charge conversion mechanisms. They should be observable in adatom-functionalized graphene, and they may provide the reason for discrepancies in recent nonlocal transport experiments on graphene. PMID- 29341691 TI - Dissipative Effects on Inertial-Range Statistics at High Reynolds Numbers. AB - Using the unique capabilities of the Variable Density Turbulence Tunnel at the Max Planck Institute for Dynamics and Self-Organization, Gottingen, we report experimental measurements in classical grid turbulence that uncover oscillations of the velocity structure functions in the inertial range. This was made possible by measuring extremely long time series of up to 10^{10} samples of the turbulent fluctuating velocity, which corresponds to O(10^{7}) integral length scales. The measurements were conducted in a well-controlled environment at a wide range of high Reynolds numbers from R_{lambda}=110 up to R_{lambda}=1600, using both traditional hot-wire probes as well as the nanoscale thermal anemometry probe developed at Princeton University. An implication of the observed oscillations is that dissipation influences the inertial-range statistics of turbulent flows at scales significantly larger than predicted by current models and theories. PMID- 29341692 TI - Nontrivial Chern Numbers in Three-Terminal Josephson Junctions. AB - Recently, it has been predicted that the Andreev bound state spectrum of four terminal Josephson junctions may possess zero-energy Weyl singularities. Using one superconducting phase as a control parameter, these singularities are associated with topological transitions between time-reversal symmetry broken phases with different Chern numbers. Here we show that such topological transitions may also be tuned with a magnetic flux through the junction area in a three-terminal geometry. PMID- 29341693 TI - Erratum: Evidence for a Phase Transition in Silicate Melt at Extreme Pressure and Temperature Conditions [Phys. Rev. Lett. 108, 065701 (2012)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.108.065701. PMID- 29341694 TI - Publisher's Note: Solar Irradiance Variability is Caused by the Magnetic Activity on the Solar Surface [Phys. Rev. Lett. 119, 091102 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevLett.119.091102. PMID- 29341695 TI - Scaling of Majorana Zero-Bias Conductance Peaks. AB - We report an experimental study of the scaling of zero-bias conductance peaks compatible with Majorana zero modes as a function of magnetic field, tunnel coupling, and temperature in one-dimensional structures fabricated from an epitaxial semiconductor-superconductor heterostructure. Results are consistent with theory, including a peak conductance that is proportional to tunnel coupling, saturates at 2e^{2}/h, decreases as expected with field-dependent gap, and collapses onto a simple scaling function in the dimensionless ratio of temperature and tunnel coupling. PMID- 29341696 TI - Coherent Beam-Beam Instability in Collisions with a Large Crossing Angle. AB - In recent years the "crab-waist collision" scheme [P. Raimondi, Proceedings of 2nd SuperB Workshop, Frascati, 2006.; M. Zobov et al., Phys. Rev. Lett. 104, 174801 (2010)PRLTAO0031-900710.1103/PhysRevLett.104.174801] has become popular for circular e^{+} e^{-} colliders. The designs of several future colliders are based on this scheme. So far the beam-beam effects for collisions under a large crossing angle with or without crab waist were mostly studied using weak-strong simulations. We present here strong-strong simulations showing a novel strong coherent head-tail instability, which can limit the performance of proposed future colliders. We explain the underlying instability mechanism starting from the "cross-wake force" induced by the beam-beam interaction. Using this beam-beam wake, the beam-beam head tail modes are studied by an eigenmode analysis. The instability may affect all collider designs based on the crab-waist scheme. We suggest an experimental verification at SuperKEKB during its commissioning phase II. PMID- 29341697 TI - Large-Scale Structure and Hyperuniformity of Amorphous Ices. AB - We investigate the large-scale structure of amorphous ices and transitions between their different forms by quantifying their large-scale density fluctuations. Specifically, we simulate the isothermal compression of low-density amorphous ice (LDA) and hexagonal ice to produce high-density amorphous ice (HDA). Both HDA and LDA are nearly hyperuniform; i.e., they are characterized by an anomalous suppression of large-scale density fluctuations. By contrast, in correspondence with the nonequilibrium phase transitions to HDA, the presence of structural heterogeneities strongly suppresses the hyperuniformity and the system becomes hyposurficial (devoid of "surface-area fluctuations"). Our investigation challenges the largely accepted "frozen-liquid" picture, which views glasses as structurally arrested liquids. Beyond implications for water, our findings enrich our understanding of pressure-induced structural transformations in glasses. PMID- 29341698 TI - General Linearized Theory of Quantum Fluctuations around Arbitrary Limit Cycles. AB - The theory of Gaussian quantum fluctuations around classical steady states in nonlinear quantum-optical systems (also known as standard linearization) is a cornerstone for the analysis of such systems. Its simplicity, together with its accuracy far from critical points or situations where the nonlinearity reaches the strong coupling regime, has turned it into a widespread technique, being the first method of choice in most works on the subject. However, such a technique finds strong practical and conceptual complications when one tries to apply it to situations in which the classical long-time solution is time dependent, a most prominent example being spontaneous limit-cycle formation. Here, we introduce a linearization scheme adapted to such situations, using the driven Van der Pol oscillator as a test bed for the method, which allows us to compare it with full numerical simulations. On a conceptual level, the scheme relies on the connection between the emergence of limit cycles and the spontaneous breaking of the symmetry under temporal translations. On the practical side, the method keeps the simplicity and linear scaling with the size of the problem (number of modes) characteristic of standard linearization, making it applicable to large (many body) systems. PMID- 29341699 TI - Emission of Nonclassical Radiation by Inelastic Cooper Pair Tunneling. AB - We show that a properly dc-biased Josephson junction in series with two microwave resonators of different frequencies emits photon pairs in the resonators. By measuring auto- and intercorrelations of the power leaking out of the resonators, we demonstrate two-mode amplitude squeezing below the classical limit. This nonclassical microwave light emission is found to be in quantitative agreement with our theoretical predictions, up to an emission rate of 2 billion photon pairs per second. PMID- 29341700 TI - Optimal Measurements for Simultaneous Quantum Estimation of Multiple Phases. AB - A quantum theory of multiphase estimation is crucial for quantum-enhanced sensing and imaging and may link quantum metrology to more complex quantum computation and communication protocols. In this Letter, we tackle one of the key difficulties of multiphase estimation: obtaining a measurement which saturates the fundamental sensitivity bounds. We derive necessary and sufficient conditions for projective measurements acting on pure states to saturate the ultimate theoretical bound on precision given by the quantum Fisher information matrix. We apply our theory to the specific example of interferometric phase estimation using photon number measurements, a convenient choice in the laboratory. Our results thus introduce concepts and methods relevant to the future theoretical and experimental development of multiparameter estimation. PMID- 29341701 TI - 3D Quantum Hall Effect of Fermi Arcs in Topological Semimetals. AB - The quantum Hall effect is usually observed in 2D systems. We show that the Fermi arcs can give rise to a distinctive 3D quantum Hall effect in topological semimetals. Because of the topological constraint, the Fermi arc at a single surface has an open Fermi surface, which cannot host the quantum Hall effect. Via a "wormhole" tunneling assisted by the Weyl nodes, the Fermi arcs at opposite surfaces can form a complete Fermi loop and support the quantum Hall effect. The edge states of the Fermi arcs show a unique 3D distribution, giving an example of (d-2)-dimensional boundary states. This is distinctly different from the surface state quantum Hall effect from a single surface of topological insulator. As the Fermi energy sweeps through the Weyl nodes, the sheet Hall conductivity evolves from the 1/B dependence to quantized plateaus at the Weyl nodes. This behavior can be realized by tuning gate voltages in a slab of topological semimetal, such as the TaAs family, Cd_{3}As_{2}, or Na_{3}Bi. This work will be instructive not only for searching transport signatures of the Fermi arcs but also for exploring novel electron gases in other topological phases of matter. PMID- 29341702 TI - Kinetic Energy of a Trapped Fermi Gas at Finite Temperature. AB - We study the statistics of the kinetic (or, equivalently, potential) energy for N noninteracting fermions in a 1d harmonic trap of frequency omega at finite temperature T. Remarkably, we find an exact solution for the full distribution of the kinetic energy, at any temperature T and for any N, using a nontrivial mapping to an integrable Calogero-Moser-Sutherland model. As a function of temperature T and for large N, we identify (i) a quantum regime, for T~homega, where quantum fluctuations dominate and (ii) a thermal regime, for T~Nhomega, governed by thermal fluctuations. We show how the mean and the variance as well as the large deviation function associated with the distribution of the kinetic energy cross over from the quantum to the thermal regime as T increases. PMID- 29341703 TI - Negative Landau Damping in Bilayer Graphene. AB - We theoretically demonstrate that a system formed by two coupled graphene sheets enables a negative damping regime wherein graphene plasmons are pumped by a direct current. This effect is triggered by electrons drifting through one of the graphene sheets and leads to wave instabilities and a spontaneous light emission (spasing) in the midinfrared range. It is shown that there is a deep link between the drift-induced instabilities and wave instabilities in moving media, as both result from the hybridization of oscillators with oppositely signed frequencies. With a thickness of a few nanometers and wide spectral tunability, the proposed structure may find interesting applications in nanophotonic circuitry as an on chip light source. PMID- 29341704 TI - Anomaly Indicators for Time-Reversal Symmetric Topological Orders. AB - Some time-reversal symmetric topological orders are anomalous in that they cannot be realized in strictly two-dimensional systems; instead, they can only be realized on the surface of three-dimensional symmetry-protected topological phases. We propose two quantities, which we call anomaly indicators, that can detect if a time-reversal symmetric topological order is anomalous in this sense. Both anomaly indicators are expressed in terms of the quantum dimensions, topological spins, and time-reversal properties of the anyons in the given topological order. The first indicator, eta_{2}, applies to bosonic systems while the second indicator, eta_{f}, applies to fermionic systems in the DIII class. We conjecture that eta_{2}, together with a previously known indicator eta_{1}, can detect the two known Z_{2} anomalies in the bosonic case, while eta_{f} can detect the Z_{16} anomaly in the fermionic case. PMID- 29341705 TI - Electromagnetic Charge Radius of the Pion at High Precision. AB - We present a determination of the pion charge radius from high precision data on the pion vector form factor from both timelike and spacelike regions, using a novel formalism based on analyticity and unitarity. At low energies, instead of the poorly known modulus of the form factor, we use its phase, known with high accuracy from Roy equations for pipi elastic scattering via the Fermi-Watson theorem. We use also the values of the modulus at several higher timelike energies, where the data from e^{+}e^{-} annihilation and tau decay are mutually consistent, as well as the most recent measurements at spacelike momenta. The experimental uncertainties are implemented by Monte Carlo simulations. The results, which do not rely on a specific parametrization, are optimal for the given input information and do not depend on the unknown phase of the form factor above the first inelastic threshold. Our prediction for the charge radius of the pion is r_{pi}=(0.657+/-0.003) fm, which amounts to an increase in precision by a factor of about 2.7 compared to the Particle Data Group average. PMID- 29341706 TI - Optical Force Enhancement Using an Imaginary Vector Potential for Photons. AB - The enhancement of optical forces has enabled a variety of technological applications that rely on the optical control of small objects and devices. Unfortunately, optical forces are still too small for the convenient actuation of integrated switches and waveguide couplers. Here we show how the optical gradient force can be enhanced by an order of magnitude by making use of gauge materials inside two evanescently coupled waveguides. To this end, the gauge materials inside the cores should emulate imaginary vector potentials for photons pointing perpendicularly to the waveguide plane. Depending on the relative orientation of the vector potentials in neighboring waveguides, i.e., pointing away from or towards each other, the conventional attractive force due to an even mode profile may be enhanced, suppressed, or may even become repulsive. This and other new features indicate that the implementation of complex-valued vector potentials with non-Hermitian waveguide cores may further enhance our control over mode profiles and the associated optical forces. PMID- 29341707 TI - Anomalous Acoustic Plasmon Mode from Topologically Protected States. AB - Plasmons, the collective excitations of electrons in the bulk or at the surface, play an important role in the properties of materials, and have generated the field of "plasmonics." We report the observation of a highly unusual acoustic plasmon mode on the surface of a three-dimensional topological insulator (TI) Bi_{2}Se_{3}, using momentum resolved inelastic electron scattering. In sharp contrast to ordinary plasmon modes, this mode exhibits almost linear dispersion into the second Brillouin zone and remains prominent with remarkably weak damping not seen in any other systems. This behavior must be associated with the inherent robustness of the electrons in the TI surface state, so that not only the surface Dirac states but also their collective excitations are topologically protected. On the other hand, this mode has much smaller energy dispersion than expected from a continuous media excitation picture, which can be attributed to the strong coupling with surface phonons. PMID- 29341708 TI - High-Precision Probe of the Fully Sequential Decay Width of the Hoyle State in ^{12}C. AB - The decay path of the Hoyle state in ^{12}C (E_{x}=7.654 MeV) has been studied with the ^{14}N(d,alpha_{2})^{12}C(7.654) reaction induced at 10.5 MeV. High resolution invariant mass spectroscopy techniques have allowed us to unambiguously disentangle direct and sequential decays of the state passing through the ground state of ^{8}Be. Thanks to the almost total absence of background and the attained resolution, a fully sequential decay contribution to the width of the state has been observed. The direct decay width is negligible, with an upper limit of 0.043% (95% C.L.). The precision of this result is about a factor 5 higher than previous studies. This has significant implications on nuclear structure, as it provides constraints to 3alpha cluster model calculations, where higher precision limits are needed. PMID- 29341709 TI - Probing Primordial Black Hole Dark Matter with Gravitational Waves. AB - Primordial black holes (PBHs) have long been suggested as a candidate for making up some or all of the dark matter in the Universe. Most of the theoretically possible mass range for PBH dark matter has been ruled out with various null observations of expected signatures of their interaction with standard astrophysical objects. However, current constraints are significantly less robust in the 20 M_{?}?M_{PBH}?100 M_{?} mass window, which has received much attention recently, following the detection of merging black holes with estimated masses of ~30 M_{?} by LIGO and the suggestion that these could be black holes formed in the early Universe. We consider the potential of advanced LIGO (aLIGO) operating at design sensitivity to probe this mass range by looking for peaks in the mass spectrum of detected events. To quantify the background, which is due to black holes that are formed from dying stars, we model the shape of the stellar black-hole mass function and calibrate its amplitude to match the O1 results. Adopting very conservative assumptions about the PBH and stellar-black-hole merger rates, we show that ~5 yr of aLIGO data can be used to detect a contribution of >20 M_{?} PBHs to dark matter down to f_{PBH}<0.5 at >99.9% confidence level. Combined with other probes that already suggest tension with f_{PBH}=1, the obtainable independent limits from aLIGO will thus enable a firm test of the scenario that PBHs make up all of dark matter. PMID- 29341710 TI - Vibrational Action Spectroscopy of Solids: New Surface-Sensitive Technique. AB - Vibrational action spectroscopy employing infrared radiation from a free-electron laser has been successfully used for many years to study the vibrational and structural properties of gas phase aggregates. Despite the high sensitivity of this method no relevant studies have yet been conducted for solid sample surfaces. We have set up an experiment for the application of this method to such targets, using infrared light from the free-electron laser of the Fritz Haber Institute. In this Letter, we present first results of this technique with adsorbed argon and neon atoms as messengers. We were able to detect surface located vibrations of a thin V_{2}O_{3}(0001) film on Au(111) as well as adsorbate vibrations, demonstrating that this method is highly surface sensitive. We consider that the dominant channel for desorption of the messenger atoms is direct inharmonic vibrational coupling, which is essentially insensitive to subsurface or bulk vibrations. Another channel is thermal desorption due to sample heating by absorption of infrared light. The high surface sensitivity of the nonthermal channel and its insensitivity to subsurface modes makes this technique an ideal tool for the study of surface-located vibrations. PMID- 29341711 TI - Macroscopic Polarization from Antiferrodistortive Cycloids in Ferroelastic SrTiO_{3}. AB - Based on a first-principles based multiscale approach, we study the polarity P of ferroelastic twin walls in SrTiO_{3}. In addition to flexoelectricity, which was pointed out before, we identify two new mechanisms that crucially contribute to P: a direct "rotopolar" coupling to the gradients of the antiferrodistortive oxygen tilts, and a trilinear coupling that is mediated by the antiferroelectric displacement of the Ti atoms. Remarkably, the rotopolar coupling presents a strong analogy to the mechanism that generates a spontaneous polarization in cycloidal magnets. We show how this similarity allows for a breakdown of macroscopic inversion symmetry (and therefore a macroscopic polarization) in a periodic sequence of parallel twins. These results open new avenues towards engineering pyroelectricity or piezoelectricity in nominally nonpolar ferroic materials. PMID- 29341712 TI - Spatial Multiplexing of Atom-Photon Entanglement Sources using Feedforward Control and Switching Networks. AB - The light-matter quantum interface that can create quantum correlations or entanglement between a photon and one atomic collective excitation is a fundamental building block for a quantum repeater. The intrinsic limit is that the probability of preparing such nonclassical atom-photon correlations has to be kept low in order to suppress multiexcitation. To enhance this probability without introducing multiexcitation errors, a promising scheme is to apply multimode memories to the interface. Significant progress has been made in temporal, spectral, and spatial multiplexing memories, but the enhanced probability for generating the entangled atom-photon pair has not been experimentally realized. Here, by using six spin-wave-photon entanglement sources, a switching network, and feedforward control, we build a multiplexed light-matter interface and then demonstrate a ~sixfold (~fourfold) probability increase in generating entangled atom-photon (photon-photon) pairs. The measured compositive Bell parameter for the multiplexed interface is 2.49+/-0.03 combined with a memory lifetime of up to ~51 MUs. PMID- 29341713 TI - Field-Induced Instability of a Gapless Spin Liquid with a Spinon Fermi Surface. AB - The ground state of the quantum kagome antiferromagnet Zn-brochantite, ZnCu_{3}(OH)_{6}SO_{4}, which is one of only a few known spin-liquid (SL) realizations in two or three dimensions, has been described as a gapless SL with a spinon Fermi surface. Employing nuclear magnetic resonance in a broad magnetic field range down to millikelvin temperatures, we show that in applied magnetic fields this enigmatic state is intrinsically unstable against a SL with a full or a partial gap. A similar instability of the gapless Fermi-surface SL was previously encountered in an organic triangular-lattice antiferromagnet, suggesting a common destabilization mechanism that most likely arises from spinon pairing. A salient property of this instability is that an infinitesimal field suffices to induce it, as predicted theoretically for some other types of gapless SLs. PMID- 29341714 TI - Kinetically Controlled Two-Step Amorphization and Amorphous-Amorphous Transition in Ice. AB - We report the results of in situ structural characterization of the amorphization of crystalline ice Ih under compression and the relaxation of high-density amorphous (HDA) ice under decompression at temperatures between 96 and 160 K by synchrotron x-ray diffraction. The results show that ice Ih transforms to an intermediate crystalline phase at 100 K prior to complete amorphization, which is supported by molecular dynamics calculations. The phase transition pathways show clear temperature dependence: direct amorphization without an intermediate phase is observed at 133 K, while at 145 K a direct Ih-to-IX transformation is observed; decompression of HDA shows a transition to low-density amorphous ice at 96 K and ~1 Pa, to ice Ic at 135 K and to ice IX at 145 K. These observations show that the amorphization of compressed ice Ih and the recrystallization of decompressed HDA are strongly dependent on temperature and controlled by kinetic barriers. Pressure-induced amorphous ice is an intermediate state in the phase transition from the connected H-bond water network in low pressure ices to the independent and interpenetrating H-bond network of high-pressure ices. PMID- 29341715 TI - Potential Energy Surface Reconstruction and Lifetime Determination of Molecular Double-Core-Hole States in the Hard X-Ray Regime. AB - A combination of resonant inelastic x-ray scattering and resonant Auger spectroscopy provides complementary information on the dynamic response of resonantly excited molecules. This is exemplified for CH_{3}I, for which we reconstruct the potential energy surface of the dissociative I 3d^{-2} double core-hole state and determine its lifetime. The proposed method holds a strong potential for monitoring the hard x-ray induced electron and nuclear dynamic response of core-excited molecules containing heavy elements, where ab initio calculations of potential energy surfaces and lifetimes remain challenging. PMID- 29341716 TI - Single-Electron and Single-Photon Sensitivity with a Silicon Skipper CCD. AB - We have developed ultralow-noise electronics in combination with repetitive, nondestructive readout of a thick, fully depleted charge-coupled device (CCD) to achieve an unprecedented noise level of 0.068 e^{-} rms/pixel. This is the first time that discrete subelectron readout noise has been achieved reproducible over millions of pixels on a stable, large-area detector. This enables the contemporaneous, discrete, and quantized measurement of charge in pixels, irrespective of whether they contain zero electrons or thousands of electrons. Thus, the resulting CCD detector is an ultra-sensitive calorimeter. It is also capable of counting single photons in the optical and near-infrared regime. Implementing this innovative non-destructive readout system has a negligible impact on CCD design and fabrication, and there are nearly immediate scientific applications. As a particle detector, this CCD will have unprecedented sensitivity to low-mass dark matter particles and coherent neutrino-nucleus scattering, while future astronomical applications may include direct imaging and spectroscopy of exoplanets. PMID- 29341717 TI - Magnetic Circular Dichroism in X-Ray Emission from Ferromagnets. AB - The existence of novel magnetic circular dichroism in core-level x-ray emission is reported. By means of circular polarization analysis, the dichroic effect of the Fe Kalpha_{1} emission spectrum is measured on an Fe single crystal. The observed dichroic effect (12%) is remarkably large, if one takes into account the small dichroic effect (about 0.5%) in the conventional K-edge absorption spectroscopy of 3d transition metal elements. The mechanism is ascribed to exchange splitting of the 2p level possessing large spin-orbit coupling. This new magnetooptical effect enables us to explore a variety of new research subjects in the magnetism of 3d transition metals and their compounds by fully utilizing its large dichroic effect, the true bulk sensitivity of hard x rays, and the element selectivity of core-level spectroscopy. PMID- 29341719 TI - Detecting Topological Invariants in Nonunitary Discrete-Time Quantum Walks. AB - We report the experimental detection of bulk topological invariants in nonunitary discrete-time quantum walks with single photons. The nonunitarity of the quantum dynamics is enforced by periodically performing partial measurements on the polarization of the walker photon, which effectively introduces loss to the dynamics. The topological invariant of the nonunitary quantum walk is manifested in the quantized average displacement of the walker, which is probed by monitoring the photon loss. We confirm the topological properties of the system by observing localized edge states at the boundary of regions with different topological invariants. We further demonstrate the robustness of both the topological properties and the measurement scheme of the topological invariants against disorder. PMID- 29341720 TI - Magnetic Skyrmions and Skyrmion Clusters in the Helical Phase of Cu_{2}OSeO_{3}. AB - Skyrmions are nanometric spin whirls that can be stabilized in magnets lacking inversion symmetry. The properties of isolated Skyrmions embedded in a ferromagnetic background have been intensively studied. We show that single Skyrmions and clusters of Skyrmions can also form in the helical phase and investigate theoretically their energetics and dynamics. The helical background provides natural one-dimensional channels along which a Skyrmion can move rapidly. In contrast to Skyrmions in ferromagnets, the Skyrmion-Skyrmion interaction has a strong attractive component and thus Skyrmions tend to form clusters with characteristic shapes. These clusters are directly observed in transmission electron microscopy measurements in thin films of Cu_{2}OSeO_{3}. Topological quantization, high mobility, and the confinement of Skyrmions in channels provided by the helical background may be useful for future spintronics devices. PMID- 29341721 TI - Nonexponential Quantum Decay under Environmental Decoherence. AB - A system prepared in an unstable quantum state generally decays following an exponential law, as environmental decoherence is expected to prevent the decay products from recombining to reconstruct the initial state. Here we show the existence of deviations from exponential decay in open quantum systems under very general conditions. Our results are illustrated with the exact dynamics under quantum Brownian motion and suggest an explanation of recent experimental observations. PMID- 29341722 TI - A Laser Excitation Scheme for ^{229m}Th. AB - Direct laser excitation of the lowest known nuclear excited state in ^{229}Th has been a long-standing objective. It is generally assumed that reaching this goal would require a considerably reduced uncertainty of the isomer's excitation energy compared to the presently adopted value of (7.8+/-0.5) eV. Here we present a direct laser excitation scheme for ^{229m}Th, which circumvents this requirement. The proposed excitation scheme makes use of already existing laser technology and therefore paves the way for nuclear laser spectroscopy. In this concept, the recently experimentally observed internal-conversion decay channel of the isomeric state is used for probing the isomeric population. A signal-to background ratio of better than 10^{4} and a total measurement time of less than three days for laser scanning appear to be achievable. PMID- 29341723 TI - Improving a Solid-State Qubit through an Engineered Mesoscopic Environment. AB - A controlled quantum system can alter its environment by feedback, leading to reduced-entropy states of the environment and to improved system coherence. Here, using a quantum-dot electron spin as a control and probe, we prepare the quantum dot nuclei under the feedback of coherent population trapping and observe their evolution from a thermal to a reduced-entropy state, with the immediate consequence of extended qubit coherence. Via Ramsey interferometry on the electron spin, we directly access the nuclear distribution following its preparation and measure the emergence and decay of correlations within the nuclear ensemble. Under optimal feedback, the inhomogeneous dephasing time of the electron, T_{2}^{*}, is extended by an order of magnitude to 39 ns. Our results can be readily exploited in quantum information protocols utilizing spin-photon entanglement and represent a step towards creating quantum many-body states in a mesoscopic nuclear-spin ensemble. PMID- 29341724 TI - Landau Damping of Beam Instabilities by Electron Lenses. AB - Modern and future particle accelerators employ increasingly higher intensity and brighter beams of charged particles and become operationally limited by coherent beam instabilities. Usual methods to control the instabilities, such as octupole magnets, beam feedback dampers, and use of chromatic effects, become less effective and insufficient. We show that, in contrast, Lorentz forces of a low energy, magnetically stabilized electron beam, or "electron lens," easily introduce transverse nonlinear focusing sufficient for Landau damping of transverse beam instabilities in accelerators. It is also important to note that, unlike other nonlinear elements, the electron lens provides the frequency spread mainly at the beam core, thus allowing much higher frequency spread without lifetime degradation. For the parameters of the Future Circular Collider, a single conventional electron lens a few meters long would provide stabilization superior to tens of thousands of superconducting octupole magnets. PMID- 29341725 TI - New Measurement of the Direct 3alpha Decay from the ^{12}C Hoyle State. AB - Excited states in certain atomic nuclei possess an unusual structure, where the dominant degrees of freedom are those of alpha clusters rather than individual nucleons. It has been proposed that the diffuse 3alpha system of the ^{12}C Hoyle state may behave like a Bose-Einstein condensate, where the alpha clusters maintain their bosonic identities. By measuring the decay of the Hoyle state into three alpha particles, we obtained an upper limit for the rare direct 3alpha decay branch of 0.047%. This value is now at a level comparable with theoretical predictions and could be a sensitive probe of the structure of this state. PMID- 29341726 TI - Exposing the QCD Splitting Function with CMS Open Data. AB - The splitting function is a universal property of quantum chromodynamics (QCD) which describes how energy is shared between partons. Despite its ubiquitous appearance in many QCD calculations, the splitting function cannot be measured directly, since it always appears multiplied by a collinear singularity factor. Recently, however, a new jet substructure observable was introduced which asymptotes to the splitting function for sufficiently high jet energies. This provides a way to expose the splitting function through jet substructure measurements at the Large Hadron Collider. In this Letter, we use public data released by the CMS experiment to study the two-prong substructure of jets and test the 1->2 splitting function of QCD. To our knowledge, this is the first ever physics analysis based on the CMS Open Data. PMID- 29341727 TI - Charge Density Waves in Graphite: Towards the Magnetic Ultraquantum Limit. AB - Graphite is a model system for the study of three-dimensional electrons and holes in the magnetic quantum limit, in which the charges are confined to the lowest Landau levels. We report magneto-transport measurements in pulsed magnetic fields up to 60 T, which resolve the collapse of two charge density wave states in two, electron and hole, Landau levels at 52.3 and 54.2 T, respectively. We report evidence for a commensurate charge density wave at 47.1 T in the electron Landau level, and discuss the likely nature of the density wave instabilities over the full field range. The theoretical modeling of our results predicts that the ultraquantum limit is entered above 73.5 T. This state is an insulator, and we discuss its correspondence to the "metallic" state reported earlier. We propose that this (interaction-induced) insulating phase supports surface states that carry no charge or spin within the planes, but does, however, support charge transport out of plane. PMID- 29341728 TI - Multislip Friction with a Single Ion. AB - A trapped ion transported along a periodic potential is studied as a paradigmatic nanocontact frictional interface. The combination of the periodic corrugation potential and a harmonic trapping potential creates a one-dimensional energy landscape with multiple local minima, corresponding to multistable stick-slip friction. We measure the probabilities of slipping to the various minima for various corrugations and transport velocities. The observed probabilities show that the multislip regime can be reached dynamically at smaller corrugations than would be possible statically, and can be described by an equilibrium Boltzmann model. While a clear microscopic signature of multislip behavior is observed for the ion motion, the frictional force and dissipation are only weakly affected by the transition to multistable potentials. PMID- 29341729 TI - Printing Non-Euclidean Solids. AB - Geometrically frustrated solids with a non-Euclidean reference metric are ubiquitous in biology and are becoming increasingly relevant in technological applications. Often they acquire a targeted configuration of incompatibility through the surface accretion of mass as in tree growth or dam construction. We use the mechanics of incompatible surface growth to show that geometrical frustration developing during deposition can be fine-tuned to ensure a particular behavior of the system in physiological (or working) conditions. As an illustration, we obtain an explicit 3D printing protocol for arteries, which guarantees stress uniformity under inhomogeneous loading, and for explosive plants, allowing a complete release of residual elastic energy with a single cut. Interestingly, in both cases reaching the physiological target requires the incompatibility to have a topological (global) component. PMID- 29341718 TI - Search for Invisible Decays of a Dark Photon Produced in e^{+}e^{-} Collisions at BaBar. AB - We search for single-photon events in 53 fb^{-1} of e^{+}e^{-} collision data collected with the BABAR detector at the PEP-II B-Factory. We look for events with a single high-energy photon and a large missing momentum and energy, consistent with production of a spin-1 particle A^{'} through the process e^{+}e^{-}->gammaA^{'}; A^{'}->invisible. Such particles, referred to as "dark photons," are motivated by theories applying a U(1) gauge symmetry to dark matter. We find no evidence for such processes and set 90% confidence level upper limits on the coupling strength of A^{'} to e^{+}e^{-} in the mass range m_{A^{'}}<=8 GeV. In particular, our limits exclude the values of the A^{'} coupling suggested by the dark-photon interpretation of the muon (g-2)_{MU} anomaly, as well as a broad range of parameters for the dark-sector models. PMID- 29341730 TI - Polymer Chain Conformation and Dynamical Confinement in a Model One-Component Nanocomposite. AB - We report a neutron-scattering investigation on the structure and dynamics of a single-component nanocomposite based on SiO_{2} particles that were grafted with polyisoprene chains at the entanglement limit. By skillful labeling, we access both the monomer density in the corona as well as the conformation of the grafted chains. While the corona profile follows a r^{-1} power law, the conformation of a grafted chain is identical to that of a chain in a reference melt, implying a high mutual penetration of the coronas from different particles. The brush crowding leads to topological confinement of the chain dynamics: (i) At local scales, the segmental dynamics is unchanged compared to the reference melt, while (ii) at the scale of the chain, the dynamics appears to be slowed down; (iii) by performing a mode analysis in terms of end-fixed Rouse chains, the slower dynamics is tracked to topological confinement within the cone spanned by the adjacent grafts; (iv) by adding 50% matrix chains, the topological confinement sensed by the grafted chain is lifted partially and the apparent chain motion is accelerated. We observe a crossover from pure Rouse motion at short times to topological confined motion beyond the time when the segmental mean squared displacement has reached the distance to the next graft. PMID- 29341731 TI - Ultrafocused Electromagnetic Field Pulses with a Hollow Cylindrical Waveguide. AB - We theoretically show that a dipole externally driven by a pulse with a lower bounded temporal width, and placed inside a cylindrical hollow waveguide, can generate a train of arbitrarily short and focused electromagnetic pulses. The waveguide encloses vacuum with perfect electric conducting walls. A dipole driven by a single short pulse, which is properly engineered to exploit the linear spectral filtering of the cylindrical hollow waveguide, excites longitudinal waveguide modes that are coherently refocused at some particular instances of time, thereby producing arbitrarily short and focused electromagnetic pulses. We numerically show that such ultrafocused pulses persist outside the cylindrical waveguide at distances comparable to its radius. PMID- 29341732 TI - 3D Sisyphus Cooling of Trapped Ions. AB - Using a laser polarization gradient, we realize 3D Sisyphus cooling of ^{171}Yb^{+} ions confined in and near the Lamb-Dicke regime in a linear Paul trap. The cooling rate and final mean motional energy of a single ion are characterized as a function of laser intensity and compared to semiclassical and quantum simulations. Sisyphus cooling is also applied to a linear string of four ions to obtain a mean energy of 1-3 quanta for all vibrational modes, an approximately order of magnitude reduction below Doppler cooled energies. This is used to enable subsequent, efficient sideband laser cooling. PMID- 29341733 TI - Breaking the Temporal Resolution Limit by Superoscillating Optical Beats. AB - Band-limited functions can oscillate locally at an arbitrarily fast rate through an interference phenomenon known as superoscillations. Using an optical pulse with a superoscillatory envelope we experimentally break the temporal Fourier transform focusing limit with a temporal feature that is approximately three times shorter than the duration of a transform-limited Gaussian pulse having a comparable bandwidth while maintaining 30% visibility. We experimentally demonstrate the ability of such signals to achieve temporal superresolution and show numerically in which cases such pulses can outperform transform-limited pulses. PMID- 29341734 TI - Vapor-Induced Motion of Liquid Droplets on an Inert Substrate. AB - Evaporating droplets are known to show complex motion that has conventionally been explained by the Marangoni effect (flow induced by the gradient of surface tension). Here, we show that the droplet motion can be induced even in the absence of the Marangoni effect due to the gradient of the evaporation rate. We derive an equation for the velocity of a droplet subject to the nonuniform evaporation rate and nonuniform surface tension placed on an inert substrate, where the wettability is uniform and unchanged. The equation explains the previously observed attraction-repulsion-chasing behaviors of evaporating droplets. PMID- 29341735 TI - Complementarity and Polarization Modulation in Photon Interference. AB - We derive two general complementarity relations for the distinguishability and visibility of genuine vector-light quantum fields in double-pinhole photon interference involving polarization modulation. The established framework reveals an intrinsic aspect of wave-particle duality of the photon, not previously reported, thus providing deeper insights into foundational quantum interference physics. PMID- 29341736 TI - Emergence of Multiscaling in a Random-Force Stirred Fluid. AB - We consider the transition to strong turbulence in an infinite fluid stirred by a Gaussian random force. The transition is defined as a first appearance of anomalous scaling of normalized moments of velocity derivatives (dissipation rates) emerging from the low-Reynolds-number Gaussian background. It is shown that, due to multiscaling, strongly intermittent rare events can be quantitatively described in terms of an infinite number of different "Reynolds numbers" reflecting a multitude of anomalous scaling exponents. The theoretically predicted transition disappears at R_{lambda}<=3. The developed theory is in quantitative agreement with the outcome of large-scale numerical simulations. PMID- 29341737 TI - Superradiant Instability and Backreaction of Massive Vector Fields around Kerr Black Holes. AB - We study the growth and saturation of the superradiant instability of a complex, massive vector (Proca) field as it extracts energy and angular momentum from a spinning black hole, using numerical solutions of the full Einstein-Proca equations. We concentrate on a rapidly spinning black hole (a=0.99) and the dominant m=1 azimuthal mode of the Proca field, with real and imaginary components of the field chosen to yield an axisymmetric stress-energy tensor and, hence, spacetime. We find that in excess of 9% of the black hole's mass can be transferred into the field. In all cases studied, the superradiant instability smoothly saturates when the black hole's horizon frequency decreases to match the frequency of the Proca cloud that spontaneously forms around the black hole. PMID- 29341738 TI - Hierarchy Construction and Non-Abelian Families of Generic Topological Orders. AB - We generalize the hierarchy construction to generic 2+1D topological orders (which can be non-Abelian) by condensing Abelian anyons in one topological order to construct a new one. We show that such construction is reversible and leads to a new equivalence relation between topological orders. We refer to the corresponding equivalence class (the orbit of the hierarchy construction) as "the non-Abelian family." Each non-Abelian family has one or a few root topological orders with the smallest number of anyon types. All the Abelian topological orders belong to the trivial non-Abelian family whose root is the trivial topological order. We show that Abelian anyons in root topological orders must be bosons or fermions with trivial mutual statistics between them. The classification of topological orders is then greatly simplified, by focusing on the roots of each family: those roots are given by non-Abelian modular extensions of representation categories of Abelian groups. PMID- 29341739 TI - Direct Determination of Dynamic Properties of Coulomb and Yukawa Classical One Component Plasmas. AB - Dynamic characteristics of strongly coupled classical one-component Coulomb and Yukawa plasmas are obtained within the nonperturbative model-free moment approach without any data input from simulations so that the dynamic structure factor (DSF) satisfies the first three nonvanishing sum rules automatically. The DSF, dispersion, decay, sound speed, and other characteristics of the collective modes are determined using exclusively the static structure factor calculated from various theoretical approaches including the hypernetted chain approximation. A good quantitative agreement with molecular dynamics simulation data is achieved. PMID- 29341740 TI - Digital Quantum Simulation of Minimal AdS/CFT. AB - We propose the digital quantum simulation of a minimal AdS/CFT model in controllable quantum platforms. We consider the Sachdev-Ye-Kitaev model describing interacting Majorana fermions with randomly distributed all-to-all couplings, encoding nonlocal fermionic operators onto qubits to efficiently implement their dynamics via digital techniques. Moreover, we also give a method for probing nonequilibrium dynamics and the scrambling of information. Finally, our approach serves as a protocol for reproducing a simplified low-dimensional model of quantum gravity in advanced quantum platforms as trapped ions and superconducting circuits. PMID- 29341741 TI - Fractional Spin and Josephson Effect in Time-Reversal-Invariant Topological Superconductors. AB - Time-reversal-invariant topological superconducting (TRITOPS) wires are known to host a fractional spin h/4 at their ends. We investigate how this fractional spin affects the Josephson current in a TRITOPS-quantum dot-TRITOPS Josephson junction, describing the wire in a model that can be tuned between a topological and a nontopological phase. We compute the equilibrium Josephson current of the full model by continuous-time Monte Carlo simulations and interpret the results within an effective low-energy theory. We show that in the topological phase, the 0-to-pi transition is quenched via formation of a spin singlet from the quantum dot spin and the fractional spins associated with the two adjacent topological superconductors. PMID- 29341742 TI - Measurement of the Electron-Antineutrino Angular Correlation in Neutron beta Decay. AB - We report the first result for the electron-antineutrino angular correlation (a coefficient) in free neutron beta decay from the aCORN experiment. aCORN uses a novel method in which the a coefficient is proportional to an asymmetry in proton time of flight for events where the beta electron and recoil proton are detected in delayed coincidence. Data are presented from a 15 month run at the NIST Center for Neutron Research. We obtained a=-0.1090+/-0.0030(stat)+/-0.0028(sys), the most precise measurement of the neutron a coefficient reported to date. PMID- 29341743 TI - Size-Dependent Localization in Polydisperse Colloidal Glasses. AB - We have investigated concentrated suspensions of polydisperse hard spheres and have determined the dynamics and sizes of individual particles using confocal microscopy. With increasing concentration, the dynamics of the small and large particles start to differ. The large particles exhibit slower dynamics and stronger localization. Moreover, as the particle size increases, the local volume fraction phi_{loc} also increases. In the glass state, the localization length significantly decreases beyond phi_{loc}~0.67. This suggests a link between local crowding and dynamical heterogeneities. However dynamical arrest of subpopulations seems not directly linked to a large value of phi_{loc}, indicating the importance of collective effects. PMID- 29341744 TI - Dynamical Transition of Collective Motions in Dry Proteins. AB - Water is widely assumed to be essential for protein dynamics and function. In particular, the well-documented "dynamical" transition at ~200 K, at which the protein changes from a rigid, nonfunctional form to a flexible, functional state, as detected in hydrogenated protein by incoherent neutron scattering, requires hydration. Here, we report on coherent neutron scattering experiments on perdeuterated proteins and reveal that a transition occurs in dry proteins at the same temperature resulting primarily from the collective heavy-atom motions. The dynamical transition discovered is intrinsic to the energy landscape of dry proteins. PMID- 29341745 TI - Born-Oppenheimer Dynamics, Electronic Friction, and the Inclusion of Electron Electron Interactions. AB - We present a universal expression for the electronic friction as felt by a set of classical nuclear degrees of freedom (DOFs) coupled to a manifold of quantum electronic DOFs; no assumptions are made regarding the nature of the electronic Hamiltonian and electron-electron repulsions are allowed. Our derivation is based on a quantum-classical Liouville equation for the coupled electronic-nuclear motion, followed by an adiabatic approximation whereby electronic transitions are assumed to equilibrate faster than nuclear movement. The resulting form of friction is completely general, but does reduce to previously published expressions for the quadratic Hamiltonian (i.e., Hamiltonians without electronic correlation). At equilibrium, the second fluctuation-dissipation theorem is satisfied and the frictional matrix is symmetric. To demonstrate the importance of electron-electron correlation, we study electronic friction within the Anderson-Holstein model, where a proper treatment of electron-electron interactions shows signatures of a Kondo resonance and a mean-field treatment is completely inadequate. PMID- 29341746 TI - Is the Dispersion Relation Applicable for Exotic Nuclear Systems? The Abnormal Threshold Anomaly in the ^{6}He+^{209}Bi System. AB - The threshold anomaly of the phenomenological potential has been known for a long time in nuclear reactions at energies around the Coulomb barrier, where the connection between the real and imaginary potentials is well described by the dispersion relation. However, this connection is not clear yet for some weakly bound nuclear systems, especially for reactions induced by exotic radioactive nuclei. In this study, precise optical potentials of the halo nuclear system ^{6}He+^{209}Bi were extracted via ^{208}Pb(^{7}Li,^{6}He) transfer reactions with energies measured downward to the extremely sub-barrier region. The real potential presents a bell-like shape around the barrier as a normal threshold anomaly in tightly bound nuclear systems. However, the imaginary potential shows an abnormal behavior: it increases first with energy decreasing below the barrier and then falls quickly down to 0. It is the first time the threshold of the imaginary potential has been determined in an exotic nuclear system. Moreover, experimental results show the dispersion relation is not applicable for this system, which may be a common phenomenon for exotic nuclear systems. We discuss possible explanations for such a peculiar behavior, but further study is still desired for the underlying physics. PMID- 29341747 TI - (3+1)D Quasiparticle Anisotropic Hydrodynamics for Ultrarelativistic Heavy-Ion Collisions. AB - We present the first comparisons of experimental data with phenomenological results from (3+1)D quasiparticle anisotropic hydrodynamics (aHydroQP). We compare particle spectra, average transverse momentum, and elliptic flow. The dynamical equations used for the hydrodynamic stage utilize aHydroQP, which naturally includes both shear and bulk viscous effects. The (3+1)D aHydroQP evolution obtained is self-consistently converted to hadrons using anisotropic Cooper-Frye freeze-out. Hadron production and decays are modeled using a customized version of therminator 2. In this first study, we utilized smooth Glauber-type initial conditions and a single effective freeze-out temperature T_{FO}=130 MeV with all hadronic species in full chemical equilibrium. With this rather simple setup, we find a very good description of many heavy-ion observables. PMID- 29341748 TI - Sliced Basis Density Matrix Renormalization Group for Electronic Structure. AB - We introduce a hybrid approach to applying the density matrix renormalization group to continuous systems, combining a grid approximation along one direction with a finite Gaussian basis set for the remaining two directions. This approach is especially useful for chainlike molecules, where the grid is used in the long direction. For hydrogen chain systems, the computational time scales approximately linearly with the number of atoms, as we show with near-exact minimal basis set calculations with up to 1000 atoms. The linear scaling comes from both the localization of the basis and a compression method for the long ranged two-electron interaction. For shorter hydrogen chains, we show results with up to triple-zeta bases. PMID- 29341749 TI - Towards Attosecond High-Energy Electron Bunches: Controlling Self-Injection in Laser-Wakefield Accelerators Through Plasma-Density Modulation. AB - Self-injection in a laser-plasma wakefield accelerator is usually achieved by increasing the laser intensity until the threshold for injection is exceeded. Alternatively, the velocity of the bubble accelerating structure can be controlled using plasma density ramps, reducing the electron velocity required for injection. We present a model describing self-injection in the short-bunch regime for arbitrary changes in the plasma density. We derive the threshold condition for injection due to a plasma density gradient, which is confirmed using particle-in-cell simulations that demonstrate injection of subfemtosecond bunches. It is shown that the bunch charge, bunch length, and separation of bunches in a bunch train can be controlled by tailoring the plasma density profile. PMID- 29341750 TI - In-Plane Propagation of Light in Transition Metal Dichalcogenide Monolayers: Optical Selection Rules. AB - The optical selection rules for interband transitions in WSe_{2}, WS_{2}, and MoSe_{2} transition metal dichalcogenide monolayers are investigated by polarization-resolved photoluminescence experiments with a signal collection from the sample edge. These measurements reveal a strong polarization dependence of the emission lines. We see clear signatures of the emitted light with the electric field oriented perpendicular to the monolayer plane, corresponding to an interband optical transition forbidden at normal incidence used in standard optical spectroscopy measurements. The experimental results are in agreement with the optical selection rules deduced from group theory analysis, highlighting the key role played by the different symmetries of the conduction and valence bands split by the spin-orbit interaction. These studies yield a direct determination of the bright-dark exciton splitting, for which we measure 40+/-1 meV and 55+/-2 meV in WSe_{2} and WS_{2} monolayer, respectively. PMID- 29341751 TI - Entanglement in Nonunitary Quantum Critical Spin Chains. AB - Entanglement entropy has proven invaluable to our understanding of quantum criticality. It is natural to try to extend the concept to "nonunitary quantum mechanics," which has seen growing interest from areas as diverse as open quantum systems, noninteracting electronic disordered systems, or nonunitary conformal field theory (CFT). We propose and investigate such an extension here, by focusing on the case of one-dimensional quantum group symmetric or supergroup symmetric spin chains. We show that the consideration of left and right eigenstates combined with appropriate definitions of the trace leads to a natural definition of Renyi entropies in a large variety of models. We interpret this definition geometrically in terms of related loop models and calculate the corresponding scaling in the conformal case. This allows us to distinguish the role of the central charge and effective central charge in rational minimal models of CFT, and to define an effective central charge in other, less well understood cases. The example of the sl(2|1) alternating spin chain for percolation is discussed in detail. PMID- 29341752 TI - Tensor-Network Simulations of the Surface Code under Realistic Noise. AB - The surface code is a many-body quantum system, and simulating it in generic conditions is computationally hard. While the surface code is believed to have a high threshold, the numerical simulations used to establish this threshold are based on simplified noise models. We present a tensor-network algorithm for simulating error correction with the surface code under arbitrary local noise. We use this algorithm to study the threshold and the subthreshold behavior of the amplitude damping and systematic rotation channels. We also compare these results to those obtained by making standard approximations to the noise models. PMID- 29341753 TI - Probing the Nano-Skyrmion Lattice on Fe/Ir(111) with Magnetic Exchange Force Microscopy. AB - We demonstrate that the magnetic nano-Skyrmion lattice on the Fe monolayer on Ir(111) and the positions of the Fe atoms can be resolved simultaneously using magnetic exchange force microscopy. Thus, the relation between magnetic and atomic structure can be determined straightforwardly by evaluating the Fourier transformation of the real space image data. We further show that the magnetic contrast can be mapped on a Heisenberg-like magnetic interaction between tip and sample spins. Since our imaging technique is based on measuring forces, our observation paves the way to study Skyrmions or other complex spin textures on insulating sample systems with atomic resolution. PMID- 29341754 TI - Plasma versus Drude Modeling of the Casimir Force: Beyond the Proximity Force Approximation. AB - We calculate the Casimir force and its gradient between a spherical and a planar gold surface. Significant numerical improvements allow us to extend the range of accessible parameters into the experimental regime. We compare our numerically exact results with those obtained within the proximity force approximation (PFA) employed in the analysis of all Casimir force experiments reported in the literature so far. Special attention is paid to the difference between the Drude model and the dissipationless plasma model at zero frequency. It is found that the correction to PFA is too small to explain the discrepancy between the experimental data and the PFA result based on the Drude model. However, it turns out that for the plasma model, the corrections to PFA lie well outside the experimental bound obtained by probing the variation of the force gradient with the sphere radius [D. E. Krause et al., Phys. Rev. Lett. 98, 050403 (2007)PRLTAO0031-900710.1103/PhysRevLett.98.050403]. The corresponding corrections based on the Drude model are significantly smaller but still in violation of the experimental bound for small distances between plane and sphere. PMID- 29341755 TI - Excitation and Control of Plasma Wakefields by Multiple Laser Pulses. AB - We demonstrate experimentally the resonant excitation of plasma waves by trains of laser pulses. We also take an important first step to achieving an energy recovery plasma accelerator by showing that a plasma wave can be damped by an out of-resonance trailing laser pulse. The measured laser wakefields are found to be in excellent agreement with analytical and numerical models of wakefield excitation in the linear regime. Our results indicate a promising direction for achieving highly controlled, GeV-scale laser-plasma accelerators operating at multikilohertz repetition rates. PMID- 29341756 TI - Generic Theory for Majorana Zero Modes in 2D Superconductors. AB - It is well known that non-Abelian Majorana zero modes (MZM) are located at vortex cores in a p_{x}+??p_{y} topological superconductor, which can be realized in a 2D spin-orbit coupled system with a single Fermi surface and by proximity coupling to an s-wave superconductor. Here we show that the existence of non Abelian MZMs is unrelated to the bulk topology of a 2D superconductor, and propose that such exotic modes can result in a much broader range of superconductors, being topological or trivial. For a generic 2D system with multiple Fermi surfaces that is gapped out by superconducting pairings, we show that at least a single MZM survives if there are only an odd number of Fermi surfaces of which the corresponding superconducting orders have vortices; such a MZM is protected by an emergent Chern-Simons invariant, irrespective of the bulk topology of the superconductor. This result enriches new experimental schemes for realizing non-Abelian MZMs. In particular, we propose a minimal scheme to realize the MZMs in a 2D superconducting Dirac semimetal with trivial bulk topology, which can be well achieved based on recent cold-atom experiments. PMID- 29341757 TI - Deconstructing Temperature Gradients across Fluid Interfaces: The Structural Origin of the Thermal Resistance of Liquid-Vapor Interfaces. AB - The interfacial thermal resistance determines condensation-evaporation processes and thermal transport across material-fluid interfaces. Despite its importance in transport processes, the interfacial structure responsible for the thermal resistance is still unknown. By combining nonequilibrium molecular dynamics simulations and interfacial analyses that remove the interfacial thermal fluctuations we show that the thermal resistance of liquid-vapor interfaces is connected to a low density fluid layer that is adsorbed at the liquid surface. This thermal resistance layer (TRL) defines the boundary where the thermal transport mechanism changes from that of gases (ballistic) to that characteristic of dense liquids, dominated by frequent particle collisions involving very short mean free paths. We show that the thermal conductance is proportional to the number of atoms adsorbed in the TRL, and hence we explain the structural origin of the thermal resistance in liquid-vapor interfaces. PMID- 29341758 TI - Nonreciprocal Magnons and Symmetry-Breaking in the Noncentrosymmetric Antiferromagnet. AB - Inelastic neutron scattering measurements were performed to study spin dynamics in the noncentrosymmetric antiferromagnet alpha-Cu_{2}V_{2}O_{7}. For the first time, nonreciprocal magnons were experimentally measured in an antiferromagnet. These nonreciprocal magnons are caused by the incompatibility between anisotropic exchange and antisymmetric Dzyaloshinskii-Moriya interactions, which arise from broken symmetry, resulting in a collinear ordered state but helical spin dynamics. The nonreciprocity introduces the difference in the phase velocity of the counterrotating modes, causing the opposite spontaneous magnonic Faraday rotation of the left- and right-propagating spin waves. The breaking of spatial inversion and time reversal symmetry is revealed as a magnetic-field-induced asymmetric energy shift, which provides a test for the detailed balance relation. PMID- 29341759 TI - Crossover from Classical to Fermi Liquid Behavior in Dense Plasmas. AB - We explore the crossover from classical plasma to quantum Fermi liquid behavior of electrons in dense plasmas. To this end, we analyze the evolution with density and temperature of the momentum lifetime of a test electron introduced in a dense electron gas. This allows us (1) to determine the boundaries of the crossover region in the temperature-density plane and to shed light on the evolution of scattering properties across it, (2) to quantify the role of the fermionic nature of electrons on electronic collisions across the crossover region, and (3) to explain how the concept of the Coulomb logarithm emerges at a high enough temperature but disappears at a low enough temperature. PMID- 29341760 TI - Correlated Photon Dynamics in Dissipative Rydberg Media. AB - Rydberg blockade physics in optically dense atomic media under the conditions of electromagnetically induced transparency (EIT) leads to strong dissipative interactions between single photons. We introduce a new approach to analyzing this challenging many-body problem in the limit of a large optical depth per blockade radius. In our approach, we separate the single-polariton EIT physics from Rydberg-Rydberg interactions in a serialized manner while using a hard sphere model for the latter, thus capturing the dualistic particle-wave nature of light as it manifests itself in dissipative Rydberg-EIT media. Using this approach, we analyze the saturation behavior of the transmission through one dimensional Rydberg-EIT media in the regime of nonperturbative dissipative interactions relevant to current experiments. Our model is able to capture the many-body dynamics of bright, coherent pulses through these strongly interacting media. We compare our model with available experimental data in this regime and find good agreement. We also analyze a scheme for generating regular trains of single photons from continuous-wave input and derive its scaling behavior in the presence of imperfect single-photon EIT. PMID- 29341761 TI - Superadditivity of the Classical Capacity with Limited Entanglement Assistance. AB - Finding the optimal encoding strategies can be challenging for communication using quantum channels, as classical and quantum capacities may be superadditive. Entanglement assistance can often simplify this task, as the entanglement assisted classical capacity for any channel is additive, making entanglement across channel uses unnecessary. If the entanglement assistance is limited, the picture is much more unclear. Suppose the classical capacity is superadditive, then the classical capacity with limited entanglement assistance could retain superadditivity by continuity arguments. If the classical capacity is additive, it is unknown if superadditivity can still be developed with limited entanglement assistance. We show this is possible, by providing an example. We construct a channel for which the classical capacity is additive, but that with limited entanglement assistance can be superadditive. This shows entanglement plays a weird role in communication, and we still understand very little about it. PMID- 29341763 TI - Auxiliary-Field Monte Carlo Method to Tackle Strong Interactions and Frustration in Lattice Bosons. AB - We introduce a new numerical technique, the bosonic auxiliary-field Monte Carlo method, which allows us to calculate the thermal properties of large lattice boson systems within a systematically improvable semiclassical approach, and which is virtually applicable to any bosonic model. Our method amounts to a decomposition of the lattice into clusters, and to an ansatz for the density matrix of the system in the form of a cluster-separable state-with nonentangled, yet classically correlated clusters. This approximation eliminates any sign problem, and can be systematically improved upon by using clusters of growing size. Extrapolation in the cluster size allows us to reproduce numerically exact results for the superfluid transition of hard-core bosons on the square lattice, and to provide a solid quantitative prediction for the superfluid and chiral transition of hardcore bosons on the frustrated triangular lattice. PMID- 29341764 TI - Order by Quenched Disorder in the Model Triangular Antiferromagnet RbFe(MoO_{4})_{2}. AB - We observe a disappearance of the 1/3 magnetization plateau and a striking change of the magnetic configuration under a moderate doping of the model triangular antiferromagnet RbFe(MoO_{4})_{2}. The reason is an effective lifting of degeneracy of mean-field ground states by a random potential of impurities, which compensates, in the low-temperature limit, the fluctuation contribution to free energy. These results provide a direct experimental confirmation of the fluctuation origin of the ground state in a real frustrated system. The change of the ground state to a least collinear configuration reveals an effective positive biquadratic exchange provided by the structural disorder. On heating, doped samples regain the structure of a pure compound, thus allowing for an investigation of the remarkable competition between thermal and structural disorder. PMID- 29341765 TI - Magnetic Fluctuations, Precursor Phenomena, and Phase Transition in MnSi under a Magnetic Field. AB - The reference chiral helimagnet MnSi is the first system where Skyrmion lattice correlations have been reported. At a zero magnetic field the transition at T_{C} to the helimagnetic state is of first order. Above T_{C}, in a region dominated by precursor phenomena, neutron scattering shows the buildup of strong chiral fluctuating correlations over the surface of a sphere with radius 2pi/l, where l is the pitch of the helix. It has been suggested that these fluctuating correlations drive the helical transition to first order following a scenario proposed by Brazovskii for liquid crystals. We present a comprehensive neutron scattering study under magnetic fields, which provides evidence that this is not the case. The sharp first order transition persists for magnetic fields up to 0.4 T whereas the fluctuating correlations weaken and start to concentrate along the field direction already above 0.2 T. Our results thus disconnect the first order nature of the transition from the precursor fluctuating correlations. They also show no indication for a tricritical point, where the first order transition crosses over to second order with increasing magnetic field. In this light, the nature of the first order helical transition and the precursor phenomena above T_{C}, both of general relevance to chiral magnetism, remain an open question. PMID- 29341766 TI - Noise-Induced Subdiffusion in Strongly Localized Quantum Systems. AB - We consider the dynamics of strongly localized systems subject to dephasing noise with arbitrary correlation time. Although noise inevitably induces delocalization, transport in the noise-induced delocalized phase is subdiffusive in a parametrically large intermediate-time window. We argue for this intermediate-time subdiffusive regime both analytically and using numerical simulations on single-particle localized systems. Furthermore, we show that normal diffusion is restored in the long-time limit, through processes analogous to variable-range hopping. With numerical simulations based on Lanczos exact diagonalization, we demonstrate that our qualitative conclusions are also valid for interacting systems in the many-body localized phase. PMID- 29341767 TI - Dynamics of Dwarf Galaxies Disfavor Stellar-Mass Black Holes as Dark Matter. AB - We study the effects of black hole dark matter on the dynamical evolution of stars in dwarf galaxies. We find that mass segregation leads to a depletion of stars in the center of dwarf galaxies and the appearance of a ring in the projected stellar surface density profile. Using Segue 1 as an example we show that current observations of the projected surface stellar density rule out at the 99.9% confidence level the possibility that more than 6% of the dark matter is composed of black holes with a mass of few tens of solar masses. PMID- 29341768 TI - Novel Role of Superfluidity in Low-Energy Nuclear Reactions. AB - We demonstrate, within symmetry unrestricted time-dependent density functional theory, the existence of new effects in low-energy nuclear reactions which originate from superfluidity. The dynamics of the pairing field induces solitonic excitations in the colliding nuclear systems, leading to qualitative changes in the reaction dynamics. The solitonic excitation prevents collective energy dissipation and effectively suppresses the fusion cross section. We demonstrate how the variations of the total kinetic energy of the fragments can be traced back to the energy stored in the superfluid junction of colliding nuclei. Both contact time and scattering angle in noncentral collisions are significantly affected. The modification of the fusion cross section and possibilities for its experimental detection are discussed. PMID- 29341769 TI - Defect Structure of Localized Excitons in a WSe_{2} Monolayer. AB - The atomic and electronic structure of intrinsic defects in a WSe_{2} monolayer grown on graphite was revealed by low temperature scanning tunneling microscopy and spectroscopy. Instead of chalcogen vacancies that prevail in other transition metal dichalcogenide materials, intrinsic defects in WSe_{2} arise surprisingly from single tungsten vacancies, leading to the hole (p-type) doping. Furthermore, we found these defects to dominate the excitonic emission of the WSe_{2} monolayer at low temperature. Our work provided the first atomic-scale understanding of defect excitons and paved the way toward deciphering the defect structure of single quantum emitters previously discovered in the WSe_{2} monolayer. PMID- 29341771 TI - Quantum Numbers of Recently Discovered Omega_{c}^{0} Baryons from Lattice QCD. AB - We present the ground and excited state spectra of Omega_{c}^{0} baryons with spin up to 7/2 from lattice quantum chromodynamics with dynamical quark fields. Based on our lattice results, we predict the quantum numbers of five Omega_{c}^{0} baryons, which have recently been observed by the LHCb Collaboration. Our results strongly indicate that the observed states Omega_{c}(3000)^{0} and Omega_{c}(3050)^{0} have spin-parity J^{P}=1/2^{-}, the states Omega_{c}(3066)^{0} and Omega_{c}(3090)^{0} have J^{P}=3/2^{-}, whereas Omega_{c}(3119)^{0} is possibly a 5/2^{-} state. PMID- 29341772 TI - Determinant Diagrammatic Monte Carlo Algorithm in the Thermodynamic Limit. AB - We present a simple trick that allows us to consider the sum of all connected Feynman diagrams at fixed position of interaction vertices for general fermionic models, such that the thermodynamic limit can be taken analytically. With our approach one can achieve superior performance compared to conventional diagrammatic Monte Carlo algorithm, while rendering the algorithmic part dramatically simpler. By considering the sum of all connected diagrams at once, we allow for massive cancellations between different diagrams, greatly reducing the sign problem. In the end, the computational effort increases only exponentially with the order of the expansion, which should be contrasted with the factorial growth of the standard diagrammatic technique. We illustrate the efficiency of the technique for the two-dimensional Fermi-Hubbard model. PMID- 29341773 TI - Collective Optomechanical Effects in Cavity Quantum Electrodynamics. AB - We investigate a cavity quantum electrodynamic effect, where the alignment of two dimensional freely rotating optical dipoles is driven by their collective coupling to the cavity field. By exploiting the formal equivalence of a set of rotating dipoles with a polymer we calculate the partition function of the coupled light-matter system and demonstrate that it exhibits a second order phase transition between a bunched state of isotropic orientations and a stretched one with all the dipoles aligned. Such a transition manifests itself as an intensity dependent shift of the polariton mode resonance. Our work, lying at the crossroad between cavity quantum electrodynamics and quantum optomechanics, is a step forward in the ongoing quest to understand how strong coupling can be exploited to influence matter internal degrees of freedom. PMID- 29341774 TI - Tailoring Correlations of the Local Density of States in Disordered Photonic Materials. AB - We present experimental evidence for the different mechanisms driving the fluctuations of the local density of states (LDOS) in disordered photonic systems. We establish a clear link between the microscopic structure of the material and the frequency correlation function of LDOS accessed by a near-field hyperspectral imaging technique. We show, in particular, that short- and long range frequency correlations of LDOS are controlled by different physical processes (multiple or single scattering processes, respectively) that can be-to some extent-manipulated independently. We also demonstrate that the single scattering contribution to LDOS fluctuations is sensitive to subwavelength features of the material and, in particular, to the correlation length of its dielectric function. Our work paves a way towards complete control of statistical properties of disordered photonic systems, allowing for designing materials with predefined correlations of LDOS. PMID- 29341775 TI - Mixing by Unstirring: Hyperuniform Dispersion of Interacting Particles upon Chaotic Advection. AB - We show how to achieve both fast and hyperuniform dispersions of particles in viscous fluids. To do so, we first extend the concept of critical random organization to chaotic drives. We show how palindromic sequences of chaotic advection cause microscopic particles to effectively interact at long range, thereby inhibiting critical self-organization. Based on this understanding we go around this limitation and design sequences of stirring and unstirring which simultaneously optimize the speed of particle spreading and the homogeneity of the resulting dispersions. PMID- 29341770 TI - Search for Neutrinoless Quadruple-beta Decay of ^{150}Nd with the NEMO-3 Detector. AB - We report the results of a first experimental search for lepton number violation by four units in the neutrinoless quadruple-beta decay of ^{150}Nd using a total exposure of 0.19 kg yr recorded with the NEMO-3 detector at the Modane Underground Laboratory. We find no evidence of this decay and set lower limits on the half-life in the range T_{1/2}>(1.1-3.2)*10^{21} yr at the 90% C.L., depending on the model used for the kinematic distributions of the emitted electrons. PMID- 29341776 TI - Magnetic Domain Walls as Hosts of Spin Superfluids and Generators of Skyrmions. AB - A domain wall in a magnet with easy-axis anisotropy is shown to harbor spin superfluid associated with its spontaneous breaking of the U(1) spin-rotational symmetry. The spin superfluid is shown to have several topological properties, which are absent in conventional superfluids. First, the associated phase slips create and destroy Skyrmions to obey the conservation of the total Skyrmion charge, which allows us to use a domain wall as a generator and detector of Skyrmions. Second, the domain wall engenders the emergent magnetic flux for magnons along its length, which are proportional to the spin supercurrent flowing through it, and thereby provides a way to manipulate magnons. Third, the spin supercurrent can be driven by the magnon current traveling across it owing to the spin transfer between the domain wall and magnons, leading to the magnonic manipulation of the spin superfluid. The theory for superfluid spin transport within the domain wall is confirmed by numerical simulations. PMID- 29341777 TI - High-Fidelity Single-Shot Singlet-Triplet Readout of Precision-Placed Donors in Silicon. AB - In this work we perform direct single-shot readout of the singlet-triplet states in exchange coupled electrons confined to precision-placed donor atoms in silicon. Our method takes advantage of the large energy splitting given by the Pauli-spin blockaded (2,0) triplet states, from which we can achieve a single shot readout fidelity of 98.4+/-0.2%. We measure the triplet-minus relaxation time to be of the order 3 s at 2.5 T and observe its predicted decrease as a function of magnetic field, reaching 0.5 s at 1 T. PMID- 29341778 TI - Entanglement-Enhanced Radio-Frequency Field Detection and Waveform Sensing. AB - We demonstrate a new technique for detecting the amplitude of arbitrarily chosen components of radio-frequency waveforms based on stroboscopic backaction evading measurements. We combine quantum nondemolition measurements and stroboscopic probing to detect waveform components with magnetic sensitivity beyond the standard quantum limit. Using an ensemble of 1.5*10^{6} cold rubidium atoms, we demonstrate entanglement-enhanced sensing of sinusoidal and linearly chirped waveforms, with 1.0(2) and 0.8(3) dB metrologically relevant noise reduction, respectively. We achieve volume-adjusted sensitivity of deltaBsqrt[V]~3.96 fTsqrt[cm^{3}/Hz], comparable to the best rf magnetometers. PMID- 29341779 TI - Mesoscopic Transport in Electrostatically Defined Spin-Full Channels in Quantum Hall Ferromagnets. AB - In this work, we use electrostatic control of quantum Hall ferromagnetic transitions in CdMnTe quantum wells to study electron transport through individual domain walls (DWs) induced at a specific location. These DWs are formed due to the hybridization of two counterpropagating edge states with opposite spin polarization. Conduction through DWs is found to be symmetric under magnetic field direction reversal, consistent with the helical nature of these DWs. We observe that long domain walls are in the insulating regime with a localization length of 4-6 MUm. In shorter DWs, the resistance saturates to a nonzero value at low temperatures. Mesoscopic resistance fluctuations in a magnetic field are investigated. The theoretical model of transport through impurity states within the gap induced by spin-orbit interactions agrees well with the experimental data. Helical DWs have the required symmetry for the formation of synthetic p-wave superconductors. The achieved electrostatic control of a single helical domain wall is a milestone on the path to their reconfigurable network and ultimately to a demonstration of the braiding of non Abelian excitations. PMID- 29341780 TI - Interplay of Correlations and Kohn Anomalies in Three Dimensions: Quantum Criticality with a Twist. AB - A general understanding of quantum phase transitions in strongly correlated materials is still lacking. By exploiting a cutting-edge quantum many-body approach, the dynamical vertex approximation, we make important progress, determining the quantum critical properties of the antiferromagnetic transition in the fundamental model for correlated electrons, the Hubbard model in three dimensions. In particular, we demonstrate that-in contradiction to the conventional Hertz-Millis-Moriya theory-its quantum critical behavior is driven by the Kohn anomalies of the Fermi surface, even when electronic correlations become strong. PMID- 29341781 TI - Valley-Polarized Quantum Anomalous Hall Effect in Ferrimagnetic Honeycomb Lattices. AB - The valley-polarized quantum anomalous Hall effect (VP-QAHE), which combines valleytronics and topology in one material, is of significant fundamental and practical importance in condensed-matter physics and materials science. In previous model studies, VP-QAHE occurs under strong Rashba spin-orbit coupling (SOC), which is an extrinsic effect. Here, using a low energy k.p model, we propose a different mechanism of VP-QAHE by introducing an intrinsic staggered magnetic exchange field and develop a general picture of valley dependent band inversion in honeycomb lattice. Using first-principles calculation, this new mechanism is further demonstrated in the Co decorated In-triangle adlayer on a Si(111) surface. This system is equivalent to a ferrimagnetic honeycomb lattice, and the supported adlayer is experimentally more feasible in synthesis, thus exhibiting advantages over the existing studies based on Rashba SOC and free standing sheets. The underlying physical mechanism is generally applicable, opening a new avenue for exploration of substrate supported VP-QAHE. PMID- 29341782 TI - Complex Quasi-Two-Dimensional Crystalline Order Embedded in VO_{2} and Other Crystals. AB - Metal oxides such as VO_{2} undergo structural transitions to low-symmetry phases characterized by intricate crystalline order, accompanied by rich electronic behavior. We derive a minimal ionic Hamiltonian based on symmetry and local energetics which describes structural transitions involving all four observed phases, in the correct order. An exact analysis shows that complexity results from the symmetry-induced constraints of the parent phase, which forces ionic displacements to form multiple interpenetrating groups using low-dimensional pathways and distant neighbors. Displacements within each group exhibit independent, quasi-two-dimensional order, which is frustrated and fragile. This selective ordering mechanism is not restricted to VO_{2}: it applies to other oxides that show similar complex order. PMID- 29341783 TI - Bell Inequalities Tailored to Maximally Entangled States. AB - Bell inequalities have traditionally been used to demonstrate that quantum theory is nonlocal, in the sense that there exist correlations generated from composite quantum states that cannot be explained by means of local hidden variables. With the advent of device-independent quantum information protocols, Bell inequalities have gained an additional role as certificates of relevant quantum properties. In this work, we consider the problem of designing Bell inequalities that are tailored to detect maximally entangled states. We introduce a class of Bell inequalities valid for an arbitrary number of measurements and results, derive analytically their tight classical, nonsignaling, and quantum bounds and prove that the latter is attained by maximally entangled states. Our inequalities can therefore find an application in device-independent protocols requiring maximally entangled states. PMID- 29341784 TI - Fractional Transport in Strongly Turbulent Plasmas. AB - We analyze statistically the energization of particles in a large scale environment of strong turbulence that is fragmented into a large number of distributed current filaments. The turbulent environment is generated through strongly perturbed, 3D, resistive magnetohydrodynamics simulations, and it emerges naturally from the nonlinear evolution, without a specific reconnection geometry being set up. Based on test-particle simulations, we estimate the transport coefficients in energy space for use in the classical Fokker-Planck (FP) equation, and we show that the latter fails to reproduce the simulation results. The reason is that transport in energy space is highly anomalous (strange), the particles perform Levy flights, and the energy distributions show extended power-law tails. Newly then, we motivate the use and derive the specific form of a fractional transport equation (FTE), we determine its parameters and the order of the fractional derivatives from the simulation data, and we show that the FTE is able to reproduce the high energy part of the simulation data very well. The procedure for determining the FTE parameters also makes clear that it is the analysis of the simulation data that allows us to make the decision whether a classical FP equation or a FTE is appropriate. PMID- 29341785 TI - Total sleep deprivation does not significantly degrade semantic encoding. AB - Sleep deprivation impairs performance on cognitive tasks, but it is unclear which cognitive processes it degrades. We administered a semantic matching task with variable stimulus onset asynchrony (SOA) and both speeded and self-paced trial blocks. The task was administered at the baseline and 24 hours later after 30.8 hours of total sleep deprivation (TSD) or matching well-rested control. After sleep deprivation, the 20% slowest response times (RTs) were significantly increased. However, the semantic encoding time component of the RTs remained at baseline level. Thus, the performance impairment induced by sleep deprivation on this task occurred in cognitive processes downstream of semantic encoding. PMID- 29341786 TI - Unscheduled adolescents return to the emergency department following acute concussion. AB - OBJECTIVE: Emergency department (ED) visits due to concussion have increased over recent years. We aimed to identify variables associated with unscheduled adolescents return to the ED. METHODS: A retrospective cohort study was conducted. All children aged 11 to 18 years who were admitted to the ED due to concussion between 2011 and 2016 were included. Multivariable logistic regression was performed to identify predictors of ED return. RESULTS: Overall, 616 adolescents were admitted to the ED due to concussion. Within the first week from discharge, 37/616 (6%) patients returned unscheduled to the ED, 21 (3.4%) during the first 48 hours and 16 (2.6%) during the following 3-7 days. Age, gender, ethnicity, diagnosis of concussion on first visit and length-of-stay in the ED were not associated with unscheduled ED returns. Variables that were independently associated with increased odds for an unscheduled ED return included two or more symptoms of concussion [odds ratio (OR): 2.81; 95% confidence interval (CI): (1.16-6.82)], bicycle or motor vehicle accident (OR: 3.48; 95% CI: 1.29-9.4), and performance of CT scan on first visit (OR: 2.47; 95% CI: 1.12-5.48). CONCLUSIONS: The findings suggest that certain variables on the first ED visit can predict an unscheduled return visit in adolescents. ABBREVIATIONS: Emergency department (ED); Length of stay (LOS); computerised tomography (CT). PMID- 29341787 TI - The effects of early life polyunsaturated fatty acids and ruminant trans fatty acids on allergic diseases: A systematic review and meta-analysis. AB - Early life nutritional exposures could modify the gene expression and susceptibility of allergic diseases (AD). This systematic review aimed to evaluate whether early life (the first 1,000 days) natural exposure to polyunsaturated fatty acids (PUFA) and ruminant trans fatty acids (R-TFA) could affect the AD risk. We searched PubMed, EMBASE, PsycINFO, Scopus, the Cochrane Library, and ClinicalTrials.gov from inception through September 10, 2017 for relevant full-text articles in English. Observational studies were selected if they examined the effects of early life PUFA or R-TFA on AD (eczema, asthma, wheeze, and allergic rhinitis) or sensitization. The quality of studies was examined by the Newcastle-Ottawa Scale, and the best evidence synthesis (BES) was applied. We included 26 observational studies, and 8 of them showed high quality. BES showed a moderate evidence for the protective effect of vaccenic acid (VA, an R-TFA) on eczema, while insufficient or no evidence was found in other associations. Meta-analysis showed that higher n-6/n-3 ratio and linoleic acid were associated with higher risk of eczema (pooled odds ratio [OR] = 1.06, 95% confidence intervals [CI]: 1.00 -1.13; 1.08, 95% CI: 1.01 -1.15). However, VA was inversely associated with eczema pooled OR = 0.42, 95% CI: 0.25 -0.72). Early life natural exposure to VA showed evident benefit on decreasing the risk of eczema, while PUFA and other R-TFA showed limited effects on AD. More robust studies especially for R-TFA are required. PMID- 29341788 TI - Specific airway resistance is a better outcome parameter in bronchial provocation testing compared to FEV1 in patients with bronchial asthma. AB - OBJECTIVES: Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness (AHR). A bronchial provocation test (BPT) is used to test for AHR. However forced expiratory volume in one second (FEV1), used as outcome parameter is effort-related, in contrast to specific airway resistance (sRaw). This research was conducted to provide insight in the usefulness of sRaw as an outcome parameter in BPT. METHODS: A total of 85 patients performing a BPT were included in the study. Bronchial reactivity was defined as the provocative dosage or provocative concentration causing a 20% decrease in FEV1 (PC-20) or a 100% increase in sRaw (PC+100). RESULTS: No significant response in either FEV1 or sRaw was found in 20 patients (24%). Twenty-nine patients (34%) only had a positive response for sRaw; 24 out of these 29 patients recognized their symptoms. 36 patients (42%) showed a positive response for both PC-20 and PC + 100. CONCLUSIONS: Twenty-nine patients (34%) showed a significant increase in sRaw without a fall in FEV1. As performing sRaw is not a routine investigation, these patients are at risk of being excluded from a diagnosis of asthma. We suggest performing sRaw for patients without a fall in FEV1 during BPT when they report recognizable symptoms. PMID- 29341789 TI - Psychometric properties of the Epworth Sleepiness Scale: A factor analysis and item-response theory approach. AB - The purpose of this study is to examine the psychometric properties of the Epworth Sleepiness Scale (ESS) in two languages, German and English. Students from a university in Austria (N = 292; 55 males; mean age = 18.71 +/- 1.71 years; 237 females; mean age = 18.24 +/- 0.88 years) and a university in the US (N = 329; 128 males; mean age = 18.71 +/- 0.88 years; 201 females; mean age = 21.59 +/ 2.27 years) completed the ESS. An exploratory-factor analysis was completed to examine dimensionality of the ESS. Item response theory (IRT) analyses were used to provide information about the response rates on the items on the ESS and provide differential item functioning (DIF) analyses to examine whether the items were interpreted differently between the two languages. The factor analyses suggest that the ESS measures two distinct sleepiness constructs. These constructs indicate that the ESS is probing sleepiness in settings requiring active versus passive responding. The IRT analyses found that overall, the items on the ESS perform well as a measure of sleepiness. However, Item 8 and to a lesser extent Item 6 were being interpreted differently by respondents in comparison to the other items. In addition, the DIF analyses showed that the responses between German and English were very similar indicating that there are only minor measurement differences between the two language versions of the ESS. These findings suggest that the ESS provides a reliable measure of propensity to sleepiness; however, it does convey a two-factor approach to sleepiness. Researchers and clinicians can use the German and English versions of the ESS but may wish to exclude Item 8 when calculating a total sleepiness score. PMID- 29341791 TI - Population level evidence for seasonality of the human microbiome. AB - The objective of this study is to determine whether human body odors undergo seasonal modulation. We utilized google trends search volume from the United States of America from January 1, 2010 to June 24, 2017 for a number of predetermined body odors. Regression modeling of time series data was completed. Our primary outcome was to determine the proportion of the variability in Internet searches for each unpleasant odor (about the mean) that is explained by a seasonal model. We determined that the seasonal (sinusoidal) model provided a significantly better fit than the null model (best straight line fit) for all searches relating to human body odors (P <.0001 for each). This effect was easily visible to the naked eye in the raw time series data. Seasonality explained 88% of the variability in search volume for flatulence (i.e. R2 = 0.88), 65% of the variability in search volume for axillary odor, 60% of the variability in search volume for foot odor, and 58% of the variability in search volume for bad breath. Flatulence and bad breath tended to peak in January, foot odor in February, and Axillary odor in July. We conclude that searching by the general public for information on unpleasant body odors undergoes substantial seasonal variation, with the timing of peaks and troughs varying with the body part involved. The symptom burden of such smells may have a similar seasonal variation, as might the composition of the commensal bacterial microflora that play a role in creating them. PMID- 29341792 TI - The blinding thyroid gland. PMID- 29341790 TI - Postnatal tendon growth and remodeling require platelet-derived growth factor receptor signaling. AB - Platelet-derived growth factor receptor (PDGFR) signaling plays an important role in the fundamental biological activities of many cells that compose musculoskeletal tissues. However, little is known about the role of PDGFR signaling during tendon growth and remodeling in adult animals. Using the hindlimb synergist ablation model of tendon growth, our objectives were to determine the role of PDGFR signaling in the adaptation of tendons subjected to a mechanical growth stimulus, as well as to investigate the biological mechanisms behind this response. We demonstrate that both PDGFRs, PDGFRalpha and PDGFRbeta, are expressed in tendon fibroblasts and that the inhibition of PDGFR signaling suppresses the normal growth of tendon tissue in response to mechanical growth cues due to defects in fibroblast proliferation and migration. We also identify membrane type-1 matrix metalloproteinase (MT1-MMP) as an essential proteinase for the migration of tendon fibroblasts through their extracellular matrix. Furthermore, we report that MT1-MMP translation is regulated by phosphoinositide 3-kinase/Akt signaling, while ERK1/2 controls posttranslational trafficking of MT1-MMP to the plasma membrane of tendon fibroblasts. Taken together, these findings demonstrate that PDGFR signaling is necessary for postnatal tendon growth and remodeling and that MT1-MMP is a critical mediator of tendon fibroblast migration and a potential target for the treatment of tendon injuries and diseases. PMID- 29341793 TI - Platelet transfusion does not improve outcomes in patients with brain injury on antiplatelet therapy. AB - INTRODUCTION: Platelet dysfunction following traumatic brain injury (TBI) is associated with worse outcomes. The efficacy of platelet transfusion to reverse antiplatelet medication (APM) remains unknown. Thrombelastography platelet mapping (TEG-PM) assesses platelet function. We hypothesize that platelet transfusion can reverse the effects of APM but does not improve outcomes following TBI. METHODS: An observational study at six US trauma centres was performed. Adult patients on APM with CT evident TBI after blunt injury were enrolled. Demographics, brain CT and TEG-PM results before/after platelet transfusion, length of stay (LOS), and injury severity score (ISS) were abstracted. RESULTS: Sixty six patients were enrolled (89% aspirin, 50% clopidogrel, 23% dual APM) with 23 patients undergoing platelet transfusion. Transfused patients had significantly higher ISS and admission CT scores. Platelet transfusion significantly reduced platelet inhibition due to aspirin (76.0 +/- 30.2% to 52.7 +/- 31.5%, p < 0.01), but had a non-significant impact on clopidogrel-associated inhibition (p = 0.07). Platelet transfusion was associated with longer length of stay (7.8 vs. 3.5 days, p < 0.01), but there were no differences in mortality. CONCLUSION: Platelet transfusion significantly decreases platelet inhibition due to aspirin but is not associated with change in outcomes in patients on APM following TBI. PMID- 29341794 TI - Preseason Strength Assessment of the Rotator Muscles and Shoulder Injury in Handball Players. AB - CONTEXT: Few researchers have identified intrinsic risk factors for shoulder injury in team handball players by analyzing measurements of maximal isokinetic rotator muscle strength. OBJECTIVE: To identify possible intrinsic risk factors for shoulder injury by analyzing measurements of maximal isokinetic rotator muscle strength. DESIGN: Cross-sectional study. SETTING: Male team handball senior divisions (the highest level) in France and Belgium. PATIENTS OR OTHER PARTICIPANTS: A total of 108 male high-level handball players (age = 24 +/- 4 years, height = 189 +/- 6 cm, mass = 87 +/- 11 kg) were enrolled. MAIN OUTCOME MEASURE(S): All players completed a preseason questionnaire and performed a bilateral isokinetic assessment of the shoulder rotator muscles. On a monthly questionnaire, players reported any shoulder injury that they sustained during the season. RESULTS: On the preseason questionnaire, 51 of 108 (47%) participants reported a history of dominant-shoulder injury. A total of 106 participants completed the in-season questionnaire, with 22% (n = 23) reporting a shoulder injury on their dominant side during the subsequent season. Fourteen percent (n = 15) sustained microtraumatic injuries, and 8% (n = 8) described a traumatic injury. Backcourt players had a 3.5-times increased risk of injury during the new season compared with players in other positions. Among the isokinetic results, no risk factor for further injury was identified in handball players with microtraumatic injuries. For traumatic injuries, the concentric maximal strength developed by the internal rotators at high speed (240 degrees /s) in the dominant shoulder was a protective factor against the risk of further injury. CONCLUSIONS: These results can potentially identify intrinsic risk factors for shoulder injury and may be used to determine potential interventions for reducing this risk in handball players. PMID- 29341762 TI - First Observation of a Baryonic B_{s}^{0} Decay. AB - We report the first observation of a baryonic B_{s}^{0} decay, B_{s}^{0} >pLambda[over -]K^{-}, using proton-proton collision data recorded by the LHCb experiment at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3.0 fb^{-1}. The branching fraction is measured to be B(B_{s}^{0}->pLambda[over -]K^{-})+B(B_{s}^{0}->p[over -]LambdaK^{+})=[5.46+/ 0.61+/-0.57+/-0.50(B)+/-0.32(f_{s}/f_{d})]*10^{-6}, where the first uncertainty is statistical and the second systematic, the third uncertainty accounts for the experimental uncertainty on the branching fraction of the B^{0}->pLambda[over ]pi^{-} decay used for normalization, and the fourth uncertainty relates to the knowledge of the ratio of b-quark hadronization probabilities f_{s}/f_{d}. PMID- 29341795 TI - The Ability to Provide Quality Chest Compressions Over Lacrosse Shoulder Pads. AB - CONTEXT: Performance of quality cardiopulmonary resuscitation is essential for improving patient outcomes. Performing compressions over football equipment inhibits compression depth and rate, but lacrosse equipment has not yet been studied. OBJECTIVE: To assess the effect of lacrosse shoulder pads on the ability to provide quality chest compressions on simulation manikins. DESIGN: Crossover study. SETTING: Simulation laboratory. PATIENTS OR OTHER PARTICIPANTS: Thirty-six athletic trainers (12 men: age = 33.3 +/- 9.7 years; 24 women: age = 33.4 +/- 9.8 years). MAIN OUTCOME MEASURE(S): No shoulder pads (NSP), Warrior Burn Hitman shoulder pads (WSP), and STX Cell II shoulder pads (SSP) were investigated. Outcomes were chest-compression depth (millimeters), rate (compressions per minute), rating of perceived exertion (0-10), hand placement accuracy (%), and chest recoil (%). RESULTS: We observed a difference in mean compression depth among shoulder-pad conditions ( F2,213 = 3.73, P = .03, omega2 = 0.03), with a shallower depth during the WSP (54.1 +/- 5.8 mm) than the NSP (56.8 +/- 5.7 mm; P = .02) trials. However, no differences were found in mean compression rate ( F2,213 = 0.87, P = .42, omega2 = 0.001, 1-beta = .20). We noted a difference in rating of perceived exertion scores ( F2,213 = 16.41, P < .001, omega2 = 0.12). Compressions were more difficult during the SSP condition (4.1 +/- 1.3) than during the NSP (2.9 +/- 1.2; P < .001) and WSP (3.3 +/- 1.1; P = .002) conditions. A difference was present in hand-placement accuracy among the 3 shoulder-pad conditions (chi22 = 11.14, P = .004). Hand-placement accuracy was better in the NSP than the SSP condition ( P = .002) and the SSP than the WSP condition ( P = .001). CONCLUSIONS: Lacrosse shoulder pads did not inhibit the ability to administer chest compressions with adequate rate and depth. With appropriate training to improve hand placement, the pads may be left in place while cardiopulmonary resuscitation is initiated during sudden cardiac arrest. PMID- 29341796 TI - Correction to: Missed medical appointments during shifts to and from daylight saving time. PMID- 29341799 TI - DIGEST. PMID- 29341798 TI - Phenolic Constituents and Inhibitory Effects of Hibiscus sabdariffa L. (Sorrel) Calyx on Cholinergic, Monoaminergic, and Purinergic Enzyme Activities. AB - This study revealed the effect of phenolic extract from Hibiscus sabdariffa L. (sorrel) calyx on acetylcholinesterase (AChE), butyrylcholinesterase (BChE), monoamine oxidase (MAO), and ecto-5' nucleotidase (E-NTDase) activities as well as pro-oxidant-induced oxidative damage in rat brain in vitro. Sorrel extract inhibited AChE (EC50 = 46.96 ug/mL), BChE (EC50 = 40.38 ug/mL), MAO (EC50 = 43.69 ug/mL), and E-NTDase (EC50 = 40.52 ug/mL) and stimulated Na+/K+-ATPase (EC50 = 22.01 ug/mL) activities. The phenolic extract also reduced Fe2+- (EC50 = 22.37 ug/mL) and sodium nitroprusside- (SNP-) (21.46 ug/mL) induced malondialdehyde (MDA) production in rat brain homogenates. Catechin (53.12 mg/g), chlorogenic (67.12 mg/g), rutin (16.25 mg/g), and caffeic acid (15.38 mg/g) were the most abundant phenolic compounds in the extract. The synergistic effects of the phenolic compounds may contribute to the enzyme inhibitory and stimulatory activities of the extract. Our findings suggest that sorrel extract shows promising potential for the treatment and/or management of some neurodegenerative diseases such as Alzheimer's disease and Parkinson's disease. PMID- 29341800 TI - Factors Associated with Patient Satisfaction in an Outpatient Glaucoma Population. AB - PURPOSE: To determine what metrics might impact satisfaction survey responses. METHODS: A 37-question survey was administered to 249 participants. Responses were correlated to demographics, clinical factors, weather conditions, and examination timing. RESULTS: Sample consists of 55.4% female and 73.9% white, and mean age was 65.1 years. Participants were assigned to: completely satisfied (77.9%) or not completely satisfied (22.1%) groups based on their rating of glaucoma specialist on a scale of 1-10, while 10 considered "completely satisfied" and less than 10 "not completely satisfied." Complete satisfaction was associated with ability to schedule appointments early, phone calls answered/returned same day, shorter perceived wait time, and better communication skills of ophthalmologist (p < 0.05). Completely satisfied participants reported their ophthalmologist spent enough time with them, listened carefully, and communicated in an understandable way (p < 0.05). CONCLUSIONS: The majority of factors found to be associated with patient satisfaction were related to characteristics of the ophthalmologists and their office. PMID- 29341797 TI - Visual dependence affects postural sway responses to continuous visual field motion in individuals with cerebral palsy. AB - : The current study aimed to explore the impact of visual dependence on sensorimotor coupling of postural sway and visual motion in adults and teens with spastic cerebral palsy (CP). We hypothesized that individuals with CP would exhibit greater magnitudes of sway than healthy individuals, and the presence of visual dependence (VD) would produce instability in the direction of visual motion. Participants stood in a virtual environment in which the visual scene remained static or continuously rotated 30 degree/second in pitch-up or pitch down. Increased center of pressure and center of mass responses were observed in the direction of visual scene motion in those with CP. Those with VD exhibited reduced frequency responses in anterior-posterior direction than those who were visually independent. VD suggests deficient sensorimotor integration that could contribute to postural instability and reduced motor function. Individuals with CP who are visually dependent may benefit from more sensory focused rehabilitation strategies. ABBREVIATIONS: AP, anterior-posterior; CP, cerebral palsy; COM, center of mass; COP, center of pressure; MDF, median frequency; ML, mediolateral; PD, pitch down (nose down) rotation; PU, pitch up (nose up) rotation; RFT, rod and frame test; RMS, root mean square; SLP, slope of the fitted line; TD, typical development; VD, visual dependence; VI, visual independence; VOR, vestibulo-ocular reflex; VPI, visual perceptual impairment. PMID- 29341801 TI - Local vs. national: Epidemiology of pedestrian injury in a mid-Atlantic city. AB - OBJECTIVE: Understanding pedestrian injury trends at the local level is essential for program planning and allocation of funds for urban planning and improvement. Because we hypothesize that local injury trends differ from national trends in significant and meaningful ways, we investigated citywide pedestrian injury trends to assess injury risk among nationally identified risk groups, as well as identify risk groups and locations specific to Baltimore City. METHODS: Pedestrian injury data, obtained from the Baltimore City Fire Department, were gathered through emergency medical services (EMS) records collected from January 1 to December 31, 2014. Locations of pedestrian injuries were geocoded and mapped. Pearson's chi-square test of independence was used to investigate differences in injury severity level across risk groups. Pedestrian injury rates by age group, gender, and race were compared to national rates. RESULTS: A total of 699 pedestrians were involved in motor vehicle crashes in 2014-an average of 2 EMS transports each day. The distribution of injuries throughout the city did not coincide with population or income distributions, indicating that there was not a consistent correlation between areas of concentrated population or concentrated poverty and areas of concentrated pedestrian injury. Twenty percent (n = 138) of all injuries occurred among children age <=14, and 22% (n = 73) of severe injuries occurred among young children. The rate of injury in this age group was 5 times the national rate (Incident Rate Ratio [IRR] = 4.81, 95% confidence interval [CI], [4.05, 5.71]). Injury rates for adults >=65 were less than the national average. CONCLUSIONS: As the urban landscape and associated pedestrian behavior transform, continued investigation of local pedestrian injury trends and evolving public health prevention strategies is necessary to ensure pedestrian safety. PMID- 29341802 TI - Portulaca oleracea L. Extract Enhances Glucose Uptake by Stimulating GLUT4 Translocation to the Plasma Membrane in 3T3-L1 Adipocytes. AB - This study investigated the effects of Portulaca oleracea L. extract on glucose uptake in 3T3-L1 adipocytes. P. oleracea extract (POE) markedly enhanced glucose uptake, which was caused by increased GLUT4 expression at the plasma membrane (PM) in 3T3-L1 adipocytes. This increase in PM-GLUT4 expression was associated with insulin receptor substrate-1 (IRS-1) phosphorylation, phosphatidylinositol 3 kinase (PI3K) activation, and Akt phosphorylation, and finally, enhanced intracellular glucose uptake. POE was not associated with protein kinase C (PKC)lambda/zeta phosphorylation in the insulin signaling pathway, but did promote 5'-AMP-activated kinase (AMPK) phosphorylation. Increased glucose uptake through POE was inhibited through treating with the PI3K inhibitor or AMPK inhibitor in 3T3-L1 adipocytes. This result suggested that POE may enhance glucose uptake by stimulating GLUT4 translocation to the PM through activating the PI3K and AMPK pathway in 3T3-L1 adipocytes. PMID- 29341804 TI - Benefits and logistics of nonpresenting undergraduate students attending a professional scientific meeting. PMID- 29341803 TI - Licorice Pretreatment Protects Against Brain Damage Induced by Middle Cerebral Artery Occlusion in Mice. AB - Licorice is extracted from the roots of plants in the Glycyrrhiza genus, especially Glycyrrhiza uralensis in China and Korea. It has several pharmacological activities, including neuro-protective, anti-fungal, and anti cariogenic effects. Ischemia/reperfusion-induced brain injury is a leading cause of adult disability and death; thus, the identification of anti-apoptotic, neuro protective therapeutic agents is viewed as an attractive drug development strategy. Infarct volumes and the expression of several apoptosis-related proteins, including Bcl-xL, Bcl-2, caspase-8, and caspase-9, were evaluated by western blotting in the brains of mice subjected to middle cerebral artery occlusion (MCAO). Three consecutive days of oral pretreatment with the methanol extract of licorice (GRex) significantly reduced infarct volumes 24 h after MCAO. In addition, GRex effectively inhibited the activation of caspase-9 by upregulating protein expression of Bcl-xL and Bcl-2. The neuro-protective effect of licorice was due to its regulation of apoptosis-related proteins. These data suggest that licorice could be a potential candidate for the treatment of ischemia-induced brain damage. PMID- 29341805 TI - A case study approach, combined with modified team-based learning, to teach the progression of metabolic syndrome to type 2 diabetes. PMID- 29341806 TI - The membrane potential puzzle: a new educational game to use in physiology teaching. PMID- 29341807 TI - Active memory reactivation previous to the introduction of a new related content improves students' learning. PMID- 29341808 TI - Development of an open-access, web-based interactive tool to learn autonomic nervous system physiology and pharmacology. PMID- 29341809 TI - Modified directed self-learning sessions in physiology with prereading assignments and Pecha Kucha talks: perceptions of students. AB - The present study reports perceptions of first-year undergraduate medical students ( n = 120), regarding modified directed self-learning (DSL) sessions in physiology. Students were provided with prereading assignments (faculty developed PowerPoint slides containing diagrams with incomplete labeling/flowcharts with missing steps) pertaining to the DSL topic 1 wk before the scheduled small-group DSL presentations. During DSL presentation sessions, which were facilitated by teachers, a few students individually presented learning objectives in the specified topic. Apart from that, students discussed answers for the questions in the prereading assignment. Students were also given an opportunity to use technology to support DSL, by way of involving them in Pecha Kucha (PK) talks. The impact of the modified DSL method was determined by requesting students to respond to a validated questionnaire. Frequency analysis of the responses revealed that >60% of students were positive about the modified DSL sessions improving their DSL, presentation, collaborative learning, and information retrieving skills. Students agreed that PK talks helped them to learn how to organize content (65%), present concise information (65.8%), and apply creativity (72.5%). Even though small in number, there were comments that the prereading assignments were useful for learning. The present study revealed that, even though students actively participated in modified DSL sessions, their perceptions on satisfaction and usefulness of the same toward achievement of various skills were not encouraging. The study generated significant results, which implies that undergraduate medical students should be oriented on the relevance of active learning strategies in their future studies. PMID- 29341810 TI - Beyond "formative": assessments to enrich student learning. AB - Formative assessments can enhance and enrich student learning. Typically, these have been used to provide feedback against end-of-course standards and prepare students for summative assessments of performance or measurement of competence. Here, we present the case for using assessments for learning to encompass a wider range of important outcomes. We discuss 1) the rationale for using assessment for learning; 2) guiding theories of expertise that inform assessment for learning; 3) theoretical and empirical evidence; 4) approaches to rigor and validation; and 5) approaches to implementation at multiple levels of the curriculum. The literature strongly supports the use of assessments as an opportunity to reinforce and enhance learning. Physiology teachers have a wide range of theories, models, and interventions from which to prepare students for retention, application, transfer, and future learning by using assessments. PMID- 29341811 TI - Impact of distance education via interactive videoconferencing on students' course performance and satisfaction. AB - The impact of distance education via interactive videoconferencing on pharmacy students' performance in a course was assessed after implementation of a distance campus. Students filled out a "Student Demographic Survey" and a "Precourse Knowledge Assessment" at the start of the course and a "Postcourse Knowledge Assessment" and a "Postcourse Student Perceptions Survey" at the end of the course. The primary end point, a comparison of course grades (%) between the main and distance campuses, was examined using the two-sample t-test. We examined the relationships among demographics, campus location, course grades, grade point average, pre- and postcourse knowledge assessments, and postcourse perceptions as our secondary end points with parametric and nonparametric tests. Data from 93 students were included in the analysis [main campus ( n = 81); distance campus ( n = 12)]. Students on the main campus achieved a significantly higher final course grade (87 vs. 81%; P = 0.02). Scores on the Postcourse Knowledge Assessment were also significantly higher compared with those of students on the distance education campus (77 vs. 68%; P = 0.04). Students on both campuses reported self-perceived improvement in their knowledge base regarding various aspects of infectious diseases. Compared with the students on the distance campus, those on the main campus were more likely to subjectively perceive that they had succeeded in the course ( P = 0.04). Our study suggests that students on the main campus achieved a higher final course grade and were more likely to feel that they had succeeded in the course. Students on both campuses reported improvement in knowledge. PMID- 29341812 TI - Optional anatomy and physiology e-learning resources: student access, learning approaches, and academic outcomes. AB - Anatomy and physiology interactive video clips were introduced into a blended learning environment, as an optional resource, and were accessed by ~50% of the cohort. Student feedback indicated that clips were engaging, assisted understanding of course content, and provided lecture support. Students could also access two other optional online resources, lecture capture recordings and an interactive atlas of anatomy, and individuals were tracked with respect to their access behavior, learning approach, and subject score. Deep learning was highest among those accessing the clips or atlas or those accessing more online resources, and thus self-regulatory skill development might be a useful approach to increase student access to optional online resources. Those who accessed clips, lecture capture recordings, or atlas achieved a significantly higher subject score than those who did not. When combinations of resources used were considered, we found an approximately linear relationship between number of resources accessed and subject score, with a 16% difference in score between those who accessed none or all of the resources. However, the low resource access rate suggests that academic advantage may not be simply due to the learning support offered by the resources. As students accessing the optional resources tended to be more self-regulated, it may be that it was the extra effort made with respect to other subject resources, rather than just the access to the online resources, that contributed to higher subject score. Further studies are required to establish the relationships between academic performance, optional online resource access, and deep learning. PMID- 29341813 TI - Regenerative medicine: a vehicle to infuse laboratory-bench modules into an exercise physiology curriculum. AB - Regenerative medicine is a novel discipline that both excites undergraduates and may be used as a vehicle to expose students to scientific concepts and opportunities. The goal of this article is to describe the implementation of a National Science Foundation-funded Targeted Infusion Project in which underrepresented minority undergraduates are exposed to laboratory-bench skills and summer research opportunities that they may not have encountered otherwise. A 3-wk infusion of laboratory-bench and data presentation skills, in the context of a regenerative medicine/bioengineering project, aimed to engage students and expose them to opportunities as summer researchers and teaching assistants. The infusion aimed to assess the extent to which students improved 1) attitudes toward laboratory-bench-based techniques, using attitudes toward science as a proxy; 2) perceptions of scientific inquiry; 3) intentions to engage in undergraduate research; and 4) intentions to persist in science, technology, engineering, and mathematics (STEM)-related fields. Results indicate that the 3 wk infusion had no effect on science attitudes, but transcribed responses to structured interviews administered after the summer research experience indicated that students who completed summer research projects had positive experiences. Differences in intentions to engage in research were detected between groups of students in different STEM majors, in addition to differences in intentions to pursue a career in science. We describe the implementation of the infusion and briefly discuss quantitative outcomes. We conclude that infusion of laboratory bench modules in the context of a regenerative medicine/bioengineering project may play a small but important role in increasing (minority) participation and persistence in the STEM pipeline. PMID- 29341814 TI - Utilizing a rat delayed implantation model to teach integrative endocrinology and reproductive biology. AB - In this teaching laboratory, the students are directed in an exercise that involves designing and performing an experiment to determine estrogen's role in regulating delayed implantation (diapause) in female rats. To encourage active participation by the students, a discussion question is provided before the laboratory exercise in which each student is asked to search the literature and provide written answers to questions and to formulate an experiment to test the role of ovarian estrogen in inducing implantation in female rats. One week before the laboratory exercise, students discuss their answers to the questions with the instructor to develop an experiment to test their hypothesis that estrogen is involved with inducing implantation in the rat. A rat delayed implantation model was established that utilizes an estrogen receptor antagonist (ICI 182,780), which inhibits the action of ovarian estrogens. Groups of mated females are treated with either carrier (control) or ICI 182,780 (ICI) every other day, starting on day 2 postcoitus (pc) until day 8 pc. One-half of the females receiving ICI are injected with estradiol-17beta on day 8 pc to induce implantation 4 days after the controls. If the ICI-treated females are not administered estradiol, embryo implantation occurs spontaneously ~4 days after the last ICI injection on day 8. This is a very simple protocol that is very effective and provides an excellent experiment for student discussion on hormone action and the use of agonists and antagonists. PMID- 29341815 TI - Development and validation of simulated virtual patients to impart early clinical exposure in endocrine physiology. AB - In the country presently, preclinical medical students are not routinely exposed to real patients. Thus, when they start clinical postings, they are found to have poor clinical reasoning skills. Simulated virtual patients (SVPs) can improve clinical skills without endangering real patients. This pilot study describes the development of two SVPs in endocrine physiology and their validation in terms of acquisition of clinical knowledge and student engagement. Two SVPs, Nandini Sharma (unintentional weight gain) and Sunil Yadav (polyuria), were created and published on the i-Human Patients platform through an iterative, interdisciplinary, and transdisciplinary collaborative process using the conceptual framework of Kim et al. (Kim S, Phillips WR, Pinsky L, Brock D, Phillips K, Keary J. Med Educ 40: 867-876, 2006). After internal and external peer validation, the SVPs were piloted on 40 students (20 students per virtual patient) over 2 wk. A cognitive pretest was conducted before exposure, and a posttest soon after. Faculty and student feedback were collected. Faculty found SVPs authentic, helpful as teaching-learning tools, and useful for giving feedback and for assessment. Students found SVPs more engaging than paper cases and helpful in developing clinical reasoning and in imparting clinical exposure. Pretest and posttest scores indicated knowledge gain ( P < 0.01). Although challenging to create, SVPs created on the i-Human Patients platform improved learning in endocrine physiology and were well accepted by students and faculty as a means to provide early clinical exposure. More SVPs can be developed through collaboration between stakeholder departments and integrated into the curriculum for greater benefit. PMID- 29341816 TI - Red cell indexes made easy using an interactive animation: do students and their scores concur? AB - A good understanding of red cell indexes can aid medical students in a considerable manner, serving as a basis to unravel both concepts in red cell physiology and abnormalities associated with the same. In this study, we tried to assess whether an interactive animation was helpful in improving student comprehension and understanding of red cell indexes compared with conventional classroom teaching. Eighty-eight first-year MBBS students participated, of which 44 were assigned to group A and 44 were assigned to group B after randomization. After further creation of smaller groups, students were provided with 45 min to revise red cell indexes, after which they were required to complete a multimodal questionnaire. Group A subgroups used written material for revision, whereas group B subgroups had access to an interactive animation. After completion of the questionnaire, group A students also used the animation after which feedback was collected from all students. Efficacy of the animation to improve learning and retention was demonstrated, as group B students scored significantly higher than group A students on the questionnaire ( P = 0.0003). A clear majority of the students agreed/strongly agreed that the animation was easy to operate, conveyed important concepts efficiently, and improved their knowledge of related clinical aspects as well. From the results and feedback, we found that the animation was a simple, well-received model, which, by significantly improving student performance, corroborated our hypothesis that inclusion of interactive animation into student curriculum can advance their academic attainment, compared with didactic teaching alone. PMID- 29341817 TI - Setting national guidelines for physiology undergraduate degree programs. PMID- 29341818 TI - Medicine as It Should Be: Teaching Team and Teamwork during a Palliative Care Clerkship. AB - BACKGROUND: Interprofessional Education (IPE) is an important component of medical education. Rotations with palliative care interdisciplinary teams (IDTs) provide an optimal environment for IPE and teaching teamwork skills. OBJECTIVE: Our objective was to assess the learning of senior medical students during a palliative care rotation. DESIGN: A constant comparison method based on grounded theory was used in this qualitative study. SETTING/SUBJECTS: Senior medical students completed a semi-structured reflective writing exercise after a required one-week palliative care clerkship. Sixty randomly selected reflective writings were analyzed. MEASUREMENTS: The reflective writings were analyzed to evaluate the student's experiences. RESULTS: Dominant themes identified were related to teams and teamwork. Eight specific themes were identified: value of IDT for team members; value of IDT for patient/family; importance of each team member; reliance on other team members; roles of team members; how teams work; team communication; and interdisciplinary assessment and care planning. Students described exposure to novel experiences and planned to incorporate newly learned behaviors in their future practice. CONCLUSION: By participating in palliative care IDTs, medical students consistently learned about teamwork within healthcare. Additionally, they learned the importance of such teamwork to patients and the team itself. Rotations with palliative care IDTs have a significant role to play in IPE and preparing medical students to practice on teams. PMID- 29341819 TI - From the desk of Peter F. Buckley, MD. PMID- 29341820 TI - Comments on Abilify MyCite. PMID- 29341821 TI - Deuterium Tetrabenazine for Tardive Dyskinesia. AB - Tardive dyskinesia remains a significant, potentially stigmatizing or crippling adverse effect for any patient treated with an antipsychotic medication. While second- and third-generation antipsychotics have exhibited lower annual incidence rates for tardive dyskinesia than classic or first-generation agents, 3.9% versus 5.5%, the estimated incidence rate is only modestly lower. When coupled with the fact that second- and third-generation antipsychotic medications have come to be employed in treating a wider range of disorders (e.g., autism spectrum disorders, mood disorders, personality disorders, etc.), it is clear that the population of patients exposed to the risk of tardive dyskinesia has expanded. On April 3, 2017, the U.S. Food and Drug Administration (FDA) approved a deuterated version of tetrabenazine (Xenozine(r)) for the treatment of the involuntary choreic movements associated with Huntington's disease. More recent data, however, have indicated that deuterium tetrabenazine or deutetrabenazine (Austedo(r)) is effective in treating tardive dyskinesia. Moreover, like the other derivative of tetrabenazine, valbenazine (Ingrezza(r)), deutetrabenazine offers less frequent dosing and a better short-term adverse effect profile than that of tetrabenazine. Longer use in a broader range of patients, however, will be required to identify risks and benefits not found in short-term trials, as well as optimal use parameters for treatment of tardive dyskinesia. PMID- 29341822 TI - Aripiprazole Long-Acting Injectable for Maintenance Treatment of Bipolar I Disorder in Adults. AB - Bipolar I disorder is a serious and disabling psychiatric illness. It is associated with a significant reduction in quality of life and an increased risk for suicide. Pharmacotherapy is essential for both the acute and maintenance treatment of bi-polar I disorder. While multiple oral medications are recommended for the maintenance treatment, there are not many long-acting injectable medications approved for this indication. New treatments that would improve patient adherence have the potential for decreasing relapses and improving patients' ability to remain functional members of society. In this paper we discuss the available data for safety and efficacy of aripiprazole long-acting injectable in bipolar disorder. PMID- 29341823 TI - Clinical News. PMID- 29341824 TI - Intestinal lymph as a readout of meal-induced GLP-1 release in an unrestrained rat model. AB - Intestinal lymph supposedly provides a readout for the secretion of intestinal peptides. We here assessed how mesenteric lymph duct (MLD) lymph levels of glucagon-like peptide (GLP-1), insulin, and metabolites [glucose and triglycerides (TG)] evolve after isocaloric high- and low-fat diet (HFD and LFD) meals and how they compare with hepatic portal vein (HPV) plasma levels. Moreover, we examined the effects of intraperitoneally administered GLP-1 (1 or 10 nmol/kg) on these parameters. At 20 min after the HFD meal onset, GLP-1 levels were higher in MLD lymph than in HPV plasma. No such difference occurred with the LFD meal. Intraperitoneal injections of 10 nmol/kg GLP-1 before meals enhanced the meal-induced increases in MLD lymph and HPV plasma GLP-1 levels except for the MLD lymph levels after the HFD meal. Intraperitoneal injection of 1 nmol/kg GLP-1 only increased HPV plasma GLP-1 levels at 60 min after the HFD meal. GLP-1 injections did not increase the MLD lymph or HPV plasma GLP-1 concentrations beyond the physiological range, suggesting that intraperitoneal GLP-1 injections can recapitulate the short-term effects of endogenous GLP-1. Dipeptidyl peptidase IV (DPP-IV) activity in MLD lymph was lower than in HPV plasma, which presumably contributed to the higher levels of GLP-1 in lymph than in plasma. Insulin and glucose showed similar profiles in MLD lymph and HPV plasma, whereas TG levels were higher in lymph than in plasma. These results indicate that intestinal lymph provides a sensitive readout of intestinal peptide release and potential action, in particular when fat-rich diets are consumed. PMID- 29341825 TI - A predictive model of rat calorie intake as a function of diet energy density. AB - Easy access to high-energy food has been linked to high rates of obesity in the world. Understanding the way that access to palatable (high fat or high calorie) food can lead to overconsumption is essential for both preventing and treating obesity. Although the body of studies focused on the effects of high-energy diets is growing, our understanding of how different factors contribute to food choices is not complete. In this study, we present a mathematical model that can predict rat calorie intake to a high-energy diet based on their ingestive behavior to a standard chow diet. Specifically, we propose an equation that describes the relation between the body weight ( W), energy density ( E), time elapsed from the start of diet ( T), and daily calorie intake ( C). We tested our model on two independent data sets. Our results show that the suggested model can predict the calorie intake patterns with high accuracy. Additionally, the only free parameter of our proposed equation (rho), which is unique to each animal, has a strong correlation with their calorie intake. PMID- 29341827 TI - Multitasking: a challenge for the kidney. PMID- 29341826 TI - u-Opioid receptors inhibit the exercise pressor reflex by closing N-type calcium channels but not by opening GIRK channels in rats. AB - u-Opioid G protein-coupled receptors (MOR) interact with ion channels to decrease neuronal excitability. In humans, intrathecal administration of the MOR agonist fentanyl inhibits the exercise pressor reflex, an effect that can be attributed to either the opening of inward rectifying potassium channels (GIRK) or the closing of N-type calcium channels. The purpose of this study was to determine if the highly selective MOR agonist [d-Ala2, N-MePhe4,Gly-ol]-enkephalin (DAMGO) attenuates the exercise pressor reflex and which of these two channels are responsible for this effect. In decerebrate rats, we determined the effect of intrathecal injection of either tertiapin-LQ, which blocks the GIRK channel or omega-conotoxin-GVIA, which blocks the N-type calcium channel on the exercise pressor reflex, which was evoked by contracting the triceps surae muscles. Initially, we established that intrathecal injection of DAMGO inhibited the exercise pressor reflex relative to no intrathecal injection or intrathecal saline injection ( P < 0.001, n = 5). We then found that intrathecal injection of two doses of tertiapin-LQ (1 and 10 ug) had no effect on the exercise pressor reflex ( n = 6 and n = 7, respectively; P > 0.05). Importantly, neither dose of tertiapin-LQ prevented the DAMGO-induced inhibition of the exercise pressor reflex. Last, we found that intrathecal injection of omega-conotoxin-GVIA markedly attenuated the exercise pressor reflex ( P < 0.001, n = 7). The cardioaccelerator response to contraction did not appear to be effected in any of the experiments. We conclude that N-type voltage-gated calcium channel inhibition appears to be the mechanism by which MOR activation inhibits the exercise pressor reflex in decerebrate rats. PMID- 29341828 TI - Biosensors for spatiotemporal detection of reactive oxygen species in cells and tissues. AB - Redox biology has become a major issue in numerous areas of physiology. Reactive oxygen species (ROS) have a broad range of roles from signal transduction to growth control and cell death. To understand the nature of these roles, accurate measurement of the reactive compounds is required. An increasing number of tools for ROS detection is available; however, the specificity and sensitivity of these tools are often insufficient. Furthermore, their specificity has been rarely evaluated in complex physiological conditions. Many ROS probes are sensitive to environmental conditions in particular pH, which may interfere with ROS detection and cause misleading results. Accurate detection of ROS in physiology and pathophysiology faces additional challenges concerning the precise localization of the ROS and the timing of their production and disappearance. Certain ROS are membrane permeable, and certain ROS probes move across cells and organelles. Targetable ROS probes such as fluorescent protein-based biosensors are required for accurate localization. Here we analyze these challenges in more detail, provide indications on the strength and weakness of current tools for ROS detection, and point out developments that will provide improved ROS detection methods in the future. There is no universal method that fits all situations in physiology and cell biology. A detailed knowledge of the ROS probes is required to choose the appropriate method for a given biological problem. The knowledge of the shortcomings of these probes should also guide the development of new sensors. PMID- 29341829 TI - Climatic modulation of neurotransmitter release in amphibian neuromuscular junctions: role of dynorphin-A. AB - Amphibian neuromuscular junctions (NMJs) become relatively more silent during the dry winter season in Australia. During the dry, calcium sensitivity is reduced, whereas calcium dependence remains unchanged. Endogenous opioid peptides play an important role in the regulation of the physiological functions of active and dormant vertebrates. Previous findings suggest that dynorphin-A is more potent than other opiates in decreasing evoked neurotransmission in amphibian NMJs. Dynorphin-A has been shown not to alter the amplitude or the frequency of miniature quantal neurotransmitter release. In the present study, we report that dynorphin-A exerted a more pronounced inhibitory effect on evoked neurotransmitter release during the dry (hibernating period) when compared with the wet (active period) season. Dynorphin-A increased the frequency and decreased the amplitude of miniature neurotransmitter release only at relatively high concentration during the dry season. In the present study, we propose that dynorphin-A suppresses evoked neurotransmitter release and thus contraction of skeletal muscles, while allowing subthreshold activation of the NMJ by miniature neurotransmission, thus preventing any significant neuromuscular remodeling. The inhibitory effect of dynorphin-A on evoked transmitter release is reduced by increasing the extracellular calcium concentration. PMID- 29341830 TI - Pregnancy-related hormones, progesterone and human chorionic gonadotrophin, upregulate expression of maternal plasma gelsolin. AB - Plasma gelsolin (pGSN), a protein primarily involved in clearance of circulating actin filaments, is an upcoming novel biomarker. Its level changes in multiple disease and injury conditions, attributable mainly to its consumption during actin clearance; the endogenous regulation of its expression, however, remains elusive as well as unexplored. Here, we are reporting the first isolation of the promoter region of pGSN gene and investigation of its transcriptional regulation during pregnancy (a natural process associated with a well-programmed injury course of parturition). Interestingly, two of the pregnancy-related hormones, human chorionic gonadotrophin (hCG) and progesterone, significantly upregulated pGSN promoter activity in muscle cells. This action of both hormones was found to mediate through their respective cellular receptors and involved a contribution of multiple signaling pathways including those of protein kinase A, protein kinase C, epidermal growth factor receptor and prostaglandin-endoperoxidase synthase 2 in the case of hCG-mediated upregulation. This novel upregulation was further supported by elevated levels of endogenous pGSN transcripts as well as secreted protein upon hormonal treatments of muscle cells compared with untreated controls. A participation of pGSN promoter cis-elements, capable of interacting with endogenous transcription factors, Ap1, Sp1, and p300, was also observed during this hormonal upregulation. Additionally, the augmented pGSN levels observed in pregnant mice compared with the control animals further supported an upregulation of this protein during pregnancy, implicating vital role(s) played by pGSN during this period in mammals. PMID- 29341831 TI - Role of Bone-Modifying Agents in Multiple Myeloma: American Society of Clinical Oncology Clinical Practice Guideline Update. AB - Purpose To update guideline recommendations on the role of bone-modifying agents in multiple myeloma. Methods An update panel conducted a targeted systematic literature review by searching PubMed and the Cochrane Library for randomized controlled trials, systematic reviews, meta-analyses, clinical practice guidelines, and observational studies. Results Thirty-five relevant studies were identified, and updated evidence supports the current recommendations. Recommendations For patients with active symptomatic multiple myeloma that requires systemic therapy with or without evidence of lytic destruction of bone or compression fracture of the spine from osteopenia on plain radiograph(s) or other imaging studies, intravenous administration of pamidronate 90 mg over at least 2 hours or zoledronic acid 4 mg over at least 15 minutes every 3 to 4 weeks is recommended. Denosumab has shown to be noninferior to zoledronic acid for the prevention of skeletal-related events and provides an alternative. Fewer adverse events related to renal toxicity have been noted with denosumab compared with zoledronic acid and may be preferred in this setting. The update panel recommends that clinicians consider reducing the initial pamidronate dose in patients with preexisting renal impairment. Zoledronic acid has not been studied in patients with severe renal impairment and is not recommended in this setting. The update panel suggests that bone-modifying treatment continue for up to 2 years. Less frequent dosing has been evaluated and should be considered in patients with responsive or stable disease. Continuous use is at the discretion of the treating physician and the risk of ongoing skeletal morbidity. Retreatment should be initiated at the time of disease relapse. The update panel discusses measures regarding osteonecrosis of the jaw. Additional information is available at www.asco.org/hematologic-malignancies-guidelines and www.asco.org/guidelineswiki . PMID- 29341832 TI - Racial Differences in 21-Gene Recurrence Scores Among Patients With Hormone Receptor-Positive, Node-Negative Breast Cancer. AB - Purpose The 21-gene recurrence score (RS) breast cancer assay is clinically used to quantify risk of 10-year distant recurrence by category (low, < 18; intermediate, 18 to 30; high, >= 31) for treatment management among women diagnosed with hormone receptor-positive, human epidermal growth factor receptor 2-negative, lymph node-negative breast cancer. Although non-Hispanic black (NHB) women have worse prognosis compared with non-Hispanic white (NHW) women, the equivalency of 21-gene RS across racial groups remains unknown. Patients and Methods Using the Metropolitan Detroit Cancer Surveillance System, we identified women who were diagnosed with hormone receptor-positive, human epidermal growth factor receptor 2-negative, lymph node-negative invasive breast cancer between 2010 and 2014. Multinomial logistic regression was used to quantify racial differences in 21-gene RS category. Results We identified 2,216 women (1,824 NHW and 392 NHB) with invasive breast cancer who met clinical guidelines for and underwent 21-gene RS testing. The mean RS was significantly higher in NHBs compared with NHWs (19.3 v 17.0, respectively; P = .0003), where NHBs were more likely to present with high-risk tumors compared with NHWs (14.8% v 8.3%, respectively; P = .0004). These differences were limited to patients younger than 65 years at diagnosis, among whom NHBs had significantly higher RS compared with NHWs (20 to 49 years: 23.6 v 17.3, respectively; P < .001 and 50 to 64 years: 19.6 v 17.4, respectively; P = .023). NHBs remained more likely to have high-risk tumors compared with NHWs after adjusting for age, clinical stage, tumor grade, and histology (odds ratio [OR], 1.75; 95% CI, 1.18 to 2.59). Conclusion NHBs who met clinical criteria for 21-gene RS testing had tumors with higher estimated risks of distant recurrence compared with NHWs. Further study is needed to elucidate whether differences in recurrence are observed for these women, which would have clinical implications for 21-gene RS calibration and treatment recommendations in NHB patients. PMID- 29341833 TI - Immune-Modified Response Evaluation Criteria In Solid Tumors (imRECIST): Refining Guidelines to Assess the Clinical Benefit of Cancer Immunotherapy. AB - Purpose Treating solid tumors with cancer immunotherapy (CIT) can result in unconventional responses and overall survival (OS) benefits that are not adequately captured by Response Evaluation Criteria In Solid Tumors (RECIST) v1.1. We describe immune-modified RECIST (imRECIST) criteria, designed to better capture CIT responses. Patients and Methods Atezolizumab data from clinical trials in non-small-cell lung cancer, metastatic urothelial carcinoma, renal cell carcinoma, and melanoma were evaluated. Modifications to imRECIST versus RECIST v1.1 included allowance for best overall response after progressive disease (PD) and changes in PD definitions per new lesions (NLs) and nontarget lesions. imRECIST progression-free survival (PFS) did not count initial PD as an event if the subsequent scan showed disease control. OS was evaluated using conditional landmarks in patients whose PFS differed by imRECIST versus RECIST v1.1. Results The best overall response was 1% to 2% greater, the disease control rate was 8% to 13% greater, and the median PFS was 0.5 to 1.5 months longer per imRECIST versus RECIST v1.1. Extension of imRECIST PFS versus RECIST v1.1 PFS was associated with longer or similar OS. Patterns of progression analysis revealed that patients who developed NLs without target lesion (TL) progression had a similar or shorter OS compared with patients with RECIST v1.1 TL progression. Patients infrequently experienced a spike pattern (TLs increase, then decrease) but had longer OS than patients without TL reversion. Conclusion Evaluation of PFS and patterns of response and progression revealed that allowance for TL reversion from PD per imRECIST may better identify patients with OS benefit. Progression defined by the isolated appearance of NLs, however, is not associated with longer OS. These results may inform additional modifications to radiographic criteria (including imRECIST) to better reflect efficacy with CIT agents. PMID- 29341834 TI - Improvement in Overall Survival With Carfilzomib, Lenalidomide, and Dexamethasone in Patients With Relapsed or Refractory Multiple Myeloma. AB - Purpose In the ASPIRE study of carfilzomib, lenalidomide, and dexamethasone (KRd) versus lenalidomide plus dexamethasone (Rd) in patients with relapsed or refractory multiple myeloma, progression-free survival was significantly improved in the carfilzomib group (hazard ratio, 0.69; two-sided P < .001). This prespecified analysis reports final overall survival (OS) data and updated safety results. Patients and Methods Adults with relapsed multiple myeloma (one to three prior lines of therapy) were eligible and randomly assigned at a one-to-one ratio to receive KRd or Rd in 28-day cycles until withdrawal of consent, disease progression, or occurrence of unacceptable toxicity. After 18 cycles, all patients received Rd only. Progression-free survival was the primary end point; OS was a key secondary end point. OS was compared between treatment arms using a stratified log-rank test. Results Median OS was 48.3 months (95% CI, 42.4 to 52.8 months) for KRd versus 40.4 months (95% CI, 33.6 to 44.4 months) for Rd (hazard ratio, 0.79; 95% CI, 0.67 to 0.95; one-sided P = .0045). In patients receiving one prior line of therapy, median OS was 11.4 months longer for KRd versus Rd; it was 6.5 months longer for KRd versus Rd among patients receiving >= two prior lines of therapy. Rates of treatment discontinuation because of adverse events (AEs) were 19.9% (KRd) and 21.5% (Rd). Grade >= 3 AE rates were 87.0% (KRd) and 83.3% (Rd). Selected grade >= 3 AEs of interest (grouped terms; KRd v Rd) included acute renal failure (3.8% v 3.3%), cardiac failure (4.3% v 2.1%), ischemic heart disease (3.8% v 2.3%), hypertension (6.4% v 2.3%), hematopoietic thrombocytopenia (20.2% v 14.9%), and peripheral neuropathy (2.8% v 3.1%). Conclusion KRd demonstrated a statistically significant and clinically meaningful reduction in the risk of death versus Rd, improving survival by 7.9 months. The KRd efficacy advantage is most pronounced at first relapse. PMID- 29341835 TI - Increasing Our Understanding of an Overlooked Public Health Epidemic: Traumatic Brain Injuries in Women Subjected to Intimate Partner Violence. PMID- 29341836 TI - A Cohort Study of Patient-Reported Outcomes and Healthcare Utilization in Acute Myeloid Leukemia Patients Receiving Active Cancer Therapy in the Last Six Months of Life. AB - BACKGROUND: Evidence about the unique palliative care needs of patients with acute myeloid leukemia (AML) is limited. Improving the care of these patients will require a better understanding of their unmet needs, including symptom burden at the end of life, and patterns of healthcare utilization. OBJECTIVE: To describe AML patients' experiences in the last six months of life regarding symptom burden, blood product utilization, and use of palliative care services. METHODS: Exploratory analysis of prospectively collected patient-reported outcomes and healthcare utilization data during the last six months of life among 33 AML patients who died during a longitudinal observational study. RESULTS: Symptom burden, quality of life (QOL), and psychological distress worsened with proximity to death. Of the 26 patients with utilization data, most (n = 24; 92.4%) were hospitalized in the last month of life, with 26.9% (n = 7) dying in the intensive care unit. Patients required a median of 16 red blood cell transfusions in the last six months of life, and those with a high transfusion burden in the last month of life had a higher rate of in-hospital death (blood transfusions: p < 0.01; platelet transfusions: p = 0.03). Only six patients enrolled in hospice (23.1%). DISCUSSION: Patients with AML have marked symptoms and QOL impairments that escalate in the final six months of life. Patients entering the healthcare system for active cancer treatment are likely to continue disease-oriented care until death. High rates of hospitalization and blood product transfusion are a direct barrier to transitioning to hospice care. PMID- 29341837 TI - Ocular Permeation of Topical Tazocin and Its Effectiveness in the Treatment of Pseudomonas aeruginosa Induced Keratitis in Rabbits. AB - PURPOSE: Pseudomonas aeruginosa is the most common causative organism for contact lens-associated corneal ulcer and is commonly treated with fluoroquinolones. With the emergence of resistant strains, it is important to investigate alternative therapies. Despite well-established efficacy of tazocin against systemic Pseudomonas infections, its topical use for the treatment of Pseudomonas keratitis has not been described, hence this study was aimed to find the ocular permeation of Tazocin and its efficacy in treating keratitis in rabbit eyes. METHODS: We investigated the ocular permeation of topical tazocin after single drop application in normal rabbit eyes by estimating piperacillin and tazobactam concentrations in cornea, aqueous, and vitreous using a validated LC-MS/MS method. Furthermore, we determined the efficacy of repeated dose administration of tazocin against experimentally induced P. aeruginosa keratitis in rabbits in comparison to moxifloxacin. To determine the efficacy, clinical examination, histopathological examination, and estimation of bacterial load and inflammatory cytokines in cornea were done. RESULTS: Significant corneal concentration of piperacillin and tazobactam was detected in normal rabbit corneas after single dose treatment with tazocin. In rabbits with Pseudomonas-induced keratitis, topical tazocin caused significant clinical and histopathological improvement. This improvement was associated with reduction in corneal bacterial load and inflammatory cytokines. Compared to moxifloxacin 0.5%, tazocin treated group showed greater clinical response which was associated with higher interleukin (IL)-1beta, lower tumor necrosis factor (TNF)-alpha, a comparable level of IL-8, greater reduction in corneal bacterial load, and lesser inflammatory cell infiltration. CONCLUSION: Tazocin showed good ocular penetration and was effective in treatment of Pseudomonas induced keratitis in rabbits. PMID- 29341838 TI - Immobilization of cross-linked tannase enzyme on multiwalled carbon nanotubes and its catalytic behavior. AB - Immobilization of cross-linked tannase on pristine multiwalled carbon nanotubes (MWCNT) was successfully performed. Cross-linking of tannase molecules was made through glutaraldehyde. The immobilized tannase exhibited significantly improved pH, thermal, and recycling stability. The optimal pH for both free and immobilized tannase was observed at pH 5.0 with optimal operating temperature at 30 degrees C. Moreover, immobilized enzyme retained greater biocatalytic activities upon 10 repeated uses compared to free enzyme in solution. Immobilization of tannase was accomplished by strong hydrophobic interaction most likely between hydrophobic amino acid moieties of the glutaraldehyde-cross-linked tannase to the MWCNT. PMID- 29341839 TI - Activation of Frataxin Protein Expression by Antisense Oligonucleotides Targeting the Mutant Expanded Repeat. AB - Friedreich's Ataxia (FA) is an inherited neurologic disorder caused by an expanded GAA repeat within intron 1 of the frataxin (FXN) gene that reduces expression of FXN protein. Agents that increase expression of FXN have the potential to alleviate the disease. We previously reported that duplex RNAs (dsRNAs) and antisense oligonucleotides (ASOs) complementary to the GAA repeat could enhance expression of FXN protein. We now explore the potential of a diverse group of chemically modified dsRNAs and ASOs to define the breadth of repeat-targeted synthetic nucleic acids as a platform for therapeutic development for FA. ASOs and dsRNAs can activate FXN protein expression in FA patient-derived cell lines that possess varied numbers of GAA repeats. Increased FXN protein expression was achieved by ASOs incorporating diverse chemical modifications with low nanomolar potencies, suggesting substantial flexibility in choosing compounds for further chemical optimization and animal studies. Our data encourage further development of ASOs as agents to treat FA. PMID- 29341840 TI - Surgical Site Infections after Open Reduction Internal Fixation for Trauma in Low and Middle Human Development Index Countries: A Systematic Review. AB - BACKGROUND: Musculoskeletal trauma represents a large source of morbidity in low and middle human development index countries (LMHDICs). Open reduction and internal fixation (ORIF) of traumatic long bone fractures definitively manages these injuries and restores function when conducted safely and effectively. Surgical site infections (SSIs) are a common complication of operative fracture fixation, although the risks of infection are ill-defined in LMHDIC. PATIENTS AND METHODS: This study reviewed systematically all studies describing SSI after ORIF in LMDHICs. Studies were reviewed based on their qualitative characteristics, after which a quantitative synthesis of weighted pooled infection rates based on available patient-level data was performed to estimate published incidence of SSI. RESULTS: Forty-two studies met criteria for qualitative review and 32 studies comprising 3,084 operations were included in the quantitative analysis. Among 3,084 operations, the weighted pooled SSI rate was 6.4 infections per 100 procedures (95% confidence interval [CI] 4.6-8.2 infections per 100 procedures). Higher rates of infection were noted among the sub-group of open fractures (95% CI 13.9-23.0 infections per 100 procedures). Lower extremity injuries and procedures utilizing intra-medullary nails also had slightly higher rates of infection versus upper extremity procedures and other fixation devices. CONCLUSIONS: Reported rates of SSI after ORIF are higher in LMHDICs, and may be driven by high rates of infection in the sub-group of open fractures. This study provides a baseline SSI rate obtained from literature produced from LMHDICs. Infection rates are highly dependent on fracture sub-types. PMID- 29341841 TI - Redefining Hypertension - Assessing the New Blood-Pressure Guidelines. PMID- 29341842 TI - Purification and characterization of fibrinolytic protease from Bacillus amyloliquefaciens MCC2606 and analysis of fibrin degradation product by MS/MS. AB - A serine protease with preference for fibrin protein was purified and characterized from Bacillus amyloliquefaciens MCC2606, isolated from dosa batter. The protease was purified using ammonium sulfate precipitation, ion-exchange, and gel filtration chromatography. The degradation activity of the protease toward the fibrin was significantly higher compared with other protein substrates in the study. The molecular weight of the CFR15-protease was estimated to be 32 kDa based on SDS-PAGE. The purified enzyme exhibited both fibrinolytic and fibrinogenolytic activity. The optimum pH and temperature for the activity of the enzyme was found to be 10.5 and 45 degrees C. A significant inhibition was seen with the protease inhibitors phenyl methyl sulphonyl fluoride and ethylene diamine tetra acetic acid and the activity of the enzyme was enhanced in presence of Mn2+. There was an observed increase in vitro activated partial thromboplastin time and prothrombin time of both time and dose dependent study. Among the four chains of fibrin, the beta-chain of fibrin appears to be the primary component and site susceptible for CFR15-protease in early action as indicated by MS/MS analysis of initial degradation products. These results indicated that the CFR15 protease have the potential to be an effective fibrinolytic agent. PMID- 29341843 TI - Smart Care Based on Telemonitoring and Telemedicine for Type 2 Diabetes Care: Multi-Center Randomized Controlled Trial. AB - BACKGROUND: This study was performed to determine the effectiveness of the Smart Care service on glucose control based on telemedicine and telemonitoring compared with conventional treatment in patients with type 2 diabetes. MATERIALS AND METHODS: This 24-week prospective multi-center randomized controlled trial involved 338 adult patients with type 2 diabetes at four university hospitals in South Korea. The patients were randomly assigned to a control group (group A, n = 113), a telemonitoring group (group B, n = 113), or a telemedicine group (group C, n = 112). Patients in the telemonitoring group visited the outpatient clinic regularly, accompanied by an additional telemonitoring service that included remote glucose monitoring with automated patient decision support by text. Remote glucose monitoring was identical in the telemedicine group, but assessment by outpatient visits was replaced by video conferencing with an endocrinologist. RESULTS: The adjusted net reductions in HbA1c concentration after 24 weeks were similar in the conventional, telemonitoring, and telemedicine groups (-0.66% +/- 1.03% vs. -0.66% +/- 1.09% vs. -0.81% +/- 1.05%; p > 0.05 for each pairwise comparison). Fasting glucose concentrations were lower in the telemonitoring and telemedicine groups than in the conventional group. Rates of hypoglycemia were lower in the telemedicine group than in the other two groups, and compliance with medication was better in the telemonitoring and telemedicine than in the conventional group. No serious adverse events were associated with telemedicine. CONCLUSIONS: Telehealthcare was as effective as conventional care at improving glycemia in patients with type 2 diabetes without serious adverse effects. PMID- 29341844 TI - Empiric Antibiotics for Sepsis. AB - BACKGROUND: Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. Early recognition and treatment are the cornerstones of management. METHODS: Review of the English-language literature. RESULTS: For both sepsis and septic shock "antimicrobials [should be] be initiated as soon as possible and within one hour" (Surviving Sepsis Campaign). The risk of progression from severe sepsis to septic shock increases 8% for each hour before antibiotics are started. Selection of antimicrobial agents is based on a combination of patient factors, predicted infecting organism(s), and local microbial resistance patterns. The initial drugs should have activity against typical gram-positive and gram-negative causative micro-organisms. Anaerobic coverage should be provided for intra-abdominal infections or others where anaerobes are significant pathogens. Empiric antifungal or antiviral therapy may be warranted. For patients with healthcare-associated infections, resistant micro organisms will further complicate the choice of empiric antimicrobials. Recommendations are given for specific infections. CONCLUSION: Early administration of broad-spectrum antimicrobial drugs is one of the most important, if not the most important, treatment for patients with sepsis or septic shock. Drugs should be initiated as soon as possible, and the choice of should take into account patient factors, common local pathogens, hospital antibiograms and resistance patterns, and the suspected source of infection. Antimicrobial agent therapy should be de-escalated as soon as possible. PMID- 29341845 TI - Outside in - inside out. Creating focus on the patient - a vaccine company perspective. AB - Involving patients in the development of medicines and vaccines should result in benefits to patients. The vaccine recipient is usually a healthy person. We describe the rationale and implementation of a vaccine company's initiative to encourage employees to identify with patients of the conditions prevented by the vaccines they help to produce. The Voice of the Patient ("VoP"), begun in 2014, is an educational programme directed at the 16,000 employees of a global vaccine company. It engages employees through an understanding that they are all "vaccine patients", and that they can make a difference by considering the impact of decisions made in their day to day work. The initiative includes presentations about vaccine-preventable diseases, global live webcasts with experts and patients, employee visits to healthcare facilities in developing countries, and the production of patient-focused sections in research publications. In a 2017 employee survey, 90% of respondents said they know how their daily work impacts patients and they demonstrate focus on patients. We believe this is preliminary evidence that, by supporting employee awareness of the impact of their individual roles, VoP could be a model for a type of initiative that will contribute to industry's continuing evolution towards more patient-centred healthcare. PMID- 29341847 TI - Interview with Prof. Shannon N. Conley, James Madison University. Why Does Social Context of Technology Matter? PMID- 29341846 TI - Primary Intra-Medullary Nailing of Open Tibia Fractures Caused by Low-Velocity Gunshots: Does Operative Debridement Increase Infection Rates? AB - BACKGROUND: Although gunshot-induced extremity fractures are typically not considered open fractures, there is controversy regarding wound management in the setting of operative fixation to limit infection complications. Previous studies have evaluated the need for a formal irrigation and debridement (I&D) prior to intra-medullary nailing (IMN) of gunshot-induced femur fractures but none have specifically evaluated tibias. By comparing primary IMN for tibial shaft fractures caused by low-velocity firearms additionally treated with a formal operative I&D (group 1) with those without an I&D (group 2), we sought to identify whether there are: differences in treatment group infection rates; particular fracture patterns more prone to infection; and patient characteristics more prone to infections. PATIENTS AND METHODS: Retrospective cohort study at a single level I trauma center of gunshot-induced tibial shaft fractures managed primarily with IMN in 39 patients from October 1, 2008 to October 30, 2016. The following were studied: demographics, follow-up, fracture characteristics, injury management, and patient outcome. Fractures were categorized based on the Orthopaedic Trauma Association (OTA) classification system for diaphyseal tibia/fibula fractures. All patients had intravenous antibiotic agents at presentation and received three days of post-operative intravenous antibiotic agents per institutional protocol. RESULTS: In group 1, 6 of 23 patients (26.1%) developed superficial infections and 4 of 23 patients (17.4%) developed deep infections. In group 2, none of 16 patients (0%) developed superficial infections and 1 patient (6.25%) developed a deep infection, making the total cohort infection rate 28.2% (11/39). Superficial infections were associated with a formal I&D whereas deep infections were not. Tobacco smokers and type 42-A fractures had higher infection rates when treated with a formal I&D. CONCLUSION: A formal debridement, followed by primary IMN in tibia fractures caused by low velocity firearms is associated with an increased risk of superficial infection that is well managed with antibiotic agents, but the incorporation of a debridement does not affect rate of deep infection. A formal I&D during IMN fixation should be avoided in patients that are smokers and have type 42-A tibia fractures as these are factors associated with increased infection rates. PMID- 29341848 TI - Protection of root apex meristem during stress responses. AB - By regulating the levels of nitric oxide (NO) in a cell and tissue specific fashion, Phytoglobins (Pgbs), plant hemoglobin-like proteins, interfere with many NO-mediated pathways participating in developmental and stress-related responses. Recent evidence reveals that one of the functions of Pgbs is to protect the root apical meristem (RAM) from stress conditions by retaining the viability and function of the quiescent center (QC), required to maintain the stem cells in an undifferentiated state and ensure proper tissue patterning and root viability. Based on this and other evidence, it is suggested that Pgbs regulate cell fate by modulating NO homeostasis. PMID- 29341849 TI - Factors affecting occlusion pressure and ischemic preconditioning. AB - PURPOSE: To determine the effect of limb selection (upper/lower), cuff width (small (6 cm)/medium (13 cm) upper; medium/large (18 cm) lower) and anthropometry on arterial occlusion pressure (AOP) in ischemic preconditioning (IPC). METHODS: Twenty athletes (10 females and 10 males) had surface anthropometry and dual x ray absorptiometry (DXA) assessments before using Doppler ultrasound to confirm AOP for each limb. Subsequently, 5 min of occlusion occurred, with near-infrared spectroscopy (NIRS) measuring muscle oxygenation changes. Resultant AOP was compared between sexes, limbs and cuff sizes using linear regression models. RESULTS: Mean AOP was higher in the lower limbs than the upper limbs (161 +/- 18 vs. 133 +/- 12 mm Hg; p < .001), and with smaller cuffs in upper (161 +/- 16 vs. 133 +/- 12 mm Hg; p < .001), but not lower limbs (161 +/- 16 vs. 170 +/- 26 mm Hg; p = .222). Sex and resting systolic blood pressure (SBP) accounted for 77% (small cuff) to 83% (medium cuff) of variance in AOP for upper limbs, and 61% (medium cuff) to 63% (large cuff) in lower limbs. Including anthropometry accounted for 82% (small cuff) to 89% (medium cuff) and 78% (medium cuff) to 79% (large cuff) of variance for upper and lower limbs, respectively. Adding DXA variables improved the explained variance up to 83% (small cuff) to 91% (medium cuff) and 79% (medium cuff) to 87% (large cuff) for upper and lower limbs, respectively. NIRS data showed significantly greater tissue oxygenation changes in upper versus lower limbs. CONCLUSIONS: The AOP in athletes is dependent on limb occluded, sex, SBP, limb and cuff size, and body composition. PMID- 29341850 TI - Clinical Inertia in a Randomized Trial of Telemedicine-Based Chronic Disease Management: Lessons Learned. AB - BACKGROUND: Treatment nonadherence and clinical inertia perpetuate poor cardiovascular disease (CVD) risk factor control. Telemedicine interventions may counter both treatment nonadherence and clinical inertia. INTRODUCTION: We explored why a telemedicine intervention designed to reduce treatment nonadherence and clinical inertia did not improve CVD risk factor control, despite enhancing treatment adherence versus usual care. METHODS: In this analysis of a randomized trial, we studied recipients of the 12-month telemedicine intervention. This intervention comprised two nurse-administered components: (1) monthly self-management education targeting improved treatment adherence; and (2) quarterly medication management facilitation designed to support treatment intensification by primary care (thereby reducing clinical inertia). For each medication management facilitation encounter, we ascertained whether patients met treatment goals, and if not, whether primary care recommended treatment intensification following the encounter. We assessed disease control associated with encounters, where intensification was/was not recommended. RESULTS: We examined 455 encounters across 182 intervention recipients (100% African Americans with type 2 diabetes). Even after accounting for valid reasons for deferring intensification (e.g., treatment nonadherence), intensification was not recommended in 67.5% of encounters in which hemoglobin A1c was above goal, 72.5% in which systolic blood pressure was above goal, and 73.9% in which low-density lipoprotein cholesterol was above goal. In each disease state, treatment intensification was more likely with poorer control. CONCLUSIONS: Despite enhancing treatment adherence, this intervention was unsuccessful in countering clinical inertia, likely explaining its lack of effect on CVD risk factors. We identify several lessons learned that may benefit investigators and healthcare systems. PMID- 29341852 TI - Emissions of organic compounds from produced water ponds II: Evaluation of flux chamber measurements with inverse-modeling techniques. AB - : In this study, the authors apply two different dispersion models to evaluate flux chamber measurements of emissions of 58 organic compounds, including C2-C11 hydrocarbons and methanol, ethanol, and isopropanol from oil- and gas-produced water ponds in the Uintah Basin. Field measurement campaigns using the flux chamber technique were performed at a limited number of produced water ponds in the basin throughout 2013-2016. Inverse-modeling results showed significantly higher emissions than were measured by the flux chamber. Discrepancies between the two methods vary across hydrocarbon compounds and are largest in alcohols due to their physical chemistries. This finding, in combination with findings in a related study using the WATER9 wastewater emission model, suggests that the flux chamber technique may underestimate organic compound emissions, especially alcohols, due to its limited coverage of the pond area and alteration of environmental conditions, especially wind speed. Comparisons of inverse-model estimations with flux chamber measurements varied significantly with the complexity of pond facilities and geometries. Both model results and flux chamber measurements suggest significant contributions from produced water ponds to total organic compound emission from oil and gas productions in the basin. IMPLICATIONS: This research is a component of an extensive study that showed significant amount of hydrocarbon emissions from produced water ponds in the Uintah Basin, Utah. Such findings have important meanings to air quality management agencies in developing control strategies for air pollution in oil and gas fields, especially for the Uintah Basin in which ozone pollutions frequently occurred in winter seasons. PMID- 29341853 TI - Influence of high heat load on flow and containment of an inclined air-curtain (IAC) fume hood. AB - The inclined air-curtain (IAC) fume hood has been reported to have "almost null leakage"[1] at low suction flow rates when operated at regular temperatures. However, previous research has not investigated the performance or optimized operating parameters when a high heat load is used in the IAC fume hood. For the present work, the effects of a high heat load on the flow field and contaminant leakage characteristics of the IAC fume hood were examined. The heat load was supplied to an IAC hood according to the standard method of EN14175-7:2012. The laser-assisted smoke flow visualization technique was employed to identify the characteristic flow patterns. The standard tracer-gas concentration test method (EN14175-3:2003) was used to examine the leakage levels of the IAC fume hood under static conditions, sash movement, and simulated walk-by conditions. When the IAC fume hood was operated at a high heat load, the static test results showed negligibly small leakage levels at a face velocity greater than or equal to only 0.19 m/s (37.4 ft/min). The sash movement and simulated walk-by test results showed that to obtain negligibly small leakage levels at high heat load operation, the IAC fume hood required a face velocity greater than or equal to 0.32 m/s (63 ft/min). In addition, the IAC fume hood exhibited a superior hood containment performance with low energy consumption when compared with conventional fume hoods operated at a high heat load. PMID- 29341851 TI - Underutilization of Supplemental Magnetic Resonance Imaging Screening Among Patients at High Breast Cancer Risk. AB - BACKGROUND: Women at high lifetime breast cancer risk may benefit from supplemental breast magnetic resonance imaging (MRI) screening, in addition to routine mammography screening for earlier cancer detection. MATERIALS AND METHODS: We performed a cross-sectional study of 422,406 women undergoing routine mammography screening across 86 Breast Cancer Surveillance Consortium (BCSC) facilities during calendar year 2012. We determined availability and use of on site screening breast MRI services based on woman-level characteristics, including >20% lifetime absolute risk using the National Cancer Institute risk assessment tool. Multivariate analyses were performed to determine sociodemographic characteristics associated with on-site screening MRI use. RESULTS: Overall, 43.9% (2403/5468) of women at high lifetime risk attended a facility with on-site breast MRI screening availability. However, only 6.6% (158/2403) of high-risk women obtained breast MRI screening within a 2-year window of their screening mammogram. Patient factors associated with on-site MRI screening use included younger (<40 years) age (odds ratio [OR] = 2.39, 95% confidence interval [CI]: 1.34-4.21), family history (OR = 1.72, 95% CI: 1.13 2.63), prior breast biopsy (OR = 2.09, 95% CI: 1.22-3.58), and postsecondary education (OR = 2.22, 95% CI: 1.04-4.74). CONCLUSIONS: While nearly half of women at high lifetime breast cancer risk undergo routine screening mammography at a facility with on-site breast MRI availability, supplemental breast MRI remains widely underutilized among those who may benefit from earlier cancer detection. Future studies should evaluate whether other enabling factors such as formal risk assessment and patient awareness of high lifetime breast cancer risk can mitigate the underutilization of supplemental screening breast MRI. PMID- 29341854 TI - Separation of brown carbon from black carbon for IMPROVE and Chemical Speciation Network PM2.5 samples. AB - : The replacement of the Desert Research Institute (DRI) model 2001 with model 2015 thermal/optical analyzers (TOAs) results in continuity of the long-term organic carbon (OC) and elemental carbon (EC) database, and it adds optical information with no additional carbon analysis effort. The value of multiwavelength light attenuation is that light absorption due to black carbon (BC) can be separated from that of brown carbon (BrC), with subsequent attribution to known sources such as biomass burning and secondary organic aerosols. There is evidence of filter loading effects for the 25% of all samples with the highest EC concentrations based on the ratio of light attenuation to EC. Loading corrections similar to those used for the seven-wavelength aethalometer need to be investigated. On average, nonurban Interagency Monitoring of PROtected Visual Environments (IMPROVE) samples show higher BrC fractions of short wavelength absorption than urban Chemical Speciation Network (CSN) samples, owing to greater influence from biomass burning and aged aerosols, as well as to higher primary BC contributions from engine exhaust at urban sites. Sequential samples taken during an Everglades National Park wildfire demonstrate the evolution from flaming to smoldering combustion, with the BrC fraction increasing as smoldering begins to dominate the fire event. IMPLICATIONS: The inclusion of seven wavelengths in thermal/optical carbon analysis of speciated PM2.5 (particulate matter with an aerodynamic diameter <=2.5 MUm) samples allows contributions from biomass burning and secondary organic aerosols to be estimated. This separation is useful for evaluating control strategy effectiveness, identifying exceptional events, and determining natural visibility conditions. PMID- 29341855 TI - Probabilistic assessment of the potential indoor air impacts of vent-free gas heating appliances in energy-efficient homes in the United States. AB - : Use of vent-free gas heating appliances for supplemental heating in U.S. homes is increasing. However, there is currently a lack of information on the potential impact of these appliances on indoor air quality for homes constructed according to energy-efficient and green building standards. A probabilistic analysis was conducted to estimate the impact of vent-free gas heating appliances on indoor air concentrations of carbon monoxide (CO), nitrogen dioxide (NO2), carbon dioxide (CO2), water vapor, and oxygen in "tight" energy-efficient homes in the United States. A total of 20,000 simulations were conducted for each Department of Energy (DOE) heating region to capture a wide range of home sizes, appliance features, and conditions, by varying a number of parameters, e.g., room volume, house volume, outdoor humidity, air exchange rates, appliance input rates (Btu/hr), and house heat loss factors. Predicted airborne levels of CO were below the U.S. Environmental Protection Agency (EPA) standard of 9 ppm for all modeled cases. The airborne concentrations of NO2 were below the U.S. Consumer Product Safety Commission (CPSC) guideline of 0.3 ppm and the Health Canada benchmark of 0.25 ppm in all cases and were below the World Health Organization (WHO) standard of 0.11 ppm in 99-100% of all cases. Predicted levels of CO2 were below the Health Canada standard of 3500 ppm for all simulated cases. Oxygen levels in the room of vent-free heating appliance use were not significantly reduced. The great majority of cases in all DOE regions were associated with relative humidity (RH) levels from all indoor water vapor sources that were less than the EPA recommended 70% RH maximum to avoid active mold and mildew growth. The conclusion of this investigation is that when installed in accordance with the manufacturer's instructions, vent-free gas heating appliances maintain acceptable indoor air quality in tight energy-efficient homes, as defined by the standards referenced in this report. IMPLICATIONS: Probabilistic modeling of indoor air concentrations of carbon monoxide (CO), nitrogen dioxide (NO2), carbon dioxide (CO2), water vapor, and oxygen associated with use of vent-free gas heating appliances provides new data indicating that uses of these devices are consistent with acceptable indoor air quality in "tight" energy-efficient homes in the United States. This study will provide authoritative bodies such as the International Code Council with definitive information that will assist in the development of future versions of national building codes, and will provide evaluation of the performance of unvented gas heating products in energy conservation homes. PMID- 29341857 TI - Development of visibility forecasting modeling framework for the Lower Fraser Valley of British Columbia using Canada's Regional Air Quality Deterministic Prediction System. AB - : Visibility degradation, one of the most noticeable indicators of poor air quality, can occur despite relatively low levels of particulate matter when the risk to human health is low. The availability of timely and reliable visibility forecasts can provide a more comprehensive understanding of the anticipated air quality conditions to better inform local jurisdictions and the public. This paper describes the development of a visibility forecasting modeling framework, which leverages the existing air quality and meteorological forecasts from Canada's operational Regional Air Quality Deterministic Prediction System (RAQDPS) for the Lower Fraser Valley of British Columbia. A baseline model (GM IMPROVE) was constructed using the revised IMPROVE algorithm based on unprocessed forecasts from the RAQDPS. Three additional prototypes (UMOS-HYB, GM-MLR, GM-RF) were also developed and assessed for forecast performance of up to 48 hr lead time during various air quality and meteorological conditions. Forecast performance was assessed by examining their ability to provide both numerical and categorical forecasts in the form of 1-hr total extinction and Visual Air Quality Ratings (VAQR), respectively. While GM-IMPROVE generally overestimated extinction more than twofold, it had skill in forecasting the relative species contribution to visibility impairment, including ammonium sulfate and ammonium nitrate. Both statistical prototypes, GM-MLR and GM-RF, performed well in forecasting 1-hr extinction during daylight hours, with correlation coefficients (R) ranging from 0.59 to 0.77. UMOS-HYB, a prototype based on postprocessed air quality forecasts without additional statistical modeling, provided reasonable forecasts during most daylight hours. In terms of categorical forecasts, the best prototype was approximately 75 to 87% correct, when forecasting for a condensed three-category VAQR. A case study, focusing on a poor visual air quality yet low Air Quality Health Index episode, illustrated that the statistical prototypes were able to provide timely and skillful visibility forecasts with lead time up to 48 hr. IMPLICATIONS: This study describes the development of a visibility forecasting modeling framework, which leverages the existing air quality and meteorological forecasts from Canada's operational Regional Air Quality Deterministic Prediction System. The main applications include tourism and recreation planning, input into air quality management programs, and educational outreach. Visibility forecasts, when supplemented with the existing air quality and health based forecasts, can assist jurisdictions to anticipate the visual air quality impacts as perceived by the public, which can potentially assist in formulating the appropriate air quality bulletins and recommendations. PMID- 29341856 TI - KIX domain of AtMed15a, a Mediator subunit of Arabidopsis, is required for its interaction with different proteins. AB - Med15 is an important subunit of Mediator Tail module and is characterized by a KIX domain present towards amino terminal. In yeast and metazoans, Med15 KIX domain has been found to interact with various transcription factors regulating several processes including carbohydrate metabolism, lipogenesis, stress response and multidrug resistance. Mechanism of Med15 functioning in Arabidopsis is largely unknown. In this study, interactome of KIX domain of Arabidopsis Med15, AtMed15a, was characterized. We found 45 proteins that interact with AtMed15a KIX domain, including 11 transcription factors, 3 single strand nucleic acid-binding proteins and 1 splicing factor. The third helix of the KIX domain was found to be involved in most of the interactions. Mapping of the regions participating in the interactions revealed that the activation domain of a transcription factor, UKTF1 interacted with AtMed15a KIX domain. Thus, our results suggest that in Arabidopsis, activation domain of transcription factors target KIX domain of AtMed15a for their transcriptional responses. PMID- 29341858 TI - Respiratory assessment of refractory ceramic fibers in a heating technician population. AB - Refractory ceramic fibers (RCF) have been extensively used for insulation in condensing boilers. The aim of this study was to evaluate the respiratory exposure to these fibers among maintenance heating technicians. We first created a working group (Carsat Brittany and Finistere Occupational Health Services) and carried out a sampling strategy. Atmospheric measurements were done during work tasks, and filters were analyzed by phase contrast microscopy (PCM) and scanning electron microscopy (SEM) in French approved laboratories. Four companies were included for a total of 15 days of work. During those 15 workdays, 12 SEM and 21 PCM samples were taken and analyzed. The phase contrast microscopy and SEM average results were 0.04 and 0.004 fibers/cm3, respectively. In conclusion, the study confirms heating technician RCF respiratory exposure during maintenance work for both condensation gas boilers and atmospheric boilers. Collective and individual prevention measures should be implemented along with appropriate medical follow-up. PMID- 29341859 TI - An indoor air quality evaluation in a residential retrofit project using spray polyurethane foam. AB - Understanding of indoor air quality (IAQ) during and after spray polyurethane foam (SPF) application is essential to protect the health of both workers and building occupants. Previous efforts such as field monitoring, micro chamber/spray booth emission studies, and fate/transport modeling have been conducted to understand the chemical exposure of SPF and guide risk mitigation strategies. However, each type of research has its limitation and can only reveal partial information on the relationship between SPF and IAQ. A comprehensive study is truly needed to integrate the experimental design and analytical testing methods in the field/chamber studies with the mathematical tools employed in the modeling studies. This study aims to bridge this gap and provide a more comprehensive understanding on the impact of SPF to IAQ. The field sampling plan of this research aims to evaluate the airborne concentrations of methylene diphenyl diisocyanate (MDI), formaldehyde, acetaldehyde, propionaldehyde, tris(1 chlor-2-propyl)phosphate (TCPP), trans-1-chloro-3,3,3-trifluoropropene (SolsticeTM), and airborne particles. Modifications to existing MDI sampling and analytical methods were made so that level of quantification was improved. In addition, key fate and transport modeling input parameters such as air changes per hour and airborne particle size distribution were measured. More importantly, TCPP accumulation onto materials was evaluated, which is important to study the fate and transport of semi-volatile organic compounds. The IAQ results showed that after spray application was completed in the entire building, airborne concentrations decreased for all chemicals monitored. However, it is our recommendation that during SPF application, no one should return to the application site without proper personal protection equipment as long as there are active spray activities in the building. The comparison between this field study and a recent chamber study proved surface sorption and particle deposition is an important factor in determining the fate of airborne TCPP. The study also suggests the need for further evaluation by employing mathematical models, proving the data generated in this work as informative to industry and the broader scientific community. PMID- 29341860 TI - Risk management of free radicals involved in air travel syndromes by antioxidants. AB - Frequent air travelers and airplane pilots may develop various types of illnesses. The environmental risk factors associated with air travel syndromes (ATS) or air travel-related adverse health outcomes raised concerns and need to be assessed in the context of risk management and public health. Accordingly, the aim of the present review was to determine ATS, risk factors, and mechanisms underlying ATS using scientific data and information obtained from Medline, Toxline, and regulatory agencies. Additional information was also extracted from websites of organizations, such as the International Air Transport Association (IATA), International Association for Medical Assistance to Travelers (IAMAT), and International Civil Aviation Organization (ICAO). Air travelers are known to be exposed to environmental risk factors, including circadian rhythm disruption, poor cabin air quality, mental stress, high altitude conditions, hormonal dysregulation, physical inactivity, fatigue, biological infections, and alcoholic beverage consumption. Consequences of ATS attributed to air travel include sleep disturbances (e.g., insomnia), mental/physical stress, gastrointestinal disorders, respiratory diseases, circulatory-related dysfunction, such as cardiac arrest and thrombosis and, at worst, mechanical and terrorism-related airplane crashes. Thus safety measures in the cabin before or after takeoff are undertaken to prevent illnesses or accidents related to flight. In addition, airport quarantine systems are strongly recommended to prepare for any ultimate adverse circumstances. Routine monitoring of environmental risk factors also needs to be considered. Frequently, the mechanisms underlying these adverse manifestations involve free radical generation. Therefore, antioxidant supplementation may help to reduce or prevent adverse outcomes by mitigating health risk factors associated with free radical generation. PMID- 29341861 TI - Genome-wide survey reveals dynamic effects of folate supplement on DNA methylation and gene expression during C2C12 differentiation. AB - Folic acid supplements taken during pregnancy can prevent neural tube defects and other developmental abnormalities. Here, we explored the effects of folate supplementation on gene expression and DNA methylation during C2C12 differentiation. Based on the folic acid concentration, this study comprised three groups: low folate (L), normal folate (N), and high-folate supplement (H). Our analyses revealed that differentiation and the mRNA expression of the gene myogenin in C2C12 cell were enhanced by folic acid; however, the overall methylation percentage in myogenin promoter between different treatment groups was not significantly different ( P > 0.05). The results of MeDIP-chip showed that hundreds of differentially methylated regions (DMRs) were identified between every two groups in both promoter and CpG islands, respectively. Genes with DMRs between N and L groups were mainly enriched in the processes of cell differentiation and cell development, whereas those with DMRs between H and N groups were frequently enriched in cellular process/cycle and cell metabolic processes. In addition, correlation analysis between methylation profile and expression profile revealed that some genes were regulated by methylation status directly. Together, these analyses suggest that folate deficiency and supplementation can influence the differentiation, genome-wide DNA methylation level and the expression of myogenesis-related genes including myogenin in the C2C12 cell line. PMID- 29341862 TI - Identification of three genetic variants as novel susceptibility loci for body mass index in a Japanese population. AB - Recent genome-wide association studies have identified various obesity or metabolic syndrome (MetS) susceptibility loci. However, most studies were conducted in a cross-sectional manner. To address this gap, we performed a longitudinal exome-wide association study to identify susceptibility loci for obesity and MetS in a Japanese population. We traced clinical data of 6,022 Japanese subjects who had annual health check-ups for several years (mean follow up period, 5 yr) and genotyped ~244,000 genetic variants. The association of single nucleotide polymorphisms (SNPs) with body mass index (BMI) or the prevalence of obesity and MetS was examined in a generalized estimating equation model. Our longitudinal exome-wide association studies detected 21 BMI- and five MetS-associated SNPs (false discovery rate, FDR <0.01). Among these SNPs, 16 have not been previously implicated as determinants of BMI or MetS. Cross-sectional data for obesity- and MetS-related phenotypes in 7,285 Japanese subjects were examined in a replication study. Among the 16 SNPs, three ( rs9491140 , rs145848316 , and rs7863248 ) were related to BMI in the replication cohort ( P < 0.05). In conclusion, three SNPs [ rs9491140 of NKAIN2 (FDR = 0.003, P = 1.9 * 10 5), rs145848316 of KMT2C (FDR = 0.007, P = 4.5 * 10-5), and rs7863248 of AGTPBP1 (FDR = 0.006, P = 4.2 * 10-5)] were newly identified as susceptibility loci for BMI. PMID- 29341863 TI - Distinct gene signatures predict insulin resistance in young mice with high fat diet-induced obesity. AB - Highly inbred C57BL/6 mice show wide variation in their degree of insulin resistance in response to diet-induced obesity even though they are almost genetically identical. Here we employed transcriptional profiling by RNA sequencing (RNA-Seq) of visceral adipose tissue (VAT) and liver in young mice to determine how gene expression patterns correlate with the later development of high-fat diet (HFD)-induced insulin resistance in adulthood. To accomplish this goal, we partially removed and banked tissues from pubertal mice. Mice subsequently received HFD followed by metabolic phenotyping to identify two well defined groups of mice with either severe or mild insulin resistance. The remaining tissues were collected at study termination. We then applied RNA-Seq to generate transcriptome profiles associated with worsened insulin resistance before and after the initiation of HFD. We found 244 up- and 109 downregulated genes in VAT of the most insulin-resistant mice even before HFD exposure. Downregulated genes included serine protease inhibitor, major urinary protein, and complement genes; upregulated genes represented mostly muscle constituents. These gene families were also differentially expressed in VAT of mice with high or low insulin resistance after HFD. Inflammatory genes predicted insulin resistance in liver, but not in VAT. In contrast, when we compared VAT of all mice before and after HFD, differentially expressed genes were predominantly composed of immune response genes. These data show a distinct set of gene transcripts in young mice correlates with the severity of insulin resistance in adulthood, providing insight into the pathogenesis of insulin resistance in early life. PMID- 29341864 TI - Comparison of acute kidney injury of different etiology reveals in-common mechanisms of tissue damage. AB - Acute kidney injury (AKI) is a syndrome of reduced glomerular filtration rate and urine production caused by a number of different diseases. It is associated with renal tissue damage. This tissue damage can cause tubular atrophy and interstitial fibrosis that leads to nephron loss and progression of chronic kidney disease (CKD). This review describes the in-common mechanisms behind tissue damage in AKI caused by different underlying diseases. Comparing six high quality microarray studies of renal gene expression after AKI in disease models (gram-negative sepsis, gram-positive sepsis, ischemia-reperfusion, malignant hypertension, rhabdomyolysis, and cisplatin toxicity) identified 5,254 differentially expressed genes in at least one of the AKI models; 66% of genes were found only in one model, showing that there are unique features to AKI depending on the underlying disease. There were in-common features in the form of four genes that were differentially expressed in all six models, 49 in at least five, and 215 were found in common between at least four models. Gene ontology enrichment analysis could be broadly categorized into the injurious processes hypoxia, oxidative stress, and inflammation, as well as the cellular outcomes of cell death and tissue remodeling in the form of epithelial-to-mesenchymal transition. Pathway analysis showed that MYC is a central connection in the network of activated genes in-common to AKI, which suggests that it may be a central regulator of renal gene expression in tissue injury during AKI. The outlining of this molecular network may be useful for understanding progression from AKI to CKD. PMID- 29341865 TI - Evidence of genetic predisposition for metabolically healthy obesity and metabolically obese normal weight. AB - Obesity has evolved into a global pandemic that constitutes a major threat to public health. The majority of obesity-related health care costs are due to cardiometabolic complications, such as insulin resistance, dyslipidemia, and hypertension, which are risk factors for Type 2 diabetes and cardiovascular disease. However, many obese individuals, often called metabolically healthy obese (MHO), seem to be protected from these cardiometabolic complications. Conversely, there is a group of individuals who suffer from cardiometabolic complications despite being of normal weight; a condition termed metabolically obese normal weight (MONW). Recent large-scale genomic studies have provided evidence that a number of genetic variants show an association with increased adiposity but a favorable cardiometabolic profile, an indicator for the genetic basis of the MHO and MONW phenotypes. Many of these loci are located in or near genes that implicate pathways involved in adipogenesis, fat distribution, insulin signaling, and insulin resistance. It has been suggested that a threshold for subcutaneous adipose tissue expandability may be at play in the manifestation of MHO and MONW, where expiry of adipose tissue storage capacity could lead to ectopic lipid accumulation in non-adipose tissues such as liver, muscle, heart, and pancreatic beta cells. Understanding the genetic aspects of the mechanisms that underpin MHO and MONW is crucial to define appropriate public health action points and to develop effective intervention measures. PMID- 29341866 TI - Identifying low-grade cellular rejection after heart transplantation in children by using gene expression profiling. AB - Endomyocardial biopsy (EMB) remains the gold standard for detecting rejection after heart transplantation but is costly and invasive. This study aims to distinguish no rejection (0R) from low-grade rejection (1R/2R) after heart transplantation in children by using global gene expression profiling in blood. A total of 106 blood samples with corresponding EMB from 18 children who underwent heart transplantation from 2011 to 2014 were analyzed (18 baseline/pretransplantation samples, 88 EMB samples). Corresponding rejection grades for each blood sample were 0R in 39% (34/88), 1R in 51% (45/88), and 2R in 10% (9/88). mRNA from each sample was sequenced. Differential expression analysis was performed at the gene level. A k-nearest neighbor (kNN) analysis was applied to the most differentially expressed (DE) genes to identify rejection after transplantation. Mean age at transplantation was 10.0 +/- 5.4 yr. Expression of B cell and T cell receptor sequences was used to measure the effect of posttransplantation immunosuppression. Follow-up samples had lower levels of immunoglobulin gene families compared with pretransplantation ( P < 3E-5) (lower numbers of activated B cells). T cell receptor alpha and beta gene families had decreased expression in 0R samples compared with pretransplantation ( P < 4E-5) but recovered to near baseline levels in 1R/2R samples. kNN using the most DE gene (MKS1) and k = 9 nearest neighbors correctly identified 83% (73/88) of 1R/2R compared with 0R by leave-one-out cross validation. Using a genomic approach we can distinguish low-grade cellular allograft rejection (1R/2R) from no rejection (0R) after heart transplantation in children despite a wide age range. PMID- 29341868 TI - Transcriptional evidence for cross talk between JA and ET or SA during root-knot nematode invasion in tomato. AB - studies have demonstrated that jasmonic acid (JA) reduces root-knot nematode (RKN) infections in tomato plants. RKN invasion is sensed by roots, and root derived JA signaling activates systemic defense responses, though this is poorly understood. Here, we investigate variations in the RKN-induced transcriptome in scion phloem between two tomato plant grafts: CM/CM ( Lycopersicum esculentum Mill. cv. Castlemart) and CM/ spr2 (a JA-deficient mutant). A total of 8,716 genes were differentially expressed in the scion phloem of the plants with JA deficient rootstock via RNA sequencing. Among these genes, 535 upregulated and 153 downregulated genes with high copy numbers were identified as significantly differentially expressed. Among them, 34 predicted transcription factor genes were identified. Additionally, we used real-time quantitative PCR to analyze the expression patterns of 42 genes involved in the JA, ethylene, or salicylic acid pathway in phloem under RKN infection. The results suggested that in the absence of JA signaling, the ET signaling pathway is enhanced after RKN infection; however, alterations in the SA signaling pathway were not observed. PMID- 29341867 TI - Genetic and microbiome influence on lipid metabolism and dyslipidemia. AB - Disruption in the metabolism of lipids is broadly classified under dyslipidemia and relates to the concentration of lipids in the blood. Dyslipidemia is a predictor of cardio-metabolic disease including obesity. Traditionally, the large interindividual variation has been related to genetic factors and diet. Genome wide association studies have identified over 150 loci related to abnormal lipid levels, explaining ~40% of the total variation. Part of the unexplained variance has been attributed to environmental factors including diet, but the extent of the dietary contribution remains unquantified. Furthermore, other factors are likely to influence lipid metabolism including the gut microbiome, which plays an important role in the digestion of different dietary components including fats and polysaccharides. Here we describe the contributing role of host genetics and the gut microbiome to dyslipidemia and discuss the potential therapeutic implications of advances in understanding the gut microbiome to the treatment of dyslipidemia. PMID- 29341870 TI - Easy or Hard: It Makes a Tremendous Difference. PMID- 29341869 TI - A Report of the 24th Annual Congress on Women's Health-Workshop on Transforming Women's Health: From Research to Practice. AB - Sex and gender are critical contributors to overall health and disease, and considering both in research informs the development of prevention strategies and treatment interventions for both men and women. The National Institutes of Health (NIH) Office of Research on Women's Health sponsored a preconference workshop on this topic at the 24th Annual Women's Health Congress, which was held in Crystal City, VA, in April 2016. The workshop featured presentations by NIH intramural and extramural scientists who presented data on a variety of topics including polycystic kidney disease, vaccine protection, depression, drug addiction, and cardiovascular disease. In this publication, we discuss the major points of each presentation and demonstrate the importance of considering sex and gender in biomedical research. PMID- 29341872 TI - A CqFerritin protein inhibits white spot syndrome virus infection via regulating iron ions in red claw crayfish Cherax quadricarinatus. AB - It is well known that iron is an essential element for all living organism. The intracellular iron availability is also important for the host's innate immune response to various pathogens, in which the iron homeostasis can be regulated by ferritin due to its iron storage property. In this study, a full-length cDNA sequence of ferritin (named as CqFerritin) was identified with 1410 bp from red claw crayfish Cherax quadricarinatus, which contained an open reading frame of 513 bp, encoding 170 amino acids with a conserved ferritin domain. Tissue distribution analysis demonstrated that CqFerritin was widely expressed in various tissues with high presence in haemocyte, haematopoietic tissue (Hpt) and heart, while lowest expression in hepatopancreas. In addition, loss-of-function of CqFerritin by gene silencing resulted in significantly higher expression of an envelope protein VP28 of white spot syndrome virus (WSSV) in red claw crayfish Hpt cell cultures, indicating the potential antiviral response of CqFerritin. To further explore the effect on WSSV replication by CqFerritin, recombinant CqFerritin protein (rCqFerritin) was transfected into Hpt cells followed by WSSV infection. Importantly, the replication of WSSV was obviously decreased in Hpt cells if transfected with rCqFerritin protein, suggesting that CqFerritin had clearly negative effect on WSSV infection. Furthermore, intracellular accumulation of iron ions was found to promote the WSSV replication in a dose dependent manner, illustrating that the iron level regulated by CqFerritin was likely to be vital for WSSV infection in red claw crayfish. Taken together, these data suggest that CqFerritin plays an important role in immune defense against WSSV infection in a crustacean C. quadricarinatus. PMID- 29341873 TI - Differences in heart rate reserve of similar physical activities during work and in leisure time - A study among Danish blue-collar workers. AB - Recent studies suggest that while leisure-time physical activity (LTPA) promotes general health, engaging in occupational physical activity (OPA) may have negative health consequences. It has been hypothesized that the different health effects from OPA and LTPA can be explained by differences in physical activity (PA) intensity in these two domains. To assess the intensity of OPA and LTPA, we aimed to study the percentage heart rate reserve (%HRR) during similar types of OPA and LTPA during workdays. Data from the NOMAD study on Danish blue-collar workers (n=124) with objective measurements of PA (using accelerometers) and heart rate (using heart rate monitors) for 4 workdays were analysed. Activities of sitting, standing, moving, walking, and stair climbing were identified and %HRR in each of these activities was determined for work and leisure. %HRR was significantly higher during OPA than LTPA. These differences were more pronounced in men than in women. Although not statistically significant in the fully adjusted model, we found indications that these differences were more pronounced in those with low compared to high fitness. To our knowledge, this is the first study with objective measurements showing that %HRR is higher during the same gross-body postural activities when performed at work compared to leisure-time during workdays. This elevated intensity may help explaining the negative health consequences of engagement in high levels of OPA. Future guidelines should distinguish OPA from LTPA, possibly by advising workers to remain active during their leisure time, in particular when they are highly active at work. PMID- 29341874 TI - Validation of an ICD code for accurately identifying emergency department patients who suffer an out-of-hospital cardiac arrest. AB - AIM: International classification of disease (ICD-9) code 427.5 (cardiac arrest) is utilized to identify cohorts of patients who suffer out-of-hospital cardiac arrest (OHCA), though the use of ICD codes for this purpose has never been formally validated. We sought to validate the utility of ICD-9 code 427.5 by identifying patients admitted from the emergency department (ED) after OHCA. METHODS: Adult visits to a single ED between January 2007 and July 2012 were retrospectively examined and a keyword search of the electronic medical record (EMR) was used to identify patients. Cardiac arrest was confirmed; and ICD-9 information and location of return of spontaneous circulation (ROSC) were collected. Separately, the EMR was searched for patients who received ICD-9 code 427.5. The kappa coefficient (kappa) was calculated, as was the sensitivity and specificity of the code for identifying OHCA. RESULTS: The keyword search identified 1717 patients, of which 385 suffered OHCA and 333 were assigned the code 427.5. The agreement between ICD-9 code and cardiac arrest was excellent (kappa = 0.895). The ICD-9 code 427.5 was both specific (99.4%) and sensitive (86.5%). Of the 52 cardiac arrests that were not identified by ICD-9 code, 33% had ROSC before arrival to the ED. When searching independently on ICD-9 code, 347 patients with ICD-9 code 427.5 were found, of which 320 were "true" arrests. This yielded a positive predictive value of 92% for ICD-9 code 427.5 in predicting OHCA. CONCLUSIONS: ICD-9 code 427.5 is sensitive and specific for identifying ED patients who suffer OHCA with a positive predictive value of 92%. PMID- 29341875 TI - Beyond JAAD April 2018: Articles of interest to dermatologists from the nondermatologic literature. PMID- 29341876 TI - Probing and characterizing the high specific sequences of ssDNA aptamer against SGIV-infected cells. AB - As the major viral pathogen of grouper aquaculture, Singapore grouper iridovirus (SGIV) has caused great economic losses in China and Southeast Asia. In the previous study, we have generated highly specific ssDNA aptamers against SGIV infected grouper spleen cells (GS) by Systematic Evolution of Ligands by Exponential Enrichment technology (SELEX), in which Q2 had the highest binding affinity of 16.43 nM. In this study, we would try to identify the specific sequences in the aptamer Q2 that exhibited the high binding affinity to SGIV infected cells by truncating the original Q2 into some different specific segments. We first evaluated the specificity and binding affinity of these truncated aptamers to SGIV-infected cells by flow cytometry, fluorescent imaging of cells and aptamer-based enzyme-linked apta-sorbent assay (ELASA). We then performed cytotoxicity analysis, assessment of the inhibitory effects upon SGIV infection and the celluar internalization kinetics of each truncated aptamer. Compared to the initial Q2, one of the truncated aptamer Q2-C5 showed a 3-fold increase in the binding affinity for SGIV-infected cells, and held more effective inhibitory effects, higher internalization kinetics and stability. Hence, the aptamer's truncated methods could be applied in the research of identifying aptamer's key sequences. The shorter, structure optimizing aptamer showed more excellent performance over the originally selected aptamer, which could potentially be applied in developing commercial detection probes for the early and rapid diagnosis of SGIV infection, and highly specific therapeutic drugs against SGIV infection. PMID- 29341877 TI - Characterizing the effects of insertion of a 5.2 kb region of a VACV genome, which contains known immune evasion genes, on MVA immunogenicity. AB - Modified Vaccinia virus Ankara (MVA) is an attenuated Vaccinia virus (VACV) that is a popular vaccine vector candidate against many different pathogens. Its replication-restricted nature makes it a safe vaccine. However, higher doses or multiple boosts of MVA are necessary to elicit an immune response similar to wild type VACV. Multiple strategies have been used to create modified MVA viruses that remain safe, but have increased immunogenicity. For example, one common strategy is to delete MVA immunomodulatory proteins in hopes of increasing the host immune response. Here, we take the opposite approach and examine, for the first time, how re-introduction of a 5.2 kb region of VACV DNA (that codes for multiple immunomodulatory proteins) into MVA alters viral immunogenicity. Since antigen presenting cells (APCs) are critical connectors between the innate and adaptive immune system, we examined the effect of MVA/5.2 kb infection in these cells in vitro. MVA/5.2 kb infection decreased virus-induced apoptosis and virus-induced NF-kappaB activation. MVA.5.2 kb infection decreased TNF production. However, MVA/5.2 kb infection did not alter APC maturation or IL-6 and IL-8 production in vitro. We further explored MVA/5.2 kb immunogenicity in vivo. VACV-specific CD8+ T cells were decreased after in vivo infection with MVA/5.2 kb versus MVA, suggesting that the MVA/5.2 kb construct is less immunogenic than MVA. These results demonstrate the limitations of in vitro studies for predicting the effects of genetic manipulation of MVA on immunogenicity. Although MVA/5.2 kb did not enhance MVA's immunogenicity, this study examined an unexplored strategy for optimizing MVA, and the insight gained from these results can help direct how to modify MVA in the future. PMID- 29341878 TI - Concentrations of arsenic and lead in rice (Oryza sativa L.) in Iran: A systematic review and carcinogenic risk assessment. AB - Exposure to heavy metals such as arsenic (As), lead (Pb), and cadmium (Cd) in either the short or the long term can cause cancers in humans. Dietary intake and consumption of rice (Oryza sativa L.) is increasing in Iran, and several studies on the concentration of heavy metals in rice have been carried out in this country in recent years. In this perspective, the main objective of the present study was to investigate, even via a meta-analysis of the existing literature, the presence of As and Pb in rice from many geographical areas in Iran, as well as to estimate the carcinogenic risk of these heavy metals in rice consumers. The results of the present ten years-spanning systematic review indicate that 21 reports, collecting a total of 2088 samples, were performed between 2008 and October 2017. The minimum and maximum concentration of As was observed in the Golestan area (0.01 +/- 0.01 mg/kg d.w) and the Gillan region (3 mg/kg d.w); and Pb in the Shahrekord (0.07 +/- 0.02 mg/kg d.w) and Mazandaran (35 mg/kg d.w). The meta-analysis of data showed that pooled concentration of As in the rice was 0.04 (95%CI: 0.02-0.06 mg/kg d.w), which resulted lower than the National Standard (NS) limits. However, the pooled concentration of Pb in the rice was 0.38 (95%CI: 0.25-0.5 mg/kg d.w), i.e., higher than NS limits. The heterogeneity was significant between As (I2 = 63%, P value = .003) and Pb (I2 = 96%, P value < .001) studies. The carcinogenic risk assessment showed that minimum and maximum incremental lifetime cancer risk (ILCR) of As was in the 45-54 (4.53 * 10-2) and 15-24 (5.50 * 10-2) year age groups consumers; and Pb, 45-54 (2.442 * 10-3) and 15-24 (2.96 * 10-3), respectively. The overall carcinogenesis risk of As (4.864 * 10-2) was 18.5 times higher than Pb (2.623 * 10-3). All age groups consumers of rice content of As and Pb are at considerable carcinogenesis risk (ILCR > 10-3). Therefore a decreased level of heavy metals in rice cultivation should be encouraged and performed in next planning. PMID- 29341880 TI - Targetable long non-coding RNAs in cancer treatments. AB - Aberrant expression of many long non-coding RNAs has been observed in various types of cancer, implicating their crucial roles in tumorigenesis and cancer progression. Emerging knowledge with regard to the critical physiological and pathological roles of long non-coding RNAs in cancers makes them potential targets in cancer treatments. In this review, we present a summary of the relatively well studied long non-coding RNAs that are involved in oncogenesis and outline their functions and functional mechanisms. Recent findings that may be utilized in therapeutic intervention are also highlighted. With the fast development in nucleic acid-based therapeutic reagents that can target disease associated RNAs, lncRNAs should be explored as potential targets in cancer treatments. PMID- 29341879 TI - Mechanisms of mitochondrial toxicity of the kinase inhibitors ponatinib, regorafenib and sorafenib in human hepatic HepG2 cells. AB - Previous studies have shown that certain kinase inhibitors are mitochondrial toxicants. In the current investigation, we determined the mechanisms of mitochondrial impairment by the kinase inhibitors ponatinib, regorafenib, and sorafenib in more detail. In HepG2 cells cultured in galactose and exposed for 24 h, all three kinase inhibitors investigated depleted the cellular ATP pools at lower concentrations than cytotoxicity occurred, compatible with mitochondrial toxicity. The kinase inhibitors impaired the activity of different complexes of the respiratory chain in HepG2 cells exposed to the toxicants for 24 h and in isolated mouse liver mitochondria exposed acutely. As a consequence, they increased mitochondrial production of ROS in HepG2 cells in a time- and concentration-dependent fashion and decreased the mitochondrial membrane potential concentration-dependently. In HepG2 cells exposed for 24 h, they induced mitochondrial fragmentation, lysosome content and mitophagy as well as mitochondrial release of cytochrome c, leading to apoptosis and/or necrosis. In conclusion, the kinase inhibitors ponatinib, regorafenib, and sorafenib impaired the function of the respiratory chain, which was associated with increased ROS production and a drop in the mitochondrial membrane potential. Despite activation of defense measures such as mitochondrial fission and mitophagy, some cells were liquidated concentration-dependently by apoptosis or necrosis. Mitochondrial dysfunction may represent a toxicological mechanism of hepatotoxicity associated with certain kinase inhibitors. PMID- 29341881 TI - Clinical Implications of Technological Advances in Screening for Atrial Fibrillation. AB - The incidence of atrial fibrillation (AF) continues to increase worldwide as people live longer. AF is the leading cause of stroke among patients older than 75 years and is responsible for at least 15% of all strokes. Industry has responded to this problem with a plethora of monitoring devices. These include single lead ECG adhesive sensors, implantable loop recorders, smartphone attachments and wearables. This review will concentrate on clinical studies using these technologies. There are wearables including watches and watch-like devices that will be mentioned but these have not been validated for clinical use. This review will begin with a background regarding screening for AF and at the end present findings from Cardiac Implantable devices that could influence use of the new mobile health technologies. PMID- 29341882 TI - Development and evaluation of a website for surveillance of healthcare-associated urinary tract infections in Australia. AB - Phase II of the Surveillance to Reduce Urinary Tract Infections project piloted a website for point prevalence surveys of healthcare-associated (HAUTI) and catheter-associated urinary tract infection in Australian hospitals and aged care homes. This report describes development and evaluation of the website for online data collection. Evaluation findings from 38 data collectors indicated that most respondents found website registration and web form use easy (N = 22; 58% and N = 16; 43%, respectively). The need for improved computer literacy skills and automated data systems were highlighted. This study demonstrated a novel approach for Australian HAUTI data collection; however, refinements are needed before national roll-out. PMID- 29341883 TI - Brain-region-specific Molecular Responses to Maternal Separation and Social Defeat Stress in Mice. AB - The association between stress and mental illness has been well documented, but the molecular consequences of repeated exposure to stress have not been completely identified. The present study sought to elucidate the combinatorial effects of early-life maternal separation stress and adult social defeat stress on alterations in signal transduction and gene expression that have been previously implicated in susceptibility to psychosocial stress. Molecular analyses were performed in the prelimbic/infralimbic cortex, amygdala, and nucleus accumbens, three brain regions that have been suggested to play critical roles in determining stress responses. The current data reveal that both maternal separation and social defeat significantly impact the expression of genes involved in histone methylation and the beta-catenin-, endogenous opioid-, neurotrophin-, and glucocorticoid signaling pathways. Although the effects of maternal separation and social defeat were largely non-overlapping, a subset of genes in each brain region were governed by additive, opposing, or other types of interactions between these stress paradigms, thus highlighting potential molecular mechanisms through which these stressors might coordinately regulate brain function and behavior. PMID- 29341884 TI - Acute Stress Persistently Alters Locus Coeruleus Function and Anxiety-like Behavior in Adolescent Rats. AB - Stress is a physiological state characterized by altered neuroendocrine signaling, behavioral arousal, and anxiety. Chronic or traumatic stress may predispose individuals for multiple somatic and psychiatric illnesses. The locus coeruleus (LC) is a major node in the stress response that integrates input from multiple stress responsive neural circuits and releases norepinephrine (NE) throughout the central nervous system (CNS) to promote vigilance and anxiety. Many mood disorders associated with prior stress are characterized by chronically altered noradrenergic signaling, yet the long-term impact of an acute stressor on LC function is not clear. To determine how acute stress could affect anxiety-like behavior as well as LC function at immediate and extended time points, rats underwent simultaneous exposure to physical restraint and predator odor. Rats underwent behavioral testing immediately or one week after stressor exposure and were then sacrificed for whole-cell patch-clamp recordings of LC neurons. Stress caused an immediate increase in anxiety-like behaviors in the elevated plus maze (EPM), as well decreased excitatory synaptic transmission and increased spontaneous discharge in LC neurons. These effects persisted for seven days after stress. Importantly, the excitability of LC neurons was increased one week post stress, but not immediately after, suggesting a long-term adaptation by the system. Rats tested in the open field one week after stress also showed increased anxiety-like behaviors. These findings show that a single acute stressor is capable of precipitating long-lasting changes in the LC function that may be related to some of the behavioral effects of stress, potentially contributing to stress-induced disease pathogenesis. PMID- 29341885 TI - Deletion of the Duffy antigen receptor for chemokines (DARC) promotes insulin resistance and adipose tissue inflammation during high fat feeding. AB - OBJECTIVE: Inflammation in adipose tissues in obesity promotes insulin resistance and metabolic disease. The Duffy antigen receptor for chemokines (DARC) is a promiscuous non-signaling receptor expressed on erythrocytes and other cell types that modulates tissue inflammation by binding chemokines such as monocyte chemoattractant protein-1 (MCP-1) and by acting as a chemokine reservoir. DARC allelic variants are common in humans, but the role of DARC in modulating obesity related metabolic disease is unknown. METHODS: We examined body weight gain, tissue adiposity, metabolic parameters and inflammatory marker expression in wild type and DARC knockout mice fed a chow diet (CD) and high fat diet (HFD). RESULTS: Compared to wild-type mice, HFD-fed DARC knockout mice developed glucose intolerance and insulin resistance independent of increases in body weight or adiposity. Interestingly, insulin sensitivity was also diminished in lean male DARC knockout mice fed a chow diet. Insulin production was not reduced by DARC gene deletion, and plasma leptin levels were similar in HFD fed wild-type and DARC knockout mice. MCP-1 levels in plasma rose significantly in the HFD fed wild type mice, but not in the DARC knockout mice. Conversely, adipose tissue MCP-1 levels were higher, and more macrophage crown-like structures were detected, in the HFD fed DARC knockout mice as compared with the wild-type mice, consistent with augmented adipose tissue inflammation that is not accurately reflected by plasma levels of DARC-bound MCP-1 in these mice. CONCLUSIONS: These findings suggest that DARC regulates metabolic function and adipose tissue inflammation, which may impact obesity-related disease in ethnic populations with high frequencies of DARC allelic variants. PMID- 29341886 TI - Regulation of HSF1 protein stabilization: An updated review. AB - Heat shock factor 1 (HSF1) is a transcriptional factor that determines the efficiency of heat shock responses (HSRs) in the cell. Given its function has been extensively studied in recent years, HSF1 is considered a potential target for the treatment of disorders associated with protein aggregation. The activity of HSF1 is traditionally regulated at the transcriptional level in which the transactivation domain of HSF1 is modified by extensive array of pos translational modifications, such as phosphorylation, sumoylation, and acetylation. Recently, HSF1 is also reported to be regulated at the monomeric level. For example, in neurodegenerative disorders such as Huntington's disease and Alzheimer's disease the expression levels of the monomeric HSF1 are found to be reduced markedly. Methylene blue (MB) and riluzole, two clinical available drugs, increase the amount of the monomeric HSF1 in both cells and animals. Since the monomeric HSF1 not only determines the efficiency of HSRs, but exerts protective effects in a trimerization-independent manner, increasing the amount of the monomeric HSF1 via stabilization of HSF1 may be an alternative strategy for the amplification of HSR. However, to date we have no outlined knowledges about HSF1 protein stabilization, though studies regarding the regulation of the monomeric HSF1 have been documented in recent years. Here, we summarize the regulation of the monomeric HSF1 by some previously reported factors, such as synuclein, Huntingtin (Htt), TDP-43, unfolded protein response (UPR), MB and doxorubicin (DOX), as well as their possible mechanisms, aiming to push the understanding about HSF1 protein stabilization. PMID- 29341887 TI - Molecular Basis of Substrate Polyspecificity of the Candida albicans Mdr1p Multidrug/H+ Antiporter. AB - The molecular basis of polyspecificity of Mdr1p, a major drug/H+ antiporter of Candida albicans, is not elucidated. We have probed the nature of the drug binding pocket by performing systematic mutagenesis of the 12 transmembrane segments. Replacement of the 252 amino acid residues with alanine or glycine yielded 2/3 neutral mutations while 1/3 led to the complete or selective loss of resistance to drugs or substrates transported by the pump. Using the GlpT-based 3D-model of Mdr1p, we roughly categorized these critical residues depending on their type and localization, 1 degrees / main structural impact ("S" group), 2 degrees / exposure to the lipid interface ("L" group), 3 degrees / buried but not facing the main central pocket, inferred as critical for the overall H+/drug antiport mechanism ("M" group) and finally 4 degrees / buried and facing the main central pocket ("B" group). Among "B" category, 13 residues were essential for the large majority of drugs/substrates, while 5 residues were much substrate specific, suggesting a role in governing polyspecificity (P group). 3D superposition of the substrate-specific MFS Glut1 and XylE with the MDR substrate polyspecific MdfA and Mdr1p revealed that the B group forms a common substrate interaction core while the P group is only found in the 2 MDR MFS transporters, distributed into 3 areas around the B core. This specific pattern has let us to propose that the structural basis for polyspecificity of MDR MFS transporters is the extended capacity brought by residues located at the periphery of a binding core to accomodate compounds differing in size and type. PMID- 29341888 TI - Protection against the Neurotoxic Effects of beta-Amyloid Peptide on Cultured Neuronal Cells by Lovastatin Involves Elevated Expression of alpha7 Nicotinic Acetylcholine Receptors and Activating Phosphorylation of Protein Kinases. AB - The treatment of neurodegenerative diseases with statins has drawn increasing attention, but the related molecular mechanisms remain elusive. To examine the pleiotropic cholesterol-independent effects of statins in connection with the treatment of Alzheimer disease, we probed the influence of lovastatin on the metabolism of amyloid precursor protein (APP), expression of nicotinic acetylcholine receptors (nAChRs), and activity of mitogen-activated protein kinase (MAPK) in primary cultured neurons and SH-SY5Y cells overexpressing human APP670/671. Lovastatin attenuated the neurotoxic effects of beta-amyloid peptide (Abeta) and affected the metabolism of APP, reducing levels of Abeta1 to Abeta42 and beta-site amyloid precursor protein-cleaving enzyme 1; enhancing those of alphaAPP, disintegrin metalloproteinase domain-containing protein 10, and beta site amyloid precursor protein-cleaving enzyme 2; and up-regulating expression of alpha7 nAChR and stimulating phosphorylation of extracellular signal-regulated kinase (ERK)1/2. Interestingly, methyllycaconitine, an antagonist of alpha7 nAChR, attenuated this effect on alphaAPP, but not on phospho-ERK1/2; whereas U0126, an inhibitor of MAPK/ERK kinase/ERK, blocked both the elevated expression of alpha7 nAChR and enhanced secretion of alphaAPP. Our findings indicate that lovastatin up-regulates expression of alpha7 nAChR by a mechanism involving activation of the MAPK/ERK pathway, which may result in diminished production of Abeta. PMID- 29341889 TI - Adventitial Activation in the Pathogenesis of Injury-Induced Arterial Remodeling: Potential Implications in Transplant Vasculopathy. AB - Transplant vasculopathy is one of the major causes of chronic rejection after solid organ transplantation. The pathogenic mechanisms of transplant vasculopathy are still poorly understood. Herein, we summarize current evidence suggesting that activation of the tunica adventitia may be involved in the pathogenesis of transplant vasculopathy. Adventitia is an early responder to various vascular injuries and plays an integral role in eliciting vascular inflammation and remodeling. Accumulation of macrophages in the adventitia promotes the development of vascular remodeling by releasing a variety of paracrine factors that have profound impacts on vascular mural cells. Targeting adventitial macrophages has been shown to be effective for repressing transplantation-induced arterial remodeling in animal models. Adventitia also fosters angiogenesis, and neovascularization of the adventitial layer may facilitate the transport of inflammatory cells through the arterial wall. Further investigations are warranted to clarify whether inhibiting adventitial oxidative stress and/or adventitial neovascularization are better strategies for preventing transplant vasculopathy. PMID- 29341890 TI - Periodontal diseases and adverse pregnancy outcomes: Is there a role for vitamin D? AB - Studies have shown a relationship between maternal periodontal diseases (PDs) and premature delivery. PDs are commonly encountered oral diseases which cause progressive damage to the periodontal ligament and alveolar bones, leading to loss of teeth and oral disabilities. PDs also adversely affect general health by worsening of cardiovascular and metabolic diseases. Moreover, maternal PDs are thought to be related to increasing the frequency of preterm-birth with low birth weight (PBLBW) in new-borns. Prematurity and immaturity are the leading causes of prenatal and infant mortality and is a major public health problem around the world. Inflamed periodontal tissues generate significantly high levels of proinflammatory cytokines that may have systemic effects on the host mother and the fetus. In addition, the bacteria that cause PDs produce endotoxins which can harm the fetus. Furthermore, studies have shown that microorganisms causing PDs can get access to the bloodstream, invading uterine tissues, to induce PBLBW. Another likely mechanism that connects PDs with adverse pregnancy outcome is maternal vitamin D status. A role of inadequate vitamin D status in the genesis of PDs has been reported. Administration of vitamin D supplementation during pregnancy could reduce the risk of maternal infections and adverse pregnancy outcomes. As maternal PDs are significant risk factors for adverse pregnancy outcome, preventive antenatal care for pregnant women in collaboration with the obstetric and dental professions are required. PMID- 29341891 TI - Long-term treadmill exercise improves memory impairment through restoration of decreased synaptic adhesion molecule 1/2/3 induced by transient cerebral ischemia in the aged gerbil hippocampus. AB - Exercise improves cognitive impairments induced by transient cerebral ischemia, and modulates synaptic adhesion molecules. In this study, we investigated effects of long-term treadmill exercise on cognitive impairments and its relation to changes of synaptic cell adhesion molecule (SynCAM) 1/2/3 in the hippocampus after 5 min of transient cerebral ischemia in aged gerbils. Animals were assigned to sedentary and exercised groups, given treadmill exercise for 4 consecutive weeks from 5 days after transient ischemia, and evaluated cognitive function through passive avoidance test and Morris water maze test. SynCAM 2 protein levels were determined in the hippocampus by western blot. In addition, neuronal and synaptic changes were examined by NeuN immunohistochemistry, and SynCAM 1/2/3 and MAP2 double immunofluorescence, respectively. We found that transient cerebral ischemia led to neuronal death in the CA1 area and dentate gyrus, and impaired -memory function; however, 4 weeks of treadmill exercise improved ischemia-induced memory impairment. In addition, SynCAM 1/2/3 and SynCAM 2 expression in the hippocampus was significantly decreased in the sedentary group after transient cerebral ischemia; however, SynCAM 1/2/3 expressionand and SynCAM 2 protein level was significantly increased in the ischemic group with exercise. These results suggest that long-term treadmill exercise improves memory impairment through the restoration of decreased SynCAM 1/2/3 expression in the hippocampus induced by transient cerebral ischemia in the aged gerbil. PMID- 29341892 TI - Premature aging in behavior and immune functions in tyrosine hydroxylase haploinsufficient female mice. A longitudinal study. AB - Aging is accompanied by impairment in the nervous, immune, and endocrine systems as well as in neuroimmunoendocrine communication. In this context, there is an age-related alteration of the physiological response to acute stress, which is modulated by catecholamine (CA), final products of the sympathetic-adreno medullary axis. The involvement of CA in essential functions of the nervous system is consistent with the neuropsychological deficits found in mice with haploinsufficiency (hemizygous; HZ) of tyrosine hydroxylase (TH) enzyme (TH-HZ). However, other possible alterations in regulatory systems have not been studied in these animals. The aim of the present work was to analyze whether adult TH-HZ female mice presented the impairment of behavioral traits and immunological responses that occurs with aging and whether they had affected their mean lifespan. ICR-CD1 female TH-HZ and wild type (WT) mice were used in a longitudinal study. Behavioral tests were performed on adult and old mice in order to evaluate their sensorimotor abilities and exploratory capacity, as well as anxiety-like behaviors. At the ages of 2 +/- 1, 4 +/- 1, 9 +/- 1, 13 +/- 1 and 20 +/- 1 months, peritoneal leukocytes were extracted and several immune functions were assessed (phagocytic capacity, Natural Killer (NK) cytotoxicity, and lymphoproliferative response to lipopolysaccharide (LPS) and concanavalin A (ConA)). In addition, several oxidative stress parameters (catalase, glutathione reductase and glutathione peroxidase activities, and reduced glutathione (GSH) concentrations as antioxidant compounds as well as xanthine oxidase activity, oxidized glutathione (GSSG) concentrations, and GSSG/GSH ratio as oxidants) were analyzed. As inflammatory stress parameters TNF-alpha and IL-10 concentrations, and TNF-alpha/IL-10 ratios as inflammatory/anti-inflammatory markers, were measured. Animals were maintained in standard conditions until their natural death. The results indicate that adult TH-HZ mice presented worse sensorimotor abilities and exploratory capacity than their WT littermates as well as greater anxiety-like behaviors. With regards to the immune system, adult TH-HZ animals exhibited lower values of phagocytic capacity, NK cytotoxicity, and lymphoproliferative response to LPS and ConA than WT mice. Moreover, immune cells of TH-HZ mice showed higher oxidative and inflammatory stress than those of WT animals. Although these differences between TH-HZ and WT, in general, decreased with aging, this premature immunosenescence and impairment of behavior of TH-HZ mice was accompanied by a shorter mean lifespan in comparison to WT counterparts. In conclusion, haploinsufficiency of th gene in female mice appears to provoke premature aging of the regulatory systems affecting mean lifespan. PMID- 29341893 TI - Targeting BDNF modulation by plant glycosides as a novel therapeutic strategy in the treatment of depression. AB - Current therapies in clinical practice face strong criticism regarding their efficacy, and side effects, which forced the neuro-researchers to discover novel agents with different mechanistic insights. Glycosides are naturally-occurring plant secondary metabolites with significant medicinal potential and clinical scope as antidepressant. The aim of this review is to focus on the antidepressant effects of glycosides in preclinical studies, with an emphasis on the possible mechanisms. The literature search revealed that only a few phytoglycosides have been evaluated for their relevance in depression alleviation. Through preclinical tests, it has come forth that the efficacy is mediated by the modulation of brain derived neurotrophic factor (BDFN) in the hippocampus, that is known for promoting synaptic efficacy, neuronal connectivity and neuroplasticity. Thus, attempting the upregulation of BDNF expression by plant glycosides can be a novel therapeutic strategy for the treatment of depression. The outcome of this review can stimulate neuroscientists to evaluate plant-derived glycosides for the treatment of depression, as these structurally-complex and diverse molecules, might usher in a new paradigm in the treatment of depression, with a better efficacy and tolerability. PMID- 29341894 TI - Protective effects of antioxidin-RL from Odorrana livida against ultraviolet B irradiated skin photoaging. AB - The unavoidable daily exposure of the skin to ultraviolet (UV) B radiation is proven to have deleterious effects. The action mechanism of antioxidin-RL, an antioxidant peptide purified from skin secretions of frog Odorrana livida with amino acid sequence of AMRLTYNRPCIYAT, is well characterized by NMR titration and mutation based on ABTS+ scavenging activities. In order to explore the protective effects of antioxidin-RL against UVB-irradiated skin photoaging, cell uptake assay was used to detect the location of antioxidin-RL molecules serving various biological functions in the cells. The protective effects of antioxidin-RL on UVB induced response were examined in vitro and in vivo. Results showed that antioxidin-RL successfully penetrated the cell membrane and exerted a positive effect on cell migration. It also effectively inhibited the UVB-induced excessive production of ROS and prevented oxidative damage to DNAs and proteins. Moreover, the mRNA expressions of MMP-1, VEGF, COX-2, and pro-inflammatory cytokines, such as IL-6 and TNF-alpha in antioxidin-RL-treated HaCaT and HSF cells were significantly down-regulated whereas those of FGF, procollagen type I and TGF beta1 up-regulated. Antioxidin-RL effectively prevented UVB-induced erythema on mouse skin, thereby inhibiting UVB-induced skin thickening and inflammation and increasing collagen deposition as demonstrated by in vivo experiments. Hence, the novel antioxidant peptide antioxidin-RL can effectively reduce UVB-induced skin reactions in vivo and in vitro, providing potential molecules against UVB-induced inflammation and photoaging. PMID- 29341895 TI - Prenatal paracetamol exposure and child neurodevelopment: A review. AB - BACKGROUND: The non-prescription medication paracetamol (acetaminophen, APAP) is currently recommended as a safe pain and fever treatment during pregnancy. However, recent studies suggest a possible association between APAP use in pregnancy and offspring neurodevelopment. OBJECTIVES: To conduct a review of publications reporting associations between prenatal APAP use and offspring neurodevelopmental outcomes. METHODS: Relevant sources were identified through a key word search of multiple databases (Medline, CINAHL, OVID and TOXNET) in September 2016. All English language observational studies of pregnancy APAP and three classes of neurodevelopmental outcomes (autism spectrum disorder (ASD), attention deficit hyperactivity disorder (ADHD), and intelligence quotient (IQ)) were included. One reviewer (AZB) independently screened all titles and abstracts, extracted and analyzed the data. RESULTS: 64 studies were retrieved and 55 were ineligible. Nine prospective cohort studies fulfilled all inclusion criteria. Data pooling was not appropriate due to heterogeneity in outcomes. All included studies suggested an association between prenatal APAP exposure and the neurodevelopmental outcomes; ADHD, ASD, or lower IQ. Longer duration of APAP use was associated with increased risk. Associations were strongest for hyperactivity and attention-related outcomes. Little modification of associations by indication for use was reported. CONCLUSIONS: Together, these nine studies suggest an increased risk of adverse neurodevelopmental outcomes following prenatal APAP exposure. Further studies are urgently needed with; precise indication of use and exposure assessment of use both in utero and in early life. Given the current findings, pregnant women should be cautioned against indiscriminate use of APAP. These results have substantial public health implications. PMID- 29341896 TI - Luteinizing hormone signaling phosphorylates and activates the cyclic GMP phosphodiesterase PDE5 in mouse ovarian follicles, contributing an additional component to the hormonally induced decrease in cyclic GMP that reinitiates meiosis. AB - Prior to birth, oocytes within mammalian ovarian follicles initiate meiosis, but then arrest in prophase until puberty, when with each reproductive cycle, one or more follicles are stimulated by luteinizing hormone (LH) to resume meiosis in preparation for fertilization. Within preovulatory follicles, granulosa cells produce high levels of cGMP, which diffuses into the oocyte to maintain meiotic arrest. LH signaling restarts meiosis by rapidly lowering the levels of cGMP in the follicle and oocyte. Part of this decrease is mediated by the dephosphorylation and inactivation the NPR2 guanylyl cyclase in response to LH, but the mechanism for the remainder of the cGMP decrease is unknown. At least one cGMP phosphodiesterase, PDE5, is activated by LH signaling, which would contribute to lowering cGMP. PDE5 exhibits increased cGMP-hydrolytic activity when phosphorylated on serine 92, and we recently demonstrated that LH signaling phosphorylates PDE5 on this serine and increases its activity in rat follicles. To test the extent to which this mechanism contributes to the cGMP decrease that restarts meiosis, we generated a mouse line in which serine 92 was mutated to alanine (Pde5-S92A), such that it cannot be phosphorylated. Here we show that PDE5 phosphorylation is required for the LH-induced increase in cGMP-hydrolytic activity, but that this increase has only a modest effect on the LH-induced cGMP decrease in mouse follicles, and does not affect the timing of meiotic resumption. Though we show that the activation of PDE5 is among the mechanisms contributing to the cGMP decrease, these results suggest that another cGMP phosphodiesterase is also activated by LH signaling. PMID- 29341897 TI - Toxicity and toxicokinetics of Amanita exitialis in beagle dogs. AB - In this study, the toxicology of A. exitialis, a lethal mushroom found in China, and the toxicokinetics of peptide toxins contained in it were evaluated. Beagles were fed A. exitialis powder (20 or 60 mg/kg) in starch capsules, after which they were assessed for signs of toxicity, as well as biochemical and pathological changes. Ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry was used to assay the peptide toxins. The total peptide toxins in A. exitialis was 3482.6 +/- 124.94 mg/kg. The beagles showed signs of toxicity, such as vomiting and diarrhea, at 12-48 h following ingestion of A. exitialis. Furthermore, alanine transaminase and aspartate transaminase levels in plasma, as well as prothrombin time and activated partial thromboplastin time peaked at 36 h post A. exitialis ingestion. Furthermore, total bilirubin and alkaline phosphatase levels peaked at 48 h after A. exitialis ingestion. Three dogs that were administered 60 mg/kg A. exitialis died at 24-72 h after ingesting the capsules. Additionally, liver histopathological examinations showed hemorrhagic necrosis of hepatocytes. alpha-Amanitin, beta-amanitin, and phallacidin were rapidly absorbed and eliminated from plasma after A. exitialis was ingested. A long latency period (12-24 h post A. exitialis ingestion) was observed in the dogs before the onset of gastrointestinal symptoms. There was acute liver damage thereafter. Gastric lavage and enhanced plasma clearance methods such as hemodialysis, hemoperfusion, or plasma exchange may be ineffective in removing amatoxins from blood at 12 h post A. exitialis ingestion. Enhanced excretion of amatoxins in urine could be effective within 2 days after ingestion of A. exitialis because amatoxins in 0-2 d urine accounted for more than 90% of the total urine excretion. PMID- 29341899 TI - Accurate prediction of vaccine stability under real storage conditions and during temperature excursions. AB - Due to their thermosensitivity, most vaccines must be kept refrigerated from production to use. To successfully carry out global immunization programs, ensuring the stability of vaccines is crucial. In this context, two important issues are critical, namely: (i) predicting vaccine stability and (ii) preventing product damage due to excessive temperature excursions outside of the recommended storage conditions (cold chain break). We applied a combination of advanced kinetics and statistical analyses on vaccine forced degradation data to accurately describe the loss of antigenicity for a multivalent freeze-dried inactivated virus vaccine containing three variants. The screening of large amounts of kinetic models combined with a statistical model selection approach resulted in the identification of two-step kinetic models. Predictions based on kinetic analysis and experimental stability data were in agreement, with approximately five percentage points difference from real values for long-term stability storage conditions, after excursions of temperature and during experimental shipments of freeze-dried products. Results showed that modeling a few months of forced degradation can be used to predict various time and temperature profiles endured by vaccines, i.e. long-term stability, short time excursions outside the labeled storage conditions or shipments at ambient temperature, with high accuracy. Pharmaceutical applications of the presented kinetics-based approach are discussed. PMID- 29341898 TI - Induction of alpha-synuclein pathology in the enteric nervous system of the rat and non-human primate results in gastrointestinal dysmotility and transient CNS pathology. AB - Alpha-Synuclein (alpha-syn) is by far the most highly vetted pathogenic and therapeutic target in Parkinson's disease. Aggregated alpha-syn is present in sporadic Parkinson's disease, both in the central nervous system (CNS) and peripheral nervous system (PNS). The enteric division of the PNS is of particular interest because 1) gastric dysfunction is a key clinical manifestation of Parkinson's disease, and 2) Lewy pathology in myenteric and submucosal neurons of the enteric nervous system (ENS) has been referred to as stage zero in the Braak pathological staging of Parkinson's disease. The presence of Lewy pathology in the ENS and the fact that patients often experience enteric dysfunction before the onset of motor symptoms has led to the hypothesis that alpha-syn pathology starts in the periphery, after which it spreads to the CNS via interconnected neural pathways. Here we sought to directly test this hypothesis in rodents and non-human primates (NHP) using two distinct models of alpha-syn pathology: the alpha-syn viral overexpression model and the preformed fibril (PFF) model. Subjects (rat and NHP) received targeted enteric injections of PFFs or adeno associated virus overexpressing the Parkinson's disease associated A53T alpha-syn mutant. Rats were evaluated for colonic motility monthly and sacrificed at 1, 6, or 12 months, whereas NHPs were sacrificed 12 months following inoculation, after which the time course and spread of pathology was examined in all animals. Rats exhibited a transient GI phenotype that resolved after four months. Minor alpha syn pathology was observed in the brainstem (dorsal motor nucleus of the vagus and locus coeruleus) 1 month after PFF injections; however, no pathology was observed at later time points (nor in saline or monomer treated animals). Similarly, a histopathological analysis of the NHP brains revealed no pathology despite the presence of robust alpha-syn pathology throughout the ENS which persisted for the entirety of the study (12 months). Our study shows that induction of alpha-syn pathology in the ENS is sufficient to induce GI dysfunction. Moreover, our data suggest that sustained spread of alpha-syn pathology from the periphery to the CNS and subsequent propagation is a rare event, and that the presence of enteric alpha-syn pathology and dysfunction may represent an epiphenomenon. PMID- 29341901 TI - A small peptide derived from BMP-9 can increase the effect of bFGF and NGF on SH SY5Y cells differentiation. AB - The current aging of the world population will increase the number of people suffering from brain degenerative diseases such as Alzheimer's disease (AD). There are evidence showing that the use of growth factors such as BMP-9 could restored cognitive function as it acts on many AD hallmarks at the same time. However, BMP-9 is a big protein expensive to produce that can hardly access the central nervous system. We have therefore developed a small peptide, SpBMP-9, derived from the knuckle epitope of BMP-9 and showed its therapeutic potential in a previous study. Since it is known that the native protein, BMP-9, can act in synergy with other growth factors in the context of AD, here we study the potential synergistic effect of various combinations of SpBMP-9 with bFGF, EGF, IGF-2 or NGF on the cholinergic differentiation of human neuroblastoma cells SH SY5Y. We found that, in opposition to IGF-2 or EGF, the combination of SpBMP-9 with bFGF or NGF can stimulate to a greater extent the neurite outgrowth and neuronal differentiation toward the cholinergic phenotype as shown by expression and localization of the neuronal markers NSE and VAchT and the staining of intracellular calcium. Those results strongly suggest that SpBMP-9 plus NGF or bFGF are promising therapeutic combinations against AD that required further attention. PMID- 29341900 TI - Lamotrigine loaded poly-E-(d,l-lactide-co-caprolactone) nanoparticles as brain delivery system. AB - Management of epilepsy requires brain delivery therapy, therefore, this study was aimed to prepare lamotrigine loaded poly-E-(d,l-lactide-co-caprolactone) (PLCL) nanoparticles using spontaneous emulsification solvent diffusion method. Nanoparticles for brain delivery required to have a particle size <200 nm, polydispesity index <0.2 and a sustained drug release properties. For such aim different factors were considered in preparing the nanoparticles as PLCL monomers' ratio, type of organic solvent used to prepare the nanoparticles, amount of PLCL and Pluronic(r)F127 in the nanoparticles. Prepared nanoparticles were characterized for their shape, particle size, polydispersity index, zeta potential, encapsulation efficiency, drug loading capacity, process yield and in vitro drug release pattern. The in-vivo investigation for brain delivery of selected nanoparticles delivered by intravenous route was investigated in rats and compared to that for oral tablet. The obtained nanoparticles were spherical in shape. The amount of surfactant and PLCL affected the properties of the obtained nanoparticles. Using a mixture of organic solvent in preparing the nanoparticles improved its properties. The nanoparticles prepared using PLCL with monomers' ratio of 25:75, had particle size value of 125 nm, polydispersity index value of 0.184, zeta potential value of -39 mV and encapsulation efficiency value of 99%, was selected to study their efficacy to deliver the drug to the brain. The tested nanoparticles showed higher values of Tmax, Cmax, AUC, and MRT in homogenized rat brain, compared to oral lamotrigine tablet, while the bioavailability of the oral tablet was higher in rat plasma compared to that for the nanoparticles. This reflects that brain was the main distribution site for tested nanoparticles, and plasma was the main distribution site for oral tablets. This confirms the goal of the selected formulation as brain delivery nanoparticles. PMID- 29341902 TI - Curcumin potentiates the function of human alpha7-nicotinic acetylcholine receptors expressed in SH-EP1 cells. AB - Effects of curcumin, a biologically active ingredient of turmeric, were tested on the Ca2+ transients induced by the activation of alpha7 subunit of the human nicotinic acetylcholine (alpha7 nACh) receptor expressed in SH-EP1 cells. Curcumin caused a significant potentiation of choline (1 mM)-induced Ca2+ transients with an EC50 value of 133 nM. The potentiating effect of curcumin was not observed in Ca2+ transients induced by high K+ (60 mM) containing solutions or activation of alpha4beta2 nACh receptors and the extent of curcumin potentiation was not altered in the presence of Ca2+ channel antagonists nifedipine (1 MUM), verapamil (1 MUM), omega-conotoxin (1 MUM), and bepridil (10 MUM). Noticeably the effect of curcumin was not observed when curcumin and choline were co-applied without curcumin pre-incubation. The effect of curcumin on choline-induced Ca2+ transients was not reversed by pre-incubation with inhibitors of protein C, A, and CaM kinases. Metabolites of curcumin such as tetrahydrocurcumin, demethylcurcumin, and didemethylcurcumin also caused potentiation of choline-induced Ca2+ transients. Notably, specific binding of [125I]-bungarotoxin was not altered in the presence of curcumin. Collectively, our results indicate that curcumin allosterically potentiate the function of the alpha7-nACh receptor expressed in SH-EP1 cells. PMID- 29341903 TI - Emerging roles and mechanisms of FOXC2 in cancer. AB - Forkhead box protein C2 (FOXC2), a transcription factor of the forkhead/winged helix family, is required for embryonic and prenatal development. FOXC2 acts as a crucial modulator during both angiogenesis and lymphangiogenesis via multiple angiogenic and lymphangiogenic pathways, respectively. Although recent studies have shed light on the emerging role of FOXC2 in cancer, very little is known about the precise underlying mechanisms. The purpose of this review is to summarize the current understanding of FOXC2 and provide potential mechanistic explanations of the relationship between FOXC2 and cancer, as well as discuss the prospect for future research in the promising prognostic value of FOXC2 in cancer. PMID- 29341904 TI - A rapid and simple LC-MS/MS method for personalized busulfan dosing in pediatric patients undergoing hematopoietic stem cell transplantation (HSCT). AB - BACKGROUND: Busulfan is commonly used as a conditioning regimen before hematopoietic stem cell transplantation (HSCT). There is a big inter-individual variability in busulfan exposure and the narrow therapeutic index, especially in pediatric population. Therefore, to achieve therapeutic efficacy and safety concurrently, personalized busulfan dosing, guided by pharmacokinetic study with serial plasma samples, is needed a few hours afterwards. METHODS: A fast, sensitive, and accurate method for busulfan measurement was developed, validated, and implemented with liquid-chromatography-mass spectrometry (HPLC-MS/MS). The sample preparation procedure involves only protein precipitation and dilution, and the HPLC-MS/MS method takes 3 min/sample. The assay was linear from 10 ng/ml to 7500 ng/ml (R2 = 0.99). Recoveries were above 90%. The precision was determined at 3 levels (30, 300 and 4000 ng/ml): the intra-day variability (%CV) ranged from 1.4% to 2.5% (n = 20); the inter-day variability ranged from 2.2% to 5.5% (n = 20). The accuracy of the HPLC-MS/MS test was evaluated with an old HPLC fluorescence method (n = 84), and a Correlation Coefficient (R) of 0.99 was observed. CONCLUSIONS: The analytical performance of the assay allows for timely dose adjustment and has been implemented in clinical service for better clinical outcome. PMID- 29341906 TI - Lateralization of mother-infant interactions in wild horses. AB - The manifestation of behavioural lateralization has been shown to be modified by environmental conditions, life experiences, and selective breeding. This study tests whether the lateralization recently found in feral domestic horse (Equus caballus) is evident in undomesticated horses. Mother-offspring interactions were investigated in Przewalski's horse (E. ferus przewalskii) living in their natural habitat in Mongolia. Lateral position preferences during mare-foal spontaneous reunions were used as a behavioural marker of visual lateralization. Preferences were separately assessed for foals' approaches to their mothers and mares' approaches to their foals. Preference to keep the mother in the visual field of the left eye was found in various types of foals' behaviour. In slow travelling, Przewalski's foals showed stronger preference for the left eye use than feral horse foals. Population-level left-eye bias was also found in mothers approaching their foals. Our results indicate right-hemispheric dominance for control of mother-offspring interactions in Przewalski's horses, similar to what has been reported for other mammals including humans. Benefits conferred by the lateralized social processing of and responding to social stimuli may explain that the left-lateralized social behaviour is a robust trait of equine behaviour, not modified by domestication or specific environmental conditions of the population. PMID- 29341905 TI - Intensity difference limens in adult CBA/CaJ mice (Mus musculus). AB - Mice have emerged as important models of auditory perception and acoustic communication. To study and model complex sound perception and communication, basic hearing abilities have to be established, yet intensity difference limens have not been measured in CBA/CaJ mice. Nine mice were trained using operant conditioning procedures with positive reinforcement to discriminate sound intensity across frequencies. Intensity difference limens were measured for 12, 16, 24, and 42 kHz tones at 10 and 30 dB sensation levels. Mice are capable of discriminating intensities across frequencies and sensation levels, but have higher intensity difference limens (IDLs) thresholds than other mammals. PMID- 29341907 TI - Molecular-level elucidation of saccharin-assisted rapid dissolution and high supersaturation level of drug from Eudragit(r) E solid dispersion. AB - In this work, the effect of saccharin (SAC) addition on the dissolution and supersaturation level of phenytoin (PHT)/Eudragit(r) E (EUD-E) solid dispersion (SD) at neutral pH was examined. The PHT/EUD-E SD showed a much slower dissolution of PHT compared to the PHT/EUD-E/SAC SD. EUD-E formed a gel layer after the dispersion of the PHT/EUD-E SD into an aqueous medium, resulting in a slow dissolution of PHT. Pre-dissolving SAC in the aqueous medium significantly improved the dissolution of the PHT/EUD-E SD. Solid-state 13C NMR measurements showed an ionic interaction between the tertiary amino group of EUD-E and the amide group of SAC in the EUD-E gel layer. Consequently, the ionized EUD-E could easily dissolve from the gel layer, promoting PHT dissolution. Solution-state 1H NMR measurements revealed the presence of ionic interactions between SAC and the amino group of EUD-E in the PHT/EUD-E/SAC solution. In contrast, interactions between PHT and the hydrophobic group of EUD-E strongly inhibited the crystallization of the former from its supersaturated solution. The PHT supersaturated solution was formed from the PHT/EUD-E/SAC SD by the fast dissolution of PHT and the strong crystallization inhibition effect of EUD-E after aqueous dissolution. PMID- 29341908 TI - Induction of Au-methotrexate conjugates by sugar molecules: production, assembly mechanism, and bioassay studies. AB - Au-methotrexate (Au-MTX) conjugates induced by sugar molecules were produced by a simple, one-pot, hydrothermal growth method. Herein, the Au(III)-MTX complexes were used as the precursors to form Au-MTX conjugates. Addition of different types of sugar molecules with abundant hydroxyl groups resulted in the formation of Au-MTX conjugates featuring distinct characteristics that could be explained by the diverse capping mechanisms of sugar molecules. That is, the instant capping mechanism of glucose favored the generation of peanut-like Au-MTX conjugates with high colloidal stability while the post-capping mechanism of dextran and sucrose resulted in the production of Au-MTX conjugates featuring excellent near-infrared (NIR) optical properties with a long-wavelength plasmon resonance near 630-760 nm. Moreover, in vitro bioassays showed that cancer cell viabilities upon incubation with free MTX, Au-MTX conjugates doped with glucose, dextran and sucrose for 48 h were 74.6%, 55.0%, 62.0%, and 63.1%, respectively. Glucose-doped Au-MTX conjugates exhibited a higher anticancer activity than those doped with dextran and sucrose, therefore potentially presenting a promising treatment platform for anticancer therapy. Based on the present study, this work may provide the first example of using biocompatible sugars as regulating agents to effectively guide the shape and assembly behavior of Au-MTX conjugates. Potentially, the synergistic strategy of drug molecules and sugar molecules may offer the possibility to create more gold-based nanocarriers with new shapes and beneficial features for advanced anticancer therapy. PMID- 29341909 TI - Nanogel-DFO conjugates as a model to investigate pharmacokinetics, biodistribution, and iron chelation in vivo. AB - Deferoxamine (DFO) to treat iron overload (IO) has been limited by toxicity issues and short circulation times and it would be desirable to prolong circulation to improve non-transferrin bound iron (NTBI) chelation. In addition, DFO is currently unable to efficiently target the large pool of iron in the liver and spleen. Nanogel-Deferoxamine conjugates (NG-DFO) can prove useful as a model to investigate the pharmacokinetic (PK) properties and biodistribution (BD) behavior of iron-chelating macromolecules and their overall effect on serum ferritin levels. NG-DFO reduced the cytotoxicity of DFO and significantly reduced cellular ferritin levels in IO macrophages in vitro. PK/BD studies in normal rats revealed that NG-DFO displayed prolonged circulation and preferential accumulation into the liver and spleen. IO mice treated with NG1-DFO presented significantly lower levels of serum ferritin compared to DFO. Total renal and fecal elimination data point to the need to balance prolonged circulation with controlled degradation to accelerate clearance of iron-chelating macromolecules. PMID- 29341910 TI - Isomalt and its diastereomer mixtures as stabilizing excipients with freeze-dried lactate dehydrogenase. AB - The purpose of this research was to study isomalt as a protein-stabilizing excipient with lactate dehydrogenase (LDH) during freeze-drying and subsequent storage and compare it to sucrose, a standard freeze-drying excipient. Four different diastereomer mixtures of isomalt were studied. The stability of the protein was studied with a spectrophotometric enzyme activity test and circular dichroism after freeze-drying and after 21 days of storage at 16% RH. Physical stability was analyzed with differential scanning calorimetry and Karl Fischer titration. Statistical analysis was utilized in result analysis. LDH activity was almost completely retained after freeze-drying with sucrose; whereas samples stabilized with isomalt diastereomer mixtures had a considerably lower protein activity. During storage the sucrose-containing samples lost most of their enzymatic activity, while the isomalt mixtures retained the protein activity better. In all cases changes to protein secondary structure were observed. Isomalt diastereomer mixtures have some potential as protein-stabilizing excipients during freeze-drying and subsequent storage. Isomalt stabilized LDH moderately during freeze-drying; however it performed better during storage. Future studies with other proteins are required to evaluate more generally whether isomalt would be a suitable excipient for pharmaceutical freeze-dried protein formulations. PMID- 29341911 TI - An efficient PEGylated gene delivery system with improved targeting: Synergism between octaarginine and a fusogenic peptide. AB - Because of their ability to translocate different cargos into cells, arginine rich cell penetrating peptides (CPPs) are promising vehicles for drug and gene delivery. The use of CPP-based carriers, however, is hampered by the lack of specificity and by interactions with negative serum components. Polyethylene glycol (PEG) is used to decrease such non-specific interactions, albeit its use is associated with reduced transfection efficiency. In this study, we describe the development of PEGylated CPP-based gene carrier with an improved targeting and a high transfection activity. The system was prepared by condensing DNA with a polycation followed by coating with a lipid envelope containing the octaarginine (R8) peptide as a model CPP. R8-modified nanoparticles produced high transfection activities, but the efficiency was reduced by PEG shielding. The reduced activity could be fully restored by the addition of a targeting ligand and a pH-sensitive fusogenic peptide. The efficiency of the proposed system is quite high, even in the presence of serum, and shows improved targeting and selectivity. Surprisingly, the effect of the fusogenic peptide was dramatically reduced in the absence of R8. Although shielded, R8 augmented the activity of the fusogenic peptide, suggesting a synergistic effect between the two peptides at the intracellular level. PMID- 29341912 TI - Quantitative estimation of phenytoin sodium disproportionation in the formulations using vibration spectroscopies and multivariate methodologies. AB - Phenytoin sodium (PS) has a tendency to convert to its base form; phenytoin base (PHT) during manufacturing, packaging, shelf life and in-use conditions that can influence its clinical performance. The objective of the present work was to develop a non-destructive, quick and easy analytical method for quantification of PHT in the drug product. A formulation was prepared to contain the excipients of commercial capsule formulation of PS. The formulation containing either 100% PHT or PS was prepared and these formulations were mixed in different proportion to achieve 0-100% PHT matrices. FTIR, NIR and Raman spectra of samples were collected. Data were truncated and mathematically pretreated before development of partial least squares (PLS) and principal component analysis (PCA) regressions model. The models were assessed by slope, intercept, R, R2, root mean square error (RMSE) and standard error (SEP). The models exhibited good linearity over the selected range of PHT in the formulations with low error as indicated by slope that was close to one and small values of intercept, RMSE and SE. The models of NIR based data were more accurate and precise than Raman data based models as indicated by the low values of RMSE and SE. Prediction accuracy of independent samples containing 25% PHT using NIR models were similar to Raman models. On the other hand, the prediction was more precise for the independent sample containing 5% PHT using NIR data based models compared to Raman data based models as indicated by standard deviation. In conclusion, chemometric models based on NIR and Raman spectroscopies provides a fast and easy way to monitor the disproportionation of PS in the drug products. PMID- 29341913 TI - Characterisation of pore structures of pharmaceutical tablets: A review. AB - Traditionally, the development of a new solid dosage form is formulation-driven and less focus is put on the design of a specific microstructure for the drug delivery system. However, the compaction process particularly impacts the microstructure, or more precisely, the pore architecture in a pharmaceutical tablet. Besides the formulation, the pore structure is a major contributor to the overall performance of oral solid dosage forms as it directly affects the liquid uptake rate, which is the very first step of the dissolution process. In future, additive manufacturing is a potential game changer to design the inner structures and realise a tailor-made pore structure. In pharmaceutical development the pore structure is most commonly only described by the total porosity of the tablet matrix. Yet it is of great importance to consider other parameters to fully resolve the interplay between microstructure and dosage form performance. Specifically, tortuosity, connectivity, as well as pore shape, size and orientation all impact the flow paths and play an important role in describing the fluid flow in a pharmaceutical tablet. This review presents the key properties of the pore structures in solid dosage forms and it discusses how to measure these properties. In particular, the principles, advantages and limitations of helium pycnometry, mercury porosimetry, terahertz time-domain spectroscopy, nuclear magnetic resonance and X-ray computed microtomography are discussed. PMID- 29341914 TI - Is there a correlation between the glass forming ability of a drug and its supersaturation propensity? AB - The use of an enabling formulation technique, such as amorphization of a poorly water-soluble crystalline drug, can result in supersaturation with respect to the crystalline form of the drug and thus potentially in a higher degree of absorption after oral administration. The ease with which such drugs can be amorphized is known as their glass forming ability (GFA). In this study, a potential correlation between GFA and supersaturation propensity is investigated. The GFA of 23 different drugs was determined by melt quenching or milling the crystalline drugs to obtain their respective amorphous forms. The inherent propensity of the drug to supersaturate, i.e. the maximal apparent degree of supersaturation (aDS), and the time until precipitation at a given aDS were determined. Supersaturation was induced via a solvent shift method where the drug was initially dissolved in dimethyl sulfoxide and then added to a biorelevant medium (fasted state simulated intestinal fluid).The study showed that drugs which are good glass formers also have the potential to supersaturate to a high degree (high maximal aDS) whereas drugs that are modest glass formers supersaturate only to a low degree. This correlation was confirmed by principal component analysis, which also indicated that melt enthalpy inversely correlated with both GFA and maximal aDS. However, no correlation between GFA of a drug and the time until precipitation at a given aDS was found. PMID- 29341915 TI - Influence of ligands property and particle size of gold nanoparticles on the protein adsorption and corresponding targeting ability. AB - Nanoparticulated vesicles were widely used for carriers of drugs and imaging probes. To improve the targeting delivery efficiency of these vesicles, ligands were often functionalized onto their surfaces. However, the interaction between vesicles and plasma proteins may cover the ligands and hinder the targeting delivery. It is important to address the potential influence of ligands modification on plasma protein adsorption and the following targeting delivery. In this study, two common used ligands were chosen as the model: transferrin and RGD peptide. Gold nanoparticles were utilized as model particles. Sodium dodecyl sulfate polyacrylamide gel electrophoresis data demonstrated that higher PEG modification and smaller particle size could reduce the plasma protein adsorption, while ligand modification could increase. The cellular uptake results showed that the targeting ability of smaller ligand RGD peptide would be more easily influenced by the proteins corona. PMID- 29341916 TI - Effects of surfactant-based permeation enhancers on mannitol permeability, histology, and electrogenic ion transport responses in excised rat colonic mucosae. AB - Surfactant-based intestinal permeation enhancers (PEs) are constituents of several oral macromolecule formulations in clinical trials. This study examined the interaction of a test panel of surfactant-based PEs with isolated rat colonic mucosae mounted in Ussing chambers in an attempt to determine if increases in transepithelial permeability can be separated from induction of mucosal perturbation. The aim was to assess the effects of PEs on (i) apparent permeability coefficient (Papp) of [14C]-mannitol (ii) histology score and (iii) short-circuit current (DeltaIsc) responses to a cholinomimetic (carbachol, CCh). Enhancement ratio increases for Papp values followed the order: C10 > C9 = C11:1 > a bile salt blend > sodium choleate > sucrose laurate > Labrasol(r) >C12E8 > C12 > Cremophor(r) A25 > C7 > sucrose stearate > Kolliphor(r) HS15 > Kolliphor(r) TPGS. Exposures that increased the Papp by >=2-fold over 120 min were accompanied by histological damage in 94% of tissues, and by a decreased DeltaIsc response to CCh in 83%. A degree of separation between the increased Papp of [14C]-mannitol and histological damage and diminution of the DeltaIsc response to CCh was observed at selected concentrations of Labrasol(r). Overall, this surfactant based PE selection caused transcellular perturbation at similar concentrations to those that enhanced permeability. PMID- 29341917 TI - A novel method for the production of core-shell microparticles by inverse gelation optimized with artificial intelligent tools. AB - Numerous studies have been focused on hydrophobic compounds encapsulation as oils. In fact, oils can provide numerous health benefits as synergic ingredient combined with other hydrophobic active ingredients. However, stable microparticles for pharmaceutical purposes are difficult to achieve when commonly techniques are used. In this work, sunflower oil was encapsulated in calcium alginate capsules by prilling technique in co-axial configuration. Core-shell beads were produced by inverse gelation directly at the nozzle using a w/o emulsion containing aqueous calcium chloride solution in sunflower oil pumped through the inner nozzle while an aqueous alginate solution, coming out from the annular nozzle, produced the beads shell. To optimize process parameters artificial intelligence tools were proposed to optimize the numerous prilling process variables. Homogeneous and spherical microcapsules with narrow size distribution and a thin alginate shell were obtained when the parameters as w/o constituents, polymer concentrations, flow rates and frequency of vibration were optimized by two commercial software, FormRules(r) and INForm(r), which implement neurofuzzy logic and Artificial Neural Networks together with genetic algorithms, respectively. This technique constitutes an innovative approach for hydrophobic compounds microencapsulation. PMID- 29341918 TI - Asymmetric flow field flow fractionation for the characterization of globule size distribution in complex formulations: A cyclosporine ophthalmic emulsion case. AB - Commonly used characterization techniques such as cryogenic-transmission electron microscopy (cryo-TEM) and batch-mode dynamic light scattering (DLS) are either time consuming or unable to offer high resolution to discern the poly-dispersity of complex drug products like cyclosporine ophthalmic emulsions. Here, a size based separation and characterization method for globule size distribution using an asymmetric flow field flow fractionation (AF4) is reported for comparative assessment of cyclosporine ophthalmic emulsion drug products (model formulation) with a wide size span and poly-dispersity. Cyclosporine emulsion formulations that are qualitatively (Q1) and quantitatively (Q2) the same as Restasis(r) were prepared in house with varying manufacturing processes and analyzed using the optimized AF4 method. Based on our results, the commercially available cyclosporine ophthalmic emulsion has a globule size span from 30 nm to a few hundred nanometers with majority smaller than 100 nm. The results with in-house formulations demonstrated the sensitivity of AF4 in determining the differences in the globule size distribution caused by the changes to the manufacturing process. It is concluded that the optimized AF4 is a potential analytical technique for comprehensive understanding of the microstructure and assessment of complex emulsion drug products with high poly-dispersity. PMID- 29341919 TI - Performance of an acoustically mixed pharmaceutical dry powder delivered from a novel inhaler. PMID- 29341920 TI - Effect of structural factors on release profiles of camptothecin from block copolymer conjugates with high load of drug. AB - The aim of the present work was the synthesis and study the kinetics and profiles of camptothecin (CPT) release form block co- and ter-polymer conjugates comprising polylactide (PLA) segments and CPT moieties, structurally diverse by degrees of branching, content of d-PLA units and poly(ethylene glycol) methyl ether methacrylate (PEGMA). Six PLA, non-toxic macroinitiators (MIs), terminated with alpha-bromoester were synthesized. MIs were subjected to polymerization of CPT methacrylic derivative (CPTMA) with PEGMA at various ratios. The average contents of CPT from elemental analysis, NMR and UV-GPC were approximate to each other. The number of CPT molecules and PEGMA units was in the range of 9-195 and 0-280 per conjugate, respectively. PEGMA units plasticized PLA causing increase of its crystallinity, whereas 7% and more of d-PLA caused material amorphous. PEGMA units decreased thermal stability of conjugates, however it compatibillized the separated phases of PLA and PCPTMA, based on AFM. In vitro release rate of CPT from linear PLA conjugates deposited on injection-molded PLA bars increased by introduction of PEGMA units with zero-order kinetics and Korsmeyer-Peppas model indicating the super case II transport. Branched conjugates revealed some burst release and then the release was rather of first-order-kinetics with respect to CPT with non-Fickian transport. PMID- 29341921 TI - Computational hydrodynamic comparison of a mini vessel and a USP 2 dissolution testing system to predict the dynamic operating conditions for similarity of dissolution performance. AB - The hydrodynamic characteristics of a mini vessel and a USP 2 dissolution testing system were obtained and compared to predict the tablet-liquid mass transfer coefficient from velocity distributions near the tablet and establish the dynamic operating conditions under which dissolution in mini vessels could be conducted to generate concentration profiles similar to those in the USP 2. Velocity profiles were obtained experimentally using Particle Image Velocimetry (PIV). Computational Fluid Dynamics (CFD) was used to predict the velocity distribution and strain rate around a model tablet. A CFD-based mass transfer model was also developed. When plotted against strain rate, the predicted tablet-liquid mass transfer coefficient was found to be independent of the system where it was obtained, implying that a tablet would dissolve at the same rate in both systems provided that the concentration gradient between the tablet surface and the bulk is the same, the tablet surface area per unit liquid volume is identical, and the two systems are operated at the appropriate agitation speeds specified in this work. The results of this work will help dissolution scientists operate mini vessels so as to predict the dissolution profiles in the USP 2, especially during the early stages of drug development. PMID- 29341922 TI - Sustained release timolol maleate loaded ocusert based on biopolymer composite. AB - In the present investigation, the effect of timolol maleate loaded ocuserts was studied as an alternative for conventional anti-glaucoma formulation. Ocuserts were prepared using natural polymer sodium alginate and ethyl cellulose. Physico chemical properties along with drug entrapment efficiency (94-98%), content uniformity (93.1% +/- 0.264-98.00% +/- 0.321), in vitro drug release (83.42% +/- 0.35 at end of 12 h), ex vivo permeation all showed satisfactory results, which was found to follow zero order kinetics. Ex vivo permeation studies showed better results, revealed that the permeability coefficient was dependent on polymer type. The sterility test accelerated stability studies and in vivo studies such as eye irritancy test, in vivo drug release of the optimized ocusert was determined. The anti-glaucoma activity was measured using Schiotz tonometer at different time interval. Significant reduction in Intra ocular pressure (IOP) within 3 days was observed in case of rabbits treated with ocusert in comparison to the rabbit treated with marketed eye drop formulation. Hence timolol maleate loaded ocuserts proved to be a promising and viable alternative over conventional eye formulation for the sustained and controlled ophthalmic drug delivery, targeting the drug within the ocular globe thus improving patient compliance for the treatment of glaucoma. PMID- 29341923 TI - Purification, chitooligosaccharide binding properties and thermal stability of CIA24, a new PP2-like phloem exudate lectin from ivy gourd (Coccinia indica). AB - PP2-like chitin binding phloem exudate lectins, abundant in the sieve tube of cucurbits, have been implicated to play key roles in wound sealing and antipathogenic responses of the plant. Here we report the affinity purification, macromolecular characterization and carbohydrate binding properties of a new chitooligosaccharide-specific lectin from the phloem exudate of ivy gourds (Coccinia indica). The protein, CIA24, has a subunit mass of 24 kDa. Partial sequence analysis indicated that CIA24 exhibits high homology with CIA17 and other Cucurbitaceae PP2 proteins whereas CD spectroscopic studies suggested that beta-sheets constitute the predominant secondary structure. Temperature dependent CD spectroscopic and differential scanning calorimetric studies revealed that CIA24 is a highly thermostable protein, which undergoes complete unfolding at ~105 degrees C. Isothermal titration calorimetric studies suggested that binding of chitooligosaccharides to CIA24 is a highly exothermic process. The lectin combining site can accommodate upto a tetrasaccharide with the binding stoichiometry (n) close to unity with respect to each protein subunit, whereas for chitohexaose a sharp decrease in the binding stoichiometry (n) to ~1:0.5 was observed. This suggests that the protein probably undergoes dimerisation in presence of chitohexaose, wherein two protein molecules bind to the oligosaccharides from the reducing and non-reducing end, respectively. PMID- 29341924 TI - Maca polysaccharides: A review of compositions, isolation, therapeutics and prospects. AB - Maca polysaccharides, some of the major bioactive substances in Lepidium meyenii (Walp.) (Maca), have various biological properties, including anti-oxidant, anti fatigue, anti-tumor, and immunomodulatory effects, as well as hepatoprotective activity and regulation function. Although many therapeutics depend on multiple structures of maca polysaccharides in addition to providing sufficient foundations for maca polysaccharide products in industrial applications, the relationships between the pharmacological effects and structures have not been established. Therefore, this article summarizes the extraction and purification methods, compositions, pharmacological effects, prospects and industrial applications of maca polysaccharides. PMID- 29341925 TI - Phase contrast tomography at lab on chip scale by digital holography. AB - High-throughput single-cell analysis is a challenging target for implementing advanced biomedical applications. An excellent candidate for this aim is label free tomographic phase microscopy (TPM). In this paper, some of the methods used to obtain TPM are reviewed, analyzing advantages and disadvantages of each of them. Moreover, an alternative tomographic technique is described for live cells analysis, and future trends of the method are foreseen. In particular, by exploiting random rolling of cells while they are flowing along a microfluidic channel, it is possible to obtain phase-contrast tomography thus obtaining complete retrieval of both 3D-position and orientation of rotating cells. Thus, a priori knowledge of such information is no longer needed. This approach extremely simplifies the optical system avoiding any mechanical/optical scanning of light source. The proof is given for different classes of biosamples, red-blood-cells (RBCs) and diatom algae. Accurate characterization of each type of cells is reported and compared to that obtained by other tomographic techniques. PMID- 29341926 TI - Direct detection of carbon and nitrogen nuclei for high-resolution analysis of intrinsically disordered proteins using NMR spectroscopy. AB - Nuclear magnetic resonance spectroscopy (NMR) is a powerful technique for characterizing the structural and dynamic properties of intrinsically disordered proteins and protein regions (IDPs & IDRs). However, the application of NMR to IDPs has been limited by poor chemical shift dispersion in two-dimensional (2D) 1H-15N heteronuclear correlation spectra. Among the various detection schemes available for heteronuclear correlation spectroscopy, 13C direct-detection has become a mainstay for investigations of IDPs owing to the favorable chemical shift dispersion in 2D 13C'-15N correlation spectra. Recent advances in cryoprobe technology have enhanced the sensitivity for direct detection of both 13C and 15N resonances at high magnetic field strengths, thus prompting the development of 15N direct-detect experiments to complement established 13C-detection experiments. However, the application of 15N-detection has not been widely explored for IDPs. Here we compare 1H, 13C, and 15N detection schemes for a variety of 2D heteronuclear correlation spectra and evaluate their performance on the basis of resolution, chemical shift dispersion, and sensitivity. We performed experiments with a variety of disordered systems ranging in size and complexity; from a small IDR (99 amino acids), to a large low complexity IDR (185 amino acids), and finally a ~73 kDa folded homopentameric protein that also contains disordered regions (133 amino acids/monomer). We conclude that, while requiring high sample concentration and long acquisition times, 15N-detection often offers enhanced resolution over other detection schemes in studies of disordered protein regions with low complexity sequences. PMID- 29341927 TI - Book lung development in juveniles and adults of the cobweb spider, Parasteatoda tepidariorum C. L. Koch, 1841 (Araneomorphae, Theridiidae). AB - Light and transmission electron microscopy were used to study the development of new book lung lamellae in juvenile and adult spiders (Parasteatoda tepidariorum). As hypothesized earlier in a study of embryos, mesenchyme cells dispersed throughout the opisthosoma (EMT) are a likely source of precursor epithelial cells (MET) for the new lamellae. The precursor cells in juveniles and adults continue many of the complex activities observed in embryos, e.g., migration, alignment, lumen formation, thinning, elongation, and secretion of the cuticle of air channel walls and trabeculae. The apicobasal polarity of precursor cells for new channels is apparently induced by the polarity pattern of precursor cells of channels produced earlier. Thus, new air and hemolymph channels extend and continue the alternating pattern of older channels. At sites more distant from the spiracle and atrium, new channels are usually produced by the mode II process (intracellular alignment and merging of vesicles). These air channels have bridging trabeculae and are quite stable in size throughout their length. At sites closer to the spiracle and atrium, new channels may be produced by mode I (coalescence of merocrine vesicle secretion). This raises the hypothesis that structural and functional differences in mode I and II channels and differing oxygen and fluid conditions with distance from the spiracle and atrium determine the mode of formation of new channels. Observations herein support an earlier hypothesis that there is some intercellular apical/apical and basal/basal affinity among the opposed surfaces of aligned precursor cells. This results in the alternating pattern of air channels at the apical and hemolymph channels at the basal cell surfaces. PMID- 29341929 TI - The infection of red seabream iridovirus in mandarin fish (Siniperca chuatsi) and the host immune related gene expression profiles. AB - Red Sea bream iridovirus (RSIV) was initially isolated from marine fish, which belongs to Megalocytivirus, Iridoviridae. It can cause great economic losses in fish culture with high morbidity and mortality. In the present study, the pathogenicity and immune response associated with a RSIV genotype megalocytivirus infection were determined in mandarin fish (Siniperca chuatsi). Fish challenged showed typical clinical signs of iridovirus infection, including acute haemorrhages and enlarged visceral organs. Histopathological analysis revealed that extensive necrosis, vacuolization and inflammation were presented in the stomach, spleen, kidney and liver of the diseased fish. Blood cells counting and phagocytic assay indicated that the numbers of the red and white blood cells in the peripheral blood of infected fish increased significantly compared to the control group and the phagocytic percentage of leukocytes peaked at day 6 post infection. Quantitive real-time PCR (qRT-PCR) was also undertaken to analyse the host defensive response in mandarin fish challenged with RSIV. The expression level of ten genes including interferon-related factors (IRFs) IRF1 and IRF7, Mx, Viperin, JAK1, STAT1, TCRalpha, TNFalpha, IL-1beta and IL-8 during experimental infection were monitored at different point of time in liver, spleen and head kidney. Results revealed varying expression profiles and clear transcriptional activation of these immune related genes in different tissues, which will contribute to better understand the pathogenesis and host defensive system in iridovirus invasion. PMID- 29341930 TI - Activation of estrogen receptor beta (ERbeta) regulates the expression of N cadherin, E-cadherin and beta-catenin in androgen-independent prostate cancer cells. AB - The aim of the present study was to investigate the impact of the activation of estrogen receptors on expression and localization of N-cadherin, E-cadherin and non-phosphorylated beta-catenin in androgen-independent prostate cancer cells (PC 3 and DU-145) and in human post pubertal prostate epithelial cells (PNT1A). Expression of N-cadherin was detected in PNT1A and PC-3 cells, but not in DU-145 cells. E-cadherin was detected only in DU-145 cells and beta-catenin was detected in all cells studied. N-cadherin and beta-catenin were located preferentially in the cellular membrane of PNT1A cells and in the cytoplasm of PC-3 cells. E cadherin and beta-catenin were located preferentially in the cellular membrane of DU-145 cells. 17beta-estradiol (E2) or the ERalpha-selective agonist PPT did not affect the content and localization of N-cadherin in PC-3 and PNT1A cells or E cadherin in DU-145 cells. In PC-3 cells, ERbeta-selective agonist DPN decreased the expression of N-cadherin. DPN-induced downregulation of N-cadherin was blocked by pretreatment with the ERbeta-selective antagonist (PHTPP), indicating that ERbeta1 is the upstream receptor regulating the expression of N-cadherin. In DU-145 cells, the activation of ERbeta1 by DPN increased the expression of E cadherin. Taken together, these results suggest that activation of ERbeta1 is required to maintain an epithelial phenotype in PC-3 and DU-145 cells. The activation of ERbeta1 also increased the expression of beta-catenin in cytoplasm of PC-3 and in the cellular membrane of DU-145 cells. In conclusion, our results indicate differential expression and localization of N-cadherin, E-cadherin and beta-catenin in androgen-independent prostate cancer cells. The reduction of N cadherin content by activation of ERbeta, exclusively observed in androgen independent prostate cancer cells (PC-3), may be related to the activation of signaling pathways, such as the release of beta-catenin into the cytoplasm, translocation of beta-catenin to the nucleus and activation of gene transcription. PMID- 29341928 TI - A novel brown adipocyte-enriched long non-coding RNA that is required for brown adipocyte differentiation and sufficient to drive thermogenic gene program in white adipocytes. AB - The thermogenic activities of brown and beige adipocytes can be exploited to reduce energy surplus and counteract obesity. Recent RNA sequencing studies have uncovered a number of long noncoding RNAs (lncRNAs) uniquely expressed in white and brown adipose tissues (WAT and BAT), but whether and how these lncRNAs function in adipogenesis remain largely unknown. Here, we report the identification of a novel brown adipocyte-enriched LncRNA (AK079912), and its nuclear localization, function and regulation. The expression of AK079912 increases during brown preadipocyte differentiation and in response to cold stimulated browning of white adipocytes. Knockdown of AK079912 inhibits brown preadipocyte differentiation, manifested by reductions in lipid accumulation and down-regulation of adipogenic and BAT-specific genes. Conversely, ectopic expression of AK079912 in white preadipocytes up-regulates the expression of genes involved in thermogenesis. Mechanistically, inhibition of AK079912 reduces mitochondrial copy number and protein levels of mitochondria electron transport chain (ETC) complexes, whereas AK079912 overexpression increases the levels of ETC proteins. Lastly, reporter and pharmacological assays identify Ppargamma as an upstream regulator of AK079912. These results provide new insights into the function of non-coding RNAs in brown adipogenesis and regulating browning of white adipocytes. PMID- 29341931 TI - Bioinspired capsules based on nanocellulose, xyloglucan and pectin - The influence of capsule wall composition on permeability properties. AB - : Materials based on renewable biopolymers, selective permeability and stimuli responsive release/loading properties play an important role in biomedical applications. Here, in order to mimic the plant primary cell-wall, microcapsules have been fabricated using cell wall polysaccharides, namely pectin, xyloglucan and cellulose nanofibers. For the first time, a large amount of xyloglucan was successfully included in such capsules. These capsules demonstrated stimuli responsive (ON/OFF) permeability and biocompatibility. The live cell staining revealed that the microcapsules' surface enhanced cell growth and also the non toxic nature of the microcapsules. In water, the microcapsules were completely and partially permeable to fluorescent dextrans with an average molecular weight of 70 kDa (hydrodynamic diameter of ca. 12 nm) and 2000 kDa (ca. 54 nm), respectively. On the other hand, the permeability dropped quickly when the capsules were exposed to 250 mM NaCl solution, trapping a fraction of the 70 kDa dextrans in the capsule interior. The decrease in permeability was a direct consequence of the capsule-wall composition, i.e. the presence of xyloglucan and a low amount of charged molecules such as pectin. The low permeability of capsules in saline conditions (and in a model biological medium), combined with a capsule wall that is made from dietary fibers only, potentially enables their use in biological applications, such as colon targeted delivery in the gastro intestinal tract. STATEMENT OF SIGNIFICANCE: For the first time, microcapsules have been prepared that possess capsule walls that mimic the primary cell wall found in natural plant cells. The capsules were assembled using pectin, xyloglucan and cellulose in the form of cellulose nanofibers. The capsules demonstrated stimuli-responsive (ON/OFF) permeability and biocompatibility. The low permeability of capsules in saline conditions (and in a model biological medium), combined with a capsule wall that is made from dietary fibers only, potentially enables their use in biological applications, such as colon targeted delivery in the gastro-intestinal tract. Such model plant cell capsules might also further improve the understanding for the digestion and release of nutrients from natural plant cells found in vegetables and fruits. PMID- 29341932 TI - Synthetic extracellular matrix mimic hydrogel improves efficacy of mesenchymal stromal cell therapy for ischemic cardiomyopathy. AB - BACKGROUND: Mesenchymal stromal cells (MSC) repair infarcted hearts mainly through paracrine mechanisms. Low cell engraftment limits the release of soluble paracrine factors (SF) over time and, consequently, MSC efficacy. We tested whether a synthetic extracellular matrix mimic, a hydrogel containing heparin (H HG), could ameliorate MSC engraftment and binding/release of SF, thus improving MSC therapy efficacy. METHODS AND RESULTS: In vitro, rat bone-marrow MSC (rBM MSC) were seeded and grown into H-HG. Under normoxia, the hydrogel did not affect cell survival (rBM-MSC survival >90% at each time point tested); vice versa, under hypoxia the biomaterial resulted to be protective for the cells (p < .001 vs rBM-MSC alone). H-HG or control PEG hydrogels (HG) were incubated with VEGF or bFGF for binding/release quantification. Data showed significantly higher amount of VEGF and bFGF bound by H-HG compared with HG (p < .05) and a constant release over time. In vivo, myocardial infarction (MI) was induced in female Sprague Dawley rats by permanent coronary ligation. One week later, saline, rBM-MSC, H-HG or rBM-MSC/H-HG were injected in the infarct zone. The co-injection of rBM-MSC/H HG into infarcted hearts significantly increased cardiac function. Importantly, we observed a significant gain in MSC engraftment, reduction of ventricular remodeling and stimulation of neo-vasculogenesis. We also documented higher amounts of several pro-angiogenic factors in hearts treated with rBM-MSC/H-HG. CONCLUSIONS: Our data show that H-HG increases MSC engraftment, efficiently fine tunes the paracrine MSC actions and improves cardiac function in infarcted rat hearts. STATEMENT OF SIGNIFICANCE: Transplantation of MSC is a promising treatment for ischemic heart disease, but low cell engraftment has so far limited its efficacy. The enzymatically degradable H-HG that we developed is able to increase MSC retention/engraftment and, at the same time, to fine-tune the paracrine effects mediated by the cells. Most importantly, the co-transplantation of MSC and H-HG in a rat model of ischemic cardiomyopathy improved heart function through a significant reduction in ventricular remodeling/scarring and amelioration in neo-vasculogenesis/endogenous cardiac regeneration. These beneficial effects are comparable to those obtained by others using a much greater number of cells, strengthening the efficacy of the biomaterial used in increasing the therapeutic effects of MSC. Given its efficacy and safety, documented by the absence of immunoreaction, our strategy appears readily translatable to clinical scenarios. PMID- 29341933 TI - The effects of platelet lysate patches on the activity of tendon-derived cells. AB - : Platelet-derived biomaterials are widely explored as cost-effective sources of therapeutic factors, holding a strong potential for endogenous regenerative medicine. Particularly for tendon repair, treatment approaches that shift the injury environment are explored to accelerate tendon regeneration. Herein, genipin-crosslinked platelet lysate (PL) patches are proposed for the delivery of human-derived therapeutic factors in patch augmentation strategies aiming at tendon repair. Developed PL patches exhibited a controlled release profile of PL proteins, including bFGF and PDGF-BB. Additionally, PL patches exhibited an antibacterial effect by preventing the adhesion, proliferation and biofilm formation by S. aureus, a common pathogen in orthopaedic surgical site infections. Furthermore, these patches supported the activity of human tendon derived cells (hTDCs). Cells were able to proliferate over time and an up regulation of tenogenic genes (SCX, COL1A1 and TNC) was observed, suggesting that PL patches may modify the behavior of hTDCs. Accordingly, hTDCs deposited tendon related extracellular matrix proteins, namely collagen type I and tenascin C. In summary, PL patches can act as a reservoir of biomolecules derived from PL and support the activity of native tendon cells, being proposed as bioinstructive patches for tendon regeneration. STATEMENT OF SIGNIFICANCE: Platelet-derived biomaterials hold great interest for the delivery of therapeutic factors for applications in endogenous regenerative medicine. In the particular case of tendon repair, patch augmentation strategies aiming at shifting the injury environment are explored to improve tendon regeneration. In this study, PL patches were developed with remarkable features, including the controlled release of growth factors and antibacterial efficacy. Remarkably, PL patches supported the activity of native tendon cells by up-regulating tenogenic genes and enabling the deposition of ECM proteins. This patch holds great potential towards simultaneously reducing post-implantation surgical site infections and promoting tendon regeneration for prospective in vivo applications. PMID- 29341934 TI - Advances in the delivery of antisense oligonucleotides for combating bacterial infectious diseases. AB - Discovery and development of new antibacterial drugs against multidrug resistant bacterial strains have become more and more urgent. Antisense oligonucleotides (ASOs) show immense potential to control the spread of resistant microbes due to its high specificity of action, little risk to human gene expression, and easy design and synthesis to target any possible gene. However, efficient delivery of ASOs to their action sites with enough concentration remains a major obstacle, which greatly hampers their clinical application. In this study, we reviewed current progress on delivery strategies of ASOs into bacteria, focused on various non-virus gene vectors, including cell penetrating peptides, lipid nanoparticles, bolaamphiphile-based nanoparticles, DNA nanostructures and Vitamin B12. The current review provided comprehensive understanding and novel perspective for the future application of ASOs in combating bacterial infections. PMID- 29341935 TI - Systemic Sclerosis: Small mouth, big burden? PMID- 29341936 TI - Rheumatic manifestations among cancer patients treated with immune checkpoint inhibitors. AB - BACKGROUND: The use of immune checkpoint inhibitors (ICI) has grown incessantly since they were first approved in 2014. These monoclonal antibodies inhibit T cell activation, yielding a dramatic tumor response with improved survival. However, immunotherapy is frequently hampered by immune adverse events (iAE) such as hypophysitis, colitis, hepatitis, pneumonitis and rash. Until recently, rheumatic side effects were only infrequently reported. AIM: To describe the rheumatic manifestations encountered among patients treated with ICIs in a large tertiary cancer center in Israel METHODS: The cancer center's patient registry was screened for patients who had ever been treated with ipilimumab, pembrolizumab and/or nivolumab with relevant data gathered from clinical charts. RESULTS: Rheumatic manifestations were encountered in 14 of 400 patients (3.5%) who had received immunotherapy between January 1st 2013 and April 30th, 2017. The most common rheumatic manifestation was inflammatory arthritis (85%) for which a third (4/11) had a clear cut predisposing factor such as a personal or family history of psoriasis, a prior episode of uveitis or ACPA positivity. Pulmonary sarcoidosis and biopsy-proven eosinophilic fasciitis were diagnosed in two additional patients. Treatment with NSAIDS was mostly unsuccessful while steroid therapy was beneficial in doses >=20 mg/d. Methotrexate enabled steroid tapering without an excess of side effects or tumor progression in the short follow-up available. Overall, rheumatic manifestations tended to occur later in the course of immunotherapy as compared to other iAE. CONCLUSIONS: Our findings underscore that rheumatic iAE are part of the side effect profile of ICIs and require heightened awareness as these therapies are becoming the standard of care for various malignancies. We show that these appear later in the course of iAEs and respond preferentially to high dose steroids. MTX appears effective as a steroid sparing agent. PMID- 29341937 TI - Correction for: Opening the Black Box of Electronic Health: Collecting, Analyzing, and Interpreting Log Data. AB - [This corrects the article DOI: .]. PMID- 29341938 TI - Increased serum concentrations of soluble ST2 are associated with pulmonary complications and mortality in polytraumatized patients. AB - BACKGROUND: We sought to evaluate the role of soluble ST2 (suppression of tumorigenicity) serum concentrations in polytraumatized patients and its potential role as biomarker for pulmonary complications. METHODS: We included severely injured patients (injury severity score>=16) admitted to our level I trauma center and analyzed serum samples obtained on the day of admission and on day 2. Furthermore, patients with isolated thoracic injury and healthy probands were included and served as control groups. Serum samples were analyzed for soluble ST2 concentrations with a commercially available ELISA kit. RESULTS: A total of 130 patients were included in the present study. Five patients with isolated thoracic injury and eight healthy probands were further included. Serum analyses revealed significantly elevated concentrations of soluble ST2 in polytraumatized patients compared to patients suffering from isolated thoracic trauma and healthy probands. In polytraumatized patients who developed pulmonary complications (acute respiratory distress syndrome and pneumonia) and in patients who died, significantly higher serum concentrations of soluble ST2 were found on day 2 (p<0.001). Serum concentrations of soluble ST2 on day 2 were of prognostic value to predict pulmonary complications in polytraumatized patients (area under the curve=0.720, 95% confidence interval=0.623-0.816). Concomitant thoracic trauma had no further impact on serum concentrations of soluble ST2. CONCLUSIONS: Serum concentrations of soluble ST2 are upregulated following polytrauma. Increased concentrations were associated with worse outcome. PMID- 29341939 TI - The quest for equivalence of test results: the pilgrimage of the Dutch Calibration 2.000 program for metrological traceability. PMID- 29341940 TI - Mucocele of the Sphenoid Sinus. AB - Mucocele of the paranasal sinuses is a rare disease with slow evolution. It is a benign, encapsulated and destructive formation filled with mucous fluid and tapistrated with respiratory epithelium. Of all the paranasal sinuses, the sphenoid sinus is affected in only 1-7% of the cases. We present two cases of mucocele of the sphenoid sinus involving the posterior ethmoidal cells. We consider here their clinical presentation, use of neuroimaging in the diagnosis, surgical care and postoperative results. Both patients presented with a history of persistent headache and in addition, one of them had a paresis of the right oculomotor and abducens nerves. A transnasal endoscopic sphenoidectomy was performed in both patients, in one - with an evacuation of the mucocele and marsupialization, and in the other - with a balloon dilatation of the natural foramen of the sinus. Postoperatively, a complete reversal of the symptoms was observed in both patients. Mucocele of the paranasal sinuses should be considered as a diagnosis in cases of persistent headache with a primarily retrobulbar location and eye symptoms. Computed tomography and magnetic resonance imaging can be used to successfully diagnose the disease. The transnasal endoscopic sphenoidectomy is the therapeutic method of choice which allows evacuation of the mucocele, while the marsupialization allows good drainage and prevents recurrence. PMID- 29341941 TI - Cauda Equina Syndrome Due to Lumbar Disc Herniation: a Review of Literature. AB - Cauda equina syndrome (CES) is a rare neurologic condition that is caused by compression of the cauda equina. Cauda equina consists of spinal nerves L2-L5, S1 S5 and the coccygeal nerve. The compression of these nerve roots can be caused mainly by lumbar disc herniation (45% of all causes). The diagnosis consists of two critical points: a) detailed history and physical examination and b) MRI or CT. The gold standard of the treatment of this syndrome is the surgical approach in combination with the timing of onset of symptoms. The surgery as an emergency situation is recommended in the fi rst 48 hours of onset of symptoms. Any delay in diagnosis and treatment leads to a poor prognosis of CES. PMID- 29341942 TI - Enteritis-associated Acute Febrile Neutrophilic Dermatosis with Acute Monoarthritis. AB - Febrile neutrofilic dermatosis is an uncommon entity with complex pathophysiology, usually secondary to an infection, a malignancy or an autoimmune disease. Extracutaneous manifestations of the disease are very rare as well. We report a patient with histologically confirmed acute febrile neutrophilic dermatosis caused by viral enteritis that was presented with painful rash along with acute monoarthritis and treated with oral corticosteroids. PMID- 29341943 TI - Beneficial Effect of Chronic Treatment with Extracts from Rhodiola Rosea L. and Curcuma Longa L. on the Immunoreactivity of Animals Subjected to a Chronic Mild Stress Model. AB - BACKGROUND: Recent studies have suggested increased levels of pro-inflammatory cytokines in depression. AIM: The present study aimed to evaluate the effect of extracts from Rhodiola and Curcuma on immunoreactivity of animals subjected to a chronic mild stress (CMS) model followed by lipopolysaccharide-induced inflammation. MATERIALS AND METHODS: Male Wistar rats (n=56) divided in 7 groups were treated orally with: distilled water 10 ml/kg (control and CMS model groups); Rhodiola 250 mg/kg; Rhodiola 500 mg/kg; Curcuma 250 mg/kg; Curcuma 500 mg/kg, Rhodiola 250 mg/kg and Curcuma 250 mg/kg. All groups except the control were stressed daily according to a CMS protocol. Changes in glucose preference, weight gain and locomotor activity were recorded. In the sixth week the animals were challenged with LPS and rats' sera were obtained for ELISA evaluation of TNF alpha and IL-6 levels. RESULTS: The animals from the model group decreased their weight gain, glucose preference and locomotor activity compared to controls. The groups exposed to stress and treated with Rhodiola 500 mg/kg, Curcuma 500 mg/kg and their combination increased their locomotor activity compared to the model group. High expression of the pro-inflammatory cytokines TNF-alpha and IL-6 were found in all groups exposed to CMS and challenged by LPS. CONCLUSIONS: The groups exposed to the stress procedure showed a variety of depression-like behavioral changes. In addition, ELISA tests showed that CMS is affecting rats' immunity by increasing the cytokines' levels. These changes could be reversed by administration of Rhodiola and Curcuma in combination suggesting synergic interaction regarding their anti-inflammatory and anti-stress effects. PMID- 29341944 TI - Nuclear Medicine Methods for Evaluation of Abnormal Parathyroid Glands in Patients with Primary and Secondary Hyperparathyroidism. AB - Considered rare disease in the past, primary hyperparathyroidism (PHPT) has dramatically increased in incidence over the past thirty years with the introduction of routine calcium measurements; it is now approximately 42 per 100 000 persons. By far, the most common lesion found in patients with PHPT is the solitary parathyroid adenoma, occurring in 85%-90% of patients, while in the rest 10%- 15% primary hyperplasia of the parathyroid glands is present. Currently, the most widely used surgical approach is minimally invasive parathyroidectomy which is associated with less post-surgery complications and shorter operation time. To be successful this procedure needs to rely on a precise preoperative localization of the abnormal parathyroid glands, hence preoperative parathyroid imaging gained so large importance. The rationale for locating abnormal parathyroid tissue prior to surgery is that the glands can be notoriously unpredictable in their location. There is a general consensus that the best imaging procedure identifying abnormal parathyroid glands is the preoperative scintigraphy with 99mTc-sestamibi or 99mTc tetrofosmin. It is characterized with high sensitivity and specificity exceeding those of ultrasound, CT or MRI. Combining scintigraphy with the other imaging techniques increases the precision for topic localization. PMID- 29341945 TI - Lessons about Causes and Management of an Ebola Outbreak. AB - Ebola virus disease (EVD) is one of the deadliest viral diseases. It is characterized by a high mortality rate due to the lack of effective and safe treatments or vaccines and its ability to spread at an unstoppable pace. The West Africa outbreak ended but the disease may strike again at any time. The latest epidemic was, by far, the deadliest to date. The most concern was why this outbreak was so different from the previous ones. We proposed in this review firstly to summarize the principal causes of its unprecedented spread and secondly to identify the steps for an effective management approach of a future Ebola outbreak. Attributes of the affected populations and insufficient control efforts were the main reasons of its amplification. This was complicated by a delayed international response. The health crisis was ignored for months until it got out of control. The management of Ebola presents a multitude of challenges in terms of preparedness and capacity to face an outbreak. In addition to the need for adequate health care facilities, ongoing surveillance tools, appropriate training of health workers and raising population awareness, readiness requires a large scale and coordinated international intervention to support affected and at risk nations, to intensify their response activities and to strengthen their capacities. Constant interventions after the outbreak are still needed to ensure that vital health and related service institutions in these countries are fully prepared to respond to an eminent epidemic. PMID- 29341946 TI - Microemulgel of Voriconazole: an Unfathomable Protection to Counter Fungal Contagiousness. AB - BACKGROUND: Fluconazole and ketoconazole both have poor minimum inhibitory concentration than voriconazole. Voriconazole had serious side effects in oral and intravenous doses. It has poor water solubility. The objective of the study was to prepare and optimize microemulgel of voriconazole for topical delivery. AIM: Formulation, development, and evaluation of voriconazole microemulgel for topical delivery. METHODS: Oil and emulsifi ers selected were on the basis of equilibrium solubility study and emulsification property respectively. The pseudo ternary plot and constrained simplex lattice design were applied for preparation of microemulsions. Microemulsions were subjected to micelle size, zeta potential, polydispersity index, and in vitro study. They were optimized by Design-Expert(r) 9.0.3.1 software. Formulation, development, evaluation and optimization of microemulgel were carried out. Microbial assay of an optimized batch of microemulgel was performed. RESULTS: Solubility of voriconazole in Parker Neem(r) oil was 7.51+/-0.14 mg/g. AcrysolTMK-150: PEG-400 in 4:1 ratio had the highest area for microemulsion. 59.2% AcrysolTMK-150, 14.8% PEG-400, 11% Parker Neem(r) oil, 15% rose water, and 1% voriconazole as an optimized batch of microemulsion was selected for preparation of microemulgel. Carbomer 934P found a good gelling agent in 0-2% w/w concentration. An optimized batch of microemulgel had 0.974 desirability value. An optimized batch of microemulgel and Nizral(r) cream had 37.32+/-0.63% and 26.45+/-0.63% zones of inhibition. CONCLUSION: Topical antifungal treatment was successfully achieved with voriconazole microemulgel. PMID- 29341947 TI - Spontaneous Direct Carotid-Cavernous Fistula in an Elderly Patient. AB - We describe the case of an 83-year-old woman with left-sided ophthalmoplegia. She had no family history of connective tissue disease. The computed tomography study found a dilated left cavernous sinus. The conventional cerebral panangiography confirmed the diagnosis - a direct carotid-cavernous fistula (CCF), with no evidence of ruptured aneurysm. The woman underwent endovascular treatment with coiling of the cavernous sinus in combination with application of the Onyx embolic agent in the fistula. During the first 48 hours after the embolization the local pain, exophthalmos and conjunctival injection of the left eye were significantly ameliorated. The pulsatile tinnitus on the left disappeared and the ptosis of the left eyelid partially recovered. Selective angiography is the best method for the diagnosis and classification of CCF. Currently, treatment is possible with low mortality and morbidity rates. The endovascular intervention is able to completely occlude the fistula and maintain adequate blood fl ow through the carotid artery. PMID- 29341948 TI - Biochemical Changes in Experimental Rat Model of Abdominal Compartment Syndrome. AB - BACKGROUND: Increased intra-abdominal pressure (IAP) causes tissue ischemia, subsequent hypoxia, and impairment of normal tissue metabolism. Elevation of IAP above 20 mmHg leads to progression of abdominal compartment syndrome (ACS) that is associated with organ dysfunction or failure not previously manifested. AIM: To evaluate the eff ects of diff erent grades and time of exposure to IAP on biochemical parameters and oxidative stress in organs aff ected by ischemia using previously developed rat model. RESULTS: Three experimental groups exposed to diff erent IAP and time frames were tested for liver, kidney, and pancreas injury by measuring the activities of tissue specifi c enzymes in blood serum. Elevated activities of aspartate aminotransferase, pancreatic amylase, lipase, and higher concentrations of D-lactate, urea, and creatinine were found in some of the experimental groups compared to a control group of animals not subjected to increased IAP. Increased levels of biomarkers of oxidative stress as well as decrease in concentration of the major cellular antioxidant glutathione indicated the presence of oxidative injury as a result of elevated IAP. CONCLUSIONS: The developed rat model is appropriate to study the mechanism and manifestation of tissue injury during diff erent grades of elevated IAP but also to test approaches aimed to attenuate the detrimental eff ects of ACS. This study also underlines the necessity of using not a single but a set of biochemical parameters in order to assess the severity of tissue injury during elevated IAP and progression to ACS. PMID- 29341949 TI - Impact of Air Pollution and Outdoor Temperature on the Rate of Chronic Obstructive Pulmonary Disease Exacerbations. AB - BACKGROUND: Environmental pollution can be one of the main risk factors for acute exacerbations of chronic obstructive pulmonary disease (COPD). AIM: To study the relationship between air pollution, outdoor temperature and exacerbations of COPD. MATERIALS AND METHODS: COPD patients (n=1432) were followed up for one year. The levels of particulate matter up to 10 MUm (PM10), nitrogen dioxide (NO2), sulfur dioxide (SO2) and outside temperatures were collected from the Environmental Agency database. RESULTS: A total of 309 acute COPD exacerbations (AECOPD) were recorded in the analysis. The daily mean concentrations of PM10 were found to correlate significantly with the daily mean concentrations of NO2 and SO2 (rho 0.34 and rho 0.49, respectively; p=0.0001). The negative correlations between the daily mean temperature and the daily mean levels of PM10, NO2 and SO2 were also significant (rho -0.44, rho -0.11, and rho -0.37, respectively; p=0.0001). The daily number of AECOPD correlated with the mean levels of PM10 in the previous six days (rho 0.14; p=0.02) and the lower outdoor temperature (rho -0.2; p=0.001). The negative correlation between the daily number of AECOPD and the mean daily temperature was stronger in days with levels of PM10 above 50 MUg/m3 (rho -0.3 p=0.02 vs. rho -0.18 p= 0.01). CONCLUSION: Lower daily mean temperatures were associated with the levels of air pollutants. The level of PM10 correlated with the levels of the other air pollutants. The daily number of AECOPD was found to correlate weakly, but signifi cantly with the mean level of PM10 in the previous six days. PMID- 29341950 TI - Clinical Characteristics of Ulceroglandular Tularemia in Two Bulgarian Regions, 2014-2015: a Report of Five Cases. AB - We present here the first five human cases with tularemia from two regions in South Bulgaria in which there had been no previous report of the infection. The cases occurred over a period of 8 months (December 2014 - August 2015). They were treated at the Department of Infectious Diseases in Stara Zagora University Hospital, Bulgaria. We present the clinical, epidemiological and laboratory data for four men and one woman (age range 52 to 73 years). Three men were hunters, four patients took part in handling, preparing/skinning and cooking the game animals. One man marked agricultural work and contact with straw stems. After a mean incubation period of 4.8+/-1.4 days ulcers appeared, followed by local painful lymphadenitis. All patients presented with liver enlargement and elevation in acute phase reactants. The etiological diagnosis was made by tube agglutination test in all cases, PCR positive result was found in one. The administered antibacterial treatment was a combination of aminoglycosides and 4 quinolones with the outcome being favorable for all patients. The current report suggests presence of Francisella tularensis in South Bulgaria. PMID- 29341951 TI - Spermicidal Constituents of Ethanolic Extract of Sacoglottis gabonensis Stem Bark. AB - AIM: To isolate the spermicidal constituents of Sacoglottis gabonensis. MATERIALS AND METHODS: The ethanolic extract with partitioned fractions of Sacoglottis gabonensis stem bark were subjected to sperm immobilization assay. The most active EtOAc fraction was further purifi ed by column and Semi-Preparative High Performance Liquid Chromatography to give compounds which were characterized by spectroscopic methods (UV, LC/MS, and NMR). The compound(s) was also tested for sperm immobilization activity. RESULTS: The ethanolic extract showed 100% signifi cant (p < 0.05) sperm immobilization activity at a concentration of 30 mg/mL at 20 s compared to both negative and positive controls. The most active ethyl acetate fraction yielded methyl 3,5-dihydroxy-4-methoxybenzoate, eriodictyol and bergenin. Bergenin had 100% sperm immobilization activity at 20 mg/mL in 60 s which was signifi cant (p < 0.05) also when compared to the positive and negative control while methyl 3,5-dihydroxy- 4-methoxybenzoate, eriodictyol were not active. CONCLUSION: The active spermicidal constituent in Sacoglottis gabonensis stem bark extract is bergenin. However, methyl 3,5-dihydroxy-4-methoxybenzoate and eriodictyol showed no activity. This plant is known for its aphrodisiac action; hence, caution may have to be exercised in its use because of its spermicidal eff ect. PMID- 29341952 TI - A Pharmacological Review: Leptadenia reticulata (Wight & Arn.); Jivanti: the Real Life Giving Plant. AB - The present review reveals a comprehensive description of various pharmacological studies carried out on Leptadenia reticulata, a source of several active compounds, i.e. Leptadenia reticulata plant belonging to family Asclepiadaceae, it is also known as 'Jivanti', used for the treatment of various ailments in human civilization as well as used in folk medicine as a remedy in various reported herbal formulations. The plant has been found to exhibit diverse pharmacological activities like antibacterial activity, anticancer activity, lactogenic eff ect, antioxidant activity, anti-implantation activity, anti asthmatic activity, modulating eff ect, activity of silver nano particles, hepatoprotective activity, antifungal activity, antidiabetic activity and anti infl ammatory activity. Traditionally, the plant promotes fi tness and vigor, the tone of voice, cures eye diseases, fever, and night blindness, cough, maintain pregnancy and gangrene. In this review, we give the recent scientifi c update on this plant with therapeutic potential and discuss the methods of carrying out studies. The present review draws the attention of researchers towards the potential therapeutic activity of Leptadenia reticulata for their active constitute. PMID- 29341953 TI - Lethality among Patients with HIV/AIDS Monitored in the Clinic of Infectious Diseases in St George University Hospital, Plovdiv, 2010-2014. AB - BACKGROUND: The introduction of complex antiretroviral therapy has resulted in signifi cant decrease in the mortality rate of HIV positive patients, but it still remains unacceptably high, especially in some groups of patients. AIM: To investigate the death rate in patients with HIV/AIDS, lethality and mortality in co-infection, and the most common causes and predictors of fatal outcome, focused on early diagnosis and appropriate therapy. MATERIALS AND METHODS: The study included 53 deceased patients with HIV/AIDS, monitored at the Clinic of Infectious Diseases in St George University Hospital, Plovdiv between 01.01.2010 and 31.12.2014. The methods of research included clinical analysis, laboratory tests, microbiological and serological tests (HCV, HBV, toxoplasmosis), ELISA, PCR. Statistical analysis was performed by descriptive statistics, the Student's t-test, the method of Van der Ward, and regression analysis (logistic regression). RESULTS: During the study period 316 patients with HIV/AIDS were monitored, 53 of them with lethal outcome. Lethality was 16.7% for the whole group; in intravenous drug users - 13.8%; in co-infected patients: HIV/M. tuberculosis - 46%, in HIV/HCV - 17.8%. Lethality and mortality in HIV(+) patients with co-infections in populations of diff erent age, gender, duration since starting sART and degree of immunodefi ciency (according to CD4, VL) was compared with the lethality and mortality in patients with these conditions from the general population. CONCLUSIONS: Fatal outcome in patients with HIV/AIDS was most commonly associated with co-infections HIV/M. tuberculosis and HIV/HCV. Predictors of a fatal outcome are pulmonary tuberculosis, advanced immunodefi ciency with VL> 500 000 c/MUL and CD4 <100/mm3, absence or non-systemic antiretroviral therapy. PMID- 29341954 TI - Carbapenemase Production of Clinical Isolates Acinetobacter baumannii and Pseudomonas aeruginosa from a Bulgarian University Hospital. AB - BACKGROUND: Production of Bla OXA-23, OXA-24, OXA-58 and hyperexpression of OXA 51 due to ISAba1 insertion sequence are the leading causes of carbapenem resistance in Acinetobacter baumannii. The loss of OprD transmembrane protein and the overexpression of some effl ux pumps are considered to be the main factors for carbapenem resistance in Pseudomonas aeruginosa whereas metallo-enzymes' production has a secondary role. AIM: To examine the carbapenem resistance due to carbapenemase production among clinically signifi cant Gram-negative non fermenters from St George University hospital, Plovdiv: A. baumannii and P. aeruginosa. MATERIALS AND METHODS: Forty three A. baumannii and 43 P. aeruginosa isolates, resistant or with intermediate resistance to imipenem and/or meropenem were included in the study. They were collected from patients admitted in 14 various hospital wards between 2010 and 2014. Both phenotypic and genetic methods were used for identifi cation and antimicrobial susceptibility testing. RESULTS: All A. baumannii demonstrated carbapenemase production determined by a modifi ed Hodge test whereas P. aeruginosa isolates did not show this phenomenon. OXA-23 genes were determined in 97.7% (42 out of 43) of A. baumannii isolates indistinguishable from the sequence of the classical ARI-1 gene. OXA-24, OXA-58 and overexpression of OXA-51 were not registered in any of the isolates. All P. aeruginosa were negative for blaVIM and blaIMP genes. CONCLUSION: The leading cause of carbapenem resistance in A. baumannii isolates from our hospital is the carbapenemase production due to the expression of OXA- 23 gene, whereas in P. aeruginosa - the loss of transmembrane OprD protein and the effl ux pumps' hyperexpression are suspected to be the main mechanisms. PMID- 29341955 TI - Emergency medicine residency programs: the changing face of graduate medical education. PMID- 29341956 TI - Microbiome associated with denture malodour. AB - In the past, our inability to cultivate most of the oral microorganisms has limited our view of this complex ecosystem. In the present study, we utilized next generation deep sequencing techniques to revisit the microbiome associated with denture malodour, a growing field with the rise in life expectancy. The study population comprised 26 full dentures patients (mean age 71 +/- 6.4, 10 males, 16 females) who visited the Tel Aviv University dental geriatric clinic. Denture malodour was rated organoleptically by a single odour judge, and dentures scoring 2 and above were considered malodour positive. DNA was extracted from the swab samples and analysed using next generation deep sequencing 16 s rDNA technology. Taxa identified could be classified into nine phyla, 29 genera and 117 species. Malodour positive samples showed a higher abundance of the phyla Firmicutes and Fusobacteria and the genera Leptotrichia, Atopobium, Megasphaera, Oribacterium and Campylobacter. Microbiome analysis demonstrated higher bacterial diversity within the malodourous samples and a significant difference in the microbial profile within the two groups. Taken together these results suggest a difference between the microbial populations of malodourous and non-malodourous dentures both in composition and diversity. PMID- 29341957 TI - Multiple tuning of magnetic biskyrmions using in situ L-TEM in centrosymmetric MnNiGa alloy. AB - Magnetic skyrmions are topologically protected spin configurations and have recently received growingly attention in magnetic materials. The existence of biskyrmions within a broad temperature range has been identified in our newly discovered MnNiGa material, promising for potential application in physics and technological study. Here, the biskyrmion microscopic origination from the spin configuration evolution of stripe ground state is experimentally identified. The biskyrmion manipulations based on the influences of the basic microstructures and external factors such as grain boundary confinement, sample thickness, electric current, magnetic field and temperature have been systematically studied by using real-space Lorentz transmission electron microscopy. These multiple tuning options help to understand the essential properties of MnNiGa and predict a significant step forward for the realization of skyrmion-based spintronic devices. PMID- 29341958 TI - Persistent Asymptomatic Papules on the Chest. PMID- 29341959 TI - Indeterminate Dendritic Cell Sarcoma in a Patient With Myelodysplastic Syndrome. PMID- 29341960 TI - Sclerotic Ulcerated Plaque on the Back. PMID- 29341961 TI - An Unusual Vesiculopustular Eruption: Challenge. PMID- 29341962 TI - Withdrawal of life-sustaining therapy. AB - PURPOSE OF REVIEW: The aim of this review is to examine literature relating to the withdrawal of life-sustaining therapy (WLST). RECENT FINDINGS: Discussions regarding end-of-life issues in adults and children are not occurring comprehensively. Discussions relating to the WLST in the pediatric population varies by institution and may vary by race, age, health insurance, diagnosis, and severity of illness. Completing advance directives prior to placement of life sustaining treatments is not consistent practice. With the WLST, differences in perspectives exist between medical specialties, within one specialty at different levels of training, and in physicians' ethical and psychological responses to the WLST. The timing of WLST appears to be influenced by ICU strain and communication issues. Study outcomes differ regarding the functionally favorable survival of patients who have had WLST. Universal guidelines for the WLST may not address individual patient circumstances. SUMMARY: Discussions of end-of-life issues early in the course of a patient's health care will contribute to the healthcare team's understanding and respect of the patient's wishes. This article addresses the withdrawal of left ventricular assist devices; attending physicians and physicians in training perspectives of WLST; do physicians distinguish between withholding and WLST; the timing of WLST; guidelines for the process of WLST; and pediatrics and end-of-life decisions. PMID- 29341963 TI - Role of the anesthesiologist-intensivist outside the ICU: opportunity to add value for the hospital or an unnecessary distraction? AB - PURPOSE OF REVIEW: Given the extremely expensive nature of critical care medicine, it seems logical that intensivists should play an active role in designing efficient systems of care. The true value of intensivists, however, is not well defined. RECENT FINDINGS: Anesthesiologists have taken key roles in improving patient safety in the operating room. Anesthesia-related mortality rates have decreased from 20 deaths per 100 000 anesthetics in the early 1980s to less than one death per 100 000 currently. Anesthesiologist-intensivists remain rare (less than 5% of certified anesthesiologists), but increasingly play multiple roles within multidisciplinary teams. This review outlines the roles of intensivists in performance improvement, perioperative assessment; sedation services, extracorporeal and mechanical support, and code/rapid response teams. Critical-care physicians, by definition, work in collaborative multispecialty and multidisciplinary teams that make it difficult to isolate each team member's precise contribution to healthcare value. SUMMARY: Anesthesiologist-intensivists working outside their usual environment provide leadership and clinical guidance towards improving patient outcomes. PMID- 29341964 TI - Renal Decapsulation Prevents Intrinsic Renal Compartment Syndrome in Ischemia Reperfusion-Induced Acute Kidney Injury: A Physiologic Approach. AB - OBJECTIVES: Acute kidney injury is a serious complication with unacceptably high mortality that lacks of specific curative treatment. Therapies focusing on the hydraulic behavior have shown promising results in preventing structural and functional renal impairment, but the underlying mechanisms remain understudied. Our goal is to assess the effects of renal decapsulation on regional hemodynamics, oxygenation, and perfusion in an ischemic acute kidney injury experimental model. METHODS: In piglets, intra renal pressure, renal tissue oxygen pressure, and dysoxia markers were measured in an ischemia-reperfusion group with intact kidney, an ischemia-reperfusion group where the kidney capsule was removed, and in a sham group. RESULTS: Decapsulated kidneys displayed an effective reduction of intra renal pressure, an increment of renal tissue oxygen pressure, and a better performance in the regional delivery, consumption, and extraction of oxygen after reperfusion, resulting in a marked attenuation of acute kidney injury progression due to reduced structural damage and improved renal function. CONCLUSIONS: Our results strongly suggest that renal decapsulation prevents the onset of an intrinsic renal compartment syndrome after ischemic acute kidney injury. PMID- 29341966 TI - Surveying the Literature: Synopsis of Recent Key Publications. PMID- 29341965 TI - Osmotic Shifts, Cerebral Edema, and Neurologic Deterioration in Severe Hepatic Encephalopathy. AB - OBJECTIVES: We sought to determine the effect of acute electrolyte and osmolar shifts on brain volume and neurologic function in patients with liver failure and severe hepatic encephalopathy. DESIGN: Retrospective analysis of brain CT scans and clinical data. SETTING: Tertiary care hospital ICUs. PATIENTS: Patients with acute or acute-on-chronic liver failure and severe hepatic encephalopathy. INTERVENTIONS: Clinically indicated CT scans and serum laboratory studies. MEASUREMENTS AND MAIN RESULTS: Change in intracranial cerebrospinal fluid volume between sequential CT scans was measured as a biomarker of acute brain volume change. Corresponding changes in serum osmolality, chemistry measurements, and Glasgow Coma Scale were determined. Associations with cerebrospinal fluid volume change and Glasgow Coma Scale change for initial volume change assessments were identified by Spearman's correlations (rs) and regression models. Consistency of associations with repeated assessments was evaluated using generalized estimating equations. Forty patients were included. Median baseline osmolality was elevated (310 mOsm/Kg [296-321 mOsm/Kg]) whereas sodium was normal (137 mEq/L [134-142 mEq/L]). Median initial osmolality change was 9 mOsm/kg (5-17 mOsm/kg). Neuroimaging consistent with increased brain volume occurred in 27 initial assessments (68%). Cerebrospinal fluid volume change was more strongly correlated with osmolality (r = 0.70; p = 4 * 10) than sodium (r = 0.28; p = 0.08) change. Osmolality change was independently associated with Glasgow Coma Scale change (p = 1 * 10) and cerebrospinal fluid volume change (p = 2.7 * 10) in initial assessments and in generalized estimating equations using all 103 available assessments. CONCLUSIONS: Acute decline in osmolality was associated with brain swelling and neurologic deterioration in severe hepatic encephalopathy. Minimizing osmolality decline may avoid neurologic deterioration. PMID- 29341968 TI - And Before That. PMID- 29341967 TI - New Modalities for the Administration of Inhaled Nitric Oxide in Intensive Care Units After Cardiac Surgery or for Neonatal Indications: A Prospective Observational Study. AB - BACKGROUND: Nitric oxide (NO) has a well-known efficacy in pulmonary hypertension (PH), with wide use for 20 years in many countries. The objective of this study was to describe the current use of NO in real life and the gap with the guidelines. METHODS: This is a multicenter, prospective, observational study on inhaled NO administered through an integrated delivery and monitoring device and indicated for PH according to the market authorizations. The characteristics of NO therapy and ventilation modes were observed. Concomitant pulmonary vasodilator treatments, safety data, and outcome were also collected. Quantitative data are expressed as median (25th, 75th percentile). RESULTS: Over 1 year, 236 patients were included from 14 equipped and trained centers: 117 adults and 81 children with PH associated with cardiac surgery and 38 neonates with persistent PH of the newborn. Inhaled NO was initiated before intensive care unit (ICU) admission in 57%, 12.7%, and 38.9% with an initial dose of 10 (10, 15) ppm, 20 (18, 20) ppm, and 17 (11, 20) ppm, and a median duration of administration of 3.9 (1.9, 6.1) days, 3.8 (1.8, 6.8) days, and 3.1 (1.0, 5.7) days, respectively, for the adult population, pediatric cardiac group, and newborns. The treatment was performed using administration synchronized to the mechanical ventilation. The dose was gradually decreased before withdrawal in 86% of the cases according to the usual procedure of each center. Adverse events included rebound effect for 3.4% (95% confidence interval [CI], 0.9%-8.5%) of adults, 1.2% (95% CI, 0.0%-6.7%) of children, and 2.6% (95% CI, 0.1%-13.8%) of neonates and methemoglobinemia exceeded 2.5% for 5 of 62 monitored patients. Other pulmonary vasodilators were associated with NO in 23% of adults, 95% of children, and 23.7% of neonates. ICU stay was respectively 10 (6, 22) days, 7.5 (5.5, 15) days, and 9 (8, 15) days and ICU mortality was 22.2%, 6.2%, and 7.9% for adults, children, and neonates, respectively. CONCLUSIONS: This study confirms the safety of NO therapy in the 3 populations with a low rate of rebound effect. Gradual withdrawal of NO combined with pulmonary vasodilators are current practices in this population. The use of last-generation NO devices allowed good compliance with recommendations. PMID- 29341969 TI - Pursuing Normality: Reflections on Cancer Survivorship Care of Lymphoma Survivors. AB - BACKGROUND: The present study explored the reflections on cancer survivorship care of lymphoma survivors in active treatment. Lymphoma survivors have survivorship care needs, yet their participation in cancer survivorship care programs is still reported as low. OBJECTIVE: The aim of this study was to understand the reflections on cancer survivorship care of lymphoma survivors to aid the future planning of cancer survivorship care and overcome barriers to participation. METHODS: Data were generated in a hematological ward during 4 months of ethnographic fieldwork, including participant observation and 46 semistructured interviews with 9 lymphoma survivors. Interpretive description methodology and social practice theory guided the analytical framework. RESULTS: "Pursuing normality" was an overall finding and was comprised of 2 overarching patterns, "future prospects" and "survivorship care perceptions," both implying an influence on whether to participate in cancer survivorship care programs. Because of "pursuing normality," 8 of 9 participants opted out of cancer survivorship care programming due to prospects of "being cured" and perceptions of cancer survivorship care as "a continuation of the disease." CONCLUSION: The findings add to our understanding of possible barriers for participation in cancer survivorship care and outline important aspects to account for in the practice of health professionals. IMPLICATIONS FOR PRACTICE: The study findings may guide practice to establish a systematic approach for providing information to cancer survivors regarding the possible management of their symptoms and of the content and purpose of cancer survivorship care. PMID- 29341970 TI - Does the use of indirect calorimetry change outcome in the ICU? Yes it does. AB - PURPOSE OF REVIEW: To review the recent findings on metabolic monitoring and possible beneficial effects of an adequate nutrition therapy, based on indirect calorimetry as the golden standard to predict energy expenditure. RECENT FINDINGS: in the last decades, major steps are taken in the field of metabolism and nutrition, evolving from nutrition as a baseline support to a therapeutic intervention. The aspect of energy expenditure is of cardinal importance, and technical possibilities have impressively improved: from the first 'calorimetre' in 1789 to the new generation, clinical applicable indirect calorimeters and the high accuracy and easy use model reaching high technology readiness level [Oshima et al. (2017). Clin Nutr 36:651]. Several recent studies provide information on the technique of metabolic monitoring itself and the positive effects of implementation of the tool in a high-end nutritional care plan [Oshima et al. (2017). Clin Nutr 36:651]. The combination of correct energy provision and protein prescription has shown benefits, and mortality of ICU patients is related to the amount of energy provided [Zusman et al. (2016). Crit Care 20:367]. The use of a monitor per se will not change outcome. Optimal dosing of artificial nutrition can be achieved by the use of a parameter acquired by a measurement instead of by inaccurate equations. In the era of precision medicine, this approach has shown positive effects on outcome. Moreover, above all, the concept of metabolic monitoring of the critically ill is just an issue of common sense. SUMMARY: Metabolic monitoring by indirect calorimetry is achieving a level in which it can be implemented in critical care practice. Evidence is available to prove that by guiding your nutritional therapy by measured values, it will change outcome of critically ill patients. PMID- 29341971 TI - Atopy in Patients With Ocular Cicatricial Pemphigoid. AB - PURPOSE: To evaluate the presence of atopy in patients with ocular cicatricial pemphigoid (OCP). METHOD: Patient encounters between August 2005 and November 2016 at the Massachusetts Eye Research and Surgery Institute (MERSI) were searched to identify those with biopsy-proven OCP who had concurrent evidence of atopy. RESULTS: There were 230 patients with biopsy-proven OCP. Thirty-three of them were found to have clinical symptoms of atopy (asthma, hay fever, and eczema) and of these, 23 had evidence of atopy in their conjunctival biopsy specimens. All patients were administered immunomodulatory therapy for treatment of their OCP with 20 patients requiring additional antiallergy treatment to control residual atopic ocular symptoms. Among patients who used antiallergy medications, 80% showed improvement in residual symptoms. Rituximab and/or intravenous immunoglobulin is a preferred OCP medication for patients with OCP with some evidence of atopy. CONCLUSIONS: Clinicians should consider the coexistence of atopy in patients with OCP, especially in those with persistent symptoms after initiation of immunomodulatory therapy. PMID- 29341972 TI - Ocular Surface and Tear Film Characteristics in a Sclerodermatous Chronic Graft Versus-Host Disease Mouse Model. AB - PURPOSE: To report the characteristics of the ocular surface in a previously established sclerodermatous chronic graft-versus-host disease (cGVHD) mouse model. METHODS: The ocular surface features and tear film parameters of the mouse model were assessed by histopathology, immunohistochemistry, electron microscopy, quantitative polymerase chain reaction, and flow cytometry. RESULTS: The mice exhibited loss of body weight and decreased tear secretion (P < 0.001), mimicking the clinical features of patients with cGVHD. Ocular examination demonstrated significant corneal epithelial staining, conjunctival (P < 0.001), and eyelid (P = 0.015) fibrosis compared with the control mice. The density of both goblet cells (P = 0.043) and microvilli was lower (P < 0.001), and the microvilli were shorter (P = 0.007) in the conjunctiva of cGVHD mice than those of the controls. The immunohistochemical studies demonstrated greater expression of CD45, CD4, and CD8 cells in the conjunctiva and eyelid tissues compared with the controls (P < 0.05 for all). In addition, reduced Forkhead box P3 (Foxp3)+ cells were found in both the peripheral blood (P < 0.001) and conjunctiva (P = 0.042) of cGVHD mice compared with the controls. CONCLUSIONS: The constellation of these findings suggests that the sclerodermatous cGVHD mouse model well recapitulates ocular manifestations of cGVHD in humans. This model can be used to study the mechanisms involved in the pathogenesis and treatment of chronic ocular graft-versus-host disease. PMID- 29341973 TI - Detection and Imaging of Lymphatic and Other Vessels in Corneal Neovascular Complexes. PMID- 29341974 TI - Feasibility and Effectiveness of Continuing Methadone Maintenance Treatment During Incarceration Compared With Forced Withdrawal. AB - BACKGROUND: Methadone maintenance treatment (MMT) is underutilized in correctional settings, and those receiving MMT in the community often undergo withdrawal upon incarceration. Federal and state regulations present barriers to providing methadone in correctional facilities. For this investigation, a community provider administered methadone to inmates who had been receiving methadone prior to incarceration. We hypothesized that inmates continued on MMT would have improved behavior during incarceration and post-release. METHODS: This open-label quasi-experimental trial (n = 382) compared MMT continuation throughout incarceration (n = 184) to an administrative control group (ie, forced withdrawal; n = 198) on disciplinary tickets and other program attendance during incarceration. Post-release, re-engagement in community-based MMT and 6-month recidivism outcomes were evaluated. RESULTS: Inmates in the MMT continuation group versus controls were less likely to receive disciplinary tickets (odds ratio [OR] = 0.32) but no more likely to attend other programs while incarcerated. MMT continuation increased engagement with a community MMT provider within 1 day of release (OR = 32.04), and 40.6% of MMT participants re-engaged within the first 30 days (vs 10.1% of controls). Overall, re-engagement in MMT was not associated with recidivism. However, among a subset of inmates who received MMT post-incarceration from the jail MMT provider (n = 69), re engagement with that provider was associated with reduced risk of arrest, new charges, and re-incarceration compared with those who did not re-engage. CONCLUSIONS: Results support interventions that facilitate continuity of MMT during and after incarceration. Engagement of a community provider is feasible and can improve access to methadone in correctional facilities. PMID- 29341975 TI - Validation of a Simplified Implant-Retained Cantilever Fixed Prosthesis. AB - PURPOSE: To evaluate the stress and strain generated in a fixed four-element prosthesis under the application of axial and nonaxial loads using a simplified implant-supported fixed prosthesis model. MATERIALS AND METHODS: A 3-dimensional model was constructed containing 3 implants with a conventional anatomical prosthesis (G1). The second model with the same implant system received the simplified prosthesis (G2). A load of 300 N was applied at an axial point and a nonaxial point through finite element analysis software. RESULTS: The G2 group showed different values of stress concentration in the prosthesis, fixation screw, retention screw, and abutments when compared with G1. Within a limit of 10% degrees of acceptability, the stress on the implants and the bone strain were enclosed for both models of prostheses. CONCLUSION: The simplified fixed prosthesis evaluated presents biomechanical behavior similar to an anatomical prosthesis in the implants and in the surrounding bone structure. PMID- 29341976 TI - Cone-Beam CT Assessment of the Position of the Medial Lingual Foramen for Dental Implant Placement in the Anterior Symphysis. AB - OBJECTIVES: To determine the position of the mandibular medial lingual foramen with cone-beam CT (CBCT) 3D imaging modalities when implants are to be placed in the anterior symphysis of the mandible. MATERIALS AND METHODS: A total of 111 CBCTs were considered acceptable and analyzed. The variables measured were as follows: (1) length of the outlet duct; (2) distance from the canal to the buccal cortex; (3) distance from the canal to the inferior cortex; (4) distance from the canal to the lingual cortex; (5) distance from the canal to the alveoli of the nearest tooth in dentate patients and distance from the canal to the marginal crest in edentulous patients; (6) angle of the duct to the horizontal Frankfurt plane; (7) diameter of the exit orifice; and (8) output level of the socket in relation to the teeth and the presence of bifurcations. RESULTS: A single canal was observed in 64% of patients; 2 canals were observed in 33% of patients; and a triple foramen was observed in 3% of patients. Women showed slightly lower values than men for each of the analyzed variables, with statistically significant differences in the length of the canal in edentulous (P = 0.029) and dentate patients (P = 0.027). CONCLUSION: The medial lingual foramen should be considered while performing presurgical planning. Careful attention is needed while setting the placement position of the dental implant to decrease the risk of complications. PMID- 29341977 TI - Elemental Composition at Silicone Hydrogel Contact Lens Surfaces. AB - OBJECTIVES: The outermost surface composition of 11 silicone hydrogel (SiHy) lenses was measured using X-ray photoelectron spectroscopy (XPS) to understand differences in wettability and potential interactions within an ocular environment. The SiHy lenses tested included balafilcon A, lotrafilcon A, lotrafilcon B, senofilcon A, comfilcon A, and somofilcon A reusable 2-week or monthly replacement lenses and delefilcon A, samfilcon A, narafilcon A, stenfilcon A, and somofilcon A daily disposable lenses. METHODS: All lenses were soaked for 24 hr in phosphate-buffered saline to remove all packaging solution and dried under vacuum overnight before analysis. X-ray photoelectron spectroscopy measurements were performed at 2 take-off angles, 55 degrees and 75 degrees , to evaluate changes in elemental composition as a function of depth from the surface. RESULTS: Detailed analysis of the XPS data revealed distinct differences in the chemical makeup of the different lens types. For all lenses, carbon, oxygen, and nitrogen were observed in varying quantities. In addition, fluorine was detected at the outermost surface region of comfilcon A (3.4%) and lotrafilcon A and B (<0.5%). The silicon content of the near-surface region analyzed varied among lens types, ranging from a low of 1.6% (lotrafilcon B) to a high of 16.5% (comfilcon A). In most instances, silicon enrichment at the outermost surface was observed, resulting from differences in lens formulation and design. CONCLUSIONS: Lenses differed most in their surface silicon concentration, with lotrafilcon B and delefilcon A exhibiting the lowest silicon contents and comfilcon A lens exhibiting the highest. Silicon has hydrophobic properties, which, when found at the surface, may influence the wettability of the contact lenses and their interaction with the tear film and ocular tissues. Higher surface silicon contents have been previously correlated with adverse effects, such as enhanced lipid uptake, thus underscoring the importance of monitoring their presence. PMID- 29341978 TI - Assessment of Clinical Trials for Devices Intended to Control Myopia Progression in Children. AB - The increased prevalence of myopia in the United States and other regions of the world, and the sight-threatening problems associated with higher levels of myopia have led to great interest in research designed to reduce these rates. As most of the progression of myopia occurs in childhood, these investigations have been directed toward slowing the progression of myopia in children. Treatments described to potentially slow the progression of myopia have included pharmacological interventions, multifocal spectacles, and multifocal correction created by contact lenses. Although some contact lens clinical trials have demonstrated promising results in slowing the progression of myopia, many of these studies have significant limitations, including only short follow-up times, limited randomization, and incomplete masking. Such limitations have underscored the need to develop a more robust clinical study design, so that future studies can demonstrate whether contact lenses, as well as other medical devices, can be used in a safe and effective manner to control myopia progression. We review previous key studies and discuss study design and regulatory issues relevant to future clinical trials. PMID- 29341979 TI - Wilson's Disease in Children: A Position Paper by the Hepatology Committee of the European Society for Paediatric Gastroenterology, Hepatology and Nutrition. AB - BACKGROUND: Clinical presentations of Wilson's disease (WD) in childhood ranges from asymptomatic liver disease to cirrhosis or acute liver failure, whereas neurological and psychiatric symptoms are rare. The basic diagnostic approach includes serum ceruloplasmin and 24-hour urinary copper excretion. Final diagnosis of WD can be established using a diagnostic scoring system based on symptoms, biochemical tests assessing copper metabolism, and molecular analysis of mutations in the ATP7B gene. Pharmacological treatment is life-long and aims at removal of copper excess by chelating agents as D-penicillamine, trientine, or inhibition of intestinal copper absorption with zinc salts. Acute liver failure often requires liver transplantation. This publication aims to provide recommendations for diagnosis, treatment, and follow-up of WD in children. METHODS: Questions addressing the diagnosis, treatment, and follow-up of WD in children were formulated by a core group of ESPGHAN members. A systematic literature search on WD using MEDLINE, EMBASE, Cochrane Database from 1990 to 2016 was performed focusing on prospective and retrospective studies in children. Quality of evidence was assessed according to the GRADE system. Expert opinion supported recommendations where the evidence was regarded as weak. The ESPGHAN core group and ESPGHAN Hepatology Committee members voted on each recommendation, using the nominal voting technique. PMID- 29341980 TI - How Much Free Sugars Intake Should Be Recommended for Children Younger Than 2 Years Old? PMID- 29341981 TI - Response to Letter: How Much Free Sugars Intake Should Be Recommended for Children Younger Than Two Years Old? PMID- 29341982 TI - Extensive Necrotic Skin Lesions Due to Post-varicella Protein S Deficiency. AB - Postvaricella protein S deficiency is a rare and severe disease. We report a case of extensive necrotic skin lesions of acute onset 7 days after varicella in a 4 year-old girl. Protein S antigen and activity were <10%, and antiprotein S antibodies were detected. She was treated with anticoagulation, plasmapheresis and fresh frozen plasma. She survived but required leg amputation. PMID- 29341983 TI - Diarrheagenic Escherichia coli and Acute Gastroenteritis in Children in Davidson County, Tennessee, United States: A Case-control Study. AB - BACKGROUND: Diarrheagenic Escherichia coli (DEC) is an important cause of acute gastroenteritis in children; however, there is limited information available on the epidemiology, phylogenetics, serotyping and antibiotic susceptibility of DEC in children in the United States. The aim of this study was to determine the molecular epidemiology of DEC among children with and without acute gastroenteritis in Davidson County, Tennessee. METHODS: This prospective, frequency matched, case-control study recruited subjects 15 days to 17 years of age and detected DEC with polymerase chain reaction from stool samples. Additional testing was done to define phylogenetics and antibiotics resistance. RESULTS: Among 1267 participants, 857 cases and 410 controls, 5.5% were positive for at least one subtype of DEC. Enteroaggregative E. coli [n = 32 (45%)] was the most common subtype followed by enteropathogenic E. coli (EPEC) [n = 30 (43%)], Shiga toxin-producing E. coli [n = 4 (6%)] and diffusely adherent E. coli [n = 4 (6%)]. No significant difference in prevalence of DEC was found between cases (5%) and controls (7%) [odds ratio: 0.66 (95% confidence interval: 0.4-1.07)], and results were similar when data were stratified by subtypes and adjusted for age, sex, race and ethnicity. Substantial diversity was found among DEC isolates in terms of phylotypes and serotypes, and a large proportion was resistant to, at least, one antibiotic. CONCLUSIONS: Enteroaggregative E. coli and enteropathogenic E. coli were frequently found in both cases and controls in this study population. DNA-based methods for detection of these subtypes need further investigation to help differentiate between pathogenic and colonizing strains. PMID- 29341984 TI - Effect of Age at Vaccination on Rotavirus Vaccine Effectiveness in Bolivian Infants. AB - BACKGROUND: Rotavirus vaccines are less effective in developing countries versus developed countries. One hypothesis for this difference in performance is that higher levels of maternal antibodies in developing countries may interfere with vaccine response, suggesting that delayed dosing could be beneficial. The present analysis aims to assess whether rotavirus vaccine effectiveness (VE) varies by age at vaccination during routine use in Bolivia. METHODS: Data were merged from 2 postlicensure evaluations of monovalent rotavirus vaccine (RV1) in Bolivia, where 2 doses of RV1 are recommended at 2 and 4 months of age. For each dose, children were classified as receiving each dose "early," "on-time" or "late." Stratified unconditional logistic regression models were used to estimate VE, using unvaccinated children as the referent. VE was calculated as (1 - odds ratio) * 100%. Models were adjusted for hospital, age and time since RV1 introduction (via including terms for month and year of birth). RESULTS: VE for 2 doses of RV1 tended to be higher in infants receiving the first dose early (VE, 92%; 95% confidence interval: 70%-98%), when compared with infants receiving their first dose on-time [72% (62%-81%)] or late [68% (51%-79%)]. Estimates of VE were not substantially different when comparing children by age at second dose [early: VE, 76% (50%-89%); on-time: VE, 70% (50%-89%); late: VE, 75% (60%, 84%)], including all children. CONCLUSIONS: Our results indicate that early administration may improve VE and support the current World Health Organization recommendations for the RV1 schedule. PMID- 29341985 TI - Dexmedetomidine as Single Continuous Sedative During Noninvasive Ventilation: Typical Usage, Hemodynamic Effects, and Withdrawal. AB - OBJECTIVES: Dexmedetomidine use in pediatric critical care is increasing. Its prolonged effects as a single continuous agent for sedation are not well described. The aim of the current study was to describe prolonged dexmedetomidine therapy without other continuous sedation, specifically the hemodynamic effects, discontinuation strategies, and risk factors for withdrawal. DESIGN: Retrospective chart review. SETTING: Large, single-center, quaternary care pediatric academic institution. PATIENTS: Data from 382 children, less than 18 years old admitted to the PICU who received dexmedetomidine for more than 24 hours without other infusions for sedation during noninvasive positive pressure ventilation. INTERVENTIONS: Usual care practices for dexmedetomidine use were described. Discontinuation strategies were categorized as abrupt discontinuation, wean from dexmedetomidine infusion, and transition to enteral clonidine. MEASUREMENTS AND MAIN RESULTS: Median peak and cumulative doses with interquartile range were 1 ug/kg/hr (0.6-1.2 ug/kg/hr) and 30 ug/kg (20-50 ug/kg), respectively, and median duration was 45 hours (34-66 hr). Four hours after reaching peak dose, we observed a decrease in heart rate (p < 0.01) with 28% prevalence of bradycardia and an increase in systolic blood pressure (p < 0.01) with 33% prevalence of hypertension and 2% hypotension. During the escalation phase, the prevalence of bradycardia and hypotension were 75% and a 30%, respectively. Three-hundred thirty-six patients (88%) had abrupt discontinuation, 37 (10%) were weaned, and nine (2%) were transitioned to clonidine. Nineteen patients (5%) experienced withdrawal. Univariate risk of withdrawal was most associated with duration: odds ratio equal to 1.5 (1.3-1.7) for each 12-hour period (p < 0.01). By multivariate analysis including age, discontinuation group, dexmedetomidine cumulative dose, and peak dose, only cumulative dose remained significant with an odds ratio equal to 1.3 (1.1-1.5) for each 10 MUg/kg (p < 0.01). CONCLUSIONS: Dexmedetomidine use for noninvasive positive pressure ventilation sedation in pediatric critical care has predictable hemodynamic effects including bradycardia and hypertension. Although withdrawal was associated with higher cumulative dose, these symptoms were effectively managed with short-term enteral clonidine. PMID- 29341987 TI - BSN in 10: It's the law! PMID- 29341986 TI - Pulmonary Dead Space Fraction and Extubation Success in Children After Cardiac Surgery. AB - OBJECTIVES: 1) Determine the correlation between pulmonary dead space fraction and extubation success in postoperative pediatric cardiac patients; and 2) document the natural history of pulmonary dead space fractions, dynamic compliance, and airway resistance during the first 72 hours postoperatively in postoperative pediatric cardiac patients. DESIGN: A retrospective chart review. SETTING: Cardiac ICU in a quaternary care free-standing children's hospital. PATIENTS: Twenty-nine with balanced single ventricle physiology, 61 with two ventricle physiology. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: We collected data for all pediatric patients undergoing congenital cardiac surgery over a 14-month period during the first 72 hours postoperatively as well as prior to extubation. Overall, patients with successful extubations had lower preextubation dead space fractions and shorter lengths of stay. Single ventricle patients had higher initial postoperative and preextubation dead space fractions. Two-ventricle physiology patients had higher extubation failure rates if the preextubation dead space fraction was greater than 0.5, whereas single ventricle patients had similar extubation failure rates whether preextubation dead space fractions were less than or equal to 0.5 or greater than 0.5. Additionally, increasing initial dead space fraction values predicted prolonged mechanical ventilation times. Airway resistance and dynamic compliance were similar between those with successful extubations and those who failed. CONCLUSIONS: Initial postoperative dead space fraction correlates with the length of mechanical ventilation in two ventricle patients but not in single ventricle patients. Lower preextubation dead space fractions are a strong predictor of successful extubation in two ventricle patients after cardiac surgery, but may not be as useful in single ventricle patients. PMID- 29341989 TI - A private case of allergic contact dermatitis. PMID- 29341988 TI - Utilizing advance care planning codes. PMID- 29341990 TI - Non-fasting versus fasting cholesterol measurement. AB - Fasting for cholesterol measurement has long been the accepted convention. Recent research expounded in clinical guidelines indicates that nonfasting cholesterol measurements predict outcomes at least as well as fasting cholesterol measurements. In most-but not all-clinical scenarios, fasting is not necessary. This article provides clinical recommendations based on the literature. PMID- 29341991 TI - Autism spectrum disorder in primary care. PMID- 29341992 TI - Periodontal disease in children with type 2 diabetes mellitus. PMID- 29341993 TI - Examining changes to statewide NP practice in Connecticut. AB - In 2014, Connecticut legislators eliminated the need for advanced practice registered nurses with 2,000 practice hours to obtain collaborative practice agreements with physicians. This study examined resulting practice changes, barriers, and suggestions for improved implementation of independent practice. Thirteen NPs participated in focus groups to share their experiences and recommendations. PMID- 29341994 TI - Understanding tuberculosis in an era of global travel. AB - With the resurgence of tuberculosis (TB), it is imperative that healthcare providers have the necessary skills to manage the specialized issues of prevention, recognition, and treatment of TB. The case study in this article illustrates these skills for NPs and other advanced practice providers. PMID- 29341996 TI - Retinal Arterio-Arterial Collaterals in Susac Syndrome. AB - BACKGROUND: The ophthalmic findings of Susac syndrome (SS) consist of visual field defects related to branch retinal artery occlusion (BRAO), and fluorescein angiography (FA) reveals a unique staining pattern. To date, retinal arterial collateral development has been described only in a single patient. Given that the immunopathological process in SS induces retinal ischemia, it is conceivable that abnormal blood vessel development may occur in affected individuals. METHODS: This is a retrospective observational study. The medical records including fundus photography and FA of all patients with SS were reviewed, and those with any type of retinal arterial collateral were identified. RESULTS: A total of 11 patients were identified with retinal collaterals. Five were men. Age ranged from 20 to 50 years. Ten patients had arterio-arterial (A-A) collaterals and 1 had arterio-venous (A-V) collaterals, and all had collaterals remote from the optic disc. No collaterals were present at onset of illness and the first developed at 9 months. CONCLUSIONS: The literature reveals scant evidence for the association between BRAO and retinal arterial collaterals. Our findings indicate that retinal arterial collaterals in SS are usually A-A and not A-V and may be more common in this disorder than previously believed. Collaterals do not develop early in the disease, and there may be a predilection toward development in men. The chronic inflammatory state of SS may be the stimulus for the development of these arterial collaterals. PMID- 29341997 TI - Literature Commentary. AB - In this issue of Journal of Neuro-Ophthalmology, M. Tariq Bhatti, MD and Mark L. Moster, MD will discuss the following 6 articles. PMID- 29341998 TI - Learning From Pediatrics to Secure Medical Education for the Future. PMID- 29341999 TI - Unlocking the Closet Door: Recurrent Identity Disclosure Experiences Among LGBTQ Students. PMID- 29342000 TI - From Subsistence to Sustenance in Physician-Scientist Training. PMID- 29342001 TI - Beyond USMLE Step 1. PMID- 29342002 TI - Finding Focus: Recruiting and Supporting Underrepresented Minority Trainees Starts With Faculty. PMID- 29342003 TI - How to Maximize Happiness, Stability, and Success Among Medical School Applicants. PMID- 29342004 TI - The Privilege of Patient Care: Often Experienced, Rarely Discussed. PMID- 29342005 TI - From Theoretical Physics to Atomic Bombs: Learning to Value Medical Epistemology. PMID- 29342006 TI - On Transitions in Training: Boost Bioethics Education. PMID- 29342007 TI - Learning to Teach. PMID- 29342008 TI - The R2C2 Model in Residency Education: How Does It Foster Coaching and Promote Feedback Use? AB - PURPOSE: The authors previously developed and tested a reflective model for facilitating performance feedback for practice improvement, the R2C2 model. It consists of four phases: relationship building, exploring reactions, exploring content, and coaching. This research studied the use and effectiveness of the model across different residency programs and the factors that influenced its effectiveness and use. METHOD: From July 2014-October 2016, case study methodology was used to study R2C2 model use and the influence of context on use within and across five cases. Five residency programs (family medicine, psychiatry, internal medicine, surgery, and anesthesia) from three countries (Canada, the United States, and the Netherlands) were recruited. Data collection included audiotaped site assessment interviews, feedback sessions, and debriefing interviews with residents and supervisors, and completed learning change plans (LCPs). Content, thematic, template, and cross-case analysis were conducted. RESULTS: An average of nine resident-supervisor dyads per site were recruited. The R2C2 feedback model, used with an LCP, was reported to be effective in engaging residents in a reflective, goal-oriented discussion about performance data, supporting coaching, and enabling collaborative development of a change plan. Use varied across cases, influenced by six general factors: supervisor characteristics, resident characteristics, qualities of the resident-supervisor relationship, assessment approaches, program culture and context, and supports provided by the authors. CONCLUSIONS: The R2C2 model was reported to be effective in fostering a productive, reflective feedback conversation focused on resident development and in facilitating collaborative development of a change plan. Factors contributing to successful use were identified. PMID- 29342009 TI - How Academic Health Systems Can Achieve Population Health in Vulnerable Populations Through Value-Based Care: The Critical Importance of Establishing Trusted Agency. AB - Improving population health may require health systems to proactively engage patient populations as partners in the implementation of healthy behaviors as a shared value using strategies that incentivize healthy outcomes for the population as a whole. The current reactive health care model, which focuses on restoring the health of individuals after it has been lost, will not achieve the goal of improved population health. To achieve this goal, health systems must proactively engage in partnerships with the populations they serve. Health systems will need the help of community entities and individuals who have the trust of the population being served and are willing to act on behalf of the health system if they are to achieve this effective working partnership. The need for these trusted agents is particularly pertinent for vulnerable and historically underserved segments of the population. In this Invited Commentary, the authors discuss ways by which health systems might identify, engage, and leverage trusted agents to improve the health of the population through value based care. PMID- 29342010 TI - The ever-expanding saga of the proprotein convertases and their roles in body homeostasis: emphasis on novel proprotein convertase subtilisin kexin number 9 functions and regulation. AB - PURPOSE OF REVIEW: The nine members of the proprotein convertase family play major physiological roles during development and in the adult, and their dysregulation leads to various diseases. The primary objective of this article is to review recent findings on the clinical importance of some of these convertases concentrating mostly on PCSK9, the ninth member of the convertase family. This includes the transcriptional and translational regulation of PCSK9, its ability to enhance the degradation of LDL receptor (LDLR), and the implication of PCSK9 in inflammation and sepsis. RECENT FINDINGS: PCSK9 levels are upregulated by E2F1 and reduced by specific miRNAs and by Annexin A2 that bind the 3' end of its mRNA. The implication of the LDLR in the clearance of pathogenic bacterial debris in mice and human puts in perspective a new role for PCSK9 in the regulation of sepsis. The specific implication of the LDLR in the clearance of Lp(a) is now confirmed by multiple studies of PCSK9 inhibition in human cohorts. SUMMARY: Emerging data suggest that PCSK9 can be regulated at the transcriptional and translational levels by specific factors and miRNAs. The identification of a novel pocket in the catalytic domain of PCSK9 represents a harbinger for a new class of small inhibitor drugs. The implication of the LDLR in reducing the effects of bacterially induced sepsis has been supported by both human and mouse data. Outcome studies confirmed the clinical importance of reducing PCSK9 levels. The present review puts in perspective new developments in the PCSK9 biology and its regulation of the LDLR. VIDEO ABSTRACT: http://links.lww.com/COL/A17. PMID- 29342011 TI - Utility of Time and Frequency Domain Parameters of Heart Rate Variability in the Context of Autonomic Disorders Characterized by Orthostatic Dysfunction. AB - PURPOSE: The clinical significance of heart rate variability in the context of autonomic dysfunction continues to be a matter of debate. A consensus is lacking on the best heart rate variability measures for clinical purposes. Therefore, the purpose of this study was to investigate the utility of heart rate variability parameters in healthy versus autonomic dysfunction. METHODS: Healthy young (n = 134), healthy older (n = 32), and patients with mild (postural tachycardia syndrome; n = 25) and severe (neurogenic orthostatic hypotension; n = 34) autonomic dysfunction were included. Time and frequency parameters during baseline, head-up tilt (HUT), and heart rate response to deep breathing (HRDB) were compared. RESULTS: Cardiovagal time parameters were significantly reduced during HUT in healthy young and postural tachycardia syndrome (P < 0.001). Healthy young had significantly higher time parameters during baseline, HUT, and HRDB (P < 0.01). This was reflected by a significantly lower resting heart rate (HR) (61.4 +/- 9.0 bpm vs. 76.8 +/- 13.6 bpm; P < 0.001) and a smaller [INCREMENT]HR during HUT (32.8 +/- 10.5 bpm vs. 44.4 +/- 13.3 bpm; P < 0.001). Time parameters increased in young and postural tachycardia syndrome during HRDB, which was characterized by a nonsignificant difference in [INCREMENT]HR between both groups. Time parameters were significantly higher in healthy old versus neurogenic orthostatic hypotension at rest and during HRDB (P < 0.05). During HUT, only the SD of all normal RR intervals remained significantly higher. Heart rate changes corroborated these findings. Resting HR was significantly lower in healthy older (62.6 +/- 11.0 bpm vs. 70.7 +/- 12.4 bpm), and [INCREMENT]HR during HRDB was significantly higher (15.9 +/- 9.2 bpm vs. 3.9 +/- 4.2 bpm; P < 0.001). During HUT, [INCREMENT]HR showed no significant differences. CONCLUSIONS: Time domain parameters of heart rate variability have a greater utility than frequency parameters in clinical autonomic disorders. PMID- 29342013 TI - Development of Minimally Invasive Surgery at Johns Hopkins. PMID- 29342012 TI - DIFFUSE CHORIORETINOPATHY WITHOUT SEROUS DETACHMENT ASSOCIATED WITH CARDIAC TRANSPLANTATION. AB - PURPOSE: To analyze an unusual case of widespread chorioretinopathy after cardiac transplantation for its potential etiology and clinical significance. METHODS: Clinical examinations included widefield and macular color and fundus autofluorescence photography, spectral domain optical coherence tomography, fluorescein angiography and indocyanine green angiography, full-field electroretinography, and Goldmann visual fields. PATIENT: A 44-year-old Hispanic woman was referred to rule out retinitis pigmentosa. Medical history revealed cardiac transplantation 6 months previously for idiopathic cardiomyopathy. RESULTS: Visual acuity was 20/20 in both eyes. The fundi showed widespread gray mottling and little pigmentation, but fundus autofluorescence revealed black speckling broadly across the fundus, and geographic retinal pigment epithelium loss in the nasal midperiphery of the left eye. Spectral domain optical coherence tomography showed normal inner retina, and surprising preservation of outer nuclear layer, but the ellipsoid zone line was fragmented, and the interdigitation zone line was replaced with irregular debris. Retinal pigment epithelium was very thin with occasional excrescences. Electroretinography showed mild loss of both rods and cones, with mild flicker peak delay only in the left eye. Fluorescein angiography showed no leakage, but a reticular pigment pattern in the macula. Indocyanine green angiography showed irregular arteriolar remodeling, and few large arteries. DISCUSSION AND CONCLUSION: Serous retinopathy is well known after organ transplantations, but this patient had retinal pigment epithelium and retinal damage well into the periphery and no leakage. Retinal dystrophy was deemed unlikely given the relatively good electroretinography. The indocyanine green vascular changes raise the possibility of a transient choroidal ischemic event during or shortly after cardiac surgery. The event altered retinal pigment epithelium diffusely, but allowed for enough regeneration to sustain retinal function. Diffuse transplant chorioretinopathy may be discovered if postcardiac transplant patients get peripheral retinal examinations. PMID- 29342015 TI - Post-treatment/Pre-operative PET Response Is Not an Independent Predictor of Outcomes for Patients With Gastric and GEJ Adenocarcinoma. PMID- 29342014 TI - Patterns and Predictors of Return to Work After Major Trauma: A Prospective, Population-based Registry Study. AB - OBJECTIVE: To characterize patterns of engagement in work during the 4-year period after major traumatic injury, and to identify factors associated with those patterns. BACKGROUND: Employment is an important marker of functional recovery from injury. There are few population-based studies of long-term employment outcomes, and limited data on the patterns of return to work (RTW) after injury. METHODS: A population-based, prospective cohort study using the Victorian State Trauma Registry. A total of 1086 working age individuals, in paid employment or full-time education before injury, were followed-up through telephone interview at 6, 12, 24, 36, and 48 months post-injury. Responses to RTW questions were used to define 4 discrete patterns: early and sustained; delayed; failed; no RTW. Predictors of RTW patterns were assessed using multivariate multinomial logistic regression. RESULTS: Slightly more than half of respondents (51.6%) recorded early sustained RTW. A further 15.5% had delayed and 13.3% failed RTW. One in 5 (19.7%) did not RTW. Compared with early sustained RTW, predictors of delayed and no RTW included being in a manual occupation and injury in a motor vehicle accident. Older age and receiving compensation predicted both failed and no RTW patterns. Preinjury disability was an additional predictor of failed RTW. Presence of comorbidity was an additional predictor of no RTW. CONCLUSIONS: A range of personal, occupational, injury, health, and compensation system factors influence RTW patterns after serious injury. Early identification of people at risk for delayed, failed, or no RTW is needed so that targeted interventions can be delivered. PMID- 29342016 TI - Unresectable Colorectal Liver Metastases: When Definitions Matter to Appropriately Assess Extreme Liver Resection Techniques. PMID- 29342017 TI - Response: "Unresectable Colorectal Liver Metastases: When Definitions Matter to Appropriately Assess Extreme Liver Resection Techniques". PMID- 29342018 TI - Mini- or Less-open Sublay Operation (MILOS): A New Minimally Invasive Technique for the Extraperitoneal Mesh Repair of Incisional Hernias. AB - OBJECTIVE: Improvement of ventral hernia repair. BACKGROUND: Despite the use of mesh and other recent improvements, the currently popular techniques of ventral hernia repair have specific disadvantages and risks. METHODS: We developed the endoscopically assisted mini- or less-open sublay (MILOS) concept. The operation is performed transhernially via a small incision with light-holding laparoscopic instruments either under direct, or endoscopic visualization. An endoscopic light tube was developed to facilitate this approach (EndotorchTM Wolf Company). Each MILOS operation can be converted to standard total extraperitoneal gas endoscopy once an extraperitoneal space of at least 8 cm has been created. All MILOS operations were prospectively documented in the German Hernia registry with 1 year questionnaire follow-up. Propensity score matching of incisional hernia operations comparing the results of the MILOS operation with the laparoscopic intraperitoneal onlay mesh operation (IPOM) and open sublay repair from other German Hernia registry institutions was performed. RESULTS: Six hundred fifteen MILOS incisional hernia operations were included. Compared with laparoscopic IPOM incisional hernia operation, the MILOS repair is associated with significantly a fewer postoperative surgical complications (P < 0.001) general complications (P < 0.004), recurrences (P < 0.001), and less chronic pain (P < 0.001). Matched pair analysis with open sublay repair revealed significantly a fewer postoperative complications (P < 0.001), reoperations (P < 0.001), infections (P = 0.007), general complications (P < 0.001), recurrences (P = 0.017), and less chronic pain (P < 0.001). CONCLUSIONS: The MILOS technique allows minimally invasive transhernial repair of incisional hernias using large retromuscular/preperitoneal meshes with low morbidity. The technique combines the advantages of open sublay and the laparoscopic IPOM repair.ClinicalTrials.gov Identifier NCT03133000. PMID- 29342019 TI - Hot Spotting as a Strategy to Identify High-Cost Surgical Populations. AB - OBJECTIVE: The aim of this study was to determine the feasibility of "hot spotting" in elective surgical populations. BACKGROUND: Prospective identification of high-cost patients, known as "hot spotting," is well developed in medical populations, but has not been performed in surgical populations. Population-based management of surgical expenditures requires identification of high-cost surgical patients to allow for effective implementation of cost-saving strategies. METHODS: Using 100% Medicare claims data for 2010 to 2013, we identified patients aged 65 to 99 years undergoing elective surgical procedures. We calculated price-standardized Medicare payments for the surgical episode from the index admission through 30 days after discharge. Patient-level factors associated with payments were analyzed by multivariable linear regression. RESULTS: Medicare patients in the highest decile of spending accounted for a disproportionate share of aggregate costs: 30% in Colectomy (COL), 22% in coronary artery bypass grafting (CABG), 19% in Total Hip Arthroplasty, and 18% in Total Knee Arthroplasty. Medicare expenditure differences between the highest and lowest deciles were because of a 5-fold difference for COL and 3-fold difference for CABG in index hospitalization cost. In contrast, for orthopedic procedures, there were 47- to 80-fold post-acute care expenditures between highest and lowest deciles. In multivariable analyses, patients with >=3 comorbidities had significantly higher costs than healthier patients. CONCLUSION: We found that a subset of multimorbid patients was responsible for a disproportionate share of total Medicare spending, but the individual components of spending vary by procedure. These findings suggest that targeting high-cost Medicare patients (ie, hot spotting) for cost containment efforts would be a potentially effective strategy to reduce costs in surgical populations. PMID- 29342020 TI - Editorial (Spring) Board? Gender Composition in High-impact General Surgery Journals Over 20 Years. AB - OBJECTIVE: To quantify gender composition of 10 high-impact general surgery journals, delineate how board composition has changed over time, and evaluate qualification metrics by gender. BACKGROUND: Underrepresentation of women on editorial boards may contribute to the gender-based achievement gap in surgery. METHODS: We performed a cross-sectional analysis of the editorial board gender composition among 10 high-impact general surgery journals in 1997, 2007, and 2017. Univariate and multivariate regression analyses were used to assess differences in editors' H-indices, academic rank, and number of advanced degrees. Differences in editor turnover and multiple board positions were evaluated for each time interval. RESULTS: Over 20 years, the proportion of women on editorial boards increased from 5% to 19%. After controlling for time since board certification, no differences between men and women's number of advances degrees, H-indices, or academic rank remained significant. Women and men were equally likely to hold multiple board positions (1997 P = 0.74; 2007 P = 0.42; 2017 P = 0.69), but men's editorial board tenure was longer across each time interval (1997-2007 P = 0.003; 2007-2017 P < 0.001; 1997-2017 P = 0.01). CONCLUSIONS: Women surgeons have a small but growing presence on surgical editorial boards, and gender-based qualification differences are likely attributable to practice length. Men's longer tenure on editorial boards may drive some of the observed disparity by limiting new appointment opportunities. Strategies such as imposing term limits or instituting merit-based performance reviews may help editorial boards capture the field's changing demographics. PMID- 29342021 TI - Nonoperative Management of Perforated Hollow Viscera in a Palliative Care Unit. PMID- 29342023 TI - Physiatry Reviews for Evidence in Practice Second-Order Peer Review: Does Massage Therapy Have Value in the Treatment for Tension Type Headache? PMID- 29342022 TI - Association Between Altered Hip Extension and Kinetic Gait Variables. AB - Kinematic and kinetic outcome measures are tightly linked in walking. Although altering motor output is a major goal of gait rehabilitation, little is understood regarding the relationship between altering a single kinematic variable and kinetic outcome changes. We designed a strategy to isolate hip extension alterations during walking on a treadmill to assess the change in kinetic outcomes. Ten healthy individuals walked on an instrumented split-belt treadmill with motion capture to calculate hip extension and kinetic outcomes at the following five different randomized cadences: self-selected cadence, self selected +/- 10%, and self-selected +/- 20%. The treadmill speed was held constant at the individual's self-selected walking speed, forcing cadence changes to result in successful alterations to hip extension, varying 8.3 degrees from the self-selected -20% to +20% cadence conditions. Kinetic outcomes demonstrated similar alterations. Hip extension changes at each cadence significantly correlated with kinetic changes in propulsive impulse (r = 0.852, P < 0.001), peak ankle power (r = 0.473, P = 0.002), and ankle plantarflexion work (r = 0.762, P < 0.001). These results demonstrate that kinetic outcomes are highly alterable in response to a kinematic gait change. This clinically relevant finding highlights the potential to improve motor output in individuals during rehabilitation by altering gait patterns to achieve more optimal limb positions. PMID- 29342024 TI - Clinical profile of patients with heart failure can predict rehospitalization and quality of life. AB - BACKGROUND: The aim of this retrospective study was to identify clinical, humoral and echocardiographic variables predicting rehospitalization and poor quality of life (QOL) in patients with reduced or mid-range ejection fraction heart failure. METHODS: From 2009 to 2012, 310 patients were admitted having signs and symptoms of heart failure with reduced ejection fraction. All the patients were followed by phone, calling the patients or the referring general practitioner. The Minnesota Living with Heart Failure Questionnaire (MLHFQ) was used as the instrument to evaluate QOL: MLHFQ less than 24 is a good QOL, 24-45 is moderate QOL and more than 45 is poor QOL. The primary event was poor QOL and/or rehospitalization at 4 years. RESULTS: Seventy-nine patients died at median time of 21 months; 4-year survival was 72 +/- 3%. Rehospitalization due to heart failure was recorded in 60 cases. Among 231 survivors, MLHFQ score was good in 99 (42%), moderate in 50 (21%) and poor in 88 (37%). Four-year freedom from death, poor QOL or rehospitalization was 51 +/- 3%. Multivariable analysis identified the following risk factors: heart rate at discharge at least 70 bpm, ischemic heart disease, atrial fibrillation, hypercholesterolemia, chronic pulmonary disease, N-terminal pro brain natriuretic peptide at discharge, severe tricuspid regurgitation and mitral regurgitation more than moderate. CONCLUSION: Clinical, laboratory and echocardiographic profile is crucial to predict long-term QOL of patients admitted for heart failure. PMID- 29342025 TI - Pictorial Representation of Joint Involvement in Different Types of Spondyloarthropathy. PMID- 29342026 TI - Reflections on a life in menopause. PMID- 29342027 TI - Response to letter to editor. PMID- 29342028 TI - Lymphedema-Distichiasis Syndrome in a Male Patient Followed for 16 Years. AB - Distichiasis is a challenging condition that may require multiple surgical interventions. Besides ophthalmologic concerns in children, distichiasis may be part of the lymphedema-distichiasis syndrome, which presents with lymphedema of variable time of onset. Other significant systemic disorders such as coarctation of the aorta and varicose veins have been reported in association with this syndrome and must be reviewed for proper patient care. The authors report the case of a 22-year-old male patient who had been treated for distichiasis and followed for 16 years. At his initial evaluation, at 6 years of age, he presented solely with ocular complaints due to distichiasis. Only after 13 years of repeated ophthalmic treatments and continuous follow up, lymphedema was observed. Lymphedema-distichiasis syndrome diagnosis must be considered in children with distichiasis, even in the absence of lymphedema. PMID- 29342029 TI - Association of Involutional Lower Eyelid Entropion with Reduced Upper Eyelid Position Relative to the Corneal Light Reflex: Quantification of Facial Asymmetry. AB - PURPOSE: To investigate the association between upper eyelid position relative to the corneal light reflex (MRD1) and to delineate an association between eyelid height and involutional lower eyelid entropion. METHODS: Retrospective study of patients presenting for entropion repair to an academic ophthalmic plastic surgery service. A total of 111 patients were included in the study; 95 had unilateral involutional lower eyelid entropion, and 16 had bilateral lower eyelid entropion. Patients with a history of previous eyelid surgery, trauma, upper eyelid entropion, or cicatricial changes were excluded from the study. RESULTS: Of the 95 patients with unilateral involutional lower eyelid entropion, 45 (47.4%) had a lesser MRD1 on the side ipsilateral to the involutional lower eyelid entropion. In this unilateral group, the mean MRD1 (+/- standard deviation) on the ipsilateral to the involutional lower eyelid entropion was 2.9 (+/-1.2) mm, while the mean MRD1 on the contralateral side was 3.3 (+/-1.0) mm. This difference was 0.4 mm and was statistically significant (p < 0.0001). Most patients with unilateral involutional entropion demonstrated a right-sided involutional lower eyelid entropion (56 of 95; 58.9%), although this finding was not statistically significant (p = 0.083). The frequency of true blepharoptosis (MRD1 <= 2.0 mm) was 24 of 95 (25.3%) in the unilateral involutional entropion group and was even higher in the bilateral involutional lower eyelid entropion group, with 7 of 16 (43.8%) patients exhibiting bilateral blepharoptosis. CONCLUSIONS: Patients presenting with involutional lower eyelid entropion tend to have a relatively reduced MRD1 on the ipsilateral (affected) side. When both lower eyelids are affected by involutional entropion, the reduced MRD1 tends to be more pronounced. PMID- 29342030 TI - Mesenchymal Chondrosarcoma of the Lacrimal Gland. AB - A 23-year-old woman presented with right-sided painless proptosis that developed in 12 months. MRI studies demonstrated a well-delineated tumorous enlargement of the right lacrimal gland with homogenous signal intensity and compressing the globe. The tumor was removed totally and in 1 piece with the tentative diagnosis of a pleomorphic adenoma. Pathologic examination revealed biphasic neoplastic elements, which were composed of the cartilaginous matrix and small round cell component. Immunohistopathological examination showed positive CD99 staining and negative reaction to S100, panCK, and CD15. The patient then received a total of 64 Gy orbital radiotherapy in 32 fractionations. There has been no recurrence or metastasis during 14 months of follow up. This case showed that mesenchymal chondrosarcoma may arise from the lacrimal gland and must be considered in the differential diagnosis of lacrimal gland tumors in young adults. PMID- 29342031 TI - Adenocarcinoma of Pigmented Ciliary Epithelium in a Child With Aicardi Syndrome and Congenital Microphthalmia With Cyst. AB - A 5-year-old girl with Aicardi syndrome and microphthalmia with cyst of the OD presented with progressive enlargement of the cyst causing pain. Microophthalmia with inferior cyst (35 * 25 * 12 mm) was noted at birth, and Aicardi syndrome was diagnosed at 10 months by the presence of the classic triad of callosal agenesis, infantile spasms, and chorioretinal lacunae. She underwent enucleation with cyst resection, and subsequent reconstruction with a dermis fat graft. Histopathologic study revealed adenocarcinoma of the pigmented ciliary epithelium. Full-body metastatic workup was negative. Adenocarcinoma of the pigmented ciliary epithelium is an extremely rare eye tumor with only 4 documented cases in the literature, none arising in a microophthalmic eye with cyst. Aicardi syndrome is also a rare disease that has been associated with increased incidence of malignancy and ocular abnormalities, but has never been described in association with microophthalmia with cyst or with adenocarcinoma of the pigmented ciliary epithelium. Herein, the authors present a review of the case and relevant literature. PMID- 29342032 TI - Angiomatosis of the Orbit: Clinical, Imaging, and Histologic Findings. AB - Angiomatosis is a complex vascular malformation that denotes a clinically extensive hemangioma, which either involves multiple tissue planes or extensively infiltrates 1 type of tissue. It is a rare condition characterized by diffuse proliferation of blood vessels admixed with fat and fibrotic tissue. Typically, this process involves the limbs in multiple tissue planes, including dermis, subcutis, muscle, and bone. In this report, the authors present the first case of angiomatosis infiltrating the orbit, controlled effectively with a combination of systemic steroids, radiation, and beta-blocker therapy. The characteristic imaging and histologic features and management options are discussed. PMID- 29342033 TI - Meningoencephalocele and Cerebrospinal Fluid Leak Complicating Orbital Decompression. AB - A 51-year-old man who had undergone right orbital decompression 5 months earlier developed a meningoencephalocele extending in the right sphenoid sinus through a skull base defect of the right ethmoid, sphenoid, and frontal bones. The authors report the third case to their knowledge of meningoencephalocele with cerebrospinal fluid leak after orbital decompression and discuss its management and measures that can be taken to prevent this rare but serious complication. PMID- 29342034 TI - Atypical Presentation of Squamous Papilloma. PMID- 29342036 TI - Trends in Intraoperative Testing During Cochlear Implantation. AB - OBJECTIVE: No consensus guidelines exist regarding intraoperative testing during cochlear implantation and wide variation in practice habits exists. The objective of this observational study was to survey otologists/neurotologists to understand practice habits and overall opinion of usefulness of intraoperative testing. STUDY DESIGN: Cross-sectional survey. SETTING: A web-based survey was sent to 194 practicing Otologists/Neurotologists. MAIN OUTCOME MEASURES: Questions included practice setting and experience, habits with respect to electrodes used, intraoperative testing modalities used, overall opinion of intraoperative testing, and practice habits in various scenarios. RESULTS: Thirty-nine of 194 (20%) completed the survey. For routine patients, ECAPs and EIs were most commonly used together (38%) while 33% do not perform testing at all. Eighty-nine percent note that testing "rarely" or "never" changes management. Fifty-one percent marked the most important reason for testing is the reassurance provided to the family and/or the surgeon. CONCLUSION: Intraoperative testing habits and opinions regarding testing during cochlear implantation vary widely among otologic surgeons. The majority of surgeons use testing but many think there is minimal benefit and that surgical decision-making is rarely impacted. The importance of testing may change as electrodes continue to evolve. PMID- 29342035 TI - Systematic Review of Hearing Preservation After Radiotherapy for Vestibular Schwannoma. AB - OBJECTIVE: To determine the long-term hearing preservation rate for spontaneous vestibular schwannoma treated by primary radiotherapy. DATA SOURCES: The MEDLINE/PubMed, Web of Science, Cochrane Reviews, and EMBASE databases were searched using a comprehensive Boolean keyword search developed in conjunction with a scientific librarian. English language papers published from 2000 to 2016 were evaluated. STUDY SELECTION: Inclusion criteria: full articles, pretreatment and posttreatment audiograms or audiogram based scoring system, vestibular schwannoma only tumor type, reported time to follow-up, published after 1999, use of either Gamma Knife or linear accelerator radiotherapy. EXCLUSION CRITERIA: case report or series with fewer than five cases, inadequate audiometric data, inadequate time to follow-up, neurofibromatosis type 2 exceeding 10% of study population, previous treatment exceeding 10% of study population, repeat datasets, use of proton beam therapy, and non-English language. DATA EXTRACTION: Two reviewers independently analyzed papers for inclusion. Class A/B, 1/2 hearing was defined as either pure tone average less than or equal to 50 db with speech discrimination score more than or equal to 50%, American Academy of Otolaryngology-Head & Neck Surgery (AAO-HNS) Hearing Class A or B, or Gardner Robertson Grade I or II. Aggregate data were used when individual data were not specified. DATA SYNTHESIS: Means were compared with student t test. CONCLUSIONS: Forty seven articles containing a total of 2,195 patients with preserved Class A/B, 1/2 hearing were identified for analysis. The aggregate crude hearing preservation rate was 58% at an average reporting time of 46.6 months after radiotherapy treatment. Analysis of time-based reporting shows a clear trend of decreased hearing preservation extending to 10-year follow-up. This data encourages a future long-term controlled trial. PMID- 29342037 TI - Preservation of Cells of the Organ of Corti and Innervating Dendritic Processes Following Cochlear Implantation in the Human: An Immunohistochemical Study. AB - HYPOTHESIS: This study evaluates the degree of preservation of hair cells, supporting cells, and innervating dendritic processes after cochlear implantation in the human using immunohistochemical methods. BACKGROUND: Surgical insertion of a cochlear implant electrode induces various pathologic changes within the cochlea including insertional trauma, foreign body response, inflammation, fibrosis, and neo-osteogenesis. These changes may result in loss of residual acoustic hearing, adversely affecting the use of hybrid implants, and may result in loss of putative precursor cells, limiting the success of future regenerative protocols. METHODS: Twenty-eight celloidin-embedded temporal bones from 14 patients with bilateral severe to profound sensorineural hearing loss and unilateral cochlear implants were studied. Two sections including the modiolus or basal turn from each temporal bone were stained using antineurofilament, antimyosin-VIIa, and antitubulin antibodies in both the implanted and unimplanted ears. RESULTS: Inner and outer hair cells: Immunoreactivity was reduced throughout the implanted cochlea and in the unimplanted cochlea with the exception of the apical turn.Dendritic processes in the osseous spiral lamina: Immunoreactivity was significantly less along the electrode of the implanted cochlea than in the other segments.Inner and outer pillars, inner and outer spiral bundles, and Deiters' cells: Immunoreactivity was similar in the implanted and unimplanted cochleae. CONCLUSION: Insertion of a cochlear implant electrode may significantly affect the inner and outer hair cells both along and apical to the electrode, and dendritic processes in the osseous spiral lamina along the electrode. There was less effect on pillar cells, Deiters' cells, and spiral bundles. PMID- 29342038 TI - Utility of Noncontrast Magnetic Resonance Imaging for Detection of Recurrent Vestibular Schwannoma. AB - BACKGROUND: Gadolinium-enhanced T1-weighted magnetic resonance imaging (MRI) (T1WI) is the conventional imaging technique of choice to detect vestibular schwannoma (VS) recurrence or regrowth, despite suboptimal specificity secondary to enhancing postoperative changes. Furthermore, recent concerns regarding the accumulation of gadolinium in body tissues have led for a call to reduce the number of contrast-enhanced examinations. The objective of the current study is to evaluate the diagnostic accuracy of high-resolution noncontrast (three dimensional [3D] T2) MRI relative to gadolinium-enhanced T1WI in the detection of VS recurrence after resection. METHODS: Following Institutional Review Board approval, 13 consecutive postoperative patients with VS recurrence or regrowth were identified from a prospectively maintained clinical database in which recurrence was determined by progression on serial postoperative MRI examination. Three blinded neuroradiologists retrospectively evaluated a total of 41 postoperative MRI examinations from these patients using only gadolinium-enhanced T1WI and 3D T2 MRI for recurrence or regrowth. Interobserver agreement, differences in detection between the two sequences, and the sensitivity and specificity of 3D T2 MRI were assessed. RESULTS: Fifteen of the 41 postoperative MRIs demonstrated progression, as determined by examiner consensus on the gadolinium-enhanced T1WI. Agreement, measured using Krippendorff's alpha, was 0.82 for the 3D T2 images and 0.83 for the contrast-enhanced T1WI. All the three examiners demonstrated no difference in the detection of progression between the two sequences (McNemar's test p values 0.69 for examiner 1, 0.63 for examiner 2, and 0.99 for examiner 3). The sensitivity of 3D T2 was 0.78 (CI 0.60-0.96), while the specificity was 0.94 (CI 0.86-1.00). CONCLUSION: Noncontrast high-resolution 3D T2 MRI seems sufficient to assess for recurrence or regrowth after VS resection. The results of this study have implications for reducing cost, time, and adverse events associated with gadolinium administration in this population requiring serial follow-up examinations. These promising, yet preliminary findings warrant confirmation with a larger prospective cohort of patients. PMID- 29342039 TI - An Optimal Partial Ossicular Prosthesis Should Connect Both to the Tympanic Membrane and Malleus: A Temporal Bone Study Using Laser Doppler Vibrometry. AB - OBJECTIVE: To compare stapes vibrations in different partial ossicular replacement prosthesis (PORP) applications. METHODS: Stapedial vibrations were measured on fresh frozen human temporal bones with laser Doppler vibrometry. Eight different types of common ossiculoplasty methods were compared regarding recovery of stapes vibrations in relation with the normal ossicular chain. The PORPs were divided into three groups: 1) PORPs with the lateral contact only with the tympanic membrane, 2) PORPs with lateral contact only to the malleus handle, and 3) PORPs with lateral contact with both the malleus handle and the tympanic membrane. RESULTS: The PORPs with lateral contact only to the malleus handle performed better than the PORPs with lateral contact to the tympanic membrane only at 2 kHZ, but the best recovery was found in the group with contact both to the malleus handle and the tympanic membrane. CONCLUSION: The best sound transmission might be achieved by placing a PORP in contact with both the tympanic membrane and the handle of the malleus. PMID- 29342040 TI - Unilateral Sensorineural Hearing Loss Presenting With Bilateral Temporal Bone Lesions. PMID- 29342041 TI - History of the Research Fund of the American Otological Society. PMID- 29342043 TI - The American Otological Society at its Sesquicentennial: Insights Into the Society's Formative Years. AB - OBJECTIVE: To elucidate the sequence of events which led to the formation of the American Otological Society (AOS) in 1868 and to examine the lives and contributions of the nine founding members of the Society. METHODS: Study of primary historical documents, biographical material, and previous histories of the AOS. RESULTS: Earlier treatments of the history of the AOS minimally covered the events and personalities from the Society's formative period. The founders of the AOS were much influenced by recent advances in European Otology and the success of the nascent American Ophthalmological Society which had been founded in 1864. The AOS has long credited Elkanah Williams as its first president of the AOS, although he never actually served in this role and was not a contributor to otological literature. Documents suggest that 30 years old New York physician Daniel Bennett St John Roosa, recently returned from a grand tour of the leading European otological centers, was the principal advocate for the creation of the AOS. CONCLUSIONS: The 1860s were a pivotal period in the maturation of American Otology. Previously, most "aurists" were widely considered to be charlatans who practiced unscientifically and often unscrupulously. The AOS founder generation were a group of Ophthalmologists who strove to elevate otology from being a lesser appendage of the mother field to becoming a respected and scientifically based medical specialty in its own right. PMID- 29342042 TI - Long-term Administration of Salicylate-induced Changes in BDNF Expression and CREB Phosphorylation in the Auditory Cortex of Rats. AB - HYPOTHESIS: We investigated whether salicylate induces tinnitus through alteration of the expression levels of brain-derived neurotrophic factor (BDNF), proBDNF, tyrosine kinase receptor B (TrkB), cAMP-responsive element-binding protein (CREB), and phosphorylated CREB (p-CREB) in the auditory cortex (AC). BACKGROUND: Salicylate medication is frequently used for long-term treatment in clinical settings, but it may cause reversible tinnitus. Salicylate-induced tinnitus is associated with changes related to central auditory neuroplasticity. Our previous studies revealed enhanced neural activity and ultrastructural synaptic changes in the central auditory system after long-term salicylate administration. However, the underlying mechanisms remained unclear. METHODS: Salicylate-induced tinnitus-like behavior in rats was confirmed using gap prepulse inhibition of acoustic startle and prepulse inhibition testing, followed by comparison of the expression levels of BDNF, proBDNF, TrkB, CREB, and p-CREB. Synaptic ultrastructure was observed under a transmission electron microscope. RESULTS: BDNF and p-CREB were upregulated along with ultrastructural changes at the synapses in the AC of rats treated chronically with salicylate (p < 0.05, compared with control group). These changes returned to normal after 14 days of recovery (p > 0.05). CONCLUSION: Long-term administration of salicylate increased BDNF expression and CREB activation, upregulated synaptic efficacy, and changed synaptic ultrastructure in the AC. There may be a relationship between these factors and the mechanism of tinnitus. PMID- 29342045 TI - Jugular Foramen Meningioma. PMID- 29342044 TI - Elevated Level of Myeloperoxidase-Deoxyribonucleic Acid Complex in the Middle Ear Fluid Obtained From Patients With Otitis Media Associated With Antineutrophil Cytoplasmic Antibody-associated Vasculitis. AB - OBJECTIVE: The purpose was to explore the presence of myeloperoxidase (MPO) deoxyribonucleic acid (DNA) complex as a surrogate marker of neutrophil extracellular traps (NETs) in the middle ear fluid, and to clarify the correlation between its quantifiable level and hearing outcome in patients with otitis media associated with antineutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV). STUDY DESIGN: Prospective study. SETTING: Tertiary referral center. PATIENTS: Nine AAV patients presenting with otitis media. INTERVENTION: Collection of the fluid samples from middle ear. MAIN OUTCOME MEASURE: The quantifiable levels of MPO-DNA complex using an enzyme-linked immunosorbent assay. RESULTS: The quantifiable levels of MPO-DNA complex in patients with AAV were significantly higher than those in controls (p < 0.001). In particular, both ANCA-positive and -negative cases indicated higher levels of MPO-DNA complex compared with the controls (p = 0.004 and p = 0.006, respectively). The significant negative correlations were observed between the level of MPO-DNA complex and the functional hearing values for air (r = -0.82, p = 0.009) and bone conduction (r = -0.73, p = 0.028), respectively. CONCLUSION: This analysis is the first to reveal the presence of elevated levels of MPO-DNA complex in the middle ear fluid, suggesting the pathogenic role of NETs in otitis media associated with AAV. NETs may be a valuable biomarker for use in clinical decision-making and predicting hearing outcome, regardless of ANCA status. PMID- 29342046 TI - Large Facial Nerve Schwannoma With Extensive Temporal Bone Destruction. PMID- 29342047 TI - Direction-fixed and Direction-changing Positional Nystagmus in Ramsay Hunt Syndrome. AB - OBJECTIVES: To investigate the incidence of positional nystagmus (PN) using a head-roll test in patients with Ramsay Hunt syndrome with vertigo (RHS_V) and discuss possible mechanisms. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral academic medical center. PATIENTS: Twenty-eight patients with RHS_V were enrolled. MAIN OUTCOME MEASURE: Eye movements were recorded at positions of head roll to the right or left, and PN was classified as direction-fixed or direction changing. Vestibular function tests including caloric test were performed. RESULTS: Direction-fixed nystagmus beating away from the affected side was the most common type of PN (61%), followed by direction-changing geotropic type (18%), direction-fixed nystagmus beating toward the affected side (14%), and direction-changing apogeotropic type (7%). The duration of nystagmus was longer than 60 seconds in all patients exhibiting direction-changing PN. Postcontrast T1 weighted internal auditory canal (IAC) magnetic resonance imaging showed enhancement of not only the facial and vestibulocochlear nerves, but also the inner ear structures or dura along the IAC, suggesting inflammatory changes within the labyrinthine membrane or IAC dura. CONCLUSION: Although direction fixed PN was more commonly observed (75%), direction-changing PN was also observed in some RHS_V patients (25%). The mechanism of direction-changing PN may be, at least in part, explained by the alteration of specific gravity of the lateral semicircular canal cupula or endolymph due to inflammation in the inner ear membrane. PMID- 29342048 TI - External Ear Arteriovenous Malformation. PMID- 29342049 TI - The Impact of the Transcanal Endoscopic Approach and Mastoid Preservation on Recurrence of Primary Acquired Attic Cholesteatoma. AB - OBJECTIVE: We aim to investigate the factors associated with recurrent disease following surgery for primary acquired attic cholesteatoma. We hypothesize that minimal invasive, mucosal sparing operation techniques have beneficial effects on the outcome in terms of recurrence. STUDY DESIGN: Retrospective study. SETTING: Tertiary referral center. PARTICIPANTS: A total of 110 patients presenting with primary acquired attic cholesteatoma were enrolled in the study. Patients undergoing revision surgery or a canal wall down procedure, as well as patients with residual disease were excluded from the study. MAIN OUTCOME MEASURES: During follow-up recurrence was assessed and classified into normal, self-cleaning retraction pockets, or recurrent cholesteatoma requiring revision surgery. RESULTS: We observed during follow-up statistically significant decrease (p = 0.036) in the occurrence of retraction pockets and recurrence in patients operated by the transcanal endoscopic approach (n = 55, 11% re-retraction, 9% recurrence) compared with those who underwent a canal wall up procedure (n = 55, 16% re-retraction, 22% recurrence). However, the multivariate model did not demonstrate statistically significant predictors regarding the outcome. Moreover, the preservation or direct reconstruction of the ossicular chain had a beneficial effect on the outcome. We observed 11% re-retraction and 9% recurrence in cases with preserved or reconstructed ossicular chain versus 18% re-retraction and 24% recurrence (p = 0.011) in cases of nonpreserved or non-reconstructed ossicular chain. A score was established according to the intraoperative mucosal damage and correlated to the occurrence of recurrence (p = 0.02). The risk of recurrence increased by 23.6% (95% confidence interval: 3.22-48.1) with each additional mucosal damage site. CONCLUSION: Transcanal endoscopic approaches that preserve the mastoid may play an important role in preventing recurrence and underscores the importance of the mucosa and mastoid air cells on middle ear homeostasis. PMID- 29342050 TI - Intraoperative Cochlear Implant Device Testing Utilizing an Automated Remote System: A Prospective Pilot Study. AB - INTRODUCTION: Intraoperative cochlear implant device testing provides valuable information regarding device integrity, electrode position, and may assist with determining initial stimulation settings. Manual intraoperative device testing during cochlear implantation requires the time and expertise of a trained audiologist. The purpose of the current study is to investigate the feasibility of using automated remote intraoperative cochlear implant reverse telemetry testing as an alternative to standard testing. METHODS: Prospective pilot study evaluating intraoperative remote automated impedance and Automatic Neural Response Telemetry (AutoNRT) testing in 34 consecutive cochlear implant surgeries using the Intraoperative Remote Assistant (Cochlear Nucleus CR120). In all cases, remote intraoperative device testing was performed by trained operating room staff. A comparison was made to the "gold standard" of manual testing by an experienced cochlear implant audiologist. Electrode position and absence of tip fold-over was confirmed using plain film x-ray. RESULTS: Automated remote reverse telemetry testing was successfully completed in all patients. Intraoperative x ray demonstrated normal electrode position without tip fold-over. Average impedance values were significantly higher using standard testing versus CR120 remote testing (standard mean 10.7 kOmega, SD 1.2 vs. CR120 mean 7.5 kOmega, SD 0.7, p < 0.001). There was strong agreement between standard manual testing and remote automated testing with regard to the presence of open or short circuits along the array. There were, however, two cases in which standard testing identified an open circuit, when CR120 testing showed the circuit to be closed. Neural responses were successfully obtained in all patients using both systems. There was no difference in basal electrode responses (standard mean 195.0 MUV, SD 14.10 vs. CR120 194.5 MUV, SD 14.23; p = 0.7814); however, more favorable (lower MUV amplitude) results were obtained with the remote automated system in the apical 10 electrodes (standard 185.4 MUV, SD 11.69 vs. CR120 177.0 MUV, SD 11.57; p value < 0.001). CONCLUSION: These preliminary data demonstrate that intraoperative cochlear implant device testing using a remote automated system is feasible. This system may be useful for cochlear implant programs with limited audiology support or for programs looking to streamline intraoperative device testing protocols. Future studies with larger patient enrollment are required to validate these promising, but preliminary, findings. PMID- 29342052 TI - Preauricular Approach for Cholesteatoma Resection After Surgical Overclosure of the External Auditory Canal and Cochlear Implantation. AB - : Chronic suppurative otitis media can have long-term effects on hearing if not managed effectively. When combined with cholesteatoma the condition may require creation of an open mastoid cavity. Recurrence of cholesteatoma is a concern when cochlear implantation is performed with overclosure of the external auditory meatus. A 61-year-old female with recurrent cholesteatoma in this setting was treated using a preauricular approach to provide adequate visualization while preventing the need to remove the implant or risking injury to the internal components. This technique would be useful in similar patients to prevent morbidity from removal and reinsertion of a cochlear implant. PMID- 29342051 TI - Does Hospital Volume Affect Outcomes in Patients Undergoing Vestibular Schwannoma Surgery? AB - OBJECTIVE: To determine the effect of hospital surgical case volume on the outcomes of vestibular schwannoma surgery. STUDY DESIGN: Retrospective case review. SETTING: University HealthSystem Consortium member hospitals (includes nearly every US academic medical center). PATIENTS: Three thousand six hundred ninety-seven patients who underwent vestibular schwannoma resection over a 3-year timespan (2012-2015) grouped by race, age, comorbidities, payer, and sex. INTERVENTION: Surgical resection of vestibular schwannoma. MAIN OUTCOME MEASURES: Morbidity and mortality following vestibular schwannoma excision are compared by hospital volume (low, medium, and high) including deciles. RESULTS: There was significantly longer length of stay (p <= 0.005) among groups with low-volume hospitals followed by medium-volume hospitals and high-volume hospitals. Low volume hospitals had a significantly higher rate of complications including stroke, aspiration, and respiratory failure (p <= 0.0175). Patient characteristics of age, sex, sex, and baseline comorbidities were similar between hospital groups. However, patients at high-volume hospitals were more likely to be Caucasian (83.1%, p = 0.0001) and have private insurance (76.7%, p < 0.0001). There was a strong negative correlation between complication rates and hospital volume (r = -0.8164, p = 0.0040). CONCLUSION: The volume of vestibular schwannoma surgeries performed at a hospital impacts length of stay and rates of postoperative complications. Demographics among hospital groups were similar though high-volume hospitals had significantly more patients who were privately insured and Caucasian. PMID- 29342053 TI - Gradual Symmetric Progression of DFNA34 Hearing Loss Caused by an NLRP3 Mutation and Cochlear Autoinflammation. AB - OBJECTIVE: To characterize the audiometric phenotype of autosomal-dominant DFNA34 hearing loss (HL) caused by a missense substitution in the NLRP3 gene. NLRP3 encodes a critical component of the NLRP3 inflammasome that is activated in innate immune responses. STUDY DESIGN: This study was conducted under protocol 01 DC-0229 approved by the NIH Combined Neurosciences IRB. We performed medical and developmental history interviews and physical and audiological examinations of affected individuals with DFNA34 HL caused by the p.Arg918Gln mutation of NLRP3. We retrospectively reviewed audiological reports, when available, from other health care centers. SETTING: Federal biomedical research facility. SUBJECTS: Eleven members of a North American family segregating p.Arg918Gln. MAIN OUTCOME MEASURES: Pure-tone thresholds, rates of pure-tone threshold progression, and speech discrimination scores. RESULTS: Eight subjects had bilateral sensorineural HL with an onset in the late 2nd to 4th decade of life. Slowly progressive HL initially primarily affected high frequencies. Low and middle frequencies were affected with advancing age, resulting in moderate HL with a downsloping audiometric configuration. The average annual threshold deterioration was 0.9 to 1.5 dB/yr. Speech recognition scores ranging from 60 to 100% were consistent with cochlear, but not retrocochlear, etiology. Three subjects (16, 22, and 32 yr old) had normal hearing thresholds. CONCLUSION: DFNA34 HL has an onset during early adulthood and progresses approximately 1.2 dB/yr. PMID- 29342055 TI - Benefit of Preoperative Temporal Bone CT for Atraumatic Cochlear Implantation. AB - HYPOTHESIS: Evaluate the benefit of preoperative surgical planning using computed tomography (CT) for atraumatic cochlear implantation. BACKGROUND: The surgical technique has a direct impact on hearing and structure preservation. Much interest has been given to depth of electrode insertion. We focused on electrode diameter depending on exposure of round window membrane (RWM) as calculated on preoperative CT. METHODS: Measurements were calculated radiologically and anatomically on 10 temporal bones. Results were compared with CT scans of a control population. Thereafter, preoperative CT scan measurements were applied to seven additional temporal bones that underwent cochlear implantation with the insertion of two electrodes of different diameters (14 implantations) to validate radiological analysis. RESULTS: RWM size was 1.5 +/- 0.2 mm on CT and 1.2 +/- 0.2 mm during dissection; posterosuperior bony overhang of round window niche was 1.1 +/- 0.1 mm on CT and 1.3 +/- 0.2 mm during dissection. There was no statistically significant difference between radiological and anatomical measurements and between radiological measurements of cadaveric temporal bones and control population (p > 0.05 for both). Also, preoperative surgical planning was reliable in the seven temporal bones implanted with two electrode types (accuracy 93%, sensitivity 85.7%, specificity 100%) yielding no damage to intracochlear structures. CONCLUSION: Difficulties to access RWM could be predicted on preoperative CT of temporal bones and control population, which correlated well with anatomical dissections and surgical findings during cochlear implantation. According to CT planning, electrode insertion through RWM was feasible in most patients, with or without drilling posterosuperior bony overhang of round window niche. Promontory cochleostomy could be recommended when electrode apical diameter exceeded maximal RWM exposure. There was no case of intracochlear trauma on microdissections. PMID- 29342054 TI - Multicenter US Clinical Trial With an Electric-Acoustic Stimulation (EAS) System in Adults: Final Outcomes. AB - OBJECTIVE: To demonstrate the safety and effectiveness of the MED-EL Electric Acoustic Stimulation (EAS) System, for adults with residual low-frequency hearing and severe-to-profound hearing loss in the mid to high frequencies. STUDY DESIGN: Prospective, repeated measures. SETTING: Multicenter, hospital. PATIENTS: Seventy three subjects implanted with PULSAR or SONATA cochlear implants with FLEX electrode arrays. INTERVENTION: Subjects were fit postoperatively with an audio processor, combining electric stimulation and acoustic amplification. MAIN OUTCOME MEASURES: Unaided thresholds were measured preoperatively and at 3, 6, and 12 months postactivation. Speech perception was assessed at these intervals using City University of New York sentences in noise and consonant-nucleus consonant words in quiet. Subjective benefit was assessed at these intervals via the Abbreviated Profile of Hearing Aid Benefit and Hearing Device Satisfaction Scale questionnaires. RESULTS: Sixty-seven of 73 subjects (92%) completed outcome measures for all study intervals. Of those 67 subjects, 79% experienced less than a 30 dB HL low-frequency pure-tone average (250-1000 Hz) shift, and 97% were able to use the acoustic unit at 12 months postactivation. In the EAS condition, 94% of subjects performed similarly to or better than their preoperative performance on City University of New York sentences in noise at 12 months postactivation, with 85% demonstrating improvement. Ninety-seven percent of subjects performed similarly or better on consonant-nucleus-consonant words in quiet, with 84% demonstrating improvement. CONCLUSION: The MED-EL EAS System is a safe and effective treatment option for adults with normal hearing to moderate sensorineural hearing loss in the low frequencies and severe-to-profound sensorineural hearing loss in the high frequencies who do not benefit from traditional amplification. PMID- 29342056 TI - "Product" Versus "Process" Measures in Assessing Speech Recognition Outcomes in Adults With Cochlear Implants. AB - HYPOTHESES: 1) When controlling for age in postlingual adult cochlear implant (CI) users, information-processing functions, as assessed using "process" measures of working memory capacity, inhibitory control, information-processing speed, and fluid reasoning, will predict traditional "product" outcome measures of speech recognition. 2) Demographic/audiologic factors, particularly duration of deafness, duration of CI use, degree of residual hearing, and socioeconomic status, will impact performance on underlying information-processing functions, as assessed using process measures. BACKGROUND: Clinicians and researchers rely heavily on endpoint product measures of accuracy in speech recognition to gauge patient outcomes postoperatively. However, these measures are primarily descriptive and were not designed to assess the underlying core information processing operations that are used during speech recognition. In contrast, process measures reflect the integrity of elementary core subprocesses that are operative during behavioral tests using complex speech signals. METHODS: Forty two experienced adult CI users were tested using three product measures of speech recognition, along with four process measures of working memory capacity, inhibitory control, speed of lexical/phonological access, and nonverbal fluid reasoning. Demographic and audiologic factors were also assessed. RESULTS: Scores on product measures were associated with core process measures of speed of lexical/phonological access and nonverbal fluid reasoning. After controlling for participant age, demographic and audiologic factors did not correlate with process measure scores. CONCLUSION: Findings provide support for the important foundational roles of information processing operations in speech recognition outcomes of postlingually deaf patients who have received CIs. PMID- 29342058 TI - MRI Evaluation of Repaired Versus Unrepaired Interportal Capsulotomy in Simultaneous Bilateral Hip Arthroscopy: A Double-Blind, Randomized Controlled Trial. AB - BACKGROUND: Techniques used in hip arthroscopy continue to evolve, and controversy surrounds the need for capsular repair following this surgical intervention. The purpose of this study was to evaluate the magnetic resonance imaging (MRI) appearance of the hip capsule in patients with femoroacetabular impingement (FAI) who underwent simultaneous bilateral hip arthroscopy through an interportal capsulotomy with each hip randomized to undergo capsular repair or not undergo such a repair. METHODS: This double-blind, randomized controlled trial included 15 patients (30 hips), with a mean age of 29.2 years, who underwent simultaneous bilateral hip arthroscopy utilizing a small (<3-cm) interportal capsulotomy for the treatment of FAI. The first hip treated in each patient was intraoperatively randomized to undergo capsular repair or no capsular repair. The contralateral hip then received the opposite treatment. MRI was performed at 6 and 24 weeks postoperatively, and the scans were analyzed by 2 musculoskeletal radiologists. The patients and the radiologists were blinded to the treatment performed on each hip. Capsular dimensions were measured at the level of the healing capsulotomy site and, for hips with a persistent defect, at locations both proximal and distal to the defect. These values were then analyzed at both time points to assess the rate and extent of capsular healing. RESULTS: At 6 weeks postoperatively, a continuous hip capsule (with no apparent capsulotomy defect) was observed in 8 hips treated with capsular repair and 3 hips without such a repair. Of the 19 hips with a discontinuous capsule at 6 weeks, 17 were available for follow-up at 24 weeks postoperatively; all 17 demonstrated progression to healing, with a contiguous appearance without defects and no difference in capsular dimensions between treatment cohorts. CONCLUSIONS: Arthroscopic repair of a small interportal hip capsulotomy site yields an insignificant increase in the percentage of continuous hip capsules seen on MRI at 6 weeks postoperatively compared with no repair. Repaired and unrepaired capsulotomy sites progressed to healing with a contiguous appearance on MRI by 24 weeks postoperatively. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342057 TI - Audiologic Natural History of Small Volume Cochleovestibular Schwannomas in Neurofibromatosis Type 2. AB - OBJECTIVE: To characterize the audiometric natural progression in patient-ears with small volume (<1,000 mm), treatment-naive cochleovestibular schwannomas (CVSs) in Neurofibromatosis Type 2 (NF2). STUDY DESIGN: Prospective, longitudinal cohort study. SETTING: Quaternary medical research institute. PATIENTS: One hundred eleven ears in 71 NF2 patients with small, treatment-naive CVSs observed from July 2006 to July 2016. INTERVENTION: Serial audiometric testing, including pure tone audiometry, speech audiometry, and magnetic resonance imaging (MRI). OUTCOME MEASURES: Four-frequency pure tone average (4f-PTA) of 0.5, 1, 2, and 4 kHz and word recognition score (WRS) were recorded. Their changes were compared with MRI changes in CVS volume over time. Times to significant hearing loss (10 dB loss in 4f-PTA) and WRS based on 95% critical difference were measured. RESULTS: Linear regression analysis showed a significant correlation with baseline hearing level (4f-PTA) and internal auditory canal (IAC) tumor volume to annual hearing decrease rate (AHDR) (p = 0.003, p = 0.0004). Hearing level at baseline and tumor volume correlate with AHDR while tumor volume growth rate does not. Two-way analysis of variance found significant differences in AHDR, risk of significant hearing loss, and risk of critical difference in WRS based on baseline hearing level (abnormal or normal) and IAC tumor volume (greater or less than 200 mm). CONCLUSION: Subjects with normal baseline hearing and small IAC tumor component had a low AHDR and low risk of significant hearing loss and may warrant conservative management while the presence of baseline hearing loss and large IAC volume resulted in higher ADHR and greater risk for further hearing loss and may benefit from early treatment interventions. PMID- 29342059 TI - Patients Living Alone Can Be Safely Discharged Directly Home After Total Joint Arthroplasty: A Prospective Cohort Study. AB - BACKGROUND: Despite the expense and potential hazards of inpatient rehabilitation, there is a prevailing belief that patients living alone cannot be safely discharged directly home after total joint arthroplasty. The purpose of this study was to assess the safety and efficacy of direct home discharge for patients living alone during convalescence after primary total joint arthroplasty. METHODS: We prospectively studied 910 consecutive patients undergoing primary, unilateral total hip arthroplasty or total knee arthroplasty over an 8-month period. Patients discharged directly home who were living alone for the first 2 weeks after the surgical procedure were identified as the investigational group and those discharged to home and living with others constituted the control group. The primary outcomes were 90-day complications and unplanned clinical events, including readmissions, emergency department or urgent care visits, and office visits. Functional outcomes, patient satisfaction, pain relief, and return to daily function were also assessed. RESULTS: During the study period, 874 patients (96%) were discharged directly home and only 36 patients (4%) were discharged to a rehabilitation facility. Of those discharged home, 769 patients were included in the final analysis, including 138 patients living alone and 631 patients living with others, and 105 patients were excluded as they opted not to participate. Patients living alone more commonly stayed an additional night in the hospital and utilized more home health services. There was no increase in complications or unplanned clinical events for patients living alone compared with those living with others. Further, no significant differences in functional outcomes or pain relief were detected, and satisfaction scores were equivalent after 90 days. CONCLUSIONS: Patients living alone had a safe and manageable recovery when discharged directly home after total joint arthroplasty. Extending the initial hospitalization and providing home health services on a selected basis may be a more cost-effective approach than routine discharge to an inpatient rehabilitation facility. LEVEL OF EVIDENCE: Therapeutic Level II. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342060 TI - Creep and Wear in Vitamin E-Infused Highly Cross-Linked Polyethylene Cups for Total Hip Arthroplasty: A Prospective Randomized Controlled Trial. AB - BACKGROUND: Aseptic loosening, the most common indication for revision surgery in total hip arthroplasty, can result from osteolysis caused by polyethylene (PE) wear particles. PE wear is increased by age-related oxidation of PE and free radicals emerging during irradiation cross-linking. Diffusion of vitamin E into PE stabilizes free radicals to maintain the biomechanical properties of PE. The purpose of this study was to determine whether vitamin E-infused highly cross linked PE cups could reduce wear rates. METHODS: We performed a prospective randomized controlled trial, in which 62 patients were allocated to 2 groups: a study group that received a vitamin E-infused highly cross-linked PE (HXLPE/VitE) cup and a control group that received an ultra-high molecular weight PE (UHMWPE) cup. Using radiostereometric analysis, we measured the penetration of the femoral head into the cup 7 days after surgery (baseline) and then again at 6 months and at 1, 2, and 3 years later. RESULTS: Baseline variables did not differ significantly between the groups. At 1, 2, and 3 years after surgery, the HXLPE/VitE cup showed significantly less cumulative penetration (creep and wear) than the UHMWPE cup (p = 0.004, p < 0.0001, and p < 0.0001, respectively). The cumulative penetration after 3 years was 0.200 mm for the HXLPE/VitE cup versus 0.317 mm for the UHMWPE cup (p < 0.0001). From 1 to 3 years after surgery, after creep had stabilized and further penetration was mainly due to wear, the mean penetration increased only 0.04 mm in the HXLPE/VitE cup and 0.116 mm in the UHMWPE cup. CONCLUSIONS: Our results confirm that wear rates over the first 3 years following surgery were lower in HXLPE/VitE cups than in UHMWPE cups. This suggests that HXLPE/VitE cups may prevent osteolysis, implant loosening, and eventually revision surgery. Long-term follow-up data continue to be collected to confirm these findings. LEVEL OF EVIDENCE: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342061 TI - The Effect of Alternative Bearing Surfaces on the Risk of Revision Due to Infection in Minimally Stabilized Total Knee Replacement: An Analysis of 326,603 Prostheses from the Australian Orthopaedic Association National Joint Replacement Registry. AB - BACKGROUND: The effect of alternative bearing materials on the risk of revision due to infection after total knee replacement remains uncertain. By reducing the immunomodulating polyethylene wear-particle burden and with different substrate bacterial adhesion properties, Oxinium oxidized zirconium and cross-linked polyethylene (XLPE) could alter infection risk. The purpose of the current study was to analyze the risk of revision for infection in 3 comparisons of bearing combinations. METHODS: To evaluate the risk of revision for infection with XLPE, cobalt-chromium (CoCr) on XLPE was compared with CoCr on non-cross-linked polyethylene (NXLPE). To evaluate Oxinium, Oxinium-NXLPE was compared with CoCr NXLPE, and to evaluate the possibility of an additional beneficial effect of Oxinium on XLPE, Oxinium-XLPE was compared with CoCr-XLPE. The cumulative percent revision (CPR) and hazard ratio (HR) for revision for infection in primary total knee replacement for osteoarthritis were determined from registry data from September 1, 1999, to December 31, 2015. Revisions within 6 months following the primary surgery were censored from the analysis, while procedures with posterior stabilized or fully stabilized total knee replacements as well as prostheses with a known higher risk of revision were excluded. Analyses were stratified by age, sex, and fixation type. RESULTS: Of the 326,603 included primary total knee replacements, 1,511 (0.46%) were revised for infection. The risk of revision for infection was lower for CoCr-XLPE compared with CoCr-NXLPE (HR = 0.74; 95% confidence interval [CI] = 0.65 to 0.84; p < 0.001). This effect was apparent for both male and female patients overall, all fixation types, antibiotic cement use, those <65 years of age, and male patients >=65 years of age. However, for female patients >=65 years of age, there was no difference. Overall, Oxinium-NXLPE had the same revision risk as CoCr-NXLPE regardless of fixation; however, for cemented fixation, subanalysis showed a lower risk for Oxinium-NXLPE compared with CoCr-NXLPE (HR = 0.69; 95% CI = 0.51 to 0.94; p = 0.018). Oxinium-XLPE had the same revision risk for infection as CoCr-XLPE overall, among male patients, and when cemented fixation had been used. CONCLUSIONS: In this registry analysis, CoCr-XLPE had a 26% lower risk of revision for infection than CoCr-NXLPE, suggesting a reduction of wear particle-induced immunomodulation with XLPE. Oxinium-XLPE had the same risk as CoCr-XLPE. Overall, Oxinium did not reduce the infection risk. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342062 TI - Potential Sex Bias Exists in Orthopaedic Basic Science and Translational Research. AB - BACKGROUND: Potential sex bias has been shown in general surgery basic science and translational research, with unequal representation of male and female specimens. Because basic science research forms the foundation for clinical studies on which patient care is based, it is important that this research equally consider both sexes. The purpose of this study was to determine if potential sex bias exists in the basic science and translational orthopaedic literature. METHODS: A systematic review was conducted of all articles published in 2014 in The Journal of Bone & Joint Surgery, Clinical Orthopaedics and Related Research, The Bone & Joint Journal, and the Journal of Orthopaedic Research (JOR). All original research articles utilizing animals, cells, or cadavers were included. The data abstracted included study type, sex of specimen studied, and presence of sex-based reporting of data. A second review was performed of all basic science articles published in JOR in 1994, 2004, and 2014 to compare sex bias trends across 3 decades. Distributions of variables were compared using the Fisher exact test, with significance defined as p < 0.05. RESULTS: Of 1,693 articles reviewed, 250 (15%) were included: 122 animal-based studies (49%), 71 cell-based studies (28%), and 57 human cadaver-based studies (23%). Overall, authors in 88 studies (35%) did not report the sex of animals, cells, or cadavers used. Of 162 studies in which the authors did report sex, 69 (43%) utilized male only, 40 (25%) utilized female only, and 53 (33%) utilized both sexes. Of those studies that used both sexes, authors in only 7 studies (13%) reported sex-based results. A subanalysis of JOR articles across 3 decades revealed a significant increase in studies specifying sex (p = 0.01) from 2004 to 2014. CONCLUSIONS: Potential sex bias exists in orthopaedic surgery basic science and translational research, with an overrepresentation of male specimens. CLINICAL RELEVANCE: Inequality in sex representation must be addressed as basic science and translational research creates the foundation for subsequent clinical research, which ultimately informs clinical care. PMID- 29342063 TI - Low Prevalence of Hip and Knee Arthritis in Active Marathon Runners. AB - BACKGROUND: Existing evidence on whether marathon running contributes to hip and knee arthritis is inconclusive. Our aim was to describe hip and knee health in active marathon runners, including the prevalence of pain, arthritis, and arthroplasty, and associated risk factors. METHODS: A hip and knee health survey was distributed internationally to marathon runners. Active marathoners who completed >=5 marathons and were currently running a minimum of 10 miles per week were included (n = 675). Questions assessed pain, personal and family history of arthritis, surgical history, running volume, personal record time, and current running status. Multivariable analyses identified risk factors for pain and arthritis. Arthritis prevalence in U.S. marathoners was compared with National Center for Health Statistics prevalence estimates for a matched group of the U.S. POPULATION: RESULTS: Marathoners (n = 675) with a mean age of 48 years (range, 18 to 79 years) ran a mean distance of 36 miles weekly (range, 10 to 150 miles weekly) over a mean time of 19 years (range, 3 to 60 years) and completed a mean of 76 marathons (range, 5 to 1,016 marathons). Hip or knee pain was reported by 47%, and arthritis was reported by 8.9% of marathoners. Arthritis prevalence was 8.8% for the subgroup of U.S. marathoners, significantly lower (p < 0.001) than the prevalence in the matched U.S. population (17.9%) and in subgroups stratified by age, sex, body mass index (BMI), and physical activity level (p < 0.001). Seven marathoners continued to run following hip or knee arthroplasty. Age and family and surgical history were independent risk factors for arthritis. There was no significant risk associated with running duration, intensity, mileage, or the number of marathons completed (p > 0.05). CONCLUSIONS: Age, family history, and surgical history independently predicted an increased risk for hip and knee arthritis in active marathoners, although there was no correlation with running history. In our cohort, the arthritis rate of active marathoners was below that of the general U.S. POPULATION: Longitudinal follow-up is needed to determine the effects of marathon running on developing future hip and knee arthritis. LEVEL OF EVIDENCE: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342064 TI - Minimally Manipulated Bone Marrow Concentrate Compared with Microfracture Treatment of Full-Thickness Chondral Defects: A One-Year Study in an Equine Model. AB - BACKGROUND: Microfracture is commonly performed for cartilage repair but usually results in fibrocartilage. Microfracture augmented by autologous bone marrow concentrate (BMC) was previously shown to yield structurally superior cartilage repairs in an equine model compared with microfracture alone. The current study was performed to test the hypothesis that autologous BMC without concomitant microfracture improves cartilage repair compared with microfracture alone. METHODS: Autologous sternal bone marrow aspirate (BMA) was concentrated using a commercial system. Cells from BMC were evaluated for chondrogenic potential in vitro and in vivo. Bilateral full-thickness chondral defects (15-mm diameter) were created on the midlateral trochlear ridge in 8 horses. Paired defects were randomly assigned to treatment with BMC without concomitant microfracture, or to microfracture alone. The repairs were evaluated at 1 year by in vitro assessment, arthroscopy, morphological magnetic resonance imaging (MRI), quantitative T2 weighted and ultrashort echo time enhanced T2* (UTE-T2*) MRI mapping, and histological assessment. RESULTS: Culture-expanded but not freshly isolated cells from BMA and BMC underwent cartilage differentiation in vitro. In vivo, cartilage repairs in both groups were fibrous to fibrocartilaginous at 1 year of follow-up, with no differences observed between BMC and microfracture by arthroscopy, T2 and UTE-T2* MRI values, and histological assessment (p > 0.05). Morphological MRI showed subchondral bone changes not observed by arthroscopy and improved overall outcomes for the BMC repairs (p = 0.03). Differences in repair tissue UTE-T2* texture features were observed between the treatment groups (p < 0.05). CONCLUSIONS: When BMC was applied directly to critical-sized, full-thickness chondral defects in an equine model, the cartilage repair results were similar to those of microfracture. Our data suggest that, given the few mesenchymal stem cells in minimally manipulated BMC, other mechanisms such as paracrine, anti inflammatory, or immunomodulatory effects may have been responsible for tissue regeneration in a previous study in which BMC was applied to microfractured repairs. While our conclusions are limited by small numbers, the better MRI outcomes for the BMC repairs may have been related to reduced surgical trauma to the subchondral bone. CLINICAL RELEVANCE: MRI provides important information on chondral defect subsurface repair organization and subchondral bone structure that is not well assessed by arthroscopy. PMID- 29342065 TI - Diagnosis of Periprosthetic Joint Infection: The Potential of Next-Generation Sequencing. AB - BACKGROUND: Next-generation sequencing is a well-established technique for sequencing of DNA and has recently gained attention in many fields of medicine. Our aim was to evaluate the accuracy of next-generation sequencing in identifying the causative organism(s) in patients with periprosthetic joint infection. METHODS: In this prospective study, samples were collected from 65 revision arthroplasties (39 knees and 26 hips) and 17 primary arthroplasties (9 hips and 8 knees). Synovial fluid, deep tissue, and swabs were obtained at the time of the surgical procedure and were shipped to the laboratory for next-generation sequencing. Deep-tissue specimens were also sent to the institutional laboratory for culture. Sensitivity and specificity were calculated for next-generation sequencing, using the Musculoskeletal Infection Society (MSIS) definition of periprosthetic joint infection as the standard. RESULTS: In 28 revisions, the cases were considered to be infected; cultures were positive in 17 cases (60.7% [95% confidence interval (CI), 40.6% to 78.5%]), and next-generation sequencing was positive in 25 cases (89.3% [95% CI, 71.8% to 97.7%]), with concordance between next-generation sequencing and culture in 15 cases. Among the 11 cases of culture-negative periprosthetic joint infection, next-generation sequencing was able to identify an organism in 9 cases (81.8% [95% CI, 48.2% to 97.7%]). Next generation sequencing identified microbes in 9 (25.0% [95% CI, 12.1% to 42.2%]) of 36 aseptic revisions with negative cultures and in 6 (35.3% [95% CI, 14.2% to 61.7%]) of 17 primary total joint arthroplasties. Next-generation sequencing detected several organisms in most positive samples. However, in the majority of patients who were infected, 1 or 2 organisms were dominant. CONCLUSIONS: Next generation sequencing may be a useful adjunct in identification of the causative organism(s) in culture-negative periprosthetic joint infection. Our findings suggest that some cases of monomicrobial periprosthetic joint infection may have additional organisms that escape detection when culture is used. Further study is required to determine the clinical implications of isolated organisms in samples from patients who are not thought to be infected. LEVEL OF EVIDENCE: Diagnostic Level I. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342066 TI - Resident Participation in Fixation of Intertrochanteric Hip Fractures: Analysis of the NSQIP Database. AB - BACKGROUND: Future generations of orthopaedic surgeons must continue to be trained in the surgical management of hip fractures. This study assesses the effect of resident participation on outcomes for the treatment of intertrochanteric hip fractures. METHODS: The National Surgical Quality Improvement Program (NSQIP) database (2010 to 2013) was queried for intertrochanteric hip fractures (International Classification of Diseases, 9th Revision, Clinical Modification [ICD-9-CM] code 820.21) treated with either extramedullary (Current Procedural Terminology [CPT] code 27244) or intramedullary (CPT code 27245) fixation. Demographic variables, including resident participation, as well as primary (death and serious morbidity) and secondary outcome variables were extracted for analysis. Univariate, propensity score-matched, and multivariate logistic regression analyses were performed to evaluate outcome variables. RESULTS: Data on resident participation were available for 1,764 cases (21.0%). Univariate analyses for all intertrochanteric hip fractures demonstrated no significant difference in 30-day mortality (6.3% versus 7.8%; p = 0.264) or serious morbidity (44.9% versus 43.2%; p = 0.506) between the groups with and without resident participation. Multivariate and propensity score-matched analyses gave similar results. Resident involvement was associated with prolonged operating-room time, length of stay, and time to discharge when a prolonged case was defined as one above the 90th percentile for time parameters. CONCLUSIONS: Resident participation was not associated with an increase in morbidity or mortality but was associated with an increase in time related secondary outcome measures. While attending surgeon supervision is necessary, residents can and should be involved in the care of these patients without concern that resident involvement negatively impacts perioperative morbidity and mortality. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence. PMID- 29342067 TI - There Is No Column: A New Classification for Acetabular Fractures. AB - BACKGROUND: The surgical treatment of acetabular fractures relies on the understanding of fracture architecture and their classification. The Judet and Letournel classification has been the cornerstone in understanding and treating acetabular fractures. Recently, there has been growing evidence of discrepancies and incompleteness in the Judet and Letournel classification, adversely affecting its clinical use. This study describes a novel comprehensive classification system that will direct surgical approach and fixation methods. METHODS: A retrospective study of patients with acetabular fractures treated at a level-I trauma center also serving as a referral center for acetabular fractures was performed. Fractures were classified according to both the novel and Judet and Letournel classification systems. The novel classification developed integrates the displacement vector (posterior, superomedial, or combined) and the fractured anatomic structures (anteroposterior wall, pelvic brim, iliac wing, quadrilateral plate, and ischium). Furthermore, postoperative malreduction was evaluated on the basis of intra-articular gap measurements in either anteroposterior or Judet oblique views. RESULTS: The study included 229 patients with acetabular fractures treated between 2007 and 2016. The mean patient age (and standard deviation) was 46.7 +/- 21.75 years, and 172 patients (75.1%) were surgically treated. According to the novel classification system, the posterior displacement vector group included 60 patients, the superomedial displacement vector group included 130 patients, the combined displacement vector group included 36 patients, and 3 patients were unclassified by the new system. Forty-six patients (20.1%) could not be classified by the Judet and Letournel classification. Pelvic-brim fracture patterns were described as along the pelvic brim, across the pelvic brim, or comminuted. The quadrilateral plate primary fracture line was shown to be perpendicular to the pelvic brim. The selection of surgical approach and fixation methods depends on the fracture type. CONCLUSIONS: This study presents a novel classification system for acetabular fractures. It offers a complete classification system, encompassing nearly all fracture patterns. As the selection of surgical approach and fixation methods depends on fracture classification and understanding, the novel classification system can aid the surgeon with decision-making. PMID- 29342068 TI - What's New in Adult Reconstructive Knee Surgery. PMID- 29342069 TI - Orthopaedics in Haiti. PMID- 29342070 TI - An Evaluation of Industry Relationships Among Contributors to AAOS Clinical Practice Guidelines and Appropriate Use Criteria. AB - BACKGROUND: A long-standing relationship between orthopaedic surgeons and industry has made financial conflicts of interest a concerning issue. Research supports that financial conflicts of interest can influence both medical research and clinical practice. Financial conflicts of interest may also influence clinical practice guideline recommendations and their corresponding appropriate use criteria. Because of the influential nature of these guidelines, it is imperative that care be taken to minimize bias during guideline development. METHODS: We retrieved clinical practice guidelines and their corresponding appropriate use criteria from the American Academy of Orthopaedic Surgery that were published or revised between 2013 and 2016. We extracted industry payments received by physicians using the Centers for Medicare & Medicaid Services Open Payments database. We then evaluated the value and types of these payments. We also used these data to determine whether disclosure statements were accurate and whether guideline development was in adherence with the Institute of Medicine's (IOM's) standards. RESULTS: Of the 106 physicians that were evaluated, 85 (80%) received at least 1 industry payment, 56 (53%) accepted >$1,000, and 35 (33%) accepted >$10,000. Financial payments amounted to a mean of $93,512 per physician. Total reimbursement for the 85 clinical practice guideline and appropriate use criteria contributors was $9,912,309. We found that disclosure statements disagreed with the Open Payments data and that the IOM standards were not completely enforced. CONCLUSIONS: Clinical practice guideline and appropriate use criteria contributors received substantial payments from industry, many disclosure statements were inaccurate, and the IOM standards were not completely met. CLINICAL RELEVANCE: Clinical practice guidelines and appropriate use criteria are critical for practicing evidence-based medicine. If financial conflicts of interest are present during their development, it is possible that patient care may be compromised. PMID- 29342071 TI - Why We Should Care About the Sex of Specimens in Cadaveric, Animal, and Cell Based Orthopaedic Research: Commentary on an article by Jessica Bryant, MD, et al.: "Potential Sex Bias Exists in Orthopaedic Basic Science and Translational Research". PMID- 29342072 TI - Decreased Osteoarthritis Risk in Experienced Marathon Runners: Commentary on an article by Danielle Y. Ponzio, MD, et al.: "Low Prevalence of Hip and Knee Arthritis in Active Marathon Runners". PMID- 29342073 TI - Structure Elucidation of Unknown Metabolites in Metabolomics by Combined NMR and MS/MS Prediction. AB - We introduce a cheminformatics approach that combines highly selective and orthogonal structure elucidation parameters; accurate mass, MS/MS (MS2), and NMR into a single analysis platform to accurately identify unknown metabolites in untargeted studies. The approach starts with an unknown LC-MS feature, and then combines the experimental MS/MS and NMR information of the unknown to effectively filter out the false positive candidate structures based on their predicted MS/MS and NMR spectra. We demonstrate the approach on a model mixture, and then we identify an uncatalogued secondary metabolite in Arabidopsis thaliana. The NMR/MS2 approach is well suited to the discovery of new metabolites in plant extracts, microbes, soils, dissolved organic matter, food extracts, biofuels, and biomedical samples, facilitating the identification of metabolites that are not present in experimental NMR and MS metabolomics databases. PMID- 29342074 TI - Characterization of an Additive Manufactured TiAl Alloy-Steel Joint Produced by Electron Beam Welding. AB - In this work, the characterization of the assembly of a steel shaft into a gamma TiAl part for turbocharger application, obtained using Electron Beam Welding (EBW) technology with a Ni-based filler, was carried out. The Ti-48Al-2Nb-0.7Cr 0.3Si (at %) alloy part was produced by Electron Beam Melting (EBM). This additive manufacturing technology allows the production of a lightweight part with complex shapes. The replacement of Nickel-based superalloys with TiAl alloys in turbocharger automotive applications will lead to an improvement of the engine performance and a substantial reduction in fuel consumption and emission. The welding process allows a promising joint to be obtained, not affecting the TiAl microstructure. Nevertheless, it causes the formation of diffusive layers between the Ni-based filler and both steel and TiAl, with the latter side being characterized by a very complex microstructure, which was fully characterized in this paper by means of Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy, and nanoindentation. The diffusive interface has a thickness of about 6 um, and it is composed of several layers. Specifically, from the TiAl alloy side, we find a layer of Ti3Al followed by Al3NiTi2 and AlNi2Ti. Subsequently Ni becomes more predominant, with a first layer characterized by abundant carbide/boride precipitation, and a second layer characterized by Si enrichment. Then, the chemical composition of the Ni-based filler is gradually reached. PMID- 29342075 TI - Enrichment and Identification of the Most Abundant Zinc Binding Proteins in Developing Barley Grains by Zinc-IMAC Capture and Nano LC-MS/MS. AB - Background: Zinc accumulates in the embryo, aleurone, and subaleurone layers at different amounts in cereal grains. Our hypothesis is that zinc could be stored bound, not only to low MW metabolites/proteins, but also to high MW proteins as well. Methods: In order to identify the most abundant zinc binding proteins in different grain tissues, we microdissected barley grains into (1) seed coats; (2) aleurone/subaleurone; (3) embryo; and (4) endosperm. Initial screening for putative zinc binding proteins from the different tissue types was performed by fractionating proteins according to solubility (Osborne fractionation), and resolving those via Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis (SDS-PAGE) followed by polyvinylidene fluoride (PVDF) membrane blotting and dithizone staining. Selected protein fractions were subjected to Zn2+-immobilized metal ion affinity chromatography, and the captured proteins were identified using nanoscale liquid chromatography coupled to tandem mass spectrometry (nanoLC MS/MS). Results: In the endosperm, the most abundant zinc binding proteins were the storage protein B-hordeins, gamma-, and D-hordeins, while in the embryo, 7S globulins storage proteins exhibited zinc binding. In the aleurone/subaleurone, zinc affinity captured proteins were late abundant embryogenesis proteins, dehydrins, many isoforms of non-specific lipid transfer proteins, and alpha amylase trypsin inhibitor. Conclusions: We have shown evidence that abundant barley grain proteins have been captured by Zn-IMAC, and their zinc binding properties in relationship to the possibility of zinc storage is discussed. PMID- 29342076 TI - Neuromorphic Vibrotactile Stimulation of Fingertips for Encoding Object Stiffness in Telepresence Sensory Substitution and Augmentation Applications. AB - We present a tactile telepresence system for real-time transmission of information about object stiffness to the human fingertips. Experimental tests were performed across two laboratories (Italy and Ireland). In the Italian laboratory, a mechatronic sensing platform indented different rubber samples. Information about rubber stiffness was converted into on-off events using a neuronal spiking model and sent to a vibrotactile glove in the Irish laboratory. Participants discriminated the variation of the stiffness of stimuli according to a two-alternative forced choice protocol. Stiffness discrimination was based on the variation of the temporal pattern of spikes generated during the indentation of the rubber samples. The results suggest that vibrotactile stimulation can effectively simulate surface stiffness when using neuronal spiking models to trigger vibrations in the haptic interface. Specifically, fractional variations of stiffness down to 0.67 were significantly discriminated with the developed neuromorphic haptic interface. This is a performance comparable, though slightly worse, to the threshold obtained in a benchmark experiment evaluating the same set of stimuli naturally with the own hand. Our paper presents a bioinspired method for delivering sensory feedback about object properties to human skin based on contingency-mimetic neuronal models, and can be useful for the design of high performance haptic devices. PMID- 29342077 TI - Use of a New International Classification of Health Interventions for Capturing Information on Health Interventions Relevant to People with Disabilities. AB - Development of the World Health Organization's International Classification of Health Interventions (ICHI) is currently underway. Once finalised, ICHI will provide a standard basis for collecting, aggregating, analysing, and comparing data on health interventions across all sectors of the health system. In this paper, we introduce the classification, describing its underlying tri-axial structure, organisation and content. We then discuss the potential value of ICHI for capturing information on met and unmet need for health interventions relevant to people with a disability, with a particular focus on interventions to support functioning and health promotion interventions. Early experiences of use of the Swedish National Classification of Social Care Interventions and Activities, which is based closely on ICHI, illustrate the value of a standard classification to support practice and collect statistical data. Testing of the ICHI beta version in a wide range of countries and contexts is now needed so that improvements can be made before it is finalised. Input from those with an interest in the health of people with disabilities and health promotion more broadly is welcomed. PMID- 29342078 TI - Spin Absorption Effect at Ferromagnet/Ge Schottky-Tunnel Contacts. AB - We study the influence of the junction size in ferromagnet (FM)/semiconductor (SC) contacts on four-terminal nonlocal spin signals in SC-based lateral spin valve (LSV) structures. When we use FM/Ge Schottky-tunnel junctions with relatively low resistance-area products, the magnitude of the nonlocal spin signal depends clearly on the junction size, indicating the presence of the spin absorption effect at the spin-injector contact. The temperature-dependent spin signal can also be affected by the spin absorption effect. For SC spintronic applications with a low parasitic resistance, we should consider the influence of the spin absorption on the spin-transport signals in SC-based device structures. PMID- 29342079 TI - Selective Laser Melting Produced Ti-6Al-4V: Post-Process Heat Treatments to Achieve Superior Tensile Properties. AB - Current post-process heat treatments applied to selective laser melting produced Ti-6Al-4V do not achieve the same microstructure and therefore superior tensile behaviour of thermomechanical processed wrought Ti-6Al-4V. Due to the growing demand for selective laser melting produced parts in industry, research and development towards improved mechanical properties is ongoing. This study is aimed at developing post-process annealing strategies to improve tensile behaviour of selective laser melting produced Ti-6Al-4V parts. Optical and electron microscopy was used to study alpha grain morphology as a function of annealing temperature, hold time and cooling rate. Quasi-static uniaxial tensile tests were used to measure tensile behaviour of different annealed parts. It was found that elongated alpha'/alpha grains can be fragmented into equiaxial grains through applying a high temperature annealing strategy. It is shown that bi-modal microstructures achieve a superior tensile ductility to current heat treated selective laser melting produced Ti-6Al-4V samples. PMID- 29342080 TI - Comparisons of Different Models on Dynamic Recrystallization of Plate during Asymmetrical Shear Rolling. AB - Asymmetrical shear rolling with velocity asymmetry and geometry asymmetry is beneficial to enlarge deformation and refine grain size at the center of the thick plate compared to conventional symmetrical rolling. Dynamic recrystallization (DRX) plays a vital role in grain refinement during hot deformation. Finite element models (FEM) coupled with microstructure evolution models and cellular automata models (CA) are established to study the microstructure evolution of plate during asymmetrical shear rolling. The results show that a larger DRX fraction and a smaller average grain size can be obtained at the lower layer of the plate. The DRX fraction at the lower part increases with the ascending speed ratio, while that at upper part decreases. With the increase of the offset distance, the DRX fraction slightly decreases for the whole thickness of the plate. The differences in the DRX fraction and average grain size between the upper and lower surfaces increase with the ascending speed ratio; however, it varies little with the change of the speed ratio. Experiments are conducted and the CA models have a higher accuracy than FEM models as the grain morphology, DRX nuclei, and grain growth are taken into consideration in CA models, which are more similar to the actual DRX process during hot deformation. PMID- 29342081 TI - Age and Gender Differences in Psychological Distress among African Americans and Whites: Findings from the 2016 National Health Interview Survey. AB - Previous studies report a race and mental health paradox: Whites score higher on measures of major depression compared to African Americans, but the opposite is true for psychological distress (i.e., African Americans score higher on distress measures compared to Whites). Independently, race, age, and gender outcomes for psychological distress are well documented in the literature. However, there is relatively little research on how psychological distress interferes with the lives of African Americans and Whites at the intersection of their various race, age, and gender identities. This study uses data from the 2016 National Health Interview Survey to examine age and gender differences in psychological distress and how much psychological distress interferes with the lives of African Americans and Whites. Our study findings are contrary to the paradox such that young White women (M = 3.36, SD = 1.14) and middle-aged White men (M = 2.55, SD = 3.97) experienced higher psychological distress than all other race, age, and gender groups. Psychological distress interference was relatively high among the high distress groups, except for older African American men (M = 1.73, SD = 1.05) and young African American women (M = 1.93, SD = 0.95). Implications for studies that consider cultural experiences of psychological distress, and how it impacts different demographic groups are discussed. PMID- 29342082 TI - Lewis Pair Catalysts in the Polymerization of Lactide and Related Cyclic Esters. AB - Polyesters, especially poly(lactide) (PLA), are used widely as biodegradable and biocompatible materials, yet their controllable synthesis, especially the stereoselective synthesis of polyesters, is still a challenge. Recently some excellent Lewis pair catalysts for ring-opening polymerization (ROP) of lactide and related cyclic esters have emerged. This review article will highlight the key advances in the ROP catalyzed by Lewis pair compounds with the aim of encouraging the wider application of Lewis pair catalysts in the polymerization of lactide and related cyclic esters. PMID- 29342083 TI - Regulation of Mitochondrial Dynamics by Proteolytic Processing and Protein Turnover. AB - The mitochondrial network is a dynamic organization within eukaryotic cells that participates in a variety of essential cellular processes, such as adenosine triphosphate (ATP) synthesis, central metabolism, apoptosis and inflammation. The mitochondrial network is balanced between rates of fusion and fission that respond to pathophysiologic signals to coordinate appropriate mitochondrial processes. Mitochondrial fusion and fission are regulated by proteins that either reside in or translocate to the inner or outer mitochondrial membranes or are soluble in the inter-membrane space. Mitochondrial fission and fusion are performed by guanosine triphosphatases (GTPases) on the outer and inner mitochondrial membranes with the assistance of other mitochondrial proteins. Due to the essential nature of mitochondrial function for cellular homeostasis, regulation of mitochondrial dynamics is under strict control. Some of the mechanisms used to regulate the function of these proteins are post-translational proteolysis and/or turnover, and this review will discuss these mechanisms required for correct mitochondrial network organization. PMID- 29342085 TI - Development of a Region-Specific Physiologically Based Pharmacokinetic Brain Model to Assess Hippocampus and Frontal Cortex Pharmacokinetics. AB - Central nervous system drug discovery and development is hindered by the impermeable nature of the blood-brain barrier. Pharmacokinetic modeling can provide a novel approach to estimate CNS drug exposure; however, existing models do not predict temporal drug concentrations in distinct brain regions. A rat CNS physiologically based pharmacokinetic (PBPK) model was developed, incorporating brain compartments for the frontal cortex (FC), hippocampus (HC), "rest-of-brain" (ROB), and cerebrospinal fluid (CSF). Model predictions of FC and HC Cmax, tmax and AUC were within 2-fold of that reported for carbamazepine and phenytoin. The inclusion of a 30% coefficient of variation on regional brain tissue volumes, to assess the uncertainty of regional brain compartments volumes on predicted concentrations, resulted in a minimal level of sensitivity of model predictions. This model was subsequently extended to predict human brain morphine concentrations, and predicted a ROB Cmax of 21.7 +/- 6.41 ng/mL when compared to "better" (10.1 ng/mL) or "worse" (29.8 ng/mL) brain tissue regions with a FC Cmax of 62.12 +/- 17.32 ng/mL and a HC Cmax of 182.2 +/- 51.2 ng/mL. These results indicate that this simplified regional brain PBPK model is useful for forward prediction approaches in humans for estimating regional brain drug concentrations. PMID- 29342086 TI - Copy Number Variation in SOX6 Contributes to Chicken Muscle Development. AB - Copy number variations (CNVs), which cover many functional genes, are associated with complex diseases, phenotypic diversity and traits that are economically important to raising chickens. The sex-determining region Y-box 6 (Sox6) plays a key role in fast-twitch muscle fiber differentiation of zebrafish and mice, but it is still unknown whether SOX6 plays a role in chicken skeletal muscle development. We identified two copy number polymorphisms (CNPs) which were significantly related to different traits on the genome level in chickens by AccuCopy(r) and CNVplex(r) analyses. Notably, five white recessive rock (CN = 1, CN = 3) variant individuals and two Xinghua (CN = 3) variant individuals contain a CNP13 (chromosome5: 10,500,294-10,675,531) which overlaps with SOX6. There is a disordered region in SOX6 proteins 265-579 aa coded by a partial CNV overlapping region. A quantitative real-time polymerase chain reaction showed that the expression level of SOX6 mRNA was positively associated with CNV and highly expressed during the skeletal muscle cell differentiation in chickens. After the knockdown of the SOX6, the expression levels of IGFIR1, MYF6, SOX9, SHOX and CCND1 were significantly down-regulated. All of them directly linked to muscle development. These results suggest that the number of CNVs in the CNP13 is positively associated with the expression level of SOX6, which promotes the proliferation and differentiation of skeletal muscle cells by up-regulating the expression levels of the muscle-growth-related genes in chickens as in other animal species. PMID- 29342088 TI - Synthesis and Characterization of WO3/Graphene Nanocomposites for Enhanced Photocatalytic Activities by One-Step In-Situ Hydrothermal Reaction. AB - Tungsten trioxide (WO3) nanorods are synthesized on the surface of graphene (GR) sheets by using a one-step in-situ hydrothermal method employing sodium tungstate (Na2WO4.2H2O) and graphene oxide (GO) as precursors. The resulting WO3/GR nanocomposites are characterized by X-ray diffraction, Raman spectroscopy, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. The results confirm that the interface between WO3 nanorod and graphene contains chemical bonds. The enhanced optical absorption properties are measured by UV-vis diffuse reflectance spectra. The photocatalytic activity of the WO3/GR nanocomposites under visible light is evaluated by the photodegradation of methylene blue, where the degradation rate of WO3/GR nanocomposites is shown to be double that of pure WO3. This is attributed to the synergistic effect of graphene and the WO3 nanorod, which greatly enhances the photocatalytic performance of the prepared sample, reduces the recombination of the photogenerated electron-hole pairs and increases the visible light absorption efficiency. Finally, the photocatalytic mechanism of the WO3/GR nanocomposites is presented. The synthesis of the prepared sample is convenient, direct and environmentally friendly. The study reports a highly efficient composite photocatalyst for the degradation of contaminants that can be applied to cleaning up the environment. PMID- 29342087 TI - Sophisticated Fowl: The Complex Behaviour and Cognitive Skills of Chickens and Red Junglefowl. AB - The world's most numerous bird, the domestic chicken, and their wild ancestor, the red junglefowl, have long been used as model species for animal behaviour research. Recently, this research has advanced our understanding of the social behaviour, personality, and cognition of fowl, and demonstrated their sophisticated behaviour and cognitive skills. Here, we overview some of this research, starting with describing research investigating the well-developed senses of fowl, before presenting how socially and cognitively complex they can be. The realisation that domestic chickens, our most abundant production animal, are behaviourally and cognitively sophisticated should encourage an increase in general appraise and fascination towards them. In turn, this should inspire increased use of them as both research and hobby animals, as well as improvements in their unfortunately often poor welfare. PMID- 29342089 TI - Chitosan Gel to Treat Pressure Ulcers: A Clinical Pilot Study. AB - Chitosan is biopolymer with promising properties in wound healing. Chronic wounds represent a significant burden to both the patient and the medical system. Among chronic wounds, pressure ulcers are one of the most common types of complex wound. The efficacy and the tolerability of chitosan gel formulation, prepared into the hospital pharmacy, in the treatment of pressure ulcers of moderate severity were evaluated. The endpoint of this phase II study was the reduction of the area of the lesion by at least 20% after four weeks of treatment. Thus, 20 adult volunteers with pressure ulcers within predetermined parameters were involved in a 30 days study. Dressing change was performed twice a week at outpatient clinic upon chronic wounds management. In the 90% of patients involved in the study, the treatment was effective, with a reduction of the area of the lesion and wound healing progress. The study demonstrated the efficacy of the gel formulation for treatment of pressure ulcers, also providing a strong reduction of patient management costs. PMID- 29342090 TI - Development of Databases on Iodine in Foods and Dietary Supplements. AB - Iodine is an essential micronutrient required for normal growth and neurodevelopment; thus, an adequate intake of iodine is particularly important for pregnant and lactating women, and throughout childhood. Low levels of iodine in the soil and groundwater are common in many parts of the world, often leading to diets that are low in iodine. Widespread salt iodization has eradicated severe iodine deficiency, but mild-to-moderate deficiency is still prevalent even in many developed countries. To understand patterns of iodine intake and to develop strategies for improving intake, it is important to characterize all sources of dietary iodine, and national databases on the iodine content of major dietary contributors (including foods, beverages, water, salts, and supplements) provide a key information resource. This paper discusses the importance of well constructed databases on the iodine content of foods, beverages, and dietary supplements; the availability of iodine databases worldwide; and factors related to variability in iodine content that should be considered when developing such databases. We also describe current efforts in iodine database development in the United States, the use of iodine composition data to develop food fortification policies in New Zealand, and how iodine content databases might be used when considering the iodine intake and status of individuals and populations. PMID- 29342091 TI - DNA-Based Single-Molecule Electronics: From Concept to Function. AB - Beyond being the repository of genetic information, DNA is playing an increasingly important role as a building block for molecular electronics. Its inherent structural and molecular recognition properties render it a leading candidate for molecular electronics applications. The structural stability, diversity and programmability of DNA provide overwhelming freedom for the design and fabrication of molecular-scale devices. In the past two decades DNA has therefore attracted inordinate amounts of attention in molecular electronics. This review gives a brief survey of recent experimental progress in DNA-based single-molecule electronics with special focus on single-molecule conductance and I-V characteristics of individual DNA molecules. Existing challenges and exciting future opportunities are also discussed. PMID- 29342093 TI - Hydroxyl Ion Diffusion through Radicular Dentine When Calcium Hydroxide Is Used under Different Conditions. AB - Calcium hydroxide's anti-bacterial action relies on high pH. The aim here was to investigate hydroxyl ion diffusion through dentine under different conditions. Teeth were divided into control (n = 4) and four experimental groups (n = 10): Group 1-no medicament; Group 2-Calmix; Group 3-Calmix/Ledermix; Group 4-Calasept Plus/Ledermix; Group 5-Pulpdent/smear layer. Deep (inner dentine) and shallow (outer dentine) cavities were cut into each root. pH was measured in these cavities for 12 weeks. The inner and outer dentine pH in Group 2 was significantly higher than all groups. Inner dentine pH in Group 3 was slightly higher than that in Group 4 initially but subsequently comparable. After Day 2, Group 5 had significantly lower pH than Groups 3 and 4. The outer dentine pH in Group 3 started higher than that in Groups 4 and 5, but by Day 28 the difference was insignificant. The time for the inner dentine to reach maximum pH was one week for Group 2 and four weeks for Groups 3 and 4. The time for the outer dentine to reach maximum pH was eight weeks for all experimental groups. Mixing different Ca(OH)2 formulations with Ledermix gave similar hydroxyl ion release but pH and total diffusion was lower than Ca(OH)2 alone. The smear layer inhibited diffusion. PMID- 29342092 TI - Metabolic Alterations in Cancer Cells and the Emerging Role of Oncometabolites as Drivers of Neoplastic Change. AB - The mitochondrion is an important organelle and provides energy for a plethora of intracellular reactions. Metabolic dysregulation has dire consequences for the cell, and alteration in metabolism has been identified in multiple disease states cancer being one. Otto Warburg demonstrated that cancer cells, in the presence of oxygen, undergo glycolysis by reprogramming their metabolism-termed "aerobic glycolysis". Alterations in metabolism enable cancer cells to gain a growth advantage by obtaining precursors for macromolecule biosynthesis, such as nucleic acids and lipids. To date, several molecules, termed "oncometabolites", have been identified to be elevated in cancer cells and arise from mutations in nuclear encoded mitochondrial enzymes. Furthermore, there is evidence that oncometabolites can affect mitochondrial dynamics. It is believed that oncometabolites can assist in reprogramming enzymatic pathways and providing cancer cells with selective advantages. In this review, we will touch upon the effects of normal and aberrant mitochondrial metabolism in normal and cancer cells, the advantages of metabolic reprogramming, effects of oncometabolites on metabolism and mitochondrial dynamics and therapies aimed at targeting oncometabolites and metabolic aberrations. PMID- 29342094 TI - Telomeric Repeat-Containing RNAs (TERRA) Decrease in Squamous Cell Carcinoma of the Head and Neck Is Associated with Worsened Clinical Outcome. AB - Telomeres are transcribed into noncoding telomeric repeat-containing RNAs (TERRA), which are essential for telomere maintenance. Deregulation of TERRA transcription impairs telomere metabolism and a role in tumorigenesis has been proposed. Head and neck cancer (HNC) is one of the most frequent cancers worldwide, with head and neck squamous cell carcinoma (HNSCC) being the predominant type. Since HNSCC patients are characterized by altered telomere maintenance, a dysfunction in telomere transcription can be hypothesized. In this prospective study, we compared TERRA levels in the tumor and matched normal tissue from 23 HNSCC patients. We then classified patients in two categories according to the level of TERRA expression in the tumor compared to the normal tissue: (1) lower expression in the tumor, (2) higher or similar expression in tumor. A significant proportion of patients in the first group died of the disease within less than 34 months postsurgery, while the majority of patients in the second group were alive and disease-free. Our results highlight a striking correlation between TERRA expression and tumor aggressiveness in HNSCC suggesting that TERRA levels may be proposed as a novel molecular prognostic marker for HNSCC. PMID- 29342095 TI - Preparation of Cyano-Substituted Tetraphenylethylene Derivatives and Their Applications in Solution-Processable OLEDs. AB - Creation of organic luminescent materials with high solid-state efficiency is of vital importance for their applications in optoelectronic fields. Here, a series of AIE luminogens (AIE gens), (Z)-2,3-bis(4-(9,9-bis(6-(9H-carbazol-9-yl)hexyl) 9H-fluoren-2-yl)phenyl)-3-phenylacrylonitrile (SFC), and 2,3-bis(4-(9,9-bis(6-(9H carbazol-9-yl)hexyl)-9H-fluoren-2-yl)phenyl)fumaronitrile (DFC), utilizing 2,3,3 triphenylacrylonitrile and 2,3-diphenylfumaronitrile as respective centers, are designed and synthesized by Suzuki coupling reactions with high yields. The cis- and trans-isomers of DFC are also successfully obtained. All of them are thermally stable and show good solubility in common organic solvents. They all emit weakly in solution, but become strong emitters when fabricated into solid films. It is found introduction of one additional cyano group in DFC induced a big red-shift in solid-state emission, owing to its high electron-withdrawing ability. The cis- and trans-DFC show similar photophysical and Cyclic voltammogram (CV) behaviors. Non-doped solution-processed organic light-emitting diodes (OLEDs) using the three compounds as light-emitting layers are fabricated. SFC gives the best device performance with a maximum luminance of 5201 cd m-2, a maximum current efficiency of 3.67 cd A-1 and a maximum external quantum efficiencies (EQE) of 1.37%. Red-shifted EL spectra are observed for cis- and trans-DFC-based device, and the OLED using trans-DFC as active layer exhibits better performance, which might derive from their different conformation in film state. PMID- 29342096 TI - High-Resolution Lipidomics of the Early Life Stages of the Red Seaweed Porphyra dioica. AB - Porphyra dioica is a commercial seaweed consumed all over the world, mostly in the shape of nori sheets used for "sushi" preparation. It is a well-known part of the Asian diet with health benefits, which have been associated, among others, to the high levels of n-3 and n-6 fatty acids in this red alga. However, other highly valued lipids of Porphyra are polar lipids that remain largely undescribed and can have both nutritional value and bioactivity, thus could contribute to the valorization of this seaweed. In this context, the present work aims to identify the lipidome of two life cycle stages of the Atlantic species Porphyra dioica: the early life stage conchocelis produced in an indoor-nursery, and young blades produced outdoors using an integrated multitrophic aquaculture (IMTA) framework. Both the blades (gametophyte) and conchocelis (sporophyte) are commercialized in the food and cosmetics sectors. Liquid chromatography coupled to Q-Exactive high resolution-mass spectrometry (MS) platform was used to gain insight into the lipidome of these species. Our results allowed the identification of 110 and 100 lipid molecular species in the lipidome of the blade and conchocelis, respectively. These lipid molecular species were distributed as follows (blade/conchocelis): 14/15 glycolipids (GLs), 93/79 phospholipids (PLs), and 3/6 betaine lipids. Both life stages displayed a similar profile of GLs and comprised 20:4(n-6) and 20:5(n-3) fatty acids that contribute to n-3 and n-6 fatty acid pool recorded and rank among the molecular species with higher potential bioactivity. PLs' profile was different between the two life stages surveyed, mainly due to the number and relative abundance of molecular species. This finding suggests that differences between both life stages were more likely related with shifts in the lipids of extraplastidial membranes rather than in plastidial membranes. PLs contained n-6 and n-3 precursors and in both life stages of Porphyra dioica the n-6/n-3 ratio recorded was less than 2, highlighting the potential benefits of using these life stages in human diet to prevent chronic diseases. Atherogenic and thrombogenic indexes of blades (0.85 and 0.49, respectively) and conchocelis (0.34 and 0.30, respectively) are much lower than those reported for other Rhodophyta, which highlights their potential application as food or as functional ingredients. Overall, MS-based platforms represent a powerful tool to characterize lipid metabolism and target lipids along different life stages of algal species displaying complex life cycles (such as Porphyra dioica), contributing to their biotechnological application. PMID- 29342097 TI - Time Domain Near Infrared Spectroscopy Device for Monitoring Muscle Oxidative Metabolism: Custom Probe and In Vivo Applications. AB - Measurement of muscle oxidative metabolism is of interest for monitoring the training status in athletes and the rehabilitation process in patients. Time domain near infrared spectroscopy (TD NIRS) is an optical technique that allows the non-invasive measurement of the hemodynamic parameters in muscular tissue: concentrations of oxy- and deoxy-hemoglobin, total hemoglobin content, and tissue oxygen saturation. In this paper, we present a novel TD NIRS medical device for muscle oxidative metabolism. A custom-printed 3D probe, able to host optical elements for signal acquisition from muscle, was develop for TD NIRS in vivo measurements. The system was widely characterized on solid phantoms and during in vivo protocols on healthy subjects. In particular, we tested the in vivo repeatability of the measurements to quantify the error that we can have by repositioning the probe. Furthermore, we considered a series of acquisitions on different muscles that were not yet previously performed with this custom probe: a venous-arterial cuff occlusion of the arm muscle, a cycling exercise, and an isometric contraction of the vastus lateralis. PMID- 29342098 TI - Mechano-Enzymatic Deconstruction with a New Enzymatic Cocktail to Enhance Enzymatic Hydrolysis and Bioethanol Fermentation of Two Macroalgae Species. AB - The aim of this study was to explore the efficiency of a mechano-enzymatic deconstruction of two macroalgae species for sugars and bioethanol production, by using a new enzymatic cocktail (Haliatase) and two types of milling modes (vibro ball: VBM and centrifugal milling: CM). By increasing the enzymatic concentration from 3.4 to 30 g/L, the total sugars released after 72 h of hydrolysis increased (from 6.7 to 13.1 g/100 g TS and from 7.95 to 10.8 g/100 g TS for the green algae U. lactuca and the red algae G. sesquipedale, respectively). Conversely, total sugars released from G. sesquipedale increased (up to 126% and 129% after VBM and CM, respectively). The best bioethanol yield (6 geth/100 g TS) was reached after 72 h of fermentation of U. lactuca and no increase was obtained after centrifugal milling. The latter led to an enhancement of the ethanol yield of G. sesquipedale (from 2 to 4 g/100 g TS). PMID- 29342099 TI - Poly(lactic acid) (PLA) Based Tear Resistant and Biodegradable Flexible Films by Blown Film Extrusion. AB - Poly(lactic acid) (PLA) was melt mixed in a laboratory extruder with poly(butylene adipate-co-terephthalate) (PBAT) and poly(butylene succinate) (PBS) in the presence of polypropylene glycol di glycidyl ether (EJ400) that acted as both plasticizer and compatibilizer. The process was then scaled up in a semi industrial extruder preparing pellets having different content of a nucleating agent (LAK). All of the formulations could be processed by blowing extrusion and the obtained films showed mechanical properties dependent on the LAK content. In particular the tearing strength showed a maximum like trend in the investigated composition range. The films prepared with both kinds of blends showed a tensile strength in the range 12-24 MPa, an elongation at break in the range 150-260% and a significant crystallinity. PMID- 29342101 TI - A Novel Methodology for Improving Plant Pest Surveillance in Vineyards and Crops Using UAV-Based Hyperspectral and Spatial Data. AB - Recent advances in remote sensed imagery and geospatial image processing using unmanned aerial vehicles (UAVs) have enabled the rapid and ongoing development of monitoring tools for crop management and the detection/surveillance of insect pests. This paper describes a (UAV) remote sensing-based methodology to increase the efficiency of existing surveillance practices (human inspectors and insect traps) for detecting pest infestations (e.g., grape phylloxera in vineyards). The methodology uses a UAV integrated with advanced digital hyperspectral, multispectral, and RGB sensors. We implemented the methodology for the development of a predictive model for phylloxera detection. In this method, we explore the combination of airborne RGB, multispectral, and hyperspectral imagery with ground-based data at two separate time periods and under different levels of phylloxera infestation. We describe the technology used-the sensors, the UAV, and the flight operations-the processing workflow of the datasets from each imagery type, and the methods for combining multiple airborne with ground-based datasets. Finally, we present relevant results of correlation between the different processed datasets. The objective of this research is to develop a novel methodology for collecting, processing, analising and integrating multispectral, hyperspectral, ground and spatial data to remote sense different variables in different applications, such as, in this case, plant pest surveillance. The development of such methodology would provide researchers, agronomists, and UAV practitioners reliable data collection protocols and methods to achieve faster processing techniques and integrate multiple sources of data in diverse remote sensing applications. PMID- 29342100 TI - Modulation of the Fungal-Host Interaction by the Intra-Species Diversity of C. albicans. AB - The incidence of human infections caused by the opportunistic fungal pathogen Candida albicans is on the rise due to increasing numbers of immunosuppressed patients. The importance of the immune system in preventing overgrowth of the colonizing fungus and thereby limiting infection is well recognized and host protective mechanisms widely investigated. Only recently, it was recognized that the natural diversity in the fungal species could also influence the outcome of the interaction between the fungus and the host. C. albicans strain-specific differences are complex and their regulation at the genomic, genetic, and epigenetic level and by environmental factors is only partially understood. In this review, we provide an overview of the natural diversity of C. albicans and discuss how it impacts host-fungal interactions and thereby affects the balance between commensalism versus disease. PMID- 29342102 TI - Development of a High-Sensitivity Wireless Accelerometer for Structural Health Monitoring. AB - Structural health monitoring (SHM) is playing an increasingly important role in ensuring the safety of structures. A shift of SHM research away from traditional wired methods toward the use of wireless smart sensors (WSS) has been motivated by the attractive features of wireless smart sensor networks (WSSN). The progress achieved in Micro Electro-Mechanical System (MEMS) technologies and wireless data transmission, has extended the effectiveness and range of applicability of WSSNs. One of the most common sensors employed in SHM strategies is the accelerometer; however, most accelerometers in WSS nodes have inadequate resolution for measurement of the typical accelerations found in many SHM applications. In this study, a high-resolution and low-noise tri-axial digital MEMS accelerometer is incorporated in a next-generation WSS platform, the Xnode. In addition to meeting the acceleration sensing demands of large-scale civil infrastructure applications, this new WSS node provides powerful hardware and a robust software framework to enable edge computing that can deliver actionable information. Hardware and software integration challenges are presented, and the associate resolutions are discussed. The performance of the wireless accelerometer is demonstrated experimentally through comparison with high-sensitivity wired accelerometers. This new high-sensitivity wireless accelerometer will extend the use of WSSN to a broader class of SHM applications. PMID- 29342103 TI - Minimally-Invasive Neural Interface for Distributed Wireless Electrocorticogram Recording Systems. AB - This paper presents a minimally-invasive neural interface for distributed wireless electrocorticogram (ECoG) recording systems. The proposed interface equips all necessary components for ECoG recording, such as the high performance front-end integrated circuits, a fabricated flexible microelectrode array, and wireless communication inside a miniaturized custom-made platform. The multiple units of the interface systems can be deployed to cover a broad range of the target brain region and transmit signals via a built-in intra-skin communication (ISCOM) module. The core integrated circuit (IC) consists of 16-channel, low power push-pull double-gated preamplifiers, in-channel successive approximation register analog-to-digital converters (SAR ADC) with a single-clocked bootstrapping switch and a time-delayed control unit, an ISCOM module for wireless data transfer through the skin instead of a power-hungry RF wireless transmitter, and a monolithic voltage/current reference generator to support the aforementioned analog and mixed-signal circuit blocks. The IC was fabricated using 250 nm CMOS processes in an area of 3.2 * 0.9 mm2 and achieved the low power operation of 2.5 uW per channel. Input-referred noise was measured as 5.62 uVrms for 10 Hz to 10 kHz and ENOB of 7.21 at 31.25 kS/s. The implemented system successfully recorded multi-channel neural activities in vivo from a primate and demonstrated modular expandability using the ISCOM with power consumption of 160 uW. PMID- 29342104 TI - Synthesis, Anti-Proliferative Activity Evaluation and 3D-QSAR Study of Naphthoquinone Derivatives as Potential Anti-Colorectal Cancer Agents. AB - Colorectal cancer (CRC) is a disease with high incidence and mortality, constituting the fourth most common cause of death from cancer worldwide. Naphthoquinones are attractive compounds due to their biological and structural properties. In this work, 36 naphthoquinone derivatives were synthesized and their activity evaluated against HT-29 cells. Overall, high to moderate anti proliferative activity was observed in most members of the series, with 15 compounds classified as active (1.73 < IC50 < 18.11 MUM). The naphtho[2,3 b]thiophene-4,9-dione analogs showed potent cytotoxicity, 8-hydroxy-2-(thiophen-2 ylcarbonyl)naphtho[2,3-b]thiophene-4,9-dione being the compound with the highest potency and selectivity. Our results suggest that the toxicity is improved in molecules with tricyclic naphtho[2,3-b]furan-4,9-dione and naphtho[2,3 b]thiophene-4,9-dione systems 2-substituted with an electron-withdrawing group. A 3D-QSAR study of comparative molecular field analysis (CoMFA) was carried out, resulting in the generation of a reliable model (r2 = 0.99 and q2 = 0.625). This model allowed proposing five new compounds with two-fold higher theoretical anti proliferative activity, which would be worthwhile to synthesize and evaluate. Further investigations will be needed to determine the mechanism involved in the effect of most active compounds which are potential candidates for new anticancer agents. PMID- 29342105 TI - Neuroimmune-Driven Neuropathic Pain Establishment: A Focus on Gender Differences. AB - The role of neuroinflammatory cells in the establishment of neuropathic pain has been investigated in depth in the last few years. In particular, microglia have been shown to be key players in the induction of tactile allodynia, as they release proinflammatory molecules that, in turn, sensitize nociceptive neurons within the spinal cord. However, the role of peripheral immune cells such as macrophages, infiltrating monocytes, mast cells, and T-cells has been highlighted in the last few studies, even though the data are still conflicting and need to be clarified. Intriguingly, the central (microglia) and peripheral (T-cell) adaptive immune cells that orchestrate maladaptive process-driven neuropathic pain seem to be involved in a gender-dependent manner. In this review, we highlight the role of the microglia and peripheral immune cells in chronic degenerative disease associated with neuro-immune-inflammatory processes. PMID- 29342106 TI - Adrenergic Agonists Bind to Adrenergic-Receptor-Like Regions of the Mu Opioid Receptor, Enhancing Morphine and Methionine-Enkephalin Binding: A New Approach to "Biased Opioids"? AB - Extensive evidence demonstrates functional interactions between the adrenergic and opioid systems in a diversity of tissues and organs. While some effects are due to receptor and second messenger cross-talk, recent research has revealed an extracellular, allosteric opioid binding site on adrenergic receptors that enhances adrenergic activity and its duration. The present research addresses whether opioid receptors may have an equivalent extracellular, allosteric adrenergic binding site that has similar enhancing effects on opioid binding. Comparison of adrenergic and opioid receptor sequences revealed that these receptors share very significant regions of similarity, particularly in some of the extracellular and transmembrane regions associated with adrenergic binding in the adrenergic receptors. Five of these shared regions from the mu opioid receptor (muOPR) were synthesized as peptides and tested for binding to adrenergic, opioid and control compounds using ultraviolet spectroscopy. Adrenergic compounds bound to several of these muOPR peptides with low micromolar affinity while acetylcholine, histamine and various adrenergic antagonists did not. Similar studies were then conducted with purified, intact muOPR with similar results. Combinations of epinephrine with methionine enkephalin or morphine increased the binding of both by about half a log unit. These results suggest that muOPR may be allosterically enhanced by adrenergic agonists. PMID- 29342107 TI - Honokiol Improves Liver Steatosis in Ovariectomized Mice. AB - Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease, and is associated with the development of metabolic syndrome. Postmenopausal women with estrogen deficiency are at a higher risk of progression to NAFLD. Estrogen has a protective effect against the progression of the disease. Currently, there are no safe and effective treatments for these liver diseases in postmenopausal women. Honokiol (Ho), a bioactive natural product derived from Magnolia spp, has anti inflammatory, anti-angiogenic, and anti-oxidative properties. In our study, we investigated the beneficial effects of Ho on NAFLD in ovariectomized (OVX) mice. We divided the mice into four groups, as follows: SHAM, OVX, OVX+beta-estradiol (0.4 mg/kg of bodyweight), and OVX+Ho (50 mg/kg of diet). Mice were fed diets with/without Ho for 12 weeks. The bodyweight, epidermal fat, and weights of liver tissue were lower in the OVX group than in the other groups. Ho improved hepatic steatosis and reduced proinflammatory cytokine levels. Moreover, Ho markedly downregulated plasma lipid levels. Our results indicate that Ho ameliorated OVX induced fatty liver and inflammation, as well as associated lipid metabolism. These findings suggest that Ho may be hepatoprotective against NAFLD in postmenopausal women. PMID- 29342108 TI - Different Lipid Regulation in Ovarian Cancer: Inhibition of the Immune System. AB - Lipid metabolism is altered in several cancer settings leading to different ratios of intermediates. Ovarian cancer is the most lethal gynecological malignancy. Cancer cells disperse in the abdominal space and ascites occurs. T cells obtained from ascites are unable to proliferate after an antigenic stimulus. The proliferation of ascites-derived T cells can be restored after culturing the cells for ten days in normal culture medium. No pathway aberrancies were detected. The acellular fraction of ascites can inhibit the proliferation of autologous as well as allogeneic peripheral blood lymphocytes, indicating the presence of soluble factors that interfere with T cell functionality. Therefore, we analyzed 109 lipid mediators and found differentially regulated lipids in suppressive ascitic fluid compared to normal abdominal fluid. Our study indicates the presence of lipid intermediates in ascites of ovarian cancer patients, which coincidences with T cell dysfunctionality. Since the immune system in the abdominal cavity is compromised, this may explain the high seeding efficiency of disseminated tumor cells. Further research is needed to fully understand the correlation between the various lipids and T cell proliferation, which could lead to new treatment options. PMID- 29342109 TI - Sources of Added Sugars in Young Children, Adolescents, and Adults with Low and High Intakes of Added Sugars. AB - High intake of added sugars is associated with excess energy intake and poorer diet quality. The objective of this cross-sectional study (n = 16,806) was to estimate usual intakes and the primary food sources of added sugars across the range of intakes (i.e., deciles) among U.S. children (2-8 years), adolescents and teens (9-18 years), and adults (>=19 years) using the National Health and Nutrition Examination (NHANES) data from 2009-2012. The percent energy contributed by added sugars was 14.3 +/- 0.2% (2-8 years), 16.2 +/- 0.2% (9-18 years), and 13.1 +/- 0.2% (>=19 years), suggesting the highest intakes are among adolescents and teens. However, the primary foods/beverages that contribute to added sugars were remarkably consistent across the range of intakes, with the exception of the lowest decile, and include sweetened beverages and sweet bakery products. Interestingly across all age groups, even those in the lowest decile of added sugars exceed the 10% guidelines. Additional foods contributing to high intakes were candy and other desserts (e.g., ice cream) in children and adolescents, and coffee and teas in adults. Tailoring public health messaging to reduce intakes of these identified food groups may be of utility in designing effective strategies to reduce added sugar intake in the U.S. PMID- 29342110 TI - Medlay: A Reconfigurable Micro-Power Management to Investigate Self-Powered Systems. AB - In self-powered microsystems, a power management is essential to extract, transfer and regulate power from energy harvesting sources to loads such as sensors. The challenge is to consider all of the different structures and components available and build the optimal power management on a microscale. The purpose of this paper is to streamline the design process by creating a novel reconfigurable testbed called Medlay. First, we propose a uniform interface for management functions e.g., power conversion, energy storing and power routing. This interface results in a clear layout because power and status pins are strictly separated, and inputs and outputs have fixed positions. Medlay is the ready-to-use and open-hardware platform based on the interface. It consists of a base board and small modules incorporating e.g., dc-dc converters, power switches and supercapacitors. Measurements confirm that Medlay represents a system on one circuit board, as parasitic effects of the interconnections are negligible. The versatility regarding different setups on the testbed is determined to over 250,000 combinations by layout graph grammar. Lastly, we underline the applicability by recreating three state-of-the-art systems with the testbed. In conclusion, Medlay facilitates building and testing power management in a very compact, clear and extensible fashion. PMID- 29342111 TI - Cytotoxicity Evaluation of Turmeric Extract Incorporated Oil-in-Water Nanoemulsion. AB - To overcome the drawbacks of conventional drug delivery system, nanoemulsion have been developed as an advanced form for improving the delivery of active ingredients. However, safety evaluation is crucial during the development stage before the commercialization. Therefore, the aim of this study was to evaluate the cytotoxicity of two types of newly developed nanoemulsions. Turmeric extract loaded nanoemulsion powder-10.6 (TE-NEP-10.6, high content of artificial surfactant Tween 80), which forms the optimal nanoemulsion, and the TE-NEP-8.6 made by increasing the content of natural emulsifier (lecithin) to reduce the potential toxicity of nanoemulsion were cultured with various cells (NIH3T3, H9C2, HepG2, hCPC, and hEPC) and the changes of each cell were observed followed by nanoemulsion treatment. As a result, the two nanoemulsions (TE-NEP-10.6 and TE NEP-8.6) did not show significant difference in cell viability. In the case of cell line (NIH3T3, H9C2, and HepG2), toxicity was not observed at an experimental concentration of less than 1 mg/mL, however, the cell survival rate decreased in a concentration dependent manner in the case of primary cultured cells. These results from our study can be used as a basic data to confirm the cell type dependent toxicity of nanoemulsion. PMID- 29342112 TI - Useful Bicistronic Reporter System for Studying Poly(A) Site-Defining cis Elements and Regulation of Alternative Polyadenylation. AB - The link between polyadenylation (pA) and various biological, behavioral, and pathological events of eukaryotes underlines the need to develop in vivo polyadenylation assay methods for characterization of the cis-acting elements, trans-acting factors and environmental stimuli that affect polyadenylation efficiency and/or relative usage of two alternative polyadenylation (APA) sites. The current protein-based CAT or luciferase reporter systems can measure the polyadenylation efficiency of a single pA site or candidate cis element but not the choice of two APA sites. To address this issue, we developed a set of four new bicistronic reporter vectors that harbor either two luciferase or fluorescence protein open reading frames connected with one Internal Ribosome Entry Site (IRES). Transfection of single or dual insertion constructs of these vectors into mammalian cells demonstrated that they could be utilized not only to quantify the strength of a single candidate pA site or cis element, but also to accurately measure the relative usage of two APA sites at both the mRNA (qRT-PCR) and protein levels. This represents the first reporter system that can study polyadenylation efficiency of a single pA site or element and regulation of two APA sites at both the mRNA and protein levels. PMID- 29342114 TI - GaN-Based Laser Wireless Power Transfer System. AB - The aim of this work is to present a potential application of gallium nitride based optoelectronic devices. By using a laser diode and a photodetector, we designed and demonstrated a free-space compact and lightweight wireless power transfer system, whose efficiency is limited by the efficiency of the receiver. We analyzed the effect of the electrical load, temperature, partial absorption and optical excitation distribution on the efficiency, by identifying heating and band-filling as the most impactful processes. By comparing the final demonstrator with a commercial RF-based Qi system, we conclude that the efficiency is still low at close range, but is promising in medium to long range applications. Efficiency may not be a limiting factor, since this concept can enable entirely new possibilities and designs, especially relevant for space applications. PMID- 29342113 TI - Mitochondria, Oxidative Stress and the Kynurenine System, with a Focus on Ageing and Neuroprotection. AB - In this review, the potential causes of ageing are discussed. We seek to gain insight into the main physiological functions of mitochondria and discuss alterations in their function and the genome, which are supposed to be the central mechanisms in senescence. We conclude by presenting the potential modulating role of the kynurenine pathway in the ageing processes. Mitochondrial dynamics are supposed to have important physiological roles in maintaining cell homeostasis. During ageing, a decrease in mitochondrial dynamics was reported, potentially compromising the function of mitochondria. Mitochondrial biogenesis not only encompasses mitochondrial dynamics, but also the regulation of transcription and translation of genes, and mitochondria are supposed to play a prominent role in cell death during senescence. Defects in the mtDNA replication machinery and failure in the repair of mtDNA might result in the accumulation of mutations, leading to mitochondrial dysfunction and bioenergetic failure of the cell. The role of reactive oxygen species (ROS) in the ageing processes is widely acknowledged. Exaggerated oxidative damage to mDNA is supposed to take place during senescence, including single-nucleotide base alterations, nucleotide base pair alterations, chain breaks and cross linkage. A broad repertoire for the repair of DNA faults has evolved, but they do not function efficiently during senescence. Poly (ADP-ribose) polymerase (PARP) is an enzyme that assists in DNA repair, i.e., it participates in the repair of single-stranded DNA nicks, initiating base excision repair (BER). In the case of extensive DNA damage, PARP 1 becomes overactivated and rapidly depletes the intracellular NAD+ and ATP pools. This results in a profound energy loss of the cell and leads to cell dysfunction, or even cell death. Alterations in the kynurenine system have been linked with ageing processes and several age-related disorders. The kynurenine pathway degrades tryptophan (TRP) to several metabolites, among others kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QUIN). The end product of the route is NAD+. The first metabolic reaction is mediated by TRP-2,3-dioxygenase (TDO) or indolamine-2,3-dioxygenases (IDO), the latter being induced by inflammation, and it is thought to have a significant role in several disorders and in ageing. Research is currently focusing on the KYN pathway, since several intermediates possess neuro- and immunoactive properties, and hence are capable of modulating the activity of certain brain cells and inflammatory responses. During ageing, and in many age-associated disorders like obesity, dyslipidaemia, hypertension, insulin resistance and neurodegenerative diseases, low-grade, sustained inflammation and upregulation of IDO have been reported. However, TRP downstream catabolites create a negative feedback loop by weakening the activated immune system through several actions, including a decline in the Th1 response and an enhancement of Th2-type processes. The broad actions of the KYN intermediates in brain excitation/inhibition and their role in regulating immune responses may provide the possibility of modifying the pathological processes in an array of age-associated diseases in the future. PMID- 29342115 TI - Investigating the Associations between Ethnic Networks, Community Social Capital, and Physical Health among Marriage Migrants in Korea. AB - This study examines factors associated with the physical health of Korea's growing immigrant population. Specifically, it focuses on the associations between ethnic networks, community social capital, and self-rated health (SRH) among female marriage migrants. For empirical testing, secondary analysis of a large nationally representative sample (NSMF 2009) is conducted. Given the clustered data structure (individuals nested in communities), a series of two level random intercepts and slopes models are fitted to probe the relationships between SRH and interpersonal (bonding and bridging) networks among foreign-born wives in Korea. In addition to direct effects, cross-level interaction effects are investigated using hierarchical linear modeling. While adjusting for confounders, bridging (inter-ethnic) networks are significantly linked with better health. Bonding (co-ethnic) networks, to the contrary, are negatively associated with immigrant health. Net of individual-level covariates, living in a commuijnity with more aggregate bridging social capital is positively linked with health. Community-level bonding social capital, however, is not a significant predictor. Lastly, two cross-level interaction terms are found. First, the positive relationship between bridging network and health is stronger in residential contexts with more aggregate bridging social capital. Second, it is weaker in communities with more aggregate bonding social capital. PMID- 29342117 TI - Assessment of TSPO in a Rat Experimental Autoimmune Myocarditis Model: A Comparison Study between [18F]Fluoromethyl-PBR28 and [18F]CB251. AB - Overexpression of the 18-kDa translocator protein (TSPO) is closely linked to inflammatory responses in the heart, including myocarditis, which can lead to myocardial necrosis. In vivo assessment of inflammatory responses has enabled the precise diagnosis of myocarditis to improve clinical outcomes. Here, we evaluated TSPO overexpression in a rat model of experimental autoimmune myocarditis (EAM) compared to healthy rats using two TSPO radiotracers, [18F]fluoromethyl-PBR28 ([18F]1) and [18F]CB251 ([18F]2). All radiolabeling methods were successfully applied to an automated module for the reproducible preparation of TSPO radiotracers. Both radiotracers were directly compared in an EAM rat model, as well as in healthy rats to determine whether either radiotracer provides a more promising assessment of in vivo TSPO overexpression. [18F]2 provided more specific TSPO-uptake in the heart of the EAM rats (1.32-fold that of the heart-to lung uptake ratio versus healthy controls), while [18F]1 did not show a significant difference between the two groups. Histopathological characterization revealed that a prominent positron emission tomography (PET) signal of [18F]2 in the EAM rats corresponded to the presence of a higher density of TSPO compared to the healthy controls. These results suggest that the imidazole[1,2-a]pyridine based radiotracer [18F]2 is a sensitive tool for noninvasively diagnosing myocarditis related to inflammation of the heart muscle by assessing abnormal TSPO expression. PMID- 29342118 TI - Microbial Degradation Behavior in Seawater of Polyester Blends Containing Poly(3 hydroxybutyrate-co-3-hydroxyhexanoate) (PHBHHx). AB - The microbial degradation behavior of poly(3-hydroxybutyrate-co-3 hydroxyhexanoate) (PHBHHx) and its compound with several polyesters such as poly(butylene adipate-co-telephtharate) (PBAT), poly(butylene succinate) (PBS), and polylactic acid (PLA) in seawater was tested by a biological oxygen demand (BOD) method. PHBHHx showed excellent biodegradation in seawater in this study. In addition, the biodegradation rate of several blends was much influenced by the weight ratio of PHBHHx in their blends and decreased in accordance with the decrement of PHBHHX ratio. The surface morphology of the sheet was important factor for controlling the biodegradation rate of PHBHHx-containing blends in seawater. PMID- 29342119 TI - Novel Hybrid Formulations Based on Thiourea Derivatives and Core@Shell Fe3O4@C18 Nanostructures for the Development of Antifungal Strategies. AB - The continuously increasing global impact of fungal infections is requiring the rapid development of novel antifungal agents. Due to their multiple pharmacological activities, thiourea derivatives represent privileged candidates for shaping new drugs. We report here the preparation, physico-chemical characterization and bioevaluation of hybrid nanosystems based on new 2-((4 chlorophenoxy)methyl)-N-(substituted phenylcarbamo-thioyl)benzamides and Fe3O4@C18 core@shell nanoparticles. The new benzamides were prepared by an efficient method, then their structure was confirmed by spectral studies and elemental analysis and they were further loaded on Fe3O4@C18 nanostructures. Both the obtained benzamides and the resulting hybrid nanosystems were tested for their efficiency against planktonic and adherent fungal cells, as well as for their in vitro biocompatibility, using mesenchymal cells. The antibiofilm activity of the obtained benzamides was dependent on the position and nature of substituents, demonstrating that structure modulation could be a very useful approach to enhance their antimicrobial properties. The hybrid nanosystems have shown an increased efficiency in preventing the development of Candida albicans (C. albicans) biofilms and moreover, they exhibited a good biocompatibility, suggesting that Fe3O4@C18core@shell nanoparticles could represent promising nanocarriers for antifungal substances, paving the way to the development of novel effective strategies with prophylactic and therapeutic value for fighting biofilm associated C. albicans infections. PMID- 29342116 TI - VEGF Signaling in Neurological Disorders. AB - Vascular endothelial growth factor (VEGF) is a potent growth factor playing diverse roles in vasculogenesis and angiogenesis. In the brain, VEGF mediates angiogenesis, neural migration and neuroprotection. As a permeability factor, excessive VEGF disrupts intracellular barriers, increases leakage of the choroid plexus endothelia, evokes edema, and activates the inflammatory pathway. Recently, we discovered that a heparin binding epidermal growth factor like growth factor (HB-EGF)-a class of EGF receptor (EGFR) family ligands-contributes to the development of hydrocephalus with subarachnoid hemorrhage through activation of VEGF signaling. The objective of this review is to entail a recent update on causes of death due to neurological disorders involving cerebrovascular and age-related neurological conditions and to understand the mechanism by which angiogenesis-dependent pathological events can be treated with VEGF antagonisms. The Global Burden of Disease study indicates that cancer and cardiovascular disease including ischemic and hemorrhagic stroke are two leading causes of death worldwide. The literature suggests that VEGF signaling in ischemic brains highlights the importance of concentration, timing, and alternate route of modulating VEGF signaling pathway. Molecular targets distinguishing two distinct pathways of VEGF signaling may provide novel therapies for the treatment of neurological disorders and for maintaining lower mortality due to these conditions. PMID- 29342121 TI - beta-Escin Effectively Modulates HUVECS Proliferation and Tube Formation. AB - In the present study we evaluated the anti-angiogenic activities of beta-escin (the major active compound of Aesculus hippocastanum L. seeds). Human umbilical vein endothelial cells (HUVECs) were used as an in vitro model for studying the molecular mechanism underlying the anti-angiogenic effect of beta-escin. We investigated the in vitro effects on proliferation, migration, and tube formation of HUVECs and in vivo anti-angiogenic activity was evaluated in a chick chorioallantoic membrane (CAM) angiogenesis assay. Moreover, the effect on gene expressions was determined by the RT2 ProfilerTM human angiogenesis PCR Array. It was found that beta-escin exerts inhibitory effect on the basic fibroblast growth factor (bFGF)-induced proliferation, migration and tube formation, as well as CAM angiogenesis in vivo. The inhibition of critical steps of angiogenic process observed with beta-escin could be partially explained by suppression of Akt activation in response to bFGF. Moreover, the anti-angiogenic effects of beta escin could also be mediated via inhibition of EFNB2 and FGF-1 gene expressions in endothelial cells. In conclusion, beta-escin affects endothelial cells as a negative mediator of angiogenesis in vitro and in vivo and may therefore be considered as a promising candidate for further research elucidating its underlying mechanism of action. PMID- 29342122 TI - Synthesis and Characterization of a Heterometallic Extended Architecture Based on a Manganese(II)-Substituted Sandwich-Type Polyoxotungstate. AB - The reaction of [alpha-P2W15O56]12- with MnII and DyIII in an aqueous basic solution led to the isolation of an all inorganic heterometallic aggregate Na10(OH2)42[{Dy(H2O)6}2Mn4P4W30O112(H2O)2].17H2O (Dy2Mn4-P2W15). Single-crystal X ray diffraction revealed that Dy2Mn4-P2W15 crystallizes in the triclinic system with space group P 1 - , and consists of a tetranuclear manganese(II)-substituted sandwich-type phosphotungstate [Mn4(H2O)2(P2W15O56)2]16- (Mn4-P2W15), Na, and DyIII cations. Compound Dy2Mn4-P2W15 exhibits a 1D ladder-like chain structure based on sandwich-type segments and dysprosium cations as linkers, which are further connected into a three-dimensional open framework by sodium cations. The title compound was structurally and compositionally characterized in solid state by single-crystal XRD, powder X-ray diffraction (PXRD), Fourier-transform infrared spectroscopy (FTIR), thermogravimetric (TGA), and elemental analyses. Further, the absorption and emission electronic spectra in aqueous solutions of Dy2Mn4-P2W15 and Mn4-P2W15 were studied. Also, magnetic properties were studied and compared with the magnetic behavior of [Mn4(H2O)2(P2W15O56)2]16-. PMID- 29342123 TI - Image-Based Localization Aided Indoor Pedestrian Trajectory Estimation Using Smartphones. AB - Accurately determining pedestrian location in indoor environments using consumer smartphones is a significant step in the development of ubiquitous localization services. Many different map-matching methods have been combined with pedestrian dead reckoning (PDR) to achieve low-cost and bias-free pedestrian tracking. However, this works only in areas with dense map constraints and the error accumulates in open areas. In order to achieve reliable localization without map constraints, an improved image-based localization aided pedestrian trajectory estimation method is proposed in this paper. The image-based localization recovers the pose of the camera from the 2D-3D correspondences between the 2D image positions and the 3D points of the scene model, previously reconstructed by a structure-from-motion (SfM) pipeline. This enables us to determine the initial location and eliminate the accumulative error of PDR when an image is successfully registered. However, the image is not always registered since the traditional 2D-to-3D matching rejects more and more correct matches when the scene becomes large. We thus adopt a robust image registration strategy that recovers initially unregistered images by integrating 3D-to-2D search. In the process, the visibility and co-visibility information is adopted to improve the efficiency when searching for the correspondences from both sides. The performance of the proposed method was evaluated through several experiments and the results demonstrate that it can offer highly acceptable pedestrian localization results in long-term tracking, with an error of only 0.56 m, without the need for dedicated infrastructures. PMID- 29342124 TI - The Root of Atractylodes macrocephala Koidzumi Prevents Obesity and Glucose Intolerance and Increases Energy Metabolism in Mice. AB - Targeting energy expenditure offers a strategy for treating obesity more effectively and safely. In previous studies, we found that the root of Atractylodes macrocephala Koidzumi (Atractylodis Rhizoma Alba, ARA) increased energy metabolism in C2C12 cells. Here, we investigated the effects of ARA on obesity and glucose intolerance by examining energy metabolism in skeletal muscle and brown fat in high-fat diet (HFD) induced obese mice. ARA decreased body weight gain, hepatic lipid levels and serum total cholesterol levels, but did not modify food intake. Fasting serum glucose, serum insulin levels and glucose intolerance were all improved in ARA treated mice. Furthermore, ARA increased peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1alpha) expression, and the phosphorylation of adenosine monophosphate-activated protein kinase (AMPK) in skeletal muscle tissues, and also prevented skeletal muscle atrophy. In addition, the numbers of brown adipocytes and the expressions of PGC1alpha and uncoupling protein 1 (UCP1) were elevated in the brown adipose tissues of ARA treated mice. Our results show that ARA can prevent diet-induced obesity and glucose intolerance in C5BL/6 mice and suggests that the mechanism responsible is related to the promotion of energy metabolism in skeletal muscle and brown adipose tissues. PMID- 29342126 TI - Tailoring Cu Nanoparticle Catalyst for Methanol Synthesis Using the Spinning Disk Reactor. AB - Cu nanoparticles are known to be very active for methanol (MeOH) synthesis at relatively low temperatures, such that smaller particle sizes yield better MeOH productivity. We aimed to control Cu nanoparticle (NP) size and size distribution for catalysing MeOH synthesis, by using the spinning disk reactor. The spinning disk reactor (SDR), which operates based on shear effect and plug flow in thin films, can be used to rapidly micro-mix reactants in order to control nucleation and particle growth for uniform particle size distribution. This could be achieved by varying both physical and chemical operation conditions in a precipitation reaction on the SDR. We have used the SDR for a Cu borohydride reduction to vary Cu NP size from 3 nm to about 55 nm. XRD and TEM characterization confirmed the presence of Cu2O and Cu crystallites when the samples were dried. This technique is readily scalable for Cu NP production by processing continuously over a longer duration than the small-scale tests. However, separation of the nanoparticles from solution posed a challenge as the suspension hardly settled. The Cu NPs produced were tested to be active catalyst for MeOH synthesis at low temperature and MeOH productivity increased with decreasing particle size. PMID- 29342125 TI - Induction of Pro-Apoptotic Endoplasmic Reticulum Stress in Multiple Myeloma Cells by NEO214, Perillyl Alcohol Conjugated to Rolipram. AB - Despite the introduction of new therapies for multiple myeloma (MM), many patients are still dying from this disease and novel treatments are urgently needed. We have designed a novel hybrid molecule, called NEO214, that was generated by covalent conjugation of the natural monoterpene perillyl alcohol (POH), an inducer of endoplasmic reticulum (ER) stress, to rolipram (Rp), an inhibitor of phosphodiesterase-4 (PDE4). Its potential anticancer effects were investigated in a panel of MM cell lines. We found that NEO214 effectively killed MM cells in vitro with a potency that was over an order of magnitude stronger than that of its individual components, either alone or in combination. The cytotoxic mechanism of NEO214 involved severe ER stress and prolonged induction of CCAAT/enhancer-binding protein homologous protein (CHOP), a key pro-apoptotic component of the ER stress response. These effects were prevented by salubrinal, a pharmacologic inhibitor of ER stress, and by CHOP gene knockout. Conversely, combination of NEO214 with bortezomib, a drug in clinical use for patients with MM, resulted in synergistic enhancement of MM cell death. Combination with the adenylate cyclase stimulant forskolin did not enhance NEO214 impact, indicating that cyclic adenosine 3',5'-monophosphate (AMP) pathways might play a lesser role. Our study introduces the novel agent NEO214 as a potent inducer of ER stress with significant anti-MM activity in vitro. It should be further investigated as a potential MM therapy aimed at exploiting this tumor's distinct sensitivity to ER stress. PMID- 29342127 TI - Enhancement in Corneal Permeability of Dissolved Carteolol by Its Combination with Magnesium Hydroxide Nanoparticles. AB - We prepared magnesium hydroxide (MH) nanoparticles, and investigated their effect when combined with dissolved carteolol on the bioavailability and intraocular pressure (IOP)-reducing effect of carteolol. The carteolol was solved in saline containing additives (0.5% methylcellulose, 0.001% benzalkonium chloride, 0.5% mannitol; CRT-solution). MH nanoparticles were prepared by a bead mill method with additives. Then carteolol/MH microparticle and carteolol/MH nanoparticle fixed combinations (mCMFC and nCMFC) were prepared by mixing the CRT-solution and MH particles. The transcorneal penetration and IOP-reducing effect of carteolol was evaluated in rabbits. The mean particle size of mCMFC was 7.2 MUm, and the particle size was reduced to 73.5-113.5 nm by the bead mill treatment. The MH particles in nCMFC remained in the nano size range for 8 days after preparation, and the amounts of lacrimal fluid and corneal damage were unchanged by repetitive instillation of nCMFC (twice a day for 4 weeks). The transcorneal penetration of carteolol was enhanced by the combination with MH nanoparticles, and the IOP reducing effect of nCMFC was significantly higher than that of CRT-solution or mCMFC. In conclusion, we designed nCMFC, and showed that the high levels of dissolved carteolol can be delivered into the aqueous humor by the instillation of nCMFC. Combination with MH nanoparticles may achieve an enhancement of corneal penetration for water-soluble drugs. These findings provide significant information that can be used to design further studies aimed at developing anti glaucoma eye drugs. PMID- 29342128 TI - The Effect of Emulsion Intensity on Selected Sensory and Instrumental Texture Properties of Full-Fat Mayonnaise. AB - Varying processing conditions can strongly affect the microstructure of mayonnaise, opening up new applications for the creation of products tailored to meet different consumer preferences. The aim of the study was to evaluate the effect of emulsification intensity on sensory and instrumental characteristics of full-fat mayonnaise. Mayonnaise, based on a standard recipe, was processed at low and high emulsification intensities, with selected sensory and instrumental properties then evaluated using an analytical panel and a back extrusion method. The evaluation also included a commercial reference mayonnaise. The overall effects of a higher emulsification intensity on the sensory and instrumental characteristics of full-fat mayonnaise were limited. However, texture was affected, with a more intense emulsification resulting in a firmer mayonnaise according to both back extrusion data and the analytical sensory panel. Appearance, taste and flavor attributes were not affected by processing. PMID- 29342129 TI - Fabrication, Structural Characterization and Uniaxial Tensile Properties of Novel Sintered Multi-Layer Wire Mesh Porous Plates. AB - There is an increasing interest in developing porous metals or metallic foams for functional and structural applications. The study of the physical and mechanical properties of porous metals is very important and helpful for their application. In this paper, a novel sintered multilayer wire mesh porous plate material (WMPPs) with a thickness of 0.5 mm-3 mm and a porosity of 10-35% was prepared by winding, pressing, rolling, and subsequently vacuum sintering them. The pore size and total size distribution in the as-prepared samples were investigated using the bubble point method. The uniaxial tensile behavior of the WMPPs was investigated in terms of the sintering temperature, porosity, wire diameter, and manufacturing technology. The deformation process and the failure mechanism under the tensile press was also discussed based on the appearance of the fractures (SEM figures). The results indicated that the pore size and total size distribution were closely related to the raw material used and the sintering temperature. For the WMPPs prepared by the wire mesh, the pore structures were inerratic and the vast majority of pore size was less than 10 MUm. On the other hand, for the WMPPs that were prepared by wire mesh and powder, the pore structures were irregular and the pore size ranged from 0 MUm-50 MUm. The experimental data showed that the tensile strength of WMPPs is much higher than any other porous metals or metallic foams. Higher sintering temperatures led to coarser joints between wires and resulted in higher tensile strength. The sintering temperature decreased from 1330 degrees C to 1130 degrees C and the tensile strength decreased from 296 MPa to 164 MPa. Lower porosity means that there are more metallurgical joints and metallic frameworks resisting deformation per unit volume. Therefore, lower porosities exhibit higher tensile strength. An increase of porosity from 17.14% to 32.5% led to the decrease of the tensile strength by 90 MPa. The coarser wires led to a bigger contact area between the interconnecting wires, resulting in a stronger sintering neck that exhibited higher tensile strength. The wire diameter increased from 81 MUm to 122 MUm and the tensile strength increased from 296 MPa to 362 MPa. The fracture morphology showed that the wires experience necking deformation and ductile fracture. PMID- 29342130 TI - Thyroid-Stimulating Hormone Levels Are Positively Associated with Insulin Resistance. AB - BACKGROUND It has been reported that overt and mild thyroid dysfunctions are associated with insulin resistance (IR). We performed this retrospective study to evaluate the relationships between thyroid-stimulating hormone (TSH) levels within the reference range and IR. MATERIAL AND METHODS A total of 447 outpatients were enrolled in this study: 298 with type 2 diabetes mellitus and 149 nondiabetic individuals. Based on a cutoff HbA1c value of 7%, diabetic patients were additionally divided into 2 groups: a high-HbA1c group (n=240) and a low-HbA1c group (n=58). The relationships of TSH levels and HOMA-IR were computed using linear regression models. RESULTS TSH levels were positively and linearly associated with HOMA-IR in both the nondiabetic and diabetic groups (r=0.210, p=0.011 and r=0.451, p<0.001), as well as in the high- and low-HbA1c groups (r=0.507, p<0.001 and r=0.259, p=0.048). A better correlation between TSH levels and HOMA-IR was found in the diabetic group and in the high-HbA1c group when compared with the nondiabetic group and the low-HbA1c group, respectively. Linear regression analysis showed that TSH levels were independently associated with HOMA-IR (p=0.034, =0.049 and <0.001 in nondiabetic, low-, and high-HbA1c groups, respectively). CONCLUSIONS Our data suggest that TSH is independently associated with insulin resistance. PMID- 29342131 TI - Survey of plasma proteins in children with progeria pre-therapy and on-therapy with lonafarnib. AB - BackgroundHutchinson-Gilford progeria syndrome (HGPS) is an ultra-rare, fatal, segmental premature aging syndrome caused by the aberrant lamin A protein, progerin. The protein farnesyltransferase inhibitor, lonafarnib, ameliorates some aspects of cardiovascular and bone disease.MethodsWe performed a prospective longitudinal survey of plasma proteins in 24 children with HGPS (an estimated 10% of the world's population at the time) at baseline and on lonafarnib therapy, compared with age- and gender-matched controls using a multi-analyte, microsphere based immunofluorescent assay.ResultsThe mean levels for 23/66 (34.8%) proteins were significantly lower and 7/66 (10.6%) were significantly higher in HGPS samples compared with those in controls (P<=0.05). Six proteins whose concentrations were initially lower normalized with lonafarnib therapy: interleukins 1alpha, 7, and 13, beta-2 microglobulin, C-reactive protein, and myoglobin. Alpha-2 macroglobulin, a protease inhibitor associated with stroke, was elevated at baseline and subsequently normalized with lonafarnib therapy.ConclusionThis is the first study to employ a multi-analyte array platform in HGPS. Novel potential biomarkers identified in this study should be further validated by correlations with clinical disease status, especially proteins associated with cardiovascular disease and those that normalized with lonafarnib therapy. PMID- 29342132 TI - Centimetre-scale electron diffusion in photoactive organic heterostructures. AB - The unique properties of organic semiconductors, such as flexibility and lightness, are increasingly important for information displays, lighting and energy generation. But organics suffer from both static and dynamic disorder, and this can lead to variable-range carrier hopping, which results in notoriously poor electrical properties, with low electron and hole mobilities and correspondingly short charge-diffusion lengths of less than a micrometre. Here we demonstrate a photoactive (light-responsive) organic heterostructure comprising a thin fullerene channel sandwiched between an electron-blocking layer and a blended donor:C70 fullerene heterojunction that generates charges by dissociating excitons. Centimetre-scale diffusion of electrons is observed in the fullerene channel, and this can be fitted with a simple electron diffusion model. Our experiments enable the direct measurement of charge diffusivity in organic semiconductors, which is as high as 0.83 +/- 0.07 square centimetres per second in a C60 channel at room temperature. The high diffusivity of the fullerene combined with the extraordinarily long charge-recombination time yields diffusion lengths of more than 3.5 centimetres, orders of magnitude larger than expected for an organic system. PMID- 29342133 TI - A Myc enhancer cluster regulates normal and leukaemic haematopoietic stem cell hierarchies. AB - The transcription factor Myc is essential for the regulation of haematopoietic stem cells and progenitors and has a critical function in haematopoietic malignancies. Here we show that an evolutionarily conserved region located 1.7 megabases downstream of the Myc gene that has previously been labelled as a 'super-enhancer' is essential for the regulation of Myc expression levels in both normal haematopoietic and leukaemic stem cell hierarchies in mice and humans. Deletion of this region in mice leads to a complete loss of Myc expression in haematopoietic stem cells and progenitors. This caused an accumulation of differentiation-arrested multipotent progenitors and loss of myeloid and B cells, mimicking the phenotype caused by Mx1-Cre-mediated conditional deletion of the Myc gene in haematopoietic stem cells. This super-enhancer comprises multiple enhancer modules with selective activity that recruits a compendium of transcription factors, including GFI1b, RUNX1 and MYB. Analysis of mice carrying deletions of individual enhancer modules suggests that specific Myc expression levels throughout most of the haematopoietic hierarchy are controlled by the combinatorial and additive activity of individual enhancer modules, which collectively function as a 'blood enhancer cluster' (BENC). We show that BENC is also essential for the maintenance of MLL-AF9-driven leukaemia in mice. Furthermore, a BENC module, which controls Myc expression in mouse haematopoietic stem cells and progenitors, shows increased chromatin accessibility in human acute myeloid leukaemia stem cells compared to blasts. This difference correlates with MYC expression and patient outcome. We propose that clusters of enhancers, such as BENC, form highly combinatorial systems that allow precise control of gene expression across normal cellular hierarchies and which also can be hijacked in malignancies. PMID- 29342134 TI - Chromosomal instability drives metastasis through a cytosolic DNA response. AB - Chromosomal instability is a hallmark of cancer that results from ongoing errors in chromosome segregation during mitosis. Although chromosomal instability is a major driver of tumour evolution, its role in metastasis has not been established. Here we show that chromosomal instability promotes metastasis by sustaining a tumour cell-autonomous response to cytosolic DNA. Errors in chromosome segregation create a preponderance of micronuclei whose rupture spills genomic DNA into the cytosol. This leads to the activation of the cGAS-STING (cyclic GMP-AMP synthase-stimulator of interferon genes) cytosolic DNA-sensing pathway and downstream noncanonical NF-kappaB signalling. Genetic suppression of chromosomal instability markedly delays metastasis even in highly aneuploid tumour models, whereas continuous chromosome segregation errors promote cellular invasion and metastasis in a STING-dependent manner. By subverting lethal epithelial responses to cytosolic DNA, chromosomally unstable tumour cells co-opt chronic activation of innate immune pathways to spread to distant organs. PMID- 29342135 TI - Structures of beta-klotho reveal a 'zip code'-like mechanism for endocrine FGF signalling. AB - Canonical fibroblast growth factors (FGFs) activate FGF receptors (FGFRs) through paracrine or autocrine mechanisms in a process that requires cooperation with heparan sulfate proteoglycans, which function as co-receptors for FGFR activation. By contrast, endocrine FGFs (FGF19, FGF21 and FGF23) are circulating hormones that regulate critical metabolic processes in a variety of tissues. FGF19 regulates bile acid synthesis and lipogenesis, whereas FGF21 stimulates insulin sensitivity, energy expenditure and weight loss. Endocrine FGFs signal through FGFRs in a manner that requires klothos, which are cell-surface proteins that possess tandem glycosidase domains. Here we describe the crystal structures of free and ligand-bound beta-klotho extracellular regions that reveal the molecular mechanism that underlies the specificity of FGF21 towards beta-klotho and demonstrate how the FGFR is activated in a klotho-dependent manner. beta Klotho serves as a primary 'zip code'-like receptor that acts as a targeting signal for FGF21, and FGFR functions as a catalytic subunit that mediates intracellular signalling. Our structures also show how the sugar-cutting enzyme glycosidase has evolved to become a specific receptor for hormones that regulate metabolic processes, including the lowering of blood sugar levels. Finally, we describe an agonistic variant of FGF21 with enhanced biological activity and present structural insights into the potential development of therapeutic agents for diseases linked to endocrine FGFs. PMID- 29342136 TI - Clonal evolution mechanisms in NT5C2 mutant-relapsed acute lymphoblastic leukaemia. AB - Relapsed acute lymphoblastic leukaemia (ALL) is associated with resistance to chemotherapy and poor prognosis. Gain-of-function mutations in the 5' nucleotidase, cytosolic II (NT5C2) gene induce resistance to 6-mercaptopurine and are selectively present in relapsed ALL. Yet, the mechanisms involved in NT5C2 mutation-driven clonal evolution during the initiation of leukaemia, disease progression and relapse remain unknown. Here we use a conditional-and-inducible leukaemia model to demonstrate that expression of NT5C2(R367Q), a highly prevalent relapsed-ALL NT5C2 mutation, induces resistance to chemotherapy with 6 mercaptopurine at the cost of impaired leukaemia cell growth and leukaemia initiating cell activity. The loss-of-fitness phenotype of NT5C2+/R367Q mutant cells is associated with excess export of purines to the extracellular space and depletion of the intracellular purine-nucleotide pool. Consequently, blocking guanosine synthesis by inhibition of inosine-5'-monophosphate dehydrogenase (IMPDH) induced increased cytotoxicity against NT5C2-mutant leukaemia lymphoblasts. These results identify the fitness cost of NT5C2 mutation and resistance to chemotherapy as key evolutionary drivers that shape clonal evolution in relapsed ALL and support a role for IMPDH inhibition in the treatment of ALL. PMID- 29342137 TI - Corrigendum: mTORC1-dependent AMD1 regulation sustains polyamine metabolism in prostate cancer. AB - This corrects the article DOI: 10.1038/nature22964. PMID- 29342138 TI - alpha-Klotho is a non-enzymatic molecular scaffold for FGF23 hormone signalling. AB - The ageing suppressor alpha-klotho binds to the fibroblast growth factor receptor (FGFR). This commits FGFR to respond to FGF23, a key hormone in the regulation of mineral ion and vitamin D homeostasis. The role and mechanism of this co-receptor are unknown. Here we present the atomic structure of a 1:1:1 ternary complex that consists of the shed extracellular domain of alpha-klotho, the FGFR1c ligand binding domain, and FGF23. In this complex, alpha-klotho simultaneously tethers FGFR1c by its D3 domain and FGF23 by its C-terminal tail, thus implementing FGF23 FGFR1c proximity and conferring stability. Dimerization of the stabilized ternary complexes and receptor activation remain dependent on the binding of heparan sulfate, a mandatory cofactor of paracrine FGF signalling. The structure of alpha klotho is incompatible with its purported glycosidase activity. Thus, shed alpha klotho functions as an on-demand non-enzymatic scaffold protein that promotes FGF23 signalling. PMID- 29342139 TI - Structure and mutagenesis reveal essential capsid protein interactions for KSHV replication. AB - Kaposi's sarcoma-associated herpesvirus (KSHV) causes Kaposi's sarcoma, a cancer that commonly affects patients with AIDS and which is endemic in sub-Saharan Africa. The KSHV capsid is highly pressurized by its double-stranded DNA genome, as are the capsids of the eight other human herpesviruses. Capsid assembly and genome packaging of herpesviruses are prone to interruption and can therefore be targeted for the structure-guided development of antiviral agents. However, herpesvirus capsids-comprising nearly 3,000 proteins and over 1,300 A in diameter present a formidable challenge to atomic structure determination and functional mapping of molecular interactions. Here we report a 4.2 A resolution structure of the KSHV capsid, determined by electron-counting cryo-electron microscopy, and its atomic model, which contains 46 unique conformers of the major capsid protein (MCP), the smallest capsid protein (SCP) and the triplex proteins Tri1 and Tri2. Our structure and mutagenesis results reveal a groove in the upper domain of the MCP that contains hydrophobic residues that interact with the SCP, which in turn crosslinks with neighbouring MCPs in the same hexon to stabilize the capsid. Multiple levels of MCP-MCP interaction-including six sets of stacked hairpins lining the hexon channel, disulfide bonds across channel and buttress domains in neighbouring MCPs, and an interaction network forged by the N-lasso domain and secured by the dimerization domain-define a robust capsid that is resistant to the pressure exerted by the enclosed genome. The triplexes, each composed of two Tri2 molecules and a Tri1 molecule, anchor to the capsid floor via a Tri1 N anchor to plug holes in the MCP network and rivet the capsid floor. These essential roles of the MCP N-lasso and Tri1 N-anchor are verified by serial truncation mutageneses. Our proof-of-concept demonstration of the use of polypeptides that mimic the smallest capsid protein to inhibit KSHV lytic replication highlights the potential for exploiting the interaction hotspots revealed in our atomic structure to develop antiviral agents. PMID- 29342140 TI - Atomic structure of the eukaryotic intramembrane RAS methyltransferase ICMT. AB - The maturation of RAS GTPases and approximately 200 other cellular CAAX proteins involves three enzymatic steps: addition of a farnesyl or geranylgeranyl prenyl lipid to the cysteine (C) in the C-terminal CAAX motif, proteolytic cleavage of the AAX residues and methylation of the exposed prenylcysteine residue at its terminal carboxylate. This final step is catalysed by isoprenylcysteine carboxyl methyltransferase (ICMT), a eukaryote-specific integral membrane enzyme that resides in the endoplasmic reticulum. ICMT is the only cellular enzyme that is known to methylate prenylcysteine substrates; methylation is important for the biological functions of these substrates, such as the membrane localization and subsequent activity of RAS, prelamin A and RAB. Inhibition of ICMT has potential for combating progeria and cancer. Here we present an X-ray structure of ICMT, in complex with its cofactor, an ordered lipid molecule and a monobody inhibitor, at 2.3 A resolution. The active site spans cytosolic and membrane-exposed regions, indicating distinct entry routes for the cytosolic methyl donor, S-adenosyl-l methionine, and for prenylcysteine substrates, which are associated with the endoplasmic reticulum membrane. The structure suggests how ICMT overcomes the topographical challenge and unfavourable energetics of bringing two reactants that have different cellular localizations together in a membrane environment-a relatively uncharacterized but defining feature of many integral membrane enzymes. PMID- 29342141 TI - Monitoring T cell-dendritic cell interactions in vivo by intercellular enzymatic labelling. AB - Interactions between different cell types are essential for multiple biological processes, including immunity, embryonic development and neuronal signalling. Although the dynamics of cell-cell interactions can be monitored in vivo by intravital microscopy, this approach does not provide any information on the receptors and ligands involved or enable the isolation of interacting cells for downstream analysis. Here we describe a complementary approach that uses bacterial sortase A-mediated cell labelling across synapses of immune cells to identify receptor-ligand interactions between cells in living mice, by generating a signal that can subsequently be detected ex vivo by flow cytometry. We call this approach for the labelling of 'kiss-and-run' interactions between immune cells 'Labelling Immune Partnerships by SorTagging Intercellular Contacts' (LIPSTIC). Using LIPSTIC, we show that interactions between dendritic cells and CD4+ T cells during T-cell priming in vivo occur in two distinct modalities: an early, cognate stage, during which CD40-CD40L interactions occur specifically between T cells and antigen-loaded dendritic cells; and a later, non-cognate stage during which these interactions no longer require prior engagement of the T cell receptor. Therefore, LIPSTIC enables the direct measurement of dynamic cell cell interactions both in vitro and in vivo. Given its flexibility for use with different receptor-ligand pairs and a range of detectable labels, we expect that this approach will be of use to any field of biology requiring quantification of intercellular communication. PMID- 29342142 TI - Midbrain circuits that set locomotor speed and gait selection. AB - Locomotion is a fundamental motor function common to the animal kingdom. It is implemented episodically and adapted to behavioural needs, including exploration, which requires slow locomotion, and escape behaviour, which necessitates faster speeds. The control of these functions originates in brainstem structures, although the neuronal substrate(s) that support them have not yet been elucidated. Here we show in mice that speed and gait selection are controlled by glutamatergic excitatory neurons (GlutNs) segregated in two distinct midbrain nuclei: the cuneiform nucleus (CnF) and the pedunculopontine nucleus (PPN). GlutNs in both of these regions contribute to the control of slower, alternating gait locomotion, whereas only GlutNs in the CnF are able to elicit high-speed, synchronous-gait locomotion. Additionally, both the activation dynamics and the input and output connectivity matrices of GlutNs in the PPN and the CnF support explorative and escape locomotion, respectively. Our results identify two regions in the midbrain that act in conjunction to select context-dependent locomotor behaviours. PMID- 29342144 TI - Erratum: Moving beyond microbiome-wide associations to causal microbe identification. AB - This corrects the article DOI: 10.1038/nature25019. PMID- 29342143 TI - Regulation of embryonic haematopoietic multipotency by EZH1. AB - All haematopoietic cell lineages that circulate in the blood of adult mammals derive from multipotent haematopoietic stem cells (HSCs). By contrast, in the blood of mammalian embryos, lineage-restricted progenitors arise first, independently of HSCs, which only emerge later in gestation. As best defined in the mouse, 'primitive' progenitors first appear in the yolk sac at 7.5 days post coitum. Subsequently, erythroid-myeloid progenitors that express fetal haemoglobin, as well as fetal lymphoid progenitors, develop in the yolk sac and the embryo proper, but these cells lack HSC potential. Ultimately, 'definitive' HSCs with long-term, multilineage potential and the ability to engraft irradiated adults emerge at 10.5 days post-coitum from arterial endothelium in the aorta gonad-mesonephros and other haemogenic vasculature. The molecular mechanisms of this reverse progression of haematopoietic ontogeny remain unexplained. We hypothesized that the definitive haematopoietic program might be actively repressed in early embryogenesis through epigenetic silencing, and that alleviating this repression would elicit multipotency in otherwise lineage restricted haematopoietic progenitors. Here we show that reduced expression of the Polycomb group protein EZH1 enhances multi-lymphoid output from human pluripotent stem cells. In addition, Ezh1 deficiency in mouse embryos results in precocious emergence of functional definitive HSCs in vivo. Thus, we identify EZH1 as a repressor of haematopoietic multipotency in the early mammalian embryo. PMID- 29342145 TI - The gram-negative bacterial periplasm: Size matters. AB - Gram-negative bacteria are surrounded by two membrane bilayers separated by a space termed the periplasm. The periplasm is a multipurpose compartment separate from the cytoplasm whose distinct reducing environment allows more efficient and diverse mechanisms of protein oxidation, folding, and quality control. The periplasm also contains structural elements and important environmental sensing modules, and it allows complex nanomachines to span the cell envelope. Recent work indicates that the size or intermembrane distance of the periplasm is controlled by periplasmic lipoproteins that anchor the outer membrane to the periplasmic peptidoglycan polymer. This periplasm intermembrane distance is critical for sensing outer membrane damage and dictates length of the flagellar periplasmic rotor, which controls motility. These exciting results resolve longstanding debates about whether the periplasmic distance has a biological function and raise the possibility that the mechanisms for maintenance of periplasmic size could be exploited for antibiotic development. PMID- 29342146 TI - A theory of how active behavior stabilises neural activity: Neural gain modulation by closed-loop environmental feedback. AB - During active behaviours like running, swimming, whisking or sniffing, motor actions shape sensory input and sensory percepts guide future motor commands. Ongoing cycles of sensory and motor processing constitute a closed-loop feedback system which is central to motor control and, it has been argued, for perceptual processes. This closed-loop feedback is mediated by brainwide neural circuits but how the presence of feedback signals impacts on the dynamics and function of neurons is not well understood. Here we present a simple theory suggesting that closed-loop feedback between the brain/body/environment can modulate neural gain and, consequently, change endogenous neural fluctuations and responses to sensory input. We support this theory with modeling and data analysis in two vertebrate systems. First, in a model of rodent whisking we show that negative feedback mediated by whisking vibrissa can suppress coherent neural fluctuations and neural responses to sensory input in the barrel cortex. We argue this suppression provides an appealing account of a brain state transition (a marked change in global brain activity) coincident with the onset of whisking in rodents. Moreover, this mechanism suggests a novel signal detection mechanism that selectively accentuates active, rather than passive, whisker touch signals. This mechanism is consistent with a predictive coding strategy that is sensitive to the consequences of motor actions rather than the difference between the predicted and actual sensory input. We further support the theory by re-analysing previously published two-photon data recorded in zebrafish larvae performing closed-loop optomotor behaviour in a virtual swim simulator. We show, as predicted by this theory, that the degree to which each cell contributes in linking sensory and motor signals well explains how much its neural fluctuations are suppressed by closed-loop optomotor behaviour. More generally we argue that our results demonstrate the dependence of neural fluctuations, across the brain, on closed-loop brain/body/environment interactions strongly supporting the idea that brain function cannot be fully understood through open-loop approaches alone. PMID- 29342147 TI - Missed opportunities: Do states require screening of children for health conditions that interfere with learning? AB - METHODS: Investigators reviewed websites of state departments of health and education, and legislation for all 50 states and DC. For states with mandated screenings and a required form, investigators applied structured analysis to assess HBL inclusion. RESULTS: No state mandated that schools require screening for all 7 HBLs. Less than half (49%) required comprehensive school health examinations and only 12 states plus DC required a specific form. Of these, 12 of the forms required documentation of vision screening, 11 of hearing screening, and 12 of dental screening. Ten forms asked about asthma and 9 required documentation of lead testing. Seven asked about general well-being, emotional problems, or mental health. None addressed hunger. When including states without comprehensive school health examination requirements, the most commonly required HBL screenings were for vision (80% of states; includes DC), hearing (75% of states; includes DC) and dental (24% of state; includes DC). CONCLUSION: The lack of state mandated requirements for regular student health screening represents a missed opportunity to identify children with HBLs. Without state mandates, accompanying comprehensive forms, and protocols, children continue to be at risk of untreated health conditions that can undermine their success in school. PMID- 29342148 TI - A strong summer phytoplankton bloom southeast of Vietnam in 2007, a transitional year from El Nino to La Nina. AB - Summer upwelling occurs frequently off the southeast Vietnam coast in the western South China Sea (SCS), where summer phytoplankton blooms generally appear during June-August. In this study, we investigate inter-annual variation of Ekman pumping and offshore transport, and its modulation on summer blooms southeast of Vietnam. The results indicate that there are low intensities of summer blooms in El Nino years, under higher sea surface temperatures (SST) and weaker winds. However, a different pattern of monthly chlorophyll a (Chl-a) blooms occurred in summer of 2007, a transitional stage from El Nino to La Nina, with weak (strong) wind and high (low) SST before (after) early July. There is a weak phytoplankton bloom before July 2007 and a strong phytoplankton bloom after July 2007. The abrupt change in the wind intensity may enhance the upwelling associated with Ekman pumping and offshore Ekman transport, bringing more high-nutrient water into the upper layer from the subsurface, and thus leading to an evident Chl-a bloom in the region. PMID- 29342149 TI - Low expression of IL-18 and IL-18 receptor in human skeletal muscle is associated with systemic and intramuscular lipid metabolism-Role of HIV lipodystrophy. AB - INTRODUCTION: Interleukin (IL)-18 is involved in regulation of lipid and glucose metabolism. Mice lacking whole-body IL-18 signalling are prone to develop weight gain and insulin resistance, a phenotype which is associated with impaired fat oxidation and ectopic skeletal muscle lipid deposition. IL-18 mRNA is expressed in human skeletal muscle but a role for IL-18 in muscle has not been identified. Patients with HIV-infection and lipodystrophy (LD) are characterized by lipid and glucose disturbances and increased levels of circulating IL-18. We hypothesized that skeletal muscle IL-18 and IL-18 receptor (R) expression would be altered in patients with HIV-lipodystrophy. DESIGN AND METHODS: Twenty-three HIV-infected patients with LD and 15 age-matched healthy controls were included in a cross sectional study. Biopsies from the vastus lateralis muscle were obtained and IL 18 and IL-18R mRNA expression were measured by real-time PCR and sphingolipids (ceramides, sphingosine, sphingosine-1-Phosphate, sphinganine) were measured by HPLC. Insulin resistance was assessed by HOMA and the insulin response during an OGTT. RESULTS: Patients with HIV-LD had a 60% and 54% lower level of muscular IL 18 and IL-18R mRNA expression, respectively, compared to age-matched healthy controls. Patients with HIV-LD had a trend towards increased levels of ceramide (18.3+/-4.7 versus 14.8+/-3.0,p = 0.06) and sphingosine (0.41+/-0.13 versus 0.32+/-0.07, and lower level of sphinganine (p = 0.06). Low levels of muscle IL 18 mRNA correlated to high levels of ceramides (r = -0.31, p = 0.038) and sphingosine-1P (r = -0.29, p = 0.046) in skeletal muscle, whereas such a correlation was not found in healthy controls. Low expression of IL-18 mRNA in skeletal muscle correlated to elevated concentration of circulating triglycerides (Rp = -0.73, p<0.0001). Neither muscle expression of IL-18 mRNA or ceramide correlated to parameters of insulin resistance. CONCLUSION: IL-18 (mRNA) in skeletal muscle appears to be involved in the regulation of intramuscular lipid metabolism and hypertriglyceridemia. PMID- 29342150 TI - In vivo osteoconductivity of surface modified Ti-29Nb-13Ta-4.6Zr alloy with low dissolution of toxic trace elements. AB - Simulated Body Fluid (SBF) has served as a useful standard to check the bioactivity of implant materials for years. However, it is not perfectly able to imitate human serum; sometimes disparities between the SBF test and animal test were confirmed. Therefore, to ensure the reliability of the results of the SBF test obtained from our previous study, an animal study was performed to check osteoconductivity of surface modified implant materials. Three types of solution processes, hydrothermal (H), electrochemical (E), and hydrothermal electrochemical (HE), were performed on the Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) to improve its bioactivity, and their bioactivities were measured in vivo using bone implant contacts (BICs). BICs of the HE- and H-treated samples were significantly higher than that of the control. Metal ion diffusion towards the bone was also evaluated to examine the adverse effect of metal ions. No metal ion diffusion was observed, indicating the safety of our solution processed implant materials. PMID- 29342151 TI - CD8 signaling in microglia/macrophage M1 polarization in a rat model of cerebral ischemia. AB - Classical or M1 activity of microglia/macrophages has been described in several neurodegenerative and brain inflammatory conditions and has also been linked to expansion of ischemic injury in post-stroke brain. While different pathways of M1 polarization have been suggested to occur in the post-stroke brain, the precise underlying mechanisms remain undefined. Using a transient middle cerebral artery occlusion (MCAO) rat model, we showed a progressive M2 to M1 polarization in the perilesional brain region with M1 cells becoming one of the dominant subsets by day 4 post-stroke. Comparing key receptors involved in M1 polarization (CD8, IFNgammaR, Clec4, FcgammaR, TLR3 and TLR4) and their signal transducers (Syk, Stat1, Irf3, and Traf6) at the day 4 time point, we showed a strong upregulation of CD8 along with SYK transducer in dissected perilesional brain tissue. We further showed that CD8 expression in the post-stroke brain was associated with activated (CD68+) macrophages and that progressive accumulation of CD8+CD68+ cells in the post-stroke brain coincided with increased iNOS (M1 marker) and reduced Arg1 (M2 marker) expression on these cells. In vitro ligand-based stimulation of the CD8 receptor caused increased iNOS expression and an enhanced capacity to phagocytose E. coli particles; and interestingly, CD8 stimulation was also able to repolarize IL4-treated M2 cells to an M1 phenotype. Our data suggest that increased CD8 signaling in the post-stroke brain is primarily associated with microglia/macrophages and can independently drive M1 polarization, and that modulation of CD8 signaling could be a potential target to limit secondary post stroke brain damage. PMID- 29342152 TI - Do nursery habitats provide shelter from flow for juvenile fish? AB - Juvenile fish nurseries are an essential life stage requirement for the maintenance of many fish populations. With many inshore habitats globally in decline, optimising habitat management by increasing our understanding of the relationship between juvenile fish and nursery habitats may be a prudent approach. Previous research on post-settlement snapper (Chrysophrys auratus) has suggested that structure may provide a water flow refuge, allowing snapper to access high water flow sites that will also have a high flux of their pelagic prey. We investigated this hypothesis by describing how Artificial Seagrass Units (ASUs) modified water flow while also using a multi-camera set up to quantify snapper position in relation to this water flow environment. Horizontal water flow was reduced on the down-current side of ASUs, but only at the height of the seagrass canopy. While the highest abundance of snapper did occur down-current of the ASUs, many snapper also occupied other locations or were too high in the water column to receive any refuge from water flow. The proportion of snapper within the water column was potentially driven by strategy to access zooplankton prey, being higher on the up-current side of ASUs and on flood tides. It is possible that post-settlement snapper alternate position to provide opportunities for both feeding and flow refuging. An alternative explanation relates to an observed interaction between post-settlement snapper and a predator, which demonstrated that snapper can utilise habitat structure when threatened. The nature of this relationship, and its overall importance in determining the value of nursery habitats to post-settlement snapper remains an elusive next step. PMID- 29342153 TI - The impact of optic nerve and related characteristics on disc area measurements derived from different imaging techniques. AB - PURPOSE: Optic nerve head (ONH) assessment and its interpretation in healthy patients and those with glaucoma remains a pivotal topic specifically considering rapid advancements in imaging technologies. We undertook a large-scale, mixed cohort, comparative study to assess the correlation of optic disc measurements between different imaging modalities and investigated the impact of patient and disc associated parameters. METHODS: ONH sizes were obtained from one randomly selected eye of each of 209 patients using stereophotography, confocal scanning laser ophthalmoscopy and two different optical coherence tomographers (OCT). Patient related data, glaucoma status and optic disc variables, specifically oblique insertion, torsion, presence of beta PPA and spherical equivalent were recorded. Measurements between imaging modalities were analysed using Pearson correlation, linear regression analysis and Blend-Altman plots. Individual variables were compared applying multivariate regression analysis, ANOVA and chi square statistics was used to determine correlations between patient and clinical characteristics. RESULTS: Absolute measurements significantly differed between imaging modalities generally producing smaller measurements for OCT derived measurements of Bruch's membrane opening (BMO). Pairwise correlations between imaging modalities were between 0.83 and 0.93 for discs without myopia, oblique insertion, or beta PPA. These features impacted on measurements for individual modalities and consequently contributed to inconsistencies and variability. CONCLUSION: In comparison to planimetry, OCT derived BMO measurements are more variable in the presence of oblique insertion, beta PPA or magnification errors due to myopia. Impact of these factors, however, differs between instruments and needs to be considered to accurately interpret optic disc features in particular within the context of glaucoma diagnosis. PMID- 29342154 TI - Three unrelated and unexpected amino acids determine the susceptibility of the interface cysteine to a sulfhydryl reagent in the triosephosphate isomerases of two trypanosomes. AB - Proteins with great sequence similarity usually have similar structure, function and other physicochemical properties. But in many cases, one or more of the physicochemical or functional characteristics differ, sometimes very considerably, among these homologous proteins. To better understand how critical amino acids determine quantitative properties of function in proteins, the responsible residues must be located and identified. This can be difficult to achieve, particularly in cases where multiple amino acids are involved. In this work, two triosephosphate isomerases with very high similarity from two related human parasites were used to address one such problem. We demonstrate that a seventy-fold difference in the reactivity of an interface cysteine to the sulfhydryl reagent methylmethane sulfonate in these two enzymes depends on three amino acids located far away from this critical residue and which could not have been predicted using other current methods. Starting from previous observations with chimeric proteins involving these two triosephosphate isomerases, we developed a strategy involving additive mutant enzymes and selected site directed mutants to locate and identify the three amino acids. These three residues seem to induce changes in the interface cysteine in reactivity by increasing (or decreasing) its apparent pKa. Some enzymes with four to seven mutations also exhibited altered reactivity. This study completes a strategy for identifying key residues in the sequences of proteins that can have applications in future protein structure-function studies. PMID- 29342155 TI - Nanoscopic X-ray fluorescence imaging and quantification of intracellular key elements in cryofrozen Friedreich's ataxia fibroblasts. AB - Synchrotron radiation based nanoscopic X-ray fluorescence (SR nano-XRF) analysis can visualize trace level elemental distribution in a fully quantitative manner within single cells. However, in-air XRF analysis requires chemical fixation modifying the cell's chemical composition. Here, we describe first nanoscopic XRF analysis upon cryogenically frozen (-150 degrees C) fibroblasts at the ID16A-NI 'Nano-imaging' end-station located at the European Synchrotron Radiation Facility (ESRF) in Grenoble (France). Fibroblast cells were obtained from skin biopsies from control and Friedreich's ataxia (FRDA) patients. FRDA is an autosomal recessive disorder with dysregulation of iron metabolism as a key feature. By means of the X-ray Fundamental Parameter (FP) method, including absorption correction of the ice layer deposited onto the fibroblasts, background-corrected mass fraction elemental maps of P, S, Cl, K, Ca, Fe and Zn of entire cryofrozen human fibroblasts were obtained. Despite the presence of diffracting microcrystals in the vitreous ice matrix and minor sample radiation damage effects, clusters of iron-rich hot-spots with similar mass fractions were found in the cytoplasm of both control and FRDA fibroblasts. Interestingly, no significant difference in the mean iron concentration was found in the cytoplasm of FRDA fibroblasts, but a significant decrease in zinc concentration. This finding might underscore metal dysregulation, beyond iron, in cells derived from FRDA patients. In conclusion, although currently having slightly increased limits of detection (LODs) compared to non-cryogenic mode, SR based nanoscopic XRF under cryogenic sample conditions largely obliterates the debate on chemical sample preservation and provides a unique tool for trace level elemental imaging in single cells close to their native state with a superior spatial resolution of 20 nm. PMID- 29342156 TI - Specialized attachment structure of the fish pathogenic oomycete Saprolegnia parasitica. AB - The secondary cysts of the fish pathogen oomycete Saprolegnia parasitica possess bundles of long hooked hairs that are characteristic to this economically important pathogenic species. Few studies have been carried out on elucidating their specific role in the S. parasitica life cycle and the role they may have in the infection process. We show here their function by employing several strategies that focus on descriptive, developmental and predictive approaches. The strength of attachment of the secondary cysts of this pathogen was compared to other closely related species where bundles of long hooked hairs are absent. We found that the attachment of the S. parasitica cysts was around three times stronger than that of other species. The time sequence and influence of selected factors on morphology and the number of the bundles of long hooked hairs conducted by scanning electron microscopy study revealed that these are dynamic structures. They are deployed early after encystment, i.e., within 30 sec of zoospore encystment, and the length, but not the number, of the bundles steadily increased over the encystment period. We also observed that the number and length of the bundles was influenced by the type of substrate and encystment treatment applied, suggesting that these structures can adapt to different substrates (glass or fish scales) and can be modulated by different signals (i.e., protein media, 50 mM CaCl2 concentrations, carbon particles). Immunolocalization studies evidenced the presence of an adhesive extracellular matrix. The bioinformatic analyses of the S. parasitica secreted proteins showed that there is a high expression of genes encoding domains of putative proteins related to the attachment process and cell adhesion (fibronectin and thrombospondin) coinciding with the deployment stage of the bundles of long hooked hairs formation. This suggests that the bundles are structures that might contribute to the adhesion of the cysts to the host because they are composed of these adhesive proteins and/or by increasing the surface of attachment of this extracellular matrix. PMID- 29342157 TI - Timing of maternal death: Levels, trends, and ecological correlates using sibling data from 34 sub-Saharan African countries. AB - Millennium Development Goal 5 has not been universally achieved, particularly in sub-Saharan Africa. Understanding whether maternal deaths occur during pregnancy, childbirth, or puerperium is important to effectively plan maternal health programs and allocate resources. Our main research objectives are to (1) describe the proportions and rates of mortality for the antepartum, intrapartum, and postpartum periods; (2) document how these trends vary by sub-region; and (3) investigate ecological correlations between these rates and maternal care interventions. We used data from the Demographic and Health Survey program, which comprises 84 surveys from 34 sub-Saharan African countries conducted between 1990 and 2014. We calculated age-standardized maternal mortality rates and time specific maternal mortality rates and proportions, and we assessed correlations with maternal care coverage. We found high levels of maternal mortality in all three periods. Time-specific maternal mortality rates varied by country and region, with some showing an orderly decline in all three periods and others exhibiting alarming increases in antepartum and postpartum mortality. Ecological analysis showed that antenatal care coverage was significantly associated with low antepartum mortality, whereas the presence of a skilled attendant at childbirth was significantly associated with low postpartum mortality. In sub Saharan Africa, maternal deaths occur at high rates in all three risk periods, and vary substantially by country and region. The provision of maternal care is a predictor of time-specific maternal mortality. These results confirm the need for country-specific interventions during the continuum of care to achieve the global commitment to eliminating preventable maternal mortality. PMID- 29342158 TI - Real-time community detection in full social networks on a laptop. AB - For a broad range of research and practical applications it is important to understand the allegiances, communities and structure of key players in society. One promising direction towards extracting this information is to exploit the rich relational data in digital social networks (the social graph). As global social networks (e.g., Facebook and Twitter) are very large, most approaches make use of distributed computing systems for this purpose. Distributing graph processing requires solving many difficult engineering problems, which has lead some researchers to look at single-machine solutions that are faster and easier to maintain. In this article, we present an approach for analyzing full social networks on a standard laptop, allowing for interactive exploration of the communities in the locality of a set of user specified query vertices. The key idea is that the aggregate actions of large numbers of users can be compressed into a data structure that encapsulates the edge weights between vertices in a derived graph. Local communities can be constructed by selecting vertices that are connected to the query vertices with high edge weights in the derived graph. This compression is robust to noise and allows for interactive queries of local communities in real-time, which we define to be less than the average human reaction time of 0.25s. We achieve single-machine real-time performance by compressing the neighborhood of each vertex using minhash signatures and facilitate rapid queries through Locality Sensitive Hashing. These techniques reduce query times from hours using industrial desktop machines operating on the full graph to milliseconds on standard laptops. Our method allows exploration of strongly associated regions (i.e., communities) of large graphs in real-time on a laptop. It has been deployed in software that is actively used by social network analysts and offers another channel for media owners to monetize their data, helping them to continue to provide free services that are valued by billions of people globally. PMID- 29342159 TI - Prediction of novel target genes and pathways involved in bevacizumab-resistant colorectal cancer. AB - Bevacizumab combined with cytotoxic chemotherapy is the backbone of metastatic colorectal cancer (mCRC) therapy; however, its treatment efficacy is hampered by therapeutic resistance. Therefore, understanding the mechanisms underlying bevacizumab resistance is crucial to increasing the therapeutic efficacy of bevacizumab. The Gene Expression Omnibus (GEO) database (dataset, GSE86525) was used to identify the key genes and pathways involved in bevacizumab-resistant mCRC. The GEO2R web tool was used to identify differentially expressed genes (DEGs). Functional and pathway enrichment analyses of the DEGs were performed using the Database for Annotation, Visualization, and Integrated Discovery(DAVID). Protein-protein interaction (PPI) networks were established using the Search Tool for the Retrieval of Interacting Genes/Proteins database(STRING) and visualized using Cytoscape software. A total of 124 DEGs were obtained, 57 of which upregulated and 67 were downregulated. PPI network analysis showed that seven upregulated genes and nine downregulated genes exhibited high PPI degrees. In the functional enrichment, the DEGs were mainly enriched in negative regulation of phosphate metabolic process and positive regulation of cell cycle process gene ontologies (GOs); the enriched pathways were the phosphoinositide 3-kinase-serine/threonine kinase signaling pathway, bladder cancer, and microRNAs in cancer. Cyclin-dependent kinase inhibitor 1A(CDKN1A), toll-like receptor 4 (TLR4), CD19 molecule (CD19), breast cancer 1, early onset (BRCA1), platelet-derived growth factor subunit A (PDGFA), and matrix metallopeptidase 1 (MMP1) were the DEGs involved in the pathways and the PPIs. The clinical validation of the DEGs in mCRC (TNM clinical stages 3 and 4) revealed that high PDGFA expression levels were associated with poor overall survival, whereas high BRCA1 and MMP1 expression levels were associated with favorable progress free survival(PFS). The identified genes and pathways can be potential targets and predictors of therapeutic resistance and prognosis in bevacizumab-treated patients with mCRC. PMID- 29342160 TI - Expression of the lux genes in Streptococcus pneumoniae modulates pilus expression and virulence. AB - Bioluminescence has been harnessed for use in bacterial reporter systems and for in vivo imaging of infection in animal models. Strain Xen35, a bioluminescent derivative of Streptococcus pneumoniae serotype 4 strain TIGR4 was previously constructed for use for in vivo imaging of infections in animal models. We have shown that strain Xen35 is less virulent than its parent TIGR4 and that this is associated with the expression of the genes for bioluminescence. The expression of the luxA-E genes in the pneumococcus reduces virulence and down regulates the expression of the pneumococcal pilus. PMID- 29342161 TI - Association between circulating levels of sex steroid hormones and esophageal adenocarcinoma in the FINBAR Study. AB - BACKGROUND: Esophageal adenocarcinoma (EA) is characterized by a strong male predominance. Sex steroid hormones have been hypothesized to underlie this sex disparity, but no population-based study to date has examined this potential association. METHODS: Using mass spectrometry and ELISA, we quantitated sex steroid hormones and sex hormone binding globulin, respectively, in plasma from males- 172 EA cases and 185 controls-within the Factors Influencing the Barrett/Adenocarcinoma Relationship (FINBAR) Study, a case-control investigation conducted in Northern Ireland and Ireland. Multivariable adjusted logistic regression was used to calculate odds ratios (ORs) and 95% confidence intervals (CIs) for associations between circulating hormones and EA. RESULTS: Higher androgen:estrogen ratio metrics were associated with increased odds of EA (e.g., testosterone:estradiol ratio ORQ4 v. Q1 = 2.58, 95%CI = 1.23-5.43; Ptrend = 0.009). All estrogens and androgens were associated with significant decreased odds of EA. When restricted to individuals with minimal to no decrease in body mass index, the size of association for the androgen:estrogen ratio was not greatly altered. CONCLUSIONS: This first study of sex steroid hormones and EA provides tentative evidence that androgen:estrogen balance may be a factor related to EA. Replication of these findings in prospective studies is needed to enhance confidence in the causality of this effect. PMID- 29342162 TI - Comparison of diagnostic methods to detect Histoplasma capsulatum in serum and blood samples from AIDS patients. AB - BACKGROUND: Although early and rapid detection of histoplasmosis is essential to prevent morbidity and mortality, few diagnostic tools are available in resource limited areas, especially where it is endemic and HIV/AIDS is also epidemic. Thus, we compared conventional and molecular methods to detect Histoplasma capsulatum in sera and blood from HIV/AIDS patients. METHODOLOGY: We collected a total of 40 samples from control volunteers and patients suspected of histoplasmosis, some of whom were also infected with other pathogens. Samples were then analyzed by mycological, serological, and molecular methods, and stratified as histoplasmostic with (group I) or without AIDS (group II), uninfected (group III), and infected with HIV and other pathogens only (group IV). All patients were receiving treatment for histoplasmosis and other infections at the time of sample collection. RESULTS: Comparison of conventional methods with nested PCR using primers against H. capsulatum 18S rRNA (HC18S), 5.8S rRNA ITS (HC5.8S-ITS), and a 100 kDa protein (HC100) revealed that sensitivity against sera was highest for PCR with HC5.8S-ITS, followed by immunoblotting, double immunodiffusion, PCR with HC18S, and PCR with HC100. Specificity was equally high for double immunodiffusion, immunoblotting and PCR with HC100, followed for PCR with HC18S and HC5.8-ITS. Against blood, sensitivity was highest for PCR with HC5.8S-ITS, followed by PCR with HC18S, Giemsa staining, and PCR with HC100. Specificity was highest for Giemsa staining and PCR with HC100, followed by PCR with HC18S and HC5.8S-ITS. PCR was less efficient in patients with immunodeficiency due to HIV/AIDS and/or related diseases. CONCLUSION: Molecular techniques may detect histoplasmosis even in cases with negative serology and mycology, potentially enabling early diagnosis. PMID- 29342163 TI - Doxylamine-pyridoxine for nausea and vomiting of pregnancy randomized placebo controlled trial: Prespecified analyses and reanalysis. AB - BACKGROUND: Doxylamine-pyridoxine is recommended as a first line treatment for nausea and vomiting during pregnancy and it is commonly prescribed. We re analysed the findings of a previously reported superiority trial of doxylamine pyridoxine for the treatment of nausea and vomiting during pregnancy using the clinical study report obtained from Health Canada. METHODS AND FINDINGS: We re analysed individual level data for a parallel arm randomized controlled trial that was conducted in six outpatient obstetrical practices in the United States. Pregnant women between 7 and 14 weeks of gestation with moderate nausea and vomiting of pregnancy symptoms. The active treatment was a tablet containing both doxylamine 10 mg and pyridoxine 10 mg taken between 2 and 4 times per day for 14 days depending on symptoms. The control was an identical placebo tablet taken using the same instructions. The primary outcome measure was improvement in nausea and vomiting of symptoms scores using the 13-point pregnancy unique quantification of emesis scale between baseline and 14 days using an ANCOVA. 140 participants were randomized into each group. Data for 131 active treatment participants and 125 control participants were analysed. On the final day of the trial, 101 active treatment participants and 86 control participants provided primary outcome measures. There was greater improvement in symptoms scores with doxylamine-pyridoxine compared with placebo (0.73 points; 95% CI 0.21 to 1.25) when last observation carried forward imputation was used for missing data but the difference is not statistically significant using other approaches to missing data (e.g. 0.38; 95% CI -0.08 to 0.84 using complete data). CONCLUSIONS: There is a trend towards efficacy for nausea and vomiting symptoms with doxylamine pyridoxine compared with placebo but the statistical significance of the difference depends on the method of handling missing data and the magnitude of the difference suggests that there is no clinically important benefit employing the prespecified minimal clinically important difference or "expected difference" of 3 points. TRIAL REGISTRATION: Clinical Trial NCT00614445. PMID- 29342164 TI - Environmental dust inhalation in the European badger (Meles meles): Systemic distribution of silica-laden macrophages, pathological changes, and association with Mycobacterium bovis infection status. AB - Chronic inhalation of crystalline silica and silicates may lead to severe lung disease in humans, termed silicosis. The disease is an occupational health concern in miners and related professions worldwide. Silicosis is also a strong risk factor for tuberculosis in humans. Due to its subterranean lifestyle, the European badger (Meles meles) is continuously exposed to environmental dust, while this species is also susceptible to tuberculosis, caused by Mycobacterium bovis. To date, a thorough investigation of mineral dust retention and its possible implication as a risk factor for mycobacterial infection in badgers has not been performed. The aims of this retrospective histological study were (1) to describe the systemic tissue distribution of silica-laden macrophages (SLMs) in badgers; (2) to compare the amount of SLMs in tissues of badgers of differing M. bovis infection status, pulmonary SLM burden and age; and (3) to assess whether inflammation was associated with SLMs. We assessed lung, lymph nodes, liver and spleen of 60 wild-caught badgers of known M. bovis infection status for the presence of SLMs using polarizing light microscopy. SLMs were consistently present within the lungs and were widely distributed throughout the lymphatic system. No inflammatory reaction to SLMs, as occurs in human silicosis, was observed in any tissue. Distribution and amount of SLMs were similar between M. bovis positive and negative badgers, and we were not able to show an association between the amount of SLMs and M. bovis infection status. The amount of SLMs within intra- and extrathoracic lymph nodes was positively associated with the amount of pulmonary SLMs, and with age. This is the first report of substantial and systemic tissue retention of mineral dust particles in a mammalian species lacking associated chronic inflammation (i.e. silicosis). We further highlight different pathogenetic mechanisms underlying silicosis and benign SLM accumulations following siliceous dust inhalation. PMID- 29342165 TI - Increased colon cancer risk after severe Salmonella infection. AB - BACKGROUND: Colon cancer constitutes one of the most frequent malignancies. Previous studies showed that Salmonella manipulates host cell signaling pathways and that Salmonella Typhimurium infection facilitates colon cancer development in genetically predisposed mice. This epidemiological study examined whether severe Salmonella infection, usually acquired from contaminated food, is associated with increased colon cancer risk in humans. METHODS AND FINDINGS: We performed a nationwide registry-based study to assess colon cancer risk after diagnosed Salmonella infection. National infectious disease surveillance records (1999 2015) for Dutch residents aged >=20 years when diagnosed with salmonellosis (n = 14,264) were linked to the Netherlands Cancer Registry. Salmonella-infected patients were laboratory-confirmed under medical consultation after 1-2 weeks of illness. These datasets also contained information on Salmonella serovar and type of infection. Colon cancer risk (overall and per colon subsite) among patients with a diagnosed Salmonella infection was compared with expected colon cancer risk in the general population. Data from the nationwide registry of histo- and cytopathology (PALGA) and Statistics Netherlands (CBS) allowed assessing potential effects of age, gender, latency, socioeconomic status, genetic predisposition, inflammatory bowel disease (IBD), and tumor features. We found that compared to the general population, colon cancer risk was significantly increased (standardized incidence ratio [SIR] 1.54; 95%CI 1.09-2.10) among patients with Salmonella infection diagnosed <60 years of age. Such increased risk concerned specifically the ascending/transverse colon (SIR 2.12; 95%CI 1.38 3.09) after S. Enteritidis infection (SIR 2.97; 95%CI 1.73-4.76). Salmonellosis occurred more frequently among colon cancer patients with pre-infectious IBD, a known risk factor for colon cancer. Colon tumors of patients with a history of Salmonella infection were mostly of low grade. CONCLUSIONS: Patients diagnosed with severe salmonellosis have an increased risk of developing cancer in the ascending/transverse parts of the colon. This risk concerns particularly S. Enteritidis infection, suggesting a contribution of this major foodborne pathogen to colon cancer development. PMID- 29342166 TI - Effects of vitamin D on insulin resistance and myosteatosis in diet-induced obese mice. AB - Epidemiological studies pointed out to a strong association between vitamin D deficiency and type 2 diabetes prevalence. However, the role of vitamin D supplementation in the skeletal muscle, a tissue that play a crucial role in the maintenance of glucose homeostasis, has been scarcely investigated so far. On this basis, this study aimed to evaluate the effect of vitamin D supplementation in a murine model of diet-induced insulin resistance with particular attention to the effects evoked on the skeletal muscle. Male C57BL/6J mice (n = 40) were fed with a control or a High Fat-High Sugar (HFHS) diet for 4 months. Subsets of animals were treated for 2 months with vitamin D (7 MUg.kg-1, i.p. three times/week). HFHS diet induced body weight increase, hyperglycemia and impaired glucose tolerance. HFHS animals showed an impaired insulin signaling and a marked fat accumulation in the skeletal muscle. Vitamin D reduced body weight and improved systemic glucose tolerance. In addition, vitamin D restored the impaired muscle insulin signaling and reverted myosteatosis evoked by the diet. These effects were associated to decreased activation of NF-kappaB and lower levels of TNF-alpha. Consistently, a significantly decreased activation of the SCAP/SREBP lipogenic pathway and lower levels of CML protein adducts and RAGE expression were observed in skeletal muscle of animals treated with vitamin D. Collectively, these data indicate that vitamin D-induced selective inhibition of signaling pathways (including NF-kappaB, SCAP/SREBP and CML/RAGE cascades) within the skeletal muscle significantly contributed to the beneficial effects of vitamin D supplementation against diet-induced metabolic derangements. PMID- 29342167 TI - Effects of ammonium-based ionic liquids and 2,4-dichlorophenol on the phospholipid fatty acid composition of zebrafish embryos. AB - Ionic liquids consisting of a combination of herbicidal anions with a quaternary ammonium cation act as efficient herbicides, which are under consideration to be used in the agriculture. In the present study, we used embryos of the zebrafish (Danio rerio) as a model to assess the toxic potential of ammonium-based ionic liquids for aquatic organisms. As we assumed interference of the partially hydrophobic ionic liquid cation with lipids, we investigated the adaptation response in the lipid composition of the zebrafish embryos, triggered by the ionic compound. Therefore, the impact of ammonium-based ionic liquids with different lengths of the alkyl chain ([C6,C6,C1,C1N][Br], [C8,C8,C1,C1N][Br]) on the phospholipid fatty acid (PLFA) profile of zebrafish embryos up to 72 hours post fertilization (hpf) was examined. Furthermore, the changes in the unsaturation index (UI) of PLFAs, as the sum parameter of membrane fluidity in eukaryotic cells, were presented. The PLFA's UI in the zebrafish embryos upon exposure to quaternary ammonium salts was compared to the UI of the embryos upon exposure to nonionic 2,4-dichlorophenol, which has a similar hydrophobicity but is structurally different to [C8,C8,C1,C1N][Br]. It was shown that for ammonium based ionic liquid precursors non-specific mode of action occurs and the toxic effect on lipid composition of zebrafish embryos can be well predicted based on chemical properties, like hydrophobicity. Furthermore, the changes in PLFAs, expressed by the UI, can be useful to study toxic effects of organic contamination. However, for zebrafish embryos, after ionic liquids and 2,4-DCP exposure, the changes were observed at high lethal concentrations, which caused the incidence of lethality of 30 and 50% of a group of test animals. PMID- 29342168 TI - Reduction in Musca domestica fecundity by dsRNA-mediated gene knockdown. AB - House flies (Musca domestica) are worldwide agricultural pests with estimated control costs at $375 million annually in the U.S. Non-target effects and widespread resistance challenge the efficacy of traditional chemical control. Double stranded RNA (dsRNA) has been suggested as a biopesticide for M. domestica but a phenotypic response due to the induction of the RNAi pathway has not been demonstrated in adults. In this study female house flies were injected with dsRNA targeting actin-5C or ribosomal protein (RP) transcripts RPL26 and RPS6. Ovaries showed highly reduced provisioning and clutch reductions of 94-99% in RP dsRNA treated flies but not in actin-5C or GFP treated flies. Gene expression levels were significantly and specifically reduced in dsRNA injected groups but remained unchanged in the control dsGFP treated group. Furthermore, injections with an Aedes aegypti conspecific dsRNA designed against RPS6 did not impact fecundity, demonstrating species specificity of the RNAi response. Analysis of M. domestica tissues following RPS6 dsRNA injection showed significant reduction of transcript levels in the head, thorax, and abdomen but increased expression in ovarian tissues. This study demonstrates that exogenous dsRNA is specifically effective and has potential efficacy as a highly specific biocontrol intervention in adult house flies. Further work is required to develop effective methods for delivery of dsRNA to adult flies. PMID- 29342169 TI - Interactions between the invasive Burmese python, Python bivittatus Kuhl, and the local mosquito community in Florida, USA. AB - The Burmese python, Python bivittatus Kuhl, is a well-established invasive species in the greater Everglades ecosystem of southern Florida, USA. Most research on its ecological impacts focuses on its role as a predator and its trophic interactions with native vertebrate species, particularly mammals. Beyond predation, there is little known about the ecological interactions between P. bivittatus and native faunal communities. It is likely that established populations of P. bivittatus in southern Florida serve as hosts for native mosquito communities. To test this concept, we used mitochondrial cytochrome c oxidase subunit I DNA barcoding to determine the hosts of blood fed mosquitoes collected at a research facility in northern Florida where captive P. bivittatus and Argentine black and white tegu, Salvator merianae (Dumeril and Bibron), are maintained in outdoor enclosures, accessible to local mosquitoes. We recovered python DNA from the blood meals of three species of Culex mosquitoes: Culex erraticus (Dyar and Knab), Culex quinquefasciatus Say, and Culex pilosus (Dyar and Knab). Culex erraticus conclusively (P = 0.001; Fisher's Exact Test) took more blood meals from P. bivittatus than from any other available host. While the majority of mosquito blood meals in our sample were derived from P. bivittatus, only one was derived from S. merianae. These results demonstrate that local mosquitoes will feed on invasive P. bivittatus, a recently introduced host. If these interactions also occur in southern Florida, P. bivittatus may be involved in the transmission networks of mosquito-vectored pathogens. Our results also illustrate the potential of detecting the presence of P. bivittatus in the field through screening mosquito blood meals for their DNA. PMID- 29342170 TI - Determination of 2,4-Dichlorophenoxyacetic acid (2,4-D) in rat serum for pharmacokinetic studies with a simple HPLC method. AB - 2,4-Dichlorophenoxyacetic acid (2,4-D) is a chlorophenoxy herbicide used worldwide. We describe a high-performance liquid chromatography (HPLC) method with UV detection for the determination of 2,4-D in female and male rat serum. This allows to observe the change of serum 2,4-D concentration in rats with time and its pharmacokinetics characteristics with a simple, rapid, optimized and validated method. The serum samples are pretreated and introduced into the HPLC system. The analytes are separated in a XDB-C18 column with a mobile phase of acetonitrile (solvent A) and 0.02 M ammonium acetate (containing 0.1% formic acid) (solvent B) using a gradient elution at a flow rate of 1.0 mL/min. The wavelength for UV detection was set at 230 nm. Calibration curve for 2,4-D was constructed over a range of 0.1-400 mg/L. The method was successfully applied to study the pharmacokinetics of 2,4-D in rats in this study. After oral administration of 300 mg/kg and 60 mg/kg 2,4-D, the mean Cmax values were 601.9 and 218.4 mg/L, the AUC0->infinity values were 23,722 and 4,127 mg*h/L and the clearance (Cl) were 1.10 and 0.02 L/(h*kg), respectively. The developed method was found to be specific, precise, reproducible and rapid. PMID- 29342171 TI - Health behavior associated with liver enzymes among obese Korean adolescents, 2009-2014. AB - AIMS: Obesity is major risk factor for liver health. This study aimed to clarify whether specific health behaviors were associated with liver function in obese adolescents in Korea. METHODS: Based on national school health examination data from 2009 to 2014, 25,142 obese or overweight students were examined for aspartate transaminase and alanine transaminase levels, and health behaviors. Multiple logistic regression was used to calculate the odds ratio for liver enzyme elevation. RESULTS: Subjects who thought of themselves as "very fat" had a 1.6 times higher odds ratio for liver enzyme elevations than those who thought of themselves as "normal." Those who consumed fast food 3 to 5 times weekly had 1.3 times higher odds ratio (OR = 1.27, 95% confidence interval = 1.05-1.54) for the elevation of ALT than those who did not consume fast food. Those who took sugar sweetened beverage 3 to 5 times weekly had 1.2 times higher odds ratio (OR = 1.24, 95% confidence interval = 1.07-1.42) for the elevation of ALT than those who did not take it. Those who played computer game more than 2 hours a day showed 1.1 times higher odds ratio (OR = 1.10, 95% confidence interval = 1.01 1.21) for the elevation of ALT than those who did not. CONCLUSIONS: Specific food item and its frequency of consumption were identified for the positive and negative association with the elevation of liver enzymes. Self-image of body shape, sleeping time and need of help for alcohol or smoking problems also showed substantial association with the elevation. PMID- 29342172 TI - Driving factors of retention in care among HIV-positive MSM and transwomen in Indonesia: A cross-sectional study. AB - Little is known about the prevalence of and factors that influence retention in HIV-related care among Indonesian men who have sex with men (MSM) and transgender women (transwomen, or waria in Indonesian term). Therefore, we explored the driving factors of retention in care among HIV-positive MSM and waria in Indonesia. This cross-sectional study involved 298 self-reported HIV-positive MSM (n = 165) and waria (n = 133). Participants were recruited using targeted sampling and interviewed using a structured questionnaire. We applied a four-step model building process using multivariable logistic regression to examine how sociodemographic, predisposing, enabling, and reinforcing factors were associated with retention in care. Overall, 78.5% of participants were linked to HIV care within 3 months after diagnosis or earlier, and 66.4% were adequately retained in care (at least one health care visit every three months once a person is diagnosed with HIV). Being on antiretroviral therapy (adjusted odds ratio [AOR] = 6.00; 95% confidence interval [CI]: 2.93-12.3), using the Internet to find HIV related information (AOR = 2.15; 95% CI: 1.00-4.59), and having medical insurance (AOR = 2.84; 95% CI: 1.27-6.34) were associated with adequate retention in care. Involvement with an HIV-related organization was associated negatively with retention in care (AOR = 0.47; 95% CI: 0.24-0.95). Future interventions should increase health insurance coverage and utilize the Internet to help MSM and waria to remain in HIV-related care, thereby assisting them in achieving viral suppression. PMID- 29342173 TI - Hormone induced differential transcriptome analysis of Sertoli cells during postnatal maturation of rat testes. AB - Sertoli cells (Sc) are unique somatic cells of testis that are the target of both FSH and testosterone (T) and regulate spermatogenesis. Although Sc of neonatal rat testes are exposed to high levels of FSH and T, robust differentiation of spermatogonial cells becomes conspicuous only after 11-days of postnatal age. We have demonstrated earlier that a developmental switch in terms of hormonal responsiveness occurs in rat Sc at around 12 days of postnatal age during the rapid transition of spermatogonia A to B. Therefore, such "functional maturation" of Sc, during pubertal development becomes prerequisite for the onset of spermatogenesis. However, a conspicuous difference in robust hormone (both T and FSH) induced gene expression during the different phases of Sc maturation restricts our understanding about molecular events necessary for the spermatogenic onset and maintenance. Here, using microarray technology, we for the first time have compared the differential transcriptional profile of Sc isolated and cultured from immature (5 days old), maturing (12 days old) and mature (60 days old) rat testes. Our data revealed that immature Sc express genes involved in cellular growth, metabolism, chemokines, cell division, MAPK and Wnt pathways, while mature Sc are more specialized expressing genes involved in glucose metabolism, phagocytosis, insulin signaling and cytoskeleton structuring. Taken together, this differential transcriptome data provide an important resource to reveal the molecular network of Sc maturation which is necessary to govern male germ cell differentiation, hence, will improve our current understanding of the etiology of some forms of idiopathic male infertility. PMID- 29342174 TI - Preference evaluation of ground beef by untrained subjects with three levels of finely textured beef. AB - After receiving bad publicity in 2012 and being removed from many ground beef products, finely textured beef (referred to as 'pink slime' by some) is making a comeback. Some of its proponents argue that consumers prefer ground beef containing finely textured beef, but no objective scientific party has tested this claim-that is the purpose of the present study. Over 200 untrained subjects participated in a sensory analysis in which they tasted one ground beef sample with no finely textured beef, another with 15% finely textured beef (by weight), and another with more than 15%. Beef with 15% finely textured beef has an improved juiciness (p < 0.01) and tenderness (p < 0.01) quality. However, subjects rate the flavor-liking and overall likeability the same regardless of the finely textured beef content. Moreover, when the three beef types are consumed as part of a slider (small hamburger), subjects are indifferent to the level of finely textured beef. PMID- 29342176 TI - The "handedness" of language: Directional symmetry breaking of sign usage in words. AB - Language, which allows complex ideas to be communicated through symbolic sequences, is a characteristic feature of our species and manifested in a multitude of forms. Using large written corpora for many different languages and scripts, we show that the occurrence probability distributions of signs at the left and right ends of words have a distinct heterogeneous nature. Characterizing this asymmetry using quantitative inequality measures, viz. information entropy and the Gini index, we show that the beginning of a word is less restrictive in sign usage than the end. This property is not simply attributable to the use of common affixes as it is seen even when only word roots are considered. We use the existence of this asymmetry to infer the direction of writing in undeciphered inscriptions that agrees with the archaeological evidence. Unlike traditional investigations of phonotactic constraints which focus on language-specific patterns, our study reveals a property valid across languages and writing systems. As both language and writing are unique aspects of our species, this universal signature may reflect an innate feature of the human cognitive phenomenon. PMID- 29342175 TI - Immunocontraceptive target repertoire defined by systematic identification of sperm membrane alloantigens in a single species. AB - Sperm competence in animal fertilization requires the collective activities of numerous sperm-specific proteins that are typically alloimmunogenic in females. Consequently, sperm membrane alloantigens are potential targets for contraceptives that act by blocking the proteins' functions in gamete interactions. Here we used a targeted proteomics approach to identify the major alloantigens in swine sperm membranes and lipid rafts, and thereby systematically defined the repertoire of these sperm-specific proteins in a single species. Gilts with high alloantibody reactivity to proteins in sperm membranes or lipid rafts produced fewer offspring (73% decrease) than adjuvant-only or nonimmune control animals. Alloantisera recognized more than 20 potentially unique sperm membrane proteins and five sperm lipid raft proteins resolved on two-dimensional immunoblots with or without prior enrichment by anion exchange chromatography. Dominant sperm membrane alloantigens identified by mass spectrometry included the ADAMs fertilin alpha, fertilin beta, and cyritestin. Less abundant alloantigens included ATP synthase F1 beta subunit, myo-inositol monophosphatase-1, and zymogen granule membrane glycoprotein-2. Immunodominant sperm lipid raft alloantigens included SAMP14, lymphocyte antigen 6K, and the epididymal sperm protein E12. Of the fifteen unique membrane alloantigens identified, eleven were known sperm-specific proteins with uncertain functions in fertilization, and four were not previously suspected to exist as sperm-specific isoforms. De novo sequences of tryptic peptides from sperm membrane alloantigen "M6" displayed no evident homology to known proteins, so is a newly discovered sperm-specific gene product in swine. We conclude that alloimmunizing gilts with sperm membranes or lipid rafts evokes formation of antibodies to a relatively small number of dominant alloantigens that include known and novel sperm-specific proteins with possible functions in fertilization and potential utility as targets for immunocontraception. PMID- 29342177 TI - A new fluorescent dye accumulation assay for parallel measurements of the ABCG2, ABCB1 and ABCC1 multidrug transporter functions. AB - ABC multidrug transporters are key players in cancer multidrug resistance and in general xenobiotic elimination, thus their functional assays provide important tools for research and diagnostic applications. In this study we have examined the potential interactions of three key human ABC multidrug transporters with PhenGreen diacetate (PGD), a cell permeable fluorescent metal ion indicator. The non-fluorescent, hydrophobic PGD rapidly enters the cells and, after cleavage by cellular esterases, in the absence of quenching metal ions, PhenGreen (PG) becomes highly fluorescent. We found that in cells expressing functional ABCG2, ABCB1, or ABCC1 transporters, cellular PG fluorescence is strongly reduced. This fluorescence signal in the presence of specific transporter inhibitors is increased to the fluorescence levels in the control cells. Thus the PG accumulation assay is a new, unique tool for the parallel determination of the function of the ABCG2, ABCB1, and ABCC1 multidrug transporters. Since PG has very low cellular toxicity, the PG accumulation assay also allows the selection, separation and culturing of selected cell populations expressing either of these transporters. PMID- 29342178 TI - Chaos and multi-scroll attractors in RCL-shunted junction coupled Jerk circuit connected by memristor. AB - In this paper, a new four-variable dynamical system is proposed to set chaotic circuit composed of memristor and Josephson junction, and the dependence of chaotic behaviors on nonlinearity is investigated. A magnetic flux-controlled memristor is used to couple with the RCL-shunted junction circuit, and the dynamical behaviors can be modulated by changing the coupling intensity between the memristor and the RCL-shunted junction. Bifurcation diagram and Lyapunov exponent are calculated to confirm the emergence of chaos in the improved dynamical system. The outputs and dynamical behaviors can be controlled by the initial setting and external stimulus as well. As a result, chaos can be suppressed and spiking occurs in the sampled outputs under negative feedback, while applying positive feedback type via memristor can be effective to trigger chaos. Furthermore, it is found that the number of multi-attractors in the Jerk circuit can be modulated when memristor coupling is applied on the circuit. These results indicate that memristor coupling can be effective to control chaotic circuits and it is also useful to reproduce dynamical behaviors for neuronal activities. PMID- 29342179 TI - The polymethoxy flavonoid sudachitin suppresses inflammatory bone destruction by directly inhibiting osteoclastogenesis due to reduced ROS production and MAPK activation in osteoclast precursors. AB - Inflammatory bone diseases, including rheumatoid arthritis, periodontitis and peri-implantitis, are associated not only with the production of inflammatory cytokines but also with local oxidative status, which is defined by intracellular reactive oxygen species (ROS). Osteoclast differentiation has been reported to be related to increased intracellular ROS levels in osteoclast lineage cells. Sudachitin, which is a polymethoxyflavone derived from Citrus sudachi, possesses antioxidant properties and regulates various functions in mammalian cells. However, the effects of sudachitin on inflammatory bone destruction and osteoclastogenesis remain unknown. In calvaria inflamed by a local lipopolysaccharide (LPS) injection, inflammation-induced bone destruction and the accompanying elevated expression of osteoclastogenesis-related genes were reduced by the co-administration of sudachitin and LPS. Moreover, sudachitin inhibited osteoclast formation in cultures of isolated osteoblasts and osteoclast precursors. However, sudachitin rather increased the expression of receptor activator of NF-kappaB ligand (RANKL), which is an important molecule triggering osteoclast differentiation, and the mRNA ratio of RANKL/osteoprotegerin that is a decoy receptor for RANKL, in the isolated osteoblasts, suggesting the presence of additional target cells. When osteoclast formation was induced from osteoclast precursors derived from bone marrow cells in the presence of soluble RANKL and macrophage colony-stimulating factor, sudachitin inhibited osteoclastogenesis without influencing cell viability. Consistently, the expression of osteoclast differentiation-related molecules including c-fos, NFATc1, cathepsin K and osteoclast fusion proteins such as DC-STAMP and Atp6v0d2 was reduced by sudachitin. In addition, sudachitin decreased activation of MAPKs such as Erk and JNK and the ROS production evoked by RANKL in osteoclast lineage cells. Our findings suggest that sudachitin is a useful agent for the treatment of anti inflammatory bone destruction. PMID- 29342180 TI - Increased prevalence of pregnancy and comparative risk of program attrition among individuals starting HIV treatment in East Africa. AB - BACKGROUND: The World Health Organization now recommends initiating all pregnant women on life-long antiretroviral therapy (ART), yet there is limited information about the characteristics and program outcomes of pregnant women already on ART in Africa. Our hypothesis was that pregnant women comprised an increasing proportion of those starting ART, and that sub-groups of these women were at higher risk for program attrition. METHODS AND FINDINGS: We used the International Epidemiology Databases to Evaluate AIDS- East Africa (IeDEA-EA) to conduct a retrospective cohort study including HIV care and treatment programs in Kenya, Uganda, and Tanzania. The cohort consecutively included HIV-infected individuals 13 years or older starting ART 2004-2014. We examined trends over time in the proportion pregnant, their characteristics and program attrition rates compared to others initiating and already receiving ART. 156,474 HIV infected individuals (67.0% women) started ART. The proportion of individuals starting ART who were pregnant women rose from 5.3% in 2004 to 12.2% in 2014. Mean CD4 cell counts at ART initiation, weighted for annual program size, increased from 2004 to 2014, led by non-pregnant women (annual increase 20 cells/mm3) and men (17 cells/mm3 annually), with lower rates of change in pregnant women (10 cells/mm3 per year) (p<0.0001). There was no significant difference in the cumulative incidence of program attrition at 6 months among pregnant women starting ART and non-pregnant women. However, healthy pregnant women starting ART (WHO stage 1/2) had a higher rate of attrition rate (9.6%), compared with healthy non-pregnant women (6.5%); in contrast among women with WHO stage 3/4 disease, pregnant women had lower attrition (8.4%) than non-pregnant women (14.4%). Among women who initiated ART when healthy and remained in care for six months, subsequent six-month attrition was slightly higher among pregnant women at ART start (3.5%) compared to those who were not pregnant (2.4%), (absolute difference 1.1%, 95% CI 0.7%-1.5%). CONCLUSIONS: Pregnant women comprise an increasing proportion of those initiating ART in Africa, and pregnant women starting ART while healthy are at higher risk for program attrition than non-pregnant women. As ART programs further expand access to healthier pregnant women, further studies are needed to better understand the drivers of loss among this high risk group of women to optimize retention. PMID- 29342181 TI - Optimization of mNeonGreen for Homo sapiens increases its fluorescent intensity in mammalian cells. AB - Green fluorescent protein (GFP) is tremendously useful for investigating many cellular and intracellular events. The monomeric GFP mNeonGreen is about 3- to 5 times brighter than GFP and monomeric enhanced GFP and shows high photostability. The maturation half-time of mNeonGreen is about 3-fold faster than that of monomeric enhanced GFP. However, the cDNA sequence encoding mNeonGreen contains some codons that are rarely used in Homo sapiens. For better expression of mNeonGreen in human cells, we synthesized a human-optimized cDNA encoding mNeonGreen and generated an expression plasmid for humanized mNeonGreen under the control of the cytomegalovirus promoter. The resultant plasmid was introduced into HEK293 cells. The fluorescent intensity of humanized mNeonGreen was about 1.4-fold higher than that of the original mNeonGreen. The humanized mNeonGreen with a mitochondria-targeting signal showed mitochondrial distribution of mNeonGreen. We further generated an expression vector of humanized mNeonGreen with 3xFLAG tags at its carboxyl terminus as these tags are useful for immunological analyses. The 3xFLAG-tagged mNeonGreen was recognized well with an anti-FLAG-M2 antibody. These plasmids for the expression of humanized mNeonGreen and mNeonGreen-3xFLAG are useful tools for biological studies in mammalian cells using mNeonGreen. PMID- 29342182 TI - Light alcohol consumption has the potential to suppress hepatocellular injury and liver fibrosis in non-alcoholic fatty liver disease. AB - BACKGROUND & AIMS: The modest consumption of alcohol has been reported to decrease the incidence of fatty liver or prevalence of steatohepatitis. In this study, we investigated the effect of light alcohol consumption on liver function and gene expression in patients with non-alcoholic fatty liver disease (NAFLD). METHODS: The study group was formed of 178 patients diagnosed with non-alcoholic fatty liver disease, subclassified into two groups for analysis based on the daily alcohol consumption: non-alcohol group and light alcohol consumer group (<=20 g of ethanol/day). Clinical characteristics, liver histological features, gene expression, comprehensively analyzed using microarrays (BRB-Array tools), and molecular network were evaluated and compared between the two groups. RESULTS: No significant differences in steatosis or inflammation score were noted among the groups. However, the ballooning and fibrosis scores were significantly lower in the light alcohol consumer group than in the non-alcohol group. Gene expression analysis revealed a marked inhibition of the pathways involved in the immune response in the light alcohol group compared to that in the non-alcohol group. CONCLUSIONS: Light alcohol consumption might suppress activity of non alcoholic steatohepatitis by reducing gene expression levels involved in the immune response. This inhibition in gene expression was associated with a lowering of liver fibrosis and hepatocellular injury. PMID- 29342183 TI - Identification of volatiles released by diapausing brown marmorated stink bug, Halyomorpha halys (Hemiptera: Pentatomidae). AB - The brown marmorated stink bug, Halyomorpha halys, is an agricultural and urban pest that has become widely established as an invasive species of major concern in the USA and across Europe. This species forms large aggregations when entering diapause, and it is often these aggregations that are found by officials conducting inspections of internationally shipped freight. Identifying the presence of diapausing aggregations of H. halys using their emissions of volatile organic compounds (VOCs) may be a potential means for detecting and intercepting them during international freight inspections. Headspace samples were collected from aggregations of diapausing H. halys using volatile collection traps (VCTs) and solid phase microextraction. The only compound detected in all samples was tridecane, with small amounts of (E)-2-decenal found in most samples. We also monitored the release of defensive odors, following mechanical agitation of diapausing and diapause-disrupted adult H. halys. Diapausing groups were significantly more likely to release defensive odors than diapause-disrupted groups. The predominant compounds consistently found from both groups were tridecane, (E)-2-decenal, and 4-oxo-(E)-2-hexenal, with a small abundance of dodecane. Our findings show that diapausing H. halys do release defensive compounds, and suggest that volatile sampling may be feasible to detect H. halys in freight. PMID- 29342184 TI - Species delimitation in the Stenocereus griseus (Cactaceae) species complex reveals a new species, S. huastecorum. AB - The Stenocereus griseus species complex (SGSC) has long been considered taxonomically challenging because the number of taxa belonging to the complex and their geographical boundaries remain poorly understood. Bayesian clustering and genetic distance-based methods were used based on nine microsatellite loci in 377 individuals of three main putative species of the complex. The resulting genetic clusters were assessed for ecological niche divergence and areolar morphology, particularly spination patterns. We based our species boundaries on concordance between genetic, ecological, and morphological data, and were able to resolve four species, three of them corresponding to S. pruinosus from central Mexico, S. laevigatus from southern Mexico, and S. griseus from northern South America. A fourth species, previously considered to be S. griseus and commonly misidentified as S. pruinosus in northern Mexico showed significant genetic, ecological, and morphological differentiation suggesting that it should be considered a new species, S. huastecorum, which we describe here. We show that population genetic analyses, ecological niche modeling, and morphological studies are complementary approaches for delimiting species in taxonomically challenging plant groups such as the SGSC. PMID- 29342185 TI - Nanocarrier-mediated foliar zinc fertilization influences expression of metal homeostasis related genes in flag leaves and enhances gluten content in durum wheat. AB - BACKGROUND: Wheat is the staple food for most of the world's population; however, it is a poor source of zinc. Foliar fertilization of zinc via zinc loaded chitosan nanocarriers (Zn-CNP) post-anthesis has proved to be a promising approach for grain zinc enhancement in durum wheat as evidenced in our earlier study. However, the molecular mechanism of uptake of zinc via Zn-CNP remains unclear. METHODS/PRINCIPLE FINDINGS: Foliar application of Zn-CNP was performed at post anthesis stages in two durum wheat cultivars (MACS 3125 and UC1114, containing the Gpc-B1 gene), and expression levels of several metal-related genes were analyzed during early senescence. Zn-CNP application indeed caused changes in gene expression as revealed by qPCR data on representative genes involved in metal homeostasis, phloem transporters, and leaf senescence. Furthermore, zinc regulated transporters and iron (Fe)-regulated transporter-like protein (ZIP) family [ZIP1, ZIP7, ZIP15], CA (carbonic anhydrase), and DMAS (2'-deoxymugineic acid synthase) in flag leaves exhibited significant correlation with zinc content in the seeds. The analysis of grain endosperm proteins showed enhancement of gamma gliadins while other gluten subunits decreased. Gene expression within ZIP family members varied with the type of cultivar mostly attributed to the Gpc-B1, concentration of external zinc ions as well as the type of tissue analyzed. Correlation analysis revealed the involvement of the selected genes in zinc enhancement. CONCLUSION: At the molecular level, uptake of zinc via Zn-CNP nanocarrier was comparable to the uptake of zinc via common zinc fertilizers i.e. ZnSO4. PMID- 29342186 TI - Doxorubicin-provoked increase of mitotic activity and concomitant drain of G0 pool in therapy-resistant BE(2)-C neuroblastoma. AB - In this study chemotherapy response in neuroblastoma (NB) was assessed for the first time in a transplantation model comprising non-malignant human embryonic microenvironment of pluripotent stem cell teratoma (PSCT) derived from diploid bona fide hESC. Two NB cell lines with known high-risk phenotypes; the multi resistant BE(2)-C and the drug sensitive IMR-32, were transplanted to the PSCT model and the tumour growth was exposed to single or repeated treatments with doxorubicin, and thereafter evaluated for cell death, apoptosis, and proliferation. Dose dependent cytotoxic effects were observed, this way corroborating the experimental platform for this type of analysis. Notably, analysis of doxorubicin-resilient BE(2)-C growth in the PSCT model revealed an unexpected 1,5-fold increase in Ki67-index (p<0.05), indicating that non-cycling (G0) cells entered the cell cycle following the doxorubicin exposure. Support for this notion was obtained also in vitro. A pharmacologically relevant dose (1MUM) resulted in a marked accumulation of Ki67 positive BE(2)-C cells (p<0.0001), as well as a >3-fold increase in active cell cycle (i.e. cells positive staining for PH3 together with incorporation of EdU) (p<0.01). Considering the clinical challenge for treating high-risk NB, the discovery of a therapy-provoked growth stimulating effect in the multi-resistant and p53-mutated BE(2)-C cell line, but not in the drug-sensitive p53wt IMR-32 cell line, warrants further studies concerning generality and clinical significance of this new observation. PMID- 29342187 TI - Induction of high tolerance to artemisinin by sub-lethal administration: A new in vitro model of P. falciparum. AB - Artemisinin resistance is a major threat to malaria control efforts. Resistance is characterized by an increase in the Plasmodium falciparum parasite clearance half-life following treatment with artemisinin-based combination therapies (ACTs) and an increase in the percentage of surviving parasites. The remarkably short blood half-life of artemisinin derivatives may contribute to drug-resistance, possibly through factors including sub-lethal plasma concentrations and inadequate exposure. Here we selected for a new strain of artemisinin resistant parasites, termed the artemisinin resistant strain 1 (ARS1), by treating P. falciparum Palo Alto (PA) cultures with sub-lethal concentrations of dihydroartemisinin (DHA). The resistance phenotype was maintained for over 1 year through monthly maintenance treatments with low doses of 2.5 nM DHA. There was a moderate increase in the DHA IC50 in ARS1 when compared with parental strain PA after 72 h of drug exposure (from 0.68 nM to 2 nM DHA). In addition, ARS1 survived treatment physiologically relevant DHA concentrations (700 nM) observed in patients. Furthermore, we confirmed a lack of cross-resistance against a panel of antimalarials commonly used as partner drugs in ACTs. Finally, ARS1 did not contain Pfk13 propeller domain mutations associated with ART resistance in the Greater Mekong Region. With a stable growth rate, ARS1 represents a valuable tool for the development of new antimalarial compounds and studies to further elucidate the mechanisms of ART resistance. PMID- 29342188 TI - Comparative analysis of gene expression identifies distinct molecular signatures of bone marrow- and periosteal-skeletal stem/progenitor cells. AB - Periosteum and bone marrow (BM) both contain skeletal stem/progenitor cells (SSCs) that participate in fracture repair. However, the functional difference and selective regulatory mechanisms of SSCs in different locations are unknown due to the lack of specific markers. Here, we report a comprehensive gene expression analysis of bone marrow SSCs (BM-SSCs), periosteal SSCs (P-SSCs), and more differentiated osteoprogenitors by using reporter mice expressing Interferon inducible Mx1 and NestinGFP, previously known SSC markers. We first defined that the BM-SSCs can be enriched by the combination of Mx1 and NestinGFP expression, while endogenous P-SSCs can be isolated by positive selection of Mx1, CD105 and CD140a (known SSC markers) combined with the negative selection of CD45, CD31, and osteocalcinGFP (a mature osteoblast marker). Comparative gene expression analysis with FACS-sorted BM-SSCs, P-SSCs, Osterix+ preosteoblasts, CD51+ stroma cells and CD45+ hematopoietic cells as controls revealed that BM-SSCs and P-SSCs have high similarity with few potential differences without statistical significance. We also found that CD51+ cells are highly heterogeneous and have little overlap with SSCs. This was further supported by the microarray cluster analysis, where the two SSC populations clustered together but are separate from the CD51+ cells. However, when comparing SSC population to controls, we found several genes that are uniquely upregulated in endogenous SSCs. Amongst these genes, we found KDR (aka Flk1 or VEGFR2) to be most interesting and discovered that it is highly and selectively expressed in P-SSCs. This finding suggests that endogenous P-SSCs are functionally very similar to BM-SSCs with undetectable significant differences in gene expression but there are distinct molecular signatures in P-SSCs, which can be useful to specify P-SSC subset in vivo. PMID- 29342190 TI - Potential of vegetation indices combined with laser-induced fluorescence parameters for monitoring leaf nitrogen content in paddy rice. AB - Nitrogen (N) is important for the growth of crops. Leaf nitrogen content (LNC) serves as a crucial indicator of the growth status of crops and can help determine the dose of N fertilizer. Laser-induced fluorescence (LIF) technology and the reflectance spectra of crops are widely used to detect the biochemical content of leaves. Many vegetation indices (VIs) and fluorescence parameters have been developed to estimate LNC. However, the comparison among VIs and between fluorescence parameters and VIs has been rarely studied in the estimation of LNC. In this study, the performances of several published empirical VIs and fluorescence parameters for the estimation of paddy rice LNC were analyzed using the support vector machine (SVM) algorithm. Then, the optimal VIs (TVI, MTVI1, MTVI2, and MSAVI) and fluorescence parameters (F735/F460 and F685/F460), which were suitable for LNC monitoring in this study, were chosen. In addition, the combination of the VIs and fluorescence parameters was proposed as the input variables in the SVM model and used to estimate the LNC. Experimental results exhibited the promising potential of the LIF technology combined with reflectance for the accurate estimation of LNC, which provided guidance for monitoring the LNC. PMID- 29342189 TI - The microbiota metabolite indole inhibits Salmonella virulence: Involvement of the PhoPQ two-component system. AB - The microbial community present in the gastrointestinal tract is an important component of the host defense against pathogen infections. We previously demonstrated that indole, a microbial metabolite of tryptophan, reduces enterohemorrhagic Escherichia coli O157:H7 attachment to intestinal epithelial cells and biofilm formation, suggesting that indole may be an effector/attenuator of colonization for a number of enteric pathogens. Here, we report that indole attenuates Salmonella Typhimurium (Salmonella) virulence and invasion as well as increases resistance to colonization in host cells. Indole-exposed Salmonella colonized mice less effectively compared to solvent-treated controls, as evident by competitive index values less than 1 in multiple organs. Indole-exposed Salmonella demonstrated 160-fold less invasion of HeLa epithelial cells and 2 fold less invasion of J774A.1 macrophages compared to solvent-treated controls. However, indole did not affect Salmonella intracellular survival in J774A.1 macrophages suggesting that indole primarily affects Salmonella invasion. The decrease in invasion was corroborated by a decrease in expression of multiple Salmonella Pathogenicity Island-1 (SPI-1) genes. We also identified that the effect of indole was mediated by both PhoPQ-dependent and independent mechanisms. Indole also synergistically enhanced the inhibitory effect of a short chain fatty acid cocktail on SPI-1 gene expression. Lastly, indole-treated HeLa cells were 70% more resistant to Salmonella invasion suggesting that indole also increases resistance of epithelial cells to colonization. Our results demonstrate that indole is an important microbiota metabolite that has direct anti-infective effects on Salmonella and host cells, revealing novel mechanisms of pathogen colonization resistance. PMID- 29342191 TI - Changes in balance and joint position sense during a 12-day high altitude trek: The British Services Dhaulagiri medical research expedition. AB - Postural control and joint position sense are essential for safely undertaking leisure and professional activities, particularly at high altitude. We tested whether exposure to a 12-day trek with a gradual ascent to high altitude impairs postural control and joint position sense. This was a repeated measures observational study of 12 military service personnel (28+/-4 years). Postural control (sway velocity measured by a portable force platform) during standing balance, a Sharpened Romberg Test and knee joint position sense were measured, in England (113m elevation) and at 3 research camps (3619m, 4600m and 5140m) on a 12 day high altitude trek in the Dhaulagiri region of Nepal. Pulse oximetry, and Lake Louise scores were also recorded on the morning and evening of each trek day. Data were compared between altitudes and relationships between pulse oximetry, Lake Louise score, and sway velocity were explored. Total sway velocity during standing balance with eyes open (p = 0.003, d = 1.9) and during Sharpened Romberg test with eyes open (p = 0.007, d = 1.6) was significantly greater at altitudes of 3619m and 5140m when compared with sea level. Anterior-posterior sway velocity during standing balance with eyes open was also significantly greater at altitudes of 3619m and 5140m when compared with sea level (p = 0.001, d = 1.9). Knee joint position sense was not altered at higher altitudes. There were no significant correlations between Lake Louise scores, pulse oximetry and postural sway. Despite a gradual ascent profile, exposure to 3619 m was associated with impairments in postural control without impairment in knee joint position sense. Importantly, these impairments did not worsen at higher altitudes of 4600 m or 5140 m. The present findings should be considered during future trekking expeditions when developing training strategies targeted to manage impairments in postural control that occur with increasing altitude. PMID- 29342192 TI - White matter tract-specific quantitative analysis in multiple sclerosis: Comparison of optic radiation reconstruction techniques. AB - The posterior visual pathway is commonly affected by multiple sclerosis (MS) pathology that results in measurable clinical and electrophysiological impairment. Due to its highly structured retinotopic mapping, the visual pathway represents an ideal substrate for investigating patho-mechanisms in MS. Therefore, a reliable and robust imaging segmentation method for in-vivo delineation of the optic radiations (OR) is needed. However, diffusion-based tractography approaches, which are typically used for OR segmentation are confounded by the presence of focal white matter lesions. Current solutions require complex acquisition paradigms and demand expert image analysis, limiting application in both clinical trials and clinical practice. In the current study, using data acquired in a clinical setting on a 3T scanner, we optimised and compared two approaches for optic radiation (OR) reconstruction: individual probabilistic tractography-based and template-based methods. OR segmentation results were applied to subjects with MS and volumetric and diffusivity parameters were compared between OR segmentation techniques. Despite differences in reconstructed OR volumes, both OR lesion volume and OR diffusivity measurements in MS subjects were highly comparable using optimised probabilistic tractography-based, and template-based, methods. The choice of OR reconstruction technique should be determined primarily by the research question and the nature of the available dataset. Template-based approaches are particularly suited to the semi-automated analysis of large image datasets and have utility even in the absence of dMRI acquisitions. Individual tractography methods, while more complex than template based OR reconstruction, permit measurement of diffusivity changes along fibre bundles that are affected by specific MS lesions or other focal pathologies. PMID- 29342193 TI - Analysis of copy number loss of the ErbB4 receptor tyrosine kinase in glioblastoma. AB - Current treatments for glioblastoma multiforme (GBM)-an aggressive form of brain cancer-are minimally effective and yield a median survival of 14.6 months and a two-year survival rate of 30%. Given the severity of GBM and the limitations of its treatment, there is a need for the discovery of novel drug targets for GBM and more personalized treatment approaches based on the characteristics of an individual's tumor. Most receptor tyrosine kinases-such as EGFR-act as oncogenes, but publicly available data from the Cancer Cell Line Encyclopedia (CCLE) indicates copy number loss in the ERBB4 RTK gene across dozens of GBM cell lines, suggesting a potential tumor suppressor role. This loss is mutually exclusive with loss of its cognate ligand NRG1 in CCLE as well, more strongly suggesting a functional role. The availability of higher resolution copy number data from clinical GBM patients in The Cancer Genome Atlas (TCGA) revealed that a region in Intron 1 of the ERBB4 gene was deleted in 69.1% of tumor samples harboring ERBB4 copy number loss; however, it was also found to be deleted in the matched normal tissue samples from these GBM patients (n = 81). Using the DECIPHER Genome Browser, we also discovered that this mutation occurs at approximately the same frequency in the general population as it does in the disease population. We conclude from these results that this loss in Intron 1 of the ERBB4 gene is neither a de novo driver mutation nor a predisposing factor to GBM, despite the indications from CCLE. A biological role of this significantly occurring genetic alteration is still unknown. While this is a negative result, the broader conclusion is that while copy number data from large cell line-based data repositories may yield compelling hypotheses, careful follow up with higher resolution copy number assays, patient data, and general population analyses are essential to codify initial hypotheses prior to investing experimental resources. PMID- 29342194 TI - Tolerance to mild salinity stress in japonica rice: A genome-wide association mapping study highlights calcium signaling and metabolism genes. AB - Salinity tolerance is an important quality for European rice grown in river deltas. We evaluated the salinity tolerance of a panel of 235 temperate japonica rice accessions genotyped with 30,000 SNP markers. The panel was exposed to mild salt stress (50 mM NaCl; conductivity of 6 dS m-1) at the seedling stage. Eight different root and shoot growth parameters were measured for both the control and stressed treatments. The Na+ and K+ mass fractions of the stressed plants were measured using atomic absorption spectroscopy. The salt treatment affected plant growth, particularly the shoot parameters. The panel showed a wide range of Na+/K+ ratio and the temperate accessions were distributed over an increasing axis, from the most resistant to the most susceptible checks. We conducted a genome-wide association study on indices of stress response and ion mass fractions in the leaves using a classical mixed model controlling structure and kinship. A total of 27 QTLs validated by sub-sampling were identified. For indices of stress responses, we also used another model that focused on marker * treatment interactions and detected 50 QTLs, three of which were also identified using the classical method. We compared the positions of the significant QTLs to those of approximately 300 genes that play a role in rice salt tolerance. The positions of several QTLs were close to those of genes involved in calcium signaling and metabolism, while other QTLs were close to those of kinases. These results reveal the salinity tolerance of accessions with a temperate japonica background. Although the detected QTLs must be confirmed by other approaches, the number of associations linked to candidate genes involved in calcium-mediated ion homeostasis highlights pathways to explore in priority to understand the salinity tolerance of temperate rice. PMID- 29342195 TI - Association between PM10, PM2.5, NO2, O3 and self-reported diabetes in Italy: A cross-sectional, ecological study. AB - INTRODUCTION: Air pollution represents a serious threat to health on a global scale, being responsible for a large portion of the global burden of disease from environmental factors. Current evidence about the association between air pollution exposure and Diabetes Mellitus (DM) is still controversial. We aimed to evaluate the association between area-level ambient air pollution and self reported DM in a large population sample in Italy. MATERIALS AND METHODS: We extracted information about self-reported and physician diagnosed DM, risk factors and socio-economic status from 12 surveys conducted nationwide between 1999 and 2013. We obtained annual averaged air pollution levels for the years 2003, 2005, 2007 and 2010 from the AMS-MINNI national integrated model, which simulates the dispersion and transformation of pollutants. The original maps, with a resolution of 4 x 4 km2, were normalized and aggregated at the municipality class of each Italian region, in order to match the survey data. We fit logistic regression models with a hierarchical structure to estimate the relationship between PM10, PM2.5, NO2 and O3 four-years mean levels and the risk of being affected by DM. RESULTS: We included 376,157 individuals aged more than 45 years. There were 39,969 cases of DM, with an average regional prevalence of 9.8% and a positive geographical North-to-South gradient, opposite to that of pollutants' concentrations. For each 10 MUg/m3 increase, the resulting ORs were 1.04 (95% CI 1.01-1.07) for PM10, 1.04 (95% CI 1.02-1.07) for PM2.5, 1.03 (95% CI 1.01-1.05) for NO2 and 1.06 (95% CI 1.01-1.11) for O3, after accounting for relevant individual risk factors. The associations were robust to adjustment for other pollutants in two-pollutant models tested (ozone plus each other pollutant). CONCLUSIONS: We observed a significant positive association between each examined pollutant and prevalent DM. Risk estimates were consistent with current evidence, and robust to sensitivity analysis. Our study adds evidence about the effects of air pollution on diabetes and suggests a possible role of ozone as an independent factor associated with the development of DM. Such relationship is of great interest for public health and deserves further investigation. PMID- 29342196 TI - Low fitness is associated with abdominal adiposity and low-grade inflammation independent of BMI. AB - OBJECTIVE: Up to 30% of obese individuals are metabolically healthy. Metabolically healthy obese (MHO) individuals are characterized by having low abdominal adiposity, low inflammation level and low risk of developing metabolic comorbidity. In this study, we hypothesize that cardiorespiratory fitness (fitness) is a determinant factor for the MHO individuals and aim to investigate the associations between fitness, abdominal adiposity and low-grade inflammation within different BMI categories. METHOD: Data from 10,976 individuals from the general population, DANHES 2007-2008, on waist circumference, fitness and C reactive protein (hsCRP) were analysed using multiple linear and median quantile regressions. RESULTS: In men, an inverse association between fitness (+5 mL min-1 kg-1) and waist circumference (-1.45 cm; 95% CI: -1.55 to -1.35 cm; p<0.001), and an inverse association between fitness (+5 mL min-1 kg-1) and hsCRP (-0.22 mg/L; 95% CI: -0.255 to -0.185 mg/L; p<0.001) was found, all independent of BMI. Similarly in women, an inverse association between fitness (+5 mL min-1 kg-1) and waist circumference (-1.15 cm; 95% CI: -1.25 to -1.0 cm; p<0.001), and an inverse association between fitness (+5 mL min-1 kg-1) and hsCRP (-0.26 mg/L; 95% CI: 0.3 to -0.22 mg/L; p<0.001) was found, all independent of BMI. Additionally, significant positive associations between waist circumference and hsCRP were found for both men and women, independently of BMI. CONCLUSION: Fitness was found to be inversely associated with both abdominal adiposity and low-grade inflammation independent of BMI. These data suggest that, in spite of BMI, high fitness levels lead to a reduction in abdominal fat mass and low-grade inflammation. PMID- 29342197 TI - Molecular discrimination of tall fescue morphotypes in association with Festuca relatives. AB - Tall fescue (Festuca arundinacea Schreb.) is an important cool-season perennial grass species used as forage and turf, and in conservation plantings. There are three morphotypes in hexaploid tall fescue: Continental, Mediterranean and Rhizomatous. This study was conducted to develop morphotype-specific molecular markers to distinguish Continental and Mediterranean tall fescues, and establish their relationships with other species of the Festuca genus for genomic inference. Chloroplast sequence variation and simple sequence repeat (SSR) polymorphism were explored in 12 genotypes of three tall fescue morphotypes and four Festuca species. Hypervariable chloroplast regions were retrieved by using 33 specifically designed primers followed by sequencing the PCR products. SSR polymorphism was studied using 144 tall fescue SSR primers. Four chloroplast (NFTCHL17, NFTCHL43, NFTCHL45 and NFTCHL48) and three SSR (nffa090, nffa204 and nffa338) markers were identified which can distinctly differentiate Continental and Mediterranean morphotypes. A primer pair, NFTCHL45, amplified a 47 bp deletion between the two morphotypes is being routinely used in the Noble Research Institute's core facility for morphotype discrimination. Both chloroplast sequence variation and SSR diversity showed a close association between Rhizomatous and Continental morphotypes, while the Mediterranean morphotype was in a distant clade. F. pratensis and F. arundinacea var. glaucescens, the P and G1G2 genome donors, respectively, were grouped with the Continental clade, and F. mairei (M1M2 genome) grouped with the Mediterranean clade in chloroplast sequence variation, while both F. pratensis and F. mairei formed independent clade in SSR analysis. Age estimation based on chloroplast sequence variation indicated that the Continental and Mediterranean clades might have been colonized independently during 0.65 +/- 0.06 and 0.96 +/- 0.1 million years ago (Mya) respectively. The findings of the study will enhance tall fescue breeding for persistence and productivity. PMID- 29342198 TI - Three-dimensional printing model improves morphological understanding in acetabular fracture learning: A multicenter, randomized, controlled study. AB - Conventional education results in unsatisfactory morphological understanding of acetabular fractures due to lack of three-dimensional (3D) details and tactile feedback of real fractures. Virtual reality (VR) and 3D printing (3DP) techniques are widely applied in teaching. The purpose of this study was to identify the effect of physical model (PM), VR and 3DP models in education of morphological understanding of acetabular fractures. 141 students were invited to participate in this study. Participants were equally and randomly assigned to the PM, VR and 3DP learning groups. Three-level objective tests were conducted to evaluate learning, including identifying anatomical landmarks, describing fracture lines, identifying classification, and inferring fracture mechanism. Four subjective questions were asked to evaluate the usability and value of instructional materials. Generally, the 3DP group showed a clear advantage over the PM and VR groups in objective tests, while there was no significant difference between the PM and VR groups. 3DP was considered to be the most valuable learning tool for understanding acetabular fractures. The findings demonstrate that 3DP modelling of real fractures is an effective learning instrument that can be used to understand the morphology of acetabular fractures and promote subjective interest. PMID- 29342199 TI - A non-linear pharmacokinetic-pharmacodynamic relationship of metformin in healthy volunteers: An open-label, parallel group, randomized clinical study. AB - BACKGROUND: The aim of this study was to explore the pharmacokinetic pharmacodynamic (PK-PD) relationship of metformin on glucose levels after the administration of 250 mg and 1000 mg of metformin in healthy volunteers. METHODS: A total of 20 healthy male volunteers were randomized to receive two doses of either a low dose (375 mg followed by 250 mg) or a high dose (1000 mg followed by 1000 mg) of metformin at 12-h intervals. The pharmacodynamics of metformin was assessed using oral glucose tolerance tests before and after metformin administration. The PK parameters after the second dose were evaluated through noncompartmental analyses. Four single nucleotide polymorphisms in MATE1, MATE2 K, and OCT2 were genotyped, and their effects on PK characteristics were additionally evaluated. RESULTS: The plasma exposure of metformin increased as the metformin dose increased. The mean values for the area under the concentration-time curve from dosing to 12 hours post-dose (AUC0-12h) were 3160.4 and 8808.2 h.MUg/L for the low- and high-dose groups, respectively. Non-linear relationships were found between the glucose-lowering effect and PK parameters with a significant inverse trend at high metformin exposure. The PK parameters were comparable among subjects with the genetic polymorphisms. CONCLUSIONS: This study showed a non-linear PK-PD relationship on plasma glucose levels after the administration of metformin. The inverse relationship between systemic exposure and the glucose-lowering effect at a high exposure indicates a possible role for the intestines as an action site for metformin. TRIAL REGISTRATION: ClinicalTrials.gov NCT02712619. PMID- 29342200 TI - Inhibiting TGF-beta signaling preserves the function of highly activated, in vitro expanded natural killer cells in AML and colon cancer models. AB - Natural killer cells harnessed from healthy individuals can be expanded ex vivo using various platforms to produce large doses for adoptive transfer into cancer patients. During such expansion, NK cells are increasingly activated and more efficient at killing cancer cells. Adoptive transfer however introduces these activated cells into a highly immunosuppressive tumor microenvironment mediated in part by excessive transforming growth factor beta (TGF-beta) from both cancer cells and their surrounding stroma. This microenvironment ultimately limits the clinical efficacy of NK cell therapy. In this study, we examined the use of a TGF beta receptor kinase inhibitor, LY2157299, in preserving the cytotoxic function of ex vivo expanded, highly activated NK cells following sustained exposure to pathologic levels of TGF-beta in vitro and in a liver metastases model of colon cancer. Using myeloid leukemia and colon cancer cell lines, we show that the TGF beta driven impairment of NK cell cytotoxicity is mitigated by LY2157299. We demonstrate this effect using quantitative cytotoxicity assays as well as by showing a preserved activated phenotype with high NKG2D/CD16 expression and enhanced cytokine production. In a mouse liver metastases model of colon cancer, we observed significantly improved eradication of liver metastases in mice treated with adoptive NK cells combined with LY2157299 compared with mice receiving NK cells or TGF beta inhibition alone. We propose that the therapeutic efficacy of adoptive NK cell therapy clinically will be markedly enhanced by complementary approaches targeting TGF-beta signaling in vivo. PMID- 29342201 TI - Differentiation of glioblastoma multiforme, metastases and primary central nervous system lymphomas using multiparametric perfusion and diffusion MR imaging of a tumor core and a peritumoral zone-Searching for a practical approach. AB - INTRODUCTION: In conventional MR examinations glioblastomas multiforme (GBMs), metastases and primary CNS lymphomas (PCNSLs) may show very similar appearance. The aim of the study was to evaluate usefulness of multiparametric T2*DSC perfusion and diffusion MR imaging in the preoperative differentiation of these tumors. MATERIAL AND METHODS: Seventy four solitary enhancing tumors (27 GBMs, 30 metastases, 17 PCNSLs) were enrolled in the study. Parameters of cerebral blood volume (rCBV), peak height (rPH), percentage of signal recovery (rPSR) and apparent diffusion coefficient (ADC) were assessed from the tumor core and the peritumoral non-enhancing T2-hyperintense zone. RESULTS: Within the tumor core there were no differences in perfusion and diffusion parameters between GBMs and metastases. Compared to GBMs and metastases, PCNSLs showed significantly lower rCBV and rPH, ADC as well as higher rPSR values. Max rCBV with a cut-off value of 2.18 demonstrated the highest accuracy of 0.98 in differentiating PCNSLs from other tumors. To distinguish GBMs from metastases analysis of the peritumoral zone was performed showing significantly higher rCBV, rPH and lower ADC values in GBMs with the highest accuracy of 0.94 found for max rCBV at a cut-off value of 0.98. CONCLUSIONS: Max rCBV seems to be the most important parameter to differentiate GBMs, metastases and PCNSLs. Analysis of max rCBV within the tumor core enables to distinguish hypoperfused PCNSLs from hyperperfused GBMs and metastases while evaluation of max rCBV within the peritumoral zone is helpful to distinguish GBMs showing peritumoral infiltration from metastases surrounded by pure edema. PMID- 29342202 TI - Cells containing aragonite crystals mediate responses to gravity in Trichoplax adhaerens (Placozoa), an animal lacking neurons and synapses. AB - Trichoplax adhaerens has only six cell types. The function as well as the structure of crystal cells, the least numerous cell type, presented an enigma. Crystal cells are arrayed around the perimeter of the animal and each contains a birefringent crystal. Crystal cells resemble lithocytes in other animals so we looked for evidence they are gravity sensors. Confocal microscopy showed that their cup-shaped nuclei are oriented toward the edge of the animal, and that the crystal shifts downward under the influence of gravity. Some animals spontaneously lack crystal cells and these animals behaved differently upon being tilted vertically than animals with a typical number of crystal cells. EM revealed crystal cell contacts with fiber cells and epithelial cells but these contacts lacked features of synapses. EM spectroscopic analyses showed that crystals consist of the aragonite form of calcium carbonate. We thus provide behavioral evidence that Trichoplax are able to sense gravity, and that crystal cells are likely to be their gravity receptors. Moreover, because placozoans are thought to have evolved during Ediacaran or Cryogenian eras associated with aragonite seas, and their crystals are made of aragonite, they may have acquired gravity sensors during this early era. PMID- 29342203 TI - Biological pathways underlying the association of red cell distribution width and adverse clinical outcome: Results of a prospective cohort study. AB - BACKGROUND: Red cell distribution width (RDW) predicts disease outcome in several patient populations, but its prognostic value in addition to other disease parameters in unselected medical inpatients remains unclear. Our aim was to investigate the association of admission RDW levels and mortality adjusted for several disease pathways in unselected medical patients from a previous multicenter study. METHODS: We included consecutive adult, medical patients at the time point of hospital admission through the emergency department into this observational, cohort study. The primary endpoint was mortality at 30-day. To study association of admission RDW and outcomes, we calculated regression analysis with step-wise inclusion of clinical and laboratory parameters from different biological pathways. RESULTS: The 30-day mortality of the 4273 included patients was 5.6% and increased from 1.4% to 14.3% from the lowest to the highest RDW quartile. There was a strong association of RDW and mortality in unadjusted analysis (OR 1.32; 95%CI 1.27-1.39, p<0.001). RDW was strongly correlated with different pathways including inflammation (coefficient of determination (R2) 0.30; p<0.001), nutrition (R2 0.20; p<0.001) and blood diseases (R2 0.30; p<0.001 The association was eliminated after including different biological pathways into the models with the fully adjusted regression model showing an OR of 1.02 (95%CI 0.93-1.12; p = 0.664) for the association of RDW and mortality. Similar effects were found for other outcomes including intensive care unit admission and hospital readmission. CONCLUSION: Our data suggests that RDW is a strong surrogate marker of mortality in unselected medical inpatients with most of the prognostic information being explained by other disease factors. The strong correlation of RDW and different biological pathways such as chronic inflammation, malnutrition and blood disease suggest that RDW may be viewed as an unspecific and general "chronic disease prognostic marker". PMID- 29342204 TI - Bulk metal concentrations versus total suspended solids in rivers: Time-invariant & catchment-specific relationships. AB - Suspended particles in rivers can act as carriers of potentially bioavailable metal species and are thus an emerging area of interest in river system monitoring. The delineation of bulk metals concentrations in river water into dissolved and particulate components is also important for risk assessment. Linear relationships between bulk metal concentrations in water (CW,tot) and total suspended solids (TSS) in water can be used to easily evaluate dissolved (CW, intercept) and particle-bound metal fluxes (CSUS, slope) in streams (CW,tot = CW + CSUS TSS). In this study, we apply this principle to catchments in Iran (Haraz) and Germany (Ammer, Goldersbach, and Steinlach) that show differences in geology, geochemistry, land use and hydrological characteristics. For each catchment, particle-bound and dissolved concentrations for a suite of metals in water were calculated based on linear regressions of total suspended solids and total metal concentrations. Results were replicable across sampling campaigns in different years and seasons (between 2013 and 2016) and could be reproduced in a laboratory sedimentation experiment. CSUS values generally showed little variability in different catchments and agree well with soil background values for some metals (e.g. lead and nickel) while other metals (e.g. copper) indicate anthropogenic influences. CW was elevated in the Haraz (Iran) catchment, indicating higher bioavailability and potential human and ecological health concerns (where higher values of CSUS/CW are considered as a risk indicator). PMID- 29342205 TI - Correction: Cholecystectomy can increase the risk of colorectal cancer: A meta analysis of 10 cohort studies. AB - [This corrects the article DOI: 10.1371/journal.pone.0181852.]. PMID- 29342207 TI - Prognosis of chronic kidney disease with normal-range proteinuria: The CKD-ROUTE study. AB - BACKGROUND: Although lower estimated glomerular filtration rate (eGFR) and higher proteinuria are high risks for mortality and kidney outcomes, the prognosis of chronic kidney disease (CKD) in patients with normal-range proteinuria remains unclear. METHODS: In this prospective cohort study, 1138 newly visiting stage G2 G5 CKD patients were stratified into normal-range and abnormal-range proteinuria groups. Study endpoints were CKD progression (>50% eGFR loss or initiation of dialysis), cardiovascular events, and all-cause death. RESULTS: In total, 927 patients who were followed for >6 months were included in the analysis. The mean age was 67 years, and 70.2% were male. During a median follow-up of 35 months, CKD progression, cardiovascular events, and mortality were observed in 223, 110, and 55 patients, respectively. Patients with normal-range proteinuria had a significantly lower risk for CKD progression (hazard ratio, 0.20; 95% confidence interval, 0.10-0.38) than those with abnormal-proteinuria by multivariate Cox proportional hazard analysis. We also analyzed patients with normal-range proteinuria (n = 351). Nephrosclerosis was the most frequent cause of CKD among all patients with normal-range proteinuria (59.7%). During a median follow-up of 36 months, CKD progression, cardiovascular events, and mortality were observed in 10, 28, and 18 patients, respectively. The Kaplan-Meyer analysis demonstrated that the risks of CKD progression and cardiovascular events were not significantly different among CKD stages, whereas the risk of death was significantly higher in patients with advanced-stage CKD. Multivariate Cox proportional hazard analysis showed that the risk of three endpoints did not significantly differ among CKD stages. CONCLUSION: Newly visiting CKD patients with normal-range proteinuria, who tend to be overlooked during health checkups did not exhibit a decrease in kidney function even in advanced CKD stages under specialized nephrology care. PMID- 29342206 TI - Silymarin prevents acetaminophen-induced hepatotoxicity in mice. AB - Acetaminophen or paracetamol (APAP) overdose is a common cause of liver injury. Silymarin (SLM) is a hepatoprotective agent widely used for treating liver injury of different origin. In order to evaluate the possible beneficial effects of SLM, Balb/c mice were pretreated with SLM (100 mg/kg b.wt. per os) once daily for three days. Two hours after the last SLM dose, the mice were administered APAP (300 mg/kg b.wt. i.p.) and killed 6 (T6), 12 (T12) and 24 (T24) hours later. SLM treated mice exhibited a significant reduction in APAP-induced liver injury, assessed according to AST and ALT release and histological examination. SLM treatment significantly reduced superoxide production, as indicated by lower GSSG content, lower HO-1 induction, alleviated nitrosative stress, decreased p-JNK activation and direct measurement of mitochondrial superoxide production in vitro. SLM did not affect the APAP-induced decrease in CYP2E1 activity and expression during the first 12 hrs. Neutrophil infiltration and enhanced expression of inflammatory markers were first detected at T12 in both groups. Inflammation progressed in the APAP group at T24 but became attenuated in SLM treated animals. Histological examination suggests that necrosis the dominant cell death pathway in APAP intoxication, which is partially preventable by SLM pretreatment. We demonstrate that SLM significantly protects against APAP-induced liver damage through the scavenger activity of SLM and the reduction of superoxide and peroxynitrite content. Neutrophil-induced damage is probably secondary to necrosis development. PMID- 29342208 TI - Comparison of traffic-injury related hospitalisation between bicyclists and motorcyclists in Taiwan. AB - OBJECTIVES: Bicyclists and motorcyclists contribute substantially to the morbidity and mortality rates of road crash casualties. The objective of the study was to investigate the crash characteristics of bicyclist and motorcyclist casualties presented to hospitals in Taiwan resulting from crashes. METHODS: By using linked data from The National Traffic Crash Dataset and the National Health Insurance Database between 2003 and 2012, logistic regression models were used to examine the determinants of hospitalisation among motorcyclist and bicyclist casualties. The examined variables include demographic characteristics, road and weather conditions, and vehicle characteristics. RESULTS: A total of 1,998,606 two-wheelers were enrolled in the study, of whom 216,600 were hospitalised: 203,623 were motorcyclists and 12,964 were bicyclists. Bicyclists were more likely to be hospitalised than motorcyclists were (14.0% vs. 10.7%). The pooled logistic regression model shows that bicyclists had higher odds of hospitalisation than motorcyclists (adjusted odds ratio [AOR] = 1.11, 95% confident interval [CI] = 1.08-1.14). In the motorcyclist and bicyclist models, helmet non-use appears to be a determinant of hospitalisation for motorcyclists (AOR = 1.14, CI = 1.12-1.16), although insignificant for cyclists (AOR = 1.03, CI = 0.94-1.12). Other important determinants of hospitalisation for motorcyclists and cyclists include female riders, elderly riders, rural roadways, unlicensed riding (for motorcyclists only), curved roadways, defective roadways, alcohol consumption (only for motorcyclists), and single-vehicle crashes (for motorcyclists only). CONCLUSIONS: The result that bicyclists had an increased probability of being hospitalised than motorcyclists is particularly noteworthy, because there have recently been much more users of bikesharing systems in metropolitan cities where cycle helmets are not provided. We further found that helmet non-use was also a risk factor for motorcyclists, but insignificant for cyclists, possibly due to lower helmet utilization rates among bicyclists. Our findings regarding the increased hospitalisation percentage emphasize the importance of helmet use. PMID- 29342209 TI - Correction: Harmonizing the pixel size in retrospective computed tomography radiomics studies. AB - [This corrects the article DOI: 10.1371/journal.pone.0178524.]. PMID- 29342210 TI - Effects of theory of mind performance training on reducing bullying involvement in children and adolescents with high-functioning autism spectrum disorder. AB - Bullying involvement is prevalent among children and adolescents with autism spectrum disorder (ASD). This study examined the effects of theory of mind performance training (ToMPT) on reducing bullying involvement in children and adolescents with high-functioning ASD. Children and adolescents with high functioning ASD completed ToMPT (n = 26) and social skills training (SST; n = 23) programs. Participants in both groups and their mothers rated the pretraining and posttraining bullying involvement of participants on the Chinese version of the School Bullying Experience Questionnaire. The paired t test was used to evaluate changes in bullying victimization and perpetration between the pretraining and posttraining assessments. Furthermore, the linear mixed-effect model was used to examine the difference in the training effect between the ToMPT and SST groups. The paired t test indicated that in the ToMPT group, the severities of both self reported (p = .039) and mother-reported (p = .003) bullying victimization significantly decreased from the pretraining to posttraining assessments, whereas in the SST group, only self-reported bullying victimization significantly decreased (p = .027). The linear mixed-effect model indicated that compared with the SST program, the ToMPT program significantly reduced the severity of mother reported bullying victimization (p = .041). The present study supports the effects of ToMPT on reducing mother-reported bullying victimization in children and adolescents with high-functioning ASD. PMID- 29342211 TI - Correction: A Meta-Analysis of the Association between ESR1 Genetic Variants and the Risk of Breast Cancer. AB - [This corrects the article DOI: 10.1371/journal.pone.0153314.]. PMID- 29342214 TI - Correction: Large-Scale Diversity of Slope Fishes: Pattern Inconsistency between Multiple Diversity Indices. AB - [This corrects the article DOI: 10.1371/journal.pone.0066753.]. PMID- 29342212 TI - Sequence variation in Plasmodium falciparum merozoite surface protein-2 is associated with virulence causing severe and cerebral malaria. AB - Parasite virulence, an important factor contributing to the severity of Plasmodium falciparum infection, varies among P. falciparum strains. Relatively little is known regarding markers of virulence capable of identifying strains responsible for severe malaria. We investigated the effects of genetic variations in the P.f. merozoite surface protein 2 gene (msp2) on virulence, as it was previously postulated as a factor. We analyzed 300 msp2 sequences of single P. falciparum clone infection from patients with uncomplicated disease as well as those admitted for severe malaria with and without cerebral disease. The association of msp2 variations with disease severity was examined. We found that the N allele at codon 8 of Block 2 in the FC27-like msp2 gene was significantly associated with severe disease without cerebral complications (odds ratio = 2.73, P = 0.039), while the K allele at codon 17 of Block 4 in the 3D7-like msp2 gene was associated with cerebral malaria (odds ratio = 3.52, P = 0.024). The data suggests possible roles for the associated alleles on parasite invasion processes and immune-mediated pathogenicity. Multiplicity of infection was found to associate with severe disease without cerebral complications, but not cerebral malaria. Variations in the msp2-FC27-block 2-8N and 3D7-block 4-17K allele appear to be parasite virulence markers, and may be useful in determining the likelihood for severe and cerebral malaria. Their interactions with potential host factors for severe diseases should also be explored. PMID- 29342213 TI - Circulating neutrophil transcriptome may reveal intracranial aneurysm signature. AB - BACKGROUND: Unruptured intracranial aneurysms (IAs) are typically asymptomatic and undetected except for incidental discovery on imaging. Blood-based diagnostic biomarkers could lead to improvements in IA management. This exploratory study examined circulating neutrophils to determine whether they carry RNA expression signatures of IAs. METHODS: Blood samples were collected from patients receiving cerebral angiography. Eleven samples were collected from patients with IAs and 11 from patients without IAs as controls. Samples from the two groups were paired based on demographics and comorbidities. RNA was extracted from isolated neutrophils and subjected to next-generation RNA sequencing to obtain differential expressions for identification of an IA-associated signature. Bioinformatics analyses, including gene set enrichment analysis and Ingenuity Pathway Analysis, were used to investigate the biological function of all differentially expressed transcripts. RESULTS: Transcriptome profiling identified 258 differentially expressed transcripts in patients with and without IAs. Expression differences were consistent with peripheral neutrophil activation. An IA-associated RNA expression signature was identified in 82 transcripts (p<0.05, fold-change >=2). This signature was able to separate patients with and without IAs on hierarchical clustering. Furthermore, in an independent, unpaired, replication cohort of patients with IAs (n = 5) and controls (n = 5), the 82 transcripts separated 9 of 10 patients into their respective groups. CONCLUSION: Preliminary findings show that RNA expression from circulating neutrophils carries an IA-associated signature. These findings highlight a potential to use predictive biomarkers from peripheral blood samples to identify patients with IAs. PMID- 29342215 TI - Correction: Seventy Years of Asthma in Italy: Age, Period and Cohort Effects on Incidence and Remission of Self-Reported Asthma from 1940 to 2010. AB - [This corrects the article DOI: 10.1371/journal.pone.0138570.]. PMID- 29342216 TI - In Vitro activity of novel glycopolymer against clinical isolates of multidrug resistant Staphylococcus aureus. AB - The incidence of multidrug-resistant (MDR) organisms, including methicillin resistant Staphylococcus aureus (MRSA), is a serious threat to public health. Progress in developing new therapeutics is being outpaced by antibiotic resistance development, and alternative agents that rapidly permeabilize bacteria hold tremendous potential for treating MDR infections. A new class of glycopolymers includes polycationic poly-N (acetyl, arginyl) glucosamine (PAAG) is under development as an alternative to traditional antibiotic strategies to treat MRSA infections. This study demonstrates the antibacterial activity of PAAG against clinical isolates of methicillin and mupirocin-resistant Staphylococcus aureus. Multidrug-resistant S. aureus was rapidly killed by PAAG, which completely eradicated 88% (15/17) of all tested strains (6-log reduction in CFU) in <= 12-hours at doses that are non-toxic to mammalian cells. PAAG also sensitized all the clinical MRSA strains (17/17) to oxacillin as demonstrated by the observed reduction in the oxacillin MIC to below the antibiotic resistance breakpoint. The effect of PAAG and standard antibiotics including vancomycin, oxacillin, mupirocin and bacitracin on MRSA permeability was studied by measuring propidium iodide (PI) uptake by bacterial cells. Antimicrobial resistance studies showed that S. aureus developed resistance to PAAG at a rate slower than to mupirocin but similar to bacitracin. PAAG was observed to resensitize drug resistant S. aureus strains sampled from passage 13 and 20 of the multi-passage resistance study, reducing MICs of mupirocin and bacitracin below their clinical sensitivity breakpoints. This class of bacterial permeabilizing glycopolymers may provide a new tool in the battle against multidrug-resistant bacteria. PMID- 29342217 TI - How do the outcomes of the DEKA Arm compare to conventional prostheses? AB - OBJECTIVES: Objectives were to 1) compare self-reported function, dexterity, activity performance, quality of life and community integration of the DEKA Arm to conventional prostheses; and 2) examine differences in outcomes by conventional prosthesis type, terminal device type and by DEKA Arm configuration level. METHODS: This was a two-part study; Part A consisted of in-laboratory training. Part B consisted of home use. Study participants were 23 prosthesis users (mean age = 45 +/- 16; 87% male) who completed Part A, and 15 (mean age = 45 +/- 18; 87% male) who completed Parts A and B. Outcomes including self-report and performance measures, were collected at Baseline using participants' personal prostheses and at the End of Parts A and B. Scores were compared using paired t tests. Wilcoxon signed-rank tests were used to compare outcomes for the full sample, and for the sample stratified by device and terminal device type. Analysis of outcomes by configuration level was performed graphically. RESULTS: At the End of Part A activity performance using the DEKA Arm and conventional prosthesis was equivalent, but slower with the DEKA Arm. After Part B, performance using the DEKA Arm surpassed conventional prosthesis scores, and speed of activity completion was equivalent. Participants reported using the DEKA Arm to perform more activities, had less perceived disability, and less difficulty in activities at the End of A and B as compared to Baseline. No differences were observed in dexterity, prosthetic skill, spontaneity, pain, community integration or quality of life. Comparisons stratified by device type revealed similar patterns. Graphic comparisons revealed variations by configuration level. CONCLUSION: Participants using the DEKA Arm had less perceived disability and more engagement of the prosthesis in everyday tasks, although activity performance was slower. After home use experience, activity performance was improved and activity speed equivalent to using conventional prostheses. PMID- 29342218 TI - Cross-lagged structural equation models for the relationship between health related state and behaviours and body bullying in adolescence: findings from longitudinal study ELANA. AB - We investigated the stability and the directionality of being body bullied and a set of four variables- 1) Body Mass Index (BMI), 2) moderate and vigorous physical activity (MVPA), 3) television time (TV) and 4) video game/computer time (VG)-, termed in the present study as 'health-related state and behaviours (HRSB)'-across adolescence. The Adolescent Nutritional Assessment Longitudinal Study (ELANA) is a cohort study conducted among middle school students from two public and four private schools in Rio de Janeiro-Brazil. We analysed data from 2010 (T1) and 2012 (T2) among 810 adolescents (aged 9-15 at T1). Gender-specific structural equation models (SEM) were estimated, including autoregressive paths for the HRSB and being body bullied over time, correlations at T1 and T2, respectively, and cross-lagged effects. The results presented significant stability coefficients for almost all variables over time in both genders (except for MVPA in boys and girls and TV time among girls). There were positive correlations between BMI and being body bullied, as well as between TV and VG for boys (0.32, p<0.001 and 0.24, p<0.001, respectively) and girls (0.30, p<0.001 and 0.30, p<0.001, respectively) at T1. It remained significant at T2 (boys: 0.18, p<0.05 and 0.16, p<0.01; girls: 0.21, p<0.01 and 0.22, p<0.01, respectively). Examining the cross-lagged paths between being body bullied and HRSB, we observed that the reciprocal model provided the best fit for boys, indicating that BMI at T1 had a significant effect in being body bullied at T2 (0.12, p<0.05) and being body bullied at T1 had an effect on VG at T2 (0.14, p<0.01). Among girls the forward causation model showed the best fit, demonstrating a significant effect of being body bullied at T1 on VG at T2 (0.16, p<0.01). Apart from MVPA, both being body bullying and HRSB were largely stable across adolescence. For boys and girls alike, exposure to being body bullied seemed to increase their time spent on VG, while for boys BMI also predicted being body bullied. This study highlighted the complex interplay between being body bullied and HRSB and the importance of acknowledging gender differences in this context. PMID- 29342220 TI - Correction: IFNAR2-dependent gene expression profile induced by IFN-alpha in Pteropus alecto bat cells and impact of IFNAR2 knockout on virus infection. AB - [This corrects the article DOI: 10.1371/journal.pone.0182866.]. PMID- 29342219 TI - The expression profile and prognostic significance of eukaryotic translation elongation factors in different cancers. AB - Eukaryotic translation factors, especially initiation factors have garnered much attention with regards to their role in the onset and progression of different cancers. However, the expression levels and prognostic significance of translation elongation factors remain poorly explored in different cancers. In this study, we have investigated the mRNA transcript levels of seven translation elongation factors in different cancer types using Oncomine and TCGA databases. Furthermore, we have identified the prognostic significance of these factors using Kaplan-Meier Plotter and SurvExpress databases. We observed altered expression levels of all the elongation factors in different cancers. Higher expression of EEF1A2, EEF1B2, EEF1G, EEF1D, EEF1E1 and EEF2 was observed in most of the cancer types, whereas reverse trend was observed for EEF1A1. Overexpression of many factors predicted poor prognosis in breast (EEF1D, EEF1E1, EEF2) and lung cancer (EEF1A2, EEF1B2, EEF1G, EEF1E1). However, we didn't see any common correlation of expression levels of elongation factors with survival outcomes across cancer types. Cancer subtype stratification showed association of survival outcomes and expression levels of elongation factors in specific sub types of breast, lung and gastric cancer. Most interestingly, we observed a reciprocal relationship between the expression levels of the two EEF1A isoforms viz. EEF1A1 and EEF1A2, in most of the cancer types. Our results suggest that translation elongation factors can have a role in tumorigenesis and affect survival in cancer specific manner. Elongation factors have potential to serve as biomarkers and therapeutic drug targets, yet further study is required. Reciprocal relationship of differential expression between EEF1A isoforms observed in multiple cancer types indicates opposing roles in cancer and needs further investigation. PMID- 29342221 TI - Genotype-by-environment interactions affecting heterosis in maize. AB - The environment can influence heterosis, the phenomena in which the offspring of two inbred parents exhibits phenotypic performance beyond the inbred parents for specific traits. In this study we measured 25 traits in a set of 47 maize hybrids and their inbred parents grown in 16 different environments with varying levels of average productivity. By quantifying 25 vegetative and reproductive traits across the life cycle we were able to analyze interactions between the environment and multiple distinct instances of heterosis. The magnitude and rank among hybrids for better-parent heterosis (BPH) varied for the different traits and environments. Across the traits, a higher within plot variance was observed for inbred lines compared to hybrids. However, for most traits, variance across environments was not significantly different for inbred lines compared to hybrids. Further, for many traits the correlations of BPH to hybrid performance and BPH to better parent performance were of comparable magnitude. These results indicate that inbred lines and hybrids show similar trends in environmental response and both are contributing to observed genotype-by-environment interactions for heterosis. This study highlights the degree of heterosis is not an inherent trait of a specific hybrid, but varies depending on the trait measured and the environment where that trait is measured. Studies that attempt to correlate molecular processes with heterosis are hindered by the fact that heterosis is not a consistent attribute of a specific hybrid. PMID- 29342223 TI - Development of a Job Exposure Matrix for Noise in the Swedish Soft Tissue Paper Industry. AB - Objectives: Noise exposure is a common occupational hazard, but has not been sufficiently characterized in paper mills. We developed a job-exposure matrix (JEM) for noise exposure for use in estimating exposures among Swedish soft tissue paper mill workers. Methods: We used a combination of area and personal dosimetry noise exposure measurements made at four soft tissue paper mills by industry and research staff between 1977 and 2013 to estimate noise exposures by department, location, and job title. We then utilized these estimates, in conjunction with information on process and facility changes and use of hearing protection collected via focus groups, to create a seven-category, semi quantitative JEM for all departments, locations, and job titles spanning the years 1940-2010. Results: The results of the 1157 area and personal dosimetry noise measurements indicated that noise levels have generally declined in Swedish paper mills over time, though these changes have been neither uniform nor monotonic within or across the four mills. Focus group results indicated that use of hearing protection has generally increased over time. The noise JEM totals 1917 cells, with each cell representing a unique combination of operation, job title, and single year. We estimated that ~50% of workers at the four mills assessed were exposed at or above the Swedish 8-h average noise exposure limit of an 85 dBA at the conclusion of the study period in 2010. Conclusions: Our results highlight the continuing need for hearing loss prevention and noise control efforts at these and similar mills, and the completed JEM now represents a tool for use in epidemiological studies of noise-related health outcomes. PMID- 29342222 TI - Mechano-electric feedback effects in a three-dimensional (3D) model of the contracting cardiac ventricle. AB - Mechano-electric feedback affects the electrophysiological and mechanical function of the heart and the cellular, tissue, and organ properties. To determine the main factors that contribute to this effect, this study investigated the changes in the action potential characteristics of the ventricle during contraction. A model of stretch-activated channels was incorporated into a three-dimensional multiscale model of the contracting ventricle to assess the effect of different preload lengths on the electrophysiological behavior. The model describes the initiation and propagation of the electrical impulse, as well as the passive (stretch) and active (contraction) changes in the cardiac mechanics. Simulations were performed to quantify the relationship between the cellular activation and recovery patterns as well as the action potential durations at different preload lengths in normal and heart failure pathological conditions. The simulation results showed that heart failure significantly affected the excitation propagation parameters compared to normal condition. The results showed that the mechano-electrical feedback effects appear to be most important in failing hearts with low ejection fraction. PMID- 29342224 TI - Elabela-APJ axis contributes to embryonic development and prevents pre-eclampsia in pregnancy. PMID- 29342225 TI - RE: "DIETARY INTAKE OF ANTIOXIDANT VITAMINS AND CAROTENOIDS AND RISK OF DEVELOPING ACTIVE TUBERCULOSIS IN A PROSPECTIVE POPULATION-BASED COHORT". PMID- 29342226 TI - Don't Judge a Book by its Cover: Examiner Expectancy Effects Predict Neuropsychological Performance for Individuals Judged as Chronic Cannabis Users. AB - Objective: The experimenter expectancy effect confound remains largely unexplored in neuropsychological research and has never been investigated among cannabis users. This study investigated whether examiner expectancies of cannabis user status affected examinees' neuropsychological performance. Method: Participants included 41 cannabis users and 20 non-users. Before testing, examiners who were blind to participant user status privately rated whether they believed the examinee was a cannabis user or non-user. Examiners then administered a battery of neuropsychological and performance validity measures. Multiple regression analyses compared performance between examinees judged as cannabis users (n = 37) and those judged as non-users (n = 24). Results: Examiners' judgments of cannabis users were 75% accurate; judgments of non-users were at chance. After controlling for age, gender, and actual user status, examiner judgments of cannabis user status predicted performance on two measures (California Verbal Learning Test-II, and Trail Making Test B; p < .05), as individuals judged as cannabis users obtained lower scores than those judged as non-users. Conclusions: Examiners' judgments of cannabis user status predicted performance even after controlling for actual user status, indicating vulnerability to examiner expectancy effects. These findings have important implications for both research and clinical settings, as scores may partially reflect examiners' expectations regarding cannabis effects rather than participants' cognitive abilities. These results demonstrate the need for expectancy effect research in the neuropsychological assessment of all populations, not just cannabis users. PMID- 29342227 TI - Brain Cytosolic Phospholipase A2alpha Mediates Angiotensin II-Induced Hypertension and Reactive Oxygen Species Production in Male Mice. AB - BACKGROUND: Recently, we reported that angiotensin II (Ang II)-induced hypertension is mediated by group IV cytosolic phospholipase A2alpha (cPLA2alpha) via production of prohypertensive eicosanoids. Since Ang II increases blood pressure (BP) via its action in the subfornical organ (SFO), it led us to investigate the expression and possible contribution of cPLA2alpha to oxidative stress and development of hypertension in this brain area. METHODS: Adenovirus (Ad)-green fluorescence protein (GFP) cPLA2alpha short hairpin (sh) RNA (Ad cPLA2alpha shRNA) and its control Ad-scrambled shRNA (Ad-Scr shRNA) or Ad enhanced cyan fluorescence protein cPLA2alpha DNA (Ad-cPLA2alpha DNA) and its control Ad-GFP DNA were transduced into SFO of cPLA2alpha+/+ and cPLA2alpha-/- male mice, respectively. Ang II (700 ng/kg/min) was infused for 14 days in these mice, and BP was measured by tail-cuff and radio telemetry. cPLA2 activity, reactive oxygen species production, and endoplasmic reticulum stress were measured in the SFO. RESULTS: Transduction of SFO with Ad-cPLA2alpha shRNA, but not Ad-Scr shRNA in cPLA2alpha+/+ mice, minimized expression of cPLA2alpha, Ang II-induced cPLA2alpha activity and oxidative stress in the SFO, BP, and cardiac and renal fibrosis. In contrast, Ad-cPLA2alpha DNA, but not its control Ad-GFP DNA in cPLA2alpha-/- mice, restored the expression of cPLA2alpha, and Ang II induced increase in cPLA2 activity and oxidative stress in the SFO, BP, cardiac, and renal fibrosis. CONCLUSIONS: These data suggest that cPLA2alpha in the SFO is crucial in mediating Ang II-induced hypertension and associated pathogenesis. Therefore, development of selective cPLA2alpha inhibitors could be useful in treating hypertension and its pathogenesis. PMID- 29342228 TI - Labiaplasty: Indications and Predictors of Postoperative Sequelae in 451 Consecutive Cases. AB - Background: The increasing demand for labiaplasty is well recognized; however, the procedure remains contentious. Objectives: We aim to provide a large-scale, up-to-date analysis of labiaplasty outcomes and factors influencing postoperative sequelae (POS). Methods: We analyzed a single-center, prospectively maintained database of females undergoing labiaplasty between 2002 and 2017. Demographic, procedural, and outcomes' data were retrieved. Binary logistic regressions were used to evaluate the odds of developing POS (revisional surgery and complications); presented as odds ratios (OR) with 95% confidence intervals (CI). Results: Data for 451 consecutive patients were retrieved, ten of whom were <18 years of age. Overall, 86% were Caucasian, mean age was 32.6 years, and 11.8% were smokers. Concomitant labia majora reduction was performed in 7.3%, and clitoral hood reduction in 5.8%. There were 32 cases of POS (7.1%), while the complication rate was 3.8%. Comparing those with POS to those without, there were no differences in age (32.8 vs 29.9 years, P = 0.210), operative time (78.5 vs 80.6 minutes, P = 0.246), or comorbidities (P > 0.05 for all). On univariable analysis, increased odds of POS occurred with sexual dysfunction as an indication for surgery (OR 3.778, CI 1.682-8.483). On subgroup analysis of those >=18 years, both smoking (2.576, CI 1.044-6.357) and sexual dysfunction as an indication (OR 4.022, CI 1.772-9.131) increased the odds of POS. On multivariable analysis of the subgroup, sexual dysfunction as an indication persisted in significance (OR 3.850, CI 1.683-8.807). Conclusions: Results compare favorably with previously reported complication and revisional surgery rates. Smoking and sexual dysfunction may increase the risk of complications. Level of Evidence 2: PMID- 29342229 TI - A rapid epistatic mixed-model association analysis by linear retransformations of genomic estimated values. AB - Motivation: Epistasis provides a feasible way for probing potential genetic mechanism of complex traits. However, time-consuming computation challenges successful detection of interaction in practice, especially when linear mixed model (LMM) is used to control type I error in the presence of population structure and cryptic relatedness. Results: A rapid epistatic mixed-model association analysis (REMMA) method was developed to overcome computational limitation. This method first estimates individuals' epistatic effects by an extended genomic best linear unbiased prediction (EG-BLUP) model with additive and epistatic kinship matrix, then pairwise interaction effects are obtained by linear retransformations of individuals' epistatic effects. Simulation studies showed that REMMA could control type I error and increase statistical power in detecting epistatic QTNs in comparison with existing LMM-based FaST-LMM. We applied REMMA to two real datasets, a mouse dataset and the Wellcome Trust Case Control Consortium (WTCCC) data. Application to the mouse data further confirmed the performance of REMMA in controlling type I error. For the WTCCC data, we found most epistatic QTNs for type 1 diabetes (T1D) located in a major histocompatibility complex (MHC) region, from which a large interacting network with 12 hub genes (interacting with ten or more genes) was established. Availability and implementation: Our REMMA method can be freely accessed at https://github.com/chaoning/REMMA. Contact: liujf@cau.edu.cn. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29342230 TI - Metformin as an anti-cancer agent: actions and mechanisms targeting cancer stem cells. AB - Metformin, a first line medication for type II diabetes, initially entered the spotlight as a promising anti-cancer agent due to epidemiologic reports that found reduced cancer risk and improved clinical outcomes in diabetic patients taking metformin. To uncover the anti-cancer mechanisms of metformin, preclinical studies determined that metformin impairs cellular metabolism and suppresses oncogenic signaling pathways, including receptor tyrosine kinase, PI3K/Akt, and mTOR pathways. Recently, the anti-cancer potential of metformin has gained increasing interest due to its inhibitory effects on cancer stem cells (CSCs), which are associated with tumor metastasis, drug resistance, and relapse. Studies using various cancer models, including breast, pancreatic, prostate, and colon, have demonstrated the potency of metformin in attenuating CSCs through the targeting of specific pathways involved in cell differentiation, renewal, metastasis, and metabolism. In this review, we provide a comprehensive overview of the anti-cancer actions and mechanisms of metformin, including the regulation of CSCs and related pathways. We also discuss the potential anti-cancer applications of metformin as mono- or combination therapies. PMID- 29342232 TI - Informational and linguistic analysis of large genomic sequence collections via efficient Hadoop cluster algorithms. AB - Motivation: Information theoretic and compositional/linguistic analysis of genomes have a central role in bioinformatics, even more so since the associated methodologies are becoming very valuable also for epigenomic and meta-genomic studies. The kernel of those methods is based on the collection of k-mer statistics, i.e. how many times each k-mer in {A,C,G,T}k occurs in a DNA sequence. Although this problem is computationally very simple and efficiently solvable on a conventional computer, the sheer amount of data available now in applications demands to resort to parallel and distributed computing. Indeed, those type of algorithms have been developed to collect k-mer statistics in the realm of genome assembly. However, they are so specialized to this domain that they do not extend easily to the computation of informational and linguistic indices, concurrently on sets of genomes. Results: Following the well-established approach in many disciplines, and with a growing success also in bioinformatics, to resort to MapReduce and Hadoop to deal with 'Big Data' problems, we present KCH, the first set of MapReduce algorithms able to perform concurrently informational and linguistic analysis of large collections of genomic sequences on a Hadoop cluster. The benchmarking of KCH that we provide indicates that it is quite effective and versatile. It is also competitive with respect to the parallel and distributed algorithms highly specialized to k-mer statistics collection for genome assembly problems. In conclusion, KCH is a much needed addition to the growing number of algorithms and tools that use MapReduce for bioinformatics core applications. Availability and implementation: The software, including instructions for running it over Amazon AWS, as well as the datasets are available at http://www.di-srv.unisa.it/KCH. Contact: umberto.ferraro@uniroma1.it. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29342231 TI - Mapping gene regulatory networks from single-cell omics data. AB - Single-cell techniques are advancing rapidly and are yielding unprecedented insight into cellular heterogeneity. Mapping the gene regulatory networks (GRNs) underlying cell states provides attractive opportunities to mechanistically understand this heterogeneity. In this review, we discuss recently emerging methods to map GRNs from single-cell transcriptomics data, tackling the challenge of increased noise levels and data sparsity compared with bulk data, alongside increasing data volumes. Next, we discuss how new techniques for single-cell epigenomics, such as single-cell ATAC-seq and single-cell DNA methylation profiling, can be used to decipher gene regulatory programmes. We finally look forward to the application of single-cell multi-omics and perturbation techniques that will likely play important roles for GRN inference in the future. PMID- 29342234 TI - Stability-Indicating HPLC and HPTLC Methods for Determination of Agomelatine and its Degradation Products. AB - Two accurate, sensitive and highly selective stability-indicating methods are developed and validated for simultaneous determination of Agomelatine (AGM) and its forced degradation products (Deg I and II). The first method is High Performance Liquid Chromatography for separation and quantitation of AGM, Deg I and II on a C18 column (250 mm * 4.6 mm, 5 MUm p.s) in isocratic mode by using a binary mixture of Potassium dihydrogen phosphate (0.05 M, pH adjusted to 2.9 with orthophosphoric acid): acetonitrile (60:40, v/v) at a flow rate of 2 mL/min. The components were detected at 230 nm over a concentration range of 0.5-10 MUg/mL for AGM and 0.5-5 MUg/mL for both Deg I and II. The second method is High Performance Thin-Layer Chromatography, where AGM, Deg I and II were separated on silica gel HPTLC F254 plates using chloroform:methanol:ammonia solution (9:1:0.1, by volume) as a developing system. The separated bands were scanned at 230 nm over the concentration range of 0.2-1.2 MUg/band for AGM in pure form and human plasma and 0.1-1 MUg/band for both Deg I and II. The proposed methods were successfully applied for analysis of AGM in pharmaceutical formulations. The results obtained by the proposed methods were statistically compared to the reported HPLC method revealing high accuracy and good precision. PMID- 29342233 TI - QuantumClone: clonal assessment of functional mutations in cancer based on a genotype-aware method for clonal reconstruction. AB - Motivation: In cancer, clonal evolution is assessed based on information coming from single nucleotide variants and copy number alterations. Nonetheless, existing methods often fail to accurately combine information from both sources to truthfully reconstruct clonal populations in a given tumor sample or in a set of tumor samples coming from the same patient. Moreover, previously published methods detect clones from a single set of variants. As a result, compromises have to be done between stringent variant filtering [reducing dispersion in variant allele frequency estimates (VAFs)] and using all biologically relevant variants. Results: We present a framework for defining cancer clones using most reliable variants of high depth of coverage and assigning functional mutations to the detected clones. The key element of our framework is QuantumClone, a method for variant clustering into clones based on VAFs, genotypes of corresponding regions and information about tumor purity. We validated QuantumClone and our framework on simulated data. We then applied our framework to whole genome sequencing data for 19 neuroblastoma trios each including constitutional, diagnosis and relapse samples. We confirmed an enrichment of damaging variants within such pathways as MAPK (mitogen-activated protein kinases), neuritogenesis, epithelial-mesenchymal transition, cell survival and DNA repair. Most pathways had more damaging variants in the expanding clones compared to shrinking ones, which can be explained by the increased total number of variants between these two populations. Functional mutational rate varied for ancestral clones and clones shrinking or expanding upon treatment, suggesting changes in clone selection mechanisms at different time points of tumor evolution. Availability and implementation: Source code and binaries of the QuantumClone R package are freely available for download at https://CRAN.R-project.org/package=QuantumClone. Contact: gudrun.schleiermacher@curie.fr or valentina.boeva@inserm.fr. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29342235 TI - Estimation of Lead Exposure Prevalence in Korean Population through Combining Multiple Experts' Judgment based on Objective Data Sources. AB - Objective: Estimating carcinogen exposure prevalence is important for preventing occupational cancers. To develop the Korean version of CARcinogen EXposure (CAREX), a carcinogen surveillance system used in many countries, we estimated lead exposure prevalence in the Korean working population. Methods: We used three Korean nationwide data sources to obtain objective database-derived prevalences of lead exposure across industries: airborne lead measurement data from the work environment measurement database (WEMD), blood lead measurement data from the special health examination database (SHED), and lead exposure prevalence computed using data from the work environment condition survey (WECS), which is a nationwide occupational exposure survey. We also asked a panel of 52 experts with >=20 years of experience in industrial hygiene practice for their judgment about lead exposure prevalence across industries after they reviewed the database derived prevalences computed from the three exposure databases. We developed and compared various estimation methods for combining the experts' judgments. The 2010 census was used as the reference population to estimate the number of lead exposed workers in 228 industries by multiplying the exposure prevalence by the number of workers in each industry. Results: The database-derived prevalences of lead exposure in the 228 industries were calculated using data collected between 2009 and 2011 from the WEMD and SHED and from the 2009 WECS. From the various estimation methods assessed, the median values of experts' responses were selected as our estimates of lead exposure prevalence in each industry. As a result, it was estimated that 129,250 Korean workers were exposed to lead in 2010. Conclusions: Based on objective databases, we developed a method for estimating exposure prevalence for the CAREX system by combining experts' judgments. This work may offer an unbiased approach to the development process that accounts for the uncertainty in exposure. PMID- 29342236 TI - MAGNAMWAR: an R package for genome-wide association studies of bacterial orthologs. AB - Summary: Here we report on an R package for genome-wide association studies of orthologous genes in bacteria. Before using the software, orthologs from bacterial genomes or metagenomes are defined using local or online implementations of OrthoMCL. These presence-absence patterns are statistically associated with variation in user-collected phenotypes using the Mono-Associated GNotobiotic Animals Metagenome-Wide Association R package (MAGNAMWAR). Genotype phenotype associations can be performed with several different statistical tests based on the type and distribution of the data. Availability and implementation: MAGNAMWAR is available on CRAN. Contact: john_chaston@byu.edu. PMID- 29342237 TI - The Roles of Subdivisions of Human Insula in Emotion Perception and Auditory Processing. AB - Previous studies have shown insular activations involving sensory, motor, and affective processing. However, the functional roles of subdivisions within the human insula are still not well understood. In the present study, we used intracranial electroencephalography and electrical cortical stimulation to investigate the causal roles of subdivisions of the insula in auditory emotion perception in epilepsy patients implanted with depth electrodes in this brain region. The posterior and the anterior subdivisions of the human insula, identified based on structural and functional analyses, showed distinct response properties to auditory emotional stimuli. The posterior insula showed auditory responses that resemble those observed in Heschl's gyrus, whereas the anterior insula (AI) responded to the emotional contents of the auditory stimuli in a similar way as observed in the amygdala. Furthermore, the degree of the differentiation between various emotion types increased from the posterior to the AI. Our findings suggest different roles played by the two regions of the human insula and a transformation from sensory to affective representations in auditory modality along the posterior-to-anterior axis in the human insula. PMID- 29342238 TI - Rhythmic Spontaneous Activity Mediates the Age-Related Decline in Somatosensory Function. AB - Sensory gating is a neurophysiological process whereby the response to a second stimulus in a pair of identical stimuli is attenuated, and it is thought to reflect the capacity of the CNS to preserve neural resources for behaviorally relevant stimuli. Such gating is observed across multiple sensory modalities and is modulated by age, but the mechanisms involved are not understood. In this study, we examined somatosensory gating in 68 healthy adults using magnetoencephalography (MEG) and advanced oscillatory and time-domain analysis methods. MEG data underwent source reconstruction and peak voxel time series data were extracted to evaluate the dynamics of somatosensory gating, and the impact of spontaneous neural activity immediately preceding the stimulation. We found that gating declined with increasing age and that older adults had significantly reduced gating relative to younger adults, suggesting impaired local inhibitory function. Most importantly, older adults had significantly elevated spontaneous activity preceding the stimulation, and this effect fully mediated the impact of aging on sensory gating. In conclusion, gating in the somatosensory system declines with advancing age and this effect is directly tied to increased spontaneous neural activity in the primary somatosensory cortices, which is likely secondary to age-related declines in local GABA inhibitory function. PMID- 29342239 TI - HPLC Estimation, Ex vivo Everted Sac Permeability and In Vivo Pharmacokinetic Studies of Darunavir. AB - Darunavir ethanolate (DRV) is an efficient protease inhibitor (PI) used in the treatment of human immunodeficiency virus (HIV) type-1 patients. An isocratic reversed-phase HPLC method was developed to monitor concentration of darunavir in in vitro intestinal fluid samples in everted sac absorption model in the presence of bioenhancers, viz., piperine, quercetin, naringenin. The method was validated and successfully applied to everted sac and pharmacokinetic studies in rats. The absorption profiles of DRV and apparent permeability coefficients were determined. The proposed method was found to be simple, rapid, robust and selective and was applied for continuous ex vivo monitoring of DRV in everted sac absorption studies. Of the three bioenhancers screened at different concentrations, piperine caused highest and significant 1.5-fold increase in apparent permeability of DRV across everted sac tissue. Further, co administration of piperine significantly increased the maximum plasma concentration of DRV by 1.18-fold confirming the enhancement in its absorption. PMID- 29342240 TI - Presence of Myocardial Damage Predicts Future Development of Hypertension in a Normotensive Japanese General Population: The Yamagata (Takahata) Study. AB - BACKGROUND: A modest rise in blood pressure (BP) reportedly increases cardiovascular mortality despite not reaching obvious hypertension, suggesting that target organ damages are latently induced by slight BP rising. The goal of this study was to determine whether presence of subclinical myocardial damage can predict the future development of hypertension in the normotensive general population. METHODS AND RESULTS: The cohort study was conducted with subjects who participated in a community-based annual health check. Normotensive subjects without prior cardiovascular diseases at baseline were eligible for analyses (n = 524, mean age 58 +/- 9 years; 53% women). We measured heart-type fatty acid binding protein (H-FABP) at baseline as a biomarker of ongoing myocardial damage. Longitudinal changes in BP were examined during median follow-up period of 6.2 years, and we investigated the association between the baseline H-FABP level and longitudinal BP changes. RESULTS: During the follow-up, 177 subjects (34%) developed hypertension. In multivariate Cox proportional hazard analysis adjusted for potential confounders including age and baseline BP, presence of myocardial damage was significantly associated with the development of hypertension (hazard ratio 1.80, 95% confidence interval, 1.26-2.54; P = 0.0014). Furthermore, relative risk of myocardial damage for incident hypertension was higher in younger subjects and lower BP category. CONCLUSIONS: Presence of subclinical myocardial damage was independently associated with the future development of hypertension in the normotensive general population. PMID- 29342241 TI - iPat: intelligent prediction and association tool for genomic research. AB - Summary: The ultimate goal of genomic research is to effectively predict phenotypes from genotypes so that medical management can improve human health and molecular breeding can increase agricultural production. Genomic prediction or selection (GS) plays a complementary role to genome-wide association studies (GWAS), which is the primary method to identify genes underlying phenotypes. Unfortunately, most computing tools cannot perform data analyses for both GWAS and GS. Furthermore, the majority of these tools are executed through a command line interface (CLI), which requires programming skills. Non-programmers struggle to use them efficiently because of the steep learning curves and zero tolerance for data formats and mistakes when inputting keywords and parameters. To address these problems, this study developed a software package, named the Intelligent Prediction and Association Tool (iPat), with a user-friendly graphical user interface. With iPat, GWAS or GS can be performed using a pointing device to simply drag and/or click on graphical elements to specify input data files, choose input parameters and select analytical models. Models available to users include those implemented in third party CLI packages such as GAPIT, PLINK, FarmCPU, BLINK, rrBLUP and BGLR. Users can choose any data format and conduct analyses with any of these packages. File conversions are automatically conducted for specified input data and selected packages. A GWAS-assisted genomic prediction method was implemented to perform genomic prediction using any GWAS method such as FarmCPU. iPat was written in Java for adaptation to multiple operating systems including Windows, Mac and Linux. Availability and implementation: The iPat executable file, user manual, tutorials and example datasets are freely available at http://zzlab.net/iPat. Contact: zhiwu.zhang@wsu.edu. PMID- 29342242 TI - Meiotic spindle formation in mammalian oocytes: implications for human infertility. AB - In the final stage of oogenesis, mammalian oocytes generate a meiotic spindle and undergo chromosome segregation to yield an egg that is ready for fertilization. Herein, we describe the recent advances in understanding the mechanisms controlling formation of the meiotic spindle in metaphase I (MI) and metaphase II (MII) in mammalian oocytes, and focus on the differences between mouse and human oocytes. Unlike mitotic cells, mammalian oocytes lack typical centrosomes that consist of two centrioles and the surrounding pericentriolar matrix proteins, which serve as microtubule-organizing centers (MTOCs) in most somatic cells. Instead, oocytes rely on different mechanisms for the formation of microtubules in MI spindles. Two different mechanisms have been described for MI spindle formation in mammalian oocytes. Chromosome-mediated microtubule formation, including RAN-mediated spindle formation and chromosomal passenger complex mediated spindle elongation, controls the growth of microtubules from chromatin, while acentriolar MTOC-mediated microtubule formation contributes to spindle formation. Mouse oocytes utilize both chromatin- and MTOC-mediated pathways for microtubule formation. The existence of both pathways may provide a fail-safe mechanism to ensure high fidelity of chromosome segregation during meiosis. Unlike mouse oocytes, human oocytes considered unsuitable for clinical in vitro fertilization procedures, lack MTOCs; this may explain why meiosis in human oocytes is often error-prone. Understanding the mechanisms of MI/MII spindle formation, spindle assembly checkpoint, and chromosome segregation, in mammalian oocytes, will provide valuable insights into the molecular mechanisms of human infertility. PMID- 29342243 TI - Devices in heart failure; diagnosis, detection and disease modification. AB - Introduction/background: Implantable cardiac devices are widely used in chronic heart failure (CHF) therapy. This review covers current CHF treatment with electronic cardiac devices, areas of discussion and emerging technologies. Sources of data: A comprehensive search of available literature resources including Pubmed, MEDLINE and EMBASE was performed. National and international guidelines were accessed. Areas of agreement: Excessive right ventricular pacing is detrimental to cardiac function. Cardiac resynchronization therapy is beneficial in specific individuals with CHF. Areas of controversy: Implantable cardioverter defibrillators might not benefit all. Optimizing CRT delivery. Remote monitoring seems not to be of benefit in CHF. Growing points: Device-based optimization. Areas timely for developing research: Personalization of device therapy. Focussing implantable cardioverter defibrillator therapy. What to do at implantable cardioverter defibrillator box change? PMID- 29342244 TI - Gli2 Rescues Delays in Brain Development Induced by Kif3a Dysfunction. AB - The primary cilium in neural stem cells plays distinct roles in different stages during cortical development. Ciliary dysfunctions in human (i.e., ciliopathy) cause developmental defects in multiple organs, including brain developmental delays, which lead to intellectual disabilities and cognitive deficits. However, effective treatment to this devastating developmental disorder is still lacking. Here, we first investigated the effects of ciliopathy on neural stem cells by knocking down Kif3a, a kinesin II motor required for ciliogenesis, in the neurogenic stage of cortical development by in utero electroporation of mouse embryos. Brains electroporated with Kif3a shRNA showed defects in neuronal migration and differentiation, delays in neural stem cell cycle progression, and failures in interkinetic nuclear migration. Interestingly, introduction of Gli1 and Gli2 both can restore the cell cycle progression by elevating cyclin D1 in neural stem cells. Remarkably, enforced Gli2 expression, but not Gli1, partially restored the ability of Kif3a-knockdown neurons to differentiate and move from the germinal ventricular zone to the cortical plate. Moreover, Cyclin D1 knockdown abolished Gli2's rescue effect. These findings suggest Gli2 may rescue neural stem cell proliferation, differentiation and migration through Cyclin D1 pathway and may serve as a potential therapeutic target for human ciliopathy syndromes through modulating the progression of neural stem cell cycle. PMID- 29342245 TI - Structure-Function Relationships of Olfactory and Taste Receptors. AB - The field of chemical senses has made major progress in understanding the cellular mechanisms of olfaction and taste in the past 2 decades. However, the molecular understanding of odor and taste recognition is still lagging far behind and will require solving multiple structures of the relevant full-length receptors in complex with native ligands to achieve this goal. However, the development of multiple complimentary strategies for the structure determination of G protein-coupled receptors (GPCRs) makes this goal realistic. The common conundrum of how multi-specific receptors that recognize a large number of different ligands results in a sensory perception in the brain will only be fully understood by a combination of high-resolution receptor structures and functional studies. This review discusses the first steps on this pathway, including biochemical and physiological assays, forward genetics approaches, molecular modeling, and the first steps towards the structural biology of olfactory and taste receptors. PMID- 29342246 TI - Associations of Quadriceps Torque Properties with Muscle Size, Attenuation, and Intramuscular Adipose Tissue in Older Adults. AB - Background: Atrophy and fatty infiltration of muscle with aging are associated with fractures and falls, however, their direct associations with muscle function are not well described. It was hypothesized that participants with lower quadriceps muscle attenuation, area, and greater intramuscular adipose tissue (IMAT) will exhibit slower rates of torque development (RTD) and lower peak knee extension torques. Methods: Data from 4,842 participants (2,041 men, 2,801 women) from the Age Gene/Environment Susceptibility Reykjavik Study (mean age 76 +/- 0.1 years) with complete thigh computed tomography and isometric knee testing. Regression models were adjusted for health, behavior, and comorbidities. Muscle attenuation was further adjusted for muscle area and IMAT; muscle area adjusted for IMAT and attenuation; and IMAT adjusted for muscle area and attenuation. Standardized betas (beta) indicate association effect sizes. Results: In the fully-adjusted models, attenuation (men beta = 0.06, 95% CI: 0.01, 0.11; women beta = 0.07, 95% CI: 0.03, 0.11) and muscle area (men beta = 0.13, 95% CI: 0.07, 0.19; women beta = 0.10, 95% CI: 0.06, 0.15) were associated with knee RTD. Attenuation (men beta = 0.12, 95% CI: 0.08, 0.16; women beta = 0.12, 95% CI: 0.09, 0.16) and muscle area (men beta = 0.38, 95% CI: 0.33, 0.43; women beta = 0.33, 95% CI: 0.29, 0.37) were associated with peak torque. Conclusions: These data suggest that muscle attenuation and area are independently associated with RTD and peak torque; and that area and attenuation demonstrate similar contributions to RTD. PMID- 29342247 TI - PEATH: single-individual haplotyping by a probabilistic evolutionary algorithm with toggling. AB - Motivation: Single-individual haplotyping (SIH) is critical in genomic association studies and genetic diseases analysis. However, most genomic analysis studies do not perform haplotype-phasing analysis due to its complexity. Several computational methods have been developed to solve the SIH problem, but these approaches have not generated sufficiently reliable haplotypes. Results: Here, we propose a novel SIH algorithm, called PEATH (Probabilistic Evolutionary Algorithm with Toggling for Haplotyping), to achieve more accurate and reliable haplotyping. The proposed PEATH method was compared to the most recent algorithms in terms of the phased length, N50 length, switch error rate and minimum error correction. The PEATH algorithm consistently provides the best phase and N50 lengths, as long as possible, given datasets. In addition, verification of the simulation data demonstrated that the PEATH method outperforms other methods on high noisy data. Additionally, the experimental results of a real dataset confirmed that the PEATH method achieved comparable or better accuracy. Availability and implementation: Source code of PEATH is available at https://github.com/jcna99/PEATH. Contact: jkrhee@catholic.ac.kr or sooyong.shin@gmail.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29342248 TI - Clinical considerations of the role of palbociclib in the management of advanced breast cancer patients with and without visceral metastases. AB - Background: This report assesses the efficacy and safety of palbociclib plus endocrine therapy (ET) in women with hormone receptor-positive, human epidermal growth factor receptor 2-negative advanced breast cancer (ABC) with or without visceral metastases. Patients and methods: Pre- and postmenopausal women with disease progression following prior ET (PALOMA-3; N = 521) and postmenopausal women untreated for ABC (PALOMA-2; N = 666) were randomized 2 : 1 to ET (fulvestrant or letrozole, respectively) plus palbociclib or placebo. Progression free survival (PFS), safety, and patient-reported quality of life (QoL) were evaluated by prior treatment and visceral involvement. Results: Visceral metastases incidence was higher in patients with prior resistance to ET (58.3%, PALOMA-3) than in patients naive to ET in the ABC setting (48.6%, PALOMA-2). In patients with prior resistance to ET and visceral metastases, median PFS (mPFS) was 9.2 months with palbociclib plus fulvestrant versus 3.4 months with placebo plus fulvestrant [hazard ratio (HR), 0.47; 95% confidence interval (CI), 0.35 0.61], and objective response rate (ORR) was 28.0% versus 6.7%, respectively. In patients with nonvisceral metastases, mPFS was 16.6 versus 7.3 months, HR 0.53; 95% CI 0.36-0.77. In patients with visceral disease and naive to ET in the advanced disease setting, mPFS was 19.3 months with palbociclib plus letrozole versus 12.9 months with placebo plus letrozole (HR 0.63; 95% CI 0.47-0.85); ORR was 55.1% versus 40.0%; in patients with nonvisceral disease, mPFS was not reached with palbociclib plus letrozole versus 16.8 months with placebo plus letrozole (HR 0.50; 95% CI 0.36-0.70). In patients with prior resistance to ET with visceral metastases, palbociclib plus fulvestrant significantly delayed deterioration of QoL versus placebo plus fulvestrant, whereas patient-reported QoL was maintained with palbociclib plus letrozole in patients naive to endocrine based therapy for ABC. Conclusions: Palbociclib plus ET prolonged mPFS in patients with visceral metastases, increased ORRs, and in patients previously treated for ABC, delayed QoL deterioration, presenting a standard treatment option among patients with visceral metastases amenable to endocrine-based therapy. Clinical trial registration: NCT01942135, NCT01740427. PMID- 29342249 TI - Splice Expression Variation Analysis (SEVA) for inter-tumor heterogeneity of gene isoform usage in cancer. AB - Motivation: Current bioinformatics methods to detect changes in gene isoform usage in distinct phenotypes compare the relative expected isoform usage in phenotypes. These statistics model differences in isoform usage in normal tissues, which have stable regulation of gene splicing. Pathological conditions, such as cancer, can have broken regulation of splicing that increases the heterogeneity of the expression of splice variants. Inferring events with such differential heterogeneity in gene isoform usage requires new statistical approaches. Results: We introduce Splice Expression Variability Analysis (SEVA) to model increased heterogeneity of splice variant usage between conditions (e.g. tumor and normal samples). SEVA uses a rank-based multivariate statistic that compares the variability of junction expression profiles within one condition to the variability within another. Simulated data show that SEVA is unique in modeling heterogeneity of gene isoform usage, and benchmark SEVA's performance against EBSeq, DiffSplice and rMATS that model differential isoform usage instead of heterogeneity. We confirm the accuracy of SEVA in identifying known splice variants in head and neck cancer and perform cross-study validation of novel splice variants. A novel comparison of splice variant heterogeneity between subtypes of head and neck cancer demonstrated unanticipated similarity between the heterogeneity of gene isoform usage in HPV-positive and HPV-negative subtypes and anticipated increased heterogeneity among HPV-negative samples with mutations in genes that regulate the splice variant machinery. These results show that SEVA accurately models differential heterogeneity of gene isoform usage from RNA-seq data. Availability and implementation: SEVA is implemented in the R/Bioconductor package GSReg. Contact: bahman@jhu.edu or favorov@sensi.org or ejfertig@jhmi.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29342250 TI - Pneumococcal Community-Acquired Pneumonia Detected by Serotype-Specific Urinary Antigen Detection Assays. AB - Background: Streptococcus pneumoniae is considered the leading bacterial cause of pneumonia in adults. Yet, it was not commonly detected by traditional culture based and conventional urinary testing in a recent multicenter etiology study of adults hospitalized with community-acquired pneumonia (CAP). We used novel serotype-specific urinary antigen detection (SSUAD) assays to determine whether pneumococcal cases were missed by traditional testing. Methods: We studied adult patients hospitalized with CAP at 5 hospitals in Chicago and Nashville (2010 2012) and enrolled in the Etiology of Pneumonia in the Community (EPIC) study. Traditional diagnostic testing included blood and sputum cultures and conventional urine antigen detection (ie, BinaxNOW). We applied SSUAD assays that target serotypes included in the 13-valent pneumococcal conjugate vaccine (PCV13) to stored residual urine specimens. Results: Among 1736 patients with SSUAD and >=1 traditional pneumococcal test performed, we identified 169 (9.7%) cases of pneumococcal CAP. Traditional tests identified 93 (5.4%) and SSUAD identified 76 (4.4%) additional cases. Among 14 PCV13-serotype cases identified by culture, SSUAD correctly identified the same serotype in all of them. Cases identified by SSUAD vs traditional tests were similar in most demographic and clinical characteristics, although disease severity and procalcitonin concentration were highest among those with positive blood cultures. The proportion of PCV13 serotype cases identified was not significantly different between the first and second July-June study periods (6.4% vs 4.0%). Conclusions: Although restricted to the detection of only 13 serotypes, SSUAD testing substantially increased the detection of pneumococcal pneumonia among adults hospitalized with CAP. PMID- 29342252 TI - Triglyceride-rich lipoprotein cholesterol (TRL-C): the ugly stepsister of LDL-C. PMID- 29342251 TI - Kinetics of Serological Responses in Critically Ill Patients Hospitalized With 2009 Pandemic Influenza A(H1N1) Virus Infection in Canada, 2009-2011. AB - Background: The kinetics of the antibody response during severe influenza are not well documented. Methods: Critically ill patients infected with 2009 pandemic influenza A(H1N1) virus (A[H1N1]pdm09), confirmed by reverse-transcription polymerase chain reaction analysis or seroconversion (defined as a >=4-fold rise in titers), during 2009-2011 in Canada were prospectively studied. Antibody titers in serially collected sera were determined using hemagglutinin inhibition (HAI) and microneutralization assays. Average antibody curves were estimated using linear mixed-effects models and compared by patient outcome, age, and corticosteroid treatment. Results: Of 47 patients with A(H1N1)pdm09 virus infection (median age, 47 years), 59% had baseline HAI titers of <40, and 68% had baseline neutralizing titers of <40. Antibody titers rose quickly after symptom onset, and, by day 14, 83% of patients had HAI titers of >=40, and 80% had neutralizing titers >=40. Baseline HAI titers were significantly higher in patients who died compared with patients who survived; however, the antibody kinetics were similar by patient outcome and corticosteroid treatment. Geometric mean titers over time in older patients were lower than those in younger patients. Conclusions: Critically ill patients with influenza A(H1N1)pdm09 virus infection had strong HAI and neutralizing antibody responses during their illness. Antibody kinetics differed by age but were not associated with patient outcome. PMID- 29342253 TI - Comparison of EQ-5D and 15D instruments for assessing the health-related quality of life in cardiac surgery patients. AB - Aims: Patient-centred outcomes can be measured with different instruments. We compared the performance of two health-related quality-of-life (HRQoL) measures, EQ-5D and 15D, in patients undergoing elective coronary artery bypass grafting (CABG). Methods and results: Patients who were admitted for elective CABG in Kuopio University Hospital Finland in 2012-14 and had completed both instruments concurrently as part of the admission process (n = 182). Follow-up was conducted by postal survey 12 months after the CABG operation. The validity, agreement, and responsiveness to change of both instruments were examined. The mean baseline HRQoL index scores obtained by the EQ-5D and the 15D were 0.795 and 0.859, respectively (P < 0.001 for difference). The agreement between instruments was poor (Spearman's rho = 0.449; P < 0.001). Observed ceiling effects at baseline for the EQ-5D and 15D were 31.9 and 4.4%, respectively. EQ-5D was able to discriminate distinct Canadian Cardiovascular Society groups. During the 1-year follow-up, clinically important improvement was observed in 39.6 and 53.3% of patients with the EQ-5D and the 15D, respectively. However, with the 15D, the number of operated patients required to produce one additional quality-adjusted life year (QALY) was more than twice as high compared with the EQ-5D. Conclusion: EQ-5D and 15D do not appear to be interchangeable when patient-centred outcomes in CABG patients are assessed. The EQ-5D seems to have better discriminative power and known-group validity, whereas the 15D is more sensitive to change over time. These instruments lead to significantly different estimates concerning the number of QALYs gained. PMID- 29342255 TI - Thoracoscopic left atrial appendage clipping as novel treatment option for peri device leakage. PMID- 29342254 TI - Distinctive Desmoplastic 3D Morphology Associated With BRAFV600E in Papillary Thyroid Cancers. AB - Context: Although 60% of papillary thyroid carcinomas are BRAFV600E mutant (PTCV600E), the increased aggressiveness of these cancers is still debated. Objective: For PTCV600E we aimed to further characterize the extent of the stroma and its activation, the three-dimensional (3D) tumor-stroma interface, and the proliferation rates of tumor and stromal fibroblasts. Design: We analyzed exomes, transcriptomes, and images of 364 papillary thyroid carcinoma (PTCs) from The Cancer Genome Atlas (TCGA), including 211 PTCV600E; stained 22 independent PTCs for BRAFV600E and Ki67; sequenced the exomes and stained BRAFV600E in 5 primary tumor blocks and 4 nodal metastases from one patient with PTCV600E; and reconstructed the 3D volumes of one tumor and one metastatic block at histological resolution. Results: In TCGA, BRAFV600E was associated with higher expression of proliferation markers and lower expression of thyroid differentiation markers, independently of tumor purity. Moreover, PTCV600E, in line with their overall lower purity, also had higher expression of fibroblast- and T cell-associated genes and presented more fibrosis. Tumor cells that appeared disconnected on two-dimensional histological slices were revealed to be part of a unique tumor component in the 3D reconstructed microvolumes, and they formed a surprisingly complex connected space, infiltrating a proliferative stroma. Finally, in our PTC set, both stromal fibroblasts and tumor cells presented higher proliferation rates in PTCV600E. Conclusions: Our results support the increased aggressiveness associated with BRAFV600E in PTC and shed light on the important role of the stroma in tumor expansion. The greater and more active fibrotic component predicts better efficiency of combined targeted treatments, as previously proposed for melanomaV600E. PMID- 29342256 TI - Comparison of pregnancy outcomes between maternity waiting home users and non users at hospitals with and without a maternity waiting home: retrospective cohort study. AB - Objective: To examine the impact of a maternity waiting home (MWH) by comparing pregnancy outcomes between users and non-users at hospitals with and without an MWH. Methods: We conducted a retrospective cohort study in Ethiopia comparing one hospital with an MWH (Attat) to a second hospital without one (Butajira). A structured questionnaire among sampled women in 2014 and hospital records from 2011 to 2014 were used to compare sociodemographic characteristics and pregnancy outcomes between Attat MWH users and non-MWH users, Attat MWH users and Butajira, and Attat non-MWH users and Butajira. chi2 or ORs with 95% CIs were calculated. Results: Compared with Attat non-MWH users (n=306) and Butajira women (n=153), Attat MWH users (n=244) were more often multiparous (multipara vs primigravida: OR 4.43 [95% CI 2.94 to 6.68] and OR 3.58 [95% CI 2.24 to 5.73]), less educated (no schooling vs secondary school: OR 2.62 [95% CI 1.53 to 4.46] and OR 5.21 [95% CI 2.83 to 9.61], primary vs secondary school: OR 4.84 [95% CI 2.84 to 8.25] and OR 5.19 [95% CI 2.91 to 9.27]), poor (poor vs wealthy: OR 8.94 [95% CI 5.13 to 15.61] and OR 12.34 [95% CI 6.78 to 22.44] and further from the hospital (2 h 27 min vs 1 h 00 min and 1 h 12 min: OR 3.08 [95% CI 2.50 to 3.80] and OR 2.18 [95% CI 1.78 to 2.67]). Comparing hospital records of Attat MWH users (n=2784) with Attat non-users (n=5423) and Butajira women (n=9472), maternal deaths were 0 vs 20 (0.4%; p=0.001) and 31 (0.3%; p=0.003), stillbirths 38 (1.4%) vs 393 (7.2%) (OR 0.18 [95% CI 0.13 to 0.25]) and 717 (7.6%) (OR 0.17 [95% CI 0.12 to 0.24]) and uterine ruptures 2 (0.1%) vs 40 (1.1%) (OR 0.05 [95% CI 0.01 to 0.19]) and 122 (1.8%) (OR 0.04 (95% CI 0.01 to 0.16]). No significant differences were found regarding maternal deaths and stillbirths between Attat non-users and Butajira women. Conclusions: Attat MWH users had less favourable sociodemographic characteristics but better birth outcomes than Attat non-users and Butajira women. PMID- 29342257 TI - Trajectories of alcohol consumption prior to the diagnosis of type 2 diabetes: a longitudinal case-cohort study. AB - Background: Non-linear associations have been reported between baseline measures of alcohol consumption and type 2 diabetes (T2DM). However, given that drinking varies over the adult life course, we investigated whether differences existed in the longitudinal trajectory of alcohol consumption according to T2DM status. Methods: For a case-cohort (916 incident cases; 7376 controls) of British civil servants nested within the Whitehall II cohort, the self-reported weekly volume of alcohol consumption was traced backwards from the date of diagnosis or censoring to the beginning of the study, covering a period of up to 28 years. Mean trajectories of alcohol intake were estimated separately by diagnosis status using random-effects models. Results: Drinking increased linearly among male cases before diagnosis, but declined among male non-cases prior to censoring. At the time of diagnosis or censoring, consumption among those who developed T2DM was 33.4 g/week greater on average. These patterns were not apparent among women. Here, alcohol intake among female cases was consistently below that of non-cases, with the difference in consumption most pronounced around 15 years prior to diagnosis or censoring, at ~28.0 g/week. Disparities by diagnosis status were attenuated following adjustment for potential confounders, including the frequency of consumption and metabolic factors. Drinking among male and female cases declined following diagnosis. Conclusions: Differences in the weekly volume of alcohol consumption are reported in the years leading up to diagnosis or censoring. Although male and female cases predominantly consumed alcohol at volumes lower than or equal to those who were not diagnosed, these disparities appear to be largely explained by a range of socio-demographic and lifestyle factors. Where disparities are observed between cases and non-cases, adjusted absolute differences are small in magnitude. The decision to drink alcohol should not be motivated by a perceived benefit to T2DM risk. PMID- 29342258 TI - Insulin and Estrogen Independently and Differentially Reduce Macronutrient Intake in Healthy Men. AB - Context: Insulin administration to the central nervous system inhibits food intake, but this effect has been found to be less pronounced in female compared with male organisms. This sex-specific pattern has been suggested to arise from a modulating influence of estrogen signaling on the insulin effect. Objective: We assessed in healthy young men whether pretreatment with transdermal estradiol interacts with the hypophagic effect of central nervous insulin administration via the intranasal pathway. Design, Setting, Participants, and Intervention: According to a 2*2 design, two groups of men (n = 16 in each group) received a 3 day transdermal estradiol (100 ug/24 h) or placebo pretreatment and on two separate mornings were intranasally administered 160 IU regular human insulin or placebo. Main Outcome Measures: We assessed free-choice ad libitum calorie intake from a rich breakfast buffet and relevant blood parameters in samples collected before and after breakfast. Results: Estrogen treatment induced a 3.5-fold increase in serum estradiol concentrations and suppressed serum testosterone concentrations by 70%. Independent of estradiol administration, intranasal insulin reduced the intake of carbohydrates during breakfast, attenuating in particular the consumption of sweet, palatable foods. Estradiol treatment per se decreased protein consumption. We did not find indicators of eating-related interactions between both hormones. Conclusions: Results indicate that, in an acute setting, estrogen does not interact with central nervous insulin signaling in the control of eating behavior in healthy men. Insulin and estradiol rather exert independent inhibiting effects on macronutrient intake. PMID- 29342259 TI - False starts in 'test and start': a qualitative study of reasons for delayed antiretroviral therapy in Swaziland. AB - Background: Test and start, antiretroviral therapy (ART) for all HIV-positive individuals, is a WHO-recommended treatment guideline. In Swaziland, test and start has been evaluated through the MaxART implementation study. This article examines why, in MaxART, some newly diagnosed HIV-positive clients delayed initiating ART. Methods: Thirteen HIV-positive clients who delayed ART for >=90 d after testing were identified from the MaxART study database and interviewed. Interviews were audio recorded, transcribed and translated into English for qualitative content analysis. Results: Respondents had often tested positive several times before initiating ART, with the initial diagnosis sometimes completely unexpected. Repeat testing-and delayed ART-was linked to a desire to come to terms with their diagnosis and prepare for a lifelong treatment course. Clients previously enrolled in pre-ART, particularly with high CD4 counts, had internalized past messages about ART as being non-essential and taking care of oneself through other means. Concerns about ART-related adverse events were weighed against these messages. Worries about inadvertent disclosure and its impact on social and economic relationships also discouraged initiation. Conclusion: Although potentially reducing logistical barriers, expedited ART initiation does not necessarily accommodate some clients' need for time to come to terms with the diagnosis and the prospect of lifelong treatment. PMID- 29342260 TI - Interaction between Staphylococcus aureus and Pseudomonas aeruginosa is beneficial for colonisation and pathogenicity in a mixed biofilm. AB - Debate regarding the co-existence of Staphylococcus aureus and Pseudomonas aeruginosa in wounds remains contentious, with the dominant hypothesis describing a situation akin to niche partitioning, whereby both microorganisms are present but occupy distinct regions of the wound without interacting. In contrast, we hypothesised that these microorganisms do interact during early co-colonisation in a manner beneficial to both bacteria. We assessed competitive interaction between S. aureus and P. aeruginosa in biofilm cultured for 24-72 h and bacterial aggregates analogous to those observed in early (<24 h) biofilm formation, and interaction with human keratinocytes. We observed that S. aureus predominated in biofilm and non-attached bacterial aggregates, acting as a pioneer for the attachment of P. aeruginosa. We report for the first time that S. aureus mediates a significant (P < 0.05) increase in the attachment of P. aeruginosa to human keratinocytes, and that P. aeruginosa promotes an invasive phenotype in S. aureus. We show that co-infected keratinocytes exhibit an intermediate inflammatory response concurrent with impaired wound closure that is in keeping with a sustained proinflammatory response which allows for persistent microbial colonisation. These studies demonstrate that, contrary to the dominant hypothesis, interactions between S. aureus and P. aeruginosa may be an important factor for both colonisation and pathogenicity in the chronic infected wound. PMID- 29342261 TI - Prevalence of smoking during pregnancy and associated risk factors: a cross sectional study in Northern Greece. AB - Background: Many pregnant women smoke despite the extensive data available on the detrimental perinatal outcomes. The aim of this study was to estimate the prevalence of smoking during pregnancy and to identify the factors associated with smoking among pregnant women in Northern Greece. Methods: A sample of pregnant women (mean gestational age: 12.6 weeks) participated in a cross sectional study assessing the prevalence of smoking. Univariate and multivariate logistic regression analyses were used to examine the factors associated with their smoking behavior. Results: A total of 3688 pregnant women (mean age: 31.1 +/- 5.0 years) completed the survey. On the basis of their answers, 36.1% (n = 1330) were smokers before pregnancy and 13.2% (n = 487) were still smoking at the end of the first trimester. Eight hundred and forty-three women (63.4%) gave up smoking, apparently motivated by their pregnancy. A multivariate analysis showed an independent positive association of nulliparity, Greek ethnicity, age >35 years and a BMI > 30 with smoking before pregnancy. Smoking during pregnancy was more common among naturally conceived pregnancies and women with a BMI > 30.Cessation rates were lower for naturally conceived pregnancies, immigrants and multiparous women. Conclusion: About one third of women who smoked before pregnancy continued to smoke during pregnancy. Naturally conceiving, multiparous and immigrant women are less likely to quit smoking when pregnant. Tailored smoking cessation interventions should target women early in their pregnancy. PMID- 29342262 TI - Preliminary study of 1940 nm thulium laser usage in peroral endoscopic myotomy for achalasia. AB - Esophageal achalasia is a type of motility disorder characterized by incomplete relaxation of lower esophageal sphincter (LES) and absence of esophageal peristalsis. Peroral endoscopic myotomy (POEM) is a new treatment option for achalasia that is less invasive, more effective, and safe as compared to surgery. High-frequency electrotome is commonly used in POEM, but takes longer time to make the tunnel in the esophagus and causes many complications. The thulium laser decreases the risk of bleeding and perforation in endoscopy but has not been reported in digestive diseases, especially in POEM. Therefore, the aim of this study is to evaluate the feasibility of the 1940 nm thulium laser in POEM. From March 2015 to August 2015, five patients with achalasia at the Digestive department, Beijing Friendship Hospital, Capital Medical University, Beijing, China were included. Before the procedure, the patients' gender, age, and duration of symptoms were recorded. Eckardt symptom score and LES thickness, which measured by endoscopic ultrasonography, were recorded. While the subtypes of achalasia (according to the Chicago classification), lower esophagus sphincter resting pressure (LESRP) and integrated relaxation pressure (IRP) were measured by HRM for all patients. Barium esophagram was also used to rule out anatomical lesions, esophageal varices, or neoplasia, which may cause similar symptoms. All examinations were performed one week before POEM. POEM was performed with the 1940 nm thulium laser under general anesthesia. Eckardt score, procedure duration, myotomy length, and complications were recorded one week after POEM. All the patients were followed-up at two weeks and four weeks after POEM. POEM was successfully performed in all five patients. The mean age of the patients was 38.8 years (24-54 years). Achalasia subtypes were type I (n = 1), II (n = 2), and III (n = 2). The operation duration was 186, 180, 111, 75, and 126 minutes for the five cases. Pre/postprocedure Eckardt scores were 3/0, 7/0, 5/1, 6/0, and 9/0. Pre/postprocedure LESRP (mmHg) were 45.3/26.4, 18.0/1.1, 25.8/10.4, 16.5/11.2, and 24.2/20.8. Pre/postprocedure IRP (mmHg) were 27.3/15.5, 15.4/4.2, 5.7/6.8, 15.5/10.1, and 13.1/14, respectively. No adverse events occurred during the procedure. After POEM, subcutaneous emphysema occurred in case 1 on the first day, which relieved spontaneously after two days without special intervention. Infection occurred in case 5 on the day of POEM was healed with antibiotics three days later. The 1940 nm thulium laser is feasible for POEM procedure. Further studies are needed to determine whether the 1940 nm thulium laser is better than high-frequency electrotome. PMID- 29342263 TI - Sri Lanka's post-tsunami health system recovery: a qualitative analysis of physician perspectives. AB - Background: The 2004 Indian Ocean tsunami caused significant damage to the health system in Sri Lanka. Rebuilding infrastructure and improving the mental health system were targets of recovery policies. Retrospective analyses of the post tsunami health system recovery in Sri Lanka lack the perspectives of local stakeholders, including health care providers. Methods: In 2014 we interviewed 23 Sri Lankan physicians from the Eastern and Southern regions. Participants were recruited with snowball sampling. We used a content analysis approach in analysing the transcriptions. Results: Sri Lankan physicians critiqued governance, sustainability and equity in the health system recovery. They held leadership roles as facilitators and sustainers of specific projects but were rarely formally consulted in recovery strategic planning. They identified instances of poor coordination among partners, corruption trends, local resource mismatches, regional resource disparities and the influence of the Sri Lankan civil war. Conclusions: Post-tsunami health system recovery planning and implementation in Sri Lanka did not involve local physician stakeholders in ways that have been prioritized more recently in other recovery frameworks. Despite limited formal inclusion, local physicians developed significant leadership roles that have informed their critical perspectives on the health system recovery. PMID- 29342265 TI - Oesophageal duplication cyst mimicking cardiac mass. PMID- 29342264 TI - Effect of Continuous Glucose Monitoring on Glycemic Control, Acute Admissions, and Quality of Life: A Real-World Study. AB - Context: Randomized controlled trials evaluating real-time continuous glucose monitoring (RT-CGM) patients with type 1 diabetes (T1D) show improved glycemic control, but limited data are available on real-world use. Objective: To assess impact of RT-CGM in real-world settings on glycemic control, hospital admissions, work absenteeism, and quality of life (QOL). Design: Prospective, observational, multicenter, cohort study. Participants: A total of 515 adults with T1D on continuous subcutaneous insulin infusion (CSII) therapy starting in the Belgian RT-CGM reimbursement program. Intervention: Initiation of RT-CGM reimbursement. Main Outcome Measure: Hemoglobin A1c (HbA1c) evolution from baseline to 12 months. Results: Between September 1, 2014, and December 31, 2016, 515 adults entered the reimbursement system. Over this period, 417 (81%) patients used RT CGM for at least 12 months. Baseline HbA1c was 7.7 +/- 0.9% (61 +/- 9.8 mmol/mol) and decreased to 7.4 +/- 0.8% (57 +/- 8.7 mmol/mol) at 12 months (P < 0.0001). Subjects who started RT-CGM because of insufficient glycemic control showed stronger decrease in HbA1c at 4, 8, and 12 months compared with patients who started because of hypoglycemia or pregnancy. In the year preceding reimbursement, 16% of patients were hospitalized for severe hypoglycemia or ketoacidosis in contrast to 4% (P < 0.0005) the following year, with decrease in admission days from 54 to 18 per 100 patient years (P < 0.0005). In the same period, work absenteeism decreased and QOL improved significantly, with strong decline in fear of hypoglycemia. Conclusion: Sensor-augmented pump therapy in patients with T1D followed in specialized centers improves HbA1c, fear of hypoglycemia, and QOL, whereas work absenteeism and admissions for acute diabetes complications decreased. PMID- 29342267 TI - Safety of Single-Dose Primaquine in G6PD-Deficient and G6PD-Normal Males in Mali Without Malaria: An Open-Label, Phase 1, Dose-Adjustment Trial. AB - Background: The World Health Organization recommendation on the use of a single low dose of primaquine (SLD-PQ) to reduce Plasmodium falciparum malaria transmission requires more safety data. Methods: We conducted an open-label, nonrandomized, dose-adjustment trial of the safety of 3 single doses of primaquine in glucose-6-phosphate dehydrogenase (G6PD)-deficient adult males in Mali, followed by an assessment of safety in G6PD-deficient boys aged 11-17 years and those aged 5-10 years, including G6PD-normal control groups. The primary outcome was the greatest within-person percentage drop in hemoglobin concentration within 10 days after treatment. Results: Fifty-one participants were included in analysis. G6PD-deficient adult males received 0.40, 0.45, or 0.50 mg/kg of SLD-PQ. G6PD-deficient boys received 0.40 mg/kg of SLD-PQ. There was no evidence of symptomatic hemolysis, and adverse events considered related to study drug (n = 4) were mild. The mean largest within-person percentage change in hemoglobin level between days 0 and 10 was -9.7% (95% confidence interval [CI], -13.5% to -5.90%) in G6PD-deficient adults receiving 0.50 mg/kg of SLD-PQ, 11.5% (95% CI, -16.1% to -6.96%) in G6PD-deficient boys aged 11-17 years, and 9.61% (95% CI, -7.59% to -13.9%) in G6PD-deficient boys aged 5-10 years. The lowest hemoglobin concentration at any point during the study was 92 g/L. Conclusion: SLD-PQ doses between 0.40 and 0.50 mg/kg were well tolerated in G6PD deficient males in Mali. Clinical Trials Registration: NCT02535767. PMID- 29342266 TI - Causes, Patterns, and Severity of Androgen Excess in 1205 Consecutively Recruited Women. AB - Context: Androgen excess in women is predominantly due to underlying polycystic ovary syndrome (PCOS). However, there is a lack of clarity regarding patterns and severity of androgen excess that should be considered predictive of non-PCOS pathology. Objective: We examined the diagnostic utility of simultaneous measurement of serum dehydroepiandrosterone sulfate (DHEAS), androstenedione (A4), and testosterone (T) to delineate biochemical signatures and cutoffs predictive of non-PCOS disorders in women with androgen excess. Design: Retrospective review of all women undergoing serum androgen measurement at a large tertiary referral center between 2012 and 2016. Serum A4 and T were measured by tandem mass spectrometry and DHEAS by immunoassay. Patients with at least one increased serum androgen underwent phenotyping by clinical notes review. Results: In 1205 women, DHEAS, A4, and T were measured simultaneously. PCOS was the most common diagnosis in premenopausal (89%) and postmenopausal women (29%). A4 was increased in all adrenocortical carcinoma (ACC) cases (n = 15) and T in all ovarian hyperthecosis (OHT) cases (n = 7); all but one case of congenital adrenal hyperplasia (CAH; n = 18) were identified by increased levels of A4 and/or T. In premenopausal women, CAH was a prevalent cause of severe A4 (59%) and T (43%) excess; severe DHEAS excess was predominantly due to PCOS (80%). In postmenopausal women, all cases of severe DHEAS and A4 excess were caused by ACC and severe T excess equally by ACC and OHT. Conclusions: Pattern and severity of androgen excess are important predictors of non-PCOS pathology and may be used to guide further investigations as appropriate. PMID- 29342268 TI - Reduced Expression of Mismatch Repair Genes MSH6/MSH2 Directly Promotes Pituitary Tumor Growth via the ATR-Chk1 Pathway. AB - Context: The mechanisms of pituitary adenoma (PA) pathogenesis and proliferation remain largely unknown. Objectives: To clarify the role of mismatch repair (MMR) genes in the molecular mechanism of PA proliferation. Design: We performed quantitative analyses by real-time polymerase chain reaction and immunohistochemistry to detect MMR gene and protein expression in human PAs (n = 47). We also performed correlation analyses of expression levels and tumor volume doubling time (TVDT; n = 31). Specifically, correlation analyses were performed between genes with significant correlation and ataxiatelangiectasia and Rad3 related (ATR) expression in cell-cycle regulatory mechanism ATR-checkpoint kinase 1 (Chk1) pathway (n = 93). We investigated the effect of reduced gene expression on cell proliferation and ATR gene expression in AtT-20ins cells and primary cultures of human PAs. Results: Expression of mutS homologs 6 and 2 (MSH6 and MSH2) was positively associated with TVDT (R = 0.52, P = 0.003, and R = 0.44, P = 0.01), as were the corresponding protein levels. Gene expression was positively associated with ATR expression (R = 0.47, P < 0.00001, and R = 0.49, P < 0.00001). In AtT-20ins, the reduction of MSH6 and/or MSH2 expression by small interfering RNA significantly promoted cell proliferation by decreasing ATR expression. This effect was also observed in primary culture. Conclusion: Reduction of MSH6 and MSH2 expression at the messenger RNA and protein levels could be involved in direct PA proliferation by promoting cell-cycle progression or decreasing the rate of apoptosis through interference with the function of the ATR-Chk1 pathway. PMID- 29342269 TI - A Silent Epidemic: The Prevalence, Incidence and Persistence of Mycoplasma genitalium Among Young, Asymptomatic High-Risk Women in the United States. AB - Background: Mycoplasma genitalium can result in pelvic inflammatory disease and adverse pregnancy outcomes. We analyzed data collected from a prospective study of asymptomatic bacterial vaginosis (BV) to determine the natural history of M. genitalium. Methods: Women aged 15-25 years, with asymptomatic BV and >=2 risk factors for sexually transmitted infection were recruited from 10 sites throughout the United States. Vaginal swab samples were collected at enrollment and through home-based testing every 2 months over 12 months. M. genitalium nucleic acid amplification testing was performed for M. genitalium using transcription-mediated assays (Hologic). The prevalence, incidence, and persistence of M. genitalium, defined as all positive specimens during follow-up, were estimated with 95% confidence intervals (CIs). Adjusted odds ratios (AOR) were calculated using logistic and Poisson regression to evaluate participant characteristics associated with M. genitalium infection. Results: Among 1139 women, 233 were M. genitalium positive, for a prevalence of 20.5% (95% CI, 18.2% 22.9%); 42 of 204 had persistent M. genitalium (20.6%). Among 801 M. genitalium negative women at baseline, the M. genitalium incidence was 36.6 per 100 person years (95% CI, 32.4-41.3). Black race (AOR, 1.92; 95% CI, 1.09-3.38), age <=21 years (1.40; 1.03-1.91), and prior pregnancy (1.36; 1.00-1.85) were associated with prevalent M. genitalium; only black race was associated with incident M. genitalium (P = .03). Conclusions: We identified high rates of prevalent, incident, and persistent M. genitalium infections among young, high-risk women with asymptomatic BV, supporting the need for clinical trials to evaluate the impact of M. genitalium screening on female reproductive health outcomes. PMID- 29342270 TI - Whole-genome analysis reveals the evolution and transmission of an MDR DH/NAP11/106 Clostridium difficile clone in a paediatric hospital. AB - Background: Clostridium difficile strain DH/NAP11/106, a relatively antibiotic susceptible strain, is now the most common cause of C. difficile infection (CDI) among adults in the USA. Objectives: To identify mechanisms underlying the evolution and transmission of an MDR DH/NAP11/106 clone. Methods: WGS (Illumina MiSeq), restriction endonuclease analysis (REA) and antibiotic susceptibility testing were performed on 134 C. difficile isolates collected from paediatric patients with CDI over a 2 year period. Results: Thirty-one of 134 (23%) isolates were REA group DH. Pairwise single-nucleotide variant (SNV) analyses identified a DH clone causing seven instances of CDI in two patients. During the 337 days between the first and second CDI, Patient 1 (P1) received 313 days of antibiotic therapy. Clindamycin and rifaximin resistance, and reduced vancomycin susceptibility (MIC 0.5-2 mg/L), were newly identified in the relapsed isolate. This MDR clone was transmitted to Patient 2 (P2) while P1 and P2 received care in adjacent private rooms. P1 and P2 each developed two additional CDI relapses. Comparative genomics analyses demonstrated SNVs in multiple antibiotic resistance genes, including rpoB (rifaximin resistance), gyrB and a gene encoding PBP; gyrB and PBP mutations did not consistently confer a resistance phenotype. The clone also acquired a 46 000 bp genomic element, likely a conjugative plasmid, which contained ermB (clindamycin resistance). The element shared 99% identity with the genomic sequence of Faecalibacterium prausnitzii, an enteric commensal. Conclusions: These data highlight the emergence of MDR in C. difficile strain DH/NAP11/106 through multiple independent mechanisms probably as a consequence of profound antibiotic pressure. PMID- 29342271 TI - MELODI: Mining Enriched Literature Objects to Derive Intermediates. AB - Background: The scientific literature contains a wealth of information from different fields on potential disease mechanisms. However, identifying and prioritizing mechanisms for further analytical evaluation presents enormous challenges in terms of the quantity and diversity of published research. The application of data mining approaches to the literature offers the potential to identify and prioritize mechanisms for more focused and detailed analysis. Methods: Here we present MELODI, a literature mining platform that can identify mechanistic pathways between any two biomedical concepts. Results: Two case studies demonstrate the potential uses of MELODI and how it can generate hypotheses for further investigation. First, an analysis of ETS-related gene ERG and prostate cancer derives the intermediate transcription factor SP1, recently confirmed to be physically interacting with ERG. Second, examining the relationship between a new potential risk factor for pancreatic cancer identifies possible mechanistic insights which can be studied in vitro. Conclusions: We have demonstrated the possible applications of MELODI, including two case studies. MELODI has been implemented as a Python/Django web application, and is freely available to use at [www.melodi.biocompute.org.uk]. PMID- 29342272 TI - Daily decision-making about food during pregnancy: a New Zealand study. AB - Pregnancy has always been a life-changing event for women and their families, but societal concern about pregnancy and motherhood has become intense in the digital age. The role of health promotion agencies and others supplying health-related resources about lifestyle behaviours is both important and in need of scrutiny. Ever increasing advice for pregnant women, their families and health professionals, abounds. This study of decision making during pregnancy investigated how women made everyday decisions during pregnancy about food and drink, as well as dietary supplements and medications, alcohol and recreational drugs. This qualitative interview study was a side-arm to a double-blind randomized, placebo-controlled trial conducted with pregnant women in Wellington New Zealand, 2013-2016. Data from interviews with 20 women were analysed using inductive thematic analysis. In relation to decision-making about lifestyle behaviours, five themes emerged-Information about food; Wanted and unwanted advice; Worry, anxiety and indecision; Making daily decisions about food; Changes in decision making over time. Participating women talked more about food selection and restriction advice than any other lifestyle topic. Analysis demonstrated concern about information accuracy and overload from multiple, diverse sources. Women described learning how to assess resource credibility, how to develop decision-making skills, and who to trust. The study raises important questions about how the health information environment, despite best intentions, can be confusing or potentially harmful. The study underlines the continued importance of the role health professionals have in not only interpreting information to discuss individualized advice, but also in empowering pregnant women to develop lifestyle-related decision-making skills. PMID- 29342273 TI - Hypermethylation of EIF4E promoter is associated with early onset of gastric cancer. AB - Although gastric cancer (GC) in young adults (<= 45 years) accounts for fewer than 10% of newly diagnosed cases, the young patients are more likely to have advanced disease at presentation compared with elderly patients. Previous studies have identified that the DNA methylation of genomes are different during aging. Our study aimed to explore the association between DNA methylation and the onset of GC. We applied Illumina HumanMethylation450 BeadChip to examine methylation expression profiles and compared methylation expression patterns in five early onset GC patients and seven elderly patients. Additionally, we evaluated the associations of methylation expression with different clinicopathological characteristics of GC. Our results showed that the pattern of genome-wide methylation expression was significantly different between early onset and elderly GC. The top 10 hypomethylation and hypermethylation CpG sites were selected for further analyses in The Cancer Genome Atlas (TCGA) database. We found that the hypermethylation of cg11037477, located at the promoter of EIF4E, was significantly associated with age at diagnosis and the expression of EIF4E. Besides, GC patients with high level of cg11037477 were more likely to have advance disease with T3/T4 invasion and III/IV stage. The cg11037477 hypermethylation and EIF4E down-expression were significantly related to poor survival of GC patients. Our study provides new insights into the molecular mechanism of early onset patients with GC and suggests that methylation of cg11037477 and expression of EIF4E may act as prognostic markers in GC. PMID- 29342274 TI - Editorial. PMID- 29342276 TI - A Predictive, Quantitative Model of Spiking Activity and Stimulus-Secretion Coupling in Oxytocin Neurons. AB - Oxytocin neurons of the rat hypothalamus project to the posterior pituitary, where they secrete their products into the bloodstream. The pattern and quantity of that release depends on the afferent inputs to the neurons, on their intrinsic membrane properties, and on nonlinear interactions between spiking activity and exocytosis: A given number of spikes will trigger more secretion when they arrive close together. Here we present a quantitative computational model of oxytocin neurons that can replicate the results of a wide variety of published experiments. The spiking model mimics electrophysiological data of oxytocin cells responding to cholecystokinin (CCK), a peptide produced in the gut after food intake. The secretion model matches results from in vitro experiments on stimulus secretion coupling in the posterior pituitary. We mimic the plasma clearance of oxytocin with a two-compartment model, replicating the dynamics observed experimentally after infusion and injection of oxytocin. Combining these models allows us to infer, from measurements of oxytocin in plasma, the spiking activity of the oxytocin neurons that produced that secretion. We have tested these inferences with experimental data on oxytocin secretion and spiking activity in response to intravenous injections of CCK. We show how intrinsic mechanisms of the oxytocin neurons determine this relationship: In particular, we show that the presence of an afterhyperpolarization (AHP) in oxytocin neurons dramatically reduces the variability of their spiking activity and even more markedly reduces the variability of oxytocin secretion. The AHP thus acts as a filter, protecting the final product of oxytocin cells from noisy fluctuations. PMID- 29342275 TI - Hot-spot KIF5A mutations cause familial ALS. AB - Heterozygous missense mutations in the N-terminal motor or coiled-coil domains of the kinesin family member 5A (KIF5A) gene cause monogenic spastic paraplegia (HSP10) and Charcot-Marie-Tooth disease type 2 (CMT2). Moreover, heterozygous de novo frame-shift mutations in the C-terminal domain of KIF5A are associated with neonatal intractable myoclonus, a neurodevelopmental syndrome. These findings, together with the observation that many of the disease genes associated with amyotrophic lateral sclerosis disrupt cytoskeletal function and intracellular transport, led us to hypothesize that mutations in KIF5A are also a cause of amyotrophic lateral sclerosis. Using whole exome sequencing followed by rare variant analysis of 426 patients with familial amyotrophic lateral sclerosis and 6137 control subjects, we detected an enrichment of KIF5A splice-site mutations in amyotrophic lateral sclerosis (2/426 compared to 0/6137 in controls; P = 4.2 * 10-3), both located in a hot-spot in the C-terminus of the protein and predicted to affect splicing exon 27. We additionally show co-segregation with amyotrophic lateral sclerosis of two canonical splice-site mutations in two families. Investigation of lymphoblast cell lines from patients with KIF5A splice-site mutations revealed the loss of mutant RNA expression and suggested haploinsufficiency as the most probable underlying molecular mechanism. Furthermore, mRNA sequencing of a rare non-synonymous missense mutation (predicting p.Arg1007Gly) located in the C-terminus of the protein shortly upstream of the splice donor of exon 27 revealed defective KIF5A pre-mRNA splicing in respective patient-derived cell lines owing to abrogation of the donor site. Finally, the non-synonymous single nucleotide variant rs113247976 (minor allele frequency = 1.00% in controls, n = 6137), also located in the C terminal region [p.(Pro986Leu) in exon 26], was significantly enriched in familial amyotrophic lateral sclerosis patients (minor allele frequency = 3.40%; P = 1.28 * 10-7). Our study demonstrates that mutations located specifically in a C-terminal hotspot of KIF5A can cause a classical amyotrophic lateral sclerosis phenotype, and underline the involvement of intracellular transport processes in amyotrophic lateral sclerosis pathogenesis. PMID- 29342277 TI - Finding Nemo: hybrid assembly with Oxford Nanopore and Illumina reads greatly improves the clownfish (Amphiprion ocellaris) genome assembly. AB - Background: Some of the most widely recognized coral reef fishes are clownfish or anemonefish, members of the family Pomacentridae (subfamily: Amphiprioninae). They are popular aquarium species due to their bright colours, adaptability to captivity, and fascinating behavior. Their breeding biology (sequential hermaphrodites) and symbiotic mutualism with sea anemones have attracted much scientific interest. Moreover, there are some curious geographic-based phenotypes that warrant investigation. Leveraging on the advancement in Nanopore long read technology, we report the first hybrid assembly of the clown anemonefish (Amphiprion ocellaris) genome utilizing Illumina and Nanopore reads, further demonstrating the substantial impact of modest long read sequencing data sets on improving genome assembly statistics. Results: We generated 43 Gb of short Illumina reads and 9 Gb of long Nanopore reads, representing approximate genome coverage of 54* and 11*, respectively, based on the range of estimated k-mer predicted genome sizes of between 791 and 967 Mbp. The final assembled genome is contained in 6404 scaffolds with an accumulated length of 880 Mb (96.3% BUSCO calculated genome completeness). Compared with the Illumina-only assembly, the hybrid approach generated 94% fewer scaffolds with an 18-fold increase in N50 length (401 kb) and increased the genome completeness by an additional 16%. A total of 27 240 high-quality protein-coding genes were predicted from the clown anemonefish, 26 211 (96%) of which were annotated functionally with information from either sequence homology or protein signature searches. Conclusions: We present the first genome of any anemonefish and demonstrate the value of low coverage (~11*) long Nanopore read sequencing in improving both genome assembly contiguity and completeness. The near-complete assembly of the A. ocellaris genome will be an invaluable molecular resource for supporting a range of genetic, genomic, and phylogenetic studies specifically for clownfish and more generally for other related fish species of the family Pomacentridae. PMID- 29342278 TI - DOSIMETRY OF ADULT AND PEDIATRIC PATIENTS FOR COMMON DIGITAL RADIOGRAPHY EXAMINATIONS. AB - The present work reports dosimetry data on adult and pediatric patients for some common radiographic examinations during the standard hospital routine. The measurements are the part of quality assurance program to determine radiation exposures to patients in these examinations. The entrance skin doses (ESDs) of the patients were measured from 2451 projection for 12 diagnostic examinations in digital radiography (DR). The ESDs in adult patient were measured using thermoluminescence dosemeters placed on the skin of the patient. In pediatric patients, ESDs were evaluated from the measured air kerma with ionization chamber, patient specific parameters and known values of machine exposure factors during examinations. The third quartile values of ESDs are proposed as local diagnostic reference levels (LDRLs) for radiographic examinations having statistical significant number of exposures (n >= 20). The proposed LDRL values are also compared with earlier published LDRL/DRL values. PMID- 29342279 TI - Incidence and predictors of post-transplant lymphoproliferative disease after kidney transplantation during adulthood and childhood: a registry study. AB - Background: Differences in the epidemiology of post-transplant lymphoproliferative disease (PTLD) between adult and paediatric kidney transplant recipients remain unclear. Methods: Using the Australian and New Zealand Dialysis and Transplant Registry (1963-2015), the cumulative incidences of PTLD in children (age <20 years) and adults were calculated using a competing risk of death model and compared with age-matched population-based data using standardized incidence ratios (SIRs). Risk factors for PTLD were assessed using Cox proportional hazards regression. Results: Among 23 477 patients (92% adult, 60% male), 505 developed PTLD, with 50 (10%) occurring in childhood recipients. The 25-year cumulative incidence of PTLD was 3.3% [95% confidence interval (CI) 2.9-3.6] for adult recipients and 3.6% (95% CI 2.7-4.8) for childhood recipients. Childhood recipients had a 30-fold increased risk of lymphoma compared with the age-matched general population [SIR 29.5 (95% CI 21.9-38.8)], higher than adult recipients [SIR 8.4 (95% CI 7.7-9.2)]. Epstein-Barr virus (EBV)-negative recipient serology [adjusted hazard ratio (aHR) 3.33 (95% CI 2.21-5.01), P < 0.001], year of transplantation [aHR 0.93 for each year after the year 2000 (95% CI 0.88-0.99), P = 0.02], induction with an agent other than anti-CD25 monoclonal antibody [aHR 2.07 (95% CI 1.16-3.70), P = 0.01] and having diabetes [aHR 3.49 (95% CI 2.26-5.38), P < 0.001] were independently associated with PTLD. Conclusions: Lymphoma occurs at similar rates in adult and paediatric recipients, but has been decreasing since the year 2000. EBV-negative patients and those with diabetes or induction agent other than anti-CD25 monoclonal antibody are at substantially increased risk of PTLD. PMID- 29342281 TI - Phenotypic analysis of HIV-1 E157Q integrase polymorphism and impact on virological outcome in patients initiating an integrase inhibitor-based regimen. AB - Objectives: To assess the phenotypic susceptibility of the E157Q polymorphism in HIV-1 integrase (IN) and the virological outcome of patients infected with E157Q mutated virus initiating an IN inhibitor (INI)-based regimen. Methods: This was a multicentre study assessing IN sequences from INI-naive patients among 17 French HIV clinical centres. E157Q site-directed mutants in pNL4.3 and pCRF02_AG contexts were assessed in a recombinant phenotypic assay. Results: Prevalence of the E157Q polymorphism was 2.7% among 8528 IN sequences from INI-naive patients and its distribution was 1.7%, 5.6% and 2.2% in B, CRF02_AG and various non-B subtypes, respectively. Thirty-nine INI-naive patients with E157Q-mutated virus initiated an INI-based regimen. Among them, 15 had a viral load (VL) <50 copies/mL at initiation and virological suppression was maintained during the first year of follow-up in all but two exhibiting a viral blip. Twenty-four patients had a VL > 50 copies/mL at the time of INI-based regimen initiation. Among them eight were receiving a first-line regimen and the only two patients who did not reach VL < 50 copies/mL at week 24 were receiving elvitegravir. The 16 remaining patients were ART experienced in virological failure with drug resistant viruses displaying several virological outcomes independently of the genotypic susceptibility score. Phenotypic analyses showed a fold change in EC50 of 0.6, 0.9 and 1.9 for raltegravir, dolutegravir and elvitegravir, respectively, in a subtype B context, and 1.1, 1.9 and 2.4 for raltegravir, dolutegravir and elvitegravir, respectively, in a CRF02_AG context. Conclusions: Assessment of virological response in 39 patients initiating an INI-based regimen with E157Q mutated virus, in combination with phenotypic analysis, suggests that particular attention should be paid to antiretroviral-naive patients and dolutegravir should be preferentially used in these patients. PMID- 29342280 TI - Epigenetic Differentiation of Natural Populations of Lilium bosniacum Associated with Contrasting Habitat Conditions. AB - Epigenetic variation in natural populations with contrasting habitats might be an important element, in addition to the genetic variation, in plant adaptation to environmental stress. Here, we assessed genetic, epigenetic, and cytogenetic structure of the three Lilium bosniacum populations growing on distinct habitats. One population was growing under habitual ecological conditions for this species and the other two were growing under stress associated with high altitude and serpentine soil. Amplified fragment length polymorphism and methylation-sensitive amplification polymorphism analyses revealed that the three populations did not differentiate genetically, but were clearly separated in three distinct clusters according to DNA methylation profiles. Principal coordinate analysis showed that overall epigenetic variation was closely related to habitat conditions. A new methylation-sensitive amplification polymorphism scoring approach allowed identification of mainly unmethylated (phiST = 0.190) and fully CpG methylated (phiST = 0.118) subepiloci playing a role in overall population differentiation, in comparison with hemimethylated sites (phiST = 0.073). In addition, unusual rDNA repatterning and the presence of B chromosomes bearing 5S rDNA loci were recorded in the population growing on serpentine soil, suggesting dynamic chromosome rearrangements probably linked to global genome demethylation, which might have reactivated some mobile elements. We discuss our results considering our earlier data on morphology and leaf anatomy of several L. bosniacum populations, and suggest a possible role of epigenetics as a key element in population differentiation associated with environmental stress in these particular lily populations. PMID- 29342282 TI - Membrane fluxes, bypass flows, and sodium stress in rice: the influence of silicon. AB - Provision of silicon (Si) to roots of rice (Oryza sativa L.) can alleviate salt stress by blocking apoplastic, transpirational bypass flow of Na+ from root to shoot. However, little is known about how Si affects Na+ fluxes across cell membranes. Here, we measured radiotracer fluxes of 24Na+, plasma membrane depolarization, tissue ion accumulation, and transpirational bypass flow, to examine the influence of Si on Na+ transport patterns in hydroponically grown, salt-sensitive (cv. IR29) and salt-tolerant (cv. Pokkali) rice. Si increased growth and lowered [Na+] in shoots of both cultivars, with minor effects in roots; neither root nor shoot [K+] were affected. In IR29, Si lowered shoot [Na+] via a large reduction in bypass flow, while in Pokkali, where bypass flow was small and not affected by Si, this was achieved mainly via a growth dilution of shoot Na+. Si had no effect on unidirectional 24Na+ fluxes (influx and efflux), or on Na+-stimulated plasma-membrane depolarization, in either IR29 or Pokkali. We conclude that, while Si can reduce Na+ translocation via bypass flow in some (but not all) rice cultivars, it does not affect unidirectional Na+ transport or Na+ cycling in roots, either across root cell membranes or within the bulk root apoplast. PMID- 29342284 TI - Two Ways to Kill a Patient. AB - According to the Standard View, a doctor who withdraws life-sustaining treatment does not kill the patient but rather allows the patient to die-an important distinction, according to some. I argue that killing (and causing death) can be understood in either of two ways, and given the relevant understanding, the Standard View is insulated from typical criticisms. I conclude by noting several problems for the Standard View that remain to be fully addressed. PMID- 29342283 TI - Non-typhoidal Salmonella serovars associated with invasive and non-invasive disease in the Lao People's Democratic Republic. AB - Background: Invasive non-typhoidal Salmonella (iNTS) disease is a well-described cause of mortality in children and human immunodeficiency virus (HIV)-infected adults in sub-Saharan Africa. Additionally, there is an ill-defined burden of iNTS disease in Southeast Asia. Methods: Aiming to investigate the causative serovars of non-invasive and iNTS disease and their associated antimicrobial susceptibility profiles in the Lao People's Democratic Republic, we performed multilocus sequence typing and antimicrobial susceptibility profiling on 168 NTS (63 blood and 105 faecal) organisms isolated in Lao between 2000 and 2012. Results: Six different serovars were isolated from blood; Salmonella enterica serovar Enteritidis (n=28), S. enterica serovar Typhimurium (n=19) and S. enterica serovar Choleraesuis (n=11) accounted for >90% (58/63) of the iNTS disease cases. In contrast, the isolates from diarrhoeal faeces were comprised of 18 different serovars, the mostly commonly identified being S. enterica Typhimurium (n=28), S. enterica Weltevreden (n=14) and S. enterica Stanley (n=15). S. enterica Enteritidis and S. enterica Choleraesuis were significantly more associated with systemic disease than diarrhoeal disease in this patient group (p<0.001). Conclusions: We find a differing distribution of Salmonella sequence types/serovars between those causing iNTS disease and non-invasive disease in Lao. We conclude that there is a small but not insignificant burden of iNTS disease in Lao. Further clinical and epidemiological investigations are required to assess mortality and the role of comorbidities such as HIV. PMID- 29342285 TI - Serial Participation and the Ethics of Phase 1 Healthy Volunteer Research. AB - Phase 1 healthy volunteer clinical trials-which financially compensate subjects in tests of drug toxicity levels and side effects-appear to place pressure on each joint of the moral framework justifying research. In this article, we review concerns about phase 1 trials as they have been framed in the bioethics literature, including undue inducement and coercion, unjust exploitation, and worries about compromised data validity. We then revisit these concerns in light of the lived experiences of serial participants who are income-dependent on phase 1 trials. We show how participant experiences shift attention from discrete exchanges, behaviors, and events in the research enterprise to the ongoing and dynamic patterns of serial participation in which individual decision-making is embedded in collective social and economic conditions and shaped by institutional policies. We argue in particular for the ethical significance of structurally diminished voluntariness, routine powerlessness in setting the terms of exchange, and incentive structures that may promote pharmaceutical interests but encourage phase 1 healthy volunteers to skirt important rules. PMID- 29342286 TI - The Ethics of General Population Preventive Genomic Sequencing: Rights and Social Justice. AB - Advances in DNA sequencing technology open new possibilities for public health genomics, especially in the form of general population preventive genomic sequencing (PGS). Such screening programs would sit at the intersection of public health and preventive health care, and thereby at once invite and resist the use of clinical ethics and public health ethics frameworks. Despite their differences, these ethics frameworks traditionally share a central concern for individual rights. We examine two putative individual rights-the right not to know, and the child's right to an open future-frequently invoked in discussions of predictive genetic testing, in order to explore their potential contribution to evaluating this new practice. Ultimately, we conclude that traditional clinical and public health ethics frameworks, and these two rights in particular, should be complemented by a social justice perspective in order adequately to characterize the ethical dimensions of general population PGS programs. PMID- 29342288 TI - Association between ABCG2 rs2231142 and poor response to allopurinol: replication and meta-analysis. AB - Objective: ABCG2 rs2231142 (Q141K) has been reported to be associated with poor response to allopurinol, while there are conflicting data on the association between the genetically independent ABCG2 rs10011796 variant and allopurinol response. The aim of this study was to replicate the association of ABCG2 rs2231142 and rs10011796 with allopurinol response and perform a meta-analysis. Methods: Participants in the Long-term Allopurinol Safety Study Evaluating Outcomes in Gout Patients (LASSO) (n = 299) were studied. In patients with evidence of adherence to allopurinol therapy (plasma oxypurinol >20 MUmol/l), good response was defined as serum urate <6 mg/dl on allopurinol ?300 mg/day and poor response as serum urate ? 6 mg/dl despite allopurinol >300 mg/day. Association of rs2231142 and rs10011796 with poor response was tested in logistic regression models that included age, sex, BMI, ethnicity and estimated glomerular filtration rate. Results from the LASSO study and a subset of participants in the Genetics of Gout in Aotearoa New Zealand study (n = 296, including 264 from a previously published report) were combined by meta-analysis. Results: There was evidence for association of rs2231142 with allopurinol response [odds ratio (OR) = 2.35, P = 7.3 * 10-4] but not for rs10011796 (OR = 1.21, P = 0.33) in the LASSO cohort using an adjusted logistic regression model. Meta-analysis provided evidence of a significant association of rs2231142 with allopurinol response (OR = 2.43, P = 6.2 * 10-7), but not rs10011796 (OR = 1.06, P = 0.69). Conclusion: This study has confirmed the significant association of ABCG2 rs2231142 with poor response to allopurinol. PMID- 29342290 TI - Chronic kidney disease and stroke: more observations but no trials. PMID- 29342287 TI - To the Brain and Back: Migratory Paths of Dendritic Cells in Multiple Sclerosis. AB - Migration of dendritic cells (DC) to the central nervous system (CNS) is a critical event in the pathogenesis of multiple sclerosis (MS). While up until now, research has mainly focused on the transmigration of DC through the blood brain barrier, experimental evidence points out that also the choroid plexus and meningeal vessels represent important gateways to the CNS, especially in early disease stages. On the other hand, DC can exit the CNS to maintain immunological tolerance to patterns expressed in the CNS, a process that is perturbed in MS. Targeting trafficking of immune cells, including DC, to the CNS has demonstrated to be a successful strategy to treat MS. However, this approach is known to compromise protective immune surveillance of the brain. Unravelling the migratory paths of regulatory and pathogenic DC within the CNS may ultimately lead to the design of new therapeutic strategies able to selectively interfere with the recruitment of pathogenic DC to the CNS, while leaving host protective mechanisms intact. PMID- 29342289 TI - Recent advances in kidney transplantation: a viewpoint from the Descartes advisory board. AB - Transplantation medicine is a rapidly evolving field. Keeping afloat of the published literature to offer the best clinical care to our patients is a daunting task. As part of its educational mission, the Descartes advisory board identified seven topics in kidney transplantation where there has been substantial progresses over the last years: kidney allocation within Eurotransplant; kidney exchange strategies; kidney machine perfusion strategies; the changing landscape of anti-human leukocyte antigen (HLA) antibodies; the new immunosuppressive drugs in the pipeline; strategies for immunosuppression minimization; and the continuous enigma of focal segmental glomerular sclerosis recurrence after transplantation. Here, we have summarized the main knowledge and the main challenges of these seven topics with the aim to provide transplant professionals at large with key bullet points to successfully understand these new concepts. PMID- 29342291 TI - PORTUGUESE STUDY OF MEAN GLANDULAR DOSE IN MAMMOGRAPHY AND COMPARISON WITH EUROPEAN REFERENCES. AB - To characterise the mean glandular dose (MGD) in a sample of healthcare providers for digital mammography in Portugal. To compare the achieved values with European references. The MGD was measured on a poly-methyl-methacrylate phantom (45 mm) for each system using dosimeters. In addition, MGD was estimated using exposure settings collected from mammography exams in clinical context. Data were collected from 25 computed-radiography systems (CR) and 13 integrated digital (DR). For both measurements (phantom and clinical exposures), the average MGD for CR was higher compared to the DR. For CR the mean MGD was 1.85 mGy (CC projection) and 2.10 mGy (MLO projection). For DR systems the corresponding values were 1.54 mGy (CC) and 1.68 mGy (MLO). The average MGD obtained using both methods and for both technologies is within the acceptable reference range proposed by European guidelines (<2.5 mGy). Dose Reference Levels implementation should be the next step to optimise mammography practice in Portugal. PMID- 29342292 TI - Clinical utility of the global anti-phospholipid syndrome score for risk stratification: a pooled analysis. AB - Objective: Recently, our group conceived a risk score for clinical manifestations of APS (the global APS score, or GAPSS) that takes into account the combination of independent cardiovascular risk factors and the aPL positivity profile. These include hyperlipidaemia, arterial hypertension, aCL, anti-beta2 glycoprotein-I, aPS-PT and the LA. A complementary version, the adjusted GAPSS (aGAPSS), which excludes aPS-PT, was also designed. The aim of our study was to systematically review the literature to assess the clinical utility of the GAPSS and aGAPSS for risk stratification of any APS clinical manifestation. Methods: We pooled data from available cohort studies, including a total of 10 studies, comprising 2273 patients, in which the GAPSS has been applied. A search strategy was developed a priori to identify an available cohort that reported findings which investigated the clinical utility of GAPSS or aGAPSS. Results: Seven studies used the GAPSS in their cohort, whereas three studies used the aGAPSS. In brief, we found a statistically significant difference in the cumulative GAPSS and aGAPSS between patients that experienced an arterial and/or venous thrombotic event [cumulative mean GAPSS (s.d.) 10.6 (4.74) and aGAPSS 7.6 (3.95)], patients without any thrombotic manifestation [cumulative GAPSS 7.01 (5.46) and aGAPSS 4.9 (4.33)] and patients with pregnancy morbidity [cumulative GAPSS 8.79 (2.59) and aGAPSS 6.7 (2.8)]. The highest levels of GAPSS were found in patients that experienced arterial thrombosis [mean GAPSS 12.2 (5.2)] and patients that experienced any recurrences of clinical manifestations of APS [mean GAPSS 13.7 (3.1)]. Conclusion: GAPSS may represent a useful tool to assess the thrombosis or pregnancy loss risk in aPL-positive patients, switching from the concept of aPL as a sole diagnostic antibody to aPL as risk factors for clinical events. PMID- 29342293 TI - Genetic Analyses in Small-for-Gestational-Age Newborns. AB - Context: Small for gestational age (SGA) can be the result of fetal growth restriction, which is associated with perinatal morbidity and mortality. Mechanisms that control prenatal growth are poorly understood. Objective: The aim of the current study was to gain more insight into prenatal growth failure and determine an effective diagnostic approach in SGA newborns. We hypothesized that one or more copy number variations (CNVs) and disturbed methylation and sequence variants may be present in genes associated with fetal growth. Design: A prospective cohort study of subjects with a low birth weight for gestational age. Setting: The study was conducted at an academic pediatric research institute. Patients: A total of 21 SGA newborns with a mean birth weight below the first centile and a control cohort of 24 appropriate-for-gestational-age newborns were studied. Interventions: Array comparative genomic hybridization, genome-wide methylation studies, and exome sequencing were performed. Main Outcome Measures: The numbers of CNVs, methylation disturbances, and sequence variants. Results: The genetic analyses demonstrated three CNVs, one systematically disturbed methylation pattern, and one sequence variant explaining SGA. Additional methylation disturbances and sequence variants were present in 20 patients. In 19 patients, multiple abnormalities were found. Conclusion: Our results confirm the influence of a large number of mechanisms explaining dysregulation of fetal growth. We concluded that CNVs, methylation disturbances, and sequence variants all contribute to prenatal growth failure. These genetic workups can be an effective diagnostic approach in SGA newborns. PMID- 29342294 TI - Factors affecting public health nurses' satisfaction with the preparedness and response of disaster relief operations at nuclear emergencies. PMID- 29342295 TI - Empagliflozin Treatment Is Associated With Improved beta-Cell Function in Type 2 Diabetes Mellitus. AB - Objective: To examine whether lowering plasma glucose concentration with the sodium-glucose transporter-2 inhibitor empagliflozin improves beta-cell function in patients with type 2 diabetes mellitus (T2DM). Methods: Patients with T2DM (N = 15) received empagliflozin (25 mg/d) for 2 weeks. beta-Cell function was measured with a nine-step hyperglycemic clamp (each step, 40 mg/dL) before and at 48 hours and at 14 days after initiating empagliflozin. Results: Glucosuria was recorded on days 1 and 14 [mean +/- standard error of the mean (SEM), 101 +/- 10 g and 117 +/- 11 g, respectively] after initiating empagliflozin, as were reductions in fasting plasma glucose levels (25 +/- 6 mg/dL and 38 +/- 8 mg/dL, respectively; both P < 0.05). After initiating empagliflozin and during the stepped hyperglycemic clamp, the incremental area under the plasma C-peptide concentration curve increased by 48% +/- 12% at 48 hours and 61% +/- 10% at 14 days (both P < 0.01); glucose infusion rate increased by 15% on day 3 and 16% on day 14, compared with baseline (both P < 0.05); and beta-cell function, measured with the insulin secretion/insulin resistance index, increased by 73% +/- 21% at 48 hours and 112% +/- 20% at 14 days (both P < 0.01). beta-cell glucose sensitivity during the hyperglycemic clamp was enhanced by 42% at 14 hours and 54% at 14 days after initiating empagliflozin (both P < 0.01). Conclusion: Lowering the plasma glucose concentration with empagliflozin in patients with T2DM augmented beta-cell glucose sensitivity and improved beta-cell function. PMID- 29342297 TI - AN EXACT GOODNESS-OF-FIT TEST BASED ON THE OCCUPANCY PROBLEMS TO STUDY ZERO INFLATION AND ZERO-DEFLATION IN BIOLOGICAL DOSIMETRY DATA. AB - The goal in biological dosimetry is to estimate the dose of radiation that a suspected irradiated individual has received. For that, the analysis of aberrations (most commonly dicentric chromosome aberrations) in scored cells is performed and dose response calibration curves are built. In whole body irradiation (WBI) with X- and gamma-rays, the number of aberrations in samples is properly described by the Poisson distribution, although in partial body irradiation (PBI) the excess of zeros provided by the non-irradiated cells leads, for instance, to the Zero-Inflated Poisson distribution. Different methods are used to analyse the dosimetry data taking into account the distribution of the sample. In order to test the Poisson distribution against the Zero-Inflated Poisson distribution, several asymptotic and exact methods have been proposed which are focused on the dispersion of the data. In this work, we suggest an exact test for the Poisson distribution focused on the zero-inflation of the data developed by Rao and Chakravarti (Some small sample tests of significance for a Poisson distribution. Biometrics 1956; 12 : 264-82.), derived from the problems of occupancy. An approximation based on the standard Normal distribution is proposed in those cases where the computation of the exact test can be tedious. A Monte Carlo Simulation study was performed in order to estimate empirical confidence levels and powers of the exact test and other tests proposed in the literature. Different examples of applications based on in vitro data and also data recorded in several radiation accidents are presented and discussed. A Shiny application which computes the exact test and other interesting goodness-of-fit tests for the Poisson distribution is presented in order to provide them to all interested researchers. PMID- 29342298 TI - Periodontal Disease Assessed Using Clinical Dental Measurements and Cancer Risk in the ARIC Study. AB - Background: While evidence is increasingly consistent with a positive association between periodontitis and cancer risk, most studies have relied on self-reported periodontitis. In this study, we prospectively evaluated the association of periodontal disease severity with cancer risk in black and white older adults in a cohort study that included a dental examination. Methods: Included were 7466 participants in the Atherosclerosis Risk in Communities study cohort who at visit 4 (1996-1998) reported being edentulous or underwent the dental examination. Probing depth and gingival recession were measured at six sites on all teeth; these measurements were used to define periodontal disease severity. Incident cancers (n = 1648) and cancer deaths (n = 547) were ascertained during a median of 14.7 years of follow-up. All statistical tests were two-sided. Results: An increased risk of total cancer (hazard ratio [HR] = 1.24, 95% confidence interval [CI] = 1.07 to 1.44, Ptrend = .004) was observed for severe periodontitis (>30% of sites with attachment loss >3 mm) compared with no/mild periodontitis (<10% of sites with attachment loss >3 mm), adjusting for smoking and other factors. Strong associations were observed for lung cancer (HR = 2.33, 95% CI = 1.51 to 3.60, Ptrend < .001), and elevated risks were noted for colorectal cancer for severe periodontitis, which were significant among never smokers (HR = 2.12, 95% CI = 1.00 to 4.47). Associations were generally weaker, or not apparent among black participants, except for lung and colorectal cancers, where associations were similar by race. No associations were observed for breast, prostate, or hematopoietic and lymphatic cancer risk. Conclusions: This study provides additional evidence that cancer risk, especially for lung and colorectal cancer, is elevated in individuals with periodontitis. Additional research is needed to understand cancer site-specific and racial differences in findings. PMID- 29342299 TI - Benefit of left atrial appendage electrical isolation for persistent and long standing persistent atrial fibrillation: a systematic review and meta-analysis. AB - Aims: The long-term outcomes of left atrial appendage electrical isolation (LAAEI) in patients with non-paroxysmal atrial fibrillation (AF) have corroborated the significant role of the LAA in this arrhythmia. We sought to investigate the incremental benefit of LAAEI in patients undergoing catheter ablation for persistent AF or long-standing persistent AF (LSPAF). Methods and results: A systematic review of Medline, Cochrane, and Embase for all the clinical studies in which assessment LAAEI in non-paroxysmal AF patients was performed. The benefit of LAAEI in patients with AF was analysed from seven studies that enrolled a total of 930 patients [mean age 63 +/- 5 years; male: 69%]. All studies included patients with either persistent AF or LSPAF or the combination of them. The overall freedom from all-arrhythmia recurrence at 12 months of follow-up off antiarrhythmic medications in patients who underwent LAAEI was 75.5% vs. 43.9% in those in whom only standard ablation was performed [56% relative reduction and 31.6% absolute reduction; risk ratio (RR) 0.44, 95% confidence interval (95% CI) 0.31-0.64; P < 0.0001]. The rate of ischaemic stroke in the LAAEI group was 0.4% and in the control group 2.1% at 12 months follow-up (RR 0.40, 95% CI 0.12-1.30; P = 0.13). Acute complications rates were identical between groups [LAAEI 5.5%, control 5.5% (RR 0.99, 95% CI 0.46-2.16; P = 0.99)]. Conclusion: Left atrial appendage electrical isolation in addition to standard ablation appears to have a substantial incremental benefit to achieve freedom from ALL atrial arrhythmias in patients with persistent AF and LSPAF without increasing acute procedural complications and without raising the risk of ischaemic stroke. PMID- 29342301 TI - Subtyping Bladder Cancers: Biology vs Bioinformatics. PMID- 29342300 TI - Metastatic joint involvement or inflammatory arthritis? A conundrum with immune checkpoint inhibitor-related adverse events. PMID- 29342302 TI - Determination of the appropriate physical density of internal metallic ports in temporary tissue expanders for the treatment planning of post-mastectomy radiation therapy. AB - Some patients undergoing breast reconstruction require post-mastectomy radiation therapy, but the metallic ports used in temporary tissue expanders attenuate the X-rays. In this study, we evaluated by the film method, the attenuation of 4 MV and 6 MV X-rays after passing through a metallic port, with the aim of identifying a useful method for determining the appropriate density to use in the radiation treatment planning system (RTPS), taking into account the distance between the metallic port and the targets. Radiochromic film was used to measure depth doses after the X-rays passed through the metallic port. The physical density allotted to the metal port portion was varied on the RTPS within the range 1-16 g/cm3, and the physical density values were calculated that best reproduced the depth-dose distribution extrapolated from the film method. When the metallic port was orientated perpendicularly, the attenuation of the X-rays peaked at ~7% at both 4 MV and 6 MV. In the parallel orientation, the X-rays were attenuated by up to ~40% at 4 MV and by up to ~30% at 6 MV. We estimated the optimum physical density to be 9.8 g/cm3, which yielded the best fit with the actual measurements. We demonstrated the most likely range for the target depth from the CT images of actual patients and, within this range, we identified the optimum physical density at which the measured and calculated values were most consistent with each other. PMID- 29342303 TI - Biomarkers for Tobacco Exposures, Toxicology, Regulation, and Cessation. PMID- 29342304 TI - Introduction of standardised tobacco packaging during a 12-month transition period: Findings from small retailers in the United Kingdom. AB - Introduction: Factory-made cigarettes (FMC) and roll-your-own (RYO) tobacco have had to be produced in standardised packaging since 20th May 2016 in the United Kingdom, with a minimum pack size of 20 sticks for FMC and 30 grams for RYO. Manufacturers and retailers were given a 12-month transition period. Methods: An observational study was conducted using monthly Electronic Point of Sale data from 500 small retailers in England, Scotland, and Wales, between May 2016 and May 2017. The 20 top selling tobacco products (15 FMC, 5 RYO) were monitored to observe when standardised packs were first introduced, the proportion of retailers selling each fully branded and standardised product, and the average number of monitored fully branded and standardised products sold by each retailer. The number of unique tobacco-related product codes sold by each retailer was also recorded each month. Results: Eighteen of the fully branded products continued to be sold throughout the transition period and no standardised variants were sold in the first five months. It was not until month eleven that the average number of standardised products sold by retailers exceeded the fully branded products. The average number of unique tobacco-related product codes sold by each retailer decreased by a third over the transition period. Conclusions: Tobacco companies used the transition period to delay the removal of fully branded products and gradually introduce standardised variants. This staggered introduction may have mitigated some of the immediate intended effects of the legislation by desensitising consumers to new pack designs. Implications: Evaluation research from countries which have introduced standardised packaging for tobacco products is key to help inform future implementation. This is the first study to monitor the transition from fully branded to standardised products using real-time retail data. The findings demonstrate that tobacco companies delayed the introduction of standardised products and removal of fully branded packaging. Countries seeking to introduce standardised packaging should consider what length of transition is allowed, as the protracted 12 month period in the UK appeared longer than needed to transition stockholding and may have mitigated immediate intended effects by desensitising consumers to new pack designs. PMID- 29342305 TI - ANALYSIS OF ELECTRIC FIELD STRENGTH AND POWER AROUND SELECTED MOBILE BASE STATIONS. AB - The analysis of channel power and electric field strength at various locations from mobile base stations using power sensor, spectrum analyzer and log-periodic antenna revealed maximum potential exposure between the range of 61.1 and 254.7 m. Generally, the potential exposure values ranged from 0.0717 to 0.8950 mW m-2 with a maximum deviation of 22.22%. GSM900 was found to be more pronounced than GSM1800 and UMTS2100. Though the results complied with ICNIRP reference levels with a wide margin of 0.01%, it was higher than some previous work and South African mean value of 0.16 mW m-2, agreed with similar work elsewhere but lower than a global average value of 0.730 mW m-2. PMID- 29342306 TI - Prevalence and Factors Associated with Diarrhoea among Children between 6 and 59 Months of Age in Mwanza City Tanzania. AB - Background: Childhood diarrhoea is a global public health problem especially in unplanned settlements of low- and middle-income countries. Different studies have associated household settlement and childhood diarrhoea, but the prevalence and risk factors associated with childhood diarrhoea at the community level are not clearly known. Method: A community-based cross-sectional study was performed to determine the prevalence and risk factors associated with diarrhoea in among 480 children between 6 and 59 months of age in Mwanza city from June to August 2016. Risk factors associated with childhood diarrhoea in Mwanza city were determined using univariate, bivariate and multivariate analysis. Results: The study showed a prevalence of diarrhoea of 20.4% and an association between type of settlement and childhood diarrhoea (p < 0.001) in a chi-square analysis. During bivariate analysis, and logistic regression, after controlling for other factors, unplanned settlement was significantly associated with childhood diarrhoea (odds ratio=3.475, p < 0.001 and AOR=3.469, p < 0.001). Other factors associated with childhood diarrhoea were behaviour of mother washing hands before preparing food (AOR = 0, 193, p < 0.001), mother washing hands after changing child's napkins (AOR = 0.544, p < 0.036) and the behaviour of the child washing hands after toilet (AOR = 0.447, p < 0.006). Conclusion: Risk factors associated with childhood diarrhoea in Mwanza city are unplanned settlement and behaviour of mother and child washing hands during critical time; hence, continuous community health promotion insisting on washing hands with soap and water during critically time is the best method for fighting childhood diarrhoea in Mwanza city. PMID- 29342308 TI - Chronic kidney disease burden among African migrants in three European countries and in urban and rural Ghana: the RODAM cross-sectional study. AB - Background: Chronic kidney disease (CKD) is a major burden among sub-Saharan African (SSA) populations. However, differences in CKD prevalence between rural and urban settings in Africa, and upon migration to Europe are unknown. We therefore assessed the differences in CKD prevalence among homogenous SSA population (Ghanaians) residing in rural and urban Ghana and in three European cities, and whether conventional risk factors of CKD explained the observed differences. Furthermore, we assessed whether the prevalence of CKD varied among individuals with hypertension and diabetes compared with individuals without these conditions. Methods: For this analysis, data from Research on Obesity & Diabetes among African Migrants (RODAM), a multi-centre cross-sectional study, were used. The study included a random sample of 5607 adult Ghanaians living in Europe (1465 Amsterdam, 577 Berlin, 1041 London) and Ghana (1445 urban and 1079 rural) aged 25-70 years. CKD status was defined according to severity of kidney disease using the combination of glomerular filtration rate (G1-G5) and albuminuria (A1-A3) levels as defined by the 2012 Kidney Disease: Improving Global Outcomes severity classification. Comparisons among sites were made using logistic regression analysis. Results: CKD prevalence was lower in Ghanaians living in Europe (10.1%) compared with their compatriots living in Ghana (13.3%) even after adjustment for age, sex and conventional risk factors of CKD [adjusted odds ratio (OR) = 0.70, 95% confidence interval (CI) 0.56-0.88, P = 0.002]. CKD prevalence was markedly lower among Ghanaian migrants with hypertension (adjusted OR = 0.54, 0.44-0.76, P = 0.001) and diabetes (adjusted OR = 0.37, 0.22-0.62, P = 0.001) compared with non-migrant Ghanaians with hypertension and diabetes. No significant differences in CKD prevalence was observed among non-migrant Ghanaians and migrant Ghanaians with no hypertension and diabetes. Among Ghanaian residents in Europe, the odds of CKD were lower in Amsterdam than in Berlin, while among Ghanaian residents in Ghana, the odds of CKD were lower in rural Ghana (adjusted OR = 0.68, 95% CI 0.53-0.88, P = 0.004) than in urban Ghana, but these difference were explained by conventional risk factors. Conclusion: Our study shows important differences in CKD prevalence among Ghanaians living in Europe compared with those living in Ghana, independent of conventional risk factors, with marked differences among those with hypertension and diabetes. Further research is needed to identify factors that might explain the observed difference across sites to implement interventions to reduce the high burden of CKD, especially in rural and urban Ghana. PMID- 29342307 TI - Using Phylogenomic Data to Explore the Effects of Relaxed Clocks and Calibration Strategies on Divergence Time Estimation: Primates as a Test Case. AB - Primates have long been a test case for the development of phylogenetic methods for divergence time estimation. Despite a large number of studies, however, the timing of origination of crown Primates relative to the Cretaceous-Paleogene (K Pg) boundary and the timing of diversification of the main crown groups remain controversial. Here, we analysed a data set of 372 taxa (367 Primates and 5 outgroups, 3.4 million aligned base pairs) that includes nine primate genomes. We systematically explore the effect of different interpretations of fossil calibrations and molecular clock models on primate divergence time estimates. We find that even small differences in the construction of fossil calibrations can have a noticeable impact on estimated divergence times, especially for the oldest nodes in the tree. Notably, choice of molecular rate model (autocorrelated or independently distributed rates) has an especially strong effect on estimated times, with the independent rates model producing considerably more ancient age estimates for the deeper nodes in the phylogeny. We implement thermodynamic integration, combined with Gaussian quadrature, in the program MCMCTree, and use it to calculate Bayes factors for clock models. Bayesian model selection indicates that the autocorrelated rates model fits the primate data substantially better, and we conclude that time estimates under this model should be preferred. We show that for eight core nodes in the phylogeny, uncertainty in time estimates is close to the theoretical limit imposed by fossil uncertainties. Thus, these estimates are unlikely to be improved by collecting additional molecular sequence data. All analyses place the origin of Primates close to the K-Pg boundary, either in the Cretaceous or straddling the boundary into the Palaeogene. PMID- 29342310 TI - Temporal Trends of Sources of Cigarettes among U.S. High School Students: 2001 2015. AB - Introduction: Restricting the supply of cigarettes to youth plays an important role in reducing youth smoking. Methods: The study included data from 8 years of the national Youth Risk Behavior Survey (YRBS) from 2001 to 2015 with 99,572 high school students less than 18 years old. Data were weighted to provide national estimates of the temporal trends of cigarette sources. Each cigarette source was analyzed by a separate multivariable logistic regression model and the linear trend odds ratio (aOR) was adjusted by age, sex, race/ethnicity, and smoking frequency. Results: The current smoking prevalence among U.S. high school students less than 18 years of age declined from 26.9% in 2001 to 9.9% in 2015. Among current smokers, we found an overall downward trend of buying cigarettes in a store (aOR=0.98, CI [0.96 - 1.00]) and an overall upward trend of getting them "some other way" (aOR=1.03, CI [1.01 - 1.05]). The prevalence of purchasing cigarettes in a store significantly declined among smokers aged 16-17, male smokers, white smokers, and daily smokers, but not among other categories. The prevalence of getting cigarettes "some other way" significantly increased across all groups except Hispanic smokers and medium-level or daily smokers. Conclusions: The proportion of high school students reporting that they bought cigarettes from a store has been declining over the years, while the proportion of high schoolers reporting that they got cigarettes "some other way" has been increasing. The temporal trends also varied by age, sex, race/ethnicity, and smoking frequency. Implications: Patterns of high school student access to cigarettes have changed from 2001 to 2015, with access from "some other way" becoming more prevalent. The differences in cigarette acquisition by age, sex, race/ethnicity, and smoking frequency highlight the importance of implementing tailored policies and interventions to reduce youth access to cigarettes and prevent youth from smoking. Clinical Trial Registration: This is not a clinical trial. PMID- 29342309 TI - Prognostic Power of a Tumor Differentiation Gene Signature for Bladder Urothelial Carcinomas. AB - Background: Muscle-invasive bladder cancers (MIBCs) cause approximately 150 000 deaths per year worldwide. Survival for MIBC patients is heterogeneous, with no clinically validated molecular markers that predict clinical outcome. Non-MIBCs (NMIBCs) generally have favorable outcome; however, a portion progress to MIBC. Hence, development of a prognostic tool that can guide decision-making is crucial for improving clinical management of bladder urothelial carcinomas. Methods: Tumor grade is defined by pathologic evaluation of tumor cell differentiation, and it often associates with clinical outcome. The current study extrapolates this conventional wisdom and combines it with molecular profiling. We developed an 18-gene signature that molecularly defines urothelial cellular differentiation, thus classifying MIBCs and NMIBCs into two subgroups: basal and differentiated. We evaluated the prognostic capability of this "tumor differentiation signature" and three other existing gene signatures including the The Cancer Genome Atlas (TCGA; 2707 genes), MD Anderson Cancer Center (MDA; 2252 genes/2697 probes), and University of North Carolina at Chapel Hill (UNC; 47 genes) using five gene expression data sets derived from MIBC and NMIBC patients. All statistical tests were two-sided. Results: The tumor differentiation signature demonstrated consistency and statistical robustness toward stratifying MIBC patients into different overall survival outcomes (TCGA cohort 1, P = .03; MDA discovery, P = .009; MDA validation, P = .01), while the other signatures were not as consistent. In addition, we analyzed the progression (Ta/T1 progressing to >=T2) probability of NMIBCs. NMIBC patients with a basal tumor differentiation signature associated with worse progression outcome (P = .008). Gene functional term enrichment and gene set enrichment analyses revealed that genes involved in the biologic process of immune response and inflammatory response are among the most elevated within basal bladder cancers, implicating them as candidates for immune checkpoint therapies. Conclusions: These results provide definitive evidence that a biology-prioritizing clustering methodology generates meaningful insights into patient stratification and reveals targetable molecular pathways to impact future therapeutic approach. PMID- 29342311 TI - Nonmotor manifestations in ALS patients with tracheostomy and invasive ventilation. PMID- 29342312 TI - Maladaptive repetitive thought as a transdiagnostic phenomenon and treatment target: An integrative review. AB - OBJECTIVE: Maladaptive repetitive thought (RT), the frequent and repetitive revisiting of thoughts or internal experiences, is associated with a range of psychopathological processes and disorders. We present a synthesis of prior research on maladaptive RT and develop a framework for elucidating and distinguishing between five forms of maladaptive RT. METHOD: In addition to the previously studied maladaptive RT (worry, rumination, and obsession), this framework is used to identify two additional forms of maladaptive RT (yearning and interoceptive RT). We then present a review of extant psychotherapy intervention research targeting maladaptive RT, focusing both on specific empirically based treatment strategies, and also constructs within treatments that impact maladaptive RT. CONCLUSION: The paper concludes with recommendations for future basic and intervention research on maladaptive RT and related psychopathologies. PMID- 29342313 TI - Collagen XII myopathy with rectus femoris atrophy and collagen XII retention in fibroblasts. AB - INTRODUCTION: Mutation in the collagen XII gene (COL12A1) was recently reported to induce Bethlem myopathy. We describe a family affected by collagen XII-related myopathy in 3 generations. METHODS: Systematic interview, clinical examination, skin biopsies, and MRI of muscle were used. RESULTS: The phenotype was characterized by neonatal hypotonia, contractures, and delayed motor development followed by resolution of contractures and a motor performance limited by reduced endurance. DNA analyses revealed a novel donor splice-site mutation in COL12A1 (c.8100 + 2T>C), which segregated with clinical affection and abnormal collagen XII retention in fibroblasts. MRI disclosed a selective wasting of the rectus femoris muscle. DISCUSSION: COL12A1 mutations should be considered in patients with a mild Bethlem phenotype who present with selective wasting of the rectus femoris, absence of the outside-in phenomenon on MRI, and abnormal collagen XII retention in fibroblasts. Muscle Nerve 57: 1026-1030, 2018. PMID- 29342314 TI - Fatigue is a relevant outcome in patients with myasthenia gravis. AB - INTRODUCTION: Patients with myasthenia gravis often experience fatigue, but its effect on quality of life (QoL) is underestimated, and fatigue is rarely measured in clinical trials. METHODS: Two hundred fifty-seven myasthenic patients completed the Neuro-QoL-Fatigue and measures of disease severity and QoL. We studied the relationship between fatigue and clinical and demographic variables. Finally, we studied the responsiveness of the Neuro-QoL-Fatigue in 95 patients receiving treatments for myasthenia and estimated the minimal important difference (MID). RESULTS: Fatigue correlated with greater disease severity (r = 0.52-0.69, P < 0.0001) and worse QoL (r = 0.65-0.75, P < 0.0001). Patients in remission, with minimal manifestations, and pure ocular symptoms reported minimal fatigue. Regression modeling showed that, in addition to its relationship with disease severity, fatigue was worse in females, patients with generalized disease, and those with anxiety/depression. Fatigue improved after immunomodulation (P < 0.0001), and the MID was 5.3 points. DISCUSSION: Fatigue in myasthenia correlates with disease severity, affects QoL, and can improve after treatment. Muscle Nerve 58: 197-203, 2018. PMID- 29342315 TI - Oxidation of Methylalumoxane Oligomers. AB - The anions formed from methylalumoxane (MAO) and suitable donors (e.g. octamethyltrisiloxane) are amenable to mass spectrometric (MS) analysis. Their composition as deduced from this data allows direct insight into the chemical transformations of their neutral precursors. One such process is oxidation, which is well-known to be facile for MAO without any clear idea of what actually occurs at a molecular level. Addition of O2 to MAO results in immediate gelation, but MS analysis reveals no corresponding change to the composition of the principal oligomeric anions. A slow (hours) reaction does occur that involves net incorporation of Me2 AlOMe into the oligomeric anions, and the identities of the OMe-containing anions were confirmed by 1 H NMR spectroscopy, MS/MS analysis, and addition of an authentic sample of Me2 AlOMe to MAO. The result tallies with the fact that addition of O2 to MAO produces Me2 AlOMe from free Me3 Al which eventually leads to formation of oxidized MAO oligomers and changes in ion abundance. Aging of the oxygenated MAO results in further growth of the oligomers similar to that of the non-oxidized species. Mass spectrometric analysis therefore reveals useful insights into the environmental history of a given MAO batch. PMID- 29342316 TI - Solvent-Free Enzyme Activity: Quick, High-Yielding Mechanoenzymatic Hydrolysis of Cellulose into Glucose. AB - Mechanochemistry enables enzymatic cleavage of cellulose into glucose without bulk solvents, acids, other aggressive reagents, or substrate pre-treatment. This clean mechanoenzymatic process (coined RAging) is also directly applicable to biomass, avoids many limitations associated with the use of cellulases, and produces glucose concentrations greater than three times that obtained by conventional methods. PMID- 29342317 TI - Osteoblast-like MC3T3-E1 Cells Prefer Glycolysis for ATP Production but Adipocyte like 3T3-L1 Cells Prefer Oxidative Phosphorylation. AB - Mesenchymal stromal cells (MSCs) are early progenitors that can differentiate into osteoblasts, chondrocytes, and adipocytes. We hypothesized that osteoblasts and adipocytes utilize distinct bioenergetic pathways during MSC differentiation. To test this hypothesis, we compared the bioenergetic profiles of preosteoblast MC3T3-E1 cells and calvarial osteoblasts with preadipocyte 3T3L1 cells, before and after differentiation. Differentiated MC3T3-E1 osteoblasts met adenosine triphosphate (ATP) demand mainly by glycolysis with minimal reserve glycolytic capacity, whereas nondifferentiated cells generated ATP through oxidative phosphorylation. A marked Crabtree effect (acute suppression of respiration by addition of glucose, observed in both MC3T3-E1 and calvarial osteoblasts) and smaller mitochondrial membrane potential in the differentiated osteoblasts, particularly those incubated at high glucose concentrations, indicated a suppression of oxidative phosphorylation compared with nondifferentiated osteoblasts. In contrast, both nondifferentiated and differentiated 3T3-L1 adipocytes met ATP demand primarily by oxidative phosphorylation despite a large unused reserve glycolytic capacity. In sum, we show that nondifferentiated precursor cells prefer to use oxidative phosphorylation to generate ATP; when they differentiate to osteoblasts, they gain a strong preference for glycolytic ATP generation, but when they differentiate to adipocytes, they retain the strong preference for oxidative phosphorylation. Unique metabolic programming in mesenchymal progenitor cells may influence cell fate and ultimately determine the degree of bone formation and/or the development of marrow adiposity. (c) 2018 American Society for Bone and Mineral Research. PMID- 29342318 TI - Optical Structural Analysis of Individual alpha-Synuclein Oligomers. AB - Small aggregates of misfolded proteins play a key role in neurodegenerative disorders. Such species have proved difficult to study due to the lack of suitable methods capable of resolving these heterogeneous aggregates, which are smaller than the optical diffraction limit. We demonstrate here an all-optical fluorescence microscopy method to characterise the structure of individual protein aggregates based on the fluorescence anisotropy of dyes such as thioflavin-T, and show that this technology is capable of studying oligomers in human biofluids such as cerebrospinal fluid. We first investigated in vitro the structural changes in individual oligomers formed during the aggregation of recombinant alpha-synuclein. By studying the diffraction-limited aggregates we directly evaluated their structural conversion and correlated this with the potential of aggregates to disrupt lipid bilayers. We finally characterised the structural features of aggregates present in cerebrospinal fluid of Parkinson's disease patients and age-matched healthy controls. PMID- 29342319 TI - Validation of The Individualized Neuromuscular Quality of Life in Japanese patients with myotonic dystrophy. AB - INTRODUCTION: The Individualized Neuromuscular Quality of Life (INQoL) is used to measure the quality of life (QoL) of patients with neuromuscular disease. We conducted this study to translate and validate the Japanese version of the INQoL in patients with myotonic dystrophy. METHODS: Forward and backward translation, patient testing, and psychometric validation were performed. We used the 36-Item Short Form Health Survey (SF-36) and the modified Rankin scale for concurrent validation. RESULTS: The Japanese INQoL was administered to 90 adult patients. The coefficients for internal consistency and test-retest reliability were adequately high in most domains (Cronbach alpha 0.88-0.96 and intraclass coefficient 0.64-0.99). INQoL domains were moderately to strongly associated with relevant SF-36 subscales (Spearman's rho -0.23 to -0.74). Symptom severity, disease duration, employment status, and use of a ventilator influenced overall QoL. DISCUSSION: The INQoL is a reliable and validated measure of QoL for Japanese patients with myotonic dystrophy. Muscle Nerve, 2018. PMID- 29342320 TI - Association of Pre-ESRD Serum Calcium With Post-ESRD Mortality Among Incident ESRD Patients: A Cohort Study. AB - Albumin-corrected serum calcium (cSCa) decline at late stages of chronic kidney disease and rise after dialysis initiation. Although hypercalcemia is associated with higher mortality in end-stage renal disease (ESRD), there are scarce data on the impact of pre-ESRD cSCa on post-ESRD mortality. Therefore, we used a large national cohort of 21,826 US veterans who transitioned to dialysis in all US Department of Veterans Affairs health care facilities over 2009 to 2014 to examine the associations with all-cause and cause-specific post-ESRD mortality of (1) cSCa concentrations averaged over the last 6 months and (2) its rate of decline during the last 12 months before dialysis initiation. Mean concentrations and median rate of decline of cSCa were 9.3 +/- 0.7 mg/dL and -0.15 (interquartile range -0.39 to 0.07) mg/dL/year, respectively. A total of 9596 patients died during the follow-up period (mean 1.9 years; total 41,541 patient years) with an incidence rate of 23.1 per 100 patient-years. There was an independent linear association between higher cSCa with higher mortality (ptrend < 0.001). The mortality risk associated with cSCa >=9.0 mg/dL was attenuated among active vitamin D users (pinteraction < 0.001). Patients with faster decline in cSCa showed lower mortality irrespective of baseline cSCa concentrations. These cSCa-mortality associations were stronger for noncardiovascular versus cardiovascular death. In conclusion, lower pre-ESRD cSCa and faster decline in cSCa were consistently and linearly associated with better post-ESRD survival among US veterans, especially for noncardiovascular death. Further studies are needed to determine if correcting hypocalcemia is beneficial or harmful and which intervention is preferred when indicated among patients transitioning to ESRD. (c) 2018 American Society for Bone and Mineral Research. PMID- 29342322 TI - An Ethenoadenine FAD Analog Accelerates UV Dimer Repair by DNA Photolyase. PMID- 29342323 TI - Editorial (2018, Issue 1). PMID- 29342321 TI - Contributions of Material Properties and Structure to Increased Bone Fragility for a Given Bone Mass in the UCD-T2DM Rat Model of Type 2 Diabetes. AB - Adults with type 2 diabetes (T2D) have a higher fracture risk for a given bone quantity, but the mechanisms remain unclear. Using a rat model of polygenic obese T2D, we demonstrate that diabetes significantly reduces whole-bone strength for a given bone mass (MUCT-derived BMC), and we quantify the roles of T2D-induced deficits in material properties versus bone structure; ie, geometry and microarchitecture. Lumbar vertebrae and ulnae were harvested from 6-month-old lean Sprague-Dawley rats, obese Sprague-Dawley rats, and diabetic obese UCD-T2DM rats (diabetic for 69 +/- 7 days; blood glucose >200 mg/dL). Both obese rats and those with diabetes had reduced whole-bone strength for a given BMC. In obese rats, this was attributable to structural deficits, whereas in UCD-T2DM rats, this was attributable to structural deficits and to deficits in tissue material properties. For the vertebra, deficits in bone structure included thinner and more rod-like trabeculae; for the ulnae, these deficits included inefficient distribution of bone mass to resist bending. Deficits in ulnar material properties in UCD-T2DM rats were associated with increased non-enzymatic crosslinking and impaired collagen fibril deformation. Specifically, small-angle X-ray scattering revealed that diabetes reduced collagen fibril ultimate strain by 40%, and those changes coincided with significant reductions in the elastic, yield, and ultimate tensile properties of the bone tissue. Importantly, the biomechanical effects of these material property deficits were substantial. Prescribing diabetes-specific tissue yield strains in high-resolution finite element models reduced whole-bone strength by a similar amount (and in some cases a 3.4-fold greater amount) as the structural deficits. These findings provide insight into factors that increase bone fragility for a given bone mass in T2D; not only does diabetes associate with less biomechanically efficient bone structure, but diabetes also reduces tissue ductility by limiting collagen fibril deformation, and in doing so, reduces the maximum load capacity of the bone. (c) 2018 American Society for Bone and Mineral Research. PMID- 29342324 TI - Different Atomic Terminations Affect the Photocatalytic Nitrogen Fixation of Bismuth Oxybromide: A First Principles Study. AB - We have systematically investigated the electronic structures and activation capacities of BiOBr {001} facets with different atomic terminations by means of DFT methods. Our calculations reveal that oxygen vacancies (OVs) give a significant boost in band edges of the O-terminated BiOBr {001} facets, and excess electrons induced by OVs could exceed the reduction potentials of high energy N2 intermediates. Interestingly, the Bi-terminated BiOBr {001} facets may be good candidates for photocatalytic nitrogen fixation due to the stronger activation ability of N2 molecules comparing with O-terminated BiOBr {001} facets with OVs. Moreover, the Bi-terminated BiOBr {001} facets may tend to yield NH3 instead of N2 H4 . PMID- 29342325 TI - Neuromuscular complications of immune checkpoint inhibitor therapy. AB - Immune checkpoint inhibitor (ICPI) therapy unleashes the body's natural immune system to fight cancer. ICPIs improve overall cancer survival, however, the unbridling of the immune system may induce a variety of immune-related adverse events. Neuromuscular immune complications are rare but they can be severe. Myasthenia gravis and inflammatory neuropathy are the most common neuromuscular adverse events but a variety of others including inflammatory myopathy are reported. The pathophysiologic mechanism of these autoimmune disorders may differ from that of non-ICPI-related immune diseases. Accordingly, while the optimal treatment for ICPI-related neuromuscular disorders generally follows a traditional paradigm, there are important novel considerations in selecting appropriate immunosuppressive therapy. This review presents 2 new cases, a summary of neuromuscular ICPI complications, and an approach to the diagnosis and treatment of these disorders. Muscle Nerve, 2018. PMID- 29342326 TI - Mixed Fluorotryptophan Substitutions at the Same Residue Expand the Versatility of 19 F Protein NMR Spectroscopy. AB - The strategy of applying fluorine NMR to characterize ligand binding to a membrane protein prepared with mixtures of tryptophans substituted with F at different positions on the indole ring was tested. The 19 F NMR behavior of 4-, 5 , 6-, and 7-fluorotryptophan were directly compared as a function of both micellar environment and fragment size for two overlapping apelin receptor (AR/APJ) segments; one with a single transmembrane (TM) helix and two tryptophan residues, the other with three TM helices and two additional tryptophan residues. Chemical shifts, peak patterns, and nuclear spin relaxation rates were observed to vary as a function of micellar conditions and F substitution position in the indole ring, with the exposure of a given residue to micelle or solvent being the primary differentiating factor. Titration of the 3-TM AR segment biosynthetically prepared as a mixture of 5- and 7-fluorotryptophan-containing isoforms by two distinct peptide ligands (apelin-36 and apela-32) demonstrated site-specific 19 F peak intensity changes for one ligand but not the other. In contrast, both ligands perturbed 1 H-15 N HSQC peak patterns to a similar degree. Characterization of multiple fluorotryptophan types for a given set of tryptophan residues, thus, significantly augments the potential to apply 19 F NMR to track otherwise obscure modulation of protein conformation and dynamics without an explicit requirement for mutagenesis or chemical modification. PMID- 29342328 TI - Automated measurement of left ventricular ejection fraction and volume using the Philips EPIQ system: Methodological issues on validity and reproducibility. PMID- 29342329 TI - When the gold standard is not always golden: The value of invasive hemodynamic assessment to overcome the pitfalls of echocardiography in challenging cases of mitral stenosis. AB - Mitral stenosis is a uncommon valvular lesion in the developed countries. Noninvasive evaluation is the first-line modality for assessment of mitral stenosis, however the noninvasive methods may have limitations in certain cases. Invasive hemodynamics can be used as adjunct tool for assessment of mitral stenosis in such difficult cases. Mitral valve using three-dimensional planimetry is a promising technique for assessment of mitral stenosis. PMID- 29342330 TI - Corrigendum. PMID- 29342332 TI - ? PMID- 29342331 TI - Reproducibility of automated measurement of left ventricular volumes and ejection fraction using the Philips EPIQ system. PMID- 29342334 TI - ? PMID- 29342333 TI - ? PMID- 29342335 TI - ? PMID- 29342336 TI - ? PMID- 29342337 TI - ? PMID- 29342339 TI - ? PMID- 29342338 TI - ? PMID- 29342340 TI - ? PMID- 29342341 TI - Aptamer-Directed Specific Drug Delivery and Magnetic Resonance Imaging of Renal Carcinoma Cells In Vitro and In Vivo. AB - Magnetic resonance imaging (MRI) with high spatial resolution has been widely used in clinics as a noninvasive diagnostic technology, and MRI diagnosis-based theranostic nanomaterials have attracted increasing attention. Herein, we report on the fabrication of a GO/BSA-Gd2O3/AS1411-DOX theranostic nanocomplex with BSA Gd2O3 nanoparticles for use as an MRI contrast agent (CA), with graphene oxide (GO) nanoplates as the CA and drug nanocarrier, as well as an aptamer, AS1411, as the targeting molecule. The proposed theranostic nanocomplex not only provided stronger MR contrast enhancement but also inhibited the growth of 786-0 human renal carcinoma cells with the help of the AS1411 aptamer, while sparing the normal cells from harm, thus demonstrating their specific drug delivery capability. Additionally, 786-0 cells could be specifically recognized using the GO/BSA-Gd2O3/AS1411-DOX theranostic nanocomplex with MRI both in vitro and in vivo. Notably, most of the nanocomplex that was injected into the tail vein was excreted by the kidneys and bladder, while MRI signals from the nanocomplexes that accumulated specifically in the tumor region could remain as long as 24 hours, which is beneficial for future clinical diagnosis and therapy. PMID- 29342343 TI - Redox Sensitive Shell and Core Crosslinked Hyaluronic Acid Nanocarriers for Tumor Targeted Drug Delivery. AB - The purpose of the present study was to develop a robust and redox-sensitive nanocarrier based on amphiphilic hyaluronic acid nanoparticles, in which the hydrophobic core was crosslinked by photo-crosslinking and the hyaluronic acid shell was crosslinked via a bioreducible disulfide linkage. Dynamic light scattering showed that the shell and core crosslinked nanocarriers were obviously more stable than core crosslinked or non-crosslinked nanoparticles. Moreover, the particle size changed as the glutathione concentration was altered, exhibiting obvious redox sensitivity. Transmission electron microscopy showed that the nanoparticle structure was denser after crosslinking. Additionally, methotrexate was effectively encapsulated into nanoparticles with high drug-loading efficiency. In vitro methotrexate release assays showed that the methotrexate loaded bioreducible hyaluronic acid nanoparticles greatly suppressed drug release in phosphate-buffered saline (pH 7.4) without or with 20 MUM glutathione. In contrast, in phosphate-buffered saline (pH 7.4) with higher glutathione concentrations (2, 5, or 10 mM), methotrexate was released more rapidly and completely from the nanocarriers in 24 h. Furthermore, methotrexate was released completely and rapidly from the nanoparticles under simulated tumor cell conditions (pH 5.0 with 10 mM glutathione), suggesting potential applications in tumor-specific drug release. In vitro anticancer activity tests showed that the inhibition rate of methotrexate-loaded nanoparticles in HeLa cells reached 94%. However, excess hyaluronic acid decreased cell toxicity. Cellular uptake studies suggested that the prepared nanoparticles were probably internalized into the cancer cells via receptor-mediated endocytosis. Overall, our data demonstrated that the bio-reducible shell and core crosslinked nanoparticles could be used as a potential carrier for cancer therapy. PMID- 29342342 TI - Tranexamic Acid-Encapsulating Thermosensitive Liposomes for Site-Specific Pharmaco-Laser Therapy of Port Wine Stains. AB - Site-specific pharmaco-laser therapy (SSPLT) is a developmental stage treatment modality designed to non-invasively remove superficial vascular pathologies such as port wine stains (PWS) by combining conventional laser therapy with the prior administration of a prothrombotic and/or antifibrinolytic pharmaceutical containing drug delivery system. For the antifibrinolytic SSPLT component, six different PEGylated thermosensitive liposomal formulations encapsulating tranexamic acid (TA), a potent antifibrinolytic lysine analogue, were characterized for drug:lipid ratio, encapsulation efficiency, size, endovesicular TA concentration (C TA), phase transition temperature (T m), and assayed for heat induced TA release. Assays were developed for the quantification of liposomal TA and heat-induced TA release from two candidate formulations. The outcome parameters were then combined with a 3D histological reconstruction of a port wine stain biopsy to extrapolate in vivo posologies for SSPLT. The prime formulation, DPPC:DSPE-PEG2000 (96:4 molar ratio), had a drug:lipid molar ratio of 0.82, an encapsulation efficiency of 1.29%, a diameter of 155 nm, and a C TA of 214 mM. The peak TA release from this formulation (T m = 42.3 degrees C) comprised 96% within 2.5 min, whereas this was 94% in 2 min for DPPC:MPPC:DSPE PEG2000 (86:10:4) liposomes (T m = 41.5 degrees C). Computational analysis revealed that < 400 DPPC:DSPE-PEG2000 (96:4 molar ratio) liposomes are needed to treat a PWS of 40 cm2, compared to a three-fold greater quantity of DPPC:MPPC:DSPE-PEG2000 (86:10:4) liposomes, indicating that, in light of the assayed parameters and endovascular laser-tissue interactions, the former formulation is most suitable for antifibrinolytic SSPLT. This was further confirmed with experiments involving ex vivo and in vivo liposome-platelet and liposome-red blood cell association as well as uptake and toxicity assays with cultured endothelial cells (HUVECs), macrophages (RAW 264.7), and hepatocytes (HepG2). PMID- 29342344 TI - A Nanoparticle Carrier for Co-Delivery of Gemcitabine and Small Interfering RNA in Pancreatic Cancer Therapy. AB - BACKGROUND: The concept of precision medicine to treat cancer shows promise and a co-delivery carrier for chemotherapy drugs and target genes is the key tool for both basic research and clinical application. To address this, we developed a cancer-targeting nanoparticle vector to transfer gemcitabine (Gem) and small interfering RNA (siRNA) to pancreatic cancer. METHODS: Iron oxide nanoparticles (IONPs) resonant at 15 nm were conjugated with the single chain variable fragment (scFv) against CD44v6 (scFvCD44v6), which has proven pancreatic cancer-targeting specificity as reported in our previous study. Gem was then linked through a lysosomally cleavable tetrapeptide linker, resulting in a scFv-targeted nanoparticle construct, which was subsequently conjugated to siRNA targeting the Bmi-1 oncogene (siBmi-1) to obtain the multifunctional nanoparticle scFv-Gem siBmi-1-NPs. A series of biological experiments were performed to test its biophysical characterization, gene silencing efficacy and anti-tumor effect in vitro and in vivo. RESULTS: The multifunctional nanoparticle not only possesses an ultra-small size of approximately 80 nm, excellent biocompatibility and biodegradability, but also exerts a synergistic anti-tumor effect both in vitro and in vivo, such as inhibition of tumor cell growth, invasion and migration, reduction of cell cycle progression and promotion of tumor apoptosis. Furthermore, this nanoparticle can efficiently target pancreatic cancer in vivo, resulting in the enhanced bioavailability and efficacy of Gem. CONCLUSION: scFv Gem-siBmi-1-NPs provide an effective and targeted co-delivery of Gem and siBmi-1 to pancreatic cancer, and exert an efficient and corporate anti-tumor therapeutic effect. This prospective vector shows promise for precise treatment of pancreatic cancer. PMID- 29342345 TI - Comprehensive Analysis of Secreted Protein, Acidic and Rich in Cysteine in Prostate Carcinogenesis: Development of a 3D Nanostructured Bone-Like Model. AB - Most aggressive prostate cancer (PCa) types tend to metastasize frequently to bone and SPARC, a matricellular protein, might participate in such biological processes. The objective of this study was to evaluate the effect of SPARC in prostate carcinogenesis and bone metastization. This was explored assessing the morphology, metabolic activity and SPARC expression of different PCa cell lines resembling different stages of carcinogenesis, using a 3D bone-biomimetic model (collagen nanofibers/nanohydroxyapatite) grafted with SPARC. Our findings highlight distinct cellular behavior depending on cell type and presence of exogenous SPARC. In fact, SPARC addition contributed to the survival and significant growth of a non-bone metastatic PCa cell line (LNCaP) on bone-like biomaterial. Moreover, SPARC expression levels were evaluated in a series of prostatic tissues, comparing normal prostate, pre-neoplastic prostate intraepithelial neoplasias and overtly malignant tumors, and also metastasis to its correspondent primary prostate tumors, ascertaining potential association between SPARC and clinicopathological data. Remarkably, SPARC was overexpressed in patients with higher Gleason Score, indicating tumors with poor prognosis, as well as in metastasis, particularly from bone sites, compared with their respective primary tumors. The results suggest a potential role of SPARC as a clinical target on PCa, due to its association with bone metastization. PMID- 29342346 TI - Ratiometric Reactive Oxygen Species Nanoprobe for Noninvasive In Vivo Imaging of Subcutaneous Inflammation/Infection. AB - Release of reactive oxygen species (ROS) accompanied with acute inflammation and infection often results in cell death and tissue injury. Several ROS-reactive bioluminescent probes have been investigated in recent years to detect ROS activity in vivo. Unfortunately, these probes cannot be used to quantify the degree of ROS activity and inflammatory responses due to the fact that the extent of the bioluminescent signals is also probe-concentration dependent. To address this challenge, we fabricated a ratiometric ROS probe in which both ROS-sensitive chemiluminescent agents and ROS-insensitive fluorescent reference dye were conjugated to particle carriers. The bioluminescence/reference fluorescence intensity ratios was calculated to reflect the extent of localized ROS activities while circumventing the variations in bioluminescent intensities associated with the ROS probe concentrations. The physical and chemical properties of the ratiometric probes were characterized. Furthermore, we assessed the accuracy and reproducibility of the probe in detecting ROS in vitro. The ability of the ratiometric probes to detect ROS production in inflamed/infected tissues was also examined using animal models of inflammation and infection. The overall results imply that ratiometric ROS probes can rapidly and non-invasively detect and quantify the extent of inflammatory responses and bacterial infection on wounds in real time. PMID- 29342347 TI - A pH-Sensitive Nanosystem Based on Carboxymethyl Chitosan for Tumor-Targeted Delivery of Daunorubicin. AB - Nanoparticles, such as polymeric micelles, are currently regarded as effective drug delivery vehicles. In this study, a series of carboxymethyl chitosan/daunorubicin (CMCS/DNR) conjugates with macromolecular carriers of different molecular weights (MWs) were prepared and structurally characterized by Fourier transform infrared spectroscopy (FT-IR) and 1H-NMR spectroscopy. The results indicated that the MWs of the carriers greatly influenced the drug loading capacity. DNR was conjugated to the polymer via an acid-sensitive hydrazone linkage susceptible to hydrolysis at pH 5-6, thereby enabling intracellular DNR release. In aqueous media, the conjugates spontaneously formed nano-sized particles with core-shell structures (CMCS and DNR as the shell and core, respectively). Dynamic light scattering (DLS) and trans-mission electron microscopy (TEM) indicated that the prepared nanoparticles were spherical in shape with diameters of 100-200 nm and had a slight negative surface charge. In addition, in vitro drug release studies demonstrated that the micelles were highly sensitive to mild acidic conditions (pH 5.0) but remained reasonably stable at pH 6.5 and pH 7.4. Importantly, cell counting kit-8 (CCK-8) assays demonstrated that DNR-conjugated nanoparticles exerted a cytotoxic effect on HeLa cells, with the IC50 being approximately 2 times higher than that of free-DNR. Furthermore, confocal laser scanning microscopy (CLSM) revealed that the CMCS-hyd DNR nanosystem could efficiently deliver and release DNR in the nuclei of cancer cells. Taken together, the developed CMCS based pH-sensitive nanosystem may be a potential drug delivery vehicle for cancer therapy. PMID- 29342348 TI - Characterization of the Uptake Efficiency and Cytotoxicity of Tetrandrine-Loaded Poly(N-vinylpyrrolidone)-Block-Poly(epsilon-caprolactone) (PVP-b-PCL) Nanoparticles in the A549 Lung Adenocarcinoma Cell Line. AB - Tetrandrine (Tet) has been previously reported to induce apoptosis in several cancer cell lines. However, poor Tet solubility has limited its further application. The lipophilicity of Tet suggests that the development of Tet-loaded biodegradable polymeric micelle delivery systems may be possible. In our previous work, we demonstrated the superior antitumor efficiency of Tet-loaded mPEG-PCL nanoparticles (NPs) in colorectal cancer cell lines. In the present study, we report that a spherical core-shell Tet-loaded nanoparticle structure was prepared using a nanoprecipitation method by employing amphiphilic poly(N vinylpyrrolidone)-block-poly(epsilon-caprolactone) (PVP-b-PCL) copolymers as drug carriers. Tet was incorporated into the NPs with high encapsulation efficiency and released in a sustained release pattern. Moreover, coumarin-6 (hydrophobic fluorescence)-loaded Tet-NP uptake was shown to be mediated mainly by endocytosis from the NPs and was more efficient than that of rhodamine B (hydrophilic fluorescence)-loaded NP uptake, which was mainly dependent upon infiltration. The endocytic uptake process was blocked by NaN3, a mitochondrial inhibitor. In vitro studies using the A549 cell line demonstrated the superior cytotoxicity and apoptosis induction ability of Tet-NPs in dose- and time-dependent manners compared to free Tet. The data obtained from this study, therefore, not only confirm the potential use of Tet to treat lung cancer but also suggest an effective manner by which to improve the anticancer efficiency of Tet in nano drug delivery systems. PMID- 29342350 TI - Real-Time Monitoring of Chemical Changes in Three Kinds of Fermented Milk Products during Fermentation Using Quantitative Difference Nuclear Magnetic Resonance Spectroscopy. AB - Fermented milk products are rising in popularity throughout the world as a result of their health benefits, including improving digestion, normalizing the function of the immune system, and aiding in weight management. This study applies an in situ quantitative nuclear magnetic resonance method to monitor chemical changes in three kinds of fermented milk products, Bulgarian yogurt, Caspian Sea yogurt, and kefir, during fermentation. As a result, the concentration changes in nine organic compounds, alpha/beta-lactose, alpha/beta-galactose, lactic acid, citrate, ethanol, lecithin, and creatine, were monitored in real time. This revealed three distinct metabolic processes in the three fermented milk products. Moreover, pH changes were also determined by variations in the chemical shift of citric acid during the fermentation processes. These results can be applied to estimate microbial metabolism in various flora and help guide the fermentation and storage of various fermented milk products to improve their quality, which may directly influence human health. PMID- 29342349 TI - Membrane Allostery and Unique Hydrophobic Sites Promote Enzyme Substrate Specificity. AB - We demonstrate that lipidomics coupled with molecular dynamics reveal unique phospholipase A2 specificity toward membrane phospholipid substrates. We discovered unexpected headgroup and acyl-chain specificity for three major human phospholipases A2. The differences between each enzyme's specificity, coupled with molecular dynamics-based structural and binding studies, revealed unique binding sites and interfacial surface binding moieties for each enzyme that explain the observed specificity at a hitherto inaccessible structural level. Surprisingly, we discovered that a unique hydrophobic binding site for the cleaved fatty acid dominates each enzyme's specificity rather than its catalytic residues and polar headgroup binding site. Molecular dynamics simulations revealed the optimal phospholipid binding mode leading to a detailed understanding of the preference of cytosolic phospholipase A2 for cleavage of proinflammatory arachidonic acid, calcium-independent phospholipase A2, which is involved in membrane remodeling for cleavage of linoleic acid and for antibacterial secreted phospholipase A2 favoring linoleic acid, saturated fatty acids, and phosphatidylglycerol. PMID- 29342351 TI - Organic Mixed Valence Compounds Derived from Cyclic (Alkyl)(amino)carbenes. AB - Readily available room temperature stable organic mixed valence compounds are prepared by one-electron reduction of cyclic bis(iminium) salts [derived from cyclic (alkyl)(amino)carbenes] bridged by various spacers. These compounds show characteristic intervalence charge transfer (IV-CT) bands in the near-infrared (NIR). Cyclic voltammetry, EPR, IR, UV-vis, and X-ray studies, as well as DFT calculations, show that, depending on the nature of the spacer, these mixed valence compounds range from class III to class II. PMID- 29342353 TI - Synthesis and Computational Studies Demonstrate the Utility of an Intramolecular Styryl Diels-Alder Reaction and Di-t-butylhydroxytoluene Assisted [1,3]-Shift to Construct Anticancer dl-Deoxypodophyllotoxin. AB - Deoxypodophyllotoxin is a secondary metabolite lignan possessing potent anticancer activity with potential as a precursor for known anticancer drugs, but its use is limited by scarcity from natural sources. We here report the total synthesis of racemic deoxypodophyllotoxin in seven steps using an intramolecular styryl Diels-Alder reaction strategy uniquely suited to assemble the deoxypodophyllotoxin core. Density functional theory was used to analyze concerted, polar, and singlet-open-shell diradical reaction pathways, which identified a low-energy concerted [4 + 2] Diels-Alder pathway followed by a faster di-t-butylhydroxytoluene assisted [1,3]-formal hydrogen shift. PMID- 29342354 TI - A Highly Dynamic Loop of the Pseudomonas aeruginosa PA14 Type IV Pilin Is Essential for Pilus Assembly. AB - Type IVa pili (T4aP) are long, thin surface filaments involved in attachment, motility, biofilm formation, and DNA uptake. They are important virulence factors for many bacteria, including Pseudomonas aeruginosa, an opportunistic pathogen and common cause of hospital-acquired infections. Each helical filament contains thousands of monomers of the major pilin subunit, PilA. Each P. aeruginosa strain expresses one of five phylogenetically distinct major pilins, which vary in sequence and the nature of their associated accessory protein(s). Here, we present the backbone resonance assignment of the C-terminal domain of the group III PilA from strain PA14, a highly virulent, globally distributed clone. Secondary structure probabilities calculated from chemical shifts were in excellent agreement with previous homology modeling using a group V pilin structural template. The analysis revealed that the distal segment of the alphabeta loop had high microsecond-millisecond dynamics compared with other loop regions. Shortening of this segment by internal deletion abrogated pilus assembly in a dominant negative manner, suggesting a potential role in pilin polymerization. Pilin conformations that support optimal interactions of both the conserved hydrophobic N-termini in the pilus core and hydrophilic loops creating the filament surface may be necessary to produce stable filaments. PMID- 29342352 TI - Chemically Defined Antibody- and Small Molecule-Drug Conjugates for in Vivo Tumor Targeting Applications: A Comparative Analysis. AB - We present the first direct comparative evaluation of an antibody-drug conjugate and of a small molecule-drug conjugate for cancer therapy, using chemically defined products which bind with high-affinity to carbonic anhydrase IX, a marker of tumor hypoxia and of renal cell carcinoma. PMID- 29342355 TI - Convergence of Kirkwood-Buff Integrals of Ideal and Nonideal Aqueous Solutions Using Molecular Dynamics Simulations. AB - The computation of Kirkwood-Buff integrals (KBIs) using molecular simulations of closed systems is challenging due to finite system-size effects. One of the problems involves the incorrect asymptotic behavior of the radial distribution function. Corrections to rectify such effects have been proposed in the literature. This study reports a systematic comparison of the proposed corrections (as given by Ganguly et al. J. Chem. Theory Comput. 2013, 9, 1347 1355 and Kruger et al. J. Phys. Chem. Lett. 2013, 4, 4-7) to assess the asymptotic behavior of the RDFs, the KBIs, as well as the estimation of thermodynamic quantities for ideal urea-water and nonideal modified-urea-water mixtures using molecular dynamics simulations. The results show that applying the KBI correction suggested by Kruger et al. on the RDF corrected with the Ganguly et al. correction (denoted as B-KBI) yields improved KBI convergence for the ideal and nonideal aqueous mixtures. Different averaging regions in the running KBIs (correlated or long-range) are assessed, and averaging over the correlated region for large system sizes is found to be robust toward the change in the degree of solvent nonideality and concentration, providing good estimates of thermodynamic quantities. The study provides new insights into improving the KBI convergence, the suitability of different averaging regions in KBIs to estimate thermodynamic properties, as well as the applicability of correction methods to achieve KBI convergence for nonideal aqueous binary mixtures. PMID- 29342356 TI - The DARK Side of Total Synthesis: Strategies and Tactics in Psychoactive Drug Production. AB - Humankind has used and abused psychoactive drugs for millennia. Formally, a psychoactive drug is any agent that alters cognition and mood. The term "psychotropic drug" is neutral and describes the entire class of substrates, licit and illicit, of interest to governmental drug policy. While these drugs are prescribed for issues ranging from pain management to anxiety, they are also used recreationally. In fact, the current opioid epidemic is the deadliest drug crisis in American history. While the topic is highly politicized with racial, gender, and socioeconomic elements, there is no denying the toll drug mis- and overuse is taking on this country. Overdose, fueled by opioids, is the leading cause of death for Americans under 50 years of age, killing ca. 64,000 people in 2016. From a chemistry standpoint, the question is in what ways, if any, did organic chemists contribute to this problem? In this targeted review, we provide brief historical accounts of the main classes of psychoactive drugs and discuss several foundational total syntheses that ultimately provide the groundwork for producing these molecules in academic, industrial, and clandestine settings. PMID- 29342357 TI - Diffusion-Controlled Epitaxy of Large Area Coalesced WSe2 Monolayers on Sapphire. AB - A multistep diffusion-mediated process was developed to control the nucleation density, size, and lateral growth rate of WSe2 domains on c-plane sapphire for the epitaxial growth of large area monolayer films by gas source chemical vapor deposition (CVD). The process consists of an initial nucleation step followed by an annealing period in H2Se to promote surface diffusion of tungsten-containing species to form oriented WSe2 islands with uniform size and controlled density. The growth conditions were then adjusted to suppress further nucleation and laterally grow the WSe2 islands to form a fully coalesced monolayer film in less than 1 h. Postgrowth structural characterization demonstrates that the WSe2 monolayers are single crystal and epitaxially oriented with respect to the sapphire and contain antiphase grain boundaries due to coalescence of 0 degrees and 60 degrees oriented WSe2 domains. The process also provides fundamental insights into the two-dimensional (2D) growth mechanism. For example, the evolution of domain size and cluster density with annealing time follows a 2D ripening process, enabling an estimate of the tungsten-species surface diffusivity. The lateral growth rate of domains was found to be relatively independent of substrate temperature over the range of 700-900 degrees C suggesting a mass transport limited process, however, the domain shape (triangular versus truncated triangular) varied with temperature over this same range due to local variations in the Se/W adatom ratio. The results provide an important step toward atomic level control of the epitaxial growth of WSe2 monolayers in a scalable process that is suitable for large area device fabrication. PMID- 29342358 TI - Synthesis and Biological Characterization of Aryl Uracil Inhibitors of Hepatitis C Virus NS5B Polymerase: Discovery of ABT-072, a trans-Stilbene Analog with Good Oral Bioavailability. AB - ABT-072 is a non-nucleoside HCV NS5B polymerase inhibitor that was discovered as part of a program to identify new direct-acting antivirals (DAAs) for the treatment of HCV infection. This compound was identified during a medicinal chemistry effort to improve on an original lead, inhibitor 1, which we described in a previous publication. Replacement of the amide linkage in 1 with a trans olefin resulted in improved compound permeability and solubility and provided much better pharmacokinetic properties in preclinical species. Replacement of the dihydrouracil in 1 with an N-linked uracil provided better potency in the genotype 1 replicon assay. Results from phase 1 clinical studies supported once daily oral dosing with ABT-072 in HCV infected patients. A phase 2 clinical study that combined ABT-072 with the HCV protease inhibitor ABT-450 provided a sustained virologic response at 24 weeks after dosing (SVR24) in 10 of 11 patients who received treatment. PMID- 29342359 TI - Semiconducting Photothermal Nanoagonist for Remote-Controlled Specific Cancer Therapy. AB - Nanomedicine have shown success in cancer therapy, but the pharmacological actions of most nanomedicine are often nonspecific to cancer cells because of utilization of the therapeutic agents that induce cell apoptosis from inner organelles. We herein report the development of semiconducting photothermal nanoagonists that can remotely and specifically initiate the apoptosis of cancer cells from cell membrane. The organic nanoagonists comprise semiconducting polymer nanoparticles (SPNs) and capsaicin (Cap) as the photothermally responsive nanocarrier and the agonist for activation of transient receptor potential cation channel subfamily V member 1 (TRPV1), respectively. Under multiple NIR laser irradiation at the time scale of seconds, the nanoagonists can repeatedly and locally release Cap to multiply activate TRPV1 channels on the cellular membrane; the cumulative effect is the overinflux of ions in mitochondria followed by the induction of cell apoptosis specifically for TRPV1-postive cancer cells. Multiple transient activation of TRPV1 channels is essential to induce such a cell death both in vitro and in vivo because both free Cap and simple Cap-encapsulated nanoparticles fail to do so. The photothermally triggered release also ensures a high local concentration of the TRPV1 agonist at tumor site, permitting specific cancer cell therapy at a low systemic administration dosage. Our study thus demonstrates the first example of ion-channel-specific and remote-controlled drug delivery system for cancer cell therapy. PMID- 29342361 TI - High-Speed Spectroscopic Transient Absorption Imaging of Defects in Graphene. AB - Graphene grain boundaries (GBs) and other nanodefects can deteriorate electronic properties. Here, using transient absorption (TA) microscopy we directly visualized GBs by TA intensity increase due to change in density of state. We also observed a faster decay due to defect-accelerated carrier relaxation in the GB area. By line-illumination and parallel detection, we increased the TA intensity imaging speed to 1000 frames per second, which is 6 orders of magnitude faster than Raman microscopy. Combined with a resonant optical delay tuner which scans a 5.3 ps temporal delay within 92 MUs, our system enabled spectroscopic TA imaging, at a speed of 50 stacks per second, to probe and characterize graphene nanodefects based on the TA decay rate. Finally, we demonstrate real-time nondestructive characterization of graphene at a rolling speed of 0.3 m/min, which matches the fastest roll-to-roll manufacturing process reported. PMID- 29342360 TI - Sustained Delivery of Doxorubicin via Acetalated Dextran Scaffold Prevents Glioblastoma Recurrence after Surgical Resection. AB - The primary cause of mortality for glioblastoma (GBM) is local tumor recurrence following standard-of-care therapies, including surgical resection. With most tumors recurring near the site of surgical resection, local delivery of chemotherapy at the time of surgery is a promising strategy. Herein drug-loaded polymer scaffolds with two distinct degradation profiles were fabricated to investigate the effect of local drug delivery rate on GBM recurrence following surgical resection. The novel biopolymer, acetalated dextran (Ace-DEX), was compared with commercially available polyester, poly(l-lactide) (PLA). Steady state doxorubicin (DXR) release from Ace-DEX scaffolds was found to be faster when compared with scaffolds composed of PLA, in vitro. This increased drug release rate translated to improved therapeutic outcomes in a novel surgical model of orthotopic glioblastoma resection and recurrence. Mice treated with DXR loaded Ace-DEX scaffolds (Ace-DEX/10DXR) resulted in 57% long-term survival out to study completion at 120 days compared with 20% survival following treatment with DXR-loaded PLA scaffolds (PLA/10DXR). Additionally, all mice treated with PLA/10DXR scaffolds exhibited disease progression by day 38, as defined by a 5 fold growth in tumor bioluminescent signal. In contrast, 57% of mice treated with Ace-DEX/10DXR scaffolds displayed a reduction in tumor burden, with 43% exhibiting complete remission. These results underscore the importance of polymer choice and drug release rate when evaluating local drug delivery strategies to improve prognosis for GBM patients undergoing tumor resection. PMID- 29342362 TI - Stereospecific Syntheses of Enaminonitriles and beta-Enaminoesters via Domino Ring-Opening Cyclization (DROC) of Activated Cyclopropanes with Pronucleophilic Malononitriles. AB - Two novel synthetic protocols for the syntheses of highly functionalized five membered carbocyclic enaminonitriles and beta-enaminoesters have been developed via domino ring-opening cyclization (DROC) and DROC/decarboxylative tautomerization of activated cyclopropanes with malononitrile pronucleophiles, respectively. Both of the efficient strategies (yield up to 93%) have been generalized with various donor-acceptor and acceptor cyclopropanes as well as with malononitrile derivatives. The stereospecific variants of the two SN2-type DROC strategies have also been developed by employing enantiopure donor-acceptor (DA) cyclopropanes to synthesize the corresponding nonracemic products with excellent stereoselectivities (dr up to >99:1, ee up to >99%). PMID- 29342365 TI - A Standardized Diagnostic Ontology for Fibrotic Interstitial Lung Disease. PMID- 29342363 TI - Differential effects of inhibitory G protein isoforms on G protein-gated inwardly rectifying K+ currents in adult murine atria. AB - G protein-gated inwardly rectifying K+ (GIRK) channels are the major inwardly rectifying K+ currents in cardiac atrial myocytes and an important determinant of atrial electrophysiology. Inhibitory G protein alpha-subunits can both mediate activation via acetylcholine but can also suppress basal currents in the absence of agonist. We studied this phenomenon using whole cell patch clamping in murine atria from mice with global genetic deletion of Galphai2, combined deletion of Galphai1/Galphai3, and littermate controls. We found that mice with deletion of Galphai2 had increased basal and agonist-activated currents, particularly in the right atria while in contrast those with Galphai1/Galphai3 deletion had reduced currents. Mice with global genetic deletion of Galphai2 had decreased action potential duration. Tissue preparations of the left atria studied with a multielectrode array from Galphai2 knockout mice showed a shorter effective refractory period, with no change in conduction velocity, than littermate controls. Transcriptional studies revealed increased expression of GIRK channel subunit genes in Galphai2 knockout mice. Thus different G protein isoforms have differential effects on GIRK channel behavior and paradoxically Galphai2 act to increase basal and agonist-activated GIRK currents. Deletion of Galphai2 is potentially proarrhythmic in the atria. PMID- 29342364 TI - Influence of knee joint position and sex on vastus medialis regional architecture. AB - Ultrasound imaging was used to investigate vastus medialis (VM) architecture in 10 males and 10 females at different knee angles. Increase in muscle thickness occurs predominantly when the knee angle is changed from 0 degrees (full extension) and 45 degrees (p < 0.05); increases in VM pennation angle can be predominantly observed between 45 degrees and 90 degrees (p < 0.05). Sex differences in the VM architecture can be observed in the distal (p < 0.01) but not in the proximal region of the muscle (p > 0.11). PMID- 29342366 TI - Evaluation of the Get Active Questionnaire in community-dwelling older adults. AB - Physical activity screening prior to starting a physical activity program is important to identify if there are any underlying health conditions. However, many older adults do not complete such assessments prior to beginning their physical activity program. This project compared the Canadian Society for Exercise Physiology's newly developed Get Active Questionnaire (GAQ) to a standardized exercise stress test in terms of screening out versus screening in false-positive GAQ tests. A convenience sample of community-dwelling adults (male n = 58, female n = 54) aged 75 +/- 7 years from London, Ontario, Canada, was used. Participants completed a physical exam and physical activity screening session (i.e., stress test and GAQ) at a research laboratory that routinely conducts community-based referrals. One week after the initial visit, participants returned to the study site, completed the GAQ, and were asked questions about their perceptions of physical activity screening by a research assistant. The GAQ "screened in" participants, but it did not provide the same precision of "screening out" at-risk individuals as an exercise stress test; the GAQ reduced false-positives versus the stress test, yet there was a large proportion of high false-negative results reported. The GAQ shows promise in physical activity screening in older adults to engage in exercise safely. However, the lack of precision in physical-activity screening out of at-risk populations requires further evaluation. Questionnaires such as the GAQ should be evaluated in a larger study population at various time points to further assess the validity and reliability of physical activity screening tools. PMID- 29342367 TI - Cystic Fibrosis Foundation Pulmonary Guidelines. Use of Cystic Fibrosis Transmembrane Conductance Regulator Modulator Therapy in Patients with Cystic Fibrosis. AB - RATIONALE: Cystic fibrosis (CF) transmembrane conductance regulator (CFTR) modulators are a new class of medications targeting the underlying defect in CF. Ivacaftor (IVA) and IVA combined with lumacaftor (LUM; IVA/LUM) have been approved by the U.S. Food and Drug Administration (FDA) for use in patients with CF. However, the FDA label for these medications encompasses patient groups that were not studied as part of the drug approval process. CF clinicians, patients, and their families have recognized a need for recommendations to guide the use of these medications. OBJECTIVE: Develop evidence-based guidelines for CFTR modulator therapy in patients with CF. METHODS: A multidisciplinary committee of CF caregivers and patient representatives was assembled. A methodologist, an epidemiologist, a medical librarian, and a biostatistician were recruited to assist with the literature search, evidence grading, and generation of recommendations. The committee developed clinical questions using the Patient Intervention-Comparison-Outcome format. A systematic review was conducted to find relevant publications. The evidence was then evaluated using the GRADE (Grading of Recommendations, Assessment, Development, and Evaluation) approach, and recommendations were made based on this analysis. RESULTS: For adults and children aged 6 years and older with CF due to gating mutations other than G551D or R117H, the guideline panel made a conditional recommendation for treatment with IVA. For those with the R117H mutation, the guideline panel made a conditional recommendation for treatment with IVA for 1) adults aged 18 years or older, and 2) children aged 6-17 years with a forced expiratory volume in 1 second (FEV1) less than 90% predicted. For those with the R117H mutation, the guideline panel made a conditional recommendation against treatment with IVA for 1) children aged 12-17 years with an FEV1 greater than 90% predicted, and 2) children less than 6 years of age. Among those with two copies of F508del, the guideline panel made a strong recommendation for treatment with IVA/LUM for adults and children aged 12 years and older with an FEV1 less than 90% predicted; and made a conditional recommendation for treatment with IVA/LUM for 1) adults and children aged 12 years or older with an FEV1 greater than 90% predicted, and 2) children aged 6-11 years. CONCLUSIONS: Using the GRADE approach, we have made recommendations for the use of CFTR modulators in patients with CF. These recommendations will be of help to CF clinicians, patients, and their families in guiding decisions regarding use of these medications. PMID- 29342368 TI - Reply to Moodley: A Standardized Diagnostic Ontology for Fibrotic Interstitial Lung Disease. PMID- 29342369 TI - Added Sugar Consumption and Chronic Oral Disease Burden among Adolescents in Brazil. AB - Chronic oral diseases are rarely studied together, especially with an emphasis on their common risk factors. This study examined the association of added sugar consumption on "chronic oral disease burden" among adolescents, with consideration of obesity and systemic inflammation pathways through structural equation modeling. A cross-sectional study was conducted of a complex random sample of adolescent students enrolled at public schools in Sao Luis, Brazil ( n = 405). The outcome was chronic oral disease burden, a latent variable based on the presence of probing depth >=4 mm, bleeding on probing, caries, and clinical consequences of untreated caries. The following hypotheses were tested: 1) caries and periodontal diseases among adolescents are correlated with each other; 2) added sugar consumption and obesity are associated with chronic oral disease burden; and 3) chronic oral disease burden is linked to systemic inflammation. Models were adjusted for socioeconomic status, added sugar consumption, oral hygiene behaviors, obesity, and serum levels of interleukin 6 (IL-6). All estimators of the latent variable chronic oral disease burden involved factor loadings >=0.5 and P values <0.001, indicating good fit. Added sugar consumption (standardized coefficient [SC] = 0.212, P = 0.005), high IL-6 levels (SC = 0.130, P = 0.036), and low socioeconomic status (SC = -0.279, P = 0.001) were associated with increased chronic oral disease burden values. Obesity was associated with high IL-6 levels (SC = 0.232, P = 0.001). Visible plaque index was correlated with chronic oral disease burden (SC = 0.381, P < 0.001). Our finding that caries and periodontal diseases are associated with each other and with added sugar consumption, obesity, and systemic inflammation reinforces the guidance of the World Health Organization that any approach intended to prevent noncommunicable diseases should be directed toward common risk factors. PMID- 29342371 TI - Global-, Regional-, and Country-Level Economic Impacts of Dental Diseases in 2015. AB - Up-to-date information about the economic impact of dental diseases is essential for health care decision makers when seeking to make rational use of available resources. The purpose of this study was to provide up-to-date estimates for dental expenditures (direct costs) and productivity losses (indirect costs) due to dental diseases on the global, regional, and country level. Direct costs of dental diseases were estimated using a previously established systematic approach; indirect costs were estimated using an approach developed by the World Health Organization Commission on Macroeconomics and Health and factoring in 2015 values for gross domestic product and disability-adjusted life years from the Global Burden of Disease Study. The estimated direct costs of dental diseases amounted to $356.80 billion and indirect costs were estimated at $187.61 billion, totaling worldwide costs due to dental diseases of $544.41 billion in 2015. After adjustment for purchasing power parity, the highest levels of per capita dental expenditures were found for High-Income North America, Australasia, Western Europe, High-Income Asia Pacific, and East Asia; the highest levels of per capita productivity losses were found for Western Europe, Australasia, High-Income North America, High-Income Asia Pacific, and Central Europe. Severe tooth loss was found to imply 67% of global productivity losses due to dental diseases, followed by severe periodontitis (21%) and untreated caries (12%). From an economic perspective, improvements in population oral health may be highly beneficial and could contribute to further increases in people's well-being given available resources. PMID- 29342370 TI - FGF8 Signaling Alters the Osteogenic Cell Fate in the Hard Palate. AB - Fibroblast growth factor (FGF) signaling has been implicated in the regulation of osteogenesis in both intramembranous and endochondral ossifications. In the developing palate, the anterior bony palate forms by direct differentiation of cranial neural crest (CNC)-derived mesenchymal cells, but the signals that regulate the osteogenic cell fate in the developing palate remain unclear. In the present study, we investigated the potential role of FGF signaling in osteogenic fate determination of the palatal mesenchymal cells. We showed that locally activated FGF8 signaling in the anterior palate using a Shox2Cre knock-in allele and an R26RFgf8 allele leads to a unique palatal defect: a complete loss of the palatine process of the maxilla as well as formation of ectopic cartilaginous tissues in the anterior palate. This aberrant developmental process was accompanied by a significantly elevated level of cell proliferation, which contributes to an abnormally thickened palatal tissue, where the palatine process of the maxilla would normally form, and by a complete inhibition of Osterix expression, which accounts for the lack of bone formation. The coexpression of Runx2 initially with Sox9 and subsequently with Col II in the ectopic cartilaginous tissues indicates a conversion of osteogenic fate to a chondrogenic one. Consistent with the unique palatal phenotype, RNA-Sequencing analysis revealed that the augmented FGF8 signaling downregulated genes involved in ossification, biomineral tissue development, and bone mineralization but upregulated genes involved in cell proliferation, cartilage development, and cell fate commitment, which was further supported by quantitative real-time reverse transcription polymerase chain reaction validation of selected genes. Our results demonstrate that FGF8 signaling functions as a negative regulator of osteogenic fate and is sufficient to convert a subset of CNC cell-derived mesenchymal cells into cartilage in the anterior hard palate, which will have implications in future directed differentiation of CNC-derived precursor cells for clinical application. PMID- 29342373 TI - Errata. PMID- 29342374 TI - Errata. PMID- 29342372 TI - Enrichment of antibiotic resistance genes in soil receiving composts derived from swine manure, yard wastes, or food wastes, and evidence for multiyear persistence of swine Clostridium spp. AB - The impact of amendment with swine manure compost (SMC), yard waste compost (YWC), or food waste compost (FWC) on the abundance of antibiotic resistance genes in soil was evaluated. Following a commercial-scale application of the composts in a field experiment, soils were sampled periodically for a decade, and archived air-dried. Soil DNA was extracted and gene targets quantified by qPCR. Compared with untreated control soil, all 3 amendment types increased the abundance of gene targets for up to 4 years postapplication. The abundance of several gene targets was much higher in soil amended with SMC than in soil receiving either YWC or FWC. The gene target ermB remained higher in the SMC treatment for a decade postapplication. Clostridia were significantly more abundant in the SMC-amended soil throughout the decade following application. Eight percent of Clostridium spp. isolates from the SMC treatment carried ermB. Overall, addition of organic amendments to soils has the potential to increase the abundance of antibiotic resistance genes. Amendments of fecal origin, such as SMC, will in addition entrain bacteria carrying antibiotic resistance genes. Environmentally recalcitrant clostridia, and the antibiotic resistance genes that they carry, will persist for many years under field conditions following the application of SMC. PMID- 29342375 TI - Errata. PMID- 29342376 TI - Countering HIV - Three's the Charm? PMID- 29342377 TI - Bivalirudin versus Heparin Monotherapy in Myocardial Infarction. PMID- 29342378 TI - In the Balance. PMID- 29342379 TI - Elimination of Cost Sharing for Screening Mammography in Medicare Advantage Plans. AB - BACKGROUND: The Affordable Care Act (ACA) required most insurers and the Medicare program to eliminate cost sharing for screening mammography. METHODS: We conducted a difference-in-differences study of biennial screening mammography among 15,085 women 65 to 74 years of age in 24 Medicare Advantage plans that eliminated cost sharing to provide full coverage for screening mammography, as compared with 52,035 women in 48 matched control plans that had and maintained full coverage. RESULTS: In plans that eliminated cost sharing, adjusted rates of biennial screening mammography increased from 59.9% (95% confidence interval [CI], 54.9 to 65.0) in the 2-year period before cost-sharing elimination to 65.4% (95% CI, 61.8 to 69.0) in the 2-year period thereafter. In control plans, the rates of biennial mammography were 73.1% (95% CI, 69.2 to 77.0) and 72.8% (95% CI, 69.7 to 76.0) during the same periods, yielding a difference in differences of 5.7 percentage points (95% CI, 3.0 to 8.4). The difference in differences was 9.8 percentage points (95% CI, 4.5 to 15.2) among women living in the areas with the highest quartile of educational attainment versus 4.3 percentage points (95% CI, 0.2 to 8.4) among women in the lowest quartile. As indicated by the difference-in-differences estimates, after the elimination of cost sharing, the rate of biennial mammography increased by 6.5 percentage points (95% CI, 3.7 to 9.4) for white women and 8.4 percentage points (95% CI, 2.5 to 14.4) for black women but was almost unchanged for Hispanic women (0.4 percentage points; 95% CI, -7.3 to 8.1). CONCLUSIONS: The elimination of cost sharing for screening mammography under the ACA was associated with an increase in rates of use of this service among older women for whom screening is recommended. The effect was attenuated among women living in areas with lower educational attainment and was negligible among Hispanic women. (Funded by the National Institute on Aging.). PMID- 29342380 TI - E-Cigarettes and the Harm-Reduction Continuum. PMID- 29342382 TI - Noninferiority Trials. PMID- 29342381 TI - Long-Term Follow-up of Monoclonal Gammopathy of Undetermined Significance. AB - BACKGROUND: Monoclonal gammopathy of undetermined significance (MGUS) occurs in approximately 3% of persons 50 years of age or older. METHODS: We studied 1384 patients who were residing in southeastern Minnesota and in whom MGUS was diagnosed at the Mayo Clinic in the period from 1960 through 1994; the median follow-up was 34.1 years (range, 0.0 to 43.6). The primary end point was progression to multiple myeloma or another plasma-cell or lymphoid disorder. RESULTS: During 14,130 person-years of follow-up, MGUS progressed in 147 patients (11%), a rate that was 6.5 times (95% confidence interval [CI], 5.5 to 7.7) as high as the rate in the control population. The risk of progression without accounting for death due to competing causes was 10% at 10 years, 18% at 20 years, 28% at 30 years, 36% at 35 years, and 36% at 40 years. Among patients with IgM MGUS, the presence of two adverse risk factors - namely, an abnormal serum free light-chain ratio (ratio of kappa to lambda free light chains) and a high serum monoclonal protein (M protein) level (>=1.5 g per deciliter) - was associated with a risk of progression at 20 years of 55%, as compared with 41% among patients who had one adverse risk factor and 19% among patients who had neither risk factor. Among patients with non-IgM MGUS, the risk of progression at 20 years was 30% among those who had the two risk factors, 20% among those who had one risk factor, and 7% among those who had neither risk factor. Patients with MGUS had shorter survival than was expected in the control population of Minnesota residents of matched age and sex (median, 8.1 vs. 12.4 years; P<0.001). CONCLUSIONS: Significant differences were noted in the risk of progression between patients with IgM MGUS and those with non-IgM MGUS. Overall survival was shorter among patients with MGUS than was expected in a matched control population. (Funded by the National Cancer Institute.). PMID- 29342383 TI - Rib Fracture Associated with Bordetella pertussis Infection. PMID- 29342384 TI - Evaluation and Management of Lower-Extremity Ulcers. PMID- 29342385 TI - Ovarian Cancer Treatment - Are We Getting Warmer? PMID- 29342386 TI - Butterfly Glioma. PMID- 29342387 TI - Nudge Units to Improve the Delivery of Health Care. PMID- 29342388 TI - Crisis in the Sustainability of the U.S. Blood System. PMID- 29342389 TI - A Neglected Epidemic. PMID- 29342391 TI - Case 2-2018. A 41-Year-Old Woman with Vision Disturbances and Headache. PMID- 29342390 TI - Household-Contact Investigation for Detection of Tuberculosis in Vietnam. AB - BACKGROUND: Active case finding is a top priority for the global control of tuberculosis, but robust evidence for its effectiveness in high-prevalence settings is lacking. We sought to evaluate the effectiveness of household-contact investigation, as compared with standard, passive measures alone, in Vietnam. METHODS: We performed a cluster-randomized, controlled trial at clinics in 70 districts (local government areas with an average population of approximately 500,000 in urban areas and 100,000 in rural areas) in eight provinces of Vietnam. Health workers at each district clinic or hospital were assigned to perform either household-contact intervention plus standard passive case finding (intervention group) or passive case finding alone (control group). In the intervention districts, household contacts of patients with positive results for tuberculosis on sputum smear microscopy (smear-positive tuberculosis) were invited for clinical assessment and chest radiography at baseline and at 6, 12, and 24 months. The primary outcome was the cumulative incidence of registered cases of tuberculosis among household contacts of patients with tuberculosis during a 2-year period. RESULTS: In 70 selected districts, we enrolled 25,707 household contacts of 10,964 patients who had smear-positive pulmonary tuberculosis. In the 36 districts that were included in the intervention group, 180 of 10,069 contacts were registered as having tuberculosis (1788 cases per 100,000 population), as compared with 110 of 15,638 contacts (703 per 100,000) in the control group (relative risk of the primary outcome in the intervention group, 2.5; 95% confidence interval [CI], 2.0 to 3.2; P<0.001); the relative risk of smear-positive disease among household contacts in the intervention group was 6.4 (95% CI, 4.5 to 9.0; P<0.001). CONCLUSIONS: Household-contact investigation plus standard passive case finding was more effective than standard passive case finding alone for the detection of tuberculosis in a high-prevalence setting at 2 years. (Funded by the Australian National Health and Medical Research Council; ACT2 Australian New Zealand Clinical Trials Registry number, ACTRN12610000600044 .). PMID- 29342392 TI - Toxic Alcohols. PMID- 29342394 TI - Identification of Linear and Nonlinear Sensory Processing Circuits from Spiking Neuron Data. AB - Inferring mathematical models of sensory processing systems directly from input output observations, while making the fewest assumptions about the model equations and the types of measurements available, is still a major issue in computational neuroscience. This letter introduces two new approaches for identifying sensory circuit models consisting of linear and nonlinear filters in series with spiking neuron models, based only on the sampled analog input to the filter and the recorded spike train output of the spiking neuron. For an ideal integrate-and-fire neuron model, the first algorithm can identify the spiking neuron parameters as well as the structure and parameters of an arbitrary nonlinear filter connected to it. The second algorithm can identify the parameters of the more general leaky integrate-and-fire spiking neuron model, as well as the parameters of an arbitrary linear filter connected to it. Numerical studies involving simulated and real experimental recordings are used to demonstrate the applicability and evaluate the performance of the proposed algorithms. PMID- 29342395 TI - Indistinguishable Synapses Lead to Sparse Networks. AB - Neurons integrate information from many neighbors when they process information. Inputs to a given neuron are thus indistinguishable from one another. Under the assumption that neurons maximize their information storage, indistinguishability is shown to place a strong constraint on the distribution of strengths between neurons. The distribution of individual synapse strengths is found to follow a modified Boltzmann distribution with strength proportional to [Formula: see text]. The model is shown to be consistent with experimental data from Caenorhabditis elegans connectivity and in vivo synaptic strength measurements. The [Formula: see text] dependence helps account for the observation of many zero or weak connections between neurons or sparsity of the neural network. PMID- 29342393 TI - Hyperthermic Intraperitoneal Chemotherapy in Ovarian Cancer. AB - BACKGROUND: Treatment of newly diagnosed advanced-stage ovarian cancer typically involves cytoreductive surgery and systemic chemotherapy. We conducted a trial to investigate whether the addition of hyperthermic intraperitoneal chemotherapy (HIPEC) to interval cytoreductive surgery would improve outcomes among patients who were receiving neoadjuvant chemotherapy for stage III epithelial ovarian cancer. METHODS: In a multicenter, open-label, phase 3 trial, we randomly assigned 245 patients who had at least stable disease after three cycles of carboplatin (area under the curve of 5 to 6 mg per milliliter per minute) and paclitaxel (175 mg per square meter of body-surface area) to undergo interval cytoreductive surgery either with or without administration of HIPEC with cisplatin (100 mg per square meter). Randomization was performed at the time of surgery in cases in which surgery that would result in no visible disease (complete cytoreduction) or surgery after which one or more residual tumors measuring 10 mm or less in diameter remain (optimal cytoreduction) was deemed to be feasible. Three additional cycles of carboplatin and paclitaxel were administered postoperatively. The primary end point was recurrence-free survival. Overall survival and the side-effect profile were key secondary end points. RESULTS: In the intention-to-treat analysis, events of disease recurrence or death occurred in 110 of the 123 patients (89%) who underwent cytoreductive surgery without HIPEC (surgery group) and in 99 of the 122 patients (81%) who underwent cytoreductive surgery with HIPEC (surgery-plus-HIPEC group) (hazard ratio for disease recurrence or death, 0.66; 95% confidence interval [CI], 0.50 to 0.87; P=0.003). The median recurrence-free survival was 10.7 months in the surgery group and 14.2 months in the surgery-plus-HIPEC group. At a median follow up of 4.7 years, 76 patients (62%) in the surgery group and 61 patients (50%) in the surgery-plus-HIPEC group had died (hazard ratio, 0.67; 95% CI, 0.48 to 0.94; P=0.02). The median overall survival was 33.9 months in the surgery group and 45.7 months in the surgery-plus-HIPEC group. The percentage of patients who had adverse events of grade 3 or 4 was similar in the two groups (25% in the surgery group and 27% in the surgery-plus-HIPEC group, P=0.76). CONCLUSIONS: Among patients with stage III epithelial ovarian cancer, the addition of HIPEC to interval cytoreductive surgery resulted in longer recurrence-free survival and overall survival than surgery alone and did not result in higher rates of side effects. (Funded by the Dutch Cancer Society; ClinicalTrials.gov number, NCT00426257 ; EudraCT number, 2006-003466-34 .). PMID- 29342396 TI - Cross-Domain Metric and Multiple Kernel Learning Based on Information Theory. AB - Learning an appropriate distance metric plays a substantial role in the success of many learning machines. Conventional metric learning algorithms have limited utility when the training and test samples are drawn from related but different domains (i.e., source domain and target domain). In this letter, we propose two novel metric learning algorithms for domain adaptation in an information theoretic setting, allowing for discriminating power transfer and standard learning machine propagation across two domains. In the first one, a cross-domain Mahalanobis distance is learned by combining three goals: reducing the distribution difference between different domains, preserving the geometry of target domain data, and aligning the geometry of source domain data with label information. Furthermore, we devote our efforts to solving complex domain adaptation problems and go beyond linear cross-domain metric learning by extending the first method to a multiple kernel learning framework. A convex combination of multiple kernels and a linear transformation are adaptively learned in a single optimization, which greatly benefits the exploration of prior knowledge and the description of data characteristics. Comprehensive experiments in three real-world applications (face recognition, text classification, and object categorization) verify that the proposed methods outperform state-of-the art metric learning and domain adaptation methods. PMID- 29342397 TI - Imaging the Spatiotemporal Dynamics of Cognitive Processes at High Temporal Resolution. AB - This letter presents a noninvasive imaging technique that captures the exact timing and locations of cortical activity sequences that are specific to a cognitive process. These precise spatiotemporal sequences can be detected in the human brain as specific time-position pattern associated with a cognitive task. They are consistent with direct measurements of population activity recorded in nonhuman primates, thus suggesting that specific time-position patterns associated with a cognitive task can be identified. This imaging technique is based on estimating the amplitude of cortical current dipoles from MEG recordings. Although the spatial resolution of these estimations is poor (approximately 2 cm), the temporal resolution is high (milliseconds). We show that within these cortical current dipoles, time points of cortical activation can be identified as brief amplitude undulations and that sequences of these transients repeat with millisecond accuracy, hence making it possible to treat the timing of these transients as point processes. We illustrate the feasibility of finding spatiotemporal templates specific to the cognitive processes associated with following the rhythm of drumbeats that involve the activation at multiple cortical and cerebellar loci. These templates evolve at an accuracy of a few milliseconds. This approach can thus pave the way for new perspectives on the relationships between brain dynamics and cognition. PMID- 29342398 TI - Adaptive Structure Concept Factorization for Multiview Clustering. AB - Most existing multiview clustering methods require that graph matrices in different views are computed beforehand and that each graph is obtained independently. However, this requirement ignores the correlation between multiple views. In this letter, we tackle the problem of multiview clustering by jointly optimizing the graph matrix to make full use of the data correlation between views. With the interview correlation, a concept factorization-based multiview clustering method is developed for data integration, and the adaptive method correlates the affinity weights of all views. This method differs from nonnegative matrix factorization-based clustering methods in that it can be applicable to data sets containing negative values. Experiments are conducted to demonstrate the effectiveness of the proposed method in comparison with state-of the-art approaches in terms of accuracy, normalized mutual information, and purity. PMID- 29342399 TI - Information-Theoretic Bounds and Approximations in Neural Population Coding. AB - While Shannon's mutual information has widespread applications in many disciplines, for practical applications it is often difficult to calculate its value accurately for high-dimensional variables because of the curse of dimensionality. This article focuses on effective approximation methods for evaluating mutual information in the context of neural population coding. For large but finite neural populations, we derive several information-theoretic asymptotic bounds and approximation formulas that remain valid in high dimensional spaces. We prove that optimizing the population density distribution based on these approximation formulas is a convex optimization problem that allows efficient numerical solutions. Numerical simulation results confirmed that our asymptotic formulas were highly accurate for approximating mutual information for large neural populations. In special cases, the approximation formulas are exactly equal to the true mutual information. We also discuss techniques of variable transformation and dimensionality reduction to facilitate computation of the approximations. PMID- 29342400 TI - A Unifying Framework of Synaptic and Intrinsic Plasticity in Neural Populations. AB - A neuronal population is a computational unit that receives a multivariate, time varying input signal and creates a related multivariate output. These neural signals are modeled as stochastic processes that transmit information in real time, subject to stochastic noise. In a stationary environment, where the input signals can be characterized by constant statistical properties, the systematic relationship between its input and output processes determines the computation carried out by a population. When these statistical characteristics unexpectedly change, the population needs to adapt to its new environment if it is to maintain stable operation. Based on the general concept of homeostatic plasticity, we propose a simple compositional model of adaptive networks that achieve invariance with regard to undesired changes in the statistical properties of their input signals and maintain outputs with well-defined joint statistics. To achieve such invariance, the network model combines two functionally distinct types of plasticity. An abstract stochastic process neuron model implements a generalized form of intrinsic plasticity that adapts marginal statistics, relying only on mechanisms locally confined within each neuron and operating continuously in time, while a simple form of Hebbian synaptic plasticity operates on synaptic connections, thus shaping the interrelation between neurons as captured by a copula function. The combined effect of both mechanisms allows a neuron population to discover invariant representations of its inputs that remain stable under a wide range of transformations (e.g., shifting, scaling and (affine linear) mixing). The probabilistic model of homeostatic adaptation on a population level as presented here allows us to isolate and study the individual and the interaction dynamics of both mechanisms of plasticity and could guide the future search for computationally beneficial types of adaptation. PMID- 29342402 TI - Cutaneous Cryptococcosis Mimicking Leishmaniasis. PMID- 29342401 TI - Matched Placental and Circulating Plasmodium falciparum Parasites are Genetically Homologous at the var2csa ID1-DBL2X Locus by Deep Sequencing. AB - In pregnancy-associated malaria, infected erythrocytes accumulate in the placenta. It is unclear if in polyclonal infections this results in distinct peripheral and placental parasite populations. We used long amplicon deep sequencing of Plasmodium falciparum var2csa ID1-DBL2X from 15 matched peripheral and placental samples collected at delivery from a high transmission area to determine genetic homology. Despite substantial sequence variation and detecting 23 haplotypes, the matched pairs mostly contained the same genetic variants, with 11 pairs sharing 100% of their variants, whereas others showed some heterogeneity. Thus, at delivery, peripheral and placental parasites appear to intermix and placental genotypes can be inferred through peripheral sampling. PMID- 29342403 TI - 18F-FDG PET/CT in the Follow-Up of Mucosal Leishmaniasis. PMID- 29342404 TI - Association between Severity of Liver Disease, Frequency of Helicobacter pylori Infection, and Degree of Gastric Lesion in Egyptian Patients with Hepatitis B Virus Infection. AB - The relationship between hepatitis B virus (HBV) infection, severity of liver disease, frequency of Helicobacter pylori infection, and degree of gastric lesions was not yet fully investigated in Egyptian patients. The present work was performed on 100 Egyptian patients with HBV from the National Hepatology and Tropical Medicine Institute and 70 healthy volunteers as control group. The participants were subjected to full medical history taking, clinical examination, and laboratory investigations. All patients were positive for HBV surface antigen (HBV sAg), HBV DNA, and negative for hepatitis C virus antibodies. The severity of the liver disease was assessed using Child-Pugh scoring system. Screening of all participants for H. pylori Ag in stool was performed. Biopsy specimens were taken from the gastric lesions of H. pylori-infected patients for histopathological examination. The mean age of the patients and control group were 34.9 and 33.4 years, respectively. The levels of the liver enzymes were statistically higher in HBV patients than the control group. Helicobacter pylori Ag in stool was detected in 45.7% of the control group, and a higher percentage (60%) was detected in the patients group. Chronic gastritis with glandular atrophy and metaplasia was found in 15.6% of patients of Child-Pugh A, 70% of Child-Pugh B, and 100% of Child-Pugh C. It could be concluded that the prognosis of the liver disease significantly influences the severity of the gastric pathology in H. pylori infection. PMID- 29342405 TI - Human Laryngeal Infection by Clinostomum complanatum. PMID- 29342406 TI - Looking Back at 2017 with ASTMH Past President Patricia Walker: Political Challenges Remind Her that "Optimism is a Moral Imperative". PMID- 29342407 TI - Vitamin D and iron deficiencies in children and adolescents with cerebral palsy. AB - INTRODUCTION: Children and adolescents with cerebral palsy (CP) are at a greater risk of malnutrition and micronutrient deficiencies. Two deficiencies that we can study and treat are vitaminD (VD) and iron deficiencies; however, no studies have described these deficiencies in Chile. OBJECTIVE: To describe the status of VD and iron in patients with CP and evaluate the relationship with certain factors associated with deficiencies of these micronutrients. PATIENTS AND METHOD: We performed a descriptive, cross-sectional study including 69 patients aged between 2 and 21years, from two public hospitals. Data were obtained on demographic variables, motor function, use of feeding tube, and pharmacological treatment. We performed a nutritional assessment according to patterns of CP and determined 25 hydroxyvitaminD (25[OH]D) ferritin, and albumin levels. RESULTS: Patients' mean age was 11.1+/-4.9years; 43 (62.3%) were male; and 56 (81.2%) had moderate-to severe CP. Thirty-five (50.7%) used a nasogastric tube and/or gastrostomy; 15.4% were underweight and 73.8% were eutrophic, all with normal height. Twenty (29%) and 4 patients (6.2%) received VD and iron supplementation, respectively. Albuminaemia was normal in all patients. Mean 25(OH)D level was 24.3+/-8.8ng/mL; 33 patients (47.8%) had insufficiency and 21 (30.4%) deficiency; 36 patients (52.2%) had low ferritin levels. There was no association between 25(OH)D level and the other variables studied. Low ferritin levels were found to be associated with older age (P=.03), being male (P=.006), and feeding tube use (P=.006). CONCLUSIONS: The patients studied mainly had moderate-to-severe CP, with a high frequency of suboptimal VD values and low plasma ferritin; few patients received VD and/or iron supplementation. We suggest monitoring 25(OH)D and ferritin levels due to the high rate of deficiency of these nutrients; public hospitals should be equipped with drugs to treat these deficiencies. PMID- 29342408 TI - The role of regulatory RNAs (miRNAs) in asthma. AB - INTRODUCTION: Recently, a great deal of attention has been paid to the investigation of regulatory functions of microRNA. Currently, many different mechanisms involved in the pathogenesis of asthma are known, but the whole picture of pathogenesis has not yet been studied. CONCLUSIONS: MicroRNAs play an important role in the regulation of many cellular processes. Undoubtedly, these regulatory molecules are involved in the pathogenesis of asthma, and therefore can be potential targets for treatment. PMID- 29342409 TI - Development and characterization of an allergoid of cat dander for immunotherapy. AB - BACKGROUND: Allergy to cats is a frequent cause of sensitization to indoor allergens and currently there are few alternatives to specific immunotherapy with cat native extracts. The objective is to develop and characterize a new allergoid to increase the tools available for use in clinical practice. METHODS: The allergoid cat dander extract (ACD) was developed from a native cat dander extract (NCD) by modification with glutaraldehyde, and the optimal process control was determined by SDS-PAGE, DOT BLOT and determination of free amine groups. The ACD was characterized in protein profile by SDS-PAGE, size exclusion chromatography (SEC) and peptide footprint. The allergenic profile of ACD was determined by immunoblot, IgE CAP inhibition and IgG competition ELISA. The major allergen content in NCD was obtained by the ELISA sandwich protocol and was extrapolated to ACD. RESULTS: The control process determined the optimal development of the allergoid. The ACD obtained contains 182.28MUg/mg of protein and 11.90MUg/mg of Fel d 1. SDS-PAGE and SEC confirmed the presence of high molecular weight proteins in ACD, and the peptide footprint showed the presence of Fel d 1 and Fel d 7. The high degree of polymerization was evidenced with the determination of the reduction of lysine residues in the allergoid, resulting 91.96%. The ACD showed a significant loss of allergenicity respect to NCD, while the IgG-binding capacity was maintained. CONCLUSIONS: The ACD obtained presents a good safety profile, so would be a good alternative for treatment of cat allergy. PMID- 29342410 TI - Palliative non-resective surgery for drug-resistant epilepsy. PMID- 29342411 TI - Lumbar tattoos and epidural analgesia in 2018: time to let it go? PMID- 29342412 TI - Reply to Christian Seitz's Letter to the Editor re: Zhangqun Ye, Guohua Zeng, Huan Yang, et al. Efficacy and Safety of Tamsulosin in Medical Expulsive Therapy for Distal Ureteral Stones with Renal Colic: A Multicenter, Randomized, Double blind, Placebo-controlled Trial. Eur Urol 2018;73:385-91. PMID- 29342413 TI - Rapid detection of blaKPC directly from surveillance rectal swabs by EasyQ KPC. AB - The performance of EasyQ KPC assay was evaluated for the first time for blaKPC detection directly from surveillance rectal swabs without broth enrichment. Using conventional polymerase chain reaction as gold standard method, EasyQ KPC and culture-based molecular tests demonstrated a sensitivity/specificity of 100%/87.3% and 83.3%/98.2%, respectively. PMID- 29342414 TI - Bacilli community of saline-alkaline soils from the Ararat Plain (Armenia) assessed by molecular and culture-based methods. AB - The bacterial community composition in the A horizon of a natural saline-alkaline soil located in Ararat Plain (Armenia) was studied using molecular and culture based methods The sequence analysis of a 16S rRNA gene clone library and denaturing gradient gel electrophoresis (DGGE) profiles indicated dominance of Firmicutes populations. The majority of the sequences of the bacterial 16S rRNA gene library were close relatives of representatives belonging to the genera Halobacillus (41.2%), Piscibacillus (23.5%), Bacillus (23.5%) and Virgibacillus (11.8%). Eight novel moderately halophilic bacilli isolates were successfully obtained from the enriched cultures of the saline-alkaline soil samples. 16S rRNA gene sequence analyses of isolates revealed their affiliation (97.7-99.7% similarity) to representatives of the genera Bacillus, Piscibacillus and Halobacillus. All isolates were able to tolerate high concentrations of NaCl and highly alkaline conditions. This is the first study combining cultivation independent and -dependent approaches to reveal the bacterial diversity of the saline-alkaline soils of Ararat Plain and it suggested an important role of bacilli as key microbes in biogeochemical cycles of these environments. PMID- 29342415 TI - Lysosomes-targeting imaging and anticancer properties of novel bis-naphthalimide derivatives. AB - A series of novel N,N-bis(3-aminopropyl)methylamine bridged bis-naphthalimide derivatives NI1-NI8 containing saturated nitrogenous heterocycles were designed and synthesized, their cytotoxic activities against Hela, MCF-7, A549 and MGC-803 cells were investigated, Compounds NI1-NI4 modified with piperidine and piperazine exhibited good and selective cytotoxic activity, for instance, compounds NI1 and NI4 showed potent cytotoxic activity against Hela cells and MGC 803 cells with the IC50 values of 2.89, 060, 2.73 and 1.60 MUM, respectively, better than the control drug (Amonafide). However, compounds NI5-NI8 conjugated with pyrrole derivatives showed weak cytotoxic activities against the all tested cell lines. Furthermore, their DNA binding properties, fluorescence imaging and cell cycle were investigated. Interestingly, compounds NI1 and NI4 showed fluorescence enhancement because of the strong binding with Ct-DNA, and exhibited fluorescence imaging with Hela cells on the lysosomes. PMID- 29342417 TI - Editor's Choice - A Study of the Cost-effectiveness of Fenestrated/branched EVAR Compared with Open Surgery for Patients with Complex Aortic Aneurysms at 2 Years. AB - OBJECTIVES: The aim was to assess the cost-effectiveness of fenestrated and branched stent grafts (f/b EVAR) compared with open surgical repair (OSR) in thoraco-abdominal or complex abdominal aortic aneurysms (TAAA/AAA) at 2 years. METHODS: Two matched cohorts of patients with TAAA or complex AAA were compared after a follow-up of two years. Patients included in the WINDOW French multicentre prospective registry were treated by f/b EVAR, and OSR patients were extracted from the French national hospital discharge database. All cause mortality was assessed along with readmissions and hospital costs. The association between treatment and 2 year mortality was assessed by uni/multivariate Cox regression analyses using pre- and post-operative characteristics. Incremental cost-effectiveness ratios (ICER) were estimated for para/juxtarenal AAA, and infra- and supra-diaphragmatic TAAA. RESULTS: A total of 268 high risk patients were treated by f/b EVAR and 1678 average or low risk patients were treated with OSR during the same period. Mortality did not significantly differ between the groups (14.9% vs. 11.8%, p = .150) and multivariate Cox regressions did not find an association between 2 year mortality and treatment. Similar proportions of patients were readmitted at least once (69.7% with f/b EVAR vs. 64.2% with OSR, p = .096) but f/b EVAR patients had more readmissions on average (2.2 vs. 1.7, p = .001). Two year hospital costs were higher in the f/b EVAR group (?46,039 vs. ?22,779, p < .001). At 2 years, f/b EVAR was dominated (more expensive and less effective), except in the supra diaphragmatic TAAA subgroup with an ICER of ?42,195,800 per death averted. CONCLUSIONS: f/b EVAR in high risk patients offers similar 2 year mortality to OSR performed in lower risk patients but at a higher cost. The cost is mainly driven by the cost of the stent graft, which is not compensated for by lower healthcare resource consumption. Further studies are necessary to evaluate the cost-effectiveness in low risk f/b EVAR patients who may experience fewer complications. PMID- 29342418 TI - Functional characterization of 9 CYP2A13 allelic variants by assessment of nicotine C-oxidation and coumarin 7-hydroxylation. AB - Cytochrome P450 2A13 (CYP2A13) is responsible for the metabolism of chemical compounds such as nicotine, coumarin, and tobacco-specific nitrosamine. Several of these compounds have been recognized as procarcinogens activated by CYP2A13. We recently showed that CYP2A13*2 contributes to inter-individual variations observed in bladder cancer susceptibility because CYP2A13*2 might cause a decrease in enzymatic activity. Other CYP2A13 allelic variants may also affect cancer susceptibility. In this study, we performed an in vitro analysis of the wild-type enzyme (CYP2A13.1) and 8 CYP2A13 allelic variants, using nicotine and coumarin as representative CYP2A13 substrates. These CYP2A13 variant proteins were heterologously expressed in 293FT cells, and the kinetic parameters of nicotine C-oxidation and coumarin 7-hydroxylation were estimated. The quantities of CYP2A13 holoenzymes in microsomal fractions extracted from 293FT cells were determined by measuring reduced carbon monoxide-difference spectra. The kinetic parameters for CYP2A13.3, CYP2A13.4, and CYP2A13.10 could not be determined because of low metabolite concentrations. Five other CYP2A13 variants (CYP2A13.2, CYP2A13.5, CYP2A13.6, CYP2A13.8, and CYP2A13.9) showed markedly reduced enzymatic activity toward both substrates. These findings provide insights into the mechanism underlying inter-individual differences observed in genotoxicity and cancer susceptibility. PMID- 29342416 TI - Identification of novel quinazolinedione derivatives as RORgammat inverse agonist. AB - Novel small molecules were synthesized and evaluated as retinoic acid receptor related orphan receptor-gamma t (RORgammat) inverse agonists for the treatment of inflammatory and autoimmune diseases. A hit compound, 1, was discovered by high throughput screening of our compound library. The structure-activity relationship (SAR) study of compound 1 showed that the introduction of a chlorine group at the 3-position of 4-cyanophenyl moiety increased the potency and a 3-methylpentane 1,5-diamide linker is favorable for the activity. The carbazole moiety of 1 was also optimized; a quinazolinedione derivative 18i suppressed the increase of IL 17A mRNA level in the lymph node of a rat model of experimental autoimmune encephalomyelitis (EAE) upon oral administration. These results indicate that the novel quinazolinedione derivatives have great potential as orally available small molecule RORgammat inverse agonists for the treatment of Th17-driven autoimmune diseases. A U-shaped bioactive conformation of this chemotype with RORgammat protein was also observed. PMID- 29342419 TI - Investigation of the transport of xanthine dehydrogenase inhibitors by the urate transporter ABCG2. AB - Hyperuricemia induces gout and kidney stones and accelerates the progression of renal and cardiovascular diseases. Adenosine 5'-triphosphate-binding cassette subfamily G member 2 (ABCG2) is a urate transporter, and common dysfunctional variants of ABCG2, non-functional Q126X (rs72552713) and semi-functional Q141K (rs2231142), are risk factors for hyperuricemia and gout. A recent genome wide association study suggested that allopurinol, a serum uric acid-lowering drug that inhibits xanthine dehydrogenase, is a potent substrate of ABCG2. In this study, we aimed to examine the transport of xanthine dehydrogenase inhibitors via ABCG2. Our results show that ABCG2 transports oxypurinol, an active metabolite of allopurinol, whereas allopurinol and febuxostat, a new xanthine dehydrogenase inhibitor, are not substrates of ABCG2. The amount of oxypurinol transported by ABCG2 vesicles significantly increased in the presence of ATP, compared to that observed with mock vesicles. Since the half-life of oxypurinol is longer than that of allopurinol, the xanthine dehydrogenase-inhibiting effect of allopurinol mainly depends on its metabolite, oxypurinol. Our results indicate that the serum level of oxypurinol would increase in patients with ABCG2 dysfunction. PMID- 29342420 TI - [Use of bronchial blocker in emergent thoracotomy in presence of upper airway hemorrhage, and cervical spine fracture: a difficult decision]. AB - Female, 85 y.o., weighting 60kg, multiple trauma patient. After an initial laparotomy, an emergent thoracotomy was performed using a bronchial blocker for lung isolation (initial active suction was applied). During surgery, bronchial cuff was deflated, causing a self-limited tracheal blood flooding. A second lung isolation was attempted but it was not as effective as initially. Probably, a lung collapse with the same bronchial blocker was impaired in the second attempt because of the obstruction of bronchial blocker lumen by intraoperative endobronchial hemorrhage. Bronchial blocker active suction may contribute to obtain or accelerate lung collapse, particularly in patients that do not tolerate ventilator disconnection technique or lung surgical compression. The use of bronchial blockers technology was a valuable alternative to double lumen tubes in this case of emergent thoracotomy in the context of a patient having thoracic, abdominal trauma, severe laceration of tongue and apophysis odontoid fracture associated to massive hemorrhage, despite several pitfalls that could compromise its use. The authors intend to discuss the advantages and disadvantages of bronchial blockers comparing to double-lumen tubes for lung isolation, and the risks of our approach, in this complex multitrauma case. PMID- 29342421 TI - The relation between plasma alpha-synuclein level and clinical symptoms or signs of Parkinson's disease. AB - INTRODUCTION: Parkinson disease (PD) is the common neurodegenerative disease. alpha-Synuclein (ASN), main aggregating protein in neural cells of CNS in PD, was found in peripheral fluids. Testing ASN in plasma is potential test for diagnose PD, but previous studies are controversial. The aim of this study was to investigate if plasma ASN level may be a valuable biomarker, is the level of plasma ASN concentration different in various motor subtypes of diseases, is there a relation between the level of plasma ASN and the severity of motor symptoms. METHODS: Patients with PD hospitalized in Neurology Department, Medical College were performed sequencing the 8th and 9th exon of GBA gene. Next plasma ASN level was tested in 58 patients with sequenced GBA gene and in 38 healthy volunteers (HV), matched by the age (respectively 68.43 vs. 64.57 years of age) and sex (female %, respectively: 43.10 vs.44.74). Patients were assessed with the scales: UPDRS (II, III, IV), Hoehn-Yahr (HY) and qualified to PIGD or TD subtype. For homogeneity of the group patients with GBA mutation were excluded from the analysis. RESULTS: The ASN level did not differ between patients and HV (respectively: 4.53 vs. 3.73ng/ml) and between patients with different subtypes. There was inverse correlation between ASN and HY in PIGD subtype. CONCLUSIONS: Plasma ASN level is not valuable marker of the disease. It does not differ in subtypes of the disease. There is relation between plasma ASN level and the severity of the disease in PIGD subtype. PMID- 29342422 TI - Magnetic mesoporous molecularly imprinted polymers based on surface precipitation polymerization for selective enrichment of triclosan and triclocarban. AB - Novel magnetic mesoporous molecularly imprinted polymers (MMIPs) were prepared based on surface precipitation polymerization using Triclosan (TCS) as template and methacrylic acid as functional monomer. The synthesized MMIPs-TCS were applied to the adsorbent of magnetic solid-phase extraction (MSPE) coupled with HPLC for the enrichment and determination of TCS. The MMIPs-TCS were characterized by fourier-transform infrared spectrometry (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), N2 adsorption desorption transmission, and vibrating sample magnetometry. Under the optimum condition, the MMIPs-TCS-MSPE-HPLC method shows low limits of detection (LODs) (0.20-0.90 MUg L-1) and limits of quantification detection (LOQs) (0.66-2.97 MUg L-1), wide linear ranges from 10.0 to 1000 MUg L-1 for each compound with exception of 2,4,6-TCP from 20.0 to 1000 MUg L-1, and acceptable reproducibility (relative standard deviation, RSD <6.6% for intra-day, RSD <8.1% for inter-day). The satisfactory recoveries were in the range of 89.5%-108.4% with good RSDs less than 8.0% at the three spiked levels of 20, 50 and 80 MUg L-1. Moreover, the adsorption experiments show the MMIPs-TCS possess rapid binding affinity, excellent magnetic response, specific selectivity and high adsorption capacity toward TCS with a maximum adsorption capacity of 1955.8 MUg g-1. PMID- 29342423 TI - Does Bed Rest or Fluid Supplementation Prevent Post-Dural Puncture Headache? PMID- 29342424 TI - Corrigendum to "Effect of biochar on the presence of nutrients and ryegrass growth in the soil from an abandoned indigenous coking site: The potential role of biochar in the revegetation of contaminated site" [Sci. Total Environ. 601-602 (2017) 469-477]. PMID- 29342425 TI - Having the patience to allow a resident to operate on your grandmother. PMID- 29342426 TI - Coronary transfer during arterial switch-the heart of the matter? PMID- 29342427 TI - Reconstructive aortic valve surgery in the elderly: Techniques and outcomes. AB - OBJECTIVES: The aim of the study was to evaluate operative techniques and long term results after aortic valve or root repair in patients aged 75 years or more. METHODS: Between November 2002 and January 2016, a total of 815 patients underwent aortic valve or root repair. Among them were 100 patients aged 75 years or more (mean, 78 +/- 3; range, 75-88 years), including 17 patients operated on an emergency basis because of acute aortic dissection. None/trivial, mild, moderate, and severe insufficiency grades were presented in 9, 23, 27, and 41 patients, respectively. The surgery comprised root repair, cusp repair, and a combination of both in 45, 16, and 39 patients, respectively. RESULTS: Early (30 day) mortality and the rate of permanent neurologic deficit were 2% for each. The follow-up was 99% complete, resulting in 427 patient/years. During the follow-up period (mean duration, 4.3 +/- 3.2; range, 0.02-11.1 years), only 1 patient developed a relevant aortic insufficiency and required aortic valve reoperation. There were 24 late deaths, which occurred on average 50.0 +/- 40.6 months (range, 2.4-135.0) after surgery at the average patient age of 82 +/- 5 years (range, 75 90). Estimated survival at 5 and 8 years was 76.4% +/- 5.1% and 71.3% +/- 5.9%, respectively, and was similar to those of the sex- and age-matched general population. CONCLUSIONS: Reconstructive aortic valve surgery is a suitable and justifiable surgical option in selected elderly patients undergoing operation by surgeons with considerable experience in this kind of surgery. It offers low cardiac and valve-related mortality and morbidity, leading to life expectancy applicable to the patients' ages. PMID- 29342428 TI - Importance of mapping the external environment in image-guided video-assisted thoracoscopic surgery. PMID- 29342429 TI - Size does really matter. PMID- 29342430 TI - Tissue expander-stimulated lengthening of arteries for the treatment of midaortic syndrome in children. AB - BACKGROUND: Midaortic syndrome (MAS) is a rare condition characterized by stenosis of the abdominal aorta. Patients with disease refractory to medical management will usually require either endovascular therapy or surgery with use of prosthetic graft material for bypass or patch angioplasty. We report our early experience with a novel approach using a tissue expander (TE) to lengthen the normal native arteries in children with MAS, allowing primary aortic repair without the need for prosthetic graft material. METHODS: We conducted a retrospective review of patients with MAS undergoing the TE-stimulated lengthening of arteries (TESLA) procedure at our institution from 2010 to 2014. Data are presented as mean (range). RESULTS: Five patients aged 4.8 years (3-8 years) underwent the TESLA procedure. Stages of this procedure include the following: stage I, insertion of retroaortic TE; stage II, serial TE injections; and stage III, final repair with excision of aortic stenosis and primary end-to end aortic anastomosis. Stage II was completed in 4 months (1-9 months) with 12 (7-20) TE injections. Goal lengthening was achieved in all patients. Stage III could not be completed in one patient because of extreme aortic inflammation, which precluded safe excision of the aortic stenosis and required use of a prosthetic bypass graft. The other four patients completed stage III with two (one to three) additional vessels also requiring reconstruction (renal or mesenteric arteries). At 3.2 years (1-6 years) of follow-up, all patients are doing well. CONCLUSIONS: The TESLA procedure allows surgical correction of MAS without the need for prosthetic grafts in young children who are still growing. PMID- 29342431 TI - Comparison of access type on perioperative outcomes after endovascular aortic aneurysm repair. AB - OBJECTIVE: Endovascular aneurysm repair (EVAR) can be performed through percutaneous or surgical access. Our goal was to assess the difference in perioperative outcomes based on access type in a real-world setting. METHODS: The Vascular Quality Initiative (VQI) database was queried for EVAR. Univariable analysis and multivariable analysis were used to determine the independent effect of access type. RESULTS: There were 8340 (64%) and 4747 (36%) EVAR procedures performed through percutaneous and surgical access (3395 [72%] transverse and 1352 [28%] vertical incisions). In 347 cases (4%), percutaneous access failed. Percutaneous access was performed more in patients who were younger and male, had higher body mass index, were nonsmokers, and had commercial insurance. Multivariable analysis showed that surgical transverse compared with percutaneous access was associated with more cardiac complications (odds ratio, 1.53; 95% confidence interval [CI], 1.14-2.05; P = .005), prolonged operative time (means ratio [MR], 1.25; 95% CI, 1.23-1.27; P < .001), larger estimated blood loss (EBL; MR, 1.51; 95% CI, 1.45-1.57; P < .001), and length of stay (LOS; MR, 1.28; 95% CI, 1.23-1.32; P < .001). Open surgical access through vertical incisions compared with percutaneous access was associated with prolonged operative time (MR, 1.34; 95% CI, 1.31-1.37; P < .001), larger EBL (MR, 1.67; 95% CI, 1.58-1.77; P < .001), and LOS (MR, 1.49; 95% CI, 1.42-1.57; P < .001). Open access through a vertical incision compared with a transverse incision was associated with prolonged operative time (MR, 1.07; 95% CI, 1.04-1.1; P < .001), larger EBL (MR, 1.1; 95% CI, 1.04-1.18; P = .001), and LOS (MR, 1.17; 95% CI, 1.1-1.23; P < .001). Failed percutaneous access was seen more with previous bypass, ruptured aneurysm repair, general anesthesia, female sex, obesity, coronary artery disease, and preoperative aspirin use. Failed percutaneous access was associated with increased cardiac complications (odds ratio, 2.48; 95% CI, 1.38-4.6; P = .003), prolonged operative time (MR, 1.64; 95% CI, 1.56-1.72; P < .001), larger EBL (MR, 3.27; 95% CI, 2.95-3.62; P < .001), and longer postoperative LOS (MR, 1.47; 95% CI, 1.35-1.6; P < .001). There was no independent effect of access type on respiratory and lower extremity ischemic complications or mortality. CONCLUSIONS: The rate of percutaneous access in this contemporary series is higher than historically reported. Percutaneous access is associated with decreased operative time, EBL, and LOS and should be considered when possible. For open surgical access, transverse incisions are associated with lower operative time, EBL, and LOS. Failed percutaneous access is associated with higher cardiac complications as well as with operative time, EBL, and LOS. Extra caution should be used with patients at high risk for failed percutaneous access. Further prospective investigation is needed incorporating details about the quality of the access vessel to determine the interactions of these risk factors. PMID- 29342432 TI - Pharmacists' scope of practice in travel health: cregulations. AB - OBJECTIVES: The primary objective of this study was to assess pharmacists' authority to provide travel health services in each state and Washington, DC. Secondary objectives were to determine the need for collaborative practice agreements (CPAs), protocols, or prescriptions for this type of pharmacy practice and to identify jurisdictions where pharmacists are able to practice as travel health providers independent of CPAs or individual physician protocols. METHODS: An online survey was developed to assess pharmacists' authority to administer travel immunizations, furnish travel-related medications, and order travel related laboratory tests. Open-ended items on scope of practice, training requirements, and pending legislation or regulations were also included. The survey was distributed to state pharmacy association executives. A member of the research team searched pharmacy laws to clarify missing or inconsistent responses. Data were analyzed using descriptive statistics. RESULTS: The survey response rate was 76.5% (n = 39). Missing (n = 12) or conflicting (n = 6) response issues were resolved. Thus, data were available for 100% of jurisdictions. In most jurisdictions, pharmacists were able to provide one or more components of this service. In 44 jurisdictions (86.3%), pharmacists were allowed to administer travel immunizations. Twenty-seven jurisdictions (52.9%) allowed pharmacists to furnish travel medications. Pharmacists in 23 jurisdictions (43.1%) could order travel health-related laboratory tests. Pharmacists can practice independently in 1 state, but CPAs or individual physician protocols are required elsewhere. CONCLUSIONS: To the authors' knowledge, this study represents the first national pharmacists' travel health scope-of-practice analysis. While pharmacists in many jurisdictions can provide some components of travel health services, only one, New Mexico, currently allows pharmacists to practice all aspects independently. Thus, pharmacists continue to have an opportunity to expand scope of practice in travel health. Additional research may help to drive increased access to and use of travel health care. PMID- 29342433 TI - Applying the oath of a pharmacist to refugee health care. PMID- 29342434 TI - Community pharmacists as first responders in Puerto Rico after Hurricane Maria. PMID- 29342435 TI - The 2016 American Academy of Ophthalmology IRIS(r) Registry (Intelligent Research in Sight) Database: Characteristics and Methods. AB - PURPOSE: To describe the characteristics of the patient population included in the 2016 IRIS(r) Registry (Intelligent Research in Sight) database for analytic aims. DESIGN: Description of a clinical data registry. PARTICIPANTS: The 2016 IRIS Registry database consists of 17 363 018 unique patients from 7200 United States-based ophthalmologists in the United States. METHODS: Electronic health record (EHR) data were extracted from the participating practices and placed into a clinical database. The approach can be used across dozens of EHR systems. MAIN OUTCOME MEASURES: Demographic characteristics. RESULTS: The 2016 IRIS Registry database includes data about patient demographics, top-coded disease conditions, and visit rates. CONCLUSIONS: The IRIS Registry is a unique, large, real-world data set that is available for analytics to provide perspectives and to learn about current ophthalmic care and treatment outcomes. The IRIS Registry can be used to answer questions about practice patterns, use, disease prevalence, clinical outcomes, and the comparative effectiveness of different treatments. Limitations of the data are the same limitations associated with EHR data in terms of documentation errors or missing data and the lack of images. Currently, open access to the database is not available, but there are opportunities for researchers to submit proposals for analyses, for example through a Research to Prevent Blindness and American Academy of Ophthalmology Award for IRIS Registry Research. PMID- 29342436 TI - Iris Melanoma Outcomes Based on the American Joint Committee on Cancer Classification (Eighth Edition) in 432 Patients. AB - PURPOSE: The American Joint Committee on Cancer (AJCC) classification was updated to the eighth edition in January 2017, providing staging for iris melanoma. This study evaluated outcomes of iris melanoma per the AJCC classification, eighth edition. DESIGN: Retrospective case series. PARTICIPANTS: Four hundred thirty-two patients with iris melanoma. METHODS: Management including tumor resection, plaque radiotherapy, or enucleation. MAIN OUTCOME MEASURES: Local tumor recurrence, melanoma-related systemic metastasis, and melanoma-related death. RESULTS: Of 432 patients with iris melanoma, AJCC classification was category T1 (n = 324 [75%]), T2 (n = 83 [19%]), T3 (n = 2 [<1%]), and T4 (n = 23 [5%]). There was no difference in age, race, gender, eye, or iris color among T categories. Overall, Kaplan-Meier analysis of outcomes (at 5 and 10 years) revealed visual acuity reduction by 3 lines or more (42% and 54%, respectively), secondary glaucoma (29% and 33%, respectively), local recurrence (8% and 17%, respectively), secondary enucleation (12% and 19%, respectively), lymph node metastasis (1% and 1%, respectively), melanoma-related systemic metastasis (5% and 10%, respectively), and melanoma-related death (3% and 4%, respectively). Compared with T1 category, the hazard ratio (HR) for local recurrence in nonenucleated eyes was 1.31 for T2, not evaluable (NE) for T3 (because of small cohort), and 6.61 for T4; the HR for metastasis was 3.41 for T2, NE for T3 (because of small cohort), and 25.6 for T4; the HR for death was 7.51 for T2, NE for T3 (because of small cohort), and 26.5 for T4; and the odds ratio for enucleation was 1.23 for T2, 3.63 for T3, and 4.72 for T4. Features predictive of melanoma-related metastasis (multivariate analysis) included secondary glaucoma (P < 0.001; HR, 4.51), T2 category (vs. T1; P = 0.01; HR, 4.09), and T4 category (vs. T1; P < 0.001; HR, 30.8). Features predictive of melanoma-related death (multivariate analysis) included older age (P = 0.008; HR, 2.16 per 10-year increase), T2 category (vs. T1; P = 0.005; HR, 8.07), and T4 category (vs. T1; P < 0.001; HR, 20.3). CONCLUSIONS: The AJCC eighth edition classification provides prognostic stratification of iris melanoma. By multivariate analysis, the ratio for melanoma-related metastasis was 4 times greater in category T2 and 31 times greater in T4 compared with T1. The ratio for melanoma-related death was 8 times greater in category T2 and 20 times greater in T4 compared with T1. The cohort size for T3 was too small to provide useful information. PMID- 29342437 TI - Performance Rates Measured in the American Academy of Ophthalmology IRIS(c) Registry (Intelligent Research in Sight). PMID- 29342438 TI - Vitreoretinal Complications and Outcomes in 92 Eyes Undergoing Surgery for Modified Osteo-Odonto-Keratoprosthesis: A 10-Year Review. AB - PURPOSE: To analyze vitreoretinal (VR) complications and treatment outcomes in eyes undergoing modified osteo-odonto-keratoprosthesis (OOKP) surgery. DESIGN: Retrospective case series. PARTICIPANTS: All patients who underwent modified OOKP (mOOKP) surgery at a tertiary eye-care center from March 2003 to February 2013 were included. METHODS: Medical records were reviewed for relevant medical history, best-corrected visual acuity (BCVA), slit-lamp examination, ultrasound scan, oral examination findings, and VR complications. MAIN OUTCOME MEASURES: The BCVA at the last visit. Optimal anatomic outcome was attached retina with a normal intraocular pressure at the last visit. RESULTS: A total of 92 eyes of 90 patients were included. Indications for OOKP included Stevens-Johnson syndrome (n = 53), chemical injury (n = 36), and ocular cicatricial pemphigoid (n = 3). A total of 41 eyes of 39 patients developed VR complications, including vitritis (n = 21), retinal detachment (RD) (n = 12; primary RD = 5), retroprosthetic membrane (RPM) (n = 10; primary RPM = 2), endophthalmitis (n = 8), vitreous hemorrhage (VH) (n = 5; primary VH = 1), serous choroidal detachment (n = 5), hemorrhagic choroidal detachment (n = 2), and leak-related hypotony (n = 1). Mean interval from mOOKP surgery to occurrence of VR complication(s) was 43.8 months (median, 41.9 months; range, 0.2-95.5 months). After treatment of VR complication, visual improvement was seen in 17 eyes (42%) (mean improvement = 1.2 logarithm of the minimum angle of resolution [logMAR]; median, 0.8 logMAR; range, 0.1-2.5 logMAR), visual decline in 7 eyes (14%) (mean decline in BCVA = 0.6 logMAR; median, 0.4 logMAR; range, 0.3-1.8 logMAR), and no change in BCVA in 17 eyes (42%). However, BCVA >=6/60 was retained in 19 eyes and >=6/18 was retained in 9 eyes after final VR treatment. CONCLUSIONS: Vitreoretinal complications constitute a significant cause of visual morbidity in eyes undergoing mOOKP surgery and pose a challenging situation to manage. However, appropriate and timely intervention can achieve encouraging results. PMID- 29342439 TI - Review of Ophthalmology Medical Professional Liability Claims in the United States from 2006 through 2015. AB - PURPOSE: To describe characteristics of closed medical professional liability (MPL) claims against ophthalmologists in the United States. DESIGN: Retrospective analysis of MPL claims from 2006-2015. Data were obtained from the Physician Insurers Association of America (PIAA) Data Sharing Project (DSP). Comparison was made between ophthalmology and all healthcare specialties for physician demographics, prevalence and costs associated with closed claims, and resolution of claims. The most prevalent chief medical factor, presenting medical condition, operative procedure, outcomes, and resolution of ophthalmology claims were compared between the 2006-2010 and 2011-2015 periods. PARTICIPANTS: From 2006 2015, 90 743 MPL claims were closed: 2.6% (2325/90 743) of closed claims and 2.2% (564/24 670) of all paid claims were against ophthalmologists. METHODS: Retrospective analysis of MPL claims captured by the PIAA DSP over a 10-year period. MAIN OUTCOME MEASURES: Subspecialty pertaining to the claim, number of claims closed and paid, indemnity paid, allocated loss adjustment expenses, chief medical factor, presenting medical condition, operative procedure, outcome, and resolution. RESULTS: Only 24% of closed claims against ophthalmologists resulted in payment. Two-thirds were dropped, withdrawn, or dismissed. Ninety percent of claims that received a verdict were favorable toward the ophthalmologist. Cataract and cornea surgeries were the most prevalent and most costly operative procedures, accounting for 50% of all claims and $47 641 376 and $32 570 148 in total paid indemnity, respectively. Average indemnity was higher for corneal procedures ($304 476) than vitreoretinal procedures ($270 141) or oculoplastic procedures on the eyelid ($222 471) or orbit and eyeball ($183 467). The prevalence and cost of claims related to endophthalmitis declined from 2006-2010 (n = 38/1160 [3.3%]; average indemnity, $516 875) period to the 2011-2015 (n = 26/1165 [2.2%]; average indemnity, $247 083) period. Average indemnity paid ($280 227 vs. $335 578) and amount spent on legal defense ($41 450 vs. $46 391) was slightly lower among ophthalmologists compared with all healthcare specialties, respectively. CONCLUSIONS: Ophthalmology has a relatively low number of malpractice claims reported compared with other healthcare specialties and shows less spending on average indemnity and defense. Further studies are needed to investigate the reasons for the higher prevalence of claims related to cataract and corneal surgeries and the higher average indemnity paid for corneal procedures relative to vitreoretinal or oculoplastic procedures. PMID- 29342440 TI - The critical warning sign of real-time brainstem auditory evoked potentials during microvascular decompression for hemifacial spasm. AB - OBJECTIVE: The aim of this study was to define the critical warning sign of real time brainstem auditory evoked potential (BAEP) for predicting hearing loss (HL) after microvascular decompression (MVD) for hemifacial spasm (HFS). METHODS: Nine hundred and thirty-two patients with HFS who underwent MVD with intraoperative monitoring (IOM) of BAEP were analyzed. We used a 43.9 Hz/s stimulation rate and 400 averaging trials to obtain BAEP. To evaluate HL, pure-tone audiometry and speech discrimination scoring were performed before and one week after surgery. We analyzed the incidence for postoperative HL according to BAEP changes and calculated the diagnostic accuracy of significant warning criteria. RESULTS: Only 11 (1.2%) patients experienced postoperative HL. The group showing permanent loss of wave V showed the largest percentage of postoperative HL (p < 0.001). No patient who experienced only latency prolongation (>=1 ms) had postoperative HL. Loss of wave V and latency prolongation (>=1 ms) with amplitude decrement (>=50%) were highly associated with postoperative HL. CONCLUSIONS: Loss of wave V and latency prolongation of 1 ms with amplitude decrement >=50% were the critical warning signs of BAEP for predicting postoperative HL. SIGNIFICANCE: These findings elucidate the critical warning sign of real-time BAEP. PMID- 29342441 TI - Improving Professionalism Between Radiology and Emergency Medicine. PMID- 29342442 TI - HIV-related Refractory Hodgkin Lymphoma: A Case Report of Complete Response to Nivolumab. PMID- 29342443 TI - Test-retest reliability of transcranial magnetic stimulation EEG evoked potentials. AB - BACKGROUND: Transcranial magnetic stimulation (TMS)-evoked potentials (TEPs), recorded using electroencephalography (TMS-EEG), offer a powerful tool for measuring causal interactions in the human brain. However, the test-retest reliability of TEPs, critical to their use in clinical biomarker and interventional studies, remains poorly understood. OBJECTIVE/HYPOTHESIS: We quantified TEP reliability to: (i) determine the minimal TEP amplitude change which significantly exceeds that associated with simply re-testing, (ii) locate the most reliable scalp regions of interest (ROIs) and TEP peaks, and (iii) determine the minimal number of TEP pulses for achieving reliability. METHODS: TEPs resulting from stimulation of the left dorsolateral prefrontal cortex were collected on two separate days in sixteen healthy participants. TEP peak amplitudes were compared between alternating trials, split-halves of the same run, two runs five minutes apart and two runs on separate days. Reliability was quantified using concordance correlation coefficient (CCC) and smallest detectable change (SDC). RESULTS: Substantial concordance was achieved in prefrontal electrodes at 40 and 60 ms, centroparietal and left parietal ROIs at 100 ms, and central electrodes at 200 ms. Minimum SDC was found in the same regions and peaks, particularly for the peaks at 100 and 200 ms. CCC, but not SDC, reached optimal values by 60-100 pulses per run with saturation beyond this number, while SDC continued to improve with increased pulse numbers. CONCLUSION: TEPs were robust and reliable, requiring a relatively small number of trials to achieve stability, and are thus well suited as outcomes in clinical biomarker or interventional studies. PMID- 29342445 TI - Case report of an uncommon case of drain-site hernia after colorectal surgery. AB - BACKGROUND: trocar site herniation is a rare but potentially serious complication of laparoscopic surgery. Data about drain site hernia after laparoscopic surgery is scarce and anecdotal. CASE PRESENTATION: we report an uncommon case of drain site hernia in a man undergone laparoscopic left colectomy for a colonic adenocarcinoma who developed small bowel herniation in a 10 mm port site, in which a 24 FR drain was inserted leaving a real free space of 2 mm. DISCUSSION: laparoscopic approach has gained widespread acceptance in each surgical fields because of the perceived better postoperative outcomes in terms of less pain, faster recovery, and lower risk of incisional hernia. However, the risk of trocar site hernia has been known since 1967. Different risk factors for the development of trocar site hernia are described in literature: the trocar diameter and design, preexisting fascial defects, enlargement of a port site to remove a specimen, high blood glucose levels, obesity, increase intra-abdominal pressure as in chronic obstructive airway disease or extensive manipulation of the trocar during surgical intervention, which may enlarge the trocar site and thus induce small bowel herniation. However, the most important recognized risk factor for trocar site hernia is the size of the trocar. CONCLUSIONS: waiting for further studies, the lesson to be learnt from this case report is that, even if the free space after drain positioning is minimal, drain should not be positioned through the 10 mm trocar to allow the closure of fascial defect in order to avoid any herniation. PMID- 29342444 TI - Scarlet Fever Epidemic in China Caused by Streptococcus pyogenes Serotype M12: Epidemiologic and Molecular Analysis. AB - From 2011, Hong Kong and mainland China have witnessed a sharp increase in reported cases, with subsequent reports of epidemic scarlet fever in North Asia and the United Kingdom. Here we examine epidemiological data and investigate the genomic context of the predominantly serotype M12 Streptococcus pyogenes scarlet fever isolates from mainland China. Incident case data was obtained from the Chinese Nationwide Notifiable Infectious Diseases Reporting Information System. The relative risk of scarlet fever in recent outbreak years 2011-2016 was calculated using the median age-standardised incidence rate, compared to years 2003-2010 prior this outbreak. Whole genome sequencing was performed on 32 emm12 scarlet fever isolates and 13 emm12 non-scarlet fever isolates collected from different geographic regions of China, and compared with 203 published emm12 S. pyogenes genomes predominantly from scarlet fever outbreaks in Hong Kong (n=134) and the United Kingdom (n=63). We found during the outbreak period (2011-2016), the median age-standardised incidence in China was 4.14/100,000 (95% confidence interval (CI) 4.11-4.18), 2.62-fold higher (95% CI 2.57-2.66) than that of 1.58/100,000 (95% CI 1.56-1.61) during the baseline period prior to the outbreak (2003-2010). Highest incidence was reported for children 5years of age (80.5/100,000). Streptococcal toxin encoding prophage phiHKU.vir and phiHKU.ssa in addition to the macrolide and tetracycline resistant ICE-emm12 and ICE-HKU397 elements were found amongst mainland China multi-clonal emm12 isolates suggesting a role in selection and expansion of scarlet fever lineages in China. Global dissemination of toxin encoded prophage has played a role in the expansion of scarlet fever emm12 clones. These findings emphasize the role of comprehensive surveillance approaches for monitoring of epidemic human disease. PMID- 29342446 TI - The impact of happy and angry faces on working memory in depressed adolescents. AB - Recent cognitive models suggest that the ability to control emotional information in working memory (WM) may be implicated in the etiology and maintenance of depression. However, few studies have examined the effects of processing relevant and irrelevant emotional stimuli on WM performance in depressed adolescents. In the current study, depressed adolescents (n = 27) and healthy adolescents (n = 49) completed two versions of an emotional n-back task: a low WM load (0-back) task and a high WM load (2-back) task. In the emotion-relevant condition participants were asked to attend to the emotional expression of an angry, happy, or neutral face, whereas in the emotion-irrelevant condition participants were asked to attend to the gender of the face. The results showed a WM improvement for happy faces in the emotion-relevant condition and a WM impairment for happy faces in the emotion-irrelevant condition for healthy adolescents but not for depressed adolescents. No biases toward angry faces were found. These results demonstrate that depressed adolescents do not show a preferential processing of angry faces but rather fail to show a positivity bias as seen in healthy adolescents. This supports the theoretical notion that a depressive disorder is characterized by a blunted reactivity toward positive information and may provide new insights into the underlying mechanisms of youth depression. PMID- 29342447 TI - Design, synthesis and anticancer studies of novel aminobenzazolyl pyrimidines as tyrosine kinase inhibitors. AB - Abnormal signalling from the Protein tyrosine kinases (PTKs) like receptor tyrosine kinases and intracellular tyrosine kinases can lead to diseases such as cancer especially non-small cell lung cancer, chronic myeloid leukaemia and gastrointestinal stromal tumours. Various Protein tyrosine kinase inhibitors are available but face poor bioavailability, severe toxicities and recent cases of drug-resistant cancers prompts for development of better drug molecules. In this study we report the design and development of a novel Protein Tyrosine Kinase (PTK) inhibitor on the basis of pharmacophore modelling. Compound 2 (benzo[d]oxazol-2-ylamino)-N-(2-chloro-4-fluorophenyl)-4-methyl-6-(3-nitrophenyl) pyrimidine-5-carboxamide 31 was obtained containing essential pharmacophore structural features. This compound exhibited highest activity against leukaemia cell line (RPMI-8226) at 0.7244 uM, renal cancer cell line (A498) at 0.8511 uM and prostate cancer cell line (PC-3) at 0.7932 uM on the NCI five dose assay test. The PTK assay provides promising activity at IC50 of 0.07 uM in the human breast cancer cell line MDA-MB-468. Compound 31 had good intermolecular interaction with PTK in the molecular docking studies, this ligand-enzyme complex was found to stable in the MM-PBSA study over 100 ns. It had 54.22% oral bioavailability with Tmax of 0.60 h which is higher compared to the dasatinib with bioavailability and Tmax of 14-34% and 1-1.42 h respectively. Anticancer action of 31 was found to be impressive in pharmacokinetic studies making it a potential lead molecule. PMID- 29342448 TI - Generation of induced pluripotent stem cell line, CSSi002-A (2851), from a patient with juvenile Huntington Disease. AB - Huntington Disease (HD) is an autosomal dominant disorder characterized by motor, cognitive and behavioral features caused by a CAG expansion in the HTT gene beyond 35 repeats. The juvenile form (JHD) may begin before the age of 20years and is associated with expanded alleles as long as 60 or more CAG repeats. In this study, induced pluripotent stem cells were generated from skin fibroblasts of a 8-year-old child carrying a large size mutation of 84 CAG repeats in the HTT gene. HD appeared at age 3 with mixed psychiatric (i.e. autistic spectrum disorder) and motor (i.e. dystonia) manifestations. PMID- 29342449 TI - Increased Use of Adrenaline in the Management of Childhood Anaphylaxis Over the Last Decade. AB - BACKGROUND: We recently determined that allergy training programs have improved physician recognition and diagnosis of pediatric anaphylaxis in the last decade. OBJECTIVE: To investigate for changes in management, in particular the appropriate use of adrenaline for the treatment of anaphylaxis in a tertiary pediatric emergency department (PED). METHODS: We conducted a retrospective case note study including children aged 0 to 16 years coded and verified for anaphylaxis comparing cases in years 2003/2004 with 2012. This included standardized information on clinical presentation, demographic characteristics, vital signs, mode of transport, and management of anaphylaxis including the use of adrenaline and/or adjunct therapy. Follow-up management plans were also recorded. RESULTS: In 2003/2004, a total of 92 cases were coded and verified for anaphylaxis from 83,832 PED presentations compared with 159 cases from 71,822 PED presentations in 2012. A significantly higher proportion of cases were appropriately managed with adrenaline in 2012 compared with 2003/2004, when intensive training programs had not yet been introduced (P = .03). Vital signs were more frequently documented in 2012 (P < .001) than in 2003/2004, and there was significantly less administration of other medications (corticosteroids, bronchodilators, and antihistamines) (P < .05). Also, changes in discharge management occurred with an improved dispensing/prescription of adrenaline autoinjectors and more frequent follow-up arrangement with specialist allergy services (P < .001). CONCLUSIONS: There was a significant improvement in the management of anaphylaxis over this 10-year period. This change was observed after the introduction of intensified physician training programs in which anaphylaxis management was a key component highlighting the importance of cooperation between pediatric emergency and allergy services. PMID- 29342450 TI - Occupational allergic respiratory disease (rinoconjunctivitis and asthma) in a cheese factory worker. PMID- 29342451 TI - Decadal Changes in the Edible Supply of Seafood and Methylmercury Exposure in the United States. AB - BACKGROUND: Methylmercury (MeHg) exposure is associated with adverse effects on neurodevelopment and cardiovascular health. Previous work indicates most MeHg is from marine fish sold in the commercial market, but does not fully resolve supply regions globally. This information is critical for linking changes in environmental MeHg levels to human exposure in the U.S. population. OBJECTIVES: We used available data to estimate the geographic origins of seafood consumed in the United States (major ocean basins, coastal fisheries, aquaculture, freshwater) and how shifts in edible supply affected MeHg exposures between 2000 2002 and 2010-2012. METHODS: Source regions for edible seafood and MeHg exposure in the United States were characterized from national and international landing, export and import data from the Food and Agricultural Organization of the United Nations and the U.S. National Marine Fisheries Service. RESULTS: Our analysis suggests 37% of U.S. population-wide MeHg exposure is from mainly domestic coastal systems and 45% from open ocean ecosystems. We estimate that the Pacific Ocean alone supplies more than half of total MeHg exposure. Aquaculture and freshwater fisheries together account for an estimated 18% of total MeHg intake. Shifts in seafood types and supply regions between 2000-2002 and 2010-2012 reflect changes in consumer preferences (e.g., away from canned light meat tuna), global ecosystem shifts (e.g., northern migration of cod stocks), and increasing supply from aquaculture (e.g., shrimp and salmon). CONCLUSION: Our findings indicate global actions that reduce anthropogenic Hg emissions will be beneficial for U.S. seafood consumers because open ocean ecosystems supply a large fraction of their MeHg exposure. However, our estimates suggest that domestic actions can provide the greatest benefit for coastal seafood consumers. https://doi.org/10.1289/EHP2644. PMID- 29342452 TI - Estimated Effect of Temperature on Years of Life Lost: A Retrospective Time Series Study of Low-, Middle-, and High-Income Regions. AB - BACKGROUND: Numerous studies have reported a strong association between temperature and mortality. Additional insights can be gained from investigating the effects of temperature on years of life lost (YLL), considering the life expectancy at the time of death. OBJECTIVES: The goal of this work was to assess the association between temperature and YLL at seven low-, middle-, and high income sites. METHODS: We obtained meteorological and population data for at least nine years from four Health and Demographic Surveillance Sites in Kenya (western Kenya, Nairobi), Burkina Faso (Nouna), and India (Vadu), as well as data from cities in the United States (Philadelphia, Phoenix) and Sweden (Stockholm). A distributed lag nonlinear model was used to estimate the association of daily maximum temperature and daily YLL, lagged 0-14 d. The reference value was set for each site at the temperature with the lowest YLL. RESULTS: Generally, YLL increased with higher temperature, starting day 0. In Nouna, the hottest location, with a minimum YLL temperature at the first percentile, YLL increased consistently with higher temperatures. In Vadu, YLL increased in association with heat, whereas in Nairobi, YLL increased in association with both low and high temperatures. Associations with cold and heat were evident for Phoenix (stronger for heat), Stockholm, and Philadelphia (both stronger for cold). Patterns of associations with mortality were generally similar to those with YLL. CONCLUSIONS: Both high and low temperatures are associated with YLL in high-, middle-, and low-income countries. Policy guidance and health adaptation measures might be improved with more comprehensive indicators of the health burden of high and low temperatures such as YLL. https://doi.org/10.1289/EHP1745. PMID- 29342454 TI - Sodium Trimetaphosphate as a Novel Strategy for Matrix Metalloproteinase Inhibition and Dentin Remineralization. AB - The effect of sodium trimetaphosphate (STMP) as an antiproteolytic and remineralizing agent on demineralized dentin was evaluated in vitro. The inhibitory potential of STMP at 0.5, 1.5, 3.5, and 5% against recombinant matrix metalloproteinases (MMPs) MMPs-2 and -9 was assessed by zymography. To investigate its remineralization potential, 40 bovine root specimens were obtained and subjected to a demineralization protocol to produce caries-like dentin lesions. After that, dentin surfaces were divided into 3 areas: (1) mineralized (no treatment); (2) demineralized; and (3) demineralized/treated with STMP and submitted to a pH-cycling associated or not with STMP (1.5, 3.5, or 5% STMP, 10 min of treatment). After that, superficial hardness (SH) and cross sectional hardness (CSH) were determined. Polarized light microscopy (PLM) was used to qualitatively evaluate mineralization within the caries-like lesions. The zymographic analysis showed that STMP solution is a potent inhibitor of the gelatinolytic activity of MMPs-2 and -9 depending on the dose, since the lowest concentration (0.5%) partially inhibited the enzyme activity, while the higher concentrations completely inhibited enzyme activity. Regarding remineralization effect, only 1.5% STMP solution enhanced both the SH and CSH. PLM showed that the area treated with 1.5% STMP presented similar birefringence as mineralized sound dentin. In conclusion, 1.5% STMP solution is effective as an antiproteolytic agent against MMPs and promotes dentin remineralization. PMID- 29342453 TI - Fine Particulate Air Pollution and the Expression of microRNAs and Circulating Cytokines Relevant to Inflammation, Coagulation, and Vasoconstriction. AB - BACKGROUND: MicroRNAs (miRNAs) are a key factor in epigenetic regulation of gene expression, but miRNA responses to fine particulate matter (PM2.5) air pollution and their potential contribution to cardiovascular effects of PM2.5 are unknown. OBJECTIVE: We explored the potential influence of PM2.5 on the expression of selected cytokines relevant to systemic inflammation, coagulation, and vasoconstriction, and on miRNAs that may regulate their expression. METHODS: We designed a double-blind, randomized crossover study in which true and sham air purifiers were used to expose 55 healthy young adult students in Shanghai, China, to reduced or ambient levels of indoor PM2.5 during two-week periods, and we measured the expression (mRNA and protein) of 10 serum cytokines, and miRNAs that target them, after each intervention period. We used linear mixed-effect models to estimate associations of the intervention, and time-weighted personal PM2.5 exposures, with the cytokines, mRNA, and miRNAs; we also explored potential mediation by miRNAs. RESULTS: The findings were generally consistent for associations with the intervention and for associations with an interquartile range increase in time-weighted PM2.5. Specifically, higher PM2.5 exposure was positively associated with the expression (mRNA, protein, or both) of interleukin 1 (encoded by IL1), IL6, tumor necrosis factor (encoded by TNF), toll-like receptor 2 (encoded by TLR2), coagulation factor 3 (encoded by F3), and endothelin 1 (encoded by EDN1), and was negatively associated with miRNAs (miR-21 5p, miR-187-3p, miR-146a-5p, miR-1-3p, and miR-199a-5p) predicted to target mRNAs of IL1, TNF, TLR2, and EDN1. CONCLUSIONS: Our findings require confirmation but suggest that effects of PM2.5 on cardiovascular diseases may be related to acute effects on cytokine expression, which may be partly mediated through effects of PM2.5 on miRNAs that regulate cytokine expression. https://doi.org/10.1289/EHP1447. PMID- 29342455 TI - Endoscopic Full-Thickness Resection of a Colonic Lateral Spreading Tumor. AB - The Full-Thickness Resection Device (FTRD; Ovesco Endoscopy, Tubingen, Germany) combines endoscopic full-thickness resection (EFTR) of gastrointestinal lesions with closure and cutting of the tissue in one integrated procedure. It provides en-bloc resection with an integral wall specimen for histopathological evaluation. This resection technique is partially filling of the gaps between the current procedures of choice in endoscopy (endoscopic mucosal resection and endoscopic submucosal dissection) and surgery. We present the case of an EFTR procedure performed for a periappendicular lateral spreading tumor. PMID- 29342456 TI - Correlation between Resection Margin and Disease Recurrence with a Restricted Cubic Spline Model in Patients with Resected Hepatocellular Carcinoma. AB - BACKGROUND: The relationship between resection margin (RM) and recurrence of resected hepatocellular carcinoma (HCC) is unclear. METHODS: We reviewed clinical data for 419 patients with HCC. The oncologic outcomes were compared between 2 groups of patients classified according to the inflexion point of the restricted cubic spline plot. RESULTS: The patients were divided according to an RM of <1 cm (n = 233; narrow RM group) or >=1 cm (n = 186; wide RM group). The 5-year recurrence-free survival (RFS) rate was lower (34.8 vs. 43.8%, p = 0.042) and recurrence near the resection site was more frequent (4.7 vs. 0%, p = 0.010) in the narrow RM group. Patients with multiple lesions, or prior transarterial chemoembolization (TACE) or radiofrequency ablation (RFA) were excluded from subgroup analyses. In patients with a 2-5 cm HCC, the 5-year RFS was greater in the wide RM group (54.4 vs. 32.5%, p = 0.036). Narrow RM (hazard ratio 1.750, 95% CI 1.029-2.976, p = 0.039) was independently associated with disease recurrence. CONCLUSION: In patients with a single 2-5 cm HCC without prior TACE/RFA, an RM of >=1 cm was associated with lower risk of recurrence after liver resection. PMID- 29342457 TI - The von Hippel-Lindau Gene Is Required to Maintain Renal Proximal Tubule and Glomerulus Integrity in Zebrafish Larvae. AB - BACKGROUND: von Hippel-Lindau (VHL) disease is characterized by the development of benign and malignant tumours in many organ systems, including renal cysts and clear cell renal cell carcinoma. It is not completely understood what underlies the development of renal pathology, and the use of murine Vhl models has been challenging due to limitations in disease conservation. We previously described a zebrafish model bearing inactivating mutations in the orthologue of the human VHL gene. METHODS: We used histopathological and functional assays to investigate the pronephric and glomerular developmental defects in vhl mutant zebrafish, supported by human cell culture assays. RESULTS: Here, we report that vhl is required to maintain pronephric tubule and glomerulus integrity in zebrafish embryos. vhl mutant glomeruli are enlarged, cxcr4a+ capillary loops are dilated and the Bowman space is widened. While we did not observe pronephric cysts, the cells of the proximal convoluted and anterior proximal straight tubule are enlarged, periodic acid schiff (PAS) and Oil Red O positive, and display a clear cytoplasm after hematoxylin and eosine staining. Ultrastructural analysis showed the vhl-/- tubule to accumulate large numbers of vesicles of variable size and electron density. Microinjection of the endocytic fluorescent marker AM1-43 in zebrafish embryos revealed an accumulation of endocytic vesicles in the vhl mutant pronephric tubule, which we can recapitulate in human cells lacking VHL. CONCLUSIONS: Our data indicates that vhl is required to maintain pronephric tubule and glomerulus integrity during zebrafish development, and suggests a role for VHL in endocytic vesicle trafficking. PMID- 29342458 TI - Glucocorticoids Modulate Th1 and Th2 Responses in Asthmatic Mouse Models by Inhibition of Notch1 Signaling. AB - BACKGROUND: Notch1 has been linked to the pathogenesis of asthma due to its contribution on Th1/Th2 imbalance. gamma-Secretase inhibitor (GSI) acts as an effective blocker of Notch1 signaling. Glucocorticoids (GCs) are the most effective anti-inflammatory drugs for asthma. The present study investigated the involvement of the Notch1 pathway in the anti-inflammatory effect of GCs and its association with Th1/Th2 balance. METHODS: The asthma model was established in BALB/c mice by sensitization with ovalbumin (OVA). Dexamethasone (DEX; 1 mg/kg) and/or GSI (0.03 mg/kg) was orally or intranasally administrated. RESULTS: Compared to the OVA-sensitized mice, the administration of DEX and/or GSI significantly ameliorated the airway inflammation infiltration, goblet cell metaplasia, and airway hyper-responsiveness. The expression of IL-4 and IL-13, as well as the ratios of eosinophils and lymphocytes, were significantly decreased, whereas IFN-gamma and IL-2 levels were significantly increased in bronchoalveolar lavage fluid after the administration of DEX and GSI. The expressions of the Notch1/NICD1 pathway were decreased after DEX and/or GSI administration in lung tissues, especially in CD4+ T cells. Also, a reduction of GATA3 and elevation of T-bet levels were correlated with the upregulation of Th1/Th2 ratios in lung tissues. CONCLUSIONS: Through the inhibition of Notch1 signaling, both GSI and GCs could regulate Th1/Th2 balance involved in allergic airway inflammation in OVA-induced asthma. PMID- 29342459 TI - Risk Factors and Clinical Features in Cashew Nut Oral Food Challenges. AB - BACKGROUND: Cashew nuts (CN) are capable of causing severe allergic reactions. However, little has been reported about the details of CN oral food challenges (OFC). METHODS: CN-specific IgE (sIgE) levels were measured for 1 year in 66 patients who underwent an OFC with >3 g CN for diagnosis or confirmation of tolerance acquisition between June 2006 and August 2014. We retrospectively analyzed the OFC and patient background. RESULTS: The median (IQR) age of the 66 patients (48 boys/men and 18 girls/women) was 7.0 years (5.7-8.8). Twelve patients (18.2%) had a positive OFC result; 6 of 8 (75%) patients with a history of an immediate reaction to CN failed the OFC. Anaphylaxis was experienced by 5 of these 12 (42%) patients. A history of an immediate reaction to CN and the CN sIgE levels were significantly different for patients with a positive or negative OFC result (p < 0.01). Among patients without a previous immediate reaction to CN, the 95% positive predictive value (PPV) for the CN sIgE level for a positive OFC result was 66.1 kUA/L. CONCLUSIONS: A history of an immediate reaction to CN and high CN sIgE were risk factors for a positive OFC result. The number of positive OFC results was relatively low, but there was a high probability of anaphylaxis. We should consider the indication of OFC carefully for patients with a history of immediate reactions to CN and avoid OFC for patients without such a history whose CN sIgE values are >66.1 kUA/L (95% PPV). PMID- 29342460 TI - Role of the Frontal Sinus in Mediating Ocular Vestibular-Evoked Myogenic Potentials by Bone Vibration Stimuli Applied to the Forehead. AB - This study investigated ocular vestibular-evoked myogenic potential (oVEMP) tests via Fpz and Fz taps to assess the role of the frontal sinus in mediating oVEMP elicitation. Forty healthy subjects and 80 patients with Meniere disease (MD) underwent a series of oVEMP tests via a minishaker tapping at the Fpz and Fz sites in a randomized order. Response rates of oVEMP test via various tapping sites were compared. Dimensions of the frontal sinus were measured via CT scan. A significantly negative correlation between the age and height of the frontal sinus was noted, and the cutoff age for discriminating present and absent Fpz oVEMPs in MD patients was 52 years. Additionally, oVEMPs by Fpz tapping were more efficiently presented in males than females, likely because of the greater resonance by the larger height of the frontal sinus in males (3.88 +/- 0.68 cm) than females (3.42 +/- 0.67 cm). In conclusion, the height of the frontal sinus plays a role in mediating the elicitation of oVEMPs. The oVEMPs could be easily elicited by the first-order bone vibration (Fpz/Fz tapping) coupled with the second-order resonance effect (with a high extent of the frontal sinus). Thus, initial tapping at the Fpz site is suggested. If it fails, try the Fz site for screening the oVEMPs. PMID- 29342461 TI - Mechanism of Periostin Production in Human Bronchial Smooth Muscle Cells. AB - BACKGROUND: Asthma is a chronic airway inflammatory disease characterized by airway remodeling, in which the bronchial smooth muscle (BSM) cells play an important role. Periostin, a biomarker that reflects Th2-driven inflammatory diseases such as asthma, may play an important role in the asthmatic airway. Although periostin is mainly produced in airway epithelial cells and fibroblasts after interleukin (IL)-13 stimulation, whether BSM cells produce periostin remains unclear. Therefore, we investigated periostin production in BSM cells and the mechanisms involved. METHODS: Human BSM cells were cultured, and the effect of IL-13 stimulation on periostin production was evaluated using quantitative polymerase chain reaction and enzyme-linked immunosorbent assay (ELISA). We evaluated the phosphorylation of signal transducer and activator of transcription factor 6 (STAT6), extracellular signal-regulated kinase (ERK)1/2, and Akt after IL-13 stimulation. Furthermore, using ELISA, we evaluated the influence of several phosphorylation inhibitors on periostin production. RESULTS: Periostin mRNA expression increased in a dose- and time-dependent manner after IL-13 stimulation; periostin production was induced 24 and 48 h after stimulation. IL 13 stimulation induced the phosphorylation of STAT6, ERK1/2, and Akt. IL-13 induced periostin production was attenuated by inhibiting STAT6 phosphorylation and strongly suppressed by inhibiting mitogen-activated protein kinase kinase 1/2 phosphorylation or phosphatidylinositol 3-kinase (PI3K) phosphorylation. CONCLUSIONS: BSM cells produced periostin after IL-13 stimulation, via the JAK/STAT6, ERK1/2, and PI3K/Akt pathways. Understanding the mechanism of periostin production in BSM cells may help to clarify asthma pathogenesis. PMID- 29342462 TI - Reference Values for Respiratory Muscle Strength in Children and Adolescents. AB - BACKGROUND: Measurement of respiratory muscle function is important in the diagnosis of respiratory muscle disease, respiratory failure, to assess the impact of chronic diseases, and/or to evaluate respiratory muscle function after treatment. OBJECTIVES: To establish reference values for maximal inspiratory and expiratory pressure, and the tension-time index at rest in healthy children and adolescents aged 8-19 years, as well as to present sex- and age-related reference centiles normalized for demographic and anthropometric determinants. METHODS: In this cross-sectional observational study, demographic, anthropometric, and spirometric data were assessed, as well as data on respiratory muscle strength (PImax and PEmax) and work of breathing at rest (TT0.1), in a total of 251 children (117 boys and 134 girls; mean age 13.4 +/- 2.9 years). Reference values are presented as reference centiles developed by use of the lambda, mu, sigma method. RESULTS: Boys had significantly higher PImax and PEmax values. Next to sex and age, fat-free mass appeared to be an important predictor of respiratory muscle strength. Reference centiles demonstrated a slight, almost linear increase in PImax with age in boys, and a less steep increase with age in girls. TT0.1 values did not differ between boys and girls and decreased linearly with age. CONCLUSION: This study provides reference values for respiratory muscle strength and work of breathing at rest. In addition to sex and age, fat-free mass was found to be an important predictor of respiratory muscle strength in boys and girls. PMID- 29342463 TI - Sensation of Cold during the Ice Water Test Corresponds to the Perception of Pain during Botulinum Toxin Bladder Wall Injections. AB - AIMS: To investigate the association of bladder cold sensation (BCS) during the ice water test (IWT) and pain perception when botulinum toxin injections (BTI) are administered into the bladder wall. MATERIAL AND METHODS: In 86 patients with idiopathic overactive bladder, the BCS during the IWT was investigated. Patients were divided into 2 groups: with and without BCS. During subsequent administration of BTI, the number of perceived and painful injections as well as the pain levels on a 0-100 pain scale were compared in both groups using Student t test. RESULTS: Thirty-five patients reported a BCS, while 51 did not. After 10 BTI, the mean number of perceived injections was 7.9 in patients with and 2.4 in patients without BCS (p < 0.0001). The mean number of painful injections was 5.4 in patients with BCS and 4.3 in patients without (p < 0.001). Mean levels on a 0 100 pain scale were 33.7 in patients with and 17.8 in patients without cold sensation (p < 0.0001). CONCLUSION: The association of BCS during the IWT and pain to during BTI may implicate that the perceptions of cold and pain in the urinary bladder may use similar receptors and neuronal pathways. PMID- 29342464 TI - Risk Factors for Intraoperative Hypocapnia in Pediatric Neurosurgical Patients: A Retrospective Cohort Study. AB - BACKGROUND: Hypocapnia has been associated with an increased risk and adverse outcomes in the injured brain. This study aimed to identify risk factors of intraoperative hypocapnia in pediatric neurosurgical patients when tidal volumes and respiratory rates were determined based on their weight and age, respectively. METHODS: Electronic medical records of pediatric patients (<=18 years) who underwent neurosurgery from December 2014 to January 2016 were retrospectively reviewed. Minute ventilation was fixed according to each patient's weight and age. Hypocapnia was defined as arterial partial pressure of carbon dioxide <35 mm Hg from intraoperative arterial blood gas analysis. Patients were divided into hypocapnia and nonhypocapnia groups. Risk factors for intraoperative hypocapnia were found using univariable and multivariable logistic regression analyses. RESULTS: Of the 333 pediatric patients analyzed, 101 (30%) and 232 (70%) were included in the hypocapnia and nonhypocapnia groups, respectively. There was no difference in the minute ventilation between the two groups. The hypocapnia group had more patients taking valproate (8.9 vs. 2.2%; p = 0.008; OR, 4.441; 95% CI, 1.449-13.61) and carbonic anhydrase inhibitors (7.9 vs. 2.2%; p = 0.018; OR, 3.905; 95% CI, 1.245-12.25). An operation for hydrocephalus was more commonly performed in the hypocapnia group (26.7 vs. 15.9%; p = 0.017; OR, 1.923; 95% CI, 1.094-3.379). In the multivariable regression analysis, valproate (OR, 3.939; 95% CI, 1.250-12.41; p = 0.019), carbonic anhydrase inhibitor (OR, 3.345; 95% CI, 1.029-10.88; p = 0.045), and operation for hydrocephalus (OR, 1.838; 95% CI, 1.032-3.272; p = 0.039) were independent risk factors for intraoperative hypocapnia. CONCLUSIONS: Pediatric patients taking valproate and carbonic anhydrase inhibitors and who were scheduled for surgery of hydrocephalus were at risk of developing intraoperative hypocapnia during neurosurgery, a finding warning the surgeon that a conventional ventilatory strategy would endanger these patients. PMID- 29342466 TI - Deep Vein Thrombosis: A Rare Cause of Acute Testicular Pain. Case Report: Literature Review. AB - INTRODUCTION: Thrombosis is defined as the formation of a clot in a blood vessel that obstructs the flow of blood to the peripheral tissues. The incidence of thromboembolic disease ranges from 0.7 to 1.2% within urology. CASE REPORT: A 40 year-old warehouse worker male presented to the emergency department with worsening of a month's lasting scrotal pain. Physical examination showed the presence of an enlarged and painful left testicle with no other findings. Right testicle, penis and abdominal examination showed no abnormalities whatsoever. Bilateral varicocele with a partial thrombosis of the left one associated with left inguinal hernia was diagnosed by performing an urgent testicular ultrasound test. Conservative treatment was first given. However, since pain was not relieved, surgery was indicated with left varicocelectomy and a left inguinal hernia repair procedure leading to complete symptoms control and normal testicular flow in the control Doppler ultrasound study 2 months after the surgery. CONCLUSION: Spontaneous thrombosis of the pampiniform plexus is a rare entity where the management remains controversial. The clinical case we report here shows that surgery may be considered an effective option. PMID- 29342465 TI - De Novo Bladder Urothelial Neoplasm in Renal Transplant Recipients: A Retrospective, Multicentered Study. AB - BACKGROUND AND OBJECTIVES: Renal transplant recipients (RTRs) have a 2- to 7-fold risk of developing a neoplasm compared to general population. Bladder urothelial neoplasms in this cohort has an incidence of 0.4-2%. Many reports describe a more aggressive behavior. The objective of this study is to describe oncologic characteristics of bladder urothelial neoplasms in RTRs and to evaluate its recurrence, progression, and survival rates. METHODS: A retrospective multicentered study was performed evaluating all de novo bladder urothelial neoplasms cases in RTRs from 1988 to 2014. Descriptive statistical analysis and evaluation of recurrence, progression, and survival rates were performed. RESULTS: A total of 28 de novo bladder transitional cell carcinomas (TCCs) were identified (incidence rate 0.64%). Cancer-specific survival rates were 100, 75, and 70% after 1, 5, and 10 years, respectively. Age at diagnosis superior to 60 years was found to be a statistically significant variable for recurrence risk. Progression rate was 14%. Presence of CIS was significantly associated with progression. All cancer-specific deaths were in the high-risk group and all were progressions from non-muscle invasive to muscle invasive bladder cancer. CONCLUSIONS: Bladder urothelial neoplasms following renal transplant is associated with a trend toward worst prognosis. Early aggressive treatments, such as early radical cystectomy, might be advisable to reduce cancer-specific deaths. PMID- 29342467 TI - Boiling and Pressure Cooking Impact on IgE Reactivity of Soybean Allergens. AB - BACKGROUND: Soybean is one of the 8 foods that causes the most significant rate of food allergies in the USA and Europe. Thermal processing may impact on the allergenic potential of certain foods. We aimed to investigate modifications of the IgE-binding properties of soybean proteins due to processing methods that have been previously found to impact on the allergenicity of legumes such as peanut. METHODS: Soybean seeds were subjected to different thermal processing treatments. To evaluate their impact on the IgE-binding capacity of soybean proteins, individual sera from 25 patients sensitized to soybean were used in in vitro immunoassays. Detection of specific soybean allergens in untreated and treated samples was carried out with specific monoclonal and polyclonal antibodies. In vivo studies of skin prick testing (SPT) were also performed. RESULTS: The IgE reactivity of soybean was resistant to boiling up to 30 min, and this treatment had a higher impact when applied for 60 min. Treatment that combined heat and pressure produced a fragmentation of proteins in both soluble and insoluble fractions that went along with a decreased capacity to bind IgE and reduced the SPT wheal size. However, allergens such as 7S globulins survived this treatment. CONCLUSIONS: Thermal-processing methods able to attenuate the capacity of soybean proteins to bind IgE may contribute to the improvement of food safety and could constitute a potential strategy for the induction of tolerance to soybean. PMID- 29342468 TI - The Role of History of Gastro-Duodenal Ulcer in Patients with Upper Gastrointestinal Bleeding. AB - BACKGROUND: Some scoring systems have been introduced to predict the need for performing urgent endoscopy in patients with upper gastrointestinal bleeding (UGIB). However, in an emergency situation, this intervention is insufficient and cannot easily provide the required treatment. AIM: To identify new risk factors that can predict the need for endoscopic intervention (EI) in UGIB patients. METHODS: This is a retrospective cross-sectional study. Patients with UGIB admitted from April 2011 to August 2014 were included. The proportion of cases requiring EI and clinical factors (age, gender, antiplatelet/anticoagulant therapy, history of gastro-duodenal ulcer (GDU), systolic blood pressure, heart rate, hemoglobin, mean corpuscular volume, blood urea nitrogen-creatinine ratio (BUN/Cr ratio), prothrombin time-international normalized ratio, and Glasgow Blatchford Score (GBS) were analyzed using logistic regression models. RESULT: Of 378 patients who were included in this study, 180 were found to be with GDU. The proportion of cases requiring EI was significantly higher in those with GDU than in other causes except variceal bleeding (53.5 vs. 37.0%, p < 0.01). Multivariate analysis revealed that a history of GDU was an independent risk factor (OR 1.78, 95% CI 1.06-3.00) in addition to BUN/Cr ratio (OR 1.02, 95% CI 1.00-1.03) and GBS (OR 1.19, 95% CI 1.08-1.33). CONCLUSION: A history of GDU was an independent risk factor for predicting the need for EI in UGIB in addition to BUN/Cr ratio and GBS. PMID- 29342469 TI - The 2017 Update of the German Clinical Guideline on Epidemiology, Diagnostics, Therapy, Prevention, and Management of Uncomplicated Urinary Tract Infections in Adult Patients: Part 1. AB - OBJECTIVES: We aimed to update the 2010 evidence- and consensus-based national clinical guideline on the diagnosis and management of uncomplicated urinary tract infections (UTIs) in adult patients. MATERIALS AND METHODS: An interdisciplinary group consisting of 17 representatives of 12 medical societies and a patient representative was formed. Systematic literature searches were conducted in MEDLINE, -EMBASE, and the Cochrane Library to identify literature published in 2010-2015. RESULTS: We provide 75 recommendations and 68 statements in the updated evidence- and consensus-based national clinical guideline. The diagnostics part covers practical recommendations on cystitis and pyelonephritis for each defined patient group. Clinical examinations, as well as laboratory testing and microbiological pathogen assessment, are addressed. CONCLUSION: In accordance with the global antibiotic stewardship initiative and considering new insights in scientific research, we updated our German clinical UTI guideline to promote a responsible antibiotic use and to give clear hands-on recommendations for the diagnosis and management of UTIs in adults in Germany for healthcare providers and patients. PMID- 29342470 TI - "Nested Type" Bladder Cancer: Myth or Reality? PMID- 29342471 TI - Extra-articular manifestations and burden of disease in patients with radiographic and non-radiographic axial spondyloarthritis. AB - OBJECTIVE: Although the prevalence of peripheral and extra-articular disease in ankylosing spondylitis (AS) has been assessed in many studies, data on non radiographic axial spondyloarthritis (nr-axSpA) is scanty. The aim of this study was first, to compare radiographic-axSpA/AS (r-axSpA/AS) and nr-axSpA concerning peripheral arthritis and extra-articular manifestations (EAMs), and second, to assess potential differences between patient subgroups with or without EAMs regarding disease burden. METHODS: Data was extracted from our single center axSpA database. Patients having at least one of the EAMs (uveitis and/or inflammatory bowel disease (IBD) and/or psoriasis) were compared to those who did not have EAMs. Patients' clinical data including disease activity, functional and psychological status, physical limitations, quality of life (QoL) and magnetic resonance imaging of sacroiliac joints (SIJ MR) were evaluated. RESULTS: Patients with nr-axSpA (n=193) were younger, had female predominance, better functional and physical status, higher frequency of bone edema in SIJ MR and peripheral arthritis but similar QoL, prevalence of HLA B27 and EAMs compared to r-axSpA/AS (n=352). The prevalence of current or ever uveitis (14.5 vs 15.3%, p=0.791), psoriasis (6.2 vs 5.4%, p=0.689) or IBD (4.1 vs 3.4%, p=0.663) in nr-axSpA and r axSpA/AS were similar. In both subgroup of patients, EAMs positive and negative patients had similar functional status and QoL, as well as disease activity and laboratory parameters. CONCLUSION: Patients with nr-axSpA and r-axSpA/AS have similar prevalence of EAMs and clinical burden of disease. Having EAMs does not have a major influence on clinical parameters and patient reported outcome measures in nr-axSpA and r-axSpA/AS. PMID- 29342472 TI - Standard practice aiming clinical excellence in rheumatology. PMID- 29342473 TI - Effectiveness of early adalimumab therapy in psoriatic arthritis patients from Reuma.pt - EARLY PsA. AB - Objective To compare outcomes in psoriatic arthritis (PsA) patients initiating adalimumab (ADA), with short- and long-term disease duration and to evaluate the potential effect of concomitant conventional synthetic disease-modifying antirheumatic drugs (csDMARD) or glucocorticoids. Methods Analyses included adult PsA patients registered in the Rheumatic Diseases Portuguese Register (Reuma.pt) between June 2008-June 2016 who received ADA for >=3 months. Psoriatic Arthritis Response Criteria (PsARC) response, tender and swollen joint count, inflammatory parameters, patient (PtGA) and physician global assessment (PhGA), Disease Activity Score-28 joints (DAS28), and Health Assessment Questionnaire Disability Index (HAQ-DI) were compared between patients with <5 years of disease (early PsA) and those with >=5 years of disease duration (late PsA). Time to achieving PsARC response was estimated using the Kaplan-Meier method. Results Of 135 PsA patients treated with ADA, 126 had information on disease duration (earlyPsA, n=41). PsARC response was achieved by 72.9% of the patients (88.0% early PsA vs 62.2% late PsA; P=0.022) after 3 months and by 85.4% after 24 months (100% early PsA vs 75.9% late PsA; P=0.044). Early PsA patients achieved significantly less painful joints (2.7 vs 6.7, p=0.006), lower mean C-reactive protein (0.5 mg/dL vs 1.3 mg/dL; P=0.011), and PhGA (18.3 vs 28.1; P=0.020) at 3 months. In the long term, early PsA patients also had fewer swollen joints (0.3 vs 1.7; P=0.030) and lower PhGA (6.3 vs 21.9; P<0.001), C-reactive protein (0.4 mg/dL vs 1.0 mg/dL; P=0.026), and DAS28 (2.2 vs 3.2; P=0.030). HAQ-DI decreased in both groups reaching a mean value at 24 months of 0.4 and 0.8 (P=ns) in early and late PsA, respectively. Early PsA patients obtained PsARC response more rapidly than late PsA (3.8 and 7.4 months, respectively; P=0.008). Concomitant csDMARDs showed clinical benefit (2-year PsARC response, 88.3% vs 60.0%; P=0.044). Concomitant glucocorticoids had no effect on PsARC response over 2 years of follow-up. Persistence on ADA was similar in both groups. Conclusion Early PsA patients had a greater chance of improvement after ADA therapy and better functional outcome, and achieved PsARC response more rapidly than late PsA. In this cohort, comedication with csDMARDs was beneficial over 2 years. PMID- 29342474 TI - The importance of quality of life for work outcomes in patients with ankylosing spondylitis - a cross-sectional study. AB - AIMS: Work impairment is one of the most important exploration and one of the aims of rheumatologists. We aimed to determine the risk factors for employment state and predictive factors of work outcomes using multi-dimensional measures in patients with ankylosing spondylitis (AS) in this comprehensive study. METHODS: One hundred patients with AS (31 females and 69 males) were included into this study. Demographic properties, local factors, disease activity (BASDAI), functionality (BASFI), spinal mobility (BASMI), radiologic stage (BASRI), quality of life (AS-QoL), cardiopulmonary involvement, exercise stress test and work outcomes were investigated and compared in employed and un-employed patients. The work instability scale (AS-WIS) and work productivity activity impairment scale (WPAI:SpA) were selected as work outcomes. The predictive factors were analyzed using multiple stepwise linear regressions. MAJOR RESULTS: Thirty-two patients (mean age: 42,6+/-11.7) were unemployed and the risk factors for unemployment state were female sex, lower annual income level, and older age. Work disability was detected only in 5% of patients. Decreased chest mobility (beta: -0.398, p: <0.001), low annual income level (beta:-0.291, p:<0.001), higher co-morbidities (beta:0.237, p:0.004), poorer AS-QoL (beta:0.238, p:0,012) and poorer AS-WIS score (beta:0.289, p: 0,004) were the predictors of work impairment. The predictive factors for work instability were higher work impairment (beta:0.533, p<0.001) and poorer AS-QoL (beta: 0.426, p<0.001) scores. CONCLUSIONS: Employment state mainly depends on contextual factors including male sex, higher income, and younger age. Socioeconomic factors as well as clinical data such as QoL were predictive for work productivity. Poorer AS-QoL was also a predictive factor for work instability.We suggested effective interventions to improve clinical and economic status in patients with AS. PMID- 29342475 TI - Sexual dysfunction in systemic lupus erythematosus patients. PMID- 29342476 TI - [Determinants of the Distance-Related Choice of Physician Using the Example of Patients with Psoriasis and Chronic Wounds]. AB - STUDY AIM: There is only little knowledge about the influence of individual and sociodemographic characteristics determining patients' choice of their physicians. Furthermore, the role of patients' mobility is not clear. The primary aim of this study was the analysis of patients' decision patterns when choosing a physician. Patients' mobility as well as sociodemographic aspects were included in the analysis. METHODS: A multicenter cross-sectional study was conducted. Data were assessed at office-based dermatologists and at the University Medical Center Hamburg-Eppendorf. Patients with psoriasis and chronic wounds were interviewed about their behaviour when choosing a physician. Data analysis was performed using descriptive and multivariate methods. RESULTS: Data on 309 patients (50.5% male, mean age 58.3 years) were analysed. 211 patients were recruited at the outpatient unit of the university clinic, 98 at office-based physicians. The decision to visit a physician is primarily influenced by the physicians' competence, his range of service and the physician-patient relationship. The perspective of a better therapy as well as worsening of quality of life are responsible for a higher motivation to travel a longer distance to the physician. CONCLUSION: The results show a complex behaviour pattern of patients when choosing a physician. The physician's competence and his range of services are crucial for the patients' decision. The results also show that patients are willing to travel longer distances than necessary. PMID- 29342477 TI - [New Challenges: Diagnosis of Brain Death in Newborn, Children and Adolescents]. AB - BACKGROUND: According to the current update of the German guideline on brain death (BD), participation of paediatricians is now mandatory for the examination of BD in patients younger than 14 years. The present analysis focuses on the previous practice and highlights the challenges that arise from the current update. METHODS: Retrospective evaluation of the patient registry of the German organ procurement organisation (north-eastern bureau) between January, 2001 and December, 2010 with specified paediatric age groups according to the 4th update of the German guideline on BD from the 1st of July 2015. RESULTS: 133 patients (0 17 years) received at least one BD examination. Secondary brain damage was most frequent within the first 6 months of life whereas traumatic and other causes of primary brain damage were predominantly observed thereafter. The number of patients who received BD examination by paediatricians or were treated on neonatal/paediatric intensive care units declined with increasing age. In more than two-third of all paediatric patients, no paediatrician was involved in BD diagnostics. DISCUSSION: After enforcement of the 4th update of the German guideline on BD, the participation of qualified paediatric physicians must be increased significantly compared to previous practice. Advancements in the specialist training of paediatric physicians, adjustments in patient-centered paediatric care and interdisciplinary diagnostic teams may be solutions to meet this demand. PMID- 29342478 TI - Design and Implementation of a Visual Analytics Electronic Antibiogram within an Electronic Health Record System at a Tertiary Pediatric Hospital. AB - BACKGROUND: Hospitals use antibiograms to guide optimal empiric antibiotic therapy, reduce inappropriate antibiotic usage, and identify areas requiring intervention by antimicrobial stewardship programs. Creating a hospital antibiogram is a time-consuming manual process that is typically performed annually. OBJECTIVE: We aimed to apply visual analytics software to electronic health record (EHR) data to build an automated, electronic antibiogram ("e antibiogram") that adheres to national guidelines and contains filters for patient characteristics, thereby providing access to detailed, clinically relevant, and up-to-date antibiotic susceptibility data. METHODS: We used visual analytics software to develop a secure, EHR-linked, condition- and patient specific e-antibiogram that supplies susceptibility maps for organisms and antibiotics in a comprehensive report that is updated on a monthly basis. Antimicrobial susceptibility data were grouped into nine clinical scenarios according to the specimen source, hospital unit, and infection type. We implemented the e-antibiogram within the EHR system at Children's Hospital of Philadelphia, a tertiary pediatric hospital and analyzed e-antibiogram access sessions from March 2016 to March 2017. RESULTS: The e-antibiogram was implemented in the EHR with over 6,000 inpatient, 4,500 outpatient, and 3,900 emergency department isolates. The e-antibiogram provides access to rolling 12 month pathogen and susceptibility data that is updated on a monthly basis. E antibiogram access sessions increased from an average of 261 sessions per month during the first 3 months of the study to 345 sessions per month during the final 3 months. CONCLUSION: An e-antibiogram that was built and is updated using EHR data and adheres to national guidelines is a feasible replacement for an annual, static, manually compiled antibiogram. Future research will examine the impact of the e-antibiogram on antibiotic prescribing patterns. PMID- 29342479 TI - Time Spent on Dedicated Patient Care and Documentation Tasks Before and After the Introduction of a Structured and Standardized Electronic Health Record. AB - BACKGROUND: Physicians spend around 35% of their time documenting patient data. They are concerned that adopting a structured and standardized electronic health record (EHR) will lead to more time documenting and less time for patient care, especially during consultations. OBJECTIVE: This study measures the effect of the introduction of a structured and standardized EHR on documentation time and time for dedicated patient care during outpatient consultations. METHODS: We measured physicians' time spent on four task categories during outpatient consultations: documentation, patient care, peer communication, and other activities. Physicians covered various specialties from two university hospitals that jointly implemented a structured and standardized EHR. Preimplementation, one hospital used a legacy-EHR, and one primarily paper-based records. The same physicians were observed 2 to 6 months before and 6 to 8 months after implementation.We analyzed consultation duration, and percentage of time spent on each task category. Differences in time distribution before and after implementation were tested using multilevel linear regression. RESULTS: We observed 24 physicians (162 hours, 439 consultations). We found no significant difference in consultation duration or number of consultations per hour. In the legacy-EHR center, we found the implementation associated with a significant decrease in time spent on dedicated patient care (-8.5%). In contrast, in the previously paper-based center, we found a significant increase in dedicated time spent on documentation (8.3%) and decrease in time on combined patient care and documentation (-4.6%). The effect on dedicated documentation time significantly differed between centers. CONCLUSION: Implementation of a structured and standardized EHR was associated with 8.5% decrease in time for dedicated patient care during consultations in one center and 8.3% increase in dedicated documentation time in another center. These results are in line with physicians' concerns that the introduction of a structured and standardized EHR might lead to more documentation burden and less time for dedicated patient care. PMID- 29342480 TI - Phenolic Compounds as Arginase Inhibitors: New Insights Regarding Endothelial Dysfunction Treatment. AB - Endothelial dysfunction is characterised by the low bioavailability of nitric oxide with a relevant negative impact on the nitric oxide/cGMP pathway. The loss of nitric oxide/cGMP signaling may be caused by an increased arginase activity. Plant-derived substances, especially polyphenols, are compounds that have the potential to inhibit arginase activity and they may represent an attractive therapeutic option to combat clinical outcomes related to endothelial dysfunction. An extensive review was carried out using all available data published in English in the Pubmed database, and without restriction regarding the year of publication. Despite the increased number of new substances that have been tested as arginase inhibitors, it is rare to find a compound that satisfies all the toxicological criteria to be used in the development of a new drug. On the other hand, recent data have shown that substances from plants have great potential to be applied as arginase inhibitors, most of which are polyphenols. Of the relevant mechanisms in this process, the inhibition of arginase by natural products seems to act against endothelial dysfunction by reestablishing the vascular function and elevating nitric oxide levels (by increasing the amounts of substrate (L-arginine, and endothelial nitric oxide synthase activation and stabilisation) as well as decreasing the generation of reactive species (formed by uncoupledendothelial nitric oxide synthase). This review summarises several topics regarding arginase inhibition by natural substances as well as indicating this pathway as an emergent strategy to elevate nitric oxide levels in disorders involving endothelial dysfunction. In addition, some aspects regarding structural activity and future perspectives are discussed. PMID- 29342481 TI - [Pioneering research developments in psychiatry]. PMID- 29342482 TI - [Driving ability with neurological diseases]. PMID- 29342483 TI - [Fitness to drive after stroke]. AB - In Germany, patient information and expert testimony on driving ability requires knowledge of the corresponding legislation and the Guideline for expertises on driver aptitude. The testimony should clearly identify handicaps with regard to driving, give estimates on the future risks of a sudden loss of control, and also consider personal attitudes such as inadequate behavior, lack of insight etc. Physical handicaps often can be compensated for by restrains or restrictions such as vehicle modifications, daylight driving only etc.Both, information and testimony must give estimates on the risks of a sudden loss of control while driving by stroke recurrence or epileptic seizures. In accordance with the Risk of-Harm-Formula of the Canadian Cardiovascular Society methods are being discussed, by which an estimate of harmful traffic accidents due to stroke recurrence can be calculated. PMID- 29342484 TI - [(Neuro-)ophthalmogical aspects of driving ability]. AB - The requirements regarding visual functioning needed for driving ability are stipulated in Annex 6 of the German driving licence regulations: In case of a visual disorder an ophthalmological assessment is essential: It is of crucial importance for the examining ophthalmologist to exhaust all ocular-medical possibilities to enable the applicant to maintain or regain his driving permission. In the overwhelming majority of the cases this is eminently feasible.However, there is no way to attest driving ability in a patient suffering acute one-sided visual loss for a period of 3 months on the basis of legal recommendations. Concerning oculomotor disturbances, the expansion of the diplopic central visual field and the subjective restriction caused thereby are important: the central 20 degree area must be free of diplopia.According to the German driving license regulations, absolute homonymous visual field defects such as hemianopsia or quadrantic defects affecting the visual centre are incompatible with driving an automobile. Even training measures causing the patient to experience a sense of smooth orientation do nothing to mitigate this fact.Dealing with serious disturbances of visual function, as a matter of principle an ophthalmologist should provide an additional expertise before a positive decision on driving ability is made. PMID- 29342485 TI - [Driving ability in mild cognitive impairment and dementia]. AB - Executive functions, visuo-spatial processing and control of behaviour are pertinent for safe driving. In patients with mild cognitive impairment and dementia, these abilities can be impaired, in addition to age-related impairments, and driving ability can be compromised at an early stage. Neurologists and psychiatrists play an important role in the examination, counseling and, if required, the issuing of a medical driving ban. Mistakes in this process may ensue forensic sequelae for the involved physicians. The present article presents the relevant conditions and associated cognitive impairments, and gives some recommendations on the neuropsychological workup and on the communication with patients and relatives concerning driving. PMID- 29342486 TI - ? PMID- 29342487 TI - [Application of Intrabronchial Valves in High Risk Patients with Bronchopleural Fistula: an Alternative Therapeutic Option]. AB - OBJECTIVES: Persistent air leak or bronchopleural fistula (BPF) is a challenging and frequently observed problem after pulmonary resection and may lead to prolonged chest tube therapy. One efficient nonsurgical approach to manage such a fistula is the application of intrabronchial valves. This may support earlier chest tube removal and hospital discharge. METHODS: Between 04/2015 and 03/2017, n = 8 patients (n = 4 female) with severe pleural empyema and necrotising lung tissue defects developed prolonged air leak and persistent BPF after surgery. Radiological and bronchoscopical investigations revealed the presence of a BPF. For closure, intrabronchial valves were endoscopically inserted into the affected bronchi. In patients with repeat development of empyema, a chest wall window was required (n = 6 patients). RESULTS: The mean age was 61 years (45 - 85 years). After repeated surgical debridement, the space was sterile and the chest wall window was closed. After valve placement, air leaks were no longer detectable. In all patients, the procedures were well tolerated without any negative events. After successful valve placement, chest tubes could be removed in all n = 8 patients within 7 days (3 - 15 days) and patients were discharged thereafter. CONCLUSIONS: Placement of intrabronchial valves presents an alternative option to conventional surgical and non-surgical methods for the treatment of postoperative persistent air leak or BPF. Particularly in high risk patients, this procedure is safe and effective. PMID- 29342488 TI - The Effects of Folate Supplementation on Diabetes Biomarkers Among Patients with Metabolic Diseases: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. AB - Although several studies have evaluated the effect of folate supplementation on diabetes biomarkers among patients with metabolic diseases, findings are inconsistent. This review of randomized controlled trials (RCTs) was performed to summarize the evidence on the effects of folate supplementation on diabetes biomarkers among patients with metabolic diseases. Randomized-controlled trials (RCTs) published in PubMed, EMBASE, Web of Science and Cochrane Library databases up to 1 September 2017 were searched. Two review authors independently assessed study eligibility, extracted data, and evaluated risk of bias of included studies. Heterogeneity was measured with a Q-test and with I2 statistics. Data were pooled by using the fix or random-effect model based on the heterogeneity test results and expressed as standardized mean difference (SMD) with 95% confidence interval (CI). A total of sixteen randomized controlled trials involving 763 participants were included in the final analysis. The current meta analysis showed folate supplementation among patients with metabolic diseases significantly decreased insulin (SMD -1.28; 95% CI, -1.99, -0.56) and homeostasis model assessment of insulin resistance (HOMA-IR) (SMD -1.28; 95% CI, -1.99, 0.56). However, folate supplementation did not affect fasting plasma glucose (FPG) (SMD -0.30; 95% CI, -0.63, 0.02) and hemoglobin A1C (HbA1c) (SMD -0.29; 95% CI, -0.61, 0.03). The results of this meta-analysis study demonstrated that folate supplementation may result in significant decreases in insulin levels and HOMA-IR score, but does not affect FPG and HbA1c levels among patients with metabolic diseases. PMID- 29342489 TI - Correction: Artificial intelligence may help in predicting the need for additional surgery after endoscopic resection of T1 colorectal cancer. PMID- 29342490 TI - Detection of early neoplasia in Barrett's esophagus using lectin-based near infrared imaging: an ex vivo study on human tissue. AB - BACKGROUND AND STUDY AIMS: Endoscopic surveillance for Barrett's esophagus (BE) is limited by long procedure times and sampling error. Near-infrared (NIR) fluorescence imaging minimizes tissue autofluorescence and optical scattering. We assessed the feasibility of a topically applied NIR dye-labeled lectin for the detection of early neoplasia in BE in an ex vivo setting. METHODS: Consecutive patients undergoing endoscopic mucosal resection (EMR) for BE-related early neoplasia were recruited. Freshly collected EMR specimens were sprayed at the bedside with fluorescent lectin and then imaged. Punch biopsies were collected from each EMR under NIR light guidance. We compared the fluorescence intensity from dysplastic and nondysplastic areas within EMRs and from punch biopsies with different histological grades. RESULTS: 29 EMR specimens were included from 17 patients. A significantly lower fluorescence was found for dysplastic regions across whole EMR specimens (P < 0.001). We found a 41 % reduction in the fluorescence of dysplastic compared to nondysplastic punch biopsies (P < 0.001), with a sensitivity and specificity for dysplasia detection of 80 % and 82.9 %, respectively. CONCLUSION: Lectin-based NIR imaging can differentiate dysplastic from nondysplastic Barrett's mucosa ex vivo. PMID- 29342491 TI - Covered vs. uncovered self-expandable metal stents for malignant distal biliary strictures: a systematic review and meta-analysis. AB - BACKGROUND: Self-expandable metal stents (SEMS) are used for palliation of distal malignant biliary strictures, but the role of covered SEMS is less clear. We performed an up-to-date meta-analysis to compare the performance of covered and uncovered SEMS in patients with unresectable distal malignant biliary strictures. METHODS: A computerized medical search was performed using MEDLINE, EMBASE, and the Cochrane Library between 2000 and December 2016 to identify all randomized trials that compared covered with uncovered SEMS in patients with distal malignant biliary strictures. Primary outcomes were stent failure and patient mortality; secondary outcomes were stent dysfunction and adverse events. Pooled estimates were computed using the random effects model. RESULTS: Overall, 11 RCTs involving 1272 patients were included. The primary outcomes of stent failure and patient mortality did not differ significantly between covered and uncovered SEMS (hazard ratio [HR] 0.68, 95 % confidence interval [CI] 0.40 - 1.17; HR 0.89, 95 %CI 0.76 - 1.05, respectively). However, stent migration and sludge formation were much more common with covered SEMS (odds ratio [OR] 5.11, 95 %CI 1.84 - 14.17; OR 2.46, 95 %CI 1.37 - 4.43). The use of covered SEMS was associated with a lower rate of tumor ingrowth (OR 0.21, 95 %CI 0.09 - 0.50) but a higher rate of tumor overgrowth (OR 2.00, 95 %CI 1.15 - 3.48) compared with uncovered stents. The rates of procedure-related adverse events were similar in both groups. CONCLUSION: There was a risk reduction of about 32 % for both stent failure and patient mortality with covered SEMS but this difference was not significant. Migration and sludge rates were higher with covered SEMS, whereas tumor ingrowth was more likely with uncovered SEMS. The data show no added benefit of covered SEMS; further stent evolution is desirable. PMID- 29342492 TI - Efficacy and safety of endoscopic radiofrequency ablation for unresectable extrahepatic cholangiocarcinoma: a randomized trial. AB - BACKGROUND: Endoscopic placement of biliary stents to relieve jaundice is the main palliative treatment for unresectable extrahepatic cholangiocarcinoma. Endoscopic biliary radiofrequency ablation (RFA) has been reported to prolong stent patency, which may be beneficial in improving patient survival. However, available evidence is still insufficient, as most reported studies are retrospective case series. The aim of this study was to explore the clinical effect and safety of RFA in patients with unresectable extrahepatic cholangiocarcinoma. METHODS: 65 patients with unresectable extrahepatic cholangiocarcinoma, except Bismuth type III and IV hilar cholangiocarcinoma, were enrolled and randomly underwent either RFA combined with biliary stenting (RFA + stent group; n = 32) or biliary stent only (stent-only group; n = 33). Overall survival time, stent patency period, and postoperative adverse events were recorded. RESULTS: In the 21-month follow-up period, the overall mean survival time was significantly longer in the RFA + stent group than in the stent-only group (13.2 +/- 0.6 vs. 8.3 +/- 0.5 months; P < 0.001). The mean stent patency period of the RFA + stent group was also significantly longer than that of the stent-only group (6.8 vs. 3.4 months; P = 0.02). There was no significant difference in the incidence of postoperative adverse events between the two groups (6.3 % [2/32] vs. 9.1 % [3/33]; P = 0.67). CONCLUSION: Endoscopic RFA combined with stenting can significantly prolong survival and the stent patency period without increasing the incidence of adverse events in patients with extrahepatic cholangiocarcinoma patient, except Bismuth type III and IV hilar cholangiocarcinoma. This approach can be considered as a safe and effective palliative treatment for these patients. PMID- 29342493 TI - Molecular Docking Studies on Isocytosine Analogues as Xanthine Oxidase Inhibitors. AB - Flexible docking simulations were carried out on a series of isocytosine analogs as xanthine oxidase (XO) inhibitors. This was done by analysing the interaction of these compounds at the active site of XO. The binding free energies of the analogs were calculated using GoldScore. The binding modes of the best-fit conformation were studied, providing some handy important interactions. The results obtained henceforth provided an insight into the pharmacophoric structural requirements for XO inhibition for this class of molecules. PMID- 29342494 TI - How Does the Patient React After Reading the Informed Consent Form of a Gynecological Surgery? A Qualitative Study. AB - OBJECTIVE: To analyze the reaction of women after reading the Informed Consent Form (ICF) before undergoing elective gynecological/urogynecological surgeries. METHODS: A qualitative study with 53 women was conducted between September 2014 and May 2015. The analysis of the content was conducted after a scripted interview was made in a reserved room and transcribed verbatim. We read the ICF once more in front of the patient, and then she was interviewed according to a script of questions about emotions and reactions that occurred about the procedure and her expectations about the intra- and postoperative period. RESULTS: The women had a mean age of 52 years, they were multiparous, and most had only a few years of schooling (54.7%). The majority (60.4%) of them had undergone urogynecological surgeries. Hysterectomy and colpoperineoplasty were the most frequent procedures. Ten women had not undergone any previous abdominal surgery. Fear (34.6%) was the feeling that emerged most frequently from the interviews after reading the ICF, followed by indifference (30.8%) and resignation (13.5%). Nine women considered their reaction unexpected after reading the ICF. Three patients did not consider the information contained in the ICF to be sufficient, and 3 had questions about the surgery after reading the document. CONCLUSION: Reading the ICF generates fear in most women; however, they believe this feeling did not interfere in their decision-making process. PMID- 29342495 TI - Improving Perinatology Residents' Skills in Breaking Bad News: A Randomized Intervention Study. AB - OBJECTIVE: Breaking bad news (BBN) is particularly difficult in perinatology. Previous research has shown that BBN skills can be learned and improved when taught and practiced. This project evaluated whether a structured training session would enhance perinatology residents' skills in BBN. METHODS: This was a randomized controlled intervention study with year 1 to 4 Perinatology residents from a medical school in Brazil, during the 2014/15 school year. A total of 61 out of 100 (61%) eligible residents volunteered to a structured training program involving communicating a perinatal loss to a simulated patient (SP) portraying the mother followed by the SP's immediate feedback, both video recorded. Later, residents were randomly assigned to BBN training based on a setting, perception, invitation, knowledge, emotion and summary (SPIKES) strategy with video reviews (intervention) or no training (control group). All residents returned for a second simulation with the same SP blinded to the intervention and portraying a similar case. Residents' performances were then evaluated by the SP with a checklist. The statistical analysis included a repeated measures analysis of covariance (RM-ANCOVA). Complementarily, the residents provided their perceptions about the simulation with feedback activities. RESULTS: Fifty-eight residents completed the program. The simulations lasted on average 12 minutes, feedback 5 minutes and SPIKES training between 1h and 2h30m. There was no significant difference in the residents' performances according to the SPs' evaluations (p = 0.55). The participants rated the simulation with feedback exercises highly. These educational activities might have offset SPIKES training impact. CONCLUSION: The SPIKES training did not significantly impact the residents' performance. The residents endorsed the simulation with feedback as a useful training modality. Further research is needed to determine which modality is more effective. PMID- 29342496 TI - Adverse Events in the Treatment of Periprosthetic Fractures Around the Knee - a Clinical and Radiological Outcome Analysis. AB - BACKGROUND: The incidence of periprosthetic fractures associated with total knee arthroplasty (PpFxK) has been reported to be 0.3 - 5.5%. 40% of all cases are related to revision TKA. The most common localisation is the distal femur. Classification is performed according to Rorabeck (RB). RB I - II fractures are usually treated with locked plating and retrograde intramedullary nailing, whereas RB III fractures are an indication for revision arthroplasty using a hinged endoprosthesis. PpFxK of the patella can be classified according to Goldberg and PpFxK of the proximal tibia can be grouped as in Felix. Interprosthetic fractures can be regarded as a special type of PpFx. Due to the increasing numbers of TKA being performed, increasing numbers of adverse events in arthroplasty can be expected. Adverse events in the treatment of PpFxK occur in up to 41% of patients according to the literature and revision is needed in approximately 29% of all cases. Risk factors are age, osteoporosis, infection, malalignment, osteolysis/loosening of the implant and status post revision. PATIENTS: A clinical and radiographic follow-up was performed with 50 patients (14 men, 36 women) treated for PpFxK of the femur, tibia and patella between 2011 and 2015 at the department of arthroplasty at a level 1 trauma center in Europe. RESULTS: The follow-up of all patients was 68%, with an average of 19.1 +/- 14.6 (1 - 49) months between PpFxK and clinical follow-up. 16% of the patients were allocated for further treatment or revision surgery from other hospitals. The patients' median age was 78.0 +/- 8.8 (55 - 94) years. Most patients were affected by several orthopaedic and internal medical comorbidities. PpFxK classified as RB II were the most common fractures (60%, n = 30). PpFxK usually occurred 5.0 +/- 4.8 (0 - 20) years after index TKA (primary or revision TKA), mostly in patients with CR-retaining endoprosthesis, whereas PpFxK according to Felix occurred significantly earlier and mostly in hinged TKAs. Patients achieved on average a mean Oxford Knee Score of 31.1 +/- 9.9 (14 - 46) points. The functional Knee Society Score (KSS) was 52.6 +/- 24.4 (20 - 100) and the mean KSS was 58.7 +/- 26.8 (0 - 99) points (n = 25). Radiographic evaluation of the RB I - II patients showed frontal and sagittal malalignment in 20.6% of all cases after reduction and plate fixation. The overall rate of surgical adverse events was 50%; 44% of all RB patients needed revision surgery. Adverse events comprised non union, failure of osteosynthesis, infection, wound healing disorders and re fractures in the RB II and the Felix subgroup. CONCLUSION: PpFxK are severe injuries and are associated with a high rate of adverse events related to treatment. Patients often have a complex background and a history of revision surgery or periprosthetic joint infection. The treatment of PpFxK should therefore take place at a centre with expertise in traumatology as well as in revision arthroplasty. Preoperative infection diagnostic testing as well as adequate imaging (X-rays and CT) are essential. We furthermore advise early evaluation of revision arthroplasty, especially in elderly patients suffering from PpFxK with insufficient bone quality around the TKA and closeness between fracture and TKA. In the case of plate fixation, it is important to give attention to correct reduction - to prevent non-union, loosening of the implant and failure of the osteosynthesis - as well as to consider double plating. PMID- 29342497 TI - Non-antipsychotic catecholaminergic drugs for antipsychotic-induced tardive dyskinesia. AB - BACKGROUND: Tardive dyskinesia (TD) is a disabling movement disorder associated with the prolonged use of antipsychotic medication. Several strategies have been examined in the treatment of TD. Currently, however, there is no clear evidence of the effectiveness of these drugs in TD and they have been associated with many side effects. One particular strategy would be to use pharmaceutical agents which are known to influence the catecholaminergic system at various junctures. OBJECTIVES: 1. To determine the effects of any of the following drugs for antipsychotic-induced TD in people with schizophrenia or other chronic mental illnesses.i. Drugs which influence the noradrenergic system.ii. Dopamine receptor agonists.iii. Dopamine receptor antagonists.iv. Dopamine-depletor drugs.v. Drugs that increase the production or release of dopamine.2. To examine whether any improvement occurred with short periods of intervention (less than 6 weeks) and, if this did occur, whether this effect was maintained at longer periods of follow up.3. To examine if there was a differential effect for the various compounds.4. To examine whether the use of non-antipsychotic catecholaminergic drugs are most effective in those with more recent onset TD (less than five years). SEARCH METHODS: We retrieved 712 references from searching the Cochrane Schizophrenia Group Trials Register (July 2015 and April 2017). We also inspected references of all identified studies for further trials and contacted authors of trials for additional information. SELECTION CRITERIA: We selected studies if they were randomised controlled trials focusing on people with schizophrenia or other chronic mental illnesses and antipsychotic-induced tardive dyskinesia. We compared the use of catecholaminergic interventions versus placebo, no intervention, or any other intervention for the treatment of antipsychotic induced tardive dyskinesia. DATA COLLECTION AND ANALYSIS: We independently extracted data from these trials and we estimated risk ratios (RRs) with 95% confidence intervals (CIs). We assumed that people who left the studies early had no improvement. MAIN RESULTS: There are 10 included trials (N = 261) published between 1973 and 2010; eight are new from the 2015 and 2017 update searches. Forty-eight studies are excluded. Participants were mostly chronically mentally ill inpatients in their 50s, and studies were primarily of short (2 to 6 weeks) duration. The overall risk of bias in these studies was unclear, mainly due to poor reporting of allocation concealment and generation of the sequence. Studies were also not clearly blinded and we are unsure if data are incomplete or selectively reported, or if other biases were operating.One small, three-arm trial found that both alpha-methyldopa (N = 20; RR 0.33, 95% CI 0.14 to 0.80; low quality evidence) and reserpine (N = 20; RR 0.52 95% CI 0.29 to 0.96; low-quality evidence) may lead to a clinically important improvement in tardive dyskinesia symptoms compared with placebo after 2 weeks' treatment, but found no evidence of a difference between alpha-methyldopa and reserpine (N = 20; RR 0.60, 95% CI 0.19 to 1.86; very low quality evidence). Another small trial compared tetrabenazine and haloperidol after 18 weeks' treatment and found no evidence of a difference on clinically important improvement in tardive dyskinesia symptoms (N = 13; RR 0.93, 95% CI 0.45 to 1.95; very low quality evidence). No study reported on adverse events.For remaining outcomes there was no evidence of a difference between any of the interventions: alpha-methyldopa versus placebo for deterioration of tardive dyskinesia symptoms (1 RCT; N = 20; RR 0.33, 95% CI 0.02 to 7.32; very low quality evidence), celiprolol versus placebo for leaving the study early (1 RCT; N = 35; RR 5.28, 95% CI 0.27 to 102.58; very low quality evidence) and quality of life (1 RCT; N = 35; RR 0.87, 95% CI 0.68 to 1.12; very low quality evidence), alpha-methyldopa versus reserpine for deterioration of tardive dyskinesia symptoms (1 RCT; N = 20; not estimable, no reported events; very low quality evidence), reserpine or carbidopa/levodopa versus placebo for deterioration of tardive dyskinesia symptoms (2 RCTs; N = 37; RR 1.18, 95% CI 0.35 to 3.99; very low quality evidence), oxypertine versus placebo for deterioration of mental state (1 RCT; N = 42; RR 2.20, 95% CI 0.22 to 22.45; very low quality evidence), dopaminergic drugs (amantadine, bromocriptine, tiapride, oxypertine, carbidopa/levodopa) versus placebo for leaving the study early (6 RCTs; N = 163; RR 1.29, 95% CI 0.65 to 2.54; very low quality evidence), and tetrabenazine versus haloperidol for deterioration of tardive dyskinesia symptoms (1 RCT; N = 13; RR 1.17, 95% CI 0.09 to 14.92) and leaving the study early (1 RCT; N = 13; RR 0.23, 95% CI 0.01 to 4.00). AUTHORS' CONCLUSIONS: Although there has been a large amount of research in this area, many studies were excluded due to inherent problems in the nature of their cross-over designs. Usually data are not reported before the cross-over and the nature of TD and its likely response to treatments make it imprudent to use this data. The review provides little usable information for service users or providers and more well-designed and well reported studies are indicated. PMID- 29342498 TI - Patient reminder and recall interventions to improve immunization rates. AB - BACKGROUND: Immunization rates for children and adults are rising, but coverage levels have not reached optimal goals. As a result, vaccine-preventable diseases still occur. In an era of increasing complexity of immunization schedules, rising expectations about the performance of primary care, and large demands on primary care providers, it is important to understand and promote interventions that work in primary care settings to increase immunization coverage. One common theme across immunization programs in many nations involves the challenge of implementing a population-based approach and identifying all eligible recipients, for example the children who should receive the measles vaccine. However, this issue is gradually being addressed through the availability of immunization registries and electronic health records. A second common theme is identifying the best strategies to promote high vaccination rates. Three types of strategies have been studied: (1) patient-oriented interventions, such as patient reminder or recall, (2) provider interventions, and (3) system interventions, such as school laws. One of the most prominent intervention strategies, and perhaps best studied, involves patient reminder or recall systems. This is an update of a previously published review. OBJECTIVES: To evaluate and compare the effectiveness of various types of patient reminder and recall interventions to improve receipt of immunizations. SEARCH METHODS: We searched CENTRAL, MEDLINE, Embase and CINAHL to January 2017. We also searched grey literature and trial registers to January 2017. SELECTION CRITERIA: We included randomized trials, controlled before and after studies, and interrupted time series evaluating immunization-focused patient reminder or recall interventions in children, adolescents, and adults who receive immunizations in any setting. We included no intervention control groups, standard practice activities that did not include immunization patient reminder or recall, media-based activities aimed at promoting immunizations, or simple practice-based awareness campaigns. We included receipt of any immunizations as eligible outcome measures, excluding special travel immunizations. We excluded patients who were hospitalized for the duration of the study period. DATA COLLECTION AND ANALYSIS: We used the standard methodological procedures expected by Cochrane and the Cochrane Effective Practice and Organisation of Care (EPOC) Group. We present results for individual studies as relative rates using risk ratios, and risk differences for randomized trials, and as absolute changes in percentage points for controlled before-after studies. We present pooled results for randomized trials using the random-effects model. MAIN RESULTS: The 75 included studies involved child, adolescent, and adult participants in outpatient, community-based, primary care, and other settings in 10 countries.Patient reminder or recall interventions, including telephone and autodialer calls, letters, postcards, text messages, combination of mail or telephone, or a combination of patient reminder or recall with outreach, probably improve the proportion of participants who receive immunization (risk ratio (RR) of 1.28, 95% confidence interval (CI) 1.23 to 1.35; risk difference of 8%) based on moderate certainty evidence from 55 studies with 138,625 participants.Three types of single-method reminders improve receipt of immunizations based on high certainty evidence: the use of postcards (RR 1.18, 95% CI 1.08 to 1.30; eight studies; 27,734 participants), text messages (RR 1.29, 95% CI 1.15 to 1.44; six studies; 7772 participants), and autodialer (RR 1.17, 95% CI 1.03 to 1.32; five studies; 11,947 participants). Two types of single method reminders probably improve receipt of immunizations based on moderate certainty evidence: the use of telephone calls (RR 1.75, 95% CI 1.20 to 2.54; seven studies; 9120 participants) and letters to patients (RR 1.29, 95% CI 1.21 to 1.38; 27 studies; 81,100 participants).Based on high certainty evidence, reminders improve receipt of immunizations for childhood (RR 1.22, 95% CI 1.15 to 1.29; risk difference of 8%; 23 studies; 31,099 participants) and adolescent vaccinations (RR 1.29, 95% CI 1.17 to 1.42; risk difference of 7%; 10 studies; 30,868 participants). Reminders probably improve receipt of vaccinations for childhood influenza (RR 1.51, 95% CI 1.14 to 1.99; risk difference of 22%; five studies; 9265 participants) and adult influenza (RR 1.29, 95% CI 1.17 to 1.43; risk difference of 9%; 15 studies; 59,328 participants) based on moderate certainty evidence. They may improve receipt of vaccinations for adult pneumococcus, tetanus, hepatitis B, and other non-influenza vaccinations based on low certainty evidence although the confidence interval includes no effect of these interventions (RR 2.08, 95% CI 0.91 to 4.78; four studies; 8065 participants). AUTHORS' CONCLUSIONS: Patient reminder and recall systems, in primary care settings, are likely to be effective at improving the proportion of the target population who receive immunizations. PMID- 29342500 TI - Does Rheumatoid Arthritis Cause an Obesity Paradox? Comment on the Article by Sparks et al. PMID- 29342501 TI - Selective Activation of Tumor Necrosis Factor Receptor II Induces Antiinflammatory Responses and Alleviates Experimental Arthritis. AB - OBJECTIVE: Treg cells modulate immune responses and can suppress the development of autoimmune diseases. Tumor necrosis factor receptor II (TNFRII) has been recognized as a key receptor on these cells that facilitates expansion and stabilization of CD4+ Treg cells. The purpose of the present study was to investigate the therapeutic activity of a novel TNFRII agonist in experimental arthritis as well as the role of different Treg cell subsets. METHODS: A novel mouse TNFRII-selective fusion protein (EHD2-sc-mTNFR2 ) was generated by genetic engineering. Mouse T cells were incubated together with interleukin-2 and/or EHD2 sc-mTNFR2 , and the effects on Treg cells were analyzed by flow cytometry. Mice with collagen-induced arthritis (CIA) were treated with EHD2-sc-mTNFR2 or saline, and the therapeutic effects were monitored and characterized. RESULTS: Selective activation of TNFRII was found to expand both CD4+ and CD8+ Treg cells. Moreover, TNFRII activation elevated the number of CD4+CD25+ and CD8+CD25+ Treg cells and increased the number of FoxP3-expressing cells in CD8+, but not CD4+, Treg cells, indicating different mechanisms of TNFRII-induced expansion of diverse T cell subsets with suppressive activity. In the CIA model, we demonstrated that administration of the TNFRII agonist EHD2-sc-mTNFR2 led to the expansion of both CD4+ and CD8+ Treg cells in vivo and induced antiinflammatory responses that alleviated arthritis. CONCLUSION: Our findings support the use of TNFRII selective therapeutics as an effective approach to the treatment of arthritic disease and possibly other inflammatory and autoimmune diseases. PMID- 29342499 TI - Efficacy and Safety of Cyclophosphamide Treatment in Severe Juvenile Dermatomyositis Shown by Marginal Structural Modeling. AB - OBJECTIVE: In patients with severe or refractory juvenile dermatomyositis (DM), second-line treatments may be required. Cyclophosphamide (CYC) is used to treat some connective tissue diseases, but evidence of its efficacy in juvenile DM is limited. This study was undertaken to describe clinical improvement in juvenile DM patients treated with CYC and model the efficacy of CYC treatment compared to no CYC treatment. METHODS: Clinical data on skin, global, and muscle disease for patients recruited to the Juvenile DM Cohort and Biomarker Study were analyzed. Clinical improvement following CYC treatment was described using unadjusted analysis. Marginal structural models (MSMs) were used to model treatment efficacy and adjust for confounding by indication. RESULTS: Compared to the start of CYC treatment, there were reductions at 6, 12, and 24 months in skin disease (P = 1.3 * 10-10 ), global disease (P = 2.4 * 10-8 ), and muscle disease (P = 8.0 * 10-10 ) for 56 patients treated with CYC in unadjusted analysis. Limited evidence suggested a reduction in glucocorticoid dose (P = 0.047) in patients treated with CYC. MSM analysis showed reduced global disease and skin disease in patients who started an ~6-month course of CYC treatment >12 months ago compared to patients never or not yet treated with CYC. In the treated patients, the modified skin Disease Activity Score for juvenile DM was 1.19 units lower (P = 0.0085) and the physician's global assessment was 0.66 units lower (P = 0.027). Minor adverse events were reported in 3 patients within 1 year of stopping CYC. CONCLUSION: Our findings indicate that CYC is efficacious with no short-term side effects. Improvements in skin, global, and muscle disease were observed. Further studies are required to evaluate longer-term side effects. PMID- 29342502 TI - Antiphospholipid Antibodies Inhibit Trophoblast Toll-Like Receptor and Inflammasome Negative Regulators. AB - OBJECTIVE: Women with antiphospholipid antibodies (aPL) are at risk for pregnancy complications associated with poor placentation and placental inflammation. Although these antibodies are heterogeneous, some anti-beta2 -glycoprotein I (anti-beta2 GPI) antibodies can activate Toll-like receptor 4 (TLR-4) and NLRP3 in human first-trimester trophoblasts. The objective of this study was to determine the role of negative regulators of TLR and inflammasome function in aPL induced trophoblast inflammation. METHODS: Human trophoblasts were not treated or were treated with anti-beta2 GPI aPL or control IgG in the presence or absence of the common TAM (TYRO3, AXL, and Mer tyrosine kinase [MERTK]) receptor ligand growth arrest-specific protein 6 (GAS6) or the autophagy-inducer rapamycin. The expression and function of the TAM receptor pathway and autophagy were measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR), Western blotting, and enzyme-linked immunosorbent assay (ELISA). Antiphospholipid antibody-induced trophoblast inflammation was measured by qRT-PCR, activity assays, and ELISA. RESULTS: Anti-beta2 GPI aPL inhibited trophoblast TAM receptor function by reducing cellular expression of the receptor tyrosine kinases AXL and MERTK and the ligand GAS6. The addition of GAS6 blocked the effects of aPL on the TLR-4-mediated interleukin-8 (IL-8) response. However, the NLRP3 inflammasome mediated IL-1beta response was not affected by GAS6, suggesting that another regulatory pathway was involved. Indeed, anti-beta2 GPI aPL inhibited basal trophoblast autophagy, and reversing this with rapamycin inhibited aPL-induced inflammasome function and IL-1beta secretion. CONCLUSION: Basal TAM receptor function and autophagy may serve to inhibit trophoblast TLR and inflammasome function, respectively. Impairment of TAM receptor signaling and autophagy by anti-beta2 GPI aPL may allow subsequent TLR and inflammasome activity, leading to a robust inflammatory response. PMID- 29342503 TI - Molecular Basis for Dysregulated Activation of NKX2-5 in the Vascular Remodeling of Systemic Sclerosis. AB - OBJECTIVE: NKX2-5 is a homeobox transcription factor that is required for the formation of the heart and vessels during development, with significant postnatal down-regulation and reactivation in disease states, characterized by vascular remodeling. The purpose of this study was to investigate mechanisms that activate NKX2-5 expression in diseased vessels, such as systemic sclerosis (scleroderma; SSc)-associated pulmonary hypertension (PH), and to identify genetic variability that potentially underlies susceptibility to specific vascular complications. METHODS: We explored NKX2-5 expression in biopsy samples from patients with SSc associated PH and in pulmonary artery smooth muscle cells (PASMCs) from patients with scleroderma. Disease-associated putative functional single-nucleotide polymorphisms (SNPs) at the NKX2-5 locus were cloned and studied in reporter gene assays. SNP function was further examined through protein-DNA binding assays, chromatin immunoprecipitation assays, and RNA silencing analyses. RESULTS: Increased NKX2-5 expression in biopsy samples from patients with SSc-associated PH was localized to remodeled vessels and PASMCs. Meta-analysis of 2 independent scleroderma cohorts revealed an association of rs3131917 with scleroderma (P = 0.029). We demonstrated that disease-associated SNPs are located in a novel functional enhancer, which increases NKX2-5 transcriptional activity through the binding of GATA-6, c-Jun, and myocyte-specific enhancer factor 2C. We also characterized an activator/coactivator transcription-enhancer factor domain 1 (TEAD1)/Yes-associated protein 1 (YAP1) complex, which was bound at rs3095870, another functional SNP, with TEAD1 binding the risk allele and activating the transcription of NKX2-5. CONCLUSION: NKX2-5 is genetically associated with scleroderma, pulmonary hypertension, and fibrosis. Functional evidence revealed a regulatory mechanism that results in NKX2-5 transcriptional activation in PASMCs through the interaction of an upstream promoter and a novel downstream enhancer. This mechanism can act as a model for NKX2-5 activation in cardiovascular disease characterized by vascular remodeling. PMID- 29342504 TI - Polyarthralgias and Papulonodules in a 56-Year-Old Woman. PMID- 29342505 TI - Reply. PMID- 29342506 TI - Effects of a Dietary Approach to Stop Hypertension (DASH) Diet Intervention on Serum Uric Acid in African Americans With Hypertension. AB - OBJECTIVE: To examine whether partial replacement of a diet typical of the average American diet with Dietary Approaches to Stop Hypertension (DASH)-related foods in the home environment lowers the serum uric acid (UA) level in individuals with hypertension. METHODS: We conducted an ancillary study of a randomized trial of African American adults with controlled hypertension from an urban clinic. Participants were assigned to either a control group or an intervention (DASH-Plus) group. DASH-Plus participants received coach-directed dietary advice, assistance with purchasing DASH-related foods ($30/week), and home delivery of food via a community supermarket. Participants in the control group received a DASH diet brochure and a debit card account ($30/week) to purchase foods. Serum UA levels were measured at baseline and after 8 weeks. RESULTS: Of the original 123 randomized participants, 117 had available serum UA measurements. Seventy percent of the participants were women, the mean +/- SD age was 59 +/- 9.5 years, and the mean +/- SD serum UA level was 6.4 +/- 1.7 mg/dl. The DASH-Plus diet did not reduce serum UA levels compared with the control diet (difference in difference -0.01 mg/dl [95% confidence interval -0.39, 0.38]). However, there was a significant trend toward a greater reduction in the serum UA level in participants with higher baseline serum UA levels (P for trend = 0.008). Baseline changes in the serum UA level were inversely associated with changes in systolic blood pressure (P = 0.002), diastolic blood pressure (P = 0.001), and urinary sodium excretion (P = 0.05). CONCLUSION: Overall, in African American individuals, partial replacement of a typical diet with DASH foods did not lower serum UA levels compared with a control diet. However, there was a significant trend toward a greater reduction in serum UA levels in subjects with higher baseline serum UA levels. Furthermore, changes in serum UA levels were associated with known correlates, suggesting heterogeneity of effects in the treatment and control arms. Future pragmatic studies of consumption of the DASH diet to lower serum UA levels should optimize replacement strategies and enroll individuals with hyperuricemia or gout. PMID- 29342508 TI - Features, Treatment, and Outcomes of Macrophage Activation Syndrome in Childhood Onset Systemic Lupus Erythematosus. AB - OBJECTIVE: To describe the features and treatment of macrophage activation syndrome (MAS) in a single-center cohort of patients with childhood-onset systemic lupus erythematosus (SLE), and to compare childhood-onset SLE manifestations and outcomes between those with and those without MAS. METHODS: We included all patients with childhood-onset SLE followed up at The Hospital for Sick Children from 2002 to 2012, and identified those also diagnosed as having MAS. Demographic, clinical, and laboratory features of MAS and SLE, medication use, hospital and pediatric intensive care unit (PICU) admissions, as well as damage indices and mortality data were extracted from the Lupus database. Student's t-tests and Fisher's exact tests were used to compare continuous and categorical variables, respectively. We calculated incidence rate ratios of hospital and PICU admissions comparing patients with and those without MAS, using Poisson models. Kaplan-Meier survival analysis was used to examine the time to disease damage accrual. RESULTS: Of the 403 patients with childhood-onset SLE, 38 (9%) had MAS. The majority (68%) had concomitant MAS and SLE diagnoses. Fever was the most common MAS clinical feature. The frequency of renal and central nervous system disease, hospital admissions, the average daily dose of steroids, and time to disease damage were similar between those with and those without MAS. We observed a higher mortality rate among those with MAS (5%) than those without MAS (0.2%) (P = 0.02). CONCLUSION: MAS was most likely to develop concomitantly with childhood-onset SLE diagnosis. The majority of the MAS patients were successfully treated with corticosteroids with no MAS relapses. Although the numbers were small, there was a higher risk of death associated with MAS compared to SLE without MAS. PMID- 29342507 TI - The Role of Autophagy in the Degradation of Misfolded HLA-B27 Heavy Chains. AB - OBJECTIVE: To determine whether autophagy is involved in the degradation of misfolded HLA-B27 in experimental spondyloarthritis. METHODS: Bone marrow-derived macrophages from HLA-B27/human beta2 -microglobulin (hbeta2 m)-transgenic rats were incubated in the presence or absence of interferon-gamma and proteasome or autophagy inhibitors. Immunoprecipitation, immunoblotting, and immunofluorescence analysis were used to measure HLA-B27 heavy chains and autophagy. Autophagy was induced using rapamycin. Macrophages from HLA-B7/hbeta2 m-transgenic and wild type rats were used as controls. RESULTS: HLA-B27-expressing macrophages showed phosphatidylethanolamine-conjugated microtubule-associated protein 1 light chain 3B levels similar to those in both control groups, before and after manipulation of autophagy. Blocking autophagic flux with bafilomycin resulted in the accumulation of misfolded HLA-B27 dimers and oligomers as well as monomers, which was comparable with the results of blocking endoplasmic reticulum-associated degradation (ERAD) with the proteasome inhibitor bortezomib. HLA-B7 monomers also accumulated after blocking each degradation pathway. The ubiquitin-to-heavy chain ratio was 2-3-fold lower for HLA-B27 than for HLA-B7. Activation of autophagy with rapamycin rapidly eliminated ~50% of misfolded HLA-B27, while folded HLA-B27 or HLA-B7 monomeric heavy chains were minimally affected. CONCLUSION: This study is the first to demonstrate that both autophagy and ERAD play roles in the elimination of excess HLA class I heavy chains expressed in transgenic rats. We observed no evidence that HLA-B27 expression modulated the autophagy pathway. Our results suggest that impaired ubiquitination of HLA-B27 may play a role in the accumulation of misfolded disulfide-linked dimers, the elimination of which can be enhanced by activation of autophagy. Manipulation of the autophagy pathway should be further investigated as a potential therapeutic target in spondyloarthritis. PMID- 29342509 TI - Influence of Explanatory Images on Risk Perceptions and Treatment Preference. AB - OBJECTIVE: The aim of this study was to examine whether providing patients with a series of balance scales (BS), depicting a reciprocal relationship between achieving disease control and increasing the risk of infection, influences treatment preference. METHODS: Participants were randomized to receive a description of a medication in which risk of infection was relayed using 1 of 4 formats, including numbers only, numbers + icon array (IA), numbers + BS, or numbers + IA + BS (i.e., combination). We compared the likelihood of starting the medication across the 4 formats, and evaluated whether the influence of risk formats varied by numeracy and gist risk appraisals. RESULTS: The mean +/- SE likelihood of starting the medication was higher among participants randomized to the combination format (3.85 +/- 0.09) compared to those who viewed the BS (3.56 +/- 0.09; P = 0.0222) or numbers-only formats (3.51 +/- 0.09; P = 0.0069). Viewing an IA alone was associated with a lower likelihood of starting the medication among participants lower in numeracy and endorsing a risk-avoidant noncompensatory gist risk appraisal. Conversely, viewing an IA (with or without the BS) was associated with a greater likelihood of starting the medication among patients with higher numeracy and compensatory risk appraisals. CONCLUSION: Adding explanatory images to IAs increases patient likelihood to take a medication in those with low numeracy and a noncompensatory gist risk appraisal. Explanatory images may be a feasible approach to improve willingness to try medication among subjects who are especially risk averse and believe that any risk is unacceptable. PMID- 29342511 TI - Sign, language, and gesture in the brain: Some comments. AB - In contrast with two widely held and contradictory views - that sign languages of deaf people are "just gestures," or that sign languages are "just like spoken languages" - the view from sign linguistics and developmental research in cognition presented by Goldin-Meadow & Brentari (G-M&B) indicates a more complex picture. We propose that neuroscience research suggests that a similar approach needs to be taken and offer some examples from research on the brain bases of sign language perception. PMID- 29342512 TI - Building a single proposition from imagistic and categorical components. AB - Bimodal bilingual language provides further evidence for the viewpoint advocated by Goldin-Meadow & Brentari (G-M&B) that sign, speech, and gesture work together to create a single proposition, illustrating the potential in each set of articulators for both imagistic and categorical components. Recent advances in formal semantics provide a framework for incorporating both imagistic and categorical components into a single compositional system. PMID- 29342510 TI - Validation of the Social Appearance Anxiety Scale in Patients With Systemic Sclerosis: A Scleroderma Patient-Centered Intervention Network Cohort Study. AB - OBJECTIVE: Systemic sclerosis (SSc) is an autoimmune disease that can cause disfiguring changes in appearance. This study examined the structural validity, internal consistency reliability, convergent validity, and measurement equivalence of the Social Appearance Anxiety Scale (SAAS) across SSc disease subtypes. METHODS: Patients enrolled in the Scleroderma Patient-centered Intervention Network Cohort completed the SAAS and measures of appearance-related concerns and psychological distress. Confirmatory factor analysis (CFA) was used to examine the structural validity of the SAAS. Multiple-group CFA was used to determine whether SAAS scores can be compared across patients with limited and diffuse disease subtypes. Cronbach's alpha was used to examine internal consistency reliability. Correlations of SAAS scores with measures of body image dissatisfaction, fear of negative evaluation, social anxiety, and depression were used to examine convergent validity. SAAS scores were hypothesized to be positively associated with all convergent validity measures, with correlations significant and moderate to large in size. RESULTS: A total of 938 patients with SSc were included. CFA supported a 1-factor structure (Comparative Fit Index 0.92, Standardized Root Mean Residual 0.04, and Root Mean Square Error of Approximation 0.08), and multiple-group CFA indicated that the scalar invariance model best fit the data. Internal consistency reliability was good in the total sample (alpha = 0.96) and in disease subgroups. Overall, evidence of convergent validity was found with measures of body image dissatisfaction, fear of negative evaluation, social anxiety, and depression. CONCLUSION: The SAAS can be reliably and validly used to assess fear of appearance evaluation in patients with SSc, and SAAS scores can be meaningfully compared across disease subtypes. PMID- 29342513 TI - Is it language (yet)? The allure of the gesture-language binary. AB - Goldin-Meadow & Brentari (G-M&B) challenge the traditional separation between gestural and categorical language by modality, but they retain a binary distinction. However, multiple dimensions, particularly discreteness and combinatoriality, better carve up the range of linguistic and nonlinguistic human communication. Investigating transformation over time along these dimensions will reveal how the nature of language reflects human minds, rather than the world to which language refers. PMID- 29342514 TI - Perspectives on gesture from autism spectrum disorder: Alterations in timing and function. AB - The target article highlights the utility of new technology to study sign language and gesture. Research in special populations - specifically, individuals with autism spectrum disorder, ASD - may further illuminate sign/gesture similarities and differences and lead to a deeper understanding of the mechanisms of growth and change. Even verbally fluent speakers with ASD display distinctive qualities in sign and gesture. PMID- 29342515 TI - Emoticons in text may function like gestures in spoken or signed communication. AB - We draw parallels between emoticons in textual communication and gesture in signed language with respect to the interdependence of codes by describing two contexts under which the behavior of emoticons in textual communication resembles that of gesture in speech. Generalizing from those findings, we propose that gesture is likely characterized by a nuanced interdependence with language whether signed, spoken or texted. PMID- 29342516 TI - How to distinguish gesture from sign: New technology is not the answer. AB - Linguistic and psycholinguistic tests will be more useful than motion capture technology in calibrating the borders between sign and gesture. The analogy between motion capture (mocap) technology and the spectrograph is flawed because only vocal articulators are hidden. Although information about gradience and variability will be obtained, the technology provides less information about linguistic constraints and categories. Better models are needed to account for differences between co-speech and co-sign gesture (e.g., different degrees of optionality, existence of beat gestures). PMID- 29342517 TI - Why space is not one-dimensional: Location may be categorical and imagistic. AB - In our commentary, we raise concerns with the idea that location should be considered a gestural component of sign languages. We argue that psycholinguistic studies provide evidence for location as a "categorical" element of signs. More generally, we propose that the use of space in sign languages comes in many flavours and may be both categorical and imagistic. In their target article, Goldin-Meadow & Brentari (G-M&B) discuss several observations suggesting that the use of space is imagistic and may not form part of the categorical properties of sign languages. Specifically, they point out that (1) the number of locations toward which agreeing verbs can be directed is not part of a discrete set, (2) event descriptions by users of different sign languages and hearing nonsigners exhibit marked similarities in the use of space, and (3) location as a phonological parameter is not categorically perceived by native signers. It should be noted that G-M&B acknowledge that categorical properties of location and movement may simply not have been captured yet because the proper investigative tools are not yet readily available. PMID- 29342518 TI - Understanding gesture in sign and speech: Perspectives from theory of mind, bilingualism, and acting. AB - In their article, Goldin-Meadow & Brentari (G-M&B) assert that researchers must differentiate between sign/speech and gesture. We propose that this distinction may be useful if situated within a two-systems approach to theory of mind (ToM) and discuss how drawing upon perspectives from bilingualism and acting can help us understand the role of gesture in spoken/sign language. PMID- 29342519 TI - Languages as semiotically heterogenous systems. AB - The target article is consistent with seeing languages as semiotically heterogenous, using categorial, depictive, and analogic semiotic signs. "Gesture," used in the target article, is shown to be vague and not useful. Kendon's view, criticised in the target, is restated. His proposal for comparative semiotic analyses of how visible bodily action is used in utterance production is reexplained. PMID- 29342520 TI - Current and future methodologies for quantitative analysis of information transfer in sign language and gesture data. AB - State-of-the-art methods of analysis of video data now include motion capture and optical flow from video recordings. These techniques allow for biological differentiation between visual communication and noncommunicative motion, enabling further inquiry into neural bases of communication. The requirements for additional noninvasive methods of data collection and automatic analysis of natural gesture and sign language are discussed. PMID- 29342521 TI - An evolutionary approach to sign language emergence: From state to process. AB - Understanding the relationship between gesture, sign, and speech offers a valuable tool for investigating how language emerges from a nonlinguistic state. We propose that the focus on linguistic status is problematic, and a shift to focus on the processes that shape these systems serves to explain the relationship between them and contributes to the central question of how language evolves. PMID- 29342522 TI - Language readiness and learning among deaf children. AB - We applaud Goldin-Meadow & Brentari's (G-M&B's) significant efforts to consider the linkages between sign, gesture, and language. Research on deaf children and sign language acquisition can broaden the G-M&B approach by considering how language readiness is also a social phenomenon and that distinctions between imagistic and categorical formats rely on language practices and contexts. PMID- 29342523 TI - Same or different: Common pathways of behavioral biomarkers in infants and children with neurodevelopmental disorders? AB - The extent to which early motor patterns represent antecedents to later communicative functions, and the emergence of gesture and/or sign as potential communicative acts in neurodevelopmental disorders (NDDs), are research questions that have received recent attention. It is important to keep in mind that different NDDs have different neurological underpinnings, with correspondingly different implications for their conceptualization, detection, and treatment. PMID- 29342524 TI - Are gesture and speech mismatches produced by an integrated gesture-speech system? A more dynamically embodied perspective is needed for understanding gesture-related learning. AB - We observe a tension in the target article as it stresses an integrated gesture speech system that can nevertheless consist of contradictory representational states, which are reflected by mismatches in gesture and speech or sign. Beyond problems of coherence, this prevents furthering our understanding of gesture related learning. As a possible antidote, we invite a more dynamically embodied perspective to the stage. PMID- 29342525 TI - Toward true integration. AB - Whether in sign or speech, language is more integrative than the target article suggests. A more integrative view embraces not only sign/speech and co sign/speech gesture, but also indicative gestures irrespective of modality, and locations along with movements in the signed modality, as suggested by both linguistic acquisition and pathologies. An extended integrative view also proves advantageous in terms of conceptual coherence. PMID- 29342526 TI - Vocal laughter punctuates speech and manual signing: Novel evidence for similar linguistic and neurological mechanisms. AB - Vocal laughter fills conversations between speakers with normal hearing and between deaf users of American Sign Language, but laughter rarely intrudes on the phrase structure of spoken or signed conversation, being akin to punctuation in written text. This punctuation effect indicates that language, whether vocal or signed, is dominant over laughter, and that speech and manual signing involve similar mechanisms. PMID- 29342527 TI - Iconic enrichments: Signs vs. gestures. AB - Semantic work on sign language iconicity suggests, as do Goldin-Meadow & Brentari (G-M&B) in their target article, that "sign should be compared with speech-plus gesture, not speech alone" (sect. 7.1). One key question is whether speech-plus gesture and sign-with-iconicity really display the same expressive resources. This need not be the case, because gestural enrichments are typically not at issue, whereas iconic enrichments in sign language can often be at-issue. Future research should thus focus on the "projection" properties of different sorts of iconic enrichment in both modalities. PMID- 29342528 TI - Gestures can create diagrams (that are neither imagistic nor analog). AB - The claim that gesture is primarily imagistic, analog, and holistic is challenged by the presence of abstract diagrammatic gestures, here points and lines, that represent point-like and line-like concepts and are integrated into larger constituents. PMID- 29342529 TI - Gesture and language: Distinct subsystem of an integrated whole. AB - The commentaries have led us to entertain expansions of our paradigm to include new theoretical questions, new criteria for what counts as a gesture, and new data and populations to study. The expansions further reinforce the approach we took in the target article: namely, that linguistic and gestural components are two distinct yet integral sides of communication, which need to be studied together. PMID- 29342530 TI - Pros and cons of blurring gesture-language lines: An evolutionary linguistic perspective. AB - The target article's emphasis on distinguishing sign from gesture may resolve one important objection to gesture-first theories of language evolution. However, this approach risks undervaluing the gradual progression from nonlanguage to language over hominin evolution, and in emerging sign systems today. I call for less emphasis on drawing boundaries and more emphasis on understanding the processes of change. PMID- 29342531 TI - Good things come in threes: Communicative acts comprise linguistic, imagistic, and modifying components. AB - Gesture and sign form an integrated communication system, as do gesture and speech. Communicative acts in both systems combine categorical linguistic (words or signs) with imagistic (gestures) components. Additionally, both sign and speech can employ modifying components that convey iconic information tied to a linguistic base morpheme. An accurate analysis of communicative acts must take this third category into account. PMID- 29342532 TI - The influence of communication mode on written language processing and beyond. AB - Empirical evidence suggests a broad impact of communication mode on cognition at large, beyond language processing. Using a sign language since infancy might shape the representation of words and other linguistic stimuli - for example, incorporating in it the movements and signs used to express them. Once integrated into linguistic representations, this visuo-motor content can affect deaf signers' linguistic and cognitive processing. PMID- 29342533 TI - Where does (sign) language begin? AB - Goldin-Meadow & Brentari (G-M&B) outline several criteria for delineating the boundaries between (discrete) signs and (continuous) gestures. However, the complex links between linguistics forms and their phonetic realizations defy such heuristics. A systematic exploration of language structure by mouth and by hand may help get us closer to answering the important challenge outlined in this target article. PMID- 29342534 TI - The physiognomic unity of sign, word, and gesture. AB - Goldin-Meadow & Brentari (G-M&B) are implicitly going against the dominant paradigm in language research, namely, the "speech as written language" metaphor that portrays vocal sounds and bodily signs as means of delivering stable word meanings. We argue that Heinz Werner's classical research on the physiognomic properties of language supports and complements their view of sign and gesture as a unified system. PMID- 29342535 TI - What is a gesture? A lesson from comparative gesture research. AB - Research into nonhuman primates' gestures is often limited by the lack of clear criteria to define a gesture and by studying gestures separately from other communicative means. Despite the fundamental differences between the gestural communication of humans and other primates, I argue that sign language research might benefit from the lessons learned from these drawbacks and the current developments in primate communication research. PMID- 29342536 TI - Why would the discovery of gestures produced by signers jeopardize the experimental finding of gesture-speech mismatch? AB - Mismatch occurs when there is a discrepancy between produced gestures and co occurring speech. In this commentary, I explore why research on mismatch might be called into question by changing views of what constitutes a gesture. I argue that the experimental procedure for producing mismatch, through its coding methods, is blind to the tight temporal coordination of gesture and affiliated talk. PMID- 29342537 TI - The categorical role of structurally iconic signs. AB - Goldin-Meadow & Brentari (G-M&B) argue that, for sign language users, gesture - in contrast to linguistic sign - is iconic, highly variable, and similar to spoken language co-speech gesture. We discuss two examples (telicity and absolute gradable adjectives) that challenge the use of these criteria for distinguishing sign from gesture. PMID- 29342538 TI - Gesture or sign? A categorization problem. AB - Goldin-Meadow & Brentari (G-M&B) rely on a formalist approach to language, leading them to seek objective criteria by which to distinguish language and gesture. This results in the assumption that gradient aspects of signs are gesture. Usage-based theories challenge this view, maintaining that all linguistic units exhibit gradience. Instead, we propose that the distinction between language and gesture is a categorization problem. PMID- 29342539 TI - Pragmatic prospection emphasizes utility of predicting rather than mere predictability. AB - Contrary to one assumption of CLASH, we suggest that colder rather than warm climates are the harsh, unpredictable ones, thus requiring greater self-control. We propose shifting emphasis from predictability to utility of prediction. Northern climates may be less predictable than tropical ones, making predictions and planning far more important, insofar as they can prevent fatalities and promote other pragmatic benefits. PMID- 29342540 TI - A climate of confusion. AB - I identify two confusions and omissions in the target article. Confusion arises from failure to distinguish between a genetically transmitted adaptation and a conditional response to the environment, and from the elision of individual and societal adaptations. Despite points of similarity, there is no mention of Rushton's controversial theory of the climatic basis of race differences in violent crime. Sex differences are also ignored. PMID- 29342541 TI - The CLASH model lacks evolutionary and archeological support. AB - Data from archaeology and paleoanthropology directly challenge the validity of the basic assumptions of the CLASH model. By not incorporating a "deep time" perspective, the hypothesis lacks the evolutionary baseline the authors seek to infer in validating the model. PMID- 29342542 TI - Dimensions of environmental risk are unique theoretical constructs. AB - Life history theory serves as the foundation for the CLimate, Aggression, and Self-control in Humans (CLASH) model of aggression. However, this model embodies several misunderstandings of life history constructs and principles. The CLASH model does not recognize that environmental harshness and environmental unpredictability are unique theoretical constructs, rendering predictions and implications from the model suspect. PMID- 29342543 TI - Using foresight to prioritise the present. AB - Planning for the future may encourage apparently "impulsive" behaviour when the future is anticipated to be bleak. Thus, a seeming failure of self-control in reactive violence could be caused not by a disinclination to plan ahead, but by virtue of this ability. Furthermore, we point to empirical and theoretical shortcomings in the authors' case, such as a failure to distinguish proximate and ultimate explanations. PMID- 29342544 TI - CLASH's life history foundations. AB - We recommend extending CLASH by incorporating two evolutionary accounts of the shift toward fast life histories under harsh, unpredictable conditions. These accounts, if integrated with CLASH, make different predictions about the distributions of aggression and violence within and between societies. We discuss these predictions and propose ways of testing them. PMID- 29342545 TI - Does distance from the equator predict self-control? Lessons from the Human Penguin Project. AB - We comment on the proposition "that lower temperatures and especially greater seasonal variation in temperature call for individuals and societies to adopt ... a greater degree of self-control" (Van Lange et al., sect. 3, para. 4) for which we cannot find empirical support in a large data set with data-driven analyses. After providing greater nuance in our theoretical review, we suggest that Van Lange et al. revisit their model with an eye toward the social determinants of self-control. PMID- 29342546 TI - More than just climate: Income inequality and sex ratio are better predictors of cross-cultural variations in aggression. AB - Van Lange et al. argue that variations in climate explain cross-societal variations in violence. We suggest that any approach seeking to understand cross cultural variation in human behavior via an ecological framework must consider a wider array of ecological variables, and we find that income inequality and sex ratio are better predictors than climate of cross-societal variations in violence. PMID- 29342547 TI - Climate is not a good candidate to account for variations in aggression and violence across space and time. AB - We agree with Van Lange et al. that climate is likely to affect individuals' social behavior in many ways. However, we suspect that its impact on physiology and psychology is so remote that its predictive power disintegrates almost completely through the causal chain underlying aggression and violence. PMID- 29342548 TI - Postcolonial geography confounds latitudinal trends in observed aggression and violence. AB - To support their hypothesis, the authors point to an inverse correlation between latitude and the incidence of civil conflict and crime. This observation cannot be accepted as evidence for the hypothesis, because of a weighty confounding variable: the historical geography of colonialism and its effects on the fragility of nations. PMID- 29342549 TI - The role of adolescence in geographic variation in violent aggression. AB - In explaining variation in violent aggression across populations, the age structures of those populations must be considered. Adolescents between the ages of 15 and 25 are disproportionately responsible for violent aggression in every society, and increases in violence tend to follow population "youth bulges." Large numbers of adolescents in equatorial regions may account for observed relationships between geography and violence. PMID- 29342550 TI - The paradoxical effect of climate on time perspective considering resource accumulation. AB - Considering purely climate, southern countries are less harsh and more predictable than northern countries. From a historical perspective, freezing winters resulting in fewer available resources contribute to the development of strong future orientation. The paradox is that future orientation contributes to accumulation of resources in the long run, making individuals' immediate living conditions less harsh, leading to slower life strategies. PMID- 29342551 TI - The CLASH model in broader life history context. AB - In this commentary, we address two questions: (1) Is the drive in many young men to gain status and amass resources, which frequently entails direct competition with members of outgroups, one of the key variables underlying the CLASH model? (2) Why is there so much variation in reactive aggression/violence between people living in the same environment? PMID- 29342552 TI - An alternative interpretation of climate data: Intelligence. AB - The CLASH model proposed in the target article is plausible but less than parsimonious. I suggest that statistical analysis probably would find slower life history strategy, greater focus on the future, and greater self-control to be highly correlated and perhaps unifactorial, because they are all manifestations of a single underlying variable, namely, intelligence. I suggest how intelligence as a state variable plausibly could explain the differences observed by the authors. PMID- 29342553 TI - Sociocultural discourse in science: Flawed assumptions and bias in the CLASH model. AB - In this commentary, we contest Van Lange and colleagues' central claim that "countries closer to the equator are generally more violent." We point to the lack of credible empirical evidence for this assertion and suggest that the CLASH model uses the language of science to lend false credibility to a problematic sociocultural discourse. PMID- 29342554 TI - Bullying when it's hot? The CLASH model and climatic influences on bullying. AB - A novel predictor of bullying may be underlying regional weather conditions (i.e., climate). Bullying data support the CLASH model of aggression by suggesting that climate may moderate the forms and severity of bullying, as well as predict its prevalence across countries. Furthermore, bullying data also suggest that the CLASH model may apply to forms of aggression beyond reactive aggression. PMID- 29342555 TI - Hell on earth? Equatorial peaks of heat, poverty, and aggression. AB - Van Lange et al.'s global CLASH model overemphasizes climatic origins and underemphasizes economic origins of aggression. Our 167-country analysis of latitudinal gradients of heat, poverty, and aggression finds that heat-induced aggression is mediated by poverty and that heat tempers rather than fuels poverty induced aggression. More importantly, the CLASH model hints at latitudinal, equatorial, and hemispheric upgradings of climato-economic modeling of human behavior. PMID- 29342556 TI - Culture matters for life history trade-offs. AB - Van Lange et al. add important life history perspectives to understanding violence. However, direct links between climate and violence are unlikely because cultural institutions modify human responses. Examples are given from the Bushmen of the Kalahari and Enga of Papua New Guinea. The correlations identified may occur because many countries closer to the equator are caught in the gap between the demise of traditional cultural institutions and the rise of modern forms of governance. PMID- 29342557 TI - Reply to Van Lange et al.: Proximate and ultimate distinctions must be made to the CLASH model. AB - Transcending reviewed proximate theories, Van Lange et al.'s CLASH model attempts to ultimately explain the poleward declension of aggression and violence. Seasonal cold is causal, but, we contend, principally as an ecologically relevant evolutionary pressure. We further argue that futurity and restraint are life history variables, and that Life History Theory evolutionarily explains the biogeography of aggression and violence as strategic adaptation. PMID- 29342558 TI - Where the psychological adaptations hit the ecological road. AB - We argue that the target authors focus too much on adaptive behavioral responses and not enough on actual psychological adaptations. We suggest the Dark Triad traits may represent facultative, psychological adaptations sensitive to seasonal variance and food shortages. We document that shorter distances from the equator are linked to higher national narcissism levels, whereas longer distances are associated with higher national-level machiavellianism. Dark Triad traits may serve as critical survival mechanisms when prioritizing oneself over and/or at the cost of others. PMID- 29342559 TI - Stuck in the heat or stuck in the hierarchy? Power relations explain regional variations in violence. AB - We contend that an ecological account of violence and aggression requires consideration of societal and cultural settings. Focusing on hierarchical relations, we argue countries with higher (vs. lower) power distance are, on average, located closer to the equator, have more challenging climates (e.g., higher temperature; lower temperature variation), and have a greater prevalence of violence and aggression (e.g., higher homicide rates). PMID- 29342560 TI - Why the CLASH model is an unconvincing evolutionary theory of crime. AB - The CLASH model is not convincing for two reasons. First, it ignores prior research proposing very similar ideas in a more compelling fashion. Second, it dismisses the role of genetic factors in shaping criminal propensities across population groups, opting for a facultative view of life history evolution that does not seem to square with current evidence. PMID- 29342561 TI - The importance of being explicit. AB - Van Lange et al. propose that climate affects violence via its effects on life history. That much is reasonable (and not novel), but their theory lacks causal specificity. Their foundational claim of an association between heat and violence is not well documented, and several findings that the authors themselves cite seem inconsistent with their model, rather than supportive. PMID- 29342562 TI - Warm coffee, sunny days, and prosocial behavior. AB - This commentary discusses the research finding that warmer temperatures are associated with more prosocial outcomes. It calls for future research and theory on climate-related variables and social behavior to allow for both positive and negative emotional and behavioral responses to warmer temperatures. PMID- 29342563 TI - Russian data refute the CLASH model. AB - We examined the CLASH model using the data on climate and violence from the Russian Federation. The Russian Federation is a huge country with dramatic climatic differences between regions. Our results are absolutely inconsistent with the model. We consider there are a range of climates in which the human organism functions optimally. Deviations from the range cause impulsiveness and aggression. PMID- 29342564 TI - The role of climate in human aggression and violence: Towards a broader conception. AB - The psychological processes that predict aggressive behaviour are also typically associated with violent self-harm (e.g., poor self-control). Yet, although human violence (towards others) appears to increase with proximity to the equator, suicide rates tend to decrease. In the light of this empirical puzzle, I argue that Van Lange et al.'s CLASH model would benefit from a broader conceptualization of human aggression. PMID- 29342565 TI - The Logic of Climate and Culture: Evolutionary and Psychological Aspects of CLASH. AB - A total of 80 authors working in a variety of scientific disciplines commented on the theoretical model of CLimate, Aggression, and Self-control in Humans (CLASH). The commentaries cover a wide range of issues, including the logic and assumptions of CLASH, the evidence in support of CLASH, and other possible causes of aggression and violence (e.g., wealth, income inequality, political circumstances, historic circumstances, pathogen stress). Some commentaries also provide data relevant to CLASH. Here we clarify the logic and assumptions of CLASH and discusses its extensions and boundary conditions. We also offer suggestions for future research. Regardless of whether none, some, or all of CLASH is found to be true, we hope it will stimulate future research on the link between climate and human behavior. Climate is one of the most presing issues of our time. PMID- 29342566 TI - Aggression, predictability of the environment, and self-regulation: Reconciliation with animal research. AB - Apparently inconsistent with the CLASH model, animal research relates predictable environments to rigid routine behaviors and aggression. However, our work on evolutionary and neural adaptations to (un)predictable environments may be able to reconcile the CLASH model with the animal research, but also suggests complexities beyond the dichotomous approach of CLASH. PMID- 29342567 TI - Inconsistent with the data: Support for the CLASH model depends on the wrong kind of latitude. AB - We argue that the CLASH model makes a number of questionable assumptions about the harshness and unpredictability of low-latitude environments, calling into question the life history strategy approach used, and that it is inconsistent with more nuanced global patterns of violence. We suggest an alternative account for less violence at high latitudes, based on a greater need for cooperation. PMID- 29342568 TI - Mapping multiple drivers of human obesity. AB - The insurance hypothesis is a reasonable explanation for the current obesity epidemic. One alternative explanation is that the marketing of high-sugar foods, especially sugar-sweetened beverages, drives the rise in obesity. Another prominent hypothesis is that obesity spreads through social influence. We offer a framework for estimating the extent to which these different models explain the rise in obesity. PMID- 29342569 TI - Eating and body image: Does food insecurity make us feel thinner? AB - Body image distortions are common in healthy individuals and a central aspect of serious clinical conditions, such as eating disorders. This commentary explores the potential implications of body image and its distortions for the insurance hypothesis. In particular, we speculate that body image may be an intervening variable mediating the relationship between perceived food scarcity and eating behavior. PMID- 29342570 TI - Expanding the insurance hypothesis of obesity with physiological cues. AB - Food insecurity relates to fat storage, but cannot explain fat storage in excess of levels optimal for buffering - that is, obesity. However, factors related to food unpredictability in the past, including stress, disease, micronutrient content of food, and physical activity, may cue physiological processes that change intake or fat deposition even in the absence of actual food unpredictability. PMID- 29342571 TI - Epidemiological foundations for the insurance hypothesis: Methodological considerations. AB - Nettle et al. evaluate evidence for the insurance hypothesis, which links obesity with the perception of food scarcity. Epidemiological findings in this area have generally been weak and inconsistent. The present commentary examines three key methodological issues arising from the literature on the association between obesity and the perception of food scarcity in humans, with suggestions for future epidemiological research. PMID- 29342572 TI - The life history model of the insurance hypothesis. AB - Nettle et al.'s explanation based on the insurance hypothesis applies only to the association between food insecurity and body weight among adult women, but not to the results about there being no such associations among adult men and children. These results may be best understood when the insurance hypothesis is integrated with the life history model. PMID- 29342573 TI - Episodic memory as an explanation for the insurance hypothesis in obesity. AB - In evaluating the insurance hypothesis as an explanation for obesity, we propose one missing piece of the puzzle. Our suggested explanation for why individuals report food insecurity is that an individual may have an impaired episodic ability to plan for the future. PMID- 29342574 TI - Toward a mechanistic understanding of the impact of food insecurity on obesity. AB - Nettle et al. provide a useful but incomplete analysis of the drivers of obesity. In this commentary, we argue that a dual-motives conceptualization of self control, together with insights from the psychology of (perceived and actual) scarcity, might help advance a more fine-grained mechanistic understanding of the observed association between food insecurity and obesity. PMID- 29342575 TI - Appraising food insecurity. AB - This commentary focuses on the mechanisms underlying the appraisal of food insecurity. I first describe what appraisal is and why it plays a major role in explaining how different individuals consider food supply as more or less secure. I then describe the potential reciprocal links between appraisal and obesity, based on the well-documented evidence that obesity can cause cognitive deficits. PMID- 29342576 TI - Implicit attitudes, eating behavior, and the development of obesity. AB - Nettle et al. describe increasing food intake (relative to energy expenditure) in response to food insecurity as a key contributor to obesity. I argue that a variety of implicit psychological mechanisms underlie this process to contribute to weight gain. The biobehavioral pathways and the social nature of food selection discussed here are importantly related to food selection and obesity. PMID- 29342577 TI - A life-history theory perspective on obesity. AB - We extend Nettle et al.'s insurance hypothesis (IH) argument, drawing upon life history theory (LHT), a developmental evolutionary perspective that documents downstream consequences of early-life exposure to unpredictable environments. We discuss novel evidence consistent with both IH and LHT, suggesting that early life exposure to unpredictable environments is associated with reduced engagement in weight management behaviors and a greater probability of adulthood obesity. PMID- 29342578 TI - Potential psychological accounts for the relation between food insecurity and body overweight. AB - We suggest two psychological mechanisms, temporal discounting and feeling of resource scarcity, for explaining the relation between food insecurity and body overweight. We demonstrate how Nettle et al.'s findings could be explained, post hoc, by each of these accounts, suggesting that their data are not rich enough to allow identification of mechanisms that underlie food insecurity and overweight relationship. PMID- 29342579 TI - Predicting human adiposity - sometimes - with food insecurity: Broaden the model for better accuracy. AB - The target article explores the role of food insecurity as a contemporary risk factor for human overweight and obesity. The authors provide conditional support for the insurance hypothesis among adult women from high-income countries. We consider the potential contribution of additional factors in producing variation in adiposity patterns between species and across human contexts. PMID- 29342580 TI - Social nature of eating could explain missing link between food insecurity and childhood obesity. AB - We suggest that social factors are key to explain the missing link between food insecurity and obesity in children. Parents and public institutions are children's nutritional gatekeepers. They protect children from food insecurity by trimming down their consumption or by institutional support. To gauge children's food insecurity, evaluations across the different nutritional gatekeepers need to be integrated. PMID- 29342581 TI - A game theory appraisal of the insurance hypothesis: Specific polymorphisms in the energy homeostasis network as imprints of a successful minimax strategy. AB - The existence of specific polymorphisms in genes of key hormones of the energy homeostasis network that have been shown to predispose to obesity and the so called metabolic syndrome provides further biological support for the proposed insurance hypothesis. In a broader sense, such polymorphisms can be understood as biological imprints of an evolutionarily successful minimax strategy employed by ancient Homo sapiens subpopulations in a one-player game against nature. PMID- 29342582 TI - Towards a behavioural ecology of obesity. AB - Addressing the obesity epidemic depends on a holistic understanding of the reasons that people become and maintain excessive fat. Theories about the causes of obesity usually focus proximately or evoke evolutionary mismatches, with minimal clinical value. There is potential for substantial progress by adapting strategic body mass regulation models from evolutionary ecology to human obesity by assessing the role of information. PMID- 29342583 TI - Anti-fat discrimination in marriage more clearly explains the poverty-obesity paradox. AB - The target article proposes the insurance hypothesis as an explanation for higher levels of obesity among food-insecure women living in high-income countries. An alternative hypothesis based on anti-fat discrimination in marriage can also account for such correlations between poverty and obesity and is more consistent with finer-grained analyses by marital status, gender, and age. PMID- 29342584 TI - Committed to the insurance hypothesis of obesity. AB - Can ideas about the regulation of body mass in birds be used to explain the breakdown of regulation associated with obesity and anorexia in humans? There is no evidence to think so. Medicine can always benefit from the application of evolutionary ecology ideas, but we must be prepared to dismiss these ideas when they just do not fit the data. PMID- 29342585 TI - "It's a bit more complicated than that": A broader perspective on determinants of obesity. AB - The insurance hypothesis does not address important factors known to contribute to obesity levels in all persons, not just adult women in the industrialized world. These include psychological determinants of eating behaviours, the decline in physical activity leading to a negative energy balance, the dense built environment, pervasive food marketing, and the increased availability of energy dense, nutrient-poor food. PMID- 29342586 TI - Anorexia: A perverse effect of attempting to control the starvation response. AB - Starvation arouses evolved protective mechanisms including binge eating and increased metabolic efficiency and fat storage. When aroused by dieting, the experiences of out-of-control eating, increased appetite, and increased fat storage arouse greater fears of obesity, spurring renewed attempts to restrict intake severely. The resulting positive feedback cycle escalates into bulimia for many, and anorexia in a few. PMID- 29342587 TI - Obesity as self-regulation failure: A "disease of affluence" that selectively hits the less affluent? AB - An effect of the long-term cycle of industrial and post-industrial global development is the increasingly generalized access to abundant and diversified food sources. This poses a substantial problem of self-regulation that mainly affects the less affluent and whose failures may play an important role in the explanation of the increasing social incidence of overweight and obesity problems. PMID- 29342588 TI - Obesity is not just elevated adiposity, it is also a state of metabolic perturbation. AB - Nettle et al. miss the crucial difference between adaptive models of storing energy and explanations for the pathological metabolic state of obesity. I suggest that the association of food insecurity with obesity in women from industrialized settings is most likely due to reverse causation: Poverty reduces agency to resist obesogenic foods, and this scenario is compounded by perturbations of insulin metabolism stemming from high adiposity and lipogenic diets. PMID- 29342589 TI - Using food insecurity in health prevention to promote consumer's embodied self regulation. AB - Health messages designed to address obesity are typically focused on the long term benefits of eating healthy food. However, according to the insurance hypothesis, obese people are food insecure, and this causes them to be overly concerned about short-term consumption. As such, it is necessary to rethink public health messaging and consider how to reduce short-term insecurity by eating healthy food. PMID- 29342590 TI - Household-level financial uncertainty could be the primary driver of the global obesity epidemic. AB - Evidence has accumulated in support of the notion that changes in household-level financial uncertainty (or "economic insecurity") may be an important fundamental cause of the global obesity epidemic. The timing and spatial/demographic incidence of the obesity epidemic suggest that economic policies aimed at expanding economic freedom may have inadvertently shifted risk to households, thereby generating a costly public health problem. PMID- 29342591 TI - Children respond to food restriction by increasing food consumption. AB - Consistent with the insurance hypothesis, research shows that when children experience restricted access to food, they display increased intake when restrictions are lifted. This effect appears more robust for girls compared to boys, and for children with lower levels of inhibitory control. The insurance hypothesis has potentially important implications for parental feeding practices. PMID- 29342592 TI - Adaptive principles of weight regulation: Insufficient, but perhaps necessary, for understanding obesity. AB - We reflect on the major issues raised by a thoughtful and diverse set of commentaries on our target article. We draw attention to the need to differentiate between ultimate and proximate explanation; the insurance hypothesis (IH) needs to be understood as an ultimate-level argument, although we welcome the various suggestions made about proximate mechanisms. Much of this response is concerned with clarifying the interrelationships between adaptationist explanations like the IH, constraint explanations, and dysfunction explanations, in understanding obesity. We also re-examine the empirical evidence base, concurring that it is equivocal and only partially supportive. Several commentators offer additional supporting evidence, whereas others propose alternative explanations for the evidence we reviewed and suggest ways that our current knowledge could be strengthened. Finally, we take the opportunity to clarify some of the assumptions and predictions of our formal model. PMID- 29342593 TI - Parallel attentive processing and pre-attentive guidance. AB - This commentary focuses on two related, open questions in Hulleman & Olivers' (H&O's) proposal: (1) the nature of the parallel attentive process that determines target presence within, and thus presumably the size of, the functional visual field, and (2) how the pre-attentive guidance mechanism must be conceived to also account for search performance in tasks that afford no reliable target-based guidance. PMID- 29342594 TI - "Target-absent" decisions in cancer nodule detection are more efficient than "target-present" decisions! AB - Many parts of the medical image are never fixated when a radiologist searches for cancer nodules. Experts are able to use peripheral vision very efficiently. The size of the functional visual field appears to increase according to the level of expertise. However, searching a medical image diverges, in a puzzling way, from the typical search for a target feature in the laboratory. PMID- 29342595 TI - Contextual and social cues may dominate natural visual search. AB - A framework where only the size of the functional visual field of fixations can vary is hardly able to explain natural visual-search behavior. In real-world search tasks, context guides eye movements, and task-irrelevant social stimuli may capture the gaze. PMID- 29342596 TI - An appeal against the item's death sentence: Accounting for diagnostic data patterns with an item-based model of visual search. AB - We show that our item-based model, competitive guided search, accounts for the empirical patterns that Hulleman & Olivers (H&O) invoke against item-based models, and we highlight recently reported diagnostic data that challenge their approach. We advise against "forsaking the item" unless and until a full fixation based model is shown to be superior to extant item-based models. PMID- 29342597 TI - Chances and challenges for an active visual search perspective. AB - Using fixations as the fundamental unit of visual search is an appealing gear change in a paradigm that has long dominated attention research. To truly inform theories of search, however, additional challenges must be faced, including (1) an empirically motivated definition of fixation in the presence of fixational saccades and (2) the biases and limitations of transsaccadic perception and memory. PMID- 29342598 TI - Mathematical fixation: Search viewed through a cognitive lens. AB - We provide a mathematical category theory account of the size and location of the authors' Functional View Field (FVF). Category theory explains systematic cognitive ability via universal construction, that is, a necessary and sufficient condition for composition of cognitive processes. Similarly, FVF size and location is derived from a (universal) construction called a fibre (pullback) bundle. PMID- 29342599 TI - Those pernicious items. AB - Hulleman & Olivers (H&O) identify a number of problems with item-based thinking and its impact on our understanding of visual search. I detail ways in which item thought is worse than the authors suggest. I concur with the broad strokes of the theory they set out, and also clarify the relationship between their view and our recent theory of visual search. PMID- 29342600 TI - Where the item still rules supreme: Time-based selection, enumeration, pre attentive processing and the target template? AB - I propose that there remains a central role for the item (or its equivalent) in a wider range of search and search-related tasks/functions than might be conveyed by the article. I consider the functional relationship between the framework and some aspects of previous theories, and suggest some challenges that the new framework might encounter. PMID- 29342601 TI - "I am not dead yet!" - The Item responds to Hulleman & Olivers. AB - The item can only be dispensed within artificial tasks that, although useful in the lab, do not reflect the real world. There, the attended item is the goal of search. Hulleman & Olivers' (H&O's) model can ignore the item only by reducing search to the question of whether a patch of 0s (distractors) contains a 1 (target). PMID- 29342602 TI - Task implementation and top-down control in continuous search. AB - Evidence from continuous search suggests that targets are detected by default, whereas distractors are processed in considerable depth. These observations shed light on task implementation and top-down control. Task implementation builds on forming dynamic distractor models, based on continuous integration of distractor related information. Top-down control builds on using these models for testing upcoming stimulus information. PMID- 29342603 TI - The "item" as a window into how prior knowledge guides visual search. AB - We challenge the central idea proposed in Hulleman & Olivers (H&O) by arguing that the "item" is still useful for understanding visual search and for developing new theoretical frameworks. The "item" is a flexible unit that represents not only an individual object, but also a bundle of objects that are grouped based on prior knowledge. Uncovering how the "item" is represented based on prior knowledge is essential for advancing theories of visual search. PMID- 29342604 TI - Eye movements are an important part of the story, but not the whole story. AB - Some previous accounts of visual search have emphasized covert attention at the expense of eye movements, and others have focused on eye movements while ignoring covert attention. Both selection mechanisms are likely to contribute to many searches, and a full account of search will probably need to explain how the two interact to find visual targets. PMID- 29342605 TI - Fixations are not all created equal: An objection to mindless visual search. AB - This call to revolution in theories of visual search does not go far enough. Treating fixations as uniform is an oversimplification that obscures the critical role of the mind. We remind readers that what happens during a fixation depends on mindset, as shown in studies of search strategy and of humans' ability to rapidly resume search following an interruption. PMID- 29342606 TI - Analysing real-world visual search tasks helps explain what the functional visual field is, and what its neural mechanisms are. AB - Rejecting information-processing-based theory permits the merging of a top-down analysis of visual search tasks with a bottom-up analysis of brain structure and function. This reveals the true nature of the functional visual field and its precise role in the conduct of visual search tasks. The merits of such analyses over the traditional methods of the authors are described. PMID- 29342607 TI - Item-based selection is in good shape in visual compound search: A view from electrophysiology. AB - We argue that although the framework put forward by Hulleman & Olivers (H&O) can successfully explain much of visual search behaviour, it appears limited to tasks without precise target identification demands. In particular, we contend that the unit of selection may be larger than a single item in standard detection tasks, whereas the unit may mandatorily be item-based in compound tasks. PMID- 29342608 TI - Set size slope still does not distinguish parallel from serial search. AB - Much of the evidence for theories in visual search (including Hulleman & Olivers' [H&O's]) comes from inferences made using changes in mean RT as a function of the number of items in a display. We have known for more than 40 years that these inferences are based on flawed reasoning and obscured by model mimicry. Here we describe a method that avoids these problems. PMID- 29342609 TI - The FVF framework and target prevalence effects. AB - The Functional Visual Field (FVF) offers explanatory power. To us, it relates to existing literature on the flexibility of attentional focus in visual search and reading (Eriksen & St. James 1986; McConkie & Rayner 1975). The target article promotes reflection on existing findings. Here we consider the FVF as a mechanism in the Prevalence Effect (PE) in visual search. PMID- 29342610 TI - Scanning movements during haptic search: similarity with fixations during visual search. AB - Finding relevant objects through vision, or visual search, is a crucial function that has received considerable attention in the literature. After decades of research, data suggest that visual fixations are more crucial to understanding how visual search works than are the attributes of stimuli. This idea receives further support from the field of haptic search. PMID- 29342611 TI - Feature integration, attention, and fixations during visual search. AB - We argue that mechanistic premises of "item-based" theories are not invalidated by the fixation-based approach. We use item-based theories to propose an account that does not advocate strict serial item processing and integrates fixations. The main focus of this account is feature integration within fixations. We also suggest that perceptual load determines the size of the fixations. PMID- 29342612 TI - The FVF might be influenced by object-based attention. AB - Hulleman & Olivers (H&O) argue that the primary unit in search should be fixations, and in doing so posit a Functional View Field (FVF). There is evidence from the object-based visual attention literature that the FVF may not process visual information uniformly. Here I sketch how object-based attention may influence processing within the FVF as well as the shape of the FVF. PMID- 29342613 TI - On the brink: The demise of the item in visual search moves closer. AB - We proposed to abandon the item as conceptual unit in visual search and adopt a fixation-based framework instead. We treat various themes raised by our commentators, including the nature of the Functional Visual Field and existing similar ideas, alongside the importance of items, covert attention, and top down/contextual influences. We reflect on the current state of, and future directions for, visual search. PMID- 29342614 TI - Searching for unity: Real-world versus item-based visual search in age-related eye disease. AB - When studying visual search, item-based approaches using synthetic targets and distractors limit the real-world applicability of results. Everyday visual search can be impaired in patients with common eye diseases like glaucoma and age related macular degeneration. We highlight some results in the literature that suggest assessment of real-word search tasks in these patients could be clinically useful. PMID- 29342615 TI - Gaze-contingent manipulation of the FVF demonstrates the importance of fixation duration for explaining search behavior. AB - Hulleman & Olivers' (H&O's) model introduces variation of the functional visual field (FVF) for explaining visual search behavior. Our research shows how the FVF can be studied using gaze-contingent displays and how FVF variation can be implemented in models of gaze control. Contrary to H&O, we believe that fixation duration is an important factor when modeling visual search behavior. PMID- 29342616 TI - Oh, the number of things you will process (in parallel)! AB - We highlight the importance of considering the variance produced during the parallel processing stage in vision and present a case for why it is useful to consider the "item" as a meaningful unit of study when investigating early visual processing in visual search tasks. PMID- 29342617 TI - What fixations reveal about oculomotor scanning behavior in visual search. AB - Hulleman & Olivers' (H&O's) conceptual framework does not consider variation of fixation duration and its interaction with the size of the functional viewing field (FVF). Here we provide empirical evidence of a dynamic interaction between the two parameters, suggesting that fixations, as the central unit in H&O's framework, should be studied on both the spatial and temporal dimensions. PMID- 29342618 TI - Why the item will remain the unit of attentional selection in visual search. AB - Hulleman & Olivers (H&O) reject item-based serial models of visual search, and they suggest that items are processed equally and globally during each fixation period. However, neuroscientific studies have shown that attentional biases can emerge in parallel but in a spatially selective item-based fashion. Even within a parallel architecture for visual search, the item remains the critical unit of selection. PMID- 29342619 TI - Until the demise of the functional field of view. AB - Hulleman & Olivers (H&O) make a much-needed stride forward for a better understanding of visual search behavior by rejecting theories based on discrete stimulus items. I propose that the framework could be further enhanced by clearly delineating distinct mechanisms for attention guidance, selection, and enhancement during visual search, instead of conflating them into a single functional field of view. PMID- 29342620 TI - How functional are functional viewing fields? AB - Hulleman & Olivers' (H&O's) proposal is a refreshing addition to the visual search literature. Although we like their proposal that fixations, not individual items should be considered a fundamental unit in visual search, we point out some unresolved problems that their account will have to solve. Additionally, we consider predictions that can be made from the account, in particular in relation to priming of visual search, finding that the account generates interesting testable predictions. PMID- 29342621 TI - Don't admit defeat: A new dawn for the item in visual search. AB - Even though we lack a precise definition of "item," it is clear that people do parse their visual environment into objects (the real-world equivalent of items). We will review evidence that items are essential in visual search, and argue that computer vision - especially deep learning - may offer a solution for the lack of a solid definition of "item." PMID- 29342622 TI - Cognitive architecture enables comprehensive predictive models of visual search. AB - With a simple demonstration model, Hulleman & Olivers (H&O) effectively argue that theories of visual search need an overhaul. We point to related literature in which visual search is modeled in even more detail through the use of computational cognitive architectures that incorporate fundamental perceptual, cognitive, and motor mechanisms; the result of such work thus far bolsters their arguments considerably. PMID- 29342623 TI - Looking further! The importance of embedding visual search in action. AB - A unified account of visual search in complex everyday environments requires additional deliberations on the functional grounding of Hulleman & Olivers' (H&O's) functional viewing field (FVF) model. Their model can accommodate exploitation of information that is distributed across the immediate environment. Yet the differences in search between genuinely interacting in the environment and merely watching it should challenge researchers to look further. PMID- 29342625 TI - Evidence for a number sense. AB - Numerosity is inherently confounded by related stimulus attributes such as density and area, and many studies have reported interactions of various strengths between area, density, and numerosity. However, direct measurements of sensitivity within the area-density-numerosity space show that numerosity emerges as the most spontaneous and sensitive dimension, strongly supporting the existence of a dedicated number sense. PMID- 29342624 TI - Infants discriminate number: Evidence against the prerequisite of visual object individuation and the primacy of continuous magnitude. AB - Leibovich et al. hypothesize that the absence of visual object individuation limits infants' numerical skills and necessitates a reliance on continuous magnitudes. We argue that parallels between infants' numerical discrimination in the visual and auditory modalities, their abilities to match numerosities across modalities, and their greater ability to discriminate changes in number compared with continuous magnitudes contradict the authors' assumptions. PMID- 29342626 TI - Why try saving the ANS? An alternative proposal. AB - Leibovich et al. propose that continuous magnitudes and a number sense are used holistically to judge numerosity. We point out that their proposal is incomplete and implausible: incomplete, as it does not explain how continuous magnitudes are calculated; implausible, as it cannot explain performance in estimation tasks. We propose that we do not possess a number sense. Instead, we assume that numerosity judgments are accomplished by weighing the different continuous magnitudes constituting numerosity. PMID- 29342627 TI - Magnitude, numerosity, and development of number: Implications for mathematics disabilities. AB - Leibovich et al. challenge the prevailing view that non-symbolic number sense (e.g., sensing number the same way one might sense color) is innate, that detection of numerosity is distinct from detection of continuous magnitude. In the present commentary, the authors' viewpoint is discussed in light of the integrative theory of numerical development along with implications for understanding mathematics disabilities. PMID- 29342628 TI - Commentary on Leibovich et al.: What next? AB - The conclusions reached by Leibovich et al. urge the field to regroup and consider new ways of conceptualizing quantitative development. We suggest three potential directions for new research that follow from the authors' extensive review, as well as building on the common ground we can take from decades of research in this area. PMID- 29342629 TI - How not to develop a sense of number. AB - The authors rightly point to the theoretical importance of interactions of space and number through the life span, yet propose a theory with several weaknesses. In addition to proclaiming itself unfalsifiable, its stage-like format and emphasis on the role of selective attention are at odds with what is known about the development of spatial-numerical associations in infancy. PMID- 29342630 TI - A "sense of magnitude" requires a new alternative for learning numerical symbols. AB - Leibovich et al. proposed that the processing of numerosities is based primarily on a "sense of magnitude." The consequences of this proposal for how numerical symbols acquire their meaning are, however, neglected. We argue that symbols cannot be learned by associating them with a system that is not yet able to derive discrete numbers accurately because of immature cognitive control. PMID- 29342631 TI - Right idea, wrong magnitude system. AB - Leibovich et al. claim that number representations are non-existent early in life and that the associations between number and continuous magnitudes reside in stimulus confounds. We challenge both claims - positing, instead, that number is represented independently of continuous magnitudes already in infancy, but is nonetheless more deeply connected to other magnitudes through adulthood than acknowledged by the "sense of magnitude" theory. PMID- 29342632 TI - The contributions of non-numeric dimensions to number encoding, representations, and decision-making factors. AB - Leibovich et al. suggest that congruency effects in number perception (biases towards smaller, denser, etc., dots) are evidence for the number's dependence on these dimensions. I argue that they fail to differentiate between effects at three distinct levels of number perception - encoding, representations, and decision making - and that differentiating between these allows the number to be independent from, but correlated with, non-numeric dimensions. PMID- 29342633 TI - Numerical magnitude evaluation as a foundation for decision making. AB - The evaluation of magnitudes serves as a foundation not only for numerical and mathematical cognition, but also for decision making. Recent theoretical developments and empirical studies have linked numerical magnitude evaluation to a wide variety of core phenomena in decision making and challenge the idea that preferences are driven by an innate, universal, and stable sense of number or value. PMID- 29342634 TI - Direct and rapid encoding of numerosity in the visual stream. AB - The target article dismisses all prior work purporting to demonstrate that number is a conceptual primitive. Here, we take issue with their misrepresentation of our recent line of work on numerosity perception, which demonstrates rapid and direct encoding of numerosity and undermines the thesis of the target article that "continuous magnitudes are more automatic and basic than numerosities" (sect. 1, para. 2). PMID- 29342635 TI - Numerical intuitions in infancy: Give credit where credit is due. AB - Leibovich et al. overlook numerous human infant studies pointing to an early emerging number sense. These studies have carefully manipulated continuous magnitudes in the context of a numerical task revealing that infants can discriminate number when extent is controlled, that infants fail to track extent cues with precision, and that infants find changes in extent less salient than numerical changes. PMID- 29342636 TI - Selecting the model that best fits the data. AB - Leibovich et al. argue that that none of the experiments they review really establishes that human adults, infants, or nonhuman animals are sensitive to numerosity independent of a range of continuous quantities. We do not dispute their claim that the empirical record is inconclusive but argue that model-based data analysis does offer a way to make progress. PMID- 29342637 TI - Multitudes are adaptable magnitudes in the estimation of number. AB - Visual number comparison does not require participants to choose a unit, whereas units are fundamental to the definition of number. Studies using magnitude estimation rather than comparison show that number perception is compressed dramatically past about 20 units. Even estimates of 5-20 items are increasingly susceptible to effects of visual adaptation, suggesting a rather narrow range in which subitizing-like categorization processes blend into greater reliance on adaptable magnitude information. PMID- 29342638 TI - The contribution of fish studies to the "number sense" debate. AB - Leibovich et al. propose that number sense is not innate but gradually emergent during ontogeny following experience. We argue that this hypothesis cannot be reasonably tested in humans, in which the contribution of neural maturation and experience cannot be experimentally manipulated. Studies on animals, especially fish, can more effectively provide critical insights into the innate nature of numerical abilities. PMID- 29342639 TI - Number faculty is alive and kicking: On number discriminations and number neurons. AB - Leibovich et al. advocate for a single "sense of magnitude" to which a dedicated faculty for number could allegedly be reduced. This conclusion is unjustified as the authors adopt an unnecessarily narrow definition of "number sense," neglect studies that demonstrate non-symbolic numerosity representation, and furthermore ignore abstract number representations in the brain. PMID- 29342640 TI - Innateness of magnitude perception? Skill can be acquired and mastered at all ages. AB - We agree with Leibovich et al.'s argument that the number sense theory should be re-evaluated. However, we argue that highly efficient skills (i.e., fluent and highly accurate, "automatic," performance) can be acquired and mastered at all ages. Hence, evidence for primacy or fluency in perceiving continuous magnitudes is insufficient for supporting strong conclusions about the innateness of this aptitude. PMID- 29342641 TI - Magnitude rather than number: More evidence needed. AB - Leibovich et al. do not present enough empirical support to overturn decades of work supporting a number sense nor to convince the reader that a magnitude sense provides a better explanation of the literature. Here we highlight what we feel are the main points of weakness and the types of evidence that could be provided to be more convincing. PMID- 29342642 TI - Is the ANS linked to mathematics performance? AB - Leibovich et al. argue persuasively that researchers should not assume that approximate number system (ANS) tasks harness an innate sense of number. However, some studies have reported a causal link between ANS tasks and mathematics performance, implicating the ANS in the development of numerical skills. Here we report a p-curve analysis, which indicates that these experimental studies do not contain evidential value. PMID- 29342643 TI - Infants, animals, and the origins of number. AB - Where do human numerical abilities come from? Leibovich et al. argue against nativist views of numerical development noting limitations in newborns' vision and limitations regarding newborns' ability to individuate objects. I argue that these considerations do not undermine competing nativist views and that Leibovich et al.'s model itself presupposes that infant learners have numerical representations. PMID- 29342644 TI - What is the precise role of cognitive control in the development of a sense of number? AB - The theory put forward by Leibovich et al. of how children acquire a sense of number does not specify the mechanisms through which cognitive control plays a role in this process. We argue that visual attention and number word knowledge influence each other over development and contribute to the development of the concept of number. PMID- 29342645 TI - What is a number? The interplay between number and continuous magnitudes. AB - Leibovich et al. argue that it is impossible to control for all continuous magnitudes in a numerical task. We contend that continuous magnitudes (i.e., perimeter, area, density) can be simultaneously controlled. Furthermore, we argue that shedding light on the interplay between number and continuous magnitudes - rather than considering them independently - will provide a much more fruitful approach to understanding mathematical abilities. PMID- 29342646 TI - The evolvement of discrete representations from continuous stimulus properties: A possible overarching principle of cognition. AB - Leibovich et al. propose that non-symbolic numerosity abilities develop from the processing of more basic, continuous magnitudes such as size, area, and density. Here I review similar arguments arising in the visual perception field and further propose that the evolvement of discrete representations from continuous stimulus properties may be a fundamental characteristic of cognitive development. PMID- 29342647 TI - Controlling for continuous variables is not futile: What we can learn about number representation despite imperfect control. AB - Leibovich et al. argue that because it is impossible to isolate numerosity in a stimulus set, attempts to show that number is processed independently of continuous magnitudes are necessarily in vain. I propose that through clever design and manipulation of confounding variables, we can gain deep insight into number representation and its relationship to the representation of other magnitudes. PMID- 29342648 TI - Toward an integrative approach to numerical cognition. AB - In response to the commentaries, we have refined our suggested model and discussed ways in which the model could be further expanded. In this context, we have elaborated on the role of specific continuous magnitudes. We have also found it important to devote a section to evidence considered the "smoking gun" of the approximate number system theory, including cross-modal studies, animal studies, and so forth. Lastly, we suggested some ways in which the scientific community can promote more transparent and collaborative research by using an open science approach, sharing both raw data and stimuli. We thank the contributors for their enlightening comments and look forward to future developments in the field. PMID- 29342649 TI - Approximate number sense theory or approximate theory of magnitude? AB - Leibovich et al. argue that the evidence in favor of a perceptual mechanism devoted to the extraction of numerosity from visual collections is unsatisfactory and propose to replace it with an unspecific mechanism capturing approximate magnitudes from continuous dimensions. We argue that their representation of the evidence is incomplete and that their theoretical proposal is too vague to be useful. PMID- 29342650 TI - Computational foundations of the visual number sense. AB - We provide an emergentist perspective on the computational mechanism underlying numerosity perception, its development, and the role of inhibition, based on our deep neural network model. We argue that the influence of continuous visual properties does not challenge the notion of number sense, but reveals limit conditions for the computation that yields invariance in numerosity perception. Alternative accounts should be formalized in a computational model. PMID- 29342651 TI - The number sense is neither last resort nor of primary import. AB - Leibovich et al. argue that evidence for an innate sense of number in children and animals may instead reflect the processing of continuous magnitude properties. However, some comparative research highlights responding on the basis of numerosity when non-numerical confounds are controlled. Future comparative tests might evaluate how early experience with continuous magnitudes affects the development of a sense of number. PMID- 29342652 TI - Perceiving numerosity from birth. AB - Leibovich et al. opened up an important discussion on the nature and origins of numerosity perception. The authors rightly point out that non-numerical features of stimuli influence this ability. Despite these biases, there is evidence that from birth, humans perceive and represent numerosities, and not just non numerical quantitative features such as item size, density, and convex hull. PMID- 29342653 TI - From continuous magnitudes to symbolic numbers: The centrality of ratio. AB - Leibovich et al.'s theory neither accounts for the deep connections between whole numbers and other classes of number nor provides a potential mechanism for mapping continuous magnitudes to symbolic numbers. We argue that focusing on non symbolic ratio processing abilities can furnish a more expansive account of numerical cognition that remedies these shortcomings. PMID- 29342654 TI - Negative results are needed to show the specific value of a cultural explanation for g. AB - Burkart et al. suggest that social learning can explain the cognitive positive manifold for social animals, including humans. We caution that simpler explanations of positive trait intercorrelations exist, such as genetic load. To test the suggested explanation's specificity, we also need to examine non-social species and traits, such as health, that are distal to cognitive abilities. PMID- 29342655 TI - Domains of generality. AB - We argue that general intelligence, as presented in the target article, generates multiple distinct and non-equivalent characterisations. Clarifying this central concept is necessary for assessing Burkart et al.'s proposal that the cultural intelligence hypothesis is the best explanation for the evolution of general intelligence. We assess this claim by considering two characterisations of general intelligence presented in the article. PMID- 29342656 TI - Theory of mind: A foundational component of human general intelligence. AB - To understand the evolution of general intelligence, Burkart et al. endorse a "cultural intelligence approach," which emphasizes the critical importance of social interaction. We argue that theory of mind provides an essential foundation and shared perspective for the efficient ontogenetic transmission of crucial knowledge and skills during human development and, together with language, can account for superior human general intelligence. PMID- 29342657 TI - Coexistence of general intelligence and specialized modules. AB - Here, we specifically discuss why and to what extent we agree with Burkart et al. about the coexistence of general intelligence and modular cognitive adaptations, and why we believe that the distinction between primary and secondary modules they propose is indeed essential. PMID- 29342658 TI - G but not g: In search of the evolutionary continuity of intelligence. AB - Conceptualizing intelligence in its biological context, as the expression of manifold adaptations, compels a rethinking of measuring this characteristic in humans, relying also on animal studies of analogous skills. Mental manipulation, as an extension of object manipulation, provides a continuous, biologically based concept for studying G as it pertains to individual differences in humans and other species. PMID- 29342659 TI - Taking a multiple intelligences (MI) perspective. AB - The theory of multiple intelligences (MI) seeks to describe and encompass the range of human cognitive capacities. In challenging the concept of general intelligence, we can apply an MI perspective that may provide a more useful approach to cognitive differences within and across species. PMID- 29342660 TI - The evolution of general intelligence in all animals and machines. AB - We strongly agree that general intelligence occurs in many animals but find the cultural intelligence hypothesis of limited usefulness. Any viable hypothesis explaining the evolution of general intelligence should be able to account for it in all species where it is known to occur, and should also predict the conditions under which we can develop machines with general intelligence as well. PMID- 29342661 TI - The false dichotomy of domain-specific versus domain-general cognition. AB - The qualitative division between domain-general and domain-specific cognition is unsubstantiated. The distinction is instead better viewed as opposites on a gradual scale, which has more explanatory power and fits current empirical evidence better. We also argue that causal cognition may be more general than social learning, which it often involves. PMID- 29342662 TI - Contemporary evolutionary psychology and the evolution of intelligence. AB - Burkart et al.'s impressive synthesis will serve as a valuable resource for intelligence research. Despite its strengths, the target article falls short of offering compelling explanations for the evolution of intelligence. Here, we outline its shortcomings, illustrate how these can lead to misguided conclusions about the evolution of intelligence, and suggest ways to address the article's key questions. PMID- 29342663 TI - Understanding the relationship between general intelligence and socio-cognitive abilities in humans. AB - Burkart et al. consider that the relationship between general intelligence and socio-cognitive abilities is poorly understood in animals and humans. We examine this conclusion in the perspective of an already substantial evidence base on the relationship among general intelligence, theory of mind, and emotional intelligence. We propose a link between general intelligence and socio-cognitive abilities within humans. PMID- 29342664 TI - Of mice and men, nature and nurture, and a few red herrings. AB - Burkart et al.'s proposal is based on three false premises: (1) theories of the mind are either domain-specific/modular (DSM) or domain-general (DG); (2) DSM systems are considered inflexible, built by nature; and (3) animal minds are deemed as purely DSM. Clearing up these conceptual confusions is a necessary first step in understanding how general intelligence evolved. PMID- 29342665 TI - Where is the evidence for general intelligence in nonhuman animals? AB - This commentary contrasts evolutionary plausibility with empirical evidence and cognitive continuity with radiation and convergent evolution. So far, neither within-species nor between-species comparisons on the basis of rigorous experimental and species-appropriate tests substantiate the claims made in the target article. Caution is advisable on meta-analytical comparisons that primarily rely on publication frequencies and overgeneralizations (from murids and primates to other nonhuman animals). PMID- 29342666 TI - The evolution of fluid intelligence meets formative g. AB - The argument by Burkart et al. in the target article relates to fluid (not general) intelligence: a domain-general ability involved in complex, novel problem solving, and strongly related to working memory and executive functions. A formative framework, under which the general factor of intelligence is the common consequence, not the common cause of the covariance among tests is more in line with an evolutionary approach. PMID- 29342667 TI - Hierarchy, multidomain modules, and the evolution of intelligence. AB - In this commentary, we support a complex, mosaic, and multimodal approach to the evolution of intelligence. Using the arcuate fasciculus as an example of discontinuity in the evolution of neurobiological architectures, we argue that the strict dichotomy of modules versus G, adopted by Burkart et al. in the target article, is insufficient to interpret the available statistical and experimental evidence. PMID- 29342668 TI - Habit formation generates secondary modules that emulate the efficiency of evolved behavior. AB - We discuss the evolutionary implications of connections drawn between the authors' learned "secondary modules" and the habit-formation system that appears to be ubiquitous among vertebrates. Prior to any subsequent coevolution with social learning, we suggest that aspects of general intelligence likely arose in tandem with mechanisms of adaptive motor control that rely on basal ganglia circuitry. PMID- 29342669 TI - "Birdbrains" should not be ignored in studying the evolution of g. AB - The authors evaluate evidence for general intelligence (g) in nonhumans but lean heavily toward mammalian data. They mention, but do not discuss in detail, evidence for g in nonmammalian species, for which substantive material exists. I refer to a number of avian studies, particularly in corvids and parrots, which would add breadth to the material presented in the target article. PMID- 29342670 TI - Evolution, brain size, and variations in intelligence. AB - Across taxonomic subfamilies, variations in intelligence (G) are sometimes related to brain size. However, within species, brain size plays a smaller role in explaining variations in general intelligence (g), and the cause-and-effect relationship may be opposite to what appears intuitive. Instead, individual differences in intelligence may reflect variations in domain-general processes that are only superficially related to brain size. PMID- 29342671 TI - The evolution of analytic thought? AB - We argue that the truly unique aspect of human intelligence is not the variety of cognitive skills that are ontogenetically constructed, but rather the capacity to decide when to develop and apply said skills. Even if there is good evidence for g in nonhuman animals, we are left with major questions about how the disposition to think analytically can evolve. PMID- 29342672 TI - General intelligence is an emerging property, not an evolutionary puzzle. AB - Burkart et al. contend that general intelligence poses a major evolutionary puzzle. This assertion presupposes a reification of general intelligence - that is, assuming that it is one "thing" that must have been selected as such. However, viewing general intelligence as an emerging property of multiple cognitive abilities (each with their own selective advantage) requires no additional evolutionary explanation. PMID- 29342673 TI - General intelligence does not help us understand cognitive evolution. AB - Burkart et al. conflate the domain-specificity of cognitive processes with the statistical pattern of variance in behavioural measures that partly reflect those processes. General intelligence is a statistical abstraction, not a cognitive trait, and we argue that the former does not warrant inferences about the nature or evolution of the latter. PMID- 29342674 TI - When does cultural transmission favour or instead substitute for general intelligence? AB - The cultural intelligence hypothesis is an exciting new development. The hypothesis that it encourages general intelligence is intriguing, but it presents a paradox insofar as social learning is often suggested to instead reduce reliance on individual cognition and exploration. There is thus a need to specify more clearly the contexts in which cultural transmission may select for general intelligence. PMID- 29342675 TI - An all-positive correlation matrix is not evidence of domain-general intelligence. AB - We welcome the cross-disciplinary approach taken by Burkart et al. to probe the evolution of intelligence. We note several concerns: the uses of g and G, rank ordering species on cognitive ability, and the meaning of general intelligence. This subject demands insights from several fields, and we look forward to cross disciplinary collaborations. PMID- 29342676 TI - Disentangling learning from knowing: Does associative learning ability underlie performances on cognitive test batteries? AB - Are the mechanisms underlying variations in the performance of animals on cognitive test batteries analogous to those of humans? Differences might result from procedural inconsistencies in test battery design, but also from differences in how animals and humans solve cognitive problems. We suggest differentiating associative-based (learning) from rule-based (knowing) tasks to further our understanding of cognitive evolution across species. PMID- 29342677 TI - General intelligence is a source of individual differences between species: Solving an anomaly. AB - Burkart et al. present a paradox - general factors of intelligence exist among individual differences (g) in performance in several species, and also at the aggregate level (G); however, there is ambiguous evidence for the existence of g when analyzing data using a mixed approach, that is, when comparing individuals of different species using the same cognitive ability battery. Here, we present an empirical solution to this paradox. PMID- 29342678 TI - Genomic data can illuminate the architecture and evolution of cognitive abilities. AB - Does general intelligence exist across species, and has it been a target of natural selection? These questions can be addressed with genomic data, which can rule out artifacts by demonstrating that distinct cognitive abilities are genetically correlated and thus share a biological substrate. This work has begun with data from humans and can be extended to other species; it should focus not only on general intelligence but also specific capacities like language and spatial ability. PMID- 29342679 TI - Future directions for studying the evolution of general intelligence. AB - The goal of our target article was to lay out current evidence relevant to the question of whether general intelligence can be found in nonhuman animals in order to better understand its evolution in humans. The topic is a controversial one, as evident from the broad range of partly incompatible comments it has elicited. The main goal of our response is to translate these issues into testable empirical predictions, which together can provide the basis for a broad research agenda. PMID- 29342680 TI - G and g: Two markers of a general cognitive ability, or none? AB - The search for general processes that underlie intelligence in nonhumans has followed two strategies: one that concerns observing differences between nonhuman species (G), the second that concerns observing individual differences within a nonhuman species (g). This commentary takes issue with both attempts to mark a general factor: Differential responding to contextual variables compromises the search for G, and the lack of predictive validity compromises g. PMID- 29342681 TI - A pointer's hypothesis of general intelligence evolved from domain-specific demands. AB - A higher-order function may evolve phylogenetically if it is demanded by multiple domain-specific modules. Task-specificity to solve a unique adaptive problem (e.g., foraging or mating) should be distinguished from function-specificity to deal with a common computational demand (e.g., numeracy, verbal communication) required by many tasks. A localized brain function is likely a result of such common computational demand. PMID- 29342682 TI - It's time to move beyond the "Great Chain of Being". AB - The target article provides an anthropocentric model of understanding intelligence in nonhuman animals. Such an idea dates back to Plato and, more recently, Lovejoy: On Earth, humans are at the top and other animals at successively lower levels. We then evaluate these other animals by our anthropocentric folk theories of their intelligence rather than by their own adaptive requirements. PMID- 29342683 TI - Theories or fragments? AB - Lake et al. argue persuasively that modelling human-like intelligence requires flexible, compositional representations in order to embody world knowledge. But human knowledge is too sparse and self-contradictory to be embedded in "intuitive theories." We argue, instead, that knowledge is grounded in exemplar-based learning and generalization, combined with high flexible generalization, a viewpoint compatible both with non-parametric Bayesian modelling and with sub symbolic methods such as neural networks. PMID- 29342684 TI - The architecture challenge: Future artificial-intelligence systems will require sophisticated architectures, and knowledge of the brain might guide their construction. AB - In this commentary, we highlight a crucial challenge posed by the proposal of Lake et al. to introduce key elements of human cognition into deep neural networks and future artificial-intelligence systems: the need to design effective sophisticated architectures. We propose that looking at the brain is an important means of facing this great challenge. PMID- 29342685 TI - Building machines that learn and think for themselves. AB - We agree with Lake and colleagues on their list of "key ingredients" for building human-like intelligence, including the idea that model-based reasoning is essential. However, we favor an approach that centers on one additional ingredient: autonomy. In particular, we aim toward agents that can both build and exploit their own internal models, with minimal human hand engineering. We believe an approach centered on autonomous learning has the greatest chance of success as we scale toward real-world complexity, tackling domains for which ready-made formal models are not available. Here, we survey several important examples of the progress that has been made toward building autonomous agents with human-like abilities, and highlight some outstanding challenges. PMID- 29342686 TI - Back to the future: The return of cognitive functionalism. AB - The claims that learning systems must build causal models and provide explanations of their inferences are not new, and advocate a cognitive functionalism for artificial intelligence. This view conflates the relationships between implicit and explicit knowledge representation. We present recent evidence that neural networks do engage in model building, which is implicit, and cannot be dissociated from the learning process. PMID- 29342687 TI - Deep-learning networks and the functional architecture of executive control. AB - Lake et al. underrate both the promise and the limitations of contemporary deep learning techniques. The promise lies in combining those techniques with broad multisensory training as experienced by infants and children. The limitations lie in the need for such systems to possess functional subsystems that generate, monitor, and switch goals and strategies in the absence of human intervention. PMID- 29342688 TI - Children begin with the same start-up software, but their software updates are cultural. AB - We propose that early in ontogeny, children's core cognitive abilities are shaped by culturally dependent "software updates." The role of sociocultural inputs in the development of children's learning is largely missing from Lake et al.'s discussion of the development of human-like artificial intelligence, but its inclusion would help move research even closer to machines that can learn and think like humans. PMID- 29342689 TI - Causal generative models are just a start. AB - Human reasoning is richer than Lake et al. acknowledge, and the emphasis on theories of how images and scenes are synthesized is misleading. For example, the world knowledge used in vision presumably involves a combination of geometric, physical, and other knowledge, rather than just a causal theory of how the image was produced. In physical reasoning, a model can be a set of constraints rather than a physics engine. In intuitive psychology, many inferences proceed without detailed causal generative models. How humans reliably perform such inferences, often in the face of radically incomplete information, remains a mystery. PMID- 29342690 TI - What can the brain teach us about building artificial intelligence? AB - Lake et al. offer a timely critique on the recent accomplishments in artificial intelligence from the vantage point of human intelligence and provide insightful suggestions about research directions for building more human-like intelligence. Because we agree with most of the points they raised, here we offer a few points that are complementary. PMID- 29342691 TI - Thinking like animals or thinking like colleagues? AB - We comment on ways in which Lake et al. advance our understanding of the machinery of intelligence and offer suggestions. The first set concerns animal level versus human-level intelligence. The second concerns the urgent need to address ethical issues when evaluating the state of artificial intelligence. PMID- 29342692 TI - Evidence from machines that learn and think like people. AB - We agree with Lake et al.'s trenchant analysis of deep learning systems, including that they are highly brittle and that they need vastly more examples than do people. We also agree that human cognition relies heavily on structured relational representations. However, we differ in our analysis of human cognitive processing. We argue that (1) analogical comparison processes are central to human cognition; and (2) intuitive physical knowledge is captured by qualitative representations, rather than quantitative simulations. PMID- 29342693 TI - Understand the cogs to understand cognition. AB - Lake et al. suggest that current AI systems lack the inductive biases that enable human learning. However, Lake et al.'s proposed biases may not directly map onto mechanisms in the developing brain. A convergence of fields may soon create a correspondence between biological neural circuits and optimization in structured architectures, allowing us to systematically dissect how brains learn. PMID- 29342694 TI - Crossmodal lifelong learning in hybrid neural embodied architectures. AB - Lake et al. point out that grounding learning in general principles of embodied perception and social cognition is the next step in advancing artificial intelligent machines. We suggest it is necessary to go further and consider lifelong learning, which includes developmental learning, focused on embodiment as applied in developmental robotics and neurorobotics, and crossmodal learning that facilitates integrating multiple senses. PMID- 29342695 TI - Social-motor experience and perception-action learning bring efficiency to machines. AB - Lake et al. proposed a way to build machines that learn as fast as people do. This can be possible only if machines follow the human processes: the perception action loop. People perceive and act to understand new objects or to promote specific behavior to their partners. In return, the object/person provides information that induces another reaction, and so on. PMID- 29342696 TI - Autonomous development and learning in artificial intelligence and robotics: Scaling up deep learning to human-like learning. AB - Autonomous lifelong development and learning are fundamental capabilities of humans, differentiating them from current deep learning systems. However, other branches of artificial intelligence have designed crucial ingredients towards autonomous learning: curiosity and intrinsic motivation, social learning and natural interaction with peers, and embodiment. These mechanisms guide exploration and autonomous choice of goals, and integrating them with deep learning opens stimulating perspectives. PMID- 29342697 TI - The fork in the road. AB - Machines that learn and think like people should simulate how people really think in their everyday lives. The field of artificial intelligence originally traveled down two roads, one of which emphasized abstract, idealized, rational thinking and the other, which emphasized the emotionally charged and motivationally complex situations in which people often find themselves. The roads should have converged but never did. That's too bad. PMID- 29342698 TI - Avoiding frostbite: It helps to learn from others. AB - Machines that learn and think like people must be able to learn from others. Social learning speeds up the learning process and - in combination with language - is a gateway to abstract and unobservable information. Social learning also facilitates the accumulation of knowledge across generations, helping people and artificial intelligences learn things that no individual could learn in a lifetime. PMID- 29342699 TI - Digging deeper on "deep" learning: A computational ecology approach. AB - We propose an alternative approach to "deep" learning that is based on computational ecologies of structurally diverse artificial neural networks, and on dynamic associative memory responses to stimuli. Rather than focusing on massive computation of many different examples of a single situation, we opt for model-based learning and adaptive flexibility. Cross-fertilization of learning processes across multiple domains is the fundamental feature of human intelligence that must inform "new" artificial intelligence. PMID- 29342700 TI - Building brains that communicate like machines. AB - Reverse engineering human cognitive processes may improve artificial intelligence, but this approach implies we have little to learn regarding brains from human-engineered systems. On the contrary, engineered technologies of dynamic network communication have many features that highlight analogous, poorly understood, or ignored aspects of brain and cognitive function, and mechanisms fundamental to these technologies can be usefully investigated in brains. PMID- 29342701 TI - Building on prior knowledge without building it in. AB - Lake et al. propose that people rely on "start-up software," "causal models," and "intuitive theories" built using compositional representations to learn new tasks more efficiently than some deep neural network models. We highlight the many drawbacks of a commitment to compositional representations and describe our continuing effort to explore how the ability to build on prior knowledge and to learn new tasks efficiently could arise through learning in deep neural networks. PMID- 29342702 TI - Will human-like machines make human-like mistakes? AB - Although we agree with Lake et al.'s central argument, there are numerous flaws in the way people use causal models. Our models are often incorrect, resistant to correction, and applied inappropriately to new situations. These deficiencies are pervasive and have real-world consequences. Developers of machines with similar capacities should proceed with caution. PMID- 29342703 TI - The humanness of artificial non-normative personalities. AB - Technoscientific ambitions for perfecting human-like machines, by advancing state of-the-art neuromorphic architectures and cognitive computing, may end in ironic regret without pondering the humanness of fallible artificial non-normative personalities. Self-organizing artificial personalities individualize machine performance and identity through fuzzy conscientiousness, emotionality, extraversion/introversion, and other traits, rendering insights into technology assisted human evolution, robot ethology/pedagogy, and best practices against unwanted autonomous machine behavior. PMID- 29342704 TI - The importance of motivation and emotion for explaining human cognition. AB - Lake et al. discuss building blocks of human intelligence that are quite different from those of artificial intelligence. We argue that a theory of human intelligence has to incorporate human motivations and emotions. The interaction of motivation, emotion, and cognition is the real strength of human intelligence and distinguishes it from artificial intelligence. PMID- 29342705 TI - Building machines that adapt and compute like brains. AB - Building machines that learn and think like humans is essential not only for cognitive science, but also for computational neuroscience, whose ultimate goal is to understand how cognition is implemented in biological brains. A new cognitive computational neuroscience should build cognitive-level and neural level models, understand their relationships, and test both types of models with both brain and behavioral data. PMID- 29342706 TI - Benefits of embodiment. AB - Physical competence is acquired through animals' embodied interaction with their physical environments, and psychological competence is acquired through situated interaction with other agents. The acquired neural models essential to these competencies are implicit and permit more fluent and nuanced behavior than explicit models. The challenge is to understand how such models are acquired and used to control behavior. PMID- 29342707 TI - Human-like machines: Transparency and comprehensibility. AB - Artificial intelligence algorithms seek inspiration from human cognitive systems in areas where humans outperform machines. But on what level should algorithms try to approximate human cognition? We argue that human-like machines should be designed to make decisions in transparent and comprehensible ways, which can be achieved by accurately mirroring human cognitive processes. PMID- 29342708 TI - Ingredients of intelligence: From classic debates to an engineering roadmap. AB - We were encouraged by the broad enthusiasm for building machines that learn and think in more human-like ways. Many commentators saw our set of key ingredients as helpful, but there was disagreement regarding the origin and structure of those ingredients. Our response covers three main dimensions of this disagreement: nature versus nurture, coherent theories versus theory fragments, and symbolic versus sub-symbolic representations. These dimensions align with classic debates in artificial intelligence and cognitive science, although, rather than embracing these debates, we emphasize ways of moving beyond them. Several commentators saw our set of key ingredients as incomplete and offered a wide range of additions. We agree that these additional ingredients are important in the long run and discuss prospects for incorporating them. Finally, we consider some of the ethical questions raised regarding the research program as a whole. PMID- 29342709 TI - The argument for single-purpose robots. AB - The argument by Lake et al. to create more human-like robots is, first, implausible and, second, undesirable. It seems implausible to me that a robot might have friends, fall in love, read Foucault, prefer Scotch to Bourbon, and so on. It seems undesirable because we already have 7 billion people on earth and don't really need more. PMID- 29342710 TI - Intelligent machines and human minds. AB - The search for a deep, multileveled understanding of human intelligence is perhaps the grand challenge for 21st-century science, with broad implications for technology. The project of building machines that think like humans is central to meeting this challenge and critical to efforts to craft new technologies for human benefit. PMID- 29342711 TI - Horses for courses: When acceptability judgments are more suitable than structural priming (and vice versa). AB - Although structural priming is often the most suitable paradigm, it sometimes misses effects that are detected by more sensitive acceptability-judgment tasks, thus yielding incorrect conclusions. For example, Branigan & Pickering's (B&P's) claim that "syntactic representations do not contain semantic information" (sect. 2.1, para. 2), while supported by structural-priming studies of the passive, is undermined by an acceptability-judgment study of this construction. PMID- 29342712 TI - Microscopic and macroscopic approaches to the mental representations of second languages. AB - With a particular reference to second language (L2), we discuss (1) how structural priming can be used to tap into L2 representations and their relationships with first and target language representations; and (2) how complex networks additionally can be used to reveal the global and local patterning of L2 linguistic features and L2 developmental trajectories. PMID- 29342713 TI - Structural priming can inform syntactic analyses of partially grammaticalized constructions. AB - Branigan & Pickering (B&P) argue successfully that structural priming provides valuable information for developing psychologically plausible syntactic and semantic theories. I discuss how their approach can be used to help determine whether partially grammaticalized constructions that have undergone semantic change also have undergone syntactic reanalysis. I then consider cases in which evidence from priming cannot distinguish between competing syntactic analyses. PMID- 29342714 TI - The limitations of structural priming are not the limits of linguistic theory. AB - Structural priming is a useful technique for testing the predictions of linguistic theories, but one cannot conclude anything definitively about the shape of those theories from any particular methodology. PMID- 29342715 TI - Don't shoot the giant whose shoulders we are standing on. AB - Structural priming is a sufficient but not a necessary condition for proving the existence of representations. Absence of evidence is not evidence of absence. Cognitive science relies on the legitimacy of positing representations and processes without "proving" every component. Also, psycholinguistics relies on other methods, including acceptability judgments, to find the materials for priming experiments in the first place. PMID- 29342716 TI - If priming is graded rather than all-or-none, can reactivating abstract structures be the underlying mechanism? AB - In our commentary on Branigan & Pickering (B&P), we start by arguing that the authors implicitly adopt several assumptions, the consequence of which is to make further claims necessary and/or sufficient. Crucially, the authors assume the existence of discrete units at various levels of linguistic granularity that then must be operated upon by combinatorial mechanisms and rules (i.e., decomposition/recomposition). They further argue that structural priming provides a powerful tool to study abstract, structural representations. We provide evidence that priming effects in production are characterized better as graded than as all-or-none and that priming need not arise from a mechanism that (re)activates a shared but abstract internal structure. PMID- 29342717 TI - A usage-based cognitive linguistic (re-)interpretation of priming evidence. AB - Usage-based cognitive linguistic (UBCL) theories offer a unifying interpretation of the different (structural vs. [more] lexical) priming effects reported by Branigan & Pickering (B&P), and they provide an ideal basis for explaining contextual influences on priming. However, they also call into question B&P's claim that priming "provides evidence that is directly informative about mental representation" (sect. 1.5, para. 1). PMID- 29342718 TI - The logic of syntactic priming and acceptability judgments. AB - A critical flaw in Branigan & Pickering's (B&P's) advocacy of structural priming is the absence of a theory of priming. This undermines their claims about the value of priming as a methodology. In contrast, acceptability judgments enable clearer inferences about structure. It is important to engage thoroughly with the logic behind different structural diagnostics. PMID- 29342719 TI - Converging on a theory of language through multiple methods. AB - Assuming that linguistic representation has been studied only by linguists using grammaticality judgments, Branigan & Pickering (B&P) present structural priming as a novel alternative. We show that their assumptions are incorrect for cognitive-functional linguistics, exposing converging perspectives on form/meaning pairings between generativists and cognitive-functional linguists that we hope will spark the cross-disciplinary discussion necessary to produce a cognitively plausible model of linguistic representation. PMID- 29342720 TI - Don't forget the neurobiology: An experimental approach to linguistic representation. AB - Acceptability judgments are no longer acceptable as the holy grail for testing the nature of linguistic representations. Experimental and quantitative methods should be used to test theoretical claims in psycholinguistics. These methods should include not only behavior, but also the more recent possibilities to probe the neural codes for language-relevant representations. PMID- 29342721 TI - Acceptability judgments still matter: Deafness and documentation. AB - The target article's call to end reliance on acceptability judgments is premature. First, it restricts syntactic inquiry to cases were a semantically equivalent alternative is available. Second, priming studies require groups of participants who are linguistically homogenous and whose grammar is known to the researcher. These requirements would eliminate two major research areas: syntactic competence in d/Deaf individuals, and language documentation. (We follow the convention of using deaf to describe hearing levels, Deaf to describe cultural identity, and d/Deaf to include both. Our own work has focused on Deaf signers, but the same concerns could apply to other deaf populations.). PMID- 29342722 TI - Syntactic levels, lexicalism, and ellipsis: The jury is still out. AB - Structural priming data are sometimes compatible with several theoretical views, as shown here for three key theoretical claims. One reason is that prime sentences affect multiple representational levels driving syntactic choice. Additionally, priming is affected by further cognitive functions (e.g., memory). We therefore see priming as a useful tool for the investigation of linguistic representation but not the only tool. PMID- 29342723 TI - Structural priming supports grammatical networks. AB - As Branigan & Pickering (B&P) argue, structural priming has important implications for the theory of language structure, but these implications go beyond those suggested. Priming implies a network structure, so the grammar must be a network and so must sentence structure. Instead of phrase structure, the most promising model for syntactic structure is enriched dependency structure, as in Word Grammar. PMID- 29342724 TI - Action sequences instead of representational levels. AB - Despite enthusiastic agreement that experimental data are directly relevant for determining grammar architecture, we present one main objection to the conclusions that the authors draw from their results: The data are perfectly compatible - in fact, much more in line - with an alternative that does not rely on syntactic representations. Instead, it is processing actions whose activation for comprehension/production explains intra-/inter-speaker priming. PMID- 29342725 TI - What structural priming can and cannot reveal. AB - The nature of mental representations of linguistic expressions in relation to the time course from intention to articulation is a major issue. We discuss Branigan & Pickering's (B&P's) proposal to use structural priming to tap into this process. We show that their interpretation of their findings cannot be maintained. We reinterpret these results and suggest a revision of their conclusions. PMID- 29342726 TI - On the nature of structure in structural priming. AB - Like Branigan & Pickering (B&P), we agree that processing evidence is important for linguistic theorization; however, without much evidence of priming of hierarchical argument structure independent of linear ordering, the nature of "structure" in structural priming remains unclear. Consequently, it is an empirical question whether structural priming and acceptability judgments tap into cognitive processes of a similar nature. PMID- 29342727 TI - Structural priming, action planning, and grammar. AB - Structural priming is poorly understood and cannot inform accounts of grammar for two reasons. First, those who view performance as grammar + processing will always be able to attribute psycholinguistic data to processing rather than grammar. Second, structural priming may be simply an example of hysteresis effects in general action planning. If so, then priming offers no special insight into grammar. PMID- 29342728 TI - Moving beyond the priming of single-language sentences: A proposal for a comprehensive model to account for linguistic representation in bilinguals. AB - In their target article, Branigan & Pickering (B&P) briefly discuss bilingual language representation, focusing primarily on cross-language priming between single-language sentences. We follow up on this discussion by showing how structural priming drives real-life phenomena of bilingual language use beyond the priming of unilingual sentences and by arguing that B&P's account should be extended with a representation for language membership. PMID- 29342729 TI - Considering experimental and observational evidence of priming together, syntax doesn't look so autonomous. AB - We agree with Branigan & Pickering (B&P) that structural priming experiments should supplant grammaticality judgments for testing linguistic representation. However, B&P overlook a vast (corpus-)linguistic literature that converges with - but extends - the experimental findings. B&P conclude that syntax is functionally independent of the lexicon. We argue that a broader approach to priming reveals cracks in the facade of syntactic autonomy. PMID- 29342730 TI - Structural priming is most useful when the conclusions are statistically robust. AB - Branigan & Pickering (B&P) claim that the success of structural priming as a method should "end the current reliance on acceptability judgments." Structural priming is an interesting and useful phenomenon, but we are dubious that the effect is powerful enough to test many detailed claims about specific points of syntactic theory. PMID- 29342731 TI - Priming methods in semantics and pragmatics. AB - Structural priming is a powerful method to inform linguistic theories. We argue that this method extends nicely beyond syntax to theories of meaning. Priming, however, should still be seen as only one of the tools available for linguistic data collection. Specifically, because priming can occur at different, potentially conflicting levels, it cannot detect every aspect of linguistic representations. PMID- 29342732 TI - Can structural priming answer the important questions about language? AB - Structural priming makes a valuable contribution to psycholinguistics, but it taps into implicit memory representations and processes that may differ from what is deployed during online language processing. As a result, the strength of inductive inference regarding linguistic representation is rather limited. We question whether implicit memory for language can and should be equated with linguistic representation or with language processing. PMID- 29342733 TI - The syntax of priming. AB - Priming reflects the reactivation of processing routines that map strings of words onto semantic representations (and vice versa) without the mediation of syntactic structure, including the "flat structure" that Branigan & Pickering (B&P) propose. Key evidence for this claim comes from the possibility of priming relations involving subject-verb sequences, which are not syntactic constituents. PMID- 29342734 TI - Structural priming is not a Royal Road to representations. AB - Branigan & Pickering (B&P) propose that the structural priming paradigm is a Royal Road to linguistic representations of any kind, unobstructed by influences of psychological processes. In my view, however, they are too optimistic about the versatility of the paradigm and, more importantly, its ability to provide direct evidence about the nature of stored linguistic representations. PMID- 29342735 TI - Structural priming is a useful but imperfect technique for studying all linguistic representations, including those of pragmatics. AB - Structural priming is a useful tool for investigating linguistics representations. We argue that structural priming can be extended to the investigation of pragmatic representations such as Gricean enrichments. That is not to say priming is without its limitations, however. Interpreting a failure to observe priming may not be as simple as Branigan & Pickering (B&P) imply. PMID- 29342736 TI - The relationship between priming and linguistic representations is mediated by processing constraints. AB - Understanding the nature of linguistic representations undoubtedly will benefit from multiple types of evidence, including structural priming. Here, we argue that successfully gaining linguistic insights from structural priming requires us to better understand (1) the precise mappings between linguistic input and comprehenders' syntactic knowledge; and (2) the role of cognitive faculties such as memory and attention in structural priming. PMID- 29342737 TI - Priming is swell, but it's far from simple. AB - Clearly, structural priming is a valuable tool for probing linguistic representation. But we don't think that the existing results provide strong support for Branigan & Pickering's (B&P's) model, largely because the priming effects are more confusing and diverse than their theory would suggest. Fortunately, there are a number of other experimental tools available, and linguists are increasingly making use of them. PMID- 29342738 TI - Developmental psycholinguistics teaches us that we need multi-method, not single method, approaches to the study of linguistic representation. AB - In developmental psycholinguistics, we have, for many years, been generating and testing theories that propose both descriptions of adult representations and explanations of how those representations develop. We have learnt that restricting ourselves to any one methodology yields only incomplete data about the nature of linguistic representations. We argue that we need a multi-method approach to the study of representation. PMID- 29342739 TI - The malleability of linguistic representations poses a challenge to the priming based experimental approach. AB - Recent findings show that experience with a syntactic structure has long-term consequences for how that structure will be processed in the future, which suggests that linguistic representations are not static entities that can be probed reliably without alteration. Thus, leveraging the effect of previous exposure to a syntactic structure appears to be an inappropriate method for studying invariant properties of language. PMID- 29342740 TI - Setting the empirical record straight: Acceptability judgments appear to be reliable, robust, and replicable. AB - Branigan & Pickering (B&P) advocate the use of syntactic priming to investigate linguistic representations and argue that it overcomes several purported deficiencies of acceptability judgments. While we recognize the merit of drawing attention to a potentially underexplored experimental methodology in language science, we do not believe that the empirical evidence supports B&P's claims about acceptability judgments. We present the relevant evidence. PMID- 29342741 TI - Structural priming and the representation of language. AB - Structural priming offers a powerful method for experimentally investigating the mental representation of linguistic structure. We clarify the nature of our proposal, justify the versatility of priming, consider alternative approaches, and discuss how our specific account can be extended to new questions as part of an interdisciplinary programme integrating linguistics and psychology as part of the cognitive sciences of language. PMID- 29342742 TI - Public health interventions can increase objective and perceived control by supporting people to enact the choices they want to make. AB - "Low-agency" public health interventions do not rely on individuals using their personal resources to benefit. These help people enact the choices they wish to make and are likely to increase objective and perceived control. Lower-agency interventions have been criticised as constraining individual choice. Pepper & Nettle show that this is unlikely to be the case. PMID- 29342743 TI - The elusive constellations of poverty. AB - Pepper & Nettle describe possible processes underlying what they call a behavioral constellation of deprivation (BCD). Although we are certain about the application of evolutionary models to our understanding of poverty, we are less certain about the utility of behavioral constellations. The empirical record on poverty-related behaviors is much more divergent and broad than such constellations suggest. PMID- 29342744 TI - From perceived control to self-control, the importance of cognitive and emotional resources. AB - Pepper & Nettle (P&N) suggest that the poor present a "contextually appropriate response" to a perceived limited control and to a short life expectancy. We argue that differences in health, behavior, or impaired economic decisions are better explained by self-control. We discuss the implications of the differences between these perspectives and present supporting findings from two intervention studies with marginalized populations. PMID- 29342745 TI - The behavioural constellation of deprivation: Compelling framework, messy reality. AB - Pepper & Nettle's (P&N's) argument is compelling, but apparently contradictory data are easily found. Associations between socioeconomic status (SES) and substance abuse are sometimes positive, the poor are sometimes eager to educate their children, and perceptions of local mortality risk can be so distorted as to constitute an implausible basis for contextually appropriate responding. These anomalies highlight the need for more psychological work. PMID- 29342746 TI - The behavioral constellation of deprivation may be best understood as risk management. AB - Although the authors make a compelling case that early-life deprivation leads to present orientation, we believe that such behaviors may be better understood in terms of an underlying risk-management strategy, in which those who experience such deprivation are more risk-averse. The model we sketch accommodates the authors' present-orientation observations and further explains differences in risk preferences and social preferences. PMID- 29342747 TI - Developing the behavioural constellation of deprivation: Relationships, emotions, and not quite being in the present. AB - Although it is a welcome and timely idea, the behavioural constellation of deprivation (BCD) needs to explain how the development of personal control, trust, and perception of future risk is mediated through relationships with parents. Further, prioritising the present over the future may not be the essence of this constellation; perhaps not quite being, either in the present or in the future, is a better depiction. PMID- 29342748 TI - Interpreting risky behavior as a contextually appropriate response: Significance and policy implications beyond socioeconomic status. AB - The significance of the contextually appropriate response perspective (CARP) can be judged, in part, by its potential to stimulate new research and guide public policy. To illustrate this potential, I move beyond socioeconomic status differences in behavior and apply CARP to broader, policy-relevant issues in criminology. In this area, CARP sheds new light on some old problems. PMID- 29342749 TI - Evolutionary approaches to deprivation transform the ethics of policy making. AB - When designing public policies, decision makers often rely on their own behavioral preferences. Pepper & Nettle's (P&N's) theory suggests that these preferences are unlikely to be appropriate when applied to a different environment (e.g., a low-income environment with fewer career opportunities). This theory has profound implications for the design and ethics of public policies. PMID- 29342750 TI - The physiological constellation of deprivation: Immunological strategies and health outcomes. AB - Physiology and behavior are best thought of as two aspects of the same biological process, shaped simultaneously by natural selection. Like behavioral strategies, ecological conditions may affect physiological strategies, leading to changes in immunity and hormonal regulation. These alternate strategies help explain the health correlations of deprivation and provide additional pathways for feedback from early-life experiences. PMID- 29342751 TI - Divergent life histories and other ecological adaptations: Examples of social class differences in attention, cognition, and attunement to others. AB - Many behavioral and psychological effects of socioeconomic status (SES), beyond those presented by Pepper & Nettle cannot be adequately explained by life-history theory. We review such effects and reflect on the corresponding ecological affordances and constraints of low- versus high-SES environments, suggesting that several ecology-specific adaptations, apart from life-history strategies, are responsible for the behavioral and psychological effects of SES. PMID- 29342752 TI - Uncertainty about future payoffs makes impatience rational. AB - Uncertainty (i.e., variable payoffs with unknown probabilities) brings together a number of features of the authors' argument. It leads to present bias, even for completely rational agents with time-consistent preferences. As an evolutionary product of Pleistocene climate instability, humans possess broad adaptations to environmental uncertainty, giving rise to key features of the behavioral constellation of deprivation (BCD). PMID- 29342753 TI - Beyond personal control: The role of developing self-control abilities in the behavioral constellation of deprivation. AB - We agree with Pepper & Nettle that personal control is important in understanding people's willingness to engage in future-oriented behavior. However, this does not imply that self-control abilities play no role, for self-control abilities do influence whether individuals engage in future-oriented behavior. Personal control may also shape the development of self-control abilities, so contrasting the two may be a false dichotomy. PMID- 29342754 TI - Toward a balanced view of stress-adapted cognition. AB - Pepper & Nettle's paper exemplifies an emerging resistance against an exclusive focus on deficits in people who come from harsh environments. We extend their model by arguing for a perspective that includes not only contextually appropriate responses but also strengths - that is, enhanced mental skills and abilities. Such a well-rounded approach can be leveraged in education, jobs, and interventions. PMID- 29342755 TI - What about the behavioral constellation of advantage? AB - Many short-sighted behaviors are more common among poorer people. These behaviors are neither evolutionarily nor historically unusual and have strong contemporary encouragement. The bigger puzzle is their lower frequency among the affluent. The behaviors also have clear cultural and normative aspects that limit the usefulness of strictly individualist theories. PMID- 29342756 TI - Predictability or controllability: Which matters more for the BCD? AB - Pepper & Nettle's theory of the behavioral constellation of deprivation (BCD) would benefit from teasing apart the conceptually distinct - although related - constructs of predictability and control. Our commentary draws from prior research conducted in the learning domain to demonstrate that predictability moderates the effects of control and independently exerts a powerful influence on outcomes relevant to the BCD. PMID- 29342757 TI - Socioeconomic status, unpredictability, and different perceptions of the same risk. AB - In this commentary, we address three questions: (1) How might outcomes be affected by the variation in the level of deprivation, rather than the average level of deprivation? (2) Could there be differences in the subjective perception of the same risk as either intrinsic or extrinsic, depending on people's socioeconomic status (SES)? (3) What other psychological mechanisms might play a role in influencing the psychology and behavior of people from deprived backgrounds? PMID- 29342758 TI - When does deprivation motivate future-oriented thinking? The case of climate change. AB - Pepper & Nettle overstate cross-domain evidence of present-oriented thinking among lower-socioeconomic-status (SES) groups and overlook key social and contextual drivers of temporal decision making. We consider psychological research on climate change - a quintessential intertemporal problem that implicates inequities and extrinsic mortality risk - documenting more future oriented thinking among low- compared to high-SES groups. PMID- 29342759 TI - Loss of control is not necessary to induce behavioral consequences of deprivation: The case of religious fasting during Ramadan. AB - Pepper & Nettle argue that the more present-oriented behavior associated with a low socioeconomic status is an adaptive response to having relatively little control over the future. However, a study of fasters during Ramadan shows that self-imposed deprivation, which carries no implications regarding the ability to realize deferred rewards, is associated with loss and risk aversion. PMID- 29342760 TI - The uncontrollable nature of early learning experiences. AB - Early learning experiences shape the development of the behavioral constellation of deprivation (BCD) proposed by Pepper & Nettle (P&N). There is considerable variability in early learning experiences across diverse socioeconomic status (SES) backgrounds, particularly when it comes to language. Here, we discuss how early learning experiences are beyond the control of the individual and subsequently contribute to behaviors in P&N's constellation. PMID- 29342761 TI - The "appropriate" response to deprivation: Evolutionary and ethical dimensions. AB - Pepper & Nettle use an evolutionary framework to argue that "temporal discounting" is an appropriate response to low socioeconomic status (SES), or deprivation. We suggest some conceptual refinements to their "appropriate response" perspective, with the hope that it usefully informs future research on and public policy responses to the relationship between deprivation and temporal discounting. PMID- 29342762 TI - Both collection risk and waiting costs give rise to the behavioral constellation of deprivation. AB - Pepper & Nettle explain the behavioral constellation of deprivation (BCD) in terms of differences in collection risk (i.e., the probability of collecting a reward after some delay) between high- and low-socioeconomic-status (SES) populations. We argue that a proper explanation should also include the costs of waiting per se, which are paid even when the benefits are guaranteed. PMID- 29342763 TI - Relative state, social comparison reactions, and the behavioral constellation of deprivation. AB - Pepper & Nettle compellingly synthesize evidence indicating that temporal discounting is a functional, adaptive response to deprivation. In this commentary, we underscore the importance of the psychology of relative state, which is an index of relative competitive (dis)advantage. We then highlight two proximate emotional social comparison reactions linked with relative state - personal relative deprivation and envy - that may play an important role in the deprivation-discounting link. PMID- 29342764 TI - Cultural consonance, deprivation, and psychological responses for niche construction. AB - Cultural consonance is a measure of culturally encoded goals relevant to psychological, behavioral, and health responses to deprivation. Similar to extrinsic mortality, low cultural consonance and an associated inability to predict adaptive outcomes may activate impulsivity, delay discounting, and reward seeking. Low cultural consonance could promote "fast life history" in low-quality environments and motivate cultural niche construction for local adaptation. PMID- 29342765 TI - Stuff goes wrong, so act now. AB - Pepper & Nettle make an ambitious and compelling attempt to isolate a common cause of what they call the behavioral constellation of deprivation. We agree with the authors that limited control can indeed help explain part of the difference in observed present-oriented behavior between the poor and the rich. However, we suggest that mortality risk is not the primary mechanism leading to this apparent impatience. PMID- 29342766 TI - Deprived, but not depraved: Prosocial behavior is an adaptive response to lower socioeconomic status. AB - Individuals of lower socioeconomic status (SES) display increased attentiveness to others and greater prosocial behavior compared to individuals of higher SES. We situate these effects within Pepper & Nettle's contextually appropriate response framework of SES. We argue that increased prosocial behavior is a contextually adaptive response for lower-SES individuals that serves to increase control over their more threatening social environments. PMID- 29342767 TI - It's not just about the future: The present payoffs to behaviour vary in degree and kind between the rich and the poor. AB - Pepper & Nettle offer a nuanced and humane view on poverty that should be required reading for policy makers, particularly those interested in "behaviour change" policy. We suggest, however, that the emphasis on "future-discounting" in this paper downplays the importance of differences in the payoffs to behaviours in the present and how these payoffs may be realised in different currencies. PMID- 29342768 TI - Intertemporal impulsivity can also arise from persistent failure of long-term plans. AB - We suggest that steep intertemporal discounting in individuals of low socioeconomic status (SES) may arise as a rational metacognitive adaptation to experiencing planning and control failures in long-term plans. Low SES individuals' plans fail more frequently because they operate close to budgetary boundaries, in turn because they consistently operate with limited budgets of money, status, trust, or other forms of social utility. PMID- 29342769 TI - The link between deprivation and its behavioural constellation is confounded by genetic factors. AB - Most research cited throughout Pepper & Nettle's (P&N's) target article is correlational and suffers from a serious genetic confound that renders it of little evidentiary value. Of correlational findings that are not confounded, P&N ignore examples that contradict their model. Further, P&N's claim that evolutionary models explaining between-species differences in behaviour can be used to understand that corresponding individual differences lack any evidence. PMID- 29342770 TI - Health behaviour, extrinsic risks, and the exceptions to the rule. AB - Pepper & Nettle make a compelling case for how evolutionary thinking can help explain behaviours that cluster with deprivation. The role of extrinsic mortality risk in driving behaviour is probably important, but strong evidence is still lacking. By thinking carefully about behaviours seemingly at odds with an evolutionary life history perspective, we can gain important insights that will help refine theory. PMID- 29342771 TI - Intergenerational capital flows are central to fitness dynamics and adaptive evolution in humans. AB - Human fitness dynamics are uniquely and profoundly governed by the flow of capital to subsequent generations. Low socioeconomic status individuals may possess limited capacity to direct capital to descendants and may respond to such constraints adaptively or maladaptively. Mitigation of capital constraints may provide practicable routes to alleviation of the behavioural constellation of deprivation. PMID- 29342772 TI - Epigenetic-based hormesis and age-dependent altruism: Additions to the behavioural constellation of deprivation. AB - We support Pepper and Nettle's (P&N's) hypothesised adaptive responses to deprivation. However, we argue that adaptive responses to stress shift with age. Specifically, present-oriented behaviours are adaptive for young people (e.g., in terms of mating and reproduction) but costly for older people in deprived communities who would benefit from investing in grandchildren. Epigenetic mechanisms may be responsible for age-related tactical shifts. PMID- 29342773 TI - Strengths, altered investment, risk management, and other elaborations on the behavioural constellation of deprivation. AB - We are grateful to have received so many insightful commentaries from interested colleagues regarding our proposed behavioural constellation of deprivation (BCD) and our thoughts on its causes and consequences. In this response article, we offer some clarifications regarding our perspective and tackle some common misperceptions, including, for example, assumptions that the BCD is adaptive and that it should include all behaviours that vary with socioeconomic status. We then welcome some excellent proposals for extensions and modifications of our ideas, such as the conceptualisation of the BCD as a risk-management strategy and the calls for a greater focus on strengths and differential investment rather than deficits and disinvestment. Finally, we highlight some insightful explorations of the implications of our ideas for ethics, policy, and practice. PMID- 29342774 TI - A social dimension to enjoyment of negative emotion in art reception. AB - The proposed model overlooks the contribution of a relational/prosocial dimension to the enjoyment of negative emotion in art reception. Negative experiences have a unique capacity to build social bonds and may also increase motivation to "connect" with the artist. This affiliative motivation ensures that people experience an artwork as more emotional, more intense, more interesting, and ultimately more rewarding. PMID- 29342775 TI - Artistic misunderstandings: The emotional significance of historical learning in the arts. AB - The Distancing-Embracing model does not have the conceptual resources to explain artistic misunderstandings and the emotional consequences of historical learning in the arts. Specifically, it suggests implausible predictions about emotional distancing caused by art schemata (e.g., misunderstandings of artistic intentions and contexts). These problems show the need for further inquiries into how historical contextualization modulates negative emotions in the arts. PMID- 29342776 TI - Reconciling an underlying contradiction in the Distancing-Embracing model. AB - The Distancing-Embracing model proposes that negative emotions embedded in literary works can be rewarding. This is consistent with a holistic ontology in the German Romantic tradition. However, the application of cognitive psychology to explain experiences of aesthetic pleasure is problematic because it is founded on a mechanistic Enlightenment epistemology. The appreciation of negative emotions requires cognitive elaboration and closure, whereas hedonistic reward is contingent on the reader's needs, in the moment, for pleasure or distraction. PMID- 29342777 TI - Positivity versus negativity is a matter of timing. AB - "Negative" emotions are never purely negative. They attract attention at the very least and often stay attractive enough to make rehearsing them an addictive activity. As the authors point out, they also counteract a relentless tendency for positive emotions to become boring. Analysis in terms of reward suggests why this tendency occurs and how symbiosis with negative emotions may arise, in art and in life. PMID- 29342778 TI - Considering the filmmaker: Intensified continuity, narrative structure, and the Distancing-Embracing model. AB - Menninghaus et al. pose two open-ended questions: To what extent do formal elements of art elicit negative affect, and do artists try to elicit this response in a theory-based or intuitive manner? For popular movies, we argue that the consideration of their construction is prior to the consideration of the experience that they evoke. PMID- 29342779 TI - Emotional granularity and the musical enjoyment of sadness itself. AB - We contest the claim that musically induced sadness cannot be enjoyable in itself. This possibility is supported by closer attention to a musical experience as well as cases of affective reversal, such as the "hedonic flip" of painful feelings. We propose that the affective reversal of sadness in music is due to the high granularity of musically induced emotion. PMID- 29342780 TI - The urge to judge: Why the judgmental attitude has anything to do with the aesthetic enjoyment of negative emotions. AB - Based on arguments from both philosophical and empirical aesthetics, we hereby propose that the enjoyment of negative emotions in art and fiction is distinct from the immediate pleasure deriving from sensory features, because it requires a conscious, intentional attitude toward the object. This attitude is linked with the compelling goal of providing a judgment of liking, beauty, perfection, or similar. PMID- 29342781 TI - Orange is the new aesthetic. AB - The Distancing-Embracing model proposes that negative emotions are constitutive of aesthetic experiences. This move is welcome and adds depth to empirical aesthetics. However, the model's emphasis on temporality challenges how best to think of static art forms. I suggest that "decisive" and "distilled" moments dilate time in the viewer's mind and might allow the model to accommodate photography and painting. PMID- 29342782 TI - Distancing, not embracing, the Distancing-Embracing model of art reception. AB - Despite denials in the target article, the Distancing-Embracing model appeals to compensatory ideas in explaining the appeal of artworks that elicit negative affect. The model also appeals to the deflationary effects of psychological distancing. Having pointed to the famous rejection in the 1960s of the view that aesthetic experience involves psychological distancing, I suggest that "distance" functions here as a weak metaphor that cannot sustain the explanatory burden the theory demands of it. PMID- 29342783 TI - Boredom in art. AB - In the light of recent findings on the nature of boredom, I argue that boredom is a potentially useful emotion in art reception and show how the Distancing Embracing model can be applied to boredom. PMID- 29342784 TI - You are not alone - Social sharing as a necessary addition to the Embracing factor. AB - I argue that the Embracing factor cannot be adequately conceptualized without taking into account the regulatory power of the social sharing of emotions. Humans tend to share their negative emotions with close others, and they benefit from it. I outline how this mechanism works in art reception by regulating and transforming negative emotions into positive experiences. PMID- 29342785 TI - Individual differences in embracing negatively valenced art: The roles of openness and sensation seeking. AB - We elaborate on the role of individual differences in the processing mechanisms outlined by the Distancing-Embracing model. The role of openness is apparent in appreciating meaning-making art that elicits interest, feeling moved, and mixed emotions. The influence of sensation seeking is likely to manifest in thrill chasing art that draws on the arousing interplay of positive and negative emotions. PMID- 29342786 TI - Fiction as a bridge to action. AB - We propose an extension of the Distancing-Embracing model to the use of stories for prosocial ends. Specifically, audiences may find stories of individuals in need too emotionally overwhelming. Audiences may attempt to regulate or reduce negative emotions, which can reduce empathy and willingness to help. Through distancing, fictionalized accounts may counteract this tendency and thus increase prosocial behavior. PMID- 29342787 TI - Empathy as a guide for understanding the balancing of Distancing-Embracing with negative art. AB - We connect the Distancing-Embracing model to theoretical and empirical evidence regarding empathy, which raises questions about the ordering and modulation of distancing in particular. Namely, distancing may not be a binary, continuously on/off process. Rather we suggest that changes in distancing as actualized via the relation between the individual and art (e.g., through empathy) might be a useful avenue for further consideration. PMID- 29342788 TI - Live theatre as exception and test case for experiencing negative emotions in art. AB - Distancing and then embracing constitutes a useful way of thinking about the paradox of aesthetic pleasure. However, the model does not account for live theatre. When live actors perform behaviors perceptually close to real life and possibly really experienced by the actors, audiences may experience autonomic reactions, with less distance, or may have to distance post experiencing/embracing their emotions. PMID- 29342789 TI - Art enhances meaning by stimulating integrative complexity and aesthetic interest. AB - Menninghaus et al. portrayed meaning in art as a vehicle for transforming negative emotions into pleasure. Although it is intuitively appealing that meaningful experiences should feel good, meaningfulness does not necessarily entail pleasure or positive emotions. Whereas easily comprehended art may elicit pleasure, meaningfulness is more closely tied to challenge and interest than to pleasure. PMID- 29342790 TI - Context matters: How macroeconomic forces may alter the reception of negative emotions in art. AB - Menninghaus et al. offer a comprehensive model to explain why people pursue darker emotions in art, but we believe they underplay the considerable role of situational factors in driving these preferences. In particular, changing mood states are likely to shape artistic preferences, in large part because positive mood states act as a protective buffer against otherwise aversive experiences. PMID- 29342791 TI - "Negative emotions" live in stories, not in the hearts of readers who enjoy them. AB - The commendably ambitious project by Menninghaus et al. fails because its main connective tissue - "negative emotions" - is beyond the grasp of the authors' largely literary approach. The critique focuses on their treatment of the Paradox of Fiction, the neglect of the biological, adaptive nature of emotions, and the absence of convincing empirical support for key aspects of the proposed model. PMID- 29342792 TI - What is art and how does it differ from aesthetics? AB - Art objects differ from other objects because they are intentionally created to embody a producer's (i.e., artist's) expression. Hence, art objects are social objects whose appeal and value are determined largely by the strategic interaction between the artist and the audience. I discuss several aspects of how strategic interaction can affect an art object's perceived value and aesthetic appeal. PMID- 29342793 TI - The paradox of tragedy and emotional response to simulation. AB - The insightful analysis of Menninghaus et al. could be deepened and rendered more systematic by recognizing that our emotional enjoyment of tragedy - and our response to fiction more generally - are versions of what happens with simulation. They derive from the operation and evolutionary function of simulation. Once we understand emotion in simulation, we largely understand emotion in tragedy (and fiction). PMID- 29342794 TI - The enjoyment of negative emotions in the experience of magic. AB - Theatrical magic is designed to elicit negative emotions such as feelings of vulnerability, loss of control, apprehension, fear, confusion, and bafflement. This commentary suggests that the Distancing-Embracing model can help us understand how the experience of magic can be aesthetically pleasurable, not despite, rather thanks to, some of the strong negative emotions it provokes. PMID- 29342795 TI - Psychological models of art reception must be empirically grounded. AB - We commend Menninghaus et al. for tackling the role of negative emotions in art reception. However, their model suffers from shortcomings that reduce its applicability to empirical studies of the arts: poor use of evidence, lack of integration with other models, and limited derivation of testable hypotheses. We argue that theories about art experiences should be based on empirical evidence. PMID- 29342796 TI - Art and fiction are signals with indeterminate truth values. AB - Menninghaus et al. distinguish art from fiction, but no current arguments or data suggest that the concept of art can be meaningfully circumscribed. This is a problem for aesthetic psychology. I sketch a solution by rejecting the distinction: Unlike most animal communication, in which signals are either true or false, art and fiction consist of signals without determinate truth values. PMID- 29342797 TI - Does art expertise facilitate distancing? AB - With respect to the Distancing-Embracing model, we discuss whether experts with well-developed and highly accessible schemata that lend themselves to distancing have initial affective reactions similar to those of novices, who lack access to well-developed distancing mechanisms, and whether differences between experts' and novices' responses are apparent only after distancing mechanisms have had a chance to do their work. We revisit findings from Leder et al. (2014) and discuss the role of mixed emotions and fluency. PMID- 29342798 TI - Art as emotional exploration. AB - The Roman poet Horace said poetry gives pleasure and instructs. A more informative theory is that poetry and art, in general, are less about pleasure than about exploration of emotions. Literary authors concentrate on negative emotions, seemingly to try and understand them. In two studies, reading literary art enabled the transformation of selfhood, not by being instructed but by people changing in their own ways. PMID- 29342799 TI - Being moved is a positive emotion, and emotions should not be equated with their vernacular labels. AB - As evidence for the second process of the Embracing factor, the target article characterizes being moved as a mixed emotion linked to sadness through metonymy. We question these characterizations and argue that emotions should not be equated with their vernacular labels. PMID- 29342800 TI - Genre scripts and appreciation of negative emotion in the reception of film. AB - The Distancing-Embracing model reserves a role for genre scripts in the hedonic valuation of negative emotion in art. Genre scripts, as defined in the target article, leave higher-level recipient intuitions out of scope. We argue that, in film genre scripts, lower-level stylistic features lend access to more complex conceptual knowledge, including pragmatic principles. The argument implies a consideration of the communicative dimension of aesthetic works, which could strengthen both factors of the Distancing-Embracing model. PMID- 29342801 TI - Parental response to baby cry involves brain circuits for negative emotion Distancing-Embracing. AB - The "art form" of parent-infant bonding critically involves baby conveying negative emotions - literally compelling parents to respond and provide care. Current research on the brain basis of parenting is combining brain imaging with social, cognitive, and behavioral analyses to understand how parental brain circuits regulate thoughts and behavior in mental health, risk, and resilience. Understanding the parental brain may contribute to solving the long-standing paradox of self-sought hedonic exposure to negative emotions in art reception. PMID- 29342802 TI - Art reception as an interoceptive embodied predictive experience. AB - In the Distancing-Embracing model, an explanation is proposed for the apparent paradox that is the enjoyment of negative emotional states in art reception. Here, we argue for the advantages of grounding the psychological dynamics described in the model in established and empirically testable frameworks of brain functioning by thinking of art reception as an embodied experience guided by predictive coding. PMID- 29342803 TI - Explaining the enjoyment of negative emotions evoked by the arts: The need to consider empathy and other underlying mechanisms of emotion induction. AB - Any model aiming to explain the enjoyment of negative emotions in the context of the arts should consider how works of art are able to induce emotional responses in the first place. For instance, research on empathy and the arts suggests that the psychological processes that mediate the enjoyment of sadness and horror may be fundamentally different. PMID- 29342804 TI - Tuning in to art: A predictive processing account of negative emotion in art. AB - We use the example of art-derived solace to discuss a broader mechanism by which negative affect is instrumental in creating positive appreciation of artworks. Based on the theory of predictive processing, we argue that increasing attunement or reduction of prediction errors, which implies increasing validation of the agents (models), is experienced as positive, even if the artwork's content is negative. PMID- 29342805 TI - Embracing nonfiction: How to extend the Distancing-Embracing model. AB - The Distancing factor of Menninghaus et al.'s model includes schemas that remind consumers that the representation is fictional. Although they claim that these schemas are crucial to the functioning of the Embracing factor of the model, we argue that consumers can have similar responses to nonfictional representations. We urge the authors to expand their model to include such cases. PMID- 29342806 TI - Negative emotions in art reception: Refining theoretical assumptions and adding variables to the Distancing-Embracing model. AB - While covering all commentaries, our response specifically focuses on the following issues: How can the hypothesis of emotional distancing (qua art framing) be compatible with stipulating high levels of felt negative emotions in art reception? Which concept of altogether pleasurable mixed emotions does our model involve? Can mechanisms of predictive coding, social sharing, and immersion enhance the power of our model? PMID- 29342807 TI - Beyond aerodigestion: Exaptation of feeding-related mouth movements for social communication in human and nonhuman primates. AB - Three arguments are advanced from human and nonhuman primate infancy research for the exaptation of ingestive mouth movements (tongue protrusion and lip smacking) for the purposes of social communication: their relation to affiliative behaviours, their sensitivity to social context, and their role in social development. Although these behaviours may have an aerodigestive function, such an account of their occurrence is only partial. PMID- 29342808 TI - Philosopher's disease and its antidote: Perspectives from prenatal behavior and contagious yawning and laughing. AB - Accounts of behavior, including imitation, often suffer from philosopher's disease: the unnecessary, inappropriate, theoretically driven explanation of behavior in terms of cognition, rationality, and consciousness. Embryos are perversely unphilosophical and unpsychological, starting to move before they receive sensory input. Postnatal contagious yawning and laughing indicate that pseudo-imitative behavior can occur without conscious intent or other higher order cognitive process. PMID- 29342809 TI - Beyond sensorimotor imitation in the neonate: Mentalization psychotherapy in adulthood. AB - Despite the persuasiveness of Keven & Akins' (K&A) review, we argue that mentalization, or the ability to interpret the mental states of oneself and others, is required to construct the neonate mind, going far beyond sensorimotor imitation. This concept, informed by certain psychoanalytic and attachment theories, has produced a form of therapy called mentalization-based psychotherapy, which aims to improve emotional regulation. Our aim here is to shed light on a form of neonatal imitation that goes beyond sensorimotor imitation. PMID- 29342810 TI - "It takes two to know one" - Tongue protrusion-retraction is only one small facet of early intersubjectivity. AB - Tongue protrusion-retraction is critical to early nutrition but is also a gustatory-olfactory aspect of early infant social behaviour that is, in part, reliant on pre-natal exposure and learning. Most early development is necessarily dyadic and intrinsically associated with other aspects of social functioning. PMID- 29342811 TI - Spontaneous communication and infant imitation. AB - Infant behavior is viewed in a social-communicative context centered on the phenomenon of spontaneous communication. Symbolic communication is learned and culturally structured, intentional, consists of symbols, and is propositional in content. In contrast, spontaneous communication is innate in both its sending (display) and receiving (preattunement) aspects, non-intentional, consists of signs, and is non-propositional or emotional in content. It underlies infant imitation, interactional synchrony, primary intersubjectivity, emotional empathy, and mirror neurons; and it is associated with oxytocin. PMID- 29342812 TI - A major blow to primate neonatal imitation and mirror neuron theory. AB - Keven & Akins' (K&A's) compelling new hypothesis explaining the developmental and neural basis of neonatal tongue protrusion has important implications for current understanding of primate imitation and the explanatory value of mirror neurons. If correct, this hypothesis eliminates a major source of evidence for neonatal imitation. I explore the implications this has for mirror neuron research and the arguments building upon them. PMID- 29342813 TI - Mommy or me? Who is the agent in a sense of agency in infant orofacial stereotypies? AB - That neonates imitate is an assertion that lacks supporting evidence. Orofacial stereotypies are critical to optimizing food rejection. Matching of tongue protrusion is not imitation, but a manifestation of the infant's arousal by the modeler's exhibition of the same behavior. The support for the nativist assertion that newborn infants imitate is not compelling, and we should proceed on the assumption that they do not. PMID- 29342814 TI - Do innate stereotypies serve as a basis for swallowing and learned speech movements? AB - Keven & Akins suggest that innate stereotypies like TP/R may participate in the acquisition of tongue control. This commentary examines this claim in the context of speech motor learning and biomechanics, proposing that stereotypies could provide a basis for both swallowing and speech movements, and provides biomechanical simulation results to supplement neurological evidence for similarities between the two behaviors. PMID- 29342815 TI - Infant orofacial movements: Inputs, if not outputs, of early imitative ability? AB - According to Keven & Akins (K&A), infant orofacial gestures may not reflect imitative responses. Here, we emphasise that these actions nonetheless represent a significant feature of the infant's early sensorimotor experience, and therefore may play a key role in the development of imitative capacities. We discuss how the ideas proposed in the target article could contribute substantially to experiential accounts of imitation. PMID- 29342816 TI - Animal studies help clarify misunderstandings about neonatal imitation. AB - Empirical studies are incompatible with the proposal that neonatal imitation is arousal driven or declining with age. Nonhuman primate studies reveal a functioning brain mirror system from birth, developmental continuity in imitation and later sociability, and the malleability of neonatal imitation, shaped by the early environment. A narrow focus on arousal effects and reflexes may grossly underestimate neonatal capacities. PMID- 29342817 TI - Beyond neonatal imitation: Aerodigestive stereotypies, speech development, and social interaction in the extended perinatal period. AB - In our target article, we argued that the positive results of neonatal imitation are likely to be by-products of normal aerodigestive development. Our hypothesis elicited various responses on the role of social interaction in infancy, the methodological issues about imitation experiments, and the relation between the aerodigestive theory and the development of speech. Here we respond to the commentaries. PMID- 29342818 TI - The functional and developmental role of imitation in the (a)typical brain. AB - Keven & Akins (K&A) propose a biologically plausible view of neonatal imitation based on the analysis of sensorimotor development. Here, we consider imitation in the general context of motor cognition, taking examples from both typical and atypical development. Specifically, we will discuss the functional role of imitation, its multi-level nature, and its anomalous features in autism. PMID- 29342819 TI - When dyadic interaction is the context: Mimicry behaviors on the origin of imitation. AB - Keven & Akins (K&A) redefine some of the neonatal imitation (NI) behaviors as developmental stereotypes. From a neuroconstructivist framework, those early gestures are also far from being considered as imitative behaviors. The cognitive substrate of imitation requires an interactive context to develop. Prior to intentional imitation, the dyad shows mimicry behaviors, which are automatic, but do not fade through development. PMID- 29342820 TI - There is no compelling evidence that human neonates imitate. AB - Keven & Akins (K&A) propose that neonatal "imitation" is a function of newborns' spontaneous oral stereotypies and should be viewed within the context of normal aerodigestive development. Their proposal is in line with the result of our recent large longitudinal study that found no compelling evidence for neonatal imitation. Together, these works prompt reconsideration of the developmental origin of genuine imitation. PMID- 29342821 TI - Multisensory control of ingestive movements and the myth of food addiction in obesity. AB - Some individuals have a neurogenetic vulnerability to developing strong facilitation of ingestive movements by learned configurations of biosocial stimuli. Condemning food as addictive is mere polemic, ignoring the contextualised sensory control of the mastication of each mouthful. To beat obesity, the least fattening of widely recognised eating patterns needs to be measured and supported. PMID- 29342822 TI - The case against newborn imitation grows stronger. AB - The claim that human newborns imitate is widely accepted and influential. Yet reliable evidence that newborns match modeled behaviors is limited, and there is no empirically based explanation of how the knowledge that imitation requires could develop before birth. In their target article, Keven & Akins (K&A) contribute important new evidence to an alternative account of newborns' matching that challenges the newborn imitation claim. PMID- 29342823 TI - Elements of a comprehensive theory of infant imitation. AB - Imitation is central to human development. Imitation involves mapping between the perception and production of actions. Imitation after delays implicates preverbal memory. Imitation of people informs us about infants' processing of social events. A comprehensive theory needs to account for the origins, mechanisms, and functions of imitation. Neonatal imitation illuminates how the initial state engenders and supports rapid social learning. PMID- 29342824 TI - Ecological validity, embodiment, and killjoy explanations in developmental psychology. AB - Keven & Akins (K&A) present a compelling alternative to the case for neonatal orofacial imitation, offered by Meltzoff and Moore. However, they provide little concerning what lessons their proposal has to offer developmental psychology more generally. I suggest three candidates and elaborate on how they raise outstanding methodological and philosophical questions for the approach taken in the target article. PMID- 29342825 TI - "What" matters more than "Why" - Neonatal behaviors initiate social responses. AB - Newborns are born into a social environment that dynamically responds to them. Newborn behaviors may not have explicit social intentions but will nonetheless affect the environment. Parents contingently respond to their child, enabling newborns to learn about the consequences of their behaviors and encouraging the behavior itself. Consequently, newborn behaviors may serve both biological and social-cognitive purposes during development. PMID- 29342826 TI - An unsettled debate: Key empirical and theoretical questions are still open. AB - Debates about neonatal imitation remain more open than Keven & Akins (K&A) imply. K&A do not recognize the primacy of the question concerning differential imitation and the links between experimental designs and more or less plausible theoretical assumptions. Moreover, they do not acknowledge previous theorizing on spontaneous behavior, the explanatory power of entrainment, and subtle connections with social cognition. PMID- 29342827 TI - Does early motor development contribute to speech perception? AB - At the end of the target article, Keven & Akins (K&A) put forward a challenge to the developmental psychology community to consider the development of complex psychological processes - in particular, intermodal infant perception - across different levels of analysis. We take up that challenge and consider the possibility that early emerging stereotypies might help explain the foundations of the link between speech perception and speech production. PMID- 29342828 TI - Turning the tide: A plea for cognitively lean interpretations of infant behaviour. AB - Keven & Akins (K&A) revisit the controversial subject of neonatal imitation through analysing the physiological foundations of neonatal spontaneous behaviour. Consequently, they regard imitative capacities in neonates as unlikely. We welcome this approach as an overdue encouragement to refuse cognitively rich interpretations as far as cognitively lean interpretations are conceivable, and apply this rationale to other phenomena in early childhood development. PMID- 29342829 TI - July 2017 Editor-in-Chief Letter. PMID- 29342830 TI - Methods to Improve Osseointegration of Dental Implants in Low Quality (Type-IV) Bone: An Overview. AB - Nowadays, dental implants have become more common treatment for replacing missing teeth and aim to improve chewing efficiency, physical health, and esthetics. The favorable clinical performance of dental implants has been attributed to their firm osseointegration, as introduced by Branemark in 1965. Although the survival rate of dental implants over a 10-year observation has been reported to be higher than 90% in totally edentulous jaws, the clinical outcome of implant treatment is challenged in compromised (bone) conditions, as are frequently present in elderly people. The biomechanical characteristics of bone in aged patients do not offer proper stability to implants, being similar to type-IV bone (Lekholm & Zarb classification), in which a decreased clinical fixation of implants has been clearly demonstrated. However, the search for improved osseointegration has continued forward for the new evolution of modern dental implants. This represents a continuum of developments spanning more than 20 years of research on implant related-factors including surgical techniques, implant design, and surface properties. The methods to enhance osseointegration of dental implants in low quality (type-IV) bone are described in a general manner in this review. PMID- 29342831 TI - Refugee Health: An Ongoing Commitment and Challenge. AB - Refugees represent a diverse group of displaced individuals with unique health issues and disease risks. The obstacles facing this population have their origins in war, violence, oppression, exploitation, and fear of persecution. Regardless of country of origin, a common bond exists, with refugees often confronting inadequate healthcare resources, xenophobia, discrimination, and a complex web of legal barriers in their new homelands. In many cases, the plight of refugees is multigenerational, manifesting as mental health issues, abuse, poverty, and family disruption. The health trajectory of refugees remains an ongoing commitment and challenge. PMID- 29342832 TI - Development of an Internal Real-Time Wireless Diagnostic Tool for a Proton Exchange Membrane Fuel Cell. AB - To prolong the operating time of unmanned aerial vehicles which use proton exchange membrane fuel cells (PEMFC), the performance of PEMFC is the key. However, a long-term operation can make the Pt particles of the catalyst layer and the pollutants in the feedstock gas bond together (e.g., CO), so that the catalyst loses reaction activity. The performance decay and aging of PEMFC will be influenced by operating conditions, temperature, flow and CO concentration. Therefore, this study proposes the development of an internal real-time wireless diagnostic tool for PEMFC, and uses micro-electro-mechanical systems (MEMS) technology to develop a wireless and thin (<50 MUm) flexible integrated (temperature, flow and CO) microsensor. The technical advantages are (1) compactness and three wireless measurement functions; (2) elastic measurement position and accurate embedding; (3) high accuracy and sensitivity and quick response; (4) real-time wireless monitoring of dynamic performance of PEMFC; (5) customized design and development. The flexible integrated microsensor is embedded in the PEMFC, three important physical quantities in the PEMFC, which are the temperature, flow and CO, can be measured simultaneously and instantly, so as to obtain the authentic and complete reaction in the PEMFC to enhance the performance of PEMFC and to prolong the service life. PMID- 29342833 TI - Structural Determination of Ruthenium Complexes Containing Bi-Dentate Pyrrole Ketone Ligands. AB - A series of ruthenium compounds containing a pyrrole-ketone bidentate ligand, 2 (2'-methoxybenzoyl)pyrrole (1), have been synthesized and characterized. Reacting 1 with [(eta6-cymene)RuCl2]2 and RuHCl(CO)(PPh3)3 generated Ru(eta6-cymene)[C4H3N 2-(CO-C6H4-2-OMe)]Cl (2) and {RuCl(CO)(PPh3)2[C4H3N-2-(COC6H4-2-OMe)]} (3), respectively, in moderate yields. Successively reacting 2 with sodium cyanate and sodium azide gave {Ru(eta6-cymene)[C4H3N-2-(CO-C6H4-2-OMe)]X} (4, X=OCN; 5, X=N3) with the elimination of sodium chloride. Compounds 2-5 were all characterized by 1H and 13C-NMR spectra and their structures were also determined by X-ray single crystallography. PMID- 29342835 TI - Small Peptides Able to Suppress Prostaglandin E2 Generation in Renal Mesangial Cells. AB - Peptide drug discovery may play a key role in the identification of novel medicinal agents. Here, we present the development of novel small peptides able to suppress the production of PGE2 in mesangial cells. The new compounds were generated by structural alterations applied on GK115, a novel inhibitor of secreted phospholipase A2, which has been previously shown to reduce PGE2 synthesis in rat renal mesangial cells. Among the synthesized compounds, the tripeptide derivative 11 exhibited a nice dose-dependent suppression of PGE2 production, similar to that observed for GK115. PMID- 29342834 TI - Facial Bone Reconstruction Using both Marine or Non-Marine Bone Substitutes: Evaluation of Current Outcomes in a Systematic Literature Review. AB - The aim of the present investigation was to systematically analyse the literature on the facial bone reconstruction defect using marine collagen or not and to evaluate a predictable treatment for their clinical management. The revision has been performed by searched MEDLINE and EMBASE databases from 2007 to 2017. Clinical trials and animal in vitro studies that had reported the application of bone substitutes or not for bone reconstruction defect and using marine collagen or other bone substitute material were recorded following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The first selection involved 1201 citations. After screening and evaluation of suitability, 39 articles were added at the revision process. Numerous discrepancies among the papers about bone defects morphology, surgical protocols, and selection of biomaterials were found. All selected manuscripts considered the final clinical success after the facial bone reconstruction applying bone substitutes. However, the scientific evidence regarding the vantage of the appliance of a biomaterial versus autologous bone still remains debated. Marine collagen seems to favor the dimensional stability of the graft and it could be an excellent carrier for growth factors. PMID- 29342836 TI - Cool-Climate Red Wines-Chemical Composition and Comparison of Two Protocols for 1H-NMR Analysis. AB - This study investigates the metabolome of 26 experimental cool-climate wines made from 22 grape varieties using two different protocols for wine analysis by proton nuclear magnetic resonance (1H-NMR) spectroscopy. The wine samples were analyzed as-is (wet) and as dried samples. The NMR datasets were preprocessed by alignment and mean centering. No normalization or scaling was performed. The "wet" method preserved the inherent properties of the samples and provided a fast and effective overview of the molecular composition of the wines. The "dried" method yielded a slightly better sensitivity towards a broader range of the compounds present in wines. A total of 27 metabolites including amino acids, organic acids, sugars, and alkaloids were identified in the 1H-NMR spectra of the wine samples. Principal component analysis was performed on both NMR datasets evidencing well defined molecular fingerprints for 'Baco Noir', 'Bolero', 'Cabernet Cantor', 'Cabernet Cortis', 'Don Muscat', 'Eszter', 'Golubok', 'New York Muscat', 'Regent', 'Rondo', 'Triomphe d'Alsace', 'Precose Noir', and 'Vinoslivy' wines. Amongst the identified metabolites, lactic acid, succinic acid, acetic acid, gallic acid, glycerol, and methanol were found to drive sample groupings. The 1H NMR data was compared to the absolute concentration values obtained from a reference Fourier transform infrared method, evidencing a high correlation. PMID- 29342837 TI - Effect of Exposed Surface Area, Volume and Environmental pH on the Calcium Ion Release of Three Commercially Available Tricalcium Silicate Based Dental Cements. AB - Tricalcium silicate cements (TSC) are used in dental traumatology and endodontics for their bioactivity which is mostly attributed to formation of calcium hydroxide during TSC hydration and its subsequent release of calcium and hydroxide ions. The aim of this study was to determine the effect of volume (Vol), exposed surface area (ESA) and pH of surrounding medium on calcium ion release. Three commercially available hydraulic alkaline dental cements were mixed and condensed into cylindrical tubes of varying length and diameter (n = 6/group). For the effect of ESA and Vol, tubes were immersed in 10 mL of deionized water. To analyze the effect of environmental pH, the tubes were randomly immersed in 10 mL of buffer solutions with varying pH (10.4, 7.4 or 4.4). The solutions were collected and renewed at various time intervals. pH and/or calcium ion release was measured using a pH glass electrode and atomic absorption spectrophotometer respectively. The change of pH, short-term calcium ion release and rate at which calcium ion release reaches maximum were dependent on ESA (p < 0.05) while maximum calcium ion release was dependent on Vol of TSC (p < 0.05). Maximum calcium ion release was significantly higher in acidic solution followed by neutral and alkaline solution (p < 0.05). PMID- 29342838 TI - Biopolymer-Based Nanoparticles for Cystic Fibrosis Lung Gene Therapy Studies. AB - Lung gene therapy for cystic fibrosis disease has not been successful due to several challenges such as the absence of an appropriate vector. Therefore, optimal delivery of emerging therapeutics to airway epithelial cells demands suitable non-viral systems. In this work, we describe the formulation and the physicochemical investigation of biocompatible and biodegradable polymeric nanoparticles (NPs), including PLGA and chitosan (animal and non-animal), as novel methods for the safe and efficient delivery of CFTR-specific locked nucleic acids (LNAs). PMID- 29342839 TI - Calcium Phosphates as Delivery Systems for Bisphosphonates. AB - Bisphosphonates (BPs) are the most utilized drugs for the treatment of osteoporosis, and are usefully employed also for other pathologies characterized by abnormally high bone resorption, including bone metastases. Due to the great affinity of these drugs for calcium ions, calcium phosphates are ideal delivery systems for local administration of BPs to bone, which is aimed to avoid/limit the undesirable side effects of their prolonged systemic use. Direct synthesis in aqueous medium and chemisorptions from solution are the two main routes proposed to synthesize BP functionalized calcium phosphates. The present review overviews the information acquired through the studies on the interaction between bisphosphonate molecules and calcium phosphates. Moreover, particular attention is addressed to some important recent achievements on the applications of BP functionalized calcium phosphates as biomaterials for bone substitution/repair. PMID- 29342840 TI - Evaluation of Rapid, Early Warning Approaches to Track Shellfish Toxins Associated with Dinophysis and Alexandrium Blooms. AB - Marine biotoxin-contaminated seafood has caused thousands of poisonings worldwide this century. Given these threats, there is an increasing need for improved technologies that can be easily integrated into coastal monitoring programs. This study evaluates approaches for monitoring toxins associated with recurrent toxin producing Alexandrium and Dinophysis blooms on Long Island, NY, USA, which cause paralytic and diarrhetic shellfish poisoning (PSP and DSP), respectively. Within contrasting locations, the dynamics of pelagic Alexandrium and Dinophysis cell densities, toxins in plankton, and toxins in deployed blue mussels (Mytilus edulis) were compared with passive solid-phase adsorption toxin tracking (SPATT) samplers filled with two types of resin, HP20 and XAD-2. Multiple species of wild shellfish were also collected during Dinophysis blooms and used to compare toxin content using two different extraction techniques (single dispersive and double exhaustive) and two different toxin analysis assays (liquid chromatography/mass spectrometry and the protein phosphatase inhibition assay (PP2A)) for the measurement of DSP toxins. DSP toxins measured in the HP20 resin were significantly correlated (R2 = 0.7-0.9, p < 0.001) with total DSP toxins in shellfish, but were detected more than three weeks prior to detection in deployed mussels. Both resins adsorbed measurable levels of PSP toxins, but neither quantitatively tracked Alexandrium cell densities, toxicity in plankton or toxins in shellfish. DSP extraction and toxin analysis methods did not differ significantly (p > 0.05), were highly correlated (R2 = 0.98-0.99; p < 0.001) and provided complete recovery of DSP toxins from standard reference materials. Blue mussels (Mytilus edulis) and ribbed mussels (Geukensia demissa) were found to accumulate DSP toxins above federal and international standards (160 ng g-1) during Dinophysis blooms while Eastern oysters (Crassostrea virginica) and soft shell clams (Mya arenaria) did not. This study demonstrated that SPATT samplers using HP20 resin coupled with PP2A technology could be used to provide early warning of DSP, but not PSP, events for shellfish management. PMID- 29342842 TI - Investigating Effect of Service Encounter, Value, and Satisfaction on Word of Mouth: An Outpatient Service Context. AB - This study investigates the relationships among service encounter, service value, patient satisfaction, and word-of-mouth (WOM) intention from the viewpoint of interactive marketing. Data were collected using a questionnaire survey. A total of 372 questionnaires were obtained and 350 of these questionnaires were valid (94.09%), and a structural equation model was used to analyze the data. This study proposed seven hypotheses, and five of the seven hypotheses were supported. Service encounters indirectly affect their patient WOM through service value and satisfaction. Therefore, service value and satisfaction play a crucial mediating role in linking service encounters and WOM. This study determined WOM intentions in an outpatient service context and provides crucial business implications for teaching hospitals to enable them to improve their service quality and achieve a sustainable operation. PMID- 29342841 TI - miR-3189-3p Mimics Enhance the Effects of S100A4 siRNA on the Inhibition of Proliferation and Migration of Gastric Cancer Cells by Targeting CFL2. AB - GDF15 is a downstream gene of S100A4. miR-3189 is embedded in the intron of GDF15 and coexpressed with it. miR-3189-3p functions to inhibit the proliferation and migration of glioblastoma cells. We speculated that S100A4 might regulate miR 3189-3p to affect its function in gastric cancer cells. Quantitative reverse transcription polymerase chain reaction (qRT-PCR) showed that miR-3189-3p expression was significantly downregulated in MGC803 cells after S100A4 knockdown. Overexpression of miR-3189-3p significantly inhibited the proliferation and migration of the cells. Moreover, miR-3189-3p mimics enhanced the effects of an S100A4 siRNA on the inhibition of cell proliferation and migration. Dual luciferase reporter assays, qRT-PCR, and Western blotting verified that CFL2 is a direct target of miR-3189-3p. CFL2 mediates the regulation of miR-3189-3p on the proliferation and migration of MGC803 cells. Data mining based on Kaplan-Meier plots showed that high CFL2 expression is associated with poor overall survival and first progression in gastric cancer. These data suggested that miR-3189-3p mimics enhanced the effects of the S100A4 siRNA on the inhibition of gastric cancer cell proliferation and migration by targeting CFL2. The findings suggested that when targeting S100A4 to treat gastric cancer, consideration and correction for counteracting factors should obtain a satisfactory effect. PMID- 29342843 TI - Chiral and Molecular Recognition through Protonation between Aromatic Amino Acids and Tripeptides Probed by Collision-Activated Dissociation in the Gas Phase. AB - Chiral and molecular recognition through protonation was investigated through the collision-activated dissociation (CAD) of protonated noncovalent complexes of aromatic amino acid enantiomers with l-alanine- and l-serine-containing tripeptides using a linear ion trap mass spectrometer. In the case of l-alanine tripeptide (AAA), NH3 loss was observed in the CAD of heterochiral H+(d-Trp)AAA, while H2O loss was the main dissociation pathways for l-Trp, d-Phe, and l-Phe. The protonation site of heterochiral H+(d-Trp)AAA was the amino group of d-Trp, and the NH3 loss occurred from H+(d-Trp). The H2O loss indicated that the proton was attached to the l-alanine tripeptide in the noncovalent complexes. With the substitution of a central residue of l-alanine tripeptide to l-Ser, ASA recognized l-Phe by protonation to the amino group of l-Phe in homochiral H+(l Phe)ASA. For the protonated noncovalent complexes of His enantiomers with tripeptides (AAA, SAA, ASA, and AAS), protonated His was observed in the spectra, except for those of heterochiral H+(d-His)SAA and H+(d-His)AAS, indicating that d His did not accept protons from the SAA and AAS in the noncovalent complexes. The amino-acid sequences of the tripeptides required for the recognition of aromatic amino acids were determined by analyses of the CAD spectra. PMID- 29342844 TI - Short Vacation Improves Stress-Level and Well-Being in German-Speaking Middle Managers-A Randomized Controlled Trial. AB - Stress in the work place has a detrimental effect on people's health. Sufficient recovery is necessary to counteract severe chronic negative load reactions. Previous research has shown that vacationing for at least seven consecutive days provided an efficient recovery strategy. Yet, thus far, the effects of short vacations and the mode of vacation (whether at home or in a new environment) have rarely been studied. We investigated the immediate and long-term effects of a short vacation (four nights) on well-being and perceived stress and whether the mode of vacation impacted on these results. Data was obtained from 40 middle managers (67.5% men and 32.5% women). The intervention group (n = 20) spent a short vacation in a hotel outside their usual environment. The control group (n = 20) spent their vacation at home. Results indicated that one single short-term vacation, independent of the mode, has large, positive and immediate effects on perceived stress, recovery, strain, and well-being. Strain levels decreased to a greater extent in the intervention group compared to the control group. The effects can still be detected at 30 days (recovery) and 45 days (well-being and strain) post-vacation. Encouraging middle management employees to take short vacations seems to be an efficient health promotion strategy; environmental effects seem to play a minor role. PMID- 29342845 TI - Anesthetic Preconditioning as Endogenous Neuroprotection in Glaucoma. AB - Blindness in glaucoma is the result of death of Retinal Ganglion Cells (RGCs) and their axons. RGC death is generally preceded by a stage of reversible dysfunction and structural remodeling. Current treatments aimed at reducing intraocular pressure (IOP) are ineffective or incompletely effective in management of the disease. IOP-independent neuroprotection or neuroprotection as adjuvant to IOP lowering in glaucoma remains a challenge as effective agents without side effects have not been identified yet. We show in DBA/2J mice with spontaneous IOP elevation and glaucoma that the lifespan of functional RGCs can be extended by preconditioning RGCs with retrobulbar lidocaine in one eye at four months of age that temporary blocks RGC axonal transport. The contralateral, PBS-injected eye served as control. Lidocaine-induced impairment of axonal transport to superior colliculi was assessed by intravitreal injection of cholera toxin B. Long-term (nine months) effect of lidocaine were assessed on RGC electrical responsiveness (PERG), IOP, expression of relevant protein (BDNF, TrkB, PSD95, GFAP, Synaptophysin, and GAPDH) and RGC density. While lidocaine treatment did not alter the age-related increase of IOP, TrkB expression was elevated, GFAP expression was decreased, RGC survival was improved by 35%, and PERG function was preserved. Results suggest that the lifespan of functional RGCs in mouse glaucoma can be extended by preconditioning RGCs in early stages of the disease using a minimally invasive treatment with retrobulbar lidocaine, a common ophthalmologic procedure. Lidocaine is inexpensive, safe and is approved by Food and Drug Administration (FDA) to be administered intravenously. PMID- 29342846 TI - Mental Health and Drivers of Need in Emergent and Non-Emergent Emergency Department (ED) Use: Do Living Location and Non-Emergent Care Sources Matter? AB - Emergency department (ED) utilization has increased due to factors such as admissions for mental health conditions, including suicide and self-harm. We investigate direct and moderating influences on non-emergent ED utilization through the Behavioral Model of Health Services Use. Through logistic regression, we examined correlates of ED use via 2014 New York State Department of Health Statewide Planning and Research Cooperative System outpatient data. Consistent with the primary hypothesis, mental health admissions were associated with emergent use across models, with only a slight decrease in effect size in rural living locations. Concerning moderating effects, Spanish/Hispanic origin was associated with increased likelihood for emergent ED use in the rural living location model, and non-emergent ED use for the no non-emergent source model. 'Other' ethnic origin increased the likelihood of emergent ED use for rural living location and no non-emergent source models. The findings reveal 'need', including mental health admissions, as the largest driver for ED use. This may be due to mental healthcare access, or patients with mental health emergencies being transported via first responders to the ED, as in the case of suicide, self-harm, manic episodes or psychotic episodes. Further educating ED staff on this patient population through gatekeeper training may ensure patients receive the best treatment and aid in driving access to mental healthcare delivery changes. PMID- 29342847 TI - How Work Characteristics Are Related to European Workers' Psychological Well Being. A Comparison of Two Age Groups. AB - This study aimed to analyze the mechanisms through which work characteristics are related to psychological well-being, exploring the mediational role of work meaningfulness and job satisfaction, and investigating differences in the patterns of relationships between two age groups. The sample was composed of 36,896 workers from the 5th European Working Conditions Survey. Structural equation modeling analyses and multiple group analyses were performed. The results revealed a parallel mediational model, in which work meaningfulness and general job satisfaction mediate the relationships between work characteristics and well-being. Additionally, job satisfaction partially mediates the relationship between meaningfulness and well-being. These results were confirmed in both age groups (under 55 years old and older workers), but age moderates the relationships between social support and the mediating variables and the relationships between the mediating variables and general well-being. The present study uncovers significant pathways through which time pressure, decision latitude, and social support are related to psychological well-being, depicting an important step in better understanding how and when work characteristics are related to positive outcomes. It provides important clues for promoting psychosocial health at work at the European level. PMID- 29342848 TI - A Voltammetric Electronic Tongue for the Resolution of Ternary Nitrophenol Mixtures. AB - This work reports the applicability of a voltammetric sensor array able to quantify the content of 2,4-dinitrophenol, 4-nitrophenol, and picric acid in artificial samples using the electronic tongue (ET) principles. The ET is based on cyclic voltammetry signals, obtained from an array of metal disk electrodes and a graphite epoxy composite electrode, compressed using discrete wavelet transform with chemometric tools such as artificial neural networks (ANNs). ANNs were employed to build the quantitative prediction model. In this manner, a set of standards based on a full factorial design, ranging from 0 to 300 mg.L-1, was prepared to build the model; afterward, the model was validated with a completely independent set of standards. The model successfully predicted the concentration of the three considered phenols with a normalized root mean square error of 0.030 and 0.076 for the training and test subsets, respectively, and r >= 0.948. PMID- 29342849 TI - Comparative Response of the Hepatic Transcriptomes of Domesticated and Wild Turkey to Aflatoxin B1. AB - The food-borne mycotoxin aflatoxin B1 (AFB1) poses a significant risk to poultry, which are highly susceptible to its hepatotoxic effects. Domesticated turkeys (Meleagris gallopavo) are especially sensitive, whereas wild turkeys (M. g. silvestris) are more resistant. AFB1 toxicity entails bioactivation by hepatic cytochrome P450s to the electrophilic exo-AFB1-8,9-epoxide (AFBO). Domesticated turkeys lack functional hepatic GST-mediated detoxification of AFBO, and this is largely responsible for the differences in resistance between turkey types. This study was designed to characterize transcriptional changes induced in turkey livers by AFB1, and to contrast the response of domesticated (susceptible) and wild (more resistant) birds. Gene expression responses to AFB1 were examined using RNA-sequencing. Statistically significant differences in gene expression were observed among treatment groups and between turkey types. Expression analysis identified 4621 genes with significant differential expression (DE) in AFB1-treated birds compared to controls. Characterization of DE transcripts revealed genes dis-regulated in response to toxic insult with significant association of Phase I and Phase II genes and others important in cellular regulation, modulation of apoptosis, and inflammatory responses. Constitutive expression of GSTA3 was significantly higher in wild birds and was significantly higher in AFB1-treated birds when compared to controls for both genetic groups. This pattern was also observed by qRT-PCR in other wild and domesticated turkey strains. Results of this study emphasize the differential response of these genetically distinct birds, and identify genes and pathways that are differentially altered in aflatoxicosis. PMID- 29342850 TI - Multi-Sensor Based Online Attitude Estimation and Stability Measurement of Articulated Heavy Vehicles. AB - Articulated wheel loaders used in the construction industry are heavy vehicles and have poor stability and a high rate of accidents because of the unpredictable changes of their body posture, mass and centroid position in complex operation environments. This paper presents a novel distributed multi-sensor system for real-time attitude estimation and stability measurement of articulated wheel loaders to improve their safety and stability. Four attitude and heading reference systems (AHRS) are constructed using micro-electro-mechanical system (MEMS) sensors, and installed on the front body, rear body, rear axis and boom of an articulated wheel loader to detect its attitude. A complementary filtering algorithm is deployed for sensor data fusion in the system so that steady state margin angle (SSMA) can be measured in real time and used as the judge index of rollover stability. Experiments are conducted on a prototype wheel loader, and results show that the proposed multi-sensor system is able to detect potential unstable states of an articulated wheel loader in real-time and with high accuracy. PMID- 29342851 TI - Laser Machining and In Vitro Assessment of Wollastonite-Tricalcium Phosphate Eutectic Glasses and Glass-Ceramics. AB - Bioactivity and ingrowth of ceramic implants is commonly enhanced by a suitable interconnected porous network. In this work, the laser machining of CaSiO3 Ca3(PO4)2 biocompatible eutectic glass-ceramics and glasses was studied. For this purpose, 300 um diameter craters were machined by using pulsed laser radiation at 532 nm with a pulsewidth in the nanosecond range. Machined samples were soaked in simulated body fluid for 2 months to assess the formation of a hydroxyapatite layer on the surface of the laser machined areas. The samples were manufactured by the laser floating zone technique using a CO2 laser. Morphology, composition and microstructure of the machined samples were described by Field Emission Scanning Electron Microscopy, Energy Dispersive X-ray Spectroscopy and micro Raman Spectroscopy. PMID- 29342852 TI - Atmospheric Environment Vulnerability Cause Analysis for the Beijing-Tianjin Hebei Metropolitan Region. AB - Assessing and quantifying atmospheric vulnerability is a key issue in urban environmental protection and management. This paper integrated the Analytical hierarchy process (AHP), fuzzy synthesis evaluation and Geographic Information System (GIS) spatial analysis into an Exposure-Sensitivity-Adaptive capacity (ESA) framework to quantitatively assess atmospheric environment vulnerability in the Beijing-Tianjin-Hebei (BTH) region with spatial and temporal comparisons. The elaboration of the relationships between atmospheric environment vulnerability and indices of exposure, sensitivity, and adaptive capacity supports enable analysis of the atmospheric environment vulnerability. Our findings indicate that the atmospheric environment vulnerability of 13 cities in the BTH region exhibits obvious spatial heterogeneity, which is caused by regional diversity in exposure, sensitivity, and adaptive capacity indices. The results of atmospheric environment vulnerability assessment and the cause analysis can provide guidance to pick out key control regions and recognize vulnerable indicators for study sites. The framework developed in this paper can also be replicated at different spatial and temporal scales using context-specific datasets to support environmental management. PMID- 29342853 TI - Structural Examination of Halogen-Bonded Co-Crystals of Tritopic Acceptors. AB - A series of tritopic N-heterocyclic compounds containing electrostatically and geometrically equivalent binding sites were synthesized and subjected to systematic co-crystallizations with selected perfluoroiodoarenes in order to map out their structural landscapes. More than 70% of the attempted reactions produced a co-crystal as indicated by IR spectroscopy. Four new crystal structures are reported and in all of them, at least one potential binding site on the acceptor is left vacant. The absence of halogen bonds to all sites can be ascribed primarily due to deactivation of the sigma-hole on the iodo-arene donors and partially due to steric hindrance. The tritopic acceptors containing 5,6 dimethylbenzimidazole derivatives yield discrete tetrameric aggregates in the solid state, whereas the pyrazole and imidazole analogues assemble into halogen bonded 1-D chains. PMID- 29342854 TI - Impact of Prolonged Blood Incubation and Extended Serum Storage at Room Temperature on the Human Serum Metabolome. AB - Metabolomics is a powerful technology with broad applications in life science that, like other -omics approaches, requires high-quality samples to achieve reliable results and ensure reproducibility. Therefore, along with quality assurance, methods to assess sample quality regarding pre-analytical confounders are urgently needed. In this study, we analyzed the response of the human serum metabolome to pre-analytical variations comprising prolonged blood incubation and extended serum storage at room temperature by using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-tandem mass spectrometry (LC MS/MS) -based metabolomics. We found that the prolonged incubation of blood results in a statistically significant 20% increase and 4% decrease of 225 tested serum metabolites. Extended serum storage affected 21% of the analyzed metabolites (14% increased, 7% decreased). Amino acids and nucleobases showed the highest percentage of changed metabolites in both confounding conditions, whereas lipids were remarkably stable. Interestingly, the amounts of taurine and O phosphoethanolamine, which have both been discussed as biomarkers for various diseases, were 1.8- and 2.9-fold increased after 6 h of blood incubation. Since we found that both are more stable in ethylenediaminetetraacetic acid (EDTA) blood, EDTA plasma should be the preferred metabolomics matrix. PMID- 29342855 TI - Introduction to State Estimation of High-Rate System Dynamics. AB - Engineering systems experiencing high-rate dynamic events, including airbags, debris detection, and active blast protection systems, could benefit from real time observability for enhanced performance. However, the task of high-rate state estimation is challenging, in particular for real-time applications where the rate of the observer's convergence needs to be in the microsecond range. This paper identifies the challenges of state estimation of high-rate systems and discusses the fundamental characteristics of high-rate systems. A survey of applications and methods for estimators that have the potential to produce accurate estimations for a complex system experiencing highly dynamic events is presented. It is argued that adaptive observers are important to this research. In particular, adaptive data-driven observers are advantageous due to their adaptability and lack of dependence on the system model. PMID- 29342856 TI - Calculation and Identification of the Aerodynamic Parameters for Small-Scaled Fixed-Wing UAVs. AB - The establishment of the Aircraft Dynamic Model(ADM) constitutes the prerequisite for the design of the navigation and control system, but the aerodynamic parameters in the model could not be readily obtained especially for small-scaled fixed-wing UAVs. In this paper, the procedure of computing the aerodynamic parameters is developed. All the longitudinal and lateral aerodynamic derivatives are firstly calculated through semi-empirical method based on the aerodynamics, rather than the wind tunnel tests or fluid dynamics software analysis. Secondly, the residuals of each derivative are proposed to be identified or estimated further via Extended Kalman Filter(EKF), with the observations of the attitude and velocity from the airborne integrated navigation system. Meanwhile, the observability of the targeted parameters is analyzed and strengthened through multiple maneuvers. Based on a small-scaled fixed-wing aircraft driven by propeller, the airborne sensors are chosen and the model of the actuators are constructed. Then, real flight tests are implemented to verify the calculation and identification process. Test results tell the rationality of the semi empirical method and show the improvement of accuracy of ADM after the compensation of the parameters. PMID- 29342857 TI - An Adaptive Deghosting Method in Neural Network-Based Infrared Detectors Nonuniformity Correction. AB - The problems of the neural network-based nonuniformity correction algorithm for infrared focal plane arrays mainly concern slow convergence speed and ghosting artifacts. In general, the more stringent the inhibition of ghosting, the slower the convergence speed. The factors that affect these two problems are the estimated desired image and the learning rate. In this paper, we propose a learning rate rule that combines adaptive threshold edge detection and a temporal gate. Through the noise estimation algorithm, the adaptive spatial threshold is related to the residual nonuniformity noise in the corrected image. The proposed learning rate is used to effectively and stably suppress ghosting artifacts without slowing down the convergence speed. The performance of the proposed technique was thoroughly studied with infrared image sequences with both simulated nonuniformity and real nonuniformity. The results show that the deghosting performance of the proposed method is superior to that of other neural network-based nonuniformity correction algorithms and that the convergence speed is equivalent to the tested deghosting methods. PMID- 29342858 TI - Novel Fiber-Optic Ring Acoustic Emission Sensor. AB - Acoustic emission technology has been applied to many fields for many years. However, the conventional piezoelectric acoustic emission sensors cannot be used in extreme environments, such as those with heavy electromagnetic interference, high pressure, or strong corrosion. In this paper, a novel fiber-optic ring acoustic emission sensor is proposed. The sensor exhibits high sensitivity, anti electromagnetic interference, and corrosion resistance. First, the principle of a novel fiber-optic ring sensor is introduced. Different from piezoelectric and other fiber acoustic emission sensors, this novel sensor includes both a sensing skeleton and a sensing fiber. Second, a heterodyne interferometric demodulating method is presented. In addition, a fiber-optic ring sensor acoustic emission system is built based on this method. Finally, fiber-optic ring acoustic emission experiments are performed. The novel fiber-optic ring sensor is glued onto the surface of an aluminum plate. The 150 kHz standard continuous sinusoidal signals and broken lead signals are successfully detected by the novel fiber-optic ring acoustic emission sensor. In addition, comparison to the piezoelectric acoustic emission sensor is performed, which shows the availability and reliability of the novel fiber-optic ring acoustic emission sensor. In the future, this novel fiber optic ring acoustic emission sensor will provide a new route to acoustic emission detection in harsh environments. PMID- 29342859 TI - Multinuclear NMR Measurements and DFT Calculations for Capecitabine Tautomeric Form Assignment in a Solution. AB - The molecular structure of capecitabine (a widely applied prodrug of 5 fluorouracil) was studied by multinuclear NMR measurements and DFT quantum mechanical calculations. One or two tautomeric forms in a solution were detected depending on the solvent used. In the organic solvents, a mixture of two forms of capecitabine was observed: carbamate and imine tautomers. In the aqueous solution, only the carbamate form was found. The methylation of capecitabine yields mainly two products in different proportions: N3-methylcapecitabine and N7 methylcapecitabine. The protonation of capecitabine in organic solvents with perchloric acid occurs at the N3 nitrogen atom. DFT calculations strongly support the results coming from the analysis of the NMR spectra. PMID- 29342860 TI - AuNPs Hybrid Black ZnO Nanorods Made by a Sol-Gel Method for Highly Sensitive Humidity Sensing. AB - A highly sensitive self-powered humidity sensor has been realized from AuNPs hybrid black zinc oxide (ZnO) nanorods prepared through a sol-gel method. XRD pattern reveals that both ZnO and ZnO/AuNPs exhibit a wurtzite structure. ZnO/AuNPs nanorods grow in a vertical alignment, which possesses high uniformity and forms dense arrays with a smaller diameter than that of ZnO nanoparticles. All ZnO/AuNPs and pure black ZnO show lower band gap energy than the typically reported 3.34 eV of pure ZnO. Furthermore, the band gap of ZnO/AuNPs nanocomposites is effectively influenced by the amount of AuNPs. The humidity sensing tests clearly prove that all the ZnO/AuNPs humidity sensors exhibit much higher response than that of ZnO sensors, and the sensitivity of such ZnO/AuNPs nanorods (6 mL AuNPs) display a change three orders higher than that of pure ZnO with relative humidity (RH) ranging from 11% to 95% at room temperature. The response and recovery time of the ZnO/AuNPs are 5.6 s and 32.4 s, respectively. This study of the construction of semiconductor/noble metal sensors provides a rational way to control the morphology of semiconductor nanomaterials and to design a humidity sensor with high performance. PMID- 29342862 TI - Heterogeneous Contributing Factors in MPM Disease Development and Progression: Biological Advances and Clinical Implications. AB - Malignant pleural mesothelioma (MPM) tumors are remarkably aggressive and most patients only survive for 5-12 months; irrespective of stage; after primary symptoms appear. Compounding matters is that MPM remains unresponsive to conventional standards of care; including radiation and chemotherapy. Currently; instead of relying on molecular signatures and histological typing; MPM treatment options are guided by clinical stage and patient characteristics because the mechanism of carcinogenesis has not been fully elucidated; although about 80% of cases can be linked to asbestos exposure. Several molecular pathways have been implicated in the MPM tumor microenvironment; such as angiogenesis; apoptosis; cell-cycle regulation and several growth factor-related pathways predicted to be amenable to therapeutic intervention. Furthermore, the availability of genomic data has improved our understanding of the pathobiology of MPM. The MPM genomic landscape is dominated by inactivating mutations in several tumor suppressor genes; such as CDKN2A; BAP1 and NF2. Given the complex heterogeneity of the tumor microenvironment in MPM; a better understanding of the interplay between stromal; endothelial and immune cells at the molecular level is required; to chaperone the development of improved personalized therapeutics. Many recent advances at the molecular level have been reported and several exciting new treatment options are under investigation. Here; we review the challenges and the most up-to-date biological advances in MPM pertaining to the molecular pathways implicated; progress at the genomic level; immunological progression of this fatal disease; and its link with developmental cell pathways; with an emphasis on prognostic and therapeutic treatment strategies. PMID- 29342863 TI - Validation of a Rapid Method to Assess Habitual Beverage Intake Patterns. AB - The Healthy Beverage Index (HBI) is an emerging approach to assess beverage pattern quality. HBI total scores range from 0 to 100, with higher scores indicating greater adherence to proposed beverage recommendations. However, assessing patterns is resource-intensive due to the need for extensive dietary data, typically 24-h dietary records or recalls. The BEVQ-15, a beverage intake questionnaire, may be used as an alternative method to rapidly measure HBI scores. The objective of this cross-sectional investigation is to assess the comparative validity of the HBI-Q, a method to rapidly assess HBI scores via the BEVQ-15, as compared to the traditional method of deriving HBI scores via dietary recalls/records. Between 2012 and 2016, a cross-sectional sample of adults in southwest Virginia completed three 24-h dietary recalls (30-60 min administration and analysis time per recall) and the BEVQ-15 (3-4 min administration time). HBI scores were generated by both methods, and compared via paired-samples t-tests, correlations, and Bland-Altman analysis. Among 404 adults (mean age = 40 years), total mean HBI scores were 63.7 from the HBI-Q and 67.3 from the recalls (mean difference = 3.6 out of 100; r = 0.63; both p <= 0.001). Agreement between the two methods for total HBI scores via Bland-Altman plots was 92%. Using the HBI-Q to rapidly assess HBI scores in adults will increase the utility of the HBI by decreasing the time and resources required, thus allowing researchers and practitioners to provide targeted feedback for improvement. PMID- 29342861 TI - Rational Management of Iron-Deficiency Anaemia in Inflammatory Bowel Disease. AB - Anaemia is the most frequent, though often neglected, comorbidity of inflammatory bowel disease (IBD). Here we want to briefly present (1) the burden of anaemia in IBD, (2) its pathophysiology, which mostly arises from bleeding-associated iron deficiency, followed by (3) diagnostic evaluation of anaemia, (4) a balanced overview of the different modes of iron replacement therapy, (5) evidence for their therapeutic efficacy and subsequently, (6) an updated recommendation for the practical management of anaemia in IBD. Following the introduction of various intravenous iron preparations over the last decade, questions persist about when to use these preparations as opposed to traditional and other novel oral iron therapeutic agents. At present, oral iron therapy is generally preferred for patients with quiescent IBD and mild iron-deficiency anaemia. However, in patients with flaring IBD that hampers intestinal iron absorption and in those with inadequate responses to or side effects with oral preparations, intravenous iron supplementation is the therapy of choice, although information on the efficacy of intravenous iron in patients with active IBD and anaemia is scare. Importantly, anaemia in IBD is often multifactorial and a careful diagnostic workup is mandatory for optimized treatment. Nevertheless, limited information is available on optimal therapeutic start and end points for treatment of anaemia. Of note, neither oral nor intravenous therapies seem to exacerbate the clinical course of IBD. However, additional prospective studies are still warranted to determine the optimal therapy in complex conditions such as IBD. PMID- 29342864 TI - Mechanical Properties of a Newly Additive Manufactured Implant Material Based on Ti-42Nb. AB - The application of Ti-6Al-4V alloy or commercially pure titanium for additive manufacturing enables the fabrication of complex structural implants and patient specific implant geometries. However, the difference in Young's modulus of alpha + beta-phase Ti alloys compared to the human bone promotes stress-shielding effects in the implant-bone interphase. The aim of the present study is the mechanical characterization of a new pre-alloyed beta-phase Ti-42Nb alloy for application in additive manufacturing. The present investigation focuses on the mechanical properties of SLM-printed Ti-42Nb alloy in tensile and compression tests. In addition, the raw Ti-42Nb powder, the microstructure of the specimens prior to and after compression tests, as well as the fracture occurring in tensile tests are characterized by means of the SEM/EDX analysis. The Ti-42Nb raw powder exhibits a dendrite-like Ti-structure, which is melted layer-by-layer into a microstructure with a very homogeneous distribution of Nb and Ti during the SLM process. Tensile tests display Young's modulus of 60.51 +/- 3.92 GPa and an ultimate tensile strength of 683.17 +/- 16.67 MPa, whereas, under a compressive load, a compressive strength of 1330.74 +/- 53.45 MPa is observed. The combination of high mechanical strength and low elastic modulus makes Ti-42Nb an interesting material for orthopedic and dental implants. The spherical shape of the pre-alloyed material additionally allows for application in metal 3D printing, enabling the fabrication of patient-specific structural implants. PMID- 29342865 TI - Acute Post-Prandial Cognitive Effects of Brown Seaweed Extract in Humans. AB - (Poly)phenols and, specifically, phlorotannins present in brown seaweeds have previously been shown to inhibit alpha-amylase and alpha-glucosidase, key enzymes involved in the breakdown and intestinal absorption of carbohydrates. Related to this are observations of modulation of post-prandial glycemic response in mice and increased insulin sensitivity in humans when supplemented with seaweed extract. However, no studies to date have explored the effect of seaweed extract on cognition. The current randomized, placebo-controlled, double-blind, parallel groups study examined the impact of a brown seaweed extract on cognitive function post-prandially in 60 healthy adults (N = 30 per group). Computerized measures of episodic memory, attention and subjective state were completed at baseline and 5 times at 40 min intervals over a 3 h period following lunch, with either seaweed or placebo consumed 30 min prior to lunch. Analysis was conducted with linear mixed models controlling for baseline. Seaweed led to significant improvements to accuracy on digit vigilance (p = 0.035) and choice reaction time (p = 0.043) tasks. These findings provide the first evidence for modulation of cognition with seaweed extract. In order to explore the mechanism underlying these effects, future research should examine effects on cognition in parallel with blood glucose and insulin responses. PMID- 29342866 TI - Guanidinoacetic Acid and Creatine are Associated with Cardiometabolic Risk Factors in Healthy Men and Women: A Cross-Sectional Study. AB - Guanidinoacetic acid (GAA) conversion to creatine is thought to be involved in cardiometabolic disturbances through its role in biological methylation and insulin secretion. We evaluated the association of serum GAA and creatine with cardiometabolic risk factors in a cohort of 151 apparently healthy adults (82 women and 69 men) aged 18-63 years. Serum levels of GAA and creatine were measured with liquid chromatography-tandem mass spectrometry. A multiple linear regression model adjusted for age and sex was employed to examine the relationship of serum GAA and creatine with cardiometabolic risk factors. Higher GAA levels were associated with an unfavorable cardiometabolic risk profile (higher insulin, higher total homocysteine, and higher body fat percentage), while having elevated serum creatine levels (>=31.1 umol/L) was associated with being overweight (body mass index >= 25.0 kg/m). The results from our study suggest a possible role of the GAA-creatine axis in the pathogenesis of cardiovascular and metabolic diseases. PMID- 29342867 TI - A Longitudinal Study of 25-Hydroxy Vitamin D and Parathyroid Hormone Status throughout Pregnancy and Exclusive Lactation in New Zealand Mothers and Their Infants at 45 degrees S. AB - Vitamin D status and associated metabolism during pregnancy and lactation have been assessed in only a limited number of longitudinal studies, all from the northern hemisphere, with no infant data concurrently reported. Therefore, we aimed to describe longitudinal maternal and infant 25-hydroxy vitamin D (25OHD) and parathyroid hormone (PTH) status during pregnancy and up to 5 months postnatal age, in New Zealand women and their infants living at 45 degrees S latitude. Between September 2011 and June 2013, 126 pregnant women intending to exclusively breastfeed for at least 20 weeks were recruited. Longitudinal data were collected at three time-points spanning pregnancy, and following birth and at 20 weeks postpartum. Vitamin D deficiency (25OHD < 50 nmol/L) was common, found at one or more time-points in 65% and 76% of mothers and their infants, respectively. Mean cord 25OHD was 41 nmol/L, and three infants exhibited secondary hyperparathyroidism by postnatal week 20. Maternal late pregnancy 25OHD (gestation 32-38 weeks) was closely correlated with infant cord 25OHD, r2 = 0.87 (95% CI (Confidence interval) 0.8-0.91), while no correlation was seen between early pregnancy (<20 weeks gestation) maternal and cord 25OHD, r2 = 0.06 (95% CI 0.16-0.28). Among other variables, pregnancy 25OHD status, and therefore infant status at birth, were influenced by season of conception. In conclusion, vitamin D deficiency in women and their infants is very common during pregnancy and lactation in New Zealand at 45 degrees S. These data raise questions regarding the applicability of current pregnancy and lactation policy at this latitude, particularly recommendations relating to first trimester maternal vitamin D screening and targeted supplementation for those "at risk". PMID- 29342869 TI - Surface Fitting for Quasi Scattered Data from Coordinate Measuring Systems. AB - Non-uniform rational B-spline (NURBS) surface fitting from data points is wildly used in the fields of computer aided design (CAD), medical imaging, cultural relic representation and object-shape detection. Usually, the measured data acquired from coordinate measuring systems is neither gridded nor completely scattered. The distribution of this kind of data is scattered in physical space, but the data points are stored in a way consistent with the order of measurement, so it is named quasi scattered data in this paper. Therefore they can be organized into rows easily but the number of points in each row is random. In order to overcome the difficulty of surface fitting from this kind of data, a new method based on resampling is proposed. It consists of three major steps: (1) NURBS curve fitting for each row, (2) resampling on the fitted curve and (3) surface fitting from the resampled data. Iterative projection optimization scheme is applied in the first and third step to yield advisable parameterization and reduce the time cost of projection. A resampling approach based on parameters, local peaks and contour curvature is proposed to overcome the problems of nodes redundancy and high time consumption in the fitting of this kind of scattered data. Numerical experiments are conducted with both simulation and practical data, and the results show that the proposed method is fast, effective and robust. What's more, by analyzing the fitting results acquired form data with different degrees of scatterness it can be demonstrated that the error introduced by resampling is negligible and therefore it is feasible. PMID- 29342868 TI - Hypoxia and Hormone-Mediated Pathways Converge at the Histone Demethylase KDM4B in Cancer. AB - Hormones play an important role in pathophysiology. The hormone receptors, such as estrogen receptor alpha and androgen receptor in breast cancer and prostate cancer, are critical to cancer cell proliferation and tumor growth. In this review we focused on the cross-talk between hormone and hypoxia pathways, particularly in breast cancer. We delineated a novel signaling pathway from estrogen receptor to hypoxia-inducible factor 1, and discussed the role of this pathway in endocrine therapy resistance. Further, we discussed the estrogen and hypoxia pathways converging at histone demethylase KDM4B, an important epigenetic modifier in cancer. PMID- 29342870 TI - Biomarkers of Progression after HIV Acute/Early Infection: Nothing Compares to CD4+ T-cell Count? AB - Progression of HIV infection is variable among individuals, and definition disease progression biomarkers is still needed. Here, we aimed to categorize the predictive potential of several variables using feature selection methods and decision trees. A total of seventy-five treatment-naive subjects were enrolled during acute/early HIV infection. CD4+ T-cell counts (CD4TC) and viral load (VL) levels were determined at enrollment and for one year. Immune activation, HIV specific immune response, Human Leukocyte Antigen (HLA) and C-C chemokine receptor type 5 (CCR5) genotypes, and plasma levels of 39 cytokines were determined. Data were analyzed by machine learning and non-parametric methods. Variable hierarchization was performed by Weka correlation-based feature selection and J48 decision tree. Plasma interleukin (IL)-10, interferon gamma induced protein (IP)-10, soluble IL-2 receptor alpha (sIL-2Ralpha) and tumor necrosis factor alpha (TNF-alpha) levels correlated directly with baseline VL, whereas IL-2, TNF-alpha, fibroblast growth factor (FGF)-2 and macrophage inflammatory protein (MIP)-1beta correlated directly with CD4+ T-cell activation (p < 0.05). However, none of these cytokines had good predictive values to distinguish "progressors" from "non-progressors". Similarly, immune activation, HIV-specific immune responses and HLA/CCR5 genotypes had low discrimination power. Baseline CD4TC was the most potent discerning variable with a cut-off of 438 cells/MUL (accuracy = 0.93, kappa-Cohen = 0.85). Limited discerning power of the other factors might be related to frequency, variability and/or sampling time. Future studies based on decision trees to identify biomarkers of post treatment control are warrantied. PMID- 29342872 TI - Human Cytomegalovirus Nuclear Capsids Associate with the Core Nuclear Egress Complex and the Viral Protein Kinase pUL97. AB - The nuclear phase of herpesvirus replication is regulated through the formation of regulatory multi-component protein complexes. Viral genomic replication is followed by nuclear capsid assembly, DNA encapsidation and nuclear egress. The latter has been studied intensely pointing to the formation of a viral core nuclear egress complex (NEC) that recruits a multimeric assembly of viral and cellular factors for the reorganization of the nuclear envelope. To date, the mechanism of the association of human cytomegalovirus (HCMV) capsids with the NEC, which in turn initiates the specific steps of nuclear capsid budding, remains undefined. Here, we provide electron microscopy-based data demonstrating the association of both nuclear capsids and NEC proteins at nuclear lamina budding sites. Specifically, immunogold labelling of the core NEC constituent pUL53 and NEC-associated viral kinase pUL97 suggested an intranuclear NEC-capsid interaction. Staining patterns with phospho-specific lamin A/C antibodies are compatible with earlier postulates of targeted capsid egress at lamina-depleted areas. Important data were provided by co-immunoprecipitation and in vitro kinase analyses using lysates from HCMV-infected cells, nuclear fractions, or infectious virions. Data strongly suggest that nuclear capsids interact with pUL53 and pUL97. Combined, the findings support a refined concept of HCMV nuclear trafficking and NEC-capsid interaction. PMID- 29342871 TI - Interferons: Reprogramming the Metabolic Network against Viral Infection. AB - Viruses exploit the host and induce drastic metabolic changes to ensure an optimal environment for replication and the production of viral progenies. In response, the host has developed diverse countermeasures to sense and limit these alterations to combat viral infection. One such host mechanism is through interferon signaling. Interferons are cytokines that enhances the transcription of hundreds of interferon-stimulated genes (ISGs) whose products are key players in the innate immune response to viral infection. In addition to their direct targeting of viral components, interferons and ISGs exert profound effects on cellular metabolism. Recent studies have started to illuminate on the specific role of interferon in rewiring cellular metabolism to activate immune cells and limit viral infection. This review reflects on our current understanding of the complex networking that occurs between the virus and host at the interface of cellular metabolism, with a focus on the ISGs in particular, cholesterol-25 hydroxylase (CH25H), spermidine/spermine acetyltransferase 1 (SAT1), indoleamine 2,3-dioxygenase (IDO1) and sterile alpha motif and histidine/aspartic acid domain containing protein 1 (SAMHD1), which were recently discovered to modulate specific metabolic events and consequently deter viral infection. PMID- 29342873 TI - Association between the Frequency of Protein-Rich Food Intakes and Kihon Checklist Frailty Indices in Older Japanese Adults: The Kyoto-Kameoka Study. AB - We aimed to investigate whether frequencies of protein-rich food intake were associated with frailty among older Japanese adults. A cross-sectional study was conducted in 2011 among 3843 men and 4331 women in a population-based cohort of Kameoka city, Kyoto Prefecture, Japan. Frailty was assessed by the weighted score based on the 25-item Kihon-Checklist. The frequency of protein-rich food intake was examined as "seafood", "meat", "dairy products", "eggs", and "soy products". The outcome of frailty was analyzed with a multiple logistic regression model using the frequency of protein-rich food intake. When compared to the first quartile, it was observed that there was a significant association between the lower adjusted prevalence ratio (PR) for frailty and the frequency of seafood intake in the fourth quartile among men (PR 0.64, 95% confidence interval (CI), 0.42, 0.99) and from the second quartile to the third quartile among women (PR 0.61, 95% CI, 0.43, 0.85; PR 0.64, 95% CI, 0.46, 0.91). The frequency of dairy products intake in the third quartile among women was significantly associated with a lower PR for frailty (p-value = 0.013). Our findings suggest that the consumption of seafood and dairy products may help older adults in maintaining their independence. PMID- 29342875 TI - The Detection of Burn-Through Weld Defects Using Noncontact Ultrasonics. AB - Nearly all manufactured products in the metal industry involve welding. The detection and correction of defects during welding improve the product reliability and quality, and prevent unexpected failures. Nonintrusive process control is critical for avoiding these defects. This paper investigates the detection of burn-through damage using noncontact, air-coupled ultrasonics, which can be adapted to the immediate and in-situ inspection of welded samples. The burn-through leads to a larger volume of degraded weld zone, providing a resistance path for the wave to travel which results in lower velocity, energy ratio, and amplitude. Wave energy dispersion occurs due to the increase of weld burn-through resulting in higher wave attenuation. Weld sample micrographs are used to validate the ultrasonic results. PMID- 29342874 TI - Rodent Models of Alcoholic Liver Disease: Role of Binge Ethanol Administration. AB - Both chronic and acute (binge) alcohol drinking are important health and economic concerns worldwide and prominent risk factors for the development of alcoholic liver disease (ALD). There are no FDA-approved medications to prevent or to treat any stage of ALD. Therefore, discovery of novel therapeutic strategies remains a critical need for patients with ALD. Relevant experimental animal models that simulate human drinking patterns and mimic the spectrum and severity of alcohol induced liver pathology in humans are critical to our ability to identify new mechanisms and therapeutic targets. There are several animal models currently in use, including the most widely utilized chronic ad libitum ethanol (EtOH) feeding (Lieber-DeCarli liquid diet model), chronic intragastric EtOH administration (Tsukamoto-French model), and chronic-plus-binge EtOH challenge (Bin Gao-National Institute on Alcohol Abuse and Alcoholism (NIAAA) model). This review provides an overview of recent advances in rodent models of binge EtOH administration which help to recapitulate different features and etiologies of progressive ALD. These models include EtOH binge alone, and EtOH binge coupled with chronic EtOH intake, a high fat diet, or endotoxin challenge. We analyze the strengths, limitations, and translational relevance of these models, as well as summarize the liver injury outcomes and mechanistic insights. We further discuss the application(s) of binge EtOH models in examining alcohol-induced multi-organ pathology, sex- and age-related differences, as well as circadian rhythm disruption. PMID- 29342876 TI - Improvement of Verticillium Wilt Resistance by Applying Arbuscular Mycorrhizal Fungi to a Cotton Variety with High Symbiotic Efficiency under Field Conditions. AB - Arbuscular mycorrhizal fungi (AMF) play an important role in nutrient cycling processes and plant stress resistance. To evaluate the effect of Rhizophagus irregularis CD1 on plant growth promotion (PGP) and Verticillium wilt disease, the symbiotic efficiency of AMF (SEA) was first investigated over a range of 3% to 94% in 17 cotton varieties. The high-SEA subgroup had significant PGP effects in a greenhouse. From these results, the highest-SEA variety of Lumian 1 was selected for a two-year field assay. Consistent with the performance from the greenhouse, the AMF-mediated PGP of Lumian 1 also produced significant results, including an increased plant height, stem diameter, number of petioles, and phosphorus content. Compared with the mock treatment, AMF colonization obviously inhibited the symptom development of Verticillium dahliae and more strongly elevated the expression of pathogenesis-related genes and lignin synthesis related genes. These results suggest that AMF colonization could lead to the mycorrhiza-induced resistance (MIR) of Lumian 1 to V. dahliae. Interestingly, our results indicated that the AMF endosymbiont could directly inhibit the growth of phytopathogenic fungi including V. dahliae by releasing undefined volatiles. In summary, our results suggest that stronger effects of AMF application result from the high-SEA. PMID- 29342877 TI - Accumulation of Heavy Metals in Tea Leaves and Potential Health Risk Assessment: A Case Study from Puan County, Guizhou Province, China. AB - This study features a survey of the concentrations of aluminum (Al) and heavy metals (Mn, Pb, Cd, Hg, As, Cr, Ni, Cu, and Zn) in tea leaves and the corresponding cultivation soils (0-30 cm), carried out in Puan County (Guizhou Province, China). The average concentrations of Al, Mn, Pb, Cd, Hg, As, Cr, Ni, Cu, and Zn in the soil were 106 * 103, 214, 20.9, 0.09, 0.12, 17.5, 121, 27.8, 131.2, and 64 mg.kg-1, respectively. The heavy metals' pollution indexes in the soil can be ranked as follows: Cu > Cr > Hg > As > Ni > Zn > Pb > Mn > Cd. The soil was moderately polluted by Cu because of the high geochemical background value of Cu in the area. The potential environment risk index (RI) showed that 7.69% out of the total sample sites were within the moderate level. Moreover, the ranges of Al, Mn, Pb, Cd, Hg, As, Cr, Ni, Cu, and Zn concentrations in young tea leaves were 250-660, 194-1130, 0.107-0.400, 0.012-0.092, 0.014-0.085, 0.073 0.456, 0.33-1.26, 6.33-14.90, 14.90-26.10, and 35.8-50.3 mg.kg-1, respectively. While in mature tea leaves, they were 4300-10,400, 536-4610, 0.560-1.265, 0.040 0.087, 0.043-0.089, 0.189-0.453, 0.69-2.91, 3.43-14.20, 6.17-16.25, and 9.1-20.0 mg.kg-1, respectively. Furthermore, the concentrations of Pb, Cu, As, Hg, Cd, and Cr in young tea leaves and mature tea leaves were all lower than the standard limit values (5.0, 30, 2.0, 0.3, 1.0, and 5.0 mg.kg-1 for Pb, Cu, As, Hg, Cd, and Cr, respectively) in China. Besides, the accumulation ability of tea leaves to Mn was the strongest, and the average bioconcentration factor (BCF) of Mn in mature tea leaves was 12.5. In addition, the average target hazard quotients (THQ) were all less than one for the young tea leaves and the average aggregate risk hazard index (HI) to adults was 0.272, indicating that there was not a potential health risk for adults through the consumption of the infusions brewed by young tea leaves. However, for mature tea leaves, the percentage which HI values were above one was 38.46%, and the risk to adults via the consumption of mature tea infusions were mainly contributed by Mn and Al. PMID- 29342878 TI - Improved Photo-Ignition of Carbon Nanotubes/Ferrocene Using a Lipophilic Porphyrin under White Power LED Irradiation. AB - The aim of this work is to investigate and characterize the photo-ignition process of dry multi-walled carbon nanotubes (MWCNTs) mixed with ferrocene (FeCp2) powder, using an LED (light-emitting diode) as the light source, a combination that has never been used, to the best of our knowledge. The ignition process was improved by adding a lipophilic porphyrin (H2Pp) in powder to the MWCNTs/FeCp2 mixtures-thus, a lower ignition threshold was obtained. The ignition tests were carried out by employing a continuous emission and a pulsed white LED in two test campaigns. In the first, two MWCNT typologies, high purity (HP) and industrial grade (IG), were used without porphyrin, obtaining, for both, similar ignition thresholds. Furthermore, comparing ignition thresholds obtained with the LED source with those previously obtained with a Xenon (Xe) lamp, a significant reduction was observed. In the second test campaign, ignition tests were carried out by means of a properly driven and controlled pulsed XHP70 LED source. The minimum ignition energy (MIE) of IG-MWCNTs/FeCp2 samples was determined by varying the duration of the light pulse. Experimental results show that ignition is obtained with a pulse duration of 110 ms and a MIE density of 266 mJ/cm2. The significant reduction of the MIE value (10-40%), observed when H2Pp in powder form was added to the MWCNTs/FeCp2 mixtures, was ascribed to the improved photoexcitation and charge transfer properties of the lipophilic porphyrin molecules. PMID- 29342881 TI - Development of Self-Assembled Nanoribbon Bound Peptide-Polyaniline Composite Scaffolds and Their Interactions with Neural Cortical Cells. AB - Degenerative neurological disorders and traumatic brain injuries cause significant damage to quality of life and often impact survival. As a result, novel treatments are necessary that can allow for the regeneration of neural tissue. In this work, a new biomimetic scaffold was designed with potential for applications in neural tissue regeneration. To develop the scaffold, we first prepared a new bolaamphiphile that was capable of undergoing self-assembly into nanoribbons at pH 7. Those nanoribbons were then utilized as templates for conjugation with specific proteins known to play a critical role in neural tissue growth. The template (Ile-TMG-Ile) was prepared by conjugating tetramethyleneglutaric acid with isoleucine and the ability of the bolaamphiphile to self-assemble was probed at a pH range of 4 through 9. The nanoribbons formed under neutral conditions were then functionalized step-wise with the basement membrane protein laminin, the neurotropic factor artemin and Type IV collagen. The conductive polymer polyaniline (PANI) was then incorporated through electrostatic and pi-pi stacking interactions to the scaffold to impart electrical properties. Distinct morphology changes were observed upon conjugation with each layer, which was also accompanied by an increase in Young's Modulus as well as surface roughness. The Young's Modulus of the dried PANI-bound biocomposite scaffolds was found to be 5.5 GPa, indicating the mechanical strength of the scaffold. Thermal phase changes studied indicated broad endothermic peaks upon incorporation of the proteins which were diminished upon binding with PANI. The scaffolds also exhibited in vitro biodegradable behavior over a period of three weeks. Furthermore, we observed cell proliferation and short neurite outgrowths in the presence of rat neural cortical cells, confirming that the scaffolds may be applicable in neural tissue regeneration. The electrochemical properties of the scaffolds were also studied by generating I-V curves by conducting cyclic voltammetry. Thus, we have developed a new biomimetic composite scaffold that may have potential applications in neural tissue regeneration. PMID- 29342879 TI - Ophthalmic Drug Delivery Systems for Antibiotherapy-A Review. AB - The last fifty years, ophthalmic drug delivery research has made much progress, challenging scientists about the advantages and limitations of this drug delivery approach. Topical eye drops are the most commonly used formulation in ocular drug delivery. Despite the good tolerance for patients, this topical administration is only focus on the anterior ocular diseases and had a high precorneal loss of drugs due to the tears production and ocular barriers. Antibiotics are popularly used in solution or in ointment for the ophthalmic route. However, their local bioavailability needs to be improved in order to decrease the frequency of administrations and the side effects and to increase their therapeutic efficiency. For this purpose, sustained release forms for ophthalmic delivery of antibiotics were developed. This review briefly describes the ocular administration with the ocular barriers and the currently topical forms. It focuses on experimental results to bypass the limitations of ocular antibiotic delivery with new ocular technology as colloidal and in situ gelling systems or with the improvement of existing forms as implants and contact lenses. Nanotechnology is presently a promising drug delivery way to provide protection of antibiotics and improve pathway through ocular barriers and deliver drugs to specific target sites. PMID- 29342883 TI - Development of SiC Nanoparticles and Second Phases Synergistically Reinforced Mg Based Composites Processed by Multi-Pass Forging with Varying Temperatures. AB - In this study, SiC nanoparticles were added into matrix alloy through a combination of semisolid stirring and ultrasonic vibration while dynamic precipitation of second phases was obtained through multi-pass forging with varying temperatures. During single-pass forging of the present composite, as the deformation temperature increased, the extent of recrystallization increased, and grains were refined due to the inhibition effect of the increasing amount of dispersed SiC nanoparticles. A small amount of twins within the SiC nanoparticle dense zone could be found while the precipitated phases of Mg17Al12 in long strips and deformation bands with high density dislocations were formed in the particle sparse zone after single-pass forging at 350 degrees C. This indicated that the particle sparse zone was mainly deformed by dislocation slip while the nanoparticle dense zone may have been deformed by twinning. The yield strength and ultimate tensile strength of the composites were gradually enhanced through increasing the single-pass forging temperature from 300 degrees C to 400 degrees C, which demonstrated that initial high forging temperature contributed to the improvement of the mechanical properties. During multi-pass forging with varying temperatures, the grain size of the composite was gradually decreased while the grain size distribution tended to be uniform with reducing the deformation temperature and extending the forging passes. In addition, the amount of precipitated second phases was significantly increased compared with that after multi-pass forging under a constant temperature. The improvement in the yield strength of the developed composite was related to grain refinement strengthening and Orowan strengthening resulting from synergistical effect of the externally applied SiC nanoparticles and internally precipitated second phases. PMID- 29342884 TI - Effect of the Extraction Process on the Biological Activity of Lyophilized Apricot Extracts Recovered from Apricot Pomace. AB - The preservation of polyphenols in fruits by lyophilization has gained great interest in the recent decades. The present study aims to assess the impact of the pre-treatment extraction methods heat-assisted extraction (HAE) and infrared (IR) on lyophilized apricot pomace extracts. Then to test the conservation of polyphenols quantities as well as their bioactivities (antiradical and antibacterial) in lyophilized extract. An aqueous extract was obtained through either heat-assisted extraction or infrared pre-treatments then lyophilized to obtain a dried form. Results showed that the content of polyphenols, the antiradical and antibacterial activities in lyophilized extracts exhibited a slighter decrease in infrared sample compared to the heat-assisted extraction ones. The High-performance liquid chromatography (HPLC) analysis showed that lyophilized extracts IR and HAE preserved the same phenolic molecules (rutin, catechin and epicatechin) detected in liquid extracts (IR and HAE) with a smaller yield. Lyophilization can be used as a widely process in the food industry to conserve many bioactive molecules. PMID- 29342882 TI - Implication of Soluble Forms of Cell Adhesion Molecules in Infectious Disease and Tumor: Insights from Transgenic Animal Models. AB - Cell adhesion molecules (CAMs) are surface ligands, usually glycoproteins, which mediate cell-to-cell adhesion. They play a critical role in maintaining tissue integrity and mediating migration of cells, and some of them also act as viral receptors. It has been known that soluble forms of the viral receptors bind to the surface glycoproteins of the viruses and neutralize them, resulting in inhibition of the viral entry into cells. Nectin-1 is one of important CAMs belonging to immunoglobulin superfamily and herpesvirus entry mediator (HVEM) is a member of the tumor necrosis factor (TNF) receptor family. Both CAMs also act as alphaherpesvirus receptor. Transgenic mice expressing the soluble form of nectin-1 or HVEM showed almost complete resistance against the alphaherpesviruses. As another CAM, sialic acid-binding immunoglobulin-like lectins (Siglecs) that recognize sialic acids are also known as an immunoglobulin superfamily member. Siglecs play an important role in the regulation of immune cell functions in infectious diseases, inflammation, neurodegeneration, autoimmune diseases and cancer. Siglec-9 is one of Siglecs and capsular polysaccharide (CPS) of group B Streptococcus (GBS) binds to Siglec-9 on neutrophils, leading to suppress host immune response and provide a survival advantage to the pathogen. In addition, Siglec-9 also binds to tumor-produced mucins such as MUC1 to lead negative immunomodulation. Transgenic mice expressing the soluble form of Siglec-9 showed significant resistance against GBS infection and remarkable suppression of MUC1 expressing tumor proliferation. This review describes recent developments in the understanding of the potency of soluble forms of CAMs in the transgenic mice and discusses potential therapeutic interventions that may alter the outcomes of certain diseases. PMID- 29342887 TI - A Novel Synthesis Routine for Woodwardite and Its Affinity towards Light (La, Ce, Nd) and Heavy (Gd and Y) Rare Earth Elements. AB - A synthetic Cu-Al-SO4 layered double hydroxide (LDH), analogue to the mineral woodwardite [Cu1-xAlx(SO4)x/2(OH)2.nH2O], with x < 0.5 and n <= 3x/2, was synthesised by adding a solution of Cu and Al sulphates to a solution with NaOH. The pH values were kept constant at 8.0 and 10.0 by a continuous addition of NaOH. The material obtained had poor crystallinity, turbostratic structure, and consisted of nanoscopic crystallites. The analyses performed in order to characterise the obtained materials (X-ray diffraction (XRD), thermogravimetry (TG), and Fourier Transform Infra-Red (FTIR) spectroscopy) showed that the Cu-Al SO4 LDH is very similar to woodwardite, although it has a smaller layer spacing, presumably due to a lesser water content than in natural samples. The synthesis was performed by adding light rare earth elements (LREEs) (La, Ce, and Nd) and heavy rare earth elements (HREEs) (Gd and Y) in order to test the affinity of the Cu-Al-SO4 LDH to the incorporation of REEs. The concentration of rare earth elements (REEs) in the solid fraction was in the range of 3.5-8 wt %. The results showed a good affinity for HREE and Nd, especially for materials synthesised at pH 10.0, whereas the affinities for Ce and La were much lower or non-existent. The thermal decomposition of the REE-doped materials generates a mixture of Cu, Al, and REE oxides, making them interesting as precursors in REE oxide synthesis. PMID- 29342886 TI - A Xylenol Orange-Based Screening Assay for the Substrate Specificity of Flavin Dependent para-Phenol Oxidases. AB - Vanillyl alcohol oxidase (VAO) and eugenol oxidase (EUGO) are flavin-dependent enzymes that catalyse the oxidation of para-substituted phenols. This makes them potentially interesting biocatalysts for the conversion of lignin-derived aromatic monomers to value-added compounds. To facilitate their biocatalytic exploitation, it is important to develop methods by which variants of the enzymes can be rapidly screened for increased activity towards substrates of interest. Here, we present the development of a screening assay for the substrate specificity of para-phenol oxidases based on the detection of hydrogen peroxide using the ferric-xylenol orange complex method. The assay was used to screen the activity of VAO and EUGO towards a set of twenty-four potential substrates. This led to the identification of 4-cyclopentylphenol as a new substrate of VAO and EUGO and 4-cyclohexylphenol as a new substrate of VAO. Screening of a small library of VAO and EUGO active-site variants for alterations in their substrate specificity led to the identification of a VAO variant (T457Q) with increased activity towards vanillyl alcohol (4-hydroxy-3-methoxybenzyl alcohol) and a EUGO variant (V436I) with increased activity towards chavicol (4-allylphenol) and 4 cyclopentylphenol. This assay provides a quick and efficient method to screen the substrate specificity of para-phenol oxidases, facilitating the enzyme engineering of known para-phenol oxidases and the evaluation of the substrate specificity of novel para-phenol oxidases. PMID- 29342885 TI - Alcohol-Derived Acetaldehyde Exposure in the Oral Cavity. AB - Alcohol is classified by the International Agency for Research on Cancer (IARC) as a human carcinogen and its consumption has been associated to an increased risk of liver, breast, colorectum, and upper aerodigestive tract (UADT) cancers. Its mechanisms of carcinogenicity remain unclear and various hypotheses have been formulated depending on the target organ considered. In the case of UADT cancers, alcohol's major metabolite acetaldehyde seems to play a crucial role. Acetaldehyde reacts with DNA inducing modifications, which, if not repaired, can result in mutations and lead to cancer development. Despite alcohol being mainly metabolized in the liver, several studies performed in humans found higher levels of acetaldehyde in saliva compared to those found in blood immediately after alcohol consumption. These results suggest that alcohol-derived acetaldehyde exposure may occur in the oral cavity independently from liver metabolism. This hypothesis is supported by our recent results showing the presence of acetaldehyde-related DNA modifications in oral cells of monkeys and humans exposed to alcohol, overall suggesting that the alcohol metabolism in the oral cavity is an independent cancer risk factor. This review article will focus on illustrating the factors modulating alcohol-derived acetaldehyde exposure and effects in the oral cavity. PMID- 29342888 TI - Surface Properties of Nanostructured, Porous ZnO Thin Films Prepared by Direct Current Reactive Magnetron Sputtering. AB - In this paper, the results of detailed X-ray photoelectron spectroscopy (XPS) studies combined with atomic force microscopy (AFM) investigation concerning the local surface chemistry and morphology of nanostructured ZnO thin films are presented. They have been deposited by direct current (DC) reactive magnetron sputtering under variable absolute Ar/O2 flows (in sccm): 3:0.3; 8:0.8; 10:1; 15:1.5; 20:2, and 30:3, respectively. The XPS studies allowed us to obtain the information on: (1) the relative concentrations of main elements related to their surface nonstoichiometry; (2) the existence of undesired C surface contaminations; and (3) the various forms of surface bondings. It was found that only for the nanostructured ZnO thin films, deposited under extremely different conditions, i.e., for Ar/O2 flow ratio equal to 3:0.3 and 30:3 (in sccm), respectively, an evident and the most pronounced difference had been observed. The same was for the case of AFM experiments. What is crucial, our experiments allowed us to find the correlation mainly between the lowest level of C contaminations and the local surface morphology of nanostructured ZnO thin films obtained at the highest Ar/O2 ratio (30:3), for which the densely packaged (agglomerated) nanograins were observed, yielding a smaller surface area for undesired C adsorption. The obtained information can help in understanding the reason of still rather poor gas sensor characteristics of ZnO based nanostructures including the undesired ageing effect, being of a serious barrier for their potential application in the development of novel gas sensor devices. PMID- 29342890 TI - Polymer-Ceramic Composite Scaffolds: The Effect of Hydroxyapatite and beta-tri Calcium Phosphate. AB - The design of bioactive scaffolds with improved mechanical and biological properties is an important topic of research. This paper investigates the use of polymer-ceramic composite scaffolds for bone tissue engineering. Different ceramic materials (hydroxyapatite (HA) and beta-tri-calcium phosphate (TCP)) were mixed with poly-epsilon-caprolactone (PCL). Scaffolds with different material compositions were produced using an extrusion-based additive manufacturing system. The produced scaffolds were physically and chemically assessed, considering mechanical, wettability, scanning electron microscopy and thermal gravimetric tests. Cell viability, attachment and proliferation tests were performed using human adipose derived stem cells (hADSCs). Results show that scaffolds containing HA present better biological properties and TCP scaffolds present improved mechanical properties. It was also possible to observe that the addition of ceramic particles had no effect on the wettability of the scaffolds. PMID- 29342891 TI - Influence of the Composition, Structure, and Physical and Chemical Properties of Aluminium-Oxide-Based Sorbents on Water Adsorption Ability. AB - Interaction between the water adsorption ability of aluminium-oxide-based sorbents and their chemical composition, acid-base properties of the surface, and textural characteristics has been analysed. Alumina desiccants were synthesized with the centrifugal-thermal activation of gibbsite followed by the hydration of the gibbsite under mild conditions. It was demonstrated that the multicyclic adsorption regeneration of samples under realistic conditions results in structural transformations and changes in the acidity of their surfaces and water adsorption ability. The modification of pseudoboehmite with alkali ions increases surface basicity and the dynamic capacity of adsorbents relating to water vapours. Equations have been presented that describe the adsorption and desorption processes taking place during water vapour adsorption with the materials studied. PMID- 29342892 TI - Next Generation Wireless Technologies for Internet of Things. AB - In the fast-growing Internet of Things (IoT)[...]. PMID- 29342889 TI - A Case-Control Study of the Genetic Variability in Reactive Oxygen Species Metabolizing Enzymes in Melanoma Risk. AB - Recent studies have shown that ultraviolet (UV)-induced chemiexcitation of melanin fragments leads to DNA damage; and chemiexcitation of melanin fragments requires reactive oxygen species (ROS), as ROS excite an electron in the melanin fragments. In addition, ROS also cause DNA damages on their own. We hypothesized that ROS producing and metabolizing enzymes were major contributors in UV-driven melanomas. In this case-control study of 349 participants, we genotyped 23 prioritized single nucleotide polymorphisms (SNPs) in nicotinamide adenine dinucleotide phosphate (NADPH) oxidases 1 and 4 (NOX1 and NOX4, respectively), CYBA, RAC1, superoxide dismutases (SOD1, SOD2, and SOD3) and catalase (CAT), and analyzed their associated melanoma risk. Five SNPs, namely rs1049255 (CYBA), rs4673 (CYBA), rs10951982 (RAC1), rs8031 (SOD2), and rs2536512 (SOD3), exhibited significant genotypic frequency differences between melanoma cases and healthy controls. In simple logistic regression, RAC1 rs10951982 (odds ratio (OR) 8.98, 95% confidence interval (CI): 5.08 to 16.44; p < 0.001) reached universal significance (p = 0.002) and the minor alleles were associated with increased risk of melanoma. In contrast, minor alleles in SOD2 rs8031 (OR 0.16, 95% CI: 0.06 to 0.39; p < 0.001) and SOD3 rs2536512 (OR 0.08, 95% CI: 0.01 to 0.31; p = 0.001) were associated with reduced risk of melanoma. In multivariate logistic regression, RAC1 rs10951982 (OR 6.15, 95% CI: 2.98 to 13.41; p < 0.001) remained significantly associated with increased risk of melanoma. Our results highlighted the importance of RAC1, SOD2, and SOD3 variants in the risk of melanoma. PMID- 29342893 TI - QTL Mapping for Fiber Quality and Yield Traits Based on Introgression Lines Derived from Gossypium hirsutum * G. tomentosum. AB - The tetraploid species Gossypium hirsutum is cultivated widely throughout the world with high yield and moderate fiber quality, but its genetic basis is narrow. A set of 107 introgression lines (ILs) was developed with an interspecific cross using G. hirsutumacc. 4105 as the recurrent parent and G. tomentosum as the donor parent. A specific locus amplified fragment sequencing (SLAF-seq) strategy was used to obtain high-throughput single nucleotide polymorphism (SNP) markers. In total, 3157 high-quality SNP markers were obtained and further used for identification of quantitative trait loci (QTLs) for fiber quality and yield traits evaluated in multiple environments. In total, 74 QTLs were detected that were associated with five fiber quality traits (30 QTLs) and eight yield traits (44 QTLs), with 2.02-30.15% of the phenotypic variance explained (PVE), and 69 markers were found to be associated with these thirteen traits. Eleven chromosomes in the A sub-genome (At) harbored 47 QTLs, and nine chromosomes in the D sub-genome (Dt) harbored 27 QTLs. More than half (44 QTLs = 59.45%) showed positive additive effects for fiber and yield traits. Five QTL clusters were identified, with three in the At, comprised of thirteen QTLs, and two in the Dt comprised of seven QTLs. The ILs developed in this study and the identified QTLs will facilitate further molecular breeding for improvement of Upland cotton in terms of higher yield with enhanced fiber quality. PMID- 29342894 TI - Crystallization of TiO2 Nanotubes by In Situ Heating TEM. AB - The thermally-induced crystallization of anodically grown TiO2 amorphous nanotubes has been studied so far under ambient pressure conditions by techniques such as differential scanning calorimetry and in situ X-ray diffraction, then looking at the overall response of several thousands of nanotubes in a carpet arrangement. Here we report a study of this phenomenon based on an in situ transmission electron microscopy approach that uses a twofold strategy. First, a group of some tens of TiO2 amorphous nanotubes was heated looking at their electron diffraction pattern change versus temperature, in order to determine both the initial temperature of crystallization and the corresponding crystalline phases. Second, the experiment was repeated on groups of few nanotubes, imaging their structural evolution in the direct space by spherical aberration-corrected high resolution transmission electron microscopy. These studies showed that, differently from what happens under ambient pressure conditions, under the microscope's high vacuum (p < 10-5 Pa) the crystallization of TiO2 amorphous nanotubes starts from local small seeds of rutile and brookite, which then grow up with the increasing temperature. Besides, the crystallization started at different temperatures, namely 450 and 380 degrees C, when the in situ heating was performed irradiating the sample with electron beam energy of 120 or 300 keV, respectively. This difference is due to atomic knock-on effects induced by the electron beam with diverse energy. PMID- 29342895 TI - Optimization of Extraction Conditions and Characterization of Pepsin-Solubilised Collagen from Skin of Giant Croaker (Nibea japonica). AB - In the present study, response surface methodology was performed to investigate the effects of extraction parameters on pepsin-solubilised collagen (PSC) from the skin of the giant croaker Nibea japonica. The optimum extraction conditions of PSC were as follows: concentration of pepsin was 1389 U/g, solid-liquid ratio was 1:57 and hydrolysis time was 8.67 h. Under these conditions, the extraction yield of PSC was up to 84.85%, which is well agreement with the predict value of 85.03%. The PSC from Nibea japonica skin was then characterized as type I collagen by using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE). The fourier transforms infrared spetroscopy (FTIR) analysis revealed that PSC maintains its triple-helical structure by the hydrogen bond. All PSCs were soluble in the pH range of 1.0-4.0 and decreases in solubility were observed at neutral or alkaline conditions. All PSCs had a decrease in solubility in the presence of sodium chloride, especially with a concentration above 2%. So, the Nibea japonica skin could serve as another potential source of collagen. PMID- 29342896 TI - How Does Counselling in a Stationary Health Care Setting Affect the Attendance in a Standardised Sports Club Programme? Process Evaluation of a Quasi-Experimental Study. AB - Actions in partnership across sectors is one principle for the promotion of health behaviours. The objective of this study was to describe the participation in a sports club-based exercise programme-named JACKPOT-following an intervention in a health care setting. Focus was given to the recruitment into JACKPOT, the attendance level, and whether the different programme elements were implemented as intented. The practicability of the project was also retrospectively rated. Participants were 238 inactive people (50% women) between 30 and 65 years of age who attended a health resort. Of these, 77% were assigned to the intervention group (IG). The recruitment into the 12 JACKPOT sessions and the attendance levels were recorded via attendance lists. The implementation of the intervention standards was assessed with structured interviews and participatory observation. The Pragmatic Explanatory Continuum Indicator Summary (PRECIS)-2 tool served to rate the practicability of the project. Almost 50% of the IG subjects attended JACKPOT sessions at least once and 54% of the attenders visited >=75% of the 12 sessions. Some of the programme elements were not delivered fully. The process evaluation results showed that the project worked in a real-world setting, and also uncovered potential reasons such as incomplete information delivery for the moderate recruitment and attendance level. PMID- 29342897 TI - Replication Strategy for Spatiotemporal Data Based on Distributed Caching System. AB - The replica strategy in distributed cache can effectively reduce user access delay and improve system performance. However, developing a replica strategy suitable for varied application scenarios is still quite challenging, owing to differences in user access behavior and preferences. In this paper, a replication strategy for spatiotemporal data (RSSD) based on a distributed caching system is proposed. By taking advantage of the spatiotemporal locality and correlation of user access, RSSD mines high popularity and associated files from historical user access information, and then generates replicas and selects appropriate cache node for placement. Experimental results show that the RSSD algorithm is simple and efficient, and succeeds in significantly reducing user access delay. PMID- 29342899 TI - Smartphone Spectrometers. AB - Smartphones are playing an increasing role in the sciences, owing to the ubiquitous proliferation of these devices, their relatively low cost, increasing processing power and their suitability for integrated data acquisition and processing in a 'lab in a phone' capacity. There is furthermore the potential to deploy these units as nodes within Internet of Things architectures, enabling massive networked data capture. Hitherto, considerable attention has been focused on imaging applications of these devices. However, within just the last few years, another possibility has emerged: to use smartphones as a means of capturing spectra, mostly by coupling various classes of fore-optics to these units with data capture achieved using the smartphone camera. These highly novel approaches have the potential to become widely adopted across a broad range of scientific e.g., biomedical, chemical and agricultural application areas. In this review, we detail the exciting recent development of smartphone spectrometer hardware, in addition to covering applications to which these units have been deployed, hitherto. The paper also points forward to the potentially highly influential impacts that such units could have on the sciences in the coming decades. PMID- 29342898 TI - Associations between Zinc Deficiency and Metabolic Abnormalities in Patients with Chronic Liver Disease. AB - Zinc (Zn) is an essential trace element which has favorable antioxidant, anti inflammatory, and apoptotic effects. The liver mainly plays a crucial role in maintaining systemic Zn homeostasis. Therefore, the occurrence of chronic liver diseases, such as chronic hepatitis, liver cirrhosis, or fatty liver, results in the impairment of Zn metabolism, and subsequently Zn deficiency. Zn deficiency causes plenty of metabolic abnormalities, including insulin resistance, hepatic steatosis and hepatic encephalopathy. Inversely, metabolic abnormalities like hypoalbuminemia in patients with liver cirrhosis often result in Zn deficiency. Recent studies have revealed the putative mechanisms by which Zn deficiency evokes a variety of metabolic abnormalities in chronic liver disease. Zn supplementation has shown beneficial effects on such metabolic abnormalities in experimental models and actual patients with chronic liver disease. This review summarizes the pathogenesis of metabolic abnormalities deriving from Zn deficiency and the favorable effects of Zn administration in patients with chronic liver disease. In addition, we also highlight the interactions between Zn and other trace elements, vitamins, amino acids, or hormones in such patients. PMID- 29342900 TI - Increasing the Intensity over Time of an Electric-Assist Bike Based on the User and Route: The Bike Becomes the Gym. AB - Nowadays, many citizens have busy days that make finding time for physical activity difficult. Thus, it is important to provide citizens with tools that allow them to introduce physical activity into their lives as part of the day's routine. This article proposes an app for an electric pedal-assist-system (PAS) bicycle that increases the pedaling intensity so the bicyclist can achieve higher and higher levels of physical activity. The app includes personalized assist levels that have been adapted to the user's strength/ability and a profile of the route, segmented according to its slopes. Additionally, a social component motivates interaction and competition between users based on a scoring system that shows the level of their performances. To test the training module, a case study in three different European countries lasted four months and included nine people who traveled 551 routes. The electric PAS bicycle with the app that increases intensity of physical activity shows promise for increasing levels of physical activity as a regular part of the day. PMID- 29342901 TI - Omega-3 Polyunsaturated Fatty Acids Time-Dependently Reduce Cell Viability and Oncogenic MicroRNA-21 Expression in Estrogen Receptor-Positive Breast Cancer Cells (MCF-7). AB - The omega-3 polyunsaturated fatty acid (n-3 PUFA), alpha-linolenic acid (ALA), and its metabolites, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), independently reduce the growth of breast cancer cells in vitro, but the mechanisms, which may involve microRNA (miRNA), are still unclear. The expression of the oncomiR, miR-21, is reduced by DHA treatment, but the effects of ALA on miR-21, alone or combined with EPA and DHA under physiologically relevant concentrations, have not been investigated. The effects of ALA alone and +/-EPA and DHA at the blood molar ratios seen in either humans (1.0:1.0:2.5, ALA:EPA:DHA) or mice (1.0:0.4:3.1, ALA:EPA:DHA) post flaxseed oil consumption (containing ALA) were assessed in vitro in MCF-7 breast cancer cells. Cell viability and the expression of miR-21 and its molecular target, phosphatase and tension homolog (PTEN, gene and protein), at different time points, were examined. At 1, 3, 48 and 96 h ALA alone and 24 h animal ratio treatments significantly reduced MCF-7 cell viability, while 1 and 3 h ALA alone and human and animal ratio treatments all significantly reduced miR-21 expression, and 24 h animal ratio treatment reduced miR-21 expression; these effects were not associated with changes in PTEN gene or protein expressions. We showed for the first time that ALA alone or combined with EPA and DHA at levels seen in human and animal blood post-ALA consumption can significantly reduce cell viability and modulate miR-21 expression in a time- and concentration-dependent manner, with the animal ratio containing higher DHA having a greater effect. The time dependency of miR-21 effects suggests the significance of considering time as a variable in miRNA studies, particularly of miR-21. PMID- 29342902 TI - Design and Testing of a Flexible Inclinometer Probe for Model Tests of Landslide Deep Displacement Measurement. AB - The physical model test of landslides is important for studying landslide structural damage, and parameter measurement is key in this process. To meet the measurement requirements for deep displacement in landslide physical models, an automatic flexible inclinometer probe with good coupling and large deformation capacity was designed. The flexible inclinometer probe consists of several gravity acceleration sensing units that are protected and positioned by silicon encapsulation, all the units are connected to a 485-comunication bus. By sensing the two-axis tilt angle, the direction and magnitude of the displacement for a measurement unit can be calculated, then the overall displacement is accumulated according to all units, integrated from bottom to top in turn. In the conversion from angle to displacement, two spline interpolation methods are introduced to correct and resample the data; one is to interpolate the displacement after conversion, and the other is to interpolate the angle before conversion; compared with the result read from checkered paper, the latter is proved to have a better effect, with an additional condition that the displacement curve move up half the length of the unit. The flexible inclinometer is verified with respect to its principle and arrangement by a laboratory physical model test, and the test results are highly consistent with the actual deformation of the landslide model. PMID- 29342904 TI - Improved Coarray Interpolation Algorithms with Additional Orthogonal Constraint for Cyclostationary Signals. AB - Many modulated signals exhibit a cyclostationarity property, which can be exploited in direction-of-arrival (DOA) estimation to effectively eliminate interference and noise. In this paper, our aim is to integrate the cyclostationarity with the spatial domain and enable the algorithm to estimate more sources than sensors. However, DOA estimation with a sparse array is performed in the coarray domain and the holes within the coarray limit the usage of the complete coarray information. In order to use the complete coarray information to increase the degrees-of-freedom (DOFs), sparsity-aware-based methods and the difference coarray interpolation methods have been proposed. In this paper, the coarray interpolation technique is further explored with cyclostationary signals. Besides the difference coarray model and its corresponding Toeplitz completion formulation, we build up a sum coarray model and formulate a Hankel completion problem. In order to further improve the performance of the structured matrix completion, we define the spatial spectrum sampling operations and the derivative (conjugate) correlation subspaces, which can be exploited to construct orthogonal constraints for the autocorrelation vectors in the coarray interpolation problem. Prior knowledge of the source interval can also be incorporated into the problem. Simulation results demonstrate that the additional constraints contribute to a remarkable performance improvement. PMID- 29342903 TI - Application of Nanoparticle Technologies in the Combat against Anti-Microbial Resistance. AB - Anti-microbial resistance is a growing problem that has impacted the world and brought about the beginning of the end for the old generation of antibiotics. Increasingly, more antibiotics are being prescribed unnecessarily and this reckless practice has resulted in increased resistance towards these drugs, rendering them useless against infection. Nanotechnology presents a potential answer to anti-microbial resistance, which could stimulate innovation and create a new generation of antibiotic treatments for future medicines. Preserving existing antibiotic activity through novel formulation into or onto nanotechnologies can increase clinical longevity of action against infection. Additionally, the unique physiochemical properties of nanoparticles can provide new anti-bacterial modes of action which can also be explored. Simply concentrating on antibiotic prescribing habits will not resolve the issue but rather mitigate it. Thus, new scientific approaches through the development of novel antibiotics and formulations is required in order to employ a new generation of therapies to combat anti-microbial resistance. PMID- 29342905 TI - Closed-Form Algorithm for 3-D Near-Field OFDM Signal Localization under Uniform Circular Array. AB - Due to its widespread application in communications, radar, etc., the orthogonal frequency division multiplexing (OFDM) signal has become increasingly urgent in the field of localization. Under uniform circular array (UCA) and near-field conditions, this paper presents a closed-form algorithm based on phase difference for estimating the three-dimensional (3-D) location (azimuth angle, elevation angle, and range) of the OFDM signal. In the algorithm, considering that it is difficult to distinguish the frequency of the OFDM signal's subcarriers and the phase-based method is always affected by errors of the frequency estimation, this paper employs sparse representation (SR) to obtain the super-resolution frequencies and the corresponding phases of subcarriers. Further, as the phase differences of the adjacent sensors including azimuth angle, elevation angle and range parameters can be expressed as indefinite equations, the near-field OFDM signal's 3-D location is obtained by employing the least square method, where the phase differences are based on the average of the estimated subcarriers. Finally, the performance of the proposed algorithm is demonstrated by several simulations. PMID- 29342906 TI - Modelling and Characterization of Effective Thermal Conductivity of Single Hollow Glass Microsphere and Its Powder. AB - Tiny hollow glass microsphere (HGM) can be applied for designing new light weighted and thermal-insulated composites as high strength core, owing to its hollow structure. However, little work has been found for studying its own overall thermal conductivity independent of any matrix, which generally cannot be measured or evaluated directly. In this study, the overall thermal conductivity of HGM is investigated experimentally and numerically. The experimental investigation of thermal conductivity of HGM powder is performed by the transient plane source (TPS) technique to provide a reference to numerical results, which are obtained by a developed three-dimensional two-step hierarchical computational method. In the present method, three heterogeneous HGM stacking elements representing different distributions of HGMs in the powder are assumed. Each stacking element and its equivalent homogeneous solid counterpart are, respectively, embedded into a fictitious matrix material as fillers to form two equivalent composite systems at different levels, and then the overall thermal conductivity of each stacking element can be numerically determined through the equivalence of the two systems. The comparison of experimental and computational results indicates the present computational modeling can be used for effectively predicting the overall thermal conductivity of single HGM and its powder in a flexible way. Besides, it is necessary to note that the influence of thermal interfacial resistance cannot be removed from the experimental results in the TPS measurement. PMID- 29342907 TI - An Uncommon Case of Pediatric Esthesioneuroblastoma Presenting as SIADH: 18F-FDG PET/CT in Staging and Post-Therapeutic Assessment. AB - Esthesioneuroblastoma (ENB) is an uncommon neuroendocrine tumor originating from the olfactory neuroepithelium and accounts for 3-6% of all intranasal tumors [1]. ENBs can be locally aggressive and cause invasion and destruction of surrounding structures. Histological grading and clinical stage at presentation are highly predictive of survival and especially presence of lymph node and distant metastases are determining prognostic factors [2,3,4,5]. Thus, reliable imaging is essential in these patients. Conventional imaging modalities for staging ENB are magnetic resonance imaging (MRI) and computed tomography (CT). However, fluorine-18 fluoro-2-deoxy-d-glucose positron emission tomography/CT (18F-FDG PET/CT) has been reported as a valuable adjunct and was found to upstage 36% of ENB patients compared to conventional imaging [6]. We present a case demonstrating the diagnostic work-up and follow-up with 18F-FDG PET/CT in a young patient with ENB with a highly atypical clinical presentation. PMID- 29342908 TI - Rapid 3D Reconstruction for Image Sequence Acquired from UAV Camera. AB - In order to reconstruct three-dimensional (3D) structures from an image sequence captured by unmanned aerial vehicles' camera (UAVs) and improve the processing speed, we propose a rapid 3D reconstruction method that is based on an image queue, considering the continuity and relevance of UAV camera images. The proposed approach first compresses the feature points of each image into three principal component points by using the principal component analysis method. In order to select the key images suitable for 3D reconstruction, the principal component points are used to estimate the interrelationships between images. Second, these key images are inserted into a fixed-length image queue. The positions and orientations of the images are calculated, and the 3D coordinates of the feature points are estimated using weighted bundle adjustment. With this structural information, the depth maps of these images can be calculated. Next, we update the image queue by deleting some of the old images and inserting some new images into the queue, and a structural calculation of all the images can be performed by repeating the previous steps. Finally, a dense 3D point cloud can be obtained using the depth-map fusion method. The experimental results indicate that when the texture of the images is complex and the number of images exceeds 100, the proposed method can improve the calculation speed by more than a factor of four with almost no loss of precision. Furthermore, as the number of images increases, the improvement in the calculation speed will become more noticeable. PMID- 29342909 TI - Spirostane-Type Saponins Obtained from Yucca schidigera. AB - It is well known that spirostane-type saponins show various bioactivities. In our on-going program of screening these kinds of constituents from natural products, Yucca schidigera was found to be rich in them, and nine new spirostanol saponins, Yucca spirostanosides A1 (1), A2 (2), B1 (3), B2 (4), B3 (5), C1 (6), C2 (7), C3 (8), and D1 (9), together with five known ones (10-14) were isolated from the plant. Their structures were elucidated by extensive spectroscopic methods, including 1D and 2D NMR and MS spectra, and comparing with published data. PMID- 29342910 TI - Academic Stress and Self-Regulation among University Students in Malaysia: Mediator Role of Mindfulness. AB - Academic stress is the most common emotional or mental state that students experience during their studies. Stress is a result of a wide range of issues, including test and exam burden, a demanding course, a different educational system, and thinking about future plans upon graduation. A sizeable body of literature in stress management research has found that self-regulation and being mindful will help students to cope up with the stress and dodge long-term negative consequences, such as substance abuse. The present study aims to investigate the influence of academic stress, self-regulation, and mindfulness among undergraduate students in Klang Valley, Malaysia, and to identify mindfulness as the mediator between academic stress and self-regulation. For this study, a total of 384 undergraduate students in Klang Valley, Malaysia were recruited. Using Correlational analysis, results revealed that there was a significant relationship between academic stress, self-regulation, and mindfulness. However, using SPSS mediational analysis, mindfulness did not prove the mediator role in the study. PMID- 29342915 TI - Correction: An Extended Damage Plasticity Model for Shotcrete: Formulation and Comparison with Other Shotcrete Models. AB - The authors would like to correct following typing errors: For (3) and (4), the correct expressions are given as[...]. PMID- 29342911 TI - Effects of Acanthopanax senticosus on Brain Injury Induced by Simulated Spatial Radiation in Mouse Model Based on Pharmacokinetics and Comparative Proteomics. AB - The active compounds in Acanthopanax senticosus (AS) have different pharmacokinetic characteristics in mouse models. Cmax and AUC of Acanthopanax senticosus polysaccharides (ASPS) were significantly reduced in radiation-injured mice, suggesting that the blood flow of mouse was blocked or slowed, due to the pathological state of ischemia and hypoxia, which are caused by radiation. In contrast, the ability of various metabolizing enzymes to inactivate, capacity of biofilm transport decrease, and lessening of renal blood flow accounts for radiation, resulting in the accumulation of syringin and eleutheroside E in the irradiated mouse. Therefore, there were higher pharmacokinetic parameters-AUC, MRT, and t1/2 of the two compounds in radiation-injured mouse, when compared with normal mouse. In order to investigate the intrinsic mechanism of AS on radiation injury, AS extract's protective effects on brain, the main part of mouse that suffered from radiation, were explored. The function of AS extract in repressing expression changes of radiation response proteins in prefrontal cortex (PFC) of mouse brain included tubulin protein family (alpha-, beta-tubulin subunits), dihydropyrimidinase-related protein 2 (CRMP2), gamma-actin, 14-3-3 protein family (14-3-3zeta, epsilon), heat shock protein 90beta (HSP90beta), and enolase 2. The results demonstrated the AS extract had positive effects on nerve cells' structure, adhesion, locomotion, fission, and phagocytosis, through regulating various action pathways, such as Hippo, phagosome, PI3K/Akt (phosphatidylinositol 3 kinase/protein kinase B), Neurotrophin, Rap1 (Ras-related protein RAP-1A), gap junction glycolysis/gluconeogenesis, and HIF-1 (Hypoxia-inducible factor 1) signaling pathways to maintain normal mouse neurological activity. All of the results indicated that AS may be a promising alternative medicine for the treatment of radiation injury in mouse brain. It would be tested that whether the bioactive ingredients of AS could be effective through the blood-brain barrier in the future. PMID- 29342916 TI - Coffee Intake and Liver Steatosis: A Population Study in a Mediterranean Area. AB - Coffee drinking seems to have several beneficial effects on health outcomes. However, the effect on hepatic steatosis, depending on a high alcohol consumption (AFLD, alcoholic fatty liver disease) or on metabolic factors (non-alcoholic fatty liver disease, NAFLD), is still equivocal. Thus, we aimed to explore the potential association between coffee consumption and the presence and severity of hepatic steatosis in people with NAFLD or AFLD. In this cross-sectional study, coffee drinking was recorded using a semi-quantitative food frequency questionnaire, and categorized as yes vs. no and as 0, 1, 2, >=3. The degree of fatty liver was assessed through a standardized ultrasound examination (score 0 to 6, with higher values reflecting higher severity). Liver steatosis was classified as NAFLD or AFLD on daily alcohol intake >30 g/day for men and >20 g/day for women. This study included 2819 middle-aged participants; the great majority were coffee drinkers (86.1%). After adjusting for 12 potential confounders, drinking coffee was not associated with decreased odds for NAFLD (n = 916) (odds ratio, OR = 0.93; 95% confidence intervals, CI: 0.72-1.20) or AFLD (n = 276) (OR = 1.20; 95% CI: 0.66-2.0). The consumption of coffee (categorized as yes vs. no), or an increased consumption of coffee were not associated with the presence of mild, moderate or severe liver steatosis in either NAFLD or AFLD. In conclusion, coffee intake was not associated with any lower odds of hepatic steatosis in either non-alcoholic or alcoholic forms in this large cohort of South Italian individuals. PMID- 29342917 TI - Nitrogen-Doped Carbon for Red Phosphorous Based Anode Materials for Lithium Ion Batteries. AB - Serving as conductive matrix and stress buffer, the carbon matrix plays a pivotal role in enabling red phosphorus to be a promising anode material for high capacity lithium ion batteries and sodium ion batteries. In this paper, nitrogen doping is proved to effective enhance the interface interaction between carbon and red phosphorus. In detail, the adsorption energy between phosphorus atoms and oxygen-containing functional groups on the carbon is significantly reduced by nitrogen doping, as verified by X-ray photoelectron spectroscopy. The adsorption mechanisms are further revealed on the basis of DFT (the first density functional theory) calculations. The RPNC (red phosphorus/nitrogen-doped carbon composite) material shows higher cycling stability and higher capacity than that of RPC (red phosphorus/carbon composite) anode. After 100 cycles, the RPNC still keeps discharge capacity of 1453 mAh g-1 at the current density of 300 mA g-1 (the discharge capacity of RPC after 100 cycles is 1348 mAh g-1). Even at 1200 mA g-1, the RPNC composite still delivers a capacity of 1178 mAh g-1. This work provides insight information about the interface interactions between composite materials, as well as new technology develops high performance phosphorus based anode materials. PMID- 29342919 TI - Treatment of Sciatica Following Uterine Cancer with Acupuncture: A Case Report. AB - For women, gynaecological or obstetrical disorders are second to disc prolapse as the most common cause of sciatica. As not many effective conventional treatments can be found for sciatica following uterine cancer, patients may seek assistance from complementary and alternative medicine. Here, we present a case of a woman with severe and chronic sciatica secondary to uterine cancer who experienced temporary relief from acupuncture. PMID- 29342920 TI - Asbestos Consumption in Mongolia: 1996-2014. AB - Asbestos is still used in Mongolia in the energy and construction sectors, among others. However, limited data is available on asbestos consumption and asbestos related disease in Mongolia. The purpose of this paper is to present the available information on the importation of asbestos into Mongolia. We used data on annual asbestos imports between 1996 and 2014 from Mongolian Customs Statistics and the National Council on Toxic and Hazardous Substances Affairs. The uses of this material are also presented with respect to chrysotile alone. Most asbestos is used for construction. Mongolia started using asbestos in the energy and construction industries as thermal insulation in 1961. Asbestos is still allowed for use in Mongolia under the Law on Toxic and Hazards Substances. There are no asbestos mines in Mongolia, and the manufacture of asbestos containing materials does not take place there. Thus, asbestos is mainly imported from China and Russia. Mongolia used 44,422 metric tons of asbestos-containing materials between 1996 and 2014. In Mongolia, with the current use of asbestos, there will be a continuing risk of developing asbestos-related diseases from past use, and proper oversight of asbestos-involving activities and the safe removal and disposal of asbestos must be considered. PMID- 29342918 TI - Abnormal Sphingolipid World in Inflammation Specific for Lysosomal Storage Diseases and Skin Disorders. AB - Research in recent years has shown that sphingolipids are essential signalling molecules for the proper biological and structural functioning of cells. Long term studies on the metabolism of sphingolipids have provided evidence for their role in the pathogenesis of a number of diseases. As many inflammatory diseases, such as lysosomal storage disorders and some dermatologic diseases, including psoriasis, atopic dermatitis and ichthyoses, are associated with the altered composition and metabolism of sphingolipids, more studies precisely determining the responsibilities of these compounds for disease states are required to develop novel pharmacological treatment opportunities. It is worth emphasizing that knowledge from the study of inflammatory metabolic diseases and especially the possibility of their treatment may lead to insight into related metabolic pathways, including those involved in the formation of the epidermal barrier and providing new approaches towards workable therapies. PMID- 29342921 TI - RNA-Targeted Therapies and Amyotrophic Lateral Sclerosis. AB - Amyotrophic lateral sclerosis (ALS) is a fatal motor disease in adults. Its pathophysiology remains mysterious, but tremendous advances have been made with the discovery of the most frequent mutations of its more common familial form linked to the C9ORF72 gene. Although most cases are still considered sporadic, these genetic mutations have revealed the role of RNA production, processing and transport in ALS, and may be important players in all ALS forms. There are no disease-modifying treatments for adult human neurodegenerative diseases, including ALS. As in spinal muscular atrophy, RNA-targeted therapies have been proposed as potential strategies for treating this neurodegenerative disorder. Successes achieved in various animal models of ALS have proven that RNA therapies are both safe and effective. With careful consideration of the applicability of such therapies in humans, it is possible to anticipate ongoing in vivo research and clinical trial development of RNA therapies for treating ALS. PMID- 29342923 TI - Electrical Design and Evaluation of Asynchronous Serial Bus Communication Network of 48 Sensor Platform LSIs with Single-Ended I/O for Integrated MEMS-LSI Sensors. AB - For installing many sensors in a limited space with a limited computing resource, the digitization of the sensor output at the site of sensation has advantages such as a small amount of wiring, low signal interference and high scalability. For this purpose, we have developed a dedicated Complementary Metal-Oxide Semiconductor (CMOS) Large-Scale Integration (LSI) (referred to as "sensor platform LSI") for bus-networked Micro-Electro-Mechanical-Systems (MEMS)-LSI integrated sensors. In this LSI, collision avoidance, adaptation and event-driven functions are simply implemented to relieve data collision and congestion in asynchronous serial bus communication. In this study, we developed a network system with 48 sensor platform LSIs based on Printed Circuit Board (PCB) in a backbone bus topology with the bus length being 2.4 m. We evaluated the serial communication performance when 48 LSIs operated simultaneously with the adaptation function. The number of data packets received from each LSI was almost identical, and the average sampling frequency of 384 capacitance channels (eight for each LSI) was 73.66 Hz. PMID- 29342922 TI - Can EGCG Alleviate Symptoms of Down Syndrome by Altering Proteolytic Activity? AB - Down syndrome (DS), also known as "trisomy 21", is a genetic disorder caused by the presence of all or part of a third copy of chromosome 21. Silencing these extra genes is beyond existing technology and seems to be impractical. A number of pharmacologic options have been proposed to change the quality of life and lifespan of individuals with DS. It was reported that treatment with epigallocatechin gallate (EGCG) improves cognitive performance in animal models and in humans, suggesting that EGCG may alleviate symptoms of DS. Traditionally, EGCG has been associated with the ability to reduce dual specificity tyrosine phosphorylation regulated kinase 1A activity, which is overexpressed in trisomy 21. Based on the data available in the literature, we propose an additional way in which EGCG might affect trisomy 21-namely by modifying the proteolytic activity of the enzymes involved. It is known that, in Down syndrome, the nerve growth factor (NGF) metabolic pathway is altered: first by downregulating tissue plasminogen activator (tPA) that activates plasminogen to plasmin, an enzyme converting proNGF to mature NGF; secondly, overexpression of metalloproteinase 9 (MMP-9) further degrades NGF, lowering the amount of mature NGF. EGCG inhibits MMP-9, thus protecting NGF. Urokinase (uPA) and tPA are activators of plasminogen, and uPA is inhibited by EGCG, but regardless of their structural similarity tPA is not inhibited. In this review, we describe mechanisms of proteolytic enzymes (MMP-9 and plasminogen activation system), their role in Down syndrome, their inhibition by EGCG, possible degradation of this polyphenol and the ability of EGCG and its degradation products to cross the blood-brain barrier. We conclude that known data accumulated so far provide promising evidence of MMP-9 inhibition by EGCG in the brain, which could slow down the abnormal degradation of NGF. PMID- 29342924 TI - Estrogen and Thyroid Hormone Receptor Activation by Medicinal Plants from Bahia, Brazil. AB - Background: A number of medicinal plants are traditionally used for metabolic disorders in Bahia state, Brazil. The aim of this study was to evaluate the estrogen receptor (ER) and thyroid receptor (TR) activation of crude extracts prepared from 20 plants. Methods: Species were extracted and assayed for receptor activation through both ER and TR gene-reporter assays, using 17beta-estradiol and triiodothyronine (T3), respectively, as the positive controls. Results: Cajanus cajan (Fabaceae), Abarema cochliacarpus (Fabaceae), and Borreria verticillata (Rubiaceae) were able to activate ER as much as the positive control (17beta-estradiol). These three plant species were also assayed for TR activation. At the concentration of 50 ug/mL, C. cajans exerted the highest positive modulation on TR, causing an activation of 59.9%, while B. verticillata and A. cochliacarpus caused 30.8% and 23.3%, respectively. Conclusions: Our results contribute towards the validation of the traditional use of C. cajans, B. verticillata, and A. cochliacarpus in the treatment of metabolic disorders related to ER and TR functions. The gene-reporter assay was proven effective in screening crude plant extracts for ER/TR activation, endorsing this methodology as an important tool for future bioprospection studies focused on identifying novel starting molecules for the development of estrogen and thyroid agonists. PMID- 29342925 TI - Synergistic Effect of Metal Oxide Nanoparticles on Cell Viability and Activation of MAP Kinases and NFkappaB. AB - In recent years, there has been an increase in the production of several types of nanoparticles (Nps) for different purposes. Several studies have been performed to analyse the toxicity induced by some of these individual Nps, but data are scarce on the potential hazards or beneficial effects induced by a range of nanomaterials in the same environment. The purpose of the study described here was to evaluate the toxicological effects induced by in vitro exposure of human cells to ZnO Nps in combination with different concentrations of other metal oxide Nps (Al2O3, CeO2, TiO2 and Y2O3). The results indicate that the presence of these Nps has synergistic or antagonistic effects on the cell death induced by ZnO Nps, with a quite marked beneficial effect observed when high concentrations of Nps were tested. Moreover, analysis by Western blot of the main components of the intracellular activation routes (MAPKs and NFkappaB) again showed that the presence of other Nps can affect cell activation. In conclusion, the presence of several Nps in the same environment modifies the functional activity of one individual Np. Further studies are required in order to elucidate the effects induced by combinations of nanomaterials. PMID- 29342926 TI - Envelope Correction of Micro-Motion Targets in the Terahertz ISAR Imaging. AB - Motion compensation is a crucial step to inverse synthetic aperture radar imaging, and envelope correction is the foundation of motion compensation. Research on envelope correction based on the small-angle imaging model has matured after years of development. However, the small-angle imaging model is not applicable to parameter estimation and imaging of micro-motion targets. According to the characteristics of the micro-motion targets and the superiorities of terahertz imaging radar, an envelope correction method for micro-motion targets in the terahertz region was proposed in this paper, including the jump error correction based on periodic correction and drift error compensation based on nonlinear fitting. Then a 330 GHz imaging radar and two experiments on corner reflectors and a warhead model were introduced. The validity of the method was verified by the experimental results, and the performance of the method was proved by the inverse Radon transform of the range profile sequences. PMID- 29342927 TI - The Application of Adaptive Behaviour Models: A Systematic Review. AB - Adaptive behaviour has been viewed broadly as an individual's ability to meet the standards of social responsibilities and independence; however, this definition has been a source of debate amongst researchers and clinicians. Based on the rich history and the importance of the construct of adaptive behaviour, the current study aimed to provide a comprehensive overview of the application of adaptive behaviour models to assessment tools, through a systematic review. A plethora of assessment measures for adaptive behaviour have been developed in order to adequately assess the construct; however, it appears that the only definition on which authors seem to agree is that adaptive behaviour is what adaptive behaviour scales measure. The importance of the construct for diagnosis, intervention and planning has been highlighted throughout the literature. It is recommended that researchers and clinicians critically review what measures of adaptive behaviour they are utilising and it is suggested that the definition and theory is revisited. PMID- 29342928 TI - Protein Oxidation and Sensory Quality of Brine-Injected Pork Loins Added Ascorbate or Extracts of Green Tea or Mate during Chill-Storage in High-Oxygen Modified Atmosphere. AB - Background: Ascorbate is often applied to enhance stability and robustness of brine-injected pork chops sold for retail, but may affect protein oxidation, while plant extracts are potential substitutes. Methods: Brine-injected pork chops (weight-gain ~12%, NaCl ~0.9%) prepared with ascorbate (225 ppm), green tea extract (25 ppm gallic acid equivalents (GAE)), or mate extract (25 ppm GAE) stored (5 degrees C, seven days) in high-oxygen atmosphere packaging (MAP: 80% O2 and 20% CO2) were analyzed for color changes, sensory quality, and protein oxidation compared to a control without antioxidant. Results: No significant differences were observed for green tea and mate extracts as compared to ascorbate when evaluated based on lipid oxidation derived off-flavors, except for stale flavor, which mate significantly reduced. All treatments increased the level of the protein oxidation product, alpha-aminoadipic semialdehyde as compared to the control, and ascorbate was further found to increase thiol loss and protein cross-linking, with a concomitant decrease in the sensory perceived tenderness. Conclusions: Green tea and mate were found to equally protect against lipid oxidation derived off-flavors, and mate showed less prooxidative activity towards proteins as compared to ascorbate, resulting in more tender meat. Mate is a valuable substitute for ascorbate in brine-injected pork chops. PMID- 29342929 TI - Morphology-Controlled Synthesis of Hematite Nanocrystals and Their Optical, Magnetic and Electrochemical Performance. AB - A series of alpha-Fe2O3 nanocrystals (NCs) with fascinating morphologies, such as hollow nanoolives, nanotubes, nanospindles, and nanoplates, were prepared through a simple template-free hydrothermal synthesis process. The results showed that the morphologies could be easily controlled by SO42- and H2PO4-. Physical property analysis showed that the alpha-Fe2O3 NCs exhibited shape- and size dependent ferromagnetic and optical behaviors. The absorption band peak of the alpha-Fe2O3 NCs could be tuned from 320 to 610 nm. Furthermore, when applied as electrode material for supercapacitor, the hollow olive-structure exhibited the highest capacitance (285.9 F.g-1) and an excellent long-term cycling stability (93% after 3000 cycles), indicating that it could serve as a candidate electrode material for a supercapacitor. PMID- 29342930 TI - Allergies in Animals and Humans. AB - Allergy to inhalant and food allergens affects many patients worldwide [...]. PMID- 29342932 TI - Interstitial Glucose and Physical Exercise in Type 1 Diabetes: Integrative Physiology, Technology, and the Gap In-Between. AB - Continuous and flash glucose monitoring systems measure interstitial fluid glucose concentrations within a body compartment that is dramatically altered by posture and is responsive to the physiological and metabolic changes that enable exercise performance in individuals with type 1 diabetes. Body fluid redistribution within the interstitial compartment, alterations in interstitial fluid volume, changes in rate and direction of fluid flow between the vasculature, interstitium and lymphatics, as well as alterations in the rate of glucose production and uptake by exercising tissues, make for caution when interpreting device read-outs in a rapidly changing internal environment during acute exercise. We present an understanding of the physiological and metabolic changes taking place with acute exercise and detail the blood and interstitial glucose responses with different forms of exercise, namely sustained endurance, high-intensity, and strength exercises in individuals with type 1 diabetes. Further, we detail novel technical information on currently available patient devices. As more health services and insurance companies advocate their use, understanding continuous and flash glucose monitoring for its strengths and limitations may offer more confidence for patients aiming to manage glycemia around exercise. PMID- 29342931 TI - Transcriptome Analysis Based on RNA-Seq in Understanding Pathogenic Mechanisms of Diseases and the Immune System of Fish: A Comprehensive Review. AB - In recent years, with the advent of next-generation sequencing along with the development of various bioinformatics tools, RNA sequencing (RNA-Seq)-based transcriptome analysis has become much more affordable in the field of biological research. This technique has even opened up avenues to explore the transcriptome of non-model organisms for which a reference genome is not available. This has made fish health researchers march towards this technology to understand pathogenic processes and immune reactions in fish during the event of infection. Recent studies using this technology have altered and updated the previous understanding of many diseases in fish. RNA-Seq has been employed in the understanding of fish pathogens like bacteria, virus, parasites, and oomycetes. Also, it has been helpful in unraveling the immune mechanisms in fish. Additionally, RNA-Seq technology has made its way for future works, such as genetic linkage mapping, quantitative trait analysis, disease-resistant strain or broodstock selection, and the development of effective vaccines and therapies. Until now, there are no reviews that comprehensively summarize the studies which made use of RNA-Seq to explore the mechanisms of infection of pathogens and the defense strategies of fish hosts. This review aims to summarize the contemporary understanding and findings with regard to infectious pathogens and the immune system of fish that have been achieved through RNA-Seq technology. PMID- 29342933 TI - In Vitro Anticoagulant Activity and Active Components of Safflower Injection. AB - Safflower injection is well-known as a traditional Chinese medicine used to improve the blood circulation. In this study, seven safflower injection samples from different companies were evaluated for their in vitro anticoagulant activity by measuring their activated partial thromboplastin time (APTT) and prothrombin time (PT) against human plasma. The screening results suggested that the safflower injections exhibited a significant prolonging influence on APTT (p < 0.05 vs. the control group), but not on prolonging PT (p > 0.05 vs. the control group). The safflower injection was separated into four fractions, and among them, fraction four demonstrated the most anticoagulant activity, with an APTT of 95.4 +/- 1.4 s at a concentration of 4.0 MUg/MUL (p < 0.01 vs. control group). In addition, three active components, p-hydroxybenzaldehyde, p-hydroxy-cinnamic acid, and (8Z)-decaene-4,6-diyne-1-O-beta-d-glucopyranoside were isolated from fraction four with Sephadex LH-20 and C18 column chromatography. All three active components showed significant prolonging of APTT (p < 0.05 vs. control group). Among them, p-hydroxy-cinnamic acid exhibited the most activity (p < 0.01 vs. control group). The results indicated that safflower injection strongly affects the intrinsic coagulation system, and we suggest that this might be the mechanism by which the safflower injection activates and promotes blood circulation. PMID- 29342934 TI - Exploring Positive Survivorship Experiences of Indigenous Australian Cancer Patients. AB - Amongst Indigenous Australians, "cancer" has negative connotations that detrimentally impact upon access to cancer care services. Barriers to accessing cancer services amongst Indigenous Australians are widely reported. In contrast, factors that facilitate this cohort to successfully navigate cancer care services ("enablers") are scarcely reported in the literature. Through qualitative interviews, this article examines factors that assist Indigenous Australians to have positive cancer experiences. Semi-structured interviews were conducted with twelve adult Indigenous oncology patients recruited from a tertiary hospital in Queensland, Australia during 2012-2014. Data generated from the interviews were independently reviewed by two researchers via inductive thematic analytical processes. Discussions followed by consensus on the major categories allowed conclusions to be drawn on potential enablers. Two major categories of enablers were identified by the researchers: resilience and communication. Individual's intrinsic strength, their coping strategies, and receipt of support improved participant's resilience and consequently supported a positive experience. Communication methods and an effective patient-provider relationship facilitated positive experiences for participants. Despite potential barriers to access of care for Indigenous cancer patients, participants in the study demonstrated that it was still possible to focus on the positive aspects of their cancer experiences. Many participants explained how cancer changed their outlook on life, often for the better, with many feeling empowered as they progressed through their cancer diagnosis and treatment processes. PMID- 29342935 TI - Exogenous Melatonin Alleviates Cold Stress by Promoting Antioxidant Defense and Redox Homeostasis in Camellia sinensis L. AB - The unprecedented early spring frost that appears as a cold stress adversely affects growth and productivity in tea (Camellia sinensis L.); therefore, it is indispensable to develop approaches to improve the cold tolerance of tea. Here, we investigated the effect of pretreatment with exogenous melatonin on the net photosynthetic rate, the maximum photochemical efficiency of PSII, chlorophyll content, lipid peroxidation, reactive oxygen species (ROS) accumulation, antioxidant potential, and redox homeostasis in leaves of tea plants following cold stress. Our results revealed that cold treatment induced oxidative stress by increasing ROS accumulation, which in turn affected the photosynthetic process in tea leaves. However, treatment with melatonin mitigated cold-induced reductions in photosynthetic capacity by reducing oxidative stress through enhanced antioxidant potential and redox homeostasis. This study provides strong evidence that melatonin could alleviate cold-induced adverse effects in tea plants. PMID- 29342936 TI - Structure Characterization of Honey-Processed Astragalus Polysaccharides and Its Anti-Inflammatory Activity In Vitro. AB - Honey-processed Astragalus is a dosage form of Radix Astragalus mixed with honey by a traditional Chinese medicine processing method which strengthens the tonic effect. Astragalus polysaccharide (APS), perform its immunomodulatory effects by relying on the tonic effect of Radix Astragalus, therefore, the improved pharmacological activity of honey-processed Astragalus polysaccharide (HAPS) might be due to structural changes during processing. The molecular weights of HAPS and APS were 1,695,788 Da, 2,047,756 Da, respectively, as determined by high performance gel filtration chromatography combined with evaporative light scattering detection (HPGFC-ELSD). The monosaccharide composition was determined by ultra-performance liquid chromatogram quadrupole time-of-flight mass spectrometry (UPLC/ESI-Q-TOF-MS) after pre-column derivatization with 1-phenyl-3 methyl-5-pyrazolone (PMP). The results showed that the essential components were mannose, glucose, xylose, arabinose, glucuronic acid and rhamnose, is molar ratios of 0.06:28.34:0.58:0.24:0.33:0.21 and 0.27:12.83:1.63:0.71:1.04:0.56, respectively. FT-IR and NMR analysis of HAPS results showed the presence of uronic acid and acetyl groups. The anti-inflammatory activities of HAPS were more effective than those of APS according to the NO contents and the expression of IFN-gamma, IL-1beta, IL-22 and TNF-alpha in lipopolysaccharide (LPS)-induced RAW264.7 cells. This findings suggest that the anti-inflammatory and bioactivity improvement might be associated with molecular structure changes, bearing on the potential immunomodulatory action. PMID- 29342937 TI - Does a High Sugar High Fat Dietary Pattern Explain the Unequal Burden in Prevalence of Type 2 Diabetes in a Multi-Ethnic Population in The Netherlands? The HELIUS Study. AB - The risk for type 2 diabetes (T2D) in ethnic minorities in Europe is higher in comparison with their European host populations. The western dietary pattern, characterized by high amounts of sugar and saturated fat (HSHF dietary pattern), has been associated with a higher risk for T2D. Information on this association in minority populations is scarce. Therefore, we aimed to investigate the HSHF dietary pattern and its role in the unequal burden of T2D prevalence in a multi ethnic population in The Netherlands. We included 4694 participants aged 18-70 years of Dutch, South-Asian Surinamese, African Surinamese, Turkish, and Moroccan origin from the HELIUS study. Dutch participants scored the highest on the HSHF dietary pattern, followed by the Turkish, Moroccan, African Surinamese, and South Asian Surinamese participants. Prevalence ratios (PR) for T2D were then calculated using multivariate cox regression analyses, adjusted for sociodemographic, anthropometric, and lifestyle factors. Higher adherence to an HSHF diet was not significantly related to T2D prevalence in the total study sample (PR 1.04 high versus low adherence, 95% CI: 0.80-1.35). In line, adjustment for HSHF diet score did not explain the ethnic differences in T2D. For instance, the PR of the South-Asian Surinamese vs. Dutch changed from 2.76 (95% CI: 2.05-3.72) to 2.90 (95% CI: 2.11-3.98) after adjustment for HSHF. To conclude, a western dietary pattern high in sugar and saturated fat was not associated with T2D, and did not explain the unequal burden in prevalence of T2D across the ethnic groups. PMID- 29342938 TI - Role of Aquaporins in Determining Carbon and Nitrogen Status in Higher Plants. AB - Aquaporins (AQPs) are integral membrane proteins facilitating the transport of water and some small neutral molecules across cell membranes. In past years, much effort has been made to reveal the location of AQPs as well as their function in water transport, photosynthetic processes, and stress responses in higher plants. In the present review, we paid attention to the character of AQPs in determining carbon and nitrogen status. The role of AQPs during photosynthesis is characterized as its function in transporting water and CO2 across the membrane of chloroplast and thylakoid; recalculated results from published studies showed that over-expression of AQPs contributed to 25% and 50% increases in stomatal conductance (gs) and mesophyll conductance (gm), respectively. The nitrogen status in plants is regulated by AQPs through their effect on water flow as well as urea and NH4+ uptake, and the potential role of AQPs in alleviating ammonium toxicity is discussed. At the same time, root and/or shoot AQP expression is quite dependent on both N supply amounts and forms. Future research directions concerning the function of AQPs in regulating plant carbon and nitrogen status as well as C/N balance are also highlighted. PMID- 29342939 TI - Deciphering the Evolution and Development of the Cuticle by Studying Lipid Transfer Proteins in Mosses and Liverworts. AB - When plants conquered land, they developed specialized organs, tissues, and cells in order to survive in this new and harsh terrestrial environment. New cell polymers such as the hydrophobic lipid-based polyesters cutin, suberin, and sporopollenin were also developed for protection against water loss, radiation, and other potentially harmful abiotic factors. Cutin and waxes are the main components of the cuticle, which is the waterproof layer covering the epidermis of many aerial organs of land plants. Although the in vivo functions of the group of lipid binding proteins known as lipid transfer proteins (LTPs) are still rather unclear, there is accumulating evidence suggesting a role for LTPs in the transfer and deposition of monomers required for cuticle assembly. In this review, we first present an overview of the data connecting LTPs with cuticle synthesis. Furthermore, we propose liverworts and mosses as attractive model systems for revealing the specific function and activity of LTPs in the biosynthesis and evolution of the plant cuticle. PMID- 29342942 TI - A Sensor Dynamic Measurement Error Prediction Model Based on NAPSO-SVM. AB - Dynamic measurement error correction is an effective way to improve sensor precision. Dynamic measurement error prediction is an important part of error correction, and support vector machine (SVM) is often used for predicting the dynamic measurement errors of sensors. Traditionally, the SVM parameters were always set manually, which cannot ensure the model's performance. In this paper, a SVM method based on an improved particle swarm optimization (NAPSO) is proposed to predict the dynamic measurement errors of sensors. Natural selection and simulated annealing are added in the PSO to raise the ability to avoid local optima. To verify the performance of NAPSO-SVM, three types of algorithms are selected to optimize the SVM's parameters: the particle swarm optimization algorithm (PSO), the improved PSO optimization algorithm (NAPSO), and the glowworm swarm optimization (GSO). The dynamic measurement error data of two sensors are applied as the test data. The root mean squared error and mean absolute percentage error are employed to evaluate the prediction models' performances. The experimental results show that among the three tested algorithms the NAPSO-SVM method has a better prediction precision and a less prediction errors, and it is an effective method for predicting the dynamic measurement errors of sensors. PMID- 29342941 TI - Development of Optical Fiber Based Measurement System for the Verification of Entrance Dose Map in Pencil Beam Scanning Proton Beam. AB - This study describes the development of a beam monitoring system for the verification of entrance dose map in pencil beam scanning (PBS) proton therapy based on fiber optic radiation sensors (FORS) and the validation of this system through a feasibility study. The beam monitoring system consisted of 128 optical fibers optically coupled to photo-multiplier tubes. The performance of the beam monitoring system based on FORS was verified by comparing 2D dose maps of square shaped fields of various sizes, which were obtained using conventional dosimeters such as MatriXX and EBT3 film, with those measured using FORS. The resulting full width at half maximum and penumbra were compared for PBS proton beams, with a <=2% difference between each value, indicating that measurements using the conventional dosimetric tool corresponded to measurements based on FORS. For irregularly-shaped fields, a comparison based on the gamma index between 2D dose maps obtained using MatriXX and EBT3 film and the 2D dose map measured by the FORS showed passing rates of 96.9 +/- 1.3% and 96.2 +/- 1.9%, respectively, confirming that FORS-based measurements for PBS proton therapy agreed well with those measured using the conventional dosimetric tools. These results demonstrate that the developed beam monitoring system based on FORS is good candidate for monitoring the entrance dose map in PBS proton therapy. PMID- 29342940 TI - Deoxyschizandrin, Isolated from Schisandra Berries, Induces Cell Cycle Arrest in Ovarian Cancer Cells and Inhibits the Protumoural Activation of Tumour-Associated Macrophages. AB - Deoxyschizandrin, a major lignan of Schisandra berries, has been demonstrated to have various biological activities such as antioxidant, hepatoprotective, and antidiabetic effects. However, the anti-cancer effects of deoxyschizandrin are poorly characterized. In the present study, we investigated the anti-cancer effect of deoxyschizandrin on human ovarian cancer cell lines and tumour associated macrophages (TAMs). Deoxyschizandrin induced G0/G1 phase cell cycle arrest and inhibited cyclin E expression in human ovarian cancer cells. Overexpression of cyclin E significantly reversed the deoxyschizandrin-induced cell growth inhibition. Interestingly, increased production of reactive oxygen species and decreased activation of Akt were observed in A2780 cells treated with deoxyschizandrin, and the antioxidant compromised the deoxyschizandrin-induced cell growth inhibition and Akt inactivation. Moreover, deoxyschizandrin-induced cell growth inhibition was markedly suppressed by Akt overexpression. In addition, deoxyschizandrin was found to inhibit the expression of the M2 phenotype markers CD163 and CD209 in TAMs, macrophages stimulated by the ovarian cancer cells. Moreover, expression and production of the tumour-promoting factors MMP-9, RANTES, and VEGF, which are highly enhanced in TAMs, was significantly suppressed by deoxyschizandrin treatment. Taken together, these data suggest that deoxyschizandrin exerts anti-cancer effects by inducing G0/G1 cell cycle arrest in ovarian cancer cells and reducing the protumoural phenotype of TAMs. PMID- 29342943 TI - The Peptide PnPP-19, a Spider Toxin Derivative, Activates MU-Opioid Receptors and Modulates Calcium Channels. AB - The synthetic peptide PnPP-19 comprehends 19 amino acid residues and it represents part of the primary structure of the toxin delta-CNTX-Pn1c (PnTx2-6), isolated from the venom of the spider Phoneutria nigriventer. Behavioural tests suggest that PnPP-19 induces antinociception by activation of CB1, MU and delta opioid receptors. Since the peripheral and central antinociception induced by PnPP-19 involves opioid activation, the aim of this work was to identify whether this synthetic peptide could directly activate opioid receptors and investigate the subtype selectivity for MU-, delta- and/or kappa-opioid receptors. Furthermore, we also studied the modulation of calcium influx driven by PnPP-19 in dorsal root ganglion neurons, and analyzed whether this modulation was opioid mediated. PnPP-19 selectively activates MU-opioid receptors inducing indirectly inhibition of calcium channels and hereby impairing calcium influx in dorsal root ganglion (DRG) neurons. Interestingly, notwithstanding the activation of opioid receptors, PnPP-19 does not induce beta-arrestin2 recruitment. PnPP-19 is the first spider toxin derivative that, among opioid receptors, selectively activates MU-opioid receptors. The lack of beta-arrestin2 recruitment highlights its potential for the design of new improved opioid agonists. PMID- 29342944 TI - A Novel Adaptive Modulation Based on Nondata-Aided Error Vector Magnitude in Non Line-Of-Sight Condition of Wireless Sensor Network. AB - The high demand for multimedia applications in environmental monitoring, invasion detection, and disaster aid has led to the rise of wireless sensor network (WSN). With the increase of reliability and diversity of information streams, the higher requirements on throughput and quality of service (QoS) have been put forward in data transmission between two sensor nodes. However, lower spectral efficiency becomes a bottleneck in non-line-of-sight (NLOS) transmission of WSN. This paper proposes a novel nondata-aided error vector magnitude based adaptive modulation (NDA-EVM-AM) to solve the problem. NDA-EVM is considered as a new metric to evaluate the quality of NLOS link for adaptive modulation in WSN. By modeling the NLOS scenario as the eta - MU fading channel, a closed-form expression for the NDA-EVM of multilevel quadrature amplitude modulation (MQAM) signals over the eta - MU fading channel is derived, and the relationship between SER and NDA-EVM is also formulated. Based on these results, NDA-EVM state machine is designed for adaptation strategy. The algorithmic complexity of NDA-EVM-AM is analyzed and the outage capacity of NDA-EVM-AM in an NLOS scenario is also given. The performances of NDA-EVM-AM are compared by simulation, and the results show that NDA-EVM-AM is an effective technique to be used in the NLOS scenarios of WSN. This technique can accurately reflect the channel variations and efficiently adjust modulation order to better match the channel conditions, hence, obtaining better performance in average spectral efficiency. PMID- 29342945 TI - Hyperspectral Features of Oil-Polluted Sea Ice and the Response to the Contamination Area Fraction. AB - Researchers have studied oil spills in open waters using remote sensors, but few have focused on extracting reflectance features of oil pollution on sea ice. An experiment was conducted on natural sea ice in Bohai Bay, China, to obtain the spectral reflectance of oil-contaminated sea ice. The spectral absorption index (SAI), spectral peak height (SPH), and wavelet detail coefficient (DWT d5) were calculated using stepwise multiple linear regression. The reflectances of some false targets were measured and analysed. The simulated false targets were sediment, iron ore fines, coal dust, and the melt pool. The measured reflectances were resampled using five common sensors (GF-2, Landsat8-OLI, Sentinel3-OLCI, MODIS, and AVIRIS). Some significant spectral features could discriminate between oil-polluted and clean sea ice. The indices correlated well with the oil area fractions. All of the adjusted R2 values exceeded 0.9. The SPH model1, based on spectral features at 507-670 and 1627-1746 nm, displayed the best fitting. The resampled data indicated that these multi-spectral and hyper-spectral sensors could be used to detect crude oil on the sea ice if the effect of noise and spatial resolution are neglected. The spectral features and their identified changes may provide reference on sensor design and band selection. PMID- 29342946 TI - Effects of Alloying Elements on the Formation of Core-Shell-Structured Reinforcing Particles during Heating of Al-Ti Powder Compacts. AB - To prepare core-shell-structured Ti@compound particle (Ti@compoundp) reinforced Al matrix composite via powder thixoforming, the effects of alloying elements, such as Si, Cu, Mg, and Zn, on the reaction between Ti powders and Al melt, and the microstructure of the resulting reinforcements were investigated during heating of powder compacts at 993 K (720 degrees C). Simultaneously, the situations of the reinforcing particles in the corresponding semisolid compacts were also studied. Both thermodynamic analysis and experiment results all indicate that Si participated in the reaction and promoted the formation of Al-Ti Si ternary compounds, while Cu, Mg, and Zn did not take part in the reaction and facilitated Al3Ti phase to form to different degrees. The first-formed Al-Ti-Si ternary compound was tau1 phase, and then it gradually transformed into (Al,Si)3Ti phase. The proportion and existing time of tau1 phase all increased as the Si content increased. In contrast, Mg had the largest, Cu had the least, and Si and Zn had an equivalent middle effect on accelerating the reaction. The thicker the reaction shell was, the larger the stress generated in the shell was, and thus the looser the shell microstructure was. The stress generated in (Al,Si)3Ti phase was larger than that in tau1 phase, but smaller than that in Al3Ti phase. So, the shells in the Al-Ti-Si system were more compact than those in the other systems, and Si element was beneficial to obtain thick and compact compound shells. Most of the above results were consistent to those in the semisolid state ones except the product phase constituents in the Al-Ti-Mg system and the reaction rate in the Al-Ti-Zn system. More importantly, the desirable core-shell structured Ti@compoundp was only achieved in the semisolid Al-Ti-Si system. PMID- 29342947 TI - Understanding Tail-Biting in Pigs through Social Network Analysis. AB - The objective of this study was to investigate the association between social structure and incidence of tail-biting in pigs. Pigs (n = 144, initial weight = 7.2 +/- 1.57 kg, 4 weeks of age) were grouped based on their litter origin: littermates, non-littermates, and half-group of littermates. Six pens (8 pigs/pen) of each litter origin were studied for 6 weeks. Incidence of tail injury and growth performance were monitored. Behavior of pigs was video recorded for 6 h at 6 and 8 weeks of age. Video recordings were scanned at 10 min intervals to register pigs that were lying together (1) or not (0) in binary matrices. Half weight association index was used for social network construction. Social network analysis was performed using the UCINET software. Littermates had lower network density (0.119 vs. 0.174; p < 0.05), more absent social ties (20 vs. 12; p < 0.05), and fewer weak social ties (6 vs. 14, p < 0.05) than non littermates, indicating that littermates might be less socially connected. Fifteen percent of littermates were identified as victimized pigs by tail-biting, and no victimized pigs were observed in other treatment groups. These results suggest that littermates might be less socially connected among themselves which may predispose them to development of tail-biting. PMID- 29342948 TI - Micro-Structures and High-Temperature Friction-Wear Performances of Laser Cladded Cr-Ni Coatings. AB - Cr-Ni coatings with the mass ratios of 17% Cr-83% Ni, 20% Cr-80% Ni and 24% Cr 76% Ni were fabricated on H13 hot work mould steel using a laser cladding (LC). The surface-interface morphologies, chemical elements, surface roughness and phase composition of the obtained Cr-Ni coatings were analysed using a scanning electron microscope (SEM), energy disperse spectroscopy (EDS), atomic force microscope (AFM) and X-ray diffractometer (XRD), respectively. The friction-wear properties and wear rates of Cr-Ni coatings with the different mass ratios of Cr and Ni at 600 degrees C were investigated, and the worn morphologies and wear mechanism of Cr-Ni coatings were analysed. The results show that the phases of Cr Ni coatings with mass ratios of 17% Cr-83% Ni, 20% Cr-80% Ni and 24% Cr-76% Ni are composed of Cr + Ni single-phases and their compounds at the different stoichiometry, the porosities on the Cr-Ni coatings increase with the Cr content increasing. The average coefficient of friction (COF) of 17% Cr-83% Ni, 20% Cr 80% Ni and 24% Cr-76% coatings are 1.10, 0.33 and 0.87, respectively, in which the average COF of 20% Cr-80% Ni coating is the lowest, exhibiting the better anti-friction performance. The wear rate of 17% Cr-83% Ni, 20% Cr-80% Ni and 24% Cr-76% Ni coatings is 4.533 * 10-6, 5.433 * 10-6, and 1.761 * 10-6 N-1.s-1, respectively, showing the wear resistance of Cr-Ni coatings at a high temperature increases with the Cr content, in which the wear rate is 24% Cr-76% Ni coating with the better reducing wear. The wear mechanism of 17% Cr-83% Ni and 20% Cr-80% Ni and 24% Cr-76% coatings at 600 degrees C is primarily adhesive wear, and that of 24% Cr-76% coating is also accompanied by oxidative wear. PMID- 29342951 TI - Microstructure and Tensile Properties of ECAPed Mg-9Al-1Si-1SiC Composites: The Influence of Initial Microstructures. AB - Mg-9Al-1Si-1SiC composites with various initial microstructures prior to equal channel angular pressing (ECAP) were obtained by different pre-treatments (without and with homogenization treatment), and the resultant grain size, second phase and tensile properties of ECAPed composites were reported. The ECAPed composite with homogenization treatment (HT) exhibited finer grain size, higher fraction of dynamically recrystallized (DRXed) grains, weaker texture intensity, as well as the presence of dynamic precipitated Mg17Al12 phase compared to that without HT. Besides, the morphology of pre-existing Mg2Si changed from massive like to needle-like in the ECAPed composite with HT. Room-temperature tensile test results showed that ultimate tensile strength (UTS), yield strength (YS), and elongation (El) of ECAPed composites with HT were 16.1%, 23%, and 27.3% larger than that without HT, respectively. PMID- 29342950 TI - Recent Advances of Rare-Earth Ion Doped Luminescent Nanomaterials in Perovskite Solar Cells. AB - Organic-inorganic lead halide based perovskite solar cells have received broad interest due to their merits of low fabrication cost, a low temperature solution process, and high energy conversion efficiencies. Rare-earth (RE) ion doped nanomaterials can be used in perovskite solar cells to expand the range of absorption spectra and improve the stability due to its upconversion and downconversion effect. This article reviews recent progress in using RE-ion-doped nanomaterials in mesoporous electrodes, perovskite active layers, and as an external function layer of perovskite solar cells. Finally, we discuss the challenges facing the effective use of RE-ion-doped nanomaterials in perovskite solar cells and present some prospects for future research. PMID- 29342949 TI - Characterization of a Novel Alginate Lyase from Marine Bacterium Vibrio furnissii H1. AB - Alginate lyases show great potential for industrial and medicinal applications, especially as an attractive biocatalyst for the production of oligosaccharides with special bioactivities. A novel alginate lyase, AlyH1, from the marine bacterium Vibrio furnissii H1, which has been newly isolated from rotten seaweed, was purified and characterized. The purified enzyme showed the specific activity of 2.40 U/mg. Its molecular mass was 35.8 kDa. The optimal temperature and pH were 40 degrees C and pH 7.5, respectively. AlyH1 maintained stability at neutral pH (7.0-8.0) and temperatures below 30 degrees C. Metal ions Na+, Mg2+, and K+ increased the activity of the enzyme. With sodium alginate as the substrate, the Km and Vmax values of AlyH1 were 2.28 mg/mL and 2.81 U/mg, respectively. AlyH1 exhibited activities towards both polyguluronate and polymannuronate, and preferentially degraded polyguluronate. Products prepared from sodium alginate by AlyH1 were displayed to be di-, tri-, and tetra-alginate oligosaccharides. A partial amino acid sequence (190 aa) of AlyH1 analysis suggested that AlyH1 was an alginate lyase of polysaccharide lyase family 7. The sequence showed less than 77% identity to the reported alginate lyases. These data demonstrated that AlyH1 could be as a novel and potential candidate in application of alginate oligosaccharides production with low polymerization degrees. PMID- 29342952 TI - A Long-Term Follow-Up of the Efficacy of Nature-Based Therapy for Adults Suffering from Stress-Related Illnesses on Levels of Healthcare Consumption and Sick-Leave Absence: A Randomized Controlled Trial. AB - Stress-related illnesses are a growing health problem in the Western world; which also has economic significance for society. As a consequence; there is a growing demand for effective treatments. The study investigates the long-term efficacy of the Nacadia(r) nature-based therapy (NNBT) by comparing it to the efficacy of a validated cognitive behavioral therapy, called STreSS. The study is designed as a randomized controlled trial in which 84 participants are randomly allocated between the treatments. Long-term efficacy is investigated through data extracts from the national database of Statistics Denmark on the sick leave and the health care consumption. The results show that both the NNBT and the STreSS lead to a significant decrease in number of contacts with a general practitioner in the period from twelve months prior to treatment to twelve months after treatment; and, a significant decrease in long-term sick leave from the month prior to treatment to twelve months after treatment. The positive long-term effects provide validation for the NNBT as an efficient treatment of stress-related illnesses. PMID- 29342953 TI - Review of Recent Metamaterial Microfluidic Sensors. AB - Metamaterial elements/arrays exhibit a sensitive response to fluids yet with a small footprint, therefore, they have been an attractive choice to realize various sensing devices when integrated with microfluidic technology. Micro channels made from inexpensive biocompatible materials avoid any contamination from environment and require only microliter-nanoliter sample for sensing. Simple design, easy fabrication process, light weight prototype, and instant measurements are advantages as compared to conventional (optical, electrochemical and biological) sensing systems. Inkjet-printed flexible sensors find their utilization in rapidly growing wearable electronics and health-monitoring flexible devices. Adequate sensitivity and repeatability of these low profile microfluidic sensors make them a potential candidate for point-of-care testing which novice patients can use reliably. Aside from degraded sensitivity and lack of selectivity in all practical microwave chemical sensors, they require an instrument, such as vector network analyzer for measurements and not readily available as a self-sustained portable sensor. This review article presents state of-the-art metamaterial inspired microfluidic bio/chemical sensors (passive devices ranging from gigahertz to terahertz range) with an emphasis on metamaterial sensing circuit and microfluidic detection. We also highlight challenges and strategies to cope these issues which set future directions. PMID- 29342954 TI - A Built-In CpG Adjuvant in RSV F Protein DNA Vaccine Drives a Th1 Polarized and Enhanced Protective Immune Response. AB - Human respiratory syncytial virus (RSV) is the most significant cause of acute lower respiratory infection in children. However, there is no licensed vaccine available. Here, we investigated the effect of five or 20 copies of C-Class of CpG ODN (CpG-C) motif incorporated into a plasmid DNA vaccine encoding RSV fusion (F) glycoprotein on the vaccine-induced immune response. The addition of CpG-C motif enhanced serum binding and virus-neutralizing antibody responses in BALB/c mice immunized with the DNA vaccines. Moreover, mice vaccinated with CpG-modified vaccines, especially with the higher 20 copies, resulted in an enhanced shift toward a Th1-biased antibody and T-cell response, a decrease in pulmonary pathology and virus replication, and a decrease in weight loss after RSV challenge. This study suggests that CpG-C motif, cloned into the backbone of DNA vaccine encoding RSV F glycoprotein, functions as a built-in adjuvant capable of improving the efficacy of DNA vaccine against RSV infection. PMID- 29342956 TI - Development of a Scale-up Tool for Pervaporation Processes. AB - In this study, an engineering tool for the design and optimization of pervaporation processes is developed based on physico-chemical modelling coupled with laboratory/mini-plant experiments. The model incorporates the solution diffusion-mechanism, polarization effects (concentration and temperature), axial dispersion, pressure drop and the temperature drop in the feed channel due to vaporization of the permeating components. The permeance, being the key model parameter, was determined via dehydration experiments on a mini-plant scale for the binary mixtures ethanol/water and ethyl acetate/water. A second set of experimental data was utilized for the validation of the model for two chemical systems. The industrially relevant ternary mixture, ethanol/ethyl acetate/water, was investigated close to its azeotropic point and compared to a simulation conducted with the determined binary permeance data. Experimental and simulation data proved to agree very well for the investigated process conditions. In order to test the scalability of the developed engineering tool, large-scale data from an industrial pervaporation plant used for the dehydration of ethanol was compared to a process simulation conducted with the validated physico-chemical model. Since the membranes employed in both mini-plant and industrial scale were of the same type, the permeance data could be transferred. The comparison of the measured and simulated data proved the scalability of the derived model. PMID- 29342955 TI - Pharmacokinetics of Schizandrin and Its Pharmaceutical Products Assessed Using a Validated LC-MS/MS Method. AB - Schisandra chinensis has been used as an important component in various prescriptions in traditional Chinese medicine and, more recently, in Western based medicine for its anti-hepatotoxic effect. The aim of this study was to develop a selective, rapid, and sensitive ultra-performance liquid chromatography tandem mass spectrometry method for pharmacokinetic studies of schizandrin in rats. Liquid-liquid extraction was used for plasma sample preparation. A UHPLC reverse-phase C18e column (100 mm * 2.1 mm, 2 MUm) coupled with a mobile phase of methanol-0.1% formic acid (85:15, v/v) was used for sample separation. A triple quadrupole tandem mass spectrometer was used to detect the analytes in the selected reaction monitoring mode. The linear range of schizandrin in rat plasma was 5.0-1000 ng/mL (r2 > 0.999), with a lower limit of quantification of 5 ng/mL. The method was validated with regard to accuracy, intra-day and inter-day precision, linearity, stability, recovery, and matrix effects in rat plasma, which were acceptable according to the biological method validation guidelines developed by the FDA. This method was successfully applied to a pharmacokinetic study after oral administration of 3 g/kg and 10 g/kg of Schisandra chinensis products, which yielded a maximum concentration of schizandrin of 0.08 +/- 0.07 and 0.15 +/- 0.09 MUg/mL, respectively. A parallel study design was used to investigate the oral bioavailability of single compound of schizandrin and the herbal extract, the single compound of pure schizandrin (10 mg/kg, i.v.), pure schizandrin (10 mg/kg, p.o.), and the herbal extract of Schisandra chinensis (3 g/kg and 10 g/kg, p.o.) were given individually. The dose of Schisandra chinensis (3 g/kg) equivalent to schizandrin (5.2 mg/kg); the dose of Schisandra chinensis (10 g/kg) equivalent to schizandrin (17.3 mg/kg). The result demonstrated that the oral bioavailability of schizandrin was approximately 15.56 +/- 10.47% in rats, however the oral bioavailability of herbal extract was higher than single compound. The method was successfully applied to the pharmacokinetic study of pure schizandrin after oral administration of its pharmaceutical industry products in rats. PMID- 29342957 TI - Comparative Transcriptome Analysis Identifies Putative Genes Involved in Steroid Biosynthesis in Euphorbia tirucalli. AB - Phytochemical analysis of different Euphorbia tirucalli tissues revealed a contrasting tissue-specificity for the biosynthesis of euphol and beta sitosterol, which represent the two pharmaceutically active steroids in E. tirucalli. To uncover the molecular mechanism underlying this tissue-specificity for phytochemicals, a comprehensive E. tirucalli transcriptome derived from its root, stem, leaf and latex was constructed, and a total of 91,619 unigenes were generated with 51.08% being successfully annotated against the non-redundant (Nr) protein database. A comparison of the transcriptome from different tissues discovered members of unigenes in the upstream steps of sterol backbone biosynthesis leading to this tissue-specific sterol biosynthesis. Among them, the putative oxidosqualene cyclase (OSC) encoding genes involved in euphol synthesis were notably identified, and their expressions were significantly up-regulated in the latex. In addition, genome-wide differentially expressed genes (DEGs) in the different E. tirucalli tissues were identified. The cluster analysis of those DEGs showed a unique expression pattern in the latex compared with other tissues. The DEGs identified in this study would enrich the insights of sterol biosynthesis and the regulation mechanism of this latex-specificity. PMID- 29342958 TI - An Enhanced Method to Estimate Heart Rate from Seismocardiography via Ensemble Averaging of Body Movements at Six Degrees of Freedom. AB - Continuous cardiac monitoring has been developed to evaluate cardiac activity outside of clinical environments due to the advancement of novel instruments. Seismocardiography (SCG) is one of the vital components that could develop such a monitoring system. Although SCG has been presented with a lower accuracy, this novel cardiac indicator has been steadily proposed over traditional methods such as electrocardiography (ECG). Thus, it is necessary to develop an enhanced method by combining the significant cardiac indicators. In this study, the six-axis signals of accelerometer and gyroscope were measured and integrated by the L2 normalization and multi-dimensional kineticardiography (MKCG) approaches, respectively. The waveforms of accelerometer and gyroscope were standardized and combined via ensemble averaging, and the heart rate was calculated from the dominant frequency. Thirty participants (15 females) were asked to stand or sit in relaxed and aroused conditions. Their SCG was measured during the task. As a result, proposed method showed higher accuracy than traditional SCG methods in all measurement conditions. The three main contributions are as follows: (1) the ensemble averaging enhanced heart rate estimation with the benefits of the six axis signals; (2) the proposed method was compared with the previous SCG method that employs fewer-axis; and (3) the method was tested in various measurement conditions for a more practical application. PMID- 29342960 TI - A Low-Cost Inkjet-Printed Aptamer-Based Electrochemical Biosensor for the Selective Detection of Lysozyme. AB - Recently, inkjet-printing has gained increased popularity in applications such as flexible electronics and disposable sensors, as well as in wearable sensors because of its multifarious advantages. This work presents a novel, low-cost immobilization technique using inkjet-printing for the development of an aptamer based biosensor for the detection of lysozyme, an important biomarker in various disease diagnosis. The strong affinity between the carbon nanotube (CNT) and the single-stranded DNA is exploited to immobilize the aptamers onto the working electrode by printing the ink containing the dispersion of CNT-aptamer complex. The inkjet-printing method enables aptamer density control, as well as high resolution patternability. Our developed sensor shows a detection limit of 90 ng/mL with high target selectivity against other proteins. The sensor also demonstrates a shelf-life for a reasonable period. This technology has potential for applications in developing low-cost point-of-care diagnostic testing kits for home healthcare. PMID- 29342959 TI - Structural Insights in Multifunctional Papillomavirus Oncoproteins. AB - Since their discovery in the mid-eighties, the main papillomavirus oncoproteins E6 and E7 have been recalcitrant to high-resolution structure analysis. However, in the last decade a wealth of three-dimensional information has been gained on both proteins whether free or complexed to host target proteins. Here, we first summarize the diverse activities of these small multifunctional oncoproteins. Next, we review the available structural data and the new insights they provide about the evolution of E6 and E7, their multiple interactions and their functional variability across human papillomavirus (HPV) species. PMID- 29342961 TI - Effects of Salt Stress on Plant Growth, Antioxidant Capacity, Glandular Trichome Density, and Volatile Exudates of Schizonepeta tenuifolia Briq. AB - Salinity is a major abiotic factor affecting plant growth and secondary metabolism. However, no information is available about its effects on Schizonepeta tenuifolia Briq., a traditional Chinese herb. Here, we investigated the changes of plant growth, antioxidant capacity, glandular trichome density, and volatile exudates of S. tenuifolia exposed to salt stress (0, 25, 50, 75, 100 mM NaCl). Results showed that its dry biomass was reduced by salt treatments except 25 mM NaCl. Contents of antioxidants, including phenolics and flavonoids, increased at low (25 mM) or moderate (50 mM) levels, but declined at severe (75 and 100 mM) levels. On leaf surfaces, big peltate and small capitate glandular trichomes (GTs) were found. Salt treatments, especially at moderate and severe concentrations, enhanced the density of total GTs on both leaf sides. The most abundant compound in GT volatile exudates was pulegone. Under salinity, relative contents of this component and other monoterpenes decreased significantly; biosynthesis and accumulation of esters were enhanced, particularly sulfurous acid,2-ethylhexyl hexyl ester, which became the second major compound as salinity increased. In conclusion, salt stress significantly influenced the growth and secondary metabolism of S. tenuifolia, enabling us to study the changes of its pharmacological activities. PMID- 29342963 TI - Sum of the Magnitude for Hard Decision Decoding Algorithm Based on Loop Update Detection. AB - In order to improve the performance of non-binary low-density parity check codes (LDPC) hard decision decoding algorithm and to reduce the complexity of decoding, a sum of the magnitude for hard decision decoding algorithm based on loop update detection is proposed. This will also ensure the reliability, stability and high transmission rate of 5G mobile communication. The algorithm is based on the hard decision decoding algorithm (HDA) and uses the soft information from the channel to calculate the reliability, while the sum of the variable nodes' (VN) magnitude is excluded for computing the reliability of the parity checks. At the same time, the reliability information of the variable node is considered and the loop update detection algorithm is introduced. The bit corresponding to the error code word is flipped multiple times, before this is searched in the order of most likely error probability to finally find the correct code word. Simulation results show that the performance of one of the improved schemes is better than the weighted symbol flipping (WSF) algorithm under different hexadecimal numbers by about 2.2 dB and 2.35 dB at the bit error rate (BER) of 10-5 over an additive white Gaussian noise (AWGN) channel, respectively. Furthermore, the average number of decoding iterations is significantly reduced. PMID- 29342962 TI - Functional Analyses of RUNX3 and CaMKIINalpha in Ovarian Cancer Cell Lines Reveal Tumor-Suppressive Functions for CaMKIINalpha and Dichotomous Roles for RUNX3 Transcript Variants. AB - (1) Background: Epithelial ovarian cancer (EOC) is the most lethal cancer of the female reproductive system. In an earlier study, we identified multiple genes as hypermethylated in tumors of patients with poor prognosis. The most promising combination of markers to predict a patient's outcome was CaMKIINalpha and RUNX3. Aim of this study was to functionally validate the importance of both genes. (2) Methods: IC50 measurements, cell cycle distribution-, proliferation, and migration experiments were conducted after transgene overexpression in two EOC cell lines. (3) Results: We showed that CaMKIINalpha has tumor suppressive functions in vitro and reduces proliferation, migration, and colony formation. However, it had no effect on the reversion of the resistance to cisplatin. RUNX3 exhibited dualistic functions related to cisplatin sensitivity and migration capacity, depending on the respective transcript variant (TV). A2780 cells expressing RUNX3 TV2-the promoter of which harbors a CpG (5'-C-phosphate-G-3') island and is potentially inactivated by hypermethylation-exhibited increased cisplatin sensitivity and reduced migration properties. However, RUNX3 TV1, not affected by CpG island methylation could be characterized as mediating resistance and enhancing migration in A2780. The higher resistance of RUNX3 TV1 transfected cells correlates with a reduction of cell proliferation. Moreover, RUNX3 TV1 expressing cells exhibit a reduced cell cycle arrest at the gap-2 or mitosis phase (G2/M) under cisplatin treatment comparable to resistant A2780 subcultures. (4) Conclusion: It appears that CaMKIINalpha and RUNX3 TV2 can reduce the malignant potential of EOC cells. PMID- 29342964 TI - Data-Driven Modeling and Rendering of Force Responses from Elastic Tool Deformation. AB - This article presents a new data-driven model design for rendering force responses from elastic tool deformation. The new design incorporates a six dimensional input describing the initial position of the contact, as well as the state of the tool deformation. The input-output relationship of the model was represented by a radial basis functions network, which was optimized based on training data collected from real tool-surface contact. Since the input space of the model is represented in the local coordinate system of a tool, the model is independent of recording and rendering devices and can be easily deployed to an existing simulator. The model also supports complex interactions, such as self and multi-contact collisions. In order to assess the proposed data-driven model, we built a custom data acquisition setup and developed a proof-of-concept rendering simulator. The simulator was evaluated through numerical and psychophysical experiments with four different real tools. The numerical evaluation demonstrated the perceptual soundness of the proposed model, meanwhile the user study revealed the force feedback of the proposed simulator to be realistic. PMID- 29342965 TI - Lipid-Based Nanoparticles as a Potential Delivery Approach in the Treatment of Rheumatoid Arthritis. AB - Rheumatoid arthritis (RA), a chronic and joint-related autoimmune disease, results in immune dysfunction and destruction of joints and cartilages. Small molecules and biological therapies have been applied in a wide variety of inflammatory disorders, but their utility as a therapeutic agent is limited by poor absorption, rapid metabolism, and serious side effects. To improve these limitations, nanoparticles, which are capable of encapsulating and protecting drugs from degradation before they reach the target site in vivo, may serve as drug delivery systems. The present research proposes a platform for different lipid nanoparticle approaches for RA therapy, taking advantage of the newly emerging field of lipid nanoparticles to develop a targeted theranostic system for application in the treatment of RA. This review aims to present the recent major application of lipid nanoparticles that provide a biocompatible and biodegradable delivery system to effectively improve RA targeting over free drugs via the presentation of tissue-specific targeting of ligand-controlled drug release by modulating nanoparticle composition. PMID- 29342966 TI - Fabrication of a Textile-Based Wearable Blood Leakage Sensor Using Screen-Offset Printing. AB - We fabricate a wearable blood leakage sensor on a cotton textile by combining two newly developed techniques. First, we employ a screen-offset printing technique that avoids blurring, short circuiting between adjacent conductive patterns, and electrode fracturing to form an interdigitated electrode structure for the sensor on a textile. Furthermore, we develop a scheme to distinguish blood from other substances by utilizing the specific dielectric dispersion of blood observed in the sub-megahertz frequency range. The sensor can detect blood volumes as low as 15 MUL, which is significantly lower than those of commercially available products (which can detect approximately 1 mL of blood) and comparable to a recently reported value of approximately 10 MUL. In this study, we merge two technologies to develop a more practical skin-friendly sensor that can be applied for safe, stress-free blood leakage monitoring during hemodialysis. PMID- 29342968 TI - A Fast and Robust Extrinsic Calibration for RGB-D Camera Networks. AB - From object tracking to 3D reconstruction, RGB-Depth (RGB-D) camera networks play an increasingly important role in many vision and graphics applications. Practical applications often use sparsely-placed cameras to maximize visibility, while using as few cameras as possible to minimize cost. In general, it is challenging to calibrate sparse camera networks due to the lack of shared scene features across different camera views. In this paper, we propose a novel algorithm that can accurately and rapidly calibrate the geometric relationships across an arbitrary number of RGB-D cameras on a network. Our work has a number of novel features. First, to cope with the wide separation between different cameras, we establish view correspondences by using a spherical calibration object. We show that this approach outperforms other techniques based on planar calibration objects. Second, instead of modeling camera extrinsic calibration using rigid transformation, which is optimal only for pinhole cameras, we systematically test different view transformation functions including rigid transformation, polynomial transformation and manifold regression to determine the most robust mapping that generalizes well to unseen data. Third, we reformulate the celebrated bundle adjustment procedure to minimize the global 3D reprojection error so as to fine-tune the initial estimates. Finally, our scalable client-server architecture is computationally efficient: the calibration of a five-camera system, including data capture, can be done in minutes using only commodity PCs. Our proposed framework is compared with other state-of-the arts systems using both quantitative measurements and visual alignment results of the merged point clouds. PMID- 29342969 TI - Feature Fusion of ICP-AES, UV-Vis and FT-MIR for Origin Traceability of Boletus edulis Mushrooms in Combination with Chemometrics. AB - Origin traceability is an important step to control the nutritional and pharmacological quality of food products. Boletus edulis mushroom is a well-known food resource in the world. Its nutritional and medicinal properties are drastically varied depending on geographical origins. In this study, three sensor systems (inductively coupled plasma atomic emission spectrophotometer (ICP-AES), ultraviolet-visible (UV-Vis) and Fourier transform mid-infrared spectroscopy (FT MIR)) were applied for the origin traceability of 192 mushroom samples (caps and stipes) in combination with chemometrics. The difference between cap and stipe was clearly illustrated based on a single sensor technique, respectively. Feature variables from three instruments were used for origin traceability. Two supervised classification methods, partial least square discriminant analysis (FLS-DA) and grid search support vector machine (GS-SVM), were applied to develop mathematical models. Two steps (internal cross-validation and external prediction for unknown samples) were used to evaluate the performance of a classification model. The result is satisfactory with high accuracies ranging from 90.625% to 100%. These models also have an excellent generalization ability with the optimal parameters. Based on the combination of three sensory systems, our study provides a multi-sensory and comprehensive origin traceability of B. edulis mushrooms. PMID- 29342967 TI - Structural Diversity and Biological Activities of Cyclic Depsipeptides from Fungi. AB - Cyclic depsipeptides (CDPs) are cyclopeptides in which amide groups are replaced by corresponding lactone bonds due to the presence of a hydroxylated carboxylic acid in the peptide structure. These peptides sometimes display additional chemical modifications, including unusual amino acid residues in their structures. This review highlights the occurrence, structures and biological activities of the fungal CDPs reported until October 2017. About 352 fungal CDPs belonging to the groups of cyclic tri-, tetra-, penta-, hexa-, hepta-, octa-, nona-, deca-, and tridecadepsipeptides have been isolated from fungi. These metabolites are mainly reported from the genera Acremonium, Alternaria, Aspergillus, Beauveria, Fusarium, Isaria, Metarhizium, Penicillium, and Rosellina. They are known to exhibit various biological activities such as cytotoxic, phytotoxic, antimicrobial, antiviral, anthelmintic, insecticidal, antimalarial, antitumoral and enzyme-inhibitory activities. Some CDPs (i.e., PF1022A, enniatins and destruxins) have been applied as pharmaceuticals and agrochemicals. PMID- 29342971 TI - Walking Distance Estimation Using Walking Canes with Inertial Sensors. AB - A walking distance estimation algorithm for cane users is proposed using an inertial sensor unit attached to various positions on the cane. A standard inertial navigation algorithm using an indirect Kalman filter was applied to update the velocity and position of the cane during movement. For quadripod canes, a standard zero-velocity measurement-updating method is proposed. For standard canes, a velocity-updating method based on an inverted pendulum model is proposed. The proposed algorithms were verified by three walking experiments with two different types of canes and different positions of the sensor module. PMID- 29342970 TI - The Possible Importance of beta3 Integrins for Leukemogenesis and Chemoresistance in Acute Myeloid Leukemia. AB - Acute myeloid leukemia (AML) is an aggressive bone marrow malignancy where the immature leukemia cells communicate with neighboring cells through constitutive cytokine release and through their cell surface adhesion molecules. The primary AML cells express various integrins. These heterodimeric molecules containing an alpha and a beta chain are cell surface molecules that bind extracellular matrix molecules, cell surface molecules and soluble mediators. The beta3 integrin (ITGB3) chain can form heterodimers only with the two alpha chains alphaIIb and alphaV. These integrins are among the most promiscuous and bind to a large number of ligands, including extracellular matrix molecules, cell surface molecules and soluble mediators. Recent studies suggest that the two beta3 integrins are important for leukemogenesis and chemosensitivity in human AML. Firstly, alphaIIb and beta3 are both important for adhesion of AML cells to vitronectin and fibronectin. Secondly, beta3 is important for the development of murine AML and also for the homing and maintenance of the proliferation for xenografted primary human AML cells, and for maintaining a stem cell transcriptional program. These last effects seem to be mediated through Syk kinase. The beta3 expression seems to be regulated by HomeboxA9 (HoxA9) and HoxA10, and the increased beta3 expression then activates spleen tyrosine kinase (Syk) and thereby contributes to cytokine hypersensitivity and activation of beta2 integrins. Finally, high integrin alphaV/beta3 expression is associated with an adverse prognosis in AML and decreased sensitivity to the kinase inhibitor sorafenib; this integrin can also be essential for osteopontin-induced sorafenib resistance in AML. In the present article, we review the experimental and clinical evidence for a role of beta3 integrins for leukemogenesis and chemosensitivity in AML. PMID- 29342973 TI - Biogenic Weathering: Solubilization of Iron from Minerals by Epilithic Freshwater Algae and Cyanobacteria. AB - A sandstone outcrop exposed to freshwater seepage supports a diverse assemblage of photosynthetic microbes. Dominant taxa are two cyanophytes (Oscillatoria sp., Rivularia sp.) and a unicellular green alga (Palmellococcus sp.). Less abundant taxa include a filamentous green alga, Microspora, and the desmid Cosmarium. Biologic activity is evidenced by measured levels of chlorophyll and lipids. Bioassay methods confirm the ability of these microbes to dissolve and metabolize Fe from ferruginous minerals. Chromatographic analysis reveals citric acid as the likely chelating agent; this low molecular weight organic acid is detectable in interstitial fluid in the sandstone, measured as 0.0756 mg/mL. Bioassays using a model organism, Synechoccus elongates strain UTEX 650, show that Fe availability varies among different ferruginous minerals. In decreasing order of Fe availability: magnetite > limonite > biotite > siderite > hematite. Biotite was selected for detailed study because it is the most abundant iron-bearing mineral in the sandstone. SEM images support the microbiologic evidence, showing weathering of biotite compared to relatively undamaged grains of other silicate minerals. PMID- 29342972 TI - The Effect of Combining Natural Terpenes and Antituberculous Agents against Reference and Clinical Mycobacterium tuberculosis Strains. AB - Background: On account of emergence of multi- and extensively drug-resistant Mycobacterium tuberculosis (Mtb) strains, combinations of drugs with natural compounds were tested to search for antibiotic activity enhancers. In this work we studied terpenes (alpha-pinene, bisabolol, beta-elemene, (R)-limonene, (S) limonene, myrcene, sabinene), which are the main constituents of essential oil obtained from Mutellina purpurea L., a plant with described antitubercular activity, to investigate their interactions with antibiotics against reference Mtb strains and multidrug-resistant clinical isolates. Methods: The serial dilution method was used to evaluate the minimal inhibitory concentration (MIC) of tested compounds, while the fractional inhibitory concentration index (FICI) was calculated for characterization of interactions. Moreover, IC50 values of tested compounds were determined using monkey kidney epithelial cell line (GMK). Results: The combinations of all studied terpenes with ethambutol or rifampicin resulted in a synergistic interaction. Bisabolol and (R)-limonene decreased the MIC for rifampicin at least two-fold for all tested strains, however no synergistic action was observed against virulent strains. The tested terpenes showed slight (bisabolol) or no cytotoxic effect against normal eukaryotic cells in vitro. Conclusions: The obtained enhanced activity (FICI < 0.5) of ethambutol and rifampicin against H37Ra strain under the influence of the studied terpenes may be correlated to the capability of essential oil constituents to modify bacterial resistance mechanisms in general. The observed differences in avirulent and virulent bacteria susceptibility to terpenes tested separately and in combinations with antibiotics can be correlated with the differences in the cell wall structure between H37Ra mutant and all virulent strains. PMID- 29342974 TI - Trypsin Binding with Copper Ions Scavenges Superoxide: Molecular Dynamics-Based Mechanism Investigation. AB - Trypsin is a serine protease, which has been proved to be a novel superoxide scavenger. The burst of superoxide induced by polychlorinated biphenyls can be impeded by trypsin in both wild type and sod knockout mutants of Escherichia coli. The experimental results demonstrated that the activities of superoxide scavenging of trypsin were significantly accelerated by Cu ions. Also, with the addition of Cu ions, a new beta-sheet (beta7) transited from a random coil in the Cu(II)-trypsin (TP) system, which was favorable for the formation of more contacts with other sheets of trypsin. Residue-residue network analysis and the porcupine plots proved that the Cu ion in trypsin strengthened some native interactions among residues, which ultimately resulted in much greater stability of the Cu(II)-TP system. Moreover, compact and stable trypsin structures with Cu ions might be responsible for significantly provoking the activity of superoxide scavenging. PMID- 29342975 TI - Gallic Acid Alleviates Hypertriglyceridemia and Fat Accumulation via Modulating Glycolysis and Lipolysis Pathways in Perirenal Adipose Tissues of Rats Fed a High Fructose Diet. AB - This study investigated the ameliorative effect of gallic acid (GA) on hypertriglyceridemia and fat accumulation in perirenal adipose tissues of high fructose diet (HFD)-induced diabetic rats. The previous results showed that orally administered GA (30 mg/kg body weight) for four weeks significantly reduced the levels of plasma glucose and triglyceride (TG) in HFD rats. GA also markedly decreased the perirenal adipose tissues weight of HFD rats in present study (p < 0.05). Western blot assay indicated that GA restored expression of insulin signaling-related proteins, such as insulin receptor (IR), protein kinase C-zeta (PKC-zeta), and glucose transporter-4 (GLUT4) in the perirenal adipose tissues of HFD rats. Moreover, GA enhanced expression of glycolysis-related proteins, such as phosphofructokinase (PFK) and pyruvate kinase (PK), and increased the expression of lipolysis-related proteins, such as adipose triglyceride lipase (ATGL), which is involved in lipolysis in the perirenal adipose tissues of HFD rats. This study revealed that GA may alleviate hypertriglyceridemia and fat accumulation through enhancing glycolysis and lipolysis pathways in perirenal adipose tissues of HFD rats. These findings also suggest the potential of GA in preventing the progression of diabetes mellitus (DM) complications. PMID- 29342976 TI - A Child's Concept of Pain: An International Survey of Pediatric Pain Experts. AB - A child's 'concept of pain' refers to how they understand what pain actually is, what function pain serves, and what biological processes are thought to underpin it. We aimed to determine pediatric pain experts' opinions of: (1) the importance and usefulness of assessing a child's concept of pain in clinical and/or research settings; (2) the usefulness of the content of items within currently published adult-targeted resources for assessing a child's concept of pain; and (3) important domains of a child's concept of pain to assess. Forty-nine pediatric pain experts (response rate = 75.4%) completed an online survey. Descriptive statistics and frequency of responses were analyzed. Experts from all included disciplines reported that assessing a child's concept of pain is important and useful both clinically and in a research setting (>80% reported very or extremely useful for each item). Experts considered that the content of 13 items from currently published adult-targeted resources was useful, but the wording was too complex for children aged 8-12 years. Experts considered that all seven of the proposed domains of a child's concept of pain was important to assess. The findings can be used to inform the development of an assessment tool for a child's concept of pain. PMID- 29342977 TI - Correction: Dierking, Ingo and Al-Zangana, Shakhawan. Lyotropic Liquid Crystal Phases from Anisotropic Nanomaterials. Nanomaterials 2017, 7, 305. AB - Due to an oversight during production, the authors wish to make the following correction to reference [65] of this paper [...]. PMID- 29342979 TI - Catalysts on Formation of Carbon-Encapsulated Iron Nanoparticles from Kraft Lignin. AB - Effects of physical and chemical states of iron-based catalysts on the formation of carbon-encapsulated iron nanoparticles (CEINs) synthesized thermally from kraft lignin were investigated. Experimental results indicated that if solution based iron nitrate (FeN) was used as an iron source for the catalyst, CEINs observed were alpha-Fe and gamma-Fe-based cores encapsulated by few layers graphitic-carbon (mostly 1-5 layers) and the majority of these CEINs were embedded in amorphous carbon matrix. The formation of graphitic-carbon shells is believed based on the dissolution and precipitation mechanism of amorphous carbon acting as the carbon source. If solid-based iron nanoparticles (FePs) were used as the catalyst, CEINs observed were alpha-Fe, gamma-Fe, and Fe3C-based cores encapsulated with tangled graphitic-carbon nanoribbons and carbon tubules and the majority of these CEINs were found along the edge of amorphous carbon matrix. The growth of tangled graphitic-carbon nanoribbons and carbon tubules is based on a chemical vapor decomposition process, i.e., the carbonaceous gases from kraft lignin decomposition served as the carbon source. PMID- 29342978 TI - Host-Guest Interaction of Cucurbit[8]uril with N-(3-Aminopropyl)cyclohexylamine: Cyclohexyl Encapsulation Triggered Ternary Complex. AB - The host-guest interaction of a series of cyclohexyl-appended guests with cucurbit[8]uril (Q[8]) was studied by 1H NMR spectroscopy, isothermal titration calorimetry (ITC), and X-ray crystallography. The X-ray structure revealed that two cycloalkane moieties can be simultaneously encapsulated in the hydrophobic cavity of the Q[8] host to form a ternary complex for the first time. PMID- 29342980 TI - Dietary Intake of Flavonoids and Ventilatory Function in European Adults: A GA2LEN Study. AB - BACKGROUND: Flavonoids exert anti-inflammatory properties and modulate oxidative stress in vitro, suggesting a protective effect on lung function, but epidemiological studies examining this association are scarce. METHODS: A stratified random sample was drawn from the GA2LEN screening survey, in which 55,000 adults aged 15 to 75 answered a questionnaire on respiratory symptoms. Post-bronchodilator spirometry was obtained from 2850 subjects. Forced vital capacity (FVC), the ratio between the forced exhaled volume in 1 second (FEV1) and FVC (FEV1/FVC), FVC below lower limit of normal (FVC < LLN), and FEV1/FVC < LLN were calculated. Intake of the six main subclasses of flavonoids was estimated using the GA2LEN Food Frequency Questionnaire. Adjusted associations between outcomes and each subclass of flavonoids were examined with multivariate regressions. Simes' procedure was used to test for multiple comparisons. RESULTS: A total of 2599 subjects had valid lung function and dietary data. A lower prevalence of FVC < LLN (airway restriction) was observed in those with higher total flavonoid (adjusted odds ratio (aOR), higher vs. lowest quintile intake 0.58; 95% Confidence Interval (CI) 0.36, 0.94), and pro-anthocyanidin intakes (aOR 0.47; 95% CI 0.27, 0.81). A higher FEV1/FVC was associated with higher intakes of total flavonoids and pro-anthocyanidins (adjusted correlation coefficient (a beta-coeff 0.33; 0.10, 0.57 and a beta-coeff 0.44; 95% CI 0.19, 0.69, respectively). After Simes' procedure, the statistical significance of each of these associations was attenuated but remained below 0.05, with the exception of total flavonoids and airway restriction. CONCLUSIONS: This population-based study in European adults provides cross-sectional evidence of a positive association of total flavonoid intake and pro-anthocyanidins and ventilatory function, and a negative association with spirometric restriction in European adults. PMID- 29342981 TI - Current Evidence on Vitamin D Deficiency and Metabolic Syndrome in Obese Children: What Does the Evidence from Saudi Arabia Tell Us? AB - Obesity and vitamin D deficiency represent major health problems among Saudi children, and have been linked to chronic diseases. Obese children are at risk of developing vitamin D deficiency, which appears to have negative influences on energy homeostasis, impeded bone mineralisation, insulin resistance and inflammation. Evidence supporting the association between vitamin D deficiency of obese children and metabolic syndrome has not specifically been studied in early childhood. The mechanisms through which vitamin D deficiency is associated with metabolic syndrome in obese children needs further elucidation. This commentary aims to (i) summarise current knowledge of the association between vitamin D deficiency and metabolic syndrome in obese children; and (ii) discuss current evidence for the association among Saudi Arabian children. PMID- 29342982 TI - Detection of ZrO2 Nanoparticles in Lung Tissue Sections by Time-of-Flight Secondary Ion Mass Spectrometry and Ion Beam Microscopy. AB - The increasing use of nanoparticles (NP) in commercial products requires elaborated techniques to detect NP in the tissue of exposed organisms. However, due to the low amount of material, the detection and exact localization of NP within tissue sections is demanding. In this respect, Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and Ion Beam Microscopy (IBM) are promising techniques, because they both offer sub-micron lateral resolutions along with high sensitivities. Here, we compare the performance of the non-material consumptive IBM and material-consumptive ToF-SIMS for the detection of ZrO2 NP (primary size 9-10 nm) in rat lung tissue. Unfixed or methanol-fixed air-dried cryo-sections were subjected to IBM using proton beam scanning or to three dimensional ToF-SIMS (3D ToF-SIMS) using either oxygen or argon gas cluster ion beams for complete sample sputtering. Some sample sites were analyzed first by IBM and subsequently by 3D ToF-SIMS, to compare results from exactly the same site. Both techniques revealed that ZrO2 NP particles occurred mostly agglomerated in phagocytic cells with only small quantities being associated to the lung epithelium, with Zr, S, and P colocalized within the same biological structures. However, while IBM provided quantitative information on element distribution, 3D ToF-SIMS delivered a higher lateral resolution and a lower limit of detection under these conditions. We, therefore, conclude that 3D ToF-SIMS, although not yet a quantitative technique, is a highly valuable tool for the detection of NP in biological tissue. PMID- 29342983 TI - Assessing the Perceptions and Practice of Self-Medication among Bangladeshi Undergraduate Pharmacy Students. AB - Objectives: To evaluate the perceptions and extent of practicing self-medication among undergraduate pharmacy students. Methods: This cross-sectional, questionnaire-based study was conducted over a six month period (January to June 2016) among undergraduate pharmacy students in five reputable public universities of Bangladesh. It involved face-to-face interviews regarding self-medication of 250 respondents selected by simple random sampling. Results: Self-medication was reported by 88.0% of students. Antipyretics (58.40%) were mostly preferred for the treatment of fever and headaches. The major cause for self-medication was minor illness (59.60%, p = 0.73) while previous prescriptions were the main source of knowledge as well as the major factor (52.80%, p = 0.94) dominating the self-medication practice. The results also demonstrated 88.80% of students had previous knowledge on self-medication and 83.60% of students always checked the information on the label; mainly the expiry date before use (85.60%). A significant (p < 0.05) portion of the students (51% male and 43% female) perceived it was an acceptable practice as they considered self-medication to be a segment of self-care. Furthermore, students demonstrated differences in their response level towards the adverse effect of drugs, the health hazard by a higher dose of drug, a physician's help in case of side effects, taking medicine without proper knowledge, and stopping selling medicine without prescription. Conclusions: Self-medication was commonly used among pharmacy students primarily for minor illnesses using over-the-counter medications. Although it is an inevitable practice for them it should be considered an important public health problem as this practice may increase the misuse or irrational use of medicines. PMID- 29342984 TI - Amaranthus caudatus Stimulates Insulin Secretion in Goto-Kakizaki Rats, a Model of Diabetes Mellitus Type 2. AB - Diabetes Mellitus Type 2 prevalence is increasing worldwide; thus efforts to develop novel therapeutic strategies are required. Amaranthus caudatus (AC) is a pseudo-cereal with reported anti-diabetic effects that is usually consumed in food preparations in Bolivia. This study evaluated the anti-diabetic nutraceutical property of an AC hydroethanolic extract that contains mainly sugars and traces of polyphenols and amino acids (as shown by nalysis with liquid chromatography-mass spectrometry (LC-MS) and nuclear magnetic resonance (NMR)), in type 2 diabetic Goto-Kakizaki (GK) rats and healthy Wistar (W) rats. A single oral administration of AC extract (2000 mg/kg body weight) improved glucose tolerance during Oral Glucose Tolerance Tests (OGTT) in both GK rats and in W rats. Long-term treatment (21 days) with AC (1000 mg/kg b.w.) improved the glucose tolerance evaluated by the area under the curve (AUC) of glucose levels during the OGTT, in both GK and W rats. The HbA1c levels were reduced in both GK (19.83%) and W rats (10.7%). This effect was secondary to an increase in serum insulin levels in both GK and W rats and confirmed in pancreatic islets, isolated from treated animals, where the chronic AC exposure increased the insulin production 4.1-fold in GK and 3.7-fold in W rat islets. Furthermore, the effect of AC on in vitro glucose-dependent insulin secretion (16.7 mM glucose) was concentration-dependent up to 50 mg/mL, with 8.5-fold increase in GK and 5.7-fold in W rat islets, and the insulin secretion in perifused GK and W rat islets increased 31 and nine times, respectively. The mechanism of action of AC on insulin secretion was shown to involve calcium, PKA and PKC activation, and G protein coupled-exocytosis since the AC effect was reduced 38% by nifedipine (L type channel inhibitor), 77% by H89 (PKA inhibitor), 79% by Calphostine-C (PKC inhibitor) and 20% by pertussis toxin (G-protein suppressor). PMID- 29342985 TI - Community-Based Health and Exposure Study around Urban Oil Developments in South Los Angeles. AB - Oilfield-adjacent communities often report symptoms such as headaches and/or asthma. Yet, little data exists on health experiences and exposures in urban environments with oil and gas development. In partnership with Promotoras de Salud (community health workers), we gathered household surveys nearby two oil production sites in Los Angeles. We tested the capacity of low-cost sensors for localized exposure estimates. Bilingual surveys of 205 randomly sampled residences were collected within two 1500 ft. buffer areas (West Adams and University Park) surrounding oil development sites. We used a one-sample proportion test, comparing overall rates from the California Health Interview Survey (CHIS) of Service Planning Area 6 (SPA6) and Los Angeles County for variables of interest such as asthma. Field calibrated low-cost sensors recorded methane emissions. Physician diagnosed asthma rates were reported to be higher within both buffers than in SPA6 or LA County. Asthma prevalence in West Adams but not University Park was significantly higher than in Los Angeles County. Respondents with diagnosed asthma reported rates of emergency room visits in the previous 12 months similar to SPA6. 45% of respondents were unaware of oil development; 63% of residents would not know how to contact local regulatory authorities. Residents often seek information about their health and site-related activities. Low-cost sensors may be useful in highlighting differences between sites or recording larger emission events and can provide localized data alongside resident-reported symptoms. Regulatory officials should help clarify information to the community on methods for reporting health symptoms. Our community-based participatory research (CBPR) partnership supports efforts to answer community questions as residents seek a safety buffer between sensitive land uses and active oil development. PMID- 29342986 TI - Regioselectivity in Reactions between Bis(2-benzothiazolyl)ketone and Vinyl Grignard Reagents: C- versus O-alkylation-Part III. AB - The reaction between bis(2-benzothiazolyl)ketone and vinyl Grignard reagents bearing different substituents on the vinyl moiety gave the product derived from attack on the carbonylic carbon- and/or oxygen-atom. The regioselectivity of the attack depends on the kind of substituents bound to the vinylic carbon atoms and on their relative position. The reaction between vinylmagnesium bromide and 2 methyl-1-propenylmagnesium bromide was carried out under different experimental conditions and in the presence of radical scavengers. The results indicate a plausible mechanistic pathway involving radical intermediates in the case of O alkylation, but a polar ones in the case of classic C-alkylation. This agrees with our previous reports indicating a key role played by the delocalization ability of the substituents bound to the carbonyl group in driving the regioselectivity of the vinylmagnesium bromide attack towards O-alkylation. Further support of this was obtained by diffractometric analysis of four distinct bis(heteroaryl)ketones. PMID- 29342987 TI - [Innovation is an inexhaustible driving force for the disciplinary development]. PMID- 29342988 TI - [Further improve the level of clinical study and management of pediatric cardiovascular diseases in China]. PMID- 29342989 TI - [Expert consensus on the treatment of vasovagal syncope and postural tachycardia syndrome in children]. PMID- 29342990 TI - [Intensive reading and interpretation of the expert consensus on the treatment of vasovagal syncope and postural tachycardia syndrome in children]. PMID- 29342991 TI - [An analysis of clinical characteristics and acute treatment of supraventricular tachycardia in children from a multicenter study]. AB - Objective: The study assessed the clinical characteristics and response to acute intravenous antiarrhythmic drug therapy of supraventricular tachycardia (SVT) in children. Methods: This was a multicenter prospective descriptive study including 257 children from First Hospital of Tsinghua University, Peking University First Hospital, Children's Hospital Affiliated to Capital Institute of Pediatrics and Beijing Anzhen Hospital who received intravenous antiarrhythmic drug therapy for SVT from July 2014 to February 2017. The clinical and tachycardia features, response to intravenous antiarrhythmic drug therapy of these children were characterized. Statistical analyses were performed using t test, Mann-Whitney U test, chi(2) test and H test. Results: The onset of SVT occurred at any age with a distribution with positive skewness, 57.6% (n=148) children<1 year, 17.5% (n=45) children1~<3 years, 10.5% (n=27) children 3~<6 years and 14.4% (n=37) children >= 6 years of age. The percentages of SVT types were 49.4% (n=127) for atrioventricular reentry tachycardia (AVRT), 4.3% (n=11) for atrioventricular nodal reentry tachycardia (AVNRT), 26.8% (n=69) for unclassified paroxysmal SVT and 19.5% (n=50) for atrial tachycardia (AT), respectively. Tachycardia-induced cardionyopathy (TIC) secondary to SVT developed in 30 of 225 (13.3%). Left ventricular ejection fraction (LVEF) of the 27 children attacked by TIC returned to normal after successful control of SVT (41.1%+/-6.3% vs. 60.3%+/-9.2%, t= 10.397, P=0.000). Complete termination of SVT by antiarrhythmic drugs was achieved in 164 of 257 (63.8%), partial termination rate was 18.7% (48 of 257) and failure to terminate rate was 17.5% (45 of 257). Propafenone (complete cardioversion in 98 (73.1%) of 134) and amiodarone (complete cardioversion in 23 (76.7%) of 30) showed better efficacy for SVT termination than adenosine (complete cardioversion in 26 (44.1%) 59) (chi(2)=20.524, P=0.000). Paroxysmal SVT had a higher termination rate on pharmacological therapy than AT (67.1% vs. 50.0%, chi(2)=6.337, P=0.042). Patients of different age groups had significantly different response to antiarrhythmic therapy (chi(2)=13.904, P=0.031). Children<1 year of age showed the least response to antiarrhythmic drug therapy with complete termination in 51 (55.4%) of 92. Adverse effects occurred in 9 patients (3.5%): Four patients had severe hypotensive shock using propafenone (n=3) and adenosine (n=1), and 3 patients had sinus arrest using adenosine. Conclusion: Most (57.6%) children with SVT have their first clinical episode within 1 year of age, and AVRT is the most common type. TIC occurs in 13.3% of children with SVT. Intravenous antiarrhythmic drug therapy has a 63.8% complete termination rate for children with SVT and incidence of adverse effects is 3.5%. Propafenone and amiodarone are more effective for SVT termination in children than adenosine. Serious adverse effects may occur when using propafenone. PMID- 29342992 TI - [Radiofrequency catheter ablation of premature ventricular contractions in children under CARTO3 system: a retrospective study from one single center]. AB - Objective: To evaluate the clinical effect and summarize the experience of radiofrequency catheter ablation (RFCA) for children suffered from premature ventricular contractions (PVCs). Methods: This retrospective study was conducted by descriptive analysis. A total of 108 cases with frequent PVCs from Shanghai Children's Medical Center were treated with RFCA under the guidance of CARTO3 system from January 2011 to December 2016. The immediate success rate of the procedure, the recurrence rate and the perioperative complications were summarized. The constituent ratio of different PVCs origins, the trend of overall procedure time and success rate in recent years were analyzed. Statistical analyses were performed using F test. Results: Immediate success of RFCA was achieved in 104 cases (96.3%, 104/108) and 4 cases (3.7%, 4/108) failed. The PVCs recurred during follow-up of over 6 months in 5 cases (4.8%, 5/104) . There were no severe complications related to the procedure. The sites of PVCs origin, in 52 cases originated from right ventricular outflow track (48.2%, 52/108) , 17 cases originated from left ventricular outflow track (15.7%, 17/108) and 26 cases originated from tricuspid annulus (24.1%, 26/108) . Among the three predilection sites of PVCs, the operation time was (141+/-46) min for right ventricular outflow track, (155+/-50) min for left ventricular outflow track, and (166+/-57) min for tricuspid annulus. However, the difference was not statistically significant (F=1.79, P=0.17) . X-ray exposure time was (14+/-8) minutes for right ventricular outflow track ablation, (32+/-14) minutes for left ventricular outflow track ablation and (16+/-8) minutes for tricuspid annulus ablation respectively. The exposure time for the ablation on left ventricle was significantly longer than the other two sites (F=5.12, P=0.018) . Conclusion: RFCA is safe and effective for PVCs in children with high success rate and low recurrence and complication rates. PMID- 29342993 TI - [Analysis of prognosis and associated risk factors in pediatric idiopathic pulmonary arterial hypertension]. AB - Objective: To analyze the prognosis and associated risk factors of pediatric idiopathic pulmonary arterial hypertension. Methods: A total of 119 patients under 18 years of age diagnosed as idiopathic pulmonary arterial hypertension in the Pulmonary Arterial Hypertension Center in Beijing Anzhen Hospital between June 2007 and May 2017 were enrolled in this retrospective study. The clinical informations and follow-up data were collected. The endpoints of follow-up were defined as death or undergoing lung transplantation. Kaplan-Meier survival curve was used to assess the survival,and the COX risk regression model was used to analyze the prognostic risk factors. Results: The mean age at diagnosis was (5.9+/-4.2) years. For 92 (77.5%) patients, the main reason for visit was decreased activity with shortness of breath after exercise. Seventy patients (58.8%) were in baseline NYHA functional class III-IV and 49 patients (41.2%) were in NYHA functional class I-II. The mean systolic pulmonary arterial pressure estimated by echocardiography was (90+/-23) mmHg (1 mmHg=0.133 kPa) . Right heart catheterization was performed in 50 patients. Hemodynamic parameters revealed that the mean pulmonary artery pressure was (66+/-19) mmHg. Mean right atrium pressure was (8.5+/-3.4) mmHg. Mean pulmonary vascular resistance index was (17+/ 9) wood.m(2) and the mean cardiac index was (3.4+/-1.3)L/m(2); 100 patients (84.0%) received targeted therapy in which 55 patients (46.2%) were on monotherapy,40 patients (33.6%) were on dual therapy and 5 patients (4.2%) were on triple therapy. The mean time of follow-up was 22.0 months (0-108 months). During follow-up, 43 patients (36.1%) died and 1 patient received double-lung transplantation. Main causes of death including right heart failure, pulmonary hypertension crisis, asphyxia and massive hemoptysis. The mean survival time from diagnosis was 37.0 months,1-,2-,3-and 5-year survival rates were 86.3%, 72.2%, 51.4%and 37.8% respectively. Survival analysis showed that patients in baseline NYHA functional class I-II had better prognosis. COX regression analysis showed that NYHA function class, edema, increased total bilirubin and troponin concentration and the pulmonary artery and aorta diameter ratio measured by echocardiogram are risk factors of pediatric IPAH (HR=2.310, 2.723, 1.066, 1.696, 3.719, P=0.028, 0.005, 0.001, 0.024, 0.030) . While the existence of aterial septal defect or patent foramen ovale, using bosentan and phosphodiesterase inhibitors(,) dual or triple therapy were protective factors (HR=0.563, 0.559, 0.603, 0.682, 0.044, P=0.169, 0.076, 0.115, 0.258, 0.220) . In multivariate analysis only edema associated with decreased survival (HR=2.398, P=0.025) . Conclusion: Childhood idiopathic pulmonary arterial hypertension patients are seriously ill at visit. Worse cardiac function classification at visit associate with high mortality. Target therapy including using bosentan, dual or triple therapy can improve survival. PMID- 29342994 TI - [Report of antimicrobial resistance surveillance program in Chinese children in 2016]. AB - Objective: To analyze the antimicrobial resistance profile in Chinese children. Methods: This was a prevalence survey. From January 1 through December 31, 2016, the isolates were collected from 10 tertiary children hospitals in China. Antimicrobial susceptibility testing was carried out by routine laboratory methods. The penicillin susceptibility of streptococcus pneumonia and Meropenem susceptibility of gram-negative bacteria were detected by E-test and disk diffusion method respectively. Antimicrobial susceptibility results were interpreted according to the criteria of Clinical and Laboratory Standards Institute (CLSI) Guideline 2016. The data of antimicrobial susceptibility testing of isolates from either the different patients (neonatal group and non-neonatal group) or various sources were analyzed by WHONET 5.6 software. Results: A total of 56 241 isolates were collected, of which 41.5% (23 328 isolates) were gram positive organisms and 58.5% (32 886 isolates) gram-negative organisms. The five leading pathogens were Escherichia coli (7 995/56 214, 14.2%), Straphylococcus aureus (6 468/56 214, 11.5%), Streptococcus pneumonia (6 225/56 214, 11.1%), Haemophilus influenza (5 435/56 214, 9.7%) and Klebsiella pneumonia (4 523/56 214, 8.0%). The Meropenem resistance rates of Klebsiella pneumonia, Enterobacter cloacae, Escherichia coil, Pseudomonas aeruginosa, Acinetobacter baumonia isolates were 27.4% (326/1 189) , 8.1% (29/358) , 2.0% (27/1 362) , 19.5% (34/174) , 49.7% (230/463) in neonatal group and 15.4% (512/3 327) , 4.8% (40/841) , 2.3% (151/6 564) , 13.7% (252/1 840) , and 53.4% (860/1 611) in non neonatal group. The Methicillin-resistant Staphylococcus aureus (MRSA) rates of neonatal group and non-neonatal group were 46.2% (649/1 404) and 33.3% (1 668/5 010) . The penicillin non-susceptible rates of Streptococcus pneumonia in the two groups were 17.6% (6/34) and 18.2% (1 121/6 158) respectively. The beta-lactamase positive rates of Haemophilus pneumonia isolates in the neonatal group and non neonatal groups were 33.8% (47/139) and 44.4% (2 345/5 282) respectively. Conclusion: This investigation highlights the worrisome trend of antimicrobial resistance in children, especially among neonatal patients in China. PMID- 29342995 TI - [Pediatric myeloid neoplasms associated with eosinophilia and platelet-derived growth factor receptor beta gene rearrangement: a case report and literature review]. AB - Objective: To investigate the clinical features and therapeutic strategies of childhood myeloid neoplasms associated with eosinophilia and platelet-derived growth factor receptor beta (PDGFRB) gene rearrangement. Methods: Clinical data of myeloid neoplasms associated with eosinophilia and t (1;5) (q21;q33) chromosomal translocation of PDGFRB gene rearrangement in a child hospitalized in Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences on May 2015 was collected and analyzed. Using'eosinophilia child'and'PDGFRB'as keywords, the relevant reports in literature were searched from China National Knowledge Infrastructure (CNKI), Wanfang Data Knowledge Service Platform, and Biomedical Literature Database (PubMed) until April 2017. Results: The patient was a boy, 19 months old, who began to get sick at six months after birth, with the main clinical manifestations of high fever, diarrhea, epistaxis and hepatosplenomegaly. Peripheral blood smear showed a significant elevation in white blood cells (127*10(9)/L) and eosinophils(20.32*10(9)/L). Bone marrow examination showed hyperplastic marrow, increased proportion of granulocytes, apparent visible eosinophils and decreased megakaryocytes. Chromosome karyotype detection revealed t (1; 5) (q21; q33) translocation. Fluorescence in situ hybridization (FISH) examination uncovered that PDGFRB gene rearrangement was positive. The final diagnosis was myeloid neoplasms with eosinophilia and PDGFRB gene rearrangement. After treatment with oral imatinib 100 mg, once a day for 2 months, complete hematologic remission, complete cytogenetic and molecular remission were all achieved. The relevant literature was reviewed, no Chinese cases had been reported, 6 reports in English literature have complete clinical data. Four cases had t (1; 5) translocation. Four pediatric patients treated with imatinib achieved complete remission. Conclusion: Myeloid neoplasms associated with eosinophilia and PDGFRB gene rearrangement is extremely rare in children. Imatinib treatment can make these patients quickly achieve complete hematologic remission, complete cytogenetic and molecular remission. Imatinib should be recommended as the first line treatment of these patients. PMID- 29342996 TI - [Optimal energy supply in different age groups of critically ill children on mechanical ventilation]. AB - Objective: To analyze the resting energy expenditure and optimal energy supply in different age groups of critically ill children on mechanical ventilation in pediatric intensive care unit (PICU). Methods: Patients on mechanical ventilation hospitalized in PICU of Beijing Children's Hospital from March 2015 to March 2016 were enrolled prospectively. Resting energy expenditure of patients was calculated by US Med Graphic company critical care management (CCM) energy metabolism test system after mechanical ventilation. Patients were divided into three groups:<3 years, 3-10 years, and >10 years. The relationship between the measured and predictive resting energy expenditure was analyzed with correlation analysis; while the metabolism status and the optimal energy supply in different age groups were analyzed with chi square test and variance analysis. Results: A total of 102 patients were enrolled, the measured resting energy expenditure all correlated with predictive resting energy expenditure in different age groups (<3 years (r=0.3, P=0.0) ; 3~10 years (r=0.6, P=0.0) ;>10 years (r=0.5, P=0.0) ) . A total of 40 cases in < 3 years group, including: 14 cases of low metabolism (35%), 14 cases of normal metabolism (35%), and 12 cases of high metabolism (30%); 45 cases in 3-10 years group, including: 22 cases of low metabolism (49%), 19 cases of normal metabolism (42%), 4 cases of high metabolism (9%); 17 cases in>10 years group, including: 12 cases of low metabolism (71%), 4 cases of normal metabolism (23%), 1 case of high metabolism (6%). Metabolism status showed significant differences between different age groups (chi(2)=11.30, P<0.01, r= 0.01). Infants had higher metabolic status, which lessened with aging. The total average actual energy requirement was (210+/-84) kJ/ (kg?d) . There were significant differences in actual energy requirement between age groups (F=46.57, P<0.001), with (277+/-77) kJ/ (kg?d) in<3 years group, (184+/-53) kJ/ (kg?d) in 3 10 years group, and (120+/-30) kJ/ (kg?d) in>10 years group. Conclusion: The resting energy metabolism of the critically ill children on mechanical ventilation is negatively related to the age. The actual energy requirement should be calculated according to different ages. PMID- 29342997 TI - [X-linked inhibitor of apoptosis deficiency manifested as Crohn's disease: a case report and literature review]. AB - Objective: To analyze the clinical characteristics of X-linked inhibitor of apoptosis (XIAP) deficient patients with clinical manifestation of Crohn's disease. Methods: Clinical manifestations, laboratory investigations, genetic testing and therapeutic interventions of one case of XIAP deficiency who was admitted to Department of Gastroenterology in Children's Hospital, Zhejiang University School of Medicine in May 2016 were summarized. PubMed and Chinese database for articles published from January 2016 to June 2017 were searched using the key words of'Crohn's disease'and'XIAP', and the relevant literature was reviewed. Results: The case we reported was a 6-year-1-month-old boy with recurrent bloody stool for 2 months, and abdominal pain with fever for 2 weeks. The patient had a past history of hemophagocytic lymphohistiocytosis (HLH) and epilepsy in the past one year. Complete blood cell count showed mild anemia (Hb108 g/L). The patient had an elevated high-sensitivity C reactive protein (86 mg/L) and erythrocyte sedimentation rate (46 mm/1h) . White blood cells, pus cells and red blood cells were found on routine stool examination. Biochemical panel showed hypoalbuminemia (25.2 g/L) , elevated transaminase (alanine aminotransferase 175 U/L, aspartate transaminase 229 U/L) , hypertriglyceridemia (4.41 mmol/L) , and hyperferritinemia (>1 650.0 MUg/L) . Magnetic resonance enterography revealed the intestinal wall thickening and increased enhancement in parts of illeum and colon. Capsule endoscopy revealed multiple ulcers in jejunum. Colonoscopy showed multiple ulcers in colon and the pathological examination revealed chronic inflammation in mucosa of terminal ileum and colon, which was combined with partial necrosis and ulceration. Some phagocytes were seen in bone marrow smears. The patient was given multiple diagnoses, including hemophagocytic lymphohistiocytosis, Crohn's disease, sepsis, epilepsy, severe malnutrition, and hypoproteinemia. The pediatric Crohn's disease activity index (PCDAI) was 37.5. Genetic testing identified a hemizygotic mutation of c.910G>T chrX:123022501 p.G304X in XIAP. The parents had no such mutation. The patient showed response to infliximab with oral intake of mercaptopurine and corticosteroids, and had remission with PCDAI of 0. There were 9 relevant articles (Chinese 0 English 9), which showed 33.3% XIAP deficient patients manifested with inflammatory bowel disease(IBD), who might have other manifestations such as hemophagocytic lymphohistiocytosis or splenomegaly simultaneously or sequentially. Those patients showed poor response to monotherapy. Conclusion: XIAP deficient patients have various clinical manifestations. Genetic testing is important to those male pediatric IBD patients who have the complicated symptoms or little response to standard therapy. PMID- 29342998 TI - [X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection, and neoplasia: report of a family and literature review]. AB - Objective: To investigate the clinical features and genetic characteristics of cases with X-linked immunodeficiency with magnesium defect, Epstein-Barr virus (EBV) infection, and neoplasia (XMEN). Methods: Characteristics of clinical material, immunological data and gene mutation of two cases with XMEN in the same family in China were retrospectively analyzed. The related reports literature were searched by using search terms'MAGT1 gene'or'XMEN'. Results: The proband, a 2-year-eight-month old boy, was admitted due to 'Urine with deepened color for two days and yellow stained skin for one day'. He had suffered from recurrent upper respiratory tract infection and sinusitis previously. Hemoglobin level was 38 g/L. The absolute count of reticulocytes was 223.2*10(9)/L. Urobilinogen level was 38 MUmol/L (3-16 MUmol/L). Coomb's test was positive. Both total (77.2 MUmol/L) and indirect bilirubin (66 MUmol/L) levels were elevated. There was an inverted CD4(+)/CD8(+)T cell ratio (0.89). The gene sequencing results showed MAGT1 gene c.472delG, p.D158Mfs*6 mutation. His 1-year-6-month old brother, was also identified to have MAGT1 gene c.472delG, p.D158Mfs*6 mutation.The younger brother mainly suffered from recurrent upper respiratory tract infection, accompanied by an inverted CD4(+)/CD8(+)T cell ratio (0.45), an elevated ratio and number of total B cells (45.7%). A total of 7 reports were retrieved including 11 male cases caused by MAGT1 gene mutation. These 11 cases were characterized by EBV viremia (11 cases), recurrent upper respiratory tract infection, otitis media or sinusitis (10 cases), secondary neoplasia diseases (8 cases), reduction of CD4(+)/CD8(+) T cell ratio (7 cases),and autoimmune thrombocytopenia or hemolytic anemia (2 cases). Conclusion: XMEN often manifests as male onset, recurrent upper respiratory tract infection, otitis media or sinusitis, EBV viremia, lymphoproliferative disease or lymphoma, autoimmune diseases and reduction of CD4(+)/CD8 (+)T cell ratio. NKG2D expression in NK cells is significantly reduced, and gene sequencing analysis shows a pathogenic mutation in MAGT1 gene. PMID- 29343000 TI - [X-linked hyper-IgM syndrome complicated interstitial lung disease induced by virus in two pediatric cases]. PMID- 29343001 TI - [Pulmonary mucoepidermoid carcinoma in a child]. PMID- 29342999 TI - [Risk factors analysis and prognosis of renal pelvis dilatation in high-risk infants in monocenter]. AB - Objective: To explore the prognosis and risk factors of pyelectasis in high-risk infants. Methods: This was a retrospective study. Totally 960 high-risk infants, who accepted type B ultrasonic examination for fetus at 28th week of gestation and for newborns in 48 hours after birth, were included in the study in departments of obstetrics and eonatology, Shunyi Maternal and Children's Hospital of Beijing Children's Hospital during May 2012 to April 2013. The degree of pyelectasis was classified using Grignon grade and the paients were followed up for 3 years. The factors of epidemiology, high risk pregnant women, fetus and high-risk newborns that relate to pyelectasis were summarized. High-risk factors were analyzed by using logistic multivariate regression analysis. Results: Of 960 high-risk infants, 103 had abnormal urinary ultrasound results, 87 (9.1% of high risk infants) were diagnosed with pyelectasis, 16 (1.7% of high-risk infants) were diagnosed with congenital anomalies of the kidney and urinary tract. According to the degree of pyelectasis, 68 infants were Grignon grade I, male:female ratio=5.8?1, left side:right side ratio=1.91?1; 19 infants were Grignon grade II, male:female ratio=5.33?1, left side:right side ratio=2.12?1. Postnatal follow-up results showed that pyelectasis disappeared in 48 cases (55% of pyelectasis cae), 40 infants were Grignon grade I (59% of all Grignon grade I patients), 8 infants were Grignon grade II (42% of all Grignon grade II patients); The result of risk factors analysis showed that the risk of pyelectasis in males was 4.368 times that of females (95%CI: 2.33-8.189, P<0.05); the risk of pyelectasis in low birth weight infants was 22.434 times that of non low birth weight infants (95% CI: 5.883-85.547, P<0.05). Conclusion: The incidence of pyelectasis in high-risk infants was 9.1%. The mitigation rate of pyelectasis in Grignon grade I to II in fetal or newborn period is high. Patients in Grignon grade III and above in fetal or new born period had high risk of congenital anomalies of the kidney and urinary tract. The risk of pyelectasis of male was higher than that of female; the risk of pyelectasis of low birth weight infant was higher than appropriate for gestational age infants. PMID- 29343002 TI - [A case of abdominal Castleman disease]. PMID- 29343003 TI - [Schuurs-Hoeijmakers syndrome in a child]. PMID- 29343004 TI - [Fanconi-Bickel syndrome with SLC2A2 gene mutation in a child]. PMID- 29343005 TI - [Role of long noncoding RNA in chronic hepatitis B infection]. PMID- 29343006 TI - [Epidemiology of heart arrest in children]. PMID- 29343008 TI - [Effects of obstructive sleep apnea syndrome on vascular endothelial function in and mechanisms children]. PMID- 29343007 TI - [Introduction to the 6th National Conference of Pediatric Syncope]. PMID- 29343009 TI - [The thinking and challenge from the drug-resistant tuberculosis guidelines by World Health Organization]. PMID- 29343010 TI - [Diagnosis and treatment of extrapulmonary non-tuberculous mycobacterial diseases]. PMID- 29343011 TI - [Molecular genetic mechanism of anti-tuberculous drug induced liver injury]. PMID- 29343012 TI - [The effectiveness of individualized treatment regimen on smear-positive retreatment pulmonary tuberculosis with mono- and poly-drug resistance]. AB - Objective: To analyze and evaluate the effectiveness of individualized treatment regimen in the therapy of smear-positive retreatment pulmonary tuberculosis with mono-and poly-drug resistance, and therefor to provide information on how to develop rational individualized regimen for retreatment tuberculosis cases with drug resistance. Methods: This was a multi-centered, prospective cohort study. Totally 254 cases of sputum positive tuberculosis with previous treatment history during the period from July 1, 2009 to August 30, 2016 were included in the analysis. All the cases were randomly divided into 3 groups and received therapy after randomization into treatment groups. After 3 months, cases with multidrug resistant tuberculosis, extensively drug-resistant tuberculosis, non-tuberculosis mycobacterial infection and those with smear-positive but culture-negative tuberculosis were excluded according to result of sputum culture and drug susceptibility test (DST). In treatment group A (individualized treatment group), 86 cases with an average age of (42.1+/-13.7) years for men and (38.5+/-12.8) years for women, were treated with individualized regimen, which allowed drug replacement on the basis of standard regimen (2SHRZE/6HRE) according to DST result. Treatment duration was recalculated after drug replacement and the total length should be 12 months or more. If the DST result did not show drug resistance, the patients would continue the 8 months' standard treatment. In treatment group B (intensified retreatment regimen group), 86 cases with an average age of (43.2+/-14.2) years for man and (37.9+/-14.1) years for women, received intensified retreatment regimen (2HL(2)EZS/2HL(2)EZS(3)/4HL(2)E). The dose for H was 0.3 g/d for patients with body weight <50 kg, and 0.4~0.5 g/d for higher body weight (>=50 kg); The doses for L(2,)E and Z were 0.6 g, 2/w; 0.75, 1/d and 0.5g, 3/d. In treatment group C (standard treatment group), 82 cases with an average of (42.5+/-11.9) years for man and (38.6+/-12.8) years for women, were treated with standardized regimen recommended by national tuberculosis program (2HREZS/6HRE). In both group B and C, the total treatment duration was 8 months and the drugs were not replaced for mono-and poly-drug resistance. Treatment outcomes of the 3 groups were analyzed, the status of drug replacement in group A was analyzed, and the adjustment of dose of H and R according to patients' body weight was observed. SPSS 19.0 was used for data analysis. Results: The treatment cure rates for group A, B and C were 73.3%(63/86), 76.7%(66/86) and 50%(41/82), and the treatment success rates were 80.2%(69/86), 84.9%(73/86) and 62.2%(51/82) respectively. Treatment failure was 8.1%(7/86), 4.7%(4/86) and 19.5%(16/82) in 3 groups. There were significant differences in the above indicators for group A and B in comparison with group C(chi(2)=13.127, P=0.001). However, there was no difference observed between group A and B(chi(2)=0.646, P=0.422). In group A, tuberculosis specialized hospitals using regular doses for R was only 38.7%(12/31). After 3 years' follow-up, no-relapse-success for group A was 66.7% (10/15). Conclusions: Inappropriate individualized treatment would increase treatment failure for retreatment tuberculosis. Higher doses of H and R and prolonged extensive therapy phase could contribute to increased treatment success. PMID- 29343013 TI - [The plasma level and gene expression in peripheral blood of interleukin-35 in patients with sarcoidosis and its clinical significance]. AB - Objective: To investigate the expression of interleukin(IL)-35 protein and gene in peripheral blood of patients with sarcoidosis and its clinical significance. Methods: Peripheral blood samples from 98 patients with sarcoidosis and 98 healthy volunteers were collected at Peking Union Medical College Hospital between January 2016 and March 2017. The plasma levels of IL-35 were detected by enzyme-linked immunosorbent assays (ELISA), and the relationship between IL-35 and the clinical characteristics was analyzed. Real-time quantitative PCR was used to detect the expression levels of IL-35 subunit EBI3, p35 and T regulatory cell transcription factor Foxp3 mRNA in peripheral blood mononuclear cells, and their correlations were analyzed. Results: The plasma levels of IL-35 in patients with sarcoidosis (44+/-12) ng/L was significantly lower than that in the normal control group (55+/-12) ng/L (P<0.001). There was a positive correlation between the plasma levels of IL-35 and D(L)CO% predicted values (r=0.76, P<0.001), but it showed no significantly correlation with other clinical parameters. The expression of EBI3 and Foxp3 mRNA in peripheral blood mononuclear cells of patients with sarcoidosis (1.54+/-0.74, 0.92+/-0.36) were significantly lower than those in the normal control group respectively (2.12+/-0.61, 1.10+/-0.27, all P<0.05). There was a significant positive correlation between the expression of EBI3 and Foxp3 mRNA in the sarcoidosis group (r=0.786, P<0.001). Conclusion: IL-35 may be involved in the inflammatory process of sarcoidosis and play an important role in the pathogenesis of the disease. PMID- 29343014 TI - [Correlation between peripheral venous oxygen saturation and hemodynamic parameters in patients with pulmonary hypertension]. AB - Objective: To investigate the correlation of peripheral venous oxygen saturation (SpvO(2)) with mixed venous oxygen saturation (SvO(2)), pulmonary vascular resistance (PVR) and cardiac index (CI) in patients with pulmonary hypertension (PH), in order to predict these parameters using SpvO(2) and assess the prognosis of patients. Methods: Hospitalized patients diagnosed with PH by right heart catheterization in the Guangzhou Institute of Respiratory Diseases from July 2015 to October 2016 were retrospectively analyzed. Parameters during the right heart catheterization, including SvO(2,)SpvO(2,)cardiac output (CO) and mean pulmonary arterial pressure (mPAP) were recorded, while CI, PVR and other parameters were indirectly calculated. The correlation between SpvO(2) and SvO(2,)CO, CI, mPAP, PVR and other parameters were respectively analyzed and compared between groups. Results: A total of 77 PH patients were selected, which comprised of 39 males and 38 females. The results revealed that SpvO(2) was correlated positively with SvO(2,)CI and PaO(2) (P<0.05), but negatively with PVR, total pulmonary resistance (TPR), systemic vascular resistance, right atrial diameter and right ventricular diameter (P<0.05). In the group with SpvO(2) <65%, the dilation of the right atrium and right ventricle was more significant, the WHO heart function grade was worse, CI, systemic systolic pressure and mean systemic pressure were lower, and PVR and TPR were higher, as compared to those in the group with SpvO(2) >=65%. (P<0.05). Conclusions: There was good consistency between SpvO(2) and SvO(2). Furthermore, SpvO(2) could indirectly reflect the CI, PVR and changes in right heart structure of PH patients, providing reference for the clinical prediction of CI and PVR, as well as the prognosis of PH patients, through the use of SpvO(2). Low SpvO(2) indicated a severe condition and poor prognosis. PMID- 29343015 TI - [Clinical and imaging features of pulmonary veno-occlusive disease and pulmonary capillary hemangioma]. AB - Objective: To improve the diagnosis and treatment of the pulmonary veno-occlusive disease (PVOD) and pulmonary capillary hemangioma (PCH). Methods: The clinical features, radiological findings, laboratory testing and treatment in 8 cases of PVOD/PCH which was diagnosed from 2013 to 2017 were described. Results: PVOD/PCH was rare. The clinical symptoms were easily confused with IPAH, but the decrease of hypoxemia, clubbing, D(L)CO were more obvious, and the imaging features of HRCT were helpful for PVOD/PCH diagnosis. Combined with gene testing, it was helpful to diagnose PVOD/PCH and avoid the risk of surgical biopsy. Conclusion: PVOD and PCH are rare type of pulmonary vascular diseases. According to clinical manifestations, physical examination, pulmonary function test results, HRCT imaging, CPET and gene detection results, PVOD or PCH can be diagnosed. PMID- 29343017 TI - [Review of meropenem-clavulanate combination in the treatment of multidrug resistant and extensively durg-resistant tuberculosis]. PMID- 29343016 TI - [Effectiveness and safety in bronchoscopy under anesthesia with fentanyl combined with midazolam]. AB - Objective: To study the effectiveness and safety in bronchoscopy under anesthesia with fentanyl combined with midazolam. Methods: We randomly allocated 132 patients( male 69, female 63, median age 62.9 years)requiring bronchoscopy in Beijing Xuanwu Hospital into 2 groups during January 2015 to December 2016.The trial group included 66 patients, receiving fentanyl combined with midazolam for anesthesia, while the control group of 66 patients receiving 2% lidocaine for topical anesthesia.In the trial group, there were 37 males and 29 females, with a median age of 63 years (range 26-82). In the control group, there were 36 males and 30 females, with a median age of 62.8 years (range 30-82). The pulse, mean arterial pressure, and the oxygen saturation of the patients were recorded before anesthesia and 5 minutes after deep anesthesia was reached. Changes of vital signs and adverse reactions during the bronchoscopy were also observed. Results: The fluctuation of pulse(12.3+/-2.3)/min, mean arterial pressure(5.9+/-2.2)mmHg(1 mmHg=0.133 kPa) and oxygen saturation(4.4+/-1.3)%was lower in the trial group as compared to that of the control group, pulse(21.9+/-1.8)/min, mean arterial pressure(7.1+/-2.3)mmHg, oxygen saturation(13.3+/-4.2)%, P<0.001.Five minutes after anesthesia, the pulse(80.0+/-11.9)/min, the mean arterial pressure(95.0+/ 9.7)mmHg and the oxygen saturation(90.0+/-5.67)%of patients in the trial group were lower than those in the control group [pulse(90.3+/-17.0)/min, mean arterial pressure(102.7+/-12.4)mmHg, oxygen saturation(96.5+/-3.0)%], the differences being statistically significant(P<0.001). The trial group also showed smaller fluctuation, better tolerance, and fewer adverse reaction sthan the control group. Conclusion: Fentanyl combined with midazolam is safe and effective in bronchoscopy with fewer adverse reactions, but its early effect on the vital signs should be monitored and stricter indications may be needed. PMID- 29343018 TI - [Research progress of exosomes in lung diseases]. PMID- 29343019 TI - [Advances in preoperative screening of obstructive sleep apnea hypopnea syndrome]. PMID- 29343020 TI - [The application of noninvasive positive pressure ventilation to a pulmonary rehabilitation program in patients with chronic obstructive pulmonary Disease]. PMID- 29343021 TI - [The role of aquaporin in the development of pulmonary diseases]. PMID- 29343022 TI - [Inheriting the excellence to innovate medical research in China]. PMID- 29343023 TI - [Emphasis on perioperative and long-term treatment is the key to improve the prognosis of patients with craniopharyngiom]. PMID- 29343024 TI - [Hypopituitarism mode in patients with craniopharyngioma in relation to tumor growth pattern]. AB - Objective: To investigate the pituitary hormone changes of patients with craniopharyngioma of different growth patterns during perioperative period and follow up time. Methods: Retrospective studies were performed on 212 cases of primary craniopharyngioma patient who received total tumor excision surgery in our hospital from January 2001 to May 2012. The characteristics of pituitary hormone and associated clinical manifestation during preoperative, perioperative and postoperative periods were analyzed according to the QST surgical classification. Results: One hundred and seventy-seven (83.5%) of patients present preoperative hypopituitarism, 36 of them were panhypopituitarism. The hypopituitarism condition was exacerbated during the early stage of post operation period. The abnormal rates of HPA and HPT during the follow up were 60.1% and 58.3% respectively and hormone replacement treatment was needed for these patients. Craniopharyngioma of different growth patterns showed diversities in the characteristics of hypopituitarism. Conclusion: QST surgical classification was closely associated with the pattern of hypopituitarism, it can help to optimize treatment and prognosis estimation, and could be important criterion for improving the clinical practice of neuroendocrine monitoring, treatment and health education of patients with craniopharyngioma. PMID- 29343025 TI - [Correlation between the parameters of acoustic cardiography and BNP, LVEF and cardiac function grading in patients with chronic heart failure]. AB - Objective: To explore the correlation between the parameters of the new generation of Acoustic Cardiography and brain natriuretic peptide (BNP), left ventricular ejection fraction (LVEF) and cardiac function grading in the diagnosis of heart failure. Methods: One hundred and sixty-eight inpatients, who were hospitalized in Department of Cardiology, Haikou People's Hospital from May 2016 to July 2017, were enrolled as heart failure group, including NYHA class I(n=29), NYHA class II(n=40), NYHA class III(n=64), NYHA class IV (n=35). And eighty-seven patients with normal cardiac function were selected as healthy control group. The data of the two groups were analyzed after the Acoustic Cardiography test, BNP determination and LVEF examination. Results: The differences in QRS duration, electromechanical activation time (EMAT), EMAT%, systolic dysfunction index (SDI), third heart sound (S3) and other indicators among the groups with different levels of cardiac function were statistically significant (P<0.05). The difference in left ventricular systolic time (LVST) between the cardiac function grade I and healthy group was not significant (P>0.05), while the differences among the rest groups were significant. There was a positive correlation between QRS duration, EMAT%, SDI, S3 and BNP (t=9.46, 11.38, 12.14, 9.67, respectively, P<0.05); LVST and BNP were negatively correlated (t=-14.27, P<0.05). There was a negative correlation between QRS duration, EMAT%, SDI, S3 and LVEF (t=11.24, -8.764, -2.393, -0.579, respectively, P<0.05). There was a positive correlation between LVST and LVEF (t=23.48, P<0.05). There was a positive correlation between QRS duration, EMAT%, SDI, S3 and cardiac function grading (beta=0.003, 0.234, 0.419, 0.352, respectively, P<0.05). There was a negative correlation between LVST and cardiac function grade (beta=-0.021, P<0.05). Conclusion: The parameters of the Acoustic Cardiography test (EMAT%, EMAT, SDI, S3 ) are closely related to BNP, LVEF and cardiac function grading, and can be used as assistant indexes for the diagnosis and evaluation of heart failure. PMID- 29343026 TI - [Applied research of "quadri-low" combined with automatic tube current modulation and iterative model reconstruction technology in head and neck CT angiography]. AB - Objective: To investigate the feasibility of low tube voltage, low contrast medium concentration, injection rate and volume (quadri-low) combined with automatic tube current modulation (ATCM) and iterative model reconstruction (IMR) technology in head and neck CT angiography (CTA). Methods: A total of 70 patients whose body mass index (BMI)<25 kg/m(2) underwent head and neck CTA and digital subtraction angiography (DSA) from January to July 2017 were enrolled in this prospective study. According to random number table, patients were divided into two groups: group A (n=35) was scanned according to the protocol of 120 kV, 150 mAs, 50 ml and 5 ml/s iopromide (370 mg/ml) and filtered back projection (FBP) reconstruction; group B (n=35) was scanned with 80 kV, ATCM with mean tube current of 100 mAs, 30 ml and 3 ml/s iohexol (300 mg/ml) and IMR; the other parameters kept consistent between the two groups. The maximum transverse neck diameter at the level of the hyoid bone, artery CT value and image noise were measured, signal to noise ratio (SNR), contrast to noise ratio (CNR) and figure of merit (FOM) were calculated, and the image quality was evaluated subjectively and compared with those reconstructed by DSA. Scan length, volume CT dose index (CTDIvol) and dose length product (DLP) were recorded, and the effective dose (ED) was calculated. The chi-square and independent-sample t tests were used to compare the inter-group differences in these aforementioned data. Resutls: No significant difference was found in general information between the two groups. No significant difference existed in artery CT value, image noise, SNR and CNR between the two groups (t=-1.170-1.365, all P>0.05); however, the FOM of group B (74+/-40) was significantly higher than that in group A (12+/-4) (Z=-7.195, P=0.000). The image quality of the two groups met the requirement of clinical diagnosis[(4.1+/-0.7) vs (4.2+/-0.8) points, Z=-0.592, P>0.05], no significant difference was found in subjective evaluation and diagnostic efficacy. The CTDIvol, DLP and ED in group B were all significantly lower than those in group A (Z=-7.728, -7.202, -7.206, all P<0.05). The iodine load and iodine delivery rate (IDR) of group B was lower than that of group A (18.5 g vs 9.0 g, 1.85 mg/s vs 0.90 mg/s), and they were reduced for 51.4% in group B. Conclusions: For patients of BMI <25 kg/m(2,) low tube voltage, low contrast medium concentration, injection rate and volume combined with ATCM and IMR technology can significantly decrease radiation dose, iodine load and IDR while maintain the image quality in head and neck CTA examination. PMID- 29343027 TI - [Using creatinine reduction ratio as a predictor for delayed graft function of kindey transplant recipients from donor of cardiac death]. AB - Objective: To explore the relationship between creatinine reduction ratio (CRR) and delayed graft function among kidney transplant recipients from donor of cardiac death (DCD). To define the value of CRR to predict delayed graft function (DGF) in early post-transplant period. Method: 86 patients were included, who received renal transplantation from DCD during Jan 1(st) 2011 to Jun 30(th) 2016. We performed a retrospective study and collected creatinine data within 3 days post-operation and marked them with Cr1, Cr2 , Cr3, and then calculated creatinine reduction ratio day-2 (CRR 2) =(Cr1-Cr2)/Cr1*100% and creatinine reduction ratio day-3 (CRR 3)=[(Cr1-Cr2)/Cr1+ (Cr2-Cr3)/Cr2]/2*100%. Patients were divided into two groups by DGF or not. We compared the CRR differenc between DGF group and no DGF group, and drew the receiver operating characteristic curve (ROC curve) to find out the cut-off value to predict delayed graft function. Results: Among 86 patients, DGF appeared in 17 patients. The incidence of DGF was 19.8%. The CRR 2 of patients in no DGF group was (37.5+/-17.4)% while patients in DGF group was (2.0+/-24.8)% (P<0.001). The CRR 3 of patients in no DGF group was (32.5+/-13.1)%, while patients in DGF group was (6.8+/-17.1)% (P<0.001). Acorrding to ROC curve, when cut-off value of CRR 2 was defined as <20.7%, the predicted value of DGF was the best, sensitivity was 85.5%, specificity was 76.5%, and area under the curve was 0.876. In the same way, when CRR 3 was defined as <17.6%, sensitivity was 89.9%, specificity was 76.5%, area under the curve was 0.872. Conclusion: It is reliable to predict DGF by CRR during early post-operative period. CRR shows high sensitivity and specificity and it is simple. It could guide the adjustion of immunosuppressive regimen, prevent early rejection and improve prognosis. PMID- 29343028 TI - [Pathogenesis of piriformis syndrome: a magnetic resonance imaging-based comparison study]. AB - Objective: To assess the morphological parameters of the piriformis muscle through magnetic resonance imaging(MRI) so as to further elucidate the pathogenesis of piriformis syndrome (PS). Methods: From September 2015 to October 2016, 30 suspected PS patients and 30 normal controls were enrolled in this study from the Nanfang Hospital, Southern Medical University. The possible causative factors of the PS in the patients were obtained, and the PS patients were divided into subgroups according to the anatomic site of the tender regions. The parameters of the maximum thickness (cm), area (cm(2)) and the volume (cm(3)) of the piriformis muscle of both groups were measured by MRI and were statistically compared between the groups with the independent-sample t test so as to investigate the pathogenesis of injured sciatic nerve. Results: Twenty-six patients were verified with PS, unhealthy sitting postures presented in 16 patients (61.5%) and no trauma history was recorded in these patients. Fifteen cases (57.7%) with tenderness located at the suprapiriformis foramen region (SPF group, n=15), 11 patients (42.3%) with tenderness at the piriformis muscle (PM group, n=11). The thickness, area and volume of the pathological side piriformis muscle in the PM group were all significantly higher than the corresponding indexes in the control group[(2.24+/-0.46) vs (1.66+/-0.30) cm, (14.4+/-2.2) vs (8.8+/-2.1) cm(2,) (23.9+/-3.8) vs (15.2+/-2.6) cm(3,) respectively, t=4.699, 7.437, 8.291, all P<0.05]and were all higher remarkably than those in the SPF group[(1.62+/-0.20) cm, (8.7+/-1.6) cm(2,) (14.1+/-4.8) cm(3,) respectively, t=4.640, 7.631, 5.589, all P<0.05]. No significant difference was observed in the up-mentioned indexes between the SPF and the control group (t=-0.439, -0.102, 1.083, all P>0.05). Conclusions: Tender region at the buttock indicates the lesion site in the PS patients. The PS patients with tenderness at the suprapiriformis region might originate from another pathogenesis independent of piriformis muscle compression, the injury of the sciatic nerve or its branch maybe due to the indirect crush by the soft tissue of the suprapiriformis region under an unhealthy sitting posture. PMID- 29343029 TI - [microRNA targeted to chronic myeloid leukemia Bcr-Abl oncogene screen using deacetylase inhibitor]. AB - Objective: microRNA targeted to chronic myeloid leukemia Bcr-Abl oncogene were screened using the deacetylase inhibitor suberoylanilide hydroxamic acid (SAHA). Methods: The proliferation inhibition effect of SAHA on chronic myeloid leukemia K562 cell was detected by MTS method, and the optimal concentration of SAHA reaction was determined. Western blot was used to detect the level of PARP protein, and making sure whether SAHA induced apoptosis of K562 cell. Effect of SAHA on Bcr-Abl Gene Transcription in K562 Cells was determined by Fluorescence Quantitative PCR. The online software Target Scan and real-time fluorescence quantitative PCR was used to screen Bcr-Abl-targeted microRNA. The viability of K562 cells and Bcr-Abl transcription levels were detected by MTS method and quantitative PCR respectively after selected microRNA were transfected into K562 cell. Results: SAHA significantly inhibited the proliferation of K562 cells and induced apoptosis, meanwhile SAHA significantly down-regulated the transcriptional level of Bcr-Abl gene. After treatment of K562 cells with SAHA, two microRNA, miR-192 and miR-6816, which could target Bcr-Abl, were screened by Target Scan and quantitative PCR. Additionally, SAHA induced the miRNAs to up regulate 14.5 and 5.2 times, respectively. Transfection of miR-192 and miR-6816 to K562 cells significantly inhibited K562 cell viability and down-regulated the transcriptional level of Bcr-Abl gene. Conclusion: Acetylation inhibitor SAHA promoted the expression of miR-192 and miR-6816 in K562 cells by acetylation regulation, miR-192 and miR-6816 further down-regulated the transcription of Bcr Abl gene, thereby inhibiting K562 cell proliferation and induced apoptosis. PMID- 29343031 TI - [Controversy over anticoagulation in patients with pulmonary arterial]. PMID- 29343030 TI - [Expression of high-mobility group box-I and N-methyl-D-aspartate receptor in status epilepticus]. AB - Objective: To investigate the expression changes of high mobility group box-1 (HMGB1) and the 2B receptor of N- methyl -D- aspartate receptor (NR2B) in status epilepticus (SE). Methods: (1) Primary hippocampal neurons from SD rats with 16 to 18 days of fetal age were cultured in vitro for 7 days, and exposed to Mg(2+) free media for 3 hours. Those cultured neurons were randomly divided into control group and intermittent hypoxia group. (2) SD rats with similar weight were selected and randomly divided into control group and SE model group. The rat model with SE was established by an intraperitoneal injection of lithium chloride piloearpine (LI-PILO). Real-time PCR technique was used to detect the expression of HMGB1 and NR2B mRNA. Results: In Sombati's cell model cultured in normal concentration of oxygen, the HMGB1 mRNA expression levels were 0.005 01+/-0.000 54, 0.026 76+/-0.003 75, 0.003 52+/-0.000 33, and the NR2B mRNA expression levels were 0.008 84+/-0.000 69, 0.012 23+/-0.000 90, 0.029 11+/-0.000 71, respectively, at 2, 4 and 6 h; compared with the expressions of HMGB1 and NR2B mRNA at the same time points of Sombatis cell model groups, the differences were also significant (all P<0.05). After the successful establishment of epilepsy model, the HMGB1 mRNA expression levels were 0.000 11+/-0.000 09, 0.000 18+/-0.000 01, 0.000 11+/ 0.000 01, and the NR2B mRNA expression levels were 0.196 12+/-0.009 41, 0.232 11+/-0.006 27, 0.272 48+/-0.005 84, respectively, at 6, 8 and 10 h; compared with the expressions of HMGB1 and NR2B mRNA at the same time points of control groups, the differences were all significant (all P<0.05). Conclusion: HMGB1 mRNA expression levels increase at 2, 4 h, decrease at 6 h in the Sombati's cell model in normal oxygen culture, while increase at 6, 8 h, and decrease at 10 h in LI PILO induced rat model with SE; the NR2B mRNA relative expression increases with time in both the Sombati's cell model in normal oxygen culture and rat model of SE. PMID- 29343032 TI - [Incidence and short-term outcomes of acute kidney injury in very elderly patients]. AB - Objectives: To study the incidence, clinical characteristics, and prognostic impact of acute kidney injury (AKI) in very elderly patients. Methods: The very elderly patients (>=75 years) from the Geriatric Department of the Chinese PLA General Hospital between January 2007 and December 2015 were retrospectively enrolled. AKI was defined according to the 2012 Kidney Disease Improving Global Outcomes (KDIGO) criteria. AKI patients were divided into survivor group and non survivor group by their outcomes within 90 days after AKI. Prognostic survival factors were identified using the Cox proportional hazards regression model. Results: In total, 668 geriatric patients (39.0%) developed AKI, and 652 patients were included in the final analysis. The median age of the cohort was 87 (84-91) years, the majority (623 cases, 95.6%) of whom were male. Among these 652 patients, 308 (47.2%) had AKI stage 1, 164 (25.2%) had AKI stage 2, and 180 (27.6%) had AKI stage 3. Of the 652 AKI patients, the 90-day mortality was 33.6% (219/652). Multivariate analysis by the Cox model revealed that persistent AKI (HR=5.741, 95% CI: 3.356-9.822, P<0.001), more severe AKI stage (stage 2: HR=3.363, 95% CI: 1.973-5.732, P<0.001 and stage 3: HR=4.741, 95% CI: 2.807 8.008, P<0.001), high blood urea nitrogen (BUN) level (HR=1.025, 95% CI: 1.014 1.037, P<0.001), low body mass index (HR=0.939, 95% CI: 0.897-0.984, P=0.008), low mean arterial pressure (MAP) (HR=0.969, 95% CI: 0.959-0.979, P<0.001), low prealbumin level (HR=0.935, 95% CI: 0.911-0.959, P<0.001), infection (HR=1.410, 95% CI: 1.055-1.884, P=0.020), oliguria (HR=1.948, 95% CI: 1.266-2.998, P=0.002) were associated with 90-day mortality. Conclusions: The incidence of AKI increases significantly with advanced age. More frequent serum creatinine (SCr) measurements may be helpful for the early diagnosis of geriatric AKI. Identification of risk factors might promote more intensive monitoring and early prevention, and thus improve outcomes for very elderly patients with AKI. PMID- 29343033 TI - [Clinical features and prognosis of 18 cases of primary lymphocytic hypophysitis]. AB - Objective: To analyze clinical features, prognosis and treatment of lymphocytic hypophysitis (LYH). Methods: The clinical data, treatments and outcomes of 18 cases diagnosed as LYH at Chinese PLA General Hospital between January 2001 and July 2017 was respectively reviewed. Results: Eighteen patients with histology proven LYH (13 females and 5 males ) were identified. All lymphocytic adenohypophysitis (LAH) were females(n=6), two of whom were associated with pregnancy. Eleven patients (6 females and 5 males) had lymphocytic panhypophysitis (LPH) and one(female) had hypothalamitis. Pre-treatment evaluation revealed that 11 patients presented with symptoms of intracranial space-occupying lesions, 12 patients had symptoms of anterior pituitary hormone deficiencies, and 12 patients had central diabetes insipidus (CDI). All patients had space-occupying lesions on magnetic resonance imaging (MRI), which were symmetrically enlarged and homogenously enhanced with or without pituitary stalk thickening. Before or after surgery, 11 patients received immunosuppressant therapy or radiotherapy to alleviate space-occupying effect. After 4-204 months follow-up, 5 patients had a relapse and received immunosuppressants, radiotherapy or surgery to achieve remission. Full recovery (both symptomatic and radiographic) was seen in 6 patients, and 11 patients maintained stable replacement therapy. Conclusions: LYH presents with acute space-occupying effects such as headache, visual disturbances, hypopituitarism, CDI and mild hyperprolactinemia, especially with characteristic radiographic manifestations. Usually, surgery reliably establishes diagnosis, and immunosuppressant therapy is a necessity. On the whole, LYH has a good prognosis. PMID- 29343034 TI - [A study on the effects and safety of sequential humidified high flow nasal cannula oxygenation therapy on the COPD patients after extubation]. AB - Objective: To investigate and compare the effect and safety of nasal high-flow oxygen therapy (HFNCO) and noninvasive ventilation (NIV) therapy after extubation in patients with chronic obstructive pulmonary disease (COPD). Methods: All COPD patients subjected to mechanical ventilation in the Emergency Intensive Unit of the First Affiliated Hospital of Zhejiang University during January 2015 to June 2016 were included in the study. The patients were divided into two groups after extubation and HFNCO and NIV were adopted on each group respectively. Clinical indexes including the patients' general condition, blood gas analysis and pulmonary function before and after extubation, ratio of re-intubation and CT grades were collected and analyzed. Results: There was no significant difference in the incidence of aspiration (4.8% vs 8.3%), pressure sores (0 vs 8.3%) and delirium (4.8% vs 12.5%) between the two groups (all P>0.05). At 12 h after extubation, the oxygenation index of NIV group was significantly higher than that of the HFNCO group (265+/-29 vs 297+/-33; P<0.05), while no significant difference in PCO(2) (P>0.05). For 24 h and 72 h after extubation, there was no statistically significant difference in oxygenation index and PCO(2) between the both groups (P>0.05). The intensive care unit (ICU) retention time in HFNCO group was significantly lower than that in NIV group (13.7+/-0.8 vs 15.2+/-0.5; P<0.05). In addition, no significant difference between the two groups in mortality and re-intubation rate at 28 d (P>0.05) was observed. Conclusion: HFNCO is effective and safe in the treatment of COPD patients after extubation, and it is hence valuable for further clinical application. PMID- 29343035 TI - [Comparison of percutaneous endoscopic lumbar discectomy versus transforaminal lumbar interbody fusion in treating upper lumbar disc herniation]. AB - Objective: To compare the efficacy of percutaneous endoscopic transforaminal discectomy (PTED) and transforaminal lumbar interbody fusion (TLIF) in the treatment of high lumbar disc herniation. Methods: The clinical data of patients with high lumbar disc herniation from February 2010 to February 2015 were retrospective analyzed. According to the inclusion criteria, a total of 63 cases were enrolled, including PTED group 33 cases, TLIF group 30 cases. The improvement of the two groups before and after surgery was assessed by visual analogue scale (VAS) and Oswestry dysfunction index (ODI). The operative time, intraoperative blood loss, drainage volume at 48 h postoperatively, hospitalization time, number of fluoroscopy, complication, recurrence rate and postoperative recovery were compared between the two groups. The follow-up period was 12 to 33 months. Results: The operation time, intraoperative blood loss, drainage amount and hospitalization time in PTED group were significantly less than those in TLIF group[(71+/-19) vs (121+/-22) min, (30+/-21) vs (317+/-50) ml, 0 vs (93+/-29) ml, (3.5+/-1.9) vs (12.5+/-2.1) d]. The number of fluoroscopy in PTED group was significantly higher than TLIF group[(16.2+/-8.3) vs (6.7+/ 4.2)](all P<0.05). There was no significant difference in VAS score and ODI improvement rate between the two groups after operation (both P>0.05). There was no significant difference between the two groups in the excellent rate of surgery and the recurrence rate (both P>0.05). Conclusions: PTED has the advantages of less trauma and bleeding, rapid postoperative recovery in the treatment of upper lumbar disc herniation compared with TLIF, and the curative effect and recurrence rate are similar with TLIF. Therefore, PTED is an effective method for the treatment of upper lumbar disc herniation. PMID- 29343037 TI - [Mechanisms of fosfomycin resistance of extended-spectrum beta-lactamases producing Escherichia coli and Klebsiella pneumoniae]. AB - Objective: To study the in vitro activity of fosfomycin to extended-spectrum beta lactamases (ESBLs)-producing Escherichia coli and Klebsiella pneumoniae and to explore the mechanisms of fosfomycin resistance. Methods: A total of 1 052 ESBLs producing E. coli(ESBL-EC) and K. pneumoniae(ESBL-KP) isolates were collected from bloodstream infections of 28 hospitals of 22 provinces and municipalities, which were stored by our laboratory.Minimum inhibitory concentrations (MICs) of fosfomycin against these clinical isolates were determined by agar dilution methods according to the Clinical and Laboratory Standards Institute (CLSI)(2015). The genes related to fosfomycin resistance were confirmed by Polymerase Chain Reaction (PCR) and sequencing. Results: The susceptibility rates of ESBL-EC and ESBL-KP isolates to fosfomycin were 91.3% (818/896) and 91.7% (143/156), respectively. A total of 91 fosfomycin-non-susceptible isolates were detected, of which 73 (80.2%) isolates carried fosA3 genes.Amongst 18 fosA3 negative isolates, 16 isolates were detected to have chromosomal mutations or insertion inactivation, while the rest two isolates had not been detected any resistant mechanisms. Conclusions: Fosfomycin shows great in vitro antimicrobial activity to ESBL-EC and ESBL-KP. The primary mechanism of fosfomycin-non susceptible isolates is fosA3 gene.Chromosomal mutations may also involve in the fosfomycin resistance. PMID- 29343036 TI - [Analysis of genotype and hematological phenotype of 14 patients with coinheritance HKalphaalpha and South-East deletion thalassemia]. AB - Objective: To analyze the genotype-phenotype correlations among those thalassemia samples with the presence of -alpha(3.7,) --(SEA) and normal alpha(2) alleles on their alpha-globin gene clusters. Methods: Fourteen patients(including 1fetus, 4 males and 9 females, aged 0- 56 years old)who were suspected diagnosed by hematologic analysis and genetic testing among 16 080 participants in our laboratory since from August 2011 to August 2016, were enrolled. Complete blood cell count was performed on XE4000i automatic hemocyte analyzer. HbA0, HbF and HbA2 were tested by high performance liquid chromatography (HPLC). Gap-PCR was adopted to detect three common deletional thalassemia deletions. Reverse dot-blot (RDB) assay was applied for detecting 17 common beta-globin gene mutations and three common non-deletional alpha(2) gene mutations. Two-round nested PCR assay was established to detect the genotype of HKalphaalpha in alpha-thalassemia. Results: Fourteen cases were identified as HKalphaalpha/--(SEA) (14/16 080), including a pedigree and a rare case of HKalphaalpha/--(SEA) co-inheritance with IVS-II-654(C->T) heterozygote. In HKalphaalpha/--(SEA) thalassemia group, mean cell volume(MCV) was (69.54+/-5.92)fl, and mean cell hemoglobin(MCH) was(22.11+/ 2.22)pg and hemoglobin(Hb) was (117.64+/-18.14) g/L. Compared with normal group, MCV, MCH and Hb in HKalphaalpha/--(SEA) thalassemia group, was significantly decreased(P<0.05). There were no significant differences between alpha thalassemia control group(--(SEA) /alphaalpha) in most hematological parameters (P>0.05). Conclusion: The two-round nested PCR could effectively detect the HKalphaalpha/--(SEA) genotype. The hematologic characteristics changed significantly in HKalphaalpha/--(SEA) group compared with HbH thalassemia and normal group. The genotype and phenotype non-correlation in patients with alpha thalassemia should especially be causious to avoid a misdiagnosis of genetic tests, especially in prenatal diagnosis. PMID- 29343038 TI - [Diagnostic value of albumin-bilirubin grade combined with serum ammonia in cirrhosis with hepatic encephalopathy]. AB - Objective: To explore the value of albumin-bilirubin (ALBI) grade combined with serum ammonia in the diagnosis of cirrhosis with hepatic encephalopathy (HE). Methods: The serum level of total bilirubin(TBIL), albumin( ALB )and blood ammonia were detected in 139 patients including 73 cirrhosis patients without HE and 66 cirrhosis patients with HE from January 2015 to January 2017 in Beijing You'an Hospital, and the relationship between ALBI and blood ammonia value and Child grade and hepatic encephalopathy was analyzed. Results: The level of ALBI and blood ammonia were more and more higher with the increase of Child grade, the level of ALBI in Child A, B and C were -2.3+/-0.6, -1.7+/-0.5, -0.9+/-0.4, and there was a statistically significant(F=125.100, P<0.001). The blood ammonia concentration in Child A, B and C were(42.6+/-16.0), (56.1+/-31.2), (69.8+/-34.7) MUmol/L, and there was a statistically significant(F=7.400, P<0.001). The level of ALBI was higher with the increase of model for end-stage liver disease (MELD) grade, and there was a positive correlation(r=0.547, P<0.001). The ALBI value in the HE group was higher than the cirrhosis patients without HE((-1.1+/-0.5)vs( 1.6+/-0.7)), and the difference was statistically significant (t=5.244, P<0.001). Level of blood ammonia in the HE group was(83.6+/-39.5)MUmol/L, which was higher than the level of cirrhosis patients without HE(42.9+/-17.0)MUmol/L, and the difference was statistically significant (t=8.130, P<0.001) . When ALBI and blood ammonia were combined, the ROC curve area was 0.911, the sensitivity was 93.9%, the specificity was 93.2%. Conclusion: There is a significant diagnosis value and high clinical application when ALBI is combined with blood ammonia to diagnose HE . PMID- 29343039 TI - [Development of a Chinese nomogram based on muti-parametric magnetic resonance for predicting the probability of prostate cancer in patients after initial negative biopsy]. AB - Objective: To develop a predictive nomogram based on multi-parametric magnetic resonance imaging (mpMRI) information to identify men more likely to have a cancer diagnosed on repeat prostate biopsy. Methods: The clinical data of 237 patients who received repeat prostate biopsy after initial negative biopsy from Department of Urology of Peking University First Hospital between January 2001 and August 2016 was reviewed. Patient age, body mass index (BMI), serum total prostate-specific antigen (PSA), percent free PSA (f/t), prostate volume (PV), PSA density (PSAD), PSA velocity (PSAV), digital rectal examination (DRE), transrectal ultrasound (TRUS)and mpMRI results were included in the univariate and multivariate analysis. A nomogram was developed using selected variables and the area under the receiver operating characteristic (ROC) curve was calculated as a measure of discrimination. Results: A total of 76 patients (32.07%) had prostate cancer (PCa) detected on repeat biopsy. Based on univariate and multivariate logistic regression analysis, the patient age, PSA, PV, DRE and mpMRI results were independent predictors for the diagnosis of PCa on repeat biopsy. The current nomogram performed well (AUC=0.910) and showed excellent calibration. Conclusions: Multi-parametric magnetic resonance imaging combined with age, PSA, PV and DRE can predict the probability of PCa in patients with initial negative biopsy. The nomogram might help in decision-making for men with prior benign histology before the performance of repeat biopsy. PMID- 29343040 TI - [Effect of picroside II on the expression of mitochondrial VDAC1 after cerebral ischemia/reperfusion in rats]. AB - Objective: To explore the effect of picroside II on the expression of mitochondrial voltage-dependent anion channel 1 (VDAC1) in rats after cerebral ischemiareperfusion. Methods: A total of 70 Wistar rats models with middle cerebral artery occlusionreperfusion (MCAO/R) were randomly divided into the sham group, model group, picroside (Picr) group, ruthenium red (RuR) group, RuR+ Picr group, Spermine (Sper) group, Sper+ Picr group (n=10 per group). Modified neurological severity scale (mNSS) was used to evaluated the neurobehavioral function, the expression of reactive oxygen species (ROS) in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA), the morphology of brain tissues was observed by hematoxylin-eosin (HE) staining, the apoptotic cells were counted by terminal deoxynucleotidyl transferase dUTP nick end labeling assay (TUNEL), and the expressions of VDAC1 and endonuclease G (EndoG) were determined by immunohistochemical assay and Western blot. Results: Compared with the shame group, the mNSS scores (9.6+/-1.9), the expression of ROS[(47.6+/-2.7)U/ml], the apoptosis of neuron(23.8+/-2.8), and the expressions of VDAC1(0.94+/-0.06) and EndoG in cytoplasm (0.76+/-0.06) and nuclei(0.75+/-0.06)were enhanced in the model group (all P<0.05). The Picr group had obviously decreased mNSS scores (5.7+/-0.9), ROS expression[(35.6+/-2.2)U/ml], number of apoptotic cells (14.5+/ 2.1), VDAC1 (0.63+/-0.06) and EndoG in cytoplasm (0.34+/-0.05) and nuclei (0.31+/ 0.06)expressions compared to the model group (P<0.05). Conclusion: Picroside II could attenuate cerebral I/R injury by down-regulating the expression of VDAC1 and inhibiting the EndoG release from mitochondria into cytoplasm. PMID- 29343041 TI - Forgoing life-sustaining treatments in the ICU. To withhold or to withdraw: is that the question? AB - In the last decades, mortality from severe acute illnesses has considerably declined thanks to the advances in intensive care medicine. Meanwhile, critical care physicians realized that life-sustaining treatments (LST) may not be appropriate for every patient, and end-of-life care in the Intensive Care Unit (ICU) started to receive growing attention. Most deaths occurring in the ICU now follow a decision to forgo life-sustaining treatments (DFLST), which can be implemented either by withdrawing (WDLST) or withholding (WHLST) life-sustaining treatments. Despite the broad consensus about the equivalence of the two practices from an ethical point of view, the issue of the best option between WDLST and WHLST constantly gives rise to controversies in clinical practice. This review is not intended to take a stand for or against WDLST or WHLST. Based on available evidence, the definitions of the two practices are first presented. Secondly, the preferences of ICU physicians towards WDLST and WHLST are examined. Finally, some arguments are offered outlining pros and cons of WDLST and WHLST, stressing that the clinician's attention should focus on an early and thorough recognition of patients in need of a DFLST, rather than on the theoretical strength and weakness of the two practices. This approach will enable physicians to make informed decisions on how to implement the limitation of LSTs, considering the patients' clinical conditions and preferences, the circumstances and needs of their families. PMID- 29343042 TI - Harlequin syndrome as a rare complication after epidural anesthesia in an obstetric patient. PMID- 29343043 TI - Mandibular pain: an uncommon radiation for cervical facet joint syndrome. PMID- 29343044 TI - Bronchial blocker positioning: learning curve and confidence in its use. AB - BACKGROUND: Despite being simple and safe to use and cheap, EZ blocker (EZB) remains underused probably because it requires particular skills in recognizing airway and in using fiber-bronchoscopy to check the exact position of their cuffs. Thus, we planned an education training program on the use of EZB for novices in anesthesia and evaluated the number of procedures required for the acquisition of the skills of this technique. METHODS: The educational training program included three different phases as follows. The first phase included a lecture on the utility of one-lung ventilation in thoracic surgery, on the use of the fiber- bronchoscopy and on the characteristics of EZB. The second phase consisted in a practical teaching course performed on a manikin model to acquire the skills in EZB. The third phase was a clinical training where each participant performed a defined number in patients scheduled for thoracic surgery procedures. The acquisition of dexterity and satisfaction were then statistically valuated. RESULTS: The dexterity in placing EZB significantly increased after six attempts (P<0.1). Participants acquired skills in correcting position EZB after 15 attempts. Participants increased their level of confidence with EZB (score 5.7+/ 1.3) and were highly satisfied with the training received (score 5.8+/-1.6). CONCLUSIONS: EZB is a valid strategy for obtaining one lung ventilation. Thus, it should be included in the armamentarium of all anesthetists interested in the field of thoracic surgery. Our teaching course seems to be a valuable method to instill easily and speedily in training novices in anesthesia the skills in placing EZB. PMID- 29343045 TI - What kind of evidence are we looking for to justify the use of ECCO2R? PMID- 29343046 TI - The real role of the PEEP in operating room: pros & cons. PMID- 29343047 TI - Acute esophageal necrosis in critically ill patients: consider this possibility! PMID- 29343048 TI - Physiology, intervention, and outcome: three critical questions about cerebral tissue oxygen saturation monitoring. AB - The balance between cerebral tissue oxygen consumption and supply can be continuously assessed by cerebral tissue oxygen saturation (SctO2) monitor. A construct consisting of three sequential questions, targeting the physiology monitored, the intervention implemented, and the outcomes affected, is proposed to critically appraise this monitor. The impact of the SctO2-guided care on patient outcome was examined through a systematic literature search and meta analysis. We concluded that the physiology monitored by SctO2 is robust and dynamic, fragile (prone to derangement), and adversely consequential when deranged. The inter-individual variability of SctO2 measurement advocates for an intervention threshold based on a relative, not absolute, change. The intra individual variability has multiple determinants which is the foundation of intervention. A variety of therapeutic options are available; however, none are 100% efficacious in treating cerebral dys-oxygenation. The therapeutic efficacy likely depends on both an appropriate differential diagnosis and the functional status of the regulatory mechanisms of cerebral blood flow. Meta-analysis based on five randomized controlled trials suggested a reduced incidence of early postoperative cognitive decline after major surgeries (RR= 0.53; 95% CI: 0.33 0.87; I2 =82%; P=0.01). However, its effects on other neurocognitive outcomes remain unclear. These results need to be interpreted with caution due to the high risks of bias. Quality RCTs based on improved intervention protocols and standardized outcome assessment are warranted in the future. PMID- 29343049 TI - The ultrasound-guided mid-point transverse process to pleura block for postoperative analgesia in video-assisted thoracoscopic surgery. PMID- 29343050 TI - Phantom limb pain successfully treated with scrambler therapy. PMID- 29343051 TI - Ketamine and remote hyperalgesia. PMID- 29343052 TI - Implications of oxygenation variations in ventilated patients with respiratory infections. PMID- 29343053 TI - Staphylococcus aureus producing Panton-Valentine Leukocidin: an emerging problem in Italian ICUs. PMID- 29343054 TI - Gender and sepsis: first step of personalized medicine? PMID- 29343055 TI - Genetically Encoded Circuit for Remote Regulation of Cell Migration by Magnetic Fields. AB - Magnetoreception can be generally defined as the ability to transduce the effects of a magnetic field into a cellular response. Magnetic stimulation at the cellular level is particularly attractive due to its ability for deep penetration and minimal invasiveness, allowing remote regulation of engineered biological processes. Previously, a magnetic-responsive genetic circuit was engineered using the transient receptor potential vanilloid 1 (TRPV1) and the iron containing ferritin protein (i.e., the TF circuit). In this study, we combined the TF circuit with a Ca2+ activated RhoA protein (CaRQ) to allow a magnetic field to remotely regulate cell migration. Cells expressing the TF circuit and CaRQ exhibited consistent dynamic protrusions, leading to migration along a porous membrane, directed spreading in response to a magnetic field gradient, as well as wound healing. This work offers a compelling interface for programmable electrical devices to control the migration of living systems for potential applications in cell-based therapy. PMID- 29343056 TI - A Phosphorescent Trinuclear Gold(I) Pyrazolate Chemosensor for Silver Ion Detection and Remediation in Aqueous Media. AB - We report a phosphorescent chemosensor based on a trinuclear Au(I) pyrazolate complex or [Au(3-CH3,5-COOH)Pz]3 (aka Au3Pz3) stabilized in aqueous chitosan (CS) polymer media. Au3Pz3 is synthesized in situ within aqueous CS media at pH ~ 6.5 and room temperature (RT). Au3Pz3 exhibits strong red emission (lambdamax ~ 690 nm) in such solutions. On addition of silver salt to Au3Pz3/CS aqueous media, a bright-green emissive adduct (Au3Pz3/Ag+) with a peak maximum within 475-515 nm is developed. The silver adduct exhibits a 4-fold increase in quantum yield (0.19 +/- 0.02) compared to Au3Pz3 alone (0.05 +/- 0.01), along with a corresponding increase in phosphorescence lifetime. With almost zero interference from 15 other metal ions tested, Au3Pz3 exhibits extreme selectivity for Ag+ with nM/ppb detection limits (6.4-72 ppb, depending on %CS and on the sensitivity basis being a signal-to-noise ratio (S/N) = 3 or a baseline-corrected signal change = 10%). Au3Pz3 exhibits sensitivity to higher concentrations (>1 mM) of other metal ions (Tl+/Pb2+/Gd3+). The sensing methodology is simple, fast, convenient, and can even be detected by the naked eye. On addition of ethylenediaminetetraacetic acid (EDTA), the red Au3Pz3 emission can be restored. Au3Pz3 and its silver adduct retain their characteristic photophysical properties in thin film forms. Remarkable photostability with <7% photobleaching after 4 h of UV irradiation is attained for Au3Pz3 solutions or thin films. PMID- 29343057 TI - Cu-T1 Sensor for Versatile Analysis. AB - Conventional magnetic sensors usually employ Fe-based magnetic materials as signal probes. In this work, we find that Cu(II) is also a useful longitudinal relaxation time (T1) signal-based magnetic probe. We adopt bathocuproinedisulfonic acid disodium salt hydrate (BCS) to chelate Cu(I) and form a stable Cu(I)-BCS complex in aqueous solution and find the significant difference in the T1 value of water protons between Cu(II) aqueous solution and Cu(I)-BCS complex aqueous solution. Redox reaction can convert Cu(II) to Cu(I) followed by the complexation of BCS, which results in apparent change of T1 that can serve as magnetic signal readout, which is the basis of this Cu-T1 sensor. Many redox reactions between Cu(II) and Cu(I) allow this Cu-T1 sensor to not only realize "one-step mode" assay such as ascorbic acid, protein, and alkaline phosphatase but also enable "multi-step mode" immunoassay, such as biomacromolecules and small molecules. This Cu-T1 sensor employs Cu ion as signal readout, providing an alternative tool for biochemical analysis. PMID- 29343058 TI - Biosynthesis of Long-Chain N-Acyl Amide by a Truncated Polyketide Synthase Nonribosomal Peptide Synthetase Hybrid Megasynthase in Fungi. AB - Truncated iterative polyketide synthase-nonribosomal peptide synthetase (PKS NRPS) megasynthases in which only the C domain is present are widespread in fungi, yet nearly all members have unknown functions. Bioinformatics analysis showed that the C domains of such PKS-C enzymes are noncanonical due to substitution at the second histidine in the active site HHxxxDG motif. Here, we used genome mining strategy to characterize a cryptic PKS-C hybrid from Talaromyces wortmanii and discovered the products are reduced long-chain polyketides amidated with a specific omega-amino acid 5-aminopentanoic acid (5PA). The wortmanamides resemble long-chain N-acyl-amide signaling lipids that target diverse receptors including GPCRs. The noncanonical C domain of this PKS-C hybrid was also demonstrated to be a bona fide condensation domain that specifically selects 5PA and catalyzes amidation to release polyketide chain. PMID- 29343059 TI - Top-Down Characterization of Heavily Modified Histones Using 193 nm Ultraviolet Photodissociation Mass Spectrometry. AB - The characterization of protein post-translational modifications (PTMs) remains a significant challenge for traditional bottom-up proteomics methods owing to the lability of PTMs and the difficulty of mapping combinatorial patterns of PTMs based on analysis of small peptides. These shortcomings have accelerated interest in top-down MS/MS methods that focus on analysis of intact proteins. Simultaneous mapping of all PTMs requires extensive sequence coverage to confidently localize modifications. 193 nm ultraviolet photodissociation (UVPD) has been shown to generate unparalleled sequence coverage for intact proteins compared to traditional MS/MS methods. This study focuses on identification and localization of PTMs of histones by UVPD, higher-energy collisional dissociation (HCD), and the hybrid method electron-transfer/higher-energy collision dissociation (EThcD) via a high throughput liquid chromatography-mass spectrometry strategy. In total, over 500 proteoforms were characterized among these three activation methods with 46% of the identifications found in common by two or more activation methods. EThcD and UVPD afforded more extensive characterization of proteoforms than HCD with average gains in sequence coverage of 15% and C-scores that doubled on average. PMID- 29343060 TI - Direct CO2 Addition to a Ni(0)-CO Species Allows the Selective Generation of a Nickel(II) Carboxylate with Expulsion of CO. AB - Addition of CO2 to a low-valent nickel species has been explored with a newly designed acriPNP pincer ligand (acriPNP- = 4,5-bis(diisopropylphosphino)-2,7,9,9 tetramethyl-9H-acridin-10-ide). This is a crucial step in understanding biological CO2 conversion to CO found in carbon monoxide dehydrogenase (CODH). A four-coordinate nickel(0) state was reliably accessed in the presence of a CO ligand, which can be prepared from a stepwise reduction of a cationic {(acriPNP)Ni(II)-CO}+ species. All three Ni(II), Ni(I), and Ni(0) monocarbonyl species were cleanly isolated and spectroscopically characterized. Addition of electrons to the nickel(II) species significantly alters its geometry from square planar toward tetrahedral because of the filling of the dx2-y2 orbital. Accordingly, the CO ligand position changes from equatorial to axial, ?N-Ni-C of 176.2(2) degrees to 129.1(4) degrees , allowing opening of a CO2 binding site. Upon addition of CO2 to a nickel(0)-CO species, a nickel(II) carboxylate species with a Ni(eta1-CO2-kappaC) moiety was formed and isolated (75%). This reaction occurs with the concomitant expulsion of CO(g). This is a unique result markedly different from our previous report involving the flexible analogous PNP ligand, which revealed the formation of multiple products including a tetrameric cluster from the reaction with CO2. Finally, the carbon dioxide conversion to CO at a single nickel center is modeled by the successful isolation of all relevant intermediates, such as Ni-CO2, Ni-COOH, and Ni-CO. PMID- 29343061 TI - Analyzing and Tuning Ribozyme Activity by Deep Sequencing To Modulate Gene Expression Level in Mammalian Cells. AB - Self-cleaving ribozymes, in combination with aptamers and various classes of RNAs, have been heavily engineered to create RNA devices to control gene expression. Although understanding of sequence-function relationships of ribozymes is critical for such efforts, our current knowledge of self-cleaving ribozymes is mostly limited to the results from small scale mutational studies performed under different conditions, or qualitative results of mutate-and-select experiments that may contain experimental biases. Here, we applied our strategy based on deep sequencing to comprehensively assay a large number of mutants to systematically examine the effect of the P4 stem sequence on the activity of an HDV-like ribozyme. We discovered that the ribozyme activity is highly sensitive to the sequence and the apparent stability of the varied positions. Furthermore, we demonstrated that the collection of the ribozyme variants with different activities can be used as a convenient device to fine-tune the level of gene expression in mammalian cells. PMID- 29343062 TI - Tailored Waveform of Dielectric Barrier Discharge to Control Composite Thin Film Morphology. AB - Nanocomposite thin films of TiO2 in a polymer-like matrix are grown in a filamentary argon (Ar) dielectric barrier discharge (DBD) from a suspension of TiO2 nanoparticles in isopropanol (IPA). The sinusoidal voltage producing the plasma is designed to independently control the matrix growth rate and the transport of nanoparticle (NP) aggregates to the surface. The useful FSK (frequency shift keying) modulation mode is chosen to successively generate two sinusoidal voltages: a high frequency of 15 kHz and a low frequency ranging from 0.5 to 3 kHz. The coating surface coverage by the NPs and the thickness of the matrix are measured as a function of the FSK parameters. The duty cycle between these two signals is varied from 0 to 100%. It is observed that the matrix thickness is mainly controlled by the power of the discharge, which largely depends on the high-frequency value. The quantity of NPs deposited in the composite thin film is proportional to the duration of the low frequency applied. The FSK waveform has a double modulation effect, allowing us to obtain a uniform coating as the NPs are not affected by the high frequency and the matrix growth rate is limited when the low frequency is applied. When it is close to a frequency limit, the low frequency acts like a filter for the NP aggregates. The higher the frequency, the smaller the size of the aggregates transferred to the surface. By changing only the FSK modulation parameters, the thin film can be switched from superhydrophobic to superhydrophilic, and under suitable conditions, a nanocomposite thin film is obtained. PMID- 29343063 TI - Why Does CuFeS2 Resemble Gold? AB - While several potential applications of CuFeS2 quantum dots have already been reported, doubts regarding their optical and physical properties persist. In particular, it is unclear if the quantum dot material is metallic, a degenerately doped semiconductor, or else an intrinsic semiconductor material. Here we examine the physical properties of CuFeS2 quantum dots in order to address this issue. Specifically, we study the bump that is observed in the optical spectra of these quantum dots at ~500 nm. Using a combination of structural and optical characterization methods, ultrafast spectroscopy, as well as electronic structure calculations, we ascertain that the unusual purple color of CuFeS2 quantum dots as well the golden luster of CuFeS2 films arise from the existence of a plasmon resonance in these materials. While the presence of free carriers causes this material to resemble gold, surface treatments are also described to suppress the plasmon resonance altogether. PMID- 29343064 TI - Generalized Theory for the Timescale of Molecular Electronic Decoherence in the Condensed Phase. AB - We introduce a general theory of electronic decoherence for molecules in the condensed phase that captures contributions coming from pure dephasing effects, electronic transitions among diabatic states, and their interference. The theory is constructed by taking advantage of a recently developed [ J. Phys. Chem. Lett. 2017 , 8 , 4289 - 4294 ] general expression for decoherence times that is based on an early time expansion of the purity dynamics and extends early electronic decoherence models based on pure dephasing ideas. Using this theory, we construct the decoherence time for the displaced harmonic oscillator model amended with constant and linear diabatic couplings, which is a widely used model of the photoexcited dynamics of molecules. The validity of the short-time expansion is demonstrated by the quantitative agreement of the theory with exact numerical computations of the decoherence dynamics obtained using the hierarchical equation of motion method. These developments offer a rigorous understanding of early time electronic decoherence processes that accompany basic molecular events and demonstrate that electronic transitions among diabatic states play a major role in the decoherence dynamics. PMID- 29343065 TI - Perfect Adaptation and Optimal Equilibrium Productivity in a Simple Microbial Biofuel Metabolic Pathway Using Dynamic Integral Control. AB - The production of complex biomolecules by genetically engineered organisms is one of the most promising applications of metabolic engineering and synthetic biology. To obtain processes with high productivity, it is therefore crucial to design and implement efficient dynamic in vivo regulation strategies. We consider here the microbial biofuel production model of Dunlop et al. (2010) for which we demonstrate that an antithetic dynamic integral control strategy can achieve robust perfect adaptation for the intracellular biofuel concentration in the presence of poorly known network parameters and implementation errors in certain rate parameters of the controller. We also show that the maximum equilibrium extracellular biofuel productivity is fully defined by some of the network parameters and, in this respect, it can only be achieved when all the corresponding parameters are perfectly known. Since this optimum is a network property, it cannot be improved by the use of any controller that measures the intracellular biofuel concentration and acts on the production of pump proteins. Additional intrinsic fundamental properties for the process are also unveiled, the most important ones being the existence of a conservation relation between the productivity and the toxicity, a low sensitivity of the optimal productivity with respect to a poor implementation of the set-point for the intracellular biofuel, and a strong intrinsic robustness property of the optimal productivity with respect to poorly known parameters. Taken together, these results demonstrate that a high and robust equilibrium rate of production for the extracellular biofuel can be achieved when the parameters of the model are poorly known and those of the controllers are poorly implemented. Finally, several advantages of the proposed dynamic strategy over a static one are also emphasized. PMID- 29343066 TI - Kane Fermion in a Two-Dimensional pi-Conjugated Bis(iminothiolato)nickel Monolayer. AB - Massless Kane fermions revealed in zinc-blende semiconductors have recently gained interest in the broad study of relativistic materials. In particular, two dimensional (2D) Kane fermions were expected to be hybrids of pseudospin-1 and 1/2 Dirac fermions. Based on first-principles calculations, we demonstrated that 2D Kane fermions can be realized in a recently synthesized metal-organic framework, namely, bis(iminothiolato)nickel monolayer. A slight compression takes the system from a semimetal to a semiconductor. At the critical strain of ~1%, the upper and lower conical bands linearize and touch at a single point intersecting a flat band, showing the same dispersion as the pseudospin-1 Dirac Weyl systems. We adopted a tight-binding Hamiltonian of a line-centered honeycomb lattice to reveal the origins and topology of the electronic band structure. The coexistence of Kane-type and Dirac-type spectra in the bis(iminothiolato)nickel monolayer is expected to benefit the study of multi quasiparticle effects. PMID- 29343068 TI - Spotlights: Volume 9, Issue 2. PMID- 29343067 TI - Practical Efficiency Limit of Methylammonium Lead Iodide Perovskite (CH3NH3PbI3) Solar Cells. PMID- 29343069 TI - At the Cutting Edge of Surface Science: A Tribute to Miquel B. Salmeron. PMID- 29343070 TI - Autobiography of Miquel B. Salmeron. PMID- 29343071 TI - Selected Publications of Miquel B. Salmeron. PMID- 29343072 TI - Colleagues of Miquel B. Salmeron. PMID- 29343073 TI - Human Semen or Seminal Plasma Does Not Enhance HIV-1BaL Ex Vivo Infection of Human Colonic Explants. AB - To determine whether human whole semen (WS) and seminal plasma (SP) either previously frozen or freshly acquired altered ex vivo infectibility of human colonic explants or was associated with histology or toxicity changes, which may influence mucosal HIV-1 transmission in vivo. Pooled human semen samples were freshly obtained from study volunteers (never frozen) and from commercial sources (frozen/thawed). Endoscopically acquired rectal biopsies were evaluated for toxicity following titered ex vivo WS/SP exposure by histological grading and by MTT assay. The ex vivo HIV-1 biopsy challenge model was used to evaluate effects of exposure to either previously frozen or freshly acquired WS/SP on HIVBaL infectibility at a range of viral inocula (104-100 TCID50). To evaluate the effects at lower viral inocula of HIV-1 (10-2-102), experiments in the presence or absence of WS/SP were also performed utilizing TZM-bl cells. MTT assays and histological scoring demonstrated no tissue degradation of biopsies when exposed for 2 h to concentrations of 10% or 100% of either fresh or previously frozen WS/SP. Ex vivo biopsy HIV-1 challenge experiments showed no differences in the presence of freshly acquired or previously frozen/thawed WS/SP compared with control; no differences were seen with lower infectious titers on TZM-bl cells. Within the limits of assay sensitivity and variability, these data show no toxicity or significant enhancement of HIV-1 infectibility of human rectal mucosa using the colorectal explant model with either pooled fresh or frozen/thawed nonautologous human semen. PMID- 29343074 TI - Understanding the influence of antipsychotic drugs on global methylation events and its relevance in treatment response. AB - AIM: The present study intends to evaluate whether antipsychotic drugs can modulate the host epigenome and if so whether drug-induced epigenetic modulation can explain the heterogeneity in drug response. METHODS: Present study was conducted in in vitro cells and significance of these in vitro observations was further evaluated in a clinical setting, between drug responsive and nonresponsive schizophrenia patients. A number of DNA modifications were assessed at global level using 5-methylcytosine, 5-hydroxymethylcytosine and 5 formylcytosine followed by evaluating the expression of epigenetic modifier genes and their crosstalk with miRNAs. RESULTS: In vitro data demonstrated that antipsychotic drugs induce epigenetic response by downregulating miRNA that target DNA methyltransferases, resulting in global hypermethylation. Similar trend was observed in clinical setting too and alterations were markedly associated with drug response rather than disease pathogenesis. CONCLUSION: Study demonstrates that antipsychotic drugs can influence host methylome and thereby indicating its role in mediating a strong pharmacoepigenomic response. PMID- 29343076 TI - High Loading Dose of Atorvastatin for the Prevention of Serum Creatinine and Cystatin C-Based Contrast-Induced Nephropathy Following Percutaneous Coronary Intervention. AB - The aim of this study is to assess the efficacy of high-dose atorvastatin on the prevention of contrast-induced nephropathy (CIN) in patients with acute coronary syndrome (ACS) undergoing percutaneous intervention and observe the incidence of cystatin C (CyC)-based CIN. A total of 496 patients with ACS were randomly assigned to either the control group (247 patients receiving conventional dose atorvastatin 10 mg daily from 1 day before to 3 days after contrast administration) or the high-dose atorvastatin group (249 patients receiving atorvastatin 40 mg daily for the same perioperative period). The baseline characteristics of the 2 groups were similar. The primary end point of serum creatinine (SCr)-based CIN occurred in 31 patients in the control group and 16 patients in the high-dose atorvastatin group (12.6% vs 6.4%; P = .02). Cystatin C based CIN developed in 90 patients in the control group and 46 patients in the high-dose atorvastatin group (36.4% vs 18.5%; P < .001). A multivariable analysis revealed that high-dose atorvastatin was independently associated with a decreased risk of CIN. Our study demonstrated that prophylactic treatment with high-dose atorvastatin reduced the risk of both SCr and CyC-based CIN and suggested that CyC was a more reliable marker for early diagnosis of CIN compared with SCr. PMID- 29343075 TI - Tocilizumab in Giant Cell Arteritis: A Real-Life Retrospective Study. AB - This study aims to evaluate (1) the efficacy and safety of tocilizumab (TCZ) as a steroid-sparing agent in patients with giant cell arteritis (GCA) and (2) the usefulness of 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) in the follow-up and to detect disease activity. We retrospectively evaluated 12 patients with GCA treated with TCZ (8 mg/kg/mo). Pre- and posttherapy data about clinical signs and symptoms, laboratory results, FDG-PET imaging study, and the mean glucocorticoid (GC) dose were used to assess disease activity. Tocilizumab achieved complete disease remission in all patients. Mean FDG-PET-detected standard uptake value decreased from 2.05 +/- 0.64 to 1.78 +/- 0.45 ( P = .005). In 2 patients in whom temporal arteries color Doppler sonography examination was consistent with temporal arteritis, the hypoechoic halo disappeared after TCZ treatment. Mean GC dose was tapered from 26.6 +/- 13.4 mg/d to 3.3 +/- 3.1 mg/d ( P < .0001). One-half of the patients discontinued GC therapy. Three patients experienced severe adverse reactions and had to stop TCZ therapy. In accordance with previous reports, TCZ is an effective steroid-sparing agent for GCA, although careful monitoring of adverse drug reactions is needed. 18F fluorodeoxyglucose positron emission tomography could be used to monitor disease activity in TCZ-treated patients, but prospective studies are needed to confirm these data. PMID- 29343077 TI - Delayed Onset of Sleep in Adolescents With PAX6 Haploinsufficiency. AB - OBJECTIVE: PAX6 haploinsufficiency ( +/-) can occur due to mutations involving only PAX6 in patients with isolated aniridia or as contiguous gene deletions in patients with Wilms tumor, aniridia, genitourinary anomalies, and range of developmental and intellectual disabilities syndrome. Given the role of PAX6 in pineal development and circadian regulation, adolescents with PAX6+/- may experience sleep-wake disturbances. The purpose of this observational study was to explore sleep-related phenotypes in adolescents with PAX6+/-. METHODS: This study compared sleep phenotypes of nine subjects with PAX6+/- (aged 10-19 years) with previously published data on healthy adolescents ( n = 25, aged 10-18 years). Subjects completed the Cleveland Adolescent Sleepiness Questionnaire (CASQ), Patient Reported Outcomes Measurement Information System (PROMIS) Sleep Disturbance (v. 1.0; 8a), and PROMIS Sleep-Related Impairment (v. 1.0; 8b) Questionnaires and wore actigraphs for seven nights to record sleep patterns. RESULTS: Total CASQ, PROMIS sleep-related impairment, and PROMIS sleep disturbance scores were not statistically different between the groups ( ps > .15). Actigraph data for lights off to sleep-onset time were found to be significantly higher in subjects with PAX6+/- versus the healthy comparison group (adjusted mean [95% confidence interval]: 20.1 min [8.1, 49.8] vs. 6.2 min [3.7, 10.4], respectively, p = .04). CONCLUSION: Both adolescents with PAX6+/- and the healthy comparison group on average slept less than 8 hr/night, and overall sleep deprivation in adolescents may have masked differences between groups. This study used rare genetic disorders with biological vulnerability to sleep problems as a genotype-phenotype model. Knowledge of sleep-related phenotypes will assist in designing studies to manage sleep-related symptoms in adolescents. PMID- 29343078 TI - Quality of life among HIV-infected individuals failing first-line antiretroviral therapy in resource-limited settings. AB - We evaluated health-related quality of life (QoL) in HIV infection participants with virologic failure (VF) on first-line antiretroviral therapy (ART) in 9 resource-limited settings (RLS). ACTG SF-21 was completed by 512 participants at A5273 study entry; 8 domains assessed: general health perceptions (GHP), physical functioning (PF), role functioning (RF), social functioning (SF), cognitive functioning (CF), pain (P), mental health (MH), and energy/fatigue (E/F); each was scored between 0 (worst) to 100 (best). Mean QoL scores ranged from 67 (GHP) to 91 (PF, SF, CF). QoL varied by country; high VL and low CD4 were associated with worse QoL in most domains, except RF (VL only), SF (CD4 only) and CF (neither). Number of comorbidities, BMI and history of AIDS were associated with some domains. Relationships between QoL and VL varied among countries for all domains. The association of worse disease status with worse QoL may reflect low QoL when ART was initiated and/or deterioration associated with VF. PMID- 29343079 TI - Cultural factors and oral health-related quality of life among dentate adults: Hispanic community health study/study of Latinos. AB - OBJECTIVE: Research on the relationships between acculturation, ethnic identity, and oral health-related quality of life (OHRQOL) among the U.S. Hispanic/Latino population is sparse. The aim of this study is to examine the association between acculturation, ethnic identity, and OHRQOL among 13,172 adults in the 2008-2011 Hispanic Community Health Study/Study of Latinos (HCHS/SOL). DESIGN: Participants self-reported their acculturation (immigrant generation, birthplace, residence in the U.S., language, and social acculturation), ethnic identity (sense of belonging and pride), and four OHRQOL measures. Key socio-demographic, behavioral, and oral health outcomes were tested as potential confounders. RESULTS: Overall, 57% of individuals experienced poor OHRQOL in at least one of the domains examined. In multivariable analyses, some elements of higher acculturation were associated with greater food restriction and difficulty doing usual jobs/attending school, but not associated with pain or difficulty chewing, tasting, or swallowing. While sense of belonging to one's ethnic group was not associated with poor OHRQOL, low sense of pride was associated with food restriction. Socio-behavioral characteristics were significant effect modifiers. CONCLUSION: This study contributes to the understanding of the role of Hispanic/Latino's cultural factors in OHRQOL perception and can inform targeted strategies to improve OHRQOL in this diverse population. PMID- 29343080 TI - Voices from Australia- concerns about HIV associated neurocognitive disorder. AB - This study aimed to determine whether people living with HIV (PLHIV) are concerned about HIV associated neurocognitive disorder (HAND) and would find information and resources for HAND beneficial. An online survey focusing on the experience of HAND was distributed via the website of Positive Life New South Wales: a peak peer-support non-government organization in Australia. Of 126 respondents, 94 (74%) had heard of HAND, 52/94 (55%) had experienced concerns and of these, 48/52 (92%) felt anxiety about discussing the subject. Of those who had experienced concerns, 30/52 (58%) had spoken to someone about these concerns and 23/30 (77%) had received a positive response. Across the entire sample, 74 (59%) had noticed symptoms of cognitive decline in themselves and/or others. Respondents who noted a decrease in their ability to organize were on average five years older than those who had not noticed a decline (p = 0.012, effect size -.54). Forty-nine (39%) indicated that they would like guidance to initiate discussion about HAND with their doctor, caregiver or other PLHIV. The survey findings suggest that increasing awareness of HAND among PLHIV and their caregivers, and providing resources to facilitate discussion about HAND may assist to reduce concerns among PLHIV and enhance the effectiveness of clinical review. PMID- 29343081 TI - Atorvastatin Reduces Plasma Inflammatory and Oxidant Biomarkers in Patients With Risk of Atherosclerotic Cardiovascular Disease. AB - BACKGROUND: Oxidative stress and inflammation are associated with endothelial injury and coronary artery disease. Inflammatory factors that promote oxidative damage include endothelin-1 (ET-1), myeloperoxidase (MPO), and C-reactive protein (CRP). Current guidelines recommend the use of statins in patients with risk of atherosclerotic cardiovascular disease (ASCVD). AIM: To assess the impact of atorvastatin on plasma inflammatory and oxidant biomarkers in patients with moderate to very high risk of ASCVD. METHOD: Two hundred ten patients presented to the cardiology clinic were included and stratified into low, moderate, high, and very high risk of ASCVD. Moderate- (20 mg/d) to high-intensity (40 mg/d) atorvastatin was prescribed. Plasma levels of lipids, ET-1, CRP, MPO, total nitrite, lipid peroxides (thiobarbituric acid reactive substances [TBARS]), and superoxide dismutase (SOD) activities were measured at baseline and 12 weeks after treatment. RESULT: Relative to low-risk patients, baseline plasma inflammatory markers of CRP, MPO, ET-1, and nitrite were higher in patients with very high risk of ASCVD, whereas plasma SOD was lower (all P < .05). Use of high and moderate atorvastatin therapy significantly reduced low-density lipoprotein and total cholesterol levels, as well as plasma levels of CRP, MPO, nitrite, and TBARS, and increased plasma SOD activity in patients with moderate to very high risk of ASCVD, independent of lipid-lowering effects. CONCLUSIONS: Key markers of oxidative stress/inflammation such as CRP, ET-1, total nitrite, and MPO are associated with an increased risk of ASCVD. Moderate- and high-intensity atorvastatin use reduces plasma oxidative stress and inflammation regardless of ASCVD risk and independent of its lipid-lowering effect. PMID- 29343082 TI - Systematic Review of the Effect of Adherence to Statin Treatment on Critical Cardiovascular Events and Mortality in Primary Prevention. AB - AIM: Analyze the relative risks of critical cardiovascular outcomes and mortality associated with adherence to statin treatment in a clinical setting in people with no history of prior cardiovascular disease (CVD). METHODS: A systematic review of the literature was conducted up to December 2016. The outcomes of interest were cardiovascular fatal or nonfatal events and all-cause mortality. RESULTS: A total of 17 articles were included in a qualitative synthesis. Four were case-control nested in a retrospective cohort design and the other 11 were a cohort design. Seven studies compared the best adherer patients with the worst adherers. In the 3 studies (317 603 participants) that considered ischemic heart disease in this group, the pooled reduction in risk was 18% (95% confidence interval [CI]: 14%-22%, I2 = 0%); for the CVD outcome, 2 studies (131 477 participants) showed a pooled reduction in risk of 47% (95% CI: 36%-56%, I2 = 84.7%) with 1 included study showing a much larger reduction than the others; for the cerebrovascular event (CeVD) outcome, 2 studies (155 726 participants) showed a pooled reduction in risk of 26% (95% CI: 18%-34%, I2 = 0%); and for mortality, the reduction in risk was 49% (95% CI: 39%-57%, I2 = 62.4%). The other 4 studies (147 859 participants) compared the most adherent group with the rest. These showed a pooled risk reduction of CVD of 22% (95% CI: 6%-27%, I2 = 0). CONCLUSION: Adherence to statins treatment is shown as a key element for primary prevention, although these are observational data and the risk of bias from confounding cannot be ruled out. Standardization of measures of adherence to treatment would improve comparability between studies. Further research is warranted to design effective interventions to improve patients' adherence. PMID- 29343083 TI - Polarized macrophage subsets differentially express the drug efflux transporters MRP1 and BCRP, resulting in altered HIV production. AB - Introduction Macrophages play an important role in HIV, where they are a cellular reservoir. Macrophages are polarized into two phenotypes: pro-inflammatory M1 macrophages and anti-inflammatory M2 macrophages, which may have altered expression of drug efflux transporters, including BCRP and MRP1. These differences may result in subtherapeutic concentrations of antiretrovirals inside of macrophages and viral replication. Methods U937 and U1 cells were polarized to the M1 or M2 phenotype via IFN-gamma and LPS, or IL-4, IL-13, and LPS. Transporter expression was assessed via PCR and Western blotting, and transporter function was assessed via fluorescent dye assays. Transporter function was blocked with the inhibitors MK571 or KO143. Protein expression was confirmed in monocyte-derived macrophages. p24 production was assessed in U1 cells via enzyme linked immunosorbent assay. Results mRNA and protein analysis demonstrated higher expression of MRP1 in M1 macrophages, while BCRP expression was downregulated in M1 macrophages. Treatment with inhibitors of transporter function decreased the difference in intracellular fluorescence between polarized macrophages. Differences in protein expression, which were observed with U937 cells, were confirmed in monocyte-derived macrophages. M1, but not M2 cells treated with MK571, showed decreased p24 production, consistent with reported MRP1 transporter expression. Conclusions These results support our hypothesis that there is differential expression of MRP1 and BCRP on M1 and M2 polarized macrophages and suggests that these differences may result in altered intracellular concentrations of antiretrovirals in macrophages and alter viral production in these cells. Targeting these differences may be a strategy to decrease viral replication in HIV-infected individuals. PMID- 29343084 TI - The correlation analysis of miRNAs and target genes in metastasis of cervical squamous cell carcinoma. AB - AIM: This study was intended to identify the metastasis-related miRNAs and target genes in cervical squamous cell carcinoma. MATERIALS & METHODS: The mRNA and miRNA next-generation sequencing data were downloaded. Differential expression analysis was carried out, followed by target gene prediction of differentially expressed miRNAs. The biological function of differentially expressed genes was performed. Validation was carried out by survival analysis and qRT-PCR. RESULTS: N4BP3 were associated with the survival time of patients. Hsa-mir-451 and hsa-mir 486 were related to tumor differentiation stage. Validated expression of hsa-mir 24-2, hsa-mir-582, NOTCH1, PIP4K2B, DIP2B and IGFBP5 was consistent with the bioinformatics analysis. CONCLUSION: Alterations of miRNAs and target genes may be useful in understanding the metastasis mechanisms of cervical squamous cell carcinoma. PMID- 29343085 TI - A Lack of Systemic Absorption Following the Repeated Application of Topical Quetiapine in Healthy Adults. AB - In the absence of suitable oral or intravenous access for medication administration and when the intramuscular medications are undesirable, alternative routes for drug delivery may be considered. Antipsychotics administered via an inhaled, intranasal, rectal, or topical route have been described in the literature. Topically administered antipsychotics have been previously reported to produce negligible systemic absorption despite being used in clinical practice for nausea and behavioral symptoms associated with dementia. Additionally, the American Academy of Hospice and Palliative Medicine recommends against the use of topical medications that lack supporting literature. Three studies have assessed the systemic absorption of different antipsychotics after administration of only a single, topically applied dose. To evaluate whether the repeated administration of a topically applied antipsychotic may result in detectable serum levels in an accumulating fashion, a pharmacokinetic study was conducted. Five healthy, adult participants consented to receive extemporaneously prepared topical quetiapine in Lipoderm every 4 hours for a total of 5 doses. Blood samples were drawn at baseline and hours 2, 4, 8, 12, 16, and 24, and serum quetiapine concentrations were measured using high-performance liquid chromatography. Quetiapine was undetectable in every sample from 3 participants. Two participants had minimally detectable serum quetiapine levels no sooner than hour 12 of the study period. Extemporaneously prepared quetiapine in Lipoderm resulted in nonexistent or minimal serum level following repeated topical administration. The use of topically applied quetiapine should still be questioned. PMID- 29343086 TI - Percutaneous Nephrolithotomy and Spina Bifida: Complex Major Stone Surgery? AB - BACKGROUND: The incidence of spina bifida (SB) is ~1:1000, and risk of stone disease is substantially raised in SB. This is the unique published study of the outcome of patients with SB undergoing percutaneous nephrolithotomy (PCNL) compared to a neurologically intact historically matched control group at the same institution. PATIENTS AND METHOD: A series of 96 PCNLs in 13 SB and 50 non SB patients was analyzed. The following measurements were recorded: (1) Comorbidities; (2) Preoperative: (renal function, American Society of Anesthesiologists [ASA] score); (3) Intraoperative: (anesthesia time, number of tracks, stone-free rate); and (4) Postoperative: (sepsis, intensive therapy unit and total length of stay, transfusion rate, stone composition, rate of stone disease-related nephrectomy). RESULTS: Retrograde access to the ureter was impossible in all cases of SB. The median ASA grade (OR 10.5, 95% confidence interval [CI] 2.6-42.7) and operative time (median difference 30 minutes, 95% CI 20-40) were both higher in the SB cohort. Surgeon's estimate of stone-free rate was significantly lower in the SB cohort (46% vs 82%). Intensive care requirement (0.29 days/PCNL vs 0.1 days/PCNL); total hospital stay (7 days vs 4 days); postoperative transfusion rate (11.8% vs 1.6%); and sepsis rate (38% vs 1.6%) were all significantly higher in the SB group. Repeat PCNL and nephrectomy for recurrent stone disease were both significantly increased in SB cohort compared to control group. CONCLUSIONS: PCNL in patients with SB is associated with multiple parameters of poor outcome. Patients with SB should be counseled about increased peri-operative risk and likelihood of stone recurrence. In an era where hospitals are judged according to comparative outcomes, a case may be made for comparing PCNL in this cohort of patients separately because of the significantly increased peri- and postoperative morbidity. PMID- 29343087 TI - Sulfhydrated Sirtuin-1 Increasing Its Deacetylation Activity Is an Essential Epigenetics Mechanism of Anti-Atherogenesis by Hydrogen Sulfide. AB - AIMS: Hydrogen sulfide (H2S) has a protective role in the pathogenesis of atherosclerosis by multiple pathways. Sirtuin-1 (SIRT1) is a histone deacetylase, as an essential mediated longevity gene, and has an anti-atherogenic effect by regulating the acetylation of some functional proteins. Whether SIRT1 is involved in protecting H2S in atherosclerosis and its mechanism remains unclear. RESULTS: In ApoE-knockout atherosclerosis mice, treatment with an H2S donor (NaHS or GYY4137) reduced atherosclerotic plaque area, macrophage infiltration, aortic inflammation, and plasma lipid level. H2S treatment increased aorta and liver SIRT1 mRNA expression. Overexpression or slicing cystathionine gamma lyase (CSE) also changed intracellular SIRT1 expression. CSE/H2S treatment increased SIRT1 deacetylation in endothelium and hepatocytes and macrophages, then induced deacetylation of its target proteins (P53, P65, and sterol response element binding protein), thereby reducing endothelial and macrophage inflammation and inhibiting macrophage cholesterol uptake and cholesterol de novo synthesis of liver. Also, CSE/H2S induced SIRT1 sulfhydration at its two zinc finger domains, increased its zinc ion binding activity to stabilize the alpha-helix structure, lowered its ubiquitination, and reduced its degradation. INNOVATION: H2S is a novel SIRT1 activator by direct sulfhydration. Because SIRT1 has a role in longevity, H2S may be a protector for aging-related diseases. CONCLUSION: Endogenous CSE/H2S directly sulfhydrated SIRT1, enhanced SIRT1 binding to zinc ion, then promoted its deacetylation activity, and increased SIRT1 stability, thus reducing atherosclerotic plaque formation. Antioxid. Redox Signal. 00, 000 000. PMID- 29343088 TI - Creating and testing regulatory focus messages to enhance medication adherence. AB - Objectives Strategies were explored to improve patient adherence to cardioprotective medications by borrowing from a motivational framework used in psychology, regulatory focus theory. The current study is part of a larger randomized control trial and was aimed at understanding what written educational messages, based on patients' regulatory focus tendency, resonated with each individual as a potential reminder to take medications. This study was also aimed at understanding why messages resonated with the patients. Methods Twenty veterans were tested for regulatory fitand presented with messages dependent on focus tendency. In-person semi-structured interviews were conducted to collect feedback of messages. An iterative analysis drawing primarily on matrix and reflexive team analyses was conducted. Result Six promotion and six prevention messages emerged, such as "team up with your provider to create a combination of medications to prevent illness" and "Live your best life - Take your medications". Five themes related to types of health messages that spoke to patients' regulatory fit were discovered: relatability; empowerment and control; philosophy on life; relationship with provider and medications; and vocabulary effect on the impact of messages. Discussion Motivational messages based on regulatory fit may be useful in improving patient medication adherence, leading to improved cardiovascular outcomes. PMID- 29343089 TI - Peer characteristics associated with improved glycemic control in a randomized controlled trial of a reciprocal peer support program for diabetes. AB - Objective In a secondary analysis of a randomized controlled trial of diabetes reciprocal peer support, we examined characteristics of peers associated with improvements in their partner's glycemic control. Methods A total of 102 adults with diabetes were randomized to the reciprocal peer support arm (vs. a nurse care management arm). The primary outcome was change in A1c over six months. Intermediate outcomes were insulin initiation and peer engagement. A number of baseline characteristics of peers were hypothesized to influence outcomes for their peer, and concordant characteristics of peer dyads were hypothesized that would influence outcomes for both peer partners. Results Improvement in A1c was associated with having a peer older than oneself ( P < .05) or with higher diabetes-related distress ( P < .01). Participants with peers who reported poorer health at baseline had worse glycemic control at follow-up ( P < .01). Hypothesized concordant characteristics were not associated with A1c improvements. Participants whose peers had a more controlled self-regulation style were more likely to initiate insulin ( P < .05). Discussion The improved outcomes of peers whose partners were older and reported more diabetes distress at baseline supports the need for further research into the peer characteristics that lead to improved outcomes. This could allow for better matching and more effective partnerships. PMID- 29343090 TI - Identifying COPD patients at risk for worse symptoms, HRQoL, and self-efficacy: A cluster analysis. AB - Objectives To identify clusters of chronic obstructive pulmonary disease (COPD) patients with distinct beliefs about their illness in terms of symptoms, health related quality of life (HRQoL), self-efficacy, and daily life physical activity (DLPA). Methods This cross-sectional study included 150 COPD outpatients. The patients' illness perceptions, clinical control, HRQoL, self-efficacy, and DLPA (accelerometry) were evaluated. A cluster analysis was conducted using data from the Illness Perceptions Questionnaire - Revised to establish groups of patients with distinct illness perceptions. Differences between clusters were tested using a T-test or a Mann-Whitney U test. Results The cluster analysis revealed two groups: distressed ( n = 95) and coping ( n = 55). Despite the fact that both clusters presented similar pulmonary function, between-cluster differences were observed in their self-efficacy, dyspnea, HRQoL, clinical control ( p < 0.001), and educational level ( p = 0.002). The levels of DLPA did not differ between the clusters. Discussion We observed that clinically stable COPD patients who displayed higher emotional representations and less coherence had heightened symptoms, poorer HRQoL, worse self-efficacy, and lower educational levels. These results emphasize the need to routinely evaluate illness perceptions in COPD patients to target and tailor the proper treatment to improve these important health outcomes. PMID- 29343091 TI - Terminalia chebula supplementation attenuates cisplatin-induced nephrotoxicity in Wistar rats through modulation of apoptotic pathway. AB - In the present study, we have evaluated the nephroprotective effect of hydroalcoholic extract of Terminalia chebula in cisplatin-induced nephrotoxicity model. Standardised extract was orally administered to Wistar rats for 10 days at different doses. On day 7, 8 mg/kg of cisplatin was administered intra peritoneally to rats in all groups. T. chebula, in a dose-dependent manner significantly inhibited the elevation of serum creatinine, blood urea nitrogen and oxidant stress markers. The immunohistochemical analysis revealed the increased levels of apoptotic markers and cytokines in cisplatin group were significantly lowered by T. chebula extract. The cisplatin-treated rats kidney showed diffused tubular necrosis and infilteration of inflammatory cells which was reversed in the treatment group. Chemical characterisation of extract by HPLC revealed the presence of corilagin, chebulinic, chebulagic, chebulic, gallic and ellagic acid. The findings of this study discovered that T. chebula ameliorated oxidative and histological damage caused by cisplatin. PMID- 29343092 TI - Health Information at a Global Level: Working to Support the Information Paradox Countries. PMID- 29343093 TI - Nosology Work: One Step beyond the Medical Record Department. AB - This article discusses the role of the nosologist/health information management (HIM) professional in a venue one step beyond the hospital's medical record department. It provides a glimpse of the role of the HIM professional at a statistical government agency, the National Center for Health Statistics (NCHS) in the United States, and focuses primarily on the collaborative work that is performed by the HIM professional at NCHS. The challenges presented in survey coding will be discussed, while practical examples of how we have chosen to improve the data collection, data processing and data reporting processes will also be addressed. PMID- 29343094 TI - Improving Health Records in Developing Countries: The Suriname Experience. PMID- 29343095 TI - Health Information Management Practice in Sri Lanka. AB - Health information system development in Sri Lanka has generally been a low priority. Weaknesses exist in many areas, including vital registration, and hospital information such as inpatient and outpatient morbidity and mortality data. Lapses in hospital information systems are mainly due to incomplete patient medical records; non-availability, inaccuracy and illegibility of the final diagnoses on the front sheets; shortage of trained statistical staff; lack of supervision at all levels; and lack of facilities at medical record departments. WHO's South-East Asian Regional Organization, in collaboration with the Australian National Centre in Classification in Health, has developed a group of trainers who conduct MR/HIM and ICD-10 training courses within the country. PMID- 29343097 TI - Electronic Health Information Management: The Future is Ours to Embrace. PMID- 29343096 TI - Estonia's Health Information System and the Digital Health Record. PMID- 29343098 TI - Health Information Management Education Programs in Germany. PMID- 29343099 TI - Modelling the water-plant cuticular polymer matrix membrane partitioning of diverse chemicals in multiple plant species using the support vector machine based QSAR approach. AB - In this study, a support vector machine (SVM) based multi-species QSAR (quantitative structure-activity relationship) model was developed for predicting the water-plant cuticular polymer matrix membrane (MX) partition coefficient, KMXw of diverse chemicals using two simple molecular descriptors derived from the chemical structures and following the OECD guidelines. Accordingly, the Lycopersicon esculentum Mill. data were used to construct the QSAR model that was externally validated using three other plant species data. The diversity in chemical structures and end-points were verified using the Tanimoto similarity index and Kruskal-Wallis statistics. The predictive power of the developed QSAR model was tested through rigorous validation, deriving a wide series of statistical checks. The MLOGP was the most influential descriptor identified by the model. The model yielded a correlation (r2) of 0.966 and 0.965 in the training and test data arrays. The developed QSAR model also performed well in another three plant species (r2 > 0.955). The results suggest the appropriateness of the developed model to reliably predict the plant chemical interactions in multiple plant species and it can be a useful tool in screening the new chemical for environmental risk assessment. PMID- 29343100 TI - The Effect of an Orthopedic Hand Surgeon's Attire on Patient Confidence and Trust. AB - BACKGROUND: Multiple studies have concluded that patients are more likely to understand and trust physicians who dress in more formal attire (shirt and tie) as opposed to casual attire (t-shirts and jeans). The white coat has repeatedly been reported as a major source of trust and confidence in a patient's eyes. METHODS: This study explores the effect an orthopedic hand surgeon's attire has on a patient's perception of their surgeon's clinical values. All patients 18 years of age and older who visited our orthopedic hand surgeon's suburban outpatient practice were asked to participate in our survey-based study. RESULTS: Ninety-seven surveys were completed and included. A majority of our responders are female (n = 59, 60.8%), Caucasian (n = 83, 85.6%) between the ages of 55 and 74 years (n = 40, 41.2%), currently employed (n = 59, 60.8%) with private health insurance (n = 69, 71.1%), and married (n = 64, 66.0%). Patients rated male and female hand surgeons wearing a white coat highest using the Likert scale and when asked about their perceived clinical qualities. Patients consistently poorly rated their surgeons wearing casual attire. Patients did note that the white coat, or any specific attire, was not necessary during the initial encounter to build a strong patient-surgeon relationship. Finally, goatees and beards do not positively or negatively impact a surgeon's patient-constructed image. CONCLUSIONS: Combining strong clinical skills with appropriate clinical attire highlighted by the physician wearing a white coat appears to be an effective way to enhance patient satisfaction while ultimately gaining the trust and respect needed to properly care for patients. PMID- 29343102 TI - The Development of the Philippine Medical Records Association Inc. PMID- 29343103 TI - M-Health - Providing Excellence in Quality of Care through Wireless, Telehealth and Mobile Technology Integration: Report on the IQPC Conference, Sydney, 30-31 March 2004. PMID- 29343101 TI - MACON: a web tool for computing DNA methylation data obtained by the Illumina Infinium Human DNA methylation BeadArray. AB - AIM: Bioinformatics analysis for Illumina Infinium Human DNA methylation BeadArray is essential, but still remains difficult task for many experimental researchers. We here aimed to develop a browser-accessible bioinformatics tool for analyzing the BeadArray data. MATERIALS & METHODS: The tool was established as an analytical pipeline using R, Perl and Python programming languages. RESULTS: We introduced a method that groups neighboring probes into a genomic block, which facilitated efficient identification of densely methylated/unmethylated regions. The tool, MACON, provided probe filtering, beta mixture quantile normalization, grouping into genomic blocks, annotation and production of a data subset. CONCLUSION: MACON allows researchers to analyze the BeadArray data using a web browser ( http://epigenome.ncc.go.jp/macon ). PMID- 29343104 TI - What Do other Organisations Do about Continuing Professional Development? PMID- 29343105 TI - The Health IT Rollout: Supporting the End Users. PMID- 29343106 TI - Quality of Final Diagnosis Coding in the Medical Records of Selected Hospitals in the Colombo District, Sri Lanka. AB - Clinical coding is a method of translating a clinical description of a disease or procedure into a standard code. Sri Lanka adopted the system of coding recommended by the WHO, The International Classification of Diseases - 10th Revision (ICD-10), in 1997, and this study was undertaken with the objectives of assessing the quality of ICD coding and to identify some factors influencing coding quality in this country. A sample of 1091 medical records was selected from six hospitals in the Colombo District, representing all categories of hospitals in the area. Quality of coding was assessed by using the Australian Coding Benchmark Audit (ACBA), a coding quality assessment tool developed by the National Centre for Classification in Health, Australia. It was found that the availability of the final diagnosis on front sheets of medical records was satisfactory (94.7%), but the accuracy of the diagnostic statement was unsatisfactory (54%). Out of the six hospitals studied, only the Teaching Hospital and the Peripheral Unit practiced coding. The overall rate of accuracy of ICD coding in the Colombo District hospitals was 31%, which is unsatisfactory. It is recommended that training opportunities in ICD-10 and other related subjects should be made available to the coders. Efforts should be made to improve the familiarity of the Medical Officers with the WHO guidelines on recording diagnostic information for ICD coding. PMID- 29343107 TI - Clinical Coders and Decision Making. AB - Clinical coders operate at six identifiable levels, which can be described as beginner, trainee coder, entry, competent, accredited and advanced levels. In this article these levels are elaborated within the theoretical perspectives of Simon's four-stage and Wilson and Walsh's six-stage models of systematic decision making. The article then examines briefly the importance of understanding how clinical coders make decisions, because of both the coder's crucial role in determining hospital funding, and the reliance of research upon access to accurate data. Finally, future avenues for study in this area are suggested. PMID- 29343108 TI - Health Information Management: An International Focus. PMID- 29343109 TI - Preparing for the New Information Environment. PMID- 29343110 TI - Can the physical environment itself influence neurological patient activity? AB - PURPOSE: To evaluate if a changed physical environment following redesign of a hospital ward influenced neurological patient physical and social activity. METHODS: A "before and after" observational design was used that included 17 acute neurological patients pre-move (median age 77 (IQR 69-85) years Ward A and 20 post-move (median age 70 (IQR 57-81) years Ward B. Observations occurred for 1 day from 08.00-17.00 using Behavioral Mapping of patient physical and social activity, and location of that activity. Staff and ward policies remained unchanged throughout. An Environmental Description Checklist of each ward was also completed. RESULTS: Behavioral Mapping was conducted pre-/post-move with a total of 801 Ward A and 918 Ward B observations. Environmental Description Checklists showed similarities in design features in both neurological wards with similar numbers of de-centralized nursing stations, however there were more single rooms and varied locations to congregate in Ward B (30% more single patient rooms and separate allied health therapy room). Patients were alone >60% of time in both wards, although there was more in bed social activity in Ward A and more out of bed social activity in Ward B. There were low amounts of physical activity outside of patient rooms in both wards. Significantly more physical activity occurred in Ward B patient rooms (median = 47%, IQR 14-74%) compared to Ward A (median = 2% IQR 0-14%), Wilcoxon Rank Sum test z = -3.28, p = 0.001. CONCLUSIONS: Overall, patient social and physical activity was low, with little to no use of communal spaces. However we found more physical activity in patient rooms in the Ward B environment. Given the potential for patient activity to drive brain reorganization and repair, the physical environment should be considered an active factor in neurological rehabilitation and recovery. Implications for Rehabilitation Clinicians should include consideration of the impact of physical environment on physical and social activity of neurological patients when designing therapeutic rehabilitation environments. Despite architectural design intentions patient and social activity opportunities can be limited. Optimal neurological patient neuroplasticity and recovery requires sufficient environmental challenge, however current hospital environments for rehabilitation do not provide this. PMID- 29343111 TI - Getting the Most from Routinely Collected Data. PMID- 29343112 TI - Eight Methods for Improving Coding Quality and Efficiency. PMID- 29343113 TI - Ninth National Centre for Classification in Health Conference. 16-18 March 2005. Perth, Western Australia. PMID- 29343114 TI - Governance and Our Organisation. PMID- 29343115 TI - Health Informatics and Health Professionals. PMID- 29343116 TI - Challenges in Coding and Classification. PMID- 29343117 TI - 25th National Conference, Health Information Management Association of Australia. Geelong, July 2005. Conference Discharge Summary. PMID- 29343118 TI - Coding Rules! Ninth National Centre for Classification in Health Conference. 16 18 March 2005. Perth, Western Australia. PMID- 29343119 TI - Electronic Health Records: Security, Safety and Archiving. PMID- 29343120 TI - An update on the advancing high-throughput screening techniques for patch clamp based ion channel screens: implications for drug discovery. AB - INTRODUCTION: Automated patch clamp (APC) devices have become commonplace in many industrial and academic labs. Their ease-of-use and flexibility have ensured that users can perform routine screening experiments and complex kinetic experiments on the same device without the need for months of training and experience. APC devices are being developed to increase throughput and flexibility. Areas covered: Experimental options such as temperature control, internal solution exchange and current clamp have been available on some APC devices for some time, and are being introduced on other devices. A comprehensive review of the literature pertaining to these features for the Patchliner, QPatch and Qube and data for these features for the SyncroPatch 384/768PE, is given. In addition, novel features such as dynamic clamp on the Patchliner and light stimulation of action potentials using channelrhodosin-2 is discussed. Expert opinion: APC devices will continue to play an important role in drug discovery. The instruments will be continually developed to meet the needs of HTS laboratories and for basic research. The use of stem cells and recordings in current clamp mode will increase, as will the development of complex add-ons such as dynamic clamp and optical stimulation on high throughput devices. PMID- 29343121 TI - Health Data Standards Committee Meeting Report. PMID- 29343122 TI - Use of the Godin leisure-time exercise questionnaire in multiple sclerosis research: a comprehensive narrative review. AB - PURPOSE: The Godin Leisure-Time Exercise Questionnaire has been a commonly applied measure of physical activity in research among persons with multiple sclerosis over the past decade. This paper provides a comprehensive description of its application and inclusion in research on physical activity in multiple sclerosis. METHOD: This comprehensive, narrative review included papers that were published between 1985 and 2017, written in English, involved participants with multiple sclerosis as a primary population, measured physical activity, and cited one of the two original Godin papers. RESULTS AND CONCLUSION: There is a broad scope of research that has included the Godin Leisure-Time Exercise Questionnaire in persons with multiple sclerosis. Overall, 8 papers evaluated its psychometric properties, 21 evaluated patterns of physical activity, 24 evaluated correlates or determinants of physical activity, 28 evaluated outcomes or consequences of physical activity, and 15 evaluated physical activity interventions. The Godin Leisure-Time Exercise Questionnaire is a valid self-report measure of physical activity in persons with multiple sclerosis, and further is an appropriate, simple, and effective tool for describing patterns of physical activity, examining correlates and outcomes of physical activity, and provides a sensitive outcome for measuring change in physical activity after an intervention. Implications for rehabilitation There is increasing interest in physical activity and its benefits in multiple sclerosis. The study of physical activity requires appropriate and standardized measures. The Godin Leisure-Time Exercise Questionnaire is a common self-report measure of physical activity for persons with multiple sclerosis. Godin Leisure-Time Exercise Questionnaire scores are reliable measures of physical activity in persons with multiple sclerosis. The Godin Leisure-Time Exercise Questionnaire further is an appropriate, simple, and effective tool for describing patterns of physical activity, examining correlates and outcomes of physical activity participation, and is an advantageous primary outcome for measuring change in physical activity in response to an intervention. PMID- 29343124 TI - Health Information Management in Epidemiological Research. PMID- 29343123 TI - Ninth National Centre for Classification in Health Conference. 16-18 March 2005. Perth, Western Australia. PMID- 29343125 TI - The changing pattern and determinants of declining consanguinity in Jordan during 1990-2012. AB - BACKGROUND: Consanguinity is a deep rooted cultural trait in Jordan. AIM: To examine the patterns and determinants of declining rates of consanguineous marriage in Jordan during 1990-2012 in the context of the changing pattern of socio-economic and demographic conditions. MATERIALS AND METHODS: The data come from the 1990 and 2012 Jordan Population and Family Health Surveys (JPFHSs). A total of 6461 women in 1990 and 11,352 women in 2012 were successfully interviewed. Descriptive and multivariate statistical techniques were used for data analysis. RESULTS: Consanguinity was found to be widely practiced (35% in 2012) until recent times in Jordan. However, there has been a secular declining trend over the last few decades as the practice of consanguinity has declined from 56% in 1990 to 35% in 2012. Increasing age at marriage and female education, higher level of education of husbands, declining family size, increasing rate of urbanisation and female employment, exposure to mass media and higher economic status appeared as significant predictors of declining consanguinity in Jordan. CONCLUSIONS: The findings of this study support Goode's hypothesis of a decrease of consanguinity with modernisation. Although consanguinity is a deeply rooted cultural trend in Jordan, it is gradually losing ground due to modernisation and socio-demographic transition of the country. PMID- 29343126 TI - Challenges in Coding and Classification. PMID- 29343128 TI - Efficacy and safety of flexibly dosed brexpiprazole for the adjunctive treatment of major depressive disorder: a randomized, active-referenced, placebo-controlled study. AB - OBJECTIVE: To assess the efficacy, safety, and tolerability of brexpiprazole as adjunctive treatment in adults with major depressive disorder (MDD) and an inadequate response to prior antidepressant treatment (ADT). METHODS: Patients with a current major depressive episode after prior treatment with 1-3 ADTs entered an 8- or 10-week prospective treatment phase in which they received double-blind placebo adjunct to open-label ADT. Inadequate responders were randomized (2:2:1) to brexpiprazole 2-3 mg/day, placebo, or quetiapine extended release (XR) 150-300 mg/day, adjunct to the same ADT, for 6 weeks. The primary efficacy endpoint was the change from baseline (randomization) to week 6 in Montgomery-Asberg Depression Rating Scale (MADRS) total score. The key secondary efficacy endpoint was the change in Sheehan Disability Scale (SDS) mean score. RESULTS: Adjunctive brexpiprazole showed a greater improvement in MADRS total score than adjunctive placebo (least squares mean difference [95% confidence interval] = -1.48 [-2.56, -0.39]; p = .0078), whereas adjunctive quetiapine XR did not separate from placebo (-0.30 [-1.63, 1.04]; p = .66). Adjunctive brexpiprazole failed to separate from placebo on the SDS mean score (-0.23 [ 0.52, 0.07]; p = .13), but did improve functioning on two of the three SDS items (family life and social life). The most frequent treatment-emergent adverse events in patients receiving brexpiprazole were akathisia (6.1%), somnolence (5.6%), and headache (5.6%). CONCLUSIONS: Adjunctive brexpiprazole 2-3 mg/day improved symptoms of depression compared with adjunctive placebo in patients with MDD and an inadequate response to ADTs, and was well tolerated with no unexpected side effects. PMID- 29343129 TI - Major Achievement by Associate Professor Johanna Westbrook: Election to the American College of Medical Informatics as an International Fellow. AB - Congratulations to Associate Professor Johanna Westbrook PhD, MHA, GradDipAppEpi, BAppSc (Medical Record Administration), who has been elected to the American College of Medical Informatics as an International Fellow. The Fellowship is the highest recognition possible in the health informatics discipline. Based upon peer election from current College Fellows, no more than two Fellowships are offered in any one year, and there are currently only two other Australian Fellows. This is a wonderful honour as it marks the highest peer recognition possible from the international community, reflecting Johanna's outstanding research work. Johanna is currently Deputy Director of the Centre for Health Informatics at the University of New South Wales and is an honorary Associate Professor at the School of Health Information Management at the University of Sydney. Johanna has published over 80 refereed journal articles and has received numerous research grants, the most recent of which is a National Health and Medical Research Council Project Grant of $583 000 for a study investigating the safety and effectiveness of hospital e-prescribing systems. PMID- 29343130 TI - A community-based exercise program to increase participation in physical activities among youth with disability: a feasibility study. AB - PURPOSE: To evaluate the feasibility of a student-mentored community-based exercise program for youth with disability. METHOD: Nineteen youth (nine female; mean age 18 years) with disability (seven cerebral palsy, six Down syndrome, three spina bifida, two autism spectrum disorder, one spinal cord injury) were recruited. Each participant was matched with a student mentor and exercised twice a week for 12 weeks at their local gymnasium. Five domains of feasibility were assessed: demand, implementation, practicality, limited efficacy testing, and acceptability. RESULTS: Demand comprised 55 expressions of interest. Demonstrating evidence of implementation, 91% of scheduled sessions were attended and training fidelity (comparing training load in weeks 1 and 12) showed exercise intensity significantly increased for strength and aerobic exercises. The program was practical with no major and 17 minor adverse events (e.g., muscle soreness). Limited efficacy testing was demonstrated by increased arm (4 kg, 95% CI: 1-7) and leg strength (43 kg, 95% CI: 24-62), walking endurance (80 m, 95% CI: 24 137), and improvement in three dimensions of health-related quality of life (autonomy, physical, and psychological well-being). The program was accepted very positively by participants. CONCLUSIONS: A student-mentored community-based exercise program feasibly engages youth with disability in community-based exercise. Implications for Rehabilitation A 12-week community-based student mentored exercise program for youth with disability is feasible. Exercising in a real-world setting with a student mentor has a positive effect on physical and psychological well-being of youth with disability. PMID- 29343131 TI - Safety and tolerability of plecanatide in patients with chronic idiopathic constipation: long-term evidence from an open-label study. AB - OBJECTIVE: This multi-center, fixed-dose, open-label study evaluated the long term safety and tolerability of once-daily oral plecanatide for the treatment of adults with chronic idiopathic constipation (CIC). METHODS: Eligible patients completed a phase 2b or phase 3 double-blind study of plecanatide, or had not previously been treated with plecanatide. Enrolled patients received plecanatide (3 or 6 mg) for up to 72 weeks. Safety and tolerability were assessed by the incidence, nature, and severity of spontaneously reported treatment-emergent adverse events (TEAEs). Patients also completed Patient Global Assessment questionnaires, which included measures of treatment satisfaction and the desire to continue treatment. RESULTS: There were 2370 patient exposures in this study, with the vast majority (90.5%) receiving treatment with plecanatide 6 mg. At the time of study closure, 1932 (81.5%) had completed or were still receiving study drug. TEAEs were qualitatively and quantitatively similar to those observed in prior double-blind studies. The most common TEAEs were diarrhea (7.1%) and urinary tract infection (2.2%). TEAEs leading to discontinuation occurred in 5.3% of patients, with diarrhea leading to discontinuation in 3.1%. Most TEAEs were mild/moderate in severity and were generally considered not related to plecanatide treatment. At the end of treatment, the median score for treatment satisfaction was 4.0 (quite satisfied), and the median score for treatment continuation was 4.0 (quite likely). CONCLUSIONS: Long-term treatment of adults with CIC demonstrated that plecanatide was safe and well tolerated, with low TEAE and discontinuation rates. Patients indicated satisfaction and a desire to continue with plecanatide treatment. PMID- 29343132 TI - IT14/2 Semantic Interoperability Meeting Report 20 February 2006. PMID- 29343133 TI - Central nervous system malformation associated with methamphetamine abuse during pregnancy. AB - INTRODUCTION: Prenatal methamphetamine exposure is related to prematurity, fetal growth restriction, neurobehavioral effects and long-term motor and cognitive sequelae. PATIENT PRESENTATION: We report the case of a newborn from a Filipina with no prenatal care with a complex brain malformation. Methamphetamine was identified in maternal and neonatal urine and in maternal hair, raising our suspicion of methamphetamine as a cause of this malformation. DISCUSSION: Methamphetamine abuse is a growing problem worldwide. There are little data on its effect on the fetus. To our knowledge, no fetal brain abnormalities have been associated with its use. In our case, the lack of antenatal control does not allow us to date when this malformation appeared. CONCLUSION: The aim of our report is to generate awareness of the possible association between methamphetamine abuse during pregnancy and central nervous system malformations. PMID- 29343134 TI - Implementation of vaginal cleansing prior to cesarean delivery to decrease endometritis rates. AB - BACKGROUND: Endometritis is a postpartum complication that is more common after cesarean delivery. It frequently requires intravenous antibiotic administration, prolonged hospital stays, and carries a risk of sepsis or abscess formation. Precesarean vaginal preparation has been shown to decrease the risk of endometritis in patients who have labored or have ruptured membranes. OBJECTIVE: The objective of this study was to assess the practical implementation of a protocol for vaginal cleansing prior to cesarean delivery and the subsequent effect on endometritis rates in a clinical setting. STUDY DESIGN: This is a before-after retrospective cohort study evaluating the first 6 months of implementation of a vaginal cleansing protocol at a single institution. The primary outcome was the rate of implementation. Secondary outcomes included endometritis and other postoperative complications. RESULTS: The rate of implementation after 6 months was 68.3% (p < .001) and postoperative endometritis rates decreased from 14.0% before implementation to 11.7% after implementation (p .49, OR 0.77, CI 0.36-1.62). Postoperative fever decreased from 22.3% to 18.3% (p .256, OR 0.70, CI 0.37-1.30) and infectious wound complications were 4.5% and 5.8%, respectively (p .76, OR 1.07, CI 0.69-3.64). CONCLUSIONS: Implementation of a protocol for vaginal cleansing prior to cesarean delivery in women with ruptured membranes or in labor has high uptake, but in almost a third of eligible women it was not performed. The implementation, has led to a clinical, although not statistical, decrease in postoperative endometritis. Continued research is needed to explore how to improve uptake of this quality improvement measure. PMID- 29343135 TI - Genetic polymorphisms in folate metabolism as risk for Down syndrome in the southern China. AB - OBJECTIVE: To assess the association between maternal gene polymorphisms of the enzymes involved in folate metabolism and the risk of having a Down syndrome (DS) offspring in southern China mothers. METHODS: Gene polymorphisms in folate metabolizing and the levels of homocysteine (HCY) were analyzed in 84 southern China mothers with DS babies (the case group) and 120 healthy mothers (the control group). Methylenetetrahydrofolate reductase (MTHFR) C677T (rs1801133) and A1298C (rs1801131), methionine synthase (MTR) A2756G (rs1805087), and methionine synthase reductase (MTRR) A66G (rs1801394) were studied. RESULTS: We found no significant differences (p > .05) in the frequencies of four genetic polymorphisms between the two groups. We found gene-gene interactions had a 1.997 fold increased risk in MTHFR 677 CT with MTR AA (OR: 1.997, 95% CI: 1.038-3.841, p = .038) and a 2.588-fold increased risk in MTHFR 677 CT with MTRR AG (OR: 2.588, 95% CI: 1.111-6.031, p = .028) in the case group than control. The levels of HCY were significantly higher in MTHFR 677 TT than MTHFR 677 CC in the case group (TT 17.2167+/-5.1051, CC 12.1969+/-5.0299, F = 2.194, p < .05), and it was significantly higher in MTHFR 677 TT in the case group than control (TT 17.2167+/ 5.1051 in the case group, TT 10.2286+/-1.4373 in the control group, F = 2.546, p < .05). CONCLUSION: These results suggest that genetic polymorphisms involved in folate metabolism may have population specificity in determining the susceptibility of having DS offsprings. The gene-nutrition, gene-gene interactions and ethnicity are important variables to be considered in periconceptional nutritional supplementation and antenatal care for reducing the risk of DS babies. PMID- 29343136 TI - Heme oxygenase activity increases after exercise in healthy volunteers. AB - Heme oxygenase (HO) is an essential, rate-limiting protein which catalyses the breakdown of heme to iron, carbon monoxide (CO), and biliverdin. The alpha methene bridge of the heme is eliminated as CO which can be measured as blood carboxyhaemoglobin (COHb). Using blood concentrations of COHb as a measure reflecting HO activity, we tested the postulate that the activity of HO changes with exercise. Ten healthy, nonsmoking volunteers (5 females and 5 males with a mean age +/- standard deviation of 25.7 +/- 3.2 years), lifetime nonsmokers with no history of respiratory diseases and not taking any medication, were included in the study. Subjects were exposed to filtered air for 2 hrs while alternating exercise for 15 minutes on a cycle ergometer with rest for 15 minutes. Workload was adjusted so that subjects breathed at a ventilatory rate, normalised for body surface area, of 25 L/m2/minute. Immediately before, immediately after, and the day following exercise, blood was drawn by standard venipuncture technique. COHb was determined using the interleukin (IL) 682 Co-Oximeter (Instrumentation Laboratory, Bedford, MA). COHb increased in each participant during the exercise session with the mean value (+/- standard deviation) almost doubling (1.1 +/- 1.6 to 2.1 +/- 1.6%) and returned to baseline by the following day (1.3 +/- 1.3%). We conclude that exercise increases HO activity. PMID- 29343137 TI - Hybrid aortic arch and frozen elephant trunk reconstruction: bridging the gap between conventional and total endovascular arch repair. AB - INTRODUCTION: Novel endovascular techniques hope to offer patients aortic arch repair with reduced morbidity compared to conventional arch surgery; however, current endovascular strategies remain challenged by the proximal seal zone, higher stroke rates, long-term durability and select anatomy. Hybrid arch repair offers patients a less invasive alternative that can treat more distal aorta than conventional arch repair yet still be performed via standard sternotomy. Areas covered: This review will discuss the current evidence and future development of hybrid aortic arch and frozen elephant trunk reconstruction. Several approaches to hybrid arch repair are summarized, including the off-label use of thoracic endovascular stent-grafts and commercially manufactured hybrid grafts. Technical considerations and clinical outcomes with each approach will be addressed along with advantages and disadvantages. Expert commentary: Hybrid arch repair will undergo continued refinement as our ability to provide a less-invasive alternative to conventional open arch repair grows. Evolution to allow for improved head vessel branch sizing, improved frozen elephant trunk deployment accuracy, monitoring to prevent paraplegia and utilization of intraoperative image guidance in hybrid operating rooms is necessary. The potential exists for hybrid approaches to arch pathology to completely supplant conventional surgery, while avoiding the potential deleterious complications of total endovascular repair. PMID- 29343138 TI - The efficacy of myo-inositol supplementation to prevent gestational diabetes onset: a meta-analysis of randomized controlled trials. AB - INTRODUCTION: The efficacy of myo-inositol supplementation to prevent gestational diabetes onset remains controversial. We conducted a systematic review and meta analysis to explore the influence of myo-inositol supplementation on the incidence of gestational diabetes. METHODS: We search PubMed, Embase, Web of science, EBSCO, and Cochrane Library databases through November 2017 for randomized controlled trials (RCTs) assessing the effect of myo-inositol supplementation on gestational diabetes onset. This meta-analysis is performed using the random-effect model. RESULTS: Five randomized controlled trials (RCTs) are included in the meta-analysis. Compared with control group in pregnant women, myo-inositol supplementation is associated with significantly reduced incidence of gestational diabetes (risk ratio (RR) = 0.43; 95%CI = 0.21-0.89; p = .02), and preterm delivery (RR = 0.36; 95%CI = 0.17-0.73; p = .005), but has no substantial impact on 2-h glucose oral glucose tolerance test (OGTT) (mean difference (MD) = 6.90; 95%CI = -15.07 to 1.27; p = .10), gestational age at birth (MD = 0.74; 95%CI = -1.06 to 2.54; p = .42), birth weight (MD = -5.50; 95%CI = -116.99 to 105.99; p = .92), and macrosomia (RR = 0.65; 95%CI = 0.20-2.11; p = .47). CONCLUSIONS: Myo-inositol supplementation has some ability to reduce the incidence of gestational diabetes and preterm delivery in pregnant women. PMID- 29343139 TI - The impact of medical school assessment on preparedness for practice. AB - PURPOSE: As assessment is known to drive learning, this paper looks at the relationship between assessment practice across UK medical schools and graduates preparedness for practice. MATERIALS AND METHODS: It uses data on written and practical assessment at each medical school and the association with students' self-reported preparedness for working as a foundation doctor on graduation, and in particular the preparation related to clinical skills. RESULTS AND CONCLUSIONS: A negative correlation (beta= -0.003, p < 0.001) was observed between total duration of written assessment and preparedness, while a positive relationship (beta = 0.461, p < 0.001) was seen between "adequately prepared" and the proportion of all assessment time focusing on practical skills. This suggests that graduates from medical schools with a greater emphasis on practical skills in their assessment plan are better prepared to practice as a junior doctor on gradation; something that may be of relevance when designing a national licensing examination. PMID- 29343140 TI - A heterogeneous tissue model for treatment planning for magnetic resonance-guided laser interstitial thermal therapy. AB - We evaluated a physics-based model for planning for magnetic resonance-guided laser interstitial thermal therapy for focal brain lesions. Linear superposition of analytical point source solutions to the steady-state Pennes bioheat transfer equation simulates laser-induced heating in brain tissue. The line integral of the photon attenuation from the laser source enables computation of the laser interaction with heterogeneous tissue. Magnetic resonance thermometry data sets (n = 31) were used to calibrate and retrospectively validate the model's thermal ablation prediction accuracy, which was quantified by the Dice similarity coefficient (DSC) between model-predicted and measured ablation regions (T > 57 degrees C). A Gaussian mixture model was used to identify independent tissue labels on pre-treatment anatomical magnetic resonance images. The tissue dependent optical attenuation coefficients within these labels were calibrated using an interior point method that maximises DSC agreement with thermometry. The distribution of calibrated tissue properties formed a population model for our patient cohort. Model prediction accuracy was cross-validated using the population mean of the calibrated tissue properties. A homogeneous tissue model was used as a reference control. The median DSC values in cross-validation were 0.829 for the homogeneous model and 0.840 for the heterogeneous model. In cross validation, the heterogeneous model produced a DSC higher than that produced by the homogeneous model in 23 of the 31 brain lesion ablations. Results of a paired, two-tailed Wilcoxon signed-rank test indicated that the performance improvement of the heterogeneous model over that of the homogeneous model was statistically significant (p < 0.01). PMID- 29343141 TI - Novel beta-lactam/beta-lactamase inhibitors versus alternative antibiotics for the treatment of complicated intra-abdominal infection and complicated urinary tract infection: a meta-analysis of randomized controlled trials. AB - INTRODUCTION: The aim of this study is to compare the efficacy and safety of novelBL/BLIs with alternative antibiotics for the treatment of cIAI and cUTI. Area covered: We performed a systematic review and meta-analysis of all randomized controlled trials comparing novel BL/BLIs with other antibiotics for the treatment of cIAI and cUTI. The primary outcome included clinical and microbiological treatment success. Expert commentary: We found that novel BL/BLIs obtained a similar clinical outcome with other antibiotics in CE population (OR = 1.07, 95%CI = (0.80, 1.44), P = 0.64). However, novel BL/BLIs had better clinical treatment success in the cUTI subgroup (OR = 2.14, 95%CI = (1.06, 4.31), P = 0.03). Furthermore, novel BL/BLIs achieved significant microbiological treatment success in patie nts with cUTI (OR = 1.70, 95%CI = (1.29, 2.25), P = 0.0002) and had higher eradication rates for Gram-negative pathogens (OR = 1.82, 95%CI = (1.26, 2.64), P = 0.001) including E.coli and K.pneumoniae. No difference was observed concerning the incidence of mortality and adverse events between the two groups. Therefore, we concluded that novel BL/BLIs are not inferior to other available antibiotics for the treatment of cIAI, and they have advantages in patients with cUTI. Simultaneously, they are sensitive to Gram-negative pathogens, especially for E.coli and K.pneumoniae. PMID- 29343142 TI - A 500 U/2 mL dilution of abobotulinumtoxinA vs. placebo: randomized study in cervical dystonia. AB - : Purpose/aim: AbobotulinumtoxinA (Dysport(r), Ipsen Biopharmaceuticals, Inc., Basking Ridge, NJ, USA) is an acetylcholine release inhibitor and a neuromuscular blocking agent. The United States prescribing information for abobotulinumtoxinA previously indicated only one dilution for cervical dystonia: 500 U/1 mL. Clinical trial data supporting a larger volume with a 500 U/2 mL dilution would offer clinicians flexibility with injection volume to better meet patient needs. MATERIALS AND METHODS: We conducted a 12-week, phase 3b, multicenter, randomized, double-blind, placebo-controlled trial (NCT01753310). Adult subjects with a primary diagnosis of cervical dystonia were randomized (2:1) to receive a single injection of either abobotulinumtoxinA, 500 U/2 mL dilution, or placebo. The primary efficacy endpoint was changed from baseline in Toronto Western Spasmodic Torticollis Rating Scale total score at Week 4. RESULTS: A total of 134 subjects (abobotulinumtoxinA, n = 89; placebo, n = 45) were randomized (intent-to-treat population) and 129 (abobotulinumtoxinA, n = 84; placebo, n = 45) completed the Week 4 primary endpoint evaluation (modified intent-to-treat population). In the modified intent-to-treat population, subjects receiving abobotulinumtoxinA experienced significantly greater changes from baseline versus placebo on the primary endpoint (weighted overall treatment difference -8.3, P < 0.001). The most common treatment-emergent adverse events (TEAEs) were dysphagia, muscle weakness, neck pain and headache. Overall, TEAEs were consistent with those reported in the abobotulinumtoxinA prescribing information (1 mL dilution) for cervical dystonia patients. CONCLUSIONS: This trial provides evidence that a 500 U/2 mL dilution is an effective treatment for cervical dystonia and exhibits a safety profile consistent with the known safety profile of abobotulinumtoxinA. PMID- 29343143 TI - Colorectal cancer patients' preferences for type of caregiver during survivorship care. AB - PURPOSE: Colorectal cancer (CRC) survivors are currently included in a secondary care-led survivorship care programme. Efforts are underway to transfer this survivorship care to primary care, but met with some reluctance by patients and caregivers. This study assesses (1) what caregiver patients prefer to contact for symptoms during survivorship care, (2) what patient factors are associated with a preferred caregiver, and (3) whether the type of symptom is associated with a preferred caregiver. METHODS: A cross-sectional study of CRC survivors at different time points. For 14 different symptoms, patients reported if they would consult a caregiver, and who they would contact if so. Patient and disease characteristics were retrieved from hospital and general practice records. RESULTS: Two hundred and sixty patients participated (response rate 54%) of whom the average age was 67, 54% were male. The median time after surgery was seven months (range 0-60 months). Patients were divided fairly evenly between tumour stages 1-3, 33% had received chemotherapy. Men, patients older than 65 years, and patients with chronic comorbid conditions preferred to consult their general practitioner (GP). Women, patients with stage 3 disease, and patients that had received chemotherapy preferred to consult their secondary care provider. For all symptoms, patients were more likely to consult their GP, except for (1) rectal blood loss, (2) weight loss, and (3) fear that cancer had recurred, in which case they would consult both their primary and secondary care providers. Patients appreciated all caregivers involved in survivorship care highly; with 8 out of 10 points. CONCLUSIONS: CRC survivors frequently consult their GP in the current situation, and for symptoms that could alarm them to a possible recurrent disease consult both their GP and secondary care provider. Patient and tumour characteristics influence patients' preferred caregiver. PMID- 29343144 TI - Cell-surface proteomics for the identification of novel therapeutic targets in cancer. AB - INTRODUCTION: Cancer is the second most common cause of death worldwide and its heterogeneity complicates therapy. Standard cytotoxic regiments disrupt rapidly dividing cells, regardless of their neoplastic status. The introduction of less toxic targeted therapies has partially contributed to the observed decrease in cancer-related mortality. Cell-surface proteins represent attractive targets for therapy, due to their easily-accessible localization and their involvement in essential signaling pathways, often dysregulated in cancer. Despite their clinical appeal, cell-surface proteins are often underrepresented in standard proteomic data sets, due to their poor solubility and lower expression levels compared to intracellular proteins. Areas covered: This review will summarize some of the available techniques for enriching the cell-surface proteome, and discuss their advantages, limitations and applicability to clinical sample testing. Moreover, we discuss currently available strategies for the development of novel targeted therapies in cancer. Expert commentary: The interest in elucidating the cancer-associated surfaceome is growing and will likely benefit from recent advancements in instrument sensitivity, method development, and a growing body of high-quality proteomics databases. Multiomics studies, in combination with functional validations (e.g. dropout screens), and evaluation of the healthy surfaceome, will likely aid in the selection of relevant targets for future therapy development. PMID- 29343145 TI - Principles of focused ultrasound. AB - Focused ultrasound (FUS/HIFU) relies on ablation of pathological tissues by delivering a sufficiently high level of acoustic energy in situ of the human body. Magnetic Resonance guided FUS (MRgFUS/HIFU) and Ultrasound guided (USgFUS/HIFU) are image guided techniques combined with therapeutic FUS for monitoring purposes. The principles and technologies of FUS/HiFU are described in this paper including the basics of MR guidance techniques and MR temperature mapping. Clinical applications of FUS/HIFU gained CE and FDA approvals for the treatment of various benign and few malignant lesions in the last two decades. Current technical limitations of ultrasound guided and MRI guided Focused Ultrasound, as well as adverse effects for the application of this technique are outlined including challenges of ablating moving organs (liver and kidney). An outlook to possible applications is provided; exampling clinical trials discussing future options. PMID- 29343146 TI - Induction of labor in cases of late preterm isolated oligohydramnios: is it justified? AB - OBJECTIVES: To analyze in a retrospective cohort study the outcomes of pregnancies with isolated oligohydramnios at the late preterm period (34-36.6 weeks of gestation). STUDY DESIGN: This retrospective cohort study included three groups of women: (1) Women with isolated oligohydramnios whose pregnancy was managed conservatively (n = 33 births); (2) women with isolated oligohydramnios who were managed actively (i.e. induction of labor) (n = 111 births); and (3) a control group including women with normal amount of amniotic fluid who had a spontaneous late preterm delivery (n = 10,445 births). Maternal and fetal characteristics and obstetrics outcomes were collected from a computerized database of all deliveries at Soroka University Medical Center during the study period. RESULTS: Our cohort included 10,589 births. The rate of inducing labor was higher in the oligohydramnios groups compared to the controls (p < .001). There was an increase in the rate of cesarean section (CS) in the conservative treatment group (p < .001), compared with the other groups. Conservative management was associated with higher rates of maternal infection (p = .026), chorioamnionitis (p = .01), and transitory tachypnea of the newborn (p = .02). After controlling for confounding factors, mal presentation (OR = 19.9), and a prior CS (OR = 2.4) were independently associated with an increased risk for CS, while induction of labor was associated with a reduced risk for CS (OR = 0.28). CONCLUSIONS: Women with late preterm isolated oligohydramnios had a higher rate of induction of labor than women with a normal amount of amniotic fluid. Induction of labor seems to be beneficial to both the neonate and the mother as seen by a lower rate of CS conducted in this group, as well as lower maternal and neonatal morbidity in comparison to the conservative group. Therefore, women with oligohydramnios at late preterm may benefit from induction of labor. PMID- 29343147 TI - Estimation of intra-arterial chemotherapy distribution to the retina in pediatric retinoblastoma patients using quantitative digital subtraction angiography. AB - Background and purpose The purpose of this article is to estimate the distribution of superselective intra-arterial chemotherapy (IAC) delivery to ocular target tissue using quantitative digital subtraction angiography (qDSA). Materials and methods From March 2010 to January 2016, 50 ophthalmic artery contrast DSAs obtained immediately prior to IAC infusions in 22 patients were analyzed. This study was conducted under a retrospective review IRB (no. 10 01862). Parametric color-coded DSAs (iFlow, Siemens Medical) were post-processed (MATLAB, The Mathworks Inc.) using two methods: two box regions of interest (pre retina and globe) and four custom regions of interest (ROIs-ophthalmic artery, choroid, supraclinoid internal carotid artery (ICA), cavernous ICA). Mean interobserver reliability of custom ROI selection is presented as a 95% confidence interval of interclass correlation, and fractional chemotherapy delivery to selected ROIs as means +/- standard deviation in this study. Results The estimated fraction of chemotherapy delivered to the globe with the first method was 79.5%. Percentage regional delivery using the second method was as follows: ophthalmic artery, 85.8%; choroid, 60.5%; supraclinoid ICA, 14.2%. The cavernous ICA ROI (encompassing distal catheter and potential reflux) gave a signal equivalent to 9.3% of total delivery. Conclusion Parametric color-coded qDSA can estimate the fraction of IAC delivered to the retina and other orbital structures in ocular retinoblastoma patients. This information can inform delivery location and dosing strategies on a patient-specific basis. PMID- 29343149 TI - Interventional bronchoscopy in adults. AB - INTRODUCTION: The field of interventional pulmonology (IP) is a rapidly maturing subspecialty of pulmonary medicine, which emphasizes advanced diagnostic and therapeutic bronchoscopy for the evaluation and management of central airway obstruction, mediastinal/hilar adenopathy and lung nodules/masses, as well as minimally invasive diagnostic and therapeutic pleural procedures. Areas covered: This review describes advances in diagnostic and therapeutic bronchoscopic techniques. Expert commentary: In the past decade, there has been a remarkable growth in available technology and equipment, as well as clinical and translational research efforts focused on patient-centered outcomes. Furthermore, the recent establishment of a uniform accreditation standard for all IP fellowship programs in the United States was an important step in the continued evolution of this subspecialty of pulmonary medicine. PMID- 29343148 TI - Predictors of intracranial hemorrhage volume and distribution in brain arteriovenous malformation. AB - Background and purpose Despite evidence regarding risk factors for brain arteriovenous malformation (bAVM)-associated spontaneous intracranial hemorrhage (ICH), few data exist describing the spectrum of clinical outcomes that bAVM associated ICH may manifest. This study aimed to identify the demographical, clinical, and bAVM anatomical variables associated with ICH volume and the presence of intraventricular hemorrhage (IVH) of ruptured bAVMs, two indicators of worse clinical outcome, to help better predict outcome for unruptured bAVMs. Methods Computed tomography images ( n = 169) of patients with ruptured bAVM in a prospectively maintained institutional database were retrospectively reviewed to calculate ICH volume and the presence or absence of IVH. Demographic, clinical, and bAVM characteristics information was summarized and analyzed with univariable and multivariable regression models to identify the associations of these features with ICH volume and the presence of IVH. Results Patient sex, exclusively deep venous drainage, and lobar location were associated with ICH volume in univariable analysis; exclusively deep venous drainage remained significant in multivariable analysis (PI = 0.33, 95% CI: 0.21-0.52, p < 0.001). Exclusively deep venous drainage, multiple feeding arteries, and venous stenosis were associated with IVH in univariable analysis; exclusively deep venous drainage (OR = 7.27, 95% CI: 1.94-27.29, p = 0.003) remained significant in multivariable analysis. Conclusions Variables associated with ICH volume and the presence of IVH in ruptured bAVMs were evaluated and identified. They impart information that may help predict the clinical outcome of unruptured bAVM, in turn aiding clinicians in treatment planning. PMID- 29343150 TI - Eight-year outcomes of a competency-based residency training program in orthopedic surgery. AB - BACKGROUND: The Division of Orthopaedic Surgery at the University of Toronto implemented a pilot residency training program that used a competency-based framework in July of 2009. The competency-based curriculum (CBC) deployed an innovative, modularized approach that dramatically intensified both the structured learning elements and the assessment processes. METHODS: This paper discusses the initial curriculum design of the CBC pilot program; the refinement of the curriculum using curriculum mapping that allowed for efficiencies in educational delivery; details of evaluating resident competence; feedback from external reviews by accrediting bodies; and trainee and program outcomes for the first eight years of the program's implementation. RESULTS: Feedback from the residents, the faculty, and the postgraduate residency training accreditation bodies on the CBC has been positive and suggests that the essential framework of the program may provide a valuable tool to other programs that are contemplating embarking on transition to competency-based education. CONCLUSIONS: While the goal of the program was not to shorten training per se, efficiencies gained through a modular, competency-based program have resulted in shortened time to completion of residency training for some learners. PMID- 29343151 TI - Correction to: Carpen et al., Presenting symptoms and clinical findings in HPV positive and HPV-negative oropharyngeal cancer patients. PMID- 29343152 TI - Impact of dosage timing on the bioavailability of oral anticancer medications: Is pre-prandial dosing equivalent to post-prandial dosing. AB - Many oral anticancer agents are recommended to be given either at least 1 h before or 2 h after a meal, according to the prescribing information. However, the effect of dosage timing of an oral anticancer agent with reference to food intake on anticancer treatment remains unclear. As shown by the literature survey and labeling analysis for oral anticancer drugs approved by the US Food and Drug Administration from 2010 to 2016, labeling information regarding dosage timing for several anticancer drugs appeared not be optimum, leading to suboptimal bioavailability and plasma drug concentrations. This supports a call to regularly recalibrate the labeling information for dosage timing of oral anticancer medications to minimize the risks of compromised efficacy or unintended toxicities. PMID- 29343153 TI - Cryptococcal infections in two patients receiving ibrutinib therapy for chronic lymphocytic leukemia. AB - Cryptococcal infections are responsible for significant morbidity and mortality in immunocompromised patients. Reports of these infections in patients on small molecular kinase inhibitors have not been widely reported in clinical trials. We describe one case of cryptococcal meningoencephalitis and one case of cryptococcal pneumonia in two patients who were receiving ibrutinib for chronic lymphocytic leukemia. Despite different sites of cryptococcal infection, both patients had similar presentations of acute illness. Patient 1 was worked up for health care-associated pneumonia, as well as acute sinusitis prior to the diagnosis of cryptococcal meningoencephalitis. He also had a more complex past medical history than patient 2. Patient 2 developed atrial fibrillation from ibrutinib prior to admission for presumed health care-associated pneumonia. Cryptococcal antigen testing was done sooner in this patient due to patient receiving high-dose steroids for the treatment of underlying hemolytic anemia. We conclude that patients who develop acute illness while receiving ibrutinib should be considered for cryptococcal antigen testing. PMID- 29343154 TI - Dasatinib-induced pulmonary arterial hypertension - A rare late complication. AB - Dasatinib is a dual Src/Abl tyrosine kinase inhibitor approved for frontline and second line treatment of chronic phase chronic myelogenous leukemia. Pulmonary arterial hypertension is defined by an increase in mean pulmonary arterial pressure >25 mmHg at rest. Dasatinib-induced pulmonary hypertension has been reported in less than 1% of patients on chronic dasatinib treatment for chronic myelogenous leukemia. The pulmonary arterial hypertension from dasatinib may be categorized as either group 1 (drug-induced) or group 5 based on various mechanisms that may be involved including the pathogenesis of the disease process of chronic myelogenous leukemia. There have been reports of dasatinib-induced pulmonary arterial hypertension being reversible. We report a case of pulmonary arterial hypertension in a 46-year-old female patient with chronic phase chronic myelogenous leukemia on dasatinib treatment for over 10 years. She had significant improvement in symptoms after discontinuation of dasatinib and initiation of vasodilators. Several clinical questions arise once patients experience significant adverse effects as discussed in our case. PMID- 29343155 TI - Carboxymethyl chitosan-zinc coating for prevention of pin tract infection: An animal model. AB - BACKGROUND: Pin tract infection is a common problem in orthopedic and traumatology surgery. The aim of this study was to investigate the efficacy of an implant coated with carboxymethyl chitosan-zinc (CMC-Zn2+) in prevention of pin tract infection. MATERIALS AND METHODS: Twenty-four male New Zealand White rabbits were randomized into two equal groups ( n = 12, uncoated and CMC-Zn2+). The implants were colonized with 1 * 106 colony forming units of Staphylococcus aureus and inserted into the lateral right proximal tibia in each rabbit. In each group, at 2 and 4 weeks post-surgery, five and seven rabbits were killed, respectively, to harvest the soft tissues around the implant as well as the hard tissue for histological analysis. The bone cross-sectional view, X-ray, and micro computed tomography (MUCT) were performed. RESULTS: The surgical sites in each animal were evaluated individually at both time points. No evident signs of infections were found in the CMC-Zn2+ group, while a high rate of infection was observed in the uncoated group where minor infections were 85.71% ( n = 12) and major infections 14.29% ( n = 12). The radiography, MUCT, and histological analysis showed no evident signs of infection in both groups at 2 weeks post surgery. However, at 4 weeks, signs of infection were found in all the animals in the uncoated group, whereas in the CMC-Zn2+ group, no infections were observed. The difference between the two groups was highly significant ( p = 0.00). CONCLUSIONS: Our study showed that CMC-Zn2+-coated implants were effective in preventing pin tract infection. PMID- 29343156 TI - Patient contributions during primary care consultations for hypertension after self-reporting via a mobile phone self-management support system. AB - OBJECTIVE: This paper reports on how the clinical consultation in primary care is performed under the new premises of patients' daily self-reporting and self generation of data. The aim was to explore and describe the structure, topic initiation and patients' contributions in follow-up consultations after eight weeks of self-reporting through a mobile phone-based hypertension self-management support system. DESIGN: A qualitative, explorative study design was used, examining 20 audio- (n = 10) and video-recorded (n = 10) follow-up consultations in primary care hypertension management, through interaction analysis. Clinical trials registry: ClinicalTrials.gov NCT01510301. SETTING: Four primary health care centers in Sweden. SUBJECTS: Patients with hypertension (n = 20) and their health care professional (n = 7). RESULTS: The consultations comprised three phases: opening, examination and closing. The most common topic was blood pressure (BP) put in relation to self-reported variables, for example, physical activity and stress. Topic initiation was distributed symmetrically between parties and BP talk was lifestyle-centered. The patients' contributed to the interpretation of BP values by connecting them to specific occasions, providing insights to the link between BP measurements and everyday life activities. CONCLUSION: Patients' contribution through interpretations of BP values to specific situations in their own lives brought on consultations where the patient as a person in context became salient. Further, the patients' and health care professionals' equal contribution during the consultations showed actively involved patients. The mobile phone-based self-management support system can thus be used to support patient involvement in consultations with a person-centered approach in primary care hypertension management Key points The clinical consultation is important to provide opportunities for patients to gain understanding of factors affecting high blood pressure, and for health care professionals to motivate and promote changes in life-style. This study shows that self-reporting as base for follow-up consultations in primary care hypertension management can support patients and professionals to equal participation in clinical consultations. Self-reporting combined with increased patient-health care professional interaction during follow-up consultations can support patients in understanding the blood pressure value in relation to their daily life. These findings implicate that the interactive mobile phone self management support system has potential to support current transformations of patients as recipients of primary care, to being actively involved in their own health. PMID- 29343157 TI - The clinician-educator has no clothes. PMID- 29343159 TI - Celebrating 40 years of Medical Teacher: As the "last man standing" I look back to help us look forward. AB - INTRODUCTION: In this reflective, descriptive, analytical, first-person piece, I offer recollections, data, and literature to help elucidate the emergence of medical education as a scholarly field, as part of celebrating Medical Teacher's 40-year anniversary. I emphasize the impressive growth of the professional literature in medical education, and recognize that much remains to be done. FINDINGS: Medical education as a domain for research and development has transitioned from being largely ignored during the first 20 of the past 60 years, through a slow growth phase, to rapid acceleration during the last 2 decades. By introducing the use and potential of "edumarkers," we can see that medical education as a focus of scholarly pursuits was absent to minimal before recent decades, and we can identify trends and questions that deserve further exploration. Concern and recommendations: Only a small subset of the large population assigned to instruct health professions learners actually conducts and responds to medical education scholarship. I raise several questions as possible guides to the future for those of us who are devoted to enhancing educational processes and outcomes for learners who are expected to help prevent and manage the health challenges faced by the world's people. PMID- 29343158 TI - Placebo Effects in Traumatic Brain Injury. AB - In recent years, several randomized controlled trials evaluating pharmaceutical treatments for traumatic brain injury (TBI) have failed to demonstrate efficacy over placebo, with both active and placebo arms improving at comparable rates. These findings could be viewed in opposing ways, suggesting on the one hand failure of the tested outcome, but on the other, representing evidence of robust placebo effects in TBI. In this article, we examine several of the primary psychological processes driving placebo effects (verbal suggestion, cognitive re framing, interpersonal interactions, conditioning, therapeutic alliance, anxiety reduction) as well as placebo neurobiology (top-down cortical regulation, reward system activation, dopaminergic and serotonergic neurotransmission). We then extrapolate from the literature to explore whether something inherent in TBI makes it particularly responsive to placebos. Viewed as such here, placebos may indeed represent a powerful and effective treatment for a variety of post-TBI complaints. PMID- 29343160 TI - Public School Nursing Practice in the United States. AB - School nursing practice has changed dramatically over the past 20 years, yet few nationally representative investigations describing the school nursing workforce have been conducted. The National School Nurse Workforce Study describes the demographic and school nursing practice patterns among self-reported public school nurses and the number and full-time equivalent (FTE) positions of all school nurses in the United States. Using a random sample stratified by public/private, region, school level, and urban/rural status from two large national data sets, we report on weighted survey responses of 1,062 public schools. Additional questions were administered to estimate the school nurse population and FTEs. Findings reported illustrate differences by strata in public school nurse demographics, practice patterns, and nursing activities and tasks. We estimate approximately 132,300 self-identified practicing public and private school nurses and 95,800 FTEs of school nurses in the United States. Research, policy, and school nursing practice implications are discussed. PMID- 29343162 TI - Psychopathy and Victim Selection: Does Nonverbal Decoding or Empathy Impact Vulnerability Ratings? AB - This research examined the role of psychopathic traits in perceptions of victimization and vulnerability. Community-member participants viewed video clips of victims, nonvictims, and victims who studied self-defense, then rated them on vulnerability and perceived history of victimization. Participants were most proficient at identifying nonvictims as nonvictims. Victims who studied self defense were harder to correctly identify than both victims and nonvictims and were rated by participants as less vulnerable and less likely to be victims than other victims and nonvictims. Moreover, individuals high in psychopathic traits, specifically Factor 2, were more likely than individuals low in psychopathic traits to correctly identify victims who practiced self-defense as victims, as well as nonvictims as victims. Unexpectedly, there was an observed negative relationship between facial affect decoding and identifying self-defense victims. The ability to correctly interpret facial expressions was found to partially mediate the relationship between psychopathy scores and the identification of self-defense victims. The results of this study provide insight into the ability of individuals with psychopathic traits to identify nonverbal cues associated with vulnerability. The results provide evidence that taking self-defense classes may be a meaningful intervention for victims, particularly. PMID- 29343163 TI - Magnetic resonance imaging changes following natalizumab discontinuation in multiple sclerosis patients with progressive multifocal leukoencephalopathy. AB - BACKGROUND: Detecting early progressive multifocal leukoencephalopathy-immune reconstitution inflammatory syndrome (PML-IRIS) is clinically relevant. OBJECTIVE: Evaluating magnetic resonance imaging (MRI) changes following natalizumab (NTZ) discontinuation and preceding PML-IRIS. METHODS: MRIs (including diffusion-weighted imaging (DWI), T2-weighted fluid-attenuated inversion recovery (T2-FLAIR), post-contrast T1-weighted sequences) were performed every week following PML diagnosis in 11 consecutive NTZ-PML patients. PML expansion, punctate lesions, contrast-enhancement, and mass-effect/edema were evaluated on each MRI sequence, following NTZ discontinuation. RESULTS: PML-IRIS occurred from 26 to 89 days after NTZ discontinuation. MRI changes prior to early PML-IRIS appeared significantly more pronounced using DWI compared to T2-FLAIR imaging ( p < 0.003). Two DWI features (marked PML expansion, punctate lesions) systematically preceded contrast-enhancement. CONCLUSION: Subtle changes may occur on DWI preceding contrast-enhancement. PMID- 29343161 TI - Addressing the Social Determinants of Health: A Call to Action for School Nurses. AB - Social determinants of health (SDOH), the conditions in which children are born, grow, live, work or attend school, and age, impact child health and contribute to health disparities. School nurses must consider these factors as part of their clinical practice because they significantly and directly influence child well being. We provide clinical guidance for addressing the SDOH when caring for children with three common health problems (obesity, insufficient sleep, and asthma). Given their unique role as school-based clinical experts, care coordinators, and student advocates, school nurses are well suited to serve as leaders in addressing SDOH. PMID- 29343164 TI - Inflammatory and Oxidative Responses in Pregnancies With Obesity and Periodontal Disease. AB - BACKGROUND: Maternal obesity is related to immunologic and inflammatory systemic modifications that may worsen the pregnancy inflammatory status. Hormonal changes during pregnancy can adversely affect oral biofilms and oral health initiating or worsening periodontal diseases, with enhanced local and systemic oxidative stress and inflammation. OBJECTIVE: The aim of this study was to examine the relationship between local salivary and systemic parameters of oxidative stress and inflammation in relation to obesity and periodontal diseases. STUDY DESIGN: Sixty-two women with singleton pregnancies were enrolled. Twenty-seven women were normal weight (NW; 18.5< body mass index [BMI] <25 kg/m2) and 35 obese (BMI >=30 kg/m2). Seventeen of the obese had gestational diabetes mellitus (GDM). During third trimester, periodontal status was evaluated, saliva (s) was collected to assess total antioxidant capacity (s-TAC) and C-reactive protein (s-CRP) levels, and venous plasma (p) was used to measure CRP levels (p-CRP). Maternal, fetal, and placental data were registered at delivery. RESULTS: Levels of s-TAC, s-CRP, and p-CRP were significantly higher in obese, particularly in the presence of GDM, compared to NW and related to each other ( P = .000; r > 0.59), to maternal BMI ( P = .000; r > 0.52), and fasting glycemia ( P < .002; r > 0.47). Periodontal disease was more frequent in obese groups (80%) versus NW (52%; P = .04), particularly when GDM was diagnosed ( P = .009). A significant interaction effect between maternal BMI and oral condition was found for s-TAC levels. Obese with periodontitis showed significant increase in local and systemic parameters versus NW. CONCLUSION: Obesity and periodontal disease could synergistically amplify the inflammatory and oxidative status, resulting in increased local and systemic biomarkers particularly when GDM is diagnosed. PMID- 29343165 TI - HIV and renal disease: a contemporary review. AB - The presence of human immunodeficiency virus (HIV)-related kidney disease is an important cause of mortality and morbidity. HIV infection induces renal injury by direct cytotoxicity or immune complex-mediated glomerulonephritis in patients with genetic susceptibility factors. In the last decades, with the development and diffusion of combination antiretroviral therapy, which has prolonged patient survival, there has been a shift in the spectrum of renal diseases in HIV infected patients, with the decrease of glomerular diseases and increase in the role of nephrotoxicity and co-morbidities. This review provides a contemporary and critical review on the main renal syndromes occurring in HIV-infected patients. PMID- 29343166 TI - Consensus statement of the International Summit on Intellectual Disability and Dementia on valuing the perspectives of persons with intellectual disability. AB - The International Summit on Intellectual Disability and Dementia covered a range of issues related to dementia and intellectual disability, including the dearth of personal reflections of persons with intellectual disability affected by dementia. This article reflects on this deficiency and explores some of the personal perspectives gleaned from the literature, from the Summit attendees and from the experiences of persons with intellectual disability recorded or scribed in advance of the two-day Summit meeting. Systemic recommendations included reinforcing the value of the involvement of persons with intellectual disability in (a) research alongside removing barriers to inclusion posed by institutional/ethics review boards, (b) planning groups that establish supports for dementia and (c) peer support. Practice recommendations included (a) valuing personal perspectives in decision-making, (b) enabling peer-to-peer support models, PMID- 29343167 TI - A cluster randomised feasibility trial of clinically assisted hydration in cancer patients in the last days of life. AB - BACKGROUND: The provision of clinically assisted hydration at the end-of-life is one of the most contentious issues in medicine. AIM: The aim of this feasibility study was to answer the question 'can a definitive (adequately powered) study be done?' DESIGN: The study was a cluster randomised trial, with sites randomised on a one-to-one basis to intervention 'A' (regular mouth care and usual other care) or intervention 'B' (clinically assisted hydration, mouth care and usual other care). Participants were assessed every 4 h, and data collected on clinical problems, therapeutic interventions and overall survival. SETTING/PARTICIPANTS: The study was conducted at 12 sites/'clusters' with specialist palliative care teams (4 cancer centres and 8 hospices), and participants were cancer patients in the last week of life who were unable to maintain sufficient oral fluid intake. RESULTS: The study achieved its pre-determined criteria for success. Two hundred patients were recruited to the study, and 199 participants completed the study, over a 1-year period. A total of 38.5% participants discontinued clinically assisted hydration due to adverse effects: none of these adverse events were rated as 'severe' or worse in intensity. The primary reasons for discontinuation were site problems ( n = 2), localised oedema ( n = 13), generalised oedema ( n = 5), respiratory secretions ( n = 6) and nausea and vomiting ( n = 1). CONCLUSION: The results of this feasibility study suggest that a definitive study can be done, but that minor changes are needed to the protocol to standardise the administration of clinically assisted hydration (which may reduce the incidence of certain adverse effects). PMID- 29343168 TI - Assessment of goals and priorities in patients with a chronic condition: a secondary quantitative analysis of determinants across 11 countries. AB - OBJECTIVE: To assess the impact of patient characteristics, patient-professional engagement, communication and context on the probability that healthcare professionals will discuss goals or priorities with older patients. DESIGN: Secondary analysis of cross-sectional data from the 2014 Commonwealth Fund International Health Policy Survey of Older Adults. SETTING: 11 western countries. SUBJECTS: Community-dwelling adults, aged 55 or older. MAIN OUTCOME MEASURE: Assessment of goals and priorities. RESULTS: The final sample size consisted of 17,222 respondents, 54% of whom reported an assessment of their goals and priorities (AGP) by healthcare professionals. In logistic regression model 1, which was used to analyse the entire population, the determinants found to have moderate to large effects on the likelihood of AGP were information exchange on stress, diet or exercise, or both. Country (living in Sweden) and continuity of care (no regular professional or organisation) had moderate to large negative effects on the likelihood of AGP. In model 2, which focussed on respondents who experienced continuity of care, country and information exchange on stress and lifestyle were the main determinants of AGP, with comparable odds ratios to model 1. Furthermore, a professional asking questions also increased the likelihood of AGP. CONCLUSIONS: Continuity of care and information exchange is associated with a higher probability of AGP, while people living in Sweden are less likely to experience these assessments. Further study is required to determine whether increasing information exchange and professionals asking more questions may improve goal setting with older patients. Key points A patient goal-oriented approach can be beneficial for older patients with chronic conditions or multimorbidity; however, discussing goals with these patients is not a common practice. The likelihood of discussing goals varies by country, occurring most commonly in the USA, and least often in Sweden. Country-level differences in continuity of care and questions asked by a regularly visited professional affect the goal discussion probability. Patient characteristics, including age, have less impact than expected on the likelihood of sharing goals. PMID- 29343169 TI - Patients' and carers' perspectives of palliative care in general practice: A systematic review with narrative synthesis. AB - BACKGROUND: General practitioners have overall responsibility for community care, including towards end of life. Current policy places generalists at the centre of palliative care provision. However, little is known about how patients and carers understand the general practitioner's role. AIMS: To explore patient and carer perspectives of (1) the role of the general practitioner in providing palliative care to adult patients and (2) the facilitators and barriers to the general practitioner's capacity to fulfil this perceived role. DESIGN: Systematic literature review and narrative synthesis. DATA SOURCES: Seven electronic databases (MEDLINE, Embase, PsycINFO, BNI, CINAHL, Cochrane and HMIC) were searched from inception to May 2017. Two reviewers independently screened papers at title, abstract and full-text stages. Grey literature, guideline, hand searches of five journals and reference list/citation searches of included papers were undertaken. Data were extracted, tabulated and synthesised using narrative, thematic analysis. RESULTS: A total of 25 studies were included: 14 employed qualitative methods, 8 quantitative survey methods and 3 mixed-methods. Five key themes were identified: continuity of care, communication between primary and secondary care, contact and accessibility, communication between general practitioner and patient, and knowledge and competence. CONCLUSION: Although the terminology and context of general practice vary internationally, themes relating to the perceived role of general practitioners were consistent. General practitioners are considered well placed to provide palliative care due to their breadth of clinical responsibility, ongoing relationships with patients and families, and duty to visit patients at home and coordinate healthcare resources. These factors, valued by service users, should influence future practice and policy development. PMID- 29343170 TI - Accuracy of Ultrasonographic Measurements of Inferior Vena Cava to Determine Fluid Responsiveness: A Systematic Review and Meta-Analysis. AB - OBJECTIVE: Fluid responsiveness is the ability to increase the cardiac output in response to a fluid challenge. Only about 50% of patients receiving fluid resuscitation for acute circulatory failure increase their stroke volume, but the other 50% may worsen their outcome. Therefore, predicting fluid responsiveness is needed. In this purpose, in recent years, the assessment of the inferior vena cava (IVC) through ultrasound (US) has become very popular. The aim of our work was to systematically review all the previously published studies assessing the accuracy of the diameter of IVC or its respiratory variations measured through US in predicting fluid responsiveness. DATA SOURCES: We searched in the MEDLINE (PubMed), Embase, Web of Science databases for all relevant articles from inception to September 2017. STUDY SELECTION: Included articles specifically addressed the accuracy of IVC diameter or its respiratory variations assessed by US in predicting the fluid responsiveness in critically ill ventilated or not, adult or pediatric patients. DATA EXTRACTION: We included 26 studies that investigated the role of the caval index (IVC collapsibility or distensibility) and 5 studies on IVC diameter. DATA SYNTHESIS: We conducted a meta-analysis for caval index with 20 studies: The pooled area under the curve, logarithmic diagnostic odds ratio, sensitivity, and specificity were 0.71 (95% confidence interval [CI]: 0.46-0.83), 2.02 (95% CI: 1.29-2.89), 0.71 (95% CI: 0.62-0.80), and 0.75 (95% CI: 0.64-0.85), respectively. CONCLUSION: An extreme heterogeneity of included studies was highlighted. Ultrasound evaluation of the diameter of the IVC and its respiratory variations does not seem to be a reliable method to predict fluid responsiveness. PMID- 29343171 TI - Prognosis of Acute Respiratory Distress Syndrome in Patients With Hematological Malignancies. AB - INTRODUCTION: The intensive care unit (ICU) admission of patients with hematologic malignancies is gradually increasing. Life-threatening events are common, and acute respiratory distress syndrome (ARDS) is one of the most critical conditions. The aim of this study was to investigate the clinical characteristics and outcomes of ARDS in patients with hematological malignancies admitted to the ICU. METHODS: A retrospective study was performed on all patients with ARDS with hematological malignancies in a single tertiary teaching hospital between 2008 and 2015. Data on the treatment of and the outcomes of ARDS were collected to determine the clinical characteristics associated with ICU mortality. RESULTS: During the 8-year study period, among a total of 821 patients with ARDS admitted to the ICU, all 185 patients with hematological malignancies were included in the analysis. Most of the patients (88.1%) had moderate-to severe ARDS, and the median PaO2/FiO2 ratio was 122 (interquartile range: 88 157). The overall ICU mortality rate was 57.3% (50.0% for mild, 52.0% for moderate, and 67.7% for severe ARDS). After the univariate and the multivariate logistic regressions, the factors independently associated with a higher ICU mortality were severe ARDS (odds ratio [OR]: 2.47; 95% confidence interval [CI]: 1.17-5.25), identification of carbapenem-resistant gram-negative bacteria (OR: 6.61; 95% CI: 1.31-33.41), the amount of blood product transfusion (OR: 1.25; 95% CI: 1.13-1.38), and the progressive or refractory disease (OR: 3.01; 95% CI: 1.31 6.91). Mortality was independently lower in patients who received the initial low tidal volume ventilation (OR: 0.37, 95% CI: 0.14-0.96). CONCLUSION: The outcome of ARDS in patients with hematological malignancies is associated with the severity of the underlying diseases, the presence of multidrug-resistance pathogens, and the amount of transfusion; however, strict application of low tidal volume ventilation may improve the outcome of these patients at the time of diagnosis. PMID- 29343172 TI - Quantification of brake data acquired with a brake power meter during simulated cross-country mountain bike racing. AB - There is currently a dearth of information describing cycling performance outside of propulsive and physiological variables. The aim of the present study was to utilise a brake power meter to quantify braking during a multi-lap cross-country mountain bike time trial and to determine how braking affects performance. A significant negative association was determined between lap time and brake power (800.8 +/- 216.4 W, mean +/- SD; r = -0.446; p < 0.05), while the time spent braking (28.0 +/- 6.4 s) was positively associated with lap time (314.3 +/- 37.9 s; r = 0.477; p < 0.05). Despite propulsive power decreasing after the first lap (p < 0.05), lap time remained unchanged (p > 0.05) which was attributed to decreased brake work (p < 0.05) and brake time (p < 0.05) in both the front and rear brakes by the final lap. A multiple regression model incorporating braking and propulsion was able to explain more of the variance in lap time (r2 = 0.935) than propulsion alone (r2 = 0.826). The present study highlights that riders' braking contributes to mountain bike performance. As riders repeat a cross country mountain bike track, they are able to change braking, which in turn can counterbalance a reduction in power output. Further research is required to understand braking better. PMID- 29343173 TI - Effects of two feedback interventions on end-of-life outcomes in nursing home residents with dementia: A cluster-randomized controlled three-armed trial. AB - BACKGROUND: Despite increased attention for palliative care in dementia, recent studies found burdensome symptoms and unmet family caregiver needs in the last phase of life. Feedback is being used to improve the quality of palliative care, but we do not know how effective it is. AIM: To assess the effect of two feedback strategies on perceived quality of end-of-life care and comfort in dying nursing home residents with dementia. METHODS: In a cluster-randomized controlled trial, the End-of-Life in Dementia-Satisfaction With Care and the End-of-Life in Dementia-Comfort Assessment in Dying scales were completed by bereaved family caregivers of residents with dementia of 18 Dutch nursing homes. Two feedback strategies, generic feedback with mean End-of-Life in Dementia-scores and feedback with individual (patient-specific) End-of-Life in Dementia-scores, were compared to no feedback provided. The intervention groups discussed End-of-Life in Dementia-ratings in team meetings and formulated actions to improve care. Multi-level analyses assessed effects. RESULTS: A total of 668 families rated the End-of-Life in Dementia-instruments. Compared to no feedback, the generic strategy resulted in lower quality of end-of-life care in unadjusted ( B = -1.65, confidence interval = -3.27; -0.21) and adjusted analyses ( B = -2.41, confidence interval = -4.07; -0.76), while there was no effect on comfort. The patient specific strategy did not affect the quality of end-of-life care, but it increased comfort in unadjusted analyses (only, B = 2.20, confidence interval = 0.15; 4.39; adjusted: B = 1.88, confidence interval = -0.34; 4.10). CONCLUSION: Neither feedback strategy improved end-of-life outcome. Perhaps, skills to translate the feedback into care improvement actions were insufficient. Feedback with favorable family ratings might even have triggered opposite effects. Trial number: NTR3942. PMID- 29343174 TI - Small Molecules for Neural Stem Cell Induction. AB - Generation of induced pluripotent stem cells (iPSCs) from other somatic cells has provided great hopes for transplantation therapies. However, these cells still cannot be used for clinical application due to the low reprogramming and differentiation efficiency beside the risk of mutagenesis and tumor formation. Compared to iPSCs, induced neural stem cells (iNSCs) are easier to terminally differentiate into neural cells and safe; thus, iNSCs hold more opportunities than iPSCs to treat neural diseases. On the other hand, recent studies have showed that small molecules (SMs) can dramatically improve the efficiency of reprogramming and SMs alone can even convert one kind of somatic cells into another, which is much safer and more effective than transcription factor-based methods. In this study, we provide a review of SMs that are generally used in recent neural stem cell induction studies, and discuss the main mechanisms and pathways of each SM. PMID- 29343175 TI - Activity-Based Goals Generated by Older Adults With Mild Cognitive Impairment. AB - Client-centered care is one promising rehabilitation model that may support the unique needs of older adults with mild cognitive impairment (MCI). This secondary analysis examined (a) whether older adults with MCI generated activity-based goals using a client-centered model and (b) the types of goals generated. Thirteen older adults with MCI addressed 55 goals. Using client-centered care, the participants generated goals despite subtle limitations in activities and participation. Participants generated the greatest number of goals related to instrumental activities of daily living. This study demonstrated that older adults with MCI generated goals through a client-centered model. This is important because older adults with MCI are at risk for disability, and they may benefit from early rehabilitation care models that minimize activity limitations and participation restrictions despite underlying cognitive impairments. PMID- 29343177 TI - Wide QRS alternans caused by propafenone toxicity. PMID- 29343176 TI - On understanding the nature of interpersonal conflict between coaches and athletes. AB - Conflict is a part of coach-athlete relationships and should be carefully considered as it can have effects on the quality of coaching and the level of performance. Despite its practical relevance, there is a dearth of research around coach-athlete conflict. Therefore, the current study aimed to explore the characteristics and topics of conflict, as well as coaches and athletes' emotional, cognitive and behavioural experiences during conflict. A total of 22 independent coaches and athletes participated in semi-structured interviews evolving around the nature of interpersonal conflict. After all interviews were transcribed, a deductive-inductive content analysis was conducted. This was guided by the interview schedule as well as the by the conceptual framework of conflict in sport relationships (Wachsmuth, Jowett, & Harwood, 2017). Data were divided into five main categories: Conflict characteristics and conflict topics, as well as conflict cognitions, emotions, and behaviours. Findings highlighted the variety of ways in which participants understood and interpreted interpersonal conflict and how their impressions of conflict influenced its evolving process. Considering the participants' cognitive, emotional and behavioural expressions of conflict, it became apparent that conflict can be described through uncertain, escalating and problem-orientated responses. Practical applications concerning (mal-) adaptive responses to conflict are discussed. (199/200). PMID- 29343178 TI - Impact of clinical pharmacists on atherosclerotic risk factor management in an integrated heart and vascular clinic. PMID- 29343179 TI - B-type natriuretic peptide for prediction of incident clinically significant abdominal aortic aneurysm: A population-based prospective study. AB - Pathogenesis of abdominal aortic aneurysm (AAA) is unclear. The aim of this study was to evaluate inflammatory and hemodynamic plasma biomarkers as predictors for AAA in the prospective longitudinal cohort of middle-aged individuals from the cardiovascular cohort of the Malmo Diet and Cancer Study ( n=5551; 1991-94). C reactive protein, cystatin C, copeptin, N-terminal pro-B-type natriuretic peptide (N-BNP), midregional pro-atrial natriuretic peptide (MR-proANP) and conventional risk factors at baseline were measured in patients with incident AAA during follow-up and compared to individuals without a diagnosis of AAA. Subjects were followed until 31 December 2013. Multivariable analyses were expressed in terms of hazard ratios (HR) per 1 standard deviation increment of each respective log transformed plasma biomarker in the Cox proportional hazard models. Mean follow up time was 20.7 years. Cumulative incidence of AAA was 1.5% (men 2.9%, women 0.5%). Mean age of individuals with incident AAA was 59.7 years at study entry and AAA was diagnosed on average 14 years later. Adjusting for age, sex, smoking, body mass index, hypertension and diabetes mellitus, N-BNP (HR 1.29; 95% CI 1.03 1.62), but not MR-proANP (HR 1.20; 95% CI 0.95-1.50), was independently associated with incident AAA. In conclusion, the plasma biomarker N-BNP was associated with future development of AAA, which implies that this marker is a sensitive indicator of early subclinical cardiovascular disease. PMID- 29343180 TI - Images in Vascular Medicine: Standing waves are not distinctive to conventional angiograms. PMID- 29343181 TI - Experiencing abortion rights in India through issues of autonomy and legality: A few controversies. AB - Abortion laws in India, like other laws, are premised on the 1861 British Penal Code. The Medical Termination of Pregnancy Act was passed in 1971 to circumvent the criminality clause around abortion. Yet the law continues to render invisible women's right to choose. Legal procedures have often hindered in permitting abortion, resulting in the death of a mother or the foetus. Despite the latest techno-medical advances, the laws have remained stagnant or rather restrictive, complicated further by selective female foetus abortions. Legal resistance to abortion-seeking after 20 weeks gestation adversely affects women, depriving them of autonomy of choice. In this paper, raising important gender, health and ethical issues are illustrated through a recent legal case in India. Feminist campaigns against the legal mindset in India are emerging. PMID- 29343182 TI - Fibronectin Enhances Cartilage Repair by Activating Progenitor Cells Through Integrin alpha5beta1 Receptor. AB - This study aimed to determine the effect of fibronectin (FN) on cartilage regeneration through the activation of chondrogenic progenitor cells (CPCs). Cells were isolated from the knee cartilage of mice and cultured in the presence of various concentrations of FN. Proliferation, migration, and chondrogenic differentiation assays were performed in vitro. In some experiments, CPCs were preincubated with anti-integrin alpha5beta1 antibody for 60 min before FN treatment to block the integrin alpha5beta1 receptor. Soluble FN was mixed with Pluronic F-127 and injected into the joint cavity in an early-stage osteoarthritis model. Cartilage repair was evaluated histologically, biochemically, and biomechanically. In vitro, we observed that the isolated CPCs, which exhibited stem cell-relevant markers, proliferated most at a concentration of 20 MUg/mL FN (p < 0.05). In addition, FN enhanced the proliferation, migration, and chondrogenic differentiation capacity of CPCs, and the enhancement was significantly decreased by blockade of the integrin alpha5beta1 receptor (p < 0.05). In vivo, FN also significantly promoted cartilage repair along with increased CPC activation and integrin alpha5beta1 expression (p < 0.05). These findings suggest that FN enhances CPC proliferation, migration, and chondrogenic differentiation through the integrin alpha5beta1-dependent signaling pathway. Based on these results, a novel and promising therapy focused on targeted activation of CPCs by FN could be developed for the treatment of cartilage injuries in a clinical setting. PMID- 29343183 TI - The acute angiogenic signalling response to low-load resistance exercise with blood flow restriction. AB - This study investigated protein kinase activation and gene expression of angiogenic factors in response to low-load resistance exercise with or without blood flow restriction (BFR). In a repeated measures cross-over design, six males performed four sets of bilateral knee extension exercise at 20% 1RM (reps per set = 30:15:15:continued to fatigue) with BFR (110 mmHg) and without (CON). Muscle biopsies were obtained from the vastus lateralis before, 2 and 4 h post-exercise. mRNA expression was determined using real-time RT-PCR. Protein phosphorylation/expression was determined using Western blot. p38MAPK phosphorylation was greater (p = 0.05) at 2 h following BFR (1.3 +/- 0.8) compared to CON (0.4 +/- 0.3). AMPK phosphorylation remained unchanged. PGC 1alpha mRNA expression increased at 2 h (5.9 +/- 1.3 vs. 2.1 +/- 0.8; p = 0.03) and 4 h (3.2 +/- 0.8 vs. 1.5 +/- 0.4; p = 0.03) following BFR exercise with no change in CON. PGC-1alpha protein expression did not change following either exercise. BFR exercise enhanced mRNA expression of vascular endothelial growth factor (VEGF) at 2 h (5.2 +/- 2.8 vs 1.7 +/- 1.1; p = .02) and 4 h (6.8 +/- 4.9 vs. 2.5 +/- 2.7; p = .01) compared to CON. mRNA expression of VEGF-R2 and hypoxia inducible factor 1alpha increased following BFR exercise but only eNOS were enhanced relative to CON. Matrix metalloproteinase-9 mRNA expression was not altered in response to either exercise. Acute low-load resistance exercise with BFR provides a targeted angiogenic response potentially mediated through enhanced ischaemic and shear stress stimuli. PMID- 29343184 TI - Foot strike pattern in preschool children during running: sex and shod-unshod differences. AB - PURPOSE: This study aims to determine the foot strike patterns (FSPs) and neutral support (no inversion [INV]/eversion [EVE] and no foot rotation) in preschool children, as well as to determine the influence of shod/unshod conditions and sex. METHODS: A total of 1356 children aged 3-6 years (673 boys and 683 girls) participated in this study. A sagittal and frontal-plane video (240 Hz) was recorded using a high-speed camcorder to record the following variables: rearfoot strike (RFS), midfoot strike (MFS), forefoot strike (FFS), inversion/ eversion (INV/EVE) and foot rotation on initial contact. RESULTS: There were no between sex significant differences in both shod and unshod conditions in RFS. In the unshod condition, there was a significant reduction (p < 0.001) of RFS prevalence in both boys (shod condition = 44.2% vs. 34.7% unshod condition) and girls (shod condition = 48.5% vs. 36.1% unshod condition). As for neutral support, there were no between-sex differences in both shod and unshod conditions or in the shod unshod comparison. CONCLUSION: In preschool children, no between-sex differences were found in relation to prevalence of RFS and neutral support (no INV/EVE). Shod running alters FSP of running barefoot, producing a significant increase of RFS prevalence. PMID- 29343185 TI - Exploring protein-protein intermolecular recognition between meprin-alpha and endogenous protease regulator cystatinC coupled with pharmacophore elucidation. AB - Meprins are a group of zinc metalloproteases of the astacin family which play a pivotal role in several physiological and pathologocal diseases. The inhibition of the meprins by various inhibitors, macromolecular and small molecules, is crucial in the control of several diseases. Human cystatinC, an amyloidogenic protein, is reported to be an endogenous inhibitor of meprin-alpha. In this computational study, we elucidate a rational model for meprinalpha-cystatinC complex using protein-protein docking. The complex model as well as the unbound form was evaluated by molecular dynamics simulation. A simulation study revealed higher stability of the complex owing to the presence of several interactions. Virtual alanine mutagenesis helps in identifying the hotspots on both proteins. Based on the frequency of occurrence of hotspot amino acids, it was possible to enumerate the important amino acids primarily responsible for protein stability present at the amino-terminal end of cystatin. Finally, pharmacophore elucidation carried out based on the information obtained from a series of small molecular inhibitors against meprin-alpha can be utilized in future for rational drug design and therapy. PMID- 29343186 TI - Association between palliative care and life-sustaining treatments for patients with dementia: A nationwide 5-year cohort study. AB - BACKGROUND: The association between palliative care and life-sustaining treatments for patients with dementia is unclear in Asian countries. AIM: To analyse the use of palliative care and its association with aggressive treatments based on Taiwanese national data. DESIGN: A matched cohort study was conducted. The association between intervention and outcome was evaluated using conditional logistic regression analyses. SETTING/PARTICIPANTS: The source population comprised 239,633 patients with dementia diagnosed between 2002 and 2013. We selected patients who received palliative care between 2009 and 2013 (the treatment cohort; N = 1996) and assembled a comparative cohort ( N = 3992) through 1:2 matching for confounding factors. RESULTS: After 2009, palliative care was provided to 3928 (1.64%) patients of the dementia population. The odds ratio for undergoing life-sustaining treatments in the treatment cohort versus the comparative cohort was <1 for most treatments (e.g. 0.41 for mechanical ventilation (95% confidence interval: 0.35-0.48)). The odds ratio was >1 for some treatments (e.g. 1.73 for tube feeding (95% confidence interval: 1.54-1.95)). Palliative care was more consistently associated with fewer life-sustaining treatments for those with cancer. CONCLUSIONS: Palliative care is related to reduced life-sustaining treatments for patients with dementia. However, except in the case of tube feeding, which tended to be provided alongside palliative care regardless of cancer status, having cancer possibly had itself a protective effect against the use of life-sustaining treatments. Modifying the eligibility criteria for palliative care in dementia, improving awareness on the terminal nature of dementia and facilitating advance planning for dementia patients may be priorities for health policies. PMID- 29343187 TI - Mechanical and antibacterial properties of benzothiazole-based dental resin materials. AB - A synthesized benzothiazole containing mono-methacrylate monomer BTTMA was incorporated into Bis-GMA/TEGDMA dental resin system with a series of mass concentration from 5 to 30 wt.% as an antibacterial agent. The influence of BTTMA on physicochemical properties of dental resin system, such as double bond conversion (DC), volumetric shrinkage (VS), flexural strength (FS) and modulus (FM), water sorption (WS) and solubility (SL) were investigated. Direct contact testing and agar diffusion testing were used to evaluate the antibacterial activity of BTTMA containing dental resin. The results showed that BTTMA could endow dental resin with significant antibacterial activity when its concentration reached a certain amount (20 wt.%), and the antibacterial activity of BTTMA containing dental resin was mainly attributed to the immobilized BTTMA instead of the unreacted leachable BTTMA. BTTMA had no negative effect on physicochemical properties of dental resin, and even some BTTMA containing dental resins had advantages like higher DC, lower VS and WS when compared with control resin. Therefore, BTTMA could be considered as a suitable antibacterial agent in dental material, but much more researches concerned about biocompatibility should be done in future to prove whether it could be applied in clinic. PMID- 29343188 TI - Technique selection in young female gymnasts: Elbow and wrist joint loading during the cartwheel and round-off. AB - Biophysical loading of the elbow and wrist is a potential reason for chronic lesions in gymnastics and present a real concern for coaches, scientist and clinicians. Previous research has identified injury risk factors during round-off (RO) skills in elite female gymnasts. The aim of this study was to investigate key elbow and wrist joint injury risk factors during different techniques of fundamental cartwheel (CW) and RO skills performed by young female artistic gymnasts. Seventeen active young female gymnasts performed 30 successful trials of both CW and RO from a hurdle step with three different hand positions (parallel (10), T-shape (10) and reverse (10)). Synchronised kinematic (240 Hz) and kinetic (1200 Hz) data were collected for each trial. One-way repeated measures ANOVA and effect size (ES) were used for statistical analysis. The results showed statistically significant differences (P < .05) and large ES (>0.8) among hand positions for peak vertical ground reaction force (VGRF), peak elbow compression force, peak wrist compression force, elbow internal adduction moment and wrist dorsiflexion angle. In conclusion, the parallel and reverse techniques increase peak VGRF, elbow and wrist compression forces, and elbow internal adduction moment. These differences indicate that the parallel and reverse techniques may increase the potential of elbow and wrist injuries in young gymnasts compared with the T-shape technique; this is of particular importance with the high frequency of the performance of these fundamental skills. PMID- 29343189 TI - Translating Ancient Alchemy: Fragments of Graeco-Egyptian Alchemy in Arabic Compendia. AB - Translation played a vital role in the development and transfer of alchemy in Antiquity and the Early Middle Ages. Since its origins in Graeco-Roman Egypt, alchemy was encapsulated in Greek texts which allegedly relied on Persian or Egyptian sources. Later, a variety of Greek and Byzantine writings were translated into Syriac and Arabic, and these translations were in turn fragmented and disseminated in later Arabic compendia. This paper will first review the main phases of this historical process of transmission of alchemy from one language and culture to another. Second, this process will be examined using two significant case studies: a close analysis of various quotations from Graeco Egyptian authors (Pseudo-Democritus, Zosimus of Panopolis, and Synesius) as presented in two Arabic dialogues on alchemy, The Tome of Images and The Dialogue between Aras and the King Caesar. These sources demonstrate some of the concrete textual realities that underlie general patterns of translation and reception. PMID- 29343190 TI - Factors affecting effective ventilation during newborn resuscitation: a qualitative study among midwives in rural Tanzania. AB - BACKGROUND: Intrapartum-related hypoxia accounts for 30% of neonatal deaths in Tanzania. This has led to the introduction and scaling-up of the Helping Babies Breathe (HBB) programme, which is a simulation-based learning programme in newborn resuscitation skills. Studies have documented ineffective ventilation of non-breathing newborns and the inability to follow the HBB algorithm among providers. OBJECTIVE: This study aimed at exploring barriers and facilitators to effective bag mask ventilation, an essential component of the HBB algorithm, during actual newborn resuscitation in rural Tanzania. METHODS: Eight midwives, each with more than one year's working experience in the labour ward, were interviewed individually at Haydom Lutheran Hospital, Tanzania. The audio recordings were transcribed and translated into English and analysed using qualitative content analysis. RESULTS: Midwives reported the ability to monitor labour properly, preparing resuscitation equipment before delivery, teamwork and frequent ventilation training as the most effective factors in improving actual ventilation practices and promoting the survival of newborns. They thought that their anxiety and fear due to stress of ventilating a non-breathing baby often led to poor resuscitation performance. Additionally, they experienced difficulties assessing the baby's condition and providing appropriate clinical responses to initial interventions at birth; hence, further necessary actions and timely initiation of ventilation were delayed. CONCLUSIONS: Efforts should be focused on improving labour monitoring, birth preparedness and accurate assessment immediately after birth, to decrease intrapartum-related hypoxia. Midwives should be well prepared to treat a non-breathing baby through high quality and frequent simulation training with an emphasis on teamwork training. PMID- 29343191 TI - Thermophilic xylanases: from bench to bottle. AB - Lignocellulosic biomass is a valuable raw material. As technology has evolved, industrial interest in new ways to take advantage of this raw material has grown. Biomass is treated with different microbial cells or enzymes under ideal industrial conditions to produce the desired products. Xylanases are the key enzymes that degrade the xylosidic linkages in the xylan backbone of the biomass, and commercial enzymes are categorized into different glycoside hydrolase families. Thermophilic microorganisms are excellent sources of industrially relevant thermostable enzymes that can withstand the harsh conditions of industrial processing. Thermostable xylanases display high-specific activity at elevated temperatures and distinguish themselves in biochemical properties, structures, and modes of action from their mesophilic counterparts. Natural xylanases can be further improved through genetic engineering. Rapid progress with genome editing, writing, and synthetic biological techniques have provided unlimited potential to produce thermophilic xylanases in their natural hosts or cell factories including bacteria, yeasts, and filamentous fungi. This review will discuss the biotechnological potential of xylanases from thermophilic microorganisms and the ways they are being optimized and produced for various industrial applications. PMID- 29343192 TI - Coverage and outcomes of antenatal tests for infections: a population based survey in the Province of Trento, Italy. AB - BACKGROUND: Rubella, syphilis, toxoplasmosis, cytomegalovirus (CMV), hepatitis B (HBV) and C (HCV), HIV, and Group B Streptococcus (GBS) infections may have very severe outcomes during pregnancy, and for this reason, monitoring of infections in pregnant women is a requirement of prenatal assistance. AIMS: To describe coverage and outcome of the screening for rubella, syphilis, toxoplasmosis, CMV, HBV, HCV, HIV, and Group B Streptococcus in pregnancy in the Autonomous Province of Trento, Northern Italy (538,600 inhabitants). METHODS: We analysed the coverage and outcome of the above-mentioned screenings among women who delivered in the hospitals of the Province of Trento between 2007 and 2014 (N = 38,712). Screenings were grouped according to characteristics such as recommendation by national and local guidelines, scheduling of the tests, operating methods, and charge. We also estimated odds ratios (ORs) for missing screening for selected infections through multiple logistic regression. RESULTS: Estimated uptake of antenatal screening was 99.7% for rubella, 99.3% for syphilis, 99.7% for toxoplasmosis, 98.1% for HIV infection, 99.0% for HBV, 98.9% for HCV, 94.0% for GBS infection, and 75.4% for CMV infection. The overall prevalence of immunity was 94.1% for rubella, 24.2% for toxoplasmosis, and 64.2% for CMV. The rate of seroconversion in pregnant women was 0.02% for rubella, 0.29% for toxoplasmosis, and 0.75% for CMV. The overall prevalence of infection was 0.94% for HBV, 0.53% for HCV, 22.3% for GBS, 0.29% for syphilis, and 0.13% for HIV. We found a significant positive association for all screening tests, between lack of testing and late first medical examination in pregnancy (ORs ranging from 1.20 to 1.66 for the first medical visit in the second trimester and ORs ranging from 1.60 to 5.88 for the first medical visit in third trimester, compared to early medical visit in the first trimester). Compared to Italian citizenship, foreign citizenship of the mother was also positively associated with absence of screening (ORs ranging from 1.30 to 1.53). A significant inverse association was observed for calendar year of delivery (ORs ranging from 0.71 to 0.97, for 1 year increment). Less educated mothers and pluriparae were also at higher risks of not being tested. Analysis of the association with mother age showed different heterogeneous effects. CONCLUSIONS: Our study indicates that the attention to screening and detecting infected cases is growing over the time. In addition, care delivered during pregnancy has a leading role in determining coverage of the examinations. Immigrant, pluriparous and less educated women need particular attention. PMID- 29343193 TI - Perinatal sclerostin concentrations in abnormal fetal growth: the impact of gestational diabetes. AB - OBJECTIVE: To prospectively evaluate maternal and cord blood concentrations of sclerostin - an osteocyte-secreted factor, inhibiting osteoblast differentiation and bone formation and associated with adverse metabolism - in pregnancies with normal and abnormal fetal growth. METHODS: Plasma sclerostin concentrations were determined by ELISA in 80 maternal and 80 cord blood samples from asymmetric intrauterine-growth-restricted (IUGR, n = 30), large-for-gestational-age (LGA, n = 30), and appropriate-for-gestational-age (AGA, n = 20) singleton full-term pregnancies. Fourteen out of 30 mothers with LGA offspring presented with gestational diabetes mellitus (GDM). RESULTS: Maternal and fetal sclerostin concentrations did not differ among LGA, IUGR, and AGA groups. Fetal concentrations were higher than maternal. In LGA group, maternal concentrations were elevated in cases of GDM (b = 13.009, 95%CI 1.425-24.593, p = .029). In a combined group and the IUGR group, maternal concentrations were elevated in older mothers (b = 0.788, 95%CI 0.190-1.385, p = .010, and b = 0.740, 95%CI 0.042 1.438, p = .039, respectively). CONCLUSIONS: Maternal and fetal sclerostin concentrations may not be differentially regulated in pregnancies complicated by abnormal fetal growth. Circulating maternal levels are higher in cases of GDM, probably implying reduced bone formation. Sclerostin up-regulation with aging may be one of the molecular pathways responsible for the observed age-related decline in bone synthesis, leading to accelerated bone loss in humans. PMID- 29343194 TI - A brain impact stress analysis using advanced discretization meshless techniques. AB - This work has the objective to compare the mechanical behaviour of a brain impact using an alternative numerical meshless technique. Thus, a discrete geometrical model of a brain was constructed using medical images. This technique allows to achieve a discretization with realistic geometry, allowing to define locally the mechanical properties according to the medical images colour scale. After defining the discrete geometrical model of the brain, the essential and natural boundary conditions were imposed to reproduce a sudden impact force. The analysis was performed using the finite element analysis and the radial point interpolation method, an advanced discretization technique. The results of both techniques are compared. When compared with the finite element analysis, it was verified that meshless methods possess a higher convergence rate and that they are capable of producing smoother variable fields. PMID- 29343195 TI - Caring for a family member or friend with dementia at the end of life: A scoping review and implications for palliative care practice. AB - BACKGROUND: Although people with dementia receive substantial care from informal sources, there is limited research available that investigates how these carers experience end-of-life care. AIM: This review aimed to identify what is currently known about carers' experiences of providing end-of-life care to a family member or friend with dementia and draw implications for palliative care policy and service provision. DESIGN: A scoping literature review was conducted, first using a targeted key word search, followed by assessments of eligibility based on title and then abstract content. DATA SOURCES: Records were sourced through PsycINFO, PubMed and CINAHL databases. Peer-reviewed papers published between 2000 and 2016, reporting on data collected directly from carers, were included for review. RESULTS: Carers' experience centred on relationships (with care recipients, family and friends and health care professionals) and the specific context of caring for someone with dementia. These broad categories of carers' experiences had clear influences on them personally, particularly in relation to their sense of self and their wellbeing. CONCLUSION: Palliative care services would benefit from ensuring holistic approaches to supporting people with dementia, their carers and wider family networks. Tailoring services to the specific context of dementia would enable effective, personalised support throughout extended periods leading up to care recipient death as well as through the challenges faced beyond bereavement. PMID- 29343196 TI - Plexiform Vasculopathy in Feline Cervical Lymph Nodes. AB - Plexiform vasculopathy refers to an endothelial proliferative disorder affecting cervical or inguinal lymph nodes of cats. The cause of this disorder and the origin of the proliferating endothelial cells are still unknown. In 4 cats with a history of a slowly growing, well-demarcated, nonpainful mass adjacent to the thyroid gland, an enlarged dark brown to red lymph node was removed. Histologically, the lymph nodes showed severe loss of lymphoid tissue with accumulations of erythrocytes. In addition, networks of capillary structures with well-differentiated endothelial cells on a collagen-rich stroma were observed, consistent with benign plexiform vasculopathy. Immunohistochemistry revealed the expression of the vascular endothelial markers CD31 and factor VIII-related antigen. In addition, immunolabeling with a Prox-1 antibody indicated a lymphendothelial origin. With respect to our findings, a lymphendothelial origin has to be considered in cases of intranodal vascular neoplasms. PMID- 29343197 TI - Coexpression of CD3 and CD20 in Canine Enteropathy-Associated T-cell Lymphoma. AB - The majority of primary intestinal lymphomas in dogs are T-cell lymphomas, with enteropathy-associated T-cell lymphoma (EATL) large cell type (type 1) being the most common. While most T-cell lymphomas express the T-cell marker CD3, there is increasing evidence that some human and canine T-cell lymphomas coexpress the B cell marker CD20. We describe 3 cases of CD3+, CD20+, Pax5- EATL type 1 in dogs. All 3 cases had clonal rearrangement of T-cell receptor gamma. Initial clinical signs included weight loss, inappetence, diarrhea, and/or vomiting. The mean age was 9 years (range 3-12). Survival was highly variable ranging from 20 days to longer than 1.6 years. Considering the different chemotherapeutic response of T cell versus B-cell lymphomas, accurate diagnosis of lymphomas coexpressing CD3 and CD20 as EATL type 1 based on histologic features and clonality results is important. Regardless, the clinical and/or prognostic significance of neoplastic T cells expressing CD20 is unclear. PMID- 29343198 TI - Localization of Felis catus Papillomavirus Type 2 E6 and E7 RNA in Feline Cutaneous Squamous Cell Carcinoma. AB - Findings from polymerase chain reaction-based methods have suggested a role of Felis catus papillomavirus 2 (FcaPV-2) in the development of feline cutaneous squamous cell carcinoma (SCC). However, because polymerase chain reaction cannot localize deoxyribonucleic acid or ribonucleic acid within the lesion, it is difficult to differentiate a coincidental FcaPV-2 infection and a causative association. Given that a key event in the pathogenesis of human papillomavirus induced cancer is the expression of viral E6 and E7 oncogenes, localization of FcaPV-2 E6 and E7 transcription within neoplastic cells in feline SCCs would support a causative role for this papillomavirus. Therefore, RNAscope in situ hybridization was used to localize FcaPV-2 E6 and E7 transcripts in 18 formalin fixed paraffin-embedded samples of cutaneous SCC. Positive signals were present within 5 of 9 samples (56%) from ultraviolet-protected sites and 0 of 9 samples from ultraviolet-exposed sites. In the 4 in situ hybridization-positive samples that contained adjacent hyperplastic skin, hybridization patterns in these regions were characterized by intense nuclear signals within the superficial epidermis and punctate signals within the basal epithelial layers. However, within the 5 SCCs, punctate signals were present within all layers of the epidermis, with progressive loss of intense nuclear signals within the superficial epidermis. This hybridization pattern is consistent with unregulated E6 and E7 transcription and decreased viral replication and is similar to the pattern observed in human papillomavirus-induced cancers as they progress from hyperplastic lesions containing productive infections to nonproductive neoplasms. These findings support a causative role for FcaPV-2 in the pathogenesis of feline SCC. PMID- 29343199 TI - CD204-Expressing Tumor-Associated Macrophages Are Associated With Malignant, High Grade, and Hormone Receptor-Negative Canine Mammary Gland Tumors. AB - Tumor-associated macrophages (TAMs) are an important component of leukocyte infiltration in tumors. TAMs can be classified into M1 and M2 phenotypes. In the present study, the expression of CD204, an M2-polarized macrophage receptor, was investigated by immunohistochemistry in the area surrounding TAMs in 101 cases of canine mammary gland tumor (CMT). We examined the relationship between M2 polarized TAMs and malignancy, histological subtype, histological grade, molecular subtype, hormone receptor (HR) status, and clinical obesity indices. The mean number of CD204-positive macrophages was significantly higher in malignant CMTs than in benign CMTs ( P = .000). The number of CD204-positive macrophages differed significantly between histological grades ( P = .000) and were significantly higher in grade III than in grades I and II. Moreover, the mean number of CD204-positive macrophages was significantly higher in HR-negative malignant CMTs than in HR-positive malignant CMTs ( P = .035) and in malignant CMTs with lymphatic invasion compared to malignant CMTs without lymphatic invasion ( P = .000). These findings suggest that CD204-positive macrophages might affect the development and behavior of CMTs and highlight the potential of CD204 as a prognostic factor. PMID- 29343200 TI - Immunohistochemical Expression of CD31 (PECAM-1) in Nonendothelial Tumors of Dogs. AB - CD31 immunoreactivity has been reported in human nonendothelial tumors of both epithelial and mesenchymal origin. This study examined CD31 immunoreactivity of 347 formalin-fixed, paraffin-embedded normal, nonneoplastic, and neoplastic canine tissues. CD31 expression was considered positive if at least 10% of the cell population had membranous reactivity. Labeling with the CD31 antibody (clone JC/70A) was observed in 16 samples of normal organs (liver, kidney, lymph node), 6 of 6 specimens of hepatic nodular hyperplasia, 3 of 3 hepatic regenerative nodules, 1 of 4 anal sac carcinomas, 6 of 6 hemangiosarcomas, 18 of 20 hepatocellular carcinomas, 1 of 6 mammary carcinomas, 3 of 5 plasmacytomas, 18 of 53 renal cell carcinomas, and 1 of 5 cutaneous histiocytomas. CD31 expression did not correlate with case outcome in hepatocellular or renal cell carcinomas. Although distinguishing hemangiosarcoma from other neoplasms is typically straightforward, pathologists should be aware of potential cross-reactivity when relying on CD31 immunohistochemistry for diagnosis, particularly in small biopsy samples or when faced with an epithelioid or poorly differentiated vascular neoplasm. PMID- 29343201 TI - The impact of blackcurrant juice on attention, mood and brain wave spectral activity in young healthy volunteers. AB - There is a growing body of evidence from randomized controlled trials which indicates that consumption of berries has a positive effect upon the cognitive function of healthy adults. It has been recommended that studies combining cognitive and physiological measures be undertaken in order to strengthen the evidence base for the putative effects of flavonoid consumption on cognitive outcomes. This pilot study utilized a randomized, double-blind and placebo controlled crossover design to assess the influence of the acute administration of anthocyanin-rich blackcurrant juice, standardized at 500 mg of polyphenols, on mood and attention. Additionally, this trial used electroencephalography (EEG) to assess if any changes in cognitive performance are associated with changes in localized prefrontal cortex neuronal activity in nine healthy young adults. Outcomes from the pilot EEG data highlight an anxiolytic effect of the consumption of a single serve blackcurrant juice, as indexed by a suppression of alpha spectral power, and an increase in the slow wave delta and theta spectral powers. There was also an indication of greater alertness and lower fatigue, as indexed by an increase in beta power and suppression of alpha spectral power. Outcomes from the CogTrackTM system indicated a small acute increase in reaction times during the digit vigilance task. PMID- 29343202 TI - Pillars of wisdom: ankylosing spondylitis in pocket format from the master. PMID- 29343203 TI - Cognition, Health-Related Quality of Life, and Depression Ten Years after Moderate to Severe Traumatic Brain Injury: A Prospective Cohort Study. AB - The aim of this study was to evaluate cognitive function 10 years after moderate severe traumatic brain injury (TBI) and to investigate the associations among cognitive function, depression, and health-related quality of life (HRQoL). In this prospective cohort study, with measurements at 3, 6, 12, 18, 24, 36, and 120 months post-TBI, patients 18-67 years of age (n = 113) with moderate-severe TBI were recruited. Main outcome measures were depression (Center for Epidemiologic Studies-Depression Scale [CES-D]), subjective cognitive functioning (Cognitive Failure Questionnaire [CFQ]), objective cognitive functioning, and HRQoL (Medical Outcomes Study 36-Item Short Form Health Survey [SF-36]). Fifty of the initial 113 patients completed the 10 year follow-up. Twenty percent showed symptoms of depression (CES-D >= 16). These patients had more psychiatric symptoms at hospital discharge (p = 0.048) and were more often referred to rehabilitation or nursing homes (p = 0.015) than non-depressed patients. Further, they also had significantly lower scores in six of the eight subdomains of the SF-36. The non depressed patients had equivalent scores to those of the Dutch norm-population on all subdomains of the SF-36. Cognitive problems at hospital discharge were related with worse cognitive outcome 10 years post-TBI, but not with depression or HRQoL. Ten years after moderate-severe TBI, only weak associations (p < 0.05) between depression scores and two objective cognitive functioning scores were found. However, there were moderate associations (p < 0.01) among depression scores, HRQoL, and subjective cognitive functioning. Therefore, signaling and treatment of depressive symptoms after moderate-severe TBI may be of major importance for optimizing HRQoL in the long term. We did not find strong evidence for associations between depression and objective cognitive functioning in the long term post-TBI. Disease awareness and selective dropping out may play a role in long-term follow-up studies in moderate-severe TBI. More long-term research is needed in this field. PMID- 29343204 TI - Automatic Intracranial Segmentation: Is the Clinician Still Needed? AB - INTRODUCTION: Stereotactic hypofractionated radiotherapy is an effective treatment for brain metastases in oligometastatic patients. Its planning is however time-consuming because of the number of organs at risk to be manually segmented. This study evaluates 2 automated segmentation commercial software. METHODS: Patients were scanned in the treatment position. The computed tomography scan was registered on a magnetic resonance imaging and volumes were manually segmented by a clinician. Then 2 automated segmentations were performed (with iPlan and Smart Segmentation). RT STRUCT files were compared with Aquilab's Artistruct segment comparison module. We selected common segmented volume ratio as the main judging criterion. Secondary criteria were Dice-Sorensen coefficients, overlap ratio, and additional segmented volume. RESULTS: Twenty consecutive patients were included. Agreement between manual and automated contouring was poor. Common segmented volumes ranged from 7.71% to 82.54%, Dice Sorensen coefficient ranged from 0.0745 to 0.8398, overlap ratio ranged from 0.0414 to 0.7275, and additional segmented volume ranged from 9.80% to 92.25%. Each software outperformed the other on some organs while performing worse on others. CONCLUSION: No software seemed clearly better than the other. Common segmented volumes were much too low for routine use in stereotactic hypofractionated brain radiotherapy. Manual editing is still needed. PMID- 29343205 TI - A Network Meta-Analysis on the Diagnostic Value of Different Imaging Methods for Lymph Node Metastases in Patients With Cervical Cancer. AB - PURPOSE: We performed this network meta-analysis to compare the diagnostic value of 4 imaging methods (magnetic resonance imaging, positron emission tomography, computed tomography, and diffusion-weighted imaging) for diagnosing lymph node metastases in cervical cancer. METHOD: Diagnostic tests regarding different imaging methods to diagnose lymph node metastases in cervical cancer were retrieved from the Cochrane Library, PubMed, and Embase electronic databases from inception to December 2016. Direct and indirect evidence was performed to calculate the odds ratio and to draw the surface under the cumulative ranking curves of the 4 imaging methods for diagnosing lymph node metastases in cervical cancer. RESULTS: Sixteen eligible diagnostic tests were included in this network meta-analysis. The results of network meta-analysis demonstrate that in comparison with the diffusion-weighted imaging, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio of positron emission tomography were relatively higher. Additionally, the results further indicate that compared with other diagnosis method, positive likelihood ratio, negative likelihood ratio, and diagnostic odds ratio of positron emission tomography had a higher trend. The surface under the cumulative ranking curve results indicated that in terms of positive likelihood ratio and diagnostic odds ratio, positron emission tomography had a relatively higher diagnostic value for lymph node metastases in patients with cervical cancer. CONCLUSION: Our findings indicate that positron emission tomography might have a relatively higher diagnostic value for lymph node metastases in patients with cervical cancer. PMID- 29343206 TI - Line-Enhanced Deformable Registration of Pulmonary Computed Tomography Images Before and After Radiation Therapy With Radiation-Induced Fibrosis. AB - PURPOSE: The deformable registration of pulmonary computed tomography images before and after radiation therapy is challenging due to anatomic changes from radiation fibrosis. We hypothesize that a line-enhanced registration algorithm can reduce landmark error over the entire lung, including the irradiated regions, when compared to an intensity-based deformable registration algorithm. MATERIALS: Two intensity-based B-spline deformable registration algorithms of pre-radiation therapy and post-radiation therapy images were compared. The first was a control intensity-based algorithm that utilized computed tomography images without modification. The second was a line enhancement algorithm that incorporated a Hessian-based line enhancement filter prior to deformable image registration. Registrations were evaluated based on the landmark error between user-identified landmark pairs and the overlap ratio. RESULTS: Twenty-one patients with pre radiation therapy and post-radiation therapy scans were included. The median time interval between scans was 1.2 years (range: 0.3-3.3 years). Median landmark errors for the line enhancement algorithm were significantly lower than those for the control algorithm over the entire lung (1.67 vs 1.83 mm; P < .01), as well as within the 0 to 5 Gy (1.40 vs 1.57; P < .01) and >5 Gy (2.25 vs 3.31; P < .01) dose intervals. The median lung mask overlap ratio for the line enhancement algorithm (96.2%) was greater than that for the control algorithm (95.8%; P < .01). Landmark error within the >5 Gy dose interval demonstrated a significant inverse relationship with post-radiation therapy fibrosis enhancement after line enhancement filtration (Pearson correlation coefficient = -0.48; P = .03). CONCLUSION: The line enhancement registration algorithm is a promising method for registering images before and after radiation therapy. PMID- 29343207 TI - Genome-Wide Analysis Identified a Number of Dysregulated Long Noncoding RNA (lncRNA) in Human Pancreatic Ductal Adenocarcinoma. AB - BACKGROUND: Long noncoding RNAs have been shown to play crucial roles in cancer biology, while the long noncoding RNA landscapes of pancreatic ductal adenocarcinoma have not been completely characterized. We aimed to determine whether long noncoding RNA could serve as early diagnostic biomarkers for pancreatic ductal adenocarcinoma. METHOD: We conducted a genome-wide microarray analysis on pancreatic ductal adenocarcinoma and their adjacent noncancerous tissues from 8 Chinese patients. RESULTS: A total of 3352 significantly differentially expressed long noncoding RNAs were detected. Of total, 1249 long noncoding RNAs were upregulated and 2103 were downregulated (fold change >=2, P < 0.05, FDR <0.05). These differentially expressed long noncoding RNAs were not evenly distributed among chromosomes in human genome. Hierarchical clustering of these differentially expressed long noncoding RNAs revealed large variabilities in long noncoding RNA expression among individual patient, indicating that certain long noncoding RNAs could play a unique role or be used as a biomarker for specific subtype of pancreatic ductal adenocarcinoma. Gene Ontology enrichment and pathway analysis identified several remarkably dysregulated pathways in pancreatic ductal adenocarcinoma tissue, such as interferon-gamma mediated signaling pathway, mitotic cell cycle and proliferation, extracellular matrix receptor interaction, focal adhesion, and regulation of actin cytoskeleton. The co-expression network analysis detected 393 potential interactions between 80 differentially expressed long noncoding RNAs and 105 messenger RNAs. We experimentally verified 7 most markedly dysregulated long noncoding RNAs from the network. CONCLUSION: Our study provided a genome-wide survey of dysregulated long noncoding RNAs and long noncoding RNA/messenger RNA co-regulation networks in pancreatic ductal adenocarcinoma tissue. These dysregulated long noncoding RNA/messenger RNA networks could be used as biomarkers to provide early diagnosis of pancreatic ductal adenocarcinoma or its subtype, predict prognosis, and evaluate treatment efficacy. PMID- 29343208 TI - Lapatinib Inhibits Breast Cancer Cell Proliferation by Influencing PKM2 Expression. AB - Pyruvate kinase type M2, which is expressed in multiple tumor cell types and plays a key role in aerobic glycolysis, also has nonglycolytic functions and can regulate transcription and cell proliferation. The results of this study show that epidermal growth factor receptor activation induces pyruvate kinase type M2 nuclear translocation. To further determine the relationship between pyruvate kinase type M2 and epidermal growth factor receptor, we analyzed pathological data from mammary glands and performed epidermal growth factor receptor/human epidermal growth factor receptor 2 knockdown to reveal that pyruvate kinase type M2 is associated with epidermal growth factor receptor and human epidermal growth factor receptor 2. Lapatinib is a small molecule epidermal growth factor receptor tyrosine kinase inhibitor that can inhibit epidermal growth factor receptor and human epidermal growth factor receptor 2, though its effect on pyruvate kinase type M2 remains elusive. Accordingly, we performed Western blotting and reverse transcription polymerase chain reaction and analyzed pathological data from mammary glands, with results suggesting that lapatinib inhibits pyruvate kinase type M2 expression. We further found that the antitumor drug lapatinib inhibits breast cancer cell proliferation by influencing pyruvate kinase type M2 expression, as based on Cell Counting Kit-8 analyses and pyruvate kinase type M2 overexpression experiments. Signal transducer and activator of transcription 3, which is a transcription factor-associated cell proliferation and the only transcription factor that interacts with pyruvate kinase type M2, we performed pyruvate kinase type M2 knockdown experiments in Human breast cancer cells MDA-MB 231 and Human breast cancer cells SK-BR-3 cell lines and examined the effect on levels of Signal transducer and activator of transcription 3 and phosphorylated Signal transducer and activator of transcription 3. The results indicate that pyruvate kinase type M2 regulates Signal transducer and activator of transcription 3 and phospho-Stat3 (Tyr705) expression. Together with previous reports, our findings show that lapatinib inhibits breast cancer cell proliferation by influencing pyruvate kinase type M2 expression, which results in a reduction in both Signal transducer and activator of transcription 3 and phosphorylated Signal transducer and activator of transcription 3. PMID- 29343210 TI - Prediction of structural consequences for disease causing variants in C21orf2 protein using computational approaches. AB - Amyotrophic lateral sclerosis (ALS), a progressive motor-neurone disease, affects individuals usually aged between 50 and 70 years. C21orf2, recently identified as the new ALS susceptibility gene, harbours rare missense mutations that cause this fatal disease. We used bioinformatics and molecular modelling approaches to study specific ALS-associated mutations in C21orf2. Both native and mutant structures of the protein obtained from homology modelling were analysed in detail to gain insights into the potential impact of these mutations on the protein structure and its function. Our analyses reveal that more than 75% of the mutations are likely to be deleterious. These effects seem to carry through to mouse C21orf2 as well, indicating that mouse would make a viable animal model to study this ALS gene in detail. PMID- 29343209 TI - Mild Blast Injury Produces Acute Changes in Basal Intracellular Calcium Levels and Activity Patterns in Mouse Hippocampal Neurons. AB - Mild traumatic brain injury (mTBI) represents a serious public health concern. Although much is understood about long-term changes in cell signaling and anatomical pathologies associated with mTBI, little is known about acute changes in neuronal function. Using large scale Ca2+ imaging in vivo, we characterized the intracellular Ca2+ dynamics in thousands of individual hippocampal neurons using a repetitive mild blast injury model in which blasts were directed onto the cranium of unanesthetized mice on two consecutive days. Immediately following each blast event, neurons exhibited two types of changes in Ca2+ dynamics at different time scales. One was a reduction in slow Ca2+ dynamics that corresponded to shifts in basal intracellular Ca2+ levels at a time scale of minutes, suggesting a disruption of biochemical signaling. The second was a reduction in the rates of fast transient Ca2+ fluctuations at the sub-second time scale, which are known to be closely linked to neural activity. Interestingly, the blast-induced changes in basal Ca2+ levels were independent of the changes in the rates of fast Ca2+ transients, suggesting that blasts had heterogeneous effects on different cell populations. Both types of changes recovered after ~1 h. Together, our results demonstrate that mTBI induced acute, heterogeneous changes in neuronal function, altering intracellular Ca2+ dynamics across different time scales, which may contribute to the initiation of longer-term pathologies. PMID- 29343211 TI - PAX6 Alternative Splicing and Corneal Development. AB - Paired box protein 6 (PAX6) is a master regulator of the eye development. Over the last past two decades, our understanding of eye development, especially the molecular function of PAX6, has focused on transcriptional control of the Pax6 expression. However, other regulatory mechanisms for gene expression, including alternative splicing (AS), have been understudied in the eye development. Recent findings suggest that two PAX6 isoforms generated by AS of Pax6 pre-mRNA may play previously underappreciated role(s) during eye development, especially, the corneal development. PMID- 29343212 TI - Clinical Characteristics of Subtypes of Follicular Variant Papillary Thyroid Carcinoma. AB - BACKGROUND: Among follicular variant papillary thyroid carcinomas (FVPTCs), the noninvasive encapsulated subtype has an excellent prognosis. For this reason, reclassification of noninvasive encapsulated FVPTC (EFVPTC) as a new entity called "noninvasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) has been proposed, but controversy remains. To characterize noninvasive EFVPTC in an Asian population, the clinicopathologic features of each FVPTC subtype were compared in a Korean population. METHODS: FVPTC patients (n = 142) who underwent thyroidectomy between 2009 and 2014, and whose tumor size was >1 cm, were included in the study. The surgical pathology of each patient was reevaluated by two independent expert pathologists. RESULTS: The percentages of noninvasive and invasive EFVPTC and infiltrative FVPTC (IFVPTC) in the study were 30%, 31%, and 39%, respectively. There was no difference in preoperative cytological diagnosis or the extent of surgery between noninvasive and invasive EFVPTC. However, the proportion of Bethesda category IV was lower in IFVPTC (16%) than in noninvasive and invasive EFVPTC (35% and 36%, respectively). Therefore, thyroid lobectomy was more common in noninvasive or invasive EFVPTC (54% or 48%, respectively) than in IFVPTC (16%). Noninvasive EFVPTC showed lower multiplicity, extrathyroidal extension, and BRAFV600E mutation frequency (three cases; 8%) than did invasive EFVPTC, but other pathological characteristics were similar. However, IFVPTC showed significant differences in tumor size, extrathyroidal extension, lymph node metastasis, Tumor Node Metastasis stage, and American Thyroid Association high-risk category compared with noninvasive and invasive EFVPTC. In the noninvasive EFVPTC group, there were six (14%) cases with multifocality and three (7%) cases with lymph node metastasis. However, only two cases with multifocality and one case with lymph node metastasis originated from noninvasive FVPTC, while the other cases were from coexisting conventional PTCs. CONCLUSIONS: Noninvasive EFVPTC has favorable pathological features, but lymph node metastasis or BRAFV600E mutations were observed in some patients. Therefore, in order for the distinction between noninvasive EFVPTC and invasive EFVPTC to have more clinical significance, the criteria for NIFTP need to be more strictly revised. PMID- 29343213 TI - The community is just a small circle: citizen participation in the free maternal and child healthcare programme of Enugu State, Nigeria. AB - BACKGROUND: There is a gap in knowledge about how citizen participation impacts governance of free healthcare policies for universal health coverage in low- and middle-income countries. OBJECTIVE: This study provides evidence about how social accountability initiatives influenced revenue generation, pooling and fund management, purchasing and capacity of health facilities implementing the free maternal and child healthcare programme (FMCHP) in Enugu State, Nigeria. METHODS: The study adopted a descriptive, qualitative case-study design to explore how social accountability influenced implementation of the FMCHP at the state level and in two health districts (Isi-Uzo and Enugu Metropolis) in Enugu State. Data were collected from policymakers (n = 16), providers (n = 16) and health facility committee leaders (n = 12) through in-depth interviews. We also conducted focus group discussions (n = 4) with 42 service users and document review. Data were analysed using thematic analysis. RESULTS: It was found that health facility committees (HFCs) have not been involved in the generation of funds, fund management and tracking of spending in FMCHP. The HFCs did not also seem to have increased transparency of benefits and payment of providers. The HFCs emerged as the dominant social accountability initiative in FMCHP but lacked power in the governance of free health services. The HFCs were constrained by weak legal framework, ineffectual FMCHP committees at the state and district levels, restricted financial information disclosure, distrustful relationships with policymakers and providers, weak patient complaint system and low use of service charter. CONCLUSION: The HFCs have not played a significant role in health financing and service provision in FMCHP. The gaps in HFCs' participation in health financing functions and service delivery need to be considered in the design and implementation of free maternal and child healthcare policies that aim to achieve universal health coverage. PMID- 29343214 TI - Establishing a genetic link between FTO and VDR gene polymorphisms and obesity in the Emirati population. AB - BACKGROUND: Obesity is a metabolic disease that is widely prevalent with approximately 600 million people classified as obese worldwide. Its etiology is multifactorial and involves a complex interplay between genes and the environment. Over the past few decades, obesity rates among the Emirati population have been increasing. The aim of this study was to investigate the association of candidate gene single nucleotide polymorphisms (SNPs), namely FTO (rs9939609) and VDR (rs1544410), with obesity in the UAE population. METHODS: This is a case-control study in which genomic DNA was extracted from saliva samples of 201 obese, 115 overweight, and 98 normal subjects in the United Arab Emirates (UAE). Genotyping for the variants was performed using TaqMan assay. RESULTS: The mean Body Mass Index (BMI) +/- SD for the obese, overweight, and normal subjects was 35.76 +/- 4.54, 27.53 +/- 1.45, and 22.69 +/- 1.84 kg/m2, respectively. Increasing BMI values were associated with increase in values of HbA1c, systolic and diastolic blood pressure. There was a significant association observed between the FTO SNP rs9939609 and BMI (p = 0.028), with the minor allele A having a clear additive effect on BMI values. There was no significant association detected between BMI and rs1544410 of VDR. Moreover, significant interaction between the FTO rs9939609 and physical activity reduced the "AA" genotype effect on increase in BMI (p = 0.027). CONCLUSIONS: Our study findings indicate that the minor allele A of the rs9939609 has a significant association with increasing BMI values. Moreover, our findings support the fact that increasing BMI is associated with increasing risks of other comorbidities such as higher blood pressure, poorer glycemic control, and higher triglycerides. In addition, physical activity was found to attenuate the effect of the "AA" genotype on the predisposition to higher BMI values. PMID- 29343215 TI - Women's decision-making processes and the influences on their mode of birth following a previous caesarean section in Taiwan: a qualitative study. AB - BACKGROUND: Vaginal birth after caesarean (VBAC) is an alternative option for women who have had a previous caesarean section (CS); however, uptake is limited because of concern about the risks of uterine rupture. The aim of this study was to explore women's decision-making processes and the influences on their mode of birth following a previous CS. METHODS: A qualitative approach was used. The research comprised three stages. Stage I consisted of naturalistic observation at 33-34 weeks' gestation. Stage II involved interviews with pregnant women at 35-37 weeks' gestation. Stage III consisted of interviews with the same women who were interviewed postnatally, 1 month after birth. The research was conducted in a private medical centre in northern Taiwan. Using a purposive sampling, 21 women and 9 obstetricians were recruited. Data collection involved in-depth interviews, observation and field notes. Constant comparative analysis was employed for data analysis. RESULTS: Ensuring the safety of mother and baby was the focus of women's decisions. Women's decisions-making influences included previous birth experience, concern about the risks of vaginal birth, evaluation of mode of birth, current pregnancy situation, information resources and health insurance. In communicating with obstetricians, some women complied with obstetricians' recommendations for repeat caesarean section (RCS) without being informed of alternatives. Others used four step decision-making processes that included searching for information, listening to obstetricians' professional judgement, evaluating alternatives, and making a decision regarding mode of birth. After birth, women reflected on their decisions in three aspects: reflection on birth choices; reflection on factors influencing decisions; and reflection on outcomes of decisions. CONCLUSIONS: The health and wellbeing of mother and baby were the major concerns for women. In response to the decision-making influences, women's interactions with obstetricians regarding birth choices varied from passive decision-making to shared decision-making. All women have the right to be informed of alternative birthing options. Routine provision of explanations by obstetricians regarding risks associated with alternative birth options, in addition to financial coverage for RCS from National Health Insurance, would assist women's decision-making. Establishment of a website to provide women with reliable information about birthing options may also assist women's decision making. PMID- 29343216 TI - An appraisal: how notifiable infectious diseases are reported by Hungarian family physicians. AB - BACKGROUND: Within the frame of National Epidemiological Surveillance System, family physicians have an obligation to report infections and suspicions cases. The aim of this study was to evaluate the knowledge, attitudes, daily practice and the reporting activities of Hungarian family physicians regarding to infectious diseases. METHODS: A self-administered survey was developed, validated and used. The survey was completed by family physicians who had taken part in continuous medical educational programmes of all Hungarian medical faculties. The questionnaire, consisting demographic questions and 10 statements about their reporting habits were completed by 347 doctors, 8% of the total number of family physicians. The data were processed in a cross-sectional design with general linear model. RESULTS: According to the majority of responders, the current reporting system works efficiently. Rural physicians were mainly agreed, that reporting is not a simply obligation, it is a professional task as well. They were less hindered in daily work by reporting activities, waited less for laboratory confirmation before reporting, reported suspicious cases more frequently. Practitioner's based in urban settlements preferred to await laboratory tests before reporting and were hindered less by failures of the electronic reporting system. Older physicians trusted more in the recent system and they wished to increase the number of reports. Female physicians have higher consciousness in epidemiology. They were mostly in agreement that even severe infectious diseases can be diagnosed at primary care level and their daily practices were less burdened by reporting duties. CONCLUSIONS: Both the epidemiological knowledge of general practitioners' and the electronic surveillance systems should be improved. There is a need to develope the electronic infrastructure of primary care. More and regular control is also expected by the health care authorities, beside the synthesis of professional and governmental expectations and regulations. PMID- 29343218 TI - LocText: relation extraction of protein localizations to assist database curation. AB - BACKGROUND: The subcellular localization of a protein is an important aspect of its function. However, the experimental annotation of locations is not even complete for well-studied model organisms. Text mining might aid database curators to add experimental annotations from the scientific literature. Existing extraction methods have difficulties to distinguish relationships between proteins and cellular locations co-mentioned in the same sentence. RESULTS: LocText was created as a new method to extract protein locations from abstracts and full texts. LocText learned patterns from syntax parse trees and was trained and evaluated on a newly improved LocTextCorpus. Combined with an automatic named entity recognizer, LocText achieved high precision (P = 86%+/-4). After completing development, we mined the latest research publications for three organisms: human (Homo sapiens), budding yeast (Saccharomyces cerevisiae), and thale cress (Arabidopsis thaliana). Examining 60 novel, text-mined annotations, we found that 65% (human), 85% (yeast), and 80% (cress) were correct. Of all validated annotations, 40% were completely novel, i.e. did neither appear in the annotations nor the text descriptions of Swiss-Prot. CONCLUSIONS: LocText provides a cost-effective, semi-automated workflow to assist database curators in identifying novel protein localization annotations. The annotations suggested through text-mining would be verified by experts to guarantee high-quality standards of manually-curated databases such as Swiss-Prot. PMID- 29343217 TI - Ceratocystis cacaofunesta genome analysis reveals a large expansion of extracellular phosphatidylinositol-specific phospholipase-C genes (PI-PLC). AB - BACKGROUND: The Ceratocystis genus harbors a large number of phytopathogenic fungi that cause xylem parenchyma degradation and vascular destruction on a broad range of economically important plants. Ceratocystis cacaofunesta is a necrotrophic fungus responsible for lethal wilt disease in cacao. The aim of this work is to analyze the genome of C. cacaofunesta through a comparative approach with genomes of other Sordariomycetes in order to better understand the molecular basis of pathogenicity in the Ceratocystis genus. RESULTS: We present an analysis of the C. cacaofunesta genome focusing on secreted proteins that might constitute pathogenicity factors. Comparative genome analyses among five Ceratocystidaceae species and 23 other Sordariomycetes fungi showed a strong reduction in gene content of the Ceratocystis genus. However, some gene families displayed a remarkable expansion, in particular, the Phosphatidylinositol specific phospholipases-C (PI-PLC) family. Also, evolutionary rate calculations suggest that the evolution process of this family was guided by positive selection. Interestingly, among the 82 PI-PLCs genes identified in the C. cacaofunesta genome, 70 genes encoding extracellular PI-PLCs are grouped in eight small scaffolds surrounded by transposon fragments and scars that could be involved in the rapid evolution of the PI-PLC family. Experimental secretome using LC-MS/MS validated 24% (86 proteins) of the total predicted secretome (342 proteins), including four PI-PLCs and other important pathogenicity factors. CONCLUSION: Analysis of the Ceratocystis cacaofunesta genome provides evidence that PI-PLCs may play a role in pathogenicity. Subsequent functional studies will be aimed at evaluating this hypothesis. The observed genetic arsenals, together with the analysis of the PI-PLC family shown in this work, reveal significant differences in the Ceratocystis genome compared to the classical vascular fungi, Verticillium and Fusarium. Altogether, our analyses provide new insights into the evolution and the molecular basis of plant pathogenicity. PMID- 29343219 TI - The preliminary effect of whole-body vibration intervention on improving the skeletal muscle mass index, physical fitness, and quality of life among older people with sarcopenia. AB - BACKGROUND: Studies have shown that sarcopenia easily leads to difficulty moving, disability, and poor quality of life. However, researches on the use of whole body vibration for older adults with sarcopenia living in institutions have been lacking. Therefore, the main objective of the present study was to investigate the effect of whole-body vibration intervention on improving the skeletal muscle mass index, physical fitness, and quality of life of older adults with sarcopenia living in institutions. METHODS: This study adopted a quasi-experimental, single group, pretest-posttest design. The whole-body vibration intervention was performed over a 3-month period, in which the older adults trained 3 times per week; each training lasted 60 s with a break of 30 s for 10 repetitions. The older adults' skeletal muscle mass index, physical fitness and quality of life before and after the intervention of the whole-body vibration was collected. Concerning the statistical methods adopted, nonparametric method-based tests were employed. RESULTS: According to the results of analysis, after the intervention of the 12-week whole-body vibration, the skeletal muscle mass index (z = - 3.621, p = 0.000), physical fitness on standing on one foot (z = - 2.447, p = 0.014), shoulder-arm flexibility (z = - 3.159, p = 0.002), 8-ft up and go test (z = - 2.692, p = 0.009), hand grip strength (z = - 3.388, p = 0.009), and five repeated sit-to-stand tests (z = - 2.936, p = 0.003), all improved significantly. Furthermore, concerning the quality of life of the older adults in the pretest and posttest, the improvements were statistically significant (z = - 2.533, p = 0.011). CONCLUSIONS: The study results showed the effect of whole-body vibration intervention on improving the skeletal muscle mass index, physical fitness, and quality of life of sarcopenic older people living in institutions and could serve as a crucial reference to health care professionals. PMID- 29343221 TI - A case of molecularly profiled extraneural medulloblastoma metastases in a child. AB - BACKGROUND: Extraneural metastases are relatively rare manifestations of medulloblastoma. CASE PRESENTATION: We present the case of a young boy with group three MYCN-amplified medulloblastoma. He received multimodal chemotherapy consisting of gross total resection followed by postoperative craniospinal radiation and adjuvant chemotherapy. The patient developed extraneural metastases 4 months after the end of therapy. Literature review identifies the poor prognosis of MYCN-amplified medulloblastomas as well as extraneural metastases; we review the current limitations and future directions of medulloblastoma treatment options. CONCLUSION: To the best of our knowledge, this is the first molecularly characterized report of extraneural metastases of medulloblastoma in a child. PMID- 29343220 TI - Antimicrobial resistance of Neisseria gonorrhoeae in Germany: low levels of cephalosporin resistance, but high azithromycin resistance. AB - BACKGROUND: The widespread antimicrobial resistance of Neisseria gonorrhoeae is a serious problem for the treatment and control of gonorrhoea. Many of the previously effective therapeutic agents are no longer viable. Because N. gonorrhoeae infections are not reportable in Germany, only limited data on disease epidemiology and antimicrobial susceptibility patterns are available. The Gonococcal Resistance Network (GORENET) is a surveillance project to monitor trends in the antimicrobial susceptibility of N. gonorrhoeae in Germany in order to guide treatment algorithms and target future prevention strategies. METHODS: Between April 2014 and December 2015, data on patient-related information were collected from laboratories nationwide, and susceptibility testing was performed on 537 N. gonorrhoeae isolates forwarded from the network laboratories to the Conciliar Laboratory for gonococci. Susceptibility results for cefixime, ceftriaxone, azithromycin, ciprofloxacin and penicillin were defined according to EUCAST 4.0 standards. Percentages, medians and interquartile ranges (IQR) were calculated. RESULTS: Altogether, 90% of isolates were from men. The median age was 32 (IQR 25-44) years for men and 25 (IQR 22-40) years for women (p-value < 0.001). The most frequently tested materials among men were urethral (96.1%) and rectal swabs (1.7%), and among women, it was mainly endocervical and vaginal swabs (84.3%). None of the isolates were resistant to ceftriaxone. Furthermore, 1.9% (in 2014) and 1.4% (in 2015) of the isolates were resistant to cefixime, 11.9% and 9.8% showed resistance against azithromycin, 72.0% and 58.3% were resistant to ciprofloxacin, and 29.1% and 18.8% were resistant to penicillin. CONCLUSIONS: Resistance to ceftriaxone was not detected, and the percentage of isolates with resistance to cefixime was low, whereas azithromycin resistance showed high levels during the observation period. The rates of ciprofloxacin resistance and penicillin resistance were very high across Germany. Continued surveillance of antimicrobial drug susceptibilities for N. gonorrhoeae remains highly important to ensure efficient disease management. PMID- 29343222 TI - Transscleral tunnel incision related arterial hemorrhage in 23-gauge Vitrectomy: case report. AB - BACKGROUND: Transscleral tunnel incisions are commonly made to avoid postoperative leakage in small gauge sutureless vitrectomy. We present an unreported intraoperative complication, tunnel incision related arterial hemorrhage from sclerotomy, in 23-gauge (23G) vitrectomy. CASE PRESENTATION: Two cases of intraocular arterial hemorrhage from superonasal sclerotomy were observed at the beginning of vitrectomy. The bleeding filled the vitreous cavity quickly and gushed out from the incision port after the involved supronasal cannula was removed. The active bleeding seemed not to stop spontaneously. We controlled the active bleeding by relocating the involved cannula, elevating the intraocular pressure and compressing the sclera wound. Post-operative intraocular hemorrhage from the sclerotomy was not found in any of the two cases. CONCLUSIONS: We suggest that the bleeding was from injured ciliary artery when the incision crossed 3 or 9 o'clock accidently. Surgeons might avoid this complication by locating the superior incisions away from the horizontal axis, and should be aware the proper management. PMID- 29343223 TI - The impact of age on the implementation of evidence-based medications in patients with coronary artery disease and its prognostic significance: a retrospective cohort study. AB - BACKGROUND: Elderly patients with coronary artery disease (CAD) frequently complicated with more cardiovascular risk factors, but received fewer evidence based medications (EBMs). This study explored the association of EBMs compliance in different age groups and the risk of long-term death. METHODS: A retrospective analysis was conducted from a single registered database. 2830 consecutive patients with CAD were enrolled and grouped into 3 categories by age. The primary end point was all-cause mortality and secondary endpoint is cardiovascular mortality. RESULTS: The mean follow-up time was 30.25 +/- 11.89 months and death occurred in 270 cases,including 150 cases of cardiac death. Cumulative survival curves indicated that the incidence rates of all-cause death and cardiovascular death increased with age (older than 75 years old vs. 60 to 75 years old vs. younger than 60 years old, mortality: 18.7% vs. 9.6% vs. 4.1%, p < 0.001; cardiovascular mortality: 10.3% vs. 5.1% vs. 2.7%, p < 0.001). The percentage of elderly patients using no EBMs was significantly higher than the percentages in the other age group (7.7% vs. 4.6% vs. 2.2%,p < 0.05). Cox regression analysis revealed the benefit of combination EBMs (all-cause mortality: hazard ratio [HR] 0.15, 95% CI 0.08-0.27; cardiac mortality: HR 0.08, 95% CI 0.04-0.19) for older CAD patients. Similar trends were found about different kinds of EBMs in elderly patients. CONCLUSIONS: Elderly patients with CAD had higher risk of death but a lower degree of compliance with EBMs usage. Elderly CAD patients could receive more clinical benefits by using EBMs. PMID- 29343224 TI - Development and validation of self-reported line drawings of the modified Beighton score for the assessment of generalised joint hypermobility. AB - BACKGROUND: The impracticalities and comparative expense of carrying out a clinical assessment is an obstacle in many large epidemiological studies. The purpose of this study was to develop and validate a series of electronic self reported line drawing instruments based on the modified Beighton scoring system for the assessment of self-reported generalised joint hypermobility. METHODS: Five sets of line drawings were created to depict the 9-point Beighton score criteria. Each instrument consisted of an explanatory question whereby participants were asked to select the line drawing which best represented their joints. Fifty participants completed the self-report online instrument on two occasions, before attending a clinical assessment. A blinded expert clinical observer then assessed participants' on two occasions, using a standardised goniometry measurement protocol. Validity of the instrument was assessed by participant-observer agreement and reliability by participant repeatability and observer repeatability using unweighted Cohen's kappa (k). Validity and reliability were assessed for each item in the self-reported instrument separately, and for the sum of the total scores. An aggregate score for generalised joint hypermobility was determined based on a Beighton score of 4 or more out of 9. RESULTS: Observer-repeatability between the two clinical assessments demonstrated perfect agreement (k 1.00; 95% CI 1.00, 1.00). Self reported participant-repeatability was lower but it was still excellent (k 0.91; 95% CI 0.74, 1.00). The participant-observer agreement was excellent (k 0.96; 95% CI 0.87, 1.00). Validity was excellent for the self-report instrument, with a good sensitivity of 0.87 (95% CI 0.81, 0.91) and excellent specificity of 0.99 (95% CI 0.98, 1.00). CONCLUSIONS: The self-reported instrument provides a valid and reliable assessment of the presence of generalised joint hypermobility and may have practical use in epidemiological studies. PMID- 29343225 TI - Health worker knowledge of Integrated Disease Surveillance and Response standard case definitions: a cross-sectional survey at rural health facilities in Kenya. AB - BACKGROUND: The correct knowledge of standard case definition is necessary for frontline health workers to diagnose suspected diseases across Africa. However, surveillance evaluations commonly assume this prerequisite. This study assessed the knowledge of case definitions for health workers and their supervisors for disease surveillance activities in rural Kenya. METHODS: A cross-sectional survey including 131 health workers and their 11 supervisors was undertaken in two counties in Kenya. Descriptive analysis was conducted to classify the correctness of knowledge into four categories for three tracer diseases (dysentery, measles, and dengue). We conducted a univariate and multivariable logistic regression analyses to explore factors influencing knowledge of the case definition for dysentery. RESULTS: Among supervisors, 81.8% knew the correct definition for dysentery, 27.3% for measles, and no correct responses were provided for dengue. Correct knowledge was observed for 50.4% of the health workers for dysentery, only 12.2% for measles, and none for dengue. Of 10 examined factors, the following were significantly associated with health workers' correct knowledge of the case definition for dysentery: health workers' cadre (aOR 2.71; 95% CI 1.20 6.12; p = 0.017), and display of case definition poster (aOR 2.24; 95% CI 1.01 4.98; p = 0.048). Health workers' exposure to the surveillance refresher training, supportive supervision and guidelines were not significantly associated with the knowledge. CONCLUSION: The correct knowledge of standard case definitions was sub-optimal among health workers and their supervisors, which is likely to impact the reliability of routine surveillance reports generated from health facilities. PMID- 29343226 TI - Binge eating disorder and depressive symptoms among females of child-bearing age: the Korea Nurses' Health Study. AB - BACKGROUND: Most studies regarding the relationship between binge eating disorder (BED) and depression have targeted obese populations. However, nurses, particularly female nurses, are one of the vocations that face these issues due to various reasons including high stress and shift work. This study investigated the prevalence of BED and the correlation between BED and severity of self reported depressive symptoms among female nurses in South Korea. METHODS: Participants were 7,267 female nurses, of which 502 had symptoms of BED. Using the propensity score matching (PSM) technique, 502 nurses with BED and 502 without BED were included in the analyses. Data were analyzed using descriptive statistics, Spearman's correlation, and multivariable ordinal logistic regression analysis. RESULTS: The proportion of binge eating disorder was 6.90% among the nurses, and 81.3% of nurses displayed some levels of depressive symptoms. Multivariable ordinal logistic regression analysis revealed that age (40 years old and older), alcohol consumption (frequent drinkers), self-rated health, sleep problems, and stress were associated with self-reported depression symptoms. Overall, after adjusting for confounders, nurses with BED had 1.80 times the risk (95% CI = [1.41-2.30]; p-value < 0.001) of experiencing a greater severity of self-reported depression symptoms. CONCLUSIONS: Korean female nurse showed a higher prevalence of both binge eating disorder and depressive symptoms, and the association between the two factors was proven in the study. Therefore, hospital management and health policy makers should be alarmed and agreed on both examining nurses on such problems and providing organized and systematic assistance. PMID- 29343227 TI - Associations among maternal pre-pregnancy body mass index, gestational weight gain and risk of autism in the Han Chinese population. AB - BACKGROUND: Autism is a neurodevelopmental disorder with an unclear etiology. Pre pregnancy body mass index (BMI) and gestational weight gain (GWG) have been suggested to play a role in the etiology of autism. The current study explores the associations among maternal pre-pregnancy BMI, GWG and the risk of autism in the Han Chinese population. METHODS: Demographic information, a basic medical history and information regarding maternal pre-pregnancy and pregnancy conditions were collected from the parents of 705 Han Chinese children with autism and 2236 unrelated typically developing children. Binary logistic regressions were conducted to calculate the odds ratio (OR) for the relationship among pre pregnancy BMI, GWG and the occurrence of autism. The interaction between pre pregnancy BMI and GWG was analyzed by performing stratification analyses using a logistic model. RESULTS: After adjusting for the children's gender, parental age and family annual income, excessive GWG was associated with autism risk in the entire sample (OR = 1.327, 95% CI: 1.021-1.725), whereas the relationship between maternal pre-pregnancy BMI and autism was not significant. According to the stratification analyses, excessive GWG increased the risk of autism in overweight/obese mothers (OR = 2.468, 95% CI: 1.102-5.526) but not in underweight or normal weight mothers. CONCLUSIONS: The maternal pre-pregnancy BMI might not be independently associated with autism risk. However, excessive GWG might increase the autism risk of offspring of overweight and obese mothers. PMID- 29343228 TI - Problematic internet use and psychiatric co-morbidity in a population of Japanese adult psychiatric patients. AB - BACKGROUND: Many studies reported the high prevalence of problematic internet use (PIU) among adolescents (13-50%), and PIU was associated with various psychiatric symptoms. In contrast, only a few studies investigated the prevalence among the adult population (6%). This study aimed to investigate the prevalence of PIU and psychiatric co-morbidity among adult psychiatric patients. METHODS: Three hundred thirty-three adult psychiatric patients were recruited over a 3-month period. Two hundred thirty-one of them completed the survey (response rate: 69.4%, 231/333; Male/Female/Transgender: 90/139/2; mean age = 42.2). We divided participants into "normal internet users" and "problematic internet users" using a combination of Young's Internet Addiction Test (IAT) and the Compulsive Internet Use Scale (CIUS). Demographic data and comorbid psychiatric symptoms were compared between the two groups using self-rating scales measuring insomnia (Athens Insomnia Scale, AIS), depression (Beck Depression Inventory, BDI), anxiety (State-trait Anxiety Inventory, STAI), attention deficit hyperactivity disorder (ADHD) (Adult ADHD Self-report Scale, ASRS), autism (Autism Spectrum Quotient, AQ), obsessive compulsive disorder (OCD) (Obsessive-Compulsive Inventory, OCI), social anxiety disorder (SAD) (Liebowitz Social Anxiety Scale, LSAS), alcohol abuse, and impulsivity (Barratt Impulsive Scale, BIS). RESULTS: Among 231 respondents, 58 (25.1%) were defined as problematic internet users, as they scored high on the IAT (40 or more) or CIUS (21 or more). The age of problematic internet users was significantly lower than that of normal internet users (p < 0.001, Mann-Whitney U test). The problematic internet users scored significantly higher on scales measuring sleep problems (AIS, 8.8 for problematic internet users vs 6.3 for normal internet users, p < 0.001), depression (BDI, 27.4 vs 18.3, p < 0.001), trait anxiety (STAI, 61.8 vs 53.9, p < 0.001), ADHD (ASRS, part A 3.1 vs 1.8 and part B 3.5 vs 1.8, p < 0.001), autism (AQ, 25.9 vs 21.6, p < 0.001), OCD (OCI, 63.2 vs 36.3, p < 0.001), SAD (LSAS, 71.4 vs 54.0, p < 0.001), and impulsivity (BIS, 67.4 vs 63.5, p = 0.004). CONCLUSIONS: The prevalence of PIU among adult psychiatric patients is relatively high. As previous studies reported in the general population, lower age and psychiatric comorbidity were associated with PIU among adult psychiatric patients. More research is needed to determine any causal relations between PIU and psychopathological illnesses. PMID- 29343229 TI - The Colombo Twin and Singleton Follow-up Study: a population based twin study of psychiatric disorders and metabolic syndrome in Sri Lanka. AB - BACKGROUND: The disease burden related to mental disorders and metabolic syndrome is growing in low-and middle-income countries (LMIC). The Colombo Twin and Singleton Study (COTASS) is a population-based sample of twins and singletons in Colombo, Sri Lanka. Here we present prevalence estimates for metabolic syndrome (metS) and mental disorders from a follow-up (COTASS-2) of the original study (COTASS-1), which was a mental health survey. METHODS: In COTASS-2, participants completed structured interviews, anthropometric measures and provided fasting blood and urine samples. Depressive disorder, depressive symptoms, anxiety symptoms, post-traumatic stress disorder (PTSD) and hazardous alcohol use were ascertained with structured psychiatric screens (Composite International Diagnostic Interview (CIDI), Beck Depression Inventory (BDI-II), Generalised Anxiety Disorder Questionnaire (GAD-7), PTSD Checklist - Civilian Version (PCL C), and Alcohol Use Disorders Identification Test (AUDIT)). We defined metS according to the International Diabetes Federation (IDF) criteria and the revised National Cholesterol Education Programme Adult Treatment Panel (NCEP ATP III) criteria. We estimated the prevalence of psychiatric disorders and metS and metS components, and associations with gender, education and age. RESULTS: Two thousand nine hundred thirty-four twins and 1035 singletons were followed up from COTASS-1 (83.4 and 61.8% participation rate, respectively). Prevalence estimates for depressive disorder (CIDI), depressive symptoms (BDI >= 16), anxiety symptoms (GAD-7 >= 10) and PTSD (PCL-C DSM criteria) were 3.8, 5.9, 3.6, and 4.5% respectively for twins and 3.9, 9.8, 5.1 and 5.4% for singletons. 28.1 and 30.9% of male twins and singletons respectively reported hazardous alcohol use. Approximately one third met the metS criteria (IDF: 27.4% twins, 44.6% singletons; NCEP ATP III: 30.6% twins, 48.6% singletons). The most prevalent components were central obesity (59.2% twins, 71.2% singletons) and raised fasting blood glucose or diabetes (38.2% twins, 56.7% singletons). CONCLUSION: MetS was highly prevalent in twins, and especially high in singletons, whereas the prevalence of mental disorders was low, but consistent with local estimates. The high levels of raised fasting plasma glucose and central obesity were particularly concerning, and warrant national diabetes prevention programmes. PMID- 29343230 TI - The SyBil-AA real-time fMRI neurofeedback study: protocol of a single-blind randomized controlled trial in alcohol use disorder. AB - BACKGROUND: Alcohol Use Disorder is a highly prevalent mental disorder which puts a severe burden on individuals, families, and society. The treatment of Alcohol Use Disorder is challenging and novel and innovative treatment approaches are needed to expand treatment options. A promising neuroscience-based intervention method that allows targeting cortical as well as subcortical brain processes is real-time functional magnetic resonance imaging neurofeedback. However, the efficacy of this technique as an add-on treatment of Alcohol Use Disorder in a clinical setting is hitherto unclear and will be assessed in the Systems Biology of Alcohol Addiction (SyBil-AA) neurofeedback study. METHODS: N = 100 patients with Alcohol Use Disorder will be randomized to 5 parallel groups in a single blind fashion and receive real-time functional magnetic resonance imaging neurofeedback while they are presented pictures of alcoholic beverages. The groups will either downregulate the ventral striatum, upregulate the right inferior frontal gyrus, negatively modulate the connectivity between these regions, upregulate, or downregulate the auditory cortex as a control region. After receiving 3 sessions of neurofeedback training within a maximum of 2 weeks, participants will be followed up monthly for a period of 3 months and relapse rates will be assessed as the primary outcome measure. DISCUSSION: The results of this study will provide insights into the efficacy of real-time functional magnetic resonance imaging neurofeedback training in the treatment of Alcohol Use Disorder as well as in the involved brain systems. This might help to identify predictors of successful neurofeedback treatment which could potentially be useful in developing personalized treatment approaches. TRIAL REGISTRATION: The study was retrospectively registered in the German Clinical Trials Register (trial identifier: DRKS00010253 ; WHO Universal Trial Number (UTN): U1111-1181 4218) on May 10th, 2016. PMID- 29343231 TI - Cementless unicompartmental knee replacement allows early return to normal activity. AB - BACKGROUND: Physical activity and regular participation in recreational sports gain importance in patients' lifestyle after knee arthroplasty. Cementless unicompartimental Knee replacement with the Oxford System has been introduced into clinical routine. Currently there is no data reporting on the physical activity, return to sports rate and quality of live after medial cementless Oxford Unicompartimental Knee Replacement (OUKR). METHODS: This retrospective cohort study reports on the functional outcome of the first 27 consecutive patients (30 knees) that were consecutively treated with a cementless medial OUKR between 2007 and 2009 in our hospital. Physical activity and quality of life were measured using the Tegner-Score, the UCLA-Activity Score, the Schulthess Clinical Activity Questionnaire and the SF-36 Score. The patients' satisfaction with the outcome was measured using a visual analogue scale. RESULTS: Mean age at surgery was 62.5 years. Patients showed a rapid recovery with 17 out of 27 patients returning to sports within 3 months, 24 within 6 months after surgery. The Return to-activity-rate was 100%. 10 out of 27 patients showed a high activity level (UCLA >=7 points) with a mean postoperative UCLA-Score of 6.1 points. CONCLUSIONS: Patients recover rapidly after cementless OUKR with a return to sports rate of 100% and patients are able to participate in high impact sports disciplines. PMID- 29343232 TI - Intravenous dexmedetomidine pre-medication reduces the required minimum alveolar concentration of sevoflurane for smooth tracheal extubation in anesthetized children: a randomized clinical trial. AB - BACKGROUND: It has been known that Dexmedetomidine pre-medication enhances the effects of volatile anesthetics, reduces the need of sevoflurane, and facilitates smooth extubation in anesthetized children. This present study was designed to determine the effects of different doses of intravenous dexmedetomidine pre medication on minimum alveolar concentration of sevoflurane for smooth tracheal extubation (MACEX) in anesthetized children. METHODS: A total of seventy-five pediatric patients, aged 3-7 years, ASA physical status I and II, and undergoing tonsillectomy were randomized to receive intravenous saline (Group D0), dexmedetomidine 1 MUg?kg-1 (Group D1), or dexmedetomidine 2 MUg?kg-1 (Group D2) approximately 10 min before anesthesia start. Sevoflurane was used for anesthesia induction and anesthesia maintenance. At the end of surgery, the initial concentration of sevoflurane for smooth tracheal extubation was determined according to the modified Dixon's "up-and-down" method. The starting sevoflurane for the first patient was 1.5% in Group D0, 1.0% in Group D1, and 0.8% in Group D2, with subsequent 0.1% up or down in next patient based on whether smooth extubation had been achieved or not in current patient. The endotreacheal tube was removed after the predetermined concentration had been maintained constant for ten minutes. All responses ("smooth" or "not smooth") to tracheal extubation and respiratory complications were assessed. RESULTS: MACEX values of sevoflurane in Group D2 (0.51 +/- 0.13%) was significantly lower than in Group D1 (0.83 +/- 0.10%; P < 0.001), the latter being significantly lower than in Group D0 (1.40 +/ 0.12%; P < 0.001). EC95 values of sevoflurane were 0.83%, 1.07%, and 1.73% in Group D2, Group D1, and Group D0, respectively. No patient in the current study had laryngospasm. CONCLUSION: Dexmedetomidine decreased the required MACEX values of sevoflurane to achieve smooth extubation in a dose-dependent manner. Intravenous dexmedetomidine 1 MUg?kg-1 and 2 MUg?kg-1 pre-medication decreased MACEX by 41% and 64%, respectively. TRIAL REGISTRATION: Chinese Clinical Trial Registry (ChiCTR): ChiCTR-IOD-17011601 , date of registration: 09 Jun 2017, retrospectively registered. PMID- 29343233 TI - Alcohol use and sickness absence due to all causes and mental- or musculoskeletal disorders: a nationally representative study. AB - BACKGROUND: Previous studies have not distinguished between different alcohol-use histories, which could have contributed to the current inconsistent evidence regarding the relationship between alcohol use and subsequent sickness absence. We thus examined alcohol use and subsequent diagnosis-specific sickness absence in groups with different levels of alcohol use, as well as in lifelong abstainers, former drinkers, and people with clinical alcohol use disorders. METHODS: The data of the population-based Health 2000 Survey (BRIF8901) of 3666 Finns aged 30-55 were linked with national registers on medically certified sickness absences lasting for > 10 working days (long-term) for all causes (2000 2010) and for mental or musculoskeletal disorders (2004-2010), as well as with registers on pensions and death (2000-2010). Alcohol use was assessed by questionnaire. Chronic somatic diseases were evaluated at baseline in a clinical examination, and common mental and alcohol use disorders using the Composite International Diagnostic Interview (CIDI). Cox regression analyses were conducted with censoring for death and retirement from work. RESULTS: During an average 10 year follow-up, 56.0% of the participants had at least one long-term sickness absence period. Compared with light drinkers, those having an alcohol use disorder had increased risk of all-cause sickness absence (HR = 1.27; 95% CI = 1.04 - 1.54) and sickness absence due to mental disorders (HR = 2.16; 95% CI = 1.39 - 3.35), when somatic and mental disorders as well as demographic, lifestyle related and occupational factors at baseline were accounted for. Lifelong abstainers did not differ from light drinkers. Also high-volume drinking (HR = 1.52; 95% CI 1.03 - 2.25) and former drinking (HR = 1.57; 95% CI = 1.15 - 2.15) were associated with long-term sickness absence due to mental disorders. Alcohol use was not predictive of sickness absence due to musculoskeletal disorders. CONCLUSIONS: These results highlight the need to distinguish between former drinking and lifelong abstinence, as only former drinking was associated with sickness absence. Alcohol use disorder and high-volume drinking were strongly predictive of sickness absence due to mental disorders. Identifying people with excessive alcohol use e.g. in occupational health care, and mapping and supporting their mental health may help in preventing sickness absences. PMID- 29343234 TI - From the day they are born: a qualitative study exploring violence against children with disabilities in West Africa. AB - BACKGROUND: Despite the building evidence on violence against children globally, almost nothing is known about the violence children with disabilities in low and middle-income countries (LMICs) experience. The prevalence of violence against children with disabilities can be expected to be higher in LMICs where there are greater stigmas associated with having a child with a disability, less resources for families who have children with disabilities, and wider acceptance of the use of corporal punishment to discipline children. This study explores violence experienced by children with disabilities based on data collected from four countries in West Africa- Guinea, Niger, Sierra Leone, and Togo. METHODS: A qualitative study design guided data generation with a total of 419 children, community members, and disability stakeholders. Participants were selected using purposive sampling. Stakeholders shared their observations of or experiences of violence against children with disabilities in their community in interviews and focus groups. Thematic analysis guided data analysis and identified patterns of meaning among participants' experiences. RESULTS: Results illuminate that children with disabilities experience violence more than non-disabled children, episodes of violence start at birth, and that how children with disabilities participate in their communities contributes to their different experiences of violence. CONCLUSIONS: The study recommends policy-oriented actions and prevention programs that include children and their families in strategizing ways to address violence. PMID- 29343236 TI - Barriers to timely diagnosis of interstitial lung disease in the real world: the INTENSITY survey. AB - BACKGROUND: The diagnosis of idiopathic pulmonary fibrosis (IPF) and other interstitial lung diseases (ILD) presents significant clinical challenges. To gain insights regarding the diagnostic experience of patients with ILD and to identify potential barriers to a timely and accurate diagnosis, we developed an online questionnaire and conducted a national survey of adults with a self reported diagnosis of ILD. METHODS: A pre-specified total of 600 subjects were recruited to participate in a 40-question online survey. E-mail invitations containing a link to the survey were sent to 16 427 registered members of the Pulmonary Fibrosis Foundation. Additionally, an open invitation was posted on an online forum for patients and caregivers ( www.inspire.com ). The recruitment and screening period was closed once the pre-defined target number of respondents was reached. Eligible participants were adult U.S. residents with a diagnosis of IPF or a non-IPF ILD. RESULTS: A total of 600 eligible respondents met the eligibility criteria and completed the survey. Of these, 55% reported >= 1 misdiagnosis and 38% reported >= 2 misdiagnoses prior to the current diagnosis. The most common misdiagnoses were asthma (13.5%), pneumonia (13.0%), and bronchitis (12.3%). The median time from symptom onset to current diagnosis was 7 months (range, 0-252 months), with 43% of respondents reporting a delay of >= 1 year and 19% reporting a delay of >= 3 years. Sixty-one percent of respondents underwent at least one invasive diagnostic procedure. CONCLUSIONS: While a minority of patients with ILD will experience an appropriate and expedient diagnosis, the more typical diagnostic experience for individuals with ILD is characterized by considerable delays, frequent misdiagnosis, exposure to costly and invasive diagnostic procedures, and substantial use of healthcare resources. These findings suggest a need for physician education, development of clinical practice recommendations, and improved diagnostic tools aimed at improving diagnostic accuracy in patients with ILD. PMID- 29343235 TI - Comparison of three assembly strategies for a heterozygous seedless grapevine genome assembly. AB - BACKGROUND: De novo heterozygous assembly is an ongoing challenge requiring improved assembly approaches. In this study, three strategies were used to develop de novo Vitis vinifera 'Sultanina' genome assemblies for comparison with the inbred V. vinifera (PN40024 12X.v2) reference genome and a published Sultanina ALLPATHS-LG assembly (AP). The strategies were: 1) a default PLATANUS assembly (PLAT_d) for direct comparison with AP assembly, 2) an iterative merging strategy using METASSEMBLER to combine PLAT_d and AP assemblies (MERGE) and 3) PLATANUS parameter modifications plus GapCloser (PLAT*_GC). RESULTS: The three new assemblies were greater in size than the AP assembly. PLAT*_GC had the greatest number of scaffolds aligning with a minimum of 95% identity and >=1000 bp alignment length to V. vinifera (PN40024 12X.v2) reference genome. SNP analysis also identified additional high quality SNPs. A greater number of sequence reads mapped back with zero-mismatch to the PLAT_d, MERGE, and PLAT*_GC (>94%) than was found in the AP assembly (87%) indicating a greater fidelity to the original sequence data in the new assemblies than in AP assembly. A de novo gene prediction conducted using seedless RNA-seq data predicted > 30,000 coding sequences for the three new de novo assemblies, with the greatest number (30,544) in PLAT*_GC and only 26,515 for the AP assembly. Transcription factor analysis indicated good family coverage, but some genes found in the VCOST.v3 annotation were not identified in any of the de novo assemblies, particularly some from the MYB and ERF families. CONCLUSIONS: The PLAT_d and PLAT*_GC had a greater number of synteny blocks with the V. vinifera (PN40024 12X.v2) reference genome than AP or MERGE. PLAT*_GC provided the most contiguous assembly with only 1.2% scaffold N, in contrast to AP (10.7% N), PLAT_d (6.6% N) and Merge (6.4% N). A PLAT*_GC pseudo-chromosome assembly with chromosome alignment to the reference genome V. vinifera, (PN40024 12X.v2) provides new information for use in seedless grape genetic mapping studies. An annotated de novo gene prediction for the PLAT*_GC assembly, aligned with VitisNet pathways provides new seedless grapevine specific transcriptomic resource that has excellent fidelity with the seedless short read sequence data. PMID- 29343238 TI - The slowing pace of life expectancy gains since 1950. AB - BACKGROUND: New technological breakthroughs in biomedicine should have made it easier for countries to improve life expectancy at birth (LEB). This paper measures the pace of improvement in the decadal gains of LEB, for the last 60 years adjusting for each country's starting point of LEB. METHODS: LEB increases over the next 10-years for 139 countries between 1950 and 2009 were regressed on LEB, GDP, total fertility rate, population density, CO2 emissions, and HIV prevalence using country-specific fixed effects and time-dummies. Analysis grouped countries into one-of-four strata: LEB < 51, 51 <= LEB < 61, 61 <= LEB < 71, and LEB >= 71. RESULTS: The rate of increase of LEB has fallen consistently since 1950 across all strata. Results hold in unadjusted analysis and in the regression-adjusted analysis. LEB decadal gains fell from 4.80 (IQR: 2.98-6.20) years in the 1950s to 2.39 (IQR:1.80-2.80) years in the 2000s for the healthiest countries (LEB >= 71). For countries with the lowest LEB (LEB < 51), decadal gains fell from 7.38 (IQR:4.83-9.25) years in the 1950s to negative 6.82 (IQR: 12.95--1.05) years in the 2000s. Multivariate analysis controlling for HIV prevalence, GDP, and other covariates shows a negative effect of time on LEB decadal gains among all strata. CONCLUSIONS: Contrary to the expectation that advances in health technology and spending would hasten improvements in LEB, we found that the pace-of-growth of LEB has slowed around the world. PMID- 29343237 TI - Subtypes in clinical burnout patients enrolled in an employee rehabilitation program: differences in burnout profiles, depression, and recovery/resources stress balance. AB - BACKGROUND: Burnout is generally perceived a unified disorder with homogeneous symptomatology across people (exhaustion, cynicism, and reduced professional efficacy). However, increasing evidence points to intra-individual patterns of burnout symptoms in non-clinical samples such as students, athletes, healthy, and burned-out employees. Different burnout subtypes might therefore exist. Yet, burnout subtypes based on burnout profiles have hardly been explored in clinical patients, and the samples investigated in previous studies were rather heterogeneous including patients with various physical, psychological, and social limitations, symptoms, and disabilities. Therefore, the aim of this study is to explore burnout subtypes based on burnout profiles in clinically diagnosed burnout patients enrolled in an employee rehabilitation program, and to investigate whether the subtypes differ in depression, recovery/resources-stress balance, and sociodemographic characteristics. METHODS: One hundred three patients (66 women, 37 men) with a clinical burnout diagnosis, who were enrolled in a 5 week employee rehabilitation program in two specialized psychosomatic clinics in Austria, completed a series of questionnaires including the Maslach Burnout Inventory - General Survey (MBI-GS), the Beck Depression Inventory, and the Recovery-Stress-Questionnaire for Work. Cluster analyses with the three MBI GS subscales as clustering variables were used to identify the burnout subtypes. Subsequent multivariate/univariate analysis of variance and Pearson chi-square tests were performed to investigate differences in depression, recovery/resources stress balance, and sociodemographic characteristics. RESULTS: Three different burnout subtypes were discovered: the exhausted subtype, the exhausted/cynical subtype, and the burned-out subtype. The burned-out subtype and the exhausted/cynical subtype showed both more severe depression symptoms and a worse recovery/resources-stress balance than the exhausted subtype. Furthermore, the burned-out subtype was more depressed than the exhausted/cynical subtype, but no difference was observed between these two subtypes with regard to perceived stress, recovery, and resources. Sociodemographic characteristics were not associated with the subtypes. CONCLUSIONS: The present study indicates that there are different subtypes in clinical burnout patients (exhausted, exhausted/cynical, and burned-out), which might represent patients at different developmental stages in the burnout cycle. Future studies need to replicate the current findings, investigate the stability of the symptom patterns, and examine the efficacy of rehabilitation interventions in different subtypes. PMID- 29343239 TI - Calcium-dependent protein kinases in cotton: insights into early plant responses to salt stress. AB - BACKGROUND: Soil salinization is one of the major environmental constraints to plant growth and agricultural production worldwide. Signaling components involving calcium (Ca2+) and the downstream calcium-dependent protein kinases (CPKs) play key roles in the perception and transduction of stress signals. However, the study of CPKs in cotton and their functions in response to salt stress remain unexplored. RESULTS: A total of 98 predicted CPKs were identified from upland cotton (Gossypium hirsutum L. 'TM-1'), and phylogenetic analyses classified them into four groups. Gene family distribution studies have revealed the substantial impacts of the genome duplication events to the total number of GhCPKs. Transcriptome analyses showed a wide distribution of CPKs' expression among different organs. A total of 19 CPKs were selected for their rapid responses to salt stress at the transcriptional level, most of which were also incduced by the thylene-releasing chemical ethephon, suggesting a partal overlap of the salinity and ethylene responses. Silencing of 4 of the 19 CPKs (GhCPK8, GhCPK38, GhCPK54, and GhCPK55) severely compromised the basal cotton resistance to salt stress. CONCLUSIONS: Our genome-wide expression analysis of CPK genes from up-land cotton suggests that CPKs are involved in multiple developmental responses as well as the response to different abiotic stresses. A cluster of the cotton CPKs was shown to participate in the early signaling events in cotton responses to salt stress. Our results provide significant insights on functional analysis of CPKs in cotton, especially in the context of cotton adaptions to salt stress. PMID- 29343240 TI - Attempted suicide of ethnic minority girls with a Caribbean and Cape Verdean background: rates and risk factors. AB - BACKGROUND: WHO data shows that female immigrants in Europe attempt suicide at higher rates than 'native' women and 'native' and immigrant men. Empirical studies addressing attempted suicide of female immigrants of Caribbean (Antillean Dutch and Creole-Surinamese-Dutch) as well as Cape Verdean descent in Europe are however scarce. We aim to increase knowledge about rates and risk factors of girls of Caribbean and Cape Verdean descent living in the Netherlands. METHODS: We conducted logistic regression on a dataset that consisted of self-reported health and well-being surveys filled out by 5611 female students, age 14-16, in Rotterdam, the Netherlands (Antillean Dutch N = 357, Creole-Surinamese-Dutch N = 130, and Cape Verdean-Dutch N = 402, and Dutch 'natives' N = 4691). We studied if girls of these minority groups had elevated risk for attempted suicide. Risk indicators that were suspected to play a role were investigated i.e. household composition, socio-economic class, externalizing problems, emotional problems and sexual abuse. RESULTS: We found that rates of attempted suicide among Antillean (14%), Creole-Surinamese young women (15.4%) were higher than of 'native' Dutch girls (9.1%), while rates of Cape-Verdean girls (8.3%) were rather similar to those of 'native' girls. Not living with two biological parents was a risk factor for 'native' girls, but not for girls of Caribbean and Cape Verdean descent. Emotional problems and sexual abuse seems to be a risk indicator for suicidality across all ethnicities. Aggressive behaviour was a risk factor for Antillean Dutch and 'native' girls. CONCLUSIONS: Our findings underscore the need for developing suicide prevention programs for minority girls in multicultural cities in western Europe, in particular those of Caribbean descent. Results suggest the importance of addressing socio-economic class and educational background for suicide prevention, which bear particular relevance for Caribbean populations. Referral in the case of sexual trauma and low psychological wellbeing seems critical for reducing suicidal behaviour in girls, regardless of ethnicity. PMID- 29343241 TI - Clinical features and dysfunctions of iron metabolism in Parkinson disease patients with hyper echogenicity in substantia nigra: a cross-sectional study. AB - BACKGROUND: Transcranial ultrasound is a useful tool for providing the evidences for the early diagnosis and differential diagnosis of Parkinson disease (PD). However, the relationship between hyper echogenicity in substantia nigra (SN) and clinical symptoms of PD patients remains unknown, and the role of dysfunction of iron metabolism on the pathogenesis of SN hyper echogenicity is unclear. METHODS: PD patients was detected by transcranial sonography and divided into with no hyper echogenicity (PDSN-) group and with hyper echogenicity (PDSN+) group. Motor symptoms (MS) and non-motor symptoms (NMS) were evaluated, and the levels of iron and related proteins in serum and cerebrospinal fluid (CSF) were detected for PD patients. Data comparison between the two groups and correlation analyses were performed. RESULTS: PDSN+ group was significantly older, and had significantly older age of onset, more advanced Hohen-Yahr stage, higher SCOPA-AUT score and lower MoCA score than PDSN- group (P < 0.05). Compared with PDSN- group, the levels of transferrin and light-ferritin in serum and iron level in CSF were significantly elevated (P < 0.05), but ferroportin level in CSF was significantly decreased in PDSN+ group (P < 0.05). CONCLUSIONS: PD patients with hyper echogenicity in SN are older, at more advanced disease stage, have severer motor symptoms, and non-motor symptoms of cognitive impairment and autonomic dysfunction. Hyper echogenicity of SN in PD patients is related to dysfunction of iron metabolism, involving increased iron transport from peripheral system to central nervous system, reduction of intracellular iron release and excessive iron deposition in brain. PMID- 29343242 TI - Stage of cancer diagnoses among migrants from the former Soviet Union in comparison to the German population - are diagnoses among migrants delayed? AB - BACKGROUND: In this study, we compared stage at diagnosis, standardized incidence ratio (SIR) and standardized mortality ratio (SMR) of most frequent cancer diagnoses between re-settlers (Aussiedler) from the former Soviet Union and the general population in the Saarland in Germany to assess possible delays in diagnosis of cancer among this migrant group. METHODS: Lung cancer, colorectal cancer, breast cancer, prostate cancer, malignant melanoma of the skin and stomach cancer diagnoses among a cohort of 18,619 re-settlers living in the Saarland between 1990 and 2009 were identified by the federal state's cancer registry. Vital status was available for the respective time-period and used to calculate SIR and SMR in comparison to the autochthonous population. Tumor stages were condensed into local and advanced stages. Odds ratios (OR) for an advanced tumor stage were modeled in dependence of re-settler-status and relevant covariates by logistic regression. Missing values were addressed in a sensitivity analysis. The influence of duration of stay in Germany on advanced stage diagnosis was analyzed among re-settlers. RESULTS: SIR and SMR of lung and breast cancer were lower among female re-settlers, while SIR and SMR of colorectal and prostate cancer were lower among male re-settlers. SIR and SMR of stomach cancer were elevated among both sexes. Female re-settlers showed an elevated OR for being diagnosed with advanced stage breast cancer. Both male and female re settlers showed an elevated OR when observing all six sites combined (OR among males 1.47, p = 0.04; OR among females 1.37, p = 0.05). The result of elevated ORs was supported in the sensitivity analysis. Finally, male re-settlers showed a weak association between duration of stay in Germany and reduced risk for advanced stage diagnosis. CONCLUSION: Re-settlers were more likely to be diagnosed at an advanced tumor stage. These findings are in line with previous research having shown unfavorable health care utilization of re-settlers. Overall, low mortality rates despite an increased risk of advanced stage at diagnosis argue for a sufficient follow-up care, comparable to the autochthonous population. PMID- 29343243 TI - Retrospectively assessed psychosocial working conditions as predictors of prospectively assessed sickness absence and disability pension among older workers. AB - BACKGROUND: The aim was to explore the association between retrospectively assessed psychosocial working conditions during working life and prospectively assessed risk of sickness absence and disability pension among older workers. METHODS: The prospective risk of register-based long-term sickness absence (LTSA) and disability pension was estimated from exposure to 12 different psychosocial work characteristics during working life among 5076 older workers from the CAMB cohort (Copenhagen Aging and Midlife Biobank). Analyses were censored for competing events and adjusted for age, gender, physical work environment, lifestyle, education, and prior LTSA. RESULTS: LTSA was predicted by high levels of cognitive demands (HR 1.31 (95% CI 1.10-1.56)), high levels of emotional demands (HR 1.26 (95% CI 1.07-1.48)), low levels of influence at work (HR 1.30 (95% CI 1.03-1.64)), and high levels of role conflicts (HR 1.34 (95% CI 1.09 1.65)). Disability pension was predicted by low levels of influence at work (HR 2.73 (95% CI 1.49-5.00)) and low levels of recognition from management (HR 2.04 (95% CI 1.14-3.67)). CONCLUSIONS: This exploratory study found that retrospectively assessed high cognitive demands, high and medium emotional demands, low influence at work, low recognition from management, medium role clarity, and high role conflicts predicted LTSA and/or disability pension. PMID- 29343244 TI - Hsp70 at the membrane: driving protein translocation. AB - Efficient movement of proteins across membranes is required for cell health. The translocation process is particularly challenging when the channel in the membrane through which proteins must pass is narrow-such as those in the membranes of the endoplasmic reticulum and mitochondria. Hsp70 molecular chaperones play roles on both sides of these membranes, ensuring efficient translocation of proteins synthesized on cytosolic ribosomes into the interior of these organelles. The "import motor" in the mitochondrial matrix, which is essential for driving the movement of proteins across the mitochondrial inner membrane, is arguably the most complex Hsp70-based system in the cell. PMID- 29343245 TI - An unusual case of symptomatic deep vein thrombosis and pulmonary embolism after arthroscopic meniscus surgery. AB - BACKGROUND: Although thrombosis complication is rare after arthroscopic meniscus surgery, deep vein thrombosis and pulmonary embolism can be fatal. The associated risk factors and whether anticoagulant prevention after arthroscopic knee surgery is necessary have not reach consensus. Here we present a case of deep vein thrombosis and pulmonary embolism after a common arthroscopic meniscectomy. CASE PRESENTATION: The patient had no risk factors except ipsilateral leg varicose veins. She present swell at knee and calf from postoperative 3 weeks, and developed dyspnea, palpitation, and nausea on 33th day, pulmonary embolism was confirmed with CT angiography at emergency department. After thrombolysis and anticoagulation therapy were administered, the patient improved well and discharged. And the intravenous ultrasound confirmed thrombosis of popliteal vein and small saphenous vein. Who don't have common risk factors for venous thromboembolism. CONCLUSIONS: Despite the low incidence of thromboembolic complications after simple arthroscopy surgery, its life-threatening and devastating property make clinicians rethink the necessity of thromboprophylaxis and importance of preoperative relative risk factors screening. PMID- 29343246 TI - Influence of preoperative life satisfaction on recovery and outcomes after colorectal cancer surgery - a prospective pilot study. AB - BACKGROUND: Colorectal surgery has an important impact on a patient's quality of life, and postoperative rehabilitation shows large variations. To enhance the understanding of recovery after colorectal cancer, health-related quality of life has become a standard outcome measurement for clinical care and research. Therefore, we aimed to correlate the influence of preoperative global life satisfaction on subjective feelings of well-being with clinical outcomes after colorectal surgery. METHODS: In this pilot study of consecutive colorectal surgery patients, various dimensions of feelings of preoperative life satisfaction were assessed using a self-rated scale, which was validated in French. Both objective (length of stay and complications) and subjective (pain, subjective well-being and quality of sleep) indicators of recovery were evaluated daily during each patient's hospital stay. RESULTS: A total of 112 patients were included. The results showed a negative relationship between life satisfaction and postoperative complications and a significant negative correlation with the length of stay. Moreover, a significant positive correlation between life satisfaction and the combined subjective indicators of recovery was observed. CONCLUSION: We have shown the importance of positive preoperative mental states and global life satisfaction as characteristics that are associated with an improved recovery after colorectal surgery. Therefore, patients with a good level of life satisfaction may be better able to face the consequences of colorectal surgery, which is a relevant parameter in supportive cancer care. PMID- 29343247 TI - Consumption of sugar-sweetened beverages and artificially sweetened beverages from childhood to adulthood in relation to socioeconomic status - 15 years follow up in Norway. AB - BACKGROUND: In Norway, social inequalities in health and health-related behaviors have been reported despite the well-developed welfare state. The objective of the present study was to analyze; (i) the development in frequency of consumption of sugar-sweetened beverages (SSB) and artificially sweetened beverages (ASB) from childhood to adulthood; (ii) socioeconomic inequalities in the consumption of SSB and ASB using different indicators of socioeconomic status (SES); (iii) time trends in potential disparities in SSB and ASB consumption among different socioeconomic groups to assess the development in socioeconomic inequality from childhood to adulthood. METHODS: This study uses data from the Fruits and Vegetables Make the Marks (FVMM) longitudinal cohort, including participants (n = 437) from 20 random schools from two Norwegian counties. Data from the first survey in 2001 (mean age 11.8) and follow-up surveys in 2005 (mean age 15.5) and 2016 (mean age 26.5) were used. Consumption of SSB and ASB were measured using a food frequency questionnaire, which the participants completed at school in 2001 and 2005, and online in 2016. Various indicators of SES were included; in 2001, parental education and income were measured, in 2005, participants' educational intentions in adolescence were measured, and in 2016, participants' own education and income were measured. The main analyses conducted were linear mixed effects analysis of the repeated measures. RESULTS: Between 2001 and 2016, a decrease in frequency of consumption of SSB (2.8 v 1.3 times/week; p = < 0.001) and an increase in frequency of consumption of ASB (1.1 v 1.6 times/week; p = 0.002) were observed. Participants with a higher educational level in adulthood and higher educational intentions in adolescence had a significantly lower frequency of consumption of SSB at all time points (2001, 2005 and 2016). No significant widening (or narrowing) of inequalities were observed from childhood to adulthood. CONCLUSIONS: A decrease in consumption of SSB and an increase in consumption of ASB from childhood to adulthood were found. Participants with high SES consumed in general less SSB (but not ASB), however, results varied depending on SES indicator used. The established inequalities persisted from childhood to adulthood. PMID- 29343248 TI - Minimally invasive versus open Transforaminal lumbar Interbody fusion in obese patients: a meta-analysis. AB - BACKGROUND: Minimally invasive transforaminal lumbar interbody fusion (MI-TLIF) has been employed in increasing cases compared with open TLIF (Open-TLIF). However, it is uncertain whether the advantages of MI-TLIF can also be specifically applied in obese patients. Therefore, the current study was thereby carried out aiming to compare the outcomes of MI-TLIF with those of Open-TLIF in obese patients with lumbar degenerative diseases. METHODS: Electronic databases were systemically retrieved from construction to May 2017. Meanwhile, the odds ratio (OR), mean difference (MD) and 95% confidence intervals (CI) were determined. RESULTS: A total of 7 observational cohort studies were enrolled into the current meta-analysis. The results indicated that, compared with Open-TLIF group, MI-TLIF could remarkably reduce the operative time (P = 0.002), intraoperative blood loss (P < 0.001), postoperative drainage (P = 0.01), length of stay (P < 0.001) and incidence of complications (P < 0.001). In addition, MI TLIF could also lead to markedly lower early back pain-Visual Analog Scale (BP VAS) score than that of Open-TLIF (P < 0.001), but no statistically significant differences were found in Oswestry Disability Index (ODI), late BP-VAS, early leg pain-VAS (LP-VAS) and late LP-VAS scores. CONCLUSION: MI-TLIF may be a more preferred choice for obese patients undergoing spinal surgery. However, differences in the long-term functional and pain outcomes between MI-TLIF and Open-TLIF remain a source of controversy, which should be further verified in future randomized-control trials. PMID- 29343249 TI - microRNA-124 inhibits bone metastasis of breast cancer by repressing Interleukin 11. AB - BACKGROUND: Most patients with breast cancer in advanced stages of the disease suffer from bone metastases which lead to fractures and nerve compression syndromes. microRNA dysregulation is an important event in the metastases of breast cancer to bone. microRNA-124 (miR-124) has been proved to inhibit cancer progression, whereas its effect on bone metastases of breast cancer has not been reported. Therefore, this study aimed to investigate the role and underlying mechanism of miR-124 in bone metastases of breast cancer. METHODS: In situ hybridization (ISH) was used to detect the expression of miR-124 in breast cancer tissues and bone metastatic tissues. Ventricle injection model was constructed to explore the effect of miR-124 on bone metastasis in vivo. The function of cancer cell derived miR-124 in the differentiation of osteoclast progenitor cells was verified in vitro. Dual-luciferase reporter assay was conducted to confirm Interleukin-11 (IL-11) as a miR-124 target. The involvement of miR-124/IL-11 in the prognosis of breast cancer patients with bone metastasis was determined by Kaplan-Meier analysis. RESULTS: Herein, we found that miR-124 was significantly reduced in metastatic bone tissues from breast cancers. Down-regulation of miR 124 was associated with aggressive clinical characteristics and shorter bone metastasis-free survival and overall survival. Restoration of miR-124 suppressed, while inhibition of miR-124 promoted the bone metastasis of breast cancer cells in vivo. At the cellular level, gain of function and loss-of function assays indicated that cancer cell-derived miR-124 inhibited the survival and differentiation of osteoclast progenitor cells. At the molecular level, we demonstrated that IL-11 partially mediated osteoclastogenesis suppression by miR 124 using in vitro and in vivo assays. Furthermore, IL-11 levels were inversely correlated with miR-124, and up-regulation IL-11 in bone metastases was associated with a poor prognosis. CONCLUSIONS: Thus, the identification of a dysregulated miR-124/IL-11 axis helps elucidate mechanisms of breast cancer metastases to bone, uncovers new prognostic markers, and facilitates the development of novel therapeutic targets to treat and even prevent bone metastases of breast cancer. PMID- 29343250 TI - Evaluation of health status in patients with hepatitis c treated with and without interferon. AB - BACKGROUND: The evolution of technology in healthcare has increased the health care's costs and, the universal healthcare systems, in developed countries, need to ensure proper allocation of resources. Thus, the major issue is assessing the effectiveness of new medical technologies. The evaluation of quality of life in response to new treatments has become a key indicator in chronic conditions for which medical interventions are evaluated not only in terms of increasing the number of expected life years but also in terms of increasing quality of life. The aim of this observational study was to verify whether a simple instrument (EQ 5D-5 L) can capture variations in health-related quality of life (HRQoL) and allow us to evaluate the impact of different drug treatment protocols in patients with hepatitis C virus (HCV) on daily activities. METHODS: Sixty six patients with HCV were consecutively enrolled in the Hepatology Unit at the University Hospital of Catania "G. Rodolico". Sixteen patients received new direct-acting antiviral agents (DAAs) plus pegylated alpha interferon (Peg-alpha-IFN) protocol (Group A) and 50 DAAs IFN free protocol (Group B). The EQ-5D-5 L(r) questionnaire and visual analog scale (VAS) were given to both groups to calculate coefficient's utility. We used the EQ-5D-5 L Crosswalk Index Value Calculator to obtain the utility EQIndex and both parametric and non parametric tests for the statistical analysis. RESULTS: The biopsy taken at the beginning of treatment showed comparable cell damage in both groups. The difference in the VAS results was negative for patients who received protocols containing IFN (indicating decreased quality of life),whereas it was positive in patients treated with IFN free protocols. The baseline EQIndex did not reveal any differences between the two treatment groups. The post-treatment EQIndex was statistically better in the groups that received IFN-free therapy. CONCLUSIONS: When innovative treatments are introduced into clinical practice, assessing quality of life is mandatory to determine their benefits. The instruments used in the present study are effective in detecting the areas in which improvement has occurred. These instruments can be easily managed by general practitioners for follow up of progression of the disease and referred to the specialist. PMID- 29343251 TI - Effects of the isoflavone genistein in early life stages of the Senegalese sole, Solea senegalensis: role of the Survivin and proliferation versus apoptosis pathways. AB - BACKGROUND: Phytochemical flavonoids are widely distributed in the environment and are derived from many anthropogenic activities. The isoflavone genistein is a naturally occurring compound found in soya products that are habitual constituents of the aquafeeds. This isoflavone possesses oestrogenic biological activity and also apoptotic properties. The present study has been performed to determine the effects of the genistein in the early life stages of the flatfish Senegalese sole during the first month of larval life, and it is focused especially at the metamorphosis, analysing the expression transcript levels and the immunohistochemical protein patterns implicated in the cell proliferation and apoptosis pathways (proliferation cellular/PCNA, anti-apoptosis Survivin/BIRC-5, death receptors/Fas, and Caspases). RESULTS: The isoflavone genistein induced some temporal disrupting effects in several pro-apoptotic signalling pathways (Fas, CASP-6) at both genistein doses (3 mg/L and 10 mg/L), with increased Fas transcripts and also decreasing CASP-6 mRNA expression levels during metamorphic and post-metamorphic stages of the Senegalese sole. On the other hand, the anti apoptotic BIRC-5 expression levels were weakly down-regulated with both the highest and lowest doses, but all of these imbalances were stabilised to the baseline levels. In early life stages of the controls, the constitutive basal transcript levels were temporarily and differentially expressed, reaching the highest levels at the pre-metamorphosis phase, as especially in endotrophic larvae (i.e. BIRC-5 mRNA), as well as in the metamorphic (i.e. CASP-6 mRNA) and post-metamorphic stages (i.e. Fas mRNA). In general, through development, continuous and progressive increases in the protein patterns of cell proliferation-PCNA (e.g. mitotic nuclei), anti-apoptotic Survivin (e.g. haematopoietic system, brain, digestive system, gills) and CASP-2 and -6 (e.g. brain, gills, kidney, digestive system, vascular systems, among others) have been immunohistochemically detected. Besides, both the controls and genistein exposed larvae displayed parallel immunostaining protein patterns in the different organ systems and tissues. CONCLUSIONS: The transcriptional imbalances observed in the studied genes (BIRC-5, CASP-6, Fas) were only temporarily induced, and apparently no changes in the immunohistochemical protein patterns were detected. Thus, the isoflavone genistein caused not harmful effects in the development and metamorphosis of the Senegalese sole exposed to chronic environmentally relevant concentrations (3 and 10 mg/L). PMID- 29343252 TI - Insights into the genetics of blood pressure in black South African individuals: the Birth to Twenty cohort. AB - BACKGROUND: Cardiovascular diseases (CVDs) are the leading cause of non communicable disease deaths globally, with hypertension being a major risk factor contributing to CVDs. Blood pressure is a heritable trait, with relatively few genetic studies having been performed in Africans. This study aimed to identify genetic variants associated with variance in systolic (SBP) and diastolic (DBP) blood pressure in black South Africans. METHODS: Genotyping was performed using the Metabochip in a subset of participants (mixed sex; median age 17.9) and their adult female caregivers (median age 41.0) from the Birth to Twenty cohort (n = 1947). Data were analysed as a merged dataset (all participants and caregivers together) in GEMMA (v0.94.1) using univariate linear mixed models, incorporating a centered relatedness matrix to account for the relatedness between individuals and with adjustments for age, sex, BMI and principal components of the genotype information. RESULTS: Association analysis identified regions of interest in the NOS1AP (DBP: rs112468105 - p = 7.18 * 10-5 and SBP: rs4657181 - p = 4.04 * 10-5), MYRF (SBP: rs11230796 - p = 2.16 * 10-7, rs400075 - p = 2.88 * 10-7) and POC1B (SBP: rs770373 - p = 7.05 * 10-5, rs770374 - p = 9.05 * 10-5) genes and some intergenic regions (DACH1|LOC440145 (DBP: rs17240498 - p = 4.91 * 10-6 and SBP: rs17240498 - p = 2.10 * 10-5) and INTS10|LPL (SBP: rs55830938 - p = 1.30 * 10-5, rs73599609 - p = 5.78 * 10-5, rs73667448 - p = 6.86 * 10-5)). CONCLUSIONS: The study provided further insight into the contribution of genetic variants to blood pressure in black South Africans. Future functional and replication studies in larger samples are required to confirm the role of the identified loci in blood pressure regulation and whether or not these variants are African-specific. PMID- 29343253 TI - An integrated primary care approach for frail community-dwelling older persons: a step forward in improving the quality of care. AB - BACKGROUND: High-quality care delivery for frail older persons, many of whom have multiple complex needs, is among the greatest challenges faced by healthcare systems today. The Chronic Care Model (CCM) may guide quality improvement efforts for primary care delivery to frail older populations. Objectives of this study were to assess the implementation of interventions in CCM dimensions, and to investigate the quality of primary care as perceived by healthcare professionals, in practices following the Finding and Follow-up of Frail older persons (FFF) integrated care approach and those providing usual care. METHODS: Structured interviews were conducted with general practitioners (GPs) from 11 intervention practices and 4 control practices to assess the implementation of interventions. A longitudinal survey (12-month period, 2 measurement timepoints) was conducted to assess the quality of primary care as perceived by healthcare professionals (intervention and control GP practices) using the Assessment of Chronic Illness Care Short version (ACIC-S). Independent-samples t-tests were used to assess differences in ACIC-S scores between groups. Interviews were conducted with GPs from the intervention practices to gain a deeper understanding of their experiences with the FFF approach. RESULTS: Intervention practices implemented significantly more interventions congruent with (dimensions of) the CCM compared with control GP practices. With respect to the quality of primary care as perceived by healthcare professionals, mean ACIC-S scores for all CCM dimensions and overall mean ACIC-S scores were significantly higher in the intervention group than in the control group at the follow-up timepoint. The number of implemented interventions was associated positively with perceived quality of primary care (ACIC-S scores) at follow-up. Important motives of GPs to implement the FFF approach were the aging of the population and transformations in the primary care sector. Proactive care delivery and multidisciplinary collaboration were considered to be essential. Major challenges to the implementation and embedding of the FFF approach were structural financing and manpower, and the availability of a facilitating information and communication technology system. CONCLUSIONS: Our study showed that proactive, integrated care that is based on (elements of) the CCM may be a step forward in improving quality of care for frail older persons. PMID- 29343254 TI - Knowledge of cervical cancer and Pap smear among Uyghur women from Xinjiang, China. AB - BACKGROUND: Cervical cancer is a significant public health issue in Xinjiang China. In order to provide scientific basis for cervical cancer intervention in Xinjiang, women's knowledge of cervical cancer was investigated in this study. Besides, relations between Uyghur women's awareness and their age, educational background, yearly household were evaluated. METHODS: Questionnaire survey was conducted to 7100 Uyghur women from Karkax Hotan and Payzivat Kashgar during 2008 and 2009. Women aged 21 to 70 years, had sexual activity, no history of cervical lesion or cervical cancer were considered to be eligible to the study. Information include participants' socio-demographic background, personal data, awareness about Pap smear, about cervical cancer and HPV, sources of information acquisition was investigated. RESULTS: 65.1% of the 7100 respondents with primary education level, and 95.0% participants were farmers. Only 7.4% had undertaken Pap smears before, not aware of the importance of the test (97.4% of 7100) was the main reason for not performing Pap smears. 29.3% of total participants had heard about cervical cancer, and only 0.14% (10 out of 7100) had heard about HPV. Top three route of knowledge acquire were television advertises (39.1%), neighbors (21.0%) and health care providers (15.0%). Women younger than 40 years, with higher educational levels and higher income had better awareness of cervical cancer and more willing to accept regular Pap smears. CONCLUSIONS: Uyghur women in Xinjiang had poor knowledge of cervical cancer and HPV infection. Low awareness of women was associated with less household income and lower educational levels. TV shows and education from health care providers may increase women's participation in cervical cancer control and prevention. PMID- 29343255 TI - Inducible HIV RNA transcription assays to measure HIV persistence: pros and cons of a compromise. AB - With the increasing number of therapeutic strategies tested in humans to reduce the size of the latent reservoir, the development of a robust, precise and clinical trial scalable assay that measures the frequency of infected cells carrying inducible replication-competent HIV is urgently needed. The size of the pool of cells carrying replication-competent HIV is largely overestimated by DNA assays, as a result of a large proportion of defective viruses, and underestimated by co-culture outgrowth assays. New culture methods that measure the inducible HIV reservoir have been developed during the past few years. In these induction assays, CD4+ T cells from virally suppressed individuals are activated and HIV RNA is measured in cell extracts or cell supernatants. In this review, we summarize the principle and outcomes of these assays and discuss the potential of these methods in the evaluation of HIV eradication strategies. PMID- 29343256 TI - The effects of green cardamom supplementation on blood glucose, lipids profile, oxidative stress, sirtuin-1 and irisin in type 2 diabetic patients: a study protocol for a randomized placebo-controlled clinical trial. AB - BACKGROUND: It has been suggested that the antioxidant, anti-inflammatory and hypolipidemic activities of cardamom may improve diabetes. However, the effect of this spice has not been investigated in diabetic subjects. This study was planned to determine the effects of green cardamom on blood glucose, lipids and oxidative stress status in type 2 diabetic patients. METHODS/DESIGN: Eighty overweight or obese patients with type 2 diabetes will be selected. They will be randomly assigned to receive 3 g/d green cardamom or placebo for 10 weeks. The socio demographic, physical activity and 24-h food recall questionnaires will be collected for each subject. Weight, height and waist circumference will be measured. Determination of blood glucose, lipid profile, and oxidative stress biomarkers including serum levels of total antioxidant capacity (TAC), malondialdehyde (MDA), and glutathione peroxidase (GPx) and superoxide dismutase (SOD) in red blood cells will be performed. The homeostasis model assessment estimated insulin resistance (HOMA-IR) index and the quantitative insulin sensitivity check index (QUICKI) will be calculated. Also, serum levels of irisin, and Sirtuin1 (SIRT1) will be measured. DISCUSSION: This trial will be the first study to explore the effects of green cardamom supplementation on glycemic control, lipid profile and oxidative stress in patients with type 2 diabetes mellitus. The results from this trial will provide evidence on the efficacy of green cardamom in type 2 diabetes mellitus. TRIAL REGISTRATION NUMBER: ( http://www.irct.ir , identifier: IRCT2016042717254N5), Registration date: 23.11.2016. PMID- 29343257 TI - Pigmented villonodular synovitis in pediatric population: review of literature and a case report. AB - BACKGROUND: Pigmented villonodular synovitis (PVNS) is a rare proliferative process in children that mostly affects the knee joint. CASE PRESENTATION: The study follows the case of a 3-year-old boy presenting recurrent patellar dislocation and PVNS. Due to symptoms such as chronic arthritis, he had been taking prednisolone and methotrexate for 6 months before receiving a definitive diagnosis. After a period of showing no improvements from his treatment, he was referred to our center and was diagnosed with local PVNS using magnetic resonance imaging (MRI). The patient was treated for his patellar dislocation by way of open synovectomy, lateral retinacular release, and a proximal realignment procedure, with no recurrence after a 24-month follow-up. CONCLUSION: PVNS may appear with symptoms resembling juvenile idiopathic arthritis, thus the disease should be considered in differential diagnosis of any inflammatory arthritis in children. PVNS may also cause mechanical symptoms such as patellar dislocation. In addition to synovectomy, a realignment procedure can be a useful method of treatment. PMID- 29343258 TI - Mass-spectrometric profiling of cerebrospinal fluid reveals metabolite biomarkers for CNS involvement in varicella zoster virus reactivation. AB - BACKGROUND: Varicella zoster virus (VZV) reactivation spans the spectrum from uncomplicated segmental herpes zoster to life-threatening disseminated CNS infection. Moreover, in the absence of a small animal model for this human pathogen, studies of pathogenesis at the organismal level depend on analysis of human biosamples. Changes in cerebrospinal fluid (CSF) metabolites may reflect critical aspects of host responses and end-organ damage in neuroinfection and neuroinflammation. We therefore applied a targeted metabolomics screen of CSF to three clinically distinct forms of VZV reactivation and infectious and non infectious disease controls in order to identify biomarkers for CNS involvement in VZV reactivation. METHODS: Metabolite profiles were determined by targeted liquid chromatography-mass spectrometry in CSF from patients with segmental zoster (shingles, n = 14), facial nerve zoster (n = 16), VZV meningitis/encephalitis (n = 15), enteroviral meningitis (n = 10), idiopathic Bell's palsy (n = 11), and normal pressure hydrocephalus (n = 15). RESULTS: Concentrations of 88 metabolites passing quality assessment clearly separated the three VZV reactivation forms from each other and from the non-infected samples. Internal cross-validation identified four metabolites (SM C16:1, glycine, lysoPC a C26:1, PC ae C34:0) that were particularly associated with VZV meningoencephalitis. SM(OH) C14:1 accurately distinguished facial nerve zoster from Bell's palsy. Random forest construction revealed even more accurate classifiers (signatures comprising 2-4 metabolites) for most comparisons. Some of the most accurate biomarkers correlated only weakly with CSF leukocyte count, indicating that they do not merely reflect recruitment of inflammatory cells but, rather, specific pathophysiological mechanisms. Across all samples, only the sum of hexoses and the amino acids arginine, serine, and tryptophan correlated negatively with leukocyte count. Increased expression of the metabolites associated with VZV meningoencephalitis could be linked to processes relating to neuroinflammation/immune activation, neuronal signaling, and cell stress, turnover, and death (e.g., autophagy and apoptosis), suggesting that these metabolites might sense processes relating to end-organ damage. CONCLUSIONS: The results provide proof-of-concept for the value of CSF metabolites as (1) disease associated signatures suggesting pathophysiological mechanisms, (2) degree and nature of neuroinflammation, and (3) biomarkers for diagnosis and risk stratification of VZV reactivation and, likely, neuroinfections due to other pathogens. TRIAL REGISTRATION: Not applicable (non-interventional study). PMID- 29343259 TI - Influence of apocynin on cardiac remodeling in rats with streptozotocin-induced diabetes mellitus. AB - BACKGROUND: Increased reactive oxygen species (ROS) generation in diabetes mellitus (DM) is an important mechanism leading to diabetic cardiomyopathy. Apocynin, a drug isolated from the herb Picrorhiza kurroa, is considered an antioxidant agent by inhibiting NADPH oxidase activity and improving ROS scavenging. This study analyzed the influence of apocynin on cardiac remodeling in diabetic rats. METHODS: Six-month-old male Wistar rats were assigned into 4 groups: control (CTL, n = 15), control + apocynin (CTL + APO, n = 20), diabetes (DM, n = 20), and diabetes + apocynin (DM + APO, n = 20). DM was induced by streptozotocin. Seven days later, apocynin (16 mg/kg/day) or vehicle was initiated and maintained for 8 weeks. Left ventricular (LV) histological sections were used to analyze interstitial collagen fraction. NADPH oxidase activity was evaluated in LV samples. Comparisons between groups were performed by ANOVA for a 2 * 2 factorial design followed by the Bonferroni post hoc test. RESULTS: Body weight (BW) was lower and glycemia higher in diabetic animals. Echocardiogram showed increased left atrial diameter, LV diastolic diameter, and LV mass indexed by BW in both diabetic groups; apocynin did not affect these indices. LV systolic function was impaired in DM groups and unchanged by apocynin. Isovolumic relaxation time was increased in DM groups; transmitral E/A ratio was higher in DM + APO compared to DM. Myocardial functional evaluation through papillary muscle preparations showed impaired contractile and relaxation function in both DM groups at baseline conditions. After positive inotropic stimulation, developed tension (DT) was lower in DM than CTL. In DM + APO, DT had values between those in DM and CTL + APO and did not significantly differ from either group. Myocardial interstitial collagen fraction was higher in DM than CTL and did not differ between DM + APO and CTL + APO. Serum activity of antioxidant enzymes glutathione peroxidase, superoxide dismutase (SOD), and catalase was lower in DM than CTL; apocynin restored catalase and SOD levels in DM + APO. Myocardial NADPH oxidase activity did not differ between groups. CONCLUSION: Apocynin restores serum antioxidant enzyme activity despite unchanged myocardial NADPH oxidase activity in diabetic rats. PMID- 29343261 TI - Prenatal exposure to perfluoroalkyl and polyfluoroalkyl substances and childhood atopic dermatitis: a prospective birth cohort study. AB - BACKGROUND: Perfluoroalkyl and polyfluoroalkyl substances (PFASs) have been reported to suppress immune function. However, previous studies on prenatal exposure to PFASs and allergic disorders in offspring provided inconsistent results. We aimed to examine the association between prenatal exposure to PFASs and childhood atopic dermatitis (AD) in offspring up to 24 months of age. METHODS: A prospective birth cohort study involving 1056 pregnant women was conducted in two hospitals in Shanghai from 2012 to 2015. Prenatal information was collected by an interview with the women and from medical records. Fetal umbilical cord blood was collected at birth. Cord blood plasma PFASs were measured. Children were followed at 6, 12 and 24 months and information on the development of AD was recorded. AD was diagnosed by 2 dermatologists independently based on the questionnaires. Multiple logistic regression was used to compute odds ratio (OR) and corresponding 95% confidence interval (CI) for the association between AD and each PFASs, adjusting for potential confounders. RESULTS: A total of 687 children completed a 2-year follow-up visit and had PFASs measurement. AD was diagnosed in 173 (25.2%) children during the first 24 months. In female children, a log-unit increase in perfluorooctanoic acid (PFOA) was associated with a 2.1-fold increase in AD risk (AOR 2.07, 95% CI 1.13-3.80) after adjusting for potential confounders. The corresponding risk was 2.22 (1.07-4.58) for perfluorononanoic acid (PFNA). The highest PFOA quartile was significantly associated with AD (2.52, 1.12-5.68) compared with the lowest quartile. The highest quartile of PFNA, perfluorodecanoic acid (PFDA) and perfluorohexane sulfonic acid (PFHxS) were associated with AD with AOR (95% CI) being 2.14 (0.97 4.74), 2.14 (1.00-4.57), and 2.30 (1.03-5.15), respectively. Additionally, the second quartile of perfluorododecanoic acid (PFDoA) was associated with a 3.2 fold increase in AD risk (3.24, 1.44-7.27). However, no significant associations were found in male children. CONCLUSIONS: Prenatal exposure to PFOA, PFDA, PFDoA and PFHxS significantly increased the risk of childhood AD in female children during the first 24 months of life. In addition, the associations between AD with prenatal exposure to PFNA were close to statistical significance. PMID- 29343260 TI - Liquid biomarkers in melanoma: detection and discovery. AB - A vast array of tumor-derived genetic, proteomic and cellular components are constantly released into the circulation of cancer patients. These molecules including circulating tumor DNA and RNA, proteins, tumor and immune cells are emerging as convenient and accurate liquid biomarkers of cancer. Circulating cancer biomarkers provide invaluable information on cancer detection and diagnosis, prognosticate patient outcomes, and predict treatment response. In this era of effective molecular targeted treatments and immunotherapies, there is now an urgent need to implement use of these circulating biomarkers in the clinic to facilitate personalized therapy. In this review, we present recent findings in circulating melanoma biomarkers, examine the challenges and promise of evolving technologies used for liquid biomarker discovery, and discuss future directions and perspectives in melanoma biomarker research. PMID- 29343262 TI - What motivates medical students to select medical studies: a systematic literature review. AB - BACKGROUND: There is a significant shortage of health workers across and within countries. It is of utmost importance to determine the factors that motivate students to opt for medical studies. The objective of this study is to group and review all the studies that investigated the motivational factors that underpin students' selection of medical study in recent years. METHODS: The literature search was carried out by two researchers independently in PubMed, Google Scholar, Wiley and IndMED databases for articles published from year 2006 till 2016. A total of 38 combinations of MeSH words were used for search purpose. Studies related to medical students and interns have been included. The application of inclusion and exclusion criteria and PRISMA guidelines for reporting systematic review led to the final selection of 24 articles. RESULTS: The majority of the studies (n = 16; 66.6%) were from high-income countries followed by an equal number from upper-middle and lower-middle income countries (n = 4,16.7%). None of the studies were from low-income countries. All of the studies were cross-sectional in nature. The main motivating factors that emerged were scientific (interest in science / medicine, social interest and academia, flexible work hours and work independence), societal (prestige, job security, financial security) and humanitarian (serving the poor and under priviledged) in high-, upper-middle and lower-middle income countries, respectively. The findings were comparable to Maslow's hierarchy of needs theory of motivation. CONCLUSION: This systematic review identifies the motivational factors influencing students to join medical studies in different parts of the globe. These factors vary per country depending on the level of income. This study offers cues to policy makers and educators to formulate policy in order to tackle the shortage of health workers, i.e. medical doctors. However, more research is needed to translate health policy into concrete and effective measures. PMID- 29343263 TI - Knowledge, use, and disuse of unconventional food plants. AB - BACKGROUND: People's diets are usually restricted to a small number of plant species, even in regions with great diversity. We investigated the knowledge of residents in Ribeirao da Ilha, a district of Florianopolis (Santa Catarina, Brazil), about unconventional food plants (UFP). We report the UFP of the region, the parts used, the methods of processing, and the reasons for reduced use or even lack of use. METHODS: From June 2014 to January 2015, we interviewed 26 long established residents and made free listings of plant resources in the region. We also did three guided tours, and 24 residents (among the 26) checked pictures of the mentioned plants in order to identify them. RESULTS: We identified 63 species distributed in 25 botanical families. Half of the species were mentioned only by one informant. The fruit was the most frequently used part (80% of citations), consumed mainly without processing. Among those species, 27% were used exclusively in the past. The residents attributed non-use to the difficulty in locating the plants and loss of interest in the resource. CONCLUSION: Urbanization and environmental restrictions contribute to the difficulty of access to UFP. Encouraging residents to continue using UFP is necessary to perpetuate this threatened knowledge, promote a more diversified and healthier diet, stimulate a greater interaction among people and nature, and promote on farm conservation of edible plants. PMID- 29343265 TI - RNase If -treated quantitative PCR for dsRNA quantitation of RNAi trait in genetically modified crops. AB - BACKGROUND: RNA interference (RNAi) technology has been widely used to knockdown target genes via post-transcriptional silencing. In plants, RNAi is used as an effective tool with diverse applications being developed such as resistance against insects, fungi, viruses, and metabolism manipulation. To develop genetically modified (GM) RNAi traits for insect control, a transgene is created and composed of an inversely-repeated sequence of the target gene with a spacer region inserted between the repeats. The transgene design is subject to form a self-complementary hairpin RNA (hpRNA) and the active molecules are > 60 bp doubled-stranded RNA (dsRNA) derived from the hpRNA. However, in some cases, an undesirable intermediate such as single-stranded RNA (ssRNA) may be formed, which is not an active molecule. The aforementioned characteristics of RNAi traits lead to increase the challenges for RNAi-derived dsRNA quantitation. RESULTS: To quantify the dsRNA and distinguish it from the ssRNA in transgenic maize, an analytical tool is required to be able to effectively quantify dsRNA which contains a strong secondary structure. Herein, we develop a modified qRT-PCR method (abbreviated as RNase If -qPCR) coupled with a ssRNA preferred endonuclease (i.e., RNase If). This method enables the precise measurement of the active molecules (i.e., dsRNA) derived from RNAi traits of GM crops and separately quantifies the dsRNA from ssRNA. Notably, we also demonstrate that the RNase If -qPCR is comparable to a hybridization-based method (Quantigene Plex 2.0). CONCLUSIONS: To our best knowledge, this is the first report of a method combining RNase If with modified qRT-PCR protocol. The method represents a reliable analytical tool to quantify dsRNA for GM RNAi crops. It provides a cost effective and feasible analytical tool for general molecular laboratory without using additional equipment for other methods. The RNase If -qPCR method demonstrates high sensitivity (to 0.001 pg/ MUL of dsRNA), precision and accuracy. In this report, we demonstrated the deployment of this method to characterize the RNAi events carrying v-ATPase C in maize during trait development process. The method can be utilized in any application which requires the dsRNA quantification such as double-stranded RNA virus or sprayable dsRNA as herbicide. PMID- 29343264 TI - Associations between circulating adipokines and bone mineral density in patients with knee osteoarthritis: a cross-sectional study. AB - BACKGROUND: Associations between adipokines and bone mineral density (BMD) in knee osteoarthritis (OA) remain indistinct. The aim of this study was to investigate the cross-sectional associations between serum levels of adipokines and BMD in patients with knee OA. METHODS: This study included 164 patients with symptomatic knee OA from the Anhui Osteoarthritis study. Serum levels of leptin, adiponectin, and resistin were measured using an enzyme-linked immunosorbent assay (ELISA). BMD at total body, spine, hip, and femur were measured by dual energy X-ray absorptiometry (DXA). RESULTS: In multivariable analyses, serum levels of leptin were significantly associated with reduced BMD at total body, hip, total femur, femoral neck, and femoral shaft (beta = - 0.019, 95% CI -0.034 to - 0.005; beta = - 0.018, 95% CI -0.034 to - 0.003; beta = - 0.018, 95% CI 0.034 to - 0.002; beta = - 0.016, 95% CI -0.032 to 0.000; beta = - 0.026, 95% CI 0.046 to - 0.006; respectively). Serum levels of adiponectin were significantly and negatively associated with BMD at total femur and femoral shaft (beta = - 0.007, 95% CI -0.013 to 0.000; beta = - 0.011, 95% CI -0.018 to - 0.003; respectively). However, no significant associations were found between serum levels of resistin and BMD at any site measured. CONCLUSIONS: Serum levels of leptin and adiponectin were significantly and negatively associated with BMD, suggesting potentially detrimental effects of leptin and adiponectin on BMD in knee OA patients. PMID- 29343266 TI - Identification of pain categories associated with change in pain in patients receiving placebo: data from two phase 3 randomized clinical trials in symptomatic knee osteoarthritis. AB - BACKGROUND: Pain is the principal clinical symptom of osteoarthritis (OA), and development of safe and effective analgesics for OA pain is needed. Drug development of new analgesics for OA pain is impaired by substantial change in pain in patients receiving placebo, and more data describing clinical characteristics and pain categories particularly associated with this phenomenon is needed. The purpose of this post-hoc analysis was to investigate clinical characteristics and pain categories and their association with radiographic progression and placebo pain reduction (PPR) in OA patients as measured the Western Ontario and McMasters Arthritis (WOMAC). METHODS: Pooled data from the placebo groups of two phase III randomized clinical trials in patients with knee OA followed for 2 years were analyzed. Differences between individual sub-scores and pain categories of weight-bearing and non-weight bearing pain over time were assessed. Selected patient baseline characteristics were assessed for association with PPR. Association between pain categories and radiographic progression was analyzed. RESULTS: The reduction of pain in placebo-treated patients was significantly higher in the composite of questions related to weight-bearing pain compared to non-weight-bearing pain of the target knee. Baseline BMI, age and JSW were not associated with pain change. Pain reduction was higher in the Target knee, compared to the Non-Target knee at all corresponding time-points. A very weak correlation was found between weight-bearing pain and progression in the non target knee. CONCLUSIONS: These results indicate that the reduction in pain in patients treated with placebo is significantly different between pain categories, as weight-bearing pain was significantly more reduced compared to non-weight bearing pain. Further research in pain categories in OA is warranted. TRIAL REGISTRATION: NCT00486434 (trial 1) and NCT00704847 (trial 2). PMID- 29343267 TI - TIPE2 suppresses progression and tumorigenesis of esophageal carcinoma via inhibition of the Wnt/beta-catenin pathway. AB - BACKGROUND: Esophageal carcinoma is the eighth prevalent malignancy and ranks the sixth in carcinoma-related death worldwide. Tumor necrosis factor-alpha-induced protein-8 like-2 (TIPE2) has been identified as a tumor suppressor in multiple carcinomas. However, its roles and molecular mechanisms underlying esophageal carcinoma progression are still undefined till now. METHODS: RT-qPCR assay was employed to detect the expression of TIPE2 mRNA. TIPE2 protein expression was measured by using western blot assay. Ad-V and Ad-TIPE2 adenoviruses were constructed to overexpress TIPE2. The effects of TIPE2 overexpression on cell proliferation, invasion and apoptosis were assessed by MTT and Edu incorporation assays, transwell invasion assay and flow cytometry analysis, respectively. The effect of TIPE2 overexpression on xenograft tumor growth was determined by measuring tumor volume and weight, together with immunohistochemistry assay. The effect of TIPE2 overexpression on the Wnt/beta-catenin signaling pathway was evaluated by detecting the protein levels of beta-catenin, c-Myc and cyclinD1 in EC9076 cells and xenograft tumors of esophageal carcinoma. RESULTS: TIPE2 expression was downregulated in esophageal carcinoma tissues and cells. Adenovirus-mediated TIPE2 overexpression suppressed cell proliferation and invasion, and induced apoptosis in esophageal carcinoma cells. Enforced expression of TIPE2 inhibited tumor growth in vivo, as evidenced by the reduced tumor volume, tumor weight and proliferating cell nuclear antigen expression. Overexpression of TIPE2 inhibited the Wnt/beta-catenin signaling pathway in esophageal carcinoma in vitro and in vivo. CONCLUSIONS: These results suggest that TIPE2 suppressed progression and tumorigenesis of esophageal carcinoma via inhibition of the Wnt/beta-catenin pathway. PMID- 29343268 TI - Time-homogeneous Markov process for HIV/AIDS progression under a combination treatment therapy: cohort study, South Africa. AB - BACKGROUND: As HIV enters the human body, its main target is the CD4 cell which it turns into a factory that produces millions of other HIV particles. These HIV particles target new CD4 cells resulting in the progression of HIV infection to AIDS. A continuous depletion of CD4 cells results in opportunistic infections, for example tuberculosis (TB). The purpose of this study is to model and describe the progression of HIV/AIDS disease in an individual on antiretroviral therapy (ART) follow up using a continuous time homogeneous Markov process. A cohort of 319 HIV infected patients on ART follow up at a Wellness Clinic in Bela Bela, South Africa is used in this study. Though Markov models based on CD4 cell counts is a common approach in HIV/AIDS modelling, this paper is unique clinically in that tuberculosis (TB) co-infection is included as a covariate. METHODS: The method partitions the HIV infection period into five CD4-cell count intervals followed by the end points; death, and withdrawal from study. The effectiveness of treatment is analysed by comparing the forward transitions with the backward transitions. The effects of reaction to treatment, TB co-infection, gender and age on the transition rates are also examined. The developed models give very good fit to the data. RESULTS: The results show that the strongest predictor of transition from a state of CD4 cell count greater than 750 to a state of CD4 between 500 and 750 is a negative reaction to drug therapy. Development of TB during the course of treatment is the greatest predictor of transitions to states of lower CD4 cell count. Transitions from good states to bad states are higher on male patients than their female counterparts. Patients in the cohort spend a greater proportion of their total follow-up time in higher CD4 states. CONCLUSION: From some of these findings we conclude that there is need to monitor adverse reaction to drugs more frequently, screen HIV/AIDS patients for any signs and symptoms of TB and check for factors that may explain gender differences further. PMID- 29343269 TI - Microglial activation mediates chronic mild stress-induced depressive- and anxiety-like behavior in adult rats. AB - BACKGROUND: Depression is a heterogeneous disorder, with the exact neuronal mechanisms causing the disease yet to be discovered. Recent work suggests it is accompanied by neuro-inflammation, characterized, in particular, by microglial activation. However, microglial activation and its involvement in neuro inflammation and stress-related depressive disorders are far from understood. METHODS: We utilized multiple detection methods to detect the neuro-inflammation in the hippocampus of rats after exposure to chronic mild stress (CMS). Male Sprague Dawley (SD) rats were subjected to chronic mild stressors for 12 weeks. Microglial activation and hippocampal neuro-inflammation were detected by using a combinatory approach of in vivo [18F] DPA-714 positron emission computed tomography (PET) imaging, ionized calcium-binding adapter molecule 1 and translocator protein (TSPO) immunohistochemistry, and detection of NOD-like receptor protein 3 (NLRP3) inflammasome and some inflammatory mediators. Then, the rats were treated with minocycline during the last 4 weeks to observe its effect on hippocampal neuro-inflammation and depressive-like behavior induced by chronic mild stress. RESULTS: The results show that 12 weeks of chronic mild stress induced remarkable depressive- and anxiety-like behavior, simultaneously causing hippocampal microglial activation detected by PET, immunofluorescence staining, and western blotting. Likewise, activation of NLRP3 inflammasome and upregulation of inflammatory mediators, such as interleukin-1beta (IL-1beta), IL 6, and IL-18, were also observed in the hippocampus after exposure to chronic stress. Interestingly, the anti-inflammatory mediators, such as IL-4 and IL-10, were also increased in the hippocampus following chronic mild stress, which may hint that chronic stress activates different types of microglia, which produce pro-inflammatory cytokines or anti-inflammatory cytokines. Furthermore, chronic minocycline treatment alleviated the depressive-like behavior induced by chronic stress and significantly inhibited microglial activation. Similarly, the activation of NLRP3 inflammasome and the increase of inflammatory mediators were not exhibited or significantly less marked in the minocycline treatment group. CONCLUSION: These results together indicate that microglial activation mediates the chronic mild stress-induced depressive- and anxiety-like behavior and hippocampal neuro-inflammation. PMID- 29343271 TI - p66Shc gene expression in peripheral blood mononuclear cells and progression of diabetic complications. AB - BACKGROUND: The risk of diabetic complications is modified by genetic and epigenetic factors. p66Shc drives the hyperglycaemic cell damage and its deletion prevents experimental diabetic complications. We herein tested whether p66Shc expression in peripheral blood mononuclear cells (PBMCs) predicts adverse outcomes in people with diabetes. METHODS: In a cohort of 100 patients with diabetes (16 type 1 and 84 type 2), we quantified baseline p66Shc expression in PBMCs by quantitative PCR. Patients were extensively characterized for demographics, anthropometrics, biochemical data, prevalence of complications, and medications. With a pseudo-prospective design, we retrieved cardiovascular death, major adverse cardiovascular events (MACE), and new occurrence of micro- or macroangiopathy during follow-up. RESULTS: At baseline, patients were on average 60 year old, with 10-year diabetes duration, and overall poor glycaemic control (HbA1c 7.8%). Patients with high versus low p66Shc expression (based on median value) had very similar baseline characteristics. Average p66Shc expression did not differ by presence/absence of complications. During a median 5.6-year follow up, the primary endpoint of cardiovascular death or MACE occurred in 22 patients, but no relation was detected between cardiovascular outcomes and p66Shc expression. In patients who developed new complications at follow-up, baseline p66Shc was significantly higher, especially for macroangiopathy. The incidence of new macroangiopathy was > 3-times higher in patients with high versus those with low baseline p66Shc expression. CONCLUSIONS: p66Shc expression in PBMCs was not associated with prevalent diabetic complications but predicted new onset of complications, especially macroangiopathy, although no relation with hard cardiovascular endpoints was detected. PMID- 29343270 TI - Isolation and characterization of olfactory ecto-mesenchymal stem cells from eight mammalian genera. AB - BACKGROUND: Stem cell-based therapies are an attractive option to promote regeneration and repair defective tissues and organs. Thanks to their multipotency, high proliferation rate and the lack of major ethical limitations, "olfactory ecto-mesenchymal stem cells" (OE-MSCs) have been described as a promising candidate to treat a variety of damaged tissues. Easily accessible in the nasal cavity of most mammals, these cells are highly suitable for autologous cell-based therapies and do not face issues associated with other stem cells. However, their clinical use in humans and animals is limited due to a lack of preclinical studies on autologous transplantation and because no well-established methods currently exist to cultivate these cells. Here we evaluated the feasibility of collecting, purifying and amplifying OE-MSCs from different mammalian genera with the goal of promoting their interest in veterinary regenerative medicine. Biopsies of olfactory mucosa from eight mammalian genera (mouse, rat, rabbit, sheep, dog, horse, gray mouse lemur and macaque) were collected, using techniques derived from those previously used in humans and rats. The possibility of amplifying these cells and their stemness features and differentiation capability were then evaluated. RESULTS: Biopsies were successfully performed on olfactory mucosa without requiring the sacrifice of the donor animal, except mice. Cell populations were rapidly generated from olfactory mucosa explants. These cells displayed similar key features of their human counterparts: a fibroblastic morphology, a robust expression of nestin, an ability to form spheres and similar expression of surface markers (CD44, CD73). Moreover, most of them also exhibited high proliferation rates and clonogenicity with genus-specific properties. Finally, OE-MSCs also showed the ability to differentiate into mesodermal lineages. CONCLUSIONS: This article describes for the first time how millions of OE-MSCs can be quickly and easily obtained from different mammalian genera through protocols that are well-suited for autologous transplantations. Moreover, their multipotency makes them relevant to evaluate therapeutic application in a wide variety of tissue injury models. This study paves the way for the development of new fundamental and clinical studies based on OE-MSCs transplantation and suggests their interest in veterinary medicine. PMID- 29343272 TI - Biotechnologies that empower transgender persons to self-actualize as individuals, partners, spouses, and parents are defining new ways to conceive a child: psychological considerations and ethical issues. AB - Today, thanks to biomedical technologies advances, some persons with fertility issues can conceive. Transgender persons benefit also from these advances and can not only actualize their self-identified sexual identities but also experience parenthood. Based on clinical multidisciplinary seminars that gathered child psychiatrists and psychoanalysts interested in the fields of assisted reproduction technology (ART) and gender dysphoria, philosophers interested in bioethics, biologists interested in ART, and endocrinologists interested in pubertal suppression, we explore how new biotechnical advances, whether in gender transition or procreation, could create new ways to conceive a child possible. After reviewing the various medical/surgical techniques for physical gender transition and the current ART options, we discuss how these new ways for persons to self-actualize and to experience parenthood can not only improve the condition of transgender persons (and the human condition as a whole through greater equity) but also introduce some elements of change in the habitual patterns of thinking especially in France. Finally, we discuss the ethical issues that accompany the arrival of these children and provide creative solutions to help society handle, accept, and support the advances made in this area. PMID- 29343273 TI - INPP4B promotes cell survival via SGK3 activation in NPM1-mutated leukemia. AB - BACKGROUND: Acute myeloid leukemia (AML) with mutated nucleophosmin (NPM1) has been recognized as a distinct leukemia entity in the 2016 World Health Organization (WHO) classification. The genetic events underlying oncogenesis in NPM1-mutated AML that is characterized by a normal karyotype remain unclear. Inositol polyphosphate 4-phosphatase type II (INPP4B), a new factor in the phosphoinositide-3 kinase (PI3K) pathway-associated cancers, has been recently found a clinically relevant role in AML. However, little is known about the specific mechanistic function of INPP4B in NPM1-mutated AML. METHODS: The INPP4B expression levels in NPM1-mutated AML primary blasts and AML OCI-AML3 cell lines were determined by qRT-PCR and western blotting. The effect of INPP4B knockdown on OCI-AML3 leukemia cell proliferation was evaluated, using the Cell Counting Kit-8 and colony formation assay. After INPP4B overexpression or knockdown, the activation of serum and glucocorticoid-regulated kinase 3 (SGK3) and AKT was assessed. The effects of PI3K signaling pathway inhibitors on the levels of p SGK3 in OCI-AML3 cells were tested. The mass of PI (3,4) P2 and PI (3) P was analyzed by ELISA upon INPP4B overexpression. Knockdown of SGK3 by RNA interference and a rescue assay were performed to confirm the critical role of SGK3 in INPP4B-mediated cell survival. In addition, the molecular mechanism underlying INPP4B expression in NPM1-mutated leukemia cells was explored. Finally, Kaplan-Meier survival analysis was conducted on the NPM1-mutated AML cohort stratified into quartiles for INPP4B expression in The Cancer Genome Atlas (TCGA) dataset. RESULTS: High expression of INPP4B was observed in NPM1-mutated AML. Knockdown of INPP4B repressed cell proliferation in OCI-AML3 cells, whereas recovered INPP4B rescued this inhibitory effect in vitro. Mechanically, INPP4B enhanced phosphorylated SGK3 (p-SGK3) status, but did not affect AKT activation. SGK3 was required for INPP4B-induced cell proliferation in OCI-AML3 cells. High levels of INPP4B were at least partially caused by the NPM1 mutant via ERK/Ets-1 signaling. Finally, high expression of INPP4B showed a trend towards lower overall survival and event-free survival in NPM1-mutated AML patients. CONCLUSIONS: Our results indicate that INPP4B promotes leukemia cell survival via SGK3 activation, and INPP4B might be a potential target in the treatment of NPM1 mutated AML. PMID- 29343274 TI - Coexistent sickle-cell anemia and autoimmune disease in eight children: pitfalls and challenges. AB - BACKGROUND: Patients with sickle cell disease (SCD) present a defective activation of the alternate complement pathway that increases the risk of infection and is thought to predispose to autoimmune disease (AID). However, coexisting AID and SCD is rarely reported, suggesting possible underdiagnosis due to an overlapping of the symptoms. STUDY DESIGN: Among 603 patients with SCD followed between 1999 and June 2016, we retrospectively searched for patients with coexisting SCD and AID. RESULTS: We identified 8 patients aged from 7 to 17 years diagnosed with AID; juvenile idiopathic arthritis (n = 3), systemic lupus erythematosus (n = 2), Sjogren's syndrome (n = 1) and autoimmune hepatitis (n = 2). The diagnosis of AID was often delayed due to similarities of the symptoms with those of SCD. Patients treated with steroids experienced multiple vaso occlusive crises and received prophylactic chronic blood transfusions when it was possible. Tolerance to other immunosuppressive and biological treatments, such as anti-TNF agents, was good. A remission of AID was achieved in 4 patients, without worsening the course of the SCD. One patient underwent a geno-identical hematopoietic stem cell transplantation that cured both diseases. Another one underwent a successful liver transplantation. CONCLUSION: Coexistence of AID and SCD generates diagnostic and therapeutic challenges. Early diagnosis of AID is important to define the best treatment, which may include targeted biological therapy. PMID- 29343275 TI - Early Babesia canis transmission in dogs within 24 h and 8 h of infestation with infected pre-activated male Dermacentor reticulatus ticks. AB - BACKGROUND: This study was designed to assess the ability of fed male Dermacentor reticulatus ticks to transmit Babesia canis to dogs after being detached from previous canine or ovine hosts. METHODS: The study was an exploratory, parallel group design conducted in two trials. All the animals were sero-negative for babesiosis prior to enrolment. In a first trial, donor dogs and donor sheep were infested with Babesia canis infected male and uninfected female ticks for 72 h. The ticks were detached and the second group of host dogs were infested for 24 h before tick removal. In a second trial, the experiment was repeated but the donor animals were infested for 88 h and the second group of host dogs were infested for 8 h prior to tick removal. After infestation, the dogs were maintained under clinical surveillance and blood samples were collected for blood smear, IFA and PCR analysis. A dog was considered infected if any of these tests were positive. RESULTS: All of the dogs (6 out of 6) were infected after being exposed to pre activated male ticks for 24 h. Half of the dogs were infected after being exposed to pre-activated ticks for 8 h: 1 out of 3 dogs infested with ticks removed from sheep and 2 out of 3 dogs infested with ticks removed from dog. All the infected dogs were positive to blood smear, IFA and PCR. Three of these dogs exhibited elevated body temperature (> 39.4 degrees C). CONCLUSIONS: This study demonstrates the ability of male D. reticulatus to transmit B. canis to dogs. The study also illustrates for the first time that, regardless of the first host on which ticks may attach and start feeding, Babesia canis can be transmitted to dogs within 8 h of infestation. Since no minimal transmission time can be established for all possible natural situations, a strategy of prevention based on anti-attachment or repellency is recommended. PMID- 29343277 TI - First molecular detection and genetic characterization of Coxiella burnetii in Zambian dogs and rodents. AB - Coxiella burnetii, the causative agent of Q fever, is a zoonotic pathogen associated with sylvatic or domestic transmission cycles, with rodents being suspected to link the two transmission cycles. Infection and subsequent disease in humans has historically been associated with contact with infected livestock, especially sheep. However, recently there have been reports of Q fever outbreaks associated with contact with infected rodents and dogs. Studies exploring the potential role of these animal hosts in the epidemiology of Q fever in many developing countries in Africa are very limited. This study aimed to determine the potential role of rodents and dogs in the epidemiological cycle of C. burnetti in Zambia. Using pathogen-specific polymerase chain reaction assays targeting the 16S rRNA gene, C. burnetii was detected for the first time in 45% of rodents (9/20), in one shrew and in 10% of domestic dogs (15/150) screened in Zambia. Phylogenetic characterization of six samples based on the isocitrate synthase gene revealed that the strains were similar to a group of isolates from chronic human Q fever patients, goats and rodents reported in multiple continents. Considering the close proximity of domestic dogs and rodents to humans, especially in resource-limited communities, the presence of C. burnetii in these animals could be of significant public health importance. It is thus important to determine the burden of Q fever in humans in such resource-limited communities where there is close contact between humans, rodents and dogs. PMID- 29343276 TI - The antihyperlipidemic effects of fullerenol nanoparticles via adjusting the gut microbiota in vivo. AB - BACKGROUND: Nanoparticles (NPs) administered orally will meet the gut microbiota, but their impacts on microbiota homeostasis and the consequent physiological relevance remain largely unknown. Here, we describe the modulatory effects and the consequent pharmacological outputs of two orally administered fullerenols NPs (Fol1 C60(OH)7(O)8 and Fol113 C60(OH)11(O)6) on gut microbiota. RESULTS: Administration of Fol1 and Fol113 NPs for 4 weeks largely shifted the overall structure of gut microbiota in mice. The bacteria belonging to putative short chain fatty acids (SCFAs)-producing genera were markedly increased by both NPs, especially Fol1. Dynamic analysis showed that major SCFAs-producers and key butyrate-producing gene were significantly enriched after treatment for 7-28 days. The fecal contents of SCFAs were consequently increased, which was accompanied by significant decreases of triglycerides and total cholesterol levels in the blood and liver, with Fol1 superior to Fol113. Under cultivation in vitro, fullerenols NPs can be degraded by gut flora and exhibited a similar capacity of inulin to promote SCFA-producing genera. The differential effects of Fol1 and Fol113 NPs on the microbiome may be attributable to their subtly varied surface structures. CONCLUSIONS: The two fullerenol NPs remarkably modulate the gut microbiota and selectively enrich SCFA-producing bacteria, which may be an important reason for their anti-hyperlipidemic effect in mice. PMID- 29343278 TI - Lipoblastoma: a clinicopathologic review of 23 cases from a major tertiary care center plus detailed review of literature. AB - OBJECTIVE: Lipoblastoma is a rare neoplasm that occurs mostly in infants and children. Although benign, it has a tendency for local recurrence. RESULTS: Clinical and pathological features of 23 cases of lipoblastoma described. Patients' age ranged from 8 months to 18 years with mean and median age 4.1 and 2.5 years, respectively. Male:female ratio was 2.8:1. Most common sites were lower extremities (9 cases), followed by abdominal cavity and retroperitoneum (4 cases), and scrotum/groin (3 cases). Grossly, 22 tumors were well circumscribed and multi nodular. All cases showed lobules composed of adipocytes and lipoblasts with intervening fibrous septa and fine vascular network. Myxoid change, capsule formation and septation were seen in all cases. Zonation was seen in 2 cases. Follow-up was available in 14 out of 23 patients. Of these, 13 were alive and free of disease with no evidence of any recurrent lesion. One patient with a mediastinal infiltrating lipoblastoma experienced 4 recurrences. Lipoblastoma is a benign adipocytic neoplasm of infants and young children. Correlation of clinical and histological features helps in reaching a correct diagnosis. Owing to a high recurrence rate following incomplete resection, a complete resection is essential. Prognosis is excellent after complete resection. PMID- 29343279 TI - Spatial distribution and habitat characterization of mosquito species during the dry season along the Mara River and its tributaries, in Kenya and Tanzania. AB - BACKGROUND: Vector-borne diseases are increasingly becoming a major health problem among communities living along the major rivers of Africa. Although larger water bodies such as lakes and dams have been extensively researched, rivers and their tributaries have largely been ignored. This study sought to establish the spatial distribution of mosquito species during the dry season and further characterize their habitats along the Mara River and its tributaries. METHODS: In this cross-sectional survey, mosquito larvae were sampled along the Mara River, its two perennial tributaries (Amala and Nyangores), drying streams, and adjacent aquatic habitats (e.g. swamps, puddles that receive direct sunlight [open sunlit puddles], rock pools, hippo and livestock hoof prints, and vegetated pools). Each habitat was dipped 20 times using a standard dipper. Distance between breeding sites and human habitation was determined using global positioning system coordinates. The collected mosquito larvae were identified using standard taxonomic keys. Water physico-chemical parameters were measured in situ using a multiparameter meter. Mean mosquito larvae per habitat type were compared using analysis of variance and chi-square tests, while the relationship between mosquito larvae and physico-chemical parameters was evaluated using a generalized linear mixed model. The Cox-Stuart test was used to detect trends of mosquito larvae distribution. The test allowed for verification of monotonic tendency (rejection of null hypothesis of trend absence) and its variability. RESULTS: A total of 4001 mosquito larvae were collected, of which 2712 (67.8%) were collected from river/stream edge habitats and 1289 (32.2%) were sampled from aquatic habitats located in the terrestrial ecosystem about 50 m away from the main river/streams. Anopheles gambiae s.s, An. arabiensis, and An. funestus group, the three most potent vectors of malaria in Sub-Saharan Africa, together with other anopheline mosquitoes, were the most dominant mosquito species (70.3%), followed by Culex quinquefasciatus and Cx. pipiens complex combined (29.5%). Drying streams accounted for the highest number of larvae captured compared to the other habitat types. A stronger relationship between mosquito larvae abundance and dissolved oxygen (Z = 7.37, P <= 0.001), temperature (Z = 7.65, P <= 0.001), turbidity (Z = -5.25, P <= 0.001), and distance to the nearest human habitation (Z = 4.57, P <= 0.001), was observed. CONCLUSIONS: Presence of malaria and non-malaria mosquito larvae within the Mara River basin calls for immediate action to curtail the insurgence of vector-borne diseases within the basin. A vector control program should be conducted during the dry period, targeting drying streams shown to produce the highest number of larval mosquitoes. PMID- 29343280 TI - Pregabalin versus placebo in targeting pro-nociceptive mechanisms to prevent chronic pain after whiplash injury in at-risk individuals - a feasibility study for a randomised controlled trial. AB - BACKGROUND: Whiplash-associated disorders (WAD) are an enormous and costly burden to Australian society. Up to 50% of people who experience a whiplash injury will never fully recover. Whiplash is resistant to treatment and no early management approach has yet been shown to prevent chronic pain. The early presence of central sensitization is associated with poor recovery. Pregabalin's effects on central sensitization indicate the potential to prevent or modulate these processes after whiplash injury and to improve health outcomes, but this has not been investigated. This paper describes the protocol for a feasibility study for a randomised controlled trial of pregabalin plus evidence-based advice compared to placebo plus evidence-based advice for individuals with acute whiplash injury who are at risk of poor recovery. METHODS: This double blind, placebo-controlled randomised feasibility study will examine the feasibility and potential effectiveness of pregabalin and evidence-based advice (intervention) compared to placebo and evidence-based advice (control) for individuals with acute whiplash injury at risk of poor recovery. Thirty participants (15 per group) aged 18-65 years with Grade II WAD, within 48 hours of injury and currently experiencing at least moderate pain (NRS: >= 5/10) will be recruited from Emergency Departments of public hospitals in Queensland, Australia. Pregabalin will be commenced at 75 mg bd and titrated up to 300 mg bd as tolerated for 4 weeks followed by 1 week of weaning. RESULTS: The feasibility of trial procedures will be tested, as well as the potential effect of the intervention on the outcomes. The primary outcome of neck pain intensity at 3 months from randomisation will be compared between the treatment groups using standard analysis of variance techniques. DISCUSSION: Feasibility and potential effectiveness data will inform an appropriately powered full trial, which if successful, will provide an effective and cost-effective intervention for a costly and treatment resistant condition. It will also have implications for the early management of other traumatic conditions beyond whiplash. TRIAL REGISTRATION: Clinical Trials Primary Registry: Australian and New Zealand Clinical Trials Registry. CLINICAL TRIAL REGISTRATION NUMBER: ACTRN12617000059369 . Date of Registration: 11/01/2017. Primary Trial Sponsor: The University of Queensland, Brisbane QLD 4072 Australia. PMID- 29343281 TI - P-MAPA immunotherapy potentiates the effect of cisplatin on serous ovarian carcinoma through targeting TLR4 signaling. AB - BACKGROUND: Toll-like receptors (TLRs) are transmembrane proteins expressed on the surface of ovarian cancer (OC) and immune cells. Identifying the specific roles of the TLR-mediated signaling pathways in OC cells is important to guide new treatments. Because immunotherapies have emerged as the adjuvant treatment for patients with OC, we investigated the effect of a promising immunotherapeutic strategy based on protein aggregate magnesium-ammonium phospholinoleate palmitoleate anhydride (P-MAPA) combined with cisplatin (CIS) on the TLR2 and TLR4 signaling pathways via myeloid differentiation factor 88 (MyD88) and TLR associated activator of interferon (TRIF) in an in vivo model of OC. METHODS: Tumors were chemically induced by a single injection of 100 MUg of 7,12 dimethylbenz(a)anthracene (DMBA) directly under the left ovarian bursa in Fischer 344 rats. After the rats developed serous papillary OC, they were given P-MAPA, CIS or the combination P-MAPA+CIS as therapies. To understand the effects of the treatments, we assessed the tumor size, histopathology, and the TLR2- and TLR4 mediated inflammatory responses. RESULTS: Although CIS therapy was more effective than P-MAPA in reducing the tumor size, P-MAPA immunotherapy significantly increased the expressions of TLR2 and TLR4. More importantly, the combination of P-MAPA with CIS showed a greater survival rate compared to CIS alone, and exhibited a significant reduction in tumor volume compared to P-MAPA alone. The combination therapy also promoted the increase in the levels of the following OC related proteins: TLR4, MyD88, TRIF, inhibitor of phosphorylated NF-kB alpha (p IkBalpha), and nuclear factor kappa B (NF-kB p65) in both cytoplasmic and nuclear sites. While P-MAPA had no apparent effect on tumor necrosis factor alpha (TNF alpha) and interleukin (IL)-6, it seems to increase interferon-gamma (IFN-gamma), which may induce the Thelper (Th1)-mediated immune response. CONCLUSION: Collectively, our results suggest that P-MAPA immunotherapy combined with cisplatin could be considered an important therapeutic strategy against OC cells based on signaling pathways activated by TLR4. PMID- 29343282 TI - Investigation of perioperative safety and clinical results of one-stage bilateral total knee arthroplasty in selected low-risk patients. AB - BACKGROUND: An increased perioperative complication rate has been a concern with one-stage bilateral total knee arthroplasty (TKA). The purpose of this study was to retrospectively investigate the perioperative safety and clinical results of one-stage bilateral TKA in selected low-risk patients. METHODS: Sixty-seven patients who received one-stage bilateral TKAs for osteoarthritis who were American Society of Anesthesiology (ASA) class 1 or 2 were included in this study. Perioperative complications, blood loss, transfusion rate, blood laboratory results, and clinical results were evaluated up to 1 year after surgery. RESULTS: No major complications (deep infection, pulmonary embolism, cerebrovascular accident, myocardial infarction, death, or removal or revision of the implants) were observed. The average total blood loss was 1139.5 ml. The transfusion rate was 95.5%. Postoperative hemoglobin level and C-reactive protein level gradually improved up to postoperative day 21 (P < 0.01). Bilateral knee extension knee angles and clinical scores improved postoperatively as compared with preoperative values (P < 0.01). CONCLUSIONS: Although total blood loss and transfusion rate can be high, this preliminary case series suggested that the one stage bilateral TKA in ASA class 1 or 2 patients can have high perioperative safety levels, and good clinical results can be obtained up to 1 year after surgery. If low-risk patients are selected for bilateral TKA, a one-stage procedure can be beneficial for patients, with a minimal increase in the risk of complications. PMID- 29343283 TI - The Classroom Communication Resource (CCR) intervention to change peer's attitudes towards children who stutter (CWS): study protocol for a randomised controlled trial. AB - BACKGROUND: Children who stutter (CWS) are at a high-risk of being teased and bullied in primary school because of negative peer attitudes and perceptions towards stuttering. There is little evidence to determine if classroom-based interventions are effective in changing peer attitudes towards stuttering. The primary objective is to determine the effect of the Classroom Communication Resource (CCR) intervention versus usual practice, measured using the Stuttering Resource Outcomes Measure (SROM) 6-months post-intervention among grade 7 students. The secondary objective is to investigate attitude changes towards stuttering among grade participants on the SROM subscales. METHODS: A cluster randomised controlled trial (RCT) will be conducted with schools as the unit of randomization. Schools will be stratified into quintile groups, and then randomized to receive the CCR intervention or usual practice. Quintile stratification will be conducted in accordance to the Western Cape Department of Education classification of schools according to geographical location, fee per school and allocation of resources and funding. Participants will include primary schools in the lower (second and third) and higher (fourth and fifth) quintiles and children aged 11 years or older in grade 7 will be included. The study will consist of the CCR intervention program or usual practice as a no-CCR control. The CCR is a classroom-based, teacher led intervention tool including a story, role-play and discussion. The grade 7 teachers allocated to the CCR intervention, will be trained and will administer the intervention. The analysis will follow intention-to-treat (ITT) principle and generalized estimating equations (GEE) to compare groups on the global SROM and its subscales to account for possible clustering within schools. The subgroup hypothesis will be tested by adding an interaction term of quintile group x intervention. DISCUSSION: This study is designed to assess whether the CCR intervention versus usual practice in schools will lead to positive shift in attitudes about stuttering at 6-months post intervention among grade 7 participants. TRIAL REGISTRATION: The trial number is NCT03111524 . It was registered with clinical trials.gov Protocol registration and results system (PRS) retrospectively on 9 March 2017. PMID- 29343284 TI - Extensive ARMC5 genetic variance in primary bilateral macronodular adrenal hyperplasia that started with exophthalmos: a case report. AB - BACKGROUND: Primary bilateral macronodular adrenal hyperplasia is a rare cause of Cushing's syndrome characterized by the presence of bilateral secretory adrenal nodules. Recent studies have shown that primary bilateral macronodular adrenal hyperplasia is caused by combined germline and somatic mutations of the ARMC5 gene. Exophthalmos is an underappreciated sign of Cushing's syndrome. CASE PRESENTATION: A 52-year-old Chinese woman with progressively worsening bilateral proptosis presented to our hospital. Subsequently she was diagnosed as having primary bilateral macronodular adrenal hyperplasia and underwent bilateral laparoscopic adrenalectomy. Genomic deoxyribonucleic acid was isolated from lymphocytes as well as seven different adrenal nodules and the ARMC5 sequence was determined by Sanger sequencing. We identified one heterozygous ARMC5 germline mutation c.682C>T (p. Gln228*) and five heterozygous somatic mutations (c.310delG, c.347_357del11, c.267delC, c.283_289del7, and c.205-322del118) in five different adrenal nodules. All mutations are novel and were not found in any of the available online databases. To test whether the ARMC5 mutation induced messenger ribonucleic acid decay, real-time reverse transcriptase polymerase chain reaction was performed on patient and control adrenal tissue. We found that the adrenal cortex of our patient showed a low ARMC5 messenger ribonucleic acid expression compared with normal adrenal cortex, possibly as a result of nonsense mediated messenger ribonucleic acid decay CONCLUSIONS: We demonstrated extensive genetic diversity of ARMC5 in a patient with primary bilateral macronodular adrenal hyperplasia that started with exophthalmos, which contributes to further understanding of the pathogenesis of this disease. Early recognition of atypical symptoms and screening for ARMC5 mutation in patients with primary bilateral macronodular adrenal hyperplasia has important clinical implications for the diagnosis and genetic counseling. PMID- 29343285 TI - Cyberbullying a modern form of bullying: let's talk about this health and social problem. AB - Cyberbullying or electronic aggression has already been designated as a serious public health threat. Cyberbullying should also be considered as a cause for new onset psychological symptoms, somatic symptoms of unclear etiology or a drop in academic performance. Pediatricians should be trained to play a major role in caring for and supporting the social and developmental well-being of children. PMID- 29343287 TI - Percutaneous kyphoplasty for the treatment of very severe osteoporotic vertebral compression fractures with spinal canal compromise. AB - BACKGROUND: Very severe osteoporotic vertebral compression fractures (vsOVCFs) are osteoporotic vertebral compression fractures with vertebral body collapse to less than one third of their original height. Few data are available about the use of percutaneous kyphoplasty (PKP) in treating vsOVCFs with spinal canal compromise. The aim of this study was to evaluate the safety and efficacy of percutaneous kyphoplasty (PKP) for the treatment of vsOVCFs with spinal canal compromise. METHODS: Thirty-five patients who suffered vsOVCFs with spinal canal compromise but without neurological deficits were treated by PKP between January 2009 and October 2014. The vertebral height, local kyphotic angle (LKA), visual analogue scale (VAS) and Oswestry Disability Index (ODI) values were assessed before the operation, 1 day after the operation and at the final follow-up. RESULTS: Significant improvements on the VAS and ODI were noted 1 day post operatively (p < 0.01), and these results were preserved at the final follow-up. The vertebral height was restored and the LKA was improved after surgery (p < 0.01). No neurological deterioration was found. Five of 35 vertebrae (14.3%) of cement leakages were all asymptomatic. Four new OVCFs in three patients were identified. CONCLUSION: PKP is a safe and effective procedure for the treatment of vsOVCFs with spinal canal compromise, achieving significant vertebral height restoration and kyphotic angle reduction and leading to a significant pain relief and improvement in function. PMID- 29343286 TI - Diagnosis and management of transthyretin familial amyloid polyneuropathy in Japan: red-flag symptom clusters and treatment algorithm. AB - Hereditary ATTR (ATTRm) amyloidosis (also called transthyretin-type familial amyloid polyneuropathy [ATTR-FAP]) is an autosomal-dominant, adult-onset, rare systemic disorder predominantly characterized by irreversible, progressive, and persistent peripheral nerve damage. TTR gene mutations (e.g. replacement of valine with methionine at position 30 [Val30Met (p.Val50Met)]) lead to destabilization and dissociation of TTR tetramers into variant TTR monomers, which form amyloid fibrils that deposit in peripheral nerves and various organs, giving rise to peripheral and autonomic neuropathy and several non-disease specific symptoms.Phenotypic and genetic variability and non-disease-specific symptoms often delay diagnosis and lead to misdiagnosis. Red-flag symptom clusters simplify diagnosis globally. However, in Japan, types of TTR variants, age of onset, penetrance, and clinical symptoms of Val30Met are more varied than in other countries. Hence, development of a Japan-specific red-flag symptom cluster is warranted. Presence of progressive peripheral sensory-motor polyneuropathy and >=1 red-flag sign/symptom (e.g. family history, autonomic dysfunction, cardiac involvement, carpal tunnel syndrome, gastrointestinal disturbances, unexplained weight loss, and immunotherapy resistance) suggests ATTR-FAP. Outside of Japan, pharmacotherapeutic options are first-line therapy. However, because of positive outcomes (better life expectancy and higher survival rates) with living donor transplant in Japan, liver transplantation remains first line treatment, necessitating a Japan-specific treatment algorithm.Herein, we present a consolidated review of the ATTR-FAP Val30Met landscape in Japan and summarize findings from a medical advisory board meeting held in Tokyo on 18th August 2016, at which a Japan-specific ATTR-FAP red-flag symptom cluster and treatment algorithm was developed. Beside liver transplantation, a TTR stabilizing agent (e.g. tafamidis) is a treatment option. Early diagnosis and timely treatment using the Japan-specific red-flag symptom cluster and treatment algorithm might help guide clinicians regarding apt and judicious use of available treatment modalities. PMID- 29343288 TI - Changes in the secretome of tri-dimensional spheroid-cultured human mesenchymal stem cells in vitro by interleukin-1 priming. AB - BACKGROUND: Mesenchymal stem cells (MSCs) are one of the most promising candidates for the treatment of major neurological disorders. Desirable therapeutic properties of MSCs include reparative and regenerative potential but, despite their proven safety, the efficacy of MSCs remains controversial. Therefore, it is essential to optimise culture protocols to enhance the therapeutic potential of the MSC secretome. Here we aimed to: assess the increase in secretion of cytokines that may induce repair, regeneration, or immunomodulation when cultured in three dimensions; study the effect of interleukin (IL)-1 priming on two- (2D) and three-dimensional (3D) cultures of MSC; and evaluate the potential use of the modified secretome using microglial MSC co-cultures. METHODS: We established a 3D spheroid culture of human MSCs, and compared the secretome in 2D and 3D cultures under primed (IL-1) and unprimed conditions. BV2 microglial cells were stimulated with lipopolysaccharide (LPS) and treated with spheroid conditioned media (CM) or were co-cultured with whole spheroids. Concentrations of secreted cytokines were determined by enzyme-linked immunosorbent assay (ELISA). Protein arrays were used to further evaluate the effect of IL-1 priming in 2D and 3D cultures. RESULTS: 3D culture of MSCs significantly increased secretion of the IL-1 receptor antagonist (IL-1Ra), vascular endothelial growth factor (VEGF), and granulocyte-colony stimulating factor (G-CSF) compared with 2D culture, despite priming treatments with IL-1 being more effective in 2D than in 3D. The addition of CM of 3D-MSCs reduced LPS induced tumour necrosis factor (TNF)-alpha secretion from BV2 cells, while the 3D spheroid co-cultured with the BV2 cells induced an increase in IL-6, but had no effect on TNF-alpha release. Protein arrays indicated that priming treatments trigger a more potent immune profile which is necessary to orchestrate an effective tissue repair. This effect was lost in 3D, partly because of the overexpression of IL-6. CONCLUSIONS: Increased secretion of anti-inflammatory markers occurs when MSCs are cultured in 3D, but this specific secretome did not translate into anti-inflammatory effects on LPS-treated BV2 cells in co-culture. These data highlight the importance of optimising priming treatments and culture conditions to maximise the therapeutic potential of MSC spheroids. PMID- 29343289 TI - Differentiated thyroid carcinoma presentation may be more aggressive in children and adolescents than in young adults. AB - BACKGROUND: The available studies concerning the influence of age on the phenotypical expression of differentiated thyroid carcinoma (DTC) have hitherto compared DTC presentation either between pre-pubertal and pubertal children or between pediatric patients and aged adults; aim of this study was to ascertain for the first time whether presentation of DTC may significantly vary according to age, even within a peculiar study population covering only young patients aged less than 30 years. METHODS: The main clinical, biochemical and pathologic data at DTC diagnosis were retrospectively recorded in 2 selected cohorts including, respectively, 18 children and adolescents aged less than 18 years (Group A) or 45 young adults aged between 20 and 29.8 years (Group B). RESULTS: The statistical distribution of DTC cases in the different age ranges was found to progressively increase with increasing age; furthermore, the patients of Group A exhibited at diagnosis a more severe clinical involvement and a higher rate of extra-regional metastases; finally, also the association with both autoimmune thyroid diseases (AITDs) and a biochemical hypothyroid pattern was more common in Group A patients. CONCLUSIONS: In a study population younger than 30 years: a) the risk of developing DTC increases with age, achieving its zenith during the 3rd decade of life; b) clinical presentation is more severe in children and adolescents younger than 18 years than in the patients aged between 20 and 30; c) in the cohort of children and adolescents DTC is more often associated with AITDs, which might play some role in conditioning the more aggressive phenotypical presentation of DTC in this patient group. PMID- 29343291 TI - Trends in the performance of quality indicators for diabetes care in the community and in diabetes-related health status: an Israeli ecological study. AB - BACKGROUND: Israel is one of the few countries that have a national program for quality assessment of community healthcare. We aimed to evaluate whether improved performance in diabetes care was associated with improved health of diabetic patients on a national level. METHODS: We conducted a nationwide ecological study estimating improvements in diabetes-related quality indicators and health outcomes. We estimated both correlations between composite measures of diabetes related quality indicators and selected outcomes, and assessed through a joinpoint analysis whether trends in selected outcomes changed 4 years after the inception of the national program. RESULTS: Between 2002 and 2010, the prevalence of diabetes in Israeli adults increased from 4.8% to 7.4%. During these years, an improvement was noticed in most quality indicators (from 53% to 75% for the composite score). Declines were noted in rates of blindness, diabetes-related end stage kidney disease, lower limbs amputations and diabetes-related mortality. Significant accelerations in decline were noted for amputations in men and diabetes-related mortality in both Arab men and women 4 years after the inception of the national program. CONCLUSION: This study suggests that Israel's national program for quality indicators in diabetes care in the community has probably had a significant impact on the health status of the whole population and may have contributed to narrowing gaps in life expectancy between Israeli Jews and Arabs. Future studies based on individual-level data are needed to confirm these results. PMID- 29343290 TI - FineMAV: prioritizing candidate genetic variants driving local adaptations in human populations. AB - We present a new method, Fine-Mapping of Adaptive Variation (FineMAV), which combines population differentiation, derived allele frequency, and molecular functionality to prioritize positively selected candidate variants for functional follow-up. We calibrate and test FineMAV using eight experimentally validated "gold standard" positively selected variants and simulations. FineMAV has good sensitivity and a low false discovery rate. Applying FineMAV to the 1000 Genomes Project Phase 3 SNP dataset, we report many novel selected variants, including ones in TGM3 and PRSS53 associated with hair phenotypes that we validate using available independent data. FineMAV is widely applicable to sequence data from both human and other species. PMID- 29343292 TI - Global trends in the awareness of sepsis: insights from search engine data between 2012 and 2017. AB - BACKGROUND: Sepsis is an established global health priority with high mortality that can be curtailed through early recognition and intervention; as such, efforts to raise awareness are potentially impactful and increasingly common. We sought to characterize trends in the awareness of sepsis by examining temporal, geographic, and other changes in search engine utilization for sepsis information seeking online. METHODS: Using time series analyses and mixed descriptive methods, we retrospectively analyzed publicly available global usage data reported by Google Trends (Google, Palo Alto, CA, USA) concerning web searches for the topic of sepsis between 24 June 2012 and 24 June 2017. Google Trends reports aggregated and de-identified usage data for its search products, including interest over time, interest by region, and details concerning the popularity of related queries where applicable. Outlying epochs of search activity were identified using autoregressive integrated moving average modeling with transfer functions. We then identified awareness campaigns and news media coverage that correlated with epochs of significantly heightened search activity. RESULTS: A second-order autoregressive model with transfer functions was specified following preliminary outlier analysis. Nineteen significant outlying epochs above the modeled baseline were identified in the final analysis that correlated with 14 awareness and news media events. Our model demonstrated that the baseline level of search activity increased in a nonlinear fashion. A recurrent cyclic increase in search volume beginning in 2012 was observed that correlates with World Sepsis Day. Numerous other awareness and media events were correlated with outlying epochs. The average worldwide search volume for sepsis was less than that of influenza, myocardial infarction, and stroke. CONCLUSIONS: Analyzing aggregate search engine utilization data has promise as a mechanism to measure the impact of awareness efforts. Heightened information-seeking about sepsis occurs in close proximity to awareness events and relevant news media coverage. Future work should focus on validating this approach in other contexts and comparing its results to traditional methods of awareness campaign evaluation. PMID- 29343293 TI - Identification of preoperative prediction factors of tumor subtypes for patients with solitary ground-glass opacity pulmonary nodules. AB - BACKGROUND: Recent wide spread use of low-dose helical computed tomography for the screening of lung cancer have led to an increase in the detection rate of very faint and smaller lesions known as ground-glass opacity nodules. The purpose of this study was to investigate the clinical factors of lung cancer patients with solitary ground-glass opacity pulmonary nodules on computed tomography. METHODS: A total of 423 resected solitary ground-glass opacity nodules were retrospectively evaluated. We analyzed the clinical, imaging and pathological data and investigated the clinical differences in patient with adenocarcinoma in situ / minimally invasive adenocarcinoma and those with invasive adenocarcinoma. RESULTS: Three hundred and ninety-three adenocarcinomas (92.9%) and 30 benign nodules were diagnosed. Age, the history of family cancer, serum carcinoembryonic antigen level, tumor size, ground-glass opacity types, and bubble-like sign in chest CT differed significantly between adenocarcinoma in situ / minimally invasive adenocarcinoma and invasive adenocarcinoma (p:0.008, 0.046, 0.000, 0.000, 0.000 and 0.001). Receiver operating characteristic curves and univariate analysis revealed that patients with more than 58.5 years, a serum carcinoembryonic antigen level > 1.970 MUg/L, a tumor size> 13.50 mm, mixed ground-glass opacity nodules and a bubble-like sign were more likely to be diagnosed as invasive adenocarcinoma. The combination of five factors above had an area under the curve of 0.91, with a sensitivity of 82% and a specificity of 87%. CONCLUSION: The five-factor combination helps us to distinguish adenocarcinoma in situ / minimally invasive adenocarcinoma from invasive adenocarcinoma and to perform appropriate surgery for solitory ground-glass opacity nodules. PMID- 29343294 TI - Effect of glycaemic control on complications following cardiac surgery: literature review. AB - INTRODUCTION: No uniform consensus in the UK or Europe exists, for glycaemic management of patients with Diabetes or pre-diabetes undergoing cardiac surgery. OBJECTIVE: [i] Determine the relationship between glycaemic control and cardiac surgical outcomes; [ii] Compare current vs gold standard management of patients with Diabetes or pre-diabetes undergoing cardiac surgery. METHODS: Searches of MEDLINE, NHS Evidence and Web of Science databases were completed. Articles were limited to those in English, German and French. No date limit was enforced.13,232 articles were identified on initial literature review, and 50 relevant papers included in this review. RESULTS: No national standards for glycaemic control prior to cardiac surgery were identified. Upto 30% of cardiac surgical patients have undiagnosed Diabetes. Cardiac surgical patients without Diabetes with pre operative hyperglycaemia have a 1 year mortality double that of patients with normoglyacemia, and equivalent to patients already diagnosed with Diabetes. Pre- and peri-operative hyperglycaemia is associated with worse outcomes. Evidence regarding tight glycaemic control vs moderate glycaemic control is conflicting. Tight control may be more effective in patients without Diabetes with pre-/peri operative hyperglycaemia, and moderate control appears more effective in patients with pre-existing Diabetes. Patients with well controlled Diabetes may achieve comparable outcomes to patients without Diabetes with similar glycaemic control. CONCLUSIONS: Pre / peri-operative hyperglycaemia is associated with worse outcomes in both patients with, and without Diabetes undergoing CABG. This review supports the pre-operative screening, and optimisation of glycaemic control in patients undergoing cardiac surgery. Optimal glycaemic management remains unclear and clear guidelines are needed. PMID- 29343295 TI - Cytotoxic T lymphocytes from cattle sharing the same MHC class I haplotype and immunized with live Theileria parva sporozoites differ in antigenic specificity. AB - OBJECTIVES: The objective of this study was to assess whether cytotoxic T cells (CTL) generated by the live vaccine, known as "ITM Muguga cocktail", which is used for the cattle disease East Cost fever (ECF) in Sub-Saharan Africa, showed a broad reactivity against many different strains of the causative parasite Theileria parva. We also assessed whether immune responses were similar in cattle expressing the same MHC class I haplotypes. RESULTS: The antigenic specificity of CTL from MHC class I-matched cattle vaccinated with the Muguga cocktail were different. Three cattle of MHC class I haplotype A18, one A18/A19 and two haploidentical (A18v/A12) animals, showed differential recognition of autologous cells infected with a panel of T. parva isolates. This could have implications in the field where certain strains could break through the vaccine. Furthermore, neither of the haploidentical cattle recognized the CTL epitope (Tp1214-224), presented by the A18 haplotype, in contrast to the third animal, showing differences in immunodominance in animals of the same haplotype A18. This suggests that the CTL specificities following immunization with the Muguga cocktail can vary even between haploidentical individuals and that some parasite strains may break through immunity generated by the Muguga cocktail. PMID- 29343296 TI - Quantitative method for analysis of six anticoagulant rodenticides in faeces, applied in a case with repeated samples from a dog. AB - BACKGROUND: Accidental poisoning with anticoagulant rodenticides is not uncommon in dogs, but few reports of the elimination kinetics and half-lives in this species have been published. Our objectives were to develop and validate a new method for the quantification of anticoagulant rodenticides in canine blood and faeces using reversed phase ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) and apply the method on a case of anticoagulant rodenticide intoxication. RESULTS: Sample preparation was liquid-liquid extraction. Six anticoagulant rodenticides were separated using a UPLC(r) BEH C18 column with a mobile phase consisting of 5 mM ammonium formate buffer pH 10.2 and methanol. MS/MS detection was performed with positive electrospray ionization and two multiple reaction monitoring transitions. The limits of quantification were set at the levels of the lowest calibrator (1.5-2.7 ng/mL or ng/g). The method was successfully applied to a case from a dog accidentally poisoned with anticoagulant rodenticide. Coumatetralyl and brodifacoum concentrations were determined from serial blood and faecal samples. A terminal half-life of at least 81 days for coumatetralyl in blood was estimated, which is longer than previous reported in other species. A slow elimination of brodifacoum from the faeces was found, with traces still detectable in the faeces at day 513. CONCLUSIONS: This study offers a new method of detection and quantification of six frequently used anticoagulant rodenticides in canine faeces. Such drugs might cause serious health effects and it is important to be able to detect these drugs, to initiate proper treatment. The very long elimination half-lives detected in our study is important to be aware of in assessment of anticoagulant rodenticide burden to the environment. PMID- 29343297 TI - Pulmonary valve replacement after right ventricular outflow tract reconstruction with homograft vs Contegra(r): a case control comparison of mortality and morbidity. AB - BACKGROUND: Repair of congenital heart defects involving the right ventricular outflow tract may require the implantation of a right ventricle to pulmonary artery conduit. This conduit is likely to be replaced during childhood. This study compares the operative outcomes of the replacement procedure of Contegra(r) and homografts in pulmonary position. METHODS: From 1999 to 2016, 82 children underwent 87 right ventricle to pulmonary artery conduit replacements (60 Contegra(r) and 27 homografts). Demographics, operative and clinical data were obtained through a retrospective review of the medical records. The two groups were matched for comparison using propensity score matching. All the procedures were performed by the same team of surgeons. RESULTS: No statistically significant difference was observed between the two groups when considering the operative data for anesthesia, surgery, cardiopulmonary bypass and aortic clamping durations. A peroperative complication rate of 13.47% and 15.36% in Contegra(r) and homograft replacement groups respectively (p value = 0.758) was observed. There was no difference regarding the blood loss and fluid input. No statistically significant difference was observed between the two groups for the post-operative morbidity. We considered the Pediatric Risk of Mortality (PRISM) score, the day of extubation, the day of withdrawal of inotropic drugs, the length of the intensive care unit stay and the length of hospital stay. The overall mortality is 2.3% but there is no statistically significant difference between the two groups. CONCLUSION: Right ventricle to pulmonary artery conduit replacement procedure can be achieved with a low surgical morbidity or mortality, not influenced by the type of conduit that is replaced. Therefore, the choice between homograft or Contegra(r) for right ventricle to pulmonary artery reconstruction should not be influenced by the future surgical risk during the replacement procedure. TRIAL REGISTRATION: NCT03048071 . Registered 9 February 2017 (retrospectively registered). PMID- 29343298 TI - Circular RNAs: biogenesis, expression and their potential roles in reproduction. AB - Unlike other non-coding RNAs (ncRNAs), circular RNA (circRNA) is generally presented as a covalently linked circle lacking both a 5' cap and a 3' tail. circRNAs were thought to be spliced intermediates, byproducts, or products of abnormal RNA splicing events. However, the high-throughput sequencing technology coupled with bioinformatics has recently uncovered thousands of endogenous circRNAs in cells of many different species. These circRNAs show various features, such as abundant expression, evolutionary conservation, cell- or tissue specific expression, and a higher resistance to degradation caused by exonuclease or ribonuclease (RNase), suggesting their potentially biological significance. However, the function of these circRNAs, their mechanism of action, and the regulation of their biogenesis and degradation remains largely unclear. The current research and findings of circRNA in the context of reproduction will be reviewed. Additionally, the perspectives of circRNAs in the field will be discussed. PMID- 29343299 TI - Atypical phenotypic aspects of autoimmune thyroid disorders in young patients with Turner syndrome. AB - : Aim of this commentary is to analyze the current views about the phenotypic features of Hashimoto's thyroiditis (HT) and Graves' disease (GD) in Turner syndrome (TS) girls, in terms of epidemiology, clinical and biochemical presentation, long-term course and metamorphic autoimmunity evolution. In TS GD course is not atypical, whereas HT course is characterized by both a mild presenting picture and a severe long-term evolution of thyroid function tests. Furthermore, TS girls seem to have an increased risk of switching over time from HT to GD. On the light of these findings, it may be concluded that TS girls with HT need a careful monitoring of thyroid status over time. CONCLUSIONS: 1) In children the association with TS is able to condition a peculiar phenotypic expression of HT in terms of epidemiology, presentation course and long-term metamorphic autoimmunity; 2) by contrast, children with TS do not exhibit an atypical clinical and biochemical course of GD, but only a significantly higher prevalence of this disease. PMID- 29343300 TI - Association between sickle cell and beta-thalassemia genes and hemoglobin concentration and anemia in children and non-pregnant women in Sierra Leone: ancillary analysis of data from Sierra Leone's 2013 National Micronutrient Survey. AB - OBJECTIVE: By measuring the associations between the presence of sickle cell and beta-thalassemia genes, we assessed the extent to which these hemoglobinopathies contribute to the high prevalence of anemia observed in preschool-aged children and women of reproductive age in Sierra Leone. RESULTS: The prevalence of anemia was statistically significantly higher in children with homozygous sickle cell genes (HbSS) than in children with normal hemoglobin genes (HbAA or HbAC), but there was no difference in anemia prevalence in those with heterozygous sickle cell trait (HbAS or HbSC) compared with those with normal hemoglobin genes. In women, there was no difference in anemia prevalence by sickle cell status. In both children and women, there was no difference in the anemia prevalence for individuals with or without the beta-thalassemia gene. For both sickle cell and beta-thalassemia, there was no significant difference in hemoglobin concentrations by sickle cell or beta-thalassemia status. Anemia prevalence was higher in children and women with homozygous sickle cell (HbSS). However, as the prevalence of HbSS children (5.4%) and women (1.6%) was quite small, it is unlikely that these hemoglobinopathies substantially contributed to the high anemia prevalence found in the 2013 national micronutrient survey. PMID- 29343301 TI - Circulating PCSK9 levels and 2-hPG are positively correlated in metabolic diseases in a Chinese Han population. AB - BACKGROUND: Proprotein convertase subtilisin/kexin type 9 (PCSK9), which plays a crucial role in lipoprotein metabolism, has been also regarded as an important marker for atherosclerosis. Available evidence indicated that 2-h postchallenge plasma glucose (2-hPG) could be another biomarker for atherosclerosis. However, currently the association between circulating PCSK9 and 2-hPG remains unclear. Here, we explored this potential link in a Chinese Han population. METHODS: Totally, 600 Chinese Han subjects from Nanjing district, China, were enrolled for the 75-g oral glucose tolerance test (OGTT), and they included normal glucose tolerance (NGT, n = 200), impaired glucose regulation (IGR, n = 200), and type 2 diabetes (T2DM, n = 200). Anthropometric and biochemical determinations such as serum lipid measurements were made. A sandwich ELISA assay was performed to measure serum PCSK9 levels in all subjects. RESULTS: Serum PCSK9 concentrations were higher in IGR group (77.63 +/- 28.14 ng/ml) and T2DM group (90.62 +/- 39.96 ng/ml) than in NGT group (65.33 +/- 32.68 ng/ml), and it was significantly higher in T2DM group than in IGR group (p < 0.01). Serum PCSK9 levels positively correlated with 2-hPG and LDL-C in all subgroups, but presented a positive correlation with fasting blood glucose (FBG) only in T2DM group. Using multiple regression model analysis, we also found that PCSK9 levels closely correlated with 2-hPG in all tested groups. According to multinomial logistic regression analysis, PCSK9 levels positively correlated with T2DM (OR = 1.017[1.010-1.025], p < 0.001) even after adjustment for lipid levels. Moreover, in subjects with normal FBG level, 2-hPG gradually and significantly increased across PCSK9 tertiles (6.68 +/- 2.01, 7.48 +/- 2.10 and 8.27 +/- 2.41 mmol/L, respectively, p < 0.01); however, in subjects with normal 2-hPG levels, no such difference was observed. CONCLUSIONS: PCSK9 levels increase as glucose metabolism deteriorated. Serum PCSK9 levels positively correlated with 2-hPG in patients with metabolic diseases. PMID- 29343302 TI - Does previous abdominal surgery adversely affect perioperative and oncologic outcomes of laparoscopic radical cystectomy? AB - BACKGROUND: Laparoscopic radical cystectomy (LRC) has been shown to have less estimated blood loss (EBL), transfusion rate, narcotic analgesic requirement, earlier return of bowel function, and shorter hospital stay. The aim of this study was to investigate the feasibility, peri-operative and oncologic outcomes of laparoscopic radical cystectomy (LRC) in patients with previous abdominal surgery (PAS). METHODS: We retrospectively reviewed 243 patients undergoing open radical cystectomy (ORC) or LRC with bilateral pelvic lymph node dissection and urinary diversion or cutaneous ureterostomy at a single center from January 2010 to December 2015. Demographic parameters, intra-operative variables, peri operative records, pathologic outcomes, and complication rate were reviewed to assess the impact of PAS on peri-operative and oncologic outcomes. RESULTS: Patients in both ORC and LRC subgroups were homogeneous in terms of demography characteristics including age, gender, BMI, ASA score, and comorbidity. Estimated blood loss (EBL) was higher in patients with PAS undergoing ORC compared to those with no PAS (P = 0.008). However, there was no significant difference of EBL among patients undergoing LRC with or without PAS (P = 0.896). There was no statistical difference in peri-operative parameters and pathological outcomes. Patients with PAS undergoing ORC and ileal conduit had a higher vascular injury rate (P = 0.017). Comparing patients with PAS performed by LRC and ORC, the number of patients with the vascular injury was higher in ORC groups regardless of the type of diversion (ileal conduit, P = 0.001, cutaneous ureterostomy, P = 0.025). There is no significant difference in other complications. CONCLUSION: The presence of adhesions from PAS is not a contraindication to LRC. Patients with PAS may benefit from LRC with lower estimated blood loss, fewer transfusion rates, and vascular injuries. Furthermore, the overall oncologic outcomes and complication rate are similar between LRC and ORC patients with PAS. PMID- 29343303 TI - Comparison of modified wet suction technique and dry suction technique in endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) for solid lesions: study protocol for a randomized controlled trial. AB - BACKGROUND: Several suction techniques have been developed recently to enhance tissue acquisition when sampling solid lesions using endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). The aim of this study is to determine whether a new modified wet suction technique (MWST) compared with the conventional dry suction technique (DRST) shall present better outcomes with respect to diagnostic yield and specimen quality of solid lesions in the intra-abdomen and mediastinum. METHODS/DESIGN: This is a single-blind, randomized, controlled, superiority trial conducted at four large tertiary care centers in China. Two hundred and ninety six patients with solid lesions referred for EUS-FNA will be randomly assigned to group A, using DRST for the first pass, or group B, using MWST for the first pass in a ratio of 1:1. Following a 2 * 2 cross-over design, the pass sequence for group A is DRST, MWST, DRST, MWST. For group B, the pass sequence is MWST, DRST, MWST, DRST. All procedures will be performed by experienced echoendoscopists, and the patients and assessors (cytologists and pathologists) will be blinded during the entire study. The primary outcome measure is the diagnosis yield. Secondary outcome measures are specimen quality, including assessment of quantity of cell, tissue integrity, and blood contamination. DISCUSSION: To our knowledge, this is the first large-scale randomized controlled trial to compare MWST with DRST when sampling solid lesions in the intra-abdomen and mediastinum. The results may contribute to future multicenter clinical trials in standardizing suction techniques during EUS-FNA. TRIAL REGISTRATION: Clinical Trials.gov, NCT02789371 . Retrospectively registered on 6 June 2016. PMID- 29343304 TI - Increasing incidence of Dirofilaria immitis in dogs in USA with focus on the southeast region 2013-2016. AB - BACKGROUND: A recent American Heartworm Society (AHS) survey on the incidence of adult heartworm infections in dogs in the United States of America showed a 21.7% increase in the average cases per veterinary clinic from 2013 to 2016. The analysis reported here was performed to see if heartworm testing results available via the Companion Animal Parasite Council (CAPC) aligned with the AHS survey and whether changes in heartworm preventive dispensing accounts for the increased incidence. The resistance of Dirofilaria immitis to macrocyclic lactones (MLs) has been previously reported. METHODS: An analysis of 7-9 million heartworm antigen tests reported annually to the Companion Animal Parasite Council (CAPC) from 2013 to 2016 was conducted and compared to the 2016 AHS survey. A state-by-state analysis across the southeastern USA was also performed. National heartworm preventive dispensing data were obtained from Vetstreet LLC and analyzed. All oral, topical and injectable heartworm preventives were included in this analysis, with injectable moxidectin counting as six doses. RESULTS: Positive antigen tests increased by 15.28% from 2013 to 2016, similar to the 21.7% increase reported by the AHS survey. Incidence in the southeastern USA increased by17.9% while the rest of USA incidence increased by 11.4%. State-by state analysis across the southeastern USA revealed an increased positive test frequency greater than 10% in 9 of 12 states evaluated. During this time, the overall proportion of dogs receiving heartworm prophylaxis remained relatively unchanged. Approximately 2/3 of the dogs in the USA received no heartworm prevention each year. CONCLUSION: These CAPC data show the rate of positive heartworm tests increasing significantly (P < 0.0001) in the USA from 2013 to 2016, with a higher rate of increase in the southeastern USA than nationally. Only 1/3 of dogs in the USA were dispensed one or more doses of heartworm prevention annually by veterinarians, averaging 8.6 monthly doses/year. Veterinarians and pet owners should work together to follow CAPC and AHS guidelines to protect dogs from infection with D. immitis. Lack of preventive use and the emergence of heartworm resistance to MLs could both be impacting the increased rate of positive heartworm tests in dogs. PMID- 29343305 TI - Relationship between Eustachian tube dysfunction and otitis media with effusion in radiotherapy patients. AB - OBJECTIVE: This study evaluated the relationship between radiation and Eustachian tube dysfunction, and examined the radiation dose required to induce otitis media with effusion. METHODS: The function of 36 Eustachian tubes in 18 patients with head and neck cancer were examined sonotubometrically before, during, and 1, 2 and 3 months after, intensity-modulated radiotherapy. Patients with an increase of 5 dB or less in sound pressure level (dB) during swallowing were categorised as being in the dysfunction group. Additionally, radiation dose distributions were assessed in all Eustachian tubes using three dose-volume histogram parameters. RESULTS: Twenty-two of 25 normally functioning Eustachian tubes before radiotherapy (88.0 per cent) shifted to the dysfunction group after therapy. All ears that developed otitis media with effusion belonged to the dysfunction group. The radiation dose threshold evaluation revealed that ears with otitis media with effusion received significantly higher doses to the Eustachian tubes. CONCLUSION: The results indicate a relationship between radiation dose and Eustachian tube dysfunction and otitis media with effusion. PMID- 29343307 TI - INFORMED CHOICE AND FEMALE STERILIZATION IN SOUTH ASIA AND LATIN AMERICA. AB - Globally, female sterilization is one of the most popular contraceptive methods despite concerns about quality of care for women who report being sterilized. In this study, informed choice among sterilized women was quantified using Demographic and Health Survey (DHS) data from 2000 to 2012 for countries in South Asia and Latin America. Three responses measured informed choice and knowledge about whether women were informed by a health worker or provider: that sterilization is permanent, the potential side-effects of sterilization and other methods of contraception. An ascending composite Method Information Index with scores ranging from 0 (women received no information) to 3 (women received information across all three indicators) was used. Using ordinal logistic regression analysis, the results indicated that women younger than 25 and older than 35 at the time of sterilization, and those at high parities, had lower odds of a high score on the index, while the opposite was true for women sterilized in the private sector in Latin America. Educated women in India had higher odds of a high score on the index, while the same was true for educated and wealthy women in Colombia. These findings indicate that not enough health care providers spend time informing women in South Asia and Latin America about different aspects of sterilization, and that there are specific groups of women that are more affected. There is an urgent need to improve quality of care within health systems providing sterilization for this very important and effective type of contraception. PMID- 29343306 TI - Nasal changes associated with exercise in athletes: systematic review. AB - BACKGROUND: The prevalence of rhinitis in athletes has frequently been studied in combination with asthma, but the impact of exercise on the paracrine and secretory functions of nasal mucosa is less well established. This systematic review aimed to examine the effect of exercise on nasal mucosa in elite athletes. METHOD: A systematic search of Medline, Embase and the non-Medline subset of PubMed, from inception to 8th March 2016, was performed to identify studies on rhinitis in athletes. RESULTS: Of the 373 identified unique articles, a total of 8 studies satisfied the criteria for this review. CONCLUSION: There is no evidence in the existing literature that indicates a reduction in nasal airway induced by exercise. Olfaction and mucociliary transport time are affected in swimmers, which can likely be attributed to chlorine irritation and which resolves with training cessation. Short-term strenuous exercise may trigger changes in cytology and prolonged mucociliary transport time, which also resolve quickly with rest. PMID- 29343308 TI - Invited review: Genomic selection for small ruminants in developed countries: how applicable for the rest of the world? AB - Improved management and use of estimated breeding values in breeding programmes, have resulted in rapid genetic progress for small ruminants (SR) in Europe and other developed countries. The development of single nucleotide polymorphisms chips opened opportunities for genomic selection (GS) in SR in these countries. Initially focused on production traits (growth and milk), GS has been extended to functional traits (reproductive performance, disease resistance and meat quality). The GS systems have been characterized by smaller reference populations compared with those of dairy cattle and consisting mostly of cross- or multi breed populations. Molecular information has resulted in gains in accuracy of between 0.05 and 0.27 and proved useful in parentage verification and the identification of QTLs for economically important traits. Except for a few established breeds with some degree of infrastructure, the basic building blocks to support conventional breeding programmes in small holder systems are lacking in most developing countries. In these systems, molecular data could offer quick wins in undertaking parentage verification and genetic evaluations using G matrix, and determination of breed composition. The development of next generation molecular tools has prompted investigations on genome-wide signatures of selection for mainly adaptive and reproduction traits in SR in developing countries. Here, the relevance of the developments and application of GS and other molecular tools in developed countries to developing countries context is examined. Worth noting is that in the latter, the application of GS in SR will not be a 'one-size fits all' scenario. For breeds with some degree of conventional genetic improvement, classical GS may be feasible. In small holder systems, where production is key, community-based breeding programmes can provide the framework to implement GS. However, in fragile growth systems, for example those found in marginal environments, innovative GS to maximize adaptive diversity will be required. A cost-benefit analysis should accompany any strategy of implementing GS in these systems. PMID- 29343309 TI - Could seasonal allergy be a risk factor for acute rhinosinusitis in children? AB - OBJECTIVE: To evaluate the incidence of acute rhinosinusitis in children with grass pollen induced rhinitis during the period of grass pollinosis. METHODS: Children with nasal symptoms from grass pollen induced rhinitis but without rhinosinusitis symptoms were selected. Their parents were asked to complete a diary during pollen exposure to report nasal symptoms and drugs used daily. When rhinosinusitis was suspected, the confirmatory diagnosis of acute rhinosinusitis was made by fibro-endoscopy. Children without inhalant allergy served as controls. RESULTS: Seventeen out of 242 children (7.0 per cent) had a diagnosis of acute rhinosinusitis, confirmed by fibro-endoscopy, during grass pollination, compared to 3 out of 65 (4.6 per cent) in the control group (p = 0.49). Among allergic children, those with acute rhinosinusitis had symptoms for a greater number of days and/or a higher symptoms score than children without acute rhinosinusitis. CONCLUSION: Children with grass pollen induced rhinitis during exposure to pollen have an incidence of endoscopically confirmed acute rhinosinusitis comparable to non-allergic children. This suggests that grass pollen induced rhinitis is a negligible risk factor for acute rhinosinusitis. PMID- 29343310 TI - Effect of dietary fish oil on selected inflammatory markers in pigs. AB - The present study tested a hypothesis that dietary fish oil (eicosapentaenoic acid+docosahexaenoic acid) in a commonly achievable dose ameliorates a systemic inflammation in pigs. Two groups of pigs of 16 animals each were fed a diet with either 2.5% of fish oil (F) or a control diet with 2.5% of palm oil (P). After 70 days of fattening, eight F and eight P pigs were challenged (F+; P+) i.v. by lipopolysaccharide. After 3 h, all pigs were sacrificed and blood, liver and visceral adipose tissue (VAT) samples were taken. No significant effect (P>0.05) of dietary oil on the feed intake and daily weight gain was found out. Less neutrophils (16.8% v. 28.8%; P0.05) between F+ and P+ pigs in the peroxisome proliferator-activated receptor gamma, GPR120, Adipor1 and Adipor2 (adiponectin receptor) gene expression, respectively, was established; plasma adiponectin was the same (21.1 ng/ml) in F+ and P+ pigs. In comparison with the P+ pigs, increased expression of the lipopolysaccharide-binding protein (LBP) gene and intercellular adhesion molecule 1 (ICAM1) gene was found out in the liver of the F+ pigs; expression of the tumor necrosis factor alpha (TNFalpha) gene was higher in the liver but lower in the VAT of the F+ pigs (P<0.05). The F+ pigs had higher (P<0.05) plasma concentration of both anti-inflammatory cytokine interleukin-4 (0.46 v. 0.04 ng/ml) and pro-inflammatory TNF-alpha (13.41 v. 7.72 ng/ml). It was concluded that dietary fish oil at the tested amount had a negligible effect on expression of the evaluated receptor genes and plasma adiponectin, and had an ambiguous effect on expression of cytokine genes and plasma cytokine levels. PMID- 29343311 TI - Decompensated labyrinthine weakness presenting as de novo peripheral vertigo: a discrete clinical entity? AB - OBJECTIVE: A distinct subgroup of patients, presenting with apparently spontaneous onset of vertigo, is described. RESULTS: Although vestibular evaluation revealed caloric weakness, the proximate cause of vertigo was not labyrinthine dysfunction, but rather the loss of vestibular compensation for an older and previously compensated labyrinthine injury. CONCLUSION: Instead of addressing the vestibular weakness, effective management needs to focus on the condition that has caused the loss of compensation. PMID- 29343312 TI - Fecal Microbiota Transplant for Multidrug-Resistant Organism Decolonization Administered During Septic Shock. PMID- 29343313 TI - Eucalyptus leaves powder, antibiotic and probiotic addition to broiler diets: effect on growth performance, immune response, blood components and carcass traits. AB - The study was conducted to investigate the effects of different levels of eucalyptus powder (EP), virginiamycin and probiotic on performance, immunity, blood components and carcass traits of broiler chickens. A total of 250, 1-day old male broiler chickens (Ross 308) were randomly allocated to five treatments with five replicates and 10 chicks each, as a completely randomized design. The dietary treatments consisted of: basal diet (BD), BD+0.25% EP, BD+0.5% EP, BD+0.01% of diet probiotic (Protexin), BD+0.02% of diet antibiotic (virginiamycin). Dietary supplementation did not affect feed intake, BW gain (BWG) and feed conversion ratio (FCR) during starter and grower phases, but BWG and FCR were affected during the finisher and whole periods (P<0.05).The highest BWG and lowest FCR were obtained in birds fed with virginiamycin and 0.5% EP. Dietary supplementation significantly increased the relative weight of carcass and breast (P<0.05). Treatments had no effect on relative weights of internal organs and small intestine except for bursa that increased by treatments. Relative length of jejunum also increased by treatments (P<0.05). Antibody production against sheep red blood cells did not changed in primary titer (day 35), but it significantly increased in secondary titer (day 42) by 0.5% EP. White blood cell counts were increased and cholesterol decreased by dietary supplementation (P<0.05). In conclusion, the results of this study showed that 0.5% EP served as a useful replacement for antibiotic and would improve performance and immune response of broiler chickens. PMID- 29343314 TI - Cell-free DNA: the role in pathophysiology and as a biomarker in kidney diseases. AB - Cell-free DNA (cfDNA) is present in various body fluids and originates mostly from blood cells. In specific conditions, circulating cfDNA might be derived from tumours, donor organs after transplantation or from the foetus during pregnancy. The analysis of cfDNA is mainly used for genetic analyses of the source tissue tumour, foetus or for the early detection of graft rejection. It might serve also as a nonspecific biomarker of tissue damage in critical care medicine. In kidney diseases, cfDNA increases during haemodialysis and indicates cell damage. In patients with renal cell carcinoma, cfDNA in plasma and its integrity is studied for monitoring of tumour growth, the effects of chemotherapy and for prognosis. Urinary cfDNA is highly fragmented, but the technical hurdles can now be overcome and urinary cfDNA is being evaluated as a potential biomarker of renal injury and urinary tract tumours. Beyond its diagnostic application, cfDNA might also be involved in the pathogenesis of diseases affecting the kidneys as shown for systemic lupus, sepsis and some pregnancy-related pathologies. Recent data suggest that increased cfDNA is associated with acute kidney injury. In this review, we discuss the biological characteristics, sources of cfDNA, its potential use as a biomarker as well as its role in the pathogenesis of renal and urinary diseases. PMID- 29343315 TI - Subclinical inflammation affects iron and vitamin A but not zinc status assessment in Senegalese children and Cambodian children and women. AB - OBJECTIVE: To assess the impact of the acute-phase response (APR) during inflammation on Fe, Zn and vitamin A biomarkers to allow accurate evaluation of micronutrient status in populations. DESIGN: Ferritin (FER), soluble transferrin receptor (TfR), retinol-binding protein (RBP), Zn, alpha1-acid glycoprotein and C reactive protein concentrations were measured. Correction factors (CF) for each biomarker were calculated as the ratio for groups at different stages of inflammation v. the reference group without inflammation.Setting/SubjectsSenegalese (n 594) and Cambodian schoolchildren (n 2471); Cambodian women of reproductive age (n 2117). RESULTS: TfR was higher during the incubation phase (CF=1.17) and lower during early and late convalescence (CF=0.87 and 0.78). FER was higher during all phases (CF=0.83, 0.48 and 0.65, respectively). RBP was higher during incubation (CF=0.88) and lower during early convalescence (CF=1.21). No effect of inflammation on Zn status was found. CONCLUSIONS: Inflammation led to overestimation of Fe status and underestimation of vitamin A status. The response of the biomarker for vitamin A status to inflammation depended on the vitamin A status of the populations. Surprisingly, the assessment of Zn status was hardly affected by inflammation. Different phases of the APR had opposite effects on the assessment of Fe status using TfR. More research is needed to define the correct methods to adjust for inflammation in nutritional studies. PMID- 29343316 TI - Black soldier fly larva fat inclusion in finisher broiler chicken diet as an alternative fat source. AB - The objective of the present study was to evaluate the effects of partial or total replacement of finisher diet soybean oil with black soldier fly (Hermethia illucens L.; HI) larva fat on the growth performance, carcass traits, blood parameters, intestinal morphology and histological features of broiler chickens. At 21 days of age, a total of 120 male broiler chickens (Ross 308) were randomly allocated to three experimental groups (five replicates and eight birds/pen). To a basal control diet (C; 68.7 g/kg as fed of soybean oil), either 50% or 100% of the soybean oil was replaced with HI larva fat (HI50 and HI100 group, respectively). Growth performance was evaluated throughout the trial. At day 48, 15 birds (three birds/pen) per group were slaughtered at a commercial abattoir. Carcass yield and proportions of carcass elements were recorded. Blood samples were taken from each slaughtered chicken for haematochemical index determination. Morphometric analyses were performed on the duodenum, jejunum and ileum. Samples of liver, spleen, thymus, bursa of fabricius, kidney and heart were submitted to histological investigations. Growth performance, carcass traits, haematochemical parameters and gut morphometric indexes were not influenced by the dietary inclusion of HI larva fat. Histopathological alterations developed in the spleen, thymus, bursa of fabricius and liver and were identified in all of the experimental groups, but HI larva fat inclusion did not significantly affect (P>0.05) the severity of the histopathological findings. The present study suggests that 50% or 100% replacement of soybean oil with HI larva fat in broiler chickens diets has no adverse effects on growth performance or blood parameters and had no beneficial effect on gut health. PMID- 29343317 TI - Disaster-Relief Fraud: A Dark Side of Disasters. PMID- 29343407 TI - A Flat Pink Plaque On The Right Anterior Forearm. PMID- 29343408 TI - Response to 'Perilesional edema in brain cancer: Independent prognosticator or epiphenomenon of biomolecular signature?' PMID- 29343409 TI - Monitoring early changes in rectal tumor morphology and volume during 5 weeks of preoperative chemoradiotherapy - An evaluation with sequential MRIs. AB - PURPOSE: To assess early changes in rectal tumor volume and morphology on sequential MRIs performed during 5 weeks of chemoradiotherapy. MATERIALS AND METHODS: Thirteen patients underwent weekly T2W-MRI during 5 weeks of preoperative radiotherapy (total 50 Gy), starting after the first week of radiation. Two radiologists visually evaluated tumor volume and morphology and one reader manually segmented tumors for each time point to quantitatively calculate tumor volumes. Evolution in tumor volume/morphology was assessed over time and compared between good responders (tumor regression grade (TRG) 1-2) and poor responders (TRG 3-5). RESULTS: Tumor volumes decreased significantly during radiation. Early signs of response were also visually apparent: in the majority of good responders an early fibrotic transformation (week 2-3) as well as a visually estimated early volume reduction of >1/3 (week 1-2), was observed while these early changes only occurred in a minority of poor responders. CONCLUSION: Results of this exploratory pilot study suggest that changes in rectal tumor morphology (fibrosis) and volume can already be observed early during radiation, both when measured quantitatively and when assessed visually. These changes appear to be indicative of the final treatment outcome. PMID- 29343410 TI - Random uncertainty of photometric determination of hemolysis index on the Abbott Architect c16000 platform. AB - BACKGROUND: Automatic photometric determination of the hemolysis index (HI) on serum and plasma samples is central to detect potential interferences of in vitro hemolysis on laboratory tests. When HI is above an established cut-off for interference, results may suffer from a significant bias and undermine clinical reliability of the test. Despite its undeniable importance for patient safety, the analytical performance of HI estimation is not usually checked in laboratories. Here we evaluated for the first time the random source of measurement uncertainty of HI determination on the two Abbott Architect c16000 platforms in use in our laboratory. METHODS: From January 2016 to September 2017, we collected data from daily photometric determination of HI on a fresh-frozen serum pool with a predetermined HI value of ~100 (corresponding to ~1g/L of free hemoglobin). Monthly and cumulative CVs were calculated. RESULTS: During 21months, 442 and 451 measurements were performed on the two platforms, respectively. Monthly CVs ranged from 0.7% to 2.7% on c16000-1 and from 0.8% to 2.5% on c16000-2, with a between-platform cumulative CV of 1.82% (corresponding to an expanded uncertainty of 3.64%). Mean HI values on the two platforms were just slightly biased (101.3 vs. 103.1, 1.76%), but, due to the high precision of measurements, this difference assumed statistical significance (p<0.0001). CONCLUSIONS: Even though no quality specifications are available to date, our study shows that the HI measurement on Architect c16000 platform has nice reproducibility that could be considered in establishing the state of the art of the measurement. PMID- 29343411 TI - Consequence of enhanced LC3-trafficking for a live, attenuated M. tuberculosis vaccine. AB - Development of a new vaccine against tuberculosis is urgently needed. Recent work has demonstrated that two related LC3-associated trafficking pathways, autophagy and LC3-associated phagocytosis (LAP), enhance antigen presentation and might play a role in vaccine efficacy. Mycobacterium tuberculosis inhibits both LC3 trafficking pathways. Moreover, the vaccine strain, BCG, induces even less LC3 trafficking than M. tuberculosis, which may help explain its limited efficacy. To determine whether enhanced LC3-trafficking can improve efficacy of a live, attenuated M. tuberculosis vaccine, we took advantage of our recent finding that the bacterial virulence factor CpsA inhibits LAP. When we deleted cpsA in the mc26206 vaccine strain, it dramatically increased LC3-trafficking. We compared the protective efficacy of the strain lacking cpsA to the parent strain and to BCG in mice challenged with M. tuberculosis. We found that the strain lacking cpsA generated modestly enhanced protection in the spleen, but overall did not outperform BCG. PMID- 29343413 TI - Exposure to and colonisation by antibiotic-resistant E. coli in UK coastal water users: Environmental surveillance, exposure assessment, and epidemiological study (Beach Bum Survey). AB - BACKGROUND: Antibiotic-resistant bacteria (ARB) present a global public health problem. With numbers of community-acquired resistant infections increasing, understanding the mechanisms by which people are exposed to and colonised by ARB can help inform effective strategies to prevent their spread. The role natural environments play in this is poorly understood. This is the first study to combine surveillance of ARB in bathing waters, human exposure estimates and association between exposure and colonisation by ARB in water users. METHODS: 97 bathing water samples from England and Wales were analysed for the proportion of E. coli harbouring blaCTX-M. These data were used to estimate the likelihood of water users ingesting blaCTX-M-bearing E. coli. Having identified surfers as being at risk of exposure to ARB, a cross-sectional study was conducted. Regular surfers and non-surfers were recruited to assess whether there is an association between surfing and gut colonisation by blaCTX-M-bearing E. coli. RESULTS: 11 of 97 bathing waters sampled were found to contain blaCTX-M-bearing E. coli. While the percentage of blaCTX-M-bearing E. coli in bathing waters was low (0.07%), water users are at risk of ingesting these ARB. It is estimated that over 2.5 million water sports sessions occurred in 2015 resulting in the ingestion of at least one blaCTX-M-bearing E. coli. In the epidemiological survey, 9/143 (6.3%) surfers were colonised by blaCTX-M-bearing E. coli, as compared to 2/130 (1.5%) of non-surfers (risk ratio=4.09, 95% CI 1.02 to 16.4, p=0.046). CONCLUSIONS: Surfers are at risk of exposure to and colonisation by clinically important antibiotic-resistant E. coli in coastal waters. Further research must be done on the role natural environments play in the transmission of ARB. PMID- 29343414 TI - Oxaliplatin and neuropathy: A role for sodium channels. PMID- 29343412 TI - Implementing genome-driven personalized cardiology in clinical practice. AB - Genomics designates the coordinated investigation of a large number of genes in the context of a biological process or disease. It may be long before we attain comprehensive understanding of the genomics of common complex cardiovascular diseases (CVDs) such as inherited cardiomyopathies, valvular diseases, primary arrhythmogenic conditions, congenital heart syndromes, hypercholesterolemia and atherosclerotic heart disease, hypertensive syndromes, and heart failure with preserved/reduced ejection fraction. Nonetheless, as genomics is evolving rapidly, it is constructive to survey now pertinent concepts and breakthroughs. Today, clinical multimodal electronic medical/health records (EMRs/EHRs) incorporating genomic information establish a continuously-learning, vast knowledge-network with seamless cycling between clinical application and research. It can inform insights into specific pathogenetic pathways, guide biomarker-assisted precise diagnoses and individualized treatments, and stratify prognoses. Complex CVDs blend multiple interacting genomic variants, epigenetics, and environmental risk-factors, engendering progressions of multifaceted disease manifestations, including clinical symptoms and signs. There is no straight-line linkage between genetic cause(s) or causal gene-variant(s) and disease phenotype(s). Because of interactions involving modifier-gene influences, (micro) environmental, and epigenetic effects, the same variant may actually produce dissimilar abnormalities in different individuals. Implementing genome-driven personalized cardiology in clinical practice reveals that the study of CVDs at the level of molecules and cells can yield crucial clinical benefits. Complementing evidence-based medicine guidelines from large ("one-size fits all") randomized controlled trials, genomics-based personalized or precision cardiology is a most-creditable paradigm: It provides customizable approaches to prevent, diagnose, and manage CVDs with treatments directly/precisely aimed at causal defects identified by high-throughput genomic technologies. They encompass stem cell and gene therapies exploiting CRISPR-Cas9-gene-editing, and metabolomic pharmacogenomic therapeutic modalities, precisely fine-tuned for the individual patient. Following the Human Genome Project, many expected genomics technology to provide imminent solutions to intractable medical problems, including CVDs. This eagerness has reaped some disappointment that advances have not yet materialized to the degree anticipated. Undoubtedly, personalized genetic/genomics testing is an emergent technology that should not be applied without supplementary phenotypic/clinical information: Genotype?Phenotype. However, forthcoming advances in genomics will naturally build on prior attainments and, combined with insights into relevant epigenetics and environmental factors, can plausibly eradicate intractable CVDs, improving human health and well-being. PMID- 29343415 TI - Paradigms for restoration of somatosensory feedback via stimulation of the peripheral nervous system. AB - The somatosensory system contributes substantially to the integration of multiple sensor modalities into perception. Tactile sensations, proprioception and even temperature perception are integrated to perceive embodiment of our limbs. Damage of somatosensory networks can severely affect the execution of daily life activities. Peripheral injuries are optimally corrected via direct interfacing of the peripheral nerves. Recent advances in implantable devices, stimulation paradigms, and biomimetic sensors enabled the restoration of natural sensations after amputation of the limb. The refinement of stimulation patterns to deliver natural feedback that can be interpreted intuitively such to prescind from long learning sessions is crucial to function restoration. For this review, we collected state-of-the-art knowledge on the evolution of stimulation paradigms from single fiber stimulation to the eliciting of multisensory sensations. Data from the literature are structured into six sections: (a) physiology of the somatosensory system; (b) stimulation of single fibers; (c) restoral of multisensory percepts; (d) closure of the control loop in hand prostheses; (e) sensory restoration and the sense of embodiment, and (f) methodologies to assess stimulation outcomes. Full functional recovery demands further research on multisensory integration and brain plasticity, which will bring new paradigms for intuitive sensory feedback in the next generation of limb prostheses. PMID- 29343416 TI - Intrathecal tranexamic acid - an accident waiting to happen? PMID- 29343417 TI - Does the addition of active body warming to in-line intravenous fluid warming prevent maternal hypothermia during elective caesarean section? A randomised controlled trial. PMID- 29343418 TI - The combination of corticosteroid and tocolytic therapy in a preeclamptic patient is a risk factor for the development of acute pulmonary oedema. PMID- 29343419 TI - Successful use of non-invasive positive pressure ventilation in a patient with the severe form of X-linked myotubular myopathy. AB - The severity of X-linked myotubular myopathy (XLMTM) ranges from mild to severe, depending on the level of ventilatory support required. Patients with the severe form of XLMTM usually die within the first year of life due to respiratory failure. Most survivors need tracheostomies, and there has only been one report about the use of non-invasive positive pressure ventilation (NPPV) in patients with the severe form of XLMTM because of the severity of the associated respiratory failure. We successfully applied NPPV with high-span positive inspiratory pressure (PIP) in a patient with the severe form of XLMTM, who also had secondary pectus excavatum. About a year after the initiation of NPPV with high-span PIP, the patient's pectus excavatum had improved. As the patient's pectus excavatum improved, his respiratory disturbance was ameliorated, and the frequency of respiratory infections gradually decreased. NPPV might be the first choice respiratory management strategy for patients with XLMTM. PMID- 29343421 TI - Frequency of small-colony variants and antimicrobial susceptibility of methicillin-resistant Staphylococcus aureus in cystic fibrosis patients. AB - BACKGROUND: Small-colony variants (SCVs) are a distinct phenotype of Staphylococcus aureus, known for their role in chronic, difficult to treat infections, including cystic fibrosis (CF) lung disease. The goal of this study was to characterize SCV MRSA infection in an adult and pediatric CF population and to identify antibiotic susceptibility patterns unique to SCV MRSA. METHODS: We recovered methicillin-resistant S. aureus (MRSA) from respiratory culture samples from CF patients at the Johns Hopkins Hospital during a 6month study period. RESULTS: Of 1161 samples, 200 isolates (17%) were identified as MRSA, and 37 isolates from 28 patients were identified as SCV MRSA. A higher proportion of MRSA was found among SCV isolates (37/66, 56%) compared to normal colony variant (NCV) isolates (163/417, 39%), p=0.02. All SCV MRSA isolates from individual patients were susceptible to vancomycin and ceftaroline, but they demonstrated higher rates of antibiotic resistance to trimethoprim/sulfamethoxazole, moxifloxacin, and erythromycin, compared to NCV MRSA isolates. Additionally, individuals with SCV MRSA had lower lung function, higher rates of persistent MRSA infection, and higher rates of previous antibiotic use, compared to individuals with NCV MRSA. CONCLUSIONS: A significant proportion of MRSA isolates recovered from patients with CF have the SCV morphology. Compared to individuals with NCV MRSA, those with SCV MRSA have higher rates of persistent MRSA infection and lower lung function. SCV MRSA isolates were more resistant than NCV, but they are highly susceptible to vancomycin, linezolid and ceftaroline. PMID- 29343422 TI - Effect of foetal and infant growth and body composition on respiratory outcomes in preterm-born children. AB - Body composition and growth outcomes of preterm-born subjects have been studied by many researchers. In general, preterm-born children have lower height and weight especially in infancy. Despite showing potential for catch-up growth, they continue to lag behind their term counterparts in adolescence and adulthood. The various methods of studying body composition and the differing gestations and ages at which it is assessed may go some way to explaining the inconsistent results observed in different studies. In addition, there is a paucity of data on the effects of foetal and infant growth and of body composition on later respiratory outcomes. In largely term-born subjects, foetal growth and growth trajectories appear to have differential effects on later respiratory outcomes. Early weight gain in infancy appears to be associated with increased respiratory symptoms in childhood but catch-up growth in infancy appears to be associated with possible improved lung function status. PMID- 29343420 TI - AMPK Re-Activation Suppresses Hepatic Steatosis but its Downregulation Does Not Promote Fatty Liver Development. AB - Nonalcoholic fatty liver disease is a highly prevalent component of disorders associated with disrupted energy homeostasis. Although dysregulation of the energy sensor AMP-activated protein kinase (AMPK) is viewed as a pathogenic factor in the development of fatty liver its role has not been directly demonstrated. Unexpectedly, we show here that liver-specific AMPK KO mice display normal hepatic lipid homeostasis and are not prone to fatty liver development, indicating that the decreases in AMPK activity associated with hepatic steatosis may be a consequence, rather than a cause, of changes in hepatic metabolism. In contrast, we found that pharmacological re-activation of downregulated AMPK in fatty liver is sufficient to normalize hepatic lipid content. Mechanistically, AMPK activation reduces hepatic triglyceride content both by inhibiting lipid synthesis and by stimulating fatty acid oxidation in an LKB1-dependent manner, through a transcription-independent mechanism. Furthermore, the effect of the antidiabetic drug metformin on lipogenesis inhibition and fatty acid oxidation stimulation was enhanced by combination treatment with small-molecule AMPK activators in primary hepatocytes from mice and humans. Overall, these results demonstrate that AMPK downregulation is not a triggering factor in fatty liver development but in contrast, establish the therapeutic impact of pharmacological AMPK re-activation in the treatment of fatty liver disease. PMID- 29343423 TI - Request for HIV serology in primary care: A survey of medical and nursing professionals. AB - INTRODUCTION: In the Community of Madrid there is 42.7% late HIV diagnosis. Primary care is the gateway to the health system and the frequency of serological tests requested by these professionals is unknown. The objectives were to establish the frequency of requests for HIV serology by medical and nursing primary care professionals in the Community of Madrid and the factors associated with these requests. METHOD: An 'on-line' survey was conducted, asking professionals who participated in the evaluation study of strategies to promote early diagnosis of HIV in primary care in the Community of Madrid (ESTVIH) about the number of HIV-serology tests requested in the last 12 months. The association between HIV-serology requesting and the sociodemographic and clinical practice characteristics of the professionals was quantified using adjusted odds ratios (aOR) according to logistic regression. RESULTS: 264 surveys (59.5% physicians). Eighty-two point two percent of medical and 18.7% of nursing professionals reported requesting at least one HIV-serology in the last 12 months (median: 15 and 2 HIV-serology request, respectively). The doctors associated the request with: being male (aOR: 2.95; 95% CI: 0.82-10.56), being trained in pre-post HIV test counselling (aOR: 2.42; 95% CI: 0.84-6.93) and the nurses with: age (<50 years; aOR: 2.75; 95% CI: 0.97-7.75), and number of years working in primary care (>13 years; aOR: 3.02; 95% CI: 1.07-8.52). CONCLUSION: It is necessary to promote HIV testing and training in pre-post HIV test counselling for medical and nursing professionals in primary care centres. PMID- 29343425 TI - Iba57p participates in maturation of a [2Fe-2S]-cluster Rieske protein and in formation of supercomplexes III/IV of Saccharomyces cerevisiae electron transport chain. AB - The [Fe-S] late-acting subsystem comprised of Isa1p/Isa2p, Grx5p, and Iba57p proteins (Fe-S-IBG subsystem) is involved in [4Fe-4S]-cluster protein assembly. The effect of deleting IBA57 in Saccharomyces cerevisiae on mitochondrial respiratory complex integration and functionality associated with Rieske protein maturation was evaluated. The iba57Delta mutant showed decreased expression and maturation of the Rieske protein. The loss of Rieske protein caused by IBA57 deletion affected the structure of supercomplexes III2IV2 and III2IV1 and their integration into the mitochondria, causing dysfunction in the electron transport chain. These effects were correlated with decreased cytochrome functionality and content in the iba57Delta mutant. These findings suggest that Iba57p participates in maturation of the [2Fe-2S]-cluster into the Rieske protein and that Rieske protein plays important roles in the conformation and functionality of mitochondrial supercomplex III/IV in the electron transport chain. PMID- 29343424 TI - IGF1/MAPK/ERK signaling pathway-mediated programming alterations of adrenal cortex cell proliferation by prenatal caffeine exposure in male offspring rats. AB - Our previous study proposed a glucocorticoid-insulin-like growth factor 1 (GC IGF1) axis programming mechanism for prenatal caffeine exposure (PCE)-induced adrenal developmental dysfunction. Here, we focused on PCE-induced cell proliferation changes of the adrenal cortex in male offspring rats before and after birth and clarified the intrauterine programming mechanism. On gestational day (GD) 20, the PCE group had an elevated serum corticosterone level reduced fetal bodyweight, maximum adrenal sectional area, and elevated adrenal corticosterone and aldosterone contents. However, in postnatal week (PW) 6, the serum corticosterone level was decreased, and the bodyweight, with catch-up growth, adrenal cortex maximum cross-sectional area and aldosterone content were relatively increased, while the adrenal corticosterone content was lower. On GD20, the expression of adrenal IGF1, IGF1R and proliferating cell nuclear antigen (PCNA) were decreased, while the expression of these factors at PW6 were increased in the PCE group. Fetal adrenal gene chip analysis suggested that the mitogen-activated protein kinase/extracellular regulated protein kinase (MAPK/ERK) signal pathway was suppressed in the PCE group. Moreover, in the rat primary adrenal cells, corticosterone (rather than caffeine) was shown to significantly inhibit cell proliferation, IGF1 and PCNA expression, and ERK phosphorylation, which could be reversed by exogenous IGF1. Meanwhile, the effects of exogenous IGF1 were reversed by the ERK pathway inhibitor (PD184161). In conclusion, PCE could induce programming alterations in adrenal cortical cell proliferation before and after birth in male offspring rats. The underlying mechanism is associated with the inhibition of fetal adrenal IGF1-related MAPK/ERK signaling pathway caused by high glucocorticoid levels. PMID- 29343426 TI - Environmental Mycobacterium avium subsp. hominissuis have a higher probability to act as a recipient in conjugation than clinical strains. AB - Mycobacterium avium subsp. hominissuis (MAH) is a widespread opportunistic pathogen that can be isolated from environment (dust, soil and water) and patients with lung or lymphnode infection. In our previous research we revealed the pronounced genetic diversity in MAH by identifying eight different types of a newly described genomic island. In order to identify mechanisms of such horizontal gene transfer we now analyzed the ability of 47 MAH isolates to inherit the conjugative plasmid pRAW from M. marinum. A higher percentage of environmental isolates (22.7%) compared to clinical isolates (8%) had the capacity to function as recipient in conjugal plasmid transfer. Genetic analysis showed additionally that environmental isolates contained more genes homologous to genes present on conjugative mycobacterial plasmids than clinical isolates. Comparative analysis of the genomes of the isolates pointed to a possible association between the ability to act as recipient in conjugation and the structure of a genomic region containing the radC gene and a type I restriction/modification system. Finally we found that uptake of pRAW decreased the resistance against various antibiotics. PMID- 29343427 TI - Controlled attenuation parameter and alcoholic hepatic steatosis: Diagnostic accuracy and role of alcohol detoxification. AB - BACKGROUND & AIMS: Controlled attenuation parameter (CAP) is a novel non-invasive measure of hepatic steatosis, but it has not been evaluated in alcoholic liver disease. Therefore, we aimed to validate CAP for the assessment of biopsy verified alcoholic steatosis and to study the effect of alcohol detoxification on CAP. METHODS: This was a cross-sectional biopsy-controlled diagnostic study in four European liver centres. Consecutive alcohol-overusing patients underwent concomitant CAP, regular ultrasound, and liver biopsy. In addition, we measured CAP before and after admission for detoxification in a separate single-centre cohort. RESULTS: A total of 562 patients were included in the study: 269 patients in the diagnostic cohort with steatosis scores S0, S1, S2, and S3 = 77 (28%), 94 (35%), 64 (24%), and 34 (13%), respectively. CAP diagnosed any steatosis and moderate steatosis with fair accuracy (area under the receiver operating characteristic curve [AUC] >=S1 = 0.77; 0.71-0.83 and AUC >=S2 = 0.78; 0.72 0.83), and severe steatosis with good accuracy (AUC S3 = 0.82; 0.75-0.88). CAP was superior to bright liver echo pattern by regular ultrasound. CAP above 290 dB/m ruled in any steatosis with 88% specificity and 92% positive predictive value, while CAP below 220 dB/m ruled out steatosis with 90% sensitivity, but 62% negative predictive value. In the 293 patients who were admitted 6.3 days (interquartile range 4-6) for detoxification, CAP decreased by 32 +/- 47 dB/m (p <0.001). Body mass index predicted higher CAP in both cohorts, irrespective of drinking pattern. Obese patients with body mass index >=30 kg/m2 had a significantly higher CAP, which did not decrease significantly during detoxification. CONCLUSIONS: CAP has a good diagnostic accuracy for diagnosing severe alcoholic liver steatosis and can be used to rule in any steatosis. In non obese but not in obese, patients, CAP rapidly declines after alcohol withdrawal. LAY SUMMARY: CAP is a new ultrasound-based technique for measuring fat content in the liver, but has never been tested for fatty liver caused by alcohol. Herein, we examined 562 patients in a multicentre setting. We show that CAP highly correlates with liver fat, and patients with a CAP value above 290 dB/m were highly likely to have more than 5% fat in their livers, determined by liver biopsy. CAP was also better than regular ultrasound for determining the severity of alcoholic fatty-liver disease. Finally, we show that three in four (non-obese) patients rapidly decrease in CAP after short-term alcohol withdrawal. In contrast, obese alcohol-overusing patients were more likely to have higher CAP values than lean patients, irrespective of drinking. PMID- 29343428 TI - Development and pre-clinical evaluation in the swine model of a mucosal vaccine tablet for human influenza viruses: A proof-of-concept study. AB - Liquid vaccine formulations present some disadvantages such as stability problems, cold chain requirement or administration by trained personnel. Vaccine formulated as tablets would present a wide range of progress such as an increase stability that would facilitate the administration, the distribution and the storage of vaccine formulations. This work investigates the possibility to develop a mucosal tablet vaccine for human influenza viruses. The tablets were tested in vitro for biological efficacy and stability and in vivo in swine as a model for influenza A virus immunity. First, the ability to produce by compaction a stable vaccine with a preserved antigen was demonstrated. In a second part, vaccine tablets were used to immunize pigs. After positioning the tablets on the buccal mucosa, the animals were challenged by inoculation of the A/H1N1 pandemic virus. The responses were compared to those observed in animals vaccinated intramuscularly with the commercial liquid vaccine. It was observed signs of priming of the pig's immune system with vaccine tablets, even if the immune response stayed lower than vaccination by intramuscular route. Thus, we present attractive results that indicate a promising potential for mucosal vaccine tablets. PMID- 29343429 TI - Translational control of human acetyl-CoA carboxylase 1 mRNA is mediated by an internal ribosome entry site in response to ER stress, serum deprivation or hypoxia mimetic CoCl2. AB - Acetyl-CoA carboxylase 1 (ACC1) is a cytosolic enzyme catalyzing the rate limiting step in de novo fatty acid biosynthesis. There is mounting evidence showing that ACC1 is susceptible to dysregulation and that it is over-expressed in liver diseases associated with lipid accumulation and in several cancers. In the present study, ACC1 regulation at the translational level is reported. Using several experimental approaches, the presence of an internal ribosome entry site (IRES) has been established in the 5' untranslated region (5' UTR) of the ACC1 mRNA. Transfection experiments with the ACC1 5' UTR inserted in a dicistronic reporter vector show a remarkable increase in the downstream cistron translation, through a cap-independent mechanism. The endoplasmic reticulum (ER) stress condition and the related unfolded protein response (UPR), triggered by treatment with thapsigargin and tunicamycin, cause an increase of the cap-independent translation of ACC1 mRNA in HepG2 cells, despite the overall reduction in global protein synthesis. Other stress conditions, such as serum starvation and incubation with hypoxia mimetic agent CoCl2, up-regulate ACC1 expression in HepG2 cells at the translational level. Overall, these findings indicate that the presence of an IRES in the ACC1 5' UTR allows ACC1 mRNA translation in conditions that are inhibitory to cap-dependent translation. A potential involvement of the cap-independent translation of ACC1 in several pathologies, such as obesity and cancer, has been discussed. PMID- 29343430 TI - Cardiolipin synthesizing enzymes form a complex that interacts with cardiolipin dependent membrane organizing proteins. AB - The mitochondrial glycerophospholipid cardiolipin plays important roles in mitochondrial biology. Most notably, cardiolipin directly binds to mitochondrial proteins and helps assemble and stabilize mitochondrial multi-protein complexes. Despite their importance for mitochondrial health, how the proteins involved in cardiolipin biosynthesis are organized and embedded in mitochondrial membranes has not been investigated in detail. Here we show that human PGS1 and CLS1 are constituents of large protein complexes. We show that PGS1 forms oligomers and associates with CLS1 and PTPMT1. Using super-resolution microscopy, we observed well-organized nanoscale structures formed by PGS1. Together with the observation that cardiolipin and CLS1 are not required for PGS1 to assemble in the complex we predict the presence of a PGS1-centered cardiolipin-synthesizing scaffold within the mitochondrial inner membrane. Using an unbiased proteomic approach we found that PGS1 and CLS1 interact with multiple cardiolipin-binding mitochondrial membrane proteins, including prohibitins, stomatin-like protein 2 and the MICOS components MIC60 and MIC19. We further mapped the protein-protein interaction sites between PGS1 and itself, CLS1, MIC60 and PHB. Overall, this study provides evidence for the presence of a cardiolipin synthesis structure that transiently interacts with cardiolipin-dependent protein complexes. PMID- 29343431 TI - Gasdermin D Flashes an Exit Signal for IL-1. AB - The IL-1 family of cytokines follows an unconventional pathway of secretion mostly associated with inflammatory cell death. In this issue of Immunity, (Evavold et al., 2017) report gasdermin D pores as channels for active IL-1 release in live phagocytic cells. PMID- 29343432 TI - HIV Immunogens: Affinity Is Key. AB - Generation of broadly neutralizing antibodies is a key aim of HIV vaccine design, but the precursor B cells are rare. Abbott et al. (2018) report that high affinity and avidity immunogens are required to promote maturation of low frequency B cells in germinal centers. PMID- 29343434 TI - A Long-Distance Relay-tionship between Tumor and Bone. AB - Myeloid cells, including neutrophils, are important regulators of tumor growth and metastasis. In Science, Engblom et al. (2017) reveal how lung tumors remotely engage bone-resident cells through a relay mechanism that achieves a sustained supply of tumor-promoting neutrophils. PMID- 29343433 TI - Oxysterol Sensing through the Receptor GPR183 Promotes the Lymphoid-Tissue Inducing Function of Innate Lymphoid Cells and Colonic Inflammation. AB - Group 3 innate lymphoid cells (ILC3s) sense environmental signals and are critical for tissue integrity in the intestine. Yet, which signals are sensed and what receptors control ILC3 function remain poorly understood. Here, we show that ILC3s with a lymphoid-tissue-inducer (LTi) phenotype expressed G-protein-coupled receptor 183 (GPR183) and migrated to its oxysterol ligand 7alpha,25 hydroxycholesterol (7alpha,25-OHC). In mice lacking Gpr183 or 7alpha,25-OHC, ILC3s failed to localize to cryptopatches (CPs) and isolated lymphoid follicles (ILFs). Gpr183 deficiency in ILC3s caused a defect in CP and ILF formation in the colon, but not in the small intestine. Localized oxysterol production by fibroblastic stromal cells provided an essential signal for colonic lymphoid tissue development, and inflammation-induced increased oxysterol production caused colitis through GPR183-mediated cell recruitment. Our findings show that GPR183 promotes lymphoid organ development and indicate that oxysterol-GPR183 dependent positioning within tissues controls ILC3 activity and intestinal homeostasis. PMID- 29343436 TI - Motile Collectors: Platelets Promote Innate Immunity. AB - Platelets migrate in vitro but the significance of platelet migration in vivo remains unclear. In a recent issue of Cell, Gaertner et al. (2017) demonstrate that active platelet migration in vivo promotes mechano-scavenging of bacterial pathogens and neutrophil activation. PMID- 29343435 TI - Paracrine Wnt5a-beta-Catenin Signaling Triggers a Metabolic Program that Drives Dendritic Cell Tolerization. AB - Despite recent advances, many cancers remain refractory to available immunotherapeutic strategies. Emerging evidence indicates that the tolerization of local dendritic cells (DCs) within the tumor microenvironment promotes immune evasion. Here, we have described a mechanism by which melanomas establish a site of immune privilege via a paracrine Wnt5a-beta-catenin-peroxisome proliferator activated receptor-gamma (PPAR-gamma) signaling pathway that drives fatty acid oxidation (FAO) in DCs by upregulating the expression of the carnitine palmitoyltransferase-1A (CPT1A) fatty acid transporter. This FAO shift increased the protoporphyrin IX prosthetic group of indoleamine 2,3-dioxgenase-1 (IDO) while suppressing interleukin(IL)-6 and IL-12 cytokine expression, culminating in enhanced IDO activity and the generation of regulatory T cells. We demonstrated that blockade of this pathway augmented anti-melanoma immunity, enhanced the activity of anti-PD-1 antibody immunotherapy, and suppressed disease progression in a transgenic melanoma model. This work implicates a role for tumor-mediated metabolic reprogramming of local DCs in immune evasion and immunotherapy resistance. PMID- 29343437 TI - Memory B Cells that Cross-React with Group 1 and Group 2 Influenza A Viruses Are Abundant in Adult Human Repertoires. AB - Human B cell antigen-receptor (BCR) repertoires reflect repeated exposures to evolving influenza viruses; new exposures update the previously generated B cell memory (Bmem) population. Despite structural similarity of hemagglutinins (HAs) from the two groups of influenza A viruses, cross-reacting antibodies (Abs) are uncommon. We analyzed Bmem compartments in three unrelated, adult donors and found frequent cross-group BCRs, both HA-head directed and non-head directed. Members of a clonal lineage from one donor had a BCR structure similar to that of a previously described Ab, encoded by different gene segments. Comparison showed that both Abs contacted the HA receptor-binding site through long heavy-chain third complementarity determining regions. Affinities of the clonal-lineage BCRs for historical influenza-virus HAs from both group 1 and group 2 viruses suggested that serial responses to seasonal influenza exposures had elicited the lineage and driven affinity maturation. We propose that appropriate immunization regimens might elicit a comparably broad response. PMID- 29343439 TI - The Family of LPS Signal Transducers Increases: the Arrival of Chanzymes. AB - After LPS recognition, the MyD88-dependent and the TRIF-dependent pathways are consecutively activated in macrophages. Schappe et al. (2018) show that the chanzyme TRPM7 is required for an efficient LPS receptor complex endosomal relocation and the activation of the TRIF pathway. PMID- 29343441 TI - moDCs, Less Problems. AB - Type 1 conventional dendritic cells are necessary for the development of anti tumor immunity. In this issue of Immunity, Sharma et al. (2018) identify a phenotypically similar monocyte-derived population within inflamed tumors that promotes T cell responses during therapy. PMID- 29343438 TI - Regulation of the Immune Response by the Aryl Hydrocarbon Receptor. AB - The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that is activated by small molecules provided by the diet, microorganisms, metabolism, and pollutants. AhR is expressed by a number of immune cells, and thus AhR signaling provides a molecular pathway that integrates the effects of the environment and metabolism on the immune response. Studies have shown that AhR signaling plays important roles in the immune system in health and disease. As its activity is regulated by small molecules, AhR also constitutes a potential target for therapeutic immunomodulation. In this review we discuss the role of AhR in the regulation of the immune response in the context of autoimmunity, infection, and cancer, as well as the potential opportunities and challenges of developing AhR-targeted therapeutics. PMID- 29343440 TI - Chanzyme TRPM7 Mediates the Ca2+ Influx Essential for Lipopolysaccharide-Induced Toll-Like Receptor 4 Endocytosis and Macrophage Activation. AB - Toll-like receptors (TLRs) sense pathogen-associated molecular patterns to activate the production of inflammatory mediators. TLR4 recognizes lipopolysaccharide (LPS) and drives the secretion of inflammatory cytokines, often contributing to sepsis. We report that transient receptor potential melastatin-like 7 (TRPM7), a non-selective but Ca2+-conducting ion channel, mediates the cytosolic Ca2+ elevations essential for LPS-induced macrophage activation. LPS triggered TRPM7-dependent Ca2+ elevations essential for TLR4 endocytosis and the subsequent activation of the transcription factor IRF3. In a parallel pathway, the Ca2+ signaling initiated by TRPM7 was also essential for the nuclear translocation of NFkappaB. Consequently, TRPM7-deficient macrophages exhibited major deficits in the LPS-induced transcriptional programs in that they failed to produce IL-1beta and other key pro-inflammatory cytokines. In accord with these defects, mice with myeloid-specific deletion of Trpm7 are protected from LPS-induced peritonitis. Our study highlights the importance of Ca2+ signaling in macrophage activation and identifies the ion channel TRPM7 as a central component of TLR4 signaling. PMID- 29343443 TI - New Job for NK Cells: Architects of the Tumor Microenvironment. AB - NK cells control tumor growth directly through targeted cytotoxic granule release or cytokine secretion and indirectly by orchestrating anti-tumor immune responses. In this issue of Immunity, Glasner et al. (2018) now reveal a new role for NK cells in preventing metastatic spread through controlling tumor architecture. PMID- 29343442 TI - The Transcription Factor STAT6 Mediates Direct Repression of Inflammatory Enhancers and Limits Activation of Alternatively Polarized Macrophages. AB - The molecular basis of signal-dependent transcriptional activation has been extensively studied in macrophage polarization, but our understanding remains limited regarding the molecular determinants of repression. Here we show that IL 4-activated STAT6 transcription factor is required for the direct transcriptional repression of a large number of genes during in vitro and in vivo alternative macrophage polarization. Repression results in decreased lineage-determining transcription factor, p300, and RNA polymerase II binding followed by reduced enhancer RNA expression, H3K27 acetylation, and chromatin accessibility. The repressor function of STAT6 is HDAC3 dependent on a subset of IL-4-repressed genes. In addition, STAT6-repressed enhancers show extensive overlap with the NF kappaB p65 cistrome and exhibit decreased responsiveness to lipopolysaccharide after IL-4 stimulus on a subset of genes. As a consequence, macrophages exhibit diminished inflammasome activation, decreased IL-1beta production, and pyroptosis. Thus, the IL-4-STAT6 signaling pathway establishes an alternative polarization-specific epigenenomic signature resulting in dampened macrophage responsiveness to inflammatory stimuli. PMID- 29343446 TI - S-adenosyl methionine prevents ASD like behaviors triggered by early postnatal valproic acid exposure in very young mice. AB - INTRODUCTION: A common animal model of ASD is the one induced by valproic acid (VPA), inducing epigenetic changes and oxidative stress. We studied the possible preventive effect of the methyl donor for epigenetic enzymatic reactions, S adenosine methionine (SAM), on ASD like behavioral changes and on redox potential in the brain and liver in this model. METHODS: ICR albino mice were injected on postnatal day 4 with one dose of 300 mg/kg of VPA, with normal saline (controls) or with VPA and SAM that was given orally for 3 days at the dose of 30 mg/kg body weight. From day 50, we carried out neurobehavioral tests and assessment of the antioxidant status of the prefrontal cerebral cortex, liver assessing SOD and CAT activity, lipid peroxidation and the expression of antioxidant genes. RESULTS: Mice injected with VPA exhibited neurobehavioral deficits typical of ASD that were more prominent in males. Changes in the activity of SOD and CAT increased lipid peroxidation and changes in the expression of antioxidant genes were observed in the prefrontal cortex of VPA treated mice, more prominent in females, while ASD like behavior was more prominent in males. There were no changes in the redox potential of the liver. The co-administration of VPA and SAM alleviated most ASD like neurobehavioral symptoms and normalized the redox potential in the prefrontal cortex. CONCLUSIONS: Early postnatal VPA administration induces ASD like behavior that is more severe in males, while the redox status changes are more severe in females; SAM corrects both. VPA-induced ASD seems to result from epigenetic changes, while the redox status changes may be secondary. PMID- 29343444 TI - Activation of p53 in Immature Myeloid Precursor Cells Controls Differentiation into Ly6c+CD103+ Monocytic Antigen-Presenting Cells in Tumors. AB - CD103+ dendritic cells are critical for cross-presentation of tumor antigens. Here we have shown that during immunotherapy, large numbers of cells expressing CD103 arose in murine tumors via direct differentiation of Ly6c+ monocytic precursors. These Ly6c+CD103+ cells could derive from bone-marrow monocytic progenitors (cMoPs) or from peripheral cells present within the myeloid-derived suppressor cell (MDSC) population. Differentiation was controlled by inflammation induced activation of the transcription factor p53, which drove upregulation of Batf3 and acquisition of the Ly6c+CD103+ phenotype. Mice with a targeted deletion of p53 in myeloid cells selectively lost the Ly6c+CD103+ population and became unable to respond to multiple forms of immunotherapy and immunogenic chemotherapy. Conversely, increasing p53 expression using a p53-agonist drug caused a sustained increase in Ly6c+CD103+ cells in tumors during immunotherapy, which markedly enhanced the efficacy and duration of response. Thus, p53-driven differentiation of Ly6c+CD103+ monocytic cells represents a potent and previously unrecognized target for immunotherapy. PMID- 29343445 TI - Development, regulation, metabolism and function of bone marrow adipose tissues. AB - Most adipocytes exist in discrete depots throughout the body, notably in well defined white and brown adipose tissues. However, adipocytes also reside within specialized niches, of which the most abundant is within bone marrow. Whereas bone marrow adipose tissue (BMAT) shares many properties in common with white adipose tissue, the distinct functions of BMAT are reflected by its development, regulation, protein secretion, and lipid composition. In addition to its potential role as a local energy reservoir, BMAT also secretes proteins, including adiponectin, RANK ligand, dipeptidyl peptidase-4, and stem cell factor, which contribute to local marrow niche functions and which may also influence global metabolism. The characteristics of BMAT are also distinct depending on whether marrow adipocytes are contained within yellow or red marrow, as these can be thought of as 'constitutive' and 'regulated', respectively. The rBMAT for instance can be expanded or depleted by myriad factors, including age, nutrition, endocrine status and pharmaceuticals. Herein we review the site specificity, age related development, regulation and metabolic characteristics of BMAT under various metabolic conditions, including the functional interactions with bone and hematopoietic cells. PMID- 29343447 TI - Altered B lymphocyte homeostasis and functions in systemic sclerosis. AB - Beyond the production of autoantibodies, B-cells are thought to play a role in systemic sclerosis (SSc) by secreting proinflammatory/profibrotic cytokines. B cells are a heterogeneous population with different subsets distinguished by their phenotypes and cytokine production. Data about B-cell subsets, cytokine production and intracellular pathways leading to this production are scarce in SSc. The aim of our study was to describe B-cell homeostasis, activation, proliferation, cytokine production in B-cells and serum and B-cell intracellular signaling pathways in SSc. We hypothezided that B-cell homeostasis and cytokine production were altered in SSc and could be explained by serum cytokine as well as by intracellular signaling pathway abnormalities. Forty SSc patients and 20 healthy controls (HC) were prospectively included. B-cell subsets were determined by flow cytometry using CD19, CD21, CD24, CD38, CD27, IgM and IgD. CD25, CD80, CD95, HLA-DR were used to assess B-cell activation. Intracellular production of IL-10 and IL-6 were assessed by flow cytometry after TLR9 and CD40 stimulation. IL-6, IL-10, Ki67, Bcl2 mRNA were quantified in B-cells. Cytokine production was also assessed in sera and supernatants of B-cell culture, using a multiplex approach. Signaling pathways were studied through phosphorylation of mTOR, ERK, STAT3, STAT5 using a flow cytometry approach. We found that SSc patients exhibited an altered peripheral blood B-cell subset distribution, with decreased memory B-cells but increased proportion of naive and CD21LoCD38Lo B-cell subsets. We observed an increased expression of activation markers (CD80, CD95, HLA-DR) on some B-cell subsets, mainly the memory B-cells. Secretion of IL-6, BAFF and CXCL13 were increased in SSc sera. There was no correlation between the peripheral blood B-cell subsets and the serum concentrations of these cytokines. After stimulation, we observed a lower proportion of IL-10 and IL-6 producing B cells in SSc. Finally, we observed a significant decrease of mTOR phosphorylation in SSc patient B-cells. In conclusion, we observed an altered B-cell homeostasis in SSc patients compared to HC. Memory B-cells were both decreased and activated in patients. IL-10 producing B-cells were decreased in SSc. This decrease was associated with an alteration of mTOR phosphorylation in B-cells. Conversely, there was no correlation between serum cytokine profile and B-cell homeostasis alterations. PMID- 29343449 TI - The comparative efficacy and safety of topical and intravenous tranexamic acid for reducing perioperative blood loss in Total knee arthroplasty- A randomized controlled non-inferiority trial. AB - BACKGROUND: Total Knee Arthroplasty (TKA) can be associated with significant perioperative blood loss and blood transfusions. This is a prospective randomised non-inferiority trial comparing intraarticular (IA) and intravenous (IV) routes of administering Tranexamic acid (TXA) with regard to efficacy and safety. METHODS: A total of 113 patients who underwent primary unilateral TKA from January to June 2017 randomly received either 1.5g TXA in 100mL normal saline solution (IA group, n=58) or 10mg/kg TXA (IV group, n=55) at 10min before the tourniquet inflation and at tourniquet release. Haemoglobin (Hb) drop on third day (primary outcome), visible blood loss (VBL), hidden blood loss (HBL), total blood loss (TBL), transfusion requirement, incidence of deep vein thrombosis (DVT), wound complications and renal function derangement (secondary outcomes) were recorded. RESULTS: The mean difference in haemoglobin drop between both groups was 0.25g/dL with 90% CI of -0.07 to 0.58. Since the lower bound of 90% CI was above equivalence margin of -0.35, IA group was found to be non-inferior to IV group in terms of Hb drop. The mean difference between both groups of VBL, HBL and TBL were 0.85mL (p value 0.90), -7.9mL (p value 0.90) and -6.2mL (p value 0.93) respectively. Transfusions and wound complications were statistically insignificant. None of the patients had DVT or renal function derangement. CONCLUSION: IA TXA is not inferior to IV TXA with regard to efficacy and safety and may be preferred considering ease of administration and lack of systemic absorption. PMID- 29343448 TI - Optimizing the dose of local infiltration analgesia and gabapentin for total knee arthroplasty, a randomized single blind trial in 128 patients. AB - BACKGROUND AND PURPOSE: Effective analgesia is essential for postoperative recovery and rehabilitation in TKA. The challenge of analgesic regimes is to obtain adequate pain relief and maximum muscle control to mobilize and rehabilitate patients early. However, the optimal dose and best composition are not known. We hypothesized that there would be no differences in reported postoperative pain on the day of the TKA surgery as well as the first day after surgery when different combinations of ropivacain for LIA and gabapentin are given. METHODS: This prospective randomized trial examined 128 TKA patients treated with LIA and gabapentin in four groups. Group A: 300-mg ropivacain/600 300-300-mg gabapentin. Group B: 150-mg ropivacain/600-300-300-mg gabapentin. Group C: 300-mg ropivacain/300-100-100-mg gabapentin. Group D: 150-mg ropivacain/300-100-100-mg gabapentin. Primary endpoint was pain (NRS) at multiple moments. Secondary endpoints were number of adverse effects, length of hospital stay (LOS), the amount of consumption of pain medication, and wound leakage. Generalized estimating equation (GEE) was used to detect differences between the four groups regarding the course of pain. RESULTS: No differences regarding adverse effects, LOS, and wound leakage were found. GEE revealed a significant difference in course of pain between group A and B, with group B experiencing higher NRS scores postoperatively than group A (p=0.021). No differences between the other groups were found. INTERPRETATION: The results of the current study suggest that LIA with 300-mg (150ml) ropivacain might be more effective than 150 mg (75ml) ropivacain. Alteration in dose of gabapentin appears not to have influence on the course of pain. PMID- 29343450 TI - Paediatric physeal sparing posterior cruciate ligament (PCL) reconstruction with parental donation allograft: Rationale and operative approach. AB - BACKGROUND: Paediatric PCL injuries are rare but constitute a significant management challenge. We describe a novel approach to the surgical management of an 11-year-old boy who presented with persisting symptomatic instability following 18months of failed conservative therapy. METHODS: PCL reconstruction was performed using a physeal sparing, all-inside technique under fluoroscopic control. This avoids the potential for iatrogenic growth injury. A parentally donated hamstrings allograft was used to ensure adequate graft size, and reinforced using a non-elastic two millimetre braided suture. Graft reinforcement safeguards against stretching during the early healing phase, but must be removed thereafter to avoid creating a physeal tether. RESULTS: At three months, clinical examination under anaesthesia showed equivalent PCL laxity in the operated knee compared to the normal contralateral knee. The graft reinforcement tape was incised as planned with no change in laxity assessment. Arthroscopic evaluation demonstrated a quiet joint with a well healed graft and no synovitis. Postoperative long leg radiographs showed no growth deformity against preoperative status. CONCLUSION: In paediatric patients with persisting symptomatic instability despite appropriate conservative management, surgical reconstruction of the PCL should be considered. Standard treatment has higher complication rates and poorer graft survival than in an adult cohort. Specific problems include iatrogenic growth plate injury causing growth arrest or angular deformity, inadequate graft size if using hamstrings autograft, and the additional technical challenge of small patient size. Early results from extra physeal, all-inside PCL reconstruction using a parentally donated allograft are promising and may provide an alternative solution to traditional surgical management. PMID- 29343451 TI - Biochemical characterization of halophilic, alkalithermophilic amylopullulanase PulD7 and truncated amylopullulanases PulD7DeltaN and PulD7DeltaC. AB - A pullulanase, PulD7, was identified in the genome of the halophilic, alkalithermophilic isolate Alkalilimnicola sp. NM-DCM-1. PulD7 is 701 amino acids large with a carbohydrate binding module (CBM) 48 at the N-terminal. The full length PulD7 and N- and C-terminal truncated versions were cloned, heterologously expressed and functionally characterized. PulD7 displayed maximal activity at 55 degrees C, pH 9.5 and 2 M NaCl. PulD7 had good thermal stability, with a half life of 693 min at 50 degrees C. PulD7 is an amylopullulanase, hydrolyzing both alpha-1,4- and alpha-1,6-glycosidic bonds in soluble starch and pullulan, respectively. PulD7 was resistant to chemical reagents, including organic solvents (dimethyl sulfoxide, methanol, benzene, 20% v/v), reducing agents (beta mercaptoethanol, 5% v/v), surfactants (SDS and Tween 20, 5% v/v), the divalent chelator ethylene diamine tetra acetic acid (5 mM), and the chemical denaturant urea (8 M). PulD7 was not calcium-dependent. PulD7 was able to bind raw starch granules, reaching 52% binding in 3 h. The N-and C-terminal truncated forms of PulD7 had similar biochemical characteristics. PulD7DeltaC had higher specific activity and halotolerance. The N-terminally truncated PulD7DeltaN hydrolyzed amylose only, indicating that CBM48 is essential for binding branched substrates. PulD7 has unique characteristics giving it strong potential for application in biotechnological industries. PMID- 29343452 TI - A cell-penetrating peptide conjugated carboxymethyl-beta-cyclodextrin to improve intestinal absorption of insulin. AB - In this study, a cell-penetrating peptide conjugate, R8-carboxymethyl-beta cyclodextrin (R8-CM-beta-CD), was synthesized, and then we prepared the supramolecular complex (insulin/R8-CM-beta-CD). The physicochemical properties of the complex were characterized. The supramolecular complex could facilitate the uptake of insulin, meanwhile, induce a significantly higher internalization of insulin. Interestingly, the transportation efficiency of insulin/R8-CM-beta-CD across the Caco-2 cell monolayer was about 3 times greater than that of insulin/CM-beta-CD. Further studies on the mechanism in increasing uptake efficiency showed that R8-CM-beta-CD was internalized via different styles of endocytosis and could inhibit P-glycoprotein (P-gp) efflux pumps. Importantly, the formulation of insulin/R8-CM-beta-CD showed the highest increase in the permeability of insulin and the best biological response in diabetic rats of all the treatments. In addition, no sign of toxicity was observed after administrations of R8-CM-beta-CD. These results demonstrated that R8-CM-beta-CD was a promising carrier for use in protein drug delivery. PMID- 29343453 TI - Polygonatum sibiricum polysaccharides play anti-cancer effect through TLR4 MAPK/NF-kappaB signaling pathways. AB - OBJECTIVE: To investigate the anti-cancer effect of Polygonatum sibiricum polysaccharides (PSP) and the underlying mechanism. METHODS: Tumor-bearing mice were randomly divided into normal saline (NS) group, adriamycin (ADM) group, PSP group and lipopolysaccharide (LPS) group. RAW264.7 cells were pre-treated with or without TLR4 inhibitor or MyD88 inhibitor. Quantitative RT-PCR and Western blot were performed to detect the mRNA and protein expressions, respectively. ELISA and Griess reaction was used to measure cytokines and NO levels. Flow cytometry was employed to examine T-lymphocyte subset and CCK-8 assay was used for cell viability. RESULTS: The in vivo experiment found that PSP inhibited tumor growth and improved the spleen index, thymus index, the cytokines secretion and CD4+/CD8+ lymphocytes ratio. Compared with the NS group, the mRNA and protein expressions of the critical nodes inTLR4-MAPK/NF-kappaB signaling pathways (except TRAM) significantly increased in PSP group, as well as the NO and cytokines levels. Nevertheless, PSP had no obvious effects on TRAM. Further analysis showed that PSP effects on the critical nodes in TLR4-MAPK/NF-kappaB signaling pathways were suppressed by inhibitor in vitro. CONCLUSION: The immunoenhancement effect of PSP against lung cancer is mediated by TLR4-MAPK/NF kappaB signaling pathways. PMID- 29343454 TI - Rational design and evaluation of HBsAg polymeric nanoparticles as antigen delivery carriers. AB - The present work is focused on the development and evaluation of single dose sustained-release Hepatitis B surface antigen (HBsAg) loaded nanovaccine for Hepatitis B. The conventional treatment suffers from repeated administration and hence requires a booster dose. Therefore, polymeric nanovaccine of HBsAg was developed by double emulsion solvent evaporation technique, utilizing central composite design for formulation optimization. The effects of independent variables (like polymer amount, stabilizer concentration, aqueous/organic phase ratio and homogenizer speed) were also studied on critical quality attributes like particle size and entrapment efficiency. Nanovaccine was characterized in terms of physicochemical parameters, release, internalization and in vivo immunological evaluation in BALB/c mice after administration by different routes such as oral, sub-cutaneous, nasal and intramuscular. The designed nanovaccine demonstrated nanometric size with smooth surface, negative zeta potential, maximum entrapment, sustained release and better internalization in macrophage and MRC-5 cell line. The immune-stimulating activity of nanovaccine administered by different routes was evaluated by measuring anti-HBsAg titre like specific immunoglobulin IgG and IgA response and cytokine level (interleukin-2, interferon Y) measurement. The results indicated that the nanovaccine administered by intramuscular route produced better humoral as well as cellular responses and potential carriers for antigen delivery at single dose administration via intramuscular route. PMID- 29343456 TI - EEG Dynamics and Neural Generators in Implicit Navigational Image Processing in Adults with ADHD. AB - In contrast to childhood ADHD that is characterized by inattention, impulsivity and hyperactivity, most adults with ADHD predominantly exhibit inattention. We used a new oddball paradigm using implicit navigational images and analyzed EEG dynamics with swLORETA inverse modeling of the evoked potential generators to study cortical processing in adults with ADHD and age-matched controls. In passive observation, we demonstrated that P350 amplitude, alpha-beta oscillation event-related synchronization (ERS) anticipation, and beta event-related desynchronization (ERD) were significantly smaller in ADHD. In the active condition, P100 duration was reduced and N140 amplitude increased for both deviant and frequent conditions in the ADHD. Alpha ERS and delta-theta ERS were reduced in the ADHD in the deviant condition. The left somatosensory area (BA2) and the right parietal lobe (BA31, BA40) contributed more to the P100 generators in the control than in the ADHD group, while the left frontal lobe (BA10) contributed more to the P100 generators in the ADHD. The left inferior parietal lobe (BA40) contributed more to the N140 generators in the control than the ADHD group while the right posterior cingulate (BA30) contributed more to the N140 generators in the ADHD. These findings reinforce the notion that earlier cortical stages of visual processing are compromised in adult ADHD by inducing the emergence of different even-related potential generators and EEG dynamics in ADHD. Considering that classical approaches for ADHD diagnosis are based on qualitative clinical investigation possibly biased by subjectivity, EEG analysis is another objective tool that might contribute to diagnosis, future neurofeedback or brain stimulation therapies. PMID- 29343457 TI - Sphingolipid signaling in renal fibrosis. AB - Over the last decade, various sphingolipid subspecies have gained increasing attention as important signaling molecules that regulate a multitude of physiological and pathophysiological processes including inflammation and tissue remodeling. These mediators include ceramide, sphingosine 1-phosphate (S1P), the cerebroside glucosylceramide, lactosylceramide, and the gangliosides GM3 and Gb3. These lipids have been shown to accumulate in various chronic kidney diseases that typically end in renal fibrosis and ultimately renal failure. This review will summarize the effects and contributions of those enzymes that regulate the generation and interconversion of these lipids, notably the acid sphingomyelinase, the acid sphingomyelinase-like protein SMPDL3B, the sphingosine kinases, the S1P lyase, the glucosylceramide synthase, the GM3 synthase, and the alpha-galactosidase A, to renal fibrotic diseases. Strategies of manipulating these enzymes for therapeutic purposes and the impact of existing drugs on renal pathologies will be discussed. PMID- 29343455 TI - Adolescent Social Stress Increases Anxiety-like Behavior and Alters Synaptic Transmission, Without Influencing Nicotine Responses, in a Sex-Dependent Manner. AB - Early-life stress is a risk factor for comorbid anxiety and nicotine use. Because little is known about the factors underlying this comorbidity, we investigated the effects of adolescent stress on anxiety-like behavior and nicotine responses within individual animals. Adolescent male and female C57BL/6J mice were exposed to chronic variable social stress (CVSS; repeated cycles of social isolation + social reorganization) or control conditions from postnatal days (PND) 25-59. Anxiety-like behavior and social avoidance were measured in the elevated plus maze (PND 61-65) and social approach-avoidance test (Experiment 1: PND 140-144; Experiment 2: 95-97), respectively. Acute nicotine-induced locomotor, hypothermic, corticosterone responses, (Experiment 1: PND 56-59; Experiment 2: PND 65-70) and voluntary oral nicotine consumption (Experiment 1: PND 116-135; Experiment 2: 73-92) were also examined. Finally, we assessed prefrontal cortex (PFC) and nucleus accumbens (NAC) synaptic transmission (PND 64-80); brain regions that are implicated in anxiety and addiction. Mice exposed to adolescent CVSS displayed increased anxiety-like behavior relative to controls. Further, CVSS altered synaptic excitability in PFC and NAC neurons in a sex-specific manner. For males, CVSS decreased the amplitude and frequency of spontaneous excitatory postsynaptic currents in the PFC and NAC, respectively. In females, CVSS decreased the amplitude of spontaneous inhibitory postsynaptic currents in the NAC. Adolescent CVSS did not affect social avoidance or nicotine responses and anxiety-like behavior was not reliably associated with nicotine responses within individual animals. Taken together, complex interactions between PFC and NAC function may contribute to adolescent stress-induced anxiety-like behavior without influencing nicotine responses. PMID- 29343458 TI - Right ventricular fibrosis and dysfunction: Actual concepts and common misconceptions. AB - Fibrosis and remodeling of the right ventricle (RV) are associated with RV dysfunction and mortality of patients with pulmonary hypertension (PH) but it is unknown how much RV fibrosis contributes to RV dysfunction and mortality. RV fibrosis manifests as fibroblast accumulation and collagen deposition which may be excessive. Although extracellular matrix deposition leads to elevated ventricular stiffness, it is not known to which extent it affects RV function. Various animal models of pulmonary hypertension have been established to investigate the role of fibrosis in RV dysfunction and failure. However, they do not perfectly resemble the human disease. In the current review we describe the major characteristics of RV fibrosis, molecular mechanisms regulating the fibrotic process, and discuss how therapeutic targeting of fibrosis might affect RV function. PMID- 29343459 TI - Differing structural properties of foods affect the development of mandibular control and muscle coordination in infants and young children. AB - The development of chewing is an essential motor skill that is continually refined throughout early childhood. From a motor control perspective, the advancement of textures is dependent upon the fit between a child's oral anatomic and motor system and food properties. The purpose of this exploratory study is to identify age-related changes in chewing motor coordination and control and to determine if these changes are associated with the differing structural properties of solid foods, as well as to explore the role of explanatory variables such as the emergence of teeth and bite force. The masticatory muscle coordination (i.e., coupling of synergistic and antagonistic muscle pairs) and control (i.e., speed, displacement, chewing rate, duration, and number of chews) of fifty children were assessed cross-sectionally at five ages: 9-, 12-, 18-, 24 , and 36-months using electromyography (EMG) and 3D optical motion capture while children ate three foods that had differing structural properties. The results of this study found that children made gains in their chewing motor control (decreased duration of chewing sequences and lateral jaw displacement) and coordination (improved jaw muscle coupling) throughout this period. The structural differences in foods also affected chewing performance at all ages. These preliminary findings suggest that some solid textures are better adapted for immature mandibular control than others and that the development of chewing is a protracted process that may be impacted by the emergence of teeth and changes to bite force. PMID- 29343460 TI - Facebook Groups for the Management of Chronic Diseases. AB - The use of Facebook groups by health care researchers and professionals for chronic disease management, namely type 2 diabetes mellitus and coronary heart disease, is in its early stages and challenges are emerging. While Facebook groups offer great potential to deliver health support, research of Facebook groups for chronic disease management remains in its infancy, with robust evidence not yet available. Designing Facebook groups that are acceptable to users, health care researchers as well as health care professionals is a challenge, and there is a poor fit with traditional research and evaluation methods. Key recommendations for future research of Facebook groups for chronic disease management include: (1) iterative content development with input from the target patient population; (2) further understanding of the potential role of group "champions"; (3) ensuring the social media policies of health care institutions allow for real time online communication; and (4) utilizing comprehensive evaluation strategies, including the use of process evaluations. PMID- 29343462 TI - A Tailored Web-based Advice Tool for Skiers and Snowboarders: Protocol for a Randomized Controlled Trial. AB - BACKGROUND: Being active in sports has many positive health effects. The direct effects of engaging in regular physical activity are particularly apparent in the prevention of several chronic diseases, including cardiovascular disease, diabetes, cancer, hypertension, obesity, depression, and osteoporosis. Besides the beneficial health effects of being active, sports participation is unfortunately also associated with a risk of injuries. In the case of many sports injuries (eg, winter sports) preventive measures are not compulsory, which means that a behavioral change in sports participants is necessary to increase the use of effective measures, and subsequently prevent or reduce injuries in sports. OBJECTIVE: The evidence-based Wintersportklaar online intervention has been developed to stimulate injury preventive behavior among skiers and snowboarders. In this article, the design of the effectiveness study will be described. METHODS: A randomized controlled trial with a follow-up period of four months during the winter sport season will be conducted. The participants consist of inexperienced skiers and snowboarders. At baseline, skiers and snowboarders in the intervention and control groups are asked to report the injury preventive measures they usually take during their preparation for their winter sport holiday. One and three months after baseline, skiers and snowboarders are asked to report retrospectively in detail what measures they took regarding injury prevention during their current winter sport preparation and winter sport holiday. Descriptive analyses (mean, standard deviation, frequency, range) are conducted for the different baseline variables in both study groups. To evaluate the success of the randomization, baseline values are analyzed for differences between the intervention and control groups (chi square, independent T tests and/or Mann-Whitney test). Chi square tests and/or logistic regression analyses are used to analyze behavioral change according to the intention to treat principle (as initially assigned). RESULTS: The project was funded in 2016 and enrolment was completed in 2017. Data analysis is currently under way and the first results are expected to be submitted for publication in 2018. CONCLUSIONS: To combat the negative side effects of sports participation, the use of injury preventive measures is desirable. As the use of injury prevention is usually not compulsory in skiing and snowboarding, a behavioral change is necessary to increase the use of effective injury preventive measures in winter sports. TRIAL REGISTRATION: Dutch Trial Registry NTR6233; http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=6233 (Archived by WebCite at http://www.webcitation.org/6wXZPzjUi). PMID- 29343461 TI - Effects of Psychiatric Comorbidity in Immune-Mediated Inflammatory Disease: Protocol for a Prospective Study. AB - BACKGROUND: Immune-mediated inflammatory diseases (IMID), such as inflammatory bowel disease (IBD), multiple sclerosis (MS), and rheumatoid arthritis (RA), are highly prevalent in Canada and the United States and result in substantial personal and societal burden. The prevalence of psychiatric comorbidities, primarily depression and anxiety, in IMID exceeds those in the general population by two- to threefold, but remains underdiagnosed and undertreated. Furthermore, the effects of psychiatric comorbidity on IMID are not well understood. OBJECTIVE: The objectives of this study were (1) to compare health-related quality of life and work ability in persons with IMID and psychiatric comorbidity with those of persons with IMID without psychiatric comorbidity and with those of persons with depression and anxiety disorders alone, and (2) to validate existing case identification tools for depression and anxiety in persons with IMID to facilitate improved identification of depression and anxiety by clinicians. To achieve these objectives, we designed a prospective 3-year longitudinal study. In this paper, we aim to describe the study rationale and design and the characteristics of study participants. METHODS: Between November 2014 and July 2016, we recruited 982 individuals from multiple clinic and community sources; 18 were withdrawn due to protocol violations. RESULTS: The final study sample included 247 participants with IBD, 255 with MS, 154 with RA, and 308 with depression or anxiety. The majority were white, with the proportion ranging from 85.4% (IBD [210/246]; MS [217/254]) to 74.5% (114/153, RA; P=.01). There was a female predominance in all groups, which was highest in the RA cohort (84.4%, 130/154) and least marked in the IBD cohort (62.7%, 155/247). Participants with depression or anxiety were more likely to be single (36.0%, 111/308) than participants in any other group (11.8% [30/255]-22.7% [56/247], P<.001). CONCLUSIONS: This paper presents the rationale for this study, describes study procedures, and characterizes the cohort enrolled. Ultimately, the aim is improved care for individuals affected by IMID. PMID- 29343463 TI - The Impact of mHealth Interventions: Systematic Review of Systematic Reviews. AB - BACKGROUND: Mobile phone usage has been rapidly increasing worldwide. mHealth could efficiently deliver high-quality health care, but the evidence supporting its current effectiveness is still mixed. OBJECTIVE: We performed a systematic review of systematic reviews to assess the impact or effectiveness of mobile health (mHealth) interventions in different health conditions and in the processes of health care service delivery. METHODS: We used a common search strategy of five major scientific databases, restricting the search by publication date, language, and parameters in methodology and content. Methodological quality was evaluated using the Measurement Tool to Assess Systematic Reviews (AMSTAR) checklist. RESULTS: The searches resulted in a total of 10,689 articles. Of these, 23 systematic reviews (371 studies; more than 79,665 patients) were included. Seventeen reviews included studies performed in low- and middle-income countries. The studies used diverse mHealth interventions, most frequently text messaging (short message service, SMS) applied to different purposes (reminder, alert, education, motivation, prevention). Ten reviews were rated as low quality (AMSTAR score 0-4), seven were rated as moderate quality (AMSTAR score 5-8), and six were categorized as high quality (AMSTAR score 9-11). A beneficial impact of mHealth was observed in chronic disease management, showing improvement in symptoms and peak flow variability in asthma patients, reducing hospitalizations and improving forced expiratory volume in 1 second; improving chronic pulmonary diseases symptoms; improving heart failure symptoms, reducing deaths and hospitalization; improving glycemic control in diabetes patients; improving blood pressure in hypertensive patients; and reducing weight in overweight and obese patients. Studies also showed a positive impact of SMS reminders in improving attendance rates, with a similar impact to phone call reminders at reduced cost, and improved adherence to tuberculosis and human immunodeficiency virus therapy in some scenarios, with evidence of decrease of viral load. CONCLUSIONS: Although mHealth is growing in popularity, the evidence for efficacy is still limited. In general, the methodological quality of the studies included in the systematic reviews is low. For some fields, its impact is not evident, the results are mixed, or no long-term studies exist. Exceptions include the moderate quality evidence of improvement in asthma patients, attendance rates, and increased smoking abstinence rates. Most studies were performed in high-income countries, implying that mHealth is still at an early stage of development in low-income countries. PMID- 29343464 TI - Cardiorespiratory Fitness, Coronary Artery Calcium, and Cardiovascular Disease Events in a Cohort of Generally Healthy Middle-Age Men: Results From the Cooper Center Longitudinal Study. AB - BACKGROUND: A robust literature demonstrates that coronary artery calcification (CAC) and cardiorespiratory fitness (CRF) are independent predictors of cardiovascular disease (CVD) events. Much less is known about the joint associations of CRF and CAC with CVD risk. In the setting of high CAC, high versus low CRF has been associated with decreased CVD events. The goal of this study was to assess the effect of continuous levels of CRF on CVD risk in the setting of increasing CAC burden. METHODS: We studied 8425 men without clinical CVD who underwent preventive medicine examinations that included an objective measurement of CRF and CAC between 1998 and 2007. There were 383 CVD events during an average follow-up of 8.4 years. Parametric proportional hazards regression models based on a Gompertz mortality rule were used to estimate total CVD incidence rates at 70 years of age as well as hazard ratios for the included covariates. RESULTS: CVD events increased with increasing CAC and decreased with increasing CRF. Adjusting for CAC level (scores of 0, 1-99, 100-399, and >=400), for each additional MET of fitness, there was an 11% lower risk for CVD events (hazard ratio, 0.89; 95% confidence interval, 0.84-0.94). When CAC and CRF were considered together, there was a strong association between continuous CRF and CVD incidence rates in all CAC groups. CONCLUSIONS: In a large cohort of generally healthy men, there is an attenuation of CVD risk at all CAC levels with higher CRF. PMID- 29343466 TI - Long-term cardiovascular prognosis after transient ischemic attack: Associated predictors. AB - OBJECTIVE: To determine long-term cardiovascular risk after TIA and to identify the factors associated with increased risk. METHODS: This was a prospective observational registry of TIA patients admitted to the emergency room of our tertiary stroke center from June 2006 to January 2016. New vascular events (NVEs) were recorded from 3 months after TIA onset until June 2017, including both stroke and nonstroke events (coronary and peripheral disease). We registered TIA etiology, age, sex, vascular risk factors, radiologic data, and clinical TIA features and analyzed these variables in relation to NVE long-term risk. RESULTS: In total, 676 patients 71.7 +/- 13.7 years of age were included, with a mean follow-up of 48.8 +/- 32.7 months. An NVE was detected in 173 patients (25.6%) without significant differences between event types (p = 0.84). Univariate analysis associated NVEs with etiologic subgroup, male sex, diabetes mellitus, hypertension, previous vascular disease, duration and clinical features of TIA, and signs of acute infarction. Multivariable analysis showed an independent association of NVEs with etiologic TIA subgroup, signs of acute infarction, and duration of TIA symptoms. Large artery atherosclerosis and cardioaortic embolism had the highest NVE risk, with a slightly higher percentage of nonstroke events. The small artery disease subgroup had the lowest NVE risk, with a higher percentage of stroke events. CONCLUSIONS: Etiology subgroup was the main factor determining high long-term risk of vascular events in patients with TIA. Large artery atherosclerosis carried the highest vascular risk, both nonstroke and stroke, followed by cardioaortic embolism. PMID- 29343465 TI - Sex differences in cerebrovascular pathologies on FLAIR in cognitively unimpaired elderly. AB - OBJECTIVE: To examine sex differences in cerebrovascular pathologies (CVPs) as seen on fluid-attenuated inversion recovery (FLAIR) MRI and in cardiovascular and metabolic risk factors in a population-based cognitively unimpaired cohort and to examine whether sex is independently associated with FLAIR findings after accounting for differences in important midlife risk factors. METHODS: We identified 1,301 cognitively normal participants (663 men and 638 women) enrolled in the Mayo Clinic Study of Aging (age >=70 years) who had FLAIR MRI and ascertained total burden of white matter (WM) hyperintensities (WMH), subcortical infarctions, and cortical infarctions. We compared CVPs and midlife and late-life vascular risk factors between men and women. We fit regression models with each CVP as an outcome, treating age, sex, and midlife risk factors as predictors. RESULTS: Women had significantly greater WMH volume relative to their WM volume compared to men (2.8% vs 2.4% of WM, p < 0.001), while men had a greater frequency of cortical infarctions compared to women (9% vs 4%, p < 0.001). Subcortical infarctions were equally common in men and women (20%). In regression modeling after adjustment for WM volume, the mean WMH volume difference between men and women was of the same magnitude as a 7-year difference in age. In contrast, men had 2.2-greater relative odds of having a cortical infarction compared to women. These sex differences persisted even after adjustment for midlife vascular risk factors. CONCLUSIONS: There were important sex differences in CVP findings on FLAIR in cognitively unimpaired elderly. Understanding these sex differences could aid in the development of sex-specific preventive strategies. PMID- 29343467 TI - Hearing impairment in patients with myotonic dystrophy type 2. AB - OBJECTIVE: To systematically assess auditory characteristics of a large cohort of patients with genetically confirmed myotonic dystrophy type 2 (DM2). METHODS: Patients with DM2 were included prospectively in an international cross-sectional study. A structured interview about hearing symptoms was held. Thereafter, standardized otologic examination, pure tone audiometry (PTA; 0.25, 0.5, 1, 2, 4, and 8 kHz), speech audiometry, tympanometry, acoustic middle ear muscle reflexes, and brainstem auditory evoked potentials (BAEP) were performed. The ISO 7029 standard was used to compare the PTA results with established hearing thresholds of the general population according to sex and age. RESULTS: Thirty-one Dutch and 25 French patients with DM2 (61% female) were included with a mean age of 57 years (range 31-78). The median hearing threshold of the DM2 cohort was higher for all measured frequencies, compared to the 50th percentile of normal (p < 0.001). Hearing impairment was mild in 39%, moderate in 21%, and severe in 2% of patients with DM2. The absence of an air-bone gap with PTA, concordant results of speech audiometry with PTA, and normal findings of BAEP suggest that the sensorineural hearing impairment is located in the cochlea. A significant correlation was found between hearing impairment and age, even when corrected for presbycusis. CONCLUSIONS: Cochlear sensorineural hearing impairment is a frequent symptom in patients with DM2, suggesting an early presbycusis. Therefore, we recommend informing about hearing impairment and readily performing audiometry when hearing impairment is suspected in order to propose early hearing rehabilitation with hearing aids when indicated. PMID- 29343468 TI - Onabotulinum toxin-A injections for sleep bruxism: A double-blind, placebo controlled study. AB - OBJECTIVES: To test the safety and efficacy of onabotulinum toxin-A (BoNT-A) injections into the masseter and temporalis muscles in patients with symptomatic sleep bruxism. METHODS: Participants 18 to 85 years old with clinically diagnosed sleep bruxism confirmed by polysomnography were enrolled in this randomized, placebo-controlled, 1:1, parallel-design trial with open-label extension. Participants were injected with BoNT-A 200 units (60 into each masseter and 40 into each temporalis) or placebo and were evaluated at 4 to 8 weeks after the initial treatment visit. The primary efficacy endpoint was clinical global impression (CGI), and the secondary efficacy endpoint was a visual analog scale (VAS) of change in bruxism and in pain at 4 to 8 weeks after injection. Exploratory endpoints included modified Montreal Bruxism Questionnaire, Headache Impact Test-6, total Pittsburgh Sleep Quality Index, Epworth Sleepiness Scale, Self-Rated Anxiety Scale, and polysomnography data, including EMG recordings of the masseter and temporalis muscle bruxing events. Adverse events were recorded. RESULTS: Thirty-one participants were recruited and 23 were randomized (19 female, age 47.4 +/- 16.9 years). All 13 randomized to BoNT-A and 9 of 10 randomized to placebo completed the study. CGI (p < 0.05) and VAS of change (p < 0.05) favored the BoNT-A group. None of the exploratory endpoints changed significantly, but total sleep time and number/duration of bruxing episodes favored the BoNT-A group. Two participants randomized to BoNT-A reported a cosmetic change in their smile. No dysphagia or masticatory adverse events were reported. CONCLUSIONS: BoNT-A effectively and safely improved sleep bruxism in this placebo-controlled pilot trial. A large multicenter trial is needed to confirm these encouraging data. CLINICALTRIALSGOV IDENTIFIER: NTC00908050. CLASS OF EVIDENCE: This study provides Class II evidence that botulinum injections into the masseter and temporalis muscles improve subjective bruxism and painful symptoms associated with sleep bruxism. PMID- 29343469 TI - Entrustable professional activities: A useful concept for neurology education. AB - Medical education is currently undergoing a paradigm shift from process-based to competency-based education, focused on measuring the desired competence of a physician. In an attempt to improve the assessment framework used for medical education, the concept of entrustable professional activities (EPAs) has gained traction. EPAs are defined as professional activities that can be entrusted to an individual in a clinical context. The Association of American Medical Colleges (AAMC) defined a set of 13 such EPAs to define the core of what all students should be able to do on day 1 of residency, regardless of specialty choice. The AAMC is currently piloting these EPAs with 10 medical schools to determine if EPAs can be used as a way to observe, measure, and entrust medical students with core clinical activities by the end of the clinical immersion experiences of the third year. The specialty of pediatrics is piloting the use of specialty-specific EPAs at 5 medical schools to assess readiness for transitions from medical school into pediatric residency training and practice. To date, no neurology-specific EPAs have been published for use in neurology clerkships or neurology residencies. This article introduces the concept of EPAs in the context of competency-based medical education and describes how EPAs might be relevant and applicable in neurologic education across the continuum. The Undergraduate Education Subcommittee of the American Academy of Neurology advocates for a proactive approach to incorporating core EPAs in undergraduate medical education and to considering an EPA-based specialty-specific assessment framework for neurology. PMID- 29343471 TI - Infantile-onset hand dystonia with intellectual disability: Clues to ARX mutations. PMID- 29343470 TI - Cognition in multiple sclerosis: State of the field and priorities for the future. AB - Cognitive decline is recognized as a prevalent and debilitating symptom of multiple sclerosis (MS), especially deficits in episodic memory and processing speed. The field aims to (1) incorporate cognitive assessment into standard clinical care and clinical trials, (2) utilize state-of-the-art neuroimaging to more thoroughly understand neural bases of cognitive deficits, and (3) develop effective, evidence-based, clinically feasible interventions to prevent or treat cognitive dysfunction, which are lacking. There are obstacles to these goals. Our group of MS researchers and clinicians with varied expertise took stock of the current state of the field, and we identify several important practical and theoretical challenges, including key knowledge gaps and methodologic limitations related to (1) understanding and measurement of cognitive deficits, (2) neuroimaging of neural bases and correlates of deficits, and (3) development of effective treatments. This is not a comprehensive review of the extensive literature, but instead a statement of guidelines and priorities for the field. For instance, we provide recommendations for improving the scientific basis and methodologic rigor for cognitive rehabilitation research. Toward this end, we call for multidisciplinary collaborations toward development of biologically based theoretical models of cognition capable of empirical validation and evidence-based refinement, providing the scientific context for effective treatment discovery. PMID- 29343472 TI - Clinical spectrum of hemiplegic migraine and chances of finding a pathogenic mutation. AB - OBJECTIVE: To investigate whether the clinical characteristics of patients with hemiplegic migraine with and without autosomal dominant mutations in CACNA1A, ATP1A2, or SCN1A differ, and whether the disease may be caused by mutations in other genes. METHODS: We compared the clinical characteristics of 208 patients with familial (n = 199) or sporadic (n = 9) hemiplegic migraine due to a mutation in CACNA1A, ATP1A2, or SCN1A with those of 73 patients with familial (n = 49) or sporadic (n = 24) hemiplegic migraine without a mutation in these genes. In addition, 47 patients (familial: n = 33; sporadic: n = 14) without mutations in CACNA1A, ATP1A2, or SCN1A were scanned for mutations in novel genes using whole exome sequencing. RESULTS: Patients with mutations in CACNA1A, ATP1A2, or SCN1A had a lower age at disease onset, larger numbers of affected family members, and more often attacks (1) triggered by mild head trauma, (2) with extensive motor weakness, and (3) with brainstem features, confusion, and brain edema. Mental retardation and progressive ataxia were exclusively found in patients with a mutation. Whole exome sequencing failed to identify pathogenic mutations in new genes. CONCLUSIONS: Most patients with hemiplegic migraine without a mutation in CACNA1A, ATP1A2, or SCN1A display a mild phenotype that is more akin to that of common (nonhemiplegic) migraine. A major fourth autosomal dominant gene for hemiplegic migraine remains to be identified. Our observations might guide physicians in selecting patients for mutation screening and in providing adequate genetic counseling. PMID- 29343473 TI - Smoking affects the interferon beta treatment response in multiple sclerosis. AB - OBJECTIVE: To investigate whether smoking in patients with relapsing-remitting multiple sclerosis (RRMS) treated with interferon beta (IFN-beta) is associated with the relapse rate and whether there is an interaction between smoking and human leukocyte antigen (HLA)-DRB1*15:01, HLA-A*02:01, and the N acetyltransferase-1 (NAT1) variant rs7388368A. METHODS: DNA from 834 IFN-beta treated patients with RRMS from the Danish Multiple Sclerosis Biobank was extracted for genotyping. Information about relapses from 2 years before the start of treatment to either the end of treatment or the last follow-up visit was obtained from the Danish Multiple Sclerosis Treatment Register. Smoking information came from a comprehensive questionnaire. RESULTS: We found that the relapse rate in patients with RRMS during IFN-beta treatment was higher in smokers compared to nonsmokers, with an incidence rate ratio (IRR) of 1.20 (95% confidence interval [CI] 1.021-1.416, p = 0.027) and with an IRR increase of 27% per pack of cigarettes per day (IRR 1.27, 95% CI 1.056-1.537, p = 0.012). We found no association or interaction with HLA and the NAT1 variant. CONCLUSION: In this observational cohort study, we found that smoking is associated with increased relapse activity in patients with RRMS treated with IFN-beta, but we found no association or interaction with HLA or the NAT1 variant. PMID- 29343475 TI - Staff shortages force mental health trusts to cancel patient activities and close wards, says King's Fund. PMID- 29343474 TI - Doctors do not feel protected when things go wrong. PMID- 29343476 TI - Role of Macrophage Socs3 in the Pathogenesis of Aortic Dissection. AB - BACKGROUND: Aortic dissection (AD) is a life-threatening medical emergency caused by the abrupt destruction of the intimomedial layer of the aortic walls. Given that previous studies have reported the involvement of proinflammatory cytokine interleukin-6 in AD pathogenesis, we investigated the role of signal transduction and activator of transcription 3 signaling, a downstream pathway of interleukin-6 in macrophages in pathogenesis of AD. METHODS AND RESULTS: We characterized the pathological and molecular events triggered by aortic stress, which can lead to AD. Aortic stress on the suprarenal aorta because of infrarenal aorta stiffening and angiotensin II infusion for 1 week caused focal medial rupture at the branching point of the celiac trunk and superior mesenteric artery. This focal medial rupture healed in 6 weeks in wild-type (WT) mice, but progressed to AD in mice with macrophage-specific deletion of Socs3 gene (mSocs3-KO). mSocs3-KO mice showed premature activation of cell proliferation, an inflammatory response, and skewed differentiation of macrophages toward the tissue-destructive phenotype. Concomitantly, they showed aberrant phenotypic modulation of smooth muscle cells and transforming growth factor beta signaling, which are likely to participate in tissue repair. Human AD samples revealed signal transduction and activator of transcription 3 activation in adventitial macrophages adjacent to the site of tissue destruction. CONCLUSIONS: These findings suggest that AD development is preceded by focal medial rupture, in which macrophage Socs3 maintains proper inflammatory response and differentiation of SMCs, thus promoting fibrotic healing to prevent tissue destruction and AD development. Understanding the sequence of the pathological and molecular events preceding AD development will help predict and prevent AD development and progression. PMID- 29343477 TI - Role of ASIC3, Nav1.7 and Nav1.8 in electroacupuncture-induced analgesia in a mouse model of fibromyalgia pain. AB - BACKGROUND: The mechanisms underlying fibromyalgia (FM) pain are not understood. The US Food and Drug Administration has recommended three drugs for treating FM namely, pregabalin, duloxetine and milnacipran; however, these medications are associated with severe side effects. OBJECTIVE: To create a mouse model of FM pain using dual injections of acidic saline to cause mechanical hyperalgesia and test whether ASIC3, Nav1.7 and Nav1.8 are involved in this process and whether electroacupuncture (EA) can reverse these phenomena. METHODS: The FM model was established by injecting acidic saline twice into 40 ICR mice. The mice were assigned to subgroups (n=8 each) treated with different EA frequencies (2, 15 and 50 Hz). ASIC3, Nav1.7 and Nav1.8 expression levels were measured by Western blotting and immunohistochemistry. RESULTS: Significant mechanical hyperalgesia was induced on day 8 in FM mice, which was reversed by 2, 15 and 50 Hz EA. ASIC3, Nav1.7 and Nav1.8 protein levels increased significantly in both the dorsal root ganglion and in the spinal cord of FM model mice. These changes were further attenuated by 2, 15 and 50 Hz EA. CONCLUSION: Reduced nociceptive ASIC3, Nav1.7 and Nav1.8 proteins are involved in the preventive effects of EA against FM, and this series of molecules may represent targets for FM treatment. PMID- 29343478 TI - Treatment of gastrointestinal bleeding with idarucizumab in a patient receiving dabigatran. AB - PURPOSE: A case report describing use of idarucizumab for dabigatran reversal without the use of hemostatic agents in a patient who developed acute upper gastrointestinal (GI) bleeding while receiving triple antithrombotic therapy is presented. SUMMARY: A 77-year-old man with a complex cardiac history presented to the emergency room with chief complaints of black tarry stools and low blood pressures for 4 days. His past medical history included recent percutaneous coronary intervention (PCI) and drug-eluting stent (DES) placement, atrial fibrillation, hypertension, hyperlipidemia, coronary artery disease, coronary artery bypass graft surgery, stage 3 chronic kidney disease, and cholecystectomy. His triple antithrombotic therapy consisted of aspirin, clopidogrel, and dabigatran. The patient stated that his last dose of dabigatran was taken the night before. Serum dabigatran levels were not measured. Due to suspicion of acute upper GI bleeding, all antithrombotic agents were withheld. Treatment with idarucizumab, i.v. pantoprazole, and blood transfusion was ordered. An upper endoscopy was safely performed 24 hours later and revealed a minor Mallory-Weiss tear. The patient was discharged 48 hours later with prescriptions for acid suppressant and triple antithrombotic therapy; his melena had resolved before discharge. At 14-week follow-up, the patient reported that his cardiologist had deleted aspirin from his antithrombotic regimen. CONCLUSION: A patient who had recently undergone PCI and DES placement and was receiving aspirin, clopidogrel, and dabigatran for atrial fibrillation was successfully treated for acute GI bleeding with idarucizumab without the use of a hemostatic agent. PMID- 29343480 TI - Samiran Nundy: Tackling India's corruption. PMID- 29343481 TI - Should all patients be asked about their sexual orientation? PMID- 29343479 TI - Postsurgical prescriptions for opioid naive patients and association with overdose and misuse: retrospective cohort study. AB - OBJECTIVE: To quantify the effects of varying opioid prescribing patterns after surgery on dependence, overdose, or abuse in an opioid naive population. DESIGN: Retrospective cohort study. SETTING: Surgical claims from a linked medical and pharmacy administrative database of 37 651 619 commercially insured patients between 2008 and 2016. PARTICIPANTS: 1 015 116 opioid naive patients undergoing surgery. MAIN OUTCOME MEASURES: Use of oral opioids after discharge as defined by refills and total dosage and duration of use. The primary outcome was a composite of misuse identified by a diagnostic code for opioid dependence, abuse, or overdose. RESULTS: 568 612 (56.0%) patients received postoperative opioids, and a code for abuse was identified for 5906 patients (0.6%, 183 per 100 000 person years). Total duration of opioid use was the strongest predictor of misuse, with each refill and additional week of opioid use associated with an adjusted increase in the rate of misuse of 44.0% (95% confidence interval 40.8% to 47.2%, P<0.001), and 19.9% increase in hazard (18.5% to 21.4%, P<0.001), respectively. CONCLUSIONS: Each refill and week of opioid prescription is associated with a large increase in opioid misuse among opioid naive patients. The data from this study suggest that duration of the prescription rather than dosage is more strongly associated with ultimate misuse in the early postsurgical period. The analysis quantifies the association of prescribing choices on opioid misuse and identifies levers for possible impact. PMID- 29343484 TI - System to support patients with ongoing needs is "falling short on many fronts". PMID- 29343482 TI - PAR1 biased signaling is required for activated protein C in vivo benefits in sepsis and stroke. AB - Activated protein C (APC) cleaves protease-activated receptor 1 (PAR1) in vitro at R46 to initiate beneficial cell signaling; however, thrombin and APC can cleave at R41. To elucidate PAR1-dependent aspects of the pharmacologic in vivo mechanisms of APC, we generated C57BL/6 mouse strains carrying QQ41 or QQ46 point mutations in PAR1 (F2r gene). Using these strains, we determined whether or not recombinant murine signaling-selective APC mutants would reduce septic death or provide neuroprotection against ischemic stroke when mice carried PAR1-homozygous mutations that prevent cleavage at either R41 or R46. Intercrossing PAR1+/R46Q mice generated expected numbers of PAR1+/+, PAR1+/R46Q, and R46Q/R46Q offspring whereas intercrossing PAR1+/R41Q mice gave decreased R41Q/R41Q homozygotes (resembling intercrossing PAR1+/PAR1-knockout mice). QQ41-PAR1 and QQ46-PAR1 brain endothelial cells showed the predicted retention or loss of cellular responses to thrombin receptor-activating peptide, thrombin, or APC for each PAR1 mutation. In sepsis studies, exogenous APC reduced mortality from 50% to 10% in Escherichia coli-induced pneumonia for wild-type (Wt) PAR1 and QQ41-PAR1 mice (P < .01) but had no benefit for QQ46-PAR1 mice. In transient distal middle cerebral artery occlusion stroke studies, exogenous APC significantly reduced infarct size, edema, and neuronal apoptosis for Wt mice and QQ41-PAR1 mice but had no detectable benefits for mice carrying QQ46-PAR1. In functional studies of forelimb-asymmetry and foot-fault tests at 24 hours after stroke induction, signaling-selective APC was beneficial for Wt and QQ41-PAR1 mice but not QQ46 PAR1 mice. These results support the concept that APC-induced, PAR1-dependent biased signaling following R46 cleavage is central to the in vivo benefits of APC. PMID- 29343485 TI - Criminal and professional sanctions impede honesty and improvement. PMID- 29343483 TI - NR4A1 and NR4A3 restrict HSC proliferation via reciprocal regulation of C/EBPalpha and inflammatory signaling. AB - Members of the NR4A subfamily of nuclear receptors have complex, overlapping roles during hematopoietic cell development and also function as tumor suppressors of hematologic malignancies. We previously identified NR4A1 and NR4A3 (NR4A1/3) as functionally redundant suppressors of acute myeloid leukemia (AML) development. However, their role in hematopoietic stem cell (HSC) homeostasis remains to be disclosed. Using a conditional Nr4a1/Nr4a3 knockout mouse (CDKO), we show that codepletion of NR4A1/3 promotes acute changes in HSC homeostasis including loss of HSC quiescence, accumulation of oxidative stress, and DNA damage while maintaining stem cell regenerative and differentiation capacity. Molecular profiling of CDKO HSCs revealed widespread upregulation of genetic programs governing cell cycle and inflammation and an aberrant activation of the interferon and NF-kappaB signaling pathways in the absence of stimuli. Mechanistically, we demonstrate that NR4A1/3 restrict HSC proliferation in part through activation of a C/EBPalpha-driven antiproliferative network by directly binding to a hematopoietic-specific Cebpa enhancer and activating Cebpa transcription. In addition, NR4A1/3 occupy the regulatory regions of NF-kappaB regulated inflammatory cytokines, antagonizing the activation of NF-kappaB signaling. Taken together, our results reveal a novel coordinate control of HSC quiescence by NR4A1/3 through direct activation of C/EBPalpha and suppression of activation of NF-kappaB-driven proliferative inflammatory responses. PMID- 29343487 TI - Sixty seconds on . . . the Lansley diaries. PMID- 29343488 TI - Commentary: Let's talk about sex. PMID- 29343486 TI - Electronic cigarettes for smoking cessation. PMID- 29343489 TI - GMC should deal forcefully with repeatedly dishonest doctors. PMID- 29343491 TI - Mexicans head off spread of zoonotic tuberculosis. PMID- 29343492 TI - Boris Johnson is criticised for repeating claims that NHS will benefit from Brexit. PMID- 29343493 TI - CCG criticises NHS England after being ordered to cut GP funding. PMID- 29343495 TI - GMC erasure: it could have been me. PMID- 29343496 TI - Trump administration halts "evidence based" treatment database. PMID- 29343494 TI - Uncovering Genomic Regions Associated with Trypanosoma Infections in Wild Populations of the Tsetse Fly Glossina fuscipes. AB - Vector-borne diseases are responsible for > 1 million deaths every year but genomic resources for most species responsible for their transmission are limited. This is true for neglected diseases such as sleeping sickness (Human African Trypanosomiasis), a disease caused by Trypanosoma parasites vectored by several species of tseste flies within the genus Glossina We describe an integrative approach that identifies statistical associations between trypanosome infection status of Glossina fuscipes fuscipes (Gff) flies from Uganda, for which functional studies are complicated because the species cannot be easily maintained in laboratory colonies, and ~73,000 polymorphic sites distributed across the genome. Then, we identify candidate genes involved in Gff trypanosome susceptibility by taking advantage of genomic resources from a closely related species, G. morsitans morsitans (Gmm). We compiled a comprehensive transcript library from 72 published and unpublished RNAseq experiments of trypanosome infected and uninfected Gmm flies, and improved the current Gmm transcriptome assembly. This new assembly was then used to enhance the functional annotations on the Gff genome. As a consequence, we identified 56 candidate genes in the vicinity of the 18 regions associated with Trypanosoma infection status in Gff Twenty-nine of these genes were differentially expressed (DE) among parasite infected and uninfected Gmm, suggesting that their orthologs in Gff may correlate with disease transmission. These genes were involved in DNA regulation, neurophysiological functions, and immune responses. We highlight the power of integrating population and functional genomics from related species to enhance our understanding of the genetic basis of physiological traits, particularly in nonmodel organisms. PMID- 29343497 TI - Most medical practices are not parachutes: a citation analysis of practices felt by biomedical authors to be analogous to parachutes. AB - BACKGROUND: In a 2003 paper in BMJ, the authors made the tongue-in-cheek observation that there are no randomized controlled trials (RCTs) of parachutes. This paper has been widely read, cited and used to argue that RCTs are impractical or unnecessary for some medical practices. We performed a study to identify and evaluate claims that a medical practice is akin to a parachute. METHODS: Using Google Scholar, we identified all citations to the 2003 paper. We searched for claims that a specific practice was akin to a parachute. For each practice, we identified the desired outcome of the practice, and searched Google Scholar and ClinicalTrials.gov for RCTs that were conducted, ongoing, halted, planned or unpublished. RESULTS: Of 822 articles citing the original paper, 35 (4.1%) argued that a medical practice was akin to a parachute. Eighteen of the 35 (51%) concerned mortality or live birth, and 17 (49%) concerned a lesser outcome. For 22 practices (63%), we identified 1 or more RCTs: in 6 cases (27%), the trials showed a statistically significant benefit of the practice; in 5 (23%), the trials rejected the practice; in 5 (23%), the trials had mixed results; in 2 (9%), the trials were halted; and in 4 (18%), the trials were ongoing. Effect size was calculated for 5 of the 6 practices for which RCTs gave positive results, and the absolute risk reduction ranged from 11% to 30.8%, corresponding to a number needed to treat of 3-9. INTERPRETATION: Although there is widespread interest regarding the BMJ paper arguing that randomized trials are not necessary for practices of clear benefit, there are few analogies in medicine. Most parachute analogies in medicine are inappropriate, incorrect or misused. PMID- 29343498 TI - The GPR120 agonist TUG-891 promotes metabolic health by stimulating mitochondrial respiration in brown fat. AB - Brown adipose tissue (BAT) activation stimulates energy expenditure in human adults, which makes it an attractive target to combat obesity and related disorders. Recent studies demonstrated a role for G protein-coupled receptor 120 (GPR120) in BAT thermogenesis. Here, we investigated the therapeutic potential of GPR120 agonism and addressed GPR120-mediated signaling in BAT We found that activation of GPR120 by the selective agonist TUG-891 acutely increases fat oxidation and reduces body weight and fat mass in C57Bl/6J mice. These effects coincided with decreased brown adipocyte lipid content and increased nutrient uptake by BAT, confirming increased BAT activity. Consistent with these observations, GPR120 deficiency reduced expression of genes involved in nutrient handling in BAT Stimulation of brown adipocytes in vitro with TUG-891 acutely induced O2 consumption, through GPR120-dependent and GPR120-independent mechanisms. TUG-891 not only stimulated GPR120 signaling resulting in intracellular calcium release, mitochondrial depolarization, and mitochondrial fission, but also activated UCP1. Collectively, these data suggest that activation of brown adipocytes with the GPR120 agonist TUG-891 is a promising strategy to increase lipid combustion and reduce obesity. PMID- 29343499 TI - A Population Phylogenetic View of Mitochondrial Heteroplasmy. AB - The mitochondrion has recently emerged as an active player in myriad cellular processes. Additionally, it was recently shown that >200 diseases are known to be linked to variants in mitochondrial DNA or in nuclear genes interacting with mitochondria. This has reinvigorated interest in its biology and population genetics. Mitochondrial heteroplasmy, or genotypic variation of mitochondria within an individual, is now understood to be common in humans and important in human health. However, it is still not possible to make quantitative predictions about the inheritance of heteroplasmy and its proliferation within the body, partly due to the lack of an appropriate model. Here, we present a population genetic framework for modeling mitochondrial heteroplasmy as a process that occurs on an ontogenetic phylogeny, with genetic drift and mutation changing heteroplasmy frequencies during the various developmental processes represented in the phylogeny. Using this framework, we develop a Bayesian inference method for inferring rates of mitochondrial genetic drift and mutation at different stages of human life. Applying the method to previously published heteroplasmy frequency data, we demonstrate a severe effective germline bottleneck comprised of the cumulative genetic drift occurring between the divergence of germline and somatic cells in the mother, and the separation of germ layers in the offspring. Additionally, we find that the two somatic tissues we analyze here undergo tissue specific bottlenecks during embryogenesis, less severe than the effective germline bottleneck, and that these somatic tissues experience little additional genetic drift during adulthood. We conclude with a discussion of possible extensions of the ontogenetic phylogeny framework and its possible applications to other ontogenetic processes in addition to mitochondrial heteroplasmy. PMID- 29343500 TI - Cbfbeta2 controls differentiation of and confers homing capacity to prethymic progenitors. AB - Multipotent hematopoietic progenitors must acquire thymus-homing capacity to initiate T lymphocyte development. Despite its importance, the transcriptional program underlying this process remains elusive. Cbfbeta forms transcription factor complexes with Runx proteins, and here we show that Cbfbeta2, encoded by an RNA splice variant of the Cbfb gene, is essential for extrathymic differentiation of T cell progenitors. Furthermore, Cbfbeta2 endows extrathymic progenitors with thymus-homing capacity by inducing expression of the principal thymus-homing receptor, Ccr9. This occurs via direct binding of Cbfbeta2 to cell type-specific enhancers, as is observed in Rorgammat induction during differentiation of lymphoid tissue inducer cells by activation of an intronic enhancer. As in mice, an alternative splicing event in zebrafish generates a Cbfbeta2-specific mRNA, important for ccr9 expression. Thus, despite phylogenetically and ontogenetically variable sites of origin of T cell progenitors, their robust thymus-homing capacity is ensured by an evolutionarily conserved mechanism emerging from functional diversification of Runx transcription factor complexes by acquisition of a novel splice variant. PMID- 29343502 TI - Taking deterministic control of membrane protein monomer-dimer measurements. PMID- 29343501 TI - Sequential BMP7/TGF-beta1 signaling and microbiota instruct mucosal Langerhans cell differentiation. AB - Mucosal Langerhans cells (LCs) originate from pre-dendritic cells and monocytes. However, the mechanisms involved in their in situ development remain unclear. Here, we demonstrate that the differentiation of murine mucosal LCs is a two-step process. In the lamina propria, signaling via BMP7-ALK3 promotes translocation of LC precursors to the epithelium. Within the epithelium, TGF-beta1 finalizes LC differentiation, and ALK5 is crucial to this process. Moreover, the local microbiota has a major impact on the development of mucosal LCs, whereas LCs in turn maintain mucosal homeostasis and prevent tissue destruction. These results reveal the differential and sequential role of TGF-beta1 and BMP7 in LC differentiation and highlight the intimate interplay of LCs with the microbiota. PMID- 29343503 TI - In the Histone Zone: The Mighty Eraser. PMID- 29343504 TI - Canonical and Noncanonical Actions of Arabidopsis Histone Deacetylases in Ribosomal RNA Processing. AB - Ribosome biogenesis is a fundamental process required for all cellular activities. Histone deacetylases play critical roles in many biological processes including transcriptional repression and rDNA silencing. However, their function in pre-rRNA processing remains poorly understood. Here, we discovered a previously uncharacterized role of Arabidopsis thaliana histone deacetylase HD2C in pre-rRNA processing via both canonical and noncanonical manners. HD2C interacts with another histone deacetylase HD2B and forms homo- and/or hetero oligomers in the nucleolus. Depletion of HD2C and HD2B induces a ribosome biogenesis deficient phenotype and aberrant accumulation of 18S pre-rRNA intermediates. Our genome-wide analysis revealed that HD2C binds and represses the expression of key genes involved in ribosome biogenesis. Using RNA immunoprecipitation and sequencing, we further uncovered a noncanonical mechanism of HD2C directly associating with pre-rRNA and small nucleolar RNAs to regulate rRNA methylation. Together, this study reveals a multifaceted role of HD2C in ribosome biogenesis and provides mechanistic insights into how histone deacetylases modulate rRNA maturation at the transcriptional and posttranscriptional levels. PMID- 29343506 TI - How to use... Procalcitonin. AB - Diagnosing bacterial infection in the unwell or febrile child is a common challenge faced by all paediatricians. Despite the advent of novel molecular techniques, there is ongoing need for diagnostic assays with adequate performance and turnaround time to facilitate safe clinical decision-making when bacterial sepsis is suspected, such as whether to commence empirical treatment with antibiotics. Procalcitonin is an established marker of infection that has a potential role in the diagnosis and exclusion of serious or invasive bacterial infection in neonates and children. Although enthusiastically adopted in many countries and institutions, national guidance in the UK does not yet support its routine use. This article reviews the relevant literature on the use of procalcitonin measurement in common paediatric clinical scenarios. PMID- 29343505 TI - Revisiting Criteria for Plant MicroRNA Annotation in the Era of Big Data. AB - MicroRNAs (miRNAs) are ~21-nucleotide-long regulatory RNAs that arise from endonucleolytic processing of hairpin precursors. Many function as essential posttranscriptional regulators of target mRNAs and long noncoding RNAs. Alongside miRNAs, plants also produce large numbers of short interfering RNAs (siRNAs), which are distinguished from miRNAs primarily by their biogenesis (typically processed from long double-stranded RNA instead of single-stranded hairpins) and functions (typically via roles in transcriptional regulation instead of posttranscriptional regulation). Next-generation DNA sequencing methods have yielded extensive data sets of plant small RNAs, resulting in many miRNA annotations. However, it has become clear that many miRNA annotations are questionable. The sheer number of endogenous siRNAs compared with miRNAs has been a major factor in the erroneous annotation of siRNAs as miRNAs. Here, we provide updated criteria for the confident annotation of plant miRNAs, suitable for the era of "big data" from DNA sequencing. The updated criteria emphasize replication and the minimization of false positives, and they require next-generation sequencing of small RNAs. We argue that improved annotation systems are needed for miRNAs and all other classes of plant small RNAs. Finally, to illustrate the complexities of miRNA and siRNA annotation, we review the evolution and functions of miRNAs and siRNAs in plants. PMID- 29343508 TI - Circular RNA VMA21 protects against intervertebral disc degeneration through targeting miR-200c and X linked inhibitor-of-apoptosis protein. AB - OBJECTIVES: Circular RNAs (circRNAs) have been proven to function as competing endogenous RNAs to interact with microRNAs (miRNAs) and influence the expression of miRNA target mRNAs. In this study, we investigated whether circRNAs could act as competing endogenous RNAs to regulate the pathological process of intervertebral disc degeneration (IVDD). METHODS: The role and mechanism of a circRNA, circVMA21, in IVDD were explored in nucleus pulposus (NP) cells and degenerative NP tissues from patients and rat models. The interaction between circVMA21 and miR-200c as well as the target mRNA, X linked inhibitor-of apoptosis protein (XIAP), was examined. RESULTS: The decreased expression of XIAP in the inflammatory cytokines-treated NP cells and the degenerative NP tissues was directly associated with excessive apoptosis and imbalance between anabolic and catabolic factors of extracellular matrix. miR-200c regulated NP cell viability and functions through inhibiting XIAP. circVMA21 acted as a sponge of miR-200c and functioned in NP cells through targeting miR-200c and XIAP. Intradiscal injection of circVMA21 alleviated IVDD in the rat model. CONCLUSIONS: CircVMA21 could alleviate inflammatory cytokines-induced NP cell apoptosis and imbalance between anabolism and catabolism of extracellular matrix through miR 200c-XIAP pathway. It provides a potentially effective therapeutic strategy for IVDD. PMID- 29343507 TI - Early and sustained efficacy with apremilast monotherapy in biological-naive patients with psoriatic arthritis: a phase IIIB, randomised controlled trial (ACTIVE). AB - OBJECTIVE: Evaluate apremilast efficacy across various psoriatic arthritis (PsA) manifestations beginning at week 2 in biological-naive patients with PsA. METHODS: Patients were randomised (1:1) to apremilast 30 mg twice daily or placebo. At week 16, patients whose swollen and tender joint counts had not improved by >=10% were eligible for early escape. At week 24, all patients received apremilast through week 52. RESULTS: Among 219 randomised patients (apremilast: n=110; placebo: n=109), a significantly greater American College of Rheumatology 20 response at week 16 (primary outcome) was observed with apremilast versus placebo (38.2% (42/110) vs 20.2% (22/109); P=0.004); response rates at week 2 (first assessment) were 16.4% (18/110) versus 6.4% (7/109) (P=0.025). Improvements in other efficacy outcomes, including 28-joint count Disease Activity Score (DAS-28) using C reactive protein (CRP), swollen joint count, Health Assessment Questionnaire-Disability Index (HAQ-DI), enthesitis and morning stiffness severity, were observed with apremilast at week 2. At week 16, apremilast significantly reduced PsA disease activity versus placebo, with changes in DAS-28 (CRP) (P<0.0001), HAQ-DI (P=0.023) and Gladman Enthesitis Index (P=0.001). Improvements were maintained with continued treatment through week 52. Over 52 weeks, apremilast's safety profile was consistent with prior phase 3 studies in psoriasis and PsA. During weeks 0-24, the incidence of protocol defined diarrhoea was 11.0% (apremilast) and 8.3% (placebo); serious adverse event rates were 2.8% (apremilast) and 4.6% (placebo). CONCLUSIONS: In biological naive patients with PsA, onset of effect with apremilast was observed at week 2 and continued through week 52. The safety profile was consistent with previous reports. TRIAL REGISTRATION NUMBER: NCT01925768; Results. PMID- 29343511 TI - Response to: 'Remission or low disease activity as a target in systemic lupus erythematosus' by Ugarte-Gil et al. PMID- 29343510 TI - Limited radiographic progression and sustained reductions in MRI inflammation in patients with axial spondyloarthritis: 4-year imaging outcomes from the RAPID axSpA phase III randomised trial. AB - OBJECTIVES: To report 4-year imaging outcomes in the RAPID-axSpA (NCT01087762) study of patients with ankylosing spondylitis (AS) and non-radiographic axial spondyloarthritis (nr-axSpA), treated with certolizumab pegol (CZP). METHODS: This phase III, randomised trial was placebo-controlled and double-blind to week 24, dose-blind to week 48 and open-label to week 204. Patients fulfilling the Assessment of Spondyloarthritis International Society (ASAS) axSpA criteria with active disease were stratified (AS/nr-axSpA) according to the modified New York (mNY) criteria at randomisation. Spinal radiographs were assessed using the modified Stoke Ankylosing Spondylitis Spine Score (mSASSS). MRI inflammation used the Spondyloarthritis Research Consortium of Canada (SPARCC) score for sacroiliac joints (SIJ) and the Berlin spinal score (remission defined as SPARCC <2 and Berlin <=2, respectively). RESULTS: MRI improvements from baseline (BL) to week 12 were maintained to week 204 (SPARCC BL: AS=8.5, nr-axSpA=7.5; SPARCC week 204: AS=1.3, nr-axSpA=2.4; Berlin BL: AS=7.4, nr-axSpA=4.4; Berlin week 204: AS=2.6, nr-axSpA=1.9). 66.7% of patients with AS and 69.6% of patients with nr-axSpA with BL SPARCC scores >=2, and 65.4% of patients with AS and 57.3% of patients with nr axSpA with BL Berlin score >2, achieved remission at week 204. Mean mSASSS change in AS from BL to week 204 was 0.98 (95% CI 0.34, 1.63); 0.67 (95% CI 0.21,1.13) from BL to week 96; and 0.31 (95% CI 0.02,0.60) from week 96 to week 204. Corresponding nr-axSpA changes were 0.06 (95% CI -0.17,0.28), -0.01 (95% CI 0.19,0.17) and 0.07 (95% CI -0.07,0.20). 4.5% of patients with nr-axSpA fulfilled the mNY criteria at week 204, while 4.3% of patients with AS no longer did so. CONCLUSIONS: In patients with CZP-treated axSpA, rapid decreases in spinal and SIJ MRI inflammation were maintained to week 204. Overall, 4-year spinal progression was low, with less progression during years 2-4 than 0-2. Radiographic SIJ grading changes demonstrated limited progression. TRIAL REGISTRATION NUMBER: NCT01087762; Post-results. PMID- 29343509 TI - Efficacy and safety of tregalizumab in patients with rheumatoid arthritis and an inadequate response to methotrexate: results of a phase IIb, randomised, placebo controlled trial. AB - OBJECTIVE: To evaluate the efficacy, biological activity and safety of tregalizumab in patients with active rheumatoid arthritis (RA) and an inadequate response to methotrexate (MTX). METHODS: 321 patients were randomised (1:1:1:1) to placebo or tregalizumab 25, 100 or 200 mg once-weekly subcutaneously in addition to MTX treatment. Responders at week 12 continued the same treatment, and non-responders at week 12 were escalated to the next higher tregalizumab dose level or re-randomised from placebo to active treatment. After 24 weeks, patients could continue treatment with tregalizumab for 24 weeks (extension phase). The primary endpoint was the American College of Rheumatology 20% improvement criteria (ACR20) response rate at week 12. Safety and biological activity were monitored through week 48. RESULTS: At week 12, ACR20 response rates were not statistically significantly different between placebo and any of the tregalizumab doses. Tregalizumab injections were well tolerated; most adverse events were mild to moderate and comparable among treatment and placebo groups. Biological activity was shown by dose-dependent CD4 downmodulation. CONCLUSION: Treatment with tregalizumab did not show significant clinical efficacy in patients with active RA compared with placebo but resulted in the expected biological effect on CD4 modulation. Tregalizumab was generally well tolerated, and no new safety findings were identified. TRIAL REGISTRATION NUMBER: NCT01999192; Results. PMID- 29343512 TI - Response to: 'Neuropsychiatric lupus or not? Cerebral hypoperfusion by perfusion weighted MRI in normal-appearing white matter in primary neuropsychiatric lupus erythematosus' by Papadaki et al. PMID- 29343513 TI - Using genetic buffering relationships identified in fission yeast to reveal susceptibilities in cells lacking hamartin or tuberin function. AB - Tuberous sclerosis complex is an autosomal dominant disorder characterized by benign tumors arising from the abnormal activation of mTOR signaling in cells lacking TSC1 (hamartin) or TSC2 (tuberin) activity. To expand the genetic framework surrounding this group of growth regulators, we utilized the model eukaryote Schizosaccharomyces pombe to uncover and characterize genes that buffer the phenotypic effects of mutations in the orthologous tsc1 or tsc2 loci. Our study identified two genes: fft3 (encoding a DNA helicase) and ypa1 (encoding a peptidyle-prolyl cis/trans isomerase). While the deletion of fft3 or ypa1 has little effect in wild-type fission yeast cells, their loss in tsc1Delta or tsc2Delta backgrounds results in severe growth inhibition. These data suggest that the inhibition of Ypa1p or Fft3p might represent an 'Achilles' heel' of cells defective in hamartin/tuberin function. Furthermore, we demonstrate that the interaction between tsc1/tsc2 and ypa1 can be rescued through treatment with the mTOR inhibitor, torin-1, and that ypa1Delta cells are resistant to the glycolytic inhibitor, 2-deoxyglucose. This identifies ypa1 as a novel upstream regulator of mTOR and suggests that the effects of ypa1 loss, together with mTOR activation, combine to result in a cellular maladaptation in energy metabolism that is profoundly inhibitory to growth. PMID- 29343514 TI - TRPM2 channel-mediated regulation of autophagy maintains mitochondrial function and promotes gastric cancer cell survival via the JNK-signaling pathway. AB - A lack of effective treatment is one of the main factors contributing to gastric cancer-related death. Discovering effective targets and understanding their underlying anti-cancer mechanism are key to achieving the best response to treatment and to limiting side effects. Although recent studies have shown that the cation channel transient receptor potential melastatin-2 (TRPM2) is crucial for cancer cell survival, the exact mechanism remains unclear, limiting its therapeutic potential. Here, using molecular and functional assays, we investigated the role of TRPM2 in survival of gastric cancer cells. Our results indicated that TRPM2 knockdown in AGS and MKN-45 cells decreases cell proliferation and enhances apoptosis. We also observed that the TRPM2 knockdown impairs mitochondrial metabolism, indicated by a decrease in basal and maximal mitochondrial oxygen consumption rates and ATP production. These mitochondrial defects coincided with a decrease in autophagy and mitophagy, indicated by reduced levels of autophagy- and mitophagy-associated proteins (i.e. ATGs, LC3A/B II, and BNIP3). Moreover, we found that TRPM2 modulates autophagy through a c-Jun N-terminal kinase (JNK)-dependent and mechanistic target of rapamycin-independent pathway. We conclude that in the absence of TRPM2, down-regulation of the JNK signaling pathway impairs autophagy, ultimately causing the accumulation of damaged mitochondria and death of gastric cancer cells. Of note, by inhibiting cell proliferation and promoting apoptosis, the TRPM2 down-regulation enhanced the efficacy of paclitaxel and doxorubicin in gastric cancer cells. Collectively, we provide compelling evidence that TRPM2 inhibition may benefit therapeutic approaches for managing gastric cancer. PMID- 29343515 TI - Discovery of genes required for lipoteichoic acid glycosylation predicts two distinct mechanisms for wall teichoic acid glycosylation. AB - The bacterial cell wall is an important and highly complex structure that is essential for bacterial growth because it protects bacteria from cell lysis and environmental insults. A typical Gram-positive bacterial cell wall is composed of peptidoglycan and the secondary cell wall polymers, wall teichoic acid (WTA) and lipoteichoic acid (LTA). In many Gram-positive bacteria, LTA is a polyglycerol phosphate chain that is decorated with d-alanine and sugar residues. However, the function of and proteins responsible for the glycosylation of LTA are either unknown or not well-characterized. Here, using bioinformatics, genetic, and NMR spectroscopy approaches, we found that the Bacillus subtilis csbB and yfhO genes are essential for LTA glycosylation. Interestingly, the Listeria monocytogenes gene lmo1079, which encodes a YfhO homolog, was not required for LTA glycosylation, but instead was essential for WTA glycosylation. LTA is polymerized on the outside of the cell and hence can only be glycosylated extracellularly. Based on the similarity of the genes coding for YfhO homologs that are required in B. subtilis for LTA glycosylation or in L. monocytogenes for WTA glycosylation, we hypothesize that WTA glycosylation might also occur extracellularly in Listeria species. Finally, we discovered that in L. monocytogenes, lmo0626 (gtlB) was required for LTA glycosylation, indicating that the encoded protein has a function similar to that of YfhO, although the proteins are not homologous. Together, our results enable us to propose an updated model for LTA glycosylation and also indicate that glycosylation of WTA might occur through two different mechanisms in Gram-positive bacteria. PMID- 29343516 TI - Stat3-mediated alterations in lysosomal membrane protein composition. AB - Lysosome function is essential in cellular homeostasis. In addition to its recycling role, the lysosome has recently been recognized as a cellular signaling hub. We have shown in mammary epithelial cells, both in vivo and in vitro, that signal transducer and activator of transcription 3 (Stat3) modulates lysosome biogenesis and can promote the release of lysosomal proteases that culminates in cell death. To further investigate the impact of Stat3 on lysosomal function, we conducted a proteomic screen of changes in lysosomal membrane protein components induced by Stat3 using an iron nanoparticle enrichment strategy. Our results show that Stat3 activation not only elevates the levels of known membrane proteins but results in the appearance of unexpected factors, including cell surface proteins such as annexins and flotillins. These data suggest that Stat3 may coordinately regulate endocytosis, intracellular trafficking, and lysosome biogenesis to drive lysosome-mediated cell death in mammary epithelial cells. The methodologies described in this study also provide significant improvements to current techniques used for the purification and analysis of the lysosomal proteome. PMID- 29343518 TI - Fibroblast-Specific beta-Catenin Signaling Dictates the Outcome of AKI. AB - AKI is a devastating condition with high morbidity and mortality. The pathologic features of AKI are characterized by tubular injury, inflammation, and vascular impairment. Whether fibroblasts in the renal interstitium have a role in the pathogenesis of AKI is unknown. In this study, we investigated the role of fibroblast-specific beta-catenin signaling in dictating the outcome of AKI, using conditional knockout mice in which beta-catenin was specifically ablated in fibroblasts (Gli1-beta-cat-/-). After ischemia-reperfusion injury (IRI), Gli1 beta-cat-/- mice had lower serum creatinine levels and less morphologic injury than Gli1-beta-cat+/+ littermate controls. Moreover, we detected fewer apoptotic cells, as well as decreased cytochrome C release; reduced expression of Bax, FasL, and p53; and increased phosphorylation of Akt, in the Gli1-beta-cat-/- kidneys. Gli1-beta-cat-/- kidneys also exhibited upregulated expression of proliferating cell nuclear antigen and Ki-67, which are markers of cell proliferation. Furthermore, Gli1-beta-cat-/- kidneys displayed suppressed NF kappaB signaling and cytokine expression and reduced infiltration of inflammatory cells. Notably, loss of beta-catenin in fibroblasts induced renal expression of hepatocyte growth factor (HGF) and augmented the tyrosine phosphorylation of c met receptor after IRI. In vitro, treatment with Wnt ligands or ectopic expression of active beta-catenin inhibited HGF mRNA and protein expression and repressed HGF promoter activity. Collectively, these results suggest that fibroblast-specific beta-catenin signaling can control tubular injury and repair in AKI by modulating HGF expression. Our studies uncover a previously unrecognized role for interstitial fibroblasts in the pathogenesis of AKI. PMID- 29343519 TI - Uremic Solute-Aryl Hydrocarbon Receptor-Tissue Factor Axis Associates with Thrombosis after Vascular Injury in Humans. AB - Individuals with CKD are particularly predisposed to thrombosis after vascular injury. Using mouse models, we recently described indoxyl sulfate, a tryptophan metabolite retained in CKD and an activator of tissue factor (TF) through aryl hydrocarbon receptor (AHR) signaling, as an inducer of thrombosis across the CKD spectrum. However, the translation of findings from animal models to humans is often challenging. Here, we investigated the uremic solute-AHR-TF thrombosis axis in two human cohorts, using a targeted metabolomics approach to probe a set of tryptophan products and high-throughput assays to measure AHR and TF activity. Analysis of baseline serum samples was performed from 473 participants with advanced CKD from the Dialysis Access Consortium Clopidogrel Prevention of Early AV Fistula Thrombosis trial. Participants with subsequent arteriovenous thrombosis had significantly higher levels of indoxyl sulfate and kynurenine, another uremic solute, and greater activity of AHR and TF, than those without thrombosis. Pattern recognition analysis using the components of the thrombosis axis facilitated clustering of the thrombotic and nonthrombotic groups. We further validated these findings using 377 baseline samples from participants in the Thrombolysis in Myocardial Infarction II trial, many of whom had CKD stage 2 3. Mechanistic probing revealed that kynurenine enhances thrombosis after vascular injury in an animal model and regulates thrombosis in an AHR-dependent manner. This human validation of the solute-AHR-TF axis supports further studies probing its utility in risk stratification of patients with CKD and exploring its role in other diseases with heightened risk of thrombosis. PMID- 29343521 TI - T-type Ca2+ Channels: T for Targetable. AB - In the past decade, T-type Ca2+ channels (TTCC) have been unveiled as key regulators of cancer cell biology and thus have been proposed as chemotherapeutic targets. Indeed, in vitro and in vivo studies indicate that TTCC pharmacologic blockers have a negative impact on the viability of cancer cells and reduce tumor size, respectively. Consequently mibefradil, a TTCC blocker approved in 1997 as an antihypertensive agent but withdrawn in 1998 because of drug-drug interactions, was granted 10 years later the orphan drug status by the FDA to investigate its efficacy against brain, ovary, and pancreatic cancer. However, the existence of different channel isoforms with distinct physiologic roles, together with the lack of selective pharmacologic agents, has hindered a conclusive chemotherapeutic evaluation. Here, we review the available evidence on TTCC expression, value as prognostic markers, and effectiveness of their pharmacologic blockade on cancer cells in vitro and in preclinical models. We additionally summarize the status of clinical trials using mibefradil against glioblastoma multiforme. Finally, we discuss the future perspectives and the importance of further development of multidisciplinary research efforts on the consideration of TTCCs as biomarkers or targetable molecules in cancer. Cancer Res; 78(3); 603-9. (c)2018 AACR. PMID- 29343520 TI - Evidence for the ISG15-Specific Deubiquitinase USP18 as an Antineoplastic Target. AB - Ubiquitination and ubiquitin-like posttranslational modifications (PTM) regulate activity and stability of oncoproteins and tumor suppressors. This implicates PTMs as antineoplastic targets. One way to alter PTMs is to inhibit activity of deubiquitinases (DUB) that remove ubiquitin or ubiquitin-like proteins from substrate proteins. Roles of DUBs in carcinogenesis have been intensively studied, yet few inhibitors exist. Prior work provides a basis for the ubiquitin specific protease 18 (USP18) as an antineoplastic target. USP18 is the major DUB that removes IFN-stimulated gene 15 (ISG15) from conjugated proteins. Prior work discovered that engineered loss of USP18 increases ISGylation and in contrast to its gain decreases cancer growth by destabilizing growth-regulatory proteins. Loss of USP18 reduced cancer cell growth by triggering apoptosis. Genetic loss of USP18 repressed cancer formation in engineered murine lung cancer models. The translational relevance of USP18 was confirmed by finding its expression was deregulated in malignant versus normal tissues. Notably, the recent elucidation of the USP18 crystal structure offers a framework for developing an inhibitor to this DUB. This review summarizes strong evidence for USP18 as a previously unrecognized pharmacologic target in oncology. Cancer Res; 78(3); 587-92. (c)2018 AACR. PMID- 29343517 TI - Early Infant Diet and Islet Autoimmunity in the TEDDY Study. AB - OBJECTIVE: To examine duration of breastfeeding and timing of complementary foods and risk of islet autoimmunity (IA). RESEARCH DESIGN AND METHODS: The Environmental Determinants of Diabetes in the Young (TEDDY) study prospectively follows 8,676 children with increased genetic risk of type 1 diabetes (T1D) in the U.S., Finland, Germany, and Sweden. This study included 7,563 children with at least 9 months of follow-up. Blood samples were collected every 3 months from birth to evaluate IA, defined as persistent, confirmed positive antibodies to insulin (IAAs), GAD, or insulinoma antigen-2. We examined the associations between diet and the risk of IA using Cox regression models adjusted for country, T1D family history, HLA genotype, sex, and early probiotic exposure. Additionally, we investigated martingale residuals and log-rank statistics to determine cut points for ages of dietary exposures. RESULTS: Later introduction of gluten was associated with increased risk of any IA and IAA. The hazard ratios (HRs) for every 1-month delay in gluten introduction were 1.05 (95% CI 1.01, 1.10; P = 0.02) and 1.08 (95% CI 1.00, 1.16; P = 0.04), respectively. Martingale residual analysis suggested that the age at gluten introduction could be grouped as <4, 4-9, and >9 months. The risk of IA associated with introducing gluten before 4 months of age was lower (HR 0.68; 95% CI 0.47, 0.99), and the risk of IA associated with introducing it later than the age of 9 months was higher (HR 1.57; 95% CI 1.07, 2.31) than introduction between 4 and 9 months of age. CONCLUSIONS: The timing of gluten-containing cereals and IA should be studied further. PMID- 29343522 TI - Polyol Pathway Links Glucose Metabolism to the Aggressiveness of Cancer Cells. AB - Cancer cells alter their metabolism to support their malignant properties. In this study, we report that the glucose-transforming polyol pathway (PP) gene aldo keto-reductase-1-member-B1 (AKR1B1) strongly correlates with epithelial-to mesenchymal transition (EMT). This association was confirmed in samples from lung cancer patients and from an EMT-driven colon cancer mouse model with p53 deletion. In vitro, mesenchymal-like cancer cells showed increased AKR1B1 levels, and AKR1B1 knockdown was sufficient to revert EMT. An equivalent level of EMT suppression was measured by targeting the downstream enzyme sorbitol dehydrogenase (SORD), further pointing at the involvement of the PP. Comparative RNA sequencing confirmed a profound alteration of EMT in PP-deficient cells, revealing a strong repression of TGFbeta signature genes. Excess glucose was found to promote EMT through autocrine TGFbeta stimulation, while PP-deficient cells were refractory to glucose-induced EMT. These data show that PP represents a molecular link between glucose metabolism, cancer differentiation, and aggressiveness, and may serve as a novel therapeutic target.Significance: A glucose-transforming pathway in TGFbeta-driven epithelial-to-mesenchymal transition provides novel mechanistic insights into the metabolic control of cancer differentiation. Cancer Res; 78(7); 1604-18. (c)2018 AACR. PMID- 29343523 TI - A Novel l-Asparaginase with low l-Glutaminase Coactivity Is Highly Efficacious against Both T- and B-cell Acute Lymphoblastic Leukemias In Vivo. AB - Acute lymphoblastic leukemia (ALL) is the most common type of pediatric cancer, although about 4 of every 10 cases occur in adults. The enzyme drug l asparaginase serves as a cornerstone of ALL therapy and exploits the asparagine dependency of ALL cells. In addition to hydrolyzing the amino acid l-asparagine, all FDA-approved l-asparaginases also have significant l-glutaminase coactivity. Since several reports suggest that l-glutamine depletion correlates with many of the side effects of these drugs, enzyme variants with reduced l-glutaminase coactivity might be clinically beneficial if their antileukemic activity would be preserved. Here we show that novel low l-glutaminase variants developed on the backbone of the FDA-approved Erwinia chrysanthemi l-asparaginase were highly efficacious against both T- and B-cell ALL, while displaying reduced acute toxicity features. These results support the development of a new generation of safer l-asparaginases without l-glutaminase activity for the treatment of human ALL.Significance: A new l-asparaginase-based therapy is less toxic compared with FDA-approved high l-glutaminase enzymes Cancer Res; 78(6); 1549-60. (c)2018 AACR. PMID- 29343524 TI - Antitumor Properties of RAF709, a Highly Selective and Potent Inhibitor of RAF Kinase Dimers, in Tumors Driven by Mutant RAS or BRAF. AB - Resistance to the RAF inhibitor vemurafenib arises commonly in melanomas driven by the activated BRAF oncogene. Here, we report antitumor properties of RAF709, a novel ATP-competitive kinase inhibitor with high potency and selectivity against RAF kinases. RAF709 exhibited a mode of RAF inhibition distinct from RAF monomer inhibitors such as vemurafenib, showing equal activity against both RAF monomers and dimers. As a result, RAF709 inhibited MAPK signaling activity in tumor models harboring either BRAFV600 alterations or mutant N- and KRAS-driven signaling, with minimal paradoxical activation of wild-type RAF. In cell lines and murine xenograft models, RAF709 demonstrated selective antitumor activity in tumor cells harboring BRAF or RAS mutations compared with cells with wild-type BRAF and RAS genes. RAF709 demonstrated a direct pharmacokinetic/pharmacodynamic relationship in in vivo tumor models harboring KRAS mutation. Furthermore, RAF709 elicited regression of primary human tumor-derived xenograft models with BRAF, NRAS, or KRAS mutations with excellent tolerability. Our results support further development of inhibitors like RAF709, which represents a next-generation RAF inhibitor with unique biochemical and cellular properties that enables antitumor activities in RAS-mutant tumors.Significance: In an effort to develop RAF inhibitors with the appropriate pharmacological properties to treat RAS mutant tumors, RAF709, a compound with potency, selectivity, and in vivo properties, was developed that will allow preclinical therapeutic hypothesis testing, but also provide an excellent probe to further unravel the complexities of RAF kinase signaling. Cancer Res; 78(6); 1537-48. (c)2018 AACR. PMID- 29343525 TI - Lack of Remuscularization Following Transplantation of Human Embryonic Stem Cell Derived Cardiovascular Progenitor Cells in Infarcted Nonhuman Primates. AB - RATIONALE: Human pluripotent stem cell-derived cardiovascular progenitor cells (hPSC-CVPCs) should be thoroughly investigated in large animal studies before testing in clinical trials. OBJECTIVE: The main of this study is to clarify whether hPSC-CVPCs can engraft for long time in the heart of primates after myocardial infarction (MI) and compare the effectiveness and safety of immunosuppression with cyclosporine alone or multiple-drug regimen (MDR) containing cyclosporine, methylprednisolone, and basiliximab in cynomolgus monkeys that had received intramyocardial injections of 1*107 EGFP (enhanced green fluorescent protein)-expressing hPSC-CVPCs after MI. A third group of animals received the immunosuppression MDR but without cell therapy after MI (MI+MDR group). METHODS AND RESULTS: Measurements of EGFP gene levels and EGFP immunofluorescence staining indicated that the hPSC-CVPC engraftment rate was greater in the MI+MDR+CVPC group than that in the MI+cyclosporine+CVPC group. However, even in the MI+MDR+CVPC group, no transplanted cells could be detected at 140 days after transplantation. Concomitantly, immunofluorescent analysis of CD3, CD4, and CD8 expression indicated that T-lymphocyte infiltration in the CVPC transplanted hearts was less in the MDR-treated animals than in the cyclosporine alone-treated animals. The recovery of left ventricular function on day 28 post MI in the MI+MDR+CVPC group was better than that in the MI+MDR group. Apoptotic cardiac cells were also less common in the MI+MDR+CVPC group than in the MI+MDR group, although both immunosuppression regimens were associated with transient hepatic dysfunction. CONCLUSIONS: This is the largest study of hPSCs in nonhuman primates in cardiovascular field to date (n=32). Compared with cyclosporine alone, MDR attenuates immune rejection and improves survival of hPSC-CVPCs in primates; this is associated with less apoptosis of native cardiac cells and better recovery of left ventricular function at 28 days. However, even with MDR, transplanted hPSC-CVPCs do not engraft and do not survive at 140 days after transplantation, thereby excluding remuscularization as a mechanism for the functional effect. PMID- 29343527 TI - Visual outcomes after chemotherapy for optic pathway glioma in children with and without neurofibromatosis type 1: results of the International Society of Paediatric Oncology (SIOP) Low-Grade Glioma 2004 trial UK cohort. AB - AIMS: To report visual acuity (VA) outcomes following chemotherapy for optic pathway glioma (OPG) in children with or without neurofibromatosis type-1 (NF1) and to analyse associated risk factors. METHODS: A prospective, multicentre, cohort study involving 155 children treated between September 2004 and December 2012. Initial and final VA was used for per-eye and per-subject analysis. Correlation tests were performed to determine whether initial VA predicted final VA. Logistic regression was used to determine whether age and tumour location were associated risk factors. RESULTS: 90 children had complete ophthalmological data. At initiation of chemotherapy, 26% and 49% of eyes with NF1-OPG and sporadic OPG, respectively, had VA of >=0.7 log of the minimum angle of resolution (logMAR). At final visit, per eye, 49% had <=0.2, 23% had 0.30-0.60 and 28% had VA>=0.70 logMAR in the NF1-OPG group. In the sporadic OPG group, per eye, 32% had <=0.2, 11% had VA 0.30-0.60 and 57% had >=0.70 logMAR. Children with sporadic OPG, per eye, were significantly less likely to have VA outcomes <=0.60 logMAR compared with children with NF1-OPG (OR=0.30; 95% CI 0.16 to 0.56; P<0.0001). Per subject, VA improved in 24%, remained stable in 35% and worsened in 41% of children with NF1-OPG and improved in 18%, remained stable in 43% and worsened in 39% of children with sporadic OPG. CONCLUSIONS: Children with and without NF1 demonstrated the same rate of VA improvement, stabilisation or worsening; however, children with sporadic OPG had a poorer VA outcome. Better initial VA, older age, absence of postchiasm tumour and presence of NF1 were associated with improved or stable VA outcomes. PMID- 29343526 TI - Mutations in CYB561 Causing a Novel Orthostatic Hypotension Syndrome. AB - RATIONALE: Orthostatic hypotension is a common clinical problem, but the underlying mechanisms have not been fully delineated. OBJECTIVE: We describe 2 families, with 4 patients in total, experiencing severe life-threatening orthostatic hypotension because of a novel cause. METHODS AND RESULTS: As in dopamine beta-hydroxylase deficiency, concentrations of norepinephrine and epinephrine in the patients were low. Plasma dopamine beta-hydroxylase activity, however, was normal, and the DBH gene had no mutations. Molecular genetic analysis was performed to determine the underlying genetic cause. Homozygosity mapping and exome and Sanger sequencing revealed pathogenic homozygous mutations in the gene encoding cytochrome b561 (CYB561); a missense variant c.262G>A, p.Gly88Arg in exon 3 in the Dutch family and a nonsense mutation (c.131G>A, p.Trp44*) in exon 2 in the American family. Expression of CYB561 was investigated using RNA from different human adult and fetal tissues, transcription of RNA into cDNA, and real-time quantitative polymerase chain reaction. The CYB561 gene was found to be expressed in many human tissues, in particular the brain. The CYB561 protein defect leads to a shortage of ascorbate inside the catecholamine secretory vesicles leading to a functional dopamine beta-hydroxylase deficiency. The concentration of the catecholamines and downstream metabolites was measured in brain and adrenal tissue of 6 CYB561 knockout mice (reporter-tagged deletion allele [post-Cre], genetic background C57BL/6NTac). The concentration of norepinephrine and normetanephrine was decreased in whole-brain homogenates of the CYB561(-/-) mice compared with wild-type mice (P<0.01), and the concentration of normetanephrine and metanephrine was decreased in adrenal glands (P<0.01), recapitulating the clinical phenotype. The patients responded favorably to treatment with l-dihydroxyphenylserine, which can be converted directly to norepinephrine. CONCLUSIONS: This study is the first to implicate cytochrome b561 in disease by showing that pathogenic mutations in CYB561 cause an as yet unknown disease in neurotransmitter metabolism causing orthostatic hypotension. PMID- 29343528 TI - Effect of intravitreal triamcinolone acetonide injection at the end of vitrectomy for vitreous haemorrhage related to proliferative diabetic retinopathy. AB - BACKGROUND/AIMS: To investigate whether intravitreal injection of triamcinolone acetonide (IVTA) combined with vitrectomy prevents postoperative inflammation in patients with vitreous haemorrhage (VH) due to proliferative diabetic retinopathy (PDR). METHODS: This prospective, multicentre, randomised study conducted at seven sites in Japan enrolled patients diagnosed as having VH following PDR. Patients underwent vitrectomy with (IVTA+VIT group) or without (VIT group) IVTA at the end of the surgery. Anterior flare intensity (AFI), central retinal thickness (CRT), best-corrected visual acuity (BCVA) and intraocular pressure (IOP) were measured before and at 3 days, 1 week, 1, 3 and 6 months after surgery and compared. RESULTS: Number of patients who completed 6 months of follow-up was 40 and 41 in VIT group and IVTA+VIT group, respectively. AFI was significantly higher in the VIT group than in the IVTA+VIT group at 3 days (P=0.033), 1 week (P=0.019) and 1 month (P=0.037). There were no significant differences in CRT, BCVA and IOP between the groups through the observational periods. In the cases with macular oedema >350 um of CRT at 3 days, CRT was significantly lower in the IVTA+VIT group than in the VIT group at 1 month (P=0.041). CONCLUSIONS: IVTA combined with vitrectomy and cataract surgery contributed to inhibit the postoperative inflammation in patients with VH due to PDR. The effect of IVTA in the reduction of diabetic macular oedema may be limited to the early stage after surgery. TRIAL REGISTRATION NUMBER: UMIN000020376, Post-results. PMID- 29343529 TI - Quarter-Descemet membrane endothelial keratoplasty (Quarter-DMEK) for Fuchs endothelial corneal dystrophy: 6 months clinical outcome. AB - BACKGROUND/AIM: To assess the clinical outcome of the first series of Quarter Descemet membrane endothelial keratoplasty (Quarter-DMEK), a potential hybrid technique between 'descemetorhexis only' and conventional, circular DMEK. METHODS: Prospective interventional case series at a tertiary referral centre. Twelve eyes of 12 patients with central Fuchs endothelial corneal dystrophy underwent Quarter-DMEK, that is, transplantation of one quadrant of a full diameter DMEK graft, and were evaluated for best-corrected visual acuity (BCVA), endothelial cell density (ECD) and complications up to 6 months postoperatively. RESULTS: At 6 months postoperatively, all eyes reached a BCVA of >=20/40 (>=0.5), 11/12 (92%) of >=20/25 (>=0.8) and 6/12 (50%) of >=20/20 (>=1.0). Mean central ECD decreased from 2867 (+/-161) cells/mm2 before to 1255 (+/-514) cells/mm2 at 1 month, 1058 (+/-455) cells/mm2 at 3 months and 968 (+/-427) cells/mm2 at 6 months after surgery. Rebubbling was performed in 4/12 eyes (33%) within the first two months. CONCLUSIONS: Quarter-DMEK may be a feasible procedure that allows for visual outcomes similar to conventional, circular DMEK. The relatively large drop in ECD within the first month may have resulted from more extensive endothelial cell migration and/or measurement error (at the graft edges). If longer-term outcomes would resemble those of conventional DMEK, Quarter-DMEK may potentially quadruple the availability of endothelial grafts. PMID- 29343530 TI - Peripapillary vascular changes in radiation optic neuropathy: an optical coherence tomography angiography grading. AB - AIMS: To investigate peripapillary vascular changes secondary to radiation optic neuropathy (RON) using optical coherence tomography angiography (OCT-A) and to propose a clinical grading of RON based on OCT-A findings. METHODS: Thirty-four patients affected by RON were consecutively included. Each patient underwent best corrected visual acuity measurement (ETDRS score) and OCT-A (Nidek RS-3000 Advance device, Nidek, Gamagori, Japan). The radial peripapillary capillary plexus (RPCP) and the entire peripapillary capillary bed (EPCB) were analysed. Quantitative analysis of the OCT-A images was performed using open-source available ImageJ software (National Institutes of Health, Bethesda, Maryland, USA). Qualitative analysis based on the proposed clinical grading (Grades 0-4) was also performed by two masked graders. RESULTS: RON clinical (qualitative) classification based on RPCP correlated with the quantitative RPCP perfusion analysis (P=0.0001). RON clinical classification based on RPCP statistically correlated with ETDRS score (P=0.001). RON clinical classification based on EPCB also correlated with the quantitative EPCB perfusion analysis and ETDRS score (P=0.02 and P=0.01, respectively). Compared with the clinical classification based on EPCB, the qualitative classification based on RPCP reached a higher intergrader agreement (0.96 and 0.86, respectively). CONCLUSION: OCT-A can be used to detect RPCP abnormalities and to clinically classify RON with a high interexaminer agreement. The proposed clinical classification is supported by the quantitative analysis based on the use of specific images elaboration techniques and correlates with visual acuity of the examined eyes. PMID- 29343531 TI - Comparison of immunoblotting (IgA and IgG) and the Goldmann-Witmer coefficient for diagnosis of ocular toxoplasmosis in immunocompetent patients. AB - BACKGROUND: Ocular toxoplasmosis (OT) is a common cause of posterior uveitis worldwide. The diagnosis of OT is based on clinical findings, but in most cases, laboratory tests are required to confirm the aetiology, especially when other diseases are suspected. The aim of this study was to evaluate which methods, between the Goldmann-Witmer coefficient (GWC) and immunoblotting (IB) with both IgG and IgA, in aqueous humour (AH) samples, can be the most sensitive to diagnose OT, in current practice, especially in the first three weeks. METHODS: Retrospectively reviewed records of 87 consecutive patients who had underwent AH and serum sample, 42 patients with suspected OT and 45 patients with suspected other ocular inflammatory diseases. All samples were analysed by both GWC and IB. RESULTS: The GWC was significant in 47.6% of patients presenting with suspected OT. The intraocular production of specific antibody anti-Toxoplasma gondii IgG and IgA was revealed by IB in 71.4% of samples. The combination of these two methods increased the sensitivity to 76.2%. Based on the interval between symptom onset and paracentesis, IB had a greater sensitivity than GWC when sample of AH was taken in the first three weeks (64.7% vs 23.5%, P=0.039), while the difference between the sensitivity of IB and GWC was less important in cases with an interval >3 weeks (76% vs 64% P=0.625). CONCLUSION: IB seems to be more useful than the GWC if only one of these methods can be performed, especially during the first three weeks after symptom onset. PMID- 29343532 TI - Clinical Laboratory Practice Recommendations for the Use of Cardiac Troponin in Acute Coronary Syndrome: Expert Opinion from the Academy of the American Association for Clinical Chemistry and the Task Force on Clinical Applications of Cardiac Bio-Markers of the International Federation of Clinical Chemistry and Laboratory Medicine. AB - This document is an essential companion to the third iteration of the National Academy of Clinical Biochemistry [NACB,8 now the American Association for Clinical Chemistry (AACC) Academy] Laboratory Medicine Practice Guidelines (LMPG) on cardiac markers. The expert consensus recommendations were drafted in collaboration with the International Federation of Clinical Chemistry and Laboratory Medicine Task Force on Clinical Applications of Bio-Markers (IFCC TF CB). We determined that there is sufficient clinical guidance on the use of cardiac troponin (cTn) testing from clinical practice groups. Thus, in this expert consensus document, we focused on clinical laboratory practice recommendations for high-sensitivity (hs)-cTn assays. This document utilized the expert opinion class of evidence to focus on the following 10 topics: (a) quality control (QC) utilization, (b) validation of the lower reportable analytical limits, (c) units to be used in reporting measurable concentrations for patients and QC materials, (d) 99th percentile sex-specific upper reference limits to define the reference interval; (e) criteria required to define hs-cTn assays, (f) communication with clinicians and the laboratory's role in educating clinicians regarding the influence of preanalytic and analytic problems that can confound assay results, (g) studies on hs-cTn assays and how authors need to document preanalytical and analytical variables, (h) harmonizing and standardizing assay results and the role of commutable materials, (i) time to reporting of results from sample receipt and sample collection, and (j) changes in hs-cTn concentrations over time and the role of both analytical and biological variabilities in interpreting results of serial blood collections. PMID- 29343533 TI - How Clinical Laboratories May Improve Their Performance: The "High-Sensitivity" Troponin Paradigm. PMID- 29343534 TI - Effect of Acute Coronary Syndrome Probability on Diagnostic and Prognostic Performance of High-Sensitivity Cardiac Troponin. AB - BACKGROUND: There is concern that high-sensitivity cardiac troponin (hs-cTn) may have low diagnostic accuracy in patients with low acute coronary syndrome (ACS) probability. METHODS: We prospectively stratified patients presenting with acute chest discomfort to the emergency department (ED) into 3 groups according to their probability for ACS as assessed by the treating ED physician using a visual analog scale: <=10%, 11% to 79%, and >=80%, reviewing all information available at 90 min. hs-cTnT and hs-cTnI concentrations were determined in a blinded fashion. Two independent cardiologists adjudicated the final diagnosis. RESULTS: Among 3828 patients eligible for analysis, 1189 patients had low (<=10%) probability for ACS. The incidence of non-ST-segment elevation myocardial infarction (NSTEMI) increased from 1.3% to 12.2% and 54.8% in patients with low, intermediate, and high ACS probability, respectively. The positive predictive value of hs-cTnT and hs-cTnI was low in patients with low ACS probability and increased with the incidence of NSTEMI, whereas the diagnostic accuracy of hs cTnT and hs-cTnI for NSTEMI as quantified by the area under the curve (AUC) was very high and comparable among all 3 strata, e.g., AUC hs-cTnI, 0.96 (95% CI, 0.94-0.97); 0.87 (95% CI, 0.85-0.89); and 0.89 (95% CI, 0.87-0.92), respectively. Findings were validated using bootstrap analysis as an alternative methodology to define ACS probability. Similarly, higher hs-cTnT/I concentrations independently predicted all-cause mortality within 2 years (e.g., hs-cTnT hazard ratio, 1.39; 95% CI, 1.27-1.52), irrespective of ACS probability. CONCLUSIONS: Diagnostic and prognostic accuracy and utility of hs-cTnT and hs-cTnI remain high in patients with acute chest discomfort and low ACS probability.ClinicalTrials.gov Identifier: NCT00470587. PMID- 29343535 TI - Debates in Pain Management Testing. PMID- 29343536 TI - Current and Emerging Multianalyte Assays with Algorithmic Analyses-Are Laboratories Ready for Clinical Adoption? PMID- 29343537 TI - A search for ceramide binding proteins using bifunctional lipid analogs yields CERT-related protein StarD7. AB - Ceramides are central intermediates of sphingolipid metabolism with dual roles as mediators of cellular stress signaling and mitochondrial apoptosis. How ceramides exert their cytotoxic effects is unclear and their poor solubility in water hampers a search for specific protein interaction partners. Here, we report the application of a photoactivatable and clickable ceramide analog, pacCer, to identify ceramide binding proteins and unravel the structural basis by which these proteins recognize ceramide. Besides capturing ceramide transfer protein (CERT) from a complex proteome, our approach yielded CERT-related steroidogenic acute regulatory protein D7 (StarD7) as novel ceramide binding protein. Previous work revealed that StarD7 is required for efficient mitochondrial import of phosphatidylcholine (PC) and serves a critical role in mitochondrial function and morphology. Combining site-directed mutagenesis and photoaffinity labeling experiments, we demonstrate that the steroidogenic acute regulatory transfer domain of StarD7 harbors a common binding site for PC and ceramide. While StarD7 lacks robust ceramide transfer activity in vitro, we find that its ability to shuttle PC between model membranes is specifically affected by ceramides. Besides demonstrating the suitability of pacCer as a tool to hunt for ceramide binding proteins, our data point at StarD7 as a candidate effector protein by which ceramides may exert part of their mitochondria-mediated cytotoxic effects. PMID- 29343538 TI - Impact of dietary omega3 polyunsaturated fatty acid supplementation on brown and brite adipocyte function. AB - The recent characterization of functional brown adipose tissue in adult humans has opened new perspectives for regulation of energy expenditure with respect to obesity and diabetes. Furthermore, dietary recommendations have taken into account the insufficient dietary intake of omega3 PUFAs and the concomitant excessive intake of omega6 PUFA associated with the occurrence of overweight/obesity. We aimed to study whether omega3 PUFAs could play a role in the recruitment and function of energy-dissipating brown/brite adipocytes. We show that omega3 PUFA supplementation has a beneficial effect on the thermogenic function of adipocytes. In vivo, a low dietary omega6:omega3 ratio improved the thermogenic response of brown and white adipose tissues to beta3-adrenergic stimulation. This effect was recapitulated in vitro by PUFA treatment of hMADS adipocytes. We pinpointed the omega6-derived eicosanoid prostaglandin (PG)F2alpha as the molecular origin because the effects were mimicked with a specific PGF2alpha receptor agonist. PGF2alpha level in hMADS adipocytes was reduced in response to omega3 PUFA supplementation. The recruitment of thermogenic adipocytes is influenced by the local quantity of individual oxylipins, which is controlled by the omega6:omega3 ratio of available lipids. In human nutrition, energy homeostasis may thus benefit from the implementation of a more balanced dietary omega6:omega3 ratio. PMID- 29343539 TI - Buruli Ulcer: Review of a Neglected Skin Mycobacterial Disease. AB - Buruli ulcer is caused by Mycobacterium ulcerans This neglected disease occurs in scattered foci around the world, with a higher concentration of cases in West Africa. The mycobacteria produce mycolactones that cause tissue necrosis. The disease presents as a painless skin nodule that ulcerates as necrosis expands. Finding acid-fast bacilli in smears or histopathology, culturing the mycobacteria, and performing M. ulcerans PCR in presumptive cases confirm the diagnosis. Medical treatment with oral rifampin and intramuscular streptomycin or oral treatment with rifampin plus clarithromycin for 8 weeks is supported by the World Health Organization. This review summarizes the epidemiology, pathogenesis, clinical presentation, diagnostic tests, and advances in treatment. PMID- 29343540 TI - Point-Counterpoint: Meningitis/Encephalitis Syndromic Testing in the Clinical Laboratory. AB - INTRODUCTIONSyndromic panels were first FDA cleared for detection of respiratory pathogens in 2008. Since then, other panels have been approved by the FDA, and most recently, the FilmArray meningitis/encephalitis panel (BioFire, Salt Lake City, UT) has become available. This assay detects 14 targets within 1 h and includes pathogens that typically cause different manifestations of infection, although they infect the same organ system. Several studies have reported both false-positive and false-negative results with this test, and all agree that the cost is significant. As with other panels, health care systems have adopted different strategies for offering this assay. Some have implemented strategies to limit the use of the test to certain patient populations, others have elected not to offer the test, and others have elected not to offer the test and instead request that providers order specific PCRs for the pathogens that best fit the patient's symptoms. In this Point-Counterpoint, Jennifer Dien Bard of the Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, and of the Keck School of Medicine at the University of Southern California explains why laboratories should offer these assays without restriction. Kevin Alby of the University of Pennsylvania explains the concerns about the use of these assays as first-line tests and why some limitations on their use might be appropriate. PMID- 29343541 TI - Immune Monitoring of Infectious Complications in Transplant Patients: an Important Step towards Improved Clinical Management. AB - Immune reconstitution following organ transplantation is absolutely critical in preventing infectious complications. However, understanding the kinetics of immune reconstitution and its potential impact on the clinical management of transplant patients remains a significant challenge. Over the last decade, various platform technologies have emerged which have provided important insights into the immune reconstitution kinetics in transplant patients. However, many of these technologies are too complicated and cumbersome to implement in a clinical setting. In this issue of the Journal of Clinical Microbiology, Chiereghin et al. (J. Clin. Microbiol. 56:e01040-17, 2018, https://doi.org/10.1128/JCM.01040-17) report the results of their evaluation of the QuantiFERON-CMV (QFN-CMV) assay to assess human cytomegalovirus (CMV)-specific CD8+ T-cell immunity in heart transplant recipients as a prognostic tool. These studies showed that patients with absence of global immune reactivity in the QFN-CMV assay were at a higher risk of developing CMV after discontinuing antiviral prophylaxis. Furthermore, failure to reconstitute CMV-specific immunity after resolution of the first episode of viremia was associated with viral relapse. These observations, along with other recent clinical studies utilizing the QFN-CMV assay, demonstrate that systematic monitoring of antiviral immunity can be successfully used as a prognostic tool and also to guide changes to the clinical management of transplant patients. PMID- 29343542 TI - Clinical Validation of SensiTest Colistin, a Broth Microdilution-Based Method To Evaluate Colistin MICs. AB - The global spread of multidrug-resistant Gram-negative bacteria has led to the return of colistin for treating severe infections. Recently, different plasmid mediated genes conferring resistance to this drug were described and reported worldwide. International committees (EUCAST/CLSI) reevaluated inconsistencies surrounding colistin antimicrobial susceptibility testing (AST), concluding that broth microdilution (BMD) should serve as the reference method for AST. The development of an accurate, reproducible commercial test based on BMD is therefore highly desirable. SensiTest Colistin (STC), a BMD-based compact 4-test panel containing the lyophilized antibiotic in 7 2-fold dilutions (0.25 to 16 MUg/ml) was here compared with the EUCAST-CLSI standard reference method (BMD) and, for some isolates, with the automated Phoenix 100 system (PHX). A total of 353 bacterial strains were evaluated by two different laboratories; 137 isolates were resistant to colistin (19 were intrinsically resistant, 83 harbored the mcr 1 gene). Essential agreement (EA) between STC and BMD was obtained for 339 out of the 353 strains tested (96.0%). Overall categorical agreement was obtained for 349 out of the 353 strains analyzed (98.9%). Two major errors (MEs; 0.93%) and two very major errors (VMEs; 1.46%) were documented. STC appeared to be a simple but highly reliable test with good reproducibility even with panels stored at room temperature or at 35 degrees C. Moreover, STC showed a good performance with strains carrying the mcr-1 gene, with a 98.8% EA. As the secondary endpoint of our study, VMEs for PHX were documented for 6 isolates (10%). PMID- 29343543 TI - An Autoimmune Disease-Associated Risk Variant in the TNFAIP3 Gene Plays a Protective Role in Brucellosis That Is Mediated by the NF-kappaB Signaling Pathway. AB - Naturally occurring functional variants (rs148314165 and rs200820567, collectively referred to as TT>A) reduce the expression of the tumor necrosis factor alpha-induced protein 3 (TNFAIP3) gene, a negative regulator of NF-kappaB signaling, and predispose individuals to autoimmune disease. In this analysis, we conducted a genetic association study of the TT>A variants in 1,209 controls and 150 patients with brucellosis, an infectious disease, and further assessed the role of the variants in brucellosis. Our data demonstrated that the TT>A variants were correlated with cases of brucellosis (P = 0.002; odds ratio [OR] = 0.34) and with individuals who had a positive serum agglutination test (SAT) result (titer of >1/160) (P = 4.2 * 10-6; OR = 0.23). A functional study demonstrated that brucellosis patients carrying the protective allele (A) showed significantly lower expression levels of the TNFAIP3 gene in their peripheral blood mononuclear cells and showed increased NF-kappaB signaling. Monocytes from individuals carrying the A allele that were stimulated with Brucella abortus had lower mRNA levels of TNFAIP3 and produced more interleukin-10 (IL-10), IL-6, and IL-1beta than those from TT allele carriers. These data showed that autoimmune disease associated risk variants, TT>A, of the TNFAIP3 locus play a protective role in the pathogenesis of brucellosis. Our findings suggest that a disruption of the normal function of the TNFAIP3 gene might serve as a therapeutic target for the treatment of brucellosis. PMID- 29343544 TI - How to navigate counter dogmatic research findings. PMID- 29343545 TI - Tolloid cleavage activates latent GDF8 by priming the pro-complex for dissociation. AB - Growth differentiation factor 8 (GDF8)/myostatin is a latent TGF-beta family member that potently inhibits skeletal muscle growth. Here, we compared the conformation and dynamics of precursor, latent, and Tolloid-cleaved GDF8 pro complexes to understand structural mechanisms underlying latency and activation of GDF8. Negative stain electron microscopy (EM) of precursor and latent pro complexes reveals a V-shaped conformation that is unaltered by furin cleavage and sharply contrasts with the ring-like, cross-armed conformation of latent TGF beta1. Surprisingly, Tolloid-cleaved GDF8 does not immediately dissociate, but in EM exhibits structural heterogeneity consistent with partial dissociation. Hydrogen-deuterium exchange was not affected by furin cleavage. In contrast, Tolloid cleavage, in the absence of prodomain-growth factor dissociation, increased exchange in regions that correspond in pro-TGF-beta1 to the alpha1 helix, latency lasso, and beta1-strand in the prodomain and to the beta6'- and beta7'-strands in the growth factor. Thus, these regions are important in maintaining GDF8 latency. Our results show that Tolloid cleavage activates latent GDF8 by destabilizing specific prodomain-growth factor interfaces and primes the growth factor for release from the prodomain. PMID- 29343546 TI - p62 filaments capture and present ubiquitinated cargos for autophagy. AB - The removal of misfolded, ubiquitinated proteins is an essential part of the protein quality control. The ubiquitin-proteasome system (UPS) and autophagy are two interconnected pathways that mediate the degradation of such proteins. During autophagy, ubiquitinated proteins are clustered in a p62-dependent manner and are subsequently engulfed by autophagosomes. However, the nature of the protein substrates targeted for autophagy is unclear. Here, we developed a reconstituted system using purified components and show that p62 and ubiquitinated proteins spontaneously coalesce into larger clusters. Efficient cluster formation requires substrates modified with at least two ubiquitin chains longer than three moieties and is based on p62 filaments cross-linked by the substrates. The reaction is inhibited by free ubiquitin, K48-, and K63-linked ubiquitin chains, as well as by the autophagosomal marker LC3B, suggesting a tight cross talk with general proteostasis and autophagosome formation. Our study provides mechanistic insights on how substrates are channeled into autophagy. PMID- 29343547 TI - Molecular Pathways for Immune Recognition of Preproinsulin Signal Peptide in Type 1 Diabetes. AB - The signal peptide region of preproinsulin (PPI) contains epitopes targeted by HLA-A-restricted (HLA-A0201, A2402) cytotoxic T cells as part of the pathogenesis of beta-cell destruction in type 1 diabetes. We extended the discovery of the PPI epitope to disease-associated HLA-B*1801 and HLA-B*3906 (risk) and HLA-A*1101 and HLA-B*3801 (protective) alleles, revealing that four of six alleles present epitopes derived from the signal peptide region. During cotranslational translocation of PPI, its signal peptide is cleaved and retained within the endoplasmic reticulum (ER) membrane, implying it is processed for immune recognition outside of the canonical proteasome-directed pathway. Using in vitro translocation assays with specific inhibitors and gene knockout in PPI-expressing target cells, we show that PPI signal peptide antigen processing requires signal peptide peptidase (SPP). The intramembrane protease SPP generates cytoplasm proximal epitopes, which are transporter associated with antigen processing (TAP), ER-luminal epitopes, which are TAP independent, each presented by different HLA class I molecules and N-terminal trimmed by ER aminopeptidase 1 for optimal presentation. In vivo, TAP expression is significantly upregulated and correlated with HLA class I hyperexpression in insulin-containing islets of patients with type 1 diabetes. Thus, PPI signal peptide epitopes are processed by SPP and loaded for HLA-guided immune recognition via pathways that are enhanced during disease pathogenesis. PMID- 29343548 TI - Loss of B-Cell Anergy in Type 1 Diabetes Is Associated With High-Risk HLA and Non HLA Disease Susceptibility Alleles. AB - Although B cells reactive with islet autoantigens are silenced by tolerance mechanisms in healthy individuals, they can become activated and contribute to the development of type 1 diabetes. We previously demonstrated that high-affinity insulin-binding B cells (IBCs) occur exclusively in the anergic (BND) compartment in peripheral blood of healthy subjects. Consistent with their activation early in disease development, high-affinity IBCs are absent from the BND compartment of some first-degree relatives (FDRs) as well as all patients with autoantibody positive prediabetes and new-onset type 1 diabetes, a time when they are found in pancreatic islets. Loss of BND IBCs is associated with a loss of the entire BND B cell compartment consistent with provocation by an environmental trigger or predisposing genetic factors. To investigate potential mechanisms operative in subversion of B-cell tolerance, we explored associations between HLA and non-HLA type 1 diabetes-associated risk allele genotypes and loss of BNDs in FDRs. We found that high-risk HLA alleles and a subset of non-HLA risk alleles (i.e., PTPN2 [rs1893217], INS [rs689], and IKZF3 [rs2872507]), relevant to B- and T-cell development and function are associated with loss of anergy. Hence, the results suggest a role for risk-conferring alleles in perturbation of B-cell anergy during development of type 1 diabetes. PMID- 29343549 TI - Intracellular vesicle trafficking plays an essential role in mitochondrial quality control. AB - The Drosophila gene products Bet1, Slh and CG10144, predicted to function in intracellular vesicle trafficking, were previously found to be essential for mitochondrial nucleoid maintenance. Here we show that Slh and Bet1 co-operate to maintain mitochondrial functions. In their absence, mitochondrial content, membrane potential and respiration became abnormal, accompanied by mitochondrial proteotoxic stress, but without direct effects on mtDNA. Immunocytochemistry showed that both Slh and Bet1 are localized at the Golgi, together with a proportion of Rab5-positive vesicles. Some Bet1, as well as a tiny amount of Slh, co-fractionated with highly purified mitochondria, whilst live-cell imaging showed coincidence of fluorescently tagged Bet1 with most Lysotracker-positive and a small proportion of Mitotracker-positive structures. This 3-way association was disrupted in cells knocked down for Slh, although co-localized lysosomal and mitochondrial signals were still seen. Neither Slh nor Bet1 were required for global mitophagy or endocytosis, but prolonged Slh knockdown resulted in G2 growth arrest, with increased cell diameter. These effects were shared with knockdown of betaCOP but not of CG1044, Snap24 or Syntaxin6. Our findings implicate vesicle sorting at the cis-Golgi in mitochondrial quality control. PMID- 29343550 TI - Cdk1-dependent phosphoinhibition of a formin-F-BAR interaction opposes cytokinetic contractile ring formation. AB - In Schizosaccharomyces pombe, cytokinesis requires the assembly and constriction of an actomyosin-based contractile ring (CR). A single essential formin, Cdc12, localizes to the cell middle upon mitotic onset and nucleates the F-actin of the CR. Cdc12 medial recruitment is mediated in part by its direct binding to the F BAR scaffold Cdc15. Given that Cdc12 is hyperphosphorylated in M phase, we explored whether Cdc12 phosphoregulation impacts its association with Cdc15 during mitosis. We found that Cdk1, a major mitotic kinase, phosphorylates Cdc12 on six N-terminal residues near the Cdc15-binding site, and phosphorylation on these sites inhibits its interaction with the Cdc15 F-BAR domain. Consistent with this finding, a cdc12 mutant with all six Cdk1 sites changed to phosphomimetic residues (cdc12-6D) displays phenotypes similar to cdc12-P31A, in which the Cdc15 binding motif is disrupted; both show reduced Cdc12 at the CR and delayed CR formation. Together, these results indicate that Cdk1 phosphorylation of formin Cdc12 antagonizes its interaction with Cdc15 and thereby opposes Cdc12's CR localization. These results are consistent with a general role for Cdk1 in inhibiting cytokinesis until chromosome segregation is complete. PMID- 29343551 TI - Two subunits of the exocyst, Sec3p and Exo70p, can function exclusively on the plasma membrane. AB - The exocyst is an octameric complex that tethers secretory vesicles to the plasma membrane in preparation for fusion. We anchored each subunit with a transmembrane (TM) domain at its N- or C-terminus. Only N-terminally anchored TM-Sec3p and C terminally anchored Exo70p-TM proved functional. These findings orient the complex with respect to the membrane and establish that Sec3p and Exo70p can function exclusively on the membrane. The functions of TM-Sec3p and Exo70p-TM were largely unaffected by blocks in endocytic recycling, suggesting that they act on the plasma membrane rather than on secretory vesicles. Cytosolic pools of the other exocyst subunits were unaffected in TM-sec3 cells, while they were partially depleted in exo70-TM cells. Blocking actin-dependent delivery of secretory vesicles in act1-3 cells results in loss of Sec3p from the purified complex. Our results are consistent with a model in which Sec3p and Exo70p can function exclusively on the plasma membrane while the other subunits are brought to them on secretory vesicles. PMID- 29343552 TI - Constitutive centromere-associated network contacts confer differential stability on CENP-A nucleosomes in vitro and in the cell. AB - Eukaryotic centromeres are defined by the presence of nucleosomes containing the histone H3 variant, centromere protein A (CENP-A). Once incorporated at centromeres, CENP-A nucleosomes are remarkably stable, exhibiting no detectable loss or exchange over many cell cycles. It is currently unclear whether this stability is an intrinsic property of CENP-A containing chromatin or whether it arises from proteins that specifically associate with CENP-A chromatin. Two proteins, CENP-C and CENP-N, are known to bind CENP-A human nucleosomes directly. Here we test the hypothesis that CENP-C or CENP-N stabilize CENP-A nucleosomes in vitro and in living cells. We show that CENP-N stabilizes CENP-A nucleosomes alone and additively with CENP-C in vitro. However, removal of CENP-C and CENP-N from cells, or mutating CENP-A so that it no longer interacts with CENP-C or CENP N, had no effect on centromeric CENP-A stability in vivo. Thus, the stability of CENP-A nucleosomes in chromatin does not arise solely from its interactions with CENP-C or CENP-N. PMID- 29343553 TI - Molecular Mechanisms of Biased and Probe-Dependent Signaling at CXC-Motif Chemokine Receptor CXCR3 Induced by Negative Allosteric Modulators. AB - Our recent explorations of allosteric modulators with improved properties resulted in the identification of two biased negative allosteric modulators, BD103 (N-1-{[3-(4-ethoxyphenyl)-4-oxo-3,4-dihydropyrido[2,3-d]pyrimi din2yl]ethyl}-4-(4-fluorobutoxy)-N-[(1-methylpiperidin-4-yl)methyl}]butanamide) and BD064 (5-[(N-{1-[3-(4-ethoxyphenyl)-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidin-2 yl]ethyl-2-[4-fluoro-3-(trifluoromethyl)phenyl]acetamido)methyl]-2 fluorophenyl}boronic acid), that exhibited probe-dependent inhibition of CXC motif chemokine receptor CXCR3 signaling. With the intention to elucidate the structural mechanisms underlying their selectivity and probe dependence, we used site-directed mutagenesis combined with homology modeling and docking to identify amino acids of CXCR3 that contribute to modulator binding, signaling, and transmission of cooperativity. With the use of allosteric radioligand RAMX3 ([3H]N-{1-[3-(4-ethoxyphenyl)-4-oxo-3,4-dihydropyrido[2,3-d]pyrimidin-2-yl]ethyl} 2-[4-fluoro-3-(trifluoromethyl)phenyl]-N-[(1-methylpiperidin-4 yl)methyl]acetamide), we identified that F1313.32 and Y3087.43 contribute specifically to the binding pocket of BD064, whereas D1864.60 solely participates in the stabilization of binding conformation of BD103. The influence of mutations on the ability of negative allosteric modulators to inhibit chemokine-mediated activation (CXCL11 and CXCL10) was assessed with the bioluminescence resonance energy transfer-based cAMP and beta-arrestin recruitment assay. Obtained data revealed complex molecular mechanisms governing biased and probe-dependent signaling at CXCR3. In particular, F1313.32, S3047.39, and Y3087.43 emerged as key residues for the compounds to modulate the chemokine response. Notably, D1864.60, W2686.48, and S3047.39 turned out to play a role in signal pathway selectivity of CXCL10, as mutations of these residues led to a G protein-active but beta-arrestin-inactive conformation. These diverse effects of mutations suggest the existence of ligand- and pathway-specific receptor conformations and give new insights in the sophisticated signaling machinery between allosteric ligands, chemokines, and their receptors, which can provide a powerful platform for the development of new allosteric drugs with improved pharmacological properties. PMID- 29343555 TI - Antagonism of Integrin CD11b Affords Protection against Endotoxin Shock and Polymicrobial Sepsis via Attenuation of HMGB1 Nucleocytoplasmic Translocation and Extracellular Release. AB - High mobility group box 1 (HMGB1), a chromatin-binding nuclear protein, plays a critical role in sepsis by acting as a key "late-phase" inflammatory mediator. Integrin CD11b is essential for inflammatory cell activation and migration, thus mediating inflammatory responses. However, it is unclear whether CD11b participates in the development of sepsis. In this study, we report that CD11b contributes to LPS-induced endotoxin shock and microbial sepsis, as antagonism of CD11b with the CD11b blocking Ab or CD11b inhibitor Gu-4 protects mice against LPS- and microbial sepsis-related lethality, which is associated with significantly diminished serum HMGB1 levels. Consistent with this, CD11b deficient mice were more resistant to microbial sepsis with a much lower serum HMGB1 level compared with wild-type mice. Pharmacological blockage and genetic knockdown/knockout of CD11b in murine macrophages hampered LPS-stimulated HMGB1 nucleocytoplasmic translocation and extracellular release. Furthermore, silencing CD11b interrupted the interaction of HMGB1 with either a nuclear export factor chromosome region maintenance 1 or classical protein kinase C and inhibited classical protein kinase C-induced HMGB1 phosphorylation, the potential underlying mechanism(s) responsible for CD11b blockage-induced suppression of HMGB1 nucleocytoplasmic translocation and subsequent extracellular release. Thus, our results highlight that CD11b contributes to the development of sepsis, predominantly by facilitating nucleocytoplasmic translocation and active release of HMGB1. PMID- 29343554 TI - Biased Generation and In Situ Activation of Lung Tissue-Resident Memory CD4 T Cells in the Pathogenesis of Allergic Asthma. AB - Asthma is a chronic inflammatory disease mediated by allergen-specific CD4 T cells that promote lung inflammation through recruitment of cellular effectors into the lung. A subset of lung T cells can persist as tissue-resident memory T cells (TRMs) following infection and allergen induction, although the generation and role of TRM in asthma persistence and pathogenesis remain unclear. In this study, we used a mouse model of chronic exposure to intranasal house dust mite (HDM) extract to dissect how lung TRMs are generated and function in the persistence and pathogenesis of allergic airway disease. We demonstrate that both CD4+ and CD8+ T cells infiltrate into the lung tissue during acute HDM exposure; however, only CD4+ TRMs, and not CD8+ TRMs, persist long term following cessation of HDM administration. Lung CD4+ TRMs are localized around airways and are rapidly reactivated upon allergen re-exposure accompanied by the rapid induction of airway hyperresponsiveness independent of circulating T cells. Lung CD4+ TRM activation to HDM challenge is also accompanied by increased recruitment and activation of dendritic cells in the lungs. Our results indicate that lung CD4+ TRMs can perpetuate allergen-specific sensitization and direct early inflammatory signals that promote rapid lung pathology, suggesting that targeting lung CD4+ TRMs could have therapeutic benefit in alleviating recurrent asthma episodes. PMID- 29343556 TI - RASA1/NF1-Mutant Lung Cancer: Racing to the Clinic? AB - Although mutation of NF1 has been described in non-small cell lung cancer (NSCLC), co-mutation with RASA1, another Ras-GTPase activating protein (RasGAP), defines a novel genetically defined subclass of NSCLC. RASA1/NF1-mutant cell lines are highly sensitive to MEK inhibitors, warranting clinical evaluation of MAPK inhibition in this subclass of patients. Clin Cancer Res; 24(6); 1243-5. (c)2018 AACRSee related article by Hayashi et al., p. 1436. PMID- 29343558 TI - Postcranial diversity and recent ecomorphic impoverishment of North American gray wolves. AB - Recent advances in genomics and palaeontology have begun to unravel the complex evolutionary history of the gray wolf, Canis lupus Still, much of their phenotypic variation across time and space remains to be documented. We examined the limb morphology of the fossil and modern North American gray wolves from the late Quaternary ( 0.95) with experimental data within the range of (thermal and radiation) doses tested (0-40 CEM43, 0-5 Gy). The proposed framework offers flexibility for modelling multimodality treatment combinations in different scenarios. It may therefore provide an important step towards the modelling of personalized therapies using a virtual patient tumour. PMID- 29343633 TI - Hydrogel biomaterials and their therapeutic potential for muscle injuries and muscular dystrophies. AB - Muscular diseases such as muscular dystrophies and muscle injuries constitute a large group of ailments that manifest as muscle weakness, atrophy or fibrosis. Although cell therapy is a promising treatment option, the delivery and retention of cells in the muscle is difficult and prevents sustained regeneration needed for adequate functional improvements. Various types of biomaterials with different physical and chemical properties have been developed to improve the delivery of cells and/or growth factors for treating muscle injuries. Hydrogels are a family of materials with distinct advantages for use as cell delivery systems in muscle injuries and ailments, including their mild processing conditions, their similarities to natural tissue extracellular matrix, and their ability to be delivered with less invasive approaches. Moreover, hydrogels can be made to completely degrade in the body, leaving behind their biological payload in a process that can enhance the therapeutic process. For these reasons, hydrogels have shown great potential as cell delivery matrices. This paper reviews a few of the hydrogel systems currently being applied together with cell therapy and/or growth factor delivery to promote the therapeutic repair of muscle injuries and muscle wasting diseases such as muscular dystrophies. PMID- 29343636 TI - Non-cell autonomous control of precerebellar neuron migration by Slit and Robo proteins. AB - During development, precerebellar neurons migrate tangentially from the dorsal hindbrain to the floor plate. Their axons cross it but their cell bodies stop their ventral migration upon reaching the midline. It has previously been shown that Slit chemorepellents and their receptors, Robo1 and Robo2, might control the migration of precerebellar neurons in a repulsive manner. Here, we have used a conditional knockout strategy in mice to test this hypothesis. We show that the targeted inactivation of the expression of Robo1 and Robo2 receptors in precerebellar neurons does not perturb their migration and that they still stop at the midline. The selective ablation of the expression of all three Slit proteins in floor-plate cells has no effect on pontine neurons and only induces the migration of a small subset of inferior olivary neurons across the floor plate. Likewise, we show that the expression of Slit proteins in the facial nucleus is dispensable for pontine neuron migration. Together, these results show that Robo1 and Robo2 receptors act non-cell autonomously in migrating precerebellar neurons and that floor-plate signals, other than Slit proteins, must exist to prevent midline crossing. PMID- 29343638 TI - Commissural neurons transgress the CNS/PNS boundary in absence of ventricular zone-derived netrin 1. AB - During the development of the central nervous system (CNS), only motor axons project into peripheral nerves. Little is known about the cellular and molecular mechanisms that control the development of a boundary at the CNS surface and prevent CNS neuron emigration from the neural tube. It has previously been shown that a subset of spinal cord commissural axons abnormally invades sensory nerves in Ntn1 hypomorphic embryos and Dcc knockouts. However, whether netrin 1 also plays a similar role in the brain is unknown. In the hindbrain, precerebellar neurons migrate tangentially under the pial surface, and their ventral migration is guided by netrin 1. Here, we show that pontine neurons and inferior olivary neurons, two types of precerebellar neurons, are not confined to the CNS in Ntn1 and Dcc mutant mice, but that they invade the trigeminal, auditory and vagus nerves. Using a Ntn1 conditional knockout, we show that netrin 1, which is released at the pial surface by ventricular zone progenitors is responsible for the CNS confinement of precerebellar neurons. We propose, that netrin 1 distribution sculpts the CNS boundary by keeping CNS neurons in netrin 1-rich domains. PMID- 29343639 TI - Neural migration: re-evaluating Slit and Robo. PMID- 29343637 TI - Tyrosine phosphorylation and proteolytic cleavage of Notch are required for non canonical Notch/Abl signaling in Drosophila axon guidance. AB - Notch signaling is required for the development and physiology of nearly every tissue in metazoans. Much of Notch signaling is mediated by transcriptional regulation of downstream target genes, but Notch controls axon patterning in Drosophila by local modulation of Abl tyrosine kinase signaling, via direct interactions with the Abl co-factors Disabled and Trio. Here, we show that Notch Abl axonal signaling requires both of the proteolytic cleavage events that initiate canonical Notch signaling. We further show that some Notch protein is tyrosine phosphorylated in Drosophila, that this form of the protein is selectively associated with Disabled and Trio, and that relevant tyrosines are essential for Notch-dependent axon patterning but not for canonical Notch dependent regulation of cell fate. Based on these data, we propose a model for the molecular mechanism by which Notch controls Abl signaling in Drosophila axons. PMID- 29343640 TI - Single-cell transcriptomics of the developing lateral geniculate nucleus reveals insights into circuit assembly and refinement. AB - Coordinated changes in gene expression underlie the early patterning and cell type specification of the central nervous system. However, much less is known about how such changes contribute to later stages of circuit assembly and refinement. In this study, we employ single-cell RNA sequencing to develop a detailed, whole-transcriptome resource of gene expression across four time points in the developing dorsal lateral geniculate nucleus (LGN), a visual structure in the brain that undergoes a well-characterized program of postnatal circuit development. This approach identifies markers defining the major LGN cell types, including excitatory relay neurons, oligodendrocytes, astrocytes, microglia, and endothelial cells. Most cell types exhibit significant transcriptional changes across development, dynamically expressing genes involved in distinct processes including retinotopic mapping, synaptogenesis, myelination, and synaptic refinement. Our data suggest that genes associated with synapse and circuit development are expressed in a larger proportion of nonneuronal cell types than previously appreciated. Furthermore, we used this single-cell expression atlas to identify the Prkcd-Cre mouse line as a tool for selective manipulation of relay neurons during a late stage of sensory-driven synaptic refinement. This transcriptomic resource provides a cellular map of gene expression across several cell types of the LGN, and offers insight into the molecular mechanisms of circuit development in the postnatal brain. PMID- 29343641 TI - Degradation of FBXO31 by APC/C is regulated by AKT- and ATM-mediated phosphorylation. AB - The F-box protein FBXO31 is a tumor suppressor that is encoded in 16q24.3, for which there is loss of heterozygosity in various solid tumors. FBXO31 serves as the substrate-recognition component of the SKP/Cullin/F-box protein class of E3 ubiquitin ligases and has been shown to direct degradation of pivotal cell-cycle regulatory proteins including cyclin D1 and the p53 antagonist MDM2. FBXO31 levels are normally low but increase substantially following genotoxic stress through a mechanism that remains to be determined. Here we show that the low levels of FBXO31 are maintained through proteasomal degradation by anaphase promoting complex/cyclosome (APC/C). We find that the APC/C coactivators CDH1 and CDC20 bind to a destruction-box (D-box) motif present in FBXO31 to promote its polyubiquitination and degradation in a cell-cycle-regulated manner, which requires phosphorylation of FBXO31 on serine-33 by the prosurvival kinase AKT. Following genotoxic stress, phosphorylation of FBXO31 on serine-278 by another kinase, the DNA damage kinase ATM, results in disruption of its interaction with CDH1 and CDC20, thereby preventing FBXO31 degradation. Collectively, our results reveal how alterations in FBXO31 phosphorylation, mediated by AKT and ATM, underlie physiological regulation of FBXO31 levels in unstressed and genotoxically stressed cells. PMID- 29343642 TI - Mechanogenetics for the remote and noninvasive control of cancer immunotherapy. AB - While cell-based immunotherapy, especially chimeric antigen receptor (CAR) expressing T cells, is becoming a paradigm-shifting therapeutic approach for cancer treatment, there is a lack of general methods to remotely and noninvasively regulate genetics in live mammalian cells and animals for cancer immunotherapy within confined local tissue space. To address this limitation, we have identified a mechanically sensitive Piezo1 ion channel (mechanosensor) that is activatable by ultrasound stimulation and integrated it with engineered genetic circuits (genetic transducer) in live HEK293T cells to convert the ultrasound-activated Piezo1 into transcriptional activities. We have further engineered the Jurkat T-cell line and primary T cells (peripheral blood mononuclear cells) to remotely sense the ultrasound wave and transduce it into transcriptional activation for the CAR expression to recognize and eradicate target tumor cells. This approach is modular and can be extended for remote controlled activation of different cell types with high spatiotemporal precision for therapeutic applications. PMID- 29343643 TI - Pyridoxal-5'-phosphate as an oxygenase cofactor: Discovery of a carboxamide forming, alpha-amino acid monooxygenase-decarboxylase. AB - Capuramycins are antimycobacterial antibiotics that consist of a modified nucleoside named uridine-5'-carboxamide (CarU). Previous biochemical studies have revealed that CarU is derived from UMP, which is first converted to uridine-5' aldehyde in a reaction catalyzed by the dioxygenase CapA and subsequently to 5'-C glycyluridine (GlyU), an unusual beta-hydroxy-alpha-amino acid, in a reaction catalyzed by the pyridoxal-5'-phosphate (PLP)-dependent transaldolase CapH. The remaining steps that are necessary to furnish CarU include decarboxylation, O atom insertion, and oxidation. We demonstrate that Cap15, which has sequence similarity to proteins annotated as bacterial, PLP-dependent l-seryl-tRNA(Sec) selenium transferases, is the sole catalyst responsible for complete conversion of GlyU to CarU. Using a complementary panel of in vitro assays, Cap15 is shown to be dependent upon substrates O2 and (5'S,6'R)-GlyU, the latter of which was unexpected given that (5'S,6'S)-GlyU is the isomeric product of the transaldolase CapH. The two products of Cap15 are identified as the carboxamide-containing CarU and CO2 While known enzymes that catalyze this type of chemistry, namely alpha amino acid 2-monooxygenase, utilize flavin adenine dinucleotide as the redox cofactor, Cap15 remarkably requires only PLP. Furthermore, Cap15 does not produce hydrogen peroxide and is shown to directly incorporate a single O atom from O2 into the product CarU and thus is an authentic PLP-dependent monooxygenase. In addition to these unusual discoveries, Cap15 activity is revealed to be dependent upon the inclusion of phosphate. The biochemical characteristics along with initiatory mechanistic studies of Cap15 are reported, which has allowed us to assign Cap15 as a PLP-dependent (5'S,6'R)-GlyU:O2 monooxygenase-decarboxylase. PMID- 29343644 TI - Identification of genes required for Mycobacterium abscessus growth in vivo with a prominent role of the ESX-4 locus. AB - Mycobacterium abscessus, a rapidly growing mycobacterium (RGM) and an opportunistic human pathogen, is responsible for a wide spectrum of clinical manifestations ranging from pulmonary to skin and soft tissue infections. This intracellular organism can resist the bactericidal defense mechanisms of amoebae and macrophages, an ability that has not been observed in other RGM. M. abscessus can up-regulate several virulence factors during transient infection of amoebae, thereby becoming more virulent in subsequent respiratory infections in mice. Here, we sought to identify the M. abscessus genes required for replication within amoebae. To this end, we constructed and screened a transposon (Tn) insertion library of an M. abscessus subspecies massiliense clinical isolate for attenuated clones. This approach identified five genes within the ESX-4 locus, which in M. abscessus encodes an ESX-4 type VII secretion system that exceptionally also includes the ESX conserved EccE component. To confirm the screening results and to get further insight into the contribution of ESX-4 to M. abscessus growth and survival in amoebae and macrophages, we generated a deletion mutant of eccB4 that encodes a core structural element of ESX-4. This mutant was less efficient at blocking phagosomal acidification than its parental strain. Importantly, and in contrast to the wild-type strain, it also failed to damage phagosomes and showed reduced signs of phagosome-to-cytosol contact, as demonstrated by a combination of cellular and immunological assays. This study attributes an unexpected and genuine biological role to the underexplored mycobacterial ESX-4 system and its substrates. PMID- 29343645 TI - Crystal structure of the mammalian lipopolysaccharide detoxifier. AB - LPS is a potent bacterial endotoxin that triggers the innate immune system. Proper recognition of LPS by pattern-recognition receptors requires a full complement of typically six acyl chains in the lipid portion. Acyloxyacyl hydrolase (AOAH) is a host enzyme that removes secondary (acyloxyacyl-linked) fatty acids from LPS, rendering it immunologically inert. This activity is critical for recovery from immune tolerance that follows Gram-negative infection. To understand the molecular mechanism of AOAH function, we determined its crystal structure and its complex with LPS. The substrate's lipid moiety is accommodated in a large hydrophobic pocket formed by the saposin and catalytic domains with a secondary acyl chain inserted into a narrow lateral hydrophobic tunnel at the active site. The enzyme establishes dispensable contacts with the phosphate groups of LPS but does not interact with its oligosaccharide portion. Proteolytic processing allows movement of an amphipathic helix possibly involved in substrate access at membranes. PMID- 29343646 TI - Role of boundary conditions in determining cell alignment in response to stretch. AB - The ability of cells to orient in response to mechanical stimuli is essential to embryonic development, cell migration, mechanotransduction, and other critical physiologic functions in a range of organs. Endothelial cells, fibroblasts, mesenchymal stem cells, and osteoblasts all orient perpendicular to an applied cyclic stretch when plated on stretchable elastic substrates, suggesting a common underlying mechanism. However, many of these same cells orient parallel to stretch in vivo and in 3D culture, and a compelling explanation for the different orientation responses in 2D and 3D has remained elusive. Here, we conducted a series of experiments designed specifically to test the hypothesis that differences in strains transverse to the primary loading direction give rise to the different alignment patterns observed in 2D and 3D cyclic stretch experiments ("strain avoidance"). We found that, in static or low-frequency stretch conditions, cell alignment in fibroblast-populated collagen gels correlated with the presence or absence of a restraining boundary condition rather than with compaction strains. Cyclic stretch could induce perpendicular alignment in 3D culture but only at frequencies an order of magnitude greater than reported to induce perpendicular alignment in 2D. We modified a published model of stress fiber dynamics and were able to reproduce our experimental findings across all conditions tested as well as published data from 2D cyclic stretch experiments. These experimental and model results suggest an explanation for the apparently contradictory alignment responses of cells subjected to cyclic stretch on 2D membranes and in 3D gels. PMID- 29343647 TI - On the folding of a structurally complex protein to its metastable active state. AB - For successful protease inhibition, the reactive center loop (RCL) of the two domain serine protease inhibitor, alpha1-antitrypsin (alpha1-AT), needs to remain exposed in a metastable active conformation. The alpha1-AT RCL is sequestered in a beta-sheet in the stable latent conformation. Thus, to be functional, alpha1-AT must always fold to a metastable conformation while avoiding folding to a stable conformation. We explore the structural basis of this choice using folding simulations of coarse-grained structure-based models of the two alpha1-AT conformations. Our simulations capture the key features of folding experiments performed on both conformations. The simulations also show that the free energy barrier to fold to the latent conformation is much larger than the barrier to fold to the active conformation. An entropically stabilized on-pathway intermediate lowers the barrier for folding to the active conformation. In this intermediate, the RCL is in an exposed configuration, and only one of the two alpha1-AT domains is folded. In contrast, early conversion of the RCL into a beta strand increases the coupling between the two alpha1-AT domains in the transition state and creates a larger barrier for folding to the latent conformation. Thus, unlike what happens in several proteins, where separate regions promote folding and function, the structure of the RCL, formed early during folding, determines both the conformational and the functional fate of alpha1-AT. Further, the short 12-residue RCL modulates the free energy barrier and the folding cooperativity of the large 370-residue alpha1-AT. Finally, we suggest experiments to test the predicted folding mechanism for the latent state. PMID- 29343649 TI - Topological transformations of Hopf solitons in chiral ferromagnets and liquid crystals. AB - Liquid crystals are widely known for their facile responses to external fields, which forms a basis of the modern information display technology. However, switching of molecular alignment field configurations typically involves topologically trivial structures, although singular line and point defects often appear as short-lived transient states. Here, we demonstrate electric and magnetic switching of nonsingular solitonic structures in chiral nematic and ferromagnetic liquid crystals. These topological soliton structures are characterized by Hopf indices, integers corresponding to the numbers of times that closed-loop-like spatial regions (dubbed "preimages") of two different single orientations of rod-like molecules or magnetization are linked with each other. We show that both dielectric and ferromagnetic response of the studied material systems allow for stabilizing a host of topological solitons with different Hopf indices. The field transformations during such switching are continuous when Hopf indices remain unchanged, even when involving transformations of preimages, but discontinuous otherwise. PMID- 29343650 TI - Decoder calibration with ultra small current sample set for intracortical brain machine interface. AB - OBJECTIVE: Intracortical brain-machine interfaces (iBMIs) aim to restore efficient communication and movement ability for paralyzed patients. However, frequent recalibration is required for consistency and reliability, and every recalibration will require relatively large most current sample set. The aim in this study is to develop an effective decoder calibration method that can achieve good performance while minimizing recalibration time. APPROACH: Two rhesus macaques implanted with intracortical microelectrode arrays were trained separately on movement and sensory paradigm. Neural signals were recorded to decode reaching positions or grasping postures. A novel principal component analysis-based domain adaptation (PDA) method was proposed to recalibrate the decoder with only ultra small current sample set by taking advantage of large historical data, and the decoding performance was compared with other three calibration methods for evaluation. MAIN RESULTS: The PDA method closed the gap between historical and current data effectively, and made it possible to take advantage of large historical data for decoder recalibration in current data decoding. Using only ultra small current sample set (five trials of each category), the decoder calibrated using the PDA method could achieve much better and more robust performance in all sessions than using other three calibration methods in both monkeys. SIGNIFICANCE: (1) By this study, transfer learning theory was brought into iBMIs decoder calibration for the first time. (2) Different from most transfer learning studies, the target data in this study were ultra small sample set and were transferred to the source data. (3) By taking advantage of historical data, the PDA method was demonstrated to be effective in reducing recalibration time for both movement paradigm and sensory paradigm, indicating a viable generalization. By reducing the demand for large current training data, this new method may facilitate the application of intracortical brain-machine interfaces in clinical practice. PMID- 29343648 TI - PAR1 agonists stimulate APC-like endothelial cytoprotection and confer resistance to thromboinflammatory injury. AB - Stimulation of protease-activated receptor 1 (PAR1) on endothelium by activated protein C (APC) is protective in several animal models of disease, and APC has been used clinically in severe sepsis and wound healing. Clinical use of APC, however, is limited by its immunogenicity and its anticoagulant activity. We show that a class of small molecules termed "parmodulins" that act at the cytosolic face of PAR1 stimulates APC-like cytoprotective signaling in endothelium. Parmodulins block thrombin generation in response to inflammatory mediators and inhibit platelet accumulation on endothelium cultured under flow. Evaluation of the antithrombotic mechanism showed that parmodulins induce cytoprotective signaling through Gbetagamma, activating a PI3K/Akt pathway and eliciting a genetic program that includes suppression of NF-kappaB-mediated transcriptional activation and up-regulation of select cytoprotective transcripts. STC1 is among the up-regulated transcripts, and knockdown of stanniocalin-1 blocks the protective effects of both parmodulins and APC. Induction of this signaling pathway in vivo protects against thromboinflammatory injury in blood vessels. Small-molecule activation of endothelial cytoprotection through PAR1 represents an approach for treatment of thromboinflammatory disease and provides proof-of principle for the strategy of targeting the cytoplasmic surface of GPCRs to achieve pathway selective signaling. PMID- 29343651 TI - Determining patient selection tool and response predictor for outpatient 30 mCi radioiodine ablation dose in non-metastatic differentiated thyroid carcinoma: a Japanese perspective. AB - The lack of isolation ward throughout Japan has long been limiting the 131I radioactive iodine (RAI) ablation for differentiated thyroid cancer (DTC) cases. The 30 mCi RAI ablation was only recently permitted for outpatient basis. However, no patient selection tool nor response predictor has been proposed. This study evaluated factors to find response predictor and determinant for the suitable patients. The retrospective study reviewed 47 eligible non-metastatic papillary DTC patients whose had first 30 mCi RAI ablation after total thyroidectomy. Age, gender, clinical stage, risk category, and pre-ablation serum thyroglobulin (Tg) level were among covariates analyzed to determine the patient selection factors; while the thyroid bed uptake on initial whole body scan (WBS) was later also included in determining RAI ablation response. Thirteen (28%) patients had a low risk (T1-2) while 23 (49%) and 11 (23%) had an intermediate (T3) or high risk (T4), respectively. Twenty-five patients were responders, and 22 were non-responders. All factors were similar between responders and non responders except pre-ablation serum Tg level (p < 0.001). In multivariate analysis, pre-ablation serum Tg level was the only significant factor for both patient selection (odd ratio (OR) = 1.52, 95% confidence interval (CI) = 1.13 2.06) and response predictor (OR = 1.48; 95% CI = 1.12-1.95). With the cut-off of 5.4 ng/mL, pre-ablation serum Tg level predicts RAI ablation response with 92% specificity and 73% sensitivity. Pre-ablation serum Tg level may help patient selection and predict the response to outpatient 30 mCi RAI ablation among post total thyroidectomy non-metastatic DTC patients. PMID- 29343652 TI - Painless Thyroiditis and Fulminant Type 1 Diabetes Mellitus in a Patient Treated with an Immune Checkpoint Inhibitor, Nivolumab. AB - The programmed cell death-1 (PD-1) pathway is a novel therapeutic target in immune checkpoint therapy for cancer. Nivolumab, an anti-PD-1 monoclonal antibody, blocks PD-1 and can restore anti-cancer immune responses by disrupting the signal that inhibits T-cell activation. Nivolumab may induce endocrine related adverse events, including hypophysitis, autoimmune thyroiditis, and type 1 diabetes mellitus. Here we report a 68-year-old female patient with advanced renal cell carcinoma who was treated with nivolumab. She had positive anti thyroglobulin antibodies and anti-thyroid peroxidase antibodies with slightly elevated thyroid-stimulating hormone (9.048 MUU/mL), and was diagnosed as chronic thyroiditis with subclinical hypothyroidism before nivolumab therapy. She developed painless thyroiditis after the first cycle of the therapy (Day 14). At the 7th cycle of nivolumab therapy (Day 98), hyperglycemia (473 mg/dL) was noted, whereas glycated hemoglobin level was 6.9%. Islet-related autoantibodies were all negative. The glucagon tolerance test showed complete depletion of insulin. Human leukocyte antigen typing showed haplotype DRB1*09:01-DQB1*03:03, which was reported to be closely associated with type 1 diabetes mellitus in Japan. Fulminant type 1 diabetes mellitus was diagnosed, and she was immediately treated with multiple daily injections of insulin. Fulminant type 1 diabetes mellitus is characterized by rapid-onset diabetic ketoacidosis, and negative islet-related autoantibodies, and was proposed as a novel subtype of non-autoimmune diabetes. Preceding painless thyroiditis with positive thyroid autoantibodies observed in the present case, however, raises the possibility that autoimmune mechanisms are involved in the pathogenesis of nivolumab-induced fulminant type 1 diabetes mellitus. PMID- 29343653 TI - Establishment of a Screening System to Identify Novel GATA-2 Transcriptional Regulators. AB - Hematopoietic stem cells can self-renew and differentiate into all blood cell types. The transcription factor GATA-2 is expressed in hematopoietic stem and progenitor cells and is essential for cell proliferation and differentiation. Heterozygous germline GATA2 mutations induce GATA-2 deficiency syndrome, characterized by monocytopenia, a predisposition to myelodysplasia and acute myeloid leukemia, and a profoundly reduced dendritic cell (DC) population, which is associated with increased susceptibility to viral infections. Because patients with GATA-2 deficiency syndrome could retain a wild-type copy of GATA-2, boosting residual wild-type GATA-2 activity may represent a novel therapeutic strategy for the disease. Here, we sought to establish a screening system to identify GATA-2 activators using human U937 monocytic cells as a potential model of the DC progenitor. Enforced GATA-2 expression in U937 cells induces CD205 expression, a marker of DC differentiation, indicating U937 cells as a surrogate of human primary DC progenitors. Transient luciferase reporter assays in U937 cells reveals a high promoter activity of the -0.5 kb GATA-2 hematopoietic-specific promoter (1S promoter) fused with two tandemly connected GATA-2 +9.9 kb intronic enhancers. We thus established U937-derived cell lines stably expressing tandem +9.9 kb/-0.5 kb 1S-luciferase. Importantly, forced GATA-1 expression, a repressor for GATA-2 expression, in the stable clones caused significant decreases in the luciferase activities. In conclusion, our system represents a potential tool for identifying novel regulators of GATA-2, thereby contributing to the development of novel therapeutic approaches. PMID- 29343654 TI - Intestinal Epithelial Cell-specific Deletion of alpha-Mannosidase II Ameliorates Experimental Colitis. AB - Inflammatory bowel disease (IBD) is a refractory disease of the gastrointestinal tract that is believed to develop in genetically susceptible individuals. Glycosylation, a type of post-translational modification, is involved in the development of a wide range of diseases, including IBD, by modulating the function of various glycoproteins. To identify novel genes contributing to the development of IBD, we analyzed single nucleotide polymorphisms (SNPs) of glycosylation-related genes in IBD patients and identified MAN2A1, encoding alpha mannosidase II (alpha-MII), as a candidate gene. alpha-MII plays a crucial, but not exclusive, role in the maturation of N-glycans. We also observed that intestinal epithelial cells (IECs), which establish the first-line barrier and regulate gut immunity, selectively expressed alpha-MII with minimal expression of its isozyme, alpha-mannosidase IIx (alpha-MIIx). This led us to hypothesize that IEC-intrinsic alpha-MII is implicated in the pathogenesis of IBD. To test this hypothesis, we generated IEC-specific alpha-MII-deficient (alpha-MIIDeltaIEC) mice. Although alpha-MII deficiency has been shown to have a minimal effect on N glycan maturation in most cell types due to the compensation by alpha-MIIx, ablation of alpha-MII impaired the maturation of N-glycans in IECs. alpha MIIDeltaIEC mice were less susceptible to dextran sulfate sodium-induced colitis compared with control littermates. In accordance with this, neutrophil infiltration in the colonic mucosa was attenuated in alpha-MIIDeltaIEC mice. Furthermore, gene expression levels of neutrophil-attracting chemokines were downregulated in the colonic tissue. These results suggest that IEC-intrinsic alpha-MII promotes intestinal inflammation by facilitating chemokine expression. We propose SNPs in MAN2A1 as a novel genetic factor for IBD.Key words: inflammatory bowel disease, alpha-mannosidase II, intestinal epithelial cell, N glycosylation. PMID- 29343655 TI - Spatiotemporal alterations of autophagy marker LC3 in rat skin fibroblasts during wound healing process. AB - To investigate the possible implications of autophagy, one of the degradation pathways induced by metabolic stress, in the dynamic reconstructive process of wound healing, the appearance and changes of punctate structures for microtubule associated protein 1 light chain 3 (LC3), an autophagosome marker, were examined in a rat skin wound healing model. Although the ratio of LC3-II/LC3-I in Western blotting was not evidently changed during the wound healing process, LC3-positive dots were clearly observed in fibroblasts and myofibroblasts, and occasionally in macrophages, by immunohistofluorescence microscopy. Some of the LC3-positive dots were colocalized with Atg16L signal, an isolation membrane marker, and electron microscopy revealed the presence of typical autophagosomes in fibroblasts near the margin of the wound. The number of LC3-positive dots per fibroblast increased during the later period of the proliferation phase, and interestingly, it was higher in the margin than the center of the wound. It was also high in the periwound skin area. These results suggest that drastic functional changes in fibroblasts during wound healing process are accompanied by the alteration of the autophagy-lysosomal degradation system. PMID- 29343656 TI - CRISPR-Cas9-mediated generation of obese and diabetic mouse models. AB - Mouse models of obesity (ob/ob) and diabetes (db/db) in which the leptin (Lep) and leptin receptor (Lepr) genes have been mutated, respectively, have contributed to a better understanding of human obesity and type 2 diabetes and to the prevention, diagnosis, and treatment of these metabolic diseases. In this study, we report the first CRISPR-Cas9-induced Lep and Lepr knockout (KO) mouse models by co-microinjection of Cas9 mRNA and sgRNAs that specifically targeted Lep or Lepr in C57BL/6J embryos. Our newly established Lep and Lepr KO mouse models showed phenotypic disorders nearly identical to those found in ob/ob and db/db mice, such as an increase in body weight, hyperglycemia, and hepatic steatosis. Thus, Cas9-generated Lep and Lepr KO mouse lines will be easier for genotyping, to maintain the lines, and to use for future obesity and diabetes research. PMID- 29343657 TI - Combining Segmented Grey and White Matter Images Improves Voxel-based Morphometry for the Case of Dilated Lateral Ventricles. AB - PURPOSE: To evaluate the error in segmented tissue images and to show the usefulness of the brain image in voxel-based morphometry (VBM) using Statistical Parametric Mapping (SPM) 12 software and 3D T1-weighted magnetic resonance images (3D-T1WIs) processed to simulate idiopathic normal pressure hydrocephalus (iNPH). MATERIALS AND METHODS: VBM analysis was performed on sagittal 3D-T1WIs obtained in 22 healthy volunteers using a 1.5T MR scanner. Regions of interest for the lateral ventricles of all subjects were carefully outlined on the original 3D T1WIs, and two types of simulated 3D-T1WI were also prepared (non-dilated 3D-T1WI as normal control and dilated 3D-T1WI to simulate iNPH). All simulated 3D-T1WIs were segmented into gray matter, white matter, and cerebrospinal fluid images, and normalized to standard space. A brain image was made by adding the gray and white matter images. After smoothing with a 6-mm isotropic Gaussian kernel, group comparisons (dilated vs non-dilated) were made for gray and white matter, cerebrospinal fluid, and brain images using a paired t-test. RESULTS: In evaluation of tissue volume, estimation error was larger using gray or white matter images than using the brain image, and estimation errors in gray and white matter volume change were found for the brain surface. CONCLUSION: To our knowledge, this is the first VBM study to show the possibility that VBM of gray and white matter volume on the brain surface may be more affected by individual differences in the level of dilation of the lateral ventricles than by individual differences in gray and white matter volumes. We recommend that VBM evaluation in patients with iNPH should be performed using the brain image rather than the gray and white matter images. PMID- 29343658 TI - Differences in Signal Intensity and Enhancement on MR Images of the Perivascular Spaces in the Basal Ganglia versus Those in White Matter. AB - PURPOSE: To elucidate differences between the perivascular space (PVS) in the basal ganglia (BG) versus that found in white matter (WM) using heavily T2 weighted FLAIR (hT2-FL) in terms of 1) signal intensity on non-contrast enhanced images, and 2) the degree of contrast enhancement by intravenous single dose administration of gadolinium based contrast agent (IV-SD-GBCA). MATERIALS AND METHODS: Eight healthy men and 13 patients with suspected endolymphatic hydrops were included. No subjects had renal insufficiency. All subjects received IV-SD GBCA. MR cisternography (MRC) and hT2-FL images were obtained prior to and 4 h after IV-SD-GBCA. The signal intensity of the PVS in the BG, subinsular WM, and the cerebrospinal fluid (CSF) in Ambient cistern (CSFAC) and CSF in Sylvian fissure (CSFSyl) was measured as well as that of the thalamus. The signal intensity ratio (SIR) was calculated by dividing the intensity by that of the thalamus. We used 5% as a threshold to determine the significance of the statistical test. RESULTS: In the pre-contrast scan, the SIR of the PVS in WM (Mean +/- standard deviation, 1.83 +/- 0.46) was significantly higher than that of the PVS in the BG (1.05 +/- 0.154), CSFSyl (1.03 +/- 0.15) and the CSFAC (0.97 +/- 0.29). There was no significant difference between the SIR of the PVS in the BG compared to the CSFAC and CSFSyl. For the evaluation of the contrast enhancement effect, significant enhancement was observed in the PVS in the BG, the CSFAC and the CSFSyl compared to the pre-contrast scan. No significant contrast enhancement was observed in the PVS in WM. CONCLUSION: The signal intensity difference between the PVS in the BG versus WM on pre-contrast images suggests that the fluid composition might be different between these PVSs. The difference in the contrast enhancement between the PVSs in the BG versus WM suggests a difference in drainage function. PMID- 29343660 TI - MR-guided Focused Ultrasound for Uterine Fibroids: A Preliminary Study of Relationship between the Treatment Outcomes and Factors of MR Images Including Elastography. AB - We evaluated the value of magnetic resonance elastography (MRE) for the prediction of response to magnetic resonance-guided focused ultrasound (MRgFUS) for uterine fibroids. Eleven patients were enrolled. A fractional change of >30% in Symptoms Severity Score (SSS) was defined as a 'substantial symptomatic improvement' at 12 months after treatment. The fractional stiffness value reduction in the patients with a substantial improvement in SSS was significantly higher than that in those without (P = 0.0446). PMID- 29343659 TI - Cardiac MR Imaging of Hypertrophic Cardiomyopathy: Techniques, Findings, and Clinical Relevance. AB - Hypertrophic cardiomyopathy (HCM) is a relatively common myocardial genetic disease having a wide variety of symptoms and prognoses. The most serious complications of HCM are sudden cardiac death induced by ventricular arrhythmia or inappropriate changes in blood pressure, and heart failure. Cardiac MR imaging is a valuable imaging method for detecting HCM because of its accurate measurement of wall thickness and myocardial mass without limited view and the unique ability of late gadolinium enhancement (LGE) to identify myocardial fibrosis related to the prognosis of HCM. Tagging and T1 or T2 mapping MR imaging techniques have emerged as quantitative methods for the evaluation of disease severity. In this review, we introduce the MR imaging techniques applied to HCM and demonstrate the typical phenotypes and some morphological characteristics of HCM. In addition, we discuss the clinical relevance of MR imaging for risk stratification and management of HCM. PMID- 29343661 TI - Immobilization Technique for High-Resolution MR Imaging of the Testes. AB - Techniques for testis immobilization can facilitate high-resolution MR imaging applications for testicular diseases by assuring good positioning of the testis on small radiofrequency coils and reducing motion artifacts. We tested negative pressure suction to immobilize the testis of rats during MR image acquisitions. Suction pressure between -5 and -10 kPa assured good positioning, suppressed motion artifacts, and allowed the observation of blood vessels and seminiferous tubules. PMID- 29343662 TI - Cost-Benefit Performance Simulation of Robot-Assisted Thoracic Surgery As Required for Financial Viability under the 2016 Revised Reimbursement Paradigm of the Japanese National Health Insurance System. AB - PURPOSE: To discuss the cost-benefit performance (CBP) and establish a medical fee system for robotic-assisted thoracic surgery (RATS) under the Japanese National Health Insurance System (JNHIS), which is a system not yet firmly established. METHODS: All management steps for RATS are identical, such as preoperative and postoperative management. This study examines the CBP based on medical fees of RATS under the JNHIS introduced in 2016. RESULTS: Robotic assisted laparoscopic prostatectomy (RALP) and robotic-assisted partial nephrectomy (RAPN) now receive insurance reimbursement under the category of use of support devices for endoscopic surgery ($5420 and $3485, respectively). If the same standard amount were to be applied to RATS, institutions would need to perform at least 150 or 300 procedures thoracic operation per year to show a positive CBP ($317 per procedure as same of RALP and $130 per procedure as same of RAPN, respectively). CONCLUSION: Robotic surgery in some areas receives insurance reimbursement for its "supportive" use for endoscopic surgery as for RALP and RAPN. However, at present, it is necessary to perform da Vinci Surgical System Si (dVSi) surgery at least 150-300 times in a year in a given institution to prevent a deficit in income. PMID- 29343663 TI - The Efficacy of VATS and Intrapleural Fibrinolytic Therapy in Parapneumonic Empyema Treatment. AB - BACKGROUND: Development of multiloculation-septation is a challenging entity in empyema patients. In this study, it is aimed to investigate the success rates of videothoracoscopic deloculation (VATS-D) and intrapleural fibrinolytic (IPFib) application after tube thoracostomy. METHODS: The study retrospectively examined the patients diagnosed with empyema with multiloculation and septation between January 2005 and December 2014. Among these patients, the study included those who received VATS-D or IPFib therapy. RESULTS: VATS-D (Group 1) was applied to 54 patients and IPFib (Group 2) was applied to 24 patients. The success of both procedures was evaluated considering the need of decortication in the following periods. In the VATS-D group, 4 (7.4%) patients required decortication via thoracotomy where it was 1 (4.1%) patient (p = 0.577) in the IPFib group. The length of hospital stay was 6.81 +/- 2.55 (4-15) days in Group 1 compared to 14.25 +/- 6.44 (7-27) days in Group 2 (p <0.001). CONCLUSIONS: It was demonstrated that both of the methods applied in the study have high efficacy and are preferable methods based on the general conditions of patients. Additionally, the shorter length of hospital stays in patients received VATS-D was established as a significant parameter. PMID- 29343664 TI - The anti-inflammatory action of maropitant in a mouse model of acute pancreatitis. AB - The neurokinin 1 receptor (NK1R) plays an important role in the pathogenesis of acute pancreatitis (AP). Maropitant is an NK1R antagonist that is widely used as an antiemetic in dogs and cats. In the present study, we investigated the anti inflammatory action of maropitant in a mouse model of AP. AP was induced in BALB/c mice by intraperitoneal administration of cerulein, and maropitant was administered subcutaneously at a dose of 8 mg/kg. We assessed the mRNA expression levels of NK1R and substance P (SP) in the pancreatic tissue via real-time reverse transcription polymerase chain reaction. In addition, the effect of maropitant on plasma amylase, lipase, and interleukin-6 (IL-6) levels was measured in each mouse. Inflammatory cell infiltration in the pancreas was assessed by myeloperoxidase (MPO) staining. Our results showed that AP induction significantly elevated the mRNA expression of SP in the pancreatic tissue. Treatment with maropitant significantly lowered plasma amylase and IL-6 levels. In addition, treatment with maropitant inhibited the infiltration of MPO-positive cells in the pancreas. The present study suggests that maropitant possesses an anti-inflammatory activity, in addition to its antiemetic action. PMID- 29343665 TI - Molecular characterization of gliadins of Chinese Spring wheat in relation to celiac disease elicitors. AB - The wheat seed storage proteins gliadin and glutenin are encoded by multigenes. Gliadins are further classified into alpha-, gamma-, delta- and omega-gliadins. Genes encoding alpha-gliadins belong to a large multigene family, whose members are located on the homoeologous group 6 chromosomes at the Gli-2 loci. Genes encoding other gliadins are located on the homoeologous group 1 chromosomes at the Gli-1 loci. Two-dimensional polyacrylamide gel electrophoresis (2-DE) was used to characterize and profile the gliadins. The gliadins in aneuploid Chinese Spring wheat lines were then compared in this study. Gliadin proteins separated into 70 spots after 2-DE and a total of 10, 10 and 16 spots were encoded on chromosomes 6A, 6B and 6D, respectively, which suggested that they were alpha gliadins. Similarly, six, three and seven spots were encoded on chromosomes 1A, 1B and 1D, respectively, which indicated that they were gamma-gliadins. Spots that could not be assigned to chromosomes were N-terminally sequenced and were all determined to be alpha-gliadins or gamma-gliadins. The 2-DE profiles showed that specific alpha-gliadin spots assigned to chromosome 6D were lost in tetrasomic chromosome 2A lines. Furthermore, western blotting against the Glia alpha9 peptide, an epitope for celiac disease (CD), suggested that alpha-gliadins harboring the CD epitope on chromosome 6D were absent in the tetrasomic chromosome 2A lines. Systematic analysis of alpha-gliadins using 2-DE, quantitative RT-PCR and genomic PCR revealed that tetrasomic 2A lines carry deletion of a chromosome segment at the Gli-D2 locus. This structural alteration at the Gli-D2 locus may provide a genetic resource in breeding programs for the reduction of CD immunotoxicity. PMID- 29343666 TI - The C-terminal extension domain of Saccharomyces cerevisiae MrpL32, a homolog of ribosomal protein L32, functions in trans to support mitochondrial translation. AB - Mitochondrial ribosomal protein L32 (MrpL32) of Saccharomyces cerevisiae is homologous to the bacterial L32 ribosomal protein. MrpL32 carries an N-terminal mitochondrion-targeting sequence (MTS) and is about 60 amino acid residues longer at the C-terminus. Adding to its function as a leader sequence, the MTS of MrpL32 has been reported to regulate ribosome biogenesis through its processing by m-AAA protease. However, the function of the C-terminal extension (CE) remains totally unknown. Therefore, we constructed a series of C-terminally truncated mrpl32 (mrpl32DeltaC) genes and expressed them in a Deltamrpl32 mutant to examine their function. Interestingly, some MrpL32DeltaC derivatives exhibited temperature sensitive (ts) growth on medium with non-fermentable carbon sources. Furthermore, the CE domain of MrpL32, expressed separately from MrpL32DeltaC, could rescue the ts phenotype of mutants by improving mitochondrial protein synthesis. PMID- 29343667 TI - Genotypic effects on sugar and by-products of liquid hydrolysates and on saccharification of acid-insoluble residues from wheat straw. AB - Wheat straw is one of the major attractive resources for low-cost raw materials for renewable energy, biofuels and biochemicals. However, like other sources of lignocellulosic biomass, straw is a heterogeneous material due to its mixed origin from different tissue and cell types. Here, to examine the genotypic effects on biorefinery usage of wheat straw, straw obtained from different wheat cultivars and experimental lines was pretreated with dilute acid. Significant differences between cultivars were observed in the concentrations of glucose and toxic by-products of the liquid hydrolysates. A higher content of xylose than glucose was found in liquid hydrolysates from wheat straw, and the xylose content appeared to be affected by both environmental and genetic factors. Analysis using chromosome substitution lines of the common wheat cultivar Chinese Spring showed that chromosomes 2A and 3A from other wheat cultivars, Hope and Timstein, significantly increased the xylose content. However, no significant relationship was observed between the liquid hydrolysate xylose content and the glucose content obtained from enzymatic saccharification of the acid-insoluble residue. These results highlight the potential of wheat breeding to improve biomass related traits in wheat straw. PMID- 29343668 TI - Configuration of the sugar head of glycolipids in thylakoid membranes. AB - Glycolipids constitute the majority of membrane components in oxygenic photosynthetic organisms, whereas they are minor lipids in other organisms. In cyanobacteria, three glycolipids comprise ~90 mol% of the total lipids in thylakoid membranes, where photosynthetic electron transport occurs. Among these glycolipids, 80 mol% are galactolipids (monogalactosyldiacylglycerol and digalactosyldiacylglycerol). Galactolipids are well conserved in oxygenic photosynthetic organisms and are believed to be essential for the integrity of the membrane system. It remains unclear, however, which part(s) of the galactolipid structure is the key factor for their function, e.g., the sugar moiety and/or the anomeric configuration. To address this issue, several bacterial membrane glycolipid synthase genes have been introduced into cyanobacteria to test for complementation of knocked-out genes involved in galactolipid biosynthesis. In this review, we summarize recent advances in the analyses of sugar species and configurations of glycolipids heterologously synthesized in the thylakoid membrane and discuss their functional importance. PMID- 29343669 TI - Direct interaction between VRN1 protein and the promoter region of the wheat FT gene. AB - The wheat florigen gene Wheat FLOWERING LOCUS T (WFT, which is identical to VRN3) is an integrator of the vernalization, photoperiod and autonomous pathways in wheat flowering. Many studies have indicated that VERNALIZATION 1 (VRN1) directly or indirectly up-regulates WFT expression in leaves. VRN1 encodes an APETALA1/FRUITFULL-like MADS box transcription factor that is up-regulated by vernalization and aging, leading to promotion of flowering. In this study, the VRN1 protein was expressed as a His-Tag fusion protein in Escherichia coli and used in an electrophoretic mobility shift assay (EMSA). The results from the EMSA indicated that the VRN1 protein directly binds to the CArG-box in the promoter region of WFT, suggesting the direct up-regulation of WFT by VRN1 in the leaves of wheat plants. PMID- 29343670 TI - Anti-sigma factor-mediated cell surface stress responses in Bacillus subtilis. AB - Proteins belonging to the sigma factor family in eubacteria initiate transcription by associating with RNA polymerase. A subfamily, the extracytoplasmic function (ECF) sigma factors, which form a widely distributed bacterial signal transduction system comprising a sigma factor and a cognate membrane-embedded anti-sigma factor, regulates genes in response to stressors that threaten cell envelope integrity including the cell wall and membrane. The Gram-positive soil bacterium Bacillus subtilis provides a valuable model for investigation of the ECF sigma factors. This review focuses on the function and regulation of ECF sigma factors in B. subtilis, in which anti-sigma factors play a role in connecting an external stimulus with gene regulation. As representative examples, the regulon and regulatory mechanism of sigmaW are closely associated with membrane-active stressors, whereas sigmaM is strongly induced by conditions that impair peptidoglycan synthesis. These studies demonstrate that the mechanisms of ECF-dependent signaling are divergent and constitute a multi layered hierarchy, and provide useful insights into the elucidation of unknown mechanisms related to ECF sigma factors. PMID- 29343672 TI - Applying the Seattle Heart Failure Model in the Office Setting in the Era of Electronic Medical Records. AB - BACKGROUND: Prediction models such as the Seattle Heart Failure Model (SHFM) can help guide management of heart failure (HF) patients, but the SHFM has not been validated in the office environment. This retrospective cohort study assessed the predictive performance of the SHFM among patients with new or pre-existing HF in the context of an office visit.Methods and Results:SHFM elements were ascertained through electronic medical records at an office visit. The primary outcome was all-cause mortality. A "warranty period" for the baseline SHFM risk estimate was sought by examining predictive performance over time through a series of landmark analyses. Discrimination and calibration were estimated according to the proposed warranty period. Low- and high-risk thresholds were proposed based on the distribution of SHFM estimates. Among 26,851 HF patients, 14,380 (54%) died over a mean 4.7-year follow-up period. The SHFM lost predictive performance over time, with C=0.69 and C<0.65 within 3 and beyond 12 months from baseline respectively. The diminishing predictive value was attributed to modifiable SHFM elements. Discrimination (C=0.66) and calibration for 12-month mortality were acceptable. A low-risk threshold of ~5% mortality risk within 12 months reflects the 10% of HF patients in the office setting with the lowest risk. CONCLUSIONS: The SHFM has utility in the office environment. PMID- 29343671 TI - Development of microsatellite markers for the endangered orchid Calanthe izu insularis (Orchidaceae). AB - Microsatellite markers were developed for the endangered orchid Calanthe izu insularis (Orchidaceae). This species is unique to the Izu Islands in Japan. Unfortunately, its population size has decreased because of excessive collection for horticultural purposes. In addition, although natural hybridization between C. izu-insularis and C. discolor var. discolor has been reported, morphological differences between C. izu-insularis and the hybridized individuals remain unclear. Using next-generation sequencing, 11 polymorphic microsatellite markers were developed. All developed markers could amplify C. aristulifera and nine markers could amplify C. d. var. discolor, two other orchid species that are also endangered in Japan. The number of alleles and expected heterozygosity at each locus were 1-6 (mean, 2.35) and 0.00-0.79 (mean, 0.30), respectively. These microsatellite markers will help conservation geneticists in their investigation of the proportion of pure C. izu-insularis individuals in the Izu Islands. PMID- 29343673 TI - Transcutaneous Exercise Oximetry for Patients With Claudication - A Retrospective Review of Approximately 5,000 Consecutive Tests Over 15 Years. AB - BACKGROUND: Exercise transcutaneous oximetry (Ex-tcPO2) is used to argue for the vascular origin of lower limb pain, especially at the proximal level, where the diagnosis of peripheral artery disease can be difficult. This study analyzed the principal indications, mean results, and limitations of Ex-tcPO2, as well as the relationship between the annual number of Ex-tcPO2 tests and internal iliac artery (IIA) revascularizations.Methods and Results:Data from our first 15 years' experience (3,631 patients, 5,080 tests) with Ex-tcPO2 were analyzed retrospectively using the minimal value of the decrease from rest of oxygen pressure (DROPmin). We had 99.7% of expected DROPminresults. The proportion of tests showing isolated proximal unilateral or bilateral ischemia ranged from ~5% to ~20%. A gradual increase with time was observed in both the annual number of Ex-tcPO2 tests (from 0 to ~500 per year) and the annual number of IIA revascularizations performed (from 0 up to 18 per year). At least 85% of patients (77/91) showed function improvement after IIA revascularization. CONCLUSIONS: Ex tcPO2 (using DROPmin) provides an objective argument for exercise-induced ischemia, bilaterally at the distal and/or proximal level. Using Ex-tcPO2 has improved our diagnostic performance and markedly changed our therapeutic decisions, specifically for proximal claudication. The increased number of Ex tcPO2 tests is associated with an increased number of IIA revascularizations, although a causal relationship was not proven. PMID- 29343674 TI - A Spontaneous Abdominal Aortic Pseudoaneurysm Treated with N-butyl Cyanoacrylate and Coil Embolization: A Case Report. AB - Pseudoaneurysms are vascular spaces vulnerable to pressure, and expansion or rupture of these spaces may occur during embolization. Here, we describe the case of a transcatheter embolization of a spontaneous aortic pseudoaneurysm, which showed gradual expansion during n-butyl cyanoacrylate embolization. This pseudoaneurysm was successfully embolized with an adjuvant coil. PMID- 29343676 TI - Editorial Statistics and Best Reviewers Award for 2017. PMID- 29343675 TI - Diagnostic Accuracy of Quantitative Flow Ratio for Assessing Myocardial Ischemia in Prior Myocardial Infarction. AB - BACKGROUND: A novel index of the functional severity of coronary stenosis, quantitative flow ratio (QFR), may not consider the amount of viable myocardium in prior myocardial infarction (MI) because QFR is calculated from 3D quantitative coronary angiography.Methods and Results:We analyzed QFR (fixed-flow QFR [fQFR] and contrast-flow QFR [cQFR]) and fractional flow reserve (FFR) in prior-MI-related coronary arteries (n=75) and non-prior-MI-related coronary arteries (n=75). Both fQFR and cQFR directly correlated with FFR in the prior-MI related coronary arteries (fQFR: r=0.84, P<0.001; and cQFR: r=0.88, P<0.001) and the non-prior-MI-related coronary arteries (fQFR: r=0.91, P<0.001; and cQFR: r=0.94, P<0.001). fQFR was significantly smaller than FFR in the prior-MI-related coronary arteries (0.73+/-0.14 vs. 0.79+/-0.11, P=0.002), but there was no significant difference between fQFR and FFR in the non-prior-MI-related coronary arteries. The value of cQFR minus FFR was significantly lower in the prior-MI related coronary arteries compared with the non-prior-MI-related coronary arteries (-0.02+/-0.06 vs. 0.00+/-0.04, P=0.010). The diagnostic accuracy of fQFR <=0.8 and cQFR <=0.8 for predicting FFR <=0.80 was numerically lower in the prior MI-related coronary arteries compared with the non-prior-MI-related coronary arteries (fQFR: 77% vs. 87%; and cQFR: 87% vs. 92%). CONCLUSIONS: When FFR is used as the gold standard, the accuracy of QFR for assessing the functional severity of coronary stenosis might be reduced in the prior-MI-related coronary arteries compared with non-prior-MI-related coronary arteries. PMID- 29343678 TI - Impact of Anemia on Left Ventricular Reverse Remodeling in Response to Carvedilol. PMID- 29343677 TI - Prognostic Factors in Glioblastoma: Is There a Role for Epilepsy? AB - The prognostic relevance of epilepsy at glioblastoma (GBMs) onset is still under debate. In this study, we analyzed the value of epilepsy and other prognostic factors on GBMs survival. We retrospectively analyzed the clinical, radiological, surgical and histological data in 139 GBMs. Seizures were the presenting symptoms in 50 patients out of 139 (35.9%). 123 patients (88%) were treated with craniotomy and tumor resection while 16 (12%) with biopsy. The median overall survival was 9.9 months from surgery. At univariable Cox regression, the factors that significantly improved survival were age less than 65 years (P = 0.0015), focal without impairment of consciousness seizures at presentation (P = 0.043), complete surgical resection (P < 0.001), pre-operative Karnofsky performance status (KPS) > 70 (P = 0.015), frontal location (P < 0.001), radiotherapy (XRT) plus concomitant and adjuvant TMZ (P < 0.001). A multivariable Cox regression showed that the complete surgical resection (P < 0.0001), age less than 65 years (P = 0.008), frontal location (P = 0.0001) and XRT adjuvant temozolomide (TMZ) (P < 0.0001) were independent factors on longer survival. In our series epilepsy at presentation is not an independent prognostic factor for longer survival in GBM patients. Only in the subgroup of patients with focal seizures without impairment of consciousness, epilepsy was associated with an increased significant overall survival at univariate analysis (P = 0.043). Main independent factors for relatively favorable GBMs outcome are complete tumor resection plus combined XRT TMZ, frontal location and patient age below 65 years old. PMID- 29343679 TI - Ramsay Hunt Syndrome with Multiple Cranial Neuropathy in an Human Immunodeficiency Virus (HIV) Patient. AB - BACKGROUND Ramsay Hunt syndrome is a rare otologic complication resulting from varicella zoster virus reactivation that can present with a myriad of clinical presentations. Most common being triad of ear pain, vesicles at auricle, and ear canal with same side facial palsy. CASE REPORT We report a case of a 29-year-old male with a human immunodeficiency virus (HIV) infection who presented with left facial palsy, vesicles, pain in the left ear, dysphagia, dizziness, and headache resulting from multiple cranial nerves involvement such as cranial nerve V, VII, VIII, IX, and X. CONCLUSIONS This case report raises awareness among general practitioners to investigate for Ramsay Hunt syndrome in HIV patients presenting with ear pain with a thorough neurological exam and emphasize on the interplay of different specialties in managing these patients. PMID- 29343680 TI - Martrilin-3 (MATN3) Overexpression in Gastric Adenocarcinoma and its Prognostic Significance. AB - BACKGROUND The aim of this study was to investigate the expression level of martrilin-3 (MATN3) in patients with gastric adenocarcinoma (GAC) and to investigate the prognostic significance of MATN3. MATERIAL AND METHODS Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data were used to predict the expression and prognostic value of MATN3 mRNA in GAC patients. Seventy-six GAC patients had GAC tissue samples and paired adjacent normal tissue samples collected retrospectively to examine the MATN3 protein expression level by immunohistochemical staining. Furthermore, Kaplan-Meier univariate and Cox multivariate analyses were used to verify the correlation between MATN3 expression and clinicopathological parameters of GAC patients and the prognostic significance of MATN3. RESULTS The GEO and TCGA data predicted that MATN3 mRNA levels were significantly higher in GAC tissue compared to normal tissue (all p<0.05). Further survival analyses showed that GAC patients with high mRNA expression of MATN3 had significantly lower disease-free survival (DFS) and overall survival (OS) time than those with low mRNA expression of MATN3 (all p<0.05). Subsequent immunohistochemical staining results confirmed that the MATN3 protein levels in GAC tissues were highly expressed (p=0.000) compared to normal tissues. In addition, GAC patients with high protein expression of MATN3 had remarkably decreased OS compared to patients with low protein expression of MATN3 (p=0.000). Univariate and multivariate survival analyses revealed that MATN3 high expression could be used as an independent predictor of poor prognosis in GAC patients (all p=0.000). CONCLUSIONS This study confirmed that MATN3 protein was highly expressed in GAC patients, and MATN3 overexpression could be used as an independent predictor of poor prognosis in GAC patients. PMID- 29343681 TI - Oral health in China: from vision to action. AB - Chinese president Xi Jinping made clear at the National Health and Wellness Conference that health is the prerequisite for people's all-around development and a precondition for the sustainable development of China. Oral health is an indispensable component of overall health in humans. However, the long neglect of oral health in overall health agendas has made oral diseases an increasing concern. With this perspective, we described the global challenges of oral diseases, with an emphasis on the challenges faced by China. We also described and analyzed the recently released health policies of the Chinese government, which aim to guide mid-term and long-term oral health promotion in China. More importantly, we called for specific actions to fulfill the larger goal of oral health for the nation. The implementation of primordial prevention efforts against oral diseases, the integration of oral health into the promotion of overall health, and the management of oral diseases in conjunction with other chronic non-communicable diseases with shared risk factors were highly recommended. In addition, we suggested the reform of standard clinical residency training, the development of domestic manufacturing of dental equipment and materials, the revitalization traditional Chinese medicine for the prevention and treatment of oral diseases, and integration of oral health promotion into the Belt and Road Initiative. We look forward to seeing a joint effort from all aspects of the society to fulfill the goal of Healthy China 2030 and ensure the oral health of the nation. PMID- 29343682 TI - Intermittent C1-Inhibitor Deficiency Associated with Recessive Inheritance: Functional and Structural Insight. AB - C1-inhibitor is a serine protease inhibitor (serpin) controlling complement and contact system activation. Gene mutations result in reduced C1-inhibitor functional plasma level causing hereditary angioedema, a life-threatening disorder. Despite a stable defect, the clinical expression of hereditary angioedema is unpredictable, and the molecular mechanism underlying this variability remains undisclosed. Here we report functional and structural studies on the Arg378Cys C1-inhibitor mutant found in a patient presenting reduced C1 inhibitor levels, episodically undergoing normalization. Expression studies resulted in a drop in mutant C1-innhibitor secretion compared to wild-type. Notwithstanding, the purified proteins had similar features. Thermal denaturation experiments showed a comparable denaturation profile, but the mutant thermal stability decays when tested in conditions reproducing intracellular crowding.Our findings suggest that once correctly folded, the Arg378Cys C1-inhibitor is secreted as an active, although quite unstable, monomer. However, it could bear a folding defect, occasionally promoting protein oligomerization and interfering with the secretion process, thus accounting for its plasma level variability. This defect is exacerbated by the nature of the mutation since the acquired cysteine leads to the formation of non-functional homodimers through inter molecular disulphide bonding. All the proposed phenomena could be modulated by specific environmental conditions, rendering this mutant exceptionally vulnerable to mild stress. PMID- 29343683 TI - Hypoxia-inducible factor-1alpha is a critical transcription factor for IL-10 producing B cells in autoimmune disease. AB - Hypoxia-inducible factors (HIFs) are key elements for controlling immune cell metabolism and functions. While HIFs are known to be involved in T cells and macrophages activation, their functions in B lymphocytes are poorly defined. Here, we show that hypoxia-inducible factor-1alpha (HIF-1alpha) contributes to IL 10 production by B cells. HIF-1alpha regulates IL-10 expression, and HIF-1alpha dependent glycolysis facilitates CD1dhiCD5+ B cells expansion. Mice with B cell specific deletion of Hif1a have reduced number of IL-10-producing B cells, which result in exacerbated collagen-induced arthritis and experimental autoimmune encephalomyelitis. Wild-type CD1dhiCD5+ B cells, but not Hif1a-deficient CD1dhiCD5+ B cells, protect recipient mice from autoimmune disease, while the protective function of Hif1a-deficient CD1dhiCD5+ B cells is restored when their defective IL-10 expression is genetically corrected. Taken together, this study demonstrates the key function of the hypoxia-associated transcription factor HIF 1alpha in driving IL-10 expression in CD1dhiCD5+ B cells, and in controlling their protective activity in autoimmune disease. PMID- 29343684 TI - MAIT cell clonal expansion and TCR repertoire shaping in human volunteers challenged with Salmonella Paratyphi A. AB - Mucosal-associated invariant T (MAIT) cells are innate-like T cells that can detect bacteria-derived metabolites presented on MR1. Here we show, using a controlled infection of humans with live Salmonella enterica serovar Paratyphi A, that MAIT cells are activated during infection, an effect maintained even after antibiotic treatment. At the peak of infection MAIT cell T-cell receptor (TCR)beta clonotypes that are over-represented prior to infection transiently contract. Select MAIT cell TCRbeta clonotypes that expand after infection have stronger TCR-dependent activation than do contracted clonotypes. Our results demonstrate that host exposure to antigen may drive clonal expansion of MAIT cells with increased functional avidity, suggesting a role for specific vaccination strategies to increase the frequency and potency of MAIT cells to optimize effector function. PMID- 29343685 TI - The protective role of DOT1L in UV-induced melanomagenesis. AB - The DOT1L histone H3 lysine 79 (H3K79) methyltransferase plays an oncogenic role in MLL-rearranged leukemogenesis. Here, we demonstrate that, in contrast to MLL rearranged leukemia, DOT1L plays a protective role in ultraviolet radiation (UVR) induced melanoma development. Specifically, the DOT1L gene is located in a frequently deleted region and undergoes somatic mutation in human melanoma. Specific mutations functionally compromise DOT1L methyltransferase enzyme activity leading to reduced H3K79 methylation. Importantly, in the absence of DOT1L, UVR-induced DNA damage is inefficiently repaired, so that DOT1L loss promotes melanoma development in mice after exposure to UVR. Mechanistically, DOT1L facilitates DNA damage repair, with DOT1L-methylated H3K79 involvement in binding and recruiting XPC to the DNA damage site for nucleotide excision repair (NER). This study indicates that DOT1L plays a protective role in UVR-induced melanomagenesis. PMID- 29343686 TI - Human brain patterns underlying vigilant attention: impact of sleep debt, circadian phase and attentional engagement. AB - Sleepiness and cognitive function vary over the 24-h day due to circadian and sleep-wake-dependent mechanisms. However, the underlying cerebral hallmarks associated with these variations remain to be fully established. Using functional magnetic resonance imaging (fMRI), we investigated brain responses associated with circadian and homeostatic sleep-wake-driven dynamics of subjective sleepiness throughout day and night. Healthy volunteers regularly performed a psychomotor vigilance task (PVT) in the MR-scanner during a 40-h sleep deprivation (high sleep pressure) and a 40-h multiple nap protocol (low sleep pressure). When sleep deprived, arousal-promoting thalamic activation during optimal PVT performance paralleled the time course of subjective sleepiness with peaks at night and troughs on the subsequent day. Conversely, task-related cortical activation decreased when sleepiness increased as a consequence of higher sleep debt. Under low sleep pressure, we did not observe any significant temporal association between PVT-related brain activation and subjective sleepiness. Thus, a circadian modulation in brain correlates of vigilant attention was only detectable under high sleep pressure conditions. Our data indicate that circadian and sleep homeostatic processes impact on vigilant attention via specific mechanisms; mirrored in a decline of cortical resources under high sleep pressure, opposed by a subcortical "rescuing" at adverse circadian times. PMID- 29343687 TI - Mechanically-sensitive miRNAs bias human mesenchymal stem cell fate via mTOR signalling. AB - Mechanotransduction is a strong driver of mesenchymal stem cell (MSC) fate. In vitro, variations in matrix mechanics invoke changes in MSC proliferation, migration and differentiation. However, when incorporating MSCs within injectable, inherently soft hydrogels, this dominance over MSC response substantially limits our ability to couple the ease of application of hydrogels with efficiently directed MSC differentiation, especially in the case of bone generation. Here, we identify differential miRNA expression in response to varying hydrogel stiffness and RhoA activity. We show that modulation of miR-100 5p and miR-143-3p can be used to bias MSC fate and provide mechanistic insight by demonstrating convergence on mTOR signalling. By modulating these mechanosensitive miRNAs, we can enhance osteogenesis in a soft 3D hydrogel. The outcomes of this study provide new understanding of the mechanisms regulating MSC mechanotransduction and differentiation, but also a novel strategy with which to drive MSC fate and significantly impact MSC-based tissue-engineering applications. PMID- 29343688 TI - Wee1 inhibitor MK1775 sensitizes KRAS mutated NSCLC cells to sorafenib. AB - Non-Small-Cell Lung Cancer (NSCLC) is a poorly chemosensitive tumor and targeted therapies are only used for about 15% of patients where a specific driving and druggable lesion is observed (EGFR, ALK, ROS). KRAS is one of the most frequently mutated genes in NSCLC and patients harboring these mutations do not benefit from specific treatments. Sorafenib, a multi-target tyrosine kinase inhibitor, was proposed as a potentially active drug in KRAS-mutated NSCLC patients, but clinical trials results were not conclusive. Here we show that the NSCLC cells' response to sorafenib depends on the type of KRAS mutation. KRAS G12V cells respond less to sorafenib than the wild-type counterpart, in vitro and in vivo. To overcome this resistance, we used high-throughput screening with a siRNA library directed against 719 human kinases, and Wee1 was selected as a sorafenib response modulator. Inhibition of Wee1 by its specific inhibitor MK1775 in combination with sorafenib restored the KRAS mutated cells' response to the multi target tyrosine kinase inhibitor. This combination of the Wee1 inhibitor with sorafenib, if confirmed in models with different genetic backgrounds, might be worth investigating further as a new strategy for KRAS mutated NSCLC. PMID- 29343689 TI - A novel alpha-conopeptide Eu1.6 inhibits N-type (CaV2.2) calcium channels and exhibits potent analgesic activity. AB - We here describe a novel alpha-conopeptide, Eu1.6 from Conus eburneus, which exhibits strong anti-nociceptive activity by an unexpected mechanism of action. Unlike other alpha-conopeptides that largely target nicotinic acetylcholine receptors (nAChRs), Eu1.6 displayed only weak inhibitory activity at the alpha3beta4 and alpha7 nAChR subtypes and TTX-resistant sodium channels, and no activity at TTX-sensitive sodium channels in rat dorsal root ganglion (DRG) neurons, or opiate receptors, VR1, KCNQ1, L- and T-type calcium channels expressed in HEK293 cells. However, Eu1.6 inhibited high voltage-activated N-type calcium channel currents in isolated mouse DRG neurons which was independent of GABAB receptor activation. In HEK293 cells expressing CaV2.2 channels alone, Eu1.6 reversibly inhibited depolarization-activated Ba2+ currents in a voltage- and state-dependent manner. Inhibition of CaV2.2 by Eu1.6 was concentration dependent (IC50 ~1 nM). Significantly, systemic administration of Eu1.6 at doses of 2.5-5.0 MUg/kg exhibited potent analgesic activities in rat partial sciatic nerve injury and chronic constriction injury pain models. Furthermore, Eu1.6 had no significant side-effect on spontaneous locomotor activity, cardiac and respiratory function, and drug dependence in mice. These findings suggest alpha conopeptide Eu1.6 is a potent analgesic for the treatment of neuropathic and chronic pain and opens a novel option for future analgesic drug design. PMID- 29343691 TI - Use of nanoparticle concentration as a tool to understand the structural properties of colloids. AB - Elucidation of the structural properties of colloids is paramount for a successful formulation. However, the intrinsic dynamism of colloidal systems makes their characterization a difficult task and, in particular, there is a lack of physicochemical techniques that can be correlated to their biological performance. Nanoparticle tracking analysis (NTA) allows measurements of size distribution and nanoparticle concentration in real time. Its analysis over time also enables the early detection of physical instability in the systems not assessed by subtle changes in size distribution. Nanoparticle concentration is a parameter with the potential to bridge the gap between in vitro characterization and biological performance of colloids, and therefore should be monitored in stability studies of formulations. To demonstrate this, we have followed two systems: extruded liposomes exposed to increasing CHCl3 concentrations, and solid lipid nanoparticles prepared with decreasing amounts of poloxamer 188. NTA and dynamic light scattering (DLS) were used to monitor changes in nanoparticle number and size, and to estimate the number of lipid components per particle. The results revealed a strong negative correlation between particle size (determined by DLS) and concentration (assessed by NTA) in diluted samples, which should be adopted to monitor nanocolloidal stability, especially in drug delivery. PMID- 29343690 TI - Experimental infection of cattle with Mycobacterium tuberculosis isolates shows the attenuation of the human tubercle bacillus for cattle. AB - The Mycobacterium tuberculosis complex (MTBC) is the collective term given to the group of bacteria that cause tuberculosis (TB) in mammals. It has been reported that M. tuberculosis H37Rv, a standard reference MTBC strain, is attenuated in cattle compared to Mycobacterium bovis. However, as M. tuberculosis H37Rv was isolated in the early 1930s, and genetic variants are known to exist, we sought to revisit this question of attenuation of M. tuberculosis for cattle by performing a bovine experimental infection with a recent M. tuberculosis isolate. Here we report infection of cattle using M. bovis AF2122/97, M. tuberculosis H37Rv, and M. tuberculosis BTB1558, the latter isolated in 2008 during a TB surveillance project in Ethiopian cattle. We show that both M. tuberculosis strains caused reduced gross pathology and histopathology in cattle compared to M. bovis. Using M. tuberculosis H37Rv and M. bovis AF2122/97 as the extremes in terms of infection outcome, we used RNA-Seq analysis to explore differences in the peripheral response to infection as a route to identify biomarkers of progressive disease in contrast to a more quiescent, latent infection. Our work shows the attenuation of M. tuberculosis strains for cattle, and emphasizes the potential of the bovine model as a 'One Health' approach to inform human TB biomarker development and post-exposure vaccine development. PMID- 29343692 TI - Symmetric Decomposition of Asymmetric Games. AB - We introduce new theoretical insights into two-population asymmetric games allowing for an elegant symmetric decomposition into two single population symmetric games. Specifically, we show how an asymmetric bimatrix game (A,B) can be decomposed into its symmetric counterparts by envisioning and investigating the payoff tables (A and B) that constitute the asymmetric game, as two independent, single population, symmetric games. We reveal several surprising formal relationships between an asymmetric two-population game and its symmetric single population counterparts, which facilitate a convenient analysis of the original asymmetric game due to the dimensionality reduction of the decomposition. The main finding reveals that if (x,y) is a Nash equilibrium of an asymmetric game (A,B), this implies that y is a Nash equilibrium of the symmetric counterpart game determined by payoff table A, and x is a Nash equilibrium of the symmetric counterpart game determined by payoff table B. Also the reverse holds and combinations of Nash equilibria of the counterpart games form Nash equilibria of the asymmetric game. We illustrate how these formal relationships aid in identifying and analysing the Nash structure of asymmetric games, by examining the evolutionary dynamics of the simpler counterpart games in several canonical examples. PMID- 29343693 TI - Phantom Acupuncture Induces Placebo Credibility and Vicarious Sensations: A Parallel fMRI Study of Low Back Pain Patients. AB - Although acupuncture is an effective therapeutic intervention for pain reduction, the exact difference between real and sham acupuncture has not been clearly understood because a somatosensory tactile component is commonly included in the existing sham acupuncture protocols. In an event-related fMRI experiment, we implemented a novel form of sham acupuncture, phantom acupuncture, that reproduces the acupuncture needling procedure without somatosensory tactile stimulation while maintaining the credibility of the acupuncture treatment context. Fifty-six non-specific low back pain patients received either real (REAL) or phantom (PHNT) acupuncture stimulation in a parallel group study. The REAL group exhibited greater activation in the posterior insula and anterior cingulate cortex, reflecting the needling-specific components of acupuncture. We demonstrated that PHNT could be delivered credibly. Interestingly, the PHNT credible group exhibited bilateral activation in SI/SII and also reported vicarious acupuncture sensations without needling stimulation. The PHNT group showed greater activation in the bilateral dorsolateral/ventrolateral prefrontal cortex (dlPFC/vlPFC). Moreover, the PHNT group exhibited significant pain reduction, with a significant correlation between the subjective fMRI signal in the right dlPFC/vlPFC and a score assessing belief in acupuncture effectiveness. These results support an expectation-related placebo analgesic effect on subjective pain intensity ratings, possibly mediated by right prefrontal cortex activity. PMID- 29343694 TI - Sertraline, Paroxetine, and Chlorpromazine Are Rapidly Acting Anthelmintic Drugs Capable of Clinical Repurposing. AB - Parasitic helminths infect over 1 billion people worldwide, while current treatments rely on a limited arsenal of drugs. To expedite drug discovery, we screened a small-molecule library of compounds with histories of use in human clinical trials for anthelmintic activity against the soil nematode Caenorhabditis elegans. From this screen, we found that the neuromodulatory drugs sertraline, paroxetine, and chlorpromazine kill C. elegans at multiple life stages including embryos, developing larvae and gravid adults. These drugs act rapidly to inhibit C. elegans feeding within minutes of exposure. Sertraline, paroxetine, and chlorpromazine also decrease motility of adult Trichuris muris whipworms, prevent hatching and development of Ancylostoma caninum hookworms and kill Schistosoma mansoni flatworms, three widely divergent parasitic helminth species. C. elegans mutants with resistance to known anthelmintic drugs such as ivermectin are equally or more susceptible to these three drugs, suggesting that they may act on novel targets to kill worms. Sertraline, paroxetine, and chlorpromazine have long histories of use clinically as antidepressant or antipsychotic medicines. They may represent new classes of anthelmintic drug that could be used in combination with existing front-line drugs to boost effectiveness of anti-parasite treatment as well as offset the development of parasite drug resistance. PMID- 29343695 TI - Altered pattern of monocyte differentiation and monocyte-derived TGF-beta1 in severe asthma. AB - CD14+ monocytes contain precursors for macrophages and fibrocytes, known to be involved in regulating airway remodeling in human asthma and distinguishable by the PM-2K marker. We sought to identify circulating subsets of PM-2K+ macrophage like cells and evaluate their relationships to lung function, severity and control status. Circulating PM-2K+ macrophage-like cells and fibrocytes could be identified and distinguished between normal individuals (N = 152) and asthmatic subjects (N = 133) using multi-parametric flow cytometry. PM-2K+ macrophage-like cells were found to be significantly lower in asthmatic subjects, particularly noted for the CD14-PM-2K+ subset and PM-2K+CCR7-CD86+ cells in subjects with poor lung function (FEV%/FVC% < 80%) as compared to those of normal subjects and asthmatics with normal lung function, whereas the frequency of fibrocytes was higher in asthmatics and the CCR7-CD86+ subset distribution was significantly different in subjects with varying severity. Moreover, exogenous transforming growth factor beta 1 (TGF-beta1) was found to inhibit the generation of PM-2K+ macrophage-like cells, but promote the growth of fibrocytes, from CD14+ monocytes, and monocyte-derived TGF-beta1 was found to correlate with the lung function, severity and control status in asthmatic patients. Collectively, aberrant differentiation of monocytes into PM-2K+ macrophage-like cell subsets and fibrocytes, together with increased monocyte-derived TGF-beta1, characterized patients with severe asthma. PMID- 29343696 TI - Decoupled in-plane Dipole Resonance Modulated Colorimetric Assay-Based Optical Ruler for Ultra-Trace Gold (Au) Detection. AB - Decoupling of different plasmon resonance modes (in-plane, and out-of-plane dipole and quadrupole resonances) by tuning nanoparticle's size and shape offers a new field of plasmonics as colorimetric assay-based optical-ruler for ultra trace sensing. Driven by its low cost, easy to perform and efficient way to measure trace level (up to 30 ppt in presence of common mining elements in natural gold ore) abundance, this study develops a highly selective and ultrasensitive turn-on colorimetric sensor to detect gold-ion from environmental samples. Different level of gold-ion tracer makes size variable spherical- and disc-shaped silver nanoparticles when added to a 'growth solution' which results decoupling of in-plane dipole resonance from in-plane quadrupole and out-of-plane dipole resonances with a wide range of in-plane dipole plasmon tunability to generate different colors. This color-coded sensing of gold-ion shows high selectivity and ultrasensitivity over other metal ions in the ppt level with an impurity aberration limit of 1 ppm. A plausible explanation explains the possible role of catalytic gold-ion to initiate unfavorable silver ion (Ag+) reduction by ascorbic acid to generate silver nanoparticles. Proposed technology has been applied in real mining sample (Bugunda Gold Deposit, Tajikistan) to detect gold concentration from ores to find potential application in mining technology. PMID- 29343697 TI - Effluent and serum protein N-glycosylation is associated with inflammation and peritoneal membrane transport characteristics in peritoneal dialysis patients. AB - Mass spectrometric glycomics was used as an innovative approach to identify biomarkers in serum and dialysate samples from peritoneal dialysis (PD) patients. PD is a life-saving treatment worldwide applied in more than 100,000 patients suffering from chronic kidney disease. PD treatment uses the peritoneum as a natural membrane to exchange waste products from blood to a glucose-based solution. Daily exposure of the peritoneal membrane to these solutions may cause complications such as peritonitis, fibrosis and inflammation which, in the long term, lead to the failure of the treatment. It has been shown in the last years that protein N-glycosylation is related to inflammatory and fibrotic processes. Here, by using a recently developed MALDI-TOF-MS method with linkage-specific sialic acid derivatisation, we showed that alpha2,6-sialylation, especially in triantennary N-glycans from peritoneal effluents, is associated with critical clinical outcomes in a prospective cohort of 94 PD patients. Moreover, we found an association between the levels of presumably immunoglobulin-G-related glycans as well as galactosylation of diantennary glycans with PD-related complications such as peritonitis and loss of peritoneal mesothelial cell mass. The observed glycomic changes point to changes in protein abundance and protein-specific glycosylation, representing candidate functional biomarkers of PD and associated complications. PMID- 29343698 TI - Correlations between mitochondrial DNA haplogroup D5 and chronic hepatitis B virus infection in Yunnan, China. AB - Mitochondrial abnormality is frequently reported in individuals with hepatitis B virus (HBV) infection, but the associated hosts' mitochondrial genetic factors remain obscure. We hypothesized that mitochondria may affect host susceptibility to HBV infection. In this study, we aimed to detect the association between chronic HBV infection and mitochondrial DNA in Chinese from Yunnan, Southwest China. A total of 272 individuals with chronic HBV infection (CHB), 310 who had never been infected by HBV (healthy controls, HC) and 278 with a trace of HBV infection (spontaneously recovered, SR) were analysed for mtDNA sequence variations and classified into respective haplogroups. Haplogroup frequencies were compared between HBV infected patients, HCs and SRs. Haplogroup D5 presented a higher frequency in CHBs than in HCs (P = 0.017, OR = 2.87, 95% confidence interval [CI] = (1.21-6.81)) and SRs (P = 0.049, OR = 2.90, 95% CI = 1.01-8.35). The network of haplogroup D5 revealed a distinct distribution pattern between CHBs and non-CHBs. A trend of higher viral load among CHBs with haplogroup D5 was observed. Our results indicate the risk potential of mtDNA haplogroup D5 in chronic HBV infection in Yunnan, China. PMID- 29343699 TI - Collagen-Binding Hepatocyte Growth Factor (HGF) alone or with a Gelatin- furfurylamine Hydrogel Enhances Functional Recovery in Mice after Spinal Cord Injury. AB - The treatment of spinal cord injury (SCI) is currently a significant challenge. Hepatocyte growth factor (HGF) is a multipotent neurotrophic and neuroregenerative factor that can be beneficial for the treatment of SCI. However, immobilized HGF targeted to extracellular matrix may be more effective than diffusible, unmodified HGF. In this study, we evaluated the neurorestorative effects of an engineered HGF with a collagen biding domain (CBD-HGF). CBD-HGF remained in the spinal cord for 7 days after a single administration, while unmodified HGF was barely seen at 1 day. When a gelatin-furfurylamine (FA) hydrogel was applied on damaged spinal cord as a scaffold, CBD-HGF was retained in gelatin-FA hydrogel for 7 days, whereas HGF had faded by 1 day. A single administration of CBD-HGF enhanced recovery from spinal cord compression injury compared with HGF, as determined by motor recovery, and electrophysiological and immunohistochemical analyses. CBD-HGF alone failed to improve recovery from a complete transection injury, however CBD-HGF combined with gelatin-FA hydrogel promoted endogenous repair and recovery more effectively than HGF with hydrogel. These results suggest that engineered CBD-HGF has superior therapeutic effects than naive HGF. CBD-HGF combined with hydrogel scaffold may be promising for the treatment of serious SCI. PMID- 29343700 TI - Full-field thermal imaging of quasiballistic crosstalk reduction in nanoscale devices. AB - Understanding nanoscale thermal transport is of substantial importance for designing contemporary semiconductor technologies. Heat removal from small sources is well established to be severely impeded compared to diffusive predictions due to the ballistic nature of the dominant heat carriers. Experimental observations are commonly interpreted through a reduction of effective thermal conductivity, even though most measurements only probe a single aggregate thermal metric. Here, we employ thermoreflectance thermal imaging to directly visualise the 2D temperature field produced by localised heat sources on InGaAs with characteristic widths down to 100 nm. Besides displaying effective thermal performance reductions up to 50% at the active junctions in agreement with prior studies, our steady-state thermal images reveal that, remarkably, 1-3 MUm adjacent to submicron devices the crosstalk is actually reduced by up to fourfold. Submicrosecond transient imaging additionally shows responses to be faster than conventionally predicted. A possible explanation based on hydrodynamic heat transport, and some open questions, are discussed. PMID- 29343701 TI - Alanine mutation of the catalytic sites of Pantothenate Synthetase causes distinct conformational changes in the ATP binding region. AB - The enzyme Pantothenate synthetase (PS) represents a potential drug target in Mycobacterium tuberculosis. Its X-ray crystallographic structure has demonstrated the significance and importance of conserved active site residues including His44, His47, Asn69, Gln72, Lys160 and Gln164 in substrate binding and formation of pantoyl adenylate intermediate. In the current study, molecular mechanism of decreased affinity of the enzyme for ATP caused by alanine mutations was investigated using molecular dynamics (MD) simulations and free energy calculations. A total of seven systems including wild-type + ATP, H44A + ATP, H47A + ATP, N69A + ATP, Q72A + ATP, K160A + ATP and Q164A + ATP were subjected to 50 ns MD simulations. Docking score, MM-GBSA and interaction profile analysis showed weak interactions between ATP (substrate) and PS (enzyme) in H47A and H160A mutants as compared to wild-type, leading to reduced protein catalytic activity. However, principal component analysis (PCA) and free energy landscape (FEL) analysis revealed that ATP was strongly bound to the catalytic core of the wild-type, limiting its movement to form a stable complex as compared to mutants. The study will give insight about ATP binding to the PS at the atomic level and will facilitate in designing of non-reactive analogue of pantoyl adenylate which will act as a specific inhibitor for PS. PMID- 29343702 TI - Analysis of mitochondrial function in human induced pluripotent stem cells from patients with mitochondrial diabetes due to the A3243G mutation. AB - We previously established human induced pluripotent stem (iPS) cells in two diabetic patients from different families with the mitochondrial A3243G mutation and isolated isogenic iPS cell clones with either undetectable or high levels of the mutation in both patients. In the present study, we analyzed the mitochondrial functions of two mutation-undetectable and two mutation-high clones in each patient through four methods to assess complex I activity, mitochondrial membrane potential, mitochondrial respiration, and mitochondrial ATP production. In the first patient, complex I activity, mitochondrial respiration, and mitochondrial ATP production were decreased in the mutation-high clones compared with the mutation-undetectable clones, and mitochondrial membrane potential was decreased in a mutation-high clone compared with a mutation-undetectable clone. In the second patient, complex I activity was decreased in one mutation-high clone compared with the other clones. The other parameters showed no differences in any clones. In addition, the complex I activity and mitochondrial respiration of the mutation-undetectable clones from both patients were located in the range of those of iPS cells from healthy subjects. The present study suggests that the mitochondrial function of the mutation-undetectable iPS cell clones obtained from two patients with the A3243G mutation is comparable to the control iPS cells. PMID- 29343703 TI - A novel microRNA, hsa-miR-6852 differentially regulated by Interleukin-27 induces necrosis in cervical cancer cells by downregulating the FoxM1 expression. AB - We have previously demonstrated that Interleukin-27 differentially regulates the expression of seven novel microRNAs. Here we elucidate the functional significance of these novel microRNAs. Of the seven microRNAs, over expression of miRNA-6852 (miR-SX4) mimic induces cell cycle arrest at G2/M phase and induces necrosis in HEK293 and panel of cervical cancer cells (Human Papilloma Virus (HPV) infected cell lines; HeLa, CaSki and SiHa cells). To define the mechanism of the miR-SX4-mediated G2/M arrest, a microarray gene chip array and western blot analysis were performed. FoxM1, a transcription factor is identified as a key protein down-regulated by miR-SX4, even though the miR-SX4 does not target 3'UTR of FoxM1. Knock down of FoxM1 using si-RNA demonstrate that FoxM1 silenced cell induces G2/M cell cycle arrest and necrosis. Our data demonstrated for the first time that miR-SX4 could be a potent anti-cancer microRNA. PMID- 29343704 TI - Phosphorylation induced cochaperone unfolding promotes kinase recruitment and client class-specific Hsp90 phosphorylation. AB - During the Hsp90-mediated chaperoning of protein kinases, the core components of the machinery, Hsp90 and the cochaperone Cdc37, recycle between different phosphorylation states that regulate progression of the chaperone cycle. We show that Cdc37 phosphorylation at Y298 results in partial unfolding of the C-terminal domain and the population of folding intermediates. Unfolding facilitates Hsp90 phosphorylation at Y197 by unmasking a phosphopeptide sequence, which serves as a docking site to recruit non-receptor tyrosine kinases to the chaperone complex via their SH2 domains. In turn, Hsp90 phosphorylation at Y197 specifically regulates its interaction with Cdc37 and thus affects the chaperoning of only protein kinase clients. In summary, we find that by providing client class specificity, Hsp90 cochaperones such as Cdc37 do not merely assist in client recruitment but also shape the post-translational modification landscape of Hsp90 in a client class-specific manner. PMID- 29343705 TI - Nanoscale Structural Modulation and Low-temperature Magnetic Response in Mixed layer Aurivillius-type Oxides. AB - Nanoscale structural modulation with different layer numbers in layer-structured complex oxides of the binary Bi4Ti3O12-BiFeO3 system can give rise to intriguing phenomena and extraordinary properties, originating from the correlated interfaces of two different phases with different strain states. In this work, we studied the nanoscale structural modulation induced by Co-substitution in the Aurivillius-type oxide of Bi11Fe3Ti6O33 with a unique and naturally occurred mixed-layer structure. Nanoscale structural evolution via doping occurred from the phase-modulated structure composed of 4- and 5-layer phases to a homogeneous 4-layer structure was clearly observed utilizing x-ray diffraction and electron micro-techniques. Significantly, magnetic response for the samples under various temperatures was recorded and larger magnetic coercive fields (e.g. H c ~ 10 kOe at 50 K) were found in the phase-modulated samples. Analyses of the x-ray absorption spectra and magnetic response confirmed that the low-temperature magnetic behaviour should be intrinsic to the phase-modulated structure inside the structural transformation region, mainly arising from structural distortions at the correlated interfaces. PMID- 29343706 TI - Caloric restriction lowers endocannabinoid tonus and improves cardiac function in type 2 diabetes. AB - BACKGROUND/OBJECTIVES: Endocannabinoids (ECs) are associated with obesity and ectopic fat accumulation, both of which play a role in the development of cardiovascular disease (CVD) in type 2 diabetes (T2D). The effect of prolonged caloric restriction on ECs in relation to fat distribution and cardiac function is still unknown. Therefore, our aim was to investigate this relationship in obese T2D patients with coronary artery disease (CAD). SUBJECTS/METHODS: In a prospective intervention study, obese T2D patients with CAD (n = 27) followed a 16 week very low calorie diet (VLCD; 450-1000 kcal/day). Cardiac function and fat accumulation were assessed with MRI and spectroscopy. Plasma levels of lipid species, including ECs, were measured using liquid chromatography-mass spectrometry. RESULTS: VLCD decreased plasma levels of virtually all measured lipid species of the class of N-acylethanolamines including the EC anandamide (AEA; -15%, p = 0.016), without decreasing monoacylglycerols including the EC 2 arachidonoylglycerol (2-AG). Baseline plasma AEA levels strongly correlated with the volume of subcutaneous white adipose tissue (SAT; R2 = 0.44, p < 0.001). VLCD decreased the volume of SAT (-53%, p < 0.001), visceral white adipose tissue (VAT) (-52%, p < 0.001), epicardial white adipose tissue (-15%, p < 0.001) and paracardial white adipose tissue (-28%, p < 0.001). VLCD also decreased hepatic ( 86%, p < 0.001) and myocardial (-33%, p < 0.001) fat content. These effects were accompanied by an increased left ventricular ejection fraction (54.8 +/- 8.7-56.2 +/- 7.9%, p = 0.016). CONCLUSIONS: Caloric restriction in T2D patients with CAD decreases AEA levels, but not 2-AG levels, which is paralleled by decreased lipid accumulation in adipose tissue, liver and heart, and improved cardiovascular function. Interestingly, baseline AEA levels strongly correlated with SAT volume. We anticipate that dietary interventions are worthwhile strategies in advanced T2D, and that reduction in AEA may contribute to the improved cardiometabolic phenotype induced by weight loss. PMID- 29343707 TI - Sensory neuronal P2RX4 receptors controls BDNF signaling in inflammatory pain. AB - Chronic inflammatory and neuropathic pains are major public health concerns. Potential therapeutic targets include the ATP-gated purinergic receptors (P2RX) that contribute to these pathological types of pain in several different cell types. The purinergic receptors P2RX2 and P2RX3 are expressed by a specific subset of dorsal root ganglion neurons and directly shape pain processing by primary afferents. In contrast the P2RX4 and P2RX7 are mostly expressed in myeloid cells, where activation of these receptors triggers the release of various pro-inflammatory molecules. Here, we demonstrate that P2RX4 also controls calcium influx in mouse dorsal root ganglion neurons. P2RX4 is up-regulated in pain-processing neurons during long lasting peripheral inflammation and it co localizes with Brain-Derived Neurotrophic Factor (BDNF). In the dorsal horn of the spinal cord, BDNF-dependent signaling pathways, phosphorylation of Erk1/2 and of the GluN1 subunit as well as the down regulation of the co-transporter KCC2, which are triggered by peripheral inflammation are impaired in P2RX4-deficient mice. Our results suggest that P2RX4, expressed by sensory neurons, controls neuronal BDNF release that contributes to hyper-excitability during chronic inflammatory pain and establish P2RX4 in sensory neurons as a new potential therapeutic target to treat hyperexcitability during chronic inflammatory pain. PMID- 29343708 TI - Pteropods counter mechanical damage and dissolution through extensive shell repair. AB - The dissolution of the delicate shells of sea butterflies, or pteropods, has epitomised discussions regarding ecosystem vulnerability to ocean acidification over the last decade. However, a recent demonstration that the organic coating of the shell, the periostracum, is effective in inhibiting dissolution suggests that pteropod shells may not be as susceptible to ocean acidification as previously thought. Here we use micro-CT technology to show how, despite losing the entire thickness of the original shell in localised areas, specimens of polar species Limacina helicina maintain shell integrity by thickening the inner shell wall. One specimen collected within Fram Strait with a history of mechanical and dissolution damage generated four times the thickness of the original shell in repair material. The ability of pteropods to repair and maintain their shells, despite progressive loss, demonstrates a further resilience of these organisms to ocean acidification but at a likely metabolic cost. PMID- 29343709 TI - Experimental and Numerical Investigation on Dragonfly Wing and Body Motion during Voluntary Take-off. AB - We present a detailed analysis of the voluntary take-off procedure of a dragonfly. The motions of the body and wings are recorded using two high-speed cameras at Beihang University. The experimental results show that the dragonfly becomes airborne after approximately one wingbeat and then leaves the ground. During this process, the maximum vertical acceleration could reach 20 m/s2. Evidence also shows that acceleration is generated only by the aerodynamic force induced by the flapping of wings. The dragonfly voluntary take-off procedure is divided into four phases with distinctive features. The variation in phase difference between the forewing and hindwing and angle of attack in the down stroke are calculated to explain the different features of the four phases. In terms of the key parameters of flapping, the phase difference increases from approximately 0 to 110 degrees; the angle of attack in down-stroke reaches the maximum at first and then decreases in the following take-off procedure. Due to experimental limitations, 2-D simulations are conducted using the immersed boundary method. The results indicate that the phase difference and the angle of attack are highly correlated with the unsteady fluid field around the dragonfly's wings and body, which determines the generation of aerodynamic forces. PMID- 29343711 TI - Silver Nanoparticles in the Water Environment in Malaysia: Inspection, characterization, removal, modeling, and future perspective. AB - The current status of silver nanoparticles (AgNPs) in the water environment in Malaysia was examined and reported. For inspection, two rivers and two sewage treatment plants (STPs) were selected. Two activated carbons derived from oil palm (ACfOPS) and coconut (ACfCS) shells were proposed as the adsorbent to remove AgNPs. It was found that the concentrations of AgNPs in the rivers and STPs are in the ranges of 0.13 to 10.16 mg L-1 and 0.13 to 20.02 mg L-1, respectively, with the highest concentration measured in July. ACfOPS and ACfCS removed up to 99.6 and 99.9% of AgNPs, respectively, from the water. The interaction mechanism between AgNPs and the activated carbon surface employed in this work was mainly the electrostatic force interaction via binding Ag+ with O- presented in the activated carbon to form AgO. Fifteen kinetic models were compared statistically to describe the removal of AgNPs. It was found that the experimental adsorption data can be best described using the mixed 1,2-order model. Therefore, this model has the potential to be a candidate for a general model to describe AgNPs adsorption using numerous materials, its validation of which has been confirmed with other material data from previous works. PMID- 29343710 TI - Phenotypic diversity identified by cardiac magnetic resonance in a large hypertrophic cardiomyopathy family with a single MYH7 mutation. AB - Limited data is available on phenotypic variations with the same genotype in hypertrophic cardiomyopathy (HCM). The present study aims to explore the relationship between genotype and phenotype characterized by cardiovascular magnetic resonance (CMR) in a large Chinese family. A proband diagnosed with HCM from a multigenerational family underwent next-generation sequencing based on a custom sureSelect panel, including 117 candidate pathogenic genes associated with cardiomyopathies. All genetic results were confirmed by the Sanger sequencing method. All confirmed mutation carriers underwent CMR exam and myocardial tissue characterization using T1 mapping and late gadolinium enhancement (LGE) on a 3T scanner (Siemens Trio, Gemany). After clinical and genetic screening of 36 (including the proband) members of a large Chinese family, nineteen family members are determined to carry the single p.T1377M (c.4130C>T) mutation in the MYH7 gene. Of these 19 mutation carriers, eight are diagnosed with HCM, one was considered as borderline affected and ten are not clinically or phenotypically affected. Different HCM phenotypes are present in the nine affected individuals in this family. In addition, we have found different tissue characteristics assessed by T1 mapping and LGE in these individuals. We describe a family that demonstrates the diverse HCM phenotypes associated with a single MYH7 mutation. PMID- 29343713 TI - Atmospheric CO2 effect on stable carbon isotope composition of terrestrial fossil archives. AB - The 13C/12C ratio of C3 plant matter is thought to be controlled by the isotopic composition of atmospheric CO2 and stomatal response to environmental conditions, particularly mean annual precipitation (MAP). The effect of CO2 concentration on 13C/12C ratios is currently debated, yet crucial to reconstructing ancient environments and quantifying the carbon cycle. Here we compare high-resolution ice core measurements of atmospheric CO2 with fossil plant and faunal isotope records. We show the effect of pCO2 during the last deglaciation is stronger for gymnosperms (-1.4 +/- 1.20/00) than angiosperms/fauna (-0.5 +/- 1.50/00), while the contributions from changing MAP are -0.3 +/- 0.60/00 and -0.4 +/- 0.40/00, respectively. Previous studies have assumed that plant 13C/12C ratios are mostly determined by MAP, an assumption which is sometimes incorrect in geological time. Atmospheric effects must be taken into account when interpreting terrestrial stable carbon isotopes, with important implications for past environments and climates, and understanding plant responses to climate change. PMID- 29343712 TI - Zika virus infection in pregnant rhesus macaques causes placental dysfunction and immunopathology. AB - Zika virus (ZIKV) infection during pregnancy leads to an increased risk of fetal growth restriction and fetal central nervous system malformations, which are outcomes broadly referred to as the Congenital Zika Syndrome (CZS). Here we infect pregnant rhesus macaques and investigate the impact of persistent ZIKV infection on uteroplacental pathology, blood flow, and fetal growth and development. Despite seemingly normal fetal growth and persistent fetal-placenta maternal infection, advanced non-invasive in vivo imaging studies reveal dramatic effects on placental oxygen reserve accompanied by significantly decreased oxygen permeability of the placental villi. The observation of abnormal oxygen transport within the placenta appears to be a consequence of uterine vasculitis and placental villous damage in ZIKV cases. In addition, we demonstrate a robust maternal-placental-fetal inflammatory response following ZIKV infection. This animal model reveals a potential relationship between ZIKV infection and uteroplacental pathology that appears to affect oxygen delivery to the fetus during development. PMID- 29343714 TI - Endothelial nitric oxide synthase overexpressing human early outgrowth cells inhibit coronary artery smooth muscle cell migration through paracrine functions. AB - Cells mobilized from the bone marrow can contribute to endothelial regeneration and repair. Nevertheless, cardiovascular diseases are associated with diminished numbers and function of these cells, attenuating their healing potential. Gene transfer of endothelial nitric oxide synthase (eNOS) can restore the activity of circulating cells. Furthermore, estrogen accelerates the reendothelialization capacity of early outgrowth cells (EOCs). We hypothesized that overexpressing eNOS alone or in combination with estrogen stimulation in EOCs would potentiate the beneficial effects of these cells in regulating smooth muscle cell (SMC) function. Native human EOCs did not have any effect on human coronary artery SMC (hCASMC) proliferation or migration. Transfecting EOCs with a human eNOS plasmid and/or stimulating with 17beta-estradiol (E2) increased NO production 3-fold and enhanced EOC survival. Moreover, in co-culture studies, eNOS overexpressing or E2 stimulated EOCs reduced hCASMC migration (by 23% and 56% respectively), vs. control EOCs. These effects do not implicate ERK1/2 or focal adhesion kinases. Nevertheless, NOS-EOCs had no effect on hCASMC proliferation. These results suggest that overexpressing or activating eNOS in EOCs increases their survival and enhances their capacity to regulate SMC migration through paracrine effects. These data elucidate how eNOS overexpression or activation in EOCs can prevent vascular remodeling. PMID- 29343715 TI - Effects of straw application on nitrate leaching in fields in the Yellow River irrigation zone of Ningxia, China. AB - A five-year field experiment was conducted to investigate the effects of straw application on nitrate leaching loss. Treatments included soil that was not treated (control), soil treated with straw at a low rate (4,500 kg ha-2, T1) and soil treated with straw at a high rate (9,000 kg ha-2, T2). Nitrate-nitrogen leaching in the 10, 20, 30, 60, and 90 cm soil layers was measured using the resin-core method. The results indicated that straw application could reduce soil nitrate leaching losses in the 0-30 cm layer. In this layer, the nitrate leaching values for T1 (13.76 kg ha-2) and T2 (13.74 kg ha-2) were both significantly lower than those of the control (15.76 kg ha-2) (P < 0.05); the soil nitrate leaching losses decreased by 12.71% and 12.84% for those two treatments, respectively. However, no significant differences in losses were observed (P > 0.05) between T1 and T2. The effects of straw application were apparent only in the ploughing layer (30 cm-depth soil layer). In the deeper layers (60 and 90 cm), no significant differences were observed between the treatments and the control, and the same results were observed in the topsoil layers (10 and 20 cm). PMID- 29343716 TI - Expression of the methionine sulfoxide reductase lost during evolution extends Drosophila lifespan in a methionine-dependent manner. AB - Accumulation of oxidized amino acids, including methionine, has been implicated in aging. The ability to reduce one of the products of methionine oxidation, free methionine-R-sulfoxide (Met-R-SO), is widespread in microorganisms, but during evolution this function, conferred by the enzyme fRMsr, was lost in metazoa. We examined whether restoration of the fRMsr function in an animal can alleviate the consequences of methionine oxidation. Ectopic expression of yeast fRMsr supported the ability of Drosophila to catalyze free Met-R-SO reduction without affecting fecundity, food consumption, and response to starvation. fRMsr expression also increased resistance to oxidative stress. Moreover, it extended lifespan of flies in a methionine-dependent manner. Thus, expression of an oxidoreductase lost during evolution can enhance metabolic and redox functions and lead to an increase in lifespan in an animal model. More broadly, our study exposes the potential of a combination of genetic and nutritional strategies in lifespan control. PMID- 29343717 TI - The role of NFkappaB in spheroid formation of human breast cancer cells cultured on the Random Positioning Machine. AB - Human MCF-7 breast cancer cells were exposed to a Random Positioning Machine (RPM). After 24 hours (h) the cells grew either adherently within a monolayer (AD) or within multicellular spheroids (MCS). AD and MCS populations were separately harvested, their cellular differences were determined performing qPCR on genes, which were differently expressed in AD and MCS cells. Gene array technology was applied to detect RPM-sensitive genes in MCF-7 cells after 24 h. Furthermore, the capability to form multicellular spheroids in vitro was compared with the intracellular distribution of NF-kappaB (NFkappaB) p65. NFkappaB was equally distributed in static control cells, but predominantly localized in the cytoplasm in AD cells and nucleus in MCS cells exposed to the RPM. Gene array analyses revealed a more than 2-fold change of only 23 genes including some whose products are affected by oxygen levels or regulate glycolysis. Significant upregulations of the mRNAs of enzymes degrading heme, of ANXA1, ANXA2, CTGF, CAV2 and ICAM1, as well as of FAS, Casp8, BAX, p53, CYC1 and PARP1 were observed in MCS cells as compared with 1g-control and AD cells. An interaction analysis of 47 investigated genes suggested that HMOX-1 and NFkappaB variants are activated, when multicellular spheroids are formed. PMID- 29343718 TI - The bacterial Type III toxin-antitoxin system, ToxIN, is a dynamic protein-RNA complex with stability-dependent antiviral abortive infection activity. AB - Bacteria have evolved numerous defense systems to protect themselves from viral (bacteriophage) infection. The ToxIN system of Pectobacterium atrosepticum is a Type III toxin-antitoxin complex and "altruistic suicide" anti-phage system, which kills phage-infected cells through the release of a ribonuclease toxin, ToxN. ToxN is counteracted by a co-transcribed antitoxic RNA pseudoknot, ToxI, which self-assembles with ToxN into an inactive 3 ToxI:3 ToxN complex in vitro. However it is not known whether this complex is predominant in vivo, or how the complex is disassembled following infection to trigger a lethal, "altruistic" response. In this study, we characterise ToxI turnover and folding, and explore the link between complex stability and anti-phage activity, with a view to understanding events that lead to ToxN-mediated suicide following phage infection. We present evidence that ToxN constantly cleaves fresh ToxI in vivo rather than staying associated with pre-processed antitoxin, and that the ToxI antitoxin can partially fold spontaneously using conserved nucleotides. We also show that reducing the stability of the ToxIN complex can increase the strength of the antiviral response in a phage-dependent manner. Based on this information, we propose a revised model for ToxN inhibition, complex assembly and activation by infecting bacteriophage. PMID- 29343719 TI - The Significant Role of c-Abl Kinase in Barrier Altering Agonists-mediated Cytoskeletal Biomechanics. AB - Exploration of human pulmonary artery endothelial cell (EC) as a prototypical biomechanical system has important pathophysiologic relevance because this cell type plays a key role in the development of a wide variety of clinical conditions. The complex hierarchical organization ranging from the molecular scale up to the cellular level has an intimate and intricate relationship to the barrier function between lung tissue and blood. To understand the innate molecule cell-tissue relationship across varied length-scales, the functional role of c Abl kinase in the cytoskeletal nano-biomechanics of ECs in response to barrier altering agonists was investigated using atomic force microscopy. Concurrently, the spatially specific arrangement of cytoskeleton structure and dynamic distribution of critical proteins were examined using scanning electron microscopy and immunofluorescence. Reduction in c-Abl expression by siRNA attenuates both thrombin- and sphingosine 1-phosphate (S1P)-mediated structural changes in ECs, specifically spatially-defined changes in elastic modulus and distribution of critical proteins. These results indicate that c-Abl kinase is an important determinant of cortical actin-based cytoskeletal rearrangement. Our findings directly bridge the gap between kinase activity, structural complexity, and functional connectivity across varied length-scales, and suggest that manipulation of c-Abl kinase activity may be a potential target for the treatment of pulmonary barrier disorders. PMID- 29343720 TI - Associations between VDR Gene Polymorphisms and Osteoporosis Risk and Bone Mineral Density in Postmenopausal Women: A systematic review and Meta-Analysis. AB - Results on the relationships between vitamin D receptor (VDR) gene polymorphisms and postmenopausal osteoporosis (PMOP) susceptibility and bone mineral density (BMD) are conflicting. The aim of the study is to identify more eligible studies that calculated pooled OR and WMD with 95% CI to assess their associations. Overall, there were significant correlations between VDR ApaI, VDR FokI and PMOP susceptibility. Subgroup analysis showed that VDR ApaI polymorphism significantly decreased the osteoporosis risk in Caucasian postmenopausal women. In Asian populations, VDR BsmI and VDR FokI were associated with an increased risk of PMOP. As to the associations between VDR polymorphisms and BMD, Caucasian PMOP women carrying the ApaI aa genotype were at risk of high BMD in femoral neck, and low femoral neck BMD was observed in Caucasian PMOP women with FokI Ff genotype. PMOP women with the Cdx2 GA genotype had a lower lumbar spine BMD in overall and Caucasian populations compared with PMOP women with GG genotype. Different VDR gene polymorphisms have different impacts on PMOP risk and BMD. PMID- 29343721 TI - ?133p53 isoform promotes tumour invasion and metastasis via interleukin-6 activation of JAK-STAT and RhoA-ROCK signalling. AB - ?122p53 mice (a model of ?133p53 isoform) are tumour-prone, have extensive inflammation and elevated serum IL-6. To investigate the role of IL-6 we crossed ?122p53 mice with IL-6 null mice. Here we show that loss of IL-6 reduced JAK-STAT signalling, tumour incidence and metastasis. We also show that ?122p53 activates RhoA-ROCK signalling leading to tumour cell invasion, which is IL-6-dependent and can be reduced by inhibition of JAK-STAT and RhoA-ROCK pathways. Similarly, we show that Delta133p53 activates these pathways, resulting in invasive and migratory phenotypes in colorectal cancer cells. Gene expression analysis of colorectal tumours showed enrichment of GPCR signalling associated with ?133TP53 mRNA. Patients with elevated ?133TP53 mRNA levels had a shorter disease-free survival. Our results suggest that ?133p53 promotes tumour invasion by activation of the JAK-STAT and RhoA-ROCK pathways, and that patients whose tumours have high ?133TP53 may benefit from therapies targeting these pathways. PMID- 29343722 TI - Multiplex glycan bead array for high throughput and high content analyses of glycan binding proteins. AB - Glycan-binding proteins (GBPs) play critical roles in diverse cellular functions such as cell adhesion, signal transduction and immune response. Studies of the interaction between GBPs and glycans have been hampered by the availability of high throughput and high-content technologies. Here we report multiplex glycan bead array (MGBA) that allows simultaneous analyses of 384 samples and up to 500 glycans in a single assay. The specificity, sensitivity and reproducibility of MGBA are evaluated using 39 plant lectins, 13 recombinant anti-glycan antibodies, and mammalian GBPs. We demonstrate the utility of this platform by the analyses of natural anti-glycan IgM and IgG antibodies in 961 human serum samples and the discovery of anti-glycan antibody biomarkers for ovarian cancer. Our data indicate that the MGBA platform is particularly suited for large population-based studies that require the analyses of large numbers of samples and glycans. PMID- 29343723 TI - Pharmacological targeting of BET proteins attenuates radiation-induced lung fibrosis. AB - Radiation-induced lung injury has restricted radiotherapy for thoracic cancer. The purpose of this study was to investigate the radioprotective effects of bromodomain and extra terminal (BET) inhibitor JQ1 in a murine model of pulmonary damage. Chest computed tomography (CT) was performed in a rat model after 20 Gy radiation of the right thorax. And histological evaluation and protein expressions of irradiated tissue were analyzed to confirm the potential anti fibrosis effect of JQ1 and its underlying mechanisms. Moreover, colony formation assays were used to explore the effects of JQ1 on esophageal cancer Eca109 and breast cancer MCF7. JQ1 attenuated radiologic and histologic presentations of radiation-induced fibrosis, inflammatory reaction and pulmonary structural changes and the increase of Hounsfield units (HU) density and hydroxyproline content after radiation. Additionally, JQ1 suppressed BRD4, c-MYC, Collagen I, TGF-beta, p-NF-kappaB p65, p-Smad2 and p-Smad3 expressions after irradiation, repressed proliferation and transdifferentiation of lung fibroblasts, and impaired clonogenic survival of thoracic cancer cells. Collectively, our study demonstrated for the first time that BET Bromodomain inhibitor JQ1 protected normal lung tissue after radiation, and exerted a radiosensitizing effect in thoracic cancer cells. PMID- 29343724 TI - The UV filtering potential of drop-casted layers of frustules of three diatom species. AB - Diatoms are in focus as biological materials for a range of photonic applications. Many of these applications would require embedding a multitude of diatoms in a matrix (e.g. paint, creme or lacquer); however, most studies on the photonic and spectral properties of diatoms frustules (silica walls) have been carried out on single cells. In this study, for the first time, we test the spectral properties of layers of frustules of three diatom species (Coscinodiscus granii, Thalassiosira punctifera and Thalassiosira pseudonana), with special focus on transmission and reflectance in the UV range. The transmittance efficiency in the UV A and B range was: T. pseudonana (56-59%) >C. granii (53 54%) >T. punctifera (18-21%) for the rinsed frustules. To investigate the underlying cause of these differences, we performed X-ray scattering analysis, measurement of layer thickness and microscopic determination of frustule nanostructures. We further tested dried intact cells in the same experimental setup. Based on these data we discuss the relative importance of crystal structure properties, nanostructure and quantity of material on the spectral properties of diatom layers. Characterization of the UV protection performance of layers of diatom frustules is of central relevance for their potential use as innovative bio-based UV filters. PMID- 29343726 TI - Remarkably High Hole Mobility Metal-Oxide Thin-Film Transistors. AB - High performance p-type thin-film transistor (p-TFT) was realized by a simple process of reactive sputtering from a tin (Sn) target under oxygen ambient, where remarkably high field-effect mobility (MU FE ) of 7.6 cm2/Vs, 140 mV/dec subthreshold slope, and 3 * 104 on-current/off-current were measured. In sharp contrast, the SnO formed by direct sputtering from a SnO target showed much degraded MU FE , because of the limited low process temperature of SnO and sputtering damage. From the first principle quantum-mechanical calculation, the high hole MU FE of SnO p-TFT is due to its considerably unique merit of the small effective mass and single hole band without the heavy hole band. The high performance p-TFTs are the enabling technology for future ultra-low-power complementary-logic circuits on display and three-dimensional brain-mimicking integrated circuits. PMID- 29343725 TI - The phosphatase PPM1A controls monocyte-to-macrophage differentiation. AB - Differentiation of circulating monocytes into tissue-bound or tissue-resident macrophages is a critical regulatory process affecting host defense and inflammation. However, the regulatory signaling pathways that control the differentiation of monocytes into specific and distinct functional macrophage subsets are poorly understood. Herein, we demonstrate that monocyte-to-macrophage differentiation is controlled by the Protein Phosphatase, Mg2+/Mn2+-dependent 1A (PPM1A). Genetic manipulation experiments demonstrated that overexpression of PPM1A attenuated the macrophage differentiation program, while knockdown of PPM1A expression accelerated the ability of monocytes to differentiate into macrophages. We identify imiquimod and Pam3CSK4 as two Toll-like receptor agonists that induce PPM1A expression, and show that increased expression of PPM1A at the onset of differentiation impairs cellular adherence, reduces expression of inflammatory (M1) macrophage-specific markers, and inhibits the production of inflammatory cytokines. Our findings reveal PPM1A as a negative threshold regulator of M1-type monocyte-to-macrophage differentiation, establishing it as a key phosphatase that orchestrates this program. PMID- 29343727 TI - PredCRP: predicting and analysing the regulatory roles of CRP from its binding sites in Escherichia coli. AB - Cyclic AMP receptor protein (CRP), a global regulator in Escherichia coli, regulates more than 180 genes via two roles: activation and repression. Few methods are available for predicting the regulatory roles from the binding sites of transcription factors. This work proposes an accurate method PredCRP to derive an optimised model (named PredCRP-model) and a set of four interpretable rules (named PredCRP-ruleset) for predicting and analysing the regulatory roles of CRP from sequences of CRP-binding sites. A dataset consisting of 169 CRP-binding sites with regulatory roles strongly supported by evidence was compiled. The PredCRP-model, using 12 informative features of CRP-binding sites, and cooperating with a support vector machine achieved a training and test accuracy of 0.98 and 0.93, respectively. PredCRP-ruleset has two activation rules and two repression rules derived using the 12 features and the decision tree method C4.5. This work further screened and identified 23 previously unobserved regulatory interactions in Escherichia coli. Using quantitative PCR for validation, PredCRP model and PredCRP-ruleset achieved a test accuracy of 0.96 (=22/23) and 0.91 (=21/23), respectively. The proposed method is suitable for designing predictors for regulatory roles of all global regulators in Escherichia coli. PredCRP can be accessed at https://github.com/NctuICLab/PredCRP . PMID- 29343728 TI - Oxidation of SQSTM1/p62 mediates the link between redox state and protein homeostasis. AB - Cellular homoeostatic pathways such as macroautophagy (hereinafter autophagy) are regulated by basic mechanisms that are conserved throughout the eukaryotic kingdom. However, it remains poorly understood how these mechanisms further evolved in higher organisms. Here we describe a modification in the autophagy pathway in vertebrates, which promotes its activity in response to oxidative stress. We have identified two oxidation-sensitive cysteine residues in a prototypic autophagy receptor SQSTM1/p62, which allow activation of pro-survival autophagy in stress conditions. The Drosophila p62 homologue, Ref(2)P, lacks these oxidation-sensitive cysteine residues and their introduction into the protein increases protein turnover and stress resistance of flies, whereas perturbation of p62 oxidation in humans may result in age-related pathology. We propose that the redox-sensitivity of p62 may have evolved in vertebrates as a mechanism that allows activation of autophagy in response to oxidative stress to maintain cellular homoeostasis and increase cell survival. PMID- 29343730 TI - First estimates of Greenland shark (Somniosus microcephalus) local abundances in Arctic waters. AB - Baited remote underwater video cameras were deployed in the Eastern Canadian Arctic, for the purpose of estimating local densities of the long-lived Greenland shark within five deep-water, data-poor regions of interest for fisheries development and marine conservation in Nunavut, Canada. A total of 31 camera deployments occurred between July-September in 2015 and 2016 during joint exploratory fishing and scientific cruises. Greenland sharks appeared at 80% of deployments. A total of 142 individuals were identified and no individuals were observed in more than one deployment. Estimates of Greenland shark abundance and biomass were calculated from averaged times of first arrival, video-derived swimming speed and length data, and local current speed estimates. Density estimates varied 1-15 fold among regions; being highest in warmer (>0 degrees C), deeper areas and lowest in shallow, sub-zero temperature regions. These baited camera results illustrate the ubiquity of this elusive species and suggest that Nunavut's Lancaster Sound eco-zone may be of particular importance for Greenland shark, a potentially vulnerable Arctic species. PMID- 29343729 TI - Drug self-assembly for synthesis of highly-loaded antimicrobial drug-silica particles. AB - Antimicrobial drug release from biomaterials for orthopedic repair and dental restorations can prevent biofilm growth and caries formation. Carriers for drug incorporation would benefit from long-term drug storage, controlled release, and structural stability. Mesoporous silica, synthesized through a co-assembly of silica and surfactant template, is an ideal drug encapsulation scaffold that maintains structural integrity upon release. However, conventional loading of drug within meso-silica pores via concentration-gradient diffusion limits the overall payload, concentration uniformity, and drug release control. Herein we demonstrate the co-assembly of an antimicrobial drug (octenidine dihydrochloride, OCT), and silica, to form highly-loaded (35% wt.) OCT-silica nanocomposite spheres of 500 nm diameter. Drug release significantly outlasted conventional OCT loaded mesoporous silica, closely fit Higuchi models of diffusive release, and was visualized via electron microscopy. Extension of this concept to the broad collection of self-assembling drugs grants biomedical community a powerful tool for synthesizing drug-loaded inorganic nanomaterials from the bottom-up. PMID- 29343731 TI - Impact of tissue kinetic heterogeneity on PET quantification: case study with the L-[1-11C]leucine PET method for cerebral protein synthesis rates. AB - Functional quantification with PET is generally based on modeling that assumes tissue regions are kinetically homogeneous. Even in regions sufficiently small to approach homogeneity, spillover due to resolution limitations of PET scanners may introduce heterogeneous kinetics into measured data. Herein we consider effects of kinetic heterogeneity at the smallest volume accessible, the single image voxel. We used L-[1-11C]leucine PET and compared rates of cerebral protein synthesis (rCPS) estimated voxelwise with methods that do (Spectral Analysis Iterative Filter, SAIF) and do not (Basis Function Method, BFM) allow for kinetic heterogeneity. In high resolution PET data with good counting statistics BFM produced estimates of rCPS comparable to SAIF, but at lower computational cost; thus the simpler, less costly method can be applied. With poorer counting statistics (lower injected radiotracer doses), BFM estimates were more biased. In data smoothed to simulate lower resolution PET, BFM produced estimates of rCPS 9 14% higher than SAIF, overestimation consistent with applying a homogeneous tissue model to kinetically heterogeneous data. Hence with lower resolution data it is necessary to account for kinetic heterogeneity in the analysis. Kinetic heterogeneity may impact analyses of other tracers and scanning protocols differently; assessments should be made on a case by case basis. PMID- 29343732 TI - The neural correlates of the unified percept of alcohol-related craving: a fMRI and EEG study. AB - Alcohol addiction is accompanied by aberrant neural activity. Previously, task based fMRI and resting-state EEG studies have revealed that craving, a critical component of addiction, is linked to abnormal activity in cortical regions including the dorsal anterior cingulate cortex (dACC), nucleus accumbens (NAcc), posterior cingulate cortex (PCC) and pregenual anterior cingulate cortex (pgACC), etc. In this study, we combine these two imaging techniques to investigate a group of alcohol-addicted patients and provide convergent evidence for the neural correlates of craving not only in alcohol but substance abuse in general. We observe abnormal BOLD signal levels in the dACC, NAcc, pgACC, PCC, amygdala, and parahippocampus (PHC) in a cue-reactivity fMRI experiment. These findings are consistent with increased beta-band activity in the dACC and pgACC in resting state EEG. We further observe desynchronization characterized by decreased functional connectivity in cue-based fMRI and hypersynchronization characterized by increased functional connectivity between these regions in the theta frequency band. The results of our study show a consistent pattern of alcohol craving elicited by external cues and internal desires. Given the advantage of superior spatial and temporal resolution, we hypothesize a "central craving network" that integrates the different aspects of alcohol addiction into a unified percept. PMID- 29343734 TI - Cooper Pairing in A Doped 2D Antiferromagnet with Spin-Orbit Coupling. AB - We study the two-dimensional Hubbard model with the Rashba type spin-orbit coupling within and beyond the mean-field theory. The antiferromagnetic ground state for the model at half-filling and the Cooper pairing induced by antiferromagnetic spin fluctuations near half-filling are examined based on the random-phase approximation. We show that the antiferromagnetic order is suppressed and the magnetic susceptibility turns out to be anisotropic in the presence of the spin-orbit coupling. Energy spectrums of transverse spin fluctuations are obtained and the effective interactions between holes mediated by antiferromagnetic spin fluctuations are deduced in the case of low hole doping. It seems that the spin-orbit coupling tends to form s+p-wave Cooper pairs, while the s+d-wave pairing is dominant when the spin-orbit coupling is absent. PMID- 29343733 TI - Serum vitamin D levels and risk of prevalent tuberculosis, incident tuberculosis and tuberculin skin test conversion among prisoners. AB - Poor vitamin D status has been associated with tuberculosis (TB); whether poor status is cause or consequence of disease is uncertain. We conducted a case control study and two nested case-control studies to determine whether vitamin D levels were associated with active TB, tuberculin skin test (TST) conversion, and risk of progression to the active TB in prisoners in Brazil. In multivariable conditional logistic regression, subnormal vitamin D levels (OR, 3.77; 95% CI, 1.04-13.64) were more likely in prisoners with active TB. In contrast, vitamin D was not found to be a risk factor for either TST conversion (OR, 2.49; 95% CI, 0.64-9.66) or progression to active disease (OR, 0.59; 95% CI, 0.13-2.62). Black race (OR, 11.52; 95% CI, 2.01-63.36), less than 4 years of schooling (OR, 2.70; 95% CI, 0.90-8.16), cigarette smoking (OR, 0.23; 95% CI, 0.06-0.79) were identified as risk factors for TST conversion. Risk of progression to active TB was found to be associated with cigarette smoking (OR, 7.42; 95% CI, 1.23-44.70). Our findings in the prison population show that poor vitamin D status is more common in individuals with active TB, but is not a risk factor for acquisition of latent TB or progression to active TB. PMID- 29343735 TI - Increasing conversion efficiency of two-step photon up-conversion solar cell with a voltage booster hetero-interface. AB - Development of high-efficiency solar cells is one of the attractive challenges in renewable energy technologies. Photon up-conversion can reduce the transmission loss and is one of the promising concepts which improve conversion efficiency. Here we present an analysis of the conversion efficiency, which can be increased by up-conversion in a single-junction solar cell with a hetero-interface that boosts the output voltage. We confirm that an increase in the quasi-Fermi gap and substantial photocurrent generation result in a high conversion efficiency. PMID- 29343736 TI - Establishing a mental lexicon with cochlear implants: an ERP study with young children. AB - In the present study we explore the implications of acquiring language when relying mainly or exclusively on input from a cochlear implant (CI), a device providing auditory input to otherwise deaf individuals. We focus on the time course of semantic learning in children within the second year of implant use; a period that equals the auditory age of normal hearing children during which vocabulary emerges and extends dramatically. 32 young bilaterally implanted children saw pictures paired with either matching or non-matching auditory words. Their electroencephalographic responses were recorded after 12, 18 and 24 months of implant use, revealing a large dichotomy: Some children failed to show semantic processing throughout their second year of CI use, which fell in line with their poor language outcomes. The majority of children, though, demonstrated semantic processing in form of the so-called N400 effect already after 12 months of implant use, even when their language experience relied exclusively on the implant. This is slightly earlier than observed for normal hearing children of the same auditory age, suggesting that more mature cognitive faculties at the beginning of language acquisition lead to faster semantic learning. PMID- 29343737 TI - Moderate decline in select synaptic markers in the prefrontal cortex (BA9) of patients with Alzheimer's disease at various cognitive stages. AB - Synaptic loss, plaques and neurofibrillary tangles are viewed as hallmarks of Alzheimer's disease (AD). This study investigated synaptic markers in neocortical Brodmann area 9 (BA9) samples from 171 subjects with and without AD at different levels of cognitive impairment. The expression levels of vesicular glutamate transporters (VGLUT1&2), glutamate uptake site (EAAT2), post-synaptic density protein of 95 kD (PSD95), vesicular GABA/glycine transporter (VIAAT), somatostatin (som), synaptophysin and choline acetyl transferase (ChAT) were evaluated. VGLUT2 and EAAT2 were unaffected by dementia. The VGLUT1, PSD95, VIAAT, som, ChAT and synaptophysin expression levels significantly decreased as dementia progressed. The maximal decrease varied between 12% (synaptophysin) and 42% (som). VGLUT1 was more strongly correlated with dementia than all of the other markers (polyserial correlation = -0.41). Principal component analysis using these markers was unable to differentiate the CDR groups from one another. Therefore, the status of the major synaptic markers in BA9 does not seem to be linked to the cognitive status of AD patients. The findings of this study suggest that the loss of synaptic markers in BA9 is a late event that is only weakly related to AD dementia. PMID- 29343738 TI - Critical conditions for escape of a high-speed fullerene from a BNC nanobeam after collision. AB - For a resonator-based nano-balance, the capability of capturing a nanoparticle is essential for it to measure the mass of the particle. In the present study, a clamped-clamped nanobeam from a Boron-Nitride and Carbon (BNC) nanotube acts as the nano-balance, and a fullerene, e.g., C60, is chosen as the particle, and the capturing capability is quantitatively estimated by the minimal escape velocity (MEV) of the fullerene from the nanobeam after collision. When centrally colliding with the nanobeam, the escape of fullerene depends on both incidence of fullerene and temperature of the system. When the colliding in the Boron-Nitride (BN) area of the beam surface, the nanoball escapes easier than that at the carbon area. The MEV of the nanoball is lower at higher temperature. As the nanoball sometimes slides for a few pica-seconds on the beam surface before being bounced out, the nanoball can escape only when the beam surface can provide the nanoball enough kinetic energy to overcome the van der Waals interaction between them. The capturing capability of the nano-balance can, thus, be improved by reducing the initial kinetic energy of the system. PMID- 29343739 TI - Qualitative systematic review of barriers and facilitators to self-management of chronic obstructive pulmonary disease: views of patients and healthcare professionals. AB - Self-management interventions for chronic obstructive pulmonary disease (COPD) can improve quality of life, reduce hospital admissions, and improve symptoms. However, many factors impede engagement for patients and practitioners. Qualitative research, with its focus on subjective experience, can provide invaluable insights into such factors. Therefore, a systematic review and synthesis of qualitative evidence on COPD self-management from the perspective of patients, carers, and practitioners was conducted. Following a systematic search and screening, 31 studies were appraised and data extracted for analysis. This review found that patients can adapt to COPD; however, learning to self-manage is often a protracted process. Emotional needs are considerable; frustration, depression, and anxiety are common. In addition, patients can face an assortment of losses and limitations on their lifestyle and social interaction. Over time, COPD can consume their existence, reducing motivation. Support from family can prove vital, yet tinged with ambivalence and burden. Practitioners may not have sufficient time, resources, or appropriate skills or confidence to provide effective self-management support, particularly in regard to patients' psychosocial needs. This can compound patients' capability to engage in self management. For COPD self-management to be effective, patients' psychosocial needs must be prioritised alongside medication and exacerbation management. In addition, patients' personal beliefs regarding COPD and its management should be reviewed periodically to avoid problematic behaviours and enhance positive adaptions to the disease. Patients with COPD are not a homogenous group and no one intervention will prove effective for all. Finally, practitioners require greater education, training, and support to successfully assist patients. PMID- 29343740 TI - Modifiable lifestyle behaviors, but not a genetic risk score, associate with metabolic syndrome in evening chronotypes. AB - Evening chronotype associates with health complications possibly via lifestyle factors, while the contribution of genetics is unknown. The aim was to study the relative contributions of genetics, lifestyle, and circadian-related physiological characteristics in metabolic risk of evening chronotype. In order to capture a biological contribution to chronotype, a genetic-risk-score (GRS), comprised of 15 chronotype-related variants, was tested. Moreover, a wide range of behavioral and emotional eating factors was studied within the same population. Chronotype, lifestyle, and metabolic syndrome (MetS) outcomes were assessed (n = 2,126), in addition to genetics (n = 1,693) and rest-activity/wrist temperature rhythms (n = 100). Evening chronotype associated with MetS and insulin resistance (P < 0.05), and several lifestyle factors including poorer eating behaviors, lower physical activity and later sleep and wake times. We observed an association between higher evening GRS and evening chronotype (P < 0.05), but not with MetS. We propose a GRS as a tool to capture the biological component of the inter-individual differences in chronotype. Our data show that several modifiable factors such as sedentary lifestyle, difficulties in controlling the amount of food eaten, alcohol intake and later wake and bed times that characterized evening-types, may underlie chronotype-MetS relationship. Our findings provide insights into the development of strategies, particularly for evening chronotype. PMID- 29343742 TI - Highly effective and chemically stable surface enhanced Raman scattering substrates with flower-like 3D Ag-Au hetero-nanostructures. AB - We demonstrated flower-like 3D Ag-Au hetero-nanostructures on an indium tin oxide glass (ITO glass) for surface enhanced Raman scattering (SERS) applications. The flower-like 3D Ag nanostructures were obtained through electrodeposition with liquid crystalline soft template which is simple, controllable and cost effective. The flower-like 3D Ag-Au hetero-nanostructures were further fabricated by galvanic replacement reaction of gold (III) chloride trihydrate (HAuCl4.3H2O) solution and flower-like Ag. The flower-like Ag-Au hetero-nanostructure exhibited stronger SERS effects and better chemical stability compared with flower-like Ag nanostructure. The localized surface plasmon resonance (LSPR) spectra, field emission scanning electron microscope (FESEM) photos and Ag-Au ratios were studied which show that the surface morphology and shape of the flower-like Ag-Au hetero-nanostructure play significant roles in enhancing SERS. The flower-like 3D Ag-Au hetero-nanostructures fabricated by electrodeposition in liquid crystalline template and galvanic replacement reaction are simple, cheap, controllable and chemical stable. It is a good candidate for applications in SERS detection and imaging. PMID- 29343744 TI - Improved Linearity with Polarization Coulomb Field Scattering in AlGaN/GaN Heterostructure Field-Effect Transistors. AB - The single-tone power of the AlGaN/GaN heterostructure field-effect transistors (HFETs) with different gate widths was measured. A distinct improvement in device linearity was observed in the sample with a larger gate width. The analysis of the variation of the parasitic source access resistance showed that, as the gate bias is increased, the polarization Coulomb field scattering can offset the increased polar optical phonon scattering and improve the device linearity. This approach is shown to be effective in improving the device linearity of AlGaN/GaN HFETs. PMID- 29343743 TI - Expression and subcellular localisation of AID and APOBEC3 in adenoid and palatine tonsils. AB - Activation-induced cytidine deaminase (AID) and apolipoprotein B mRNA-editing catalytic polypeptide 3 (A3) family are cytidine deaminases that play critical roles in B-cell maturation, antiviral immunity and carcinogenesis. Adenoids and palatine tonsils are secondary lymphoid immune organs, in which AID and A3s are thought to have several physiological or pathological roles. However, the expression of AID or A3s in these organs has not been investigated. Therefore, we investigated the expression profiles of AID and A3s, using 67 samples of adenoids and palatine tonsils from patients, with reverse transcription quantitative polymerase chain reaction (RT-qPCR) and immunohistochemical analyses. AID and A3s expression levels in the adenoids and the palatine tonsils of the same individual significantly correlated with each other. Of note, AID expression level in the adenoids negatively correlated with the age (r = -0.373, P = 0.003). The younger group with adenoid vegetation and tonsillar hypertrophy showed more abundant AID expression than the older group with recurrent tonsillitis and peritonsillar abscesses (P = 0.026). Moreover, immunohistochemical analysis revealed the distribution of AID and A3s in the epithelial cells as well as germinal centres. The localisation of AID expression and its relation to age may contribute to adenoid vegetation and inflammation. PMID- 29343745 TI - Malaria infected red blood cells release small regulatory RNAs through extracellular vesicles. AB - The parasite Plasmodium falciparum causes the most severe form of malaria. Cell communication between parasites is an important mechanism to control population density and differentiation. The infected red blood cells (iRBCs) release small extracellular vesicles (EVs) that transfer cargoes between cells. The EVs synchronize the differentiation of the asexual parasites into gametocytes to initiate the transmission to the mosquito. Beside their role in parasite communication, EVs regulate vascular function. So far, the exact cargoes responsible for cellular communication remain unknown. We isolated EVs from cultured iRBCs to determine their small RNA content. We identified several types of human and plasmodial regulatory RNAs. While the miRNAs and tRNA-derived fragments were the most abundant human RNAs, we also found Y-RNAs, vault RNAs, snoRNAs and piRNAs. Interestingly, we found about 120 plasmodial RNAs, including mRNAs coding for exported proteins and proteins involved in drug resistance, as well as non-coding RNAs, such as rRNAs, small nuclear (snRNAs) and tRNAs. These data show, that iRBC-EVs carry small regulatory RNAs. A role in cellular communication is possible since the RNAs were transferred to endothelial cells. Furthermore, the presence of Plasmodium RNAs, in EVs suggests that they may be used as biomarker to track and detect disease. PMID- 29343747 TI - Computational trans-omics approach characterised methylomic and transcriptomic involvements and identified novel therapeutic targets for chemoresistance in gastrointestinal cancer stem cells. AB - We investigated the relationship between methylomic [5-methylation on deoxycytosine to form 5-methylcytosine (5mC)] and transcriptomic information in response to chemotherapeutic 5-fluorouracil (5-FU) exposure and cisplatin (CDDP) administration using the ornithine decarboxylase (ODC) degron-positive cancer stem cell model of gastrointestinal tumour. The quantification of 5mC methylation revealed various alterations in the size distribution and intensity of genomic loci for each patient. To summarise these alterations, we transformed all large volume data into a smooth function and treated the area as a representative value of 5mC methylation. The present computational approach made the methylomic data more accessible to each transcriptional unit and allowed to identify candidate genes, including the tumour necrosis factor receptor-associated factor 4 (TRAF4), as novel therapeutic targets with a strong response to anti-tumour agents, such as 5-FU and CDDP, and whose significance has been confirmed in a mouse model in vivo. The present study showed that 5mC methylation levels are inversely correlated with gene expression in a chemotherapy-resistant stem cell model of gastrointestinal cancer. This mathematical method can be used to simultaneously quantify and identify chemoresistant potential targets in gastrointestinal cancer stem cells. PMID- 29343746 TI - The Static Magnetic Field Remotely Boosts the Efficiency of Doxorubicin through Modulating ROS Behaviors. AB - Exposure to magnetic field (MF) can affect cellular metabolism remotely. Cardio toxic effects of Doxorubicin (DOXO) have limited clinical uses at high dose. MF due to its effect on reactive oxygen species (ROS) lifetime, may provide a suitable choice to boost the efficacy of this drug at low dose. Here, we investigated the potential effects of homogenous static magnetic field (SMF) on DOXO-induced toxicity and proliferation rate of cancer cells. The results indicated that SMF similar to DOXO decreased the cell viability as well as the proliferation rate of MCF-7 and HFF cells. Moreover, combination of 10 mT SMF and 0.1 uM DOXO decreased the viability and proliferation rate of cancer and normal cells in a synergetic manner. In spite of high a GSH level in cancer cell, SMF boosts the generation and lifetime of ROS at low dose of DOXO, and overcame to GSH mediated drug resistance. The results also confirmed that SMF exposure decreased 50% iron content of cells, which is attributed to iron homeostasis. In conclusion, these findings suggest that SMF can decrease required dose of chemotherapy drugs such as DOXO and thereby decrease their side effect. PMID- 29343741 TI - Species Distribution Modelling: Contrasting presence-only models with plot abundance data. AB - Species distribution models (SDMs) are widely used in ecology and conservation. Presence-only SDMs such as MaxEnt frequently use natural history collections (NHCs) as occurrence data, given their huge numbers and accessibility. NHCs are often spatially biased which may generate inaccuracies in SDMs. Here, we test how the distribution of NHCs and MaxEnt predictions relates to a spatial abundance model, based on a large plot dataset for Amazonian tree species, using inverse distance weighting (IDW). We also propose a new pipeline to deal with inconsistencies in NHCs and to limit the area of occupancy of the species. We found a significant but weak positive relationship between the distribution of NHCs and IDW for 66% of the species. The relationship between SDMs and IDW was also significant but weakly positive for 95% of the species, and sensitivity for both analyses was high. Furthermore, the pipeline removed half of the NHCs records. Presence-only SDM applications should consider this limitation, especially for large biodiversity assessments projects, when they are automatically generated without subsequent checking. Our pipeline provides a conservative estimate of a species' area of occupancy, within an area slightly larger than its extent of occurrence, compatible to e.g. IUCN red list assessments. PMID- 29343748 TI - Sac7 and Rho1 regulate the white-to-opaque switching in Candida albicans. AB - Candida albicans cells homozygous at the mating-type locus stochastically undergo the white-to-opaque switching to become mating-competent. This switching is regulated by a core circuit of transcription factors organized through interlocking feedback loops around the master regulator Wor1. Although a range of distinct environmental cues is known to induce the switching, the pathways linking the external stimuli to the central control mechanism remains largely unknown. By screening a C. albicans haploid gene-deletion library, we found that SAC7 encoding a GTPase-activating protein of Rho1 is required for the white-to opaque switching. We demonstrate that Sac7 physically associates with Rho1-GTP and the constitutively active Rho1G18V mutant impairs the white-to-opaque switching while the inactive Rho1D124A mutant promotes it. Overexpressing WOR1 in both sac7Delta/Delta and rho1 G18V cells suppresses the switching defect, indicating that the Sac7/Rho1 module acts upstream of Wor1. Furthermore, we provide evidence that Sac7/Rho1 functions in a pathway independent of the Ras/cAMP pathway which has previously been positioned upstream of Wor1. Taken together, we have discovered new regulators and a signaling pathway that regulate the white-to-opaque switching in the most prevalent human fungal pathogen C. albicans. PMID- 29343750 TI - Multi-wavelength growth of nanosecond laser-induced surface damage on fused silica gratings. AB - The nanosecond laser-induced damage growth phenomenon on the exit surface of fused silica grating is investigated at 1064 nm and 355 nm separately and also simultaneously. Experiments are first carried out on damage sites on a plane fused silica sample showing two different morphologies, and a damage type is selected for ensuring the repeatability of the subsequent tests. Comparing the mono-wavelength growth results on a grating and a plane fused silica sample, the periodic surface structure is found to be an aggravating factor for damage growth. This is highly supported by calculations of the enhancement of the optical electric field intensity thanks to Finite-Difference Time-Domain simulations. Finally, the mono-wavelength results enable us to quantify a coupling occurring in the multi-wavelength configuration, which could originate from the heating of the plasma (more likely produced in the ultraviolet) preferentially by the infrared pulse. This study provides interesting results about the involvement of the surface topography in damage growth, and paves the way towards the comprehension of this phenomenon at high-energy nanosecond laser facilities where fused silica gratings are simultaneously irradiated at several wavelengths. PMID- 29343749 TI - Testosterone boosts physical activity in male mice via dopaminergic pathways. AB - Low testosterone (T) in men, especially its free fraction, has been associated with loss of energy. In accordance, orchidectomy (ORX) in rodents results in decreased physical activity. Still, the mechanisms through which T stimulates activity remain mostly obscure. Here, we studied voluntary wheel running behavior in three different mouse models of androgen deficiency: ORX, androgen receptor (AR) knock-out (ARKO) and sex hormone binding globulin (SHBG)-transgenic mice, a novel mouse model of "low free T". Our results clearly show a fast and dramatic action of T stimulating wheel running, which is not explained by its action on muscle, as evidenced by neuromuscular studies and in a muscle-specific conditional ARKO mouse model. The action of T occurs via its free fraction, as shown by the results in SHBG-transgenic mice, and it implies both androgenic and estrogenic pathways. Both gene expression and functional studies indicate that T modulates the in vivo sensitivity to dopamine (DA) agonists. Furthermore, the restoration of wheel running by T is inhibited by treatment with DA antagonists. These findings reveal that the free fraction of T, both via AR and indirectly through aromatization into estrogens, stimulates physical activity behavior in male mice by acting on central DA pathways. PMID- 29343751 TI - Altered power spectral density in the resting-state sensorimotor network in patients with myotonic dystrophy type 1. AB - Myotonic dystrophy type 1 (DM1) is a multisystemic disease that involves the brain with several neurological symptoms. Although there were few imaging studies on DM1, no studies have investigated functional alterations in the sensorimotor network at rest in patients with DM1. In the current study, a power spectral density (PSD) analysis of resting-state fMRI data was performed to assess possible alteration in spontaneous neural activity of the sensorimotor network in patients with DM1. Compared to healthy controls, patients with DM1 showed higher PSD responses in the orbitofrontal cortex, parahippocampus and basal ganglia (corrected P < 0.05). Patients with DM1 showed higher PSD responses in white matter structures associated with motor function (corrected P < 0.05). Furthermore, correlation analysis indicated that the brain regions showing PSD differences were correlated with measures of motor performance (P < 0.05). In gray matter, our findings suggest that motor disability in DM1 is not an isolated deterioration of the motor power but a multimodal dysfunction that also involves the visual system. In addition, the widespread PSD alteration in white matter structures suggest that motor deficits in DM1 involve motor movement structures as well as structures important for its coordination and regulation. PMID- 29343752 TI - Counting Caenorhabditis elegans: Protocol Optimization and Applications for Population Growth and Toxicity Studies in Liquid Medium. AB - The nematode Caenorhabditis elegans is used extensively in molecular, toxicological and genetics research. However, standardized methods for counting nematodes in liquid culture do not exist despite the wide use of nematodes and need for accurate measurements. Herein, we provide a simple and affordable counting protocol developed to maximize count accuracy and minimize variability in liquid nematode culture. Sources of variability in the counting process were identified and tested in 14 separate experiments. Three variables resulted in significant effects on nematode count: shaking of the culture, priming of pipette tips, and sampling location within a microcentrifuge tube. Between-operator variability did not have a statistically significant effect on counts, even among differently-skilled operators. The protocol was used to assess population growth rates of nematodes in two different but common liquid growth media: axenic modified Caenorhabditis elegans Habitation and Reproduction medium (mCeHR) and S basal complete. In mCeHR, nematode populations doubled daily for 10 d. S-basal complete populations initially doubled every 12 h, but slowed within 7 d. We also detected a statistically significant difference between embryo-to-hatchling incubation period of 5 d in mCeHR compared to 4 d in S-basal complete. The developed counting method for Caenorhabditis elegans reduces variability and allows for rigorous and reliable experimentation. PMID- 29343753 TI - Procalcitonin as a Biomarker for Malignant Cerebral Edema in Massive Cerebral Infarction. AB - The objective of this study is to explore whether procalcitonin (PCT) can serve as an early biomarker of malignant cerebral edema in patients with massive cerebral infarction (MCI). Ninety-three patients with acute MCI were divided into death or survival groups based on whether they died or survived within 1 week of cerebral herniation. Differences in laboratory parameters between these two groups were analyzed by univariate analysis, followed by multivariate logistic regression analyses if the influencing factors were significantly different. Compared with the survival group, the patients in the death group had a larger cerebral infarct area, higher body temperature, neutrophil counts, PCT level, and neuron-specific enolase (NSE) level within 48 h of onset. Multivariate logistic regression analyses revealed an odds ratio (OR) of 1.830 or 1.235 for PCT and neutrophil counts respectively, suggesting that PCT and neutrophil counts are two independent risk factors for death in MCI. The area under receiver operating characteristic (ROC) curve was 0.754 for PCT, larger than that for neutrophil counts. Thus, both serum PCT levels and neutrophil counts can be used as biomarkers to predict malignant cerebral edema at the early stages after MCI, but PCT levels are superior predictors of malignant cerebral edema. PMID- 29343754 TI - Development and validation of a brief diabetic foot ulceration risk checklist among diabetic patients: a multicenter longitudinal study in China. AB - The study aims to develop and assess and validate a brief diabetic foot ulceration risk checklist among diabetic patients through a longitudinal study. Patients who had diabetes mellitus and had no foot ulceration and severe systematic disorders were recruited from eleven tertiary hospitals in nine provinces or municipalities of China. Internal consistency reliability, construct validity, concurrent validity, item property, and measurement invariance of the tool were assessed. The predictive capability of the tool was validated by the follow-up data using the receiver operating characteristic curve. At baseline, 477 valid cases were collected. Twelve items were remained after initial selection. Cronbach's alpha was 0.56. Confirmatory factor analysis showed that the model had acceptable goodness-of-fit yet local dependency between two items. Item response theory showed that most items had acceptable discrimination and difficulty parameters. Differential item functioning showed that tool had measurement invariance. 278 were followed up one year after the baseline. Follow up showed that one-year incidence of ulceration among the patients was 3.6%, and the area under the receiver operating characteristic curve was 0.77 (95% confidence interval: 0.61-0.93). The cut-off point of the tool was 4, when sensitivity and specificity were 0.62 and 0.75 respectively. The checklist has good psychometric properties according to mixed evidences from classical and modern test theory, and has good predictive capability. PMID- 29343755 TI - Significantly High Modulation Efficiency of Compact Graphene Modulator Based on Silicon Waveguide. AB - We theoretically and experimentally demonstrate a significantly large modulation efficiency of a compact graphene modulator based on a silicon waveguide using the electro refractive effect of graphene. The modulation modes of electro-absorption and electro-refractive can be switched with different applied voltages. A high extinction ratio of 25 dB is achieved in the electro-absorption modulation mode with a driving voltage range of 0 V to 1 V. For electro-refractive modulation, the driving voltage ranges from 1 V to 3 V with a 185-pm spectrum shift. The modulation efficiency of 1.29 V . mm with a 40-MUm interaction length is two orders of magnitude higher than that of the first reported graphene phase modulator. The realisation of phase and intensity modulation with graphene based on a silicon waveguide heralds its potential application in optical communication and optical interconnection systems. PMID- 29343756 TI - Radiological and clinical differences among three assisted technologies in pedicle screw fixation of adult degenerative scoliosis. AB - The purpose of this study was to compare the clinical and radiological differences among three advanced guided technologies in adult degenerative scoliosis. A total of 1012 pedicle screws were inserted in 83 patients using a spine robot (group A), 886 screws were implanted in 75 patients using a drill guide template (group B), and 1276 screws were inserted in 109 patients using CT based navigation (group C). Screw positions were evaluated using postoperative CT scans according to the Gertzbein and Robbins classification. Other relevant data were also collected. Perfect pedicle screw insertion (Grade A) accuracy in groups A, B, and C was 91.3%, 81.3%, and 84.1%, respectively. Clinically acceptable accuracy of screw implantation (Grades A + B) respectively was 96.0%, 90.6%, and 93.0%. Statistical analysis showed the perfect and clinically acceptable accuracy in group A was significant different compared with groups B and C. Group A exhibited the lowest intra-op radiation dose and group B showed the shortest surgical time compared with the other two groups. Robotic-assisted technology demonstrated significantly higher accuracy than the drill guide template or CT based navigation systems for difficult screw implantations in adult degenerative scoliosis and reduced the intra-op radiation dose, although it failed to reduce surgery time. PMID- 29343757 TI - The early conversion of deep-sea wood falls into chemosynthetic hotspots revealed by in situ monitoring. AB - Wood debris on the ocean floor harbor flourishing communities, which include invertebrate taxa thriving in sulfide-rich habitats belonging to hydrothermal vent and methane seep deep-sea lineages. The formation of sulfidic niches from digested wood material produced by woodborers has been known for a long time, but the temporal dynamics and sulfide ranges encountered on wood falls remains unknown. Here, we show that wood falls are converted into sulfidic hotpots, before the colonization by xylophagaid bivalves. Less than a month after immersion at a depth of 520 m in oxygenated seawater the sulfide concentration increased to millimolar levels inside immersed logs. From in situ experiments combining high-frequency chemical and video monitoring, we document the rapid development of a microbial sulfur biofilm at the surface of wood. These findings highlight the fact that sulfide is initially produced from the labile components of wood and supports chemosynthesis as an early pathway of energy transfer to deep-sea wood colonists, as suggested by recent aquarium studies. The study furthermore reveals that woodborers promote sulfide-oxidation at the periphery of their burrows, thus, not only facilitating the development of sulfidic zones in the surrounding of degraded wood falls, but also governing sulfur-cycling within the wood matrix. PMID- 29343758 TI - Electronic Properties of Synthetic Shrimp Pathogens-derived DNA Schottky Diodes. AB - The exciting discovery of the semiconducting-like properties of deoxyribonucleic acid (DNA) and its potential applications in molecular genetics and diagnostics in recent times has resulted in a paradigm shift in biophysics research. Recent studies in our laboratory provide a platform towards detecting charge transfer mechanism and understanding the electronic properties of DNA based on the sequence-specific electronic response, which can be applied as an alternative to identify or detect DNA. In this study, we demonstrate a novel method for identification of DNA from different shrimp viruses and bacteria using electronic properties of DNA obtained from both negative and positive bias regions in current-voltage (I-V) profiles. Characteristic electronic properties were calculated and used for quantification and further understanding in the identification process. Aquaculture in shrimp industry is a fast-growing food sector throughout the world. However, shrimp culture in many Asian countries faced a huge economic loss due to disease outbreaks. Scientists have been using specific established methods for detecting shrimp infection, but those methods do have their significant drawbacks due to many inherent factors. As such, we believe that this simple, rapid, sensitive and cost-effective tool can be used for detection and identification of DNA from different shrimp viruses and bacteria. PMID- 29343759 TI - Incorporation of iloprost in phospholipase-resistant phospholipid scaffold enhances its barrier protective effects on pulmonary endothelium. AB - Correction of barrier dysfunction and inflammation in acute lung injury (ALI) represents an important problem. Previous studies demonstrate barrier-protective and anti-inflammatory effects of bioactive lipid prostacyclin and its stable analog iloprost (ILO). We generated a phospholipase resistant synthetic phospholipid with iloprost attached at the sn-2 position (ILO-PC) and investigated its biological effects. In comparison to free ILO, ILO-PC caused sustained endothelial cell (EC) barrier enhancement, linked to more prolonged activation of Rap1 and Rac1 GTPases and their cytoskeletal and cell junction effectors: cortactin, PAK1, p120-catenin and VE-cadherin. ILO and ILO-PC equally efficiently suppressed acute, Rho GTPase-dependent EC hyper-permeability caused by thrombin. However, ILO-PC exhibited more sustained barrier-protective and anti inflammatory effects in the model of chronic EC dysfunction caused by bacterial wall lipopolysacharide (LPS). ILO-PC was also more potent inhibitor of NFkappaB signaling and lung vascular leak in the murine model of LPS-induced ALI. Treatment with ILO-PC showed more efficient ALI recovery over 3 days after LPS challenge than free ILO. In conclusion, this study describes a novel synthetic phospholipid with barrier-enhancing and anti-inflammatory properties superior to existing prostacyclin analogs, which may be used as a prototype for future development of more efficient treatment for ALI and other vascular leak syndromes. PMID- 29343760 TI - Large-scale semi-arid afforestation can enhance precipitation and carbon sequestration potential. AB - Afforestation is an important approach to mitigate global warming. Its complex interactions with the climate system, however, makes it controversial. Afforestation is expected to be effective in the tropics where biogeochemical and biogeophysical effects act in concert; however, its potential in the large semi arid regions remains insufficiently explored. Here, we use a Global Climate Model to provide a process-based demonstration that implementing measured characteristics of a successful semi-arid afforestation system (2000 ha, ~300 mm mean annual precipitation) over large areas (~200 million ha) of similar precipitation levels in the Sahel and North Australia leads to the weakening and shifting of regional low-level jets, enhancing moisture penetration and precipitation (+0.8 +/- 0.1 mm d-1 over the Sahel and +0.4 +/- 0.1 mm d-1 over North Australia), influencing areas larger than the original afforestation. These effects are associated with increasing root depth and surface roughness and with decreasing albedo. This results in enhanced evapotranspiration, surface cooling and the modification of the latitudinal temperature gradient. It is estimated that the carbon sequestration potential of such large-scale semi-arid afforestation can be on the order of ~10% of the global carbon sink of the land biosphere and would overwhelm any biogeophysical warming effects within ~6 years. PMID- 29343761 TI - A high throughput approach for the generation of orthogonally interacting protein pairs. AB - In contrast to the nearly error-free self-assembly of protein architectures in nature, artificial assembly of protein complexes with pre-defined structure and function in vitro is still challenging. To mimic nature's strategy to construct pre-defined three-dimensional protein architectures, highly specific protein protein interacting pairs are needed. Here we report an effort to create an orthogonally interacting protein pair from its parental pair using a bacteria based in vivo directed evolution strategy. This high throughput approach features a combination of a negative and a positive selection. The newly developed negative selection from this work was used to remove any protein mutants that retain effective interaction with their parents. The positive selection was used to identify mutant pairs that can engage in effective mutual interaction. By using the cohesin-dockerin protein pair that is responsible for the self-assembly of cellulosome as a model system, we demonstrated that a protein pair that is orthogonal to its parent pair could be readily generated using our strategy. This approach could open new avenues to a wide range of protein-based assembly, such as biocatalysis or nanomaterials, with pre-determined architecture and potentially novel functions and properties. PMID- 29343762 TI - Mercury sodium exospheric emission as a proxy for solar perturbations transit. AB - The first evidence at Mercury of direct relation between ICME transit and Na exosphere dynamics is presented, suggesting that Na emission, observed from ground, could be a proxy of planetary space weather at Mercury. The link existing between the dayside exosphere Na patterns and the solar wind-magnetosphere surface interactions is investigated. This goal is pursued by analyzing the Na intensity hourly images, as observed by the ground-based THEMIS solar telescope during 10 selected periods between 2012 and 2013 (with seeing, sigma < = 2"), when also MESSENGER data were available. Frequently, two-peak patterns of variable intensity are observed, located at high latitudes in both hemispheres. Occasionally, Na signal is instead diffused above the sub-solar region. We compare these different patterns with the in-situ time profiles of proton fluxes and magnetic field data from MESSENGER. Among these 10 cases, only in one occasion the Na signal is diffused above the subsolar region, when the MESSENGER data detect the transit of two ICMEs. The selected cases suggest that the Na emission patterns are well related to the solar wind conditions at Mercury. Hence, the exospheric Na emission patterns, observed from ground, could be considered as a 'natural monitor' of solar disturbances when transiting near Mercury. PMID- 29343763 TI - Association of S100B polymorphisms and serum S100B with risk of ischemic stroke in a Chinese population. AB - The levels of serum S100B were elevated in patients with ischemic stroke (IS), which may be a novel biomarker for diagnosing IS. The aim of this study was to investigate the association of S100B polymorphisms and serum S100B with IS risk. We genotyped the S100B polymorphisms rs9722, rs9984765, rs2839356, rs1051169 and rs2186358 in 396 IS patients and 398 controls using polymerase chain reaction single base extension (SBE-PCR). Serum S100B levels were measured by enzyme linked immunosorbent assay (ELISA). Rs9722 was associated with an increased risk of IS (AA vs. GG: adjusted OR = 2.172, 95% CI, 1.175-4.014, P = 0.013; dominant: adjusted OR = 1.507, 95% CI, 1.071-2.123, P = 0.019; recessive: adjusted OR = 1.846, 95% CI, 1.025-3.323, P = 0.041; additive: adjusted OR=1.371, 95% CI, 1.109 1.694, P = 0.003). The A-C-C-C-A haplotype was associated with an increased risk of IS (OR = 1.325, 95% CI, 1.035-1.696, P = 0.025). In addition, individuals carrying the rs9722 GA/AA genotypes had a higher serum S100B compared with the rs9722 GG genotype in IS patients (P = 0.018). Our results suggest that the S100B gene rs9722 polymorphism may contribute to the susceptibility of IS, probably by promoting the expression of serum S100B. PMID- 29343765 TI - Regulation of Signaling Pathways Involved in the Anti-proliferative and Apoptosis inducing Effects of M22 against Non-small Cell Lung Adenocarcinoma A549 Cells. AB - The compound 29-(4-methylpiperazine)-luepol (M22), a novel derivative of lupeol has shown anti-proliferative effects against the human non-small cell lung cancer A549 cell line. M22 showed significant anti-proliferative activity at 6.80 MUM and increased accumulation of G1 cells and effectively suppressed expression of the G1 arrest-related genes cyclins D1 and E1, CDK2 and CDC25A. This was further confirmed by Western blotting demonstrating decreased cyclin D1 and CDC25A protein levels. Furthermore, M22 caused induction of apoptosis that downregulated the anti-apoptotic BCL-2 gene and increased expression of BAX, CASP3 and CASP9 as well as the APAF1 gene. The effect of caspase-induced apoptosis was confirmed by an increase in reactive oxygen species (ROS), loss of mitochondrial membrane potential (MMP). Taken together, our findings indicated that M22 possessed potent anti-proliferative and apoptotic activities. PMID- 29343766 TI - Sudden sensory neural hearing loss is not predictive of myocardial infarction: A longitudinal follow-up study using a national sample cohort. AB - The aim of this study was to evaluate the risk of myocardial infarction (MI) in SSNHL subjects with differently matched control groups. The Korean Health Insurance Review and Assessment Service - National Sample Cohort recruited subjects from 2002 to 2013. We used two study designs. In study I, we matched 4,467 SSNHL participants with a control group (17,868 subjects with no history of SSNHL) based on demographic factors (age, sex, income, and region of residence) and medical history (diabetes, dyslipidemia, and hypertension). In study II, we matched 4,467 SSNHL participants with a control group based on only demographic factors. The crude (simple) and adjusted hazard ratios (HRs) of SSNHL with MI were analyzed using the Cox-proportional hazard model. In study I, SSNHL was not associated with increased risk of MI. However, in study II, SSNHL was associated with increased risk of MI (adjusted HR = 1.39 95% CI = 1.00-1.93, P = 0.048). The SSNHL group did not exhibit increased risk of MI when compared to the control group matched by both demographic factors and medical history. However, compared to the control group not matched by medical history, the relative risk of MI was increased in the SSNHL group. PMID- 29343767 TI - Blockade of TRPV1 Inhibits Methamphetamine-induced Rewarding Effects. AB - Methamphetamine (MAP) is the most widely used psychostimulant in the world, but the exact mechanisms underlying MAP addiction are not yet fully understood. Recent studies have identified the distribution of TRPV1 in several brain regions that are related to drug addiction, including nucleus accumbens (NAc) and dorsal striatum (DSt). In the present study, we performed conditioned place preference (CPP) and self-administration tests to examine the effects of capsazepine (CPZ) and SB366791 (SB) on MAP reward. We found that both CPZ and SB significantly inhibited MAP-induced CPP and self-administration; in contrast, TRPV1 knock-out (KO) mice did not develop MAP-induced CPP. Real-time RT-PCR, Western blot and quantitative autoradiographic tests showed up-regulation of TRPV1 mRNA and protein expression in the NAc and/or DSt regions of mice exhibiting MAP-induced CPP. In addition, an in vivo microdialysis experiment showed that CPZ dramatically reduced dopamine (DA) levels in the NAc region of MAP-treated mice. Furthermore, attenuated dopamine transporter (DAT) binding levels in the NAc and DSt regions of MAP-induced CPP mice were reversed by CPZ. Together, these data suggest that TRPV1 plays an important role in MAP reward via the modulation of DA release and DAT density, thereby providing a novel therapeutic target for MAP addiction. PMID- 29343768 TI - Broadband Asymmetric Light Transmission at Metal/Dielectric Composite Grating. AB - Optical diode-like effect has sparked growing interest in recent years due to its potential applications in integrated photonic systems. In this paper, we propose and numerically demonstrate a new type of easy-processing metal/dielectric cylinder composite grating on semi-sphere substrate, which can achieve high contrast asymmetric transmission of unpolarized light for the sum of all diffraction modes in the entire visible region, and effectively guide the diffraction light transmitting out the substrate. The asymmetric light transmission (ALT) ratio is larger than 2 dB in the waveband from 380 nm to 780 nm and the maximum ALT ratio can reach to 13 dB at specified wavelengths. The thorough theoretical research reveals that the proposed metal/dielectric pillar composite grating structure, together with the substrate, can effectively excite localized surface plasmonic resonance (LSPR) effect and waveguide mode (WGM), and enlarge the diffraction difference between forward and backward transmission spaces, including both number of diffraction orders and diffraction efficiency, thus resulting in high-contrast broadband ALT phenomenon. In particular, lowering the symmetry of the grating can achieve polarization-dependent ALT. Such a type of easy-processing ALT device with high performance for both polarized and unpolarized light can be regarded as suitable candidates in practical applications. PMID- 29343764 TI - Genome-wide association study in 79,366 European-ancestry individuals informs the genetic architecture of 25-hydroxyvitamin D levels. AB - Vitamin D is a steroid hormone precursor that is associated with a range of human traits and diseases. Previous GWAS of serum 25-hydroxyvitamin D concentrations have identified four genome-wide significant loci (GC, NADSYN1/DHCR7, CYP2R1, CYP24A1). In this study, we expand the previous SUNLIGHT Consortium GWAS discovery sample size from 16,125 to 79,366 (all European descent). This larger GWAS yields two additional loci harboring genome-wide significant variants (P = 4.7*10-9 at rs8018720 in SEC23A, and P = 1.9*10-14 at rs10745742 in AMDHD1). The overall estimate of heritability of 25-hydroxyvitamin D serum concentrations attributable to GWAS common SNPs is 7.5%, with statistically significant loci explaining 38% of this total. Further investigation identifies signal enrichment in immune and hematopoietic tissues, and clustering with autoimmune diseases in cell-type-specific analysis. Larger studies are required to identify additional common SNPs, and to explore the role of rare or structural variants and gene-gene interactions in the heritability of circulating 25-hydroxyvitamin D levels. PMID- 29343769 TI - CKAMP44 modulates integration of visual inputs in the lateral geniculate nucleus. AB - Relay neurons in the dorsal lateral geniculate nucleus (dLGN) receive excitatory inputs from retinal ganglion cells (RGCs). Retinogeniculate synapses are characterized by a prominent short-term depression of AMPA receptor (AMPAR) mediated currents, but the underlying mechanisms and its function for visual integration are not known. Here we identify CKAMP44 as a crucial auxiliary subunit of AMPARs in dLGN relay neurons, where it increases AMPAR-mediated current amplitudes and modulates gating of AMPARs. Importantly, CKAMP44 is responsible for the distinctive short-term depression in retinogeniculate synapses by reducing the rate of recovery from desensitization of AMPARs. Genetic deletion of CKAMP44 strongly reduces synaptic short-term depression, which leads to increased spike probability of relay neurons when activated with high frequency inputs from retinogeniculate synapses. Finally, in vivo recordings reveal augmented ON- and OFF-responses of dLGN neurons in CKAMP44 knockout (CKAMP44-/-) mice, demonstrating the importance of CKAMP44 for modulating synaptic short-term depression and visual input integration. PMID- 29343770 TI - Reconstructing the gradient source position from steady-state fluxes to small receptors. AB - Recovering the position of a source from the fluxes of diffusing particles through small receptors allows a biological cell to determine its relative position, spatial localization and guide it to a final target. However, how a source can be recovered from point fluxes remains unclear. Using the Narrow Escape approach for an open domain, we compute the diffusion fluxes of Brownian particles generated by a steady-state gradient from a single source through small holes distributed on a surface in two dimensions. We find that the location of a source can be recovered when there are at least 3 receptors and the source is positioned no further than 10 cell radii away, but this condition is not necessary in a narrow strip. The present approach provides a computational basis for the first step of direction sensing of a gradient at a single cell level. PMID- 29343772 TI - Shape-matching soft mechanical metamaterials. AB - Architectured materials with rationally designed geometries could be used to create mechanical metamaterials with unprecedented or rare properties and functionalities. Here, we introduce "shape-matching" metamaterials where the geometry of cellular structures comprising auxetic and conventional unit cells is designed so as to achieve a pre-defined shape upon deformation. We used computational models to forward-map the space of planar shapes to the space of geometrical designs. The validity of the underlying computational models was first demonstrated by comparing their predictions with experimental observations on specimens fabricated with indirect additive manufacturing. The forward-maps were then used to devise the geometry of cellular structures that approximate the arbitrary shapes described by random Fourier's series. Finally, we show that the presented metamaterials could match the contours of three real objects including a scapula model, a pumpkin, and a Delft Blue pottery piece. Shape-matching materials have potential applications in soft robotics and wearable (medical) devices. PMID- 29343771 TI - Magnetoencephalographic Correlates of Perceptual State During Auditory Bistability. AB - Bistability occurs when two alternative percepts can be derived from the same physical stimulus. To identify the neural correlates of specific subjective experiences we used a bistable auditory stimulus and determined whether the two perceptual states could be distinguished electrophysiologically. Fourteen participants underwent magnetoencephalography while reporting their perceptual experience while listening to a continuous bistable stream of auditory tones. Participants reported bistability with a similar overall proportion of the two alternative percepts (52% vs 48%). At the individual level, sensor space electrophysiological discrimination between the percepts was possible in 9/14 participants with canonical variate analysis (CVA) or linear support vector machine (SVM) analysis over space and time dimensions. Classification was possible in 14/14 subjects with non-linear SVM. Similar effects were noted in an unconstrained source space CVA analysis (classifying 10/14 participants), linear SVM (classifying 9/14 subjects) and non-linear SVM (classifiying 13/14 participants). Source space analysis restricted to a priori ROIs showed discrimination was possible in the right and left auditory cortex with each classification approach but in the right intraparietal sulcus this was only apparent with non-linear SVM and only in a minority of particpants. Magnetoencephalography can be used to objectively classify auditory experiences from individual subjects. PMID- 29343773 TI - Mitochondrial Mutations in Cholestatic Liver Disease with Biliary Atresia. AB - Biliary atresia (BA) results in severe bile blockage and is caused by the absence of extrahepatic ducts. Even after successful hepatic portoenterostomy, a considerable number of patients are likely to show progressive deterioration in liver function. Recent studies show that mutations in protein-coding mitochondrial DNA (mtDNA) genes and/or mitochondrial genes in nuclear DNA (nDNA) are associated with hepatocellular dysfunction. This observation led us to investigate whether hepatic dysfunctions in BA is genetically associated with mtDNA mutations. We sequenced the mtDNA protein-coding genes in 14 liver specimens from 14 patients with BA and 5 liver specimens from 5 patients with choledochal cyst using next-generation sequencing. We found 34 common non synonymous variations in mtDNA protein-coding genes in all patients examined. A systematic 3D structural analysis revealed the presence of several single nucleotide polymorphism-like mutations in critical regions of complexes I to V, that are involved in subunit assembly, proton-pumping activity, and/or supercomplex formation. The parameters of chronic hepatic injury and liver dysfunction in BA patients were also significantly correlated with the extent of hepatic failure, suggesting that the mtDNA mutations may aggravate hepatopathy. Therefore, mitochondrial mutations may underlie the pathological mechanisms associated with BA. PMID- 29343774 TI - An improved method of crafting a multi-electrode spiral cuff for the selective. AB - This article reviews an improved methodology and technology for crafting a multi electrode spiral cuff for the selective activation of nerve fibres in particular superficial regions of a peripheral nerve. The analysis, structural and mechanical properties of the spot welds used for the interconnections between the stimulating electrodes and stainless-steel lead wires are presented. The cuff consisted of 33 platinum electrodes embedded within a self-curling 17-mm-long silicone spiral sheet with a nominal internal diameter of 2.5 mm. The weld was analyzed using scanning electron microscopy and nanohardness tests, while the interconnection was investigated using destructive load tests. The functionality of the cuff was tested in an isolated porcine vagus nerve. The results of the scanning electron microscopy show good alloying and none of the typical welding defects that occur between the wire and the platinum foil. The results of the destructive load tests show that the breaking loads were between 3.22 and 5 N. The results of the nanohardness testing show that the hardness of the weld was different for the particular sites on the weld sample. Finally, the results of the functional testing show that for different stimulation intensities both the compound action potential deflection and the shape are modulated. PMID- 29343775 TI - Impact of Concurrent Genomic Alterations Detected by Comprehensive Genomic Sequencing on Clinical Outcomes in East-Asian Patients with EGFR-Mutated Lung Adenocarcinoma. AB - Next-generation sequencing (NGS) has enabled comprehensive detection of genomic alterations in lung cancer. Ethnic differences may play a critical role in the efficacy of targeted therapies. The aim of this study was to identify and compare genomic alterations of lung adenocarcinoma between Japanese patients and the Cancer Genome Atlas (TCGA), which majority of patients are from the US. We also aimed to examine prognostic impact of additional genomic alterations in patients harboring EGFR mutations. Genomic alterations were determined in Japanese patients with lung adenocarcinoma (N = 100) using NGS-based sequencing of 415 known cancer genes, and correlated with clinical outcome. EGFR active mutations, i.e., those involving exon 19 deletion or an L858R point mutation, were seen in 43% of patients. Some differences in driver gene mutation prevalence were observed between the Japanese cohort described in the present study and the TCGA. Japanese cohort had significantly more genomic alterations in cell cycle pathway, i.e., CDKN2B and RB1 than TCGA. Concurrent mutations, in genes such as CDKN2B or RB1, were associated with worse clinical outcome in patients with EGFR active mutations. Our data support the utility of comprehensive sequencing to detect concurrent genomic variations that may affect clinical outcomes in this disease. PMID- 29343776 TI - Critical Shear Stress is Associated with Diabetic Kidney Disease in Patients with Type 2 Diabetes. AB - Critical shear stress (CSS, mPa) is an index of red blood cell (RBC) aggregability, defined as the minimal shear stress required to disperse RBC aggregates. This study aimed to investigate the association between CSS and the risk of diabetic kidney disease (DKD). A total of 421 (mean age, 58.1 +/- 11.5 years; male, 250) individuals with T2DM were enrolled and divided into three groups according to CSS level. CSS was measured using a transient microfluidic technique. DKD was defined as a glomerular filtration rate (GFR) <60 ml/min/1.73 m2 or a urine albumin-to-creatinine ratio (uACR) >=30 mg/g. CSS was significantly higher in patients with DKD than in those without (317.43 +/- 125.11 vs 385.22 +/ 182.89, p < 0.001). Compared to the lowest CSS tertile, the highest CSS tertile was independently associated with the risk of DKD after adjusting for age, sex, duration of diabetes, presence of hypertension and haemoglobin. The cut-off value of CSS for DKD was approximately 310 mPa. These results suggest that haemorheologic changes may contribute to DKD, and further prospective studies are warranted to determine the role of CSS as a DKD screening tool. PMID- 29343777 TI - The hidden cost of using low-resolution concentration data in the estimation of NH3 dry deposition fluxes. AB - Long-term monitoring stations for atmospheric pollutants are often equipped with low-resolution concentration samplers. In this study, we analyse the errors associated with using monthly average ammonia concentrations as input variables for bidirectional biosphere-atmosphere exchange models, which are commonly used to estimate dry deposition fluxes. Previous studies often failed to account for a potential correlation between ammonia exchange velocities and ambient concentrations. We formally derive the exact magnitude of these errors from statistical considerations and propose a correction scheme based on parallel measurements using high-frequency analysers. In case studies using both modelled and measured ammonia concentrations and micrometeorological drivers from sites with varying pollution levels, we were able to substantially reduce bias in the predicted ammonia fluxes. Neglecting to account for these errors can, in some cases, lead to significantly biased deposition estimates compared to using high frequency instrumentation or corrected averaging strategies. Our study presents a first step towards a unified correction scheme for data from nation-wide air pollutant monitoring networks to be used in chemical transport and air quality models. PMID- 29343778 TI - Fumarate-based metal-organic frameworks as a new platform for highly selective removal of fluoride from brick tea. AB - Adsorption and removal of fluoride from brick tea is very important but challenging. In this work, two fumarate-based metal-organic frameworks (MOFs) were synthesized for the selective removal of fluoride from brick tea infusion. MOFs were examined for adsorption time, effect of dose, and uptake capacity at different initial concentrations and temperatures. Remarkably, over 80% fluoride removal was achieved by MOF-801 within 5 min at room temperature, while no significant adsorption occurred for the catechins and caffeine in the brick tea infusion. Further, with the use of the Langmuir equation, the maximum fluoride uptake capacity for the nontoxic calcium fumarate (CaFu) MOF was calculated to be as high as 166.11 mg g-1 at 373 K. As observed from FTIR, EDX and XPS results, hydroxyl group in MOFs were substituted by fluoride. This work demonstrates that the novel fumarate-based MOFs are promising materials for the selective removal of fluoride from brick tea infusion. PMID- 29343780 TI - Waste Windshield-Derived Silicon/Carbon Nanocomposites as High-Performance Lithium-Ion Battery Anodes. AB - Silicon has emerged as the most promising high-capacity material for lithium-ion batteries. Waste glass can be a potential low cost and environmentally benign silica resource enabling production of nanosized silicon at the industry level. Windshields are generally made of laminated glass comprising two separate glass bonded together with a layer of polyvinyl butyral sandwiched between them. Herein, silicon/carbon nanocomposites are fabricated from windshields for the first time via magnesiothermic reduction and facile carbonization process using both waste glass and polyvinyl butyral as silica and carbon sources, respectively. High purity reduced silicon has unique 3-dimensional nanostructure with large surface area. Furthermore, the incorporation of carbon in silicon enable to retain the composite anodes highly conductive and mechanically robust, thus providing enhanced cycle stability. PMID- 29343779 TI - Characterization of signaling pathways regulating the expression of pro inflammatory long form thymic stromal lymphopoietin upon human metapneumovirus infection. AB - Thymic stromal lymphopoietin (TSLP) is associated with several allergic diseases including asthma. Two isoforms of TSLP exist in humans, a long form (lfTSLP) and a short form (sfTSLP), displaying distinct immunological functions. Recently, TSLP was found to be upregulated in human airway cells upon human metapneumovirus (hMPV) infection, yet it remains unclear if the two isoforms are regulated differently during hMPV infection. Importantly, the molecular mechanisms underlying hMPV-mediated TSLP induction remain undescribed. In this study, we characterized the expression and regulation of TSLP in hMPV-infected human airway cells. We demonstrated that hMPV strongly induced the expression of pro inflammatory lfTSLP in human airway epithelial cells and lung fibroblasts. Further, knockdown of pattern recognition receptors retinoic acid-inducible gene I (RIG-I) or Toll-like receptor 3 (TLR3), as well as downstream signal transducers, abrogated hMPV-mediated lfTSLP induction. Importantly, silencing of TANK-binding kinase 1 (TBK1) also impaired hMPV-mediated lfTSLP induction, which could be attributed to compromised NF-kappaB activation. Overall, these results suggest that TBK1 may be instrumental for hMPV-mediated activation of NF-kappaB downstream RIG-I and TLR3, leading to a specific induction of lfTSLP in hMPV infected human airway cells. PMID- 29343781 TI - Ocular and Clinical Characteristics Associated with the Extent of Posterior Lamina Cribrosa Curve in Normal Tension Glaucoma. AB - Although normal-tension glaucoma (NTG) is pathogenetically heterogenous, there have been few attempts to subclassify NTG patients according to the mechanism and anatomy of optic nerve damage. This cross-sectional study was performed to investigate differences in the clinical and ocular characteristics between NTG patient groups stratified according to the degree of posterior lamina cribrosa (LC) curve which was assessed by calculating LC curvature index (LCCI). A total of 101 eyes of 101 treatment naive NTG patients were included. The optic nerve head was imaged using enhanced-depth-imaging spectral-domain optical coherence tomography in three horizontal B-scan images in each eye. The patients were divided into two groups based on the magnitude of LCCI using a cutoff of known upper 95 percentile value in healthy subjects: a steeply curved LC group (Group 1, 75 eyes, 74.3%) and a relatively flat LC group (Group 2, 26 eyes, 25.7%). NTG eyes with relatively flat LC had lower intraocular pressure, and were associated with greater parapapillary structural alternation and systemic risk factors. These data suggest that assessment of LC morphology may help clinicians seek additional risk factors and make inferences about the mechanism of optic nerve damage in individual patients. PMID- 29343783 TI - The Hessian Blob Algorithm: Precise Particle Detection in Atomic Force Microscopy Imagery. AB - Imaging by atomic force microscopy (AFM) offers high-resolution descriptions of many biological systems; however, regardless of resolution, conclusions drawn from AFM images are only as robust as the analysis leading to those conclusions. Vital to the analysis of biomolecules in AFM imagery is the initial detection of individual particles from large-scale images. Threshold and watershed algorithms are conventional for automatic particle detection but demand manual image preprocessing and produce particle boundaries which deform as a function of user defined parameters, producing imprecise results subject to bias. Here, we introduce the Hessian blob to address these shortcomings. Combining a scale-space framework with measures of local image curvature, the Hessian blob formally defines particle centers and their boundaries, both to subpixel precision. Resulting particle boundaries are independent of user defined parameters, with no image preprocessing required. We demonstrate through direct comparison that the Hessian blob algorithm more accurately detects biomolecules than conventional AFM particle detection techniques. Furthermore, the algorithm proves largely insensitive to common imaging artifacts and noise, delivering a stable framework for particle analysis in AFM. PMID- 29343782 TI - Protein phosphatase 5 regulates titin phosphorylation and function at a sarcomere associated mechanosensor complex in cardiomyocytes. AB - Serine/threonine protein phosphatase 5 (PP5) is ubiquitously expressed in eukaryotic cells; however, its function in cardiomyocytes is unknown. Under basal conditions, PP5 is autoinhibited, but enzymatic activity rises upon binding of specific factors, such as the chaperone Hsp90. Here we show that PP5 binds and dephosphorylates the elastic N2B-unique sequence (N2Bus) of titin in cardiomyocytes. Using various binding and phosphorylation tests, cell-culture manipulation, and transgenic mouse hearts, we demonstrate that PP5 associates with N2Bus in vitro and in sarcomeres and is antagonistic to several protein kinases, which phosphorylate N2Bus and lower titin-based passive tension. PP5 is pathologically elevated and likely contributes to hypo-phosphorylation of N2Bus in failing human hearts. Furthermore, Hsp90-activated PP5 interacts with components of a sarcomeric, N2Bus-associated, mechanosensor complex, and blocks mitogen-activated protein-kinase signaling in this complex. Our work establishes PP5 as a compartmentalized, well-controlled phosphatase in cardiomyocytes, which regulates titin properties and kinase signaling at the myofilaments. PMID- 29343784 TI - Tensile stress effect on epitaxial BiFeO3 thin film grown on KTaO3. AB - Comprehensive crystal structural study is performed for BiFeO3 (BFO) film grown on KTaO3 (KTO) substrate using transmission electron microscopy (TEM) and x-ray diffraction (XRD). Nano-beam electron diffraction (NBED) combined with structure factor calculation and high resolution TEM images clearly reveal that the crystal structure within BFO thin film is rhombohedral BFO, i.e., bulk BFO phase. Epitaxial relationship found by NBED indicates the BFO film grows in a manner that minimizes lattice mismatch with KTO. It further suggests BFO film is under slight biaxial tensile stress (~0.35%) along in-plane direction. XRD reveals BFO lattice is under compressive stress (~1.6%), along out-of-plane direction as a result of the biaxial tensile strain applied along in-plane direction. This leads to Poisson's ratio of ~0.68. In addition, we demonstrate (1) why hexagonal notation rather than pseudocubic one is required for accurate BFO phase evaluation and (2) a new XRD method that shows how rhombohedral BFO can readily be identified among other phases by measuring a rhombohedral specific Bragg's reflection. PMID- 29343785 TI - A patient-specific lumped-parameter model of coronary circulation. AB - A new lumped-parameter model for coronary hemodynamics is developed. This model is developed for the whole coronary network based on CT scans of a patient specific geometry including the right coronary tree, which is absent in many previous mathematical models. The model adopts the structured tree model boundary conditions similar to the work of Olufsen et al., thus avoiding the necessity of invasive perfusion measurements. In addition, we also incorporated the effects of the head loss at the two inlets of the large coronary arteries for the first time. The head loss could explain the phenomenon of a sudden increase of the resistance at the inlet of coronary vessel. The estimated blood pressure and flow rate results from the model agree well with the clinical measurements. The computed impedances also match the experimental perfusion measurement. The effects of coronary arterial stenosis are considered and the fractional flow reserve and relative flow in the coronary vessels for a stenotic vessel computed in this model show good agreement with published experimental data. It is believed that the approach could be readily translated to clinical practice to facilitate real time clinical diagnosis. PMID- 29343786 TI - AlGaInP Red LEDs with Hollow Hemispherical Polystyrene Arrays. AB - A hollow hemispherical polystyrene (HHPS) was fabricated to reduce total internal reflection in AlGaInP-based LEDs. At an injection current of 350 mA, the external quantum efficiencies of LED-I, LED-II, LED-III, and LED-IV are 20.92%, 24.65%, 27.28%, and 33.77% and the wall-plug efficiencies are 17.11%, 20%, 22.5%, and 27.33%, respectively. The enhanced performance is attributed to the light output power enhancement through the surface roughness, microlens-liked PS hemisphere, and scatter-liked HHPS array. In this paper, the rigorous coupled wave analysis (RCWA) numerical method was also conducted to demonstrate the HHPS array effectively enlarge the effective light cone. PMID- 29343787 TI - Author Correction: Comparison of bacterial microbiota of the predatory mite Neoseiulus cucumeris (Acari: Phytoseiidae) and its factitious prey Tyrophagus putrescentiae (Acari: Acaridae). AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29343788 TI - Multiple losses of photosynthesis and convergent reductive genome evolution in the colourless green algae Prototheca. AB - Autotrophic eukaryotes have evolved by the endosymbiotic uptake of photosynthetic organisms. Interestingly, many algae and plants have secondarily lost the photosynthetic activity despite its great advantages. Prototheca and Helicosporidium are non-photosynthetic green algae possessing colourless plastids. The plastid genomes of Prototheca wickerhamii and Helicosporidium sp. are highly reduced owing to the elimination of genes related to photosynthesis. To gain further insight into the reductive genome evolution during the shift from a photosynthetic to a heterotrophic lifestyle, we sequenced the plastid and nuclear genomes of two Prototheca species, P. cutis JCM 15793 and P. stagnora JCM 9641, and performed comparative genome analyses among trebouxiophytes. Our phylogenetic analyses using plastid- and nucleus-encoded proteins strongly suggest that independent losses of photosynthesis have occurred at least three times in the clade of Prototheca and Helicosporidium. Conserved gene content among these non-photosynthetic lineages suggests that the plastid and nuclear genomes have convergently eliminated a similar set of photosynthesis-related genes. Other than the photosynthetic genes, significant gene loss and gain were not observed in Prototheca compared to its closest photosynthetic relative Auxenochlorella. Although it remains unclear why loss of photosynthesis occurred in Prototheca, the mixotrophic capability of trebouxiophytes likely made it possible to eliminate photosynthesis. PMID- 29343789 TI - Three-dimensional migration behavior of juvenile salmonids in reservoirs and near dams. AB - To acquire 3-D tracking data on juvenile salmonids, Juvenile Salmon Acoustic Telemetry System (JSATS) cabled hydrophone arrays were deployed in the forebays of two dams on the Snake River and at a mid-reach reservoir between the dams. The depth distributions of fish were estimated by statistical analyses performed on large 3-D tracking data sets from ~33,500 individual acoustic tagged yearling and subyearling Chinook salmon and juvenile steelhead at the two dams in 2012 and subyearling Chinook salmon at the two dams and the mid-reach reservoir in 2013. This research investigated the correlation between vertical migration behavior and passage routes. The depth distributions of fish within the forebays of the dams were significantly different from fish passing the mid-reach reservoir. Fish residing deeper in the forebay tended to pass the dam using deeper powerhouse routes. This difference in depth distributions indicated that the depth distribution of fish at the mid-reach reservoir was not related to behaviors of fish passing through certain routes of the adjacent dams. For fish that were detected deeper than 17.5 m in the forebays, the probability of powerhouse passage (i.e., turbine) increased significantly. Another important finding was the variation in depth distributions during dam passage associated with the diel period, especially the crepuscular periods. PMID- 29343790 TI - Interference experiment with asymmetric double slit by using 1.2-MV field emission transmission electron microscope. AB - Advanced electron microscopy technologies have made it possible to perform precise double-slit interference experiments. We used a 1.2-MV field emission electron microscope providing coherent electron waves and a direct detection camera system enabling single-electron detections at a sub-second exposure time. We developed a method to perform the interference experiment by using an asymmetric double-slit fabricated by a focused ion beam instrument and by operating the microscope under a "pre-Fraunhofer" condition, different from the Fraunhofer condition of conventional double-slit experiments. Here, pre Fraunhofer condition means that each single-slit observation was performed under the Fraunhofer condition, while the double-slit observations were performed under the Fresnel condition. The interference experiments with each single slit and with the asymmetric double slit were carried out under two different electron dose conditions: high-dose for calculation of electron probability distribution and low-dose for each single electron distribution. Finally, we exemplified the distribution of single electrons by color-coding according to the above three types of experiments as a composite image. PMID- 29343791 TI - Single plasmid systems for inducible dual protein expression and for CRISPR Cas9/CRISPRi gene regulation in lactic acid bacterium Lactococcus lactis. AB - Lactococcus lactis is a food-grade lactic acid bacterium that is used in the dairy industry as a cell factory and as a host for recombinant protein expression. The nisin-controlled inducible expression (NICE) system is frequently applied in L. lactis; however new tools for its genetic modification are highly desirable. In this work NICE was adapted for dual protein expression. Plasmid pNZDual, that contains two nisin promoters and multiple cloning sites (MCSs), and pNZPolycist, that contains a single nisin promoter and two MCSs separated by the ribosome binding site, were constructed. Genes for the infrared fluorescent protein and for the human IgG-binding DARPin were cloned in all possible combinations to assess the protein yield. The dual promoter plasmid pNZDual enabled balanced expression of the two model proteins. It was exploited for the development of a single-plasmid inducible CRISPR-Cas9 system (pNZCRISPR) by using a nisin promoter, first to drive Cas9 expression and, secondly, to drive single guide RNA transcription. sgRNAs against htrA and ermR directed Cas9 against genomic or plasmid DNA and caused changes in bacterial growth and survival. Replacing Cas9 by dCas9 enabled CRISPR interference-mediated silencing of the upp gene. The present study introduces a new series of plasmids for advanced genetic modification of lactic acid bacterium L. lactis. PMID- 29343792 TI - Prebiotic formation of cyclic dipeptides under potentially early Earth conditions. AB - Cyclic dipeptides, also known as 2,5-diketopiperazines (DKPs), represent the simplest peptides that were first completely characterized. DKPs can catalyze the chiral selection of reactions and are considered as peptide precursors. The origin of biochemical chirality and synthesis of peptides remains abstruse problem believed to be essential precondition to origin of life. Therefore, it is reasonable to believe that the DKPs could have played a key role in the origin of life. How the formation of the DKPs through the condensation of unprotected amino acids in simulated prebiotic conditions has been unclear. Herein, it was found that cyclo-Pro-Pro could be formed directly from unprotected proline in the aqueous solution of trimetaphosphate (P3m) under mild condition with the yield up to 97%. Other amino acids were found to form proline-containing DKPs under the same conditions in spite of lower yield. During the formation process of these DKPs, P3m promotes the formation of linear dipeptides in the first step of the mechanism. The above findings are helpful and significant for understanding the formation of DKPs in the process of chemical evolution of life. PMID- 29343793 TI - nNOS-positive minor-branches of the dorsal penile nerves is associated with erectile function in the bilateral cavernous injury model of rats. AB - The changes in neuronal nitric oxide synthases (nNOS) in the dorsal penile nerves (DPNs) are consistent with cavernous nerve (CN) injury in rat models. However, the anatomical relationship and morphological changes between the minor branches of the DPNs and the CNs after injury have never been clearly explored. There were forty 12 week old male Sprague-Dawley rats receiving bilateral cavernous nerve injury (BCNI). Erectile function of intracavernous pressure and mean arterial pressure were measured. The histology and ultrastructure with H&E stain, Masson's trichrome stain and immunohistochemical stains were applied on the examination of CNs and DPNs. We demonstrated communicating nerve branches between the DPNs and the CNs in rats. The greatest damage and lowest erectile function were seen in the 14th day and partially recovered in the 28th day after BCNI. The nNOS positive DPN minor branches' number was significantly correlated with erectile function. The sub-analysis of the number of nNOS positive DPN minor branches also matched with the time course of the erectile function after BCNI. We suggest the regeneration of the DPNs minor branches would ameliorate the erectile function in BCNI rats. PMID- 29343794 TI - Bone regeneration using a porcine bone substitute collagen composite in vitro and in vivo. AB - The biocharacteristics of xenogeneic grafts make them a possible substitute for autogenous bone grafts in dental bone graft procedures. This study aimed to develop a novel porcine graft with collagen capable of generating new bone in bone defects via osteoconduction over 8 weeks of healing and to compare it with a porcine graft. The porcine collagen graft was made to undergo a cell viability test (MTT) and alkaline phosphatase assay (ALP). The surgical procedure was performed in 20 male adult New Zealand white rabbits. Four calvarial critical size defects of 6 mm in diameter were prepared in each rabbit. The upper left defect was filled with a porcine graft of 500-1000 MUm, the upper right with a porcine collagen graft, the lower left with hydroxyapatite/beta-tricalcium phosphate and the lower right served as the control without any filling material. The rabbits were divided and sacrificed at 2, 4, 6 and 8 weeks after surgery. Histological and micro-CT scan results showed that the performance of the porcine collagen graft is superior for regenerating new bone. Porcine collagen graft showed cell viability and osteoblast-like cell differentiation in vitro. The results indicate that porcine collagen graft is a potential bone substitute for clinical application. PMID- 29343795 TI - Recurrent wheezing in neonatal pneumonia is associated with combined infection with Respiratory Syncytial Virus and Staphylococcus aureus or Klebsiella pneumoniae. AB - Both viral and bacterial infections can be associated with wheezing episodes in children; however, information regarding combined infections with both viral and bacterial pathogens in full term neonates is limited. We sought to investigate the effects of viral-bacterial codetection on pneumonia severity and recurrent wheezing. A retrospective cohort study was conducted on neonates admitted to our hospital with pneumonia from 2009 to 2015. Of 606 total cases, 341 were diagnosed with RSV only, and 265 were diagnosed with both RSV and a potential bacterial pathogen. The leading four species of bacteria codetected with RSV were Escherichia coli, Klebsiella pneumoniae, Staphylococcus aureus and Enterobacter cloacae. Neonates with RSV and a potential bacterial pathogen were significantly more likely to have worse symptoms, higher C-reactive protein values and more abnormal chest x-ray manifestations with Bonferroni correction for multiple comparisons (P < 0.01). On Cox regression analysis, an increased risk of recurrent wheezing was found for neonates positive for RSV-Staphylococcus aureus and RSV-Klebsiella pneumoniae. Our findings indicate that the combination of bacteria and RSV in the neonatal airway is associated with more serious clinical characteristics. The presence of RSV and Staphylococcus aureus or Klebsiella pneumoniae may provide predictive markers for wheeze. PMID- 29343796 TI - Integrated climate-chemical indicators of diffuse pollution from land to water. AB - Management of agricultural diffuse pollution to water remains a challenge and is influenced by the complex interactions of rainfall-runoff pathways, soil and nutrient management, agricultural landscape heterogeneity and biogeochemical cycling in receiving water bodies. Amplified cycles of weather can also influence nutrient loss to water although they are less considered in policy reviews. Here, we present the development of climate-chemical indicators of diffuse pollution in highly monitored catchments in Western Europe. Specifically, we investigated the influences and relationships between weather processes amplified by the North Atlantic Oscillation during a sharp upward trend (2010-2016) and the patterns of diffuse nitrate and phosphorus pollution in rivers. On an annual scale, we found correlations between local catchment-scale nutrient concentrations in rivers and the influence of larger, oceanic-scale climate patterns defined by the intensity of the North Atlantic Oscillation. These influences were catchment-specific showing positive, negative or no correlation according to a typology. Upward trends in these decadal oscillations may override positive benefits of local management in some years or indicate greater benefits in other years. Developing integrated climate-chemical indicators into catchment monitoring indicators will provide a new and important contribution to water quality management objectives. PMID- 29343797 TI - Artificial Intelligence Estimation of Carotid-Femoral Pulse Wave Velocity using Carotid Waveform. AB - In this article, we offer an artificial intelligence method to estimate the carotid-femoral Pulse Wave Velocity (PWV) non-invasively from one uncalibrated carotid waveform measured by tonometry and few routine clinical variables. Since the signal processing inputs to this machine learning algorithm are sensor agnostic, the presented method can accompany any medical instrument that provides a calibrated or uncalibrated carotid pressure waveform. Our results show that, for an unseen hold back test set population in the age range of 20 to 69, our model can estimate PWV with a Root-Mean-Square Error (RMSE) of 1.12 m/sec compared to the reference method. The results convey the fact that this model is a reliable surrogate of PWV. Our study also showed that estimated PWV was significantly associated with an increased risk of CVDs. PMID- 29343799 TI - Publisher Correction: Bacillus SEVA siblings: A Golden Gate-based toolbox to create personalized integrative vectors for Bacillus subtilis. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29343798 TI - Structural and functional insights into S-thiolation of human serum albumins. AB - Human serum albumin (HSA) is the most abundant serum protein, contributing to the maintenance of redox balance in the extracellular fluids. One single free cysteine residue at position 34 is believed to be a target of oxidation. However, the molecular details and functions of oxidized HSAs remain obscure. Here we analyzed serum samples from normal subjects and hyperlipidemia patients and observed an enhanced S-thiolation of HSA in the hyperlipidemia patients as compared to the control individuals. Both cysteine and homocysteine were identified as the low molecular weight thiols bound to the HSAs. Intriguingly, S thiolations were observed not only at Cys34, but also at multiple cysteine residues in the disulfide bonds of HSA. When the serum albumins from genetically modified mice that exhibit high levels of total homocysteine in serum were analyzed, we observed an enhanced S-homocysteinylation at multiple cysteine residues. In addition, the cysteine residues in the disulfide bonds were also thiolated in recombinant HSA that had been treated with the disulfide molecules. These findings and the result that S-homocysteinylation mediated increased surface hydrophobicity and ligand binding activity of HSA offer new insights into structural and functional alternation of serum albumins via S-thiolation. PMID- 29343800 TI - Faecal shedding of rotavirus vaccine in Chinese children after vaccination with Lanzhou lamb rotavirus vaccine. AB - Lanzhou lamb rotavirus vaccine (LLR) is an oral live attenuated vaccine first licensed in China in 2000. To date, > 60 million doses of LLR have been distributed to children. However, very little is known about faecal shedding of LLR in children. Therefore, faecal samples (n = 1,184) were collected from 114 children for 15 days post-vaccination in September-November 2011/2012. Faecal shedding and viral loads were determined by an enzyme immunoassay kit (EIA) and real-time RT-PCR. The complete genome was sequenced and the vaccine strain was isolated by culture in MA104 cells. Approximately 14.0% (16/114) of children had rotavirus-positive samples by EIA for at least 1 day post-vaccination. Viral loads in EIA-positive samples ranged from < 1.0 * 103 to 1.9 * 108 copies/g. Faecal shedding occurred as early as post-vaccination day 2 and as late as post vaccination day 13 and peaked on post-vaccination day 5-10. One LLR strain was isolated by culture in MA104 cells. Sequence analysis showed 99% identity with LLR prototype strain. Faecal shedding of LLR in stool is common within 15 days of LLR vaccination, indicating vaccine strains can replicate in human enteric tissues. PMID- 29343801 TI - Dictionary learning-based reverberation removal enables depth-resolved photoacoustic microscopy of cortical microvasculature in the mouse brain. AB - Photoacoustic microscopy (PAM) capitalizes on the optical absorption of blood hemoglobin to enable label-free high-contrast imaging of the cerebral microvasculature in vivo. Although time-resolved ultrasonic detection equips PAM with depth-sectioning capability, most of the data at depths are often obscured by acoustic reverberant artifacts from superficial cortical layers and thus unusable. In this paper, we present a first-of-a-kind dictionary learning algorithm to remove the reverberant signal while preserving underlying microvascular anatomy. This algorithm was validated in vitro, using dyed beads embedded in an optically transparent polydimethylsiloxane phantom. Subsequently, we demonstrated in the live mouse brain that the algorithm can suppress reverberant artifacts by 21.0 +/- 5.4 dB, enabling depth-resolved PAM up to 500 um from the brain surface. PMID- 29343802 TI - Loss induced coherent combining in InP-Si3N4 hybrid platform. AB - Loss, as a time-reversed counterpart of gain, can also be used to control lasing in an optical system with coupled cavities. In this study, by manipulating mirror losses at different output ports of coupled Fabry-Perot cavities, an integrated coherently combined laser system is proposed and experimentally demonstrated in the InP-Si3N4 hybrid platform. Two InP-based reflective semiconductor amplifiers are coherently combined through an adiabatic 50:50 directional coupler in silicon nitride. The combining efficiency is ~92% at ~2* threshold. The novel system not only realizes the miniaturization of coherent laser beam combining but also provides a chip-scale platform to study the coherent coupling between coupled laser cavities. PMID- 29343803 TI - Targeted next generation sequencing in a young population with suspected inherited malignant cardiac arrhythmias. AB - Aborted sudden cardiac death in the young often is due to inherited heart disease. However, the clinical phenotype in these patients is not always evident. The aim of this study was to identify pathogenic molecular genetic variants in a population with suspected inherited cardiac arrhythmias. Eligible patients were admitted to Aarhus University Hospital, Denmark during the period 1999-2013 with arrhythmias assumed caused by a hereditary heart disease, and in whom no genotype had been established. We used the Danish national pacemaker and ICD registry to identify this cohort. One third (24/80) of the study population had first-line genetic testing with a targeted next-generation sequencing (NGS) panel, and two third (56/80) of the study population had second-line genetic testing with NGS where prior Sanger sequencing did not reveal a causative variant. Variants were assessed according to the American College of Medical Genetics and Genomics (ACMG) guidelines. We included 80 patients. Median age (IQR) was 38 (28-43) years, 54 (68%) were males. First-line genetic testing identified a genetic variant in 33% (8/24) of the cases and second-line genetic testing revealed a variant in 20% (11/56) of the cases. Eleven variants were considered pathogenic, three likely pathogenic and 10 were variants of unknown significance (VUS). Seventeen variants were very rare with a minor allele frequency (MAF) <=0.02% in all population databases used in the study. Molecular genetic testing of patients with suspected inherited cardiac arrhythmias with NGS identifies a molecular genetic cause in a significant proportion of patients. PMID- 29343804 TI - Compound heterozygous SPATA5 variants in four families and functional studies of SPATA5 deficiency. AB - Variants in the SPATA5 gene were recently described in a cohort of patients with global developmental delay, sensorineural hearing loss, seizures, cortical visual impairment and microcephaly. SPATA5 protein localizes predominantly in the mitochondria and is proposed to be involved in mitochondrial function and brain developmental processes. However no functional studies have been performed. This study describes five patients with psychomotor developmental delay, microcephaly, epilepsy and hearing impairment, who were thought clinically to have a mitochondrial disease with subsequent whole-exome sequencing analysis detecting compound heterozygous variants in the SPATA5 gene. A summary of clinical data of all the SPATA5 patients reported in the literature confirms the characteristic phenotype. To assess SPATA5's role in mitochondrial dynamics, functional studies were performed on rat cortical neurons. SPATA5-deficient neurons had a significant imbalance in the mitochondrial fusion-fission rate, impaired energy production and short axons. In conclusion, SPATA5 protein has an important role in mitochondrial dynamics and axonal growth. Biallelic variants in the SPATA5 gene can affect mitochondria in cortical neurons and should be considered in patients with a neurodegenerative disorder and/or with clinical presentation resembling a mitochondrial disorder. PMID- 29343806 TI - Effect of light-delignification on mechanical, hydrophobic, and thermal properties of high-strength molded fiber materials. AB - This study developed a high-strength molded fiber material (HMFM) using pulp fibers, which could be a good substitute for plastic and solid wood materials. The surface composition, microstructure and thermal properties of HMFM were investigated by XPS, SEM and DSC, respectively. The SEM observations showed that the obvious adhesive substances and agglomeration appeared among fibers, and the inter-fiber contact area and binding tightness increased after the light delignification. The XPS examination showed that the oxygen-rich composition on the outer surface of HMFM were reduced, and the outer surface coverage of lignin increased from 70.05% to 90.15% after the light-delignification. The DSC observation showed that the thermal stability of HMFM decreased, the temperature for the maximum rate of mass loss decreased from 370 degrees C to 345.6 degrees C, and the enthalpy value required for decomposition was reduced from 110.8 J/g to 68.0 J/g after the light-delignification. The mechanical and hydrophobic properties of HMFM were obviously improved after the light-delignification. When the content of lignin decreased from 24.9% to 11.45%, the density of HMFM increased by 6.0%, the tensile strength increased by 22.0%, the bending strength increased by 23.9%, and the water contact angle increased from 64.3 degrees -72.7 degrees to 80.8 degrees -84.3 degrees . PMID- 29343805 TI - Biallelic variants in KIF14 cause intellectual disability with microcephaly. AB - Kinesin proteins are critical for various cellular functions such as intracellular transport and cell division, and many members of the family have been linked to monogenic disorders and cancer. We report eight individuals with intellectual disability and microcephaly from four unrelated families with parental consanguinity. In the affected individuals of each family, homozygosity for likely pathogenic variants in KIF14 were detected; two loss-of-function (p.Asn83Ilefs*3 and p.Ser1478fs), and two missense substitutions (p.Ser841Phe and p.Gly459Arg). KIF14 is a mitotic motor protein that is required for spindle localization of the mitotic citron rho-interacting kinase, CIT, also mutated in microcephaly. Our results demonstrate the involvement of KIF14 in development and reveal a wide phenotypic variability ranging from fetal lethality to moderate developmental delay and microcephaly. PMID- 29343807 TI - House dust mite induced allergic airway disease is attenuated in CD11ccreIL 4Ralpha-/l degrees x mice. AB - The precise mechanisms leading to development of T helper type (Th)2-driven allergic responses are unknown. We aimed to determine how IL-4 receptor alpha (IL 4Ralpha) signaling on CD11c+ cells influences allergen-induced Th2 responses in mice. CD11ccreIL-4Ralpha-/l degrees x mice, deficient in IL-4Ralpha on dendritic cells and alveolar macrophages, were compared to IL-4Ralpha-/l degrees x littermate controls in models of allergic airway disease induced by OVA/alum, OVA alone or house dust mite. Cytokine responses, eosinophil and neutrophil infiltration into the lungs, airway hyperreactivity and mucus hypersecretion were evaluated after allergen challenge. In the OVA/alum model, CD11ccreIL-4Ralpha /lox mice had similar airway hyperreactivity, eosinophil infiltration, Th2-type cytokine production and mucus hypersecretion to littermate controls. When alum was omitted during sensitization, CD11ccreIL-4Ralpha-/lox mice had similar airway hyperreactivity and mucus secretion but reduced Th2-type cytokine production and eosinophils, suggesting alum overrides the requirement for IL-4Ralpha signaling on CD11c+ cells in enhancing Th2-type responses. In the house dust mite model, CD11ccreIL-4Ralpha-/lox mice showed similar mucus secretion, but reduced Th2 responses, eosinophils, neutrophils and airway hyperreactivity, unlike previously tested LysMcreIL-4Ralpha-/lox mice, which lack IL-4Ralpha on alveolar macrophages but not on dendritic cells. Therefore, our results indicate that IL-4Ralpha signaling on dendritic cells promotes allergen-induced Th2 responses and eosinophil infiltration into the lung. PMID- 29343808 TI - Stereotactic topography of the greater and third occipital nerves and its clinical implication. AB - This study aimed to provide topographic information of the greater occipital (GON) and third occipital (3ON) nerves, with the three-dimensional locations of their emerging points on the back muscles (60 sides, 30 cadavers) and their spatial relationship with muscle layers, using a 3D digitizer (Microscribe G2X, Immersion Corp, San Jose CA, USA). With reference to the external occipital protuberance (EOP), GON pierced the trapezius at a point 22.6 +/- 7.4 mm lateral and 16.3 +/- 5.9 mm inferior and the semispinalis capitis (SSC) at a point 13.1 +/- 6.0 mm lateral and 27.7 +/- 9.9 mm inferior. With the same reference, 3ON pierced, the trapezius at a point 12.9 +/- 9.3 mm lateral and 44.2 +/- 21.4 mm inferior, the splenius capitis at a point 10.0 +/- 5.3 mm lateral and 59.2 +/- 19.8 mm inferior, and SSC at a point 11.5 +/- 9.9 mm lateral and 61.4 +/- 15.3 mm inferior. Additionally, GON arose, winding up the obliquus capitis inferior, with the winding point located 52.3 +/- 11.7 mm inferior to EOP and 30.2 +/- 8.9 mm lateral to the midsagittal line. Knowing the course of GON and 3ON, from their emergence between vertebrae to the subcutaneous layer, is necessary for reliable nerve detection and precise analgesic injections. Moreover, stereotactic measurement using the 3D digitizer seems useful and accurate for neurovascular structure study. PMID- 29343809 TI - Interaction of smoking and metabolic syndrome in increasing the recurrence risk of colorectal cancer in a Chinese male cohort: a retrospective study. AB - Whether smoking and metabolic syndrome (MetS) can affect colorectal carcinoma (CRC) prognosis remains debatable. Therefore, the present study aimed to examine the individual and combined effects of smoking and MetS on the prognosis of patients with localized CRC, including stage I to III disease. The relationship among smoking status, MetS, and CRC was assessed in 838 Chinese male patients. Cox proportional hazards regression analysis was used to evaluate CRC prognosis adjusted for clinicopathological variables. Relative excess risk of interaction (RERI), attributable proportion (AP), and synergy index (SI) were used to evaluate additive interactions between smoking and MetS. The presence of MetS was an independent risk factor for low rates of recurrence-free survival (RFS) but not for overall survival (OS). However, smoking was independently associated with both poor RFS and OS. Furthermore, the recurrence risk for current smokers with MetS was 1.62 times as high as the sum of risks in patients exposed to each risk factor alone. In conclusion, current smoking habit is a risk factor for both recurrence and cancer-specific mortality in CRC patients, while MetS is an independent predictor for CRC recurrence. Furthermore, these two factors have an additive effect on the recurrence risk of CRC. PMID- 29343810 TI - Mitochondrial DNA damage and subsequent activation of Z-DNA binding protein 1 links oxidative stress to inflammation in epithelial cells. AB - This report identifies mitochondrial DNA (mtDNA) as a target and active mediator that links low-level oxidative stress to inflammatory response in pulmonary epithelial cells. Extrusion of mtDNA into the bronchoalveolar lavage fluid occurs as an early event in mice subjected to cigarette smoke injury, concomitantly with the depletion of mtDNA in the lung tissue. In cultured lung epithelial cells, prolonged, low-level oxidative stress damages the mtDNA, without any detectable damage to the nuclear DNA. In turn, cellular depletion of the mtDNA occurs, together with a transient remodeling of cellular bioenergetics and morphology - all without any detectable impairment in overall cell viability. Damaged mtDNA first enters the cytoplasm, where it binds to Z-DNA binding protein 1 (ZBP1) and triggers inflammation via the TANK-binding kinase 1 /interferon regulatory factor 3 signaling pathway. Fragments of the mtDNA are subsequently released into the extracellular space via exosomes. MtDNA-containing exosomes are capable of inducing an inflammatory response in naive (non-oxidatively stressed) epithelial cells. In vivo, administration of isolated mtDNA into the in lungs of naive mice induces the production of pro-inflammatory mediators, without histopathologic evidence of tissue injury. We propose that mtDNA-specific damage, and subsequent activation of the ZBP1 pathway, is a mechanism that links prolonged, low-level oxidative stress to autocrine and paracrine inflammation during the early stages of inflammatory lung disease. PMID- 29343812 TI - High albumin level is a predictor of favorable response to immunotherapy in autoimmune encephalitis. AB - There is no known biomarker that predicts the response to immune therapy in autoimmune synaptic encephalitis. Thus, we investigated serum albumin as a prognostic biomarker of early immune therapies in patients with autoimmune encephalitis. We enrolled patients who were diagnosed with definite autoimmune encephalitis and underwent IVIg treatment at Seoul National University Hospital from 2012 to 2017. Patients were dichotomized according to serum albumin prior to IVIg administration with a cut-off level of 4.0 g/dL, which was the median value of 50% of patients. Seventeen (53.1%) of the 32 patients with definite autoimmune encephalitis who received IVIg treatment in our hospital had low serum albumin (<4.0 g/dL). The initial disease severity (mRS >= 4) was the sole factor that predicted low albumin in autoimmune encephalitis patients using multivariate analysis (P = 0.013). The low albumin group exhibited a worse response to immune therapy at the third and fourth weeks from IVIg administration (P < 0.01 and P = 0.012, respectively), and recovery to activities of daily life without assistance was faster in the high albumin group (log-rank test for trend, P < 0.01). Our study found that pretreatment low serum albumin was a significant indicator of autoimmune encephalitis prognosis in the short-term and long-term. PMID- 29343811 TI - A procession of metabolic alterations accompanying muscle senescence in Manduca sexta. AB - Biological aging profoundly impairs muscle function, performance, and metabolism. Because the progression of metabolic alterations associated with aging muscle has not been chronicled, we tracked the metabolic profiles of flight muscle from middle to advanced age in Manduca sexta to identify key molecules during the progression of muscle aging, as well as to evaluate the utility of the M. sexta system for molecular dissection of muscle aging. We identified a number of differences between Diel Time, Sexes, and Muscle Ages, including changes in metabolites related to energetics, extracellular matrix turnover, and glutathione metabolism. Increased abundances of glycolytic metabolites suggest a shift toward increased glycolysis with advancing age, whereas decreased abundances in lysolipids and acylcarnitines reflect decreasing beta-oxidation. We also observed a shift towards decreased polyamine metabolism with age, which might result in an age-related decline in lipid metabolism possibly due to regulation of energy metabolism by polyamines. Collectively, our findings demonstrate the feasibility of our system and approach and provide a deeper understanding of lepidopteran aging. More importantly, the results identify the key altered metabolic pathways that collectively contribute to the muscle aging phenotype and thereby improve our understanding of muscle senescence. PMID- 29343813 TI - The Drosophila Gr28bD product is a non-specific cation channel that can be used as a novel thermogenetic tool. AB - Extrinsic control of single neurons and neuronal populations is a powerful approach for understanding how neural circuits function. Adding new thermogenetic tools to existing optogenetic and other forms of intervention will increase the complexity of questions that can be addressed. A good candidate for developing new thermogenetic tools is the Drosophila gustatory receptor family, which has been implicated in high-temperature avoidance behavior. We examined the five members of the Gr28b gene cluster for temperature-dependent properties via three approaches: biophysical characterization in Xenopus oocytes, functional calcium imaging in Drosophila motor neurons, and behavioral assays in adult Drosophila. Our results show that Gr28bD expression in Xenopus oocytes produces a non specific cationic current that is activated by elevated temperatures. This current is non-inactivating and non-voltage dependent. When expressed in Drosophila motor neurons, Gr28bD can be used to change the firing pattern of individual cells in a temperature-dependent fashion. Finally, we show that pan neuronal or motor neuron expression of Gr28bD can be used to alter fruit fly behavior with elevated temperatures. Together, these results validate the potential of the Gr28bD gene as a founding member of a new class of thermogenetic tools. PMID- 29343814 TI - Intrinsic apoptotic pathway activation increases response to anti-estrogens in luminal breast cancers. AB - Estrogen receptor-alpha positive (ERalpha+) breast cancer accounts for approximately 70-80% of the nearly 25,0000 new cases of breast cancer diagnosed in the US each year. Endocrine-targeted therapies (those that block ERalpha activity) serve as the first line of treatment in most cases. Despite the proven benefit of endocrine therapies, however, ERalpha+ breast tumors can develop resistance to endocrine therapy, causing disease progression or relapse, particularly in the metastatic setting. Anti-apoptotic Bcl-2 family proteins enhance breast tumor cell survival, often promoting resistance to targeted therapies, including endocrine therapies. Herein, we investigated whether blockade of anti-apoptotic Bcl-2 family proteins could sensitize luminal breast cancers to anti-estrogen treatment. We used long-term estrogen deprivation (LTED) of human ERalpha+ breast cancer cell lines, an established model of sustained treatment with and acquired resistance to aromatase inhibitors (AIs), in combination with Bcl-2/Bcl-xL inhibition (ABT-263), finding that ABT-263 induced only limited tumor cell killing in LTED-selected cells in culture and in vivo. Interestingly, expression and activity of the Bcl-2-related factor Mcl-1 was increased in LTED cells. Genetic Mcl-1 ablation induced apoptosis in LTED selected cells, and potently increased their sensitivity to ABT-263. Increased expression and activity of Mcl-1 was similarly seen in clinical breast tumor specimens treated with AI + the selective estrogen receptor downregulator fulvestrant. Delivery of Mcl-1 siRNA loaded into polymeric nanoparticles (MCL1 si NPs) decreased Mcl-1 expression in LTED-selected and fulvestrant-treated cells, increasing tumor cell death and blocking tumor cell growth. These findings suggest that Mcl-1 upregulation in response to anti-estrogen treatment enhances tumor cell survival, decreasing response to therapeutic treatments. Therefore, strategies blocking Mcl-1 expression or activity used in combination with endocrine therapies would enhance tumor cell death. PMID- 29343816 TI - Sclerotic bone lesions as a potential imaging biomarker for the diagnosis of tuberous sclerosis complex. AB - Tuberous-sclerosis-complex (TSC) is associated with a high lifetime risk of severe complications. Clinical manifestations are largely variable and diagnosis is often missed. Sclerotic-bone-lesions (SBL) could represent a potential imaging biomarker for the diagnosis of TSC. In this study, computed tomography (CT) data sets of 49 TSC patients (31 females) were included and compared to an age/sex matched control group. Imaging features of SBLs included frequency, size and location pattern. Sensitivities, specificities and cutoff values for the diagnosis of TSC were established for the skull, thorax, and abdomen/pelvis. In TSC patients, 3439 SBLs were detected, including 665 skull SBLs, 1426 thoracal SBLs and 1348 abdominal/pelvic SBLs. In the matched control-collective, 157 SBLs could be found. The frequency of SBLs enabled a reliable differentiation between TSC patients and the control collective with the following sensitivities and specificities. Skull: >=5 SBLs, 0.783, 1; thorax: >=4 SBLs, 0.967, 0.967; abdomen/pelvis: >=5 SBLs: 0.938, 0.906. SBL size was significantly larger compared to controls (p < 0.05). Based on the frequency, size and location pattern of SBLs TSC can be suspected. SBLs may serve as a potential imaging biomarker in the workup of TSC patients. PMID- 29343815 TI - MicroRNA-145-5p and microRNA-320a encapsulated in endothelial microparticles contribute to the progression of vasculitis in acute Kawasaki Disease. AB - Kawasaki Disease (KD) is an acute inflammatory disease that takes the form of systemic vasculitis. Endothelial microparticles (EMPs) have been recognized as an important transcellular delivery system. We hypothesized whether EMPs are involved in vasculitis in acute KD. Fifty patients with acute KD were enrolled, divided into two subgroups: those with coronary artery lesions (CAL) (n = 5) and those without CAL (NCAL) (n = 45). EMPs were measured using flow cytometry, and microRNA (miR) expression profiling was performed by microRNA array. The percentage of EMPs in acute KD was significantly higher than in controls (P < 0.0001). EMPs in patients with CAL rapidly increased after the initial treatment, and was significantly higher than those in NCAL (P < 0.001). In patients with CAL, we identified 2 specific miRs encapsulated in EMPs, hsa-miR-145-5p and hsa miR-320a, which are predicted to affect monocyte function using in silico analysis, and were demonstrated to upregulate inflammatory cytokine mRNAs in THP 1 monocytes. In situ hybridization confirmed that hsa-miR-145-5p was preferentially expressed in CAL. EMPs may serve as a sensitive marker for the severity of vasculitis in acute KD. Moreover, these 2 specific miRs encapsulated in EMPs might be involved in inflammatory cytokine regulation and the pathogenesis of vasculitis in acute KD. PMID- 29343817 TI - Associations between body mass index and the risk of renal events in patients with type 2 diabetes. AB - BACKGROUND/OBJECTIVES: We aimed to evaluate the relationship between BMI and the risk of renal disease in patients with type 2 diabetes in the Action in Diabetes and Vascular Disease: PreterAx and DiamicroN Modified-Release Controlled Evaluation (ADVANCE) study. SUBJECTS/METHODS: Participants were divided into six baseline BMI categories: <18.5 (underweight, n = 58); >=18.5 to <25 (normal, n = 2894); >=25 to <30 (overweight, n = 4340); >=30 to <35 (obesity grade 1, n = 2265); >=35 to <40 (obesity grade 2, n = 744); and >=40 kg/m2 (obesity grade 3, n = 294); those underweight were excluded. The composite outcome "major renal event" was defined as development of new macroalbuminuria, doubling of creatinine, end stage renal disease, or renal death. These outcomes and development of new microalbuminuria were considered individually as secondary endpoints. RESULTS: During 5-years of follow-up, major renal events occurred in 487 (4.6%) patients. The risk increased with higher BMI. Multivariable-adjusted HRs (95% CIs), compared to normal weight, were: 0.91 (0.72-1.15) for overweight; 1.03 (0.77-1.37) for obesity grade 1; 1.42 (0.98-2.07) for grade 2; and 2.16 (1.34-3.48) for grade 3 (p for trend = 0.006). These findings were similar across subgroups by randomised interventions (intensive versus standard glucose control and perindopril-indapamide versus placebo). Every additional unit of BMI over 25 kg/m2 increased the risk of major renal events by 4 (1-6)%. Comparable results were observed with the risk of secondary endpoints. CONCLUSIONS: Higher BMI is an independent predictor of major renal events in patients with type 2 diabetes. Our findings encourage weight loss to improve nephroprotection in these patients. PMID- 29343818 TI - A surfactant polymer dressing potentiates antimicrobial efficacy in biofilm disruption. AB - A 100% water-soluble surfactant polymer dressing (SPD) that is bio-compatible and non-ionic has been reported to improve wound closure in preliminary clinical studies. The mechanism of action of SPD in wound healing remains unclear. Biofilm infection is a significant problem that hinders proper wound closure. The objective of this study was to characterize the mechanism of action of SPD inhibition of bacterial biofilm development. Static biofilms (48 h) of the primary wound pathogens Pseudomonas aeruginosa (PA01), Staphylococcus aureus (USA300) were grown on polycarbonate membranes and treated with SPD with and without antibiotics for an additional 24 h. The standard antibiotics - tobramycin (10 MUg/ml) for PA01 and rifampicin (10 MUg/ml) for USA300, were used in these studies. Following 24 h treatment with and without antibiotics, the biofilms were characterized using scanning electron microscopy (SEM) structural imaging, in vitro imaging system (IVIS) proliferation imaging, colony forming units (CFU), viability assay, quantitative PCR (qPCR) for virulence gene expression. Because SPD is a surfactant based dressing, it potentially has a direct effect on Gram negative bacteria such as Pseudomonas primarily due to the lipid-based outer membrane of the bacteria. SPD is a surfactant based dressing that has potent anti biofilm properties directly or in synergy with antibiotics. PMID- 29343819 TI - Effects of silver nanocolloids on plant complex type N-glycans in Oryza sativa roots. AB - Silver nanomaterials have been mainly developed as antibacterial healthcare products worldwide, because of their antibacterial activity. However, there is little data regarding the potential risks and effects of large amounts of silver nanomaterials on plants. In contrast, N-glycans play important roles in various biological phenomena, and their structures and expressions are sensitive to ambient environmental changes. Therefore, to assesse the effects of silver nanomaterials, we focused on the correlation between N-glycans and the effects of silver nanomaterials in plants and analyzed N-glycan structures in Oryza sativa seedlings exposed to silver nanocolloids (SNCs). The phenotype analysis showed that the shoot was not affected by any SNC concentrations, whereas the high SNC exposed root was seriously damaged. Therefore, we performed comparative N-glycan analysis of roots. As a result, five of total N-glycans were significantly increased in SNC exposed roots, of which one was a free-N-glycan with one beta-N acetylglucosamine residue at the reducing end. Our results suggest that the transition of plant complex type N-glycans, including free-N-glycans, was caused by abnormalities in O. sativa development, and free-N-glycan itself has an important role in plant development. This study originally adapted glycome transition analysis to environmental toxicology and proposed a new category called "Environmental glycobiology". PMID- 29343820 TI - Increased left ventricular mass index is present in patients with type 2 diabetes without ischemic heart disease. AB - Left ventricular mass index (LVMI) increase has been described in hypertension (HTN), but less is known about its association with type 2 diabetes (T2DM). As these conditions frequently co-exist, we investigated the association of T2DM, HTN and both with echocardiographic parameters, and hypothesized that patients with both had highest LVMI, followed by patients with only T2DM or HTN. Study population included 101 T2DM patients, 62 patients with HTN and no T2DM, and 76 patients with T2DM and HTN, excluded for ischemic heart disease. Demographic and clinical data, biochemical measurements, stress echocardiography, transthoracic 2D Doppler and tissue Doppler echocardiography were performed. Multivariable logistic regression was used to determine the independent association with T2DM. Linear regression models and Pearson's correlation were used to assess the correlations between LVMI and other parameters. Patients with only T2DM had significantly greater LVMI (84.9 +/- 20.3 g/m2) compared to patients with T2DM and HTN (77.9 +/- 16 g/m2) and only HTN (69.8 +/- 12.4 g/m2). In multivariate logistic regression analysis, T2DM was associated with LVMI (OR 1.033, 95%CI 1.003-1.065, p = 0.029). A positive correlation of LVMI was found with fasting glucose (p < 0.001) and HbA1c (p = 0.0003). Increased LVMI could be a potential, pre-symptomatic marker of myocardial structural change in T2DM. PMID- 29343821 TI - Focal hyperintensity in the dorsal brain stem of patients with cerebellopontine angle tumor: A high-resolution 3 T MRI study. AB - Focal hyperintensity (FHI) in the dorsal brain stem on T2-weighted images of patients with cerebellopontine angle (CPA) tumor was thought to indicate degeneration of the vestibular nucleus and to be specific to vestibular schwannoma. The purpose of this study was to evaluate FHI by using high resolution 3 Tesla magnetic resonance imaging (3 T MRI) and the relation to clinical characteristics. We retrospectively reviewed the clinical data and MRI of 45 patients with CPA tumors (34 vestibular schwannomas and 11 other tumors). FHI in the dorsal brain stem was found in 25 (55.6%) patients (20 vestibular schwannomas and 5 other tumors). For the vestibular schwannomas, the factors contributing to positive FHI were age (p = 0.025), max CPA (p = < 0.001), hearing ability (P = 0.005), and canal paresis (p = < 0.001) in the univariate analysis. Multivariate regression analysis showed that max CPA (p = 0.029) was a significant factor of positive FHI. In other CPA tumors, these factors were not significant predictors. With the use of 3 T MRI, FHI was observed more frequently than previously reported. Our results suggest that FHI is not a specific indicator of vestibular schwannoma and is related to not only vestibular function but also other factors. PMID- 29343823 TI - Methods and extractants to evaluate silicon availability for sugarcane. AB - The correct evaluation of silicon (Si) availability in different soil types is critical in defining the amount of Si to be supplied to crops. This study was carried out to evaluate two methods and five chemical Si extractants in clayey, sandy-loam, and sandy soils cultivated with sugarcane (Saccharum spp. hybrids). Soluble Si was extracted using two extraction methods (conventional and microwave oven) and five Si extractants (CaCl2, deionized water, KCl, Na-acetate buffer (pH 4.0), and acetic acid). No single method and/or extractant adequately estimated the Si availability in the soils. Conventional extraction with KCl was no more effective than other methods in evaluating Si availability; however, it had less variation in estimating soluble Si between soils with different textural classes. In the clayey and sandy soils, the Na-acetate buffer (pH 4.0) and acetic acid were effective in evaluating the Si availability in the soil regardless of the extraction methods. The extraction with acetic acid using the microwave oven, however, overestimated the Si availability. In the sandy-loam soil, extraction with deionized water using the microwave oven method was more effective in estimating the Si availability in the soil than the other extraction methods. PMID- 29343822 TI - The MICALs are a Family of F-actin Dismantling Oxidoreductases Conserved from Drosophila to Humans. AB - Cellular form and function - and thus normal development and physiology - are specified via proteins that control the organization and dynamic properties of the actin cytoskeleton. Using the Drosophila model, we have recently identified an unusual actin regulatory enzyme, Mical, which is directly activated by F-actin to selectively post-translationally oxidize and destabilize filaments - regulating numerous cellular behaviors. Mical proteins are also present in mammals, but their actin regulatory properties, including comparisons among different family members, remain poorly defined. We now find that each human MICAL family member, MICAL-1, MICAL-2, and MICAL-3, directly induces F-actin dismantling and controls F-actin-mediated cellular remodeling. Specifically, each human MICAL selectively associates with F-actin, which directly induces MICALs catalytic activity. We also find that each human MICAL uses an NADPH-dependent Redox activity to post-translationally oxidize actin's methionine (M) M44/M47 residues, directly dismantling filaments and limiting new polymerization. Genetic experiments also demonstrate that each human MICAL drives F-actin disassembly in vivo, reshaping cells and their membranous extensions. Our results go on to reveal that MsrB/SelR reductase enzymes counteract each MICAL's effect on F-actin in vitro and in vivo. Collectively, our results therefore define the MICALs as an important phylogenetically-conserved family of catalytically-acting F-actin disassembly factors. PMID- 29343824 TI - Human Papillomavirus Prophylactic Vaccination improves reproductive outcome in infertile patients with HPV semen infection: a retrospective study. AB - In this study we aimed to evaluate the effect on reproductive outcome of HPV vaccination in male subjects of infertile couples with HPV semen infection. In this single-center study, we retrospectively enrolled 151 infertile couples with detection of HPV in semen, attending our Hospital Unit of Andrology between January 2013 and June 2015, counseled to receive adjuvant HPV vaccination. Seventy-nine accepted vaccination (vaccine group) whilst 72 did not (control group). Our protocol of follow-up, aimed to evaluate HPV viral clearance, consisted in semen analysis, INNO-LiPA and FISH for HPV in semen cells after 6 and 12 months from basal evaluation. Spontaneous pregnancies, miscarriages and live births were recorded. Progressive sperm motility and anti-sperm antibodies were improved in the vaccine group at both time points (p < 0,05 vs control arm). Forty-one pregnancies, 11 in the control group and 30 in the vaccine group, were recorded (respectively 15% and 38,9%, p < 0,05) and resulted into 4 deliveries and 7 miscarriages (control group) and 29 deliveries and one miscarriage (vaccine group, p < 0,05 vs control group). HPV detection on sperms was predictive of negative pregnancy outcome. Adjuvant vaccination associated with enhanced HPV healing in semen cells and increased rate of natural pregnancies and live births. PMID- 29343825 TI - A Survey of Validation Strategies for CRISPR-Cas9 Editing. AB - The T7 endonuclease 1 (T7E1) mismatch detection assay is a widely used method for evaluating the activity of site-specific nucleases, such as the clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 system. To determine the accuracy and sensitivity of this assay, we compared the editing estimates derived by the T7E1 assay with that of targeted next-generation sequencing (NGS) in pools of edited mammalian cells. Here, we report that estimates of nuclease activity determined by T7E1 most often do not accurately reflect the activity observed in edited cells. Editing efficiencies of CRISPR Cas9 complexes with similar activity by T7E1 can prove dramatically different by NGS. Additionally, we compared editing efficiencies predicted by the Tracking of Indels by Decomposition (TIDE) assay and the Indel Detection by Amplicon Analysis (IDAA) assay to that observed by targeted NGS for both cellular pools and single cell derived clones. We show that targeted NGS, TIDE, and IDAA assays predict similar editing efficiencies for pools of cells but that TIDE and IDAA can miscall alleles in edited clones. PMID- 29343826 TI - Mammalian sterile 20 kinase 1 and 2 are important regulators of hematopoietic stem cells in stress condition. AB - The mammalian Hippo signaling pathway has been implicated in the self-renewal and differentiation of stem and progenitor cells. MST1 and MST2 (MST1/2) are core serine-threonine kinases in the Hippo signaling pathway, one of which, MST1, has been extensively investigated for its role in T cell and myeloid cell function. These studies have identified MST1 as a promising therapeutic target in immunological disease. However, the roles of MST1/2 in hematopoietic stem cell (HSC) function in vivo are not fully understood. Here, we report that mice with a conditional deletion of Mst1/2 exhibit impaired hematopoietic stem and progenitor cell (HSPC) function under stress condition. Furthermore, Mst1/2 deletion markedly altered mature cell output. Therefore, MST1/2 are indispensable for maintenance as well as function of stem and progenitor cells under steady state conditions and with transplantation stress. PMID- 29343828 TI - Widespread persistent changes to temperature extremes occurred earlier than predicted. AB - A critical question for climate mitigation and adaptation is to understand when and where the signal of changes to climate extremes have persistently emerged or will emerge from the background noise of climate variability. Here we show observational evidence that such persistent changes to temperature extremes have already occurred over large parts of the Earth. We further show that climate models forced with natural and anthropogenic historical forcings underestimate these changes. In particular, persistent changes have emerged in observations earlier and over a larger spatial extent than predicted by models. The delayed emergence in the models is linked to a combination of simulated change ('signal') that is weaker than observed, and simulated variability ('noise') that is greater than observed. Over regions where persistent changes had not occurred by the year 2000, we find that most of the observed signal-to-noise ratios lie within the 16 84% range of those simulated. Examination of simulations with and without anthropogenic forcings provides evidence that the observed changes are more likely to be anthropogenic than nature in origin. Our findings suggest that further changes to temperature extremes over parts of the Earth are likely to occur earlier than projected by the current climate models. PMID- 29343827 TI - Targeted NUDT5 inhibitors block hormone signaling in breast cancer cells. AB - With a diverse network of substrates, NUDIX hydrolases have emerged as a key family of nucleotide-metabolizing enzymes. NUDT5 (also called NUDIX5) has been implicated in ADP-ribose and 8-oxo-guanine metabolism and was recently identified as a rheostat of hormone-dependent gene regulation and proliferation in breast cancer cells. Here, we further elucidate the physiological relevance of known NUDT5 substrates and underscore the biological requirement for NUDT5 in gene regulation and proliferation of breast cancer cells. We confirm the involvement of NUDT5 in ADP-ribose metabolism and dissociate a relationship to oxidized nucleotide sanitation. Furthermore, we identify potent NUDT5 inhibitors, which are optimized to promote maximal NUDT5 cellular target engagement by CETSA. Lead compound, TH5427, blocks progestin-dependent, PAR-derived nuclear ATP synthesis and subsequent chromatin remodeling, gene regulation and proliferation in breast cancer cells. We herein present TH5427 as a promising, targeted inhibitor that can be used to further study NUDT5 activity and ADP-ribose metabolism. PMID- 29343830 TI - Biological rejuvenation of iron oxides in bioturbated marine sediments. AB - The biogeochemical cycle of iron is intricately linked to numerous element cycles. Although biological processes that catalyze the reductive side of the iron cycle are established, little is known about microbial oxidative processes on iron cycling in sedimentary environments-resulting in the formation of iron oxides. Here we show that a potential source of sedimentary iron oxides originates from the metabolic activity of iron-oxidizing bacteria from the class Zetaproteobacteria, presumably enhanced by burrowing animals in coastal sediments. Zetaproteobacteria were estimated to be a global total of 1026 cells in coastal, bioturbated sediments, and predicted to annually produce 8 * 1015 g of Fe in sedimentary iron oxides-55 times larger than the annual flux of iron oxides deposited by rivers. These data suggest that iron-oxidizing Zetaproteobacteria are keystone organisms in marine sedimentary environments despite their low numerical abundance-yet exert a disproportionate impact via the rejuvenation of iron oxides. PMID- 29343829 TI - Targeted inhibitors of P-glycoprotein increase chemotherapeutic-induced mortality of multidrug resistant tumor cells. AB - Overexpression of ATP-binding cassette (ABC) transporters is often linked to multidrug resistance (MDR) in cancer chemotherapies. P-glycoprotein (P-gp) is one of the best studied drug transporters associated with MDR. There are currently no approved drugs available for clinical use in cancer chemotherapies to reverse MDR by inhibiting P-glycoprotein. Using computational studies, we previously identified several compounds that inhibit P-gp by targeting its nucleotide binding domain and avoiding its drug binding domains. Several of these compounds showed successful MDR reversal when tested on a drug resistant prostate cancer cell line. Using conventional two-dimensional cell culture of MDR ovarian and prostate cancer cells and three dimensional prostate cancer microtumor spheroids, we demonstrated here that co-administration with chemotherapeutics significantly decreased cell viability and survival as well as cell motility. The P-gp inhibitors were not observed to be toxic on their own. The inhibitors increased cellular retention of chemotherapeutics and reporter compounds known to be transport substrates of P-gp. We also showed that these compounds are not transport substrates of P-gp and that two of the three inhibit P-gp, but not the closely related ABC transporter, ABCG2/BCRP. The results presented suggest that these P-gp inhibitors may be promising leads for future drug development. PMID- 29343831 TI - Novel hydrogenases from deep-sea hydrothermal vent metagenomes identified by a recently developed activity-based screen. AB - Hydrogen is one of the most common elements on Earth. The enzymes converting molecular hydrogen into protons and electrons are the hydrogenases. Hydrogenases are ubiquitously distributed in all three domains of life where they play a central role in cell metabolism. So far, the recovery of hydrogenases has been restricted to culture-dependent and sequence-based approaches. We have recently developed the only activity-based screen for seeking H2-uptake enzymes from metagenomes without having to rely on enrichment and isolation of hydrogen oxidizing microorganisms or prior metagenomic sequencing. When screening 14,400 fosmid clones from three hydrothermal vent metagenomes using this solely activity based approach, four clones with H2-uptake activity were identified with specific activities of up to 258 +/- 19 nmol H2/min/mg protein of partially purified membrane fractions. The respective metagenomic fragments exhibited mostly very low or no similarities to sequences in the public databases. A search with hidden Markov models for different hydrogenase groups showed no hits for three of the four metagenomic inserts, indicating that they do not encode for classical hydrogenases. Our activity-based screen serves as a powerful tool for the discovery of (novel) hydrogenases which would not have been identified by the currently available techniques. This screen can be ideally combined with culture- and sequence-based approaches to investigate the tremendous hydrogen-converting potential in the environment. PMID- 29343832 TI - Infection dynamics of insecticide-degrading symbionts from soil to insects in response to insecticide spraying. AB - Insecticide resistance is a serious concern in modern agriculture, and an understanding of the underlying evolutionary processes is pivotal to prevent the problem. The bean bug Riptortus pedestris, a notorious pest of leguminous crops, acquires a specific Burkholderia symbiont from the environment every generation, and harbors the symbiont in the midgut crypts. The symbiont's natural role is to promote insect development but the insect host can also obtain resistance against the insecticide fenitrothion (MEP) by acquiring MEP-degrading Burkholderia from the environment. To understand the developing process of the symbiont-mediated MEP resistance in response to the application of the insecticide, we investigated here in parallel the soil bacterial dynamics and the infected gut symbionts under different MEP-spraying conditions by culture-dependent and culture-independent analyses, in conjunction with stinkbug rearing experiments. We demonstrate that MEP application did not affect the total bacterial soil population but significantly decreased its diversity while it dramatically increased the proportion of MEP-degrading bacteria, mostly Burkholderia. Moreover, we found that the infection of stinkbug hosts with MEP-degrading Burkholderia is highly specific and efficient, and is established after only a few times of insecticide spraying at least in a field soil with spraying history, suggesting that insecticide resistance could evolve in a pest bug population more quickly than was thought before. PMID- 29343834 TI - Newly discovered Late Triassic Baqing eclogite in central Tibet indicates an anticlockwise West-East Qiangtang collision. AB - The Triassic eclogite-bearing central Qiangtang metamorphic belt (CQMB) in the northern Tibetan Plateau has been debated whether it is a metamorphic core complex underthrust from the Jinsha Paleo-Tethys or an in-situ Shuanghu suture. The CQMB is thus a key issue to elucidate the crustal architecture of the northern Tibetan Plateau, the tectonics of the eastern Tethys, and the petrogenesis of Cenozoic high-K magmatism. We here report the newly discovered Baqing eclogite along the eastern extension of the CQMB near the Baqing town, central Tibet. These eclogites are characterized by the garnet + omphacite + rutile + phengite + quartz assemblages. Primary eclogite-facies metamorphic pressure-temperature estimates yield consistent minimum pressure of 25 +/- 1 kbar at 730 +/- 60 degrees C. U-Pb dating on zircons that contain inclusions (garnet + omphacite + rutile + phengite) gave eclogite-facies metamorphic ages of 223 Ma. The geochemical continental crustal signature and the presence of Paleozoic cores in the zircons indicate that the Baqing eclogite formed by continental subduction and marks an eastward-younging anticlockwise West-East Qiangtang collision along the Shuanghu suture from the Middle to Late Triassic. PMID- 29343833 TI - Dopamine D3 receptor antagonist reveals a cryptic pocket in aminergic GPCRs. AB - The recent increase in the number of X-ray crystal structures of G-protein coupled receptors (GPCRs) has been enabling for structure-based drug design (SBDD) efforts. These structures have revealed that GPCRs are highly dynamic macromolecules whose function is dependent on their intrinsic flexibility. Unfortunately, the use of static structures to understand ligand binding can potentially be misleading, especially in systems with an inherently high degree of conformational flexibility. Here, we show that docking a set of dopamine D3 receptor compounds into the existing eticlopride-bound dopamine D3 receptor (D3R) X-ray crystal structure resulted in poses that were not consistent with results obtained from site-directed mutagenesis experiments. We overcame the limitations of static docking by using large-scale high-throughput molecular dynamics (MD) simulations and Markov state models (MSMs) to determine an alternative pose consistent with the mutation data. The new pose maintains critical interactions observed in the D3R/eticlopride X-ray crystal structure and suggests that a cryptic pocket forms due to the shift of a highly conserved residue, F6.52. Our study highlights the importance of GPCR dynamics to understand ligand binding and provides new opportunities for drug discovery. PMID- 29343835 TI - A non-zircon Hf isotope record in Archean black shales from the Pilbara craton confirms changing crustal dynamics ca. 3 Ga ago. AB - Plate tectonics and associated subduction are unique to the Earth. Studies of Archean rocks show significant changes in composition and structural style around 3.0 to 2.5 Ga that are related to changing tectonic regime, possibly associated with the onset of subduction. Whole rock Hf isotope systematics of black shales from the Australian Pilbara craton, selected to exclude detrital zircon components, are employed to evaluate the evolution of the Archean crust. This approach avoids limitations of Hf-in-zircon analyses, which only provide input from rocks of sufficient Zr-concentration, and therefore usually represent domains that already underwent a degree of differentiation. In this study, we demonstrate the applicability of this method through analysis of shales that range in age from 3.5 to 2.8 Ga, and serve as representatives of their crustal sources through time. Their Hf isotopic compositions show a trend from strongly positive epsilonHfinitial values for the oldest samples, to strongly negative values for the younger samples, indicating a shift from juvenile to differentiated material. These results confirm a significant change in the character of the source region of the black shales by 3 Ga, consistent with models invoking a change in global dynamics from crustal growth towards crustal reworking around this time. PMID- 29343836 TI - BPX-501 T cells interfere with minimal residual disease evaluation of B-cell acute lymphoblastic leukemia. PMID- 29343838 TI - Estimating the impact of body mass index on bladder cancer risk: Stratification by smoking status. AB - We estimated the impact of obesity on bladder cancer with stratification by smoking status using nationally representative data on the Korean population from the National Health Insurance System (NHIS). Of the 45,850,458 people who underwent at last one health examination from 2009 to 2012, 23,378,895 without bladder cancer were followed from the January 2009 to the December 2015. First, the HR for bladder cancer was lowest in people with a BMI < 18.5 (HR = 0.92) and highest for those with BMI >= 30 (HR = 1.17) in multiple Cox regression analyses. The positive association between bladder cancer and BMI showed an increasing trend beyond the reference BMI. Second, an analysis of HR for bladder cancer stratified by obesity across smoking status strata showed a significant trend of increasing HR for bladder cancer across obesity and smoking status in multivariate-adjusted models. Conclusively, this population-based study showed that increasing BMI was a risk factor for bladder cancer independent of confounding variables. When stratified by smoking status, there was still a positive association between bladder cancer and BMI (P for trend < 0.01). PMID- 29343839 TI - Musical auditory stimulus acutely influences heart rate dynamic responses to medication in subjects with well-controlled hypertension. AB - Music can improve the efficiency of medical treatment when correctly associated with drug action, reducing risk factors involving deteriorating cardiac function. We evaluated the effect of musical auditory stimulus associated with anti hypertensive medication on heart rate (HR) autonomic control in hypertensive subjects. We evaluated 37 well-controlled hypertensive patients designated for anti-hypertensive medication. Heart rate variability (HRV) was calculated from the HR monitor recordings of two different, randomly sorted protocols (control and music) on two separate days. Patients were examined in a resting condition 10 minutes before medication and 20 minutes, 40 minutes and 60 minutes after oral medication. Music was played throughout the 60 minutes after medication with the same intensity for all subjects in the music protocol. We noted analogous response of systolic and diastolic arterial pressure in both protocols. HR decreased 60 minutes after medication in the music protocol while it remained unchanged in the control protocol. The effects of anti-hypertensive medication on SDNN (Standard deviation of all normal RR intervals), LF (low frequency, nu), HF (high frequency, nu) and alpha-1 scale were more intense in the music protocol. In conclusion, musical auditory stimulus increased HR autonomic responses to anti hypertensive medication in well-controlled hypertensive subjects. PMID- 29343840 TI - Vision Status in Older Adults: The Brazilian Amazon Region Eye Survey. AB - Older adults living in remote areas with limited access to health services are at higher risk to develop visual impairment and blindness. We conducted a population based survey to determine the vision status in subjects 45 years of age and older from urban and rural areas of Parintins city, Brazilian Amazon Region. Participants underwent ophthalmic examination, including uncorrected (UCVA), presenting (PVA) and best-corrected visual acuity (BCVA). Vision status was described as lines of visual acuity (VA) impairment and lines of VA improvement from UCVA to BCVA and from PVA to BCVA in the better-seeing eye. A total of 2384 subjects were enumerated, 2041 (85.6%) were examined, with reliable VA measurements obtained from 2025 participants. Vision status in lines of VA impairment was (mean +/- standard deviation): 3.44 +/- 3.53 for UCVA, 2.85 +/- 3.52 for PVA and 1.50 +/- 3.51 for BCVA. Female gender, older age and lower education were associated with >=6 lines of UCVA impairment. Lines of improvement >=3 was found in 626 (30.9%) participants and associated with female gender and rural residency. In conclusion, a third of participants could have at least three lines of VA improvement with proper refraction. Strategies to improve access to eye care and affordable glasses are needed. PMID- 29343837 TI - Neurocognitive dysfunction in hematopoietic cell transplant recipients: expert review from the late effects and Quality of Life Working Committee of the CIBMTR and complications and Quality of Life Working Party of the EBMT. AB - Hematopoietic cell transplantation (HCT) is a potentially curative treatment for children and adults with malignant and non-malignant diseases. Despite increasing survival rates, long-term morbidity following HCT is substantial. Neurocognitive dysfunction is a serious cause of morbidity, yet little is known about neurocognitive dysfunction following HCT. To address this gap, collaborative efforts of the Center for International Blood and Marrow Transplant Research and the European Society for Blood and Marrow Transplantation undertook an expert review of neurocognitive dysfunction following HCT. In this review, we define what constitutes neurocognitive dysfunction, characterize its risk factors and sequelae, describe tools and methods to assess neurocognitive function in HCT recipients, and discuss possible interventions for HCT patients with this condition. This review aims to help clinicians understand the scope of this health-related problem, highlight its impact on well-being of survivors, and to help determine factors that may improve identification of patients at risk for declines in cognitive functioning after HCT. In particular, we review strategies for preventing and treating neurocognitive dysfunction in HCT patients. Lastly, we highlight the need for well-designed studies to develop and test interventions aimed at preventing and improving neurocognitive dysfunction and its sequelae following HCT. PMID- 29343841 TI - Microdosimetric Modeling of Biological Effectiveness for Boron Neutron Capture Therapy Considering Intra- and Intercellular Heterogeneity in 10B Distribution. AB - We here propose a new model for estimating the biological effectiveness for boron neutron capture therapy (BNCT) considering intra- and intercellular heterogeneity in 10B distribution. The new model was developed from our previously established stochastic microdosimetric kinetic model that determines the surviving fraction of cells irradiated with any radiations. In the model, the probability density of the absorbed doses in microscopic scales is the fundamental physical index for characterizing the radiation fields. A new computational method was established to determine the probability density for application to BNCT using the Particle and Heavy Ion Transport code System PHITS. The parameters used in the model were determined from the measured surviving fraction of tumor cells administrated with two kinds of 10B compounds. The model quantitatively highlighted the indispensable need to consider the synergetic effect and the dose dependence of the biological effectiveness in the estimate of the therapeutic effect of BNCT. The model can predict the biological effectiveness of newly developed 10B compounds based on their intra- and intercellular distributions, and thus, it can play important roles not only in treatment planning but also in drug discovery research for future BNCT. PMID- 29343843 TI - Cathelicidin-OA1, a novel antioxidant peptide identified from an amphibian, accelerates skin wound healing. AB - Cathelicidins play pivotal roles in host defense. The discovery of novel cathelicidins is important research; however, despite the identification of many cathelicidins in vertebrates, few have been reported in amphibians. Here we identified a novel cathelicidin (named cathelicidin-OA1) from the skin of an amphibian species, Odorrana andersonii. Produced by posttranslational processing of a 198-residue prepropeptide, cathelicidin-OA1 presented an amino acid sequence of 'IGRDPTWSHLAASCLKCIFDDLPKTHN' and a molecular mass of 3038.5 Da. Functional analysis showed that, unlike other cathelicidins, cathelicidin-OA1 demonstrated no direct microbe-killing, acute toxicity and hemolytic activity, but did exhibit antioxidant activity. Importantly, cathelicidin-OA1 accelerated wound healing against human keratinocytes (HaCaT) and skin fibroblasts (HSF) in both time- and dose-dependent manners. Notably, cathelicidin-OA1 also showed wound-healing promotion in a mouse model with full-thickness skin wounds, accelerating re epithelialization and granulation tissue formation by enhancing the recruitment of macrophages to the wound site, inducing HaCaT cell proliferation and HSF cell migration. This is the first cathelicidin identified from an amphibian that shows potent wound-healing activity. These results will help in the development of new types of wound-healing agents and in our understanding of the biological functions of cathelicidins. PMID- 29343844 TI - Determinants of population responses to environmental fluctuations. AB - Environmental fluctuations, such as changing conditions and variable nutrient availability, are an unavoidable component of the dynamics of virtually all populations. They affect populations in ways that are often difficult to predict and sometimes lead to paradoxical outcomes. Here, we present a general analytical approach to examine how populations respond to fluctuations. We show that there exist general explicit conditions that determine to what extent fluctuations propagate to the variability of the responses and how they change the behavior of the system, including whether they promote proliferation or death and whether they facilitate coexistence or exclusion of competing species. These conditions depend on linear and nonlinear terms of the growth rate and on the characteristic times of the fluctuations. We validated our general approach through computational experiments for both stochastic and chaotic fluctuations and for multiple types of systems. From an applied point of view, our results provide an avenue for the precise control of the population behavior through fluctuations in addition to just through average properties. PMID- 29343842 TI - Leptin resistance was involved in susceptibility to overweight in the striped hamster re-fed with high fat diet. AB - Food restriction (FR) is the most commonly used intervention to prevent the overweight. However, the lost weight is usually followed by "compensatory growth" when FR ends, resulting in overweight. The present study was aimed to examining the behavior patterns and hormones mechanisms underpinning the over-weight. Energy budget and body fat content, and several endocrine markers related to leptin signals were examined in the striped hamsters under 20% FR refed by either low-fat diet (LF group) or high-fat diet (HF group). Body mass and fat content significantly regained when FR ended, and the hamsters in HF group showed 49.1% more body fat than in LF group (P < 0.01). Digestive energy intake was higher by 20.1% in HF than LF group, while metabolic thermogenesis and behavior patterns did not differed between the two groups. Gene expression of leptin receptor and anorexigenic peptides of pro-opiomelanocortin and cocaine- and amphetamine regulated transcript in hypothalamus were significantly up-regulated in LF group, but down-regulated in HF group. It suggests that effective leptin signals to the brain were involved in attenuation of hyperphagia in hamsters refed with LF. However, "leptin resistance" probably occurred in hamsters refed with HF, which impaired the control of hyperphagia, resulting in development of over-weight. PMID- 29343845 TI - Metal-free magnetism, spin-dependent Seebeck effect, and spin-Seebeck diode effect in armchair graphene nanoribbons. AB - Metal-free magnetism and spin caloritronics are at the forefront of condensed matter physics. Here, the electronic structures and thermal spin-dependent transport properties of armchair graphene nanoribbons (N-AGNRs), where N is the ribbon width (N = 5-23), are systematically studied. The results show that the indirect band gaps exhibit not only oscillatory behavior but also periodic characteristics with E 3p > E3p+1 > E3p+2 (E 3p , E3p+1 and E3p+2 are the band gaps energy) for a certain integer p, with increasing AGNR width. The magnetic ground states are ferromagnetic (FM) with a Curie temperatures (T C ) above room temperature. Furthermore, the spin-up and spin-down currents with opposite directions, generated by a temperature gradient, are almost symmetrical, indicating the appearance of the perfect spin-dependent Seebeck effect (SDSE). Moreover, thermally driven spin currents through the nanodevices induced the spin Seebeck diode (SSD) effect. Our calculation results indicated that AGNRs can be applied in thermal spin nanodevices. PMID- 29343846 TI - Author Correction: CODA: Integrating multi-level context-oriented directed associations for analysis of drug effects. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29343847 TI - Neural substrates of purely endogenous, self-regulatory control of attention. AB - Stimulus-driven orienting of attention toward a novel, salient stimulus is a highly adaptive behavior. In an opposing vein, it is also crucial to endogenously redirect attention to other stimuli of behavioral significance if the attended stimulus was evaluated to be unimportant. This stimulus-driven orienting and subsequent reorienting of attention are known to be mediated by similar neural substrates. However, this might be because reorienting was triggered by a sensory transition exogenously capturing attention, such as an abrupt onset of a new stimulus. Here, we used fMRI to measure the human brain's activity when attention captured by a salient distractor is endogenously reoriented toward the concurrent main task, without any exogenous shifting of attention. As results, the transient activity of the anterior insula (AI) signaled such endogenous reorienting, predicting behavioral performance. This finding points to the central role of the AI in purely endogenous, self-regulatory control of attention. PMID- 29343848 TI - A novel protein encoded by the circular form of the SHPRH gene suppresses glioma tumorigenesis. AB - Circular RNAs (circRNAs) are recognized as functional non-coding transcripts in eukaryotic cells. Recent evidence has indicated that even though circRNAs are generally expressed at low levels, they may be involved in many physiological or pathological processes, such as gene regulation, tissue development and carcinogenesis. Although the 'microRNA sponge' function is well characterized, most circRNAs do not contain perfect trapping sites for microRNAs, which suggests the possibility that circRNAs have functions that have not yet been defined. In this study, we show that a circRNA containing an open reading frame (ORF) driven by the internal ribosome entry site (IRES) can translate a functional protein. The circular form of the SNF2 histone linker PHD RING helicase (SHPRH) gene encodes a novel protein that we termed SHPRH-146aa. Circular SHPRH (circ-SHPRH) uses overlapping genetic codes to generate a 'UGA' stop codon, which results in the translation of the 17 kDa SHPRH-146aa. Both circ-SHPRH and SHPRH-146aa are abundantly expressed in normal human brains and are down-regulated in glioblastoma. The overexpression of SHPRH-146aa in U251 and U373 glioblastoma cells reduces their malignant behavior and tumorigenicity in vitro and in vivo. Mechanistically, SHPRH-146aa protects full-length SHPRH from degradation by the ubiquitin proteasome. Stabilized SHPRH sequentially ubiquitinates proliferating cell nuclear antigen (PCNA) as an E3 ligase, leading to inhibited cell proliferation and tumorigenicity. Our findings provide a novel perspective regarding circRNA function in physiological and pathological processes. Specifically, SHPRH-146aa generated from overlapping genetic codes of circ-SHPRH is a tumor suppressor in human glioblastoma. PMID- 29343849 TI - Mutant p53 gain of function underlies high expression levels of colorectal cancer stem cells markers. AB - Emerging notion in carcinogenesis ascribes tumor initiation and aggressiveness to cancer stem cells (CSCs). Specifically, colorectal cancer (CRC) development was shown to be compatible with CSCs hypothesis. Mutations in p53 are highly frequent in CRC, and are known to facilitate tumor development and aggressiveness. Yet, the link between mutant p53 and colorectal CSCs is not well-established. In the present study, we set to examine whether oncogenic mutant p53 proteins may augment colorectal CSCs phenotype. By genetic manipulation of mutant p53 in several cellular systems, we demonstrated that mutant p53 enhances colorectal tumorigenesis. Moreover, mutant p53-expressing cell lines harbor larger sub populations of cells highly expressing the known colorectal CSCs markers: CD44, Lgr5, and ALDH. This elevated expression is mediated by mutant p53 binding to CD44, Lgr5, and ALDH1A1 promoter sequences. Furthermore, ALDH1 was found to be involved in mutant p53-dependent chemotherapy resistance. Finally, analysis of ALDH1 and CD44 in human CRC biopsies indicated a positive correlation between their expression and the presence of oncogenic p53 missense mutations. These findings suggest novel insights pertaining the mechanism by which mutant p53 enhances CRC development, which involves the expansion of CSCs sub-populations within CRC tumors, and underscore the importance of targeting these sub populations for CRC therapy. PMID- 29343850 TI - MiRNA-646-mediated reciprocal repression between HIF-1alpha and MIIP contributes to tumorigenesis of pancreatic cancer. AB - Migration and invasion inhibitory protein (MIIP) is recently identified as an inhibitor in tumor development. However, the regulatory mechanism and biological contributions of MIIP in pancreatic cancer (PC) have been not elucidated. In this study, we demonstrated a negative feedback of MIIP and hypoxia-induced factor 1alpha (HIF-1alpha), which was mediated by a hypoxia-induced microRNA. Compared with paracarcinoma tissues, MIIP was downregulated in PC tissues. Overexpression of MIIP significantly impeded the proliferation and invasion of PC cells both in vitro and in mouse xenograft models. We further verified MIIP was downregulated under hypoxia in a HIF-1alpha-mediated manner. Interestingly, although MIIP promoter containing two putative hypoxia response elements (HREs), the chromatin immunoprecipitation (ChIP) and luciferase reporter assays did not support an active interaction between HIF-1alpha and MIIP promoter. Meanwhile, microRNA array revealed a hypoxia-induced microRNA, miR-646, impaired stability of MIIP mRNA and consequently inhibited its expression by targeting the coding sequence (CDS). Coincidently, knockdown of miR-646 significantly repressed proliferation and invasion ability of PC cells both in vitro and in vivo by upregulating MIIP expression. Besides, ChIP and luciferase reporter assays further validated that HIF-1alpha activated transcription of miR-646 in hypoxia condition. Therefore, these results suggested HIF-1alpha indirectly regulated MIIP expression in post transcriptional level through upregulating miR-646 transcription. Conversely, our results further revealed that MIIP suppressed deacetylase ability of histone deacetylase 6 (HDAC6) to promote the acetylation and degradation of HIF-1alpha, by which impairing HIF-1alpha accumulation. What is more, a specific relationship between downregulated MIIP and upregulated miR-646 expression was validated in PC samples. Moreover, the dysregulated miR-646 and MIIP expression was correlated with advanced tumor stage, lymphatic invasion, metastasis and shorter overall survival in PC patients. Together, our results highlight that the reciprocal loop of HIF-1alpha/miR-646/MIIP might be implemented as an applicable target for pancreatic cancer therapy. PMID- 29343851 TI - NDRG2 facilitates colorectal cancer differentiation through the regulation of Skp2-p21/p27 axis. AB - Poorly differentiated colorectal cancers (CRCs) are more aggressive and lack targeted therapies. We and others previously reported the predominant role of tumor-suppressor NDRG2 in promoting CRC differentiation, but the underlying mechanism is largely unknown. Herein, we demonstrate that NDRG2 induction of CRC cell differentiation is dependent on the repression of E3 ligase Skp2 activity. In patients and Ndrg2 knockout mice, NDRG2 and Skp2 are negatively correlated and associated with cell differentiation stage. Further, NDRG2 suppression of Skp2 contributes to the inductions and stabilizations of p21 and p27, which are Skp2 target proteins for degradation. The reduction of either p21 or p27 levels by shRNA can decrease NDRG2-induced AKP activity and resume cell growth inhibition, thus both p21 and p27 are required for NDRG2 effect on the promotion of cell differentiation in CRCs. The mechanistic study shows that NDRG2 suppresses beta catenin nuclear translocation and decreases the occupancy of beta-catenin/TCF complex on Skp2 promoter, potentially through dephosphorylating GSK-3beta. By subjecting a series of NDRG2 deletion mutants to Skp2 expression, the loss of NH2 terminal domain can completely abolish NDRG2-dependent differentiation induction. Supporting the biological significance of the reciprocal relationship between NDRG2 and Skp2, an NDRG2low/Skp2high gene expression signature correlates with poor CRC patient outcome and could be considered as a diagnostic marker of CRCs. PMID- 29343852 TI - A new class of magnetically actuated pumps and valves for microfluidic applications. AB - We propose a new class of magnetically actuated pumps and valves that could be incorporated into microfluidic chips with no further external connections. The idea is to repurpose ferromagnetic low Reynolds number swimmers as devices capable of generating fluid flow, by restricting the swimmers' translational degrees of freedom. We experimentally investigate the flow structure generated by a pinned swimmer in different scenarios, such as unrestricted flow around it as well as flow generated in straight, cross-shaped, Y-shaped and circular channels. This demonstrates the feasibility of incorporating the device into a channel and its capability of acting as a pump, valve and flow splitter. Different regimes could be selected by tuning the frequency and amplitude of the external magnetic field driving the swimmer, or by changing the channel orientation with respect to the field. This versatility endows the device with varied functionality which, together with the robust remote control and reproducibility, makes it a promising candidate for several applications. PMID- 29343854 TI - Towards healthier supermarkets: a national study of in-store food availability, prominence and promotions in New Zealand. AB - BACKGROUND/OBJECTIVES: The retail environment is a key setting for potential public health interventions. This study assessed the healthiness of New Zealand supermarket food environments. SUBJECT/METHODS: A sample of 204 (about 50% of national total) supermarkets across three chains was selected in 2016, half in the most deprived socioeconomic areas. Healthiness indicators related to food availability (ratio of cumulative linear shelf length for healthy versus unhealthy foods), prominence (proportion of 'junk food free' check-outs and end of-aisle endcaps), and promotion (proportion of 'junk food free' promotions in flyers and in-store) were measured. RESULTS: About 26.5% of supermarkets had at least 20% of check-outs junk-food-free and 17.2% had at least 60% of endcaps junk food free. On average 2/3 of food promotions in-store and 3/4 of food promotions in flyers were junk food free. For every 1 m of shelf length for unhealthy foods, there was 42 cm of shelf length for healthy foods on average, with large variations between and within stores. In high and low prominence store areas there was on average 1 m of unhealthy foods for every 2 cm of healthy foods and 1 m of unhealthy foods for every 4 m of healthy foods, respectively. The shelf length ratio was significantly lower in the most compared to the least/medium deprived socioeconomic areas (p = 0.003). CONCLUSIONS: The large variations in healthiness indicators within and across chains present a great opportunity for retailers to improve the healthiness of supermarkets towards best practice. PMID- 29343853 TI - Differential tissue specific, temporal and spatial expression patterns of the Aggrecan gene is modulated by independent enhancer elements. AB - The transcriptional mechanism through which chondrocytes control the spatial and temporal composition of the cartilage tissue has remained largely elusive. The central aim of this study was to identify whether transcriptional enhancers played a role in the organisation of the chondrocytes in cartilaginous tissue. We focused on the Aggrecan gene (Acan) as it is essential for the normal structure and function of cartilage and it is expressed developmentally in different stages of chondrocyte maturation. Using transgenic reporter studies in mice we identified four elements, two of which showed individual chondrocyte developmental stage specificity. In particular, one enhancer (-80) distinguishes itself from the others by being predominantly active in adult cartilage. Furthermore, the -62 element uniquely drove reporter activity in early chondrocytes. The remaining chondrocyte specific enhancers, +28 and -30, showed no preference to chondrocyte type. The transcription factor SOX9 interacted with all the enhancers in vitro and mutation of SOX9 binding sites in one of the enhancers (-30) resulted in a loss of its chondrocyte specificity and ectopic enhancer reporter activity. Thus, the Acan enhancers orchestrate the precise spatiotemporal expression of this gene in cartilage types at different stages of development and adulthood. PMID- 29343855 TI - The ferroptosis inducer erastin irreversibly inhibits system xc- and synergizes with cisplatin to increase cisplatin's cytotoxicity in cancer cells. AB - System xc- was recently described as the most upstream node in a novel form of regulated necrotic cell death, called ferroptosis. In this context, the small molecule erastin was reported to target and inhibit system xc-, leading to cysteine starvation, glutathione depletion and consequently ferroptotic cell death. Although the inhibitory effect of erastin towards system xc- is well documented, nothing is known about its mechanism of action. Therefore, we sought to interrogate in more detail the underlying mechanism of erastin's pro ferroptotic effects. When comparing with some well-known inhibitors of system xc , erastin was the most efficient inhibitor acting at low micromolar concentrations. Notably, only a very short exposure of cells with low erastin concentrations was sufficient to cause a strong and persistent inhibition of system xc-, causing glutathione depletion. These inhibitory effects towards system xc- did not involve cysteine modifications of the transporter. More importantly, short exposure of tumor cells with erastin strongly potentiated the cytotoxic effects of cisplatin to efficiently eradicate tumor cells. Hence, our data suggests that only a very short pre-treatment of erastin suffices to synergize with cisplatin to efficiently induce cancer cell death, findings that might guide us in the design of novel cancer treatment paradigms. PMID- 29343856 TI - Deep-Ultraviolet AlGaN/AlN Core-Shell Multiple Quantum Wells on AlN Nanorods via Lithography-Free Method. AB - We report deep ultraviolet (UVC) emitting core-shell-type AlGaN/AlN multiple quantum wells (MQWs) on the AlN nanorods which are prepared by catalyst/lithography free process. The MQWs are grown on AlN nanorods on a sapphire substrate by polarity-selective epitaxy and etching (PSEE) using high temperature metal organic chemical vapor deposition. The AlN nanorods prepared through PSEE have a low dislocation density because edge dislocations are bent toward neighboring N-polar AlN domains. The core-shell-type MQWs grown on AlN nanorods have three crystallographic orientations, and the final shape of the grown structure is explained by a ball-and-stick model. The photoluminescence (PL) intensity of MQWs grown on AlN nanorods is approximately 40 times higher than that of MQWs simultaneously grown on a planar structure. This result can be explained by increased internal quantum efficiency, large active volume, and increase in light extraction efficiency based on the examination in this study. Among those effects, the increase of active volume on AlN nanorods is considered to be the main reason for the enhancement of the PL intensity. PMID- 29343857 TI - Stimulation of Epicardial Sympathetic Nerves at Different Sites Induces Cardiac Electrical Instability to Various Degrees. AB - The cardiac sympathetic nerves distribute across cardiac tissues with uneven density. Yet, to what extent this anatomical heterogeneity affects electrical activity of the left ventricle is largely unknown. Dogs were randomized into non stimulation control (NC), posterior basal-stimulation (PB), anterior superior stimulation (AS), apical part-stimulation (AP) group. The epicardial sympathetic nerves at different sites along their distribution were with electrical stimulation (ES) for 4 hours except in the NC group. The myocardial effective refractory period (ERP), ventricular fibrillation threshold (VFT) and density of sympathetic nerves were recorded. Compared with ES at other places, the stimulation at PB site significantly shortened ERP (left ventricular anterior and posterior walls; PB group, 118 +/- 4 ms, 106 +/- 2 ms; Versus NC group, 155 +/- 3.5 ms, 160 +/- 3 ms; p < 0.01) and VFT (PB group, 11.5 +/- 1.5 V; Versus NC group, 20.5 +/- 0.9 V; p < 0.01), and induced remarkable regeneration of the cardiac sympathetic nerves, hence influencing electrical activity of the left ventricle to the most extent. Our study demonstrates that the degree of induced ventricular electrical instability is correlated tightly with the density of sympathetic nerves around ES site, and PB site is a potential target for modulating ventricular electrical activity to the maximal extent. PMID- 29343859 TI - Rate after-effects fail to transfer cross-modally: Evidence for distributed sensory timing mechanisms. AB - Accurate time perception is critical for a number of human behaviours, such as understanding speech and the appreciation of music. However, it remains unresolved whether sensory time perception is mediated by a central timing component regulating all senses, or by a set of distributed mechanisms, each dedicated to a single sensory modality and operating in a largely independent manner. To address this issue, we conducted a range of unimodal and cross-modal rate adaptation experiments, in order to establish the degree of specificity of classical after-effects of sensory adaptation. Adapting to a fast rate of sensory stimulation typically makes a moderate rate appear slower (repulsive after effect), and vice versa. A central timing hypothesis predicts general transfer of adaptation effects across modalities, whilst distributed mechanisms predict a high degree of sensory selectivity. Rate perception was quantified by a method of temporal reproduction across all combinations of visual, auditory and tactile senses. Robust repulsive after-effects were observed in all unimodal rate conditions, but were not observed for any cross-modal pairings. Our results show that sensory timing abilities are adaptable but, crucially, that this change is modality-specific - an outcome that is consistent with a distributed sensory timing hypothesis. PMID- 29343858 TI - Developmental pathways inferred from modularity, morphological integration and fluctuating asymmetry patterns in the human face. AB - Facial asymmetries are usually measured and interpreted as proxies to developmental noise. However, analyses focused on its developmental and genetic architecture are scarce. To advance on this topic, studies based on a comprehensive and simultaneous analysis of modularity, morphological integration and facial asymmetries including both phenotypic and genomic information are needed. Here we explore several modularity hypotheses on a sample of Latin American mestizos, in order to test if modularity and integration patterns differ across several genomic ancestry backgrounds. To do so, 4104 individuals were analyzed using 3D photogrammetry reconstructions and a set of 34 facial landmarks placed on each individual. We found a pattern of modularity and integration that is conserved across sub-samples differing in their genomic ancestry background. Specifically, a signal of modularity based on functional demands and organization of the face is regularly observed across the whole sample. Our results shed more light on previous evidence obtained from Genome Wide Association Studies performed on the same samples, indicating the action of different genomic regions contributing to the expression of the nose and mouth facial phenotypes. Our results also indicate that large samples including phenotypic and genomic metadata enable a better understanding of the developmental and genetic architecture of craniofacial phenotypes. PMID- 29343860 TI - Predicted impact of thermal power generation emission control measures in the Beijing-Tianjin-Hebei region on air pollution over Beijing, China. AB - Widespread economic growth in China has led to increasing episodes of severe air pollution, especially in major urban areas. Thermal power plants represent a particularly important class of emissions. Here we present an evaluation of the predicted effectiveness of a series of recently proposed thermal power plant emission controls in the Beijing-Tianjin-Hebei (BTH) region on air quality over Beijing using the Community Multiscale Air Quality(CMAQ) atmospheric chemical transport model to predict CO, SO2, NO2, PM2.5, and PM10 levels. A baseline simulation of the hypothetical removal of all thermal power plants in the BTH region is predicted to lead to 38%, 23%, 23%, 24%, and 24% reductions in current annual mean levels of CO, SO2, NO2, PM2.5, and PM10 in Beijing, respectively. Similar percentage reductions are predicted in the major cities in the BTH region. Simulations of the air quality impact of six proposed thermal power plant emission reduction strategies over the BTH region provide an estimate of the potential improvement in air quality in the Beijing metropolitan area, as a function of the time of year. PMID- 29343861 TI - Sensing Native Protein Solution Structures Using a Solid-state Nanopore: Unraveling the States of VEGF. AB - Monitoring individual proteins in solution while simultaneously obtaining tertiary and quaternary structural information is challenging. In this study, translocation of the vascular endothelial growth factor (VEGF) protein through a solid-state nanopore (ssNP) produces distinct ion-current blockade amplitude levels and durations likely corresponding to monomer, dimer, and higher oligomeric states. Upon changing from a non-reducing to a reducing condition, ion current blockage events from the monomeric state dominate, consistent with the expected reduction of the two inter-chain VEGF disulfide bonds. Cleavage by plasmin and application of either a positive or a negative NP bias results in nanopore signals corresponding either to the VEGF receptor recognition domain or to the heparin binding domain, accordingly. Interestingly, multi-level analysis of VEGF events reveals how individual domains affect their translocation pattern. Our study shows that careful characterization of ssNP results elucidates real time structural information about the protein, thereby complementing classical techniques for structural analysis of proteins in solution with the added advantage of quantitative single-molecule resolution of native proteins. PMID- 29343862 TI - Angiotensin II Overstimulation Leads to an Increased Susceptibility to Dilated Cardiomyopathy and Higher Mortality in Female Mice. AB - Heart failure (HF) is associated with high mortality and affects men and women differently. The underlying mechanisms for these sex-related differences remain largely unexplored. Accordingly, using mice with cardiac-specific overexpression of the angiotensin II (ANGII) type 1 receptor (AT1R), we explored male-female differences in the manifestations of hypertrophy and HF. AT1R mice of both sexes feature electrical and Ca2+ handling alterations, systolic dysfunction, hypertrophy and develop HF. However, females had much higher mortality (21.0%) rate than males (5.5%). In females, AT1R stimulation leads to more pronounced eccentric hypertrophy (larger increase in LV mass/body weight ratio [+31%], in cell length [+27%], in LV internal end-diastolic [LVIDd, +34%] and systolic [LVIDs, +67%] diameter) and dilation (larger decrease in LV posterior wall thickness, +17%) than males. In addition, in female AT1R mice the cytosolic Ca2+ extrusion mechanisms were more severely compromised and were associated with a specific increased in Ca2+ sparks (by 187%) and evidence of SR Ca2+ leak. Altogether, these results suggest that female AT1R mice have more severe eccentric hypertrophy, dysfunction and compromised Ca2+ dynamics. These findings indicate that females are more susceptible to the adverse effects of AT1R stimulation than males favouring the development of HF and increased mortality. PMID- 29343863 TI - Genetic analyses favour an ancient and natural origin of elephants on Borneo. AB - The origin of the elephant on the island of Borneo remains elusive. Research has suggested two alternative hypotheses: the Bornean elephant stems either from a recent introduction in the 17th century or from an ancient colonization several hundreds of thousands years ago. Lack of elephant fossils has been interpreted as evidence for a very recent introduction, whereas mtDNA divergence from other Asian elephants has been argued to favor an ancient colonization. We investigated the demographic history of Bornean elephants using full-likelihood and approximate Bayesian computation analyses. Our results are at odds with both the recent and ancient colonization hypotheses, and favour a third intermediate scenario. We find that genetic data favour a scenario in which Bornean elephants experienced a bottleneck during the last glacial period, possibly as a consequence of the colonization of Borneo, and from which it has slowly recovered since. Altogether the data support a natural colonization of Bornean elephants at a time when large terrestrial mammals could colonise from the Sunda shelf when sea levels were much lower. Our results are important not only in understanding the unique history of the colonization of Borneo by elephants, but also for their long-term conservation. PMID- 29343864 TI - Electrochemical and Friction Characteristics of Metallic Glass Composites at the Microstructural Length-scales. AB - Metallic glass composites represent a unique alloy design strategy comprising of in situ crystalline dendrites in an amorphous matrix to achieve damage tolerance unseen in conventional structural materials. They are promising for a range of advanced applications including spacecraft gears, high-performance sporting goods and bio-implants, all of which demand high surface degradation resistance. Here, we evaluated the phase-specific electrochemical and friction characteristics of a Zr-based metallic glass composite, Zr56.2Ti13.8Nb5.0Cu6.9Ni5.6Be12.5, which comprised roughly of 40% by volume crystalline dendrites in an amorphous matrix. The amorphous matrix showed higher hardness and friction coefficient compared to the crystalline dendrites. But sliding reciprocating tests for the composite revealed inter-phase delamination rather than preferred wearing of one phase. Pitting during potentiodynamic polarization in NaCl solution was prevalent at the inter-phase boundary, confirming that galvanic coupling was the predominant corrosion mechanism. Scanning vibration electrode technique demonstrated that the amorphous matrix corroded much faster than the crystalline dendrites due to its unfavorable chemistry. Relative work function values measured using scanning kelvin probe showed the amorphous matrix to be more electropositive, which explain its preferred corrosion over the crystalline dendrites as well as its characteristic friction behavior. This study paves the way for careful partitioning of elements between the two phases in a metallic glass composite to tune its surface degradation behavior for a range of advanced applications. PMID- 29343865 TI - Targeting murine leukemic stem cells by antibody functionalized mesoporous silica nanoparticles. AB - Acute leukemia is initiated and maintained by leukemia stem cells (LSCs) and therefore there is great interest to develop innovative therapeutic approaches which target LSCs. Here we show that mesoporous silica nanoparticles (MSNs) functionalized with succinic anhydride, tagged with an anti-B220 antibody and loaded with the anthracycline daunorubicin are efficiently incorporated into murine B220-positive AML LSCs and preferentially kill these cells in comparison to B220-negative AML LSCs in vitro. Furthermore, short - term treatment of the AML LSCs with these MSNs before transplant significantly delayed leukemia development in recipient mice. These data demonstrate that targeting of AML LSCs can be improved by using functionalized and antigen directed MSNs as carriers for anti-leukemic drugs. PMID- 29343866 TI - Identification of JAZ-interacting MYC transcription factors involved in latex drainage in Hevea brasiliensis. AB - Hevea brasiliensis Mull. Arg. is one of the most frequently wounded plants worldwide. Expelling latex upon mechanical injury is a wound response of rubber trees. However, JA-mediated wound responses in rubber trees are not well documented. In this work, three JAZ-interacting MYC transcription factors of H. brasiliensis (termed HbMYC2/3/4) were identified by yeast two-hybrid screening. HbMYC2/3/4 each showed specific interaction profiles with HbJAZs. HbMYC2/3/4 each localized in the nucleus and exhibited strong transcriptional activity. To identify the target genes potentially regulated by HbMYC2/3/4, cis-elements interacting with HbMYC2/3/4 were first screened by yeast one-hybrid assays; the results indicated that HbMYC2/3/4 each could bind G-box elements. Additional analysis confirmed that HbMYC2/3/4 bound the HbPIP2;1 promoter, which contains five G-box cis-elements, and regulated the expression of reporter genes in yeast cells and in planta. HbMYC2/3/4 were induced by exogenous JA treatment but suppressed by ethylene (ET) treatment; in contrast, HbPIP2;1 was positively regulated by ET but negatively regulated by JA treatment. Given that HbPIP2;1 is involved in latex drainage, it could be proposed that HbMYC2/3/4 are involved in the regulation of HbPIP2;1 expression as well as latex drainage, both of which are coordinated by the JA and ET signalling pathways. PMID- 29343867 TI - Improving survival of acute-on-chronic liver failure patients complicated with invasive pulmonary aspergillosis. AB - The mortality of acute-on-chronic liver failure (ACLF) patients complicated with invasive pulmonary aspergillosis (IPA) was extremely high. We aimed to explore prognostic value of the Chronic Liver Failure-Sequential Organ Failure Assessment (CLIF-SOFA) lung score and to establish an optimal voriconazole regimen for ACLF patients complicated with IPA. We retrospectively screened hospitalized ACLF patients in our hospital from July 2011 to April 2016, from which 20 probable IPA cases were diagnosed. Along with onsets of IPA, deteriorated diseases severity, especially lung conditions were found in those 20 ACLF patients. It was found that IPA patients with CLIF-SOFA lung score <2 had better 28-day survival than those with lung score >1 (11/13 vs 0/7, p < 0.001). Based on plasma voriconazole concentration measurement, an optimal voriconazole regimen (loading doses: 0.2 g twice daily; maintenance doses, 0.1 g once daily) was established, which resulted in rational trough plasma drug concentrations (1-5 MUg/mL), good clinical outcomes (90-day survival rate of 6/8) and no observed adverse events. In conclusion, CLIF-SOFA lung score >1 was able to identify ACLF patients complicated with IPA encountering much higher 28-day mortality. An optimal voriconazole regimen was safe and effective in our ACLF patients complicated with IPA. PMID- 29343868 TI - Galectin-13, a different prototype galectin, does not bind beta-galacto-sides and forms dimers via intermolecular disulfide bridges between Cys-136 and Cys-138. AB - During pregnancy, placental protein-13 (galectin-13) is highly expressed in the placenta and fetal tissue, and less so in maternal serum that is related to pre eclampsia. To understand galectin-13 function at the molecular level, we solved its crystal structure and discovered that its dimer is stabilized by two disulfide bridges between Cys136 and Cys138 and six hydrogen bonds involving Val135, Val137, and Gln139. Native PAGE and gel filtration demonstrate that this is not a crystallization artifact because dimers also form in solution. Our biochemical studies indicate that galectin-13 ligand binding specificity is different from that of other galectins in that it does not bind beta galactosides. This is partly explained by the presence of Arg53 rather than His53 at the bottom of the carbohydrate binding site in a position that is crucial for interactions with beta-galactosides. Mutating Arg53 to histidine does not re establish normal beta-galactoside binding, but rather traps cryoprotectant glycerol molecules within the ligand binding site in crystals of the R53H mutant. Moreover, unlike most other galectins, we also found that GFP-tagged galectin-13 is localized within the nucleus of HeLa and 293 T cells. Overall, galectin-13 appears to be a new type of prototype galectin with distinct properties. PMID- 29343869 TI - Spatiotemporal allele organization by allele-specific CRISPR live-cell imaging (SNP-CLING). AB - Imaging and chromatin capture techniques have provided important insights into our understanding of nuclear organization. A limitation of these techniques is the inability to resolve allele-specific spatiotemporal properties of genomic loci in living cells. Here, we describe an allele-specific CRISPR live-cell DNA imaging technique (SNP-CLING) to provide the first comprehensive insights into allelic positioning across space and time in mouse embryonic stem cells and fibroblasts. With 3D imaging, we studied alleles on different chromosomes in relation to one another and relative to nuclear substructures such as the nucleolus. We find that alleles maintain similar positions relative to each other and the nucleolus; however, loci occupy unique positions. To monitor spatiotemporal dynamics by SNP-CLING, we performed 4D imaging and determined that alleles are either stably positioned or fluctuating during cell state transitions, such as apoptosis. SNP-CLING is a universally applicable technique that enables the dissection of allele-specific spatiotemporal genome organization in live cells. PMID- 29343870 TI - Italian law n. 24/2017 on physicians' criminal liability: a reform that does not solve the problems of the psychiatric practice AB - For years psychiatrists have been facing the risk of being prosecuted for professional liability. One of the reasons for this situation depends on the fact that professionals cannot rely on clear rules of conduct. Indeed, in psychiatry, it may happen that a judge considers negligent a conduct not punishable by another court, as in cases of hospital discharges. In order to solve this situation, on March 8, 2017 Italian legislators issued the law no. 24. First of all, it establishes that health care providers must follow the guidelines that will be published on the website of the High Institute of Health, with the exception of specific situations on a given case. In the absence of such guidelines, the good clinical-care practice should be applied (Art. 5). In addition, if health care providers have met the guidelines as appropriate to the specific case or, in their absence, to the good clinical-care practice, they cannot be sentenced for homicide or accidental injury due to incapacity (Art. 6). The authors analyze these provisions with the aim of verifying if they are adequate to achieve the purposes that the legislator had set: 1) protecting patients' health; 2) offering psychiatrists clear rules of conduct in order to reduce the risk of being subjected to criminal proceedings. The first objective is endangered by the fact that the law does not indicate the level of the evidences trustworthiness necessary to make them be considered as binding guidelines. The second objective appears unreachable. In fact, the law under consideration states that only incapacity is not punishable, whereas homicide and lesions caused by negligence or imprudence, even if slight, are considered a crime. In the psychiatric field, more than in other branches of medicine, charges normally concern negligence or imprudence. Therefore, this reform does not limit at all psychiatrists' criminal liability. PMID- 29343871 TI - [Ulysses contract in psychiatry]. AB - Over the last twenty years we have witnessed a growing focus on the rights of the ill people. The debate on informed consent and a new redefinition of the therapeutic relationship is constantly evolving. With this article, we propose a critical literature review of the so-called "Ulysses contract" or "psychiatric advance directives". It refers to the will that a subject expresses in writing, or orally, about the treatments he or she wishes or does not wish to be subject to if the time comes when it may be impossible to express his/her consent. This can especially occur in those with psychiatric disorders with serious clinical involvement and remitting-relapse (typically bipolar disorder, but also chronic delusional disorders and schizophrenia). In this context, the question is whether during intercritical periods the patient may or may not leave instructions to their care-givers. This aspect opens up to a series of interdisciplinary problems. In this article, we want to show the complexity of this debate from a clinical, ethical, legal and psychodynamic point of view, emphasizing the strengths and the major criticisms of the psychiatric advance directives for each area. PMID- 29343872 TI - [Duties and liabilities for psychiatrists]. AB - This paper evaluates forensic duties and liabilities for psychiatrists, based on the current literature and based on our experience over several years of forensic medicine practice, involving both criminal and civil cases. We evaluated different scenarios, including cases of patients dangerous to themselves or others. We highlighted the importance to keep adequate and detailed clinical records, both in the inpatient and outpatient setting, given the absence of other objective items (e.g., laboratory records or other instrumental assessments) that may be of help for the judge and his/her counselors. PMID- 29343873 TI - A bibliometric analysis of scientific production on atypical antipsychotic drugs from Italy AB - Objective: A bibliometric study of peer-reviewed scientific publications on atypical antipsychotic drugs (AADs) from Italy is herein presented. Methods: We selected the documents from Scopus database. We applied several bibliometric indicators of production and dispersion, including Price's Law about the increase of scientific literature, and Bradford's Law. We also calculated the participation indexacross different countries. The bibliometric data have also been correlated with some social and health data sourcing in Italy, such as total per capita expenditure on health and gross domestic expenditure. Results: A total of 2949 original documents were published within the period 1972-2015. Our results state fulfilment of Price's Law, with scientific production showing exponential growth (r=0.901, as against an r=0.838 after linear adjustment). The drugs most widely studied were clozapine (257 documents), risperidone (179), and olanzapine (172). Stratificationinto Bradford zones yielded a nucleus represented by the Journal of Clinical Psychopharmacology and Rivista di Psichiatria (58 articles, each one). A total of 1091 different journals were evaluated. Conclusions: The publications on AADs in Italy have undergone exponential growth over the studied period, which is in line with the progressively burgeoning on novel AAD releases. No evidence of saturation point was observed. PMID- 29343874 TI - [Mental Health Recovery Star: features and validation study of the Italian version]. AB - AIM: Mental Health Recovery Star (MHRS) is an instrument that helps to assess recovery processes of mental health patients through a collaborative approach. The aim of the study is to describe the features of the instrument and to report the results of the Italian validation study. METHODS: The study involved 117 users which were evaluated in two phases. Besides MRHS, HoNOS, WHOQoL-brief, GAF were used. Acceptability for users and key-workers of the instruments and its main psychometric properties, as test-retes (ICC) and concurrent validity (Pearson's correlation coefficient), were evaluated. RESULTS: MHRS showed to have temporal stability in all its areas. Significant correlations were found between the MHRS and the most closely related areas of the scales used. Inter-rater reliability were studied in an unsatisfactory way. MHRS was appreciated and easy to use. Collaborative evaluations were completed mostly in less than 45 minutes. CONCLUSIONS: MHRS is an acceptable tool for users and staff-members, distinguishing itself from the use of useful visual aids; helps to identify the patient's recovery path and supports a collaborative approach between user and operator. The results of the psychometric properties of the instrument appeared promising but not exhaustive. Although further efforts should be addressed to the implementation of such aspects of the instrument and reflections should be raised with respect to the traditional methods to detect the complex meaning of recovery (subjective-objective aspects), the valuable collaborative contribution of MHRS can not be denied in favoring the user's responsibility and supporting the professional worker in his role of case manager. PMID- 29343875 TI - [Trazodone prolonged release in bipolar disorder II-obsessive-compulsive disorder comorbidity: a case report]. AB - Approximately 21% of patients with bipolar disorder (BD) also have an additional diagnosis of obsessive-compulsive disorder (OCD). This condition is associated with a more severe prognosis and complicates the treatment of BD. In our case report we provide documentary evidence of our experience with trazodone prolonged release in the treatment of depressive phase in a patient with BD II-OCD comorbidity. Rationality in the choise of treatment was based on the need to manage depressive and obsessive symptoms without facilitating hypomania switches. PMID- 29343878 TI - CXCL14-like Immunoreactivity Exists in Somatostatin-containing Endocrine Cells, and in the Lamina Propria and Submucosal Somatostatinergic Nervous System of Mouse Alimentary Tract. AB - In the present study, we investigated the distribution of CXCL14 immunoreactive endocrine cells and neurons in mouse alimentary tract by immunohistochemistry. CXCL14 immunoreactive endocrine cells were found as closed-type cells in the stomach and open-type cells in the small intestine. The immunostaining of these endocrine cells corresponded with that of the somatostatin-containing endocrine cells. Only a few CXCL14 immunoreactive endocrine cells were seen in the large intestine. CXCL14 immunoreactive fibers were observed in the muscular layer from the stomach to the rectum with most abundance in the rectum. Many CXCL14 immunoreactive fibers were observed in the lamina propria and submucosal layer from the duodenum to the rectum with most abundance in the rectum; these fibers corresponded to the somatostatin-containing nerve fibers. Some CXCL14 immunoreactive neuronal somata that were also immuno-positive for somatostatin, were noted in the submucosal layer of the rectum. However, the remaining parts of the alimentary tract presented with almost negligible immunoreactive somata. The co-localization of CXCL14 and somatostatin suggests that CXCL14 contributes to the function of somatostatin, which include the inhibition of other endocrine and exocrine cells and the enteric nervous systems. PMID- 29343879 TI - CCN3 Expression Marks a Sulfomucin-nonproducing Unique Subset of Colonic Goblet Cells in Mice. AB - Intestinal goblet cells are characterized by their unique morphology and specialized function to secrete mucins. Although it is known that they are a heterogeneous population of cells, there have been few studies that relate the expression of a particular gene with functionally distinct subpopulations of intestinal goblet cells. Here we show that CCN3, a gene encoding a member of the CCN family proteins, is induced by inhibition of Notch signaling in colonic epithelial cells and expressed in goblet cells in mice. We demonstrate that CCN3 expression is confined to a subpopulation of goblet cells in the lower crypt of the proximal and middle colon. In addition, CCN3+ cells in the colon correlate well with the cells that are positive for alcian blue (AB) staining but negative for high-iron diamine (HID) staining in histology. We also show that CCN3+ cells, which are absent in the normal distal colon, transiently and ectopically emerge in regenerating crypts during the repair phase of DSS-induced colitis model. Our study thus suggests that CCN3 labels a unique subpopulation of sulfomucin nonproducing colonic goblet cells that function in both normal and diseased colonic epithelia. PMID- 29343880 TI - Novel Application of Loop-mediated Isothermal Amplification for Rapid Detection of Gene Translocation. AB - Identification of fusion genes in cancer is essential for pathological diagnosis and clinical therapy. Although methods for detection of fusion genes, such as fluorescence in situ hybridization (FISH) and real-time polymerase chain reaction (PCR), have been developed in last two decades, these methods are not ideal for detection of these genetic alterations owing to their high cost and time consuming procedures. In this study, we developed novel application for detection of gene translocations using loop-mediated isothermal amplification (LAMP). We verified the amplified DNA products of echinoderm microtubule-associated protein like 4 and anaplastic lymphoma kinase (EML4-ALK), synaptotagmin and synovial sarcoma, X breakpoint (SYT-SSX), and immunoglobulin heavy chain gene and B cell leukemia/lymphoma 2 (IgH/BCL2) by real-time PCR, agarose-gel electrophoresis, and the naked eye after the LAMP procedure. Fusion genes were detected in samples diluted 103 times within 60 min. Because of the advantages of rapid amplification, simple operation, and easy detection without requiring sophisticated equipment or technical skill, LAMP may have potential applications as an on-site analytical approach in hospitals for pathological diagnosis and decision making regarding appropriate therapeutic approachs. PMID- 29343881 TI - Validation of Anti-CSPalpha, SNAP25, Tyrosine Hydroxylase, Ubiquitin, Cleaved Caspase 3, and pSer PKC Motif Antibodies for Utilization in Western Blotting. AB - There are many commercial antibodies with little information provided by their suppliers as to their reliability. Accordingly, commercial antibodies require proper validation before being used in scientific research. In this study, we validated several commercial antibodies, including anti-CSPalpha, SNAP25, tyrosine hydroxylase, ubiquitin, cleaved caspase 3, and pSer PKC motif. Anti CSPalpha, SNAP25, and tyrosine hydroxylase antibodies could detect their endogenous target proteins with some degree of cross-reactivity. Furthermore, clear SNAP25 staining was observed with SNAP25 antibody. Antibodies directed against ubiquitin, cleaved caspase 3, and pSer PKC motif could detect poly ubiquitination, apoptosis, and phosphorylation, respectively. PMID- 29343882 TI - Can productivity and profitability be enhanced in intensively managed cereal systems while reducing the environmental footprint of production? Assessing sustainable intensification options in the breadbasket of India. AB - In the most productive area of the Indo-Gangetic Plains in Northwest India where high yields of rice and wheat are commonplace, a medium-term cropping system trial was conducted in Haryana State. The goal of the study was to identify integrated management options for further improving productivity and profitability while rationalizing resource use and reducing environmental externalities (i.e., "sustainable intensification", SI) by drawing on the principles of diversification, precision management, and conservation agriculture. Four scenarios were evaluated: Scenario 1 - "business-as-usual" [conventional puddled transplanted rice (PTR) followed by (fb) conventional-till wheat]; Scenario 2 - reduced tillage with opportunistic diversification and precision resource management [PTR fb zero-till (ZT) wheat fb ZT mungbean]; Scenario 3 - ZT for all crops with opportunistic diversification and precision resource management [ZT direct-seeded rice (ZT-DSR) fb ZT wheat fb ZT mungbean]; and Scenario 4 - ZT for all crops with strategic diversification and precision resource management [ZT maize fb ZT wheat fb ZT mungbean]. Results of this five year study strongly suggest that, compared with business-as-usual practices, SI strategies that incorporate multi-objective yield, economic, and environmental criteria can be more productive when used in these production environments. For Scenarios 2, 3, and 4, system-level increases in productivity (10-17%) and profitability (24-50%) were observed while using less irrigation water (15-71% reduction) and energy (17-47% reduction), leading to 15-30% lower global warming potential (GWP), with the ranges reflecting the implications of specific innovations. Scenario 3, where early wheat sowing was combined with ZT along with no puddling during the rice phase, resulted in a 13% gain in wheat yield compared with Scenario 2. A similar gain in wheat yield was observed in Scenario 4 vis-a vis Scenario 2. Compared to Scenario 1, wheat yields in Scenarios 3 and 4 were 15 17% higher, whereas, in Scenario 2, yield was either similar in normal years or higher in warmer years. During the rainy (kharif) season, ZT-DSR provided yields similar to or higher than those of PTR in the first three years and lower (11 30%) in Years 4 and 5, a result that provides a note of caution for interpreting technology performance through short-term trials or simply averaging results over several years. The resource use and economic and environmental advantages of DSR were more stable through time, including reductions in irrigation water (22-40%), production cost (11-17%), energy inputs (13-34%), and total GWP (14-32%). The integration of "best practices" in PTR in Scenario 2 resulted in reductions of 24% in irrigation water and 21% in GWP, with a positive impact on yield (0.9 t/ha) and profitability compared to conventional PTR, demonstrating the power of simple management changes to generate improved SI outcomes. When ZT maize was used as a diversification option instead of rice in Scenario 4, reductions in resource use jumped to 82-89% for irrigation water and 49-66% for energy inputs, with 13-40% lower GWP, similar or higher rice equivalent yield, and higher profitability (27-73%) in comparison to the rice-based scenarios. Despite these advantages, maize value chains are not robust in this part of India and public procurement is absent. Results do demonstrate that transformative opportunities exist to break the cycle of stagnating yields and inefficient resource use in the most productive cereal-based cropping systems of South Asia. However, these SI entry points need to be placed in the context of the major drivers of change in the region, including market conditions, risks, and declining labor availability, and matching with the needs and interests of different types of farmers. PMID- 29343883 TI - Magnetoelectric effect in nanogranular FeCo-MgF films at GHz frequencies. AB - The magnetoelectric effect is a key issue for material science and is particularly significant in the high frequency band, where it is indispensable in industrial applications. Here, we present for the first time, a study of the high frequency tunneling magneto-dielectric (TMD) effect in nanogranular FeCo-MgF films, consisting of nanometer-sized magnetic FeCo granules dispersed in an MgF insulator matrix. Dielectric relaxation and the TMD effect are confirmed at frequencies over 10 MHz. The frequency dependence of dielectric relaxation is described by the Debye-Frohlich model, taking relaxation time dispersion into account, which reflects variations in the nature of the microstructure, such as granule size, and the inter-spacing between the granules that affect the dielectric response. The TMD effect reaches a maximum at a frequency that is equivalent to the inverse of the relaxation time. The frequency where the peak TMD effect is observed varies between 12 MHz and 220 MHz, depending on the concentration of magnetic metal in the nanogranular films. The inter-spacing of the films decreases with increasing magnetic metal concentration, in accordance with the relaxation time. These results indicate that dielectric relaxation is controlled by changing the nanostructure, using the deposition conditions. A prospective application of these nanogranular films is in tunable impedance devices for next-generation mobile communication systems, at frequencies over 1 GHz, where capacitance is controlled using the applied magnetic field. PMID- 29343885 TI - The curriculum: What is changing? PMID- 29343884 TI - Neutral Sphingomyelinase Behaviour in Hippocampus Neuroinflammation of MPTP Induced Mouse Model of Parkinson's Disease and in Embryonic Hippocampal Cells. AB - Neutral sphingomyelinase is known to be implicated in growth arrest, differentiation, proliferation, and apoptosis. Although previous studies have reported the involvement of neutral sphingomyelinase in hippocampus physiopathology, its behavior in the hippocampus during Parkinson's disease remains undetected. In this study, we show an upregulation of inducible nitric oxide synthase and a downregulation of neutral sphingomyelinase in the hippocampus of 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine- (MPTP-) induced mouse model of Parkinson's disease. Moreover, the stimulation of neutral sphingomyelinase activity with vitamin 1,25-dihydroxyvitamin D3 reduces specifically saturated fatty acid sphingomyelin by making sphingomyelin a less rigid molecule that might influence neurite plasticity. The possible biological relevance of the increase of neutral sphingomyelinase in Parkinson's disease is discussed. PMID- 29343886 TI - Prof. Narendra J. Pandya. PMID- 29343887 TI - Synovial tuberculosis of the hand: An ancient disease in an unusual localisation. AB - Background: Tuberculosis is the most prevalent infectious disease in the world. It is mainly caused by Mycobacterium tuberculosis. Osteoarticular tuberculosis represents 1%-3%. Tenosynovitis is the most common form of the disease in the hand. Aims: The aim of this study is to present an update of synovial tuberculosis. Materials and Methods: The authors present a literature review, the clinical and surgical management and case reports. Results: The outcomes were satisfactory and were not report complications. Conclusions: Early diagnosis, surgical transection of the transverse carpal ligament, debridement and complete excision of the infected synovium may be required, along with antituberculosis drugs. Knowledge of this disease in the hand can provide a better diagnosis and outcome. PMID- 29343888 TI - Medial femoral condyle vascularised corticoperiosteal graft: A suitable choice for scaphoid non-union. AB - Introduction: Scaphoid fractures are not very common and frequently remain undiagnosed, presenting in non-union and persistent wrist pain. Options for scaphoid fracture treatment have been described over several decades, however, none with an optimal solution to achieve union along with good hand function. We describe here, the use of vascularised corticoperiosteal bone grafts from the medial femoral condyle (MFC) as a solution for the difficult problem of scaphoid fracture non-union. Materials and Methods: This series has 11 patients with non union following a scaphoid fracture treated over 18 months ranging from January 2014 to January 2016 using a vascularised corticoperiosteal graft from the MFC. Bone graft fixation was done using K-wires and anastomosis was done with the radial vessels. Results: There were no cases of flap loss. Time of union was an average 3 months. All patients had a full range of movements. Discussion: MFC is an ideal site for harvesting vascularised corticoperiosteal grafts providing a large surface of tissue supplied by a rich periosteal plexus from the descending genicular artery. No significant donor site morbidities have been reported in any series in the past. The well-defined anatomy helps in a rather simple dissection. Corticoperiosteal grafts have a high osteogenic potential and hence, this vascularised graft seems ideal for small bone non-unions. Conclusion: Thin, pliable and highly vascularised corticocancellous grafts can be obtained from the MFC as an optimal treatment option for scaphoid non-unions. PMID- 29343889 TI - First two bilateral hand transplantations in India (Part 1): From vision to reality. AB - Introduction: Vascularized composite tissue allotransplantation is a relatively new concept, which was unavailable in the Indian subcontinent till a bilateral hand transplant was carried out successfully in January 2015. Materials and Methods: The setting up of the transplant programme involved obtaining legal clearances, creating public awareness, harnessing the institutional facilities, drawing up protocols, assembling the surgical team, managing immunological issues, rehabilitation and preparing the ancillary services. Results: Both, the first and second bilateral hand transplants were resounding successes with both the recipients getting back to their original daily routines. Conclusions: The organisation of the hand transplant programme was a large task, which necessitated intensive planning, and cooperation from various teams within and outside the institution. Exemplary team-work was the key to the phenomenal success of these path breaking endeavors in the subcontinent. PMID- 29343890 TI - First two bilateral hand transplantations in India (Part 2): Technical details. AB - Introduction: This article deals with two patients who underwent bilateral hand transplantation following amputation of both upper limbs at the distal third of the foream. Materials and Methods: The first patient had a history of loss of hands in a train accident , with possiblity of a run over element during the injury. The second patient lost his both hands in a mine blast. The preoperative work up included detailed clinical and psychological evaluation. The donor retrieval was similar in both the cases and the donors were housed in our own instittution. The donor preparation, recipient preparation and the transplant procedure was similar except for the need of primary tendon transfers in the left hand of the first patient. Results: The first patient needed a free flap transfer to cover compromised skin flap on the left hand on the second day. The second hand transplant was uneventful. Both the recipients are now back to their normal daily routines. Conclusions: Hand transplantation is a potentially life altering procedure, but to optimise the results, it is imperative that there is a meticulous planning and diligent execution with utmost importance to the detail coupled with a synchronised team effort. PMID- 29343891 TI - First two bilateral hand transplantations in India (Part 3): Rehabilitation and immediate outcome. AB - Introduction: This report covers the strategies adopted for rehabilitation for the first and second dual hand transplants performed in India. Materials and Methods: The team, under a trained physiatrist, including physiotherapy and occupational therapy personnel, was involved in the management of both these patients. The management protocol was developed considering previous reports as well as our management strategies in the rehabilitation of the replanted hands. The involvement of the team with the patients started in the 1st week itself and continued on a daily basis for the entire year. Results: Outcome analysis was performed at 6 months and 1 year using the disability of shoulder and hand evaluation and hand transplant scoring system. Functional magnetic resonance imaging was done at the end of 1 year to assess the cortical integration of the transplanted hand. Conclusion: Despite more than 110 hands being transplanted worldwide, hand transplant remains an experimental procedure. It is still not considered the "standard of care" for hand amputees. Outcome analyses performed worldwide do indicate that the procedure can provide a substantial improvement in the quality of life for the hand amputee, especially the bilateral amputees. PMID- 29343892 TI - First two bilateral hand transplantations in India (Part 4): Immediate post operative care, immunosuppression protocol and monitoring. AB - Introduction: Being able to counter immune-mediated rejection has for decades been the single largest obstacle for the progress of vascular composite allotransplantation (VCA). The human immune system performs the key role of differentiating the 'self ' from the 'non-self '. This, although is quintessential to eliminate or resist infections, also resists the acceptance of an allograft which it promptly recognises as 'non-self'. Materials and Methods: Pre-operative evaluation of the recipient evaluation included immunological assessment in the form of panel reactive antibodies (PRA), human leucocyte antigen (HLA) typing, donor-specific antibody detection assays (DSA) and complement-dependent cytotoxicity assays (CDC). Induction immunosuppression was by thymoglobulin and the maintenance by the standard triple-drug therapy. Results: Both the recipients were managed by the standard triple drug therapy and have had only minor episodes of rejections thus far which have been managed appropriately. Discussion: Induction immunosuppression was by thymoglobulin and the maintenance by the standard triple-drug therapy. Various groups have tried various other formulations and regimes as well. Conclusion: A comprehensive plan has to be drawn up for immunological screening, selection and the post-operative immunosuppressant usage. The ultimate goal of these immunosuppression modalities is to achieve a state of donor-specific tolerance. PMID- 29343893 TI - Assessment of perfusion of free flaps used in head and neck reconstruction using pulsatility index. AB - Objective: To detect venous or arterial obstruction in the pedicle of a free flap we can monitor resistance in the flap bed which is reflected in Pulsatility Index (PI) Therefore if we detect change in the values of the PI in these flaps then we can detect complications in flap due to vascular insufficiency early. Materials and Methods: Seven patients of Free Fibular Flap Reconstruction and ten patients of Free Radial Forearm Flap reconstruction were evaluated over a period of 18 months. In the pre op we recorded PI of Radial and Peroneal artery using colour doppler study. In the Post Operative Period 2 readings of PI at the anastomotic site were taken on Day 1 and Day 7. Results: Both Free Radial Forearm and Free Fibula flaps which were healthy (n = 15) showed a significant decrease in PI values on first Post Op day as compared to Pre Op. Also there was a significant fall in PI on Post Op Day 7 as compared to post op Day 1 (P < 0.05) in these flaps. The flaps developing complications (n = 2) had significantly higher Day 1 Post op PI readings as compared to healthy flaps (P < 0.05). Conclusion: PI is an objective index which can indicate changes in perfusion of free flaps used in Head and Neck reconstruction based on which we can predict if a flap is susceptible to circulatory compromise. PMID- 29343894 TI - Primary unilateral cleft lip nasal deformity repair using V-Y-Z plasty: An anthropometric study. AB - Background: Secondary nose deformity after unilateral cleft lip repair is a common problem. Loss of tip projection on the cleft side of unilateral cleft lip nasal deformity can be difficult to correct due to lack of adequate support. The purpose of this study is to evaluate the surgical outcome after using V-Y-Z plasty to address unilateral cleft lip nasal deformities. Methods: A cross sectional study of one surgeon's outcome of 58 performed primary complete unilateral cleft lip nasal deformity repairs. All these patients met the study criterion of having anthropometric measurements at the cleft and non-cleft side of the nose performed at least 1 year postoperatively. Results: Since 2012, 32 consecutive patients have undergone primary anatomical repair of the cleft nasal deformity in patients with a complete unilateral cleft. We have not found statistically significant differences between the cleft and non-cleft nostril dome height and columella length measured at least 1 year postoperatively. Conclusions: The findings suggest that the V-Y-Z plasty is a good alternative to create a more symmetric nasal tip in patients with primary unilateral cleft lip nasal deformity. Additional studies are required to evaluate functional and long term outcomes after primary rhinoplasty in patients with unilateral cleft lip. PMID- 29343895 TI - Why borrow from Peter when Paul can afford it? Reverse homodigital artery flap for fingertip reconstruction. AB - Background: Fingertip injuries that are complicated by pulp loss, bone or tendon exposure will need a flap cover. Cross finger flap is commonly used to cover such defects. However, patients are apprehensive about injuring the uninjured finger as a donor site. Reverse homodigital artery flap (RHAF) can provide reliable vascularised cover to such defects. Aims: This study aims to assess the functional and aesthetic outcomes along with the patient satisfaction of RHAFs done for fingertip defects. Materials and Methods: RHAFs done in 18 patients operated between August 2015 and October 2016 were retrospectively analysed on flap survival, sensory recovery, range of movements, hypersensitivity, cold intolerance, flexion contracture and donor site morbidity. Results: Seventeen of the 18 flaps done survived completely. One flap had partial necrosis of 3 mm that healed conservatively. Middle finger of the right hand was the most commonly injured finger. Touch, pain and pressure sensations recovered in 8-12 weeks. Two point discrimination was 4.5 mm at 6 months. The deficit of 5 degrees s was present at distal interphalangeal joint during active flexion at 6 months. Cold intolerance and flexion contracture were not seen and 2 instances of hypersensitivity at 2 months got cured conservatively after 4 months. Overall satisfaction of patients was 8/10. Conclusion: RHAF provides single staged well vascularised cover for fingertip injuries with good sensory recovery without damaging the adjacent uninjured finger. Hence, it can be a reliable flap for fingertip reconstruction in selected cases. PMID- 29343896 TI - Management of vascular anomalies: Review of institutional management algorithm. AB - Introduction: Vascular anomalies are congenital lesions broadly categorised into vascular tumour (haemangiomas) and vascular dysmorphogenesis (vascular malformation). The management of these difficult problems has lately been simplified by the biological classification and multidisciplinary approach. To standardise the treatment protocol, an algorithm has been devised. The study aims to validate the algorithm in terms of its utility and presents our experience in managing vascular anomalies. Materials and Methods: The biological classification of Mulliken and Glowacki was followed. A detailed algorithm for management of vascular anomalies has been devised in the department. The protocol is being practiced by us since the past two decades. The data regarding the types of lesions and treatment modality used were maintained. Results and Conclusion: This study was conducted from 2002 to 2012. A total of 784 cases of vascular anomalies were included in the study of which 196 were haemangiomas and 588 were vascular malformations. The algorithmic approach has brought an element of much-needed objectivity in the management of vascular anomalies. This has helped us to define the management of particular lesion considering its pathology, extent and aesthetic and functional consequences of ablation to a certain extent. PMID- 29343897 TI - Contralateral lumbo-umbilical flap: A versatile technique for volar finger coverage. AB - Background: While contemplating any difficult soft tissue reconstruction, patient comfort and compliance is of paramount importance. Reconstruction of the volar aspect of fingers and hand by the ipsilateral pedicled flaps (groin flap, abdominal flaps) is demanding as the flap inset is difficult for the surgeon and very uncomfortable for the patient. This often leads to flap complications. For the comfort of the patient, better compliance and ease of complete inset, we planned to manage soft tissue defects of the volar aspect of fingers and hand by a new contralateral pedicled lumbo-umbilical flap. This flap is based on the paraumbilical perforators of deep inferior epigastric artery. Materials and Methods: The contralateral pedicled lumbo-umbilical flap was used in eight patients with high-tension electrical burn injuries involving the volar aspect of fingers and hand. The patients were closely observed for first 6 weeks for any flap or donor site complications and then followed monthly to assess donor and recipient site characteristics for 6 months to 2 years. Results and Conclusion: Large flaps up to 8 cm * 16 cm were raised. All but one flaps survived completely. All patients were mobilised within 48 h and five were discharged in less than a week after initial inset. The flap is reliable, easy to harvest and easy to inset on the volar aspect of fingers. The arm is positioned in a very comfortable position. The main disadvantage, however, is a conspicuous abdominal scar. PMID- 29343898 TI - Assessment of temporomandibular joint dysfunction in condylar fracture of the mandible using the Helkimo index. AB - Introduction: Condylar fractures of the mandible are functionally important fractures as the condyle of the mandible being a part of the temporomandibular joint (TMJ) and can lead to TMJ dysfunction if not properly treated. Materials and Methods: This was a cross-sectional study of a total of 33 treated patients with fracture of the mandibular condyle who underwent examination as per the Helkimo index. Their dysfunction was quantified and clinicoepidemiological characteristics were assessed. It was found that majority of our patients were young males involved in a two-wheeler accident. All patients underwent intermaxillary fixation as the minimum treatment and 30% underwent open reduction and internal fixation in addition. Results: There was no statistically significant association between the degree of clinical dysfunction and factors such as age, mechanism of injury, type of condyle fracture, presence of other mandible fractures, and surgical procedure. However, dislocation of the mandibular condyle was found to be a negative prognostic factor and all these patients had some degree of dysfunction. Conclusion: The overall prevalence of TMJ dysfunction according to the Helkimo index was 90%. About 61% of patients had mild dysfunction (Di1) and 30% had moderate dysfunction (Di2). None of the patients had severe dysfunction. To conclude, the Helkimo index is a simple, effective, inexpensive, reliable screening index to assess TMJ dysfunction in condylar fractures of mandible. PMID- 29343899 TI - Flap cover in a patient with severe haemophilia type A. AB - Haemophilia A is a rare haematological disorder due to deficiency of Factor VIII, causing an abnormal coagulation response to injury. In severe haemophilia A, Factor VIII level is < 1%, often manifesting with spontaneous bleeding into joints. Judicious use of recombinant Factor VIII therapy to maintain adequate levels in the intraoperative, immediate and late post-operative periods, together with adjuvant pro-coagulants, can ensure a safe outcome following surgery. We describe the successful management of one such patient suffering from Marjolin's ulcer of the right gluteal region, who needed wide local excision followed by flap cover. A protocol for management of such patients is also suggested. This is the first such case report from the Indian subcontinent, with only a few such published reports from the West. PMID- 29343900 TI - Direct electrical injury to brachial plexus. AB - Electrical current can cause neurological damage directly or by conversion to thermal energy. However, electrical injury causing isolated brachial plexus injury without cutaneous burns is extremely rare. We present a case of a 17-year old boy who sustained accidental electrical injury to left upper extremity with no associated entry or exit wounds. Complete motor and sensory loss in upper limb were noted immediately after injury. Subsequently, the patient showed partial recovery in muscles around the shoulder and in ulnar nerve distribution at 6 months. However, there was no improvement in muscles supplied by musculocutaneous, median and radial nerves. On exploration at 6 months after trauma, injury to the infraclavicular plexus was identified. Reconstruction of musculocutaneous, median and radial nerves by means of sural nerve cable grafts was performed. The patient has shown excellent recovery in musculocutaneous nerve function with acceptable recovery of radial nerve function at 1-year post-injury. PMID- 29343901 TI - A modified Lund and Browder chart. PMID- 29343902 TI - An axillary port with concealed scar for liposuction of gynaecomastia. PMID- 29343903 TI - Whose evidence do we follow? PMID- 29343904 TI - Medical Council of India's amended qualifications for Indian medical teachers: Well intended, yet half-hearted. PMID- 29343905 TI - What's inside. PMID- 29343906 TI - Round up. PMID- 29343907 TI - New therapies in nonmuscle invasive bladder cancer treatment. AB - Introduction: Nonmuscle invasive bladder cancer (NMIBC) remains a very challenging disease to treat with high rates of recurrence and progression associated with current therapies. Recent technological and biological advances have led to the development of novel agents in NMIBC therapy. Methods: We reviewed existing literature as well as currently active and recently completed clinical trials in NMIBC by querying PubMed.gov and clinicaltrials.gov. Results: A wide variety of new therapies in NMIBC treatment are currently being developed, utilizing recent developments in the understanding of immune therapies and cancer biology. Conclusion: The ongoing efforts to develop new therapeutic approaches for NMIBC look very promising and are continuing to evolve. PMID- 29343909 TI - Decline in semen parameters from 2000 to 2016 among Bangladeshi men attending a tertiary care hospital. AB - Introduction: The objective of this study was to analyze longitudinal changes in sperm parameters of Bangladeshi men. We hypothesized that semen parameters declined for this population. Methods: We retrospectively analyzed semen data from men aged 18-64 years who sought care for general sperm quality or updates on fertility status at an infertility clinic in Dhaka, Bangladesh, from January 2000 to June 2016 (n = 13,953). Samples with incomplete data were excluded (n = 143). The WHO normal criteria and semen analysis procedures were used to evaluate parameters of the remaining 13,810 specimens. Samples with missing values on sperm concentration (n = 6187) were excluded from concentration analyses. Age and duration of abstinence at testing were recorded and adjusted for. Data were imported into SAS(r) 9.4 statistical software. Temporal significance was investigated using one-way ANOVA for motility parameters and Chi-square test for raw concentration. Logistic regression analyzed the effects of confounders on azoospermia and raw concentration, while median regression modeling adjusted confounders for concentration, total motility, and rapid linear (RL) motility. Results: Age distribution was significantly correlated with annual parameter changes (concentration, total motility, and RL motility [P < 0.0001]). Adjusted total motility and RL motility declined by 20% from their maximum values to end of the study (P < 0.0001). Raw concentration lacked clear trends and was unaffected by adjustment. Azoospermia increased by 18% between the 2000-2010 and 2011-2016 participants (odds ratio = 0.16 [0.14-0.16]). Conclusion: In agreement with the hypothesis, Bangladeshi males attending this clinic have experienced decline in semen parameters (total motility and RL motility) and increased frequency of azoospermia. PMID- 29343908 TI - PET-CT and PET-MR in urological cancers other than prostate cancer: An update on state of the art. AB - Hybrid positron emission tomography with computed tomography (PET/CT) and magnetic resonance imaging (PET/MRI) have enabled the combination of morphologic and functional imaging with the promise of providing better information in guiding therapy. Further advance has been made in the past decade with the development of newer radiotracers and optimization of the technical aspects. We performed a search in PubMed, Scopus, and Google Scholar for peer-reviewed literature concerning the advances and newer developments in the imaging of nonprostate urologic cancers between 2005 and 2017. This review aims at summarizing the current evidence on PET imaging in nonprostate urologic cancers and their impact on the diagnosis, staging, prognostication, response assessment, and restaging of these malignancies. However, much of the evidence is still in infancy and has not been incorporated into routine management or the practice guidelines of National Comprehensive Cancer Network or European Society for Medical Oncology (ESMO). PMID- 29343910 TI - Urodynamic outcomes of tamsulosin in the treatment of primary bladder neck obstruction in men. AB - Introduction: Alpha blockers are widely used in the treatment of primary bladder neck obstruction; however, evidence for objective urodynamic efficacy is scarce. We studied the effect of the uroselective alpha1-blocker tamsulosin on urodynamic parameters in male patients with type I primary bladder neck obstruction. Methods: A single center prospective observational study was carried out from July 2013 to February 2015. Male patients (18-50 years) with type 1 primary bladder neck obstruction were recruited. Selected patients were started on tablet tamsulosin 0.4 mg once daily for 3 months. International prostate symptom score (IPSS), uroflow and urodynamic studies were done pre- and post-treatment. Primary outcome was decreased in minimum detrusor pressure at maximum flow rate by 15%. Wilcoxon-matched pair signed-rank test was used. Results: Of 39 patients recruited, 21 patients completed the follow-up as per protocol and were analyzed. Mean age was 41 years. 57% patients achieved the primary outcome (median detrusor pressure pre- and post-treatment were 71 and 56 cm of water, P < 0.001). Similarly, median values for bladder outlet obstruction index (BOOI) and IPSS decreased from 59 to 38 (P < 0.001) and 22 to 12 (P < 0.001), respectively. Median maximum flow rate increased from 8 to 10 ml (P = 0.05). Pretreatment BOOI of >60 was associated with poor outcomes. Conclusions: Tamsulosin 0.4 mg once a day is effective in reducing bladder outlet obstruction on pressure flow studies in patients with primary bladder neck obstruction type 1. PMID- 29343911 TI - Oncologic outcomes in patients with nonurothelial bladder cancer. AB - Introduction: We aimed to evaluate the relative prognostic impact of the most common variant histologies on disease-specific survival (DSS) in patients undergoing radical cystectomy. Materials and Methods: The Surveillance, Epidemiology, and End Result database was used to identify patients who underwent radical cystectomy for bladder cancer from 1990 to 2007. Patients with urothelial cell carcinoma (UCC), squamous cell carcinoma (SCC), adenocarcinoma (AC), sarcoma, small cell carcinoma, signet ring carcinoma, and spindle cell carcinoma were included in the study. Multivariable analysis was performed using Cox proportional hazards model to assess independent predictors of disease-specific survival (DSS). Mortality rates were estimated using Kaplan-Meier analyses. Results: A total of 14,130 patients met inclusion criteria with the following histologies: UCC (90.1%), SCC (4.6%), AC, (2.3%), sarcoma (0.8%), small cell carcinoma (0.8%), signet ring carcinoma (0.5%), and spindle cell carcinoma (0.9%). Three-year DSS was most favorable in patients with UCC (63.7%; 95% confidence interval [62.9%-64.8%]) and AC (65.3% [59.3%-70.6%]), whereas 3-year DSS was the least favorable for small cell carcinoma (41.6% [31.3%-51.6%]) and sarcoma (45.4% [35.1%-55.1%]). In the multivariable analysis, independent predictors of DSS were age, marital status, grade, T-stage, N-stage, and variant histology. With respect to UCC, there was an increased risk of disease-specific death associated with all variants except AC. Sarcoma and spindle cell carcinoma were associated with the highest risk of death. Conclusions: With the exception of AC, the most common variant bladder cancer histologies are all independently associated with worse DSS relative to UCC in patients undergoing radical cystectomy. PMID- 29343912 TI - Lateral percutaneous nephrolithotomy: A safe and effective surgical approach. AB - Introduction: Percutaneous nephrolithotomy (PCNL) is traditionally performed with the patient in the prone position for large renal calculi. However, anesthetic limitations exist with the prone position. Similarly, the supine position is associated with poorer ergonomics due to the awkward downward position of the renal tract, a smaller window for percutaneous puncture, and a higher risk of anterior calyx puncture. This study aimed to demonstrate the feasibility and safety of lateral-PCNL in managing large renal calculi without the disadvantages of prone and supine positions. Methods: Retrospectively, 347 lateral-PCNL cases performed from July 2001 to July 2015 were examined. the patient's thorax, abdomen, and pelvis were positioned over a bridge perpendicular to a "broken" table, creating an extended lumbodorsal space. The procedure was evaluated in terms of stone clearance at 3 months' postprocedure, operative time, and complications. Results: Primary stone clearance was achieved in 82.7% of patients. The mean operating time was 97 min. The average time taken to establish the tract and mean radiation time were 4.5 min and 6.93 min, respectively. In total, 2.3% of patients required postoperative transfusion, and 13.5% of patients had postoperative fever. There was one case of hydrothorax, but no bowel perforation. Conclusions: Our lateral-PCNL technique allows for effective stone clearance due to good stone ergonomics and it should be considered as a safe alternative even in the most routine procedures. PMID- 29343913 TI - Comparison of RENAL, PADUA, and C-index scoring systems in predicting perioperative outcomes after nephron sparing surgery. AB - Introduction and Objective: The RENAL, PADUA and centrality index (C-index) nephrometry scoring systems (SS) have been individually evaluated for their role in predicting trifecta outcomes after nephron-sparing surgery (NSS). However, there is little data on their comparative superiority. The present study was designed to evaluate the predictive value of three SS and to assess interobserver reliability. Materials and Methods: Fifty patients undergoing NSS at our center between January 2014 and April 2016 were included in the study. The demographic details were noted. Images (computed tomography [CT] scans or magnetic resonance imaging) were reviewed by a urologist and a radiologist independently and RENAL, PADUA, and C-index were calculated. The correlation between these scoring system and trifecta outcomes were calculated. Results: The RENAL and PADUA score did not correlate with any of the perioperative parameters. However, C-index had a significant correlation with operative time (OT) (P = 0.02) and trifecta outcomes (P < 0.05). There was an excellent concordance between the two observers in scoring the RENAL score (alpha = 0.915; intraclass correlation coefficient [ICC] = 0.814) and PADUA score (alpha = 0.816; ICC = 0.689 [P < 0.001]). There was lesser although acceptable concordance in the calculation of C-index (ICC -0.552; alpha -0.711). Conclusions: There is good correlation among all the 3 SS. C-index has lower reproducibility due to difficult mathematical calculation but correlated best with trifecta outcomes. PMID- 29343914 TI - Symptomatic lower urinary tract dysfunction in sacral agenesis: Potentially high risk? AB - Introduction: Sacral agenesis (SA) is a caudal regression anomaly that can cause neurogenic bladder but is not generally recognized as high risk. We studied the clinical presentation, upper urinary tract, bone and spine abnormalities, and urodynamic findings in patients with SA and compared them with related high-risk conditions, anorectal malformation (ARM), and cloacal malformation. Materials and Methods: Patient records between May 2011 and December 2015 were identified and grouped into isolated SA without an overt anomaly (Group I), SA with overt caudal regression anomalies (Group II), and ARM or cloacal malformation without the SA (Group III). Distribution of clinical and urodynamic findings and factors associated with reduced eGFR were tested with rank sum test, t-test, and unadjusted odds (P < 0.05 significant) using R statistical program (version 3.1.3). Results: Of 605 neurogenic bladder patients treated in the study period, 39 fulfilled the inclusion criteria. 12 were Group I, 5 Group II, and 22 Group III. Long-standing lower urinary symptoms were noted in all SA patients. Group I patients were older (14.5 years vs. 6 years and 5 years for II and III). Patients with SA (Group I and II) had poor compliance (6.7 ml/cmH2O, interquartile range [IQR] 4-13.6 ml/cmH2O), reduced age-adjusted bladder capacity (59%, IQR 22-85%), elevated end-fill pressure (22 cmH2O, IQR 11-28 cmH2O), hydronephrosis (88%), and reduction in eGFR (29%), all comparable to Group III. Most had Renshaw type II SA and tethered spinal cord rather than wedge-shaped termination. Limitations include small numbers and significant selection bias. Conclusions: Symptomatic neurogenic bladder due to SA may cause renal damage similar to ARM but often eludes diagnosis. PMID- 29343915 TI - Impact of learning curve on the perioperative outcomes following robot-assisted partial nephrectomy for renal tumors. AB - Introduction: Robot-assisted partial nephrectomy (RAPN) is an established, minimally invasive technique to treat patients with renal masses. The aim of this study was to assess the learning curve (LC) of RAPN, evaluate its impact on perioperative outcomes following RAPN and to study the role of surgeon experience in achieving "trifecta" outcomes following RAPN. Methods: We prospectively analyzed the clinical and pathological outcomes of 108 consecutive patients who underwent RAPN for renal tumors from January 2012 to December 2016 by a laparoscopy trained surgeon with no prior robotic experience. We used warm ischemia time (WIT) <20 min, operative time <120 min, and blood loss <100 ml as endpoints for plotting the LCs. Trifecta was analyzed in relation to our LC. Results: Surgeon experience was found to correlate with WIT, operative time, and blood loss. Overall 18.5% of patients developed complications. Complication rate reduced with increasing surgeon experience. LC was 44 cases for WIT <=20 min, 44 cases for operative time <120 min, and 54 cases for blood loss <100 ml. Trifecta outcome was achieved in 67.6% patients overall and was found to correlate with increasing surgeon experience. Improvement in trifecta outcomes continued to occur beyond the LC. Conclusions: RAPN is a viable option for nephron-sparing surgery in patients with renal carcinoma. For a surgeon trained in laparoscopy, acceptable perioperative outcomes following RAPN can be achieved after an LC of about 44 cases. Increasing surgeon experience was associated with improved "trifecta" achievement following RAPN. PMID- 29343916 TI - Effects of tumor size and location on survival in upper tract urothelial carcinoma after nephroureterectomy. AB - Introduction: Upper Tract Urothelial Carcinoma (UTUC) is a rare disease with few prognostic determinants. We sought to evaluate the impact of tumor size and location on patient survival following nephroureterectomy for UTUC. Materials and Methods: Data on 8284 patients treated with radical nephroureterectomy for UTUC in the United States between 1998 and 2011 were analyzed from the National Cancer Data Base. Univariable survivorship curves were generated based on pT stage, pN stage, grade, tumor size, and tumor site (renal pelvis vs. ureter). A Cox proportional hazards model was used to evaluate the effect of age, comorbidity, T stage, lymph node involvement, tumor site, and tumor size on survival. Results: The median follow-up time was 46 months. A majority of the patients were male (55.4%) with a tumor size of >=3.5 cm (52.0%) and pT stage =3.5 cm the 5-year OS was 45.9% and 58.5%, respectively. On multivariable analysis controlling for age, Charlson comorbidity index, grade, and tumor stage, tumor size >=3.5 cm was independently predictive of worse OS (odds ratio: 1.13 [95% confidence interval: 1.02-1.26], P = 0.023). Conclusions: Using the largest series of patients with UTUC undergoing nephroureterectomy, we demonstrated a worse survival in patients with larger tumor sizes (>=3.5 cm) but no difference in survival based on tumor location while controlling for other pathologic characteristics. Incorporation of tumor size into perioperative risk modeling may help with patient stratification and provide further prognostic information for patient counseling. PMID- 29343917 TI - Editorial comment on "Effects of tumor size and location on survival in upper tract urothelial carcinoma after nephroureterectomy". PMID- 29343918 TI - Pediatric pelvic fracture urethral distraction defect causing complete urethrovaginal avulsion. AB - Pelvic fracture with urethral injury in girls is an uncommon entity that is usually associated with concomitant vaginal lacerations. Management options vary from immediate exploration and urethral anastomosis to delayed urethroplasty. We report our experience of managing a 10-year old girl presenting 6 months after a pelvic fracture with urethrovaginal injury and a completely obliterated urethral meatus managed successfully with a single-stage bladder tube repair. PMID- 29343919 TI - Papillary renal cell carcinoma with abscess formation: A report of three cases. AB - We report three cases of renal cell carcinoma (RCC) associated with abscess formation. Such association has been reported uncommonly in literature. Our cases were unique in that final histopathological report was papillary RCC in all of the patients. PMID- 29343920 TI - Extrarenal retroperitoneal angiomyolipoma with oncocytoma. AB - The simultaneous presence of renal angiomyolipoma and oncocytoma is a rare occurrence. Extrarenal retroperitoneal angiomyolipoma is an even more rare neoplasm, and its simultaneous presence with renal oncocytoma has not been documented. We present herein the first case to be reported in English literature. PMID- 29343921 TI - Ureteropelvic junction obstruction - mimicking an "elephant head" on magnetic resonance imaging. AB - Ureteropelvic junction obstruction (UPJO) with giant hydronephrosis is relatively rare in adults as compared to children. Most of the UPJO reported or seen in daily practice have a distinct hydronephrosis with a narrow ureteropelvic junction and a collapsed ureter distally. We present images a case of an adult female with Left UPJO, which on MRI mimicked an 'elephant head'. PMID- 29343922 TI - Periureteral inferior vena caval venous ring presenting as urinary obstruction. AB - The embryological development of the inferior vena cava (IVC) is complex, and thus the vena cava may undergo a large number of congenital anomalies. Periureteric venous ring is a rare developmental anomaly of IVC where the right ureter passes through a slit-like opening in a partially duplicated infrarenal IVC, resulting in dilatation of upper urinary tract. Split-bolus multidetector computed tomography technique is useful in detecting such vascular anomaly causing ureteric obstruction as it can clearly show the vascular and ureteric phase in a single acquisition. PMID- 29343923 TI - Author Reply Re: Goel A. Research training during residency. Indian J Urol 2017;33:257-8. PMID- 29343924 TI - IJU Awards 2017. PMID- 29343925 TI - From Editor's Desk. PMID- 29343926 TI - Cancer: Prevention and Rehabilitation through Yoga. PMID- 29343928 TI - Exploration of Lower Frequency EEG Dynamics and Cortical Alpha Asymmetry in Long term Rajyoga Meditators. AB - Background: Rajyoga meditation is taught by Prajapita Brahmakumaris World Spiritual University (Brahmakumaris) and has been followed by more than one million followers across the globe. However, rare studies were conducted on physiological aspects of rajyoga meditation using electroencephalography (EEG). Band power and cortical asymmetry were not studied with Rajyoga meditators. Aims: This study aims to investigate the effect of regular meditation practice on EEG brain dynamics in low-frequency bands of long-term Rajyoga meditators. Settings and Design: Subjects were matched for age in both groups. Lower frequency EEG bands were analyzed in resting and during meditation. Materials and Methods: Twenty-one male long-term meditators (LTMs) and same number of controls were selected to participate in study as par inclusion criteria. Semi high-density EEG was recorded before and during meditation in LTM group and resting in control group. The main outcome of the study was spectral power of alpha and theta bands and cortical (hemispherical) asymmetry calculated using band power. Statistical Analysis: One-way ANOVA was performed to find the significant difference between EEG spectral properties of groups. Pearson's Chi-square test was used to find difference among demographics data. Results: Results reveal high-band power in alpha and theta spectra in meditators. Cortical asymmetry calculated through EEG power was also found to be high in frontal as well as parietal channels. However, no correlation was seen between the experience of meditation (years, hours) practice and EEG indices. Conclusion: Overall findings indicate contribution of smaller frequencies (alpha and theta) while maintaining meditative experience. This suggests a positive impact of meditation on frontal and parietal areas of brain, involved in the processes of regulation of selective and sustained attention as well as provide evidence about their involvement in emotion and cognitive processing. PMID- 29343929 TI - Yoga Offers Cardiovascular Protection in Early Postmenopausal Women. AB - Context: Postmenopause, an estrogen deficient state comes with increased incidence of cardiovascular diseases (CVDs). Yoga has been described as having a beneficial effect on heart rate variability (HRV), a marker for cardiac autonomic activity which can assess cardiovascular risk, in various populations. Aim: the aim of the study was to study the effect of 3-month long Yoga practice on HRV in early postmenopausal women. Settings and Design: A prospective longitudinal study of 67 women within 5 years of menopause between 45 and 60 years of age attending menopause clinic of Department of Gynaecology, Sucheta Kriplani Hospital fulfilling inclusion and exclusion criteria and consenting were enrolled for the study. Subjects and Methods: HRV of 37 cases (Yoga group) and 30 controls (non Yoga group) was recorded pre and 3-month postintervention. Statistical Analysis Used: GraphPad Prism Version 5 software was used. Values are a mean and standard error of mean. Statistical significance was set up at P < 0.05. Results: In HRV, frequency domain analysis showed a significant fall in low frequency (LF) in normalized units (nu) and LF: high frequency (HF) ratio and significant rise in HF in nu in the Yoga group (depicting parasympathetic dominance) against a significant rise in LF (nu) and LF: HF ratio and significant fall in HF (nu) in non-Yoga group (indicating sympathetic dominance). Time domain analysis showed a significant decrease in Standard Deviation of NN intervals in Non-Yoga group against nonsignificant changes in Yoga group indicating deterioration in parasympathetic activity in non-Yoga group. Conclusions: Three-month long Yoga practice improved HRV in early postmenopausal women significantly and has the potential to attenuate the CVD risk in postmenopausal women. PMID- 29343927 TI - Yoga into Cancer Care: A Review of the Evidence-based Research. AB - To cope with cancer and its treatment-related side effects and toxicities, people are increasingly using complementary and alternative medicine (CAM). Consequently, integrative oncology, which combines conventional therapies and evidence-based CAM practices, is an emerging discipline in cancer care. The use of yoga as a CAM is proving to be beneficial and increasingly gaining popularity. An electronic database search (PubMed), through December 15, 2016, revealed 138 relevant clinical trials (single-armed, nonrandomized, and randomized controlled trials) on the use of yoga in cancer patients. A total of 10,660 cancer patients from 20 countries were recruited in these studies. Regardless of some methodological deficiencies, most of the studies reported that yoga improved the physical and psychological symptoms, quality of life, and markers of immunity of the patients, providing a strong support for yoga's integration into conventional cancer care. This review article presents the published clinical research on the prevalence of yoga's use in cancer patients so that oncologists, researchers, and the patients are aware of the evidence supporting the use of this relatively safe modality in cancer care. PMID- 29343931 TI - Effect of Modified Slow Breathing Exercise on Perceived Stress and Basal Cardiovascular Parameters. AB - Context: Different types of breathing exercises have varied effects on cardiovascular parameters and the stress levels in an individual. Aim: The aim of this study was to assess the effect of a modified form of isolated alternate nostril, slow breathing exercise on perceived stress, and cardiovascular parameters in young, male volunteers. Settings and Design: This was a randomized control study carried out at Advanced Centre for Yoga Therapy Education and Research, Department of Physiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry in 2014. Subjects and Methods: Hundred healthy male volunteers were randomized into control group, n = 50 and slow breathing group (study), n = 50. Slow breathing exercise training was given to study group for 30 min a day, 5 times/week for 12 weeks, under the supervision of certified yoga trainers. Perceived Stress Scale (PSS) using Cohen's questionnaire, anthropometric parameters such as body mass index (BMI), waist-hip ratio (WHR), and cardiovascular parameters such as heart rate (HR), systolic blood pressure (SBP), and diastolic blood pressure (DBP) were recorded at baseline and after 12 weeks. The control group did not receive any intervention. Slow breathing exercise training was provided for the study group. During the study period, one volunteer opted out of the study group due to personal reasons. Results: HR, SBP, DBP, and PSS decreased significantly (P < 0.05) in the study group following 12 weeks slow breathing exercise training, while no significant change (P > 0.05) was observed in BMI and WHR. There was no significant change in the control group. Conclusion: Twelve weeks of modified slow breathing exercise reduced perceived stress and improved the cardiovascular parameters. The above results indicate that our modified slow breathing exercise is effective in reducing stress and improving the cardiovascular parameters. PMID- 29343930 TI - Yoga-Based Postoperative Cardiac Rehabilitation Program for Improving Quality of Life and Stress Levels: Fifth-Year Follow-up through a Randomized Controlled Trial. AB - Objectives: This study was aimed to assess the efficacy of yoga-based lifestyle program (YLSP) in improving quality of life (QOL) and stress levels in patients after 5 years of coronary artery bypass graft (CABG). Methodology: Three hundred patients posted for elective CABG in Narayana Hrudayalaya Super Speciality Hospital, Bengaluru, were randomized into two groups: YLSP and conventional lifestyle program (CLSP), and follow-up was done for 5 years. Intervention: In YLSP group, all practices of integrative approach of yoga therapy such as yama, niyama, asana, pranayama, and meditation were used as an add-on to conventional cardiac rehabilitation. The control group (CLSP) continued conventional cardiac rehabilitation only. Outcome Measures: World Health Organization (WHO)-QOL BREF Questionnaire, Perceived Stress Scale, Positive and Negative Affect Scale (PANAS), and Hospital Anxiety and Depression Scale (HADS) were assessed before surgery and at the end of the 5th year after CABG. As data were not normally distributed, Mann-Whitney U-test was used for between-group comparisons and Wilcoxon's signed-rank test was used for within-group comparisons. Results: At the end of 5 years, mental health (P = 0.05), perceived stress (P = 0.01), and negative affect (NA) (P = 0.05) have shown significant improvements. WHO-QOL BREF score has shown improvements in physical health (P = 0.046), environmental health (P = 0.04), perceived stress (P = 0.001), and NA (P = 0.02) in YLSP than CLSP. Positive affect has significantly improved in CLSP than YLSP. Other domains of WHO-QOL-BREF, PANAS, and HADS did not reveal any significant between-group differences. Conclusion: Addition of long-term YLSP to conventional cardiac rehabilitation brings better improvements in QOL and reduction in stress levels at the end of 5 years after CABG. PMID- 29343932 TI - Effects of Multimodal Mandala Yoga on Social and Emotional Skills for Youth with Autism Spectrum Disorder: An Exploratory Study. AB - Context: Youth with autism spectrum disorder (ASD) demonstrates impairment in the ability to socially and emotionally relate to others that can limit participation in groups, interaction with peers, and building successful life relationships. Aims: The aim of this exploratory study was to examine the effects of a novel multimodal Mandala yoga program on social and emotional skills for youth with ASD. Subjects and Methods: Five males with ASD attended 1 h yoga sessions, twice a week for 4 weeks. Multimodal Mandala yoga comprised 26 circular partner/group poses, color and tracing sheets, rhythmic chanting, yoga cards, and games. Treatment and Research Institute for ASD Social Skills Assessment (TSSA) scores were collected before and after the eight yoga sessions. The Modified Facial Mood Scale (MFMS) was used to observe mood changes before and after each yoga class. Paired sample t-tests were conducted on TSSA and MFMS scores to compare social and emotional differences post the 4-week camp. Narrative field notes were documented after each of the eight yoga sessions. Results: A significant improvement from pre- to post-test was found in overall TSSA (t(4) = -5.744, P = 0.005) and on respondent to initiation (t(4) = -3.726, P = 0.020), initiating interaction (t(4) = -8.5, P = 0.039), and affective understanding and perspective taking subscales (t(4) = -5.171 P = 0.007). Youth's MFMS scores increased from 80% to 100% at the end of eight yoga sessions demonstrating a pleasant or positive mood. Thematic analysis of the narrative notes identified three key factors associated with the yoga experience: (a) enhanced mood and emotional expression, (b) increased empathy toward others, and (c) improved teamwork skills. Conclusion: This multimodal Mandala yoga training has implication for developing positive social and emotional skills for youth with ASD. PMID- 29343933 TI - Effects of Maharishi Yoga Asanas on Mood States, Happiness, and Experiences during Meditation. AB - Context/Background: Many studies showed positive effects of Yoga Asanas. There is no study on Maharishi Yoga Asanas yet. This research replicated and expanded observed improvements on the profile of mood states (POMS) as a result of 2-week Maharishi Yoga Asanas course. Thirteen college students taking part in a 4-week course on Maharishi Yoga Asanas were matched with 13 students taking other courses at the university. Aims and Objective: The main objective of the study was to assess the effects of Maharishi Yoga Asanas on mood states, degree of happiness, and experiences in Transcendental Meditation (TM) practice. Methods: All students were given two psychological tests and additional question before and after their 4-week course: POMS, Meditation Depth Questionnaire, and question about the degree of happiness. Results: Repeated measure MANOVA showed the 4-week Maharishi Yoga Asanas course resulted in significant increase in happiness during the day and significant improvements in (1) sense of personal self, (2) transpersonal qualities, and (3) transpersonal self during their TM practice. Conclusion: This research shows that Maharishi Yoga Asanas affect more than body and mind. Rather they influence much deeper levels of one's subjectivity including one's transpersonal self. PMID- 29343934 TI - A Comparative Study on the Effects of Vintage Nonpharmacological Techniques in Reducing Myopia (Bates eye exercise therapy vs. Trataka Yoga Kriya). AB - Background: Human eye captures light rays as they come and fall on the retina and convert them into an image. However, in myopia, light rays fall in front of retina, causing blurring of image. Correction of this is generally done using correcting devices such as corrective glasses and contact lenses. Existence of some alternative therapies is also noticed in literature. Aim: To compare the effects of Bates eye exercises and Trataka Yoga Kriya on myopia. Materials and Methodology: Ethical clearance was obtained from the institution, and informed consent was taken from participants. In this randomized comparative study, 24 participants (48 eyes) were taken based on inclusion and exclusion criteria and were randomly divided into two groups: Group A and Group B, where Bates eye exercise therapy and Trataka Yoga Kriya were given, respectively, for 8 weeks. Participants were assessed for their refractive errors and visual acuity pre- and post-intervention. Results: Data were analyzed by SPSS version 20. Results obtained revealed that both Bates exercises and Trataka Yoga Kriya were not significantly effective in reducing refractive errors and in improving visual acuity (P value of refractive error in right eye: 0.4250; left eye: 0.4596; P value of visual acuity in right eye: 0.5691; left eye: 0.8952). Conclusion: This study concludes that nonpharmacological approaches such as eye exercises and Trataka Yoga Kriya are not significant on myopia. PMID- 29343935 TI - Effectiveness of Mindfulness-based Cognitive Therapy in Patients with Bipolar Affective Disorder: A Case Series. AB - The present investigation was undertaken to examine the effects of mindfulness based cognitive therapy (MBCT) on interepisodic symptoms, emotional regulation, and quality of life in patients with bipolar affective disorder (BPAD) in remission. The sample for the study comprised a total of five patients with the diagnosis of BPAD in partial or complete remission. Each patient was screened to fit the inclusion and exclusion criteria and later assessed on the Beck Depressive Inventory I, Beck Anxiety Inventory, Difficulties in Emotion Regulation Scale, Acceptance and Action Questionnaire-II, and The World Health Organization Quality of Life Assessment-BREF. Following preassessments, patients underwent 8-10 weeks of MBCT. A single case design with pre- and post intervention assessment was adopted to evaluate the changes. Improvement was observed in all five cases on the outcome variables. The details of the results are discussed in the context of the available literature. Implications, limitations, and ideas for future investigations are also discussed. PMID- 29343936 TI - The Conclusions Are Unsupported by the Data, Are Based on Invalid Analyses, Are Incorrect, and Should be Corrected: Letter Regarding "Sleep Quality and Body Composition Variations in Obese Male Adults after 14 weeks of Yoga Intervention: A Randomized Controlled Trial". PMID- 29343937 TI - Response to Comment on "Sleep Quality and Body Composition Variations in Obese Male Adults after 14 Weeks of Yoga Intervention: A Randomized Controlled Trial" by Rshikesan et al., 2017. PMID- 29343938 TI - CINdex: A Bioconductor Package for Analysis of Chromosome Instability in DNA Copy Number Data. AB - The CINdex Bioconductor package addresses an important area of high-throughput genomic analysis. It calculates the chromosome instability (CIN) index, a novel measurement that quantitatively characterizes genome-wide copy number alterations (CNAs) as a measure of CIN. The advantage of this package is an ability to compare CIN index values between several groups for patients (case and control groups), which is a typical use case in translational research. The differentially changed cytobands or chromosomes can then be linked to genes located in the affected genomic regions, as well as pathways. This enables in depth systems biology-based network analysis and assessment of the impact of CNA on various biological processes or clinical outcomes. This package was successfully applied to analysis of DNA copy number data in colorectal cancer as a part of multi-omics integrative study as well as for analysis of several other cancer types. The source code, along with an end-to-end tutorial, and example data are freely available in Bioconductor at http://bioconductor.org/packages/CINdex/. PMID- 29343939 TI - Kinetics of Procalcitonin in Pediatric Patients on Extracorporeal Membrane Oxygenation. AB - Objectives: To assess the kinetics of procalcitonin (PCT) and C-reactive protein (CRP) in pediatric patients who required extracorporeal membrane oxygenation (ECMO) and to analyze its relationship with morbidity and mortality. Patients and methods: Prospective observational study including pediatric patients who required ECMO. Both PCT and CRP were sequentially drawn before ECMO (P0) and until 72 hours after ECMO. Results: A total of 40 patients were recruited. Two cohorts were established based on the value of the P0 PCT (>10 ng/mL). Comparing the kinetics of PCT and CRP in these cohorts, the described curves were the expected for each clinical situation. The cutoff for P0 PCT to predict multiple organ dysfunction syndrome was 2.55 ng/mL (sensibility 83%, specificity 100%). Both PCT and CRP did not predict risk of neurologic sequelae or mortality in any group. Conclusions: Procalcitonin does not seem to be modified by ECMO and could be a good biomarker of evolution. PMID- 29343940 TI - Prescreening whole exome sequencing results from patients with retinal degeneration for variants in genes associated with retinal degeneration. AB - Background: Accurate clinical diagnosis and prognosis of retinal degeneration can be aided by the identification of the disease-causing genetic variant. It can confirm the clinical diagnosis as well as inform the clinician of the risk for potential involvement of other organs such as kidneys. It also aids in genetic counseling for affected individuals who want to have a child. Finally, knowledge of disease-causing variants informs laboratory investigators involved in translational research. With the advent of next-generation sequencing, identifying pathogenic mutations is becoming easier, especially the identification of novel pathogenic variants. Methods: We used whole exome sequencing on a cohort of 69 patients with various forms of retinal degeneration and in whom screens for previously identified disease-causing variants had been inconclusive. All potential pathogenic variants were verified by Sanger sequencing and, when possible, segregation analysis of immediate relatives. Potential variants were identified by using a semi-masked approach in which rare variants in candidate genes were identified without knowledge of the clinical diagnosis (beyond "retinal degeneration") or inheritance pattern. After the initial list of genes was prioritized, genetic diagnosis and inheritance pattern were taken into account. Results: We identified the likely pathogenic variants in 64% of the subjects. Seven percent had a single heterozygous mutation identified that would cause recessive disease and 13% had no obviously pathogenic variants and no family members available to perform segregation analysis. Eleven subjects are good candidates for novel gene discovery. Two de novo mutations were identified that resulted in dominant retinal degeneration. Conclusion: Whole exome sequencing allows for thorough genetic analysis of candidate genes as well as novel gene discovery. It allows for an unbiased analysis of genetic variants to reduce the chance that the pathogenic mutation will be missed due to incomplete or inaccurate family history or analysis at the early stage of a syndromic form of retinal degeneration. PMID- 29343941 TI - Clinical features of hypophosphatemic osteomalacia induced by long-term low-dose adefovir dipivoxil. AB - Objective: To investigate the predictors of hypophosphatemic osteomalacia induced by adefovir dipivoxil (ADV) and to monitor for early detection. Patients and methods: Hospitalized patients who were diagnosed with ADV-related hypo phosphatemic osteomalacia were recruited and retrospectively analyzed in our hospital from January 2012 to December 2016. A telephone interview was conducted at 1, 3, 6, 9, 12, and 24 months after cessation of ADV. Results: In the 8 patients enrolled in the study, the hypophosphatemic osteomalacia symptoms developed at an average of 5.14 (4-7) years since ADV treatment (10 mg/d). The average alkaline phosphatase (ALP) level was 279.50 (137-548) U/L, which was significantly higher than the normal level (45-125 U/L). The serum phosphorus level was an average of 0.59 (0.43-0.69) mmol/L, which was lower than the normal range (2.06-2.60 mmol/L). Serum calcium levels of the enrolled patients remained within normal limits. Reduced estimated glomerular filtration rate (eGFR <29 mL/min/1.73 m2) was seen in 4 cases. The clinical manifestations were mainly progressive systemic bone and joint pain, frequent fractures, trouble in walking, height reduction (4-6 cm), and so on. After cessation of ADV, symptoms like bone pain resolved gradually. Serum phosphorus level restored to normal in 4.5 months after the withdrawal of ADV. However, in 4 patients, renal function failed to return to normal in 24 months. Conclusion: More attention should be paid to the duration of ADV treatment. The level of serum phosphorus and ALP, as well as renal function, should be monitored for early detection of potential adverse drug reactions. PMID- 29343942 TI - Portulaca oleracea L. alleviates liver injury in streptozotocin-induced diabetic mice. AB - Purslane is a widespread succulent herb that exhibits various pharmacological effects. The purpose of this study was to evaluate the protective effect of Portulaca oleracea L. (purslane) on streptozotocin-induced diabetes in mice. Oral glucose-tolerance tests were carried out to assess blood glucose levels and body weight and food intake were recorded. The biochemical parameters anti-aspartate aminotransferase, alanine aminotransferase, insulin, triglycerides, total cholesterol, IL-6, IL-1beta, and TNFalpha were also measured. The pathological condition of liver tissues were examined by hematoxylin-eosin staining. Rho, ROCK1, ROCK2, NFkappaBp65, p-NFkappaBp65, IkappaBalpha, and p-IkappaBalpha expression in liver tissue were analyzed by Western blot. Purslane increased body weight and decreased food intake. Purslane also significantly reduced concentrations of glucose, anti-aspartate aminotransferase, alanine aminotransferase, triglycerides, total cholesterol, IL-6, IL-1beta, and TNFalpha in serum. Serum insulin was elevated with purslane treatment. In addition, pathologic liver changes in diabetic mice were also alleviated by purslane. Obtained data revealed that purslane restored the levels of Rho-NFkappaB signaling-related proteins in comparison with those of diabetic mice. Above all, it can be assumed that purslane might play a positive role in regulating streptozotocin-induced liver injury through suppressing the Rho-NFkappaB pathway. PMID- 29343943 TI - The oral bioavailability, excretion and cytochrome P450 inhibition properties of epiberberine: an in vivo and in vitro evaluation. AB - Epiberberine (EPI) is a novel and potentially effective therapeutic and preventive agent for diabetes and cardiovascular disease. To evaluate its potential value for drug development, a specific, sensitive and robust high performance liquid chromatography-tandem mass spectrometry assay for the determination of EPI in rat biological samples was established. This assay was used to study the pharmacokinetics, bioavailability and excretion of EPI in rats after oral administration. In addition, a cocktail method was used to compare the inhibition characteristics of EPI on cytochrome P450 (CYP450) isoforms in human liver microsomes (HLMs) and rat liver microsomes (RLMs). The results demonstrated that EPI was rapidly absorbed and metabolized after oral administration (10, 54 or 81 mg/kg) in rats, with Tmax of 0.37-0.42 h and T1/2 of 0.49-2.73 h. The Cmax and area under the curve values for EPI increased proportionally with the dose, and the oral absolute bioavailability was 14.46%. EPI was excreted mainly in bile and feces, and after its oral administration to rats, EPI was eliminated predominantly by the kidneys. A comparison of the current half-maximal inhibitory concentration and Ki values revealed that EPI demonstrated an obvious inhibitory effect on CYP2C9 and CYP2D6. Furthermore, its effect was stronger in HLM than in RLM, more likely to be a result of noncompetitive inhibition. PMID- 29343944 TI - Quantitative assessment of the effects of chitosan intervention on blood pressure control. AB - Background: Chitosan is a popular dietary fiber often used to reduce dietary fat absorption to control weight and blood lipids. However, its effects on blood pressure (BP) have not been fully elucidated. We evaluated the effects of chitosan administration on systolic blood pressure (SBP) and diastolic blood pressure (DBP) through a pooled analysis of available randomized controlled trials (RCTs). Materials and methods: Electronic searches were conducted in Medline, Cochrane Library, Scopus, and EMBASE to identify relevant human placebo control RCTs. Trials that reported BP changes from baseline to study endpoint in patients receiving treatment of chitosan were included for analysis. Weighted mean difference (WMD) and 95% CIs were pooled using fixed-effects or random effects models. Statistical heterogeneity, prespecified subgroup, publication bias, sensitivity analysis, and meta-regression assessments were also tested. Results: Six hundred and seventeen participants from eight trials with 10 arms were included. Overall, chitosan administration did not significantly lower SBP (WMD: -1.41 mmHg, 95% CI: -3.29 to 0.47; P=0.14) and DBP (WMD: -0.61 mmHg, 95% CI: -1.75 to 0.52; P=0.29). However, our subgroup analyses indicated that chitosan consumption significantly reduced DBP in shorter-term (<12 weeks) and higher-dose (>2.4 g/day) arms. Funnel plots or Egger's tests analysis (P=0.36 and 0.43 for SBP and DBP, respectively) demonstrated that there was no significant publication bias in this study. Conclusion: This meta-analysis indicates that chitosan consumption significantly decreases DBP at higher dosage and in shorter term interventions, while chitosan has no significant effects on SBP. However, these results should be interpreted cautiously because of the limited eligible RCTs included in this meta-analysis; further large-scale, well-designed RCTs on this topic are urgently needed. PMID- 29343945 TI - The impact of pharmaceutical interventions on the rational use of proton pump inhibitors in a Chinese hospital. AB - Background: The prescriptions of proton pump inhibitors (PPIs) have raised concern due to both huge increase in medical expenditure and the possible long term adverse events caused by them; therefore, an approach to taper off the irrational use of PPIs by patients is clinically warranted. The aim of this study was to evaluate the impact of pharmaceutical interventions on the rational use of PPIs. Patients and methods: A single-center, pre- to post-intervention study (pharmaceutical interventions group and control group) was performed in a Chinese hospital. Pharmaceutical interventions were performed in the post-intervention group, including educative group activities, real-time monitoring of clinical records and making recommendations to doctors on PPI prescriptions based on the criteria set at the beginning of the study. The number of patients with rational indication, the accuracy rate of administration route, the duration of therapy and the changes in total PPI costs, mean PPI costs, mean total drug costs and mean hospitalization costs were the main outcome measures. Results: A total of 285 patients were included in the study. After 6 months of interventions, significant improvements in the number of patients with rational indication were found (96.5% in the pharmaceutical interventions group vs 71.8% in the control group, P<0.01). The accuracy rate of administration route was increased (99.3% vs 73.2%, P<0.05), while the duration of therapy was decreased (7.9+/-0.5 vs 14.3+/ 0.8, P<0.01). Pharmaceutical interventions led to significant reductions in mean PPIs costs, mean total drug costs and mean hospitalization costs (P<0.001). Conclusion: This study provides important evidence on the beneficial effect of pharmaceutical interventions on enhancing the rational use of PPIs and substantial cost saving by increasing the number of patients with rational indication and reducing the risk for long-term adverse events. PMID- 29343946 TI - A new pen device for injection of recombinant human growth hormone: a convenience, functionality and usability evaluation study. AB - Purpose: Adherence to recombinant human growth hormone (r-hGH) is critical to growth and other outcomes in patients with growth disorders, but the requirement for daily injections means that ease of use is an important factor. This study assessed the perceived ease of use and functionality of the prototype of a reusable pen injector (pen device) for r-hGH that incorporates several advanced features. Participants and methods: Semi-structured 60-minute qualitative interviews were conducted in 5 countries with 57 health care professionals (HCPs) and 30 patients with GH deficiency/caregivers administering r-hGH to patients, including children. HCPs had to be responsible for training in the use of r-hGH pen devices and to see >=4 r-hGH patients/caregivers per month. Patients/caregivers had to have experience with r-hGH administration for at least 6 months. Results: Thirty-seven (65%) of HCPs described the pen device as "simple" or "easy" to use. The aluminum body was generally perceived as attractive, high quality and comfortable to hold and operate. The ease of preparation and use made it suitable for both children and adults. The ability to dial back the r-hGH dose, if entered incorrectly, was mentioned as a major benefit, because other devices need several user steps to reset. Patients/caregivers felt the pen device was easy to use and the injection feedback features reassured them that the full dose had been given. Overall, 40 (70%) HCPs and 16 (52%) patients/caregivers were likely to recommend or request the pen device. Moreover, patients/caregivers rated the pen device higher than their current reusable pens and almost equal to the leading disposable device for ease of learning, preparation, administration and ease of use. Conclusion: The prototype pen device successfully met its design objectives and was very well accepted by HCPs and patients/caregivers for its ease of use, appearance and functionality. PMID- 29343947 TI - Patient preferences for important attributes of bipolar depression treatments: a discrete choice experiment. AB - Purpose: The purpose of this study was to assess patient preferences regarding pharmacological treatment attributes for bipolar depression using a discrete choice experiment (DCE). Methods: Adult members of an Internet survey panel with a self-reported diagnosis of bipolar depression were invited via e-mail to participate in a web-based DCE survey. Participants were asked to choose between hypothetical medication alternatives defined by attributes and levels that were varied systematically. The six treatment attributes included in the DCE were time to improvement, risk of becoming manic, weight gain, risk of sedation, increased blood sugar, and increased cholesterol. Attributes were supported by literature review, expert input, and results of focus groups with patients. Sawtooth CBC System for Choice-Based Conjoint Analysis was used to estimate the part-worth utilities for the DCE analyses. Results: The analytical sample included 185 participants (50.8% females) from a total of 200 participants. The DCE analyses found weight gain to be the most important treatment attribute (relative importance =49.6%), followed by risk of sedation (20.2%), risk of mania (13.0%), increased blood sugar (8.3%), increased cholesterol (5.2%), and time to improvement (3.7%). Conclusion: Results from this DCE suggest that adults with bipolar depression considered risks of weight gain and sedation associated with pharmacotherapy as the most important attributes for the treatment of bipolar depression. Incorporating patient preferences in the treatment decision-making process may potentially have an impact on treatment adherence and satisfaction and, ultimately, patient outcomes. PMID- 29343948 TI - Types and delivery of emotional support to promote linkage and engagement in HIV care. AB - Purpose: Despite recommendations for early entry into human immunodeficiency virus (HIV) care, many people diagnosed with HIV delay seeking care. Multiple types of social support (ie, cognitive, emotional, and tangible) are often needed for someone to transition into HIV care, but a lack of emotional support at diagnosis may be the reason why some people fail to stay engaged in care. Thus, the purpose of this study was to identify how people living with HIV conceptualized emotional support needs and delivery at diagnosis. Method: We conducted a secondary analysis of qualitative data from 27 people living with HIV, many of whom delayed entry into HIV care. Results: Participants described their experiences seeking care after an HIV diagnosis and identified components of emotional support that aided entry into care - identification, connection, and navigational presence. Many participants stated that these types of support were ideally delivered by peers with HIV. Conclusion: In clinical practice, providers often use an HIV diagnosis as an opportunity to educate patients about HIV prevention and access to services. However, this type of social support may not facilitate engagement in care if emotional support needs are not met. PMID- 29343949 TI - Clinical observations on the use of new anti-VEGF drug, conbercept, in age related macular degeneration therapy: a meta-analysis. AB - Purpose: Conbercept is a new anti-vascular endothelial growth factor (VEGF) drug approved for the treatment of age-related macular degeneration (AMD). Although this novel drug has been widely used in clinic, unlike other anti-VEGF drugs, validation and consensus on its method of clinical application and clinical safety have not yet been achieved. Methods: Relevant literature was searched on PubMed, Web of Science, China National Knowledge Internet, and Wanfang Data. Stata 12.0 was used for data analysis. Random- and fixed-effect models were employed to evaluate heterogeneity. Best-corrected visual acuity (BCVA) and central retinal thickness (CRT) were utilized to measure the improvement of AMD patients. Results: In this study, we analyzed conbercept administration and compared its application with other control clinical methods for AMD treatment. Ranibizumab, triamcinolone, and traditional transpupillary thermotherapy (TTT) were administered in the control group. No differences were found in the BCVA and CRT improvement between the groups treated with conbercept and ranibizumab. However, the conbercept group had a lower serum VEGF level. After 3 months of treatment, conbercept led to a more significant BCVA and CRT improvement than triamcinolone. A more considerable BCVA improvement was observed in the group treated with conbercept than in the group treated with TTT. Moreover, even 6 months after the treatment, the effect of conbercept on CRT improvement was still more pronounced than that of TTT. Conclusion: In AMD patients, conbercept exerts considerably more positive effects on the long-term BCVA and CRT improvement than triamcinolone and TTT. The serum VEGF level in the conbercept group was lower than that in the ranibizumab group. PMID- 29343950 TI - Examining 30-day COPD readmissions through the emergency department. AB - Background: Thirty-day readmission in COPD is common and costly, but potentially preventable. The emergency department (ED) may be a setting for COPD readmission reduction efforts. Objective: To better understand COPD readmission through the ED, ascertain factors associated with 30-day readmission through the ED, and identify subgroups of patients with COPD for readmission reduction interventions. Patients and methods: A retrospective cohort study was conducted from January 2009 to September 2015 in patients with COPD of age >=18 years. Electronic health record data were abstracted for information available to admitting providers in the ED. The primary outcome was readmission through the ED within 30 days of discharge from an index admission for COPD. Logistic regression was used to examine the relationship between potential risk factors and 30-day readmission. Results: The study involved 1,574 patients who presented to the ED within 30 days on an index admission for COPD. Of these, 82.2% were readmitted through the ED. Charlson score (odds ratio [OR]: 3.6; 95% CI: 2.9-4.4), a chief complaint of breathing difficulty (OR: 1.6; 95% CI: 1.1-2.6), outpatient utilization of albuterol (OR: 4.1; 95% CI: 2.6-6.4), fluticasone/salmeterol (OR: 2.3; 95% CI: 1.3-4.2), inhaled steroids (OR: 3.8; 95% CI: 1.3-10.7), and tiotropium (OR: 1.8; 95% CI: 1.0-3.2), as well as arterial blood gas (OR: 4.4; 95% CI: 1.3-15.1) and B type natriuretic peptide (OR: 2.2; 95% CI: 1.4-3.5) testing in the ED were associated with readmission (c-statistic =0.936). Seventeen-point-eight percent of patients with COPD presented to the ED and were discharged home; 56% presented with a complaint other than breathing difficulty; and 16% of those readmitted for breathing difficulty had a length of stay <48 hours. Conclusion: Intensive outpatient monitoring, evaluation, and follow-up after discharge are needed to help prevent re-presentation to the ED, as practically all patients with COPD who represent to the ED within 30 days are readmitted to the hospital and for a variety of clinical complaints. Among those patients with COPD who present with breathing difficulty, improved decision support algorithms and alternative management strategies are needed to identify and intervene on the subgroup of patients who require <48-hour length of stay. PMID- 29343951 TI - Risk factors predict frequent hospitalization in patients with acute exacerbation of COPD. AB - Purpose: COPD is a heterogeneous disease, and the available prognostic indexes are therefore limited. This study aimed to identify the factors associated with acute exacerbation leading to hospitalization. Patients and methods: This was a retrospective study of consecutive patients with COPD (meeting the Global Initiative for Chronic Obstructive Lung Disease [GOLD] diagnostic criteria) hospitalized at the Ninth Hospital of Xi'an Affiliated Hospital of Xi'an Jiaotong University between October 2014 and September 2016. During follow-up after first hospitalization, the patients who had been rehospitalized within 1 year for acute exacerbation were grouped into the frequent exacerbation (FE) group, while the others were grouped into the infrequent exacerbation (IE) group. The baseline demographic, clinical, laboratory, pulmonary function, and imaging data were compared between the two groups. Results: Compared with the IE group, the FE group had lower forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) (P=0.005), FEV1%pred (P=0.002), maximal mid-expiratory flow (MMEF25 75%pred) (P=0.003), and ratio of carbon monoxide diffusion capacity to alveolar ventilation (DLCO/VA) (P=0.03) and higher resonant frequency (Fres; P=0.04). According to generations of bronchi, the percentage of the wall area (%WA) of lobes was found to be higher in the FE group. Emphysema index (EI), mean emphysema density (MED)whole and MEDleft lung in the FE group were significantly worse than in the IE group (P<0.05). Using logistic regression, exacerbation hospitalizations in the past year (odds ratio [OR] 14.4, 95% CI 6.1-34.0, P<0.001) and EI >10% (OR 2.9, 95% CI 1.2-7.1, P=0.02) were independently associated with frequent acute exacerbation of COPD (AECOPD) hospitalization. Conclusion: Exacerbation hospitalizations in the past year and imaging features of emphysema (EI) were independently associated with FE hospitalization. PMID- 29343952 TI - Understanding of COPD among final-year medical students. AB - Objective: Several previous studies have shown a suboptimal level of understanding of COPD among different population groups. Students in their final year of Medicine constitute a population that has yet to be explored. The evaluation of their understanding provides an opportunity to establish strategies to improve teaching processes. The objective of the present study is to determine the current level of understanding of COPD among said population. Methods: A cross-sectional observational study was done using digital surveys given to medical students in their final year at the Universidad de Sevilla. Those surveyed were asked about demographic data, smoking habits as well as the clinical manifestation, diagnosis and treatment of COPD. Results: Of the 338 students contacted, responses were collected from 211 of them (62.4%). Only 25.2% had an accurate idea about the concept of the disease. The study found that 24.0% of students were familiar with the three main symptoms of COPD. Tobacco use was not considered a main risk factor for COPD by 1.5% of students. Of those surveyed, 22.8% did not know how to spirometrically diagnose COPD. Inhaled corticosteroids were believed to be part of the main treatment for this disease among 51.0% of the students. Results show that 36.4% of respondents believed that home oxygen therapy does not help COPD patients live longer. Only 15.0% considered the Body-mass index, airflow Obstruction, Dyspnea, and Exercise (BODE) index to be an important parameter for measuring the severity of COPD. Giving up smoking was not believed to prevent worsening COPD among 3.4% of students surveyed. Almost half of students (47.1%) did not recommend that those suffering from COPD undertake exercise. Conclusion: The moderate level of understanding among the population of medical students in their final year shows some strengths and some shortcomings. Teaching intervention is required to reinforce solid knowledge among this population. PMID- 29343953 TI - Impact of acute exacerbations on platelet reactivity in chronic obstructive pulmonary disease patients. AB - Background: A higher risk of atherothrombotic cardiovascular events, which are platelet-driven processes, has been described during acute exacerbations of chronic obstructive pulmonary disease (AECOPD). However, the relevance of platelet reactivity during AECOPD and whether this is affected by antiplatelet agents are not fully elucidated to date. This study aimed to evaluate whether platelet reactivity is augmented during an exacerbation in COPD patients with and without antiplatelet therapy and its association with systemic inflammatory parameters. Materials and methods: Prospective, observational, ex vivo investigation was conducted in consecutive patients suffering an exacerbation of COPD. Platelet reactivity was assessed during AECOPD and at stable state. Platelet function assays included: 1) vasodilator-stimulated phosphoprotein assay expressed as P2Y12 reactivity index (PRI), 2) multiple electrode aggregometry and 3) optical aggregometry. Systemic inflammatory parameters such as leukocyte count, interleukin-6 and fibrinogen were also assessed. Results: Higher platelet reactivity was observed during AECOPD compared to stability measured by vasodilator-stimulated phosphoprotein (PRI: 75.2%+/-1.9% vs 68.8%+/-2.4%, p=0.001). This augmented platelet aggregability was also observed in the subset of patients on antiplatelet therapy (PRI: 72.8%+/-3.1% vs 61.7%+/-7.5%, p=0.071). Consistent findings were observed with all other platelet function tests. Patients with greater enhancement of inflammatory markers during AECOPD were more likely to present a higher increase in platelet reactivity. Conclusion: Platelet reactivity is increased during AECOPD, which may contribute to the augmented cardiovascular risk of these patients. Additionally, the increase in platelet reactivity might be associated with an increment in inflammatory markers during exacerbations. PMID- 29343954 TI - Exposure to environmental tobacco smoke from husband more strongly impacts on the airway obstruction of nonsmoking women. AB - Background: The impact of airway obstruction of nonsmoking women caused by their husband's smoking is unclear, despite the association between environmental tobacco smoke (ETS) exposure at home and obstructive pulmonary diseases among nonsmoking women. The aim of this study was to provide evidence that ETS exposure from the husband at home has a more significant influence on the airway obstruction of nonsmoking women than other housemates. Participants and methods: Nonsmoking women aged 40 years or older were recruited from the health checkup during May 2015-December 2016, Japan. They answered structured questionnaires, including ETS exposure from their husbands and other housemates (parents, siblings and dependants), and performed spirometry. We categorized the women with any history of ETS exposure from housemates into three groups (A = husband, B = others and C = both of husband and others) and defined the control group as those with no ETS exposure from housemates. Results: A total of 811 nonsmoking women completed questionnaires and spirometry. The proportion of nonsmoking women who had airway obstruction (forced expiratory volume in 1 second [FEV1]/forced vital capacity [FVC] <70%) among Group A (7.5%) was significantly higher than those in the control group (1.1%, p<0.01) and Group B (0.8%, p<0.01). The proportion of airway obstruction in Group C (6.4%) was also higher than that in the control group (p<0.05) and Group B (p<0.05). ETS exposure from husband (odds ratio [OR], 3.53; 95% confidence interval [CI], 1.48-8.42) remained strongly associated with airway obstruction after multiple logistic regression analysis, adjusting for age, housemate's smoking habits, family history and ETS exposure in childhood and at work. Conclusion: Nonsmoking women who were exposed to ETS from their husband had the lowest FEV1/FVC, and a higher proportion of them had airway obstruction when compared to nonsmoking women who experienced ETS from housemates other than their husbands. The findings suggest that tobacco control in husbands is the most important measure to prevent airway obstruction of nonsmoking women at home. PMID- 29343955 TI - Lysyl oxidase activates cancer stromal cells and promotes gastric cancer progression: quantum dot-based identification of biomarkers in cancer stromal cells. AB - Purpose: Semiconductor quantum dots (QDs) are a promising alternative to organic fluorescent dyes for multiplexed molecular imaging of cancer stroma, which have great advantages in holistically analyzing the complex interactions among cancer stromal components in situ. Patients and methods: A QD probe-based multiplexed spectral molecular imaging method was established for simultaneous imaging. Three tissue microarrays (TMAs) including 184 gastric cancer (GC) tissues were constructed for the study. Multispectral analyses were performed for quantifying stromal biomarkers, such as lysyl oxidase (LOX). The stromal status including infiltrating of immune cells (high density of macrophages), angiogenesis (high density of microvessel density [MVD], low neovessel maturation) and extracellular matrix (ECM) remodeling (low density of type IV collagen, intense expression of matrix metalloproteinase 9 [MMP-9]) was evaluated. Results: This study compared the imaging features of the QD probe-based single molecular imaging method, immunohistochemistry, and organic dye-based immunofluorescent methods, and showed the advantages of the QD probe-based multiple molecular imaging method for simultaneously visualizing complex components of cancer stroma. The risk of macrophages in high density, high MVD, low neomicrovessel maturation, MMP-9 expression and low type IV collagen was significantly increased for the expression of LOX. With the advantages of the established QD probe-based multiplexed molecular imaging method, the spatial relationship between LOX and stromal essential events could be simultaneously evaluated histologically. Stromal activation was defined and then evaluated. Survival analysis showed that the stromal activation was correlated with overall survival and disease-free survival (P<0.001 for all). The expression of LOX was significantly increased in the intense activation subgroup (P<0.001). Conclusion: Quantifying assessment of the stroma indicates that the LOX may be a stromal marker for GC and stromal activation, which is not only responsible for the ECM remodeling morphologically, but also for the formation of invasive properties and recurrence. These results support the possibility to integrate morphological and molecular biomarker information for cancer research by the biomedical application of QDs. PMID- 29343956 TI - Essential oil-loaded lipid nanoparticles for wound healing. AB - Chronic wounds and severe burns are diseases responsible for severe morbidity and even death. Wound repair is a crucial process and tissue regeneration enhancement and infection prevention are key factors to minimize pain, discomfort, and scar formation. The aim of this work was the development of lipid nanoparticles (solid lipid nanoparticles and nanostructured lipid carriers [NLC]), to be loaded with eucalyptus or rosemary essential oils and to be used, as medical devices, to enhance healing of skin wounds. Lipid nanoparticles were based on natural lipids: cocoa butter, as solid lipid, and olive oil or sesame oil, as liquid lipids. Lecithin was chosen as surfactant to stabilize nanoparticles and to prevent their aggregation. The systems were prepared by high shear homogenization followed by ultrasound application. Nanoparticles were characterized for physical-chemical properties, bioadhesion, cytocompatibility, in vitro proliferation enhancement, and wound healing properties toward normal human dermal fibroblasts. Antimicrobial activity of nanoparticles was evaluated against two reference microbial strains, one of Staphylococcus aureus, the other of Streptococcus pyogenes. Finally, the capability of nanoparticles to promote wound healing in vivo was evaluated on a rat burn model. NLC based on olive oil and loaded with eucalyptus oil showed appropriate physical-chemical properties, good bioadhesion, cytocompatibility, in vitro proliferation enhancement, and wound healing properties toward fibroblasts, associated to antimicrobial properties. Moreover, the in vivo results evidenced the capability of these NLC to enhance the healing process. Olive oil, which is characterized by a high content of oleic acid, proved to exert a synergic effect with eucalyptus oil with respect to antimicrobial activity and wound repair promotion. PMID- 29343957 TI - Codelivery of doxorubicin and MDR1-siRNA by mesoporous silica nanoparticles polymerpolyethylenimine to improve oral squamous carcinoma treatment. AB - Oral cancer is a type of head and neck cancer that is the seventh most frequent cancer and the ninth most frequent cause of death globally. About 90% of oral cancer is of squamous cell carcinoma type. Surgery and radiation with and without chemotherapy are the major treatments for oral cancer. Better advanced treatment is still needed. Multidrug resistance plays an important role in failure of oral cancer chemotherapy. In this study, we tried to fabricate a novel nanoparticle that could carry both MDR1-siRNA to block MDR1 expression and doxorubicin (DOX), a chemotherapy drug, into cancer cells in order to directly kill the cells with little or no effect of multidrug resistance. Results showed that mesoporous silica nanoparticles (MSNP) can be modified by cationic polymerpolyethylenimine (PEI) to obtain positive charges on the surface, which could enable the MSNP to carry MDR1-siRNA and DOX. The transfection efficiency assays demonstrated that the MSNP-PEI-DOX/ MDR1-siRNA was efficiently transfected into KBV cells in vitro. KBV cells transfected with MSNP-PEI-DOX/MDR1-siRNA could effectively decrease gene expression of MDR1 (~70% increase after 72 hours posttreatment) and induce the apoptosis of KBV cells (24.27% after 48 hours posttreatment) in vitro. Importantly, MSNP-PEI-DOX/MDR1-siRNA dramatically reduced the tumor size (81.64% decrease after 28 days posttreatment) and slowed down tumor growth rate compared to the control group in vivo (P<0.05). In the aggregate, newly synthesized MSNP PEI-DOX/MDR1-siRNA improves cancer chemotherapy effect in terms of treating multidrug-resistant cancer compared to DOX only, clearly demonstrating that MSNP PEI-DOX/MDR1-siRNA has potential therapeutic application for multidrug-resistant cancer in the future. PMID- 29343958 TI - Preparation of anastrozole loaded PEG-PLA nanoparticles: evaluation of apoptotic response of breast cancer cell lines. AB - Purpose: Anastrozole (ANS) is an aromatase inhibitor that is widely used as a treatment for breast cancer in postmenopausal women. Despite the wide use of ANS, it is associated with serious side effects due to uncontrolled delivery. In addition, ANS exhibits low solubility and short plasma half-life. Nanotechnology based drug delivery has the potential to enhance the efficacy of drugs and overcome undesirable side effects. In this study, we aimed to prepare novel ANS loaded PLA-PEG-PLA nanoparticles (ANS-NPs) and to compare the apoptotic response of MCF-7 cell line to both ANS and ANS-loaded NPs. Method: ANS-NPs were synthesized using double emulsion method and characterized using different methods. The apoptotic response was evaluated by assessing cell viability, morphology, and studying changes in the expression of MAPK3, MCL1, and c-MYC apoptotic genes in MCF-7 cell lines. Results: ANS was successfully encapsulated within PLA-PEG-PLA, forming monodisperse therapeutic NPs with an encapsulation efficiency of 67%, particle size of 186+/-27.13, and a polydispersity index of 0.26+/-0.11 with a sustained release profile extended over 144 hours. In addition, results for cell viability and for gene expression represent a similar apoptotic response between the free ANS and ANS-NPs. Conclusion: The synthesized ANS-NPs showed a similar therapeutic effect as the free ANS, which provides a rationale to pursue pre-clinical evaluation of ANS-NPs on animal models. PMID- 29343959 TI - Antitumor effect of a new nano-vector with miRNA-135a on malignant glioma. AB - Introduction: MiR-135a is found to selectively induce apoptosis in glioma cell but not in normal neurons and glial cells. However, low transfection efficacy limits its application in vivo as other miRNAs. We prepared a new kind of nano vector based on polyethylene glycol methyl ether (mPEG) and hyper-branched polyethylenimine (hy-PEI) in order to improve the miRNA delivery system into the glioma cells. Methods: The mPEG-g-PEI/miR-135a was constructed and detected by 1H NMR and FTIR analyses. Transmission electron microscope was utilized for its characteristics. Stability and release efficiency was assessed by electrophoresis. Biocompatibility was observed and analyzed through co-culture with astrocytes and malignant glioma cells (C6). Transfection rate was monitored by laser confocal microscopy and flow cytometry. The antitumor effect of mPEG-g PEI/miR-135a to C6 was confirmed in vivo by MR scanning, pathology and survival curve. RT-PCR was used to assay transfection efficiency of mPEG-g-PEI/miR-135a in vitro and in vivo. And Western blotting was used to assess the expressions of the targeted proteins of miR-135a. Results: In this experiment, we found the optimal N/P ratio of mPEG-g-PEI/miR-135a was about 6 judged by Zeta potential, particle size and encapsulation ability. The stability of mPEG-g-PEI/miR-135a in serum and the release efficiency in acid(pH=5.0) of mPEG-g-PEI/miR-135a were simulated the environment in vivo and in tumor. The mPEG-g-PEI nano-vector was co-cultured with malignant glioma cell C6 and normal astrocytes in vitro and showed good biocompatibility evaluated by CCK8 assay. The cell experiments in vitro indicated that mPEG-g-PEI could significantly improve miR-135a transfection by enhancing uptake effect of both normal glial and glioma cells. Given the C6 implanted in situ model, we discovered that the mPEG-g-PEI/miR-135a could obviously increase the survival period and inhibit the growth of glioma confirmed by MRI and histochemistry. In addition, the transfection efficiency of mPEG-g-PEI was better than that of other transfection agents either in vitro or in vivo confirmed by RT PCR. Moreover, the expressions of the targeted proteins of miR-135a were consistent with the in vitro results. Conclusion: These results suggest that mPEG g-PEI is expected to provide a new effective intracellular miRNA delivery system with low toxicity for glioma therapy. PMID- 29343961 TI - Receiver operating characteristic curve analysis of the Child Behavior Checklist and Teacher's Report Form for assessing autism spectrum disorder in preschool aged children. AB - Background: Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by social, behavioral, and communication impairments with an estimated prevalence of 1 in 68 school-aged children. There is a need for objective and easily applicable instruments for early identification of autistic children to enable initiation of early interventions during a very sensitive period of brain development and, consequently, optimize prognosis. Here, we tested the utility of the Child Behavior Checklist (CBCL) and the Caregiver Teacher's Report Form (C-TRF) scales for assessing ASD in Brazil, where ASD screening research is emergent. Subjects and methods: A total of 70 children (2-5 years old, both sexes) were enrolled, including an ASD group (n=39) and a non-ASD control group (n=31). The preschool versions of the CBCL and C-TRF were applied. The CBCL and C-TRF results were compared between the ASD and non-ASD control groups with Mann-Whitney U tests and receiver operating characteristic analyses. Results: The CBCL and C-TRF were found to have moderate accuracy for the dimensions withdrawn and autism spectrum problems, and to correlate with each other. Conclusion: The CBCL and C-TRF may aid in early ASD detection. PMID- 29343960 TI - Changes of serum uric acid and total bilirubin in elderly patients with major postischemic stroke depression. AB - Background: This was a longitudinal study which investigated the relationship between serum uric acid (SUA) and total bilirubin (Tbil) upon admission in elderly stroke patients and the occurrence of postischemic stroke depression (IPSD) at 3, 6, and 9 months of post-stroke follow-up. Subjects and methods: Data were analyzed for 525 acute ischemic stroke patients. Beck Depression Inventory (BDI) scores >17 and Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) were used separately to screen and diagnose IPSD at 3, 6, and 9 months post-stroke. Once IPSD was diagnosed, follow-up activities were terminated. Results: High levels of SUA (odds ratio [OR]=2.08, P<0.01) and Tbil (OR=2.31, P<0.01) in the first 3 months post-stroke and low levels of SUA (OR=2.05, P=0.03) and Tbil (OR=2.79, P<0.01) from 3 to 6 months post-stroke were identified as risk factors for major IPSD. At 3 months, patients with SUA levels >=406.5 MUmol/L (males with SUA levels of >=409.5 MUmol/L and females with SUA levels >=385.5 MUmol/L) and Tbil levels >=23.65 MUmol/L were more likely to develop major IPSD. At 6 months, both SUA (area under curve [AUC]=0.625, P=0.005, cutoff =194.0 MUmol/L) and Tbil (AUC=0.681, P=0.004, cutoff =6.75 MUmol/L) had minor diagnostic values (AUC<0.700), although SUA levels <=214.5 MUmol/L (AUC=0.756, P=0.001) in female patients had a good diagnostic value (AUC=0.722, P=0.006) for major IPSD. At 9 months, major IPSD showed no statistical relationship with either SUA (chi2=2.33, P=0.13) or Tbil (chi2=0.41, P=0.84). Conclusion: Higher levels of SUA and Tbil on admission were closely related to the occurrence of major IPSD within 3 months of stroke. Lower levels of these two biomarkers on admission were characteristic for the occurrence of major IPSD between 3 and 6 months post-stroke, while 6 months after stroke, there was no relationship between major IPSD and these two biomarkers. PMID- 29343962 TI - Functioning outcomes with adjunctive treatments for major depressive disorder: a systematic review of randomized placebo-controlled studies. AB - Objective: Patients with major depressive disorder (MDD) with inadequate response to antidepressant treatment (ADT) may suffer a prolonged loss of functioning. This review aimed to determine if self-rated functional measures are informative in randomized placebo-controlled studies of adjunctive therapy in patients with MDD and inadequate response to ADT. Methods: This was a systematic literature review of articles in any language from the MEDLINE database published between January 1990 and March 2017. Eligible studies met the following criteria: patients with MDD; inadequate response to at least one ADT; adjunctive therapy (pharmacological or otherwise) to ADT; placebo control group; randomized controlled trial or a post hoc analysis of a randomized controlled trial; reported a self-rated functioning scale. Study characteristics and functioning efficacy data were extracted. Results: A total of 2,090 discrete records were screened, 293 full-text articles were assessed for eligibility, and 26 studies were included. All studies were acute (6-12 weeks) except for one 52-week study. The only self-rated functioning scale used in the included studies was the Sheehan Disability Scale (SDS). Of the 13 adjunctive agents identified, aripiprazole, brexpiprazole, edivoxetine, and risperidone improved functioning versus placebo (p<0.05), as measured by the SDS total or mean score. On the SDS "work/studies" item, only aripiprazole had a statistically significant benefit, in one study out of four. Thus, where a benefit was observed on the SDS total or mean, this was generally driven by improvement on the "social life" and "family life" items. A limitation of the review is that it only considered published literature from one database. Conclusion: The SDS, a self-rated functional measure, is informative in acute randomized placebo-controlled studies of adjunctive therapy in patients with MDD and inadequate response to ADT. However, the item that measures work performance may be less relevant to this population than the items that measure social and family life. PMID- 29343963 TI - Physical factors that influence patients' privacy perception toward a psychiatric behavioral monitoring system: a qualitative study. AB - Background: Psychiatric patients have privacy concerns when it comes to technology intervention in the hospital setting. In this paper, we present scenarios for psychiatric behavioral monitoring systems to be placed in psychiatric wards to understand patients' perception regarding privacy. Psychiatric behavioral monitoring refers to systems that are deemed useful in measuring clinical outcomes, but little research has been done on how these systems will impact patients' privacy. Methods: We conducted a case study in one teaching hospital in Malaysia. We investigated the physical factors that influence patients' perceived privacy with respect to a psychiatric monitoring system. The eight physical factors identified from the information system development privacy model, a comprehensive model for designing a privacy sensitive information system, were adapted in this research. Scenario-based interviews were conducted with 25 patients in a psychiatric ward for 3 months. Results: Psychiatric patients were able to share how physical factors influence their perception of privacy. Results show how patients responded to each of these dimensions in the context of a psychiatric behavioral monitoring system. Conclusion: Some subfactors under physical privacy are modified to reflect the data obtained in the interviews. We were able to capture the different physical factors that influence patient privacy. PMID- 29343964 TI - Achalasia following reflux disease: coincidence, consequence, or accommodation? An experience-based literature review. AB - Achalasia is a motility disorder of the esophagus characterized by the defective peristaltic activity of the esophageal body and impaired relaxation of the lower esophageal sphincter due to the degeneration of the inhibitory neurons in the myenteric plexus of the esophageal wall. The histopathological and pathophysiological changes in achalasia have been well described. However, the exact etiological factors leading to the disease still remain unclear. Currently, achalasia is believed to be a multifactorial disease, involving both extrinsic and intrinsic factors. Based on our experience and the review of literature, we believe that gastroesophageal reflux disease (GERD) might be one of the triggering factors leading to the development of achalasia. However, it is also stated that the two diseases can simultaneously appear independently from each other. Considering the large number and routine treatment of patients with GERD and achalasia, the rare combination of the two may even remain unnoticed; thus, the analysis of larger patient groups with this entity is not feasible. In this context, we report four cases where long-standing reflux symptoms preceded the development of achalasia. A literature review of the available data is also given. We hypothesize that achalasia following the chronic acid exposure of the esophagus is not accidental but either a consequence of a chronic inflammation or a protective reaction of the organism in order to prevent aspiration and lessen reflux-related symptoms. This hypothesis awaits further clinical confirmation. PMID- 29343966 TI - Prevalence of antigliadin IgA antibodies in psoriasis vulgaris and response of seropositive patients to a gluten-free diet. AB - Introduction: The course of psoriasis relies on a variety of metabolic and immunological parameters. Identification of underlying pro-inflammatory conditions and their control is desired for optimal management. Background: Increased prevalence of serum markers for celiac disease has been reported among patients with psoriasis. The likelihood of occult celiac disease in a subpopulation of patients has been postulated and gluten-free diets have been reported to be effective. Patients and methods: The prevalence of gliadin IgA antibodies was assessed among patients with psoriasis in an urban population. The clinical effects of a strict gluten-free diet were followed. Results: Over a 2 year period, 97 patients with Psoriasis Area and Severity Index greater than 2.4 were recruited from a population followed in a dermatology clinic. Gliadin IgA antibodies were assessed in all participants and in 91 controls. Elevated gliadin IgA antibodies were found in 13 patients (14%) and two controls (2%). Values in five patients were assessed as greater than 30.0 U/mL or "strong positive" according to the manufacturer of the assay. All 13 patients were placed on a strict gluten-free diet without any other modifications in their ongoing treatment of psoriasis. Improvement of psoriatic lesions was observed in all patients with positive gliadin IgA antibodies but the decline in the Psoriasis Area and Severity Index score and the scaling down of pharmaceutical treatment was more pronounced in the five patients with strong positive gliadin IgA indicating an immune aberration amenable to diet changes. Conclusion: Prevalence of antigliadin IgA antibody is significant among patients with psoriasis not diagnosed with celiac disease or non-celiac gluten sensitivity. For all its limitations, antigliadin IgA testing can identify patients likely to benefit from gluten-free diets. PMID- 29343965 TI - Postural tachycardia syndrome: current perspectives. AB - Postural tachycardia syndrome (POTS) is the combination of an exaggerated heart rate response to standing, in association with symptoms of lightheadedness or pre syncope that improve when recumbent. The condition is often associated with fatigue and brain fog, resulting in significant disruptions at a critical time of diagnosis in adolescence and young adulthood. The heterogeneity of the underlying pathophysiology and the variable response to therapeutic interventions make management of this condition challenging for both patients and physicians alike. Here, we aim to review the factors and mechanisms that may contribute to the symptoms and signs of POTS and to present our perspectives on the clinical approach toward the diagnosis and management of this complex syndrome. PMID- 29343968 TI - SUN1 silencing inhibits cell growth through G0/G1 phase arrest in lung adenocarcinoma [Retraction]. AB - [This retracts the article on p. 2825 in vol. 10, PMID: 28652764.]. PMID- 29343967 TI - Indoleamine 2,3-Dioxygenase Activity Increases NAD+ Production in IFN-gamma Stimulated Human Primary Mononuclear Cells. AB - IFN-gamma activation of mononuclear phagocytes significantly increases indoleamine 2,3-dioxygenase (IDO) and flux through the kynurenine pathway (KP). However, the effect of IDO on NAD+ synthesis, the end product of KP metabolism, is unknown. To investigate this, primary human peripheral blood mononuclear cells were cultured up to 10 days and activated with IFN-gamma in the presence or absence of a poly(ADP-ribose) polymerase (PARP) inhibitor. Day 10 macrophages had significantly higher NAD+ levels compared with monocytes. IFN-gamma activation of macrophages resulted in the highest induction of IDO but decreased intracellular NAD+ concentrations at both 24 and 48 hours. However, IFN-gamma activation of both day 6 and day 10 macrophages in the presence of a PARP inhibitor resulted in significantly higher intracellular NAD+ levels at 24 hours. This study provides evidence for the first time that an immune-mediated increase in IDO activity increases NAD+ biosynthesis concomitantly with an increase in NAD+ catabolism in primary human macrophages. PMID- 29343969 TI - The putative tumor suppressor, miR-199a, regulated by Snail, modulates clear cell renal cell carcinoma aggressiveness by repressing ROCK1. AB - Background: Aberrant expression of miR-199a has been frequently reported in cancer studies; however, its role in renal cell carcinoma (RCC) has not been examined in detail. Results: Here, we showed that miR-199a was downregulated in RCC and associated with poor prognostic phenotype. Using luciferase and western blot assays we identified that Rho-associated coiled coil-containing protein kinases 1 (ROCK1) was a direct target gene for miR-199a. miR-199a regulated proliferation, invasion, and apoptosis of clear cell renal cell carcinoma (ccRCC) cells by modulating ROCK1 expression. Interestingly, we also found that miR-199a was modulated by snail in ccRCC cells. Snail elevated ROCK1 expression by repressing miR-199a activity. Conclusion: Altogether, our results identify a crucial tumor suppressive role of miR-199a in the progression of ccRCC and suggest that miR-199a might be an anticancer therapeutic target for ccRCC patients. PMID- 29343970 TI - A retrospective examination of the US Food and Drug Administration's clinical pharmacology reviews of oncology biologics for potential use of therapeutic drug monitoring. AB - Background: Biologics have gained traction for use in oncology, but have demonstrate clinical variability for efficacy and safety. Therapeutic drug monitoring (TDM) can benefit patients' outcomes from a biologic therapy when the latter has a defined therapeutic window. A clinically relevant therapeutic window may exist for biologics with established exposure-response (E-R) relationships for efficacy and/or safety and a documented maximum tolerated dose (MTD). Additionally, the inter-individual variability (IIV) on the clearance (CL) parameter could determine risks for patients falling outside the proposed therapeutic window. Materials and methods: The US Food and Drug Administration (FDA)-approved oncology biologics between 2005-2016 were reviewed via FDA "Purple Book" (FDA-repository for licensed biologics). Data were extracted from biologics' pharmacokinetic models available on the clinical pharmacology reviews published on the FDA-Approved Drug Products website. Evaluated features for biologics with established E-R relationships for efficacy and/or safety and MTD include an IIV for the CL and various other covariates including demographic factors, disease factors, blood chemistry, or immunogenicity. Results: Five therapies were identified with documented E-R relationships for both efficacy and safety including, Yervoy(r)(ipilimumab), Zaltrap(r) (ziv-aflibercept), Portrazza(r) (necitumumab), Adcetris(r) (brentuximab-vedotin), and Blincyto(r) (blinatumomab). The corresponding IIV on CL were: 34%, 33%, 29%, 47%, and 97%, respectively. Among the five therapies, only three had defined MTD including, brentuximab-vedotin, necitumumab, and blinatumomab. Conclusion: Of the medications examined, blinatumomab was identified as the anticancer drug with the most available information for the establishment of TDM, and hence, may benefit through the use of TDM to optimize effectiveness and minimize patients' toxicity. The approach used here may provide a generalizable framework to retrospectively identify anticancer biologics with high IIV that may benefit from TDM to improve patients' clinical outcome. PMID- 29343971 TI - Assessment of the cardiac safety between cetuximab and panitumumab as single therapy in Chinese chemotherapy-refractory mCRC. AB - Objective: The cardiac safety of cetuximab and panitumumab, particularly as single agents, has not been investigated extensively. This trial was designed to specifically evaluate the cardiac safety of cetuximab and panitumumab as single therapy in Chinese chemotherapy-refractory metastatic colorectal cancer (mCRC) patients. Patients and methods: Sixty-one patients received cetuximab at an initial dose of 400 mg/m2 intravenously over 120 minutes on day 1 (week 1), followed by a maintenance dose of 250 mg/m2 intravenously over 60 minutes on day 1 of each 7-day cycle. Forty-three patients received panitumumab at a dose of 6 mg/kg intravenously every 14 days. Routine laboratory tests and electrocardiogram (ECG) were performed at baseline, during therapy and after the treatment (4th and 10th months). The incidence of elevation of troponin I ultra (TNI Ultra), abnormal ECGs, cardiac events and noncardiac adverse events (AEs) were recorded and analyzed. Results: The incidence of elevation of TNI Ultra between the two groups had no significance (p=0.681), and TNI Ultra+ was observed more frequently in patients with metastases to more than three organs and they received fourth or above lines of chemotherapy. The most frequent abnormal ECG manifestations were nonspecific ST changes and QTc prolongation in the two groups. At 10 months after treatment, most of the abnormal ECG manifestations were reversed. The most common cardiac AEs of cetuximab and panitumumab included palpitations, dyspnea, chest pain and arrhythmias requiring treatment. Most of the events were mild and transient. The incidence of cardiac AEs had no significant difference between the two groups. Rash was still the most common noncardiac AE in both groups. Conclusion: Cetuximab and panitumumab showed favorable cardiac safety as single agents for Chinese chemotherapy-refractory mCRC patients. But monitoring for cardiac AEs is still necessary throughout the entire treatment process. PMID- 29343973 TI - A patient with classic biphasic pulmonary blastoma harboring CD74-ROS1 fusion responds to crizotinib. AB - Pulmonary blastoma (PB) is a rare aggressive lung malignancy with a poor prognosis. Surgical resection is the treatment of choice for localized disease, and there are no standard treatment guidelines for metastatic PB. Due to its rareness, its molecular profile has not been elucidated. We present the first case of classic biphasic pulmonary blastoma (CBPB) with CD74-ROS1 rearrangement in a 44-year-old Asian female with stage IV disease diagnosed using capture-based ultra-deep targeted sequencing. It has been reported that ROS1 rearranged lung adenocarcinoma and squamous cell carcinoma are sensitive to crizotinib, an ALK/MET/ ROS1 multitargeted tyrosine kinase inhibitor. However, its efficacy has not been reported in CBPB patients harboring ROS1 rearrangement. This CBPB patient was given crizotinib and she achieved partial response after 1 month of treatment. We report the first clinical evidence of efficacy shown by crizotinib for targeting CD74-ROS1 fusion in CBPB. PMID- 29343972 TI - Targeting histone methyltransferase and demethylase in acute myeloid leukemia therapy. AB - Acute myeloid leukemia (AML) is a clonal disorder of myeloid progenitors characterized by the acquisition of chromosomal abnormalities, somatic mutations, and epigenetic changes that determine a consistent degree of biological and clinical heterogeneity. Advances in genomic technologies have increasingly shown the complexity and heterogeneity of genetic and epigenetic alterations in AML. Among the genetic alterations occurring in AML, frequent are the genetic alterations at the level of various genes involved in the epigenetic control of the DNA methylome and histone methylome. In fact, genes involved in DNA demethylation (such as DNMT3A, TET2, IDH1, and IDH2) or histone methylation and demethylation (EZH2, MLL, DOT1L) are frequently mutated in primary and secondary AML. Furthermore, some histone demethylases, such as LSD1, are frequently overexpressed in AML. These observations have strongly supported a major role of dysregulated epigenetic regulatory processes in leukemia onset and development. This conclusion was further supported by the observation that mutations in genes encoding epigenetic modifiers, such as DMT3A, ASXL1, TET2, IDH1, and IDH2, are usually acquired early and are present in the founding leukemic clone. These observations have contributed to development of the idea that targeting epigenetic abnormalities could represent a potentially promising strategy for the development of innovative treatments of AML. In this review, we analyze those proteins and their inhibitors that have already reached the first stages of clinical trials in AML, namely the histone methyltransferase DOT1L, the demethylase LSD1, and the MLL-interacting protein menin. PMID- 29343974 TI - Identification of key pathways and genes in TP53 mutation acute myeloid leukemia: evidence from bioinformatics analysis. AB - Background: Tumor protein p53 (TP53) mutations are not only a risk factor in acute myeloid leukemia (AML) but also a potential biomarker for individualized treatment options. This study aimed to investigate potential pathways and genes associated with TP53 mutations in adult de novo AML. Methods: An RNA sequencing dataset of adult de novo AML was downloaded from The Cancer Genome Atlas database. Differentially expressed genes (DEGs) were identified by edgeR of the R platform. Key pathways and genes were identified using the following bioinformatics tools: gene set enrichment analysis (GSEA), gene ontology (GO), the Kyoto Encyclopedia of Genes and Genomes (KEGG), Search Tool for the Retrieval of Interacting Genes/Proteins, and Molecular Complex Detection. Results: GSEA suggested that TP53 mutations were significantly associated with cell differentiation, proliferation, cell adhesion biological processes, and MAPK pathway. In total, 1,287 genes were identified as DEGs. GO and KEGG analysis suggested that upregulation of DEGs was significantly enriched in categories associated with cell adhesion biological processes, Ras-associated protein 1, PI3K-Akt pathway, and cell adhesion molecules. The top ten genes ranked by degree, CDH1, BMP2, KDR, LEP, CASR, ITGA2B, APOE, MNX1, NMU, and TRH, were identified as hub genes from the protein-protein interaction network. Survival analysis suggested that patients with TP53 mutations had a significantly increased risk of death, while the mRNA expression level in patients with TP53 mutation was similar to those carrying TP53 wild type. Conclusion: Our findings have indicated that multiple genes and pathways may play a crucial role in TP53 mutation AML, offering candidate targets and strategies for TP53 mutation AML individualized treatment. PMID- 29343975 TI - Spotlight on midostaurin in the treatment of FLT3-mutated acute myeloid leukemia and systemic mastocytosis: design, development, and potential place in therapy. AB - The Fms-like tyrosine kinase-3 (FLT3; fetal liver kinase-2; human stem cell tyrosine kinase-1; CD135) is a class III receptor tyrosine kinase that is normally involved in regulating the proliferation, differentiation, and survival of both hematopoietic cells and dendritic cells. Mutations leading it to be constitutively activated make it an oncogenic driver in ~30% of acute myeloid leukemia (AML) patients where it is associated with poor prognosis. The prevalence of oncogenic FLT3 and the dependency on its constitutively activated kinase activity for leukemia growth make this protein an attractive target for therapeutic intervention. Of the numerous small molecule inhibitors under clinical investigation for the treatment of oncogenic FLT3-positive AML, the N benzoyl-staurosporine, midostaurin (CGP41251; PKC412; Rydapt(r); Novartis Pharma AG, Basel, Switzerland), is the first to be approved by the US Food and Drug Administration for the treatment, in combination with standard chemotherapy, of newly diagnosed adult AML patients who harbor mutations in FLT3. Here, we describe the early design of midostaurin, the preclinical discovery of its activity against oncogenic FLT3, and its subsequent clinical development as a therapeutic agent for FLT3 mutant-positive AML. PMID- 29343976 TI - Epidemiology, associated burden, and current clinical practice for the diagnosis and management of Alzheimer's disease in Japan. AB - The burden of dementia in Japan is large and growing. With the world's fastest aging population, it is estimated that one in five elderly people will be living with dementia in Japan by 2025. The most common form of dementia is Alzheimer's disease (AD), accounting for around two-thirds of dementia cases. A systematic review was conducted to examine the epidemiology and associated burden of AD in Japan and to identify how AD is diagnosed and managed in Japan. English and Japanese language databases were searched for articles published between January 2000 and November 2015. Relevant Japanese sources, clinical practice guideline registers, and reference lists were also searched. Systematic reviews and cohort and case-control studies were eligible for inclusion, with a total of 60 studies included. The most recent national survey conducted in six regions of Japan reported the mean prevalence of dementia in people aged >=65 years to be 15.75% (95% CI: 12.4, 22.2%), which is much higher than the previous estimated rate of 10% in 2010. AD was confirmed as the predominant type of dementia, accounting for 65.8% of all cases. Advancing age and low education were the most consistently reported risk factors for AD dementia. Japanese guidelines for the management of dementia were released in 2010 providing specific guidance for AD about clinical signs, image findings, biochemical markers, and treatment approaches. Pharmacotherapies and non-pharmacotherapies to relieve cognitive symptoms were introduced, as were recommendations to achieve better patient care. No studies reporting treatment patterns were identified. Due to population aging and growing awareness of AD in Japan, health care expenditure and associated burden are expected to soar. This review highlights the importance of early detection, diagnosis, and treatment of AD as strategies to minimize the impact of AD on society in Japan. PMID- 29343977 TI - Cost-effectiveness analysis of six therapies for the treatment of lower urinary tract symptoms due to benign prostatic hyperplasia. AB - Objective: To conduct a cost-effectiveness analysis from payers' perspectives of six treatments for lower urinary tract symptoms (LUTS) associated with benign prostatic hyperplasia (BPH) and to examine positioning of these modalities in the marketplace for the best use of health care funds and quality-of-life benefits for patients. Methods: The economic analysis was conducted with a Markov model to compare combination prescription drug therapy (ComboRx), minimally invasive therapies (MITs) including convective radiofrequency (RF) water vapor thermal therapy (Rezum(r)), conductive RF thermal therapy (Prostiva(r)), and prostatic urethral lift (UroLift(r)), and invasive surgical procedures including photovaporization of the prostate (Greenlight(r) PVP) and transurethral resection of the prostate (TURP). Effects assessed with International Prostate Symptom Score, adverse events, and re-treatment rates were estimated from medical literature; treatments effects were modeled using a common baseline score. Starting with each therapy, patients' transitions to more intensive therapies when symptoms returned were simulated in 6-month cycles over 2 years. Incremental cost-effectiveness ratios (ICERs) were calculated for pairs of treatments; uncertainty in ICERs was estimated with probabilistic sensitivity analyses. Results: ComboRx was least effective and provided one-third of the symptom relief achieved with MITs. UroLift was similar in effectiveness to Prostiva and Rezum but costs more than twice as much. The cheaper MITs were ~$900 more expensive than the cost of ComboRx generic drugs over 2 years. TURP and PVP provided slightly greater relief of LUTS than MITs at approximately twice the cost over 2 years; typically, they are reserved for treatment of more severe LUTS. Conclusion: The analysis evaluated the costs and symptom relief of six treatment options in the continuum of care from a common baseline of LUTS severity. Identification of treatments for LUTS/BPH that demonstrate cost-effectiveness and provide appreciable symptom relief is paramount as reimbursement for patient care moves from volume-based services to value-based services. PMID- 29343978 TI - Parietal scalp is another affected area in female pattern hair loss: an analysis of hair density and hair diameter. AB - Purpose: Female pattern hair loss (FPHL) is a common hair disease. However, studies of the quantitative measurement of FPHL are still limited. The aim of this study was to investigate the characteristics of hair density and hair diameter in normal women and FPHL patients, and further correlate the quantitative measurement with the clinical presentation of FPHL. Patients and methods: An evaluation of 471 FPHL patients and 236 normal women was carried out according to the Ludwig classification, and analysis was performed by using a com puterized handheld USB camera with computer-assisted software. Various areas of the scalp, including frontal, parietal, midscalp, and occipital, were analyzed for hair density, non-vellus hair diameter, and percentage of miniaturized hair. Results: The hair density in normal women was the highest and the lowest in the midscalp and parietal areas, respectively. The FPHL group revealed the lowest hair density in the parietal area. Significant differences in hair density, non vellus hair diameter, and percentage of miniaturized hair between the normal and FPHL groups were observed, especially in the midscalp and parietal areas. Conclusion: The parietal area is another important affected area in FPHL in addition to the midscalp area. This finding provides novel important information of FPHL and will be useful for hair transplant surgeons choosing the optimal donor sites for hair transplantation in women. PMID- 29343979 TI - The influence of CYP3A5 polymorphisms on haloperidol treatment in patients with alcohol addiction. AB - Background: Isoenzymes CYP2D6 and CYP3A4, the activity of which varies widely, are involved in metabolism of haloperidol and may influence its profile of efficacy and safety. Objective: The primary aim of this study was to estimate the relationship between CYP3A5 gene polymorphism, activity of the CYP3A isoenzyme, and the risk of development of adverse drug reactions by haloperidol in patients with alcohol abuse. Methods: Sixty-six male alcohol-addicted patients participated in the study. The safety of haloperidol was evaluated by Udvalg for Kliniske Undersogelser Side Effect Rating Scale (UKU) and Simpson-Angus Scale for extrapyramidal symptoms (SAS). The activity of CYP3A was evaluated by determining the concentrations of an endogenous substrate of this isoenzyme (cortisol) and its urinary metabolite (6-beta-hydroxycortisol, 6-B-HC). Genotyping of CYP3A5*3 was performed by real-time polymerase chain reaction with allele-specific hybridization. Results: The frequency of A-allele occurrence in Russian population was very poor (2.27%). CYP3A5*3 polymorphism had no influence on safety profile indicators of haloperidol (UKU scale: p=0.55, SAS scale: p=0.64). In addition, there was no statistical significant difference between the values of indexes of the metabolic ratio (6-B-HC/cortisol) in groups with different genotypes of CYP3A5*3: GG 5.00 (3.36; 6.39) vs AG 5.26 (2.10; 6.78) (p=0.902). Conclusion: The frequency of A-allele occurrence of CYP3A5*3 in Russian population is very poor, and it has no high influence on the safety of haloperidol treatment; therefore, there are no reasons to take this polymorphism into account in patients with alcohol addiction who receive haloperidol. PMID- 29343980 TI - Peripheral and spinal TRPA1 channels contribute to formalin-induced long-lasting mechanical hypersensitivity. AB - Background: Transient receptor potential ankyrin 1 (TRPA1) is a non-selective cation channel expressed by a subset of nociceptive neurons that acts as a multimodal receptor. Its activity contributes to modulate nociceptive transmission in acute inflammatory pain. However, the role of this channel in chronic pain has been less studied. The purpose of this study was to investigate the local peripheral and spinal participation of TRPA1 channels in formalin induced long-lasting hypersensitivity. Materials and methods: Formalin (1%) induced chronic hypersensitivity was determined by the application of von Frey filaments to ipsilateral and contralateral paws and through pharmacological testing using a selective TRPA1 blocker (A-967079). TRPA1 expression in the dorsal root ganglion (DRG) and spinal cord was analyzed by Western blotting. Results: Formalin (1%) injection produced acute flinching behavior (1 h) as well as secondary allodynia and hyperalgesia (12 days). Local peripheral pretreatment (10 min before) or posttreatment (6 days later) with A-967079 (1-100 uM) partially prevented and reversed, respectively, in a dose-dependent manner, long lasting secondary mechanical allodynia and hyperalgesia evoked by 1% formalin. Likewise, intrathecal pretreatment or posttreatment with A-967079 partially prevented and reversed, respectively, formalin-induced long-lasting hypersensitivity. A-967079 (100 uM) completely abolished the pro-nociceptive effect of formalin (adjusted to pH 7.4). Finally, formalin injection increased TRPA1 protein expression in the DRG and spinal cord. Conclusion: Results indicate that TRPA1 expressed in the DRG and spinal cord plays a relevant role in formalin induced long-lasting secondary nociceptive hypersensitivity. PMID- 29343981 TI - Assessment of pain score and specimen adequacy for ultrasound-guided fine-needle aspiration biopsy of thyroid nodules. AB - Objective: The aim of this study was to evaluate pain scores and specimen adequacy for ultrasound-guided fine-needle aspiration biopsy (US-FNAB) of thyroid nodules without and with local anesthesia (LA). Materials and methods: The US FNAB procedure was performed on 183 patients with and without LA. One puncture was made for solid nodules, and if patients could tolerate it, a two-puncture technique was used for nodules with a cystic change. Four-point verbal rating scores were assessed by a nursing assistant after completion of US-FNAB. To be an adequate specimen, at least six groups of follicular cells are required, and each group should contain at least 10 cells. Results: Immediately after US-FNAB, 92% of patients with LA and 80% without LA reported no or mild pain (p=0.01). Most patients tolerated the procedure well, with no pain (82.5%) reported 5 minutes after the procedure. In univariate logistic regression, irregular boundary (odds ratio [OR]: 2.52, 95% confidence interval [CI]: 1.04-6.06, p=0.04), calcification (OR: 2.86, 95% CI: 1.06-7.76, p=0.04), and LA (OR: 0.35, 95% CI: 0.15-0.86, p=0.02) were significantly associated with immediate moderate or severe pain. Specimen adequacy was significantly associated with age (OR: 0.95, 95% CI: 0.92 0.97, p<0.01), heterogeneous echo-texture (OR: 1.76, 95% CI: 1.23-5.17, p=0.01), predominate solid architecture (OR: 2.78, 95% CI: 1.42-5.41, p<0.01), and the use of LA (OR: 3.34, 95% CI: 1.70-6.56, p<0.01). In multivariate logistic regression, patients receiving LA had lower risk of moderate or severe pain (OR: 0.25, 95% CI: 0.09-0.67, p=0.01) and higher chances of specimen adequacy (OR: 4.84, 95% CI: 2.17-10.7, p<0.01) compared to patients who did not receive LA. Conclusion: US FNAB is a safe procedure, and most patients report no pain 5 minutes after the procedure. The use of LA was associated with lower immediate pain scales and higher specimen adequacy. PMID- 29343983 TI - Does transcutaneous electrical nerve stimulation reduce pain and improve quality of life in patients with idiopathic chronic orchialgia? A randomized controlled trial. AB - Background: Chronic orchialgia is defined as testicular pain, which may be either unilateral or bilateral, lasting for more than 3 months. It disturbs a patient's daily activities and quality of life (QoL), inciting the patient to search for treatments to alleviate the pain. It is estimated that 25% of chronic orchialgia cases are idiopathic. Purpose: The purpose of this study was to investigate how effective transcutaneous electrical nerve stimulation (TENS) is in pain reduction and how it consequently affects the QoL in patients with idiopathic chronic orchialgia (ICO). Patients and methods: Seventy-one patients were randomly assigned to group A (study group), which included 36 patients who received TENS and analgesia, and group B (control group), which included 35 patients who received analgesia only. The outcome measures were the participants' demographic data and results of the visual analog scale (VAS) and QoL questionnaire. These outcomes were measured before and after 4 weeks of treatment and at 2-month follow-up. Results: The results showed that compared to pretreatment, there was a significant reduction in pain postintervention and at 2-month follow-up in group A (P<0.0001 and <0.001, respectively; F=7.1) as well as a significant improvement in QoL at these time points (P<0.0001 and <0.0001, respectively). There were no significant differences in the VAS score and QoL in group B at different time points of evaluation. Conclusion: The findings indicate that TENS is effective in reducing pain and improving patients' QoL in cases of ICO. TENS is an easy-to use, effective, noninvasive, and simple method for ICO-associated pain control and QoL improvement. PMID- 29343982 TI - Increased theta band EEG power in sickle cell disease patients. AB - Objective: Pain is a major issue in the care of patients with sickle cell disease (SCD). The mechanisms behind pain and the best way to treat it are not well understood. We studied how electroencephalography (EEG) is altered in SCD patients. Methods: We recruited 20 SCD patients and compared their resting state EEG to that of 14 healthy controls. EEG power was found across frequency bands using Welch's method. Electrophysiological source imaging was assessed for each frequency band using the eLORETA algorithm. Results: SCD patients had increased theta power and decreased beta2 power compared to controls. Source localization revealed that areas of greater theta band activity were in areas related to pain processing. Imaging parameters were significantly correlated to emergency department visits, which indicate disease severity and chronic pain intensity. Conclusion: The present results support the pain mechanism referred to as thalamocortical dysrhythmia. This mechanism causes increased theta power in patients. Significance: Our findings show that EEG can be used to quantitatively evaluate differences between controls and SCD patients. Our results show the potential of EEG to differentiate between different levels of pain in an unbiased setting, where specific frequency bands could be used as biomarkers for chronic pain. PMID- 29343984 TI - Appropriateness of sham or placebo acupuncture for randomized controlled trials of acupuncture for nonspecific low back pain: a systematic review and meta analysis. AB - Objectives: To establish whether sham acupuncture (SA) or placebo acupuncture (PA) is more efficacious for reducing low back pain (LBP) than other routine treatments and to discuss whether SA or PA is appropriate for randomized controlled trials of acupuncture for LBP. Methods: Six databases were searched on 31 May 2017. We included only randomized controlled trials of adults with LBP and lower back myofascial pain syndrome. The studies had at least two control arms: a sham-controlled acupuncture arm and a routine care or waiting list arm (people who did not receive acupuncture until the end of treatment). Trials were combined using meta-analysis methods when the data allowed statistical pooling. Pooled effect sizes were calculated by random effects models. Results: This review identified 7 trials (1768 participants); all were included in the meta-analysis. We found statistically significant differences in pain reduction post intervention between SA or PA and routine care or a waiting list, with a standardized mean difference of -0.36 (95% CI -0.54 to -0.18; I2 statistic=16%; participants=624; studies=6) for the Visual Analog Scale and -0.35 (95% CI -0.49 to -0.20; I2 statistic=0%; participants=736; studies=1) for the Chronic Pain Grade Scale; however, no significant difference was observed between SA or PA and routine care or no treatment for post-intervention function. Conclusion: Compared with routine care or a waiting list, SA or PA was more efficacious for pain relief post-intervention. Concluding that SA or PA is appropriate for acupuncture research would be premature. Guidelines evaluating SA or PA control methods are needed to determine the specific effect of acupuncture over placebo. PMID- 29343985 TI - Bioactive chromone constituents from Vitex negundo alleviate pain and inflammation. AB - Background: Vitex negundo L. has been widely studied for its beneficial effect in inflammatory and pain conditions. The present study describes the isolation of two new bioactive chromone constituents from V. negundo and their in vivo evaluation for anti-inflammatory and antinociceptive activities. Methods: Two new chromone derivatives, namely, methyl 3-(2-(5-hydroxy-6-methoxy-4-oxo-4H-chromen-2 yl)ethyl)benzoate (1) and 3-(1-hydroxy-2-(5-hydroxy-6-methoxy-4-oxo-4H-chromen-2 yl)ethyl)benzoic acid (2) were isolated from V. negundo and their structures were determined through various spectroscopic techniques including mass spectrometry, UV, IR, 1H NMR, 13C NMR, and two-dimensional-NMR like correlation spectroscopy and heteronuclear multiple bond correlation techniques. The isolated compounds (1 2) were tested for their prospective antinociceptive activity in acetic acid induced abdominal constriction assay and anti-inflammatory activity in the carrageenan-induced paw edema assay in mice. Results: Significant attenuation (P<0.001) of tonic visceral nociception was demonstrated by compound 1 and 2 at doses of 50 and 100 mg/kg. At similar doses, these compounds (1-2) also showed potent amelioration (P<0.001) of carrageenan-induced paw swelling. Conclusion: The isolated chromone derivatives (1-2) from V. negundo are able to alleviate nociception and inflammation and the findings corroborated that V. negundo may be used as a potential source of antinociceptive and anti-inflammatory candidates. PMID- 29343986 TI - Radiotherapy for esophageal carcinoma: dose, response and survival. AB - Esophageal cancer (EC) is an extremely aggressive, lethal malignancy that is increasing in incidence worldwide. At present, definitive chemoradiotherapy is accepted as the standard treatment for locally advanced EC. The EC guidelines recommend a radiation dose of 50.4 Gy for definitive treatment, yet the outcomes for patients who have received standard-dose radiotherapy remain unsatisfactory. However, some studies indicate that a higher radiation dose could improve local tumor control, and may also confer survival benefits. Some studies, however, suggest that high-dose radiotherapy does not bring survival benefit. The available data show that most failures occurred in the gross target volume (especially in the primary tumor) after definitive chemoradiation. Based on those studies, we hypothesize that at least for some patients, more intense local therapy may lead to better local control and survival. The aim of this review is to evaluate the radiation dose, fractionation strategies, and predictive factors of response to therapy in functional imaging for definitive chemoradiotherapy in esophageal carcinoma, with an emphasis on seeking the predictive model of response to CRT and trying to individualize the radiation dose for EC patients. PMID- 29343987 TI - Performance of the LACE index to predict 30-day hospital readmissions in patients with chronic obstructive pulmonary disease. AB - Background and objective: Patients hospitalized for acute exacerbation of chronic obstructive pulmonary disease (COPD) have a high 30-day hospital readmission rate, which has a large impact on the health care system and patients' quality of life. The use of a prediction model to quantify a patient's risk of readmission may assist in directing interventions to patients who will benefit most. The objective of this study was to calculate the rate of 30-day readmissions and evaluate the accuracy of the LACE index (length of stay, acuity of admission, co morbidities, and emergency department visits within the last 6 months) for 30-day readmissions in a general hospital population of COPD patients. Methods: All patients admitted with a principal diagnosis of COPD to Liverpool Hospital, a tertiary hospital in Sydney, Australia, between 2006 and 2016 were included in the study. A LACE index score was calculated for each patient and assessed using receiver operator characteristic curves. Results: During the study period, 2,662 patients had 5,979 hospitalizations for COPD. Four percent of patients died in hospital and 25% were readmitted within 30 days; 56% of all 30-day readmissions were again due to COPD. The most common reasons for readmission, following COPD, were heart failure, pneumonia, and chest pain. The LACE index had moderate discriminative ability to predict 30-day readmission (C-statistic =0.63). Conclusion: The 30-day hospital readmission rate was 25% following hospitalization for COPD in an Australian tertiary hospital and as such comparable to international published rates. The LACE index only had moderate discriminative ability to predict 30-day readmission in patients hospitalized for COPD. PMID- 29343988 TI - Does breast density measured through population-based screening independently increase breast cancer risk in Asian females? AB - Purpose: The purpose of this study was to investigate the effects of breast density on breast cancer risk among women screened via a nationwide mammographic screening program. Patients and methods: We conducted a nested case-control study for a randomly selected population of 1,561 breast cancer patients and 6,002 matched controls from the National Cancer Screening Program. Breast density was measured and recorded by two independent radiologists using the Breast Imaging Reporting and Data System (BI-RADS). Associations between BI-RADS density and breast cancer risk were evaluated according to screening results, time elapsed since receiving non-recall results, age, and menopausal status after adjusting for possible covariates. Results: Breast cancer risk for women with extremely dense breasts was five times higher (adjusted odds ratio [aOR] =5.0; 95% confidence interval [CI]) =3.7-6.7) than that for women with an almost entirely fatty breast, although the risk differed between recalled women (aOR =3.3, 95% CI =2.3-3.6) and women with non-recalled results (aOR =12.1, 95% CI =6.3-23.3, P heterogeneity =0.001). aORs for BI-RADS categories of breast density were similar when subjects who developed cancer after showing non-recall findings during initial screening were grouped according to time until cancer diagnosis thereafter (<1 and >=1 year). The prevalence of dense breasts was higher in younger women, and the association between a denser breast and breast cancer was stronger in younger women (heterogeneously dense breast: aOR =7.0, 95% CI =2.4 20.3, women in their 40s) than older women (aOR =2.5, 95% CI =1.1-6.0, women in their 70s or more). In addition, while the positive association remained, irrespective of menopausal status, the effect of a dense breast on breast cancer risk was stronger in premenopausal women. Conclusion: This study confirmed an increased risk of breast cancer with greater breast density in Korean women which was consistent regardless of BI-RADS assessment category, time interval after initially non-recall results, and menopausal status. PMID- 29343989 TI - Comparison of the performance of five screening methods for sarcopenia. AB - Background: Sarcopenia leads to serious adverse health consequences. There is a dearth of screening tools for this condition, and performances of these instruments have rarely been evaluated. Our aim was to compare the performance of five screening tools for identifying elders at risk of sarcopenia against five diagnostic definitions. Subjects and methods: We gathered cross-sectional data of elders from the SarcoPhAge ("Sarco"penia and "Ph"ysical Impairment with Advancing "Age") study. Lean mass was measured with X-ray absorptiometry, muscle strength with a dynamometer and physical performance with the Short Physical Performance Battery (SPPB) test. Performances of screening methods were described using sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and area under the curve (AUC), according to five diagnostic definitions of sarcopenia. For each screening tool, optimal cutoff points were computed using two methods. Results: A total of 306 subjects (74.8+/-5.9 years, 59.5% women) were included. The prevalence of sarcopenia varied from 5.7% to 16.7% depending on the definition. The best sensitivity (up to 100%) and the best NPV (up to 99.1%) were obtained with the screening test of Ishii et al, regardless of the definition applied. The highest AUC (up to 0.914) was also demonstrated by the instrument of Ishii et al. The most specific tool was the algorithm of the European Working Group on Sarcopenia in Older People (EWGSOP; up to 91.1%). All NPVs were above 87.0%, and all PPVs were below 51.0%. New cutoffs related to each screening instrument were also proposed to better discriminate sarcopenic individuals from non-sarcopenic individuals. Conclusion: Screening instruments for sarcopenia can be relevantly used in clinical practice to make sure to identify individuals who do not suffer from the syndrome. The screening test of Ishii et al showed better properties in terms of distinguishing those at risk of sarcopenia from those who were not at risk. PMID- 29343990 TI - Emerging evidence on the link between depressive symptoms and bone loss in postmenopausal women. AB - Osteoporosis and depression are major health problems of crisis proportions in postmenopausal women. Researchers have established a relationship between bone loss and depression, although few studies have focused on postmenopausal women. The purposes of this integrative review were to synthesize and summarize the available literature on: 1) the associations between bone loss and depression in postmenopausal women; and 2) potential variables that impact the associations between bone loss and depression in postmenopausal women. After searching the databases PubMed, CINAHL, Embase, and the Cochrane library between 2007 and 2017, 12 articles met the inclusion criteria. The majority of the included studies supported the relationship between depression and bone loss in postmenopausal women, although little information is offered as to why this relationship exists. This review summarizes the research that has been completed on depression and bone loss in postmenopausal women and identifies gaps in the literature. These findings will aid in the planning of future research and the development of health care recommendations. PMID- 29343991 TI - Trends and inequities in use of maternal health care services in Indonesia, 1986 2012. AB - Purpose: Overall health status indicators have improved significantly over the past three decades in Indonesia. However, the country's maternal mortality ratio remains high with a stark inequality by region. Fewer studies have explored access inequity in maternal health care service over time using multiple inequality markers. In this study, we analyzed Indonesian Demographic and Health Survey (DHS) data to explore trends and inequities in use of any antenatal care (ANC), four or more ANC (ANC4+), institutional birth, and cesarean section (c section) birth in Indonesia during 1986-2012 to inform policy for future strategies ending preventable maternal deaths. Methods: Indonesian DHS data from 1991, 1994, 1997, 2002/3, 2007, and 2012 surveys were downloaded, merged, and analyzed. Inequity was measured in terms of variation in use by asset quintile, parental education, urban-rural location, religion, and region. Trends in use inequities were assessed plotting changes in rich:poor ratio, rich:poor difference, and concentration indices over period based on asset quintiles. Sociodemographic determinants for service use were explored using multivariable logistic regression analysis. Findings: Between 1986 and 2012, institutional birth rate increased from 22% to 73% and c-section rate from 2% to 16%. Private sector was increasingly contributing in maternal health. There were significant access inequities by asset quintile, parental education, area of residence, and geographical region. The richest women were 5.45 times (95% CI: 4.75-6.25) more likely to give birth in a health facility and 2.83 times (95% CI: 2.23-3.60) more likely to give birth by c-section than their poorest counterparts. Urban women were 3 times more likely to use institutional birth and 1.45 times more likely to give birth by c-section than rural women. Use of all services was higher in Java and Bali than in other regions. Access inequity was narrowing over time for use of ANC and institutional birth but not for c-section birth. Conclusion: Ongoing pro-poor health-financing strategies should be strengthened with introduction of innovative ways to monitor access, equity, and quality of care in maternal health. PMID- 29343992 TI - Validation of BP devices QardioArm(r) in the general population and Omron M6 Comfort(r) in type II diabetic patients according to the European Society of Hypertension International Protocol (ESH-IP). AB - Background: Following the European Society of Hypertension International Protocol (ESH-IP) Revision 2010, QardioArm(r) and Omron M6 Comfort IT(r) oscillometric devices were evaluated in the general population and in patients with type II diabetes, respectively, for self-blood pressure (BP) measurement. Methods: Both devices, QardioArm(r) and Omron M6 Comfort(r), measure BP at the brachial level. The ESH-IP Revision 2010 includes a total number of 33 subjects. For each measure, the difference between observer and device BP values was calculated. In all, 99 pairs of BP differences are classified into three categories (<=5, <=10, and <=15 mmHg). The protocol procedures were followed precisely. Results: QardioArm(r) and Omron M6 Comfort(r) fulfilled the requirements of the ESH-IP and passed the validation process successfully. For QardioArm(r), a total of 69 out of 99 comparisons for systolic blood pressure (SBP) showed an absolute difference within 5 mmHg and 82 out of 99 for diastolic blood pressure (DBP). As for Omron M6 Comfort(r), a total of 83 out of 99 comparisons for SBP showed an absolute difference within 5 mmHg and 77 out of 99 for DBP. The mean differences between the device and mercury readings were 0.7+/-5.9 mmHg for SBP and 0.3+/-4.1 mmHg for DBP for QardioArm(r) and -1.4+/-4.7 mmHg for SBP and -2.1+/-4.3 mmHg for DBP for Omron M6 Comfort(r). With regard to part 2 of ESH-IP 2010, 27 out of 33 subjects had a minimum of two out of three measurements within 5 mmHg difference for SBP and 31 out of 33 subjects for DBP for the QardioArm(r), and 29 out of 33 patients had a minimum of two out of three measurements within 5 mmHg difference for SBP and 26 out of 33 patients for DBP for Omron M6 Comfort(r). Conclusion: QardioArm(r) and Omron M6 Comfort(r) readings differing from the mercury standard by <5, 10, and 15 mmHg fulfill the ESH-IP Revision 2010 requirements. Consequently, these two devices are suitable for use in the general population and non-insulin-dependent type II diabetic patients, respectively. PMID- 29343993 TI - Management of disseminated intravascular coagulation: current insights on antithrombin and thrombomodulin treatments. AB - Sepsis and septic shock are frequently complicated by disseminated intravascular coagulation (DIC), which decreases the survival rate of patients with sepsis. In the past, large international randomized controlled trials (RCTs) using physiological anticoagulants for sepsis-induced DIC were not performed; however, RCTs have been conducted for sepsis and/or septic shock. In these trials, physiological anticoagulants did not show any beneficial effects compared with placebo for the treatment of sepsis and/or septic shock. In Japan, DIC treatments using antithrombin (AT) and/or recombinant human soluble thrombomodulin (rhTM) are common for patients with sepsis-induced DIC. Recently, large propensity score analyses demonstrated that AT and rhTM improved survival in patients with sepsis induced DIC. Furthermore, post hoc analyses and meta-analyses that selected patients with sepsis-induced DIC from the previous large international RCTs indicated that physiological anticoagulants improved survival without increasing the associated sepsis-induced DIC bleeding. DIC treatments, such as AT and rhTM, may demonstrate beneficial effects when they are targeted at patients with sepsis induced DIC only. PMID- 29343994 TI - Calibration and validation of an item bank for measuring general physical function of patients in medical rehabilitation settings. AB - Objective: The objective of this study was to report the item response theory (IRT) calibration of an 18-item bank to measure general physical function (GPF) in a wide range of conditions and evaluate the validity of the derived scores. Methods: All 18 items were administered to a large sample of patients (n=2337) who responded to the items in the context of their outpatient rehabilitation care. The responses, collected 1997- 2000, were modeled using the graded response model, an IRT model appropriate for items with two or more response options. Inter-item consistency was evaluated based on Cronbach's alpha and item to total correlations. Validity of scores was evaluated based on known-groups comparisons (age, number of health problems, symptom severity). The strength of a single, general factor was evaluated using a bi-factor model. Results were used to evaluate IRT assumption and as an indicator of construct validity. Local independence of item responses was also evaluated. Results: Response data met the assumptions of unidimensionality and local independence. Explained common variance of a single general factor was 0.88 (omega hierarchical =0.86). Only two of the 153 pairs of item residuals were flagged for local dependence. Inter-item consistency was high (0.93) as were item to total correlations (mean =0.61). Substantial variation was found in both IRT location (difficulty) and discrimination parameters. All omnibus known-groups comparisons were statistically significant (p<0.001). Conclusion: Item responses fit the IRT unidimensionality assumptions and were internally consistent. The usefulness of GPF scores in discriminating among patients with different levels of physical function was confirmed. Future studies should evaluate the validity of GPF scores based on an adaptive administration of items. PMID- 29343995 TI - HumanMethylation450K Array-Identified Biomarkers Predict Tumour Recurrence/Progression at Initial Diagnosis of High-risk Non-muscle Invasive Bladder Cancer. AB - Background: High-risk non-muscle invasive bladder cancer (HR-NMIBC) is a clinically unpredictable disease. Despite clinical risk estimation tools, many patients are undertreated with intra-vesical therapies alone, whereas others may be over-treated with early radical surgery. Molecular biomarkers, particularly DNA methylation, have been reported as predictive of tumour/patient outcomes in numerous solid organ and haematologic malignancies; however, there are few reports in HR-NMIBC and none using genome-wide array assessment. We therefore sought to identify novel DNA methylation markers of HR-NMIBC clinical outcomes that might predict tumour behaviour at initial diagnosis and help guide patient management. Patients and methods: A total of 21 primary initial diagnosis HR NMIBC tumours were analysed by Illumina HumanMethylation450 BeadChip arrays and subsequently bisulphite Pyrosequencing. In all, 7 had not recurred at 1 year after resection and 14 had recurred and/or progressed despite intra-vesical BCG. A further independent cohort of 32 HR-NMIBC tumours (17 no recurrence and 15 recurrence and/or progression despite BCG) were also assessed by bisulphite Pyrosequencing. Results: Array analyses identified 206 CpG loci that segregated non-recurrent HR-NMIBC tumours from clinically more aggressive recurrence/progression tumours. Hypermethylation of CpG cg11850659 and hypomethylation of CpG cg01149192 in combination predicted HR-NMIBC recurrence and/or progression within 1 year of diagnosis with 83% sensitivity, 79% specificity, and 83% positive and 79% negative predictive values. Conclusions: This is the first genome-wide DNA methylation analysis of a unique HR-NMIBC tumour cohort encompassing known 1-year clinical outcomes. Our analyses identified potential novel epigenetic markers that could help guide individual patient management in this clinically unpredictable disease. PMID- 29343996 TI - Does HLA-B27 Status Influence Ankylosing Spondylitis Phenotype? AB - The association of HLA-B27 with ankylosing spondylitis (AS) remains as one of the intriguing models that could exist between a molecule and human disease in medicine. Although it was reported in 1973, its contribution to AS and related spondyloarthritis continues to be a major challenge for scientific community. It is important to understand its etiopathogenic mechanism and its functions in these diseases. Although the diagnostic and prognostic roles of HLA-B27 in AS are still debated, there is an increasing interest for HLA-B27-based effects especially in HLA-B27(+) patients with AS. This review will focus in the examination of published reports regarding the influence of HLA-B27 status on the demographic and clinical features in AS, with specific interest to its role on AS severity. PMID- 29343997 TI - Hospitalisation in Patients With Heart Failure With Preserved Ejection Fraction. AB - Heart failure is highly prevalent with more than 50% of cases being patients with a preserved ejection fraction (HFPEF), a figure that is projected to increase due to the changing risk factor landscape, in particular the ageing population. Overall mortality is similar to patients with heart failure with reduced ejection fraction (HFREF), as are the rates of hospitalisation. Patients with HFPEF have more comorbid conditions with fewer therapeutic options available. In this review, we explore the epidemiology of hospitalisation of HFPEF, the impact of current treatment modalities, and the potential of future therapies. PMID- 29343998 TI - Rationale and Design for a Monocentric Prospective Study: Sleep Apnea Diagnosis Using a Novel Pacemaker Algorithm and Link With Aldosterone Plasma Level in Patients Presenting With Diastolic Dysfunction (SAPAAD Study). AB - Previous studies showed good agreement between pacemaker respiratory disturbance index (RDI) and polysomnography for diagnosis of severe sleep apnea (SA). The aim of this study is to investigate the diagnostic accuracy of RDI compared with apnea-hypopnea index (AHI) from a cardiorespiratory sleep study for the diagnosis of severe SA within patients requiring a pacemaker and meeting diastolic dysfunction criteria. Secondary objectives are as follows: correlation between plasma aldosterone level and SA severity, diagnostic accuracy of RDI for moderate SA, prevalence of SA among patients with diastolic dysfunction, occurrence of arrhythmias, and improvement of RDI with continuous positive airway pressure therapy. We designed a monocentric prospective nonrandomized study of prevalent cases to include 68 patients with a 6-month follow-up. Both RDI and AHI will be compared 2 months after implantation and after 1 month of continuous positive airway pressure treatment in patients with severe SA. This is the first study that examines diagnostic accuracy of pacemaker algorithm for the diagnosis of SA and correlation with plasma aldosterone levels in patients with diastolic dysfunction. Protocol version: V04. 04/04/2017 Trial registration: ClinicalTrials.gov NCT02751021. PMID- 29343999 TI - Targeted Treatment With Radio Frequency Ablation for Lingual Tonsil. AB - Objectives: Benign enlargement of the lingual tonsils due to various causes may cause symptoms that warrant treatment. Conventional lingual tonsillectomy remains a challenging procedure, and there is no established standard procedure. We aimed to review the patients receiving different methods of lingual tonsil surgery for various indications at our institute. Methods: Retrospective clinical data on all patients with an ablative operation of the tongue base during the 8-year period between 2007 and 2014 at the Helsinki University Hospital, Helsinki, Finland, were reviewed. The larger cohort comprised 35 patients, of whom 26 were men (74%). Ten patients had undergone solely lingual tonsil radio frequency ablation (LTRFA). The minimum follow-up time for all patients was 2 years. Results: Of the 10 patients, 5 patients with LTRFA had been operated on because of symptomatic lingual tonsil hypertrophy and 5 because of periodic fever associated with possible lingual tonsil involvement. In 2 of the 5 patients with periodic fever, the fever cycles ended after the operation. Of the 5 patients, 3 patients with symptomatic lingual tonsil hypertrophy have been non-symptomatic after 1 to 3 treatment sessions. The last 2 patients continue to have persistent symptoms. There were no major complications. Conclusions: Development of new approaches for the management of various lingual tonsil conditions is warranted. Lingual tonsil volume reduction by LTRFA seems to be a treatment alternative with low morbidity but with limited curative effect only. PMID- 29344000 TI - Visible-Near Infrared Spectroscopic Assessment of Urogenital Tissue in Premenopausal and Postmenopausal Women. AB - Background: A clinical study was conducted to evaluate the feasibility of using visible and near-infrared (NIR) spectroscopy as a potential noninvasive measure of genital skin health in premenopausal and postmenopausal women. Methods: A total of 45 female subjects (aged 21-70 years), all of whom gave fully informed consent to participate, were enrolled in the study and assigned to 1 of 3 groups: 15 premenopausal (Pre-M), 15 postmenopausal receiving hormone replacement therapy (Post-M HRT), and 15 postmenopausal receiving no form of hormone replacement therapy (Post-M non-HRT). Spectral measurements were taken at the vaginal mucosa, and spectral data were evaluated for the erythema index (EI), hemoglobin index (HI), bilirubin/beta-carotene, and melanin. The color index (CI; calculated as the ratio of absorbance at 480 nm/540 nm) was also determined. Results were compared with previously published results on biomarkers and physical characteristic of genital tissue measured on the same groups of women. Results: Spectral measurements from the Post-M Non-HRT subjects indicated a significant reduction in HI compared with the Pre-M group (P = .0003) and to the Post-M HRT group (P < .0001). Similarly, EI was reduced in the Post-M Non-HRT (P < .0001 and P = .0041 for the Pre-M and Post-M HRT groups, respectively). In contrast, the Post-M Non-HRT subjects exhibited a significant increase in beta-carotene compared with the Pre-M subjects (P = .0098). Bilirubin and melanin were not significantly affected. The Post-M Non-HRT group exhibited a significant increase in CI, indicating a shift away from the hemoglobin absorption region (510-620 nm wavelength) and toward the bilirubin/beta-carotene absorption region (450-490 nm wavelength). This change was significant when compared with both the Pre-M group (P < .0001) and the Post-M HRT group (P = .0048). The changes in spectral measurements were consistent with previously reported changes in physical parameters (vaginal atrophy, increased pH, decreased skin temperature) and with decreased concentrations of the biomarkers histamine and histidine. Conclusions: Hemodynamic spectral characteristics differ in postmenopausal vaginal tissue compared with tissue in premenopausal women, with decreased absorbance in the hemoglobin absorption region (510-620 nm wavelength) and an increased absorbance in the bilirubin/beta-carotene absorption region (450-490 nm wavelength). A change in absorbance in the visible and NIR wavelengths is a promising, additional measure of genital skin health related to menopause and vulvovaginal atrophy. PMID- 29344001 TI - Intraventricular Hemorrhage Due to Coagulopathy After Vitamin K Administration in a Preterm Infant With Maternal Crohn Disease. AB - Intraventricular hemorrhage (IVH) is a devastating morbidity in preterm infants and can result in poor neurodevelopmental outcomes. Intraventricular hemorrhage usually occurs within 72 hours after birth; post-acute-phase IVH (>1 week after birth) is uncommon. Development of the hemostatic system in fetuses and neonates is an age-dependent evolving process, and the neonatal hemostatic system is characterized by low levels of vitamin K-dependent factors, with further reduction caused by prematurity. Importantly, a severe coagulation deficiency can be a major contributing factor of IVH. Active maternal Crohn disease (CD) during pregnancy causes malnutrition via enteral malabsorption; this may include vitamin K deficiency, resulting in fetal vitamin K deficiency. We herein describe a preterm infant who was born to a mother with CD and developed post-acute-phase IVH due to coagulopathy despite vitamin K administration. PMID- 29344002 TI - The journey from clinician to undergraduate medical educator involves four patterns of transformation. AB - Objectives: Traditionally, teaching is part of a clinician's job. Some practitioners recognize the teaching activity as rewarding. This study explored the ways clinical practitioners experience their journey from clinicians to medical teachers, analyzing their prior experiences of teaching and learning, conceptions of good teaching and learning, perceptions of learning environments, and finally, how those factors influence their approaches to teaching. Methods: Data for phenomenographic analysis were collected through semi-structured interviews conducted in Spanish and administered to twelve clinical teachers in three medical schools in Colombia. Results: Through sequential phases of analysis, we constructed a conceptual diagram to identify critical concepts, themes, and categories that describe patterns that clinicians adopt during their journey to become medical teachers. We identified two themes and four patterns that describe the journey from practitioner to medical teacher: the identity theme, referring to "what" practitioners showed as the object of the journey and the changing process theme referring to "how" participants adopt changes during the journey. We describe four patterns that describe the journey that physicians adopt when exposed to the experience of clinical teaching. Conclusion: It is possible to identify two themes and to devise at least four patterns in ways of experiencing the journey to medical teacher. These patterns are not a fixed set of characteristics, but rather a spectrum of experiences. Taking into consideration the professional identity of clinical teachers and the path of their teaching process change, it might be possible to devise better strategies for teaching development activities. PMID- 29344003 TI - A medical student in private practice for a 1-month clerkship: a qualitative exploration of the challenges for primary care clinical teachers. AB - Purpose: The predicted shortage of primary care physicians emphasizes the need to increase the family medicine workforce. Therefore, Swiss universities develop clerkships in primary care physicians' private practices. The objective of this research was to explore the challenges, the stakes, and the difficulties of clinical teachers who supervised final year medical students in their primary care private practice during a 1-month pilot clerkship in Geneva. Methods: Data were collected via a focus group using a semistructured interview guide. Participants were asked about their role as a supervisor and their difficulties and positive experiences. The text of the focus group was transcribed and analyzed qualitatively, with a deductive and inductive approach. Results: The results show the nature of pressures felt by clinical teachers. First, participants experienced the difficulty of having dual roles: the more familiar one of clinician, and the new challenging one of teacher. Second, they felt compelled to fill the gap between the academic context and the private practice context. Clinical teachers were surprised by the extent of the adaptive load, cognitive load, and even the emotional load involved when supervising a trainee in their clinical practice. The context of this rotation demonstrated its utility and its relevance, because it allowed the students to improve their knowledge about the outpatient setting and to develop their professional autonomy and their maturity by taking on more clinical responsibilities. Conclusion: These findings show that future training programs will have to address the needs of clinical teachers as well as bridge the gap between students' academic training and the skills needed for outpatient care. Professionalizing the role of clinical teachers should contribute to reaching these goals. PMID- 29344004 TI - Perceived organizational support and moral distress among nurses. AB - Background: Moral distress is prevalent in the health care environment at different levels. Nurses in all roles and positions are exposed to ethically challenging conditions. Development of supportive climates in organizations may drive nurses towards coping moral distress and other related factors. This study aimed at determining the level of perceived organizational support and moral distress among nurses and investigating the relationship between the two variables. Methods: This was a correlational-descriptive study. A total of 120 nurses were selected using random quota sampling method. A demographic questionnaire, Survey of Perceived Organizational Support, and Moral Distress Scale were used to collect the data which were analyzed using descriptive and analytical tests in SPSS20. Results: The mean perceived organizational support was low (2.63 +/- 0.79). The mean moral distress was 2.19 +/- 0.58, which shows a high level of moral distress. Moreover, Statistical analysis showed no significant relationship between perceived organizational support and moral distress (r = 0.01, p = 0.86). Conclusion: Given the low level of perceived organizational support and high moral distress among nurses in this study, it is necessary to provide a supportive environment in hospitals and to consider strategies for diminishing moral distress. PMID- 29344005 TI - Biological clocks: their relevance to immune-allergic diseases. AB - The 2017 Nobel Prize for Physiology or Medicine, awarded for the discoveries made in the past 15 years on the genetic and molecular mechanisms regulating many physiological functions, has renewed the attention to the importance of circadian rhythms. These originate from a central pacemaker in the suprachiasmatic nucleus in the brain, photoentrained via direct connection with melanopsin containing, intrinsically light-sensitive retinal ganglion cells, and it projects to periphery, thus creating an inner circadian rhythm. This regulates several activities, including sleep, feeding times, energy metabolism, endocrine and immune functions. Disturbances of these rhythms, mainly of wake/sleep, hormonal secretion and feeding, cause decrease in quality of life, as well as being involved in development of obesity, metabolic syndrome and neuropsychiatric disorders. Most immunological functions, from leukocyte numbers, activity and cytokine secretion undergo circadian variations, which might affect susceptibility to infections. The intensity of symptoms and disease severity show a 24 h pattern in many immunological and allergic diseases, including rheumatoid arthritis, bronchial asthma, atopic eczema and chronic urticaria. This is accompanied by altered sleep duration and quality, a major determinant of quality of life. Shift work and travel through time zones as well as artificial light pose new health threats by disrupting the circadian rhythms. Finally, the field of chronopharmacology uses these concepts for delivering drugs in synchrony with biological rhythms. PMID- 29344006 TI - Histone deacetylase 2 (HDAC2) attenuates lipopolysaccharide (LPS)-induced inflammation by regulating PAI-1 expression. AB - Background: Sepsis is a life-threatening organ dysfunction caused by dysregulated host response to infection, and is primarily characterized by an uncontrolled systemic inflammatory response. In the present study, we developed an effective adjunct therapy mediated by a novel mechanism, to attenuate overt inflammation. LPS-treated macrophages were adopted as an in vitro model of endotoxin-induced inflammation during sepsis. Experiments were carried out using primary mouse peritoneal macrophages and the murine macrophage cell line RAW264.7, to elucidate the mechanisms by which HDAC2 modulates endotoxin-induced inflammation. Results: Results revealed that PAI-1, TNF, and MIP-2 expression were inhibited by theophylline, an HDAC2 enhancer, in a RAW macrophage cell line, following LPS induced inflammation. Thus, HDAC2 plays an important role in immune defense by regulating the expression of inflammatory genes via the c-Jun/PAI-1 pathway. During LPS-induced inflammation, overexpression of HDAC2 was found to inhibit PAI 1, TNF, and MIP-2 expression. Following LPS stimulation, HDAC2 knockdown increased nuclear translocation and DNA binding of c-Jun to the PAI-1 gene promoter, thereby activating PAI-1 gene transcription. Furthermore, inhibition of PAI-1 by TM5275 alone or in combination with theophylline notably suppressed TNF and MIP-2 expression. Conclusion: HDAC2 can attenuate lipopolysaccharide-induced inflammation by regulating c-Jun and PAI-1 expression in macrophages. PMID- 29344007 TI - Four-factor prothrombin complex concentrate improves thrombin generation and prothrombin time in patients with bleeding complications related to rivaroxaban: a single-center pilot trial. AB - Background: Direct oral anticoagulants (DOACs) pose a great challenge for physicians in life-threatening bleeding events. The aim of this study was to test the efficacy of reversing the DOAC rivaroxaban using four-factor PCC (prothrombin complex concentrate), a non-specific reversing agent. Methods: Patients with life threatening bleeding events during rivaroxaban treatment were included and administered 25 U kg-1 of PCC. Blood samples were collected immediately prior to as well as after PCC treatment at predefined time intervals. The primary endpoint was defined as the difference in thrombin generation (TG) parameters ETP (endogenous thrombin potential) and Cmax (peak thrombin generation) prior to and ten minutes subsequent to PCC treatment. Results: Thirteen patients, of whom the majority suffered from intra-cranial haemorrhage (ICH) or subdural haemorrhage (SDH), were included and administered PCC. The results show that the ETP (TG) significantly (p = 0.001) improved by 68% and Cmax (TG) by 54% (p = 0.001) during PCC treatment. In addition, the Quick value (prothrombin time: QuickPT) significantly improved by 28% and the activated partial thromboplastin time (aPTT) was decreased by 7% ten minutes after PCC administration. Cmax was reduced at baseline, but not ETP, aPTT or QuickPT. Lag time until initiation (TG, tlag), thromboelastometry clotting time (CTEXTEM) and time to peak (TG, tmax) correlated best with measured rivaroxaban levels and were out of normal ranges at baseline, but did not improve after PCC administration. In 77% of the patients bleeding (ICH/SDH-progression) ceased following PCC administration. During the study three participants passed away due to other complications not related to PCC treatment. The possibility of thrombosis formation was also evaluated seven days after administering PCC and no thromboses were found. Conclusions: This study shows that use of PCC improved ETP, Cmax, QuickPT and aPTT. However, of these parameters, only Cmax was reduced at the defined baseline. It can be concluded that CTEXTEM, tlag and tmax correlated best with the measured rivaroxaban levels. The study drug was found to be safe. Nonetheless, additional studies specifically targeting assessment of clinical endpoints should be performed to further confirm these findings. Clinical trial registration: EudraCT trial No. 2013-004484-31. PMID- 29344010 TI - Evidence Supporting No Dose Response of Mortality to Air Quality. PMID- 29344008 TI - Understanding the factors that effect maximal fat oxidation. AB - Lipids as a fuel source for energy supply during submaximal exercise originate from subcutaneous adipose tissue derived fatty acids (FA), intramuscular triacylglycerides (IMTG), cholesterol and dietary fat. These sources of fat contribute to fatty acid oxidation (FAox) in various ways. The regulation and utilization of FAs in a maximal capacity occur primarily at exercise intensities between 45 and 65% VO2max, is known as maximal fat oxidation (MFO), and is measured in g/min. Fatty acid oxidation occurs during submaximal exercise intensities, but is also complimentary to carbohydrate oxidation (CHOox). Due to limitations within FA transport across the cell and mitochondrial membranes, FAox is limited at higher exercise intensities. The point at which FAox reaches maximum and begins to decline is referred to as the crossover point. Exercise intensities that exceed the crossover point (~65% VO2max) utilize CHO as the predominant fuel source for energy supply. Training status, exercise intensity, exercise duration, sex differences, and nutrition have all been shown to affect cellular expression responsible for FAox rate. Each stimulus affects the process of FAox differently, resulting in specific adaptions that influence endurance exercise performance. Endurance training, specifically long duration (>2 h) facilitate adaptations that alter both the origin of FAs and FAox rate. Additionally, the influence of sex and nutrition on FAox are discussed. Finally, the role of FAox in the improvement of performance during endurance training is discussed. PMID- 29344012 TI - Coding of Tissue and Cell Products. PMID- 29344009 TI - Evaluation of nipple aspirate fluid as a diagnostic tool for early detection of breast cancer. AB - There has been tremendous progress in detection of breast cancer in postmenopausal women, resulting in two-thirds of women surviving more than 20 years after treatment. However, breast cancer remains the leading cause of cancer related deaths in premenopausal women. Breast cancer is increasing in younger women due to changes in life-style as well as those at high risk as carriers of mutations in high-penetrance genes. Premenopausal women with breast cancer are more likely to be diagnosed with aggressive tumours and therefore have a lower survival rate. Mammography plays an important role in detecting breast cancer in postmenopausal women, but is considerably less sensitive in younger women. Imaging techniques, such as contrast-enhanced MRI improve sensitivity, but as with all imaging approaches, cannot differentiate between benign and malignant growths. Hence, current well-established detection methods are falling short of providing adequate safety, convenience, sensitivity and specificity for premenopausal women on a global level, necessitating the exploration of new methods. In order to detect and prevent the disease in high risk women as early as possible, methods that require more frequent monitoring need to be developed. The emergence of "omics" strategies over the last 20 years, enabling the characterisation and understanding of breast cancer at the molecular level, are providing the potential for long term, longitudinal monitoring of the disease. Tissue and serum biomarkers for breast cancer stratification, diagnosis and predictive outcome have emerged, but have not successfully translated into clinical screening for early detection of the disease. The use of breast-specific liquid biopsies, such as nipple aspirate fluid (NAF), a natural secretion produced by breast epithelial cells, can be collected non-invasively for biomarker profiling. As we move towards an age of active surveillance, home-based liquid biopsy collection kits are increasingly being applied and these could provide a paradigm shift where NAF biomarker profiling is used for routine breast health monitoring. The current status of established and newly emerging imaging techniques for early detection of breast cancer and the potential for alternative biomarker screening of liquid biopsies, particularly those applied to high-risk, premenopausal women, will be reviewed. PMID- 29344011 TI - PCB118-Induced Cell Proliferation Mediated by Oxidative Stress and MAPK Signaling Pathway in HELF Cells. AB - The present study used human lung fibroblast (HELF) cells as a test model to evaluate the role of oxidative stress (OS) and extracellular signal-regulated kinases 1/2 (ERK1/2) protein in HELF cell proliferation exposed to PCB118. Results from 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide demonstrated that PCB118 at lower concentrations stimulated proliferation of HELF cell and abrogate proliferative effect at higher dose concentrations and in a time-dependent manner. Moreover, reactive oxygen species, malondialdehyde (MDA), and superoxide dismutase showed a significant increase at higher concentrations of PCB118 than the lower concentrations with the passage of time. Antioxidant enzymes such as glutathione peroxidase exhibited decreasing trends in dose- and time-dependent manner. Lipid peroxidation assay resulted in a significant increase in MDA level in PCB118-treated HELF cells compared with controls, suggesting that OS plays a key role in PCB118-induced toxicity. Comet assay indicated a significant increase in genotoxicity at higher concentrations of PCB118 exposure than the lower concentrations. It was found that PCB118 showed expression of ERK1/2 protein after 4 hours, while after 48 hours, the protein expression was less, indicating PCB toxicity to MAPK protein of HELF cell. Oxidative stress, ERK1/2, and HELF cell proliferation exhibited correlation. The results will elaborate toxicological evaluation of PCB118 to HELF cells and will help to develop drug for PCB-induced diseases. PMID- 29344013 TI - ISBT 128 Standard for Coding Medical Products of Human Origin. AB - Background: ISBT 128 is an international standard for the terminology, coding, labeling, and identification of medical products of human origin (MPHO). Full implementation of ISBT 128 improves traceability, transparency, vigilance and surveillance, and interoperability. Methods: ICCBBA maintains the ISBT 128 standard through the activities of a network of expert volunteers, including representatives from professional scientific societies, governments and users, to standardize and maintain MPHO identification. These individuals are organized into Technical Advisory Groups and work within a structured framework as part of a quality-controlled standards development process. Results: The extensive involvement of international scientific and professional societies in the development of the standard has ensured that ISBT 128 has gained widespread recognition. The user community has developed confidence in the ability of the standard to adapt to new developments in their fields of interest. The standard is fully compatible with Single European Code requirements for tissues and cells and is utilized by many European tissue establishments. ISBT 128's flexibility and robustness has allowed for expansions into subject areas such as cellular therapy, regenerative medicine, and tissue banking. Conclusion: ISBT 128 is the internationally recognized standard for coding MPHO and has gained widespread use globally throughout the past two decades. PMID- 29344014 TI - From the EU Legislation to the Application of the Single European Code: Support to the Implementation. AB - The Italian National Transplant Centre (CNT) is coordinating with the Italian National Blood Centre (CNS) the Joint Action '!' (www.eurocet128.eu), already built the European Tissue Establishment and Tissue and Cell Product Compendia between 2011 and 2014 in order to provide European Member States with a tool which would grant traceability of tissues and cells at human transplant purpose across the European Union. The two compendia are available on an online platform hosted and managed by the European Commission. PMID- 29344015 TI - Implementation of the Single European Code in a Multi-Tissue Bank. AB - Introduction: The traceability of tissue and cells transplants is important to ensure a high level of safety for the recipients. With the final introduction of the Single European Code (SEC) in April 2017 in the EU a consistent system among all member states became mandatory. Methods: The regulations for the SEC on EU and national level were evaluated. An overview on the different parts of the SEC with detailed explanations is given. Our own experiences with the implementation of the SEC in our multi-tissue bank are reported in addition. Results: The implementation of the SEC in our multi-tissue bank could be successfully realized. However, it revealed a number of difficulties, especially the sterile labeling of certain tissue transplants and the complex update of the existing database. Conclusion: The introduction of the SEC has made a contribution to the safety of recipients of tissue and cells transplants through a system of comprehensive and transparent traceability. PMID- 29344016 TI - Coding of Tissue and Cell Preparations Using Eurocode. AB - Traceability of products requires their unique identification. In Germany blood products have been encoded by Eurocode since 1998. EU Directives 2004/23/EC, 2006/86/EC and 2015/565/EC demanded unique identification and safe traceability procedure also for tissues and cells. Eurocode IBLS e.V. and the German Society of Transfusion Medicine and Immunohematology (DGTI) working parties '!' within the Single European Code (SEC). Several data elements of Eurocode can be used to create the complete SEC data structure, except the tissue establishment number. This can be found on the EU Coding Platform in the internet. Consequently, existing software and labeling solutions in Eurocode format could be easily upgraded with SEC. PMID- 29344017 TI - Global Registration Identifier for Donors (GRID) of Hematopoietic Stem Cells: Road to Automation and Safety. AB - Once a cohort exceeds a certain size, it becomes mandatory to assign an identifier (ID) for each individual to ensure a secure, reliable, and unambiguous assignment. In the field of hematopoietic stem cell transplantation, with a still growing number of voluntary unrelated donors, it was recognized that a system needs to be developed to uniquely identify potential donors on a global scale to facilitate communication and to prevent errors in identification of donors. Efforts in this respect resulted in establishment of the GRID, with a defined structure and allocated rules. To successfully implement such a project, collaboration among all organizations involved in the process of volunteer donor recruitment, facilitation, and provision of hematopoietic stem cell products is necessary. Therefore, rapidly accessible information combined with a high level of communication and exchange of experiences is crucial. Established systems like the ISBT 128 and the Single European Code (SEC), which standardize the terminology, identification, coding, and labeling of tissues and cells of human origin, serve as a basis on how to successfully implement the GRID on a global scale. PMID- 29344018 TI - Three-Year Experience in NAT Screening of Blood Donors for Transfusion Transmitted Viruses in Croatia. AB - Background: Croatia implemented individual donation (ID)-NAT testing of blood donors in 2013 for three viruses HBV, HCV, and HIV-1 as a mandatory test for all blood donors. This study assessed the impact of NAT screening 3 years after its implementation. Methods: A total of 545,463 donations were collected and screened for HBV, HCV, and HIV-1 using the Procleix Ultrio Plus Assay. All initially reactive (IR) NAT samples were retested in triplicate and, if repeatedly reactive (RR), NAT discriminatory assay (dNAT) was performed. ID-NAT positive donations were confirmed by RT-PCR on the COBAS AmpliPrep/TaqMan platform. Results: Out of 545,463 samples tested, 108 (0.02%) were RR in NAT. There were 82 (75,9%) HBV reactive, 16 (14.8%) HCV reactive, and 10 (9.3%) HIV-1 reactive samples. 51 (47.2%) samples were ID-NAT positive only. Out of these 51 NAT yield cases, 1 window period HIV-1 and 50 occult HBV infections (OBI) were determined. There were only two potential HBV DNA transmissions from OBI donors. Conclusion: The implementation of NAT screening for three viruses has improved blood safety in Croatia. During the 3-year period, 1 window period HIV-1 and a number of occult HBV donations were identified. PMID- 29344019 TI - Using Blood Donor-Derived ABO and RhD Blood Groups Helps to Detect Wrong Blood in Tube Errors in Recipients. AB - Background: Comparing the ABO and RhD group of a recipient's current pre transfusion sample against their historical group is an important means of detecting wrong blood in tube (WBIT) errors. This study investigated the utility of using the donor ABO and RhD group as the historical check for recipients. Methods: A single database stores serological information on blood donors, pregnant women, and patients throughout southern Denmark. A donor ABO and RhD group can be the historical blood group should that donor later require a transfusion. This database was searched to determine how often the ABO and RhD group on a recipient's current pre-transfusion sample was discrepant with their historical donor-derived blood group. Results: During about 21 years, ABO and RhD groupings were performed on 76,455 blood donors and on 424,697 patients. There were 13,630/424,697 (3.2%) patients who had their donor-derived ABO and RhD group used as the historical comparison with the current sample; 6/13,630 (0.04%) of the current pre-transfusion samples on these patients were discrepant with the donor-derived historical group because of WBIT errors. Seven other discrepancies with the donor-derived blood group were also found. Conclusion: Accessing the donor-derived ABO and RhD group can be an important safeguard against WBIT mediated mistransfusions. PMID- 29344020 TI - A Case of Immune Thrombocytopenia as a Rare Side Effect of an Immunotherapy with PD1-Blocking Agents for Metastatic Melanoma. AB - Background: Checkpoint blocking agents such as pembrolizumab or nivolumab may induce a diversity of mostly autoimmune-mediated side effects. These autoimmune phenomena mainly affect ductless glands such as the pituitary gland (hypophysitis), the thyroid gland (thyreoiditis), the skin (vitiligo and rash), the colon (colitis), and the lung (pneumonitis). Furthermore, many other organs or organ systems may be affected. Case Report: This work describes a case of an immune thrombocytopenia that developed or rather became clinically significant shortly after initiation of a systemic therapy with first nivolumab and later pembrolizumab given due to metastatic melanoma. Platelet counts before this systemic therapy were slightly decreased with values around 110/nl (normal value 140-400/nl). Thrombocytopenia developed or became apparent rapidly within 10 days after the first intravenous application of nivolumab and worsened after changeover to pembrolizumab. Therapy had to be stopped due to disease progression and steady aggravation of thrombocytopenia. Immune hematology assays could prove an autoimmune mediated genesis of thrombocytopenia. Conclusion: Checkpoint inhibitors may induce a multiplicity of mostly autoimmune-mediated side effects. In contrast to chemotherapy-induced cytopenia that results from bone marrow toxicity, thrombocytopenia in melanoma patients treated with checkpoint inhibiting substances seems to result from autoimmune-mediated side effects in the majority of the cases. Thorough laboratory controls during these therapies are therefore required. In case of thrombocytopenia, immune hematology testing to diagnose or rule out immune thrombocytopenia is indispensable. PMID- 29344021 TI - Relevance of Endothelial Cell-Specific Molecule 1 (Endocan) Plasma Levels for Predicting Pulmonary Infection after Cardiac Surgery in Chronic Kidney Disease Patients: The Endolung Pilot Study. AB - Objectives: This pilot study aimed to evaluate the relevance of endocan plasma levels for predicting pulmonary infection after cardiac surgery in patients with chronic kidney disease (CKD). Methods: Serum collected in a previous prospective cohort study (from 166 patients with preoperative CKD who underwent cardiac surgery) was used. Five patients with postoperative pulmonary infection were compared with 15 randomly selected CKD patients with an uneventful outcome. Blood samples were tested at 4 time points (preoperatively and 6, 12, and 24 h after the end of surgery). Endocan, procalcitonin, and C-reactive protein plasma levels were compared between the two groups. Results: At 6 h, the patients with pulmonary infection had significantly higher levels of endocan than the patients without pulmonary infection (24.2 +/- 15.6 vs. 6.4 +/- 3.2 ng/mL; p = 0.03). A receiver operating characteristic curve analysis showed 80% sensitivity and 100% specificity for endocan to predict pulmonary infection (area under the curve 0.84), with a cutoff value of 15.9 ng/mL. The time saved by assessment of the endocan dosage compared to a clinical diagnosis of pulmonary infection was 47 h. Conclusion: This pilot study showed that a specific study to assess the link between endocan plasma levels and pulmonary infection after cardiac surgery in CKD patients is of potential utility. PMID- 29344022 TI - Role of Body Mass Index in Acute Kidney Injury Patients after Cardiac Surgery. AB - Background/Aims: To explore the association of body mass index (BMI) with the risk of developing acute kidney injury after cardiac surgery (CS-AKI) and for AKI requiring renal replacement therapy (AKI-RRT) after cardiac surgery. Methods: Clinical data of 8,455 patients undergoing cardiac surgery, including demographic preoperative, intraoperative, and postoperative data were collected. Patients were divided into underweight (BMI <18.5), normal weight (18.5<= BMI <24), overweight (24<= BMI <28), and obese (BMI >=28) groups. The influence of BMI on CS-AKI incidence, duration of hospital, and intensive care unit (ICU) stays as well as AKI-related mortality was analyzed. Results: The mean age of the patients was 53.2 +/- 13.9 years. The overall CS-AKI incidence was 33.8% (n = 2,855) with a hospital mortality of 5.4% (n = 154). The incidence of AKI-RRT was 5.2% (n = 148) with a mortality of 54.1% (n = 80). For underweight, normal weight, overweight, and obese cardiac surgery patients, the AKI incidences were 29.9, 31.0, 36.5, and 46.0%, respectively (p < 0.001). The hospital mortality of AKI patients in the 4 groups was 9.5, 6.0, 3.8, and 4.3%, whereas the hospital mortality of AKI-RRT patients in the 4 groups was 69.2, 60.8, 36.4, and 58.8%, both significantly different (p < 0.05). Hospital and ICU stay durations were not significantly different in the 4 BMI groups. Conclusion: The hospital prognosis of AKI and AKI-RRT patients after cardiac surgery was best when their BMI was in the 24-28 range. PMID- 29344023 TI - Eicosapentaenoic Acid as a Potential Therapeutic Approach to Reduce Cardiovascular Risk in Patients with End-Stage Renal Disease on Hemodialysis: A Review. AB - Background: Patients with end-stage renal disease on hemodialysis have excess cardiovascular disease (CVD) burden with substantially increased CV event rates compared with the general population. Summary: Traditional interventions that, according to standard clinical guidelines, reduce CV risk such as antihypertensive therapy, diet, exercise, and statins are not similarly effective in the hemodialysis population. This raises the question of whether additional risk factors, such as enhanced inflammation and oxidative stress, may drive the increased CVD burden in hemodialysis patients. Eicosapentaenoic acid (EPA), an omega-3 polyunsaturated fatty acid, is incorporated into the atherosclerotic plaque as well as membrane phospholipid bilayers and produces beneficial effects on inflammatory and oxidative mechanisms involved in atherosclerotic plaque formation and progression. EPA levels and the ratio of EPA to the omega-6 polyunsaturated fatty acid arachidonic acid (AA) are reduced in hemodialysis patients. Serum EPA levels have been inversely correlated with proinflammatory cytokines, and the EPA/AA ratio has been inversely associated with CV events in hemodialysis cohorts. Three recent studies involving over 800 hemodialysis patients and follow-up of 2-3 years suggest that EPA therapy may improve clinical outcomes in this patient population as evidenced by significant reductions in cardiovascular mortality, all-cause mortality, and/or CV events. Key Messages: Further studies with high-purity EPA are warranted in patients on hemodialysis, especially given the fact that other interventions including antihypertensives, diet, exercise, and statins have not provided meaningful benefit. PMID- 29344024 TI - Elevated Phosphate Levels Trigger Autophagy-Mediated Cellular Apoptosis in H9c2 Cardiomyoblasts. AB - BACKGROUND/AIM: In chronic kidney disease (CKD), kidneys fail to maintain phosphorus homeostasis in serum. Elevated phosphorus levels in serum have been associated with cardiovascular diseases in CKD patients and in normal individuals. In this study, we evaluated the level of autophagy- and apoptosis related markers under different concentrations of hyperphosphate in myocardial cells. METHODS: Modulation inflicted on the levels of various survival-, autophagy-, and apoptosis-related markers were determined by Western blotting analysis using total protein extract. FITC-annexin V staining was performed to quantify the apoptotic cells in all groups. RESULTS: Hyperphosphate treatments showed to induce autophagy-related proteins beclin-1, ATG7, and LC3 II through the pAMPK-ULK1 pathway in Western blotting analysis. Further, apoptosis associated proteins such as Bax, Bid, cytochrome c, and c-caspase-9 were also upregulated with hyperphosphate treatment. 3-Methyladenine, an autophagy inhibitor, inhibited apoptosis significantly in FITC-annexin V staining, and the inhibition of Bax, cytochrome c, and c-caspase-3 was shown by Western blotting. CONCLUSION: The results suggest that hyperphosphate in H9c2 cardiomyoblasts would lead to cellular apoptosis via autophagy, which is mediated by the pAMPK signaling pathway. Our findings revealed the possible mechanism responsible for the heart damage under hyperphosphatemia. PMID- 29344025 TI - Insulin Resistance in Kidney Disease: Is There a Distinct Role Separate from That of Diabetes or Obesity? AB - Insulin resistance is a central component of the metabolic dysregulation observed in obesity, which puts one at risk for the development of type 2 diabetes and complications related to diabetes such as chronic kidney disease. Insulin resistance and compensatory hyperinsulinemia place one at risk for other risk factors such as dyslipidemia, hypertension, and proteinuria, e.g., development of kidney disease. Our traditional view of insulin actions focuses on insulin sensitive tissues such as skeletal muscle, liver, adipose tissue, and the pancreas. However, insulin also has distinct actions in kidney tissue that regulate growth, hypertrophy, as well as microcirculatory and fibrotic pathways which, in turn, impact glomerular filtration, including that governed by tubuloglomerular feedback. However, it is often difficult to discern the distinct effects of excess circulating insulin and impaired insulin actions, as exist in the insulin resistance individual, from the associated effects of obesity or elevated systolic blood pressure on the development and progression of kidney disease over time. Therefore, we review the experimental and clinical evidence for the distinct impact of insulin resistance on kidney function and disease. PMID- 29344026 TI - Evaluation of the Predictive Value of the Serum Calcium-Magnesium Ratio for All Cause and Cardiovascular Mortality in Incident Dialysis Patients. AB - Background/Aim: Cardiovascular disease is the most serious cause of death in patients on hemodialysis. Low serum magnesium (Mg) and high serum calcium (Ca) levels have been associated with poor outcome and cardiovascular mortality in patients on maintenance and initiation dialysis. As a more accurate marker is warranted, we evaluated the efficacy of a novel serum Ca-Mg marker of all-cause and cardiovascular mortality that indicates vessel calcification. Methods: We recruited 378 consecutive patients with end-stage renal disease who started dialysis between January 2009 and December 2015 at the Japanese Red Cross Ishinomaki Hospital. We collected data of patients' demographic characteristics and comorbidities from their electronic medical records. We retrospectively examined the association of the serum Ca-Mg ratio with all-cause and cardiovascular mortality using the Cox proportional hazard model, and determined the value that predicted cardiovascular death using the receiver operating characteristic (ROC) curve. Results: Overall, 253 patients with serum Mg and Ca data were analyzed. The 3-year survival rate of this group was 0.70 (95% confidence interval [CI] 0.55-0.80), and the hazard ratio for the risk of death was 3.94 (95% CI 1.37-11.31). The 3-year cardiovascular mortality rate was 0.12 (95% CI 0.05-0.23), which was significantly higher than that of the other groups. The ROC curve of cardiovascular mortality with the Ca-Mg ratio was greater than that of Mg (area under the curve 0.75 vs. 0.69, p = 0.037). Conclusion: A high Ca Mg ratio was significantly associated with all-cause and cardiovascular mortality, and it was more accurate than serum Mg. PMID- 29344027 TI - Plasma Volume and Renal Function Predict Six-Month Survival after Hospitalization for Acute Decompensated Heart Failure. AB - Background: Plasma volume (PV) is contracted in stable patients with heart failure (HF) due to decongestion strategies. On the other hand, increased PV can adversely affect the trajectory of HF. We therefore examined the effects of increased percentage change in PV (%DeltaPV), blood urea nitrogen (BUN), and %DeltaPV stratified by BUN and glomerular filtration rate (GFR) on survival after discharge in patients hospitalized for acute decompensated HF (ADHF). Methods: We used the Strauss-Davis-Rosenbaum formula to calculate the %DeltaPV between baseline and hospital discharge in a cohort from the Evaluation Study of Congestive Heart Failure and Pulmonary Artery Catheterization Effectiveness trial (ESCAPE). Kaplan-Meier curves were constructed for survival over 6 months. Cox proportional hazards regression was used to obtain adjusted hazard ratios (HR) and 95% confidence intervals (95% CI) for the associations between survival after discharge and %DeltaPV, BUN, and %DeltaPV stratified by BUN and GFR. Results: Of the 324 patients included in our study (age 56.1 +/- 13.6 years, 26.5% female), those with increased or no %DeltaPV at discharge were less likely to survive at 6 months compared with those having reduced %DeltaPV (log rank, p = 0.0093). Increased %DeltaPV (HR 1.08 per 10% increase; 95% CI: 1.02-1.14) and increased BUN at discharge (HR 1.02 per mg/dL; 95% CI: 1.01-1.03) were independently associated with worse survival. Decreasing %DeltaPV had a greater association with improved survival in patients with discharge BUN <31 mg/dL (p = 0.02) and discharge GFR >40 mL/min/1.73 m2 (p = 0.047). Conclusions: Increased %DeltaPV and BUN at discharge predicted worse 6-month survival in patients with ADHF. Decreased %DeltaPV with low BUN or high GFR at discharge was associated with improved survival. PMID- 29344028 TI - Combination Therapy with Renin-Angiotensin System Blockers and Vitamin D Receptor Activators for Predialysis Patients Is Associated with the Incidence of Cardiovascular Events after Dialysis Initiation: A Multicenter Nonrandomized Prospective Cohort Study. AB - Background: Several human studies reported that the combined use of renin angiotensin system blockers (RASBs) and vitamin D receptor activators (VDRAs) resulted in decreased urinary protein excretion. However, it is unknown whether this combination therapy influences the incidence of cardiovascular (CV) events in dialysis patients. Methods: The study was a multicenter nonrandomized prospective cohort analysis including 1,518 patients. Patients were classified into 4 groups based on medications prescribed before dialysis initiation: those who did not receive RASBs or oral VDRAs (N group), those receiving only RASBs, those receiving only VDRAs, and those receiving a combination of RASBs and VDRAs (RD group). CV events after dialysis initiation were compared using the log-rank test. Factors contributing to the incidence of CV events were examined using multivariate Cox proportional hazard regression analysis. Results: Significant differences were observed in the incidence of CV events and all-cause mortality between the 4 groups (p = 0.021 and p = 0.001, respectively). Cox proportional hazard analysis revealed that the incidence of CV events was significantly lower in the RD group than in the N group (hazard ratio [HR] = 0.65, 95% confidence interval [CI]: 0.50-0.86, p = 0.002). Multivariate analysis revealed that the incidence of CV events was significantly lower in the RD group than in the N group (HR = 0.66, 95% CI: 0.47-0.93, p = 0.016). Conclusion: Combination therapy with RASBs and VDRAs in patients before dialysis initiation was associated with a reduction in CV events during maintenance dialysis. PMID- 29344029 TI - Primary Adrenal Lymphoma Presenting with Adrenal Failure: A Case Report and Review of the Literature. AB - Introduction: Primary adrenal lymphoma is rare, with a few cases reported in the literature. Most often it manifests as bilateral adrenal lesions and adrenal insufficiency is a common complication. Case Presentation: A 53-year-old male was referred with abdominal discomfort and darkening of the skin since 1 month prior to admission. His workups detected large bilateral adrenal masses. The patient was admitted due to hypotension, and was diagnosed with adrenal insufficiency. Laboratory studies showed high erythrocyte sedimentation rate (ESR), lactate dehydrogenase (LDH), and adrenocorticotropin levels. There was no other organ involvement and computed tomography (CT)-guided percutaneous biopsy of the adrenal gland revealed B-cell type of non-Hodgkin lymphoma. Replacement therapy with glucocorticoid and mineralocorticoid was initiated with remission of symptoms. After 3 months of chemotherapy his condition improved, but the patient worsened thereafter and died 2 months later. Conclusions: However, this case reminded the importance of considering primary adrenal lymphoma in the differential diagnosis of bilateral adrenal masses, especially if the patient presents with adrenal insufficiency. PMID- 29344030 TI - Optimal Cutoff Points for Anthropometric Variables to Predict Insulin Resistance in Polycystic Ovary Syndrome. AB - Background: Insulin resistance (IR) is a major cardiometabolic risk factor in females with polycystic ovary syndrome (PCOS). The euglycemic clamp is the gold standard method to measure IR. However, considering the time and cost that it takes, surrogate markers of IR are now widely used. The current study aimed at evaluating the cutoff points of even less invasive anthropometric and body composition variables to predict IR in females with PCOS. Methods: The current cross sectional study selected 224 females with PCOS, using Rotterdam criteria, referred to reproductive endocrinology research center; 88 of which were diagnosed with insulin resistance. Receiver operating characteristics curve was used to explore the best cutoff values of each anthropometric and body composition measures. IR was defined as homeostasis model assessment formula greater or equal to 2.6: HOMA-IR = fasting insulin (mU/L) * fasting plasma glucose (mM/L)/22.5. Results: The highest area under the curve (0.751) was for the multiplication of waist circumference (WC) by body mass index (BMI), as a single index. The highest sensitivity and specificity were for body water (BW) percentage (82% for values greater than 32.85%) and WC (79% for values greater than 88 cm), respectively. Conclusions: It was concluded that there were simple anthropometric variables; e.g., WC * BMI, percentage of BW, and WC that could help to estimate IR in clinical settings especially when the gold standard or surrogate markers of IR were unavailable. PMID- 29344031 TI - Age-Period-Cohort Analysis of Obesity and Overweight in Iranian Children and Adolescents. AB - Background: To date, few studies looked upon obesity and overweight in children and adolescents through the 3 different temporal dimensions of age, period, and cohort. The current study aimed at evaluating the trends of these health issues among children under 19 years old using the age-period-cohort (APC) analysis. Methods: Data gathered through 5 cross sectional studies including 2 national health surveillance (1990 - 91 and 1999), and 3 CASPIAN surveys (2003, 2009, and 2011). Subjects were classified by their body mass index (BMI) into 3 groups of normal (BMI < 85th percentile), overweight-obese (85th percentile < BMI < 95th percentile), and obese (95th percentile < BMI). Intrinsic estimator method was used to analyze the effects of age, period, and birth cohort on obesity and overweight among the subjects. Results: A total of 80,698 children and adolescents under 19 years old, including 40,419 (50.09%) males and 40,279 (49.91%) females, were evaluated. The prevalence of obesity decreased progressively by age in males and females with minor discrepancies. It increased from 1990 to 2009 in both genders, but from that point on remained quite constant in males and dropped significantly in females. The prevalence of obesity was steady in earlier birth cohorts, but increased significantly after the birth cohorts from 1986 to 1990. Conclusions: Environmental factors and social stresses during neonatal and infantile periods (birth cohort effect) along with other variables influencing the children later in their lives (period effect) affect the prevalence of overweight and obesity substantially. Moreover, a decrease in the prevalence of obesity and overweight was observed by age increase (age effect). PMID- 29344032 TI - Neck Circumference Percentiles of Iranian Children and Adolescents: The Weight Disorders Survey of CASPIAN IV Study. AB - Background: Neck circumference (NC), emerging as a key morphological index for pediatric obesity, is associated with obesity- and overweight-related detrimental conditions in children. In this study, we aimed to provide the age- and sex specific percentile reference values for neck circumference of the Iranian children and adolescents. Methods: We used the data gathered through the weight disorders survey of CASPIAN IV study conducted in 2011 - 2012 in Iran, including a total of 21954 Iranian children and adolescents, composed of 10750 girls and 11204 boys, aged 7 - 18 years old. We presented the interval of NC percentile in three age groups of 7 - 10 years, 11 - 14 years, and 15 - 18 years. Finally, age specific nomograms of NC for both genders in the Iranian and Canadian populations were compared. Results: The intervals of 90th percentile of NC for boys in the three periods of school age (7 - 10 years), pre-adolescence (11 - 14 years), and adolescence (15 - 18 years) were 24.2 - 30.0 cm, 26.6 - 33.2 cm, and 30.1 - 38.5 cm, respectively. These intervals for girls were 23.7 - 30.1 cm, 26.5 - 33.7 cm, and 28.5 - 36.0 cm, respectively. NC increased with age in both boys and girls and its variability showed an increasing trend with age. Conclusions: We demonstrated for the first time the NC reference values for the Iranian children and adolescents aged 7 - 18 years old. Considering the significant differences between our national NC references and the values reported from the Canadian population, it seems logical to use these national percentiles not only for epidemiologic studies but also for routine clinical examinations. PMID- 29344033 TI - Investigating the Prevalence of Low Bone Mass in Children of Southern Iran and Its Associated Factors. AB - Background: Improving peak bone mass and bone strength in the first years of life and enhancing it during young adulthood could prevent osteoporosis and fractures in the last years of life. We evaluated the prevalence of low bone mass in the lumbar and femoral neck and its associated factors in southern Iranian children. Methods: This is a cross-sectional study on healthy Iranian children aged 9 - 18 years old during 2011 - 2012. Dual energy X-ray absorptiometry (DEXA) was used for measuring bone mineral density (BMD). BMD Z-score <= -2 was considered as low. Anthropometric data, physical activity, sun exposure, puberty, and mineral biochemical parameters were assessed. Data were analyzed using SPSS v.15. Results: 477 normal children, including 236 (49.5%) girls and 241 (50.5%) boys, aged 13.8 +/- 2.7 years were enrolled. Prevalence of low bone mass (LBM) in the femoral and lumbar region was 10.7% and 18.7%, respectively. The prevalence of LBM in femur of girls is twice more than boys. Fat mass index, BMI Z-score, and physical activity were associated with lumbar low bone mass. BMI Z-score and physical activity were associated with femoral low bone mass. Conclusions: High prevalence of low bone mineral density in children 9 to 18 years in south of the country is concerned and is needed to plan for prevention and treatment. BMI-Z score, fat mass index, and physical activity were the 3 most important preventive factors in developing low bone mass in children. PMID- 29344034 TI - Socio-Demographic Determinants of Health-Related Quality of Life in Tehran Lipid and Glucose Study (TLGS). AB - Background: Health-related quality of life (HRQOL) is a multi-dimensional concept that is affected by different variables. A large body of evidence shows that socio-demographic factors have a significant influence on HRQOL. When considering differences in cultural contexts and social values of various countries and the lack of evidence regarding socio-demographic determinants of HRQOL among the Iranian general population, it is important to verify the main socio-demographic determinants of HRQOL in an urban Iranian population. Objectives: This study aimed to explore socio-demographic factors associated with HRQOL and to ascertain the determinants of poor HRQOL in participants of the Tehran lipid and glucose study (TLGS). Methods: The participants included 3491 adults, aged >= 20 years, who had participated in the TLGS. To obtain socio-demographic and HRQOL information, participants were interviewed by trained interviewers. Mean HRQOL scores were compared using the student's t test and analysis of variance (ANOVA). To determine significant determinants of poor HRQOL, multivariate logistic regression analysis was performed. Results: Mean ages of males and females were 47.7 +/- 15.6 and 47.8 +/- 14.2 years, respectively and 58.6% of participants were male. Males had significantly higher scores compared to females in both the physical and mental domains of HRQOL (P < 0.001). In males, significant determinants of poor physical HRQOL were older age, being married, being unemployed yet having other sources of income, having literacy levels below high school diploma, and having chronic diseases (P < 0.05). In females, however older age and being housewives were significant determinants of poor physical HRQOL (P < 0.05). In addition, significant determinants of poor mental HRQOL were younger age and being single or divorced/widowed in males and younger age and being illiterate as well as having literacy levels below high school diploma in females (P < 0.05). Conclusions: Current findings highlight the importance of socio demographic determinants of HRQOL in both genders, specifically in the physical domain, and demonstrate their roles to be more prominent in males. These findings highlight gender-specific associations between socio-demographic factors and various aspects of HRQOL among the TLGS population, which could be applied in future research focusing on non-communicable diseases and planning health promotion programs. PMID- 29344035 TI - Hypercalcaemic Pancreatitis, Adrenal Insufficiency, Autoimmune Thyroiditis and Diabetes Mellitus in a girl with Probable Sarcoidosis. AB - Introduction: Sarcoidosis is a multisystemic granulomatous disease with diverse and often non-specific symptoms during childhood. The clinical manifestations sometimes include endocrinopathies related to sarcoid infiltration of various endocrine organs, but more commonly due to the associated autoimmune endocrine disorders. There are only a few reports of multiple autoimmune and non-autoimmune endocrine problems occurring simultaneously in patients with sarcoidosis. We report a girl with probable sarcoidosis who also had Hashimoto's thyroiditis, Type 1 diabetes (T1D) and secondary adrenal insufficiency. Case Presentation: A 9 year-old girl previously diagnosed with autoimmune hypothyroidism and vitamin D deficiency, presented with hypercalcemic pancreatitis after initiating vitamin D supplementation that lead to a diagnosis of probable sarcoidosis. Secondary adrenal insufficiency and T1D were subsequently diagnosed. Her angiotensin converting enzyme levels on 2 occasions were 106 and 135 nmol/mL/min (normal range 10 - 43). All investigations conducted to exclude several infectious and malignant conditions that may mimic sarcoidosis were negative. The patient showed a good response to treatment with hydrocortisone, levothyroxine, insulin and methotrexate. Conclusions: To our knowledge, ours is the youngest ever patient reported in the literature with sarcoidosis to develop multiple autoimmune and non-autoimmune endocrinopathies. PMID- 29344037 TI - The Effects of Ginger on Fasting Blood Sugar, Hemoglobin A1c, and Lipid Profiles in Patients with Type 2 Diabetes. AB - Background: Lipid and glycemic abnormalities are prevalent in diabetes leading to long term complications. Use of safe and natural foods instead of medications is now considered by many scientists. Objectives: This study aimed at determining the effect of ginger on lipid and glucose levels of patients with type 2 diabetes mellitus. Methods: In a double-blind placebo-controlled trial, 50 patients with type 2 diabetes were randomly allocated to 2 groups of intervention (n = 25) and placebo (n = 25). Each patient received 2000 mg per day of ginger supplements or placebo for 10 weeks. Serum levels of fasting blood sugar (FBS), total cholesterol (TC), triacylglycerol (TG), low density lipoprotein cholesterol (LDL C), high density lipoprotein cholesterol (HDL-C), and glycosylated hemoglobin (HbA1C) were analyzed. Daily dietary intakes and anthropometric parameters were also determined. Results: Data from 45 patients were analyzed (23 patients in the ginger group and 22 patients in the control group) at the end of the study. Ginger consumption significantly reduced serum levels of fasting blood glucose ( 26.30 +/- 35.27 vs. 11.91 +/- 38.58 mg/dl; P = 0.001) and hemoglobin A1C (-0.38 +/- 0.35 vs. 0.22 +/- 0.29 %; P < 0.0001) compared to the placebo group. Ginger consumption also reduced the ratio of LDL-C/HDL-C (2.64 +/- 0.85 vs. 2.35 +/- 0.8; P = 0.009). However, there was no significant change in serum concentrations of triglycerides, total cholesterol, LDL-C, and HDL-C due to the ginger supplements. Conclusions: The current results showed that ginger could reduce serum levels of fasting blood glucose and hemoglobin A1C in patients with diabetes. PMID- 29344036 TI - Primordial and Primary Preventions of Thyroid Disease. AB - Background: Primordial and primary preventions of thyroid diseases are concerned with avoiding the appearance of risk factors, delaying the progression to overt disease, and minimizing the impact of illness. Summary: Using related key words, 446 articles related to primordial and primary, preventions of thyroid diseases published between 2001-2015 were evaluated, categorized and analyzed. Prevention and elimination of iodine deficiency are major steps that have been successfully achieved and maintained in many countries of the world in last 2 decades. Recent investigations related to the effect of cigarette smoking, alcohol consumption, and autoimmunity in the prevention of thyroid disorders have been reviewed. Conclusions: The cornerstone for successful prevention of thyroid disease entails timely implementation of its primordial and primary preventions, which must be highly prioritized in related health strategies by health authorities. PMID- 29344038 TI - An Evaluation of Acupressure on the Sanyinjiao (SP6) and Hugo (LI4) Points on the Pain Severity and Length of Labor: A Systematic Review and Meta-analysis Study. AB - Background: In this study, the effects of SP6 and LI4 acupressure on the pain severity and length of labor are examined. Materials and Methods: This systematic review and meta-analysis study was performed on articles published in 2004-2015. The articles, published in the English and Farsi languages, related to the effects of acupressure on the SP6 and LI4 points on the length and pain severity of labor. Data were collected by searching medical databases, including PubMed, ISI, MagIran, Google Scholar, Iran Medex, SID, Irandoc, and EMBASE, for relevant material. Results: Women who received SP6 acupressure experienced less pain immediately after the intervention [-0.56, 95% confidence interval (CI): -0.77, 0.36] than women in the touch group and exhibited decrease in the length of labor (-0.99, 95% CI: -1.39, -0.39), the active phase (0.95, 95% CI: -1.30, -0.61), and the second stage of labor (-0.39, 95% CI: -0.74, -0.03). Women who received LI4 acupressure experienced less pain immediately after the intervention (-0.94, 95%, CI: -1.36, -0.53) than women in the touch group and exhibited shorter active phase (-0.91, 95%, CI: -1.18, -0.63) and second stage of labor (-0.55, 95%, CI: 0.95, -0.15) lengths. Conclusions: The use of SP6 and LI4 acupressure shows promise as a method for managing the length and pain severity of labor, but further study is required to establish its effectiveness along with other pharmacological and nonpharmacological methods. PMID- 29344039 TI - The Effect of Auriculotherapy on the Stress and the Outcomes of Assistant Reproductive Technologies in Infertile Women. AB - Background: Infertility means failure to achieve pregnancy after one year of regular unprotected sexual intercourse. Infertile women may experience severe stress and depression. Numerous studies have indicated that auriculotherapy could reduce stress. Thus, the aim of the present study was to determine the effect of auriculotherapy on the stress and the outcome assisted reproductive technology in infertile women. Materials and Methods: The present study was a clinical trial that was conducted on 56 infertile women aged 20-45, who were assigned into two groups of intervention and control, from November 2014 to November 2015. The control group only received the routine treatments, while the intervention group, in addition to their routine treatment, received auriculotherapy for 8-10 sessions during menstrual cycle. Both groups completed Newton's Fertility Problem Inventory in three stages. The datasets collected for the study were analyzed using independent t-test, repeated-measures analysis of variance, and Chi-square test. Results: The mean score of stress in the intervention group decreased significantly, compared to the control group prior to the embryo transfer and pregnancy test stages. Although insignificant, the rate of pregnancy in the intervention group was higher than the control group. There was a significant increase in the rate of clinical pregnancy in the intervention group, compared to the control. Conclusions: The results indicated that auriculotherapy might be effective in reducing stress and improving the outcome of assisted reproductive treatment. PMID- 29344040 TI - Health Journalism: Health Reporting Status and Challenges. AB - Background: Media play crucial role in disseminating health information. Due to the importance of accurate health news reports, and the national need to professionalism in health journalism, this study aimed to investigate the characteristics of health journalists, and health reporting status and the challenges involved. Materials and Methods: Using consensus sampling, this descriptive cross-sectional study was conducted on all health news reporters in Isfahan (34 journalists) in 2015-2016. Data collection was done via a researcher made questionnaire. Content validity of the questionnaire was determined by qualitative method and based on the opinions of six experts. The test-retest reliability coefficient was 98.0. Data analysis was done by Statistical Package for the Social Sciences, version 16 and descriptive statistics and content analysis were used for analyzing the responses to two open questions. Results: Among 34 journalists, 56% were women and 44% men; the majority of journalists (65%) had no specialized training on health reporting, 35% of journalists were not able to understand the health issues, and the knowledge of medical terminology in 59% of them was moderate to low. The most important required skill for reporters was the ability to interpret medical research reports (88%), 97% were eager to participate in specialized health education. Conclusions: Our study showed that health journalists lacked knowledge and specialized training for dissemination of health news. This has brought about serious challenges. Thus, development and implementation of training courses in close collaboration with educational department of the Ministry of Health and news programs professionals at Islamic Republic of Iran Broadcasting is highly recommended. PMID- 29344041 TI - Impact of Nutrition Education in Improving Dietary Pattern During Pregnancy Based on Pender's Health Promotion Model: A Randomized Clinical Trial. AB - Background: Different types of nutrients in adequate amounts are required to meet the increased demands of the mother and the developing fetus. Therefore, we examined the impact of nutrition education on the number of food servings per day. Materials and Methods: Pregnant mothers were recruited to a prospective, randomized clinical trial from May to September, 2016. At 6-10 weeks of gestation, the participants were randomly divided into the intervention (n = 96) or the control group (n = 96), and were followed-up until the end of pregnancy. Each woman in the experimental group met the study nutritionist at the time of enrollment and an individualized nutrition plan was developed. In addition, the nutrition education based on Pender's Health Promotion Model (HPM) was designed, including three 45-60 min training sessions in 6-10, 18, and 26 weeks of pregnancy. The participants' usual food intake using a three-day dietary record was assessed at 6-10 weeks and 34-36 weeks of gestation. Results: The mean scores of the perceived benefits, self-efficacy, activity-related affect, interpersonal influences (husband support), and commitment to action increased while the competing demand scores decreased in the interventional group compared with the control group. The mean standard deviation (SD) of food portions from grain [10.40 (1.96) versus 12.70 (1.93) in the control group], vegetable [3.88 (1.33) versus 2.96 (0.91)], fruit [4.02 (0.05) versus 3.95 (0.91)], dairy [2.33 (0.68) versus 2.11 (0.45)], and meat [3.17 (0.68) versus 2.96 (0.67)] were improved in the experimental group. Conclusions: Pender's HPM for nutrition education is effective based on the compliance of pregnant women to the dietary guideline and the food guide pyramid. PMID- 29344042 TI - Effect of Telephone Follow-up by Nurses on Self-care in Children with Diabetes. AB - Background: Diabetes is a serious chronic disease during childhood. Because of the chronic nature of the disease, self-care is necessary. Education alone is not effective in providing care. Misunderstanding by the patients regarding diabetes during the training programs render telephone follow-up after training essential. Materials and Methods: This quasi-experimental study with two groups (experimental and control) was conducted in two phases in 2014. The study population consisted of 70 children of 10-18 years of age with type I diabetes (35 patients in the experimental group and 35 in the control group). The participants were randomly selected from the patients referring to the Sedigheh Tahereh Diabetic Research and Treatment Center in Isfahan, Iran. Data were collected using a researcher-made questionnaire on self-care and a glycosylated hemoglobin recording form. The experimental group received 12 weeks of telephone follow-up training by the center, whereas the control group received no follow up. Results: The results showed that, after intervention, the total mean score of self-care in all aspects of diabetes care for children was significantly higher in the experimental group (p < 0.001). In addition, a statistically significant difference was observed between the experimental and control groups in terms of mean glycosylated hemoglobin after the intervention (p = 0.030). Conclusions: It can be concluded that telephone follow-up by a nurse can improve total self-care and glycosylated hemoglobin in patients with type I diabetes. PMID- 29344043 TI - Assessment of the Midwifery Students' Clinical Competency Before Internship Program in the Field Based on the Objective Structured Clinical Examination. AB - Background: One of the important goals of clinical education is to promote the level of students' clinical skills. About 50% of the midwifery education is focused on clinical education, which has a great importance in shaping the professional skills of the students. The aim of this study was to determine the ability of students in some practical skills, before internship program in the field, using objective structured clinical examination (OSCE). Materials and Methods: This research was a descriptive cross-sectional study with a single stage, multivariate prospective design. Twenty-seven midwifery students from the Isfahan University of Medical Sciences who were in their sixth semester were selected by convenience sampling during the second semester of 2015-2016 educational year. OSCE was executed at skill laboratories in 8 stations during one day, and researcher-made checklists were used; their content and face validity were approved and their reliability was confirmed by a Cronbach's alpha coefficient of 0.97. Data analysis was performed by SPSS19. Results: Results showed that the level of students' skills at pelvic exam station was 39.97%, at bladder catheterization was 66.92%, at Leopold was 42.7%, at fetal ECG interpretation was 50.49%, at physical examination was 21.30%, at fetal resuscitation was 48.81%, at breast examination was 56.32%, and at answering the questions was 23.49%. Conclusions: Results show that students gained a score of less than 50% in most skills. Therefore, they are not efficiently skilled for these essential clinical skills. Nonetheless, these procedures need the minimum skills that are required from students after graduation and before entering the working environment in hospitals and health centers. Therefore, more attention should be paid to these skills while planning internship programs before students enter the field. Also, more attention is required while teachers teach these skills and students are supposed to regard their weaknesses in these skills. PMID- 29344044 TI - Ethical Challenges of Embryo Donation in Embryo Donors and Recipients. AB - Background: Embryo donation, as one of the novel assisted reproductive technologies (ART), has remained a controversial issue. This is due to this methods' need for individuals from outside the family circle. Their presence can cause many ethical issues and complicate the designing and planning of the embryo donation process. The present study was conducted with the aim to assess the ethical challenges of embryo donation from the view point of embryo donors and recipients. Material and Methods: This descriptive, cross-sectional study was conducted on 192 couples (96 embryo donators and 96 embryo recipients) referring to Isfahan Fertility and Infertility Center and Royan Institute, Iran. The subjects were selected through convenience sampling. The data collection tool was the researcher-made Ethical Challenges Questionnaire. Data were analyzed in SPSS software. Results: Embryo donors and recipients expresses the most important ethical challenges of embryo donation in the principle of justice (70.20%) and respect for autonomy (42.57%), respectively. Conclusions: The four ethical principles are important in the view of embryo donors and recipients; however, they highlighted the importance of the principle of respect for autonomy considering the existing barriers in the services of infertility centers. Legislators and relevant authorities must take measures toward the development of guidelines for this treatment method in the framework of ethics principles and incorporate all four principles independently. PMID- 29344045 TI - Predicting Nurses' Psychological Safety Based on the Forgiveness Skill. AB - Background: Forgiveness, as an intentional denial of your right of anger and aversion from a harmful deed, is related to many psychological processes of human which results in more psychological safety for people. The present study aimed to predict the psychological safety of nurses through different dimensions of forgiveness skill. Materials and Methods: This correlational study was conducted on 170 nurses working in Kerman hospitals during 2016-2017 who were selected based on convenience random sampling. Edmondson psychological safety and Thompson Heartland forgiveness scale were used for data collection. Data were analyzed through Pearson correlation coefficient and multiple regression model. Results: TThe results indicated that psychological safety has a significant relationship with self-forgiveness (p = 0.0001) and other-forgiveness (p = 0.04). Further, only self-forgiveness could significantly predict 0.07 of psychological safety variance (p = 0.003). Conclusions: Self-forgiveness skill can improve the nurses' psychological safety and reduce the harms caused by job pressures by reinforcing positive psychological factors. It is recommended to teach forgiveness skill through holding in-service classes to staff and study the relationship between psychological safety with other social life skills among nurses. PMID- 29344046 TI - Relationship between Spiritual Intelligence with Happiness and Fear of Childbirth in Iranian Pregnant Women. AB - Background: Spiritual intelligence is a person's ability to feel a connection to a higher power and a sacred entity. With regard to its relation with happiness, it can have an important effect on the mental health of pregnant women. Therefore, this study aimed to investigate the relationship between spiritual intelligence and happiness and fear of childbirth in pregnant women. Materials and Methods: This cross-sectional study was conducted on 245 low-risk pregnant women from June till September 2015. Using random cluster sampling method, the subjects were selected among the women who referred to health care centers in Shahroud (Northeast of Iran). After obtaining informed consent, the researchers evaluated the spiritual intelligence, happiness, and fear of childbirth. Data were analyzed using STATA12 and Chi-square test, t-test, analysis of variance, and Strucrural Equation Model. Results: In this study, the spiritual intelligence mean (SD) score was 64.43(16.51). Comparison between mothers with and without fear of childbirth showed there was a significant difference between the spiritual intelligence score and happiness mean scores in these two groups. There is a negative correlation between spiritual intelligence and happiness with fear of childbirth (-0.73 and -0.69, respectively). Conclusions: Increased level of spiritual intelligence in pregnant women can lead to an increase in their happiness and reduce their fear of childbirth. The fear of childbirth can be prevented via trainings to pregnant women about the components of spiritual intelligence; moreover, training the techniques to achieve more happiness can help mothers to reduce their fear of childbirth and hence promote natural childbirth. PMID- 29344047 TI - A Comparative Study of Shift Work Effects and Injuries among Nurses Working in Rotating Night and Day Shifts in a Tertiary Care Hospital of North India. AB - Background: Shift work can have an impact on the physical and psychological well being of the healthcare worker, affecting patients as well as their own safety at the workplace. This study was conducted to compare the health outcomes and injuries, along with associated risk factors between the nurses working in rotating night shift (RNS) as compared to day shift (DS) only. Materials and Methods: It was a cross-sectional study conducted from June to November 2016 in a tertiary care hospital of Delhi. It involved 275 nurses working in RNS and 275 nurses from DS of various departments, selected through simple random sampling. Standard Shift Work Index Questionnaire (SSI) was used as the study instrument, with selected variables (according to objectives of the study). Data were analyzed using descriptive statistics, Chi-square, t-test, and multivariate regression. Results: Female nurses had more sleep disturbance, fatigue, and poor psychological health. Working on a contractual basis, RNS, and living outside the hospital campus were associated with higher odds of having needle stick injury (NSI). The nurses working in RNSs were found to have significantly lower mean scores in job satisfaction (p = 0.04), sleep (p < 0.001), and psychological well being (p = 0.047) as compared to DS workers. Conclusions: Health outcomes among nurses working in RNSs call for the interventions, focused on various factors which can be modified to provide supportive and safer working environment. PMID- 29344048 TI - The Impact of Normal Saline on the Incidence of Exposure Keratopathy in Patients Hospitalized in Intensive Care Units. AB - Background: Patients in the intensive care unit (ICU) have impaired ocular protective mechanisms that lead to an increased risk of ocular surface diseases including exposure keratopathy (EK). This study was designed to evaluate the effect of normal saline (NS) on the incidence and severity of EK in critically ill patients. Materials and Methods: This single-blind randomized controlled trial was conducted on 50 patients admitted to ICUs. The participants were selected through purposive sampling. One eye of each patient, randomly was allocated to intervention group (standard care with NS) and the other eye to control group (standard care). In each patient, one eye (control group) randomly received standard care and the other eye (intervention group) received NS every 6 h in addition to standard care. The presence and severity of keratopathy was assessed daily until day 7 of hospitalization using fluorescein and an ophthalmoscope with cobalt blue filter. Chi-square test was used for statistical analysis in SPSS software. Results: Before the study ( first day) there were no statistically significant differences in the incidence and severity of EK between groups. Although, the incidence and severity of EK after the study (7th day) was higher in the intervention group compared to the control group, their differences were not statistically significant. Although, the incidence and severity of EK, from the 1st day until the 7th, increased within both groups, this increase was statistically significant only in the intervention (NS) group. Conclusions: The use of NS as eye care in patients hospitalized in ICUs can increase the incidence and severity of EK and is not recommended. PMID- 29344049 TI - A Structural Equation Model of Self-care Activities in Diabetic Elderly Patients. AB - Background: Self-care is a valuable strategy to improve health and reduce events of hospitalization and the duration of hospital stay in elderly diabetic patients. This study aimed to examine the model of self-care behaviors in elderly diabetic patients. Materials and Methods: A survey was conducted among 209 diabetic elderly patients who were admitted in three hospitals affiliated with the Isfahan University of Medical Sciences, Iran. Convenience sampling method was used to recruit the participants. Depression, anxiety, stress, and perceived social support were considered as predicting exogenous variables and elderly patients' self-care activities were treated as endogenous variables. The data were collected by a four-part questionnaire consisting of demographic and health related characteristics; 21-item depression anxiety stress scale, multidimensional scale of perceived social support, and Diabetes Self-care Activities scale. Structural equation modelling by Statistical Package for the Social Sciences (SPSS) version 16 and Analysis of Moment Structures-7 (AMOS) software was applied for data analysis. Results: Mean (standard deviation) of depression, anxiety, stress, perceived social support, and self-care activities of participants were 14.29 (4.3), 13.62 (3.74), 16.83 (4.23), 57.33 (14.19), and 44.56 (13.77), respectively. The results showed that the overall model fitted the data (chi2/df = 3.8, goodness-of-fit index (GFI) = 0.52, incremental fit index (IFI) = 0.48, and root mean square error of approximation (RMSEA) = 0.14). Three out of four variables (i.e., perceived social support, anxiety, and depression) significantly predicted adherence to self-care behaviors among diabetic elderly patients (p < 0.05). Conclusions: The perceived social support, anxiety, and depression were identified as key constructs which need to be taken into account and well managed by health care professionals to enhance adherence to self-care activities in diabetic elderly patients. PMID- 29344050 TI - The Lived Experiences of Becoming First-line Nurse Managers: A Phenomenological Study. AB - Background: Designated roles of first-line nurse managers (FLNMs) are very complex, this study aimed to develop a deeper understanding of their meaningful lived experiences. Materials and Methods: This study employed a phenomenological study using semi-structured interviews with FLNMs (n = 7) at the General Hospital of Belitung, Indonesia. The data analysis was thematic. Results: Four major themes were identified from the analysis of textual data: Feeling extraordinary, the inability to do, desire to leave the unit, and influenced by work motivation. The findings of this study revealed the positive and negative experiences of becoming FLNMs. The positive experiences were related to the feeling challenged and extraordinary to deal with many roles in management and leadership. The negative experiences included personal conflict related to the desire to leave the unit, and feeling unable to manage. However, the works of FLNMs were influenced by internal and external motivation. Conclusions: This study better informs nurse executives to develop competence and performance of FLNMs, and keep their motivation by revising performance appraisal system. PMID- 29344051 TI - Experiences of Fathers with Inpatient Premature Neonates: Phenomenological Interpretative Analysis. AB - Background: Birth and hospitalization of premature neonates create enormous challenges for the family with serious impacts on parents' mental and emotional health. The present study was designed to explore the experiences of fathers with premature neonates hospitalized in a neonatal intensive care unit (NICU). Materials and Methods: In this interpretative phenomenological study, data were collected using in-depth interviews guided with a semi-structured questionnaire and analyzed by interpretative phenomenological analysis. Totally seven interviews were conducted with six participants. Results: The mean age of the fathers was 32 (23-42) years, and all of the fathers lived with their wives. Experiences of the fathers were categorized into 13 subordinate and three superordinate themes: "abandonment and helplessness" (lack of financial support, lack of informational support, and indignation and distrust toward the hospital staffs); "anxiety and confusion" (family disruption, shock due to the premature birth of the neonate, uncertainty, the loss of wishes, feeling of guilt and blame, and occupational disruption); and "development and self-actualization" (emotional development, spiritual development, independence and self-efficacy, and responsibility). Conclusions: The present study showed that the fathers with premature neonates hospitalized in NICU encounter both positive (development and self-actualization) and negative experiences (lack of financial and informational supports, distrusting toward the hospital staffs, family disruption, and occupational disruption). Planning to manage adverse experiences can help fathers to cope with this situation. PMID- 29344053 TI - An overview of exposure to ethanol-containing substances and ethanol intoxication in children based on three illustrated cases. AB - Alcohol addiction and intoxication are major health problems worldwide. Acute alcohol intoxication is well reported in adults and adolescents but less frequently reported in children of younger ages. We report three anonymized cases of pediatric ethanol exposure and illustrate the different mechanisms of intoxication. In all cases, a focused history is the key to prompt diagnosis and timely management. Physicians should be aware of this potential poison in children presented with acute confusional or encephalopathic state. In contrast, neonates with ethanol intoxication may present with nonspecific gastrointestinal symptomatology. Urgent exclusion of sepsis, electrolyte imbalance, drug intoxication, and surgical abdominal condition is critical. Using these illustrated cases, we performed a narrative literature review on issues of exposure to ethanol-containing substances and ethanol intoxication in children. In conclusion, a high level of suspicion and interrogation on ethanol or substance use are essential particularly in the lactating mother for an accurate and timely diagnosis of ethanol intoxication to be made. PMID- 29344052 TI - Manidipine: an antihypertensive drug with positive effects on metabolic parameters and adrenergic tone in patients with diabetes. AB - Antihypertensive treatment of patients with diabetes should include those drugs with a positive effect on metabolic parameters. Most patients with diabetes require at least two antihypertensive agents. Combining a dihydropyridine calcium channel blocker with a renin-angiotensin-aldosterone system inhibitor is a rational approach. However, not all dihydropyridines are equal with respect to their effects on metabolic parameters. Thus, manidipine exerts a positive effect on insulin resistance. However, this effect has not been observed with amlodipine. On the other hand, the excessive activation of sympathetic nervous system has been related with an increase of insulin resistance, pulse pressure, and ankle edema rates. Compared with amlodipine, manidipine activates sympathetic nervous system to a lesser extent. As a result, treatment with manidipine represents a good option in hypertensive patients with diabetes. PMID- 29344054 TI - The carnitine status does not affect the contractile and metabolic phenotype of skeletal muscle in pigs. AB - Background: Recently, supplementation of L-carnitine to obese rats was found to improve the carnitine status and to counteract an obesity-induced muscle fiber transition from type I to type II. However, it has not been resolved if the change of muscle fiber distribution induced in obese rats and the restoration of the "normal" muscle fiber distribution, which is found in lean rats, in obese rats by supplemental L-carnitine is causally linked with the carnitine status. In the present study we hypothesized that fiber type distribution in skeletal muscle is dependent on carnitine status. Methods: To test this, an experiment with 48 piglets which were randomly allocated to four groups (n = 12) was performed. All piglets were given orally either 60 mg sodium bicarbonate/kg body weight (group CON), 20 mg L-carnitine and 60 mg sodium bicarbonate/kg body weight (group CARN), 30 mg pivalate (dissolved in sodium bicarbonate)/kg body weight (group PIV) or 20 mg L-carnitine and 30 mg pivalate/kg body weight (group CARN + PIV) each day for a period of 4 weeks. Results: Concentrations of total carnitine in plasma, liver and longissimus dorsi and biceps femoris muscles were 2.0-2.7 fold higher in group CARN than in group CON, whereas these concentrations were 1.9-2.5-fold lower in group PIV than in group CON. The concentrations of total carnitine in these tissues did not statistically differ between group CARN + PIV and group CON. Fiber type distribution of longissimus dorsi and biceps femoris muscles, mRNA and protein levels of molecular regulators of fiber distribution in longissimus dorsi and biceps femoris muscles and mRNA levels of genes reflecting the metabolic phenotype of longissimus dorsi and biceps femoris muscles did not differ between groups. Conclusion: Changes in the systemic carnitine status and the muscle carnitine concentration induced by either supplementing L-carnitine or administering pivalate have no impact on the contractile and metabolic phenotype of skeletal muscles in pigs. PMID- 29344055 TI - Non-organic Vision Loss in the Afghanistan and Iraq Conflicts. AB - Non-organic visual loss (NOVL), defined as a decrease in visual acuity or field without an identifiable organic cause, can be challenging to diagnose, especially in patients whose NOVL is superimposed on some component of true organic pathology. Exposure to combat puts soldiers at risk of emotional distress and physical trauma, which can contribute to the development of NOVL with conversion disorder or malingering. This case series describes six patients with NOVL who sustained ocular or non-ocular injuries while serving in combat operations in Iraq and Afghanistan, and highlights diagnostic pearls and components of inter disciplinary management in the unique military context. PMID- 29344056 TI - Effects of Contrast Sensitivity on Colour Vision Testing. AB - This study analyses how contrast sensitivity loss affects colour vision (CV) testing. Eleven participants were scored while cycling through randomly arranged pictures of CV tests with varying levels of contrast changes applied. Hardy-Rand Rittler (HRR) scores declined significantly at each successive decrease in contrast level after the highest setting (p < 0.004). HRR scores were also lower than those for Ishihara and Farnsworth D-15 tests at two contrast settings (p < 0.01). Contrast changes had the greatest impact on HRR scores, indicating that this test may not be an accurate reflection of CV in patients with contrast sensitivity loss. PMID- 29344057 TI - Causes and Prognosis of Unilateral and Bilateral Optic Disc Swelling. AB - The authors reviewed 93 consecutive cases with optic disc swelling (ODS) to compare clinical manifestations and prognosis among the causes. Among unilateral ODS patients >=50 years old and without pain, anterior ischaemic optic neuropathy accounted for 87.5%. Furthermore, papilloedema (PE) presented unilateral ODS with an atrophic or hypoplastic disc in the opposite eye. Despite no differences for age and initial visual acuity between PE and pseudopapilloedema, the two main causes of bilateral ODS, some PE patients showed poor visual prognosis. Understanding differences in frequencies and clinical features of ODS related to cause and age group can help to accurately determine cause and predict outcome. PMID- 29344058 TI - An Estimation of the Risk of Pseudotumor Cerebri among Users of the Levonorgestrel Intrauterine Device. AB - Because of a previous association of pseudotumor cerebri (PTC) with levonorgestrel, we wished to evaluate the use of levonorgestrel-eluting intrauterine devices ("levonorgestrel intrauterine systems", LNG-IUS) in our University of Utah and Rigshospitalet PTC patients. In our retrospective series, PTC prevalence was approximately 0.18% and 0.15% in the LNG-IUS population versus 0.02% and 0.04% in the non-LNG-IUS population (Utah and Rigshospitalet, respectively), with no significant differences in PTC signs and symptoms among the two groups. Our investigation suggests that women with an LNG-IUS may have increased risk of developing PTC but does not suggest an LNG-IUS can cause PTC. PMID- 29344059 TI - Retinitis Pigmentosa Sine Pigmento Mimicking a Chiasm Disease. AB - A 75-year-old woman presented to her ophthalmologist complaining of visual loss for several years. The ophthalmic examination was remarkable for a bitemporal visual field defect. Magnetic resonance imaging (MRI) scan of the brain was normal without evidence of chiasm compression. Neuro-ophthalmic examination was consistent with a retinal rather than a chiasmal disease. Retinal multimodal imaging helped in the correct diagnosis of retinitis pigmentosa, later confirmed by genetic testing. PMID- 29344060 TI - Neuro-Ophthalmic Presentation of Neuro-Sweet Disease. AB - Acute febrile neutrophilic dermatosis (Sweet syndrome) is a systemic inflammatory condition usually associated with autoimmune or neoplastic processes and characterised by inflammatory dermatologic lesions such as erythematous plaques and papules associated with fever and leukocytosis. Neurological and ophthalmological involvement is rare. The authors describe an unusual case of Sweet syndrome associated with microscopic polyangiitis presenting with papilloedema, anterior uveitis, and skin rash. Years later, he developed acute posterior multifocal placoid pigment epitheliopathy. Treatment with immunosuppressive medications led to a relapsing remitting course with maximum benefit from use of steroids. The authors describe the difficulties in diagnosis and treatment of this rare case. PMID- 29344061 TI - Subacute Acrylamide Intoxication with Severe Visual Disturbance: A Case Report. AB - A 35-year-old man was admitted due to somnolence and progressive sensory-motor polyneuropathy, followed by severe visual impairment in both eyes after direct skin exposure to an acrylamide monomer solution. The results of an ophthalmological examination including central critical flicker fusion frequency and the decreased amplitude of action potentials observed in the visual evoked potential studies suggested that acrylamide intoxication resulted in neuronal degeneration in the optic pathways. Additional attention should be directed to the potential effect of acrylamide on the human visual system. PMID- 29344062 TI - Cystic Optic Chiasm Lesion: Atypical Magnetic Resonance Imaging Findings. AB - Intrinsic cystic lesions in the optic chiasm are an uncommon cause of bitemporal hemianopia compared with compressive lesions extrinsic to the chiasm. A 40-year old man presented with difficulty driving. Clinical assessment revealed a bitemporal hemianopia. Magnetic resonance imaging showed an unusual cystic appearance of the chiasm. The appearance was felt to be most likely secondary to previous infective or inflammatory disease, but biopsy was not undertaken given the very significant risk of further visual loss. PMID- 29344063 TI - Axonal Injury in the Lateral Geniculate Body: Radiological Diagnosis. AB - Damage to the lateral geniculate body by diffuse axonal injury in brain trauma is uncommon. The authors present the clinical case and in vivo fibre tractography using diffusion tensor magnetic resonance imaging of this lesion in a patient presenting with homonymous sectoranopia after a traumatic head injury. PMID- 29344064 TI - Occult Acute Macular Neuroretinopathy. AB - A 19-year-old Caucasian woman developed an upper respiratory infection, took a cold formulation containing 5 mg of phenylephrine, and developed a very rare and unusual form of acute macular neuroretinopathy (AMN) that could not be detected on fundoscopic examination, visual fields, nor electrophysiological testing. Spectral-domain optical coherence tomography (SD-OCT) revealed a lesion limited to the fovea. This case illustrates the value of SD-OCT, in light of otherwise normal testing, in a variant of AMN the authors call "occult AMN". PMID- 29344065 TI - Optociliary Shunt Vessels: Role in Diagnosis and Treatment of Atypical Pseudotumor Cerebri. AB - A 46-year-old man presented with severe visual loss and optic atrophy associated with optociliary shunt vessels. The diagnostic work-up revealed intracranial hypertension and cerebral venous sinus stenosis, with no evidence of previous thrombosis. In view of the severe visual dysfunction, both eyes were submitted to optic nerve sheath fenestration. After surgery, a regression of collateral vessels was observed in both eyes. PMID- 29344066 TI - Diagnostic Challenge: Sequential Unilateral Cranial Neuropathies Due to Perineural Spread of Carcinoma. AB - An 86-year old man developed sequential dysfunction of trigeminal (V1), facial, abducens, trigeminal (v2), oculomotor, and hypoglossal cranial nerves on the right over 20 months. Magnetic resonance imaging (MRI) showed a lesion in the right cavernous sinus. Although there was clinical suspicion that this was related to perineural spread of an extracranial tumour, a primary lesion was not discovered. Stereotactic biopsies of the intracranial lesion were non-diagnostic, and the patient succumbed to his tumour following a period of rapid growth. Postmortem examination showed the intracranial lesion to be a carcinoma with squamous features. This case highlights the challenges of diagnosis of intracranial perineural spread and the potential for transformation from indolent to aggressive tumour behaviour. PMID- 29344067 TI - Corrigendum. AB - [This corrects the article DOI: 10.1080/01658107.2016.1263343.]. PMID- 29344069 TI - Pituitary Ring Sign Plus Sphenoid Sinus Mucosal Thickening: Neuroimaging Signs of Pituitary Apoplexy. AB - Two magnetic resonance imaging (MRI) signs of pituitary apoplexy are the "pituitary ring sign" and "sphenoid sinus mucosal thickening". The occurrence of both these MRI signs together in patients with ischaemic pituitary apoplexy was investigated. A literature review searching the terms "pituitary ring sign" and "sphenoid sinus mucosal thickening" in the context of pituitary apoplexy from 1990 until present was performed. To be included in the study, each case had to have ischaemic pituitary apoplexy defined as acute expansion of a pituitary adenoma or, less commonly, in a non-adenomatous gland, from infarction without haemorrhage or very little haemorrhage and a T1-weighted MRI of the brain with contrast that displayed both "sphenoid sinus mucosal thickening" and a "pituitary ring sign" either on an actual study (the author's cases) or in a figure in an article from the literature that could be reviewed and clearly illustrate these two signs. Twelve cases of ischaemic pituitary apoplexy were found, all with MRI images that showed both of these signs. Ten cases from the literature (3 of which were published by this author) plus an additional 2 recently evaluated in our hospital, totalled the 12 cases. Thus, 5 of the total 12 cases were evaluated by this author. Of these 12 patients, both headache and visual loss were present in 5 patients, headache alone was indicated in 5 patients (10 of the 12 presented with headache), and no initial symptoms identified in 2 patients (incidentally found non-functioning pituitary adenomas on MRI). These findings indicate that each sign ("pituitary ring sign" and "sphenoid sinus mucosal thickening") may exist alone with or without pituitary apoplexy, yet both signs together in the appropriate clinical context is a strong predictor of pituitary apoplexy. PMID- 29344068 TI - Clinical versus Evidence-based Rehabilitation Options for Post-stroke Visual Impairment. AB - The aim of this study was to identify which treatments for post-stroke visual impairment have a supportive evidence base, and which are being used in practice without supportive evidence. A systematic review of the literature reporting on the available treatment options was compared against the visual treatments used in the Vision In Stroke (VIS) study. Treatments were identified for visual field, visual neglect, visual perception and ocular motility disorders. Visual scanning therapies for hemianopia and neglect have an established evidence base. However, a number, such as typoscopes and advice options, have limited detail of their effectiveness and require further research. PMID- 29344070 TI - Diffuse Colour Discrimination as Marker of Afferent Visual System Dysfunction in Amyotrophic Lateral Sclerosis. AB - Abnormalities of the inner and intermediate retinal structures in patients with amyotrophic lateral sclerosis (ALS) have been described using optical coherence tomography and histopathology. Colour vision is a potential marker of these structural changes. The purpose of this study is to test the hypothesis that colour vision impairment is associated with ALS. Monocular (right eye) colour vision was assessed in subjects with definite or probable ALS (n = 25, aged 50-80 years) and control (n = 21, aged 46-89 years) subjects with corrected near visual acuity of at least 20/40 using the L'Anthony D15 color test (desaturated), scored by c-index, a measure of diffuse colour discrimination. Of ALS subjects, 16/25 (64%) had impaired colour vision (c-index >1.8). Comparing with our normal subjects and accounting for age, 72% (n = 18) of ALS subjects had colour vision below the 50th percentile, 52% (n = 13) had colour vision below the 25th percentile, 24% (n = 6) had colour vision below the 10th percentile, and 8% (n = 2) had colour vision below the 2nd percentile. In multivariate models of ln(c index) and age, the intercept was higher and the slope was flatter in ALS subjects, suggesting that colour vision deficits are more prominent in younger ALS patients. Diffuse colour discrimination deficits are detected in ALS subjects at younger ages than in control subjects. Further study is needed to confirm these findings and to determine if the ALS colour discrimination abnormalities correlate with structural markers of retinal involvement and ALS disease severity. PMID- 29344071 TI - Acetazolamide: A New Treatment for Visual Vertigo. AB - Visual vertigo is a disorder characterised by symptoms of dizziness, vertigo, unsteadiness, disorientation, and general discomfort induced by visual triggers. It is currently treated with vestibular rehabilitation therapy, with no effective pharmacotherapy available for treatment-resistant cases. The objective of this study was to evaluate the efficacy of oral acetazolamide in improving symptoms of visual vertigo. A comparative case series of adult patients clinically diagnosed with visual vertigo was conducted from January 1992 to May 2015. Patients without a full neurologic or otorhinolaryngologic work-up, negative magnetic resonance imaging (MRI), and an organic cause for their symptoms were excluded. The identified patients were then contacted by phone to complete a voluntary symptom survey. Main outcome was the subjective reported percentage in symptom improvement. Secondary outcomes were subjective improvement by symptom triggers. The participants were retrospectively divided into three groups based on their treatment with acetazolamide: currently on acetazolamide, terminated acetazolamide, or never initiated acetazolamide. Fifty-seven patients met the inclusion criteria and were willing to complete the phone survey (19 currently on acetazolamide, 27 terminated acetazolamide, and 11 never initiated therapy). Overall symptomatic improvement was reported by 18 (94.7%) patients currently on acetazolamide, 18 (66.7 %) who terminated acetazolamide, and 5 (45.5%) who never initiated therapy, varying significantly by group (p = 0.0061). Greatest improvement was reported in symptoms triggered by being a passenger in a car. These results show that acetazolamide has a positive association with improvement of symptoms of visual vertigo. PMID- 29344072 TI - Bilateral Compressive Optic Neuropathy from Renal Osteodystrophy Caused by Branchio-oto-renal Syndrome Stabilised After Parathyroidectomy. AB - Renal osteodystrophy can cause calvarial hypertrophy and narrowing of the neural canals and foramina. Compressive optic neuropathy is extremely rare in renal osteodystrophy and was reported once only. The authors report bilateral, simultaneous compressive optic neuropathy secondary to renal osteodystrophy with features of uremic leontiasis ossea in chronic renal failure caused by branchio oto-renal syndrome. Because of the extensive calvarial hypertrophy and the surgical difficulties envisaged with optic canal decompression, conservative approach was pursued. The patient's visual acuity and fields improved after partial parathyroidectomy. Visual improvement may be explained by the arrest of renal osteodystrophy and reduced optic nerve compression after parathyroidectomy. PMID- 29344073 TI - Bilateral Non-arteritic Anterior Ischaemic Optic Neuropathy as the Presentation of Systemic Amyloidosis. AB - A 75-year-old hypertensive female with stable idiopathic intermediate uveitis presented with bilateral sequential optic neuropathy with optic disc swelling. The optic neuropathy in the first affected eye (right) was thought to be due to non-arteritic anterior ischaemic optic neuropathy (NAION). Asymptomatic left optic disc swelling was found at routine review 2 months later, and a diagnosis of giant cell arteritis (GCA) was sought. Temporal artery duplex ultrasound showed the "halo sign," but a subsequent temporal artery biopsy showed light chain (AL) amyloidosis with no signs of giant cell arteritis. In this case, bilateral sequential ischaemic optic neuropathy mimicking non-arteritic anterior ischaemic optic neuropathy was the presenting sign of systemic amyloidosis involving the temporal arteries. PMID- 29344074 TI - Proceedings of the 38th Annual Upper Midwest Neuro-Ophthalmology Group Meeting, July 28, 2017, Chicago, Illinois, USA. PMID- 29344075 TI - Reply to: "Bilateral Non-arteritic Anterior Ischaemic Optic Neuropathy as the Presentation of Systemic Amyloidosis". PMID- 29344076 TI - Response to Dr. Pellegrini Regarding Comments on "Bilateral Non-arteritic Anterior Ischaemic Optic Neuropathy as the Presentation of Systemic Amyloidosis". PMID- 29344078 TI - Application of the ICF based Norwegian function assessment scale to employees in Germany. AB - Background: At the interface of the occupational setting and rehabilitation, normative values for functional ability are desirable and worthwhile. The Norwegian Function Assessment Scale (NFAS) is a 39 item self-report instrument based on the International Classification of Functioning, Disability and Health (ICF). As the questionnaire was not used in a working population, we aimed to obtain functional levels of employees in Germany as measured through the NFAS. Methods: The NFAS was included in the Study on Mental Health at Work (S-MGA) 2011/12, a representative German survey of employees aged 31 to 60 years. For descriptive analyses, 95% confidence intervals were applied through bootstrap estimation to the skewed data of the NFAS (range from 1 = 'no difficulty' to 5 = 'could not do it'). The data were analysed by age decades, professional qualification, and by disabilities, congenital diseases and accidents, stratified by sex. Linear regression analyses were conducted to estimate adjusted effects of age, professional qualification, and health limitations. Results: The NFAS total score was 1.17 (95% CI = 1.15-1.17). Thirty-five percent of the employees' (1378 out of 3937 participants) reported the best possible functional ability (NFAS total score of 1.00). Managing and walking/standing were the NFAS' most affected domains with a score of 1.26 (95% CI = 1.23-1.27), respectively. The regression analysis confirmed more functional difficulties for elder employees, females, employees with low professional qualification, and for employees suffering from disability and accidents. Conclusions: The study presents normative values of functional ability for the workforce. The results are useful for score interpretation in rehabilitation and return-to-work processes. PMID- 29344079 TI - Factors associated with breastfeeding intent among mothers of newborn babies in Da Nang, Viet Nam. AB - Background: Breastfeeding is recognized as the single most cost-effective intervention to reduce child morbidity and mortality. However, few studies have explored perceived barriers to breastfeeding and factors associated with breastfeeding intent among mothers of newborn babies in Viet Nam. We conducted a study to assess breastfeeding initiation rates, intent to breastfeed exclusively for 6 months or more and perceived barriers to breastfeed among mothers of newborn babies in Da Nang, Viet Nam. Methods: We conducted a cross-sectional questionnaire survey of mothers in the postnatal wards of Da Nang Hospital for Women and Children in central Viet Nam from 10 February 2017 to 24 February 2017, following implementation of the World Health Organization (WHO) Essential Newborn Care (ENC) package. Results: Of 286 mothers surveyed, 259 (90.6%) initiated breastfeeding; 203/258 (78.7%) within 1 hour (h) of birth. Most (207, 72.4%) mothers indicated intent to breastfeed exclusively for 6 months or more, but this was lower among mothers of preterm babies (82.2% versus 20.0%, p < 0.001) and those without post-secondary school education (74.8% versus 55.6%, p = 0.02). Amongst mothers struggling to establish breastfeeding, 18/27 (66.7%) had a Cesarean section. Planned non-exclusive breastfeeding was mostly (39, 60.9%) motivated by mothers' concern that their milk supply would be insufficient for their baby's growth requirements. Most mothers had good knowledge about the benefits of breastfeeding and indicated strong decision autonomy. Conclusions: We documented high rates of early breastfeeding establishment and intent to breastfeed exclusively for 6 months or more. This probably reflects high levels of maternal education and successful implementation of the WHO ENC package. Mothers of premature babies may benefit from additional support. PMID- 29344081 TI - HPV infection and P16 expression in oral and oropharyngeal cancer in Kazakhstan. AB - Background: Human papillomavirus (HPV) is an important etiologic factor in different cancers of anogenital region and also in a fraction of head and neck cancers (HNC) particularly oropharyngeal tumors. The HPV16 genotype associated with the majority of HPV-related head and neck carcinomas. Th incidence of oropharyngeal cancer is increasing in many countries, and the rate of HPV positive tumors is about 70% in Europe and North America. Little known about the prevalence of HPV in HNC in Central Asia. Methods: It's a prospective analysis of patients with verified oral or oropharyngeal cancer. Sociodemographic and clinical data obtained on admission to treatment. The diagnosis of HPV positivity assessed by both the P16 expression on immunohistochemistry(IHC) and polymerase chain reaction (PCR)with HPV DNA detection and HR HPV type determination. Results: Seventy six patients with oral and oropharyngeal cancer tested for HPV. Forteen cases were positive for HPV by PCR and 15 cases by P16 IHC. Of the 35 oropharyngeal tumors, nine were HPV DNA and p16 IHC positive, giving the rate of 25.7%. Of the 41 oral tumors, five were HPV DNA and six p16 IHC positive, giving the rate of 12.2%. Conclusion: It is the first study mapping prevalence of HPV positivity in oral and oropharyngeal cancer in the Central Asian region. The rate of HPV positivity was higher in oropharyngeal than in oral cancer, the nonsmokers were significantly more frequent in the HPV positive group and HPV 16 was the most frequent type. However, the HPV positivity rates are lower than referred in the western world. PMID- 29344080 TI - Effects of Huang Bai (Phellodendri Cortex) on bone growth and pubertal development in adolescent female rats. AB - Background: To evaluate the effects of Huang Bai (Phellodendron amurense) on growth and maturation in adolescent female rats. Methods: Female Sprague-Dawley rats (28 days old; n = 72) were divided into six daily treatment groups: control (distilled water), Huang Bai (100 and 300 mg/kg), recombinant human GH (rhGH; 20 MUg/kg), estradiol (1 MUg/kg), and triptorelin (100 MUg). Body weight, food intake, and vaginal opening were measured daily from postnatal day (PND) 28 to PND 43. Tetracycline (20 mg/kg) was injected on PND 41. After sacrifice on PND 43, the ovaries and uterus were weighed, and the tibias were fixed in 4% paraformaldehyde. Decalcified and dehydrated tibias were sectioned at a thickness of 40 MUm, and sectioned tissues were examined with a fluorescence microscope. Insulin-like growth factor (IGF)-1 and bone morphogenetic protein (BMP)-2 were detected using immunohistochemistry. Results: Relative to controls, body weight was higher in the triptorelin group. Bone growth rate increased in the Huang Bai 100 mg/kg (354.00 +/- 31.1 MUm/day), rhGH (367.10 +/- 27.11 MUm/day), and triptorelin (374.50 +/- 25.37 MUm/day) groups. Expression of IGF-1 and BMP-2 in the hypertrophic zone was higher in all experimental groups. Vaginal opening occurred earlier in the estradiol group (PND 33.58 +/- 1.62) than in controls and later in the triptorelin group (PND > 43). Ovarian and uterine weights were lower in the oestradiol and triptorelin groups. However, Huang Bai had nonsignificant effects on vaginal opening and the weights of ovaries and the uterus. Conclusions: Huang Bai stimulated bone growth by upregulating IGF-1 and BMP-2 in the growth plate. However, it had no effect on pubertal development. PMID- 29344082 TI - Implementing guidelines on physical health in the acute mental health setting: a quality improvement approach. AB - Background: In the UK, life expectancy for people living with a serious mental illness, such as schizophrenia and bipolar disorder, is reduced by 15-20 years compared with the general population. In recent years, evidence based guidelines/policies designed to improve their physical health have been published, yet a gap remains between recommendations and practice. This case study describes how guidelines to support physical health were implemented using a quality improvement approach. Case presentation: A quasi-experimental study explored systems and processes for assessing the physical health of patients admitted to an acute mental health unit. The multi-disciplinary team of healthcare professionals, service users and experts in quality improvement methods developed solutions to improve the assessment of physical health, drawing on existing guidelines/policies as well as professional and lived experience. Three key interventions were developed: a comprehensive physical health assessment; a patient-held physical health booklet; and education and training for staff and patients. Interventions were co-designed by front-line healthcare staff and service users with iterative development and implementation through Plan-Do-Study-Act cycles. Real-time weekly data were reported on five measures over a 15-month implementation period (318 patients) and compared to a 10-month baseline period (247 patients) to gauge the success of the implementation of the physical health assessment. Improvements were seen in the numbers of patients receiving a physical health assessment: 81.3% (201/247) vs 96.9% (308/318), recording of body mass index: 21.55% (53/247) vs 58.6% (204/318) and systolic blood pressure: 22.35% (55/247) vs 75.9% (239/318) but a reduction in the recording of smoking status: 80.1% (198/247) vs 70.9% (225/318). However, 31.7% (118/318) patients had a cardiovascular risk-score documented in the implementation phase, compared to none in the baseline. Conclusion: This study demonstrates the use of a quality improvement approach to support teams to implement guidelines on physical health in the acute mental health setting. Reflections of the team have identified the need for resources, training, support and leadership to support changes to the way care is delivered. Furthermore, collaborations between service users and frontline clinical staff can co-design interventions to support improvements and raise awareness of the physical health needs of this population. PMID- 29344083 TI - Psychosocial problems in traumatized refugee families: overview of risks and some recommendations for support services. AB - This article is an abridged version of a report by an advisory council to the German government on the psychosocial problems facing refugee families from war zones who have settled in Germany. It omits the detailed information contained in the report about matters that are specific to the German health system and asylum laws, and includes just those insights and strategies that may be applicable to assisting refugees in other host countries as well. The focus is on understanding the developmental risks faced by refugee children when they or family members are suffering from trauma-related psychological disorders, and on identifying measures that can be taken to address these risks. The following recommendations are made: recognizing the high level of psychosocial problems present in these families, providing family-friendly living accommodations, teaching positive parenting skills, initiating culture-sensitive interventions, establishing training programs to support those who work with refugees, expanding the availability of trained interpreters, facilitating access to education and health care, and identifying intervention requirements through screening and other measures. PMID- 29344084 TI - The Strengths and Difficulties Questionnaire (SDQ) in Africa: a scoping review of its application and validation. AB - Background: Child and adolescent mental health in Africa remains largely neglected. Quick and cost-effective ways for early detection may aid early intervention. The Strengths and Difficulties Questionnaire (SDQ) is globally used to screen for mental health problems, but little is known about its use in Africa. We set out to perform a scoping review to examine existing studies that have used the SDQ in Africa. Methods: A comprehensive scoping review methodology was used to identify all peer-reviewed studies ever published that have used the SDQ in Africa. Data were extracted and analysed to assess the countries, languages and SDQ versions used, the purpose of the SDQ studies, psychometric properties of the SDQ, and to consider knowledge gaps for future in-country and cross-country studies. Results: Fifty-four studies from 12 African countries were identified, most from South Africa. Many different languages were used, but authorized SDQs in those languages were not always available on the SDQinfo website. Authors frequently commented on challenges in the translation and backtranslation of mental health terminology in African languages. The SDQ was typically used to investigate internalisation/externalization disorders in different clinical populations, and was most frequently used in the evaluation of children and adolescents affected by HIV/AIDS. Sixteen studies (29.6%) administered the SDQ to participants outside the intended age range, only 4 (7.4%) used triangulation of all versions to generate assessments, and eight studies (14.8%) used only subscales of the SDQ. Only one study conducted thorough psychometric validation of the SDQ, including examination of internal consistency and factor analysis. Where 'caseness' was defined in studies, UK cut-off scores were used in all but one of the studies. Conclusions: The SDQ may be a very useful tool in an African setting, but the scoping review suggested that, where it was used in Africa researchers did not always follow instrument guidelines, and highlighted that very little is known about the psychometric properties of the SDQ in Africa. We recommend comprehensive evaluation of the psychometric properties of the SDQ in various African languages, including internal consistency, factor structure, need for local cut-off values and ensuring cultural equivalence of the instrument. PMID- 29344086 TI - Correlation of structure, function and protein dynamics in GH7 cellobiohydrolases from Trichoderma atroviride, T. reesei and T. harzianum. AB - Background: The ascomycete fungus Trichoderma reesei is the predominant source of enzymes for industrial conversion of lignocellulose. Its glycoside hydrolase family 7 cellobiohydrolase (GH7 CBH) TreCel7A constitutes nearly half of the enzyme cocktail by weight and is the major workhorse in the cellulose hydrolysis process. The orthologs from Trichoderma atroviride (TatCel7A) and Trichoderma harzianum (ThaCel7A) show high sequence identity with TreCel7A, ~ 80%, and represent naturally evolved combinations of cellulose-binding tunnel-enclosing loop motifs, which have been suggested to influence intrinsic cellobiohydrolase properties, such as endo-initiation, processivity, and off-rate. Results: The TatCel7A, ThaCel7A, and TreCel7A enzymes were characterized for comparison of function. The catalytic domain of TatCel7A was crystallized, and two structures were determined: without ligand and with thio-cellotriose in the active site. Initial hydrolysis of bacterial cellulose was faster with TatCel7A than either ThaCel7A or TreCel7A. In synergistic saccharification of pretreated corn stover, both TatCel7A and ThaCel7A were more efficient than TreCel7A, although TatCel7A was more sensitive to thermal inactivation. Structural analyses and molecular dynamics (MD) simulations were performed to elucidate important structure/function correlations. Moreover, reverse conservation analysis (RCA) of sequence diversity revealed divergent regions of interest located outside the cellulose-binding tunnel of Trichoderma spp. GH7 CBHs. Conclusions: We hypothesize that the combination of loop motifs is the main determinant for the observed differences in Cel7A activity on cellulosic substrates. Fine-tuning of the loop flexibility appears to be an important evolutionary target in Trichoderma spp., a conclusion supported by the RCA data. Our results indicate that, for industrial use, it would be beneficial to combine loop motifs from TatCel7A with the thermostability features of TreCel7A. Furthermore, one region implicated in thermal unfolding is suggested as a primary target for protein engineering. PMID- 29344087 TI - Determination of the native features of the exoglucanase Cel48S from Clostridium thermocellum. AB - Background: Clostridium thermocellum is considered one of the most efficient natural cellulose degraders because of its cellulosomal system. As the major exoglucanase of cellulosome in C. thermocellum, Cel48S plays key roles and influences the activity and features of cellulosome to a great extent. Thus, it is of great importance to reveal the enzymatic features of Cel48S. However, Cel48S has not been well performed due to difficulties in purifying either recombinant or native Cel48S proteins. Results: We observed that the soluble fraction of the catalytic domain of Cel48S (Cel48S_CD) obtained by heterologous expression in Escherichia coli and denaturation-refolding treatment contained a large portion of incorrectly folded proteins with low activity. Using a previously developed seamless genome-editing system for C. thermocellum, we achieved direct purification of Cel48S_CD from the culture supernatant of C. thermocellum DSM1313 by inserting a sequence encoding 12 successive histidine residues and a TAA stop codon immediately behind the GH domain of Cel48S. Based on the fully active protein, biochemical and structural analyses were performed to reveal its innate characteristics. The native Cel48S_CD showed high activity of 117.61 +/- 2.98 U/mg and apparent substrate preference for crystalline cellulose under the assay conditions. The crystal structure of the native GH48 protein revealed substrate-coupled changes in the residue conformation, indicating induced-fit effects between Cel48S_CD and substrates. Mass spectrum and crystal structural analyses suggested no significant posttranslational modification in the native Cel48S_CD protein. Conclusion: Our results confirmed that the high activity and substrate specificity of Cel48S_CD from C. thermocellum were consistent with its importance in the cellulosome. The structure of the native Cel48S_CD protein revealed evidence of conformational changes during substrate binding. In addition, our study provided a reliable method for in situ purification of cellulosomal and other secretive proteins from C. thermocellum. PMID- 29344088 TI - Incidence and root causes of delays in emergency orthopaedic procedures: a single centre experience of 36,017 consecutive cases over seven years. AB - Background: Emergency surgery is unplanned by definition and patients are scheduled for surgery with minimal preparation. Some patients who have sustained emergency orthopaedic trauma or other conditions must be operated on immediately or within a few hours, while others can wait until the hospital's resources permit and/or the patients' health status has been optimised as needed. This may affect the prioritisation procedures for both emergency and elective surgery and might result in waiting lists, not only for planned procedures but also for emergencies. Method: The main purpose of this retrospective, observational, single-centre study was to evaluate and describe for the number and reasons of delays, as well as waiting times in emergency orthopaedic surgery using data derived from the hospital's records and registers. All the emergency patients scheduled for emergency surgery whose procedures were rescheduled and delayed between 1 January 2007 and 31 December 2013 were studied. Result: We found that 24% (8474) of the 36,017 patients scheduled for emergency surgeries were delayed and rescheduled at least once, some several times. Eighty per cent of these delays were due to organisational causes. Twenty-one per cent of all the delayed patients had surgery within 24 h, whilst 41% waited for more than 24 h, up to 3 days. Conclusion: A large number of the clinic's emergency orthopaedic procedures were rescheduled and delayed and the majority of the delays were related to organisational reasons. The results can be interpreted in two ways; first, organisational reasons are avoidable and the potential for improvement is great and, secondly and most importantly, the delays might negatively affect patient outcomes. PMID- 29344085 TI - Synthesis, secretion, function, metabolism and application of natriuretic peptides in heart failure. AB - As a family of hormones with pleiotropic effects, natriuretic peptide (NP) system includes atrial NP (ANP), B-type NP (BNP), C-type NP (CNP), dendroaspis NP and urodilatin, with NP receptor-A (guanylate cyclase-A), NP receptor-B (guanylate cyclase-B) and NP receptor-C (clearance receptor). These peptides are genetically distinct, but structurally and functionally related for regulating circulatory homeostasis in vertebrates. In humans, ANP and BNP are encoded by NP precursor A (NPPA) and NPPB genes on chromosome 1, whereas CNP is encoded by NPPC on chromosome 2. NPs are synthesized and secreted through certain mechanisms by cardiomyocytes, fibroblasts, endotheliocytes, immune cells (neutrophils, T-cells and macrophages) and immature cells (embryonic stem cells, muscle satellite cells and cardiac precursor cells). They are mainly produced by cardiovascular, brain and renal tissues in response to wall stretch and other causes. NPs provide natriuresis, diuresis, vasodilation, antiproliferation, antihypertrophy, antifibrosis and other cardiometabolic protection. NPs represent body's own antihypertensive system, and provide compensatory protection to counterbalance vasoconstrictor-mitogenic-sodium retaining hormones, released by renin angiotensin-aldosterone system (RAAS) and sympathetic nervous system (SNS). NPs play central roles in regulation of heart failure (HF), and are inactivated through not only NP receptor-C, but also neutral endopeptidase (NEP), dipeptidyl peptidase-4 and insulin degrading enzyme. Both BNP and N-terminal proBNP are useful biomarkers to not only make the diagnosis and assess the severity of HF, but also guide the therapy and predict the prognosis in patients with HF. Current NP-augmenting strategies include the synthesis of NPs or agonists to increase NP bioactivity and inhibition of NEP to reduce NP breakdown. Nesiritide has been established as an available therapy, and angiotensin receptor blocker NEP inhibitor (ARNI, LCZ696) has obtained extremely encouraging results with decreased morbidity and mortality. Novel pharmacological approaches based on NPs may promote a therapeutic shift from suppressing the RAAS and SNS to re-balancing neuroendocrine dysregulation in patients with HF. The current review discussed the synthesis, secretion, function and metabolism of NPs, and their diagnostic, therapeutic and prognostic values in HF. PMID- 29344089 TI - Bone marrow failure may be caused by chromosome anomalies exerting effects on RUNX1T1 gene. AB - Background: The majority of the cases of bone marrow failure syndromes/aplastic anaemias (BMFS/AA) are non-hereditary and considered idiopathic (80-85%). The peripheral blood picture is variable, with anaemia, neutropenia and/or thrombocytopenia, and the patients with idiopathic BMFS/AA may have a risk of transformation into a myelodysplastic syndrome (MDS) and/or an acute myeloid leukaemia (AML), as ascertained for all inherited BMFS. We already reported four patients with different forms of BMFS/AA with chromosome anomalies as primary etiologic event: the chromosome changes exerted an effect on specific genes, namely RUNX1, MPL, and FLI1, leading to the disease. Results: We report two further patients with non-hereditary BM failure, with diagnosis of severe aplastic anaemia and pancytopenia caused by two different constitutional structural anomalies involving chromosome 8, and possibly leading to the disorder due to effects on the RUNX1T1 gene, which was hypo-expressed and hyper-expressed, respectively, in the two patients. The chromosome change was unbalanced in one patient, and balanced in the other one. Conclusions: We analyzed the sequence of events in the pathogenesis of the disease in the two patients, including a number of non-haematological signs present in the one with the unbalanced anomaly. We demonstrated that in these two patients the primary event causing BMFS/AA was the constitutional chromosome anomaly. If we take into account the cohort of 219 patients with a similar diagnosis in whom we made cytogenetic studies in the years 2003-2017, we conclude that cytogenetic investigations were instrumental to reach a diagnosis in 52 of them. We postulate that a chromosome change is the primary cause of BMFS/AA in a not negligible proportion of cases, as it was ascertained in 6 of these patients. PMID- 29344090 TI - Overexpression of the proneural transcription factor ASCL1 in chronic lymphocytic leukemia with a t(12;14)(q23.2;q32.3). AB - Background: Translocations of the IGH locus on 14q32.3 are present in about 8% of patients with chronic lymphocytic leukemia (CLL) and contribute to leukemogenesis by deregulating the expression of the IGH-partner genes. Identification of these genes and investigation of the downstream effects of their deregulation can reveal disease-causing mechanisms. Case presentation: We report on the molecular characterization of a novel t(12;14)(q23.2;q32.3) in CLL. As a consequence of the rearrangement ASCL1 was brought into proximity of the IGHJ-CMU enhancer and was highly overexpressed in the aberrant B-cells of the patient, as shown by qPCR and immunohistochemistry. ASCL1 encodes for a transcription factor acting as a master regulator of neurogenesis, is overexpressed in neuroendocrine tumors and a promising therapeutic target in small cell lung cancer (SCLC). Its overexpression has also been recently reported in acute adult T-cell leukemia/lymphoma.To examine possible downstream effects of the ASCL1 upregulation in CLL, we compared the gene expression of sorted CD5+ cells of the translocation patient to that of CD19+ B-cells from seven healthy donors and detected 176 significantly deregulated genes (Fold Change >=2, FDR p <= 0.01). Deregulation of 55 genes in our gene set was concordant with at least two studies comparing gene expression of normal and CLL B-lymphocytes. INSM1, a well-established ASCL1 target in the nervous system and SCLC, was the gene with the strongest upregulation (Fold Change = 209.4, FDR p = 1.37E-4).INSM1 encodes for a transcriptional repressor with extranuclear functions, implicated in neuroendocrine differentiation and overexpressed in the majority of neuroendocrine tumors. It was previously shown to be induced in CLL cells but not in normal B-cells upon treatment with IL-4 and to be overexpressed in CLL cells with unmutated versus mutated IGHV genes. Its role in CLL is still unexplored. Conclusion: We identified ASCL1 as a novel IGH partner gene in CLL. The neural transcription factor was strongly overexpressed in the patient's CLL cells. Microarray gene expression analysis revealed the strong upregulation of INSM1, a prominent ASCL1 target, which was previously shown to be induced in CLL cells upon IL-4 treatment. We propose further investigation of the expression and potential role of INSM1 in CLL. PMID- 29344091 TI - The correlation between gain of chromosome 8q and survival in patients with clear and papillary renal cell carcinoma. AB - Background: The proto-oncogene c-MYC, located on chromosome 8q, can be upregulated through gain of 8q, causing alteration in biology of renal cell carcinoma (RCC). The aim of this study was to evaluate the prevalence of c-MYC through chromosome 8q gain and to correlate findings with cancer-specific mortality (CSM), and overall survival (OS). Methods: Cytogenetic analysis by conventional or Chromosomal Genomic Microarray Analysis (CMA) was performed on 414 renal tumors. Nonclear and nonpapillary RCC were excluded. Impact of gain in chromosome 8q status on CSM, OS, and its correlation with clinicopathological variables were evaluated. CSM and OS were assessed using log-rank test and the Cox proportional hazards model. Results: A total of 297 RCC tumors with cytogenetic analysis were included. Gain of 8q was detected in 18 (6.1%) tumors (9 clear cell and 9 papillary RCC), using conventional method (n = 11) or CMA (n = 7). Gain of 8q was associated with higher T stage (p < 0.001), grade (p < 0.001), nodal involvement (p = 0.005), and distant metastasis (p < 0.001). No association between gain of 8q and age (p = 0.23), sex (p = 0.46), and Charlson comorbidity index (CCI, p = 0.59) were seen. Gain of 8q was associated with an 8.38-fold [95% confidence interval (CI), 3.83-18.34, p < 0.001] and 3.31-fold (95% CI, 1.56-7.04, p = 0.001) increase in CSM and decrease in OS, respectively, at a median follow up of 56 months. Conclusion: Chromosome 8q harbors the proto oncogene c-MYC, which can be upregulated by gain of 8q. Our findings suggest that gain of 8q, can predict aggressive tumor phenotype and inferior survival in RCC. PMID- 29344092 TI - Engaging the primary care community to encourage appropriate prostate cancer screening. AB - Prostate-specific antigen (PSA) screening for prostate cancer remains a controversial topic, particularly in the primary care community. Our multidisciplinary prostate screening panel at Duke University Health System, USA created a nuanced PSA screening algorithm, implemented it into the Electronic Health Record of Duke Primary Care, and conducted outreach meetings with primary care practices to support its rollout. Through this project, we identified areas of concern among primary care clinicians regarding PSA screening that we structured into two major categories: ideological opposition and logistical opposition. We outlined specific concerns in each major category and described how our team responded to those concerns. As communication between primary care clinicians and prostate specialists is vital to the success and safety of PSA screening programs, we hope that describing primary care concerns and our responses to them will help other health systems thoughtfully and efficiently implement appropriate PSA screening programs moving forward. PMID- 29344093 TI - Current best practice in the management of cystitis and pelvic pain. AB - Bladder pain syndrome (BPS) is a difficult disorder to diagnose and subsequently manage despite having been recognized for more than 200 years according to references in medical literature. There are currently three widely accepted guidelines on BPS: the American Urological Association Guidelines; the Royal College of Obstetricians and Gynaecologists in conjunction with the British Society of Urogynaecologists Guidelines; and the European Association of Urology Guidelines. These guidelines have similarities to each other but also significant differences. This leaves clinicians still confused about this condition and how to appropriately manage the 'real' patient. We review the current guidelines and appropriate literature and put forward a clinically usable management strategy. PMID- 29344094 TI - Robotic prostatectomy leading to a delayed MRSA infected lymphocele: a case report and review of the literature. AB - Prostate cancer is the second leading cancer-related cause of death in the USA with the majority presenting as localized disease. In the last decade minimally invasive, robotic-assisted laparascopic, radical prostatectomy has become the most favored treatment choice. A complication that has been observed in 27% of patients is the formation of an asymptomatic lymphocele. It is a very rare complication for these to become infected, and when they do 80% have occurred 2 12 months post-procedure. In this case report the patient presented with fever and leukocytosis of unknown origin and was found to have a methicillin-resistant Staphylococcus aureus (MRSA) infected lymphocele over 2 years after a radical prostatectomy. The infected fluid collection was drained percutaneously and the patient was treated with a 4-week course of intravenous ceftaroline with complete resolution of symptoms. PMID- 29344095 TI - Metachronous metastasis of renal cell carcinoma to the urinary bladder: a case report. AB - We report a case of intravesical metastasis of a clear cell renal cell carcinoma. In renal cell carcinoma 16% of patients present with metastatic disease. Renal cell carcinoma can metastasize to nearly every organ, although metastatic spread to the urinary bladder is rare, with fewer than 70 described cases. The route and pattern of metastatic spread is not yet fully understood and different pathways are suggested. Gross haematuria is the presenting symptom in the majority of cases. These intravesical metastases may be synchronous or metachronous and can be solitary or part of polymetastatic disease. No standard treatment can be suggested due to the rare nature of this phenomenon, and treatment varies from transurethral resection, partial or complete cystectomy to systemic therapy. Prognosis in patients with a solitary bladder lesion that developed metachronously is rather good, whereas poor prognosis can be expected in patients with synchronous and multiple metastases. PMID- 29344096 TI - Prevention is better than cure: The role of infection prevention in the control of antimicrobial resistance. PMID- 29344097 TI - Investigating the use of an electronic hand hygiene monitoring and prompt device: influence and acceptability. AB - Introduction: Hand hygiene (HH) prevents the transmission of healthcare associated infections. Electronic HH monitoring and prompt devices have been developed to overcome problems with monitoring HH and to improve compliance. Devices monitor room entry and exit and soap use through communication between ceiling sensors and badges worn by practitioners and the badges sense alcohol rub. Objectives: To investigate (1) the impact of devices on HH compliance, (2) how devices influence behaviour and (3) the experience and opinions of practitioners on the use devices. Methods: HH compliance was monitored (before, during and after system installation) by observations and alcohol rub usage. Compliance during installation was also monitored by the device. Healthcare practitioner interviews (n = 12) explored how the device influenced behaviour and experiences and opinions of wearing the device. Results: HH compliance improved during the period the device was installed. Practitioners reported the device increased their awareness, enhancing their empathy for patients and encouraged patients and colleagues to prompt when HH was needed. Practitioners' reported better HH, gaming the system and feelings of irritation. Conclusion: HH prompt and monitoring systems seem to improve compliance but improvements may be undermined by practitioner irritation and system gaming. PMID- 29344098 TI - 'Time to clean': A systematic review and observational study on the time required to clean items of reusable communal patient care equipment. AB - Background: Concerns have been raised over poor standards of hospital cleanliness and insufficient time for staff to clean reusable communal patient care equipment. These items may then act as vectors for the transmission of nosocomial pathogens between hospital patients. Aim: To evaluate the impact of cleaning duration on nosocomial infection rates and estimate the time required to clean care equipment in accordance with national specifications (i.e. a 'time to clean'). Methods: A systematic review of the published literature on cleaning times and an observational study in which nine healthcare workers cleaned seven items of care equipment while the duration of time taken to clean each item was measured. Results: A limited volume of low-quality evidence indicates that increased cleaning times in hospitals can reduce the incidence of healthcare associated infections (HCAIs). The mean 'time to clean' for care equipment ranged from 166.3 s (95% confidence interval [CI] = 117.8-214.7) for a bed frame to 29.0 s (95% CI = 13.4-44.6) for a blood pressure cuff. Discussion: 'Time to clean' estimates for care equipment provide an indication of how much protected time is necessary to ensure acceptable standards of cleanliness. Clinical trials are needed to further evaluate the impact of increased cleaning times on nosocomial infection rates. PMID- 29344099 TI - Audit of the management of patients at high risk of carbapenemase-producing enterobacteriaceae (CPE): Are we ready? AB - Background: Incidence of carbapenemase-producing enterobacteriaceae (CPE) in the UK is increasing. In 2013, Public Health England (PHE) published a toolkit to control spread of CPE within healthcare settings. Aim: To assess compliance to hospital CPE policy (adapted from PHE) in the identification, isolation and screening of suspected CPE patients. Methods: Admission booklets of 150 patients were evaluated to see whether the relevant section had been completed to identify high-risk CPE patients. Where necessary, patients were interviewed or their GPs were contacted to assess their CPE risk. Additionally, 28 patients screened for CPE were audited to assess compliance to screening and isolation. Findings: Only 23 patients out of 147 (15.6%) were risk assessed on admission. Risk status of 27 (18.4%) patients could not be assessed due to lack of data. Fifteen patients out of 28 (54%) screened for CPE were identified and isolated on admission. Ten out of 19 patients (53%) had three screens 48 h apart. Discussion: This audit highlights difficulties in screening based on individual risk factors as the majority of patients were not screened on admission and documentation on isolation and screening was poor. More needs to be done to raise awareness of the requirements for routine assessment, isolation and screening. PMID- 29344100 TI - Surgical site infection prevention: An analysis of compliance with good practice in a teaching hospital. AB - Background: Surgical teams play a critical role in reducing surgery-related risks during preoperative and intraoperative phases. Aim: To analyse the preoperative and intraoperative practices adopted by surgical teams in surgical site infections prevention. Methods: This was a cross-sectional study conducted during April-September 2013 in a large university hospital in Belo Horizonte, Minas Gerais, Brazil. It was conducted through observation of the surgical practice during preoperative and intraoperative phases of procedures used by a gastroenterological, cardiovascular and paediatric surgical team. Results: A total of 100 surgeries were monitored. Hair removal was performed for 20% of the patients inside the operating room by professionals using clippers in 65% of operations. The antimicrobial agent of choice was appropriate/satisfactory in 62% of the operations and administered up to 60 min before surgical incision in 90.3% of the cases. The operating room door was kept closed in 4% of these procedures. Discussion: Some preoperative measures for surgical site infection prevention were not adhered to by the professionals who were monitored in this study. It is recommended that surgical teams undergo professional surveillance and training to highlight the necessity and importance of implementing measures to improve the quality of care provided to surgical patients. PMID- 29344101 TI - Healthcare-associated Legionnaires' disease: Limitations of surveillance definitions and importance of epidemiologic investigation. AB - Healthcare-associated Legionnaires' disease (HCA LD) causes significant morbidity and mortality, with varying guidance on prevention. We describe the evaluation of a case of possible HCA LD and note the pitfalls of relying solely on an epidemiologic definition for association of a case with a facility. Our detailed investigation led to the identification of a new Legionella pneumophila serogroup 1 sequence type, confirmed a healthcare association and helped build the framework for our ongoing preventive efforts. Our experience highlights the role of routine environmental cultures in the assessment of risk for a given facility. As clinicians increasingly rely on urinary antigen testing for the detection of L. pneumophila, our investigation emphasises the importance of clinical cultures in an epidemiologic investigation. PMID- 29344103 TI - Diary. PMID- 29344102 TI - Should preoperative showering or cleansing with chlorhexidine gluconate (CHG) be part of the surgical care bundle to prevent surgical site infection? AB - Showering preoperatively with chlorhexidine gluconate is an issue that continues to promote debate; however, many studies demonstrate evidence of surgical site infection risk reduction. Methodological issues have been present in many of the studies used to compile guidelines and there has been a lack of standardisation of processes for application of the active agents in papers pre-2009. This review and commentary paper highlights the potential for enhancing compliance with this low-risk and low-cost intervention and provides some guidance for enhancing implementation of preoperative showering with both chlorhexidine in solution and impregnated wipes. PMID- 29344104 TI - X-inactive-specific transcript of peripheral blood cells is regulated by exosomal Jpx and acts as a biomarker for female patients with hepatocellular carcinoma. AB - Background: Long noncoding ribonucleic acid (lncRNA) X-inactive-specific transcript (Xist) was reported to affect cell proliferation and metastasis in hepatocellular carcinoma (HCC). However, there are rare reports focusing on the diagnostic evaluation and regulatory mechanism of Xist expression from peripheral blood cells of patients with HCC. Methods: In this study, a cohort of 206 female participants including healthy volunteers (HVs) and patients with chronic hepatitis B (CHB), cirrhosis and HCC was recruited. Coculture system was used to evaluate the effects of exosomal JPX transcript, XIST activator (Jpx) on Xist expression of blood cells. Results: First, Xist expressions of both peripheral blood mononuclear cells and granulocytes were upregulated in female patients with HCC, and showed significantly increased discriminatory power when differentiating female patients with early-stage HCC from controls or differentiating female patients with HCC from patients with CHB and cirrhosis, compared with alpha fetoprotein (AFP). Then, another lncRNA Jpx that was an activator of Xist was upregulated in exosomes, mononuclear cells and granulocytes of female patients with HCC. Furthermore, our results showed that Jpx could be delivered from HCC cells to blood cells via exosomes and activate Xist expression of blood cells by repressing the transregulatory effects of CCCTC-binding factor (CTCF). Conclusions: This study revealed an exosome-mediated regulation of Xist expression in blood cells and suggested that Xist expressions of mononuclear cells and granulocytes would be promising biomarkers for diagnosis of female patients with HCC. PMID- 29344105 TI - Optimal duration of adjuvant endocrine therapy: how to apply the newest data. AB - Background: The benefit of 5 years of adjuvant endocrine therapy for women with hormone receptor-positive (HR+) breast cancer (BC) is beyond discussion. Nevertheless, the risk of recurrence of luminal BC persists for 15 years or more after diagnosis. Consequently, approaches of extended adjuvant therapy have been investigated in large clinical trials, with the ultimate aim of further reducing the risk of recurrence in patients with HR+ BC. Methods: A review of recently published trial data is presented to provide a solid basis for discussion. A discussion of the side effects of long-term endocrine treatment, multigenetic tests aiming to identify patients at particular risk, and an outlook for further promising targets are additional aims of this review. Conclusion: Extended adjuvant therapy seems beneficial in reducing distant relapse and contralateral BC for a selected group of patients with HR+ BC, particularly if aromatase inhibitors (AIs) are used after initial tamoxifen therapy. However, patients with lower risk of recurrence and initial AI therapy may suffer more from side effects than benefit from extended therapy. PMID- 29344106 TI - Overall survival and progression-free survival with endocrine therapy for hormone receptor-positive, HER2-negative advanced breast cancer: review. AB - We reviewed randomized phase II/III trials comparing first- or second-line endocrine therapy as monotherapy or in combination with targeted therapies for treatment of postmenopausal patients with hormone receptor-positive advanced breast cancer. First-line was defined as treatment for endocrine therapy-naive advanced breast cancer or advanced disease treated with endocrine therapy in the adjuvant/neoadjuvant setting. Second-line was defined as endocrine therapy for advanced breast cancer following disease progression on endocrine therapy for advanced disease. Publications reporting progression-free survival (PFS)/time to progression (TTP) or overall survival (OS) for FDA-approved agents anastrozole, exemestane, fulvestrant 250 mg, fulvestrant 500 mg, letrozole (0.5 and 2.5 mg), megestrol acetate, and tamoxifen as monotherapy, or in combination with everolimus, palbociclib or ribociclib, were assessed. First-line monotherapy with anastrozole, fulvestrant 500 mg or letrozole 2.5 mg significantly improved PFS/TTP versus comparator endocrine therapy; however, only fulvestrant 500 mg improved OS. For endocrine therapy in combination with targeted therapies, palbociclib plus letrozole 2.5 mg, and ribociclib plus letrozole 2.5 mg significantly improved PFS versus letrozole 2.5 mg alone first-line. For second line monotherapies, exemestane, fulvestrant 500 mg and letrozole 2.5 mg significantly improved PFS/TTP versus comparator endocrine therapy; only fulvestrant 500 mg and letrozole 2.5 mg improved OS. For second-line combination therapies, everolimus plus exemestane, and palbociclib plus fulvestrant 500 mg, improved PFS versus endocrine therapy alone. In both first- and second-line settings, aromatase inhibitors demonstrated PFS benefits versus comparator endocrine therapy; however, fulvestrant 500 mg was the only endocrine therapy included in our review to show both PFS and OS advantages compared with other endocrine therapies. Targeted agents in combination with endocrine therapy have demonstrated PFS improvements both first- and second-line; OS data are awaited. PMID- 29344107 TI - Managing hyponatremia in lung cancer: latest evidence and clinical implications. AB - Hyponatremia is the most common electrolyte disorder in lung cancer patients. This condition may be related to many causes including incidental medications, concurrent diseases and side effects of antineoplastic treatments or the disease itself. Although not frequently life-threatening, it is usually associated with prolonged hospitalization, delays in scheduled chemotherapy, worsening of patient performance status and quality of life and may also negatively affect treatment response and survival. Most of the available data focus on thoracic tumors, especially small-cell lung cancer (SCLC), where hyponatremia is frequently related to the syndrome of inappropriate secretion of antidiuretic hormone (SIADH). Few studies specifically focus on non-small cell lung cancer (NSCLC) patients. Hyponatremia treatment needs to be personalized based on severity and duration of sodium serum reduction, extracellular fluid volume and etiology. However, literature data highlight the importance of early correction of the serum concentration levels. To achieve this the main options are fluid restriction, hypertonic saline, loop diuretics, isotonic saline, tolvaptan and urea. The aim of this review is to analyze the role of hyponatremia in lung cancer patients, evaluating causes, diagnosis, management and clinical implications. PMID- 29344109 TI - Corrigendum. AB - [This corrects the article DOI: 10.1177/1758834017711097.]. PMID- 29344108 TI - Estimating the 95% confidence interval for survival gain between an experimental anti-cancer treatment and a control. PMID- 29344111 TI - Corrigendum. AB - [This corrects the article DOI: 10.1177/1759720X17729641.]. PMID- 29344110 TI - Anti-interleukin and interleukin therapies for psoriasis: current evidence and clinical usefulness. AB - Anti-interleukin (IL) therapies have emerged as a major treatment for patients with moderate-to-severe psoriasis. This article reviews the up-to-date results of pivotal clinical trials targeting the interleukins used for the treatment of psoriasis, including IL-1, IL-2, IL-6, IL-8, IL-10, IL-12, IL-17, IL-20, IL-22, IL-23, IL-36 and bispecific biologics IL-17A/tumor necrosis factor alpha (TNF alpha). Cytokines involved in the circuits of psoriasis inflammation without ongoing clinical trials are also mentioned (IL-9, IL-13, IL-15, IL-16, IL-18, IL 19, IL-21, IL-24, IL-27, IL-33, IL-35, IL-37, and IL-38). PMID- 29344112 TI - ZGDHu-1 for cancer therapy. AB - N,N'-di-(m-methylphenyl)-3,6-dimethyl-1,4-dihydro-1,2,4,5-tetrazine-1,4 dicarboamide (ZGDHu-1) is a novel tetrazine derivative that was initially designed and produced by Professor W.X. Hu, and which has been reported by our group to exhibit antitumor activity. Accumulating evidence suggests that the anticancer mechanisms of ZGDHu-1 may be involved indifferent biological activities, particularly in acute myeloid leukemia (AML) cells. At a high concentration, ZGDHu-1 has been demonstrated to inhibit the proliferation of the leukemia cells by arresting the cell cycle at the G2/M phase, and by inducing cell apoptosis via inducing the accumulation of reactive oxygen species, the translocation of phosphatidylserine across the plasma membrane and the loss of mitochondrial membrane potential. Furthermore, at a low concentration, it was demonstrated to induce the differentiation and degrade the AML1-eight-twenty-one fusion protein in AML cells. Finally, results from a previous study indicate that ZGDHu-1 is a potential proteasome inhibitor. Overall, our preliminary research suggests that ZGDHu-1 may be a promising anticancer drug; however, further research is warranted to identify the exact drug target and potential clinical application in leukemia cells or solid tumors. In the present review, the application of ZGDHu-1 in cancer research, in addition to the specific underlying targets of ZGDHu-1, are discussed. PMID- 29344113 TI - Downregulated miRNA-1269a variant (rs73239138) decreases the susceptibility to gastric cancer via targeting ZNF70. AB - Although emerging evidence has indicated that single nucleotide polymorphisms (SNPs) in microRNAs (miRNAs) are associated with susceptibility to gastric cancer, a limited number of studies have revealed the underlying molecular mechanisms. In the present study, the results suggested that miR-1269a rs73239138 has a role in decreasing the risk of gastric cancer. The level of miR-1269a variant expression was significantly downregulated compared with the wild-type miR-1269a in the gastric cells (Fig. 1). Furthermore, overexpression of miR-1269a inhibited apoptosis of gastric cancer cells. Expression of the miR-1269a variant inhibited the function of miR-1269a by increasing the apoptotic rate and the expression of Bik, Bim and Bak was upregulated consistently. In addition, zinc finger protein 70 (ZNF70) was identified to be a target gene of miR-1269a, which was downregulated by miR-1269a and upregulated by miR-1269a variant. ZNF70 was indicated to exert a role as a tumor suppressor in gastric cancer. To the best our knowledge, the present study for the first time highlights a critical role of miR-1269a variant rs73239138 in decreasing the susceptibility to gastric cancer by downregulating its expression and targeting ZNF70, which promotes apoptosis of gastric cancer cells. This SNP is indicated to serve as a potential biomarker and therapeutic target for gastric cancer. PMID- 29344114 TI - HNF-4alpha promotes multidrug resistance of gastric cancer cells through the modulation of cell apoptosis. AB - Multidrug resistance (MDR) typically leads to treatment failure, and is associated with disease progression of gastric cancer (GC). In the present study, a total of 15 aberrantly activated transcription factors (TFs) were detected in chemo-resistant GC cells using a TF Activation Profiling Plate Array. Among these TFs, hepatocyte nuclear factor (HNF)-4alpha was significantly upregulated in multidrug-resistant GC cells (P=0.019). The overexpression of HNF-4alpha was able to cause resistance to multiple chemotherapeutics, whereas inhibition of HNF 4alpha appeared to reverse cancer cell resistance. Further studies demonstrated that HNF-4alpha had no clear influence on drug transportation; however, inhibition of drug-induced cell apoptosis occurred as B-cell lymphoma 2 (Bcl-2) expression increased in GC cells. Additionally, immunohistochemistry demonstrated that HNF-4alpha was overexpressed in human GC tissues, and associated with tumor stage and lymph node metastasis. In conclusion, the results of the present study indicate the involvement of TFs in MDR in GC, and suggest that HNF-4alpha may enhance MDR in GC by regulating cell apoptosis and Bcl-2 expression. PMID- 29344115 TI - Clinical significance of LMO1 in gastric cancer tissue and its association with apoptosis of cancer cells. AB - It has been reported that LMO1 gene was associated with progression, metastasis and apoptosis of leukemia, colorectal cancer and lung cancer. However, the association of LMO1 and gastric cancer remains unclear. The aim of this study is to analyze the relation between LMO1 expression and apoptosis of gastric cancer cells and explore the clinical implications of LMO1 in gastric cancer tissues. The results demonstrated that expression levels of LMO1 and Bcl-2 proteins in gastric cancer tissues were higher than those in adjacent tissues, whereas the opposite was detected for Bax expression (P<0.05). LMO1 protein was associated with TNM staging and lymph node metastasis in gastric cancer (P<0.05). The survival rate of the patients with positive LMO1 gastric carcinoma was lower than that with negative LOM1 expression, and LMO1 was as an independent prognostic factor in COX survival analysis (P<0.05). LMO1-siRNA transfected MKN45 cells had a significant decrease in LMO1 expression and the cell viability, despite of an increase in the apoptotic rate (P<0.05). Following LMO1-siRNA transfection, Bcl-2 expression decreased, while the expression of Bax increased (P<0.05). It's concluded that overexpressed LMO1 in gastric cancer could be as one of new markers of poor prognosis. PMID- 29344116 TI - Knockdown of TGIF attenuates the proliferation and tumorigenicity of EC109 cells and promotes cisplatin-induced apoptosis. AB - A previous study has reported that frequent amplifications of the TG-interacting factor (TGIF) were observed in esophageal squamous cell carcinoma. The aim of the present study was to investigate the potential role of TGIF in the proliferation and tumorigenicity of the esophageal cancer cell line EC109 and cisplatin-induced apoptosis. Stable TGIF-knockdown EC109 cell line was established by infecting short hairpin RNA (shRNA) lentiviral particles. Soft agar and tumor xenograft assays were applied in nude mice. Flow cytometry was employed to evaluate the cell cycle and apoptosis. Western blot analysis was used to detect the expression of proteins. TGIF knockdown suppressed EC109 cell proliferation, colony formation in soft agar and tumor growth in nude mice, induced cell cycle arrest in the G1 phase, and promoted cisplatin-induced apoptosis. In addition, TGIF knockdown significantly reduced the expression of phospho-Rb in EC109 cells. The reduced level of full length PARP expression and the increased level of cleaved caspase-3 expression were observed in EC109 cells with the treatment of cisplatin and TGIF knockdown. The results suggest that knockdown of TGIF attenuated the proliferation and tumorigenicity of EC109 cells, and promoted cisplatin-induced apoptosis. PMID- 29344117 TI - Wnt inhibitor XAV939 suppresses the viability of small cell lung cancer NCI-H446 cells and induces apoptosis. AB - Small cell lung cancer (SCLC) is the most aggressive type of lung cancer due to a fast tumor doubling time and early hematogenous spread. Advances in the treatment of non-small cell lung cancer using targeted therapies having been made, but no targeted drugs for SCLC have been approved. The Wnt signaling pathway is associated with tumor progression and metastasis; therefore, the inhibition of Wnt/beta-catenin signaling is a strategy for anticancer drugs. Tankyrase 1 (TNKS1) is overexpressed in a number of types of cancer and XAV939 is a small molecule inhibitor of TNKS1 which may inhibit tumor growth. The present study aimed to investigate the potential molecular mechanisms underlying XAV939-induced suppression of the viability of SCLC cells. MTT assays were used to determine the viability-inhibition rate of cells and to identify the drug concentration which optimally inhibited cell viability. Flow cytometry was used to determine whether XAV939 induced apoptosis of SCLC cells, and to analyze the effect of the drug on the cell cycle. The results of the present study identified that XAV939 inhibited the viability of NCI-H446 cells in a dose-dependent manner, but cisplatin inhibited NCI-H446 cell viability in a time- and dose-dependent manner. The combination of XAV939 and cisplatin exhibited a slightly more pronounced inhibition of cell viability at an increased dose of XAV939. In addition, XAV939 markedly induced cell apoptosis of the SCLC cell line H446 by increasing the proportion of cells in the G0/G1 phase, leading to inhibition of the cell cycle. The results of the present study indicated that XAV939 inhibited the viability of the NCI-H446 SCLC cell line by inducing cell apoptosis through the Wnt signaling pathway. Therefore, XAV939 may be useful for the treatment of SCLC. PMID- 29344118 TI - SHISA2 enhances the aggressive phenotype in prostate cancer through the regulation of WNT5A expression. AB - The present study aimed at identifying novel molecular cancer drug targets and biomarkers by analyzing the gene expression profiles of high-grade prostate cancer (PC), using a cDNA microarray combined with laser microbeam microdissection. A number of genes were identified that were transactivated in high-grade PC. First, a novel molecular target and diagnostic biomarker, shisa family member 2 (SHISA2), was identified as an overexpressed gene in high-grade PC cells. The reverse transcription-semi-quantitative polymerase chain reaction and immunohistochemical analysis validated the overexpression of SHISA2 (295 amino acids in length), specifically in high-grade PC cells with Gleason scores of between 8 and 10, relative to normal prostate epithelium. Knockdown of SHISA2 expression by short interfering RNA resulted in the marked suppression of PC cell viability. By contrast, exogenous SHISA2 expression in transfected cells promoted PC cell proliferation, indicating its oncogenic effects. Notably, as a result of cDNA microarray analysis, protein Wnt-5a (WNT5A) was focused upon and the expression of WNT5A was identified to be downregulated in SHISA2-knockdown. Western blot analysis validated significant downregulation of WNT5A by SHISA2 knockdown and upregulation of WNT5A by SHISA2 overexpression. The results of the present study indicated that SHISA2 may affect WNT5A synthesis. Furthermore, the secreted SHISA2 protein was determined in the culture medium of PC cells. We hypothesize that SHISA2 is involved in the regulation of WNT5A and in the aggressiveness of PC via the Wnt signaling pathway through WNT5A. Furthermore, SHISA2 may be a molecular target for cancer drugs, and a useful diagnostic biomarker for the prognosis and therapeutic effect in cancer. PMID- 29344119 TI - Effect of Lipodox in combination with bevacizumab in a patient with a metastatic malignant phyllodes breast tumor: A case report. AB - A 76-year-old female patient with a malignant phyllodes tumor underwent modified radical mastectomy and wide excision. Multiple nodules were observed in the operated wound area. Positron emission tomography-computed tomography (PET-CT) revealed recurrent disease in the left breast, the adjacent left third rib, the left internal mammary region and the left ilium. A novel formulation of bevacizumab (5 mg/m2, first day) in combination with liposomal doxorubicin (Lipodox, 30 mg/m2, second day) was administered for 3 cycles every 2 weeks, and subsequently wide excision was performed. Lipodox (40 mg/m2) was administered for 3 cycles every 3 weeks, starting 4 weeks after the surgery. Follow-up whole body PET-CT scanning, 3 and 6 months later, indicated no sign of residual hypermetabolic malignancy. Malignant phyllodes tumors do not usually respond to chemotherapy or radiotherapy. In the present case report, a novel formulation of bevacizumab in combination with Lipodox was administered as neoadjuvant chemotherapy in a patient with a malignant phyllodes tumor and preoperative tumor shrinkage was achieved, resulting in clear resection margins. PMID- 29344120 TI - Interim 18F-FDG PET/CT improves the prognostic value of S-IPI, R-IPI and NCCN-IPI in patients with diffuse large B-cell lymphoma. AB - The current study aimed to explore whether the efficiency of the standard International Prognostic Index (S-IPI), revised-IPI (R-IPI) and enhanced-IPI (NCCN-IPI) in evaluating the prognosis of patients with diffuse large B-cell lymphoma (DLBCL) may be improved by interim 18F-FDG PET/CT. A total of 185 patients with newly diagnosed DLBCL were enrolled in the current study. All patients underwent interim PET/CT following the 4th cycle of chemotherapy. Patients were divided into different risk groups using S-IPI, R-IPI and NCCN-IPI and further subdivided into risk groups using interim PET/CT. Interpretations were evaluated for 2-year progression-free survival (PFS) and overall survival (OS). With a median follow-up time of 44 months, the 2-year PFS and OS were 60% [95% confidence interval (CI) 53-67%] and 81% (95% CI 74-86%), respectively. Analysis of S-IPI and NCCN-IPI identified no significant difference in PFS and OS between high intermediate and high risk groups. However, there were significant differences in the PFS and OS between the low and low intermediate risk groups (P<0.01). Interim PET/CT was used to redistribute patients in the higher risk group into PET negative and positive groups (P<0.01) and arallel results were observed in the lower risk group. In R-IPI, interim PET/CT identified a significant difference between PFS and OS in the good and poor risk groups but not in the very good risk group. Therefore, the results of the current study indicate that S-IPI, R-IPI and NCCN-IPI are three clinically useful prognostic indexes for patients with DLBCL. Interim PET/CT may improve the prognostic value of S-IPI, R-IPI and NCCN-IPI in predicting 2-year PFS and OS, particularly in patients with a high IPI score. PMID- 29344121 TI - A five-gene based risk score with high prognostic value in colorectal cancer. AB - Colorectal cancer (CRC) is one of the most frequently occurring malignancies worldwide. The outcomes of patients with similar clinical symptoms or at similar pathological stages remain unpredictable. This inherent clinical diversity is most likely due to the genetic heterogeneity. The present study aimed to create a predicting tool to evaluate patient survival based on genetic profile. Firstly, three Gene Expression Omnibus (GEO) datasets (GSE9348, GSE44076 and GSE44861) were utilized to identify and validate differentially expressed genes (DEGs) in CRC. The GSE14333 dataset containing survival information was then introduced in order to screen and verify prognosis-associated genes. Of the 66 DEGs, the present study screened out 46 biomarkers closely associated to patient overall survival. By Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis, it was demonstrated that these genes participated in multiple biological processes which were highly associated with cancer proliferation, drug resistance and metastasis, thus further affecting patient survival. The five most important genes, MET proto-oncogene, receptor tyrosine kinase, carboxypeptidase M, serine hydroxymethyltransferase 2, guanylate cyclase activator 2B and sodium voltage-gated channel a subunit 9 were selected by a random survival forests algorithm, and were further made up to a linear risk score formula by multivariable cox regression. Finally, the present study tested and verified this risk score within three independent GEO datasets (GSE14333, GSE17536 and GSE29621), and observed that patients with a high risk score had a lower overall survival (P<0.05). Furthermore, this risk score was the most significant compared with other predicting factors including age and American Joint Committee on Cancer stage, in the model, and was able to predict patient survival independently and directly. The findings suggest that this survival associated DEGs-based risk score is a powerful and accurate prognostic tool and is promisingly implemented in a clinical setting. PMID- 29344122 TI - Inhibition of breast cancer cell growth by the Pteris semipinnata extract ent 11alpha-hydroxy-15-oxo-kaur-16-en-19-oic-acid. AB - Previous studies have demonstrated strong anti-tumor effects of ent-11alpha hydroxy-15-oxo-kaur-16-en-19-oic-acid (5F), an extract from Pteris semipinnata, in liver, lung, stomach and anaplastic thyroid cancer cells. However, whether 5F inhibits the growth of breast cancer cells remains unclear. The present study assessed the effect of 5F on breast cancer cells. The breast cancer cell lines MCF-7, MDA-MB-231 and SK-BR-3 were each treated with 0, 5, 10, 20 and 40 ug/ml 5F. Morphological changes in the breast cancer cells were assessed using fluorescence microscopy. The proliferation and apoptosis of the breast cancer cells were also examined using Cell Counting Kit-8 and flow cytometry. The levels of B-cell lymphoma 2 (Bcl-2), Bcl-2-associated X apoptosis regulator (Bax), Bcl-2 antagonist/killer (Bak) 1 and caspase-3 in the breast cancer cells were assessed. The results of the present study demonstrated that 5F inhibited the proliferation of MCF-7, MDA-MB-231 and SK-BR-3 breast cancer cells in a concentration- and time dependent manner. Treatment with 5F also induced the apoptosis of breast cancer cells. MDA-MB-231, MCF-7, and SK-BR-3 cells exhibited apoptotic rates of 40.13, 60.44, and 70.49%, respectively, following incubation with 5F for 24 h. Furthermore, 5F significantly decreased the expression of Bcl-2 and increased the expression of Bax, Bak, and caspase-3 in a concentration-dependent manner. The results of the present study revealed that the P. semipinnata extract 5F inhibited the growth of human breast cancer cells in a time- and concentration dependent manner, and that 5F induced apoptosis of human breast cancer cells. PMID- 29344123 TI - Ex vivo model of non-small cell lung cancer using mouse lung epithelial cells. AB - Lung cancer is the most common cause of cancer mortality, however, efficient methods to culture, expand and transform lung epithelial (LE) cells have not been established. In the present study, an efficient ex vivo method was applied to recapitulate lung carcinogenesis using mouse LE cells. A Matrigel-assisted three dimensional culture was used to isolate and selectively expand LE cells from mouse lungs. Purified LE cells were passaged and expanded for at least 2 to 3 months while maintaining epidermal growth factor-dependence. LE cells were also easily transformed by genetic manipulations using retroviral vectors. A SV40 large-T antigen, suppressing p53 and pRB, plus an activated oncogene, such as KrasG12V or EGFRex19del, were required to transform LE cells. Transformed cells formed tumors resembling non-small cell lung cancer (NSCLC) in allograft models and exhibited strong oncogene addiction. This experimental system provided a unique model system to study lung tumorigenesis and develop novel therapeutics against NSCLC. PMID- 29344124 TI - Molecular, biological characterization and drug sensitivity of chidamide resistant non-small cell lung cancer cells. AB - Chidamide, a histone deacetylase (HDAC) inhibitor, has been applied in clinical trials for various types of hematological and solid tumors. Although acquired resistance is common in chemotherapy, the mechanism of resistance to chidamide is poorly characterized. The goal of the present study was to explore, in detail, the mechanism for the induced resistance to chidamide, and investigate a potential cross-resistance to other chemotherapeutic drugs. A549 cells were exposed to gradually increasing chidamide concentrations to establish a chidamide resistant non-small cell lung cancer cell line (A549-CHI-R). The IC50 for chidamide, the proliferation inhibition rate, the total HDAC activity and the HDAC protein level were determined by an MTT assay, colony formation, a fluorometric HDAC activity assay and western blotting, respectively. Overexpression of the HDAC1 gene and HDAC1 gene-knockdown were achieved via plasmid transfection. A549-CHI-R cells demonstrated increased resistance to chidamide (8.6-fold). HDAC1 protein degradation was inhibited and HDAC activity was significantly higher in the A549-CHI-R cells relative to the parental A549 cells. A549-CHI-R cells demonstrated cross-resistance to paclitaxel, vinorelbine and gemcitabine, but not to cisplatin (CDDP) or 5-fluorouracil (5-FU). These results indicated that HDAC1 may be associated with resistance to chidamide, and HDAC1 may therefore be a predictive marker for chidamide sensitivity in cancer. In addition, A549-CHI-R cells remained sensitive to 5-FU and CDDP, indicating a potential strategy for cancer therapy. PMID- 29344125 TI - miR-145-5p inhibits epithelial-mesenchymal transition via the JNK signaling pathway by targeting MAP3K1 in non-small cell lung cancer cells. AB - Lung cancer is one of the most common types of tumors and the leading cause of cancer-associated mortality in the world. Additionally, non-small cell lung cancer (NSCLC) accounts for ~80% of all lung cancer cases. Epithelial-mesenchymal transition (EMT) is an important cell biological process, which is associated with cancer migration, metastasis, asthma and fibrosis in the lung. In the present study, it was revealed that miR-145-5p was able to suppress EMT by inactivating the c-Jun N-terminal kinase (JNK) signaling pathway in NSCLC cells. Mitogen-activated protein kinase kinase kinase 1 (MAP3K1) was predicted and confirmed to be a novel target of miR-145-5p. Overexpression of MAP3K1 was able to reverse the inhibition of EMT induced by miR-145-5p via the JNK signaling pathway. Overall, the results revealed that miR-145-5p inhibits EMT via the JNK signaling pathway by targeting MAP3K1 in NSCLC cells. PMID- 29344126 TI - microRNA-34a overexpression inhibits cell migration and invasion via regulating SIRT1 in hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) remains one of the most common types of malignancy with high mortality and morbidity rates. Previous studies have suggested that microRNAs (miRs) serve pivotal functions in various types of tumor. The aim of the present study was to assess the association between miR-34a expression and HCC cell migration and invasion, and the potential underlying mechanisms. The miR 34a overexpression vector or scramble control was transfected into human Hep3B and Huh7 cell lines. Transwell assays, and Matrigel and wound healing assays were used to detect the effects of miR-34a expression on HCC cell invasion and migration, respectively. The expression of miR-34a and the mRNA expression of other associated proteins were detected using quantitative reverse transcription polymerase chain reaction, and protein levels were measured using western blot analysis. Compared with the control, miR-34a expression was significantly downregulated in Hep3B and Huh7 cells, but this was reversed by the transfection with exogenous miR-34a (P<0.01). The number of migrated or invaded cells was significantly reduced by the overexpression of miR-34a in Hep3B or Huh7 cells (P<0.01). The expression of sirtuin 1 was upregulated, while the level of acetylate-p53 was downregulated by overexpression of miR-34a. Taken together, the results of the present study suggested that the overexpression of miR-34a may have suppressed HCC metastasis via inhibited cell migration and invasion. PMID- 29344127 TI - Mechanisms of peritoneal dissemination in gastric cancer. AB - Peritoneal dissemination is the most frequent metastatic pattern of gastric cancer, but the mechanisms underlying peritoneal dissemination are yet to be elucidated. Paget's 'seed and soil' hypothesis is recognized as the fundamental theory of metastasis. The 'seeding' theory proposes that the formation of peritoneal dissemination is a multistep process, including detachment from the primary tumour, transmigration and attachment to the distant peritoneum, invasion into subperitoneal tissue and proliferation with blood vascular neogenesis. In the present review, the progress of each step is discussed. Milky spots, as a lymphatic apparatus, are indicative of lymphatic orifices on the surface of the peritoneum. These stomata are open gates for peritoneal-free cancer cells to migrate into the submesothelial space. Therefore, milky spots provide suitable 'soil' for cancer cells to implant. Other theories have also been proposed to clarify the peritoneal dissemination process, including the transvessel metastasis theory, which suggests that the peritoneal metastasis of gastric cancer develops via a vascular network mediated by hypoxia inducible factor 1alpha. PMID- 29344128 TI - Three-dimensional cell culture: A powerful tool in tumor research and drug discovery. AB - In previous years, three-dimensional (3D) cell culture technology has become a focus of research in tumor cell biology, using a variety of methods and materials to mimic the in vivo microenvironment of cultured tumor cells ex vivo. These 3D tumor cells have demonstrated numerous different characteristics compared with traditional two-dimensional (2D) culture. 3D cell culture provides a useful platform for further identifying the biological characteristics of tumor cells, particularly in the drug sensitivity area of the key points of translational medicine. It promises to be a bridge between traditional 2D culture and animal experiments, and is of great importance for further research in the field of tumor biology. In the present review, previous 3D cell culture applications, focusing on anti-tumor drug susceptibility testing, are summarized. PMID- 29344129 TI - Update on radionuclide therapy in oncology. AB - Unstable isotopes and their capacity to emit ionizing radiation have been employed in clinical practice not only for diagnostic, but also for therapeutic purposes, with significant contribution in several fields of medicine and primarily in the management of oncologic patients. Their efficacy is associated with their ability to provide the targeted delivery of ionizing radiation for a determined duration. These compounds can be used for curative or palliative treatment, as well as for a diagnostic-therapeutic (theranostic) approach. This review summarises the most recent trends in radionuclide treatment for several malignancies, including prostate cancer, neuroendocrine tumours, and hematological and thyroid malignancies, in which radionuclide-based therapies have been employed with high effectiveness. PMID- 29344130 TI - Potential functions and implications of circular RNA in gastrointestinal cancer. AB - Circular RNAs (circRNAs) are a novel type of endogenous non-coding RNA that have gained attention from researchers for their involvement in multiple biological processes. circRNAs are ubiquitously expressed in eukaryotic cells and regulate gene expression at the transcriptional or post-transcriptional level by interacting with microRNAs (miRNAs) or other molecules. The present review provides an overview of circRNAs, as well as insights into their roles in the development and progression of gastrointestinal cancer. Furthermore, combined with reported data, the present review investigates the potential of circRNAs to become diagnostic or predictive biomarkers of gastrointestinal cancer and may provide novel insights into the treatment of associated cancer types. PMID- 29344131 TI - A novel variant translocation (1;9)(p22;q34) resulting in a DEK/NUP214 fusion gene in a patient with acute myeloid leukemia: A case report. AB - The present case report describes a 46-year-old female patient diagnosed with M4 acute myeloid leukemia (AML), accompanied with a t(1;9)(p22;q34) chromosomal abnormality. Transcriptome sequencing identified a DEK proto-oncogene (DEK)/nucleoporin (NUP)214 fusion gene, which results from the t(6;9)(p23;q34) chromosomal translocation. Polymerase chain reaction analysis and fluorescence in situ hybridization were used to verify the existence of the DEK/NUP214 fusion gene. Few patients with AML with the t(6;9)(p23;q34) chromosomal translocation have been reported to have other chromosomal or karyotype changes. To our knowledge, no AML patient with the DEK/NUP214fusion gene but without the classic t(6;9)(p23;q34) translocations had been reported until now. The prognosis of AML cases with the DEK/NUP214 fusion gene is poor. The rate of complete remission is ~65% (71% in children, 58% in adult patients), while the estimated 5-year survival rate is 28% for children and 9% for adults. The 2008 revision of World Health Organization classification have defined the DEK/NUP214 mutation as a recurrent genetic abnormality of AML. The overall survival of the patient in the current report was ~29 months, and they relapsed twice. To the best of our knowledge, this is the first report of at(1;9)(p22;q34) variant translocation that results in expression of the DEK/NUP214 fusion gene. PMID- 29344132 TI - Aberrant NLRP3 inflammasome associated with aryl hydrocarbon receptor potentially contributes to the imbalance of T-helper cells in patients with acute myeloid leukemia. AB - Acute myeloid leukemia (AML) is a hematological malignancy in which the immune response serves a pivotal role in progression. Aryl hydrocarbon receptor (AHR) is involved in the modulation of the immune system, particularly in the differentiation of T-helper cell (Th) subsets. Although the NLR family pyrin domain-containing 3 (NLRP3) inflammasome has been implicated as essential in the pathogenesis of autoimmune and inflammatory diseases, the role it serves in the development of AML remains unknown. Therefore, in order to identify and describe the possible roles of AHR, as well as NLRP3 inflammasome, in the pathogenesis of AML and their relationship with Th subsets (Th1 Th22), the present study investigated the mRNA expression levels of AHR and NLRP3 inflammasome molecules in the peripheral blood and bone marrow. Concentrations of plasma IL-18 were also investigated in peripheral blood by ELISA, as well as the proportions of Th22 and Th1. In the present study, there were three groups: Newly diagnosed (ND) patients; complete remission (CR); and normal controls. A markedly increased expression of NLRP3 inflammasome molecules in bone marrow mononuclear cells (BMMCs) from newly diagnosed (ND) patients compared with patients in complete remission (CR) was identified. NLRP3 inflammasome molecules were also observed to be aberrantly expressed in peripheral blood (PB) mononuclear cells (PBMCs), accompanied with aberrant interleukin (IL)-18 levels in PB plasma. The relative level of IL-18 mRNA became normal after the ND patients with AML achieved CR. In bone marrow, the expression of AHR was significantly higher in ND patients than in CR patients. Furthermore, the expression level of NLRP3 inflammasome molecules was significantly correlated with AHR expression in patients with AML. In the Th subsets, a significantly increased proportion of Th22 in PB from ND patients compared with CR patients or controls was identified, accompanied with decreased Th1. It was concluded that the NLRP3 inflammasome, associated with AHR, was involved in the development of AML and may have influenced the differentiation of Th subsets. PMID- 29344133 TI - Improved treatment of early small hepatocellular carcinoma using sorafenib in combination with radiofrequency ablation. AB - Small hepatocellular carcinoma is an important leading cause of death amongst cancer patients, our study was designed in order to test the hypothesis that radiofrequency ablation (RFA) combined with a chemotherapeutic drug would improve the outcome for patients. Two groups of patients presenting early small hepatocellular carcinoma were treated with either conventional RFA alone (50 individuals in the control group), or with a combination of RFA and oral sorafenib (40 individuals in an observation group). Individual clinical and laboratory evaluations were done during an average follow-up time of 35 months, and all the data recorded was used to compare results of both treatment approaches. Tumor-free survival, relapse rate and survival rate, RFA interval and number of treatments, overall efficacy and the incidence of complications were analyzed. Serum levels of vascular endothelial growth factor (VEGF), connective tissue growth factor (CTGF), hypoxia inducible factor-1alpha (HIF-1alpha) and osteopontin (OPN) were measured and compared. Our results show that the patients in the treatment group had statistically significant prolonged tumor-free survival, decreased relapse and increased survival rates. Also, the patients in the treatment group had significantly more prolonged average intervals of RFA and a lower number of treatments. Furthermore, the overall efficacy in the treatment group was increased, yet the incidence of complications was similar between both groups. Moreover, the serum levels of known tumorigenic factors VEGF, CTGF, HIF 1alpha and OPN, which were similar between both groups before treatment, improved more markedly after the treatment in the observation group patients. Based on these findings, we propose that sorafenib in combination with percutaneous RFA is safe and efficacious, and a superior treatment for early small hepatocellular carcinoma. Larger studies are needed to corroborate our results. PMID- 29344134 TI - A novel classification system for the evaluation and reconstruction of oral defects following oncological surgery. AB - Accurate evaluation of oral tissue defects following oncological surgery is necessary for the subsequent reconstruction. However, there is currently no effective classification system for oral defects in the clinical setting. The present study therefore developed a clinical classification system for the evaluation and reconstruction of oral defects. A retrospective cohort study was performed. A two-dimensional classification system based on coronal computed tomography/magnetic resonance imaging was developed and validated by 145 cases with oral defects. Oral defects could be classified into 6 types (I-VI) horizontally and 2 classes (a and b) vertically. The proportion of the various types was as follows: Type I, 35.9%; type II, 21.4%; type III, 23.4%; type IV, 4.8%; type V, 2.1%; and type VI, 12.4%. Among them, 91 cases (62.8%) were class a and 54 cases (37.2%) were class b. Type Ia-Va represented the unilateral 1-5 subsites involving superficial oral defects without mandibular continuity destruction (88 cases, 60.7%). Type Ib-Vb (+M) represented the unilateral 1-5 subsites involving deep oral defects with segmental mandibular continuity destruction (38 cases, 26.2%). Type I-V (+S) represented the unilateral through and through oral defects with cheek skin involvement (10 cases, 6.9%). Type VI represented bilateral oral defects (18 cases, 12.4%). The present classification system for the evaluation of the oral defects was simple and practical, and could identify the common types of oral defects and guide the reconstruction. PMID- 29344135 TI - Identification of differentially expressed genes in oral squamous cell carcinoma TCA8113 cells. AB - Previous studies have demonstrated that cancer cells with increased levels of aldehyde dehydrogenase 'bright' activity (ALDHbr) exhibit stem cell properties compared with cells exhibiting decreased ALDH activity (ALDHlow). To screen possible biomarkers of cancer stem cells in tongue squamous cell carcinoma, ALDHbr and ALDHlow cells were isolated from the tongue squamous cell carcinoma TCA8113 cell line, and suppression subtractive hybridization was performed to identify differentially expressed genes in the two subpopulations. A total of 240 positive clones were randomly selected for sequencing and were functionally characterized using bioinformatical tools. The results of the present study identified the differential expression of 104 clones, 62 of which corresponded to known genes and 42 of which corresponded to unknown genes. Cluster analysis revealed that the known genes were involved in the regulation of the cell cycle and cell differentiation. In addition, analysis of 10 signaling pathways revealed that genes were markedly altered in the ALDHbr cell subpopulation. Additional study is required to identify the function that these genes serve in the biomolecular regulatory mechanisms of cancer stem cells and to assist in explaining the biological behavior of oral squamous cell carcinoma. PMID- 29344136 TI - Clinical outcome of extended-field irradiation vs. pelvic irradiation using intensity-modulated radiotherapy for cervical cancer. AB - The aim of the present study was to evaluate the distinctions in survival and toxicity between patients with cervical cancer with common iliac node or para aortic node involvement, who were treated with extended-field intensity-modulated radiotherapy (EF-IMRT) and patients with or without lower involved pelvic nodes, who were treated with pelvic IMRT. A total of 55 patients treated with EF-IMRT and 52 patients treated with pelvic IMRT at the Sun Yat-Sen University Cancer Center (Guangzhou, China) were retrospectively analyzed. Patients treated with EF IMRT had the highest level of lymph node involvement to the para-aortic or common iliac nodes, while patients treated with pelvic IMRT had no para-aortic or common iliac nodes involved (P<0.001). The median follow-up time was 29.5 months. The 3 year overall survival (OS) rates of EF-IMRT and pelvic IMRT were 79.4 and 82.3% (P=0.45), respectively, and the 3-year disease-free survival (DFS) rates of EF IMRT and pelvic IMRT were 61.0 and 73.7% (P=0.55), respectively. Cox's regression analysis revealed that EF irradiation was a protective prognostic factor for OS and DFS. A total of 16 patients in the EF-IMRT group and 13 patients in the pelvic IMRT group experienced treatment failure (P=0.67), with the patterns of failure being the same for the two groups (P=0.88). The cumulative incidence of grade 3 and 4 acute toxicities in the EF-IMRT group was 34.5%, in comparison with 19.2% in the pelvic group (P=0.048). The results of the present study suggest that patients with cervical cancer with grossly involved common iliac or para aortic nodes should be electively subjected to EF irradiation to improve the survival and alter patterns of recurrence. Notably, EF irradiation delivered via IMRT exhibits an increased toxicity incidence, however, this remains within an acceptable range. PMID- 29344137 TI - The association between aquaporin-1 expression, microvessel density and the clinicopathological features of hepatocellular carcinoma. AB - The present study aimed to evaluate the effects of aquaporin-1 (AQP1) level and intratumoral microvessel density (IMD) on the clinicopathological features of patients with hepatocellular carcinoma (HCC). The AQP1 expression levels, IMD and AQP1/IMD ratios in patients with HCC were measured using a semi-quantitative immunohistochemical technique. The association between these features and clinicopathological variables were evaluated. The prognostic impact of AQP1 and IMD on overall survival (OS), and 5-year disease-free survival (DFS) of HCC patients was investigated retrospectively. P<0.05 was considered to indicate a statistically significant difference. A total of 90 cases of HCC were included in the present study. AQP1 was markedly expressed in the membranes of microvessels and small vessels, but seldom in hepatocellular carcinoma cells. Blood vessels in the tumors were markedly stained by anti-cluster of differentiation 34 antibody. AQP1 expression and IMD was significantly correlated with tumor size, histologic grade, Child-Pugh classification, microvascular invasion and tumor-node metastasis (TNM) stage (P<0.05). Concurrently, for the 5-year DFS and OS, a larger tumor size, poorly differentiated histological grade, B and C Child-Pugh classification, presence of microvascular invasion, high TNM stage, a high AQP1 expression and a high IMD were significant risk factors for mortality. Multivariate analysis revealed that TNM stage and IMD were independent unfavorable prognostic markers for 5-year DFS (P=0.049 and P=0.025, respectively) and OS (P=0.043 and P=0.042, respectively). These data suggest that high AQP1 expression and IMD are associated with tumor progression and prognosis in HCC. The IMD level may serve as an independent indicator for the 5-year DFS and OS. PMID- 29344138 TI - Clinical and genetic analysis of tuberous sclerosis complex-associated renal angiomyolipoma in Chinese pedigrees. AB - Tuberous sclerosis complex-associated renal angiomyolipoma (TSC-RAML) confers a high risk of bleeding and even mortality. However, data on TSC-RAML in Chinese pedigrees is extremely lacking. The present study aimed to investigate its clinical and genetic characteristics by obtaining a detailed medical history from 6 probands and their family members, and reassessing blood tests, computed tomography and renal dynamic imaging examinations that were conducted in the TSC RAML patients. The TSC1/TSC2 mutation was detected in 2 families. A total of 3 TSC-RAML patients underwent partial nephrectomy due to a high bleeding risk, and the other 2 were treated with everolimus. The remaining 6 TSC-RAML patients received no clinical intervention and only had clinical follow-uzp. It was found that nearly 37% (18/49) were TSC patients, with the mean +/- standard deviation diagnostic age being 34.22+/-17.73 years old in the 6 pedigrees, 61% (11/18) of whom suffered from TSC-RAML. In the 11 TSC-RAML patients, the maximum diameter of the tumor ranged between 1.20 and 32.50 cm (mean +/- standard deviation, 11.48+/ 8.40 cm), the unilateral glomerular filtration rate ranged between 27.20 and 60.10 ml/min (mean +/- standard deviation, 42.55+/-9.73 ml/min), the serum creatinine level ranged between 40.00 and 90.00 umol/l (mean +/- standard deviation, 64.84+/-16.15 umol/l) and the hemoglobin concentration ranged between 76.00 and 140.00 g/l (mean +/- standard deviation, 107.73+/-21.04 g/l). Pathogenic mutations of TSC1 (c.733C>T) and TSC2 (c.788_789insC) were detected in family B and C, respectively, as well as certain non-pathogenic mutations, with the maximum diameter of TSC-RAML being 0 cm and 10.3 cm in the two patients from family B and 16 cm and 1.2 cm in the two patients from family C. Expression of phosphorylated-mechanistic target of rapamycin was determined in the TSC-RAML tissues by immunohistochemistry. The maximum diameter of the tumor decreased by 4.90 and 5.30 cm, respectively, in the 2 patients treated with everolimus after 3 months. In conclusion, TSC cannot be easily diagnosed due to its variable characteristics. Growth of TSC-RAML may increase the bleeding risk and reduce the level of hemoglobin, but it does not greatly affect renal function. Individual differences in tumor dimensions existed even with the same pathogenic mutation, except for cases of coexistent non-pathogenic mutations. Everolimus treatment appears to be able to significantly reduce the size of TSC-RAML. PMID- 29344139 TI - NLS-RARalpha is a novel transcriptional factor. AB - Acute promyelocytic leukemia (APL) is characterized by the presence of the promyelocytic leukemia (PML)-retinoic acid receptor-alpha (RAR-alpha) fusion protein. PML-RARalpha can be cleaved by neutrophil elastase (NE) in several positions in cells in the promyelocytic stage, nuclear location signal (NLS) negative PML and NLS-RARalpha may be the products of PML-RARalpha by NE. The function of NLS-RARalpha may be affected by the addition of NLS, which would alter its localization in cells, as the role of NLS is to identify proteins for transport to the nucleus. Preliminary experiments demonstrated that the overexpression of NLS-RARalpha in HL-60 cells could promote cellular proliferation and inhibit cellular differentiation. Following treatment with all trans retinoic acid (ATRA), the degree of cellular differentiation was enhanced. In the present study, the localization of NLS-RARalpha was identified and its activity as a novel transcriptional factor was assessed, which may be critical in the development of APL. The location of NLS-RARalpha was detected in the nucleus and cytoplasm by indirect immunofluorescence and western blot analysis, with expression in the nucleus revealed to be increased compared with that in the cytoplasm. Next, native-PAGE was performed and NLS-RARalpha and RXRalpha were revealed to form heterodimers in the nucleus. In addition, co-immunoprecipitation revealed an interaction between NLS-RARalpha and retinoid X receptor-alpha (RXRalpha). An electrophoresis mobility shift assay (EMSA) indicated that NLS RARalpha could bind retinoic acid response elements (RAREs) in the presence of ATRA. Indeed, NLS-RARalpha could bind RAREs just as WTRARalpha could, including the RAREs direct repeat-2 (DR-2) and DR-5. In addition, results from a luciferase reporter gene assay demonstrated that NLS-RARalpha could mediate the activity of RAREs that it bound. Together, these results indicated that NLS-RARalpha may be a novel transcription factor that contributes to leukemogenesis by competitively binding RAREs as heterodimers with RXRalpha, just as PML-RARalpha does, thus repressing the gene transcription essential for myeloid differentiation. These findings indicate the potential role of NLS-RARalpha targeted therapy in APL. PMID- 29344140 TI - Familial genetic tuberous sclerosis complex associated with bilateral giant renal angiomyolipoma: A case report. AB - Tuberous sclerosis complex (TSC) is an autosomal dominant disease involving multiple organs, but there are a limited number of reports on family TSC. In the present report, a case of a 52-year-old female with a familial genetic TSC, associated with bilateral giant renal angiomyolipoma, was described. The mother, second elder brother and daughter of the patient all exhibited TSC, but the clinical manifestations, and therapeutic prognosis between the family members were not the same. The present case report aimed at identifying an effective diagnostic method and treatment through additional study of familial genetic TSC, in order to prolong and improve the quality of life for patients with TSC. According to the present case and relevant literature reviews, it is suggested that fetal gene detection during pregnancy could prevent the passing of this disease onto further generations. Furthermore, early application of drug treatment may control the development of the disease in diagnosed patients. The combination of classical treatments with a small dose of mammalian target of rapamycin inhibitors is the typical recommendation, which may control the development of the disease more effectively and decrease adverse side-effects. PMID- 29344141 TI - The expression of S100B protein in serum of patients with brain metastases from small-cell lung cancer and its clinical significance. AB - The objective of the present study was to investigate the expression of S100B protein in serum of patients with brain metastases from small cell lung cancer (SCLC), and its clinical significance. A total of 138 patients with SCLC were selected from June 2013 to December 2015. Simultaneously, 138 healthy adult volunteers (healthy controls) were selected in the medical examination center of People's Hospital of Rizhao. Among the 138 patients with SCLC, 48 had liver metastases and 44 had brain metastases. Of the remaining 46 patients, 20 were initially diagnosed with SCLC and 26 underwent surgery and postoperative chemotherapy. The levels of serum S100B in patients and healthy controls were measured by ELISA, and analyzed by SPSS 20.0 statistical software. The serum S100B protein levels in patients with SCLC were significantly higher than those in healthy controls (p<0.05). Among the subgroups of patients with SCLC, the levels of serum S100B in patients with brain metastases were significantly higher than in the other subgroups (p<0.05). No significant differences were found between the other subgroups, except for the brain metastases group. We found that serum S100B protein expression levels were significantly reduced in patients with brain metastases after cobalt-60 radiotherapy (p<0.05). During follow-up, we found that higher expression of S100B protein was usually associated with poorer prognosis, higher mortality rate at 1 year, and lower survival rate. In conclusion, S100B protein can serve as a serological marker for brain metastases from SCLC, which provides important theoretical support for early detection of brain metastases. PMID- 29344142 TI - Isolation and identification of tumor-initiating cell properties in human gallbladder cancer cell lines using the marker cluster of differentiation 133. AB - The present study aimed to isolate and identify the properties of the cluster of differentiation (CD)133+ subset in human gallbladder cancer cells. The CD133+ and CD133- subpopulations of the GBC-SD cell line were separated using immunomagnetic separation, and the biological features of the two subpopulations were analyzed in vitro and in vivo. In particular, the present study aimed to determine whether the two subpopulations were resistant to anti-tumor reagents and to identify the underlying molecular mechanisms involved. Following cell sorting of GBC-SD cells using immunomagnetic beads, 90.2+/-2% of cells were identified as CD133+. Immunofluorescence confirmed that CD133 was expressed at higher levels in the Cd133+ group compared with the CD133- group. The proliferation of the CD133+ group was significantly increased compared with the CD133- group in vitro and in vivo. Following treatment with fluorouracil or gemcitabine, cells in the CD133+ group exhibited a decreased sensitivity to these drugs. The number of transmembrane cells was significantly increased in the CD133+ group compared with the CD133- group. In addition, the expression levels of ATP binding cassette subfamily G member 2, CD44, C-X-C motif chemokine receptor 4 (CXCR4), phosphorylated-protein kinase B (Akt) and CD133 in the CD133+ group were significantly increased, compared with those in the CD133- group. In CD133+ GBC SD cells, stromal cell-derived factor 1alpha (SDF-1alpha) or treatment with AMD3100, an inhibitor of CXCR4, promotes or suppresses the SDF-1alpha/CXCR4 axis, respectively, resulting in increased or decreased CD133 expression through the Akt signaling pathway. Inhibition of the Akt signaling pathway resulted in decreased CD133 expression in GBC-SD cells. Immunomagnetic beads were successfully used for isolation of the CD133+ subset from GBC-SD cells. Furthermore, the CD133+ subset revealed an increased potential for tumor formation, cell proliferation, invasion and resistance to chemotherapeutic agents with expression of stem cell-associated genes. Therefore, in GBC-SD cells, the CXCR4/Akt/CD133 signaling pathways may be activated. PMID- 29344143 TI - Function of cell-cycle regulators in predicting silent pituitary adenoma progression following surgical resection. AB - The present study investigated the use of cell-cycle regulators for predicting the progression of silent pituitary adenoma (SPA) following surgical resection, via immunohistochemical analysis of tumor samples obtained by surgical resection. The medical records of patients diagnosed with SPA between January 2000 and December 2013 in the Samsung Changwon Hospital, Sungkyunkwan University School of Medicine (Changwon, South Korea) were reviewed. Immunohistochemical staining was performed on sections of the archived, paraffin-embedded tissues obtained by surgery, with all tissues stained for cell-cycle regulatory proteins p16, p15, p21, cyclin-dependent kinase (CDK)4, CDK6, retinoblastoma protein (pRb) and cyclin D1, as well as E3 ubiquitin-protein ligase mib1 (MIB-1) antigen and p53. The primary end-point was to investigate the expression of cell-cycle regulatory proteins in SPA. The secondary end-point was to estimate the progression-free survival of patients with SPA following surgical resection and to identify its association with the expression of cell-cycle regulatory proteins. Of the 127 SPA samples, 44 (34.6%) were from patients with progression during a mean follow-up period of 62.4 months (range, 24.2-118.9 months). Immunohistochemical overexpression was identified in 61 samples (48.0%) for p16, 38 samples (29.9%) for p15, 19 samples (15.0%) for p21, 49 samples (38.6%) for CDK4, 17 samples (13.4%) for CDK6, 57 samples (44.9%) for pRb and in 65 samples (51.2%) for cyclin D1. Multivariate analysis revealed that null cell adenoma [95% confidence interval (CI), 0.276-0.808], somatotroph SPAs (95% CI, 1.296-3.121), corticotroph SPAs (95% CI, 1.811-4.078), pluripotent SPAs (95% CI, 2.264-5.194), decreased expression of p16 (95% CI, 2.724-5.588), overexpression of pRb (95% CI, 2.557 5.333), cyclin D1 (95% CI, 1.894-4.122) and MIB-1 (95% CI, 1.561-4.133), increased mitotic index (95% CI, 1.228-4.079), increased p53 expression (95% CI, 1.307-4.065) and invasion into the cavernous sinus (95% CI, 3.842-7.502) predicted SPA progression following resection. The results of the present study suggested that specific cell-cycle regulators, including p16, cyclin D1 and pRb, were associated with SPA progression. PMID- 29344144 TI - Melanoma differentiation-associated gene-7 suppresses human gastric cancer cell invasion and migration. AB - Gastric cancer is one of the most common types of cancer in the world. Patients with gastric cancer often respond poorly to conventional chemotherapies, therefore more comprehensive therapy is required. Melanoma differentiation associated gene-7 (MDA-7), also termed interleukin-24, is a potent tumor suppressor gene. Numerous studies have demonstrated that MDA-7 suppresses the growth and induces the apoptosis of cancer cells. In the present study, the MDA-7 gene was transfected into human gastric cancer AGS cells using adenovirus. Transwell and wound healing assays were performed to evaluate AGS cell invasion and migration, respectively. Western blotting was used to detect the expression of epithelial (E)-cadherin, cluster of differentiation (CD)44 and matrix metalloproteinase (MMP)-2 and MMP-9 proteins. A recombinant virus package was successfully constructed, and it was verified using western blotting that exogenous MDA-7 was highly expressed in the AGS cells. MDA-7 overexpression inhibited invasion and migration, decreased CD44, MMP-2 and MMP-9 expression, and increased epithelial (E-)cadherin expression in the AGS cells. Results of the present study revealed that MDA-7 inhibits gastric cancer invasion and metastasis by inhibiting CD44, MMP-2 and MMP-9 expression and by promoting E-cadherin expression. PMID- 29344145 TI - MicroRNA-320 inhibits cell proliferation and invasion in breast cancer cells by targeting SOX4. AB - Dysregulation of microRNAs (miRs) can contribute to cancer development and progression. In the present study, the function and underlying molecular mechanisms of miR-320 in breast cancer tumorigenesis and progression were investigated. The results of a reverse transcription-quantitative polymerase chain reaction analysis demonstrated that miR-320 was frequently downregulated in breast cancer tissues compared with adjacent normal tissues. In addition, knockdown of miR-320 in breast cancer cell lines promoted cell proliferation and invasion in vitro, whereas miR-320 overexpression had the opposite effect. Furthermore, a Dual-Luciferase reporter assay indicated that SRY-box 4 (SOX4) is a direct target of miR-320, and the restoration of SOX4 in miR-320-overexpressing cells attenuated the tumor-suppressive effects of miR-320. Collectively, these results indicated that miR-320 acts as a tumor suppressor in breast cancer tumorigenesis and progression. PMID- 29344146 TI - Integrated microRNA-mRNA analyses of distinct expression profiles in follicular thyroid tumors. AB - MicroRNAs (miRNAs/miRs) are small non-coding RNAs identified in plants, animals and certain viruses; they function in RNA silencing and post-transcriptional regulation of gene expression. miRNAs also serve an important role in the pathogenesis, diagnosis and treatment of tumors. However, few studies have investigated the role of miRNAs in thyroid tumors. In the present study, the expression of miRNA and mRNA was compared between follicular thyroid carcinoma (FTC) and follicular thyroid adenoma (FA) samples, and then miRNA-mRNA regulatory network analysis was performed. Microarray datasets (GSE29315 and GSE62054) were downloaded from the Gene Expression Omnibus, and profiling data were processed with R software. Differentially expressed miRNAs (DEMs) and differentially expressed genes (DEGs) were determined, and Gene Ontology enrichment analysis was subsequently performed for DEGs using the Database for Annotation, Visualization and Integrated Discovery. The target genes of the DEMs were identified with miRWalk, miRecords and TarMir databases. Network analysis of the DEMs and DEMs targeted DEGs was performed using Cytoscape software. In GSE62054, 23 downregulated and 9 upregulated miRNAs were identified. In GSE29315, 42 downregulated and 44 upregulated mRNAs were identified. A total of 36 miRNA-gene pairs were also identified. Network analysis indicated a co-regulatory association between miR-296-5p, miR-10a, miR-139-5p, miR-452, miR-493, miR-7, miR 137, miR-144, miR-145 and corresponding targeted mRNAs, including TNF receptor superfamily member 11b, benzodiazepine receptor (peripheral) -associated protein 1, and transforming growth factor beta receptor 2. These results suggest that miRNA-mRNAs networks serve an important role in the pathogenesis, diagnosis and treatment of FTC and FA. PMID- 29344147 TI - Systematic analysis of the molecular mechanism of microRNA-124 in hepatoblastoma cells. AB - The present study aimed to identify the molecular mechanisms of microRNA-124 (miRNA-124/miR-124) in hepatoblastoma. The GSE6207 microarray dataset, obtained from the Gene Expression Omnibus database, included samples extracted from HepG2 cells transfected with miR-124 duplex (the experimental group) or negative control (the control group) at 4, 8, 16, 24, 32, 72 and 120 h after transfection. Differentially expressed genes (DEGs) were screened between the two groups. miR 124 activity was inferred based on the expression of its target genes. The mRNAs targeted by miR-124 were predicted and a miR-124-target mRNA network was constructed. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed for the target genes. The number of DEGs was highest at 72 h. The experimental group had higher miR-124 activity than that of the control group at 4, 8, 16, 24 and 120 h. Small GTPase-mediated signal transduction and Ras protein signal transduction were significant GO terms enriched with syndecan binding protein (SDCBP), Ras homolog family member G (RHOG) and Rho-GDP dissociation inhibitor-alpha (ARHGDIA). Regulation of actin cytoskeleton, D-glutamine and D-glutamate metabolism, and axon guidance were significant pathways. Axon guidance pathway was associated with neuropilin (NRP1), MET proto-oncogene, receptor tyrosine kinase (MET) and semaphorin 7A, GPI membrane anchor (SEMA7A). Small GTPase-mediated signal transduction, Ras protein signal transduction, regulation of actin cytoskeleton pathway, D-glutamine and D glutamate metabolism pathway, axon guidance pathway, SDCBP, RHOG, ARHGDIA, NRP1, SEMA7A, and MET may be implicated in the underlying mechanisms of miR-124 overexpression in hepatoblastoma. PMID- 29344148 TI - Identification of potentially critical differentially methylated genes in nasopharyngeal carcinoma: A comprehensive analysis of methylation profiling and gene expression profiling. AB - The present study aimed to identify potentially critical differentially methylated genes associated with the progression of nasopharyngeal carcinoma (NPC). Methylation profiling data of GSE62336 deposited in the Gene Expression Omnibus database were used to identify differentially methylated regions (DMRs) and differentially methylated CpG islands (DMIs). Concurrently, differentially expressed genes (DEGs) were identified using a meta-analysis of three gene expression datasets (GSE53819, GSE13597 and GSE12452). Subsequently, methylated DEGs were identified by comparing DMRs and DEGs. Furthermore, functional associations of these methylated DEGs were analyzed via constructing a functional network using GeneMANIA prediction server. In total, 1,676 hypermethylated genes, 28 hypomethylated genes, 17 DMIs and 2,983 DEGs (1,655 upregulated and 1,328 downregulated) were identified. Among these DEGs, 135 downregulated genes were hypermethylated; of these, dual specificity phosphatase 6 (DUSP6) and tenascin XB (TNXB) contained DMIs. In the functional network, 154 genes and 1,651 association pairs were included. DUSP6 was predicted to exhibit genetic interactions with other hypermethylated DEGs such as malic enzyme 3 and ST3 beta-galactoside alpha 2,3-sialyltransferase 5; TNXB was predicted to be co-expressed with a set of hypermethylated DEGs, including EPH receptor B6, aldehyde dehydrogenase 1 family, member L1 and glutathione peroxidase 3. The hypermethylated DEGs may be involved in the progression of NPC, and they may become novel therapeutic targets for NPC. PMID- 29344149 TI - Hepatoma-derived growth factor functions as an unfavorable prognostic marker of human gliomas. AB - Hepatoma-derived growth factor (HDGF) regulates various cellular processes involved in the onset and development of tumors. To evaluate the role of HDGF in human gliomas, western blotting analysis, immunohistochemistry staining and reverse transcription-quantitative polymerase chain reaction were performed to detect HDGF protein and mRNA expression levels in glioma and intractable epileptic brain tissue. Various clinicopathological characteristics, including age, gender, World health Organization grade, HDGF expression level, Karnofsky performance Status (KPS) and Ki-67 index were obtained from medical records. The correlation between HDGF expression and these clinicopathological characteristics was statistically evaluated. Following this, multivariate liner regression was used to evaluate their effect on patient survival time. HDGF expression, at the protein and mRNA levels, was observed to be more upregulated in glioma tissues compared with intractable epileptic brain tissue without tumor. Furthermore, the level of HDGF expression was positively associated with the grade of malignancy [grades II~IV, Ki-67 index >=20% or KPS <80 (P<0.05)] and poor prognosis in glioma patients. Notably, the univariate survival analysis identified a negative correlation between HDGF-expression and survival time (P<0.01) and multivariate liner regression demonstrated that HDGF expression is an independent prognostic factor for gliomas (P=0.01). Overall, HDGF upregulation may be a crucial step in the development and invasion of glioma. Further survival analysis highlighted its prognostic value for this malignancy, implying its potential as a promising therapeutic target for gliomas. PMID- 29344150 TI - Expression of CD24 and B7-H3 in breast cancer and the clinical significance. AB - This study aimed to investigate the correlation between the expression of CD24 and B7-H3 in breast cancer tissues and the clinical significance. Expression of CD24 and B7-H3 in breast cancer and adjacent tissues were detected by immunohistochemistry. Quantitative PCR was used to detect the expression of CD24 and B7-H3 mRNA in breast cancer and adjacent tissues. The expression of CD24 and B7-H3 protein in breast cancer and adjacent tissues was detected by immunoblotting. The correlation between the expression levels of the two proteins was analyzed and the relationship between the expression of two proteins and the 5-year survival of breast cancer patients was investigated. CD24 and B7-H3 were positively expressed in breast cancer and adjacent tissues, the CD24-positive rate was 75.7 and 25.7%, respectively, and the B7-H3-positive rate was 56.8 and 43.2%, respectively, and the differences were statistically significant (P<0.05). The expression of CD24 was positively correlated with the expression of B7-H3 (Spearman's correlation coefficient r, 0.297; p=0.036). The positive and negative expression of CD24 and B7-H3 significantly affected the 5-year survival of breast cancer patients (P<0.05). Quantitative PCR results showed that the expression levels of CD24 and B7-H3 mRNA in breast cancer tissues were significantly higher than those in adjacent tissues (P<0.05). The expression levels of CD24 and B7-H3 protein in breast cancer tissues were also significantly higher than those in adjacent tissues (P<0.05). CD24 and B7-H3 were highly expressed in breast cancer, suggesting that both CD24 and B7-H3 were related to the development of breast cancer. Five-year survival analysis of breast cancer patients showed that the high expression of CD24 and B7-H3 were correlated with the poor prognosis of patients. Thus, CD24 and B7-H3 may become new targets for the treatment of breast cancer. PMID- 29344151 TI - Expression of EZH2 in endometrial carcinoma and its effects on proliferation and invasion of endometrial carcinoma cells. AB - Expression of enhancer of zeste homolog 2 (EZH2) has been implicated in cancer pathology, but research on its mechanistic activity is limited. The present study sought to assess the levels expression of EZH2 in patients with endometrial carcinoma (EC) and to explore the effects of EZH2 downregulation on the biological behavior of endometrial carcinoma RL-952 cells. Samples were obtained from a total of 104 patients with EC and an immunohistochemical assay was used to detect the expression of EZH2 in cancer and adjacent tissues. The relationship between the expression of EZH2 and the clinicopathological features was analyzed. Endometrial carcinoma RL-952 cells were transfected with chemically synthesized siRNA to conduct targeting inhibition of EZH2 expression. The expression levels of EZH2 protein were detected by immunoblotting. MTT and Transwell assays were used to detect the changes of cell proliferation and invasion after EZH2 downregulation. Of the 104 cases of endometrial carcinoma samples, 71 cases showed positive expression of EZH2, with an expression rate of 68.27%. In 104 cases of adjacent tissue samples, 25 cases showed positive expression of EZH2, with an expression rate of 24.03%. The expression of EZH2 in endometrial carcinoma tissue was significantly higher than that in adjacent tissue (P<0.05). The expression of EZH2 in endometrial carcinoma tissue was not correlated with the menopausal status and age of patients (P>0.05), but was correlated with the histological grade, depth of tumor invasion, lymph node metastasis and TNM stage (P<0.05). The expression of E2H2 was significantly downregulated by si-E2H2 and the proliferation and invasion abilities of cells were significantly reduced after EZH2 downregulation (P<0.05). EZH2 is closely related to the development of endometrial carcinoma and can enhance the proliferative activity of endometrial carcinoma RL-952 cells and promote cell invasion. PMID- 29344152 TI - Regulation of autophagy inhibition and inflammatory response in glioma by Wnt signaling pathway. AB - The objective of this study was to investigate the mechanism of the function of Wnt signaling pathway in regulating autophagy and inflammatory response in glioma cells. Human brain glioma cells U118 were selected and divided into three groups: i) the Wnt signaling inhibitor IWR-1 group (the observation group); ii) the PBS negative control group (the PBS group) and iii) the blank control group. After 24 h culture, Wnt5a/beta-catenin protein, autophagy marker, microtubule-associated proteins-1A1B-light-chain-3C (LC-3) II and Beclin I, and inflammatory factors IL 6 and TNF-alpha protein expression levels were evaluated using western blotting. Compared with both control groups, Wnt5a/beta-catenin, IL-6 and TNF-alpha protein expression levels were significantly lower, and LC-3II and Beclin I protein expression levels were significantly higher in the observation group. In conclusion, Wnt5a/beta-catenin signaling pathway regulates autophagy and inflammatory response of glioma cells. PMID- 29344153 TI - Efficacy and prognosis of surgery combined with 125I seed implantation in treatment of recurrent glioma. AB - This study evaluated the efficacy of surgery combined with 125I seed implantation in the treatment of recurrent glioma, and analyzed prognosis-influencing factors. A total of 66 patients with recurrent gliomas in Yidu Central Hospital of Weifang were enrolled in the study from April, 2011 to March, 2014. Patients were randomly divided into a control and an observation group, with 33 patients in each group. Patients in the control group were treated with surgery alone, and those in the observation group received surgery combined with 125I seed implantation. Short-term curative effects in the two groups were compared using evaluation criteria for solid tumors. The comparison included the postoperative adverse reactions, the life quality (using the Karnofsky Performance Status or KPS), the survival time and prognostic factors (using the Kaplan-Meier survival, log-rank test and Cox regression analyses). Our results showed the objective response and disease control rates in the observation group were significantly higher than those in the control group (P<0.05). While no significant differences in postoperative adverse reactions were found between the two groups (P>0.05). The KPS score in the observation group was significantly higher than that in the control group at different time points after surgery (P<0.05). The survival rate and overall survival time of those in the observation group were significantly higher than those of the patients in the control group (P<0.05). The univariate analysis showed that preoperative KPS score, tumor pathological grade and degree of tumor resection were adverse factors influencing the prognosis of the patients (P<0.05). Also, multivariate Cox regression showed that preoperative KPS score, tumor pathological grade, and degree of tumor resection were independent risk factors of prognosis. Based on our findings, surgery combined with 125I seed implantation can improve the survival rate of patients with recurrent glioma and prolong their survival time. Tumor pathological grade, degree of tumor resection and KPS score are the most important factors influencing the prognosis. PMID- 29344154 TI - Study of miR-10b regulatory mechanism for epithelial-mesenchymal transition, invasion and migration in nasopharyngeal carcinoma cells. AB - The aim of the study was to investigate the miR-10b regulatory mechanism for epithelial-mesenchymal transition (EMT) and its effect on the proliferation and migration of nasopharyngeal carcinoma cells. RT-qPCR was used to detect the expression of miR-10b in CNE1 nasopharyngeal carcinoma cell line. The NP69 nasopharyngeal mucosal cell line was used to determine the expression of miR-10b after infection with lentivirus. The effect of miR-10b on the proliferation of NP69 was examined using cell counting kit-8. The effect of miR-10b on NP69 migration was examined using scratch assay. Western blot analysis was used to detect the effects of miR-10b on the expression of epithelial cell markers E cadherin and beta-catenin and mesenchymal cell markers fibronectin, N-cadherin, vimentin and matrix metalloproteinase-9 (MMP-9). The present study showed that miR-10b was highly expressed in CNE1 cells. The stable expression of miR-10b promoted the proliferation and migration of NP69 cells, downregulated the expression of epithelial cell markers E-cadherin and beta-catenin, and upregulated the expression of mesenchymal cell markers fibronectin, N-cadherin, vimentin and MMP-9 resulting in cell EMT. In conclusion, miR-10b promotes the proliferation and migration of nasopharyngeal carcinoma cells, and induces EMT in nasopharyngeal carcinoma cells, thereby having the potential to become a new target for the treatment of nasopharyngeal carcinoma. PMID- 29344155 TI - CD133 mediates the TGF-beta1-induced activation of the PI3K/ERK/P70S6K signaling pathway in gastric cancer cells. AB - Cluster of differentiation (CD)133 has been reported to be involved in the activation of the extracellular signal-regulated kinase (ERK) signaling pathway in different types of cancer cells. CD133 has been reported to be involved in the activation of the ERK signaling pathway in various cancer cells. Transforming growth factor (TGF)-beta1 has also been reported to mediate the activation of the ERK signaling pathway. In addition, TGF-beta1 has been previously shown to mediate the activation of the ERK signaling pathway. Hence, the present study investigated the function of CD133 in the TGF-beta1-induced activation of the ERK/P70S6K signaling pathway in human gastric cancer (GC) cells. To this end, GC cell lines SGC7901 and MKN45 were treated with TGF-beta1. The expression of CD133, phospho-ERK (p-ERK) and phospho-P70S6 kinase (p-P70S6K) was upregulated in the cells treated with TGF-beta1, while the expression of ERK and P70S6K was not altered. To investigate whether CD133 is involved in the TGF-beta1-induced activation of the ERK/P70S6K signaling pathway in GC cells, immunomagnetic cell sorting was employed to isolate CD133+ GC cells, and a CD133-expression construct or CD133-targeting small interfering ribonucleic acids were transfected into cells to modulate the expression of CD133. Subsequently, the expression of CD133, ERK, p-ERK, P70S6K, and p-P70S6K was analyzed by western blotting. The CD133+ cells displayed a high expression of p-ERK and p-P70S6K. Furthermore, SGC7901 GC cells were treated with U0126, an inhibitor of the ERK signaling pathway, to assess whether CD133 is upstream of ERK/P70S6K. The results showed that the expression of p-ERK and p-P70S6K was downregulated in the cells treated with U0126, while the expression of CD133 remained unaltered. The above preliminary results showed that CD133 likely mediates the TGF-beta1-induced activation of the ERK/P70S6K signaling pathway in human GC cells. To further understand the mechanism of regulation of the ERK/P70S6K signaling pathway by CD133, the expression of CD133 was modulated by transfecting cells with CD133-expression constructs or CD133-targeting small interfering ribonucleic acids. Results indicated that overexpression and silencing of CD133 directly increased and decreased the expression of p-ERK and p-P70S6K, respectively. Therefore, we hypothesized that CD133 mediates the TGF-beta1-induced activation of the PI3K/ERK/P70S6K signaling pathway in human GC cells. PMID- 29344156 TI - Effects of syndecan-1 on the expression of syntenin and the migration of U251 glioma cells. AB - Glioma is the most frequently occuring primary brain tumor. Syndecan-1 (SDC1) expression is related to poor prognosis of numerous human malignancies including glioma. Syndecan binding protein (SDCBP) is an important partner for SDC1. The present study investigated whether SDC1 and SDCBP are expressed in glioma and their functions on glioma cell migration. An immunohistochemical assay revealed that SDC1 and SDCBP were expressed and were positively related to malignant level of glioma (SDC1, rs=0.576, P=0.001; SDCBP, rs=0.661, P<0.001). Moreover, the protein levels of SDC1 were positively correlated with those of SDCBP in glioma tissues (rs=0.628, P=0.001). In U251 glioma cells, protein levels of SDC1 and SDCBP were both upregulated in U251 cells with SDC1 overexpression, while downregulated with SDC1 knockdown. Transwell assay and scratch-wound healing assay showed that SDC1 overexpression significantly increased U251 cell migration, while SDC1 knockdown had the opposite effects. Rac1 activity, signal transducer and activator of transcription 3 (STAT3) phosphorylation, as well as expression of matrix metalloproteinase 2 (MMP2) and MMP9 was significantly increased by SDC1 overexpression, while was decreased by SDC1 knockdown. In conclusion, SDC1 overexpression upregulated SDCBP expression, and promoted glioma cell migration via Rac1 activation. PMID- 29344157 TI - Expression and clinical significance of programmed death-1 on lymphocytes and programmed death ligand-1 on monocytes in the peripheral blood of patients with cervical cancer. AB - The programmed death-1 (PD-1) signaling pathway serves a critical role in immune regulation and tolerance by suppressing the activation and proliferation of T cells. The aim of the present study was to investigate the effect of PD-1 and programmed death-ligand 1 (PD-L1) on the development of cervical carcinoma and cervical intraepithelial neoplasia (CIN). A total of 40 healthy controls (HC), 40 patients with CIN and 66 newly diagnosed cervical cancer patients were recruited. The expression level of PD-1 expression on peripheral cluster of differentiation (CD)4+ and CD8+ T cells and PD-L1 on monocytes was analyzed by flow cytometry. The expression level of soluble PD-L1 in serum was determined by an ELISA. The results of the present study demonstrated that the PD-1 expression level on CD4+ and CD8+ T cells was significantly increased in CIN and cervical cancer, compared with that in HC. In addition, the PD-1 expression level on CD4+ and CD8+ T cells was increased in cervical cancer, compared with that in CIN. However, the expression level of PDL-1 on CD14+ monocytes was increased in cancer and CIN, but limited in cancer and CIN. In addition, PD-1 expression on CD4+ T cells was positively associated with PD-1 expression on CD8+ T cells in cervical cancer (P<0.05). Further analyses revealed that the proportion of PD-1 on CD4+ and CD8+ T cells were positively associated with tumor stages. However, no difference in the degree of soluble PD-1 among cancer, CIN and HC cells was revealed. The results suggested that the PD-1 signaling pathway is involved in the development of CIN and cervical cancer. PMID- 29344158 TI - Construction of the POT1 promoter report gene vector, and the effect and underlying mechanism of the POT1 promoter in regulating telomerase and telomere length. AB - By using human genomic DNA as a template to clone protection of telomere 1 (POT1) promoter gene segments and construct the POT1 promoter luciferase report gene vector (pGL3-Control-POT1-promoter), the association between POT1, and the regulation of telomerase and telomere length was investigated. In the present study, two recombinant luciferase report gene vectors were constructed, which included different regions of the POT1 promoter. The plasmids were transformed into DH5alpha and the positive clones were obtained. The two plasmids termed as pGL3-Control-POT1-promoter-1 and pGL3-Control-POT1-promoter-2, were confirmed using restriction enzyme analysis and sequencing. They were separately and transiently transfected into four types of human tumor cells (A549, H460, HepG2 and HeLa). The transcriptional activities of the POT1 promoter were verified using the dual-luciferase assay. The relative expression of POT1 and human telomerase reverse transcriptase (hTERT), and telomere length were analyzed using quantitative polymerase chain reaction in the four types of non-transfected tumor cells. Using SPSS software, correlations between POT1 promoter activity, and POT1 expression, hTERT expression and telomere length were analyzed. Two POT1 promoter fragments (POT1-promoter-1 and -2) were successfully constructed into the pGL3 Control luciferase report gene vector. POT1-promoter-1 exhibited significantly stronger transcription activity compared with POT1-promoter-2. The results of the partial correlation and linear regression analyses were similar: POT1 promoter activity was identified to be significantly and positively correlated with POT1 expression and telomere length (partial correlation coefficients, both P<0.05; linear regression, both P<0.01). However, POT1 promoter activity and hTERT expression were significantly negatively correlated (both P<0.05). The results obtained in the present study suggest that the POT1 promoter influences telomere length. Furthermore, these data indicated that POT1 promoter activity and POT1, as well as telomere length, may be a useful biomarker for tumor detection and future patient prognosis. PMID- 29344159 TI - p38 predicts depression and poor outcome in esophageal cancer. AB - p38 mitogen-activated protein kinase (MAPK) signaling has been implicated in the cancer development and progression. However, the precise mechanism of this association remains unknown. The aim of the present study was to evaluate the association between p38 and cancer progression, including investigations into the effects on cell proliferation, resistance to thalidomide, indoleamine 2,3 dioxygenase (IDO) expression and prognosis in patients with esophageal cancer. The present retrospective study included patients with stage I-III esophageal cancer. A total of 228 patients with esophageal cancer were recruited to analyze the expression of phosphorylated (p)-p38 and IDO in tumor, and normal tissues through immunohistochemistry. Depression status was measured using the Zung Self Rating Depression Scale. P38 cDNA was transfected into esophageal cancer cells to assess tumor cell viability, sensitivity to thalidomide treatment and IDO gene expression. Western blotting and flow cytometry was used to analyze protein expression alterations, and apoptosis in esophageal cancer cells. P-p38 protein was expressed in 68.9% of cancer tissues, and was significantly associated with depressive symptoms, tumor recurrence and poor survival of patients. In vitro experiments revealed that the expression of p-p38 induced esophageal cancer Eca 109 and TE-1 cell viability, and resistance to thalidomide treatment, as well as in the expression of IDO without the application of lipopolysaccharides. Further follow-up of patients revealed that depression was also an independent factor for early recurrence and overall survival rate. Altered p38 MAPK expression was associated with poor outcome in patients with esophageal cancer. p38 may be a potential biomarker for the prediction of depressive symptoms and prognosis in patients with esophageal cancer. PMID- 29344160 TI - The role of computed tomography and magnetic resonance imaging in diagnosing clear cell ameloblastoma: A case report. AB - Ameloblastoma is the most common and clinically relevant type of odontogenic tumor. Clear cell odontogenic carcinoma is histologically characterized by solid sheets and nests of clear cells, whereas clear cell ameloblastoma (CCAM) is histologically characterized by an ameloblastomatous component intermixed with an extensive clear cell component. A total of 12 reports have been published on the histological etiology for CCAM; however, no reports have made regarding the detailed computed tomography and/or magnetic resonance imaging features of tumors of this type. The present study describes a case of a well-circumscribed 20-mm radiolucent lesion of the anterior mandible that was misdiagnosed as a clear cell odontogenic carcinoma. The study describes the detailed radiological characteristics of a case of CCAM. PMID- 29344161 TI - UVB radiation represses CYLD expression in melanocytes. AB - CYLD lysine 63 deubiquitinase (CYLD) was originally identified as a tumor suppressor that is mutated in familial cylindromatosis. Unlike in cylindromatosis, downregulation of the deubiquitinase CYLD in melanoma, a highly aggressive tumor, is not caused by mutations in the CYLD gene, but rather by a constitutive and high expression of the snail family transcriptional repressor 1 (SNAIL1). A reduced CYLD level leads to B-cell lymphoma-3/p50/p52-dependent nuclear factor-kappaB activation, which in turn triggers the expression of genes such as cyclin D1 and N-cadherin. Elevated levels of cyclin D1 and N-cadherin promote melanoma proliferation and invasion. By analyzing the regulation of CYLD expression in melanocytes, the present study identified a signaling pathway that is regulated in response to ultraviolet B (UVB) radiation in melanocytes. UVB light leads to an extracellular signal-regulated kinase-mediated induction of SNAIL1 and subsequent downregulation of CYLD expression in normal human epithelial melanocytes. The UVB-mediated suppression of CYLD in melanocytes may have a key role in the reaction to UV stimuli, and may also potentially be involved in the early malignant transformation processes. PMID- 29344162 TI - Effects of rat bone marrow-derived mesenchymal stem cells on breast cancer cells with differing hormone receptor status. AB - Breast cancer is a heterogeneous disease that can be classified into several molecular intrinsic subtypes according to hormone markers, including estrogen receptor, progesterone receptor and human epidermal growth factor receptor-2. Breast cancer cases with different hormone status vary with respect to patient morbidity, metastasis organotropism and disease progression. It is well known that the most preferential relapse site of breast cancer is in the bone, but the metastatic incidence is markedly higher in hormone receptor-positive cancer compared with that in hormone receptor-negative cancers. Bone marrow-derived mesenchymal stem cells (BMSCs) perform important roles at the site of metastasis; however, the effects in different tumors or tumor subtypes are controversial. The present study aimed to explore the various effects of BMSCs on the biological characteristics of different hormone receptor statuses. BMSCs were obtained from female rats and characterized by cell lineage-specific antigens. The MCF-7 and MDA-MB-231 breast cancer cell lines, which are hormone receptor-positive and negative, respectively, were employed in the present study. The cancer cells were co-cultured with BMSCs, and changes in the biological characteristic of cell growth, apoptosis, migration and epithelial-mesenchymal transition (EMT) were assessed. BMSCs exhibited chemotactic attraction to MCF-7, promoted the proliferation of MCF-7 cells and reduced MCF-7 cell apoptosis. By contrast, BMSCs exerted no marked effects on these behaviors of MDA-MB-231 cells. However, following co-culture with BMSCs, the migratory ability was enhanced in the two cell lines. Furthermore, the expression of epithelial markers (epithelial cadherin and occludin) was decreased, and mesenchymal marker vimentin was markedly increased in the two cell lines. Notably, the migratory ability of MDA MB-231 cells was attenuated compared with that of MCF-7 cells. The results from the present study indicated that BMSCs may favor receptor-positive cancer cell proliferation in bone and promote enhanced invasiveness of receptor-negative compared with receptor-positive cancer cells. PMID- 29344163 TI - Clinical characteristics and treatment outcomes of parathyroid carcinoma: A retrospective review of 234 cases. AB - Parathyroid carcinoma (PC) is one of the rarest known types of cancer and has a moderate prognosis, with estimated 5- and 10-year overall survival rates between 78-85% and between 49-70%, respectively. To raise awareness of this disease, and to optimize its diagnosis, clinical management and prognosis, the present study retrospectively reviewed 234 cases of PC. A total of 226 cases of PC, which were archived between 1984 and 2015 in the three major databases of the Chinese population, were retrieved and pooled with the 8 cases diagnosed and treated at the Department of Thyroid Surgery of The First Hospital of Jilin University (Changchun, China) between June 2008 and December 2015. The clinicopathological features, diagnosis, surgical procedures and outcomes of these cases of PC were investigated. The review revealed that misdiagnosis has been a considerable issue, with >80% of the patients misdiagnosed prior to surgery, and the accuracy of intraoperative diagnosis based on frozen sections was only 15.04%. The use of radical resection as first-line therapy significantly improved the disease-free survival by ~8 years (log-rank, 20.956; P<0.001); and, at relapse, reoperation prolonged patient survival by ~7 years (log-rank, 35.322; P<0.001). Consistently, a Cox proportional hazards analysis indicated that radical resection as a first line therapy reduced the risk of postoperative recurrence (P=0.030), and that reoperation following recurrence significantly improved patient survival (P=0.030). The 5- and 10-year cumulative disease-specific survival rates of the cases of PC were 83 and 67%, respectively. Notably, an increased mortality rate was observed among males with PC compared with female patients with PC. In summary, in the past 32 years (1984-2015), the majority of patients with PC have been misdiagnosed. Performing radical resection as the first-line therapy significantly reduces recurrence and improves patient survival time; and, following relapse, subsequent surgery has also been demonstrated to be an effective approach. PMID- 29344164 TI - Mastl overexpression is associated with epithelial to mesenchymal transition and predicts a poor clinical outcome in gastric cancer. AB - Microtubule-associated serine/threonine kinase like (Mastl) is deregulated in a number of types of human malignancy and may be a kinase target for cancer treatment. The aim of the present study was to determine the Mastl expression in gastric cancer and to clarify its clinical and prognostic significance. Immunohistochemistry was performed on a cohort of 126 postoperative gastric cancer samples to detect the expression of Mastl and two epithelial to mesenchymal transition (EMT) markers, epithelial-cadherin and Vimentin. The chi2 test, Kaplan-Meier estimator analysis and Cox's regression model were used to analyze the data. Upregulated Mastl protein expression was observed in the gastric cancer tissues compared with that in the adjacent non-cancerous gastric tissues. Increased Mastl expression was identified in 54/126 (42.9%) gastric cancer samples, and was significantly associated with lymph node metastasis, tumor relapse, EMT status and poor overall survival. Additional analysis demonstrated that the Mastl expression level stratified the patient outcome in stage III, but not stage II tumor subgroups. Cox's regression analysis revealed that increased Mastl expression was an independent prognostic factor for patients with gastric cancer. Mastl expression may be a valuable prognostic marker and a potential target for patients with gastric cancer. PMID- 29344165 TI - Overexpression of forkhead box M1 and urokinase-type plasminogen activator in gastric cancer is associated with cancer progression and poor prognosis. AB - Forkhead box M1 (FOXM1) and urokinase-type plasminogen activator (uPA) are overexpressed and associated with the pathogenesis of multiple types of human malignancy. The aims of the present study were to investigate FOXM1 and uPA expression levels in human gastric cancer using tissue microarray techniques; determining their association with clinicopathological characteristics as well as their prognostic value. Tissue microarray blocks, comprising 436 gastric cancer cases and 92 non-cancerous adjacent normal gastric tissues, were analyzed for FOXM1 and uPA protein expression levels using immunohistochemistry. The results were analyzed statistically in association with various clinicopathological characteristics and overall survival rates. FOXM1 and uPA were detected in 78.67 (343/436) and 83.26% (363/436) of cancer samples, respectively. FOXM1 and uPA were not expressed in the 92 normal gastric tissue samples. In gastric cancer, FOXM1 and uPA levels were associated with tumor size, depth of invasion, tumor node-metastasis (TNM) stage, lymph node metastasis, vessel invasion and distant metastases. The overall survival rate was significantly decreased in patients expressing FOXM1 and uPA compared with FOXM1- and uPA-negative patients. Coxs multivariate analysis revealed that age, depth of invasion and expression levels of FOXM1 and uPA are independent predictors of survival in patients with gastric cancer. These results indicated that increased FOXM1 and uPA expression levels are associated with the invasive and metastatic processes in human gastric cancer, and inversely associated with patient prognosis. Therefore, FOXM1 and uPA may serve as novel prognostic markers independent of, but supplementing, the TNM staging system. PMID- 29344166 TI - Identification and functional analysis of risk-related microRNAs for the prognosis of patients with bladder urothelial carcinoma. AB - The aim of the present study was to investigate risk-related microRNAs (miRs) for bladder urothelial carcinoma (BUC) prognosis. Clinical and microRNA expression data downloaded from the Cancer Genome Atlas were utilized for survival analysis. Risk factor estimation was performed using Cox's proportional regression analysis. A microRNA-regulated target gene network was constructed and presented using Cytoscape. In addition, the Database for Annotation, Visualization and Integrated Discovery was used for Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes pathway enrichment, followed by protein-protein interaction (PPI) network analysis. Finally, the K-clique method was applied to analyze sub pathways. A total of 16 significant microRNAs, including hsa-miR-3622a and hsa miR-29a, were identified (P<0.05). Following Cox's proportional regression analysis, hsa-miR-29a was screened as a prognostic marker of BUC risk (P=0.0449). A regulation network of hsa-miR-29a comprising 417 target genes was constructed. These target genes were primarily enriched in GO terms, including collagen fibril organization, extracellular matrix (ECM) organization and pathways, such as focal adhesion (P<0.05). A PPI network including 197 genes and 510 interactions, was constructed. The top 21 genes in the network module were enriched in GO terms, including collagen fibril organization and pathways, such as ECM receptor interaction (P<0.05). Finally, 4 sub-pathways of cysteine and methionine metabolism, including paths 00270_4, 00270_1, 00270_2 and 00270_5, were obtained (P<0.01) and identified to be enriched through DNA (cytosine-5)-methyltransferase (DNMT)3A, DNMT3B, methionine adenosyltransferase 2alpha (MAT2A) and spermine synthase (SMS). The identified microRNAs, particularly hsa-miR-29a and its 4 associated target genes DNMT3A, DNMT3B, MAT2A and SMS, may participate in the prognostic risk mechanism of BUC. PMID- 29344167 TI - Analysis of IMP3 expression in primary tumor and stromal cells in patients with colorectal cancer. AB - Insulin-like growth factor II mRNA-binding protein 3 (IMP3) is an oncofetal protein upregulated in tumor cells during carcinogenesis. The aim of the present study was to investigate the expression status of IMP3 in colorectal cancer (CRC) tissues and its clinical significance. Immunostaining was performed in 130 CRC samples, the association of IMP3 expression with clinicopathological characteristics was assessed and 58 patients were selected for survival analysis. To the best of our knowledge, the present study describes for the first time the expression of IMP3 in tumor stromal components of CRC. Stromal expression of IMP3 was detected in 24/130 (18.5%) CRC tissue specimens and was associated with tumor node-metastasis (TNM) stage (stage III-IV, P=0.003), lymph node metastasis (P=0.006), lympho-vascular invasion (P=0.003), tumor border (P=0.013). Tumoral expression of IMP3 was detected in 94/130 (72.3%) of CRC specimens and was associated with T classification (T3-T4, P=0.027), tumor-node-metastasis (TNM) stage (stage III-IV, P=0.011), lymph node metastasis (P=0.048), tumor budding (>10 buds, P=0.005). Further study indicated that patients with IMP3 expressed in tumor cells and tumor stroma tend to have poorer overall survival rates (P=0.02 and P=0.06, respectively). Moreover, tumoral expression of IMP3 and TNM stage were identified to be independent prognostic factors in CRC. IMP3 was not only expressed in tumor cells but also in stroma cells. Stromal expression of IMP3 was associated with lymph node metastasis and advanced tumor TNM stage. Moreover, the survival analysis indicated that there is a significant association between IMP3 expression in tumor cells and a poorer overall survival rate in patients with CRC. The expression of IMP3 maybe a predicted factor for CRC patient. PMID- 29344168 TI - MiR-124 inhibits invasion and induces apoptosis of ovarian cancer cells by targeting programmed cell death 6. AB - Epithelial ovarian cancer remains the most common type of malignant tumor of the female reproductive system worldwide. Routine surgery and chemotherapy are the best treatments available for patients with ovarian cancer; however, almost 40% of ovarian cancer cases are intractable, with poor 5-year survival rates. MicroRNAs (miRNA) are endogenous small non-coding RNA molecules that function in transcriptional and post-transcriptional regulation of gene expression in various cellular processes. Recent studies demonstrated that microRNA (miR)-124 was downregulated in numerous types of tumors; however, the function and mechanism underlying miR-124 in epithelial ovarian cancer remain unclear. The present study revealed that miR-124 may be significantly downregulated in epithelial ovarian cancer. Using prediction algorithms and luciferase reporter gene assays, the present study identified and confirmed programmed cell death 6 (PDCD6) as a novel, direct target of miR-124. Overexpression of miR-124 suppressed PDCD6 expression, inhibited cell proliferation, migration and invasion, and induced apoptosis in SKOV3 and OCVAR3 cells in vitro. In the present study, overexpression of PDCD6 in epithelial ovarian cancer cells co-transfected with miR-124 effectively reversed the miR-124-induced apoptosis. Therefore, the results of the present study suggested that miR-124 is a tumor suppressor miRNA and a potential target for future treatment of ovarian malignant neoplasms. PMID- 29344169 TI - Bortezomib overcomes the negative prognostic impact of renal impairment in a newly diagnosed elderly patient with multiple myeloma: A case report. AB - Multiple myeloma (MM) is a common B-cell hematological malignancy in the clinic. Bortezomib is the first-in-class proteasome inhibitor that has been approved for the treatment of patients with MM in the bone marrow. The present study report the case of an 83-year-old man who showed marked weakness, fatigue and a poor appetite. The patient was admitted to the Department of Nephrology due to severe renal impairment (RI). Immunofixation electrophoresis indicated a lambda light chain-positive status. There were 19.2% plasmablasts and proplasmacytes in the bone marrow. Positivity for the cell surface markers cluster of differentiation (CD)13, CD33, CD38 and human leukocyte antigen-antigen D-related was detected by flow cytometry. The patient was diagnosed with MM, lambda light chain type, stage IIIB, and received bortezomib and dexamethasone regimen chemotherapy. RI was improved following the chemotherapy, and plasmablasts and proplasmacytes were almost eliminated. The Hb level was maintained at ~90 g/l. Overall, the present case report suggests that bortezomib may be safe and effective for elderly patients, even those >80 years of age, with severe RI. PMID- 29344170 TI - Phosphorylation of Ser6 in hnRNPA1 by S6K2 regulates glucose metabolism and cell growth in colorectal cancer. AB - Abnormal glucose metabolism is critical in colorectal cancer (CRC) development. Expression of the pyruvate kinase (PK) M2 isoform, rather than the PKM1 isoform, serves important functions in reprogramming the glucose metabolism of cancer cells. Preferential expression of PKM2 is primarily driven by alternative splicing, which is coordinated by a group of splicing factors including heterogeneous nuclear ribonucleoprotein (hnRNP)A1, hnRNPA2 and RNA binding motif containing. However, the underlying molecular mechanisms associated with cancer cell expression of PKM2, instead of PKM1, remain unknown. The mRNA levels of PKM isoform and glucose metabolism were analyzed in CRC cells. The results of the present study indicated that S6 kinase 2 (S6K2) promotes glycolysis and growth of CRC cells by regulating alternative splicing of the PKM gene. In addition, chromatin immunoprecipitation assay indicated that S6K2 phosphorylation of Ser6 of hnRNPA1 facilitated hnRNPA1 binding to the splicing site of the PKM gene. As a result, cancer cells preferentially expressed the PKM2 isoform, instead of the PKM1 isoform. Furthermore, Cox regression analysis demonstrated that the phosphorylation of Ser6 of hnRNPA1 was a predictor of poor prognosis for patients with CRC. Therefore, the results of the present study revealed that the phosphorylation of Ser6 in hnRNPA1 by S6K2 was a novel mechanism underlying glucose metabolic reprogramming, and suggested that S6K2 is a potential therapeutic target for CRC treatment. PMID- 29344171 TI - DEPDC7 inhibits cell proliferation, migration and invasion in hepatoma cells. AB - DEP Domain Containing 7 (DEPDC7) is highly and specifically expressed in normal liver tissue, belonging to the class of genes of liver-selective cell communication. Although the function of DEPDC7 remains poorly understood, its expression is decreased in liver cancer compared with normal liver tissues. It has previously been demonstrated that knockdown of DEPDC7 promotes cell growth, S phase entry and cell mobility and invasion in HepG2 cells. In the present study, it was shown that DEPDC7 expression is downregulated in four hepatoma cell lines (SMMC-7721, Huh-7, SK-Hep-1 and HepG2) and 48 hepatoma tissues, determined using western blot and immunohistochemical analysis. When DEPDC7 is overexpressed in hepatoma cell lines (SK-Hep-1 and Huh-7), it inhibits cell proliferation and cell growth; inhibits cell cycle entry; and inhibits cell motility and invasion. These results, together with the results of knockdown experiments, demonstrate that DEPDC7 may have an important role in hepatoma cells growth and metastasis and suggest it could be a therapeutic target; however, in vitro studies are required to validate this hypothesis. PMID- 29344172 TI - Potential factors influencing the development of oral tongue squamous cell carcinoma in young mature patients: Lingual position of the mandibular second molar and narrow tongue space. AB - The lingual position of the mandibular second molar and narrow tongue space are associated with oral tongue squamous cell carcinoma (OTSCC) development in young mature patients. The present study aimed to assess the role of the mandibular second molar position and tongue space in young mature patients with OTSCC. The medical records of 21 patients with OTSCC aged <50 years, who had an intact mandibular second molar and had undergone computed tomography (CT) imaging between April 2009 and December 2015 at the Section of Maxillofacial Surgery in Tokyo Medical and Dental University, were retrospectively examined. As controls, 21 sex-matched patients of a similar age to the patients in the OTSCC group, and with a height and weight within 5% of those of the OTSCC group, were collected. The location of the mandibular second molar on the affected side and area of the tongue space were determined using coronal and axial CT images. Mann-Whitney U test analysis revealed that the location of the mandibular second molar and the area of the tongue space differed significantly between young mature patients with OTSCC and the controls. The present study thus revealed that the lingual position of the mandibular second molar and the narrow tongue space may be potential factors influencing OTSCC development in young maturity. PMID- 29344173 TI - RASAL1 inhibits HepG2 cell growth via HIF-2alpha mediated gluconeogenesis. AB - RAS protein activator like 1 (RASAL1) is a member of the RAS GTPase-activating protein (GAP) family, and has been identified as a tumor suppressor in various types of cancer. In the present study, it was determined that decreased levels of RASAL1 were accompanied by a higher pathological stage and larger tumor size in human liver cancer. Therefore, it was hypothesized that RASAL1 may serve an inhibitory role in liver cancer. In the present study, the following was demonstrated: i) Exogenous expression of RASAL1 may inhibit the proliferation and invasion ability of HepG2 cells; ii) overexpression of RASAL1 may downregulate HIF-2alpha transcription activity and HIF-2alpha-mediated gluconeogenesis through extracellular signal-related kinase 1/2 activation; iii) RASAL1 may reduce the xenograft tumor size in nude mice by inhibiting the expression of hypoxia inducible factor (HIF)-2alpha and gluconeogenesis enzymes. These data suggest that the RASAL1/HIF-2alpha axis may serve an essential role in the growth of HepG2 cells, and that this signaling cascade may be a novel therapeutic target for the treatment of liver cancer. PMID- 29344174 TI - Expression profile of cytokines in gastric cancer patients using proteomic antibody microarray. AB - Gastric cancer (GC) is often a deadly disease due to the late diagnosis and chemoresistance that characterizes many cases of this disease. The aim of this study was to explore a panel of candidate cytokines as diagnostic and predictive biomarkers for GC. Sixteen tissue samples of GC and adjacent noncancerous mucosa were selected from GC patients (n=8) for antibody microarray analysis. Proteomic chip-based analysis was performed to simultaneously identify 507 cytokines using a cytokine antibody array in the gastric tissues to screen for differential proteins related in cases of GC. Fold changes of protein expression >2.0 or <0.5 were considered significant. The proteins that showed significant differences in levels between the cancerous and non-cancerous samples were analyzed using bioinformatics analysis. One hundred and five cytokines that were significantly different (p<0.05) between GC tissues and normal gastric mucosa were identified. Gene Ontology (GO) enrichment analysis showed that these differentially expressed proteins are involved in many biological and immunological processes, mainly in response to stress, chloroplast thylakoid membrane, vacuole, photosynthesis, aspartic-type endopeptidase activity and flavin adenine dinucleotide binding. Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis indicated that these proteins mainly were involved in the process of cytokine-cytokine receptor interaction, transforming growth factor-beta (TGF-beta) signaling pathway, pathways in cancer, tumor necrosis factor (TNF) signaling pathway, and mitogen activated protein kinase (MAPK) signaling pathway. These findings suggest that the differentially expressed proteins could be associated with GC in patients. Further study of these cytokines may provide a promising approach for diagnosis, classification and prognosis of GC. PMID- 29344175 TI - Effects of andrographolide on postoperative cognitive dysfunction and the association with NF-kappaB/MAPK pathway. AB - The present study investigated the effects of andrographolide on postoperative cognitive dysfunction (POCD) in aged rats to gain insight of the underlying mechanism, which may provide theoretical basis for the clinical application of andrographolide to prevent POCD in older patients. Thirty aged male rats were randomly assigned to 3 groups: Control, model and andrographolide groups. The Morris water maze test was used to examine the spatial memory and learning ability of the rats postoperatively. The histological alterations of neuronal cells in the hippocampus were visualized by H&E staining. The serum levels of neuron-specific enolase (NSE), human soluble protein-100beta (S-100beta) and the inflammation factors of interluekin (IL)-1beta, IL-6 and TNF-alpha involved in the nuclear factor kappaB (NF-kappaB)/mitogen-activated protein kinase (MAPK) signaling pathway were detected by ELISA. The NF-kappaB/MAPK signaling pathway associated proteins in rat serum were detected by western blotting. Following andrographolide treatment, the rats significantly gained learning ability after surgery. Is it ameliorated hippocampal neuronal injury in rats following surgery. Andrographolide decreased NSE, S-100beta, and the inflammation factors, IL-6, IL 1beta and TNF-alpha in serum. Andrographolide reduced NF-kappaB/MAPK pathway associated protein expression. Andrographolide ameliorated POCD in aged rats following surgery. The underlying mechanism may be associated with the downregulation the inflammatory factors and NF-kappaB/MAPK-associated protein expression. PMID- 29344176 TI - Effect of fraxetin on proliferation and apoptosis in breast cancer cells. AB - The aim of the present study was to examine the effect of fraxetin on proliferation and apoptosis in the MCF-7 breast cancer cell line. Cell proliferation was measused using an MTT assay and 4',6-diamidino-2-phenylindole (DAPI) staining was used to determine shrinkage and condensation. RT-PCR was used to examine the expression of factor-associated suicide (Fas) and Fas ligand (FasL) mRNA, and western blot analysis was used to examine Bax and Bcl-2 protein. MTT showed that the proliferation of MCF-7 cells was significantly inhibited by fraxetin in a dose-dependent manner. Fraxetin also induced significant morphological changes of MCF-7 cells, suggestive of apoptosis, whereas DAPI staining showed that fraxetin caused cell shrinkage and chromatin condensation. RT-PCR showed that the expression of Fas and FasL mRNA was upregulated by fraxetin and the western blot analysis revealed that Bax was upregulated and Bcl 2 was downregulated. In conclusion, fraxetin can inhibit the proliferation of MCF 7 cells, induce apoptosis, upregulate Fas, FasL and Bax, and downregulate Bcl-2 to induce apoptosis. These results support the potential therapeutic role for fraxetin in breast cancer. PMID- 29344177 TI - Characteristics of nosocomial infection and its effects on the survival of chemotherapy patients with advanced non-small cell lung cancer. AB - The present study was planned to investigate the characteristics of nosocomial infection and its effects on the survival in advanced non-small cell lung cancer (NSCLC) patients. Retrospective analysis was performed for the 169 chemotherapy patients with NSCLC and nosocomial infection during hospitalization in Binzhou City Central Hospital from March, 2013 to January, 2015. In addition, 170 patients without nosocomial infection were also involved as a control group. The distribution of major drug resistance of Gram-negative (G-) and Gram-positive (G+) were analyzed. The survival conditions of the patients were analyzed according to the nosocomial infection occurrence. The risk factors of nosocomial infection in patients with NSCLC were analyzed by univariate and multivariate logistic analysis. The percentage of G+ infection was 45.6% while G- infection was 54.4%. Nosocomial infections were most common in respiratory system. The median survival time of the observation group was shorter than that of the control group (P<0.05). G- infection was the most common type of infection in nosocomial infection of the patients with NSCLC. The occurrence of infection seriously affected the survival time of patients. Attention is required to the patients older than 60 years undergoing treatment with glucocorticoids as well as immunosuppressive agents. PMID- 29344178 TI - Long non-coding RNA lncTCF7 activates the Wnt/beta-catenin pathway to promote metastasis and invasion in colorectal cancer. AB - Long non-coding RNA (Lnc)TCF7 is a novel lncRNA that is involved in tumorigenesis. Previous studies have revealed that lncTCF7 serves an essential role in maintaining cancer stem cell self-renewal; however, the functions of lncTCF7 in colorectal cancer (CRC) remain unknown. Therefore, the present study aimed to investigate the role of lncTCF7 in CRC. LncTCF7 was upregulated in 52/58 CRC tissues, and its expression correlated with tumor size, lymph metastasis and tumor-node-metastasis stage in CRC. Knocking down lncTCF7 in colon cancer cell lines decreased cell proliferation, migration and invasion, while lncTCF7 overexpression showed opposite changes. In addition, lncTCF7 promoted cell proliferation in vivo. LncTCF7 activated the Wnt/beta-catenin signaling pathway, which is essential for cancer development. Survival analysis revealed that patients with higher expression of lncTCF7 had significantly worse prognosis compared with patients with low expression. These findings indicate that lncTCF7 regulates CRC progression and support the notion of lncTCF7 as a CRC prognostic marker. PMID- 29344179 TI - In vivo antitumor activity evaluation of cancer vaccines prepared by various antigen forms in a murine hepatocellular carcinoma model. AB - Cancer cell vaccines with strong specificity and low tolerance have been revealed to be a promising option for oncology treatment. Various antigen forms, including tumor cell lysate and glutaraldehyde-fixed tumor cells, have been intensively used in cancer vaccine preparation. However, the most effective antigen form has not yet been identified. In the present study, the antitumor efficiency of vaccines prepared by these two antigen forms was systematically investigated. Murine H22 hepatocellular carcinoma cell lysate and glutaraldehyde-fixed H22 hepatocellular carcinoma cells were conjugated with Freund's adjuvant to prepare vaccines, H22-TCL and Fixed-H22-CELL, respectively. H22-TCL and Fixed-H22-CELL were administrated by subcutaneous immunization in prophylactic and therapeutic strategies. The results of the present study revealed that H22-TCL immunization induced more significant inhibition on tumor growth and metastasis compared with Fixed-H22-CELL injection. Furthermore, histopathological observation demonstrated that H22-TCL vaccine induced larger areas of continuous necrosis within tumors compared to the Fixed-H22-CELL vaccine, which was associated with the extent of tumor inhibition. More importantly, the H22-TCL vaccine injection elicited more evident antigen-specific antibody responses compared with the Fixed-H22-CELL injection. Splenocytes from H22-TCL vaccinated mice also exhibited a more significant T lymphocytes proliferation compared with that from Fixed-H22-CELL treated mice. All the results indicated that whole tumor cell lysate may be a more effective antigen form in cancer vaccine preparation compared with glutaraldehyde-fixed tumor cells, which elicited more marked antigen specific humoral and cellular immune responses resulted with a superior antitumor efficiency. This would have important clinical signification for cancer vaccine preparation and serve a role in prompting this to other researchers. PMID- 29344180 TI - miR-493 inhibits proliferation and invasion in pancreatic cancer cells and inversely regulated hERG1 expression. AB - The human ether-a-go-go-related potassium channel 1 (hERG1) is a component of the voltage-gated Kv11.1 potassium channel, which has been recently indicated to have a crucial role in the tumorigenesis of multiple tumors, including pancreatic carcinoma. Pancreatic carcinoma is one of the most malignant human cancer types, which has an extremely poor prognosis. The present study demonstrated that the expression levels of hERG1 were markedly elevated in pancreatic cancer tissues and pancreatic cancer cell lines, and that the abnormal hERG1 expression was significantly associated with the proliferation and invasion ability of pancreatic cancer. Furthermore, hERG1 was identified to be a direct target of miR 493, which is generally reduced in pancreatic cancer tissues and cell lines. These findings provide a novel insight into the regulatory mechanism of miR 493/hERG1 in pancreatic cancer cell proliferation and invasion, which may aid the development of novel diagnostic and therapeutic strategies for pancreatic cancer in the future. PMID- 29344181 TI - L-type amino acid transporter 1 expression is upregulated and associated with cellular proliferation in colorectal cancer. AB - Previous studies have shown that the L-type amino acid transporter 1 (LAT1) is highly expressed in many types of cancer. Upregulated LAT1 expression is considered to be associated with cancer cell proliferation. In the present study, we investigated LAT1 expression in 210 patients with colorectal cancer (CRC) and 40 patients with colonic adenoma using an immunohistochemical method, and analyzed the associations between LAT1 expression and clinicopathological factors and prognosis. The biological significance of LAT1 was also examined under conditions with sub-normal amounts of essential amino acids using colon cancer cell lines. High expression of LAT1 was observed in 152 of 210 CRC patients (72.4%) and 12 of 40 patients with colonic adenoma (30%), and this difference in the frequency of LAT1 expression between CRC and adenoma was significant (P<0.001). High expression of LAT1 was associated with venous invasion (P=0.027). The restriction of amino acids suppressed cell proliferation in CRC cells with higher LAT1 expression, while cellular proliferation was not suppressed in the cells expressing lower levels of LAT1. Mammalian target of rapamycin (mTOR) expression was also downregulated under restricted availability of amino acids, suggesting that the restriction of amino acids induced an antitumor effect through inhibition of the LAT1/mTOR pathway. In summary, the present study demonstrated that LAT1 expression is frequently upregulated in CRC and is associated with cancer cell proliferation via the mTOR pathway. PMID- 29344182 TI - C-reactive protein/albumin and neutrophil/lymphocyte ratios and their combination predict overall survival in patients with gastric cancer. AB - Multiple studies have reported the prognostic association of certain inflammatory factors with various types of cancer. The present study assessed the prognostic value of the C-reactive protein (CRP)/albumin (Alb) ratio and the neutrophil/lymphocyte ratio (NLR), separately and in combination, in gastric cancer (GC). A total of 337 cases pathologically diagnosed with gastric adenocarcinoma were retrospectively evaluated. The clinicopathological and prognostic relevance of the CRP/Alb ratio and NLR and their combination were analyzed. The optimal cut-off values of the CRP/Alb ratio and NLR were 0.38 and 3.14, respectively. High CRP/Alb ratio (>=0.38) and NLR (>=3.14) values were associated with increased tumor invasion, more distant metastasis and a more advanced tumor-node-metastasis stage (all P<0.05). In addition, a high NLR value was also associated with increased tumor size (P=0.02). The CRP/Alb ratio (>=0.38/<0.38) and NLR (>=3.14/<3.14) were independent prognostic factors for overall survival time (OS) in GC by multivariate analysis (P=0.005 and P=0.001). Using the CRP/Alb ratio and NLR classification, patients were stratified into three subgroups with different OS time (P<0.001), which were identified as independent prognostic variables in multivariate analysis (P<0.001). The present study demonstrated that the CRP/Alb ratio and NLR were independent prognostic factors for OS in patients with GC. The combination of these indexes was associated with significant prognostic value and may further stratify prognosis. PMID- 29344183 TI - A patient with chronic myeloid leukemia and situs inversus totalis: A case report. AB - In the present study, a case of chronic myeloid leukemia (CML) with complete situs inversus in a 68-year-old female patient was reported. The patient presented with general weakness, abdominal distension and tenderness in the right hypochondrium. A chest X-ray revealed a right-sided heart. Ultrasonography revealed situs inversus totalis. A bone marrow smear demonstrated CML in the accelerated phase. Imatinib mesylate was subsequently administered; the patient stopped taking imatinib mesylate following discharge from the hospital. The patient presented with dizziness, fatigue, and abdominal distention and pain 1 year subsequently. A bone marrow smear demonstrated CML in the blast crisis phase; CML had progressed to acute myeloid leukemia (AML) M2a. The patient was treated with imatinib mesylate and cytarabine. After 5 days, the white blood cell count had decreased compared with that measured at the time of admission, and the previous relevant symptoms had disappeared. The patient succumbed to AML 3 months after discharge from the hospital. Situs inversus totalis is an uncommon congenital anomaly that often occurs concomitantly with other disorders. The present study documented, to the best of our knowledge, the second recorded case of CML in a patient with situs inversus totalis. Previous studies on the pathogenesis of situs inversus have suggested it is caused by embryonic cells failing to rotate normally during early embryonic development. Although there are case reports of situs inversus totalis in patients with cancer, there are few reports on the association between situs inversus totalis and cancer. The present study examined a case of CML with situs inversus totalis and assessed whether the latter may be associated with cancer. PMID- 29344184 TI - Therapeutic effects of adenovirus-mediated CD and NIS expression combined with Na131I/5-FC on human thyroid cancer. AB - Thyroid cancer is the most common type of malignant endocrine tumor diagnosed. Previous studies have indicated that gene therapy is the most promising and effective therapeutic method for thyroid cancer. Therefore, in the present study, Na131I/5-fluorocytosine (5-FC) treatment was combined with cytosine deaminase (CD, encoded by the CDA gene) and sodium iodide symporter (NIS, encoded by the SLC5A5 gene) to act together as a therapeutic tool for thyroid cancer. The present study explored the combined cytotoxic effects of adenovirus-mediated CD and NIS under the control of the progression elevated gene-3 (PEG-3) promoter (Ad PEG-3-CD-NIS) with Na131I/5-FC against the human thyroid cancer TT cell line in vitro. The PEG-3 fragment was obtained by polymerase chain reaction (PCR) using rat genomic DNA as the template, and then Ad-PEG-3-CDA-SLC5A5 was constructed using XbaI. TT cells were transfected by recombinant adenovirus. The method of reverse transcription-quantitative PCR was performed to test the expression of CD and NIS at the level of transcription. The morphological change was assessed by fluorescence microscopy and investigated by western blot analysis. An MTT assay was used to determine the number of living cells inhibited by single or combination therapies on TT cells. The results indicated that the PEG-3 was successfully cloned, and was also positively regulated in 293 cells. CDA and SLC5A5 genes were highly expressed in TT cells. Na131I combined with 5-FC significantly decreased the human thyroid cancer cells. In conclusion, combination therapy of Ad-PEG3-CDA-SLC5A5 and Na131I/5-FC induces significantly more apoptotic characteristics than either single treatment with Ad-PEG-3-CDA SLC5A5 or Na131I/5-FC, and low doses of Ad-PEG-3-CDA-SLC5A5 enhanced the cytotoxic effects. PMID- 29344185 TI - Downregulation of miR-30a is associated with proliferation and invasion via targeting MEF2D in cervical cancer. AB - Accumulating studies have revealed that microRNAs serve crucial roles in cancer development and progression. MicroRNA-30a (miR-30a) has been implicated in various cancer types. However, the role of miR-30a in cervical cancer remains unclear. In the current study, a reverse transcription-quantitative polymerase chain reaction (RT-qPCR) assay revealed that miR-30a was significantly downregulated in cervical cancer tissues compared with adjacent normal tissues, and in the cervical cancer cell lines HeLa, SiHa and Ca-Ski compared with GH329 normal cervical epithelial cells. A functional assay using miR-30a mimic demonstrated that miR-30a could inhibit the growth and invasion of cervical cancer cells. Additionally, bioinformatics-based prediction and luciferase reporter assays indicated that MEF2D is a direct target of miR-30a. Transfection with miR-30a reduced the mRNA expression and protein levels of MEF2D, as determined using RT-qPCR and western blot analyses. Furthermore, MEF2D expression was negatively correlated with that of miR-30a in cervical cancers. Overall, the present study demonstrated that miR-30a functions as a tumor suppressor by targeting MEF2D in cervical cancer, which may provide the basis for a prognostic biomarker or therapeutic strategy for cervical cancer. PMID- 29344186 TI - Downregulation of klotho beta is associated with invasive ductal carcinoma progression. AB - Klotho beta (KLB) is a single-pass transmembrane protein measuring 1,043 amino acids in length that shares 41.2% homology with klotho alpha (KLA). KLB is a co receptor and key regulator of the fibroblast growth factor receptor 4 (FGFR4) pathway. KLB interacts with FGFR4 to induce apoptosis and inhibit the proliferation of hepatoma cells, and KLA has been demonstrated to be a tumor suppressor in human breast cancer; however, little is known regarding the role of KLB in breast cancer. In the present study, through an immunohistochemical analysis of invasive ductal carcinoma tissue arrays, low KLB expression was identified in invasive ductal carcinoma samples compared with paired adjacent non tumorous breast tissues (82 cases). In invasive ductal carcinoma tissues, KLB expression was negatively associated with pathological grade and lymph node metastasis. In 42 cases of paired microdissected breast specimens, the condition of the KLB gene allele was examined to determine the loss of heterozygosity (LOH), and selective LOH was identified at the KLB locus in 57.1% of primary tumors. These data suggest that KLB may be associated with the progression and metastasis of invasive ductal carcinoma, and therefore have clinical and therapeutic importance. PMID- 29344187 TI - Patuletin induces apoptosis of human breast cancer SK-BR-3 cell line via inhibiting fatty acid synthase gene expression and activity. AB - Fatty acid synthase (FASN) is a key enzyme involved in fatty acid biosynthesis and serves an important role in breast cancer development. The aim of the present study was to investigate the effects of patuletin on the gene expression and activity of FASN in the human breast cancer SK-BR-3 cell line, and the apoptotic effects of patuletin to breast cancer cells. Quantitative reverse transcription polymerase chain reaction, western blotting and intracellular FASN activity assays were used to evaluate FASN gene expression, protein expression and activity in patuletin-treated SK-BR-3 cells. MTT assays and flow cytometry were used to measure cell growth and cell apoptosis, respectively, following patuletin treatment. As a result, it was demonstrated that patuletin dose-dependently reduces FASN expression and intracellular activity in human breast cancer cells, and induces apoptosis in FASN over-expressing SK-BR-3 cells. Notably, apoptosis is associated with the reduction of intracellular FASN activity. The present study demonstrates that patuletin may be considered as a novel natural inhibitor of FASN, may induce anti-proliferative and pro-apoptotic effects in certain human breast cancer cells and may be useful for preventing and/or treating human breast cancer. PMID- 29344188 TI - High expression of special AT-rich sequence binding protein-1 predicts esophageal squamous cell carcinoma relapse and poor prognosis. AB - Previous studies of the roles of special AT-rich sequence binding protein-1 (SATB1) in the development and progression of cancer have suggested that SATB1 promotes cancer cell metastasis. The aim of the present study is to evaluate the role of SATB1 in the progression and prognosis of esophageal squamous cell carcinoma (ESCC). ESCC tissues were collected from 102 patients and SATB1 mRNA expression was measured by reverse transcription-quantitative polymerase chain reaction. The association between expression of SATB1 mRNA with clinicopathological features and prognosis was assessed, and the prognosis of ESCC was evaluated using Kaplan-Meier survival curves. In the 102 ESCC tissues, SATB1 mRNA expression correlated with the clinical tumor node metastasis stage (P<0.05), but not with any other clinicopathological features (including age, gender, tumor differentiation grade, adjuvant radio/chemotherapy, or the consumption of alcohol and use of cigarettes) (P>0.05). The disease-free survival (DFS) and overall survival (OS) of patients with high SATB1 expression was decreased compared with those with low SATB1 expression. The present study indicated that SATB1 mRNA expression was associated with the postoperative recurrent and poor prognosis in ESCC. SATB1 may be a novel marker for predicting the recurrent and worse prognosis of ESCC. PMID- 29344189 TI - Phosphorylated AKT expression in tumor-adjacent normal tissue is associated with poor prognosis in patients with hepatocellular carcinoma. AB - The AKT pathway serves important roles in tumor cell growth. Its overexpression is associated with poor prognosis in a number of types of cancer; however, the role of AKT in the role of the pathogenesis of hepatocellular carcinoma (HCC) remains unclear. The present study was undertaken to explore the clinical relevance of phosphorylated AKT (p-AKT) in HCC. The level of p-AKT in tumor (TU) and paired adjacent normal liver (AN) tissue from 202 HCC patients was evaluated with immunohistochemistry. The results demonstrated that p-AKT was more highly expressed in TU than in AN tissue. Kaplan-Meier curves and Cox regression revealed that patients with a high expression of p-AKT (AN) exhibited reduced overall and relapse-free survival times; this was not observed at a statistically significant level in p-AKT (TU). Additionally, the high expression of p-AKT (AN) was positively correlated with hepatitis C virus (HCV) infection in HCC patients. These results support the hypothesis that AKT activation is a mechanism of HCV induced hepatocarcinogenesis, suggesting that AKT can be a therapeutic target for the treatment of recurrent HCC subsequent to surgical resection. PMID- 29344190 TI - Anticancer effect of triterpenes from Ganoderma lucidum in human prostate cancer cells. AB - Ganoderma lucidum, within the Polyporaceae family of Basidiomycota, is a popular traditional remedy medicine used in Asia to promote health and longevity. Compounds extracted from G. lucidum have revealed anticancer, antioxidant and liver protective effects. G. lucidum has been associated with prostate cancer cells. G. lucidum extracts contain numerous bioactive components; however, the exact functional monomer is unknown and the role of triterpenes from G. lucidum (GLT) in prostate cancer remain obscure. The present study investigated the effects of GLT on cell viability, migration, invasion and apoptosis in DU-145 human prostate cancer cells. The results demonstrated that a high dose (2 mg/ml) of GLT inhibits cell viability in a dose- and time-dependent manner by the regulation of matrix metalloproteases. Furthermore, GLT induced apoptosis of DU 145 cells. In general, GLT exerts its effect on cancer cells via numerous mechanisms and may have potential therapeutic use for the prevention and treatment of cancer. PMID- 29344191 TI - Expression and prognostic significance of cyclin-dependent kinase inhibitor 1A in patients with resected gastric adenocarcinoma. AB - Cyclin-dependent kinase inhibitor 1A (CDKN1A) is an important cell cycleregulator, and has been identified to exhibit aberrant expression in various types of cancer tissues. However, the association between CDKN1A expression level and prognosis in patients with resected gastric adenocarcinoma (RGA) requires additional elucidation. In the present study, the CDKN1A expression profile in RGA tissues obtained from 217 patients were analyzed using immunohistochemistry. Its prognostic significance was evaluated by using the chi2 test, Kaplan-Meier curves and the log-rank test, and a multivariate Cox model analysis, during a median follow-up time of 51 months. The results demonstrated that CDKN1A expression was significantly correlated with lymph node metastasis (LNM; P=0.001), recurrence (P<0.001) and overall survival (OS; P<0.001). In addition, the recurrence-free survival (RFS) and OS times were significantly shorter in patients with low CDKN1A expression compared with those with high CDKN1A expression (RFS, 20 months vs. 69 months, P<0.001; and OS, 32 months vs. 70 months, P<0.001, respectively). Multivariate analysis additionally confirmed that low CDKN1A expression was significantly correlated with an increased risk of LNM (P=0.001), recurrence (P<0.001) and mortality (P<0.001). Therefore, these data suggest that low expression of CDKN1A has independent prognostic significance indicative of tumor progression and poor survival in patients with RGA. Evaluation of CDKN1A expression may assist in determining prognosis in patients with RGA. PMID- 29344192 TI - TSLP promotes angiogenesis of human umbilical vein endothelial cells by strengthening the crosstalk between cervical cancer cells and eosinophils. AB - Our previous study demonstrated that thymic stromal lymphopoietin (TSLP) secreted by cervical cancer cells promotes angiogenesis and recruitment, and regulates the function of eosinophils (EOS). However, the function of TSLP in the crosstalk between EOS and vascular endothelial cells in cancer lesions remains unknown. The aim of the present study was to investigate the effect of EOS caused by TSLP in in vitro angiogenesis of human umbilical vein endothelial cells (HUVECs). The results of the present study revealed that recombinant human TSLP protein (rhTSLP) increased the secretion of vascular endothelial growth factor (VEGF), but not fibroblast growth factors, in HL-60-eosinophils (HL-60E). Compared with cervical cancer cells (HeLa or CasKi cells) or HL-60E alone, there were increased levels of interleukin (IL)-8 and VEGF in the co-culture system between cervical cancer cells, and HL-60E cells. This effect was strengthened by rhTSLP, but inhibited by inhibiting the TSLP signal with anti-human TSLP or TSLP receptor neutralizing antibodies. The results of the tube formation assays revealed that treatment with the supernatant from cervical cancer cells and/or HL-60E resulted in an increase in angiogenesis in HUVECs, which could be decreased by TSLP or TSLPR inhibitors. The results of the present study suggested that TSLP derived of cervical cancer cells may indirectly stimulate angiogenesis of HUVECs, by upregulating IL-8 and VEGF production, in a co-culture model between cervical cancer cells and EOS, therefore promoting the development of cervical cancer. PMID- 29344193 TI - Identification of differentially expressed molecular functions associated with breast cancer using Gibbs sampling. AB - The aim of the present study was to identify differentially expressed molecular functions (DEMFs) for breast cancer using the Gibbs sampling approach. Molecular functions (MFs) were obtained on the basis of the Bayesian Approach for Geneset Selection package. Subsequently, MFs were converted into Markov chains (MCs) prior to calculating their probabilities, utilizing the MC Monte Carlo algorithm. DEMFs were identified with probabilities >=0.8 and the gene compositions were studied. Finally, a co-expression network was constructed via the empirical Bayes method and a pathway enrichment analysis of genes in DEMFs was performed. A total of 396 MFs were identified and all transformed to MCs. With the threshold, 2 DEMFs (structural molecule activity and protein heterodimerization activity) were obtained. The DEMFs were comprised of 297 genes, 259 of which were mapped to the co-expression network. These 297 genes were identified to be enriched in 10 pathways, and ribosome was the most significant pathway. The results of the present study revealed 2 DEMFs (structural molecule activity and protein heterodimerization activity) which may be associated with the pathological molecular mechanisms underlying breast cancer, based on Gibbs sampling. PMID- 29344194 TI - Chronic myeloid leukemia following repeated diagnostic X-ray exposure for the treatment of recurrent spontaneous pneumothorax in a patient with ankylosing spondylitis: A case report and literature review. AB - Previous studies have indicated that X-ray irradiation may increase the risk of chronic myeloid leukemia (CML), and the incidence of spontaneous pneumothorax in patients with ankylosing spondylitis (AS) is higher than in the general population. Patients with AS usually develop spontaneous pneumothorax several years after the diagnosis of AS. The present study reports the unusual case and complicated clinical history of a 29-year-old man with recurrent pneumothorax and AS, who developed CML following repeated exposure to low doses of radiation via diagnostic X-rays and chest computed tomography imaging. Pneumothorax was diagnosed prior to AS in this patient; the present case report highlights the importance of recognizing AS as a possible underlying cause of recurrent spontaneous pneumothorax. Patients with AS may be more sensitive to injury via X ray-derived radiation, and even small diagnostic doses may be associated with CML. Diagnostic X-ray exposure should therefore be limited to reduce the risk of radiation-associated malignancies, including CML, particularly in patients with AS. PMID- 29344195 TI - Collagen triple helix repeat containing 1 promotes tumor angiogenesis in gastrointestinal stromal tumors. AB - Collagen triple helix repeat containing 1 (Cthrc1) is a secreted protein that has been observed to lead to poorer prognosis by inducing the invasion and metastasis in different tumors; however, it has not been demonstrated that Cthrc1 is involved in tumor angiogenesis. Immunohistochemical staining of Cthrc1 and CD31 in gastrointestinal stromal tumor tissue demonstrated that Cthrc1 is associated with microvascular density. Overexpression of Cthrc1 protein may alter the properties of human umbilical vein endothelial cells (HUVECs), including migration, invasion, tubule formation and aortic ring sprouting. Small interfering RNA-mediated knockdown of Cthrc1 was performed to verify the opposite effects. Migration and tubule formation induced by Cthrc1 overexpression in HUVECs was attenuated by inhibition of phosphorylation in extracellular-signal regulated protein kinase (ERK) and c-Jun N-terminal kinase (JNK) signaling pathways. The pro-angiogenic effect of Cthcr1 is associated with increased phosphorylation of ERK and JNK in HUVECs. Silencing the expression of Cthrc1 protein may be a promising strategy to inhibit tumor angiogenesis. PMID- 29344196 TI - Downregulated expression of TSHR is associated with distant metastasis in thyroid cancer. AB - In differentiated thyroid cancer (DTC), the association between thyroid stimulating hormone receptor (TSHR) and metastasis, and the underlying molecular mechanisms remain unclear. The role of TSHR in the epithelial-mesenchymal transition (EMT) has not yet been reported, to the best of our knowledge. In the present study, the role of TSHR in the distant metastasis of DTC was investigated. TSHR was significantly downregulated in well-differentiated thyroid cancer cells and tissues, and a lack of TSHR promoted thyroid cancer cell invasion and metastasis by inhibiting the EMT of thyroid cancer cells. In addition, the prognostic value of TSHR in thyroid cancer was analyzed. Immunohistochemical analysis of 172 DTC tissues revealed that a lack of expression of TSHR was associated with distant metastasis and a poor survival rate. Multivariate analyses demonstrated that TSHR expression was a significant prognostic factor for distant metastasis and survival time. The results from the present study demonstrated that TSHR inhibits metastasis through regulating EMT in vitro, and that a lack of expression of TSHR is a significant independent factor affecting distant metastasis and poor prognosis in DTC. PMID- 29344197 TI - Overexpression of CXCR4 promotes invasion and migration of non-small cell lung cancer via EGFR and MMP-9. AB - The aim of the present study was to verify whether overexpression of CXC receptor 4 (CXCR4) promotes the invasion and migration of non-small cell lung cancer (NSCLC) via epidermal growth factor receptor (EGFR) and matrix metallopeptidase-9 (MMP-9), and to detect the association between CXCR4, EGFR and MMP-9. The effects of overexpression of CXCR4 on lung cancer cell functions were investigated by migration and invasion assays. Western blotting and zymograph assays were used to analyze the protein expression levels of EGFR and the production of MMP-9, respectively. Immunohistochemistry was applied to analyze the expression of EGFR, CXCR4 and MMP-9 in NSCLC. Statistical analyses were used to detect the associations among EGFR, CXCR4 and MMP-9 in NSCLC. Finally, survival analyses were performed. CXCR4 overexpression enhanced cell motility and invasion. CXCR4 also promoted expression of EGFR and elevated MMP-9 production. CXCR4, EGFR and MMP-9 were highly expressed in NSCLC, and were not identified as associated with age and sex (P>0.05). However, they were associated with tumor differentiation and lymph node metastasis (P<0.05). CXCR4, EGFR and CXCR4 expression were positively associated with one another in NSCLC (P<0.05). In addition, patients with positive expression of CXCR4, EGFR or MMP-9 in tumors exhibited significantly shorter overall survival compared with those with negative expression (P<0.05). In conclusion, CXCR4 overexpression enhanced cell motility and invasion via EGFR and MMP-9. CXCR4, EGFR and MMP-9 were identified as highly expressed in NSCLC, and there was positive correlation among them. PMID- 29344198 TI - Combination of cecropinXJ and LY294002 induces synergistic cytotoxicity, and apoptosis in human gastric cancer cells via inhibition of the PI3K/Akt signaling pathway. AB - The aim of the present study was to investigate the cytotoxic and apoptotic effects of cecropinXJ against human gastric cancer BGC823 cells, either alone, or in combination with a specific phosphatidylinositol 3-kinase (PI3K) inhibitor, LY294002. Cell viability and the apoptosis rate were measured using flow cytometry with Annexin-V staining. Additionally, the expression levels of several RAC-alpha serine/threonine kinase (Akt) phosphorylation-associated proteins and apoptosis-regulating proteins were evaluated by western blot analysis. It was observed that the combination of cecropinXJ and LY294002 resulted in significant synergistic cytotoxic and apoptosis effects, as compared with any single agent alone, in a dose-dependent manner. Corresponding to enhanced apoptosis, the expression levels of certain apoptosis-regulating proteins were changed, the most notable being the upregulation of caspase-3, B-cell lymphoma-2 (Bcl-2)-associated death promotor, Bcl-2 homologous antagonist killer, Bcl-2 interacting killer, Bcl 2-like protein 11, Bcl-2-like protein 4 and cytochrome c, and the downregulation of phosphorylated-Bad and Bcl-2 proteins. The present study provided a novel therapeutic regimen for the use of the cecropinXJ in combination with LY294002 for the treatment of gastric cancer. PMID- 29344199 TI - Expression and prognostic significance of doublecortin-like kinase 1 in patients with hepatocellular carcinoma. AB - Doublecortin-like kinase 1 (DCLK1), a putative cancer stem cell marker in intestinal and pancreatic tumors, is associated with tumor pathogenesis and progression, and poor survival outcomes in numerous types of cancer. However, DCLK1 expression and its prognostic value remain unclear in hepatocellular carcinoma (HCC). In the present study, the expression of DCLK1 was assessed using immunohistochemistry in 96 resected HCC and 68 adjacent tissue specimens. The staining intensity and the percentage of stained cells were scored on a scale of 0-3 and 0-4, respectively. Tissue was defined as positive for DCLK1 if the composite multiple score was >3. Cytoplasmic expression of DCLK1 was observed in HCC and adjacent tissue specimens with an expression rate of 81% (78/96) and 74% (50/68), respectively; the median score was 4.6 and 3.9, respectively, and no statistically significant difference was observed between HCC and adjacent tissues (P=0.087). DCLK1 expression was positively associated with intrahepatic metastasis (P=0.035). Furthermore, univariate analysis revealed that DCLK1 expression was significantly associated with poor disease-free survival (DFS) and overall survival (P=0.024 and 0.034). Multivariate analysis also demonstrated that DCLK1 expression was an independent prognostic factor for DFS in HCC (P=0.019; hazard ratio, 1.546; 95% confidence interval, 1.330-1.725). Stratified Kaplan-Meier survival curves revealed that DCLK1 expression predicted poorer DFS with respect to positivity for three characteristics: Portal venous metastasis, intrahepatic metastasis, and cirrhosis (P=0.020, P=0.007 and P=0.017, respectively). Collectively, the results of the present study suggested that DCLK1, functioning as a tumor promoter, is frequently overexpressed in HCC, and that DCLK1 expression is associated with poor DFS in patients with HCC. DCLK1 may represent a promising therapeutic target in HCC and requires further study. PMID- 29344200 TI - Molecular pathological predictive diagnostics in a patient with non-small cell lung cancer treated with crizotinib therapy: A case report. AB - Lung cancer is one of the most common malignant cancers in the Czech Republic in men, with the highest mortality rate of all the malignant diseases. The development of biological treatment enables study into novel personalized treatment options. This type of treatment is usually of high quality, and is often demanding of predictive and biopsy diagnostics, which is dependent on the quality of the collected material and close cooperation among particular departments. The present study describes the complete biopsy and predictive examinations performed in a male patient with lung adenocarcinoma, with an emphasis on the logistics of the whole process and the application of the tyrosine kinase inhibitors, crizotinib and LDK378. The patient experienced a long overall survival time of 28 months from diagnosis. PMID- 29344201 TI - Elevation of serum CEA and CA15-3 levels during antitumor therapy predicts poor therapeutic response in advanced breast cancer patients. AB - The aim of the present study was to assess the correlation between therapeutic response and carcinoembryonic antigen (CEA) and carbohydrate antigen 15-3 (CA15 3) levels in advanced breast cancer patients with non-assessable lesions or stable disease (SD) according to the Response Evaluation Criteria in Solid Tumors. A total of 232 female patients with recurrent tumors following radical mastectomy were recruited, including 76 patients with non-assessable lesions and 60 patients with SD. The correlation between CEA and CA15-3 changes, progression free survival (PFS) and therapeutic response were analyzed in the non-assessable and SD patient groups. For all subjects, the association between the patients' serum tumor markers levels and the clinical presentation of the tumor, as well as the correlation between initial tumor marker levels and PFS, were analyzed. An increase in CEA (an increment of >2 ng/ml) or CA15-3 levels (an increase of >15 U/ml) following the second cycle of treatment correlated with shorter PFS in both non-assessable and SD patients, and with poor clinical outcome in SD patients. High CA15-3 levels correlated with hormone receptor-positive tumors, multiple metastases and liver metastases. Bone metastases correlated with high levels of both CEA and CA15-3. Relatively low CEA and CA15-3 concentrations were associated with triple-negative and locally invasive tumors. High CEA and CA15-3 levels at the beginning of relapse correlated with shorter PFS. The present study illustrates that CEA and CA15-3 levels correlate with several factors in recurrent breast cancer patients. Elevated levels of CEA and CA15-3 at the beginning of relapse may predict shorter PFS. Furthermore, elevation of CEA and CA15-3 levels following the second therapeutic cycle predict poor therapeutic response in patients with non-assessable lesions and SD. Our findings suggest that alterations in CEA and CA15-3 levels can predict therapeutic response in advanced breast cancer patients. PMID- 29344202 TI - Metformin in combination with cisplatin inhibits cell viability and induces apoptosis of human ovarian cancer cells by inactivating ERK 1/2. AB - Metformin protects against insulin resistance by restoring insulin sensitivity and may also possess anticancer activity. The aim of the present study was to investigate the effects of metformin alone or combined with cisplatin (DDP) on the cell viability and apoptosis of HO-8910 human ovarian cancer cells, and to investigate metformin as a potential novel therapeutic for treating ovarian cancer. The viability of HO-8910 cells was assessed using a cell proliferation and cytotoxicity assay following treatment with different concentrations of metformin (0.01, 0.5, 1, 5 and 10 mM) and/or 5 uM of DDP. Flow cytometry was performed to examine cell apoptosis, and western blotting was used to measure the expression of extracellular signal-related kinase 1/2 (ERK1/2) phosphorylated (p) ERK1/2, vascular endothelial growth factor (VEGF), VEGF receptor 2 (VEGFR2), B cell lymphoma 2 (Bcl-2), Bcl-2-associated X (Bax) and caspase-3. The resultsof the present study revealed that metformin reduced the viability of HO-8910 cells in a time- and concentration-dependent manner and induced cell apoptosis in a concentration-dependent manner. Metformin combined with DDP evidently inhibited cell viability and induced apoptosis. In addition, ERK1/2 and genes associated with apoptosis regulation, such as VEGF, VEGFR2, Bcl-2, Bax and caspase-3, exhibited differential expression in the HO-8910 cells. The present study demonstrated that expression of p-ERK1/2, VEGF, VEGFR2 and Bcl-2 was downregulated by treatment with increasing concentrations of metformin, whereas expression of Bax and caspase-3 was evidently upregulated. Taken together, these data demonstrate that metformin in combination with DDP reduces cell viability and induces apoptosis of human ovarian cancer cells. PMID- 29344203 TI - Mucin 1 promotes radioresistance in hepatocellular carcinoma cells through activation of JAK2/STAT3 signaling. AB - Mucin 1 (MUC1) is aberrantly overexpressed in numerous human cancer types, including hepatocellular carcinoma (HCC) and contributes to chemoresistance of tumor cells. The aim of the present study was to evaluate the possible implication of MUC1 in radioresistance of HCC cells and the underlying mechanisms. It was demonstrated that MUC1 was significantly upregulated in HCC cells following irradiation exposure, which was coupled with increased phosphorylation of signal transducer and activator of transcription 3 (STAT3). Enforced expression of MUC1 significantly (P<0.05) promoted the clonogenic survival of HCC cells following irradiation compared with empty vector transfected cells. MUC1 overexpression resulted in >60% reduction in apoptosis induced by irradiation, as determined by Annexin-V/propidium iodide double staining and flow cytometry analysis. Furthermore, overexpression of MUC1 significantly (P<0.05) attenuated the activation of caspase-3 and poly (ADP ribose) polymerase in response to irradiation exposure. Mechanistically, MUC1 inhibited irradiation-induced apoptosis through activation of janus kinase 2 (JAK2) and STAT3, and induction of anti-apoptotic proteins induced myeloid leukemia cell differentiation protein Mcl-1 (Mcl-1) and BCL2 like 1 (Bcl-xL). Small hairpin RNA-mediated knockdown of STAT3 or MUC1 resensitized MUC1 overexpressing cells to irradiation-induced apoptosis, which was accompanied by reduced expression of Bcl-xL and Mcl-1. Collectively, MUC1 contributes to radioresistance of HCC cells likely through activation of the JAK2/STAT3 signaling pathway and thus represents a potential target for improving radiotherapy against HCC. PMID- 29344204 TI - Silibinin inhibits the migration and invasion of human gastric cancer SGC7901 cells by downregulating MMP-2 and MMP-9 expression via the p38MAPK signaling pathway. AB - The objective of the present study was to observe the effects of silibinin and the p38 mitogen-activated protein kinase (MAPK) signaling pathway inhibitor SB203580 on the migration and invasion capabilities of SGC7901 cells, and to explore the underlying associated mechanisms. Scratch, Transwell and Matrigel invasion assays were performed to study the effects of silibinin on cell migration and invasion. Western blot analysis was used to determine the expression levels of p38MAPK, phosphorylated (p-)p38MAPK, matrix metalloproteinase (MMP)-2 and MMP-9. At the genomic level, quantitative polymerase chain reaction was performed to evaluate the expression levels of MMP 2 and MMP-9. The results of scratch assay indicated that silibinin inhibited the migration capabilities of human gastric cancer SGC7901 cells in a dose-dependent manner. Additionally, Matrigel invasion and Transwell migration assays revealed that silibinin and SB203580 combined treatment significantly reduced the number of invasive cells. Western blot analysis indicated a reduced phosphorylation of p38MAPK without marked changes in p38MAPK expression. In addition, the expression of MMP-2 and MMP-9 significantly decreased in the presence of silibinin, SB203580, and the combination of silibinin and SB203580. In summary, silibinin decreased the invasion and migration abilities of SGC7901 cells by downregulating the expression of MMP-2 and MMP-9 through inhibiting p38MAPK signaling cascades. PMID- 29344205 TI - MicroRNA-138 suppresses cell proliferation and invasion of renal cell carcinoma by directly targeting SOX9. AB - An accumulating number of studies have reported that the expression levels of microRNAs (miRNAs/miRs) are dysregulated in a variety of human cancer types, including renal cell carcinoma (RCC). miRNAs play essential functions in tumorigenesis and the progression of tumors by serving as oncogenes or tumor suppressors. Recently, the expression and functions of miR-138 have been studied in a number of human cancer types; however, its role in RCC remains poorly understood. In the present study, the results revealed that miR-138 was significantly downregulated in RCC cell lines and tissues, and that low expression levels of miR-138 were correlated with histological grade, tumor stage and lymph node metastasis. In functional studies, restoration of miR-138 expression inhibited cell proliferation and invasion of ACHN and A498 cells. In addition, SOX9 was validated as a direct target gene of miR-138 in RCC. SOX9 knockdown inhibited cell proliferation and invasion of RCC, with a similar effect to that induced by miR-138, rendering SOX9 a functional target of miR-138 in the disease. These findings indicate that miR-138 may present a novel target for therapeutic strategies in RCC. PMID- 29344206 TI - Impact of metastatic status on the prognosis of EGFR mutation-positive non-small cell lung cancer patients treated with first-generation EGFR-tyrosine kinase inhibitors. AB - The aim of the present study was to analyze the impact of metastatic status on the prognosis of epithelial growth factor receptor (EGFR) mutation-positive patients with non-small cell lung cancer (NSCLC) treated with first-generation EGFR-tyrosine kinase inhibitors (TKIs). A total of 178 EGFR mutation-positive patients with stage IIIB-IV and relapsed NSCLC who were treated with gefitinib or erlotinib as the first-line treatment were enrolled in the present study. Metastatic status, progression-free survival (PFS), overall survival (OS) and treatment-response rates were investigated. The association between the number of metastatic organ sites and patient prognosis was also investigated. The median age at the time of treatment was 72 (range, 39-91) years. A total of 168 patients had adenocarcinoma; 156 were treated with gefitinib. Patients with brain metastases, bone metastases, liver metastases and pleural effusion exhibited a significantly reduced PFS and OS time in the univariate analysis, compared with patients without each of these symptoms. In the multivariate analysis, bone metastasis was associated with a poorer PFS (hazard ratio, 2.11; 95% confidence interval, 1.44-3.09; P<0.001) and brain metastasis was associated with a poorer OS (hazard ratio, 2.41; 95% confidence interval, 1.46-3.95; P<0.001). No association was observed between metastatic status and treatment response rates. Higher numbers of different sites of organ metastases were associated with significantly poorer PFS and OS. Bone, brain metastasis and higher numbers of metastatic organ sites are negative prognostic factors for EGFR mutation-positive NSCLC patients treated with first-generation EGFR-TKIs. PMID- 29344207 TI - Novel homobarringtonie-containing therapy for the treatment of patients with primary acute myeloid leukemia that are resistant to conventional therapy. AB - The current study investigated the efficacy and safety of a novel treatment regime consisting of homobarringtonie, cytosine arabinoside and etoposide (HCE) for the treatment of primary acute myeloid leukemia (AML). In the present study, 141 patients diagnosed with AML were divided into the HCE (n=47) and the conventional AML therapy, consisting of idamycin combined with cytarabine (IA; n=94), treatment groups. The measured patient outcome parameters were the emission and response rates, as well as medication-induced adverse events, with a median follow-up time of 28 months. There was no significant difference in the 3 year relapse-free survival rate between the HCE and IA treatment groups. The occurrence and severity of hematological or non-hematological toxicity did not differ between the two groups. However, of the 26 patients that demonstrated a poor response to the IA treatment, 19 cases were administered the HCE treatment and 14 of these patients achieved complete remission (CR). Of the 10 patients that demonstrated a poor response to the HCE treatment, 8 patients were administered the IA treatment and 7 of these achieved CR. Therefore, HCE may be an effective treatment regimen for patients with primary AML. As there was no cross-resistance between the HCE and IA regimens, HCE may be an alternative option for patients that respond poorly to IA induction therapy. PMID- 29344208 TI - Serum levels of anti-sperm-associated antigen 9 antibody are elevated in patients with hepatocellular carcinoma. AB - At present, there is a high incidence of viral hepatitis and high mortality rates due to hepatocellular carcinoma (HCC) in China. In the current study, the quantification of antibodies against the cancer-testis antigen sperm-associated antigen 9 (SPAG9), alone and combined with alpha-fetoprotein (AFP), were evaluated as biomarkers for the diagnosis of HCC. The levels of anti-SPAG9 antibody and AFP were quantified in serum samples from patients with HCC and hepatitis or cirrhosis, as well as healthy volunteers. The results revealed that the serum levels of anti-SPAG9 immunoglobulin G antibody in patients with HCC were significantly higher compared with those in patients with hepatitis/cirrhosis and healthy controls. Using receiver operator characteristic curves, the area under the curve (AUC, 0.870) of SPAG9 as a diagnostic marker of HCC was significant [P<0.001; 95% confidence interval (CI), 0.793-0.947], whereas the AUC of AFP was 0.832 (P<0.001; 95% CI, 0.736-0.928). Serum anti-SPAG9 antibody levels exhibited significant potential for the differential diagnosis of HCC, with an AUC value of 0.729, (P=0.008; 95% CI, 0.559-0.899). Similarly, serum AFP levels exhibited significant value for the differential diagnosis of HCC, with an AUC value of 0.842 (P<0.001; 95% CI, 0.732-0.953). When combined with quantification of AFP, the diagnostic sensitivity and specificity of anti-SPAG9 levels were increased. In summary, the results suggested that anti-SPAG9 antibody is a potential early diagnostic marker of HCC. PMID- 29344209 TI - The effect of royal jelly on the growth of breast cancer in mice. AB - Due to various pharmacological properties, including antioxidative, anti inflammatory and antibiotic properties, royal jelly (RJ) has been widely consumed in daily diets in numerous countries. In the present study, the effect of RJ on 4T1-bearing mice was investigated. The study was performed by feeding 4T1-bearing mice with RJ using either the prophylactic-therapeutic (PTRJ) or therapeutic (TRJ) method. The experimental results for the PTRJ group demonstrated that the weight of tumor was significantly reduced (RJ 0.5 and 1.5 g/kg); and in the serum, the levels of interleukin (IL)-2 (RJ 0.5 and 1.5 g/kg), interferon (IFN) alpha, superoxide dismutase (SOD) and total antioxidant capacity (T-AOC) were significantly elevated, but the concentrations of IL-4 (RJ 0.5 and 1.5 g/kg) and IL-10 (RJ 1.0 g/kg) were significantly decreased. In addition, the activities of T-AOC and glutathione reductase (GR) were significantly improved in the liver, whereas in the kidney, the activities of T-AOC and GR were significantly increased only under the dose of 0.5 g/kg. For the TRJ group, the antitumor effect of RJ was not significant; the change in IL-2, IFN-alpha, SOD and T-AOC levels in the serum, and the change in T-AOC and GR in liver were similar to those observed in the PTRJ groups. RJ treatment was demonstrated to reduce the development of breast tumor in mice, and simultaneously improve the antioxidant capacity of the serum, liver and kidney, particularly using the prophylactic therapeutic method. These results corroborated the efficacy of RJ supplementation in diets. The results of the present study suggest that the antioxidant and immunomodulatory activities of RJ serve an important role on antitumor growth. PMID- 29344210 TI - MicroRNA-335 is downregulated in papillary thyroid cancer and suppresses cancer cell growth, migration and invasion by directly targeting ZEB2. AB - MicroRNAs (miRs) are a group of short, endogenous, non-protein-coding and single stranded RNAs that regulate gene expression by binding to the 3'-untranslated region (3'UTR) of mRNAs, which results in their degradation or translational repression. The aim of the present study was to investigate the expression and function of miR-335 in human papillary thyroid cancer (PTC). Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was performed to quantify the relative miR-335 expression levels in PTC tissues and cell lines. The effect of miR-335 on the proliferation, migration and invasion of PTC cells was assessed by an MTT assay, and transwell migration and invasion assays, respectively. Dual-luciferase reporter assays were employed to explore whether miR-335 directly targeted the 3'UTR of the potential target gene zinc finger E box binding homeobox 2 (ZEB2). RT-qPCR and western blotting were adopted to assess the effect of miR-335 on the mRNA and protein expression of ZEB2. RT-qPCR revealed that miR-335 was downregulated in PTC tissues and cell lines. The MTT assay and transwell migration and invasion assays demonstrated that the overexpression of miR-335 significantly inhibited the proliferation, migration and invasion of PTC cells. ZEB2 was identified as a direct target of miR-335 with computational analysis, which was confirmed with a dual-luciferase reporter assay, RT-qPCR and western blotting. The knockdown of ZEB2 significantly inhibited the proliferation, migration and invasion of PTC cells, indicating that ZEB2 may be a functional target of miR-335. Taken together, these findings suggested that miR-335 functioned as a tumor suppressor and suppressed the growth and metastatic behavior of PTC cells by targeting ZEB2. PMID- 29344211 TI - Prevalence of HPV infection among HIV-positive and HIV-negative women in Central/Eastern Italy: Strategies of prevention. AB - The present cross-sectional-study aimed to determine the prevalence of human papillomavirus (HPV)-genotypes among human immunodeficiency virus (HIV)-positive and -negative women in Central/Eastern Italy, and to identify the optimal strategies for effective HPV-prevention in each group. A representative sample of HIV-negative (150/200) and -positive (50/200) women, who underwent cervico vaginal-swabbing. Swabs were analysed for a cytological screening and for a HPV DNA-genotyping-test. A total of 66/200 swabs resulted HPV-positive. The overall HPV-prevalence was 33% with a higher prevalence in the HIV-positive-group (48%) compared with the HIV-negative-group (28%). The most frequent genotypes were: 16, 31, 52, 58, 66, 73 and 89. Furthermore, the prevalence of specific genotypes was different in each group. The results of the present study indicate that HIV infection appears to be an independent risk factor for HPV-infection. In addition, HPV-infection is more common and more likely to persist in HIV-positive compared with in HIV-negative women. The optimal way to counteract HPV infection is through primary prevention. The stage of immunity (cluster of differentiation 4-level) at the time of the HPV-screening is one of the most important parameters for detection of susceptibility to HPV-infection and to evaluate the response to the HPV-vaccine in HIV-positive women. It may be used to determine the sub-group of HIV-positive women that are more prone to HPV-infections or that exhibit a partial response to the HPV-vaccine. At present, a novel type of vaccine with 9 genotypes is available and in the near future, it may serve an essential role in the prevention of HPV infections. PMID- 29344212 TI - Coexistence of sarcoidosis and metastatic lesions: A diagnostic and therapeutic dilemma. AB - Sarcoidosis, a chronic, inflammatory disease that affects various different organs, is characterized by noncaseating epitheloid granulomas. This systemic inflammatory process is associated with an increased risk of cancer. Several cases of sarcoidosis that mimic metastatic tumor progression in radiological findings have been reported so far. However, there are also cases that have presented a coexistence of sarcoidosis and metastasis, which have caused a diagnostic and therapeutic dilemma. Due to inadequate current therapies, a reliable differentiation between benign and malignant lesions is crucial. This review focuses on the residual risk of the coexistence of metastases within radiological suspicious lesions in patients with a history of solid tumors and sarcoidosis, as well as immunological findings, in order to explain the potential associations. Sarcoidosis has the potential to promote metastasis as it includes tumor-promoting and immune-regulating cell subsets. Notably, myeloid derived suppressor cells may serve a pivotal role in metastatic progression in patients with sarcoidosis. In addition, the present review also evaluates the potential novel diagnostic approaches, which may be able to differentiate between metastatic lesions and sarcoidosis. The risk of coexistent metastasis in sarcoidosis lesions must be considered by clinical practitioners, and a multidisciplinary approach may be required to avoid misdiagnosis and the subsequent unnecessary surgery or insufficient treatments. PMID- 29344214 TI - Association of the rs2071559 (T/C) polymorphism with lymphatic metastasis in patients with nasopharyngeal carcinoma. AB - Vascular endothelial growth factor (VEGF) and its receptor, VEGFR2, serve a critical role in angiogenesis and lymphangiogenesis, which are involved in the initiation and progression of malignancies. Specific single nucleotide polymorphisms of VEGF and VEGFR2 have been shown to modulate gene expression and influence malignancy aggressiveness. The aim of the present study was to determine whether the VEGFR2 rs2071559 (T/C) polymorphism is associated with the risk of developing nasopharyngeal carcinoma (NPC) and the aggressiveness of NPC in a southern Chinese population. A case-control study comprising 171 NPC patients and 184 healthy individuals was performed. Genotyping of the rs2071559 polymorphism was performed by quantitative polymerase chain reaction using TaqMan probes. Genotype and allele distribution of the rs2071559 polymorphism was not associated with the risk of NPC following adjustment for age, sex and ethnicity by multivariate logistic regression analyses. Regional lymph node metastasis was significantly correlated with the rs2071559 C allele and the related genotypes (OR 0.402, 95% CI 0.193-0.835, P=0.016; and OR 0.347, 95% CI 0.145-0.829, P=0.024, respectively). No correlations between genotype or allele distribution and the primary tumor size, distant metastasis, clinical stage, or histological type were observed. The rs2071559 polymorphism was shown to have an association with lymphatic metastasis in patients with NPC; however, the precise molecular mechanism should be elucidated in additional studies. PMID- 29344213 TI - Sentinel lymph node mapping in gynecological oncology. AB - The intraoperative mapping of sentinel lymph nodes (SLNs) is part of the treatment strategy for a number of types of tumor. To retrospectively compare results from the mapping of pelvic SLNs for gynecological oncology, using distinct dyes, the present review was conducted to determine the clinical significance of SLN mapping for gynecological oncology. In addition, the present study aimed at identifying an improved choice for SLN mapping tracers in clinical application. Each dye exhibits demerits when applied in the clinical environment. The combination of radioisotopes and blue dyes was identified to exhibit the most accurate detection rate of SLN drainage of gynecological oncology. However, contrast agents were unable to identify whether a SLN is positive or negative for metastasis prior to pathologic examination; additional studies are required. PMID- 29344215 TI - miR-203a suppresses cell proliferation by targeting E2F transcription factor 3 in human gastric cancer. AB - MicroRNAs (miRs) are a class of short non-coding RNAs that serve an essential role in the tumorigenesis of gastric cancer (GC). MiR-203a has been reported as a tumor repressor in various types of human cancer. In the present study, the function of miR-203a on the proliferation of GC cells was investigated. Bioinformatics analyses revealed that miR-203a targets the 3'-untranslated region of E2F transcription factor 3 (E2F3) messenger RNA. A luciferase reporter assay and western blot analysis were performed to confirm whether E2F3 was a target of miR-203a. The relative luciferase activity was decreased when overexpressing miR 203a with E2F3-wild type pmirGLO-3'-untranslated region vector, compared with the control group in HEK293 cells. Overexpression of miR-203a suppressed cell proliferation and colony formation of SGC-7901 and AGS GC cells. Inhibition of miR-203a promoted the proliferation of GC cells. Collectively, the results indicated that miR-203a may function as a tumor suppressor in GC by targeting E2F3. PMID- 29344216 TI - Hypermethylation downregulates P2X7 receptor expression in astrocytoma. AB - The present study investigated the altered expression of p2X purinoceptor (P2X7R) in astrocytoma. Reverse transcription-quantitative polymerase chain reaction and western blot analysis were used to determine the P2X7R expression in glioblastoma (GBM) and surrounding normal brain tissue. DNA methylation levels of P2X7R gene promoter in GBM were analyzed using a Sequenom MassARRAY(r) System. Immunohistochemistry (IHC) was used to detect the expression of P2X7R in astrocytoma at different malignancy grades, including diffuse astrocytoma, anaplastic astrocytoma and GBM. P2X7R mRNA and protein were significantly decreased in GBM compared with normal brain tissues. IHC results showed a negative correlation between P2X7R expression and tumor grade. The decreased P2X7R expression was mostly attributed to hypermethylation of its promoter. Therefore, P2X7R was found to perform an important role in tumorigenesis and progression of astrocytoma. PMID- 29344217 TI - Aleukemic extramedullary T lymphoid/myeloid bilineage hematopoietic and lymphoid malignancy with progression to bilineage leukemia at relapse: A case report. AB - Bilineage T lymphoid and myeloid (T/My) neoplasms are rare entities among the hematopoietic and lymphoid malignancies. The majority of patients present with leukemic symptoms in which blasts are observed in the peripheral blood (PB) or bone marrow (BM) at a percentage of >20% of nucleated cells. Only a minimal number of cases of T/My bilineage hematopoietic and lymphoid malignancy have been reported with extramedullary infiltration as the initial symptom. The origin of the neoplastic cells in T/My bilineage malignancy has been documented as the hematopoietic stem cells. The present study reports the case of a 31-year-old man with a T/My bilineage malignancy, which initially showed cervical lymph node enlargement beyond the diagnostic criteria of leukemia in the PB and in the BM. Two distinct malignant populations were detected in the cervical lymph node and pleural effusion, one of which was positive for MPO-staining, while the other was positive for cytoplasmic cluster of differentiation 3. Mutations in platelet derived growth factor receptor alpha, platelet-derived growth factor receptor beta, fibroblast growth factor receptor 1 and other chromosome abnormalities were excluded. The patient obtained complete remission after conventional chemotherapy, but relapsed with bilineage leukemia within a short period of time. Lymphoid and myeloid lineages have been reported to be differentiated from multipotent progenitors asymmetrically. However, the cellular mutation stage in T/My bilineage malignancy remains unclear. The present study also reviews the origin, development and therapeutic strategies for extramedullary T/My bilineage malignancy. PMID- 29344218 TI - ATRA increases iodine uptake and inhibits the proliferation and invasiveness of human anaplastic thyroid carcinoma SW1736 cells: Involvement of beta-catenin phosphorylation inhibition. AB - All-trans-retinoic acid (ATRA) can enhance iodine uptake capability of thyroid tumors, but the mechanisms remain poorly understood. The aim of the present study was to investigate the effects of ATRA on isotope susceptibility, proliferation and invasion of anaplastic thyroid carcinoma (ATC) and potential mechanisms. SW1736 cells were treated with 1 umol/l ATRA or 1% ethanol for 5 days. A cell line stably expressing beta-catenin-shRNA was established. An iodine uptake assay was performed using 125I. Proliferation and invasiveness were tested using MTT and Transwell assays, respectively. Western blotting was used to assess the expression of beta-catenin, glycogen synthase kinase-3beta (GSK-3beta), sodium/iodine symporter (NIS) and proteins involved in epithelial-mesenchymal transition. Cells pretreated with ATRA were injected subcutaneously into SCID mice. Mice were intraperitoneally injected with 131I once on the first day of treatment, and tumor growth was then assessed. After 35 days of 131I treatment, ATRA-pretreated tumor volume and weight were decreased compared with the 131I alone group (163.32+/-19.57 vs. 332.06+/-21.37 mm3; 0.35+/-0.14 vs. 0.67+/-0.23 g, both P<0.05). Similar results were observed in the beta-catenin shRNA pretreated tumors. ATRA also increased the uptake of iodine by SW1736 cells (P<0.01), and similar results were observed in beta-catenin shRNA cells. ATRA treatment decreased the cell proliferation and invasion compared with control cells (all P<0.05), similar to beta-catenin shRNA. ATRA treatment decreased the expression of phosphorylated (p-)beta-catenin, p-GSK-3beta, vimentin, and fibronectin, and increased the expression of NIS and E-cadherin, compared with the control. ATRA increased the iodine uptake and inhibited the proliferation and invasion of SW1736 cells, involving beta-catenin phosphorylation. In conclusion, ATRA could be used to improve the isotope sensitivity of ATC. PMID- 29344219 TI - Upregulation of miR-146a increases cisplatin sensitivity of the non-small cell lung cancer A549 cell line by targeting JNK-2. AB - The aim of the present study was to investigate the effects of microRNA (miR )146a on the cisplatin sensitivity of the non-small cell lung cancer (NSCLC) A549 cell line and study the underlying molecular mechanism. The differences in expression of miRNAs between A549 and A549/cisplatin (A549/DDP) cells were determined, and miR-146a was selected to study its effect on cisplatin sensitivity of A549/DDP cells. miR-146a mimic and inhibitor transient transfection systems were constructed using vectors, and A549/DDP cells were infected with miR-146a mimic and inhibitor to investigate growth, apoptosis and migration. The directed target of miR-146a was determined and the underlying molecular mechanism was validated in the present study. The results of the present study demonstrated that miR-146a was downregulated in NSCLC A549/DDP cells, compared with A549 cells. The overexpression of miR-146a induced apoptosis and inhibited the growth and invasion of A549/DDP cells, which resulted in increased cisplatin sensitivity in NSCLC cells. The JNK2 gene was determined as the direct target of miR-146a, and may be activated by the overexpression of miR 146a. Additionally, JNK2 activated the expression of p53 and inhibited B cell lymphoma 2. The upregulation of miR-146a increased cisplatin sensitivity of the A549 cell line by targeting JNK2, which may provide a novel method for treating NSCLC cisplatin resistance. PMID- 29344220 TI - Overexpression of microRNA-1470 promotes proliferation and migration, and inhibits senescence of esophageal squamous carcinoma cells. AB - MicroRNA-1470 (miR-1470) is overexpressed in esophageal squamous cell carcinoma (ESCC); however, its role and underlying molecular mechanism remain unknown. The aim of the present study was to explore the tumorigenic role and mechanism of miR 1470 overexpression in ESCC. The expression of miR-1470 in ESCC tissues and cell lines was detected using human miRNA microarrays and the reverse transcription quantitative polymerase chain reaction, respectively. The effects of miR-1470 on cell proliferation, migration and senescence were determined using a Cell Counting Kit-8 assay, Transwell migration assay and beta-galactosidase staining kit. Western blotting was used to analyze the expression levels of genes in the apoptosis signaling pathway. An increased expression level of miR-1470 was observed in ESCC tissues compared with that in paracancerous tissues. Knockdown of miR-1470 significantly suppressed proliferation, and down-regulated the cell cycle regulatory gene cyclin E1. It was also revealed that knockdown of miR-1470 significantly inhibited migration, and decreased the expression levels of matrix metalloproteinase 2 (MMP2), MMP13 and MMP14. Western blotting analysis revealed that knockdown of miR-1470 induced apoptosis by increasing B-cell lymphoma 2 (Bcl 2) expression. The results of the present study suggest that overexpression of miR-1470 in ESCC promotes cancer cell proliferation by accelerating the cell cycle and inhibiting apoptosis, and also enhances cancer cell migration by upregulating MMPs. PMID- 29344221 TI - Livin serves as a prognostic marker for mid-distal rectal cancer and a target of mid-distal rectal cancer treatment. AB - Livin is a novel member of the inhibitor of apoptosis protein family, which has been identified to be expressed in various malignancies and is suggested to be associated with poor prognostic significance. However, no data are available concerning the significance of livin in mid-distal rectal cancer. In the present study, livin expression, and its association with clinicopathological characteristics and prognosis was examined in patients with mid-distal rectal cancer. Apoptotic susceptibility, invasion capacity and chemosensitivity of LoVo cells were investigated using small interfering RNA (siRNA)-mediated knockdown of livin. It was revealed that livin was highly expressed in mid-distal rectal cancer tissues compared with the normal rectal mucosal tissues. Livin expression was associated with pathological grade, extent of invasion (T stage) and extent of lymph node metastasis (N stage) of tumor, contributing to poor prognosis of mid-distal rectal cancer following surgery. The data suggest that aggressive surgery should be applied in patients with mid-distal rectal cancer with high expression of livin. It was also revealed that knockdown of livin by siRNA increased the apoptotic rate, suppressed invasion of LoVo cells, and decreased the half-maximal inhibitory concentration of oxaliplatin and 5-fluorouracil by ~50% in LoVo cells significantly compared with control groups. The data suggested that a combination of downregulation of livin and anticancer drugs may significantly decrease the toxicity of anticancer drugs. Taken together, the present study indicated that livin may be a promising target in clinical therapy of mid-distal rectal cancer. PMID- 29344222 TI - Herbal compound Teng-Long-Bu-Zhong-Tang inhibits metastasis in human RKO colon carcinoma. AB - Metastasis is one of the primary obstacles to the successful treatment of colorectal cancer. Teng-Long-Bu-Zhong-Tang (TLBZT) is a modern Chinese herbal formula that may be useful in the treatment of metastatic colorectal cancer. The present study evaluated the effects of TLBZT on lung metastasis in human RKO colon carcinoma cells injected into mice via the tail vein. The results demonstrated that TLBZT inhibited the metastasis of human RKO colon carcinoma cells to the lungs. TLBZT downregulated the expression of LOX and hypoxia inducible factor 1alpha. TLBZT also inhibited the expression of integrins alphaV and beta3 and the phosphorylation of focal adhesion kinase. These results indicate that TLBZT inhibits the lung metastasis of RKO colon carcinoma by regulating the expression of multiple genes. The results of the present study provide a new basis for the management of colorectal cancer metastasis using treatments derived from Chinese herbs. PMID- 29344223 TI - Application of intensity-modulated radiation therapy in the treatment of nasopharyngeal carcinoma. AB - The objective of the present study was to investigate the application values of the intensity-modulated radiation therapy (IMRT) and the three-dimensional conformal radiation therapy (3D-CRT) in the treatment of nasopharyngeal carcinoma (NPC). A total of 124 patients diagnosed with nasopharyngeal carcinomas were included into the study and randomly divided into the control group and the observation group, with 62 patients in each group. The 3D-CRT combined with postoperative chemotherapy were performed on the control group and the observation group received IMRT combined with postoperative chemotherapy, and then were followed up for a median duration of 25.5 months. Comparison of the survival analysis of the two groups showed no differences between them in terms of the total effective rate and effectiveness (P>0.05), or radiotherapy complications (P>0.05). In addition, no significant differences between the two groups were found in the follow-up local tumor control probability (TCP), regional lymph node control rate, distant metastasis-free rate, tumor-free survival rate, recurrence rate and overall survival rate (P>0.05). Furthermore, there was no difference between the two groups in the overall score of quality of life (P>0.05). The present study concludes that the IMRT and the 3D-CRT have almost the same short-term and long-term clinical effects in the treatment of nasopharyngeal carcinoma and both of them have high effectiveness and safety. PMID- 29344224 TI - Long-term outcomes of microwave endometrial ablation for treatment of patients with menorrhagia: A retrospective cohort study. AB - This study aimed to describe the long-term outcomes of patients with menorrhagia treated with microwave endometrial ablation (frequency, 2.45 GHz), as well as to identify factors associated with recurrence or re-surgery. This retrospective cohort study was conducted from 2007 to 2015 at Shimane University Hospital in Japan. Patients with severe menorrhagia and a desire to preserve their uterus were included in the study. Clinical factors associated with recurrence of menorrhagia or re-surgery were analyzed with a multivariable logistic regression model. Of 160 microwave endometrial ablation candidates, 100 had uterine myomas, 20 adenomyosis, 26 functional excessive menstruation, and 12 endometrial polyps. In the full cohort, age (<40) and uterine cavity length (>=10) were associated with recurrence of menorrhagia and re-surgery. Among patients with myomas, age (<48) and number of myomas (>=4) were associated with recurrence, and largest myoma size (>=5) and preoperative hemoglobin level (<9 mg/dl) were associated with re-surgery. Among subjects with adenomyosis, uterine cavity length (>=10) was associated with recurrence. Microwave endometrial ablation is thought to be a highly efficacious method to control menorrhagia caused by functional bleeding and endometrial polyps. However, microwave endometrial ablation may be less effective for patients younger than 48 years with myomas, especially those with 4 or more myomas, or with a myoma 5 cm or larger in size, and for patients with adenomyosis who have a thickened myometrium. These clinical factors may be useful predictors of success in selecting candidates for microwave endometrial ablation. PMID- 29344225 TI - Metformin enhances the chemosensitivity of hepatocarcinoma cells to cisplatin through AMPK pathway. AB - This study investigated the effect of metformin on chemosensitivity of hepatocarcinoma cells to cisplatin and the possible mechanism. HepG2 and Huh-7 hepatoma cells were treated with cisplatin at concentrations of 0, 2, 4, 6, 8 and 10 uM for 48 h. Proliferation of HepG2 and Huh-7 hepatoma cells were detected by MTT assay. Apoptosis of hepatocellular carcinoma cells was detected by flow cytometry. Western blot analysis was used to detect the expression of 5 monophosphate-activated protein kinase (AMPK) and p-AMPK protein. Proliferative activity of HepG2 and Huh-7 cells decreased with the increase of cisplatin concentration. After adding metformin, proliferation ability of hepatocarcinoma cells was significantly reduced. Apoptosis rate of the metformin was significantly higher than that of the control group, and apoptosis rate of the cisplatin + metformin was significantly higher than that of the cisplatin group. There was no significant difference in expression level of AMPK protein found between control, metformin, cisplatin and cisplatin + metformin group. Compared with the control, ratio of p-AMPK/AMPK in metformin group was increased, and ratio of p-AMPK/AMPK in cisplatin + metformin was significantly higher than that in cisplatin group. Activity of cells in cisplatin + metformin + compound C (AMPK pathway blocker) group was significantly higher than that of cisplatin + metformin, while apoptosis of cells in cisplatin + metformin + compound C (AMPK pathway blocker) was significantly lower than that of cisplatin + metformin group. In conclusion, metformin can inhibit the proliferation, promote apoptosis and enhance the chemosensitivity of hepatocarcinoma cells to cisplatin through AMPK pathway. PMID- 29344226 TI - Analysis of survival and prognosis of 298 gastric adenocarcinoma patients with no distant metastasis. AB - This study investigated the survival and prognosis of 298 gastric adenocarcinoma patients with no distant metastasis. For analysis and comparison of the prognosis of patients, a retrospective analysis was performed in 298 patients with perfect clinical data and follow-up data who received the D2 resections for gastric cancer in Shandong Provincial Hospital Affiliated to Shandong University between January, 2005 and January, 2012, and were diagnosed as gastric adenocarcinoma with no distant metastasis in postoperative pathological examination. Among the gastric adenocarcinoma patients without distant metastasis, we found that differences of sex, age, differentiation and position of tumor had no statistical significance (P>0.05), while comparisons of the tumor diameter, regional lymphatic metastasis, vascular invasion and pathological TNM stages (pTNM; T for tumor, N for lymph node and M for metastasis) showed statistical significance (P<0.05). One-way analysis of variance (ANOVA) indicated the correlation between the prognosis of gastric adenocarcinoma patients and tumor diameter, regional lymphatic metastasis, vascular invasion and pTNM stages of patients (P<0.05). Multivariate analysis of Cox regression models was performed for discovering the factors associated with the prognosis of patients, and the results suggested that position of tumor (P=0.016), regional lymphatic metastasis (P=0.042), vascular invasion (P=0.021) and pTNM stage (P=0.009) were the independent risk factors affecting the prognosis of gastric adenocarcinoma patients. During 60-month follow-up, the median survival duration of gastric adenocarcinoma patients with no distant metastasis was 38 months, while the 5-year accumulate survival rate was 49.3%. The results indicated that in gastric adenocarcinoma patients without distant metastasis, tumor diameter, regional lymphatic metastasis, vascular invasion and pTNM stage are major indicators affecting the prognosis of patients. PMID- 29344227 TI - Sirolimus treatment for cirrhosis or hepatocellular carcinoma patients accompanied by psoriasis after liver transplantation: A single center experience. AB - There is currently no consensus on the most suitable therapeutic approach for psoriasis (PS) co-existing with posthepatic cirrhosis (PCs) and hepatocellular carcinoma (HCC) following liver transplantation (LT). The present study provides an analysis of the therapeutic experience of such patients. Five LT recipients (two with PC and three with HCC) with accompanying PS were included. The induction program consisted of methylprednisolone plus basiliximab treatment. The initial postoperative treatment scheme consisted of tacrolimus (FK506) plus mycophenolate mofetil (MMF) and hormone; the latter was withdrawn 1 week after LT. The patients with PC had been using FK506 with or without a postoperative MMF program; the patients with HCC and recurrence of PS had been switched to a sirolimus (SRL)-based replacement therapy. Furthermore, all patients received anti-hepatitis B virus (HBV) therapy. The patients were followed up after 8.3+/ 1.5 years. There was a positive correlation between HBV-DNA copy numbers, and psoriatic area and severity index (PASI) scores (r=0.97; P=0.006). The PASI scores were decreased significantly at 6 months following surgery compared with pre-transplantation (P<0.05). The patients who had received the FK506-based treatment experienced PS recurrence two years post-transplantation. The PASI scores increased significantly (P<0.05) and then declined gradually, maintaining a stable level (P<0.05) by 1 year after switching to the SRL-based treatment. The patients who had received the SRL-based treatment exhibited no recurrence of PS. The results of the present study suggest that SRL therapy provides a promising novel treatment method for patients with PS following LT that may be superior to tacrolimus treatment. When co-existing HBV is present pre-transplantation, regular injection of human hepatitis B immunoglobulin should be used to prevent the HBV from relapsing or aggravating the PS. PMID- 29344228 TI - Expression and clinical significance of ATM and PUMA gene in patients with colorectal cancer. AB - The expression of ataxia-telangiectasia mutated (ATM) and p53 upregulated modulator of apoptosis (PUMA) genes in patients with colorectal cancer were investigated, to explore the correlation between the expression of ATM and PUMA and tumor development, to evaluate the clinical significance of ATM and PUMA in the treatment of colorectal cancer. Quantitative real-time PCR was used to detect the expression of ATM and PUMA in tumor tissue and adjacent healthy tissue of 67 patients with colorectal cancer and in normal colorectal tissue of 33 patients with colorectal polyps at mRNA level. The expression level of ATM mRNA in colorectal cancer tissues was significantly higher than that in normal mucosa tissues and adjacent non-cancerous tissue (P<=0.05), while no significant differences in expression level of ATM mRNA were found between normal mucosa tissues and adjacent noncancerous tissue (P=0.07). There was a negative correlation between the expression of ATM mRNA and the degree of differentiation of colorectal cancer (r= -0.312, P=0.013), while expression level of ATM mRNA was not significantly correlated with the age, sex, tumor invasion, lymph node metastasis or clinical stage (P>0.05). Expression levels of PUMA mRNA in colorectal cancer tissues, adjacent noncancerous tissue and normal tissues were 0.68+/-0.07, 0.88+/-0.04 and 1.76+/-0.06, respectively. Expression level of PUMA mRNA in colorectal cancer tissues and adjacent noncancerous tissue was significantly lower than that in normal colorectal tissues (P<0.05). The results showed that ATM mRNA is expressed abnormally in colorectal cancer tissues. Expression of PUMA gene in colorectal carcinoma is downregulated, and is negatively correlated with the occurrence of cancer. PMID- 29344229 TI - Preparation and characterization of the Adriamycin-loaded amphiphilic chitosan nanoparticles and their application in the treatment of liver cancer. AB - In the present study, two nanoparticles including lactose myristoyl carboxymethyl chitosan (LMCC) and algal polysaccharide myristoyl carboxymethyl chitosan (AMCC), were obtained for hepatic-targeted Adriamycin (ADM) drug delivery systems. ADM was successfully loaded into the LMCC or AMCC nanoparticle by dialysis. The release function and liver targeting of the nanoparticles was explored, and it was revealed that ADM release from the nanoparticles was greatest at acidic pH 5.5. ADM-conjugated nanoparticles were readily taken up by HU7 human hepatocellular carcinoma cells, relative to HT22 mouse hippocampal neuron cells in vitro. In vivo, ADM-loaded nanoparticles had significant antitumor efficacy with a 62.7% inhibition rate, followed by ADM and ADM-AMCC (51.2 and 42.5%, respectively). The tissue distribution study confirmed that ADM-LMCC had an improved liver delivery efficacy, by comparison with ADM. Furthermore, a series of safety studies, including hemolysis, acute toxicity and organ toxicity, revealed that the ADM-loaded LMCC and AMCC nanoparticles had advantages over the commercially available injectable preparation of Adriamycin hydrochloride, in terms of low toxicity levels and increased tolerated dose. These results indicated that LMCC is a promising carrier for injectable ADM nanoparticle and ADM-conjugated nanoparticles may improve the efficacy of ADM by hepatic targeting. PMID- 29344230 TI - Reduced miR-105-1 levels are associated with poor survival of patients with non small cell lung cancer. AB - Altered expression of microRNAs (miRNAs or miRs) contributes to lung carcinogenesis. The present study performed an in silico analysis of differentially expressed miRNAs in different peripheral blood samples from patients with various diseases vs. controls using the Gene Expression Omnibus (GEO) database data, and assessed miR-105-1 expression in 32 normal lung and 142 non-small cell lung cancer (NSCLC) tissue samples using reverse transcription quantitative polymerase chain reaction. Survival data were calculated using Kaplan-Meier curves and a log-rank test. The stepwise forward Cox regression model was performed for univariate and multivariate analyses of independent predictor of overall survival (OS) of patients. The data on in silico and tissue microarray analyses of miRNA expression revealed reduced miR-105-1 expression in different types of human cancer, particularly in NSCLC. The level of miR-105-1 expression was confirmed to be downregulated in NSCLC tissues compared with that in normal lung tissues. Reduced miR-105-1 expression was associated with larger tumor size as well as poor OS and disease-free survival (DFS) of patients. Multivariate survival analysis demonstrated that reduced miR-105-1 expression and tumor size were independent predictors for OS of NSCLC patients. In conclusion, reduced miR-105-1 expression in NSCLC tissues is associated with poor OS and DFS of NSCLC patients. PMID- 29344231 TI - Expression of Beclin 1 and Bcl-2 in pancreatic neoplasms and its effect on pancreatic ductal adenocarcinoma prognosis. AB - Aberrant expression of Beclin 1 and B-cell lymphoma-2 (Bcl-2) has been identified in a variety of human tumors; however, little information is available for pancreatic neoplasms. The present study analyzed the expression of Beclin 1 and Bcl-2 in pancreatic ductal adenocarcinoma (PDAC) and solid pseudopapillary neoplasm (SPN) of the pancreas, and evaluated their prognostic significance for PDAC. The present study included 117 PDAC, 43 SPN and 32 chronic pancreatitis (CP) cases. Levels of Beclin 1 and Bcl-2 expression were evaluated semiquantitatively by immunohistochemistry, and their correlation with the survival of patients with PDAC was determined. Beclin 1 was upregulated in 74 (63.2%) PDAC, 26 (60.5%) SPN, and 14 (43.8%) CP cases. Bcl-2 was upregulated in 38 (32.5%) PDAC, 11 (25.6%) SPN and 24 (75.0%) CP cases. High Beclin 1 and low Bcl-2 expression was significantly correlated with poor differentiation and distant metastasis in PDAC, and associated with the presence of nuclear pleomorphism in SPN and with advanced Tumor-Node-Metastasis stage in PDAC. Beclin 1 and Bcl-2 levels were inversely correlated in PDAC, whereas they were positively correlated in SPN. Low Beclin 1 and high Bcl-2 expression was associated with improved disease-free survival and overall survival (OS). However, the association of Beclin 1 with survival was not significant in the Cox analysis, whereas Bcl-2 expression was significantly correlated with OS in the multivariate analysis. In conclusion, Beclin 1 upregulation exacerbated the progression and aggressiveness of pancreatic neoplasms, and Bcl-2 downregulated expression was an independently poor prognostic factor for PDAC. PMID- 29344232 TI - Novel combination of paraspinal keyhole surgery with a tubular retractor system leads to significant improvements in lumbar intraspinal extramedullary schwannomas. AB - The aim of the present study was to investigate the efficacy of combining paraspinal keyhole surgery with a tubular retractor system for the microsurgical removal of lumbar intraspinal extramedullary schwannomas. A retrospective analysis was conducted of 56 patients with lumbar intraspinal extramedullary schwannomas who were treated using the microsurgical paraspinal keyhole approach with a tubular retractor system. The mean +/- standard deviation was calculated for the following parameters: Surgery time (96.21+/-14.64 min), hemorrhagic volume (28.54+/-9.72 ml), bed rest (2.55+/-0.5 days) and hospital stay (5.68+/ 0.72 days). Two patients presented with cerebrospinal fluid leakage and one patient exhibited a nerve root injury. At a 6-month follow-up visit, postoperative Japanese Orthopedic Association (JOA) and visual analog scale (VAS) scores were evaluated. The mean +/- standard deviation JOA scores were 12.00+/ 2.07 for preoperative, 14.73+/-2.05 for 1 week postoperative, 20.07+/-2.32 for 3 months postoperative and 21.75+/-2.18 for 6 months postoperative. The improvement rate was 16.07, 47.48 and 59.77%, respectively. The mean +/- standard deviation VAS scores were 6.64+/-1.31 for preoperative, 3.82+/-1.51 for 1 week postoperative, 2.11+/-1.17 for 3 months postoperative and 1.50+/-1.51 for 6 months postoperative. The JOA and VAS scores improved significantly (P<0.05). Magnetic resonance imaging and computed tomography were performed preoperatively, immediately following surgery and at the 6-month postoperative visit to confirm the efficacy of the resections and evaluate spinal stability. No residual tumors were identified at follow-up. No alterations in the stability of the spine were observed postoperatively. The combination of the microsurgical paraspinal keyhole approach with the tubular retractor system was successful in treating lumbar intraspinal extramedullary schwannomas. The surgical approach was associated with decreased hemorrhages, decreased duration of hospital stay, faster recovery and improved postoperative maintenance of spinal stability. PMID- 29344233 TI - Lidamycin decreases CD133 expression in hepatocellular carcinoma via the Notch signaling pathway. AB - Cluster of differentiation (CD)133 is considered a molecular marker of cancer stem cells in hepatocellular carcinoma. In the present study, the effect of lidamycin (LDM) on CD133 expression in hepatocellular carcinoma (Huh7 cells) was evaluated and the potential molecular mechanism was investigated. Flow cytometry analysis, as well as sorting, sphere formation and western-blot assays, were performed in vitro to explore the effects of LDM on CD133 expression. A subcutaneous tumor model in nude mice was used to observe the effects of LDM on tumor volume and CD133 protein in vivo. To investigate the potential underlying molecular mechanism, Notch signaling pathway activity was detected by western blot analysis and reverse transcription-quantitative polymerase chain reaction. The proportion of CD133+ cells and the expression of CD133 protein were revealed to be downregulated by LDM. Sphere formation of sorted CD133+ cells was suppressed 7 days after LDM treatment. In addition, LDM inhibited tumor volume formed from sorted CD133+ cells and CD133 protein level in vivo. LDM decreased the mRNA level of NOTCH1, Hes1 (Hes family BHLH transcription factor 1) and Hey1 (Hes-related family BHLH transcription factor with YRPW motif 1) genes; consequently, the protein expression of NOTCH1, Notch intracellular domain, Hes1 and Hey1 was decreased by LDM. Downregulation of the Notch signaling pathway by LDM was enhanced through combination with N-[N-(3,5-difluorophenacetyl)-L-alanyl] S-phenylglycine t-butyl ester. In brief, these data suggest that LDM suppresses CD133 expression via the Notch signaling pathway, indicating the potential mechanism of LDM on CD133 and the benefits for further clinical application. PMID- 29344234 TI - An oncogenic function of retinoic acid receptor-alpha in the development of laryngeal squamous cell carcinoma. AB - The aberrant expression of retinoic acid receptor-alpha (RARalpha) has been reported in various types of cancer. However, its association with the prognosis and development of laryngeal squamous cell carcinoma (LSCC) has not yet been determined. Therefore, the present study aimed to examine the expression and function of RARalpha in patients with LSCC. The expression of RARalpha in LSCC tissues was investigated using immunostaining. An MTT assay and flow cytometry analysis were also performed to investigate the function of RARalpha in the proliferation and cell cycle of LSCC cells. The expression of RARalpha was significantly elevated in LSCC tissues compared with adjacent noncancerous tissues (78.1 vs. 6.3%, P<0.05). The overexpression of RARalpha was associated with poorly differentiated features of LSCC (P<0.05). Furthermore, the downregulation of RARalpha inhibited the proliferation of LSCC cells, and arrested the cell cycle at the G1 phase via upregulation of cyclin dependent kinase inhibitor 1A, which may be associated with inhibition of the protein kinase B signaling pathway. Therefore, the overexpression of RARalpha may contribute to the development of LSCC through the regulation of the cell cycle. The results of the present study provide evidence that RARalpha serves an important function in LSCC development and may be a potential therapeutic target or prognostic predictor for LSCC. PMID- 29344235 TI - Metronomic chemotherapy remodel cancer-associated fibroblasts to decrease chemoresistance of gastric cancer in nude mice. AB - The present study aimed to evaluate whether capecitabine or 5-fluorouracil (5-Fu) chemotherapy with the metronomic pattern may cause significant chemoresistance compared with the traditional pattern, and whether CAFs are involved in drug resistance. SGC-7901 cells were subcutaneously injected into the nude mice, and the mice were divided into five groups: The control group, intraperitoneally injected with normal saline; the 5-Fu conventional dose group [5-Fu maximum tolerated dose (MTD) group], intraperitoneally injected with 50 mg/kg, twice per week for 2 weeks, with an 1-week discontinuation for 6 weeks; the capecitabine conventional dose group (capecitabine MTD group), intragastric 500 mg/kg, twice per week for 2 weeks, with a 1-week discontinuation for 6 weeks; the 5-Fu metronomic group [5-Fu low-dose metronomic (LDM) group], intraperitoneally injected with 15 mg/kg, twice a week for 6 weeks; and the capecitabine metronomic group (capecitabine LDM group), intragastric administration at 200 mg/kg, twice a week for 6 weeks. The chemotherapy resistance markers [glutathione transferase Pi (GSTP) and multidrug resistance protein 1 (MDR1)] were detected by immunohistochemical staining (IHC), and the association of the expression of these markers with the chemotherapy administration patterns was analyzed. Vascular endothelial growth factor (VEGF) and the cancer-associated fibroblast (CAF) marker alpha-smooth muscle actin were also examined by IHC to illustrate the possible mechanism of chemoresistance. The expression of GSTP and MDR1 in the MTD groups was significantly higher compared with those of the LDM groups (P<0.01). Furthermore, the number of CAFs and the level of VEGF in the MTD groups were significantly higher compared with those of the LDM groups (P<0.05). The low dose metronomic chemotherapy did not increase the risk of chemoresistance compared with the conventional dose traditional chemotherapy in terms of capecitabine or 5-Fu, the increasing amount of CAFs in the microenvironment of cancer cell following therapy may protect cell from capecitabine or 5-Fu via producing VEGF to increase vascularization. PMID- 29344236 TI - Alterations in expression levels of genes in p53-related pathways determined using RNA-Seq analysis in patients with breast cancer following CIK therapy. AB - The present study aimed at investigating the underlying molecular mechanisms for patients following cytokine-induced killer (CIK) therapy, particularly involving the alterations in p53-associated signaling pathways, to elucidate whether CIK therapy serves a function in cancer treatment. Samples of blood were collected from patients with breast cancer prior to and following CIK therapy. Two group samples were used for RNA sequencing (RNA-Seq) to determine the alterations in gene expression levels following CIK therapy and one for the quantitative polymerase chain reaction (qPCR), to analyze the reliability of RNA-Seq results. The genes that may encode proteins associated with p53 pathways were selected and analyzed. The expression levels of 8 genes were analyzed, including tumor suppressor protein 53 (TP53), murine double minute homolog 2 (MDM2), ribosomal protein L11 (RPL11), ribosomal protein S23 (RPS23), sirtuin 1, histone deacetylase 1, tuberous sclerosis complex 1 (TSC1) and mechanistic target of rapamycin (mTOR), and alterations in expression levels following CIK therapy were determined. However, only RPL11 and RPS23 were identified to exhibit marked alterations in expression levels (FDR <0.05), which was considered to be due to individual distinctions. qPCR analysis revealed that the expression levels of the RPL11, TP53 and TSC1 genes were downregulated, and those of the RPS23 and MDM2 genes were upregulated following CIK therapy. Only MDM2 exhibited a marked alteration in the gene expression level following CIK therapy. Alterations in the expression levels of TP53, RPL11 and TSC1 were associated with those of MDM2, RPS23 and mTOR, respectively. PMID- 29344237 TI - Chloroform extract of Hedyotis diffusa Willd inhibits viability of human colorectal cancer cells via suppression of AKT and ERK signaling pathways. AB - Hedyotis diffusa Willd (HDW) is a widely used traditional Chinese medicine in clinical therapy to treat various types of cancer, including colorectal cancer (CRC), but its effective polar fractions and functional mechanisms remain unclear. The aim of the present study was to determine the most effective extract of HDW and to investigate its effects on the regulation of CRC cell proliferation and apoptosis, as well as to investigate the underlying molecular mechanisms. The results demonstrated that the chloroform extract of HDW (CEHDW) exhibited the most anticancer ability. Furthermore, results of the MTT assay, colony formation, carboxyfluorescein diacetate succinimidyl ester assay and annexin V/propidium iodide staining suggested that CEHDW significantly inhibits proliferation and promotes apoptosis in the SW620 CRC cell line. Additionally, reverse transcription-polymerase chain reaction and western blot analysis demonstrated that CEHDW treatment downregulated the expression of Survivin, proliferating cell nuclear antigen, Cyclin D1, cyclin-dependent kinase 4 and B-cell lymphoma 2 (Bcl 2), and upregulated the expression of Bcl-2-associated X protein at the mRNA and protein levels. CEHDW also decreased the phosphorylation of protein kinase B (AKT) and extracellular-signal-regulated kinase (ERK), which indicated that the suppression of the AKT and ERK signaling pathways may be one of the underlying molecular mechanisms by which CEHDW exhibited its anticancer effect. Thus, CEHDW may be a promising agent for anticancer therapy. PMID- 29344238 TI - Sophoridine suppresses cell growth in human medulloblastoma through FoxM1, NF kappaB and AP-1. AB - Sophoridine is an alkaloid extracted from Sophora alopecuroides that has extensive pharmacological actions. In the present study, the effect of sophoridine on cell growth of human medulloblastoma and its mechanism were investigated. Human medulloblastoma D283-Med cells were incubated with 0, 0.5, 1 or 2 mg/ml sophoridine for 24, 48 or 72 h. Cell proliferation and cytotoxicity were analyzed using MTT and lactate dehydrogenase assays, respectively. Next, analyses of cell apoptosis and caspase-3/8 activity were performed using flow cytometry or spectrophotometry, respectively. Lastly, the change in FoxM1, TrkB, BDNF, NF-kappaB and AP-1 expression was investigated using western blot analysis. In the present study, treatment with sophoridine significantly suppressed cell growth and induced apoptosis in human medulloblastoma cells. In addition, sophoridine significantly increased cytotoxicity and caspase-3/8 activity in human medulloblastoma. Finally, it was found that sophoridine suppresses the protein expression of FoxM1, TrkB, BDNF NF-kappaB and AP-1 in human medulloblastoma cells. The present study suggests that sophoridine suppresses cell growth of human medulloblastoma through the inhibition of the FoxM1, NF kappaB and AP-1 signaling pathway. PMID- 29344239 TI - Prognostic impact of preoperative serum interleukin-6 levels in patients with early-stage oral squamous cell carcinoma, defined by sentinel node biopsy. AB - Failure to detect recurrence and lymph node metastasis early represents a fundamental barrier to the improvement of survival rate in early stage oral squamous cell carcinoma (OSCC). The present study evaluated the association between serum interleukin-6 (IL-6) level and clinical outcomes in patients with early stage OSCC patients defined by sentinel node biopsy (SNB). A total of 53 patients with clinical stage I/II OSCC who underwent SNB were enrolled. SNB was determined by a radioisotope method, and was evaluated by histopathological examination and genetic analysis. Preoperative sera were measured for IL-6 by ELISA. In the clinical stage I/II patients, disease-free survival (DFS) was demonstrated to be higher in patients with negative SNB compared with patients with positive SNB. In total, 13 patients were demonstrated to exhibit lymph node metastasis by SNB or were reclassified to pathological stage T4 subsequent to analysis of the surgically resected specimens. Thus, 40 patients were diagnosed with early stage OSCC. Of these 40 patients, DFS of the patients with low serum IL-6 was significantly higher compared with the patients with high serum IL-6 (P=0.012). In 19 patients with negative SNB and low serum IL-6, the disease-free rate was 100%. These findings suggested that SNB staging and serum IL-6 level have a high prognostic value in patients with early stage OSCC. Additional investigation and longer follow-up times are warranted to improve understanding of the group of patients that may benefit from this procedure. PMID- 29344240 TI - CXCL5 as an autocrine or paracrine cytokine is associated with proliferation and migration of hepatoblastoma HepG2 cells. AB - C-X-C motif chemokine ligand 5 (CXCL5) is a CXC-type chemokine that is a crucial inflammatory mediator and a powerful attractant for granulocytic immune cells. Increasing evidence has indicated that CXCL5 is involved in the tumorigenesis of various malignancies. The present investigation demonstrated that CXCL5 was expressed in both hepatoblastoma HepG2 cells and liver stellate LX-2 cells, and CXCL5's receptor C-X-C chemokine receptor type 2 (CXCR2) was expressed in HepG2 cells by reverse transcription-polymerase chain reaction (RT-PCR), western blotting and ELISA assays. Cell counting kit-8, colony formation and Transwell assays revealed that exogenous CXCL5 expression efficiently promoted proliferation, colony formation and migration of HepG2 cells. To explore the autocrine and paracrine roles of CXCL5 in the oncogenic potential of HepG2 cells, HepG2 cells overexpressing CXCL5 and LX-2 cells overexpressing CXCL5 were successfully constructed by gene transfection. Similarly, overexpression of CXCL5 in HepG2 also enhanced proliferation, colony formation and migration of HepG2 cells. Furthermore, the condition medium of LX-2 cells overexpressing CXCL5 affected the proliferation and migration of HepG2 cells. RT-PCR and western blotting assays were also conducted to explore whether overexpression of CXCL5 in HepG2 modulated the expression of genes. The results revealed that overexpression of CXCL5 regulated the expression of several genes, including N-myc downregulated gene 3,w B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein, P53, vascular endothelial growth factor, interleukin (IL)-18, IL-1beta and cystathionine-gamma lyase. In conclusion, the present findings indicate that CXCL5/CXCR2 axis contributes to the oncogenic potential of hepatoblastoma via autocrine or paracrine pathways by regulating expression of genes associated with the progression of carcinoma. PMID- 29344241 TI - Combined pitavastatin and dacarbazine treatment activates apoptosis and autophagy resulting in synergistic cytotoxicity in melanoma cells. AB - Melanoma is an aggressive skin cancer and its incidence is increasing faster than any other type of cancer. Whilst dacarbazine (DTIC) is the standard chemotherapy for metastatic melanoma, it has limited success. Statins, including pitavastatin, have been demonstrated to have a range of anti-cancer effects in a number of human cancer cell lines. The present study therefore explored the anti-cancer activity of combined DTIC and pitavastatin in A375 and WM115 human melanoma cells. Cell survival assays demonstrated that combined DTIC and pitavastatin treatment resulted in synergistic cell death. Cell cycle analyses further revealed that this combined treatment resulted in a G1 cell cycle arrest, as well as a sub-G1 population, indicative of apoptosis. Activation of apoptosis was confirmed by Annexin V-fluorescein isothiocyanate/propidium iodide double staining and an increase in the levels of active caspase 3 and cleaved poly (ADP ribose) polymerase. Furthermore, it was demonstrated that apoptosis occurs through the intrinsic pathway, evident from the release of cytochrome c. Finally, combined DTIC and pitavastatin treatment was demonstrated to also activate autophagy as part of a cell death mechanism. The present study provides novel evidence to suggest that the combined treatment of DTIC and pitavastatin may be effective in the treatment of melanoma. PMID- 29344242 TI - In vivo and in vitro induction of the apoptotic effects of oxysophoridine on colorectal cancer cells via the Bcl-2/Bax/caspase-3 signaling pathway. AB - Oxysophoridine (OSR) is a major active alkaloid extracted from Sophoraalopecuroides L. The aim of the present study was to investigate the induction of the apoptotic effects of OSR on colorectal cancer cells in vivo and in vitro. The results of the MTT and colony formation assays demonstrated that the proliferation of HCT116 cells was inhibited by OSR in vitro. The characteristics of cellular apoptosis in OSR-treated HCT116 cells were analyzed by Hoechst 33258 staining. It was also observed that the expression of caspase-3, B-cell lymphoma-2 (Bcl-2) associated X protein (Bax) and cytochrome c increased significantly upon OSR treatment. However, the expression of Bcl-2 and poly ADP ribose polymerase-1 (PARP-1) was downregulated in OSR-treated cells compared with untreated cells. The in vivo experiments identified that OSR significantly inhibited the growth of the transplanted mouse CT26 tumor tissue, upregulated the expression of caspase-3, Bax and cytochrome c and downregulated the expression of Bcl-2 and PARP-1, as detected by reverse transcription-quantitative polymerase chain reaction and western blotting. It may be concluded that OSR significantly induced apoptotic effects on colorectal cancer cells in vivo and in vitro, and that its mechanism may be associated with the Bcl-2/Bax/caspase-3 signaling pathway. PMID- 29344243 TI - T-cell immunoglobulin and mucin domain-containing protein-3 and galectin-9 protein expression: Potential prognostic significance in esophageal squamous cell carcinoma for Chinese patients. AB - The aim of the present study was to investigate the expression levels of the T cell immunoglobulin and mucin domain-containing protein-3 (TIM-3) and galectin-9 proteins and their clinical value in esophageal squamous cell carcinoma (ESCC) in Chinese patients. The expression profiles of TIM-3 and galectin-9 in ESCC were determined by the immunohistochemical analysis of the postoperative pathological specimens of 45 patients with ESCC; a chi2 test was used to evaluate the association of TIM-3 and galectin-9 expression with clinicopathological parameters, in addition to univariate and multivariate Cox's proportional hazards model to analyze the prognostic value of the expression of TIM-3 and galectin-9 proteins. The proportion of samples exhibiting a high staining intensity for TIM 3 and galectin-9 were 22.22 and 15.56%, respectively: these samples were termed the TIM-3 high-expression group (HEG) and galectin-9-HEG. There was a negative correlation between the expression of TIM-3 and galectin-9 (R=-0.71, P<0.001). The results of Kaplan-Meier survival analysis led to the conclusion that, compared with the TIM-3 low expression group (LEG), patients in the TIM-3-HEG exhibited a poorer overall survival rate (chi2=6.049, P=0.0139). By contrast, patients in the galectin-9-HEG exhibited a significantly better overall survival rate than those in the galectin-9-LEG (chi2=4.915, P=0.0266). However, the levels of TIM-3 and galectin-9 expression were not identified as independent indicators for the prognosis of patients with ESCC. As high TIM-3 and low galectin-9 expression levels were associated with a poor prognosis for patients with ESCC in the present study, these proteins may be potential prognostic indicators for ESCC. PMID- 29344244 TI - Identification and validation of PSAT1 as a potential prognostic factor for predicting clinical outcomes in patients with colorectal carcinoma. AB - The aim of the present study was to explore the existence of known or candidate drug-target genes that are upregulated in colorectal cancer (CRC) and may serve as novel prognostic factors or therapeutic targets for this type of malignancy. An in silico analysis was conducted using the Oncomine tool to compare the expression levels of a list of drug-target genes between cancerous and normal tissues in 6 independent CRC cohorts retrieved from the Oncomine database. Phosphoserine aminotransferase 1 (PSAT1) was identified as the top-ranked upregulated gene in CRC tumors, and was highly expressed in patients with chemoresistant disease. Subsequently, the expression of PSAT1 was further experimentally validated using immunohistochemistry in an independent cohort of CRC specimens. The immunohistochemistry results demonstrated that PSAT1 was overexpressed in the CRC tissues compared with the normal colorectal tissues, which was consistent with the previous in silico analysis. Furthermore, PSAT1 overexpression was associated with response to irinotecan, 5-fluorouracil and leucovorin chemotherapy, and with shorter survival time, and retained significance as an independent prognostic factor for CRC when subjected to the multivariate analysis with a Cox's proportional hazards model. Therefore, the present results implicate PSAT1 as a potential prognostic biomarker and a promising therapeutic target for CRC. Targeted PSAT1 inhibition in the treatment of CRC warrants further investigation. PMID- 29344245 TI - Overexpression of NEDD9 in renal cell carcinoma is associated with tumor migration and invasion. AB - Scaffold protein neural precursor cell expressed, developmentally downregulated 9 (NEDD9) is a member of the Crk-associated substrate protein family and is known to be a biomarker in multiple cancer types. It serves a critical function in regulating cell proliferation, migration, invasion and survival. The objective of this study was to evaluate the potential effects of NEDD9 in renal cell carcinoma (RCC). The expression of NEDD9 was analyzed by immunohistochemistry, western blotting and reverse transcription-quantitative polymerase chain reaction. NEDD9 protein and mRNA levels were significantly upregulated in RCC tissues compared with normal tissues (P<0.001). Furthermore, the NEDD9 immunostaining level was significantly associated with primary tumor stage and tumor, node, metastasis stage (P<0.05). High NEDD9 expression resulted in significantly lower survival rates for patients compared with normal NEDD9 expression (P<0.01). In addition, wound healing and transwell assays indicated that NEDD9 depletion by small interfering RNA significantly attenuated the migration and invasion of RCC cells (P<0.001). The present data suggested that NEDD9 may be a novel target for prevention and treatment of RCC metastasis and recurrence. PMID- 29344246 TI - Silibinin inhibits migration and invasion of the rhabdoid tumor G401 cell line via inactivation of the PI3K/Akt signaling pathway. AB - Rhabdoid tumors, which tend to occur prior to the age of 2 years, are one of the most aggressive malignancies and have a poor prognosis due to the frequency of metastasis. Silibinin, a natural extract, has been approved as a potential tumor suppressor in various studies, however, whether or not it also exerts its antitumor capacity in rhabdoid tumors, particularly with regards to tumor migration and invasion, is unclear. The rhabdoid tumor G401 cell line was used in the present in vitro study. An MTT assay was used to assess the cytotoxicity of silibinin on G401 cells, cell migration was studied using a wound healing assay and a Transwell migration assay, and cell invasion was determined using a Transwell invasion assay. The underlying mechanism in silibinin inhibited cell migration and invasion was investigated by western blot analysis and further confirmed using a specific inhibitor. Experimental results demonstrated that high doses of silibinin suppressed cell viability, and that low doses of silibinin inhibited cell migration and invasion without affecting cell proliferation. The phosphatidylinositol 3-kinase/protein kinase B (PI3K/Akt) signaling pathway was involved in the silibinin-induced inhibition of metastasis. Silibinin inactivated the PI3K/Akt pathway, and inhibited cell migration and invasion, an effect that was further enhanced when LY294002, a classic PI3K inhibitor, was used concurrently. In general, silibinin inhibits migration and invasion of the rhabdoid tumor G401 cell line via inactivation of the PI3K/Akt signaling pathway and may be a potential chemotherapeutic drug to combat rhabdoid tumors in the future. PMID- 29344247 TI - Upregulation of the checkpoint protein CHFR is associated with tumor suppression in pancreatic cancers. AB - The checkpoint with forkhead-associated (FHA) domain and RING-finger (CHFR) protein was identified as a cell cycle checkpoint protein and E3 ubiquitin ligase. In the present study, the potential functions of CHFR in pancreatic cancer were investigated. CHFR expression was measured in five pancreatic cancer cell lines by reverse transcription- quantitative polymerase chain reaction and western blotting. Capan-1 cells stably expressing CHFR were established by lentiviral vector transfection. Cell proliferation was assessed using Cell Counting Kit-8, and cell migration/invasion assay was determined using Transwell assays. Cell cycle and apoptosis induced by gemcitabine or docetaxel were evaluated using flow cytometry. CHFR expression levels were also evaluated in pancreatic ductal adenocarcinoma (PDAC) tumor samples as well as adjacent non tumor tissues by immunohistochemistry. The significance of CHFR expression was determined, with respect to clinicopathological features and overall survival. Overexpression of CHFR in Capan-1 cells led to a decreased proliferative rate and reduced cell migration and invasion abilities. Results also indicated an increase in G1 phase cells in Capan-1 cells overexpressing CHFR. Docetaxel-induced apoptosis was inhibited in Capan-1 cells with CHFR-overexpression. A reduction in CHFR expression was detected in 51.9% of patients with PDAC, which significantly correlated with later T-stage. The results show CHFR functions as a tumor suppressor in pancreatic cancer, suggests its potential role in controlling the cell cycle of pancreatic cancer cells; however, CHFR overexpression is not a favorable factor in apoptosis induced by docetaxel. PMID- 29344248 TI - Survival prediction in patients with resectable colorectal liver metastases: Clinical risk scores and tumor response to chemotherapy. AB - Clinical risk scores and response to pre-operative chemotherapy are prognostic factors of colorectal liver metastases. The aim of the present study was to evaluate the effectiveness of combining these factors to predict patient survival and to select patients for curative therapy. The study included 189 patients who underwent hepatectomy following neo-adjuvant chemotherapy, for initially resectable colorectal liver metastases, between January 2005 and December 2015. Patients were stratified into four sub-groups: A1-2, low clinical risk scores with/without a response to pre-operative chemotherapy; and B1-2, high clinical risk scores with or without a response to pre-operative chemotherapy. Treatment and survival data were analysed. Survival was significantly longer in patients with low clinical risk scores and a response to pre-operative chemotherapy; these factors were confirmed as independent prognostic factors by multivariate analysis. Combining clinical risk score and chemotherapy response classification, patient survival was significantly longer for groups A1-2/B1 compared with for group B2, in which only 10.2% of patients were alive after 5 years. Of those with no response to first-line chemotherapy, survival was significantly longer in patients who responded to second-line chemotherapy. A combined clinical risk score and chemotherapy response classification may aid in identifying suitable candidates for potentially curative therapy. PMID- 29344249 TI - Estradiol suppresses phosphorylation of ERalpha serine 167 through upregulation of PP2A in breast cancer cells. AB - Aromatase inhibitors (AIs) are effective endocrine therapeutics for postmenopausal women with estrogen receptor (ER)alpha-positive breast cancer. However, the efficacy of the treatment is often limited by the onset of AI resistance, owing to the phosphorylation of ERalpha serine 167 (Ser167). Previous studies have indicated that hyperactivation of the phosphoinositide-3 kinase/RAC serine/threonine-protein kinase signaling pathway occurs in AI-resistant breast cancer models, which coincides with elevated levels of ERalpha phosphorylation at Ser167. The tumor suppressor serine/threonine-protein phosphatase 2A (PP2A) regulates the phosphatidylinositol 3-kinase/RAC serine/threonine-protein kinase signaling pathway. A previous study indicated that PP2A inhibition decreased ERalpha Ser167 phosphorylation and estradiol (E2)-independent cell growth. The present study investigated the potential relevance of PP2A in E2 deprivation resistant MCF-7 cells. E2 depletion reduced the susceptibility of MCF-7 cells to inhibitors of mechanistic target of rapamycin (mTOR) and significantly increased ERalpha Ser167 phosphorylation and decreased expression of PP2A. Conversely, long term E2-deprived (LTED) MCF-7 cells, a model of AI-resistant breast cancer, exhibited decreased ERalpha Ser167 phosphorylation and further upregulation of PP2A in E2-containing medium. The PP2A activator forskolin (FSK) significantly inhibited LTED cell proliferation by increasing the effect of everolimus (Eve), an mTOR inhibitor. In summary, the present study provides further evidence that PP2A represents a therapeutic target for AI-resistant breast cancer. PMID- 29344250 TI - Prevention of body weight loss and sarcopenia by a novel selective androgen receptor modulator in cancer cachexia models. AB - Cancer cachexia is a syndrome that impairs the quality of life and overall survival of patients, and thus the effectiveness of anticancer agents. There are no effective therapies for cancer cachexia due to the complexity of the syndrome, and insufficient knowledge of its pathogenesis results in difficulty establishing appropriate animal models. Previously, promising results have been obtained in clinical trials using novel agents including the ghrelin receptor agonist anamorelin, and the selective androgen receptor modulator (SARM) enobosarm to treat cachexia in patients with cancer. The present study examined the pharmacological effects of SARM-2f, a novel non-steroidal small molecule SARM, in animal models. SARM-2f increased body and skeletal muscle weight without significantly increasing the weight of the seminal vesicles or prostates of the castrated male rats. In the mice with tumor necrosis factor alpha-induced cachexia, SARM-2f and TP restored body weight, carcass weight, and food consumption rate. In the C26 and G361 cancer cachexia animal models, body and carcass weight, lean body mass, and the weight of the levator ani muscle were increased by SARM-2f and TP treatments. Tissue selectivity of SARM-2f was also observed in these animal models. The results demonstrate the anabolic effects of SARM-2f in a cytokine-induced cachexia model and other cancer cachexia models, and suggest that SARM-2f may be a novel therapeutic option for cachexia in patients with cancer. PMID- 29344251 TI - miR-218 inhibits acute promyelocytic leukemia cell growth by targeting BMI-1. AB - Acute promyelocytic leukemia (APL) is a subtype of acute myelocytic leukemia. Previous studies have reported a number of functions and therapeutic roles of microRNAs (miRs) in APL, and have suggested that miR-218 acts as a tumor suppressor in a number of types of human cancer; however, its role in APL remains unclear. In the present study, the expression of miR-218 and its effects on the viability and proliferation of HL-60 cells was investigated. Reverse transcription-quantitative polymerase chain reaction analysis demonstrated that miR-218 was frequently downregulated in APL marrow tissues compared with normal marrow tissues. Overexpression of miR-218 significantly inhibited cell proliferation, arrested the cell cycle in the G0/G1 phase and induced apoptosis. In addition, B-cell-specific Moloney murine leukemia virus integration site 1 (BMI-1) mRNA expression was negatively associated with miR-218 expression; BMI-1 mRNA and protein expression were downregulated following transfection with miR 218 mimic. These results indicate that miR-218 functions as tumor suppressor in APL, and the miR-218/BMI-1 signaling axis may be a potential novel diagnostic marker and therapeutic target for the treatment of APL. PMID- 29344252 TI - iTRAQ-based quantitative proteomic analysis and bioinformatics study of proteins in retinoblastoma. AB - The aim of the present study was to analyze proteins in the aqueous humor (AH) of patients' retinoblastoma (RB), and investigate their potential role in RB using the comparative proteomic technique of isobaric tags for relative and absolute quantitation (iTRAQ) coupled with offline two-dimensional liquid chromatography tandem mass spectrometry. A total of 0.1 ml AH was collected from 10 children with RB (mean age, 3.8 years; range, 2-5 years) and patients with senile cataracts (mean age, 70.4 years; range, 65-79 years), which was used as the control. iTRAQ was used to analyze proteins in the AH of patients and controls. Proteins with a fold change of >1.20 or <0.83 were considered to be significantly differentially expressed (with corrected P<0.05). The identified proteins were subjected to subsequent gene ontology (GO) analysis using the DAVID database. A total of 83 proteins that were expressed differently between the controls and patients' AH samples were identified using iTRAQ analysis. Of these proteins, 44 were upregulated and 39 were downregulated. On the basis of biological processes in GO, the identified proteins were primarily involved in glycoprotein, amyloid acute-inflammatory and defensive responses. Among these proteins, pigment epithelium-derived factor serves a potential role in the treatment of RB, and stimulated by retinoic acid 6 may serve as a potential protein involved in RB development. To the best of our knowledge, the present study is the first to identify 83 proteins associated with RB using iTRAQ technology. The results of the present study will aid in furthering the understanding of RB and developing novel therapy targets in the future. PMID- 29344253 TI - Diagnostic value of medical thoracoscopy in malignant pleural effusion induced by non-Hodgkin's lymphoma. AB - Malignant pleural effusion (MPE) appears in up to 20% of patients with non Hodgkin's lymphoma (NHL). The present study aimed to assess the efficacy of medical thoracoscopy (MT) in the diagnosis of patients with MPE induced by NHL. Between July 2005 and June 2014, 833 patients with pleural effusions of unknown etiology underwent MT in Beijing Chaoyang Hospital (Beijing, China), where diagnostic thoracocentesis or/and blind pleural biopsy had failed to yield an answer. Demographic, radiographic, thoracoscopic, histological and immunophenotyping data of 10 NHL patients with MPE were then retrospectively analyzed. Under medical thoracoscopy, pleural nodules (in n=6 patients), hyperemia (n=5), plaque-like lesions (n=4), pleural thickening (n=3), cellulose (n=3), ulcer (n=2), adhesion (n=2), and scattered hemorrhagic spots (n=1) were observed on the surface of parietal pleura. Histopathological and immunohistochemical analysis of pleural biopsy samples led to a correct diagnosis of B-cell NHL in 7 patients and T-lymphoblastic NHL in 2 patients. Data from the present study demonstrated that pleural biopsy through MT achieved a definite diagnosis of NHL in 9 out of 10 (90%) patients with MPE induced by NHL. Therefore, MT is a useful method for diagnosing MPE induced by NHL. PMID- 29344254 TI - Inhibitory effect of the low-toxic exogenous aryl hydrocarbon receptor modulator 3'3-diindolylmethane on gastric cancer in mice. AB - 3'3-Diindolylmethane (DIM) has been proved to exhibit anticancer properties in many solid tumors. In our previous study, we demonstrated that DIM inhibited SGC7901 cell proliferation by inducing apoptosis and delaying cell cycle progression. Herein, we further explored the anti-tumor effect of DIM on SGC-7901 tumor bearing mice. Tumors were excised, weighed, and tested by western blot and TdT-UTP nick-end labeling (TUNEL) assay. Blood samples were collected for biochemical analysis. The expression levels of AhR and cytochrome P450, family 1, subfamily A, polypeptide 1 (CYP1A1) protein were evaluated by western-blot assay. Our data show that with the increase of DIM dose (0, 5, 10, 20 mg/kg/day), AhR protein gradually decreased as CYP1A1 protein increased. The weight of the tumors found in the treated animals was significantly lower than that of the control group (0.845+/-0.096 vs. 1.275+/-0.236 g, 0.768+/-0.161 vs. 1.275+/-0.236 g, 0.607+/-0.106 vs. 1.275+/-0.236 g, P<0.05). TUNEL test showed that DIM induced increased apoptosis in the treatment groups in a dose-dependent manner. Blood tests also indicated that DIM showed no toxic effect on animal weight or liver and kidney function. These results indicated that DIM agent could be a safe and potent drug in therapy of gastric cancer. PMID- 29344255 TI - Plasma olfactomedin 4 level in peripheral blood and its association with clinical features of breast cancer. AB - The present study aimed to investigate the expression of olfactomedin 4 (OLFM4) in plasma of patients with breast cancer and its association with diagnosis, metastasis and prognosis of breast cancer. OLFM4 gene expression level of peripheral blood plasma in 60 patients with breast cancer and 26 healthy donors was examined by ELISA. The expression of OLFM4 in tumor tissues of patients with breast cancer was evaluated by immunohistochemistry (protein expression) and reverse transcription-quantitative polymerase chain reaction (mRNA expression), respectively. Circulating tumor cells (CTCs) were detected in a certain set of patients. The expression of OLFM4 in plasma of the overall healthy people was higher compared with patients with breast cancer. The plasma OLFM4 level in patients with breast cancer was consistent with the expression of OLFM4 protein in tumor tissues (R2=1), indicating that the level of plasma OLFM4 expression may represent the expression of OLFM4 in breast cancer tissues. The plasma OLFM4 level in patients with histological grade I was significantly lower compared with grade III (P<0.05). Breast cancer patients with positive CTC were associated with low level of plasma OLFM4. These results suggest that low OLFM4 expression in plasma or tissue specimens of breast cancer patients is more likely to represent low histological differentiation and decreased invasive/metastatic capabilities. Taken together, plasma OLFM4 level may be considered as a biomarker for diagnosis and prognosis of breast cancer for cases where there are difficulties in obtaining tumor tissue samples. PMID- 29344256 TI - Pien Tze Huang inhibits the growth of hepatocellular carcinoma cells by upregulating miR-16 expression. AB - Hepatocellular carcinoma (HCC) is characterized by uncontrolled proliferation and the deregulation of apoptotic signaling, although its molecular pathogenesis is not fully characterized. The ability to inhibit excessive proliferation and induce the apoptosis of cancer cells are crucial characteristics of anticancer drugs. Pien Tze Huang (PZH) is a widely used traditional Chinese medicine for the treatment of various types of cancer, and has exhibited promising therapeutic effects in clinical trials of HCC. However, the underlying mechanisms for its action are unclear. In the present study, the aim was to explore the effect of PZH on the proliferation and apoptosis of the BEL-7402 HCC cell line, and the associated mechanisms. PZH treatment significantly inhibited BEL-7402 cell viability, confluence and clonogenicity, inducing cell cycle arrest and promoting apoptosis. In addition, PZH treatment suppressed the expression of the pro proliferative genes cyclin D1 and cyclin-dependent kinase 4, and decreased the expression of the anti-apoptotic gene Bcl-2. PZH treatment also upregulated the expression of a key microRNA (miR), miR-16. The study demonstrated that PZH can effectively inhibit cancer cell proliferation and induce apoptosis in BEL-7402 HCC cells via the upregulation of the tumor suppressor miR-16. PMID- 29344257 TI - Involvement of soluble B7-H3 in combination with the serum inflammatory cytokines interleukin-17, -8 and -6 in the diagnosis of hepatocellular carcinoma. AB - Previous studies have demonstrated that B7-H3, and the inflammatory cytokines interleukin (IL)-17, IL-8 and IL-6, are involved in the development of a variety of tumors. The objectives of the present study were: i) To investigate the association between soluble B7-H3 (sB7-H3) and cytokine levels of IL-17, IL-8 and IL-6 in the serum of patients with hepatocellular carcinoma (HCC); and ii) to determine their potential value for use in HCC diagnosis. Serum sB7-H3, IL-17, IL 8 and IL-6 levels in the HCC patients and healthy control subjects were measured using ELISA. The accuracy of each of these biomarkers in HCC diagnosis was compared using a receiver operating characteristic curve and the area under the curve (AUC). A logistic regression model was used to investigate the accuracy of diagnosing HCC when evaluated using combined determinations of sB7-H3, IL-17, IL 8 and IL-6 levels. The data demonstrated that serum levels of sB7-H3, IL-17, IL-8 and IL-6 were significantly increased in HCC patients compared with those in the healthy control group. Serum sB7-H3 levels were positively associated with serum IL-17, whereas serum IL-8 levels were negatively correlated with serum IL-17 levels. The AUC values for sB7-H3, IL-17, IL-8 and IL-6 were 83.2, 65.7, 95.3 and 97.0%, respectively, and indicated that all four biomarkers exhibited a statistically significant capacity for diagnosing HCC. Using the logistic regression model, the AUC value, sensitivity and specificity, as determined for the combination of the four biomarkers, were 99.2, 96.67 and 97.14%, respectively. This was significantly greater than that achieved when any single biomarker was used alone in the logistic regression model to assess their accuracy in HCC diagnosis. The optimum cutoff value of the predicted probability obtained by the combination of sB7-H3, IL-17, IL-8 and IL-6 in the regression model was 0.5745. To conclude, the present study revealed that there exists a positive association between serum sB7-H3 and IL-17 levels in HCC patients. Determinations involving the combination of serum sB7-H3, IL-17, IL-8 and IL-6 levels demonstrate great potential for use in HCC diagnosis. PMID- 29344258 TI - Involvement of breast cancer stem cells in tumor angiogenesis. AB - The aim of the present study was to investigate the role of breast cancer stem cells (BCSCs) in the angiogenesis of breast cancer tumors. The expression levels of mutant p53, cluster of differentiation (CD)31, vascular endothelial factor (VEGF), in addition to human epidermal growth factor (HER)2, were detected in the blood vessels of human breast cancer (BC) tissue samples. CD44+/CD24-/low cells were selected from single-cell suspensions of BC tissues to assess the expression of CD31 and CD105, in addition to the ability of these cells to metabolize acetylated low-density lipoprotein (Ac-LDL). Furthermore, vascular-like structures were observed histologically. Mutant p53, CD31 and VEGF were all expressed in these tissues. CD44+ cells comprised 7.5+/-2.6 and 94.3+/-4.7% of the cell population prior to and following sorting, respectively. CD24+ cells comprised 48.2+/-9.4 and 4.3+/-4% of the cell population prior to and following sorting, respectively. A low proportion of CD24+ cells corresponded to a high proportion of CD24-/low cells. The percentages of CD105+ and CD31+ glomus cells in the mammary gland were 4.5+/-0.9 and 6.2+/-1.3%, respectively, and following passaging for three generations, these increased to 79.6+/-9.3 and 84.1+/-10.7%, respectively (P<0.05). Cells were cultured using an endothelial cell culture system, and they internalized DiL-Ac-LDL. Here, vascular endothelial cells formed vascular-like structures, whereas the control group demonstrated no such structures. Overall, the results suggest that BCSCs-derived endothelial cells may contribute to tumor angiogenesis. PMID- 29344259 TI - Lesions of the central nervous system in leukemia: Pathological and magnetic resonance imaging features at presentation in 14 patients. AB - The present study aimed to characterize the specific pathology and magnetic resonance imaging (MRI) findings observed in patients with leukemia with central nervous system (CNS) lesions, and to determine their value in the management of such patients. Lesions of the CNS were observed during and following treatment of leukemia. The data from stereotactic biopsy-proven pathology (12 patients) and MRI examinations (14 patients) were retrospectively evaluated. Proton-magnetic resonance-spectroscopy was performed in three patients. Factors that predisposed to lesions of the CNS were reviewed from the patient medical records. Among the 14 patients, eight had CNS leukemia, four had a CNS infection and two had a neurodegenerative disorder (one leukoencephalopathy and one glial cell hyperplasia). The clinical diagnosis based on clinical symptoms, signs and MRI features was not consistent with the pathological diagnosis in two patients. In one patient, the clinical diagnosis was a CNS infection; however, the patient's pathological diagnosis was CNS leukemia. In the other patient, the clinical diagnosis was CNS leukemia, but the pathological diagnosis was glial cell hyperplasia. CNS lesions in leukemia have a wide range of causes. Apart from the relapse of leukemia in the CNS, there are treatment-associated neurotoxicities and infections that are caused by immunocompromised states. As numerous leukemia associated CNS lesions are treatable, early diagnosis is essential. PMID- 29344260 TI - DR2 blocker thioridazine: A promising drug for ovarian cancer therapy. AB - Dopamine receptor 2 (DR2) may be a biomarker for various types of cancer. Ovarian cancer cells overexpress DR2; therefore, blocking DR2 may be a novel treatment strategy for ovarian cancer. Thioridazine, a DR2 blocker, has antineoplastic activity in a variety of cancer cells. In view of the requirement for novel therapeutic agents in ovarian cancer, the present study aimed to determine the potential effects of thioridazine in vitro and in vivo. It was revealed that the DR2 blocker thioridazine induced cell death in a dose-dependent manner in ovarian cancer cells. Thioridazine treatment induced apoptosis and autophagy, which may be attributed to an increased level of reactive oxygen species and associated DNA damage. Additionally, the expression of various proteins increased with oxidative stress, including nuclear factor E2-related factor 2, which is a pivotal transcriptional factor involved in cellular responses to oxidative stress. Heme oxygenase 1, NAPDH quinone dehydrogenase 1 and hypoxia inducible factor-1alpha and phosphorylated (p)-protein kinase B expression was significantly decreased, and the expression level of p-extracellular signal-related kinases and p-P38 was increased. Using 3-methyl adenine to inhibit autophagy caused the rate of apoptosis to increase. Thioridazine inhibited the growth of SKOV3 xenografts in nude mice. The present study demonstrated that the DR2 blocker thioridazine exhibited anticancer effects in vitro and in vivo, suggesting that thioridazine may be used as a potential drug in ovarian cancer therapy. PMID- 29344261 TI - T cell acute lymphoblastic lymphoma complicated with myeloid sarcoma in an adult: A case report. AB - The present case report describes a rare case of T cell acute lymphoblastic lymphoma (T-LBL) in the lymph node with myeloid sarcoma in the pericardium. A 33 year-old Chinese male was admitted to hospital on 4 July 2015 exhibiting a fever and having experienced wheezing and fatigue for the previous 7 days. Routine pathological, computed tomographic, cytological and immunophenotypic observations revealed a diagnosis of T-LBL in the lymph node on 7 August 2015, without evidence of bone marrow (BM) involvement. The patient received induction chemotherapy for T-LBL and achieved partial remission. The patient was identified to have multiple serous effusion and analysis of pericardial effusion cells revealed the diagnosis of T-LBL with extramedullary myeloid sarcoma (without BM involvement) on 25 November 2015. On 30 December 2015, the patient was identified to exhibit proliferation of primary myeloid cells in the peripheral blood and BM, and an abnormal karyotype in BM cells, indicating that the complicated myeloid sarcoma involved the BM. No matched donor was available so the patient received chemotherapy to manage the disease. The patient was discharged on 31 January 2016 and ceased treatment. The patient succumbed on 19 February 2016 at home. To the best of our knowledge, T-LBL complicated with myeloid sarcoma had not been previously reported in Chinese adult male patients. In addition, the involvement of the BM and aberrant karyotype of the complicated myeloid sarcoma in the patient were rare. PMID- 29344262 TI - Hedyotis diffusa willd extract suppresses colorectal cancer growth through multiple cellular pathways. AB - The development of colorectal cancer (CRC) is strongly associated with the imbalance of various intracellular signal transduction cascades, including protein kinase B (AKT), mitogen-activated protein kinase 1 (MAPK), signal transducer and activator of transcription 3 (STAT3), as well as crosstalk between these signaling networks. At present, anti-tumor agents are often single-targeted and therefore are not always therapeutically effective. Moreover, long-term use of these anti-tumor agents often generates drug resistance and potential side effects. These problems highlight the urgent need for the development of novel and more effective anti-cancer drugs. Hedyotis diffusa Willd (HDW) has been used as a major component in traditional Chinese medicine for the clinical treatment of colorectal cancer, with a limited number of adverse effects. However, the molecular mechanisms, which underlie its anti-cancer activity, still require further elucidation. In the present study, using xenograft models and various different human CRC cell lines, the efficacy of the ethanol extract of HDW (EEHDW) against tumor growth was evaluated, and its underlying molecular mechanisms of action were investigated. It was demonstrated that EEHDW was able to inhibit cancer growth in vivo and in vitro. Furthermore, EEHDW was able to suppress the activation of several CRC-associated signaling pathways and was able to regulate the expression of various inflammatory and angiogenic factors. This resulted in the induction of apoptosis and inhibition of cellular proliferation, as well as tumor angiogenesis. The present study demonstrated that EEHDW is able to exhibit anti-cancer activity due to its ability to affect multiple intracellular targets, which suggests that it may be a novel multi-potent therapeutic agent for the treatment of colorectal cancer. PMID- 29344263 TI - Thalidomide inhibits proliferation and epithelial-mesenchymal transition by modulating CD133 expression in pancreatic cancer cells. AB - Pancreatic cancer is a solid malignancy with a high mortality rate, on account of the high incidence of metastasis at the time of detection. The aggressiveness of pancreatic cancer may be partly driven by cancer stem cells (CSCs), which are characterized by the ability to self-renew and recapitulate tumors in the ectopic setting. However, although a number of drugs targeting CSCs are currently under clinical investigation, few effective drugs have been developed. The present study demonstrated that thalidomide inhibited cell proliferation and metastasis in pancreatic cancer cell lines through the inhibition of epithelial mesenchymal transition. The effect of thalidomide was more pronounced in cluster of differentiation 133 (CD133)+ SW1990 cells than in Capan-2 cells, in which CD133 expression was almost undetectable. The results revealed that CD133 is likely to serve a role in the antitumor effect of thalidomide and indicated that thalidomide could be developed as a CSC-specific adjuvant chemotherapy in pancreatic cancer. PMID- 29344264 TI - Preclinical and clinical implications of TERT promoter mutation in glioblastoma multiforme. AB - The promoter region of the telomerase reverse transcriptase gene (TERT) is mutated in a subpopulation of patients with glioblastoma multiforme (GBM). In the present study, preclinical and clinical implications of the mutation were analyzed in 25 GBMs to evaluate its utility as a therapeutic target. Associations between the TERT promoter mutation and a number of preclinical/clinical characteristics were analyzed. Notably, the TERT promoter mutation was identified in 92.3% of GBMs where dissociated cells revealed in vitro sphere formation capacity; while the TERT promoter mutation was identified in 33.3% of GBMs without in vitro sphere formation capacity (P=0.004). In addition, this significantly increased mutation rate was observed in GBMs with in vivo tumorigenic potential (80% vs. 0%; P=0.004). Furthermore, patients with GBM exhibiting the TERT promoter mutation demonstrated significantly decreased overall survival rate compared with patients lacking this mutation (81.7 vs. 152.6 weeks; P=0.026). The results of the present study indicated that the TERT promoter mutation is associated with the self-renewal capacity of GBM cells and clinical aggressiveness of GBMs, which may be translated to a targeting therapy against TERT to inhibit the self-renewal of GBM cells. PMID- 29344265 TI - High expression of PU.1 is associated with Her-2 and shorter survival in patients with breast cancer. AB - The transcription factor PU.1 was previously identified as an oncogene or a tumor suppressor in different types of leukemia. The aim of the present study was to investigate the expression of PU.1 in breast cancer and to analyze its association with clinical features and prognosis. Immunohistochemistry was used to determine PU.1 expression in breast cancer tissue microarrays and paraffin embedded sections. The association between PU.1 expression and clinicopathological factors was assessed by using chi-square test. The survival analysis of patients was conducted by using Kaplan-Meier analysis and log-rank tests. Cox regression was utilized for univariate and multivariate analyses of prognostic factors. The results indicated that the expression level of PU.1 protein in breast cancer samples was significantly higher compared with normal breast tissues (P=2.63*10-8). Furthermore, the level of PU.1 expression was detected to be positively associated with androgen receptor (P=0.027) and human epidermal growth factor receptor 2 status (P=2.03*10-21) as well as molecular subtype (P=3.51*10-11). Furthermore, patients with negative PU.1 expression had longer OR compared with those with positive PU.1 expression (P=3.67*10-4). Multivariate Cox regression analysis revealed that PU.1 expression level and tumor-node-metastasis stage were independent prognostic factors for overall survival (P=0.034 and P=0.018, respectively). Therefore, PU.1 protein expression may contribute to breast cancer progression and may be a valuable molecular marker to predict the prognosis of patients with breast cancer. PMID- 29344266 TI - Erratum: HBV suppresses thapsigargin-induced apoptosis via inhibiting CHOP expression in hepatocellular carcinoma cells. AB - [This corrects the article DOI: 10.3892/ol.2017.6666.]. PMID- 29344268 TI - Interferon-gamma and Colorectal Cancer: an up-to date. AB - Colorectal cancer still remains the third cause of cancer death among cancer patients. Early diagnosis is crucial and they can be either endoscopic or with blood biomarkers. Endoscopic methods consist of gastroscopy and colonoscopy, however; in recent years, endoscopic ultrasound is being used. The microenvironment is very important for the successful delivery of the treatment. Several proteins and hormones play a crucial role in the efficiency of the treatment. In the current mini review we will focus on interferon-gamma. PMID- 29344270 TI - Lenvatinib in Advanced Radioiodine-Refractory Thyroid Cancer - A Retrospective Analysis of the Swiss Lenvatinib Named Patient Program. AB - Purpose: Differentiated thyroid cancer (DTC) accounts for approximately 95% of thyroid carcinomas. In the metastatic RAI-refractory disease, chemotherapy has very limited efficacy and is associated with substantial toxicity. With increasing knowledge of the molecular pathogenesis of DTC, novel targeted therapies have been developed. Lenvatinib is a tyrosine kinase inhibitor (TKI) with promising clinical activity based on the randomized phase III SELECT trial. In Switzerland, a Named Patient Program (NPP) was installed to bridge the time gap to Swissmedic approval. Here, we report the results from the Swiss Lenvatinib NPP including patients with metastatic RAI-refractory DTC. Methods: Main inclusion criteria for the Swiss NPP were RAI-refractory DTC, documented disease progression, Eastern Cooperative Oncology Group (ECOG) performance status 0-3. The number of previous therapies was not limited. The Swiss Lenvatinib NPP was initiated in June 2014 and was closed in October 2015 with the approval of the drug. Results: Between June 2014 and October 2015, 13 patients with a median age of 72 years have been enrolled. Most patients (69%) had at least one prior systemic therapy, mainly sorafenib. 31% of patients showed a PR and 31% SD. Median progression free survival was 7.2 months and the median overall survival was 22.7 months. Dose reduction due to adverse events was necessary in 7 patients (53%). At the time of analysis 6 patients (47%) were still on treatment with a median time on treatment of 9.98 months. Conclusions: Our results show that lenvatinib has reasonable clinical activity in unselected patients with RAI refractory thyroid cancer with nearly two-third of patients showing clinical benefit. The toxicity profile of lenvatinib is manageable. PMID- 29344267 TI - Break Breast Cancer Addiction by CRISPR/Cas9 Genome Editing. AB - Breast cancer is the leading diagnosed cancer for women globally. Evolution of breast cancer in tumorigenesis, metastasis and treatment resistance appears to be driven by the aberrant gene expression and protein degradation encoded by the cancer genomes. The uncontrolled cancer growth relies on these cellular events, thus constituting the cancerous programs and rendering the addiction towards them. These programs are likely the potential anticancer biomarkers for Personalized Medicine of breast cancer. This review intends to delineate the impact of the CRSPR/Cas-mediated genome editing in identification and validation of these anticancer biomarkers. It reviews the progress in three aspects of CRISPR/Cas9-mediated editing of the breast cancer genomes: Somatic genome editing, transcription and protein degradation addictions. PMID- 29344269 TI - Early and Partial Reduction in CD4+Foxp3+ Regulatory T Cells during Colitis Associated Colon Cancer Induces CD4+ and CD8+ T Cell Activation Inhibiting Tumorigenesis. AB - Colorectal cancer (CRC) is the second most commonly diagnosed cancer in women and the third in men in North America and Europe. CRC is associated with inflammatory responses in which intestinal pathology is caused by different cell populations including a T cell dysregulation that concludes in an imbalance between activated T (Tact) and regulatory T (Treg) cells. Treg cells are CD4+Foxp3+ cells that actively suppress pathological and physiological immune responses, contributing to the maintenance of immune homeostasis. A tumor-promoting function for Treg cells has been suggested in CRC, but the kinetics of Treg cells during CRC development are poorly known. Therefore, using a mouse model of colitis associated colon cancer (CAC) induced by azoxymethane and dextran sodium sulfate, we observed the dynamic and differential kinetics of Treg cells in blood, spleen and mesenteric lymph nodes (MLNs) as CAC progresses, highlighting a significant reduction in Treg cells in blood and spleen during early CAC development, whereas increasing percentages of Treg cells were detected in late stages in MLNs. Interestingly, when Treg cells were decreased, Tact cells were increased and vice versa. Treg cells from late stages of CAC displayed an activated phenotype by expressing PD1, CD127 and Tim-3, suggesting an increased suppressive capacity. Suppression assays showed that T-CD4+ and T-CD8+ cells were suppressed more efficiently by MLN Treg cells from CAC animals. Finally, an antibody-mediated reduction in Treg cells during early CAC development resulted in a better prognostic value, because animals showed a reduction in tumor progression associated with an increased percentage of activated CD4+CD25+Foxp3- and CD8+CD25+ T cells in MLNs, suggesting that Treg cells suppress T cell activation at early steps during CAC development. PMID- 29344271 TI - Clinical-pathological Characteristics and Prognostic Factors for Papillary Thyroid Microcarcinoma in the Elderly. AB - Background: The incidence of papillary thyroid microcarcinoma (PTMC) has increased dramatically over the past three decades worldwide. The annual rate of increase in the elderly (>=65) PTMC patients is 1.4 times higher than that in the adult (<65) PTMC patients. The aim of the present study is to identify the clinical-pathological characteristics and prognostic factors in the elderly PTMC patients. Methods: The source population is PTMC patients whose information is available in the Surveillance, Epidemiology and End Results (SEER) database (2004 2013). We analyzed specific selected clinical-pathological parameters and prognostic factors for the PTMC patients who were aged 65 or above (N=4812). Results: Within the elderly group, the male patients, in comparison to the females, had a higher percentage of lymph-node metastases (5.29% vs. 12.27%, P < 0.001), distant metastasis (0.27% vs. 1.07%, P < 0.001), and stage III-IV tumors (9.19% vs. 15.85%, P < 0.001). Moreover, the elderly patients had a lower median cause-specific survival (CSS) compared with the adult patients (P < 0.001). Stage III-IV disease (hazard ratio (HR): 8.064, P < 0.001) was a strong risk factor for PTMC CSS. Being female (HR: 0.440, P = 0.011), total thyroidectomy (HR: 0.057, P = 0.001), and lobectomy (HR: 0.058, P < 0.001) were all strong protectors of PTMC CSS. Conclusion: Thyroidectomy improved CSS of the elderly PTMC patients. Compared with thyroid lobectomy, total thyroidectomy did not increase CSS for the elderly PTMC patients. The elderly PTMC patients who received radio therapy did not experience an increase in CSS. PMID- 29344272 TI - Cancer vaccine: learning lessons from immune checkpoint inhibitors. AB - Cancer vaccines have been exclusively studied all through the past decades, and have made exceptional achievements in cancer treatment. Few cancer vaccines have been approved by the US Food and Drug Administration (FDA), for instance, Provenge, which was approved for the treatment of prostate carcinoma in 2012. Moreover, more recently, T-VEC got approval for the treatment of melanoma. While, the overall therapeutic effects of cancer vaccines have been taken into consideration as below expectations, low antigenicity of targeting antigen and tumor heterogeneity are the two key limiting barriers encountered by the cancer vaccines. Nonetheless, recent developments in cancer immune-therapies together with associated technologies, for instance the unparalleled achievements bagged by immune checkpoint inhibitor based therapies and neo-antigen identification tools, envisage potential improvements in cancer vaccines in respect to the treatments of malignancies. This review brings forth measures for the purpose of refining therapeutic cancer vaccines by learning lessons from the success of PD-1 inhibitor based immune-therapies. PMID- 29344273 TI - A single nucleotide polymorphism in CYP1B1 leads to differential prostate cancer risk and telomere length. AB - BACKGROUND: Cytochrome P450 1B1 (CYP1B1) is a key enzyme in its oestrogen metabolism pathway, giving rise to hydroxylation and conjugation. Functionally relevant genetic variants within CYP1B1 may affect the telomere length and subsequently lead to prostate carcinogenesis. METHODS: We evaluated 8 CYP1B1 tag single nucleotide polymorphisms (SNPs) in 1015 men with prostate cancer (PCa) and 1052 cancer-free controls, and calculated odds ratios (ORs) and 95% confidence intervals (CIs) to estimate their association with risk of PCa. The influence of CYP1B1 SNPs on the relative telomere lengths was then appraised in peripheral blood leukocytes using real-time PCR. RESULTS:CYP1B1 rs1056836 variant was associated with decreased risk of PCa [odds ratio (OR): 0.80; 95% confidence interval (CI): 0.68-0.99, P = 0.041]. Longer telomere length showed a significantly higher proportion of the CYP1B1 rs1056836 CG/GG genotypes, compared with that of the CC genotype (OR: 1.60, 95% CI: 1.04-2.45). CONCLUSION: Our findings suggest that genetic variants within CYP1B1 may confer genetic susceptibility to PCa by altering telomere length. PMID- 29344274 TI - Immunotherapy of patient with hepatocellular carcinoma using cytotoxic T lymphocytes ex vivo activated with tumor antigen-pulsed dendritic cells. AB - Purpose The aim of this study was to evaluate the clinical response of immunotherapy with dendritic cell-cytotoxic T lymphocytes (DC-CTLs) in patients with hepatocellular carcinoma (HCC). Method Sixty-eight patients with a confirmed diagnosis of HCC and who received follow-up until December 2015 were enrolled. We measured immune phenotypes of DCs and activated T cells using flow cytometry and clinical indexes using an electrochemiluminescence method. Results DCs exhibited up-regulation of the maturation markers CD83, CD80, CD11c, and CD86 on day8. Levels of IFN-gamma and TNF-alpha were higher in the DCs pulsed with tumor associated antigens (TAAs) than in DCs with a non-proliferative recombinant adenovirus. The percentage of regulatory T cells (Tregs) decreased in patients after DC-CTLs therapy. In addition, serum levels of AFP, AFP-L3, ALT, and CA19-9 were significantly reduced in these patients. Quality of life was improved, especially on physical functioning scales. Median overall survival (OS) and progression-free survival (PFS) were 8.2 months and 4.3 months, respectively, for the control group and 12.8 months and 9 months, respectively, for the DC-CTL group. Patients treated with DC-CTLs therapy showed a statistically significant PFS and OS curve (OS: p=0.016; PFS: p<0.0001). In addition, no serious adverse reactions were observed. Conclusion This study indicated that Tregs, as well as serum levels of AFP, AFP-L3, ALT, and CA19-9, which were correlated with a poor prognosis, decreased after DC-CTL treatments. The OS, PFS and the quality of life of HCC patients partially improved. PMID- 29344275 TI - Genistein Promotes Proliferation of Human Cervical Cancer Cells Through Estrogen Receptor-Mediated PI3K/Akt-NF-kappaB Pathway. AB - Phytoestrogens are polyphenol compounds which have similar structure to 17beta estradiol (E2), a kind of main estrogen in women. Thus, phytoestrogens may affect the reproductive and endocrine systems, leading to the development of estrogen related cancers. The effect of genistein (Gen), one of the most studied phytoestrogens, on human cervical cancer cells (HeLa) was investigated in this study. It was found that Gen at concentrations of 0.001, 0.01, 0.1 and 1 umol.L-1 promoted the proliferation of HeLa cells in a dose-dependent manner. Gen increased the portion of HeLa cells in S phase and decreased the portion of the cells in G1 phase. Besides, apoptosis rate of the cells was significantly lower when treated with Gen compared with the control group. It was also found that the expression of ERalpha, Akt or nuclear NF-kappaB p65 protein was activated by Gen. The correlation between these three proteins may be as following: ERalpha was the upstream, followed by Akt, and then nuclear NF-kappaB p65 protein. In addition, the downstream genes of activated nuclear NF-kappaB p65 were found to be associated with cell cycle and apoptosis of cancer cells. Our results suggested that Gen may stimulate cell proliferation partially through the estrogen receptor mediated PI3K/Akt-NF-kappaB pathway and the further activation of the downstream genes of nuclear NF-kappaB p65. PMID- 29344276 TI - The Clinicopathological Features and Survival Outcomes of Different Histological Subtypes in Triple-negative Breast Cancer. AB - Purpose: To determine the clinicopathological features and survival outcomes of triple-negative breast cancer (TNBC) according to different histological subtypes. Methods: Using the Surveillance, Epidemiology, and End Results database, we included TNBC cases in 2010-2013. The effect of histological subtype on breast cancer-specific survival (BCSS) and overall survival (OS) were analyzed using univariate and multivariate analyses. Results: A total of 19,900 patients were identified. Infiltrating ductal carcinoma not otherwise specified accounted for 91.6% of patients, followed by metaplastic carcinoma (2.7%), medullary carcinoma (1.4%), mixed lobular-ductal carcinoma (1.4%), lobular carcinoma (1.3%), apocrine carcinoma (1.0%), and adenoid cystic carcinoma (0.6%). Medullary carcinoma was more frequently poorly/undifferentiated. Significantly more lobular carcinoma, mixed lobular-ductal carcinoma, and metaplastic carcinoma patients had larger tumors. Adenoid cystic carcinoma, metaplastic carcinoma, medullary carcinoma, and apocrine carcinoma were more frequently node-negative. Lobular carcinoma (16.0%) and mixed lobular-ductal carcinoma (10.4%) more frequently had distant stage at initial diagnosis. Histologic subtype was an independent prognostic factor of BCSS and OS. Compared with infiltrating ductal carcinoma, medullary carcinoma and apocrine carcinoma had better BCSS and OS, while mixed lobular-ductal carcinoma and metaplastic carcinoma had worse survival. Adenoid cystic carcinoma survival was not significantly different from that of infiltrating ductal carcinoma. Conclusions: TNBC histological subtypes have different clinicopathological characteristics and survival outcomes. Medullary carcinoma and apocrine adenocarcinoma have excellent prognosis; mixed lobular ductal carcinoma and metaplastic carcinoma are the most aggressive subtypes. PMID- 29344277 TI - Capn4 overexpression indicates poor prognosis of ovarian cancer patients. AB - Recent studies have shown a close correlation between Capn4 expression and the prognosis of patients with solid tumors. This study aimed to investigate clinical role of Capn4 in ovarian cancer. The expression of Capn4 in 113 ovarian cancer and 35 non-tumor tissue samples were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Capn4 expression was significantly upregulated in ovarian cancer tissues compared with non-tumor tissues (p < 0.01), and was positively correlated to FIGO stage, tumor grade and distant metastasis of ovarian cancer. Kaplan-Meier analysis indicated that patients with high Capn4 expression had shorter overall survival (HR = 1.929, 95%CI: 1.210-3.077, P= 0.006) and progress-free survival (PFS) (HR = 2.043, 95%CI: 1.276-3.271, P= 0.003). Moreover, univariate Cox regression analysis demonstrated that Capn4 overexpression was an unfavorable prognostic factor for ovarian cancer (HR = 2.819, 95%CI: 1.365-3.645, P = 0.003). After the adjustment with age, histological type and tumor size, multivariate Cox regression analysis showed that Capn4 expression level (HR = 2.157,95%CI: 1.091-3.138, P = 0.014), distant metastasis (HR = 1.576, 95%CI: 1.025-3.012, P = 0.028), tumor grade (HR = 1.408, 95%CI: 0.687-2.884, P = 0.037), and FIGO stage (HR = 1.791, 95%CI: 1.016-3.158, P=0.036) were independent poor prognostic indicators for ovarian cancer. In conclusion, Capn4 has the potential as a new prognostic marker for patients with ovarian cancer. PMID- 29344278 TI - Potent peptide-conjugated silicon phthalocyanines for tumor photodynamic therapy. AB - Phthalocyanines (Pcs) are a group of promising photosensitizers for use in photodynamic therapy (PDT). However, their extremely low solubility and their strong tendency to aggregate in aqueous solution greatly restrict their application. Conjugation of Pc macrocycles with peptide ligands could be a very useful strategy to optimize the physical properties of Pcs not only by increasing their water solubility and reducing their aggregation but also by endowing the conjugates with a tumor-targeting capability. To develop highly potent photosensitizers for tumor PDT, we prepared new peptide-conjugated photosensitizers using silicon Pc (SiPc), which has much higher photodynamic activity than zinc Pcs, as the light activation moiety and the cRGDfK peptide (or simply cRGD) as the peptide moiety. A polyethylene glycol linker and an extra carboxylic acid group were also tested for introduction into the conjugates to optimize the conjugate structure. The conjugates' photophysical and photodynamic behaviors were then carefully evaluated and compared using in vitro and in vivo experiments. One of the prepared conjugates, RGD-(Linker)2-Glu-SiPc, showed excellent physical properties and photodynamic activity, with an EC50 (half maximal effective concentration) of 10-20 nM toward various cancer cells. This conjugate eradicated human glioblastoma U87-MG tumors in a xenograft murine tumor model after only one dose of photodynamic treatment, with no tumor regrowth during observation for up to 35 days. The conjugate RGD-(Linker)2-Glu-SiPc thus showed highly promising potential for use in tumor treatment. PMID- 29344279 TI - Positive Expression of SMYD2 is Associated with Poor Prognosis in Patients with Primary Hepatocellular Carcinoma. AB - Purpose: SET and MYND domain-containing protein2 (SMYD2), a histone lysine methyltransferases, is a candidate human oncogene in multiple tumors. However, the expression dynamics of SMYD2 in hepatocellular carcinoma (HCC) and its clinical/prognostic significance are unclear. Methods: The SMYD2 expression profile was examined by quantitative real-time polymerase chain reaction (qRT PCR), and immunohistochemistry (IHC) in HCC tissues and matched adjacent non tumorous tissues. SMYD2 was silenced in HCC cell lines to determine its role in tumor proliferation and cell cycle progression, and the possible mechanism. Spearman's rank correlation, Kaplan-Meier plots and Cox proportional hazards regression model were used to analyze the data. Results: The SMYD2 expression in HCC tissues were significantly up-regulated at both mRNA and protein levels as compared with the matched adjacent non-tumorous tissues. By IHC, positive expression of SMYD2 was examined in 122/163 (74.85%) of HCC and in 10/59 (16.95%) of tumor-adjacent tissues. Positive expression of SMYD2 was correlated with tumor size, vascular invasion, differentiation and TNM stage (P < 0.05). In univariate survival analysis, a significant association between positive expression of SMYD2 and shortened patients' survival was found (P < 0.05). Importantly, SMYD2 expression together with vascular invasion (P < 0.05) provided significant independent prognostic parameters in multivariate analysis. Functionally, SMYD2 silenced markedly inhibited cell proliferation and cell cycle progression in SMMC 7721 cell. Conclusions: Our findings provide evidences that positive expression of SMYD2 in HCC may be important in the acquisition of an aggressive phenotype, and it is an independent biomarker for poor prognosis of patients with HCC. PMID- 29344280 TI - MiR-378 and MiR-1827 Regulate Tumor Invasion, Migration and Angiogenesis in Human Lung Adenocarcinoma by Targeting RBX1 and CRKL, Respectively. AB - MicroRNAs (miRNAs) have been extensively studied over the decades and have been proposed as potential molecular targets for cancer treatment. Studies have shown that miR-378 participates in numerous biological processes in various cancers; whereas miR-1827 has only been reported in pediatric glioma. The mechanism of how miRNAs modulate lung cancer metastasis remains unclear. Our previous study demonstrated that miR-378 is up-regulated while miR-1827 is down-regulated in high invasive lung cancer sub-cell lines, and their biological functions have been described. Here, we report that miR-378 and miR-1827 modulate lung cancer cell invasion and migration via epithelial-mesenchymal transition (EMT). We also demonstrated that cells treated with miR-378 inhibitors or miR-1827 mimics had reduced number of metastases and ectopic vessels in the zebrafish embryo model. We then showed that miR-378 promoted invasion and miR-1827 suppressed migration by targeting RBX1 and CRKL, respectively. Restored protein expression in miRNA overexpressed/ miRNA-suppressed cells attenuated the inhibitory/ inducing effect of the miRNA on lung cancer cells. Collectively, our findings highlight that miR 378 and miR-1827 could serve as novel therapeutic targets in lung cancer. PMID- 29344281 TI - Keratin17 Promotes Tumor Growth and is Associated with Poor Prognosis in Gastric Cancer. AB - Krt17 is a 48kDa protein member of keratin family. Previous literatures have demonstrated Krt17 may play a promotive role in the progression of various malignancies. However, the exact function of Krt17 in the carcinogenesis and the progression of gastric cancer (GC) remains unknown. In the present study, the expression of Krt17 in 20 fresh GC and matched normal tissues were detected and Krt17 was found to be significantly increased in GC tissues compared to normal tissues. And then the immunochemistry was performed to investigate the Krt17 expression in 569 GC tissue specimens, we found that the expression of Krt17 was remarkably positively correlated with the tumor size (P < 0.01), depth of invasion (T) (P < 0.001), lymph node metastasis (N) (P < 0.001), tumor node metastasis (TNM) stage (P < 0.001) and vascular invasion (P < 0.05). High expression of Krt17 predicted a poor prognosis of GC patients. In addition, we showed silencing of Krt17 inhibited GC cell proliferation, migration and invasion, and induced cell apoptosis by altering Bcl2 family protein expression and cleaved caspase3 upregulation. Moreover, silencing of Krt17 led to cell cycle arrest at G1/S stage by decreasing cyclin E1 and cyclin D expression. In conclusion, our findings revealed Krt17 can be used as a novel predictive biomarker, thus providing a novel therapeutic target for GC patients. PMID- 29344282 TI - Clinical Significance of Glycoprotein Non-metastatic B and Its Association with EGFR/HER2 in Gastrointestinal Cancer. AB - Glycoprotein non-metastatic B (GPNMB), a type I transmembrane glycoprotein, is overexpressed in melanoma and breast cancer and promotes cancer-cell invasion and motility. We previously reported cross-talk between GPNMB and human epidermal growth factor receptor 2 (HER2) in breast cancer, suggesting that GPNMB might play an important role in resistance to anti-HER2 therapy in breast cancer. Here, we clarified the association between GPNMB and HER-family proteins in gastrointestinal cancer by examining their relationships using gastric and colorectal cancer cell lines. We found that GPNMB depletion of by small interfering RNA increased epidermal growth factor receptor (EGFR) expression and phosphorylation through AKT8 virus oncogene cellular homolog (AKT) and mitogen activated protein kinase (MAPK) pathways. Additionally, treatment with cetuximab (CTX) also increased GPNMB expression, and combination therapy consisting of GPNMB depletion and CTX treatment significantly suppressed cell growth in colorectal cancer cell lines, but not in gastric cancer cell lines. Furthermore, we also evaluated changes in GPNMB expression in vivo, with immunohistochemistry detecting GPNMB overexpression in a colorectal cancer patient following anti-EGFR therapy. These results suggested possible cross-talk between GPNMB and EGFR, and that GPNMB might play an important role in resistance to anti-EGFR therapy in gastrointestinal cancer. PMID- 29344283 TI - Antigen presentation of the Oct4 and Sox2 peptides by CD154-activated B lymphocytes enhances the killing effect of cytotoxic T lymphocytes on tumor stem like cells derived from cisplatin-resistant lung cancer cells. AB - The present study investigated whether antigen presentation of the Oct4 and Sox2 peptides by CD154-activated B lymphocytes can enhance the killing effect of CD8+ cytotoxic T lymphocytes (CTLs) on lung stem-like cancer cells (SLCCs). The CTLs were generated using an accelerated co-cultured dendritic cells (DC) (acDC) assay by incubating human peripheral blood mononuclear cells (PBMCs) from non-small cell lung cancer patients with antigen peptides of Oct4 and Sox2 in the presence of several DC-activating agents. CD154+ NIH3T3 cells prepared by CD154 lentiviral transfection were used as feeder layer to activate primary B cells (CD19+) obtained from PBMCs. Activated B cells were co-cultured with CTLs to present antigen peptides of Oct4 and Sox2. CTLs co-cultured with activated B cells were evaluated for the levels of secreted inflammatory cytokines using ELISA. In addition, the killing effect of the CTLs on SLCCs derived from cisplatin resistant strain of human lung cancer cell line PC9 was evaluated by flow cytometry using CFSE labeling of the target cells. After the acDC assay, the PBMCs exhibited a significant (p<0.01) increase in the population of CD8+/CD3+ cells, indicating successful preparation of CTLs. The primary B cells cultured on the CD154+ NIH3T3 feeder layer resulted in significant (p<0.01) increase in the proportions of population expressing CD80, CD86, or HLA-A, indicating successful activation of the B cells. The co-culture of CTLs with CD154-activated B cells presenting the Oct4 and Sox2 peptides caused significant increase in the levels of secretory inflammatory cytokines and exhibited enhanced killing of the SLCCs derived from cisplatin-resistant PC9 cells. Antigen presentation of the Oct4 and Sox2 peptides by CD154-activated B cells can enhance the killing effect of CTLs towards lung SLCCs. PMID- 29344285 TI - Long noncoding RNA H19 derived miR-675 regulates cell proliferation by down regulating E2F-1 in human pancreatic ductal adenocarcinoma. AB - The long noncoding RNA (lncRNA) H19 has been proven to be overexpressed in human pancreatic ductal adenocarcinoma (PDAC). H19-induced PDAC cell proliferation is cell cycle-dependent by modulating E2F-1. However, the mechanism of how H19 regulates E2F-1 remains unclear. In this study, we investigated the expression of miR-675 in PDAC tumours and cells, the biological function of miR-675 in PDAC cell proliferation and the possible relationship among H19, miR-675 and E2F-1. As a transcript of the first exon of H19, the level of miR-675 was negatively correlated with H19 expression in microdissected PDAC tissues (r=-0.0646, P=0.001). The serum miR-675 expression was significantly down-regulated in patients with PDAC compared to those in healthy individuals. Moreover, an evaluation of five PDAC cases showed that there was a remarkable increase of serum miR-675 levels after resection of the primary tumours. Ectopic overexpression of miR-675 in AsPC-1 and PANC-1 cells decreased cell viability, the colony-forming ability and the percentage of cells in S phase; contrarily, miR-675 knockdown resulted in enhanced cell proliferation. Furthermore, the suppressed cell proliferation caused by H19 knockdown could be rescued by inhibiting miR-675 expression. Additionally, intratumoural injection of either miR-675 agomir or antagomir could significantly affect tumour growth in vivo. Both the bioinformatic prediction and luciferase activity assay confirmed that E2F-1 was a direct target of miR-675. And the decrease of E2F-1 protein expression caused by siH19 could be partially reversed by miR-675 knockdown. We concluded that there might be a H19/miR-675/E2F-1 regulatory loop in cell cycle modulation. Serum miR-675 might serve as a potential biomarker for not only early diagnosis but also outcome prediction in PDAC. PMID- 29344284 TI - miR-149 in Human Cancer: A Systemic Review. AB - MicroRNAs (miRNAs) are small noncoding RNAs that regulate post-transcriptional gene expression via binding to the 3'-untranslated region (3'-UTR) of targeted mRNAs. They are reported to play important roles in tumorigenesis and progression of various cancers. Among them, miR-149 was confirmed to be aberrantly regulated in various tumors. In this review, we provide a complex overview of miR-149, particularly summarize the critical roles of it in cancers and expect to lay the foundation for future works on this important microRNA. PMID- 29344286 TI - Identification of Biomarker for Cutaneous Squamous Cell Carcinoma Using Microarray Data Analysis. AB - Cutaneous squamous cell carcinoma (CSCC) is one of the most malignant tumors worldwide. We aimed to explore the molecular mechanism of this CSCC and screen feature genes that can function as the biomarker of CSCC and thus provide a theoretical basis for the pathogenesis research and development of medicine. The method of microarray data analysis was used in this study to explore the differentially expressed genes between tissues of normal specimens and tissues of patients with CSCC. Besides, functional enrichment analysis and signal pathway were performed on these genes to screen the feature genes that are closely associated with CSCC can function as the potential biomarkers of CSCC.A total of 53 samples from two datasets, GSE45216 and GSE45164, were used in the differentially expressed analysis. And as a result, a total of 833 genes were screened out, including 465 up-regulated genes and 215 down-regulated genes. Candidate genes, including up-regulated genes like S100A12, MMP1, DEFB4B/DEFB4A, KRT16 and PI3, and down-regulated genes like EGR3, LRP4, C14orf132, PAMR1, CCL27, and KRT2 were screened out. All these genes were testified in the dataset of GSE66359. The result showed that only three genes, KRT16, PI3 and EGR3, were mostly differentially expressed and only EGR3 had the same expression pattern with both datasets, GSE45216 and GSE45164.Of note, EGR3 gene was found to be the most differentially expressed gene in cutaneous squamous cell carcinoma, which had the potential to function as the candidate genes and help in the diagnosis and prognostic treatments of CSCC. PMID- 29344287 TI - Role of miR-483 in digestive tract cancers: from basic research to clinical value. AB - Digestive tract cancers (DTCs) is the most common malignant tumors in the world. Despite surgery and medical technology have witnessed the increasing development and sharp advancement in the past decade, DTCs remain a critical concern with high morbidity and mortality. Since a class of small noncoding RNAs termed miRNAs were identified several years ago, increasing studies have attempted to illustrate the relationship between the specific miRNAs dysregulated expression levels and the diseases phenotypic changes. For example, microRNA-483 (miR-483) aberrant expression plays a pivotal part in tumor biology in a variety of human cancer, including DTCs. In this review, we focus on the present key findings from recent profiling studies, discuss the use of miR-483 as a novel biomarker for DTCs. At the same time, we emphasize the significant diversities and technical difficulties must be overcome before clinically relevant signatures arose. It is believed that this might provide researchers an insight into the molecular targeting cancer treatment. PMID- 29344288 TI - GP73 level determines chemotherapeutic resistance in human hepatocellular carcinoma cells. AB - Objective GP73 is a new hepatocellular carcinoma (HCC) marker, which is highly expressed in hepatocellular carcinoma and closely relates to prognosis. This study was to investigate the effects of GP73 on cellular proliferation, apoptosis, oxaliplatin (OXA) resistance and secretory clusterin (sCLU) of HCC cells. Materials and Methods Western blot and immunofluorescence was used to detect the expression of GP73 in 8 types of commonly used HCC cell lines. Drug resistance was induced by increasing concentration gradient method. The drug resistant human HCC cell lines underwent GP73 overexpression or inhibition. Flow cytometry were used to detect the proliferation and apoptosis of HCC cell lines. The changes of sCLU were detected by enzyme-linked immunosorbent assay (ELISA). Results The expression of GP73 in MHC-97H cells was the highest and in Hep3B cells the lowest. The expression of GP73 was found further elevated in OXA resistant MHC-97H cells. After the knockdown of GP73 in OXA-resistant 97H cells, the IC50 of OXA decreased and the ability of cell proliferation decreased significantly. After over-expression of GP73 in OXA-resistant Hep3B cells, the IC50 of OXA increased and the cell proliferation ability increased, showing that GP73 is critical for OXA resistant in HCC cell lines; No significant change of sCLU level in GP73 overexpressed Hep3B and GP73 blocked MHCC-97H were identified. Conclusion The expression level of GP73 is critical for the resistance of OXA in HCC cell lines. PMID- 29344289 TI - Limb-bud and Heart Overexpression Inhibits the Proliferation and Migration of PC3M Cells. AB - Background: The limb-bud and heart gene (LBH) was discovered in the early 21st century and is specifically expressed in the mouse embryonic limb and heart development. Increasing evidences have indicated that LBH not only plays an important role in embryo development, it is also closely correlated with the occurance and progression of many tumors. However, its function in prostate cancer (PCa) is still not well understood. Here, we explored the effects of LBH on the proliferation and migration of the PCa cell line PC3M. Methods: LBH expression in tissues and cell lines of PCa was detected by immunohistochemistry and Western blotting. Lentivirus was used to transduct the LBH gene into the PC3M cells. Stable LBH-overexpressing PC3M-LBH cells and PC3M-NC control cells were obtained via puromycin screening. Cell proliferation was examined using the 3 (4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) assay. Cell cycle distribution and apoptosis rate were investigated using flow cytometry. Cell migration was studied using the Transwell assay. Results: LBH expression level was down-regulated in 3 different PCa cell lines, especially in PC3M cells, compared with the normal prostate epithelial cells(RWPE-1). Cell lines of LBH upregulated PC3M-LBH and PC3M-NC control were successfully constructed. Significantly increased LBH expression level and decreased cyclin D1 and cyclin E2 expression level was found in PC3M-LBH cells as compared to the PC3M-NC cells. The overexpression of LBH significantly inhibited PC3M cell proliferation in vitro and tumor growth in nude mice. LBH overexpression in PC3M cell, also induced cell cycle G0/G1 phase arrest and decreased the migration of PC3M cells. Conclusions: Our results reveal that LBH expression is down-regulated in the tissue and cell lines of PCa. LBH overexpression inhibits PC3M cell proliferation and tumor growth by inducing cell cycle arrest through down-regulating cyclin D1and cyclin E2 expression. LBH might be a therapeutic target and potential diagnostic marker in PCa. PMID- 29344290 TI - Prophylactic cranial irradiation in resected small cell lung cancer: A systematic review with meta-analysis. AB - Background: The use of PCI in early operable patients with small cell lung cancer (SCLC) is still controversial. Therefore, we conducted a systematic review with meta-analysis to investigate the effects of PCI in resected SCLC patients. Methods: Relevant studies were identified from PubMed and EMBASE databases, the pooled hazard risks were obtained by the random-effects model. We also analyzed the brain metastasis (BM) risk in p-stage I patients without PCI. Results: Five retrospective studies were identified and a total of 1691 patients were included in our analysis, 315 of them received PCI. For all the resected patients, PCI was associated with improved overall survival (HR: 0.52, 95% CI: 0.33-0.82), and reduced brain metastasis risk (RR: 0.50, 95%CI: 0.32-0.78). However, with regard to p-stage I patients, no survival benefit was brought by PCI (HR: 0.87, 95% CI: 0.34-2.24). Moreover, the pooled analysis of 7 studies found that the 5-year brain metastasis risk was relatively low (12%, 95% CI: 8%-17%) for p-stage I patients without PCI. Conclusions: PCI might be associated with a favorable survival advantage and reduced BM risk in complete resected SCLC patients, except for p-stage I patients. PMID- 29344291 TI - In Vivo Double Targeting of C26 Colon Carcinoma Cells and Microenvironmental Protumor Processes Using Liposomal Simvastatin. AB - Purpose: Besides cholesterol lowering effects, simvastatin (SIM) at very high doses possesses antitumor actions. Moreover our previous studies demonstrated that tumor-targeted delivery of SIM by using long-circulating liposomes (LCL) improved the therapeutic index of this drug in murine melanoma-bearing mice. To evaluate whether this finding can be exploited for future therapy of colorectal cancer the antitumor activity and the underlying mechanisms of long-circulating liposomal simvastatin (LCL-SIM) efficacy for inhibition of C26 murine colon carcinoma growth in vivo were investigated. Materials and Methods: To find LCL SIM dose with the highest therapeutic index, dose-response relationship and side effects of different LCL-SIM doses were assessed in C26 colon carcinoma-bearing mice. The underlying mechanisms of LCL-SIM versus free SIM treatments were investigated with regard to their actions on C26 cell proliferation and apoptosis (via tumor tissues immunostaining for PCNA and Bax markers), tumor inflammation (via western blot analysis of NF-kappaBeta production), angiogenesis (using an angiogenic protein array), and oxidative stress (by HPLC assessment of malondialdehyde). Results: Our findings suggest that LCL-SIM antitumor activity on C26 colon carcinoma is a result of the tumor-targeting property of the liposome formulation, as free SIM treatment was ineffective. Moreover, LCL-SIM exerted significant antiproliferative and pro-apoptotic actions on C26 cells, notable suppressive effects on two main supportive processes for tumor development, inflammation and angiogenesis, and only slight anti-oxidant actions. Conclusion: Our data proved that LCL-SIM antitumor activity in C26 colon carcinoma was based on cytotoxic effects on these cancer cells and suppressive actions on tumor angiogenesis and inflammation. PMID- 29344293 TI - Ligand Activation of PPARgamma by Ligustrazine Suppresses Pericyte Functions of Hepatic Stellate Cells via SMRT-Mediated Transrepression of HIF-1alpha. AB - Rationale: Hepatic stellate cells (HSCs) are liver-specific pericytes regulating vascular remodeling during hepatic fibrosis. Here, we investigated how ligustrazine affects HSC pericyte functions. Methods: Rat HSC-T6 and human HSC LX2 cells were cultured, and multiple molecular experiments including real-time PCR, Western blot, flow cytometry, immunofluorescence, electrophoretic mobility shift assay and co-immunoprecipitation were used to elucidate the underlying mechanisms. Molecular simulation and site-directed mutagenesis were performed to uncover the target molecule of ligustrazine. Rats were intoxicated with CCl4 for evaluating ligustrazine's effects in vivo. Results: Ligustrazine inhibited angiogenic cytokine production, migration, adhesion and contraction in HSCs, and activated PPARgamma. Selective PPARgamma inhibitor GW9662 potently abrogated ligustrazine suppression of HSC pericyte functions. Additionally, HIF-1alpha inhibitor PX-478 repressed HSC pericyte functions, and ligustrazine inhibited the transcription of HIF-1alpha, which was diminished by GW9662. Moreover, ligustrazine downregulation of HIF-1alpha was rescued by knockdown of SMRT, and ligustrazine increased PPARgamma physical interaction with SMRT, which was abolished by GW9662. These findings collectively indicated that activation of PPARgamma by ligustrazine led to transrepression of HIF-1alpha via a SMRT dependent mechanism. Furthermore, molecular docking evidence revealed that ligustrazine bound to PPARgamma in a unique double-molecule manner via hydrogen bonding with the residues Ser289 and Ser342. Site-directed mutation of Ser289 and/or Ser342 resulted in the loss of ligustrazine transrepression of HIF-1alpha in HSCs, indicating that interactions with both the residues were indispensable for ligustrazine effects. Finally, ligustrazine improved hepatic injury, angiogenesis and vascular remodeling in CCl4-induced liver fibrosis in rats. Conclusions: We discovered a novel ligand activation pattern for PPARgamma transrepression of the target gene with therapeutic implications in HSC pericyte biology and liver fibrosis. PMID- 29344292 TI - Galectin-3 Activation and Inhibition in Heart Failure and Cardiovascular Disease: An Update. AB - Galectin-3 is a versatile protein orchestrating several physiological and pathophysiological processes in the human body. In the last decade, considerable interest in galectin-3 has emerged because of its potential role as a biotarget. Galectin-3 is differentially expressed depending on the tissue type, however its expression can be induced under conditions of tissue injury or stress. Galectin-3 overexpression and secretion is associated with several diseases and is extensively studied in the context of fibrosis, heart failure, atherosclerosis and diabetes mellitus. Monomeric (extracellular) galectin-3 usually undergoes further "activation" which significantly broadens the spectrum of biological activity mainly by modifying its carbohydrate-binding properties. Self interactions of this protein appear to play a crucial role in regulating the extracellular activities of this protein, however there is limited and controversial data on the mechanisms involved. We therefore summarize (recent) literature in this area and describe galectin-3 from a binding perspective providing novel insights into mechanisms by which galectin-3 is known to be "activated" and how such activation may be regulated in pathophysiological scenarios. PMID- 29344295 TI - Peptide receptor radionuclide therapy as a new tool in treatment-refractory sarcoidosis - initial experience in two patients. AB - Sarcoidosis is a multisystem granulomatous disorder of unknown etiology that can involve virtually all organ systems. Whereas most patients present without symptoms, progressive and disabling organ failure can occur in up to 10% of subjects. Somatostatin receptor (SSTR)-directed peptide receptor radionuclide therapy (PRRT) has recently received market authorization for treatment of SSTR positive neuroendocrine tumors. Methods: We describe the first case series comprising two patients with refractory multi-organ involvement of sarcoidosis who received 4 cycles of PRRT. Results: PRRT was well-tolerated without any acute adverse effects. No relevant toxicities could be recorded during follow-up. Therapy resulted in partial response accompanied by a pronounced reduction in pain (patient #1) and stable disease regarding morphology as well as disease activity (patient #2), respectively. Conclusion: Peptide receptor radionuclide therapy in sarcoidosis is feasible and might be a new valuable tool in patients with otherwise treatment-refractory disease. Given the long experience with and good tolerability of PRRT, further evaluation of this new treatment option for otherwise treatment-refractory sarcoidosis in larger patient cohorts is warranted. PMID- 29344294 TI - Cardiomyocyte-Restricted Low Density Lipoprotein Receptor-Related Protein 6 (LRP6) Deletion Leads to Lethal Dilated Cardiomyopathy Partly Through Drp1 Signaling. AB - Low density lipoprotein receptor-related protein 6 (LRP6), a wnt co-receptor, regulates multiple functions in various organs. However, the roles of LRP6 in the adult heart are not well understood. Methods: We observed LRP6 expression in heart with end-stage dilated cardiomyopathy (DCM) by western blot. Tamoxifen inducible cardiac-specific LRP6 knockout mouse was constructed. Hemodynamic and echocardiographic analyses were performed to these mice. Results: Cardiac LRP6 expression was dramatically decreased in patients with end-stage dilated cardiomyopathy (DCM) compared to control group. Tamoxifen-inducible cardiac specific LRP6 knockout mice developed acute heart failure and mitochondrial dysfunction with reduced survival. Proteomic analysis suggests the fatty acid metabolism disorder involving peroxisome proliferator-activated receptors (PPARs) signaling in the LRP6 deficient heart. Accumulation of mitochondrial targeting to autophagosomes and lipid droplet were observed in LRP6 deletion hearts. Further analysis revealed cardiac LRP6 deletion suppressed autophagic degradation and fatty acid utilization, coinciding with activation of dynamin-related protein 1 (Drp1) and downregulation of nuclear TFEB (Transcription factor EB). Injection of Mdivi-1, a Drp1 inhibitor, not only promoted nuclear translocation of TFEB, but also partially rescued autophagic degradation, improved PPARs signaling, and attenuated cardiac dysfunction induced by cardiac specific LRP6 deletion. Conclusions: Cardiac LRP6 deficiency greatly suppressed autophagic degradation and fatty acid utilization, and subsequently leads to lethal dilated cardiomyopathy and cardiac dysfunction through activation of Drp1 signaling. It suggests that heart failure progression may be attenuated by therapeutic modulation of LRP6 expression. PMID- 29344296 TI - CDK16 Phosphorylates and Degrades p53 to Promote Radioresistance and Predicts Prognosis in Lung Cancer. AB - Rationale: Radioresistance is considered the main cause of local relapse in lung cancer. However, the molecular mechanisms of radioresistance remain poorly understood. This study investigates the role of CDK16 in radioresistance of human lung cancer cells. Methods: The expression levels of CDK16 were determined by immunohistochemistry in lung cancer tissues and adjacent normal lung tissues. Immunoprecipitation assay and GST pulldown were utilized to detect the protein protein interaction. The phosphorylation of p53 was evaluated by in vitro kinase assay. Poly-ubiquitination of p53 was examined by in vivo ubiquitination assay. Cell growth and apoptosis, ROS levels and DNA damage response were measured for functional analyses. Results: We showed that CDK16 is frequently overexpressed in lung cancer cells and tissues, and high levels of CDK16 are correlated with lymph node stage and poor prognosis in lung cancer patients. Furthermore, we provided evidence that CDK16 binds to and phosphorylates p53 at Ser315 site to inhibit transcriptional activity of p53. Moreover, we uncovered that this phosphorylation modification accelerates p53 degradation via the ubiquitin/proteasome pathway. Importantly, we demonstrated that CDK16 promotes radioresistance by suppressing apoptosis and ROS production as well as inhibiting DNA damage response in lung cancer cells in a p53-dependent manner. Conclusion: Our findings suggest that CDK16 negatively modulates p53 signaling pathway to promote radioresistance, and therefore represents a promising therapeutic target for lung cancer radiotherapy. PMID- 29344297 TI - Mesoporous Carbon Nanospheres as a Multifunctional Carrier for Cancer Theranostics. AB - Optical nanomaterials with intense absorption in near-infrared (NIR) region hold great promise for biomedical applications such as photothermal therapy (PTT) and photoacoustic imaging (PAI). In this work, we report mesoporous carbon nanospheres (Meso-CNs) with broadband and intense absorption in the UV-Vis-NIR region (300-1400 nm) and explore their potential as a multifunctional platform for photoacoustic imaging and chemo-photothermal therapy. Methods: Meso-CNs were prepared by a "silica-assisted" synthesis strategy and characterized by transmission electron microscope and optical spectroscopy. We investigated the photothermal conversion and photoacoustic imaging of Meso-CNs in comparison with single-walled carbon nanotubes (SWCNTs), graphene and gold nanorods (GNRs). In vitro cellular assays and in vivo chemo-photothermal combination therapy were performed. Results: The absorption coefficients of Meso-CNs are 1.5-2 times higher than those of SWCNTs and graphene and are comparable to those of GNRs in both the first and the second near-infrared optical windows (NIR-I and NIR-II) of tissues. When exposed to an NIR laser, the photothermal and photoacoustic signal generation of Meso-CNs are also stronger than those of SWCNTs, graphene, and GNRs. DOX was loaded into Meso-CNs with a high efficiency (35 wt%) owing to the unique mesoporous structure. Particularly, the drug release from Meso-CNs is sensitive to both pH and NIR light stimulation. In vivo chemo-photothermal combination therapy demonstrates a remarkable inhibition effect on tumor growth under NIR laser treatment. Conclusions: We have developed Meso-CNs for photothermal conversion and photoacoustic imaging. The porous structure also serves as a drug carrier and the drug release can be controlled by pH and external light. The high drug loading capacity, superior photothermal and photoacoustic generation, together with the apparent chemo-photothermal therapeutic effect, make Meso-CNs a promising platform for cancer theranostics. PMID- 29344298 TI - AKR1C1 Activates STAT3 to Promote the Metastasis of Non-Small Cell Lung Cancer. AB - Metastasis is the leading cause of mortality for human non-small cell lung cancer (NSCLC). However, it is difficult to target tumor metastasis because the molecular mechanisms underlying NSCLC invasion and migration remain unclear. Methods: GEO data analyses and IHC analyses were performed to identify that the expression level of AKR1C1, a member of human aldo-keto reductase family, was highly elevated in patients with metastasis or metastatic foci of NSCLC patients. Functional analyses (in vitro and in vivo) and quantitative genomic analyses were preformed to confirm the pro-metastatic effects of AKR1C1 and the underlying mechanisms. The correlation of AKR1C1 with the prognosis of NSCLC patients was evaluated using Kaplan-Meier analyses. Results: in NSCLC patients, AKR1C1 expression was closely correlated with the metastatic potential of tumors. AKR1C1 overexpression in nonmetastatic cancer cells significantly promoted metastasis both in vitro and in vivo, whereas depletion of AKR1C1 in highly metastatic tumors potently alleviated these effects. Quantitative genomic and functional analyses revealed that AKR1C1 directly interacted with STAT3 and facilitated its phosphorylation-thus reinforcing the binding of STAT3 to the promoter regions of target genes-and then transactivated these genes, which ultimately promoted tumor metastasis. Further studies showed that AKR1C1 might facilitate the interaction of STAT3 with its upstream kinase JAK2. Intriguingly, AKR1C1 exerted these pro metastatic effects in a catalytic-independent manner. In addition, a significant correlation between AKR1C1 and STAT3 pathway was observed in the metastatic foci of NSCLC patients, and the AKR1C1-STAT3 levels were highly correlated with a poor prognosis in NSCLC patients. Conclusions: taken together, we show that AKR1C1 is a potent inducer of NSCLC metastasis. Our study uncovers the active function of AKR1C1 as a key component of the STAT3 pathway, which promotes lung cancer metastasis, and highlights a candidate therapeutic target to potentially improve the survival of NSCLC patients with metastatic disease. PMID- 29344299 TI - Enhanced Synergism of Thermo-chemotherapy For Liver Cancer with Magnetothermally Responsive Nanocarriers. AB - A combination of magnetic hyperthermia and magnetothermally-facilitated drug release system was developed as a promising strategy for liver cancer therapy. The thermosensitive copolymer, 6sPCL-b-P(MEO2MA-co-OEGMA) shows a good temperature-controlled drug release response. Mn-Zn ferrite magnetic nanoparticles (MZF-MNPs) exhibit a strong magnetic thermal effect with an alternating magnetic field (AMF). Owing to its high magnetic sensitivity, the magnetothermally-responsive nanocarrier/doxorubicin (MTRN/DOX) can be concentrated in the tumor site efficiently through magnetic targeting. Given this information, we synthesized MTRN/DOX which was composed of MZF-MNPs, thermosensitive copolymer drug carriers, and the chemotherapeutic drug---DOX, to study its anticancer effects both in vitro and in vivo.METHODS: MTRN/DOX was designed and prepared. Firstly, we investigated the accumulation effects of MTRN/DOX by Prussian blue staining, transmission electron microscopy (TEM), laser scanning confocal microscopy (LSCM) and conducted 7.0 T MRI. Following this, the magnetothermal effects of MTRN/DOX were studied using an infrared thermal camera. DOX uptake, distribution, and retention in tumor cells and the distribution of MTRN/DOX in vivo were then analyzed via LSCM, flow cytometry and live fluorescence imaging. Lastly, its anticancer effects were evaluated by MTT, AM/PI staining, Annexin-VFITC/PI staining and comparison of relative tumor volume. RESULTS: We found that MTRN/DOX can be efficiently concentrated in the tumor site through magnetic targeting, increasing the uptake of DOX by tumor cells, and prolonging the retention time of the drug within the tumors. MTRN/DOX showed good magnetothermal effects both in vitro and in vivo. Based on the above results, MTRN/DOX had significant anticancer effects. CONCLUSIONS: MTRN/DOX causes temporal-spatial synchronism of thermo-chemotherapy and together with chemotherapeutic drugs, produces a synergistic effect, which enhances the sensitivity of tumor cells to DOX and reduces their side effects. PMID- 29344300 TI - General Anesthesia Inhibits the Activity of the "Glymphatic System". AB - INTRODUCTION: According to the "glymphatic system" hypothesis, brain waste clearance is mediated by a continuous replacement of the interstitial milieu by a bulk flow of cerebrospinal fluid (CSF). Previous reports suggested that this cerebral CSF circulation is only active during general anesthesia or sleep, an effect mediated by the dilatation of the extracellular space. Given the controversies regarding the plausibility of this phenomenon and the limitations of currently available methods to image the glymphatic system, we developed original whole-brain in vivo imaging methods to investigate the effects of general anesthesia on the brain CSF circulation. METHODS: We used magnetic resonance imaging (MRI) and near-infrared fluorescence imaging (NIRF) after injection of a paramagnetic contrast agent or a fluorescent dye in the cisterna magna, in order to investigate the impact of general anesthesia (isoflurane, ketamine or ketamine/xylazine) on the intracranial CSF circulation in mice. RESULTS:In vivo imaging allowed us to image CSF flow in awake and anesthetized mice and confirmed the existence of a brain-wide CSF circulation. Contrary to what was initially thought, we demonstrated that the parenchymal CSF circulation is mainly active during wakefulness and significantly impaired during general anesthesia. This effect was especially significant when high doses of anesthetic agent were used (3% isoflurane). These results were consistent across the different anesthesia regimens and imaging modalities. Moreover, we failed to detect a significant change in the brain extracellular water volume using diffusion weighted imaging in awake and anesthetized mice. CONCLUSION: The parenchymal diffusion of small molecular weight compounds from the CSF is active during wakefulness. General anesthesia has a negative impact on the intracranial CSF circulation, especially when using a high dose of anesthetic agent. PMID- 29344301 TI - WST11 Vascular Targeted Photodynamic Therapy Effect Monitoring by Multispectral Optoacoustic Tomography (MSOT) in Mice. AB - Objective: Monitoring emerging vascular-targeted photodynamic therapy (VTP) and understanding the time-dynamics of treatment effects remains challenging. We interrogated whether handheld multispectral optoacoustic tomography (MSOT) could noninvasively monitor the effect of VTP using WST11, a vascular-acting photosensitizer, on tumor tissues over time using a renal cell cancer mouse model. We also investigated whether MSOT illumination can induce VTP, to implement a single-modality theranostic approach. Materials and Methods: Eight BalB/c mice were subcutaneously implanted with murine renal adenocarcinoma cells (RENCA) on the flank. Three weeks later VTP was performed (10 min continuous illumination at 753 nm following intravenous infusion using WST11 or saline as control. Handheld MSOT images were collected prior to VTP administration and subsequently thereafter over the course of the first hour, at 24 and 48 h. Data collected were unmixed for blood oxygen saturation in tissue (SO2) based on the spectral signatures of deoxy- and oxygenated hemoglobin. Changes in oxygen saturation over time, relative to baseline, were examined by paired t-test for statistical significance (p < 0.05). In-vivo findings were corroborated by histological analyses of the tumor tissue. Results: MSOT is shown to prominently resolve changes in oxygen saturation in tumors within the first 20 min post WST11 VTP treatment. Within the first hour post-treatment, SO2 decreased by more than 60% over baseline (p < 0.05), whereas it remained unchanged (p > 0.1) in the sham treated group. Moreover, unlike in the control group, SO2 in treated tumors further decreased over the course of 24 to 48 h post-treatment, concomitant with the propagation of profound central tumor necrosis present in histological analysis. We further show that pulsed MSOT illumination can activate WST11 as efficiently as the continuous wave irradiation employed for treatment. Conclusion: Handheld MSOT non-invasively monitored WST11-VTP effects based on the SO2 signal and detected blood saturation changes within the first 20 min post treatment. MSOT may potentially serve as a means for both VTP induction and real time VTP monitoring in a theranostic approach. PMID- 29344302 TI - Evans Blue Attachment Enhances Somatostatin Receptor Subtype-2 Imaging and Radiotherapy. AB - Purpose: Radionuclide therapy directed against tumors that express somatostatin receptors (SSTRs) has proven effective for the treatment of advanced, low- to intermediate-grade neuroendocrine tumors in the clinic. In clinical usage, somatostatin peptide-based analogs, labeled with therapeutic radionuclides, provide an overall response rate of about 30%, despite the high cumulative activity injected per patient. We set out to improve the effectiveness of somatostatin radiotherapy by preparing a chemical analog that would clear more slowly through the urinary tract and, concomitantly, have increased blood circulation half-life and higher targeted accumulation in the tumors. Experimental Design: We conjugated a common, clinically-used SST peptide derivative, DOTA-octreotate, to an Evans blue analog (EB), which reversibly binds to circulating serum albumin. The resulting molecule was used to chelate 86Y and 90Y, a diagnostic and a therapeutic radionuclide, respectively. The imaging capabilities and the radiotherapeutic efficacy of the resulting radioligand was evaluated in HCT116/SSTR2, HCT116, and AR42J cell lines that express differing levels of SST2 receptors. Results: The synthesized radiopharmaceutical retained affinity and specificity to SSTR2. The new molecule also retained the high internalization rate of DOTA-octreotate, and therefore, showed significantly higher accumulation in SSTR2-positive tumors. Labeling of our novel EB-octreotate derivative with the therapeutic, pure beta emitter, 90Y, resulted in improved tumor response and survival rates of mice bearing SSTR2 xenografts and had long term efficacy when compared to DOTA-octreotate itself. Conclusions: The coupling of a targeted peptide, a therapeutic radionuclide, and the EB-based albumin binding provides for effective treatment of SSTR2-containing tumors. PMID- 29344303 TI - Erratum: Improvement of Prostate Cancer Diagnosis by Detecting PSA Glycosylation Specific Changes: Erratum. AB - [This corrects the article DOI: 10.7150/thno.15226.]. PMID- 29344304 TI - Atherosclerosis is exacerbated by chitinase-3-like-1 in amyloid precursor protein transgenic mice. AB - Although the important role of amyloid precursor protein (APP) in vascular diseases associated with Alzheimer's disease (AD) has been demonstrated, the underlying molecular mechanisms and physiological consequences are unclear. We aimed to evaluate vascular inflammation and atherosclerosis in Swedish mutant of human APP transgenic (APPsw-Tg) and ApoE-/-/APPsw-Tg mice. We also aimed to explore the mechanisms underlying any changes observed in these mice compared with non-Tg controls. Methods: The transgenic and non-Tg mouse strains were subjected to partial ligation of the left carotid artery to induce atherosclerotic changes, which were measured using histological approaches, immunohistochemistry, quantitative polymerase chain reaction, and gene expression microarrays. Results: Our results showed increased vascular inflammation, arterial wall thickness, and atherosclerosis in APPsw-Tg and ApoE-/-/APPsw-Tg mice. We further found that the expression of chitinase-3-like-1 (Chi3l1) is increased in the APPsw-Tg mouse artery and Chi3l1 mediates endothelial cell (EC) inflammation and vascular smooth muscle cell (VSMC) activation, which in turn exacerbates atherosclerosis. In addition, using two publicly available microarray datasets from the dorsolateral prefrontal cortex of people with AD and unaffected controls as well as inflamed human umbilical vein endothelial cells, we found that Chi3l1 and associated inflammatory gene were significantly associated with AD, evaluated by co-expression network analysis and functional annotation. Knockdown of Chi3l1 in the arterial endothelium in vivo suppressed the development of atherosclerosis. We also show that microRNA 342-3p (miR-342-3p) inhibits EC inflammation and VSMC activation through directly targeting Chi3l1, and that APPsw increased Chi3l1 expression by reducing miR-342-3p expression in the arterial endothelium, promoting atherosclerosis. Conclusion: Our findings suggest that targeting Chi3l1 might provide new diagnostic and therapeutic strategies for vascular diseases in patients with AD. PMID- 29344305 TI - A Tumor-Activatable Theranostic Nanomedicine Platform for NIR Fluorescence-Guided Surgery and Combinatorial Phototherapy. AB - Fluorescence image-guided surgery combined with intraoperative therapeutic modalities has great potential for intraoperative detection of oncologic targets and eradication of unresectable cancer residues. Therefore, we have developed an activatable theranostic nanoplatform that can be used concurrently for two purposes: (1) tumor delineation with real-time near infrared (NIR) fluorescence signal during surgery, and (2) intraoperative targeted treatment to further eliminate unresected disease sites by non-toxic phototherapy. Methods: The developed nanoplatform is based on a single agent, silicon naphthalocyanine (SiNc), encapsulated in biodegradable PEG-PCL (poly (ethylene glycol)-b-poly(E caprolactone)) nanoparticles. It is engineered to be non-fluorescent initially via dense SiNc packing within the nanoparticle's hydrophobic core, with NIR fluorescence activation after accumulation at the tumor site. The activatable nanoplatform was evaluated in vitro and in two different murine cancer models, including an ovarian intraperitoneal metastasis-mimicking model. Furthermore, fluorescence image-guided surgery mediated by this nanoplatform was performed on the employed animal models using a Fluobeam(r) 800 imaging system. Finally, the phototherapeutic efficacy of the developed nanoplatform was demonstrated in vivo. Results: Our in vitro data suggest that the intracellular environment of cancer cells is capable of compromising the integrity of self-assembled nanoparticles and thus causes disruption of the tight dye packing inside the hydrophobic cores and activation of the NIR fluorescence. Animal studies demonstrated accumulation of activatable nanoparticles at the tumor site following systemic administration, as well as release and fluorescence recovery of SiNc from the polymeric carrier. It was also validated that the developed nanoparticles are compatible with the intraoperative imaging system Fluobeam(r) 800, and nanoparticle-mediated image guided surgery provides successful resection of cancer tumors. Finally, in vivo studies revealed that combinatorial phototherapy mediated by the nanoparticles could efficiently eradicate chemoresistant ovarian cancer tumors. Conclusion: The revealed properties of the activatable nanoplatform make it highly promising for further application in clinical image-guided surgery and combined phototherapy, facilitating a potential translation to clinical studies. PMID- 29344306 TI - 131I-Labeled Copper Sulfide-Loaded Microspheres to Treat Hepatic Tumors via Hepatic Artery Embolization. AB - Purpose: Transcatheter hepatic artery embolization therapy is a minimally invasive alternative for treating inoperable liver cancer but recurrence is frequent. Multifunctional agents, however, offer an opportunity for tumor eradication. In this study, we were aim to synthesized poly (lactic-co-glycolic acid) (PLGA) microspheres encapsulating hollow CuS nanoparticles (HCuSNPs) and paclitaxel (PTX) that were then labeled with radioiodine-131 (131I) to produce 131I-HCuSNPs-MS-PTX. This compound combines the multi-theranostic properties of chemotherapy, radiotherapy and photothermal therapy. In addition, it can also be imaged with single photon emission computed tomography (SPECT) imaging and photoacoustic imaging. Methods: We investigated the value of therapeutic and imaging of 131I-HCuSNPs-MS-PTX in rats bearing Walker-256 tumor transplanted in the liver. After the intra-arterial (IA) injection of 131I-HCuSNPs-MS-PTX, 18F Fluorodeoxyglucose (18F-FDG) micro-positron emission tomography/computed tomography (micro-PET/CT) imaging was used to monitor the therapeutic effect. PET/CT findings were verified by immunohistochemical analysis. SPECT/CT and photoacoustic imaging were performed to demonstrate the distribution of 131I HCuSNPs-MS-PTX in vivo. Results: We found that embolization therapy in combination with chemotherapy, radiotherapy and photothermal therapy offered by 131I-HCuSNPs-MS-PTX completely ablated the transplanted hepatic tumors at a relatively low dose. In comparison, embolization monotherapy or combination with one or two other therapies had less effective anti-tumor efficacy. The combination of SPECT/CT and photoacoustic imaging effectively confirmed microsphere delivery to the targeted tumors in vivo and guided the near-infrared laser irradiation. Conclusion: Our study suggests that there is a clinical theranostic potential for imaging-guided arterial embolization with 131I-HCuSNPs MS-PTX for the treatment of liver tumors. PMID- 29344307 TI - Dual turn-on fluorescence signal-based controlled release system for real-time monitoring of drug release dynamics in living cells and tumor tissues. AB - Controlled release systems with capabilities for direct and real-time monitoring of the release and dynamics of drugs in living systems are of great value for cancer chemotherapy. Herein, we describe a novel dual turn-on fluorescence signal based controlled release system (CDox), in which the chemotherapy drug doxorubicin (Dox) and the fluorescent dye (CH) are conjugated by a hydrazone moiety, a pH-responsive cleavable linker. CDox itself shows nearly no fluorescence as the fluorescence of CH and Dox is essentially quenched by the C=N isomerization and N-N free rotation. However, when activated under acidic conditions, CDox could be hydrolyzed to afford Dox and CH, resulting in dual turn on signals with emission peaks at 595 nm and 488 nm, respectively. Notably, CDox exhibits a desirable controlled release feature as the hydrolysis rate is limited by the steric hindrance effect from both the Dox and CH moieties. Cytotoxicity assays indicate that CDox shows much lower cytotoxicity relative to Dox, and displays higher cell inhibition rate to cancer than normal cells. With the aid of the dual turn-on fluorescence at different wavelengths, the drug release dynamics of CDox in living HepG2 and 4T-1 cells was monitored in double channels in a real time fashion. Importantly, two-photon fluorescence imaging of CDox in living tumor tissues was also successfully performed by high-definition 3D imaging. We expect that the unique controlled release system illustrated herein could provide a powerful means to investigate modes of action of drugs, which is critical for development of much more robust and effective chemotherapy drugs. PMID- 29344308 TI - "Albumin Hitchhiking" with an Evans Blue Analog for Cancer Theranostics. AB - Although 177Lu-DOTA-TATE was recently approved in Europe for the treatment of certain neuroendocrine tumors, continued development and optimization has been ongoing to further improve the therapeutic efficacy of somatostatin receptor 2 targeted peptide receptor radionuclide therapy, as well as reducing the renal toxicity. In this work, the use of an Evans blue analog for "albumin hitchhiking" resulted in significant improvement in both the imaging performance and therapeutic efficacy of radiolabeled octreotate, as well as reducing the toxicity since much less radioactivity was used for therapy. Upon clinical translation, such "albumin hitchhiking" could make significant impact in the near future for cancer patient management. PMID- 29344310 TI - Drug Repurposing Screening Identifies Tioconazole as an ATG4 Inhibitor that Suppresses Autophagy and Sensitizes Cancer Cells to Chemotherapy. AB - Background: Tumor cells require proficient autophagy to meet high metabolic demands and resist chemotherapy, which suggests that reducing autophagic flux might be an attractive route for cancer therapy. However, this theory in clinical cancer research remains controversial due to the limited number of drugs that specifically inhibit autophagy-related (ATG) proteins. Methods: We screened FDA approved drugs using a novel platform that integrates computational docking and simulations as well as biochemical and cellular reporter assays to identify potential drugs that inhibit autophagy-required cysteine proteases of the ATG4 family. The effects of ATG4 inhibitors on autophagy and tumor suppression were examined using cell culture and a tumor xenograft mouse model. Results: Tioconazole was found to inhibit activities of ATG4A and ATG4B with an IC50 of 1.3 uM and 1.8 uM, respectively. Further studies based on docking and molecular dynamics (MD) simulations supported that tioconazole can stably occupy the active site of ATG4 in its open form and transiently interact with the allosteric regulation site in LC3, which explained the experimentally observed obstruction of substrate binding and reduced autophagic flux in cells in the presence of tioconazole. Moreover, tioconazole diminished tumor cell viability and sensitized cancer cells to autophagy-inducing conditions, including starvation and treatment with chemotherapeutic agents. Conclusion: Tioconazole inhibited ATG4 and autophagy to enhance chemotherapeutic drug-induced cytotoxicity in cancer cell culture and tumor xenografts. These results suggest that the antifungal drug tioconazole might be repositioned as an anticancer drug or chemosensitizer. PMID- 29344311 TI - Gilz-Activin A as a Novel Signaling Axis Orchestrating Mesenchymal Stem Cell and Th17 Cell Interplay. AB - Mesenchymal stem cells (MSC) are highly immunosuppressive cells able to reduce chronic inflammation through the active release of mediators. Recently, we showed that glucocorticoid-induced leucine zipper (Gilz) expression by MSC is involved in their therapeutic effect by promoting the generation of regulatory T cells. However, the mechanisms underlying this pivotal role of Gilz remain elusive. Methods and Results In this study, we have uncovered evidence that Gilz modulates the phenotype and function of Th1 and Th17 cells likely by upregulating the level of Activin A and NO2 secreted by MSC. Adoptive transfer experiments sustained this Gilz-dependent suppressive effect of MSC on Th1 and Th17 cell functions. In immunoregulatory MSC, obtained by priming with IFN-gamma and TNF-alpha, Gilz was translocated to the nucleus and bound to the promoters of inos and Activin betaA to induce their expression. The increased expression of Activin A directly impacted on Th17 cells fate by repressing their differentiation program through the activation of Smad3/2 and enhancing IL-10 production. Conclusion Our results reveal how Gilz controls inos and Activin betaA gene expression to ultimately assign immunoregulatory status to MSC able to repress the pathogenic Th17 cell differentiation program and uncover Activin A as a novel mediator of MSC in this process. PMID- 29344309 TI - Adult Stem Cells in Vascular Remodeling. AB - Understanding the contribution of vascular cells to blood vessel remodeling is critical for the development of new therapeutic approaches to cure cardiovascular diseases (CVDs) and regenerate blood vessels. Recent findings suggest that neointimal formation and atherosclerotic lesions involve not only inflammatory cells, endothelial cells, and smooth muscle cells, but also several types of stem cells or progenitors in arterial walls and the circulation. Some of these stem cells also participate in the remodeling of vascular grafts, microvessel regeneration, and formation of fibrotic tissue around biomaterial implants. Here we review the recent findings on how adult stem cells participate in CVD development and regeneration as well as the current state of clinical trials in the field, which may lead to new approaches for cardiovascular therapies and tissue engineering. PMID- 29344312 TI - An Endogenous Vaccine Based on Fluorophores and Multivalent Immunoadjuvants Regulates Tumor Micro-Environment for Synergistic Photothermal and Immunotherapy. AB - Recently, near-infrared (NIR) light-based photothermal therapy (PTT) has been widely applied in cancer treatment. However, in most cases, the tissue penetration depth of NIR light is not sufficient and thus photothermal therapy is unable to completely eradicate deep, seated tumors inevitably leading to recurrence of the tumor. Due to this significant limitation of NIR, improved therapeutic strategies are urgently needed. Methods: We developed an endogenous vaccine based on a novel nanoparticle platform for combinatorial photothermal ablation and immunotherapy. The design was based on fluorophore-loaded liposomes (IR-7-lipo) coated with a multivalent immunoadjuvant (HA-CpG). In vitro PTT potency was assessed in cells by LIVE/DEAD and Annexin V-FITC/PI assays. The effect on bone marrow-derived dendritic cells (BMDC) maturation and antigen presentation was evaluated by flow cytometry (FCM) with specific antibodies. After treatment, the immune cell populations in tumor micro-environment and the cytokines in the serum were detected by FCM and Elisa assay, respectively. Finally, the therapeutic outcome was investigated in an animal model. Results: Upon irradiation with 808 nm laser, IR-7-lipo induced tumor cell necrosis and released tumor-associated antigens, while the multivalent immunoadjuvant improved the expression of co-stimulatory molecules on BMDC and promoted antigen presentation. The combination therapy of PTT and immunotherapy regulated the tumor micro-environment, decreased immunosuppression, and potentiated host antitumor immunity. Most significantly, due to an enhanced antitumor immune response, combined photothermal immunotherapy was effective in eradicating tumors in mice and inhibiting tumor metastasis. Conclusion: This endogenous vaccination strategy based on synergistic photothermal and immunotherapy may provide a potentially effective approach for treatment of cancers, especially those difficult to be surgically removed. PMID- 29344313 TI - DNA methylation as a predictor of fetal alcohol spectrum disorder. AB - Background: Fetal alcohol spectrum disorder (FASD) is a developmental disorder that manifests through a range of cognitive, adaptive, physiological, and neurobiological deficits resulting from prenatal alcohol exposure. Although the North American prevalence is currently estimated at 2-5%, FASD has proven difficult to identify in the absence of the overt physical features characteristic of fetal alcohol syndrome. As interventions may have the greatest impact at an early age, accurate biomarkers are needed to identify children at risk for FASD. Building on our previous work identifying distinct DNA methylation patterns in children and adolescents with FASD, we have attempted to validate these associations in a different clinical cohort and to use our DNA methylation signature to develop a possible epigenetic predictor of FASD. Methods: Genome wide DNA methylation patterns were analyzed using the Illumina HumanMethylation450 array in the buccal epithelial cells of a cohort of 48 individuals aged 3.5-18 (24 FASD cases, 24 controls). The DNA methylation predictor of FASD was built using a stochastic gradient boosting model on our previously published dataset FASD cases and controls (GSE80261). The predictor was tested on the current dataset and an independent dataset of 48 autism spectrum disorder cases and 48 controls (GSE50759). Results: We validated findings from our previous study that identified a DNA methylation signature of FASD, replicating the altered DNA methylation levels of 161/648 CpGs in this independent cohort, which may represent a robust signature of FASD in the epigenome. We also generated a predictive model of FASD using machine learning in a subset of our previously published cohort of 179 samples (83 FASD cases, 96 controls), which was tested in this novel cohort of 48 samples and resulted in a moderately accurate predictor of FASD status. Upon testing the algorithm in an independent cohort of individuals with autism spectrum disorder, we did not detect any bias towards autism, sex, age, or ethnicity. Conclusion: These findings further support the association of FASD with distinct DNA methylation patterns, while providing a possible entry point towards the development of epigenetic biomarkers of FASD. PMID- 29344315 TI - A Topical Anti-inflammatory Healing Regimen Utilizing Conjugated Linolenic Acid for Use Post-ablative Laser Resurfacing of the Face: A Randomized, Controlled Trial. AB - Background: Fractionated, ablative lasers are usually associated with post treatment erythema, edema, and crusting, which can last from 5 to 14 days. Conjugated linolenic acid, an omega-5 fatty acid, has significant antioxidant and anti-inflammatory properties, and has been shown to stimulate keratinocyte proliferation and epidermal regeneration. By modulating the early inflammatory milieu and directly affecting skin structure and function, conjugated linolenic acid might therefore shorten downtime following fractionated ablative laser resurfacing of the face. Objective: To evaluate the efficacy and subject satisfaction of a topical regimen containing conjugated linolenic acid derived from pomegranate seed extract in accelerating wound healing and improving skin quality following fractionated ablative laser resurfacing of the face. Materials and Methods: Thirty-four subjects were enrolled and received fractionated CO2 laser resurfacing. Subjects were randomized to use the test healing regimen (n=24) or 1% dimethicone ointment (n=10) post-procedure. The primary endpoint was the degree of erythema, edema, crusting, and exudation evaluated by a blinded clinician at post-treatment Days 1,3,7,10, 14, and 30. Secondary endpoints included a blinded evaluator assessment of the degree of wrinkling and elastosis using the Fitzpatrick-Goldman Wrinkle and Elastosis Scale; subject-assessed degree of pain, itching, tightness, oozing, and crusting; and subject overall satisfaction. Results: Subjects who applied the topical conjugated linolenic acid healing regimen experienced significantly reduced edema on post-procedure Day 3 (p=0.04), and itching on Days 1 and 3 (p=0.03 and p=0.04). Both regimens produced significant improvements in wrinkling and elastosis at Days 14 and 30 post treatment, with conjugated linolenic acid outperforming placebo in improvements in wrinkling at Day 14. Both regimens were well tolerated with no statistical differences in adverse events or subject satisfaction. Conclusion: The topical conjugated linolenic acid formulation outperformed placebo by decreasing acute pruritus and edema, and enabling a faster positive outcome in wrinkle improvement. Additionally, topical conjugated linolenic acid does not raise any safety or tolerability issues as compared to current standard of care. PMID- 29344314 TI - Aberrant expression and DNA methylation of lipid metabolism genes in PCOS: a new insight into its pathogenesis. AB - Background: Polycystic ovary syndrome (PCOS), whose etiology remains uncertain, is a highly heterogenous and genetically complex endocrine disorder. The aim of this study was to identify differentially expressed genes (DEGs) in granulosa cells (GCs) from PCOS patients and make epigenetic insights into the pathogenesis of PCOS. Results: Included in this study were 110 women with PCOS and 119 women with normal ovulatory cycles undergoing in vitro fertilization acting as the control group. RNA-seq identified 92 DEGs unique to PCOS GCs in comparison with the control group. Bioinformatic analysis indicated that synthesis of lipids and steroids was activated in PCOS GCs. 5-Methylcytosine analysis demonstrated that there was an approximate 25% reduction in global DNA methylation of GCs in PCOS women (4.44 +/- 0.65%) compared with the controls (6.07 +/- 0.72%; P < 0.05). Using MassArray EpiTYPER quantitative DNA methylation analysis, we also found hypomethylation of several gene promoters related to lipid and steroid synthesis, which might result in the aberrant expression of these genes. Conclusions: Our results suggest that hypomethylated genes related to the synthesis of lipid and steroid may dysregulate expression of these genes and promote synthesis of steroid hormones including androgen, which could partially explain mechanisms of hyperandrogenism in PCOS. PMID- 29344317 TI - Survey of Dermatologists and Venereologists Shows Varying Approach to Penile Biopsies. AB - OBJECTIVE: To determine frequency of use and safety of epinephrine containing local anesthesia among dermatologists in the United Kingdom and venereologists undertaking penile biopsy. DESIGN: A survey was distributed nationally to members of the British Association of Dermatologists and the British Association for Sexual Health and Human Immunodeficiency Virus in December 2016. RESULTS: Sixty six responses were received: 36.4 percent of respondents used epinephrine routinely, 16.7 percent sometimes used it, and 47 percent did not use it at all. Epinephrine use was more commonly by dermatologists in either some or all cases (56.8%) compared with venereologists (40%). Only two complications were reported to epinephrine use. Both were temporary without report of necrosis. CONCLUSION: Use of epinephrine-containing local anesthesia is common among physicians in the United Kingdom undertaking penile biopsies. Despite this, no episodes of necrosis were observed. While further investigation is still required, it is likely that use of epinephrine-containing local anesthesia is safe for local penile injection. PMID- 29344316 TI - Clinical, Biochemical, and Hormonal Associations in Female Patients with Acne: A Study and Literature Review. AB - Female acne is often associated with clinical signs of hyperandrogenism or metabolic syndrome. Various hormonal and biochemical factors as well as Vitamin D deficiency play a role in the etiopathogenesis of acne, and it is important to be able to detect the altered marker(s) indicative of certain abnormalities in order to diagnose and treat the cause. However, interpretation of these markers can be difficult, as there is ambiguity as to what is considered "normal" or "abnormal." The aim of this study was to explore the associations that acne might have with certain clinical, hormonal, and biological factors among female patients with acne. Additionally, the available literature was reviewed in order to determine the prevalence of these associations, discussion of which is provided. The author's investigations reveal a very high prevalence of abnormal metabolic and hormonal statuses among women with acne, indicating the need for dermatologists to maintain a high index of suspician for other disorders, especially metabolic disorders (and in particular, polycystic ovary syndrome), when treating female patients with acne. PMID- 29344318 TI - Noninvasive Long-term Monitoring of Actinic Keratosis and Field Cancerization Following Treatment with Ingenol Mebutate Gel 0.015. AB - OBJECTIVE: To determine whether actinic keratosis and photodamaged perilesional areas (field cancerization) treated successfully with topical ingenol mebutate gel 0.015% remained clear one year later, and to treat actinic keratosis and perilesional skin not treated one year earlier. DESIGN: Single-center, single arm, open-label extension of an original clinical study completed one year earlier. SETTING: An outpatient clinic. PARTICIPANTS: Fifteen of the original 28 study patients enrolled in and who completed the extension phase. MEASUREMENTS: All treated and untreated lesions in the original study were evaluated clinically, dermoscopically, and with optical coherence tomography at Day 0 of the extension study. Previously untreated lesions were then treated with ingenol mebutate gel 0.015% for three days and reevaluated at Day 60. RESULTS: There was no significant increase in actinic keratoses over one year. The majority of actinic keratoses not treated in the original study were still present at the beginning of the extension study. Following treatment, 69 percent of these lesions cleared by Day 60 of the extension study, which was not significantly different from the 79 percent clearance observed in the original study. CONCLUSION: Ingenol mebutate 0.015% maintained clearance of lesions treated one year earlier. Optical coherence therapy demonstrated its reliability as a noninvasive mode of diagnosis for actinic keratosis as well as actinic damage in the surrounding areas of field cancerization. Optical coherence therapy also showed that previously untreated lesions exhibited similar clearance rates once treated with the medication. PMID- 29344319 TI - Sandalwood Album Oil as a Botanical Therapeutic in Dermatology. AB - Many skin conditions and diseases are characterized by inflammation, infection, and hyperplasia. Safe and effective topical treatment options that can be used long-term are needed. Traditional botanical medicines, which are often complex mixtures that exert their biological activities via multiple mechanisms of action, are being studied as potential new active ingredients in dermatology. Sandalwood album oil (SAO), also known as East Indian sandalwood oil (EISO), is an essential oil distilled from the Santalum album tree and has demonstrated biological activity as an anti-inflammatory, anti-microbial, and anti proliferative agent. Sandalwood album oil has also shown promise in clinical trials for treatment of acne, psoriasis, eczema, common warts, and molluscum contagiosum. The favorable safety profile, ease of topical use, and recent availability of pharmaceutical-grade sandalwood album oil support its broader use as the basis of novel therapies in dermatology. PMID- 29344320 TI - Pyoderma Gangrenosum-associated Granulomatosis with Polyangitis: A Case Report and Literature Review. AB - Granulomatosis with polyangitis, formerly known as Wegener's granulomatosis, is a multi-system vasculitis that has a variable clinical presentation. Although uncommon, cutaneous symptoms can be the initial presenting symptom of granulomatosis with polyangitis. We present an unusual case of pyoderma gangrenosum followed by a diagnosis of granulomatosis with polyangitis. We also provide a review of current literature on therapeutic options. PMID- 29344321 TI - Fixed Drug Eruption to Supplement Containing Ginkgo Biloba and Vinpocetine: A Case Report and Review of Related Cutaneous Side Effects. AB - BACKGROUND: Fixed drug eruption is a cutaneous reaction to a systemic agent that typically presents as an annular or oval erythematous patch or blister and subsequently resolves with postinflammatory hyperpigmentation at the site. Ginkgo biloba leaf extract and vinpocetine are nutritional supplements used to enhance memory in patients with dementia and age-related memory impairment conditions such as Alzheimer's disease. PURPOSE: To describe a fixed drug eruption in a man who repeatedly developed pruritus and macular erythema on his distal penile shaft after ingesting a natural product containing Ginkgo biloba and vinpocetine. METHODS: The medical literature was retrospectively reviewed using PubMed, searching specifically for the terms cutaneous/skin adverse/side effects, fixed drug eruption, Ginkgo biloba, and vinpocetine. Patient reports and previous reviews of the subject were critically assessed, and the salient features of cutaneous adverse effects in patients receiving either Ginkgo biloba or vinpocetine are presented. RESULTS: Cutaneous adverse effects from Ginkgo biloba and vinpocetine are infrequent. Ginkgo biloba fruit can result in contact dermatitis (following topical exposure) and mucosal symptoms of the mouth and anus (following oral exposure); in addition, an erythematous maculopapular generalized eruption or possibly Steven-Johnson syndrome can occur after oral ingestion of the Ginkgo biloba leaf extract. Facial erythema has been associated with vinpocetine ingestion. Pruritus and an annular erythema localized to the distal penile shaft developed after initial and repeat ingestion of a Ginkgo biloba/vinpocetine product. CONCLUSION:Ginkgo biloba and vinpocetine should be added to the agents that can potentially cause a fixed drug eruption. PMID- 29344323 TI - The Impact of Quantitative Data Provided by a Multi-spectral Digital Skin Lesion Analysis Device on Dermatologists'Decisions to Biopsy Pigmented Lesions. AB - BACKGROUND: Early diagnosis of melanoma is critical to survival. New technologies, such as a multi-spectral digital skin lesion analysis (MSDSLA) device [MelaFind, STRATA Skin Sciences, Horsham, Pennsylvania] may be useful to enhance clinician evaluation of concerning pigmented skin lesions. Previous studies evaluated the effect of only the binary output. OBJECTIVE: The objective of this study was to determine how decisions dermatologists make regarding pigmented lesion biopsies are impacted by providing both the underlying classifier score (CS) and associated probability risk provided by multi-spectral digital skin lesion analysis. This outcome was also compared against the improvement reported with the provision of only the binary output. METHODS: Dermatologists attending an educational conference evaluated 50 pigmented lesions (25 melanomas and 25 benign lesions). Participants were asked if they would biopsy the lesion based on clinical images, and were asked this question again after being shown multi-spectral digital skin lesion analysis data that included the probability graphs and classifier score. RESULTS: Data were analyzed from a total of 160 United States board-certified dermatologists. Biopsy sensitivity for melanoma improved from 76 percent following clinical evaluation to 92 percent after quantitative multi-spectral digital skin lesion analysis information was provided (p<0.0001). Specificity improved from 52 percent to 79 percent (p<0.0001). The positive predictive value increased from 61 percent to 81 percent (p<0.01) when the quantitative data were provided. Negative predictive value also increased (68% vs. 91%, p<0.01), and overall biopsy accuracy was greater with multi-spectral digital skin lesion analysis (64% vs. 86%, p<0.001). Interrater reliability improved (intraclass correlation 0.466 before, 0.559 after). CONCLUSION: Incorporating the classifier score and probability data into physician evaluation of pigmented lesions led to both increased sensitivity and specificity, thereby resulting in more accurate biopsy decisions. PMID- 29344322 TI - Acne Scarring-Pathogenesis, Evaluation, and Treatment Options. AB - Acne vulgaris is a ubiquitous problem affecting 80 percent of people ages 11 to 30 years, with many patients experiencing some degree of scarring. This review focuses on atrophic scars, the most common type of acne scar. We briefly address the cellular sequelae that lead to scar formation and the initial evaluation of patients with acne scars. We then discuss an algorithmic approach to the treatment of acne scarring based on the classification of scars into erythematous and atrophic types. Lastly, we discuss the future treatment of acne scars and ongoing clinical trials. PMID- 29344324 TI - Treatment of Lateral Periorbital Lines with Different Dilutions of IncobotulinumtoxinA. AB - BACKGROUND: IncobotulinumtoxinA is a botulinum neurotoxin type A that is free from complexing proteins and is used in various therapeutic indications and aesthetic medicine. It is approved for the treatment of glabellar frown lines in the United States. In Europe, it is also approved for the treatment of lateral periorbital lines (crow's feet) and for the combined treatment of upper facial lines, including glabellar frown lines, crow's feet, and horizontal forehead lines. METHODS: In the present study, incobotulinumtoxinA was injected at two different dilutions to treat female subjects aged 40 to 50 years who had moderate to-severe lateral periorbital lines at maximum contraction according to a score of 2 or 3 points on the 5-point Merz Aesthetics Scales (MAS). For Group 1 (n=20), 50U of incobotulinumtoxinA were reconstituted with 1.60mL of 0.9% NaCI, and for Group 2 (n=20), a reconstitution volume of 0.55mL was used. RESULTS: Merz Aesthetics Scales scores were markedly improved by at least one point in both groups at one month and three months. The mean Merz Aesthetics Scales scores at one month were 0.4 and 0.6 points for Group 1 and Group 2, respectively, corresponding to a mean improvement of 2.0 and 1.8 points compared with baseline, respectively. CONCLUSION: No significant differences in efficacy and tolerability of incobotulinumtoxinA were seen between the two dilutions at any time point. PMID- 29344325 TI - Polycystic Ovarian Syndrome-associated Confluent and Reticulated Papillomatosis: Report of a Patient Successfully Treated with Azithromycin. AB - Polycystic ovarian syndrome is a common endocrine disorder with a variety of dermatologic manifestations among young women. Confluent and reticulated papillomatosis is a rare dermatosis of unknown etiology that is seldom reported in patients with polycystic ovarian syndrome. We describe the case of a young woman with obesity, confluent and reticulated papillomatosis, and concurrent acanthosis nigricans. Her history, physical examination, and laboratory evaluation led to the diagnosis of polycystic ovarian syndrome. The proposed etiologies and the various of treatment options for confluent and reticulated papillomatosis are discussed. In our case, the patient had a dramatic response to treatment with azithromycin. The etiology of confluent and reticulated papillomatosis remains to be established. Additionally, the mechanism behind the success of treatment with antibiotics is unclear; however, in this patient, azithromycin was a safe and effective option for the treatment of confluent and reticulated papillomatosis. PMID- 29344326 TI - Non-response to Interleukin-1 Antagonist Canakinumab in Two Patients with Refractory Pyoderma Gangrenosum and Hidradenitis Suppurativa. AB - Pyoderma gangrenosum and hidradenitis suppurativa are skin conditions characterized by an intense neutrophil-mediated inflammatory response that is often difficult to effectively treat. Successful use of interleukin (IL)-1beta inhibition using canakinumab and anakinra has been reported in patients with concomitant pyoderma gangrenosum and hidradenitis suppurativa. We report two cases where targeted therapy with canakinumab failed to lead to improvement for patients with pyoderma gangrenosum and hidradenitis suppurativa. The reason behind the non-response to IL-1beta blockade seen in these patients is unclear. Our report suggests that further controlled studies are warranted to help clinicians predict treatment responses to anti-IL-1 therapies in these challenging patients. PMID- 29344327 TI - Secukinumab: a review of the anti-IL-17A biologic for the treatment of psoriasis. AB - Psoriasis is a systemic inflammatory disease associated with numerous comorbidities and a profound impact on patients' quality of life. While its complex immune pathogenesis is still not fully delineated, current evidence supports a fundamental role of the T-helper-17 (TH-17) pathway and its related interleukin-17 (IL-17) cytokine. Thus, new antipsoriatic therapies have been developed to block this key cytokine and its downstream effects. Secukinumab is a fully humanized, monoclonal anti-IL-17A antibody, and the first in its class to be approved by the US Food and Drug Administration for the treatment of moderate to severe plaque psoriasis. It has also been approved for the treatment of active psoriatic arthritis and ankylosing spondylitis. Its clinical efficacy in plaque psoriasis has been well demonstrated in numerous phase II and III clinical trials. In addition, it has shown superiority in clinical trials to current biologic agents including etanercept and ustekinumab, with a safe adverse event profile. In correlation with excellent skin improvements, secukinumab is also associated with significant improvements in health-related quality of life measures. Thus, secukinumab offers the potential for equal, or improved, therapeutic effects compared with other biologics, and is a valuable addition to our current antipsoriatic armamentarium. PMID- 29344328 TI - Management of functional dyspepsia: state of the art and emerging therapies. AB - Patients with functional dyspepsia, defined in the 2016 Rome IV criteria as bothersome clinical dyspepsia symptoms, experience markedly reduced quality of life. Several etiologies have been associated with the disorder. In the Rome IV criteria, the brain-gut axis was acknowledged as an important factor in the etiology of functional gastrointestinal (GI) disorders. The distinct subgroups of functional dyspepsia, epigastric pain syndrome (EPS) and postprandial distress syndrome (PDS), are treated differently: acid secretion inhibitors are recommended with patients with EPS, whereas prokinetic drugs as mosapride and acotiamide are recommended for patients with PDS. A previous study has reported that proton pump inhibitors (PPIs) and H2-blockers were equally effective in functional dyspepsia. A new drug, acotiamide, a muscarinic antagonist and cholinesterase inhibitor, has been shown to improve gastric motility in rodents and dogs, and to reduce PDS symptoms in patients in double-blind multicenter studies. The pharmacological mechanisms of acotiamide remain unknown; whether acotiamide alters gastric emptying and gastric accommodation in patients with functional dyspepsia remains an open question. Other emerging treatment options include Rikkunshito, a herbal medicine that improves gastric emptying through 5 hydroxytryptamine (5-HT)2B-mediated pharmacological action, and tricyclic antidepressants (TCAs). Different drugs are needed to accommodate the clinical symptoms and etiology in individual patients. PMID- 29344329 TI - Major adverse cardiovascular event reduction with GLP-1 and SGLT2 agents: evidence and clinical potential. AB - Treatment of patients with type 2 diabetes is directed against treating symptoms of hyperglycemia, minimizing the risk of hypoglycemia, and the risk of microvascular and macrovascular complications. The majority of patients with type 2 diabetes die from cardiovascular or cerebrovascular disease. Future therapies should therefore focus on reducing cardiovascular morbidity in this high-risk population. Glucagon-like peptide-1 receptor agonists (GLP-1RA) and sodium glucose co-transporter 2 inhibitors (SGLT2-i) are two drug classes with proven antihyperglycemic effect in type 2 diabetes. However, these drugs seem to have other effects such as weight reduction, low risk of hypoglycemia, and blood pressure reduction. Emerging evidence suggests pleiotropic effects, which potentially could be important in reducing cardiovascular risk. Prompted by regulatory authorities demanding cardiovascular outcome trials (CVOTs) assessing the cardiovascular safety of new antihyperglycemic drug candidates, many CVOTs are ongoing and a few of these are finalized. Somewhat surprising recent CVOTs in both drug classes have shown promising data on cardiovascular morbidity and mortality in patients with a very high risk of cardiovascular events. It is uncertain whether this is a class effect of the two drug classes, and it is yet unproven whether long-term cardiovascular benefits of these drugs can be extrapolated to populations at lower risk of cardiovascular disease. The aim of the present review is to give an overview of our current knowledge of the GLP-1RA and SGLT2-i classes, with specific focus on mechanisms of action, effects on cardiovascular risk factors and cardiovascular morbidity and mortality from the CVOTs presently available. The clinical potential of these data is discussed. PMID- 29344330 TI - Developments in rare bone diseases and mineral disorders. AB - In the last decade, there have been a number of significant advances made in the field of rare bone diseases. In this review, we discuss the expansion of the classification system for osteogenesis imperfecta (OI) and the resultant increase in therapeutic options available for management of OI. Bisphosphonates remain the most widely used intervention for OI, although the effect on fracture rate reduction is equivocal. We review the other therapies showing promising results, including denosumab, teriparatide, sclerostin, transforming growth factor beta inhibition and gene targeted approaches. X-linked hypophosphataemia (XLH) is the most common heritable form of osteomalacia and rickets caused by a mutation in the phosphate regulating endopeptidase gene resulting in elevated serum fibroblast growth factor 23 (FGF23) and decreased renal phosphate reabsorption. The traditional treatment is phosphate replacement. We discuss the development of a human anti-FGF23 antibody (KRN23) as a promising development in the treatment of XLH. The current management of primary hypoparathyroidism is replacement with calcium and active vitamin D. This can be associated with under or over replacement and its inherent complications. We review the use of recombinant parathyroid hormone (1-84), which can significantly reduce the requirements for calcium and vitamin D resulting in greater safety and quality of life for individuals with hypoparathyroidism. The use of receptor activator of nuclear factor kappaB ligand infusions in the treatment of a particular form of osteopetrosis and enzyme replacement therapy for hypophosphatasia are also discussed. PMID- 29344331 TI - The Peripheral Flicker Illusion. AB - A new illusion is reported. A visual object suddenly appearing on a red background sometimes causes an impression of flicker or double flash. In Experiment 1, a red, green, or blue object was presented on a red, green, blue, or gray background. Participants evaluated the illusion strength in reference to the physical flicker of a gray object presented in central vision. The results show that the green or blue object presented on the red background caused the illusion. In Experiment 2, the effect of retinal eccentricity on the illusion was tested. The results showed that the illusion was weak in central vision but became stronger as the retinal eccentricity of the objects' presentation increased. In Experiment 3, optimal luminance conditions for the illusion were explored with the green and blue objects. The illusion was strong when object luminance was lower than background luminance and the optimal luminance for the blue object was lower than that for the green object. We propose a tentative theory for the illusion and discuss its cause. PMID- 29344332 TI - Kitaoka's Tomato: Two Simple Explanations Based on Information in the Stimulus. AB - Kitaoka's Tomato is a color illusion in which a semitransparent blue-green field is placed on top of a red object (a tomato). The tomato appears red even though the pixels would appear green if viewed in isolation. We show that this phenomenon can be explained by a high-pass filter and by histogram equalization. The results suggest that this illusion does not require complex inferences about color constancy; rather, the tomato's red is available in the physical stimulus at the appropriate spatial scale and dynamic range. PMID- 29344333 TI - Inverting the Facing-the-Viewer Bias for Biological Motion Stimuli. AB - Depth-ambiguous point-light walkers are most frequently seen as facing-the-viewer (FTV). It has been argued that the FTV bias depends on recognising the stimulus as a person. Accordingly, reducing the social relevance of biological motion by presenting stimuli upside down has been shown to reduce FTV bias. Here, we replicated the experiment that reported this finding and added stick figure walkers to the task in order to assess the effect of explicit shape information on facing bias for inverted figures. We measured the FTV bias for upright and inverted stick figure walkers and point-light walkers presented in different azimuth orientations. Inversion of the stimuli did not reduce facing direction judgements to chance levels. In fact, we observed a significant facing away bias in the inverted stimulus conditions. In addition, we found no difference in the pattern of data between stick figure and point-light walkers. Although the results are broadly consistent with previous findings, we do not conclude that inverting biological motion simply negates the FTV bias; rather, inversion causes stimuli to be seen facing away from the viewer more often than not. The results support the interpretation that primarily low-level visual processes are responsible for the biases produced by both upright and inverted stimuli. PMID- 29344335 TI - Glycemic control among primary care patients with type 2 diabetes mellitus in the Gaza Strip, Palestine. AB - Aim: In this study, we aimed to assess the level of good glycemic control, to determine association between adherence to antidiabetic medications and glycosylated hemoglobin (HbA1c) and to examine factors influencing good glycemic control. Materials and methods: A cross-sectional design was employed among 369 patients with type 2 diabetes mellitus (T2DM) from four Ministry of Health health centers in 2016. A sample of 3 ml blood was taken to measure the HbA1c, and patients were asked to fill out a pretested questionnaire. Univariate and multivariate logistic regressions, to identify independent factors associated with good glycemic control, were conducted using SPSS software version 22 (IBM Corp, Armonk, NY, USA). Results: Mean [+/-standard deviation (SD)] of HbA1c was 8.97 (2.02) and one fifth of patients had good glycemic control (HbA1c ? 7%). Factors associated with good glycemic control were: older age [odds ratio (OR) = 0.96, 95% confidence interval (CI): 0.933-0.988), high medication adherence (OR: 2.757, 95% CI: 1.308-4.693), and better health literacy (OR= 2.124, 95% CI: 1.917 4.921). Duration of diabetes mellitus (DM > 7 years) was inversely related to good glycemic control (OR = 2.255, 95% CI: 1.189-4.276). Conclusion: Our study showed that glycemic control was suboptimal, and factors associated with that were: older age, high medication adherence, and better health literacy. Knowledge of these factors could be an entry toward helping patients and targeting interventions to improve glycemic control and prevent diabetes-related complications. PMID- 29344334 TI - Collective adhesion and displacement of retinal progenitor cells upon extracellular matrix substrates of transplantable biomaterials. AB - Strategies to replace retinal photoreceptors lost to damage or disease rely upon the migration of replacement cells transplanted into sub-retinal spaces. A significant obstacle to the advancement of cell transplantation for retinal repair is the limited migration of transplanted cells into host retina. In this work, we examine the adhesion and displacement responses of retinal progenitor cells on extracellular matrix substrates found in retina as well as widely used in the design and preparation of transplantable scaffolds. The data illustrate that retinal progenitor cells exhibit unique adhesive and displacement dynamics in response to poly-l-lysine, fibronectin, laminin, hyaluronic acid, and Matrigel. These findings suggest that transplantable biomaterials can be designed to improve cell integration by incorporating extracellular matrix substrates that affect the migratory behaviors of replacement cells. PMID- 29344336 TI - Treating nonalcoholic fatty liver disease in patients with type 2 diabetes mellitus: a review of efficacy and safety. AB - Objective: To review current literature for the efficacy and safety of treatment for nonalcoholic fatty liver disease (NAFLD) in patients with type 2 diabetes mellitus (T2DM). Data sources: A PubMed literature search from January 1990 to June 2017 was conducted using the search terms nonalcoholic fatty liver disease, diabetes mellitus, type 2, therapy, treatment, treat, therapeutics, nonalcoholic fatty liver, nonalcoholic hepatosteatosis, NASH, NAFLD, metformin, and statin. Bibliographies of chosen articles were reviewed. Study selection and data extraction: Relevant articles on metformin, thiazolidinediones (TZD), glucagon like peptide-1 receptor agonists (GLP-1 RA), and statins for the treatment of NAFLD which included patients with T2DM were reviewed. A total of 23 relevant studies were found and included randomized controlled, observational, and open label designs, as well as three meta-analyses. Data synthesis: Metformin combined with weight loss provides a modest improvement in steatosis and no improvement in fibrosis in patients with NAFLD and T2DM. TZDs showed positive results on fibrosis and resolution of NASH but at least half of patients studied were nonresponders. GLP-1 RAs also showed favorable results on reductions in transaminases and steatosis and improvements in insulin sensitivity and weight loss but lack efficacy data for resolution of NASH or improvement in fibrosis scores. Statins showed favorable results on reductions in transaminases but mixed results for improvement in steatosis and fibrosis scores. Conclusion: All reviewed treatment options are safe for management of NAFLD in patients with T2DM but long-term histological improvements are minimal. TZDs are efficacious for resolution of NASH and improvements in fibrosis but long-term use is required to maintain these results. PMID- 29344337 TI - Financial burden of diabetic foot ulcers to world: a progressive topic to discuss always. AB - Diabetic foot complications are the most common occurring problems throughout the globe, resulting in devastating economic crises for the patients, families and society. Diabetic foot ulcers (DFUs) have a neuropathic origin with a progressive prevalence rate in developing countries compared with developed countries among diabetes mellitus patients. Diabetic patients that are of greatest risk of ulcers may easily be diagnosed with foot examination. Economic burden may be carefully examined. The budget costing must include both the clinical and social impact of the patients. PMID- 29344338 TI - Current best practice in the management of Turner syndrome. AB - Turner syndrome (TS) is characterized by partial or complete loss of the second X chromosome in phenotypic females resulting in a constellation of clinical findings that may include lymphedema, cardiac anomalies, short stature, primary ovarian failure and neurocognitive difficulties. Optimizing health care delivery is important to enable these individuals achieve their full potential. We review the current best practice management recommendations for individuals with TS focusing on the latest consensus opinion in regard to genetic diagnosis, treatment of short stature, estrogen supplementation, addressing psychosocial issues, as well screening for other comorbidities. A multidisciplinary approach and a well-planned transition to adult follow-up care will improve health care delivery significantly for this population. PMID- 29344339 TI - Clozapine discontinuation in early schizophrenia: a retrospective case note review of patients under an early intervention service. AB - Aim: Research in patients with treatment-resistant schizophrenia has demonstrated that clozapine discontinuation is associated with poor outcomes. There is, however, a paucity of research investigating the impact of clozapine discontinuation specifically in younger patients with more recent onset schizophrenia. A case note review was therefore conducted to ascertain medium term prognoses in patients with treatment-resistant schizophrenia under an early intervention service (EIS) following clozapine discontinuation. Methods: The case notes of 25 patients under the care of Birmingham EIS who discontinued clozapine were examined retrospectively. Reasons for discontinuation were recorded. Clinical outcomes including total duration of inpatient or home treatment admission, antipsychotic dose, number of alternative antipsychotics prescribed and adverse events were recorded for both the year before and the year after stopping clozapine. Statistical comparisons of pre- and post-discontinuation clinical outcomes determined whether discontinuation had negative effects. Results: There was no significant difference between the pre- and post discontinuation clinical status following clozapine discontinuation. More than half (56%) of patients remained stable after stopping clozapine. Mean inpatient or home treatment stay rose from 29.7 to 62.6 days (p = 0.155), total antipsychotic dose from 50.1% of British National Formulary (BNF) limits to 60.5% (p = 0.627), number of alternative antipsychotics prescribed from 1.28 to 1.80 (p = 0.186), number of hospital/home treatment episodes from 0.20 to 0.44 (p = 0.083) and number of adverse events from 0 to 0.20 (p = 0.059). Non-compliance was the main reason for discontinuation (44%, n = 11). Conclusions: This is the first clozapine discontinuation study specifically considering EIS patients. Discontinuation did not lead to significant effects on 1 year outcomes, though the study is underpowered. These findings may be used to inform future prospective cohort discontinuation studies. PMID- 29344340 TI - Assessment and management of sexual dysfunction in the context of depression. AB - Sexual dysfunction (SD) is pervasive and underreported, and its effects on quality of life are underestimated. Due in part to its bidirectional relationship with depression, SD can be difficult to diagnose; it is also a common side effect of many antidepressants, leading to treatment noncompliance. While physicians often count on patients to spontaneously report SD, treatment is optimized when the clinician instead performs a thorough assessment of sexual functioning before and during drug therapy using a standardized questionnaire such as the Arizona Sexual Experiences Scale (ASEX). Separating the effects of the disorder from those of medications is challenging; we present a concise, evidence-based schematic to assist physicians in minimizing treatment-emergent sexual dysfunction (TESD) while treating depression. Vascular, hormonal, neurogenic, and pharmacological factors should be considered when a patient presents with SD. We also recommend that physicians obtain patient information about baseline and historical sexual functioning before prescribing a drug that may lead to SD and follow up accordingly. When the goal is to treat depression while attenuating the risk of sexual symptoms, physicians may wish to consider agomelatine, bupropion, desvenlafaxine, moclobemide, trazodone, vilazodone, and vortioxetine. PMID- 29344341 TI - Treatment of adult ADHD: a clinical perspective. AB - Adult attention deficit/hyperactivity disorder (ADHD) has moved from the blurred edge of clinical focus to clear recognition as a prevalent and significant disorder in its own right. It is a relatively common comorbidity which if identified and treated may open the door to better outcomes for hard-to-treat patients. Conversely, failure to identify and treat adult ADHD is linked to negative outcomes. The recognition of the importance of adult ADHD in a subset of our patients challenges us to overcome our anxiety about this diagnosis and prevent the societal marginalization of vulnerable patients. Adult ADHD responds well to integrated pharmacological and psychotherapeutic intervention. Its treatment responsiveness reduces disability and allows the comorbidity which is typically present to be addressed. Mastering this challenge can make the diagnosis and treatment of adult ADHD a rewarding experience. PMID- 29344343 TI - The role of selective serotonin reuptake inhibitors in preventing relapse of major depressive disorder. AB - The objective of this review was to evaluate the efficacy of selective serotonin reuptake inhibitors (SSRIs) and SSRIs compared with other treatment modalities in preventing relapse after an episode of major depressive disorder (MDD). An Ovid MEDLINE and PsycINFO search (from 1987 to August 2017) was conducted using the following terms: selective serotonin reuptake inhibitors, antidepressants, depression, prevention, prophylaxis, relapse and MDD. Using predefined criteria, two authors independently selected and reached consensus on the included studies. Sixteen articles met the criteria: 10 compared the relapse rate of selective SSRIs with placebo or other SSRIs; one discussed the effectiveness of SSRIs plus psychotherapy, two compared SSRI versus tricyclic antidepressants (TCAs), two were mainly composed of TCAs plus psychotherapy, and one compared SSRIs and serotonin norepinephrine reuptake inhibitors (SNRIs). According to the included studies, the relapse risk in adults was lower when SSRIs were combined with psychotherapy. Results comparing SSRIs and SNRIs were inconclusive. TCAs may be equally as effective as SSRIs. Atypical antidepressants (mirtazapine and St John's Wort) had no significant difference in efficacy and remission rates compared with SSRIs. Escitalopram appeared to fare better in efficacy than other SSRIs, owing to a higher prophylactic efficacy and lower side effects; however, according to the current data, this difference was not significant. To conclude, this review provides evidence that continuing SSRIs for 1 year reduces risk of MDD and relapse. Furthermore, the combination of SSRIs and cognitive behavioural therapy may effectively reduce relapse. Escitalopram appeared to yield better results and fewer side effects than did other SSRIs or SNRIs. The effectiveness in reducing relapse of SSRIs was similar to that of TCAs and atypical antidepressants. PMID- 29344344 TI - Acetylcholinesterase inhibitors in treatment-resistant psychotic depression. AB - Dopamine receptor antagonists can be effective in psychotic depression but response is not assured. Visual hallucinations may arise from a dysregulation of brain cholinergic systems and acetylcholinesterase inhibitors (AChEIs) can treat such hallucinations in dementia with Lewy bodies (DLB). AChEIs have been used in schizophrenia with some success but their efficacy and tolerability in psychotic depression is unclear. This striking case illustrates AChEIs specifically targeting multimodal hallucinations in treatment-resistant depression. To our knowledge it is the first case report to do so. It highlights the value of delineating psychopathology when considering novel interventions. This case also shows the idiosyncratic nature of side effects and the importance of pursuing different drugs within class. PMID- 29344342 TI - Frontotemporal dementia: latest evidence and clinical implications. AB - Background: Frontotemporal dementia (FTD) describes a cluster of neurocognitive syndromes that present with impairment of executive functioning, changes in behavior, and a decrease in language proficiency. FTD is the second most common form of dementia in those younger than 65 years and is expected to increase in prevalence as the population ages. This goal in our review is to describe advances in the understanding of neurobiological pathology, classification, assessment, and treatment of FTD syndromes. Methods: PubMed was searched to obtain reviews and studies that pertain to advancements in genetics, neurobiology, neuroimaging, classification, and treatment of FTD syndromes. Articles were chosen with a predilection to more recent preclinical/clinical trials and systematic reviews. Results: Recent reviews and trials indicate a significant advancement in the understanding of molecular and neurobiological clinical correlates to variants of FTD. Genetic and histopathologic markers have only recently been discovered in the past decade. Current therapeutic modalities are limited, with most studies reporting improvement in symptoms with nonpharmacological interventions. However, a small number of studies have reported improvement of behavioral symptoms with selective serotonin reuptake inhibitor (SSRI) treatment. Stimulants may help with disinhibition, apathy, and risk-taking behavior. Memantine and cholinesterase inhibitors have not demonstrated efficacy in ameliorating FTD symptoms. Antipsychotics have been used to treat agitation and psychosis, but safety concerns and side effect profiles limit utilization in the general FTD population. Nevertheless, recent breakthroughs in the understanding of FTD pathology have led to developments in pharmacological interventions that focus on producing treatments with autoimmune, genetic, and molecular targets. Conclusion: FTD is an underdiagnosed group of neurological syndromes comprising multiple variants with distinct neurobiological profiles and presentations. Recent advances suggest there is an array of potential novel therapeutic targets, although data concerning their effectiveness are still preliminary or preclinical. Further studies are required to develop pharmacological interventions, as there are currently no US Food and Drug administration approved treatments to manage FTD syndromes. PMID- 29344345 TI - When the drugs don't work: treatment-resistant schizophrenia, serotonin and serendipity. AB - Treatment-resistant schizophrenia is a serious clinical problem. We adopt a systems-level approach positing a greater role for cognitive control mechanisms in the development of psychotic symptoms and illustrate the clinical application of this via a case report of treatment-resistant patients treated successfully with adjunct pro-cognitive serotonergic medication. PMID- 29344346 TI - Characterization and selective incorporation of small non-coding RNAs in non small cell lung cancer extracellular vesicles. AB - Background: Extracellular vesicles (EVs) play important roles in intercellular communication through the delivery of their cargoes, which include proteins, lipids, and RNAs. Increasingly, multiple studies have reported the association between EV small non-coding RNAs and cancer, due to their regulatory functions in gene expression. Hence, analysis of the features of small non-coding RNA expression and their incorporation into EVs is important for cancer research. Results: We performed deep sequencing to investigate the expression of small RNAs in plasma EVs from lung adenocarcinoma (ADC) patients, lung squamous cell carcinoma (SQCC) patients, and healthy controls. Then, eighteen differently expressed miRNAs in plasma EVs was validated by QRT-PCR. The small RNA expression profiles of plasma EVs were different among lung ADC, SQCC patients, and healthy controls. And many small RNAs, including 5' YRNA hY4-derived fragments, miR-451a, miR-122-5p, miR-20a-5p, miR-20b-5p, miR-30b-5p, and miR-665, were significantly upregulated in non-small cell lung cancer (NSCLC) EVs. And the cell viability assays indicated that hY4-derived fragments inhibited the proliferation of lung cancer cell A549. By comparing the cellular and EV expression levels of six miRNAs in NSCLC cells, we found that miR-451a and miR-122-5p were significantly downregulated in NSCLC cell lysates, while significantly upregulated in NSCLC EVs. Conclusions: The differently expressed EV small RNAs may serve as potential circulating biomarkers for the diagnosis of NSCLC. Particularly, YRNA hY4-derived fragments can serve as a novel class of biomarkers, which function as tumor suppressors in NSCLC. Additionally, miR-451a and miR-122-5p may be sorted into NSCLC EVs in a selective manner. PMID- 29333228 TI - Quantification of polysaccharides fixed to Gram stained slides using lactophenol cotton blue and digital image processing. AB - Indigo rings and circles emerged when I added the non-specific polysaccharide stain lactophenol cotton blue to Gram stained slides. I attribute the dark blue staining to the presence of capsular polysaccharides and bacterial slime associated with clumps of Gram-negative bacteria. Since all bacterial cells are glycosylated and concentrate polysaccharides from the media, the majority of cells stain light blue. The contrast between dark and light staining is sufficient to enable a digital image processing thresholding technique to be quantitative with little background noise. Prior to the addition of lactophenol cotton blue, the Gram-stained slides appeared unremarkable, lacking ubiquitous clumps or stained polysaccharides. Adding lactophenol cotton blue to Gram stained slides is a quick and inexpensive way to screen cell cultures for bacterial slime, clumps and biofilms that are invisible using the Gram stain alone. PMID- 29344347 TI - Epigenetic alterations in TRAMP mice: epigenome DNA methylation profiling using MeDIP-seq. AB - Purpose: We investigated the genomic DNA methylation profile of prostate cancer in transgenic adenocarcinoma of the mouse prostate (TRAMP) cancer model and to analyze the crosstalk among targeted genes and the related functional pathways. Methods: Prostate DNA samples from 24-week-old TRAMP and C57BL/6 male mice were isolated. The DNA methylation profiles were analyzed by methylated DNA immunoprecipitation (MeDIP) followed by next-generation sequencing (MeDIP-seq). Canonical pathways, diseases and function and network analyses of the different samples were then performed using the Ingenuity(r) Pathway Analysis (IPA) software. Some target genes with significant difference in methylation were selected for validation using methylation specific primers (MSP) and qPCR. Results: TRAMP mice undergo extensive aberrant CpG hyper- and hypo-methylation. There were 2147 genes with a significant (log2-change >= 2) change in CpG methylation between the two groups, as mapped by the IPA software. Among these genes, the methylation of 1105 and 1042 genes was significantly decreased and increased, respectively, in TRAMP prostate tumors. The top associated disease identified by IPA was adenocarcinoma; however, the cAMP response element-binding protein (CREB)-, histone deacetylase 2 (HDAC2)-, glutathione S-transferase pi (GSTP1)- and polyubiquitin-C (UBC)-related pathways showed significantly altered methylation profiles based on the canonical pathway and network analyses. MSP and qPCR results of genes of interests corroborated with MeDIP-seq findings. Conclusions: This is the first MeDIP-seq with IPA analysis of the TRAMP model to provide novel insight into the genome-wide methylation profile of prostate cancer. Studies on epigenetics, such as DNA methylation, will potentially provide novel avenues and strategies for further development of biomarkers targeted for treatment and prevention approaches for prostate cancer. PMID- 29333229 TI - Predicted protein interactions of IFITMs may shed light on mechanisms of Zika virus-induced microcephaly and host invasion. AB - After the first reported case of Zika virus (ZIKV) in Brazil, in 2015, a significant increase in the reported cases of microcephaly was observed. Microcephaly is a neurological condition in which the infant's head is significantly smaller with complications in brain development. Recently, two small membrane-associated interferon-inducible transmembrane proteins (IFITM1 and IFITM3) have been shown to repress members of the flaviviridae family which includes ZIKV. However, the exact mechanisms leading to the inhibition of the virus are yet unknown. Here, we assembled an interactome of IFITM1 and IFITM3 with known protein-protein interactions (PPIs) collected from publicly available databases and novel PPIs predicted using the High-confidence Protein-Protein Interaction Prediction (HiPPIP) model. We analyzed the functional and pathway associations of the interacting proteins, and found that there are several immunity pathways (toll-like receptor signaling, cd28 signaling in T-helper cells, crosstalk between dendritic cells and natural killer cells), neuronal pathways (axonal guidance signaling, neural tube closure and actin cytoskeleton signaling) and developmental pathways (neural tube closure, embryonic skeletal system development) that are associated with these interactors. Our novel PPIs associate cilia dysfunction in ependymal cells to microcephaly, and may also shed light on potential targets of ZIKV for host invasion by immunosuppression and cytoskeletal rearrangements. These results could help direct future research in elucidating the mechanisms underlying host defense to ZIKV and other flaviviruses. PMID- 29344350 TI - The sensitivity of the human thirst response to changes in plasma osmolality: a systematic review. AB - Background: Dehydration is highly prevalent and is associated with adverse cardiovascular and renal events. Clinical assessment of dehydration lacks sensitivity. Perhaps a patient's thirst can provide an accurate guide to fluid therapy. This systematic review examines the sensitivity of thirst in responding to changes in plasma osmolality in participants of any age with no condition directly effecting their sense of thirst. Methods: Medline and EMBASE were searched up to June 2017. Inclusion criteria were all studies reporting the plasma osmolality threshold for the sensation of thirst. Results: A total of 12 trials were included that assessed thirst intensity on a visual analogue scale, as a function of plasma osmolality (pOsm), and employed linear regression to define the thirst threshold. This included 167 participants, both healthy controls and those with a range of pathologies, with a mean age of 41 (20-78) years.The value +/-95% CI for the pOsm threshold for thirst sensation was found to be 285.23 +/- 1.29 mOsm/kg. Above this threshold, thirst intensity as a function of pOsm had a mean +/- SEM slope of 0.54 +/- 0.07 cm/mOsm/kg. The mean +/- 95% CI vasopressin release threshold was very similar to that of thirst, being 284.3 +/- 0.71 mOsm/kg.Heterogeneity across studies can be accounted for by subtle variation in experimental protocol and data handling. Conclusion: The thresholds for thirst activation and vasopressin release lie in the middle of the normal range of plasma osmolality. Thirst increases linearly as pOsm rises. Thus, osmotically balanced fluid administered as per a patient's sensation of thirst should result in a plasma osmolality within the normal range. This work received no funding. PMID- 29344351 TI - Endemic carbapenem-nonsusceptible Acinetobacter baumannii-calcoaceticus complex in intensive care units of the national referral hospital in Jakarta, Indonesia. AB - Background: Carbapenem-nonsusceptible A. baumannii-calcoaceticus complex have emerged worldwide, but the epidemiology in Indonesian hospitals has not been studied. Methods: A prospective observational study was performed on the intensive care units (ICUs) of the national referral hospital in Jakarta Indonesia, in 2013 and 2014. All consecutive adult patients admitted and hospitalized for >48 h in ICUs were included. Basic and clinical data at admission were recorded. Carbapenem-nonsusceptible A. baumannii-calcoaceticus complex from clinical cultures and standardized screening were included. Environmental niches and healthcare workers (HCWs) were also screened. PCR was used to detect carbapenemase genes, and Raman spectroscopy as well as multilocus sequence typing (MLST) for typing. Results: Of 412 included patients, 69 (16.7%) carried carbapenem-nonsusceptible A. baumannii-calcoaceticus complex on admission, and 89 (25.9%) became positive during ICU stay. The acquisition rate was 43 per 1000 patient-days at risk. Six isolates were cultured from environment and one from a HCW. Acquisition of carbapenem-nonsusceptible A. baumannii calcoaceticus complex was associated with longer ICU stay (median interquartile range [IQR]: 11 days [5-18], adjusted hazard ratio [aHR]: 2.56 [99% confidence interval (CI):1.76-3.70]), but not with mortality (adjusted odds ratio: 1.59 [99%CI: 0.74-3.40] at the chosen level of significance). The blaOXA-23-like gene was detected in 292/318 (91.8%) isolates, including isolates from the environment and HCW. Typing revealed five major clusters. Sequence types (ST)195, ST208, ST218, ST642 as well as new STs were found. The dominant clone consisted of isolates from patients and environment throughout the study period. Conclusions: Carbapenem-nonsusceptible A. baumannii-calcoaceticus complex are endemic in this setting. Prevention requires source control and limiting transmission of strains. Trial registration: The study was retrospectively registered at www.trialregister.nl (No:5541). Candidate number: 23,527, NTR number: NTR5541, Date registered NTR: 22nd December 2015. PMID- 29344352 TI - The use of feed-grade amino acids in lactating sow diets. AB - Background: The use of feed grade amino acids can reduce the cost of lactation feed. With changing genetics, increasing feed costs, and higher number of pigs weaned with heavier wean weights further evaluation of higher inclusion levels of feed-grade amino acid in lactation diets than previously published is warranted. Two experiments (Exp.) were conducted to determine the optimal inclusion level of L-lysine HCl to be included in swine lactation diets while digestible lysine levels remain constant across dietary treatments and allowing feed grade amino acids to be added to the diet to maintain dietary ratios relative to lysine to maximize litter growth rate and sow reproductive performance. Furthermore, the studies were to evaluate minimal amino acid ratios relative to lysine that allows for optimal litter growth rate and sow reproductive performance. Results: Exp. 1: Increasing L-lysine HCl resulted in similar gilt feed intake, litter, and reproductive performance. Average litter gain from birth to weaning was 2.51, 2.49, 2.59, 2.43, and 2.65 kg/d when gilts were fed 0.00, 0.075, 0.150, 0.225, and 0.30% L-lysine HCl, respectively. Exp. 2: The average litter gain from birth to weaning was 2.68, 2.73, 2.67, 2.70, and 2.64 kg/d (P < 0.70) when sows were fed 0.1, 0.2, 0.3, 0.4, and 0.4% L-lysine HCl plus valine, respectively. No other differences among dietary treatments were observed. Conclusions: Collectively, these studies demonstrate corn-soybean meal based lactation diets formulated with a constant SID lysine content for all parities containing up to 0.40% L-lysine HCl with only supplemental feed grade threonine and a methionine source have no detrimental effect on litter growth rate and subsequent total born. PMID- 29344353 TI - Effects of TNF receptor blockade on in vitro cell survival and response to negative energy balance in dairy cattle. AB - Background: Associative data and some controlled studies suggest that the inflammatory cytokine tumor necrosis factor (TNF) alpha can induce fatty liver in dairy cattle. However, research demonstrating that TNFalpha is a necessary component in the etiology of bovine fatty liver is lacking. The aim of this work was to evaluate whether blocking TNFalpha signaling with a synthetic cyclic peptide (TNF receptor loop peptide; TRLP) would improve liver metabolic function and reduce triglyceride accumulation during feed restriction. Results: Capability of TRLP to inhibit TNFalpha signaling was confirmed on primary bovine hepatocytes treated with recombinant bovine TNFalpha and 4 doses of TRLP (0, 1, 10, 50 MUmol/L) over 24 h. Next, 4 lactating Holstein cows (parity 1.4 +/- 0.5, 433 +/- 131 d in milk) in an incomplete Latin rectangle design (3 * 2) were subcutaneously administered with different TRLP doses (0, 1.5, 3.0 mg/kg BW) every 4 h for 24 h, followed by an intravenous injection of TNFalpha (5 MUg/kg BW). Before and for 2 h after TNFalpha injection, TRLP decreased plasma non esterified fatty acid (NEFA) concentration (P <= 0.05), suggesting an altered metabolic response to inflammation. Finally, 10 non-pregnant, non-lactating Holstein cows (3.9 +/- 1.1 yr of age) were randomly assigned to treatments: control (carrier: 57% DMSO in PBS) or TRLP (1.75 mg TRLP /kg BW per day). Treatments were administrated every 4 h for 7 d by subcutaneous injection to feed restricted cows fed 30% of maintenance energy requirements. Daily blood samples were analyzed for glucose, insulin, beta-hydroxybutyrate, NEFA, and haptoglobin concentrations, with no treatment effects detected. On d 7, cows completed a glucose tolerance test (GTT) by i.v. administration of a dextrose bolus (300 mg glucose/kg BW). Glucose, insulin, and NEFA responses failed to demonstrate any significant effect of treatment during the GTT. However, plasma and liver analyses were not indicative of dramatic lipolysis or hepatic lipidosis, suggesting that the feed restriction protocol failed to induce the metabolic state of interest. Injection site inflammation, assessed by a scorer blinded to treatment, was enhanced by TRLP compared to control. Conclusions: Although the TRLP inhibited bovine TNFalpha signaling and altered responses to i.v. administration of TNFalpha, repeated use over 7 d caused apparent local allergic responses and it failed to alter metabolism during a feed restriction-induced negative energy balance. Although responses to feed restriction seemed atypical in this study, side effects of TRLP argue against its future use as a tool for investigating the role of inflammation in metabolic impacts of negative energy balance. PMID- 29344354 TI - A study on the implementation fidelity of the performance-based financing policy in Burkina Faso after 12 months. AB - Background: Performance-based financing (PBF) in the health sector has recently gained momentum in low- and middle-income countries (LMICs) as one of the ways forward for achieving Universal Health Coverage. The major principle underlying PBF is that health centers are remunerated based on the quantity and quality of services they provide. PBF has been operating in Burkina Faso since 2011, and as a pilot project since 2014 in 15 health districts randomly assigned into four different models, before an eventual scale-up. Despite the need for expeditious documentation of the impact of PBF, caution is advised to avoid adopting hasty conclusions. Above all, it is crucial to understand why and how an impact is produced or not. Our implementation fidelity study approached this inquiry by comparing, after 12 months of operation, the activities implemented against what was planned initially and will make it possible later to establish links with the policy's impacts. Methods: Our study compared, in 21 health centers from three health districts, the implementation of activities that were core to the process in terms of content, coverage, and temporality. Data were collected through document analysis, as well as from individual interviews and focus groups with key informants. Results: In the first year of implementation, solid foundations were put in place for the intervention. Even so, implementation deficiencies and delays were observed with respect to certain performance auditing procedures, as well as in payments of PBF subsidies, which compromised the incentive-based rationale to some extent. Conclusion: Over next months, efforts should be made to adjust the intervention more closely to context and to the original planning. PMID- 29344355 TI - Impact of an antifungal stewardship intervention on optimization of candidemia management. AB - Background: Candidemia represents a leading cause of healthcare-associated bloodstream infections with significant morbidity and mortality. Previous studies have demonstrated that comprehensive care bundles improve candidemia management but are time-consuming. Objective: To determine the impact of a one-time targeted candidemia intervention on time to initiation of adequate therapy compared to standard of care. Methods: This Institutional Review Board (IRB)-approved, quasi experiment evaluated a targeted candidemia intervention involving a single phone call to the primary team providing recommendations for care. Daily follow-up was provided by the infectious diseases (ID) consult service. Two time periods were evaluated: pre-intervention (01 August 2012 to 31 July 2014) and post intervention (01 October 2014 to 30 September 2016). The primary endpoint was time to adequate antifungal therapy (TTx) in the business hours (6 a.m. to 6 p.m. Monday through Friday) population (BHP). Secondary endpoints were TTx in the total population as well as infection-related length of stay (IF-LOS) and compliance with quality indicators (composite endpoint: ophthalmology (OPH) consult, repeat cultures, and ?14 days of adequate therapy). Results: In all, 117 patients were included (pre-intervention = 50, post-intervention = 67, BHP = 51). TTx decreased from 2 h 57 m to 2 h 12 m (p = 0.094) in the BHP and 3 h 30 m to 2 h 9 m (p = 0.021) in the total population. There was no difference in IF-LOS (p = 0.797), compliance with quality indicators (p = 0.343), or in-hospital mortality (p = 0.761). Post-intervention, there were more ID and OPH consults (p < 0.001). Conclusions: Our one-time candidemia intervention did not statistically decrease time to adequate therapy in the BHP, but did in the total population. No differences were found for other clinical outcomes, except increases in ID and OPH consults. Further studies are needed to examine whether a one-time intervention is non-inferior to a more comprehensive care bundle. PMID- 29344356 TI - Risk factors and outcomes for multidrug-resistant Gram-negative bacilli bacteremia. AB - Background: The incidence of multidrug-resistant (MDR) organisms is increasing along with mortality. Identifying risk factors for the development of MDR Gram negative bacilli (GNB) bacteremia could greatly impact patient care and management. Methods: Data from the electronic health record of patients with GNB over 13-month period were collected at a single university medical center. Baseline demographic data, risk factor, microbiological data, recurrence of bacteremia, and mortality were recorded. Results: A total of 177 patients were included in the analysis. MDR GNB occurred in 46 patients (26%). The mortality rate in the MDR group was 34.8% compared to 13.7% in non-MDR group (p = 0.002). In multivariate analysis, diabetes mellitus [DM; odds ratio (OR): 2.8, 95% confidence interval (CI): 1-4.88], previous antibiotic use (OR: 2.93, 95% CI: 1.25-6.87), and urinary catheter as a source of infection (OR 5.96, 95% CI: 1.78 19.94) were significant risk factors for the development of MDR GNB. In addition, end-stage liver disease (OR: 3.64, 95% CI: 1.07-12.3), solid organ malignancy (OR: 3.64, 95% CI: 1.25-10.56), intra-abdominal source of infection (OR: 3.66, 95% CI: 1.14-11.73), inappropriate empiric antibiotics (OR 7.59, 95% CI: 1.68 34.34) and urinary catheter as a source of infection (OR 5.68, 95% CI: 1.37-23.5) were significant factors for mortality in patients with MDR GNB. Conclusion: Our study provides important information about the risk factors for the development of MDR GNB bacteremia and helps prognosticate patient with MDR GNB. PMID- 29344357 TI - Examining the effectiveness of a cognitive intervention to improve cognitive function in a population of older adults living with HIV: a pilot study. AB - Objective: The purpose of this randomized-controlled pilot study was to explore the effectiveness of a home-based computerized cognitive training intervention in improving cognitive function in a population of older adults with mild cognitive impairment who are living with HIV. Methods: In all, 24 participants were enrolled in this study. All study participants were impaired [defined as Montreal Cognitive Assessment (MoCA) score < 26]; 12 were randomly assigned to a computer training intervention group and 12 to a control group. The intervention group used a home-based computerized cognitive training program for 8 weeks, while the control group received health-related newsletter via email and follow-up phone calls. Cognitive function was measured at study entry, immediately post intervention, and 8 and 16 weeks post intervention. Results: This study achieved a 92% retention rate, losing two persons from the intervention group. Participants in the intervention group scored significantly higher on cognitive testing immediately post intervention compared to the control group: F(1, 19) = 4.92, p = 0.04. The partial Eta squared of 0.32 indicates a small to moderate effect size. Discussion: Cognitive improvement was seen immediately after the intervention, and cognitive improvement was still evident 16 weeks post intervention. Cognitive training could be considered as an option for older adults with HIV experiencing mild cognitive impairment. PMID- 29344359 TI - Group schema therapy for eating disorders: study protocol. AB - Background: The treatment of eating disorders is a difficult endeavor, with only a relatively small proportion of clients responding to and completing standard cognitive behavioural therapy (CBT). Given the prevalence of co-morbidity and complex personality traits in this population, Schema Therapy has been identified as a potentially viable treatment option. A case series of Group Schema Therapy for Eating Disorders (ST-E-g) yielded positive findings and the study protocol outlined in this article aims to extend upon these preliminary findings to evaluate group Schema Therapy for eating disorders in a larger sample (n = 40). Methods/design: Participants undergo a two-hour assessment where they complete a number of standard questionnaires and their diagnostic status is ascertained using the Eating Disorder Examination. Participants then commence treatment, which consists of 25 weekly group sessions lasting for 1.5 h and four individual sessions. Each group consists of five to eight participants and is facilitated by two therapists, at least one of who is a registered psychologist trained on schema therapy. The primary outcome in this study is eating disorder symptom severity. Secondary outcomes include: cognitive schemas, self-objectification, general quality of life, self-compassion, schema mode presentations, and Personality Disorder features. Participants complete psychological measures and questionnaires at pre, post, six-month and 1-year follow-up. Discussion: This study will expand upon preliminary research into the efficacy of group Schema Therapy for individuals with eating disorders. If group Schema Therapy is shown to reduce eating disorder symptoms, it will hold considerable promise as an intervention option for a group of disorders that is typically difficult to treat. Trial registration: ACTRN12615001323516. Registered: 2/12/2015 (retrospectively registered, still recruiting). PMID- 29344358 TI - The global problem of childhood diarrhoeal diseases: emerging strategies in prevention and management. AB - Acute diarrhoeal diseases remain a leading cause of global morbidity and mortality particularly among young children in resource-limited countries. Recent large studies utilizing case-control design, prospective sampling and more sensitive and broad diagnostic techniques have shed light on particular pathogens of importance and highlighted the previously under recognized impact of these infections on post-acute illness mortality and growth. Vaccination, particularly against rotavirus, has emerged as a key effective means of preventing significant morbidity and mortality from childhood diarrhoeal disease. Other candidate vaccines against leading diarrhoeal pathogens, such as enterotoxigenic Escherichia coli and Shigella spp., also hold significant promise in further ameliorating the burden of enteric infections in children. Large studies are also currently underway evaluating novel and potential easy-to-implement water, sanitation and hygiene (WASH) preventive strategies. Given the ongoing global burden of this illness, the paucity of new advances in case management over the last several decades remains a challenge. The increasing recognition of post acute illness mortality and growth impairment has highlighted the need for interventions that go beyond management of dehydration and electrolyte disturbances. The few trials of novel promising interventions such as probiotics have mainly been conducted in high-income settings. Trials of antimicrobials have also been primarily conducted in high-income settings or in travellers from high income settings. Bloody diarrhoea has been shown to be a poor marker of potentially treatable bacterial enteritis, and rising antimicrobial resistance has also made empiric antimicrobial therapy more challenging in many settings. Novel effective and sustainable interventions and diagnostic strategies are clearly needed to help improve case management. Diarrhoeal disease and other enteric infections remain an unmet challenge in global child health. Most promising recent developments have been focused around preventive measures, in particular vaccination. Further advances in prevention and case management including the possible use of targeted antimicrobial treatment are also required to fully address this critical burden on child health and human potential. PMID- 29344360 TI - Validity, reliability and Norwegian adaptation of the Stroke-Specific Quality of Life (SS-QOL) scale. AB - Background: There is a paucity of stroke-specific instruments to assess health related quality of life in the Norwegian language. The objective was to examine the validity and reliability of a Norwegian version of the 12-domain Stroke Specific Quality of Life scale. Methods: A total of 125 stroke survivors were prospectively recruited. Questionnaires were administered at 3 months; 36 test retests were performed at 12 months post stroke. The translation was conducted according to guidelines. The internal consistency was assessed with Cronbach's alpha; convergent validity, with item-to-subscale correlations; and test-retest, with Spearman's correlations. Scaling validity was explored by calculating both floor and ceiling effects. A priori hypotheses regarding the associations between the Stroke-Specific Quality of Life domain scores and scores of established measures were tested. Standard error of measurement was assessed. Results: The Norwegian version revealed no major changes in back translations. The internal consistency values of the domains were Cronbach's alpha = 0.79-0.93. Rates of missing items were small, and the item-to-subscale correlation coefficients supported convergent validity (0.48-0.87). The observed floor effects were generally small, whereas the ceiling effects had moderate or high values (16% 63%). Test-retest reliability indicated stability in most domains, with Spearman's rho = 0.67-0.94 (all p < 0.001), whereas the rho was 0.35 (p < 0.05) for the 'Vision' domain. Hypothesis testing supported the construct validity of the scale. Standard error of measurement values for each domain were generated to indicate the required magnitudes of detectable change. Conclusions: The Norwegian version of the Stroke-Specific Quality of Life scale is a reliable and valid instrument with good psychometric properties. It is suited for use in health research as well as in individual assessments of persons with stroke. PMID- 29344361 TI - Platelet protein biomarker panel for ovarian cancer diagnosis. AB - Background: Platelets support cancer growth and spread making platelet proteins candidates in the search for biomarkers. Methods: Two-dimensional (2D) gel electrophoresis, Partial Least Squares Discriminant Analysis (PLS-DA), Western blot, DigiWest. Results: PLS-DA of platelet protein expression in 2D gels suggested differences between the International Federation of Gynaecology and Obstetrics (FIGO) stages III-IV of ovarian cancer, compared to benign adnexal lesions with a sensitivity of 96% and a specificity of 88%. A PLS-DA-based model correctly predicted 7 out of 8 cases of FIGO stages I-II of ovarian cancer after verification by western blot. Receiver-operator curve (ROC) analysis indicated a sensitivity of 83% and specificity of 76% at cut-off >0.5 (area under the curve (AUC) = 0.831, p < 0.0001) for detecting these cases. Validation on an independent set of samples by DigiWest with PLS-DA differentiated benign adnexal lesions and ovarian cancer, FIGO stages III-IV, with a sensitivity of 70% and a specificity of 83%. Conclusion: We identified a group of platelet protein biomarker candidates that can quantify the differential expression between ovarian cancer cases as compared to benign adnexal lesions. PMID- 29344362 TI - Development of biomarker combinations for postoperative acute kidney injury via Bayesian model selection in a multicenter cohort study. AB - Background: Acute kidney injury (AKI) is a frequent complication of cardiac surgery. We sought prognostic combinations of postoperative biomarkers measured within 6 h of surgery, potentially in combination with cardiopulmonary bypass time (to account for the degree of insult to the kidney). We used data from a large cohort of patients and adapted methods for developing biomarker combinations to account for the multicenter design of the study. Methods: The primary endpoint was sustained mild AKI, defined as an increase of 50% or more in serum creatinine over preoperative levels lasting at least 2 days during the hospital stay. Severe AKI (secondary endpoint) was defined as a serum creatinine increase of 100% or more or dialysis during hospitalization. Data were from a cohort of 1219 adults undergoing cardiac surgery at 6 medical centers; among these, 117 developed sustained mild AKI and 60 developed severe AKI. We considered cardiopulmonary bypass time and 22 biomarkers as candidate predictors. We adapted Bayesian model averaging methods to develop center-adjusted combinations for sustained mild AKI by (1) maximizing the posterior model probability and (2) retaining predictors with posterior variable probabilities above 0.5. We used resampling-based methods to avoid optimistic bias in evaluating the biomarker combinations. Results: The maximum posterior model probability combination included plasma N-terminal-pro-B-type natriuretic peptide, plasma heart-type fatty acid binding protein, and change in serum creatinine from before to 0-6 h after surgery; the median probability combination additionally included plasma interleukin-6. The center-adjusted, optimism corrected AUCs for these combinations were 0.80 (95% CI: 0.78, 0.87) and 0.81 (0.78, 0.87), respectively, for predicting sustained mild AKI, and 0.81 (0.76, 0.90) and 0.83 (0.76, 0.90), respectively, for predicting severe AKI. For these data, the Bayesian model averaging methods yielded combinations with prognostic capacity comparable to that achieved by standard frequentist methods but with more parsimonious models. Conclusions: Pending external validation, the identified combinations could be used to identify individuals at high risk of AKI immediately after cardiac surgery and could facilitate clinical trials of renoprotective agents. PMID- 29344363 TI - Motile Salmonella serotypes causing high mortality in poultry farms in three South-Western States of Nigeria. AB - This study was carried out to identify the Salmonella serotypes causing high mortality in chickens in Lagos, Ogun and Oyo states, Nigeria. Chickens presented for postmortem examination during disease outbreaks that were characterised by high mortality (40 per cent to 80 per cent) in poultry farms in the study area were examined from January to December, 2013. Samples of the lungs, heart, liver, spleen, kidneys, proventriculus, intestine and caecum were collected from suspected cases of salmonellosis, for bacterial culture and identification. Salmonella isolates were confirmed using PCR and serotyped using the Kauffman White scheme. Twenty-six day-old pullets were raised to two weeks and inoculated orally with 0.2 mL of 1*108 colony forming units of Salmonella Zega identified in the present study to determine their pathogenicity, while another 26 served as control. The Salmonella serotypes were S Zega (n=13; 35.14 per cent), Salmonella Kentucky (n=9; 24.32 per cent), Salmonella Herston (n=6; 16.22 per cent), Salmonella Nima (n=4; 10.81 per cent), Salmonella Telelkebir (n=3; 8.11 per cent), Salmonella Colindale (n=1; 2.70 per cent) and Salmonella Tshiongwe (n=1; 2.70 per cent). Clinical signs in both natural and experimental infections were acute (70 per cent) and chronic (30 per cent), and included weakness, anorexia, yellowish diarrhoea, pasted vents, somnolescence and mortality, while gross lesions showed marked pulmonary congestion and oedema, necrotic foci in the myocardium; the liver, spleen and kidneys were markedly enlarged and had subcapsular multifocal necrosis. There were catarrhal proventriculitis and enteritis, and haemorrhagic typhlitis. While most of the serotypes identified in the present study have been isolated from poultry sources from commercial farms in Nigeria, to the best of the authors' knowledge, they have not been previously reported to cause high mortality in chickens in the study area. PMID- 29344364 TI - Novel dry cryotherapy system for cooling the equine digit. AB - Objectives: Digital cryotherapy is commonly used for laminitis prophylaxis and treatment. Currently validated methods for distal limb cryotherapy involve wet application or compression technology. There is a need for a practical, affordable, dry cryotherapy method that effectively cools the digit. The objective of this study was to evaluate the hoof wall surface temperatures (HWSTs) achieved with a novel dry cryotherapy technology. Design: Repeated measures in vivo experimental study. Setting: Experimental intervention at a single site. Participants: 6 systemically healthy horses (3 mares, 3 geldings). Interventions: Cryotherapy was applied to six horses for eight hours with a commercially available rubber and rubber and welded fabricice boot, which extended proximally to include the foot and pastern. Reusable malleable cold therapy packs were secured against the foot and pastern with the three built-in hook-and-loop fastener panels. Primary and secondary outcome measures: HWST and pastern surface temperature of the cryotherapy-treated limb, HWST of the control limb and ambient temperature were recorded every five minutes throughout the study period. Results: Results were analysed with mixed-effects multivariable regression analysis. The HWST (median 11.1 degrees C, interquartile range 8.6 degrees C-14.7 degrees C) in the cryotherapy-treated limb was significantly decreased compared with the control limb (median 29.7 degrees C, interquartile range 28.9 degrees C-30.4 degrees C) (P<=0.001). Cryotherapy limb HWST reached a minimum of 6.75 degrees C (median) with an interquartile range of 4.1 degrees C 9.3 degrees C. Minimum HWST was achieved 68 minutes after cryotherapy pack application. Conclusions: Dry application of cryotherapy significantly reduced HWST and reached minimums below the therapeutic target of 10 degrees C. This cryotherapy method might offer an effective alternative for digital cooling. PMID- 29344365 TI - Arterial pathophysiology and comparison of two devices for pulse wave velocity assessment in elderly men: the British regional heart study. AB - Objective: Vascular disease is highly prevalent in the elderly. This study aimed to evaluate arterial phenotype in elderly men and compare carotid-femoral pulse wave velocity (cfPWV) assessed by two techniques (Sphygmocor (S)and Vicorder (V)). Methods: 1722 men (72-92 years), participants in the British Regional Heart Study, underwent ultrasound assessment of carotid intima-media thickness (cIMT), carotid distensibility coefficient and presence of carotid plaque. cfPWV and ankle brachial pressure index (ABPI) were also assessed. 123 men returned for between visit reproducibility assessments. Results: Good reproducibility was demonstrated in all measures (Gwet's agreement=0.8 for plaque, intraclass correlation=0.65 for ABPI and coefficient of variation <13% for all other measures). Measurements were obtained in >90% of men for all measures except cfPWV(S) and ABPI. In 1122 men with both cfPWV(V) and cfPWV(S) data, cfPWV(S) was greater than cfPWV(V) (mean difference=0.23,95%CI 0.10 to 0.37 m/s). cfPWV(V) was higher at low cfPWV values and cfPWV(S) was higher at high cfPWV values. Correlation of V transit time (TT) against S carotid and femoral TT demonstrated that the slope of the regression line for femoral TT was steeper than for carotid TT, resulting in a proportionally greater subtraction of carotid TT from femoral TT at higher PWVs. Conclusions: Reproducible, satisfactory quality non-invasive measurements of vascular phenotype were obtainable in a large proportion of elderly men. The discrepancy in results between the two PWV measures may partly be due to the differential impact of subtracting carotid TT when deriving cfPWV(S) across the clinical PWV range. PMID- 29344366 TI - Healthcare provider-led interventions to support medication adherence following ACS: a meta-analysis. AB - : We conducted a systematic review and meta-analysis to determine the effectiveness of healthcare provider-led (HCPs) interventions to support medication adherence in patients with acute coronary syndrome (ACS). A systematic search of Cochrane Library, Medline, EMBASE, PsycINFO, Web of Science, IPA, CINAHL, ASSIA, OpenGrey, EthOS, WorldCat and PQDT was undertaken. Interventions were deemed eligible if they included adult ACS patients, were HCP-led, measured medication adherence and randomised participants to parallel groups. Intervention content was coded using the Behaviour Change Technique (BCT) Taxonomy and data were pooled for analysis using random-effects models. Our search identified 8870 records, of which 27 were eligible (23 primary studies). A meta-analysis (n=9735) revealed HCP-led interventions increased the odds of medication adherence by 54% compared to control interventions (k=23, OR 1.54, 95% CI 1.26 to 1.88, I2=57.5%). After removing outliers, there was a 41% increase in the odds of medication adherence with moderate heterogeneity (k=21, OR 1.41, 95% CI 1.21 to 1.65, I2=35.3%). Interventions that included phone contact yielded (k=12, OR 1.63, 95% CI 1.25 to 2.12, I2=32.0%) a larger effect compared to those delivered exclusively in person. A total of 32/93 BCTs were identified across interventions (mean=4.7, SD=2.2) with 'information about health consequences' (BCT 5.1) (19/23) the most common. HCP-led interventions for ACS patients appear to have a small positive impact on medication adherence. While we were able to identify BCTs among interventions, data were insufficient to determine the impact of particular BCTs on study effectiveness. PROSPERO registration number: CRD42016037706. PMID- 29344367 TI - Elevated brain natriuretic peptide levels in chronic fatigue syndrome associate with cardiac dysfunction: a case control study. AB - Objectives: To explore levels of the brain natriuretic peptide (BNP) and how these associate with the cardiac abnormalities recently identified in chronic fatigue syndrome (CFS). Methods: Cardiac magnetic resonance examinations were performed using 3T Philips Intera Achieva scanner (Best, Netherlands) in CFS (Fukuda) participants and sedentary controls matched group wise for age and sex. BNP was also measured by using an enzyme immunoassay in plasma from 42 patients with CFS and 10 controls. Results: BNP levels were significantly higher in the CFS cohort compared with the matched controls (P=0.013). When we compared cardiac volumes (end-diastolic and end-systolic) between those with high BNP levels (BNP >400 pg/mL) and low BNP (<400 pg/mL), there were significantly lower cardiac volumes in those with the higher BNP levels in both end-systolic and end diastolic volumes (P=0.05). There were no relationships between fatigue severity, length of disease and BNP levels (P=0.2) suggesting that our findings are unlikely to be related to deconditioning. Conclusion: This study confirms an association between reduced cardiac volumes and BNP in CFS. Lack of relationship between length of disease suggests that findings are not secondary to deconditioning. Further studies are needed to explore the utility of BNP to act as a stratification paradigm in CFS that directs targeted treatments. Trail registration number: Registered with NIHR Portfolio CLRN ID 97805. PMID- 29344368 TI - Inception of the 'endocarditis team' is associated with improved survival in patients with infective endocarditis who are managed medically: findings from a before-and-after study. AB - Objective: Despite improvements in its management, infective endocarditis (IE) is associated with poor survival. The aim of this study was to evaluate the impact of a multidisciplinary endocarditis team (ET), including a cardiologist, microbiologist and a cardiac surgeon, on the outcome of patients with acute IE according to medical or surgical treatment strategies. Methods: We conducted an observational before-and-after study of 196 consecutive patients with definite IE, who were treated at a tertiary reference centre between 2009 and 2015. The study was divided into two periods: period 1, before the formation of the ET (n=101), and period 2, after the formation of the ET (n=95). The role of the ET included regular multidisciplinary team meetings to confirm diagnosis, inform the type and duration of antibiotic therapy and recommend early surgery, when indicated, according to European guidelines. Results: The patient demographics and predisposing conditions for IE were comparable between the two study periods. In the time period following the introduction of the ET, there was a reduction in both the time to commencement of IE-specific antibiotic therapy (4.0+/-4.0 days vs 2.5+/-3.2 days; P=0.004) and the time from suspected IE to surgery (7.8+/-7.3 days vs 5.3+/-4.2 days; P=0.004). A 12-month Kaplan-Meier survival for patients managed medically was 42.9% in the pre-ET period and 66.7% in the post-ET period (P=0.03). The involvement of the ET was a significant independent predictor of 1 year survival in patients managed medically (HR 0.24, 95% CI 0.07 to 0.87; P=0.03). Conclusions: A standardised multidisciplinary team approach may lead to earlier diagnosis of IE, more appropriate individualised management strategies, expedited surgery, where indicated, and improved survival in those patients chosen for medical management, supporting the recent change in guidelines to recommend the use of a multidisciplinary team in the care of patients with IE. PMID- 29344369 TI - Rates and risk of arrhythmias in cancer survivors with chemotherapy-induced cardiomyopathy compared with patients with other cardiomyopathies. AB - Objectives: There is little information about arrhythmia burden in cancer survivors with chemotherapy-induced cardiomyopathy (CIC). We hypothesise that the rates and risk of arrhythmias will be similar in CIC when compared with other non ischaemic cardiomyopathy (NICMO) aetiologies. Methods: We retrospectively identified nine patients with CIC and an implantable defibrillator and 18 age and sex-matched control patients (nine patients with NICMO and nine patients with ischaemic cardiomyopathy (ICMO)). Rates and odds of arrhythmias were calculated by type of cardiomyopathy, adjusting for days since implantable cardioverter defibrillator implantation, history of atrial fibrillation and length of follow up using logistic regression analysis. Results: Compared with patients with NICMO, rates and adjusted odds were similar for patients with CIC for atrial arrhythmias (44.4% vs 33.3%; adjusted OR=1.89; 95% CI0.17 to 21.03; P=0.61), non sustained ventricular tachycardia (NSVT) (44.4% vs 33.3%; OR=2.10; 95% CI 0.21 to 20.56; P=0.53), and the combined outcome of NSVT, sustained ventricular tachycardia and/or ventricular fibrillation (44.4% vs 44.4%; OR=2.70; 95% CI 0.25 to 29.48; P=0.42). Conversely, compared with patients with NICMO, patients with ICMO demonstrated higher rates and adjusted odds of the combined outcome (88.9% vs 44.4%; OR=28.60; 95% CI 1.26 to 648.2; P=0.04) and NSVT (77.8% vs 33.3%; OR=8.95; 95% CI 0.90 to 88.94; P=0.06). Conclusions: While tentative based on sample size, rates of arrhythmias in patients with CIC appear to be similar to those experienced by patients with other forms of NICMO. PMID- 29344370 TI - Prevalence and prognostic value of echocardiographic screening for rheumatic heart disease. AB - Objective: Rheumatic heart disease (RHD) remains a major health problem in many low-income and middle-income countries. The use of echocardiographic imaging suggests that subclinical disease is far more widespread than previously appreciated, but little is known as to how these mild forms of RHD progress. We have determined the prevalence of subclinical RHD in a large group of schoolchildren in Aswan, Egypt and have evaluated its subsequent progression. Methods: Echocardiographic screening was performed on 3062 randomly selected schoolchildren, aged 5-15 years, in Aswan, Egypt. Follow-up of children with a definite or borderline diagnosis of RHD was carried out 48-60 months later to determine how the valvular abnormalities altered and to evaluate the factors influencing progression. Results: Sixty children were initially diagnosed with definite RHD (19.6 per 1000 children) and 35 with borderline disease (11.4 per 1000); most had mitral valve disease. Of the 72 children followed up progression was documented in 14 children (19.4%) and regression in 30 (41.7%) children. Boys had lower rates of progression while older children had lower rates of regression. Functional defects of the valve even in the presence of structural features were associated with lower rates of progression and higher rates of regression than structural changes. Conclusions: RHD has a high prevalence in Egypt. Although a high proportion of the abnormalities originally detected persisted at follow-up, both progression and regression of valve lesions were demonstrated. PMID- 29344371 TI - Accrual monitoring in cardiovascular trials. AB - Objective: To provide brief guidance on how to design accrual monitoring activities in a clinical trial protocol. Setting: Two completed clinical trials that did not achieve the planned sample size, the Cost of Strategies After Myocardial Infarction (COSTAMI) trial and the Biventricular Pacing After Cardiac Surgery (BiPACS) trial. Design: A Bayesian monitoring tool, the constant accrual model, is applied retrospectively to accrual data from each case study to illustrate how the tool could be used to identify problems with accrual early in the trial period and to frame the conditions in which the approach can be used in practice. Results: After 312 days and 155 patients enrolled in the COSTAMI trial, accrual could be classified as 'off target' on the basis of statistical criteria outlined in the protocol. As for the BiPACS trial, after 2 years, it was already evident that the accrual was 'considerably off target'. Conclusions: Prompt awareness of a high risk of accrual failure could trigger different interventions to overcome protocol-related, patient-related or investigator-related barriers to recruitment or ultimately contribute to an early stopping decision due to recruitment futility.Accrual prediction models should be included as standard tools for routine monitoring activities in cardiovascular research. Among them, methods relying on the Bayesian approach are particularly attractive, as they can naturally update past evidence when actual accrual data becomes available. PMID- 29344372 TI - Association of high-density lipoprotein cholesterol with non-fatal cardiac and non-cardiac events: a CANHEART substudy. AB - Background: Emerging evidence has questioned the role of high-density lipoprotein cholesterol (HDL-C) as an independent and modifiable risk factor for cardiovascular disease. We sought to understand the relationship between HDL-C levels and subsequent non-fatal clinical events. Methods: Individuals without prior cardiovascular disease or cancer were identified. Outcomes of interest were classified as non-fatal cardiovascular, cancer and infectious. Sex-stratified, multivariable, cause-specific Cox proportional hazards models were created. The reference level HDL-C for both women and men was 51-60 mg/dL. Results: Our cohort consisted of 631 762 individuals. For cardiovascular events, there was a consistent inverse relationship, with higher adjusted HRs for the lower HDL-C strata in both men and women. This relationship was also seen in the composite of non-cardiovascular outcomes. In women, the HR in the <30 mg/dL HDL-C category was 2.10 (95% CI 1.66 to 2.57) and 1.86 (95% CI 1.27 to 2.72) for cardiovascular and non-cardiovascular outcomes, respectively; in contrast, in the >90 mg/dL group, it was 0.87 (95% CI 0.74 to 1.02) and 0.81 (95% CI 0.63 to 1.06). For men, HRs were 2.02 (95% CI 1.79 to 2.28) and 1.84 (95% CI 1.47 to 2.31) in the <30 mg/dL HDL-C category for cardiovascular and non-cardiovascular outcomes, respectively, compared with 0.73 (95% CI 0.53 to 1.00) and 1.07 (95% CI 0.67 to 1.70) in the >90 mg/dL group. Conclusions: We found an inverse relationship between HDL-C and a wide spectrum of non-fatal outcomes, suggesting that HDL-C is a heavily confounded factor that may be a marker of poor overall health, rather than an independent and modifiable risk factor. PMID- 29344373 TI - Multianalysis with optical coherence tomography and vasomotion in everolimus eluting stents and everolimus-eluting biovascular scaffolds: the MOVES trial. AB - Aims: To compare endothelium-dependent vasomotor function and vascular healing 15 months after implantation of two new-generation drug-eluting stents and biovascular scaffolds (BVS). Methods and results: A total of 28 patients previously treated with a SYNERGY stent (bioabsorbable polymer everolimus-eluting stents (BP-EES)), a PROMUS stent (persistent polymer everolimus-eluting stents (PP-EES)) or an ABSORB (BVS) underwent control coronary angiography, 15 months after implantation, coupled with optical coherence tomography imaging and supine bicycle exercise. Intracoronary nitroglycerin was administered after exercise testing. Coronary vasomotor response was assessed using quantitative coronary angiography at rest, during supine bicycle exercise and after nitroglycerin. The primary end point was the percent change in mean lumen diameter compared with baseline. Secondary end points were strut coverage and apposition.There were no significant differences in vasomotor response between the three treatment groups. Patients with PP-EES showed significant vasoconstriction of the proximal peristent segment at maximum exercise (P=0.02). BP-EES (2.7%, 95% CI 0 to 5.5) and BVS (3.2%, 95% CI 0 to 6.7) showed less uncovered struts than PP-EES (12.1%, 95% CI 2.9 to 21.3, P=0.02 and 0.09, respectively). Complete strut apposition was more frequently seen with BP-EES (99.6%, 95% CI 99.2 to 100) than with BVS (98.9%, 95% CI 98.2 to 99.6, P=0.04) or PP-EES (95.0%, 95% CI 91.6 to 98.5, P=0.001). Conclusion: BVS and thin strut BP-EES have a reassuring vasomotion profile, suggesting minimal endothelial dysfunction 15 months after implantation. PMID- 29344374 TI - Cardioprotection by an anti-MASP-2 antibody in a murine model of myocardial infarction. AB - Background: Myocardial ischaemia-reperfusion injury is a major cause of mortality and morbidity in the developed world. Many approaches have been investigated to counteract the pathological consequences associated with acute myocardial infarction (AMI) and cardiac remodelling. It is accepted that inflammation, and therefore activation of the complement pathway, is a crucial step in the pathogenesis of this injury, and many attempts have been made to ameliorate the infarction and consequent dysfunction using anticomplement therapy, with mixed success. Recently, the lectin complement activation pathway involving the mannose binding lectin-associated serine protease 2 (MASP-2) has been shown to be an important mediator of the inflammatory response in ischaemia/reperfusion injury in the heart. In this study, therefore, we aimed to investigate the feasibility of using monoclonal antibodies raised against MASP-2 in a murine model of AMI. Methods: Mice were injected with anti-MASP-2 antibody or control 18 hours prior to experimental infarction by ligation of the left anterior descending coronary artery for 30 min followed by 120 min reperfusion. The developed infarct was measured, and blood was collected for analysis of lectin pathway functional activity. Results and conclusions: We found that mice treated with anti-MASP-2 antibody had smaller infarcts than those treated with control antibody. We believe this may represent a valuable step forward in the protection of the myocardium against ischaemia-reperfusion injury. PMID- 29344375 TI - Elevated serum levels of cardiovascular biomarkers are associated with progression of renal cancer. AB - Objective: Renal cell carcinoma (RCC) is a hypervascular tumour due to high constitutive production of vascular endothelial growth factor (VEGF), which is activated by hypoxia-inducible factor (HIF). Elevated levels of cardiovascular peptides, including brain natriuretic peptide (BNP), have been reported in patients with cancer, regardless of whether they have overt cardiovascular disease. Furthermore, it has been demonstrated that hypoxia stimulates BNP production by an HIF-dependent manner. However, the clinical implications of such cardiovascular peptides in patients with RCC have not been assessed. Methods: In patients with clear cell RCC who underwent nephrectomy, we investigated the relationship between the serum level of BNP or N-terminal pro-BNP (NT-proBNP) and various clinicopathological characteristics, including serum VEGF and expression of BNP and HIF-2 alpha in the primary tumour. Results: Elevated preoperative serum levels of BNP, NT-proBNP and VEGF, as well as increased tumour expression of HIF-2 alpha, were associated with a worse performance status, local invasion, distant metastasis and shorter overall survival. HIF-2 alpha expression showed a positive correlation with the preoperative serum VEGF level, while there was no relation between the serum levels of BNP/NT-proBNP and VEGF or tumour expression of HIF-2 alpha. BNP expression was very low in both tumour tissues and normal kidney tissues. Serum levels of BNP, NT-proBNP and VEGF all decreased significantly after nephrectomy. Conclusions: Our findings suggested that the preoperative serum levels of BNP and NT-proBNP are markers of tumour progression, as well as indicators of subclinical functional and structural myocardial damage in patients with advanced RCC. PMID- 29344376 TI - Effectiveness of pharmacist's intervention in the management of cardiovascular diseases. AB - The pharmacist may play a relevant role in primary and secondary prevention of cardiovascular diseases, mainly through patient education and counselling, drug safety management, medication review, monitoring and reconciliation, detection and control of specific cardiovascular risk factors (eg, blood pressure, blood glucose, serum lipids) and clinical outcomes. Systematic reviews of randomised controlled and observational studies have documented an improved control of hypertension, dyslipidaemia or diabetes, smoking cessation and reduced hospitalisation in patients with heart failure, following a pharmacist's intervention. Limited proof for effectiveness is available for humanistic (patient satisfaction, adherence and knowledge) and economic outcomes. A multidisciplinary approach, including medical input plus a pharmacist, specialist nurse or both, and a greater involvement of community rather than hospital pharmacists, seems to represent the most efficient and modern healthcare delivery model. However, further well-designed research is demanded in order to quantitatively and qualitatively evaluate the impact of pharmacist's interventions on cardiovascular disease and to identify specific areas of impact of collaborative practice. Such research should particularly focus on the demonstration of a sensitivity to community pharmacist's intervention. Since pharmacy services are easily accessible and widely distributed in the community setting, a maximum benefit should be expected from interventions provided in this context. PMID- 29344377 TI - Major adverse cardiac and cerebrovascular event and patients' quality of life after endoscopic vein harvesting as compared with open vein harvest (MAQEH): a pilot study. AB - Background: This is a prospective, comparative, pilot and follow-up (2-year postoperatively) study in patients undergoing coronary artery bypass graft surgery where the long saphenous vein was harvested either by the endoscopic vein harvest (EVH) technique or open vein harvest (OVH) technique. Quality of life (QOL) and major adverse cardiac and cerebrovascular events (MACCE) were assessed. Methods: Alive patients who were initially part of a pilot study when EVH was introduced in our institution were included (n=48 EVH, n=49 OVH). Patients were sent a QOL questionnaire (SF12v2; 12-item medical outcomes study short form health survey version 2.0), and their cardiologist and general practitioner were contacted to assess MACCE. Results: Median follow-up was 32 and 33 months, respectively. Three patients died (2 EVH, 1 OVH). Of the remaining 97 patients who were sent a questionnaire, 76% patients returned the form. More patients from the EVH group returned the QOL questionnaire (82% vs 71%). Time taken to return to normal daily activities was much shorter in EVH (median 6 (2-30) weeks) compared with OVH (median 9 (2-50) weeks) (P<0.05). QOL questionnaire revealed significant difference in physical score at follow-up: 45.3 (10.2) for EVH group and 40.7 (11.0) for OVH group (P<0.05). There was no difference in mental scores (46.9 (10.5) vs 49.2 (9.1), P=0.4). There were no significant differences in MACCEs including death between the two groups (12.2% vs 13.9%, P=0.5). Conclusion: EVH patients returned to normal daily activities faster than OVH patients and experienced better physical QOL even after 2 years postoperatively with no increase in MACCE during follow-up. PMID- 29344378 TI - Clinical outcomes and costs of cardiac revascularisation in England and New York state. AB - Objectives: Healthcare expenditure per-capita in the USA is higher than in England. We hypothesised that clinical outcomes after cardiac revascularisation are better in the USA. We compared costs and outcomes of patients undergoing coronary artery bypass grafting (CABG) and percutaneous coronary intervention (PCI) in England and New York State (NYS). Methods: Costs and total mortality were assessed using the Hospital Episode Statistics for England and the Statewide Planning and Research Cooperative System for NYS. Outcomes after a first CABG or PCI were assessed in patients undergoing a first CABG (n=142 969) or PCI (n=431 416). Results: After CABG, crude total mortality in England was 0.72% lower at 30 days and 3.68% lower at 1 year (both P<0.001). After PCI, crude total mortality was 0.35% lower at 30 days and 3.55% lower at 1 year (both P<0.001). No differences emerged in total mortality at 30 days after either CABG (England: HR 1.02,95% CI 0.94 to 1.10) or PCI (HR 1.04, 95% CI 0.99 to 1.09) after covariate adjustment. At 1 year, adjusted total mortality was lower in England after both CABG (HR 0.74, 95% CI 0.71 to 0.78) and PCI (HR 0.66, 95% CI 0.65 to 0.68). After adjustment for cost-to-charge ratios and purchasing power parities, costs in NYS amounted to uplifts of 3.8-fold for CABG and 3.6-fold for PCI. Conclusions: Total mortality after CABG and PCI was similar at 30 days and lower in England at 1 year. Costs were approximately fourfold higher in NYS. PMID- 29344379 TI - Changes in contractile protein expression are linked to ventricular stiffness in infants with pulmonary hypertension or right ventricular hypertrophy due to congenital heart disease. AB - Background: The right ventricle (RV) is not designed to sustain high pressure leading to failure. There are no current medications to help RV contraction, so further information is required on adaption of the RV to such hypertension. Methods: The Right Ventricle in Children (RVENCH) study assessed infants with congenital heart disease undergoing cardiac surgery with hypertensive RV. Clinical and echocardiographic data were recorded, and samples of RV were taken from matched infants, analysed for proteomics and compared between pathologies and with clinical and echocardiographic outcome data. Results: Those with tetralogy of Fallot (TOF) were significantly more cyanosed than those with ventricular septal defect (median oxygen saturation 83% vs 98%, P=0.0038), had significantly stiffer RV (tricuspid E wave/A wave ratio 1.95 vs 0.84, P=0.009) and had most had restrictive physiology. Gene ontology in TOF, with enrichment analysis, demonstrated significant increase in proteins of contractile mechanisms and those of calmodulin, actin binding and others associated with contractility than inventricular septal defect. Structural proteins were also found to be higher in association with sarcomeric function: Z-disc, M-Band and thin-filament proteins. Remaining proteins associated with actin binding, calcium signalling and myocyte cytoskeletal development. Phosphopeptide enrichment led to higher levels of calcium signalling proteins in TOF. Conclusion: This is the first demonstration that those with an RV, which is stiff and hypertensive in TOF, have a range of altered proteins, often in calcium signalling pathways. Information about these alterations might guide treatment options both in terms of individualised therapy or inotropic support for the Right ventricle when hypertensive due to pulmoanry hypertension or congenital heart disease. PMID- 29344380 TI - Sex-stratified analysis of national trends and outcomes in isolated tricuspid valve surgery. AB - Objective: Female sex is a known risk factor for cardiac surgery, and tricuspid valve (TV) disease is more common in women. There are few data on sex-stratified surgical outcomes for isolated TV surgery. An administrative database was used to compare acute in-hospital outcomes between men and women undergoing isolated TV surgery. Methods: Patients aged >18 who underwent TV repair or replacement from 2004 to 2013 were identified using the National Inpatient Sample. Patients were excluded if they had congenital heart disease, endocarditis, or were undergoing concomitant cardiac surgeries except coronary bypass. Results were weighted to represent national averages. Sex-stratified analysis was performed using propensity score matching to compare in-hospital mortality, postoperative complications and hospital costs. Results: Over 10 years, women represented 58% of the 5005 TV surgeries performed. With propensity matching, hospital mortality (7.9% vs 7.7%; P=0.99) and median length of stay (11 vs 11 days; P=0.99) were similar between men and women. However, median hospital charges were higher for men ($166 000 vs $155 000; P=0.04). Conclusion: Isolated TV surgery is rare, but women more commonly undergo the procedure. In-hospital mortality was similar between men and women after propensity matching, but remains markedly high for both men and women in comparison to that reported for left-sided isolated valve surgery. PMID- 29344381 TI - Impact of nutritional indices on mortality in patients with heart failure. AB - Background: Malnutrition is a common condition that is associated with adverse prognosis in patients with heart failure (HF). The Prognostic Nutritional Index (PNI), Geriatric Nutritional Risk Index (GNRI) and controlling nutritional status (CONUT) have all been used as objective indices for evaluating nutritional status. We aimed to clarify the relationship between these nutritional indices and the parameters of inflammatory markers, cardiac function and exercise capacity, as well as to compare the ability of these indexes for predicting mortality. Methods: We evaluated PNI, GNRI and CONUT in consecutive 1307 patients with HF. Results: First, there were significant correlations between nutritional indices and the following: C reactive protein; tumour necrosis factor-alpha; adiponectin; B-type natriuretic peptide; troponin I; inferior vena cava diameter and peak VO2 (P<0.05, respectively). Second, in the Kaplan-Meier analysis (follow up 1146 days), all-cause mortality progressively increased from normal to mild, moderate and severe disturbance groups in the indices (log-rank, P<0.01, respectively). In the Cox proportional hazard analysis, each index was an independent predictor of all-cause mortality in patients with HF (P<0.001, respectively). Third, receiver operating curve demonstrated that the areas under the curve of PNI and GNRI were larger than that of CONUT score (P<0.05, respectively). Conclusion: Patients with HF being malnourished had higher mortality accompanied by higher levels of C reactive protein, tumour necrosis factor-alpha, adiponectin, B-type natriuretic peptide, troponin I, right-sided volume overload and impaired exercise capacity, rather than left ventricular systolic function. Additionally, PNI and GNRI were superior to CONUT score in predicting mortality in patients with HF. PMID- 29344382 TI - Advanced therapies for the management of adults with pulmonary arterial hypertension due to congenital heart disease: a systematic review. AB - Pulmonary arterial hypertension (PAH) secondary to congenital heart disease (CHD) is the third most common cause of PAH, and it is becoming increasingly common as improvements in the management of CHD have led to increased life expectancy for these patients. The medical management of PAH due to CHD (PAH-CHD) is largely the same as what has been used for the treatment of idiopathic PAH, though the body of literature supporting this management decision is very small. There are currently few studies available which specifically focus on the treatment of PAH CHD. The purpose of this literature review is to compare the results of those studies that assessed the response to medical therapy among adults with PAH-CHD; studies were excluded if they focused on paediatric patients, did not include an assessment of 6 min walking distance or specifically assessed combination therapies. This review found that riociguat, bosentan, epoprostenol and sildenafil were all capable of improving functional capacity and haemodynamic parameters in patients with PAH-CHD, but whether this corresponds to an increase in mortality remains to be seen. Limitations of this review include the small sample size and variable duration of the included studies, which makes drawing direct comparisons between studies and the study drugs difficult. The lack of large, randomised double-blind clinical trials comparing different drugs head to head highlights an area that is ripe for ongoing medical research, the results of which may help shape future treatment algorithms tailored specifically for adults with PAH-CHD. PMID- 29344383 TI - Prognosis of patients with secondary mitral regurgitation and reduced ejection fraction. AB - Objective: The impact of the severity of secondary mitral regurgitation (MR) on the risk of death and heart failure (HF) hospitalisations in patients with reduced left ventricular (LV) systolic function is poorly defined. The study sought to identify the incremental risk of secondary MR in patients with reduced LV systolic function. Methods: We studied 615 consecutive patients with LV ejection fraction <=35% by transthoracic echocardiography at a single medical centre. Patients were divided into three groups of no MR, mild, or moderate to severe MR. The median follow-up was 2.9 years. The primary endpoint was a composite of death or HF hospitalisations. Results: Compared with patients with no MR, the risk of death or HF hospitalisations was higher for mild MR (HR 1.7, P=0.003) and moderate to severe MR (HR 2.7, P<0.001). The risk was also higher for the component endpoints of HF hospitalisations (mild MR: HR 2.3, P=0.001; moderate to severe MR: HR 3.5, P<0.001) and death (mild MR: HR 1.6, P=0.033; moderate to severe MR: HR 2.6, P<0.001). After adjustment for other covariates, MR was no longer significantly associated with death or HF hospitalisations, or death alone, but remained significantly associated with HF hospitalisations (mild MR: HR 1.7, P=0.028; moderate to severe MR: HR 2.2, P=0.002). Conclusions: In patients with reduced LV systolic function, secondary MR is associated with an increased risk of HF hospitalisations but not death. PMID- 29344384 TI - Blood pressure target achievement and antihypertensive medication use in women and men after first-ever myocardial infarction: the Tromso Study 1994-2016. AB - Background: Recurrent cardiovascular events after myocardial infarction (MI) are frequent, and gender differences in blood pressure treatment have been reported. Despite increased focus on secondary prevention, recent reports indicate that treatment targets are not achieved. There is a need for gender-specific analyses of post-MI blood pressure treatment target achievement and antihypertensive medication adherence. Design: We investigated the change in systolic and diastolic blood pressure and antihypertensive drug use after first-ever MI over two time periods in a Norwegian population-based study. Methods: We followed 10 089 participants (55% women) attending the Tromso Study in 1994-1995 (MI-cohort I) and 8412 participants (55% women) attending the Tromso Study 2007-2008 (MI cohort II) for first-ever MI up to their participation in 2007-2008 and 2015 2016, respectively. We used linear regression models to investigate sex and age differences in change in blood pressure. Results: A total of 396 participants in MI-cohort I and 131 participants in MI-cohort II had a first-ever MI in the observation periods. In MI-cohort I, 35% of the women and 52% of the men achieved the treatment targets of blood pressure <140/90 mm Hg (130/80 mm Hg if diabetic), while the proportions for MI-cohort II were 50% and 54% for women and men, respectively. Antihypertensive use was reported in 88% of women and 87% of men in MI-cohort I, and 76% of women and 81% of men in MI-cohort II. Conclusions: We found an overall low achievement of the treatment target. The findings call for better strategies for secondary prevention for both women and men. PMID- 29344385 TI - Improving attendance to genetic counselling services for gynaecological oncology patients. AB - Background: Gynaecological cancers may be the sentinel malignancy in women who carry a mutation in BRCA1 or 2, a mis-match repair gene causing Lynch Syndrome or other genes. Despite published guidelines for referral to a genetics service, a substantial number of women do not attend for the recommended genetic assessment. The study aims to determine the outcomes of systematic follow-up of patients diagnosed with ovarian or endometrial cancer from Gynaecologic-oncology multidisciplinary meetings who were deemed appropriate for genetics assessment. Methods: Women newly diagnosed with gynaecological cancer at the Royal Hospital for Women between 2010 and 2014 (cohort1) and 2015-2016 (cohort 2) who were identified as suitable for genetics assessment were checked against the New South Wales/Australian Capital Territory genetic database. The doctors of non-attenders were contacted regarding suitability for re-referral, and patients who were still suitable for genetics assessment were contacted by mail. Attendance was again checked against the genetics database. Results: Among 462 patients in cohort 1, flagged for genetic assessment, 167 had not consulted a genetic service at initial audit conducted in 2014. 86 (18.6%) women whose referral was pending clarification of family history and/or immunohistochemistry did not require further genetic assessment. Letters were sent to 40 women. 7 women (1.5%) attended hereditary cancer clinic in the following 6 months.The audit conducted in 2016 identified 148 patients (cohort 2) appropriate for genetic assessment at diagnosis. 66 (44.6%) had been seen by a genetics service, 51 (34.5%) whose referral was pending additional information did not require further genetic assessment. Letters were sent to 15 women, of whom 9 (6.1%) attended genetics within 6 months. Conclusions: To improve the effectiveness of guidelines for the genetic referral of women newly diagnosed with ovarian cancer, clinicians need to obtain a thorough family history at diagnosis; arrange for reflex MMR IHC according to guidelines; offer BRCA or panel testing to all women with non mucinous ovarian cancer prior to discharge and systematically follow up all women referred to genetics at the post-op visit. PMID- 29344386 TI - Current and future therapies for SLE: obstacles and recommendations for the development of novel treatments. AB - SLE is a serious, debilitating autoimmune disease that affects various organs and body systems. Of all the heterogeneous autoimmune diseases, SLE is perhaps the most heterogeneous. Patients with SLE, who are primarily female, have diverse disease manifestations and severity. SLE is characterised by substantial concentrations of autoantibodies against nuclear antigens, which are thought to be caused by immune cell dysregulation. Until recently, several immunosuppressant agents were used to treat this disease. Efforts to develop drugs against targets potentially involved in disease mechanisms have resulted in the identification and use of BAFF (B-cell activating factor)/APRIL (a proliferation-inducing ligand) inhibitors to treat SLE. Drugs in late-stage development that focus on pathways that are dysregulated in SLE include those that target the interferon pathway, T-cell signalling and B-cell signalling. New therapeutic agents are still necessary because of the unmet medical needs associated with this disease, including insufficient disease control, poor health-related quality of life, comorbidities, toxicity of the majority of therapies and diminished survival. Despite the substantial long-term investment of research, clinical activity and resources for identifying new treatments for this disease, only one new therapy, the biological belimumab, has been approved in the past 50 years. Efforts to develop drugs to address these needs are challenged by problems associated with disease heterogeneity, variable disease mechanisms and trial design. This review provides an overview of current and future treatments, discusses challenges in the SLE drug development process and offers recommendations for overcoming these challenges. PMID- 29344387 TI - Repository corticotropin injection in patients with persistently active SLE requiring corticosteroids: post hoc analysis of results from a two-part, 52-week pilot study. AB - Objective: Post hoc analyses evaluated the effectiveness and safety of repository corticotropin injection (RCI) in patients with persistently active SLE over 52 weeks. Methods: Patients were initially randomised to 40 U daily or 80 U every other day RCI (n=26) or placebo (n=12) for the 8-week double-blind period. Completers entered the open-label extension (OLE; n=33) receiving 16, 40 or 80 U RCI 1-3 times/week and were followed through week 52. Outcomes included proportion of responders based on a novel index (resolution of joint or skin activity using hybrid Systemic Lupus Erythematosus Disease Activity Index (hSLEDAI) without any worsening British Isles Lupus Assessment Group (BILAG) scores in other organ systems) or revised novel index (using SLE Responder Index (SRI) definition of BILAG worsening (1A or 2B)), proportion of responders by SRI and changes in total hSLEDAI and BILAG scores. Adverse events and laboratory values were assessed. Results: At week 52, 12.0% (3/25) RCI/RCI patients and 36.4% (4/11) placebo/RCI patients were responders using the novel index. The revised novel responder index demonstrated response rates of 48.0% (12/25) and 54.5% (6/11) in the RCI/RCI and placebo/RCI groups, respectively. Proportions of SRI responders were 40.0% (10/25) and 54.5% (6/11). In the RCI/RCI group, total hSLEDAI and BILAG scores declined from 10.0 and 15.7 at week 0 to 3.5 and 4.6 at week 52, respectively. Reductions in the placebo/RCI group on switching were observed (mean hSLEDAI: 9.1-3.3; BILAG: 13.5-2.6). Other disease activity endpoints also improved in both groups. No new safety signals were observed during the OLE. Conclusions: RCI demonstrated durable effectiveness in patients with persistently active SLE despite moderate-dose corticosteroid therapy. Switching from placebo resulted in reduced disease activity during the OLE. These data provide the foundation for evaluation of RCI in a robustly powered study. PMID- 29344388 TI - Gender-based violence and the role of healthcare professionals. PMID- 29344389 TI - Family members' satisfaction with care and decision-making in intensive care units and post-stay follow-up needs-a cross-sectional survey study. AB - Aim: The aim of this study was to explore family members' satisfaction with care and decision-making during the intensive care units stay and their follow-up needs after the patient's discharge or death. Design: A cross-sectional survey study was conducted. Methods: Family members of patients recently treated in an ICU were participating. The questionnaire contented of background variables, the instrument Family Satisfaction in ICU (FS-ICU 24) and questions about follow-up needs. Descriptive and non-parametric statistics and a multiple linear regression were used in the analysis. Results: A total of 123 (47%) relatives returned the questionnaire. Satisfaction with care was higher scored than satisfaction with decision-making. Follow- up needs after the ICU stay was reported by 19 (17%) of the participants. Gender and length of the ICU stay were shown as factors identified to predict follow-up needs. PMID- 29344390 TI - Job-related stress in psychiatric assistant nurses. AB - Aim: We aimed to clarify how stress among psychiatric assistant nurses (PANs) differed from Registered Nurses (PRNs). Design: Cross-sectional survey study was conducted with PRNs and PANs working in six psychiatric hospitals in Japan. Methods: The Psychiatric Nurse Job Stressor Scale (PNJSS) and the job stressor and stress reaction subscales of the Brief Job Stress Questionnaire measured stress in 68 PANs and 140 PRNs. The results were statistically analysed. Results: Psychiatric assistant nurses had significantly higher scores than PRNs on the job stressor subscales in psychiatric nursing ability, interpersonal relations and in the stress reaction subscales of irritability and somatic symptoms. "Psychiatric nursing ability," "Communication" and "Use of techniques" were associated with almost all stress reactions in PANs than in PRNs. PMID- 29344391 TI - Pilot study: Assessing the effect of continual position monitoring technology on compliance with patient turning protocols. AB - Aim: The study aim was to evaluate if continual patient position monitoring, taking into account self-turns and clinician-assisted turns, would increase the percentage of time a patient's position changed at least every 2 hr. Background: While patient turning has clinical benefits, current models to help staff remember to turn patients, such as "turn clocks" and timers, have not resulted in high compliance with turning protocols. In addition, reminders are based on arbitrary 2-hr windows (such as turning on "even" hours) rather than on individual patient activity, including self-turns. Design: This is a first inpatient, non-randomized, pre-/postintervention study. Methods: Data collection occurred from May 2013-February 2014 on a 39-bed medical unit in a community hospital. Baseline patient turning data were recorded by a sensor; however, the patient data were not displayed at the nurses' station to establish compliance with the hospital's turning protocol. Postintervention, patient position information was wirelessly displayed on nurses' station computer monitors in real time. A Student t test was used to compare baseline to postintervention "mean time in compliance." Results: Data from 138 patients (N = 7,854 hr of monitoring) were collected. The baseline phase yielded 4,322 hr of position monitoring data and the postintervention phase yielded 3,532 hr of data. Statistically significant improvement was demonstrated in the percentage of time a patient's position changed at least every 2 hr from baseline to postintervention. PMID- 29344392 TI - Evaluating the parent-adolescent communication toolkit: Usability and preliminary content effectiveness of an online intervention. AB - Aim: This study aimed to assess the Parent-Adolescent Communication Toolkit, an online intervention designed to help improve parent communication with their adolescents. Participant preferences for two module delivery systems (sequential and unrestricted module access) were identified. Design: Usability assessment of the PACT intervention was completed using pre-test and posttest comparisons. Usability data, including participant completion and satisfaction ratings were examined. Methods: Parents (N = 18) of adolescents were randomized to a sequential or unrestricted chapter access group. Parent participants completed pre-test measures, the PACT intervention and posttest measures. Participants provided feedback for the intervention to improve modules and provided usability ratings. Adolescent pre- and posttest ratings were evaluated. Results: Usability ratings were high and parent feedback was positive. The sequential module access groups rated the intervention content higher and completed more content than the unrestricted chapter access group, indicating support for the sequential access design. Parent mean posttest communication scores were significantly higher (p < .05) than pre-test scores. No significant differences were detected for adolescent participants. Findings suggest that the Parent-Adolescent Communication Toolkit has potential to improve parent-adolescent communication but further effectiveness assessment is required. PMID- 29344393 TI - Effect of standardized nursing language continuing education programme on nurses' documentation of care at University College Hospital, Ibadan. AB - Aim: The study assessed the documentation of nursing care before, during and after the Standardized Nursing Language Continuing Education Programme (SNLCEP). It evaluates the differences in documentation of nursing care in different nursing specialty areas and assessed the influence of work experience on the quality of documentation of nursing care with a view to provide information on documentation of nursing care. The instrument used was an adapted scoring guide for nursing diagnosis, nursing intervention and nursing outcome (Q-DIO). Design: Retrospective record reviews design was used. Methods: A total of 270 nursing process booklets formed the sample size. From each ward, 90 booklets were selected in this order: 30 booklets before the SNLCEP, 30 booklets during SNLCEP and 30 booklets after SNLCEP. Results: Overall, the study concluded that the SNLCEP had a significant effect on the quality of documentation of nursing care using Standardized Nursing Languages. PMID- 29344394 TI - Patient participation, a prerequisite for care: A grounded theory study of healthcare professionals' perceptions of what participation means in a paediatric care context. AB - Aims: To explore healthcare professionals' perceptions of what patient participation means in a paediatric care context . Design: A qualitative explorative design with grounded theory. Methods: Fifteen healthcare professionals who worked in paediatric care settings were either interviewed or asked open-ended questions in a survey, during December 2015-May 2016. Grounded theory was used as a method. Results: The study results provide a theoretical conceptualization of what patient participation meant for healthcare professionals in paediatric care and how participation was enabled. The core category "participation a prerequisite for care" emerged as the main finding explaining the concept as ethical, practical and integrated in the care givers way of working. However, the concept was implicit in the organization. Four additional categories illustrated the healthcare professionals' different strategies used to enhance patient participation; "meeting each child where the child is," "building a relationship with the child," "showing respect for each individual child" and "making the most of the moment." PMID- 29344395 TI - Nurse anaesthetist students' experiences of patient dignity in perioperative practice-a hermeneutic study. AB - Aim: The aim of the study was to describe how nurse anaesthetist students experienced patient dignity in perioperative practice. Design: A hermeneutical design and the critical incident technique were used to obtain experiences from practice. Method: In the Autumn of 2015, after participating in a mandatory lecture on ethics, 23 nurse anaesthetist students reported their experiences and interpretation concerning violation and preservation of patients' dignity in the operating theatre. The text, which was a compilation of descriptions of 35 incidents, was analysed by using hermeneutical text interpretation. Findings: The text revealed three main themes preserving patients' dignity: allocating time to the patient, inviting the patient to participate and shielding the patient's body. Furthermore, three main themes of dignity violation were identified: alienation, backbiting and violation of intimate sphere. Conclusion: Discussion and reflection based on the personal experience of the students during their practice are ways to strengthen ethical awareness and promote an ethical and dignified caring culture. PMID- 29344396 TI - Adversity of prolonged extreme cold exposure among adult clients diagnosed with coronary artery diseases: a primer for recommending community health nursing intervention. AB - Aim: This research study explored the lived experiences of adults diagnosed with Coronary Artery Disease (CAD) when exposed to a prolonged period of extreme cold. Design: This research study utilized descriptive qualitative research design. Methods: Face-to-face interview sessions with audio recording were conducted. There were 30 informants who participated in the study. Descriptive phenomenology with Colaizzi's method of data analysis was used. Results: Results revealed three themes, namely: (i) elucidating cold exposure; (ii) challenges of cold exposure; and (iii) translating adverse exposure to self-management. The results further revealed the significance of nursing health care especially to health promotion, disease prevention and health restoration especially in community setting. Conclusion: In conclusion, manifestations of CAD are triggered when exposed to a prolonged period of extremely low environmental temperature. PMID- 29344397 TI - A cross-sectional study of stress and its sources among health professional students at Makerere University, Uganda. AB - Aim: To assess prevalence of stress and its sources among undergraduate health professional students at Makerere University. Design: This was a descriptive cross-sectional study using quantitative methods of data collection. Methods: The study was conducted among 258 undergraduate health professional students (Medical, Dental and, Nursing students) at Makerere University. From each programme, students were recruited proportionately, while being selected conveniently from each year of study. Stress was measured using the General Health Questionnaire 12 and stressors assessed using a questionnaire developed from literature. After obtaining ethics approval, data were collected from consenting students. Data collected were analysed using SPSS statistical program. Results: The prevalence of stress was found to be 57.4% and stressors of academic and psychosocial origin were most frequently reported. The top stressors included; academic curriculum (38%), dissatisfaction with class lectures (30.9%), long distance walk (29.5%), lack of time for recreation (28.9%), performance in examination (28.3%), lack of special guidance from faculty (26.7%) and high parental expectations (26.7%). PMID- 29344398 TI - Exploring nurse managers' perception of using the RAFAELA system as a management tool in a Norwegian hospital setting. AB - Aim: The aim of the study, being part of a Norwegian evaluation project of the RAFAELA system, was to explore nurse managers' perception of the RAFAELA system as a management tool in a Norwegian hospital setting. Design: We applied an explorative qualitative design using focus group interviews. Methods: Two focus group interviews were performed with 12 nurses in different management positions during autumn 2013. The principles of qualitative content analysis were used for analysing data. Results: Three themes emerged. The informants experienced the RAFAELA system to be a basis for a precise and common langue. Furthermore, the informants considered it to be a system defining quality standards of nursing care. Finally, the RAFAELA system provided daily documentation of nursing intensity and thus was considered an important management tool for balancing patient needs with appropriate staff. PMID- 29344399 TI - Contested discourses and culture sensitivity: Norwegian nursing students' experience of clinical placement in Nicaragua. AB - Aim: The purpose of this study was to gain understanding of Norwegian students' practical experience of "culture sensitivity." Design: Using focus-group interviews and individual written assignments, we draw on a Foucauldian-inspired approach to analyse nursing students' narratives about their clinical placement in Nicaragua. Method: Seven third-year bachelor nursing students enrolled in a clinical placement programme on the Caribbean coast in Nicaragua and participated in focus-group interviews. Interviews were conducted prior to their departure to Nicaragua and after their return to Norway. Other sources of data included learning objectives for clinical placement, written individual assignments with students' reflections about their experiences and achievement of learning objectives. Results: Students expressed gradually increased awareness about the nursing discourses and power relations shaping clinical encounters throughout their learning trajectory in clinical placement. They became more aware of the politics of nursing practices through their experiences of clashes between different nursing discourses. PMID- 29344400 TI - The nursing legacy of the Korea Sisters. AB - Aim: During the Korean War (1950-1953), the Norwegian government sent a Mobile Army Surgical Hospital (MASH) to support the efforts of the United Nations (UN) Army. During the war, 111 Norwegian nurses served in seven contingents, each 6 month, at the Norwegian Field Hospital in Korea. The nurses were nicknamed "The Korea Sisters". The aim of this study is to explore the impact and influence of their wartime nursing on Norwegian post-Korean-War nursing. Design: Qualitative. Methods: The study uses several historical research approaches. Interview, archival search, search in nursing periodicals, contemporary magazines and nursing text books. Result: The nursing legacy of The Korea Sisters can be found in changes in general nursing, uniform education of theatre nurses, uniform education of anaesthetist nurses and in humanitarian work. PMID- 29344401 TI - Protocol for Moving On: a randomized controlled trial to increase outcome expectations and exercise among breast cancer survivors. AB - Aim: The aim of this study was to test the feasibility and fidelity of an intervention, Moving On, aimed to increase outcome expectations OEs (i.e. what one expects to obtain or avoid as a result of a behaviour) and exercise among breast cancer survivors. Design: Randomized controlled trial. Methods: Intervention arm participants will be given a theory-guided booklet that was co created by the research team and three physically active breast cancer survivors who exercise to manage late and long-term treatment effects. Attention control arm participants will be given a similar booklet focused on diet. Participants will have 1 week to complete reading, writing and reflecting activities in the booklets. Study outcomes will be measured through online surveys; exercise will also be measured objectively with a Fitbit(r). Four weeks postintervention, participants' thoughts about the usefulness, strengths and weakness of the intervention booklet will be assessed. OEs and exercise will be measured at baseline, 4-, 8- and 12-week postintervention. PMID- 29344402 TI - Young Asian men with diabetes have the highest risk for acute coronary events: retrospective cohort analyses. AB - Objective: To understand the ethnic differences in coronary heart disease risk among inpatients with diabetes following acute coronary syndrome. Design: Single centre retrospective cohort-analysis of patients with type II diabetes over a six year period receiving standard care. Setting: Birmingham, UK. Participants: One thousand and one hundred and five patients with type II diabetes from a multi ethnic background. Main outcome measures: Odds ratios of coronary heart disease events among three ethnic groups. Results: The prevalence of coronary heart disease events was 20.7% in Asian, 13.2% in Caucasian and 7.7% in Afro-Caribbean patients. Asian patients were younger at diagnosis of diabetes (-5.1 years p < 0.001 versus Afro-Caribbeans and -7.1 years p < 0.001 versus Caucasians). The mean number of events was highest amongst Asian (1.2) compared to Caucasian (1.1) and Afro-Caribbean (1.0) patients (p = 0.04). The mean age at first event was 61.3 years for Asians, 62.5 years and 65.8 for Afro-Caribbeans and Caucasians, respectively (analysis of variance F[2,131] = 2.36 p = 0.09). Un-adjusted odds ratios for at least one coronary heart disease event were highest among Asian men (OR 5.04; 95% CI 2.31-11.01; p < 0.0001) with Afro-Caribbean women as baseline (OR 1.0). The odds ratios remain largely unchanged (1.0 Afro-Caribbeans [baseline], 1.27 [p = 0.56] Caucasians and 3.2 [p = 0.001] for Asians) when corrected for age, gender, duration of diabetes, insulin dependency, mean low density lipoprotein-cholesterol, triglycerides and high-density lipoprotein cholesterol, mean glycated haemoglobin, mean systolic and diastolic blood pressure (logistic regression; ROC: 79% AUC). Afro-Caribbean patients had the highest mean high-density lipoprotein-cholesterol (1.6 mmol/L) and the lowest risk for coronary heart disease events. Conclusions: Asian patients were younger at their first event and diagnosed earlier with diabetes. Asian men had the highest risk of coronary heart disease event which correlated with the lowest levels of high-density lipoprotein-cholesterol. PMID- 29344403 TI - Maternal morbidity and mortality associated with retroperitoneal haematomas in pregnancy. AB - Retroperitoneal haematomas in obstetrics are uncommon. The causes and pathogenesis of retroperitoneal haematomas lack clarity and the aim of this review is to recognise retroperitoneal haematomas as a separate entity from commonly seen vaginal and pelvic haematomas. It is time to raise awareness among obstetricians to recognise retroperitoneal haematomas as an important cause of maternal morbidity and mortality which requires high clinical suspicion and multidisciplinary input. As retroperitoneal haematomas are rare but can cause serious threat to maternal wellbeing, resources should be directed towards their management. Existing guidelines of maternal collapse and morbidity during pregnancy and puerperium need to include retroperitoneal haematomas as one of the important causes of maternal shock or morbidity. New learning pathways should be opted for to increase awareness of retroperitoneal haematomas among obstetricians enabling them to reflect on their implications while managing retroperitoneal haematomas. Management of retroperitoneal haematomas is complex and continues to improve with advancements in the investigative strategies, treatment options and multidisciplinary involvement. PMID- 29344404 TI - Unleashing the tiger - iatrogenic autoimmunity from cancer immunotherapy drugs. AB - Immune checkpoint inhibitors can lead to the development of organ and non-organ specific immune related adverse events. PMID- 29344406 TI - Research protocol: investigating the feasibility of a group self-management intervention for stroke (the GUSTO study). AB - Background: Life after stroke can be an ongoing struggle with over half of all survivors reporting unmet emotional and social needs. In the United Kingdom's (UK) national clinical guidelines for stroke, self-management is suggested as one approach which can support long-term needs. In the UK NHS, self-management interventions are delivered in various ways. Regardless of the delivery mechanism, a tailored approach and ways to integrate peer support are advocated. Group delivery offers a platform for peer support and has the potential to remain individualised. However, before the efficacy of a group self-management intervention can be tested, the feasibility must be explored. This research investigates the feasibility of a GroUp Self-management intervention for sTrOke (GUSTO). Methods: A randomised waitlist control design will be used to investigate the feasibility of a group self-management intervention adapted from an existing one-to-one intervention called Bridges. A mixed methods approach will be used. Qualitative work will capture participant experience, while quantitative work will allow preliminary comparison between the intervention and waitlist groups (between subjects) and pre-post intervention measures (within subjects). Interviews will be conducted with stroke survivors and focus groups with family and friends to assess acceptability of the intervention. Discussion: There is a growing interest in group-based self-management interventions for stroke as a method of supporting stroke survivors' ongoing unmet needs. This is an area with limited research to date. This study will inform design of a fully powered trial which would assess the efficacy of a group self-management intervention following stroke. Trial registration: ISRCTN19867168. PMID- 29344405 TI - Lee Silverman Voice Treatment versus standard speech and language therapy versus control in Parkinson's disease: a pilot randomised controlled trial (PD COMM pilot). AB - Background: Speech-related problems are common in Parkinson's disease (PD), but there is little evidence for the effectiveness of standard speech and language therapy (SLT) or Lee Silverman Voice Treatment (LSVT LOUD(r)). Methods: The PD COMM pilot was a three-arm, assessor-blinded, randomised controlled trial (RCT) of LSVT LOUD(r), SLT and no intervention (1:1:1 ratio) to assess the feasibility and to inform the design of a full-scale RCT. Non-demented patients with idiopathic PD and speech problems and no SLT for speech problems in the past 2 years were eligible. LSVT LOUD(r) is a standardised regime (16 sessions over 4 weeks). SLT comprised individualised content per local practice (typically weekly sessions for 6-8 weeks). Outcomes included recruitment and retention, treatment adherence, and data completeness. Outcome data collected at baseline, 3, 6, and 12 months included patient-reported voice and quality of life measures, resource use, and assessor-rated speech recordings. Results: Eighty-nine patients were randomised with 90% in the therapy groups and 100% in the control group completing the trial. The response rate for Voice Handicap Index (VHI) in each arm was >= 90% at all time-points. VHI was highly correlated with the other speech-related outcome measures. There was a trend to improvement in VHI with LSVT LOUD(r) (difference at 3 months compared with control: - 12.5 points; 95% CI - 26.2, 1.2) and SLT (difference at 3 months compared with control: - 9.8 points; 95% CI - 23.2, 3.7) which needs to be confirmed in an adequately powered trial. Conclusion: Randomisation to a three-arm trial of speech therapy including a no intervention control is feasible and acceptable. Compliance with both interventions was good. VHI and other patient-reported outcomes were relevant measures and provided data to inform the sample size for a substantive trial. Trial registration: International Standard Randomised Controlled Trial Number Register: ISRCTN75223808. registered 22 March 2012. PMID- 29344407 TI - TPF induction chemotherapy increases PD-L1 expression in tumour cells and immune cells in head and neck squamous cell carcinoma. AB - Background: Antiprogrammed cell death-1/programmed cell death-ligand 1 (PD-1/PD L1) therapies have demonstrated promising activity in advanced head and neck squamous cell carcinoma (HNSCC), with overall response rates of approximately 20% in unselected populations and survival benefit. Whether induction docetaxel, platinum and fluorouracil (TPF) modifies PD-L1 expression or tumour immune infiltrates is unknown. Patients and methods: Patients with locally advanced HNSCC treated at Gustave Roussy (Villejuif, France) between 2006 and 2013 by induction TPF followed by surgery were retrospectively considered. Patients with paired samples (pre-TPF and post-TPF) were kept for further analysis. PD-L1 expression was quantified by immunohistochemistry according to a validated protocol. The objective of the study was to compare PD-L1 expression on tumour cells (TC) and immune cells (IC) (positivity threshold of >=5%) before and after TPF. CD8+ and Foxp3+ lymphocytes densities before and after TPF were also quantified. Results: Out of 313 patients receiving induction TPF, 86 underwent surgery; paired samples were available for 21 of them. Baseline PD-L1 expression was >=5% in two and five samples for TC and IC, respectively. A significant increase of PD-L1 expression was observed after TPF, with 15 samples (71%) presenting a positive staining in IC after induction chemotherapy (P=0.003; Wilcoxon rank-sum test) and eight samples (38%) in TC (P=0.005; Wilcoxon rank-sum test). Tumour-infiltrating CD8+ mean densities also significantly increased post TPF (P=0.01). There was no significant difference in Foxp3+ expression, CD8/Foxp3 ratio or correlation with outcome. Conclusion: TPF induction chemotherapy in advanced HNSCC increases PD-L1 positivity on tumour-infiltrating ICs, as well as CD8+ lymphocytes density. These results warrant independent validation on larger datasets and might help therapeutic strategy in advanced HNSCC. PMID- 29344408 TI - Differential research impact in cancer practice guidelines' evidence base: lessons from ESMO, NICE and SIGN. AB - Background: This is an appraisal of the impact of cited research evidence underpinning the development of cancer clinical practice guidelines (CPGs) by the professional bodies of the European Society for Medical Oncology (ESMO), the National Institute for Health and Care Excellence (NICE) and the Scottish Intercollegiate Guidelines Network (SIGN). Methods: A total of 101 CPGs were identified from ESMO, NICE and SIGN websites across 13 cancer sites. Their 9486 cited references were downloaded from the Web of Science Clarivate Group database, analysed on Excel (2016) using Visual Basic Application macros and imported onto SPSS (V.24.0) for statistical tests. Results: ESMO CPGs mostly cited research from Western Europe, while the NICE and SIGN ones from the UK, Canada, Australia and Scandinavian countries. The ESMO CPGs cited more recent and basic research (eg, drugs treatment), in comparison with NICE and SIGN CPGs where older and more clinical research (eg, surgery) papers were referenced. This chronological difference in the evidence base is also in line with that ESMO has a shorter gap between the publication of the research and its citation on the CPGs. It was demonstrated that ESMO CPGs report more chemotherapy research, while the NICE and SIGN CPGs report more surgery, with the results being statistically significant. Conclusions: We showed that ESMO, NICE and SIGN differ in their evidence base of CPGs. Healthcare professionals should be aware of this heterogeneity in effective decision-making of tailored treatments to patients, irrespective of geographic location across Europe. PMID- 29344409 TI - Immunotherapy in lung cancer. PMID- 29344410 TI - Traditional Chinese Medicine and Aging Intervention. PMID- 29344411 TI - Emerging Roles of Ganoderma Lucidum in Anti-Aging. AB - Ganoderma lucidum is a white-rot fungus that has been viewed as a traditional Chinese tonic for promoting health and longevity. It has been revealed that several extractions from Ganoderma lucidum, such as Ethanol extract, aqueous extract, mycelia extract, water soluble extract of the culture medium of Ganoderma lucidum mycelia, Ganodermasides A, B, C, D, and some bioactive components of Ganoderma lucidum, including Reishi Polysaccharide Fraction 3, Ganoderma lucidum polysaccharides I, II, III, IV, Ganoderma lucidum peptide, Ganoderma polysaccharide peptide, total G. lucidum triterpenes and Ganoderic acid C1 could exert lifespan elongation or related activities. Although the use of Ganoderma lucidum as an elixir has been around for thousands of years, studies revealing its effect of lifespan extension are only the tip of the iceberg. Besides which, the kinds of extractions or components being comfrimed to be anti aging are too few compared with the large amounts of Ganoderma lucidum extractions or constituients being discovered. This review aims to lay the ground for fully elucidating the potential mechanisms of Ganoderma lucidum underlying anti-aging effect and its clinical application. PMID- 29344412 TI - Ginseng: An Nonnegligible Natural Remedy for Healthy Aging. AB - Aging is an irreversible physiological process that affects all humans. Numerous theories have been proposed to regarding the process from a Western medicine perspective; however, ancient Chinese medicine practices and theories have increasingly gained attention, particularly ginseng, a grass that has been studied for the anti-aging properties of its active constituents. This review seeks to analyze current data on ginseng and its anti-aging properties. The plant species, characteristics, and active ingredients will be introduced. The main part of this review is focused on ginseng and its active components with regards to their effects on prolonging lifespan, the regulation of multiple organ systems including cardiovascular, nervous, immune, and skin, as well as the anti-oxidant and anti-inflammatory properties. The molecular mechanisms of these properties elucidated via various studies are summarized as further evidence of the anti aging effects of ginseng. PMID- 29344413 TI - Therapeutic Potential and Cellular Mechanisms of Panax Notoginseng on Prevention of Aging and Cell Senescence-Associated Diseases. AB - Owing to a dramatic increase in average life expectancy, most countries in the world are rapidly entering an aging society. Therefore, extending health span with pharmacological agents targeting aging-related pathological changes, are now in the spotlight of gerosciences. Panax notoginseng (Burk.) F. H. Chen, a species of the genus Panax, has been called the "Miracle Root for the Preservation of Life," and has long been used as a Chinese herb with magical medicinal value. Panax notoginseng has been extensively employed in China to treat microcirculatory disturbances, inflammation, trauma, internal and external bleeding due to injury, and as a tonic. In recent years, with the deepening of the research pharmacologically, many new functions have been discovered. This review will introduce its pharmacological function on lifespan extension, anti vascular aging, anti-brain aging, and anti-cancer properties, aiming to lay the ground for fully elucidating the potential mechanisms of Panax notoginseng's anti aging effect to promote its clinical application. PMID- 29344414 TI - Herba Cistanches: Anti-aging. AB - The Cistanche species ("Rou Cong Rong" in Chinese) is an endangered wild species growing in arid or semi-arid areas. The dried fleshy stem of Cistanches has been used as a tonic in China for many years. Modern pharmacological studies have since demonstrated that Herba Cistanches possesses broad medicinal functions, especially for use in anti-senescence, anti-oxidation, neuroprotection, anti inflammation, hepatoprotection, immunomodulation, anti-neoplastic, anti osteoporosis and the promotion of bone formation. This review summarizes the up to-date and comprehensive information on Herba Cistanches covering the aspects of the botany, traditional uses, phytochemistry and pharmacology, to lay ground for fully elucidating the potential mechanisms of Herba Cistanches' anti-aging effect and promote its clinical application as an anti-aging herbal medicine. PMID- 29344415 TI - Rhizoma Coptidis and Berberine as a Natural Drug to Combat Aging and Aging Related Diseases via Anti-Oxidation and AMPK Activation. AB - Aging is the greatest risk factor for human diseases, as it results in cellular growth arrest, impaired tissue function and metabolism, ultimately impacting life span. Two different mechanisms are thought to be primary causes of aging. One is cumulative DNA damage induced by a perpetuating cycle of oxidative stress; the other is nutrient-sensing adenosine monophosphate-activated protein kinase (AMPK) and rapamycin (mTOR)/ ribosomal protein S6 (rpS6) pathways. As the main bioactive component of natural Chinese medicine rhizoma coptidis (RC), berberine has recently been reported to expand life span in Drosophila melanogaster, and attenuate premature cellular senescence. Most components of RC including berberine, coptisine, palmatine, and jatrorrhizine have been found to have beneficial effects on hyperlipidemia, hyperglycemia and hypertension aging related diseases. The mechanism of these effects involves multiple cellular kinase and signaling pathways, including anti-oxidation, activation of AMPK signaling and its downstream targets, including mTOR/rpS6, Sirtuin1/ forkhead box transcription factor O3 (FOXO3), nuclear factor erythroid-2 related factor-2 (Nrf2), nicotinamide adenine dinucleotide (NAD+) and nuclear factor-kappaB (NF kappaB) pathways. Most of these mechanisms converge on AMPK regulation on mitochondrial oxidative stress. Therefore, such evidence supports the possibility that rhizoma coptidis, in particular berberine, is a promising anti-aging natural product, and has pharmaceutical potential in combating aging-related diseases via anti-oxidation and AMPK cellular kinase activation. PMID- 29344416 TI - Lycium Barbarum: A Traditional Chinese Herb and A Promising Anti-Aging Agent. AB - Lycium barbarum has been used in China for more than 2,000 years as a traditional medicinal herb and food supplement. Lycium barbarum contains abundant Lycium barbarum polysaccharides (LBPs), betaine, phenolics, carotenoids (zeaxanthin and beta-carotene), cerebroside, 2-O-beta-d-glucopyranosyl-l-ascorbic acid (AA 2betaG), beta-sitosterol, flavonoids and vitamins (in particular, riboflavin, thiamine, and ascorbic acid). LBPs are the primary active components of Lycium barbarum. In this review, we discuss the pharmacological activities of LBPs and other major components. They have been reported to mediate significant anti-aging effects, through antioxidant, immunoregulative, anti-apoptotic activities and reducing DNA damage. Thus, the basic scientific evidence for anti-aging effects of LBPs is already available. However, additional studies are needed to understand mechanisms by which LBPs mediate anti-aging properties. Novel findings from such studies would likely pave the way for the clinical application of traditional chinese medicine Lycium barbarum in modern evidence-based medicine. PMID- 29344417 TI - The Effect of Traditional Chinese Medicine on Neural Stem Cell Proliferation and Differentiation. AB - Neural stem cells (NSCs) are special types of cells with the potential for self renewal and multi-directional differentiation. NSCs are regulated by multiple pathways and pathway related transcription factors during the process of proliferation and differentiation. Numerous studies have shown that the compound medicinal preparations, single herbs, and herb extracts in traditional Chinese medicine (TCM) have specific roles in regulating the proliferation and differentiation of NSCs. In this study, we investigate the markers of NSCs in various stages of differentiation, the related pathways regulating the proliferation and differentiation, and the corresponding transcription factors in the pathways. We also review the influence of TCM on NSC proliferation and differentiation, to facilitate the development of TCM in neural regeneration and neurodegenerative diseases. PMID- 29344418 TI - Advances in the Studies of Ginkgo Biloba Leaves Extract on Aging-Related Diseases. AB - The prevalence of degenerative disorders in public health has promoted in-depth investigations of the underlying pathogenesis and the development of new treatment drugs. Ginkgo biloba leaves extract (EGb) is obtained from Ginkgo biloba leaves and has been used for thousands of years. In recent decades, both basic and clinical studies have established the effects of EGb. It is widely used in various degenerative diseases such as cerebrovascular disease, Alzheimer's disease, macroangiopathy and more. Here, we reviewed several pharmacological mechanisms of EGb, including its antioxidant properties, prevention of mitochondrial dysfunctions, and effect on apoptosis. We also described some clinical applications of EGb, such as its effect on neuro and cardiovascular protection, and anticancer properties. The above biological functions of EGb are mainly focused on aging-related disorders, but its effect on other diseases remains unclear. Thus, through this review, we aim to encourage further studies on EGb and discover more potential applications. PMID- 29344419 TI - Dendrobium: Sources of Active Ingredients to Treat Age-Related Pathologies. AB - Dendrobium represents one of the most important orchid genera, ornamentally and medicinally. Dendrobiums are sympodial epiphytic plants, which is a name they are worthy of, the name coming from Greek origin: "dendros", tree, and "bios", life. Dendrobium species have been used for a thousand years as first-rate herbs in traditional Chinese medicine (TCM). They are source of tonic, astringent, analgesic, antipyretic, and anti-inflammatory substances, and have been traditionally used as medicinal herbs in the treatment of a variety of disorders, such as, nourishing the stomach, enhancing production of body fluids or nourishing Yin. The Chinese consider Dendrobium as one of the fifty fundamental herbs used to treat all kinds of ailments and use Dendrobium tonic for longevity. This review is focused on main research conducted during the last decade (2006 2016) on Dendrobium plants and their constituents, which have been subjected to investigations of their pharmacological effects involving anticancer, anti diabetic, neuroprotective and immunomodulating activities, to report their undeniable potential for treating age-related pathologies. PMID- 29344420 TI - The Effects of Baicalin and Baicalein on Cerebral Ischemia: A Review. AB - Ischemic stroke, producing a high mortality and morbidity rate, is a common clinical disease. Enhancing the prevention and control of ischemic stroke is particularly important. Baicalin and its aglycon baicalein are flavonoids extracted from Scutellaria baicalensis, an important traditional Chinese herb. In recent years, a growing body of evidences has shown that baicalin and baicalein could be effective in the treatment of cerebral ischemia. Pharmacokinetic studies have shown that baicalin could penetrate the blood-brain barrier and distribute in cerebral nuclei. Through a variety of in vitro and in vivo models of ischemic neuronal injury, numerous studies have demonstrated that baicalin and baicalein have salutary effect for neuroprotection. Especially, the studies on the pharmacological mechanism showed that baicalin and baicalein have several pharmacological activities, which include antioxidant, anti-apoptotic, anti inflammatory and anti-excitotoxicity effects, protection of the mitochondria, promoting neuronal protective factors expression and adult neurogenesis effects and many more. This review focuses on the neuroprotective effects of baicalin and baicalein in ischemia or stroke-induced neuronal cell death. We aimed at collecting all important information regarding the neuroprotective effect and its pharmacological mechanism of baicalin and baicalein in various in vivo and in vitro experimental models of ischemic neuronal injury. PMID- 29344422 TI - The Effects of Physical Training are Varied and Occur in an Exercise Type Dependent Manner in Elderly Men. AB - Regular exercise can decrease the deleterious effects of aging and limit the development and progression of chronic disease in elderly people, depending on the type, intensity, frequency, and duration of exercise. This study aimed to investigate the potential protective effects of different physical training programs on oxidative stress parameters and inflammatory and neurotrophic mediators in the serum of elderly men. Healthy male volunteers [60 to 80 years; n=55] were divided into four groups: control [Ctr, n=14], aerobic training on dry land [ATdl, n=12]; and combined training on dry land [CTdl, n=12] or in water [CTw, n=17]. The training protocols were performed over 8 weeks, three times per week. Each 1 h session included 5 min warming-up exercise, 50 min specific training [aerobic, strength, or combined], and 5 min stretching. Blood samples were drawn 72 h before [baseline] the beginning of the 8 weeks' protocol and 48 h after the last training session, processed, and the serum was aliquoted and stored at -70 degrees C until biochemical assessment of oxidative damage, antioxidant system and neurotrophic, growth and inflammatory factors. Elevated BDNF or IGF-1 levels were observed in the ATdl or CTdl groups, respectively. Overall oxidative stress parameters were improved including reduced lipid oxidative damage and increased thioredoxin reductase and glutathione peroxidase activities and total glutathione. Significant decreases in the inflammatory mediators IL-6 and IL-8 were observed; IL-6 was more susceptible to the effects of type of physical training. Thus, the effects of training in elderly men vary in an exercise type-dependent manner. PMID- 29344424 TI - Letters to the Editor. PMID- 29344423 TI - Age-Related Gray and White Matter Changes in Normal Adult Brains. AB - Normal aging is associated with both structural changes in many brain regions and functional declines in several cognitive domains with advancing age. Advanced neuroimaging techniques enable explorative analyses of structural alterations that can be used as assessments of such age-related changes. Here we used voxel based morphometry (VBM) to investigate regional and global brain volume differences among four groups of healthy adults from the IXI Dataset: older females (OF, mean age 68.35 yrs; n=69), older males (OM, 68.43 yrs; n=66), young females (YF, 27.09 yrs; n=71), and young males (YM, 27.91 yrs; n=71), using 3D T1 weighted MRI data. At the global level, we investigated the influence of age and gender on brain volumes using a two-way analysis of variance. With respect to gender, we used the Pearson correlation to investigate global brain volume alterations due to age in the older and young groups. At the regional level, we used a flexible factorial statistical test to compare the means of gray matter (GM) and white matter (WM) volume alterations among the four groups. We observed different patterns in both the global and regional GM and WM alterations in the young and older groups with respect to gender. At the global level, we observed significant influences of age and gender on global brain volumes. At the regional level, the older subjects showed a widespread reduction in GM volume in regions of the frontal, insular, and cingulate cortices compared to the young subjects in both genders. Compared to the young subjects, the older subjects showed a widespread WM decline prominently in the thalamic radiations, in addition to increased WM in pericentral and occipital areas. Knowledge of these observed brain volume differences and changes may contribute to the elucidation of mechanisms underlying aging as well as age-related brain atrophy and disease. PMID- 29344421 TI - Anti-Aging Implications of Astragalus Membranaceus (Huangqi): A Well-Known Chinese Tonic. AB - Owing to a dramatic increase in average life expectancy and the Family Planning program of the 1970s - 1990s, China is rapidly becoming an aging society. Therefore, the investigation of healthspan-extending drugs becomes more urgent. Astragalus membranaceus (Huangqi) is a major medicinal herb that has been commonly used in many herbal formulations in the practice of traditional Chinese medicine (TCM) to treat a wide variety of diseases and body disorders, or marketed as life-prolonging extracts for human use in China, for more than 2000 years. The major components of Astragalus membranaceus are polysaccharides, flavonoids, and saponins. Pharmacological research indicates that the extract component of Astragalus membranaceus can increase telomerase activity, and has antioxidant, anti-inflammatory, immunoregulatory, anticancer, hypolipidemic, antihyperglycemic, hepatoprotective, expectorant, and diuretic effects. A proprietary extract of the dried root of Astragalus membranaceus, called TA-65, was associated with a significant age-reversal effect in the immune system. Our review focuses on the function and the underlying mechanisms of Astragalus membranaceus in lifespan extension, anti-vascular aging, anti-brain aging, and anti-cancer effects, based on experimental and clinical studies. PMID- 29344425 TI - A Case of Psychosis in a Patient with Secondary Adrenal Insufficiency: A Possible Etiological Role of a Hypocortisolemic-induced Increase in Proinflammatory Cytokines. AB - Adrenal insufficiency is divided into three types based on the etiology of its development. In primary adrenal insufficiency, pathology resides in end-organ failure at the level of the adrenal cortex, while in secondary and tertiary adrenal insufficiency, impairment rests in the pituitary gland and hypothalamus, respectively. Regardless of etiology, adrenal insufficiency results in a hypocortisolemic condition. While the relationship between neuropsychiatric symptoms, especially psychosis, and hypercortisolemia has been extensively documented, the development of hypocortisolemia-induced psychosis is less common. We present a case of secondary adrenal insufficiency caused by a pituitary tumor. During the course of evaluation and treatment, the patient developed a psychotic episode. We will briefly review the condition of adrenal insufficiency and propose how hypocortisolemia can result in psychosis. PMID- 29344426 TI - ZIKA MICROCEPHALY. PMID- 29344427 TI - Top 10 Myths about Telepsychiatry. AB - This ongoing column is dedicated to providing information to our readers on managing legal risks associated with medical practice. We invite questions from our readers. The answers are provided by PRMS, Inc. (www.prms.com), a manager of medical professional liability insurance programs with services that include risk management consultation, education and onsite risk management audits, and other resources to healthcare providers to help improve patient outcomes and reduce professional liability risk. The answers published in this column represent those of only one risk management consulting company. Other risk management consulting companies or insurance carriers may provide different advice, and readers should take this into consideration. The information in this column does not constitute legal advice. For legal advice, contact your personal attorney. Note: The information and recommendations in this article are applicable to physicians and other healthcare professionals so "clinician" is used to indicate all treatment team members. PMID- 29344428 TI - Introduction to Special Issue: Disability, Work and Representation: New Perspectives. PMID- 29344429 TI - Pathway Analysis of Gene Expression of E14 Versus E18 Fetal Fibroblasts. AB - Objective: Fetuses early in gestation heal skin wounds without forming scars. The biological mechanisms behind this process are largely unknown. Fibroblasts, however, are cells known to be intimately involved in wound healing and scar formation. We examined fibroblasts in different stages of development to characterize differences in gene expression that may result in the switch from regenerative wound repair to repair with scarring. Approach: Fibroblasts were isolated and cultured from the back skin of BALB/c wild-type mouse fetuses at embryonic day (E)14 and E18 (n = 10). The fibroblast total RNA was extracted, and microarray analysis was conducted using chips containing 42,000 genes. Significance analysis of microarrays was performed to identify genes with greater than twofold expression difference and a false discovery rate of less than two. Identified genes subsequently underwent enrichment analysis to detect differentially expressed pathways. Results: Two hundred seventy-five genes were differentially expressed between E14 and E18 in fetal fibroblasts. Thirty genes were significantly downregulated and 245 genes were significantly upregulated at E18 compared with E14. Ingenuity pathway analysis identified the top 20 signaling pathways differentially activated in fetal fibroblasts between the E18 and E14 time points. Innovation: To our knowledge, this work represents the first instance where differentially expressed genes and signaling pathways between fetal fibroblasts at E14 and E18 have been studied. Conclusion: The genes and pathways identified here potentially underlie the mechanism behind the transition from fetal wound healing via regeneration to wound healing by repair, and may prove to be key targets for future therapeutics. PMID- 29344430 TI - An Improved Humanized Mouse Model for Excisional Wound Healing Using Double Transgenic Mice. AB - Objective: Splinting full-thickness cutaneous wounds in mice has allowed for a humanized model of wound healing. Delineating the epithelial edge and assessing time to closure of these healing wounds via macroscopic visualization have remained a challenge. Approach: Double transgenic mice were created by crossbreeding K14-Cre and ROSAmT/mG reporter mice. Full-thickness excisional wounds were created in K14-Cre/ROSAmT/mG mice (n = 5) and imaged using both normal and fluorescent light on the day of surgery, and every other postoperative day (POD) until wound healing was complete. Ten blinded observers analyzed a series of images from a single representative healing wound, taken using normal or fluorescent light, to decide the POD when healing was complete. K14 Cre/ROSAmT/mG mice (n = 4) were subsequently sacrificed at the four potential days of rated wound closure to accurately determine the histological point of wound closure using microscopic fluorescence imaging. Results: Average time to wound closure was rated significantly longer in the wound series images taken using normal light, compared with fluorescent light (mean POD 13.6 vs. 11.6, *p = 0.008). Fluorescence imaging of histological samples indicated that reepithelialization was complete at 12 days postwounding. Innovation: We describe a novel technique, using double transgenic mice K14-Cre/ROSAmT/mG and fluorescence imaging, to more accurately determine the healing time of wounds in mice upon macroscopic evaluation. Conclusion: The accuracy by which wound healing can be macroscopically determined in vivo in mouse models of wound healing is significantly enhanced using K14-Cre/ROSAmT/mG double transgenic mice and fluorescence imaging. PMID- 29344431 TI - Noncoding RNAs in Wound Healing: A New and Vast Frontier. AB - Significance: Wound healing requires a highly orchestrated coordination of processes that are not yet fully understood. Therefore, available clinical therapies are thus far limited in their efficacy in preventing and treating both chronic wounds and scars. Current gene-based therapeutics is largely based on our understanding of the protein-coding genome and proteins involved in known wound healing pathways. Recent Advances: Noncoding RNAs such as microRNAs and long noncoding RNAs have recently been found to be significant modulators of gene expression in diverse cellular pathways. Research has now implicated noncoding RNAs in nearly every stage of the wound healing process, suggesting that they may serve as clinical therapeutic targets. Noncoding RNAs are critical regulators in processes such as angiogenesis and cutaneous cell migration and proliferation, including classically described biological pathways previously attributed to mostly protein constituents. Critical Issues: The complexity and diversity of the interactions of noncoding RNAs with their targets and other binding partners require thorough characterization and understanding of their functions before they may be altered to modulate human wound healing pathways. Future Directions: Research in the area of noncoding RNAs continues to rapidly expand our understanding of their potential roles in physiological and pathological wound healing. Coupled with improving technologies to enhance or suppress target noncoding RNA in vivo, these advances hold great promise in the development of new therapies for wound healing. PMID- 29344433 TI - One Click Away: Digital Mentorship in the Modern Era. AB - Mentorship is a valuable component of the career development of junior faculty. The digital era has allowed for greater access to mentors spanning geographic barriers and time zones. This article discusses the concept of digital mentorship, as well as strategies and techniques for developing and supporting a digital mentoring relationship in the modern era. PMID- 29344432 TI - WT1 peptide vaccine in Montanide in contrast to poly ICLC, is able to induce WT1 specific immune response with TCR clonal enrichment in myeloid leukemia. AB - Background: The optimal strategy for vaccination to induce CD8+ T cell responses against WT1 is not known. Methods: A pilot randomized study in HLA-A02+ patients to receive vaccination with WT1 in Montanide or in poly ICLC, a TLR3 agonist, to explore the novel immune adjuvant was conducted. Seven patients were randomized. Four patients received WT1 in Montanide, and three with WT1 in poly ICLC. Five patients were in morphologic remission and two had residual morphologic disease at the study entry. Results: All patients finished the induction phase without any major toxicity except mild transient local injection reaction. One patient on the Montanide arm developed aseptic ulceration at two vaccine sites which healed without antibiotics. Three of 4 patients on the Montanide arm had a decreased expression of WT1 after WT1 vaccination, and two of them demonstrated generation of WT1-specific cytotoxic CD8+ T cell responses with biased TCR beta chain enrichment. In contrast, no obvious WT1-specific immune responses were detected in two patients on the poly ICLC arm, nor was there clonal enrichment by TCR alpha/beta sequencing; however, these patients did also have decreased WT1 expression and remained in remission several years after the initiation of treatment. Conclusions: WT1 peptide vaccine with Montanide as an adjuvant induces detectable WT1-specific CD8+ T cell responses with clonal TCR enrichment, which may be capable of controlling leukemia recurrence in the setting of minimal residual disease. Poly ICLC may induce anti-leukemic activity in the absence of detectable WT1 specific CD8+ T cell responses.Trial registration NCT01842139, 7/3/2012 retrospectively registered; https://clinicaltrials.gov/ct2/show/NCT01842139. PMID- 29344434 TI - Rare Multidrug-Resistant Pulmonary Nocardiosis in AIDS. AB - Nocardiosis is an opportunistic infection in patients with depressed cell mediated immunity. Inhalation is the primary route for exposure via dust particles. Patients with acquired immune deficiency syndrome (AIDS) are at increased risk of disseminated disease. A challenge in the diagnosis of pulmonary nocardiosis is that it can mimic other pulmonary diseases. Nocardia farcinica tends to be a more virulent, multidrug-resistant strain with an increased tendency to disseminate. This report describes a 64-year-old man with AIDS found to have pulmonary nocardiosis that did not respond to standard antibiotic therapy. Further evaluation revealed the virulent, multidrug-resistant Nocardia farcinica species. Targeted antibiotic therapy was initiated, after which the patient had an improvement in pulmonary symptoms. It is important to suspect pulmonary nocardiosis in immunocompromised patients who fail to respond to standard antimicrobial therapy. Susceptibilities should be obtained so that appropriate therapy can be promptly initiated as Nocardia farcinica is highly resistant to multiple antimicrobials. PMID- 29344435 TI - Synchronous Uterine Metastases from Breast Cancer: Case Study and Literature Review. AB - Breast cancer rarely metastasizes to the uterus. Here, we report two breast cancer patients with synchronous metastases to the uterus. Case 1 highlights a 46 year-old female with invasive ductal carcinoma who presented with a breast mass and was found to have uterine enlargement on positron emission tomography (PET) scan. Biopsy revealed a metastatic 4 mm focus of breast cancer in the background of endometrial hyperplasia. Case 2 reports a 62-year-old postmenopausal female diagnosed with lobular carcinoma of the breast following an abnormal screening mammogram. A routine pap smear necessitated further workup, revealing simultaneous endometrial and cervical metastasis. Both patients did not have any gynecologic symptoms and presented a diagnostic challenge. PMID- 29344436 TI - Exploring Laser-Induced Breakdown Spectroscopy as a Potential Tool in Mohs Micrography: A Mini Review. AB - Mohs micrographic surgery is the technique of surgically removing skin tumors by gradually excising thin layers and visualizing under a microscope till a tumor free zone is obtained. During the surgical procedure, visible tumors are surgically removed. During the second stage, if tumor margins are clear with the positive specimen at depth, only depth cavitations need to be done without altering the tumor diameter. Defining the depth during this procedure is a major challenge due to the nonexistence of proper guidelines. Using the laser-induced breakdown spectroscopy (LIBS) technique, depth profiling can be performed precisely, preventing excessive tissue removal and reducing time consumption during the microscopic examination. PMID- 29344437 TI - Rhabdomyolysis in a Patient Taking Both Oxandrolone for Bodybuilding and Methamphetamine. AB - Nonprescription drug use is increasingly prevalent in the United States. We report a case of a 31-year-old male who presented with hallucinations and was found to have rhabdomyolysis. He was consuming oxandrolone for six weeks and ingested methamphetamine the night prior to presentation. With supportive treatment, including intravenous hydration, the patient's mental status returned to baseline and rhabdomyolysis resolved. Our case illustrates the need to understand the interaction between different illicit substances. More research needs to be done to further understand the reactions between different medications as patients consume different combinations of substances. PMID- 29344440 TI - HIV assessment and testing for hospital in-patients: still a weak link in the cascade. PMID- 29344438 TI - New Therapeutic Approaches in Obesity and Metabolic Syndrome Associated with Polycystic Ovary Syndrome. AB - Polycystic ovary syndrome (PCOS) is a pathophysiological disorder affecting reproductive and metabolic indices. PCOS is commonly associated with a high prevalence of insulin resistance and obesity; this association carries an increased risk of developing metabolic syndrome, type 2 diabetes mellitus (T2DM), and cardiovascular disease. Guidelines recommend lifestyle modification, metformin, hormonal contraceptives (HCs), and bariatric surgery as the main treatment options in obese patients with PCOS. Studies are being conducted to test the efficacy of existing treatment options as well as to discover new therapies. This review focuses on the most recent advances in this regard and highlights new hypotheses and emerging studies to give a picture of the latest therapeutic trends in the treatment of obese patients with PCOS. In this respect, much attention is given to the role of inositols, the mediators of insulin action. A deficiency of d-chiro-inositol containing inositol-phospho-glycans may be the basis of insulin resistance frequently seen in PCOS patients. Moreover, evidence suggests the use of statins in obese women with PCOS, but guidelines call for further research. Adiponectin, quercetin, vitamin D, and anti-obesity drugs have also been studied and seem to have a useful role in the treatment of obesity and metabolic syndrome in PCOS. Many trials have been conducted on the use of non-pharmacological therapies. Therapies including resveratrol, acupuncture, and berberine have favorable effects in overweight PCOS patients. However, more research is needed to reveal the clinical complexity of PCOS and develop more effective treatment options. PMID- 29344441 TI - Protecting those who care for others. PMID- 29344439 TI - Regiochemical Control in Triptycene Formation-An Exercise in Subtle Balancing Multiple Factors. AB - Reactions between 1,8-dichloroanthracenes with substituents in position 10 and ortho-chloroaryne afford mixtures of 1,8,13- (syn) and 1,8,16 trichlorotriptycenes (anti). The syn/anti ratio is dependent on these substituents. Electropositive substituents like SiMe3 and GeMe3 lead to preferred formation of the syn-isomer, whereas CMe3 groups exclusively afford the anti isomer. Different quantum chemical calculations including location of transition states give conflicting results, but indicate the importance of dispersion forces for an at least qualitative prediction of results. The syn-trichlorotriptycenes with SiMe3 and GeMe3 substituents were characterized by using NMR spectroscopy, mass spectrometry, and X-ray diffraction experiments. PMID- 29344442 TI - Active tuberculosis case finding in India: need for introspection. PMID- 29344443 TI - Outcomes of patients treated with individualised anti-tuberculosis regimens in a tertiary care centre in India. PMID- 29344444 TI - Addressing deprivation of liberty, human mobility and tuberculosis in 2018. PMID- 29344446 TI - Global Optimal PEEP for Anesthetized Patients. PMID- 29344445 TI - Comparing Postoperative Complications and Inflammatory Markers Using Total Intravenous Anesthesia Versus Volatile Gas Anesthesia for Pancreatic Cancer Surgery. AB - Objectives: The objective of this study is to evaluate postoperative complications and inflammatory profiles when using a total intravenous anesthesia (TIVA) or volatile gas-opioid (VO) based anesthesia in patients undergoing pancreatic cancer surgery. Methods: Design, retrospective propensity score matched cohort; Setting, major academic cancer hospital; Patients, all patients who had pancreatic surgery between November 2011 and August 2014 were retrospectively reviewed. Propensity score matched patient pairs were formed. A total of 134 patients were included for analysis with 67 matched pairs; Interventions, Patients were categorized according to type of anesthetic used (TIVA or VO). Patients in the TIVA group received preoperative celecoxib, tramadol, and pregabalin in addition to intraoperative TIVA with propofol, lidocaine, ketamine, and dexmedetomidine. The VO-group received a volatile-opioid based anesthetic; Measurements, demographic, perioperative clinical data, platelet lymphocyte ratios, and neutrophil lymphocyte ratios were collected. Complications were graded and collected prospectively and later reviewed retrospectively. Results: Patients receiving TIVA were more likely to have no complication or a lower grade complication than the VO-group (P = 0.014). There were no differences in LOS or postoperative inflammatory profiles noted between the TIVA and VO groups. Conclusions: In this retrospective matched analysis of patients undergoing pancreatic cancer surgery, TIVA was associated with lower grade postoperative complications. Length of hospital stay (LOS) and postoperative inflammatory profiles were not significantly different. PMID- 29344447 TI - Successful Management of Right Ventricular Perforation Associated with a Pacemaker Lead During Off-Pump CABG Surgery: A Case Report. AB - Introduction: Intraoperative right ventricular perforation due to pacing catheter after its successful and uneventful insertion is a rare complication. Here, we present a case of cardiac arrest due to right ventricular perforation associated with a pacemaker lead during off-pump coronary artery bypass graft surgery. Case Presentation: The case was a 68-year-old male, who was admitted to our hospital with retrosternal chest pain. He had a history of implantation of a permanent pacemaker due to symptomatic complete atrioventricular block. Based on angiography, the diagnosis was 3- vessel disease involving the left anterior descending, second obtuse marginal, and right coronary arteries. The right ventricle was perforated by the tip of the permanent pacemaker lead during off pump coronary artery bypass graft surgery. Subsequently, the patient suddenly experienced cardiac arrest and underwent emergency on-pump cardiac surgery. Conclusions: This case showed that in some situations, emergency surgery as a life saving procedure may be required in cardiac perforation due to permanent pacemaker lead even following cardiac arrest. PMID- 29344448 TI - Learning Theories: The Basics to Learn in Medical Education. PMID- 29344449 TI - Motivating Students for Project-based Learning for Application of Research Methodology Skills. AB - Introduction: Project-based learning (PBL) is motivational for students to learn research methodology skills. It is a way to engage and give them ownership over their own learning. Aims and Objectives: The aim of this study is to use PBL for application of research methodology skills for better learning by encouraging an all-inclusive approach in teaching and learning rather than an individualized tailored approach. Methodology: The present study was carried out for MBBS 6th- and 7th-semester students of community medicine. Students and faculties were sensitized about PBL and components of research methodology skills. They worked in small groups. The students were asked to fill the student feedback Questionnaire and the faculty was also asked to fill the faculty feedback Questionnaire. Both the Questionnaires were assessed on a 5 point Likert scale. After submitted projects, document analysis was done. Results: A total of 99 students of the 6th and 7th semester were participated in PBL. About 90.91% students agreed that there should be continuation of PBL in subsequent batches. 73.74% felt satisfied and motivated with PBL, whereas 76.77% felt that they would be able to use research methodology in the near future. Conclusions: PBL requires considerable knowledge, effort, persistence, and self-regulation on the part of the students. They need to devise plans, gather information evaluate both the findings, and their approach. Facilitator plays a critical role in helping students in the process by shaping opportunity for learning, guiding students, thinking, and helping them construct new understanding. PMID- 29344450 TI - Hybrid Tool for Assessment of Professionalism among Dental Undergraduate Students. AB - Context: Of the several methods available for assessment of professionalism, there is still no consensus on an ideal tool for dental undergraduate (UG) students. Aims: The study aims to use a hybrid tool for assessment of professionalism among dental undergraduate students. Settings and Design: Cross sectional design with purposive sampling. Subjects and Methods: All final year UG dental students participated in this study. Evaluation of knowledge about professionalism was through written test. Professional behavior of each final year student in a clinical setting was assessed with a prevalidated questionnaire of multisource feedback (MSF). The scores of written test and the MSF were calculated for each student. Data were analyzed to evaluate scores of knowledge and MSF scores as per assessor category. Correlation between knowledge scores and MSF was evaluated. Student perceptions were taken toward assessment of professionalism. Statistical Analysis Used: Statistical analysis was done using descriptive statistics. Pearson's coefficient was used to determine the correlation between average knowledge scores and the MSF scores. Results: Knowledge scores were significantly more for female students (P < 0.05, t-test). Patients rated the students highest. Correlation between knowledge and MSF scores was found to be statistically significant (Pearson's correlation, P < 0.01). Students gave feedback that assessment of professionalism should be done from the beginning of the clinical years. Conclusions: Evaluation revealed that knowledge toward professionalism correlated with the professional behavior implying association between knowledge and reasons for a particular action. PMID- 29344451 TI - Evaluation of Brainstorming Session as a Teaching-learning Tool among Postgraduate Medical Biochemistry Students. AB - Background: The thrust for postgraduate teaching should be self-directed learning with equal participation by all students in academic discussions. Group discussions involve conduction of the discourse by a leader who guides the discussion as well as points out any wrong information. This discourages quieter students from participation with the fear of rebuke. Brainstorming is devoid of all such fallacies with no judgment and reprimand. Aim: The aim of this study was to use brainstorming as a teaching-learning tool among postgraduate students of medical biochemistry. Materials and Methods: The project was commenced after due approvals from the research and ethical committee. The participants were enrolled after informed consent and sensitization. All the pro forma and questionnaires were duly validated by experts. After piloting and incorporation of the suggestions for improvisation, the main sessions were planned and implemented. The response was judged by posttest scores and feedback forms. Results: There was an improvement of understanding of the biochemical concepts as assessed by the posttest scores and solving of a similar clinical problem. The students expressed satisfaction with the conduction, timing, and discussion of the clinical problems. The drawbacks of traditional teaching as expressed during the feedback stage were also taken care of by the brainstorming sessions. Conclusions: Our project made the students and the faculty aware about the utility of brainstorming for teaching purposes in medical education which till now was considered efficacious only for troubleshooting in advertising and management institutions. The students were satisfied with this technique for understanding of biochemical concepts. PMID- 29344452 TI - The Acceptability and Feasibility of Mini-clinical Evaluation Exercise as a Learning Tool for Pediatric Postgraduate Students. AB - Background: The mini-clinical evaluation exercise (Mini-CEX) is a valid and reliable tool that facilitates the assessment of skills essential for a physician and provision of immediate feedback. Aims: This study aimed to assess the acceptability and feasibility of Mini-CEX as a learning tool for pediatric residents. Materials and Methods: Following the sensitization with the concept of Mini-CEX, the actual process of assessment of residents was done using the "standardized American Board of Internal Medicine Mini-CEX evaluation form." Feedback about the Mini-CEX was taken from the residents and faculty on separate questionnaires consisting of close- and open-ended questions. A total of 87 Mini CEX encounters were done with 13 faculty and 29 residents over 6-month study period. Results: Residents perceived that it is a method that does the assessment of skills, prerequisite for good clinical performance with provision of immediate feedback. Most of the residents felt that it improved their clinical skills, uplifted the personal development, and impart a better one to one student-teacher interaction. Almost all the faculty were satisfied with this method of assessment. They found it useful for improved learning of themselves also. Both residents and faculty suggested to incorporate Mini-CEX in curriculum. Conclusions: Mini-CEX is an acceptable learning tool as reflected by the residents and faculty. It is feasible to use mini-CEX for assessment of residents. PMID- 29344453 TI - Introduction of Medical Humanities in MBBS 1st Year. AB - Context: Most vital areas of patient management such as empathy, professionalism, and ethics are lacking in fresh undergraduates. These areas are considered to be part of hidden curriculum, and as these are not formally taught, we lack competent medical graduates. Introduction of medical humanities (MH) early in the medical curriculum can help to inculcate required soft skills. Aims: This study aims to develop, administer, and evaluate MH module in 1st year MBBS students. Settings and Design: Module of MH was introduced among 150 1st year MBBS medical students. Subjects and Methods: After taking permission from ethical committee of the institute, a core committee for development of MH module was formed. A standardized validated module for MH comprising of three sessions was formed and was introduced in 1st year MBBS 150 students. Evaluation was done in the form of student and faculty feedback questionnaire, consisting of open- and closed-ended questions. Statistical Analysis Used: Analysis was done using descriptive statistics using mean and standard deviation. Results: According to participants' feedback and perception, mean overall rating of MH module was 4.69, indicating that it was received well by the students. Out of 3 sessions conducted, students gave maximum grades to session 2: cinemeducation. Results of faculty feedback questionnaire indicated that MH is needed and should be introduced in every batch of 1st year MBBS and should be continued longitudinally. Conclusions: Awareness, knowledge, and attitude of students improved as a result of MH module. Our results indicate that such modules should be implemented in undergraduate medical curriculum. PMID- 29344454 TI - Critical Review of "Family Health Advisory Services" Assessment in MBBS Training Program in Community Medicine. AB - Context: Family Health Advisory Services (FHAS) posting as well as its assessment is resource demanding but fails to enjoy priority. Study focuses on a holistic overview of the assessment process to understand need for change. Aims: The aim of this study is to identify perceived gaps in current assessment practices related to FHAS posting. Settings and Design: A cross-sectional mixed method study among all the V semester students currently undergoing assessment for the posting, past students (selected VII semester students and interns), preceptors (supervising residents - postgraduate students in department and senior resident, health assistants, medical social service officer), and involved faculty. Subject and Methods: Self-administered questionnaire, in-depth interview, focus group discussions (two) as well as observations using checklist were used for data collection and triangulation. Statistical Analysis Used: Quantitative data used in this study were statistical measures of central tendency and dispersion. Qualitative data transcript repeatedly read to identify underlying common themes, compared to draw inference. Results: There was a lack of guidelines and communication regarding assessment. Formative assessment was not performed and replaced by one time end assessment. All components of learning were not assessed. End-posting assessment was not standardized and unrelated to learning objectives. Award of scores was skewed toward right for intervention and toward left for analysis and community diagnosis. Conclusions: There is a need to focus on proper implementation of programme to strengthen formative assessment. Assessment should be relevant to learning objectives of posting. Faculty has to lead by example. PMID- 29344455 TI - Qualitative Assessment of Learning Strategies among Medical Students Using Focus Group Discussions and In-depth Interviews. AB - Background: Globally, students with top academic performance and high intellectual capacity usually opt to study medicine. However, once students get enrolled, their academic performance varies widely. Such variations appear to be determined by various factors, one of them being types of learning strategies adopted by students. The learning strategies utilized by the students with better academic performance are likely to be more effective learning strategies. Aims and Objectives: The objective is to identify effective learning strategies used by medical students. Methodology: This study was carried out among the MBBS students of Final Professional Part I. Students were categorized into three groups namely: high, average, and low rankers based on overall academic performance in second Professional University examination. First, a questionnaire consisting of closed- and open-ended questions was administered to students, to find their learning strategies. Subsequently, focus group discussion and in-depth interviews were conducted for high- and low-rankers. Discussions were audio recorded, transcribed, and analyzed. Key statements were highlighted, collated, and categorized into general themes and sub-themes. Results: Evident themes which emerged as effective strategies were hard work in the form of regularity of studies, meticulous preparation of notes, constructive use of time, utilization of e-learning, learning styles and deep learning approach and regular ward visits. Intrinsic motivation, family support, balancing physical activities and studies, guidance by seniors, teachers, dealing with nonacademic issues such as language barriers and stress were also identified as important strategies. Conclusions: Disseminating effective learning strategies in a systematic manner may be helpful to students in achieving better academic outcomes. Furthermore, educationists need to modulate their teaching strategies based on students' feedback. PMID- 29344456 TI - Early Clinical Exposure as a Learning Tool to Teach Neuroanatomy for First Year MBBS Students. AB - Context: Early clinical exposure (ECE) is one of the important tools to teach basic science to the MBBS students. It is one form of vertical integration between basic science and clinical subjects. This study is an effort at exploring the use of ECE as a motivational tool toward better learning in neuroanatomy for first year MBBS students. Aim: This study aims to make the students interested and motivated to study neuroanatomy by using ECE as learning tool in neuroanatomy and to make the students enable to retain the knowledge of neuroanatomy more efficiently and correlate the knowledge of neuroanatomy with neuromedicine. Settings and Design: This study was conducted in collaboration with the Departments of Anatomy, General Medicine and Medical Education Unit in the year 2016. This was cross-sectional study. Subjects and Methods: One hundred and fifty students of 1st Professional MBBS were subdivided into two groups. After preliminary classes on brain, brainstem, and spinal cord for both groups, conventional lecture classes were taken for Group A only on upper motor neuron (UMN) and lower motor neuron (LMN) paralysis, and only Group B visited General Medicine ward where HOD, General Medicine showed and examined patients of UMN paralysis and LMN paralysis, elicited different symptoms, and discussed different investigation. It was followed by assessment of all by problem-based multiple choice questions (MCQ) and short answer questions. Then, Group B attended lecture class on different cranial nerve palsy whereas Group A visited medicine ward. It was followed by assessment of both groups by problem-based MCQ and short answer questions. The performance was compared. Then, the feedback of the students on ECE was collected by means of reflection writing followed by administration of questionnaire. Then, the perception of teachers regarding ECE was recorded by focused group discussion. Statistical Analysis Used: Student's t-test was used to compare the performance of both batches. Reflection writing and focus group discussion were analyzed qualitatively. Results: There was a significant difference in Group A (P = 0.019) but no significant difference in Group B (P = 0.679). All the teachers opined that ECE was an efficient method but more time and interdepartmental collaboration were necessary. Conclusions: Group A improved performance due to ECE but Group B maintained the motivational effect of it. Therefore, ECE can be used as an effective learning tool. PMID- 29344457 TI - Development and Implementation of Module for Medical Graduates to Improve Socio cultural Sensitivity towards People Living with HIV. AB - Background: Health professionals are documented as an important cause for stigmatizing people living with HIV (PLHIV). Since traditional teaching on HIV in India does not address cultural competencies, medical graduates lack sociocultural sensitiveness while addressing the health needs of PLHIV. Aim: The aim of this study is to develop and to implement a module for medical graduates to improve their sociocultural sensitivity toward PLHIV. Methodology: A module was designed and introduced to address the core sensitive issues in HIV among medical graduates with the help of trained faculty. It included community education sessions including interaction with PLHIV to address cross-cultural issues and understand their health needs. Feedback for the perception of faculty and students was obtained. Knowledge and skills improvement was assessed through pre- and post test and direct observation of procedural skills (DOPS). Results: Mean feedback score was high for all the components covered by the module. It was found to be more for "usefulness of module" (4.91 +/- 0.27836 on a scale of 5) than other components of the module. Feedback by faculty showed almost perfect agreement on "improvement of student's clinical skills" and "bringing perfection in their future practice" across multiple raters. Multiple response open-ended feedback showed, 78 (19%) responses affirmed improvement in communication skills with training in this module. Pre- and post test mean score for knowledge showed an increase (22.1 to 26.49). Mean skills improvement as per expectations were 86.81 and beyond expectations were 5.34. Conclusions: Training the medical graduates in structured HIV specific module improves their socio-cultural sensitivity toward PLHIV and is perceived useful. PMID- 29344458 TI - Case-based Learning in Microbiology: Observations from a North West Indian Medical College. AB - Background: Microbiology is usually taught by conventional lectures, and its retention and application is observed to be poor among medical graduates/practitioners. Aim and Objectives: Introduction of case-based learning (CBL) in microbiology for second-year professional MBBS students. Materials and Methods: Students were divided into two groups of fifty each. Four clinical cases were used for CBL. One group had two CBL sessions whereas the other had didactic lectures (DLs) and then the groups were crossed over. Case scenario handouts were given to students a week before the session, and smaller groups were formed for discussions and presentations in CBL sessions. Posttest, in multiple choice questions format, was conducted in two phases: First, immediately after the completion of the four CBL and DL sessions, and second, 6 weeks after the first posttest. Student and faculty feedback was taken about CBL sessions. Results: Hundred MBBS students of the fourth semester voluntarily participated in the CBL study. The CBL scores were significantly higher than DL session scores (P = 0.015). This difference was more marked in scoring done after 6 weeks of session completion (P < 0.001). Student reported satisfaction in being taught by CBL method in 5-point Likert scale feedback form. Faculty feedback was positive for CBL. Conclusions: CBL helped in retention of knowledge and its application better than DL in our observation. More sessions on commonly encountered case scenarios will be useful for students in recalling basic science knowledge in their later years as practitioners. PMID- 29344459 TI - Module for Interns in Medical Ethics: A Developmental Diegesis. AB - Background: Media report is rife with incidences of doctor-patients' conflict, and this partly is due to communication gap and unethical practices being adopted by the doctors. Our regular curriculum fails to impart any training in ethical issues in patient care. Imparting training to students in these soft-skills is the need of the hour. Aim and Objectives: To develop a module for interns in medical ethics (MIME) in patient care, validate it and pilot run the module for standardization. Methodology: After conducting faculty development workshop in curriculum designing and three rounds of Delphi with alumni, a module in medical ethics was developed and peer validated. The questionnaire for pilot run, questionnaire for future use of module delivery and pre- and post-test were also peer validated. The module was delivered to 17 interns as pilot run in the form of 4 days' workshop. After pilot run, the module was standardized to 10 broad topics and 3 days' workshop. The questionnaire for future delivery of module in regular routine was also validated during pilot run. Results: Twenty-five faculty members participated in 1 day faculty development workshop and 59 alumni completed three rounds of Delphi. After peer review by five experts, a module of 11 broad areas was developed and was pilot run on 17 interns. Based on the feedback from pilot run, a standardized, validated 18 h teaching MIME in patient care was developed. Conclusion: Pilot study proves that curriculum innovation in the form of medical ethics training to interns; when as undergraduate students, they actively participate in patient care under supervision will go a long way in inculcating soft skills like ethics, compassion and communication in them. PMID- 29344460 TI - Impact of Integrated Teaching Sessions for Comprehensive Learning and Rational Pharmacotherapeutics for Medical Undergraduates. AB - Background: It is postulated that integrated teaching method may enhance retention of the knowledge and clinical applicability of the basic sciences as compared to the didactic method. Aim: The present study was undertaken to compare the integrated teaching method with the didactic method for the learning ability and clinical applicability of the basic sciences. Materials and Methods: The 2nd year MBBS students were divided into two groups randomly. The study was conducted into two stages. In the first stage, conventional didactic lectures on hypertension (HT) were delivered to one group and multidisciplinary integrated teaching to another group. For the second stage, diabetes mellitus groups were swapped. Retention of the knowledge between the groups were assessed through a multiple choice questions (MCQ) test. Feedback of the students and faculty was obtained on a 5 point Likert scale. For the comparison, student's data were regrouped into four groups, i.e., integrated HT, didactic HT, integrated diabetes and didactic diabetes. Results: There was no significant difference of MCQ score between integrated HT, didactic HT, and integrated diabetes group. However, the score obtained in didactic diabetes was significantly more (P = 0.00) than other groups. Majority of the students favored integrated teaching for clinical application of basic science and learning of the skill for the future clinical practice. Faculties considered integrated method as a useful method and suggested frequent use of this method. Conclusion: There was no clear difference in knowledge acquisition; however, the students and faculties favored integrated teaching method in the feedback questionnaire. PMID- 29344461 TI - Using Role-plays as an Empathy Education Tool for Ophthalmology Postgraduate. AB - Purpose: To assess the role of an "empathy sensitizing module" (ESM) in ophthalmology postgraduates in promoting effective empathetic communication. Methodology: Thirty-nine ophthalmology postgraduates were taught effective empathetic communication using specially designed module, comprising of five illustrative role-plays. We evaluated the impact of the training by (a) self assessment of empathy quotient by residents using Jefferson Scale of Empathy (JSE scale) before and 6 weeks after ESM training and (b) nonparticipant observation (NPO) by trained faculty in real-life settings over the next 4 months. A peer validated, self-designed checklist was used for NPO. The change in score was analyzed using Student's paired t-test. The faculty observed the use of empathy in real-life patient encounters of the trainees over the next 6 months. In addition, secondary qualitative data were collected and analyzed to assess the impact of the module on other stakeholders such as the role-playing undergraduate students and core faculty. Results: Pretraining assessment revealed that concept of empathy during patient communication was understood by only 10% students. PostESM training, the self-rated mean empathy score, on JSE, significantly increased from 95.9 to 106.7 (of a maximum of 140). This was also confirmed by a significant improvement in externally rated empathy and soft skills scores (from 29.3 to 39.1; of a maximum of 55) using the NPO tool. Focus group discussion was done on the continued display of empathy by the trainees in real-life situation over 6 months of observation by the faculty. The group agreed that there was a gradual attrition of initial gain in empathy behavior over the observation period of 6 months. The spillover benefits of the training process were observed among the role-playing undergraduates as well. A thematic analysis of their reflections on the process revealed a substantial change with an improved understanding of effective communication. Conclusions: There is a definite scope for introducing empathetic communication in medical training. Empathetic communication can be improved by effective training in a contextual manner with a need for regular reinforcement. Sensitization at all levels including the faculty is required to implement effective communication skills in medical profession. PMID- 29344462 TI - Introducing Mentoring to 1st-year Medical Students of a Private Medical College in North India: A Pilot Study. AB - Background: The stress of complex medical course, emotional immaturity, and adaptations to new surroundings are the challenges faced by the new medical entrants. Therefore, mentorship program was introduced to support them for their academic and personal development. Aim and Objectives: The aim of this study is to introduce and to assess the perception of mentors and mentees on mentorship program. Materials and Methods: A mentorship program was designed for Bachelor of Medicine and Bachelor of Surgery (MBBS) First Professional students. A 1-day workshop was conducted to sensitize the faculty. Seventeen faculty members from various departments volunteered to be mentors. After sensitization, 150 MBBS First Professional students were divided among these faculty members by lottery system. A regular visit of mentees was scheduled with the mentor. At the end of mentorship program, the perception of mentors and mentees was taken using a validated and semi-structured feedback questionnaire. A focus group discussion of students was also conducted. Results: A total of 112 students and 16 faculty members completed the feedback questionnaire. The mentors considered this program helpful in their self-improvement, teaching, and communication skills. Most of the mentees felt that this program helped them emotionally and academically. It was a good way to develop a strong student-teacher relationship. All the mentors and mentees were satisfied with the mentorship program. Conclusions: The newly introduced mentorship program helped in the overall development of mentors and mentees. Both mentors and mentees were extremely satisfied with this program and considered this as a successful intervention. PMID- 29344463 TI - Team-based Learning Strategy in Biochemistry: Perceptions and Attitudes of Faculty and 1st-Year Medical Students. AB - Background: Team-based learning (TBL) strategy has been widely adapted by medical schools all over the world, but the reports regarding the perceptions and the attitudes of faculty and undergraduate medical students towards TBL approach have been conflicting. Aim: The study aimed to introduce TBL strategy in curriculum of Biochemistry after evaluating its effectiveness through perceptions and attitudes of faculty and 1st-year medical students. Materials and Methods: One hundred and fifty students of first professional M.B.B.S and five faculty members participated in the study. Their responses regarding perceptions and attitudes towards TBL strategy were collected using structured questionnaires, focus group discussions, and in-depth interviews. Data were analyzed using Wilcoxon signed rank test, paired sample t-test, and Mann-Whitney U-test. Results: Majority of the students expressed satisfaction with team approach and reported improvement in the academic scores, learning styles, and development of problem-solving, interpersonal, and professional skills. The faculty, however, recommended a modified TBL approach to benefit all sections of the students for the overall success of this intervention. Conclusion: TBL is an effective technique to enable the students to master the core concepts and develop professional and critical thinking skills; however, for the 1st-year medical students, a modified TBL approach might be more appropriate for the effective outcomes. PMID- 29344464 TI - Cannabinoids in the Treatment of Epilepsy: Hard Evidence at Last? AB - The interest in cannabis-based products for the treatment of refractory epilepsy has skyrocketed in recent years. Marijuana and other cannabis products with high content in Delta(9) - tetrahydrocannabinol (THC), utilized primarily for recreational purposes, are generally unsuitable for this indication, primarily because THC is associated with many undesired effects. Compared with THC, cannabidiol (CBD) shows a better defined anticonvulsant profile in animal models and is largely devoid of adverse psychoactive effects and abuse liability. Over the years, this has led to an increasing use of CBD-enriched extracts in seizure disorders, particularly in children. Although improvement in seizure control and other benefits on sleep and behavior have been often reported, interpretation of the data is made difficult by the uncontrolled nature of these observations. Evidence concerning the potential anti-seizure efficacy of cannabinoids reached a turning point in the last 12 months, with the completion of three high-quality placebo-controlled adjunctive-therapy trials of a purified CBD product in patients with Dravet syndrome and Lennox-Gastaut syndrome. In these studies, CBD was found to be superior to placebo in reducing the frequency of convulsive (tonic-clonic, tonic, clonic, and atonic) seizures in patients with Dravet syndrome, and the frequency of drop seizures in patients with Lennox-Gastaut syndrome. For the first time, there is now class 1 evidence that adjunctive use of CBD improves seizure control in patients with specific epilepsy syndromes. Based on currently available information, however, it is unclear whether the improved seizure control described in these trials was related to a direct action of CBD, or was mediated by drug interactions with concomitant medications, particularly a marked increased in plasma levels of N-desmethylclobazam, the active metabolite of clobazam. Clarification of the relative contribution of CBD to improved seizure outcome requires re-assessment of trial data for the subgroup of patients not comedicated with clobazam, or the conduction of further studies controlling for the confounding effect of this interaction. PMID- 29344466 TI - Comparison of Autonomic Function before and after Surgical Intervention in Patients with Temporal Lobe Epilepsy. AB - Background and Purpose: Refractory temporal lobe epilepsy (TLE) is commonly associated with imbalances in cardiovascular (CV) parasympathetic and sympathetic functions, which are treated using TLE surgery. We investigated the effect of hemispheric lateralization of seizure foci on autonomic CV functions before and after TLE surgery. Methods: The study was conducted on patients with left TLE (LTLE, n = 23) and right TLE (RTLE, n = 30) undergoing unilateral TLE surgery. To assess the autonomic CV functions, changes in the heart rate (DeltaHR) and blood pressure (BP) were measured using a standardized battery of autonomic reactivity tests before surgery and at 3 and 6 months after surgery. Results: Before surgery, DeltaHR and the expiration to inspiration ratio (E:I) during the deep breathing test were higher in the LTLE group than in the RTLE group (both p < 0.001), but both outcomes were comparable between the groups at 3 and 6 months. DeltaHR decreased at 3 and 6 months (p < 0.001 and 0.01, respectively) compared with preoperative values. The E:I at 3 months in the LTLE group was lower (p = 0.04) than the preoperative values. Decrease in systolic BP during the head-up tilt test was greater in the LTLE group than in the RTLE group (p = 0.002) before surgery. The maximum increase in diastolic BP during the cold pressor test was lower in the RTLE group at 6 months than that before surgery (p = 0.001) and in the LTLE group (p = 0.002). Conclusions: We found that hemispheric lateralization of seizure foci in the temporal lobe had a differential effect on autonomic CV functions before surgery. Before surgery, parasympathetic reactivity was higher in the LTLE group, and sympathetic reactivity was higher in the RTLE group. After surgery, autonomic CV functions were comparable between the groups, suggesting that TLE surgery stabilizes autonomic CV functions. PMID- 29344465 TI - Grey and White Matter Alterations in Juvenile Myoclonic Epilepsy: A Comprehensive Review. AB - Juvenile myoclonic epilepsy (JME) has been classified as a syndrome of idiopathic generalized epilepsy and is characterized by a strong genetic basis, age-specific onset of seizures, specific types of seizures, generalized spike-wave discharges on electroencephalography, and a lack of focal abnormality on magnetic resonance imaging (MRI). Recently, a wide range of advanced neuroimaging techniques have been utilized to elucidate the neuroanatomical substrates and pathophysiological mechanisms underlying JME. Specifically, a number of quantitative MRI studies have reported focal or regional abnormalities of the subcortical and cortical grey matter, particularly the thalamus and frontal cortex, in JME patients. In addition, diffusion tensor imaging studies have pointed to disrupted microstructural integrity of the corpus callosum and multiple frontal white matter tracts as well as thalamofrontal dysconnectivity in JME patients. Converging evidence from neuroimaging studies strongly suggests that JME is a predominantly thalamofrontal network epilepsy, challenging the traditional concept of JME as a generalized epilepsy. There is also limited evidence indicating extrafrontal and extrathalamic involvement in JME. This systematic review outlines the main findings from currently available MRI studies focusing on grey and white matter alterations, and discusses their contributions to the etiology and pathophysiology of JME. The clinical utility, advantages, and drawbacks of each imaging modality are briefly described as well. PMID- 29344467 TI - Longitudinal Change in Thyroid Hormone Levels in Children with Epilepsy on a Ketogenic Diet: Prevalence and Risk Factors. AB - Background and Purpose: The aim of this study is to evaluate the prevalence of hypothyroidism and the change of thyroid hormone level in the children with epilepsy on a ketogenic diet (KD). Methods: The levels of serum free thyroxine (fT4) and thyroid-stimulation hormone (TSH) were measured at the start of the KD and at 6- to 12-month intervals in children with intractable epilepsy. Hypothyroidism was defined as fT4 level < 0.8 ng/dL and TSH level > 6.0 MUIU/mL. Results: A total of 28 children (17 boys and 11 girls) were enrolled in the study. The mean age of onset of seizure was 1.4 +/- 1.6 years, the mean age of the start of the KD was 3.2 +/- 2.4 years, and the mean duration of KD was 1.9 +/ 1.5 years. Overall, there was no significant longitudinal change in the mean fT4 (0.99 +/- 0.25 vs. 0.94 +/- 0.71 ng/dL, p = 0.28) and TSH (2.94 +/- 1.32 vs. 3.18 +/- 1.21 MUIU/mL, p = 0.44) levels from the start of the KD to last follow-up. The patients with a younger age of seizure onset, earlier initiation of KD, and higher serum levels of cholesterol and triglyceride had a significant decrease in fT4 levels and increase in TSH levels during the KD. Sex, duration of the seizure or KD therapy, seizure types, seizure frequency, seizure outcomes, brain lesion, ratio of KD, and being overweight did not affect the longitudinal change of fT4 and TSH levels during KD. Conclusion: Thyroid function had no significant longitudinal decrease in pediatric epilepsy during KD therapy. However, careful monitoring of the serum levels of fT4/TSH should be recommended in children on KDs, especially in those with earlier seizure onset, earlier start of KD, and higher levels of lipid profiles. PMID- 29344468 TI - Levetiracetam-Induced Skin Hyperpigmentation: An Extremely Rare Undesirable Side Effect. AB - Levetiracetam is one of the newer second-generation antiepileptic drugs with multiple mechanisms of action. Cutaneous side effects due to levetiracetam are rarely reported in the literature. In this article, we describe a patient with skin hyperpigmentation due to the treatment with levetiracetam with complete resolution after discontinuation of the medication. In addition, we review the topic and hypothesize the mechanism behind this rare complication. To the best of our knowledge, this is the first report of skin hyperpigmentation as a side effect of levetiracetam in the literature. The prescribing physicians should inform the patients about all potential side effect of levetiracetam including skin hyperpigmentation. Similar to many undiagnosed conditions, increased awareness of their existence is the key to diagnosis. Early recognition and timely cessation of therapy are important to reverse this effect. Further studies should be conducted to explore the pathophysiology of this rare side effect. PMID- 29344469 TI - Successful Use of Therapeutic Hypothermia for Refractory Nonconvulsive Status Epilepticus. AB - Therapeutic hypothermia (TH) has rarely been utilized as an adjunct to anticonvulsants in treating patients with refractory convulsive status epilepticus (CSE). However, determining the effectiveness of TH in CSE is difficult due to the unavoidable use of sedative drugs to manage hypothermia. Additionally, the effectiveness of TH has not been studied in patients with refractory non-convulsive status epilepticus (NCSE). Here, we report the successful use of TH without additional sedative drugs in a patient with temporal lobe epilepsy and refractory NCSE. A 46-year-old man was referred to the neurology department because of recurrent seizure attacks. Electroencephalography (EEG) after first-line status treatment showed continuous periodic discharges consistent with NCSE. He was started simultaneously on continuous EEG monitoring and TH, but was not administered any benzodiazepines to control shivering or maintain TH. During TH, EEG abnormalities gradually improved, and the patient regained consciousness in accordance with the improvement in EEG. The patient was alert and his EEG had normalized a few days after starting TH. To the best of our knowledge, this is the first report describing the successful treatment of refractory NCSE with TH. As no sedative drugs were used during the maintenance of hypothermia, NCSE control may have been achieved by TH alone. PMID- 29344470 TI - Aphasic Status Epilepticus Associated with Uremia. AB - Aphasic status epilepticus (ASE) is a rare disorder characterized by recurrent aphasia without impairment of other cognitive functions. A 76-year-old woman with chronic kidney disease developed ASE after neglecting peritoneal dialysis. Magnetic resonance imaging failed to demonstrate an appropriate lesion. Electroencephalography demonstrated ictal discharges in the left frontotemporal leads. ASE disappeared after intravenous valproic acid and correction of uremia. This is the first case report of ASE in a patient with acute aggravation of uremia. PMID- 29344471 TI - A 6-Month-Old Girl with Incontinentia Pigmenti Presenting as Status Epilepticus. AB - Incontinentia pigmenti (IP) is an uncommon neurocutaneous syndrome. Its initial diagnosis is based primarily on characteristic papulovesicular skin lesions and early-onset neonatal seizures. In contrast to typical early neurologic manifestations, we encountered a normally developed 6-month-old female patient with hyperpigmented whorls on her body. Following respiratory syncytial virus infection and fever, the patient exhibited status epilepticus. Brain magnetic resonance imaging studies of the patient were compatible with the findings of acute encephalopathy in IP. Genetic analysis showed an 11.7 kb deletion within the gene encoding inhibitor of kappa-B kinase gamma. The patient was treated with anticonvulsants and subsequently reached expected developmental milestones after discharge. These findings indicate that when a patient presents with status epilepticus, meticulous examination for skin lesions should be performed to determine whether the patient has a neurocutaneous syndrome, such as IP. PMID- 29344472 TI - Status Epilepticus as an Unusual Manifestation of Heat Stroke. AB - Heat stroke (HS) is a medical emergency and life threatening condition, characterized by body temperature over 40 degrees C. This can lead to dysfunction of multiple organs such as the heart, liver, kidneys, lungs, blood coagulation system, and central nervous system. Neurological complications include change in consciousness, cerebellar dysfunction, convulsions, aphasia, muscular weakness, and parkinsonism. Cerebellar syndrome is the most common neurological finding in HS. We report a case of HS presenting with status epilepticus, without any other neurological manifestations. A 42 year old man, previously diagnosed with bipolar disorder, was admitted to the emergency room with high fever and repetitive generalized tonic-clonic seizures. He had been found unconscious after 4 hours of heavy physical work under extremely hot weather conditions. He was diagnosed with HS accompanied by status epilepticus, and treated with emergency body cooling and antiepileptics. Five days after admission, he regained consciousness and the laboratory parameters that were initially abnormal returned to normal values. On day 14, he was discharged without any neurological complications. PMID- 29344473 TI - Intractable Epilepsy with Solitary Cerebral Calcification. AB - Cerebral calcification is a common incidental finding upon brain imaging and its epileptogenicity is often underestimated. Here, we report a case of intractable epilepsy arising in conjunction with a solitary cerebral calcification. A 42-year old male with intractable epilepsy was admitted to the epilepsy clinic for invasive epilepsy surgery. Brain magnetic resonance imaging revealed a slight high-intensity signal change in the right amygdala and a small, calcified lesion in the right lateral temporal region. The patient underwent invasive monitoring with subdural electrodes. He had five habitual seizures with automatisms and fast activity. These seizures initiated in the right lateral temporal area just above the solitary calcified lesion. Neuropathology of the calcified lesion showed no specific findings apart from a fibrocalcific nodule. Thus, although solitary cerebral calcifications may be an asymptomatic or coincidental finding in some patients, they may also have a highly epileptogenic focus. PMID- 29344474 TI - Corneal Myofibroma (Keloid) in a Young Patient with Neurofibromatosis Type 2. AB - We present a 27-year-old male patient with neurofibromatosis type 2 (NF2), facial palsy, and lagophthalmos following acoustic neuroma removal and an impressing vascularized corneal tumor, which was excised. Histology showed a fibrous tumor with small vessels, and immunohistochemistry was positive for vimentin and negative for smooth muscle actin, S100, and GFAP. We assume a corneal myofibroma (keloid), which in this case rather represents a reactive lesion. This entity has not been described before in NF2 or in facial palsy-associated lagophthalmos in general. PMID- 29344475 TI - Ring-Shaped Leiomyoma of the Ciliary Body. AB - Purpose: Ciliary body mesectodermal leiomyoma is a rare, benign smooth muscle tumor that typically presents in women in the second to fourth decade of life. The diagnosis is typically based on clinical color, funduscopic appearance, transillumination properties, and B-scan ultrasonography. Methods: We present a patient with a 360 degrees ciliary body mass with transillumination and ultrasonographic properties consistent with a ring melanoma. Results: This case emphasizes the difficulty in differentiating the benign leiomyoma from similar appearing malignant tumors such as melanoma. Conclusion: The eye was enucleated and the diagnosis was ring-shaped leiomyoma. PMID- 29344476 TI - Acute Angle Closure Precipitated by Hemorrhage and Necrosis of a Large Uveal Melanoma in the Setting of Systemic Immunomodulatory Therapy. AB - Management of nonmetastatic uveal melanoma has been well studied and a large body of work has been published by the Collaborative Ocular Melanoma Study (amongst many others). Management of uveal melanoma that is found to be metastatic upon initial diagnosis, however, is less well defined. We report an interesting case of acute angle closure caused by necrosis and hemorrhage into a large uveal melanoma occurring shortly after initiation of immunomodulatory therapy with ipilimumab and nivolumab for metastatic disease. The use of these immunomodulatory agents in the setting of metastatic uveal melanoma is not well studied, and our case illustrates the importance of interdisciplinary communication in order to best decide the timing of surgical and systemic medical management to optimize outcomes and minimize morbidity. PMID- 29344477 TI - Is There an Increased Prevalence of Asteroid Hyalosis in Eyes with Uveal Melanoma? A Histopathologic Study. AB - During the planning meeting for the Collaborative Ocular Melanoma Study (COMS) prior to the start of patient recruitment in 1986, there was an interest expressed in determining whether a relationship existed between the presence of uveal melanoma (UM) and asteroid hyalosis (AH). To answer this question, the ophthalmic examination form (unlike the pathology form for enucleated eyes) for each COMS patient asked whether AH was present or not. Though an increased prevalence was not found, this result was never published. A recent unpublished study at the University of Wisconsin School of Veterinary Medicine indicated a higher prevalence of AH in canine eyes with UM when compared to control eyes (without tumor) enucleated for goniodysgenesis. This further increased our interest in revisiting the published literature, clinical records, and histopathology slides of the enucleated eyes from the COMS study, as well as the histopathology slides on file in the University of Wisconsin Eye Pathology Laboratory. While cases with both AH and UM were occasionally encountered in the literature, clinically, we could not find a previous study focusing on these two processes. This study was conducted to explore whether such an association exists. PMID- 29344478 TI - Incidentally Discovered Adenoid Cystic Carcinoma of the Lacrimal Gland with Isolated Liver Metastases. AB - Aim: To report a rare presentation of adenoid cystic carcinoma (ACC) of the lacrimal gland. Method: This is a case report presenting clinical, radiographic, and histopathologic findings. Results: A 72-year-old female with no reported ocular symptoms was found to have an incidental right orbital mass on imaging. Additional studies revealed multiple liver lesions, which were biopsied and found to be consistent with ACC. She was then referred to the ophthalmology service, where ocular examination demonstrated 2.5 mm of right proptosis with elevation and abduction deficits. Diplopia could be elicited in extreme upgaze and right lateral gaze. An excisional biopsy of the orbital mass was performed, with histopathology confirming the diagnosis of primary ACC of the lacrimal gland, thereby also supporting the initial suspicion that the hepatic ACC lesions represented metastases. Conclusion: The authors describe a rare presentation of ACC of the lacrimal gland, initially asymptomatic, with metastatic lesions restricted to the liver at the time of diagnosis. Three previous cases of ACC with isolated metastatic hepatic lesions at the time of diagnosis have been reported; all of these cases localized the primary tumor to the salivary glands. PMID- 29344479 TI - Mechanisms of Optic Nerve Invasion in Primary Choroidal Melanoma. AB - Aim: The aim of this study was to assess morphological risk factors associated with optic nerve invasion of choroidal melanoma and to identify possible mechanisms of optic nerve invasion. Methods: Medical charts and histology slides of patients with primary choroidal melanoma who were treated by enucleation/exenteration and whose pathology showed optic nerve invasion were reviewed. Results: Twenty-one patients (mean age: 65.67 +/- 14.72 years) with primary uveal melanoma arising from the choroid were included in this analysis. A peripapillary location was present in 86% of the cases. Four types of optic nerve invasion were identified: transvitreal invasion (10%); retinal invasion (23%); direct peripapillary invasion (57%); and a combined mechanism (10%). Optic nerve invasion was prelaminar in 67%, laminar in 10%, and retrolaminar in 23% of the cases. Significantly higher largest basal diameter (p = 0.021) and tumor thickness values (p = 0.017) and higher rates of vortex vein (p = 0.022) and retinal invasion (p = 0.007) were observed in the transvitreal/retinal invasion groups when compared to the direct peripapillary invasion group. Conclusions: A peripapillary tumor location was the most common mechanism of optic nerve invasion of choroidal melanoma. In 43% of the cases, other mechanisms including transvitreal and retinal invasion resulted in optic nerve invasion. PMID- 29344480 TI - Primary Conjunctival Tuberculosis Presenting as Dry Eye: A Rare Case Report and Review of the Literature. AB - Primary conjunctival tuberculosis is very rare in the developed countries. In an endemic country like India, it should be considered in the differential diagnosis of any unusual conjunctival lesion with unilaterality, chronicity, and nonresolution of symptoms after steroid use. We present the case of a 52-year-old female who presented with unilateral itching and blurring of vision for 20 days. There were irregular nodular elevated areas with shrinkage of the lower palpebral conjunctiva. A biopsy of the lesion revealed necrotizing epithelioid cell granulomas along with Langhans type of giant cells. However, no acid-fast bacilli were seen on Ziehl-Neelsen stain. Systemic examination of the patient was normal, and there was no evidence of pulmonary tuberculosis. Polymerase chain reaction of conjunctival scrapings was positive for Mycobacterium tuberculosis. The patient was started on antitubercular drugs. We present this very rare case of primary tuberculosis of the conjunctiva presenting with dryness of the eye. PMID- 29344481 TI - Choroidal Melanoma Mimicker: A Case of Metastatic Clear-Cell Renal Cell Carcinoma. AB - Choroidal melanoma is the most common primary intraocular malignancy, yet metastatic disease remains the most common malignancy of the eye. Differentiating these entities is essential as treatment, systemic associations, and prognosis vary dramatically between the two. Established diagnostic criteria are accurate for the diagnosis of uveal melanoma. Yet, metastatic disease may be misdiagnosed as a uveal melanoma in rare cases. We report a case of metastatic clear-cell renal cell carcinoma masquerading as uveal melanoma. A 73-year-old Caucasian man with a history of renal cell carcinoma presented with a 15 * 12 * 7 mm homogenous, pigmented, and acoustically hollow mass without hemorrhage or exudation. The patient was initially treated with plaque radiotherapy with good tumor regression. However, the patient developed pain and vision loss due to total exudative retinal detachment. Subsequent enucleation allowed histopathologic confirmation of clear-cell renal cell carcinoma. Nine years following enucleation, the patient remains in complete remission without evidence of other systemic metastases. Renal cell carcinoma should be considered when evaluating patients with probable uveal melanoma. Delayed-onset ocular metastasis from renal cell carcinoma exhibits an atypical clinical course with the possibility of durable remission following enucleation. PMID- 29344482 TI - Optic Nerve Obscuration in Retinoblastoma: A Risk Factor for Optic Nerve Invasion? AB - Background: The objective of this study is to evaluate the risk of optic nerve invasion associated with optic nerve obscuration at diagnosis or persisting during treatment. Methods: Retrospective review from 2011-2016 of patients with advanced retinoblastoma (Group D/E) with complete obscuration of the nerve at diagnosis and a second group of patients with persistent, complete obscuration throughout treatment. Results: Advanced retinoblastoma was diagnosed in 102 eyes of 86 patients. The optic nerve was obscured in 69 eyes (68%) at diagnosis. Of these, 30 (43%) underwent salvage therapy and 39 (57%) primary enucleation. Histopathologic analysis of primarily enucleated eyes showed 41% prelaminar and 15% postlaminar invasion. Four eyes in the salvage group demonstrated persistent nerve obscuration; 2 were subsequently enucleated without evidence of nerve invasion. Average follow-up was 23.5 months (range 1-62 months). Conclusions and Relevance: Optic nerve obscuration at diagnosis may be associated with postlaminar optic nerve invasion. While persistent, complete obscuration of the optic nerve by retinoblastoma during treatment is a poor prognostic sign for both globe salvage and vision, it does not appear, in this small cohort, to increase the risk of optic nerve invasion. With appropriate control of the intraocular tumor, these eyes can be salvaged. PMID- 29344483 TI - Retinoinvasive Uveal Melanoma: Report of 2 Cases and Review of the Literature. AB - Purpose: To describe the clinical history and histopathologic findings of 2 cases of retinoinvasive uveal melanoma. Methods: The medical records and pathology specimens of 2 patients with retinoinvasive uveal melanoma were reviewed. Results: The first patient had an iris/ciliary body melanoma that was treated and the second patient had suspected iridocorneal endothelial syndrome. Both patients developed a blind, painful eye; the first patient's right eye was enucleated and the left eye of the second patient underwent evisceration. Histopathologic examination of the enucleated eye showed a tumor composed of minimally pigmented spindle-shaped cells with fusiform nuclei and prominent nucleoli and round cells with prominent nucleoli. The tumor cells invaded into the retina where they formed perivascular aggregates. Examination of the evisceration specimen showed a proliferation of pigmented tumor cells within the stroma of one iris leaflet. The tumor cells extended onto the ciliary body and vitreous base and invaded the retina. The pathologic diagnosis in both patients was retinoinvasive uveal melanoma. Conclusions: Careful funduscopic and imaging examination should be performed in eyes with unilateral glaucoma with iris/ciliary body lesions, and enucleation, rather than evisceration, should be performed, as retinoinvasive melanoma is in the differential diagnosis. PMID- 29344484 TI - Adenocarcinoma of the Retinal Pigment Epithelium Arising in Conjunction with Late Recurrence and Systemic Metastasis of Retinoblastoma. AB - In 1974, an 8-month-old male was diagnosed with bilateral retinoblastoma. His left eye was enucleated, while the right eye was salvaged with a combination of external beam radiotherapy (4,000 cGy total, divided in 20 fractions) and retinal laser treatment. Thirty-nine years later, he developed intraocular recurrence of retinoblastoma with extrascleral spread. Histopathological examination also identified a second distinct malignancy, retinal pigment epithelium adenocarcinoma, arising in continuity with the retinoblastoma. Further investigation revealed foci of metastatic retinoblastoma in his parotid gland. He was subsequently treated with a combination of orbital exenteration, extensive neck dissection, and resection of metastatic foci, followed by a high-dose ablative chemotherapeutic regimen consisting of cisplatin, vincristine, and cyclophosphamide. Although very rare, late recurrence of retinoblastoma with systemic metastasis is possible, and continued clinical observation and appropriate long-term follow-up should be considered. Additionally, it is important to consider a second primary intraocular tumor in the differential diagnosis, especially in a patient with heritable retinoblastoma who has undergone radiation therapy. PMID- 29344485 TI - Prognostication for Uveal Melanoma: Are Two Tests Better than One? PMID- 29344486 TI - Acute Presentation of Mesectodermal Leiomyoma of the Ciliary Body. AB - Purpose: We report a case of acutely presenting mesectodermal leiomyoma of the ciliary body in a 29-year-old female who reported waking up with swollen eyelids of the right eye and light-perception vision. The affected eye had elevated intraocular pressure, a flat anterior chamber, and a pale, round mass arising from the nasal ciliary body, invading the angle and protruding into the visual axis posterior to the lens. Within days, the visual acuity decreased to no light perception. The eye was enucleated. Methods: The enucleated eye harbored a tumor arising from the ciliary body, measuring 18 mm in the greatest dimension. Spindled cells with fibrillary cytoplasmic processes suggested a neural origin though negative for S-100, Melan-A, and HMB-45. The cells stained strongly positive for smooth muscle actin and vimentin, leading to the diagnosis of mesectodermal leiomyoma of the ciliary body. Results: We review the literature to expand upon the clinical findings, diagnostic methods, and histopathologic and immunohistochemistry characteristics of mesectodermal leiomyoma. Conclusion: Leiomyoma must be in the differential diagnosis for ciliary body mass, especially in women of reproductive age. Diagnosis relies on histopathology and immunohistochemistry. The mechanism of acute symptom onset may be multifactorial. This case emphasizes the possibility of acute presentation of a rare, benign intraocular tumor. PMID- 29344487 TI - Enlarging Pigmented Eyelid Mass Associated with Remote Pencil Trauma. AB - The authors present a case of a gradually enlarging pigmented mass of the upper eyelid and anterior orbit that was discovered to be the graphite tip of a pencil surrounded by macrophages bearing graphite and fibrous tissue. A 25-year-old woman with no medical history presented with a gradually enlarging pigmented lesion of her left upper eyelid. She denied any history of previous skin cancer, trauma, or previous surgery. A biopsy was performed. This revealed an encapsulated grayish, pigmented mass within the medial portion of the left upper eyelid and anterior orbit. Within the pigmented cocoon, the graphite core of a pencil ("pencil lead") was identified. Histopathology demonstrated granulomatous inflammation with fibrosis and macrophages. PMID- 29344488 TI - Intravitreal Aflibercept as Rescue Therapy for Post-Radiation Cystoid Macular Edema Resistant to Intravitreal Bevacizumab: Outcomes at 1 Year. AB - Background/Aims: To investigate the efficacy of intravitreal aflibercept as rescue therapy for post-radiation cystoid macular edema (CME) resistant to prior treatment with intravitreal bevacizumab (IVB). Methods: Retrospective, interventional, case-controlled series. Eyes with persistent post-radiation CME were treated with intravitreal aflibercept (2 mg/0.05 mL). Central macular thickness (CMT) and visual acuity were compared to a matched control group treated with only IVB at 1 year. Results: Ten eyes of 10 patients were included, with 5 eyes in the intervention and 5 in the control group. The eyes in the intervention group had previously been treated with IVB (mean 11.6 injections, range 6-22) but failed to show resolution of CME. Following rescue treatment with a mean of 9 injections of aflibercept, the mean CMT was reduced from 463 +/- 138 to 267 +/- 80 MUm (p = 0.02) and the mean Snellen visual acuity was improved from 20/67 to 20/42 (p = 0.03). At 1 year, the eyes in the intervention group had lower CMT (267 +/- 80 vs. 361 +/- 71 MUm, p = 0.09) and significantly better Snellen visual acuity (20/48 vs. 20/76, p = 0.02) compared to the control group. Conclusions: Aflibercept may be an effective rescue therapy for persistent post radiation CME in eyes with incomplete response to IVB, with reduction in CMT and improvement in visual acuity. PMID- 29344489 TI - Caruncular Oncocytoma Mimicking Malignant Melanoma. AB - Purpose: To report a case of pigmented caruncular oncocytoma that simulated malignant melanoma and discuss the associated ultrasonographic and pathologic features. Method: Case report. Results: An 81-year-old female presented with a painless caruncular mass with a smooth brown surface suspicious for melanoma. Ultrasound biomicroscopy revealed a round mass with a large central cavity, more suggestive of a cystic rather than solid lesion. Following complete surgical resection, histopathology revealed a cystadenomatous lesion composed of bland cells with copious eosinophilic cytoplasm consistent with oncocytoma that had a central blood-filled cavity. Conclusions: Oncocytoma is a benign tumor that can appear pigmented clinically and resemble melanoma. The definitive diagnosis requires histopathologic evaluation. Oncocytoma should be considered in the differential diagnosis of a pigmented caruncular mass. PMID- 29344490 TI - Capillary Dropout: A Novel Fluorescein Angiography Finding in Primary Vitreoretinal Lymphoma. AB - Tissue diagnosis with vitreous and/or retinal biopsy usually confirms the diagnosis of primary vitreoretinal lymphoma. Multiple imaging modalities like fundus fluorescein angiography, fundus autofluorescence, and optical coherence tomography have been used to support the diagnosis of vitreoretinal lymphoma. We report a case of a 74-year-old lady diagnosed with primary vitreoretinal lymphoma showing a novel fluorescein angiographic finding of capillary dropout. We hypothesize that this clinical finding on the fluorescein angiogram may be due to the occlusion of the retinal vasculature by the malignant tumor cells. This finding also suggests the possible intraocular invasion of the malignant lymphomatous cells into the inner retinal layers. PMID- 29344491 TI - Hemophagocytic Lymphohistiocytosis in Adults with Intraocular Involvement: Clinicopathologic Features of 3 Cases. AB - Background/Aims: Hemophagocytic lymphohistiocytosis (HLH) is an infrequent inflammatory multisystemic syndrome. Only rare cases with ophthalmic involvement describing their pathologic features have been previously reported. Methods: We report 3 cases of adult-onset HLH with bilateral ocular involvement and describe their clinicopathologic features. Results: Three adult males - 2 with a history of viral infection - developed persistent fever, fatigue, bone marrow abnormalities, and irreversible multiorgan failure. Visual impairment was also documented in 2 cases. Complete autopsies were performed. Ophthalmic pathology demonstrated a bilateral histiocytic infiltrate with scant lymphocytes affecting the uvea. Focal extension to the retina, optic nerve, and trabecular meshwork were also identified, as well as hemophagocytosis in 1 case. Macrophages showed strong immunoreactivity for CD163 antibody and lacked BRAF p.V600E mutant protein. Conclusion: HLH is an unusual disorder associated with several systemic conditions. Histologic features in the eye are poorly documented, with prior reports restricted to children. Our 3 adult cases are reported using updated criteria and, despite the difference in age, show changes similar to those observed in the pediatric population. PMID- 29344492 TI - Bilateral Hypopyon Uveitis in Chronic Myeloid Leukemia. AB - Background: A leukemic hypopyon is considered an early sign of central nervous system involvement or systemic relapse. A differential diagnosis of masquerade syndromes should be considered in cases of hypopyon uveitis that are atypical or unresponsive to treatment. We report a case of a 45-year-old man who presented with bilateral hypopyon uveitis and was subsequently diagnosed as having chronic myeloid leukemia. Method: Retrospective case review. Results: A 45-year-old diabetic male presented with diminished vision in both eyes for 10 days. Ophthalmic evaluation revealed rubeosis iridis, hypopyon, and signs of proliferative diabetic retinopathy with panretinal laser photocoagulation scars. He subsequently presented 1 week later with a bloodstained hypopyon in his right eye and a persistent hypopyon in his left eye. A peripheral blood smear and subsequent bone marrow trephine biopsy confirmed the diagnosis of chronic myeloid leukemia in blast crisis and he was referred to an oncologist for further management. Conclusion: A recalcitrant or atypical hypopyon uveitis can be an indicator of a blast crisis or a central nervous system involvement or sign of a relapse in cases of leukemia. The presence of unusual bloodstained hypopyon helped in identifying the presence of chronic myeloid leukemia and aided in a prompt oncology consultation. PMID- 29344494 TI - Inhomogeneous Surface Dose Distributions of 106Ru Eye Plaques. PMID- 29344493 TI - Comparison of Gene Expression Profiling and Chromosome 3 Analysis by Fluorescent in situ Hybridization and Multiplex Ligation Probe Amplification in Fine-Needle Aspiration Biopsy Specimens of Uveal Melanoma. AB - Purpose: The aim of this paper was to assess the concordance between results of DecisionDx-UM specific gene expression profiling (GEP) and fluorescence in situ hybridization (FISH) for chromosome 3 analysis, and between DecisionDx-UM GEP and multiplex ligation probe amplification (MLPA) in uveal melanoma undergoing intraoperative fine-needle aspiration biopsy (FNAB) for metastatic prognostication during brachytherapy. Methods: We retrospectively reviewed consecutive patients diagnosed with posterior uveal melanoma who underwent intraoperative FNAB prior to placement of an iodine-125 radioactive plaque between 2012 and 2014. Two cohorts of patients were identified: Cohort 1 - tumors in which both GEP and FISH results were obtained, and Cohort 2 - tumors in which both GEP and MLPA results were obtained. Results: Forty-four patients were identified for Cohort 1. FISH and GEP results were discordant in 7 tumors (15.9%). Forty-three patients were identified for Cohort 2. MLPA and GEP were discordant in 7 tumors (16.3%). Conclusions: Discordance between GEP and chromosome 3 status by FISH and MLPA occurred in our series at a rate of 15.9 and 16.3%, respectively. Caution must be advised when counseling a patient with a good-prognosis GEP "Class 1" result that the uveal tumor may actually harbor monosomy 3, which is associated with a poor prognosis for metastasis in nearly 20% of the patients. PMID- 29344495 TI - Retinoblastoma: A Sixteen-Year Review of the Presentation, Treatment, and Outcome from a Tertiary Care Institute in Northern India. AB - Purpose: To study epidemiology, demographic profile, clinical characteristics, and outcome in pediatric patients with retinoblastoma. Methods: This was a retrospective review of retinoblastoma patients of a tertiary institute from January 1st 1998 to December 31st 2014. Results: The study included 467 patients (618 eyes) with a mean age of 34.7 +/- 24.6 months (median = 30; 15 days to 144 months). Retinoblastoma was bilateral in 151 (32.3%) and there were 61.7% males. Intraocular disease was seen in 301 patients (451 eyes [72.9%]) and extraocular in 166 patients (167 eyes; 27.0%). Out of the 347 (74.3%) who received treatment, primary treatment was chemoreduction in 228 (65.7%) and enucleation in 117 (33.7%), while 25.6% of patients refused treatment and 151 (43.5%) defaulted therapy. Local recurrence was seen in 20 (4.3%), metastasis in 2 (0.4%), and deaths in 13 (2.8%) (average follow-up 28.5 +/- 44.4 months). Histopathological high risk features were significantly less in the eyes that received chemoreduction (5.0%) versus primary enucleation (20.8%) (p < 0.0004), but there was no difference in the rate of metastasis, recurrence, and death between the two. Conclusions: The majority of retinoblastoma patients in our study had advanced disease, and nearly a third had extraocular extension. There were a significant number of therapy refusals and dropouts. Chemoreduction led to a significant decrease in the histopathological risk factors without affecting the outcomes. PMID- 29344496 TI - Quadruple Neoplasms following Radiation Therapy for Congenital Bilateral Retinoblastoma. AB - Purpose: The aim of this study was to describe a 34-year-old male with hereditary bilateral retinoblastoma treated with radiotherapy as a child who developed 4 distinct tumors within the radiation field. Methods: A 34-year-old male with bilateral retinoblastoma status postradiation therapy and recurrence requiring enucleation presented with left-eye visual acuity changes. Magnetic resonance imaging demonstrated a left orbital mass and a right parasellar complex lobulated mass (right sphenoid and right cavernous sinus). Two weeks later, the patient underwent excision of the orbital mass and biopsy of an upper-lid nodule. This was followed by craniotomy for removal of the complex mass. Results: Histology revealed 4 distinct tumors, including an undifferentiated pleomorphic sarcoma (left orbit), a radiation-induced meningioma (right sphenoid), a schwannoma (right cavernous sinus), and a basal-cell carcinoma (left lid). Conclusion: Although occurrence of a second neoplasm is a well-known outcome following radiation treatment in patients with hereditary retinoblastoma, the diagnosis of 4 additional neoplasms is rare. Pleomorphic sarcoma, radiation-induced meningioma, and schwannoma are uncommon tumors and not well represented in the literature describing irradiated retinoblastoma patients. Secondary malignancies are a leading cause of early death in retinoblastoma survivors, and long-term follow-up is crucial for patient care. PMID- 29344497 TI - A Case of Adenocarcinoma of the Retinal Pigment Epithelium: An Immunohistochemical and Electron Microscopic Study. AB - Purpose: Retinal pigment epithelium (RPE) adenocarcinoma is a very rare malignant intraocular tumor. Herein we describe the histopathological features of RPE adenocarcinoma. Case: A 36-year-old male was referred to our clinic because of floaters in his left eye. The initial diagnosis was malignant melanoma of the choroid. We resected the tumor and studied it histopathologically. The tumor tissue was investigated by light microscopy including immunohistochemistry using antibodies against S-100, HMB-45, EMA, and AE-1. Electron microscopic examination was also performed. Results: The tumor arose from the RPE and contained intracytoplasmic vacuoles and abundant melanin pigment. There were no nevoid cells in the choroid. A small part of the tumor cells showed tubular or lobular proliferation and choroidal invasion. Immunohistochemistry revealed positive staining in tumor cells with 4 antibodies. Tight cellular junctions specific to the RPE were confirmed by electron microscopy. The final diagnosis was RPE adenocarcinoma. Conclusions: Most pigmented intraocular tumors are nevus and malignant melanomas of the choroid. It is easy to misdiagnose a RPE adenocarcinoma as a malignant melanoma of the choroid. An exact differential diagnosis should be determined by immunohistopathological and electron microscopic examination. PMID- 29344498 TI - Selective Intra-Arterial Embolization for Advanced Extrascleral Uveal Melanoma. AB - Purpose: To report a treatment approach for advanced extrascleral uveal melanoma. Methods: We performed clinical examination including magnetic resonance imaging, computed tomography, angiography, and histopathologic analysis. Case: A 49-year old healthy woman presented with a 7-year history of an enlarging pigmented mass in her right orbit. Malignant melanoma was diagnosed after biopsy with immunohistochemical stains. Treatment included selective intra-arterial embolization. Results: A significant reduction in tumor burden was seen 3 months after intra-arterial embolization. No complications were associated with the treatment. Conclusion: Selective intra-arterial embolization may allow adequate palliative therapy in select cases of advanced extrascleral uveal melanoma. PMID- 29344499 TI - Unilateral Multifocal Choroidal Melanoma. AB - We report a case of multifocal choroidal melanoma in the same eye, separated in presentation by 20 years. A 57-year-old Caucasian male initially presented with a choroidal melanoma of the right eye that was treated with transpupillary thermotherapy. Due to recurrence, the patient underwent proton beam therapy with subsequent tumor regression. A second small choroidal lesion was noted in the right eye during his surveillance examinations that was closely monitored and demonstrated stable dimensions and features suggestive of a choroidal nevus. Twenty years after his first presentation, the second lesion exhibited accelerated growth with imaging studies indicative of transformation to a distinct choroidal melanoma. The patient underwent a second globe salvage treatment of proton beam therapy. We describe the clinical course, radiographic, and imaging findings of this rare choroidal melanoma. PMID- 29344500 TI - Pilot Study of a "Large-Eye," Surgically Induced Dry Eye Rabbit Model by Selective Removal of the Harderian, Lacrimal, and Meibomian Glands. AB - Background/Aims: Establish a reliable rabbit dry eye (DE) model. Methods: An interventional cohort study surgically removing glands contributing to the tear film. Eight rabbits were studied after removal of left lacrimal, Harderian, or both glands. Additional rabbits had Meibomian glands in the left eye thermally obstructed. All were followed for 10 weeks with phenol red thread (PRT) and slit lamp examination with 2% fluorescein. We assessed corneal sensitivity using a Cochet-Bonnet esthesiometer. Outcome measures were severity/duration of reduced PRT, punctate epithelial erosions (PEE), and histologic evidence of corneal pannus. Results: Fluorescein staining demonstrated signs of dryness including PEE in all of the interventional eyes. The subjective measurement of epithelial erosions correlated with decreased tear production. PRT measurements in the control eyes averaged 31.54 mm (+/-1.83) and 22.71 mm (+/-1.60) in the eight left eyes, without loss of corneal sensitivity. Conclusions: Surgical removal of either the Harderian or lacrimal gland results in statistically significant decreases in tear volume and the development of severe DE. Removal of both glands results in the occurrence of a DE of comparable severity/duration to removal of either the lacrimal or Harderian gland alone. Meibomian gland obstruction contributes less to the DE model. PMID- 29344501 TI - Pigmented Epithelioid Melanocytoma of the Cheek, Orbit, and Intracranial Cavity: A Case Report. AB - Pigmented epithelioid melanocytoma (PEM) of the skin has been rarely reported in ophthalmology. The purpose of this case report is to present a young male born with a progressive, hyperpigmented lesion involving the orbit and intracranial cavity diagnosed as PEM. The case is unique given the young age and the size, multifocality, and growth of this tumor. Identification of this lesion is paramount due to its low-grade malignant potential. PMID- 29344502 TI - Orbital Epstein-Barr Virus-Positive Polymorphic B-Cell Lymphoproliferative Disorder in an Apparently Immunocompetent Woman. AB - We report a rare case of Epstein-Barr virus (EBV)-positive polymorphic B-cell lymphoproliferative disorder (LPD) involving the lacrimal gland of a 28-year-old, apparently immunocompetent woman. She presented with a chief complaint of orbital swelling and tenderness and was found to have a lesion involving the right lacrimal gland and distal superior and lateral rectus muscles. Histology of the lesion revealed histiocytes with pleomorphic nuclei, reactive lymphocytes, and scattered cells that resembled the Reed-Sternberg (R-S) cells of classical Hodgkin lymphoma. The R-S-like cells were positive for PAX5 and CD30 and negative for CD15, supporting a diagnosis of polymorphic B-cell LPD. In situ hybridization for EBV-encoded RNA demonstrated the presence of EBV. Most EBV-positive polymorphic B-cell LPDs are associated with immunodeficiency. However, the patient described is HIV-negative and has no identifiable defects in immunoglobulin levels or cell-mediated immunity. This raises the question of whether she has an underlying immunodeficiency resulting from subtle changes in T cell physiology, or whether chronic EBV infection contributed to her immune dysfunction through an unclear mechanism. The orbital mass partially regressed with chemotherapy, and the patient has done well clinically with no recurrence of this EBV-LPD for over 2 years. PMID- 29344504 TI - New Findings on the Pathogenesis of Distal Renal Tubular Acidosis. AB - Background: Distal renal tubular acidosis (dRTA) is characterized by an impairment of the urinary acidification process in the distal nephron. Complete or incomplete metabolic acidosis coupled with inappropriately alkaline urine are the hallmarks of this condition. Genetic forms of dRTA are caused by loss of function mutations of either SLC4A1, encoding the AE1 anion exchanger, or ATP6V1B1 and ATP6V0A4, encoding for the B1 and a4 subunits of the vH+ATPase, respectively. These genes are crucial for the function of A-type intercalated cells (A-IC) of the distal nephron. Summary: Alterations of acid-base homeostasis are variably associated with hypokalemia, hypercalciuria, nephrocalcinosis or nephrolithiasis, and a salt-losing phenotype. Here we report the diagnostic test and the underlying physiopathological mechanisms. The molecular mechanisms identified so far can explain the defect in acid secretion, but do not explain all clinical features. We review the latest experimental findings on the pathogenesis of dRTA, reporting mechanisms that are instrumental for the clinician and potentially inspiring a novel therapeutic strategy. Key Message: Primary dRTA is usually intended as a single-cell disease because the A-IC are mainly affected. However, novel evidence shows that different cell types of the nephron may contribute to the signs and symptoms, moving the focus from a single cell towards a renal disease. PMID- 29344503 TI - Genetics of Magnesium Disorders. AB - Background: Magnesium (Mg2+), the second most abundant cation in the cell, is woven into a multitude of cellular functions. Dysmagnesemia is associated with multiple diseases and, when severe, can be life-threatening. Summary: This review discusses Mg2+ homeostasis and function with specific focus on renal Mg2+ handling. Intrarenal channels and transporters related to Mg2+ absorption are discussed. Unraveling the rare genetic diseases with manifestations of dysmagnesemia has greatly increased our understanding of the complex and intricate regulatory network in the kidney, specifically, functions of tight junction proteins including claudin-14, -16, -19, and -10; apical ion channels including: TRPM6, Kv1.1, and ROMK; small regulatory proteins including AC3 and ANK3; and basolateral proteins including EGF receptor, gamma-subunit (FXYD2) of Na-K-ATPase, Kir4.1, CaSR, CNNM2, and SLC41A. Although our understanding of Mg2+ handling of the kidney has expanded considerably in the last two decades, many questions remain. Future studies are needed to elucidate a multitude of unknown aspects of Mg2+ handling in the kidney. Key Message: Understanding rare and genetic diseases of Mg2+ dysregulation has expanded our knowledge and furthers the development of strategies for preventing and managing dysmagnesemia. PMID- 29344505 TI - Genome-Wide Analysis Studies and Chronic Kidney Disease. AB - In recent years, the very high worldwide prevalence of chronic kidney disease (CKD) has led some authors to talk of an "epidemic." The progression of CKD varies considerably among individuals despite similar aetiologies, optimal blood pressure, and glycaemic control. Over the last decade, through genome-wide association studies (GWAS), more than 50 genetic loci have been identified in association with CKD. Understanding the genetic basis of CKD could provide a better knowledge of the biology of the involved pathways, thus potentially leading to novel tools for the diagnosis, prevention, and therapy of CKD. In this review, we will analyse the role of GWAS in the study of CKD. PMID- 29344506 TI - MicroRNAs in Renal Diseases: A Potential Novel Therapeutic Target. AB - Background: MicroRNAs (miRNAs) are a family of short noncoding RNAs that play important roles in posttranscriptional gene regulation. miRNAs inhibit target gene expression by blocking protein translation or by inducing mRNA degradation and therefore have the potential to modulate physiological and pathological processes. Summary: In the kidney, miRNAs play a role in the organogenesis and in the pathogenesis of several diseases, including renal carcinoma, diabetic nephropathy, cystogenesis, and glomerulopathies. Indeed, podocytes, but also the parietal cells of the Bowman capsule are severely affected by miRNA deregulation. In addition, several miRNAs have been found involved in the development of renal fibrosis. These experimental lines of evidence found a counterpart also in patients affected by diabetic and Ig-A nephropathies, opening the possibility of their use as biomarkers. Finally, the possibility to direct target-specific miRNA to prevent the development of renal fibrosis is encouraging potential novel therapies based on miRNA mimicking or antagonism. This review reports the main studies that investigate the role of miRNAs in the kidneys, in particular highlighting the experimental models used, their potential role as biomarkers and, finally, the most recent data on the miRNA-based therapy. Key Messages: miRNAs are crucial regulators of cell function. They are easy to detect and represent potentially good targets for novel therapies. PMID- 29344507 TI - Definition, Management, and Outcomes of Acute Kidney Injury: An International Survey of Nephrologists. AB - Background: Acute kidney injury (AKI) is a complex disease burdened by uncertainties of definition, management strategies, and prognosis. This study explores the relationship between demographic characteristics of nephrologists and their perceptions about the definition, management, and follow-up of AKI. Methods: We developed a Web-based survey, the International Survey on Acute Kidney Injury (ISAKI), consisting of 29 items in 4 categories: (1) demographic and practice characteristics, (2) definition of AKI, (3) management of renal replacement therapy (RRT) in AKI, and (4) sequelae of AKI. A multivariable stepwise logistic regression model was used to examine relationships between the dependent variables and the demographic characteristics of the respondents. Results: Responses from 743 nephrologists from 90 countries were analyzed. The majority (60%) of respondents reported using RIFLE and/or AKIN criteria regularly to define AKI, although US nephrologists were less likely to do so (OR: 0.58; 95% CI: 0.42-0.85). The most common initial RRT modality was intermittent hemodialysis (63.5%), followed by continuous RRT (23.8%). Faculty affiliation was associated with a higher likelihood of using a dialysis schedule of >=4 times a week (OR: 1.75; 95% CI: 1.20-2.55). The respondents believed that a single episode of AKI increases the likelihood of development of chronic kidney disease (CKD) (55%), subsequent AKI (36%), and rapid progression of preexisting CKD (87%). US nephrologists were less likely to recommend follow-up after resolution of AKI (OR: 0.15; 95% CI: 0.07-0.33). Conclusions: Our findings highlight the need for a widely accepted consensus definition of AKI, a uniform approach to management, and improved follow-up after resolution of AKI episodes. PMID- 29344508 TI - Acid-Base and Electrolyte Disorders in Patients with and without Chronic Kidney Disease: An Update. AB - Kidneys play a pivotal role in the maintenance and regulation of acid-base and electrolyte homeostasis, which is the prerequisite for numerous metabolic processes and organ functions in the human body. Chronic kidney diseases compromise the regulatory functions, resulting in alterations in electrolyte and acid-base balance that can be life-threatening. In this review, we discuss the renal regulations of electrolyte and acid-base balance and several common disorders including metabolic acidosis, alkalosis, dysnatremia, dyskalemia, and dysmagnesemia. Common disorders in chronic kidney disease are also discussed. The most recent and relevant advances on pathophysiology, clinical characteristics, diagnosis, and management of these conditions have been incorporated. PMID- 29344509 TI - Review of the Diagnostic Evaluation of Normal Anion Gap Metabolic Acidosis. AB - Background: Normal anion gap metabolic acidosis is a common but often misdiagnosed clinical condition associated with diarrhea and renal tubular acidosis (RTA). Early identification of RTA remains challenging for inexperienced physicians, and diagnosis and treatment are often delayed. Summary: The presence of RTA should be considered in any patient with a high chloride level when the CL /Na+ ratio is above 0.79, if the patient does not have diarrhea. In patients with significant hyperkalemia one should evaluate for RTA type 4, especially in diabetic patients, with a relatively conserved renal function. A still growing list of medications can produce RTA. Key Messages: This review highlights practical aspects concerning normal anion gap metabolic acidosis. PMID- 29344510 TI - Ablation of FGFR2 in Fibroblasts Ameliorates Kidney Fibrosis after Ischemia/Reperfusion Injury in Mice. AB - Background: Fibroblast growth factors (FGFs) are heparin-binding proteins involved in a variety of biological processes. However, the role and mechanisms of FGF/FGFR2 signaling in fibroblast activation and kidney fibrosis need further investigation. Methods: In this study, a mouse model with fibroblast-specific FGFR2 gene disruption was generated. The knockouts were born normal and no kidney dysfunction or histological abnormality was found within 2 months after birth. A kidney ischemia/reperfusion injury (IRI) model was created. Results: Kidney fibrosis was developed in the control littermates within 2 and 4 weeks after IRI, while in the knockouts, total collagen deposition, fibronectin, and alpha smooth muscle actin expression were decreased compared to those in the control littermates. In addition, the numbers of Ki-67-positive interstitial cells as well as TUNEL-positive interstitial cells were lower in the knockout kidneys at 4 weeks after IRI. Phosphorylated extracellular regulated protein kinase 1/2 was decreased in the knockout kidneys at 2 and 4 weeks after IRI compared to those in the control littermates. Conclusion: These results suggest that FGF/FGFR2 signaling may promote the proliferation and activation of kidney fibroblasts, which contribute to the development of kidney fibrosis. PMID- 29344512 TI - Frontiers of Liver Surgery. PMID- 29344511 TI - Crosstalk of Hyperglycemia and Dyslipidemia in Diabetic Kidney Disease. AB - Background: Diabetic kidney disease (DKD) is defined by the functional, structural, and clinical abnormalities of the kidney that are caused by diabetes. Summary: One-third of both type 1 diabetes and type 2 diabetes patients suffer from DKD, which is the leading cause of end-stage renal disease, and is also associated with cardiovascular disease and high public health care costs. Serum glucose level and lipid level are key factors in the pathogenesis of DKD and are modifiable. The goal of this review is to provide an update on the roles of glucose and lipid metabolism in DKD and their crosstalk at the molecular level. We will further discuss the recent advances regarding metabolic nuclear receptors in glucose-lipid crosstalk, which may provide new potential therapeutic targets for DKD. Key Message: AMPK, SREBP-1, and some metabolic hormone receptors including liver X receptors, farnesoid X receptors, and peroxisome proliferator activated receptors mediate the crosstalk of hyperglycemia and dyslipidemia in diabetic kidney disease and might be potential treatment candidates. PMID- 29344513 TI - 'In-Situ Split' Liver Resection/ALPPS - Historical Development and Current Practice. AB - Background: Liver tumors that are extensive, multifocal, or critically located frequently require advanced techniques of liver resection including '!' - enabling liver resection in certain situations. Methods: The development of the technique in the first and the subsequent 8 patients in the index center, and also the method's spread throughout Germany and the world were reviewed. Results: In 2007, in the first patient, the new technique was developed intraoperatively by necessity. Due to the convincing outcome, it was deliberately applied again several months later in another patient, and thereafter (sparsely) used for liver resection for various indications. Following oral communication, the method spread throughout Germany, and later - mainly following the publication of the initial multicentric German series - very quickly disseminated worldwide. Currently, it is used for a very (if not overly) broad spectrum of indications by many hepatobiliary surgery centers. Conclusion: In-situ split/ALPPS is a newly developed technique for liver resection, which was established for very specific situations. This method has created a hype, and is currently used rather generously by many centers worldwide. PMID- 29344514 TI - Portal Vein Embolization: History and Current Indications. AB - Portal vein embolization (PVE) was first adapted for patients undergoing major hepatectomy for hepatocellular carcinoma (HCC). In these patients, PVE caused hypertrophy of the unaffected liver and increased the volumetric ratio of future liver remnant (FLR) to total liver volume. 99mTechnetium-galactosyl human serum albumin (99mTc-GSA) scintigraphy revealed that PVE also induced a shift in hepatic function from the embolized part to the nonembolized part of the liver. Various hepatobiliary malignancies can be treated using PVE, and PVE is increasingly being used to expand the indication for major hepatectomy in patients with initially insufficient FLR volume or function. The indication for PVE is determined by the underlying liver function and standardized FLR volume. In patients with chronic hepatitis, the histologic inflammatory activity was negatively correlated with the increase in FLR volume, and PVE is not suitable for patients with high serum 7s collagen concentrations (>8 ng/ml). This finding may predict the efficacy of PVE. PVE before major hepatectomy can act as a tolerance test to avoid postoperative hepatic failure. PVE also improved long term survival after liver resection in patients with HCC. Presently, PVE is a safe and useful treatment for patients undergoing major hepatectomy. PMID- 29344515 TI - Portal Vein Embolization: State-of-the-Art Technique and Options to Improve Liver Hypertrophy. AB - Portal vein embolization (PVE) is associated with a high technical and clinical success rate for induction of future liver remnant hypertrophy prior to surgical resection. The degree of hypertrophy is variable and depends on multiple factors, including technical aspects of the procedure and underlying chronic liver disease. For patients with insufficient liver volume following PVE, adjunctive techniques, such as intra-portal administration of stem cells, dietary supplementation, transarterial embolization, and hepatic vein embolization, are available. Our purpose is to review the state-of-the-art technique associated with high-quality PVE and to discuss options to improve hypertrophy of the future liver remnant. PMID- 29344516 TI - Hypertrophy and Liver Function in ALPPS: Correlation with Morbidity and Mortality. AB - Background: ALPPS (associating liver partition and portal vein ligation for staged hepatectomy) was introduced with the promise to reduce posthepatectomy liver failure (PHLF) in extended hepatectomies but has higher morbidity and mortality rates compared to conventional methods of volume enhancement. There are few studies of the incidence of PHLF after ALPPS and little information on how to avoid PHLF by functional testing. It remains unclear what causes the compromise in liver function despite rapid volume gain and if any of the modifications proposed reduce the incidence of PHLF. This review summarizes published data on this topic. Methods: This is a systematic review that studies literature on the incidence of liver failure and assessment of liver function following ALPPS as well as modifications of the existing technique. Articles were searched in PubMed, evaluated, selected, and tabulated. Results: The literature search revealed 326 articles that met the selection criteria. PHLF criteria as defined by the International Study Group of Liver Surgery (ISGLS) were the most commonly used criteria, but PHLF was frequently not defined. PHLF occurred most frequently after stage 2 of ALPPS at around 30% in most larger studies. Hepatobiliary scintigraphy showed a discrepancy between volume and functional growth of the liver. Function increase was only 50% compared to volume increase. Mechanistic explanations using histologic analyses have been given to explain the immaturity of the liver after rapid hypertrophy. Modifications of ALPPS showed a comparable volumetric gain when compared to classic ALPPS, but data were lacking to assess PHLF. Conclusion: ALPPS has relatively high rates of PHLF, morbidity, and mortality. This may be explained by data demonstrating functional growth when compared to volume growth. ALPPS should not be performed without functional assessment and with caution. PMID- 29344517 TI - A Comparison of Pitfalls after ALPPS Stage 1 or Portal Vein Embolization in Small for-Size Setting Hepatectomies. AB - Background: Portal vein embolization (PVE) followed by resection and associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) are tools to enable liver resections in small-for-size settings. Methods: A systematic review of the literature and comparison of pitfalls between PVE and resection and after ALPPS stage 1 were performed. Results: Evidence levels were as low as 4 for both procedures. 20 publications were identified with reports on post-PVE or post ALPPS stage 1 pitfalls. A total of 2,758 patients treated with PVE followed by resection and 698 patients undergoing ALPPS were analyzed. Pitfalls identified were failure to advance to resection (PVE: high (20%)/ALPPS: low (1%); p = 0.0001), tumor progression (PVE: high/ALPPS: low); insufficient hypertrophy (PVE: frequent/ALPPS: rare), and inter-stage liver failure (PVE: rare/ALPPS: frequent). However, in-house mortality was still very high after ALPPS (7 vs. 3%, p = 0.0001) in a pooled analysis. Conclusion: PVE is a well-established technique to induce hypertrophy in small-for-size settings. The weakness of PVE is that it may fail to advance to resection. Inter-stage liver failure in ALPPS triggers post stage 2 mortality. Prolongation of the inter-stage interval to overcome liver failure or cancellation of the resection stage combined with adherence to defined indications has the potential to make ALPPS much safer and decrease mortality rates. Level of evidence is low for both techniques. PMID- 29344518 TI - Current Modalities for the Assessment of Future Remnant Liver Function. AB - While imaging studies such as computed tomography or magnetic resonance imaging allow the volumetric assessment of the liver segments, only indirect information is provided concerning the quality of the liver parenchyma and its actual functional capacity. Assessment of liver function is therefore crucial in the preoperative workup of patients who require extensive liver resection and in whom portal vein embolization is considered. This review deals with the modalities currently available for the measurement of liver function. Passive liver function tests include biochemical parameters and clinical grading systems such as the Child-Pugh and MELD scores. Dynamic quantitative tests of liver function can be based on clearance capacity tests such as the indocyanine green (ICG) clearance test. Although widely used, discrepancies have been reported for the ICG clearance test in relation with clinical outcome. Nuclear imaging studies have the advantage of providing simultaneous morphologic (visual) and physiologic (quantitative functional) information about the liver. In addition, regional (segmental) differentiation allows specific functional assessment of the future remnant liver. Technetium-99m (99mTc)-galactosyl human serum albumin scintigraphy and 99mTc-mebrofenin hepatobiliary scintigraphy potentially identify patients at risk for post-resectional liver failure who might benefit from liver-augmenting techniques. As there is no one test that can measure all the components of liver function, liver functional reserve is estimated based on a combination of clinical parameters and quantitative liver function tests. PMID- 29344519 TI - ICG Clearance Test and 99mTc-GSA SPECT/CT Fusion Images. AB - Preoperative estimation of future remnant liver function is critical for major hepatic surgery to avoid postoperative morbidity and mortality. Among several liver function tests, the indocyanine green (ICG) clearance test is still the most popular dynamic method. The usefulness of ICG clearance test parameters, such as ICGR15, KICG, or PDRICG, has been reported by many investigators. The transcutaneous non-invasive pulse dye densitometry system has made the ICG clearance test more convenient and attractive, even in Western countries. The concept of future remnant KICG (rem KICG), which combines the functional aspect and the volumetric factor of the future remnant liver, seems ideal for determining the maximum extent of major hepatic resection that will not cause postoperative liver failure. For damaged livers with functional heterogeneity among the hepatic segments, fusion images combining technetium-99m diethylenetriaminepentaacetic acid-galactosyl human serum albumin single photon emission computed tomography (99mTc-GSA SPECT) and X-ray CT are helpful to precisely estimate the functional reserve of the future remnant liver. Another technique for image-based liver function estimation, gadolinium ethoxybenzyl diethylenetriamine pentaacetic acid(Gd-EOB)-enhanced magnetic resonance imaging, may be an ideal candidate for the preoperative determination of future remnant liver function. Using these methods effectively, morbidity and mortality after major hepatic resection could be reduced. PMID- 29344521 TI - Frontiers of Liver Surgery. PMID- 29344520 TI - Did the International ALPPS Meeting 2015 Have an Impact on Daily Practice? The Hamburg Barmbek Experience of 58 Cases. AB - Background: ALPPS (associating liver partition and portal vein ligation for staged hepatectomy) was introduced only 10 years ago and has gained wide acceptance as a variation of staged procedures in liver surgery. It has been criticized for its high morbidity and mortality, which all centers reported in their initial series. Methods: After a world expert meeting in Hamburg in 2015 where all experts in the field met to discuss this method, caveats were extracted and formulated. We researched our complete prospective ALPPS database to see if the recommendations had any impact on outcome. Results: In total, we performed 58 ALPPS procedures in our center. 33 patients were operated on before, 25 after the meeting. Results in terms of morbidity and mortality were significantly better after the meeting, as were patient selection and strategy. Conclusion: In our own center's experience, the implementation of the meetings' recommendations and the information gathered through this valuable exchange had a dramatic impact on results. Having performed 58 ALPPS procedures in total, we can now conclude that ALPPS has become much safer in our hands since the 2015 meeting and that morbidity and mortality are no longer the issue to be discussed. Future research must focus on oncologic outcomes in these patients. PMID- 29344524 TI - The Professionalization of Iranian hospital social Workers. AB - Introduction: Identity is formed through our understanding of ourselves and what others perceive of our actions and how we do things. Formation of professional identity includes development, advancement and socialization through social learning of specific knowledge and skills obtained within the context of professional roles, new attitudes and values. Methods: This qualitative study used content analysis approach to explain the professionalization process of 22 social workers working in 14 public hospitals in Tehran based on their experiences. The data were collected through semi-structured interviews, observation and writing in the field. Results: Eleven categories and three themes of entry into the profession, identity formation, and identity ownership were extracted out of data analysis. Revealing the process, barriers and facilitators of professionalization of hospital social workers was the results of this study. Conclusion: Certain individual characteristics were factors for the tendency of participants to choose this profession. The participants' understanding of their profession was formed, when studying in the university through learning relevant knowledge, skills, views and professional expectations. Achieving a single identity and professional pride and self-esteem are achievements of identity ownership. PMID- 29344522 TI - Intraductal Papillary Mucinous Neoplasms of the Pancreas: Strategic Considerations. AB - Intraductal papillary mucinous neoplasms (IPMN) are cystic neoplasms with the potential for progression to pancreatic cancer. Recognized by the global medical community just over two decades ago, IPMN have gained great epidemiological and clinical relevance thanks to the widespread use of cross-sectional abdominal imaging, which has led to a surge in the number of incidental pancreatic cysts being diagnosed. As our understanding of this disease has improved, we now know that some IPMN have a very elevated risk of cancer and require surgical resection, while others are low-risk lesions and can be followed. The approach to IPMN must therefore strike a balance between preventing the over-utilization of surgery and the timely recognition and treatment of patients with high-risk lesions. Several clinical, radiographic, and laboratory parameters have been proposed to risk-stratify IPMN, leading to the publication of management guidelines that do not always converge in their recommendations. The goal of this clinical therapeutic review is to describe the strategic approach to IPMN at the Massachusetts General Hospital, and how our current understanding, management algorithm, and future directions have been informed by research efforts at our institution and other centers. PMID- 29344523 TI - Clinical skills temporal degradation assessment in undergraduate medical education. AB - Introduction: Medical students' ability to learn clinical procedures and competently apply these skills is an essential component of medical education. Complex skills with limited opportunity for practice have been shown to degrade without continued refresher training. To our knowledge there is no evidence that objectively evaluates temporal degradation of clinical skills in undergraduate medical education. The purpose of this study was to evaluate temporal retention of clinical skills among third year medical students. Methods: This was a cross sectional study conducted at four separate time intervals in the cadaver laboratory at a public medical school. Forty-five novice third year medical students were evaluated for retention of skills in the following three procedures: pigtail thoracostomy, femoral line placement, and endotracheal intubation. Prior to the start of third-year medical clerkships, medical students participated in a two-hour didactic session designed to teach clinically relevant materials including the procedures. Prior to the start of their respective surgery clerkships, students were asked to perform the same three procedures and were evaluated by trained emergency medicine and surgery faculty for retention rates, using three validated checklists. Students were then reassessed at six week intervals in four separate groups based on the start date of their respective surgical clerkships. We compared the evaluation results between students tested one week after training and those tested at three later dates for statistically significant differences in score distribution using a one-tailed Wilcoxon Mann-Whitney U-test for non-parametric rank-sum analysis. Results: Retention rates were shown to have a statistically significant decline between six and 12 weeks for all three procedural skills. Conclusion: In the instruction of medical students, skill degradation should be considered when teaching complex technical skills. Based on the statistically significant decline in procedural skills noted in our investigation, instructors should consider administering a refresher course between six and twelve weeks from initial training. PMID- 29344525 TI - Psychometric properties of the communication skills attitude scale (CSAS) measure in a sample of Iranian medical students. AB - Introduction: Communication skill (CS) has been regarded as one of the fundamental competencies for medical and other health care professionals. Student's attitude toward learning CS is a key factor in designing educational interventions. The original CSAS, as positive and negative subscales, was developed in the UK; however, there is no scale to measure these attitudes in Iran. The aim of this study was to assess the psychometric characteristic of the Communication Skills Attitude Scale (CSAS), in an Iranian context and to understand if it is a valid tool to assess attitude toward learning communication skills among health care professionals. Methods: Psychometric characteristics of the CSAS were assessed by using a cross-sectional design. In the current study, 410 medical students were selected using stratified sampling framework. The face validity of the scale was estimated through students and experts' opinion. Content validity of CSAS was assessed qualitatively and quantitatively. Reliability was examined through two methods including Chronbach's alpha coefficient and Intraclass Correlation of Coefficient (ICC). Construct validity of CSAS was assessed using confirmatory factor analysis (CFA) and explanatory factor analysis (PCA) followed by varimax rotation. Convergent and discriminant validity of the scale was measured through Spearman correlation. Statistical analysis was performed using SPSS 19 and EQS, 6.1. Results: The internal consistency and reproducibility of the total CSAS score were 0.84 (Cronbach's alpha) and 0.81, which demonstrates an acceptable reliability of the questionnaire. The item-level content validity index (I-CVI) and the scale-level content validity index (S-CVI/Ave) demonstrated appropriate results: 0.97 and 0.94, respectively. An exploratory factor analysis (EFA) on the 25 items of the CSAS revealed 4-factor structure that all together explained %55 of the variance. Results of the confirmatory factor analysis indicated an acceptable goodness-of fit between the model and the observed data. [chi2/df = 2.36, Comparative Fit Index (CFI) = 0.95, the GFI=0.96, Root Mean Square Error of Approximation (RMSEA) = 0.05]. Conclusion: The Persian version of CSAS is a multidimensional, valid and reliable tool for assessing attitudes towards communication skill among medical students. PMID- 29344527 TI - Medical students' experiences and perspective on unprofessional behavior in clinical practice. AB - Introduction: Recognition of professional and unprofessional behaviors is the most important and fundamental factor which affects the relationships between the doctors and patients. Therefore, in order to progress in their professional life, doctors are supposed to understand and follow these behaviors. Methods: This is a cross-sectional, descriptive analytical study. All students in teaching hospital of Shiraz University of Medical Sciences were eligible to participate (374 individuals with census method). The data were collected using a questionnaire containing 29 questions about the concept of medical professionalism. Here, participation of medical students in unprofessional behaviors and the relevance of this participation with the perception of these behaviors were considered. Data were analyzed through SPSS version 15, using descriptive statistics, t-test and Pearson correlation test. Results: According to the obtained data, despite the fact that all students (140 students in the junior and 234 in the senior years as interns) had passed the course of professionalism (95.7%), the perception of unprofessional behaviors between the two groups was significantly different (p<0.001) and the mean of the perception among junior students was higher than the interns. No significant difference was observed in participation in unprofessional behavior rates of the two groups (p=0.451).Moreover, the data did not reveal a strong relationship between participation in unprofessional behavior and what is taught in the curriculum (p=0.079). Conclusion: Medical students' perception of unprofessional behaviors as acceptable may increase their participation in these behaviors. Thus, medical policy makers should consider approaches beyond simply providing ethical and professional guidelines or policies, and students should be regularly evaluated for their activities; their professional behaviors should be evaluated in order to temper them, when appropriate. PMID- 29344526 TI - The effects of team-based learning on learning outcomes in a course of rheumatology. AB - Introduction: We evaluated the effects of implementing Team-Based Learning (TBL) on student engagement, accountability, satisfaction, and preference for lecture or team-based learning. Moreover, we assessed the effect of TBL on knowledge retention and application over time through short answer questions based on clinical scenarios addressing history taking and diagnosis skills in medical students. Methods: The study was conducted in a quasi-experimental design. The study population were all of the third-year medical students (n = 84) participating in a course of rheumatology in Shariati Hospital, which is a teaching hospital affiliated to Tehran University of Medical Sciences. We compared TBL with the conventional lecture-based method. The assessments were performed after implementation of TBL by the Classroom Engagement Survey (CES) and Team-Based Learning Student Assessment Instrument (TBL-SAI). The assessment for application of knowledge was conducted in 3 time-points through short answer questions on rheumatic diseases. The comparison of results was made by Student's t-test and repeated-measures analysis of variance (RM-ANOVA) using SPSS software, version 16. Results: The CES scores indicated a high level of engagement in TBL (Mean+/-SD=26.7+/-3.70, p=0.0001) but not in the lecture-based sessions (Mean+/ SD=23.80+/-4.35, p=0.09). The total mean score (SD) for TBL-SAI was 159.68 (14.14) for TBL sessions indicating a favorable outcome (p=0.0001). The student scores obtained from the short answer questions showed that over time the students' scores had declined significantly less for the TBL sessions in comparison to the lecture-based sessions, F (2, 166) = 4.624, p=0.011. Conclusion: The results indicated higher student engagement, satisfaction and long term learning by TBL. PMID- 29344528 TI - Psychometric characteristics of Clinical Reasoning Problems (CRPs) and its correlation with routine multiple choice question (MCQ) in Cardiology department. AB - Introduction: Clinical reasoning is one of the most important skills in the process of training a medical student to become an efficient physician. Assessment of the reasoning skills in a medical school program is important to direct students' learning. One of the tests for measuring the clinical reasoning ability is Clinical Reasoning Problems (CRPs). The major aim of this study is to measure psychometric qualities of CRPs and define correlation between this test and routine MCQ in cardiology department of Shiraz medical school. Methods: This study was a descriptive study conducted on total cardiology residents of Shiraz Medical School. The study population consists of 40 residents in 2014. The routine CRPs and the MCQ tests was designed based on similar objectives and were carried out simultaneously. Reliability, item difficulty, item discrimination, and correlation between each item and the total score of CRPs were all measured by Excel and SPSS software for checking psycometeric CRPs test. Furthermore, we calculated the correlation between CRPs test and MCQ test. The mean differences of CRPs test score between residents' academic year [second, third and fourth year] were also evaluated by Analysis of variances test (One Way ANOVA) using SPSS software (version 20)(alpha=0.05). Results: The mean and standard deviation of score in CRPs was 10.19 +/-3.39 out of 20; in MCQ, it was 13.15+/-3.81 out of 20. Item difficulty was in the range of 0.27-0.72; item discrimination was 0.30 0.75 with question No.3 being the exception (that was 0.24). The correlation between each item and the total score of CRP was 0.26-0.87; the correlation between CRPs test and MCQ test was 0.68 (p<0.001). The reliability of the CRPs was 0.72 as calculated by using Cronbach's alpha. The mean score of CRPs was different among residents based on their academic year and this difference was statistically significant (p<0.001). Conclusion: The results of this present investigation revealed that CRPs could be reliable test for measuring clinical reasoning in residents. It can be included in cardiology residency assessment programs. PMID- 29344529 TI - Internationalization of medical education in Iran: A way towards implementation of the plans of development and innovation in medical education. AB - Introduction: Academic institutions are the most important organizations for implementation of internationalization policies and practices for integrating an international, intercultural and global dimension in higher education system. Also, a globally increasing demand for higher education has been seen in the past two decades so that the number of students enrolled in higher education institutions in the worldwide nation-states has increased dramatically. The National Plan of International Development of Medical Education was designed with the aim of identifying available potentials in all the universities of medical sciences, encouraging the development of international standards of medical education, and planning for the utilization of the existing capacity in Islamic republic of Iran. Methods: Authors have tried to review the several aspects of international activities in higher education in the world and describe national experiences and main policies in globalization of medical education in Iran within implementation of the National Plan for Development and Innovation in Medical Education. Results: The findings of some global experiences provide the policy makers with clear directions in order to develop internationalization of higher education. Conclusion: The Program for International Development of Medical Education was designed by the Deputy of Education in the Ministry of Health and the effective implementation of this Program was so important for promotion of Iranian medical education. But there were some challenges in this regard; addressing them through inter-sectoral collaboration is one of the most important strategies for the development of internationalization of education in the field of medical sciences. PMID- 29344530 TI - Female role models in medicine: a medical student's perspective. PMID- 29344531 TI - Factors Affecting the Place of Delivery among Mothers Residing in Jhorahat VDC, Morang, Nepal. AB - Background: In Nepal, the maternal mortality ratio is 281 per thousand live births, among which 40% mortality occurs during home delivery. Home delivery increases the risk of maternal and neonatal mortality and morbidity due to the birth not assisted by skilled attendant. This study was carried out to determine the factors affecting the place of delivery among the mothers residing in Jhorahat VDC, Morang district, Nepal. Methods: A mixed method study using interviews based on semi-structured questionnaire (n=93) among mothers and two focus group discussion among decision makers of the house and female community health volunteers was conducted between November to December 2012. For quantitative data, Chi-square test and Fischer's Exact test were used to examine the association between the selected variables and place of delivery. Results: More than half (58.1%) of the mothers had institutional delivery and 41.9% of them had home delivery. The most common reason for home delivery was easy and convenient environment (66.7%) and that for institutional delivery was safety (77.8%). There was a significant association between caste, education of mothers, education of spouse, occupation of spouse, per capita income, time to reach the nearest health center, parity, previous place of delivery, number of antenatal visit, knowledge about place of delivery, planned place of delivery, and place of delivery. Conclusion: Maternal health services, such as prenatal care, skilled assistance during delivery and post-natal care, along with adequately equipped health institutions, play a major role in the reduction of maternal morbidity and mortality. Concerted efforts should be made both at community and government levels to increase institutional delivery. PMID- 29344532 TI - Functional Ability of Clients with Bipolar Disorders in Tertiary Hospital, Puducherry. AB - Background: Bipolar Disorder (BD) is a common long standing mental illness which is episodic in nature, affecting approximately1-2% of the world adult population. BD frequently affects the patient's life. Few studies have examined the functional impairment in patients with affective illness. The main objective of the current study was to assess specific domains of functioning as well as the overall functioning of the clients with BD. Methods: This cross-sectional study aimed to assess the level of function among the clients with BD in JIPMER Hospital, Puducherry during 2015-2016 and to identify the socio- demographic and clinical factors associated with the level of functioning. Ninety clients who fulfilled the inclusion criteria of having the diagnosis of BD were selected after written informed consents were obtained. After collecting basic demographic and clinical variables, function was assessed using 2 different sets of tools LIFE-RIFT and FAST. Data were analyzed using SPSS 20. Independent sample t-test, ANOVA and Pearson correlation were used as different statistical methods. A P value less than .05 was considered as statistically significant. Results: Based on the results, the functional level assessed using LIFE -RIFT showed a mean score of 26.7+/-4.7for the admitted clients and 21+/-12.5 for outpatients. The functional level of clients was significantly related to admission and remission status of the clients with a P=0.001 Similarly, FAST scale score for the admitted clients was 51+/-4.5, clients on remission had 24+/-12.1 with a P=0.001. Conclusion: Results revealed that even during remission the clients with BD had functional impairment. More interventions are needed to improve the functional ability of clients with BD. PMID- 29344533 TI - The Effect of Family-Centered Empowerment Program on Self-Efficacy of Adolescents with Thalassemia Major: A Randomized Controlled Clinical Trial. AB - Background: Chronic nature of thalassemia causes changes in different aspects of life in patients, including their self-efficacy. The aim of this study was to determine the effect of family-centered empowerment program on the self-efficacy of adolescents with Thalassemia major. Methods: A quasi-experimental study was performed on adolescents with thalassemia major in 2013 in Bandar Abbas, Iran. The participants were divided into intervention and control groups, respectively. Research instruments included demographic data questionnaire, need assessment self-made questionnaire, general self-efficacy scale, and sickle cell self efficacy scale. After collecting the data from the pre-intervention step, family centered empowerment program was implemented for the intervention group and secondary test was conducted six weeks after the intervention and the results were analyzed by statistical SPSS-21 software, using independent t-test, paired t test, Chi-square and Fisher's exact test, and descriptive statistics. A significance level of P<0.05 was considered as significant. Results: The mean and standard deviation of the adolescents' age were 16+/-1.9 in the intervention group and 15.2+/-2 in the control group. Independent t-test showed a significant difference between the two groups after the intervention for both self-efficacies (P<0.01 and P=0.02). In the control group, the results of general self-efficacy scores after six weeks' time were reduced compared to the previous one while disease-related self-efficacy scores in the same group after six weeks' time increased and paired t-test indicated a significant difference in the mean scores for both self-efficacies in both groups. Conclusion: Implementation of family centered empowerment program for patients with thalassemia major is practically feasible and it can increase self-efficacy in these patients. It is suggested that the program should be used in comprehensive care protocols of children and adolescents. Trial Registration Number: IRCT201407211788N8. PMID- 29344534 TI - The Effect of Self-Care Education on Emotional Intelligence and HbA1c level in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Clinical Trial. AB - Background: The role of Emotional Intelligence (EI) in glycemic control in type 2 Diabetes Mellitus (DM) has not been fully understood. The present study aimed to investigate the effect of self-care education on EI and hemoglobin glycosylated (HbA1c) in patients with type 2 diabetes. Methods: In this randomized controlled clinical trial, 48 patients with type 2 DM referred to Shahid Motahari Diabetes Center in 2015 were divided into an intervention and a control group using block randomization. The study data were collected using Bar-On questionnaire and blood testing immediately and two months after the intervention. The educational content was presented to the intervention group through 1-1:30-hour sessions held once a week for 8 continuous weeks. The control group, however, only received the clinic's routine cares. Results: The results showed a significant difference in the mean level of HbA1c in the intervention group before and two months after the intervention (P=0.003). However, this difference was not significant in the control group. Moreover, the mean of EI was higher in the intervention group compared to the control group (P=0.08). Conclusion: Self-care education improved the HbA1c level and EI among the patients with type 2 DM. Therefore, it is recommended that health care providers, specially nurses, should train the diabetic patients for self-care, which can lead to better glycemic control. Trial Registration Number: IRCT201408188505N7. PMID- 29344535 TI - Sexual Experience of Iranian Women in Their Middle Life: A Qualitative Approach. AB - Background: Sexual problems are common among the middle-aged women; however, there is no deep understanding of sexuality in midlife. The current study aimed to investigate Iranian women's attitudes and experiences about sexual life changes in midlife. Methods: This is a descriptive qualitative study. Seventeen women aged 40 -65 years old were purposively selected from urban health centers in Gorgan, Iran, in 2015. Face-to-face, semi-structured and in-depth interviews were conducted for data collection until data saturation was attained. The resulting data were analyzed based on Graneheim and Lundman's approach. MAXQDA 10 was used for organization of data. Results: Data analysis demonstrated seventh sub-themes and three themes. The emerged themes were entitled (1) "Continuous paradox over being a sexual agent" with three subthemes of beliefs on asexuality as socially accepted view for women in midlife, changing in motivation for sex and changing in sexual performance, (2) "Considering menopause; opportunities and threats for sexual life" with two subthemes of menopause related cons for sexual life and menopause related pros in sexual life, and (3) "Coping strategies for changes in sexuality in midlife" with two subthemes of different psychological reactions to changes that have influenced the sex and take practical steps for restoration of sexual attraction. Conclusion: The findings demonstrated that middle-aged women in a male-dominant culture encounter paradox over being a sexual agent. In a bio-psycho-social approach, they perceived menopause as an opportunity or threat for their own sexuality. Following the conflicts, threats and changes of sexuality in midlife, they adopt diverse coping strategies to improve their sexual relationships and preserve their family. PMID- 29344536 TI - A Cry for Help and Protest: Self-Immolation in Young Kurdish Iraqi Women -A Qualitative Study. AB - Background: Suicide is a major psychiatric emergency that has always been a topic of great interest to researchers. Self-immolation is a heinous suicide method that is common in Eastern societies. The present study was conducted to explore probable issues which might lead to self-immolation in young Kurdish Iraqi women. Methods: The present qualitative study was conducted in Soran, Erbil Governorate in Iraq, and the surrounding villages of Soran District (March 2015 to May 2016). Using purposive sampling, we conducted 24 in-depth interviews with women who had done self-immolation. The obtained data were analyzed using conventional content analysis. Results: The analysis of the data obtained from the interviews led to the extraction of five categories which seems to be related to self-immolation attempts, including not having control over personal life, marital conflicts, seeking attention, instilling guilt in the family members, and resentment towards male dominant community. Conclusion: Self-immolation is a multidimensional phenomenon that has not come to exist overnight and is rooted in various factors that join to encourage self-immolation attempts by women in critical situations. Comprehensive preventive strategies, such as cultural changes, along with education are required to help lower the rate of self-immolation. PMID- 29344537 TI - The Relationship between Health Literacy and Health Promoting Behaviors in Patients with Type 2 Diabetes. AB - Background: Health promoting behaviors are known to be a key factor in managing type 2 diabetes and improving the quality of life in diabetic patients. However, there is little known about the factors influencing these behaviors in diabetic patients. This study aimed to find the relationship between the health literacy and health promoting behaviors in patients with type II diabetes. Methods: This correlational study was conducted from August to September 2016 on 175 eligible diabetic patients (20 to 65 year-old) who referred to the selected centers of diabetes control in Ahvaz City. Patients were chosen using convenience non probable sampling. Data were collected by diabetic patients' health promoting behaviors' questionnaire and health literacy questionnaire. Data were analyzed using SPSS 22, descriptive statistics and Pearson's correlation coefficient. Result: The mean scores for health promoting behaviors and health literacy were determined 100.45+/-19.82 and 76.14+/-15.26, respectively. The highest and lowest scores in health promoting behaviors belonged to nutrition (26.11+/-6.85) and physical activity (6.70+/-2.75), respectively. There was a significant relationship between all dimensions of health promoting behaviors and health literacy (P<0.05). Conclusion: Since health literacy has a positive relationship with health promoting behaviors in diabetic patients, health care providers need to concentrate on increasing the health literacy of their patients rather than solely concentrating on increasing their knowledge, thereby facilitating the development of health promoting behaviors in patients. PMID- 29344538 TI - Lived Experiences of Mothers with Diabetic Children from the Transfer of Caring Role. AB - Background: Following the confirmed type 1 diabetes in children and their discharge from the hospital, the care responsibilities are transferred from nurses to mothers. These mothers are faced with many challenges to play this caring role. The aim of this study was to explore the experiences of the diabetic children's mothers from the transfer of caring role. Methods: In 2016, semi structured interviews with Eleven Iranian mothers of children (aged<=14 year) with type 1 diabetes were conducted. Data were analyzed using Colizzi's phenomenological method. Results: The following themes emerged in this study: 'Facing the care management challenges,' 'care in the shadow of concern', and 'hard life in the impasse of diabetes'. Conclusion: The mothers of children with type 1 diabetes, who undertake the caring role that has been transferred to them by healthcare providers, are faced with many challenges. They feel a lot of concerns and experience a hard life. Thus, understanding the experiences of these mothers by the health professionals, to improve the quality of care, is necessary. PMID- 29344539 TI - Agreement between Heart Failure Patients and Their Primary Caregivers on Symptom Assessment. AB - Background: To decrease the readmission rate of heart failure (HF) patients, patients and their caregivers (CGs) should participate in symptoms assessment. This study aimed to assess the agreement between HF patients and their CGs on symptoms assessment. Methods: Using a correlational design, 100 HF patients with their CGs (100 dyads) were recruited from Department of Cardiology, Iranshahr, during August-December 2014. Data were collected using modified Heart Failure Symptom Survey (HFSS).Pearson and intra-class correlation coefficients (ICC) were used to analyze the degree of agreement within HF dyads, using SPSS16. The level of significance was set at 0.05. Results: The most frequent and severe symptom assessed equally by partners was shortness of breath (SOB). Dyads had a good agreement on assessment of extremity swelling (r=0.87, P<=0.01, ICC=0.861 CI: 0.798-0.901), SOB at rest (r=0.83, P<=0.01, ICC=0.775, CI: 0.680-0.845), SOB with activity (r=0.81, P<=0.01, ICC=0.795 CI: 0.711-0.858), and feeling depressed (r=0.77, P<=0.01, ICC=0.769, CI: 0.675-0.838). 28.6% of HF dyad had a good, 50% had a moderate, and 21.4 % had a poor agreement in assessment of HF symptoms. Conclusion: Most of the HF dyad members did not agree with each other on the assessment of symptoms. Knowledge, skills and ability of each dyad in HF symptoms assessment should be included in the patients' discharge planning and nurses must modify their misunderstanding or inability. PMID- 29344540 TI - Standing Height as a Prevention Measure for Overuse Injuries of the Back in Alpine Ski Racing: A Kinematic and Kinetic Study of Giant Slalom. AB - Background: In alpine ski racing, typical loading patterns of the back include a combined occurrence of spinal bending, torsion, and high peak loads. These factors are known to be associated with high spinal disc loading and have been suggested to be attributable to different types of spine deterioration. However, little is known about the effect of standing height (ie, the distance between the bottom of the running surface of the ski and the ski boot sole) on the aforementioned back loading patterns. Purpose: To investigate the effect of reduced standing height on the skier's overall trunk kinematics and the acting ground-reaction forces in giant slalom (GS) from an overuse injury prevention perspective. Study Design: Controlled laboratory study. Methods: Seven European Cup-level athletes skied a total of 224 GS turns with 2 different pairs of skis varying in standing height. Their overall trunk movement (frontal bending, lateral bending, and torsion angles) was measured based on 2 inertial measurement units located at the sacrum and sternum. Pressure insoles were used to determine the total ground-reaction force. Results: During the turn phase in which the greatest spinal disc loading is expected to occur, significantly lower total ground-reaction forces were observed for skis with a decreased standing height. Simultaneously, the skier's overall trunk movement (ie, frontal bending, lateral bending, and torsion angles) remained unwaveringly high. Conclusion: Standing height is a reasonable measure to reduce the skier's overall back loading in GS. Yet, when compared with the effects achievable by increased gate offsets in slalom, for instance, the preventative benefits of decreased standing height seem to be rather small. Clinical Relevance: To reduce the magnitude of overall back loading in GS and to prevent overuse injuries of the back, decreasing standing height might be an efficient approach. Nevertheless, the clinical relevance of the current findings, as well as the effectiveness of the measure "reduced standing height," must be verified by epidemiological studies before its preventative potential can be judged as conclusive. PMID- 29344541 TI - Bony Maturity of the Tibial Tuberosity With Regard to Age and Sex and Its Relationship to Pathogenesis of Osgood-Schlatter Disease: An Ultrasonographic Study. AB - Background: Although tensile force on an immature tibial tuberosity is considered the main cause of Osgood-Schlatter disease (OSD), the relationship between bony maturity and the pathogenesis of OSD remains obscure. Purpose: To survey the bone maturation process of the tibial tuberosity by age and sex and clarify its relationship to OSD. Study Design: Cross-sectional study; Level of evidence, 3. Methods: A total of 731 Japanese basketball players aged 6 to 14 years were enrolled in this study. Ultrasonographic examination was performed in all participants (1462 knees) to evaluate the bony maturity of the tibial tuberosity by use of the Ehrenborg classification. The age- and sex-specific prevalence of each stage was investigated, and the prevalence of symptomatic OSD and its relationship with bony maturity were also assessed. Results: The process of bone maturation occurred 1 to 2 years earlier in female participants compared with male participants. Among female participants, 59.2% were already at the epiphyseal stage (stage E) by 10 years of age, and 47.4% were skeletally mature by 14 years. Among male participants, conversely, only 8.0% were at stage E by 10 years of age, and only 13.8% were skeletally mature by 14 years. The overall prevalence of symptomatic OSD was 6.8% (males, 6.4%; females, 7.2%), and the onset was 1 year earlier in the female participants. The prevalence of symptomatic OSD tended to increase with age and bony maturity, significantly increasing from the cartilaginous stage (stage C) to the apophyseal stage (stage A) (odds ratio, 9.48) and from stage A to stage E (odds ratio, 2.22). Conclusion: The tibial tuberosity matures earlier in female participants. The risk of OSD is greater in stage A than stage C and in stage E than stage A. The risk of OSD increases with age in males but not in females. PMID- 29344542 TI - Ruxolitinib for essential thrombocythemia? PMID- 29344543 TI - Targeting H(i)ck education for cancer therapy? PMID- 29344544 TI - Multiple pro-tumor roles for protein acyltransferase DHHC3. PMID- 29344545 TI - In vivo pieces of the PP2A onco-puzzle fallen into place. PMID- 29344546 TI - RUNX3 loss turns on the dark side of TGF-beta signaling. PMID- 29344547 TI - Mesenchymal stem cells in breast cancer: response to chemical and mechanical stimuli. PMID- 29344548 TI - Recombinant ADAMTS 13 in thrombotic thrombocytopenic purpura. PMID- 29344549 TI - E-cadherin and K-ras: implications of a newly developed model of gastric cancer. PMID- 29344550 TI - Neutrophils and anti-cancer immunity: a paradigm shift in cancer immunotherapy. PMID- 29344551 TI - Cell-autonomous and non-autonomous functions of S100A4 in regulating stemness, mesenchymal transition, and metastasis. PMID- 29344552 TI - Collagen and Calcium Binding EGF Domains 1 (CCBE1) in cancer - a new role past lymphatics? PMID- 29344553 TI - Reprogramming patient-derived tumor cells generates model cell lines for tuberous sclerosis-associated lymphangioleiomyomatosis. PMID- 29344554 TI - Pulling the plug - halting cancer's theft of mitochondria. PMID- 29344555 TI - Destroying the androgen receptor (AR)-potential strategy to treat advanced prostate cancer. PMID- 29344556 TI - Extracellular matrix composition modulates angiosarcoma cell attachment and proliferation. AB - Angiosarcoma is a rare and generally fatal tumor composed of aberrant cells of endothelial origin. Because of its infrequency in humans, very little is known about the growth requirements of this vascular sarcoma. Unlike the rapidly proliferating solid tumors from which they are isolated from, many of the established angiosarcoma cell lines exhibit less than robust growth in culture and often fail to form tumors in xenograft models. In order to better understand angiosarcoma in vitro growth conditions, we focused on a singular aspect of their culture-adhesion to the extracellular matrix-in order to identify attachment substrates that may facilitate and/or enhance their growth in tissue culture. Our data indicates that the extracellular matrix of angiosarcomas contains similar protein compositions to that of non-diseased endothelial cells. Moreover, angiosarcoma cell lines exhibited strong attachment preference to substrates such as collagen I or fibronectin, and less preference to collagen IV, laminin, or tropoelastin. Growth on preferred extracellular matrix substrates promoted mitogenic signaling and increased proliferation of angiosarcoma cell lines. These findings provide insight that may lead to more successful in vitro growth of angiosarcoma cell lines. PMID- 29344557 TI - In colonic rho0 (rho0) cells reduced mitochondrial function mediates transcriptomic alterations associated with cancer. AB - Background: Mitochondrial reprogramming has emerged as a hallmark of cancer pathobiology. Although it is believed this reprogramming is essential for cancer cells to thrive, how it supports cancer pathobiology is unclear. We previously generated colonic rho0 (rho0) cells with reduced mitochondrial energy function and acquired their transcriptional signature. Here, we utilized a bioinformatics approach to identify their changes linked to cancer pathobiology. Methods: Human colon cancer HCT116 cells, control and rho0, were used for qPCR. Bioinformatics analysis: GeneCards, Kaplan-Meier Survival, GENT, cBioPortal. Results: The colonic rho0 transcriptome was linked with proliferation, DNA replication, survival, tumor morphology, and cancer. Among differentially expressed transcripts, 281 were regulators or biomarkers of human colon cancer especially those with inflammatory microsatellite instability (MSI). We identified and validated novel transcripts in rho0 cells with altered expression in human colon cancer. Among them DGK1, HTR7, FLRT3, and ZBTB18 co-occurred with established regulators of human colon cancer pathobiology. Also, increased levels of DGKI, FLRT3, ZBTB18, and YPEL1 as well as decreased levels of HTR7, and CALML6 were linked to substantially poorer patient survival. Conclusion: We identified established and novel regulators in colon cancer pathobiology that are dependent on mitochondrial energy reprogramming and linked to poorer patient survival. PMID- 29344558 TI - Therapeutic potential of bleomycin plus suicide or interferon-beta gene transfer combination for spontaneous feline and canine melanoma. AB - We originated and characterized melanoma cell lines derived from tumors of two feline and two canine veterinary patients. These lines reestablished the morphology, physiology and cell heterogeneity of their respective parental tumors. We evaluated the cytotoxicity of bleomycin (BLM) alone, or combined with interferon-beta (IFN-beta) or HSVtk/GCV suicide gene (SG) lipofection on these cells. Although the four animals presented stage III disease (WHO system), SG treated feline tumors displayed stable disease in vivo, while the canine ones exhibited partial response. Their derived cell lines reflected this behavior. Feline were significantly more sensitive than canine cells to IFN-beta gene transfer. BLM improved the antitumor effects of both genes. The higher levels of reactive oxygen species (ROS) significantly correlated with membrane and DNA damages, emphasizing ROS intervention in apoptotic and necrotic cell death. After 3 days of BLM alone or combined with gene treatments, the colony forming capacity of two canine and one feline treatments survivor cells almost disappeared. Taken together, these results suggest that the treatments eradicated tumor initiating cells and support the clinical potential of the tested combinations. PMID- 29344559 TI - Infant Feeding Regimens and Gastrointestinal Tolerance: A Multicenter, Prospective, Observational Cohort Study in China. AB - To study feeding tolerance in infants fed formula with increased sn-2 palmitate and oligofructose (sn-2+OF) in a real-world setting, healthy Chinese infants were enrolled in this 48-day observational study on their current feeding regimens: exclusively breastfed (BF; n = 147), exclusively sn-2+OF formula-fed (FF; n = 150), or mixed-fed with breast milk and sn-2+OF formula (MF; n = 163). Throughout the study, incidence (90% confidence interval) of hard stools was <=2.1% (0.0 5.3) in FF and 0.8% (0.0-3.5) in MF, with no hard stools in BF. Incidence of watery stools was <=5.0% (1.0-9.2) in FF and >=5.1% (2.4-9.3) in MF and BF. Gastrointestinal tolerance scores, although low in all groups (lower scores indicating better tolerance), were slightly higher (P >= .03) in FF (17.5 +/- 4.8) and MF (18.2 +/- 5.0) versus BF (16.3 +/- 3.2) at mid-study; this difference disappeared at study end. Overall, low incidences of hard and watery stools and good feeding tolerance were observed in infants fed sn-2+OF formula. PMID- 29344560 TI - Nonbilious Vomiting in a 4-Week-Old Male: A Case Report and Review of the Literature. PMID- 29344561 TI - Self-expandable metal stent placement in a child for treatment of achalasia after failed Heller myotomy. AB - Background and study aims Childhood achalasia treatment remains inconclusive. What is next after myotomy failure? Repeated pneumatic-dilation put patients at greater risk of perforation with possible symptom recurrence. We report on a 12 year-old patient with a 1-year history of achalasia whom underwent Heller myotomy with fundoplication and recurred with symptoms 1 week after surgery. Pneumatic dilatation was considered but not done because of the risk of esophageal perforation. The decision was made to place a fully covered self-expanding metallic stent (FC-SEMS) for 3 months, which resolved the stenosis as confirmed by esophagram. The patient has remained asymptomatic since the procedure was performed 2 years ago. FC-SEMS is an alternative for treatment of refractory achalasia in children who do not respond to conventional treatment. PMID- 29344562 TI - Endoscopic ultrasound-guided choledochoduodenostomy using partially-covered self expandable metal stent in patients with malignant distal biliary obstruction and unsuccessful ERCP. AB - Background and study aims : Endoscopic ultrasound-guided choledochoduodenostomy (EUS-CDS) is an alternative to percutaneous transhepatic biliary drainage (PTBD) for patients with malignant distal biliary obstruction in whom ERCP has failed. We studied technical success, clinical success, stent patency rate and occurrence of adverse events in patients undergoing EUS-CDS with partially-covered self expanding metal stent (PCSEMS). Patients and methods : Medical records of consecutive patients with unresectable malignant distal biliary obstruction requiring biliary drainage who underwent EUS-CDS because of failure of attempt at ERCP were reviewed. EUS-CDS was done using 6-cm, PCSEMS (Wallflex, Boston Scientific). Technical success, clinical success (more than 50 % reduction in total bilirubin at 2 weeks post-procedure), stent patency rate and adverse events (AEs) were assessed. Patients were followed up for 3 months post-procedure. Results : Between January 2015 and December 2016, 30 patients underwent EUS-CDS, including 20 (67 %) with failed biliary cannulation and 10 (33 %) with duodenal stenosis. Technical success was achieved in 28 patients, all of whom also had clinical success. Median total serum bilirubin decreased from 20 mg/dL to 5 mg/dL at 2 weeks post-procedure. Three patients (10 %) had adverse events (bile leak, hemobilia, stent block in one patient each; no stent migration); none of these adverse events was major and all were managed successfully. There were no procedure-related deaths. Five patients died of disease progression in the 3 month period post-procedure, and the 3-month dysfunction-free stent patency rate was 83 %. Conclusion : EUS-CDS with a PCSEMS has a high technical and clinical success. Adverse events were infrequent, minor and could be managed easily. PMID- 29344563 TI - The use of fully-covered self-expanding metallic stents for intraprocedural management of post-sphincterotomy perforations: a single-center study (with video). AB - Background and study aims : Management of post-sphincterotomy perforations is variable, with some patients managed conservatively and other requiring surgery. Fully-covered self-expanding metal stents (FCSEMs) have been used in the past, but data is limited. The aim of this study was to report the clinical characteristics and outcomes following placement of anchored FCSEMSs for the immediate management of post-sphincterotomy perforation. Patients and methods : All patients undergoing an ERCP procedure between June 2011 and December 2015 at our institution were reviewed for post-sphincterotomy perforation. All intra procedurally recognized perforations underwent placement of FCSEMs with flexible anchoring fins and were included in this study. Data extracted included patient demographics, indication, peri-procedural details, clinical course and long-term outcome following anchored FCSEMS placement. Results : A total of 15 patients (12 females, median age-66 years) with post-sphincterotomy perforation were included. Major indications included choledocholithiasis in 9 (60 %), and 5 (33.3 %) patients had intra-ampullary or periampullary diverticula. All patients underwent placement of FCSEMS without any complication and had immediate resolution of perforation as evidenced by decrease in fluoroscopic gas and lack of contrast extravasation. None of the patients became symptomatic or needed surgery with a median 2 days of hospitalization following the procedure. Stents were removed after a median of 30.5 days and no complications were noted during follow-up after stent removal. Conclusions : Anchored FCSEMs are safe and effective for management of intra-procedurally recognized post-sphincterotomy perforations and obviates need for surgery. PMID- 29344564 TI - Endoscopic ultrasound guided needle-based confocal laser endomicroscopy in solid pancreatic masses - a prospective validation study. AB - Background and study aims: Endoscopic ultrasound fine-needle aspiration (EUS FNA) is a keystone in diagnosing and staging of pancreatic masses. Recently, a microfiber that can pass through a 19-gauge needle has been introduced for confocal laser endomicroscopy (nCLE). The aims of this study were to evaluate the diagnostic value and the reproducibility of nCLE criteria for solid malignant lesions. Patients and methods: This prospective dual-center study included patients with pancreatic masses suspicious of malignancy referred for EUS-FNA. Endomicroscopic imaging was performed under EUS-guidance until organ-specific structures were obtained. Afterwards, standard cytology was obtained and patients were followed for up to 12 months. All nCLE parameters included in former studies were correlated with the final diagnosis (dark lobular structures/normal acinar cells, dark cell aggregates > 40 um, dilated irregular vessels with fluorescein leakage, fine white fibrous bands, small black cell movements, pseudoglandular structures). Finally, three CLE novices and three CLE experts assessed the unedited movies from all patients. Results: Twenty-eight patients were enrolled in the study. A final diagnosis was obtained in 24 patients (86 %). One patient (3 %) died before a diagnosis was obtained, while 3 were lost to follow-up (11 %). In 18/24 patients (74 %) the diagnosis was malignant. The mean sensitivity, specificity, and accuracy for the nCLE parameters ranged from 19 - 93 %, 0 - 56 %, 26 - 69 %, respectively. The inter-observer values ranged from kappa = 0.20 - 0.41 for novices and kappa = -0.02 - 0.38 for experts. Conclusions: The diagnostic value of nCLE in solid pancreatic masses is questionable and the inter observer agreement for both novices and CLE experts appears limited. PMID- 29344565 TI - A novel method of endoscopic-assisted esophageal clearance in advanced achalasia. AB - Background and study aims : In order to perform peroral endoscopic myotomy (POEM) safely, retained liquid and food debris must be removed before the procedure is started. We developed a novel technique using a super-slim gastroscope, and a gastric tube to remove retained food debris in achalasia patients. In this study, the safety and efficacy of this novel technique were investigated. Patients and methods : Eleven patients with achalasia were enrolled in this study and underwent this novel method for esophageal clearance. Results: All patients had complete clearance of the retained food debris using this method. The median procedure time (range) was 13 (6 - 30) minutes. There were no serious adverse events (AEs) and one minor AE of mucosal erythema due to mucosal suctioning. Conclusion: This novel method for esophageal clearance is safe and effective in achalasia patients with large amounts of retained food debris. PMID- 29344567 TI - Response to letter to the editor - "Training in ERCP: a multifaceted enterprise now more than ever". PMID- 29344566 TI - Training in ERCP: a multifaceted enterprise now more than ever. PMID- 29344568 TI - Non-surgical management of Boerhaave's syndrome: a case series study and review of the literature. AB - Background and study aims: Boerhaave's syndrome (BS) is a life-threatening condition with morbidity and mortality rates as high as 50 % in some reports. Until recently, surgical intervention has been the mainstay of management plans. With advances in therapeutic endoscopy, however, there has been increasing interest in non-surgical options including endoscopic esophageal stenting. Patients and methods: We reviewed the medical records of all patients diagnosed with BS and managed with endoscopic interventions between November 2011 and November 2016. The following variables were collected: patient demographics, clinical presentations, locations of esophageal perforation, primary interventions, complications, and outcomes. Results: Six patients were found to be diagnosed with BS during the study period. The median age at presentation was 55. There were 4 males and 2 females. The most common site of perforation was in the distal esophagus. The most common presenting symptom was chest pain (67 %) following an episode of vomiting or retching. Four patients (66.7 %) developed septic shock. Endoscopic treatment with a fully covered esophageal stent was the primary intervention in all patients (100 %). Interventional radiology was consulted in all cases for fluid drainage and chest tube placements. Clinical resolution of the BS was achieved in all patients (100 %) without any subsequent surgical interventions. There were no deaths within the study group, and the average follow-up duration was 2 years. Conclusion: Endoscopic treatment seems to be an effective management strategy in patients with BS. We also noted satisfactory results in patients presenting with sepsis, presumably due to urgent, interventional radiology-guided fluid drainage. PMID- 29344569 TI - Endoscopic full-thickness resection with an over-the-scope clip device (FTRD) in the colorectum: results from a university tertiary referral center. AB - Background and study aims: The full-thickness resection device (FTRD) represents a novel endoscopic treatment method for lesions unresectable with conventional endoscopic techniques. The overall aim of this study was to evaluate technical success and in toto resection rates, recurrence rates, as well as immediate or late complications in patients who underwent polyp removal with the FTRD. Patients and methods: Data from a prospectively collected database of 12 patients who underwent 13 over-the-scope clip-based full-thickness resections between June 2015 and June 2017 were analyzed. Follow-up endoscopy was performed in 11 out of 12 patients. Results: 13 full-thickness resections were performed in 7 males and 5 females (mean age 64.3 +/- 6.3 years). Mean size of the lesions removed with FTRD was 17 +/- 4 mm. Location was rectum (n = 6), cecum (n = 2), ascending colon (n = 2), left flexure (n = 1) and right flexure (n = 2). Mean procedure time was 68 +/- 35 minutes and mean hospital stay was 2.5 +/- 1.2 days. 2 patients developed post-polypectomy syndrome, which resolved after conservative treatment. No perforations and no immediate surgical revision were needed. Histology of the 13 lesions removed with FTRD showed 5 adenomas with low grade intraepithelial neoplasia (IEN), 4 high grade IEN, 1 fibrosis, 1 fibrosis without dysplasia and 2 adenocarcinomas. Technical success was achieved in all procedures (13/13, 100 %). R0 resection was achieved in 10/12 patients (83.3 %). 2 patients underwent surgery because of recurrence or not evaluable margins. In 1 patient no residual malignancy was proven in histological examination, in the other patient residual low grade IEN adenoma. Conclusion: FTRD is a minimally invasive approach with good success rate of complete resection and minimal side effects. PMID- 29344570 TI - Use of anticoagulant or antiplatelet agents is not related to epistaxis in patients undergoing transnasal endoscopy. AB - Background and study aims : Unsedated transnasal endoscopy (uTNE) has become accepted as a safe and tolerable method for upper gastrointestinal tact examinations. Epistaxis is 1 of the major complications of TNE, though its risk factors have not been elucidated. Generally, patients administered an anticoagulant or antiplatelet drug are considered to have an increased risk of epistaxis during TNE. Here, we investigated risk factors of epistaxis in patients undergoing uTNE, with focus on those who received antithrombotic agents. Patients and methods : We enrolled 6860 patients (average age 55.6 +/- 12.97 years; 3405 males, 3455 females) who underwent uTNE and received the same preparations for the procedure. Epistaxis was evaluated using endoscopic images obtained while withdrawing the scope through the nostril. We also noted current use of medications including anticoagulant or antiplatelet agents prior to the endoscopic examination. Results : Epistaxis occurred in 3.6 % of the enrolled patients (245/6860), and that rate was significantly higher in younger patients (average age 49.31 +/- 11.8 years for epistaxis group vs. 55.83 +/- 13.0 years for no epistaxis group, P < 0.01) as well as females (4.78 % vs. 2.35 %, P < 0.01). The odds ratio for occurrence of epistaxis was 2.31 (95 %CI: 1.746 - 3.167) in the younger patients and 2.02 (95 % CI: 1.542 - 2.659) in females. In contrast, there was no significant difference for rate of epistaxis between patients with and without treatment with an antithrombotic agent (3.0 % vs. 3.6 %). Conclusions : The rate of epistaxis was higher in younger and female patients. Importantly, that rate was not significantly increased in patients who were administered an antithrombotic agent. PMID- 29344571 TI - Underwater endoscopic mucosal resection: a new endoscopic method for resection of rectal neuroendocrine tumor grade 1 (carcinoid) <= 10 mm in diameter. AB - Background and study aims Rectal neuroendocrine tumors grade 1 (NET G1; carcinoid) <= 10 mm in diameter often extend into the submucosa, making their complete histological resection difficult using endoscopic techniques. Endoscopic submucosal resection with a ligation device (ESMR-L) and endoscopic submucosal dissection (ESD) are commonly used to overcome these difficulties. We also previously reported that underwater endoscopic mucosal resection (UEMR) could facilitate resection of rectal NET G1. This study aimed to evaluate the safety and efficacy of UEMR for removing rectal NET G1 <= 10 mm in diameter. 6 consecutive patients with rectal NET G1 <= 10 mm in diameter underwent UEMR at our hospital. The rate of en bloc resection was 100 %, and the rate of R0 resection was 83 %. The median procedure time was 8 min (range 5 - 12 min). No perforations or delayed bleeding occurred in this study. In conclusion, UEMR allows the safe and reliable resection of rectal NET G1 <= 10 mm in diameter with comparable results to ESMR-L or ESD, including high en bloc and R0 resection rates with no increase in significant adverse events. A multicenter trial is required to confirm the validity of the present results. PMID- 29344572 TI - Expert-led didactic versus self-directed audiovisual training of confocal laser endomicroscopy in evaluation of mucosal barrier defects. AB - Background and study aims: Confocal laser endomicroscopy (CLE) allows mucosal barrier defects along the intestinal epithelium to be visualized in vivo during endoscopy. Training in CLE interpretation can be achieved didactically or through self-directed learning. This study aimed to compare the effectiveness of expert led didactic with self-directed audiovisual teaching for training inexperienced analysts on how to recognize mucosal barrier defects on endoscope-based CLE (eCLE). Materials and methods: This randomized controlled study involved trainee analysts who were taught how to recognize mucosal barrier defects on eCLE either didactically or through an audiovisual clip. After being trained, they evaluated 6 sets of 30 images. Image evaluation required the trainees to determine whether specific features of barrier dysfunction were present or not. Trainees in the didactic group engaged in peer discussion and received feedback after each set while this did not happen in the self-directed group. Accuracy, sensitivity, and specificity of both groups were compared. Results : Trainees in the didactic group achieved a higher overall accuracy (87.5 % vs 85.0 %, P = 0.002) and sensitivity (84.5 % vs 80.4 %, P = 0.002) compared to trainees in the self directed group. Interobserver agreement was higher in the didactic group (k = 0.686, 95 % CI 0.680 - 0.691, P < 0.001) than in the self-directed group (k = 0.566, 95 % CI 0.559 - 0.573, P < 0.001). Confidence (OR 6.48, 95 % CI 5.35 - 7.84, P < 0.001) and good image quality (OR 2.58, 95 % CI 2.17 - 2.82, P < 0.001) were positive predictors of accuracy. Conclusion: Expert-led didactic training is more effective than self-directed audiovisual training for teaching inexperienced analysts how to recognize mucosal barrier defects on eCLE. PMID- 29344573 TI - Development of an external-to-internal convertible endoscopic biliary drainage device - a preliminary prospective feasibility study. AB - Background and study aims: Endoscopic nasobiliary drainage (ENBD) for a malignant stricture in the bile duct has some advantages over endoscopic biliary stenting (EBS). However, ENBD may cause nasopharyngeal discomfort. We developed an external-to-internal convertible endoscopic biliary drainage (ETI-EBD) device that enables both internal and external drainage to occur during a single endoscopy. Patients and methods : This device consists of three parts, comprising a 5-Fr ENBD tube (250 cm) (ENBD-t), an 8.5-Fr EBS tube (7 cm) (EBS-t), and an 8 Fr pusher tube for EBS (230 cm) (P-t). The EBS-t is mounted over the ENBD-t at the distal end of the ENBD-t. The P-t is also placed over the ENBD-t. After an endoscopic sphincterotomy, the EBS-t of the device is inserted into the papilla, then the duodenal endoscope is withdrawn, leaving the device in place. After ENBD, only the ENBD-t was withdrawn from the P-t. At this point, the EBS-t was isolated and left without endoscopy or radiography. Results : ETI-EBD was successfully placed in all consecutive 21 patients (100 %). The release of EBS-t from ENBD-t wit was successfully completed in 19 patients (90.5 %). There were 4 patients with kink of P-t when exchanging this device from the mouth to the nose. It was difficult for 2 patients to withdraw the ENBD-t because of poor lubrication performance. There were no significant complications associated with the use of the device. Conclusion : This device allows for both external and internal biliary drainage with a single endoscopy. PMID- 29344574 TI - Observation of spin-orbit magnetoresistance in metallic thin films on magnetic insulators. AB - A magnetoresistance (MR) effect induced by the Rashba spin-orbit interaction was predicted, but not yet observed, in bilayers consisting of normal metal and ferromagnetic insulator. We present an experimental observation of this new type of spin-orbit MR (SOMR) effect in the Cu[Pt]/Y3Fe5O12 (YIG) bilayer structure, where the Cu/YIG interface is decorated with nanosize Pt islands. This new MR is apparently not caused by the bulk spin-orbit interaction because of the negligible spin-orbit interaction in Cu and the discontinuity of the Pt islands. This SOMR disappears when the Pt islands are absent or located away from the Cu/YIG interface; therefore, we can unambiguously ascribe it to the Rashba spin orbit interaction at the interface enhanced by the Pt decoration. The numerical Boltzmann simulations are consistent with the experimental SOMR results in the angular dependence of magnetic field and the Cu thickness dependence. Our finding demonstrates the realization of the spin manipulation by interface engineering. PMID- 29344575 TI - Mammary Myofibroblastoma in a Transgender Patient on Feminizing Hormones: Literature Review and Case Report. AB - Purpose: Defining the risk of neoplasia associated with gender-affirming hormone therapy (GAHT) is a priority for transgender medical research. The purposes of this article are to present a unique case of breast neoplasia in a transgender individual and to review the existing evidence base on GAHT as a potential risk for breast pathology. Methods: We present the case of a 76-year-old transgender patient who developed an estrogen receptor-positive mammary myofibroblastoma (MFB) after 13 months of treatment on feminizing hormones. To our knowledge, this is the first reported case of MFB occurring in a transgender individual. A literature review was conducted to identify all reported cases of breast neoplasia among transgender individuals receiving feminizing GAHT. Information was abstracted from each of the included cases to describe the existing body of literature and to compare published cases to the case reported in this study. Results: We identified a total of 19 malignant and 3 benign cases of breast neoplasia among transgender women. Ours is the first reported case of MFB in a transgender individual receiving feminizing hormones and the first reported case of breast neoplasia associated with GAHT administered via the estradiol patch. Conclusion: This case reinforces the need for additional reporting of breast neoplasia presenting in transgender individuals treated with feminizing hormones. The relationship between estrogen exposure and breast neoplasia in the transgender population remains poorly defined, and additional research is needed to define risks and inform clinical practice. PMID- 29344576 TI - Clinical Exposure to Transgender Medicine Improves Students' Preparedness Above Levels Seen with Didactic Teaching Alone: A Key Addition to the Boston University Model for Teaching Transgender Healthcare. AB - Purpose: Transgender individuals are medically underserved in the United States and face many documented disparities in care due to providers' lack of education, training, and comfort. We have previously demonstrated that specific transgender medicine content in a medical school curriculum increases students' willingness to treat transgender patients. However, we have also identified that those same students are less comfortable with transgender care relative to care for lesbian, gay, and bisexual patients. We aimed to demonstrate that clinical exposure to care for transgender patients would help close this gap. Methods: At Boston University School of Medicine, we piloted a transgender medicine elective where students rotate on services that provide clinical care for transgender individuals. Pre- and postsurveys were administered to students who participated in the elective. Results: After completing the elective, students who reported "high" comfort increased from 45% (9/20) to 80% (16/20) (p=0.04), and students who reported "high" knowledge regarding management of transgender patients increased from 0% (0/20) to 85% (17/20) (p<0.001). Conclusion: Although integrating evidence-based, transgender-specific content into medical curricula improves student knowledge and comfort with transgender medical care, gaps remain. Clinical exposure to transgender medicine during clinical years can contribute to closing that gap and improving access to care for transgender individuals. PMID- 29344577 TI - A Practical Approach to Using Trend Arrows on the Dexcom G5 CGM System for the Management of Adults With Diabetes. AB - After reviewing previously published methods, we developed a practical approach to adjusting insulin doses based on insulin sensitivity for adult patients with diabetes using rtCGM trend arrow data. PMID- 29344578 TI - A Practical Approach to Using Trend Arrows on the Dexcom G5 CGM System to Manage Children and Adolescents With Diabetes. AB - After assessing previously published methods, we developed a practical approach to adjusting insulin doses using rtCGM trend arrows in pediatric patients with diabetes. PMID- 29344579 TI - Prognostic significance of cytogenetic heterogeneity in patients with newly diagnosed multiple myeloma. AB - We investigated subclonal cytogenetic aberrations (CA) detected by interphase fluorescence in situ hybridization (iFISH) in patients with newly diagnosed multiple myeloma (MM) enrolled in the Haemato Oncology Foundation for Adults in the Netherlands (HOVON)-65/German-Speaking MM Group (GMMG)-HD4 phase 3 trial. Patients were either treated with 3 cycles of vincristine, Adriamycin, and dexamethasone or bortezomib, Adriamycin, and dexamethasone and then thalidomide or bortezomib maintenance after tandem autologous transplantation. Subclones were defined either by presence of different copy numbers of the same chromosome loci and/or CA present in at least 30% less and maximally 2/3 of cells compared with the main clone CA. Patients with subclones harbored more frequently high risk (31.0%) or hyperdiploid main clone aberrations (24.8%) than patients with t(11;14) in the main clone (10.1%). Gains and deletions of c-MYC were the only CA that occurred more frequently as subclone (8.1%/20.5%) than main clone (6.2%/3.9%, respectively). Treatment with bortezomib completely overcame the negative prognosis of high-risk CA in patients without subclones, but not in patients with additional subclonal CA. High-risk patients treated without bortezomib showed dismal outcome whether subclones were present or not. Cytogenetic heterogeneity defined by subclonal CA is of major prognostic significance in newly diagnosed MM patients treated with bortezomib within the HOVON-65/GMMG-HD4 trial. PMID- 29344580 TI - Successful treatment with fingolimod of graft-versus-host disease of the central nervous system. AB - Fingolimod could be efficient to treat GVHD of the central nervous system.Further research should explore the use of fingolimod and other sphingosine-1-phosphate receptor agonists to prevent or treat GVHD. PMID- 29344581 TI - Glycophorin-C sialylation regulates Lu/BCAM adhesive capacity during erythrocyte aging. AB - Lutheran/basal cell adhesion molecule (Lu/BCAM) is a transmembrane adhesion molecule expressed by erythrocytes and endothelial cells that can interact with the extracellular matrix protein laminin-alpha5. In sickle cell disease, Lu/BCAM is thought to contribute to adhesion of sickle erythrocytes to the vascular wall, especially during vaso-occlusive crises. On healthy erythrocytes however, its function is unclear. Here we report that Lu/BCAM is activated during erythrocyte aging. We show that Lu/BCAM-mediated binding to laminin-alpha5 is restricted by interacting, in cis, with glycophorin-C-derived sialic acid residues. Following loss of sialic acid during erythrocyte aging, Lu/BCAM is released from glycophorin-C and allowed to interact with sialic acid residues on laminin alpha5. Decreased glycophorin-C sialylation, as observed in individuals lacking exon 3 of glycophorin-C, the so-called Gerbich phenotype, was found to correlate with increased Lu/BCAM-dependent binding to laminin-alpha5. In addition, we identified the sialic acid-binding site within the third immunoglobulin-like domain within Lu/BCAM that accounts for the interaction with glycophorin-C and laminin-alpha5. Last, we present evidence that neuraminidase-expressing pathogens, such as Streptococcus pneumoniae, can similarly induce Lu/BCAM mediated binding to laminin-alpha5, by cleaving terminal sialic acid residues from the erythrocyte membrane. These results shed new light on the mechanisms contributing to increased adhesiveness of erythrocytes at the end of their lifespan, possibly facilitating their clearance. Furthermore, this work may contribute to understanding the pathology induced by neuraminidase-positive bacteria, because they are especially harmful to patients suffering from sickle cell disease and are associated with the occurrence of vaso-occlusive crises. PMID- 29344582 TI - Factor XIII in plasma, but not in platelets, mediates red blood cell retention in clots and venous thrombus size in mice. AB - The transglutaminase factor XIII (FXIII) stabilizes clots against mechanical and biochemical disruption and is essential for hemostasis. In vitro and in vivo models of venous thrombosis demonstrate that FXIII mediates clot size by promoting red blood cell (RBC) retention. However, the key source of FXIII and whether FXIII activity can be reduced to suppress thrombosis without imposing deleterious hemostatic consequences are 2 critical unresolved questions. FXIII is present in multiple compartments, including plasma (FXIIIplasma) as a heterotetramer of A2 and B2 subunits and platelets (FXIIIplt) as an A2 homodimer. We determined the role of the FXIII compartment and level in clot contraction, composition, and size in vitro and using in vivo models of hemostasis and venous thrombosis. Reducing overall FXIII levels decreased whole blood clot weight but did not alter thrombin generation or contraction of platelet-rich plasma clots. In reconstituted platelet-rich plasma and whole blood clot contraction assays, FXIIIplasma, but not FXIIIplt, produced high-molecular-weight fibrin crosslinks, promoted RBC retention, and increased clot weights. Genetically imposed reduction of FXIII delayed FXIII activation and fibrin crosslinking, suggesting FXIII levels mediate the kinetics of FXIII activation and activity and that the timing of these processes is a critical determinant of RBC retention during clot formation and contraction. A 50% reduction in FXIIIplasma produced significantly smaller venous thrombi but did not increase bleeding in tail transection or saphenous vein puncture models in vivo. Collectively, these findings suggest that partial FXIII reduction may be a therapeutic strategy for reducing venous thrombosis. PMID- 29344584 TI - Early and late outcomes after cord blood transplantation for pediatric patients with inherited leukodystrophies. AB - Leukodystrophies (LD) are devastating inherited disorders leading to rapid neurological deterioration and premature death. Hematopoietic stem cell transplantation (HSCT) can halt disease progression for selected LD. Cord blood is a common donor source for transplantation of these patients because it is rapidly available and can be used without full HLA matching. However, precise recommendations allowing care providers to identify patients who benefit from HSCT are lacking. In this study, we define risk factors and describe the early and late outcomes of 169 patients with globoid cell leukodystrophy, X-linked adrenoleukodystrophy, and metachromatic leukodystrophy undergoing cord blood transplantation (CBT) at an European Society for Blood and Marrow Transplantation center or at Duke University Medical Center from 1996 to 2013. Factors associated with higher overall survival (OS) included presymptomatic status (77% vs 49%; P = .006), well-matched (<=1 HLA mismatch) CB units (71% vs 54%; P = .009), and performance status (PS) of >80 vs <60 or 60 to 80 (69% vs 32% and 55%, respectively; P = .003). For patients with PS<=60 (n = 20) or 60 to 80 (n = 24) pre-CBT, only 4 (9%) showed improvement. Of the survivors with PS >80 pre-CBT, 50% remained stable, 20% declined to 60 to 80, and 30% to <60. Overall, an encouraging OS was found for LD patients after CBT, especially for those who are presymptomatic before CBT and received adequately dosed grafts. Early identification and fast referral to a specialized center may lead to earlier treatment and, subsequently, to improved outcomes. PMID- 29344583 TI - Heterozygous RTEL1 variants in bone marrow failure and myeloid neoplasms. AB - Biallelic germline mutations in RTEL1 (regulator of telomere elongation helicase 1) result in pathologic telomere erosion and cause dyskeratosis congenita. However, the role of RTEL1 mutations in other bone marrow failure (BMF) syndromes and myeloid neoplasms, and the contribution of monoallelic RTEL1 mutations to disease development are not well defined. We screened 516 patients for germline mutations in telomere-associated genes by next-generation sequencing in 2 independent cohorts; one constituting unselected patients with idiopathic BMF, unexplained cytopenia, or myeloid neoplasms (n = 457) and a second cohort comprising selected patients on the basis of the suspicion of constitutional/familial BMF (n = 59). Twenty-three RTEL1 variants were identified in 27 unrelated patients from both cohorts: 7 variants were likely pathogenic, 13 were of uncertain significance, and 3 were likely benign. Likely pathogenic RTEL1 variants were identified in 9 unrelated patients (7 heterozygous and 2 biallelic). Most patients were suspected to have constitutional BMF, which included aplastic anemia (AA), unexplained cytopenia, hypoplastic myelodysplastic syndrome, and macrocytosis with hypocellular bone marrow. In the other 18 patients, RTEL1 variants were likely benign or of uncertain significance. Telomeres were short in 21 patients (78%), and 3' telomeric overhangs were significantly eroded in 4. In summary, heterozygous RTEL1 variants were associated with marrow failure, and telomere length measurement alone may not identify patients with telomere dysfunction carrying RTEL1 variants. Pathogenicity assessment of heterozygous RTEL1 variants relied on a combination of clinical, computational, and functional data required to avoid misinterpretation of common variants. PMID- 29344585 TI - Hereditary folate malabsorption due to a mutation in the external gate of the proton-coupled folate transporter SLC46A1. AB - Hereditary folate malabsorption (HFM) is an autosomal recessive disorder characterized by impaired intestinal folate absorption and impaired folate transport across the choroid plexus due to loss of function of the proton-coupled folate transporter (PCFT-SLC46A1). We report a novel mutation, causing HFM, affecting a residue located in the 11th transmembrane helix within the external gate. The mutant N411K-PCFT was stable, trafficked to the cell membrane, and had sufficient residual activity to characterize the transport defect and the structural requirements at this site for gate function. The influx Vmax of the N411K mutant was markedly decreased, as was the affinity for most, but not all, folate/antifolate substrates. The greatest loss of activity was for 5 methyltetrahydrofolate. Substitutions with positive charged residues resulted in a loss of activity (arginine > lysine > histidine). Function was retained for the negative charged aspartate, but not the larger glutamate substitutions, whereas the bulky hydrophobic (leucine), or polar (glutamine) substitutions, were tolerated. Homology models of PCFT, in the inward and outward open conformations, based upon the mammalian Glut5 fructose transporter structures, localize Asn411 protruding into the aqueous pathway. This is most prominent when the carrier is in the inward open conformation when the external gate is closed. Mutations at this site likely result in highly specific steric and electrostatic interactions between the Asn411-substituted, and other, residues in the gate region that impede carrier function. The substrate specificity of the N411K mutant may be due to alterations of substrate flows through the external gate, downstream allosteric alterations in the folate-binding pocket, or both. PMID- 29344586 TI - Systemic multilineage engraftment in mice after in utero transplantation with human hematopoietic stem cells. AB - IUHCT of human cord blood-derived CD34+ cells into fetal NSG mice results in systemic multilineage engraftment with human cells.Preconditioning with in utero injection of an anti-c-Kit receptor antibody (ACK2) results in an improved rate of engraftment. PMID- 29344587 TI - An exploratory study of red raspberry (Rubus idaeus L.) (poly)phenols/metabolites in human biological samples. AB - Red raspberry (Rubus idaeus L.) contains a variety of polyphenols including anthocyanins and ellagitannins. Red raspberry polyphenols absorbed in different forms (parent compounds, degradants or microbial metabolites) are subject to xenobiotic metabolism in the intestine, liver, and/or kidney, forming methylate, glucuronide, and sulfate conjugated metabolites. Upon acute exposure, (poly)phenol/metabolite presence in the blood depends mainly on intestinal absorption, enterohepatic circulation, and metabolism by resident microbiota. However, chronic exposure to red raspberry polyphenols may alter metabolite patterns depending on adaptions in the xenobiotic machinery and/or microbiota composition. Understanding the metabolic fate of these compounds and their composition in different biological specimens relative to the exposure time/dose will aid in designing future health benefit studies, including the mechanism of action studies. The present exploratory study applied ultra-high performance liquid chromatography (UHPLC) coupled with quadrupole time-of-flight (QTOF) and triple quadrupole (QQQ) mass spectrometries to characterize red raspberry polyphenols in fruit and then their appearance, including metabolites in human biological samples (plasma, urine and breast milk) after the chronic intake of red raspberries. The results suggested that the most abundant polyphenols in red raspberries included cyanidin 3-O-sophoroside, cyanidin 3-O-glucoside, sanguiin H6 and lambertianin C. Sixty-two (poly)phenolic compounds were tentatively identified in the plasma, urine and breast milk samples after the intake of red raspberries. In general, urine contained the highest content of phenolic metabolites; phase II metabolites, particularly sulfated conjugates, were mainly present in urine and breast milk, and breast milk contained fewer parent anthocyanins compared to urine and plasma. PMID- 29344588 TI - A helical chain-like organic-inorganic hybrid arsenotungstate with color-tunable photoluminescence. AB - A 1-D infinite helical chain-like organic-inorganic hybrid arsenotungstate Na4H8[{Pr(H2O)2}2{As2W19O68}{WO2(mal)}2].24H2O (mal = malate) (1) was prepared, which was characterized by elemental analyses, thermogravimetric (TG) analyses, IR spectroscopy, powder X-ray diffraction (PXRD) and X-ray single-crystal diffraction. Structural characterization revealed that 1 comprises the organo functionalized [{As2W19O68}{WO2(mal)}2]18- polyanions hinged together by the Pr3+ ions forming a 1-D infinite helical chain-like architecture. The malate ligand may play a vital role to stabilize the structure of 1 by the formation of the five-membered W-O-C-C-O chelate ring. Solid state photoluminescence reveals that 1 features excitation wavelength-dependent emission properties, achieving a reversible emission color switching simply via changing the excitation wavelength. Time-resolved emission spectroscopy (TRES) indicates that the photoexcitation O -> M ligand to metal charge transfer (LMCT) of arsenotungstate fragments can sensitize the Pr3+ ions through intramolecular energy transitions in 1. PMID- 29344589 TI - Magnetism-tuning strategies for graphene oxide based on magnetic oligoacene oxide patches model. AB - Graphene oxide (GO) has wide application potential owing to its 2D structure and diverse modification sites for various targeted uses. The introduction of magnetism into GO structures has further advanced the controllability of the application of GO materials. Herein, the concept of modular design and modeling was applied to tune the magnetism of GO. To obtain desirable magnetic properties, diradical-structured GO patches were formed by the introduction of two functional groups to break the Kekule structure of the benzene ring. In these diradical GO patches, the energy of the triplet state was lower than those of the open-shell broken-symmetry singlet state and closed-shell singlet state. To create such multi-radical patches, a practical approach is to determine a substantial spatial separation of the alpha and beta spin densities in the molecule. Thus, systematic design strategies and tests were evaluated. The first strategy was extending the distance between the distribution center of the alpha and beta spin densities; the second was controlling the delocalization directions of the alpha and beta electrons; the third was controlling the delocalization extension of the alpha and beta electrons by oxidative modification, and finally introducing multi radical structures into the molecular system and controlling the position of each radical. Herein, successful molecular models with a large magnetic coupling constant (~3600 cm-1) were obtained. This study paves the way to explore ferromagnetic MGO guided by theoretical study, which may become reality soon. PMID- 29344590 TI - Magnetic anisotropy investigation on light lanthanide complexes. AB - Herein, a series of light lanthanide-based complexes, Ln(fdh)3(bpy) (Ln = CeIII, PrIII, and NdIII and fdh = 1,1,1-fluoro-5,5-dimethyl-hexa-2,4-dione, bpy = 2,2' bipyridine), were synthesized and characterized. The angle-resolved magnetometry studies reveal that the three complexes have Ising-type anisotropy, and the magnetic easy axes orient along the negative charge dense direction in the crystal field. The results were consistent with the ab initio calculations. This research demonstrates that the crystal field electron density distribution determines the anisotropy of light lanthanides. PMID- 29344591 TI - Introduction of axial chirality at a spiro carbon atom in the synthesis of pentaerythritol-imine macrocycles. AB - Novel chiral macrocyclic polyimines with spiro carbon atoms are described. The key feature of the synthesis is the formation of an axially chiral quaternary carbon atom having four constitutionally identical substituents. This is possible either by the freezing of the labile conformation of a spiro-diboronate moiety or by the diastereomeric fitting of a conformationally stable spiro-acetal moiety into a chiral framework. A general model for the description of this type of axial chirality is proposed. PMID- 29344592 TI - pH-Responsible fluorescent carbon nanoparticles for tumor selective theranostics via pH-turn on/off fluorescence and photothermal effect in vivo and in vitro. AB - We developed nanoparticles comprising a photothermal dye (IR825)-loaded carbonized zwitterionic polymer [FNP-I] as "switch-on" pH-responsive fluorescence probes to sense intracellular cancer cells and for near-infrared (NIR) controllable photothermal therapy (PTT) in vivo and in vitro. The fluorescent "off" of FNP-I was activated after reaching the cancer cell environment, where the zwitterionic compartment of FNP lost its hydrophobicity to induce PTT mediated heat release of IR825 under NIR irradiation in the tumor. Approximately 100% of the IR825 was released from the FNP core to generate high thermal conversion to completely kill the cancer cells. Furthermore, after intravenous treatment of FNP-I into MDAMB-231-cell bearing mice, pH-responsive photothermal therapy was observed, achieving marked ablation of tumor cells with release of IR825 under tumor environment conditions. In addition, fluorescent signals were clearly found at the tumor site after 3 h, decreasing at the 6 h time point. The in vitro and in vivo detection system demonstrated good cellular uptake and biocompatibility as a potential imaging-guided photothermal therapy nanotool for cancer treatment. Interestingly, the synergism of the biosensor and PTT in single FNP-I platform led to more effective cancer cell killing than either monotherapy, providing a new approach for cancer treatment. PMID- 29344593 TI - Biologically inspired oxidation catalysis using metallopeptides. AB - The stereoselective oxidation of hydrocarbons is one of the most challenging reactions for synthetic chemists. However, this transformation is one of the most common reactions in nature. Metalloenzymes that catalyze this transformation are taken as inspiration for the development of new catalysts. There are several examples in the literature where either peptides or metal catalysts are used in the stereoselective oxidation reaction, but the synergistic combination of both systems is still a non-explored field. The use of metallopeptides in biologically inspired oxidation reactions is discussed in this perspective. PMID- 29344594 TI - Lithiation of palladated dihydropentacene: a new route for the introduction of substituents from both of electrophiles and nucleophiles to pentacene. AB - Dibromodihydropentacene compound 1 was palladated and then lithiated to give a lithiated-palladated intermediate. Both of the lithium moiety and the palladium complex moiety on dihydropentacene unexpectedly survived in the solution. The Li and Pd moieties reacted with electrophiles and nucleophiles respectively to give the substituted dihydropentacene products. Aromatization of these dihydropentacenes gave substituted pentacene derivatives. PMID- 29344595 TI - Quantitative characterization of the ionic mobility and concentration in Li battery cathodes via low frequency electrochemical strain microscopy. AB - Electrochemical strain microscopy (ESM) can provide useful information on the ionic processes in materials at the local scale. This is especially important for ever growing applications of Li-batteries whose performance is limited by the intrinsic and extrinsic degradation. However, the ESM method used so far has been only qualitative due to multiple contributions to the apparent ESM signal. In this work, we provide a viable approach for the local probing of ionic concentration and diffusion coefficients based on the frequency dependence of the ESM signal. A theoretical basis considering the dynamic behavior of ion migration and relaxation and change of ion concentration profiles under the action of the electric field of the ESM tip is developed. We argue that several parasitic contributions to the ESM signal discussed in the literature can be thus eliminated. The analysis of ESM images using the proposed approach allows a quantitative mapping of the ionic diffusion coefficients and concentration in ionic conductors. The results are validated on Li-battery cathodes (LiMn2O4) extracted from commercial Li-batteries and can provide novel possibilities for their development and further insight into the mechanisms of their degradation. PMID- 29344596 TI - Superstructure Ta2O5 mesocrystals derived from (NH4)2Ta2O3F6 mesocrystals with efficient photocatalytic activity. AB - Superstructured mesocrystalline Ta2O5 nanosheets were successfully prepared from mesocrystalline (NH4)2Ta2O3F6 nanorods by the annealing method for the first time. The as-prepared mesocrystalline Ta2O5 nanosheets in this work showed remarkable visible light absorption, mainly due to the formation of oxygen vacancy defects in the mesocrystalline Ta2O5 nanosheets, which was also confirmed by XPS spectra, Raman spectra and EPR spectra. Besides, the mesocrystalline Ta2O5 nanosheets showed a highly enhanced photocatalytic activity of 11 268.24 MUmol g 1 h-1, about 3.95 times that of commercial Ta2O5. Moreover, the specific surface area of the mesocrystalline Ta2O5-800 nanosheets was 16.34 m2 g-1, about 5.32 times that of the commercial Ta2O5 (3.072 m2 g-1). The valence band XPS spectra indicated a strong oxidizing ability of the mesocrystalline Ta2O5 nanosheets in comparison to that of commercial Ta2O5. The formation of superstructured Ta2O5 mesocrystals generated long lifetime carriers and effective conduction pathways, which greatly enhanced the photocatalytic activity for hydrogen production. PMID- 29344597 TI - Rapid localized crystallization of lysozyme by laser trapping. AB - Confining protein crystallization to a millimetre size was achieved within 0.5 h after stopping 1 h intense trapping laser irradiation, which shows excellent performance in spatial and temporal controllability compared to spontaneous nucleation. A continuous-wave near-infrared laser beam is tightly focused into a glass/solution interfacial layer of a supersaturated buffer solution of hen egg white lysozyme (HEWL). The crystallization is not observed during laser trapping, but initiated by stopping the laser irradiation. The generated crystals are localized densely in a circular area with a diameter of a few millimetres around the focal spot and show specific directions of the optical axes of the HEWL crystals. To interpret this unique crystallization, we propose a mechanism that nucleation and the subsequent growth take place in a highly concentrated domain consisting of HEWL liquid-like clusters after turning off laser trapping. PMID- 29344598 TI - Hot kinetic model as a guide to improve organic photovoltaic materials. AB - The modeling of organic solar cells (OSCs) can provide a roadmap for their further improvement. Many OSC models have been proposed in recent years; however, the impact of the key intermediates from photons to electricity-hot charge transfer (CT) states-on the OSC efficiency is highly ambiguous. In this study, we suggest an analytical kinetic model for OSC that considers a two-step charge generation via hot CT states. This hot kinetic model allowed us to evaluate the impact of different material parameters on the OSC performance: the driving force for charge separation, optical bandgap, charge mobility, geminate recombination rate, thermalization rate, average electron-hole separation distance in the CT state, dielectric permittivity, reorganization energy and charge delocalization. In contrast to a widespread trend of lowering the material bandgap, the model predicts that this approach is only efficient along with improvement of the other material properties. The most promising ways to increase the OSC performance are decreasing the reorganization energy, i.e., an energy change accompanying CT from the donor molecule to the acceptor, increasing the dielectric permittivity and charge delocalization. The model suggests that there are no fundamental limitations that can prevent achieving the OSC efficiency above 20%. PMID- 29344599 TI - Water thermophoresis in carbon nanotubes: the interplay between thermophoretic and friction forces. AB - Thermophoresis is the phenomenon wherein particles experience a net drift induced by a thermal gradient. In this work, molecular dynamics simulations are conducted to study with atomistic detail the thermophoresis of water nanodroplets inside carbon nanotubes (CNTs) and its interplay with the retarding liquid-solid friction. Different applied temperatures, thermal gradients, and droplet sizes are used to reveal the dynamics of the two kinetic regimes of the thermophoretic motion in CNTs. The results indicate that during the droplet motion, the thermophoretic force is independent of the velocity of the droplet, whereas the magnitude of the retarding friction force exhibits a linear dependence. In fact, in the initial regime the magnitude of the friction force increases linearly with the droplet velocity, until the thermophoretic force is balanced by the friction force as the droplet reaches its terminal velocity in the final regime. In addition, an increase in the magnitude of the thermophoretic force is found for longer water droplets. These findings provide a deeper understanding of liquid transport driven by temperature gradients in nanoconfined geometries where liquid solid interfaces govern fluidics. PMID- 29344604 TI - Advancing Clinical Improvements for Patients Using the Theory-Driven and Data Driven Branches of Computational Psychiatry. PMID- 29344605 TI - Errors in Tables, Author Affiliation, and Online-Only Supplement. PMID- 29344606 TI - Errors in Figure and Table 3. PMID- 29344607 TI - Bosentan for Cutaneous Ulcers in Anti-MDA5 Dermatomyositis. PMID- 29344608 TI - Nonhealing Crusted Scalp Lesions in a 4-Year-Old Boy. PMID- 29344609 TI - Generalized Lichen Nitidus Following Anti-PD-1 Antibody Treatment. PMID- 29344611 TI - Variable Response to Naltrexone in Patients With Hailey-Hailey Disease. PMID- 29344610 TI - Association of Combined Patterns of Tobacco and Cannabis Use in Adolescence With Psychotic Experiences. AB - Importance: There is concern about potentially causal effects of tobacco use on psychosis, but epidemiological studies have been less robust in attempts to minimize effects of confounding than studies of cannabis use have been. Objectives: To examine the association of patterns of cigarette and cannabis use with preceding and subsequent psychotic experiences, and to compare effects of confounding across these patterns. Design, Setting, and Participants: This cohort study used data from the Avon Longitudinal Study of Parents and Children, which initially consisted of 14 062 children. Data were collected periodically from September 6, 1990, with collection ongoing, and analyzed from August 8, 2016, through June 14, 2017. Cigarette and cannabis use data were summarized using longitudinal latent class analysis to identify longitudinal classes of substance use. Associations between classes and psychotic experiences at age 18 years were assessed. Exposures: Depending on the analysis model, exposures were longitudinal classes of substance use or psychotic experiences at age 12 years. Main Outcomes and Measures: Logistic regression was used to examine the associations between substance use longitudinal classes and subsequent onset of psychotic experiences. Results: Longitudinal classes were derived using 5300 participants (56.1% female) who had at least 3 measures of cigarette and cannabis use from ages 14 to 19 years. Prior to adjusting for a range of potential confounders, there was strong evdience that early-onset cigarette-only use (4.3%), early-onset cannabis use (3.2%), and late-onset cannabis use (11.9%) (but not later-onset cigarette-only use [14.8%]) latent classes were associated with increased psychotic experiences compared with nonusers (65.9%) (omnibus P < .001). After adjusting for confounders, the association for early-onset cigarette-only use attenuated substantially (unadjusted odds ratio [OR], 3.03; 95% CI, 1.13-8.14; adjusted OR, 1.78; 95% CI, 0.54-5.88), whereas those for early-onset cannabis use (adjusted OR, 3.70; 95% CI, 1.66-8.25) and late-onset cannabis use (adjusted OR, 2.97; 95% CI, 1.63-5.40) remained consistent. Conclusions and Relevance: In this study, our findings indicate that while individuals who use cannabis or cigarettes during adolescence have an increased risk of subsequent psychotic experiences, epidemiological evidence is substantively more robust for cannabis use than it is for tobacco use. PMID- 29344613 TI - Role of Preoperative Variables in Reducing the Rate of Occult Invasive Disease for Women Considering Active Surveillance for Ductal Carcinoma In Situ-Reply. PMID- 29344612 TI - Association of Disease Severity With Skin Microbiome and Filaggrin Gene Mutations in Adult Atopic Dermatitis. AB - Importance: Skin microbiome correlates with disease severity for lesional and nonlesional skin, indicating a global influence of atopic dermatitis (AD). A relation between skin microbiome and filaggrin gene (FLG) mutations proposes a possible association between skin microbiome and host genetics. Objectives: To assess skin and nasal microbiome diversity and composition in patients with AD and compare with healthy controls, and to investigate the microbiome in relation to disease severity and FLG mutations in patients with AD. Design, Setting, and Participants: An observational case-control study of 45 adult healthy controls and 56 adult patients with AD was carried out from January 2015 to June 2015 in a tertiary referral center, Department of Dermatology, Bispebjerg Hospital, Denmark. Exposures: Bacterial swabs were taken from patients with AD (lesional skin, nonlesional skin, and anterior nares) and from healthy controls (nonlesional skin and anterior nares). Eczema severity was assessed and FLG mutations noted. Bacterial DNA was extracted from swabs, and V3-V4 16S rDNA regions amplified with PCR. Samples were analyzed at Statens Serum Institut September 2015 to September 2016. Bioinformatics analyses of the microbiome were analyzed using R statistical software (version 3.3.1, R Foundation Inc). Main Outcomes and Measures: Skin microbiomes were investigated using next-generation sequencing targeting 16S ribosomal RNA. Results: Microbiome alpha diversity was lower in patients with AD compared with healthy controls in nonlesional skin (effect size, 0.710; 95% CI, 0.27-1.15; P = .002), lesional skin (effect size, 0.728; 95% CI, 0.35-1.33; P = .001), and nose (effect size, 1.111; 95% CI, 0.48 0.94; P < .001). Alpha diversity was inversely correlated with disease severity for lesional (effect size, 0.530; 95% CI, 0.23-1.64; P = .02) and nonlesional skin (effect size, 0.451; 95% CI, 0.04-2.44; P = .04) in patients with AD. Microbiome composition in AD nonlesional skin was linked to FLG mutations. Conclusions and Relevance: An altered microbiome composition in patients with AD in nonlesional skin, lesional skin, as well as nose, suggests a global influence of AD. Microbiome composition in AD nonlesional skin is associated with FLG mutations, proposing a possible association between the skin microbiome and host genetics. PMID- 29344614 TI - Apprehending Otherness Through Wonder: A Facial Plastic Surgeon's Review of the Book and Movie. PMID- 29344615 TI - A 30-Year-Old Man With Recurrent Dyspnea and Palpitations. PMID- 29344616 TI - Ensuring Timely Access to Quality Care for US Veterans. PMID- 29344617 TI - Eliminating Alcohol-Impaired Driving Fatalities: What Can Be Done? PMID- 29344618 TI - The Heart-Brain Team-Towards Optimal Team-Based Coordinated Care. PMID- 29344619 TI - Acoustic Analysis of Voice in Singers: A Systematic Review. AB - Purpose: Singers are vocal athletes having specific demands from their voice and require special consideration during voice evaluation. Presently, there is a lack of standards for acoustic evaluation in them. The aim of the present study was to systematically review the available literature on the acoustic analysis of voice in singers. Method: A systematic review of studies on acoustic analysis of voice in singers (PubMed/MEDLINE, CINAHL, Scopus, ProQuest, Cochrane, Ovid, Science Direct, and Shodhganga) was carried out. Key words based on PIO (population investigation-outcome) were used to develop search strings. Titles and abstracts were screened independently, and appropriate studies were read in full for data extraction. Results: Of the 895 studies, 26 studies met the inclusion criteria. Great variability was noted in the instruments and task used. Different acoustic measures were employed, such as fundamental frequency, perturbation, cepstral, spectral, dysphonia severity index, singing power ratio, and so forth. Conclusion: Overall, a great heterogeneity was noted regarding population, tasks, instruments, and parameters. There is a lack of standardized criteria for the evaluation of singing voice. In order to implement acoustic analysis as a part of comprehensive voice evaluation exclusively for singers, there is a certain need for methodical sound studies. PMID- 29344621 TI - Role of Preoperative Variables in Reducing the Rate of Occult Invasive Disease for Women Considering Active Surveillance for Ductal Carcinoma In Situ. PMID- 29344620 TI - Association of Depression With Mortality in Older Adults Undergoing Transcatheter or Surgical Aortic Valve Replacement. AB - Importance: Depression is increasingly recognized as a risk factor for adverse outcomes in cardiovascular disease. However, little is known about depression in older adults undergoing transcatheter (TAVR) or surgical (SAVR) aortic valve replacement. Objective: To determine the prevalence of depression and its association with all-cause mortality in older adults undergoing TAVR or SAVR. Design, Setting, and Participants: This preplanned analysis of the Frailty Aortic Valve Replacement (FRAILTY-AVR) prospective cohort study included 14 centers in 3 countries from November 15, 2011, through April 7, 2016. Individuals 70 years or older who underwent TAVR or SAVR were enrolled. Depressive symptoms were evaluated using the Geriatric Depression Scale Short Form at baseline and follow up. Main Outcomes and Measures: All-cause mortality at 1 and 12 months after TAVR or SAVR. Logistic regression was used to determine the association of depression with mortality after adjusting for confounders such as frailty and cognitive impairment. Results: Among 1035 older adults (427 men [41.3%] and 608 women [58.7%]) with a mean (SD) age of 81.4 (6.1) years, 326 (31.5%) had a positive result of screening for depression, whereas only 89 (8.6%) had depression documented in their clinical record. After adjusting for clinical and geriatric confounders, baseline depression was found to be associated with mortality at 1 month (odds ratio [OR], 2.20; 95% CI, 1.18-4.10) and at 12 months (OR, 1.532; 95% CI, 1.03-2.24). Persistent depression, defined as baseline depression that was still present 6 months after the procedure, was associated with a 3-fold increase in mortality at 12 months (OR, 2.98; 95% CI, 1.08-8.20). Conclusions and Relevance: One in 3 older adults undergoing TAVR or SAVR had depressive symptoms at baseline and a higher risk of short-term and midterm mortality. Patients with persistent depressive symptoms at follow-up had the highest risk of mortality. PMID- 29344622 TI - Barriers to and Facilitators of Implementing Enhanced Recovery Pathways Using an Implementation Framework: A Systematic Review. PMID- 29344625 TI - Perception of Cantonese Lexical Tones by Pediatric Cochlear Implant Users. AB - Purpose: The purpose of this study is to assess Cantonese word recognition and the discrimination of Cantonese tones with manipulated contours by child and adolescent cochlear implant (CI) users and a group of peers with normal hearing (NH). It was hypothesized that the CI users would perform more poorly than their counterparts with NH in both tasks and that CI users implanted before 2 years of age would perform better than those implanted after 2 years. Method: Forty-one participants were recruited from hospitals, schools, and kindergartens in Hong Kong: Ten CI users implanted at or before 2 years of age ("early" CI group), 13 CI users implanted after 2 years of age ("late" CI group), and 18 individuals with NH. The mean age at implantation of the early CI group was 1.5 years (SD = 0.3), and for the late CI group, it was 4.3 years (SD = 2.1). Participants were a mean of 13.3 years of age (SD = 3.7) at time of testing. Participants completed a Cantonese word recognition test and a discrimination task using Cantonese tones with modified fundamental frequency trajectories. Results: Both CI user groups obtained significantly lower scores than the group with NH on the word recognition test. Mean percent correct scores for the word recognition test were 79% for the early CI group, 69% for the late CI group, and 97% for the group with NH. The group with NH consistently achieved higher scores than the CI user groups when discriminating manipulated Cantonese tones. Increasing the acoustic difference between tones improved discrimination performance for CI users for level tone contrasts only. CI users implanted at or before 2 years of age obtained higher scores than those implanted later. Conclusions: The results of this study add further evidence that children using CIs do not perform as well as peers in perceiving Cantonese tones. Modification of tones to increase pitch range did not consistently improve the ability of children with implants to perceive the difference between tones. Further research is required to fully assess potential benefits of early implantation for speakers of tonal languages. Supplemental Materials: https://doi.org/10.23641/asha.5782209. PMID- 29344627 TI - Error in Author Affiliations. PMID- 29344626 TI - Is Depression an Important New Mortality Risk Factor After Aortic Valve Replacement or Simply a Component of the Geriatric Disease Spectrum? PMID- 29344628 TI - Errors in Abstract, Text, and Figure 1 and Addition of Open Access. PMID- 29344631 TI - A Brief Exposure-Based Treatment vs Cognitive Processing Therapy for Posttraumatic Stress Disorder: A Randomized Noninferiority Clinical Trial. AB - Importance: Written exposure therapy (WET), a 5-session intervention, has been shown to efficaciously treat posttraumatic stress disorder (PTSD). However, this treatment has not yet been directly compared with a first-line PTSD treatment such as cognitive processing therapy (CPT). Objective: To determine if WET is noninferior to CPT in patients with PTSD. Design, Setting, and Participants: In this randomized clinical trial conducted at a Veterans Affairs medical facility between February 28, 2013, and November 6, 2016, 126 veteran and nonveteran adults were randomized to either WET or CPT. Inclusion criteria were a primary diagnosis of PTSD and stable medication therapy. Exclusion criteria included current psychotherapy for PTSD, high risk of suicide, diagnosis of psychosis, and unstable bipolar illness. Analysis was performed on an intent-to-treat basis. Interventions: Participants assigned to CPT (n = 63) received 12 sessions and participants assigned to WET (n = 63) received 5 sessions. The CPT protocol that includes written accounts was delivered individually in 60-minute weekly sessions. The first WET session requires 60 minutes while the remaining 4 sessions require 40 minutes. Main Outcomes and Measures: The primary outcome was the total score on the Clinician-Administered PTSD Scale for DSM-5; noninferiority was defined by a score of 10 points. Blinded evaluations were conducted at baseline and 6, 12, 24, and 36 weeks after the first treatment session. Treatment dropout was also examined. Results: For the 126 participants (66 men and 60 women; mean [SD] age, 43.9 [14.6] years), improvements in PTSD symptoms in the WET condition were noninferior to improvements in the CPT condition at each of the assessment periods. The largest difference between treatments was observed at the 24-week assessment (mean difference, 4.31 points; 95% CI, -1.37 to 9.99). There were significantly fewer dropouts in the WET vs CPT condition (4 [6.4%] vs 25 [39.7%]; chi21 = 12.84, Cramer V = 0.40). Conclusions and Relevance: Although WET involves fewer sessions, it was noninferior to CPT in reducing symptoms of PTSD. The findings suggest that WET is an efficacious and efficient PTSD treatment that may reduce attrition and transcend previously observed barriers to PTSD treatment for both patients and providers. Trial Registration: clinicaltrials.gov Identifier: NCT01800773. PMID- 29344632 TI - Factors Associated With Outcomes and Costs After Pediatric Laparoscopic Cholecystectomy. AB - Importance: The prevalence of pediatric cholelithiasis is increasing with the epidemic of childhood obesity. With this rise, the outcomes and costs of pediatric laparoscopic cholecystectomy become an important public health and economic concern. Objective: To assess patient and health system factors associated with the outcomes and costs after laparoscopic cholecystectomy among Canadian children. Design, Setting, and Participants: This was a retrospective, population-based study of children 17 years and younger undergoing laparoscopic cholecystectomy from April 1, 2008, until March 31, 2015. The data source was the Canadian Institute for Health Information. The Canadian Institute for Health Information Discharge Abstract Database includes data from all Canadian hospitals. The analysis was limited to inpatient cholecystectomies. All Canadian children undergoing laparoscopic cholecystectomy were included. Exposure: The exposure in this study was laparoscopic cholecystectomy. Main Outcomes and Measures: The primary outcome was all-cause morbidity, a composite outcome of any complication that prolonged length of stay by 24 hours or required a second, unplanned procedure. The cost of the index admission was also calculated as a secondary outcome. These outcomes of interest were determined before data analysis. Odds ratios and 95% CIs were estimated using multilevel logistic regression models. Results: During the study period, 3519 laparoscopic cholecystectomies were performed; of these, 79.1% (n = 2785) were in girls, and 98.0% (n = 3450) were for gallstone disease. The overall morbidity rate was 3.9% (n = 137). After adjustment, patients with comorbidities were more susceptible to morbidity (odds ratio, 2.68; 95% CI, 1.78-3.86; P < .001). Operations for gallstones were less morbid. High-volume general surgeons had lower morbidity rates compared with low-volume pediatric surgeons (odds ratio, 0.32; 95% CI, 0.12 0.69; P = .005) independent of pediatric volumes. The mean (SD) unadjusted cost of a laparoscopic cholecystectomy was $4115 ($7273). Operative indication, complications, comorbidities, emergency admission, and surgeon volume were associated with cost. Conclusions and Relevance: The high-volume nature of adult general surgery translated to lower morbidity and cost after pediatric laparoscopic cholecystectomy, suggesting that adult volume is associated with pediatric outcomes. As the rate of pediatric gallstone disease increases, surgeon volume, rather than specialty training, should be considered when pursuing operative management. PMID- 29344633 TI - Considering the Ability of General Surgeons to Add Value to Pediatric Surgery. PMID- 29344634 TI - Underlying mechanism of the photodynamic activity of hematoporphyrin-induced apoptosis in U87 glioma cells. AB - Photodynamic therapy (PDT) is a relatively novel type of tumor therapy method with low toxicity and limited side-effects. The aim of the present study was to investigate the underlying mechanism and potential microRNAs (miRNAs) involved in the treatment of glioma by PDT with hematoporphyrin, a clinical photosensitizer. The photodynamic activity of hematoporphyrin on the cell viability and apoptosis of gliomas was investigated by MTT, and flow cytometry and fluorescence microscopy, respectively. Alterations in singlet oxygen and mitochondrial membrane potential were detected. The differentially expressed miRNAs and proteins were evaluated by miRNA gene chip and apoptosis-associated protein chip, respectively. The results demonstrated that cell viability significantly decreased with hematoporphyrin concentration. PDT with hematoporphyrin significantly increased cell apoptosis at a later stage, induced the content of reactive oxygen species (ROS) and decreased the mitochondrial membrane potential, indicating that PDT with hematoporphyrin inhibited cell growth via induction of radical oxygen, decreased the mitochondrial membrane potential and induced apoptosis. The upregulated miRNAs, including hsa-miR-7641, hsa-miR-9500, hsa-miR 4459, hsa-miR-21-5p, hsa-miR-663a and hsa-miR-205-5p may be important in PDT induced cell apoptosis in glioma. Transporter 1, ATP binding cassette subfamily B member- and nuclear factor-kappaB-mediated apoptosis signaling pathways were the most significant pathways. Thus, the current study presents PDT as a potential therapeutic approach for the treatment of malignant glioma, and identified miRNAs for the molecular design and development of a third-generation photosensitizer (PS). PMID- 29344635 TI - Eradication of cervical cancer in vivo by an AAV vector that encodes shRNA targeting human papillomavirus type 16 E6/E7. AB - The major causative agent of cervical cancer is human papilloma virus (HPV); the viral proteins E6 and E7 induce carcinogenesis through the inactivation of the host tumor-suppressor gene. Therefore, the stable expression of specific inhibitors of E6 and E7 in cancer cells is expected to provide effective treatment for cervical cancer without affecting normal tissue. In this study, we propose a novel therapeutic approach using an adeno-associated virus (AAV) vector encoding short hairpin RNA (shRNA) against the oncoproteins E6 and E7 (shE6E7) of HPV type 16 (HPV-16), termed AAV-shE6E7. Three different HPV-16-positive cervical cancer cell lines (BOKU, SiHa and SKG-IIIa cells) were tested for gene transfer efficiency using serotypes of AAV vectors. For in vitro analysis, the cells were transduced AAV-shE6E7; alternatively, in vivo studies were performed via the administration of a direct injection of AAV-shE6E7 into cervical cancer cell derived tumors in mice. The high gene transfer efficiency was observed using AAV2 in all three cervical cancer cell lines. Following transduction, we observed apoptosis, G1 phase arrest and cell growth inhibition. Additionally, in the transduced cells, the E6, E7 and p16 expression levels decreased, whereas the expression levels of p53, p21 and pRb levels were enhanced. The growth of subcutaneously transplanted tumors was markedly inhibited by the single administration of AAV2-shE6E7, and the tumors were almost completely eradicated without any adverse effects. These results provided evidence of the utility of AAV2-shE6E7 as a novel treatment approach for cervical cancer. PMID- 29344636 TI - Analysis of the prolonged infusion of DFP-10917, a deoxycytidine analog, as a therapeutic strategy for the treatment of human tumor xenografts in vivo. AB - 2'-C-cyano-2'-deoxy-1-beta-D-arabino-pentofranocyl-cytosine (DFP-10917, CNDAC) is a 2'-deoxycytidine analog with antitumor activity against various tumor cells. However, a clinically available therapeutic regimen for this compound needs to be established and its functional mechanisms in relation to the dosing schedule need to be clarified. In this study, we evaluated the antitumor activity and toxicity of DFP-10917 by varying the dose and administration schedule in human solid tumor and leukemia xenografts in vivo. Compared to a 1-day infusion with a high-dose of DFP-10917 (30 mg/kg/day), a prolonged 14-day infusion with a low-dose (4.5 mg/kg/day) exerted superior tumor growth inhibitory effects without decreasing the body weights of mice in our human tumor xenograft model. In addition, we found that a 14-day infusion of low-dose DFP-10917 markedly prolonged the lifespan of nude mice bearing both acute leukemia and ovarian cancer cell-derived tumors. On the other hand, gemcitabine (GEM) and cytosine arabinoside (Ara-C), which are similar deoxycytidine analogs and are widely used clinically as standard regimens, exerted less potent antitumor effects than DFP-10917 on these tumors. To elucidate the possible functional mechanisms of the prolonged infusion of DFP-10197 compared with that of GEM or Ara-C, the rate of DNA damage in CCRF CEM and HeLa cells treated with DFP-10917, Ara-C and GEM was detected using a comet assay. DFP-10917, at a range of 0.05 to 1 uM, induced a clear tailed-DNA pattern in both the CCRF-CEM and HeLa cells; Ara-C and GEM did not have any effect. It was thus suggested that a low concentration and long-term exposure to DFP-10917 aggressively introduced the fragmentation of DNA molecules, namely the so-called double-strand breaks in tumor cells, leading to potent cytotoxicity. Moreover, treatment with DFP-10917 at a low-dose with a long-term exposure specifically increased the population of cells in the G2/M phase, while GEM reduced this cell population, suggesting a unique function (G2/M arrest) of DFP 10917. On the whole, our findings indicate that the prolonged infusion of low dose DFP-10917 mainly displays a novel functional mechanism as a DNA-damaging drug and may thus prove to be useful in the treatment of cancer patients who are resistant to other cytosine nucleosides, or in patients in which these other nucleosides have been shown to be ineffective. PMID- 29344637 TI - miR-186, a serum microRNA, induces endothelial cell apoptosis by targeting SMAD6 in Kawasaki disease. AB - Kawasaki disease (KD) is an acute, self-limited vasculitis that predominantly affects medium-sized arteries, particularly the coronary arteries. Recent studies have indicated that microRNAs are involved in many diseases, including KD. However, the detailed mechanism remains unclear. The aim of the present study was to explore the role of miR-186 in KD and potentially discover a new target for KD treatment. The results demonstrated that miR-186 was upregulated in serum from patients with KD and KD serum could increase miR-186 transcript levels in endothelial cells (HUVECs). Overexpression of miR-186 mimic induced HUVEC apoptosis through mitogen-activated protein kinase (MAPK) activation by targeting and inhibiting SMAD family member 6 (SMAD6). Furthermore, KD serum induced HUVEC apoptosis through miR-186. In conclusion, the present results suggested that KD serum-associated miR-186 has an essential role in endothelial cell apoptosis by activating the MAPK pathway through targeting the SMAD6 gene. PMID- 29344638 TI - Garcinone C exerts antitumor activity by modulating the expression of ATR/Stat3/4E-BP1 in nasopharyngeal carcinoma cells. AB - Nasopharyngeal carcinoma (NPC) is one of the most common head and neck malignancies and is typically treated with radiotherapy and chemotherapy. Garcinone C, a natural compound isolated from Garcinia oblongifolia Champ., is a xanthone derivative with potential cytotoxic effects on certain cancers. However, there are limited studies regarding its effects on NPC cells, and its mechanism of action in NPC remains unknown. In the present study, we found that garcinone C significantly inhibited cell viability of the human NPC cell lines CNE1, CNE2, HK1 and HONE1. This inhibition was exerted in a time- and dose-dependent manner. Flow cytometry demonstrated that garcinone C arrested the cell cycle at the S phase. Moreover, with 10 uM of high-dose garcinone C treatment, the cells exhibited necrotic morphology changes including cell swelling, rough endoplasmic reticulum degranulation, endoplasmic reticulum dilatation, mitochondrial swelling and vacuolar degeneration. In addition, we found that garcinone C stimulated the expression levels of ATR and 4E-BP1, while efficiently inhibiting the expression levels of cyclin B1, cyclin D1, cyclin E2, cdc2, CDK7 and Stat3. Collectively, the ability of garcinone C to inhibit NPC in growth in vitro suggested that garcinone C may be a novel agent for the management of NPC. PMID- 29344639 TI - Therapeutic potential of a dual mTORC1/2 inhibitor for the prevention of posterior capsule opacification: An in vitro study. AB - Mammalian target of rapamycin (mTOR) serves a central role in regulating cell growth and survival, and has been demonstrated to be involved in the pathological progression of posterior capsule opacification (PCO). In the present study, the potency of PP242, a novel dual inhibitor of mTOR complex 1/2 (mTORC1/2), in the suppression of the growth of human lens epithelial cells (HLECs) was investigated. Using a Cell Counting Kit-8 and a wound healing assay, it was demonstrated that PP242 inhibited the proliferation and migration of HLECs. In addition, western blot analysis indicated that PP242 completely inhibited mTORC1 and mTORC2 downstream signaling activities, whereas rapamycin only partially inhibited mTORC1 activity within LECs. Furthermore, PP242 treatment led to an upregulation of the expression levels of p53 and B cell lymphoma-2 (Bcl-2) associated X and downregulation of Bcl-2. In addition, flow cytometric analysis demonstrated that PP242 induced the cell cycle arrest at the G0/G1 phase, which may have caused apoptosis and induced autophagy within the LECs. The results of the present study suggested that administration of PP242 may potentially offer a novel therapeutic approach for the prevention of PCO. PMID- 29344640 TI - Over-regulation of microRNA-133b inhibits cell proliferation of cisplatin-induced non-small cell lung cancer cells through PI3K/Akt and JAK2/STAT3 signaling pathway by targeting EGFR. AB - The present study determined the anticancer activity and its mechanism of microRNA-133b on cell proliferation of cisplatin-induced non-small cell lung cancer cells. The expression of microRNA-133b cisplatin-induced non-small cell lung cancer (NSCLC) tissue was lower than that of para-carcinoma tissue in patients. Overall survival of higher expression in cisplatin-induced NSCLC patients was higher than that of lower expression in cisplatin-induced NSCLC patients. Over-regulation of microRNA-133b inhibited cell proliferation and LDH activity, induced apoptosis and caspase-3 activity, suppressed the protein expression of EGFR, PI3K, p-Akt, p-JAK2 and p-STAT3, decreased cyclin D1 and increased Bax protein expression in cisplatin-induced A549 cells. EGFR inhibitor (lapatinib) suppressed EGFR protein expression, inhibited cell proliferation and LDH activity, and induced apoptosis and caspase-3 activity in cisplatin-induced A549 cells by over-regulation of microRNA-133b. When EGFR protein expression was suppressed, PI3K, p-Akt, p-JAK2 and p-STAT3, decreased cyclin D1 and increased Bax protein expression in cisplatin-induced A549 cells by over-regulation of microRNA-133b. Altogether, our results indicated that over-regulation of microRNA 133b inhibits cell proliferation of cisplatin-induced NSCLC by PI3K/Akt and JAK2/STAT3 signaling pathway by targeting EGFR. PMID- 29344641 TI - Inhibition of RPTOR overcomes resistance to EGFR inhibition in triple-negative breast cancer cells. AB - Triple-negative breast cancer (TNBC) cells frequently exhibit activated growth factor signaling and resistance to inhibitors for epidermal growth factor receptor (EGFR), despite the overexpression of EGFR protein, and this is associated with a malignant behavior and a poor prognosis. In this study, to elucidate the underlying mechanisms of resistance to EGFR inhibitor and identify inhibitors that exert a synergistic effect with EGFR inhibition, we examined the inhibitory effects of selected protein kinase inhibitors (PKIs) in combination with gefitinib on the viability of a mesenchymal stem-like (MSL) subtype TNBC cell line. MK-2206, an AKT inhibitor, and a group of mammalian target of rapamycin (mTOR) inhibitors were found to exert synergistic lethal effects in combination with gefitinib in MDA-MB-231 cells. The combination of gefitinib/MK 2206 exerted a prominent synergistic lethal effect in an MTT cell viability assay and a growth inhibitory effect in a long-term colony-forming assay in 2 MSL subtype TNBC cell lines (MDA-MB-231 and HS578T) and one basal-like (BL) subtype TNBC cell line (MDA-MB-468). Gefitinib/MK-2206 treatment synergistically decreased the mTOR signaling target substrates along with the downregulation of ribosomal protein S6 (RPS6), a marker of cell proliferation and target substrate of the AKT-mTOR signaling pathway. In addition, gefitinib markedly reduced the viability of MDA-MD-231 and HS578T cells when regulatory-associated protein of mTOR (RPTOR) was suppressed by siRNA-based knockdown (KD). These results thus suggest that RPTOR mediates, at least partially, the resistance to EGFR inhibition in TNBC cells. Therefore, targeting the mTOR complex 1 (mTORC1) pathway may be a potential strategy for the treatment of EGFR-resistant TNBC. PMID- 29344642 TI - Microarray analysis reveals Tmub1 as a cell cycle-associated protein in rat hepatocytes. AB - Transmembrane and ubiquitin-like domain containing protein 1 (Tmub1), formerly known as hepatocyte odd protein shuttling (HOPS) has been recognized as a ubiquitously expressed shuttling protein that moves between the nucleus and cytoplasm in hepatocytes. Tmub1 is involved in liver regeneration and functions as a bridging protein in tumor cell proliferation. To investigate the transcriptional profile and potential biological processes affected by Tmub1 expression in normal rat hepatocytes, microarray and bioinformatics experiments were used to identify 127 mRNAs differentially expressed between Tmub1 overexpression, Tmub1-knockdown and normal BRL-3A cells (fold-change >=2.5). The expression levels of 17 key node genes associated with the cell cycle were confirmed by reverse transcription-quantitative polymerase chain reaction analysis. Flow cytometry, 5-Ethynyl-20-deoxyuridine, Cell Counting Kit-8 and western blotting experiments revealed the effects on the cell cycle and the inhibition of proliferation in BRL-3A cells overexpressing Tmub1. Further co immunoprecipitation assays demonstrated that Tmub1 interacts with cyclin A2 during the cell cycle and that the overexpression of Tmub1 may postpone cyclin A2 and cyclin B1 degradation in the M phase. The results of the present study indicated that Tmub1 functions as a cell proliferation inhibitor and cell cycle associated protein. PMID- 29344643 TI - MicroRNA-23a-5p regulates osteogenic differentiation of human bone marrow-derived mesenchymal stem cells by targeting mitogen-activated protein kinase-13. AB - The molecular mechanisms of osteogenic differentiation of bone marrow-derived mesenchymal stem cells (BMSCs) remain to be fully elucidated. MicroRNAs (miRs) serve vital roles in the process of regulating osteogenic differentiation of BMSCs. The present study aimed to investigate the role of miR-23a-5p in osteogenic differentiation of human (h)BMSCs, and the underlying molecular mechanism. The results of reverse transcription-quantitative polymerase chain reaction demonstrated that miR-23a-5p was significantly downregulated in the process of osteogenic differentiation. Upregulation of miR-23a-5p inhibited osteogenic differentiation of hBMSCs, and down-regulated expression of miR-23a-5p enhanced this process, which was confirmed by alkaline phosphatase (ALP) and Alizarin Red S staining. A dual-luciferase reporter assay confirmed that mitogen activated protein kinase 13 (MAPK13) was a direct target of miR-23a-5p. In addition, knockdown of MAPK13 inhibited osteogenic differentiation of hBMSCs, similar to the effect of upregulation of miR-23a-5p. Finally, the knockdown of MAPK13 also blocked the effect of miR-23a-5p in osteogenic differentiation of hBMSCs, which was also confirmed by ALP and Alizarin Red S staining. These results indicated that by targeting MAPK13, miR-23a-5p serves a vital role in osteogenic differentiation of hBMSCs, which may provide novel clinical treatments for bone injury however, further studies are required. PMID- 29344645 TI - Targeted disruption of adenosine kinase in myeloid monocyte cells increases osteoclastogenesis and bone resorption in mice. AB - Adenosine kinase (ADK) serves an important role in intracellular adenosine clearance via phosphorylating adenosine to AMP. The role of adenosine and its receptors in the maintenance of bone homeostasis is well studied, particularly in osteoclastogenesis and bone resorption; however, the function of ADK in bone metabolism is still unclear. In the present study, utilizing the cre/floxp recombination system, mice with conditional loss of ADK function in myeloid monocyte cells were used to assess the effect of ADK deficiency on bone metabolism. Mice were evaluated by means of gross observation and bone histomorphometric analysis. Ex vivo osteoclast differentiation and bone resorption were also examined using genetic deletion and pharmacologic inhibition of ADK in osteoclasts. Compared with control mice, the results of the present study demonstrate that adult mice lacking ADK in the myeloid monocyte cells had reduced body weight and nasoanal length. The results of bone histomorphometric analysis revealed that bone mass was significantly decreased and osteoclastic parameters were increased in the study mice. Furthermore, in vitro cell culture revealed that inhibition of ADK function promoted osteoclast differentiation and bone resorption. Osteoclast-associated gene expression, including tartrate resistant acid phosphatase, nuclear factor of activated T-cells, cytoplasmic 1, matrix metalloproteinase 9, Cathepsin K and calcitonin receptor, was also significantly increased. These results suggest that mice with ADK deficiency have reduced bone formation due to increased osteoclastogenesis and bone resorption. The present study provides further insight into the mechanism by which ADK serves a key role in bone metabolism. PMID- 29344646 TI - Engineered zinc-finger transcription factors inhibit the replication and transcription of HBV in vitro and in vivo. AB - In the present study, an artificial zinc-finger transcription factor eukaryotic expression vector specifically recognizing and binding to the hepatitis B virus (HBV) enhancer (Enh) was constructed, which inhibited the replication and expression of HBV DNA. The HBV EnhI-specific pcDNA3.1-artificial transcription factor (ATF) vector was successfully constructed, and then transformed or injected into HepG2.2.15 cells and HBV transgenic mice, respectively. The results demonstrated that the HBV EnhI (1,070-1,234 bp)-specific ATF significantly inhibited the replication and transcription of HBV DNA in vivo and in vitro. The HBV EnhI-specific ATF may be a meritorious component of progressive combination therapies for eliminating HBV DNA in infected patients. A radical cure for chronic HBV infection may become feasible by using this bioengineering technology. PMID- 29344644 TI - Inactivation of DNA-PK by knockdown DNA-PKcs or NU7441 impairs non-homologous end joining of radiation-induced double strand break repair. AB - The DNA-dependent protein kinase (DNA-PK) complex plays a pivotal role in non homologous end-joining (NHEJ) repair. We investigated the mechanism of NU7441, a highly selective DNA-PK inhibitor, in NHEJ-competent mouse embryonic fibroblast (MEF) cells and NHEJ-deficient cells and explored the feasibility of its application in radiosensitizing nasopharyngeal carcinoma (NPC) cells. We generated wild-type and DNA-PKcs-/- MEF cells. Clonogenic survival assays, flow cytometry, and immunoblotting were performed to study the effect of NU7441 on survival, cell cycle, and DNA repair. NU7441 profoundly radiosensitized wild-type MEF cells and SUNE-1 cells, but not DNA-PKcs-/- MEF cells. NU7441 significantly suppressed radiation-induced DSB repair post-irradiation through unrepaired and lethal DNA damage, the cell cycle arrest. The effect was associated with the activation of cell cycle checkpoints. The present study revealed a mechanism by which inhibition of DNA-PK sensitizes cells to irradiation suggesting that radiotherapy in combination with DNA-PK inhibitor is a promising paradigm for the management of NPC which merits further investigation. PMID- 29344647 TI - Autophagy regulates the degeneration of the auditory cortex through the AMPK-mTOR ULK1 signaling pathway. AB - Presbycusis is the most common sensory impairment associated with aging; however, the underlying molecular mechanism remains unclear. Autophagy has been demonstrated to serve a key role in diverse diseases; however, no studies have examined its function in central presbycusis. The aim of the present study was to investigate the changes of autophagy in the physiological processes of the auditory cortex and its role in the degeneration of the auditory cortex, as well as the related mechanisms using naturally aging rats and a D-galactose (D-gal) induced mimetic rat model of aging. The present study demonstrated that autophagy increased from 3 months to 15 months in the normal saline (NS) control group, while it decreased in the D-gal group. Compared with the age-matched NS group, the D-gal group demonstrated significantly increased levels of the autophagy related proteins, LC3 and Beclin 1 (BECN1) and the anti-apoptotic proteins B-cell lymphoma (BCL)2 and BCL-extra large (BCL-xL) at 3 months, with no obvious changes in cell apoptosis level and neuron ultrastructural morphology. However, LC3, BECN1, BCL2 and BCL-xL were decreased at 15 months in the D-gal group, with cell apoptosis significantly increased and substantial neuron degeneration. Additionally, 5' AMP-activated protein kinase (AMPK) activity was enhanced, and mechanistic target of rapamycin (mTOR) and ULK1 phosphorylation (Ser 757) activities were inhibited at 3 months compared with those of the NS group, while the opposite was observed at 9 and 15 months. The present results suggested that autophagy increases from young to adult and decreases at old age in the physiological processes of the auditory cortex, and has anti-apoptotic as well as anti-aging functions in the degeneration of the auditory cortex. Additionally, autophagy was regulated through AMPK activation and mTOR suppression, and impairment of autophagy may serve a key role in the degeneration of the auditory cortex, even in the pathogenesis of central presbycusis. PMID- 29344648 TI - Effect of midkine on gemcitabine resistance in biliary tract cancer. AB - Gemcitabine-based chemotherapy is one of the most effective and commonly used chemotherapeutic regimens for biliary tract cancer (BTC). However, development of resistance to this drug limits its efficacy. The present study aimed to explore the effects of midkine (MDK) on the resistance of BTC cells to gemcitabine. Cell viability and proliferation were measured by a Cell Counting Kit-8 assay and 5 ethynyl-2'-deoxyuridine staining, respectively. Western blot analysis was used to detect the expression of E-cadherin and vimentin. The results indicated that BTC cell lines were more resistant to gemcitabine plus MDK compared with gemcitabine alone. In terms of the underlying mechanism, MDK promoted the epithelial to mesenchymal transition (EMT) of BTC cells and the enhancing effect of MDK on gemcitabine resistance was abrogated when the EMT was blocked with small interfering (si)RNA targeting Twist. In addition, MDK promoted the expression of Notch-1, while knockdown of Notch-1 by siRNA blocked the EMT process in the BTC cell lines. Taken together, these results indicated that MDK promoted gemcitabine resistance of BTC through inducing EMT via upregulating Notch-1. It was suggested that inhibition of the EMT is a promising strategy to overcome MDK-induced drug resistance. PMID- 29344649 TI - Effects of intrathecal bupivacaine on the NR2B/CaMKIIalpha/CREB signaling pathway in the rat lumbar spinal cord. AB - Neuraxial anesthesia produces an anesthetic-sparing, sedative effect. The mechanism underlying this effect potentially involves decreased spinal afferent input. However, the neurochemical mechanisms at the spinal level remain unknown. The N-methyl-D-aspartate receptor 2B subunit/calcium-calmodulin-dependent protein kinase II alpha/cAMP response element-binding protein (NR2B/CaMKIIalpha/CREB) signaling pathway serves an important role in regulating the transmittance of peripheral noxious stimulation to supraspinal regions in the process of nociception. The present study investigated the effects of intrathecal bupivacaine on the NR2B/CaMKIIalpha/CREB signaling pathway. Following catheterization, 36 male Sprague-Dawley rats were randomly assigned to a normal saline (NS) or bupivacaine treatment group, in which each rat intrathecally received 20 ul normal saline or 0.5% bupivacaine, respectively. The expression levels of NR2B, CaMKIIalpha/p-CaMKIIalpha, and CREB/phosphorylated (p)-CREB in the lumbar spinal cord were investigated by western blotting, reverse transcription-quantitative polymerase chain reaction and immunohistochemistry (IHC). Following bupivacaine treatment, western blot analysis demonstrated that the protein expression levels of NR2B, p-CaMKIIalpha, and p-CREB in the spinal cord were reduced by approximately 54, 56 and 33%, respectively, compared with NS control rats. Similar alterations in expression were observed by IHC analysis. Additionally, mRNA expression levels of NR2B, CaMKIIalpha, and CREB were also downregulated following the intrathecal administration of bupivacaine. Therefore, the sedative effect of subarachnoid blockade with bupivacaine possibly occurs through de-afferentation, which may reduce cortical arousal by downregulating the spinal NR2B/CaMKIIalpha/CREB pathway in vivo, however further investigation is required in order to verify this. PMID- 29344650 TI - Adrenomedullin serves a role in the humoral pathway of delayed remote ischemic preconditioning via a hypoxia-inducible factor-1alpha-associated mechanism. AB - Remote ischemic preconditioning (RIPC) is a minimally invasive method that provides protection by reducing injury to the heart, kidneys, brain and other tissues or organs. RIPC may improve the outcome in patients undergoing surgery. Although the role of RIPC has been studied, the results remain controversial. It is difficult to confirm whether RIPC has a kidney protective effect and the understanding of the preconditioning signal pathway involved remains unclear. In the present study, the effect of RIPC in urology was evaluated. The protection against renal damage was assessed by investigating the potential mediator, hypoxia-inducible factor-1alpha (HIF-1alpha), and the functional adrenomedullin (ADM) pathway. Male Sprague-Dawley (SD) rats were used in the present study. The animal model of kidney damage induced by ischemia reperfusion (IR) was used to investigate the protective effect of the acute and delayed phase RIPC. Furthermore, the protective effects of RIPC mediated by a HIF-1alpha-ADM pathway were assessed. The indexes of renal function and oxidative damage indicators were measured by Cr, BUN, mALB, beta2-MG, MPO, MDA and SOD assays, and the expression of HIF-1alpha and ADM were detected by western blot analysis, immunohistochemistry and ELISA assays. Tubular score, determined using hematoxylin and eosin staining, was used to evaluate renal tissue damage. Applying RIPC prevented IR-induced renal dysfunction and oxidative damage by decreasing Cr, BUN, mALB, beta2-MG, MPO, MDA levels and increasing SOD activity. Findings showed that delayed RIPC had an improved effect compared with acute treatment. Delayed RIPC also upregulated the expression of HIF-1alpha and ADM, indicating that the protective effect of the delayed RIPC may be associated with a HIF-1alpha-ADM-mediated mechanism. The effect of the delayed RIPC to reduce IR induced renal damage and increase ADM expression was enhanced by HIF-1alpha agonists DMOG and BAY 85-3934, whereas the effect was whittled by HIF-1alpha antagonists YC-1 and 2-MeOE2. Furthermore, receiving ADM also offered protection to the kidney in comparison with the IR+Vehicle group. These findings suggest that RIPC prevents IR-mediated renal damage by HIF-1alpha via an ADM humoral pathway. In the present study, RIPC provided an effective renal protection. ADM could also offer protection regulated by HIF-1alpha in renal tissue. However, the mechanism of ADM as a protective factor in RIPC requires further research. PMID- 29344651 TI - Identification of genes and pathways in the synovia of women with osteoarthritis by bioinformatics analysis. AB - Osteoarthritis (OA) has a high prevalence in female patients and sex may be a key factor affecting the progression of OA. The aim of the present study was to identify genetic signatures in the synovial membranes of female patients with OA and to elucidate the potential associated molecular mechanisms. The gene expression profiles of the GSE55457 and GSE55584 datasets were obtained from the Gene Expression Omnibus database. Data of two synovial membranes from normal female individuals (GSM1337306 and GSM1337310) and two synovial membranes from female patients affected by OA (GSM1337327 and GSM1337330) were obtained from the dataset GSE55457, and those of three synovial membranes from female patients affected by OA (GSM1339628, GSM1339629 and GSM1339632) were obtained from the dataset GSE55584. Differentially expressed genes (DEGs) were identified by using Morpheus software. Protein-protein interaction (PPI) networks of the DEGs were constructed by using Cytoscape software. Subsequently, Gene Ontology (GO) function and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway enrichment analyses of the top module of the PPI network were performed by using ClueGo. A total of 377 DEGs were identified in the synovial membranes of OA patients compared with those of normal individuals, including 164 upregulated and 213 downregulated genes. The top 10 hub genes were ubiquitin (UB)C, ribosomal protein (RP) L23A, mammalian target of rapamycin, heat shock protein 90 alpha family class A member 1, RPS28, RPL37A, RPS24, RPS4X, RPS18 and UBB. The results of the GO analysis indicated that the DEGs included in the top module of the PPI were mainly enriched in the terms 'nuclear-transcribed mRNA catabolic process', 'nonsense mediated decay', and 'cytoplasmic translation and ribosomal small subunit biogenesis'. KEGG pathway analysis indicated that the DEGs included in the top one module were mainly enriched in the 'ribosome' pathway. The present study provides a systematic, molecular-level understanding of the degeneration of the synovial membrane in the progression of OA in female patients. The hub genes and molecules associated with the synovial membrane may be used as biomarkers and therapeutic targets for the treatment of OA in female patients with OA. PMID- 29344652 TI - Chrysophanol inhibits proliferation and induces apoptosis through NF kappaB/cyclin D1 and NF-kappaB/Bcl-2 signaling cascade in breast cancer cell lines. AB - Chrysophanol is an anthraquinone compound, which exhibits anticancer effects on certain types of cancer cells. However, the effects of chrysophanol on human breast cancer remain to be elucidated. The aim of the present study was to clarify the role of chrysophanol on breast cancer cell lines MCF-7 and MDA-MB 231, and to identify the signal transduction pathways regulated by chrysophanol. MTT assay and flow cytometric analysis demonstrated that chrysophanol inhibited cell proliferation, and cell cycle progression in a dose-dependent manner. The expression of cell cycle-associated cyclin D1 and cyclin E were downregulated while p27 expression was upregulated following chrysophanol treatment at the mRNA, and protein levels. The Annexin V/propidium iodide staining assay results revealed that apoptosis levels increased following chrysophanol treatment. Chrysophanol upregulated caspase 3 and poly (ADP-ribose) polymerase cleavage in both cell lines. Furthermore, chrysophanol enhanced the effect of paclitaxel on breast cancer cell apoptosis. In addition, chrysophanol downregulated apoptosis regulator Bcl-2 protein, and transcription factor p65 and IkappaB phosphorylation. Inhbition of nuclear factor (NF)-kappaB by ammonium pyrrolidine dithiocarbamate diminished the effect of chrysophanol on apoptosis and associated proteins. In conclusion, the results of the current study demonstrated that chrysophanol effectively suppresses breast cancer cell proliferation and facilitates chemosentivity through modulation of the NF-kappaB signaling pathway. PMID- 29344653 TI - A novel variant of osteogenesis imperfecta type IV and low serum phosphorus level caused by a Val94Asp mutation in COL1A1. AB - Osteogenesis imperfecta (OI) is a rare congenital disorder characterized by bone fragility and fractures, and associated with bone deformity, short stature, dentin, ligament and blue-gray eye sclera. OI is caused by a heterozygous mutation in collagen alpha-1(I) chain (COL1A1) or collagen alpha-2(I) chain (COL1A2) genes that encode alpha chains of type I collagen. Collagen alpha chain peptide contains an N-propeptide, which has a role in assembly and processing of collagen. Point mutations in the N-propeptide domain appear to trigger OI. In the present study, a novel heterozygous missense mutation, c.281T>A (p.Val94Asp), was identified in the von Willebrand C domain of N-terminal of type I collagen in an individual with type IV OI. The majority of N-terminal mutations are associated with OI/Ehlers-Danlos syndrome (EDS); however, in the present study, the affected individual did not suffer from EDS and the level of serum phosphorus of the patient was low (0.67 mmol/l). A number of clinical phenotypes were observed at the same variation site or in the same region on the polypeptide chain of COL1A, which suggests that additional genetic and environmental factors may influence the severity of OI. The present study may provide insight into the phenotype genotype association in collagen-associated diseases and improve clinical diagnosis of OI. PMID- 29344654 TI - Tunicamycin inhibits colon carcinoma growth and aggressiveness via modulation of the ERK-JNK-mediated AKT/mTOR signaling pathway. AB - Epidemiology and evidence have demonstrated that colon carcinoma is one of the most common gastrointestinal tumors in the clinic. Reports have suggested that Tunicamycin significantly inhibits aggressiveness of colon carcinoma cells by promotion of apoptosis. In the present study, the inhibitory effect of tunicamycin on colon cancer cells and the potential underlying molecular mechanism was investigated. Western blotting, immunohistochemistry, apoptotic assays and immunofluorescence were used to analyze the therapeutic effects of tunicamycin on apoptosis, growth, aggressiveness and cell cycle of colon tumor cells, by downregulation of fibronectin, vimentin and E-cadherin expression levels. In vitro experiments demonstrated that tunicamycin significantly inhibited growth, migration and invasion of colon carcinoma cells. In addition, tunicamycin administration promoted apoptosis of colon carcinoma cells via upregulation of apoptotic protease activating factor 1 and cytochrome c expression levels, which are proteins that have a role in mitochondrial apoptosis signaling. Cell cycle assays revealed that tunicamycin suppressed proliferation and arrested S phase entry of colon carcinoma cells. Mechanistic analysis demonstrated that tunicamycin reduced expression and phosphorylation levels of extracellular signal-regulated kinase (ERK), c-JUN N-terminal kinase (JNK) and protein kinase B (AKT), and inhibited mammalian target of rapamycin (mTOR) expression levels in colon carcinoma cells. Endogenous overexpression of ERK inhibited tunicamycin-mediated downregulation of JNK, AKT and mTOR expression, which further blocked tunicamycin-mediated inhibition of growth and aggressiveness of colon carcinoma. In vivo assays revealed that tunicamycin treatment significantly inhibited tumor growth and promoted apoptosis, which led to long-term survival of tumor-bearing mice compared with the control group. In conclusion, these results suggested that tunicamycin may inhibit growth and aggressiveness of colon cancer via the ERK-JNK-mediated AKT/mTOR signaling pathway, and suggested that tunicamycin may be a potential anti-cancer agent for colon carcinoma therapy. PMID- 29344655 TI - Protective effects of osthole against inflammation induced by lipopolysaccharide in BV2 cells. AB - Inflammation and oxidative stress are implicated in the development of neurodegenerative diseases. Osthole is a compound that is extracted from She Chuang Zi, which is a type of traditional Chinese medicine. Osthole has previously been demonstrated to exhibit anticancer activities and has a low toxicity. However, to the best of our knowledge, the anti-inflammatory effects of osthole in microglial cells have not been investigated extensively. The aim of the present study was to investigate the potential protective effects of osthole against inflammation induced by lipopolysaccharide (LPS) in microglial cells. The present study employed LPS-stimulated BV2 mouse microglia to establish an inflammatory cell model and to investigate the anti-inflammatory effects of osthole. Cells were pretreated with osthole for 1 h prior to LPS (10 ug/ml) stimulation. At 6 h after the addition of LPS, alterations in the levels of inflammatory factors, including tumor necrosis factor (TNF)-alpha, interleukin (IL)-6 and IL-1beta, were determined by ELISA. Furthermore, at 24 h after the addition of LPS, western blot analysis was performed to analyze the alterations in the protein expression of nuclear factor-kappaB (NF-kappaB) p65, phosphorylated-NF-kappaB p65, nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase (HO)-1. The results demonstrated that the secretion of the inflammatory cytokines TNF-alpha, IL-6 and IL-1beta by LPS-stimulated BV2 cells was significantly reduced by osthole treatment. Simultaneously, osthole treatment inhibited the LPS-induced activation of the NF-kappaB signaling pathway. In addition, osthole upregulated the expression of Nrf2 and HO-1 in a dose-dependent manner. Based on these results, osthole may exhibit anti-inflammatory effects via the NF-kappaB and Nrf2 pathways, indicating that osthole has the potential to be developed into an effective anti-inflammatory drug. PMID- 29344656 TI - Liraglutide suppresses proliferation and induces adipogenic differentiation of 3T3-L1 cells via the Hippo-YAP signaling pathway. AB - Liraglutide, as a glucagon-like peptide-1 analogue, is used to treat type 2 diabetes mellitus and obesity. Previous findings have demonstrated the effects of liraglutide on adipogenesis; however, the underlying mechanism involved in this process remains to be elucidated. In the present study, to certify the effect of liraglutide on adipogenesis and explore the possible underlying mechanism involved in this process, preadipocyte 3T3-L1 cells were cultured in adipocyte inducing medium and treated with liraglutide. Subsequently, the expression levels of the master transcription factors and adipocyte-specific genes were measured by reverse transcription-quantitative polymerase chain reaction and immunoblotting analysis. Lipid droplet production was detected by Oil red O staining. Cell proliferation was determined by a Cell Counting Kit-8 assay and cell immunofluorescence for Ki67, and apoptosis was assessed by flow cytometry. Next, the expression levels of the core components in the Hippo-yes-associated protein (YAP) signaling pathway as well as YAP-specific target genes were measured. Finally, short interfering RNAs of mammalian ste20 kinase 1/2 (MST1/2), a key protein kinase in the Hippo-YAP pathway, were used to determine whether liraglutide regulated adipogenic differentiation via the Hippo-YAP pathway. It was demonstrated that liraglutide promoted adipogenic differentiation, suppressed proliferation, did not affect apoptosis of 3T3-L1 cells and activated the Hippo YAP signaling pathway at the initial stage of adipogenesis. Silencing of MST1 counteracted the effect of increasing adipogenesis by liraglutide. These results suggested that liraglutide may activate the Hippo-YAP signaling pathway leading to the inhibition of proliferation of preadipocyte 3T3-L1 cells, and result in cells achieving transformation into mature adipocytes sooner. Taken together, the results of the present study may expand knowledge of the underlying mechanism of liraglutide facilitating adipogenesis, and may contribute to the development of GLP-1 receptor agonists for weight loss and increased insulin sensitivity. PMID- 29344657 TI - Effects of hereditary moderate high fat diet on metabolic performance and physical endurance capacity in C57BL/6 offspring. AB - Obesity in pregnant women presents a risk to fetal health, leading to numerous metabolic syndromes and chronic inflammation risks. Previously, physical exercise was considered to be one of the primary treatments for obesity. However, the effect of fat consumption throughout the life cycle on physical endurance capacity remains unknown. A total of two groups of female mice (age, 6 weeks; C57BL/6J) were fed with a normal chow diet and a moderate high fat diet (MHFD), during pregnancy and lactation (8 weeks), with the offspring receiving the same diet as the mother. When filial mice were 8, 16 and 24 weeks old, they were tested for endurance, blood pressure (BP) and glucose tolerance, as well as adipose tissue infiltration and macrophage subtype. Compared with the control group, filial mice in MHFD groups exhibited increased BP and glucose levels and larger adipose cells (~4-fold). During adolescence, the obese filial mice demonstrated increased endurance compared with controls. Endurance declines in middle and old age; the endurance of aged obese mice was 29% that of lean ones. In addition, body coordination and movement memory did not notably change. The expression of cluster of differentiation 68, one of the most reliable markers of macrophages, increased by 2.48-fold, demonstrating that macrophages were recruited and underwent infiltration. In addition, increased tumor necrosis factor-alpha and decreased interleukin-10 expression demonstrated that infiltrated macrophages are polarized to the M1 state, which weakens physical endurance and resists type M2 macrophages, which exhibit repairing functions. In conclusion, hereditary MHFD weakens physical endurance and alters the metabolic characteristics of C57BL/6 offspring. PMID- 29344658 TI - MicroRNA-188-3p is involved in sevoflurane anesthesia-induced neuroapoptosis by targeting MDM2. AB - Sevoflurane is a commonly used inhalation anesthetic. Sevoflurane-induced neuroapoptosis and cognitive impairments in animals are widely reported, however, the underlying molecular mechanisms remain largely unknown. The results of the present study demonstrated that sevoflurane anesthesia induced spatial memory impairments in rats, as determined by the Morris water maze test. Mechanistically, the current study demonstrated that sevoflurane administration significantly enhanced the expression of microRNA (miR)-188-3p. Furthermore, inhibition of miR-188-3p using lentiviral miR-188-3p inhibitors attenuated sevoflurane-induced cognitive impairments in rats. The present study also demonstrated that miR-188-3p targeted MDM2 proto-oncogene (MDM2) and negatively regulated the expression of MDM2, as determined by luciferase assays, reverse transcription-quantitative polymerase chain reaction and western blot analysis. Furthermore, decreased abundance of MDM2 following transfection with miR-188-3p mimics was associated with increased stability of p53 protein. Suppression of p53 activity using the specific p53 inhibitor pifithrin-alpha alleviated sevoflurane induced neuroapoptosis. These results indicate that the miR-188-3p-MDM2-p53 axis may have a critical role in sevoflurane-induced cognitive dysfunction. Therefore, miR-188-3p may be a potential target for the treatment of sevoflurane-induced cognitive impairment. PMID- 29344659 TI - Degree of endplate chondrocyte degeneration in different tension regions during mechanical stimulation. AB - The aim of this study was to explore the degree of degeneration of endplate chondrocytes in different tension regions induced by intermittent cyclic mechanical tension (ICMT) in vitro. Rat endplate chondrocytes were harvested and treated with 10% ICMT for 8 h/day with a frequency of 0.5 Hz. A cartilage degeneration model was induced using an FX-5000T cell strain-loading system. The experiment was divided into the central region and the peripheral region, according to the contact area between the loading post and the six-well flexible silicone rubber BioFlex plates. Toluidine blue and phalloidin staining were used to observe the morphological changes of cells following mechanical stimulation. Apoptosis was detected by flow cytometry and the mRNA and protein expression levels of collagen type II alpha1, aggrecan, SRY-box 9 and matrix metalloproteinase 13 were detected by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting, respectively. Endplate chondrocytes exhibited degenerative alterations under mechanical conditions of 10% ICMT and 0.5 Hz at 8 h/day. Toluidine blue and phalloidin staining demonstrated that the cells in the peripheral region were more slender compared with cells in the central region, but RT-qPCR and western blotting results demonstrated that the degree of cell degeneration between the two groups was not statistically differences. So that cell morphological alteration does not imply that cells have undergone degeneration. PMID- 29344660 TI - Purple sweet potato color attenuates high fat-induced neuroinflammation in mouse brain by inhibiting MAPK and NF-kappaB activation. AB - Purple sweet potato color (PSPC) is a natural anthocyanin pigment that is derived from purple sweet potato storage roots. PSPC possesses a variety of biological activities, including antioxidant, anti-inflammatory and neuroprotective effects; however, the detailed effects of PSPC on high-fat diet (HFD)-induced neuroinflammation remain to be determined. The aim of the present study was to investigate whether PSPC has a protective role in HFD-associated neuroinflammation in the mouse brain and to provide novel insight into the mechanisms of the action. C57BL 6J mice were maintained on a normal diet (10 kcal% fat), a HFD (60 kcal% fat), a HFD with PSPC (700 mg/kg/day) or PSPC alone, which was administrated over 20 weeks. Open field and step-through tests were used to evaluate the effects of HFD and PSPC on mouse behavior and memory function. Western blotting and ELISA analyses were used to assess the expression of inflammatory cytokines and the activation of mitogen-activated protein kinase and nuclear factor-kappaB (NF-kappaB). The results demonstrated that PSPC treatment was able to significantly improve the HFD-induced impairment of mouse behavior and memory function, and suppressed the increase in body weight, fat content, hyperlipemia and the level of endotoxin. PSPC treatment also markedly decreased the expression of cyclooxygenase-2, inducible nitric oxide synthase, tumor necrosis factor-alpha, interleukin (IL)-1beta and IL-6, and increased the level of IL-10 in the HFD-treated mouse brain. In addition, PSPC inhibited the HFD-induced phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK) and p38, and the activation of NF-kappaB. These findings indicated that PSPC treatment may alleviate HFD-induced neuroinflammation in the mouse brain by inhibiting ERK, JNK, p38 and NF-kappaB activation. PMID- 29344661 TI - Plasma levels of microRNA-21, -126 and -423-5p alter during clinical improvement and are associated with the prognosis of acute heart failure. AB - MicroRNAs are associated with myocardial damage and heart failure (HF). The present study investigated whether the plasma levels of microRNA (miR)-21, -126 and -423-5p alter according to the (de)compensated state of patients with HF and are associated with all-cause mortality. In 48 patients with HF admitted to the emergency room for an episode of acute decompensation, blood samples were collected to measure miR and B-type natriuretic peptide levels within 24 h of hospital admission, at the time of hospital discharge, and a number of weeks post discharge (chronic stable compensated state). Levels of miR-21, miR-126 and miR 423-5p increased between admission and discharge, and decreased following clinical compensation. During follow-up (up to 48 months), 38 patients (79%) were rehospitalized at least once and 21 patients (44%) succumbed. Patients who had increased levels of miR-21 and miR-126 at the time of clinical compensation exhibited better 24-month survival and remained rehospitalization-free for a longer period compared with those with low levels. Additionally, patients whose levels of miR-423-5p increased between admission and clinical compensation experienced fewer hospital readmissions in the 24 months following the time of clinical compensation compared with those who had decreased levels. It was concluded that the plasma levels of miR-21, miR-126 and miR-423-5p altered during clinical improvement and were associated with the prognosis of acute decompensated HF. PMID- 29344662 TI - Dengue virus-1 NS5 genetic variant associated with a severe clinical infection: Possible reduction of the innate immune response by inhibition of interferon type 1 and the Janus kinase-signal transducer and activator of transcription signaling pathway. AB - Dengue virus (DENV) is currently considered as one of the most important mosquito borne viral pathogens affecting humans. Genetic variations in viruses are likely to be a condition for more effective evasion of the immune system and resulting in severe clinical consequences. The DENV-1 NS5 gene was sequenced to establish whether during an epidemic burst there were genetic variations of the virus and whether any variant was associated (through a case-control design) with severe clinical behavior. A total of 31 patients positive for DENV-1 were enrolled. Among the nucleotide differences between the sequences, only two generated amino acid changes. The variants 124Met/166Ser (amino acid positions according to the report GenBank AJL35015.1), were associated with a severe clinical course of the disease. Via in silico tests, it was identified that the variations generate changes in the protein probably affecting the function of type-1 interferon, either at the level of its receptor or by interfering with the Janus kinase signal transducer and activator of transcription signaling pathway. PMID- 29344663 TI - Adeno-associated virus type 2-mediated gene transfer of a short hairpin-RNA targeting human IGFBP-2 suppresses the proliferation and invasion of MDA-MB-468 cells. AB - Adeno-associated virus 2 (AAV2) is prepotent in the biological treatment of breast tumor because of its low pathogenicity and immunogenicity. Our previous study demonstrated that insulin-like growth factor-binding protein 2 (IGFBP-2) was highly expressed in patients with breast metastasis. In the present study, the effects of recombinant AAV2 on the growth and metastasis of breast cancer cells were determined in vitro, and in vivo. rAAV2-ZsGreen-shRNA-scramble and rAAV2-ZsGreen-shRNA-hIGFBP-2 were used to transfect MDA-MB-468, and MCF-10A cells respectively, and observed that these virus could not penetrate the normal human breast epithelia MCF-10A cell line. To investigate the effect of the recombinant virus on chemotherapeutics, paclitaxel was added to MDA-MB-468 cells and it was demonstrated that rAAV2-ZsGreen-shRNA-hIGFBP-2-infected MDA-MB-468 cells were highly chemosensitive to paclitaxel compared with rAAV2-ZsGreen-shRNA-scramble injected cells. In addition, it was demonstrated that the invasive ability of rAAV2-ZsGreen-shRNA-hIGFBP-2-infected MDA-MB-468 cells was highly impaired compared with the rAAV2-ZsGreen-shRNA-scramble group. In the nude mice xenografts, the rAAV2-ZsGreen-shRNA-hIGFBP-2 injection inhibited tumor growth and Ki-67 expression was significantly downregulated compared with the scramble group. Following IGFBP-2 knockdown using rAAV2-ZsGreen-shRNA-hIGFBP-2, matrix metalloproteinase-2 expression was significantly reduced in tumor tissues compared with that in rAAV2-ZsGreen-shRNA-scramble treated tumor tissues. These findings have provided a direction for the application of novel AAV2-based therapeutics for treating aggressive triple-negative breast cancer types. PMID- 29344665 TI - Overexpression of septin-7 inhibits melatonin-induced cell apoptosis in human fetal osteoblastic cells via suppression of endoplasmic reticulum stress. AB - Our previous study demonstrated that melatonin could induce apoptosis in the human fetal osteoblastic (hFOB) 1.19 cell line via induction of endoplasmic reticulum stress (ERS), and recent studies have demonstrated that the expression of septin-7 (SEPT7) exhibits a positive correlation with the concentration of melatonin. Western blotting demonstrated the expression level of SEPT7 was significantly upregulated in a dose-dependent manner following treatment with differing concentrations of melatonin compared with the control groups, which did not receive any treatment. The expression of proteins associated with cell apoptosis and endoplasmic reticulum stress (ERS; pro-caspase-3, cleaved caspase 3, C/EBP-homologous protein, 78 kDa glucose-regulated protein and phosphorylated eukaryotic translation initiation factor 2alpha) were decreased following transfection with SEPT7 overexpression plasmid and increased following transfection with SEPT7 small interfering RNA compared with the control groups. The results of the present study suggest that SEPT7 inhibits melatonin-induced cell apoptosis via suppression of ERS. PMID- 29344664 TI - Crucial role of OX40/OX40L signaling in a murine model of asthma. AB - The aim of the present study was to explore the roles of OX40/OX40 ligand (OX40L) signaling and OX40+ T cells in ovalbumin (OVA)-induced mouse asthma model. Asthma was induced by OVA exposure and subsequent co-treatment with OX40L protein, neutralizing anti-OX40L blocking antibody, OX40+ T cells or PBS. The protein expression levels of interleukin (IL)-4, IL-6, IL-13, IL-17, tumor necrosis factor (TNF)-alpha and interferon (IFN)-gamma in bronchoalveolar lavage fluid (BALF) were examined using murine cytokine-specific ELISA. Eosinophil accumulation as well as proliferation and apoptosis of T cells in BALF were detected by Cell Counting kit-8 and flow cytometric assays. Expression of the apoptosis-related protein cleaved caspase-3 was examined in OX40+ T cells using western blot assay. Flow cytometric analysis revealed that OVA-treated mice that were co-treated with OX40L or OX40+ T cells exhibited higher eosinophil infiltration compared with control mice treated only with OVA, whereas neutralizing anti-OX40L blocking antibody inhibited eosinophil infiltration. ELISA assays demonstrated that the expression of IL-4, IL-6, IL-13, IL-17, TNF alpha and IFN-gamma in BALF in OX40L-treated and OX40+ T cell-treated mice was increased compared with expression levels in control mice. Treatment with OX40L protein effectively reduced apoptosis of T cells and the expression of cleaved caspase-3 in T cells. OX40L-treated and OX40+ T cell-treated mice exhibited increased asthma through OX40/OX40L signaling, which probably promoted inflammatory factor expression, eosinophil infiltration and T cell proliferation. PMID- 29344666 TI - Let-7b regulates alpaca hair growth by downregulating ectodysplasin A. AB - Hypohidrotic ectodermal dysplasia (HED), also known as anhidrotic ectodermal dysplasia, is characterized by the clinical manifestations of less sweat or no sweat, sparse or no hair, tooth agenesis and/or abnormal tooth morphology. The characteristics of alpaca ear hair differ from the back hair. The ectodysplasin A (EDA) signaling pathway has a regulatory effect on skin development and hair growth. The aim of the present study was to study the effects of EDA on alpaca hair growth by examining the mRNA and protein expression levels of EDA in alpaca ear and back skin by reverse transcription-quantitative polymerase chain reaction and western blot analysis, respectively. Results indicated that EDA expression was higher in the ear skin compared with the back skin. The expression levels of let-7b in the skin of healthy alpacas varies; the difference between let-7b expression levels of the ear and back have been reported to be >2-fold, suggesting a role for let-7b in the development of adult alpaca skin and hair follicles. A dual-luciferase reporter vector was constructed to verify the targeting relationship between microRNA let-7b and EDA, and the results revealed that EDA was a target gene of let-7b. Alpaca skin fibroblasts were transfected with a let-7b eukaryotic expression vector to investigate the regulatory relationship between let-7b and EDA. The expression of EDA was decreased in the transfected group; immunocytochemical results demonstrated that the EDA protein was abundantly expressed in the fibroblast cytoplasm. EDA protein expression was weaker in the transfected cells than in the untransfected cells. These results suggested that EDA may serve a role in alpaca hair growth and is probably a target gene of let-7b; let-7b downregulated EDA mRNA and protein expressions, which suggested that let-7b may regulate alpaca hair growth. These conclusions suggested that let-7b may be associated with HED. PMID- 29344667 TI - Clinical evaluation of covered stents in the treatment of superficial femoral artery pseudoaneurysm in drug abusers. AB - The present study aimed to investigate the technical feasibility and initial clinical outcomes of a covered stent for the endovascular treatment of superficial femoral artery (SFA) pseudoaneurysm in drug abusers. A total of 29 drug abuse patients with SFA pseudoaneurysm, as confirmed by color Doppler sonography, were enrolled to the present study between January 2012 and May 2014. All patients were treated percutaneously by implantation of a covered stent. Physical examination and lower extremity computed tomography angiography were performed at 1 and 9 months postoperation. Furthermore, the ankle-brachial index (ABI) of all patients was measured. The results indicated that placement of the covered stent was technically successful in all 29 patients. All of the ruptured pseudoaneurysms were successfully sealed with no cases of intraprocedural mortality. In addition, all patients' conditions improved rapidly; active hemorrhage subsidence and vascular bruit disappearance were immediately detected following implantation of the covered stent. During the follow-up period, pain was markedly alleviated and pulsatile mass was decreased as time increased. No complaints or complications were documented. A total of 9 months postoperation, pain and pulsatile mass were not detected. The patency rate of the stent was 100%, and no migration, occlusion or infection was detected. In addition, the ABI was significantly improved, from 0.52+/-0.09 to 0.97+/-0.37 (P<0.01). In conclusion, the placement of a covered stent may be considered a promising approach to provide an effective, safe and minimally invasive option for the treatment of SFA pseudoaneurysm in drug abusers. PMID- 29344668 TI - Blocking of autocrine IGF-1 reduces viability of human umbilical cord mesenchymal stem cells via inhibition of the Akt/Gsk-3beta signaling pathway. AB - Human umbilical cord mesenchymal stem cells (hUCMSCs) are able to secrete growth factors, such as hepatocyte growth factor, vascular endothelial growth factor and insulin-like growth factor-1 (IGF-1). The secretion of these growth factors by transplanted hUCMSCs have been identified to stimulate the growth of the host cells in the target organs or tissues. The aim of the present study was to investigate the effect of autocrine IGF-1 on cell viability of hUCMSCs. The expression levels of IGF-1 and the IGF-1 receptor (IGF-1R) in hUCMSCs were identified using immunocytochemistry staining. In order to block autocrine IGF-1, hUCMSCs were treated with 5 ug/ml alphaIR-3, a specific IGF-1R antibody, for 24 h. The cells cultured in medium without alphaIR-3 were used as the control group. Cell viability, apoptosis, cell cycle and the proliferation-associated proteins were quantified using an MTT assay, flow cytometry and western blotting. The findings of the present study revealed that IGF-1 and IGF-1R were positively expressed in hUCMSCs. Treatment with alphaIR-3 significantly reduced cell viability and increased apoptosis of hUCMSCs (P<0.01). Cell cycle analysis indicated that the number of cells in the G2/M phase was reduced in the alphaIR-3 treated group compared with the control group. Western blotting revealed that the expression levels of phosphorylated (p)-protein kinase B (Akt), p-glycogen synthase kinase 3beta (GSK-3beta), p-p70 S6 kinase and cyclin D1 were markedly reduced and p21 expression was markedly increased in the alphaIR-3-treated group as compared with the control group (P<0.05). However, no significant difference was identified in the p-extracellular-signal regulated kinase 1/2 expression when the alphaIR-3 treatment group was compared with the control group. (P>0.05). The findings of the present study suggested that the autocrine IGF-1 from hUCMSCs may be capable of influencing cell viability of hUCMSCs, which may be associated with activation of Akt/GSK-3beta signaling pathway. PMID- 29344669 TI - CLC-2 is a positive modulator of oligodendrocyte precursor cell differentiation and myelination. AB - Oligodendrocytes (OLs) are myelin-forming cells that are present within the central nervous system. Impaired oligodendrocyte precursor cell (OPC) differentiation into mature OLs is a major cause of demyelination diseases. Therefore, identifying the underlying molecular mechanisms of OPC differentiation is crucial to understand the processes of myelination and demyelination. It has been acknowledged that various extrinsic and intrinsic factors are involved in the control of OPC differentiation; however, the function of ion channels, particularly the voltage-gated chloride channel (CLC), in OPC differentiation and myelination are not fully understood. The present study demonstrated that CLC-2 may be a positive modulator of OPC differentiation and myelination. Western blotting results revealed that CLC-2 was expressed in both OPCs and OLs. Furthermore, CLC-2 currents (ICLC-2) were recorded in both types of cells. The inhibition of ICLC-2 by GaTx2, a blocker of CLC-2, was demonstrated to be higher in OPCs compared with OLs, indicating that CLC-2 may serve a role in OL differentiation. The results of western blotting and immunofluorescence staining also demonstrated that the expression levels of myelin basic protein were reduced following GaTx2 treatment, indicating that the differentiation of OPCs into OLs was inhibited following CLC-2 inhibition. In addition, following western blot analysis, it was also demonstrated that the protein expression of the myelin proteins yin yang 1, myelin regulatory factor, Smad-interacting protein 1 and sex determining region Y-box 10 were regulated by CLC-2 inhibition. Taken together, the results of the present study indicate that CLC-2 may be a positive regulator of OPC differentiation and able to contribute to myelin formation and repair in myelin-associated diseases by controlling the number and open state of CLC-2 channels. PMID- 29344670 TI - PGC-1alpha ameliorates kidney fibrosis in mice with diabetic kidney disease through an antioxidative mechanism. AB - The production of reactive oxygen species (ROS) is a common phenomenon in podocyte impairment, which leads to the irreversible progression of chronic kidney diseases, such as diabetic kidney disease (DKD). Previous research has indicated that peroxisome proliferator-activated receptor gamma (PPARgamma) coactivator-1alpha (PGC-1alpha) participates in mitochondrial biogenesis and energy metabolism in certain mitochondria-enriched cells, including myocardial and skeletal muscle cells. Therefore, we hypothesized that PGC-1alpha may be a protective nuclear factor against energy and oxidative stress in DKD. To investigate this hypothesis, db/db diabetic mice were used to establish a DKD model and the PPARgamma agonist rosiglitazone was employed to induce PGC-1alpha expression in vivo. Additionally, immortalized mouse podocytes and SV40 MES 13 renal mesangial cells were utilized for in vitro experiments. The expression levels of PGC-1alpha and genes associated with kidney and cell injury were determined by western blotting or reverse transcription-quantitative polymerase chain reaction and intracellular ROS levels were assessed by 2',7' dichlorodihydrofluorescein diacetate. The results of the present study demonstrated that endogenous PGC-1alpha expression exhibited protective effects against oxidative stress, glomerulosclerosis and tubulointerstitial fibrosis in experimental DKD. These results indicated a potential role of PGC-1alpha in the amelioration of key pathophysiological features of DKD and provided evidence for PGC-1alpha as a potential therapeutic target in DKD. PMID- 29344671 TI - Role of miR-34c in the cognitive function of epileptic rats induced by pentylenetetrazol. AB - Studies suggest that microRNA (miR)-34c may serve a role in cognitive function in rodent and primate groups. A previous study demonstrated an increase in miR-34c expression in chronic epileptic rats with memory disorders, induced by pentylenetetrazol (PTZ). However, the mechanism underlying the effects of miR-34c on cognitive function in epileptic rats remains unclear. Therefore, the present study investigated alterations in cognitive function in temporal lobe epileptic rats, induced by repeated injections of PTZ, following treatment with an miR-34c agomir compared with a scramble group. Increased expression of miR-34c was observed in the agomir group, in addition to an increased deficit in learning and memory function in the Morris water maze test. Glutamate receptor ionotropic N methyl-D-aspartate (NMDA) 2B (NR2B), phosphorylated (p)-reduced nicotinamide adenine dinucleotide phosphate-dependent diflavin oxidoreductase 1 (NR1) and p glutamate receptor 1 (GluR1) protein expression was detected in the hippocampus using western blotting. Additionally, the downregulation of NR2B, p-NR1 and p GluR1 in the miR-34c agomir group demonstrated that miR-34c may serve a negative role in cognitive function in epileptic seizures, by dysregulating NMDA and alpha amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors, which are associated with long-term potentiation. PMID- 29344672 TI - Histone deacetylase inhibitor trichostatin A and autophagy inhibitor chloroquine synergistically exert anti-tumor activity in H-ras transformed breast epithelial cells. AB - Histone deacetylase inhibitors (HDACIs) cause oncogene-transformed mammalian cell death. Our previous study indicated that HDACIs activate forkhead box O1 (FOXO1) and induce autophagy in liver and colon cancer cells. However, whether FOXO1 is involved in HDACI-mediated oncogene-transformed mammalian cell death remains unclear. In the present study, H-ras transformed MCF10A cells were used to investigate the role of FOXO1 in this pathway. Results showed that trichostatin A (TSA), a HDACI, activated apoptosis in MCF10A-ras cells, but not in MCF10A cells. Furthermore, TSA activated FOXO1 via P21 upregulation, whereas the knockdown of FOXO1 reduced TSA-induced cell death. In addition, TSA induced autophagy in MCF10A and MCF10A-ras cells by blocking the mammailian target of rapamycin signaling pathway. Furthermore, autophagy inhibition lead to higher MCF10A-ras cell death by TSA, thus indicating that autophagy is essential in cell survival. Taken together, the present study demonstrated that TSA causes oncogene transformed cell apoptosis via activation of FOXO1 and HDACI-mediated autophagy induction, which served as important cell survival mechanisms. Notably, the present findings imply that a combination of HDACIs and autophagy inhibitors produce a synergistic anticancer effect. PMID- 29344673 TI - GOLPH2, a gene downstream of ras signaling, promotes the progression of pancreatic ductal adenocarcinoma. AB - Various studies have previously demonstrated that Golgi protein-73 (GOLPH2) is overexpressed in tumorigenesis, which has been observed in hepatocellular carcinoma and prostate cancer. However, the expression levels and specific functions of GOLPH2 in the progression of pancreatic cancer remain to be elucidated. The present study aimed to investigate the expression of GOLPH2 in pancreatic ductal adenocarcinoma (PDAC) tissues and examined the effects of GOLPH2 on the growth and migration of pancreatic cancer cells. In the present study, the mRNA levels of GOLPH2 in PDAC cancer tissues were examined using RT qPCR. The effects of GOLPH2 on the growth and migration of cancer cells were examined using crystal violet and Boyden chamber assays. The study demonstrated that the expression of GOLPH2 mRNA and protein was elevated in PDAC clinical tissues. The growth and motility of the PDAC cells was enhanced following overexpression of GOLPH2, whereas downregulating the expression of GOLPH2 impaired the growth, motility and tumorigenesis. Furthermore, GOLPH2 was observed to interact with protein kinase B (Akt), which subsequently increased the activity of Akt. In addition, GOLPH2 was revealed as a downstream gene of Ras signaling and promoted the transformation of normal pancreatic cells. The results of the present study revealed the important functions of GOLPH2 in PDAC, and suggest that GOLPH2 may act as a promising therapeutic target for the treatment of PDAC in the future. PMID- 29344674 TI - Long non-coding RNA H1 promotes cell proliferation and invasion by acting as a ceRNA of miR-138 and releasing EZH2 in oral squamous cell carcinoma. AB - Long non-coding RNAs (lncRNAs) have been shown to play pivotal roles in various types of human cancer, including oral squamous cell carcinoma (OSCC). However, the potential mechanisms of action of lncRNAs in OSCC remain to be fully elucidated. The aim of the present study was to further explore the potential mechanisms of action of lncRNAs in OSCC. We first analyzed Gene Expression Omnibus (GEO) datasets to investigate aberrantly expressed lncRNAs which may be involved in the development of OSCC. Reverse transcription-quantitative PCR (RT qPCR) was performed to analyze the expression levels of lncRNA H19. In addition, the correlation between H19 expression and the clinical characteristics and prognosis of patients with OSCC was statistically analyzed. The effects of H19 expression on OSCC cells were examined by using overexpression and RNA interference approaches in vitro and in vivo. To examine the competitive endogenous RNA (ceRNA) mechanisms, bioinformatics analysis and luciferase reporter assay were performed. In addition, the correlation between H19 and microRNA (miR)-138 was detected. H19 was found to be upregulated in OSCC tissues and its high expression level was associated with the TNM stage and nodal invasion, and also correlated with a shorter overall survival of patients with OSCC. The knockdown of H19 significantly inhibited OSCC cell proliferation, migration, invasion and epithelial-mesenchymal transition (EMT), and induced apoptosis in vitro; it also suppressed subcutaneous tumor growth in vivo. In addition, H19 was found to regulate the expression of oncogene enhancer of zeste homolog 2 (EZH2) by competing with miR-138; the inhibition of miR-138 attenuated the inhibitory effects of H19 knockdown on OSCC cells. On the whole, our findings suggest that H19 functions as an oncogene by inhibiting miR-138 and facilitating EZH2 expression in OSCC. Thus, lncRNA H1 may represent a potential therapeutic target for OSCC. PMID- 29344675 TI - Expression and prognostic significance of TRPV6 in the development and progression of pancreatic cancer. AB - In this study, we aimed to clarify the expression and biological functions of TRPV6 in human pancreatic cancer (PC) tissue and pancreatic cancer (PC) cell lines. TRPV6 was up-regulated in the primary cancer tissues from pancreatic cancer (PC) patients. TRPV6 may regulate multiple proteins related to apoptosis, cell cycle and metastasis pathways. Silencing TRPV6 significantly inhibited invasion, proliferation and migration and induced apoptosis and cell cycle arrest. TRPV6 plays a promising role of an oncogene in pancreatic carcinogenesis and represents the new potential biomarker for PC. PMID- 29344677 TI - Is vitamin D deficiency a public health concern for low middle income countries? A systematic literature review. AB - PURPOSE: Vitamin D deficiency has been receiving increasing attention as a potential public health concern in low and lower-middle income countries (LMICs), of which there are currently 83. We aimed to conduct a comprehensive systematic literature review (SLR) of available data on vitamin D status and prevalence of vitamin D deficiency in all 83 LMICs. METHODS: We followed the general methodology for SLRs in the area of serum 25-hydroxyvitamin D. Highest priority was placed on identifying relevant population-based studies, followed by cross sectional studies, and to a lesser extent case-control studies. We adopted the public health convention that a prevalence of vitamin D deficiency (serum 25 hydroxyvitamin D < 25/30 nmol/L) at > 20% in the entire population and/or at-risk population subgroups (infants, children, women of child-bearing age, pregnancy) constitutes a public health issue that may warrant intervention. RESULTS: Our SLR revealed that of the 83 LMICs, 65% (n = 54 countries) had no published studies with vitamin D data suitable for inclusion. Using data from the remaining third, a number of LMICs had evidence of excess burden of vitamin D deficiency in one or more population subgroup(s) using the above convention (Afghanistan, Pakistan, India, Tunisia and Mongolia) as well as possibly other LMICs, albeit with much more limited data. Several LMICs had no evidence of excess burden. CONCLUSION: Vitamin D deficiency is a public health issue in some, but certainly not all, LMICs. There is a clear need for targeting public health strategies for prevention of vitamin D deficiency in those LMICs with excess burden. PMID- 29344676 TI - Application of Genome Editing Techniques in Immunology. AB - The idea of using the effector immune cells to specifically fight cancer has recently evolved into an exciting concept of adoptive cell therapies. Indeed, genetically engineered T cells expressing on their surface recombinant, cancer targeted receptors have been shown to induce promising response in oncological patients. However, in addition to exogenous expression of such receptors, there is also a need for disruption of certain genes in the immune cells to achieve more potent disease-targeted actions, to produce universal chimeric antigen receptor-based therapies or to study the signaling pathways in detail. In this review, we present novel genetic engineering methods, mainly TALEN and CRISPR/Cas9 systems, that can be used for such purposes. These unique techniques may contribute to creating more successful immune therapies against cancer or prospectively other diseases as well. PMID- 29344678 TI - Conservative antibiotic treatment for acute uncomplicated appendicitis is feasible. AB - PURPOSE: Appendectomy versus conservative antibiotic treatment (CAT) for children with acute uncomplicated appendicitis (AUA) remains unresolved, with concerns regarding the practicality of CAT. We analyzed our center's experience with CAT for AUA, using a protocol with strict inclusion, exclusion and treatment criteria. METHODS: Non-randomized, prospective cohort study included all children admitted betwee 2014 and 2016, with clinical and laboratory tests suspicious for AUA. Data collected included clinical signs and symptoms; laboratory, ultrasound and pathology results. Follow-up was conducted through clinic visits, telephone conversations and national registry analysis. RESULTS: Included in CAT: 362 children, 19 underwent appendectomy within 1-2 days. Overall, 75 were readmitted for recurrent acute appendicitis during 22 months (6-43) follow-up. Thirty were treated successfully with antibiotics a second time. The remaining 45 had appendectomy. Overall, 86.8% underwent CAT with no surgery. Histology of all recurrent AUA revealed no perforations. CONCLUSION: We confirm the feasibility of conservative management of AUA in children. A rigorous diagnostic plan with strict inclusion and exclusion criteria will lead to high success rate of CAT with a strong safety profile. CAT does not compete with surgery or render appendectomy unnecessary. It is a safe alternative to surgery in selected cases. PMID- 29344679 TI - Distribution and dynamic expression of serotonin and dopamine in the nervous system and ovary of Holothuria scabra during ovarian maturation. AB - In the present study, the distribution and dynamic expression of serotonin and dopamine in the nervous system and ovary of the sea cucumber, Holothuria scabra, during different ovarian stages were investigated. We found that serotonin immunoreactivity was more intense in the neurons and neuropils of the outer ectoneural part, the inner hyponeural part, and the wall of hyponeural canal of radial nerve cord during the mature stages of ovarian cycle, whereas dopamine immunoreactivity was detected at a higher intensity in these tissues during the early stages. Both neurotransmitters were detected in the ectoneural part of the nerve ring. In the ovary, serotonin intensity was more intense in the cytoplasm of late oocytes, while dopamine-immunoreactivity was more intense in the early stages. The changes in the levels serotonin in the radial nerve cord and oocytes are incremental towards the late stages of ovarian maturation. In contrast, dopamine levels in the nervous tissues and oocytes were more intense in early stages and became decremental towards the late stages. These findings suggest that serotonin and dopamine may have opposing effects on ovarian development in this sea cucumber species. PMID- 29344680 TI - Acute and long-term outcome of focal atrial tachycardia ablation in the real world: results of the german ablation registry. AB - INTRODUCTION: Catheter ablation of focal atrial tachycardia (FAT) can be a challenging procedure and results have been rarely described. The purpose of this study was to determine the characteristics and results of FAT ablation in the large cohort of the German Ablation Registry. METHODS: The German Ablation Registry is a nationwide prospective multicenter database including 12566 patients who underwent an ablation procedure between 2007 and 2010. Among them 431 (3.4%) underwent an FAT ablation and 413 patients with documented locations were analyzed. Patients were divided into three groups according to the FAT location: biatrial (BiA, n = 31, 7.5%), left atrial (LA, n = 110, 26.5%), and right atrial (RA, n = 272, 66%). RESULTS: Acute success rate was 84% (68 vs. 85 vs. 85% in biA, LA, and RA, respectively, p = 0.038). 4.8% of patients had an early recurrence during hospitalization, most in biatrial location (p < 0.001). No major acute complication occurred. At 12 months, 81% were asymptomatic or improved. The incidence of major adverse cardiovascular and cerebrovascular events (MACCE) was 3.7%. Arrhythmia freedom without antiarrhythmic drugs was 58% and was lower in biA (34 vs. 56% in LA vs. 62% in RA, p = 0.019). Early recurrence during hospitalization was an outstanding predictive factor for recurrence during follow-up. CONCLUSION: In this large patient population, FAT ablation had a relatively high acute success rate with a low complication rate. During follow-up, the recurrence rate was high, particularly in biatrial location. This was frequently predicted by an early recurrence during hospitalization. PMID- 29344681 TI - Timing of blood transfusion and oncologic outcomes in patients treated with radical nephroureterectomy for upper tract urothelial carcinoma. AB - PURPOSE: To evaluate the impact of timing of blood transfusion in patients with upper tract urothelial carcinoma (UTUC) treated with radical nephroureterectomy (RNU). METHODS: Outcomes of consecutive patients with UTUC treated with RNU were analyzed. Clinicopathologic factors were compared using Fisher's exact test or the Wilcoxon rank-sum test between patients who received any transfusion and no transfusion, and between patients receiving intraoperative transfusion only and patients receiving no transfusion. Cancer-specific and overall survival were estimated and multivariable analyses were performed to assess the impact of timing of transfusion on clinical outcomes. RESULTS: Among 402 patients included in this study, 71 (17.6%) patients received a transfusion at any point and 27 (6.7%) patients received an intraoperative blood transfusion. Transfusion at any time, patient comorbidity, high grade, advanced stage, positive surgical margins, low preoperative hemoglobin, longer operative duration, and increased blood loss were significantly associated with cancer-specific survival (DSS) on univariable analysis (HR 1.85, 95% CI 1.20-2.85, p < 0.005). In the multivariable analysis, transfusion at any point was not a prognostic factor (HR 1.00, 95% CI 0.60-1.68, p = 0.99). When examining intraoperatively transfusion only, transfusion was significantly associated with DSS (HR 1.91, 95% CI 1.01-3.59, p = 0.045) but no longer significant in multivariable analysis (HR 0.72, 95% CI 0.32-1.65, p = 0.440). CONCLUSIONS: Our study indicates that the administration of blood transfusion either intraoperatively or postoperatively is not associated with clinical or oncological outcomes in patients with upper tract urothelial carcinoma when adjusted for other factors in multivariable analysis. Further study is required. PMID- 29344682 TI - 68Ga-prostate specific membrane antigen (PSMA) positron emission tomography (PET) for primary staging of high-risk prostate cancer: a systematic review. AB - PURPOSE: To systematically review currently available data on 68Ga-prostate specific membrane antigen (PSMA) positron emission tomography (PET) used for the primary staging of high-risk prostate cancer. METHODS: We performed critical reviews of EMBASE, Web of Science (including MEDLINE) and Cochrane databases in October 2016 according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. We included studies that utilized 68Ga-PSMA PET for primary staging of prostate cancer. Quality was assessed using the Critical Appraisal Skills Programme checklist for diagnostic test studies. RESULTS: Following our systematic search strategy, 12 studies were included for assessment. These studies comprised a total of 322 patients who underwent 68Ga PSMA PET scanning for the purpose of primary staging. Only 5 of these studies included histopathologic correlation data. High variation in methodology and outcomes such as sensitivity (range 33-99%) and specificity (> 90%) was seen across all studies. The ability of 68Ga-PSMA PET to detect malignant lesions was evident across studies, with most studies demonstrating increased detection rates with respect to conventional imaging modalities. CONCLUSIONS: In the primary staging of prostate cancer 68Ga-PSMA PET appears to outperform traditional imaging modalities. Overall, there are few high-quality studies investigating 68Ga-PSMA PET in this sub-group highlighting the need for formal assessment of PSMA PET in the form of large-volume, prospective studies. PMID- 29344684 TI - Novel Injection Technique for Malar Cheek Volume Restoration. PMID- 29344683 TI - The root transcriptome of Achyranthes bidentata and the identification of the genes involved in the replanting benefit. AB - KEY MESSAGE: The transcriptome profiling in replanting roots revealed that expression pattern changes of key genes promoted important metabolism pathways, antioxidant and pathogen defense systems, adjusted phytohormone signaling and inhibited lignin biosynthesis. The yield of the medicinal plant Achyranthes bidentata could be significantly increased when replanted into a field cultivated previously for the same crop, but the biological basis of this so-called "replanting benefit" is unknown. Here, the RNA-seq technique was used to identify candidate genes responsible for the benefit. The analysis of RNA-seq libraries prepared from mRNA extracted from the roots of first year planting (normal growth, NG) and second year replanting (consecutive monoculture, CM) yielded about 40.22 GB sequencing data. After de novo assembly, 87,256 unigenes were generated with an average length of 1060 bp. Among these unigenes, 55,604 were annotated with public databases, and 52,346 encoding sequences and 2881 transcription factors were identified. A contrast between the NG and CM libraries resulted in a set of 3899 differentially transcribed genes (DTGs). The DTGs related to the replanting benefit and their expression profiles were further analyzed by bioinformatics and qRT-PCR approaches. The major differences between the NG and CM transcriptomes included genes encoding products involved in glycolysis/gluconeogenesis, glutathione metabolism and antioxidant defense, in aspects of the plant/pathogen interaction, phytohormone signaling and phenylpropanoid biosynthesis. The indication was that replanting material enjoyed a stronger level of defense systems, a balance regulation of hormone signals and a suppression of lignin formation, thereby promoting root growth and development. The study provides considerable significant insights for a better understanding of the molecular mechanism of the replanting benefit and suggests their possible application in developing methods to reinforce the effects in medicinal plants. PMID- 29344685 TI - Long-Term Safety and Efficacy of Botulinum Toxin A Treatment in Adolescent Patients with Axillary Bromhidrosis. AB - BACKGROUND: For adolescent bromhidrosis, the long-term safety and efficacy of botulinum toxin type A (BTX-A) treatment are not clear to date. PATIENTS AND METHODS: From June 2011 to July 2016, 62 adolescent patients with primary axillary bromhidrosis were recruited and 50 U of BTX-A was administered in each axilla. Repetitive injections were performed when the malodor returned. RESULTS: The average follow-up was 2.64 years. There were no reported local or systemic adverse effects. After the first BTX-A injection, 61.3% of patients (38/62) maintained the duration of more than 4 weeks. Of these patients, 21 patients underwent two sessions, 8 patients underwent three sessions, and 4 patients underwent four sessions. Twenty-four of sixty-two (38.7%) of patients had the duration of < 4 weeks. The second injection with the same dose was immediately administered, and the resulting duration increased to 9 weeks. Nineteen patients received the third injection with 100 U per underarm, and the resulting duration was extended up to 16 weeks. Overall, 82% of patients (51/62) ranked the BTX-A treatment to be very good or good. CONCLUSION: For adolescent axillary bromhidrosis, BTX-A injection is safe and effective over a long-term follow-up. The duration of efficacy is variable, and the dosage should be fine-tuned based on the individual response. LEVEL OF EVIDENCE IV: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . PMID- 29344686 TI - Executive control and faithfulness: only long-term romantic relationships require prefrontal control. AB - Individuals in the early stages of a romantic relationship generally express intense passionate love toward their partners. This observation allows us to hypothesize that the regulation of interest in extra-pair relationships by executive control, which is supported by the function of the prefrontal cortex, is less required in individuals in the early stages of a relationship than it is in those who are in a long-term relationship. To test this hypothesis, we asked male participants in romantic relationships to perform a go/no-go task during functional magnetic resonance imaging (fMRI), which is a well-validated task that can measure right ventrolateral prefrontal cortex (VLPFC) activity implicated in executive control. Subsequently, the participants engaged in a date-rating task in which they rated how much they wanted to date unfamiliar females. We found that individuals with higher right VLPFC activity better regulated their interest in dates with unfamiliar females. Importantly, this relationship was found only in individuals with long-term partners, but not in those with short-term partners, indicating that the active regulation of interest in extra-pair relationships is required only in individuals in a long-term relationship. Our findings extend previous findings on executive control in the maintenance of monogamous relationships by highlighting the role of the VLPFC, which varies according to the stage of the romantic relationship. PMID- 29344687 TI - Risk Factors for Early Postoperative Small Bowel Obstruction After Anterior Resection for Rectal Cancer: Methodological Issues: Reply. PMID- 29344688 TI - Inflammation-Based Prognostic Score Predicts Postoperative Survival of Patients with Interstitial Pneumonia After Undergoing Lung Cancer Resection. AB - OBJECTIVES: Idiopathic interstitial pneumonias (IIPs) are associated with an increased risk of lung cancer. Glasgow prognostic score (GPS), which uses serum C reactive protein (CRP) and albumin levels to indicate systemic inflammatory response and nutrition level, has been reported to be a predictor of overall survival in patients with various types of cancer. We evaluated the usefulness of GPS for prediction of survival of patients with both lung cancer and IIPs following a lung resection procedure. METHODS: Patients with IIPs who underwent lung cancer resection from January 2006 through December 2015 were investigated. Routine laboratory measurements, including serum CRP and albumin for determining GPS, were performed before the operation. Univariate and multivariate analyses with a COX proportional hazards regression model were used to identify independent risk factors for overall survival (OS), relapse-free survival (RFS), cancer-specific survival (CSS), and other disease-specific survival (ODSS). RESULTS: A total of 135 patients underwent lung resection during the study period. Multivariate analysis selected sublobar resection (p = 0.035), UIP pattern (p = 0.025), and GPS of 1-2 (p = 0.042) as predictive factors associated with OS, while GPS of 1-2 (p = 0.039) was shown to be a predictive factor associated with RFS. Multivariate analysis also revealed pTNM (p < 0.001), usual interstitial pneumonia pattern (p = 0.006), and GPS of 2 (p = 0.003) as predictive factors associated with CSS, while univariate analysis indicated pTNM (p = 0.042), GPS of 1 (p = 0.044), and %DLCO (p = 0.038) as predictive factors associated with ODSS. CONCLUSION: GPS is an independent prognostic factor of OS and RFS in lung cancer patients with IIPs undergoing a lung resection procedure. Furthermore, a GPS of 2 was found to be associated with CSS following lung cancer resection, while a score of 1 was associated with ODSS. PMID- 29344689 TI - Early Versus Late Tracheostomy in Trauma Patients: A Propensity-Matched Cohort Study of 5 Years' Data at a Single Institution in Korea. AB - BACKGROUND: Although there have been many studies dealing with tracheostomy timing in trauma patients, the optimal timing is still being debated. This study aimed to compare outcomes between early tracheostomy (ET) and late tracheostomy (LT) in trauma populations to estimate the optimal timing of tracheostomy after intubation. METHODS: We retrospectively reviewed the 5 years' data of trauma patients who underwent tracheostomy during their acute intensive care unit (ICU) stay. The cases were divided into two groups: ET was defined as tracheostomy performed within 7 days after intubation, and LT, after the seventh day. Propensity score matching was utilized using a 1-to-1 matching technique, and outcomes between two groups were compared. RESULTS: Among 236 enrolled patients, 76 met the criteria for ET and 160 were included for LT. Using propensity matching, 70 patients who met the criteria for ET were matched to 70 patients in the LT. Based on the comparison of outcomes after matching, ET showed significantly shorter values than LT in overall ventilator duration, length of stay at the ICU, and post-tracheostomy ventilation duration. Furthermore, the incidence of pneumonia was significantly lower with ET than with LT, although the rate of postoperative complications showed no significant differences. CONCLUSIONS: We suggest that ET should be considered in trauma patients needing prolonged mechanical ventilation. Also, we recommend that surgeons perform tracheostomy as early as within 7 days after intubation to not only reduce the ventilation and ICU days but also prevent pneumonia without worrying about an increase in postoperative complications. PMID- 29344690 TI - [Globalization: challenges in abdominal surgery for migrants and refugees]. AB - The increasing number of refugees, migrants and international travelers influences the surgical spectrum of abdominal diseases. The aim of this review is to familiarize surgeons with specific diseases which are endemic in the patients' countries of origin and are likely to be diagnosed with increasing incidence in Germany. Low levels of hygiene in the countries of origin or refugee camps is associated with a high incidence of numerous infections, such as helminth infections, typhoid fever or amoebiasis, which if untreated can cause surgical emergencies. Historically, some of them were common in Germany but have been more or less eradicated because of the high socioeconomic standard. Echinococcosis and Chagas disease are frequently treated surgically while schistosomiasis can mimic intestinal cancer. Abdominal tuberculosis presents in a variety of abdominal pathologies and frequently causes diagnostic uncertainty. Sigmoid volvulus has a very low incidence among Europeans, but is one of the most common abdominal surgical conditions of adults in endemic countries. The number of patients who eventually undergo surgery for these conditions might be relatively low; however, surgeons must be aware of them and consider them as differential diagnoses in refugees and migrants with acute or chronic abdominal symptoms. PMID- 29344691 TI - [A rare cause of acute pneumoperitoneum]. PMID- 29344692 TI - The epidemiology of wrist fractures in older men: the Osteoporotic Fractures in Men (MrOS) study. AB - : There is limited wrist fracture information on men. Our goal was to calculate frequency and identify risk factors for wrist fracture in the Osteoporotic Fractures in Men (MrOS) study. We confirmed that fracture history and certain medications are predictors, and identified novel predictors including markers of kidney function and physical performance. INTRODUCTION: To calculate the incidence of wrist fractures and their risk factors in older community-dwelling men from the US Osteoporotic Fractures in Men (MrOS) study. METHODS: Using triannual postcards, we identified incident wrist fractures (centrally confirmed by radiology) in men aged >= 65. Potential risk factors included the following: demographics, lifestyle, bone mineral density (BMD), selected medications, biomarkers, and physical function and performance measures. Both baseline and time-varying models were adjusted for age, race/ethnicity, MrOS geographic location, and competing mortality risks. RESULTS: We observed 97 incident wrist fractures among 5875 men followed for an average of 10.8 years. The incidence of wrist fracture was 1.6 per 1000 person-years overall and ranged from 1.0 among men aged 65-69 to 2.4 among men age >= 80. Significant predictors included the following: fracture history after age 50 [hazard ratio (95% CI): 2.48 (1.65, 3.73)], high serum phosphate [1.25 (1.02, 1.53)], use of selective serotonin receptor inhibitor (SSRI) [3.60 (1.96, 6.63), decreased right arm BMD [0.49 (0.37, 0.65) per SD increase], and inability to perform the grip strength test [3.38 (1.24, 9.25)]. We did not find associations with factors commonly associated with wrist and other osteoporosis fractures like falls, diabetes, calcium and vitamin D intake, and alcohol intake. CONCLUSIONS: Among these older, community-dwelling men, we confirmed that fracture history is a strong predictor of wrist fractures in men. Medications such as SSRIs and corticosteroids also play a role in wrist fracture risk. We identified novel risk factors including kidney function and the inability to perform the grip strength test. PMID- 29344694 TI - Towards a better production of bacterial exopolysaccharides by controlling genetic as well as physico-chemical parameters. AB - Bacterial extracellular polymeric substances, which are basically bacterial metabolites, have currently become a subject of great concern of modern day microbiologists and biotechnologists. Among these metabolites, bacterial exopolysaccharides or EPS, in particular, have gained a significant importance. EPS are formed by the bacteria in their late exponential or stationary phase of growth under special situations for specific purposes. They take part in the formation of bacterial biofilms. There is a great diversity in the types of EPS. Strikingly enough, a same species of bacterium can produce different types of EPS under different situations. The importance of EPS is largely because of their different applications in various industries. Now that the bacterial EPS has got the potentiality to become an upcoming tool in various futuristic applications of human benefit, the focus currently develops towards how better they can be produced in the laboratory by promoting the favorable factors for their production. While studying with different EPS forming bacteria, both the intrinsic factors like genetic configuration of the bacteria and the extrinsic factors like culture conditions under the influence of different physico-chemical parameters in order to maximize the EPS production have been taken into consideration. Both the factors have proved their worth. Hence, towards a better outcome for EPS production, it is indicated that a genetic manipulation of the bacteria should be synchronized with a proper selection of its culture condition by controlling different physico-chemical parameters. PMID- 29344693 TI - Triplet-Based Codon Organization Optimizes the Impact of Synonymous Mutation on Nucleic Acid Molecular Dynamics. AB - Since the elucidation of the genetic code almost 50 years ago, many nonrandom aspects of its codon organization remain only partly resolved. Here, we investigate the recent hypothesis of 'dual-use' codons which proposes that in addition to allowing adjustment of codon optimization to tRNA abundance, the degeneracy in the triplet-based genetic code also multiplexes information regarding DNA's helical shape and protein-binding dynamics while avoiding interference with other protein-level characteristics determined by amino acid properties. How such structural optimization of the code within eukaryotic chromatin could have arisen from an RNA world is a mystery, but would imply some preadaptation in an RNA context. We analyzed synonymous (protein-silent) and nonsynonymous (protein-altering) mutational impacts on molecular dynamics in 13823 identically degenerate alternative codon reorganizations, defined by codon transitions in 7680 GPU-accelerated molecular dynamic simulations of implicitly and explicitly solvated double-stranded aRNA and bDNA structures. When compared to all possible alternative codon assignments, the standard genetic code minimized the impact of synonymous mutations on the random atomic fluctuations and correlations of carbon backbone vector trajectories while facilitating the specific movements that contribute to DNA polymer flexibility. This trend was notably stronger in the context of RNA supporting the idea that dual-use codon optimization and informational multiplexing in DNA resulted from the preadaptation of the RNA duplex to resist changes to thermostability. The nonrandom and divergent molecular dynamics of synonymous mutations also imply that the triplet-based code may have resulted from adaptive functional expansion enabling a primordial doublet code to multiplex gene regulatory information via the shape and charge of the minor groove. PMID- 29344695 TI - Succession of microbial communities and changes of incremental oil in a post polymer flooded reservoir with nutrient stimulation. AB - Further exploitation of the residual oil underground in post-polymer flooded reservoirs is attractive and challengeable. In this study, indigenous microbial enhanced oil recovery (IMEOR) in a post-polymer flooded reservoir was performed. The succession of microbial communities was revealed by high-throughput sequencing of 16S rRNA genes and changes of incremental oil were analyzed. The results indicated that the abundances of reservoir microorganisms significantly increased, with alpha diversities decreased in the IMEOR process. With the intermittent nutrient injection, microbial communities showed a regular change and were alternately dominated by minority populations: Pseudomonas and Acinetobacter significantly increased when nutrients were injected; Thauera, Azovibrio, Arcobacter, Helicobacter, Desulfitobacterium, and Clostridium increased in the following water-flooding process. Accompanied by the stimulated populations, higher oil production was obtained. However, these populations did not contribute a persistent level of incremental oil in the reservoir. In summary, this study revealed the alternative succession of microbial communities and the changes of incremental oil in a post-polymer flooded reservoir with intermittent nutrient stimulation process. PMID- 29344696 TI - Reconstruction of the medial patellotibial ligament results in favorable clinical outcomes: a systematic review. AB - PURPOSE: The medial patellotibial ligament (MPTL), the medial patellofemoral ligament (MPFL), and the medial patellomeniscal ligament (MPML) support the stability of the patellofemoral joint. The purpose of this systematic review was to report the surgical techniques and clinical outcomes of the repair or reconstruction of the MPTL in isolation or concomitant with the MPFL and/or other procedures. METHODS: A systematic review of the literature was conducted. Inclusion criteria were articles in the English language that reported clinical outcomes of the reconstruction of the MPTL in isolation or in combination with the MPFL and/or other procedures. Included articles were then cross-referenced to find additional journal articles not found in the initial search. The methodological quality of the articles was determined using the Coleman Methodology Score. RESULTS: Nineteen articles were included detailing the clinical outcomes of 403 knees. The surgical procedures described included hamstrings tenodesis with or without other major procedures, medial transfer of the medial patellar tendon with or without other major procedures and the reconstruction of the MPTL in association with the MPFL. Overall, good and excellent outcomes were achieved in > 75% of cohorts in most studies and redislocations were < 10%, with or without the association of the MPFL. An exception was one study that reported a high failure rate of 82%. Results were consistent across different techniques. The median CMS for the articles was 66 out of 100 (range 30-85). CONCLUSION: Across different techniques, the outcomes are good with low rates of recurrence, with one article reporting a high rate of recurrence. Quality of the articles is variable, from low to high. Randomized control trials are needed for a better understanding of the indications, surgical techniques, and clinical outcomes. This systematic review suggests that the reconstruction of the MPTL leads to favorable clinical outcomes and supports the role of the procedure as a valid surgical patellar stabilization procedure. LEVEL OF EVIDENCE: IV: systematic review of level I-IV studies. PMID- 29344697 TI - Could spouses of colorectal cancer patients possess higher risk of developing colorectal cancer? PMID- 29344698 TI - Concentrations of Cadmium, Copper, and Zinc in Macrobrachium rosenbergii (Giant Freshwater Prawn) from Natural Environment. AB - This study analyzed the levels of cadmium (Cd), copper (Cu), and zinc (Zn) by the flame atomic absorption spectrophotometer (FAAS), in the muscle tissues, exoskeletons, and gills from freshwater prawn (Macrobrachium rosenbergii) (n = 20) harvested from natural habitat in Kerang River, Malaysia on 25th November 2015. Significant increase of the metals level in muscle tissue and gill (r > 0.70, p < 0.05) were observed with increase in length except for Cu in gills. No relationship was found between metals level in exoskeleton and length. The concentrations of Cd, Cu and Zn were significantly higher (p < 0.05) in males (muscle tissues and exoskeleton) except for Cd in exoskeleton. In gills, only Cu was significantly higher (p < 0.05) in female than male. All samples contained metals below the permissible limit for human consumption (i.e., Cd < 2.00 mg/kg; Cu < 30.00 mg/kg; Zn < 150 mg/kg). Annual metals monitoring in prawn and environmental samples is recommended to evaluate changes of metals bioaccumulation and cycling in the system, which is useful for resources management. PMID- 29344699 TI - Feasibility study of MR-guided transgluteal targeted in-bore biopsy for suspicious lesions of the prostate at 3 Tesla using a freehand approach. AB - OBJECTIVE: The aim of our study was (1) to establish an in-bore targeted biopsy of suspicious prostate lesions, avoiding bowel penetration using a transgluteal approach and (2) to assess operator setup, patient comfort and safety aspects in the clinical setting for freehand real-time MR-guidance established for percutaneous procedures in an open MR-scanner. MATERIAL AND METHODS: 30 patients with suspect prostate lesions were biopsied in a cylindrical 3T-MRI system using a transgluteal approach in freehand technique. One to three biopsies were sampled using continuous dynamic imaging. Size, location and visibility of the lesion, intervention time, needle artefact size, interventional complications and histopathological diagnosis were recorded. RESULTS: All biopsies were technically successful. Nineteen patients showed evidence of prostate carcinoma. Cancer detection rate was 50 % in patients with previously negative TRUS-biopsy. The average intervention time was 26 min including a learning curve as the time was 13 min by the end of the study. No antibiotic prophylaxis was performed as none of the patients showed signs of infection. CONCLUSIONS: MR-guided targeted freehand biopsies of prostate lesions using a transgluteal approach are both technically feasible and time efficient in a standard closed-bore 3T-MR scanner as well as safe for the individual patient. KEY POINTS: * Open-bore freehand interventional principles were adapted to closed-bore systems. * Prostate MR guided freehand biopsies were feasible in a clinical setting. * A transgluteal approach provides a short and simplified work flow. * An inoculation of the prostate with bowel flora is avoided. * The intervention time is comparable to the stereotactic approach. PMID- 29344700 TI - Dual mobility hip arthroplasty provides better outcomes compared to hemiarthroplasty for displaced femoral neck fractures: a retrospective comparative clinical study. AB - PURPOSE: Total hip arthroplasty with a dual mobility cup (DMC) is a proposed alternative to the widely performed bipolar hemiarthroplasty (BHA) for treating displaced intracapsular femoral neck fractures (DFNF) in the elderly. However, the comparison between the two modalities has not been extensively conducted thus far. METHODS: A retrospective cohort study was conducted with DFNF patients aged over 65 years who were treated either by BHA or DMC. After propensity matching each group comprised 84 patients (168 patients in total) and was analyzed using peri-operative and post-operative parameters. RESULTS: Mean follow-up durations were 22.1 and 21.7 months in the BHA and DMC groups, respectively. The BHA group demonstrated significantly less intra-operative blood loss (p = 0.001) and a shorter length of operation (p < 0.001). However, there was no difference in one year mortality (p = 0.773). The Harris hip score (HHS) was significantly higher (p = 0.018) in the DMC group. The dislocation rate was not different between the two groups (p = 1.000). CONCLUSION: In DFNF patients aged over 65 years, short term observation showed DMC to be the preferred treatment over BHA with better clinical outcome, without disadvantages in mortality or dislocation rate. Further long-term investigations are recommended to strengthen these results. PMID- 29344701 TI - The fate of immunocompromised patients in the treatment of chronic periprosthetic joint infection: a single-centre experience. AB - PURPOSE: Immunocompromised patients with periprosthetic joint infection (PJI) are rare and currently there are no reliable guidelines according to which these infections can be successfully managed. The purpose of this study was to report the clinical course of different strategies for treatment of PJI in frail patients. METHODS: A retrospective analysis between 2004 and 2015 included 29 immunocompromised patients (13 hips and 16 knees) with chronic PJI who underwent one-stage revision or debridement, antibiotics and implant retention (DAIR). Patients were stratified according to the Musculoskeletal Infection Society (MSIS) staging system and the clinical course included recurrence of infection and functional outcomes which were extracted from patients' charts. The average follow-up was 68 months (range, 26-149 months). RESULTS: Sixteen of the 29 patients had recurrent infections. At last follow-up, 13 patients were on chronic suppressive antibiotic therapy, three patients died but not one death was considered to be related to the infection. A recurrent infection was observed in 13 of the 24 medically compromised hosts (MSIS type B). Sixteen of the 24 patients underwent one-stage revision; another eight of them underwent DAIR. The infection recurred in three of the five patients (60%) with the worst host grades (MSIS type C). One-stage revision was performed in one of the five patients and the remaining four patients received DAIR. CONCLUSION: Our results show that we should compromise our expectation and intemperate treatment for such a population. The goals of PJI treatment in these patients should take into account their preferences and may pay more attention to the concept of disease control rather than cure, especially for patients with severe comorbidities (MSIS C). LEVEL OF EVIDENCE: Therapeutic Level IV. PMID- 29344702 TI - [Mesenchymal abdominal tumors]. PMID- 29344704 TI - [The role of PSMA PET-CT in patients with metastatic prostate cancer]. AB - Prostate-specific membrane antigen (PSMA) positron emission tomography-computed tomography (PET-CT) imaging for the localization of prostate cancer is increasingly available in Germany. The advances and limitations in different disease stages are reviewed. As the clinical relevance of oligometastatic disease in primary cancer detected by PSMA PET-CT imaging is not yet completely understood, it should only be used in clinical trials. In recurrent prostate cancer after therapy with curative intent, PSMA PET-CT shows encouraging potential for the planning of salvage therapy. In metastatic castration-resistant prostate cancer evidence for its use is not available. PMID- 29344705 TI - [Which foot deformities should be radiologist be familiar with?] AB - Most deformities of the foot are visible at birth and can be diagnosed without imaging. They can be divided into congenital flexible, congenital structural and acquired foot deformities. The most common congenital flexible foot deformity in children is the metatarsus adductus, which usually requires no long-term therapy. Regarding congenital structural deformities, such as the clubfoot and talus verticalis, plaster therapy should be started during the first week of life, so that by the end of the first year of life and the beginning of the verticalization, a pain-free resilient foot with normal function is present. Imaging is usually only necessary if a relapse arises. Coalitio of the tarsal bones is often visible only in the course of growth through the development of a rigid flatfoot and always requires imaging to confirm the diagnosis. This article is intended to give the radiologist an overview of the most important deformities and to inform about their course and therapy. PMID- 29344706 TI - Long-term follow-up of 1217 consecutive short-stem total hip arthroplasty (THA): a retrospective single-center experience. AB - BACKGROUND: An arthroplasty registry in Germany has been recently established but long-term results for most short-stem innovations are missing. Short-stem hip arthroplasty is usually indicated in young active patients. Our indication was extended to older age groups, femoral neck fractures (FNF), and dysplasia. We evaluated all total hip arthroplasties (THAs) in this population with a collum femoris preserving stem (CFP) performed from 2003 to 2013. METHODS: A consecutive cohort of 1217 CFP THAs with a mean age of 68.7 years was followed retrospectively for a median of 4.8 years (patient follow-up interquartile range from 3.0 to 6.9 years). A questionnaire, which we used in two previous studies, was answered by 89.15% of patients and included information regarding complaints, grade of satisfaction, re-operations, and dislocation. Of the 1217 patients, 77 had died. Survival of the stem and the cup was assessed using a competing risks approach according to an Aalen-Johanson estimator with revision for septic or aseptic loosening or death as a competing endpoint. RESULTS: Of the patients who answered the questionnaire, 92.5% had no complaints related to the procedures. In all 1217 patients, there were 43 revisions (4.2%) as follows: stem and cup revisions due to aseptic loosening of the stem (n = 10), infections (n = 6), pain (n = 4), or trauma (n = 3); cup revisions due to aseptic loosening (n = 3), dislocation (n = 5), and offset revisions (n = 12). Survivorship was 96% for the stem and 99% for the cup 9 years postoperatively. Statistical analysis confirmed a higher risk for revision in patients with a younger age (p = 0.033), male sex (p = 0.040), dysplasia (p = 0.032), and undersized or extra-large stems for stem revisions (p = 0.001) and female sex (p = 0.036) for cup revisions. FNF (p > 0.20) and age >= 80 years (p = 0.114) had no higher risk for loosening of the stem. Our data is also compared with the current literature, especially with the available CFP studies. CONCLUSION: The survival rate of the CFP stem was as high as 96% after 9 years of followup which compares well-to-previously published long term survival rates. There is no higher risk for revision in patients 80 years old or older and in cases with femoral neck fractures. The CFP preserves also allowed using standard stems in the rare cases of revision. PMID- 29344707 TI - Effects of the establishment of a trauma center and a new protocol on patients with hemodynamically unstable pelvic fractures at a single institution in Korea. AB - PURPOSE: The aim of this study was to determine whether the outcomes of patients with hemodynamically unstable pelvic bone fractures changed after the introduction of a protocol including extraperitoneal pelvic packing (EPP) and the establishment of a trauma center. METHODS: We analyzed data of adult patients (>= 18 years old) with hemodynamically unstable pelvic bone fractures who visited a single trauma center from February 2009 to October 2016. In July 2014, a new protocol for pelvic fractures was implemented, and a trauma center was established. Therefore, patient outcomes were compared by period (period I: pre protocol vs. period II: post-protocol). RESULTS: Seventy-nine patients with hemodynamically unstable pelvic bone fractures were recruited. The time to angiographic embolization after arrival at the emergency room decreased significantly in period II when compared to period I (182.9 vs. 268.9 min, respectively, p < 0.001). The time required to intervention, including EPP, also decreased, from 268.9 +/- 132.4 min in period I to 141.9 +/- 79.9 min in period II (p < 0.001). The overall mortality rate decreased from 47.2% in period I to 23.3% in period II (p = 0.033), and mortality related to hemorrhagic shock in particular, was significantly lowered, from 27.8% in period I to 4.7% in period II (p = 0.009). CONCLUSIONS: The establishment of a trauma center and the implementation of a new protocol that included EPP were effective in the treatment of patients with hemodynamically unstable pelvic fractures. PMID- 29344708 TI - Treatment of combined traumatic brain injury and hemorrhagic shock with fractionated blood products versus fresh whole blood in a rat model. AB - INTRODUCTION: Treatment of combined traumatic brain injury and hemorrhagic shock, poses a particular challenge due to the possible conflicting consequences. While restoring diminished volume is the treatment goal for hypovolemia, maintaining adequate cerebral perfusion pressure and avoidance of secondary damage remains a treatment goal for the injured brain. Various treatment modalities have been proposed, but the optimal resuscitation fluid and goals have not yet been clearly defined. A growing body of evidence suggests that in hypovolemic shock, resuscitation with fresh whole blood (FWB) may be superior to component therapy without platelets (which are likely to be unavailable in the pre-hospital setting). Nevertheless, the effects of this approach have not been studied in the combined injury. Previously, in a rat model of combined injury we have found that mild resuscitation to MABP of 80 mmHg with FWB is superior to fluid resuscitation or aggressive resuscitation with FWB. In this study, we investigate the physiological and neurological outcomes in a rat model of combined traumatic brain injury (TBI) and hypovolemic shock, submitted to treatment with varying amounts of FWB, compared to similar resuscitation goals with fractionated blood products-red blood cells (RBCs) and plasma in a 1:1 ratio regimen. MATERIALS AND METHODS: 40 male Lewis rats were divided into control and treatment groups. TBI was inflicted by a free-falling rod on the exposed cranium. Hypovolemia was induced by controlled hemorrhage of 30% blood volume. Treatment groups were treated either with fresh whole blood or with RBC + plasma in a 1:1 ratio, achieving a resuscitation goal of a mean arterial blood pressure (MAP) of 80 mmHg at 15 min. MAP was assessed at 60 min, and neurological outcomes and mortality in the subsequent 24 h. RESULTS: At 60 min, hemodynamic parameters were improved compared to controls, but not significantly different between treatment groups. Survival rates at 48 h were 100% for both of the mildly resuscitated groups (MABP 80 mmHg) with FWB and RBC + plasma. The best neurological outcomes were found in the group mildly resuscitated with FWB and were better when compared to resuscitation with RBC + plasma to the same MABP goal (FWB: Neurological Severity Score (NSS) 6 +/- 2, RBC + plasma: NSS 10 +/- 2, p = 0.02). CONCLUSIONS: In this study, we find that mild resuscitation with goals of restoring MAP to 80 mmHg (which is lower than baseline) with FWB, provided better hemodynamic stability and survival. However, the best neurological outcomes were found in the group resuscitated with FWB. Thus, we suggest that resuscitation with FWB is a feasible modality in the combined TBI + hypovolemic shock scenario, and may result in improved outcomes compared to platelet-free component blood products. PMID- 29344709 TI - Microbial Characterization of Methanogenic and Iron-reducing Consortium in Reactors with Polychlorinated Biphenyls. AB - Recent papers have confirmed current environmental pollution and the continuous release of polychlorinated biphenyls (PCBs) despite the prohibition of its manufacture worldwide. As the dehalogenating microorganisms are able to remove halogens from various analogous compounds, the characterization of PCB metabolisms can improve the degradation of similar compounds. Thus, this study extensively evaluated the microbial community developed in methanogenic and iron reducing reactors. The horizontal-flow anaerobic reactor (HAIB) with real waste of Aroclor (1 mL L-1) was fed with mineral medium, ethanol, and sodium formate. Bacteria belonging to Thermotogaceae (Thermotogae), Geobacteraceae, Chloroflexi, Proteobacteria, and Firmicutes (Clostridium) were identified in the HAIB reactor. Bacteria belonging to the Chloroflexi, Firmicutes, and Geobacteraceae are associated with the degradation of hydrocarbons and could be related to the Aroclor waste in this paper. Furthermore, 5.26 * 1012 cells gTVS-1 of iron reducing bacteria were quantified by the most probable number method in the HAIB reactor, suggesting that this group has an important role in aromatic degradation. Moreover, the evaluation of methanogenic and iron-reducing microorganisms in batch reactors with Aroclor 1260 was performed and the biomass growth was not affected by the addition of PCB. The methane production reached 0.38 umol CH4 gTVS-1 and the iron reduction attained 90% in batch reactors. Through microbial analyses from HAIB and batch reactors, lower diversity was evidenced in the presence of PCB. This paper indicates the relevant role of iron reducing organisms and Chloroflexi, Geobacteraceae, and Firmicutes group in PCB metabolism. PMID- 29344710 TI - Radiation Doses to Operators in Hepatobiliary Interventional Procedures. AB - PURPOSE: The primary aim of this study is to provide a summary of operators' radiation doses during hepatobiliary fluoroscopic guided procedures. In addition, patient dose in these procedures was also documented. MATERIALS AND METHODS: A total of 283 transarterial chemoembolisation (TACE) and 302 biliary procedures, including 52 percutaneous transhepatic cholangiogram (PTC), 36 bilioplasty and 214 biliary catheter changes (BCC) performed over 14 months, were included. Electronic personal dosimeters were used to measure operator radiation doses. Effective dose (E) was calculated using modified Niklason algorithm. Patient dose was measured as dose area product (DAP) and fluoroscopy time (FT). RESULTS: For TACE, E for radiologist ranged between 0 and 9.96 uSv, for radiographer 0-0.99 uSv and for nurse 0-4.65 uSv. The patient DAP and FT ranged between 1.5 and 421.9 Gy cm2 and 1.91-67.25 min. For PTC, E for the radiologist ranged between 0.33 and 55.89 uSv, for radiographer 0-38.61 uSv and for nurse 0-3.18 uSv. Patient DAP and FT ranged between 1.7 and 218.4 Gy cm2 and 2.07-71.53 min. For bilioplasty, E ranged between 0.09 and 9.24 uSv for radiologist, 0-0.84 uSv for radiographer and 0-1.38 uSv for nurse. The patients' DAP and FT ranged from 0.7 to 52.54 Gy cm2 and 1.13-24.47 min. For BCC, E ranged from 0 to 12.78 uSv for radiologist, 0-8.43 uSv for radiographer and 0-4.05 uSv for nurse. Patient DAP and FT ranged between 0.12 and 117.3 Gy cm2 and 0.57-15.83 min. CONCLUSIONS: This study shows that doses to all operators performing hepatobiliary interventional procedures can be very low. PMID- 29344711 TI - Adult 'PICC' Device May be Used as a Tunnelled Central Venous Catheter in Children. AB - PURPOSE: Central venous access in children, in particular small children and infants, is challenging. We have developed a technique employing adult peripherally inserted central venous catheters (PICCs) as tunnelled central venous catheters (TCVCs) in children. The principal advantage of this novel technique is that the removal technique is less complex than that of conventional cuffed TCVCs. The catheter can be removed simply by being pulled out and does not require general anaesthesia. The purpose of this study is to determine the success, safety and utility of this technique and to identify the rate of late complications. We describe the 6-year experience in our unit. MATERIALS AND METHODS: Electronic and paper medical records were reviewed for consecutive paediatric patients who had a PICC device inserted as a TCVC over a 6-year period (September 2009 through July 2015). The following data were recorded-patient demographics, setting for PICC as TCVC insertion, use of ultrasound and fluoroscopy, PICC device type, early or late complications and date of and reason for removal. RESULTS: Twenty-one PICCs were inserted as TCVCs in 19 children, all aged less than 10 years. Mean patient age at the time of placement was 3.7 years. Average patient weight was 15.7 kg. All insertions were successful with no significant immediate complications recorded. The most common indication for insertion in our patient sample was pseudo-obstruction secondary to gastrointestinal dysmotility disorder (24%), with cystic fibrosis infective exacerbation being the second most frequent diagnosis (14%). Suspected catheter related infection led to early device removal in one case (4.8%). Inadvertent dislodgement occurred in one case (4.8%). Nineteen of the 21 devices (90.4%) lasted for the total intended duration of use. CONCLUSION: Using a PICC device as a TCVC in small children appears to be a safe technique, with an acceptable complication profile. PMID- 29344714 TI - Angiographic Anatomy and Relevance of 3 and 9 O'clock Arteries During Radioembolization. AB - PURPOSE: 3 and 9 o'clock arteries (3&9As) which supply the common hepatic duct connect hepatic with duodenal/pancreatic territories. The study purpose is to describe the angiographic anatomy of 3&9As and discuss their relevance when performing radioembolization (RE) of liver malignancies. MATERIALS AND METHODS: The anatomy of the 3&9As was systematically investigated by a retrospective analysis of angiograms, technetium Tc-99 m-macroaggregated albumin (MAA) scintigrams, yttrium-90 (Y90) Bremsstrahlung-SPECT/CT datasets, and clinical data of 153 patients who underwent RE between 2010 and 2013. RESULTS: Analysis of preprocedural angiograms identified 3&9As in 36 (24%) of the 153 patients. Following embolization of the gastroduodenal artery, 3&9As were seen in 53 cases (35%). The three most common origins of the 3&9As were the right hepatic artery (n = 14), the cystic artery (n = 11), and S5 and S6 segmental arteries (n = 5 each). Extrahepatic Tc-99 m-MAA deposition in the territory of the 3&9As was significantly more frequent when 3&9As were detectable on preprocedural angiograms (28%visible vs. 11%not visible; p = 0.001) and especially when the 3&9As were not embolized or bridged prior to RE (50%not occluded/bridged vs. 19%occupied/bridged; p = 0.043). The presence of extrahepatic Y90 Bremsstrahlung after RE (n = 17) was attributable to microsphere diversion via the 3&9A territory in four patients and possible diversion via this territory in nine patients. Five of these 13 patients presented with epigastric pain, nausea, or vomiting (CTCAE severity grade <= 3) (p = 0.014). CONCLUSION: 3&9As are commonly detectable during evaluation angiography prior to RE, have a variable angioanatomic origin, and should be prophylactically occluded to prevent complications. PMID- 29344713 TI - Prognostic Factors in Overall Survival of Patients with Unresectable Intrahepatic Cholangiocarcinoma Treated by Means of Yttrium-90 Radioembolization: Results in Therapy-Naive Patients. AB - INTRODUCTION: To investigate prognostic factors in unresectable intrahepatic cholangiocarcinoma (ICC) therapy-naive patients after yttrium-90 (Y-90) radioembolization (RE) therapy. MATERIALS AND METHODS: Between 2005 and 2016, 21 patients with ICC were treated with Y-90 RE only and their survival data were analyzed. Patients were stratified and response was assessed by the Response Evaluation Criteria in Solid Tumors (RECIST) criteria. RESULT: The overall median survival was 15 months. Survival was significantly (p = 0.009) prolonged in patients with tumor burden of <= 25% (n = 8, OS 37.5 months) versus those with a tumor burden of 25-50% (n = 13, OS 15 months). The other variables: tumor morphology (infiltrative vs. peripheral), tumor distribution (solitary vs. multifocal), lobes involved (unilobar vs. bilobar), FDG PET status (FDG avid vs. non-avid), RE treatment sessions (1 session vs. 2 sessions), metastases (metastasis vs. no metastasis) and RECIST criteria, had no significant impact on survival. CONCLUSION: Tumor burden represents a key prognostic factor of survival in therapy-naive patients with unresectable ICC treated with Y-90 RE therapy only. PMID- 29344712 TI - Usefulness of Hydrogel-Coated Coils in Embolization of Pulmonary Arteriovenous Malformations. AB - PURPOSE: To evaluate the usefulness of hydrogel-coated coils for preventing recanalization after coil embolization of pulmonary arteriovenous malformations (PAVMs). MATERIALS AND METHODS: Thirty-seven consecutive patients with 57 untreated PAVMs underwent coil embolization with hydrogel-coated coils between January 2013 and Jun 2017. The mean age was 49 years (range 9-83 years), and there were seven male patients and 30 female patients. The median size of the feeding artery was 3.7 mm (range 1.5-6.1 mm), and the median size of the venous sac was 9.3 mm (range 2.6-36.6 mm). For all PAVM, embolization was attempted using 0.018-in. hydrogel-coated coils with or without other coils (0.0135-0.018 in. bare platinum coils and fibered platinum coils). Technical success rate, recanalization rate, and complications were evaluated. Technical success was defined as completion of embolization using hydrogel-coated coils. Recanalization was evaluated with time-resolved magnetic resonance angiography and/or pulmonary angiography. RESULTS: In 56 of 57 PAVMs, embolization was successfully performed with hydrogel-coated coils. Therefore, the technical success rate was 98% (56/57). The number of PAVMs at risk was 56, 42, 18, and 12 at 0, 12, 24, and 36 months, respectively. There was no recanalization with a mean follow-up period of 19 months (range 2-47 months) in 56 PAVMs embolized with hydrogel-coated coils. There were no major complications. As a minor complication, local pain was observed in 8 of 43 sessions (19%) after embolization. CONCLUSIONS: Hydrogel coated coils may be useful for preventing recanalization after the embolization of PAVMs. PMID- 29344715 TI - A Case of Stent Fracture After Transjugular Intrahepatic Portosystemic Shunt. PMID- 29344716 TI - Safety and Effectiveness of Palliative Tunneled Peritoneal Drainage Catheters in the Management of Refractory Malignant and Non-malignant Ascites. AB - PURPOSE: To determine the safety and effectiveness of tunneled peritoneal catheters in the management of refractory malignant and non-malignant ascites. MATERIALS AND METHODS: An IRB-approved retrospective review was undertaken of patients who underwent ultrasound and fluoroscopy-guided tunneled peritoneal catheter placement for management of refractory malignant or non-malignant ascites between January 1, 2009, and March 14, 2014. RESULTS: A total of 137 patients (76 M/61 F, mean age 62.9 years) underwent tunneled peritoneal catheter placement for refractory malignant (N = 119; 86.9%) or non-malignant (N = 18; 13.1%) ascites. Technical success was 100% with no immediate complications. Nineteen patients (13.9%) experienced a total of 11 minor and 12 major complications. Nine patients developed a catheter-associated infection. The remaining complications included leakage at the dermatotomy site (N = 8), catheter dislodgement (N = 2), obstruction (N = 2), and groin pain (N = 2). Patients who developed a catheter-associated infection had a significantly longer catheter dwell time compared to those who did not develop an infection (median, 96.5 vs. 20 days; p < 0.01). Nine patients (6.6%) were lost to follow-up. Of the remaining 128 patients, 125 died and the majority had a catheter in place (90.4%) at the time of death. There was one catheter-associated death (bacterial peritonitis; 0.8%). The median time from catheter placement to death was significantly shorter in patients with malignant versus non-malignant ascites (18.5 vs. 85 days; p < 0.0001). CONCLUSIONS: Tunneled peritoneal drainage catheters are effective and relatively safe in the management of malignant and non-malignant ascites. Longer catheter dwell time may be a risk factor for catheter-associated infection, particularly in patients with a longer anticipated survival in the palliative setting. PMID- 29344717 TI - Multiple Enlarged Aneurysms in Primary Racemose Hemangioma of the Bronchial Artery: Successful Prophylactic Transcatheter Arterial Embolization Using N-butyl 2-cyanoacrylate and Coils. AB - An asymptomatic 48-year-old man presented with multiple aneurysms in a primary racemose hemangioma of the right bronchial artery. Bronchial arteriography revealed a tortuous artery with four fusiform aneurysms of varying sizes and aneurysmal dilatation with marked thrombus formation in the long segment of the distal portion. Because the tip of catheter could not pass beyond the aneurysmal dilatation, we performed balloon-occluded embolization using a mixture of N-butyl 2-cyanoacrylate (NBCA) and iodized oil. For four other aneurysms, we performed embolization using a coil alone or with NBCA. After 6 months, right bronchial arteriography revealed no enhancement of the aneurysms. Despite the rarity of this procedure, embolization with NBCA is a good option for bronchial artery aneurysm embolization. PMID- 29344718 TI - Combination of baseline FDG PET/CT total metabolic tumour volume and gene expression profile have a robust predictive value in patients with diffuse large B-cell lymphoma. AB - PURPOSE: This study evaluated the predictive significance of total metabolic tumour volume (TMTV) measured on baseline FDG PET/CT and its value in addition to gene expression profiling using a new method of gene analysis (rapid reverse transcriptase multiplex ligation-dependent probe amplification assay, RT-MLPA) in patients with diffuse large B-cell lymphoma treated with R-CHOP or R-CHOP-like chemotherapies. METHODS: The analysis included 114 patients. TMTV was measured using a 41% SUVmax threshold and tumours were classified into GCB or ABC subtypes according to the RT-MLPA assay. RESULTS: The median follow-up was 40 months. the 5-year progression-free survival (PFS) was 54% and the 5-year overall survival (OS) was 62%. The optimal TMTV cut-off value was 261 cm3. In 59 patients with a high TMTV the 5-year PFS and OS were 37% and 39%, respectively, in comparison with 72% and 83%, respectively, in 55 patients with a low TMTV (p = 0.0002 for PFS, p < 0.0001 for OS). ABC status was significantly associated with a worse prognosis. TMTV combined with molecular data identified three groups with very different outcomes: (1) patients with a low TMTV whatever their phenotype (n = 55), (2) patients with a high TMTV and GCB phenotype (n = 33), and (3) patients with a high TMTV and ABC phenotype (n = 26). In the three groups, 5-year PFS rates were 72%, 51% and 17% (p < 0.0001), and 5-year OS rates were 83%, 55% and 17% (p < 0.0001), respectively. In multivariate analysis, TMTV, ABC/GCB phenotype and International Prognostic Index were independent predictive factors for both PFS and OS (p < 0.05 for both). CONCLUSIONS: This integrated risk model could lead to more accurate selection of patients that would allow better individualization of therapy. PMID- 29344719 TI - Phosphorylation of vasodilator-stimulated phosphoprotein contributes to myocardial ischemic preconditioning. AB - Ischemic preconditioning (IP) is a well-known strategy to protect organs against cell death following ischemia. The previous work has shown that vasodilator stimulated phosphoprotein (VASP) is involved in cytoskeletal reorganization and that it holds significant importance for the extent of myocardial ischemia reperfusion injury. Yet, the role of VASP during myocardial IP is, to date, not known. We report here that VASP phosphorylation at serine157 and serine239 is induced during hypoxia in vitro and during IP in vivo. The preconditioning induced VASP phosphorylation inactivates the GP IIb/IIIa integrin receptor on platelets, which results in the reduced formation of organ compromising platelet neutrophil complexes. Experiments in chimeric mice confirmed the importance of VASP phosphorylation during myocardial IP. When studying this in VASP-/- animals and in an isolated heart model, we were able to confirm the important role of VASP on myocardial IP. In conclusion, we were able to show that IP-induced VASP phosphorylation in platelets is a protective mechanism against the deleterious effects of ischemia. PMID- 29344720 TI - Characteristics of pericytes in diethylstilbestrol (DES)-induced pituitary prolactinoma in rats. AB - Prolactinomas are the most common tumor of the human pituitary. They result in excessive prolactin secretion and important changes in the vasculature. Pericytes are perivascular cells associated with capillaries and have crucial roles in physiological and pathological neovascularization. We previously reported that pericytes produce type I and III collagens in the anterior pituitary of adult rats. In addition, pituitary pericytes contained well-developed cell organelles and actively synthesized collagens during early postnatal development. However, the characteristics of pericytes in pituitary tumors are unclear. In this study, we used diethylstilbestrol (DES)-treated rats as an animal model of prolactinoma. Using five common pericyte markers, more pericytes were observed in rats treated with DES for 3 months (prolactinoma) compared to the control. Transmission electron microscopy revealed that attached and semidetached pericytes exhibited active cell organelles. Moreover, we identified pericyte migration between capillaries. Although the fine structure of pituitary pericytes was active in prolactinoma, expressions of type I and III collagen mRNAs were greatly diminished. In sum, the characteristics and functions of pericytes were altered in pituitary tumors. This study is the first to clarify fine structural changes of pericytes in rat prolactinomas and improves our understanding of the function of pericytes under pathological conditions. PMID- 29344721 TI - Post-mortem MR angiography: quantitative investigation and intravascular retention of perfusates in ex situ porcine hearts. AB - As the implementation of minimally invasive imaging techniques in both forensic and pathological practice increases, research in this area focuses on addressing recognised diagnostic weaknesses of current approaches. Assessment of sudden cardiac death (SCD) can be considered one such area in which post-mortem imaging still shows diagnostic weaknesses. We hypothesise that magnetic resonance imaging (MRI) with an angiographic adjunct may improve the visualisation and interpretation of cardiac pathologies in a post-mortem setting. To systematically investigate this hypothesis, selected perfusates (paraffin oil, Gadovist(r); doped physiological solution and polyethylene glycol (PEG)) were injected into the left anterior descending (LAD) artery of ex situ porcine hearts to assess the visualisation of perfusates in MRI as well as their intravascular retention over 12 h. Morphological images were acquired and quantitative T1 maps were generated from inversion recovery data. Visualisation of vascular structure and image quality were assessed using signal-to-noise and contrast-to-noise ratios. Intravascular retention was assessed both visually and statistically using a volume of interest (VOI) approach to analyse significant changes in signal intensity in and around the filled LAD artery, as well as changes in the longitudinal relaxation time (T1) in adjacent myocardium. In addition to presenting possible mechanisms explaining perfusate extravasation given the increased permeability of post-mortem vessels, the potential diagnostic consequences of this phenomenon and the importance of contrast stability and extended intravascular retention are discussed. In light of our findings and these considerations, paraffin oil emerged as the preferred perfusate for use in post-mortem MR angiography. PMID- 29344722 TI - Benefit of the addition of hormone therapy to neoadjuvant anthracycline-based chemotherapy for breast cancer: comparison of predicted and observed pCR. AB - INTRODUCTION: Neoadjuvant hormonal therapy is generally considered a valid option for hormone receptor positive breast cancer (BC) patients who are unfit for chemotherapy or surgery. AIMS: Whilst numerous studies analyzed efficacy of neoadjuvant chemotherapy (CT) or endocrine therapy (HT) alone in hormone receptor positive patients, there is a lack of research looking at the usefulness of a preoperative combinatorial approach of CT and HT in this patient subgroup. METHODS: Using a predictive model previously described in the literature, developed to analyze the probability of benefit from preoperative chemotherapy, we were able to compare pathological complete response (pCR) rates expected with the use of CT alone with the pCR rates reported in a population of 192 patients treated with the combination of tamoxifen plus anthracycline-based CT at Cremona Hospital between 2003 and 2006. RESULTS: Even with a relatively small patient population, this approach provided insightful information for the selection of hormone receptor positive BC patients most likely to benefit from the use of preoperative HT and CT in combination. Whilst no statistically significant benefit was obtained with the addition of tamoxifen to neoadjuvant chemotherapy in the entire population, or in any of the molecular stratification subgroups, the analysis of the calibration curve showed that a combinatorial approach may improve pCR in patients with luminal B tumors. More specific trials should be designed to confirm our initial results. CONCLUSION: To the best of our knowledge, this is the first report investigating the efficacy of the combination of CT and HT in the neoadjuvant treatment of hormone receptor positive BC. PMID- 29344724 TI - When the rhythm disappears and the mind keeps dancing: sustained effects of attentional entrainment. AB - Research has demonstrated that the human cognitive system allocates attention most efficiently to a stimulus that occurs in synchrony with an established rhythmic background. However, our environment is dynamic and constantly changing. What happens when rhythms to which our cognitive system adapted disappear? We addressed this question using a visual categorization task comprising emotional and neutral faces. The task was split into three blocks of which the first and the last were completed in silence. The second block was accompanied by an acoustic background rhythm that, for one group of participants, was synchronous with face presentations, and for another group was asynchronous. Irrespective of group, performance improved with background stimulation. Importantly, improved performance extended into the third silent block for the synchronous, but not for the asynchronous group. These data suggest that attentional entrainment resulting from rhythmic environmental regularities disintegrates only gradually after the regularities disappear. PMID- 29344723 TI - Structural associations between organelle membranes in nectary parenchyma cells. AB - MAIN CONCLUSION: The close association between membranes and organelles, and the intense chloroplast remodeling in parenchyma cells of extrafloral nectaries occurred only at the secretion time and suggest a relationship with the nectar secretion. Associations between membranes and organelles have been well documented in different tissues and cells of plants, but poorly explored in secretory cells. Here, we described the close physical juxtaposition between membranes and organelles, mainly with chloroplasts, in parenchyma cells of Citharexylum myrianthum (Verbenaeceae) extrafloral nectaries under transmission electron microscopy, using conventional and microwave fixation. At the time of nectar secretion, nectary parenchyma cells exhibit a multitude of different organelle and membrane associations as mitochondria-mitochondria, mitochondria endoplasmic reticulum, mitochondria-chloroplast, chloroplast-nuclear envelope, mitochondria-nuclear envelope, chloroplast-plasmalemma, chloroplast-chloroplast, chloroplast-tonoplast, chloroplast-peroxisome, and mitochondria-peroxisome. These associations were visualized as amorphous electron-dense material, a network of dense fibrillar material and/or dense bridges. Chloroplasts exhibited protrusions variable in shape and extension, which bring them closer to each other and to plasmalemma, tonoplast, and nuclear envelope. Parenchyma cells in the pre- and post-secretory stages did not exhibit any association or juxtaposition of membranes and organelles, and chloroplast protrusions were absent. Chloroplasts had peripheral reticulum that was more developed in the secretory stage. We propose that such subcellular phenomena during the time of nectar secretion optimize the movement of signaling molecules and the exchange of metabolites. Our results open new avenues on the potential mechanisms of organelle contact in parenchyma nectary cells, and reveal new attributes of the secretory cells on the subcellular level. PMID- 29344725 TI - Stimulating numbers: signatures of finger counting in numerosity processing. AB - Finger counting is one of the first steps in the development of mature number concepts. With a one-to-one correspondence of fingers to numbers in Western finger counting, fingers hold two numerical meanings: one is based on the number of fingers raised and the second is based on their ordinal position within the habitual finger counting sequence. This study investigated how these two numerical meanings of fingers are intertwined with numerical cognition in adults. Participants received tactile stimulation on their fingertips of one hand and named either the number of fingers stimulated (2, 3, or 4 fingers; Experiment 1) or the number of stimulations on one fingertip (2, 3, or 4 stimulations; Experiment 2). Responses were faster and more accurate when the set of stimulated fingers corresponded to finger counting habits (Experiment 1) and when the number of stimulations matched the ordinal position of the stimulated finger (Experiment 2). These results show that tactile numerosity perception is affected by individual finger counting habits and that those habits give numerical meaning to single fingers. PMID- 29344726 TI - The safety and efficacy of elbasvir and grazoprevir in participants with hepatitis C virus genotype 1b infection. AB - BACKGROUND: Genotype 1b (GT1b) is the most common subtype of the hepatitis C virus (HCV). We present an integrated analysis of 1070 participants with HCV GT1b infection from 30 countries who received elbasvir/grazoprevir for 12 weeks. METHODS: This is a retrospective analysis of data from participants with chronic HCV GT1b infection enrolled in 11 phase II/III clinical trials. All participants received elbasvir 50 mg plus grazoprevir 100 mg once daily for 12 weeks. The primary end point of all studies was sustained virologic response 12 weeks after completion of therapy (SVR12, HCV RNA < 15 IU/ml). RESULTS: SVR12 was 97.2% (1040/1070). Of the 30 participants who failed to attain SVR12, 15 relapsed and 15 had nonvirologic failure. Among participant subgroups, SVR12 was high in those with compensated cirrhosis (188/189, 99.5%), HIV co-infection (51/54, 94.4%), and baseline viral load > 800,000 IU/ml (705/728, 96.8%). Resistance-associated substitutions (RASs) at NS5A positions 28, 30, 31, or 93 were present in 21.6% of participants at baseline. SVR12 was 99.6% (820/823) in participants without baseline NS5A RASs and 94.7% (215/227) in those with baseline NS5A RASs. Serious adverse events occurred in 3.2% (34/1070) of participants, nine of which occurred after study medication was completed. CONCLUSIONS: Elbasvir/grazoprevir for 12 weeks represents an effective treatment option for participants with HCV GT1b infection. SVR12 was high in all participant subgroups, including those with compensated cirrhosis, HIV co-infection, and high baseline viral load. CLINICALTRIALS. GOV IDENTIFIERS: The trials discussed in this paper were registered with Clinicaltrial.gov as the following: NCT02092350 (C-SURFER), NCT02105662 (C-EDGE Co-Infection), NCT02105467 (C-EDGE treatment-naive), NCT02105701 (C-EDGE treatment-experienced), NCT01717326 (C-WORTHy), NCT02251990 (C-CORAL), NCT02105688 (C-EDGE COSTAR), NCT02252016 (C-EDGE IBLD), NCT02115321 (C SALT), NCT02203149 (Japan phase 2/3 study), NCT02358044 (C-EDGE Head-2-Head). PMID- 29344728 TI - [Cutaneous graft-versus-host disease]. AB - BACKGROUND: Graft-versus-host disease (GvHD) is a complex multiorgan disease, which can occur as a complication following allogeneic stem cell transplantation. Involvement of the skin represents the most common appearance of GvHD. The role of the dermatologist is critical for diagnosis and initiation of treatment. OBJECTIVES: The aim of this article is to provide a comprehensive review of the cutaneous types of GvHD and to present the most recent data on diverse therapy options for its acute and chronic form allowing the clinician to establish a definite diagnosis and to initiate proper therapy. MATERIALS AND METHODS: Possible clinical appearances and recommended criteria to assist in making the right diagnosis are presented by means of expert recommendations. RESULTS AND CONCLUSION: GvHD is still a complex entity whose diagnosis is often associated with challenges due to its variable presentation. Proper diagnosis and subsequent therapy is paramount for the optimal clinical outcome. PMID- 29344727 TI - Work-related stress as a cardiovascular risk factor in police officers: a systematic review of evidence. AB - PURPOSE: Several studies suggest that work-related stress in police officers may be associated with an increased risk of cardiovascular diseases. A systematic review of studies is, however, still lacking. METHOD: According to PRISMA statement, a systematic search of PubMed, ISI Web of Science, Cinahl and PsychInfo electronic databases was undertaken. Studies published in English between 1/1/2000 and 31/12/2016 were included. A studies quality assessment was performed using the Newcastle Ottawa scale (NOS). RESULTS: The preliminary search retrieved 752 records. After selection, 16 studies (total population 17,698) were retrieved. The average quality of studies was low. Exposure to stress in cross sectional studies was inconstantly associated with hypertension, obesity, dyslipidaemia, and impaired glucose metabolism. In addition, there was a prevalence of positive studies showing an association between stress and cardiovascular disease morbidity. Studies of higher quality, such as longitudinal studies on large sample size, were more supportive of a significant positive association between stress and cardiovascular risk factors. Results were, however, often conflicting and inconsistent with regard to definitions and measurement of stress, features of individual study design, study conduct, and conclusions drawn. CONCLUSIONS: A sound precautionary principle would be to adopt worksite health promotion programs designed to implement stress management strategies in this category of workers. PMID- 29344730 TI - Skeletal dissemination in Paget's disease of the spine. AB - PURPOSE: Paget's disease of bone (PDB) is a common skeletal disorder that is associated with locally increased bone turnover, skeletal deformity and pain. We report a case of skeletal dissemination in PDB of the spine. METHODS: Case report. RESULTS: A 46-year-old former professional athlete suffered from disseminated PDB throughout the spine and hips after various surgical interventions including spondylodesis, bone grafting and bone morphogenetic protein (rhBMP-2) administration. Only intravenous zoledronic acid prevented the further progression of skeletal dissemination, which was expressed by a normalization of (bone-specific) alkaline phosphatase levels. The biopsy obtained from the lumbar spine confirmed the diagnosis of PDB in the absence of malignant transformation. CONCLUSIONS: We outline skeletal dissemination as a possibly surgery-related complication in a patient with PDB in the lumbar spine. Bisphosphonates remain the treatment of first choice in PDB and surgical interventions should be considered very carefully. PMID- 29344729 TI - Sodium bicarbonate supplementation improves severe-intensity intermittent exercise under moderate acute hypoxic conditions. AB - Acute moderate hypoxic exposure can substantially impair exercise performance, which occurs with a concurrent exacerbated rise in hydrogen cation (H+) production. The purpose of this study was therefore, to alleviate this acidic stress through sodium bicarbonate (NaHCO3) supplementation and determine the corresponding effects on severe-intensity intermittent exercise performance. Eleven recreationally active individuals participated in this randomised, double blind, crossover study performed under acute normobaric hypoxic conditions (FiO2% = 14.5%). Pre-experimental trials involved the determination of time to attain peak bicarbonate anion concentrations ([HCO3-]) following NaHCO3 ingestion. The intermittent exercise tests involved repeated 60-s work in their severe-intensity domain and 30-s recovery at 20 W to exhaustion. Participants ingested either 0.3 g kg bm-1 of NaHCO3 or a matched placebo of 0.21 g kg bm-1 of sodium chloride prior to exercise. Exercise tolerance (+ 110.9 +/- 100.6 s; 95% CI 43.3-178 s; g = 1.0) and work performed in the severe-intensity domain (+ 5.8 +/- 6.6 kJ; 95% CI 1.3-9.9 kJ; g = 0.8) were enhanced with NaHCO3 supplementation. Furthermore, a larger post-exercise blood lactate concentration was reported in the experimental group (+ 4 +/- 2.4 mmol l-1; 95% CI 2.2-5.9; g = 1.8), while blood [HCO3-] and pH remained elevated in the NaHCO3 condition throughout experimentation. In conclusion, this study reported a positive effect of NaHCO3 under acute moderate hypoxic conditions during intermittent exercise and therefore, may offer an ergogenic strategy to mitigate hypoxic induced declines in exercise performance. PMID- 29344731 TI - The impact of surgeon volume on patient outcome in spine surgery: a systematic review. AB - PURPOSE: Recently, strategies aimed at optimizing provider factors have been proposed, including regionalization of surgeries to higher volume centers and adoption of volume standards. With limited literature promoting the regionalization of spine surgeries, we undertook a systematic review to investigate the impact of surgeon volume on outcomes in patients undergoing spine surgery. METHODS: We performed a systematic review examining the association between surgeon volume and spine surgery outcomes. To be included in the review, the study population had to include patients undergoing a primary or revision spinal procedure. These included anterior cervical discectomy and fusion (ACDF), anterior/posterior cervical fusion, laminectomy/decompression, anterior/posterior lumbar decompression with fusion, discectomy, and spinal deformity surgery (spine arthrodesis). RESULTS: Studies were variable in defining surgeon volume thresholds. Higher surgeon volume was associated with a significantly lower risk of postoperative complications, a lower length of stay (LOS), lower cost of hospital stay and a lower risk of readmissions and reoperations/revisions. CONCLUSIONS: Findings suggest a trend towards better outcomes for higher volume surgeons; however, further study needs to be carried out to define objective volume thresholds for individual spine surgeries for surgeons to use as a marker of proficiency. PMID- 29344732 TI - Recognition of the importance of geogenic sources in the content of metals in PM2.5 collected in the Mexico City Metropolitan Area. AB - The study of airborne metals in urban areas is relevant due to their toxic effects on human health and organisms. In this study, we analyzed metals including rare earth elements (REE) in particles smaller than 2.5 MUm (PM2.5), collected at five sites around the Mexico City Metropolitan Area (MCMA), during three periods in 2011: April (dry-warm season, DW), August (rainy season, R), and November (dry-cold season, DC). Principal component analysis allowed identifying factors related to geogenic sources and factors related to anthropogenic sources. The recognition of the high impact of geogenic sources in PM2.5 is in agreement with the REE distribution patterns, which show similar behavior as those shown by igneous rocks, confirming the influence of the regional geogenic material. Metals associated to geogenic sources showed higher concentration (p < 0.05) at NE of the MCMA and a significant correlation with prevalent winds. Geogenic metals show similar seasonal distribution, with the highest concentration during DW (p < 0.05), suggesting a possible metal resuspension effect which affects more significantly at lower relative humidity (RH). The metals associated with anthropogenic sources are in agreement with the urban complexity of the area, showing homogenous distribution throughout MCMA (p > 0.05) and no similar seasonal pattern among them. These unexpected results exposed outstanding information regarding the identification of different geogenic sources as the main contributors of metals in the atmospheric environment in the MCMA and highlighted the importance of meteorology in the spatial and seasonal metal patterns. PMID- 29344733 TI - Linking intraspecific trait variability and spatial patterns of subtropical trees. AB - The importance of intraspecific trait variability (ITV) to the spatial distribution of individual species is unclear. We hypothesized that intraspecific trait dispersions underlying niche processes deviate more from null model expectations, by reducing their spread (range and variance), kurtosis, and standard deviation of near-neighbor distance, for species with aggregated than those with random distributions. The link between species' spatial distributions and ITV patterns was examined using an individual tree-based trait data set, in which specific leaf area, mean leaf area, leaf dry matter content, and diameter at breast height were measured for 18,773 stems of 45 species in a 4.84 ha mapped subtropical forest plot in China. The nearest-neighbor distance analysis showed that, of 45 species, 14 species were distributed in random and 31 species were distributed in aggregation, while no species was distributed in uniform in the plot. The dispersions of all studied traits in species with an aggregated distribution on average deviated more strongly from the null expectation than those in species with a random distribution and that the extent of deviation was negatively associated with the degree of spatial randomness across species. Our results indicate that niche processes are primarily responsible for the spatial structure of species with aggregated distributions, while stochastic processes drive those with random distributions. Our results highlight the fundamental role of ITV in shaping spatial patterns of co-existing species. PMID- 29344734 TI - The level and extent of upper airway obstruction affects the severity of laryngopharyngeal reflux. PMID- 29344735 TI - Hydrochemistry and water quality of Rewalsar Lake of Lesser Himalaya, Himachal Pradesh, India. AB - The present research is to study hydrochemistry and water quality of Rewalsar Lake during pre-monsoon, monsoon, and post-monsoon seasons. The Ca2+ and Na+ are observed as the dominant cations from pre- to post-monsoon season. On the other hand, HCO3- and Cl- are observed dominant anions during pre-monsoon and monsoon seasons, whereas HCO3- and SO42- during post-monsoon season. The comparison of alkaline earth metals with alkali metals and total cations (Tz+) has specified that the carbonate weathering is the dominant source of major ions in the water of lake. The HCO3- is noticed to be mainly originated from carbonate/calcareous minerals during monsoon and post-monsoon, but through silicate minerals during pre-monsoon. The SO42- in Rewalsar Lake is produced by the dissolution of calcite and dolomite etc. The alkali metals and Cl- in the lake can be attributed to the silicate weathering as well as halite dissolution and anthropogenic activities. Certain other parameters like NO3-, NH4+, F-, and Br- are mainly a result of anthropogenic activities. The alkaline earth metals are found to surpass over alkali metals, whereas weak acid (HCO3-) exceed to strong acid (SO42 ). The Piper diagram has shown Ca2+-HCO3- type of water during all the seasons. The water quality index has indicated that the water quality of the lake is unsuitable for drinking from pre- to post-monsoon. Several parameters like salinity index, sodium adsorption ratio, sodium percent, residual sodium carbonate, magnesium hazard etc. have revealed the water of Rewalsar Lake as suitable for irrigation. PMID- 29344736 TI - Predictors of analgesic efficacy of neurolytic celiac plexus block in patients with unresectable pancreatic cancer: the importance of timing. AB - BACKGROUND: Neurolytic celiac plexus block (NCPB) is a safe and effective method for reducing abdominal cancer pain. However, the analgesic efficacy of NCPB is not always guaranteed. The aim of this retrospective study was to identify predictors for the analgesic efficacy of NCPB in patients with unresectable pancreatic cancer. METHODS: Patients with unresectable pancreatic cancer who underwent NCPB from 2006 to 2015 were enrolled. Good analgesia after NCPB was defined as >= 50% reduction in pain score at day 30. Patient demographics, cancer characteristics, and pain-related factors were evaluated using a logistic regression analysis to identify predictors for good analgesia after NCPB. Additionally, survival outcomes were compared between patients with poor and good analgesia after NCPB. RESULTS: A total of 112 patients satisfied the study protocol requirements. Forty-seven patients (41.9%) showed good analgesia after NCPB. Better performance status, lower serum CA 19-9 level, shorter pain duration, and lower opioid dose were observed in patients with good analgesia after NCPB. Good performance status (ECOG performance status 1 vs. 2 or 3, OR = 2.737, 95% CI = 1.149 to 6.518, P = 0.023) and low daily opioid use (< 150 vs. >= 150 mg, OR = 2.813, 95% CI = 1.159 to 6.831, P = 0.022) before NCPB were independent predictors of good analgesia after NCPB. The median survival was significantly lower for patients with poor analgesia after NCPB (68 vs. 150 days, P < 0.001). CONCLUSION: NCPB should be offered early to selected patients to improve its analgesic efficacy in advance of deterioration from disease and pain in this population. PMID- 29344737 TI - The 125th anniversary of the His bundle discovery. AB - In 1893, Wilhelm His Jr. was the first to describe the AV (atrioventricular) bundle of the vertebrate heart, which now bears his name. Moreover, prior to the turn of the century, W. His Jr. had proved the function of the AV bundle by transection experiments in animals, and had interpreted Adams Stokes disease as heart block due to pathological changes within the bundle. In this way, he was ahead of his time. While clinical interest was limited to the bundle as the location of an AV block in the first half of the 125 years, it has gained attractiveness since then as a target of diagnostic and therapeutic procedures. The introduction of His bundle electrography relaunched the interest in cardiac arrhythmias. Once the AV bundle could be localized clinically, its ablation, and in recent times its permanent stimulation, became options in the therapy of well defined arrhythmia and conduction problems. PMID- 29344738 TI - Genetic and functional analysis of the RYR1 mutation p.Thr84Met revealed a susceptibility to malignant hyperthermia. AB - PURPOSE: The aim of this study was to analyze the genetic and functional role of a novel RYR1 variant c.251 C > T (p.Thr84Met) identified in a patient with muscle weakness demonstrating MH susceptibility. METHODS: DNA testing of family members was conducted for assessment of pathogenicity of the genetic variant. For functional analysis, Ca2+ measurement using patient-derived myotubes and p.Thr84Met RYR1-transfected human embryonic kidney (HEK)-293 cells was performed to evaluate reactivity to RYR1 activators. The half-maximal effective concentration (EC50) values of two RYR1 activators, caffeine and 4-chloro-m cresol (4CmC), were calculated from the acquired dose-response curves. The EC50 was compared between two groups: for myotubes, the control group and the patient, and for HEK-293 cells, WT and p.Thr84Met. RESULTS: Dose-response curves for caffeine and 4CmC were shifted to the left in both myotubes and HEK-293 cells compared to controls. The 50% effective concentration values for caffeine and 4CmC were significantly lower in both myotubes and HEK-293 cells compared to controls (P < 0.001 for all comparisons). CONCLUSIONS: Our results of functional testing indicated RYR1 hypersensitivity to caffeine and 4CmC. We conclude that the genetic variant was associated with MH susceptibility. PMID- 29344739 TI - What We Have Learned from the Recent Meta-analyses on Diagnostic Methods for Atherosclerotic Plaque Regression. AB - PURPOSE OF REVIEW: Atherosclerosis has major morbidity and mortality implications globally. While it has often been considered an irreversible degenerative process, recent evidence provides compelling proof that atherosclerosis can be reversed. Plaque regression is however difficult to appraise and quantify, with competing diagnostic methods available. Given the potential of evidence synthesis to provide clinical guidance, we aimed to review recent meta-analyses on diagnostic methods for atherosclerotic plaque regression. RECENT FINDINGS: We identified 8 meta-analyses published between 2015 and 2017, including 79 studies and 14,442 patients, followed for a median of 12 months. They reported on atherosclerotic plaque regression appraised with carotid duplex ultrasound, coronary computed tomography, carotid magnetic resonance, coronary intravascular ultrasound, and coronary optical coherence tomography. Overall, all meta-analyses showed significant atherosclerotic plaque regression with lipid-lowering therapy, with the most notable effects on echogenicity, lipid-rich necrotic core volume, wall/plaque volume, dense calcium volume, and fibrous cap thickness. Significant interactions were found with concomitant changes in low density lipoprotein cholesterol, high density lipoprotein cholesterol, and C-reactive protein levels, and with ethnicity. Atherosclerotic plaque regression and conversion to a stable phenotype is possible with intensive medical therapy and can be demonstrated in patients using a variety of non-invasive and invasive imaging modalities. PMID- 29344740 TI - Trends in Awareness and Use of HIV PrEP Among Gay, Bisexual, and Other Men who have Sex with Men in Vancouver, Canada 2012-2016. AB - Gay, bisexual, and other men who have sex with men (gbMSM) are at the highest risk for HIV infection in British Columbia (BC). Pre-exposure prophylaxis (PrEP) has been recently licensed but is currently not publicly funded in BC. Using respondent-driven sampling, we recruited a cohort of gbMSM to complete a computer assisted self-interview with follow-up every 6 months. Stratified by HIV status, we examined trends in awareness of PrEP from 11/2012 to 02/2016 and factors associated with PrEP awareness. 732 participants responded to the PrEP awareness question. Awareness of PrEP among HIV-negative men increased from 18 to 80% (p < 0.0001 for trend); among HIV-positive men, awareness increased from 36 to 77% (p < 0.0001). PrEP awareness was associated with factors related to HIV risk including sero-adaptive strategies and sexual sensation seeking. Eight HIV negative men reported using PrEP. Low PrEP uptake highlights that PrEP access should be expanded for at-risk gbMSM in BC. PMID- 29344741 TI - Assessment of potential risk factors for breast cancer in a population in Southern Brazil. AB - PURPOSE: The aim of this study is to assess potential risk factors for breast cancer in a population in Southern Brazil and build a multivariate logistic model using these factors for breast cancer risk prediction. METHODS: A total of 4242 women between 40 and 69 years of age without a history of breast cancer were selected at primary healthcare facilities in Porto Alegre and submitted to mammographic screening. They were evaluated for potential risk factors. RESULTS: In all, 73 participants among the 4242 women had a breast cancer diagnosis during the follow-up of the project (10 years). The multivariate analysis considering all the patients aged 40-69 years showed that older age (OR 1.08, 95% CI 1.04 1.12), higher height (OR 1.04, 95% CI 1.01-1.09), and history of previous breast biopsy (OR 2.66, 95% CI 1.38-5.13) were associated with the development of breast cancer. Conversely, the number of pregnancies (OR 0.87, 95% CI 0.78-0.98) and use of hormone replacement therapy (OR 0.39, 95% CI 0.20-0.75) were considered a protective factor. Additionally, we performed an analysis separating the participants into groups of 40-49 and 50-69 years old, since a risk factor could have a specific behavior in these age groups. No additional risk factors were identified within these age brackets, and some factors lost statistical significance. CONCLUSION: The risk prediction model indicates that the following variables should be assessed in this specific population: age, height, having had previous breast biopsies, number of pregnancies, and use of hormone replacement therapy. These findings may help to better understand the causal model of breast cancer in Southern Brazil. PMID- 29344742 TI - Increased Curie Temperature Induced by Orbital Ordering in La0.67Sr0.33MnO3/BaTiO3 Superlattices. AB - Recent theoretical studies indicated that the Curie temperature of perovskite manganite thin films can be increased by more than an order of magnitude by applying appropriate interfacial strain to control orbital ordering. In this work, we demonstrate that the regular intercalation of BaTiO3 layers between La0.67Sr0.33MnO3 layers effectively enhances ferromagnetic order and increases the Curie temperature of La0.67Sr0.33MnO3/BaTiO3 superlattices. The preferential orbital occupancy of eg(x 2 -y 2 ) in La0.67Sr0.33MnO3 layers induced by the tensile strain of BaTiO3 layers is identified by X-ray linear dichroism measurements. Our results reveal that controlling orbital ordering can effectively improve the Curie temperature of La0.67Sr0.33MnO3 films and that in plane orbital occupancy is beneficial to the double exchange ferromagnetic coupling of thin-film samples. These findings create new opportunities for the design and control of magnetism in artificial structures and pave the way to a variety of novel magnetoelectronic applications that operate far above room temperature. PMID- 29344743 TI - Response to different furosemide doses predicts AKI progression in ICU patients with elevated plasma NGAL levels. AB - BACKGROUND: Furosemide responsiveness (FR) is determined by urine output after furosemide administration and has recently been evaluated as a furosemide stress test (FST) for predicting severe acute kidney injury (AKI) progression. Although a standardized furosemide dose is required for FST, variable dosing is typically employed based on illness severity, including renal dysfunction in the clinical setting. This study aimed to evaluate whether FR with different furosemide doses can predict AKI progression. We further evaluated the combination of an AKI biomarker, plasma neutrophil gelatinase-associated lipocalin (NGAL), and FR for predicting AKI progression. RESULTS: We retrospectively analyzed 95 patients who were treated with bolus furosemide in our medical-surgical intensive care unit. Patients who had already developed AKI stage 3 were excluded. A total of 18 patients developed AKI stage 3 within 1 week. Receiver operating curve analysis revealed that the area under the curve (AUC) values of FR and plasma NGAL were 0.87 (0.73-0.94) and 0.80 (0.67-0.88) for AKI progression, respectively. When plasma NGAL level was < 142 ng/mL, only one patient developed stage 3 AKI, indicating that plasma NGAL measurements were sufficient to predict AKI progression. We further evaluated the performance of FR in 51 patients with plasma NGAL levels > 142 ng/mL. FR was associated with AUC of 0.84 (0.67-0.94) for AKI progression in this population with high NGAL levels. CONCLUSIONS: Although different variable doses of furosemide were administered, FR revealed favorable efficacy for predicting AKI progression even in patients with high plasma NGAL levels. This suggests that a combination of FR and biomarkers can stratify the risk of AKI progression in a clinical setting. PMID- 29344744 TI - Interleukin-1 receptor antagonist inhibits angiogenesis in gastric cancer. AB - BACKGROUND: Interleukin-1 alpha (IL-1alpha) plays an important role in tumorigenesis and angiogenesis of gastric cancer. The interleukin-1 receptor antagonist (IL-1RA) inhibits IL-1 selectively and specifically through IL-1R type I (IL-1RI). However, the underlying mechanism by which IL-1RA modulates the interactions of tumor cells and their micro-environment is poorly understood. We have evaluated the role of IL-1RA in the metastatic process as well as the mutual or reciprocal actions between gastric cancer cells and stromal cells. MATERIALS AND METHODS: The expressions of IL-1alpha, vascular endothelial growth factor (VEGF), and IL-1RI mRNA were determined by reverse transcriptase-PCR. The regulatory effect of IL-1RA on the secretion of VEGF in human gastric cancer cells and human umbilical vein endothelial cells (HUVECs) was detected by enzyme linked immunosorbent assay. The effect of IL-1RA on metastatic potential was evaluated using proliferation, invasion, and angiogenesis assays, respectively, including in vitro co-culture system models consisting of tumor cells and stromal cells that were used to detect invasion and angiogenesis. RESULTS: Interleukin 1alpha mRNA was detected in the higher liver metastatic gastric cell line MKN45. IL-1alpha protein was expressed in MKN45 cells and in HUVECs. VEGF mRNA and protein were detected in the three gastric cancer cell lines (MKN4, NUGC-4, and AGS). Levels of VEGF secreted by gastric cancer cells and HUVECs appeared to be reduced through the action of IL-1RA via IL-1RI in a dose-dependent manner (P < 0.01). IL-1RA significantly inhibited the proliferation and migration of HUVECs (P < 0.01) and tube formation by HUVECs (P < 0.01), both in a dose-dependent manner. Compared with HUVECs grown without cancer cells (control) or with NUGC-4 cells, tube formation by HUVECs was significantly enhanced by co-culture with MKN45 cells (P < 0.01). The enhanced tube formation in the presence of MKN45 cells was inhibited by the addition of IL-1RA (P < 0.01). CONCLUSIONS: The IL-1RA downregulated the metastatic potential of gastric cancer through blockage of the IL-1alpha/VEGF signaling pathways. IL-1RA has the potential to play a role in the treatment of gastric cancer. PMID- 29344745 TI - Wet milling of large quantities of human excision adipose tissue for the isolation of stromal vascular fraction cells. AB - The isolation of stromal vascular fraction (SVF) cells from excised human adipose tissue, for clinical or research purposes, implies the tedious and time consuming process of manual mincing prior to enzymatic digestion. Since no efficient alternative technique to this current standard procedure has been proposed so far, the aim of this study was to test a milling procedure, using two simple, inexpensive and commercially available manual meat grinders, to process large amounts of adipose tissue. The procedure was assessed on adipose tissue resections from seven human donors and compared to manual mincing with scalpels. The processed adipose tissues were digested and the resulting SVF cells compared in terms of number, clonogenicity and differentiation capacity. After 10 min of processing, either device tested yielded on average sixfold more processed material for subsequent cell isolation than manual mincing. The isolation yield of SVF cells (isolated cells per ml of adipose tissue), their viability, phenotype, clonogenicity and osteogenic/adipogenic differentiation capacity, tested by production of mineralized matrix and lipid vacuoles, respectively, were comparable. This new method is practical and inexpensive and represents an efficient alternative to the current standard for large scale adipose tissue resection processing. A device based on the milling principle could be embedded within a streamlined system for isolation and clinical use of SVF cells from adipose tissue excision. PMID- 29344746 TI - Desvenlafaxine-Induced Interstitial Pneumonitis: A Case Report. AB - A 52-year-old man developed interstitial pneumonitis during treatment with desvenlafaxine for major depressive disorder. The man received desvenlafaxine at 50 mg for symptoms of depression 4 years earlier. Six months after a dose increase to 100 mg, he developed bronchitic symptoms with mild, persistent dyspnea. Investigations revealed a restrictive pattern on pulmonary function testing, bilateral upper lobe reticular opacities with traction bronchiectasis on radiology imaging, and end-stage interstitial fibrosis with honeycomb changes consistent with chronic hypersensitivity pneumonitis on open lung biopsy. He was diagnosed with drug-induced interstitial pneumonitis. Desvenlafaxine was discontinued and the patient received prednisone and mycophenolate mofetil. The patient had subsequent stability in the progression of his pulmonary disease after 1 month. After 1 year of drug discontinuation and treatment, his disease process remained, but without major progression. A Naranjo assessment score of 4 was obtained, indicating a possible relationship between the patient's adverse drug reaction and his use of the suspect drug. PMID- 29344747 TI - Healthcare-based on Cloud Electrocardiogram System: A Medical Center Experience in Middle Taiwan. AB - Electrocardiogram (ECG) as one of the best methods to measure irregular heartbeats is a dispensable method for doctor to diagnose Acute Myocardial Infarction (AMI) patients. Most medical centers in Taiwan implement the reduction of Door to Balloon (D2B) time, which is defined as the time interval starting when an Acute-Myocardial-Infarction patient arrives at the Emergency Department, and ending when a catheter guide wire crosses the culprit lesion as the acute myocardial-infarction treatment on the patient in the cardiac catheterization room. Generally, when a patient with acute-chest pain is sent into a hospital (always to Emergency Department), the hospital will collect his/her ECG which needs to be evaluated by a cardiologist to ensure that the patient really has Acute Myocardial Infarction. Then the medical workers deliver the patient to the cardiac catheterization room to operate balloon angioplasty. In previous years, the cardiologist must utilize a PC to connect to the Intranet of the hospital and employ a special PACS (Picture Archiving and Communication System) image browser before he/she can check the patient's ECG. But this will prolong the D2B time since the doctor may stay outdoors and he/she needs some time to find a PC and network. Of course, if the PC has not installed the PACS image browser, the doctor has to download and install it. Consequently, the D2B time should be worsened, thus possibly impacting the patient's life. Therefore, in this paper, we introduce a Cloud-based Electrocardiogram System, with which cardiologists can directly utilize their smart phones to browse the patient's ECG so as to shorten the D2B time. This system has been online in a medical center in middle Taiwan for more than one year. The shortened D2B time is longer than 10 min, i.e., receiving fine results. PMID- 29344748 TI - Lead sorption characteristics of various chicken bone part-derived chars. AB - Recycling food waste for beneficial use is becoming increasingly important in resource-limited economy. In this study, waste chicken bones of different parts from restaurant industry were pyrolyzed at 600 degrees C and evaluated for char physicochemical properties and Pb sorption characteristics. Lead adsorption isotherms by different chicken bone chars were carried out with initial Pb concentration range of 1-1000 mg L-1 at pH 5. The Pb adsorption data were better described by the Langmuir model (R2 = 0.9289-0.9937; ARE = 22.7-29.3%) than the Freundlich model (R2 = 0.8684-0.9544; ARE = 35.4-72.0%). Among the chars derived from different chicken bone parts, the tibia bone char exhibited the highest maximum Pb adsorption capacity of 263 mg g-1 followed by the pelvis (222 mg g-1), ribs (208 mg g-1), clavicle (179 mg g-1), vertebrae (159 mg g-1), and humerus (135 mg g-1). The Pb adsorption capacities were significantly and positively correlated with the surface area, phosphate release amount, and total phosphorus content of chicken bone chars (r >= 0.9711). On the other hand, approximately 75 88% of the adsorbed Pb on the chicken bone chars was desorbable with 0.1 M HCl, indicating their recyclability for reuse. Results demonstrated that chicken bone char could be used as an effective adsorbent for Pb removal in wastewater. PMID- 29344749 TI - Diagnosis of sleep apnea in patients with stable chronic heart failure using a portable sleep test diagnostic device. AB - PURPOSE: ApneaLink is a portable device for the screening of sleep apnea, a prevalent and underdiagnosed comorbidity in heart failure patients. A prospective cross-sectional study in patients with chronic heart failure was carried out to assess the sensitivity and specificity of apnea-hypopnea index (AHI) measurements using ApneaLink against the standard polysomnography test. METHODS: Adult patients with a prior hospitalization in an acute heart failure hospital unit were recruited for the study. All participants were tested for sleep apnea using ApneaLink and polysomnography simultaneously during an overnight stay at a sleep laboratory. Global sleep apnea was evaluated according to the AHI, which was analyzed and compared. Subpopulation comparison based on ejection fraction was not realized due to population size. RESULTS: Thirty-five patients with stable chronic heart failure completed the study (mean age 70.9 +/- 10.5 years and body mass index 30.0 +/- 4.7 kg/m2). Two patients were excluded due to insufficient study duration. ApneaLink had a sensitivity greater than 80% for all AHI measurements, and a specificity greater than 80% for all AHI measurements, except for AHI >= 5 events/h (61.5%). The results showed higher sensitivities and specificities at AHI values of >= 10 events/h (sensitivity 81.3% and specificity 84.2%) and >= 15 events/h (sensitivity 83.3% and specificity 91.3%). Correlation analysis showed that AHI measurements using ApneaLink and polysomnography had a strong and significant correlation (r = 0.794; P < 0.001). CONCLUSIONS: Our results suggest that ApneaLink could be used in clinical practice to identify heart failure patients with high (AHI >= 15 events/h) and low (AHI < 5 events/h) probability of having sleep apnea, sparing the need for a diagnostic polysomnography and thus potentially impacting prognosis by providing a more cost effective and timely diagnosis of this non-cardiac comorbidity. PMID- 29344751 TI - Associations Between Early Intervention Home Visits, Family Relationships and Competence for Mothers of Children with Developmental Disabilities. AB - Objectives To examine the association between intensity of home visits in early intervention (EI), perceived helpfulness of home visits in EI, and positive family relationships as predictors of maternal competence at age 3, as well as moderating effects of predictors, controlling for child characteristics, family demographics, and negative life events. Methods Data were drawn from the Early Intervention Collaborative Study (EICS), a 24-year longitudinal investigation of approximately 190 families of children with developmental disabilities who participated in EI programs in Massachusetts and New Hampshire. The primary analytic strategy was multivariable regression modeling. Each independent predictor was tested individually and then all together to build the final model. Interactions between independent predictors were also examined. Results After controlling for child and family characteristics and negative life events, the intensity of home visits was not significantly associated with maternal competence at age 3. However, the helpfulness of home visits (beta = 2.94, S.E. = 1.12, p < .01) and positive family relationships (beta = 5.11, S.E. = 1.08, p < .001) were associated with higher maternal competence when the child was 3 years old. Conclusions for Practice Recommendations for programs and policy include collecting life course data on families, particularly on their family relationships and experiences in EI and home visiting, assessing family relationships at the beginning of EI using a strengths-based perspective, and closely monitoring the quality of services. PMID- 29344750 TI - Physical Activity and Consumption Patterns of Reproductive-Aged Women by BMI Category. AB - Objectives Obesity before and during pregnancy is associated with adverse effects for mother and child, but little is known about physical activity and consumption patterns among reproductive-aged women. The goal of this study is to identify behaviors of nonpregnant reproductive-aged women associated with normal weight, overweight, and obesity. Methods Data from the nationally representative National Eating Trends survey (2003-2011) were analyzed, comparing number of days of exercise in a 1-week period and consumption of fruits/vegetables, sugar sweetened beverages (SSB), and concentrated sweets by BMI. Behaviors were compared using analysis of variance and Chi square test across groups. Ordinal logistic regression was used to compare behaviors across groups controlling for demographic factors. Multivariable Poisson regression was used to identify demographic factors associated with behaviors among obese women. Results Among 5941 18-45-year-old women, exercise and fruit/vegetable consumption were associated with healthy weight controlling for demographic factors. Reporting any exercise or fruit/vegetable consumption was associated with decreased odds of overweight or obesity (aOR 0.73, 95% CI 0.64-0.83 and aOR 0.74, 95% CI 0.58-0.95, respectively). Consuming SSBs was associated with increasing BMI category while consuming concentrated sweets was unexpectedly associated with normal weight. Among obese women, being on any diet was associated with increased exercise frequency and fruit/vegetable consumption and decreased SSB consumption. Conclusions for Practice Physical activity and consumption behaviors are associated with weight among reproductive-aged women in ways similar to those in the general population. Promoting exercise and fruit/vegetable consumption has the potential to reduce obesity. PMID- 29344752 TI - Transforming Dermatologic Imaging for the Digital Era: Metadata and Standards. AB - Imaging is increasingly being used in dermatology for documentation, diagnosis, and management of cutaneous disease. The lack of standards for dermatologic imaging is an impediment to clinical uptake. Standardization can occur in image acquisition, terminology, interoperability, and metadata. This paper presents the International Skin Imaging Collaboration position on standardization of metadata for dermatologic imaging. Metadata is essential to ensure that dermatologic images are properly managed and interpreted. There are two standards-based approaches to recording and storing metadata in dermatologic imaging. The first uses standard consumer image file formats, and the second is the file format and metadata model developed for the Digital Imaging and Communication in Medicine (DICOM) standard. DICOM would appear to provide an advantage over using consumer image file formats for metadata as it includes all the patient, study, and technical metadata necessary to use images clinically. Whereas, consumer image file formats only include technical metadata and need to be used in conjunction with another actor-for example, an electronic medical record-to supply the patient and study metadata. The use of DICOM may have some ancillary benefits in dermatologic imaging including leveraging DICOM network and workflow services, interoperability of images and metadata, leveraging existing enterprise imaging infrastructure, greater patient safety, and better compliance to legislative requirements for image retention. PMID- 29344753 TI - Comparative Approach of MRI-Based Brain Tumor Segmentation and Classification Using Genetic Algorithm. AB - The detection of a brain tumor and its classification from modern imaging modalities is a primary concern, but a time-consuming and tedious work was performed by radiologists or clinical supervisors. The accuracy of detection and classification of tumor stages performed by radiologists is depended on their experience only, so the computer-aided technology is very important to aid with the diagnosis accuracy. In this study, to improve the performance of tumor detection, we investigated comparative approach of different segmentation techniques and selected the best one by comparing their segmentation score. Further, to improve the classification accuracy, the genetic algorithm is employed for the automatic classification of tumor stage. The decision of classification stage is supported by extracting relevant features and area calculation. The experimental results of proposed technique are evaluated and validated for performance and quality analysis on magnetic resonance brain images, based on segmentation score, accuracy, sensitivity, specificity, and dice similarity index coefficient. The experimental results achieved 92.03% accuracy, 91.42% specificity, 92.36% sensitivity, and an average segmentation score between 0.82 and 0.93 demonstrating the effectiveness of the proposed technique for identifying normal and abnormal tissues from brain MR images. The experimental results also obtained an average of 93.79% dice similarity index coefficient, which indicates better overlap between the automated extracted tumor regions with manually extracted tumor region by radiologists. PMID- 29344754 TI - Green and Sustainable Separation of Natural Products from Agro-Industrial Waste: Challenges, Potentialities, and Perspectives on Emerging Approaches. AB - New generations of biorefinery combine innovative biomass waste resources from different origins, chemical extraction and/or synthesis of biomaterials, biofuels, and bioenergy via green and sustainable processes. From the very beginning, identifying and evaluating all potentially high value-added chemicals that could be removed from available renewable feedstocks requires robust, efficient, selective, reproducible, and benign analytical approaches. With this in mind, green and sustainable separation of natural products from agro industrial waste is clearly attractive considering both socio-environmental and economic aspects. In this paper, the concepts of green and sustainable separation of natural products will be discussed, highlighting the main studies conducted on this topic over the last 10 years. The principal analytical techniques (such as solvent, microwave, ultrasound, and supercritical treatments), by-products (e.g., citrus, coffee, corn, and sugarcane waste) and target compounds (polyphenols, proteins, essential oils, etc.) will be presented, including the emerging green and sustainable separation approaches towards bioeconomy and circular economy contexts. PMID- 29344755 TI - Mathematical modelling of bone adaptation of the metacarpal subchondral bone in racehorses. AB - In Thoroughbred racehorses, fractures of the distal limb are commonly catastrophic. Most of these fractures occur due to the accumulation of fatigue damage from repetitive loading, as evidenced by microdamage at the predilection sites for fracture. Adaptation of the bone in response to training loads is important for fatigue resistance. In order to better understand the mechanism of subchondral bone adaptation to its loading environment, we utilised a square root function defining the relationship between bone volume fraction [Formula: see text] and specific surface [Formula: see text] of the subchondral bone of the lateral condyles of the third metacarpal bone (MCIII) of the racehorse, and using this equation, developed a mathematical model of subchondral bone that adapts to loading conditions observed in vivo. The model is expressed as an ordinary differential equation incorporating a formation rate that is dependent on strain energy density. The loading conditions applied to a selected subchondral region, i.e. volume of interest, were estimated based on joint contact forces sustained by racehorses in training. For each of the initial conditions of [Formula: see text] we found no difference between subsequent homoeostatic [Formula: see text] at any given loading condition, but the time to reach equilibrium differed by initial [Formula: see text] and loading condition. We found that the observed values for [Formula: see text] from the mathematical model output were a good approximation to the existing data for racehorses in training or at rest. This model provides the basis for understanding the effect of changes to training strategies that may reduce the risk of racehorse injury. PMID- 29344757 TI - Should we stop anti-thrombotic agents prior to vitrectomy? PMID- 29344756 TI - The Current State of Left Main Percutaneous Coronary Intervention. AB - PURPOSE OF REVIEW: While coronary artery bypass grafting (CABG) remains the standard of care, advances in stenting technology and procedural technique are changing the role of percutaneous coronary intervention (PCI) in the treatment of severe left main coronary artery (LMCA) disease. We review contemporary evidence comparing PCI and CABG for the treatment of severe LMCA disease, discuss optimal techniques during left main PCI, and provide guidance on studied revascularization strategies within specific patient subgroups. RECENT FINDINGS: Results from randomized control trials of patients treated with PCI or CABG for severe LMCA disease demonstrate comparable short- and mid-term rates of death, myocardial infarction (MI), and stroke, but increased rates of repeat or target vessel revascularization after PCI. Though extended follow-up data has suggested lower long-term rates of MI and stroke in patients with severe LMCA disease treated with CABG, results from patients undergoing PCI with second-generation drug-eluting stents (DES) demonstrate non-inferiority in these outcomes. These findings are generalizable to patients with severe LMCA disease having low to intermediate anatomic complexity. Intravascular ultrasound and double kissing (DK) crush stenting also reduce adverse event rates among patients undergoing left main PCI and improve long-term outcomes. In patients with severe LMCA disease having low to intermediate anatomic complexity, both CABG and PCI with second-generation DES are effective methods of revascularization with comparable long-term rates of death, MI, and stroke. The roles of multi-vessel coronary artery disease and anatomic complexity on long-term outcomes after CABG or PCI for severe LMCA disease remain under investigation. PMID- 29344758 TI - Temperature Dependence of Raman-Active In-Plane E2g Phonons in Layered Graphene and h-BN Flakes. AB - Thermal properties of sp2 systems such as graphene and hexagonal boron nitride (h BN) have attracted significant attention because of both systems being excellent thermal conductors. This research reports micro-Raman measurements on the in plane E2g optical phonon peaks (~ 1580 cm-1 in graphene layers and ~ 1362 cm-1 in h-BN layers) as a function of temperature from - 194 to 200 degrees C. The h-BN flakes show higher sensitivity to temperature-dependent frequency shifts and broadenings than graphene flakes. Moreover, the thermal effect in the c direction on phonon frequency in h-BN layers is more sensitive than that in graphene layers but on phonon broadening in h-BN layers is similar as that in graphene layers. These results are very useful to understand the thermal properties and related physical mechanisms in h-BN and graphene flakes for applications of thermal devices. PMID- 29344759 TI - Mathematical Model of Contractile Ring-Driven Cytokinesis in a Three-Dimensional Domain. AB - In this paper, a mathematical model of contractile ring-driven cytokinesis is presented by using both phase-field and immersed-boundary methods in a three dimensional domain. It is one of the powerful hypotheses that cytokinesis happens driven by the contractile ring; however, there are only few mathematical models following the hypothesis, to the author's knowledge. I consider a hybrid method to model the phenomenon. First, a cell membrane is represented by a zero-contour of a phase-field implicitly because of its topological change. Otherwise, immersed-boundary particles represent a contractile ring explicitly based on the author's previous work. Here, the multi-component (or vector-valued) phase-field equation is considered to avoid the emerging of each cell membrane right after their divisions. Using a convex splitting scheme, the governing equation of the phase-field method has unique solvability. The numerical convergence of contractile ring to cell membrane is proved. Several numerical simulations are performed to validate the proposed model. PMID- 29344760 TI - On the Shapley Value of Unrooted Phylogenetic Trees. AB - The Shapley value, a solution concept from cooperative game theory, has recently been considered for both unrooted and rooted phylogenetic trees. Here, we focus on the Shapley value of unrooted trees and first revisit the so-called split counts of a phylogenetic tree and the Shapley transformation matrix that allows for the calculation of the Shapley value from the edge lengths of a tree. We show that non-isomorphic trees may have permutation-equivalent Shapley transformation matrices and permutation-equivalent null spaces. This implies that estimating the split counts associated with a tree or the Shapley values of its leaves does not suffice to reconstruct the correct tree topology. We then turn to the use of the Shapley value as a prioritization criterion in biodiversity conservation and compare it to a greedy solution concept. Here, we show that for certain phylogenetic trees, the Shapley value may fail as a prioritization criterion, meaning that the diversity spanned by the top k species (ranked by their Shapley values) cannot approximate the total diversity of all n species. PMID- 29344761 TI - Construct Validity of the Autism Impact Measure (AIM). AB - The Autism Impact Measure (AIM) was designed to track incremental change in frequency and impact of core ASD symptoms. The current study examined the structural and convergent validity of the AIM in a large sample of children with ASD. The results of a series of exploratory and confirmatory factor analyses yielded a final model with five theoretically and empirically meaningful subdomains: Repetitive Behavior, Atypical Behavior, Communication, Social Reciprocity, and Peer Interaction. The final model showed very good fit both overall and for each of the five factors, indicating excellent structural validity. AIM subdomain scores were significantly correlated with measures of similar constructs across all five domains. The results provide further support for the psychometric properties of the AIM. PMID- 29344762 TI - Capsule commentary on James et al., Impact of a population health management intervention on disparities in cardiovascular disease control. PMID- 29344763 TI - Visual awareness negativity is an early neural correlate of awareness: A preregistered study with two Gabor sizes. AB - Electrophysiological recordings are commonly used to study the neural correlates of consciousness in humans. Previous research is inconsistent as to whether awareness can be indexed with visual awareness negativity (VAN) at about 200 ms or if it occurs later. The present study was preregistered with two main aims: First, to provide independent evidence for or against the presence of VAN, and second, to study whether stimulus size may account for the inconsistent findings. Subjects were shown low-contrast Gaussian filtered gratings (Gabor patches) in the four visual quadrants. Gabor size (large and small) was varied in different sessions and calibrated to each subject's threshold of visual awareness. Event related potentials were derived from trials in which subjects localized the Gabors correctly to capture the difference between trials in which they reported awareness versus no awareness. Bayesian analyses revealed very strong evidence for the presence of VAN for both Gabor sizes. However, there was no evidence for or against an effect of stimulus size. The present findings provide evidence for VAN as an early neural correlate of awareness. PMID- 29344765 TI - Parent-child separation: the relationship between separation and psychological adjustment among Chinese rural children. AB - PURPOSE: The current study aimed to explore the characteristics of psychological adjustment among Chinese left-behind children (LBC) in rural areas, and to examine the association between separation duration from parent/parents (SDP) and children's psychological adjustment and the extent to which personality mediates this hypothesized link. METHODS: We surveyed 534 rural children and adolescents aged 10-17 years at school (440 LBC and 94 non-LBC) in 2013, who were selected for participation using stratified cluster sampling from two counties in Chongqing, China. Measures used included socio-demographic variables, age at the commencement and end of the separation from parents, the revised Chinese Juvenile Eysenck Personality Questionnaire, and the Adolescent Psychological Adaptability Scale. RESULTS: Most children (82.4%) had experienced separation from parents. t test results showed a marginally significant difference (p = .08) in psychological adjustment between LBC (mean = 64.44, SD = 8.62) and non-LBC (mean = 66.16, SD = 9.26). LBC's mean SDP was 5.64 years (SD = 3.90). Correlation analysis showed that children's SDP was negatively associated with psychological adjustment. Structural equation modeling showed that neuroticism, but not extraversion or psychoticism, fully mediated the link between children's SDP and psychological adjustment. CONCLUSION: Personality (neuroticism) is one of the mediating pathways through which long-term SDP may predict poor psychological adjustment among children. Given the detrimental impact of long-term SDP, interventions should target the mediating pathway to buffer against the negative impact of parental separation on the affected rural children and to improve their mental health. PMID- 29344764 TI - O-GlcNAcylation: key regulator of glycolytic pathways. AB - Elevated O-GlcNAcylation is emerging as a general characteristic of most cancers. Although O-GlcNAcylation can regulate many cell biological pathways, recent evidence suggests that it is a key regulator of metabolic pathways including glycolysis in cancer cells. This review summarizes our current understanding of how O-GlcNAcylation regulates glycolytic pathways and contributes to alterations in cancer cell metabolism. PMID- 29344766 TI - Patient-reported symptoms before palliative radiotherapy predict survival differences. AB - BACKGROUND: Widely used prognostic scores, e. g., for brain or bone metastases, are based on disease- and patient-related factors such as extent of metastases, age and performance status, which were available in the databases used to develop the scores. Few groups were able to include patient-reported symptoms. In our department, all patients were assessed with the Edmonton Symptom Assessment System (ESAS, a one-sheet questionnaire addressing 11 major symptoms and wellbeing on a numeric scale of 0-10) at the time of treatment planning since 2012. Therefore, we analyzed the prognostic impact of baseline ESAS symptom severity. METHODS: Retrospective review of 102 patients treated with palliative radiotherapy (PRT) between 2012 and 2015. All ESAS items were dichotomized (below/above median). Uni- and multivariate analyses were performed to identify prognostic factors for survival. RESULTS: The most common tumor types were prostate, breast and non-small cell lung cancer, predominantly with distant metastases. Median survival was 6 months. Multivariate analysis resulted in six significant prognostic factors. These were ESAS pain while not moving (median 3), ESAS appetite (median 5), Eastern Cooperative Oncology Group (ECOG) performance status, pleural effusion/metastases, intravenous antibiotics at start or within 2 weeks before PRT and no systemic cancer treatment. CONCLUSIONS: Stronger pain while not moving and reduced appetite (below/above median) predicted significantly shorter survival. Development of new prognostic scores should include patient-reported symptoms and other innovative parameters because they were more important than primary tumor type, age and other traditional baseline parameters. PMID- 29344767 TI - Klotho attenuates isoproterenol-induced hypertrophic response in H9C2 cells by activating Na+/K+-ATPase and inhibiting the reverse mode of Na+/Ca2+-exchanger. AB - Cardiac hypertrophy plays a major role in heart failure and is related to patient morbidity and mortality. Calcium overloading is a main risk for cardiac hypertrophy, and Na+/K+-ATPase (NKA) has been found that it could not only regulate intracellular Na+ levels but also control the intracellular Ca2+ ([Ca2+]i) level through Na+/Ca2+-exchanger (NCX). Recent studies have reported that klotho could affect [Ca2+]i level. In this study, we aimed at exploring the role of klotho in improving isoproterenol-induced hypertrophic response of H9C2 cells. The H9C2 cells were randomly divided into control and isoproterenol (ISO) (10 MUM) groups. Klotho protein (10 MUg/ml) or NKAalpha2 siRNA was used to determine the changes in isoproterenol-induced hypertrophic response. The alterations of [Ca2+]i level were measured by spectrofluorometry. Our results showed that H9C2 cells which were treated with isoproterenol presented a higher level of [Ca2+]i and hypertrophic gene expression at 24 and 48 h compared with the control group. Moreover, the expressions of NKAalpha1 and NKAalpha2 were both increased in control and ISO groups after treating with klotho protein; meanwhile, the NKA activity was increased and NCX activity was decreased after treatment. Consistently, the [Ca2+]i level and hypertrophic gene expression were decreased in ISO group after klotho protein treatment. However, these effects were both prevented by transfecting with NKAalpha2 siRNA. In conclusion, these findings demonstrated that klotho inhibits isoproterenol-induced hypertrophic response in H9C2 cells by activating NKA and inhibiting the reverse mode of NCX and this effect may be associated with the upregulation of NKAalpha2 expression. PMID- 29344768 TI - Diagnosis and Treatment of Injuries to the Biceps and Superior Labral Complex in Overhead Athletes. AB - PURPOSE OF REVIEW: This review discusses the diagnostic and treatment challenges presented by injuries to the biceps and superior labral complex. RECENT FINDINGS: A focused patient history, numerous physical examination maneuvers, and appropriate advanced imaging studies must be utilized to reach an accurate diagnosis. Nonoperative management, even in overhead athletes, has demonstrated relatively good outcomes, while operative outcomes have yielded mixed results. The surgeon must take into account a number of variables when choosing the appropriate surgical procedure: labral repair versus biceps tenodesis. Rehabilitation, either as nonoperative management or as a postoperative protocol, should focus on restoring glenohumeral and scapulothoracic strength, endurance, and full, pain-free range of motion, while correcting any deficiencies in balance or rhythm throughout the overhead motion. Despite the operative treatment challenges that SLAP tears present, with new techniques and proper patient selection, overhead athletes with injuries to the biceps and superior labrum complex can return to sport at a high level. PMID- 29344770 TI - Sub-inner limiting membrane hemorrhage in a patient with Terson syndrome. AB - PURPOSE: To report a case of bilateral Terson Syndrome with sub inner limiting membrane hemorrhage associated with a rare finding: perimacular fold. METHODS: The patient, a 34 years old female with aneurysmal subarachnoid hemorrhage and bilateral Terson syndrome was admitted to the Ophthalmology department, complaining of blurred vision. Core vitrectomy, hyaloid detachment, peeling of the ILM and aspiration of the sub inner limiting membrane hemorrhage was performed. Once the inner limiting membrane of the left eye was peeled off, we noticed a particular aspect: the perimacular fold. RESULT: Although our patient suffered from a massive vitreous haemorrhage the postoperative outcome was favorable with a final best corrected visual acuity of 20/30. CONCLUSIONS: In patients with billateral Terson syndrome we recommend early surgery, especially if the neurological status allows it, a good visual acuity being helpful for the neurophysical rehabilitation of the patient. PMID- 29344769 TI - Sensitive Synchronous Spectrofluorimetric Study of Certain Sunscreens Using Fluorescence Enhancers in Cosmeceutical Formulations. AB - Synchronous spectrofluorimetric methods could be successfully adopted for simultaneous determination of Octinoxate (OMC), Avobenzone (AVO), Octyltriazone (OT), and Phenyl benzimidazole sulfonic acid (PBSA) in moisturizing sunscreen lotion, utilizing beta-CD as fluorescence enhancer, and determination of Avobenzone (AVO), Homosalate, Tinosorb M and Phenyl benzimidazole sulfonic acid (PBSA) in presence of Octocrylene (OCR) in whitening sunscreen cream, using micellar medium of Sodium Dodecyl Sulfate (SDS) to enhance fluorescence intensity. For first product, zero order synchronous spectrofluorimetric method was used for determination of OMC and AVO, and derivative synchronous spectrofluorimetric technique was utilized for OT and PBSA in quaternary mixture. Linear calibration curves were obtained in a concentration range of 0.5-8 MUg mL- 1 for OMC and AVO, and in range of 0.05-3 MUg mL- 1 for OT and 0.001-5 MUg mL- 1 for PBSA, by measuring the fluorescence at 370, 405, 333.2 and 340.6 nm, respectively. For second product, first derivative synchronous fluorescence method was used for each UV-filter. A linear calibration curves were obtained in a concentration range of 0.5-8 MUg mL- 1 for AVO, in range of 0.1-8 MUg mL- 1 for Homosalate, 2-10 MUg mL- 1 for Tinosorb M and 0.001-5 MUg mL- 1 for PBSA, by measuring the fluorescence at 409.8, 373, 307.2 and 316.8 nm, respectively. The detection limits are well below the maximum admissible concentration. The proposed methods were validated according to ICH guidelines and successfully applied to determine sunscreens in pure form and in Cosmeceutical formulations. All the results obtained were compared with those of published methods, where no significant difference was observed. PMID- 29344771 TI - Enhancing Capacity for Evidence-Based Policymaking: the Role of Economic Evaluation Standards. AB - This commentary will describe some ongoing activities that are moving the federal government toward stronger use of evidence in decision-making. In particular, the work of the Commission on Evidence-Based Policymaking points to directions that have implications for capacity building and the institutionalization of economic evaluation, as well as mechanisms and resources that could make economic evaluation more feasible. Bipartisan legislation incorporates many of the recommendations of the Commission and reinforces efforts already underway at individual agencies as well as among interagency groups. Understanding the current context of evidence-based policymaking in the federal government can enable economic researchers to better influence the processes of capacity building, shape the designs of evaluations, and inform decision-making. The commentary highlights areas where further elaboration of economic evaluation principles could be useful to support evidence building, implementation, and program improvement. PMID- 29344772 TI - Safety and efficacy of lamivudine or telbivudine started in early pregnancy for mothers with active chronic hepatitis B. AB - BACKGROUND: Few data exist regarding use of nucleos(t)ide analogs started in early pregnancy for mothers with active chronic hepatitis B (CHB). We assessed the safety and efficacy of lamivudine/telbivudine initiated in the first trimester versus no treatment in mothers with active CHB. METHODS: We retrospectively enrolled 94 mothers newly diagnosed with active CHB in the first trimester of pregnancy. Patients with or without antiviral therapy were followed until postpartum week 28. All newborns received immunoprophylaxis. The primary endpoint was the safety of mothers and infants. The secondary endpoints were hepatitis B virus (HBV) DNA suppression and mother-to-child transmission (MTCT) rate. RESULTS: Fifty-nine of the 94 mothers initiated lamivudine/telbivudine (27/32) in the first trimester of pregnancy; 35 received no treatment. At delivery, the viral load reduction was similar between lamivudine and telbivudine. Early initiation of lamivudine/telbivudine significantly increased the proportion of mothers achieving HBV DNA <106 copies/ml compared with those with no treatment (100 versus 42.42 %, p < 0.001). At postpartum week 28, the MTCT rate was significant lower in the treated group than in the control group (0/61 or 0 versus 4/34 or 11.76 %, p = 0.028). Lamivudine and telbivudine were well tolerated in the mothers except mild creatine kinase (CK) elevation. There existed no differences in gestational age, infant length and weight, Apgar score, adverse events, or birth defect rates between infants from treated and untreated mothers. CONCLUSIONS: Treatment with lamivudine or telbivudine for active CHB in early pregnancy appears to be safe and effective for controlling maternal disease as well as interrupting MTCT. PMID- 29344773 TI - Beyond Content: Cultural Perspectives on Using the Internet to Deliver a Sexual Health Intervention to American Indian Youth. AB - American Indian and Alaska Native (AIAN) youth are characterized by high rates of pregnancy and risky sexual behavior. Reaching these youth with culturally appropriate interventions is difficult due to geographic dispersion and cultural isolation. Online interventions can provide opportunities for reaching and engaging AIAN youth. However, electronic interventions are also impersonal and this can be culturally incongruous for AIANs and other populations for whom traditional ceremonies, practices and patterns of interpersonal communication are central. This paper describes the application of community based participatory research methods to: (1) identify concerns about the exclusive use of an online sexual health program; (2) address community concerns by developing supplemental class lessons, and (3) evaluate the feasibility and acceptability of the new hybrid intervention. Data derives from qualitative and quantitative sources. During the formative phase of the project, qualitative data from partner interactions was analyzed with participatory inquiry to inform intervention development. To evaluate the intervention, qualitative data (e.g., interviews, surveys) were used to understand and explain quantitative measures such as implementation fidelity and attendance. Implementers were enthusiastic about the hybrid intervention. The lessons were easy to teach and provided opportunities for meaningful discussions, adaptations, and community involvement. The use of online videos was an effective method for providing training. Working with community partners, we resolved cultural concerns arising from the exclusive use of the Internet by creating a hybrid intervention. The additional burden for staff to deliver the class lessons was considered minimal in comparison to the educational and programmatic benefits of the hybrid intervention. ClinicalTrials.gov identifier NCT01698073. PMID- 29344774 TI - Physiological mechanism of osmoregulatory adaptation in anguillid eels. AB - In recent years, the production of eel larvae has dramatic declines due to reductions in spawning stocks, overfishing, growth habitat destruction and access reductions, and pollution. Therefore, it is particularly important and urgent for artificial production of glass eels. However, the technique of artificial hatching and rearing larvae is still immature, which has long been regarded as an extremely difficult task. One of the huge gaps is artificial condition which is far from the natural condition to develop their capability of osmoregulation. Thus, understanding their osmoregulatory mechanisms will help to improve the breed and adapt to the changes in the environment. In this paper, we give a general review for a study progress of osmoregulatory mechanisms in eels from five aspects including tissues and organs, ion transporters, hormones, proteins, and high throughput sequencing methods. PMID- 29344775 TI - New saliva secretion model based on the expression of Na+-K+ pump and K+ channels in the apical membrane of parotid acinar cells. AB - The plasma membrane of parotid acinar cells is functionally divided into apical and basolateral regions. According to the current model, fluid secretion is driven by transepithelial ion gradient, which facilitates water movement by osmosis into the acinar lumen from the interstitium. The osmotic gradient is created by the apical Cl- efflux and the subsequent paracellular Na+ transport. In this model, the Na+-K+ pump is located exclusively in the basolateral membrane and has essential role in salivary secretion, since the driving force for Cl- transport via basolateral Na+-K+-2Cl- cotransport is generated by the Na+-K+ pump. In addition, the continuous electrochemical gradient for Cl- flow during acinar cell stimulation is maintained by the basolateral K+ efflux. However, using a combination of single-cell electrophysiology and Ca2+-imaging, we demonstrate that photolysis of Ca2+ close to the apical membrane of parotid acinar cells triggered significant K+ current, indicating that a substantial amount of K+ is secreted into the lumen during stimulation. Nevertheless, the K+ content of the primary saliva is relatively low, suggesting that K+ might be reabsorbed through the apical membrane. Therefore, we investigated the localization of Na+-K+ pumps in acinar cells. We show that the pumps appear evenly distributed throughout the whole plasma membrane, including the apical pole of the cell. Based on these results, a new mathematical model of salivary fluid secretion is presented, where the pump reabsorbs K+ from and secretes Na+ to the lumen, which can partially supplement the paracellular Na+ pathway. PMID- 29344776 TI - Dawning of a new era in TRP channel structural biology by cryo-electron microscopy. AB - Cryo-electron microscopy (cryo-EM) permits the determination of atomic protein structures by averaging large numbers of individual projection images recorded at cryogenic temperatures-a method termed single-particle analysis. The cryo preservation traps proteins within a thin glass-like ice layer, making literally a freeze image of proteins in solution. Projections of randomly adopted orientations are merged to reconstruct a 3D density map. While atomic resolution for highly symmetric viruses was achieved already in 2009, the development of new sensitive and fast electron detectors has enabled cryo-EM for smaller and asymmetrical proteins including fragile membrane proteins. As one of the most important structural biology methods at present, cryo-EM was awarded in October 2017 with the Nobel Prize in Chemistry. The molecular understanding of Transient Receptor-Potential (TRP) channels has been boosted tremendously by cryo-EM single particle analysis. Several near-atomic and atomic structures gave important mechanistic insights, e.g., into ion permeation and selectivity, gating, as well as into the activation of this enigmatic and medically important membrane protein family by various chemical and physical stimuli. Lastly, these structures have set the starting point for the rational design of TRP channel-targeted therapeutics to counteract life-threatening channelopathies. Here, we attempt a brief introduction to the method, review the latest advances in cryo-EM structure determination of TRP channels, and discuss molecular insights into the channel function based on the wealth of TRP channel cryo-EM structures. PMID- 29344779 TI - Trigeminal neuropathy in vestibular schwannoma: a treatment algorithm to avoid long-term morbidity. AB - BACKGROUND: Trigeminal neuropathy (TGN) can occur as a presenting feature of vestibular schwannoma (VS) or as an adverse effect of radiosurgery. This study was designed to evaluate a treatment algorithm for presenting symptoms of TGN in patients with VS, and a new radiosurgery dosimetric tolerance to avoid TGN after treatment. Outcome was measured after microsurgery (MS), stereotactic radiosurgery (SRS), hypofractionated stereotactic radiotherapy (HSRT), and fractionated radiotherapy (FRT). METHODS: A prospectively held VS database was retrospectively analysed from 2011 to 2016 at a tertiary university hospital. All patients who underwent MS from 2011 and all patients who underwent radiotherapy (SRS, HSRT, FRT) from 2015 were studied. Patients on surveillance and neurofibromatosis type 2 patients were not included. Patient demographic data, tumour characteristics, presenting symptoms, and post-treatment outcomes were analysed. RESULTS: Eighty-eight patients were included in the study (43 microsurgery, 45 radiotherapy). Twenty-seven (31%) patients presented with TGN symptoms. The median age of patients included was 56.5 (range 6-72 years), with a median follow-up for MS and SRS of 38 and 20 months, respectively (range 10-80 months). All 27 patients with TGN were offered MS as per protocol. Three patients declined, or were not fit for surgery, and received FRT. Complete resolution of TGN symptoms was achieved in all 24 patients who underwent MS and 33% (1/3) of patients with FRT. Eleven patients experienced transient post-operative complications (pseudomeningocele (6), meningitis (3), venous sinus thrombosis, cerebellar haemorrhagic contusion, and posterior fossa haematoma). Of the 45 patients in the radiotherapy cohort, 36 were suitable for SRS, of which 30 patients who met the dose-volume constraints for trigeminal nerve underwent single-fraction SRS and 6 patients who did not meet the constraints received HSRT. Nine patients (20%) received FRT including three patients with pre treatment TGN. None of the patients developed new TGN symptoms following SRS or HSRT. CONCLUSIONS: Our algorithm to select the optimal treatment modality appears to achieve comparable or better long-term outcome. Microsurgical resection in our cohort resulted in complete resolution of symptoms in all patients. None of our SRS- or HSRT-treated patients developed TGN during the follow-up period. The adherence to strict trigeminal nerve dose-volume constraints for SRS remains critical to minimise TGN post treatment. Fractionated radiotherapy is an alternative for patients who refuse surgery or those who are unfit for surgery. PMID- 29344780 TI - Intraoperative monitoring of Z-L response (ZLR) and abnormal muscle response (AMR) during microvascular decompression for hemifacial spasm. Interpreting the role of ZLR. AB - BACKGROUND: Z-L response (ZLR) has been suggested to a new electromyographic (EMG) potential recorded from the facial muscle of patient with hemifacial spasm (HFS) during microvascular decompression (MVD). Although ZLR has been suggested to be useful, experience of ZLR monitoring is limited and its significance during MVD is still unclear. METHODS: To investigate the significance of ZLR, both ZLR and abnormal muscle response (AMR) were simultaneously recorded before and after decompression of root exit zone (REZ) in 20 consecutive patients with HFS. RESULTS: All 19 AMRs elicited before REZ decompression disappeared immediately after decompression of REZ. ZLRs were also observed before decompression of REZ in 19 (95%) of 20 patients. Despite negative conversion of AMR after decompression in 19 patients, ZLR disappeared in only 13 (68.4%) of 19 patients. Among six sustained ZLRs, three showed reduction in the intensity of ZLRs while the other three remained unchanged. There were nine cases featuring attachment of the distal, non-offending portion of offending vessels to the distal course of the facial nerve in addition to attachment to REZ. Negative ZLR conversion and presence of peripheral contact of offending vessels to distal facial nerves showed significant correlations (p < 0.05). ZLR could be elicited by electrical stimulation at non-REZ-offending portion of the offending arterial wall, attached to the distal course of the facial nerve. HFS disappeared immediately in all 20 patients. CONCLUSIONS: Although ZLR might be helpful in cases with multiple offenders, interpretation of ZLR needs caution for non-specific transmission of electric current through vessel wall to facial nerve. PMID- 29344777 TI - Giant Cell Arteritis: Practical Pearls and Updates. AB - PURPOSE OF REVIEW: The purpose of this review is to summarize recent updates and distill practical points from the literature which can be applied to the care of patients with suspected and confirmed giant cell arteritis (GCA). RECENT FINDINGS: Contemporary thinking implicates a fundamental failure of T regulatory cell function in GCA pathophysiology, representing opportunity for novel therapeutic avenues. Tocilizumab has become the first Food and Drug Administration-approved treatment for GCA following demonstration of efficacy and safety in a phase 3 clinical trial. There have been significant parallel advances in both our understanding of GCA pathophysiology and treatment. Tocilizumab, and other agents currently under investigation in phase 2 and 3 clinical trials, presents a new horizon of hope for both disease remission and avoidance of glucocorticoid-related complications. PMID- 29344778 TI - The Relationship Between Vancomycin Trough Concentrations and AUC/MIC Ratios in Pediatric Patients: A Qualitative Systematic Review. AB - BACKGROUND: In adults, the area under the concentration-time curve (AUC) divided by the minimum inhibitory concentration (MIC) is associated with better clinical and bacteriological response to vancomycin in patients with methicillin-resistant Staphylococcus aureus who achieve target AUC/MIC >= 400. This target is often extrapolated to pediatric patients despite the lack of similar evidence. The impracticalities of calculating the AUC in practice means vancomycin trough concentrations are used to predict the AUC/MIC. OBJECTIVE: This review aimed to determine the relationship between vancomycin trough concentrations and AUC/MIC in pediatric patients. METHODS: We searched the MEDLINE and Embase databases, the Cochrane Database of Systematic Reviews, and the Cochrane Central Register of Controlled Trials using the medical subject heading (MeSH) terms vancomycin and AUC and pediatric* or paediatric*. Articles were included if they were published in English and reported a relationship between vancomycin trough concentrations and AUC/MIC. RESULTS: Of 122 articles retrieved, 11 met the inclusion criteria. One trial reported a relationship between vancomycin trough concentrations, AUC/MIC, and clinical outcomes but was likely underpowered. Five studies found troughs 6-10 mg/l were sufficient to attain an AUC/MIC > 400 in most general hospitalized pediatric patients. One study in patients undergoing cardiothoracic surgery found a trough of 18.4 mg/l achieved an AUC/MIC > 400. Two oncology studies reported troughs >= 15 mg/l likely attained an AUC/MIC >= 400. In critical care patients: one study found a trough of 9 mg/l did not attain the AUC/MIC target; another found 7 mg/l corresponded to an AUC/MIC of 400. CONCLUSIONS: Potential vancomycin targets varied based on the population studied but, for general hospitalized pediatric patients, troughs of 6-10 mg/l are likely sufficient to achieve AUC/MIC >= 400. For MIC >= 2 mg/l, higher troughs are likely necessary to achieve an AUC/MIC >= 400. More research is needed to determine the relationships between vancomycin trough concentrations, AUC/MIC, and clinical outcomes. PMID- 29344781 TI - Automated 3D Soma Segmentation with Morphological Surface Evolution for Neuron Reconstruction. AB - The automatic neuron reconstruction is important since it accelerates the collection of 3D neuron models for the neuronal morphological studies. The majority of the previous neuron reconstruction methods only focused on tracing neuron fibres without considering the somatic surface. Thus, topological errors often present around the soma area in the results obtained by these tracing methods. Segmentation of the soma structures can be embedded in the existing neuron tracing methods to reduce such topological errors. In this paper, we present a novel method to segment the soma structures with complex geometry. It can be applied along with the existing methods in a fully automated pipeline. An approximate bounding block is firstly estimated based on a geodesic distance transform. Then the soma segmentation is obtained by evolving the surface with a set of morphological operators inside the initial bounding region. By evaluating the methods against the challenging images released by the BigNeuron project, we showed that the proposed method can outperform the existing soma segmentation methods regarding the accuracy. We also showed that the soma segmentation can be used for enhancing the results of existing neuron tracing methods. PMID- 29344782 TI - Accuracy and efficiency of published film dosimetry techniques using a flat-bed scanner and EBT3 film. AB - Gafchromic EBT3 film is widely used for patient specific quality assurance of complex treatment plans. Film dosimetry techniques commonly involve the use of transmission scanning to produce TIFF files, which are analysed using a non linear calibration relationship between the dose and red channel net optical density (netOD). Numerous film calibration techniques featured in the literature have not been independently verified or evaluated. A range of previously published film dosimetry techniques were re-evaluated, to identify whether these methods produce better results than the commonly-used non-linear, netOD method. EBT3 film was irradiated at calibration doses between 0 and 4000 cGy and 25 pieces of film were irradiated at 200 cGy to evaluate uniformity. The film was scanned using two different scanners: The Epson Perfection V800 and the Epson Expression 10000XL. Calibration curves, uncertainty in the fit of the curve, overall uncertainty and uniformity were calculated following the methods described by the different calibration techniques. It was found that protocols based on a conventional film dosimetry technique produced results that were accurate and uniform to within 1%, while some of the unconventional techniques produced much higher uncertainties (> 25% for some techniques). Some of the uncommon methods produced reliable results when irradiated to the standard treatment doses (< 400 cGy), however none could be recommended as an efficient or accurate replacement for a common film analysis technique which uses transmission scanning, red colour channel analysis, netOD and a non-linear calibration curve for measuring doses up to 4000 cGy when using EBT3 film. PMID- 29344784 TI - The feasibility and efficacy of pure laparoscopic repeat hepatectomy. AB - BACKGROUND: Repeat hepatectomy is often required for hepatocellular carcinoma and metastatic tumors. However, this procedure is technically challenging, so laparoscopic repeat hepatectomy (LRH) has not been widely adopted. The aim of this study was to evaluate the feasibility and efficacy of LRH compared with open repeat hepatectomy (ORH) and laparoscopic primary hepatectomy (LPH). METHODS: We introduced laparoscopic hepatectomy at our institution in April 2014. We performed 127 LPH (LPH group) and 33 LRH procedures (LRH group) from April 2014 to April 2017; 37 patients underwent ORH from January 2010 to April 2017 (ORH group). This study retrospectively compared the patient characteristics and short term outcomes of the LRH and ORH groups as well as the LRH and LPH groups. RESULTS: There were no conversions to open surgery in the LRH group. In comparing the LRH and ORH groups, there were no significant differences in patient characteristics except for the type of approach to the previous hepatectomy (p = 0.004) and indocyanine green retention rate at 15 min (median 12.5 vs. 8.75%, p = 0.026). The LRH group had less blood loss (median 30 mL vs. 652 mL; p < 0.001), less intraoperative transfusion (6.1 vs. 32.4%; p = 0.006), and shorter postoperative hospital stays (median 6.5 days vs. 9.0 days; p < 0.001). There were no differences with regard to operation time, severe postoperative complications, and mortality. In comparing the LRH and LPH groups, there was a significant difference only in past history of abdominal surgery (100 vs. 61.4%; p < 0.001). In the short-term outcomes, the postoperative hospital stay was significantly shorter in the LRH group (median 6.5 days vs. 7 days; p = 0.033), and the other results were comparable between the two groups. CONCLUSIONS: LRH is feasible and useful for repeat hepatectomy, achieving good short-term outcomes. PMID- 29344783 TI - Endoscopic treatment of walled-off pancreatic necrosis complicated with pancreaticocolonic fistula. AB - BACKGROUND: Pancreaticocolonic fistulas (PCFs) are serious complication of acute pancreatitis related with high mortality. The aim of this study was to evaluate the efficiency and safety of endoscopic treatment in patients with walled-off pancreatic necrosis (WOPN) complicated with PCF. METHODS: This is a retrospective analysis of results and complications in the group of 226 patients, who underwent endoscopic treatment of symptomatic WOPN between years 2001 and 2016 in the Department of Gastroenterology and Hepatology of Medical University of Gdansk. RESULTS: PCF was recognized in 21/226 (9.29%) patients. Transmural drainage was performed in 20/21 (95.24%) patients. Transpapillary drainage was used in 2/21 (9.52) patients. The mean time since the start of endotherapy to the diagnosis of a fistulas was 9 (3-21) days. Fluoroscopic nasocystic tube-check imaging of an existing drain was the initial imaging diagnosis of a PCF in 19/21 (90.48%) patients. The mean duration of endoscopic drainage of WOPN was 39.29 (15-87) days. Procedure-related adverse events occurred in 10/21 (47.62%) patients and most of them were treated conservatively. Three patients required surgical treatment. One patient died during endotherapy. The closure of PCF was confirmed via imaging in 17/21 (80.95%) patients. The average time since the recognition till the closure of PCF was 21 (14-48) days. Complete therapeutic success of WOPN complicated with PCF was reached in 16/21 (76.19%) patients. Long-term success of endoscopic treatment was achieved in 15/21 (71.43%) patients. CONCLUSIONS: Endoscopic treatment of patients with WOPN complicated with PCF is an effective method with an acceptable number of complications. The complete regression of the WOPN may lead to spontaneous closure of pancreaticocolonic fistulas. PMID- 29344785 TI - Laparoscopic intracorporeal rectus aponeuroplasty (LIRA technique): a step forward in minimally invasive abdominal wall reconstruction for ventral hernia repair (LVHR). AB - BACKGROUND: Closing the defect (CD) during laparoscopic ventral hernia repair began to be performed in order to decrease seroma, to improve the functionality of the abdominal wall, and to decrease the bulging effect. However, tension at the incision after CD in large defects is related to an increased rate of pain and recurrence. We present the preliminary results of a new technique for medium midline hernias as an alternative to conventional CD. METHODS: A prospective controlled study was conducted from January 2015 to January 2017 to evaluate an elective new procedure (LIRA) performed on patients with midline ventral hernias (4-10 cm width). The posterior rectus aponeurosis was opened lengthwise around the hernia defect using a laparoscopic approach to create two flaps and was then sutured. The size of the flaps was estimated using a mathematical formula. An on lay mesh was placed intraperitoneal overlapping the fascia defect. The data analyzed included patient demographics, operative parameters, and complications. A computerized tomography was performed preoperatively and postoperatively (1 month and 1 year) to evaluate recurrence, distance between rectus and seroma. RESULTS: Twelve patients were included. Mean width of the defect was 5.5 cm. Average VAS (24 h) was 3.9, 1.1 (1 month), and 0 (1 year). Mean preoperative distance between rectus was 5.5 cm; postoperative was 2.2 cm (1 year). Radiological seroma at first month was detected in 50%. Mean follow-up was 15 months. CONCLUSION: The LIRA technique could be considered as an alternative to conventional CD or endoscopic component separation for medium defects under 10 cm in width. This technique obtained a "no tension" effect that could be related to a lower rate of postoperative pain with no recurrence or bulging, being a safe, feasible, and reproducible technique. PMID- 29344786 TI - Colonoscopy-induced acute diverticulitis: myth or reality? AB - BACKGROUND: Colonoscopy in patients with diverticulosis can be technically challenging and limited data exist relating to the risk of post-colonoscopy diverticulitis. Our aim was to evaluate the incidence, management, and outcomes of acute diverticulitis following colonoscopy. METHODS: Study design is retrospective cohort study. Data were gathered by conducting an automated search of the electronic patient database using current procedural terminology and ICD-9 codes. Patients who underwent a colonoscopy from 2003 to 2012 were reviewed to find patients who developed acute diverticulitis within 30 days after colonoscopy. Patient demographics and colonoscopy-related outcomes were documented, which include interval between colonoscopy and diverticulitis, colonoscopy indication, simultaneous colonoscopic interventions, and follow-up after colonoscopy. RESULTS: From 236,377 colonoscopies performed during the study period, 68 patients (mean age 56 years) developed post-colonoscopy diverticulitis (0.029%; 2.9 per 10,000 colonoscopies). Incomplete colonoscopies were more frequent among patients with a history of previous diverticulitis [n = 10 (29%) vs. n = 3 (9%), p = 0.03]. Mean time to develop diverticulitis after colonoscopy was 12 +/- 8 days, and 30 (44%) patients required hospitalization. 34 (50%) patients had a history of diverticulitis prior to colonoscopy. Among those patients, 14 underwent colonoscopy with an indication of surveillance for previous disease. When colonoscopy was performed within 6 weeks of a diverticulitis attack, surgical intervention was required more often when compared with colonoscopies performed after 6 weeks of an acute attack [n = 6 (100%) vs. n = 10 (36%), p = 0.006]. 6 (9%) out of 68 patients received emergency surgical treatment. 15 (24%) out of 62 patients who had non-surgical treatment initially underwent an elective sigmoidectomy at a later date. Recurrent diverticulitis developed in 16 (23%) patients after post-colonoscopy diverticulitis. CONCLUSIONS: Post-colonoscopy diverticulitis is a rare, but potentially serious complication. Although a rare entity, possibility of this complication should be kept in mind in patients presenting with symptoms after colonoscopy. PMID- 29344787 TI - A novel fully covered double-bump stent for staple line leaks after bariatric surgery: a retrospective analysis. AB - BACKGROUND: Staple line leakage after bariatric surgery can be treated by endoscopic placement of a self-expandable stent. The success rate of stent placement is generally high, but migration is a frequent adverse event that hampers successful treatment. The Niti-S Beta stent is a fully covered double bump stent that was specifically designed to prevent migration. This study aimed to evaluate the effectiveness and adverse event rate of the Niti-S Beta stent. METHODS: A retrospective study was performed in three high-volume bariatric centers. All consecutive patients between 2009 and 2016 who underwent placement of a Beta stent for staple line leakage were included. Primary outcome was resolution of the leakage; secondary outcome was the adverse event rate including migration. RESULTS: Thirty-eight patients were included. Twenty-five (66%) had resolution of the leakage. Success rate was higher in patients who were treated with implantation of a Beta stent as initial treatment (100%) than in patients who were treated with a stent after revisional surgery had failed (55%, p = 0.013). Migration occurred in 12 patients (32%). There were two severe adverse events requiring surgical intervention, including a bleeding from an aorto esophageal fistula. CONCLUSIONS: The success rate and the migration rate of the Beta stent seem comparable to other stents in this retrospective study. Despite the novel double-bump structure of the stent, the migration rate does not seem to be decreased. PMID- 29344788 TI - Intracorporeal versus extracorporeal anastomosis after laparoscopic left colectomy for splenic flexure cancer: results from a multi-institutional audit on 181 consecutive patients. AB - Although intracorporeal anastomosis has been demonstrated to be safe and effective after right colectomy, limited data are available about its efficacy after left colectomy for colon cancer located in splenic flexure. A multi institutional audit was designed, including 92 patients who underwent laparoscopic left colectomy with intracorporeal anastomosis (IA) compared with 89 matched patients who underwent a laparoscopic left colectomy with extracorporeal anastomosis (EA). There was no significant difference in terms of age, sex, BMI, and ASA score between the two groups. Post-surgical history and stage of disease according to AJCC/UICC TNM were also similar. IA and EA groups demonstrated similar oncologic radicality in terms of the number of lymph nodes harvested (18.5 +/- 9 vs. 17.5 +/- 8.4; p = 0.48). Recovery after surgery was also better in patients who underwent IA, as confirmed by the shorter time to flatus in the IA group (2.6 +/- 1.1 days vs. 3.4 +/- 1.2 days; p < 0.001) and higher post operative pain expressed in the mean VAS Scale in the EA group (1.7 +/- 2.1 vs. 3.5 +/- 1.6; p < 0.001). Laparoscopic left colectomy with intracorporeal anastomosis was associated with a lower rate of post-operative complications (OR 6.7, 95% CI 2.2-20; p = 0.001). However, when stratifying according to Clavien classification, the difference was consistently confirmed for less severe (class I and II) complications (OR 7.6, 95% CI 2.5-23, p = 0.001) but not for class III, IV, and V complications (OR 1.8, 95% CI 0.1-16.9; p = 0.59). Our results were consistent to hypothesize that a complete laparoscopic approach could be considered a safe method to perform laparoscopic left colectomy with the advantage of a guaranteed faster recovery after surgery. Further randomized clinical trials are needed to obtain a more definitive conclusion. PMID- 29344789 TI - Laparoscopic conversion in colorectal cancer surgery; is there any improvement over time at a population level? AB - Conversion of laparoscopic colorectal cancer resection has been associated with worse outcome, but this might have been related to a learning curve effect. This study aimed to evaluate incidence, predictive factors and outcomes of laparoscopic conversion after the implementation phase of laparoscopic surgery at a population level. Patients undergoing elective resection of non-locally advanced, non-metastatic colorectal cancer between 2011 and 2015 were included. Data were extracted from the Dutch Surgical Colorectal Audit. Patients were grouped as laparoscopic completed (LR), laparoscopic converted (CONV) with further specification of timing (within or after 30 min) as registered in the DSCA, and open resection (OR). Uni- and multi-variate analyses were used to determine predictors of conversion and outcome (complicated course and mortality), with evaluation of trends over time. A total of 23,044 patients with colon cancer and 11,324 with rectal cancer were included. Between 2011 and 2015, use of laparoscopy increased from 55 to 84% in colon cancer, and from 49 to 89% in rectal cancer. Conversion rates decreased from 11.8 to 8.6% and from 13 to 8.0%, respectively. Laparoscopic hospital volume was independently associated with conversion rate. Only for colon cancer, the rate of complicated course was significantly higher after CONV compared to OR (adjusted odds ratio 1.486; 95% CI 1.298-1.702), and significantly higher after late (> 30 min) compared to early conversion (adjusted odds ratio 1.341; 1.046-1.719). There was no impact of CONV on mortality in both colon and rectal cancer. The use of laparoscopic colorectal cancer surgery increased to more than 80% at a national level, accompanied by a decrease in conversion which is significantly related to the laparoscopic hospital volume. Conversion was only associated with complicated course in colon cancer, especially when the reason for conversion consisted of an intra-operative complication, without affecting mortality. PMID- 29344790 TI - Prospective analysis of delayed colorectal post-polypectomy bleeding. AB - BACKGROUNDS/AIMS: Although post-polypectomy bleeding is the most frequent complication after colonoscopic polypectomy, only few studies have investigated the incidence of bleeding prospectively. The aim of this study was to investigate the incidence of delayed post-polypectomy bleeding and its associated risk factors prospectively. METHODS: Patients who underwent colonoscopic polypectomy at Kangbuk Samsung Hospital from January 2013 to December 2014 were prospectively enrolled in this study. Trained nurses contacted patients via telephone 7 and 30 days after polypectomy and completed a standardized questionnaire regarding the development of bleeding. Delayed post-polypectomy bleeding was categorized as minor or major and early or late bleeding. Major delayed bleeding was defined as a > 2-g/dL drop in the hemoglobin level, requiring hospitalization for control of bleeding or blood transfusion; late delayed bleeding was defined as bleeding occurring later than 24 h after polypectomy. RESULTS: A total of 8175 colonoscopic polypectomies were performed in 3887 patients. Overall, 133 (3.4%) patients developed delayed post-polypectomy bleeding. Among them, 90 (2.3%) and 43 (1.1%) patients developed minor and major delayed bleeding, respectively, and 39 (1.0%) patients developed late delayed bleeding. In the polyp-based multivariate analysis, young age (< 50 years; odds ratio [OR] 2.10; 95% confidence interval [CI] 1.18-3.68), aspirin use (OR 2.78; 95% CI 1.23-6.31), and polyp size of > 10 mm (OR 2.45; 95% CI 1.38-4.36) were significant risk factors for major delayed bleeding, while young age (< 50 years; OR 2.6; 95% CI 1.35 5.12) and immediate bleeding (OR 3.3; 95% CI 1.49-7.30) were significant risk factors for late delayed bleeding. CONCLUSIONS: Young age, aspirin use, polyp size, and immediate bleeding were found to be independent risk factors for delayed post-polypectomy bleeding. PMID- 29344791 TI - SAGES's advanced GI/MIS fellowship curriculum pilot project. AB - BACKGROUND: The American health care system faces deficits in quality and quantity of surgeons. SAGES is a major stakeholder in surgical fellowship training and is responsible for defining the curriculum for the Advanced GI/MIS fellowship. SAGES leadership is actively adapting this curriculum. METHODS: The process of reform began in 2014 through a series of iterative meetings and discussions. A working group within the Resident and Fellow Training Committee reviewed case log data from 2012 to 2015. These data were used to propose new criteria designed to provide adequate exposure to core content. The working group also proposed using video assessment of an MIS case to provide objective assessment of competency. RESULTS: Case log data were available for 326 fellows with a total of 85,154 cases logged (median 227 per fellow). The working group proposed new criteria starting with minimum case volumes for five defined categories including foregut (20), bariatrics (25), inguinal hernia (10), ventral hernia (10), and solid organ/colon/thoracic (10). Fellows are expected to perform an additional 75 complex MIS cases of any category for a total of 150 required cases overall. The proposal also included a minimum volume of flexible endoscopy (50) and submission of an MIS foregut case for video assessment. The new criteria more clearly defined which surgeon roles count for major credit within individual categories. Fourteen fellowships volunteered to pilot these new criteria for the 2017-2018 academic year. CONCLUSIONS: The new SAGES Advanced GI/MIS fellowship has been crafted to better define the core content that should be contained in these fellowships, while still allowing sufficient heterogeneity so that individual learners can tailor their training to specific areas of interest. The criteria also introduce innovative, evidence-based methods for assessing competency. Pending the results of the pilot program, SAGES will consider broad implementation of the new fellowship criteria. PMID- 29344792 TI - Post-conditioning hormesis creates a "subtraction to background" disease process: biological, aging, and environmental risk assessment implications. AB - The interaction of background disease processes with environmental induced diseases has long been an issue of considerable interest and debate with respect to its impact on risk assessment. Whether and to what extent these processes should be considered independent or additive to background has been the principal focus of debate. The concept of hormesis, a biphasic dose response characterized by a low dose stimulation and a high dose inhibition, as framed within the context of post-conditioning, reveal the occurrence of a third type of "background" possibility, that of "subtraction to background". This novel application of the hormesis concept, which is framed within the biological context of post-conditioning adaptive processes, offers considerable implications for the assessment of aging and environmental risk assessment. PMID- 29344793 TI - The Role of Bone Secreted Factors in Burn-Induced Muscle Cachexia. AB - PURPOSE OF REVIEW: Burn injury results in resorptive bone loss, failure to make new bone, and muscle protein breakdown resulting in cachexia. The purpose of this review is to examine the relationship between bone loss and muscle atrophy in burn injury with a view to understanding the process at work and how it may apply to other conditions that have similar features. RECENT FINDINGS: We present data suggesting that the use of bisphosphonates in the first 10 days following the burn prevents not only the resorptive bone loss but also the muscle wasting. While an extra-osseous effect of bisphosphonates remains possible, existing evidence points to a paracrine effect of bone on maintenance of muscle mass and strength. Proposed paracrine factors produced by bone include prostaglandin E2 and components of the Wnt signaling pathway. TGFbeta may be a bone paracrine factor that causes oxidative damage to muscle. In the light of the pattern of evidence, burn patients suffer acute resorptive bone loss and muscle wasting. This is likely due to the effects of inflammatory cytokines and endogenous glucocorticoid production in exacerbating oxidative stress. Early use of bisphosphonates can maintain bone mass leading to a paracrine effect of bone in the maintenance of muscle mass, although one cannot completely discount a direct effect of bisphosphonate on muscle. Because investigators report this relationship in a variety of conditions in addition to burns, physicians should seriously consider the early use of bisphosphonates to maintain bone and muscle mass in a variety of neuromuscular and skeletal diseases. PMID- 29344794 TI - Ticagrelor for Secondary Prevention of Atherothrombotic Events After Myocardial Infarction: An Evidence Review Group Perspective of a NICE Single Technology Appraisal. AB - The National Institute for Health and Care Excellence (NICE) invited AstraZeneca, the manufacturer of ticagrelor (Brilique(r)), to submit evidence on the clinical and cost effectiveness of ticagrelor 60 mg twice daily (BID) in combination with low-dose aspirin [acetylsalicylic acid (ASA)] compared with ASA only for secondary prevention of atherothrombotic events in patients with a history of myocardial infarction (MI) and who are at increased risk of atherothrombotic events. Kleijnen Systematic Reviews Ltd (KSR), in collaboration with Maastricht University Medical Centre+, was commissioned as the evidence review group (ERG). This paper summarises the company submission (CS), the ERG report and the NICE guidance produced by the appraisal committee (AC) for the use of ticagrelor in England and Wales. The ERG critically reviewed the clinical- and cost effectiveness evidence in the CS. The systematic review conducted as part of the CS identified one randomised controlled trial (RCT), PEGASUS-TIMI 54. This trial reported the time to first occurrence of any event from the composite of cardiovascular death, MI and stroke as the primary outcome (hazard ratio 0.84 ticagrelor 60 mg BID vs. placebo, 95% confidence interval 0.74-0.95). The population addressed in the CS was a subgroup of the PEGASUS-TIMI 54 trial population, i.e. the 'base-case' population, which comprised patients who had experienced an MI between 1 and 2 years ago, whereas the full trial population included patients who had experienced an MI between 1 and 3 years ago. While the ERG believed the findings of this RCT to be robust, doubts concerning the applicability of the trial to UK patients were raised. The company submitted an individual patient simulation model to estimate the cost-effectiveness of ticagrelor 60 mg BID + ASA versus ASA only. Parametric time-to-event models were used to estimate the time to first and subsequent (cardiovascular) events, time to treatment discontinuation and time to adverse events. The company's base-case analysis resulted in an incremental cost-effectiveness ratio (ICER) of L20,098 per quality-adjusted life-year (QALY) gained. The main issues surrounding the cost effectiveness of ticagrelor 60 mg BID + ASA were the use of parametric time to-event models estimated based on the full trial population instead of being fitted to the 'label' population (the 'label' population comprised the 'base case' population and patients who started ticagrelor 60 mg BID within 1 year of previous adenosine diphosphate inhibitor treatment), the incorrect implementation of the probabilistic sensitivity analysis (PSA) of the individual patient simulation, and simplifications of the model structure that may have biased the health benefits and costs estimations of the intervention and comparator. The ERG believed the use of the full trial population to inform the parametric time-to event models was not appropriate because the 'label' population was the main focus of the scope and CS. The ERG could not investigate the magnitude of the bias introduced by this assumption. The PSA of the individual patient simulation provided unreliable probabilistic results and underestimated the uncertainty surrounding the results because it was based on a single patient. The ERG used the cohort simulation presented in the cost-effectiveness model to perform its base-case and additional analyses and to obtain probabilistic results. The ERG amended the company cost-effectiveness model, which resulted in an ERG base-case ICER of L24,711 per QALY gained. In its final guidance, the AC recommended treatment with ticagrelor 60 mg BID + low-dose ASA for secondary prevention of atherothrombotic events in adults who have had an MI and are at increased risk of atherothrombotic events. PMID- 29344797 TI - Annular dynamics of memo3D annuloplasty ring evaluated by 3D transesophageal echocardiography. AB - BACKGROUND: We assessed the mitral annular motion after mitral valve repair with the Sorin Memo 3D(r) (Sorin Group Italia S.r.L., Saluggia, Italy), which is a unique complete semirigid annuloplasty ring intended to restore the systolic profile of the mitral annulus while adapting to the physiologic dynamism of the annulus, using transesophageal real-time three-dimensional echocardiography. METHODS: 17 patients (12 male; mean age 60.4 +/- 14.9 years) who underwent mitral annuloplasty using the Memo 3D ring were investigated. Mitral annular motion was assessed using QLAB(r)version8 allowing for a full evaluation of the mitral annulus dynamics. The mitral annular dimensions were measured throughout the cardiac cycle using 4D MV assessment2(r) while saddle shape was assessed through sequential measurements by RealView(r). RESULTS: Saddle shape configuration of the mitral annulus and posterior and anterior leaflet motion could be observed during systole and diastole. The mitral annular area changed during the cardiac cycle by 5.7 +/- 1.8%.The circumference length and diameter also changed throughout the cardiac cycle. The annular height was significantly higher in mid systole than in mid-diastole (p < 0.05). CONCLUSIONS: The Memo 3D ring maintained a physiological saddle-shape configuration throughout the cardiac cycle. Real time three-dimensional echocardiography analysis confirmed the motion and flexibility of the Memo 3D ring upon implantation. PMID- 29344798 TI - Association between values of preoperative 6-min walk test and surgical outcomes in lung cancer patients with decreased predicted postoperative pulmonary function. AB - OBJECTIVE: We retrospectively investigated the possibility that the 6-min walk test (6MWT) could predict surgical outcomes in lung cancer patients with decreased predicted postoperative (ppo) lung function. METHODS: Patients were enrolled based on their preoperative spirometry: <60% of the ppo forced expiratory volume in 1 s (FEV1.0) or < 60% of the ppo lung carbon monoxide diffusion capacity (DLco). Morbidity, oxygen inhalation required > 10 days, home oxygen therapy (HOT) requirement, unexpected readmission within 90 days, and 90 day mortality were included as surgical outcomes. The correlations with walking distance and the minimum SpO2 (SpO2min) and maximum decrease in SpO2 (DeltaSpO2) during the 6MWT were analyzed using logistic regression analysis, adjusting for age, sex, and surgical procedure. RESULTS: Altogether, 121 patients were analyzed. Logistic regression analysis revealed that higher DeltaSpO2 and lower SpO2min were significantly correlated with a higher risk of prolonged need for oxygen inhalation and HOT, surgical morbidity, and 90-day mortality. Cut-off values of > 4% for DeltaSpO2 were significant for prolonged oxygen inhalation and surgical morbidity. Cut-off values of < 89-91% for SpO2min were also significant for the need for prolonged oxygen inhalation, surgical morbidity, and HOT requirement. There were no significant correlations between walking distance and each surgical outcome. CONCLUSIONS: Oxygen desaturation during 6MWT was a good predictor for poor surgical outcomes in lung cancer patients with decreased ppo pulmonary function. PMID- 29344799 TI - Correction to: Current status of cardiovascular surgery in Japan, 2013 and 2014: A report based on the Japan Cardiovascular Surgery database 3. Coronary artery bypass surgery. AB - In the original publication of this article, Table 4 was published incorrectly. The correct Table 4 is given in the following page. PMID- 29344800 TI - Platycodon saponins from Platycodi Radix (Platycodon grandiflorum) for the Green Synthesis of Gold and Silver Nanoparticles. AB - A green synthesis of gold and silver nanoparticles is described in the present report using platycodon saponins from Platycodi Radix (Platycodon grandiflorum) as reducing agents. Platycodin D (PD), a major triterpenoidal platycodon saponin, was enriched by an enzymatic transformation of an aqueous extract of Platycodi Radix. This PD-enriched fraction was utilized for processing reduction reactions of gold and silver salts to synthesize gold nanoparticles (PD-AuNPs) and silver nanoparticles (PD-AgNPs), respectively. No other chemicals were introduced during the reduction reactions, providing an entirely green, eco-friendly, and sustainable method. UV-visible spectra showed the surface plasmon resonance bands of PD-AuNPs at 536 nm and PD-AgNPs at 427 nm. Spherically shaped nanoparticles were observed from high-resolution transmission electron microscopy with average diameters of 14.94 +/- 2.14 nm for PD-AuNPs and 18.40 +/- 3.20 nm for PD-AgNPs. Minor triangular and other polygonal shapes were also observed for PD-AuNPs along with spherical ones. Atomic force microscopy (AFM) images also demonstrated that both nanoparticles were mostly spherical in shape. Curvature-dependent evolution was employed to enhance the AFM images and precisely measure the sizes of the nanoparticles. The sizes were measured as 19.14 nm for PD-AuNPs and 29.93 nm for PD-AgNPs from the enhanced AFM images. Face-centered cubic structures for both nanoparticles were confirmed by strong diffraction patterns from high-resolution X-ray diffraction analyses. Fourier transform infrared spectra revealed the contribution of -OH, aromatic C=C, C-O, and C-H functional groups to the synthesis. Furthermore, the catalytic activity of PD-AuNPs was assessed with a reduction reaction of 4-nitrophenol to 4-aminophenol in the presence of sodium borohydride. The catalytic activity results suggest the potential application of these gold nanoparticles as catalysts in the future. The green strategy reported in this study using saponins as reducing agents will pave new roads to develop novel nanomaterials with versatile applications. PMID- 29344801 TI - Toxoplasma gondii in sympatric domestic and wild ungulates in the Mediterranean ecosystem. AB - Toxoplasma gondii is a zoonotic protozoan of worldwide distribution. The present study provides information on risk factors affecting T. gondii infection in domestic and free-ranging wild ungulates sharing habitats in Mediterranean ecosystems in Spain. Serum samples from 482 extensively reared domestic ruminants and 2351 wild ungulates were tested for T. gondii antibodies using the modified agglutination test (MAT, cut-off 1:25). Toxoplasma gondii seroprevalence was 41.2% of 194 sheep, 18.6% of 199 cattle and 5.6% of 89 goats. The main risk factors associated with infection in livestock were the presence of cats, feeding on the ground and at stubble fields. In wild ungulates, T. gondii antibodies were detected in 10.5% of 1063 red deer, 15.6% of 294 fallow deer, 5.6% of 216 European mouflon, 5.6% of 90 Spanish ibex, 13.6% of 22 roe deer and 18.6% of 666 wild boars. The risk factors affecting T. gondii infection in wildlife were species, age and hunting season. Significantly higher seroprevalence was found in domestic ruminants, particularly in sheep, compared to the wild species tested. The present study indicates widespread exposure to T. gondii among domestic and wild ungulates in Southern Spain, with significant differences among species sharing the same ecosystem. The high seroprevalence observed in domestic ruminants, particularly in sheep, reinforces the need for farm management practices to control the risk factors associated with T. gondii infection in extensively reared livestock. Consumption of raw and undercooked food products from domestic and wildlife species may have important implications for public health. PMID- 29344802 TI - Protein profiling of Acanthamoeba species using MALDI-TOF MS for specific identification of Acanthamoeba genotype. AB - Acanthamoeba spp. are ubiquitous in the environment and have the potential to cause severe infections. The different genotypes of Acanthamoeba have been shown to influence the severity of the disease and response to therapy. Characterizing Acanthamoeba spp. upto genotype can aid in infection control practices. Twenty five Acanthamoeba isolates, characterized by 18S rDNA sequencing, were subjected to MALDI-TOF MS analysis by creating a database for the individual genotypes. The differentiating features of the various spectra were observed; the coded samples were then tested against the created database. The results of identification were compared with sequencing. Five different genotypes were obtained-T3, T4, T5, T10, and T11. Spectral analysis revealed genus-specific and genotype-specific peaks. The peak patterns for individual genotype were discrete and reproducible. Clinical isolates produced different peaks from the environmental isolate of the same genotype. A concordance of 92% was obtained with MALDI-TOF MS in comparison with 18sDNA sequencing. MALDI-TOF MS, once optimized, has the potential to reliably identify the genotype of Acanthamoeba spp. and to differentiate clinical isolate from mere contaminant. PMID- 29344803 TI - Toxoplasma gondii: prevalence and characterization of new genotypes in free-range chickens from south Brazil. AB - Toxoplasma gondii is an intracellular parasite that can infect all warm-blooded animals including humans. Recent studies showed that T. gondii strains from South America are genetically diverse. The present work aimed to determine T. gondii prevalence in free-ranging chicken in northwest Parana state in Brazil by two serological tests, to isolate the parasites from seropositive chickens and to genotype the isolates. Antibodies to T. gondii in 386 serum samples from 24 farms were investigated by immunofluorescence antibody assay (IFA) and modified agglutination test (MAT). Samples having titers >= 16 were considered positive for both tests. Among the 386 serum samples, 102 (26.4%) were positive for IFA, 64 (16.6%) were positive for MAT, 47 (12.2%) were positive in both tests, and 119 (30.8%) were positive in at least one of the two tests. Brain and pool of heart, lung, and liver from the 119 seropositive chickens were used for mouse bioassay to isolate the parasites. Thirty eight (31.9%) of these seropositive chickens were considered positives in mouse bioassay and 18 isolates were obtained. The isolates were characterized by 10 PCR-RFLP genetic markers including SAG1, SAG2 (5'-3'SAG2, alt.SAG2), SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, and Apico. Results of genotyping were compared with the genotypes in ToxoDB database. It revealed ten genotypes, including ToxoDB PCR-RFLP genotypes #6 (n = 2), #19 (n = 1), #21 (n = 2), #111 (n = 2), #152 (n = 1), and #175 (n = 1) and four new types not described before. Our results confirmed a high genetic diversity of this parasite in southern Brazil and also showed that the use of two serological tests in combination can improve the chance of T. gondii isolation. More studies should be taken to determine the zoonotic potential of chickens in the transmission of T. gondii. PMID- 29344804 TI - Influence of highly concentrated fluoride dentifrices on remineralization characteristics of enamel in vitro. AB - OBJECTIVES: The aim of this in vitro study was to evaluate the role of highly fluoridated dentifrice on remineralization characteristics of lowly and highly pre-demineralized enamel artificial caries lesions. METHODS: Bovine enamel specimens were prepared (pH 4.95; 21 days) and discriminated in either lowly [L] or highly [H] pre-demineralized artificial caries lesions. Specimens with a mean DeltaZbaseline,L (95% CI) of 5120 (4995; 5245) vol.% * MUm and a mean DeltaZbaseline,H of 8187 (8036; 8339) vol.% * MUm were selected and randomly allocated to 12 groups (n = 20). Treatments during pH-cycling (28 days; 6 * 60 min demineralization/day) were brushing 2*/day with fluoride-free (0 ppm F- [L0/H0]), 1100 ppm F- [L1100/H1100], 2800 ppm F- [L2800/H2800], 5000 ppm F- [L5000/H5000], 5000 ppm F- + glycerin [L5000 + glycerin/H5000 + glycerin], and 5000 ppm F- + TCP [L5000 + TCP/H5000 + TCP] containing dentifrices. Dentifrice slurries were prepared with deionized water (1:3wt/wt). After cycling specimens presenting lesion surface loss were discarded and for the remaining 202 specimens, transversal microradiographic (TMR) analyses (DeltaZpH-cycle/LDpH cycle) were performed again. Changes in mineral loss (DeltaDeltaZ = DeltaZbaseline - DeltaZpH-cycle) and lesion depth (DeltaLD = LDbaseline - LDpH cycle) were calculated. RESULTS: Significant differences for DeltaDeltaZ could be found between L0, L1100, and L5000 as well as H0, H1100, and H2800/H5000 (p <= 0.01; ANCOVA). Except for 0 ppm F-, higher DeltaDeltaZ could be found in highly compared with lowly demineralized specimens (p <= 0.004; ANCOVA). After pH cycling, a second lesion front could only be observed in H5000 and H5000 + TCP. The correlation between DeltaDeltaZ and F- was moderate for lowly and highly demineralized lesions (rL = 0.591; pL < 0.001; rH = 0.746; pH < 0.001), indicating a fluoride dose response for both. CONCLUSION: For both baseline substrate conditions, a dose response for fluoride could be revealed. CLINICAL SIGNIFICANCE: Remineralization characteristics of enamel directly depended on baseline mineral loss. PMID- 29344805 TI - Salivary biomarkers for oral cancer and pre-cancer screening: a review. AB - OBJECTIVE: The objective of the study was to conduct a systematic review of the literature assessing potential salivary biomarkers of oral cancer and pre-cancer and discuss emerging issues and challenges in relation to oral cancer and pre cancer diagnostics. MATERIALS AND METHODS: Search for articles involved the Medline, PubMed, and EMBASE. Specific terms were used from January 1995 to March 2017 by three experts. RESULTS: This search collected 270 articles, of which 105 articles such as reviews, case reports, news, letter to editor, etc. in first round and 117 articles such as publications in other languages than English, non human studies, etc. were excluded. The remaining 48 articles considered analyzing whole saliva as well as specific gland saliva. Thirty-one studies considered oral stimuli such as eating, drinking, and oral hygiene practices for varied periods of time prior to sample collection. The time of collection of saliva was morning in most studies, but the exact time of collection was not mentioned. Three studies showed to have evaluated the whole saliva without centrifugation. Two dimensional gel electrophoresis and tandem mass spectrometry were the most commonly used methods. Most of the potential salivary biomarkers of oral cancer are salivary proteins. CONCLUSION: Combination approach of salivary biomarkers could be used as screening tool to improve early detection and diagnostic precision of oral pre-cancer and cancer. CLINICAL RELEVANCE: The current findings are of importance for clinicians and researchers to mitigate the challenges in salivary-based diagnosis of oral cancer and to evaluate reliable, specific, and sensitive salivary biomarkers for oral pre-cancer and cancer diagnosis. PMID- 29344806 TI - Comparison of two observational methods, scanning electron and confocal laser scanning microscopies, in the adhesive interface analysis of endodontic sealers to root dentine. AB - OBJECTIVES: To compare the accuracy of confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM) during the analysis of the adhesive interface integrity and intratubular penetration of root canal sealers to radicular dentine. MATERIALS AND METHODS: Twenty roots of human maxillary incisors were prepared and distributed into two groups (n = 10), followed by filling with gutta-percha and Endofill (G1) or AH Plus (G2). After 7 days, roots were sectioned and analyzed under CLSM and SEM. Score systems were used to evaluate the adhesive interface integrity (0-4) and sealer intratubular penetration (0-3). Data were submitted to Wilcoxon-Mann-Whitney and Kendall correlation statistical tests (alpha = 5%). RESULTS: In the adhesive interface analysis, CLSM was similar (P = 0.157) to SEM for Endofill; however, the results were different for AH Plus (P = 0.029). Intratubular penetration had significant difference between observational methods for both sealers (P < 0.0001). Correlation analysis between SEM and CLSM for adhesive interface was moderate for Endofill and low for AH Plus. Intratubular penetration was low for both sealers. CONCLUSION: SEM and CLSM analysis had similar results when sealers were compared, with a more homogeneous adhesive interface, and greater intratubular penetration for AH Plus. Comparison between observational methods demonstrated low positive correlation for adhesive interface and intratubular penetration analysis. CLINICAL RELEVANCE: A proper interface formed between sealer and dentine is very important for final quality of root canal filling. Observational methods which allow an accurate analysis of this interface must be selected to assess such features. PMID- 29344807 TI - Inhibition of bone resorption by bisphosphonates interferes with orthodontically induced midpalatal suture expansion in mice. AB - OBJECTIVES: Craniofacial sutures are important growth sites for skull development and are sensitive to mechanical stress. In order to determine the role of bone resorption in stress-mediated sutural bone growth, midpalatal suture expansion was performed in mice receiving alendronate, an anti-resorptive bisphosphonate. MATERIALS AND METHODS: The midpalatal sutures of 8-week-old C57BL/6 mice were expanded by orthodontic wires over the period of 2 weeks. Mice with maxillary expansion without drug treatment as well as untreated animals served as controls. Skulls were analyzed with micro-computed tomography (micro-CT), immunohistochemistry and histology. RESULTS: Maxillary expansion in mice without drug treatment resulted in an increase of TRAP-positive osteoclasts. In contrast, no increase in osteoclasts was observed in expanded sutures of mice with bisphosphonate treatment. Double calcein labeling demonstrated rapid bone formation on the oral edges of the expanded sutures in mice without bisphosphonate treatment. Less bone formation was observed in bisphosphonate treated mice after expansion. Histology revealed that the sutural architecture was reestablished in expanded sutures of mice without bisphosphonate treatment. In contrast, the sutural architecture was disorganized and the cartilage had an irregular form, following expansion in bisphosphonate-treated mice. Finally, micro-CT imaging demonstrated that the total amount of maxillary expansion was significantly lower in mice with bisphosphonate treatment as compared to those of mice without drug treatment. CONCLUSIONS: In conclusion, our results indicate that osteoclast-mediated bone resorption is needed for maxillary suture expansion and reorganization of sutural architecture. CLINICAL SIGNIFICANCE: Orthodontic palatal expansion can be complicated in patients with inherited or drug-induced diseases of osteoclast dysfunction. PMID- 29344808 TI - Minimally Invasive Esophagectomy with Thoracic Duct Resection Post Neoadjuvant Chemoradiotherapy for Carcinoma Esophagus-Impact on Lymph Node Yield and Hemodynamic Parameters. AB - BACKGROUND: Neoadjuvant therapy followed by surgery is the current recommended treatment for locally advanced esophageal carcinoma. Thoracic duct (TD) resection was indicated for radical mediastinal lymphadenectomy. However, TD resection can cause hemodynamic disturbances. The presence of metastasis in TD has not been previously studied. METHODS: Twenty-two patients who underwent minimally invasive esophagectomy with D2 lymphadenectomy after neoadjuvant chemoradiotherapy for esophageal squamous cell carcinoma were analyzed. Ten patients had their TD resected from thoracic inlet till the esophageal hiatus. Multiple histopathological sections of the TD were examined for evidence of tumor spread. Intraoperative and immediate (48 h) postoperative hemodynamic parameters, lymph node yield, and postoperative morbidity were compared between TD-resected and TD preserved groups. RESULTS: The median postoperative day 1 fluid requirement (3310 mL vs. 2875 mL, P = 0.059) and the median postoperative day 2 pulse rate were higher in the TD-resected group (111/min vs. 95/min, P = 0.043). There was no significant difference in the intraoperative fluid infusion, blood loss, urine output, mean blood pressure, pulse rate, postoperative urine output, and mean blood pressure between two groups. Median (range) mediastinal lymph node count was similar in TD-resected and TD-preserved groups [15(11-32) vs. 14(9-31), P = 0.283]. Pathological examination of TD did not reveal tumor cells in any of the patients. There was no significant difference in the postoperative morbidity between two groups except for cervical anastomotic dehiscence (P = 0.007). CONCLUSIONS: Minimally invasive esophagectomy with TD resection causes minor hemodynamic changes in the immediate postoperative period, without adversely affecting the postoperative outcome. In the setting of neoadjuvant chemoradiotherapy, TD resection does not increase lymph node yield. PMID- 29344809 TI - Regeneration of functional alveoli by adult human SOX9+ airway basal cell transplantation. AB - Irreversible destruction of bronchi and alveoli can lead to multiple incurable lung diseases. Identifying lung stem/progenitor cells with regenerative capacity and utilizing them to reconstruct functional tissue is one of the biggest hopes to reverse the damage and cure such diseases. Here we showed that a rare population of SOX9+ basal cells (BCs) located at airway epithelium rugae can regenerate adult human lung. Human SOX9+ BCs can be readily isolated by bronchoscopic brushing and indefinitely expanded in feeder-free condition. Expanded human SOX9+ BCs can give rise to alveolar and bronchiolar epithelium after being transplanted into injured mouse lung, with air-blood exchange system reconstructed and recipient's lung function improved. Manipulation of lung microenvironment with Pirfenidone to suppress TGF-beta signaling could further boost the transplantation efficiency. Moreover, we conducted the first autologous SOX9+ BCs transplantation clinical trial in two bronchiectasis patients. Lung tissue repair and pulmonary function enhancement was observed in patients 3-12 months after cell transplantation. Altogether our current work indicated that functional adult human lung structure can be reconstituted by orthotopic transplantation of tissue-specific stem/progenitor cells, which could be translated into a mature regenerative therapeutic strategy in near future. PMID- 29344810 TI - Dehydroepiandrosterone (DHEA) supplementation: an underappreciated cause of premature progesterone elevation detected during frozen embryo transfer. PMID- 29344811 TI - Metabolic evolution and a comparative omics analysis of Corynebacterium glutamicum for putrescine production. AB - Putrescine is widely used in the industrial production of bioplastics, pharmaceuticals, agrochemicals, and surfactants. Because the highest titer of putrescine is much lower than that of its precursor L-ornithine reported in microorganisms to date, further work is needed to increase putrescine production in Corynebacterium glutamicum. We first compared 7 ornithine decarboxylase genes and found that the Enterobacter cloacae ornithine decarboxylase gene speC1 was most suitable for putrescine production in C. glutamicum. Increasing NADPH availability and blocking putrescine oxidation and acetylation were chosen as targets for metabolic engineering. The putrescine producer C. glutamicum PUT4 was first constructed by deleting puo, butA and snaA genes, and replacing the fabG gene with E. cloacae speC1. After adaptive evolution with C. glutamicum PUT4, the evolved strain C. glutamicum PUT-ALE, which produced an 96% higher amount of putrescine compared to the parent strain, was obtained. The whole genome resequencing indicates that the SNPs located in the odhA coding region may be associated with putrescine production. The comparative proteomic analysis reveals that the pentose phosphate and anaplerotic pathway, the glyoxylate cycle, and the ornithine biosynthetic pathway were upregulated in the evolved strain C. glutamicum PUT-ALE. The aspartate family, aromatic, and branched chain amino acid and fatty acid biosynthetic pathways were also observed to be downregulated in C. glutamicum PUT-ALE. Reducing OdhA activity by replacing the odhA native start codon GTG with TTG and overexpression of cgmA or pyc458 further improved putrescine production. Repressing the carB, ilvH, ilvB and aroE expression via CRISPRi also increased putrescine production by 5, 9, 16 and 19%, respectively. PMID- 29344812 TI - Short-term and long-term effects of osteoporosis on incisor teeth and femoral bones evaluated by Raman spectroscopy and energy dispersive X-ray analysis in ovariectomized rats. AB - There are few published data on the relationship between loss of bone mass due to osteoporosis and poor tooth quality. This study analyzed the effects of osteoporosis on incisor teeth and femoral bones using optical techniques in rats. Twenty female Wistar rats aged 6 months (n = 20) were randomized into two groups: control group, non-ovariectomized rats (n = 10); ovariectomy group, ovariectomized rats to induce osteoporosis (n = 10). Each group was subdivided randomly into two groups containing five rats each as follows. Control group 1: non-ovariectomized rats euthanized at the age of 9 or 3 months post-ovariectomy (n = 5); Control group 2: non-ovariectomized rats euthanized at the age of 1 year or 6 months post-ovariectomy (n = 5); ovariectomy group 1: ovariectomized rats euthanized at the age of 9 months or 3 months post-ovariectomy (n = 5); ovariectomy group 2: ovariectomized rats euthanized at the age of 1 year or 6 months post-ovariectomy (n = 5). The incisor teeth and femoral bones of Wistar rats were removed to perform Raman spectroscopy using an excitation laser at 785 nm. In addition, an energy-dispersive X-ray spectrometer system was used to evaluate calcium (Ca) and phosphorus (P). The main findings included significant changes (p < 0.05) for phosphate and carbonate band areas for both incisor teeth and femur bones. In addition, there was significant negative correlation between the P concentration and phosphate/carbonate ratio (lower P content-larger ratio, p < 0.05) for incisor teeth and femoral bones. The proline and CH2 wag band areas were significantly reduced only for the incisor teeth (p < 0.05). Therefore, Raman spectroscopy assessed the compositional, physicochemical and structural changes in hard tissue. The current study also pointed out the possible action mechanisms of these changes, bone fracture risk and dental fragility. It is important to emphasize that poor dental quality may also occur due to osteoporosis. PMID- 29344813 TI - Stroke volume variation and serum creatinine changes during abdominal aortic aneurysm surgery: a time-integrated analysis. AB - BACKGROUND: Patients undergoing abdominal aortic aneurysm (AAA) surgery with suprarenal clamping are at high risk for acute kidney injury (AKI) and major cardiac and cerebrovascular events (MACCE). We aimed to assess whether the stroke volume variation (SVV), a measure of hemodynamic instability, is associated with AKI in hypertensive patients undergoing elective AAA surgery with suprarenal clamping. METHODS: In a cohort of 51 hypertensive patients, we performed serial measurements of SVV (n = 459) and serum creatinine (sCr) (n = 255). AKI was defined according to the KDIGO clinical practice guidelines. Data were analyzed by repeated-measures ANOVA and regression analysis of time-integrated changes of both SVV and sCr. RESULTS: AKI developed in 45% of patients (stage 1: 31%; stage 2: 10%; stage 3: 2%). The diuresis during surgery (beta - 0.29 Z-score 95% [CI - 0.54, - 0.05]; p = 0.02), clamp time (beta 0.29 Z-score [0.05-0.52]; p = 0.02), and time-integrated changes in SVV from baseline to 12 h after surgery (beta 0.31 Z-score [0.03-0.60]; p = 0.03) were independent predictors of the time-integrated changes in sCr from baseline to 48 h after the end of surgery. In a model adjusted for age and sex, patients with AKI had an increased risk for MACCE during a mean follow-up of 3.5 +/- 1.1 years (HR 5.53 [1.52-20.06]; p = 0.004). CONCLUSIONS: SVV increases progressively during and after AAA surgery in subjects who will develop AKI. The increase of SVV precedes and predicts the rise in sCr and is a good discriminator of the development of AKI. AKI is associated with an increased long-term risk for MACCE. PMID- 29344814 TI - Nutritional therapy in autosomal dominant polycystic kidney disease. AB - CKD-related nutritional therapy (NT) is a crucial cornerstone of CKD patients' treatment, but the role of NT has not been clearly investigated in autosomal dominant polycystic kidney disease (ADPKD). Several clinical studies have focused on new pharmacological approaches to delay cystic disease progression, but there are no data on dietary interventions in ADPKD patients. The aim of this paper is to analyze the evidence from the literature on the impact of five nutritional aspects (water, sodium, phosphorus, protein intake, and net acid load) in CKD related ADPKD extrapolating-where information is unavailable-from what occurs in CKD non-ADPKD patients Sodium intake restriction could be useful in decreasing the growth rate of cysts. Although further evidence is needed, restriction of phosphorus and protein intake restriction represent cornerstones of the dietary support of renal non-ADPKD patients and common sense can guide their use. It could be also helpful to limit animal protein, increasing fruit and vegetables intake together with a full correction of metabolic acidosis. Finally, fluid intake may be recommended in the early stages of the disease, although it is not to be prescribed in the presence of moderate to severe reduction of renal function. PMID- 29344815 TI - Comment on: "Genetic Variants and Anterior Cruciate Ligament Rupture: A Systematic Review". PMID- 29344816 TI - Author's Reply to Lv: Comment on: "Genetic Variants and Anterior Cruciate Ligament Rupture: A Systematic Review". PMID- 29344817 TI - The Content of Mercury in Herbal Dietary Supplements. AB - The dietary supplement market in Poland has been growing rapidly, and the number of registered products and their consumption increases steadily. Among the most popular and the easiest to get are herbal supplements, available in any supermarket. The aim of this paper was to investigate the mercury content in the herbal supplements. The dietary supplements that have been examined (24) are available on the Polish market and contain one or more herbal ingredients. Supplements were pulverized in porcelain mortar and identified by AMA 254 atomic absorption spectrometer. The range of variations for all tested supplements was within 0.02-4293.07 MUg/kg. The arithmetic mean of the total result was 193.77 MUg/kg. A higher mercury content then this mean was found in preparations-bamboo shoots and alga Chlorella pyrenoidosa. The studies have shown that mercury is present in every examined herbal supplement, and its content exceeds in two preparations (with bamboo and alga) the permissible limit of 0.10 mg/kg. There were statistically significant differences in the occurrence of mercury depending on the herbal ingredient in the supplement. The lowest content was found in the preparation with Tanacetum parthenium and the highest with bamboo shoots. The mercury content in the tested herbal supplements was statistically significant in the form of a supplement-a tablet and a capsule. Daily, weekly, monthly, and yearly consumption of mercury with examined supplements was calculated-the results did not exceed the PTWI-provisional tolerable weekly intake of mercury. To increase consumer safety, it is imperative to conduct further research on dietary supplements and implement a stricter quality control of the dietary supplements. PMID- 29344818 TI - Dietary Chromium Picolinate Supplementation Affects Growth, Whole-Body Composition, and Gene Expression Related to Glucose Metabolism and Lipogenesis in Juvenile Blunt Snout Bream, Megalobrama amblycephala. AB - An 11-week feeding trial was carried out to investigate the effects of supplemented chromium picolinate (Cr-Pic) on the growth, whole-body composition, and relative mRNA expression related to lipogenesis and glucose metabolism in juvenile blunt snout bream. Seven isonitrogenous and isoenergetic diets with graded Cr supplementation levels were fed to triplicate groups. The final weight (FW), feed conversion ratio (FCR), and specific growth rate (SGR) were improved with increasing dietary Cr supplementation levels up to 0.4 mg/kg, and thereafter showed relatively constant. However, 12.0 mg/kg dietary Cr supplementation decreased growth and feed utilization. Based on SGR and FCR, the optimal dietary Cr supplementation level for the juvenile was estimated to be 0.28 mg/kg. Significantly higher plasma insulin levels were found in juvenile fed diets with 0.4 and 0.8 mg/kg Cr supplementation compared to those fed diet sans supplemented Cr. Plasma glucose levels decreased with increasing dietary Cr supplementation, and the lowest value was remarked in the group added 3.2 mg/kg of Cr. Adding 0.4 0.8 mg/kg Cr enhanced insulin receptor substrate 1 (IRS-1), phosphoinositide-3 kinase (PI3K), and pyruvate kinase (PK) and inhibited expression of phosphoenolpyruvate carboxykinase (PEPCK), glucose-6-phosphatase (G6Pase), and glycogen synthase (GS) mRNA levels. High dietary Cr (12.0 mg/kg) supplementation resulted in high G6Pase and PEPCK expression. The highest content of whole-body lipid was remarked in fish fed with 0.4 mg/kg dietary Cr, which related to the enhanced gene expression related to lipogenesis; thereafter, mRNA levels showed a diminishing trend. These findings indicate that optimum dietary Cr-Pic supplementation has a positive effect on growth and blood glucose homeostasis by modifying the mRNA levels related to glucose metabolism and lipogenesis in juvenile blunt snout bream. PMID- 29344820 TI - Metastases from distant primary tumours on the head and neck: clinical manifestation and diagnostics of 91 cases. AB - PURPOSE: The aim of this study was to evaluate which primary tumours metastasize on the head and neck region, identify the kind of clinical manifestation, the types of diagnostics that should be performed, and prove that the therapy appears possible and useful. PATIENTS: As many as 91 patients with a distant metastasis on the head and neck were enrolled in this retrospective clinical study from January 2004 to September 2016. All the patients were evaluated for clinical symptoms, primary tumour, localization, diagnostics, and surgical procedure. RESULTS: A total of 31 patients had asymptomatic swelling, 27 patients had symptomatic swelling, and nine experienced isolated pain without swelling. Most other symptoms were organ-specific. The most frequent localizations were the orbit (44 metastases), mandible (19), neck region (9), and skin (7). The most common primary tumours were breast carcinoma (44), bronchial carcinoma (12), and renal carcinoma (9). A biopsy was performed on 38 patients, a partial resection was done on 28 patients, extirpation on six patients, and a radical resection on 19 patients. CONCLUSION: Distant metastases on the head and neck are rare and, therefore, pose a challenge for the oncologist and other involved disciplines. Most distant metastases occur within the first five years. Late metastases, especially in breast carcinoma, are still possible after 20 years. A surgical examination should be carried out if the findings are not clear due to multiple differential diagnoses. In particular, surgical options under palliative aspects should be examined. PMID- 29344821 TI - Resistance of four fixation techniques used to treat subcondylar fractures. AB - OBJECTIVE: This study aimed to evaluate the resistance of four fixation techniques used to treat subcondylar fractures. The following techniques were evaluated: fixation with one 4-hole single straight plate; fixation with one 2-mm 4-hole system plate and one 1.5-mm 3-hole system plate; fixation with two 2-mm plates with a 3-hole anterior plate; and fixation with two 2-mm plates with four holes each. STUDY DESIGN: Each fixation technique was subjected to a resistance test. The load values were measured when displacement of 1, 2, and 5 mm was reached. Load values were compared for statistically significant differences using analysis of variance (ANOVA; p < 0.5) and Tukey's test. RESULTS: Statistically significant differences were observed, when the load was applied to the first molar on the side of the fracture. The group treated with a 4-hole, 2 mm, one plate system showed resistance to lower load values than the groups treated with two plates in any combination. CONCLUSIONS: When the fracture was fixed using two plates, regardless of the kind of plates used, no statistically significant difference between the groups was observed. However, two plate systems showed better resistance than one plate systems. PMID- 29344822 TI - Novel oral anticoagulants in the preoperative period: a meta-analysis. AB - The purpose of this study is to evaluate the efficacy and safety of novel oral anticoagulant (NOAC) versus warfarin therapy in patients undergoing different operations. We performed a systematic review of MEDLINE, EMBASE, Cochrane Controlled Trials Register, and reports presented at scientific meetings. The efficacy and safety of NOACs during the perioperative period was compared to that using warfarin. Of the 2652 studies initially reviewed, we identified 9 that included 15,880 patients for the meta-analysis. Compared to warfarin, dabigatran increased the risk of major bleeding (RR 1.37, 95% CI 1.06-1.78, P = 0.02). Apixaban (RR 0.63, 95% CI 0.40-0.99, P = 0.04) reduced thrombotic events. NOAC therapy decreased thrombotic events in patients undergoing non-cardiac surgery (RR 0.68, 95% CI 0.50-0.92, P = 0.02). Compared to warfarin, the administration of NOACs in the perioperative period has the same risk of thromboembolism and major bleeding. But patients undergoing non-cardiac surgery may benefit more from perioperative NOAC therapy. Apixaban may reduce thrombotic events and dabigatran increases the risk of major bleeding during the perioperative period. PMID- 29344823 TI - Long-term visual outcomes of craniopharyngioma in children. AB - Visual function is a critical factor in the diagnosis, monitoring, and prognosis of craniopharyngiomas in children. The aim of this study was to report the long term visual outcomes in a cohort of pediatric patients with craniopharyngioma. The study design is a retrospective chart review of craniopharyngioma patients from a single tertiary-care pediatric hospital. 59 patients were included in the study. Mean age at presentation was 9.4 years old (range 0.7-18.0 years old). The most common presenting features were headache (76%), nausea/vomiting (32%), and vision loss (31%). Median follow-up was 5.2 years (range 1.0-17.2 years). During follow-up, visual decline occurred in 17 patients (29%). On Kaplan Meier survival analysis, 47% of the cases of visual decline occurred within 4 months of diagnosis, with the remaining cases occurring sporadically during follow-up (up to 8 years after diagnosis). In terms of risk factors, younger age at diagnosis, optic nerve edema at presentation, and tumor recurrence were found to have statistically significant associations with visual decline. At final follow-up, 58% of the patients had visual impairment in at least one eye but only 10% were legally blind in both eyes (visual acuity 20/200 or worse or < 20 degrees of visual field). Vision loss is a common presenting symptom of craniopharyngiomas in children. After diagnosis, monitoring vision is important as about 30% of patients will experience significant visual decline. Long-term vision loss occurs in the majority of patients, but severe binocular visual impairment is uncommon. PMID- 29344824 TI - Brucellosis Risk in Urban and Agro-pastoral Areas in Tanzania. AB - Epidemiology of human and animal brucellosis may depend on ecological conditions. A cross-sectional study was conducted to compare prevalence and risk factors of bovine brucellosis, and risky behaviours for the human infection between urban and agro-pastoral areas in Morogoro region, Tanzania. Cattle blood sampling and interviews using a structured questionnaire were conducted with farmers. Rose Bengal test was conducted for the cattle sera, and positive samples were confirmed with competitive ELISA. Farm-level sero-prevalences were 0.9% (1/106, 95% CI 0.0-5.9%) and 52.9% (9/17, 95% CI 28.5-76.1%) in urban and agro-pastoral areas, respectively. The animal-level-adjusted prevalences were 0.2% (1/667, 95% CI 0.0-1.1%) and 7.0% (28/673, 95% CI 5.7-8.4%) in those areas. The final farm level model including both areas found two risk factors: history of abortion in the herd (P < 0.01) and cattle grazing (P = 0.07). The animal-level risk factors in agro-pastoral areas were age (P = 0.04) and history of abortion (P = 0.03). No agro-pastoral farmer knew about Brucella vaccine. Agro-pastoralists generally had poorer knowledge on brucellosis and practiced significantly more risky behaviours for human brucellosis such as drinking raw milk (17.6%, P < 0.01) and blood (35.3%, P < 0.01), and helping cattle birth (100%, P = 0.04) than urban farmers (0, 0 and 79.2%, respectively). Intervention programs through education including both human and animal health particularly targeting agro-pastoralists would be needed. PMID- 29344825 TI - The Voltage-Dependent Anion Channel (VDAC) of Pacific Oysters Crassostrea gigas Is Upaccumulated During Infection by the Ostreid Herpesvirus-1 (OsHV-1): an Indicator of the Warburg Effect. AB - Voltage-dependent anion channel (VDAC) is a key mitochondrial protein. VDAC drives cellular energy metabolism by controlling the influx and efflux of metabolites and ions through the mitochondrial membrane, playing a role in its permeabilization. This protein exerts a pivotal role during the white spot syndrome virus (WSSV) infection in shrimp, through its involvement in a particular metabolism that plays in favor of the virus, the Warburg effect. The Warburg effect corresponds to an atypical metabolic shift toward an aerobic glycolysis that provides energy for rapid cell division and resistance to apoptosis. In the Pacific oyster Crassostrea gigas, the Warburg effect occurs during infection by Ostreid herpesvirus (OsHV-1). At present, the role of VDAC in the Warburg effect, OsHV-1 infection and apoptosis is unknown. Here, we developed a specific antibody directed against C. gigas VDAC. This tool allowed us to quantify the tissue-specific expression of VDAC, to detect VDAC oligomers, and to follow the amount of VDAC in oysters deployed in the field. We showed that oysters sensitive to a mortality event in the field presented an accumulation of VDAC. Finally, we propose to use VDAC quantification as a tool to measure the oyster susceptibility to OsHV-1 depending on its environment. PMID- 29344826 TI - Phytochemical Analysis and Evaluation of the Antioxidant, Anti-Inflammatory, and Antinociceptive Potential of Phlorotannin-Rich Fractions from Three Mediterranean Brown Seaweeds. AB - Phlorotannins, phenolic compounds produced exclusively by seaweeds, have been reported to possess various pharmacological properties. However, there have been few works on these compounds from Mediterranean seaweeds. In this study, we investigated the phytochemical analysis and pharmacological potential of phlorotannin-rich fractions from three brown seaweeds collected along the Tunisia coast: Cystoseira sedoides (PHT-SED), Cladostephus spongeosis (PHT-CLAD), and Padina pavonica (PHT-PAD). Phytochemical determinations showed considerable differences in total phenolic content (TPC) and phlorotannin content (PHT). The highest TPC level (26.45 mg PGE/g dry material (Dm)) and PHT level (873.14 MUg PGE/g Dm) were observed in C. sedoides. The antioxidant properties of these three fractions assessed by three different methods indicated that C. sedoides displayed the highest total antioxidant activity among the three species (71.30 mg GAE/g Dm), as well as the free radical scavenging activity with the lowest IC50 value in both DPPH (27.7 MUg/mL) and ABTS (19.1 MUg/mL) assays. Furthermore, the pharmacological screening of the anti-inflammatory potential of these fractions using in vivo models, in comparison to reference drugs, established a remarkable activity of PHT-SED at the dose of 100 mg/kg; the inhibition percentages of ear edema in mice model and paw edema in rats model were of 82.55 and 81.08%, respectively. The content of malondialdehyde (MDA) in liver tissues has been quantified, and PHT-SED was found to remarkably increase the lipid peroxidation in rat liver tissues. In addition, in two pain mice models, PHT-SED displayed a profound antinociceptive activity at 100 mg/kg and has proved a better analgesic activity when used in combination with the opioid drug, tramadol. PMID- 29344828 TI - Neuroprotective effect of p-coumaric acid in mice with cerebral ischemia reperfusion injuries. AB - Cerebral ischemia reperfusion (IR) is associated with neuronal death, which leads to disability and cognitive decline. The pathomechanism occurs because ischemia is exacerbated during the reperfusion period. Neuronal damage susceptibility depends on the affected brain areas and the duration of ischemia. Prevention and supplementation to neurons may help them endure during IR and further benefit them in rehabilitation. We investigated the protective effect of p-coumaric acid (PC) on cerebral IR injuries in mice. We randomly divided 30 male ICR mice into 3 groups of Sham (received vehicle and not induced IR), Control-IR (received vehicle and induced IR) and PC-IR (received 100 mg/kg PC and induced IR). We orally administered vehicle or 100 mg/kg of p-coumaric acid for 2 weeks before inducing the cerebral IR injuries by using 30 min of a bilateral common carotid artery occlusion followed by a 45-min reperfusion. We induced the IR condition in the Control-IR and PC-IR groups but not the Sham group, and only the PC-IR group received p-coumaric acid. After IR induction, we sacrificed all the mice and collected their brain tissues to evaluate their oxidative statuses, whole brain infarctions and vulnerable neuronal deaths. We studied the whole-brain infarction volume by 2, 3, 5-triethyltetrazoliumchloride staining of sections. We performed a histological investigation of the vulnerable neuronal population in the dorsal hippocampus by staining brain sections with 0.1% cresyl violet. The results indicated that IR caused significant increases in calcium and malondialdehyde (MDA) levels, whole brain infarction volume and hippocampal neuronal death. Pretreatment with p-coumaric acid significantly reduced MDA levels, whole-brain infarction volume and hippocampal neuronal death together and increased catalase and superoxide dismutase activities. We conclude here that pretreating animals with p-coumaric acid can prevent IR-induced brain oxidative stress, infarction size and neuronal vulnerability to death in cerebral IR injuries. PMID- 29344829 TI - Rapid-acting and Regular Insulin are Equal for High Fat-Protein Meal in Individuals with Type 1 Diabetes Treated with Multiple Daily Injections. AB - INTRODUCTION: The fat and protein content can impact late postprandial glycemia; therefore, prolonged insulin boluses for high-fat/-protein meals are recommended for patients with type 1 diabetes on insulin pump therapy. It is not clear how to translate these findings to multiple daily injection (MDI) therapy. We hypothesized that regular insulin with a slower onset and a longer duration of action might be advantageous for such meals. METHODS: Twenty-five patients with well-controlled type 1 diabetes (mean HbA1c 6.8%, 51 mmol/mol, no episodes of hypoglycemia) on MDI therapy, aged 27.9 +/- 4.3 years and well trained in flexible intensive insulin therapy, were given three test breakfasts with the same carbohydrate (CHO) content. The amount of fat and protein was low (LFP) or high (HFP). For LFP meals, patients received a rapid-acting insulin; for HFP meals, a rapid-acting or regular insulin was given in individual doses according to the CHO content and individual insulin-CHO ratios. Postprandial glycemia was determined by 6-h continuous glucose monitoring. RESULTS: Acute postprandial glucose levels measured for 2 h were similar after LFP and two HFP meals (7.8 +/- 2.0, 8.1 +/- 2.1, 8.0 +/- 1.9 mmol/l). Late postprandial glycemia measured from 2 to 6 h was significantly lower after the LFP meal (6.7 +/- 1.8 mmol/l, p < 0.05) than after the HFP meals, but there was no difference between the rapid-acting or regular insulin on HFP days (8.6 +/- 2.6 and 8.9 +/- 2.8 mmol/l, NS). CONCLUSION: The preliminary results of this study indicate no benefit to cover fat-protein meals with regular insulin in individuals with type 1 diabetes treated with MDI. PMID- 29344827 TI - Molecular imaging of cardiac remodelling after myocardial infarction. AB - Myocardial infarction and subsequent heart failure is a major health burden associated with significant mortality and morbidity in western societies. The ability of cardiac tissue to recover after myocardial infarction is affected by numerous complex cellular and molecular pathways. Unbalance or failure of these pathways can lead to adverse remodelling of the heart and poor prognosis. Current clinical cardiac imaging modalities assess anatomy, perfusion, function, and viability of the myocardium, yet do not offer any insight into the specific molecular pathways involved in the repair process. Novel imaging techniques allow visualisation of these molecular processes and may have significant diagnostic and prognostic values, which could aid clinical management. Single photon emission tomography, positron-emission tomography, and magnetic resonance imaging are used to visualise various aspects of these molecular processes. Imaging probes are usually attached to radioisotopes or paramagnetic nanoparticles to specifically target biological processes such as: apoptosis, necrosis, inflammation, angiogenesis, and scar formation. Although the results from preclinical studies are promising, translating this work to a clinical environment in a valuable and cost-effective way is extremely challenging. Extensive evaluation evidence of diagnostic and prognostic values in multi-centre clinical trials is still required. PMID- 29344830 TI - RAP2.6L and jasmonic acid-responsive genes are expressed upon Arabidopsis hypocotyl grafting but are not needed for cell proliferation related to healing. AB - KEY MESSAGE: Jasmonic acid and RAP2.6L are induced upon wounding but are not involved in cell proliferation during healing in Arabidopsis hypocotyls. Plants produce jasmonic acid in response to wounding, but its role in healing, if any, has not been determined. Previously, the jasmonic acid-induced transcription factor, RAP2.6L, related to APETALA 2.6-like, was identified as a spatially expressed factor involved in tissue reunion in partially incised flowering stems of Arabidopsis. In the present study, we investigated the function of JA and RAP2.6L on wound healing using an Arabidopsis hypocotyl-grafting system, in which separated tissues are reattached by vascular tissue cell proliferation. The jasmonic acid-responsive genes AOS and JAZ10 were transiently expressed immediately after grafting. We confirmed that the endogenous content of jasmonic acid-Ile, which is the bioactive form of jasmonic acid, increased in hypocotyls 1 h after grafting. Morphological analysis of the grafted tissue revealed that vascular tissue cell proliferation occurred in a similar manner in wild-type Arabidopsis, the jasmonic acid-deficient mutant aos, the jasmonic acid insensitive mutant coi1, and in Arabidopsis that had been exogenously treated with jasmonic acid. RAP2.6L expression was also induced during graft healing. Because RAP2.6L expression occurred during graft healing in aos and coi1, its expression must be regulated via a jasmonic acid-independent pathway. The rap2.6L mutant and dominant repressor transformants for RAP2.6L showed normal cell proliferation during graft healing. Taken together, our results suggest that JA and RAP2.6L, induced by grafting, are not necessary for cell proliferation process in healing. PMID- 29344833 TI - Violence Against Women in Cambodia: Towards a Culturally Responsive Theory of Change. AB - Almost one in four women in Cambodia is a victim of physical, emotional or sexual violence. This article brings together two seldom connected fields: Theory of Change (ToC) and cultural responsiveness in international development. It applies these approaches to a priority in global health, which is to prevent violence against women (VAW) and, drawing on my research on the epigenesis of VAW in Cambodia, develops an argument on the need for interventions to work with tradition and culture rather than only highlight it in problematic terms. The research draws on an ethnographic study carried out in Cambodia with 102 perpetrators and survivors of emotional, physical and sexual VAW and 228 key informants from the Buddhist and healing sectors. The eight 'cultural attractors' identified in the author's prior research highlight the cultural barriers to acceptance of the current Theory of Change. ToC for VAW prevention in Cambodia seems to assume that local culture promotes VAW and that men and women must be educated to eradicate the traditional gender norms. There is a need for interventions to work with tradition and culture rather than only highlight it in problematic terms. The cultural epigenesis of VAW in Cambodia is an insight which can be used to build culturally responsive interventions and strengthen the primary prevention of VAW. PMID- 29344832 TI - Mitogen activated protein kinase 6 and MAP kinase phosphatase 1 are involved in the response of Arabidopsis roots to L-glutamate. AB - KEY MESSAGE: The function and components of L-glutamate signaling pathways in plants have just begun to be elucidated. Here, using a combination of genetic and biochemical strategies, we demonstrated that a MAPK module is involved in the control of root developmental responses to this amino acid. Root system architecture plays an essential role in plant adaptation to biotic and abiotic factors via adjusting signal transduction and gene expression. L-Glutamate (L Glu), an amino acid with neurotransmitter functions in animals, inhibits root growth, but the underlying genetic mechanisms are poorly understood. Through a combination of genetic analysis, in-gel kinase assays, detailed cell elongation and division measurements and confocal analysis of expression of auxin, quiescent center and stem cell niche related genes, the critical roles of L-Glu in primary root growth acting through the mitogen-activated protein kinase 6 (MPK6) and the dual specificity serine-threonine-tyrosine phosphatase MKP1 could be revealed. In gel phosphorylation assays revealed a rapid and dose-dependent induction of MPK6 and MPK3 activities in wild-type Arabidopsis seedlings in response to L-Glu. Mutations in MPK6 or MKP1 reduced or increased root cell division and elongation in response to L-Glu, possibly modulating auxin transport and/or response, but in a PLETHORA1 and 2 independent manner. Our data highlight MPK6 and MKP1 as components of an L-Glu pathway linking the auxin response, and cell division for primary root growth. PMID- 29344831 TI - Interaction network of core ABA signaling components in maize. AB - KEY MESSAGE: We defined a comprehensive core ABA signaling network in monocot maize, including the gene expression, subcellular localization and interaction network of ZmPYLs, ZmPP2Cs, ZmSnRK2s and the putative substrates. The phytohormone abscisic acid (ABA) plays an important role in plant developmental processes and abiotic stress responses. In Arabidopsis, ABA is sensed by the PYL ABA receptors, which leads to binding of the PP2C protein phosphatase and activation of the SnRK2 protein kinases. These components functioning diversely and redundantly in ABA signaling are little known in maize. Using Arabidopsis pyl112458 and snrk2.2/3/6 mutants, we identified several ABA-responsive ZmPYLs and ZmSnRK2s, and also ZmPP2Cs. We showed the gene expression, subcellular localization and interaction network of ZmPYLs, ZmPP2Cs, and ZmSnRK2s, and the isolation of putative ZmSnRK2 substrates by mass spectrometry in monocot maize. We found that the ABA dependency of PYL-PP2C interactions is contingent on the identity of the PP2Cs. Among 238 candidate substrates for ABA-activated protein kinases, 69 are putative ZmSnRK2 substrates. Besides homologs of previously reported putative AtSnRK2 substrates, 23 phosphoproteins have not been discovered in the dicot Arabidopsis. Thus, we have defined a comprehensive core ABA signaling network in monocot maize and shed new light on ABA signaling. PMID- 29344834 TI - Employment Rates in Flexible Assertive Community Treatment Teams in The Netherlands: An Observational Study. AB - We determined the proportions of clients treated in Flexible Assertive Community Treatment teams who were unemployed and gained employment and who were employed and lost employment. Secondly, we explored the demographical and clinical factors associated with employment. Data were collected during routine outcome monitoring. We calculated differences in employment rates over a year and explored differences in demographic characteristics at baseline between patient groups. Logistic regression analysis was used to estimate the role of clinical predictor variables on employment status. Over time, 10% remained employed, 5% lost their employment, 3% gained employment and 82% remained unemployed. Clients who found employment were younger, more often male, and had significantly fewer psychosocial problems and a higher subjective quality of life during follow-up than those who remained unemployed. Problems with motivation for treatment at baseline were related to losing employment or remaining unemployed. Better implementation of vocational services is very important for increasing the number of clients gaining employment. PMID- 29344835 TI - Genetic Evidence for the Role of a Rice Vacuolar Invertase as a Molecular Sink Strength Determinant. AB - BACKGROUND: Rice is a major crop feeding the majority of the global population, and increasing its sink strength is one of the modes to alleviate the declining availability of food for the rapidly growing world population. We demonstrate a role for an important rice vacuolar invertase isoform, OsINV3, in sink strength determination. RESULTS: OsINV3 mutants showed shorter panicles with lighter and smaller grains, owing to a smaller cell size on the outer and inner surfaces of the palea and lemma as observed by scanning electron microscopy. Further, strong promoter::GUS expression was observed in the palea, lemma and the rachis branches in the young elongating panicles, which supported the role of OsINV3 in cell expansion and thus, in spikelet size and panicle length determination. Size of the spikelet was found to directly influence the grain weight, which was confirmed by the lack of differences in weights of hulled grain for differently segregated alleles in the heterozygous lines. Assessment of field grown mutants not only revealed a drastic reduction in the percentage of ripened grain, 1000 grain weight and final yield, but also significantly reduced partitioning of assimilates to the panicles, whereby the total dry weight remained unaffected. Determination of the non-structural carbohydrate contents revealed a lower hexose to-sucrose ratio in the panicles of the mutants from panicle initiation to 10 days after heading, a stage that identifies as the critical pre-storage phase of grain filling, whereas the starch contents were not affected. In addition, strong promoter::GUS expression was observed in the dorsal end of ovary during the pre storage phase until 6 days after flowering, highlighting a function for OsINV3 in monitoring the initial grain filling stage. CONCLUSIONS: OsINV3 was found to regulate spikelet size by playing a key role in cell expansion, driving the movement of assimilates for grain filling by modulating the hexose-to-sucrose ratio, contributing in grain weight determination and thus, the grain yield. PMID- 29344836 TI - Boost Irradiation Integrated to Whole Brain Radiotherapy in the Management of Brain Metastases. AB - Our retrospective analysis aimed to evaluate the clinical value of dose intensification schemes: WBRT and consecutive, delayed, or simultaneous integrated boost (SIB) in brain metastasis (BM) management. Clinical data and overall survival (OS) of 468 patients with BM from various primaries treated with 10 * 3 Gy WBRT (n = 195), WBRT+ 10 * 2 Gy boost (n = 125), or simultaneously 15 * 2.2 Gy WBRT+0.7 Gy boost (n = 148) during a 6-year period were statistically analysed. Significant difference in OS could be detected with additional boost to WBRT (3.3 versus 6.5 months) and this difference was confirmed for BMs of lung cancer and melanoma and both for oligo- and multiplex lesions. The OS was prolonged for the RPA 2 and RPA3 categories, if patients received escalated dose, 4.0 vs. 7.7 months; (p = 0.002) in class RPA2 and 2.6 vs. 4.2 months; (p < 0.0001) in the class RPA 3 respectively. The significant difference in OS was also achieved with SIB. The shortened overall treatment time of SIB with lower WBRT fraction dose exhibited survival benefit over WBRT alone, and could be applied for patients developing BM even with unfavourable prognostic factors. These results warrant for further study of this approach with dose escalation using the lately available solutions for hippocampus sparing and fractionated stereotactic irradiation. The simultaneous delivery of WBRT with reduced fraction dose and boost proved to be advantageous prolonging the OS with shortened treatment time and reduced probability for cognitive decline development even for patients with poor performance status and progressing extracranial disease. PMID- 29344837 TI - Evaluation of the Profile and Mechanism of Neurotoxicity of Water-Soluble [Cu(P)4]PF6 and [Au(P)4]PF6 (P = thp or PTA) Anticancer Complexes. AB - [Cu(thp)4]PF6, [Cu(PTA)4]PF6, [Au(thp)4]PF6 and [Au(PTA)4]PF6 are phosphane (thp = tris(hydroxymethyl)phosphane; PTA = 1,3,5-triaza-7-phosphaadamantane) copper(I) and gold(I) water-soluble complexes characterized by high anticancer activity in a wide range of solid tumors, often able to overcome drug resistance of platinum based compounds. For these reasons, they have been proposed as a valid alternative to platinum-based chemotherapeutic drugs (e.g., cisplatin and oxaliplatin). In vitro experiments performed on organotypic cultures of dorsal root ganglia (DRG) from 15-day-old rat embryos revealed that copper-based compounds were not neurotoxic even at concentrations higher than the IC50 obtained in human cancer cells while [Au(PTA)4]PF6 was neurotoxic at lower concentration than IC50 in cancer cell lines. The ability of these compounds to hinder the proteasome machinery in DRG neurons was tested by fluorimetric assay showing that the non-neurotoxic copper-based complexes do not inhibit proteasome activity in DRG primary neuron cultures. On the contrary, the neurotoxic complex [Au(PTA)4]PF6, induced a significant inhibition of proteasome activity even at concentrations lower than the IC50 in cancer cells. The proteasome inhibition induced by [Au(PTA)4]PF6 was associated with a significant increase in alpha tubulin polymerization that was not observed following the treatment with copper based compounds. Uptake experiments performed by atomic absorption spectrometry showed that both copper-based complexes and [Au(PTA)4]PF6 are internalized in neuron cultures. In vitro and in vivo preliminary data confirmed copper-based complexes as the most promising compounds, not only for their anticancer activity but also concerning the peripheral neurotoxicity profile. PMID- 29344838 TI - Association between human brucellosis and adverse pregnancy outcome: a cross sectional population-based study. AB - To investigate the association between the incidence of human brucellosis (HB) and adverse pregnancy outcomes (APOs), a population-based, cross-sectional aggregate data study was conducted in Israel between 2010 and 2014. HB-endemic localities were matched by ethnicity, population size and socioeconomic status to localities with a low incidence of HB. We compared APO rates in high-incidence vs low-incidence localities. The primary outcome was intrauterine fetal demise (IUFD). Secondary outcomes were premature birth (less than 37 weeks), early or threatened labour and poor fetal growth. APOs are expressed as events per 1,000 live or dead births. Eleven high-incidence localities, all Arab villages or cities, were matched to 11 low-incidence localities. Localities were well-matched with regard to the matching criteria, fertility indices, health insurance access and education, but were imbalanced geographically. All defined APOs occurred significantly more frequently in the high-incidence localities. The associations translated to an absolute increase of 3.6 cases of IUFD (95% CI 1.6-5.3), 11.7 preterm births (4.8-18.3), 6.6 cases of early or threatened labour (2.2-10.9) and 7 cases of poor fetal growth (3-10.8), per 10,000 live or dead births. Owing to a geographic imbalance between high- and low-incidence localities, we conducted an analysis restricted to Southern localities of Arab Bedouins showing a significant association between yearly HB incidence and IUFD incidence, odds ratio 1.05 (1.03 1.06). HB incidence is epidemiologically linked to serious pregnancy complications. Early detection of infection through active surveillance during pregnancy followed by appropriate treatment should be evaluated as additional public heath strategy in endemic settings. PMID- 29344839 TI - Risk factors of venous thrombo-embolism during cytomegalovirus infection in immunocompetent individuals. A systematic review. AB - Most of the effects and complications of cytomegalovirus (CMV) infection are still unknown, even though its tropism for the endothelium has been extensively investigated. In fact, CMV is suspected to be a cause of venous thrombo-embolism (VTE) since 1974, but there is still no consensus about the management of CMV related thrombosis and how to prevent it. Cytomegalovirus-related thrombosis has been reported mostly in immunocompromised patients, rarely in immunocompetent individuals. In order to identify potential risk factors of CMV-related thrombosis, we performed a systematic review of the literature regarding immunocompetent patients with cytomegalovirus infection and thrombosis. We found 115 cases with a mean age of 37.36 years (SD +/- 16.43 years). Almost half the female patients were assuming EP contraception at the time of the event, and almost half the patients were affected by a coagulation disorder. Interestingly, just two women and four men had no risk factor for thrombosis other than the CMV infection at the time of the event. In conclusion, coagulation disorders and EP contraception have to be taken into a great deal of consideration in patients with CMV infection, since they could be important risk factors for VTE. Knowing the correlation with coagulation disorders, the use of anticoagulation drugs cannot be considered overtreatment. It was not feasible to determine the usefulness of an antiviral treatment. Further studies, even randomized ones, are required to determine the usefulness of antiviral drugs and the real prevalence of CMV-related VTE. PMID- 29344840 TI - Design and Rationale for comParison Between ticagreLor and clopidogrEl on mIcrocirculation in Patients with Acute cOronary Syndrome Undergoing Percutaneous Coronary Intervention (PLEIO) Trial. AB - It has been previously demonstrated that ticagrelor can reduce mortality compared to clopidogrel in acute coronary syndrome (ACS) patients. However, the mechanism for this mortality reduction remains uncertain. The objective of the present study is to assess the impact of chronic ticagrelor treatment on microvascular circulation. A total of 120 participants aged 20-85 years with clinical diagnosis of ACS will be randomized in a 1:1 fashion to the following two groups: ticagrelor 90 mg twice daily; clopidogrel 75 mg once daily. To evaluate the status of microcirculation, the primary end point is coronary microvascular dysfunction measured using an index of microcirculatory resistance (IMR) at 6 months after receiving the study agent. The purpose of this trial is to investigate whether ticagrelor, beyond its antiplatelet efficacy, could improve coronary microcirculation more effectively than clopidogrel for patients with ACS. PMID- 29344841 TI - Association of D-dimer with Plaque Characteristics and Plasma Biomarkers of Oxidation-Specific Epitopes in Stable Subjects with Coronary Artery Disease. AB - D-dimer has emerged as a biomarker of cardiovascular event risk, yet pathophysiological factors associated with plasma D-dimer levels in stable coronary artery disease (CAD) subjects are poorly understood. In 106 stable CAD subjects undergoing intravascular ultrasound with virtual histology (IVUS-VH), we measured D-dimer, lipoprotein(a) (Lp(a)), plasminogen, biomarkers reflecting oxidation-specific epitopes (OSE) such as oxidized phospholipids on apolipoprotein B-100 (OxPL-apoB), OxPL on plasminogen (OxPL-PLG), and autoantibodies to phosphorylcholine-BSA [PC-BSA] and a malondialdehyde [MDA] mimotope. In univariate analysis, D-dimer was positively associated with Lp(a), OxPL-apoB, OxPL-PLG, and coronary artery calcium, and inversely associated with autoantibodies to OSE and plaque fibrosis. D-dimer levels > 500 ng/ml also showed positive association with plaque necrosis. After multivariate analysis, D-dimer remained significantly associated with Lp(a) and plaque calcium. While further studies are needed, results provide evidence that plasma D-dimer levels are associated with levels of OxPLs and IVUS-VH indices linked to plaque erosion and rupture. PMID- 29344842 TI - Reasons for Abortion: Religion, Religiosity/Spirituality and Attitudes of Male Secondary School Youth in South Africa. AB - This study focused on the relationship between religion, religiosity/spirituality (R/S), and attitudes of a sample of South African male secondary school youth toward women's rights to legal abortion in different situations. We distributed 400 self-administered questionnaires assessing the main variables (attitudes toward reasons for abortion and R/S) to the target sample in six different secondary schools in KwaZulu-Natal, South Africa. The responses of a final sample of 327 learners were then analyzed using the Statistical Package for the Social Sciences (SPSS) software. The findings revealed that religion and R/S play a role in the youths' attitudes toward abortion. While the Hindu subsample indicated higher overall support across the different scenarios, the Muslim subsample reported greater disapproval than the other groups on 'Elective reasons' and in instances of 'Objection by significant others.' The Christian youth had the most negative attitudes to abortion for 'Traumatic reasons' and 'When women's health/life' was threatened. Across the sample, higher R/S levels were linked with more negative attitudes toward reasons for abortion. PMID- 29344843 TI - Hepatocellular Carcinoma Spreading Through the Round Ligament. PMID- 29344844 TI - Response to: "The Role of Bundle Size for Preventing Surgical Site Infections after Colorectal Surgery: Is More Better?" PMID- 29344845 TI - Two Cases of Dermatophytic Granuloma Successfully Treated with Terbinafine. AB - Dermatophytic granuloma, also called Majocchi's granuloma (MG), is an uncommon infection of the dermis and subcutaneous tissues that can occur in both healthy and immunosuppressed hosts. We present two cases of MG with different clinical features. Both patients had satisfactory relief after treatment with terbinafine. PMID- 29344846 TI - Evaluation of psychosocial and biological parameters in women seeking for a caesarean section and women who are aiming for vaginal delivery: a cross sectional study. AB - PURPOSE: To investigate psychosocial and biological parameters that may influence decision-making concerning the mode of delivery in women with caesarean section on maternal request (CSMR). METHODS: Two hundred and two women were enrolled prospectively. The study sample (n = 93) consisted of women who aimed for CSMR, the control sample were women who seeked for vaginal delivery (n = 109). Parturients of both samples were enrolled during the pre-birth counselling at the delivery room at the University Medical Centre Mannheim, University Heidelberg, Germany. Women completed standardised questionnaires regarding psychosocial burden (SCL-R 90), fear of childbirth (W-DEQ) and anxiety (STAI), personality structure (HEXACO-Pi-R), and ambiguity tolerance (PFI, PNS, and NFC), social support (F-SozU) as well as one questionnaire assessing demographic parameters and further factors potentially influencing their choice of the mode of delivery. Hair cortisol concentration as a marker for chronic psychological stress and pressure pain threshold with a pressure algometer was assessed. RESULTS: Women in the CSMR sample had less social support (F-SozU: 2.99 +/- 0.52 vs. 3.12 +/- 0.32; p = 0.043) and were less educated (high school or university degree: 37 vs. 71%, p = 0.001) compared to parturients of the control sample. Women who underwent CSMR were less open-minded (HEXACO-Pi-R: 3.08 +/- 0.57 vs. 3.26 +/- 0.50; p = 0.016) and less extroverted (HEXACO-Pi-R: 3.34 +/- 0.36 vs. 3.46 +/- 0.41; p = 0.041). The control collective showed higher scores in negative appraisal of the birth ('W-DEQ-negative appraisal': 2.5 +/- 0.8 vs. 2.2 +/- 0.9; p = 0.006), whereas "lack of positive anticipation" was higher in the study collective ('W DEQ-lack of positive anticipation': 3.2 +/- 1.2 vs. 2.8 +/- 0.8; p = 0.015). The study collective had higher pressure pain threshold values (5.07 +/- 2.06 vs. 4.35 +/- 1.38; p = 0.007), while no significant differences were observed in hair cortisol concentration comparing both groups (5.0 +/- 11.4 vs. 4.9 +/- 8.3; p = 0.426). The majority of the control collective (80%) had chosen the vaginal route as their mode of delivery before pregnancy, whereas only 21% of the women in the study collective decided to undergo CSMR before conception. The advice of social sources including both medical and non-medical aspects was rated less important in the study sample, with significant differences indicating a lower relevance of counsel from friends (p = 0.002) and midwives (p < 0.001). CONCLUSION: Women who inquired a CSMR had lower social support, were less educated, more anxious, and had a lower sensitivity for physical pain compared to women seeking for spontaneous delivery. This should be considered when counselling women requiring CSMR and could be leverage points to intervene to reduce the continuously increasing CSMR rate. PMID- 29344848 TI - Current status and future possibilities of molecular genetics techniques in Brassica napus. AB - As PCR methods have improved over the last 15 years, there has been an upsurge in the number of new DNA marker tools, which has allowed the generation of high density molecular maps for all the key Brassica crop types. Biotechnology and molecular plant breeding have emerged as a significant tool for molecular understanding that led to a significant crop improvement in the Brassica napus species. Brassica napus possess a very complicated polyploidy-based genomics. The quantitative trait locus (QTL) is not sufficient to develop effective markers for trait introgression. In the coming years, the molecular marker techniques will be more effective to determine the whole genome impairing desired traits. Available genetic markers using the single-nucleotide sequence (SNP) technique and high throughput sequencing are effective in determining the maps and genome polymorphisms amongst candidate genes and allele interactions. High-throughput sequencing and gene mapping techniques are involved in discovering new alleles and gene pairs, serving as a bridge between the gene map and genome evaluation. The decreasing cost for DNA sequencing will help in discovering full genome sequences with less resources and time. This review describes (1) the current use of integrated approaches, such as molecular marker technologies, to determine genome arrangements and interspecific outcomes combined with cost-effective genomes to increase the efficiency in prognostic breeding efforts. (2) It also focused on functional genomics, proteomics and field-based breeding practices to achieve insight into the genetics underlying both simple and complex traits in canola. PMID- 29344847 TI - The effect of surgical management of endometrioma on the IVF/ICSI outcomes when compared with no treatment? A systematic review and meta-analysis. AB - OBJECTIVE: To assess the impact of surgical management of endometrioma on the outcome of assisted reproduction treatment (ART). DESIGN: A systematic review and meta-analysis. SETTING: Department of reproductive medicine at teaching university hospital, UK. PATIENTS: Subfertile women with endometrioma undergoing ART. INTERVENTIONS: Surgical removal of endometrioma or expectant management. MAIN OUTCOME MEASURES: Clinical pregnancy rate, pregnancy rate, live birth rate, number of oocytes retrieved and number of embryos available and ovarian response to gonadotrophins. RESULTS: An extensive search of electronic databases for articles published from inception to September 2016 yielded 11 eligible studies for meta-analysis. Meta-analysis was conducted comparing surgery versus no treatment of endometrioma. There were no significant differences in pregnancy rate per cycle, clinical pregnancy rate and live birth rate between women who underwent surgery for endometrioma and those who did not. CONCLUSION: Current evidence suggests that women with endometriosis-related infertility have similar cycle outcomes to other patients going through ART. It is pertinent for clinicians to assess the risks of surgical intervention on ovarian reserve prior to initiating therapy. PMID- 29344849 TI - A simple protocol for transfecting human mesenchymal stem cells. AB - OBJECTIVES AND RESULTS: Mesenchymal stromal cells (MSCs) are potential targets for cell and gene therapy-based approaches against a variety of different diseases. The MSCs from bone marrow are a promising target population as they are capable of differentiating along multiple lineages and have significant expansion capability. These characteristics make them strong candidates for delivering genes and restoring organ systems function. However, as other primary cells, MSCs are difficult to transfect. In order to standardize a simple protocol for transfection of MSCs, we conducted a series of experiments and achieved a protocol that does not require the use of viral particles or specific expensive equipment. CONCLUSION: MSCs transfection at early passages using a ratio lipid/DNA of 3.0 uL/ug with Lipofectamine 3000(r) yields good transfection efficiencies for human MSCs (up to 26%) and is rapid, simple, and safe. PMID- 29344850 TI - HuR facilitates cancer stemness of lung cancer cells via regulating miR-873/CDK3 and miR-125a-3p/CDK3 axis. AB - OBJECTIVES: To study the roles and mechanisms of HuR in cancer stem cell maintenance of lung cancer. RESULTS: HuR expression was increased in tumor spheres of lung cancer cells. Knockdown of HuR suppressed spheroid formation and size, inhibited the expression of stemness-related marker, Oct4, Nanog and ALDH in lung cancer cells. Importantly, HuR and CDK3 expressions were increased in lung cancer tissues compared with normal adjacent tissues, and positively correlated. Mechanistically, HuR directly bound to CDK3, and increased CDK3 mRNA stability and expression. Additionally, miR-873 or miR-125a-3p attenuated the promotion of HuR on CDK3 expression and lung cancer stemness. Furthermore, HuR facilitated lung cancer stemness dependent on CDK3 expression. miR-873 or miR 125a-3p level was negatively correlated with HuR and CDK3 expression levels in lung cancer tissues. CONCLUSIONS: HuR facilitates lung cancer stemness via regulating miR-873/CDK3 and miR-125a-3p/CDK3 axis. PMID- 29344851 TI - The evolution of CRISPR/Cas9 and their cousins: hope or hype? AB - Clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system allows biologists to edit genomic DNA of any cell in precise and specific way, entailing great potential for crop improvement, drug development and gene therapy. The system involves a nuclease (Cas9) and a designed guide RNA that are involved in wide range of applications such as genome modification, transcriptional modulation, genomic loci marking and RNA tracking. The limitation of the technique, in view of resistance of thymidine-rich genome to Cas9 cleavage, has now been overcome by the use of Cpf1 nuclease. In this review, we present an overview of CRISPR nucleases (Cas9 or Cpf1) with particular emphasis on human genome modification and compare their advantages and limitations. Furthermore, we summarize some of the pros and cons of CRISPR technology particularly in human therapeutics. PMID- 29344852 TI - Laser Capture Microdissection: Insights into Methods and Applications. AB - Laser capture microdissection is a non-molecular, minimally disruptive method to obtain cytologically and/or phenotypically defined cells or groups of cells from heterogeneous tissues. Its advantages include efficient rapid and precise procurement of cells. The potential disadvantages include time consuming, expensive, and limited by the need for a pathologist for recognition of distinct subpopulations within a specified sample. Overall it is versatile allowing the preparation of homogenous isolates of specific subpopulations of cells from which DNA/RNA or protein can be extracted for RT-PCR, quantitative PCR, next-generation sequencing, immunoblot blot analyses, and mass spectrometry. PMID- 29344853 TI - Laser Microdissection-Based Microproteomics of Formalin-Fixed and Paraffin Embedded (FFPE) Tissues. AB - Laser microdissection-based proteomics on formalin-fixed and paraffin-embedded tissues is usually performed from relatively large tissue areas or pools of multiple tissue pieces. However, several molecular pathology studies require working on very limited amounts of tissue. This is for example the case when very early cancer lesions have to be handled. Hereby, we present a method for the processing of very small pieces of formalin-fixed and paraffin-embedded tissues for proteomic purposes. This approach is designed in order to avoid sample loss during technical processing and to optimize the digestion of tissue areas containing as little as 2700 cells. PMID- 29344854 TI - Laser Microdissection Workflow for Isolating Nucleic Acids from Fixed and Frozen Tissue Samples. AB - Laser Capture Microdissection has earned a permanent place among modern techniques connecting histology and molecular biology. Laser Capture Microdissection has become an invaluable tool in medical research as a means for collection of specific cell populations isolated from their environment. Such genomic sample enrichment dramatically increases the sensitivity and precision of downstream molecular assays used for biomarker discovery, monitoring disease onset and progression, and in the development of personalized medicine. The diversity of research targets (cancerous and precancerous lesions in clinical and animal research, cell pellets, rodent embryos, frozen tissues, archival repository slides, etc.) and scientific objectives present a challenge in establishing standard protocols for Laser Capture Microdissection. In the present chapter, we share our experiences in design and successful execution of numerous diverse microdissection projects, and provide considerations to be taken into account in planning a microdissection study. Our workflow and protocols are standardized for a wide range of animal and human tissues and adapted to downstream analysis platforms. PMID- 29344855 TI - Protocol for the Analysis of Laser Capture Microdissected Fresh-Frozen Tissue Homogenates by Silver-Stained 1D SDS-PAGE. AB - The heterogeneity present in solid tumors adds significant difficulty to scientific analysis and improved understanding. Fundamentally, solid tumor formation consists of cancer cells proper along with stromal elements. The burgeoning malignant process is dependent upon modified stromal elements. Collectively, the stroma forms an essential microenvironment, which is indispensable for the survival and growth of the malignant neoplasm. This cellular heterogeneity makes molecular profiling of solid tumors via mass spectrometry (MS)-based proteomics a daunting task. Laser capture microdissection (LCM) is commonly used to obtain distinct histological cell types (e.g., tumor parenchymal cells, stromal cells) from tumor tissue and attempt to address the tumor heterogeneity interference with downstream liquid chromatography (LC) MS analysis. To provide optimal LC-MS analysis of micro-scale and/or nano-scale tissue sections, we modified and optimized a silver-stained one-dimensional sodium dodecyl sulfate polyacrylamide gel electrophoresis (1D-SDS-PAGE) protocol for the LC-MS analysis of LCM-procured fresh-frozen tissue specimens. Presented is a detailed in-gel digestion protocol adjusted specifically to maximize the proteome coverage of amount-limited LCM samples, and facilitate in-depth molecular profiling. Following LCM, targeted tissue sections are further fractionated using silver-stained 1D-SDS-PAGE to resolve and visualize tissue proteins prior to in-gel digestion and subsequent LC-MS analysis. PMID- 29344856 TI - Next-Generation Sequencing Analysis of Laser-Microdissected Formalin-Fixed and Paraffin-Embedded (FFPE) Tissue Specimens. AB - In recent years, next-generation sequencing (NGS) became widely used in molecular pathology. Comprehensive mutational profiling improved diagnosis and prognosis, as well as the identification of therapeutically relevant genetic alterations. However, the vast majority of studies analyzing tissue samples use DNA extracted from bulk tissue or only manually microdissected specimens. Laser-assisted microdissection offers the possibility of isolating morphologically defined small tissue compartments (like individual glands) or even of single cells for further molecular analysis. Even formalin-fixed paraffin-embedded (FFPE) tissue specimens can be used for laser-assisted microdissection. Combining these two innovative powerful methodological approaches provides invaluable insights into the genetic profile of any cell type and tissue compartment of interest, contributing to a better understanding of fundamental biological processes and disease-specific mechanisms.In this chapter, a detailed protocol is provided for microdissection of human mammary adenomyoepithelioma tissue specimens and subsequent targeted resequencing of a panel of cancer-related genes using IonTorrent/PGM technology. PMID- 29344857 TI - Adaptation of Laser Microdissection Technique to Nanostring RNA Analysis in the Study of a Spontaneous Metastatic Mammary Carcinoma Mouse Model. AB - The mouse model characterized by spontaneous lung metastasis from JygMC (A) cells closely resembles the human triple negative breast cancer (TNBC) subtype. The primary tumors morphologically present both epithelial and spindle-like cells, but metastases in lung parenchyma display only adenocarcinoma properties. In the study of molecular signatures, laser capture microdissection (LCM) on frozen tissue sections was used to separate the following regions of interest: the epithelial-mesenchymal transition (EMT), mesenchymal-epithelial transition (MET), carcinoma, lung metastases, normal mammary gland and normal lung parenchyma. NanoString was selected for the study of molecular signatures in LCM targets as a reliable downstream gene expression platform allowing analysis of tissue lysates without RNA extraction and amplification. This chapter provides detailed protocols for the collection of tissue, LCM sample preparation and dissection, production of lysates, extraction, and quality control of RNA for NanoString analysis, as well as the methodology of Nanostring gene expression profiling experiment. PMID- 29344858 TI - Laser Capture Microdissection as a Tool to Study the Mucosal Immune Response in Celiac Disease. AB - Laser capture microdissection (LCM) is a powerful tool for selection and isolation of single cells or compartments from complex primary tissues to perform molecular analyses. Celiac disease is a genetic autoimmune disorder where the ingestion of gluten leads to damage in the small intestine. Increased intraepithelial lymphocytes and the presence of the lamina propria inflammatory infiltrate of the duodenal mucosa is a common part of the disease. These cells promote inflammatory processes through the release of cytokines. Here, we describe the use of LCM and real-time quantitative PCR (RT-qPCR) to analyze cytokine profile information in distinct duodenal mucosa tissue compartments of celiac patients. PMID- 29344859 TI - Laser Capture Microdissection and Isolation of High-Quality RNA from Frozen Endometrial Tissue. AB - Laser capture microdissection (LCM) allows expression profiling of specific cell populations within tissues. However, isolation of high-quality RNA from laser capture microdissected frozen tissue is beset by problems arising from intrinsic tissue RNase activity. Herein, we describe an optimized staining/LCM/RNA extraction protocol developed for the isolation of epithelial RNA from frozen tissue sections using human endometrial cancer as a model tissue. This method combines excellent, reproducible visualization of tissue morphology with the isolation of high-integrity RNA suitable for downstream applications such as expression microarray analysis. We present quantitative and qualitative RNA data obtained from >200 endometrial epithelial samples (normal, hyperplastic, and cancerous), where 92% of samples had RIN values of 7 and above and highlight common pitfalls faced by investigators. This method should also be broadly applicable to a range of other tissue types. PMID- 29344860 TI - Laser Microdissection for Human Papillomavirus (HPV) Genotyping Attribution and Methylation Pattern Analyses of Squamous Intraepithelial Lesions. AB - Human papillomavirus (HPV) is a nearly ubiquitous infectious organism. It is estimated that 80% of sexually active adults will be exposed to anogenital HPVs in their lifetime, and detection of multiple genotypes in an anogenital sample is common. Detection and genotyping of HPV is usually performed by DNA testing, and less frequently by mRNA testing. HPV genotype testing and characterization of DNA methylation patterns of HPV-related lesions can provide important biological, epidemiological, and potentially relevant clinical information in individuals and populations. The use of laser capture microdissection to isolate cells within a specific lesion allows for very precise molecular characterization and hence causal attribution. This chapter describes detailed protocols for the capture of lesion-specific tissue from formalin-fixed, paraffin-embedded (FFPE) biopsy tissue, and downstream DNA testing for lesion-specific HPV genotype and their methylation patterns. PMID- 29344861 TI - Laser Capture Microdissection and Transcriptional Analysis of Sub-Populations of the Osteoblast Lineage from Undecalcified Bone. AB - Transcriptional analysis of tissue samples is a useful and widely applied approach to provide insight into the molecular mechanisms engaged in response to phenotypic changes or external stimuli. We describe a method that overcomes the technical challenges associated with the application of Laser Capture Microdissection to undecalcified bone enabling us to collect high-quality bone tissue with maintained cellular morphology that is suitable for cryosectioning, fixation, and cutting. Using this method, we obtain samples enriched for specific cell types from the mature osteoblast lineage (osteoblasts, lining cells, i.e., quiescent osteoblasts, and osteocytes). RNA is well preserved and following extraction and amplification can be used as input to both low and high-throughput RNA analysis formats. PMID- 29344862 TI - Cell Type-Specific Laser Capture Microdissection for Gene Expression Profiling in the Human Brain. AB - Cell type-specific laser microdissection technologies in combination with molecular techniques to determine gene expression profiles have become powerful tools to gain insight into the neurobiological basis of neural circuit disturbances in various neurologic or psychiatric diseases. To identify specific cell populations in human postmortem brain tissue, one can use the inherent properties of the cells, such as pigmentation and morphology or their structural composition through immunohistochemistry (IHC). Here, we describe the isolation of homogeneous neurons and oligodendrocytes and the extraction of high-quality RNA from these cells in human postmortem brain using a combination of rapid IHC, Nissl staining, or simple morphology with Laser Capture Microdissection (LCM), or Laser Microdissection (LMD). PMID- 29344863 TI - The Isolation of Pure Populations of Neurons by Laser Capture Microdissection: Methods and Application in Neuroscience. AB - In mammals, the central nervous system (CNS) is constituted of various cellular elements, posing a challenge to isolating specific cell types to investigate their expression profile. As a result, tissue homogenization is not amenable to analyses of motor neurons profiling as these represent less than 10% of the total spinal cord cell population. One way to tackle the problem of tissue heterogeneity and obtain meaningful genomic, proteomic, and transcriptomic profiling is to use laser capture microdissection technology (LCM). In this chapter, we describe protocols for the capture of isolated populations of motor neurons from spinal cord tissue sections and for downstream transcriptomic analysis of motor neurons with RT-PCR. We have also included a protocol for the immunological confirmation that the captured neurons are indeed motor neurons. Although focused on spinal cord motor neurons, these protocols can be easily optimized for the isolation of any CNS neurons. PMID- 29344864 TI - Laser Capture Microdissection in Traumatic Brain Injury Research: Obtaining Hippocampal Subregions and Pools of Injured Neurons for Genomic Analyses. AB - The methods presented here are based on our laboratory's 15 years of experience using laser capture microdissection to obtain samples for the study of gene expression after traumatic brain injury (TBI) using a well-established rat model of experimental TBI. Here, we describe how to use the ArcturusXT laser capture microdissection system to capture swaths of specific regions of the rat hippocampus as well as specific neuronal populations defined by Fluoro-Jade C staining. Staining with Fluoro-Jade C identifies a neuron that is in the process of degeneration. We have optimized our protocols for Fluoro-Jade C tissue staining and laser capture microdissection to maintain RNA integrity which is essential for a variety of downstream applications, such as microarray, PCR array, and quantitative real-time PCR analyses. PMID- 29344865 TI - Isolation of Distinct Types of Neurons from Fresh Brain Tissue Using Laser Microdissection in Combination with High-Performance Liquid Chromatography-Mass Spectrometry. AB - Humans age and the ageing process affects cells in all areas of the human body, including nerve cells within the brain. With advancing age there is also a rise in the probability of developing a neurodegenerative disorder such as, e.g., amyotrophic lateral sclerosis, Huntington's disease, Parkinson's disease, or Alzheimer's disease. In all these age-related neurodegenerative disorders, distinct neuron populations within specific brain regions are primarily affected. For example, Parkinson's disease is characterized by a slowly progressive degeneration of dopaminergic neurons in the substantia nigra whereas the entorhinal cortex is first affected in Alzheimer's disease. In patients suffering from Huntington's disease, neurons in both striatum and cortex undergo substantial cell loss and in amyotrophic lateral sclerosis the neurodegeneration arises from the spinal cord and the motor cortex. For the investigation of the differences in neuronal vulnerability, it is important to examine the protein expression pattern in these specific neural populations. By this, conclusions about the origination process of these diseases can be achieved. In order to obtain this objective, specific isolation of distinct neurons from the surrounding brain tissue is indispensable. However, discrimination as well as isolation of distinct types of neurons can be challenging, due to the brain tissue's complexity. With traditional methods such as the homogenization of tissue samples, a specific isolation of single neuron populations is not feasible because homogenization results into a mixture containing all cell types. Laser microdissection can overcome this technical limitation. First, this method enables visualization of tissues via a microscopic unit and therefore an enhanced discrimination of different brain cells. Second, a laser device guarantees a contact-free and consequently a contamination-free separation of distinct neurons from the surrounding brain tissue. In the following, we present a detailed protocol that includes a workflow for the isolation and analysis of neurons from freshly frozen post mortem human brain tissue samples. During this procedure, the brain tissue is sectioned, stained, laser microdissected, and ultimately analyzed by high-performance liquid chromatography-mass spectrometry. PMID- 29344866 TI - Immuno-Guided Laser-Capture Microdissection of Glial Cells for mRNA Analysis. AB - Laser-capture microdissection (LCM) allows for retrieval of specific cell populations in situ. By combining immunofluorescent labeling with LCM, mRNAs can be probed by qRT-PCR for determining in situ gene expression during health and disease. This approach permits obtaining and analyzing histologically enriched cell populations in a tissue that can be hardly obtained from other methods such as white matter astrocytes from rodents or any individual cell population from archival human or rodent brain tissues. Herein, we present our methodology of laser-captured mouse spinal cord white matter astrocytes, which can be adapted for any cell type in CNS tissue and low RNAse containing tissues. The methods presented with an emphasis on tips and advices include the cryostat section preparation from snap-frozen tissue, an adapted immunofluorescent labeling, a brief overview of LCM using a UV-based technology with polyethylene membrane glass slides, procedures for direct use of RNA from lysis buffer vs. column-based purified RNA, RNA quality/quantity assessment, the reverse transcription and preamplification steps used before real-time qPCR analysis. PMID- 29344867 TI - Immuno-Laser-Capture Microdissection for the Isolation of Enriched Glial Populations from Frozen Post-Mortem Human Brain. AB - Laser-capture microdissection (LCM) has revolutionized the isolation of defined regions and specific cell populations from human tissue. This approach used in combination with immunohistochemistry (immuno-LCM) has become a valuable method for isolating individual cell-types from a complex heterogeneous population. Here, we describe the detailed methodology required for the isolation of enriched populations of GFAP+ astrocytes, OSP+ oligodendrocytes, and CD68+ microglia from frozen post-mortem human central nervous system tissue using immuno-LCM. PMID- 29344868 TI - Laser-Capture Microdissection for the Analysis of Rat and Human Spinal Cord Ependyma by qPCR. AB - In the last few decades many efforts have been dedicated to decipher the nature and regenerative potential of neurogenic niches and endogenous stem cells after damage of the central nervous system. In the spinal cord, it has been largely focused on the ependymal region, which hosts neural precursors/stem cells (NSC) in rodents but differs between species and ages. In the current chapter, we detail our protocol to study the gene expression profile of this region using fresh frozen blocks of rat and human post-mortem spinal cords. We describe how to prepare and process those tissues, how to identify and dissect the ependymal region using Laser-Capture Microdissection (LCMD), and how to isolate and amplify RNA with different integrity states to finally obtain enough material for performing gene expression assays using Taqman(r) Low Density Arrays. LCMD technique maintains tissue integrity allowing for subsequent analysis without manipulation steps that may alter molecular properties of cells and the eventual loss of delicate cell types in comparison with other approaches that require previous disaggregation of the tissue and cell manipulation before isolation. PMID- 29344869 TI - Isolation of Amyloid Plaques and Neurofibrillary Tangles from Archived Alzheimer's Disease Tissue Using Laser-Capture Microdissection for Downstream Proteomics. AB - Here, we describe a new method that allows localized proteomics of amyloid plaques and neurofibrillary tangles (NFTs), which are the two pathological hallmarks of Alzheimer's disease (AD). Amyloid plaques and NFTs are visualized using immunohistochemistry and microdissected from archived, formalin-fixed paraffin-embedded (FFPE) human tissue samples using laser-capture microdissection. The majority of human tissue specimens are FFPE; hence the use of this type of tissue is a particular advantage of this technique. Microdissected tissue samples are solubilized with formic acid and deparaffinized, reduced, alkylated, proteolytically digested, and desalted. The resulting protein content of plaques and NFTs is determined using label-free quantitative LC-MS. This results in the unbiased and simultaneous quantification of ~900 proteins in plaques and ~500 proteins in NFTs. This approach permits downstream pathway and network analysis, hence providing a comprehensive overview of pathological protein accumulation found in neuropathological features in AD. PMID- 29344870 TI - Cell-Specific RNA Quantification in Human SN DA Neurons from Heterogeneous Post mortem Midbrain Samples by UV-Laser Microdissection and RT-qPCR. AB - Cell specificity of gene expression analysis is from particular relevance when the abundance of target cells is not homogeneous in the compared tissue samples, like it is the case, e.g., when comparing brain tissues from controls and in neurodegenerative disease states. While single-cell gene expression profiling is already a methodological challenge per se, it becomes even more prone to artifacts when analyzing individual cells from human post-mortem samples. Not only because human samples can never be matched as precisely as those from animal models, but also, because the RNA-quality that can be obtained from human samples usually displays a high range of variability. Here, we detail our most actual method for combining contact-free UV-laser microdissection (UV-LMD) with reverse transcription and quantitative PCR (RT-qPCR) that addresses all these issues. We specifically optimized our protocols to quantify and compare mRNA as well as miRNA levels in human neurons from post-mortem brain tissue. As human post-mortem tissue samples are never perfectly matched (e.g., in respect to distinct donor ages and RNA integrity numbers RIN), we refined data analysis by applying a linear mixed effects model to RT-qPCR data, which allows dissecting and subtracting linear contributions of distinct confounders on detected gene expression levels (i.e., RIN, age). All these issues were considered for comparative gene expression analysis in dopamine (DA) midbrain neurons of the Substantia nigra (SN) from controls and Parkinson's disease (PD) specimens, as the preferential degeneration of SN DA neurons in the pathological hallmark of PD. By utilizing the here-described protocol we identified that a variety of genes-encoding for ion channels, dopamine metabolism proteins, and PARK gene products-display a transcriptional dysregulation in remaining human SN DA neurons from PD brains compared to those of controls. We show that the linear mixed effects model allows further stratification of RT-qPCR data, as it indicated that differential gene expression of some genes was rather correlated with different ages of the analyzed human brain samples than with the disease state. PMID- 29344871 TI - Laser-Capture Microdissection for Layer-Specific Analysis of Enteric Ganglia. AB - The enteric nervous system (ENS) is the division of the autonomic nervous system that innervates the gastrointestinal (GI) tract and controls central intestinal functions such as peristalsis and fluid movement. Enteric nerve cell bodies (neurons and glia) are predominantly organized in ganglionated networks that are present along the entire length of the GI tract in multiple tissue layers. Most cell bodies are organized in the myenteric plexus allocated between the longitudinal and the circular muscle layers or in the submucosal plexus between muscle tissue and mucosa. The site-specific characteristics of these enteric nerve cells have traditionally been analyzed via imaging techniques. Laser capture microdissection (LCM) offers the prospect of site-specifically analyzing the gene expression profiles of these different subpopulations. This protocol addresses critical aspects of handling intestinal tissue for ENS dissection, such as the optimal quick-staining procedure, suitable laser settings, and limits of tissue material required to successfully dissect and analyze tissue layers for gene expression. PMID- 29344872 TI - A Laser Microdissection-Liquid Chromatography-Tandem Mass Spectrometry Workflow for Post-mortem Analysis of Brain Tissue. AB - Improved speed and sensitivity of mass spectrometry allow the simultaneous quantification of high numbers of proteins from increasingly smaller quantities of tissue sample. Quantitative data of the proteome is highly valuable for providing unbiased information on, for example, protein expression changes related to disease or identifying related biomarkers. In brain diseases the affected area can be small and pathogenic events can be related to a specific cell type in an otherwise heterogeneous tissue type. An emerging approach dedicated to analyzing this type of samples is laser micro-dissection (LMD) combined with LC-MS/MS into a single workflow. In this chapter, we describe different options for isolating tissue suitable for LC-MS/MS analysis. PMID- 29344873 TI - Laser-Capture Microdissection and RNA Extraction from Perfusion-Fixed Cartilage and Bone Tissue from Mice Implanted with Human iPSC-Derived MSCs in a Calvarial Defect Model. AB - Laser-capture microdissection (LCM) coupled to downstream RNA analysis poses unique difficulties for the evaluation of mineralized tissues. A rapid protocol was thus developed to enable sufficient integrity of bone and cartilage tissue for reliable sectioning, while minimizing RNA loss associated with prolonged decalcification and purification steps. Specifically, the protocol involves pump assisted, cardiac perfusion-fixation with paraformaldehyde, and moderate digestion of LCM-acquired tissue with proteinase K followed by DNase treatment and separation of RNA using magnetic beads. Reverse transcription and cDNA synthesis are performed immediately after RNA purification, without need for further protein removal. PMID- 29344874 TI - Laser Capture Microdissection-Based RNA-Seq of Barley Grain Tissues. AB - Spatiotemporal patterning throughout the plant body depends to a large degree on cell- and tissue-specific expression of genes. Subsequently, for a better understanding of cell and tissue differentiation processes during plant development it is important to conduct transcript analyses in individual cells or tissue types rather than in bulk tissues. Laser capture microdissection (LCM) provides a useful method for isolating specific cell types from complex tissue structures for downstream applications. Contrasting to mammalian cells, the texture of plant cells is more critical due to hard, cellulose-rich cell walls, large vacuoles, and air spaces which complicates tissue preparation and extraction of macromolecules, like DNA and RNA. In particular, developing barley seeds (i.e. grains) depict cell types with differences in osmomolarity (meristematic, differentiating and degenerating tissues) and contain high amounts of the main storage product starch. In this study, we report about methods allowing tissue-specific transcriptome profiling by RNA-seq of developing barley grain tissues from low-input RNA amounts. Details on tissue preparation, laser capture microdissection, RNA isolation, and linear mRNA amplification to produce high-quality samples for Illumina sequencing are provided. Particular emphasis was placed on the influence of the mRNA amplification step on the transcriptome data and the fidelity of deduced expression levels obtained by the developed methods. Analysis of RNA-seq data confirmed sample processing as a highly reliable and reproducible procedure that was also used for transcriptome analyses of different tissue types from barley plants. PMID- 29344875 TI - Development of a Prognostic Prediction Model to Determine Severe Dengue in Children. AB - OBJECTIVE: To develop a prognostic prediction model using the seven warning signs highlighted by WHO revised Dengue fever classification 2009 to determine severe dengue in children. METHODS: In this prospective analytical study conducted in a tertiary care centre, consecutive sampling of all children aged 1mo to 12y admitted with serologically confirmed Dengue was done from May 2015 through August 2016. After excluding 27 patients with co-infections and co-morbidities, 359 patients were followed up daily to assess clinical and laboratory progression till discharge/ death. Independent predictors were abdominal pain or tenderness, persistent vomiting, lethargy, mucosal bleed, clinical fluid accumulation, hepatomegaly >2 cm and rising hematocrit concurrent with platelet count <100 * 109/L. Outcome measure was severe dengue defined as per WHO guidelines 2009. RESULTS: Among 359 children, 93 progressed to severe dengue. In univariate analysis, significant predictors were clinical fluid accumulation (OR 4.773, p = 0.000, 95%CI 2.511-9.075), persistent vomiting (OR 1.944, p = 0.010, 95%CI 1.170 3.225), mucosal bleed (OR 2.045, p = 0.019, 95%CI 1.127-3.711) and hematocrit >=0.40 concurrent with platelet count <100 * 109/L (OR 2.985, p = 0.000, 95%CI 1.783-4.997). The final multivariable model included clinical fluid accumulation (aOR 3.717, p = 0.000, 95%CI 1.901-7.269), hematocrit >=0.40 concurrent with platelet count <100 * 109/L (aOR 2.252, p = 0.004, 95%CI 1.302-3.894) and persistent vomiting (p = 0.056) as predictors of severe dengue. CONCLUSIONS: Among seven WHO warning signs, predictors of severe dengue as suggested by the present multivariable prediction model include clinical fluid accumulation, persistent vomiting and hematocrit >=0.40 concurrent with platelet count <100 * 109/L. PMID- 29344877 TI - A bioluminescent test system reveals valuable antioxidant properties of lactobacillus strains from human microbiota. AB - Oxidative stress cause serious damages in human organism resulting in multiple diseases. Antioxidant therapy includes diet, the use of chemical agents or commensal bacteria such as lactobacilli. This study aims to evaluate the antioxidant (AO) activity of cell-free culture supernatants of lactobacilli, isolated from different parts of the human body. A test system based on Escherichia coli MG1655 strains carrying plasmids encoding luminescent biosensors pSoxS-lux and pKatG-lux inducible by superoxide anion and hydrogen peroxide, respectively, was used to analyze cell-free culture supernatants of lactobacilli. Bioluminescent detection systems are suitable for quick screening of AO activity of lactobacilli. The majority of strains (51 out of 81) belonging to six different species demonstrated various levels of antioxidant activity. This activity was confirmed using the trolox equivalent method. The genome of one of the strains showing high AO activity was sequenced, and the genes putatively involved in AO capacity were determined. Potencies of standard AO and CFS from the most active Lactobacillus strains. Percentages of decrease in the detected luminescence (IAO%) in the presence of AO or CFS are presented. L. br.-L. brevis, L. pl. -L. plantarum, L. rh.-L. rhamnosus. PMID- 29344876 TI - Biosimilarity and Interchangeability: Principles and Evidence: A Systematic Review. AB - BACKGROUND: The efficacy, safety and immunogenicity risk of switching between an originator biologic and a biosimilar or from one biosimilar to another are of potential concern. OBJECTIVES: The aim was to conduct a systematic literature review of the outcomes of switching between biologics and their biosimilars and identify any evidence gaps. METHODS: A systematic literature search was conducted in PubMed, EMBASE and Cochrane Library from inception to June 2017. Relevant societal meetings were also checked. Peer-reviewed studies reporting efficacy and/or safety data on switching between originator and biosimilar products or from one biosimilar to another were selected. Studies with fewer than 20 switched patients were excluded. Data were extracted on interventions, study population, reason for treatment switching, efficacy outcomes, safety and anti-drug antibodies. RESULTS: The systematic literature search identified 63 primary publications covering 57 switching studies. The reason for switching was reported as non-medical in 50 studies (23 clinical, 27 observational). Seven studies (all observational) did not report whether the reasons for switching were medical or non-medical. In 38 of the 57 studies, fewer than 100 patients were switched. Follow-up after switching went beyond 1 year in eight of the 57 studies. Of the 57 studies, 33 included statistical analysis of disease activity or patient outcomes; the majority of these studies found no statistically significant differences between groups for main efficacy parameters (based on P < 0.05 or predefined acceptance ranges), although some studies observed changes for some parameters. Most studies reported similar safety profiles between groups. CONCLUSIONS: There are important evidence gaps around the safety of switching between biologics and their biosimilars. Sufficiently powered and appropriately statistically analysed clinical trials and pharmacovigilance studies, with long term follow-ups and multiple switches, are needed to support decision-making around biosimilar switching. PMID- 29344878 TI - Gemcitabine and Taxane Adjuvant Therapy with Chemoradiation in Resected Pancreatic Cancer: A Novel Strategy for Improved Survival? AB - BACKGROUND: Gemcitabine-taxane combination chemotherapy has demonstrated a survival benefit clinically in metastatic pancreatic cancer (PC). The authors present their experience with gemcitabine and docetaxel (gem/tax)-based adjuvant treatment (Rx) after surgery with curative intent. METHODS: Patients with de novo resectable PC from January 2010 to December 2015 were identified from the authors' institutional database and registry. The study included only patients who received gem/tax as their initial Rx administered exclusively at the authors' institution with or without chemoradiation (CRTx). Survival analysis was performed using Kaplan-Meier methods, and prognostic factors were investigated by Cox proportional hazard modeling. RESULTS: Of 102 patients identified, 58 met the study criteria. The median age at diagnosis was 65 years, with 55% of the patients undergoing an R1 resection (margin <= 1 mm). Tumor characteristics included a median tumor size of 28 mm, a poor differentiation rate of 54%, and a lymph node positivity of 67%. Most of the patients (90%, 52/58) completed 80% or more of the 24 week Rx. Of these patients, 71% received post-gem/tax CRTx Rx. Grade 3 or 4 toxicity was observed in 52% of the patients. The median follow-up period was 51.2 months, and the observed median overall survival (OS) was 52 months [95% confidence interval (CI) 27.4-not reached]. The actuarial 5-year OS was 49% (95% CI 33.7-63.4%). In the multivariate analysis, an R1 resection and American Joint Committee on Cancer (AJCC) stage 2 versus stage 1 disease were negatively associated with OS, whereas administration of CRTx was positively associated with OS. CONCLUSIONS: Adjuvant gem/tax with or without CRTx is feasible, with a favorable OS. Future prospective studies of gem/taxane-based adjuvant Rx for PC are warranted. PMID- 29344879 TI - Antiplatelet (aspirin) therapy as a new option in the treatment of vasculogenic erectile dysfunction: a prospective randomized double-blind placebo-controlled study. AB - PURPOSE: To investigate the efficiency of antiplatelet (aspirin) therapy in vasculogenic erectile dysfunction (VED) patients with a high mean platelet volume. METHODS: A total of 184 patients diagnosed with VED between the ages of 18 and 76 were randomly divided into two groups and treated for 6 weeks [group 1: 120 patients (mean age 48.3), aspirin 100 mg/day; group 2: 64 patients (mean age 47.7), placebo 100 mg/day]. The changes from baseline to end point in erectile function scores on the International Index of Erectile Function (IIEF-EF) and the number of patients who answered "yes" to questions 2 and 3 of the sexual encounter profile (SEP) were compared statistically. RESULTS: The mean baseline IIEF-EF scores in groups 1 and 2 were 14.1 +/- 4.9 and 14.3 +/- 5.2, respectively (p = 0.7966), the number of patients who answered "yes" to SEP-2 was 62 (51.6%) in group 1 and 32 (50%) in group 2 (p = 0.8366), and the number of patients who answered "yes" to SEP-3 was 38 (31.6%) in group 1 and 20 (31.2%) in group 2 (p = 0.9557). In the aspirin group, the changes from baseline to end point in the IIEF EF, SEP-2, and SEP-3 scores were 7.2, 36.6, and 46.6%, respectively. In the placebo group, these changes were 2.0, 9.4, and 12.5%, respectively. When compared with the placebo group, aspirin-treated subjects showed a significant improvement in all three efficacy measures (p < 0.0001). CONCLUSIONS: 100 mg of aspirin administered once a day significantly improved EF in men with VED. PMID- 29344880 TI - The role of zinc in urinary stone disease. AB - In recent years, the role of trace elements in lithogenesis has received steadily increasing attention. It is well documented that some trace elements can influence the morphology and speed of the crystallization process. Zinc has been found in significant amounts in calcium stones relative or organic stones (uric acid and cystine), probably substituting calcium in crystals because of their similarity in charge and size. High Zn levels are present in carbapatite of Randal's plaques suggesting that zinc could promote calcium phosphate deposition in the medullar interstitium. Large-scale epidemiological studies have found an association of increased dietary zinc intake with increased risk of nephrolithiasis in adults but not in adolescents. Most studies examining urinary zinc levels in adults have reported increased urinary Zn excretion in stone formers. In an experimental model of organic crystal formation produced by silencing xanthine dehydrogenase in Drosophila fly, maneuvers that reduce Zn excretion have shown to reduce crystal formation in the lumen of the Malpighian tubules. This is curious because this is not a model of calcium stone formation. Finally, zinc supplementation has been associated with increased admissions for urinary lithiasis in men, but no change in calcium stone formation in children. Perhaps, some of these contradicting findings can be explained in part by the in vitro effect of zinc on the type and amount of calcium phosphate formed: At low concentrations, Zn inhibited the crystal growth of dicalcium phosphate dihydrate, octacalcium phosphate, and apatite, and at higher concentrations, it promoted the formation of amorphous calcium phosphate. Thus, further studies are needed to see whether manipulation of Zn metabolism can inhibit calcium stone formation. PMID- 29344882 TI - Detection of Combinatorial Mutational Patterns in Human Cancer Genomes by Exclusivity Analysis. AB - Cancer genes may tend to mutate in a co-mutational or mutually exclusive manner in a tumor sample of a specific cancer, which constitute two known combinatorial mutational patterns for a given gene set. Previous studies have established that genes functioning in different signaling pathways can mutate in the same sample, i.e., a tumor from one patient, while genes operating in the same pathway are rarely mutated in the same cancer genome. Therefore, reliable identification of combinatorial mutational patterns of candidate cancer genes has important ramifications in inferring signaling network modules in a particular cancer type. While algorithms for discovering mutated driver pathways based on mutual exclusivity of mutations in cancer genes have been proposed, a systematic pipeline for identifying both co-mutational and mutually exclusive patterns with rational significance estimation is still lacking. Here, we describe a reliable framework with detailed procedures to simultaneously explore both combinatorial mutational patterns from public cross-sectional gene mutation data. PMID- 29344883 TI - Discovering Altered Regulation and Signaling Through Network-based Integration of Transcriptomic, Epigenomic, and Proteomic Tumor Data. AB - With the extraordinary rise in available biological data, biologists and clinicians need unbiased tools for data integration in order to reach accurate, succinct conclusions. Network biology provides one such method for high throughput data integration, but comes with its own set of algorithmic problems and needed expertise. We provide a step-by-step guide for using Omics Integrator, a software package designed for the integration of transcriptomic, epigenomic, and proteomic data. Omics Integrator can be found at http://fraenkel.mit.edu/omicsintegrator . PMID- 29344881 TI - The impact of exercise on physical function, cardiovascular outcomes and quality of life in chronic kidney disease patients: a systematic review. AB - The prevalence of chronic kidney disease (CKD) and end-stage renal disease (ESRD) is increasing steadily. CKD does not only relate to morbidity and mortality but also has impact on quality of life, depression and malnutrition. Such patients often have significantly decreased physical activity. Recent evidence suggests that low physical activity is associated with morbidity, mortality, muscle atrophy, quality of life impairment, cardiovascular outcomes and depression. Based on this, it is now recommended to regularly improve the physical activity of these patients. Furthermore, studies have shown the beneficial effects of various exercise programs with respect to outcomes such as low physical activity muscle atrophy, quality of life, cardiovascular outcomes and depression. Despite these encouraging findings, the subject is still under debate, with various aspects still unknown. In this review, we tried to critically summarize the existing studies, to explore mechanisms and describe future perspectives regarding physical activity in CKD/ESRD patients. PMID- 29344884 TI - Analyzing DNA Methylation Patterns During Tumor Evolution. AB - Epigenetic modifications play a key role in cellular development and tumorigenesis. Recent large-scale genomic studies have shown that mutations in players of the epigenetic machinery and concomitant perturbation of epigenomic patterning are frequent events in tumors. Among epigenetic marks, DNA methylation is one of the best studied. Hyper- and hypo-methylation events of specific regulatory elements (such as promoters and enhancers) are sometimes thought to be correlated with expression of nearby genes. High-throughput bisulfite converted sequencing is currently the technology of choice for studying DNA methylation in base-pair resolution and on whole-genome scale. Such broad and high-resolution coverage investigations of the epigenome provide unprecedented opportunities to analyze DNA methylation patterns, which are correlated with tumorigenesis, tumor evolution, and tumor progression. However, few computational pipelines are available to the public to perform systematic DNA methylation analysis. Utilizing open source tools, we here describe a comprehensive computational methodology to thoroughly analyze DNA methylation patterns during tumor evolution based on bisulfite converted sequencing data, including intra-tumor methylation heterogeneity. PMID- 29344885 TI - MicroRNA Networks in Breast Cancer Cells. AB - A variety of molecular techniques can be used in order to unravel the molecular composition of cells. In particular, the microarray technology has been used to identify novel biomarkers that may be useful in the diagnosis, prognosis, or treatment of cancer. The microarray technology is ideal for biomarker discovery as it allows for the screening of a large number of molecules at once. In this review, we focus on microRNAs (miRNAs) which are key molecules in cells and regulate gene expression post-transcriptionally. miRNAs are small, single stranded RNA molecules that bind to complementary mRNAs. Binding of miRNAs to mRNAs leads either to degradation, or translational inhibition of the target mRNA. Roughly one third of all the mRNAs are postulated to be regulated by miRNAs. miRNAs are known to be deregulated in different types of cancer, including breast cancer, and it has been demonstrated that deregulation of several miRNAs can be used as biological markers in cancer. miRNA expression can for example discriminate between normal, benign and malignant breast tissue, and between different breast cancer subtypes.In the post-genomic era, an important task of molecular biology is to understand gene regulation in the context of biological networks. Because miRNAs have such a pronounced role in cells, it is pivotal to understand the mechanisms that underlie their control, and to identify how miRNAs influence cancer development and progression. PMID- 29344886 TI - Identifying Genetic Dependencies in Cancer by Analyzing siRNA Screens in Tumor Cell Line Panels. AB - Loss-of-function screening using RNA interference or CRISPR approaches can be used to identify genes that specific tumor cell lines depend upon for survival. By integrating the results from screens in multiple cell lines with molecular profiling data, it is possible to associate the dependence upon specific genes with particular molecular features (e.g., the mutation of a cancer driver gene, or transcriptional or proteomic signature). Here, using a panel of kinome-wide siRNA screens in osteosarcoma cell lines as an example, we describe a computational protocol for analyzing loss-of-function screens to identify genetic dependencies associated with particular molecular features. We describe the steps required to process the siRNA screen data, integrate the results with genotypic information to identify genetic dependencies, and finally the integration of protein-protein interaction data to interpret these dependencies. PMID- 29344888 TI - Perseus: A Bioinformatics Platform for Integrative Analysis of Proteomics Data in Cancer Research. AB - Mass spectrometry-based proteomics is a continuously growing field marked by technological and methodological improvements. Cancer proteomics is aimed at pursuing goals such as accurate diagnosis, patient stratification, and biomarker discovery, relying on the richness of information of quantitative proteome profiles. Translating these high-dimensional data into biological findings of clinical importance necessitates the use of robust and powerful computational tools and methods. In this chapter, we provide a detailed description of standard analysis steps for a clinical proteomics dataset performed in Perseus, a software for functional analysis of large-scale quantitative omics data. PMID- 29344889 TI - Quantitative Analysis of Tyrosine Kinase Signaling Across Differentially Embedded Human Glioblastoma Tumors. AB - Glioblastoma is the most aggressive primary brain tumor with a poor mean survival even with the current standard of care. Kinase signaling analyses of clinical glioblastoma samples provide a physiologically relevant view of oncogenic signaling networks. Here, we describe the methods that enable the quantification of protein expression profiles and phosphotyrosine signaling across flash frozen and optimal cutting temperature (OCT) compound embedded tumor specimens. The data derived from these experiments can be used to identify the intra- and inter patient heterogeneity present in these tumors. Correlation and functional analyses on the quantitative protein expression and phosphotyrosine signaling data obtained from clinical samples can be used to identify tyrosine kinase signaling networks present in these tumors and reveal the differential expression of functionally related proteins. This chapter provides the quantitative mass spectrometry methods required for the identification of in vivo oncogenic signaling networks from human tumor specimens. PMID- 29344887 TI - Phosphoproteomics-Based Profiling of Kinase Activities in Cancer Cells. AB - Cellular signaling, predominantly mediated by phosphorylation through protein kinases, is found to be deregulated in most cancers. Accordingly, protein kinases have been subject to intense investigations in cancer research, to understand their role in oncogenesis and to discover new therapeutic targets. Despite great advances, an understanding of kinase dysfunction in cancer is far from complete.A powerful tool to investigate phosphorylation is mass-spectrometry (MS)-based phosphoproteomics, which enables the identification of thousands of phosphorylated peptides in a single experiment. Since every phosphorylation event results from the activity of a protein kinase, high-coverage phosphoproteomics data should indirectly contain comprehensive information about the activity of protein kinases.In this chapter, we discuss the use of computational methods to predict kinase activity scores from MS-based phosphoproteomics data. We start with a short explanation of the fundamental features of the phosphoproteomics data acquisition process from the perspective of the computational analysis. Next, we briefly review the existing databases with experimentally verified kinase-substrate relationships and present a set of bioinformatic tools to discover novel kinase targets. We then introduce different methods to infer kinase activities from phosphoproteomics data and these kinase-substrate relationships. We illustrate their application with a detailed protocol of one of the methods, KSEA (Kinase Substrate Enrichment Analysis). This method is implemented in Python within the framework of the open-source Kinase Activity Toolbox (kinact), which is freely available at http://github.com/saezlab/kinact/ . PMID- 29344890 TI - Prediction of Clinical Endpoints in Breast Cancer Using NMR Metabolic Profiles. AB - Metabolic profiles reflect biological conditions as a result of biochemical changes within a living system. It is therefore possible to associate metabolic signatures with clinical endpoints of diseases, such as breast cancer. Nuclear magnetic resonance (NMR) spectroscopy is one of the most common techniques used for metabolic profiling, and produces high dimensional datasets from which meaningful biological information can be extracted. Here, we present an overview of data analysis techniques used to achieve this, describing key steps in the procedure. Moreover, examples of clinical endpoints of interest are provided. Although these are specific for breast cancer, the procedures for the analysis of NMR spectra as described here are applicable to any type of cancer and to other diseases. PMID- 29344891 TI - Stochastic and Deterministic Models for the Metastatic Emission Process: Formalisms and Crosslinks. AB - Although the detection of metastases radically changes prognosis of and treatment decisions for a cancer patient, clinically undetectable micrometastases hamper a consistent classification into localized or metastatic disease. This chapter discusses mathematical modeling efforts that could help to estimate the metastatic risk in such a situation. We focus on two approaches: (1) a stochastic framework describing metastatic emission events at random times, formalized via Poisson processes, and (2) a deterministic framework describing the micrometastatic state through a size-structured density function in a partial differential equation model. Three aspects are addressed in this chapter. First, a motivation for the Poisson process framework is presented and modeling hypotheses and mechanisms are introduced. Second, we extend the Poisson model to account for secondary metastatic emission. Third, we highlight an inherent crosslink between the stochastic and deterministic frameworks and discuss its implications. For increased accessibility the chapter is split into an informal presentation of the results using a minimum of mathematical formalism and a rigorous mathematical treatment for more theoretically interested readers. PMID- 29344892 TI - Mechanically Coupled Reaction-Diffusion Model to Predict Glioma Growth: Methodological Details. AB - Biophysical models designed to predict the growth and response of tumors to treatment have the potential to become a valuable tool for clinicians in care of cancer patients. Specifically, individualized tumor forecasts could be used to predict response or resistance early in the course of treatment, thereby providing an opportunity for treatment selection or adaption. This chapter discusses an experimental and modeling framework in which noninvasive imaging data is used to initialize and parameterize a subject-specific model of tumor growth. This modeling approach is applied to an analysis of murine models of glioma growth. PMID- 29344893 TI - Profiling Tumor Infiltrating Immune Cells with CIBERSORT. AB - Tumor infiltrating leukocytes (TILs) are an integral component of the tumor microenvironment and have been found to correlate with prognosis and response to therapy. Methods to enumerate immune subsets such as immunohistochemistry or flow cytometry suffer from limitations in phenotypic markers and can be challenging to practically implement and standardize. An alternative approach is to acquire aggregative high dimensional data from cellular mixtures and to subsequently infer the cellular components computationally. We recently described CIBERSORT, a versatile computational method for quantifying cell fractions from bulk tissue gene expression profiles (GEPs). Combining support vector regression with prior knowledge of expression profiles from purified leukocyte subsets, CIBERSORT can accurately estimate the immune composition of a tumor biopsy. In this chapter, we provide a primer on the CIBERSORT method and illustrate its use for characterizing TILs in tumor samples profiled by microarray or RNA-Seq. PMID- 29344894 TI - Systems Biology Approaches in Cancer Pathology. AB - The complex network of the tissue system, in both pre-neoplastic tissues and tumors, demonstrates the need for a systems biology approach to cancer pathology, in which quantification of key tissue system processes is combined with informatics tools to produce actionable scores to aid clinical decision-making. A systems biology approach to cancer pathology enables integration of key system features that are relevant to diagnoses, patient outcomes, and responses to therapies. Key tissue system features relevant to cancer pathology include molecular and morphologic abnormalities in epithelia, cellular changes in the stroma such as immune infiltrates, and relationships between components of the system, such as interactions and spatial relationships between epithelial and stromal components, and also between specific immune cell subsets. Here, we describe a method for objective quantification of multiple epithelial and stromal biomarkers in the context of tissue architecture to generate a high dimensional tissue profile that can be used to build multivariable predictive models for cancer pathology. PMID- 29344895 TI - Bioinformatics Approaches to Predict Drug Responses from Genomic Sequencing. AB - Fulfilling the promises of precision medicine will depend on our ability to create patient-specific treatment regimens. Therefore, being able to translate genomic sequencing into predicting how a patient will respond to a given drug is critical. In this chapter, we review common bioinformatics approaches that aim to use sequencing data to predict sample-specific drug susceptibility. First, we explain the importance of customized drug regimens to the future of medical care. Second, we discuss the different public databases and community efforts that can be leveraged to develop new methods for identifying new predictive biomarkers. Third, we cover the basic methods that are currently used to identify markers or signatures of drug response, without any prior knowledge of the drug's mechanism of action. We further discuss how one can integrate knowledge about drug targets, mechanisms, and predictive markers to better estimate drug response in a diverse set of samples. We begin this section with a primer on popular methods to identify targets and mechanism of action for new small molecules. This discussion also includes a set of computational methods that incorporate other drug features, which do not relate to drug-induced genetic changes or sequencing data such as drug structures, side-effects, and efficacy profiles. Those additional drug properties can aid in gaining higher accuracy for the identification of drug target and mechanism of action. We then progress to discuss using these targets in combination with disease-specific expression patterns, known pathways, and genetic interaction networks to aid drug choice. Finally, we conclude this chapter with a general overview of machine learning methods that can integrate multiple pieces of sequencing data along with prior drug or biological knowledge to drastically improve response prediction. PMID- 29344896 TI - A Robust Optimization Approach to Cancer Treatment under Toxicity Uncertainty. AB - The design of optimal protocols plays an important role in cancer treatment. However, in clinical applications, the outcomes under the optimal protocols are sensitive to variations of parameter settings such as drug effects and the attributes of age, weight, and health conditions in human subjects. One approach to overcoming this challenge is to formulate the problem of finding an optimal treatment protocol as a robust optimization problem (ROP) that takes parameter uncertainty into account. In this chapter, we describe a method to model toxicity uncertainty. We then apply a mixed integer ROP to derive the optimal protocols that minimize the cumulative tumor size. While our method may be applied to other cancers, in this work we focus on the treatment of chronic myeloid leukemia (CML) with tyrosine kinase inhibitors (TKI). For simplicity, we focus on one particular mode of toxicity arising from TKI therapy, low blood cell counts, in particular low absolute neutrophil count (ANC). We develop optimization methods for locating optimal treatment protocols assuming that the rate of decrease of ANC varies within a given interval. We further investigated the relationship between parameter uncertainty and optimal protocols. Our results suggest that the dosing schedule can significantly reduce tumor size without recurrence in 360 weeks while insuring that toxicity constraints are satisfied for all realizations of uncertain parameters. PMID- 29344897 TI - Modeling of Interactions between Cancer Stem Cells and their Microenvironment: Predicting Clinical Response. AB - Mathematical models of cancer stem cells are useful in translational cancer research for facilitating the understanding of tumor growth dynamics and for predicting treatment response and resistance to combined targeted therapies. In this chapter, we describe appealing aspects of different methods used in mathematical oncology and discuss compelling questions in oncology that can be addressed with these modeling techniques. We describe a simplified version of a model of the breast cancer stem cell niche, illustrate the visualization of the model, and apply stochastic simulation to generate full distributions and average trajectories of cell type populations over time. We further discuss the advent of single-cell data in studying cancer stem cell heterogeneity and how these data can be integrated with modeling to advance understanding of the dynamics of invasive and proliferative populations during cancer progression and response to therapy. PMID- 29344898 TI - Methods for High-throughput Drug Combination Screening and Synergy Scoring. AB - Gene products or pathways that are aberrantly activated in cancer but not in normal tissue hold great promises for being effective and safe anticancer therapeutic targets. Many targeted drugs have entered clinical trials but so far showed limited efficacy mostly due to variability in treatment responses and often rapidly emerging resistance. Toward more effective treatment options, we will need multi-targeted drugs or drug combinations, which selectively inhibit the viability and growth of cancer cells and block distinct escape mechanisms for the cells to become resistant. Functional profiling of drug combinations requires careful experimental design and robust data analysis approaches. At the Institute for Molecular Medicine Finland (FIMM), we have developed an experimental computational pipeline for high-throughput screening of drug combination effects in cancer cells. The integration of automated screening techniques with advanced synergy scoring tools allows for efficient and reliable detection of synergistic drug interactions within a specific window of concentrations, hence accelerating the identification of potential drug combinations for further confirmatory studies. PMID- 29344901 TI - Imaging Characteristics and First Experience of [68Ga]THP-PSMA, a Novel Probe for Rapid Kit-Based Ga-68 Labeling and PET Imaging: Comparative Analysis with [68Ga]PSMA I&T. AB - PURPOSE: [68Ga]Trishydroxypyridinone (THP)-prostate-specific membrane antigen (PSMA) is a novel tracer that can be labeled in one step by cold reconstitution of a kit with unprocessed generator eluate, targeting PSMA via the lysine-urea glutamate (KuE) motif. The aim of this study was to evaluate the human imaging characteristics of [68Ga]THP-PSMA. PROCEDURES: [68Ga]THP-PSMA positron emission tomography (PET)/x-ray computed tomography (CT) was performed in 25 patients with biochemical recurrence after radical prostatectomy for prostate cancer. Urinary and biliary excretion and tumor lesion uptake were quantified using standardized uptake values (SUVs). Imaging characteristics were assessed in terms of non target organ uptake, background activity, target-to-background ratios (TBRs) of tumor lesions, and frequency of bladder halo artifacts. Findings were compared to a matched cohort of 25 patients undergoing PET/CT with the established agent [68Ga]PSMA I&T. RESULTS: Physiologic uptake of [68Ga]THP-PSMA was significantly lower in salivary glands (P < 0.0001), liver (P < 0.0001), spleen (P < 0.0001), and kidneys (P < 0.0001) than with [68Ga]PSMA I&T. While biliary tracer excretion of [68Ga]THP-PSMA was negligible, urinary tracer excretion of [68Ga]THP-PSMA was fast, and significantly higher than for [68Ga]PSMA I&T, contributing to a higher frequency of bladder artifacts. Malignant lesion uptake of [68Ga]THP-PSMA assessed as either SUV or TBR was significantly lower than with [68Ga]PSMA I&T. CONCLUSION: [68Ga]THP-PSMA yields suitable in vivo uptake characteristics. The simplified synthesis method for [68Ga]THP-PSMA may facilitate wider application and higher patient throughput with PSMA imaging. However, direct intraindividual comparison studies are needed to assess the relative performance of [68Ga]THP PSMA vs other PSMA ligands in terms of clinical detection rate and image quality. PMID- 29344902 TI - Occupational exposure to electromagnetic fields in magnetic resonance environment: basic aspects and review of exposure assessment approaches. AB - The purpose of this review is to make a contribution to build a comprehensive knowledge of the main aspects related to the occupational exposure to electromagnetic fields (EMFs) in magnetic resonance imaging (MRI) environments. Information has been obtained from original research papers published in international peer-reviewed journals in the English language and from documents published by governmental bodies and authorities. An overview of the occupational exposure scenarios to static magnetic fields, motion-induced, time-varying magnetic fields, and gradient and radiofrequency fields is provided, together with a summary of the relevant regulation for limiting exposure. A particular emphasis is on reviewing the main EMF exposure assessment approaches found in the literature. Exposure assessment is carried out either by measuring the unperturbed magnetic fields in the MRI rooms, or by personal monitoring campaigns, or by the use of numerical methods. A general lack of standardization of the procedures and technologies adopted for exposure assessment has emerged, which makes it difficult to perform a direct comparison of results from different studies carried out by applying different assessment strategies. In conclusion, exposure assessment approaches based on data collection and numerical models need to be better defined in order to respond to specific research questions. That would provide for a more complete characterization of the exposure patterns and for identification of the factors determining the exposure variability. Graphical abstract Main approaches adopted in the literature to perform occupational exposure assessment to electromagnetic fields (EMFs) in magnetic resonance imaging (MRI) environments. SMF: static magnetic field; GMF: gradient magnetic fields; RF: radio-frequencies. PMID- 29344903 TI - Nuclear genes involved in mitochondrial diseases caused by instability of mitochondrial DNA. AB - Mitochondrial diseases are defined by a respiratory chain dysfunction and in most of the cases manifest as multisystem disorders with predominant expression in muscles and nerves and may be caused by mutations in mitochondrial (mtDNA) or nuclear (nDNA) genomes. Most of the proteins involved in respiratory chain function are nuclear encoded, although 13 subunits of respiratory chain complexes (together with 2 rRNAs and 22 tRNAs necessary for their translation) encoded by mtDNA are essential for cell function. nDNA encodes not only respiratory chain subunits but also all the proteins responsible for mtDNA maintenance, especially those involved in replication, as well as other proteins necessary for the transcription and copy number control of this multicopy genome. Mutations in these genes can cause secondary instability of the mitochondrial genome in the form of depletion (decreased number of mtDNA molecules in the cell), vast multiple deletions or accumulation of point mutations which in turn leads to mitochondrial diseases inherited in a Mendelian fashion. The list of genes involved in mitochondrial DNA maintenance is long, and still incomplete. PMID- 29344904 TI - MGMT assessment in pituitary adenomas: comparison of different immunohistochemistry fixation chemicals. AB - PURPOSE: Despite the established role of O6-methyl-guanine-DNA methyltransferase (MGMT) as a marker for temozolomide response, consensus of the most reliable method to assess MGMT expression in pituitary adenomas is still missing. Currently, immunohistochemistry (IHC) assessment of formaldehyde fixed tissue samples is most widely used in a semiquantitative description. As formaldehyde fails to completely preserve nucleic acids, RCL2, an alcohol-based formaldehyde free fixative, has been proposed as a more reliable alternative in terms of cell stability. Furthermore, as the current method of IHC is semiquantitative and observer-dependent, pyrosequencing, an objective tool to evaluate the methylation status of the MGMT promoter, has emerged as a reliable and accurate alternative. The aim of this study was to validate the current IHC method for assessment of MGMT protein expression in pituitary adenomas. METHODS: The tissue samples of 8 macroadenomas with positive IHC MGMT expression (> 50%) were investigated: first, we compared the time dependent stability of MGMT protein expression after pituitary adenoma removal between formaldehyde vs. RCL2. Then, we compared positive IHC MGMT expression with methylated promoter status using pyrosequencing. RESULTS: In the first 12 h after adenoma removal, tissue samples remained MGMT positive in significantly more samples when fixated with formaldehyde than with RCL2, respectively (96 vs. 81%, p = 0.025). CONCLUSION: Our data confirm that the current method using formaldehyde tissue fixation and IHC reveals stable and reliable results of MGMT assessment in pituitary adenomas. PMID- 29344905 TI - Management of NFAs: medical treatment. AB - INTRODUCTION: Non-functioning pituitary adenomas (NFPAs) are in general large tumors that present with symptoms secondary to local pressure on adjacent structures. Transsphenoidal surgery is the first line of treatment but residual tumor mass is often detected post-operatively. Medical therapy, in any stage of tumor management, is not well established. METHODS: A literature search was performed to review the available data on medical treatment of NFPAs. RESULTS: Medications investigated for the treatment of NFPAs include dopamine receptor agonists (DA) and somatostatin receptor ligands. Randomized controlled trials are lacking, but available data suggest that DA have a positive effect on tumor remnant stabilization after surgery and could be considered in this setting. Temozolomide is reserved for aggressive tumors, although future studies are required. CONCLUSIONS: NFPA are often not amenable to complete surgical resection. Conservative follow-up after surgery is associated with a high prevalence of tumor remnant progression. DA therapy may prevent residual tumor enlargement in over 85% of these patients, with a substantial consequent reduction in the need for repeat surgery or radiation therapy. It is our view that DA treatment should be routinely considered for the management of NFPA patients with incompletely resected tumors. PMID- 29344906 TI - Mortality in patients with non-functioning pituitary adenoma. AB - Non-functioning pituitary adenomas (NFA) are benign pituitary neoplasms not associated with clinical evidence of hormonal hypersecretion. A substantial number of patients with NFA have morbidities related to the tumor and possible recurrence(s), as well as to the treatments offered. Studies assessing the long term mortality of patients with NFA are limited. Based on the published literature of the last two decades, overall, the standardized mortality ratios in this group suggest mortality higher than that of the general population with deaths attributed mainly to circulatory, respiratory and infectious causes. Women seem to have higher mortality ratios, and assessment of time trends suggests improvement over the years. There is no consensus on predictive factors of mortality but those most consistently identified are older age at diagnosis and high doses of glucocorticoid substitution therapy. Well designed and of adequate power studies are needed to establish the significance of factors compromising the survival of patients with NFA and to facilitate improvements in long-term prognosis. PMID- 29344907 TI - Silent corticotroph adenomas. AB - PURPOSE: Silent corticotroph adenomas (SCAs) present clinically as non functioning adenomas (NFAs) but are immunopositive for adrenocorticotrophic hormone (ACTH) without biochemical and clinical manifestation of hypercortisolism. Pathologic examination of resected NFAs that demonstrate positive ACTH and/or TPIT expression confirms its corticotroph lineage. SCAs comprise up to 20% of NFAs and exhibit a higher rate of recurrence. Studies of molecular mechanisms have generated multiple hypotheses on SCA tumorigenesis, pathophysiology, and growth that as yet remain to be proven. An improved understanding of their pathologic and clinical characteristics is needed. METHODS: A literature review was performed using PubMed to identify research reports and clinical case series on SCAs. RESULTS: Up to date findings regarding epidemiology, mechanisms of pathogenesis, differentiation, progression, and growth, as well as clinical presentation, postoperative course, and treatment options for patients with SCAs are presented. Pooled results demonstrate that 25 40% of cases show cavernous sinus invasion, preoperative hypopituitarism, new onset hypopituitarism, and recurrence. CONCLUSION: This article reviews the incidence, molecular pathology, and clinical behavior of these unique non functioning pituitary corticotroph adenomas, and highlights the need for rigorous monitoring for recurrences and hypopituitarism in patients with SCAs. PMID- 29344908 TI - Encoding differences affect the number and precision of own-race versus other race faces stored in visual working memory. AB - Other-race faces are discriminated and recognized less accurately than own-race faces. Despite a wealth of research characterizing this other-race effect (ORE), little is known about the nature of the representations of own-race versus other race faces. This is because traditional measures of this ORE provide a binary measure of discrimination or recognition (correct/incorrect), failing to capture potential variation in the quality of face representations. We applied a novel continuous-response paradigm to independently measure the number of own-race and other-race face representations stored in visual working memory (VWM) and the precision with which they are stored. Participants reported target own-race or other-race faces on a circular face space that smoothly varied along the dimension of identity. Using probabilistic mixture modeling, we found that following ample encoding time, the ORE is attributable to differences in the probability of a face being maintained in VWM. Reducing encoding time, a manipulation that is more sensitive to encoding limitations, caused a loss of precision or an increase in variability of VWM for other-race but not own-race faces. These results suggest that the ORE is driven by the inefficiency with which other-race faces are rapidly encoded in VWM and provide novel insights about how perceptual experience influences the representation of own-race and other-race faces in VWM. PMID- 29344909 TI - Flash-induced forward and reverse illusory line motion in offset bars. AB - Illusory line motion (ILM) refers to perception of motion in a bar that onsets or offsets all at once. When the bar onsets or offsets between two boxes after one of the boxes flashes, the bar appears to shoot out of the flashed box (flashILM). If the bar offsets during the flash, it appears to contract into the flashed box (reverse ILM; rILM). Onset bars do not show rILM. Moreover, rILM and flashILM are not correlated, indicating they are two different illusions. To date, rILM has only been studied using a 50-ms flash where the bar offsets 16.7 ms after flash onset. It is not clear if rILM is due to the 16.7-ms flash-bar-removal stimulus onset asynchrony (SOA) or due to the flash offsetting after the bar. The current studies explore these parameters to better understand the conditions that lead to rILM. The results suggest that flashILM is sensitive to the temporal interval between flash onset and bar offset, while rILM appears to arise when the flash offsets after the bar has been removed regardless of the temporal interval between flash onset and bar removal. These results are consistent with flashILM reflecting visual exogenous attention while rILM may reflect the low-level spreading of subthreshold activation radiating from the flashed box. The findings are incorporated into the recent work that suggests that the literature concerning ILM is possibly conflating a number of different illusions of line motion, including polarized gamma motion (PGM), transformational apparent motion (TAM), and exogenous attention induced motion (flashILM). PMID- 29344910 TI - Mimesis and clinical pictures: thinking with Plato and Broekman through the production and meaning of images of disease. AB - This paper contends, following Plato and Broekman, that (1) seeing images as images is crucial to theorizing medicine and that (2) considering clinical pictures as images of images is a much-needed epistemic complement to the domineering view that sees clinical pictures as mirrors of disease. This does not only offer epistemic, but also ethical benefits to individual patients, especially in those cases where patients suffer from chronic, debilitating, and terminal illnesses and where medicine provides no, or limited, answers in terms of treatment, intervention, and meaning. By creating room for a theory of clinical pictures that rightfully emphasizes its pictorial nature, patients and doctors alike may be encouraged to consider under what authorship, and with which epistemic tools, alternative, supplemental images may be produced to get at the existential reality of disease and suffering. Ultimately, this paper argues that the epistemic tools provided by aesthetics may offer such glimpses into the reality of disease and suffering, and I conclude by discussing a few artistic renditions of breast cancer to illustrate my point. PMID- 29344911 TI - Recurrent infectious subcapsular renal hematoma accompanied by microaneurysm. AB - An 80-year-old woman was admitted to the hospital complaining of loss of appetite. 10 days earlier, her oral intake gradually decreased with no other specific symptoms, such as abdominal pain, nausea, vomiting, headache, or low back pain. Abdominal computed tomography (CT) scan revealed a left subcapsular renal hematoma. We suspected infective subcapsular renal hematoma, so percutaneous needle aspiration and drainage were performed. Intravenous sulbactam ampicillin was started immediately. On day 9 after admission, repeat CT scan revealed the subcapsular hematoma had reduced in size. The drain was removed, and intravenous antibiotics were discontinued. Follow-up CT scan on day 21 revealed increased subcapsular renal hematoma size. The patient also had high fever. Suspecting recurrence of infective subcapsular renal hematoma, we repeated the drainage of the hematoma and restarted intravenous antibiotics. Renal arteriography showed a renal artery microaneurysm and her condition improved with renal artery embolization. Renal arteriography was useful for detecting renal artery microaneurysm in infective subcapsular renal hematoma that did not resolve after antibiotic treatment and drainage. PMID- 29344912 TI - Capillary leak syndrome as a complication of antibody-mediated rejection treatment: a case report. AB - We report a case of capillary leak that developed during treatment of antibody mediated rejection in a kidney transplant recipient. A 53-year-old female transplant recipient experienced an increase in serum creatinine from 1.1 to 1.8 mg/dL. Antibody-mediated rejection was diagnosed by graft biopsy. She was treated with five plasmapheresis sessions (on alternate days with albumin replacement), five doses of immunoglobulin (5 g/dose at 100 mg/kg), a single dose of rituximab (500 mg), and four doses of bortezomib on days 1, 4, 7, and 10 (1.72 mg/dose at 1.3 mg/m2 body surface area). During treatment, edema, slight diarrhea, pancytopenia, hypoalbuminemia, peripheral neuropathy, and postural hypotension were noted. Despite control of liquids, she presented with edema progressing to an increase of more than 10 kg body weight. Prerenal acute graft dysfunction associated with hypotension was diagnosed on day 12, heart failure or other infectious complications being discounted. On day 13, daily hemodialysis was prescribed, and a stable volume status was reached after five hemodialysis sessions. On day 20, the patient recovered diuresis and the edema and diarrhea abated, but she remained on chronic hemodialysis. After excluding other causes of distributive shock, the diagnosis of capillary leak syndrome was based on the presence of hypotension, generalized edema, and hypoalbuminemia in the absence of significant proteinuria. The concomitant presence of diarrhea, peripheral neuropathy, and pancytopenia, suggest a possible causal role for bortezomib. Awareness by clinicians of capillary leak syndrome associated with bortezomib based treatment of AMR is paramount, despite its rarity. PMID- 29344913 TI - Cardiac basal autophagic activity and increased exercise capacity. AB - To investigate whether high-intensity interval training (HIIT) and continuous moderate-intensity training (CMT) have different impacts on exercise performance and cardiac function and to determine the influence of these exercise protocols on modulating basal autophagy in the cardiac muscle of rats. Rats were assigned to three groups: sedentary control (SC), CMT, and HIIT. Total exercise volume and mean intensity were matched between the two protocols. After a 10-week training program, rats were evaluated for exercise performance, including exercise tolerance and grip strength. Blood lactate levels were measured after an incremental exercise test. Cardiac function and morphology were assessed by echocardiography. Western blotting was used to evaluate the expression of autophagy and mitochondrial markers. Transmission electron microscopy was used to evaluate mitochondrial content. The results showed that time to exhaustion and grip strength increased significantly in the HIIT group compared with the SC and CMT groups. Both training interventions significantly increased time to exhaustion, reduced blood lactate level (after an incremental exercise test) and induced adaptive changes in cardiac morphology, but without altering cardiac systolic function. The greater improvements in exercise performance with the HIIT than with the CMT protocol were related to improvement in basal autophagic adaptation and mitochondria function in cardiac muscle. Mitochondria markers were positively correlated with autophagy makers. This study shows that HIIT is more effective for improving exercise performance than CMT and this improvement is related to mitochondrial function and basal autophagic adaptation in cardiac muscle. PMID- 29344914 TI - High lithium tolerance of Apocynum venetum seeds during germination. AB - Identification and use of lithium (Li) accumulator plants is a promising strategy to remediate Li-contaminated soil. Apocynum venetum is reported as a Li accumulator. However, its tolerance to Li salt during germination is still unknown. The primary aim of this study was to investigate the effects of two Li salts on seed germination of A. venetum. At the same concentrations, germination percentages in LiCl solution were higher than that in Li2CO3 solution. At 25 degrees C, seeds germinated to 4-90% at 0-400 mmol L-1 LiCl and 3-91% at 0-150 mmol L-1 Li2CO3. Low concentration (0-50 mmol L-1) of LiCl did not significantly affect germination percentage. The simulated critical value (when germination percentage is 50%) in LiCl solution is 196 mmol L-1, and 36 mmol L-1 for Li2CO3. Activity of alpha-amylase, contents of MDA, soluble sugar, and proline were dramatically affected by Li salts, especially at medium and late germination stages. When compared with control, alpha-amylase activity of seeds under 25 mmol L-1 LiCl and 10 mmol L-1 Li2CO3 did not show significant difference. Germination percentage and index, radicle length, and physiological parameters indicate A. venetum seeds are highly tolerant to Li salts during germination, especially LiCl. PMID- 29344915 TI - Mechanistic investigation of visible light driven photocatalytic inactivation of E. coli by Ag-AgCl/ZnFe2O4. AB - In this study, photocatalytic inactivation of Escherichia coli was investigated over magnetic nanocomposite Ag-AgCl/ZnFe2O4. The nanocomposite demonstrated efficient photocatalytic activity by complete inactivation of the bacteria within 60 min of visible light irradiation. The anions HPO42- and SO42- were found to play the most important role in the inhibition of photocatalytic inactivation of E. coli. A systematic investigation of mechanism of photocatalytic bacterial inactivation was carried out based on cell membrane injury test, scanning electron microscopy (SEM) of bacterial morphology changes, Fourier transform infrared (FTIR) spectroscopy of E. coli cells before and after treatment, superoxide dismutase (SOD) and catalase (CAT) activity assay, and role of various reactive oxygen species (ROS). The activities of SOD and CAT enzymes were found to decrease due to the ROSs attacks during photocatalytic inactivation. The ROS produced in the photocatalytic disinfection severely altered the bacterial permeability and led to protein fragmentation, release of ions, and generation of protein carbonyl derivatives. The leaked cytoplasmic substances and cell debris were further degraded and, ultimately, mineralized with prolonged photocatalytic treatment. PMID- 29344917 TI - Non-cardiac uptake of technetium-99m pyrophosphate in transthyretin cardiac amyloidosis. AB - BACKGROUND: Technetium-based bone scintigraphy is rapidly becoming the most common non-invasive imaging tool in the diagnosis of Transthyretin cardiac amyloidosis (ATTR). Skeletal muscle uptake has been described with technetium-99m 3,3-diphosphono-1,2-propanodicarboxylic acid (TcDPD), and may account for masking of bony uptake. We sought to investigate skeletal muscle uptake of technetium-99m pyrophosphate (TcPYP) in patients with ATTR. METHODS AND RESULTS: This was a retrospective analysis of 57 patients diagnosed with ATTR who underwent TcPYP scintigraphy. Cardiac uptake was assessed on whole-body planar imaging using a semiquantitative scale (grades 0 to 3) and on single-photon emission computed tomography (SPECT) with CT attenuation correction using total myocardial counts per voxel after a 3-hour incubation. Skeletal muscle (psoas and biceps), vertebral body, LV myocardium, and blood pool mean counts were calculated. In the cohort (age 78 +/- 9 years, 77% male, and 30% hereditary ATTR), there was no visualized tracer uptake in skeletal muscle or soft tissue on qualitative SPECT assessment. Total and blood pool-corrected uptake in the muscle groups were significantly less than myocardium and bone (P < 0.001). Blood pool-corrected muscle uptake was not associated with semiquantitative grade 3 vs 2 uptake (psoas P = 0.66, biceps P = 0.13) or presence of hereditary ATTR (psoas P = 0.43, biceps P = 0.69). As bony uptake decreased, there was no corresponding increase in skeletal muscle uptake. CONCLUSIONS: In patients with ATTR cardiac amyloidosis, skeletal muscle uptake of TcPYP is minimal when assessed by qualitative and quantitative metrics, and is not significantly different in patients with grade 2 vs 3 semiquantitative uptake. The properties of this tracer may be different than TcDPD with respect to non-cardiac uptake. PMID- 29344916 TI - The acute effects of erythromycin and oxytetracycline on enhanced biological phosphorus removal system: shift in bacterial community structure. AB - Since extensive application, an increasing amount of antibiotics has been released into wastewater treatment plants. In this study, the enhanced biological phosphorus removal (EBPR) system was fed with synthetic wastewater containing erythromycin (ERY) and oxytetracycline (OTC) for 7 days to evaluate the variations of solution ortho-P (SOP), volatile fatty acid (VFA), poly bhydroxyalkanoates (PHAs), specific oxygen uptake rater (SOUR), and microbial community in the EBPR system. The obtained results showed that the P-removal efficiency decreased to 0.0%, and at the end of the experiment, only less than 20% of the VFA could be consumed. Besides, the variable processes of P and PHAs were destroyed. Moreover, to better grasp the inhibitory mechanism of antibiotics, microbial community compositions of activated sludge sampled in all reactors were investigated by high-throughput sequencing techniques. Results of comparative and evolutionary analysis revealed that high concentrations (5 and 10 mg/L) of ERY and OTC could seriously shift microbial communities, while combined antibiotics could induce more. Additionally, Accumulibacter and Competibacter were two primary microorganisms at the genus level in the EBPR system. Accumulibacter decreased seriously for exposure to antibiotics, while Competibacter increased in all experimental reactors especially in combined antibiotics reactor. PMID- 29344918 TI - Artifact-free quantitative cardiovascular PET/MR imaging: An impossible dream? PMID- 29344919 TI - The impact of patient-to-detector distance on LV volumes and TID index on SPECT myocardial perfusion imaging: Emphasis on consistent patient-detector positioning in stress and rest phases. PMID- 29344920 TI - Inflammatory reaction of a pericardial foreign body after cardiac surgery. PMID- 29344921 TI - Does simplified quantitative analysis of 18F-FDG PET in cardiac inflammatory disease work? PMID- 29344922 TI - Impact of renin-angiotensin-aldosterone system polymorphisms on myocardial perfusion: Correlations with myocardial single photon emission computed tomography-derived parameters. AB - BACKGROUND: Renin-angiotensin-aldosterone system (RAAS) has an important role in atherosclerosis. We investigated the effects of six RAAS gene polymorphisms on myocardial perfusion. METHODS AND RESULTS: We examined 810 patients with known or suspected coronary artery disease (CAD) using stress-rest myocardial single photon emission computed tomography. Summed stress score (SSS), summed rest score (SRS), summed difference score (SDS), transient ischemic dilation (TID), and lung/heart ratio (LHR) were recorded. The following gene polymorphisms were investigated: angiotensin-converting enzyme (ACE) insertion/deletion (I/D), angiotensinogen (AGT) M235T and T174M, angiotensin II type 1 receptor (AT1R) A1166C, renin (REN) C5312T, and angiotensin II type 2 receptor (AT2R) C3123A. The heterozygotes or homozygotes on ACE D allele were 7.54 times more likely to have abnormal SSS, while the AGT (T174M) heterozygotes were 5.19 times more likely to have abnormal SSS. The homozygotes of ACE D had significantly higher values on TID and LHR, while the AGT (T174M) heterozygotes had higher values on TID. The AT1R heterozygotes had greater odds for having SSS >= 3. The patients carried AT1R homozygosity of C allele had significantly higher values on TID, while heterozygotes of AT1R had significantly higher values on LHR. CONCLUSIONS: Among the polymorphisms investigated, ACE D allele had the strongest association with abnormal myocardial perfusion. PMID- 29344923 TI - Potential effects of low-dose average CT on cardiac implantable electronic devices. AB - BACKGROUND: Average CT has been shown to be more accurate than conventional helical CT in quantitation of the PET data. The risk of CT irradiation of a cardiac implantable electronic device (CIED) causing an adverse event is low and is generally outweighed by the clinical benefit of a medically indicated examination. However, irradiation of CIED over one breath cycle in cine CT scan for average CT could impose risks on a patient who is pacing dependent. The purpose of this study was to demonstrate that low-dose average CT can be safe for CIED. METHODS: A Medtronic CIED of model Protecta VR was submerged in a saline bath for a series of 4-s cine CT scans on a GE CT scanner programmed to deliver a 2-cm-wide radiation at a dose rate of 0.9 to 41.2 mGy/s to the CIED. The number of over-sensings was recorded as the interference of radiation to the CIED. RESULTS: Dose rates >= 1.9 mGy/s caused over-sensing. The higher the dose rate, the more over-sensings there were. The lowest dose rate of 0.9 mGy/s did not cause any over-sensing. CONCLUSIONS: Low-dose average CT at 0.9 mGy/s can be safe for a CIED patient who is pacing dependent. PMID- 29344924 TI - Reliability of the 123I-mIBG heart/mediastinum ratio: Results of a multicenter test-retest reproducibility study. AB - A quantitative measurement, the Heart-to-Mediastinum (H/M) ratio of counts derived from a planar acquisition approximately 4 hours after injection of 123I mIBG, is a strong predictor of outcomes in patients with stable class II-III heart failure and LVEF <= 35%. This study assessed the test-retest reproducibility of the H/M ratio in such patients. 47 subjects with class II-III systolic heart failure and LVEF <= 35% were tested at two time intervals separated by 5 to 14 days. Subjects were imaged twice on the same camera using the same radionuclide dose. Images were sent to a core analysis lab, where three nuclear technologists independently determined the H/M ratios. The primary endpoint was test-retest H/M ratio reproducibility calculated as the absolute difference in mean value determined by the three readers. Mean subject age was 65 +/- 12 years, 85% were male, and mean BMI was 29 +/- 6 kg/m2. Mean injected activity was 10.18 +/- 0.43 mCi for first dose and 10.09 +/- 0.52 mCi for the second dose. The mean and SD values for first and repeat studies were almost identical: the 95% confidence interval of the mean test-retest difference was 0.055 to 0.076. Bland-Altman plots showed no systematic effect of the H/M ratio on the magnitude of the difference between replicate measurements. Inter-reader measurements were nearly identical. There were no serious adverse events despite exposure to 123I-mIBG on 2 occasions in a short time period. The Heart-to Mediastinum ratio of 123I-mIBG is a consistent and highly reproducible measurement in stable Class II to III heart failure patients. PMID- 29344925 TI - Translating visual information into action predictions: Statistical learning in action and nonaction contexts. AB - Humans are sensitive to the statistical regularities in action sequences carried out by others. In the present eyetracking study, we investigated whether this sensitivity can support the prediction of upcoming actions when observing unfamiliar action sequences. In two between-subjects conditions, we examined whether observers would be more sensitive to statistical regularities in sequences performed by a human agent versus self-propelled 'ghost' events. Secondly, we investigated whether regularities are learned better when they are associated with contingent effects. Both implicit and explicit measures of learning were compared between agent and ghost conditions. Implicit learning was measured via predictive eye movements to upcoming actions or events, and explicit learning was measured via both uninstructed reproduction of the action sequences and verbal reports of the regularities. The findings revealed that participants, regardless of condition, readily learned the regularities and made correct predictive eye movements to upcoming events during online observation. However, different patterns of explicit-learning outcomes emerged following observation: Participants were most likely to re-create the sequence regularities and to verbally report them when they had observed an actor create a contingent effect. These results suggest that the shift from implicit predictions to explicit knowledge of what has been learned is facilitated when observers perceive another agent's actions and when these actions cause effects. These findings are discussed with respect to the potential role of the motor system in modulating how statistical regularities are learned and used to modify behavior. PMID- 29344926 TI - The Mexican Drug War and Early-Life Health: The Impact of Violent Crime on Birth Outcomes. AB - This study examines the relationship between exposure to violent crime in utero and birth weight using longitudinal data from a household survey conducted in Mexico. Controlling for selective migration and fertility, the results suggest that early gestational exposure to the recent escalation of the Mexican Drug War is associated with a substantial decrease in birth weight. This association is especially pronounced among children born to mothers of low socioeconomic status and among children born to mothers who score poorly on a mental health index. PMID- 29344927 TI - Correction to: Protein Biomarkers and Neuroproteomics Characterization of Microvesicles/Exosomes from Human Cerebrospinal Fluid Following Traumatic Brain Injury. AB - The original version of this article unfortunately contained a typographical error on Author's name "Firas Kobessiy". This should be corrected as "Firas Kobeissy". PMID- 29344929 TI - Pla2g6 Deficiency in Zebrafish Leads to Dopaminergic Cell Death, Axonal Degeneration, Increased beta-Synuclein Expression, and Defects in Brain Functions and Pathways. AB - This study aimed to gain insights into the pathophysiology underlying PLA2G6 associated neurodegeneration that is implicated in three different neurological disorders, suggesting that other, unknown genetic or environmental factors might contribute to its wide phenotypic expression. To accomplish this, we downregulated the function of pla2g6 in the zebrafish nervous system, performed parkinsonism-related phenotypic characterization, and determined the effects of gene regulation upon the loss of pla2g6 function by using RNA sequencing and downstream analyses. Pla2g6 deficiency resulted in axonal degeneration, dopaminergic and motor neuron cell loss, and increased beta-synuclein expression. We also observed that many of the identified, differentially expressed genes were implicated in other brain disorders, which might explain the variable phenotypic expression of pla2g6-associated disease, and found that top enriched canonical pathways included those already known or suggested to play a major role in the pathogenesis of Parkinson's disease. Our data support that pla2g6 is relevant for cranial motor development with significant implications in the pathophysiology underlying Parkinson's disease. PMID- 29344928 TI - Morphine-Mediated Brain Region-Specific Astrocytosis Involves the ER Stress Autophagy Axis. AB - A recent study from our lab has revealed a link between morphine-mediated autophagy and synaptic impairment. The current study was aimed at investigating whether morphine-mediated activation of astrocytes involved the ER stress/autophagy axis. Our in vitro findings demonstrated upregulation of GFAP indicating astrocyte activation with a concomitant increase in the production of proinflammatory cytokines in morphine-exposed human astrocytes. Using both pharmacological and gene-silencing approaches, it was demonstrated that morphine mediated defective autophagy involved upstream activation of ER stress with subsequent downstream astrocyte activation via the MU-opioid receptor (MOR). In vivo validation demonstrated preferential activation of ER stress/autophagy axis in the areas of the brain not associated with pain such as the basal ganglia, frontal cortex, occipital cortex, and the cerebellum of morphine-dependent rhesus macaques, and this correlated with increased astrocyte activation and neuroinflammation. Interventions aimed at blocking either the MOR or ER stress could thus likely be developed as promising therapeutic targets for abrogating morphine-mediated astrocytosis. PMID- 29344930 TI - Maternal prenatal stress and infant DNA methylation: A systematic review. AB - Maternal prenatal stress has been linked to a variety of infant postnatal outcomes, partially through alterations in fetal HPA axis functioning; yet the underlying pathobiology remains elusive. Current literature posits DNA methylation as a candidate mechanism through which maternal prenatal stress can influence fetal HPA axis functioning. The goal of this systematic review was to summarize the literature examining the associations among maternal prenatal stress, DNA methylation of commonly studied HPA axis candidate genes, and infant HPA axis functioning. Results from the review provided evidence for a link between various maternal prenatal stressors, NR3C1 methylation, and infant stress reactivity, but findings among other genes were limited, with mixed results. An original study quality review tool revealed that a majority of studies in the review are adequate, and emphasizes the need for future research to consider study quality when interpreting research findings. PMID- 29344932 TI - Mothers' Early Mind-Mindedness Predicts Educational Attainment in Socially and Economically Disadvantaged British Children. AB - Relations between mothers' mind-mindedness (appropriate and nonattuned mind related comments) at 8 months (N = 206), and children's educational attainment at ages 7 (n = 158) and 11 (n = 156) were investigated in a British sample. Appropriate mind-related comments were positively correlated with reading and mathematics performance at both ages but only in the low-socioeconomic status (SES) group. Path analyses showed that in the low-SES group, appropriate mind related comments directly predicted age-11 reading performance, with age-4 verbal ability mediating the relation between appropriate mind-related comments and age 7 reading. In contrast, maternal sensitivity and infant-mother attachment security did not predict children's educational attainment. These findings are discussed in terms of genetic and environmental contributions to reading and mathematics performance. PMID- 29344933 TI - Unexpected terrestrial hand posture diversity in wild mountain gorillas. AB - OBJECTIVES: Gorillas, along with chimpanzees and bonobos, are ubiquitously described as 'knuckle-walkers.' Consequently, knuckle-walking (KW) has been featured pre-eminently in hypotheses of the pre-bipedal locomotor behavior of hominins and in the evolution of locomotor behavior in apes. However, anecdotal and behavioral accounts suggest that mountain gorillas may utilize a more complex repertoire of hand postures, which could alter current interpretations of African ape locomotion and its role in the emergence of human bipedalism. Here we documented hand postures during terrestrial locomotion in wild mountain gorillas to investigate the frequency with which KW and other hand postures are utilized in the wild. MATERIALS AND METHODS: Multiple high-speed cameras were used to record bouts of terrestrial locomotion of 77 habituated mountain gorillas at Bwindi Impenetrable National Park (Uganda) and Volcanoes National Park (Rwanda). RESULTS: We captured high-speed video of hand contacts in 8% of the world's population of mountain gorillas. Our results reveal that nearly 40% of these gorillas used "non-KW" hand postures, and these hand postures constituted 15% of all hand contacts. Some of these "non-KW" hand postures have never been documented in gorillas, yet match hand postures previously identified in orangutans. DISCUSSION: These results highlight a previously unrecognized level of hand postural diversity in gorillas, and perhaps great apes generally. Although present at lower frequencies than KW, we suggest that the possession of multiple, versatile hand postures present in wild mountain gorillas may represent a shared feature of the African ape and human clade (or even great ape clade) rather than KW per se. PMID- 29344934 TI - Clinical impact of treatment delay in pancreatic cancer patients revisited. PMID- 29344931 TI - Relationship between body mass, lean mass, fat mass, and limb bone cross sectional geometry: Implications for estimating body mass and physique from the skeleton. AB - OBJECTIVES: Estimating body mass from skeletal dimensions is widely practiced, but methods for estimating its components (lean and fat mass) are poorly developed. The ability to estimate these characteristics would offer new insights into the evolution of body composition and its variation relative to past and present health. This study investigates the potential of long bone cross sectional properties as predictors of body, lean, and fat mass. MATERIALS AND METHODS: Humerus, femur and tibia midshaft cross-sectional properties were measured by peripheral quantitative computed tomography in sample of young adult women (n = 105) characterized by a range of activity levels. Body composition was estimated from bioimpedance analysis. RESULTS: Lean mass correlated most strongly with both upper and lower limb bone properties (r values up to 0.74), while fat mass showed weak correlations (r <= 0.29). Estimation equations generated from tibial midshaft properties indicated that lean mass could be estimated relatively reliably, with some improvement using logged data and including bone length in the models (minimum standard error of estimate = 8.9%). Body mass prediction was less reliable and fat mass only poorly predicted (standard errors of estimate >=11.9% and >33%, respectively). DISCUSSION: Lean mass can be predicted more reliably than body mass from limb bone cross-sectional properties. The results highlight the potential for studying evolutionary trends in lean mass from skeletal remains, and have implications for understanding the relationship between bone morphology and body mass or composition. PMID- 29344935 TI - Progressive topological disorganization of brain network in focal epilepsy. AB - OBJECTIVE: Increasing evidence has suggested that epilepsy is a network disease. Graph theory is a mathematical tool that allows for the analysis and quantification of the brain network. We aimed to evaluate the influences of duration of epilepsy on the topological organization of brain network in focal epilepsy patients with normal MRI using the graph theoretical analysis based on diffusion tenor imaging. METHODS: We prospectively enrolled 66 patients with focal epilepsy (18/66 patients were newly diagnosed) and 84 healthy subjects. All of the patients with epilepsy had normal MRI on visual inspection. All of the subjects underwent diffusion tensor imaging that was analyzed using graph theory to obtain network measures. RESULTS: The measures of characteristic path length and small-worldness in the patients with focal epilepsy were significantly decreased, even after multiple corrections (P < .01). Moreover, the measures including mean clustering coefficient and global efficiency in the patients with epilepsy had strong tendency to decrease compared to those in healthy subjects (P = .0153 and P = .0138, respectively). When comparing the measures among the patients with newly diagnosed/chronic epilepsy and healthy subjects using ANOVA, the characteristic path length (P = .006), small-worldness (P = .032), and global efficiency (P = .004) were significantly different. In addition, the duration of epilepsy was negatively correlated with global efficiency (r = -.249, P = .0454). CONCLUSIONS: We newly found a progressive topological disorganization of the brain network in focal epilepsy. In addition, we demonstrated disrupted topological organization in focal epilepsy, shifting toward a more random state. PMID- 29344936 TI - Author's reply to : Pancreatic cancer : Extension of tumor is associated with timeliness of care and with survival in a population-based study. PMID- 29344937 TI - NDUFAF3 variants that disrupt mitochondrial complex I assembly may associate with cavitating leukoencephalopathy. AB - Genetic abnormalities in mitochondrial complex assembling factors are associated with leukoencephalopathy. We present a 1-year-old girl with consciousness disturbance after a respiratory infection. Brain MRI revealed leukoencephalopathy with bilaterally symmetrical hyperintensity in the substantia nigra, medial thalamic nuclei, and basal nuclei, as well as cavities in the cerebral white matter and corpus callosum. Lactate levels in the spinal fluid were high, while magnetic resonance spectroscopy of the cerebral white matter and basal nuclei showed high peak lactate levels, suggesting mitochondrial dysfunction. The respiratory enzyme activity of complex I was reduced to 17% to 21% in skeletal muscle. Whole exome sequencing identified compound heterozygous variations in NDUFAF3, involved in the assembly of mitochondrial complex I (c.342_343insGTG:p.117Valdup, c.505C > A:p.Pro169Thr). Two-dimensional, blue native polyacrylamide gel electrophoresis (PAGE) and sodium dodecyl sulfate-PAGE revealed reductions in Q-module (NDUFS2, NDUFS3, and NDUFA9) and P-module (NDUFB10 and NDUFB11) subunits, indicating disruption of mitochondrial complex I assembly. Our report expands the spectrum of clinical phenotypes associated with pathogenic variants of NDUFAF3. PMID- 29344938 TI - A clinical audit on the efficacy and safety of uterine artery embolisation for symptomatic adenomyosis: Results in 117 women. AB - BACKGROUND: Uterine artery embolisation (UAE) is a possible uterine-sparing treatment option for women with unsuccessful conservative management for adenomyosis-related heavy menstrual bleeding (HMB) and dysmenorrhoea. AIM: To conduct a clinical audit on the efficacy and safety of UAE for symptomatic adenomyosis. MATERIALS AND METHODS: Retrospective review of 309 women who underwent UAE identified 117 women with magnetic resonance imaging features of adenomyosis (junctional zone thickness >= 12 mm). Overall success and HMB control were rated by women. Visual analogue scale (VAS) pain score, Uterine Fibroid Symptom and health-related Quality of Life (UFS-QoL) symptoms score and quality of life score were also used to measure outcome. RESULTS: One hundred and fifteen women (98%) were available for outcome evaluation. The mean follow-up was 22.5 months. Overall clinical success was achieved in 102/115 (89%) women; HMB control was achieved in 91/104 (88%); dysmenorrhea relief was achieved in 94/104 (90%), with VAS reduction of 6.13 (P < 0.001), Mean symptoms score was reduced from 58 to 17 at 12 months (P < 0.001) and QoL score increased from 42 to 88 at 12 months (P < 0.001). Hysterectomy was performed on six (5%) women. There were three (3%) mild groin haematomatas and three (3%) mild subacute complications (one possible endometritis, two urinary tract infections; all responded to oral antibiotics). Two women had unintended pregnancies which were complicated. CONCLUSIONS: In this clinical audit UAE was found to be an effective uterine-sparing option for women who had unsuccessful conservative treatments for adenomyosis-related HMB and dysmenorrhoea. There were no major complications. Two women had unintended pregnancies that were complicated. PMID- 29344939 TI - Socially informed dispersal in a territorial cooperative breeder. AB - Dispersal is a key process governing the dynamics of socially and spatially structured populations and involves three distinct stages: emigration, transience and settlement. At each stage, individuals have to make movement decisions, which are influenced by social, environmental and individual factors. Yet, a comprehensive understanding of the drivers that influence such decisions is still lacking, particularly for the transient stage during which free-living individuals are inherently difficult to follow. Social circumstances such as the likelihood of encountering conspecifics can be expected to strongly affects decision-making during dispersal, particularly in territorial species where encounters with resident conspecifics are antagonistic. Here, we analysed the movement trajectories of 47 dispersing coalitions of Kalahari meerkats Suricata suricatta through a landscape occupied by constantly monitored resident groups, while simultaneously taking into account environmental and individual characteristics. We used GPS locations collected on resident groups to create a georeferenced social landscape representing the likelihood of encountering resident groups. We used a step-selection function to infer the effect of social, environmental and individual covariates on habitat selection during dispersal. Finally, we created a temporal mismatch between the social landscape and the dispersal event of interest to identify the temporal scale at which dispersers perceive the social landscape. Including information about the social landscape considerably improved our representation of the dispersal trajectory compared to analyses that only accounted for environmental variables. The latter were only marginally selected or avoided by dispersers. Before leaving their natal territory, dispersers selected areas frequently used by their natal group. In contrast, after leaving their natal territory, they selectively used areas where they were less likely to encounter unrelated groups. This pattern was particularly marked in larger dispersing coalitions and when unrelated males were part of the dispersing coalition. Our results suggest that, in socially and spatially structured species, dispersers gather and process social information during dispersal, and that reducing risk of aggression from unrelated resident groups outweighs benefits derived from conspecific attraction. Finally, our work underlines the intimate link between the social structure of a population and dispersal, which affect each other reciprocally. PMID- 29344940 TI - Obstetric and neonatal outcomes for women intending to use immersion in water for labour and birth in Western Australia (2015-2016): A retrospective audit of clinical outcomes. AB - BACKGROUND: Research supports water immersion for labour if women are healthy, with no obstetric or medical risk factors. AIMS: To evaluate the obstetric and neonatal outcomes of women intending to use immersion in water for labour or birth. METHODS: Retrospective audit of clinical outcomes for women intending to labour or birth in water conducted between July 2015 and June 2016, at a tertiary maternity hospital in Western Australia. Obstetric and neonatal data were collected from medical records. Multivariable logistic regression was utilised to investigate women who laboured in water stratified by those who birthed in water. RESULTS: A total of 502 women intended to labour or birth in water; 199 (40%) did not and 303 (60%) did. The majority of women using water immersion (179 of 303; 59%) birthed in water. Multiparous women were more likely than primparous to birth in water (73% vs 46%; P < 0.001). Women who birthed in water were at increased odds of: a first stage labour <=240 min (odds ratio (OR) 2.56, 95% CI 1.34-4.87, P = 0.004); a second stage <=60 min (OR 3.53, 95% CI 1.82-6.84, P < 0.000); a third stage labour of 11-30 min (OR 2.15, 95% CI 1.23-3.78, P = 0.008); and having an intact perineum (OR 3.10, 95% CI 1.70-5.64, P < 0.000). CONCLUSION: Not all women who set out to labour and birth in water achieve their aim. There is a need for high-quality collaborative research into this option of labour and birth, so women can make an informed choice around this birth option. PMID- 29344941 TI - Systemic patterns of trabecular bone across the human and chimpanzee skeleton. AB - Aspects of trabecular bone architecture are thought to reflect regional loading of the skeleton, and thus differ between primate taxa with different locomotor and postural modes. However, there are several systemic factors that affect bone structure that could contribute to, or be the primary factor determining, interspecific differences in bone structure. These systemic factors include differences in genetic regulation, sensitivity to loading, hormone levels, diet, and activity levels. Improved understanding of inter-/intraspecific variability, and variability across the skeleton of an individual, is required to interpret properly potential functional signals present within trabecular structure. Using a whole-region method of analysis, we investigated trabecular structure throughout the skeleton of humans and chimpanzees. Trabecular bone volume fraction (BV/TV), degree of anisotropy (DA) and trabecular thickness (Tb.Th) were quantified from high resolution micro-computed tomographic scans of the humeral and femoral head, third metacarpal and third metatarsal head, distal tibia, talus and first thoracic vertebra. We found that BV/TV is, in most anatomical sites, significantly higher in chimpanzees than in humans, suggesting a systemic difference in trabecular structure unrelated to local loading regime. Differences in BV/TV between the forelimb and hindlimb did not clearly reflect differences in locomotor loading in the study taxa. There were no clear systemic differences between the taxa in DA and, as such, this parameter might reflect function and relate to differences in joint loading. This systemic approach reveals both the pattern of variability across the skeleton and between taxa, and helps identify those features of trabecular structure that may relate to joint function. PMID- 29344942 TI - Maternal care affects chicks' development differently according to sex in quail. AB - Maternal behavior is known to influence the behavioral development of young. Recently, it was demonstrated that maternal behavior also differed according to sex chicks and brood sex composition. So, here, we explored if these factors influenced behavioral development of chicks quail when they were brooded, and what characteristics of chicks and foster females could best explain this development. We studied three sets of chick pairs brooded by foster females: unisex male, unisex female, and mixed broods. We found that both emotivity profile and sociality depended on the sex: females were more reactive and less social than males. Females' emotivity profile was correlated with brood composition and foster female activity during maternal care. In males, only sociality was correlated with foster females' scores of aggressive rejection. Our results evidence that male and female chicks respond differentially to maternal behavior. This is discussed in terms of ecological and physiological constraints on development according to sex. PMID- 29344943 TI - An exploratory analysis of the joint contribution of HPA axis activation and motivation to early adolescent depressive symptoms. AB - This study examines the interactive contribution of the hypothalamic-pituitary adrenal (HPA) axis and approach-avoidance motivation systems to longitudinal changes in depressive symptoms across the adolescent transition. In the summer prior to, or fall of, 4th grade, 132 youth (68 girls; 64 boys; M age = 9.46 years) participated in a social challenge task and reported on their depressive symptoms. In the winter of 6th grade, youth completed a semi-structured interview of depression and a self-report measure of approach-avoidance motivations. Analyses revealed two profiles of risk for adolescent depressive symptoms, with some gender differences: (1) excessive disengagement, reflected in HPA underactivation along with low approach motivation or high avoidance motivation; and (2) excessive engagement, reflected in HPA overactivation along with high approach motivation. This research highlights the importance of a multi-system perspective on development, suggesting that the implications of HPA dysregulation for depressive symptoms are contingent on adolescents' tendencies toward approach versus avoidance. PMID- 29344945 TI - Cumulative risk exposure moderates the association between parasympathetic reactivity and inhibitory control in preschool-age children. AB - A child's cumulative risk for early exposure to stress has been linked to alterations of self-regulation outcomes, including neurobiological correlates of inhibitory control (IC). We examined whether children's ability to engage the parasympathetic nervous system impacts how risk affects IC. Children ages 3-5 years completed two laboratory measures of IC while respiratory sinus arrhythmia (RSA) was measured, indexing parasympathetic activity. Children with greater risk demonstrated lower IC; risk also moderated associations between RSA reactivity and IC. For children with less risk, greater RSA withdrawal during IC tasks was associated with better IC. In contrast, greater risk was associated with poor IC, regardless of RSA withdrawal. Effects of risk were more pronounced for cumulative than individual measures. Results suggest that cumulative risk exposure disrupts connectivity between physiological and behavioral components of self-regulation in early childhood. Parasympathetic withdrawal to cognitive tasks may be less relevant for performance in developmental samples experiencing greater life stress. PMID- 29344944 TI - Early temperamental fearfulness and the developmental trajectory of error-related brain activity. AB - The error-related negativity (ERN) is a negative deflection in the event-related potential waveform that occurs when an individual makes a mistake, and an increased ERN has been proposed as a biomarker for anxiety. However, previous work suggests that fearful children are characterized by a smaller ERN. We have proposed that this may reflect the changing phenomenology of anxiety across development. In the current study, we investigate this possibility using a longitudinal within-subject design. In 271 children, we completed observational measures of fear when the children were 3 years old, and then measured the ERN when the children were 6 and 9 years old. Fearful children were characterized by a decreased ERN when they were 6-year-old; by age 9, the same children who were fearful at age 3 had increased ERNs-a pattern that closely resembles that of anxious adolescents and adults. PMID- 29344946 TI - Preeclampsia and scleroderma: a prospective nationwide analysis. AB - INTRODUCTION: In a preliminary case-control study, women with scleroderma more frequently reported having had hypertensive complications during pregnancy compared with healthy women. MATERIAL AND METHODS: To prospectively investigate this possible association, we conducted a nation-wide cohort analysis of a major hypertensive complication during pregnancy, namely preeclampsia, and later scleroderma. Analyses were based on Danish register-based birth and hospital contact data on preeclampsia and scleroderma. We followed 778,758 women from time of giving birth between 1978 and 2010 to end of follow-up, emigration, death, or scleroderma diagnosis, whichever occurred first. The association was evaluated by incidence rate ratios, obtained in Poisson regression models. RESULTS: We report that preeclampsia is associated with a 69% significantly increased risk of later developing scleroderma. CONCLUSIONS: Though these findings do not impact clinical care directly, the association of preeclampsia with scleroderma underscores the significant relation of preeclampsia and other adverse pregnancy outcomes with later disease in women and should be included in patient counseling and education. PMID- 29344947 TI - Genome-wide population structure and admixture analysis reveals weak differentiation among Ugandan goat breeds. AB - Uganda has a large population of goats, predominantly from indigenous breeds reared in diverse production systems, whose existence is threatened by crossbreeding with exotic Boer goats. Knowledge about the genetic characteristics and relationships among these Ugandan goat breeds and the potential admixture with Boer goats is still limited. Using a medium-density single nucleotide polymorphism (SNP) panel, we assessed the genetic diversity, population structure and admixture in six goat breeds in Uganda: Boer, Karamojong, Kigezi, Mubende, Small East African and Sebei. All the animals had genotypes for about 46 105 SNPs after quality control. We found high proportions of polymorphic SNPs ranging from 0.885 (Kigezi) to 0.928 (Sebei). The overall mean observed (HO ) and expected (HE ) heterozygosity across breeds was 0.355 +/- 0.147 and 0.384 +/- 0.143 respectively. Principal components, genetic distances and admixture analyses revealed weak population sub-structuring among the breeds. Principal components separated Kigezi and weakly Small East African from other indigenous goats. Sebei and Karamojong were tightly entangled together, whereas Mubende occupied a more central position with high admixture from all other local breeds. The Boer breed showed a unique cluster from the Ugandan indigenous goat breeds. The results reflect common ancestry but also some level of geographical differentiation. admixture and f4 statistics revealed gene flow from Boer and varying levels of genetic admixture among the breeds. Generally, moderate to high levels of genetic variability were observed. Our findings provide useful insights into maintaining genetic diversity and designing appropriate breeding programs to exploit within breed diversity and heterozygote advantage in crossbreeding schemes. PMID- 29344948 TI - Glycation of ovalbumin after high-intensity ultrasound pretreatment: effects on conformation, immunoglobulin (Ig)G/IgE binding ability and antioxidant activity. AB - BACKGROUND: Ovalbumin (OVA), a protein with excellent nutritional and processing properties, is the major allergen of hen egg white. High-intensity ultrasound treatment increases the immunoglobulin (Ig)G and IgE binding abilities by unfolding the conformational structure of OVA. This may allow a modification of the IgG and IgE binding of OVA by combining high-intensity ultrasound with other methods, such as glycation, thus representing a promising method for the improvement of protein properties. RESULTS: Glycation with mannose (M) after ultrasound pretreatment at 0-600 W significantly reduced the IgG and IgE binding abilities and dramatically enhanced the antioxidant activity of OVA-M conjugates, with the lowest values of IgG and IgE binding and highest values of antioxidant capacity observed at 600 W. Polyacrylamide gel electrophoresis showed that the molecular weight of OVA-M conjugates with ultrasound pretreatment increased more than non-pretreatment sample, implying that ultrasound pretreatment promoted glycation. The alpha-helix content and ultraviolet absorption of OVA were observably increased, whereas beta-sheet content, intrinsic fluorescence and surface hydrophobicity were notably decreased, indicating that the tertiary and secondary structures of OVA were markedly changed. CONCLUSION: High-intensity ultrasound pretreatment can be conducive to reducing the binding abilities of IgG and IgE and enhancing the antioxidant activity of OVA-M conjugates. Therefore, glycation combined with high-intensity ultrasound pretreatment might be a promising method for producing hypo-allergenic and high-antioxidant OVA products. (c) 2018 Society of Chemical Industry. PMID- 29344949 TI - Flavour-active compounds in thermally treated yeast extracts. AB - BACKGROUND: Aroma-active compounds and non-volatile substances determine the characteristic aroma and taste of yeast extract (YE). Changes in the characteristic aroma and taste of YE due to thermal reaction are rarely studied, and the relationship between aroma-active compounds and non-volatile compounds is not yet clear. RESULTS: Non-volatile compounds identified by HPLC and LC/MS/MS were reduced by a rise in temperature, except for some amino acids. Peptides underwent degradation. In addition, a further rise in temperature above 120 degrees C resulted in a bitter and sour taste. Furans, pyrazines, thiophenes, thiazoles and some branched chain sulfur compounds were derived from GC/O/MS (SPME and SAFE). Sensory results revealed that the concentration of volatile compounds increased with an increase in temperature. The overall aroma profiles of YE at 25, 100 and 110 degrees C were buttery, green, nutty and meaty, while YE at 140 degrees C had a strong sour and sulfur odour. CONCLUSION: The non volatile compounds of YE were reduced and different volatile compounds were produced under different thermal treatments. There was a negative correlation between these two types of compounds. The different taste sensors and all precursors were correlated with each other. There are significant relationships between different odorants and aroma-active compounds of YE after thermal treatment. (c) 2018 Society of Chemical Industry. PMID- 29344950 TI - Systematic review and meta-analysis of left ventricular endocardial pacing in advanced heart failure: Clinically efficacious but at what cost? AB - INTRODUCTION: Cardiac resynchronization using a left ventricular (LV) epicardial lead placed in the coronary sinus is now routinely used in the management of heart failure patients. LV endocardial pacing is an alternative when this is not feasible, with outcomes data sparse. OBJECTIVE: To review the available evidence on the efficacy and safety of endocardial LV pacing via meta-analysis. METHODS: EMBASE, MEDLINE, and COCHRANE databases with the search term "endocardial biventricular pacing" or "endocardial cardiac resynchronization" or "left ventricular endocardial" or "endocardial left ventricular." Comparisons of pre and post-QRS width, LV ejection fraction (LVEF), and New York Heart Association (NYHA) functional classification was performed, and mean differences (and respective 95% confidence interval [CI]) applied as a measurement of treatment effect. RESULTS: Fifteen studies, including 362 patients, were selected. During a mean follow-up of 40 +/- 24.5 months, death occurred in 72 patients (11 per 100 patient-years). Significant improvements in LVEF (mean difference 7.9%, 95% CI 5 10%, P < 0.0001; I2 = 73%), QRS width (mean difference: -41% 95% -75 to -7%; P < 0.0001; I2 = 94%), and NYHA class (mean difference: -1.06, 95% CI -1.2 to -0.9, P < 0.0001; I2 = 60%), (all P < 0.0001) occurred. Stroke rate was 3.3-4.2 per 100 patient-years, which is higher than equivalent heart failure trial populations and recent meta-analysis that included small case series. CONCLUSION: LV endocardial lead implantation is a potentially efficacious alternative to CS lead placement, but preliminary data suggest a potentially higher risk of stroke during follow-up when compared to the expected incidence of stroke in similar cohorts of patients. PMID- 29344951 TI - The rise of a novel classification system for endometrial carcinoma; integration of molecular subclasses. AB - Endometrial cancer is a clinically heterogeneous disease and it is becoming increasingly clear that this heterogeneity may be a function of the diversity of the underlying molecular alterations. Recent large-scale genomic studies have revealed that endometrial cancer can be divided into at least four distinct molecular subtypes, with well-described underlying genomic aberrations. These subtypes can be reliably delineated and carry significant prognostic as well as predictive information; embracing and incorporating them into clinical practice is thus attractive. The road towards the integration of molecular features into current classification systems is not without obstacles. Collaborative studies engaging research teams from across the world are working to define pragmatic assays, improve risk stratification systems by combining molecular features and traditional clinicopathological parameters, and determine how molecular classification can be optimally utilized to direct patient care. Pathologists and clinicians caring for women with endometrial cancer need to engage with and understand the possibilities and limitations of this new approach, because integration of molecular classification of endometrial cancers is anticipated to become an essential part of gynaecological pathology practice. This review will describe the challenges in current systems of endometrial carcinoma classification, the evolution of new molecular technologies that define prognostically distinct molecular subtypes, and potential applications of molecular classification as a step towards precision medicine and refining care for individuals with the most common gynaecological cancer in the developed world. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29344952 TI - A Weaning Protocol for Venovenous Extracorporeal Membrane Oxygenation With a Review of the Literature. AB - Several articles have discussed the weaning process for venoarterial extracorporeal membrane oxygenation; however, there is no published report to outline a standardized approach for weaning a patient from venovenous extracorporeal membrane oxygenation (ECMO). This complex process requires an organized approach and a thorough understanding of ventilator management and ECMO physiology. The purpose of this article is to describe the venovenous ECMO weaning protocol used at our institution as well as provide a review of the literature. PMID- 29344953 TI - Established, emerging and elusive molecular targets in the treatment of lung cancer. AB - Although histological subtype still underlies tumour classification and treatment, the recognition that lung cancer is, largely, a genetic disease has prompted a push to reconfigure cancer taxonomies according to molecular criteria. In this review, we discuss established (e.g. EGFR, ALK, ROS1, and programmed cell death 1/programmed death-ligand 1), emerging (e.g. MET, RET, and NTRK) and elusive (e.g. TP53, KRAS, and MYC) molecular targets in the treatment of lung cancer. We synthesize a large and rapidly growing body of literature regarding the discovery and therapeutic inhibition of these targets in lung cancer. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29344955 TI - Development of an advanced two-dimensional microdosimetric detector based on THick Gas Electron Multipliers. AB - PURPOSE: The THick Gas Electron Multiplier (THGEM)-based tissue-equivalent proportional counter (TEPC) has been proven to be useful for microdosimetry due to its flexibility in varying the gaseous sensitive volume and achieving high multiplication gain. Aiming at measuring the spatial distribution of radiation dose for mixed neutron-gamma fields, an advanced two-dimensional (2D) THGEM-TEPC was designed and constructed at McMaster University which will enable us to overcome the operational limitation of the classical TEPCs, particularly for high dose rate fields. Compared to the traditional TEPCs, anode wire electrodes were replaced by a THGEM layer, which not only enhances the gas multiplication gain but also offers a flexible and convenient fabrication for building 2D detectors. METHOD & MATERIALS: The 2D THGEM TEPC consists of an array of 3 * 3 sensitive volumes, equivalent to nine individual TEPCs, each of which has a dimension of 5 mm diameter and length. Taking the overall cost, size and flexibility into account, to process nine detector signals simultaneously, a multi-input digital pulse processing system was developed by using modern microcontrollers, each of which is coupled with a 12-bit sampling ADC. RESULTS: Using the McMaster Tandetron 7 Li(p,n) accelerator neutron source, both fundamental detector performance, as well as neutron dosimetric response of the 2D THGEM-TEPC, has been extensively investigated and compared to the data acquired by a standard spherical TEPC. It was shown that the microdosimetric response and the measured absorbed dose rate of the 2D THGEM detector developed in this study are comparable to the standard 1/2" TEPC which is commercially available. CONCLUSION: This study proved that the 2D TEPC based on the THGEM technology can be effectively used in microdosimetry studies and is a promising detector for measuring the absorbed dose rate distribution over an area in mixed radiation fields. This unique small gas cavity detector opens new possibilities in applications for high-intensity mixed radiation fields as well as in nanodosimetry. PMID- 29344954 TI - Mixed ductal-lobular carcinomas: evidence for progression from ductal to lobular morphology. AB - Mixed ductal-lobular carcinomas (MDLs) show both ductal and lobular morphology, and constitute an archetypal example of intratumoural morphological heterogeneity. The mechanisms underlying the coexistence of these different morphological entities are poorly understood, although theories include that these components either represent 'collision' of independent tumours or evolve from a common ancestor. We performed comprehensive clinicopathological analysis of a cohort of 82 MDLs, and found that: (1) MDLs more frequently coexist with ductal carcinoma in situ (DCIS) than with lobular carcinoma in situ (LCIS); (2) the E-cadherin-catenin complex was normal in the ductal component in 77.6% of tumours; and (3) in the lobular component, E-cadherin was almost always aberrantly located in the cytoplasm, in contrast to invasive lobular carcinoma (ILC), where E-cadherin is typically absent. Comparative genomic hybridization and multiregion whole exome sequencing of four representative cases revealed that all morphologically distinct components within an individual case were clonally related. The mutations identified varied between cases; those associated with a common clonal ancestry included BRCA2, TBX3, and TP53, whereas those associated with clonal divergence included CDH1 and ESR1. Together, these data support a model in which separate morphological components of MDLs arise from a common ancestor, and lobular morphology can arise via a ductal pathway of tumour progression. In MDLs that present with LCIS and DCIS, the clonal divergence probably occurs early, and is frequently associated with complete loss of E cadherin expression, as in ILC, whereas, in the majority of MDLs, which present with DCIS but not LCIS, direct clonal divergence from the ductal to the lobular phenotype occurs late in tumour evolution, and is associated with aberrant expression of E-cadherin. The mechanisms driving the phenotypic change may involve E-cadherin-catenin complex deregulation, but are yet to be fully elucidated, as there is significant intertumoural heterogeneity, and each case may have a unique molecular mechanism. (c) 2018 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland. PMID- 29344956 TI - Dispersal capacity of Haematopota spp. and Stomoxys calcitrans using a mark release-recapture approach in Belgium. AB - The dispersion potential of mechanical vectors is an important factor in the dissemination of pathogens. A mark-release-recapture experiment was implemented using two groups (unfed and partially fed) of the Tabanidae (Diptera) (Haematopota spp.) and biting Muscidae (Diptera) (Stomoxys calcitrans) most frequently collected in Belgium in order to evaluate their dispersion potential. In total, 2104 specimens of Haematopota spp. were collected directly from horses and 5396 S. calcitrans were collected in a cattle farm using hand-nets. Some of these insects were partially fed in vitro and all were subsequently coloured. Overall, 67 specimens of S. calcitrans (1.2%) and 17 of Haematopota spp. (0.8%) were recaptured directly on horses. Stomoxys calcitrans flew maximum distances of 150 m and 300 m when partially fed and unfed, respectively. Haematopota spp. travelled maximum distances of 100 m and 200 m when partially fed and unfed, respectively. Segregation measures seem essential in order to reduce the risk for pathogen transmission. A distance of 150 m appears to be the minimum required for segregation to avoid the risk for mechanical transmission, but in areas of higher vector density, this should probably be increased. PMID- 29344957 TI - Rapid differentiation of Chinese hop varieties (Humulus lupulus) using volatile fingerprinting by HS-SPME-GC-MS combined with multivariate statistical analysis. AB - BACKGROUND: Hops impart flavor to beer, with the volatile components characterizing the various hop varieties and qualities. Fingerprinting, especially flavor fingerprinting, is often used to identify 'flavor products' because inconsistencies in the description of flavor may lead to an incorrect definition of beer quality. Compared to flavor fingerprinting, volatile fingerprinting is simpler and easier. RESULTS: We performed volatile fingerprinting using head space-solid phase micro-extraction gas chromatography mass spectrometry combined with similarity analysis and principal component analysis (PCA) for evaluating and distinguishing between three major Chinese hops. Eighty-four volatiles were identified, which were classified into seven categories. Volatile fingerprinting based on similarity analysis did not yield any obvious result. By contrast, hop varieties and qualities were identified using volatile fingerprinting based on PCA. The potential variables explained the variance in the three hop varieties. In addition, the dendrogram and principal component score plot described the differences and classifications of hops. CONCLUSION: Volatile fingerprinting plus multivariate statistical analysis can rapidly differentiate between the different varieties and qualities of the three major Chinese hops. Furthermore, this method can be used as a reference in other fields. (c) 2018 Society of Chemical Industry. PMID- 29344958 TI - Protective effects of new antioxidant compositions of 4-methylcoumarins and related compounds with dl-alpha-tocopherol and l-ascorbic acid. AB - BACKGROUND: Coumarin derivatives possess a wide range of biological activities. By functionalization of the parent coumarin skeleton that has neither antioxidant nor biological activity, a series of new bio-antioxidants has been designed. RESULTS: New antioxidant compositions (equimolar binary and ternary mixtures) of eight 4-methylcoumarins and three related compounds have been tested and different effects between individual components have been observed: synergism (positive effect), additivism (summary effect) and antagonism (negative effect). Higher oxidative stability of the lipid substrate was obtained in the presence of the new antioxidant compositions of the studied compounds with dl-alpha tocopherol and l-ascorbic acid. The role of each component in the antioxidant compositions of ternary mixtures has been identified by using new equations composed by the authors. CONCLUSION: All ternary mixtures demonstrate synergism as a result of continuous regeneration of dl-alpha-tocopherol from the studied antioxidants and l-ascorbic acid. Theoretical calculations have been probed as indicators of the expected effects between the individual components in a binary mixture. (c) 2018 Society of Chemical Industry. PMID- 29344959 TI - Three gene phylogeny of the Thoreales (Rhodophyta) reveals high species diversity. AB - The freshwater red algal order Thoreales has triphasic life history composed of a diminutive diploid "Chantransia" stage, a distinctive macroscopic gametophyte with multi-axial growth and carposporophytes that develop on the gametophyte thallus. This order is comprised of two genera, Thorea and Nemalionopsis. Thorea has been widely reported with numerous species, whereas Nemalionopsis has been more rarely observed with only a few species described. DNA sequences from three loci (rbcL, cox1, and LSU) were used to examine the phylogenetic affinity of specimens collected from geographically distant locations including North America, South America, Europe, Pacific Islands, Southeast Asia, China, and India. Sixteen species of Thorea and two species of Nemalionopsis were recognized. Morphological observations confirmed the distinctness of the two genera and also provided some characters to distinguish species. However, many of the collections were in "Chantransia" stage rather than gametophyte stage, meaning that key diagnostic morphological characters were unavailable. Three new species are proposed primarily based on the DNA sequence data generated in this study, Thorea kokosinga-pueschelii, T. mauitukitukii, and T. quisqueyana. In addition to these newly described species, one DNA sequence from GenBank was not closely associated with other Thorea clades and may represent further diversity in the genus. Two species in Nemalionopsis are recognized, N. shawii and N. parkeri nom. et stat. nov. Thorea harbors more diversity than had been recognized by morphological data alone. Distribution data indicated that Nemalionopsis is common in the Pacific region, whereas Thorea is more globally distributed. Most species of Thorea have a regional distribution, but Thorea hispida appears to be cosmopolitan. PMID- 29344960 TI - Association of genetic variation in telomere-related SNP and telomerase with ventricular arrhythmias in ischemic cardiomyopathy. AB - BACKGROUND: Telomeres are known to provide genomic stability and telomere length has been associated with cardiovascular diseases. Moreover, a higher telomerase activity has been shown to be associated with ventricular arrhythmias (VA) in ischemic cardiomyopathy. Increasing evidence suggests that genetic variation in key telomere genes has an impact on telomerase activity. Each copy of the minor allele of SNP rs12696304, at a locus including TERC (telomerase), has been associated with ~75 base pairs reduction in mean telomere length likely mediated by an effect on TERC expression. We investigated the impact of genetic variation of this SNP on telomerase and its association with VA in ischemic cardiomyopathy patients. METHODS AND RESULTS: Ninety ischemic cardiomyopathy patients with primary prevention implantable cardioverter defibrillators (ICDs) were recruited. Thirty-five received appropriate ICD therapy for potentially fatal VA (cases), while the remaining 55 patients did not (controls). No significant differences in baseline demographics were seen between the groups. TS was measured by qPCR, telomerase activity by TRAP assay, and SNP genotyping with Taqman probes. Telomerase was highest in C homozygous allele and had a significant association with VA in this group only (C/C,C/G,G/G; P-value 0.04, 0.33, 0.43). CONCLUSION: The present study is the first to examine the association between telomerase, a SNP at a locus including TERC, and VA in ischemic cardiomyopathy patients. Homozygosity for C-allele significantly effects telomerase expression and its association with VA in this cohort. Large-scale prospective studies are required to determine if this genetic variation predisposes patients to greater arrhythmic tendency post-MI. PMID- 29344961 TI - In vivo evaluation of some biophysical parameters of the facial skin of Indian subjects living in Mumbai. Part II: Variability with age and gender. AB - BACKGROUND: A previously published work explored the diversity of some biophysical parameters (colour, elasticity, sebum production, skin microrelief, etc.) of the skin of 1204 Indian women, differently aged, living in four Indian cities (Chennai, Delhi, Kolkata and Mumbai). The present work aimed at completing such research by focusing on possible gender-related differences in the same skin parameters, between Indian men and women living in the same Indian city (Mumbai). METHODS: A total of 297 Indian men, differently aged (18-70y), were recruited in Mumbai, completing the panel of 303 women who were previously recruited in this same city. The same instrumental measurements of facial skin colour and its homogeneity, its mechanical properties, the sebum production, skin pores size, skin relief, etc. as in the previous work, were conducted. RESULTS: Overall, the facial skin colour shows a darker complexion in men as compared to women, on forehead, ocular region, lips, chin and cheek. The skin colour unevenness, which increases with age, was found higher in men, as compared to women. At comparable age, women and men present a same density of skin pores, whereas those of men appear larger, up to 55y. The deepness of Crow's feet wrinkles does not significantly differ between genders. A lesser extensibility was found on the cheeks of men. In men, the sebum production was found significantly higher than that of women at ages above 40y. CONCLUSIONS: This work indicates some commonly shared age-related skin features between women and men from Mumbai, despite slight different characteristics such as skin pigmentation, forehead/cheek colour contrast, mechanical properties and sebum production. PMID- 29344962 TI - Bridging the molecular divide: alcohol-induced downregulation of PAX9 and tumour development. AB - The pathogenesis of oro-oesophaeal squamous cell carcinoma is causally linked to the consumption of alcohol. Beyond the carcinogenic effects of ethanol and its metabolites via DNA damage, the precise mechanisms by which alcohol drives tumourigenesis remain to be fully elucidated. A novel contributor now revealed is aberrant differentiation and proliferation mediated by suppression of PAX9, a key regulator of normal squamous maturation in oro-oesophageal tissues. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29344963 TI - Refractory Pulmonary Edema and Upper Body Hypoxemia During Veno-Arterial Extracorporeal Membrane Oxygenation-A Case for Atrial Septostomy. AB - Veno-arterial extracorporeal membrane oxygenation (VA-ECMO) provides mechanical circulatory support for patients with advanced cardiogenic shock, facilitating myocardial recovery and limiting multi-organ failure. In patients with severely limited left ventricular ejection, peripheral VA-ECMO can further increase left ventricular and left atrial pressures (LAP). Failure to decompress the left heart under these circumstances can result in pulmonary edema and upper body hypoxemia, that is, myocardial and cerebral ischemia. Atrial septostomy can decrease LAP in these situations. However, the effects of atrial septostomy on upper body oxygenation remain unknown. After IRB approval, we identified 9 out of 242 adult VA-ECMO patients between January 2011 and June 2016 who also underwent atrial septostomy for refractory pulmonary edema/upper body hypoxemia. We analyzed LAP/pulmonary capillary wedge pressure (PCWP), right atrial pressures (RAPs), Pa O2 /Fi O2 ratios (blood samples from right radial artery), intrathoracic volume status, and resolution of pulmonary edema before and up to 48 h after septostomy. There were no procedure-related complications. Thirty-day survival was 44%. LAP/PCWP decreased by approximately 40% immediately following septostomy and remained so for at least 24 h. Pa O2 /Fi O2 ratios significantly increased from 0.49 (0.38-2.12) before to 5.35 (3.01-7.69) immediately after septostomy and continued so for 24 h, 6.6 (4.49-10.93). Radiographic measurements also indicated a significant improvement in thoracic intravascular volume status after atrial septostomy. Atrial septostomy reduces LAP and improves upper body oxygenation and intrathoracic vascular volume status in patients developing severe refractory pulmonary edema while undergoing peripheral VA-ECMO. Atrial septostomy therefore appears safe and suitable to reduce the risk of upper body ischemia under these circumstances. PMID- 29344964 TI - Recent advances and opportunities in proteomic analyses of tumour heterogeneity. AB - Solid tumour malignancies comprise a highly variable admixture of tumour and non tumour cellular populations, forming a complex cellular ecosystem and tumour microenvironment. This tumour heterogeneity is not incidental, and is known to correlate with poor patient prognosis for many cancer types. Indeed, non malignant cell populations, such as vascular endothelial and immune cells, are known to play key roles supporting and, in some cases, driving aggressive tumour biology, and represent targets of emerging therapeutics, such as antiangiogenesis and immune checkpoint inhibitors. The biochemical interplay between these cellular populations and how they contribute to molecular tumour heterogeneity remains enigmatic, particularly from the perspective of the tumour proteome. This review focuses on recent advances in proteomic methods, namely imaging mass spectrometry, single-cell proteomic techniques, and preanalytical sample processing, that are uniquely positioned to enable detailed analysis of discrete cellular populations within tumours to improve our understanding of tumour proteomic heterogeneity. This review further emphasizes the opportunity afforded by the application of these techniques to the analysis of tumour heterogeneity in formalin-fixed paraffin-embedded archival tumour tissues, as these represent an invaluable resource for retrospective analyses that is now routinely accessible, owing to recent technological and methodological advances in tumour tissue proteomics. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29344965 TI - Occupational therapy publications by Australian authors: A bibliometric analysis. AB - BACKGROUND: Bibliometrics refers to the collection and measurement of publishing and citation data configurations with the goal of quantifying the influence of scholarly activities. Advantages of bibliometrics include the generation of quantitative indicators of impact, productivity, quality and collaboration. Those parties who benefit from the results of bibliometric analysis include researchers, educators, journal publishers, employers and research funding bodies. METHODS: A bibliometric analysis was completed of peer-reviewed literature from 1991 to 2015, written by Australian occupational therapists (who were able to be identified as such), and indexed in the Science Citation Index Expanded (SCI-Expanded) or the Social Sciences Citation Index (SSCI) databases. "Occupational therapy" and "occupational therapist(s)" were used as keywords to search journal articles' publication title, abstract, author details, keywords and KeyWord Plus. RESULTS: Between 1991 and 2015, 752 peer-reviewed journal articles were published by Australian occupational therapy authors. On average, those articles had 3.7 authors, 35 references, and were nine pages in length. The top four journals in which Australian occupational therapists published were Australian Occupational Therapy Journal, British Journal of Occupational Therapy, American Journal of Occupational Therapy, and Physical and Occupational Therapy in Paediatrics. The four Australian institutions that generated the largest number of occupational therapy articles were the University of Queensland, University of Sydney, La Trobe University, and Monash University. The top four countries with whom Australian authors collaborated in manuscript writing were the United Kingdom, United States, Canada and Sweden. CONCLUSION: The volume of occupational therapy peer-reviewed literature has grown over the last two decades. Australian authors have and continue to make significant contributions to the occupational therapy body of knowledge nationally and internationally. PMID- 29344966 TI - Quorum-sensing molecule dihydroxy-2,3-pentanedione and its analogs as regulators of epithelial integrity. AB - BACKGROUND AND OBJECTIVE: Quorum-sensing molecules regulate the behavior of bacteria within biofilms and at the same time elicit an immune response in host tissues. Our aim was to investigate the regulatory role of dihydroxy-2,3 pentanedione (DPD), the precursor of universal autoinducer-2 (AI-2), and its analogs (ethyl-DPD, butyl-DPD and isobutyl-DPD) in the integrity of gingival epithelial cells. MATERIAL AND METHODS: Human gingival keratinocytes were incubated with four concentrations (10 MUmol L-1 , 1 MUmol L-1 , 100 nmol L-1 and 10 nmol L-1 ) of DPD and its analogs for 24 hours. The numbers of viable cells were determined using a proliferation kit, matrix metalloproteinase (MMP)-2 and 9 activities were determined by gelatin zymography, and expression of occludin protein and occludin mRNA were determined by western blotting and RT-qPCR, respectively. RESULTS: Increased cell proliferation was observed in gingival keratinocytes incubated with 100 nmol L-1 of butyl-DPD. MMP-9 activity was elevated in cells incubated with 10 MUmol L-1 of ethyl-DPD. On the other hand, MMP-2 activity did not show any significant change when gingival keratinocytes were incubated with or without DPD or analogs. Western blot analyses demonstrated five forms (105, 61, 52.2, 44 and 37 kDa) of occludin. Incubation with 1 MUmol L 1 and 100 nmol L-1 of DPD and with 10 nmol L-1 of ethyl-DPD increased dimeric (105 kDa) forms of occludin, while incubation with 100 nmol L-1 of isobutyl-DPD increased monomeric (61 kDa) forms. DPD and ethyl-DPD decreased, and 100 nmol L-1 of isobutyl-DPD and 10 nmol L-1 of butyl-DPD increased, the monomeric (52.2 kDa and 44 kDa) forms of occludin, whereas ethyl-DPD decreased and isobutyl-DPD increased, the low-molecular-weight (37 kDa) forms. According to RT-qPCR analysis, the exposure of gingival keratinocytes to 10 MUmol L-1 of isobutyl-DPD up-regulated expression of occludin. CONCLUSION: The results indicate that isobutyl-DPD has the potential to enhance the integrity of the epithelium by stimulating the formation of occluding, without affecting the proliferation or gelatinolytic enzyme activities of the exposed cells. The modulatory effect of an AI-2 analog on the epithelial cell response is shown for the first time. PMID- 29344967 TI - Predictive neuromechanical simulations indicate why walking performance declines with ageing. AB - KEY POINTS: Although the natural decline in walking performance with ageing affects the quality of life of a growing elderly population, its physiological origins remain unknown. By using predictive neuromechanical simulations of human walking with age-related neuro-musculo-skeletal changes, we find evidence that the loss of muscle strength and muscle contraction speed dominantly contribute to the reduced walking economy and speed. The findings imply that focusing on recovering these muscular changes may be the only effective way to improve performance in elderly walking. More generally, the work is of interest for investigating the physiological causes of altered gait due to age, injury and disorders. ABSTRACT: Healthy elderly people walk slower and energetically less efficiently than young adults. This decline in walking performance lowers the quality of life for a growing ageing population, and understanding its physiological origin is critical for devising interventions that can delay or revert it. However, the origin of the decline in walking performance remains unknown, as ageing produces a range of physiological changes whose individual effects on gait are difficult to separate in experiments with human subjects. Here we use a predictive neuromechanical model to separately address the effects of common age-related changes to the skeletal, muscular and nervous systems. We find in computer simulations of this model that the combined changes produce gait consistent with elderly walking and that mainly the loss of muscle strength and mass reduces energy efficiency. In addition, we find that the slower preferred walking speed of elderly people emerges in the simulations when adapting to muscle fatigue, again mainly caused by muscle-related changes. The results suggest that a focus on recovering these muscular changes may be the only effective way to improve performance in elderly walking. PMID- 29344968 TI - A novel nested polymerase chain reaction assay targeting Plasmodium mitochondrial DNA in field-collected Anopheles mosquitoes. AB - Sensitive techniques for the detection of Plasmodium (Aconoidasida: Plasmodiidae) sporozoites in field-collected malaria vectors are essential for the correct assessment of risk for malaria transmission. A real-time polymerase chain reaction (RT-PCR) protocol targeting Plasmodium mtDNA proved to be much more sensitive in detecting sporozoites in mosquitoes than the widely used enzyme linked immunosorbent assay targeting Plasmodium circumsporozoite protein (CSP ELISA). However, because of the relatively high costs associated with equipment and reagents, RT-PCRs are mostly used to assess the outcomes of experimental infections in the frame of research experiments, rather than in routine monitoring of mosquito infection in the field. The present authors developed a novel mtDNA-based nested PCR protocol, modified from a loop-mediated isothermal amplification (LAMP) assay for Plasmodium recognition in human blood samples, and compared its performance with that of routinely used CSP-ELISAs in field collected Anopheles coluzzii (Diptera: Culicidae) samples. The nested PCR showed 1.4-fold higher sensitivity than the CSP-ELISA. However, nested PCR results obtained in two laboratories and in different replicates within the same laboratory were not 100% consistent, probably because the copy number of amplifiable Plasmodium mtDNA was close in some specimens to the threshold of nested PCR sensitivity. This implies that Plasmodium-positive specimens should be confirmed by a second nested PCR to avoid false positives. Overall, the results emphasize the need to use molecular approaches to obtain accurate estimates of the actual level of Plasmodium circulation within malaria vector populations. PMID- 29344969 TI - Media experiences and associations with mental health among the bereaved of the MH17-disaster: A latent profile analysis. AB - Research has shown that the amount of media exposure is associated with post event mental health problems. Whether bereaved individuals have negative experiences with media reports and whether they are associated with post-event mental health is unclear. This study evaluated these experiences and associations following the MH17-disaster. How media reports were experienced (nine topics, modified MAS), depression symptoms (QIDS-SR), functional problems (WSAS) and event-related coping-self-efficacy (CSE) were assessed about one year post disaster (May-August 2015) among Dutch bereaved (N = 152). A substantial minority reported negative experiences such as reports made me angry (30%) and made me sad (48%). Latent profile analysis with symptoms, problems and coping self-efficacy as indicators, identified four classes of post-disaster mental health: a Well functioning(class 1) , 35.1%; a Mild-problems(class 2) , 30.4%; a Sub clinical(class 3) , 27.0%; and a Clinical(class 4) , 7.4%. Differences in symptoms, problems and coping self-efficacy levels between classes were large according to Cohen's ds. Multivariate logistic regression (MLR) showed that the Clinical(class 4) compared to the Well-functioning(class 1) , more often that felt that reports strongly "embarrassed me," "made me feel sad," "filled me with fear" and "served as a magnifying glass." Future research should assess opportunities and effects of limiting media consumption. PMID- 29344970 TI - Carbon allocation to major metabolites in illuminated leaves is not just proportional to photosynthesis when gaseous conditions (CO2 and O2 ) vary. AB - In gas-exchange experiments, manipulating CO2 and O2 is commonly used to change the balance between carboxylation and oxygenation. Downstream metabolism (utilization of photosynthetic and photorespiratory products) may also be affected by gaseous conditions but this is not well documented. Here, we took advantage of sunflower as a model species, which accumulates chlorogenate in addition to sugars and amino acids (glutamate, alanine, glycine and serine). We performed isotopic labelling with 13 CO2 under different CO2 /O2 conditions, and determined 13 C contents to compute 13 C-allocation patterns and build-up rates. The 13 C content in major metabolites was not found to be a constant proportion of net fixed carbon but, rather, changed dramatically with CO2 and O2 . Alanine typically accumulated at low O2 (hypoxic response) while photorespiratory intermediates accumulated under ambient conditions and at high photorespiration, glycerate accumulation exceeding serine and glycine build-up. Chlorogenate synthesis was relatively more important under normal conditions and at high CO2 and its synthesis was driven by phosphoenolpyruvate de novo synthesis. These findings demonstrate that carbon allocation to metabolites other than photosynthetic end products is affected by gaseous conditions and therefore the photosynthetic yield of net nitrogen assimilation varies, being minimal at high CO2 and maximal at high O2 . PMID- 29344971 TI - Clear cell carcinomas of the ovary and kidney: clarity through genomics. AB - Clear cell ovarian carcinoma (CCOC) and clear cell renal cell carcinoma (ccRCC) both feature clear cytoplasm, owing to the accumulation of cytoplasmic glycogen. Genomic studies have demonstrated several mutational similarities between these two diseases, including frequent alterations in the chromatin remodelling SWI-SNF and cellular proliferation phosphoinositide 3-kinase-mammalian target of rapamycin pathways, as well as a shared hypoxia-like mRNA expression signature. Although many targeted treatment options have been approved for advanced-stage ccRCC, CCOC patients are still treated with conventional platinum and taxane chemotherapy, to which they are resistant. To determine the extent of similarity between these malignancies, we performed unsupervised clustering of mRNA expression data from these cancers. This review highlights the similarities and differences between these two clear cell carcinomas to facilitate knowledge translation within future research efforts. Copyright (c) 2018 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd. PMID- 29344972 TI - A patient with chronic labial oedema and nodular palatal lesions. PMID- 29344973 TI - Use of Hysterosalpingo-Foam Sonography for Assessment of the Efficacy of Essure Hysteroscopic Sterilization. AB - OBJECTIVES: Hysterosalpingo-foam sonography (HyFoSy) has been suggested to be a possible less invasive alternative to hysterosalpingography (HSG), which is the reference standard for confirmation of tubal occlusion after Essure (Bayer AG, Leverkusen, Germany) hysteroscopic sterilization. The purpose of our study was to evaluate the accuracy of HyFoSy compared to HSG for confirmation of tubal occlusion after Essure hysteroscopic sterilization. METHODS: A prospective study included 90 patients who underwent Essure hysteroscopic sterilization. Twelve weeks after the sterilization, 2-dimensional transvaginal ultrasonography was performed to assess the microinsert position and was followed by HyFoSy and HSG for evaluation of tubal occlusion. Patients with patent fallopian tubes on HSG were scheduled for additional HSG procedures at 3-month intervals until tubal occlusion was documented. RESULTS: Of 90 enrolled patients, 86 patients with 170 fallopian tubes underwent the complete imaging protocol. Tubal occlusion was evaluated by HyFoSy as an index test and HSG as a reference standard. The accuracy of HyFoSy was 97.1% (95% confidence interval [CI], 93%-99%). The sensitivity and specificity were 100% (95% CI, 97%-100%) and 54.6% (95% CI, 23% 83%), whereas the positive and negative predictive values were 97.0% (95% CI, 93% 99%) and 100% (95% CI, 42%-100%), respectively. No long-term complications were reported for HyFoSy or HSG. CONCLUSIONS: Given that the concordance rate for tubal occlusion between HyFoSy and HSG was not 100%, an occluded fallopian tube on HyFoSy should be confirmed by HSG, which remains the reference standard for confirmation of tubal occlusion after Essure hysteroscopic sterilization. PMID- 29344974 TI - Utilizing selected social determinants and behaviors to predict obesity in military personnel. AB - OBJECTIVE: Like the general population, the military is experiencing an increase in the number of obese personnel. This study aimed to identify predictors of obesity by assessing social determinants of health and behaviors in relation to Body Mass Index (BMI), and to use these variables to build a model to predict obesity in Active Duty Military Personnel (ADMP). Predicting obesity would allow early intervention of at risk personnel, potentially reducing the number of ADMP who are separated from the service for failing to meet weight standards. DESIGN: A secondary data analysis of the 2011 Survey of Health-Related Behaviors of Active Duty Military Personnel was performed. The survey included 39,197 responders. MEASURES: Descriptive statistics, bivariate analyses, and logistic regression analysis were conducted to examine the relationship between social determinants of health, behaviors in relation to Healthy People 2020 recommendations, and obesity. Moderator variables were used to determine what affects the direction and/or strength of the relationship between the independent variables (e.g., social determinants and behaviors) and the outcome variable of obesity. RESULTS: At the bivariate level, these variables mirror existing research. However, logistic regression identified few statistically significant obesogenic lifestyle behaviors in relation to Healthy People 2020 recommendations and a weak interactive effect between the variables. CONCLUSION: The low number of significant variables identified to predict obesity highlights the multifactorial nature of obesity making it difficult for weight-loss interventions to be effective if limited to one group or one specific behavior. PMID- 29344976 TI - Role of Elastography in Axillary Examination of Patients With Breast Cancer. AB - OBJECTIVES: This study aimed at exploring the role of ultrasound (US) elastography in the diagnosis of the axillary lymph node status in patients with breast cancer. METHODS: We analyzed 140 visible axillary lymph nodes on conventional US imaging. All of them underwent elastography. Five conventional US features were adopted to assess axillary lymph nodes: longitudinal diameter, longitudinal-to-transverse diameter ratio, cortical thickness, status of the hilum, and vascular pattern. As for elastography, the proportion of the hard area within each lymph node was estimated visually. The lymph node was defined as positive on elastography when the proportion was 50% or greater. Meanwhile, disjunctive and conjunctive combinations of US and elastography were adopted to evaluate the lymph nodes. The histopathologic diagnosis was regarded as the reference standard. RESULTS: The sensitivity, specificity, and accuracy were 76.92%, 87.10%, and 81.43%, respectively, for conventional US and 84.62%, 83.87%, and 84.29% for the disjunctive combination. The conjunctive combination had specificity of 100% and a positive predictive value of 100%, whereas the sensitivity was low. CONCLUSIONS: Elastography can improve the sensitivity when disjunctively combined with conventional US for diagnosis of the axillary lymph node status. Despite the low sensitivity, the conjunctive combination of US and elastography can improve the positive predictive value on a large scale. Elastography is a useful adjuvant tool in addition to conventional US for the preoperative assessment of axillary lymph nodes in patients with breast cancer. PMID- 29344977 TI - There Is No Place Like Home: Imitation and the Politics of Recognition in Bolivian Obstetric Care. AB - This article examines how efforts to "culturally adapt" birthing spaces in a rural Bolivian hospital are generating debates among doctors about what constitutes proper obstetric care. Working at the intersection of national and transnational projects, NGOs in Bolivia have remade the birthing rooms of some public health institutions to look more like a home, with the goal of making indigenous women feel more comfortable and encouraging them to come to the clinic to give birth. Yet narratives of transformation also obscure ongoing conditions of racial and gendered inequality in health services. I demonstrate how doctors' use of culturally adapted technologies enacts shifting affective relations-warm, cold, gentle, harsh-that draws on preoccupations with indigenous culture as a threat to maternal and infant life. In tracing practices of care, I argue that culturally adapted birthing in many ways extends historically rooted practices of doing biomedical work on indigenous bodies. PMID- 29344978 TI - Letter to the editor. PMID- 29344979 TI - In vivo estimation of transverse relaxation time constant (T2 ) of 17 human brain metabolites at 3T. AB - PURPOSE: The transverse relaxation times T2 of 17 metabolites in vivo at 3T is reported and region specific differences are addressed. METHODS: An echo-time series protocol was applied to one, two, or three volumes of interest with different fraction of white and gray matter including a total number of 106 healthy volunteers and acquiring a total number of 128 spectra. The data were fitted with the 2D fitting tool ProFit2, which included individual line shape modeling for all metabolites and allowed the T2 calculation of 28 moieties of 17 metabolites. RESULTS: The T2 of 10 metabolites and their moieties have been reported for the first time. Region specific T2 differences in white and gray matter enriched tissue occur in 16 of 17 metabolites examined including single resonance lines and coupled spin systems. CONCLUSION: The relaxation time T2 is regions specific and has to be considered when applying tissue composition correction for internal water referencing. Magn Reson Med 80:452-461, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29344975 TI - Extracellular matrix and traumatic brain injury. AB - The brain extracellular matrix (ECM) plays a crucial role in both the developing and adult brain by providing structural support and mediating cell-cell interactions. In this review, we focus on the major constituents of the ECM and how they function in both normal and injured brain, and summarize the changes in the composition of the ECM as well as how these changes either promote or inhibit recovery of function following traumatic brain injury (TBI). Modulation of ECM composition to facilitates neuronal survival, regeneration and axonal outgrowth is a potential therapeutic target for TBI treatment. PMID- 29344980 TI - Analytical validation of a new point-of-care assay for serum amyloid A in horses. AB - BACKGROUND: Serum amyloid A (SAA) is a major acute phase protein in horses. A new point-of-care (POC) test for SAA (Stablelab) is available, but studies evaluating its analytical accuracy are lacking. OBJECTIVES: To evaluate the analytical performance of the SAA POC test by 1) determining linearity and precision, 2) comparing results in whole blood with those in serum or plasma, and 3) comparing POC results with those obtained using a previously validated turbidimetric immunoassay (TIA). STUDY DESIGN: Assay validation. METHODS: Analytical validation of the POC test was done in accordance with American Society of Veterinary Clinical Pathology guidelines using residual equine serum/plasma and whole blood samples from the Clinical Pathology Laboratory at the University of California Davis. A TIA was used as the reference method. We also evaluated the effect of haematocrit (HCT). RESULTS: The POC test was linear for SAA concentrations of up to at least 1000 MUg/mL (r = 0.991). Intra-assay CVs were 13, 18 and 15% at high (782 MUg/mL), intermediate (116 MUg/mL) and low (64 MUg/mL) concentrations. Inter assay (inter-batch) CVs were 45, 14 and 15% at high (1372 MUg/mL), intermediate (140 MUg/mL) and low (56 MUg/mL) concentrations. SAA results in whole blood were significantly lower than those in serum/plasma (P = 0.0002), but were positively correlated (r = 0.908) and not affected by HCT (P = 0.261); proportional negative bias was observed in samples with SAA>500 MUg/mL. The difference between methods exceeded the 95% confidence interval of the combined imprecision of both methods (15%). MAIN LIMITATIONS: Analytical validation could not be performed in whole blood, the sample most likely to be used stall side. CONCLUSION: The POC test has acceptable accuracy and precision in equine serum/plasma with SAA concentrations of up to at least 1000 MUg/mL. Low inter-batch precision at high concentrations may affect serial measurements, and the use of the same test batch and sample type (serum/plasma or whole blood) is recommended. Comparison of results between the POC test and the TIA is not recommended. PMID- 29344981 TI - Severe and recurrent levamisole-induced cutaneous vasculopathy. PMID- 29344982 TI - Experience with pharmacologic leeching with bivalirudin for adjunct treatment of venous congestion of head and neck reconstructive flaps. AB - OBJECTIVES: The goal of this study was to review the feasibility of local bivalirudin injection for adjunct treatment of venous congestion of head and neck reconstructive flaps. METHODS: A retrospective chart review of patients who underwent bivalirudin treatment for venous congestion of head and neck reconstructive flaps in a single institution from September 1, 2012 to September 1, 2015 was undertaken. Individuals were treated with variable number of intradermal injections directly into the flap followed by a small skin incision to allow extended passive bleeding. The main outcome measure was improvement of flap congestion. RESULTS: Ten patients with free flap reconstruction (4 anterolateral thigh flaps, 2 pectoralis major flaps, 2 fibula osseocutaneous flaps, 1 supraclavicular flap, and 1 radial forearm free flap) of various head and neck defects underwent treatment with bivalirudin. Bivalirudin injections were utilized as adjunct therapy in 6 patients. Two individuals underwent alternate therapy for venous congestion immediately following injection and therefore the efficacy could not be assessed. Of the 8 remaining flaps, 4 developed partial necrosis, and 1 developed complete necrosis requiring additional reconstruction. Two individuals required blood transfusions during bivalirudin treatment. CONCLUSIONS: Bivalirudin is a safe and feasible adjunct therapy for treatment of flap congestion. It may serve as a useful alternative to traditional leech therapy, as bivalirudin negates the need for antibiotic prophylaxis, eliminates the psychological aversion associated with leech therapy, and avoids the potential for leech migration. Further work to determine the efficacy of bivalirudin to standard leech therapy is warranted. PMID- 29344984 TI - The editors respond to Drs Mowat and Sheehan. PMID- 29344983 TI - Anti-inflammatory effect of 4-methylcyclopentadecanone in rats submitted to ischemic stroke. AB - This study aimed to investigate the anti-inflammatory effect of 4 methylcyclopentadecanone (4-MCPC) in rats suffering from a cerebral ischemia/reperfusion (I/R) injury. In this study, the focal cerebral ischemia in rats was induced by middle cerebral artery occlusion (MCAO) for 2 h, and the rats were treated with 4-MCPC (8 mg/kg) just 0.5 h before reperfusion. The ischemic infarct volume was recorded 24 h after the MCAO. In addition, myeloperoxidase (MPO) activity and TNF-alpha and IL-1beta levels in the ischemic cerebral cortex were determined by ELISA, while nuclear translocation of NF-kappaB p65 subunit and expression of p-IkappaBalpha were investigated by Western blotting. Our results showed that 4-MCPC treatment decreased infarct volume significantly, compared with I/R group (16.8%+/-7.5% vs. 39.7%+/-10.9%); it reduced MPO activity (0.43 +/- 0.10 vs. 1.00 +/- 0.51 U/g) and expression levels of TNF-alpha (18.90 +/- 3.65 vs. 35.87 +/- 4.87 ng/g) and IL-1beta (1.68 +/- 0.23 vs. 2.67 +/- 0.38 ng/g) in ischemic brain tissues of rats. Further study revealed that 4-MCPC treatment markedly reduced nuclear translocation of NF-kappaB p65 subunit and expression of p-IkappaBalpha in ischemic cerebral cortex. Taken together, our results suggest that 4-MCPC protects against cerebral I/R injury and displays anti-inflammatory actions through inhibition of the NF-kappaB signal pathway. PMID- 29344985 TI - Probing the microscopic environment of 23 Na ions in brain tissue by MRI: On the accuracy of different sampling schemes for the determination of rapid, biexponential T2* decay at low signal-to-noise ratio. AB - PURPOSE: To investigate and to reduce influences on the determination of the short and long apparent transverse relaxation times ( T2,s*, T2,l*) of 23 Na in vivo with respect to signal sampling. METHODS: The accuracy of T2* determination was analyzed in simulations for five different sampling schemes. The influence of noise in the parameter fit was investigated for three different models. A dedicated sampling scheme was developed for brain parenchyma by numerically optimizing the parameter estimation. This scheme was compared in vivo to linear sampling at 7T. RESULTS: For the considered sampling schemes, T2,s* / T2,l* exhibit an average bias of 3% / 4% with a variation of 25% / 15% based on simulations with previously published T2* values. The accuracy could be improved with the optimized sampling scheme by strongly averaging the earliest sample. A fitting model with constant noise floor can increase accuracy while additional fitting of a noise term is only beneficial in case of sampling until late echo time > 80 ms. T2* values in white matter were determined to be T2,s* = 5.1 +/- 0.8 / 4.2 +/- 0.4 ms and T2,l* = 35.7 +/- 2.4 / 34.4 +/- 1.5 ms using linear/optimized sampling. CONCLUSION: Voxel-wise T2* determination of 23 Na is feasible in vivo. However, sampling and fitting methods have to be chosen carefully to retrieve accurate results. Magn Reson Med 80:571-584, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29344986 TI - Evaluation of bowel function in healthy children: untreated constipation is common. AB - AIM: We evaluated bowel function in healthy children with regard to gender and age. METHODS: The study was carried out in 2016 at a tertiary children's hospital. Healthy children aged 3.5 years to 15 years who were admitted to the hospital, siblings to patients or offspring of staff members were included. Validated self-report questionnaires and internally developed questions regarding obstructive outlet- and gas-related symptoms were used. RESULTS: A total of 310 participants (50% girls) were included, which corresponded to a 94% answer frequency. Respondents were divided into a younger age group (3.5 years to seven years), consisting of 135 children, and an older age group (eight years to 15 years), consisting of 175 children. Younger children reported more foul odours than older children (50% vs. 29%, p = 0.001) and more obstructive symptoms (21% vs. 10%, p = 0.01). There was no difference between the age groups regarding constipation (19% vs 16%, NS). Overall, 55% of those with constipation had no treatment for the condition, although they reported abdominal pain (51%) and problems with foul odours (57%). CONCLUSION: Healthy children frequently reported constipation, abdominal pain and gas-related problems, but treatment was rare. Overall, bowel function seemed to improve during childhood, although constipation remained largely untreated. PMID- 29344987 TI - Prior Uterine Evacuation and the Risk of Short Cervical Length: A Retrospective Cohort Study. AB - OBJECTIVES: To determine whether a prior uterine evacuation procedure is associated with an increased risk of short cervical length (<=20 mm) in women without prior spontaneous preterm birth. METHODS: This work was a retrospective cohort study from January 2012 to December 2014 of singletons without prior spontaneous preterm birth with cervical length screening between 18 weeks and 23 weeks 6 days. Women with a prior miscarriage/abortion were excluded if management (medical, surgical, or expectant) was not specified. Prior uterine evacuation was defined as dilation and curettage or dilation and evacuation of a spontaneous or induced abortion. The primary outcome was the risk of short cervical length (<=20 mm) among women with and without 1 of more prior uterine evacuations at any gestational age, assessed by the odds ratio and adjusted odds ratio for confounders. RESULTS: Of 2672 women included, 714 (27%) had at least 1 prior uterine evacuation. The overall incidence of short cervical length in the cohort was 1% (n = 27). Women with at least 1 prior uterine evacuation were more likely to be African American (64% versus 41%; P < .001), smoke (14% versus 8%; P < .001), have a higher body mass index (mean +/- SD, 28.1 +/- 7.1 versus 26.8 +/- 7.1 kg/m2 ; P < .001), and have had prior full-term delivery (60% versus 41%; P < .001). Women with at least 1 prior uterine evacuation had a significantly higher incidence of short cervical length (2% versus 0.7%; P = .003; odds ratio, 2.99 [95% confidence interval, 1.40-6.40]). After adjustment for confounders, prior uterine evacuation remained a source of increased risk of short cervical length (adjusted odds ratio, 2.63 [95% confidence interval, 1.19-5.80]). CONCLUSIONS: Although the overall incidence of short cervical length is low (1%-2%), women with at least 1 prior uterine evacuation have at least a 2-fold increased risk of a short second-trimester cervical length compared to women without a prior uterine evacuation. PMID- 29344988 TI - Recent advances in articular cartilage evaluation using computed tomography and magnetic resonance imaging. AB - Articular cartilage is a critical joint tissue and its evaluation remains a diagnostic challenge in horses. Coupled with a poor capacity for healing, early degenerative changes in articular cartilage are difficult to characterise using routine diagnostic imaging evaluations. Both computed tomography (CT) and magnetic resonance imaging (MRI) provide volumetric joint assessment and highlight morphological and quantitative properties of articular cartilage, improving assessment of this essential tissue. While the use of CT and MRI for joint evaluation is not new, there still remains a shortage of literature and scientific studies on the ability of these methods to evaluate articular cartilage in the horse. This review article summarises current CT and MRI techniques capable of characterising equine articular cartilage, highlights recent advances in these techniques and discusses the numerous methods studied in human subjects that have been minimally investigated in horses. Imaging techniques are presented in terms of their capabilities of offering morphological and quantitative evaluation along with a discussion of their benefits and limitations. Finally, it summarises the current state-of-the-art approaches and identifies unmet clinical imaging needs to propel the advancement of articular cartilage and joint imaging in the horse. PMID- 29344989 TI - Salmon calcitonin ameliorates migraine pain through modulation of CGRP release and dural mast cell degranulation in rats. AB - The exact mechanism of migraine pathophysiology still remains unclear due to the complex nature of migraine pain. Salmon calcitonin (SC) exhibits antinociceptive effects in the treatment of various pain conditions. In this study, we explored the mechanisms underlying the analgesic effect of salmon calcitonin on migrane pain using glyceryltrinitrate (GTN)-induced model of migraine and ex vivo meningeal preparations in rats. Rats were intraperitoneally administered saline, GTN (10 mg/kg), vehicle, saline + GTN, SC (50 MUg/kg) + GTN, and SC alone. Also, ex vivo meningeal preparations were applied topically 100 MUmol/L GTN, 50 MUmol/L SC, and SC + GTN. Calcitonin gene-related peptide (CGRP) contents of plasma, trigeminal neurons and superfusates were measured using enzyme-immunoassays. Dural mast cells were stained with toluidine blue. c-fos neuronal activity in trigeminal nucleus caudalis (TNC) sections were determined by immunohistochemical staining. The results showed that GTN triggered the increase in CGRP levels in plasma, trigeminal ganglion neurons and ex vivo meningeal preparations. Likewise, GTN-induced c-fos expression in TNC. In in vivo experiments, GTN caused dural mast cell degranulation, but similar effects were not seen in ex vivo experiments. Salmon calcitonin administration ameliorated GTN-induced migraine pain by reversing the increases induced by GTN. Our findings suggested that salmon calcitonin could alleviate the migraine-like pain by modulating CGRP release at different levels including the generation and conduction sites of migraine pain and mast cell behaviour in the dura mater. Therefore salmon calcitonin may be a new therapeutic choice in migraine pain relief. PMID- 29344990 TI - Self-gated golden-angle spiral 4D flow MRI. AB - PURPOSE: The acquisition of 4D flow magnetic resonance imaging (MRI) in cardiovascular applications has recently made large progress toward clinical feasibility. The need for simultaneous compensation of cardiac and breathing motion still poses a challenge for widespread clinical use. Especially, breathing motion, addressed by gating approaches, can lead to unpredictable and long scan times. The current work proposes a time-efficient self-gated 4D flow sequence that exploits up to 100% of the acquired data and operates at a predictable scan time. METHODS: A self-gated golden-angle spiral 4D flow sequence was implemented and tested in 10 volunteers. Data were retrospectively binned into respiratory and cardiac states and reconstructed using a conjugate-gradient sensitivity encoding reconstruction. Net flow curves, stroke volumes, and peak flow in the aorta were evaluated and compared to a conventional Cartesian 4D flow sequence. Additionally, flow quantities reconstructed from 50% to 100% of the self-gated 4D flow data were compared. RESULTS: Self-gating signals for respiratory and cardiac motion were extracted for all volunteers. Flow quantities were in agreement with the standard Cartesian scan. Mean differences in stroke volumes and peak flow of 7.6 +/- 11.5 and 4.0 +/- 79.9 mL/s were obtained, respectively. By retrospectively increasing breathing navigator efficiency while decreasing acquisition times (15:06-07:33 minutes), 50% of the acquired data were sufficient to measure stroke volumes with errors under 9.6 mL. CONCLUSION: The feasibility to acquire respiratory and cardiac self-gated 4D flow data at a predictable scan time was demonstrated. Magn Reson Med 80:904-913, 2018. (c) 2018 International Society for Magnetic Resonance in Medicine. PMID- 29344991 TI - Relationship between enamel bond fatigue durability and surface free-energy characteristics with universal adhesives. AB - The relationship between enamel bond fatigue durability and surface free-energy characteristics with universal adhesives was investigated. The initial shear bond strengths and shear fatigue strengths of five universal adhesives to enamel were determined with and without phosphoric acid pre-etching. The surface free-energy characteristics of adhesive-treated enamel with and without pre-etching were also determined. The initial shear bond strength and shear fatigue strength of universal adhesive to pre-etched enamel were higher than those to ground enamel. The initial shear bond strength and shear fatigue strength of universal adhesive to pre-etched enamel were material dependent, unlike those to ground enamel. The surface free-energy of the solid (gammaS ) and the hydrogen-bonding force (gammaSh) of universal adhesive-treated enamel were different depending on the adhesive, regardless of the presence or absence of pre-etching. The bond fatigue durability of universal adhesives was higher to pre-etched enamel than to ground enamel. In addition, the bond fatigue durability to pre-etched enamel was material dependent, unlike that to ground enamel. The surface free-energy characteristics of universal adhesive-treated enamel were influenced by the adhesive type, regardless of the presence or absence of pre-etching. The surface free-energy characteristics of universal adhesive-treated enamel were related to the results of the bond fatigue durability. PMID- 29344992 TI - An immunohistochemical score to predict the outcome for oral squamous cell carcinoma. AB - BACKGROUND: Oral cancer is a major public health problem worldwide, with a poor survival. Our aim was to evaluate several protein markers in oral squamous cell carcinomas (OSCC) and analyse their prognostic value on patient's survival. METHODS: We analysed the expression of EGFR, p53, p27, p16, cyclin D1, cyclin A2, COX-2, Ki-67, Bcl-2, VEGFR-1 and VEGFR-2, by immunohistochemistry on 67 primary OSCC. Cancer-specific survival (CSS) analysis was evaluated by the Cox regression model. RESULTS: Markers showed variable expression between 27.9% and 95.2%. In univariate analysis for CSS, we found that four of the tested markers, namely high expression of p53 (P = .001), EGFR (P = .003), cyclin A2 (P = .005) and low expression of p16 (P = .019), along with clinical stage (P < .001), tumour size (P < .001), presence of nodal metastasis (P < .001) and perineural permeation (P = .039) were related to decreased survival. On the basis of these results, we constructed an immunohistochemical score hinging on the possibility that any tumour could express none of these four markers (score 0), one or two markers (score 1) and three or more markers (score 2). In multivariable analysis, this immunohistochemical score revealed an independent prognostic value on cancer specific survival (P = .001; HR: 3.7: 95%CI 1.7-7.9). Moreover, we confirmed that in early-stage tumours (stage I or II) this score maintained its independent prognostic value (P = .025; HR: 7.9, 95%CI 1.3-49.1) on CSS. CONCLUSION: The expression of the markers p53, p16, EGFR and cyclin A in OSCC, combined to give an immunohistochemical score, may identify high-risk subgroups for decreased survival and to further guide therapeutic decisions. PMID- 29344993 TI - Editorial Comment to Cell death under epithelial-mesenchymal transition control in prostate cancer therapeutic response. PMID- 29344994 TI - Embryology of the craniocervical junction and posterior cranial fossa, part II: Embryogenesis of the hindbrain. AB - Although pathology of the hindbrain and its derivatives can have life altering effects on a patient, a comprehensive review on its embryology is difficult to find in the peer-reviewed medical literature. Therefore, this review article, using standard search engines, seemed timely. The embryology of the hindbrain is complex and relies on a unique timing of various neurovascular and bony elements. Derailment of these developmental processes can lead to a wide range of malformations such as the Chiari malformations. Therefore, a good working knowledge of this embryology as outlined in this review of the hindbrain is important for those treating patients with involvement of this region of the central nervous system. Clin. Anat. 31:488-500, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29344995 TI - Activation of human CD141+ and CD1c+ dendritic cells in vivo with combined TLR3 and TLR7/8 ligation. AB - Mice reconstituted with human hematopoietic stem cells are valuable models to study aspects of the human immune system in vivo. We describe a humanized mouse model (hu mice) in which fully functional human CD141+ and CD1c+ myeloid and CD123+ plasmacytoid dendritic cells (DC) develop from human cord blood CD34+ cells in immunodeficient mice. CD141+ DC are the human equivalents of murine CD8+ /CD103+ DC which are essential for the induction of tumor-inhibitory cytotoxic T lymphocyte responses, making them attractive targets to exploit for the development of new cancer immunotherapies. We used CD34+ -engrafted NSG-A2 mice to investigate activation of DC subsets by synthetic dsRNA or ssRNA analogs polyinosinic-polycytidylic acid/poly I:C and Resiquimod/R848, agonists for TLR3 and TLR8, respectively, both of which are expressed by CD141+ DC. Injection of hu mice with these agonists resulted in upregulation of costimulatory molecules CD80, CD83 and CD86 by CD141+ and CD1c+ DC alike, and their combination further enhanced expression of these molecules by both subsets. When combined, poly I:C and R848 enhanced serum levels of key cytokines associated with cross presentation and the induction of cytotoxic T lymphocyte responses including IFN alpha, IFN-beta, IL-12 and CXCL10. These data advocate a combination of poly I:C and R848 TLR agonists as means of activating human DC for immunotherapy. PMID- 29344996 TI - Bibliometric analysis of a century of research on oral erythroplakia and leukoplakia. AB - BACKGROUND: Oral squamous cell carcinoma is a major cause of cancer-associated morbidity and mortality and may develop from oral erythroplakia and leukoplakia (OEL), the most common oral potentially malignant lesions. Our objective was to provide a descriptive overview of the global research activity on OEL over the past decades. METHODS: We performed a systematic bibliometric analysis of articles and reviews on OEL up to December 31st 2016 using the SCOPUS database. Contribution of each country was analyzed by density-equalizing mapping (DEMP). The overall scientific productivity was analyzed for each journal and country. RESULTS: A total of 5098 published items (articles or reviews) were identified. They are expected to double by 2040, with an expected number of 400 items per year. Only 4% of all research on oral oncology is focused on OEL. Together with the increasing number of publications since 1980s, an increasing number of international collaborative studies were observed. Journal of Oral Pathology and Medicine and Oral Oncology are the leading journals in terms of number of published items. The US, India, and the UK were the most prolific countries in terms of publications overtime. CONCLUSIONS: We identified the leading journals as well as the leading authors and countries contributing to the research on OEL. International collaborative studies in the field are to be encouraged to refine strategies of oral cancer prevention. PMID- 29344997 TI - Integration of Open Metal Sites and Lewis Basic Sites for Construction of a Cu MOF with a Rare Chiral Oh -type cage for high performance in methane purification. AB - A Cu metal-organic framework (MOF), [Cu4 (PMTD)2 (H2 O)3 ]?20 H2 O, 1, (where PMTD is 1,4-phenylenebis(5-methyl-4H-1,2,4-triazole-3,4-diyl)bis(5-carboxylato 3,1-phenylene)bis(hydroperoxymethanide)), with a rare chiral Oh -type cage, and dual functionalities of open metal sites and Lewis basic sites, based on a designed U-shaped ligand, was synthesized by hydrothermal methods. It exhibits high CO2 , C2 , and C3 hydrocarbon storage capacity under atmospheric pressure, as well as high H2 (1.96 wt.%) adsorption capacity at 77 K. Methane purification capacity was tested and verified step by step. Isosteric heats (Qst ) studies reveal that CH4 has the weakest van der Waals host-guest interactions among the seven gases at 298 K. Ideal adsorbed solution theory (IAST) calculation reveals that compound 1 is more selective toward CO2 , C2 H6 , and C3 H8 over CH4 in further calculating its separation capacity, as exemplified for CO2 /CH4 (50:50, 5:95), C2 H6 /CH4 (50:50, 5:95), or C3 H8 /CH4 (50:50, 5:95) binary gas mixtures. Breakthrough experiments show that 1 has a significantly higher adsorption capacity for CO2 , C2 H6 , and C3 H8 than CH4 . The selective adsorption properties of 1 make it a promising candidate for methane purification. PMID- 29344998 TI - Role of AP-endonuclease (Ape1) active site residues in stabilization of the reactant enzyme-DNA complex. AB - Apurinic/apyrimidinic endonuclease 1 (Ape1) is an important metal-dependent enzyme in the base excision repair mechanism, responsible for the backbone cleavage of abasic DNA through a phosphate hydrolysis reaction. Molecular dynamics simulations of Ape1 complexed to its substrate DNA performed for models containing 1 or 2 Mg2+ -ions as cofactor located at different positions show a complex with 1 metal ion bound on the leaving group site of the scissile phosphate to be the most likely reaction-competent conformation. Active-site residue His309 is found to be protonated based on pKa calculations and the higher conformational stability of the Ape1-DNA substrate complex compared to scenarios with neutral His309. Simulations of the D210N mutant further support the prevalence of protonated His309 and strongly suggest Asp210 as the general base for proton acceptance by a nucleophilic water molecule. PMID- 29344999 TI - The newer classifications of the chiari malformations with clarifications: An anatomical review. AB - In 1891, Hans Chiari described a group of congenital hindbrain anomalies, which were eventually named after him. He classified these malformations into three types (Chiari malformations I, II, and III), and four years later added the Chiari IV malformation. However, numerous reports across the literature do not seem to fit Chiari's original descriptions of these malformations, so researchers have been encouraged to propose new classifications to encompass these variants (e.g., Chiari 0, Chiari1.5, and Chiari 3.5 malformations). Moreover, there is a continued misunderstanding and misuse of the term "Chiari IV malformation." Therefore, the current review intended to describe anatomical, pathophysiological, and clinical aspects of the newer classifications with clarifications of the Chiari malformations. We reviewed available literature about Chiari malformations and their variants using "PubMed" and "Google Scholar." We also looked into the term Chiari IV, clarifying its original description and citing examples where the term has been used erroneously. References in the reviewed articles were searched manually. Variants of the originally described Chiari malformations are termed Chiari 0, Chiari 1.5, and Chiari 3.5. Each has distinct anatomical characteristics and some of these are extremely rare and incompatible with life (e.g. Chiari 3.5). Chiari IV malformation has been further clarified. Some physicians might be unfamiliar with the newer classifications of Chiari malformations because these conditions are rare or even unique. Furthermore, care is needed in using the term "Chiari IV malformation", which must be consistent with Chiari's original description, i.e. an occipital encephalocele containing supratentorial contents. Clin. Anat. 31:314 322, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29345000 TI - Cell death under epithelial-mesenchymal transition control in prostate cancer therapeutic response. AB - Prostate cancer is a widespread problem among men, with >160 000 new cases in 2017 alone. Androgen deprivation therapy is commonly used in prostate cancer treatment to block androgens required for cancer growth, but disease relapse after androgen deprivation therapy is both common and severe. Changes in androgen receptor signaling from androgen deprivation therapy have been linked to therapeutic resistance and tumor progression. Resistant cells can become reprogrammed to undergo epithelial-mesenchymal transition, a phenotypic switch from benign, epithelial cells to a mobile cell with mesenchymal traits. In these cells, attachment to their epithelial cell layer is no longer required for survival. Anoikis is a form of cell death that occurs when detachment from other cells and the basement membrane occurs. Epithelial cells have been shown to undergo epithelial-mesenchymal transition, avoid anoikis induction and progress to a metastatic phenotype. In prostate cancer progression to advanced disease, epithelial-mesenchymal transition induction (characterized by loss of epithelial cellular attachment protein E-cadherin) correlates with a higher Gleason score, tumor progression, increased metastasis and higher biochemical recurrence. The concept of interfacing epithelial-mesenchymal transition with anoikis in the tumor microenvironment landscape will be discussed here, with focus on the significance of the functional exchange between the two processes in therapeutic targeting of advanced disease. The current evidence on the impact of loss of cell cell contact, acquisition of chemoresistance, immune escape and metastatic spread in advanced tumors in response to transforming growth factor-beta on prostate cancer metastasis will be also discussed. The signaling cross-talk between transforming growth factor-beta and androgen receptor signaling will be interrogated as a new therapeutic platform for the development of combination strategies to impair prostate cancer metastasis. PMID- 29345001 TI - Wheat oral immunotherapy was moderately successful but was associated with very frequent adverse events in children aged 6-18 years. AB - AIM: This study investigated oral immunotherapy (OIT) for children aged 6-18 years with wheat allergies. METHODS: Well-cooked wheat spaghetti was given to 100 children with wheat allergies every day for 17 weeks, increasing from 0.3 to 2000 mg of wheat protein, followed by three- and nine-month maintenance phases. Blood samples were taken before therapy and at follow-up visits. The study was carried out in 2009-2015 in four Finnish paediatric allergology units. RESULTS: The children (67% male) had a mean age of 11.6 years (range 6.1-18.6), and 57 were using wheat daily 16 months after the initiation of therapy. Allergic symptoms occurred in 94/100 children: mild in 34, moderate in 36 and severe in 24. Specific immunoglobulin E (IgE) for omega-5-gliadin was significantly higher in patients who did not reach the target dose and were related to the intensity of reactions. CONCLUSION: The majority (57%) of children with wheat allergies could use wheat in their daily diet 16 months after the initiation of OIT, but 94/100 had adverse reactions and 60 were moderate or severe. Specific IgE to omega-5 gliadin may provide a biomarker for how much wheat can be tolerated and the intensity of the reactions to immunotherapy. PMID- 29345002 TI - Remote C-H Activation of Various N-Heterocycles Using a Single Template. AB - A single and simple ortho-sulfonyl benzonitrile template was developed to achieve remote C-H olefination of six different classes of N-heterocycles. We demonstrate that, by varying precatalysts and conditions, the same template can be applied to the remote C-H activation of six structurally distinct heterocyclic scaffolds, and the site-selectivity can be predicted based on distance and geometry. Furthermore, this new development shows that template-directed remote C-H activation is possible through macrocyclopalladation processes with smaller ring sizes. PMID- 29345003 TI - Investigation of attributes which guide choice in cataract surgery services in urban Sydney, Australia. AB - BACKGROUND: It is critical to consult patients to develop patient-centred cataract surgery care. We aimed to identify attributes patients consider when making decisions about cataract surgery in an Australian context, where both publicly and privately funded surgery are available. This is the first step in investigating how decisions are made about cataract surgery services. METHODS: This observational qualitative study was undertaken in two public hospitals and one private practice in Sydney, Australia. The study involved 19 women and men with age-related cataracts and no previous cataract surgery, aged > 18 years, able to speak conversational English or Mandarin. A multi-stage attribute development process was followed, including: literature review, semi-structured interviews with surgery candidates in three eye clinics, and review by an expert panel. The main outcome measures were primary attributes for making choices about cataract surgery. RESULTS: Wait time, cost, institutional reputation, surgeon experience and travel time were identified as principal attributes; lower value was placed on consultation length and accessibility. Non-English speaking participants indicated greater interest in pre-operative information than English speakers, but expressed trust in the Australian healthcare system. CONCLUSIONS: Findings suggest individuals prioritise attributes which consume time or incur costs when accessing care (wait time, cost and travel time). They also consider factors associated with the outcome of their cataract surgery (surgeon experience and institutional reputation). Similar to other decision-making processes, patients are likely to trade between these different attributes depending on their personal preferences and circumstances. PMID- 29345004 TI - Epidermal permeability barrier function and sphingolipid content in the skin of sphingomyelin synthase 2 deficient mice. AB - Sphingomyelin synthase (SMS) is an enzyme that generates sphingomyelin (SM) from ceramide (CER) and phosphatidylcholine. SM in the epidermis is a precursor of CER, an important lipid for epidermal permeability barrier function. However, the physiological role of SMS in skin is unclear. To uncover the function of SMS in skin, we investigated sphingolipid metabolism enzyme activity in skin, SM content in the epidermis, CER content in the stratum corneum (SC) and transepidermal water loss (TEWL) as an indicator of barrier function in SMS2-knockout (KO) mice. The activities of sphingolipid metabolism enzymes in skin homogenates were measured using a fluorescently labelled substrate. Enzymatic reaction products were detected by high-performance liquid chromatography (HPLC). Lipids in the epidermis or SC were extracted and quantified by high-performance thin layer chromatography (HPTLC). TEWL was measured using a Tewameter TM300. In SMS2-KO mice, SMS activity in skin homogenates, epidermal SM content and SC CER content were significantly decreased relative to wild-type (WT) mice. The TEWL of SMS2-KO mice was significantly increased compared to WT mice. Our data indicate that SMS2 generates SM in the epidermis and contributes to epidermal permeability barrier function and will support understanding of SM-related metabolic disorders. PMID- 29345005 TI - "There's no acknowledgement of what this does to people": A qualitative exploration of mental health among parents of children with critical congenital heart defects. AB - AIMS AND OBJECTIVES: The purpose of this study was to explore the psychological impact of parenting a child with a critical congenital heart defect and the feasibility and acceptability of integrating psychological services into paediatric cardiology care. BACKGROUND: Children with critical congenital heart defect are at an increased risk for long-term behavioural, social and emotional difficulties. Data suggest that this risk is partially attributable to parental mental health, which is a stronger predictor of long-term behavioural problems in congenital heart defect children than disease-specific and surgical factors. Parental stress and mental health are thus important intervention targets, especially among high-risk families. DESIGN: This article presents data from a qualitative study with 25 congenital heart defect parents (n = 15) and providers (n = 10). METHODS: Using thematic analysis, semi-structured in-depth interviews were transcribed and coded by the first and second author to identify major themes and subthemes. RESULTS: Results of the interviews were organised into four major themes: (i) the psychological impact of parenting a child with critical congenital heart defect, (ii) factors that influence the psychological impact of parenting a child with critical congenital heart defect, (iii) how and when to psychologically support congenital heart defect parents and (iv) feasibility and acceptability of integrating psychological support into congenital heart defect care. Providers and parents endorsed the integration of mental health treatment into routine congenital heart defect care and identified several practical issues related to feasibility (e.g., funding and space) that should be considered prior to implementation. CONCLUSIONS: Parents of children with critical congenital heart defect need access to mental health services, and integrating these services into routine paediatric cardiology care is a novel and practical way for parents to receive the treatment they need. RELEVANCE TO CLINICAL PRACTICE: Suggestions for how the field of paediatric cardiology could begin to integrate mental health services into congenital heart defect treatment are provided. PMID- 29345006 TI - Embryology of the craniocervical junction and posterior cranial fossa, part I: Development of the upper vertebrae and skull. AB - Although the embryology of the posterior cranial fossa can have life altering effects on a patient, a comprehensive review on this topic is difficult to find in the peer-reviewed medical literature. Therefore, this review article, using standard search engines, seemed timely. The embryology of the posterior cranial fossa is complex and relies on a unique timing of various neurovascular and bony elements. Derailment of these developmental processes can lead to a wide range of malformations such as the Chiari malformations. Therefore, a good working knowledge of this embryology as outlined in this review of its bony architecture is important for those treating patients with involvement of this region of the cranium. Clin. Anat. 31:466-487, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29345007 TI - Aetiology of neonatal conjunctivitis evaluated in a population-based setting. AB - AIM: Our aim was to study prospectively the aetiology of neonatal conjunctivitis in a population-based setting. METHODS: Altogether 173 neonates with clinical conjunctivitis aged on average 20 (SD 10) days were recruited from child welfare clinics in Oulu, Finland, in 2010-2015. Conjunctival specimens were collected from 167 neonates for multiplex polymerase chain reaction to detect 16 respiratory viruses, from 163 for polymerase chain reaction to detect Chlamydia trachomatis and Neisseria gonorrhoeae and from 160 for bacterial culture studies. The cases were followed up until the age of 18 months. RESULTS: Viral conjunctivitis was diagnosed in 8/167 (4.8%; 95% CI 2.1-9.2%), chlamydial or gonococcal conjunctivitis in 0/163 cases (0%; 95% CI 0-2.2%) and other bacterial conjunctivitis in 58/160 (36%; 95% CI 29-44%). Rhinovirus was found at the ocular site in 4/167 (2.4%) neonates, adenovirus in 3/167 (1.8%) and bocavirus in 1/167 (0.6%). The most commonly isolated bacteria included Staphylococcus aureus (16%), Moraxella catarrhalis (9.4%) and Streptococcus pneumoniae (3.1%). None of these pathogens was associated with the 4/173 (2.3%) cases later operated on for persistent nasolacrimal duct obstruction. CONCLUSION: Chlamydia trachomatis was a rare pathogen in neonatal conjunctivitis in a population-based setting, but respiratory viruses were detected more frequently than indicated earlier. PMID- 29345008 TI - Current knowledge of risk factors for testicular germ cell tumors. AB - The development of the human gonads is tightly regulated by the correct sequential expression of many genes and hormonal activity. Disturbance of this regulation does not only prevent proper development of the gonads, but it also contributes to the development of testicular germ cell tumors. Recent genetic studies, especially genome-wide association studies, have made great progress in understanding genetic susceptibility. Although there is strong evidence of inherited risks, many environmental factors also contribute to the development of testicular germ cell tumors. Histopathological studies have shown that most testicular germ cell tumors arise from germ cell neoplasia in situ, which is thought to be arrested and transformed primordial germ cells. Seminoma has features identical to germ cell neoplasia in situ or primordial germ cells, whereas non-seminoma shows varied differentiation. Seminomas and embryonic cell carcinomas have the feature of pluripotency, which is thought to be the cause of histological heterogeneity and mixed pathology in testicular germ cell tumors. Testicular germ cell tumors show high sensitivity to chemotherapies, but 20-30% of patients show resistance to standard chemotherapy. In the present review, the current knowledge of the epidemiological and genomic factors for the development of testicular germ cell tumors is reviewed, and the mechanisms of resistance to chemotherapies are briefly mentioned. PMID- 29345009 TI - Choosing non-redundant representative subsets of protein sequence data sets using submodular optimization. AB - Selecting a non-redundant representative subset of sequences is a common step in many bioinformatics workflows, such as the creation of non-redundant training sets for sequence and structural models or selection of "operational taxonomic units" from metagenomics data. Previous methods for this task, such as CD-HIT, PISCES, and UCLUST, apply a heuristic threshold-based algorithm that has no theoretical guarantees. We propose a new approach based on submodular optimization. Submodular optimization, a discrete analogue to continuous convex optimization, has been used with great success for other representative set selection problems. We demonstrate that the submodular optimization approach results in representative protein sequence subsets with greater structural diversity than sets chosen by existing methods, using as a gold standard the SCOPe library of protein domain structures. In this setting, submodular optimization consistently yields protein sequence subsets that include more SCOPe domain families than sets of the same size selected by competing approaches. We also show how the optimization framework allows us to design a mixture objective function that performs well for both large and small representative sets. The framework we describe is the best possible in polynomial time (under some assumptions), and it is flexible and intuitive because it applies a suite of generic methods to optimize one of a variety of objective functions. PMID- 29345010 TI - Genetic variation in the shape of cold-survival curves in a single fly population suggests potential for selection from climate variability. AB - Temperature variation is one of the primary challenges facing ectotherms, and the ability to tolerate a range of thermal environments is critical for setting current and future species distributions. Low temperature is particularly challenging for ectotherms because winter conditions have strong latitudinal and temporal variation. Lower lethal temperature (LLT) is a common metric of cold tolerance used in studies of local adaptation and plasticity. Comparisons of LLT across groups typically assume parallel S-shaped survival curves, but genetic variation in the shape of survival vs. temperature curves has not been assessed. Here, we measured the ability of 36 lines of the Drosophila Genetic Reference Panel (DGRP) to survive a 1-h cold shock at seven ecologically relevant low temperatures (-1 to -7 degrees C) to create a high-resolution response curve for each genotype. We observed surprising variation both in the magnitude of survival and in the shapes of the response curves, with the curves clustering into four distinct shapes. To encompass variation in the shapes of these survival curves, we developed a new cold tolerance metric, cumulative cold tolerance (CCT). By comparing our survival data with climatological data, we propose that variation in the shapes of cold-survival curves arose from weak selection pressure to survive intermediate subzero temperatures in this mid-latitude population of flies. Using publicly available genome sequence and transcript expression data for these lines, we identified several candidate genes associated with CCT, and using transgenic RNAi, we confirmed a functional role for many of these genes. PMID- 29345011 TI - Effectiveness of a patient education plan on knowledge of post-op venous thromboembolism survival skills. AB - AIMS AND OBJECTIVES: To investigate the effectiveness of a multimethod venous thromboembolism prevention patient education plan on participants' knowledge retention. BACKGROUND: A potential complication of surgery requiring general anaesthesia, worldwide, is the development of life-threatening venous thromboembolism. Patients need education on preventing, recognising and immediately responding to a suspected thromboembolism. Written instructional materials given to patients at discharge may be inadequate. DESIGN: A randomised controlled trial. METHODS: Setting was multiple general surgery units at a large Midwestern United States academic medical centre. Sample included patients recovering from surgery with general anaesthesia: (N = 66), 68% female, 34 = experimental, 32 = usual care. Prior to discharge, participants in the experimental group were given a multimethod venous thromboembolism prevention education plan including a video, pamphlet and verbal instruction; control group received usual instructional pamphlet. Both groups received a knowledge test immediately before instruction. Two weeks following discharge, a phone call was made to participants to complete the postinstruction test. The relevant EQUATOR guideline, CONSORT checklist, was used for reporting this study. CONCLUSIONS: There were no statistically significant differences in age, gender, race, length of stay, surgery and history of venous thromboembolism among participants and group or test score results. No statistically significant difference in postinstruction score was found between groups. However, there was a trend in greater perception of importance in all groups and higher knowledge scores in the experimental group, with the percentage of participants in the experimental group answering all questions correctly rising from 38.2% correct to 73.5% correct. RELEVANCE TO CLINICAL PRACTICE: Teaching patients the importance of knowing venous thromboembolism signs and preventive/survival skills is potentially life saving and nurses must know the importance of using the most effective methods for the learning needs of their patients. Further research including different education methods and testing is suggested. PMID- 29345012 TI - In Reply to Letter to the Editor from Bhartiya: Transplantation of Whole Bone Marrow Indicates That Bone Marrow Very Small Embryonic-Like Cells Do Not Contribute to Endometrial Lineages. PMID- 29345013 TI - Reliability and criterion-related validity testing (construct) of the Endotracheal Suction Assessment Tool (ESAT(c)). AB - AIMS AND OBJECTIVES: To establish criterion-related construct validity and test retest reliability for the Endotracheal Suction Assessment Tool(c) (ESAT(c)). BACKGROUND: Endotracheal tube suction performed in children can significantly affect clinical stability. Previously identified clinical indicators for endotracheal tube suction were used as criteria when designing the ESAT(c). Content validity was reported previously. The final stages of psychometric testing are presented. DESIGN: Observational testing was used to measure construct validity and determine whether the ESAT(c) could guide "inexperienced" paediatric intensive care nurses' decision-making regarding endotracheal tube suction. Test-retest reliability of the ESAT(c) was performed at two time points. METHODS: The researchers and paediatric intensive care nurse "experts" developed 10 hypothetical clinical scenarios with predetermined endotracheal tube suction outcomes. "Experienced" (n = 12) and "inexperienced" (n = 14) paediatric intensive care nurses were presented with the scenarios and the ESAT(c) guiding decision-making about whether to perform endotracheal tube suction for each scenario. Outcomes were compared with those predetermined by the "experts" (n = 9). Test-retest reliability of the ESAT(c) was measured at two consecutive time points (4 weeks apart) with "experienced" and "inexperienced" paediatric intensive care nurses using the same scenarios and tool to guide decision-making. RESULTS: No differences were observed between endotracheal tube suction decisions made by "experts" (n = 9), "inexperienced" (n = 14) and "experienced" (n = 12) nurses confirming the tool's construct validity. No differences were observed between groups for endotracheal tube suction decisions at T1 and T2. CONCLUSION: Criterion-related construct validity and test-retest reliability of the ESAT(c) were demonstrated. Further testing is recommended to confirm reliability in the clinical setting with the "inexperienced" nurse to guide decision-making related to endotracheal tube suction. RELEVANCE TO CLINICAL PRACTICE: The ESAT(c) is the first validated tool to systematically guide endotracheal nursing practice for the "inexperienced" nurse. PMID- 29345014 TI - Concise Review: Human Induced Pluripotent Stem Cell Models of Retinitis Pigmentosa. AB - Hereditary retinal dystrophies, specifically retinitis pigmentosa (RP) are clinically and genetically heterogeneous diseases affecting primarily retinal cells and retinal pigment epithelial cells with blindness as a final outcome. Understanding the pathogenicity behind these diseases has been largely precluded by the unavailability of affected tissue from patients, large genetic heterogeneity and animal models that do not faithfully represent some human diseases. A landmark discovery of human induced pluripotent stem cells (hiPSCs) permitted the derivation of patient-specific cells. These cells have unlimited self-renewing capacity and the ability to differentiate into RP-affected cell types, allowing the studies of disease mechanism, drug discovery, and cell replacement therapies, both as individual cell types and organoid cultures. Together with precise genome editing, the patient specific hiPSC technology offers novel strategies for targeting the pathogenic mutations and design therapies toward retinal dystrophies. This study summarizes current hiPSC-based RP models and highlights key achievements and challenges of these cellular models, as well as questions that still remain unanswered. Stem Cells 2018;36:474 481. PMID- 29345015 TI - Dynamic sex chromosomes in Old World chameleons (Squamata: Chamaeleonidae). AB - Much of our current state of knowledge concerning sex chromosome evolution is based on a handful of 'exceptional' taxa with heteromorphic sex chromosomes. However, classifying the sex chromosome systems of additional species lacking easily identifiable, heteromorphic sex chromosomes is indispensable if we wish to fully understand the genesis, degeneration and turnover of vertebrate sex chromosomes. Squamate reptiles (lizards and snakes) are a potential model clade for studying sex chromosome evolution as they exhibit a suite of sex-determining modes yet most species lack heteromorphic sex chromosomes. Only three (of 203) chameleon species have identified sex chromosome systems (all with female heterogamety, ZZ/ZW). This study uses a recently developed method to identify sex specific genetic markers from restriction site-associated DNA sequence (RADseq) data, which enables the identification of sex chromosome systems in species lacking heteromorphic sex chromosomes. We used RADseq and subsequent PCR validation to identify an XX/XY sex chromosome system in the veiled chameleon (Chamaeleo calyptratus), revealing a novel transition in sex chromosome systems within the Chamaeleonidae. The sex-specific genetic markers identified here will be essential in research focused on sex-specific, comparative, functional and developmental evolutionary questions, further promoting C. calyptratus' utility as an emerging model organism. PMID- 29345016 TI - Evaluation of the implementation of a 24-hr stroke thrombolysis emergency treatment for patients with acute ischaemic stroke. AB - AIMS AND OBJECTIVES: To assess the trends of intravenous (IV) thrombolysis with recombinant tissue plasminogen activator (rt-PA) among patients with acute ischaemic stroke (AIS) admitted to our hospital between 2012-2014 and investigate the effects of a 24-hr stroke thrombolysis emergency treatment on the intrahospital clinical data and outcomes of these patients treated with IV rt-PA thrombolysis. BACKGROUND: Although prenotification of stroke by emergency medical services has been endorsed by the national recommendations and implemented in some developed countries, the development in China is limited. DESIGN: A retrospective, single-centre, observational study. METHODS: Patients with AIS admitted to our hospital between January 2012-December 2014 were included; those who received IV rt-PA thrombolysis within 4.5 hr of onset were investigated. Demographic characteristics, including age and sex, and clinical data and outcomes, including onset-to-treatment time (OTT), door-to-needle time (DNT), premorbid modified Rankin Scale score and proportion of patients treated per year, were all recorded. RESULTS: The proportion of patients with AIS who received thrombolytic therapy within 4.5 hr increased from 2012-2014. The baseline characteristics of all patients were similar. Since the implementation of 24-hr stroke thrombolysis emergency treatment in 2013, the median DNT significantly decreased in 2014 after implementation (42 min) compared with that in 2012 before implementation (81 min) (p < .05). Moreover, the admission-to imaging time (37 vs. 33 vs. 36 min) and OTT (176 vs. 147 vs. 124 min) significantly decreased during the 3 years (p < .05). CONCLUSIONS: The 24-hr stroke thrombolysis emergency treatment reduced in-hospital delay before thrombolytic therapy but had no effect on the functional outcomes of the patients with AIS. RELEVANCE TO CLINICAL PRACTICE: This study provides opportunities to improve the experiences in using 24-h stroke thrombolysis emergency treatment in patients with AIS in clinical practice. PMID- 29345017 TI - Effects of nutritional support on short-term clinical outcomes and immune response in unresectable locally advanced oesophageal squamous cell carcinoma. AB - This retrospective study investigated the efficiency of nutritional support in unresectable locally advanced oesophageal squamous cell carcinoma (LAOSCC) patients who received concurrent chemoradiotherapy (CCRT) based on 5-fluorouracil and cisplatin. In the routine care group, 63 patients served as historical controls and received nutrition support in a reactive manner. In addition, 57 patients in the nutritional support group received timely diet counselling, oral nutritional supplements, enteral nutrition and/or parenteral nutrition during CCRT. This support was based on scores from nutritional risk screening 2002 (NRS 2002) after June 2014. The nutritional support group had significant advantages over the routine care group with respect to the incidence of neutropenia, the objective response rate, the change in serum albumin and the lengths of hospital stay. In addition, the nutritional support group had significantly higher levels of IgG and IL-2, higher proportions of NK, CD3+ and CD4+ cells as well as a higher ratio of CD4+ /CD8+ cells than the routine care group (p < .05). In contrast, the nutritional support group had a significantly lower level of IL-6. In conclusion, the current nutritional care programme could bring benefits of improving treatment compliance, reducing toxicity and lengths of hospital stay and enhancing the immune response. PMID- 29345018 TI - An Orphan Protist Quadricilia rotundata Finally Finds Its Phylogenetic Home in Cercozoa. AB - Quadricilia rotundata is a heterotrophic flagellate with four flagella. However, because this species has no clear morphological characteristics or molecular data affiliating it with any known group, Q. rotundata has been treated as a protist incertae sedis, for a long time. Here, we established a clonal culture of Q. rotundata and sequenced its 18S rDNA sequence. Molecular phylogenetic analysis successfully placed Q. rotundata in an environmental clade within Cercozoa, which contributes to expand the morphological and species diversity within Cercozoa. We also discuss morphological evolution within Cercozoa based on this finding. PMID- 29345019 TI - A vascular mechanism to explain thermally mediated variations in deep-body cooling rates during the immersion of profoundly hyperthermic individuals. AB - NEW FINDINGS: What is the central question of this study? Does the cold-water immersion (14 degrees C) of profoundly hyperthermic individuals induce reductions in cutaneous and limb blood flow of sufficient magnitude to impair heat loss relative to the size of the thermal gradient? What is the main finding and its importance? The temperate-water cooling (26 degrees C) of profoundly hyperthermic individuals was found to be rapid and reproducible. A vascular mechanism accounted for that outcome, with temperature-dependent differences in cutaneous and limb blood flows observed during cooling. Decisions relating to cooling strategies must be based upon deep-body temperature measurements that have response dynamics consistent with the urgency for cooling. ABSTRACT: Physiologically trivial time differences for cooling the intrathoracic viscera of hyperthermic individuals have been reported between cold- and temperate-water immersion treatments. One explanation for that observation is reduced convective heat delivery to the skin during cold immersion, and this study was designed to test both the validity of that observation, and its underlying hypothesis. Eight healthy men participated in four head-out water immersions: two when normothermic, and two after exercise-induced, moderate-to-profound hyperthermia. Two water temperatures were used within each thermal state: temperate (26 degrees C) and cold (14 degrees C). Tissue temperatures were measured at three deep-body sites (oesophagus, auditory canal and rectum) and eight skin surfaces, with cutaneous vascular responses simultaneously evaluated from both forearms (laser Doppler flowmetry and venous-occlusion plethysmography). During the cold immersion of normothermic individuals, oesophageal temperature decreased relative to baseline (-0.31 degrees C over 20 min; P < 0.05), whilst rectal temperature increased (0.20 degrees C; P < 0.05). When rendered hyperthermic, oesophageal ( 0.75 degrees C) and rectal temperatures decreased (-0.05 degrees C) during the transition period (<8.5 min, mostly in air at 22 degrees C), with the former dropping to 37.5 degrees C only 54 s faster when immersed in cold rather than in temperate water (P < 0.05). Minimal cutaneous vasoconstriction occurred during either normothermic immersion, whereas pronounced constriction was evident during both immersions when subjects were hyperthermic, with the colder water eliciting a greater vascular response (P < 0.05). It was concluded that the rapid intrathoracic cooling of asymptomatic, hyperthermic individuals in temperate water was a reproducible phenomenon, with slower than expected cooling in cold water brought about by stronger cutaneous vasoconstriction that reduced convective heat delivery to the periphery. PMID- 29345020 TI - A new approach in exploring satisfaction with nursing care by nurses themselves. AB - AIMS AND OBJECTIVES: To examine the level of satisfaction with nursing care from nurses' perspectives, as patients and/or as caregivers for hospitalised relatives. BACKGROUND: Many studies that have examined patients' satisfaction with nursing care in Jordan and worldwide found high ratings of satisfaction with nursing care among patients. These ratings may be inflated because patients, as the recipients of care, are often unequipped to judge specific aspects of care, unless the patient is also a nurse. METHODS: A descriptive cross-sectional design was used. Data were collected using the Patients Satisfaction with Nursing Care Quality Questionnaire. The total sample size was 231 registered nurses from eight hospitals in Jordan. All participating nurses had either experienced hospitalisation for a minimum of 24 hr for themselves or as caregivers for one of their close relatives, currently or within the last year. RESULTS: The average age of participants was 31.7 (SD = 0.40) years. Most of the participants were female with <10 years of work experience. The average score for the level of satisfaction was 2.96 of 5, which reflects a moderate level of satisfaction with nursing care. None of the 19 items of the satisfaction scale exceeded the moderate level. The highest mean score of satisfaction level was 3.20 (SD = 1.17) for the skills and competence of nurses, while the lowest mean score was 2.68 (1.22) for the coordination of care after discharge. CONCLUSION: Nurses as patients and/or caregivers evaluated the nursing care during their hospitalisation differently in comparison with public patients. The findings indicated that nurses perceived only moderate levels of satisfaction when undergoing experiences of hospitalisation. RELEVANCE TO CLINICAL PRACTICE: The findings from this study may help nurses to become more alert for meeting the patients' needs as desired under the best practice. PMID- 29345021 TI - Effects of loneliness on illness perception in persons with a chronic disease. AB - AIM AND OBJECTIVES: To determine the effects of loneliness on illness perception in persons with a chronic disease. BACKGROUND: How an illness is perceived not only affects all dimensions of a person's life but also plays an important role in his/her coping with the complications and consequences of the disease. One of the factors that influence the illness perception is loneliness. DESIGN: The study is a descriptive study. METHODS: The study sample included 206 individuals over the 18 years of age, conscious, having had a chronic illness at least 1 year, having no communication problems and agreeing to participate in the study after being informed about the study. Data were collected with the Personal Information Form, the Illness Perception Questionnaire and the University of California Los Angeles Loneliness Scale. The forms were administered to the participants in an unoccupied patient room, and the data were collected through face-to-face interviews. RESULTS: The results of the study revealed that individuals with a chronic disease perceived emotional symptoms accompanying the disease more intensely that they accepted their disease was a chronic one and that their personal control and treatment control of the disease were at a middle level. The mean score the participants obtained from the University of California Los Angeles Loneliness Scale was 38.49 +/- 11.15. There was a significant negative correlation between this mean score and the mean scores obtained from the following subscales consequences, treatment control, illness perception and emotional representations. CONCLUSION: In this study, it was concluded that the participants perceived their loneliness level as moderate and that their illness perception was negatively affected as their loneliness levels increased. RELEVANCE TO CLINICAL PRACTICE: The knowledge of clinical nurses about perception of patients with chronic illnesses and conditions affecting that perception will enhance compliance with the illness management or treatment strategies. Clinical nurses should observe residents closely for signs of depression and loneliness and support their sense of coherence to reduce emotional and social loneliness. PMID- 29345023 TI - The narrow treatment road to survival: Everyday life perspectives of women with breast cancer from Iraq and the former Yugoslavia undergoing radiation therapy in Sweden. AB - This study aimed at exploring how women from Iraq and the former Yugoslavia, diagnosed with breast cancer and living in Sweden, experience their everyday life during radiation therapy. A qualitative research design was used comprising interviews with ten women, five originating from Iraq and five from the former Yugoslavia. Striving to survive, the women experienced their everyday life during radiation therapy as extremely challenging. This experience can be placed into three categories: strategies for survival, keeping up appearances and staying in control. Because of these specific challenges, immigrant women may need additional information and guidance in conjunction with the diagnosis, which may enable them to identify possible sources of support from those closest to them. Also, greater attention should focus on acknowledging the woman behind the diagnosis, regardless of her origin, to develop an individualised support programme to help her cope with everyday life during radiation therapy. PMID- 29345022 TI - Seroprevalence of Helicobacter pylori in Korea: A multicenter, nationwide study conducted in 2015 and 2016. AB - BACKGROUND: The Korean College of Helicobacter and Upper Gastrointestinal Research has studied Helicobacter pylori (H. pylori) prevalence since 1998 and found a dynamic change in its prevalence in Korea. The aim of this study was to determine the recent H. pylori prevalence rate and compare it with that of previous studies according to socioeconomic variables. METHODS: We planned to enroll 4920 asymptomatic Korean adults from 21 centers according to the population distribution of seven geographic areas (Seoul, Gyeonggi, Gangwon, Chungcheong, Kyungsang, Cholla, and Jeju). We centrally collected serum and tested H. pylori serum IgG using a chemiluminescent enzyme immunoassay. RESULTS: We analyzed 4917 samples (4917/4920 = 99.9%) from January 2015 to December 2016. After excluding equivocal serologic results, the H. pylori seropositivity rate was 51.0% (2414/4734). We verified a decrease in H. pylori seroprevalence compared with previous studies performed in 1998, 2005, and 2011 (P < .0001). The H. pylori seroprevalence rate differed by area: Cholla (59.5%), Chungcheong (59.2%), Kyungsang (55.1%), Jeju (54.4%), Gangwon (49.1%), Seoul (47.4%), and Gyeonggi (44.6%). The rate was higher in those older than 40 years (38.1% in those aged 30-39 years and 57.7% in those aged 40-49 years) and was lower in city residents than in noncity residents at all ages. CONCLUSIONS: Helicobacter pylori seroprevalence in Korea is decreasing and may vary according to population characteristics. This trend should be considered to inform H. pylori-related policies. PMID- 29345024 TI - Being Pluripotent, Bone Marrow Very Small Embryonic-Like Stem Cells Rather Than Hematopoietic Stem Cells Have the Potential to Regenerate Other Adult Organs. PMID- 29345025 TI - The Royal Commission into child sexual abuse: A beginning, not an end. PMID- 29345026 TI - Male-male aggression is unlikely to stabilize a poison frog polymorphism. AB - Phenotypic polymorphism is common in animals, and the maintenance of multiple phenotypes in a population requires forces that act against homogenizing drift and selection. Male-male competition can contribute to the stability of a polymorphism when males compete primarily with males of the same phenotype. In and around a contact zone between red and blue lineages of the poison frog Oophaga pumilio, we used simulated territorial intrusions to test the nonexclusive predictions that males would direct more aggression towards males of (i) their own phenotype and/or (ii) the phenotype that is most common in their population. Males in the monomorphic red and blue populations that flank the contact zone were more aggressive towards simulated intruders that matched the local coloration. However, males in the two polymorphic populations biased aggression towards neither their own colour nor the colour most common in their population. In sympatry, the rarer colour morph gains no advantage via reduced male-male aggression from territorial males in these O. pumilio populations, and so male aggression seems unlikely to stabilize colour polymorphism on its own. More broadly, these results suggest that the potential for divergent male aggression biases to maintain phenotypic diversity depends on the mechanism(s) that generate the biases and the degree to which these mechanisms persist in sympatry. PMID- 29345027 TI - Does flavoured dentifrice increase fluoride intake compared with regular toothpaste in children? A systematic review and meta-analysis. AB - BACKGROUND: Toothpaste manufacturers encourage through aggressive marketing strategies the overconsumption of fluoridated dentifrices. There are conflicting results regarding fluoride intake from toothpastes in children. AIM: The aim of this systematic review and meta-analysis was to determine whether dentifrice flavour increases fluoride ingestion by children. DESIGN: We included clinical trials on children that evaluated the use of flavoured dentifrice - FD vs regular dentifrice - RD to identify the fluoride intake. An electronic search was performed in PubMed, Web of Science, Scopus, The Cochrane Library, LILACS/BBO, and grey literature followed by manual search. The methodological quality of the studies was assessed using the Cochrane Collaboration common scheme for bias and ROBINS-I tool. Data were analysed in subgroups such as low (G1) and ordinary (G2) fluoride concentrations of dentifrices. We carried out heterogeneity and sensitive analyses. RESULTS: For G1, the fluoride intake from RD was significantly higher than from FD [standardised mean difference = -2.57 (-3.26, 1.89), P < 0.00001]. For G2, the fluoride ingestion from RD was significantly higher than from FD [mean difference = -0.00 (-0.00, -0.00), P = 0.02]. CONCLUSIONS: There is evidence to support the null hypothesis that flavouring from dentifrice does not increase fluoride intake in young children. PMID- 29345028 TI - Should we reserve big gun antimanic drugs for only big gun manias? PMID- 29345029 TI - High prevalence and functional effects of serum antineuronal antibodies in patients with gastrointestinal disorders. AB - BACKGROUND: Antineuronal antibodies can be associated with both gastrointestinal (GI) and brain disorders. For example, antibodies against the potassium channel subunit dipeptidyl-peptidase-like protein-6 (DPPX) bind to neurons in the central nervous system (CNS) and myenteric plexus and cause encephalitis, commonly preceded by severe unspecific GI symptoms. We therefore investigated the prevalence of antineuronal antibodies indicative of treatable autoimmune CNS etiologies in GI patients. METHODS: Serum samples of 107 patients (Crohn's disease n = 42, ulcerative colitis n = 16, irritable bowel syndrome n = 13, others n = 36) and 44 healthy controls were screened for anti-DPPX and further antineuronal antibodies using immunofluorescence on rat brain and intestine and cell-based assays. Functional effects of high-titer reactive sera were assessed in organ bath and Ussing chamber experiments and compared to non-reactive patient sera. KEY RESULTS: Twenty-one of 107 patients (19.6%) had antibodies against the enteric nervous system, and 22 (20.6%) had anti-CNS antibodies, thus significantly exceeding frequencies in healthy controls (4.5% each). Screening on cell-based assays excluded established antienteric antibodies. Antibody-positive sera were not associated with motility effects in organ bath experiments. However, they induced significant, tetrodotoxin (TTX)-insensitive secretion in Ussing chambers compared to antibody-negative sera. CONCLUSIONS & INFERENCES: Antineuronal antibodies were significantly more frequent in GI patients and associated with functional effects on bowel secretion. Future studies will determine whether such antibodies indicate patients who might benefit from additional antibody-directed therapies. However, well-characterized encephalitis related autoantibodies such as against DPPX were not detected, underlining their rarity in routine cohorts. PMID- 29345030 TI - Reproductive status-dependent kisspeptin and RFamide-related peptide (Rfrp) gene expression in female Damaraland mole-rats. AB - Damaraland mole rats (Fukomys damarensis) are cooperatively breeding, subterranean mammals that exhibit a high reproductive skew. Reproduction is monopolised by the dominant female of the group, whereas subordinates are physiologically suppressed to the extent that they are anovulatory. In these latter animals, it is assumed that normal gonadotropin-releasing hormone secretion from the hypothalamus is disrupted. The RFamide peptides kisspeptin (Kiss1) and RFamide-related peptide-3 (RFRP-3) are considered as potent regulators of gonadotropin release. To assess whether these neuropeptides are involved in the mechanism of reproductive suppression, we investigated the distribution and gene expression of Kiss1 and Rfrp by means of in situ hybridisation in wild-caught female Damaraland mole-rats with different reproductive status. In both reproductive phenotypes, substantial Kiss1 expression was found in the arcuate nucleus and only few Kiss1-expressing cells were detected in the anteroventral periventricular nucleus (AVPV), potentially as a result of low circulating oestradiol concentrations in breeding and nonbreeding females. Rfrp gene expression occurred in the dorsomedial nucleus, the paraventricular nucleus and the periventricular nucleus. While in female breeders and nonbreeders, plasma oestradiol levels were low and not significantly different, quantification of the hybridisation signal for both genes revealed significant differences in relation to reproductive status. Reproductively active females had more Kiss1-expressing cells and a higher number of silver grains per cell in the arcuate nucleus compared to nonreproductive females. This difference was most pronounced in the caudal part of the nucleus. No such differences were found in the AVPV. Furthermore, breeding status was associated with a reduced number of Rfrp-expressing cells in the anterior hypothalamus. This reproductive status-dependent expression pattern of Kiss1 and Rfrp suggests that both neuropeptides play a role in the regulation of reproduction in Damaraland mole rats. Enhanced long-term negative feedback effects of oestradiol could be responsible for the lower Kiss1 expression in the arcuate nucleus of reproductively suppressed females. PMID- 29345031 TI - Amazon drought and forest response: Largely reduced forest photosynthesis but slightly increased canopy greenness during the extreme drought of 2015/2016. AB - Amazon droughts have impacted regional ecosystem functioning as well as global carbon cycling. The severe dry-season droughts in 2005 and 2010, driven by Atlantic sea surface temperature (SST) anomaly, have been widely investigated in terms of drought severity and impacts on ecosystems. Although the influence of Pacific SST anomaly on wet-season precipitation has been well recognized, it remains uncertain to what extent the droughts driven by Pacific SST anomaly could affect forest greenness and photosynthesis in the Amazon. Here, we examined the monthly and annual dynamics of forest greenness and photosynthetic capacity when Amazon ecosystems experienced an extreme drought in 2015/2016 driven by a strong El Nino event. We found that the drought during August 2015-July 2016 was one of the two most severe meteorological droughts since 1901. Due to the enhanced solar radiation during this drought, overall forest greenness showed a small increase, and 21.6% of forests even greened up (greenness index anomaly >=1 standard deviation). In contrast, solar-induced chlorophyll fluorescence (SIF), an indicator of vegetation photosynthetic capacity, showed a significant decrease. Responses of forest greenness and photosynthesis decoupled during this drought, indicating that forest photosynthesis could still be suppressed regardless of the variation in canopy greenness. If future El Nino frequency increases as projected by earth system models, droughts would result in persistent reduction in Amazon forest productivity, substantial changes in tree composition, and considerable carbon emissions from Amazon. PMID- 29345032 TI - MiRNA-320a inhibits trophoblast cell invasion by targeting estrogen-related receptor-gamma. AB - AIM: MicroRNAs (miRs) play an essential role in the modulation of trophoblast function. We explored miR-320a expression in the human placenta. In addition, we report the promising effect and target functional loop of miR-320a in trophoblasts. METHODS: MiR-320a expression was investigated in both pre-eclamptic and healthy placenta tissues by quantitative real time-polymerase chain reaction to determine how miR-320a affected invasion, proliferation and migration in trophoblasts. A lipopolysaccharide (LPS) model was established in trophoblasts to reveal how LPS supplementation stimulated miR-320a expression. Western blot was applied to measure protein expression, which was involved in pathways modulated by miR-320a in pre-eclamptic placentas. RESULTS: MiR-320a expression was enhanced in the placental specimens of pre-eclamptic patients. Excessive miR-320a expression remarkably suppressed trophoblast invasion but did not affect migration or proliferation. However, transfection with miR-320a inhibitor reinforced trophoblast invasion in vitro. Luciferase assays verified that estrogen-related receptor-gamma (ERRgamma) served as a direct target of miR-320a. Quantitative real-time polymerase chain reaction and Western blot demonstrated that excessive miR-320a expression downregulated ERRgamma transcription and translation. Additionally, LPS supplementation showed excessive miR-320a expression and ERRgamma downregulation. Impaired ERRgamma and enhanced miR-320a expression occurred in PE placentas compared to controls. Pearson correlation and linear regression analysis revealed that miR-320a expression was negatively related to ERRgamma expression in normal and pre-eclamptic placentas. CONCLUSIONS: These findings indicate that miR-320a overexpression causes anomalous placentation by targeting ERRgamma. Our research reveals the promising effect of miR-320a and the ERRgamma functional loop on placentation. PMID- 29345033 TI - Total Synthesis and Conformational Study of Callyaerin A: Anti-Tubercular Cyclic Peptide Bearing a Rare Rigidifying (Z)-2,3- Diaminoacrylamide Moiety. AB - The first synthesis of the anti-TB cyclic peptide callyaerin A (1), containing a rare (Z)-2,3-diaminoacrylamide bridging motif, is reported. Fmoc-formylglycine diethylacetal was used as a masked equivalent of formylglycine in the synthesis of the linear precursor to 1. Intramolecular cyclization between the formylglycine residue and the N-terminal amine in the linear peptide precursor afforded the macrocyclic natural product 1. Synthetic 1 possessed potent anti-TB activity (MIC100 =32 MUm) while its all-amide congener was inactive. Variable temperature NMR studies of both the natural product and its all-amide analogue revealed the extraordinary rigidity imposed by this diaminoacrylamide unit on peptide conformation. The work reported herein pinpoints the intrinsic role that the (Z)-2,3-diaminoacrylamide moiety confers on peptide bioactivity. PMID- 29345034 TI - Precipitation frequency alters peatland ecosystem structure and CO2 exchange: Contrasting effects on moss, sedge, and shrub communities. AB - Climate projections forecast a redistribution of seasonal precipitation for much of the globe into fewer, larger events spaced between longer dry periods, with negligible changes in seasonal rainfall totals. This intensification of the rainfall regime is expected to alter near-surface water availability, which will affect plant performance and carbon uptake. This could be especially important in peatland systems, where large stores of carbon are tightly coupled to water surpluses limiting decomposition. Here, we examined the role of precipitation frequency on vegetation growth and carbon dioxide (CO2 ) balances for communities dominated by a Sphagnum moss, a sedge, and an ericaceous shrub in a cool temperate poor fen. Field plots and laboratory monoliths received one of three rainfall frequency treatments, ranging from one event every three days to one event every 14 days, while total rain delivered in a two-week cycle and the entire season to each treatment remained the same. Separating incident rain into fewer but larger events increased vascular cover in all peatland communities: vascular plant cover increased 6* in the moss-dominated plots, nearly doubled in the sedge plots, and tripled in the shrub plots in Low-Frequency relative to High Frequency treatments. Gross ecosystem productivity was lowest in moss communities receiving low-frequency rain, but higher in sedge and shrub communities under the same conditions. Net ecosystem exchange followed this pattern: fewer events with longer dry periods increased CO2 flux to the atmosphere from the moss while vascular plant-dominated communities became more of a sink for CO2 . Results of this study suggest that changes to rainfall frequency already occurring and predicted to continue will lead to increased vascular plant cover in peatlands and will impact their carbon-sink function. PMID- 29345035 TI - Pressure and pipes: from neuroimaging to virtual measurement. PMID- 29345036 TI - Application of molecular tools to elucidate the microbiota of seafood. AB - The aim of this review is to present the methodologies currently applied to identify microbiota and pathogens transmitted to humans through seafood consumption, focusing on molecular techniques and pointing out their importance, advantages, disadvantages and applicability. Knowledge of available techniques allows researchers to identify which technique best fits their expectations. With such discernment, it will be possible to infer which disadvantages will be present and, therefore, not interfering with the final result. Two methodologies can be employed for this purpose, dependent and independent cultures. However, the dependent culture has certain limitations that can be solved through the independent cultivation techniques, such as PCR, PFGE and NGS, especially through the sequencing of the 16S rRNA region, providing a complete view of microbial diversity. These have revolutionized microbiological knowledge, mainly because they allow for the identification of uncultivable micro-organisms, which represent a substantial portion of total micro-organisms, making it possible to elucidate not yet described taxa which may display pathogenic potential, besides quantifying microbial communities, microbiota genetics, translated proteins and produced metabolites. In addition, transcriptomic and metabolomic techniques also allow for the evaluation of possible impacts that microbial communities may create in their environment, as well as the determination of potential pathogenicity to humans. PMID- 29345037 TI - Prevalence of cognitive impairment in major depression and bipolar disorder. AB - OBJECTIVES: The current study examines prevalence of cognitive impairment in four mood disorder samples, using four definitions of impairment. The impact of premorbid IQ on prevalence was examined, and the influence of treatment response. METHODS: Samples were: (i) 58 inpatients in a current severe depressive episode (unipolar or bipolar), (ii) 69 unmedicated outpatients in a mild to moderate depressive episode (unipolar or bipolar), (iii) 56 outpatients with bipolar disorder, in a depressive episode, and (iv) 63 outpatients with bipolar disorder, currently euthymic. Cognitive assessment was conducted after treatment in Studies 1 (6 weeks of antidepressant treatment commenced on admission) and 2 (16-week course of cognitive behaviour therapy or schema therapy), allowing the impact of treatment response to be assessed. All mood disorder samples were compared with healthy control groups. RESULTS: The prevalence of cognitive impairment was highest for the inpatient depression sample (Study 1), and lowest for the outpatient depression sample (Study 2). Substantial variability in rates was observed depending on the definition of impairment used. Correcting cognitive performance for premorbid IQ had a significant impact on the prevalence of cognitive impairment in the inpatient depression sample. There was minimal evidence that treatment response impacted on prevalence of cognitive impairment, except in the domain of psychomotor speed in inpatients. CONCLUSIONS: As interventions aiming to improve cognitive outcomes in mood disorders receive increasing research focus, the issue of setting a cut-off level of cognitive impairment for screening purposes becomes a priority. This analysis demonstrates important differences in samples likely to be recruited depending on the definition of cognitive impairment and begins to examine the importance of premorbid IQ in determining who is impaired. PMID- 29345038 TI - Electrocatalytic Activity of a 2D Phosphorene-Based Heteroelectrocatalyst for Photoelectrochemical Cells. AB - Research into efficient synthesis, fundamental properties, and potential applications of phosphorene is currently the subject of intense investigation. Herein, solution-processed phosphorene or few-layer black phosphorus (FL-BP) sheets are prepared using a microwave exfoliation method and used in photoelectrochemical cells. Based on experimental and theoretical (DFT) studies, the FL-BP sheets are found to act as catalytically active sites and show excellent electrocatalytic activity for triiodide reduction in dye-sensitized solar cells. Importantly, the device fabricated based on the newly designed cobalt sulfide (CoSx ) decorated nitrogen and sulfur co-doped carbon nanotube heteroelectrocatalyst coated with FL-BP (FL-BP@N,S-doped CNTs-CoSx ) displayed an impressive photovoltaic efficiency of 8.31 %, outperforming expensive platinum based cells. This work paves the way for using phosphorene-based electrocatalysts for next-generation energy-storage systems. PMID- 29345039 TI - Successful treatment in a case of ultra-rapid cycling bipolar disorder is reflected in brain arousal regulation. PMID- 29345040 TI - Assessing and addressing cognitive impairment in bipolar disorder: the International Society for Bipolar Disorders Targeting Cognition Task Force recommendations for clinicians. AB - OBJECTIVES: Cognition is a new treatment target to aid functional recovery and enhance quality of life for patients with bipolar disorder. The International Society for Bipolar Disorders (ISBD) Targeting Cognition Task Force aimed to develop consensus-based clinical recommendations on whether, when and how to assess and address cognitive impairment. METHODS: The task force, consisting of 19 international experts from nine countries, discussed the challenges and recommendations in a face-to-face meeting, telephone conference call and email exchanges. Consensus-based recommendations were achieved through these exchanges with no need for formal consensus methods. RESULTS: The identified questions were: (I) Should cognitive screening assessments be routinely conducted in clinical settings? (II) What are the most feasible screening tools? (III) What are the implications if cognitive impairment is detected? (IV) What are the treatment perspectives? Key recommendations are that clinicians: (I) formally screen cognition in partially or fully remitted patients whenever possible, (II) use brief, easy-to-administer tools such as the Screen for Cognitive Impairment in Psychiatry and Cognitive Complaints in Bipolar Disorder Rating Assessment, and (III) evaluate the impact of medication and comorbidity, refer patients for comprehensive neuropsychological evaluation when clinically indicated, and encourage patients to build cognitive reserve. Regarding question (IV), there is limited evidence for current evidence-based treatments but intense research efforts are underway to identify new pharmacological and/or psychological cognition treatments. CONCLUSIONS: This task force paper provides the first consensus-based recommendations for clinicians on whether, when, and how to assess and address cognition, which may aid patients' functional recovery and improve their quality of life. PMID- 29345041 TI - Serum amyloid A, procalcitonin, highly sensitive C reactive protein and tumor necrosis factor alpha levels and acute inflammatory response in patients with hemolysis, elevated liver enzymes, low platelet count (HELLP) and eclampsia. AB - AIM: The aim of this study was to determine the relationship between serum amyloid A (SAA), procalcitonin (ProC), highly sensitive C reactive protein (hsCRP) and tumor necrosis factor (TNF) alpha activity in patients with pre eclampsia, eclampsia and hemolysis, elevated liver enzymes, low platelet count (HELLP), and the pathogenesis and severity of the disease. METHOD: Ninety patients at >= 32 gestational weeks, according to the last date of menstruation and ultra-sonographic measurements, diagnosed with pre-eclampsia (30 patients), eclampsia (30 patients) or HELLP syndrome (30 patients) were included in the study. Thirty healthy pregnant women from the outpatient clinic during the same period were recruited as the control. The age, gravida, parity, gestational age, systolic and diastolic blood pressures, proteinuria, hemoglobin, thrombocyte count, liver function tests (aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, SAA, TNF alpha, ProC and hsCRP levels during pregnancy) were determined and recorded. RESULTS: No statistically significant differences were detected between the four groups in terms of age, gravida, parity, gestational age and hemoglobin parameters (P > 0.05). When compared to the control, systolic and diastolic blood pressures, spot and 24 h urine protein levels, aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase, SAA, ProC, hsCRP and TNF alpha levels were significantly high and thrombocyte levels were low in the pre-eclamptic, eclamptic and HELLP groups (P < 0.05). CONCLUSION: The investigated parameters were useful to gain an understanding of the maternal inflammatory profile of pre-eclampsia and might be beneficial as markers to predict complications such as HELLP and eclampsia and to provide the necessary preventive approach in these patients. PMID- 29345042 TI - A systematic review of community-based interventions for the treatment of adolescents with overweight and obesity. AB - Adolescent obesity is a risk factor for obesity and other chronic disease in adulthood. Evidence for the effectiveness of community-based obesity treatment programs for adolescents is required to inform policy and clinical decisions. This systematic review aims to evaluate recent effective and scalable community based weight management programs for adolescents (13-17 years) who are overweight or obese. Eight databases (Medline, Embase, PsycINFO, CINAHL, Cochrane Central Register of Controlled Trials, Cochrane Database of Systematic Reviews, Informit, and Scopus) were searched for studies published between January 2011-2 March 2017 which are scalable in a community setting and reported primary outcome measures relating to weight. Following deduplication, 10,074 records were screened by title/abstract with 31 publications describing 21 programs included in this review. Programs were heterogeneous in nature (including length, number and frequency of sessions, parent-involvement and technology involvement). Reduction in adolescent BMIz ranged from 2 to 9% post-program and from 2 to 11% after varied lengths of follow-up. Study quality varied (n = 5 weak; n = 8 moderate; n = 8 high), and findings are limited by the risk of selection and retention bias in the included studies. Factors including the effectiveness and acceptability to the target population must be considered when selecting such community programs. PMID- 29345043 TI - Termiticidal activity of chitosan against the subterranean termites Reticulitermes flavipes and Reticulitermes virginicus. AB - BACKGROUND: Chitosan is a derivative form of chitin, which is the major component of exoskeletons of arthropods and the cell walls of fungi. The antimicrobial activity of chitosan against lepidopterans, aphids, fungi and bacteria has been extensively investigated, but only one report on the termiticidal effect of chitosan on termites has been published. In this study, we examined the termiticidal activity of chitosan by exposing single colonies of Reticulitermes flavipes (Kollar) and Reticulitermes virginicus Banks to wood treated with six different concentrations of chitosan solutions. Termite mortality and percent mass loss of wood samples after exposure to termites for 4 weeks were calculated. RESULTS: High termite mortality (>= 94%) occurred during exposure of R. flavipes termites to chitosan-treated wood with >=38 mg g-1 treatment concentrations (>= 2% chitosan), while <50% termite mortality was observed at lower treatment concentrations (11-15 mg g-1 ; 0.5% and 1% chitosan). For R. virginicus, 100% mortality was observed at all levels of treatment concentrations. A decrease in the percent mass loss of the wood sample was apparent in samples treated with solutions with an increasing chitosan concentration, with a significant difference (P < 0.05) between lower and higher treatment concentrations. Treatment retention in wood samples upon leaching was also determined and showed retention levels of between 0 and 30 mg g-1 chitosan retention. CONCLUSION: This study investigated the exposure of subterranean termites to chitosan as a wood preservative. The results show that chitosan treatments at sufficiently high loadings could protect wood against termites, preferably under non-leaching conditions. (c) 2018 Society of Chemical Industry. PMID- 29345044 TI - Pre-clinical Characterization of Absorption, Distribution, Metabolism and Excretion Properties of TAK-063. AB - TAK-063 is currently being developed to treat schizophrenia. In this study, we investigated the absorption, distribution, metabolism and excretion (ADME) properties of TAK-063 using several paradigms. Following oral administration of TAK-063 at 0.3 mg/kg, bioavailability of TAK-063 was 27.4% in rats and 49.5% in dogs with elimination half-lives of 3.1 hr in rats and 3.7 hr in dogs. TAK-063 is a highly permeable compound without P-glycoprotein (P-gp) or breast cancer resistance protein substrate liability and can be readily absorbed into systemic circulation via the intestine. TAK-063 can also cross the blood-brain barrier. TAK-063 was metabolized mainly by CYP2C8 and CYP3A4/5, while incubation with human liver microsomes produced the major human metabolite, M-I as well as several unknown minor metabolites. Metabolism of TAK-063 to M-I occurs through hydroxylation of the mono-substituted pyrazole moiety. In vitro, TAK-063 was observed to inhibit CYP2C8, CYP2C19 and P-gp with IC50 values of 8.4, 12 and 7.13 MUM, respectively. TAK-063 was primarily excreted in the faeces in rats and dogs with M-I as a predominant component. The pre-clinical data from these ADME studies demonstrate a favourable pharmacokinetic profile for TAK-063 with good brain distribution supporting the feasibility of targeting central nervous system regions involved in schizophrenia pathophysiology. TAK-063 has recently been investigated in a phase 2 clinical trial (NCT02477020). PMID- 29345045 TI - The in vitro release of cytokines and growth factors from fibrin membranes produced through horizontal centrifugation. AB - Platelet-rich fibrin membranes are biomaterials widely used for therapeutic purposes, and canonically produced through the processing of peripheral blood with fixed-angle rotor centrifuges. In this work, we evaluate the in vitro stability and release of cytokines and growth factors when these biomaterials are produced with a horizontal swing-out clinical centrifuge. Membranes produced from the blood of 14 donors were morphologically evaluated by scanning electron microscopy and fluorescence microscopy, and their stability was assessed by photographic recording after incubation in culture medium for up to 28 days. The release of 27 cytokines and growth factors was monitored for three weeks through a multiparametric immunoassay. The fibrin membranes presented complex three dimensional structure with a high density of nucleated cells. A large release of growth factors [platelet derived growth factor, fibroblastic growth factor (bFGF), and vascular endothelial growth factor] was detected in the first 24 h, followed by time-dependent decay, maintaining significant concentrations after three weeks. Both anti-inflammatory and pro-inflammatory cytokines presented different release peaks, maintaining high rates of elution for up to 21 days. Chemokines of relevance in tissue repair [RANTES, granulocyte colony-stimulating factor (G-CSF)] were also produced in large quantities throughout the experimental period. The present results demonstrate that blood-derived fibrin membranes with high structural stability and cell content can be generated by horizontal centrifugation, being able of a prolonged production/release of growth factors and pro- and anti-inflammatory cytokines. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1373-1380, 2018. PMID- 29345046 TI - Standardizing dose in dosimetric bronchial challenge tests. AB - Recent technical recommendations on bronchial challenge testing aim at standardized assessment of provocative dose of causing 20% decrease in FEV1 (PD20). The aim of this study was to investigate the effect of mode of nebulization on the output of a computerized dosimeter (APS) and to compare PD20 obtained by two different dosimetric systems in vivo. The output of the APS system was tested during continuous nebulization, and using simulated breaths, for intermittent actuations with four different durations. Using output data, a modified methacholine challenge protocol was applied for APS and compared with a standard set-up using Spira dosimeter in 14 asthmatic patients attending duplicate methacholine challenges using both systems, within median (range) 3 (1 6) days apart. The calculated output (mg min-1 ) with all the intermittent mode settings was significantly higher (P<0.001) than in the continuous mode, and in the intermittent mode, the output was dependent of the pulse duration. The PD20 values assessed with the APS and Spira systems were significantly correlated (r = 0.69; P<0.007), without systematic difference in the geometric means (P = 0.10). A moderate to good agreement was found for assessment of significant hyperresponsiveness. The results suggest that in dosimetric systems for bronchial challenge tests, the output of the nebulizer is dependent on the mode of nebulization, and this should be considered when standardizing the dose between devices and protocols. As long as the delivered dose is determined for the specified nebulization mode of the protocol, it may be possible to obtain comparable results between different devices. PMID- 29345047 TI - Effects of maternal heart sounds on pain and comfort during aspiration in preterm infants. AB - AIM: This study aimed to evaluate the effects of providing prerecorded maternal heart sounds on the level of pain and comfort that are experienced by preterm infants during aspiration. METHODS: This was a randomized controlled trial. Preterm infants (N = 62) who were receiving care or treatment at a neonatal intensive care unit were eligible for participation in this study. Infants in the intervention group (n = 32) were provided with prerecorded maternal heart sounds before, during, and after aspiration, whereas the infants in the control group (n = 30) received routine care. For the collection of the data, the "Preterm Infant Information Form" was used to record natal and postnatal information of the preterm infant, the "Premature Infant Pain Profile," assessed the level of pain, and the "Premature Infant Comfort Scale," assessed the level of comfort. RESULTS: There was a significant difference observed between the groups' pain levels during aspiration; however, the difference was not significant before and after aspiration. Furthermore, there was a significant difference observed between the groups' comfort levels prior to aspiration before and during aspiration; however, the difference was not significant after aspiration. CONCLUSION: Intervention with maternal heart sounds during aspiration effectively reduced pain and provided comfort to the premature infants. PMID- 29345048 TI - Urinary incontinence type, symptoms, and quality of life: A comparison between grand multipara and non-grand multipara women aged >=50 years. AB - AIM: Parity and age are risk factors for urinary incontinence (UI). The aim of this study was to compare grand multipara women (GMP) to non-grand multipara (NGMP) women concerning UI types (stress urinary incontinence [SUI], urge urinary incontinence [UUI]), symptoms, and quality of life. METHODS: This correlation comparative study used three tools: a demographic/health questionnaire, Questionnaire for Urinary Incontinence Diagnosis (QUID), and Incontinence Quality of Life (I-QOL). RESULTS: The sample included 132 women, from 50-88 years of age: 65 NGMP women (mean age: 67.23 years) and 67 GMP women (mean age: 65.04 years). The GMP group had a higher score, compared to the NGMP group, for UI type (by QUID) and a lower QOL (by I-QOL) , with none of the scores found to be statistically significant. By dividing the sample into age groups, 50-59 and >=60 years, the interaction between the parity and the age groups was found to be significant for both the SUI and UUI. CONCLUSION: The innovation of this study is the in-depth insight into the association between parity and age regarding UI type. PMID- 29345049 TI - Cryolipolysis for the treatment of submental fat: Review of the literature. AB - BACKGROUND: Submental fat accumulation is a common cosmetic concern. Cryolipolysis utilizes noninvasive cooling to lyse adipocytes. A cryolipolysis device was recently approved for treatment of submental fat. OBJECTIVE: This manuscript provides a review of the preclinical work and clinical trials related to cryolipolysis for the treatment of submental fat. Settings, efficacy, and side effects are also discussed. MATERIALS AND METHODS: A literature search was performed through Pubmed, EMBASE, Web of Science, and CINAHL, using the search terms "cryolipolysis," "submental," and "paradoxical adipose hyperplasia". Additional sources from the original source bibliographies were used to further supplement this review. RESULTS: There are 4 clinical trials and one case series (total 101 patients) that evaluated the use of cryolipolysis for treatment of submental fat. In these studies, there was a statistically significant reduction in submental fat and patients expressed high satisfaction with the treatment. Adverse effects were mild and transient. CONCLUSIONS: Cryolipolysis is a noninvasive cooling technique that is safe and effective for treatment of submental fat. To date, there are no reports of marginal mandibular nerve injury or paradoxical adipose hyperplasia following treatment with this device. PMID- 29345050 TI - Metabolic alterations in a rat model of hepatic ischaemia reperfusion injury: In vivo hyperpolarized 13 C MRS and metabolic imaging. AB - BACKGROUND & AIMS: Despite a number of studies addressing the pathophysiology of hepatic IRI, a gold standard test for early diagnosis and evaluation of IRI remains elusive. This study investigated the metabolic alterations in a rat model of hepatic IRI using the in vivo hyperpolarized 13C MRS and metabolic imaging. METHODS: Hyperpolarized 13 C MRS with IVIM-DWI was performed on the liver of 7 sham-operated control rats and 7 rats before and after hepatic IRI. RESULTS: The hepatic IRI-induced rats showed significantly higher ratios of [1-13 C] alanine/pyruvate, [1-13 C] alanine/tC, [1-13 C] lactate/pyruvate and [1-13 C] lactate/tC compared with both sham-operated controls and rats before IRI, whereas [1-13 C] pyruvate/tC ratio was decreased in IRI-induced rats. In IVIM-DWI study, apparent diffusion coefficient (ADC), f and D values in rats after hepatic IRI were significantly lower than those of rats before IRI and sham-operated controls. The levels of [1-13 C] alanine and [1-13 C] lactate were negatively correlated with ADC, f and D values, whereas the level of [1-13 C] pyruvate was positively correlated with these values. CONCLUSIONS: The levels of [1-13 C] alanine, [1-13 C] lactate and [1-13 C] pyruvate in conjunction with IVIM-DWI will be helpful to evaluate the hepatic IRI as well as these findings can be useful in understanding the biochemical mechanism associated with hepatic damage. PMID- 29345051 TI - MiR-595 Suppresses the Cellular Uptake and Cytotoxic Effects of Methotrexate by Targeting SLC19A1 in CEM/C1 Cells. AB - The human solute carrier family 19 member 1 (SLC19A1) is the gene coding for reduced folate carrier 1 (RFC1). In our previous work, we showed that the miR-595 related polymorphism, rs1051296 G>T, which was located in the 3'-untranslated region (3'-UTR) of SLC19A1, was associated with high methotrexate (MTX) plasma concentrations in patients with paediatric acute lymphoblastic leukaemia (ALL). This study aimed to investigate the role of miR-595 in the regulation of SLC19A1 expression and its effects on the cellular uptake and cytotoxicity of MTX in ALL CEM/C1 cells. Luciferase reporter assay was performed to validate SLC19A1 as a miR-595 target. RFC1 protein expression was determined via Western blotting. Intracellular MTX concentrations were measured by enzyme-linked immunosorbent assay (ELISA). Cell viability and apoptosis were assessed using Cell Counting Kit 8 (CCK-8) assay and flow cytometer, respectively. Compared to the negative control, miR-595 mimics induced a significant decrease in the relative luciferase activity by binding to the 3'-UTR of SLC19A1 harbouring the rs1051296 T allele (p < 0.01). Treatment of CEM/C1 cells with miR-595 mimics substantially reduced RFC1 protein expression, intracellular MTX levels, MTX-induced cytotoxicity and apoptosis rates compared to those of negative control. However, opposite results were observed in cells transfected with a miR-595 inhibitor. These findings suggested that miR-595 acts as a phenotypic regulator of MTX sensitivity in CEM/C1 cells by targeting SLC19A1. This study helped us to understand the mechanisms underlying the variable MTX responses observed in patients with ALL. PMID- 29345052 TI - HpaP, a novel regulatory protein with ATPase and phosphatase activity, contributes to full virulence in Xanthomonas campestris pv. campestris. AB - The ability of the bacterial phytopathogen Xanthomonas campestris pv. campestris (Xcc) to cause disease is dependent on the type III secretion system (T3SS). Proteins of the Xcc T3SS are encoded by hrp (hypersensitive response and pathogenicity) genes and whose expression is mainly controlled by the regulators HrpG and HrpX. Here, we describe the identification and characterization of a previously unknown regulatory protein (named HpaP), which plays important role in hrp gene expression and virulence in Xcc. Clean deletion of hpaP demonstrated reduced virulence and HR (hypersensitive response) induction of Xcc and alterations in cell motility and stress tolerance. Global transcriptome analyses revealed that most hrp genes were down regulated in the hpaP mutant, suggesting HpaP positively regulates hrp genes. GUS activity assays implied that HpaP regulates the expression of hrp genes via controlling the expression of hrpX. Biochemical analyses revealed that HpaP protein had both ATPase and phosphatase activity. While further site-directed mutagenesis of conserved residues in the PTP loop (a protein tyrosine phosphatase signature) of HpaP resulted in the loss of both phosphatase activity and regulatory activity in virulence and HR. Taken together, the findings identify a new regulatory protein that controls hrp gene expression and virulence in Xcc. PMID- 29345053 TI - Naringenin (4,5,7-trihydroxyflavanone) suppresses the development of precancerous lesions via controlling hyperproliferation and inflammation in the colon of Wistar rats. AB - Colon cancer is a world-wide health problem and one of the most dangerous type of cancer, affecting both men and women. Naringenin (4, 5, 7-trihydroxyflavanone) is one of the major flavone glycoside present in citrus fruits. Naringenin has long been used in Chinese's traditional medicine because of its exceptional pharmacological properties and non-toxic nature. In the present study, we investigated the chemopreventive potential of Naringenin against 1,2 dimethyhydrazine (DMH)-induced precancerous lesions, that is, aberrant crypt foci (ACF) and mucin depleted foci (MDF), and its role in regulating the oxidative stress, inflammation and hyperproliferation, in the colon of Wistar rats. Animals were divided into five groups. In groups 3-5, Naringenin was administered at the dose of 50 mg/kg b. wt. orally while in groups 2-4, DMH was administered subcutaneously in the groin at the dose of 20 mg/kg b. wt. once a week for first 5 weeks and animals were euthanized after 10 weeks. Administration of Naringenin ameliorated the development of DMH-induced lipid peroxidation, ROS formation, precancerous lesions (ACF and MDF) and it also reduced the infiltration of mast cells, suppressed the immunostaining of NF-kappaB-p65, COX-2, i-NOS PCNA and Ki 67 Naringenin treatment significantly attenuated the level of TNF-alpha and it also prevented the depletion of the mucous layer. Our findings suggest that Naringenin has strong chemopreventive potential against DMH-induced colon carcinogenesis but further studies are warranted to elucidate the precise mechanism of action of Naringenin. PMID- 29345054 TI - Isoflurane anesthesia in aged mice and effects of A1 adenosine receptors on cognitive impairment. AB - AIMS: Isoflurane may not only accelerate the process of Alzheimer's disease (AD), but increase the risk of incidence of postoperative cognitive dysfunction (POCD). However, the underlying mechanisms remain unknown. This study was designed to investigate whether isoflurane contributed to the POCD occurrence through A1 adenosine receptor (A1AR) in aged mice. METHODS: We assessed cognitive function of mice with Morris water maze (MWM) and then measured expression level of two AD biomarkers (P-tau and Abeta) and a subtype of the NMDA receptor (NR2B) in aged wild-type (WT) and homozygous A1 adenosine receptor (A1AR) knockout (KO) mice at baseline and after they were exposed to isoflurane (1.4% for 2 hours). RESULTS: For cognitive test, WT mice with isoflurane exposure performed worse than the WT mice without isoflurane exposure. However, A1AR KO mice with isoflurane exposure performed better than WT mice with isoflurane exposure. WT mice exposed to isoflurane had increased levels of Abeta and phosphorylated tau (P-tau). Levels of Abeta and P-tau were decreased in A1AR KO mice, whereas no differences were noted between KO mice with and without isoflurane exposure. NR2B expression was inversely related to that of P-tau, with no differences found between KO mice with and without isoflurane exposure. CONCLUSIONS: We found an association between isoflurane exposure, impairment of spatial memory, decreasing level of NR2B, and increasing levels of A-beta and P-tau, presumably via the activation of the A1A receptor. PMID- 29345055 TI - Npas4 deficiency interacts with adolescent stress to disrupt prefrontal GABAergic maturation and adult cognitive flexibility. AB - Healthy cognitive and emotional functioning relies on a balance between excitatory and inhibitory neurotransmission in the prefrontal cortex (PFC). This balance is largely established during early postnatal and adolescent developmental periods by maturation of the gamma-aminobutyric acid (GABA) system, including increased density of parvalbumin (PV) cells and perineuronal nets (PNNs). Genetic and/or environmental factors during adolescence can disrupt GABAergic maturation and lead to behavioral dysfunction in adulthood. The present study examined the interaction between chronic mild stress during adolescence and genetic deficiency of neuronal Per-Arnt-Sim domain 4 (Npas4), a brain-specific transcription factor that regulates inhibitory neurotransmission and that contributes to adolescent prefrontal GABAergic maturation. Male Npas4 wild-type (WT) and heterozygous (HET) mice were exposed to adolescent chronic stress and tested in adulthood for cognitive function using the attention set shifting task. When Npas4 deficiency was combined with adolescent stress, mice displayed impaired cognitive flexibility as observed by poor performance on the extra dimensional set shift task. At the cellular level, adolescent stress increased the percentage of PV cells surrounded by PNNs in the PFC of adult WT animals, an effect that was not observed in HET mice. Additionally, Npas4 deficiency and/or adolescent stress dysregulated expression of certain GABAergic system markers. These results suggest that Npas4 mediates susceptibility to adolescent stress and subsequent cognitive functioning and inhibitory tone in adulthood. This shows a novel gene by environment interaction related to resilience vs vulnerability to stress, with implications for adolescent onset disorders like schizophrenia. PMID- 29345056 TI - For when bacterial infections persist: Toll-like receptor-inducible direct antimicrobial pathways in macrophages. AB - Macrophages are linchpins of innate immunity, responding to invading microorganisms by initiating coordinated inflammatory and antimicrobial programs. Immediate antimicrobial responses, such as NADPH-dependent reactive oxygen species (ROS), are triggered upon phagocytic receptor engagement. Macrophages also detect and respond to microbial products through pattern recognition receptors (PRRs), such as TLRs. TLR signaling influences multiple biological processes including antigen presentation, cell survival, inflammation, and direct antimicrobial responses. The latter enables macrophages to combat infectious agents that persist within the intracellular environment. In this review, we summarize our current understanding of TLR-inducible direct antimicrobial responses that macrophages employ against bacterial pathogens, with a focus on emerging evidence linking TLR signaling to reprogramming of mitochondrial functions to enable the production of direct antimicrobial agents such as ROS and itaconic acid. In addition, we describe other TLR-inducible antimicrobial pathways, including autophagy/mitophagy, modulation of nutrient availability, metal ion toxicity, reactive nitrogen species, immune GTPases (immunity-related GTPases and guanylate-binding proteins), and antimicrobial peptides. We also describe examples of mechanisms of evasion of such pathways by professional intramacrophage pathogens, with a focus on Salmonella, Mycobacteria, and Listeria. An understanding of how TLR-inducible direct antimicrobial responses are regulated, as well as how bacterial pathogens subvert such pathways, may provide new opportunities for manipulating host defence to combat infectious diseases. PMID- 29345057 TI - Sodium chloride inhibits IFN-gamma, but not IL-4, production by invariant NKT cells. AB - Invariant NKT (iNKT) cells are a distinct subset of T cells that exert Janus-like functions in vivo by producing IFN-gamma and IL-4. Sodium chloride modulates the functions of various immune cells, including conventional CD4+ T cells and macrophages. However, it is not known whether sodium chloride affects iNKT cell function, so we addressed this issue. Sodium chloride inhibited IFN-gamma, but not IL-4, production by iNKT cells upon TCR or TCR-independent (IL-12 and IL-18) stimulation in a dose-dependent manner. Consistently, sodium chloride reduced the expression level of tbx21, but not gata-3, in iNKT cells stimulated with TCR engagement or IL-12 + IL-18. Sodium chloride increased phosphorylated p38 expression in iNKT cells and inhibitors of p38, NFAT5, SGK1, and TCF-1 restored IFN-gamma production by iNKT cells stimulated with sodium chloride and TCR engagement. Furthermore, adoptive transfer of iNKT cells pretreated with sodium chloride restored antibody-induced joint inflammation to a lesser extent than for untreated iNKT cells in Jalpha18 knockout mice. These findings suggest that sodium chloride inhibits IFN-gamma production by iNKT cells in TCR-dependent and TCR-independent manners, which is dependent on p38, NFAT5, SGK1, and TCF-1. These findings highlight the functional role of sodium chloride in iNKT cell-mediated inflammatory diseases. PMID- 29345058 TI - Frontline Science: Anti-PD-L1 protects against infection with common bacterial pathogens after burn injury. AB - Burn patients are susceptible to infections due, in part, to immune dysfunction. Upregulation of programmed death-1 (PD-1) receptor on T cells and programmed cell death ligand-1 (PD-L1) on myeloid cells contribute to immune dysfunction in nonburn-related sepsis. We hypothesized that PD-1/PDL1 interactions contribute to immune dysfunction after burn injury. To determine the impact of burn injury and infection on PD-L1, PD-1 and costimulatory receptor expression by leukocytes and its relationship to T cell functions. The efficacy of anti-PD-L1 antibody was evaluated in a clinically relevant mouse model of burn injury and bacterial infection. Mice underwent 35% scald burn followed by Pseudomonas aeruginosa or Staphylococcus aureus infection on day 4 postburn. Anti-PD-L1 was administered on day 3 postburn. Numbers and phenotype of leukocytes, plasma cytokine concentrations, bacterial clearance, organ injury, and survival were assessed. Burn injury and infection with P. aeruginosa caused a significant upregulation of PD-L1 on myeloid cells, along with a decrease in T cell numbers and function, significant multiorgan injury, and decreased survival. Treatment with anti-PD-L1 antibody improved bacterial clearance, reduced organ injury, and enhanced survival during Pseudomonas burn wound infection. Furthermore, anti-PD-L1 effectively protected against multiorgan injury, and improved bacterial clearance and survival following systemic S. aureus infection after burn injury. Blockade of PD-1/PD-L1 interactions might represent a viable treatment to improve outcomes among critically ill burn-injured subjects and increased leukocyte PD-L1 expression could serve as a valuable biomarker to select appropriate patients for such treatment. PMID- 29345059 TI - MicroRNA networks associated with active systemic juvenile idiopathic arthritis regulate CD163 expression and anti-inflammatory functions in macrophages through two distinct mechanisms. AB - Systemic juvenile idiopathic arthritis (SJIA) is a severe childhood arthropathy with features of autoinflammation. Monocytes and macrophages in SJIA have a complex phenotype with both pro- and anti-inflammatory properties that combine features of several well characterized in vitro conditions used to activate macrophages. An important anti-inflammatory phenotype is expression of CD163, a scavenger receptor that sequesters toxic pro-inflammatory complexes that is highly expressed in both active SJIA and macrophage activation syndrome (MAS). CD163 is most strongly up-regulated by IL-10 (M(IL-10)), and not by other conditions that reflect features seen in SJIA monocytes such as M(LPS+IC). MicroRNA plays key roles in integrating cellular signals such as those in macrophage polarization, and as such we hypothesize microRNAs regulate macrophage functional responses in SJIA including CD163 expression. We find that 2 microRNAs previously found to be elevated in active SJIA, miR-125a-5p and miR-181c, significantly reduced macrophage CD163 expression through 2 distinct mechanisms. Neither microRNA was elevated in M(IL-10) with robust CD163 expression, but were instead induced in M(LPS+IC) where they restricted CD163 mRNA expression. Mir-181 species directly targeted CD163 mRNA for degradation. In contrast, miR-125a-5p functions indirectly, as transcriptome analysis of miR-125a-5p overexpression identified "cytokine-cytokine receptor interactions" as the most significantly repressed gene pathway, including decreased IL10RA, required for IL-10-mediated CD163 expression. Finally, overexpression of miR-181c inhibited CD163 anti inflammatory responses to hemoglobin or high mobility group box 1 (HMGB1) complexes. Together, these data show that microRNA utilizes multiple mechanisms to integrate well-characterized polarization phenotypes and regulate macrophage functional properties seen in SJIA. PMID- 29345060 TI - Porcine NK cells display features associated with antigen-presenting cells. AB - NK cells are members of the innate immunity and play a central role in the defense against viral infections and cancer development, but also contribute to triggering and shaping adaptive immune responses. Human NK cells may express MHC II and costimulatory molecules, including CD86, CD80, and OX40 ligand, which allows them to stimulate the CD4+ T-cell response. In contrast, murine NK cells do not express MHC II or costimulatory molecules. Upon activation, mouse NK cells can acquire these molecules from dendritic cells (DCs) via intercellular membrane transfer, which leads to suppression of DC-induced CD4+ T-cell responses rather than stimulation of T-cell responses. Previous studies showed that porcine NK cells can express MHC II molecules, but it was unknown if porcine NK cells also express costimulatory molecules and whether NK cells may affect T-cell proliferation. We found that primary porcine NK cells express functional MHC II molecules and costimulatory CD80/86, particularly upon activation with IL-2/IL 12/IL-18, and that they are able to stimulate T-cell proliferation. In addition, we show that porcine NK cells are able to internalize antigens derived from killed target cells in an actin polymerization-dependent process. All together, these results indicate that porcine NK cells possess properties associated with APCs, which allows them to stimulate T-cell proliferation. PMID- 29345061 TI - Monocyte subsets exhibit transcriptional plasticity and a shared response to interferon in SIV-infected rhesus macaques. AB - The progression to AIDS is influenced by changes in the biology of heterogeneous monocyte subsets. Classical (CD14++CD16-), intermediate (CD14++CD16+), and nonclassical (CD14+CD16++) monocytes may represent progressive stages of monocyte maturation or disparate myeloid lineages with different turnover rates and function. To investigate the relationship between monocyte subsets and the response to SIV infection, we performed microarray analysis of monocyte subsets in rhesus macaques at three time points: prior to SIV infection, 26 days postinfection, and necropsy with AIDS. Genes with a 2-fold change between monocyte subsets (2023 genes) or infection time points (424 genes) were selected. We identify 172 genes differentially expressed among monocyte subsets in both uninfected and SIV-infected animals. Classical monocytes express genes associated with inflammatory responses and cell proliferation. Nonclassical monocytes express genes associated with activation, immune effector functions, and cell cycle inhibition. The classical and intermediate subsets are most similar at all time points, and transcriptional similarity between intermediate and nonclassical monocytes increases with AIDS. Cytosolic sensors of nucleic acids, restriction factors, and IFN-stimulated genes are induced in all three subsets with AIDS. We conclude that SIV infection alters the transcriptional relationship between monocyte subsets and that the innate immune response to SIV infection is conserved across monocyte subsets. PMID- 29345062 TI - Trans-mission control in the urinary tract: Local cytokine regulation of monocyte proliferation to combat infection. PMID- 29345063 TI - Immunotherapy: It is not just for cancer anymore. PMID- 29345064 TI - TLR8 ligation induces apoptosis of monocytic myeloid-derived suppressor cells. AB - Myeloid-derived suppressor cells (MDSCs) accumulate in tumors and the peripheral blood of cancer patients and demonstrate cancer-promoting activity across multiple tumor types. A limited number of agents are known to impact MDSC activity. TLR8 is expressed in myeloid cells. We investigated expression of TLR8 on MDSC and the effect of a TLR8 agonist, motolimod, on MDSC survival and function. TLR8 was highly expressed in monocytic MDSC (mMDSC) but absent in granulocytic MDSC (gMDSC). Treatment of human PBMC with motolimod reduced the levels of mMDSC in volunteers and cancer donors versus control (P < 0.001). Motolimod did not impact levels of gMDSC. The reduction of mMDSC was due to induced cell death by TLR8 ligation. Pretreatment of PBMC with a FAS neutralizing antibody inhibited motolimod-induced reduction of mMDSC (P < 0.001). Finally, we demonstrated that mMDSC impeded IL-2 secretion by CD3/CD28-activated T cells; IL 2 secretion was partially restored when cells were cocultured with motolimod (142 +/- 36 pg/ml vs. 59 +/- 13 pg/ml; P = 0.03). There is increasing evidence that MDSCs contribute to the progression of cancer by inhibiting tumor-directed T cells. TLR8 agonists may synergize with cancer immunotherapeutic approaches to enhance the antitumor effects of the adaptive immune response. PMID- 29345065 TI - Fingolimod targets cerebral endothelial activation to block leukocyte recruitment in the central nervous system. AB - Fingolimod (FTY720), an immunomodulator, is approved as an oral treatment for patients with relapsing forms of multiple sclerosis. Its effects are largely attributed to its mechanism of selectively retaining lymphocytes in the lymph nodes to reduce autoreactive T-cell recruitment in the CNS. In this study, we investigated the therapeutic effect of FTY720 on an animal model of CNS inflammation induced by intracerebral ventricle LPS injection. We found that FTY720 treatment significantly prevented LPS-induced neutrophil recruitment in the CNS by inhibiting leukocyte recruitment in cerebral microvessels. Furthermore, FTY720 also inhibited the expressions of adhesion molecules on the cerebral endothelium, but did not affect the expression levels of pro inflammatory cytokines (TNF-alpha and IL-6) and chemokines (CXCL1 and CXCL2) in the CNS parenchyma. The inhibition of endothelial activation was accompanied by reduced phosphorylation of signaling molecules, including serine/threonine specific protein kinase (Akt), STAT6, and nuclear factor-kappaB. This FTY720 attenuated inhibition of leukocyte recruitment and endothelial activation was reversed by blocking the functions of sphingosine kinase 2 or sphingosine-1 phosphate receptor 1. Our study demonstrated, for the first time, that FTY720 directly inhibits the phosphorylation of multiple signaling molecules in endothelial cells, thereby effectively blocking leukocyte recruitment in the CNS. PMID- 29345066 TI - Protease activated-receptor 2 is necessary for neutrophil chemorepulsion induced by trypsin, tryptase, or dipeptidyl peptidase IV. AB - Compared to neutrophil chemoattractants, relatively little is known about the mechanism neutrophils use to respond to chemorepellents. We previously found that the soluble extracellular protein dipeptidyl peptidase IV (DPPIV) is a neutrophil chemorepellent. In this report, we show that an inhibitor of the protease activated receptor 2 (PAR2) blocks DPPIV-induced human neutrophil chemorepulsion, and that PAR2 agonists such as trypsin, tryptase, 2f-LIGRL, SLIGKV, and AC55541 induce human neutrophil chemorepulsion. Several PAR2 agonists in turn block the ability of the chemoattractant fMLP to attract neutrophils. Compared to neutrophils from male and female C57BL/6 mice, neutrophils from male and female mice lacking PAR2 are insensitive to the chemorepulsive effects of DPPIV or PAR2 agonists. Acute respiratory distress syndrome (ARDS) involves an insult-mediated influx of neutrophils into the lungs. In a mouse model of ARDS, aspiration of PAR2 agonists starting 24 h after an insult reduce neutrophil numbers in the bronchoalveolar lavage (BAL) fluid, as well as the post-BAL lung tissue. Together, these results indicate that the PAR2 receptor mediates DPPIV-induced chemorepulsion, and that PAR2 agonists might be useful to induce neutrophil chemorepulsion. PMID- 29345067 TI - Supramolecular Gels Derived from the Salts of Variously Substituted Phenylacetic Acid and Dicyclohexylamine: Design, Synthesis, Structures, and Dye Adsorption. AB - A well-studied supramolecular synthon, namely, secondary ammonium monocarboxylate (SAM), was exploited to generate a new series of organic salts derived from variously substituted phenylacetic acid and dicyclohexylamine as potential low molecular-weight gelators. As much as 25 % of the SAM salts under study were gelators. The gels were characterized by rheology, and the morphology of the gel networks was studied by high-resolution electron microscopy. Single-crystal and powder XRD data were employed to study structure-property (gelation) correlations. One of the gels could adsorb a hydrophobic dye (Nile Red) more efficiently than that of a hydrophilic dye (Calcein) from dimethyl sulfoxide; this might provide useful clues towards the development of stain-removing gels. PMID- 29345068 TI - International Diabetes Federation 2017. AB - Ann M. Carracher, Payal H. Marathe, and Kelly L. Close are of Close Concerns (http://www.closeconcerns.com), a healthcare information company focused exclusively on diabetes and obesity care. Close Concerns publishes Closer Look, a periodical that brings together news and insights in these areas. Each month, the Journal of Diabetes includes this News feature, in which Carracher, Marathe, and Close review the latest developments relevant to researchers and clinicians. PMID- 29345069 TI - Automation aided optimization of cloning, expression and purification of enzymes of the bacterial sialic acid catabolic and sialylation pathways enzymes for structural studies. AB - The process of obtaining a well-expressing, soluble and correctly folded constructs can be made easier and quicker by automating the optimization of cloning, expression and purification. While there are many semiautomated pipelines available for cloning, expression and purification, there is hardly any pipeline that involves complete automation. Here, we achieve complete automation of all the steps involved in cloning and in vivo expression screening. This is demonstrated using 18 genes involved in sialic acid catabolism and the surface sialylation pathway. Our main objective was to clone these genes into a His tagged Gateway vector, followed by their small-scale expression optimization in vivo. The constructs that showed best soluble expression were then selected for purification studies and scaled up for crystallization studies. Our technique allowed us to quickly find conditions for producing significant quantities of soluble proteins in Escherichia coli, their large-scale purification and successful crystallization of a number of these proteins. The method can be implemented in other cases where one needs to screen a large number of constructs, clones and expression vectors for successful recombinant production of functional proteins. PMID- 29345070 TI - Following one's scientific compass. PMID- 29345071 TI - Detecting selection signatures on the X chromosome of the Chinese Debao pony. AB - The X chromosome shows a special interaction between demographic factors and genetic variation, and the analysis of X-linked genomic variation can therefore provide insights into the unique effects of demography and selection on the horse genome that cannot be readily detected by autosomal markers. Debao (DB) ponies have experienced intense selective pressure for the development of their small stature (<106 cm at adult height). To identify selective sweeps on the X chromosome of the DB pony, we performed a genome-wide scan of three Chinese horse breeds using an Equine SNP70 BeadChip. Using Yili and Mongolian horses (>134 cm at adult height) as reference groups, both FST and XP-EHH revealed that five regions on the X chromosome were under strong selection, resulting in 95 overlapping genes. Seven of these genes, SMS, PHEX, ACSL4, CHRDL1, CACNA1F, DKC1 and CDKL5, are involved in bone development, growth hormone secretion and fat deposition. The region showing the strongest selection pressure was located at the position of 86.6-87.5 Mb. The subsequent genome-wide association analysis of the adult height of three Chinese horse breeds detected the two most significant SNPs in the same region, and these two SNPs overlapped with the gene CHRDL1. As a member of the bone morphogenetic protein (BMP) superfamily, CHRDL1 antagonizes the function of BMP4 and plays an important role in embryonic bone formation and cartilage generation. Our results provide new insights into the X-linked selection in Chinese Debao pony. PMID- 29345072 TI - Genetic monitoring of horses in the Czech Republic: A large-scale study with a focus on the Czech autochthonous breeds. AB - We propose the first comprehensive in-depth study monitoring horses in the Czech Republic. We scanned 9,289 animals from 44 populations for 17 equine STRs. Other equids analysed involved Equus przewalskii and Equus asinus. The total of 228 different alleles were detected, with the mean number of 13.4 per locus. The highest allelic richness (AR) was found in the Welsh Part Bred (6.01), followed by the Camargue (5.93) and Czech Sport Pony (5.91), whereas the Friesian exhibited the lowest AR (3.06). Interpopulation differences explained approximately nine per cent of the total genetic diversity. Reynold's genetic distance ranged from 0.003 between the Czech Warmblood and the Slovak Warmblood to 0.404 between the Friesian and donkeys. Close genetic proximity between the Silesian Noriker and Noriker was revealed. The Moravian Warmblood was better differentiated and more distant from the Czech Warmblood than the Kinsky Horse and retained the original genes of the old Austro-Hungarian tribes. A high gene flow level and a lack of genetic structure were found in the seven studied populations. Despite the historical bottlenecks and previous inbreeding, the Czech-Moravian Belgian Horse, Hucul, Old Kladruber Horse and Silesian Noriker did not suffer a serious loss of genetic diversity due to genetic drift/low effective population size. A NeighborNet dendrogram revealed breeds not classified in their groups according to the nomenclature (the Friesian, Hafling and Merens). PMID- 29345073 TI - Improving accuracy of genomic prediction in Brangus cattle by adding animals with imputed low-density SNP genotypes. AB - Reliable genomic prediction of breeding values for quantitative traits requires the availability of sufficient number of animals with genotypes and phenotypes in the training set. As of 31 October 2016, there were 3,797 Brangus animals with genotypes and phenotypes. These Brangus animals were genotyped using different commercial SNP chips. Of them, the largest group consisted of 1,535 animals genotyped by the GGP-LDV4 SNP chip. The remaining 2,262 genotypes were imputed to the SNP content of the GGP-LDV4 chip, so that the number of animals available for training the genomic prediction models was more than doubled. The present study showed that the pooling of animals with both original or imputed 40K SNP genotypes substantially increased genomic prediction accuracies on the ten traits. By supplementing imputed genotypes, the relative gains in genomic prediction accuracies on estimated breeding values (EBV) were from 12.60% to 31.27%, and the relative gain in genomic prediction accuracies on de-regressed EBV was slightly small (i.e. 0.87%-18.75%). The present study also compared the performance of five genomic prediction models and two cross-validation methods. The five genomic models predicted EBV and de-regressed EBV of the ten traits similarly well. Of the two cross-validation methods, leave-one-out cross validation maximized the number of animals at the stage of training for genomic prediction. Genomic prediction accuracy (GPA) on the ten quantitative traits was validated in 1,106 newly genotyped Brangus animals based on the SNP effects estimated in the previous set of 3,797 Brangus animals, and they were slightly lower than GPA in the original data. The present study was the first to leverage currently available genotype and phenotype resources in order to harness genomic prediction in Brangus beef cattle. PMID- 29345074 TI - A century later. PMID- 29345075 TI - Genetic analyses of linear profiling data on 3-year-old Swedish Warmblood horses. AB - A linear profiling protocol was introduced in 2013 at tests for 3-year-old Swedish Warmblood horses. In this protocol, traits are subjectively described on a nine-point linear scale from one biological extreme to the other. This complements the traditional scoring where horses are evaluated in relation to the breeding objective. This study aimed to investigate the suitability of the linear information for genetic evaluation. Data on 22 conformation traits, 17 movement traits, 14 jumping traits and one temperament trait from 3,410 horses tested between 2013 and 2016 were analysed using an animal model. For conformation traits, the heritabilities ranged from 0.10 for description of hock joint from behind to 0.52 for shape of the neck. For movement traits, the highest heritability (0.54) was estimated for elasticity in trot and the lowest (0.08) for energy in walk. The heritabilities for jumping traits ranged from 0.05 for the ability to focus on the assignment to 0.57 for scope. Genetic correlations between linear traits and corresponding traditionally scored traits were strong ( 0.37 to in many cases <-0.9). The results show that the linear information is suitable for genetic evaluation and can be a useful tool for breeders. PMID- 29345076 TI - Rice-farming care for the elderly people with cognitive impairment in Japan: a case series. PMID- 29345077 TI - Gender difference in the association and presentation of visual hallucinations in dementia with Lewy bodies: statistical and methodological issues. PMID- 29345078 TI - Re: An investigation of public attitudes towards dementia in Bristol and South Gloucestershire using an online version of the Approaches to Dementia Questionnaire. PMID- 29345079 TI - Acreemagnosia (loss of financial knowledge): a symptom of functional and cognitive loss in frail elderly. PMID- 29345081 TI - Screening for latent tuberculosis infection among patients with rheumatoid arthritis in the era of biologics and targeted synthetic disease-modifying anti rheumatic drugs in India, a high-burden TB country: The importance of Mantoux and Quantiferon-TB Gold tests. AB - AIM: To test the validity of an augmented tuberculosis skin test (a-TST) combined with Quantiferon TB-gold(r) (QFTG) test for the screening of latent tuberculosis infection (LTBI) in patients with rheumatoid arthritis (RA) being considered for treatment with biologic disease-modifying anti-rheumatic drugs or targeted synthetic disease-modifying anti-rheumatic drugs. METHOD: Standard TST using 1 tuberculin unit (TU) of purified protein derivative (PPD, RT23 strain) was carried out. If the positivity was less as compared to the general population, then a-TST using 10 TU PPD was employed. Simultaneously, QFTG test was also performed. RESULTS: Using standard TST, 6/44 (13.6%), patients were positive compared to the reported figures of ~ 40% of the general population; 38 of the remaining TST-negative patients were then given an a-TST with 10 TU PPD; eight of them dropped out. Of the remaining 30 patients, eight (26.6%) were positive. Another 70 patients tested directly with a-TST; 22 (31.4%) were found positive. Thus, of a total of 100 patients tested with a-TST, 30 (30%) were positive. In 54 a-TST negative patients, QFTG was done; seven (13%) were positive. Thus, in combined a-TST with QFTG, 43% of the RA patients were found positive, suggestive of the presence of LTBI. CONCLUSION: Combined a-TST with QFTG testing gave 43% positivity among RA patients, which is close to the reported ~ 40% Mantoux positivity in the general population. Therefore, this method for the screening of LTBI in Indian patients with RA being considered for tumor necrosis factor alpha treatment could be satisfactory for offsetting TB flare. It may apply to other high-burden TB countries around the world. PMID- 29345080 TI - Environmental adaptation and vertical dissemination of ESBL-/pAmpC-producing Escherichia coli in an integrated broiler production chain in the absence of an antibiotic treatment. AB - High prevalence numbers of extended-spectrum beta-lactamase- (ESBL-)/plasmid mediated AmpC beta-lactamase- (pAmpC-) producing Escherichia coli in broiler chicken and their distribution along the broiler production chain is an ongoing problem in food production. We, therefore, investigated resistant isolates along the broiler production chain to determine whether there is a constantly occurring direct vertical transmission of the ESBL-/pAmpC-producing E. coli from the parent flocks to their offspring or not. We, furthermore, analysed the isolates concerning the occurrence of virulence factors and their ability to form biofilms to estimate their potential to effectively colonize broiler chickens and/or persist and survive in the environment of the broiler production facilities. Using whole genome sequencing, we could show that ESBL-/pAmpC-producing E. coli were likely transferred in a step-wise process along the broiler production chain but not directly from the parent flock to the fattening flock with every single batch of offspring chickens. Additionally, resistant E. coli strains showing an extraintestinal pathogenic genotype as well as high numbers of virulence associated genes including the production of curli fibres and cellulose have high capabilities to persist and spread in the broiler production chain. PMID- 29345082 TI - How should we respond to cannabis-impaired driving? PMID- 29345083 TI - Brief workshops to teach drug and alcohol first aid: A pilot evaluation study. AB - INTRODUCTION AND AIMS: Health and community service workers frequently encounter people with alcohol and other drug (AOD) problems in the course of their work, yet few have had training on how to respond effectively. A Drug and Alcohol First Aid workshop was developed by Lyndon, a non-government organisation treatment provider, and delivered to community and health sector workers and the general public. It presented evidence-based information regarding AOD use and harm reduction and treatment options. A pilot evaluation of the workshop was conducted to assess changes in participants' knowledge about AOD, methods of responding to use and attitudes towards individuals who use AOD, over a 3 month period. DESIGN AND METHODS: A self-report evaluation survey was developed and administered to workshop participants at three time points: before (T1), immediately after (T2) and 3 months after the workshop (T3). Paired samples t-tests examined changes in knowledge, role adequacy, motivation and personal views. RESULTS: A total of 142 participants completed the T1 survey, 184 completed the T2 survey and 98 completed the T3 survey. Between T1 and T2, there were significant increases in scores for knowledge and role adequacy, indicating significant improvements in these areas. No significant differences were found for motivation and personal views. At T3, knowledge and role adequacy scores remained significantly higher than at baseline. DISCUSSION AND CONCLUSIONS: Drug and Alcohol First Aid appears to be a viable initiative to improve AOD-related knowledge and role adequacy. However, alternative strategies may be required to shift negative attitudes towards individuals who use AOD. [Kostadinov VR, Roche AM, McEntee A, Allan JM, Meumann NR, McLaughlin LL. Brief workshops to teach drug and alcohol first aid: A pilot evaluation study. Drug Alcohol Rev 2018;37:23-27]. PMID- 29345084 TI - The lived experience of autologous stem cell-transplanted patients: Post transplantation and before discharge. AB - AIMS AND OBJECTIVES: To explore the lived experience of the patients post haematopoietic stem cell transplantation and specifically after engraftment and before discharge. BACKGROUND: Patients post-stem cell transplantation experience significant changes in all life aspects. Previous studies carried out by other researchers focused mainly on the postdischarge experience, where patients reported their perceptions that have always been affected by the life post transplantation and influenced by their surroundings. The lived experience of patients, specifically after engraftment and prior to discharge (the "transition" phase), has not been adequately explored in the literature. Doing so might provide greater insight into the cause of change post-haematopoietic stem cell transplantation. DESIGN: This study is a phenomenological description of the participants' perception about their lived experience post-haematopoietic stem cell transplantation. The study used Giorgi's method of analysis. METHODS: Through purposive sampling, 15 post-haematopoietic stem cell transplantation patients were recruited. Data were collected by individual interviews. Data were then analysed based on Giorgi's method of analysis to reveal the meaning of a phenomenon as experienced through the identification of essential themes. RESULTS: The analysis process revealed 12 core themes covered by four categories that detailed patients lived experience post-haematopoietic stem cell transplantation. The four categories were general transplant experience, effects of transplantation, factors of stress alleviation and finally life post transplantation. CONCLUSION: This study showed how the haematopoietic stem cell transplantation affected the patients' physical, psychological and spiritual well being. Transplantation also impacted on the patients' way of thinking and perception of life. Attending to patients' needs during transplantation might help to alleviate the severity of the effects and therefore improve experience. RELEVANCE TO CLINICAL PRACTICE: Comprehensive information about transplantation needs to be provided over different intervals and at different occasions. The role of the haematopoietic stem cell transplantation coordinators is important, and their communication skills and knowledge were found to be significant in patients' preparation and decision-making. As healthcare providers usually attend to only the patients' physical and psychological needs, spirituality was found to play an important role in maintaining morale and making sense of the meaning of life. PMID- 29345085 TI - Effects of ultrasonication variables on the activity and properties of alpha amylase preparation. AB - Recently, ultrasound was demonstrated to increase enzyme activity in food industry. In most studies, an enzyme-substrate mixture was ultrasonicated. Very little is reported on the ultrasonication of enzyme preparation; the effects of ultrasonication variables on the enzyme activity and properties remained unclear. In this study, an alpha-amylase preparation was ultrasonicated under different conditions. At the ultrasonic frequency, power, temperature, and time of 20 kHz, 25 W/mL, 30 degrees C, and 75 s, respectively, the secondary structure of the alpha-amylase was changed and that improved the catalytic activity by 47% over the control. The optimal temperature and pH of the alpha-amylase preparation did not change under the ultrasonic treatment. In addition, ultrasonic treatment increased kinetic parameters of the alpha-amylase including maximal velocity Vmax , Michaelis constant Km , turnover number Kcat , and catalytic specificity constant Kcat /Km . Nevertheless, the ultrasonicated alpha-amylase had lower thermal inactivation rate constant and half-life value than the nonultrasonicated enzyme. Ultrasonic treatment can be considered as a novel solution for improvement in enzyme activity. (c) 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:702-710, 2018. PMID- 29345086 TI - Safety of dipyrone (metamizole) in children-What's the risk of agranulocytosis? PMID- 29345087 TI - In this issue: February 2018. PMID- 29345088 TI - Retraction. AB - : 'The association of hypotension with the insertion of an abdominal retractor during lower abdominal surgery in pediatric patients: a retrospective observational study' by Rika Nakayama, Takahiro Mihara, Yoshihisa Miyamoto & Koui Ka.1 The above article from Pediatric Anesthesia, published online on July 7, 2015 in Wiley Online Library (http://wileyonlinelibrary.com) has been retracted by agreement between the authors, the Journal Editor in Chief, Andrew Davidson, and John Wiley & Sons Ltd. The retraction has been agreed following a review of the study data by the authors, which found that cases not satisfying the inclusion criteria were included and that there were data collection errors with respect to the patients' ages and sexes. As a result, the authors judged that the reproducibility of the results could not be guaranteed and have requested retraction. REFERENCE: Nakayama R, Mihara T, Miyamoto Y, Ka K. The association of hypotension with the insertion of an abdominal retractor during lower abdominal surgery in pediatric patients: a retrospective observational study. Pediatr Anesth. 2015;25:824-828. https://doi.org/10.1111/pan.12656. PMID- 29345089 TI - Increased lactate load of older red blood cell preparations increases blood lactate concentrations in infants during cardiac surgery. PMID- 29345090 TI - Comment on Chiem J, Ivanova I, Jimenez N. Anaphylactic reaction to tranexamic acid in an adolescent undergoing posterior spinal fusion. PMID- 29345091 TI - The responses of microbial temperature relationships to seasonal change and winter warming in a temperate grassland. AB - Microorganisms dominate the decomposition of organic matter and their activities are strongly influenced by temperature. As the carbon (C) flux from soil to the atmosphere due to microbial activity is substantial, understanding temperature relationships of microbial processes is critical. It has been shown that microbial temperature relationships in soil correlate with the climate, and microorganisms in field experiments become more warm-tolerant in response to chronic warming. It is also known that microbial temperature relationships reflect the seasons in aquatic ecosystems, but to date this has not been investigated in soil. Although climate change predictions suggest that temperatures will be mostly affected during winter in temperate ecosystems, no assessments exist of the responses of microbial temperature relationships to winter warming. We investigated the responses of the temperature relationships of bacterial growth, fungal growth, and respiration in a temperate grassland to seasonal change, and to 2 years' winter warming. The warming treatments increased winter soil temperatures by 5-6 degrees C, corresponding to 3 degrees C warming of the mean annual temperature. Microbial temperature relationships and temperature sensitivities (Q10 ) could be accurately established, but did not respond to winter warming or to seasonal temperature change, despite significant shifts in the microbial community structure. The lack of response to winter warming that we demonstrate, and the strong response to chronic warming treatments previously shown, together suggest that it is the peak annual soil temperature that influences the microbial temperature relationships, and that temperatures during colder seasons will have little impact. Thus, mean annual temperatures are poor predictors for microbial temperature relationships. Instead, the intensity of summer heat-spells in temperate systems is likely to shape the microbial temperature relationships that govern the soil-atmosphere C exchange. PMID- 29345092 TI - Known unknowns: Examining the burden of neurocognitive impairment in the end stage renal failure population. AB - The burden of neurocognitive impairment (NCI) in patients receiving maintenance dialysis represents a spectrum of deficits across multiple cognitive domains that are associated with hospitalization, reduced quality-of-life, mortality and forced decision-making around dialysis withdrawal. Point prevalence data suggest that dialysis patients manifest NCI at rates 3- to 5-fold higher than the general population, with executive function the most commonly affected cognitive domain. The unique physiology of the renal failure state and maintenance dialysis appears to drive an excess of vascular dementia subtype compared to the general population where classical Alzheimer's disease predominates. Despite the absence of evidence-based cost-effective therapies for NCI, detecting it in this population creates opportunity to proactively personalize care through education, supported decision making and targeted communication strategies to cover specific areas of deficit and help define goals of care. This review discusses NCI in the dialysis setting, including developments in the definition of neurocognitive impairment, dialysis-specific epidemiology across modalities, screening strategies and opportunities for dialysis providers in this space. PMID- 29345094 TI - But is it 'evidence'? PMID- 29345093 TI - Rapid fabrication of detachable three-dimensional tissues by layering of cell sheets with heating centrifuge. AB - Confluent cultured cells on a temperature-responsive culture dish can be harvested as an intact cell sheet by decreasing temperature below 32 degrees C. A three-dimensional (3-D) tissue can be fabricated by the layering of cell sheets. A resulting 3-D multilayered cell sheet-tissue on a temperature-responsive culture dish can be also harvested without any damage by only temperature decreasing. For shortening the fabrication time of the 3-D multilayered constructs, we attempted to layer cell sheets on a temperature-responsive culture dish with centrifugation. However, when a cell sheet was attached to the culture surface with a conventional centrifuge at 22-23 degrees C, the cell sheet hardly adhere to the surface due to its noncell adhesiveness. Therefore, in this study, we have developed a heating centrifuge. In centrifugation (55g) at 36-37 degrees C, the cell sheet adhered tightly within 5 min to the dish without significant cell damage. Additionally, centrifugation accelerated the cell sheet-layering process. The heating centrifugation shortened the fabrication time by one-fifth compared to a multilayer tissue fabrication without centrifugation. Furthermore, the multilayered constructs were finally detached from the dishes by decreasing temperature. This rapid tissue-fabrication method will be used as a valuable tool in the field of tissue engineering and regenerative therapy. (c) 2018 American Institute of Chemical Engineers Biotechnol. Prog., 34:692-701, 2018. PMID- 29345095 TI - The term will survive. PMID- 29345096 TI - Psychiatric sequelae of corticosteroid use in hematology in Australia: A qualitative study. AB - Despite widespread steroid usage for treating hematological conditions, minimal attention focuses on associated psychiatric side-effects. In the present study, we examined hematology patients' experiences of high-dose steroid treatment. This was undertaken by the use of a qualitative, descriptive design, which included convenience sampling and the inductive, cyclic, and constant comparative thematic analysis of interview transcripts. Eighteen patients participated, who were diagnosed with lymphoma, myeloma, leukemia, or idiopathic thrombocytopenia purpura. Four themes emerged: side-effects, misattribution of cause, self management, and fragmented information. The study results revealed that hematology patients administered steroids can experience negligible to extensive erratic side-effects, with severe adverse repercussions. Psychological reactions to steroids are often misattributed. Patients mostly self-manage adverse effects experienced and receive only fragmented preparatory information, often not understanding steroid side-effects. Nurses could provide helpful "in the moment" education for inpatients who misunderstood steroid-related adverse effects, such as aggressive urges. Adverse repercussions for family were occasionally evident. Education, support, and ongoing care for patients experiencing adverse steroid side-effects are inadequate. Health professionals need to develop patient- and family-centered educational resources for potential, unpredictable, and usually adverse steroid side-effects. PMID- 29345097 TI - The diagnostic value of the functional lumen imaging probe versus high-resolution anorectal manometry in patients with fecal incontinence. AB - BACKGROUND: The functional lumen imaging probe (EndoFLIP(r) ) is a new technology that measures the distensibility of the anal canal represented by the anal distensibility index. The aims of this study were (i) to compare the anal distensibility index to anal pressure in a cohort of patients with fecal incontinence (FI) and (ii) to compare the diagnostic value of the EndoFLIP(r) to that of high-resolution anorectal manometry (HRAM) in the same cohort of patients. METHODS: Eighty-three consecutive patients with FI who underwent EndoFLIP(r) and HRAM assessments were enrolled. The diagnostic value of the EndoFLIP(r) was compared to that of HRAM and agreement between EndoFLIP(r) and HRAM data was assessed. KEY RESULTS: More than 70% of the patients diagnosed with anal deficiency at rest and/or during voluntary contractions by HRAM had the same diagnosis using the EndoFLIP(r) . Two patients with higher distensibility indexes at rest had normal anal resting pressures. Sixteen patients with a normal EndoFLIP(r) index (ie, normal distensibility index at rest and during voluntary contractions) had an abnormal HRAM result. Seven of these 16 patients (44%) had no sphincter lesion or neuropathic disorder that could explain an abnormal anal sphincter function. CONCLUSIONS & INFERENCES: We demonstrated that the anal distensibility index and HRAM results are largely in agreement. We did, however, identify several discrepancies between the two techniques, indicating that they may be complementary. PMID- 29345098 TI - Influence of maternal obesity on fetal growth at different periods of pregnancies with normal glucose tolerance. AB - AIM: We aimed to examine the influence of maternal obesity on fetal growth in utero at different periods of pregnancies with normal glucose tolerance. METHODS: A retrospective cohort study on 356 pregnant women with normal glucose tolerance was conducted. The women were categorized by pre-pregnancy body mass index (BMI) as obese (OB; BMI >= 25.0 kg/m2 ) or non-obese (n-OB). Z-scores of the fetal abdominal circumference (AC) and the rate of fetal macrosomia (AC >= 90th percentile) at 19, 30, and 36 gestational weeks (GW) were compared between the two groups. Maternal demographics (age, parity, height, pre-pregnancy BMI, history of prior large-for-gestational-age delivery) were compared between the pregnancies with and without fetal macrosomia at each gestational age. Multiple logistic regression analysis was performed to determine the independent risk factors for fetal macrosomia. RESULTS: Birthweights of the neonates were significantly higher in the OB group. Z-scores of the fetal AC were significantly higher in the OB group at 30 and 36 GW, while no significant difference was found at 19 GW. The rates of fetal macrosomia in the OB group were also higher at 30 and 36 GW, while maternal obesity was not associated with fetal macrosomia at 19 GW. Pre-pregnancy BMI was detected as the independent predictor of fetal macrosomia at 30 GW (odds ratio, 1.19 [95% CI]) and 36 GW (odds ratio, 1.13 [95% CI]). CONCLUSION: Maternal pre-pregnancy obesity has a promoting effect on fetal growth from the third trimester through birth. PMID- 29345099 TI - Aortic versus carotid intima-media thickness and impact of aortic valve disease. AB - BACKGROUND AND AIMS: Intima-media thickness is a marker for atherosclerosis but is also influenced by shear stress and flow. We evaluated the relation between intima-media thickness of the descending aorta (AoIMT) and the common carotid artery (CIMT) in patients with and without severe aortic valve disease (sAVD). METHODS: A total of 310 patients (233 with sAVD, 77 without) were examined with regard to AoIMT and CIMT using transesophageal echocardiography and carotid ultrasound, respectively, before valvular and/or aortic surgery. Digitally stored B-mode images were used for semiautomatic AoIMT and CIMT measurements. RESULTS: There were no significant differences in patients with or without sAVD with regard to AoIMT (1.35 +/- 0.31 vs. 1.35 +/- 0.33 mm) or CIMT (0.80 +/- 0.15 vs. 0.78 +/- 0.16 mm). The correlations between AoIMT and CIMT were r = 0.29 in patients with and r = 0.51 in patients without sAVD, and the difference between these correlations was significant (P<0.05). In multivariate regression, age was the main determinant for AoIMT and CIMT in both groups, further in sAVD, the aortic mean pressure gradient (Pmean ) was a determinant of AoIMT, but not of CIMT. CONCLUSIONS: The correlation between CIMT and AoIMT is weaker in patients with sAVD compared to those without sAVD. Pmean is also a significant predictor of AoIMT, but not of CIMT. This implies that, in addition to the atherosclerotic process, turbulent aortic flow or altered blood flow helicity created by large stroke volumes and diastolic flow reversal or high-velocity jets, affect the intima-media of the descending aorta and common carotid artery differently. PMID- 29345100 TI - Relationship between orthodox and traditional medical practitioners in the transmission of traditional medical knowledge in Nigeria. AB - BACKGROUND: The problem of incomplete transmission of traditional medical knowledge to the younger generation is of concern to information professionals especially in developing countries where most rural communities depend on traditional medicine for primary health care. OBJECTIVE: The purpose of this study was to investigate the collaboration between orthodox and traditional medical practitioners as well as the implication of the collaboration for transmission of traditional medical knowledge in Nigeria. METHOD: Eighteen communities were purposively selected from six states in south-western Nigeria. Snowball technique was used in selecting 110 traditional medical practitioners. Three key informant interviews and two focus group discussion sessions were conducted in each state. Data were analysed thematically. DISCUSSION: Results showed the existence of a low level of collaboration mainly in the form of patient referrals which were not performed officially and mostly one sided. This was attributed to the negative perception of traditional medicine by orthodox practitioners and the failure of government to give traditional medicine its due recognition. This was reportedly responsible for the lack of interest by children of traditional medical practitioners to acquire traditional medical knowledge. CONCLUSION: The study recommends inclusion of traditional medicine in the health policy and educational curriculum from the basic level. PMID- 29345101 TI - A Pdgf-cCreERT2 knock-in mouse model for tracing PDGF-C cell lineages during development. AB - PDGF-C, a member of the platelet-derived growth factor (PDGF) family, plays important roles in the development of craniofacial structures, the neural system, the vascular system, and tumors. PDGF-C could also be required for the regulation of certain types of stem or progenitor cells as suggested by its expression in the regions where these cells are located. To further characterize the role of PDGF-C in development, we generated a Pdgf-cCreERT2 mouse strain, in which a tamoxifen-inducible Cre (CreERT2) cDNA was specifically targeted into the Pdgf-c genomic locus and controlled by the endogenous Pdgf-c regulatory elements. We also showed that Cre activity in this mouse strain could be specifically induced by tamoxifen, which allowed the fate of PDGF-C-expressing cells to be traced at various stages of development. Using this model system, we demonstrated for the first time that PDGF-C-expressing cells could be multipotent, generating multiple cell lineages required for the formation of the cerebellum. Therefore, the Pdgf cCreERT2 mouse strain generated in this study will be a valuable transgenic tool for exploring the function of PDGF-C in development and stem cell biology. PMID- 29345102 TI - The mycobiota of the sand fly Phlebotomus perniciosus: Involvement of yeast symbionts in uric acid metabolism. AB - The knowledge of the fungal mycobiota of arthropods, including the vectors of human and animal diseases, is still limited. Here, the mycobiota associated with the sand fly Phlebotomus perniciosus, the main vector of leishmaniasis in the western Mediterranean area, by a culture-dependent approach (microbiological analyses and sequencing of the 26S rRNA gene), internal transcribed spacer (ITS) rRNA amplicon-based next-generation sequencing, fluorescence in situ hybridisation (FISH), and genome sequencing of the dominant yeast species was investigated. The dominant species was Meyerozyma guilliermondii, known for its biotechnological applications. The focus was on this yeast and its prevalence in adults, pupae and larvae of reared sand flies (overall prevalence: 57.5%) and of field-collected individuals (overall prevalence: 9%) was investigated. Using whole-mount FISH and microscopic examination, it was further showed that M. guilliermondii colonizes the midgut of females, males and larvae and the distal part of Malpighian tubules of female sand flies, suggesting a possible role in urate degradation. Finally, the sequencing and analysis of the genome of M. guilliermondii allowed predicting the complete uric acid degradation pathway, suggesting that the yeast could contribute to the removal of the excess of nitrogenous wastes after the blood meal of the insect host. PMID- 29345103 TI - Incidence of Common Cancers in Users of Antimuscarinic Medications for Overactive Bladder: A Danish Nationwide Cohort Study. AB - The purpose of this study was to estimate the incidence rate (IR) of 10 common cancers in new users of antimuscarinic overactive bladder (OAB) medications. We conducted a cohort study using data recorded in Danish registers for patients newly exposed to the OAB drugs, darifenacin, fesoterodine, oxybutynin, solifenacin, tolterodine or trospium in years 2004-2012, aged >=18 years and without cancer before treatment initiation. We estimated IRs for each study cancer (bladder, breast, colorectal, lung, melanoma, non-Hodgkin lymphoma, pancreas, prostate, renal and uterine), standardised by age and sex and explored IR trends over time since treatment initiation. For all cancer analyses, only the first incident targeted cancer was considered. Of 72,917 patients (60% women; mean age at treatment start: 66 years), 3475 developed a study cancer during 259,072 person-years of follow-up. The most common study cancers were prostate (48.1% of study cancers in men), breast (40.0% of study cancers in women) and lung (15.4% of all study cancers). The overall standardised study cancer IR was 5.4 per 1000 person-years (95% confidence interval, 5.3-5.6); IRs were similar across individual OAB drugs. The standardised IRs for bladder and prostate cancers, which have symptoms in common with OAB, were highest in the first 6 months of treatment initiation and lower thereafter. In contrast, IRs for other study cancers were nearly constant during follow-up. Cancer IRs did not vary substantially by individual OAB drug. Protopathic bias is a plausible explanation for the higher rates of bladder and prostate cancers observed soon after starting OAB drug treatment. PMID- 29345104 TI - A Self-Growing Strategy for Large-Scale Crystal Assembly Tubes. AB - Assembled tubular materials have attracted widespread attention due to their potential applications in catalysis, bionics, and optic-electronics. Many versatile methods, including template assistance and self-assembly, have been developed for fabrication of tubular materials. Here we demonstrate a self growing strategy to prepare large-scale crystal assembly tubes. Addition of the template and the need for the sophisticated equipment are avoided with this method. The sidewall of the tubes is composed of a layer of polyhedral crystals that are connected together through grain coalescence. We demonstrate that the assembled tubular structure is obtained by the synergetic effect of the passivation layer and the dissolution-recrystallization process. This facile one step strategy and the formation mechanism will offer guidance for fabrication of new superstructures. PMID- 29345105 TI - OsGATA7 modulates brassinosteroids-mediated growth regulation and influences architecture and grain shape. PMID- 29345106 TI - National study of the nutritional status of Korean older adults with dementia who are living in long-term care settings. AB - AIM: To evaluate the nutritional status of older adults with dementia who were living in long-term care settings. METHODS: As a secondary analysis, this study used the data from the Nationwide Survey on Dementia Care in Korea that was conducted between December 1, 2010, and August 31, 2011, which surveyed 3472 older adults with dementia, aged >=60 years (mean age: 81.24 years), who were residing in 248 randomly selected long-term care settings in South Korea. Twenty three different variables that related to the participants' demographics, diseases, and functional and nutritional characteristics were selected. The nutritional status was assessed by using the Mini Nutritional Assessment (MNA). Descriptive statistics, an ANOVA, and a chi-squared test were used to analyze the data. RESULTS: The mean MNA score of the participants was 17.90. The malnutrition rate was 38.4% (n = 1333), with 54.7% (n = 1900) of the participants at risk for malnutrition. The largest population with malnutrition resided in long-term care hospitals (47.9%), followed by nursing homes (34.1%), and group homes (25.9%). Being older and female, while exhibiting higher cognitive impairment, more neuropsychiatric symptoms, higher functional dependency, and a higher number of disabilities, were associated with poor nutritional status. CONCLUSION: The nutritional status of older adults with dementia who were living in long-term care settings in South Korea was poor and associated with multiple factors. Paying special attention to recognizing, assessing, preventing, and treating malnutrition in this population is necessary. PMID- 29345107 TI - Introduction to methodology of dose-response meta-analysis for binary outcome: With application on software. AB - OBJECTIVE: Dose-response meta-analysis (DRMA) is widely applied to investigate the dose-specific relationship between independent and dependent variables. Such methods have been in use for over 30 years and are increasingly employed in healthcare and clinical decision-making. In this article, we give an overview of the methodology used in DRMA. METHODS: We summarize the commonly used regression model and the pooled method in DRMA. We also use an example to illustrate how to employ a DRMA by these methods. RESULTS: Five regression models, linear regression, piecewise regression, natural polynomial regression, fractional polynomial regression, and restricted cubic spline regression, were illustrated in this article to fit the dose-response relationship. And two types of pooling approaches, that is, one-stage approach and two-stage approach are illustrated to pool the dose-response relationship across studies. The example showed similar results among these models. CONCLUSION: Several dose-response meta-analysis methods can be used for investigating the relationship between exposure level and the risk of an outcome. However the methodology of DRMA still needs to be improved. PMID- 29345108 TI - High neutrophil-to-lymphocyte ratio predicts poor prognosis in patients with squamous cell carcinoma of the head and neck treated with definitive chemoradiotherapy. AB - AIM: To evaluate the role of neutrophil-to-lymphocyte ratio as a prognostic marker in squamous cell carcinoma of the head and neck treated with definitive chemoradiotherapy. METHODS: A retrospective chart review was performed on patients presenting to our service between 2001 and 2014. Overall survival (OS) and progression-free survival (PFS) were calculated using Kaplan-Meier estimates. The association between neutrophil-to-lymphocyte ratio and survival was analyzed by both univariate and multivariate analysis. RESULTS: Across all patients, OS and PFS at 5 years was 59% and 54%, respectively. Increasing T stage correlated with a statistically significant decrease in OS (P = 0.004) and PFS (P = 0.005). Both overall (P = 0.003) and PFS (P = 0.002) were highest in lifetime nonsmokers and lowest in current smokers. Patients who commenced treatment in 2010 or later had a significantly greater overall (P = 0.014) and PFS (P = 0.009) compared to those treated prior. Patients with p16 negative tumors had a significantly lower overall (P < 0.001) and PFS (P < 0.001) compared to those with p16 positive tumors. Patients treated with cisplatin had an overall and PFS of 66.8% and 59.9% respectively at 5 years. Patients with a neutrophil-to lymphocyte ratio of less than 4 at treatment initiation had a significantly greater overall (P = 0.015) and PFS (P = 0.017). The trend for OS remained significant in multivariate analysis (P = 0.05). CONCLUSION: A high neutrophil to-lymphocyte ratio at treatment initiation is a negative predictive marker for squamous cell carcinoma of the head and neck treated with definitive chemoradiotherapy. PMID- 29345109 TI - Effectiveness of smartphone technologies on glycaemic control in patients with type 2 diabetes: systematic review with meta-analysis of 17 trials. AB - Patient education and behavioural interventions for self-management of type 2 diabetes mellitus (T2DM) are effective but place demands on manpower resources. This systematic review aimed to investigate the effectiveness of smartphone technologies (STs) for improving glycaemic control among T2DM patients. CENTRAL, MEDLINE, Embase, CINAHL and ScienceDirect were searched through December 2016. Randomized controlled trials comparing STs with usual diabetes care among T2DM patients and reporting change in glycated haemoglobin (HbA1c) level were included. Seventeen trials (2,225 participants) were included. There was a significant reduction in HbA1c (pooled weighted mean difference: -0.51%; 95% confidence interval: -0.71% to -0.30%; p < 0.001), favouring ST intervention. The pooled weighted mean difference was -0.83% in patients with T2DM <8.5 years and 0.22% in patients with T2DM >=8.5 years, with significant subgroup difference (p = 0.007). No subgroup differences were found among different follow-up durations, trial locations, patients' age, healthcare provider contract time, baseline body mass index and baseline HbA1c. Compared with usual diabetes care, STs improved glycaemic control among T2DM patients, especially for patients at earlier disease stages (duration of diagnosis <8.5 years). STs could be a complement or alternative to labour-intensive patient education and behavioural interventions, but more studies on up-to-date technologies are needed. PMID- 29345110 TI - Remarkable similarity in Plasmodium falciparum and Plasmodium vivax geranylgeranyl diphosphate synthase dynamics and its implication for antimalarial drug design. AB - Malaria, mainly caused by Plasmodium falciparum and Plasmodium vivax, has been a growing cause of morbidity and mortality. P. falciparum is more lethal than is P. vivax, but there is a vital need for effective drugs against both species. Geranylgeranyl diphosphate synthase (GGPPS) is an enzyme involved in the biosynthesis of quinones and in protein prenylation and has been proposed to be a malaria drug target. However, the structure of P. falciparumGGPPS (PfGGPPS) has not been determined, due to difficulties in crystallization. Here, we created a PfGGPPS model using the homologous P.vivaxGGPPS X-ray structure as a template. We simulated the modeled PfGGPPS as well as PvGGPPS using conventional and Gaussian accelerated molecular dynamics in both apo- and GGPP-bound states. The MD simulations revealed a striking similarity in the dynamics of both enzymes with loop 9-10 controlling access to the active site. We also found that GGPP stabilizes PfGGPPS and PvGGPPS into closed conformations and via similar mechanisms. Shape-based analysis of the binding sites throughout the simulations suggests that the two enzymes will be readily targeted by the same inhibitors. Finally, we produced three MD-validated conformations of PfGGPPS to be used in future virtual screenings for potential new antimalarial drugs acting on both PvGGPPS and PfGGPPS. PMID- 29345111 TI - Association between hepatitis C infection in Thai patients with oral lichen planus: A case-control study. AB - AIM: The aim of the present study was to investigate the prevalence of hepatitis C virus (HCV) infection and evaluate liver enzyme levels in patients from upper northern Thailand with oral lichen planus (OLP). METHODS: A case-control study of 101 patients with OLP and 101 patients without OLP was conducted. Peripheral blood was taken from each patient and screened for anti-HCV antibody using immunochromatography. Positive samples were further confirmed using chemiluminescent microparticle immunoassay (CMIA) and reverse transcription polymerase chain reaction. In addition, liver enzyme levels, alanine transaminase, aspartate transaminase, and alkaline phosphatase were evaluated using spectrophotometry. RESULTS: Immunochromatography and CMIA revealed that nine patients with OLP (8.9%) were positive for anti-HCV antibodies, whereas only one patient without OLP was HCV positive (odds ratio = 9.78). All patients who were HCV positive had significantly higher liver enzyme levels than patients who were HCV negative. CONCLUSIONS: The results of the present study indicated that OLP in certain patients was significantly associated with HCV. This could warrant screening for HCV-infected patients with OLP in Thailand. PMID- 29345112 TI - Low NT-proBNP levels in overweight and obese patients do not rule out a diagnosis of heart failure with preserved ejection fraction. AB - BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is a heterogeneous syndrome that presents clinicians with a diagnostic challenge. The use of natriuretic peptides to exclude a diagnosis of HFpEF has been proposed. We sought to compare HFpEF patients with N-terminal pro-brain natriuretic peptide (NT-proBNP) level above and below the proposed cut-off. METHODS: Stable patients (n = 30) with left ventricular (LV) ejection fraction >= 50% were eligible if they had a diagnosis of HF according to the European Society of Cardiology diagnostic criteria. Characteristics of patients with NT-proBNP below (<=125 pg/mL) and above (>125 pg/mL) the diagnostic criterion were compared. RESULTS: There were 19 (66%) women with median age 54 years. Half were African American (16, 53%), and most were obese. There were no significant differences in clinical characteristics or medication use between groups. LV end-diastolic volume index was greater in high NT-proBNP patients (P = 0.03). Left atrial volume index, E/e' ratio, and E/e' ratio at peak exercise were not significantly different between NT-proBNP groups. Peak oxygen consumption (VO2 ), VO2 at ventilatory threshold, and ventilatory efficiency measures were impaired in all patients and were not significantly different between high and low NT-proBNP patients. CONCLUSIONS: NT proBNP was below the proposed diagnostic cut-off point of 125 pg/mL in half of this obese study cohort. Cardiac diastolic dysfunction and cardiorespiratory fitness were not significantly different between high and low NT-proBNP patients. These data indicate that excluding the diagnosis of HFpEF based solely on NT proBNP levels should be discouraged. PMID- 29345113 TI - Intervention for childhood obesity based on parents only or parents and child compared with follow-up alone. AB - OBJECTIVES: The study aims to assess the effects of family-based interventions targeted to parents only or to parents-and-child for the prevention and treatment of childhood obesity. METHOD: An open-label randomized study was conducted in 247 children (166 girls, 5-11 years) with body mass index (BMI) in the 85-98th percentile. Participants were allocated to three groups: parents-only (n = 89), parents-and-child (n = 84) and follow-up alone (n = 74). The intervention consisted of 12 once-weekly meetings with a dietician and psychologist. All children were followed for 2 years. Changes in anthropometric, clinical and lifestyle outcomes were assessed. RESULTS: The 3-month intervention was completed by 58 (65.2%) in the parents-only, 61 (72.6%) in the parents-child and 49 (66.2%) in the control group (P = .554). BMI-standard deviation score (SDS) decreased from baseline to 3 months in both intervention groups (parents-only: from 1.74 +/ 0.31 to 1.66 +/- 0.36, P < .001; parents-child, 1.83 +/- 0.33 to 1.76 +/- 0.36, P = .012), with no significant change in the controls (1.73 +/- 0.32 to 1.70 +/- 0.31, P = .301). The 2-year follow-up was completed by 45 in each of the intervention groups (50.5% and 53.5%, respectively) and 37 controls (50%) (P = .896). Compared with baseline, only the parents-child group showed a significant decrease in BMI-SDS (1.56 +/- 0.46, P = .006). The rate of children who met the criteria for metabolic syndrome tended to drop from 6.0% at baseline (14/232) to 1.5% at 3 months (12/137) (P = .109), with no significant between-group differences in the rate of metabolic syndrome at baseline or at completion of the intervention. CONCLUSIONS: An intervention programme that focuses on both parents and children was found to have positive short-term and long-term effects on BMI SDS. PMID- 29345114 TI - Introduction to the special issue on myelin plasticity in the central nervous system. PMID- 29345115 TI - Metatranscriptome analysis reveals environmental and diel regulation of a Heterosigma akashiwo (raphidophyceae) bloom. AB - Despite numerous laboratory studies on physiologies of harmful algal bloom (HAB) species, physiologies of these algae during a natural bloom are understudied. Here, we investigated a bloom of the raphidophyte Heterosigma akashiwo in the East China Sea in 2014 using metabarcode (18S rDNA) and metatranscriptome sequencing. Based on 18S rDNA analyses, the phytoplankton community shifted from high diversity in the pre-bloom stage to H. akashiwo predominance during the bloom. A sharp decrease in ambient dissolved inorganic phosphate and strong up regulation of phosphate and dissolved organic phosphorus (DOP) uptake genes, including the rarely documented (ppGpp)ase, in H. akashiwo from pre-bloom to bloom was indicative of rapid phosphorus uptake and efficient utilization of DOP that might be a driver of the H. akashiwo bloom. Furthermore, observed up regulated expression of mixotrophy-related genes suggests potential contribution of mixotrophy to the bloom. Accelerating photosynthetic carbon fixation was also implied by the up-regulation of carbonic anhydrase genes during the bloom. Notably, we also observed a strong morning-to-afternoon shift in the expression of many genes. Our findings provide insights into metabolic processes likely important for H. akashiwo bloom formation, and suggest the need to consider timing of sampling in field studies on this alga. PMID- 29345116 TI - Notch1 gain of function in skeletal muscles leads to neuromuscular junction formation defects and neonatal death. PMID- 29345119 TI - Beyond the headlines - JEADV editor's pick of the year 2017. PMID- 29345120 TI - Fragrance contact allergy. PMID- 29345117 TI - Candida auris: A systematic review and meta-analysis of current updates on an emerging multidrug-resistant pathogen. AB - From 2009, Candida auris has emerged as a multidrug-resistant ascomycete yeast pathogen with the capacity for easy transmission between patients and hospitals, as well as persistence on environmental surfaces. Its association with high mortalities, breakthrough and persistent candidaemia, inconsistencies in susceptibility testing results, misidentification by available commercial identification systems and treatment failure, complicates its management and detection. Within the last nine years, C. auris has been increasingly reported from far-Eastern Asia, the Middle East, Africa, Europe, South and North America with substantial fatalities and misidentification. Herein, I provide a systematic and thorough review of this emerging pathogen. Meta-analysis showed that at least 742 C. auris isolates have been reported in 16 countries, with most of these being from India (>=243), USA (>=232) and UK (>=103) (p-value = .0355) within 2013-2017. Most isolates were from males (64.76%) (p-value = .0329) and blood (67.48%) (p-value < .0001), with substantial crude mortality (29.75%) (p-value = .0488). Affected patients presented with other comorbidities: diabetes (>=52), sepsis (>=48), lung diseases (>=39), kidney diseases (>=32) etc. (p-value < .0001). Resistance to fluconazole (44.29%), amphotericin B (15.46%), voriconazole (12.67%), caspofungin (3.48%) etc. were common (p-value = .0059). Commonly used diagnostic tools included PCR (30.38%), Bruker MALDI-TOF MS (14.00%), Vitek 2 YST ID (11.93%), AFLP (11.55%) and WGS (10.04%) (p-value = .002). Multidrug resistance, high attributable mortality and persistence are associated with C. auris infections. Two novel drugs, SCY-078 and VT-1598, are currently in the pipeline. Contact precautions, strict infection control, periodic surveillance and cleaning with chlorine-based detergents, efficient, faster and cheaper detection tools are necessary for prevention, containment and early diagnosis of C. auris infections. PMID- 29345122 TI - Ten years of Journal of Biophotonics. PMID- 29345121 TI - Suspected hypersensitivity to cervicovaginal fluid - what can we learn from the seminal plasma allergy story? PMID- 29345123 TI - The effects of lifestyle changes on serum lipid levels in children in a real life setting. AB - OBJECTIVE: Studies have shown improvement in lipid levels after institution of lifestyle changes in children enrolled in closely monitored programs. There programs are difficult to mimic in real world clinics. We aim to determine if diet and exercise result in improvement in lipid levels in patients seen in a designated lipid clinic in a real life setting. DESIGN: Retrospective review of patients followed for dyslipidemia at the Texas Children's Hospital Lipid Clinic from May 1, 2012 to May 1, 2015. Patients included were seen more than once, had repeat lipid testing, and abnormal baseline lipid levels. Multivariate analysis using mixed models were performed to compare outcomes in patients who did and did not participate in lifestyle change. RESULTS: Of the 268 patients seen within the study period, 174 (56% male, 44% female) met inclusion criteria. Median age was 11 years. Compared to patients who did not make lifestyle changes: patients who made only diet changes demonstrated significant improvement in weight only (slope = -1.55, P-value = .014), and those who made only exercise changes demonstrated significant improvements in serum cholesterol (slope = -22.8, P-value = .017) and non-HDL cholesterol (slope = -28.7, P-value = < .01) levels. Patients who participated in both diet and exercise demonstrated significant improvement in weight (slope = -1.13, P-value = .011), diastolic blood pressure (slope = -1.82, P-value = < .01), and serum lipid levels: LDL (slope = -10.8, P-value = 0.017), HDL (slope = 1.52, P-value = .24), Triglycerides (slope = -0.11, P-value = .033) compared to those who did not make lifestyle changes. CONCLUSIONS: Outpatient management of dyslipidemia is difficult. Only patients who participated in both diet and exercise showed significant improvement in outcomes when compared to those who did not make lifestyle changes. PMID- 29345124 TI - Disposable Morpho menelaus Based Flexible Microfluidic and Electronic Sensor for the Diagnosis of Neurodegenerative Disease. AB - Rapid early disease prevention or precise diagnosis is almost impossible in low resource settings. Natural ordered structures in nature have great potential for the development of ultrasensitive biosensors. Here, motivated by the unique structures and extraordinary functionalities of ordered structures in nature, a biosensor based on butterfly wings is presented. In this study, a flexible Morpho menelaus (M. menelaus) based wearable sensor is integrated with a microfluidic system and electronic networks to facilitate the diagnosis of neurodegenerative disease (ND). In the microfluidic section, the structural characteristics of the M. menelaus wings up layer are combined with SiO2 nanoparticles to form a heterostructure. The fluorescent enhancement property of the heterostructure is used to increase the fluorescent intensity for multiplex detection of two proteins: IgG and AD7c-NTP. For the electronic section, conductive ink is blade coated on the under layer of wings for measuring resistance change rate to obtain the frequency of static tremors of ND patients. The disposable M. menelaus based flexible microfluidic and electronic sensor enables biochemical-physiological hybrid monitoring of ND. The sensor is also amenable to a variety of applications, such as comprehensive personal healthcare and human-machine interaction. PMID- 29345125 TI - Naturally acquired bovine besnoitiosis: Disease frequency, risk and outcome in an endemically infected beef herd. AB - The recent spread of bovine besnoitiosis warrants further epidemiological investigations to improve the knowledge on disease development. Thus, a 4-year longitudinal open cohort study was conducted in the first German cattle herd naturally infected with Besnoitia besnoiti. At seven herd-visits between 2008 and 2012, fourteen breeding bulls (>1.5 years) and 131 females (>1 year) were examined clinically and serologically. In females, clinical and serological prevalences, incidence and remission rates were determined. In addition, the association of age, antibody levels and number of visible parasitic cysts with clinical and serological outcome was investigated. The seroprevalence (89.4% 100%) and serological incidence rate (140.5 per 100 animal-years) were considerably higher than the clinical prevalence (23.5%-36.6%) and clinical incidence rate (16.7 per 100 animal-years). Of 33 new clinical and 12 new serological cases, only 6.7% (3/45) attracted attention with clinical signs of acute bovine besnoitiosis. The apparent serological remission rate (1.9 per 100 animal-years) was considerably lower than the clinical remission rate (37.3 per 100 animal-years). A median cyst score of <1 and mean immunofluorescent antibody test (IFAT) titre of <=1,600 over the entire observation period was significantly associated with a negative clinical outcome at the end. Overall cyst score was not significantly associated with serological outcome and age had no significant influence on clinical and serological outcome. Within 4 years, there was a significant reduction in cyst scores and IFAT titres in the same animals, leading to eight clinically and serologically negative animals in the end. Two initially negative animals achieved clinical and apparent serological remission in about 2.5 years. In bulls, the time between herd entry and seroconversion was 7-30 months and the serological incidence rate was nearly identical to the rate in females (142.0 per 100 animal-years). This shows that a high B. besnoiti prevalence leads to infection of bulls within a short time period. PMID- 29345126 TI - Enantioselective Synthesis of Boryl Tetrahydroquinolines via Cu-Catalyzed Hydroboration. AB - A Cu-catalyzed regio- and enantioselective hydroboration of 1,2-dihydroquinolines with high yields and excellent enantioselectivities (up to 98% ee) was presented. This method could be applied in the asymmetric synthesis of the important intermediates used in the enantioselective synthesis of the potential agent Sumanirole for the treatment of Parkinson's disease and of the potentially interesting positive inotropic agent (S)-903. PMID- 29345127 TI - Monochlorinated to Octachlorinated Polychlorinated Dibenzo-p-dioxin and Dibenzofuran Emissions in Sintering Fly Ash from Multiple-Field Electrostatic Precipitators. AB - Polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/F) emissions in fly ash from multiple-field electrostatic precipitators in different sized sintering plants were studied. The monochlorinated-trichlorinated and tetrachlorinated octachlorinated PCDD/F concentrations were higher for small plants (90 m2) than for medium (91-180 m2) and large (>180 m2) plants. The PCDD/F concentrations and less-chlorinated PCDD/F contributions to the total PCDD/F concentrations increased as the fly ash particle size decreased moving through the precipitator stages; the abundance of monochlorinated-trichlorinated PCDD/F congeners and homologues also increased. The ash particle size and surface area can be directly used to indicate monochlorinated-trichlorinated PCDD/Fs and toxic equivalents (TEQs). Previously ignored PCDD/F emissions in discarded fly ash were identified. Estimated total monochlorinated-trichlorinated PCDD/F and TEQ emissions in discarded fly ash were 155 and 1.979 kg TEQ, respectively, in 2003-2014, and the ratio between annual PCDD/F emissions in discarded fly ash and flue gases has gradually increased. Reductions in monochlorinated-trichlorinated PCDD/F emitted in flue gas and fly ash in 2003-2014 were 28 and 40 kg, respectively, because of the phasing out of small-scale plants. Reductions in TEQs emitted in flue gas and fly ash in 2003-2014 were 7476 and 180 g TEQ, respectively. PMID- 29345128 TI - Synthesis of alpha-Formylated N-Heterocycles and Their 1,1-Diacetates from Inactivated Cyclic Amines Involving an Oxidative Ring Contraction. AB - A novel synthesis of pyrrolidine-2-carbaldehydes or tetrahydropyridine-2 carbaldehydes from the cascade reactions of N-arylpiperidines or N-arylazepanes is presented. Mechanistically, the formation of the title compounds involves an unprecedented oxidative ring contraction of inactivated cyclic amines via Cu(OAc)2/KI/O2-promoted oxidative cleavage and reformation of the C-N bond. Interestingly, when PhI(OAc)2 was used in place of KI, 1,1-diacetates of the corresponding aldehydes were directly obtained with good efficiency. To the best of our knowledge, this is the first example of regioselective C(sp3)-H bond functionalization and C(sp3)-N bond activation of saturated cyclic amines using copper salt and oxygen. PMID- 29345129 TI - Displacement of Dinitrogen by Oxygen: A Methodology for the Catalytic Conversion of Diazocarbonyl Compounds to Ketocarbonyl Compounds by 2,6-Dichloropyridine-N oxide. AB - Dirhodium(II) catalyzed dinitrogen extrusion from diazocarbonyl compounds by 2,6 dichloropyridine-N-oxide forms ketocarbonyl compounds in near-quantitative yields. Reactions occur at room temperature, and the pyridine product does not coordinate with dirhodium(II) to inhibit catalysis. Anhydrous tricarbonyl compounds, as well as dicarbonyl compounds, are conveniently prepared by this methodology, and they have been used in situ for catalytic ene and aldol transformations. PMID- 29345130 TI - Two Marine Cyanobacterial Aplysiatoxin Polyketides, Neo-debromoaplysiatoxin A and B, with K+ Channel Inhibition Activity. AB - The isolation and structure elucidation of two cyanobacterial debromoaplysiatoxin (DAT) analogues, neo-debromoaplysiatoxin A (1) and neo-debromoaplysiatoxin B (2), were reported and found to possess 6/10/6 and 6/6/6 fused-ring systems, respectively, which are rarely seen among aplysiatoxins. Both compounds exhibited potent blocking activity against Kv1.5 with IC50 values of 6.94 +/- 0.26 and 0.30 +/- 0.05 MUM, respectively. These findings suggest the potential of aplysiatoxin analogues in modulating ionic channels and also provide links between the DAT target, protein kinase C, and cell regulation. PMID- 29345131 TI - Photolithography-Based Nanopatterning Using Re-entrant Photoresist Profile. AB - Photolithography based on optical mask is widely used in academic research laboratories due to its low cost, simple mechanism, and ability to pattern in micron-sized features on a wafer-scale area. Because the resolution is bound by diffraction limits of the light source, nanoscale patterning using photolithography requires short-wavelength light source combined with sophisticated optical elements, adding complexity and cost. In this paper, a novel method of subwavelength patterning process using conventional i-line mercury lamp is introduced, without the use of such advanced optical tools. The method utilizes the re-entrant geometry of image reversal photoresist produced from the developing process, where a secondary mask is generated by isotropically depositing a metal layer to cover the re-entrant profile of the photoresist. Removing the photoresist by applying ultrasonic vibrations in acetone bath uniformly cracks the metal layer at the sidewalls of the re-entrant profile, exposing the substrate with a reduced feature size. The width of the initial mask pattern can be reduced by 400 nm in a controlled manner, regardless of the original width choice. As a result, the method is shown to achieve sub-100 nm scale linear patterns compatible for both subsequent deposition process and dry etching process. Our approach is applicable to various shapes of the patterns and can be used in electronic device fabrication requiring nanoscale lithography patterning, such as the gate fabrication of AlGaN/GaN high-electron-mobility transistor. PMID- 29345132 TI - Rh(III)-Catalyzed Acceptorless Dehydrogenative Coupling of (Hetero)arenes with 2 Carboxyl Allylic Alcohols. AB - Rhodium(III)-catalyzed C-H activation of (hetero)arenes and redox-neutral coupling with 2-carboxyl allylic alcohols has been realized for the construction of beta-aryl ketones. This reaction occurred efficiently at a relatively low catalyst loading via initial dehydrogenative alkylation to give a beta-keto carboxylic acid, followed by decarboxylation. PMID- 29345133 TI - Stable Organic Radicals as Hole Injection Dopants for Efficient Optoelectronics. AB - Precursors of reactive organic radicals have been widely used as n-dopants in electron-transporting materials to improve electron conductivity and enhance electron injection. However, the utilization of organic radicals in hole counterparts has been ignored. In this work, stable organic radicals have been proved for the first time to be efficient dopants to enhance hole injection. From the absorbance spectra and the ultraviolet photoelectron spectra, we could observe an efficient electron transfer between the organic radical, (4-N carbazolyl-2,6-dichlorophenyl)bis(2,4,6-trichlorophenyl)methyl (TTM-1Cz), and the widely used hole injection material, 1,4,5,8,9,11-hexaazatriphenylene hexacarbonitrile (HAT-CN). When the unpaired electron of TTM-1Cz is transferred to HAT-CN, it would be oxidized to a TTM-1Cz cation with a newly formed lowest unoccupied molecular orbital which is quite close to the highest occupied molecular orbital (HOMO) of the hole-transporting material (HTM). In this way, the TTM-1Cz cation would promote the electron extraction from the HOMO of the HTM and improve hole injection. Using TTM-1Cz-doped HAT-CN as the hole injection layer, efficient organic light-emitting diodes with extremely low voltages can be attained. PMID- 29345134 TI - Nanoscale Imaging of Primary Cilia with Scanning Ion Conductance Microscopy. AB - Primary cilia are hair-like sensory organelles whose dimensions and location vary with cell type and culture condition. Herein, we employed scanning ion conductance microscopy (SICM) to visualize the topography of primary cilia from different cell types. By combining SICM with fluorescence imaging, we successfully distinguished between surface cilia that project outward from the cell surface and subsurface cilia that are trapped below it. The nanoscale structure of the ciliary pocket, which cannot be easily identified using a confocal fluorescence microscope, was observed in SICM images. Furthermore, we developed a topographic reconstruction method using current-distance profiles to evaluate the relationship between set point and topographic image and found that a low set point is important for detecting the true topography of a primary cilium using hopping mode SICM. PMID- 29345135 TI - The Deposition and Elimination of Glucosinolate Metabolites Derived from Rapeseed Meal in Eggs of Laying Hens. AB - This study was to investigate the deposition and elimination of glucosinolate metabolites including 5-vinyl-1,3-oxazolidine-2-thione (5-VOT) and thiocyanate ion (SCN-) derived from rapeseed meal (RSM) in hen eggs. During 12 weeks accumulation phase, the serum triiodothyronine, thyronine, blood urea nitrogen, kidney index, and thyroid index linearly increased with the RSM at week 12 (P < 0.05). The thyroid histopathology revealed a sign of hyperplastic goiter in hens fed with 17.64-29.40% RSM. The 5-VOT content of eggs (Y, ng/g) was correlated with 5-VOT intake (X2, MUg/d.bird) and 5-VOT feeding time (X1, week): Y = 54.94X1 + 0.51X2 - 430.34 (P < 0.01, R2 = 0.80). The SCN- content of eggs (Y, mg/kg) was correlated with RSM intake (X2, MUg/d.bird) and RSM feeding time (X1, week): Y = 0.095X1 + 0.302X2 - 0.4211 (P < 0.01, R2 = 0.70). After a 4-week withdrawal of RSM, the 5-VOT and SCN- did not show in eggs. Taken together, 5.88% RSM with dietary supplements of 23.55 mg/kg 5-VOT and 10.76 mg/kg SCN- had no effects on hens with regard to serum parameters, organ index, and thyroid histopathology, and more than 4 weeks withdrawal should be considered for human and hen health. PMID- 29345136 TI - Regioselective Reaction of Heterocyclic N-Oxides, an Acyl Chloride, and Cyclic Thioethers. AB - Treatment of electron deficient pyridine N-oxides with 4-nitrobenzoyl chloride and a cyclic thioether in the presence of triethylamine leads to the corresponding 2-functionalized product in up to a 74% isolated yield. The transformation can also be accomplished with alternative nitrogen containing heterocycles, including quinolines, pyrimidines, and pyrazines. To expand the scope of the transformation, diisopropyl ether can be used as the reaction medium to allow for the use of solid thioether substrates. PMID- 29345137 TI - Formal Insertion of Thioketenes into Donor-Acceptor Cyclopropanes by Lewis Acid Catalysis. AB - Donor-acceptor cyclopropanes were reacted under Lewis acid catalysis with 3 thioxocyclobutanones as surrogates for disubstituted thioketenes. A broad scope of 2-substituted tetrahydrothiophenes with a semicyclic double bond was obtained under mild conditions with high functional group tolerance and in excellent yield. A sequence of a formal [3 + 2]-cycloaddition followed by the subsequent release of disubstituted ketene is postulated as the mechanism. PMID- 29345138 TI - A Four-Step Synthesis of (+/-)-gamma-Lycorane via Pd0-Catalyzed Double C(sp2) H/C(sp3)-H Arylation. AB - An expedient synthesis of lycorine alkaloids is reported using a palladium(0) catalyzed double C-X/C-H arylation as the key step. The selectivity of this reaction was controlled through the judicious choice of the two halogen atoms, and its generality was demonstrated through the construction of various substituted pyrrolophenanthridinones. A selective arene hydrogenation allowed for the completion of the synthesis of (+/-)-gamma-lycorane in just four steps from commercially available precursors. PMID- 29345139 TI - Catalytically Enantioselective Synthesis of Acyclic alpha-Tertiary Amines through Desymmetrization of 2-Substituted 2-Nitro-1,3-diols. AB - Highly enantioselective synthesis of acyclic alpha-tertiary amines through asymmetric desymmetrization is reported. This approach is based on chiral phosphoric acid mediated, enantioselective, oxidative desymmetrization of 2 substituted 2-nitro-1,3-diolbenzylidine acetals in the presence of DMDO as an oxidant. The method allows for the formation of a wide variety of chiral 2-nitro 1,3-diols in high enantioselectivity, which could be transformed into optically pure, unnatural alpha-alkyl series. The synthetic utility of this method has been further demonstrated by the expedient construction of the core structure of natural products manzacidins enantioselectively. PMID- 29345140 TI - High-Efficiency and Stable Organic Solar Cells Enabled by Dual Cathode Buffer Layers. AB - Various cathode interface materials have been used in organic solar cells (OSCs) to realize high performance. However, most cathode interface materials have their respective weaknesses in maximizing the efficiency or stability of OSCs. Herein, three kinds of alcohol-soluble cathode interfacial materials are combined with bathocuproine (BCP) to serve as multifunctional bilayer cathode buffers for the regular OSCs, and thus greatly enhanced power conversion efficiencies over 10.11% and significantly improved device stability have been achieved. By utilizing double interlayers, both light absorption and light distribution in active layer are improved. Furthermore, double interlayers offer favorable energy-level alignment, alcohol treatment, and duplicate protection of active layer, resulting in significantly reduced leakage current, suppressed recombination, and efficient charge collection. The improved device stability is related to the blocking effect of the complex formed between BCP and the metal electrode and the additional protection effect of the underlying alcohol-soluble materials. In view of the universal use of alcohol-soluble organic electrolyte as cathode buffer layers and by courtesy of the superiority of the double cathode layers relative to the monolayer controls, the double interlayer strategy demonstrated here opens a new way to fully exploiting the potential of OSCs and is believed to be extended to a wider application. PMID- 29345142 TI - Mediating Role of Career Coaching on Job-Search Behavior of Older Generations. AB - This study focuses on career development processes and options for older workers in South Korea and explores how career coaching enhances their career development efforts and transition needs. The purpose of this study is to investigate the structural relationship between older employees' goal-setting, self-efficacy, and job-search behavior mediated by career coaching. A total of 249 participants were recruited in a metropolitan city in South Korea. Based on the literature review, hypotheses were developed and tested on the structural model and the following findings were revealed. First, the findings indicate a positive effect of self efficacy on older workers' job-search behavior. Second, the value of career coaching was found to affect older workers' job-search behavior in the South Korean context. Third, career-goal commitment alone did not have a positive significant effect on job-search behavior, but it was influential through the mediating process of the perceived quality of the career coaching program provided by an employment center in South Korea. PMID- 29345141 TI - Creating Hierarchical Pores by Controlled Linker Thermolysis in Multivariate Metal-Organic Frameworks. AB - Sufficient pore size, appropriate stability, and hierarchical porosity are three prerequisites for open frameworks designed for drug delivery, enzyme immobilization, and catalysis involving large molecules. Herein, we report a powerful and general strategy, linker thermolysis, to construct ultrastable hierarchically porous metal-organic frameworks (HP-MOFs) with tunable pore size distribution. Linker instability, usually an undesirable trait of MOFs, was exploited to create mesopores by generating crystal defects throughout a microporous MOF crystal via thermolysis. The crystallinity and stability of HP MOFs remain after thermolabile linkers are selectively removed from multivariate metal-organic frameworks (MTV-MOFs) through a decarboxylation process. A domain based linker spatial distribution was found to be critical for creating hierarchical pores inside MTV-MOFs. Furthermore, linker thermolysis promotes the formation of ultrasmall metal oxide nanoparticles immobilized in an open framework that exhibits high catalytic activity for Lewis acid-catalyzed reactions. Most importantly, this work provides fresh insights into the connection between linker apportionment and vacancy distribution, which may shed light on probing the disordered linker apportionment in multivariate systems, a long-standing challenge in the study of MTV-MOFs. PMID- 29345143 TI - Readability of Online Health Information: A Meta-Narrative Systematic Review. AB - Online health information should meet the reading level for the general public (set at sixth-grade level). Readability is a key requirement for information to be helpful and improve quality of care. The authors conducted a systematic review to evaluate the readability of online health information in the United States and Canada. Out of 3743 references, the authors included 157 cross-sectional studies evaluating 7891 websites using 13 readability scales. The mean readability grade level across websites ranged from grade 10 to 15 based on the different scales. Stratification by specialty, health condition, and type of organization producing information revealed the same findings. In conclusion, online health information in the United States and Canada has a readability level that is inappropriate for general public use. Poor readability can lead to misinformation and may have a detrimental effect on health. Efforts are needed to improve readability and the content of online health information. PMID- 29345144 TI - Pilot Randomized Controlled Trial of the GO Game Intervention on Cognitive Function. AB - This study investigated the effects of an intervention using the game "GO" on cognitive function in nursing home residents and evaluated the acquisition of GO according to each stage of dementia. Participants were randomly assigned to either the GO intervention group or a control group, and the intervention was performed once weekly for 15 weeks. Cognitive tests were conducted before and after intervention, and 17 participants were included in the final analysis. Analysis of covariance demonstrated that in the intervention group, the digit span total score significantly improved and the digit span backward score was maintained, whereas these scores decreased in the control group. All participants, including those who had moderate dementia, acquired the rules of the game, and participants with mild cognitive impairment and mild dementia could play the game successfully. This study indicates that GO might improve the cognitive function of residents living in nursing homes. PMID- 29345145 TI - Process improvement methodologies uncover unexpected gaps in stroke care. AB - Background The diagnosis and treatment of acute stroke requires timed and coordinated effort across multiple clinical teams. Purpose To analyze the frequency and temporal distribution of emergent stroke evaluations (ESEs) to identify potential contributory workflow factors that may delay the initiation and subsequent evaluation of emergency department stroke patients. Material and Methods A total of 719 sentinel ESEs with concurrent neuroimaging were identified over a 22-month retrospective time period. Frequency data were tabulated and odds ratios calculated. Results Of all ESEs, 5% occur between 01:00 and 07:00. ESEs were most frequent during the late morning and early afternoon hours (10:00 14:00). Unexpectedly, there was a statistically significant decline in the frequency of ESEs that occur at the 14:00 time point. Conclusion Temporal analysis of ESEs in the emergency department allowed us to identify an unexpected decrease in ESEs and through process improvement methodologies (Lean and Six Sigma) and identify potential workflow elements contributing to this observation. PMID- 29345146 TI - Quantitative contrast-enhanced ultrasound for monitoring vedolizumab therapy in inflammatory bowel disease patients: a pilot study. AB - Background Microvascularization of the bowel wall can be visualized and quantified non-invasively by software-assisted analysis of derived time-intensity curves. Purpose To perform software-based quantification of bowel wall perfusion using quantitative contrast-enhanced ultrasound (CEUS) according to clinical response in patients with inflammatory bowel disease treated with vedolizumab. Material and Methods In a prospective study, in 18 out of 34 patients, high frequency ultrasound of bowel wall thickness using color Doppler flow combined with CEUS was performed at baseline and after 14 weeks of treatment with vedolizumab. Clinical activity scores at week 14 were used to differentiate between responders and non-responders. CEUS parameters were calculated by software analysis of the video loops. Results Nine of 18 patients (11 with Crohn's disease and seven with ulcerative colitis) showed response to treatment with vedolizumab. Overall, the responder group showed a significant decrease in the semi-quantitative color Doppler vascularization score. Amplitude-derived CEUS parameters of mural microvascularization such as peak enhancement or wash-in rate decreased in responders, in contrast with non-responders. Time-derived parameters remained stable or increased during treatment in all patients. Conclusion Analysis of bowel microvascularization by CEUS shows statistically significant changes in the wash-in-rate related to response of vedolizumab therapy. PMID- 29345148 TI - ERRATUM. PMID- 29345147 TI - The Complexities of Family Caregiving at Work: A Mixed-Methods Study. AB - The current project examined the impact of caregiving and caregiving-work conflict on employees' well-being. A sequential explanatory mixed-methods design (QUAN->qual) was utilized, and a total of 880 employees from a large health-care plan employer completed an online survey. Forty-five caregivers who completed the survey also participated in one of the five focus groups held 1 to 2 months later. Employed caregivers were significantly ( p < .05) more likely to indicate poorer physical and mental health than noncaregivers; among caregivers ( n = 370), caregiving-work conflict emerged as the most significant predictor of well being and fully mediated the empirical relationship between burden and well being. The focus group findings complemented the quantitative results; many of the challenges employed caregivers experience stem from their ability or inability to effectively balance their employment and caregiving roles. The results suggest the need to focus on caregiving-work conflict when constructing new or translating existing evidence-based caregiver interventions. PMID- 29345149 TI - Medical management of brain metastases and leptomeningeal disease in patients with breast carcinoma. AB - Breast cancer is the most common malignancy among women and accounts for the second highest number of cancer-related deaths. With patients surviving longer due to advances in systemic control, the incidence of CNS involvement is increasing; however, the management of CNS metastases has not undergone parallel advancements. The blood-brain barrier limits the efficacy of most systemic chemotherapies, and the utilization of surgery and radiation beyond first-line therapy is limited. We will explore the recent developments in the medical management of breast cancer brain metastasis. Beyond traditional chemotherapy, we will also discuss targeted therapies and immunotherapies which may provide a survival benefit to this population and thus, offer further treatment options and a path for future research and treatment advances. PMID- 29345150 TI - An Initial Assessment of the Utility of Validated Alcohol and Drug Screening Tools in Predicting 30-Day Readmission to Adult General Medicine Wards. AB - Previous studies have identified drug and alcohol use as risk factors for readmission using claims data, but not by using substance use screening scores. This preliminary study tested the hypothesis that prevalence of 30-day readmission would be higher among patients screening positive on the 10-item Alcohol Use Disorders Identification Test (AUDIT-10) or the 10-item Drug Abuse Screening Test (DAST-10) tools at intake than among the general patient population. Social workers screened 4708 adult inpatients using prescreening questions followed by the AUDIT-10 and/or DAST-10. Patients with positive screens were followed for readmissions within 30 days of discharge. A positive screening score on the AUDIT-10 or DAST-10 instrument at intake was associated with higher risk of readmission to the general medicine wards within 30 days; this relationship appears complex and subject to mediation. Post hoc chart review found that the majority of readmissions among patients with positive screens were not immediately attributable to substance use. Further study is needed to verify these preliminary findings. PMID- 29345151 TI - Emerging technologies for biotherapeutic bioanalysis from a high-throughput and multiplexing perspective: insights from an AAPS emerging technology action program committee. AB - This manuscript aims to provide insights and updates on emerging technologies from a throughput and multiplexing perspective and to update readers on changes in previously reported technologies. The technologies discussed range from nascent (ultrasensitive Cira, Intellicyt(r), Dynaxi and CaptsureTM) to the more established (Ella and SQIDliteTM). For the nascent technologies, there was an emphasis on user interviews and reviews, where available, to help provide an unbiased view to our readers. For the Ella, a review of published user data as well as author and other user experiences are summarized. Due to their emergent nature, all the technologies described are applicable in the early drug development stage, may require an upfront investment of capital and may not perform as expected. PMID- 29345152 TI - Changes in radiotherapy fractionation-breast cancer. AB - Conventional fractionation for half a century has been justified on the basis that 2.0 Gy fractions spare dose-limiting late-responding normal tissues to a greater degree than cancerous tissues. Early indications that breast cancer responds more strongly to fraction size than many other common cancers were followed several decades of investigation, but there is now reliable Level I evidence that this is the case. Four randomised trials testing fraction sizes in the range 2.7-3.3 Gy have reported 10-year follow up in almost 8000 patients, and they provide robust estimates of alpha/beta in the range of 3 Gy. The implication is that there are no advantages in terms of safety or effectiveness of persisting with 2.0 Gy fractions in patients with breast cancer. 15- or 16-fraction schedules are replacing the conventional 25-fraction regimen as a standard of care for adjuvant therapy in an increasing number of countries. A number of concerns relating to the appropriateness of hypofractionation in patient subgroups, including those treated post-mastectomy, advanced local-regional disease and/or to lymphatic pathways are addressed. Meanwhile, hypofractionation can be exploited to modulate dose intensity across the breast according to relapse risk by varying fraction size across the treatment volume. The lower limits of hypofractionation are currently being explored, one approach testing a 5-fraction schedule of local-regional radiotherapy delivered in 1 week. PMID- 29345153 TI - Selective serotonin reuptake inhibitor use in pregnant women; pharmacogenetics, drug-drug interactions and adverse effects. AB - INTRODUCTION: Possible negative effects of selective serotonin reuptake inhibitors (SSRIs) in pregnancy relate to congenital anomalies, negative perinatal events and neurodevelopmental outcome. Many studies are confounded by the underlying maternal disease and by pharmacogenetic and pharmacokinetic differences of these drugs. Areas covered: The possible interactions of SSRIs and serotonin and norepinephrine reuptake inhibitors with other drugs and the known effects of SSRIs on congenital anomalies, perinatal and neurodevelopmental outcome. Expert opinion: SSRIs should be given with caution when combined with other drugs that are metabolized by cytochrome P450 enzymes. SSRIs apparently increase the rate of severe cardiac malformations, induce neonatal adaptation problems in up to 30% of the offspring, increase the rate of persistent pulmonary hypertension of the newborn and possibly slightly increase the rate of prematurity and low birth weight. Most neurodevelopmental follow up studies did not find significant cognitive impairments except some transient gross motor delay, slight impairment of language abilities and possibly behavioral changes. The literature on the possible association of SSRIs with autism spectrum disorder is inconsistent; if an association exists, it is apparently throughout pregnancy. The risk associated with treatment discontinuation seems to outweigh the risk of treatment, as severe maternal depression may negatively affect the child's development. If needed, treatment should continue in pregnancy with the minimal effective dose. PMID- 29345154 TI - Trends and repetition of non-fatal suicidal behaviour: analyses of the Gold Coast University Hospital's Emergency Department. AB - : Objective The aim of the current paper is to analyse time trends of non-fatal suicidal behaviour (NFSB) and its repetition at the Gold Coast in 2005-2015. Methods Data on presentations for NFSB were obtained from the Emergency Department (ED) Information System. Potential cases were identified through keyword searches, which were further scrutinised and coded. Annual person-based age-standardised rates for NFSB were calculated. Chi-square test, Poisson regression and Cox proportional hazards regression were used. RESULTS: There was a significant increase in the age-standardised rates of NFSB for males (incidence Rate Ratio = 1.05; 95% confidence interval (CI): 1.04-1.07) and females (iRR = 1.06; 95% CI: 1.04-1.07). Age-specific rates showed significant increases for all age groups, except 25-34 and 55+ for females. Different types of poisoning were the predominant method of NFSB (poisoning only - 61.7% of episodes), followed by cutting (23%). Within the first year after the index episode, 13.4% of subjects repeated NFSB. Multivariate Cox regression model showed that sex, age and method predicted repetition. CONCLUSION: The increasing trends of NFSB and relatively high repetition rates emphasise the need for preventative actions. Monitoring of NFSB at the ED level should be further extended in Australia. PMID- 29345155 TI - Minimally invasive adrenal surgery: virtue or vice? AB - Adrenocortical carcinoma (ACC) is a rare malignancy associated with poor prognosis despite available treatments. In patients with localized or locally advanced disease, complete resection with negative margins offers the only potential for cure. Unfortunately, most patients develop local and distant recurrence following initial resection highlighting the importance of meticulous surgical technique in the hands of an experienced surgeon. While minimally invasive surgery (MIS) has supplanted open surgery for small to medium-sized benign adrenal tumors, controversy surrounds the use of MIS for resection of ACC. We sought to provide an overview of the key oncological principles in the surgical management of ACC and to critically review the literature comparing outcomes between the open and MIS approaches. PMID- 29345156 TI - Pharmacokinetic drug evaluation of opicapone for the treatment of Parkinson's disease. AB - INTRODUCTION: Opicapone (OPC) is a novel, potent, reversible, and purely peripheral third-generation COMT inhibitor, which provides an enhancement in levodopa (L-Dopa) availability. It represents adjunctive therapy for L-Dopa treated patients with PD and motor fluctuations. Areas covered: The purpose of this study was to evaluate pharmacokinetic of OPC for the treatment of PD. Expert commentary: Oral OPC exhibits linear, dose-dependent absorption. However, following concomitant ingestion of a high-fat, high-calorie meal, the maximum plasma concentration will be decreased. A once-daily bedtime administration of OPC 1 h after the last daily L-Dopa/AADCi, are considered to avoid any interaction during the L-Dopa absorption phase. There are no clinically relevant effects of age (in adults), renal impairment or race on the pharmacokinetics of OPC. OPC dose adjustment is not needed in patients with mild to moderate chronic hepatic impairment. Opicapone exhibits the lowest potential for cytotoxicity in comparison with other COMT inhibitors. It significantly decreases COMT activity, with half-life of COMT inhibition in human erythrocytes of 61.6 h and increases systemic exposure to L-Dopa. This provides an enhancement in L-Dopa availability that translates into clinical benefit for PD patients in terms of significant decrease of OFF periods and increase in ON-time without troublesome dyskinesia. PMID- 29345157 TI - Evaluation of serum cysteine-rich protein 61 levels in patients with coronary artery disease. AB - AIM: The aim is to evaluate serum cysteine-rich protein 61 (Cyr61) levels in patients with coronary artery disease (CAD). PATIENTS & METHODS: Serum Cyr61 levels were measured in 180 patients with CAD and 74 participants without CAD. RESULTS: Serum Cyr61 levels were significantly higher in CAD patients. Patients with acute coronary syndrome showed significantly higher Cyr61 than those with stable angina pectoris. Serum Cyr61 levels in complex lesion group were significantly higher. Serum Cyr61 was positively correlated with Gensini score and C-reactive protein. Multivariable logistic regression analyses demonstrated that serum Cyr61 levels were independently correlated with the existence of CAD (p = 0.01). CONCLUSION: Our study suggested Cyr61 as a potential biomarker in characterizing CAD and therapeutic target for CAD. PMID- 29345158 TI - The impact of probiotics and n-3 long-chain polyunsaturated fatty acids on intestinal permeability in pregnancy: a randomised clinical trial. AB - A disruption in intestinal barrier integrity may predispose individuals to metabolic aberrations, particularly during the vulnerable period of pregnancy. We investigated whether intestinal permeability, as measured by serum zonulin concentration, changes over the duration of pregnancy and whether this change is reflected in lipopolysaccharide (LPS) activity. Second, we tested in a randomised double-blind placebo controlled clinical trial the impact of consuming dietary probiotics and/or long chain polyunsaturated fatty acid (LC-PUFA) supplements in lowering serum zonulin concentration and LPS activity. The probiotic supplement was a combination of two bacteria, Bifidobacterium animalis ssp. lactis 420 and Lactobacillus rhamnosus HN001. This study included 200 overweight pregnant women participating in an on-going study; participants were randomised to consume either (1) probiotics, (2) LC-PUFA, (3) probiotics and LC-PUFA, or (4) placebo for each supplement. Blood samples were obtained at early, the baseline, and late pregnancy (mean 14 and 35 weeks of gestation, respectively). Serum zonulin concentration increased from early (mean (standard deviation): 62.7 (12.9) ng/ml) to late pregnancy by 5.3 (95%CI 3.7-6.9) ng/ml, and LPS activity increased from (0.16 (0.04) EU/ml) by 0.04 (95%CI 0.03-0.05) EU/ml. No differences among the intervention groups were detected in the change from early to late pregnancy in serum zonulin concentration (P=0.8) or LPS activity (P=0.2). The change in serum zonulin concentration during the pregnancy was associated with the weeks of follow up (r=0.25, P<0.001). Serum LPS activity was correlated with higher maternal weight gain (r=0.19, P=0.008). As a conclusion, intestinal permeability increased with the progression of pregnancy in overweight and obese women and was reflected in LPS activity. No efficacy of supplementation with probiotics and/or LC-PUFA was demonstrated in pregnancy-induced changes in serum zonulin concentration or LPS activity. PMID- 29345159 TI - Weighing in on the risks and benefits of probiotic use in HIV-infected and immunocompromised populations. AB - Probiotics are used in the prophylaxis and treatment of several conditions, including irritable bowel syndrome, diarrhoea, necrotising enterocolitis (NEC) and colic in infants. Despite the long history of probiotic use in humans, there is still significant debate about their efficacy and safety, particularly in HIV infected and immunocompromised individuals. Here, we reviewed the safety and adverse event (AE) reporting from clinical trials that have tested probiotics in at risk populations, including HIV-infected individuals, the terminally ill and elderly, and neonates. Our analysis suggests that the benefits of probiotic therapy outweigh their potential risks in HIV-infected populations, and in the treatment of colic and NEC in low birth weight or premature neonates. Most case reports of severe AEs were in the elderly and terminally ill, or in those with additional severe medical conditions. We conclude that probiotic use, as adjunctive treatment, is effective and safe in the majority of patients including HIV-infected individuals, although special care should be taken in individuals with extreme immunosuppression and severe medical conditions in all ages. PMID- 29345160 TI - Inherited forms of bladder cancer: a review of Lynch syndrome and other inherited conditions. AB - Environmental factors that play a role in the urothelial carcinogenesis have been well characterized. Current research is continuously exploring potential heritable forms of bladder cancer. Lynch syndrome is a well-known inheritable disease that increases the risk for a variety of cancers, including urothelial carcinomas. Screening of patients with known Lynch syndrome is important to evaluate for development of new primary tumors. Further study may provide more information on what level of follow-up each patient needs. Recent data suggest that mismatch repair mutations confer a greater risk for urothelial cancer. Additional large patient series as well as advancement of molecular testing may provide triage for Lynch syndrome patients in regards to the frequency and type of screening best suited for individual patient. PMID- 29345161 TI - Caffeine Improves Triathlon Performance: A Field Study in Males and Females. AB - The ergogenic effect of caffeine on endurance exercise is commonly accepted. We aimed to elucidate realistically the effect of caffeine on triathlon event performance using a field study design, while allowing investigation into potential mechanisms at play. A double-blind, randomized, crossover field trial was conducted. Twenty-six triathletes (14 males and 12 females; mean +/- SD: age = 37.8 +/- 10.6 years, habitual caffeine intake = 413 +/- 505 mg/day, percentage body fat = 14.5 +/- 7.2%, and training/week = 12.8 +/- 4.5 hr) participated in this study. Microencapsulated caffeine (6 mg/kg body weight) was supplemented 60 min pretrial. Performance data included time to completion, rating of perceived exertion, and profile of mood states. Blood samples taken before, during, and postrace were analyzed for cortisol, testosterone, and full blood count. Capillary blood lactate concentrations were assessed prerace, during transitions, and 3, 6, 9, 12, and 15 min after triathlons. Caffeine supplementation resulted in a 3.7% reduction in swim time (33.5 +/- 7.0 vs. 34.8 +/- 8.1 min, p < .05) and a 1.3% reduction in time to completion (149.6 +/- 19.8 vs. 151.5 +/- 18.6 min, p < .05) for the whole group. Gender differences and individual responses are also presented. Caffeine did not alter the rating of perceived exertion significantly, but better performance after caffeine supplementation suggests a central effect resulting in greater overall exercise intensity at the same rating of perceived exertion. Caffeine supplementation was associated with higher postexercise cortisol levels (665 +/- 200 vs. 543 +/- 169 nmol/L, p < .0001) and facilitated greater peak blood lactate accumulation (analysis of variance main effect, p < .05). We recommend that triathlon athletes with relatively low habitual caffeine intake may ingest 6 mg/kg body weight caffeine, 45-60 min before the start of Olympic-distance triathlon to improve their performance. PMID- 29345162 TI - Genetic defect of a combined 17 alpha-hydroxylase/17,20-lyase deficiency patient with adrenal crisis. AB - Combined 17 alpha-hydroxylase/17,20-lyase deficiency (17OHD) is a rare autosomal recessive disease that is a type of congenital adrenal hyperplasia, which results in hypertension, hypokalemia, sexual infantilism, primary amenorrhea in females (46,XX), or pseudohermaphroditism in males (46,XY). It is mainly caused by mutation in the CYP17A1 gene, which encodes a key enzyme in the steroidogenic pathway. However, these patients rarely experience adrenal crisis, due to abnormally high corticosterone levels. Here, we report a 17OHD patient who experienced clinical adrenal crisis on day 1 after gonadectomy. Her (46,XY) genetic defect was c0.715 C > T p.Arg239-stop in exon 4 of CYP17A1, which was confirmed by targeted sequence capture/high-throughput sequencing and Sanger sequencing technology. To the best of our knowledge, 17OHD with adrenal crisis has not been reported previously, and the reason why it arose in this patient might have been inappropriate glucocorticoid administration during the perioperative period. PMID- 29345163 TI - Low dose HP-hMG in an antagonist protocol for IVF in ovulatory and anovulatory patients with high AMH. AB - Women with high-AMH levels have an increased risk of ovarian hyperstimulation syndrome (OHSS). Studies have suggested that highly purified menotropin (HP-hMG) Menopur(r) reduces the risk. We, therefore, studied use of low-dose (112.5 IU/day) HP-hMG in ovulatory and anovulatory patients with high AMH (>32 pmol/L). The primary endpoint was the distribution of patients with appropriate, excessive, and inadequate response (5-14, >=15, and <=4 oocytes). Another endpoint was frequency of OHSS. Totally 115 women were included and 78 (67.8%) had an appropriate, 8 (7.0%) an excessive, and 29 (25.2%) an inadequate response. The number of oocytes was independent on AMH levels and ovulatory status but declined significantly with increasing bodyweight (R2 = 0.07, p < .01). The ongoing pregnancy rate per started cycle was 47.0%. Three (2.6%) developed OHSS, two had cancelation of the cycle and seven patients had GnRH agonist triggering to prevent OHSS. Selective use of a low dose of HP-hMG in patients with high levels of AMH provides 5-14 oocytes in more than two-thirds of the patients and is safe with low risk of OHSS. The number of aspirated oocytes was independent of AMH levels and ovulatory status, but inversely related to body weight. PMID- 29345164 TI - A positive association between interleukin-1 receptor antagonist and insulin resistance in postmenopausal women. AB - OBJECTIVE: The purpose of this study was to determine whether higher circulating interleukin-1 receptor antagonist (IL-1Ra), an anti-inflammatory cytokine, was associated with insulin resistance in postmenopausal women. METHODS: We measured IL-1Ra concentrations in 160 naturally postmenopausal women without a history of diabetes mellitus. A Pearson coefficient was computed to assess the relationship between plasma IL-1Ra and homeostasis model assessment of insulin resistance (HOMA-IR). The association between HOMA-IR and IL-1Ra plasma level above the median was assessed by logistic regression. Linear regression was used to explore the determinants of IL-1Ra plasma levels. RESULTS: A significant positive correlation existed between IL-1Ra and HOMA-IR (r = 0.42, p < .0001). The upper tertile group of HOMA-IR was associated with approximately 4.5-fold increased risk of plasma IL-1Ra level above the median compared with the low-tertile group after adjustments. When multiple correlates were entered into the regression model simultaneously, only Log HOMA-IR remained significantly related to Log IL 1Ra (p = .007). CONCLUSIONS: Our results demonstrated a positive association between plasma IL-1Ra and insulin resistance in postmenopausal women. This analysis suggested that insulin resistance was an important determinant of circulating IL-1Ra for these women. PMID- 29345165 TI - Oral contraceptive pills as an option for non-surgical management of retained products of conception - a preliminary study. AB - Many Patients with persistent retained products of conception prefers to avoid surgical interventions, such as a dilatation and curettage (D&C) that might pose an additional future risk to their already compromised fertility or obstetric performance. The aim of this study was to the possibility of induced withdrawal bleeding following oral contraceptive administration as a non-surgical treatment for patients with persistent retained products of conception (RPOC). A retrospective study of patients presenting with retained products of conception (RPOC) after failed expectant management or after treatment with PGE1 was performed. Twelve women presenting with RPOC at <=8 weeks gestation with minimal to mild vaginal bleeding and no signs of infection were treated with oral contraceptive pill (OCP) containing 0.03 mg ethinylestradiol and 0.15 mg of desogestrel for 3 weeks. Out of the 12 patients treated, nine women (75%) successfully expelled the RPOC after completing the three-week course of OCPs. The three cases (25%) that did not resolve following OCP treatment had pregnancy products with positive blood flow on Doppler examination. We conclude that OCPs may be a useful medical treatment option for persisting RPOC in selected patients with absence blood flow on Doppler examination wishing to avoid surgical intervention. PMID- 29345166 TI - Effects of Coffee Components on Muscle Glycogen Recovery: A Systematic Review. AB - Coffee is one of the most consumed beverages in the world, and it can improve insulin sensitivity, stimulating glucose uptake in skeletal muscle when adequate carbohydrate intake is observed. The aim of this review is to analyze the effects of coffee and coffee components on muscle glycogen metabolism. A literature search was conducted according to Preferred Reporting Items for Systematic Reviews and Meta-Analysis, and seven studies were included, that explored the effects of coffee components on various substances and signaling proteins. In one of the studies with humans, caffeine was shown to increase glucose levels, Ca2+/calmodulin-dependent protein kinase phosphorylation, glycogen resynthesis rates, and glycogen accumulation after exercise. After intravenous injection of caffeine in rats, caffeine increased adenosine monophosphate-activated protein kinase (AMPK) and acetyl-CoA carboxylase (ACC) phosphorylation, and glucose transport. In in vitro studies, caffeine raised AMPK and ACC phosphorylation, increasing glucose transport activity and reducing energy status in rat muscle cells. Cafestol and caffeic acid increased insulin secretion in rat beta cells and glucose uptake into human muscle cells. Caffeic acid also increased AMPK and ACC phosphorylation, reducing the energy status and increasing glucose uptake in rat muscle cells. Chlorogenic acid did not show any positive or negative effect. The findings from this review must be taken with caution due to the limited number of studies on the subject. In conclusion, various coffee components had a neutral or positive role in the metabolism of glucose and muscle glycogen, whereas no detrimental effect was described. Coffee beverages should be tested as an option for athletes' glycogen recovery. PMID- 29345167 TI - Dietary Supplements for Health, Adaptation, and Recovery in Athletes. AB - Some dietary supplements are recommended to athletes based on data that supports improved exercise performance. Other dietary supplements are not ergogenic per se, but may improve health, adaptation to exercise, or recovery from injury, and so could help athletes to train and/or compete more effectively. In this review, we describe several dietary supplements that may improve health, exercise adaptation, or recovery. Creatine monohydrate may improve recovery from and adaptation to intense training, recovery from periods of injury with extreme inactivity, cognitive processing, and reduce severity of or enhance recovery from mild traumatic brain injury (mTBI). Omega 3-fatty acid supplementation may also reduce severity of or enhance recovery from mTBI. Replenishment of vitamin D insufficiency or deficiency will likely improve some aspects of immune, bone, and muscle health. Probiotic supplementation can reduce the incidence, duration, and severity of upper respiratory tract infection, which may indirectly improve training or competitive performance. Preliminary data show that gelatin and/or collagen may improve connective tissue health. Some anti-inflammatory supplements, such as curcumin or tart cherry juice, may reduce inflammation and possibly delayed onset muscle soreness (DOMS). Beta-hydroxy beta-methylbutyrate (HMB) does not consistently increase strength and/or lean mass or reduce markers of muscle damage, but more research on recovery from injury that includes periods of extreme inactivity is needed. Several dietary supplements, including creatine monohydrate, omega 3-fatty acids, vitamin D, probiotics, gelatin, and curcumin/tart cherry juice could help athletes train and/or compete more effectively. PMID- 29345168 TI - Mother's age at menopause but not own age at menarche has an impact on ovarian reserve. AB - To detect clinical parameters impacting ovarian reserve, data were analyzed from 573 patients who had an anti-Mullerian hormone (AMH) measurement for infertility treatment. No impact was found on the age at menarche but a significant diminished ovarian reserve was observed when a patient's mother was menopausal before age 50. These data suggest that ovarian reserve must be monitored in such patients to offer them fertility preservation when at risk of premature ovarian insufficiency (POI). PMID- 29345169 TI - A case of diffuse large B-cell lymphoma with MYC gene cluster amplification related to chromothripsis. PMID- 29345170 TI - Cemented total hip replacement in patients under 55 years. AB - Background and purpose - About 86,000 total hip replacements (THR) have been registered in patients under 55 years in the National Joint Registry of England and Wales (NJR). The use of uncemented implants has increased, despite their outcomes not having been proven to be significantly better than cemented implants in this registry. We determined the implant survivorship and functional outcomes of cemented THR in patients under 55 years at a minimum follow-up of 22 years. Patients and methods - 104 hips in 100 patients were included in this prospective study. Functional outcome was assessed using the Harris Hip Score and radiographs were assessed for implant failure and "at risk" of failure. Kaplan-Meier survivorship analysis was performed. Results - 89% of hips showed good to excellent results at final follow-up with a mean Harris Hip Score of 88 at a mean follow-up of 25 years. Revision was performed in 3/104 hips. 14 acetabular components and 4 femoral components were "at risk" of failure. The survivorship at minimum 22 years with revision for any reason as the end-point was 97% (95% CI 95-98). Interpretation - Cemented hip replacements perform well in young patients with good long-term functional and radiographic outcomes. PMID- 29345171 TI - Comparison of Bioelectrical Impedance Analysis and Dual-Energy X-Ray Absorptiometry for Estimating Bone Mineral Content. AB - The purpose of this study was to validate single-frequency hand-to-foot bioelectrical impedance analysis (HFBIA) for estimating bone mineral content (BMC) using dual-energy X-ray absorptiometry as the criterion measure in healthy men and women aged 18-40 years. A total of 80 men and women participated in this study. BMC was estimated on the same day using HFBIA and dual-energy X-ray absorptiometry. The HFBIA device provided higher mean BMC values in men and the entire sample, but not in women. A smaller standard error of estimate was observed in women (0.20, corresponding to 8% of the mean reference BMC values) compared with men (0.39, corresponding to 12% of the mean reference BMC values) and the combined sample (0.31). HFBIA provided a smaller constant error and individual estimation error indicated by the 95% limits of agreement in women ( 0.05 +/- 0.39) compared with men (-0.16 +/- 0.78) and the entire sample (-0.10 +/ 0.63). In conclusion, although BMC values were found to be more accurate in women, HFBIA overestimated BMC compared with dual-energy X-ray absorptiometry, especially in individuals with lower values. Given these results, using HFBIA to measure BMC would be inappropriate for diagnostic purposes. PMID- 29345172 TI - Real-world data on first relapse of acute lymphoblastic leukemia in patients >55 years. PMID- 29345173 TI - Effects of Three-Day Serial Sodium Bicarbonate Loading on Performance and Physiological Parameters During a Simulated Basketball Test in Female University Players. AB - The aim of this study was to investigate the effect of 3-day serial sodium bicarbonate ingestion on repeated sprint and jump performance. Fifteen female university basketball players (23.3 +/- 3.4 years; 173.1 +/- 5.8 cm; 65.8 +/- 6.3 kg; 23.6 +/- 4.9% body fat) ingested 0.4 g/kg body mass of sodium bicarbonate or placebo for 3 days (split in three equal daily doses), before completing a simulated basketball exercise. Sprint and circuit times, jump heights, performance decrements, and gastrointestinal side effects were recorded during the test, and blood lactate concentration was measured pre- and posttest. Sodium bicarbonate supplementation led to significant decreases in mean sprint times (1.34 +/- 0.23 vs. 1.70 +/- 0.41 s, p = .008, 95% confidence intervals [-0.54, 0.10 s]) and mean circuit times (30.6 +/- 2.0 vs. 31.3 +/- 2.0 s, p = .044) and significantly greater mean jump height (26.8 [range 25.2-34.2] vs. 26.0 [range 25.6-33.6] cm, p = .013) compared with placebo. Performance decrement was significantly less for sprints with sodium bicarbonate compared with placebo (9.9 [range 3.4-37.0]% vs. 24.7 [range 4.1-61.3]%, p = .013), but not different for jumps (13.1 +/- 4.5% vs. 12.5 +/- 3.1%, p = .321) between conditions. No differences in gastrointestinal side effects were noted between conditions. Significantly greater postexercise blood lactate concentrations were measured in the sodium bicarbonate condition compared with the placebo condition (8.2 +/- 2.8 vs. 6.6 +/- 2.4 mmol/L, p = .010). This study is the first to show that serial loading of sodium bicarbonate is effective for basketball players to improve repeated sprint and jump performance during competition, or withstand greater training load during practice sessions without any gastrointestinal side effects. PMID- 29345174 TI - Using Contemporary Behavior Change Science to Design and Implement an Effective Nutritional Intervention Within Professional Rugby League. AB - Designing and implementing successful dietary intervention is integral to the role of sport nutrition professionals as they attempt to positively change the dietary behavior of athletes. High-performance sport is a time-pressured environment where immediate results can often supersede pursuit of the most effective evidence-based practice. However, efficacious dietary intervention necessitates comprehensive, systematic, and theoretical behavioral design and implementation, if the habitual dietary behaviors of athletes are to be positively changed. Therefore, this case study demonstrates how the Behaviour Change Wheel was used to design and implement an effective nutritional intervention within a professional rugby league. The eight-step intervention targeted athlete consumption of a high-quality dietary intake of 25.1 MJ each day to achieve an overall body mass increase of 5 kg across a 12-week intervention period. The capability, opportunity, motivation, and behavior model and affordability, practicability, effectiveness/cost-effectiveness, acceptability, safety, and equity criteria were used to identify population-specific intervention functions, policy categories, behavior change techniques, and modes of intervention delivery. The resulting intervention was successful, increasing the average daily energy intake of the athlete to 24.5 MJ, which corresponded in a 6.2 kg body mass gain. Despite consuming 0.6 MJ less per day than targeted, secondary outcome measures of diet quality, strength, body composition, and immune function all substantially improved, supporting sufficient energy intake and the overall efficacy of a behavioral approach. Ultimately, the Behaviour Change Wheel provides sport nutrition professionals with an effective and practical stepwise method to design and implement effective nutritional interventions for use within high-performance sport. PMID- 29345175 TI - A role for bone turnover markers beta-CrossLaps (CTX) and amino-terminal propeptide of type I collagen (PINP) as potential indicators for disease progression from MGUS to multiple myeloma. AB - Multiple myeloma (MM) is characterized by bone lesions arising due to unbalanced bone remodeling. Changes in the bone formation marker amino-terminal propeptide of type I collagen (PINP) and the bone resorption marker beta-CrossLaps (CTX) reflect physiologic bone turnover. Whether PINP and CTX have a role in disease progression from monoclonal gammopathy of undetermined significance (MGUS) to MM is unknown. In this cross-sectional follow-up study, 241 patients with MM or MGUS were included. Serum levels of PINP and CTX were significantly higher in MM patients compared to MGUS. Moreover, increasing concentrations of PINP and CTX were observed in those MGUS patients progressing to MM, whereas PINP and CTX levels remained unchanged in MGUS patients with stable disease. In conclusion, these data indicate a potential role of PINP and CTX as biomarkers for the progression of MGUS to MM. PMID- 29345177 TI - Prognostic significance of cathepsin L expression in pediatric acute myeloid leukemia. AB - Overexpression of cathepsin L (CTSL), an endolysosomal cysteine protease, is associated with inferior survival of patients with various human malignancies. We evaluated the expression/activity of CTSL in peripheral blood mononuclear cells (PBMCs) and bone marrow mononuclear cells (BMMCs) of 103 pediatric acute myeloid leukemia (AML) patients to assess its prognostic significance in this malignancy. Thirty-five healthy siblings of patients served as controls. Our results revealed significantly higher CTSL activity (p < .0001), protein (p < .05), and mRNA levels (p < .01) in both PBMCs and BMMCs of patients as compared with controls. BMMCs displayed higher activity of CTSL than PBMCs (p < .01). A dramatic reduction in CTSL activity was recorded after chemotherapy in a significant proportion (74%) of patients (p < .0001). By multivariate analysis, CTSL in BMMCs emerged as a strong independent prognostic marker for overall survival (OS) (p = .004). Thus, our results suggest the potential utility of CTSL in predicting the outcome of pediatric AML. PMID- 29345176 TI - Bone marrow VEGFC expression is associated with multilineage dysplasia and several prognostic markers in adult acute myeloid leukemia, but not with survival. AB - Vascular endothelial growth factor C (VEGFC) stimulates leukemia cell proliferation and survival, and promotes angiogenesis. We studied VEGFC expression in bone marrow samples from 353 adult acute myeloid leukemia (AML) patients and its relationship with several clinical, cytogenetic, and molecular variables. We also studied the expression of 84 genes involved in VEGF signaling in 24 patients. We found that VEGFC expression was higher in AML patients with myelodysplasia-related changes (AML-MRC) than in patients with non-AML-MRC. We also found an association between VEGFC expression and the patient cytogenetic risk group, with those with a worse prognosis having higher VEGFC expression levels. No correlation was observed between VEGFC expression and survival or complete remission. VEGFC expression strongly correlated with expression of the VEGF receptors FLT1, KDR, and NRP1. Thus, in this series, VEGFC expression was increased in AML-MRC and in subgroups with a poorer prognosis, but has no impact on survival. PMID- 29345178 TI - Frequency and Factors Associated With Honorary Authorship in Indian Biomedical Journals: Analysis of Papers Published From 2012 to 2013. AB - Honorary authorship is the inclusion of an author on an article whose contribution does not warrant authorship. We conducted an Internet-based survey among first authors publishing in Indian biomedical journals from 2012 to 2013 to study the frequency and factors associated with honorary authorship. The response rate was 27% (245/908) with the prevalence of perceived, International Committee of Medical Journal Editors (ICMJE)-defined, and unperceived honorary authorship of 20.9% (50/239), 60% (147/245), and 46.9% (115/245), respectively. Those residing in India were found to list more honorary authors. We hope to increase awareness of the ICMJE authorship guidelines and the general issue of honorary authorship among researchers in India and elsewhere. PMID- 29345179 TI - Regulatory Support Improves Subsequent IRB Approval Rates in Studies Initially Deemed Not Ready for Review: A CTSA Institution's Experience. AB - We evaluated the impact of a regulatory support service (known as the Regulatory Knowledge and Support [RKS] program), part of the Medical University of South Carolina's Clinical and Translational Science Award, on the success of Institutional Review Board (IRB) applications that have previously been deemed by the IRB to be Not Ready for Review (NRR). At the time of this evaluation, 77 studies had been deemed NRR, 53 of which came from trainees and junior faculty. All the applications that received regulatory support either received IRB approval or were deemed to not be research, and therefore did not require IRB review. In all, 39.1% (n = 18) of the research teams who did not accept regulatory support successfully received IRB approval. Providing regulatory support, particularly to trainees and junior faculty, may be associated with better success in obtaining IRB approval as well as preventing the unnecessary submission of projects that are not research and would therefore not require IRB review or approval. PMID- 29345181 TI - Corrigendum. PMID- 29345180 TI - Depression Among Caregivers of Patients With Dementia. AB - We aimed to assess depressive symptoms in caregivers of patients with dementia, taking into account variables such as severity of dementia, sex, age, and financial state of the patient. We recruited 222 caregivers of patients with dementia from King Abdulaziz Medical City, Saudi Alzheimer's Disease Association, and online, from February to June 2017, and employed the Patient Health Questionnaire to assess depression, and the Blessed Dementia Scale to assess severity of dementia. The prevalence of clinical depression among the caregivers was 14.9%. Minimal symptoms of depression were experienced by 96 caregivers (43.2%), moderate by 45 (20.3%), moderate-severe by 15 (6.8%), and severe by 8 (3.6%). Forty-six patients had mild dementia (22%), 73 had moderate (34.9%), and 90 had severe (43.1%). Caregivers of patients with dementia experience considerable burden and lower level of health-related quality of life and may be predisposed to developing clinical depression. PMID- 29345182 TI - Breast cancer screening among shift workers: a nationwide population-based survey in Korea. AB - We aimed to examine the association between shift work types and participation in breast cancer screening (BCS) programs by comparing rates of participation for BCS among regular daytime workers and alternative shift workers using data from a nationally representative, population-based survey conducted in Korea. In addition, the results were analyzed according to sociodemographic factors, including occupation, education, income, private health insurance, age, and number of working hours a week. This secondary cross-sectional analysis used data from the 2012 Korean National Health and Nutritional Examination Survey. The target population included women aged >= 40 years who responded as to whether they had undergone BCS in the previous year. Accordingly, we analyzed survey data for a total of 1,193 women and used a multivariate logistic regression analysis to evaluate the differences in factors affecting BCS between regular daytime and alternative shift workers. A logistic regression analysis was performed considering private health insurance as a significant sociodemographic factor for BCS among regular daytime shift workers. In contrast, none of the tested variables could significantly predict adherence to BCS among alternative shift workers. The results of this study suggest the need for the development of comprehensive workplace breast cancer prevention programs by considering shift work types. More attention should be given to female workers with low education levels, those who are uninsured, and young workers to improve the participation rate for BCS at the workplace. PMID- 29345184 TI - Temperature-dependent small RNA expression in Drosophila melanogaster. AB - Temperature has a major impact on gene expression in ectotherms. But until recently, it was not clear in which way, if any, small non-coding RNAs such as miRNAs or piRNAs contribute to thermosensitive gene regulation. We have recently shown that temperature-responsive miRNAs in Drosophila drive adaptation to different ambient temperatures on the transcriptome level. Moreover, we demonstrated that higher temperatures lead to a more efficient piRNA-dependent transposon silencing, possibly due to heat-induced unfolding of RNA secondary structures. In this commentary, we will dwell upon particular interesting aspects connected to our findings, hoping that our point of view may encourage other scientists to address some of the questions raised here. We will particularly focus on aspects related to climate-dependent transposon propagation in evolution and putative transgenerational epigenetic effects of altered small RNA transcriptomes. We further briefly indicate how temperature-responsive miRNAs may confound the interpretation of data obtained from experiments comprising heat shock treatment which is a widely used technique not only in Drosophila genetics. PMID- 29345186 TI - Response to Commentary: Regulatory Support Improves Subsequent IRB Approval Rates in Studies Initially Deemed Not Ready for Review-A CTSA Institution's Experience. PMID- 29345187 TI - The formation of a medical student research committee and its impact on involvement in departmental research. AB - : Over the past ten years, medical students have increased their research activity to be competitive for orthopaedic residency positions throughout the country. This increase may favor students at institutions with a strong history of research production and well-established research departments with supporting staff. To compete with these institutions, a Musculoskeletal Research Committee was developed at a southern academic institution to provide a mutually beneficial link between orthopaedic research faculty and medical students. This manuscript describes the formation of this committee and the resultant involvement of young medical students in departmental research over a one year period. Composed of students and faculty, the committee developed a Research Guide for Medical Students, Research Database and Student List, Medical Students' Webpage, and Routing Form, and holds quarterly meetings for those students active in orthopaedic research. With this platform, the committee aimed to increase young student involvement in research and provide a stratified level of study participation among upper-level students for continued mentorship. In one calendar year, the total number of first and second-year students participating in department research increased 460% (5 to 28). Also, the total number of research projects with student involvement from these two classes increased 780% (5 to 44). The introduction of a research committee is an effective method of stimulating student interest in departmental research. Early participation results are promising, and this method may be applicable to other departments and institutions hoping to increase research productivity. ABBREVIATIONS: IRB: Institutional Review Board. PMID- 29345188 TI - Arsenic removal from alkaline leaching solution using Fe (III) precipitation. AB - The alkaline leaching solution from arsenic-containing gold concentrate contains a large amount of arsenate ions, which should be removed because it is harmful to the production process and to the environment. In this study, conventional Fe (III) precipitation was used to remove arsenic from the leaching solution. The precipitation reaction was carried out at the normal temperature, and the effects of pH value and Fe/As ratio on the arsenic removal were investigated. The results show that the removal rate of arsenic is distinctive at different pH values, and the effect is best within the pH range of 5.25-5.96. The removal rate can be further increased by increasing the ratio of Fe/As. When the pH = 5.25-5.96 and Fe/As > 1.8, the arsenic in the solution can be reduced to below 5 mg/L. However, the crystallinity of ferric arsenate is poor, and the particle size is small, most of which is about 1 MUm. The leaching toxicity test shows the leaching toxicity of precipitates gradually decreased by the increase of Fe/As. The precipitates can be stored safely as the ratio of Fe/As exceeded 2.5. PMID- 29345185 TI - Drugging tRNA aminoacylation. AB - Inhibition of tRNA aminoacylation has proven to be an effective antimicrobial strategy, impeding an essential step of protein synthesis. Mupirocin, the well known selective inhibitor of bacterial isoleucyl-tRNA synthetase, is one of three aminoacylation inhibitors now approved for human or animal use. However, design of novel aminoacylation inhibitors is complicated by the steadfast requirement to avoid off-target inhibition of protein synthesis in human cells. Here we review available data regarding known aminoacylation inhibitors as well as key amino acid residues in aminoacyl-tRNA synthetases (aaRSs) and nucleotides in tRNA that determine the specificity and strength of the aaRS-tRNA interaction. Unlike most ligand-protein interactions, the aaRS-tRNA recognition interaction represents coevolution of both the tRNA and aaRS structures to conserve the specificity of aminoacylation. This property means that many determinants of tRNA recognition in pathogens have diverged from those of humans-a phenomenon that provides a valuable source of data for antimicrobial drug development. PMID- 29345189 TI - MicroRNA-19 contributes to the malignant phenotypes of osteosarcoma in vitro by targeting Pax6. AB - This study was conducted to detect the expression of miR-19 and Pax6 (Paired box protein 6) in human osteosarcoma cells and the effects on biological characteristics of osteosarcoma cells. Quantitative real-time polymerase chain reaction was used to detect the expression of Pax6 and miR-19 in normal human osteoblasts (hFOB 1.19) and osteosarcoma cell lines (U2OS, Saos-2, and MG-63). Results showed that miR-19 was significantly upregulated in osteosarcoma cell lines compared with that in hFOB 1.19 cells, while the expression of Pax6 messenger RNA was significantly downregulated. Pax6 was defined as the target gene of miR-19 which was validated by luciferase reporter gene analysis. Results indicated that miR-19 had an interaction with Pax6 3'-untranslated region. At the same time, the protein expression of Pax6 was significantly decreased in the MG 63 cells transfected with miR-19 mimic and was notably enhanced in osteosarcoma MG-63 cells transfected with miR-19 inhibitor. These data suggested that Pax6 was a target of miR-19 in osteosarcoma MG-63 cells. The effects of miR-19 on the biological behavior of MG-63 cells were determined by 3-(4,5-dimethylthiazol-2 yl)-2,5-diphenyltetrazolium bromide, flow cytometry, and Transwell assay. Results showed that the downregulation of miR-19 inhibited cell viability, reduced the percentage of cells in S phase and the number of cells passing through the Transwell chamber, and increased the number of apoptotic cells. Western blot analysis showed that the inhibition of miR-19 significantly increased the expression of epithelial proteins (E-cadherin and beta-catenin) and decreased the expression of mesenchymal protein (Vimentin), extracellular signal-regulated kinase, and phosphorylated extracellular signal-regulated kinase in MG-63 cells. MiR-19 inhibitor and Pax6 small interfering RNA were simultaneously transfected into MG-63 cells. Results from 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyltetrazolium bromide, flow cytometry, and Transwell assay demonstrated that the inhibition of Pax6 expression in MG-63 cells could reverse the cell biological effects induced by the inhibition of miR-19 expression. Based on these findings, it was suggested that miR-19, upregulated in osteosarcoma cells, negatively regulated the expression of Pax6, which can promote the malignant phenotypes of osteosarcoma cells via activation of the extracellular signal regulated kinase signaling pathways. Therefore, miR-19/Pax6 may offer potential for use as a target for the treatment of osteosarcoma. PMID- 29345191 TI - Enhanced sulfide removal and bioelectricity generation in microbial fuel cells with anodes modified by vertically oriented nanosheets. AB - Anode materials and structures are of critical importance for microbial fuel cells (MFCs) recovering energy from toxic substrates. Carbon-fiber-felt anodes modified by layers of vertically oriented TiO2 and Fe2O3 nanosheets were applied in the present study. Enhanced sulfide removal efficiencies (both over 90%) were obtained after a 48-h operation, with maximum power densities improved by 1.53 and 1.36 folds compared with MFCs with raw carbon-fiber-felt anode. The modified anodes provided more active sites for microbial adhesion with increasing biomass densities. High-throughput 16S rRNA gene sequencing analysis also indicated the increase in microbial diversities. Bacteroidetes responsible for bioelectricity generation with Thiobacillus and Spirochaeta dominating sulfide removal were found in the MFCs with the modified anodes, with less anaerobic fermentative bacteria as Firmicutes appeared. This indicates that the proposed materials are competitive for applications of MFCs generating bioelectricity from toxic sulfide. PMID- 29345190 TI - Magnetoelectric nanoparticles for delivery of antitumor peptides into glioblastoma cells by magnetic fields. AB - AIM: We studied externally controlled anticancer effects of binding tumor growth inhibiting synthetic peptides to magnetoelectric nanoparticles (MENs) on treatment of glioblastomas. METHODS: Hydrothermally synthesized 30-nm MENs had the core-shell composition of CoFe2O4@BaTiO3. Molecules of growth hormone releasing hormone antagonist of the MIA class (MIA690) were chemically bound to MENs. In vitro experiments utilized human glioblastoma cells (U-87MG) and human brain microvascular endothelial cells. RESULTS: The studies demonstrated externally controlled high-efficacy binding of MIA690 to MENs, targeted specificity to glioblastoma cells and on-demand release of the peptide by application of d.c. and a.c. magnetic fields, respectively. CONCLUSION: The results support the use of MENs as an effective drug delivery carrier for growth hormone-releasing hormone antagonists in the treatment of human glioblastomas. PMID- 29345192 TI - Cross-validation of the Dot Counting Test in a large sample of credible and non credible patients referred for neuropsychological testing. AB - OBJECTIVE: To cross-validate the Dot Counting Test in a large neuropsychological sample. METHOD: Dot Counting Test scores were compared in credible (n = 142) and non-credible (n = 335) neuropsychology referrals. RESULTS: Non-credible patients scored significantly higher than credible patients on all Dot Counting Test scores. While the original E-score cut-off of >=17 achieved excellent specificity (96.5%), it was associated with mediocre sensitivity (52.8%). However, the cut off could be substantially lowered to >=13.80, while still maintaining adequate specificity (>=90%), and raising sensitivity to 70.0%. Examination of non credible subgroups revealed that Dot Counting Test sensitivity in feigned mild traumatic brain injury (mTBI) was 55.8%, whereas sensitivity was 90.6% in patients with non-credible cognitive dysfunction in the context of claimed psychosis, and 81.0% in patients with non-credible cognitive performance in depression or severe TBI. Thus, the Dot Counting Test may have a particular role in detection of non-credible cognitive symptoms in claimed psychiatric disorders. Alternative to use of the E-score, failure on >=1 cut-offs applied to individual Dot Counting Test scores (>=6.0" for mean grouped dot counting time, >=10.0" for mean ungrouped dot counting time, and >=4 errors), occurred in 11.3% of the credible sample, while nearly two-thirds (63.6%) of the non-credible sample failed one of more of these cut-offs. CONCLUSIONS: An E-score cut-off of 13.80, or failure on >=1 individual score cut-offs, resulted in few false positive identifications in credible patients, and achieved high sensitivity (64.0-70.0%), and therefore appear appropriate for use in identifying neurocognitive performance invalidity. PMID- 29345193 TI - Serotonin 2A receptor inhibition protects against the development of pulmonary hypertension and pulmonary vascular remodeling in neonatal mice. AB - Pulmonary hypertension (PH) complicating bronchopulmonary dysplasia (BPD) worsens clinical outcomes in former preterm infants. Increased serotonin (5 hydroxytryptamine, 5-HT) signaling plays a prominent role in PH pathogenesis and progression in adults. We hypothesized that increased 5-HT signaling contributes to the pathogenesis of neonatal PH, complicating BPD and neonatal lung injury. Thus, we investigated 5-HT signaling in neonatal mice exposed to bleomycin, previously demonstrated to induce PH and alveolar simplification. Newborn wild type mice received intraperitoneal PBS, ketanserin (1 mg/kg), bleomycin (3 U/kg) or bleomycin (3 U/kg) plus ketanserin (1 mg/kg) three times weekly for 3 wk. Following treatment with bleomycin, pulmonary expression of the rate-limiting enzyme of 5-HT synthesis, tryptophan hydroxylase-1 (Tph1), was significantly increased. Bleomycin did not affect pulmonary 5-HT 2A receptor (R) expression, but did increase pulmonary gene expression of the 5-HT 2BR and serotonin transporter. Treatment with ketanserin attenuated bleomycin-induced PH (increased RVSP and RVH) and pulmonary vascular remodeling (decreased vessel density and increased muscularization of small vessels). In addition, we found that treatment with ketanserin activated pulmonary MAPK and Akt signaling in mice exposed to bleomycin. We conclude that 5-HT signaling is increased in a murine model of neonatal PH and pharmacological inhibition of the 5-HT 2AR protects against the development of PH in neonatal lung injury. We speculate this occurs through restoration of MAPK signaling and increased Akt signaling. PMID- 29345194 TI - Transient stretch induces cytoskeletal fluidization through the severing action of cofilin. AB - With every deep inspiration (DI) or sigh, the airway wall stretches, as do the airway smooth muscle cells in the airway wall. In response, the airway smooth muscle cell undergoes rapid stretch-induced cytoskeletal fluidization. As a molecular mechanism underlying the cytoskeletal fluidization response, we demonstrate a key role for the actin-severing protein cofilin. Using primary human airway smooth muscle cells, we simulated a DI by imposing a transient stretch of physiological magnitude and duration. We used traction microscopy to measure the resulting changes in contractile forces. After a transient stretch, cofilin-knockdown cells exhibited a 29 +/- 5% decrease in contractile force compared with prestretch conditions. By contrast, control cells exhibited a 67 +/ 6% decrease ( P < 0.05, knockdown vs. control). Consistent with these contractile force changes with transient stretch, actin filaments in cofilin knockdown cells remained largely intact, whereas actin filaments in control cells were rapidly disrupted. Furthermore, in cofilin-knockdown cells, contractile force at baseline was higher and rate of remodeling poststretch was slower than in control cells. Additionally, the severing action of cofilin was restricted to the release phase of the transient stretch. We conclude that the actin-severing activity of cofilin is an important factor in stretch-induced cytoskeletal fluidization and may account for an appreciable part of the bronchodilatory effects of a DI. PMID- 29345196 TI - Surfactant protein C dampens inflammation by decreasing JAK/STAT activation during lung repair. AB - Surfactant protein C (SPC), a key component of pulmonary surfactant, also plays a role in regulating inflammation. SPC deficiency in patients and mouse models is associated with increased inflammation and delayed repair, but the key drivers of SPC-regulated inflammation in response to injury are largely unknown. This study focuses on a new mechanism of SPC as an anti-inflammatory molecule using SPC TK/SPC-KO (surfactant protein C-thymidine kinase/surfactant protein C knockout) mice, which represent a novel sterile injury model that mimics clinical acute respiratory distress syndrome (ARDS). SPC-TK mice express the inducible suicide gene thymidine kinase from by the SPC promoter, which targets alveolar type 2 (AT2) cells for depletion in response to ganciclovir (GCV). We compared GCV induced injury and repair in SPC-TK mice that have normal endogenous SPC expression with SPC-TK/SPC-KO mice lacking SPC expression. In contrast to SPC-TK mice, SPC-TK/SPC-KO mice treated with GCV exhibited more severe inflammation, resulting in over 90% mortality; there was only 8% mortality of SPC-TK animals. SPC-TK/SPC-KO mice had highly elevated inflammatory cytokines and granulocyte infiltration in the bronchoalveolar lavage (BAL) fluid. Consistent with a proinflammatory phenotype, immunofluorescence revealed increased phosphorylated signal transduction and activation of transcription 3 (pSTAT3), suggesting enhanced Janus kinase (JAK)/STAT activation in inflammatory and AT2 cells of SPC TK/SPC-KO mice. The level of suppressor of cytokine signaling 3, an anti inflammatory mediator that decreases pSTAT3 signaling, was significantly decreased in the BAL fluid of SPC-TK/SPC-KO mice. Hyperactivation of pSTAT3 and inflammation were rescued by AZD1480, a JAK1/2 inhibitor. Our findings showing a novel role for SPC in regulating inflammation via JAK/STAT may have clinical applications. PMID- 29345197 TI - Neonatal hyperoxia depletes pulmonary vein cardiomyocytes in adult mice via mitochondrial oxidation. AB - Supplemental oxygen given to preterm infants has been associated with permanently altering postnatal lung development. Now that these individuals are reaching adulthood, there is growing concern that early life oxygen exposure may also promote cardiovascular disease through poorly understood mechanisms. We previously reported that adult mice exposed to 100% oxygen between postnatal days 0 and 4 develop pulmonary hypertension, defined pathologically by capillary rarefaction, dilation of arterioles and veins, cardiac failure, and a reduced lifespan. Here, Affymetrix Gene Arrays are used to identify early transcriptional changes that take place in the lung before pulmonary capillary rarefaction. We discovered neonatal hyperoxia reduced expression of cardiac muscle genes, including those involved in contraction, calcium signaling, mitochondrial respiration, and vasodilation. Quantitative RT-PCR, immunohistochemistry, and genetic lineage mapping using Myh6CreER; Rosa26RmT/mG mice revealed this reflected loss of pulmonary vein cardiomyocytes. The greatest loss of cadiomyocytes was seen within the lung followed by a graded loss beginning at the hilum and extending into the left atrium. Loss of these cells was seen by 2 wk of age in mice exposed to >=80% oxygen and was attributed, in part, to reduced proliferation. Administering mitoTEMPO, a scavenger of mitochondrial superoxide during neonatal hyperoxia prevented loss of these cells. Since pulmonary vein cardiomyocytes help pump oxygen-rich blood out of the lung, their early loss following neonatal hyperoxia may contribute to cardiovascular disease seen in these mice, and perhaps in people who were born preterm. PMID- 29345195 TI - Mitochondrial dysfunction and pulmonary hypertension: cause, effect, or both. AB - Pulmonary hypertension describes a heterogeneous disease defined by increased pulmonary artery pressures, and progressive increase in pulmonary vascular resistance due to pathologic remodeling of the pulmonary vasculature involving pulmonary endothelial cells, pericytes, and smooth muscle cells. This process occurs under various conditions, and although these populations vary, the clinical manifestations are the same: progressive dyspnea, increases in right ventricular (RV) afterload and dysfunction, RV-pulmonary artery uncoupling, and right-sided heart failure with systemic circulatory collapse. The overall estimated 5-yr survival rate is 72% in highly functioning patients, and as low as 28% for those presenting with advanced symptoms. Metabolic theories have been suggested as underlying the pathogenesis of pulmonary hypertension with growing evidence of the role of mitochondrial dysfunction involving the major proteins of the electron transport chain, redox-related enzymes, regulators of the proton gradient and calcium homeostasis, regulators of apoptosis, and mitophagy. There remain more studies needed to characterize mitochondrial dysfunction leading to impaired vascular relaxation, increase proliferation, and failure of regulatory mechanisms. The effects on endothelial cells and resulting interactions with their microenvironment remain uncharted territory for future discovery. Additionally, on the basis of observations that the "plexigenic lesions" of pulmonary hypertension resemble the unregulated proliferation of tumor cells, similarities between cancer pathobiology and pulmonary hypertension have been drawn, suggesting interactions between mitochondria and angiogenesis. Recently, mitochondria targeting has become feasible, which may yield new therapeutic strategies. We present a state-of-the-art review of the role of mitochondria in both the pathobiology of pulmonary hypertension and potential therapeutic targets in pulmonary vascular processes. PMID- 29345199 TI - Pulmonary vascular dysfunction secondary to pulmonary arterial hypertension: insights gained through retrograde perfusion. AB - Here, we tested the hypothesis that severe pulmonary arterial hypertension impairs retrograde perfusion. To test this hypothesis, pulmonary arterial hypertension was induced in Fischer rats using a single injection of Sugen 5416 followed by 3 wk of exposure to 10% hypoxia and then 2 wk of normoxia. This Sugen 5416 and hypoxia regimen caused severe pulmonary arterial hypertension, with a Fulton index of 0.73 +/- 0.07, reductions in both the pulmonary arterial acceleration time and pulmonary arterial acceleration to pulmonary arterial ejection times ratio, and extensive medial hypertrophy and occlusive neointimal lesions. Whereas the normotensive circulation accommodated large increases in forward and retrograde flow, the hypertensive circulation did not. During forward flow, pulmonary artery and double occlusion pressures rose sharply at low perfusion rates, resulting in hydrostatic edema. Pulmonary arterial hypertensive lungs possessed an absolute intolerance to retrograde perfusion, and they rapidly developed edema. Retrograde perfusion was not rescued by maximal vasodilation. Retrograde perfusion was preserved in lungs from animals treated with Sugen 5416 and hypoxia for 1 and 3 wk, in lungs from animals with a milder form of hypoxic hypertension, and in normotensive lungs subjected to high outflow pressures. Thus impaired retrograde perfusion coincides with development of severe pulmonary arterial hypertension, with advanced structural defects in the microcirculation. PMID- 29345200 TI - Distinct niches within the extracellular matrix dictate fibroblast function in (cell free) 3D lung tissue cultures. AB - Cues from the extracellular matrix (ECM) and their functional interplay with cells play pivotal roles for development, tissue repair, and disease. However, the precise nature of this interplay remains elusive. We used an innovative 3D cell culture ECM model by decellularizing 300-um-thick ex vivo lung tissue scaffolds (d3D-LTCs) derived from diseased and healthy mouse lungs, which widely mimics the native (patho)physiological in vivo ECM microenvironment. We successfully repopulated all d3D-LTCs with primary human and murine fibroblasts, and moreover, we demonstrated that the cells also populated the innermost core regions of the d3D-LTCs in a real 3D fashion. The engrafted fibroblasts revealed a striking functional plasticity, depending on their localization in distinct ECM niches of the d3D-LTCs, affecting the cells' tissue engraftment, cellular migration rates, cell morphologies, and protein expression and phosphorylation levels. Surprisingly, we also observed fibroblasts that were homing to the lung scaffold's interstitium as well as fibroblasts that were invading fibrotic areas. To date, the functional nature and even the existence of 3D cell matrix adhesions in vivo as well as in 3D culture models is still unclear and controversial. Here, we show that attachment of fibroblasts to the d3D-LTCs evidently occurred via focal adhesions, thus advocating for a relevant functional role in vivo. Furthermore, we found that protein levels of talin, paxillin, and zyxin and phosphorylation levels of paxillin Y118, as well as the migration-relevant small GTPases RhoA, Rac, and CDC42, were significantly reduced compared with their attachment to 2D plastic dishes. In summary, our results strikingly indicate that inherent physical or compositional characteristics of the ECM act as instructive cues altering the functional behavior of engrafted cells. Thus, d3D-LTCs might aid to obtain more realistic data in vitro, with a high relevance for drug discovery and mechanistic studies alike. PMID- 29345198 TI - Fibrin turnover and pleural organization: bench to bedside. AB - Recent studies have shed new light on the role of the fibrinolytic system in the pathogenesis of pleural organization, including the mechanisms by which the system regulates mesenchymal transition of mesothelial cells and how that process affects outcomes of pleural injury. The key contribution of plasminogen activator inhibitor-1 to the outcomes of pleural injury is now better understood as is its role in the regulation of intrapleural fibrinolytic therapy. In addition, the mechanisms by which fibrinolysins are processed after intrapleural administration have now been elucidated, informing new candidate diagnostics and therapeutics for pleural loculation and failed drainage. The emergence of new potential interventional targets offers the potential for the development of new and more effective therapeutic candidates. PMID- 29345201 TI - Clinical validation of nuclear factor kappa B expression in invasive breast cancer. AB - Breast cancer is the most commonly diagnosed cancer in Polish women. The expression of transcription nuclear factor kappa B, a key inducer of inflammatory response promoting carcinogenesis and cancer progression in breast cancer, is not well-established. We assessed the nuclear factor kappa B expression in a total of 119 invasive breast carcinomas and 25 healthy control samples and correlated this expression pattern with several clinical and pathologic parameters including histologic type and grade, tumor size, lymph node status, estrogen receptor status, and progesterone receptor status. The data used for the analysis were derived from medical records. An immunohistochemical analysis of nuclear factor kappa B, estrogen receptor, and progesterone receptor was carried out and evaluation of stainings was performed. The expression of nuclear factor kappa B was significantly higher than that in the corresponding healthy control samples. No statistical difference was demonstrated in nuclear factor kappa B expression in relation to age, menopausal status, lymph node status, tumor size and location, grade and histologic type of tumor, and hormonal status (estrogen receptor and progesterone receptor). Nuclear factor kappa B is significantly overexpressed in invasive breast cancer tissues. Although nuclear factor kappa B status does not correlate with clinicopathological findings, it might provide important additional information on prognosis and become a promising object for targeted therapy. PMID- 29345202 TI - Qualitative and semiquantitative analysis of the protein coronas associated to different functionalized nanoparticles. AB - AIM: The investigation on protein coronas (PCs) adsorbed onto nanoparticle (NP) surface is representing an open issue due to difficulties in detection and clear isolation of the adsorbed proteins. In this study, we investigated protocols able to isolate the compositions of PCs of three polymeric NPs. MATERIALS & METHODS: Unfunctionalized NPs and two functionalized NPs were considered as proof-of concept for the qualitative and semiquantitative analysis of both the corona levels (stably or weakly adsorbed coronas [SC/WC]) of these different nanocarriers. RESULTS: The protocols applied were able to discriminate between the SC and WC. In particular, experimental results indicated that stably adsorbed coronas are prevalently composed by ApoE, while WC by albumin in all the NPs. Otherwise, some differences in WC could be correlated with surface functionalization. CONCLUSION: This experimental approach allows characterizing the whole PCs, proposing a protocol for isolation of different types of proteins composing PCs. PMID- 29345203 TI - Illusionary Science? PMID- 29345205 TI - Update on Lateral Ankle Instability. PMID- 29345206 TI - Successful treatment of refractory autoimmune hemolytic anemia after allogeneic hematopoietic stem cell transplantation with bortezomib. PMID- 29345208 TI - Top-rated AMEE MedEdPublish Papers - September 2017. PMID- 29345207 TI - Thresholds and interpretations: How clinical competency committees identify pediatric residents with performance concerns. AB - BACKGROUND: Clinical competency committee (CCC) identification of residents with performance concerns is critical for early intervention. METHODS: Program directors and 94 CCC members at 14 pediatric residency programs responded to a written survey prompt asking them to describe how they identify residents with performance concerns. Data was analyzed using thematic analysis. RESULTS: Six themes emerged from analysis and were grouped into two domains. The first domain included four themes, each describing a path through which residents could meet or exceed a concern threshold:1) written comments from rotation assessments are foundational in identifying residents with performance concerns, 2) concerning performance extremes stand out, 3) isolated data points may accumulate to raise concern, and 4) developmental trajectory matters. The second domain focused on how CCC members and program directors interpret data to make decisions about residents with concerns and contained 2 themes: 1) using norm- and/or criterion referenced interpretation, and 2) assessing the quality of the data that is reviewed. CONCLUSIONS: Identifying residents with performance concerns is important for their education and the care they provide. This study delineates strategies used by CCC members across several programs for identifying these residents, which may be helpful for other CCCs to consider in their efforts. PMID- 29345209 TI - Medical Teacher in Ten Minutes. PMID- 29345210 TI - The impact of time from diagnosis to treatment in diffuse large B-cell lymphoma. AB - Diffuse large B-cell lymphoma (DLBCL) is a high-grade lymphoma that requires treatment. We retrospectively analyzed the impact of time from diagnosis-to treatment (TDT) on progression-free survival (PFS) and overall survival (OS) in 581 R-CHOP-treated patients. TDT was defined as the interval between diagnostic biopsy date and day 1 R-CHOP. Cox regression showed stage 3-4 disease (p = .01) and longer TDT (HR 1.13, p =.031) were associated with shorter OS. Eastern Cooperative Oncology Group >=2 (p = .02), stage 3-4 disease (p < .001), and longer TDT (HR 1.12, p = .028) predicted shorter PFS. The significant interactions between TDT with lactate dehydrogenase (LDH) and with disease stage prompted separate analyses in high versus normal LDH, and stage 3-4 versus 1-2 disease. Longer TDT was associated with shortened PFS and OS only with advanced stage, and, if high LDH was present. Treatment should be started as early as possible for high-tumor burden disease. Delaying treatment in patients with early stage or low LDH does not seem harmful. PMID- 29345211 TI - Developing single-entity theranostic: drug-based fluorescent nanoclusters with augmented cytotoxicity. AB - AIM: To develop methotrexate (MTX) templated luminescent gold nanoclusters (NCs) as a single unit nanotheranostic for cancer therapy and to assess its potential as an alternative to the parent drug, for drug delivery vehicles (DDVs). METHODS: Theranostics were synthesized and extensively characterized. The stability of the theranostic and its bioimaging aptitude were evaluated. The antiproliferative propensity of the theranostic was gauged with cell viability assays and was supplemented with cytometry-based assays. Feasibility of delivering the MTX NCs instead of parent drug on a DDV was also checked. RESULTS: MTX NCs displayed remarkable physical characteristics and augmented cytotoxicity with a robust stability in phosphate-buffered saline and serum. MTX NCs also demonstrated their amenability to being loaded on a DDV (chitosan folic acid nanoparticles) while retaining their physical and cytotoxic profile. CONCLUSION: Generation of next level drug-based theranostics with the potential of replacing the free drug in drug delivery platforms. PMID- 29345212 TI - Prioritising action to accelerate gender equity and health for women and girls: Microdata analysis of 47 countries. AB - The Sustainable Development Goals set ambitious targets for health. Meeting such will require drastic improvements in the social conditions for women and girls. Understanding which social conditions have the greatest impact on health can help prioritise action, yet there is little comparative data. We use microdata from 338,580 women in 47 low- and middle-income countries to estimate the relative contributions of improved social determinants in bringing about maternal and child health gains over the past 20 years. Regression analyses examine determinants related to education, work, health services, family, and violence; the potential health benefit that could be derived from improving conditions is calculated. Secondary education and child marriage emerge as the strongest and most consistent predictors of health. The largest impact is seen on adolescent births: we estimate that achieving universal completion of secondary schooling for young women could lower adolescent births by 18 percentage points; eliminating child marriages could lower adolescent births by 11 points. Intervening in these two areas could also bring about substantial reductions in the unmet need for family planning, past-year intimate partner violence, and child mortality. Thus, we suggest prioritising policies targeting secondary education and child marriage in order to accelerate gender equity and health. PMID- 29345213 TI - Matcha Green Tea Drinks Enhance Fat Oxidation During Brisk Walking in Females. AB - Intake of the catechin epigallocatechin gallate and caffeine has been shown to enhance exercise-induced fat oxidation. Matcha green tea powder contains catechins and caffeine and is consumed as a drink. We examined the effect of Matcha green tea drinks on metabolic, physiological, and perceived intensity responses during brisk walking. A total of 13 females (age: 27 +/- 8 years, body mass: 65 +/- 7 kg, height: 166 +/- 6 cm) volunteered to participate in the study. Resting metabolic equivalent (1-MET) was measured using Douglas bags (1-MET: 3.4 +/- 0.3 ml.kg-1.min-1). Participants completed an incremental walking protocol to establish the relationship between walking speed and oxygen uptake and individualize the walking speed at 5- or 6-MET. A randomized, crossover design was used with participants tested between Days 9 and 11 of the menstrual cycle (follicular phase). Participants consumed three drinks (each drink made with 1 g of Matcha premium grade; OMGTea Ltd., Brighton, UK) the day before and one drink 2 hr before the 30-min walk at 5- (n = 10) or 6-MET (walking speed: 5.8 +/- 0.4 km/hr) with responses measured at 8-10, 18-20, and 28-30 min. Matcha had no effect on physiological and perceived intensity responses. Matcha resulted in lower respiratory exchange ratio (control: 0.84 +/- 0.04; Matcha: 0.82 +/- 0.04; p < .01) and enhanced fat oxidation during a 30-min brisk walk (control: 0.31 +/- 0.10; Matcha: 0.35 +/- 0.11 g/min; p < .01). Matcha green tea drinking can enhance exercise-induced fat oxidation in females. However, when regular brisk walking with 30-min bouts is being undertaken as part of a weight loss program, the metabolic effects of Matcha should not be overstated. PMID- 29345214 TI - Deciding to adopt revised and new psychological and neuropsychological tests: an inter-organizational position paper. AB - OBJECTIVE: Neuropsychological tests undergo periodic revision intended to improve psychometric properties, normative data, relevance of stimuli, and ease of administration. In addition, new tests are developed to evaluate psychological and neuropsychological constructs, often purporting to improve evaluation effectiveness. However, there is limited professional guidance to neuropsychologists concerning the decision to adopt a revised version of a test and/or replace an older test with a new test purporting to measure the same or overlapping constructs. This paper describes ethical and professional issues related to the selection and use of older versus newer psychological and neuropsychological tests, with the goal of promoting appropriate test selection and evidence-based decision making. METHOD: Ethical and professional issues were reviewed and considered. CONCLUSIONS: The availability of a newer version of a test does not necessarily render obsolete prior versions of the test for purposes that are empirically supported, nor should continued empirically supported use of a prior version of a test be considered unethical practice. Until a revised or new test has published evidence of improved ability to help clinicians to make diagnostic determinations, facilitate treatment, and/or assess change over time, the choice to delay adoption of revised or new tests may be viewed as reasonable and appropriate. Recommendations are offered to facilitate decisions about the adoption of revised and new tests. Ultimately, it is the responsibility of individual neuropsychologists to determine which tests best meet their patients' needs, and to be able to support their decisions with empirical evidence and sound clinical judgment. PMID- 29345215 TI - Relationship of "weekend warrior" and regular physical activity patterns with metabolic syndrome and its associated diseases among Chinese rural adults. AB - : Little is known about the "weekend warrior" pattern of physical activity (PA) where people perform all their PA in 1 or 2 sessions per week. We investigated the relationship of weekend warrior and other PA patterns with metabolic syndrome (MS) and its associated diseases. Data on sociodemographic and lifestyle characteristics were collected from the Nantong Metabolic Syndrome Study that included 13,505 women and 6,997 men between 2007 and 2008. Compared with inactive participants, weekend warriors were at lower risk of MS, diabetes, and hypertension; respective odds ratios (95% confidence intervals) for men and women were 0.58 (0.43-0.79) and 0.67 (0.52-0.86), 0.52 (0.34-0.79) and 0.52 (0.33 0.83), and 0.79 (0.63-0.99) and 0.71 (0.57-0.89). Similar results were observed with regular activity, at a frequency of >3 sessions per week. Both weekend warrior and regular PA patterns showed a 10-60% decrease in abnormal triglycerides, glucose, and blood pressure in both sexes; abnormal waist circumference in men only; and abnormal high-density lipoprotein in women only. Our observed cross-sectional relationships reflect that >150 min/week of moderate PA or 75 min/week vigorous-intensity PA is needed to prevent MS and its component diseases, even if in a short-bout, intermittent PA pattern. ABBREVIATIONS: MS: Metabolic syndrome; WC: Waist circumference; TG: Triglycerides; HDL-c: High density lipoprotein cholesterol; BP: Blood pressure; SBP: Systolic blood pressure, DBP: Diastolic blood pressure; PA: Physical activity; JIS: Joint Interim Statement; CVD: Cardiovascular disease; ATP III: US Third Report of the National Cholesterol Education Program, the Adult Treatment Panel; IDF: International Diabetes Federation; IPAQ: International Physical Activity Questionnaire; BMI: Body mass index; CDC: the Nantong Centers for Disease Control; OR: Odds ratio; CI: Confidence interval; SD: Standard deviation; IQR: Interquartile range. PMID- 29345216 TI - A Novel System for Assessing Facial Muscle Movements: The Facegram 3D. PMID- 29345217 TI - Statistical analysis of human microarray data shows that dietary intervention with n-3 fatty acids, flavonoids and resveratrol enriches for immune response and disease pathways. AB - n-3 Fatty acids, flavonoids and resveratrol are well publicised for their beneficial effects on human health and wellbeing. Identifying common, underlying biological mechanisms targeted by these functional foods would therefore be informative for the public health sector for advising on nutritional health and disease, food and drug product development and consumer interest. The aim of this study was to explore the potential effects of gene expression changes associated with n-3 fatty acids EPA and DHA, flavonoids and resveratrol on modifying biological systems and disease pathways. To test this, publicly available human microarray data for significant gene expression changes associated with dietary intervention with EPA/DHA, flavonoids and resveratrol was subjected to pathway analysis and significance testing for overlap with signals from genome-wide association studies (GWAS) for common non-communicable diseases and biological functions. There was an enrichment of genes implicated in immune responses and disease pathways which was common to all of the treatment conditions tested. Analysis of biological functions and disease pathways indicated anti-tumorigenic properties for EPA/DHA. In line with this, significance testing of the intersection of genes associated with these functional foods and GWAS hits for common biological functions (ageing and cognition) and non-communicable diseases (breast cancer, CVD, diabesity, neurodegeneration and psychiatric disorders) identified significant overlap between the EPA/DHA and breast cancer gene sets. Dietary intervention with EPA/DHA, flavonoids and resveratrol can target important biological and disease pathways suggesting a potentially important role for these bioactive compounds in the prevention and treatment of dietary-related diseases. PMID- 29345218 TI - Mitochondrial DNA suggests cryptic speciation in Prodiplosis longifila Gagne (Diptera: Cecidomyiidae) associated with geographic distance and host specialization. AB - Prodiplosis longifila is reported as a pest of a wide range of species cultivated in America, including citrus, solanaceous species and asparagus. This species has different behavioural traits that are primarily centred on the oviposition habit and the feeding of larvae, which can change depending on the host. However, scarce information is available on population studies and the natural history of this insect, and uncertainty exists about the taxonomic identity and the geographic distribution of this species. The main objective was to perform a phylogenetic and genetic study of P. longifila populations and to define whether the North American and South American populations belong to the same species or whether a differentiation process had occurred due to geographic distance. A second objective was to determine whether this species showed genetic differentiation by host specialization in South America. The phylogenetic and population analyses based on DNA barcodes (cytochrome oxidase I gene) and a region of the ribosomal DNA (ITS2) revealed divergent clades attributable to geographic distance and host specificity. The North American and South American P. longifila insects were confirmed to be genetically distinct, and the genetic distances exceeded the values expected for intraspecific variation. In South America, the population analysis of P. longifila from tomato, sweet pepper (Solanaceae), Tahiti lime and key lime (Rutaceae) hosts evidenced high genetic differentiation between populations associated with different hosts and an absence of gene flow between these groups, suggesting the corresponding formation of cryptic species. PMID- 29345219 TI - Transcriptional changes when Myxococcus xanthus preys on Escherichia coli suggest myxobacterial predators are constitutively toxic but regulate their feeding. AB - Predation is a fundamental ecological process, but within most microbial ecosystems the molecular mechanisms of predation remain poorly understood. We investigated transcriptome changes associated with the predation of Escherichia coli by the myxobacterium Myxococcus xanthus using mRNA sequencing. Exposure to pre-killed prey significantly altered expression of 1319 predator genes. However, the transcriptional response to living prey was minimal, with only 12 genes being significantly up-regulated. The genes most induced by prey presence (kdpA and kdpB, members of the kdp regulon) were confirmed by reverse transcriptase quantitative PCR to be regulated by osmotic shock in M. xanthus, suggesting indirect sensing of prey. However, the prey showed extensive transcriptome changes when co-cultured with predator, with 40 % of its genes (1534) showing significant changes in expression. Bacteriolytic M. xanthus culture supernatant and secreted outer membrane vesicles (OMVs) also induced changes in expression of large numbers of prey genes (598 and 461, respectively). Five metabolic pathways were significantly enriched in prey genes up-regulated on exposure to OMVs, supernatant and/or predatory cells, including those for ribosome and lipopolysaccharide production, suggesting that the prey cell wall and protein production are primary targets of the predator's attack. Our data suggest a model of the myxobacterial predatome (genes and proteins associated with predation) in which the predator constitutively produces secretions which disable its prey whilst simultaneously generating a signal that prey is present. That signal then triggers a regulated feeding response in the predator. PMID- 29345220 TI - Tissue Impression Smears as a Supplementary Diagnostic Method for Histopathology in Cutaneous Leishmaniasis in Sri Lanka. AB - Cutaneous leishmaniasis (CL) is diagnosed mainly by light microscopy of smears made using lesion material. Histopathology is usually done in atypical presentations or when lesion smears are negative. Tissue impression smears (TIS) made from skin biopsy specimens were compared with histopathology for the diagnosis of CL. Out of the 111 patients included, 83 (74.8%) were positive by either methods. The TIS was positive in 70.3% whereas histopathology was positive in 56.8% of patients. Tissue impression smears can be used as a supplementary diagnostic test that gives sensitive and rapid results when tissue biopsies are used as the source of lesion material for diagnosis of CL. PMID- 29345221 TI - Therapeutic Response to Dihydroartemisinin-Piperaquine for P. falciparum and P. vivax Nine Years after Its Introduction in Southern Papua, Indonesia. AB - Dihydroartemisinin-piperaquine (DHP) has been the first-line treatment of uncomplicated malaria due to both Plasmodium falciparum and Plasmodium vivax infections in Papua, Indonesia, since March 2006. The efficacy of DHP was reassessed to determine whether there had been any decline following almost a decade of its extensive use. An open-label drug efficacy study of DHP for uncomplicated P. falciparum and P. vivax malaria was carried out between March 2015 and April 2016 in Timika, Papua, Indonesia. Patients with uncomplicated malaria were administered supervised DHP tablets once daily for 3 days. Clinical and laboratory data were collected daily until parasite clearance and then weekly for 6 weeks. Molecular analysis was undertaken for all patients with recurrent parasitemia. A total of 129 study patients were enrolled in the study. At day 42, the polymerase chain reaction-adjusted efficacy was 97.7% (95% confidence intervals [CI]: 87.4-99.9) in the 61 patients with P. falciparum malaria, and 98.2% [95% CI: 90.3-100] in the 56 patients with P. vivax malaria. By day 2, 98% (56/57) of patients with P. falciparum and 96.9% (63/65) of those with P. vivax had cleared their peripheral parasitemia; none of the patients were still parasitaemic on day 3. Molecular analysis of P. falciparum parasites showed that none (0/61) had K13 mutations associated previously with artemisinin resistance or increased copy number of plasmepsin 2-3 (0/61). In the absence of artemisinin resistance, DHP has retained high efficacy for the treatment of uncomplicated malaria despite extensive drug pressure over a 9-year period. PMID- 29345222 TI - Development and implementation of multilocus sequence typing to study the diversity of the yeast Kluyveromyces marxianus in Italian cheeses. AB - The yeast Kluyveromyces marxianus possesses advantageous traits like rapid growth, GRAS (generally regarded as safe) status and thermotolerance that make it very suitable for diverse biotechnological applications. Although physiological studies demonstrate wide phenotypic variation within the species, there is only limited information available on the genetic diversity of K. marxianus. The aim of this work was to develop a multilocus sequence typing (MLST) method for K. marxianus to improve strain classification and selection. Analysis of housekeeping genes in a number of sequenced strains led to the selection of five genes, IPP1, TFC1, GPH1, GSY2 and SGA1, with sufficient polymorphic sites to allow MLST analysis. These loci were sequenced in an additional 76 strains and used to develop the MLST. This revealed wide diversity in the species and separation of the culture collection and wild strains into multiple distinct clades. Two subsets of strains that shared sources of origin were subjected to MLST and split decomposition analysis. The latter revealed evidence of recombination, indicating that this yeast undergoes mating in the wild. A public access web-based portal was established to allow expansion of the database and application of MLST to additional K. marxianus strains. This will aid understanding of the genetic diversity of the yeast and facilitate biotechnological exploitation. PMID- 29345224 TI - Therapy interventions for children with neurodisabilities: a qualitative scoping study. AB - BACKGROUND: Therapy interventions emerged four times in the top 10 research priorities in a James Lind Alliance research prioritisation exercise for children with neurodisabilities (Morris C, Simkiss D, Busk M, Morris M, Allard A, Denness J, et al. Setting research priorities to improve the health of children and young people with neurodisability: a British Academy of Childhood Disability-James Lind Alliance Research Priority Setting Partnership. BMJ Open 2015;5:e006233). The National Institute for Health Research (NIHR) commissioned this study as part of an information-gathering exercise in response to this. OBJECTIVES: The objectives were to (1) describe the current practice, approaches and schools of thought in relation to physiotherapy, occupational therapy and speech and language therapy for children with neurodisability; (2) explore clinical decision-making; (3) investigate views on outcomes and their measurement, particularly participation as an outcome, that is, the child's ability to have the opportunity to be involved in life situations and activities (e.g. communication, mobility, interpersonal interactions, self-care, learning and applying knowledge); (4) seek views on the aspects of therapy interventions that have an impact on outcomes; and (5) elicit stakeholder views on research needs and priorities. DESIGN, SETTING AND PARTICIPANTS: More than 70 professionals (therapists, service leads, paediatricians and education staff) and 25 parents participated in a qualitative interview (either individually or as part of a focus group). RESULTS: Professional thinking and models of service delivery are in a state of flux and development. There is a move towards goals-focused, family-centred approaches. Work tends to be highly individualised, with few protocols. Parents are certain of the value of therapies, although they may experience difficulties with provision and may seek (additional) private provision. Therapy interventions are conceived as three components: the therapist, the procedures/equipment, etc., and the wider therapeutic environment. They are believed to be highly complex and poorly understood. Although participation is widely endorsed as a core intervention objective of therapy interventions, its suitability, or appropriateness, as an outcome measure was questioned. Other child and/or parent outcomes were identified as more or equally important. Notions of intermediate outcomes - in terms of body structure/function, and the achievement of activities - were regarded as important and not counter to participation-focused approaches. Among therapists, research on intervention effectiveness was (cautiously) welcomed. A number of methodological challenges were identified. A portfolio of study designs - quantitative and qualitative, experimental and observational - was called for, and which included economic evaluation and clear pathways to impact. LIMITATIONS: The study was not successful in recruiting children and young people. Further work is required to elucidate the views of this key stakeholder group. CONCLUSIONS: Therapy interventions are poorly understood. There was strong support, tempered a little by concerns among some about the feasibility of demonstrating impact, for investment in research. FUTURE WORK: The identification of research priorities was a core study objective, and a wide ranging research agenda was identified. It included 'foundational' research into neurodisability, the active components of therapy interventions and the concept of participation. Three areas of evaluation were identified: overall approaches to therapy, service organisation and delivery issues, and the evaluation of specific techniques. Parents regarded evaluations of approaches to therapy (e.g. goals-focused; supporting family-self management) as priorities, along with evaluations of models of service provision. Professionals' views were broadly similar, with an additional emphasis on methodological research. In terms of specific techniques, there was no shared agreement regarding priorities, with views informed by personal interests and experiences. FUNDING: The NIHR Health Technology Assessment programme. PMID- 29345223 TI - Case Report: Neurobrucellosis with Plastered Spinal Arachnoiditis: A Magnetic Resonance Imaging-Based Report. AB - Diffuse spinal arachnoiditis in neurobrucellosis is a rare manifestation. We report a boy aged 17, presenting with hearing impairment and recurrent vomiting for 18 months, weight loss for 12 months, dysphagia, dysarthria, hypophonia for 6 months, and gait unsteadiness for 5 months. He had bilateral 5th (motor) to 12th cranial nerve palsy, wasting and weakness of limbs, fasciculations, absent tendon reflexes, and positive Babinski's sign. Cerebrospinal fluid (CSF) showed raised protein and pleocytosis. Magnetic resonance imaging (MRI) showed extensive enhancing exudates in cisterns and post-contrast enhancement of bilateral 5th, 6th, 7th, and 8th nerves. Spine showed clumping with contrast enhancement of the cauda equina roots and encasement of the cord with exudates. Serum and CSF were positive for anti-Brucella antibodies. He showed significant improvement with antibiotics. At 4 months follow-up, MRI demonstrated near complete resolution of cranial and spinal arachnoiditis. It is important to recognize such rare atypical presentations of neurobrucellosis. PMID- 29345226 TI - Failure to Use Ultrasound Is a Glaring Shortcoming. PMID- 29345225 TI - Indications for the Surgical Management of Benign Goiter in Adults. AB - BACKGROUND: Thyroidectomy is still three to six times more common in Germany than in the USA, Great Britain, and the Scandinavian countries. Thus, the question is often asked whether thyroidectomy in Germany is being performed for the correct indications. METHODS: This review is based on studies and guidelines containing information on the indications for surgery in benign goiter and Graves' disease; these publications were retrieved by a systematic literature search in the Medline and Cochrane Library databases (1990-2016). The indications recommended here were determined by vote by the German Society for General and Visceral Surgery (Deutsche Gesellschaft fur Allgemein- und Viszeralchirurgie, DGAV). RESULTS: On the basis of the available evidence (levels 2-4), and in the absence of prospective studies, the indications for surgery in goiter include a well founded suspicion of malignancy, local compressive symptoms, and, rarely, cosmesis. In hyperthyroid goiter and Graves' disease, surgery is a potential alternative to radio - iodine therapy, particularly if the volume of the thyroid gland exceeds 80 mL, in patients with advanced or active orbitopathy, and in female patients who are, or plan to be, pregnant. Large, asymptomatic, euthyroid nodular goiter without any suspicion of malignancy and scintigraphically "cold" nodules without any other evidence of malignancy are not indications for surgery. Thyroid operations of higher levels of difficulty (e.g., recurrent goiter, retrosternal extension, Graves' disease) should be carried out in institutions with special expertise in thyroid surgery. CONCLUSION: The decision to operate should be made on an interdisciplinary basis and in conformity with the relevant guidelines after all of the appropriate diagnostic studies have been performed. The radicality of any proposed surgical procedure should be weighed against its potential complications. PMID- 29345227 TI - Experience and a Certain Amount of Time Are Required. PMID- 29345228 TI - Ultrasound First. PMID- 29345229 TI - Oral Contrast is no Longer Needed. PMID- 29345230 TI - Critical Scrutiny Needed. PMID- 29345231 TI - In Reply. PMID- 29345232 TI - A Rare Cause of Chronic Cough. PMID- 29345233 TI - Multiple Endobronchial Chondromas. PMID- 29345235 TI - News on Climate Change, Air Pollution, and Allergic Triggers of Asthma. AB - The rising frequency of obstructive respiratory diseases during recent years, in particular allergic asthma, can be partially explained by changes in the environment, with the increasing presence in the atmosphere of chemical triggers (particulate matter and gaseous components such as nitrogen dioxide and ozone) and biologic triggers (aeroallergens). In allergic individuals, aeroallergens stimulate airway sensitization and thus induce symptoms of bronchial asthma. Over the last 50 years, the earth's temperature has risen markedly, likely because of growing concentrations of anthropogenic greenhouse gas. Major atmospheric and climatic changes, including global warming induced by human activity, have a considerable impact on the biosphere and on the human environment. Urbanization and high levels of vehicle emissions induce symptoms of bronchial obstruction (in particular bronchial asthma), more so in people living in urban areas compared than in those who live in rural areas. Measures need to be taken to mitigate the future impact of climate change and global warming. However, while global emissions continue to rise, we must learn to adapt to climate variability. PMID- 29345234 TI - Current Approaches to Epistaxis Treatment in Primary and Secondary Care. AB - BACKGROUND: The lifetime prevalence of epistaxis is approximately 60%, and 6-10% of the affected persons need medical care. In rare cases, severe bleeding calls for the rapid initiation of effective treatment. METHODS: This review is based on pertinent articles that were retrieved by a selective search PubMed, and on the authors' clinical experience. RESULTS: There are no German guidelines for the management of epistaxis. The available evidence consists mainly of retro spective analyses and expert opinions. 65-75% of the patients who require treatment can be adequately cared for by their primary care physician or by an emergency physician with baseline measures. If there is persistent anterior epistaxis, an otorhinolaryngologist can control the bleeding sastisfactorily in 78-88% of cases with chemical or electrical cauterization. Nasal packing is used if this treatment fails, or for posterior epistaxis. In a retrospective study, surgical treatment was found to be more effective than nasal packing in the treatment of posterior epistaxis (97% versus 62% treatment success). Percutaneous embolization is an alternative treatment for patients whom general anesthesia would put at high risk. CONCLUSION: The treatment of severe or recurrent epistaxis requires the interdisciplinary collaboration of the primary care physician, the emergency physician, the practice-based otolaryngologist, and the hospital otolaryngology service. Uniform guidelines and epidemiological studies on this topic would be desirable. PMID- 29345237 TI - Beyond the impact factor: may we have your attention, please? PMID- 29345236 TI - GLCCI1 Polymorphism rs37973 and Response to Treatment of Asthma With Inhaled Corticosteroids. AB - BACKGROUND: The response to asthma treatment is highly variable, and having pharmacogenetic markers that predict response to treatment would bring us one step closer to personalized treatment. Genome-wide association studies have shown that polymorphisms in GLCCI1 could be associated with the response to inhaled corticosteroids (ICSs) in asthma patients. MATERIAL AND METHODS: We genotyped rs37973 in GLCCI1 in 208 adult asthma patients treated with ICSs. The percentage change in FEV1, % predicted was analyzed after short-term treatment (3 months) and long-term treatment (at least 3 years). Treatment was defined as successful when FEV1 decreased by <30 mL/year. RESULTS: After 3 months of treatment, FEV1, % predicted was higher in patients with the GG genotype than in patients with the AG+AA genotype, and this genotype-dependent difference was only evident in nonsmokers. Similar results were found in nonsmokers and patients with atopy after at least 3 years of treatment, when all patients were analyzed. Even though no differences were observed for success of treatment (good vs poor response) when the whole group of patients was analyzed, genotype-dependent treatment success was highly influenced by smoking and atopy. The GG genotype was overrepresented in nonsmokers and patients with atopy and a good response. CONCLUSIONS: rs37973 was associated with response to short- and long-term treatment; however, smoking and atopy had a considerable effect on pharmacogenetic association. Furthermore, in contrast with findings from genome wide association studies, we found the GG genotype to be associated with better treatment response. PMID- 29345238 TI - Assessing coronary disease in patients with severe aortic stenosis: the need for a 'valid' gold standard for validation studies? PMID- 29345239 TI - The business of risk. PMID- 29345240 TI - Polymeric bioresorbable coronary scaffolds: the hype is over, but the dream lives on. PMID- 29345242 TI - Joint estimation of activity and attenuation for PET using pragmatic MR-based prior: application to clinical TOF PET/MR whole-body data for FDG and non-FDG tracers. AB - Accurate and robust attenuation correction remains challenging in hybrid PET/MR particularly for torsos because it is difficult to segment bones, lungs and internal air in MR images. Additionally, MR suffers from susceptibility artifacts when a metallic implant is present. Recently, joint estimation (JE) of activity and attenuation based on PET data, also known as maximum likelihood reconstruction of activity and attenuation, has gained considerable interest because of (1) its promise to address the challenges in MR-based attenuation correction (MRAC), and (2) recent advances in time-of-flight (TOF) technology, which is known to be the key to the success of JE. In this paper, we implement a JE algorithm using an MR-based prior and evaluate the algorithm using whole-body PET/MR patient data, for both FDG and non-FDG tracers, acquired from GE SIGNA PET/MR scanners with TOF capability. The weight of the MR-based prior is spatially modulated, based on MR signal strength, to control the balance between MRAC and JE. Large prior weights are used in strong MR signal regions such as soft tissue and fat (i.e. MR tissue classification with a high degree of certainty) and small weights are used in low MR signal regions (i.e. MR tissue classification with a low degree of certainty). The MR-based prior is pragmatic in the sense that it is convex and does not require training or population statistics while exploiting synergies between MRAC and JE. We demonstrate the JE algorithm has the potential to improve the robustness and accuracy of MRAC by recovering the attenuation of metallic implants, internal air and some bones and by better delineating lung boundaries, not only for FDG but also for more specific non-FDG tracers such as 68Ga-DOTATOC and 18F-Fluoride. PMID- 29345243 TI - Electronic and mechanical response of graphene on BaTiO3 at martensitic phase transitions. AB - Graphene is extremely sensitive to optical, electrical and mechanical stimuli, which cause a significant variation of the band structure, thus the physiochemical properties. In our work, we report on changes of strain and doping in graphene grown by chemical vapor deposition on copper and transferred onto a BaTiO3(1 0 0) (BTO) single-crystal. The BTO is known as a ferroelectric material, which undergoes several thermoelastic martensitic phase transitions when it is cooled from 300 K to 10 K. In order to enhance the very weak Raman signal of the graphene monolayer (ML) on the BTO, a 15 nm thin gold layer was deposited on top of the graphene ML to benefit from the surface enhanced Raman scattering. Using temperature dependent Raman spectral mapping, the principal Raman modes (D, G and 2D) of the graphene ML were followed in situ. From a careful analysis of these Raman modes, we conclude that the induced strain and doping of the graphene ML follows the martensitic phase transitions of the BTO crystal. Our study suggests potential exploitation of the graphene as a highly sensitive opto-mechanical sensor or transducer. PMID- 29345244 TI - In vitro physical and biological characterization of biodegradable elastic polyurethane containing ferulic acid for small-caliber vascular grafts. AB - Demand for small diameter vascular grafts is growing. The main limitations of these grafts include induced thrombotic events, lack of in situ endothelialization, intimal hyperplasia and poor mechanical properties which impair the graft patency rate in long-term applications. Most anti-thrombotic modification methods currently in use usually conflict with the formation of an endothelial cell monolayer on the grafts. Here, we synthesized a novel biodegradable poly(ether ester urethane)urea elastomer (PEEUU) using poly(ethylene glycol) and poly(diethylene glycol adipate) as soft segments. To improve hemocompatibility, synthesized PEEUU was blended with ferulic acid (FA). Scanning electron microscopy, water contact angle measurement, and tensile testing were used to characterize the scaffolds. The PEEUU and PEEUU-FA scaffolds revealed appropriate mechanical properties, with tensile strengths and strains similar to a coronary artery. In vitro assay demonstrated that the release of FA from the scaffold is in a sustained manner. Hemocompatibility tests indicated that the PEEUU-FA sample induced lower platelet adhesion compared to the PEEUU sample. Reductions in hemolysis and fibrinogen adsorption were detected on the PEEUU-FA sample. Cell studies showed that PEEUU-FA supported the adhesion, expansion and proliferation of endothelial cells. The cells maintained an endothelial cell phenotype through the expression of the endothelial cell marker CD31. The results revealed that the new PEEUU modified with FA can be considered as a promising candidate for vascular applications with enhanced blood compatibility and vascular cell-compatibility. PMID- 29345245 TI - Isolating long-wavelength fluctuation from structural relaxation in two dimensional glass: cage-relative displacement. AB - It has recently been revealed that long-wavelength fluctuation exists in two dimensional (2D) glassy systems, having the same origin as that given by the Mermin-Wagner theorem for 2D crystalline solids. In this paper, we discuss how to characterise quantitatively the long-wavelength fluctuation in a molecular dynamics simulation of a lightly supercooled liquid. We employ the cage-relative mean-square displacement (MSD), defined on relative displacement to its cage, to quantitatively separate the long-wavelength fluctuation from the original MSD. For increasing system size the amplitude of acoustic long wavelength fluctuations not only increases but shifts to later times causing a crossover with structural relaxation of caging particles. We further analyse the dynamic correlation length using the cage-relative quantities. It grows as the structural relaxation becomes slower with decreasing temperature, uncovering an overestimation by the four point correlation function due to the long-wavelength fluctuation. These findings motivate the usage of cage-relative MSD as a starting point for analysis of 2D glassy dynamics. PMID- 29345246 TI - Graphene-based stretchable and transparent moisture barrier. AB - We propose an alumina-deposited double-layer graphene (2LG) as a transparent, scalable, and stretchable barrier against moisture; this barrier is indispensable for foldable or stretchable organic displays and electronics. Both the barrier property and stretchability were significantly enhanced through the introduction of 2LG between alumina and a polymeric substrate. 2LG with negligible polymeric residues was coated on the polymeric substrate via a scalable dry transfer method in a roll-to-roll manner; an alumina layer was deposited on the graphene via atomic layer deposition. The effect of the graphene layer on crack generation in the alumina layer was systematically studied under external strain using an in situ micro-tensile tester, and correlations between the deformation-induced defects and water vapor transmission rate were quantitatively analyzed. The enhanced stretchability of alumina-deposited 2LG originated from the interlayer sliding between the graphene layers, which resulted in the crack density of the alumina layer being reduced under external strain. PMID- 29345247 TI - Calculation of the exposure buildup factors for x-ray photons with continuous energy spectrum using Monte Carlo code. AB - Exposure buildup factors are very important for the calculation of radiation shielding and also applied radiation. We must distinguish the monoenergetic and continuous energy spectrum gamma source in order to calculate the exposure buildup factors. In this study, the exposure buildup factors for two x-ray continuous energy spectra (bremsstrahlung) with 5 and 10 MeV endpoint energies were calculated up to depths of 10 mfp of water. It was observed that there is a large difference between the obtained exposure buildup factors due to the monoenergetic and continuous energy spectrum gamma sources. The calculation results show that the relative differences in 5 MeV energy for 1 mfp to 10 mfp are 114% to 44%, respectively, and also the relative differences in 10 MeV energy for 1 mfp to 10 mfp are 87% to 38%, respectively. Actually, the main purpose of this paper is to illustrate the fact that there is a significant difference between the exposure buildup factors due to the continuous and monoenergetic gamma sources. Therefore, radiation staff must pay more attention to calculating the thickness of radiation shields for continuous energy gamma sources. PMID- 29345248 TI - Photo-assisted hysteresis of electronic transport for ZnO nanowire transistors. AB - Recently, ZnO nanowire field effect transistors (FETs) have received renewed interest due to their extraordinary low dimensionality and high sensitivity to external chemical environments and illumination conditions. These prominent properties have promising potential in nanoscale chemical and photo-sensors. In this article, we have fabricated ZnO nanowire FETs and have found hysteresis behavior in their transfer characteristics. The mechanism and dynamics of the hysteresis phenomena have been investigated in detail by varying the sweeping rate and range of the gate bias with and without light irradiation. Significantly, light irradiation is of great importance on charge trapping by regulating adsorption and desorption of oxygen at the interface of ZnO/SiO2. Carriers excited by light irradiation can dramatically promote trapping/detrapping processes. With the assistance of light illumination, we have demonstrated a photon-assisted nonvolatile memory which employs the ZnO nanowire FET. The device exhibits reliable programming/erasing operations and a large on/off ratio. The proposed proto-type memory has thus provided a possible novel path for creating a memory functionality to other low-dimensional material systems. PMID- 29345250 TI - Cancer-associated cachexia. PMID- 29345249 TI - Effects of 1,25-Dihydroxyvitamin D3 on the Prevention of Chronic Obstructive Pulmonary Disease (COPD) in Rats Exposed to Air Pollutant Particles Less than 2.5 Micrometers in Diameter (PM2.5). AB - BACKGROUND This study aimed to investigate the effects of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) on airway changes in chronic obstructive pulmonary disease (COPD) rats exposed to air pollutant particles less than 2.5 micrometers in diameter (PM2.5), and to evaluate the mechanisms. MATERIAL AND METHODS Three groups were included in this study: a normal group, a COPD model group, and a COPD with 1,25(OH)2D3 treatment group. In each group, the rats were divided into four subgroups: control and different doses of PM2.5 (1.6, 8 and 40 mg/kg body weight). Apoptosis in lung tissue was detected by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL). The expression of c-Jun N-terminal kinase 1 (JNK1) and mucin 5AC (MUC5AC) were detected by real-time polymerase chain reaction (RT-PCR), Western blotting and immunofluorescence staining. RESULTS Compared with corresponding subgroups in normal group, the apoptotic rates in COPD group were significantly increased. By contrast, 1,25(OH)2D3 treatment group significantly reduced COPD-induced apoptosis in lung tissue. Upon the dose increase of PM2.5, the apoptotic rate was also elevated in each group. Compared with the corresponding control in each group, PM2.5 increased apoptosis in a dose-dependent manner. Importantly, 1,25(OH)2D3 also prevented apoptosis in COPD rats exposed to PM2.5. Mechanically, the expression of MUC5AC and JNK1 in COPD group was significantly upregulated, compared with corresponding subgroups in the normal group. Treatment with 1,25(OH)2D3 reduced expression of MUC5AC and JNK1 in COPD rats. It was found that the expression of MUC5AC and JNK1 was elevated with the dose increase of PM2.5 in each group. Consistently, 1,25(OH)2D3 also reduced the expression of MUC5AC and JNK1 in COPD rats exposed to PM2.5. CONCLUSIONS 1,25(OH)2D3 prevented lung injury in COPD rats with or without PM2.5 exposure. Our results suggest that 1,25(OH)2D3 is useful to mitigate the injury caused by COPD. PMID- 29345251 TI - Cancer-associated cachexia. AB - Cancer-associated cachexia is a disorder characterized by loss of body weight with specific losses of skeletal muscle and adipose tissue. Cachexia is driven by a variable combination of reduced food intake and metabolic changes, including elevated energy expenditure, excess catabolism and inflammation. Cachexia is highly associated with cancers of the pancreas, oesophagus, stomach, lung, liver and bowel; this group of malignancies is responsible for half of all cancer deaths worldwide. Cachexia involves diverse mediators derived from the cancer cells and cells within the tumour microenvironment, including inflammatory and immune cells. In addition, endocrine, metabolic and central nervous system perturbations combine with these mediators to elicit catabolic changes in skeletal and cardiac muscle and adipose tissue. At the tissue level, mechanisms include activation of inflammation, proteolysis, autophagy and lipolysis. Cachexia associates with a multitude of morbidities encompassing functional, metabolic and immune disorders as well as aggravated toxicity and complications of cancer therapy. Patients experience impaired quality of life, reduced physical, emotional and social well-being and increased use of healthcare resources. To date, no effective medical intervention completely reverses cachexia and there are no approved drug therapies. Adequate nutritional support remains a mainstay of cachexia therapy, whereas drugs that target overactivation of catabolic processes, cell injury and inflammation are currently under investigation. PMID- 29345253 TI - 3-Acetyl-oleanolic acid ameliorates non-alcoholic fatty liver disease in high fat diet-treated rats by activating AMPK-related pathways. AB - 3-Acetyl-oleanolic acid (3Ac-OA) is a derivative of oleanolic acid (OA), which has shown therapeutic beneficial effects on diabetes and metabolic syndrome. In this study we investigated whether 3Ac-OA exerted beneficial effect on non alcoholic fatty liver disease (NAFLD) in rats and its potential underlying mechanisms. Treatment with 3Ac-OA (1-100 MUmol/L) dose-dependently decreased the intracellular levels of total cholesterol (TC) and triglyceride (TG) in FFA treated primary rat hepatocytes and human HepG2 cell lines in vitro. Furthermore, oil red staining studies showed that 3Ac-OA caused dose-dependent decrease in the number of lipid droplets in FFA-treated primary rat hepatocytes. SD rats were fed a high fat diet (HFD) for 6 weeks and subsequently treated with 3Ac-OA (60, 30, 15 mg.kg-1.d-1) for 4 weeks. 3Ac-OA administration significantly decreased the body weight, liver weight and serum TC, TG, LDL-C levels in HFD rats. Furthermore, 3AcOA administration ameliorated lipid accumulation and cell apoptosis in the liver of HFD rats. Using adipokine array analyses, we found that the levels of 11 adipokines (HGF, ICAM, IGF-1, IGFBP-3, IGFBP-5, IGFBP-6, lipocalin-2, MCP-1, M-CSF, Pref-1 and RAGE) were increased by more than twofold in the serum of 3Ac-OA-treated rats, whereas ICAM, IGF-1 and lipocalin-2 had levels increased by more than 20-fold. Moreover, 3Ac-OA administration significantly increased the expression of glucose transporter type 2 (GLUT-2) and low-density lipoprotein receptor (LDLR), as well as the phosphorylation of AMP activated protein kinase (AMPK), protein kinase B (AKT) and glycogen synthase kinase 3beta (GSK-3beta) in the liver tissues of HFD rats. In conclusion, this study demonstrates that 3Ac-OA exerts a protective effect against hyperlipidemia in NAFLD rats through AMPK-related pathways. PMID- 29345252 TI - Optimization of lentiviral vector production for scale-up in fixed-bed bioreactor. AB - Lentiviral vectors (LVs) are promising tools for gene therapy. However, scaling up the production methods of LVs in order to produce high-quality vectors for clinical purposes has proven to be difficult. In this article, we present a scalable and efficient method to produce LVs with transient transfection of adherent 293T cells in a fixed-bed bioreactor. The disposable iCELLis bioreactors are scalable with a large three-dimensional (3D) growth area range between 0.53 and 500 m2, an integrated perfusion system, and a controllable environment for production. In this study, iCELLis Nano (2.67-4 m2) was used for optimizing production parameters for scale-up. Transfections were first done using traditional calcium phosphate method, but in later runs polyethylenimine was found to be more reliable and easier to use. For scalable LV production, perfusion rate control by measuring cell metabolite concentrations in the bioreactor leads to higher productivity and reduced costs. Optimization of cell seeding density for targeted cell concentration during transfection, use of low compaction fixed-bed and lowering the culture pH have a positive effect on LV productivity. These results show for the first time that iCELLis bioreactor is scalable from bench level to clinical scale LV production. PMID- 29345254 TI - The mTOR inhibitor AZD8055 overcomes tamoxifen resistance in breast cancer cells by down-regulating HSPB8. AB - Tamoxifen, an important endocrine therapeutic agent, is widely used for the treatment of estrogen receptor positive (ER+) breast cancer. However, de novo or acquired resistance prevents patients from benefitting from endocrine approaches and necessitates alternative treatments. In this study, we report that small heat protein beta-8 (HSPB8) may serve as an important molecule in tamoxifen resistance. HSPB8 expression is enhanced in MCF-7 cells resistant to tamoxifen (MCF-7/R) compared to parent cells. Moreover, high expression of HSPB8 associates with poor prognosis in ER+ breast cancer patients but not in patients without classification. Stimulating ER signaling by heterogeneous expression of ERa or 17beta-estradiol promotes HSPB8 expression and reduces the cell population in G1 phase. In contrast, blockage of ER signaling by tamoxifen down-regulates the expression of HSPB8. In addition, knocking down HSPB8 by specific siRNAs induces significant cell cycle arrest at G1 phase. AZD8055 was found to be more potent against the proliferation of MCF-7/R cells than that of parent cells, which was associated with down-regulation of HSPB8. We found that the anti-proliferative activity of AZD8055 was positively correlated with the HSPB8 expression level in ER+ breast cancer cells. Thus, AZD8055 was able to overcome tamoxifen resistance in breast cancer cells, and the expression of HSPB8 may predict the efficacy of AZD8055 in ER+ breast cancer. This hypothesis deserves further investigation. PMID- 29345256 TI - Caregiver Perspectives on Communication During Hospitalization at an Academic Pediatric Institution: A Qualitative Study. AB - OBJECTIVE: Communication among those involved in a child's care during hospitalization can mitigate or exacerbate family stress and confusion. As part of a broader qualitative study, we present an in-depth understanding of communication issues experienced by families during their child's hospitalization and during the transition to home. METHODS: Focus groups and individual interviews stratified by socioeconomic status included caregivers of children recently discharged from a children's hospital after acute illnesses. An open ended, semistructured question guide designed by investigators included communication-related questions addressing information shared with families from the medical team about discharge, diagnoses, instructions, and care plans. By using an inductive thematic analysis, 4 investigators coded transcripts and resolved differences through consensus. RESULTS: A total of 61 caregivers across 11 focus groups and 4 individual interviews participated. Participants were 87% female and 46% non-white. Analyses resulted in 3 communication-related themes. The first theme detailed experiences affecting caregiver perceptions of communication between the inpatient medical team and families. The second revealed communication challenges related to the teaching hospital environment, including confusing messages associated with large multidisciplinary teams, aspects of family-centered rounds, and confusion about medical team member roles. The third reflected caregivers' perceptions of communication between providers in and out of the hospital, including types of communication caregivers observed or believed occurred between medical providers. CONCLUSIONS: Participating caregivers identified various communication concerns and challenges during their child's hospitalization and transition home. Caregiver perspectives can inform strategies to improve experiences, ease challenges inherent to a teaching hospital, and determine which types of communication are most effective. PMID- 29345257 TI - Engaging Families as True Partners During Hospitalization. PMID- 29345255 TI - Pure mechanistic analysis of additive neuroprotective effects between baicalin and jasminoidin in ischemic stroke mice. AB - Both baicalin (BA) and jasminoidin (JA) are active ingredients in Chinese herb medicine Scutellaria baicalensis and Fructus gardeniae, respectively. They have been shown to exert additive neuroprotective action in ischemic stroke models. In this study we used transcriptome analysis to explore the pure therapeutic mechanisms of BA, JA and their combination (BJ) contributing to phenotype variation and reversal of pathological processes. Mice with middle cerebral artery obstruction were treated with BA, JA, their combination (BJ), or concha margaritifera (CM). Cerebral infarct volume was examined to determine the effect of these compounds on phenotype. Using the hippocampus microarray and ingenuity pathway analysis (IPA) software, we exacted the differentially expressed genes, networks, pathways, and functions in positive-phenotype groups (BA, JA and BJ) by comparing with the negative-phenotype group (CM). In the BA, JA, and BJ groups, a total of 7, 4, and 11 specific target molecules, 1, 1, and 4 networks, 51, 59, and 18 canonical pathways and 70, 53, and 64 biological functions, respectively, were identified. Pure therapeutic mechanisms of BA and JA were mainly overlapped in specific target molecules, functions and pathways, which were related to the nervous system, inflammation and immune response. The specific mechanisms of BA and JA were associated with apoptosis and cancer-related signaling and endocrine and hormone regulation, respectively. In the BJ group, novel target profiles distinct from mono-therapies were revealed, including 11 specific target molecules, 10 functions, and 10 pathways, the majority of which were related to a virus-mediated immune response. The pure additive effects between BA and JA were based on enhanced action in virus-mediated immune response. This pure mechanistic analysis may provide a clearer outline of the target profiles of multi-target compounds and combination therapies. PMID- 29345258 TI - Combination of a graphene SERS substrate and magnetic solid phase micro extraction used for the rapid detection of trace illegal additives. AB - Surface enhanced Raman scattering (SERS) is an ultra-sensitive spectroscopy technique, which can provide rich structural information for a great number of molecules, while solid phase micro-extraction (SPME) is an efficient method for sample pretreatment in analytical chemistry, particularly in a micro-system. In the present report, a silver-loaded and graphene-based magnetic composite (Fe3O4@GO@Ag) was fabricated for use as both a SERS-active substrate and SPME material. The pi-pi stacking and fluorescence quenching abilities of GO make the composite a perfect candidate for SERS in analyzing real-world samples. Therefore, through combining the magnetic nanoparticles with a SPME device, we have developed a pretreatment method named as disperse magnetic solid phase micro extraction (Dis-MSPME). In comparison to traditional SPME, the proposed Dis-MSPME realized solid phase micro-extraction from a dispersive system and largely improved the extraction efficiency. Furthermore, by combining the advantages of both Dis-MSPME and SERS we have proposed a new detection method called Dis-MSPME SERS. Finally, as an example, the illegal additive chloramphenicol (CAP) was successfully detected in aqueous solution with low LOQ and LOD values (1.0 * 10-8 and 1.0 * 10-10 M, respectively), which was finalized within 10 min based on the proposed Dis-MSPME-SERS method. Therefore, a simpler, more efficient and sensitive approach to realize enrichment, magnetic separation and detection, all in-one, for the detection of illegal additives has been reported, which will be promising towards the detection of trace amounts of substance in micro-systems. PMID- 29345259 TI - Polymeric carbon nitride nanomesh as an efficient and durable metal-free catalyst for oxidative desulfurization. AB - We report the first use of polymeric carbon nitride (CN) for the catalytic selective oxidation of H2S. The as-prepared CN with unique ultrathin "nanomeshes" structure exhibits excellent H2S conversion and high S selectivity. In particular, the CN nanomesh also displays better durability in the desulfurization reaction than traditional catalysts, such as carbon- and iron based materials. PMID- 29345260 TI - One-pot chemoenzymatic synthesis of trolline and tetrahydroisoquinoline analogues. AB - Chemoenzymatic reaction cascades can provide access to chiral compounds from low cost starting materials in one pot. Here we describe one-pot asymmetric routes to tetrahydroisoquinoline alkaloids (THIAs) using the Pictet-Spenglerase norcoclaurine synthase (NCS) followed by a cyclisation, to give alkaloids with two new heterocyclic rings. These reactions operated with a high atom economy to generate THIAs in high yields. PMID- 29345261 TI - An inert 3D emulsification device for individual precipitation and concentration of amorphous drug nanoparticles. AB - Nanosizing increases the specific surface of drug particles, leading to faster dissolution inside the organism and improving the bioavailability of poorly water soluble drugs. A novel approach for the preparation of drug nanoparticles in water using chemically inert microfluidic emulsification devices is presented in this paper. A lithographic fabrication sequence was established, allowing fabrication of intersecting and coaxial channels of different depths in glass as is required for 3D flow-focusing. Fenofibrate was used as a model for active pharmaceutical ingredients with very low water solubility in the experiments. It was dissolved in ethyl acetate and emulsified in water, as allowed by the 3D flow focusing geometry. In the thread formation regime, the drug solution turned into monodisperse droplets of sizes down to below 1 MUm. Fast supersaturation occurs individually in each droplet, as the disperse phase solvent progressively diffuses into the surrounding water. Liquid antisolvent precipitation results in highly monodisperse and amorphous nanoparticles of sizes down to 128 nm which can be precisely controlled by the continuous and disperse phase pressure. By comparing optically measured droplet sizes with particle sizes by dynamic light scattering, we could confirm that exactly one particle forms in every droplet. Furthermore, a downstream on-chip concentration allowed withdrawal of major volumes of only the continuous phase fluid which enabled an increase of particle concentration by up to 250 times. PMID- 29345262 TI - Copper(i) complexes with phosphine derived from sparfloxacin. Part III: multifaceted cell death and preliminary study of liposomal formulation of selected copper(i) complexes. AB - The cytotoxic effect of iodide or thiocyanate copper(i) complexes (1-PSf, 2-PSf, 3-PSf, 4-PSf) with phosphine derived from sparfloxacin (HSf) and 2,9-dimethyl 1,10-phenanthroline (dmp) or 2,2'-biquinoline (bq) as diimine auxiliary ligands was proved in vitro on somatic (MRC-5) and neoplastic (MCF7) human cell lines. Differences in mode of action were investigated in-depth for the selected dmp and bq complexes (1-PSf, 3-PSf, respectively) by elucidation of the following: (i) the efficiency to produce reactive oxygen species (ROS) in biological systems (cyclic voltammetry); (ii) their impact on mitochondrial membrane potential; (iii) potency for the activation of caspases 3 and 9; (iv) influence on the degree of DNA degradation (comet assay). It was concluded that the apoptosis of cancer cells is directly connected to the caspase-dependent mitochondrial pathway and supported by ROS production along with irreversible DNA fragmentation. Finally, it was demonstrated that the selected copper(i) complex encapsulated inside liposomes (1-PSf-L) exhibited enhanced accumulation inside cancer cells. This resulted in its higher cytotoxicity against cancer cells with therapeutic index of ca. 60. Increased selective accumulation in active neoplasm with simultaneous enhanced bioavailability and reduced systemic toxicity of liposomal formulation of copper(i) complexes can result in the development of new copper based therapeutics and their successful implementation in anticancer chemotherapy. PMID- 29345263 TI - Natural products and ring-closing metathesis: synthesis of sterically congested olefins. AB - Covering: 2002 to August 2017.This review highlights recent RCM reactions towards the synthesis of sterically congested natural products. It offers an insight into various synthetic targets and approaches and provides information on the evolution of catalysts as powerful tools enabling the use of increasingly challenging diene precursors. PMID- 29345264 TI - Giant spontaneous exchange bias obtained by tuning magnetic compensation in samarium ferrite single crystals. AB - Spontaneous exchange bias (SEB) under zero field cooling (ZFC) has recently attracted lots of attention due to its underlying physics and potential applications. Here we report the giant SEB (GSEB) of SmFeO3 single crystals by tuning magnetic compensation by temperature, which is rather convenient. A SEB field of up to 1 T at 3.9 K after ZFC (-1.4 T at 3.9 K after field cooling) was obtained. The SEB shows reciprocal relationship with remnant magnetization. PMID- 29345265 TI - Hierarchical formation of Fe-9eG supramolecular networks via flexible coordination bonds. AB - From the interplay between high-resolution scanning tunneling microscopy imaging/manipulations and density functional theory calculations, we display the hierarchical formation of supramolecular networks by codeposition of 9eG molecules and Fe atoms on Au(111) based on the flexible coordination bonds (the adaptability and versatility in the coordination modes). In the first step, homochiral islands composed of homochiral G4Fe2 motifs are formed; and then in the second step, thermal treatment results in the transformation into the porous networks composed of heterochiral G4Fe2 motifs with the ratio of the components being constant. In situ STM manipulations and the coexistence of some other heterochiral G4Fe2 motifs and clusters also show the flexibility of the coordination bonds involved. These studies may provide a fundamental understanding of the regulations of multilevel supramolecular structures and shed light on the formation of designed supramolecular nanostructures. PMID- 29345266 TI - Efficient interfacial charge transfer through plasmon sensitized Ag@Bi2O3 hierarchical photoanodes for photoelectrocatalytic degradation of chlorinated phenols. AB - The present work demonstrates an extremely proficient and robust study of efficient interfacial charge transfer through plasmonic Ag decorated Bi2O3 hierarchical photoanodes for the photoelectrochemical treatment of chlorinated phenols. Unique 2D flake-like Bi2O3 hierarchical nanostructures were grown onto a fluorine-doped tin oxide (FTO) substrate by a simple chemical bath deposition method using triethanolamine as complexing agent. The formation of Bi2O3 on FTO was governed by the decomposition of a nucleated bismuth-hydroxyl complex (Bi2O1 x(OH)x) and modification to the electrode was carried out by the deposition of Ag via a chemical reduction method using hydrazine hydrate. Both the fabricated electrodes were well characterized for their photo- and electro-optical properties. Efficient charge separation was observed due to the surface plasmon resonance phenomenon of silver nanoparticles with the favorable intrinsic properties of Bi2O3 under application of a small electric bias of 1 V preventing the recombination of charge carriers and thereby increasing the rate of photoelectrocatalytic degradation of the chlorinated phenols. PEC degradation using the Ag@Bi2O3 photoelectrode followed the trend 4-CP < 2,4-DCP < 2,4,6-TCP < P-CP due to efficient attack at the chlorinated positions by reactive oxygen species with increasing chlorine substitution and also due to the absence of an expected chain reaction of the generated chlorine radicals (Cl) during the PEC reaction. The PEC activity of Ag@Bi2O3 was 1.5 times higher than a Bi2O3 nanoflake electrode for 4-CP over 2 h. The fabricated Ag@Bi2O3 proved to be an efficient photoelectrode with synergistic solar-induced photoactivity. A detailed mechanistic study in the presence of scavengers suggests degradation by produced hydroxyl radical species. Thus, physical insights into the degradation of chlorinated phenols were obtained. PMID- 29345267 TI - Ambient storage of microencapsulated Lactobacillus plantarum ST-III by complex coacervation of type-A gelatin and gum arabic. AB - Ambient storage of dry powdered probiotics is necessary for manufacturer's cost reduction and customer's convenience. Complex coacervation is a promising microencapsulation technique. In this work, a probiotic matrix of type-A gelatin/gum arabic/sucrose (GE/GA/S) with high coacervation pH was designed, based on the alkaline isoelectric point of type-A gelatin. Bacterial survival during ambient storage at room temperature and certain relative humidity were detected. To clarify the protection factors of the coacervation matrix of GE/GA/S, dry microcapsules of GA, GE, GE/sucrose and GE/GA were prepared as controls and compared in terms of their morphology, moisture content, dynamic vapor absorption and cell viability. Probiotics in GE/GA/S5.5 microcapsules behaved the best during spray drying, ambient storage and heat treatment. The results proved that sucrose addition was necessary for cell viability against environmental stresses, and that encapsulation by complex coacervation was a positive factor in cell protection, especially at neutral coacervation pH. PMID- 29345268 TI - Homoleptic U(iii) and U(iv) amidate complexes. AB - The syntheses of the first homoleptic U(iii) and U(iv) amidate complexes are described. These can be interconverted by chemical reduction/oxidation, showing an unusual change in coordination number from four in the U(iii) complex to eight in the U(iv) complex in the solid state structures. PMID- 29345269 TI - Tributyltin induces epigenetic changes and decreases the expression of nuclear respiratory factor-1. AB - Tributyltin (TBT), a common organotin environmental pollutant, has been widely used as a component of marine antifouling paints. We previously reported that exposure to TBT inhibits the expression and DNA binding of nuclear respiratory factor-1 (NRF-1) and causes neurotoxicity. In the present study, we focused on the epigenetic effects of TBT and investigated whether TBT decreases NRF-1 expression via epigenetic modifications in SH-SY5Y human neuroblastoma cells. First, we found that exposure to 300 nM TBT decreases NRF-1 expression. We examined epigenetic changes induced by TBT, and showed that TBT causes hypermethylation of the NRF-1 promoter region, increases the amount of methyl-CpG binding protein 2 (MeCP2) bound to the NRF-1 promoter, and alters the expression of DNA methyltransferases and ten-eleven translocation (TET) demethylation enzymes. These results suggest that epigenetic changes play an important role in regulation of NRF-1 expression. Next, we investigated effect of NRF-1 expression decrease on cells, and TBT reduces mitochondrial membrane potential and overexpression of NRF-1 rescued this reduction in membrane potential. Thus, we suggested that NRF-1 is important for maintaining mitochondrial membrane potential. Our study indicates that TBT causes epigenetic changes such as hypermethylation, which increases recruitment of MeCP2 to the NRF-1 promoter and probably lead to decreased of NRF-1 expression and mitochondrial membrane potential. Therefore, this research provides new evidence of the epigenetic action caused by organotin. PMID- 29345270 TI - Energetics and dynamics of the non-natural fluorescent 4AP:DAP base pair. AB - The fluorescent non-natural 4-aminophthalimide (4AP) base, when paired to the complementary 2,4-diaminopyrimidine (DAP) nucleobase, is accommodated in a B-DNA duplex being efficiently recognized and incorporated by DNA polymerases. To complement the experimental studies and rationalize the impact of the above non natural bases on the structure, stability and dynamics of nucleic acid structures, we performed quantum mechanics (QM) calculations along with classical molecular dynamics (MD) simulations. QM calculations were initially focused on the geometry and energetics of the 4AP:DAP non-natural pair and of H-bonded base pairs between 4AP and all the natural bases in their classical Watson-Crick geometries. The QM calculations indicate that the 4AP:DAP pair, despite the fact that it can form 3 H-bonds in a classic Watson-Crick geometry, has a stability comparable to the A:T pair. Then, we extended the study to reverse Watson-Crick geometries, characteristic of parallel strands. MD simulations were carried out on two 13-mer DNA duplexes, featuring a central 4AP:DAP or A:T pair, respectively. No major structural deformation of the duplex was observed during the MD simulation. Snapshots from the MD simulations were subjected to QM calculations to investigate the 4AP:DAP interaction energy when embedded into a duplex structure, and to investigate the impact of the two non-natural bases on the stacking interactions with adjacent bases in the DNA duplex. We found a slight increase in stacking interactions involving the 4AP:DAP pair, counterbalanced by a moderate decrease in H-bonding interactions of the 4AP:DAP and of the adjacent base pairs in the duplex. The results of our study are in agreement with experimental data and complement them by providing an insight into which factors contribute positively and which factors contribute negatively to the structural compatibility of the fluorescent 4AP:DAP pair with a B-DNA structure. PMID- 29345271 TI - Flocculation on a chip: a novel screening approach to determine floc growth rates and select flocculating agents. AB - Flocculation is a key purification step in cell-based processes for the food and pharmaceutical industry where the removal of cells and cellular debris is aided by adding flocculating agents. However, finding the best suited flocculating agent and optimal conditions to achieve rapid and effective flocculation is a non trivial task. In conventional analytical systems, turbulent mixing creates a dynamic equilibrium between floc growth and breakage, constraining the determination of floc formation rates. Furthermore, these systems typically rely on end-point measurements only. We have successfully developed for the first time a microfluidic system for the study of flocculation under well controlled conditions. In our microfluidic device (MUFLOC), floc sizes and growth rates were monitored in real time using high-speed imaging and computational image analysis. The on-line and in situ detection allowed quantification of floc sizes and their growth kinetics. This eliminated the issues of sample handling, sample dispersion, and end-point measurements. We demonstrated the power of this approach by quantifying the growth rates of floc formation under forty different growth conditions by varying industrially relevant flocculating agents (pDADMAC, PEI, PEG), their concentration and dosage. Growth rates between 12.2 MUm s-1 for a strongly cationic flocculant (pDADMAC) and 0.6 MUm s-1 for a non-ionic flocculant (PEG) were observed, demonstrating the potential to rank flocculating conditions in a quantitative way. We have therefore created a screening tool to efficiently compare flocculating agents and rapidly find the best flocculating condition, which will significantly accelerate early bioprocess development. PMID- 29345272 TI - Preparation of Eu(iii) acetylacetonate-doped well-defined titania particles with efficient photoluminescence properties. AB - The aggregation/dispersion of luminescent species is a critical factor that determines their luminescence properties. In this study, europium(iii) acetylacetonate (Eu(acac)3) was doped into a titania matrix to form Eu(acac)3 doped titania particles with well-defined size and shape through a microreactor based sol-gel approach. The morphology and structure of the as-synthesized products were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy and X-ray diffraction measurements. The Eu/Ti value of the products varied in the range from 0.125 to 5.0 and the resulting luminescence properties were examined. It should be noted that there was an optimum Eu/Ti value that exhibited the strongest luminescence. A possible reason for this phenomenon can be explained on the basis of a balance between the inter-molecular distance of Eu(acac)3 and its doped amount. The effects of the crystal phase of the titania matrix on luminescence behavior were also investigated. As a result, Eu(acac)3-doped amorphous titania demonstrated more efficient luminescence than that after calcined at 550 degrees C for 6 h to convert amorphous to anatase probably because of the aggregation of Eu species on the crystallite surface. The stability of the present Eu(acac)3-doped titania was confirmed by preparing thin films on a glass substrate and by applying UV/ozone treatment. As compared to bare Eu(acac)3, degradation in luminescence was suppressed in the case of Eu(acac)3-doped titania. Thus, the present titania-based hybrid with controlled Eu(acac)3 doping is useful as a stable, luminescent material for optical, biological and environmental applications. PMID- 29345283 TI - Regulation of programmed-death ligand in the human head and neck squamous cell carcinoma microenvironment is mediated through matrix metalloproteinase-mediated proteolytic cleavage. AB - Recurrent and/or metastatic head and neck squamous cell carcinoma (R/M HNSCC) is a devastating malignancy with a poor prognosis. According to recent clinical studies, tumour growth can be effectively reduced and survival can be improved by blocking the programmed death receptor-1 (PD-1)/programmed death-ligand 1 (PD-L1) pathway. PD-L1 expression has been proposed as a potential causative mechanism, as HNSCC is highly immunosuppressive. However, anti-PD-1 treatment is beneficial only for certain patients. Therefore, the mechanisms controlling PD-L1 expression warrant further investigation in order to provide a better understanding of the predicting efficacy of and optimising anti-PD-1 therapy, alone or in combination. In this study, PD-L1 protein extracted from the cell membrane was found to be downregulated in OSC-20 cells compared with OSC-19 cells, despite a higher PD-L1 expression in the total cell lysate of the OSC-20 compared with the OSC-19 cells. Several matrix metalloproteinases (MMPs) were found to be upregulated in HNSCC; in particular, MMP-7 and -13 were upregulated in the OSC-20 compared with the OSC 19 cells. Purified PD-L1 was degraded by recombinant MMP-13 and -7. The expression of PD-L1 was significantly restored by a specific inhibitor of MMP-13 (CL82198), which suggested the involvement of MMP-13 in the shedding/cleavage of PD-L1 in the OSC-20 cells. Among the anticancer drugs conventionally used in the treatment of patients with HNSCC, paclitaxel increased MMP-13 expression in R/M HNSCC cells (HOC313 cells) co-cultured without/with dendritic cells (DCs). These results suggest that the shedding/cleavage of PD-L1 by MMP-13 is one of the mechanisms behind the protective effect against invasion and metastasis. Thus, MMP-13 has potential value as a marker predictive of the decreased efficacy of anti-PD-1 therapy. In addition, paclitaxel is a particularly promising candidate for combination therapy in R/M HNSCC with anti-PD-1 therapy. PMID- 29345284 TI - Quantitative proteomics analysis of the role of tetraspanin-8 in the drug resistance of gastric cancer. AB - Gastric cancer, due to its high incidence rate, is the second leading cause of cancer-related mortality worldwide. Chemotherapy is an important component of the multimodal treatment for gastric cancer; however, a significant impediment to successful treatment is multidrug resistance (MDR) in patients with gastric cancer. In the present study, the protein profiles of the MDR cell line, SGC7901/DDP, and its parental cell line, SGC7901, were comparatively analyzed through an iTRAQ-based quantitative proteomics technique. The protein tetraspanin 8 (TSPAN8) was found to be highly expressed in the SGC7901/DDP cells. To examine the role of TSPAN8 in the MDR of SGC7901/DDP cells, we increased cell sensitivity to drugs by increasing apoptosis. Additionally, the silencing of TSPAN8 downregulated Wnt pathway activity, beta-catenin expression and beta-catenin transfer to the nucleus. TSPAN8 was found to bind to NOTCH2, facilitating its mediation of the Wnt/beta-catenin pathway by regulating beta-catenin expression. Overall, the suppression of TSPAN8 expression may prove to be a promising strategy which may aid in the development of novel gastric cancer therapeutic drugs. PMID- 29345285 TI - The epitranscriptome m6A writer METTL3 promotes chemo- and radioresistance in pancreatic cancer cells. AB - N6-methyladenosine (m6A) is the most abundant epitranscriptome modification in mammalian mRNA. Recent years have seen substantial progress in m6A epitranscriptomics, indicating its crucial roles in the initiation and progression of cancer through regulation of RNA stabilities, mRNA splicing, microRNA processing and mRNA translation. However, by what means m6A is dynamically regulated or written by enzymatic components represented by methyltransferase-like 3 (METTL3) and how m6A is significant for each of the numerous genes remain unclear. We focused on METTL3 in pancreatic cancer, the prognosis of which is not satisfactory despite the development of multidisciplinary therapies. We established METTL3-knockdown pancreatic cancer cell line using short hairpin RNA. Although morphologic and proliferative changes were unaffected, METTL3-depleted cells showed higher sensitivity to anticancer reagents such as gemcitabine, 5-fluorouracil, cisplatin and irradiation. Our data suggest that METTL3 is a potent target for enhancing therapeutic efficacy in patients with pancreatic cancer. In addition, we performed cDNA expression analysis followed by gene ontology and protein-protein interaction analysis using the Database for Annotation, Visualization, and Integrated Discovery and Search Tool for the Retrieval of Interacting Genes/Proteins databases, respectively. The results demonstrate that METTL3 was associated with mitogen-activated protein kinase cascades, ubiquitin-dependent process and RNA splicing and regulation of cellular process, suggesting functional roles and targets of METTL3. PMID- 29345286 TI - Cyclooxygenase-2 expression is induced by celecoxib treatment in lung cancer cells and is transferred to neighbor cells via exosomes. AB - Lung cancer is one of most common types of cancer worldwide. Lung cancer results in a death higher rate each year compared to colon, breast and prostate cancer combined. Celecoxib is a selective inhibitor of cyclooxygenase-2 (COX-2), an enzyme of which the expression is induced by various stimuli, such as inflammation. In addition, celecoxib triggers COX-2 loading on exosomes. Exosomes are small vesicles composed of a lipid bilayer membrane and are found in most biological fluids, such as blood breast milk and urine. In this study, we focused on exosomes containing COX-2 proteins from lung cancer cells to determine their involvement in the interaction with neighbor cells following treatment with celecoxib. We found that celecoxib induced COX-2 expression in both the cytosol and exosomes in lung cancer cells. Exosomes from celecoxib-treated lung cancer cell culture supernatant were isolated and incubated with several types of cells. The THP-1, monocytic leukemia cell line effectively absorbed COX-2 by lung cancer cell-derived exosomes. Following incubation with exosomes, the COX-2 protein level was increased in the THP-1 cells; however, COX-2 mRNA expression was not affected. Moreover, prostaglandin E2 (PGE2) and vascular endothelial growth factor (VEGF) production by THP-1 cells was increased following incubation with exosomes from celecoxib-treated lung cancer cells. Conditioned medium from THP-1 following incubation with exosomes promoted formation in EA.hy926 cells. Taken together, our findings suggest that celecoxib induces COX-2 expression in lung cancer cells, and that highly expressed COX-2 in exosomes can be transferred to other cells. PMID- 29345287 TI - Intermittent calorie restriction enhances epithelial-mesenchymal transition through the alteration of energy metabolism in a mouse tumor model. AB - The effect of intermittent calorie restriction (ICR) on cancer is controversial. In this study, we examined the effects of ICR and food content in syngeneic BALB/c mice injected with CT26 mouse colon cancer cells. Mice were subjected to 24-h fasting once a week for 4 weeks, and then provided with a control, high calorie, or trans fatty acid-rich diet. While ICR resulted in increases in tumor weights, metastasis and in the number of cancer stem cells (CSCs) in the tumors or blood of mice fed the control and high-fat diets, it had no effect on body weight after 4 weeks. In particular, we detected increases in the numbers of CSCs in the tumor or blood on the day after starvation, when food overconsumption was detected. Conversely, continuous calorie restriction had no effect on tumor weight, metastasis, or the number of CSCs in tumors or blood. In the post starvation period, energy metabolism in the tumor was altered from oxidative phosphorylation to glycolysis/lactate fermentation, with the acquisition of the epithelial-mesenchymal transition (EMT) phenotype. Hyperglycemia at the post starvation period induced the expression of insulin-like growth factor-1, hypoxia induced factor-1alpha and Nanog, as well as the phosphorylation of Stat3. Taken together, these findings suggest that ICR induces an increase in the number of CSCs and enhances EMT by promoting the Warburg/Crabtree effect following post fasting food overconsumption. PMID- 29345288 TI - Downregulation of miR-205 is associated with glioblastoma cell migration, invasion, and the epithelial-mesenchymal transition, by targeting ZEB1 via the Akt/mTOR signaling pathway. AB - Glioblastoma (GBM) is the most common type of malignant brain tumor. In spite of recent advancements in surgical techniques, chemotherapy, and radiation therapy, patients with GBM often face a dire prognosis. MicroRNAs have been shown to modulate the aggressiveness of various cancers, and have emerged as possible therapeutic agents for the management of GBM. miR-205 is dysregulated in glioma and act as a prognostic indicator. However, the role of miR-205 in the development of GBM has not been elucidated. To better understand the pathogenesis of GBM, we examine the biological significance and molecular mechanisms of miR 205 in GBM cells. Zinc finger E-box binding homeobox 1 (ZEB1) has been shown to regulate the epithelial-mesenchymal transition (EMT), which is strongly associated with GBM malignancy. In the present study, we show miR-205 expression is reduced in GBM tissues and cell lines, and ZEB1 expression is inversely correlated with miR-205 expression. We also show ZEB1 is a downstream target of miR-205 and the Akt/mTOR signaling pathway is activated when miR-205 interacts with ZEB1. Increased activity of miR-205 in GBM cells significantly inhibits migration and invasion, and prevents EMT. Furthermore, overexpression of ZEB1 partially abolishes these inhibitory effects of miR-205. We show that miR-205 negatively regulates the expression of ZEB1 in GBM, inhibits cell migration and invasion, and prevents EMT, at least in part through the inhibition of the activation of the Akt/mTOR signaling pathway. Our results indicate miR-205 may be an efficacious therapeutic agent in the treatment of GBM. PMID- 29345289 TI - No erythropoietin-induced growth is observed in non-small cell lung cancer cells. AB - Lung cancer patients have the highest incidence of anemia among patients with solid tumors. The use of recombinant human erythropoietin (Epo) has consistently been shown to reduce the need for blood transfusions and to increase hemoglobin levels in lung cancer patients with chemotherapy-induced anemia. However, clinical and preclinical studies have prompted concerns that Epo and the presence of its receptor, EpoR, in tumor cells may be responsible for adverse effects and, eventually, death. The question has been raised whether Epo promotes tumor growth and inhibits the death of cancer cells. In this study, we investigated the presence and functionality of EpoR, as well as the implications of Epo upon the proliferation and survival of lung cancer cells. Since the protein expression of both Epo and EpoR is induced by hypoxia, which is frequently present in lung cancer, the cells were treated with Epo under both normoxic and hypoxic conditions (1% O2). By using quantitative (real-time) PCR, western blot analysis, and immunocytochemical staining, three non-small cell lung cancer (NSCLC) cell lines (A427, A549 and NCI-H358) were analyzed for the expression of EpoR and its specific downstream signaling pathways [Janus kinase 2 (Jak2)-signal transducer and activator of transcription 5 (STAT5), phosphatidylinositol-3-kinase (PI3K) Akt, mitogen-activated protein (MAP) kinase]. The effects of 100 U/ml Epo on cell proliferation and cisplatin-induced apoptosis were assessed. All NSCLC cell lines expressed EpoR mRNA and protein, while these levels differed considerably between the cell lines. We found the constitutive phosphorylation of EpoR and most of its downstream signaling pathways (STAT5, Akt and ERK1/2) independently of Epo administration. While Epo markedly enhanced the proliferation and reduced apoptosis of Epo-dependent UT-7/Epo leukemia cells, it did not affect tumor cell proliferation or the cisplatin-induced apoptosis of NSCLC cells. Thus, this in vitro study suggests that there are no tumor-promoting effects of Epo in the NSCLC cell lines studied, neither under normoxic nor under hypoxic conditions. PMID- 29345290 TI - Role of nestin expression in angiogenesis and breast cancer progression. AB - Nestin is an intermediate filament protein and a stem cell marker expressed in several tumours. There is growing evidence of an association between the expression level of nestin and the pathogenesis of triple-negative breast cancer (TNBC). Nestin is also expressed in newly forming tumour vessels and is a valuable marker of ongoing angiogenesis. In this study, we aimed to evaluate the prognostic value of nestin expression in breast tumour cells and to determine whether this expression influences angiogenesis. Immunohistochemical (IHC) analyses were carried out on 124 cases of invasive ductal carcinoma (IDC) of the breast with a panel of murine monoclonal antibodies against nestin, CD31, CD34, SOX-18 and Ki-67. We evaluated nestin expression in tumour and endothelial cells, Ki-67 in tumour cells, and CD31, CD34 and SOX-18 in endothelial cells. Our results demonstrated that nestin expression in tumour cells correlated with the area and number of vessels expressing nestin, CD31, CD34 and SOX-18. We also found a positive correlation between nestin-expressing vessels and SOX-18 expressing vessels. Our results are consistent with those of previous studies, in which nestin expression in endothelial cells was shown to be strongly associated with triple-negative subtype, poorly differentiated G3 tumours, a higher proliferation index and a shorter overall survival. Nestin expression was also examined in human breast cancer cell lines (MCF-7, SK-BR-3, MDA-MB-231 and BO2 cells) representing a different level of tumour aggressiveness and reflecting histological grade. A higher nestin protein level was observed in more aggressive MDA-MB-231 and BO2 cells than in MCF-7 and SK-BR-3 cells. PMID- 29345291 TI - MicroRNA-1271 functions as a metastasis and epithelial-mesenchymal transition inhibitor in human HCC by targeting the PTP4A1/c-Src axis. AB - MicroRNAs (miRNAs or miRs) have been shown to regulate hepatocellular carcinoma (HCC) metastasis. In the present study, we focused on the functions of miR-1271 in HCC metastasis. The downregulation of miR-1271 was found to be associated with to venous infiltration, an advanced TNM stage (III+IV stage) and a shorter survival time. Our in vitro and in vivo data demonstrated that miR-1271 prevented HCC cell migration and invasion, as well as the formation of lung metastatic clusters. In addition, miR-1271 was demonstrated to markedly inhibit the epithelial-mesenchymal transition (EMT) of HCC cells. Importantly, protein tyrosine phosphatase type IVA member 1 (PTP4A1) was identified as a direct downstream target of miR-1271 in HCC. Furthermore, we confirmed that the phosphorylation of c-Src at Tyr416 mediated by PTP4A1 was a potential anti-HCC mechanism of action of miR-1271. On the whole, our data indicate that miR-1271 inhibits HCC metastasis by targeting the PTP4A1/c-Src signaling pathway and may serve as a prospective cancer therapeutic target for HCC. PMID- 29345292 TI - Preparation and characterization of the antibody recognizing AMACR inside its catalytic center. AB - Alpha-methylacyl-CoA racemase (AMACR) catalyzes the beta-oxidation of fatty acids and is overexpressed in carcinomas in various organs, while its inactivation results in the inhibition of cancer growth. In the present study, we prepared and characterized 20 different mouse monoclonal antibodies against human AMACR. In the course of biopanning of a phage peptide commercial library against in-house prepared 6H9 and 2A5, and commercial 13H4 antibodies, 10 phage mimotopes recognized by each type of the antibody were selected. Using the program Pepitope and the crystal structure of AMACR from Mycobacterium tuberculosis, we reveal for the first time, at least to the best of our knowledge, that the epitopes recognizing the antibody against AMACR are composed of conformation sequences localized inside the AMACR catalytic center. When delivered into live HeLa cells using cationic lipid-based PULSin reagent, the specific antibodies against AMACR were co-localized with peroxisomes. The in-house made 6H9 antibody exhibited a low level of this co-localization compared to the commercially available 63340 antibody, and did not inhibit the growth rate of HeLa and T98G cells. The results obtained suggest that antibody against AMACR may possess anti-AMACR catalytic activity and needs to be further investigated as a potential drug for use in anticancer therapy. On the whole, in this study, we generated several clones of AMACR antibodies and demonstrated that these antibodies can be colonized into live cells. Currently, we are testing the growth inhibitory properties of these antibodies against AMACR. PMID- 29345293 TI - S100B expression in breast cancer as a predictive marker for cancer metastasis. AB - In the tumor microenvironment, soluble molecules play important role in the establishment of a pre-metastatic niche. The S100 calcium-binding protein family are inflammatory molecules that contribute to the development of a pro inflammatory tumor microenvironment. S100B belongs to the S100 family and serum S100B (also known as S100beta) serves as a marker for metastasis in lung cancer, ovarian cancer and melanoma. However, the association between S100B and the metastasis of breast cancer is not yet well understood. In the present study, a relatively low S100B expression was observed in the tumor samples compared to normal breast tissue among online microarray datasets. When the estrogen receptor (ER)-negative breast cancer cell lines, MDA-MB-231 and Hs578T, were treated with recombinant human S100B, cell migration was significantly inhibited and epithelial cadherin expression was increased. Our results revealed that a high S100B expression predicted a good overall survival in patients with ER-negative breast cancer, and good distant metastases-free survival in all patients with breast cancer via the analysis of the KM plotter and SurvExpress databases. Although previous studies have indicated that the interaction of S100B with wild type p53 inhibits p53 function, a high S100B expression is associated with a good prognosis in patients with p53 mutant and p53 wild-type breast cancers. On the whole, our findings demonstrate that S100B treatment suppresses the migratory capacity of ER-negative breast cancer and that S100B expression may serve a predictive marker for metastasis in breast cancer. PMID- 29345294 TI - Hypoxia stimulates the cytoplasmic localization of oncogenic long noncoding RNA LINC00152 in colorectal cancer. AB - Recent studies have indicated that long noncoding RNAs (lncRNAs) play a pivotal role in almost all physiological cellular processes, including every stage of cancer development. Given that hypoxia in the tumor microenvironment is involved in the malignant behavior of tumors, such as invasion and metastasis, we investigated the cytoplasmic and nuclear localization of lncRNAs in colorectal cancer cells. A cell culture under hypoxic conditions revealed several lncRNAs, such as LINC00152, whose levels were increased in the cytoplasm of colorectal cancer cells. A database study indicated that LINC00152 shares microRNA-binding sites, such as miR-138 and miR-193, with the hypoxia-inducible factor 1 (HIF1), thus suggesting that LINC00152 could possibly function as a competing endogenous RNA that can augment Hif1 translation in the cytoplasm of hypoxic colorectal cancer cells. Moreover, the data presented in the studies of surgically resected samples showed that patients with colorectal cancer exhibiting high LINC00152 expression were associated with a worsened survival rate; this supports the suggested oncogenic function of LINC00152 in the cytoplasm under hypoxic conditions. The present study demonstrated that lncRNA networks could provide diagnostic tools and novel therapeutic targets against colorectal cancer cells. PMID- 29345295 TI - Upregulation of the BDNF/TrKB pathway promotes epithelial-mesenchymal transition, as well as the migration and invasion of cervical cancer. AB - Brain-derived neurotrophic factor (BDNF) has previously been demonstrated to be associated with several types of cancer. In addition, its receptor, tropomyosin related kinase B (TrkB) is involved in tumor invasion and metastasis. Epithelial mesenchymal transition (EMT) is associated with metastasis in cancers. Thus, The aim of the present study was to examine whether BDNF/TrKB expression is linked to a poor survival and the acquisition of the EMT phenotype in cervical cancer. We found that a high positive expression of BDNF/TrKB was associated with poor survival in cervical cancer. Our results revealed that high expression levels of BDNF/TrKB were observed in cervical cancer compared to normal cells. Importantly, we demonstrated that the silencing of TrKB suppressed the activation of EMT via the downregulation of N-cadherin, vimentin, matrix metalloproteinase (MMP)2 and MMP9, and the upregulation of E-cadherin and tissue inhibitor of metalloproteinases (TIMP)2, which resulted in suppressed cell proliferation, migration and invasion. Furthermore, high phosphorylation levels of ERK and Akt were observed in the cervical cancer cells, while these levels were decreased in the cells in which TrKB was knocked down. On the whole, these findings suggest that the BDNF/TrKB pathway is a promising target for the prevention of tumor proliferation, invasion, metastasis and EMT in cervical cancer cells. PMID- 29345297 TI - miR-135b-5p promotes gastric cancer progression by targeting CMTM3. AB - CKLF-like MARVEL transmembrane domain containing 3 (CMTM3) is considered to be a tumor suppressor gene in multiple types of malignancies. Previous studies have indicated that CMTM3 suppresses metastasis and epithelial-mesenchymal transition (EMT) in gastric cancer. However, its role in gastric cancer cell proliferation has rarely been discussed. Moreover, the regulatory mechanisms of CMTM3 in gastric cancer remain unclear. In this study, RT-qPCR and IHC were used to assess the expression of CMTM3 and miR-135b-5p in gastric cancer tissues and cell lines. We found that the expression of miR-135b-5p was negatively associated with CMTM3 in gastric cancer tissues, and we verified that miR-135b-5p directly targeted CMTM3 in gastric cancer cells by dual-luciferase reporter assay. CCK8 assay, Transwell assay and flow cytometric analysis were conducted to examine the functions of CMTM3 and miR-135b-5p in vitro. Our results demonstrated that the overexpression of CMTM3 or the suppression of miR-135b-5p using an inhibitor suppressed SGC-7901 gastric cancer cell proliferation, invasion and cell cycle progression, and promoted SGC-7901 cell apoptosis. Furthermore, a BALB/c nude mouse subcutaneous xenograft model was used to verify the function of miR-135b-5p and CMTM3. Our results revealed that miR-135b-5p inhibitor significantly suppressed SGC-7901 cell tumorigenesis in vivo. In addition, IHC revealed that CMTM3 expression was markedly increased in tumors infected with miR-135b-5p inhibitor lentivirus. On the whole, the findings of the present study suggest that the overexpression of miR-135b-5p inhibits CMTM3 expression, and promotes gastric cancer progression and metastasis. Our findings provide a novel therapeutic target for gastric cancer. PMID- 29345298 TI - Leishmania amazonensis isolated from human visceral leishmaniasis: histopathological analysis and parasitological burden in different inbred mice. AB - Leishmania amazonensis is a major etiological agent of human cutaneous leishmaniasis in the Americas; nevertheless there are some reports of this species causing visceral disease in dogs and men. In the present work we have studied a Leishmania strain isolated from a human case of visceral leishmaniasis. We have infected different mouse strains and analyzed the development of the disease, studying the parasite's ability to visceralize and whether this ability is influenced by host genetics. Female BALB/c, C57BL/6, C57BL/10, CBA, DBA/2, and C3H/He mice were subcutaneously infected with 104 L. amazonensis amastigotes. BALB/c, C57BL/6 and C57BL/10 mice were found to be very susceptible to infection, showing lesions that developed to necrosis and ulceration. CBA mice developed a late but severe lesion. DBA/2 mice developed only discrete lesions, while C3H/He mice did not develop any lesions. All mouse strains except C3H/He showed some degree of visceralization, presenting parasites in the spleen, while BALB/c, C57BL/6 and CBA presented parasites also in the liver. Moreover, most of the strains presented high parasite load at the infection site, whereas DBA and C3H/He mice showed low or no parasite load 90 days after infection, respectively. Histopathology corroborates the results, showing that susceptible mice presented an inflammatory reaction with parasites in the skin, lymph nodes and spleen, while strains that are more resistant presented low parasitism and discrete inflammatory reaction. Results indicate that this isolate is extremely virulent, can easily visceralize and that the pathogenesis of leishmaniasis is, at least in part, related to the genetic background of the host. PMID- 29345299 TI - The continuing misuse of null hypothesis significance testing in biological anthropology. AB - There is over 60 years of discussion in the statistical literature concerning the misuse and limitations of null hypothesis significance tests (NHST). Based on the prevalence of NHST in biological anthropology research, it appears that the discipline generally is unaware of these concerns. The p values used in NHST usually are interpreted incorrectly. A p value indicates the probability of the data given the null hypothesis. It should not be interpreted as the probability that the null hypothesis is true or as evidence for or against any specific alternative to the null hypothesis. P values are a function of both the sample size and the effect size, and therefore do not indicate whether the effect observed in the study is important, large, or small. P values have poor replicability in repeated experiments. The distribution of p values is continuous and varies from 0 to 1.0. The use of a cut-off, generally p <= 0.05, to separate significant from nonsignificant results, is an arbitrary dichotomization of continuous variation. In 2016, the American Statistical Association issued a statement of principles regarding the misinterpretation of NHST, the first time it has done so regarding a specific statistical procedure in its 180-year history. Effect sizes and confidence intervals, which can be calculated for any data used to calculate p values, provide more and better information about tested hypotheses than p values and NHST. PMID- 29345296 TI - Vitamin D derivatives potentiate the anticancer and anti-angiogenic activity of tyrosine kinase inhibitors in combination with cytostatic drugs in an A549 non small cell lung cancer model. AB - Numerous in vitro and in vivo studies have demonstrated that calcitriol [1,25(OH)2D3] and different vitamin D analogs possess antineoplastic activity, regulating proliferation, differentiation and apoptosis, as well as angiogenesis. Vitamin D compounds have been shown to exert synergistic effects when used in combination with different agents used in anticancer therapies in different cancer models. The aim of this study was to evaluate the mechanisms of the cooperation of the vitamin D compounds [1,24(OH)2D3 (PRI-2191) and 1,25(OH)2D3] with tyrosine kinase inhibitors (imatinib and sunitinib) together with cytostatics (cisplatin and docetaxel) in an A549 non-small cell lung cancer model. The cytotoxic effects of the test compounds used in different combinations were evaluated on A549 lung cancer cells, as well as on human lung microvascular endothelial cells (HLMECs). The effects of such combinations on the cell cycle and cell death were also determined. In addition, changes in the expression of proteins involved in cell cycle regulation, angiogenesis and the action of vitamin D were analyzed. Moreover, the effects of 1,24(OH)2D3 on the anticancer activity of sunitinib and sunitinib in combination with docetaxel were examined in an A549 lung cancer model in vivo. Experiments aiming at evaluating the cytotoxicity of the combinations of the test agents revealed that imatinib and sunitinib together with cisplatin or docetaxel exerted potent anti-proliferative effects in vitro on A549 lung cancer cells and in HLMECs; however, 1,24(OH)2D3 and 1,25(OH)2D3 enhanced the cytotoxic effects only in the endothelial cells. Among the test agents, sunitinib and cisplatin decreased the secretion of vascular endothelial growth factor (VEGF)-A from the A549 lung cancer cells. The decrease in the VEGF-A level following incubation with cisplatin correlated with a higher p53 protein expression, while no such correlation was observed following treatment of the A549 cells with sunitinib. Sunitinib together with docetaxel and 1,24(OH)2D3 exhibited a more potent anticancer activity in the A549 lung cancer model compared to double combinations and to treatment with the compounds alone. The observed anticancer activity may be the result of the influence of the test agents on the process of tumor angiogenesis, for example, through the downregulation of VEGF-A expression in tumor and also on the induction of cell death inside the tumor. PMID- 29345300 TI - Angiosarcoma following treatment of basal cell carcinoma: a report of two cases. PMID- 29345301 TI - Diphenylcyclopropenone-induced psoriatic koebnerization. PMID- 29345302 TI - Body mass prediction from femoral volume and sixteen other femoral variables in the elderly: BMI and adipose tissue effects. AB - OBJECTIVES: The frequently used prediction equations of body mass do not seem appropriate for elderly individuals. Here, we establish the relationship between femoral dimensions and known body mass in elderly individuals in order to develop prediction formulas and identify the factors affecting their accuracy. MATERIALS AND METHODS: The body mass linear least-squares regression is based on 17 femoral dimensions, including femoral volume, and 66 individuals. Body proportion and composition effects on accuracy are analyzed by means of the body mass index (BMI) and on a subset sample (n = 25), by means of the masses of adipose, bone and muscle tissues. RESULTS: Most variables significantly reflect body mass. Among them, six dimensions (e.g., biepicondylar breadth, femoral volume, and head femoral diameter) present percent standard errors of estimate ranging from 9.5 to 11% (r = 0.72-0.81) in normal BMI samples. Correlations are clearly lower in samples with normal and abnormal BMI [r = 0.38-0.58; % of standard error of estimate (SEE) = 17.3-19.6%] and not significantly correlated in females (femoral volume) who present high proportions of abnormal BMI and adipose tissue. In the subset, femoral volume is well correlated with bone mass (r = 0.88; %SEE = 7.9%) and lean body mass (r = 0.67; %SEE = 17.2%). DISCUSSION: Our body mass estimation equations for elderly individuals are relevant since relatively low correlations are recurrent in studies using younger individuals of known body mass. However, age, sex, lifestyle, and skeleton considerations of studied populations can provide information about the relevance of the body mass estimation, which is dependent on the BMI classification and the proportion of adipose tissue. Our general considerations can be used for studies of younger individuals. PMID- 29345303 TI - Divided nevus of the penis. PMID- 29345304 TI - Toward more robust plant-soil feedback research. AB - Understanding if and how plant-soil biota feedbacks (PSFs) shape plant communities has become a major research priority. In this paper, we draw on a recent, high-profile PSF study to illustrate that certain widely used experimental methods cannot reliably determine if PSFs occur. One problem involves gathering soil samples adjacent to multiple conditioning plants, mixing the samples and then growing phytometers in the mixtures to test for PSFs. This mixed soil approach does not establish that the conditioning plant being present caused the soil biota to be present, the first step of a PSF. Also, soil mixing approximates replacing raw data with averages prior to analysis, a move certain to generate falsely precise statistical estimates. False precision also results from sample sizes being artificially inflated when phytometers are misinterpreted as experimental units. Plant biomass ratios become another source of false precision when individual plant values contribute to multiple ratio observations. Any one of these common missteps can cause still living null hypotheses to be pronounced dead, and risks of this increase with numbers of missteps. If soil organisms truly structure plant communities, then null hypotheses indicating otherwise will not survive proper testing. We discuss conceptual, experimental and analytical refinements to facilitate accurate testing. PMID- 29345305 TI - Detection of mitochondrial haplogroups in a small avar-slavic population from the eigth-ninth century AD. AB - OBJECTIVES: In the sixth century AD, Avars came to Central Europe from middle Eurasian steppes and founded a strong Empire called the Avar Khagante (568 799/803 AD) in the Pannonian basin. During the existence of this empire, they undertook many military and pugnacious campaigns. In the seventh century, they conquered the northern territory inhabited by Slavs, who were further recruited in Avar military and were commissioned with obtaining food supplies. During almost 200 years of Avar domination, a significant influence by the Avar culture (especially on the burial rite) and assimilation with indigenous population (occurrence of "East Asian"cranial features) could be noticed in this mixed area, which is supported by achaeological and anthropologcal research. Therefore we expected higher incidence of east Eurasian haplogroups (introduced by Avars) than the frequencies detected in present-day central European populations. MATERIALS AND METHODS: Mitochondrial DNA from 62 human skeletal remains excavated from the Avar-Slavic burial site Cifer-Pac (Slovakia) dated to the eighth and ninth century was analyzed by the sequencing of hypervariable region I and selected parts of coding region. Obtained haplotypes were compared with other present-day and historical populations and genetic distances were calculated using standard statistical method. RESULTS AND DISCUSSION: In total, the detection of mitochondrial haplogroups was possible in 46 individuals. Our results prooved a higher frequency of east Eurasian haplogroups in our analyzed population (6.52%) than in present-day central European populations. However, it is almost three times lower than the frequency of east Eurasian haplogroups detected in other medieval Avar populations. The statistical analysis showed a greater similarity and the lowest genetic distances between the Avar-Slavic burial site Cifer-Pac and medieval European populations than the South Siberian, East and Central Asian populations. CONCLUSION: Our results indicate that the transfer of Avar genetic variation through their mtDNA was rather weak in the analyzed mixed population. PMID- 29345306 TI - Hypoalbuminaemia segregates different prognostic subgroups within the refined standard risk acute graft-versus-host disease score. AB - Hypoalbuminaemia has been previously described to predict worse non-relapse mortality (NRM) and inferior overall survival (OS) in allogeneic haematopoietic cell transplant (allo-HCT) recipients. Here, we evaluate the role of hypoalbuminaemia (<35 g/l) at time of onset of acute graft-versus-host disease (aGVHD) when incorporated into the refined aGVHD score. The study population consisted of 522 patients, median age 53 (18-75) years, who underwent an allo-HCT mostly for haematological malignancies. Standard risk (SR) aGVHD comprised 467 patients (89%) and the number of high risk (HR) cases was 55 (11%). Median follow up for all surviving patients was 26 (3-55) months. Two-year OS was significantly better in patients with SR aGVHD with a serum albumin >=35 g/l compared to SR with albumin <35 g/l [70% (95% CI = 64-76%) vs. 49% (95% CI = 42-56%), P < 0.0001]. Also, patients with SR aGVHD and a serum albumin level of >=35 g/l had a significantly lower NRM at 1-year post-transplantation [6% (95% CI = 3-10%) vs. 25% (95% CI = 20-32%), P < 0.0001]. After our findings are validated in a large cohort of patients, we propose that hypoalbuminaemia should be incorporated into the refined aGVHD risk score to further its ability to predict outcomes within this group. PMID- 29345307 TI - Competitive ability, stress tolerance and plant interactions along stress gradients. AB - Exceptions to the generality of the stress-gradient hypothesis (SGH) may be reconciled by considering species-specific traits and stress tolerance strategies. Studies have tested stress tolerance and competitive ability in mediating interaction outcomes, but few have incorporated this to predict how species interactions shift between competition and facilitation along stress gradients. We used field surveys, salt tolerance and competition experiments to develop a predictive model interspecific interaction shifts across salinity stress gradients. Field survey and greenhouse tolerance tests revealed tradeoffs between stress tolerance and competitive ability. Modeling showed that along salinity gradients, (1) plant interactions shifted from competition to facilitation at high salinities within the physiological limits of salt intolerant plants, (2) facilitation collapsed when salinity stress exceeded the physiological tolerance of salt-intolerant plants, and (3) neighbor removal experiments overestimate interspecific facilitation by including intraspecific effects. A community-level field experiment, suggested that (1) species interactions are competitive in benign and, facilitative in harsh condition, but fuzzy under medium environmental stress due to niche differences of species and weak stress amelioration, and (2) the SGH works on strong but not weak stress gradients, so SGH confusion arises when it is applied across questionable stress gradients. Our study clarifies how species interactions vary along stress gradients. Moving forward, focusing on SGH applications rather than exceptions on weak or nonexistent gradients would be most productive. PMID- 29345308 TI - Positive size-speed relationships in gametes and vegetative cells of Chlamydomonas reinhardtii; implications for the evolution of sperm. AB - It is commonly held that differences in gametes of the two sexes (anisogamy) evolved from ancestors whose gametes were similar in size and behavior (isogamy). Underlying many hypotheses explaining anisogamy are assumed relationships between cell size and speed in the ancestral isogamous population. Using the isogamous alga Chlamydomonas reinhardtii, we explored size-speed distributions in vegetative and gamete cells of 10 cell lines, and clonal data from within two cell lines. We applied an independent speed selection approach to gamete populations of C. reinhardtii, monitoring correlated responses in size following selection for high speed. We demonstrate positive size-speed relationships in clones, cell lines, and artificially selected speed selection lines. We found different size-speed relationships in the two cell types of C. reinhardtii even though they overlap in size, suggesting that cell composition and/or programs of gene expression are capable of altering this relationship, and that the relationship is evolvable. The positive genetic size-speed correlation means that the division of parent vegetative cells into numerous gametes trades off against not only size, but also speed, a trade-off that has not received previous attention. Our results support reevaluating the role of speed selection in the evolution of anisogamy. PMID- 29345309 TI - Microbial mitigation-exacerbation continuum: a novel framework for microbiome effects on hosts in the face of stress. AB - A key challenge to understanding microbiomes and their role in ecological processes is contextualizing their effects on host organisms, particularly when faced with environmental stress. One influential theory, the Stress Gradient Hypothesis, might predict that the frequency of positive interactions increases with stressful conditions such that microbial taxa would mitigate harmful effects on host performance. Yet, equally plausible is that microbial taxa could exacerbate these effects. Here, we introduce the Mitigation-Exacerbation Continuum as a novel framework to conceptualize microbial mediation of stress. We (1) use this continuum to quantify microbial mediation of stress for six plant species and (2) test the association between these continuum values and natural species' abundance. We factorially manipulated a common stress (allelopathy) and the presence of soil microbes to quantify microbial effects in benign and stressed environments for two critical early life-history metrics, seed germination and seedling biomass. Although we found evidence of both mitigation and exacerbation among the six species, exacerbation was more common. Across species, the degree of microbial-mediated effects on germination explained >80% of the variation of natural field abundances. Our results suggest a critical role of soil microbes in mediating plant stress responses, and a potential microbial mechanism underlying species abundance. PMID- 29345310 TI - A potential role of knockout serum replacement as a porcine follicular fluid substitute for in vitro maturation: Lipid metabolism approach. AB - The use of supplements, such as porcine follicular fluid (pFF), fetal bovine serum and human serum albumin are widely used during in vitro maturation (IVM) in different species but these supplements contain undefined components that cause technical difficulties in standardization and influence the efficiency of IVM. Knockout serum replacement (KSR) is a synthetic protein source, without any undefined growth factors or differentiation-promoting factors. Therefore, it is feasible to use KSR as a defined component for avoiding effects of unknown molecules in an IVM system. In this study, the rates of oocyte maturation and blastocyst formation after parthenogenetic activation (PA), somatic cell nuclear transfer (SCNT) and in vitro fertilization (IVF) were significantly higher in the 5% KSR supplemented group than in the unsupplemented control group and more similar to those of the 10% pFF supplemented group. Moreover, the intensity of GDF9, BMP15, ROS, GSH, BODIPY-LD, BODIPY-FA, and BODIPY-ATP staining showed similar values between 5% KSR and 10% pFF, which have significant difference with control group. Most of the gene expression related to lipid metabolism with both supplements exhibited similar patterns. In conclusion, 5% KSR upregulated lipid metabolism and thereby provides an essential energy source to sustain and improve oocyte quality and subsequent embryo development after PA, SCNT, and IVF. These indications support the idea that KSR used as a defined serum supplement for oocyte IVM might be universally used in other species. PMID- 29345311 TI - Calcium-sensing receptor activates the NLRP3 inflammasome in LS14 preadipocytes mediated by ERK1/2 signaling. AB - The study of the mechanisms that trigger inflammation in adipose tissue is key to understanding and preventing the cardiometabolic consequences of obesity. We have proposed a model where activation of the G protein-coupled calcium sensing receptor (CaSR) leads to inflammation and dysfunction in adipose cells. Upon activation, CaSR can mediate the expression and secretion of proinflammatory factors in human preadipocytes, adipocytes, and adipose tissue explants. One possible pathway involved in CaSR-induced inflammation is the activation of the NLR family, pyrin domain-containing 3 (NLRP3) inflammasome, that promotes maturation and secretion of interleukin (IL)-1beta. The present work aimed to study whether CaSR mediates the activation of NLRP3 inflammasome in the human adipose cell model LS14. We assessed NLRP3 inflammasome priming and assembly after cinacalcet-induced CaSR activation and evaluated if this activation is mediated by downstream ERK1/2 signaling in LS14 preadipocytes. Exposure to 2 MUM cinacalcet elevated mRNA expression of NLRP3, CASP-1, and IL-1beta, as well as an increase in pro-IL-1beta protein. In addition, CaSR activation triggered NLRP3 inflammasome assembly, as evidenced by a 25% increase in caspase-1 activity and 63% IL-1beta secretion. CaSR silencing (siRNA) abolished the effect. Upstream ERK pathway inhibition decreased cinacalcet-dependent activation of NLRP3 inflammasome. We propose CaSR-dependent NLRP3 inflammasome activation in preadipocytes through ERK signaling as a novel mechanism for the development of adipose dysfunction, that may favor the cardiovascular and metabolic consequences of obesity. To the best of our knowledge, this is the first report linking the inflammatory effect of CaSR to NLRP3 inflammasome induction in adipose cells. PMID- 29345312 TI - Phylogenetic patterns of trait and trait plasticity evolution: Insights from amphibian embryos. AB - Environmental variation favors the evolution of phenotypic plasticity. For many species, we understand the costs and benefits of different phenotypes, but we lack a broad understanding of how plastic traits evolve across large clades. Using identical experiments conducted across North America, we examined prey responses to predator cues. We quantified five life-history traits and the magnitude of their plasticity for 23 amphibian species/populations (spanning three families and five genera) when exposed to no cues, crushed-egg cues, and predatory crayfish cues. Embryonic responses varied considerably among species and phylogenetic signal was common among the traits, whereas phylogenetic signal was rare for trait plasticities. Among trait-evolution models, the Ornstein Uhlenbeck (OU) model provided the best fit or was essentially tied with Brownian motion. Using the best fitting model, evolutionary rates for plasticities were higher than traits for three life-history traits and lower for two. These data suggest that the evolution of life-history traits in amphibian embryos is more constrained by a species' position in the phylogeny than is the evolution of life history plasticities. The fact that an OU model of trait evolution was often a good fit to patterns of trait variation may indicate adaptive optima for traits and their plasticities. PMID- 29345313 TI - A microfluidic chip with a staircase pH gradient generator, a packed column and a fraction collector for chromatofocusing of proteins. AB - A microfluidic device for pH gradient chromatofocusing is presented, which performs creation of a micro-column, pH gradient generation, and fraction collection in a single device. Using a sieve micro-valve, anion exchange particles were packed into a microchannel in order to realize a solid-phase absorption column. To fractionate proteins according to their isoelectric points, elution buffer solutions with a stepwise pH gradient were prepared in 16 parallel mixing reactors and flowed through the micro-column, wherein a protein mixture was previously loaded. The volume of the column is only 20 nL, hence it allows extremely low sample consumption and fast analysis compared with a conventional system. We demonstrated separation of two proteins, albumin-fluorescein isothiocyanate conjugate (FITC-BSA) and R-Phycoerythrin (R-PE), by using a microcolumn of commercial charged polymeric particles (Source 15Q). The microfluidic device can be used as a rapid diagnostic tool to analyse crude mixtures of proteins or nucleic acids and determine adsorption/desorption characteristics of various biochemical products, which can be helpful for scientific fundamental understanding as well as instrumental in various industrial applications, especially in early stage screening and process development. PMID- 29345314 TI - The prevalence and distribution of sheep scab in Wales: a farmer questionnaire survey. AB - Outbreaks of ovine psoroptic mange in the U.K. have increased 100-fold since its deregulation in 1992, with the highest prevalence in Wales, a region of high sheep density. A cross-sectional, retrospective, questionnaire-based survey of 7500 members of the association of Welsh lamb and beef farmers [Welsh Lamb and Beef Producers Ltd (WLBP)] was used to investigate the prevalence and distribution of sheep scab in this region in 2015. The survey was completed by 14.0% (n = 972) of potential respondents. Scab outbreaks were reported on 15.8% (n = 154) of farms in 2015. However, 29.0% (n = 282) of farms reported at least one scab outbreak and 2.4% (n = 23) of farms had experienced between six and 10 outbreaks in the previous 10 years. Most outbreaks occurred during September January (83.0%, n = 150), and were clustered around Brecon (mid-Wales) and Bangor (North Wales). Farmers who used common grazing were significantly more likely to report scab outbreaks in the previous 10 years than farmers who did not. No quarantine procedures for sheep bought in were used by 29.0% (n = 262) of farmers. Future research should be directed towards the development of localized management programmes, with a particular focus on areas of common grazing. PMID- 29345315 TI - Chlorophyll fluorescence induction and relaxation system for the continuous monitoring of photosynthetic capacity in photobioreactors. AB - The development of high-performance photobioreactors equipped with automatic systems for non-invasive real-time monitoring of cultivation conditions and photosynthetic parameters is a challenge in algae biotechnology. Therefore, we developed a chlorophyll (Chl) fluorescence measuring system for the online recording of the light-induced fluorescence rise and the dark relaxation of the flash-induced fluorescence yield (Qa- - re-oxidation kinetics) in photobioreactors. This system provides automatic measurements in a broad range of Chl concentrations at high frequency of gas-tight sampling, and advanced data analysis. The performance of this new technique was tested on the green microalgae Chlamydomonas reinhardtii subjected to a sulfur deficiency stress and to long-term dark anaerobic conditions. More than thousand fluorescence kinetic curves were recorded and analyzed during aerobic and anaerobic stages of incubation. Lifetime and amplitude values of kinetic components were determined, and their dynamics plotted on heatmaps. Out of these data, stress-sensitive kinetic parameters were specified. This implemented apparatus can therefore be useful for the continuous real-time monitoring of algal photosynthesis in photobioreactors. PMID- 29345316 TI - Histopathological findings in pregnancy associated cutaneous hyperpigmentation. AB - Hyperpigmentation in pregnancy is a common phenomenon, experienced to some degree by up to 90% of pregnant women. It mainly involves sun-exposed areas, but it can extend to non-exposed zones. Cases with extensive hyperpigmentation are rarely reported. In this paper, we describe the case of a 30-year-old phototype V woman in her 37th week of pregnancy, who presented with brownish hyperpigmentation of the skin in extensive areas, including both axillae, the abdomen and the lowest part of the back. In the abdomen, there was a reinforcement of the hyperpigmentation through the linea nigra and the umbilicus. The hyperpigmentation affected the buttocks as well and involved the intertriginous area between them. Histopathologic analysis showed a hyperpigmented basal layer of the epidermis with no melanocytic atypia or melanocytic nests. Histochemical staining for iron did not show any deposits. Immunohistochemical studies for HMB 45, Melan A and SOX10 demonstrated an increased number of melanocytes. There was hyperpigmentation of basal layer keratinocytes. We also performed immunohistochemical stains for estrogen and progesterone receptors, which were both negative. The patient was examined 3 months after delivery, evidencing a significant clearing of the lesions. PMID- 29345317 TI - An orientation-independent DIC microscope allows high resolution imaging of epithelial cell migration and wound healing in a cnidarian model. AB - Epithelial cell dynamics can be difficult to study in intact animals or tissues. Here we use the medusa form of the hydrozoan Clytia hemisphaerica, which is covered with a monolayer of epithelial cells, to test the efficacy of an orientation-independent differential interference contrast microscope for in vivo imaging of wound healing. Orientation-independent differential interference contrast provides an unprecedented resolution phase image of epithelial cells closing a wound in a live, nontransgenic animal model. In particular, the orientation-independent differential interference contrast microscope equipped with a 40x/0.75NA objective lens and using the illumination light with wavelength 546 nm demonstrated a resolution of 460 nm. The repair of individual cells, the adhesion of cells to close a gap, and the concomitant contraction of these cells during closure is clearly visualized. PMID- 29345318 TI - Retrospective study on midfacial advancement in syndromic craniosynostosis: case series. AB - AIMS: The aim of this study was to evaluate elastic distraction surgical procedures performed on patients with syndromic craniosynostosis using cephalometric analyses. METHODS: Eleven patients who underwent surgical midfacial advancement were divided into three groups: G1 - monobloc frontofacial; G2 - Le Fort III; and G3 - high-level Le Fort I. The cephalometric analyses were manually created through cephalometric radiographs of each patient: T1 - preoperative; T2 6 months postoperatively; and T3 - 12 months postoperatively. The cephalometric landmark points were A and O. The distances between preoperative and postoperative tracings were measured. RESULTS: Point A advanced with no significant relapse 12 months after surgery. Point O advanced with a significant relapse rate of 28.5% postoperatively (p = 0.019). The vertical movement of points A and O increased by 40.6% (p = 0.033) and 38.8% (p = 0.032), respectively. There were no significant statistical differences between the assessed surgical techniques and syndromes with regard to midfacial advancement. CONCLUSION: Point O has presented statistically significant relapse only in horizontal movement after 12 months. The cephalometric analysis performed in the present study only suggested no differences between the studied surgical techniques and syndromes with regard to midfacial advancement in syndromic craniosynostosis. PMID- 29345320 TI - Dental local anesthesia for patients with pseudocholinesterase deficiency. PMID- 29345319 TI - Endothelial cells enhance adipose mesenchymal stromal cell-mediated matrix contraction via ALK receptors and reduced follistatin: Potential role of endothelial cells in skin fibrosis. AB - Abnormal cutaneous wound healing can lead to formation of fibrotic hypertrophic scars. Although several clinical risk factors have been described, the cross-talk between different cell types resulting in hypertrophic scar formation is still poorly understood. The aim of this in vitro study was to investigate whether endothelial cells (EC) may play a role in skin fibrosis, for example, hypertrophic scar formation after full-thickness skin trauma. Using a collagen/elastin matrix, we developed an in vitro fibrosis model to study the interaction between EC and dermal fibroblasts or adipose tissue-derived mesenchymal stromal cells (ASC). Tissue equivalents containing dermal fibroblasts and EC displayed a normal phenotype. In contrast, tissue equivalents containing ASC and EC displayed a fibrotic phenotype indicated by contraction of the matrix, higher gene expression of ACTA2, COL1A, COL3A, and less secretion of follistatin. The contraction was in part mediated via the TGF-beta pathway, as both inhibition of the ALK4/5/7 receptors and the addition of recombinant follistatin resulted in decreased matrix contraction (75 +/- 11% and 24 +/- 8%, respectively). In conclusion, our study shows that EC may play a critical role in fibrotic events, as seen in hypertrophic scars, by stimulating ASC-mediated matrix contraction via regulation of fibrosis-related proteins. PMID- 29345321 TI - Good Practices for Observational Studies of Maternal Weight and Weight Gain in Pregnancy. PMID- 29345322 TI - Effect of substrate stiffness on hepatocyte migration and cellular Young's modulus. AB - Hepatic fibrosis progress accompanied by an unbalanced extracellular matrix (ECM) degradation and deposition leads to an increased tissue stiffness. Hepatocytes interplay with all intrahepatic cell populations inside the liver. However, how hepatocytes migration and cellular Young's modulus influenced by the substrate stiffness are not well understood. Here, we established a stiffness-controllable in vitro cell culture model by using a polyvinyl alcohol (PVA) hydrogel that mimicked the same physical stiffness as a fibrotic liver. Three levels of stiffness were used in our experiment that corresponded to the stiffness levels found in normal liver tissue (4.5 kPa), the early (19 kPa) and late stages (37 kPa) of fibrotic liver tissues. Cytoskeleton of hepatocyte was influenced by substrate stiffness. Soft substrate promoted the cellular migration and directionality. The cellular Young's modulus firstly increased and then decreased with increasing substrate stiffness. Integrin-beta1 and beta-catenin expression on cytomembrane were up-regulated and down-regulated with the increase of substrate stiffness, respectively. Our data not only suggested that hepatocytes were sensitive to substrate stiffness, but also suggested that there may be a potential relationship among substrate stiffness, cellular Young's modulus and the dynamic balance of integrin-beta1 and beta-catenin pathways. These results may provide us a new insight in mechanism investigation of mechano-dependent diseases, especially like fibrosis related diseases. PMID- 29345323 TI - Vernalization can regulate flowering time through microRNA mechanism in Brassica rapa. AB - Vernalization is an important process that regulates the floral transition in plants. MicroRNAs (miRNAs) are endogenous non-coding small RNA (sRNA) molecules that function in plant growth and development. Despite that miRNAs related to flowering have previously been characterized, their roles in response to vernalization in pak-choi (Brassica rapa ssp. chinensis) has never been studied. Here, two sRNA libraries from B. rapa leaves (vernalized and non-vernalized plants) were constructed and sequenced. Two hundred eight known and 535 novel miRNAs were obtained, of which 20 known and 66 new miRNAs were significantly differentially expressed and considered as vernalization-related miRNAs. The corresponding targets were predicted on the basic of sequence homology search. In addition, 11 miRNAs and eight targets were selected for real-time quantitative PCR to confirm their expression profiles. Functional annotation of targets using gene ontology and Kyoto encyclopedia of genes and genomes results suggested that most targets were significantly enriched in the hormone signaling pathway. Moreover, a decreased indole-3-acetic acid (IAA) and an increased GA3 hormone were detected after vernalization, indicating that the IAA and GA3 might response to vernalization. These results indicated that vernalization regulates flowering through microRNA mechanism by affecting endogenous hormone level in B. rapa. This study provides useful insights of promising miRNAs candidates involved in vernalization in B. rapa, and facilitates further investigation of the miRNA mediated molecular mechanisms of vernalization in B. rapa. PMID- 29345324 TI - Autocrine signals increase ovine mesenchymal stem cells migration through Aquaporin-1 and CXCR4 overexpression. AB - Sheep is a relevant large animal model that is frequently used to test innovative tissue engineering (TE) approaches especially for bone reconstruction. Mesenchymal stem cells (MSCs) are used in TE applications because they represent key component of adult tissue repair. Importantly, MSCs from different species show similar characteristics, which facilitated their application in translational studies using animal models. Nowadays, many researches are focusing on the use of ovine mesenchymal stem cells (oMSCs) in orthopedic preclinical settings for regenerative medicine purposes. Therefore, there is a need to amplify our knowledge on the mechanisms underlying the behaviour of these cells. Recently, several studies have shown that MSC function is largely dependent on factors that MSCs release in the environment, as well as, in conditioned medium (CM). It has been demonstrated that MSCs through autocrine and paracrine signals are able to stimulate proliferation, migration, and differentiation of different type of cells including themselves. In this study, we investigated the effects of the CM produced by oMSCs on oMSCs themselves and we explored the signal pathways involved. We observed that CM caused an enhancement of oMSC migration. Furthermore, we found that CM increased levels of two membrane proteins involved in cell migration, Aquaporin 1 (AQP1), and C-X-C chemokine receptor type 4 (CXCR4), and activated Akt and Erk intracellular signal pathways. In conclusion, taken together our results suggest the high potential of autologous CM as a promising tool to modulate behaviour of MSCs thus improving their use in therapeutically approaches. PMID- 29345325 TI - A new retrograde transillumination technique for videolaryngoscopic tracheal intubation. AB - This single-centre, prospective trial was designed to assess the efficacy of a new retrograde transillumination device called the 'Infrared Red Intubation System' (IRRIS) to aid videolaryngoscopic tracheal intubation. We included 40 adult patients, who were undergoing elective urological surgery under general anaesthesia. We assessed the ability to differentiate the transilluminated glottis from other structures and found a median (IQR [range]) larynx recognition time of 8 (5-14 [3-28]) s. The difference in laryngeal visibility on the screen between the deactivated vs. activated device expressed on a visual analogue scale was significant (6 (4-7 [2-10]) vs. 10 (8-10 [4-10]); p < 0.001). The number of laryngoscope insertions was 1 (1-2 [1-3]) and the device showed high values on a visual analogue scale ranging from 0 (lowest score) to 10 (highest score) for helpfulness (6 (5-7 [2-10])), credibility (10 (8-10 [5-10])) and ease of use (10 (9-10 [8-10])). Tracheal intubation with the system lasted 26 (16-32 [6-89]) s. No alternative technique of securing the airway was necessary. The lowest SpO2 during intubation was 98 (97-99 [91-100])%. We conclude that this method of retrograde transillumination can assist videolaryngoscopy. PMID- 29345326 TI - Live-Animal Imaging of Renal Function by Multiphoton Microscopy. AB - Intravital microscopy, microscopy of living animals, is a powerful research technique that combines the resolution and sensitivity found in microscopic studies of cultured cells with the relevance and systemic influences of cells in the context of the intact animal. The power of intravital microscopy has recently been extended with the development of multiphoton fluorescence microscopy systems capable of collecting optical sections from deep within the kidney at subcellular resolution, supporting high-resolution characterizations of the structure and function of glomeruli, tubules, and vasculature in the living kidney. Fluorescent probes are administered to an anesthetized, surgically prepared animal, followed by image acquisition for up to 3 hr. Images are transferred via a high-speed network to specialized computer systems for digital image analysis. This general approach can be used with different combinations of fluorescent probes to evaluate processes such as glomerular permeability, proximal tubule endocytosis, microvascular flow, vascular permeability, mitochondrial function, and cellular apoptosis/necrosis. (c) 2018 by John Wiley & Sons, Inc. PMID- 29345327 TI - Basics of Digital Microscopy. AB - Modern digital microscopy combines the equipment of classical light microscopy with a computerized imaging system. The technique comprises image formation by optics, image registration by a camera, and saving of image data in a computer file. This chapter describes limitations that are particular to each of these processes, including optical resolution, efficiency of image registration, characteristics of image file formats, and data management. Further suggestions are given which serve, in turn, to help construct a set of guidelines aimed at optimization of digital microscopic imaging. (c) 2018 by John Wiley & Sons, Inc. PMID- 29345328 TI - Lasers for Flow Cytometry: Current and Future Trends. AB - Lasers are the principal light sources for flow cytometers. Virtually all cytometers are equipped with at least one (and often many more) lasers. This unit covers the various types of lasers available and the qualities that make them suitable or unsuitable for use in flow cytometers. Also included is a discussion of future directions, particularly in the area of tunable laser development. Practical tips are provided for building multilaser cytometer systems. (c) 2018 by John Wiley & Sons, Inc. PMID- 29345329 TI - Generating Quantitative Cell Identity Labels with Marker Enrichment Modeling (MEM). AB - Multiplexed single-cell experimental techniques like mass cytometry measure 40 or more features and enable deep characterization of well-known and novel cell populations. However, traditional data analysis techniques rely extensively on human experts or prior knowledge, and novel machine learning algorithms may generate unexpected population groupings. Marker enrichment modeling (MEM) creates quantitative identity labels based on features enriched in a population relative to a reference. While developed for cell type analysis, MEM labels can be generated for a wide range of multidimensional data types, and MEM works effectively with output from expert analysis and diverse machine learning algorithms. MEM is implemented as an R package and includes three steps: (1) calculation of MEM values that quantify each feature's relative enrichment in the population, (2) reporting of MEM labels as a heatmap or as a text label, and (3) quantification of MEM label similarity between populations. The protocols here show MEM analysis using datasets from immunology and oncology. These MEM implementations provide a way to characterize population identity and novelty in the context of computational and expert analyses. (c) 2018 by John Wiley & Sons, Inc. PMID- 29345332 TI - Environmental electron microscopy: materials in their real live in gas or liquid. PMID- 29345330 TI - Non-Parametric Comparison of Single Parameter Histograms. AB - A number of methods have been developed to compare single parameter histograms. Some perform a channel-by-channel analysis and others give a single statistic about how the histograms may or may not differ. If they do differ, then the significance of the difference or confidence limit is usually provided. The specific location(s) for the greatest deviations may also be given. Some are more effective at resolving severely overlapping populations and others work poorly when there is any significant overlap. Each method makes certain assumptions about the data. It is important to understand the assumptions being made and to understand the limitations of each method. It is essential to know how to identify when a comparison method will work for a given set of histograms. This unit explores the different methods, and provides a guide for the reader to choose the most appropriate method(s) to use for a specific data set(s). (c) 2018 by John Wiley & Sons, Inc. PMID- 29345333 TI - Effects and mechanism of puerarin on the human retinoblastoma cells. AB - Puerarin is an isoflavonoid that is extracted from Kudzu root and is considered to have an anti-tumor effect. In the present study, the effects of puerarin on human retinoblastoma (RB) cells and the related pathways was determined. The retinoblastoma RB cell lines were used in this study. Cell viability and colony formation capacity were measured by MTT and colony formation assays. Cell cycle was determined by flow cytometry. Cell migration and invasion were examined by Transwell assay. The expression of cell cycle, EMT, and MAPK/ERK signal pathway related proteins were detected by western blot following puerarin treatment. The results revealed that cell viability and proliferation of RB cells treated with puerarin were significantly lower in RB cells compared to the control group. Puerarin significantly decreased the proportion of cells during S phase which was accompanied with increase in cells at G0/1 and G2 phases. Moreover, puerarin suppressed cell migration, invasion and up-regulated E-Cadherin expression as well as down-regulated Vimentin and alpha-SMA expression. Furthermore, puerarin treatment suppressed the expression of p-MEK and p-ERK in RB cells. Our findings suggest that puerarin contributes to in the treatment of RB and other malignant tumors. PMID- 29345334 TI - Roles of the three Mycobacterium smegmatis katG genes for peroxide detoxification and isoniazid susceptibility. AB - Three different katG sequences (katGI, katGII and katGIII) were identified in the Mycobacterium smegmatis genome. The contributions of the three katG genes to survival of the bacterium were examined by constructing disruptants of these three genes. The katGIII sequence did not produce a functional catalase peroxidase. Analyses of peroxidase activity and mRNA expression revealed that in wild type M. smegmatis, expression dominance between KatGI and KatGII was switched in the exponential and stationary growth phases. Susceptibility of the M. smegmatis gene disruptants to hydrogen peroxide (H2 O2 ) was tested in two growth phases. In the exponential phase, the katGI-null strain was more susceptible to H2 O2 than the katGII-null strain, indicating that KatGI plays a more important role in survival than KatGII in this growth phase. In contrast, in the stationary phase, growth of the katGII-null strain was inhibited at lower concentrations of H2 O2 . These results suggest that M. smegmatis has two types of catalase-peroxidases, expressions of which are controlled under different gene regulatory systems. Isoniazid (INH) susceptibilities of the katG-null strains were also examined and it was found that katGI is a major determinant of M. smegmatis susceptibility to INH. PMID- 29345335 TI - Heat shock protein 70 modulates neural progenitor cells dynamics in human neuroblastoma SH-SY5Y cells exposed to high glucose content. AB - In the current experiment, detrimental effects of high glucose condition were investigated on human neuroblastoma cells. Human neuroblastoma cell line SH-SY5Y were exposed to 5, 40, and 70 mM glucose over a period of 72 h. Survival rate and the proliferation of cells were analyzed by MTT and BrdU incorporation assays. Apoptosis was studied by the assays of flow cytometry and PCR array. In order to investigate the trans-differentiation capacity of the cell into mature neurons, we used immunofluorescence imaging to follow NeuN protein level. The transcription level of HSP70 was shown by real-time PCR analysis. MMP-2 and -9 activities were shown by gelatin Zymography. According to data from MTT and BrdU incorporation assay, 70 mM glucose reduced cell viability and proliferation rate as compared to control (5 mM glucose) and cells treated with 40 mM glucose (P < 0.05). Cell exposure to 70 mM glucose had potential to induced apoptosis after 72 h (P < 0.05). Our results also demonstrated the sensitivity of SH-SY5Y cells to detrimental effects of high glucose condition during trans-differentiation into mature neuron-like cells. Real-time PCR analysis confirmed the expression of HSP70 in cells under high content glucose levels, demonstrating the possible cell compensatory response to an insulting condition (pcontrol vs 70 mM group <0.05). Both MMP-2 and -9 activities were reduced in cells being exposed to 70 mM glucose. High glucose condition could abrogate the dynamics of neural progenitor cells. The intracellular level of HSP70 was proportional to cell damage in high glucose condition. PMID- 29345336 TI - gammadelta cells and tumor microenvironment: A helpful or a dangerous liason? AB - gammadelta T cells are a subset of T lymphocytes that have been implicated in immunosurveillance against infections and tumors. gammadelta T cells are endowed with antitumor activities, and hence several gammadelta T cell-based small-scale clinical trials have been conducted either by in vivo activation by intravenous administration of aminobiphosphonates or by adoptive transfer of in vitro expanded gammadelta T cells. Although both these strategies have yielded promising results, there are a number of limitations associated with each of them which, if overcome may help to further improve efficacy. One of the most important limits is the possible polarization of tumor-infiltrating gammadelta T cells toward different gammadelta T cells population with functional activities that help the progression and spread of the tumor. Here, we review the modalities and the possible mechanisms involved in the polarization of tumor-infiltrating gammadelta T cells upon interaction with several components of the tumor microenvironment and discuss their implications for the manipulation of gammadelta T cells in cancer immunotherapy. PMID- 29345337 TI - Effects of Benzoapyrene on migration and invasion of lung cancer cells functioning by TNF-alpha. AB - In this study, we attempted to find out the underlying mechanism of Benzoapyrene and metastasis of lung cancer cells. We also did experiments to testify the connection between BaP and its potential target, TNF-alpha. Cell median lethal dose (IC50 ) of both cells was measured by crystal violet method. Quantitative real-time reverse transcription PCR (qRT-PCR) and Western blot were employed to detect the expression of TNF-alpha. Wound healing assay and transwell assay were utilized to testify the impacts of BaP and TNF-alpha on the metastasis of lung cancer cells. Cell death rate was elevated with the increase of BaP concentration. BaP increased the number of metastatic cells of lung cancer. The expressions of TNF-alpha pathway-associated protein (TNF-alpha, NF-kB [P65], Caspase3, and Caspase8) were enhanced by overexpressed BaP. TNF-alpha shRNA suppressed the positive effects of BaP on migration and invasion of lung cancer cells. Our study validated the positive effects of BaP on the metastasis of lung cancer cells. We also revealed the instrumental role of TNF-alpha in helping the development of lung cancer cells induced by BaP. PMID- 29345338 TI - MIAT lncRNA is overexpressed in breast cancer and its inhibition triggers senescence and G1 arrest in MCF7 cell line. AB - Long non-coding RNAs are known as key regulators in the progression and metastasis of breast cancer. MIAT originally has been considered as an lncRNA to be associated with a susceptibility to myocardial infarction. Here, we have detected the expression of MIAT in different cancer cells and a series of breast tumor tissue. MIAT expression was much higher in high-grade tumors compared to low-grade ones. Unlike P53 positive tumors, MIAT expression was upregulated in ER, PR, Her2 positive tumor tissues. Knockdown MIAT suppressed breast cancer cell proliferation and caused G1 arrest in cell cycle. Furthermore, downregulation of MIAT promoted apoptosis and significantly decreased migration of breast cancer cells. An increase in the expression of mir-302, mir-150, and a decrease in the expression of mir-29c were detected following MIAT silencing. More importantly, knockdown MIAT significantly elevated the expression of p16Ink4A and Cox2, which commitment cellular senescence in breast cancer cells. Altogether, our results suggest that MIAT involved in breast cancer progression and could be candidate as a novel tumor marker for diagnosis and treatment of breast cancer. PMID- 29345339 TI - The role of Cdk5-mediated Drp1 phosphorylation in Abeta1-42 induced mitochondrial fission and neuronal apoptosis. AB - Alzheimer's disease, one of the most common neurodegenerative diseases, is pathologically characterized by Amyloid beta containing plaques and neurofibrillary tangles. Amyloid beta (Abeta) induces neuronal apoptosis through the intracellular Ca2+ increase, subsequent hyperactivation of cyclin-dependent kinase 5 (Cdk5) and mitochondrial abnormality. Recently, Cdk5 was identified as an upstream regulator of mitochondrial fission during neuronal apoptosis, but the underlying mechanism remains unclear. Here, in vitro phosphorylation assays showed that Cdk5 could phosphorylate the recombinant Drp1 at Serine 579. Abeta1 42 stimulation increased the phosphorylation level of Drp1 at Serine 579 in mouse cortical neurons. Cdk5 inhibitor roscovitine and knockdown of Cdk5 by a lentiviral vector expressing shRNA targeting Cdk5 (Lenti-Cdk5-shRNA) efficiently prevented Abeta1-42 induced Drp1 phosphorylation in neurons. In addition, Abeta1 42 stimulation induced markedly mitochondrial fission in neurons. Roscovitine, Lenti-Cdk5-shRNA and expression of phospho-defect mutatant GFP-Drp1-S579A in neurons attenuated Abeta1-42 induced mitochondrial fission, whereas expression of phospho-mimetic mutant GFP-Drp1-S579D alone resulted in mitochondiral fission similar to Abeta1-42 stimulation. Moreover, Roscovitine and Lenti-Cdk5-shRNA suppressed the cleavage of caspase-3 and protected neurons against Abeta1-42 induced neuronal apoptosis.Thus, our data indicate that Drp1 is a direct target of Cdk5, and Cdk5-mediated phosphorylation of Drp1 at Serine 579 regulates Abeta1 42 induced mitochondrial fission and neuronal toxicity. PMID- 29345340 TI - Berberine demonstrates anti-inflammatory properties in Helicobacter pylori infected mice with chronic gastritis by attenuating the Th17 response triggered by the B cell-activating factor. AB - Berberine (BBR) is an isoquinoline alkaloid derived from various medicinal herbs. Previous studies have suggested that BBR exerts antimicrobial, antitumor, and antidiabetic effects and can be used to treat Helicobacter pylori-induced chronic gastritis. However, the exact mechanism by which BBR inhibits H. pylori infection is not fully understood. We investigated the anti-inflammatory properties and potential mechanism of BBR in H. pylori-infected mice with chronic gastritis. We found that BBR can suppress the expression of pro-inflammatory genes IL-6, TGF beta, and IL-1beta and upregulate anti-inflammatory gene IL-10 expression in the mucosa and RAW 264.7 macrophages. Exposure to BBR also reduced the expression and accumulation of IL-17 in the mucosa and CD4+ T cells activated by anti-CD3 and anti-CD28, and it decreased the frequency of IL-17-producing CD4+ T cells. B cell activating factor (BAFF) production was inhibited by BBR and by cultured dendritic and CD4+ T cells. Furthermore, we demonstrated that BAFF can trigger the Th17 response by promoting the production of pro-Th17 cytokines IL-6, TGF beta, and IL-1beta, which are strongly associated with the anti-inflammatory role of BBR in chronic gastritis caused by H. pylori. In conclusion, we determined that BBR has anti-inflammatory effects on H. pylori-induced chronic gastritis by attenuating the BAFF-triggered Th17 response. PMID- 29345341 TI - Novel insights into FAS defects underlying autoimmune lymphoproliferative syndrome revealed by studies in consanguineous patients. AB - Autoimmune lymphoproliferative syndrome (ALPS) is a primary immunodeficiency disease due to impaired Fas-Fas ligand apoptotic pathway. It is characterized by chronic nonmalignant, noninfectious lymphadenopathy and/or splenomegaly associated with autoimmune manifestations primarily directed against blood cells. Herein, we review the heterogeneous ALPS molecular bases and discuss recent findings revealed by the study of consanguineous patients. Indeed, this peculiar genetic background favored the identification of a novel form of AR ALPS-FAS associated with normal or residual protein expression, expanding the spectrum of ALPS types. In addition, rare mutational mechanisms underlying the splicing defects of FAS exon 6 have been identified in AR ALPS-FAS with lack of protein expression. These findings will help decipher critical regions required for the tight regulation of FAS exon 6 splicing. We also discuss the genotype-phenotype correlation and disease severity in AR ALPS-FAS. Altogether, the study of ALPS molecular bases in endogamous populations helps to better classify the disease subgroups and to unravel the Fas pathway functioning. PMID- 29345342 TI - Frontline Science: High fat diet and leptin promote tumor progression by inducing myeloid-derived suppressor cells. AB - Obesity is a risk factor for cancer incidence and cancer mortality. The association of obesity and cancer is attributed to multiple factors, but the tightest linkage is with the chronic, low-grade inflammation that accompanies obesity. Myeloid-derived suppressor cells (MDSC) are known facilitators of cancer progression that act by suppressing the activation and function of tumor-reactive T cells. Because MDSC quantity and function are driven by chronic inflammation, we hypothesized that MDSC may accumulate in obese individuals and facilitate tumor growth by suppressing antitumor immunity. To test this hypothesis, tumor bearing mice on a high fat or low fat diet (HFD or LFD) were assessed for tumor progression and the metabolic dysfunction associated with obesity. HFD enhanced the accumulation of MDSC, and the resulting MDSC had both beneficial and detrimental effects. HFD-induced MDSC protected mice against diet-induced metabolic dysfunction and reduced HFD-associated inflammation, but also increased the accumulation of fat, enhanced tumor progression, and spontaneous metastasis and reduced survival time. HFD-induced MDSC facilitated tumor growth by limiting the activation of tumor-reactive CD8+ T cells. Leptin, an adipokine that regulates appetite satiety and is overexpressed in obesity, undergoes crosstalk with MDSC in which leptin drives the accumulation of MDSC while MDSC down regulate the production of leptin. Collectively, these studies demonstrate that although MDSC protect against some metabolic dysfunction associated with HFD they enhance tumor growth in HFD mice and that leptin is a key regulator linking HFD, chronic inflammation, immune suppression, and tumor progression. PMID- 29345343 TI - Mycobacterium tuberculosis: Rewiring host cell signaling to promote infection. AB - The ability of Mycobacterium tuberculosis to cause disease hinges upon successfully thwarting the innate defenses of the macrophage host cell. The pathogen's trump card is its armory of virulence factors that throw normal host cell signaling into disarray. This process of subverting the macrophage begins upon entry into the cell, when M. tuberculosis actively inhibits the fusion of the bacilli-laden phagosomes with lysosomes. The pathogen then modulates an array of host signal transduction pathways, which dampens the macrophage's host protective cytokine response, while simultaneously adapting host cell metabolism to stimulate lipid body accumulation. Mycobacterium tuberculosis also renovates the surface of its innate host cells by altering the expression of key molecules required for full activation of the adaptive immune response. Finally, the pathogen coordinates its exit from the host cell by shifting the balance from the host-protective apoptotic cell death program toward a lytic form of host cell death. Thus, M. tuberculosis exploits its extensive repertoire of virulence factors in order to orchestrate the infection process to facilitate its growth, dissemination, and entry into latency. This review offers critical insights into the most recent advances in our knowledge of how M. tuberculosis manipulates host cell signaling. An appreciation of such interactions between the pathogen and host is critical for guiding novel therapies and understanding the factors that lead to the development of active disease in only a subset of exposed individuals. PMID- 29345345 TI - Autophagy inhibition promotes phagocytosis of macrophage and protects mice from methicillin-resistant staphylococcus aureus pneumonia. AB - The present study is to investigate the effect of autophagy in macrophages and the protection of mouse models against MRSA invasion, which provide new potential therapeutic direction for lung infection. The effect of ST239 in macrophages were analyzed by Western blot. The immunofluorescence was used to observe the influence of autophagy inhibitor 3-MA in macrophages. Then we established MRSA mice model and the models were divided into different groups of drugs. The effect of autophagy in macrophage with MRSA and the changes of lung pathological in the mouse model was analyzed by flow cytometry and immunohistochemistry. The ability of phagocytic decreases when ST239 infected the macrophages. And the autophagy related genes Beclin-1, LC3-I, and LC3-II protein expression significantly increased. GFP-LC3 immunostaining showed that GFP-LC3 was significantly over expressed in ST239-infected macrophages. Then we found the autophagy inhibitors 3 MA could make the expression of autophagy-related genes Beclin-1, LC3-I, and LC3 II decreased, the number of ST239 decreased, and the ability of macrophages phagocytosed MRSA increasing. In the mouse model we performed the same assay, the results showed that the percentage of macrophages in the mouse model treated with 3-MA was increased compared to the ST239 mouse model and that the number of bacteria in right lung significantly reduced. Lung cells treated with3-MA significantly improved the lesion of ST239 lung cell disease. Inhibition of autophagy can increase the ability of macrophages phagocytosed MRSA, and it is a suitable target for preventing or treating MRSA infection. PMID- 29345346 TI - Galectin-3 type-C self-association on neutrophil surfaces; The carbohydrate recognition domain regulates cell function. AB - Galectin-3 is an endogenous beta-galactoside-binding lectin comprising a carbohydrate recognition domain (CRD) linked to a collagen-like N-domain. Both domains are required for galectin-3 to induce cellular effects; a C-terminal fragment of galectin-3, galectin-3C, containing the CRD but lacking the N-domain, binds cell surface glycoconjugates but does not induce cellular effects since cross-linking promoted by the N-domain is thought to be required. Instead, galectin-3C is proposed to antagonize the effects of galectin-3 by competing for binding sites. The aim of this study was to investigate the effects of galectin 3C on galectin-3 interactions with human neutrophils. Recombinant galectin-3C inhibited galectin-3-induced production of reactive oxygen species in primed neutrophils. Surprisingly, this inhibition was not due to competitive inhibition of galectin-3 binding to the cells. In contrast, galectin-3C potentiated galectin 3 binding, in line with emerging evidence that galectin-3 can aggregate not only through the N-domain but also through the CRD. The cell surface interaction between galectin-3C and galectin-3 was corroborated by colocalization of fluorescently labeled galectin-3 and galectin-3C. Galectin-3C can be generated in vivo through cleavage of galectin-3 by proteases. Indeed, in circulation, galectin-3 and galectin-3C were both attached to the cell surface of neutrophils, which displayed great capacity to bind additional galectin-3 and galectin-3C. In conclusion, galectin-3C enhances galectin-3 binding to neutrophils by nonactivating type-C self-association, in parallel to inhibiting neutrophil activation by galectin-3 (induced by type-N self-association). This implicates type-C self-association as a termination system for galectin-3-induced cell activation, with the purpose of avoiding oxidant-dependent tissue damage. PMID- 29345344 TI - Differential outcomes of TLR2 engagement in inflammation-induced preterm birth. AB - Preterm birth (PTB) is the leading cause of neonatal mortality worldwide. Infection and inflammation are considered main causes of PTB. Among multiple pathogens, Gram-positive bacteria are commonly linked with induction of PTB. Although activation of innate immune responses, via TLR2 engagement, by Gram positive bacteria is a likely cause, whether induction of PTB depends on the potency of specific microbial components to induce Toll-like receptor (TLR)2 driven inflammation has not been elucidated. Here, we show that TLR2 activation by synthetic lipopeptides, Pam2Cys, and Pam3Cys specifically, variably influenced inflammation and subsequent induction of PTB. Pam2Cys challenge, compared to Pam3Cys, induced PTB and promoted significantly higher expression of inflammatory cytokines, specifically IL-6 and IFN-beta, both in vivo and in vitro. Notably, antibody-mediated neutralization of IL-6 or genetic deletion of type I IFN receptor (IFNAR) was sufficient to protect from Pam2Cys-driven PTB and to temper excessive proinflammatory cytokine production. Conversely, IFN-beta or IL-6 was not sufficient to promote induction of PTB by Pam3Cys. In summary, our data implies a divergent function of TLR2-activating lipopeptides in the magnitude and type of ligand-driven inflammatory vigor in induction of PTB. PMID- 29345347 TI - Interferons and beyond: Induction of antiretroviral restriction factors. AB - Antiviral restriction factors are structurally and functionally diverse cellular proteins that play a key role in the first line of defense against viral pathogens. Although many cell types constitutively express restriction factors at low levels, their induction in response to viral exposure and replication is often required for potent control and repulse of the invading pathogens. It is well established that type I IFNs efficiently induce antiviral restriction factors. Accumulating evidence suggests that other types of IFN, as well as specific cytokines, such as IL-27, and other activators of the cell are also capable of enhancing the expression of restriction factors and hence to establish an antiviral cellular state. Agents that efficiently induce restriction factors, increase their activity, and/or render them resistant against viral antagonists without causing general inflammation and significant side effects hold some promise for novel therapeutic or preventive strategies. In the present review, we summarize some of the current knowledge on the induction of antiretroviral restriction factors and perspectives for therapeutic application. PMID- 29345348 TI - Roles of neutrophils in cancer growth and progression. AB - Chronic inflammation is a well-known tumor-enabling capacity, which allows nascent tumors to acquire all the hallmark capabilities, including the escape from immunosurveillance. Soluble and cellular inflammatory mediators constitute the complex network of the tumor microenvironment, in which tumors grow and with which constantly interact. Myeloid cells (e.g., tumor associated macrophages) are pivotal players of the tumor microenvironment and are characterized by plasticity, which consists of the ability to acquire distinct phenotypes in response to the microenvironment in which they reside. Neutrophils are emerging as important players of tumor microenvironment, given their heterogeneity and plasticity. Increasing evidence suggests a dual role for neutrophils in modulating tumor behavior and highlights the need for a reassessment of neutrophil functions in cancer initiation and progression. PMID- 29345349 TI - Enhanced phosphorylation of sphingosine and ceramide sustains the exuberant proliferation of endothelial progenitors in Kaposi sarcoma. AB - Endothelial colony-forming cells (ECFCs), a unique endothelial stem cell population, are highly increased in the blood of Kaposi sarcoma (KS) patients. KS derived ECFCs (KS-ECFCs) are also endowed with increased proliferative and vasculogenic potential, thus suggesting that they may be precursors of KS spindle cells. However, the mechanisms underlying the increased proliferative activity of KS-ECFCs remain poorly understood. Sphingosine-1-phosphate (S1P) and ceramide-1 phosphate (C1P) are metabolically interconnected sphingoid mediators crucial to cell proliferation. Here, we investigated the metabolism, release, and proliferative effects of S1P and C1P in KS-ECFCs compared with control ECFCs (Ct ECFCs). Metabolic studies by cell labeling, chromatographic analyses, and digital autoradiography revealed that S1P and C1P biosynthesis and S1P secretion are all efficient processes in KS-ECFCs, more efficient in KS-ECFCs than Ct-ECFCs. Quantitative PCR analyses demonstrated a significantly higher ceramide kinase and sphingosine kinase-2 expression in KS-ECFCs. Notably, also the expression of S1P1 and S1P3 receptors was augmented in KS-ECFCs. Accordingly, treatment with exogenous C1P or S1P induced a significant, concentration-dependent stimulation of KS-ECFC proliferation, but was almost completely ineffective in Ct-ECFCs. Hence, we identified C1P and S1P as autocrine/paracrine proliferative signals in KS-ECFCs. A better understanding of the mechanisms that enhance S1P/C1P formation in KS-ECFCs may yield effective therapeutic modalities. PMID- 29345350 TI - Activation of the sympathetic nervous system modulates neutrophil function. AB - Emerging evidence has revealed that noradrenaline (NA), the main neurotransmitter of the sympathetic nervous system (SNS), regulates a variety of immune functions via binding to adrenergic receptors present on immune cells. In this study, we examined the role of NA in the regulation of neutrophil functions. Neutrophils were isolated from the bone marrow of naive mice and treated with NA at various concentrations to assess the effect on various neutrophil functions. Additionally, we performed cremaster intravital microscopy to examine neutrophil endothelial cell interactions following NA superfusion in vivo. In a separate group of animals, mice were subjected to an experimental model of stroke and at 4 and 24 h neutrophils were isolated for assessment on their ability to migrate toward various chemokines. Treatment of neutrophils with NA for 4 h significantly impaired neutrophil chemotaxis and induced an N2 neutrophil phenotype with reduced expression of the genes critical for cytoskeleton remodeling and inflammation. Prolonged NA administration promoted neutrophils to release myeloperoxidase and IL-6, but suppressed the production of interferon-gamma and IL-10, reduced neutrophil activation and phagocytosis. Superfusion of NA over the cremaster muscle almost completely inhibited fMLP-induced neutrophil adhesion/arrest and transmigration. Furthermore, using a mouse model of stroke, a pathological condition in which SNS activation is evident, neutrophils isolated from poststroke mice showed markedly reduced chemotaxis toward all of the chemokines tested. The findings from our study indicate that neutrophil chemotaxis, activation, and phagocytosis can all be negatively regulated in an NA dependent manner. A better understanding of the relationship between sympathetic activation and neutrophil function will be important for the development of effective antibacterial interventions. PMID- 29345351 TI - K313, a novel benzoxazole derivative, exhibits anti-inflammatory properties via inhibiting GSK3beta activity in LPS-induced RAW264.7 macrophages. AB - Benzoxazole and its derivatives have been widely studied in recent years due to their various biological properties. A previous study has demonstrated that K313 (1H-indole-2,3-dione 3-(1,3-benzoxazol-2-ylhydrazone)), a novel benzoxazole derivative, inhibits T cell proliferation to yield immunosuppressive effects. However, there are no related reports about its anti-inflammatory effects. In the present study, we investigated the anti-inflammatory properties and the underlying molecular mechanism of K313 in lipopolysaccharide (LPS)-induced RAW264.7 macrophages. K313 dose-dependently (5, 10, and 20 MUM) inhibited LPS stimulated nitric oxide (NO), interleukin (IL)-6, tumor necrosis factor (TNF) alpha, and 3-nitrotyrosine (3-NT) production and significantly decreased the gene transcription levels of inducible nitric oxide (iNOS), IL-6, and TNF-alpha. In addition, the results showed that the inflammatory cytokines suppressed by K313 were not regulated by p65 NF-kappaB, ERK1/2, AKT, or p38 MAPK. Instead, K313 increased phosphorylation of glycogen synthase kinase-3 beta (GSK-3beta) (Ser9) resulting in GSK-3beta deactivation. Moreover, in LPS-stimulated RAW264.7 macrophages, K313 and lithium chloride (LiCl) had a synergistic effect on the anti-inflammatory response. These results indicated that K313 exhibited anti inflammatory properties and revealed the potential mechanism. K313 can increase GSK-3beta (Ser9) phosphorylation to decrease GSK-3beta activation in LPS-induced RAW264.7 macrophages. PMID- 29345352 TI - Achyranthes bidentata polysaccharide suppresses osteoclastogenesis and bone resorption via inhibiting RANKL signaling. AB - Osteoclasts are highly differentiated multinucleated giant cells that play fundamental roles in bone resorption and in the pathogenesis of osteolytic conditions, such as osteoporosis and cancer-induced bone loss. Achyranthes bidentata polysaccharide (ABP) is a hydrophilic compound with anti-oxidation and anti-aging characteristics. The impact of ABP on RANKL-induced osteoclast formation and bone resorption has not been assessed, hence, in this study we investigated the effect of ABP on osteoclast formation and resorption in murine bone marrow derived osteoclasts. We found that ABP was able to suppress RANKL induced osteoclast differentiation and bone resorption activity at concentrations above 6.5 uM, while demonstrating no cytotoxicity at concentrations up to 10 uM. The actions of ABP were mediated through inhibition of RANKL-induced c-Fos and NFATc1 gene and protein expression. Furthermore, we found that ABP suppressed NFATc1 transcriptional activity, and the phosphorylation of MAPK pathways induced by RANKL. Collectively, ABP attenuates RANKL-mediated osteoclast activity and signaling, and might serve as a potential therapeutic candidate for preventing bone loss related diseases. PMID- 29345353 TI - HipOP mesenchymal population has high potential for repairing injured peripheral nerves. AB - Bone marrow stromal cells (BMSCs) are reportedly a heterogeneous population of mesenchymal stem cells (MSCs). Recently, we developed a simple strategy for the enrichment of MSCs with the capacity to differentiate into osteoblasts, chondrocytes, and adipocytes. On transplantation, the progenitor-enriched fractions can regenerate the bone with multiple lineages of donor origin and are thus called "highly purified osteoprogenitors" (HipOPs). Although our previous studies have demonstrated that HipOPs are enriched with MSCs and exhibit a higher potential to differentiate into osteoblasts, adipocytes, and chondrocytes than BMSCs, their potential to differentiate into neural cells has not been clarified. In this study, we evaluated the efficacy of HipOPs as a resource of neural stem cells. The neurosphere assay showed that neurospheres formed by HipOPs exhibited self-renewal ability and their size was generally larger than that of neurospheres formed by BMSCs. A limiting dilution assay was used to evaluate the frequency of neural progenitors in BMSCs and HipOPs. The results demonstrated that the frequency of neural progenitors in HipOPs was 120-fold higher than that in BMSCs. Furthermore, to investigate the in vivo regenerative potential of the peripheral nerve, we modified a murine peripheral nerve injury experimental model and demonstrated that HipOPs exhibit a higher efficacy in repairing injured peripheral nerves. These findings suggest that HipOPs are a useful cell resource for regenerative therapies such as that in case of peripheral nerve injury. PMID- 29345354 TI - Lack of functional selectin-ligand interactions enhances innate immune resistance to systemic Listeria monocytogenes infection. AB - Selectin-ligand interactions are important for leukocyte homing and functionality. The roles of selectin-ligand interactions in modulating immunity to intracellular infections are not completely understood. Mice lacking the expression of fucosyltransferase-IV and -VII (Fucosyltransferase-IV and -VII double knockout, FtDKO) exhibit deficient functionality of selectin-ligand interactions. We addressed the kinetics of infection and immunity to Listeria monocytogenes (LM), an intracellular pathogen, in FtDKO mice. These mice exhibited enhanced ability to clear infection and increased survival to a lethal dose of LM infection relative to wild-type (WT) C57BL/6J controls. This was associated with increased levels of neutrophils, monocytes, and dendritic cells (DCs) in the blood and/or infected organs. Adoptive transfer of bone marrow (BM) cells from FtDKO mice to WT mice resulted in enhanced neutrophil numbers and improved clearance of LM bacteria in recipients. In vivo depletion of myeloid innate immune cells, particularly neutrophils, monocytes, macrophages, and DCs, using anti-Ly-6G (RB6-8C5) monoclonal antibody, reduced the ability of FtDKO mice to curtail LM infection. Nevertheless, depletion using anti-Ly-6G (1A8) known to exclusively deplete neutrophils did not abrogate increased resistance of FtDKO mice to LM infection, suggesting a role for other myeloid innate immune cells in this model. Examination of BM hematopoietic progenitors through flow cytometry and cell culture colony-forming unit assay showed increased frequencies of granulocyte-macrophage progenitors in FtDKO relative to WT mice, Overall, our results indicate that functional selectin ligand deficiency enhances innate immune-mediated resistance to systemic LM infection despite defective leukocyte migration and lymphocyte homing. PMID- 29345355 TI - Effects of antioxidants on apoptosis induced by dasatinib and nilotinib in K562 cells. AB - In clinical practice for the treatment of chronic myeloid leukemia, second generation of tyrosine kinase inhibitors such as Nilotinib (NIL) specific and potent inhibitor of the BCR/ABL kinase and Dasatinib (DAS) a inhibitor of BCR/ABL and Src family kinase were developed to clinically overcome imatinib resistance. In this study, we wanted to test the ability of some antioxidants such Resveratrol (RES) or a new recombinant mitochondrial manganese containing superoxide dismutase (rMnSOD) or delta-tocotrienol (delta-TOCO) to interact with DAS and NIL on viability, reactive oxygen species (ROS) production, lipid peroxidation, and apoptosis. To test the possible mechanisms of action of such antioxidants, we utilized N-acetyl-L-cysteine (NAC) a specific inhibitor ROS production or PP1 a specific Src tyrosine kinase inhibitor or BAPTA a specific chelator of intracellular calcium. Our data demonstrated: 1) RES, rMnSOD, delta TOCO, and NAC, at dose used, significantly reduced the intracellular levels of MDA induced by DAS or NIL; 2) RES, rMnSOD, and delta-TOCO increased the intracellular ROS levels; 3) The increase ROS levels is related to higher levels of oligonucleosomesi induced by DAS and NIL and that NAC significantly reduced this activity. Interestingly, our data showed that apoptotic activity of DAS and NIL have significantly increased the production of oligonucleosomes by triggering excessive ROS generation as well as functionality of SERCA receptors. PMID- 29345356 TI - Ethical and Practical Considerations in the Use of a Predictive Model to Trigger Suicide Prevention Interventions in Healthcare Settings. AB - Predictive models that utilize data from electronic healthcare records (EHR) have been developed, investigated, and appear to provide an important resource for suicide prevention in medical settings. Actuarial approaches to predicting suicide may be particularly important given the relative inability of clinicians to accurately predict suicide. Although research regarding predictive models that utilize EHR is certainly promising, ethical considerations for the use of these models to trigger suicide prevention interventions warrant careful consideration. The current manuscript discusses ethical considerations regarding the use of predictive models in suicide prevention clinical care. The unique characteristics of suicide are explored in terms of how they inform ethical and practical approaches. Additionally, biomedical ethical principles and utilitarian, Kantian, and personal rights ethical models are applied to the topic. Recommendations for navigating the ethical issues are provided as an initial framework for others who are considering the implementation of a predictive model to trigger suicide prevention initiatives. PMID- 29345358 TI - Editorial: Two MDSC faces in obesity: Correcting metabolic dysfunctions but promoting tumor development. PMID- 29345357 TI - The prognostic value of PI3K mutational status in breast cancer: A meta-analysis. AB - Breast cancer (BC) is the second most common cause of cancer-related deaths in women worldwide. The availability of reliable biomarkers of response/resistance to cancer treatments would benefit patients and clinicians allowing for a better selection of BC patients most likely to respond to a specific treatment. Phosphatidylinositol 3-kinase (PI3K) enzymes are involved in numerous cellular- functions and processes. The gene encoding for PI3K catalytic subunit p110alpha is mutated in 20-40% of BC. We performed a meta-analysis of the current literature on randomized clinical trials, investigating the role of PIK3CA mutational status as prognostic factor, and predictor of response to anti-cancer treatments. Overall 1929 cases were included. The pooled analysis confirmed that the presence of a PIK3CA mutation represents an independent negative prognostic factor (HR = 1.67, 95%CI: 1.15-2.43; P = 0.007) in BC, as previously reported. As PI3K signaling is also a result of other pathways' hyperactivation, further investigation of potential biomarkers able to predict likelihood of response to anti-PI3K/mTOR, anti-HER2, and other TKRs is warranted in future randomized clinical trials. PMID- 29345359 TI - PDZ proteins are expressed and regulated in antigen-presenting cells and are targets of influenza A virus. AB - In this work, we identified the expression, regulation, and viral targeting of Scribble and Dlg1 in antigen-presenting cells. Scribble and Dlg1 belong to the family of PDZ (postsynaptic density (PSD95), disc large (Dlg), and zonula occludens (ZO-1)) proteins involved in cell polarity. The relevance of PDZ proteins in cellular functions is reinforced by the fact that many viruses interfere with host PDZ-dependent interactions affecting cellular mechanisms thus favoring viral replication. The functions of Scribble and Dlg have been widely studied in polarized cells such as epithelial and neuron cells. However, within the cells of the immune system, their functions have been described only in T and B lymphocytes. Here we demonstrated that Scribble and Dlg1 are differentially expressed during antigen-presenting cell differentiation and dendritic cell maturation. While both Scribble and Dlg1 seem to participate in distinct dendritic cell functions, both are targeted by the viral protein NS1 of influenza A in a PDZ-dependent manner in dendritic cells. Our findings suggest that these proteins might be involved in the mechanisms of innate immunity and/or antigen processing and presentation that can be hijacked by viral pathogens. PMID- 29345360 TI - mTOR: A double-edged sword for diabetes. AB - Diabetes is both a metabolic and an immune disorder. One intriguing link between the two is the serine-threonine protein kinase mammalian target of rapamycin (mTOR). As a component of the PI3K/Akt pathway and other cellular signals, mTOR is a key regulator of fuel metabolism and function of both pancreatic islet beta cells and immune cells. Consequently, it seems that mTOR has both anti- and prodiabetic effects. On the one hand, activation of mTOR in beta cells can increase their growth and proliferation, opposing impairments of insulin secretion in diabetes. On the other, activation of mTOR signaling in specific immune cells alters their fuel metabolism, amplifying their contributions to beta cell dysfunction, contributing to the development of diabetes. In this review, we focus on roles of mTOR signaling in pancreatic beta cells and immune cells and their implications in the pathogenesis and treatment of diabetes. PMID- 29345361 TI - Immunotherapy for cardiovascular disease. AB - Heart failure (HF), the final stage of pathological cardiac hypertrophy, is a major cause of hospitalization and mortality. The role of inflammation in the pathogenesis of HF has been extensively studied, with great emphasis on proinflammatory cytokines. Yet, clinical trials targeting these cytokines failed to become a credible therapeutic strategy for HF. More recent studies are increasingly highlighting an active role for T cells in the progression of HF pathology. As a result, a number of novel immunotherapy strategies are emerging for the treatment of HF and other cardiovascular diseases, via the targeting of adaptive immunity. Here we provide an overview of the background, details, and expected outcomes of these attempts. PMID- 29345362 TI - Innate lymphoid cells in antitumor immunity. AB - Innate lymphoid cells (ILCs) are the most recently characterized subset of innate lymphocytes. Based on their specific transcriptional regulation, cytokine secretion pattern and effector functions ILCs mirror the different CD4 T helper cell subsets, with the unique attributes of acting locally in early phases of immune responses, in an antigen-independent manner. In this review, we discuss how ILCs have been implicated in tumorigenesis. Their presence might favor or inhibit tumor growth, depending on the cytokines released and the specific tumor microenvironment. As our understanding of ILCs' contribution to antitumor responses advances, clinical options to target ILCs in antitumor therapies are also emerging. PMID- 29345363 TI - Effects of IL-10 and Th 2 cytokines on human Mphi phenotype and response to CSF1R inhibitor. AB - Tumor-associated Mphis display a plastic phenotype that is regulated by the local tumor milieu. Gene expression analysis and functional characterization of Mphis exposed in vitro to individual cytokines aids to delineate the cross-talk between defined cytokines shaping the complex Mphi phenotype. Human monocyte-derived Mphis can be differentiated in vitro with the T helper cell type 2 response cytokines IL-4 and IL-13 or the immunosuppressive IL-10. Notably, only the latter subset undergoes apoptosis when treated with the CSF 1 receptor (CSF1R) blocking antibody emactuzumab. However, under physiologic conditions, the Mphi phenotype is regulated by cytokine combination. Hence, in this study, we characterized the plasticity of IL-4 or IL-13-differentiated Mphis upon exposure to the immunosuppressive IL-10. Although IL-4-differentiated Mphis sustained their molecular phenotype in the presence of IL-10, IL-13-differentiated Mphis were skewed towards the IL-10 phenotype. Gene expression profiling revealed unique IL 4+IL-10 and IL-13+IL-10 Mphi signatures associated with up-regulation of canonical NF-kappaB or Wnt/beta-catenin signaling pathways, respectively. Although IL-10 was able to alter the surface marker and gene expression profile of IL-13-differentiated Mphis, addition of IL-10 did not restore emactuzumab susceptibility. Combining NF-kappaB and Wnt/beta-catenin signaling inhibitors with emactuzumab had no effect on viability. On average 3-5% of cancer patients overexpressed IL-4, IL-13, or IL-10 mRNA in silico. Although a small patient subset overexpressed IL-10+IL-13, IL-4+IL-10 lacked co-expression. In vitro characterization of CSF1R inhibitor-refractory Mphi phenotypes can support novel pharmacological approaches to specifically target these cells. PMID- 29345364 TI - The N-terminal peptide moiety of the Mycobacterium tuberculosis 19 kDa lipoprotein harbors RP105-agonistic properties. AB - Radioprotective 105 kDa (RP105, CD180) is a member of the Toll-like receptor (TLR) family that interacts with TLR2 and facilitates recognition of mature lipoproteins expressed by Mycobacterium tuberculosis and Mycobacterium bovis BCG. In this study, we used synthetic lipopeptide analogs of the M. tuberculosis 19 kDa lipoprotein to define structural characteristics that promote RP105-mediated host cell responses. A tripalmitoylated lipopeptide composed of the first 16 N terminal amino acids of the M. tuberculosis 19 kDa lipoprotein induced RP105 dependent TNF and IL-6 production by macrophages. Di- and tripalmitoylated variants of this lipopeptide elicited an equivalent RP105-dependent response, indicating that while the lipid moiety is required for macrophage activation, it is not a determinant of RP105 dependency. Instead, substitution of two polar threonine residues at positions 7 and 8 with nonpolar alanine residues resulted in reduced RP105 dependency. These results strongly suggest that the amino acid composition of the M. tuberculosis 19 kDa lipoprotein, and likely other mycobacterial lipoproteins, is a key determinant of RP105 agonism. PMID- 29345365 TI - Deletion of BCG Hip1 protease enhances dendritic cell and CD4 T cell responses. AB - Dendritic cells (DCs) play a key role in the generation of CD4 T cell responses to pathogens. Mycobacterium tuberculosis (Mtb) harbors immune evasion mechanisms that impair DC responses and prevent optimal CD4 T cell immunity. The vaccine strain Mycobacterium bovis Bacille Calmette-Guerin (BCG) shares many of the immune evasion proteins utilized by Mtb, but the role of these proteins in DC and T cell responses elicited by BCG is poorly understood. We previously reported that the Mtb serine protease, Hip1, promotes sub-optimal DC responses during infection. Here, we tested the hypothesis that BCG Hip1 modulates DC functions and prevents optimal antigen-specific CD4 T cell responses that limit the immunogenicity of BCG. We generated a strain of BCG lacking hip1 (BCGDeltahip1) and show that it has superior capacity to induce DC maturation and cytokine production compared with the parental BCG. Furthermore, BCGDeltahip1-infected DCs were more effective at driving the production of IFN-gamma and IL-17 from antigen specific CD4 T cells in vitro. Mucosal transfer of BCGDeltahip1-infected DCs into mouse lungs induced robust CD4 T cell activation in vivo and generated antigen specific polyfunctional CD4 T cell responses in the lungs. Importantly, BCGDeltahip1-infected DCs enhanced control of pulmonary bacterial burden following Mtb aerosol challenge compared with the transfer of BCG-infected DCs. These results reveal that BCG employs Hip1 to impair DC activation, leading to attenuated lung CD4 T cell responses with limited capacity to control Mtb burden after challenge. PMID- 29345366 TI - Interactions between the microbiota and innate and innate-like lymphocytes. AB - The microbiota, which consists of commensal bacteria, fungi, and viruses, limits the colonization of pathogens at barrier tissues and promotes immune homeostasis. The latter is accomplished through the induction and regulation of both innate and adaptive immune responses. Innate lymphocytes, which include the type-1 innate lymphoid cell (ILC1), NK cell, type-2 innate lymphoid cell (ILC2), type-3 innate lymphoid cell (ILC3), and lymphoid tissue inducer (LTi) cell populations, and innate-like lymphocytes, such as NKT cells, mucosal-associated invariant T (MAIT) cells, and gammadelta T cells, are uniquely capable of responding to the microbiota due to their tissue localization and rapid primary responses. In turn, through their effector functions, these lymphocyte populations modulate the composition of the microbiota and maintain the segregation of commensals. This review will focus on how innate and innate-like lymphocytes mediate the crosstalk with the microbiome. PMID- 29345367 TI - CD300 family receptors regulate eosinophil survival, chemotaxis, and effector functions. AB - The CD300 family of receptors is an evolutionary conserved receptor family that belongs to the Ig superfamily and is expressed predominantly by the myeloid lineage. Over the past couple of years, accumulating data have shown that eosinophils express various Ig superfamily receptors that regulate key checkpoints in their biology including their maturation, transition from the bone marrow to the peripheral blood, migration, adhesion, survival, and effector functions in response to numerous activating signals such as IL-4, IL-33, and bacteria. In this review, we will present the emerging roles of CD300 family receptors and specifically CD300a and CD300f in the regulation of these eosinophil activities. The structure and expression pattern of these molecules will be discussed and their involvement in suppressing or co-activating eosinophil functions in health and disease will be illustrated. PMID- 29345368 TI - Therapeutic effect of Lipoxin A4 in malaria-induced acute lung injury. AB - Acute lung injury (ALI) models are characterized by neutrophil accumulation, tissue damage, alteration of the alveolar capillary membrane, and physiological dysfunction. Lipoxin A4 (LXA4 ) is an anti-inflammatory eicosanoid that was demonstrated to attenuate lipopolysaccharide-induced ALI. Experimental models of severe malaria can be associated with lung injury. However, to date, a putative effect of LXA4 on malaria (M)-induced ALI has not been addressed. In this study, we evaluated whether LXA4 exerts an effect on M-ALI. Male C57BL/6 mice were randomly assigned to the following five groups: noninfected; saline-treated Plasmodium berghei-infected; LXA4 -pretreated P. berghei-infected (LXA4 administered 1 h before infection and daily, from days 0 to 5 postinfection), LXA4 - and LXA4 receptor antagonist BOC-2-pretreated P. berghei-infected; and LXA4 -posttreated P. berghei-infected (LXA4 administered from days 3 to 5 postinfection). By day 6, pretreatment or posttreatment with LXA4 ameliorate lung mechanic dysfunction reduced alveolar collapse, thickening and interstitial edema; impaired neutrophil accumulation in the pulmonary tissue and blood; and reduced the systemic production of CXCL1. Additionally, in vitro treatment with LXA4 prevented neutrophils from migrating toward plasma collected from P. berghei infected mice. LXA4 also impaired neutrophil cytoskeleton remodeling by inhibiting F-actin polarization. Ex vivo analysis showed that neutrophils from pretreated and posttreated mice were unable to migrate. In conclusion, we demonstrated that LXA4 exerted therapeutic effects in malaria-induced ALI by inhibiting lung dysfunction, tissue injury, and neutrophil accumulation in lung as well as in peripheral blood. Furthermore, LXA4 impaired the migratory ability of P. berghei-infected mice neutrophils. PMID- 29345369 TI - Memory B cell heterogeneity: Remembrance of things past. AB - B cells that persist for long periods of time after antigen encounter exist as either antibody-producing plasma cells (long-lived plasma cells, LLPCs) that reside primarily in the bone marrow or rapidly responsive memory B cells (MBCs) that reside in the spleen and circulation. Although LLPCs are thought to be non responsive to a secondary infection, MBCs respond to subsequent infection through the production of antibody-secreting cells, formation of new germinal centers (GCs), and repopulation of the memory pool. Dogma suggests that MBCs express class-switched, somatically hypermutated BCRs after undergoing a GC reaction. Yet this narrow view of MBCs has been challenged over the years and it is now well recognized that diverse MBC subsets exist in both rodents and humans. Here, we review current thoughts on the phenotypic and functional characteristics of MBCs, focusing on a population of somatically hypermutated, high affinity IgM+ MBCs that are rapidly responsive to a secondary malaria infection. PMID- 29345371 TI - Therapeutic manipulation of host cell death pathways to facilitate clearance of persistent viral infections. AB - Most persistent viral infections can be controlled, but not cured, by current therapies. Abrogated antiviral immunity and stable latently infected cells represent major barriers to cure. This necessitates life-long suppressive antiviral therapy. Achieving a cure for HIV, hepatitis B virus, Epstein Barr virus, and others, requires novel approaches to facilitate the clearance of infected cells from the host. One such approach is to target host cell death pathways, rather than the virus itself. Here, we summarize recent findings from studies that have utilized therapeutics to manipulate host cell death pathways as a means to treat and cure persistent viral infections. PMID- 29345370 TI - Inhibition of soluble epoxide hydrolase attenuates eosinophil recruitment and food allergen-induced gastrointestinal inflammation. AB - Prevalence of food allergies in the United States is on the rise. Eosinophils are recruited to the intestinal mucosa in substantial numbers in food allergen-driven gastrointestinal (GI) inflammation. Soluble epoxide hydrolase (sEH) is known to play a pro-inflammatory role during inflammation by metabolizing anti inflammatory epoxyeicosatrienoic acids (EETs) to pro-inflammatory diols. We investigated the role of sEH in a murine model of food allergy and evaluated the potential therapeutic effect of a highly selective sEH inhibitor (trans-4-{4-[3 (4-trifluoromethoxyphenyl)-ureido]-cyclohexyloxy}-benzoic acid [t-TUCB]). Oral exposure of mice on a soy-free diet to soy protein isolate (SPI) induced expression of intestinal sEH, increased circulating total and antigen-specific IgE levels, and caused significant weight loss. Administration of t-TUCB to SPI challenged mice inhibited IgE levels and prevented SPI-induced weight loss. Additionally, SPI-induced GI inflammation characterized by increased recruitment of eosinophils and mast cells, elevated eotaxin 1 levels, mucus hypersecretion, and decreased epithelial junction protein expression. In t-TUCB-treated mice, eosinophilia, mast cell recruitment, and mucus secretion were significantly lower than in untreated mice and SPI-induced loss of junction protein expression was prevented to variable levels. sEH expression in eosinophils was induced by inflammatory mediators TNF-alpha and eotaxin-1. Treatment of eosinophils with t TUCB significantly inhibited eosinophil migration, an effect that was mirrored by treatment with 11,12-EET, by inhibiting intracellular signaling events such as ERK (1/2) activation and eotaxin-1-induced calcium flux. These studies suggest that sEH induced by soy proteins promotes allergic responses and GI inflammation including eosinophilia and that inhibition of sEH can attenuate these responses. PMID- 29345372 TI - Truncation of neurokinin-1 receptor-Negative regulation of substance P signaling. AB - Substance P (SP) is a tachykinin peptide, which triggers intracellular signaling in the nervous and immune systems, as well as, other local and systemic events. The interaction between SP and its receptor, neurokinin-1 receptor (NK1R), results in major downstream cellular actions, which include changes in calcium fluxes, ERK, and p21-activated kinase phosphorylation and NFkappaB activation. Two naturally occurring variants of the NK1R, the full-length, 407 aa receptor (NK1R-F) and the truncated, 311 aa isoform (NK1R-T), mediate the actions of SP. Receptor truncation partially disrupts signaling motifs of the carboxyl tail, a critical site for mediating NK1R signaling, resulting in a "less-efficient" receptor. Although NK1R-F is the predominant isoform in the central and peripheral nervous systems, NK1R-T is expressed in several tissues and cells, which include monocytes, NK cells, and T-cells. The SP binding domain is not affected by truncation and this site is identical in both NK1R receptor isoforms. However, while cells expressing NK1R-F respond to nanomolar concentrations of SP, monocyte and macrophage activation, mediated through NK1R-T, requires micromolar concentrations of SP in order to elicit signaling responses. Elevated plasma levels of SP are associated with increased inflammatory responses and NK1R antagonists reduce inflammation and cytokine production in vivo. This mini review presents and discusses the novel hypothesis that the expression of NK1R-T on immune system cells prevents immune activation in a milieu, which usually contains low concentrations of SP and, thus, maintains immune homeostasis. In contrast, in the activated neuronal microenvironment, when SP levels reach the threshold at tissue sites, SP promotes immune activation and modulates monocyte/macrophage polarization. PMID- 29345373 TI - Macrophage instructs neutrophil death. PMID- 29345374 TI - SHIP negatively regulates type II immune responses in mast cells and macrophages. AB - SHIP is a hematopoietic-specific lipid phosphatase that dephosphorylates PI3K generated PI(3,4,5)-trisphosphate. SHIP removes this second messenger from the cell membrane blunting PI3K activity in immune cells. Thus, SHIP negatively regulates mast cell activation downstream of multiple receptors. SHIP has been referred to as the "gatekeeper" of mast cell degranulation as loss of SHIP dramatically increases degranulation or permits degranulation in response to normally inert stimuli. SHIP also negatively regulates Mphi activation, including both pro-inflammatory cytokine production downstream of pattern recognition receptors, and alternative Mphi activation by the type II cytokines, IL-4, and IL 13. In the SHIP-deficient (SHIP-/- ) mouse, increased mast cell and Mphi activation leads to spontaneous inflammatory pathology at mucosal sites, which is characterized by high levels of type II inflammatory cytokines. SHIP-/- mast cells and Mphis have both been implicated in driving inflammation in the SHIP-/- mouse lung. SHIP-/- Mphis drive Crohn's disease-like intestinal inflammation and fibrosis, which is dependent on heightened responses to innate immune stimuli generating IL-1, and IL-4 inducing abundant arginase I. Both lung and gut pathology translate to human disease as low SHIP levels and activity have been associated with allergy and with Crohn's disease in people. In this review, we summarize seminal literature and recent advances that provide insight into SHIP's role in mast cells and Mphis, the contribution of these cell types to pathology in the SHIP-/- mouse, and describe how these findings translate to human disease and potential therapies. PMID- 29345375 TI - Understanding the regulation of APOBEC3 expression: Current evidence and much to learn. AB - The apolipoprotein B mRNA editing enzyme catalytic polypeptide-like 3 (APOBEC3) family of cytosine deaminases plays crucial roles in innate immunity through the ability of restricting viral replication by deamination and mutation of viral genomes. The antiviral function of these proteins was first discovered when research in the field of HIV infection revealed that one member of the family, namely APOBEC3G, restricts HIV infection in T lymphocytes and that the viral infectivity factor protein drives the proteosomal degradation of this enzyme, thus overriding its antiviral function. Recent advances in cancer genomics, together with biochemical characterization of the APOBEC3 enzymes, have now implicated some family members in somatic mutagenesis during carcinogenesis. While several studies investigated the downstream consequences of APOBEC3 expression and activity, either in the context of viral infection or tumorigenesis, little is known on the upstream mechanisms regulating APOBEC3 expression. Such knowledge would be of huge importance in developing innovative approaches to strengthen antiviral innate immunity on one side and to prevent cancer development on the other. This mini review summarizes research advances on the molecular mechanisms regulating the expression of APOBEC3 family members in selected immune cell populations and cancer cells. PMID- 29345377 TI - Flexoelectricity in Bones. AB - Bones generate electricity under pressure, and this electromechanical behavior is thought to be essential for bone's self-repair and remodeling properties. The origin of this response is attributed to the piezoelectricity of collagen, which is the main structural protein of bones. In theory, however, any material can also generate voltages in response to strain gradients, thanks to the property known as flexoelectricity. In this work, the flexoelectricity of bone and pure bone mineral (hydroxyapatite) are measured and found to be of the same order of magnitude; the quantitative similarity suggests that hydroxyapatite flexoelectricity is the main source of bending-induced polarization in cortical bone. In addition, the measured flexoelectric coefficients are used to calculate the (flexo)electric fields generated by cracks in bone mineral. The results indicate that crack-generated flexoelectricity is theoretically large enough to induce osteocyte apoptosis and thus initiate the crack-healing process, suggesting a central role of flexoelectricity in bone repair and remodeling. PMID- 29345376 TI - Role of negative regulation of immune signaling pathways in neutrophil function. AB - Polymorphonuclear neutrophils (PMNs) play a critical role in host defense against infection and in the resolution of inflammation. However, immune responses mediated by PMN must be tightly regulated to facilitate elimination of invading pathogens without inducing detrimental inflammation and host tissue damage. Specific engagement of cell surface immunoreceptors by a diverse range of extracellular signals regulates PMN effector functions through differential activation of intracellular signaling cascades. Although mechanisms of PMN activation mediated via cell signaling pathways have been well described, less is known about negative regulation of PMN function by immune signaling cascades. Here, we provide an overview of immunoreceptor-mediated negative regulation of key PMN effector functions including maturation, migration, phagocytosis, reactive oxygen species release, degranulation, apoptosis, and NET formation. Increased understanding of mechanisms of suppression of PMN effector functions may point to possible future therapeutic targets for the amelioration of PMN mediated autoimmune and inflammatory diseases. PMID- 29345378 TI - Self-Calibrating Mechanochromic Fluorescent Polymers Based on Encapsulated Excimer-Forming Dyes. AB - While mechanochemical transduction principles are omnipresent in nature, mimicking these in artificial materials is challenging. The ability to reliably detect the exposure of man-made objects to mechanical forces is, however, of great interest for many applications, including structural health monitoring and tamper-proof packaging. A useful concept to achieve mechanochromic responses in polymers is the integration of microcapsules, which rupture upon deformation and release a payload causing a visually detectable response. Herein, it is reported that this approach can be used to create mechanochromic fluorescent materials that show a direct and ratiometric response to mechanical deformation. This can be achieved by filling poly(urea-formaldehyde) microcapsules with a solution of a photoluminescent aggregachromic cyano-substituted oligo(p-phenylene vinylene) and embedding these particles in poly(dimethylsiloxane). The application of mechanical force by way of impact, incision, or tensile deformation opens the microcapsules and releases the fluorophore in the damaged area. Due to excimer formation, the subsequent aggregation of the dye furnishes a detectable fluorescence color change. With the emission from unopened microcapsules as built in reference, the approach affords materials that are self-calibrating. This new concept appears to be readily applicable to a range of polymer matrices and allows for the straightforward assessment of their structural integrity. PMID- 29345379 TI - Sphingolipids role in the regulation of inflammatory response: From leukocyte biology to bacterial infection. AB - Sphingolipids (SLs) are amphiphilic molecules mainly associated with the external leaflet of eukaryotic plasma membrane, and are structural membrane components with key signaling properties. Since the beginning of the last century, a large number of papers described the involvement of these molecules in several aspects of cell physiology and pathology. Several lines of evidence support the critical role of SLs in inflammatory diseases, by acting as anti- or pro-inflammatory mediators. They are involved in control of leukocyte activation and migration, and are recognized as essential players in host response to pathogenic infection. We propose here a critical overview of current knowledge on involvement of different classes of SLs in inflammation, focusing on the role of simple and complex SLs in pathogen-mediated inflammatory response. PMID- 29345380 TI - CIRP increases ICAM-1+ phenotype of neutrophils exhibiting elevated iNOS and NETs in sepsis. AB - Sepsis represents uncontrolled inflammation due to an infection. Cold-inducible RNA-binding protein (CIRP) is a stress-induced damage-associated molecular pattern (DAMP). A subset of neutrophils expressing ICAM-1+ neutrophils was previously shown to produce high levels of reactive oxygen species. The role of CIRP for the development and function of ICAM-1+ neutrophils during sepsis is unknown. We hypothesize that CIRP induces ICAM-1 expression in neutrophils causing injury to the lungs during sepsis. Using a mouse model of cecal ligation and puncture (CLP)-induced sepsis, we found increased expression of CIRP and higher frequencies and numbers of ICAM-1+ neutrophils in the lungs. Conversely, the CIRP-/- mice showed significant inhibition in the frequencies and numbers of ICAM-1+ neutrophils in the lungs compared to wild-type (WT) mice in sepsis. In vitro treatment of bone marrow-derived neutrophils (BMDN) with recombinant murine CIRP (rmCIRP) significantly increased ICAM-1+ phenotype in a time- and dose dependent manner. The effect of rmCIRP on increasing frequencies of ICAM-1+ neutrophils was significantly attenuated in BMDN treated with anti-TLR4 Ab or NF kappaB inhibitor compared, respectively, with BMDN treated with isotype IgG or DMSO. The frequencies of iNOS producing and neutrophil extracellular traps (NETs) forming phenotypes in rmCIRP-treated ICAM-1+ BMDN were significantly higher than those in ICAM-1- BMDN. Following sepsis the ICAM-1+ neutrophils in the lungs showed significantly higher levels of iNOS and NETs compared to ICAM-1- neutrophils. We further revealed that ICAM-1 and NETs were co-localized in the neutrophils treated with rmCIRP. CIRP-/- mice showed significant improvement in their survival outcome (78% survival) over that of WT mice (48% survival) in sepsis. Thus, CIRP could be a novel therapeutic target for regulating iNOS producing and NETs forming ICAM-1+ neutrophils in the lungs during sepsis. PMID- 29345381 TI - Durable lesion formation while avoiding esophageal injury during ablation of atrial fibrillation: Lessons learned from late gadolinium MR imaging. AB - INTRODUCTION: Adequate catheter/atrial tissue contact is critical for lesion formation during radiofrequency (RF) ablation of atrial fibrillation (AF). Late gadolinium enhancement magnetic resonance imaging (LGE-MRI) is a unique tool for the evaluation of lesion formation and detection of acute esophageal injury. METHODS: LGE-MRIs were obtained prior, within 24 hours of, and at 115 +/- 62 days after first AF ablation in 36 patients. The Visitag module of CARTO3 was used to collect contact force (CF) and duration from a CF sensing ablation catheter for each registered ablation point. The minimum CF resulting in permanent lesions was determined. Esophageal enhancement detected by acute LGE-MRI was classified as mild, moderate, and severe. The CF resulting in esophageal enhancement was determined. RESULTS: A total of 4,642 registered ablation tags at 50 W power were analyzed. The mean RF duration (5.9 +/- 3.7 vs. 5.6 +/- 3.2 seconds, P < 0.05), CF (11.5 +/- 5.6 vs. 10.9 +/- 5.4 g, P < 0.001), and force time integral (FTI) (67.3 +/- 54.5 vs. 62.2 +/- 52.7 gs, P < 0.01) were significantly higher between ablation tags with and without associated LGE-MRI detected scar. The mean CF (15.7 +/- 6.1 vs. 12.6 +/- 5.9 g, P < 0.05, n = 17 patients) in areas of esophageal enhancement was greater than areas without. CONCLUSION: Left atrial short duration ablation lesions with a CF greater than 12 g are more likely to be associated with permanent lesion formation. Ablating on top of the esophagus, CF less than 15 g would help minimize esophageal wall injury. PMID- 29345382 TI - Overweight and obesity in patients with atrial fibrillation: Sex differences in 1 year outcomes in the EORP-AF General Pilot Registry. AB - BACKGROUND: The impact of overweight and obesity on outcomes in "real world" patients with atrial fibrillation (AF) is not fully defined. Second, sex differences in AF outcomes may also exist. METHODS AND RESULTS: The aim was to investigate outcomes at 1 year follow-up for AF patients enrolled in the EORP-AF Registry, according to BMI (kg/m2 ), comparing patients with normal BMI (18.5 to < 25 kg/m2 ), overweight (25 to < 30 kg/m2 ) and obesity (>= 30 kg/m2 ), in relation to sex differences. Among 2,540 EORP AF patients (38.9% female; median age 69) with 1 year follow-up data available, 720 (28.3%) had a normal BMI, 1,084 (42.7%) were overweight, and 736 (29.0%) were obese. Obese patients were younger and with more prevalent diabetes mellitus and hypertension (P < 0. 001). One-year outcomes showed that all-cause mortality was significantly different according to BMI among female patients (9.3% normal BMI, 5.3% overweight, and 4.3 % obese, P = 0.023), but not among male patients (P = 0.748). The composite outcome of thromboembolic events and death was also significantly different, being lower in obese females (P = 0.035). Among male patients, bleeding events were significantly more frequent in obese subjects (P = 0.035). On multivariable Cox analysis, BMI was not independently associated with all-cause mortality. CONCLUSIONS: Among AF patients, overweight and obesity are common and associated with better outcomes in females (a finding previously reported as "obesity paradox"), while no significant differences in outcomes are detected among male patients. Final multivariable model found that increasing BMI was not associated with increased risk of all-cause death; conversely, age and comorbidities persisted as major determinants. PMID- 29345383 TI - Interesting mode of initiation of LBBB tachycardia: What is the mechanism? PMID- 29345384 TI - A Single-Molecule Propyne Trap: Highly Efficient Removal of Propyne from Propylene with Anion-Pillared Ultramicroporous Materials. AB - Propyne/propylene (C3 H4 /C3 H6 ) separation is a critical process for the production of polymer-grade C3 H6 . However, optimization of the structure of porous materials for the highly efficient removal of C3 H4 from C3 H6 remains challenging due to their similar structures and ultralow C3 H4 concentration. Here, it is first reported that hybrid ultramicroporous materials with pillared inorganic anions (SiF62- = SIFSIX, NbOF52- = NbOFFIVE) can serve as highly selective C3 H4 traps for the removal of trace C3 H4 from C3 H6 . Especially, it is revealed that the pyrazine-based ultramicroporous material with square grid structure for which the pore shape and functional site disposition can be varied in 0.1-0.5 A scale to match both the shape and interacting sites of guest molecule is an interesting single-molecule trap for C3 H4 molecule. The pyrazine based single-molecule trap enables extremely high C3 H4 uptake under ultralow concentration (2.65 mmol g-1 at 3000 ppm, one C3 H4 per unit cell) and record selectivity over C3 H6 at 298 K (>250). The single-molecule binding mode for C3 H4 within ultramicroporous material is validated by X-ray diffraction experiments and modeling studies. The breakthrough experiments confirm that anion-pillared ultramicroporous materials set new benchmarks for the removal of ultralow concentration C3 H4 (1000 ppm on SIFSIX-3-Ni, and 10 000 ppm on SIFSIX-2-Cu-i) from C3 H6 . PMID- 29345385 TI - Crucial role of Mer tyrosine kinase in the maintenance of SIGN-R1+ marginal zone macrophages. AB - Mer Tyrosine Kinase receptor (Mer) is involved in anti-inflammatory efferocytosis. Here we report elevated spontaneous germinal center (Spt-GC) responses in Mer-deficient mice (Mer-/- ) that are associated with the loss of SIGN-R1+ marginal zone macrophages (MZMs). The dissipation of MZMs in Mer-/- mice occurs independently of reduced cellularity or delocalization of marginal zone B cells, sinusoidal cells or of CD169+ metallophillic macrophages. We find that MZM dissipation in Mer-/- mice contributes to apoptotic cell (AC) accumulation in Spt GCs and dysregulation of the GC checkpoint, allowing an expansion of DNA-reactive B cells in GCs. We further observe that bone marrow derived macrophages from Mer /- mice produce more TNFalpha, and are susceptible to cell death upon exposure to ACs compared to WT macrophages. Anti-TNFalpha Ab treatment of Mer-/- mice is, however, unable to reverse MZM loss, but results in reduced Spt-GC responses, indicating that TNFalpha promotes Spt-GC responses in Mer-/- mice. Contrary to an anti-TNFalpha Ab treatment, treatment of Mer-/- mice with a synthetic agonist for the transcription factor LXRalpha rescues a significant number of MZMs in vivo. Our data suggest that Mer-LXRalpha signaling plays an important role in the differentiation and maintenance of MZMs, which in turn regulate Spt-GC responses and tolerance. PMID- 29345386 TI - Quinoline-Flanked Diketopyrrolopyrrole Copolymers Breaking through Electron Mobility over 6 cm2 V-1 s-1 in Flexible Thin Film Devices. AB - Herein, the design and synthesis of novel pi-extended quinoline-flanked diketopyrrolopyrrole (DPP) [abbreviated as QDPP] motifs and corresponding copolymers named PQDPP-T and PQDPP-2FT for high performing n-type organic field effect transistors (OFETs) in flexible organic thin film devices are reported. Serving as DPP-flankers in backbones, quinoline is found to effectively tune copolymer optoelectric properties. Compared with TDPP and pyridine-flanked DPP (PyDPP) analogs, widened bandgaps and strengthened electron deficiency are achieved. Moreover, both hole and electron mobility are improved two orders of magnitude compared to those of PyDPP analogs (PPyDPP-T and PPyDPP-2FT). Notably, featuring an all-acceptor-incorporated backbone, PQDPP-2FT exhibits electron mobility of 6.04 cm2 V-1 s-1 , among the highest value in OFETs fabricated on flexible substrates to date. Moreover, due to the widened bandgap and strengthened electron deficiency of PQDPP, n-channel on/off ratio over 105 with suppressed hole transport is first realized in the ambipolar DPP-based copolymers. PMID- 29345387 TI - Fortuitous benefits of living kidney donation: Diagnosis of serious medical conditions during the living donor evaluation. AB - BACKGROUND: All living kidney donors are counseled about the possible surgical and medical risks associated with donation. Only a minority of transplant centers discuss the potential benefit of discovering undiagnosed medical conditions in the donor during evaluation, as part of their consent process. METHODS: We retrospectively investigated all potential living kidney donors evaluated over a 10-year period at a single center to characterize incidentally diagnosed serious medical conditions. RESULTS: Sixty-five of the 762 potential donors (8.5%) were not approved for donation because of a newly diagnosed serious medical condition discovered during their evaluation. This included six patients diagnosed with malignancies, five of which required operative intervention, six patients diagnosed with transmittable diseases requiring follow-up and treatment, four patients were found to have bilateral renal stones with significant stone burden, and two patients diagnosed with IgA nephropathy. Additionally, four patients were diagnosed with significant heart disease, and one of those patients subsequently required a coronary artery bypass surgery. CONCLUSIONS: The evaluation process can diagnose serious medical conditions in a significant minority of donors that would have otherwise been unrecognized. The benefit associated with the donor evaluation should be considered an important part of the consent process. PMID- 29345388 TI - Dentin bond strength and nanoleakage of the adhesive interface after intracoronal bleaching. AB - This study evaluated dentin bond strength (BS) and nanoleakage of non- and pre etched dentin immediately (T0 ,), 7 days (T7 ), and 14 days (T14 ) after bleaching. Bovine incisors (150) were selected and half of them submitted to intrapulpal dentin etching (e). Non- and pre-etched dentin were subjected to the following (n = 15): no bleaching/control (C); 35% carbamide peroxide (CP); 35% hydrogen peroxide (35% HP); 25% hydrogen peroxide (25% HP); and sodium perborate (SP). Bleaching agents were applied to the pulp chamber four times within a 72-h interval. Afterwards, pulp chamber dentin was prepared for the BS test at different evaluation times (n = 5): T0 , T7 , and T14 . Composite blocks were built on pulp chamber and sectioned in slices. Slices were reduced to an hour glass shape with a cross-sectional area of 0.8 mm2 and submitted to microtensile BS test. Two additional specimens for each group were prepared for nanoleakage evaluation by transmission electron microscopy (TEM). Results were analyzed by ANOVA (two-way) and Dunnett's test (p < .05). BS decreased immediately after intracoronal bleaching for both sound and pre-etched dentin (p < .05). At T14 , the BS of non-etched bleached dentin increased for all groups, whereas the pre etched SPe group presented BS similar to the Ce. Nanoleakage within the hybrid layer was perceptible immediately after bleaching, although a decrease in nanoleakage was observed for all groups at T14 . Adhesive restorations should be performed 7-14 days after bleaching, according to the bleaching agent used. Intracoronal bleaching should be performed preferably with sodium perborate if previous dentin etching is applied. PMID- 29345389 TI - Percutaneous access to the heart: Nontraditional approaches for the electrophysiologist. PMID- 29345390 TI - Frontline Science: Wnt/beta-catenin pathway promotes early engraftment of fetal hematopoietic stem/progenitor cells. AB - The switch from fetal to adult hematopoietic stem/progenitor cells (HSPCs) is associated with profound changes in several genetic programs. Although HSPC ageing corresponds to alterations in Wnt signaling, relatively little is known about the relative roles of different Wnt signaling pathways in HSPC ontogeny. We hypothesized that proliferating fetal HSPCs would be more dependent on canonical beta-catenin-dependent Wnt signaling when compared to quiescent adult bone marrow HSPCs. We have compared here Wnt signaling activities in murine fetal and adult HSPCs and demonstrate a shift from Wnt/beta-catenin-dependent signaling in fetal liver HSPCs to more predominantly noncanonical Wnt/polarity signaling in adult HSPCs. beta-Catenin was selectively required for fetal HSPC competitiveness shortly after transplant, and protected cells from oxidative stress. Our results emphasize the complexity of Wnt signaling dynamics in HSPC maintenance and function. PMID- 29345391 TI - NPTX1 inhibits colon cancer cell proliferation through down-regulating cyclin A2 and CDK2 expression. AB - Colon cancer is the third most common malignancy and one of the leading causes of cancer-associated mortality worldwide. Neuronal pentraxin 1 (NPTX1) is associated with tumor progression in some types of tumors. However, its expression and role in colon cancer has not been yet reported. Here we observed that NPTX1 was down regulated in colon cancer. Additionally, we explored the functional significance of NPTX1 in colon cancer. We found that over-expression of NPTX1 inhibited colon cancer cell growth by performing MTT, colony formation, Edu corporation assays, and cell cycle analysis. In vivo mouse experiments also confirmed the anti proliferative role of NPTX1 in colon cancer. Further mechanistic study showed that over-expression of NPTX1 inhibited the expression of cyclin A2 and CDK2 in colon cancer cells, thereby regulating the Rb-E2F signaling. In summary, these findings reveal that NPTX1 suppress the colon cancer cell growth and might serve as a useful potential target for treatment of colon cancer. PMID- 29345392 TI - Who May Benefit From On-Demand Control of Deep Brain Stimulation? Noninvasive Evaluation of Parkinson Patients. AB - BACKGROUND: In closed-loop on-demand control (ODC) of deep brain stimulation (DBS), stimulation is applied only when symptoms appear. Following stimulation of a fixed duration, DBS is switched off until the symptoms reappear. By repeating these demand-driven cycles, the amount of stimulation delivered can be decreased, thereby reducing DBS side-effects and improving battery-life of the pulse generator. This article introduces Ro metric for quantification of degree of benefit of ODC and explores candidate selection in tremor-dominant Parkinson's disease (PD). METHOD: The study was performed on nine PD patients previously implanted with Medtronic DBS systems. Accelerometer sensor was placed on the tremor-dominant hand to detect onset of tremor. Fixed duration of stimulation (DS) of 20-80 sec was applied. Once the tremor was observed, stimulation was switched on. These trials were repeated during resting, postural, and kinetic conditions. Ro metric was calculated as the ratio of stimulation-off tremor-free period to the DS. Ro calculated at different DS were compared for each patient. RESULTS: We found that for each patient, Ro varied with DS and an optimal DS* gave a higher percentage of stimulation-off time. Average Ro at DS* varied from 0.554 to 4.24 for eight patients giving 35%-80% stimulation-off time. CONCLUSIONS: Ro values can be used for selection of optimal DS* in ODC. Three of nine patients were found to be tremor-free without stimulation for >50% of total time with even up to 80% in one patient. Patients with low Ro may not benefit from ODC in DBS, where the trade-off between having side-effects and using ODC system will need to be assessed. PMID- 29345393 TI - The Protective Effect of Spinal Cord Stimulation Postconditioning Against Spinal Cord Ischemia/Reperfusion Injury in Rabbits. AB - BACKGROUND: Delayed paraplegia due to spinal cord ischemia/reperfusion injury (IRI) remains one of the most severe complications of thoracoabdominal aneurysm surgery, for which effective prevention and treatment is still lacking. OBJECTIVES: The current study investigates whether spinal cord stimulation (SCS) postconditioning has neuroprotective effects against spinal cord IRI. METHOD: Ninety-six New Zealand white male rabbits were randomly divided into four groups as follows: a sham group and three experimental groups (C group, 2 Hz group, and 50 Hz group) n = 24/group. Spinal cord ischemia was induced by transient infrarenal aortic balloon occlusion for 28 min, after which rabbits in group C underwent no additional intervention, while rabbits in the other two experimental groups underwent 2 Hz or 50 Hz epidural SCS for 30 min at the onset of reperfusion and then daily until sacrifice. Hind limb neurologic function of rabbits was assessed using Jacob scale. Lumbar spinal cords were harvested immediately after sacrifice for histological examination and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) staining. The number of viable alpha-motor neurons in ventral horn was counted and TUNEL positive rate of alpha-motor neurons was calculated. RESULT: Spinal cord IRI was caused by transient infrarenal aorta occlusion for 28 min. Both 2 Hz and 50 Hz SCS postconditioning had neuroprotective effects, particularly the 2 Hz SCS postconditioning. Comparing to C group and 50 Hz group, rabbits in the 2 Hz group demonstrated better hind limb motor function and a lower rate of TUNEL-positive alpha-motor neuron after eight hours, one day, three days, and seven days of spinal cord reperfusion. More viable alpha-motor neurons were preserved after one and three days of spinal cord reperfusion in 2 Hz group rabbits than in C group and 50 Hz group rabbits. CONCLUSION: SCS postconditioning at 2 Hz protected the spinal cord from IRI. PMID- 29345394 TI - Viruses as key modulators of the TGF-beta pathway; a double-edged sword involved in cancer. AB - Transforming growth factor-beta (TGF-beta) signaling pathway is a key network in cell signaling that controls vital processes such as proliferation, differentiation, apoptosis, epithelial-mesenchymal transition, and migration, thus acting as a double-edged sword in normal development and diseases, in particular organ fibrosis, vascular disorders, and cancer. Early in tumorigenesis, the pathway exerts anti-tumor effects through suppressing cell cycle and inducing apoptosis, while during late stages, it functions as a tumor promoter by enhancing tumor invasiveness and metastasis. This signaling pathway can be perturbed by environmental and genetic factors such as microbial interference and mutation, respectively. In this way, the present review describes the modulation of the TGF-beta pathway by oncogenic human viral pathogens and other viruses. The main mechanisms by which viruses interferes with TGF-beta signaling seems to be through (1) the alteration of either TGF-beta protein expression or activation, (2) the modulation of the TGF-beta receptors or SMADs factors (by interfering with their levels and functions), (3) the alteration of none-SMAD pathways, and (4) indirect interaction with the pathway by the modulation of transcriptional co-activator/repressor and regulators of the pathway. Given the axial role of this pathway in tumorigenesis, it can be regarded as an attractive target for cancer therapy. Hence, further investigations on this subject may represent molecular targets among either TGF beta signaling molecules or viral factors for the treatment and management of viral infection consequences such as cancer. PMID- 29345395 TI - Patient, carer and public involvement in major system change in acute stroke services: The construction of value. AB - BACKGROUND: Patient and public involvement is required where changes to care provided by the UK National Health Service are proposed. Yet involvement is characterized by ambiguity about its rationales, methods and impact. AIMS: To understand how patients and carers were involved in major system changes (MSCs) to the delivery of acute stroke care in 2 English cities, and what kinds of effects involvement was thought to produce. METHODS: Analysis of documents from both MSC projects, and retrospective in-depth interviews with 45 purposively selected individuals (providers, commissioners, third-sector employees) involved in the MSC. RESULTS: Involvement was enacted through consultation exercises; lay membership of governance structures; and elicitation of patient perspectives. Interviewees' views of involvement in these MSCs varied, reflecting different views of involvement per se, and of implicit quality criteria. The value of involvement lay not in its contribution to acute service redesign but in its facilitation of the changes developed by professionals. We propose 3 conceptual categories-agitation management, verification and substantiation-to identify types of process through which involvement was seen to facilitate system change. DISCUSSION: Involvement was seen to have strategic and intrinsic value. Its strategic value lay in facilitating the implementation of a model of care that aimed to deliver evidence-based care to all; its intrinsic value was in the idea of citizen participation in change processes as an end in its own right. The concept of value, rather than impact, may provide greater traction in analyses of contemporary involvement practices. PMID- 29345396 TI - Performance, rumen fermentation and blood metabolites of dairy calves fed starter mixtures supplemented with herbal plants, essential oils or monensin. AB - This study evaluated the supplementation effects of three herbal plants (thyme [THY], eucalyptus [EUC] and celery [CEL]), a commercial phytogenic additive containing essential oils (PFA-EO, Digestarom(r) P.E.P.) and monensin (MON) in calf starter on performance, rumen fermentation and blood metabolites during pre- (days 3-55) and post-weaning (days 56-70). Sixty-six Holstein dairy calves (3 days of age, 41.2 +/- 3 kg of BW) were allocated to one of six starters supplemented with: (i) no additives (CON), (ii) MON (30 mg/kg), (iii) THY (23 g/kg), (iv) CEL (23 g/kg), (v) EUC (23 g/kg) and (vi) PFA-EO (3 g/kg). All the calves were offered starters ad libitum plus 6 L of whole milk daily. Starter intake tended to be the highest in calves fed PFA-EO and THY; intermediate in calves fed CON, MON and EUC; and the lowest in those fed CEL. Average daily gain (ADG) and feed efficiency (FE) remained unaffected by dietary treatments during the pre-weaning. During the post-weaning period, ADG and FE were greatest in calves fed EUC followed by those fed CON, MON, PFA-EO and THY, and then in those fed CEL. No differences were observed among the treatments in skeletal growth, faecal score, rumen pH or ammonia-N concentration. Compared to calves fed CON and MON, those fed the herbal plants or PFA-EO tended to recorded higher molar proportions of acetate and butyrate, and the acetate: propionate ratio. Blood malondialdehyde level did not differ among treatments, but calves on CON had the highest glucose concentration, and those fed PFA-EO recorded the highest value for beta-hydroxyl butyrate on day 70. In conclusion, the results indicate that the three herbs and PFA-EO are capable of modulating some of the rumen fermentation parameters and blood metabolites as well as eucalyptus could potentially be a better alternative to monensin for improving post-weaning performance. PMID- 29345397 TI - Characteristics of patients who progress from bridging to long-term oxygen therapy. AB - BACKGROUND: Patients with persistent hypoxia following an acute hospital admission may be discharged with 'bridging' domiciliary oxygen as per criteria defined by the Thoracic Society of Australia and New Zealand. The need for continuous long-term oxygen therapy (LTOT) is then reassessed at a clinic review 1-2 months later. AIM: To describe the characteristics of patients discharged from an acute hospital admission with continuous short-term oxygen therapy (STOT), and subsequently to investigate for differences between subjects who proceeded to qualify for continuous LTOT versus those who were able to cease STOT at review. METHODS: This is a retrospective cohort study involving all subjects discharged from Alfred Health between 2011 and 2015 inclusive with bridging domiciliary oxygen. Multiple biochemical, physiological and demographic characteristics were collated and analysed. RESULTS: Of all patients prescribed continuous STOT at time of discharge, 47.3% qualified for LTOT at outpatient review. This cohort had a significantly lower PaO2 measurement at time of discharge, compared with those who no longer qualified. CONCLUSION: PaO2 at time of discharge provides a signal with the potential to identify who will require continuous LTOT following an acute hospital admission. Additionally, this study highlights the need to re-evaluate patients' oxygen requirements during a period of clinical stability. PMID- 29345398 TI - Music reduces state anxiety scores in patients undergoing pleural procedures: a randomised controlled trial. AB - BACKGROUND: Patient anxiety is an often overlooked complication of pleural diagnostic and therapeutic procedures. Listening to music is effective in reducing patient anxiety in some endoscopy procedures but has not yet been evaluated in pleural procedures. AIM: To evaluate the benefits of music therapy during pleural procedures on a patient's anxiety, perceived pain and satisfaction with the procedure. METHODS: Consecutive patients undergoing therapeutic pleural procedures were randomised to music and control groups. Participants in the music group listened to self-selected music using ear-bud headphones for the duration of the procedure. State anxiety was assessed before and after the procedure using the State Trait Anxiety Inventory. Physiological parameters were also measured. RESULTS: Sixty patients were included in the study. In the music group, a reduction in state anxiety scores were observed post-procedure (34 +/- 11 vs 48 +/- 13, P < 0.001), while no change was observed in the control group (40 +/- 11 vs 42 +/- 11, P = 0.51). Participants in the music group had reductions in heart rate (87 +/- 17 vs 95 +/- 15, P = 0.04), systolic (121 +/- 13 vs 130 +/- 16, P = 0.02) and diastolic blood pressure (72 +/- 8 vs 78 +/- 9, P = 0.01) post procedure compared to the pre-procedures values. A similar change was not detected in the control group: heart rate (86 +/- 17 vs 85 +/- 15, P = 0.73), systolic (133 +/- 21 vs 134 +/- 20, P = 0.83) and diastolic blood pressure (77 +/ 9 vs 79 +/- 10, P = 0.30). There was no difference in patient pain scores (P = 0.8), willingness to undergo the procedure again (P= 0.27), satisfaction with the performance of the pleural procedure (P = 0.20) and duration of the procedure (P = 0.68) between the music and control groups. CONCLUSIONS: Listening to music appears to be beneficial in reducing anxiety in patients undergoing pleural procedures. PMID- 29345399 TI - Glycine improves the remodeling process of tenocytes in vitro. AB - Tendinitis changes the biochemical and morphological properties of the tendon, promoting an increase of activity of metalloproteinases and disorganization of collagen bundles. Tenocytes, the primary cells in tendon, are scattered throughout the collagenic fibers, and are responsible of tendon remodeling and tissue repair in pathological condition. In vivo, glycine, component of the typical Gly-X-Y collagen tripeptide, showed beneficial effects in biochemical and biomechanical properties of Achilles tendon with tendinitis. In this study, we analyzed the effect of glycine in tenocytes subjected to inflammation. Tenocytes from Achilles tendon of rats were treated with TNF-alpha (10 ng/mL) with and without previous treatment with glycine (20 mM). Cell proliferation and migration were evaluated, as well as the expression of matrix molecules such as glycosaminoglycans, metalloproteinases (MMPs), TIMPs, and collagen I. Glycine can revert the inflammation due to the action of TNF-alpha by controlling the MMPs quantity and activity. These data indicated that the molecules involved to remodeling process of extracellular matrix are modulated both by TNF-alpha and the availability of collagen precursors; in fact, this study indicates the glycine can be useful for treatment of inflammation and for modulating tenocytes metabolism in tendons. PMID- 29345400 TI - Fludrocortisone-a treatment for tubulopathy post-paediatric renal transplantation: A national paediatric nephrology unit experience. AB - Calcineurin inhibitors post-renal transplantation are recognized to cause tubulopathies in the form of hyponatremia, hyperkalemia, and acidosis. Sodium supplementation may be required, increasing medication burden and potentially resulting in poor compliance. Fludrocortisone has been beneficial in addressing tubulopathies in adult studies, with limited paediatric data available. A retrospective review of data from an electronic renal database from December 2014 to January 2016 was carried out. Forty-seven post-transplant patients were reviewed with 23 (49%) patients on sodium chloride or bicarbonate. Nine patients, aged 8.3 years (range 4.9-16.4), commenced fludrocortisone 22 months (range 1-80) after transplant and were followed up for 9 months (range 2-20). All patients stopped sodium bicarbonate; all had a reduction or no increase in total daily doses of sodium chloride. Potassium levels were significantly lower on fludrocortisone, 5.2 vs 4.5 mmol/L, P = .04. No difference was noted in renal function (eGFR 77.8 vs 81.7 mL/min/1.73 m2 , P = .45) and no significant increase in systolic blood pressure (z-scores 0.99 vs 0.85, P = .92). No side effects secondary to treatment with fludrocortisone were reported. A significant proportion of renal transplant patients were on sodium supplementation and fludrocortisone reduced sodium supplementation without significant effects on renal function or blood pressure. Fludrocortisone appears to be safe and effective for tubulopathies in children post-transplantation. PMID- 29345401 TI - Are characteristics of abdominal pain helpful to identify patients with visceral hypersensitivity in irritable bowel syndrome? Results of a prospective study. AB - BACKGROUND: Some consider that patients with visceral hypersensitivity may represent a separate entity within the IBS population not only from a pathophysiological but also from a clinical perspective. The aim of this prospective exploratory study was to assess whether characteristics of abdominal pain in IBS patients could be suggestive of hypersensitivity. METHODS: This prospective study included consecutive IBS patients selected by Rome III criteria. Validated scores (IBS-SSS, Bristol stool scale, HADS) were used to phenotype patients who were also asked to describe the main location of their abdominal pain on a simple image (abdomen divided into 6 zones). Progressive isobaric rectal distensions were performed to demonstrate, with the ascending method of limits, allodynia (pain threshold lower than 24 mmHg). KEY RESULTS: Fifty patients (women: 72%), 42.6 +/- 15.7 years old, were included. Sub-types were IBS-D, IBS-C and IBS-M in 58%, 22% and 20% of cases, respectively. Allodynia was present in 18% of cases. Neither IBS-SSS nor intensity of pain was predictive of hypersensitivity. In hypersensitive patients, pain was more often located in one of the two iliac fossa (P = 0.02) and located outside these areas in only 11% of cases. The sensitivity and the specificity of this pain location to differentiate hyper from normosensitive patients were 0.89 and 0.59, respectively. CONCLUSIONS & INFERENCES: The location of pain is different between hyper and normosensitive IBS patients. Pain located outside one of the two iliac fossa suggests that the patient is normosensitive. PMID- 29345402 TI - Association of long-term glycaemic control on tear break-up times and dry eye symptoms in Chinese patients with type 2 diabetes. AB - IMPORTANCE: Diabetes mellitus is known to be associated with dry eye syndrome (DES), but the effects of long-term glycaemic control on tear film metrics and dry eye symptoms are not known in the Chinese population. BACKGROUND: To evaluate tear film stability and dry eye symptoms and their associations with systemic risk factors in Chinese patients with type 2 diabetes mellitus (T2DM). DESIGN: Cross-sectional study set at the Lo Fong Siu Po Eye Centre (Grantham Hospital), Hong Kong. PARTICIPANTS: A total of 80 Chinese participants, aged 18 or above, with T2DM recruited from the specialist outpatient setting were included. METHODS: The Oculus Keratograph 5M (Oculus Inc., Wetzlar, Germany) was used to measure the non-invasive tear break-up time (NITBUT). Ocular symptoms were evaluated using the Ocular Surface Disease Index (OSDI). The association between OSDI, NITBUT and metabolic parameters relating to diabetes were evaluated using multiple linear regression. MAIN OUTCOME MEASURES: The associations between long term glycaemic control and NITBUT and OSDI scores. RESULTS: Stepwise multiple linear regression analysis revealed glycated haemoglobin to be the only significant independent variable for NITBUT (R2 = 0.099, P = 0.014) and OSDI (R2 = 0.062, P = 0.044) after controlling for potential confounders. The age-adjusted prevalence of DES was 20% (95% confidence interval: 11-30%) in the Chinese T2DM population. The odds of DES for increasing percentage of glycated haemoglobin was 1.49 (95% confidence interval: 1.03-2.17, P = 0.04). CONCLUSIONS AND RELEVANCE: Our findings highlight the importance of good glycaemic control as a modifiable risk factor for both dry eye symptoms and tear film instability in patients with T2DM. PMID- 29345403 TI - Improving patient adherence to secondary prevention medications 6 months after an acute coronary syndrome: observational cohort study. AB - BACKGROUND: Most patients are recommended secondary prevention pharmacotherapies following an acute coronary syndromes (ACS). AIM: To identify predictors of adherence at 6 months and strategies to improve adherence to these therapies. METHODS: Patients in the CONCORDANCE registry who were discharged on evidence based medications were stratified into those receiving >=75% ('adherent') or <75% ('non-adherent') of indicated medications at 6 months. Baseline characteristics, hospital and post-discharge care were compared between groups. Multivariable logistic analysis identified independent predictors of adherence. The relative contribution of each clinical or treatment factor to 'adherence' was determined using an adequacy measure method. RESULTS: Follow-up data were available for 6595 patients, 4492 (68.1%) of whom were 'adherent'. Clinical factors predictive of adherence included previous stroke, percutaneous coronary intervention (PCI) and hypertension (odds ratios (OR) 1.36-1.56); factors predictive of non-adherence included discharge diagnosis of non-ST-segment elevation myocardial infarction (vs unstable angina) (OR 0.51) and atrial fibrillation (OR 0.59). Discharge on >=75% of indicated medications was a strong predictor of adherence at 6 months (OR 10.23, 95% confidence interval 7.89-13.27); in-hospital management factors predicting non-adherence were medical management alone (OR 0.34) and coronary artery bypass graft (OR 0.50) (both vs PCI). Post-discharge predictors of adherence included cardiac rehabilitation (OR 1.36) and general practitioner attendance (OR 1.40). CONCLUSION: Failure to discharge patients on indicated therapies is the most important modifiable predictor of adherence failure 6 months after an ACS. Implementing protocols to automate prescription of indicated discharge therapies, has the potential to reduce non-adherence dramatically in the 6 months following discharge. PMID- 29345404 TI - Individual variability in response to renin angiotensin aldosterone system inhibition predicts cardiovascular outcome in patients with type 2 diabetes: A primary care cohort study. AB - AIMS: To assess variability in systolic blood pressure (SBP) and albuminuria (urinary albumin creatinine ratio [UACR]) responses in patients with type 2 diabetes mellitus initiating renin angiotensin aldosterone system (RAAS) inhibition, and to assess the association of response variability with cardiovascular outcomes. MATERIAL AND METHODS: We performed an observational cohort study in patients with type 2 diabetes who started RAAS inhibition between 2007 and 2013 (n = 1600). Patients were identified from general practices in the Netherlands. Individual response in SBP and UACR was assessed during 15 months' follow-up. Patients were categorized as: good responders (?SBP <0 mm Hg and ?UACR <0%); intermediate responders (?SBP <0 mm Hg and ?UACR >0% or ?SBP >0 mm Hg and ?UACR <0%); or poor responders (?SBP >0 mm Hg and ?UACR >0%). Multivariable Cox regression was performed to test the association between initial RAAS inhibition response and subsequent cardiovascular outcomes. RESULTS: After starting RAAS inhibition, the mean SBP change was -13.2 mm Hg and the median UACR was -36.6%, with large between-individual variability, both in SBP [5th to 95th percentile: 48.5-20] and UACR [5th to 95th percentile: -87.6 to 171.4]. In all, 812 patients (51%) were good responders, 353 (22%) had a good SBP but poor UACR response, 268 (17%) had a good UACR but poor SBP response, and 167 patients (10%) were poor responders. Good responders had a lower risk of cardiovascular events than poor responders (hazard ratio 0.51, 95% confidence interval 0.30-0.86; P = .012). CONCLUSIONS: SBP and UACR response after RAAS inhibition initiation varied between and within individual patients with type 2 diabetes treated in primary care. Poor responders had the highest risk of cardiovascular events, therefore, more efforts are needed to develop personalized treatment plans for these patients. PMID- 29345405 TI - Abdominal paracentesis: use of a standardised procedure checklist and equipment kit improves procedural quality and reduces complications. AB - BACKGROUND: Paracentesis is a common invasive procedure performed by junior doctors. Audit of procedure conduct at two New Zealand hospitals in 2012 revealed poor performance across a range of quality measures, including documentation of informed consent, excessive catheter dwell times and inappropriate albumin prescription. Complication rates were 12.7%, compared with published rates of around 9%. A local procedure protocol did not exist. AIM: To evaluate the effect of a standardised procedure checklist (PC) and equipment kit (EK) on procedural quality and complication rates for abdominal paracentesis. METHODS: After presenting the 2012 audit results to resident doctors, we reviewed the paracentesis literature and developed a local procedure protocol (PC and EK). These tools were made readily available after an education campaign. Paracenteses performed after the intervention were studied to determine the impact on procedural quality and safety. RESULTS: Seventy-four paracenteses (14 diagnostic; 60 therapeutic) were performed in 10 months after the introduction of PC and EK. Significant improvements were observed with the use of PC including documentation of informed consent (97% vs 74%, P = <0.01) and aseptic technique (100% vs 62%, P = <0.01). Catheter dwell times <6 h improved (72% vs 48%, P = 0.02). Inappropriate albumin prescriptions were less frequent (21% vs 66%, P = <0.01). Complication rates decreased from 12.7% to 2.8% (P = <0.01). CONCLUSIONS: The PC and EK improved rates of informed consent, appropriate documentation and protocol adherence. Significantly fewer procedure-related complications occurred after introduction of these tools. PMID- 29345406 TI - Helicobacter pylori infection and occurrence of celiac disease in subjects HLA DQ2/DQ8 positive: A prospective study. AB - BACKGROUND: Celiac disease (CD) occurs in subjects positive for HLA-DQ2 and/or DQ8 gene loci at any age following ingestion of gluten-containing food. An increased permeability of the mucosa allows interactions between gliadin macromolecules and genetic factors. It has been observed that Helicobacter pylori has the ability to modulate the integrity of the duodenal epithelium. We aimed to determine whether H. pylori infection may enhance the occurrence of CD in genetically susceptible subjects. MATERIALS AND METHODS: This was a prospective observational study. Patients undergoing upper endoscopy for any reason and positive for HLA-DQ2 and/or DQ8 haplotypes with or without CD were included. H. pylori infection was defined as a positive gastric histopathology and/or 13C-urea breath test. Prevalence of infection was compared between enrolled subjects with and without CD. Multiple logistic regression analysis, adjusting odds ratios for patient age, gender, smoking habit, residency, body mass index, and assumption of nonsteroidal anti-inflammatory drugs (NSAIDs) and proton-pump inhibitors (PPIs) were performed. RESULTS: A total of 397 genetically susceptible individuals (mean age: 37.7 +/- 15.3 years; 86% women) were enrolled between October 2014 and October 2017. There were 265 (68%) patients with a diagnosis of CD. Overall, the prevalence of H. pylori infection was 33% and was similar in patients with and without CD (32% vs 36%). Adjustment for all covariates did not reveal any significant association, although adjusted odds ratio (OR) for CD was higher in female (OR = 1.302), in patients H. pylori positive (OR = 1.277), followed by use of NSAIDs (OR = 1.126), respectively. The use of PPIs appeared to be mildly protective against CD (OR = 0.644). CONCLUSION: Our study did not reveal any significant relationship between H. pylori and CD risk, even taking into account other confounders. More importantly, our findings do not support a "protective" role of H. pylori infection against CD, as previously reported. Therefore, there are no reasons to avoid eradication of H. pylori also in subject genetically susceptible for CD. PMID- 29345407 TI - Hepatitis C eradication with DAA and risk of liver cancer recurrence: The debate unrests. PMID- 29345408 TI - The effect of eradication of Helicobacter pylori on gastric cancer prevention in healthy asymptomatic populations. AB - BACKGROUND: Although many epidemiologic studies have evaluated the effect of Helicobacter pylori eradication on gastric cancer, the effect is still uncertain in general populations. We evaluated whether H. pylori eradication would affect the incidence of gastric cancer in healthy asymptomatic populations. MATERIALS AND METHODS: We performed a retrospective cohort study in 38 984 asymptomatic individuals, who underwent health screening examinations more than twice between 2005 and 2016. We investigated the incidence of gastric cancer among 3 groups: those without H. pylori infection (Hp-negative group), those with H. pylori eradication (eradication group), and those without H. pylori eradication (non eradication group). RESULTS: The cumulative incidence of gastric cancer was 54.5 cases per 100 000 person-years during a median of 6.4 years. In a multivariate analysis using the Cox proportional hazard model, the cumulative incidence of gastric cancer in the non-eradication group was significantly higher than those in the Hp-negative (hazard ratio [HR] 4.12, P < .001) and eradication groups (HR 2.73, P = .001). However, the cumulative incidence of gastric cancer was not significantly different between the eradication and Hp-negative groups. Other risk factors for gastric cancer occurrence were age, smoking, family history of gastric cancer, and gastric atrophy. The standardized incidence ratios of the age groups above 40 and below 70 in the eradication group were all significantly decreased. CONCLUSIONS: Helicobacter pylori eradication reduced the cumulative incidence of gastric cancer in healthy asymptomatic population, and the effect of H. pylori eradication on the prevention of gastric cancer was observed in all ages. PMID- 29345409 TI - How I investigate monocytosis. AB - Monocytosis is a common finding that is caused by a wide variety of neoplastic and non-neoplastic conditions. The adequate evaluation of monocytosis involves the integration of laboratory data, morphology, clinical findings, and the judicious use of ancillary studies. We review the literature on monocytosis, including the 2017 revised 4th edition of the World Health Organization classification of hematopoietic neoplasms. We present a review of monocytosis with practical guidelines on how to approach both routine and challenging cases. PMID- 29345410 TI - High-Resolution Three-Dimensional Computed Tomography Reconstruction as First Line Imaging Modality to Detect Intrathecal Catheter Malfunction. PMID- 29345411 TI - Ethnicity, socioeconomic status and the severity and course of non-cystic fibrosis bronchiectasis. AB - BACKGROUND AND AIMS: This study evaluated whether there are ethnic factors which affect the severity and progression of bronchiectasis in our adult multi-ethnic population in Auckland, New Zealand. METHODS: Clinical records were reviewed from patients attending the outpatient facilities of our institution between 2007 and 2010. Data collected included demographics, clinical features, smoking status, self-reported ethnicity, socioeconomic status (NZDep), pulmonary function and sputum microbiology. RESULTS: A total of 437 patients was identified: median age 65 years, 66% female, mean forced expiratory volume in the first second (FEV1 ) 62.4% predicted, and 10.5% of patients had recurrent growth of Pseudomonas aeruginosa. Patients of Maori and Pacific ethnicity were overrepresented compared to the institution population catchment and had more severe impairment of lung function: mean % predicted FEV1 for Pacific 52.0, Maori 58.6, European 68.6, Asian 64.2 (P < 0.0001). This was independent of socioeconomic status. However, no overall decline was seen in serial lung function measurements, either across the whole cohort or in any particular ethnic group. CONCLUSIONS: Patients of Maori and Pacific ethnicity are both overrepresented and have more severe bronchiectasis in this cohort, independent of socioeconomic status. Ethnicity did not predict decline in pulmonary function. Further studies into genetic predisposition to bronchiectasis in Maori or Pacific people may be warranted. PMID- 29345412 TI - WNT5A promotes migration and invasion of human osteosarcoma cells via SRC/ERK/MMP 14 pathway. AB - WNT5A, a representative ligand of activating several non-canonical WNT signal pathways, plays significant roles in oncogenesis and tumor inhibition. It has been shown that the non-receptor tyrosine kinase SRC is required for WNT5A induced invasion of osteosarcoma cells. However, the precise molecular mechanism underlying WNT5A/SRC-mediated osteosarcoma cells invasion remains poorly defined. The study was designed to explore the role of ERK1/2 in WNT5A/SRC-induced osteosarcoma cells invasion and the downstream target of the SRC/ERK1/2 signalings. We found that WNT5A (100 ng/mL) remarkably stimulated migration and invasion of human osteosarcoma MG-63 cells, whereas inhibiting either SRC kinase activity by siRNA-mediated SRC silence or ERK1/2 phosphorylation by PD98059 treatment suppressed these effects, which suggested that the activation of SRC and ERK1/2 is essential for WNT5A-induced MG-63 cells migration and invasion. Furthermore, ERK1/2 phosphorylation induced by WNT5A was dramatically blocked by SRC siRNA. Additionally, our study further demonstrated that MMP-14 was upregulated after exposure to WNT5A in MG-63 cells, and the increased expression was blocked by SRC siRNA or PD98059. Collectively, these results indicate that WNT5A activates SRC/ERK1/2 signal pathway, leading to the upregulation of MMP-14 expression and MG-63 cells migration and invasion. PMID- 29345413 TI - Hepatitis B screening before rituximab therapy: a multicentre South Australian study of adherence. AB - BACKGROUND: International guidelines recommend screening for hepatitis B virus (HBV) infection prior to administration of rituximab, due to high risk of HBV reactivation in at-risk patients. AIMS: To determine: (i) adherence to the South Australian (SA) protocol for HBV screening; (ii) HBV prevalence in patients receiving rituximab; and (iii) outcomes of patients at risk of HBV reactivation. METHODS: All patients commenced on rituximab at the six major SA public hospitals during a 12-month period were included in the study. Adherence was assessed by documentation of both hepatitis B surface antigen (HBsAg) and hepatitis B core antibody (HBcAb) prior to initiation of rituximab. Patients were observed for a minimum of 6 months following rituximab initiation. RESULTS: Four hundred and thirty eight patients were included in the study. The main indication for rituximab therapy was haematological malignancy (76.0%). Two hundred and nine (47.7%) failed to receive appropriate HBV screening, 86 (19.6%) had neither HBsAg nor HBcAb performed, and 119 (27.2%) had only HBsAg performed. The identified prevalence of at-risk cases (either HBsAg- or HBcAb-positive) within the study population was 4.6% (20/438 cases). One case of HBV reactivation was identified, but none led to acute liver failure, transplantation or death. CONCLUSIONS: Poor adherence to HBV screening protocols suggests the need for targeted clinician education and system redesign. While the rate of reactivation was low, the prevalence of at-risk patients in this population was high and justifies further initiatives to increase adherence rates to HBV screening pre-rituximab. PMID- 29345414 TI - Molecular characterization of a series of 990 index patients with albinism. AB - Albinism is a clinically and genetically heterogeneous disease characterized by variable degrees of hypopigmentation and by nystagmus, foveal hypoplasia, and chiasmatic misrouting of the optic nerves. The wide phenotypic heterogeneity impedes the establishment of phenotype-genotype correlations. To obtain a precise diagnosis, we screened the 19 known albinism genes in 990 index patients using targeted next-generation sequencing (NGS) and high-resolution comparative genomic hybridization. A molecular diagnosis was obtained in 72.32% of patients. A total of 243 new pathogenic variants were identified. Intragenic rearrangements represented 10.8% of all pathogenic alleles. NGS panel analysis allowed establishing a diagnosis for the rarest forms of the disease, which could not be diagnosed otherwise. Because of the clinical overlap between the different forms of the disease, diagnosis nowadays clearly relies on molecular grounds. PMID- 29345415 TI - Investigating Complications Associated With Occipital Nerve Stimulation: A MAUDE Study. AB - OBJECTIVES: The objectives of this study are to utilize the MAUDE data base to enhance our understanding of the complication profile for Occipital Nerve Stimulation, a therapy for which the current level of evidence is limited. Additionally, it is our objective to describe a systematic approach to processing the MAUDE data, which addresses its flaws and enhances its utility. METHODS: From the FDA website, we accessed adverse events reports from the MAUDE data base for devices used in Occipital Nerve Stimulation between June 30, 2007 and June 30, 2017. All reports were sorted into an overall classification for types of adverse events, types of patient complaints, and types of specific device-related complications. We then evaluated for the total number of adverse event reports that contained each of the patient complains and device-related complications. RESULTS: A total of 1233 adverse event records were obtained. Eight hundred twenty-two records were classified as surgically manageable post-operative complications, 121 as device malfunction, 29 as patient compliance issues, and 27 as intra-operative complications. Two hundred thirty-seven records were not classified. A total of 683 records contained patient complaints including 467 complaints of ineffective stimulation, 122 complaints of inappropriate or over stimulation, 50 complaints of device-shock, and 44 complaints of IPG site pain. We found 581 post-operative device-related complications, which included 206 instances of lead migration, 157 reports of lead erosion, 155 infections, 46 lead fractures, and 17 lead disconnections. CONCLUSION: The MAUDE data base is a useful tool to investigate device related complications and helps fill the current gap in ONS data. Reviewing the types and frequencies of complications reported over the years allows clinicians with less personal experience to have a more realistic expectation of complications and make informed decisions based on the patient's unique needs. Additionally, patient complaint data are useful in establishing more realistic expectations for patient outcomes. PMID- 29345416 TI - A qualitative study: experiences of stigma by people with mental health problems. AB - OBJECTIVES: Prior research has examined various components involved in the impact of public and internalized stigma on people with mental health problems. However, studies have not previously investigated the subjective experiences of mental health stigma by those affected in a non-statutory treatment-seeking population. DESIGN: An in-depth qualitative study was conducted using thematic analysis to investigate the experiences of stigma in people with mental health problems. METHODS: Eligible participants were recruited through a local mental health charity in the North West of England. The topic of stigma was examined using two focus groups of thirteen people with experience of mental health problems and stigma. RESULTS: Two main themes and five subthemes were identified. Participants believed that (1) the 'hierarchy of labels' has a profound cyclical impact on several levels of society: people who experience mental health problems, their friends and family, and institutional stigma. Furthermore, participants suggested (2) ways in which they have developed psychological resilience towards mental health stigma. CONCLUSIONS: It is essential to utilize the views and experiences gained in this study to aid understanding and, therefore, develop ways to reduce the negative impact of public and internal stigma. PRACTITIONER POINTS: People referred to their mental health diagnosis as a label and associated that label with stigmatizing views. Promote awareness and develop improved strategies (e.g., training) to tackle the cyclical impact of the 'hierarchy of labels' on people with mental health problems, their friends and family, and institutional stigma. Ensure the implementation of clinical guidelines in providing peer support to help people to combat feeling stigmatized. Talking about mental health in psychological therapy or health care professional training helped people to take control and develop psychological resilience. PMID- 29345417 TI - Catheter-based edge-to-edge mitral valve repair for pulmonary pressure reduction and to postpone heart transplantation in a teenaged patient. AB - We report a case of catheter-based edge-to-edge mitral valve repair in a teenage male patient with non-ischaemic cardiomyopathy to improve pulmonary hypertension secondary to severe functional mitral regurgitation (FMR) to defer anticipated heart transplantation. A 19-year-old patient with previous history of fulminant myocarditis followed by markedly left ventricular dysfunction presented with severe mitral regurgitation 3 years after initial recovery. Slightly over time, deterioration of FMR was associated with gradual increase in pulmonary artery pressures despite optimal medical therapy. MitraClip implantation in this young patient was successfully performed with sustainable improvement of pulmonary hypertension. PMID- 29345418 TI - Welcome to the New Editorial Board Members. AB - We warmly welcome our new Editorial Board members Matthias Bickelhaupt, Sally Brooker, Xiaoming Feng, Mikiko Sodeoka, and Takafumi Ueno. PMID- 29345419 TI - Targeting the BCL2 Gene Promoter G-Quadruplex with a New Class of Furopyridazinone-Based Molecules. AB - Targeting of G-quadruplex-forming DNA in the BCL2 gene promoter to inhibit the expression of anti-apoptotic Bcl-2 protein is an attractive approach to cancer treatment. So far, efforts made in the discovery of molecules that are able to target the BCL2 G-quadruplex have succeeded mainly in the identification of ligands with poor drug-like properties. Here, a small series of furo[2,3 d]pyridazin-4(5H)-one derivatives were evaluated as a new class of drug-like G quadruplex-targeting compounds. Biophysical studies showed that two derivatives could effectively bind to BCL2 G-quadruplex with good selectivity. Moreover, one such ligand was found to appreciably inhibit BCL2 gene transcription, with a substantial decrease in protein expression levels, and also showed significant cytotoxicity toward the Jurkat human T-lymphoblastoid cell line. PMID- 29345420 TI - Integration of Gas Enhanced Oil Recovery in Multiphase Fermentations for the Microbial Production of Fuels and Chemicals. AB - In multiphase fermentations where the product forms a second liquid phase or where solvents are added for product extraction, turbulent conditions disperse the oil phase as droplets. Surface-active components (SACs) present in the fermentation broth can stabilize the product droplets thus forming an emulsion. Breaking this emulsion increases process complexity and consequently the production cost. In previous works, it has been proposed to promote demulsification of oil/supernatant emulsions in an off-line batch bubble column operating at low gas flow rate. The aim of this study is to test the performance of this recovery method integrated to a fermentation, allowing for continuous removal of the oil phase. A 500 mL bubble column is successfully integrated with a 2 L reactor during 24 h without affecting cell growth or cell viability. However, higher levels of surfactants and emulsion stability are measured in the integrated system compared to a base case, reducing its capacity for oil recovery. This is related to release of SACs due to cellular stress when circulating through the recovery column. Therefore, it is concluded that the gas bubble-induced oil recovery method allows for oil separation and cell recycling without compromising fermentation performance; however, tuning of the column parameters considering increased levels of SACs due to cellular stress is required for improving oil recovery. PMID- 29345421 TI - Synthesis of Histidine-Containing Oligopeptides via Histidine-Promoted Peptide Ligation. AB - Histidine-containing peptides are valuable therapeutic agents for a treatment of neurodegenerative diseases. However, the synthesis of histidine-containing peptides is not trivial due to the potential of imidazole sidechain of histidine to act as a nucleophile if unprotected. A peptide ligation method utilizing the imidazole sidechain of histidine has been developed. The key imidazolate intermediate that acts as an internal acyl transfer catalyst during ligation is generated by deprotonation. Transesterification with amino acids or peptides tethered with C-terminal thioester followed by N->N acyl shifts led to the final ligated products. A range of histidine-containing dipeptides could be synthesized in moderate to good yields via this method without protecting the imidazole sidechain. The protocol was further extended to tripeptide synthesis via a long range N->N acyl transfer, and tetrapeptide synthesis. PMID- 29345422 TI - Cantharidic acid induces apoptosis of human leukemic HL-60 cells via c-Jun N terminal kinase-regulated caspase-8/-9/-3 activation pathway. AB - Cantharidin, a natural toxin from blister beetles, has shown potent anticancer activities on many solid tumor cells. Recently, cantharidin and its analogue, norcantharidin, were also shown to suppress nonsolid tumors such as chronic myeloid leukemia, acute myeloid leukemia (AML), and leukemic stem cells. However, there is no available information to address the effects of cantharidic acid (CAC), a hydrolysis product of cantharidin, on human AML cells. The present study showed that CAC, at a range of concentrations (0-20 MUM), concentration dependently inhibited cell proliferation in the HL-60 AML cell line. Western blot and flow cytometric assays demonstrated that CAC induced several features of apoptosis such as sub G1-phase cell increase, phosphatidylserine (PS) externalization, and significantly activated proapoptotic signaling including caspase-8, -9, and -3 activation and poly(ADP-ribose) polymerase (PARP) cleavage in HL-60 AML cells. Moreover, treatment of HL-60 cells with CAC induced concentration- and time- dependent activation of p38 mitogen-activated protein kinase (p38 MAPK) and c-Jun N-terminal kinase (JNK). Only JNK-, but not p38 MAPK specific inhibitor can reverse the CAC-induced activation of the caspase-8, -9, and -3. We concluded that CAC can induce apoptosis in human leukemic HL-60 cells via a caspases-dependent pathway, and that the apoptosis-inducing effect of CAC can be regulated by JNK activation signaling. PMID- 29345423 TI - Deep Eutectic Solvent Aqueous Solutions as Efficient Media for the Solubilization of Hardwood Xylans. AB - This work contributes to the development of integrated lignocellulosic-based biorefineries by the pioneering exploitation of hardwood xylans by solubilization and extraction in deep eutectic solvents (DES). DES formed by choline chloride and urea or acetic acid were initially evaluated as solvents for commercial xylan as a model compound. The effects of temperature, molar ratio, and concentration of the DES aqueous solutions were evaluated and optimized by using a response surface methodology. The results obtained demonstrated the potential of these solvents, with 328.23 g L-1 of xylan solubilization using 66.7 wt % DES in water at 80 degrees C. Furthermore, xylans could be recovered by precipitation from the DES aqueous media in yields above 90 %. The detailed characterization of the xylans recovered after solubilization in aqueous DES demonstrated that 4-O-methyl groups were eliminated from the 4-O-methylglucuronic acids moieties and uronic acids (15 %) were cleaved from the xylan backbone during this process. The similar Mw values of both pristine and recovered xylans confirmed the success of the reported procedure. DES recovery in four additional extraction cycles was also demonstrated. Finally, the successful extraction of xylans from Eucalyptus globulus wood by using aqueous solutions of DES was demonstrated. PMID- 29345424 TI - A Fluorescence-Based Sensor Assay that Monitors General Protein Aggregation in Human Cells. AB - Protein conformational disorders are characterized by disruption of protein folding and toxic accumulation of protein aggregates. Here we describe a sensitive and simple method to follow and monitor general protein aggregation in human cells. Heat shock protein 27 (HSP27) is an oligomeric small heat shock protein that binds and keeps unfolded proteins in a folding competent state. This high specificity of HSP27 for aggregated proteins can be explored to monitor aggregation in living cells by fusing it to a fluorescent protein as Green Fluorescent Protein (GFP). We have constructed a HeLa stable cell line expressing a HSP27:GFP chimeric reporter protein and after validation, this stable cell line is exposed to different agents that interfere with proteostasis, namely Arsenite, MG132, and Abeta-peptide. Exposure to proteome destabilizers lead to re localization of HSP27:GFP fluorescence to foci, confirming that our reporter system is functional and can be used to detect and follow protein aggregation in living cells. This reporter is a valuable tool to setup wide-genetic screens to identify genes and pathways involved in protein misfolding and aggregation. PMID- 29345425 TI - Eligibility of sacubitril-valsartan in a real-world heart failure population: a community-based single-centre study. AB - AIMS: This study aims to investigate the eligibility of the Prospective Comparison of Angiotensin Receptor-Neprilysin Inhibitor (ARNI) with ACE inhibitor to Determine Impact on Global Mortality and Morbidity in Heart Failure (PARADIGM HF) study to a real-world heart failure population. METHODS AND RESULTS: Medical records of all heart failure patients living within the catchment area of Umea University Hospital were reviewed. This district consists of around 150 000 people. Out of 2029 patients with a diagnosis of heart failure, 1924 (95%) had at least one echocardiography performed, and 401 patients had an ejection fraction of <=35% at their latest examination. The major PARADIGM-HF criteria were applied, and 95 patients fulfilled all enrolment criteria and thus were eligible for sacubitril-valsartan. This corresponds to 5% of the overall heart failure population and 24% of the population with ejection fraction <= 35%. The eligible patients were significantly older (73.2 +/- 10.3 vs. 63.8 +/- 11.5 years), had higher blood pressure (128 +/- 17 vs. 122 +/- 15 mmHg), had higher heart rate (77 +/- 17 vs. 72 +/- 12 b.p.m.), and had more atrial fibrillation (51.6% vs. 36.2%) than did the PARADIGM-HF population. CONCLUSIONS: Only 24% of our real-world heart failure and reduced ejection fraction population was eligible for sacubitril-valsartan, and the real-world heart failure and reduced ejection fraction patients were significantly older than the PARADIGM-HF population. The lack of data on a majority of the patients that we see in clinical practice is a real problem, and we are limited to extrapolation of results on a slightly different population. This is difficult to address, but perhaps registry-based randomized clinical trials will help to solve this issue. PMID- 29345426 TI - Single-dose intravenous iron in Southeast Asian heart failure patients: A pilot randomized placebo-controlled study (PRACTICE-ASIA-HF). AB - AIMS: Iron deficiency is highly prevalent in Southeast Asians with heart failure (HF) and associated with worse outcomes. This trial aimed to assess the effect of intravenous iron in Southeast Asians hospitalized with decompensated HF. METHODS AND RESULTS: Fifty patients hospitalized for acute decompensated HF, regardless of ejection fraction, with iron deficiency (defined as serum ferritin <300 ng/mL if transferrin saturation is <20%) were randomized to receive either one dose of intravenous ferric carboxymaltose (FCM) 1000 mg or placebo (0.9% saline) following HF stabilization and before discharge in two Singapore tertiary centres. The primary endpoint was difference in 6-min walk test (6MWT) distance over 12 weeks, while secondary endpoints were quality of life assessed using validated Kansas City Cardiomyopathy Questionnaire (KCCQ) and Visual Analogue Scale (VAS). Improvement in 6MWT distance at Week 12 was observed in both FCM and placebo groups (from 252 +/- 123 to 334 +/- 128 m and from 243 +/- 67 to 301 +/- 83 m, respectively). Unadjusted analysis showed 6MWT distance for FCM exceeded that for placebo, but adjustment for baseline covariates and time attenuated this effect {adjusted mean difference between groups: 0.88 m [95% confidence interval (CI) -30.2 to 32.0, P = 0.956]}. KCCQ overall summary and VAS were similar in both groups [adjusted mean difference: KCCQ -1.48 (95% CI -8.27 to 5.31, P = 0.670) and VAS 0.26 (95% CI -0.33 to 0.86, P = 0.386)]. FCM was well tolerated with no serious treatment-related adverse events. CONCLUSIONS: Intravenous FCM administered pre-discharge in Southeast Asians hospitalized with decompensated HF is clinically feasible. Changes in 6MWT distance should be measured beyond Week 12 to account for background therapy effects. PMID- 29345427 TI - Review article: Best practice management of common shoulder injuries and conditions in the emergency department (part 4 of the musculoskeletal injuries rapid review series). AB - Shoulder injuries are a commonly presenting complaint to the ED. In the absence of an obvious deformity, they can be difficult to assess and definitively diagnose because of the multiple structures that cause shoulder pain, the acuity and severity of pain and the lack of range of motion in the ED setting. The quality of ED care provided to patients with musculoskeletal shoulder pain is crucial to ensure the best possible outcomes for the patient. This rapid review investigated best practice for the assessment and management of common shoulder injuries and conditions in the ED. Databases were searched in 2017, including PubMed, CINAHL, EMBASE, TRIP and the grey literature, including relevant organisational websites. Primary studies, systematic reviews and guidelines published in English-language in the past 12 years that addressed the acute assessment, management, follow-up plan or prognosis were considered for inclusion. Data extraction of included articles was conducted, followed by quality appraisal to rate the level of evidence. The search revealed 1902 articles, of which 73 were included in the review (n = 12 primary articles, n = 49 systematic reviews and n = 12 guidelines). This rapid review provides clinicians who manage shoulder dislocations, fractures and soft tissue injuries in the ED a summary of the best available evidence to enhance the quality of care for optimal patient outcomes. There is strong evidence to support taking a thorough history and physical examination, with cautious use of special tests because of their poor diagnostic accuracy. Key points regarding the diagnosis and management of these injuries are provided. PMID- 29345428 TI - TRAF3 regulation of inhibitory signaling pathways in B and T lymphocytes by kinase and phosphatase localization. AB - This brief review presents current understanding of how the signaling adapter protein TRAF3 can both induce and block inhibitory signaling pathways in B and T lymphocytes, via association with kinases and phosphatases, and subsequent regulation of their localization within the cell. In B lymphocytes, signaling through the interleukin 6 receptor (IL-6R) induces association of TRAF3 with IL 6R-associated JAK1, to which TRAF3 recruits the phosphatase PTPN22 (protein tyrosine phosphatase number 22) to dephosphorylate JAK1 and STAT3, inhibiting IL 6R signaling. An important biological consequence of this inhibition is restraining the size of the plasma cell compartment, as their differentiation is IL-6 dependent. Similarly, in T lymphocytes, interleukin 2 receptor (IL-2R) signaling recruits TRAF3, which in turn recruits the phosphatase TCPTP (T cell protein tyrosine phosphatase) to dephosphorylate JAK3. The resulting inhibition of IL-2R signaling limits the IL-2-dependent size of the T regulatory cell (Treg) compartment. TRAF3 also inhibits type 1 IFN receptor (IFNalphaR) signaling to T cells by this mechanism, restraining expression of IFN-stimulated gene expression. In contrast, TRAF3 association with two inhibitors of TCR signaling, C-terminal Src kinase (Csk) and PTPN22, promotes their localization to the cytoplasm, away from the membrane TCR complex. TRAF3 thus enhances TCR signaling and downstream T cell activation. Implications are discussed for these regulatory roles of TRAF3 in lymphocytes, as well as potential future directions. PMID- 29345429 TI - Engineering 3D Hydrogels for Personalized In Vitro Human Tissue Models. AB - There is a growing interest in engineering hydrogels for 3D tissue and disease models. The major motivation is to better mimic the physiological microenvironment of the disease and human condition. 3D tissue models derived from patients' own cells can potentially revolutionize the way treatment and diagnostic alternatives are developed. This requires development of tissue mimetic hydrogels with user defined and tunable properties. In this review article, a recent summary of 3D hydrogel platforms for in vitro tissue and disease modeling is given. Hydrogel design considerations and available hydrogel systems are summarized, followed by the types of currently available hydrogel models, such as bulk hydrogels, porous scaffolds, fibrous scaffolds, hydrogel microspheres, hydrogel sandwich systems, microwells, and 3D bioprinted constructs. Although hydrogels are utilized for a wide range of tissue models, this article focuses on liver and cancer models. This article also provides a detailed section on current challenges and future perspectives of hydrogel-based tissue models. PMID- 29345430 TI - Wearable Wireless Tyrosinase Bandage and Microneedle Sensors: Toward Melanoma Screening. AB - Wearable bendable bandage-based sensor and a minimally invasive microneedle biosensor are described toward rapid screening of skin melanoma. These wearable electrochemical sensors are capable of detecting the presence of the tyrosinase (TYR) enzyme cancer biomarker in the presence of its catechol substrate, immobilized on the transducer surface. In the presence of the surface TYR biomarker, the immobilized catechol is rapidly converted to benzoquinone that is detected amperometrically, with a current signal proportional to the TYR level. The flexible epidermal bandage sensor relies on printing stress-enduring inks which display good resiliency against mechanical deformations, whereas the hollow microneedle device is filled with catechol-coated carbon paste for assessing tissue TYR levels. The bandage sensor can thus be used directly on the skin whereas microneedle device can reach melanoma tissues under the skin. Both wearable sensors are interfaced to an ultralight flexible electronic board, which transmits data wirelessly to a mobile device. The analytical performance of the resulting bandage and microneedle sensing systems are evaluated using TYR containing agarose phantom gel and porcine skin. The new integrated conformal portable sensing platforms hold considerable promise for decentralized melanoma screening, and can be extended to the screening of other key biomarkers in skin moles. PMID- 29345432 TI - Getting published. PMID- 29345431 TI - The effect of diuresis on extravascular lung water and pulmonary function in acute decompensated heart failure. AB - AIMS: The effect of extravascular lung water (EVLW) and relationship to functional status as a result of acute decompensated heart failure (ADHF) are not well understood. We sought to quantify changes in clinical variables, EVLW, airway anatomy, spirometry, and diffusing capacity for carbon monoxide before and after treatment for ADHF. METHODS AND RESULTS: Fifteen patients were recruited within 24 h of hospital admission. Spirometry, diffusing capacity for carbon monoxide, and surrogates of EVLW by computed tomography were measured and were then repeated within 24 h of discharge. From the computed tomography (CT) scan, surrogates of EVLW were calculated from the distribution of CT attenuation of the lung tissue. Airways were segmented using the VIDA Apollo software. Patients were hospitalized for 4.6 +/- 2.1 days, had 10 +/- 4.8 L of fluid removed (7.0 +/- 4.2 L between study visits), and lost 7.1 +/- 4.9 kg. Patients had significant clearance of fluid from the lungs (per cent change: mean, 4.2 +/- 6.1%; skew, 17.5 +/- 27.0%; kurtosis, 37.6 +/- 56.7%; full-width half-maximum, 10.2 +/- 13.5%). Static lung volumes and maximal flows improved significantly (per cent change: forced vital capacity, 14.5 +/- 13.6%; forced expiratory volume in 1 s, 15.9 +/- 14.0%; forced expiratory flow at 25-75% of forced vital capacity, 27.2 +/- 42.9%). The ratio of membrane conductance to capillary blood volume improved significantly (per cent change: alveolar-capillary membrane conductance/capillary blood volume, 23.4 +/- 22.8%). Weight loss during hospitalization was significantly correlated with improved spirometry and diffusing capacity. CONCLUSIONS: Extravascular lung water contributes to the pulmonary congestive syndrome in ADHF patients, and its clearance is an important component of the improvement in pulmonary function as a result of inpatient treatment. PMID- 29345433 TI - Phenotype and Function of Somatic Primary Afferent Nociceptive Neurones with C-, Adelta- or Aalpha/beta-Fibres. AB - Nociceptive dorsal root ganglion (DRG) neurones have fibres that conduct in the C, Adelta and Aalpha/beta conduction velocity range. The properties of nociceptive compared with non-nociceptive somatic afferent dorsal root ganglion neurones appear to fall into two patterns, A and B. Pattern A properties of nociceptive neurones, the more common type, include longer action potential duration and slower maximum rate of fibre firing, as well as a greater expression of substance P and calcitonin gene-related peptide immunoreactivity. The values of pattern A properties appear to be graded according to the conduction velocity group (C, Adelta or Aalpha/beta) of the fibres. The most pronounced forms of A type properties are expressed by nociceptive neurones with C-fibres, and these become less pronounced in nociceptive neurones with Adelta-fibres and least pronounced in those with Aalpha/beta fibres (C > Adelta > Aalpha/beta). Some of these properties are also expressed in a less extreme but similarly graded manner through C, Adelta and Aalpha/beta groups of non-nociceptive low threshold mechanoreceptive (LTM) neurone. The less common pattern B properties of nociceptive neurones have similar values in C-, Adelta- and Aalpha/beta-fibre nociceptive neurones but these clearly differ from LTM units with C-, Adelta- and Aalpha/beta-fibre conduction velocities. These features of nociceptive neurones include consistently larger action potential overshoots and longer after hyperpolarisation durations in nociceptive than in LTM neurones. PMID- 29345434 TI - Two-Photon-Excited Silica and Organosilica Nanoparticles for Spatiotemporal Cancer Treatment. AB - Coherent two-photon-excited (TPE) therapy in the near-infrared (NIR) provides safer cancer treatments than current therapies lacking spatial and temporal selectivities because it is characterized by a 3D spatial resolution of 1 um3 and very low scattering. In this review, the principle of TPE and its significance in combination with organosilica nanoparticles (NPs) are introduced and then studies involving the design of pioneering TPE-NIR organosilica nanomaterials are discussed for bioimaging, drug delivery, and photodynamic therapy. Organosilica nanoparticles and their rich and well-established chemistry, tunable composition, porosity, size, and morphology provide ideal platforms for minimal side-effect therapies via TPE-NIR. Mesoporous silica and organosilica nanoparticles endowed with high surface areas can be functionalized to carry hydrophobic and biologically unstable two-photon absorbers for drug delivery and diagnosis. Currently, most light-actuated clinical therapeutic applications with NPs involve photodynamic therapy by singlet oxygen generation, but low photosensitizing efficiencies, tumor resistance, and lack of spatial resolution limit their applicability. On the contrary, higher photosensitizing yields, versatile therapies, and a unique spatial resolution are available with engineered two photon-sensitive organosilica particles that selectively impact tumors while healthy tissues remain untouched. Patients suffering pathologies such as retinoblastoma, breast, and skin cancers will greatly benefit from TPE-NIR ultrasensitive diagnosis and therapy. PMID- 29345435 TI - N-Modified NiO Surface for Superior Alkaline Hydrogen Evolution. AB - Boosting the sluggish kinetics of the hydrogen evolution reaction in alkaline environments is key for the large-scale application of water-alkali and chlor alkali electrolysis. In this study, nitrogen atoms are used to precisely modulate electrochemical active sites on the surface of nickel oxide with low-coordinated oxygen atoms, to achieve enhanced kinetics in alkaline hydrogen evolution. Theoretical and experimental results demonstrate that surface charge redistribution after modulation facilitates both the initial water dissociation step and the subsequent recombination of Had from low-coordinated oxygen sites and desorption of OHad- from nickel sites, thus accelerating the overall hydrogen evolution process. The N-modulated nickel oxide enriched in low-coordinated oxygen atoms exhibits significantly enhanced activity with a small overpotential of -100 mV at the current density of -10 mA cm-2 and a robust stability over 90 h for hydrogen evolution in 1.0 m KOH. PMID- 29345436 TI - Effect of ginseng therapy on diabetes and its chronic complications: lessons learned. AB - Ginseng played a significant role in the management of diabetes in China and in other Asian countries for a long period of time. It has a large number of pharmacological properties and is relatively free from adverse effects. As a part of Ontario Ginseng Research and Innovation Consortium, we investigated the effects of ginseng extract on diabetes and its complications. We demonstrated large number of beneficial effects of ginseng therapy and showed that these effects are possibly mediated through its antioxidant properties. Thus ginseng may lend itself as a relatively safe and inexpensive adjuvant treatment for diabetes and chronic diabetic complications. PMID- 29345437 TI - Antioxidant and acetylcholinesterase inhibitory activities of ginger root (Zingiber officinale Roscoe) extract. AB - Background Zingiber officinale Roscoe has been used in traditional medicine for the treatment of neurological disorder. This study aimed to investigate the phenolic contents, antioxidant, acetylcholinesterase enzyme (AChE) inhibitory activities of different fraction of Z. officinale root grown in Vietnam. Methods The roots of Z. officinale are extracted with ethanol 96 % and fractionated with n-hexane, ethyl acetate (EtOAc) and butanol (BuOH) solvents. These fractions evaluated the antioxidant activity by 1,1-Diphenyl -2-picrylhydrazyl (DPPH) assay and AChE inhibitory activity by Ellman's colorimetric method. Results Our data showed that the total phenolic content of EtOAc fraction was highest equivalents to 35.2+/-1.4 mg quercetin/g of fraction. Our data also demonstrated that EtOAc fraction had the strongest antioxidant activity with IC50 was 8.89+/-1.37 ug/mL and AChE inhibitory activity with an IC50 value of 22.85+/-2.37 MUg/mL in a dose dependent manner, followed by BuOH fraction and the n-hexane fraction is the weakest. Detailed kinetic analysis indicated that EtOAc fraction was mixed inhibition type with Ki (representing the affinity of the enzyme and inhibitor) was 30.61+/-1.43 ug/mL. Conclusions Our results suggest that the EtOAc fraction of Z. officinale may be a promising source of AChE inhibitors for Alzheimer's disease. PMID- 29345438 TI - Evaluation of hepatic glycogen content, some haematological and biochemical parameters of alloxan-induced diabetic rats treated with combinations of glibenclamide and G. latifolium extract. AB - Background Diabetes is associated with both biochemical and haematological complications. Combination therapy has been advocated to mitigate some of these complications. Aim This study was designed to investigate the effects of glibenclamide and Gongronema latifolium (GL) on hepatic glycogen content and haemato-biochemical parameters. Methods Thirty male Wistar rats were assigned into five groups of six rats each. Groups 2-5 rats received intraperitoneally, 160 mg/kg of alloxan monohydrate while group 1 rats served as normal control. Groups 2-5 rats were respectively treated with 10 mL/kg distilled water (DW), 2 mg/kg glibenclamide, 200 mg/kg GL and 2 mg/kg glibenclamide and 200 mg/kg GL, while group 1 rats received 10 mL/kg DW. All treatments were per os daily for 21 days. Blood samples for investigation of haemato-biochemical (red blood cell [RBC], packed cell volume [PCV], haemoglobin concentration [Hb], blood urea nitrogen [BUN] and creatinine) parameters were collected on days 7, 14 and 21 post-treatment (PT), while the liver sample for hepatic glycogen determination was obtained on day 21 PT. Results Creatinine and BUN values of groups 3 and 4 rats were comparable to that of group 1 but were significantly (p<0.05) lower when compared with those of groups 2 and 5. There were significant (p<0.05) increases in the mean hepatic glycogen content, RBC, PCV, and Hb of group 4 rats when compared to those of group 2. Conclusions It was concluded that a combination of glibenclamide and G. latifolium in treatment of diabetic rats improved glycogen storage and demonstrated beneficial effects on haematology and kidney marker parameters. PMID- 29345439 TI - Bivalirudin versus Heparin Monotherapy in Myocardial Infarction. PMID- 29345440 TI - Bivalirudin versus Heparin Monotherapy in Myocardial Infarction. PMID- 29345441 TI - Bivalirudin versus Heparin Monotherapy in Myocardial Infarction. PMID- 29345442 TI - Lung uptake of fluorine-18 fluoroethyl-choline PET-CT in patients with prostate cancer. AB - BACKGROUND: Metastatic spreading to the lungs is a negative prognostic factor in patients with prostate cancer (PC). Aim of our study was to assess the prevalence of lung PC metastases in patients with fluorine-18 fluoroethyl-choline (F-18 FECh) PET-CT positive lung lesions and the role of Gleason Score (GS) and common biochemical markers in predicting metastatic spreading to the lungs. METHODS: We retrospectively evaluated the scans of 1283 patients ongoing (F-18-FECh) PET-CT for PC between May 2010 and July 2014. Patients with lung lesion with F-18-FECh uptake were included. Data concerning GS at diagnosis, "trigger" prostate specific antigen (PSAtr), PSA doubling time (PSAdt), PSA velocity (PSAvel) and ongoing androgen deprivation therapy were collected. PET-CT findings were confirmed by histology or followup (FU) and classified as follows: inflammation, primary lung cancer or metastases from tumour other than PC, and lung metastases from PC. RESULTS: Twenty-two patients with F-18-FECh positive lung lesion and available histology or FU were identified. PSAdt was significantly (p=0.029) shorter in patients with lung metastases from PC (median PSAdt 1.7 months, interquartile range [IQR] 1.5-4.1 months) than in patients without lung PC relapse (median PSAdt 6.7 months, IQR 3.9-7.8); PSAvel was significantly (p=0.019) higher in patients with lung metastases from PC (median PSAvel 3.2 ng/ml/month, IQR 0.65-6.65 ng/ml/month) than in patients without lung PCrelapse (median PSAvel 0.3 ng/ml/month, IQR 0.2-0.5 ng/ml/month). Patients with lung metastases from PC had significantly (p=0.006) higher GS at diagnosis (median GS 8) than the other ones (median GS 7). CONCLUSIONS: Our analysis shows that the prevalence of F-18-FECh positive lung metastases in patients with PC, especially with higher GS at diagnosis, is higher in presence of a steady increase in PSA values, confirmed by higher PSAvel and shorter PSAdt. PMID- 29345443 TI - SUV calculation in breast cancer: which normalization should be applied when using 18F-FDG PET? AB - BACKGROUND: When using 18F-FDG PET, glucose metabolism quantification is affected by various factors. We aimed to investigate the benefit of different SUV normalizations to improve the accuracy of 18F-FDG uptake to predict breast cancer aggressiveness and response to treatment. METHODS: Two hundred fifty-two women with locally advanced breast cancer treated with neoadjuvant chemotherapy (NAC) were included. Women underwent 18F-FDG PET before and after the first course of NAC. Glucose serum levels, patient heights and weights were recorded at the time of each PET exam. Four different procedures for SUV normalization of the primary tumor were used: by body weight (SUVBW by blood glucose level ( SUVG, by lean body mass (SUL) and then corrected for both lean body mass and blood glucose level ( SULG). RESULTS: At baseline, SUL was significantly lower than SUVBW (5.9+/-4.0 and 9.5+/-6.5, respectively; p<1.10-4), whereas SUVG and SUVBW were not significantly different (9.7+/-6.4 and 9.5+/-6.5, respectively; P=0.67). Concerning SUV changes (DeltaSUV), the different normalizations methods did not induce significant quantitative differences. The correlation coefficients were high between the four normalizations methods of SUV1, SUV2 and DeltaSUVB (R>0.95; p<1.10-4). High baseline SUVBW measures were positively correlated with the biological tumor characteristics of aggressiveness and proliferation (p<1.10-3): ductal carcinoma, high tumor grading, high mitotic activity, negative estrogen receptor status and the TNBC subtype. DeltaSUVBW was highly predictive of pCR (AUC=0.76 on ROC curve analysis; p<1.10-4). The different SUV normalizations yields identical statistical results and AUC to predict tumor biological aggressiveness and response to therapy. CONCLUSIONS: In the present setting, SUVBW and SUL can be considered as robust measures and be used in future multicentre trials. The additional normalization of SUV by glycemia involves stringent methodologic procedures to avoid biased risk measurements and offers no statistical advantages. PMID- 29345444 TI - Bivalirudin versus Heparin Monotherapy in Myocardial Infarction. PMID- 29345445 TI - The impact of high progesterone levels on the day of HCG administration in assisted human reproduction treatments. AB - OBJECTIVE: Progesterone is a steroid hormone that acts on the endometrium. It is known for producing physical and mood-related side effects. Few studies have looked into how progesterone levels affect embryo development and quality. This study aimed to find a cutoff level for serum progesterone on the day of HCG administration from which embryo quality is impaired. METHODS: The study included 145 cycles, from which 885 oocytes and 613 embryos were obtained. All patients had their serum progesterone levels measured on the day of HCG administration. Data sets were collected from patient medical records. The chi-square test was used to assess qualitative variables and the Mann-Whitney test to evaluate quantitative variables. RESULTS: Statistical analysis revealed that serum progesterone levels and reproductive variables were not significantly associated. In regards to oocyte maturity, however, when progesterone levels were greater than 1.3 ng/mL the probability of oocytes being immature increased by 12.7%. The fragmentation rate of embryos categorized as "top quality" in D3 increased proportionately to increases in progesterone levels (12.23%). CONCLUSION: High progesterone levels appeared to be correlated with increased embryo fragmentation rates, but high serum levels of the hormone on the day of HCG administration had no impact on reproductive variables and were not associated with impaired embryo development. PMID- 29345446 TI - The first South American case of pre-implantation genetic diagnosis to select compatible embryo for cord blood transplantation as treatment for sickle cell anemia. AB - Sickle cell anemia is an inherited systemic hemoglobinopathy that affects hemoglobin production in red blood cells, leading to early morbidity and mortality. It is caused by a homozygous nucleotide substitution (c.20A>T) in the beta-globin gene (HBB) that changes a glutamic acid to a valine in the protein. We present a case report of a fertile couple, both carriers of the sickle cell anemia mutation, with one affected daughter. Six cycles of assisted reproductive techniques were performed, resulting in 53 embryos in cleavage stage. Each embryo was biopsied and analyzed for pre-implantation genetic diagnosis (PGD) by fluorescent polymerase chain reaction, using polymorphic markers of the region of interest followed by capillary electrophoresis in an automated genetic analyzer. HLA Compatible and normal embryos for the mutation represented 3 (5.66%); while the carriers and compatible 6 (11.32%); therefore, embryos matching those of the affected daughter represented 9 (16.98%). A selected embryo in blastocyst stage was transferred, resulting in a healthy male newborn, who had the umbilical cord blood cells collected and stored. The affected daughter was immunosuppressed and received transplanted cells from the umbilical cord blood of her brother; the treatment was successful. Embryo selection using PGD technologies represent the most effective treatment plan for parents who want to have a healthy child, and it could cure another child already affected by inherited hemoglobinopathy. PMID- 29345447 TI - Evaluation and Management of Lower-Extremity Ulcers. PMID- 29345448 TI - Evaluation and Management of Lower-Extremity Ulcers. PMID- 29345449 TI - Evaluation and Management of Lower-Extremity Ulcers. PMID- 29345450 TI - Noninferiority Trials. PMID- 29345451 TI - Gadolinium-Loaded Solid Lipid Nanoparticles as a Tumor-Absorbable Contrast Agent for Early Diagnosis of Colorectal Tumors Using Magnetic Resonance Colonography. AB - Magnetic resonance (MR) contrast agents focusing on special functions are required to improve cancer diagnosis, particularly in the early stages. Here, we designed multifunctional solid lipid nanoparticles (SLNs) with simultaneous loading of gadolinium (Gd) diethylenetriaminepentaacetic acid (Gd-DTPA) and octadecylamine fluorescein isothiocyanate (FITC) to obtain Gd-FITC-SLNs as a tumor-absorbable nanoparticle contrast agent for the histological confirmation of MR imaging (MRI) findings. Colorectal tumors were evaluated in vitro and in vivo via direct uptake of this contrast agent, which displayed reasonable T1 relaxivity and no significant cytotoxicity at the experimental concentrations in human colon carcinoma cells (HT29) and mouse colon carcinoma cells (CT26). In vitro cell uptake experiments demonstrated that contrast agent absorption by the two types of cancer cells was concentration-dependent in the safe concentration range. During in vivo MRI, transrectal infusion of Gd-FITC-SLNs showed more significant enhancement at the tumor site compared with the infusion of Gd-DTPA in female C57/BL mice with azoxymethane/dextran sulfate sodium-induced colorectal highgrade intraepithelial neoplasia. Subsequent confocal fluorescence microscopy demonstrated Gd-FITC-SLNs as highly concentrated green fluorescent spots distributed from the tumor capsule into the tumor. This study establishes the "proof-of-principle" of a new MRI technique wherein colorectal tumors are enhanced via direct absorption or uptake of the nanoparticle contrast agent. PMID- 29345452 TI - Noninferiority Trials. PMID- 29345453 TI - Poly(glycidol) Coating on Ultrahigh Molecular Weight Polyethylene for Reduced Biofilm Growth. AB - Semibranched poly(glycidol) (PG-OH) and poly(glycidol allylglycidyl ether) (PG Allyl) coatings were formed on ultrahigh molecular weight polyethylene (UMWPE) in a unique two-step process which included radiation of UHMWPE followed by grafting of PG-OH or PG-Allyl to the surface via free radical cross-linking. Resulting surfaces were extensively characterized by FTIR-ATR, XPS, fluorescent microscopy, and contact goniometry. The performance was evaluated using the most prominent biofilm-forming bacteria Staphylococcus aureus for 24 and 48 h. The PG-Allyl coating demonstrated a 3 log reduction in biofilm growth compared to noncoated control, demonstrating a promising potential to inhibit adherence and colonization of biofilm-forming bacteria that often develop into persistent infections. PMID- 29345454 TI - Stability and Performance of CsPbI2Br Thin Films and Solar Cell Devices. AB - In this manuscript, the inorganic perovskite CsPbI2Br is investigated as a photovoltaic material that offers higher stability than the organic-inorganic hybrid perovskite materials. It is demonstrated that CsPbI2Br does not irreversibly degrade to its component salts as in the case of methylammonium lead iodide but instead is induced (by water vapor) to transform from its metastable brown cubic (1.92 eV band gap) phase to a yellow phase having a higher band gap (2.85 eV). This is easily reversed by heating to 350 degrees C in a dry environment. Similarly, exposure of unencapsulated photovoltaic devices to water vapor causes current (JSC) loss as the absorber transforms to its more transparent (yellow) form, but this is also reversible by moderate heating, with over 100% recovery of the original device performance. NMR and thermal analysis show that the high band gap yellow phase does not contain detectable levels of water, implying that water induces the transformation but is not incorporated as a major component. Performances of devices with best efficiencies of 9.08% (VOC = 1.05 V, JSC = 12.7 mA cm-2 and FF = 68.4%) using a device structure comprising glass/ITO/c-TiO2/CsPbI2Br/Spiro-OMeTAD/Au are presented, and further results demonstrating the dependence of the performance on the preparation temperature of the solution processed CsPbI2Br films are shown. We conclude that encapsulation of CsPbI2Br to exclude water vapor should be sufficient to stabilize the cubic brown phase, making the material of interest for use in practical PV devices. PMID- 29345455 TI - Three-Dimensional Printing of Bisphenol A-Free Polycarbonates. AB - Polycarbonates are widely used in food packages, drink bottles, and various healthcare products such as dental sealants and tooth coatings. However, bisphenol A (BPA) and phosgene used in the production of commercial polycarbonates pose major concerns to public health safety. Here, we report a green pathway to prepare BPA-free polycarbonates (BFPs) by thermal ring-opening polymerization and photopolymerization. Polycarbonates prepared from two cyclic carbonates in different mole ratios demonstrated tunable mechanical stiffness, excellent thermal stability, and high optical transparency. Three-dimensional (3D) printing of the new BFPs was demonstrated using a two-photon laser direct writing system and a rapid 3D optical projection printer to produce structures possessing complex high-resolution geometries. Seeded C3H10T1/2 cells also showed over 95% viability with potential applications in biological studies. By combining biocompatible BFPs with 3D printing, novel safe and high-performance biomedical devices and healthcare products could be developed with broad long term benefits to society. PMID- 29345456 TI - Preoccupation of Empty Carriers Decreases Endo-/Lysosome Escape and Reduces the Protein Delivery Efficiency of Mesoporous Silica Nanoparticles. AB - Endo-/lysosome escape is a major challenge in nanoparticle-based protein delivery for cancer therapy. To enhance the endo-/lysosomal escape and increase the efficacy of protein delivery, current strategies mainly focus on destroying endo /lysosomes by employing modified nanoparticles, such as pH-sensitive polyplexes, cell-penetrating peptides, and photosensitive molecules. Herein, we hypothesize that pretreatment with empty nanocarriers might make endo-/lysosomes occupied and affect the endo/lysosomal escape of protein subsequently delivery by nanocarriers. We first treated breast carcinoma MDA-MB-231 cells with a high concentration of empty nanocarriers, mesoporous silica nanoparticles (MSN), to occupy the endo-/lysosome. After 2 h, we treated the cells with a lower concentration of fluorescein isothiocyanate-labeled MSN (MSN-FITC) and investigated the intracellular spatial and temporal distribution of MSN-FITC and their colocalization with endo-/lysosomes. We discovered the preoccupation of endo-/lysosomes by the empty nanocarriers did exist, mainly through changing the spatial distribution of the subsequently introduced nanocarriers. Furthermore, for the protein delivery, we observed reduced MSN-saporin delivery after endo /lysosome preoccupation by MSN empty carriers. A similar result is observed for the delivery of cytochrome C by MSN but not for the small-molecule anticancer drug doxorubicin. The results show that the empty nanocarriers inhibit the endo /lysosome intracellular trafficking process and decrease the endo-/lysosome escape of proteins subsequently delivered by the nanocarriers. This new discovered phenomenon of declined endo-/lysosome escape after endo-/lysosome preoccupation indicates that repeated treatment by nanomaterials with low protein loading capacity may not yield a good cancer therapeutic effect. Therefore, it provides a new insightful perspective on the role of nanomaterial carriers in intracellular protein delivery. PMID- 29345457 TI - Lithium Expulsion from the Solid-State Electrolyte Li6.4La3Zr1.4Ta0.6O12 by Controlled Electron Injection in a SEM. AB - The garnet ionic conductor is one of the promising candidate electrolytes for all solid-state secondary lithium batteries, thanks to its high lithium ion conductivity and good thermal and chemical stability. However, its microstructure is difficult to approach because it is very sensitive to the inquisitive electron beam. In this study based on a scanning electron microscope (SEM), we found that the electron beam expulses the lithium out of Li6.4La3Zr1.4Ta0.6O12 (LLZTO), and the expulsed zone expands to where a stationary beam could extend and penetrate. The expulsion of metallic lithium was confirmed by its oxidation reaction after nitrogen inflow into the SEM. This phenomenon may provide us an effective probe to peer into the conductive nature of this electrolyte. A frame-scan scheme is employed to measure the expulsion rate by controllable and more uniform incidence of electrons. Lithium accumulation processes are continuously recorded and classified into four modes by fitting its growth behaviors into a dynamic equation that is mainly related to the initial ion concentration and ion migration rate in the electrolyte. These results open a novel possibility of using the SEM probe to gain dynamic information on ion migration and lithium metal growth in solid materials. PMID- 29345458 TI - Synthesis of Magnetite-Semiconductor-Metal Trimer Nanoparticles through Functional Modular Assembly: A Magnetically Separable Photocatalyst with Photothermic Enhancement for Water Reduction. AB - Hybrid nanoparticles have intrinsic advantages to achieve better activity in photocatalysis compared to single-component materials, as it can synergistically combine functional components, which promote light absorption, charge transportation, surface reaction, and catalyst regeneration. Through functional modular assembly, a rational and stepwise approach has been developed to construct Fe3O4-CdS-Au trimer nanoparticles and its derivatives as magnetically separable catalysts for photothermo-catalytic hydrogen evolution from water. In a typical step-by-step synthetic process, Fe3O4-Ag dimers, Fe3O4-Ag2S dimers, Fe3O4 CdS dimers, and Fe3O4-CdS-Au trimers were synthesized by seeding growth, sulfuration, ion exchange, and in situ reduction consequently. Following the same reaction route, a series of derivative trimer nanoparticles with alternative semiconductor and metal were obtained for water-reduction reaction. The experimental results show that the semiconductor acts as an active component for photocatalysis, the metal nanoparticle acts as a cocatalyst for enhancement of charge separation, and the Fe3O4 component helps in the convenient separation of catalysts in magnetic field and improves photocatalytic activity under near infrared illumination due to photothermic effect. PMID- 29345459 TI - Bifunctional Hybrid Catalysts with Perovskite LaCo0.8Fe0.2O3 Nanowires and Reduced Graphene Oxide Sheets for an Efficient Li-O2 Battery Cathode. AB - In this paper, bifunctional catalysts consisting of perovskite LaCo0.8Fe0.2O3 nanowires (LCFO NWs) with reduced graphene oxide (rGO) sheets were prepared for use in lithium-oxygen (Li-O2) battery cathodes. The prepared LCFO@rGO composite was explored as a cathode catalyst for Li-O2 batteries, resulting in an outstanding discharge capacity (ca. 7088.2 mAh g-1) at the first cycle. Moreover, a high stability of the O2-cathode with the LCFO@rGO catalyst was achieved over 56 cycles under the capacity limit of 500 mAh g-1 with a rate of 200 mA g-1, as compared to the Ketjenblack carbon and LCFO NWs. The enhanced electrochemical performance suggests that these hybrid composites of perovskite LCFO NWs with rGO nanosheets could be a perspective bifunctional catalyst for the cathode oxygen reduction and oxygen evolution reactions in the development of next-generation Li O2 battery cathodes. PMID- 29345460 TI - Low-Cost Room-Temperature Synthesis of NaV3O8.1.69H2O Nanobelts for Mg Batteries. AB - Potentially safe and economically feasible magnesium batteries (MBs) have attracted tremendous research attention as an alternative to high-cost and unsafe lithium ion batteries. In the current work, for the first time, we report a novel room-temperature approach to dope the atomic species sodium between the vanadium oxide crystal lattice to obtain NaV3O8.1.69H2O (NVO) nanobelts. The synthesized NVO nanobelts are used as electrode materials for MBs. The MB cells demonstrate stable discharge specific capacity of 110 mA h g-1 at a current density of 10 mA g-1 and a high cyclic stability, that is 80% capacity retention after 100 cycles, at a current density of 50 mA g-1. Moreover, the effects of cutoff voltages (ranging from 2 to 2.6 V) on their electrochemical performance were investigated. The reason for the limited specific capacity of MBs is attributed to the trapping of Mg ions inside the NVO lattices. This work opens up a new pathway to explore different electrode materials for MBs with improved electrochemical performance. PMID- 29345461 TI - Combined Iron/Hydroxytriazole Dual Catalytic System for Site Selective Oxidation Adjacent to Azaheterocycles. AB - This report details a new method for site-selective methylene oxidation adjacent to azaheterocycles. A dual catalysis approach, utilizing both an iron Lewis acid and an organic hydroxylamine catalyst, proved highly effective. We demonstrate that this method provides complementary selectivity to other known catalytic approaches and represents an improvement over current heterocycle-selective reactions that rely on stoichiometric activation. PMID- 29345462 TI - Fluorescent Zn-PDC/Tb3+ Coordination Polymer Nanostructure: A Candidate for Highly Selective Detections of Cefixime Antibiotic and Acetone in Aqueous System. AB - Tb3+-doped zinc-based coordination polymer nanospindle bundles (Zn-PDC/Tb3+, or [Zn(2,5-PDC)(H2O)2].H2O/Tb3+) were synthesized by a simple solution precipitation route at room temperature, employing Zn(NO3)2, Tb(NO3)3, and 2,5-Na2PDC as the initial reactants, and a mixture of water and ethanol with the volume ratio of 10:10 as the solvent. The as-obtained nanostructures presented strong fluorescent emission under the excitation of 298 nm light, which was attributed to the characteristic emission of the Tb3+ ion. It was found that the above-mentioned strong fluorescence of the nanostructures could be selectively quenched by cefixime (CFX) in aqueous solution. The other common antibiotics hardly interfered. Thus, as-obtained Zn-PDC/Tb3+ nanostructures could be prepared as a highly sensitive fluorescence probe for selective detection of CFX in an aqueous system. The corresponding detection limit reached 72 ppb. The theoretic calculation and UV-vis absorption experiments confirmed that the fluorescence quenching of Zn-PDC/Tb3+ nanostructures toward CFX should be attributed to the electron transfer and the fluorescence inner filter effect between the fluorescent matter and the analyte. In addition, the strong fluorescence of the nanostructures could also be selectively quenched by acetone in the water system. PMID- 29345463 TI - (+/-)-Sativamides A and B, Two Pairs of Racemic Nor-Lignanamide Enantiomers from the Fruits of Cannabis sativa. AB - (+/-)-Sativamides A (1) and B (2), two pairs of nor-lignanamide enantiomers featuring a unique benzo-angular triquinane skeleton, were isolated from the fruits of Cannabis sativa (hemp seed). Their structures were elucidated by detailed spectroscopic analysis and ECD calculations. The resolution of (+)- and (-)-sativamides A and B were achieved by chiral HPLC. Pretreatment of neuroblastoma cells with 1 and 2 significantly reduced the endoplasmic reticulum (ER) stress-induced cytotoxicity. PMID- 29345464 TI - Whole Egg Consumption Exerts a Nephroprotective Effect in an Acute Rodent Model of Type 1 Diabetes. AB - Nephropathy is a well-characterized complication of type 1 diabetes (T1D), resulting in proteinuria and urinary loss of micronutrients. We previously found that a whole egg-based diet maintained vitamin D balance in type 2 diabetic rats despite excessive urinary losses due to nephropathy. The goal of this study was to investigate the impact of whole egg consumption in T1D rats. Sprague-Dawley rats were randomly assigned to T1D or nondiabetic control groups and fed a casein or whole egg-based diet for 32 days. On day 26, two-thirds of the rats received a streptozotocin injection to induce T1D. Whole egg consumption attenuated polyuria, proteinuria, and renal hypertrophy in T1D rats. These data suggest that dietary intervention with whole egg may offer renal protection in T1D. PMID- 29345465 TI - Microplastic Abundance and Composition in Western Lake Superior As Determined via Microscopy, Pyr-GC/MS, and FTIR. AB - While plastic pollution in marine and freshwater systems is an active area of research, there is not yet an in-depth understanding of the distributions, chemical compositions, and fates of plastics in aquatic environments. In this study, the magnitude, distribution, and common polymers of microplastic pollution in surface waters in western Lake Superior are determined. Analytical methodology, including estimates of ambient contamination during sample collection and processing, are described and employed. Microscopy, pyrolysis-gas chromatography/mass spectrometry (Pyr-GC/MS), and Fourier transform infrared spectroscopy (FTIR) were used to quantify and identify microplastic particles. In surface waters, fibers were the most frequently observed morphology, and, based upon PyGC/MS analysis, polyvinyl chloride was the most frequently observed polymer, followed by polypropylene and polyethylene. The most common polymer identified by FTIR was polyethylene. Despite the low human population in Lake Superior's watershed, microplastic particles (particularly fibers, fragments, and films) were identified in western-lake surface waters at levels comparable to average values reported in studies within Lake Michigan, the North Atlantic Ocean, and the South Pacific Ocean. This study provides insight into the magnitude of microplastic pollution in western Lake Superior, and describes in detail methodology to improve future microplastics studies in aquatic systems. PMID- 29345466 TI - Flow Photochemistry as a Tool for the Total Synthesis of (+)-Epigalcatin. AB - The first total synthesis of (+)-epigalcatin was completed in a highly stereoselective manner starting from piperonal, 3,4-dimethylbenzaldehyde, and diethyl succinate. l-Prolinol was used as a chiral auxiliary. The crucial step in this procedure involves the construction of the cyclolignan framework by continuous-flow photocyclization of a chiral atropisomeric 1,2 bisbenzylidenesuccinate amide ester. PMID- 29345468 TI - Photochemistry of Solid Films of the Neonicotinoid Nitenpyram. AB - The environmental fates of nitenpyram (NPM), a widely used neonicotinoid insecticide, are not well-known. A thin solid film of NPM deposited on a germanium attenuated total reflectance (ATR) crystal was exposed to radiation from a low-pressure mercury lamp at 254 nm, or from broadband low pressure mercury photolysis lamps centered at 350 or 313 nm. The loss during photolysis was followed in time using FTIR. The photolysis quantum yields (phi), defined as the number of NPM molecules lost per photon absorbed, were determined to be (9.4 +/- 1.5) * 10-4 at 350 nm, (1.0 +/- 0.3) * 10-3 at 313 nm, and (1.2 +/- 0.4) * 10 2 at 254 nm (+/-2sigma). Imines, one with a carbonyl group, were detected as surface-bound products and gaseous N2O was generated in low (11%) yield. The UV vis absorption spectra of NPM in water was different from that in acetonitrile, dichloromethane, and methanol, or in a thin solid film. The photolytic lifetime of solid NPM at a solar zenith angle at 35 degrees is calculated to be 36 min, while that for NPM in water is 269 min, assuming that the quantum yield is the same as in the solid. Thus, there may be a significant sensitivity to the medium for photolytic degradation and the lifetime of NPM in the environment. PMID- 29345467 TI - Cyclic Acyl Disulfides and Acyl Selenylsulfides as the Precursors for Persulfides (RSSH), Selenylsulfides (RSeSH), and Hydrogen Sulfide (H2S). AB - The reactions of three model compounds (1-3) for cyclic acyl disulfides and cyclic acyl selenylsulfides are studied. These compounds were found to be effective precursors for persulfides (RSSH) and selenylsulfides (RSeSH) upon reacting with nucleophilic species. They could also act as H2S donors when interacting with cellular thiols. The most interesting discovery was the generation of RSeSH from compound 3 under mild conditions. Selenylsulfides (RSeSH) are expected to be important regulating molecules involved in Sec-related redox signaling. The method of producing RSeSH should allow researchers to better understand the chemical biology of RSeSH. PMID- 29345469 TI - A Large Family of Centrosymmetric and Chiral f-Element-Bearing Iodate Selenates Exhibiting Coordination Number and Dimensional Reductions. AB - The exploration of phase formation in the f-element-bearing iodate selenate system has resulted in 14 novel rare-earth-containing iodate selenates, Ln(IO3)(SeO4) (Ln = La, Ce, Pr, Nd; LnISeO-1), Ln(IO3)(SeO4)(H2O) (Ln = Sm, Eu; LnISeO-2), and Ln(IO3)(SeO4)(H2O)2.H2O (Ln = Gd, Dy, Ho, Er, Tm, Yb, Lu, Y; LnISeO-3), as well as two new thorium iodate selenates, Th(OH)(IO3)(SeO4)(H2O) (ThISeO-1) and Th(IO3)2(SeO4) (ThISeO-2). LnISeO-3 and ThISeO-2 crystallize in the chiral space group P212121, while LnISeO-1, LnISeO-2, and ThISeO-1 crystallize in the centrosymmetric space group P21/c. The numbers of both coordinating and hydrating water molecules crystallized in LnISeO-1, LnISeO-2, and LnISeO-3 increase along these three series, in line with the increasingly negative values of hydration enthalpies of heavier trivalent lanthanide ions. Such a systematic change in compositions, especially the first coordination sphere of Ln, further induces structural rearrangements, including coordination number and dimensional reductions. More specifically, the structures of LnISeO-1, LnISeO-2, and LnISeO-3 have undergone transitions from 2D Ln-oxo layers with 10 coordinate Ln centers to 1D Ln-oxo chains with 9-coordinate Ln centers and then to 0D Ln-oxo monomers with 8-coordinate Ln centers, respectively. The formation and characterization of this large family of Ln/Th iodate selenates suggest that such a mixed-anion system not only exhibits richer structural chemistry but also can be capable of generating intriguing properties, such as the second-harmonic generation (SHG) effect. PMID- 29345470 TI - A Bioinspired Cascade Sequence Enables Facile Assembly of Methanodibenzo[b,f][1,5]dioxocin Flavonoid Scaffold. AB - A remarkable bioinspired EDDA-mediated method for the selective construction of biologically interesting and highly strained bridged methanodibenzo[b,f][1,5]dioxocin flavonoid scaffold was uncovered by starting from a variety of readily available acylphloroglucinol and 2 hydroxycinnamaldehyde substrates. This method merges a fascinating olefin isomerization/hemiacetallization/dehydration/[3 + 3]-type cycloaddition cascade reaction driven by an in situ generated chromenylium intermediate and provides a convenient and viable synthetic strategy for the efficient access of such flavonoid analogues. PMID- 29345471 TI - Synthesis and Properties of Dithiafulvenyl Functionalized Spiro[fluorene-9,9' xanthene] Molecules. AB - Two spiroannulated molecular structures with dithiafulvenyl units functionalized at the 2,2',7,7'- (SFX-DTF1) and 2,3',6,'7- (SFX-DTF2) positions of a spiro[fluorene-9,9'-xanthene] core were synthesized. Studies revealed the hole mobility was significantly influenced by the dithiafulvenyl functionalized positions in the molecular structure. To explore their primary applications as hole-transporting materials in perovskite solar cells, SFX-DTF1-based devices exhibited a power conversion efficiency of 10.67% without the use of p-type dopants, yielding good air stability. PMID- 29345472 TI - Current-Driven Motion of Domain Boundaries between Skyrmion Lattice and Helical Magnetic Structure. AB - To utilize magnetic skyrmions, nanoscale vortex-like magnetic structures, experimental elucidation of their dynamics against current application in various circumstances such as in confined structure and mixture of different magnetic phases is indispensable. Here, we investigate the current-induced dynamics of the coexistence state of magnetic skyrmions and helical magnetic structure in a thin plate of B20-type helimagnet FeGe in terms of in situ real-space observation using Lorentz transmission electron microscopy. Current pulses with various heights and widths were applied, and the change of the magnetic domain distribution was analyzed using a machine-learning technique. The observed average driving direction of the two-magnetic-state domain boundary is opposite to the applied electric current, indicating ferromagnetic s-d exchange coupling in the spin-transfer torque mechanism. The evaluated driving distance tends to increase with increasing the pulse duration time, current density (>1 * 109 A/m2), and sample temperature, providing valuable information about hitherto unknown current-induced dynamics of the skyrmion-lattice ensemble. PMID- 29345473 TI - Highly Sensitive and Ultrastable Skin Sensors for Biopressure and Bioforce Measurements Based on Hierarchical Microstructures. AB - Piezoresistive microsensors are considered to be essential components of the future wearable electronic devices. However, the expensive cost, complex fabrication technology, poor stability, and low yield have limited their developments for practical applications. Here, we present a cost-effective, relatively simple, and high-yield fabrication approach to construct highly sensitive and ultrastable piezoresistive sensors using a bioinspired hierarchically structured graphite/polydimethylsiloxane composite as the active layer. In this fabrication, a commercially available sandpaper is employed as the mold to develop the hierarchical structure. Our devices exhibit fascinating performance including an ultrahigh sensitivity (64.3 kPa-1), fast response time (<8 ms), low limit of detection of 0.9 Pa, long-term durability (>100 000 cycles), and high ambient stability (>1 year). The applications of these devices in sensing radial artery pulses, acoustic vibrations, and human body motion are demonstrated, exhibiting their enormous potential use in real-time healthcare monitoring and robotic tactile sensing. PMID- 29345474 TI - Total Synthesis of Antiproliferative Parvifloron F. AB - The first total synthesis of parvifloron F, a bioactive highly oxidized abietane diterpene, was achieved. The abietane skeleton was constructed by Lewis acid promoted cyclization. Preliminary structure-activity relationship correlations were established for the synthetic intermediates against human tumor cell lines. Certain compounds showed unique selective antiproliferative activity against triple-negative breast cancer. The oxidation level of the abietane ring affected the selectivity. PMID- 29345475 TI - Transition-Metal-Free Regiospecific Aroylation of Nitroarenes Using Ethyl Arylacetates at Room Temperature. AB - A novel regiospecific C(sp3)-C(sp2) coupling between ethyl arylacetates and nitroarenes has been developed to deliver biaryl ketones in excellent yields. The protocol is metal-free, mild, and compatible with a number of functional groups on both of the reacting partners. PMID- 29345476 TI - Adapting a parenting intervention for parents aging out of the child welfare system: A systematic approach to expand the reach of an evidence-based intervention. AB - Parents aging out of the child welfare system face a constellation of unique risk factors that threaten the well-being of themselves and their children. Although parenting interventions are an important resource for providing much-needed services to parents aging out, there is currently a lack of evidence-based parenting interventions that address the unique needs of this population. The purpose of this project was to systematically adapt an evidence-based parenting intervention for parents aging out. An established adaptation framework was used to guide this process, and acceptability and feasibility outcomes were evaluated as part of a pilot study of the adapted intervention. Preliminary intervention adaptations included modifications to program delivery and program content. Study findings indicated a high level of parent satisfaction with the adapted intervention but challenges to feasibility because of inconsistent attendance and the substantial effort required for intervention delivery. This study constitutes a critical first step toward increasing the reach of evidence-based parenting interventions among parents aging out of the child welfare system and underscores the need for continued efforts to develop sustainable and effective parenting services for this at-risk population. (PsycINFO Database Record PMID- 29345477 TI - An exploratory study of stress and coping among Black college men. AB - Research on coping mechanisms among Black Americans is robust, yet there is a dearth of studies that use qualitative approaches to examine coping specifically among young Black men. The current and historical landscape of race relations in the United States calls for additional concern and exploration of this topic. To fill gaps in this area, this study uncovered the ways Black college men cope with various stressors that impact their mental health. Eleven qualitative interviews were conducted with 18- to 25-year-old Black men enrolled at a college in the Midwest who participated in the Young Black Men, Masculinities, and Mental Health (YBMen) project. Data were analyzed using a rigorous and accelerated data reduction technique that involved transferring transcript data onto spreadsheets, reducing the data, and conducting a rigorous content analysis to generate themes and subthemes. Participants reported that Black college men cope with stress by discussing their issues with members of their social support networks, engaging in physical activities, and relying on themselves. Some respondents reported that they intentionally avoided dealing with their mental health, whereas others attempted to make sense of their problems. Substance use, violence, and anger were all identified as markers of unaddressed stressors. Stigma emerged as a barrier to seeking help. Study findings highlight within-group differences among Black college men. Mental health researchers must continue to develop creative ways to examine stress and coping so that resources can become more culturally relevant and readily available both within and outside of the spaces Black men occupy. (PsycINFO Database Record PMID- 29345478 TI - Racial/ethnic differences of justice-involved youth in substance-related problems and services received. AB - This study examined differences in substance-related problems and receipt of substance-specific counseling in 7 different racial/ethnic groups of justice involved youth. Data came from a nationally representative sample of 7,073 youth in residential placement across 36 states representing 5 program types. Descriptive analyses and regression modeling techniques were used to examine the relationship between race/ethnicity, substance problems, and substance services. Results show that more than 2/3 report a history of at least 1 substance-related problem. Yet, over 12% of youth in residential placement are in programs that do not offer any substance-related services. This has the greatest implications for African American and Hispanic youth, who are most likely to be the programs without these services. Moreover, there are substantive differences in the prevalence of substance problems by race and ethnicity. American Indian/Alaska Natives and multiracial youth were significantly more likely to have substance problems, to be under the influence of drugs and/or alcohol at the time of the current offense, to have a history of substance problems and above average mental health need, and to have a history of substance problems and a lifetime suicide attempt compared to African Americans. Asian youth were similar to African Americans and had lower rates of substance problems. Asian youth were also the least likely to be under the influence of drugs and/or alcohol at the time of the current offense. This study provides important preliminary findings about Asian, Native Hawaiian/Pacific Islander, and multiracial justice-involved youth and adds to the knowledge about American Indian/Alaska Native populations. (PsycINFO Database Record PMID- 29345479 TI - Culturally adapted transdiagnostic CBT for SSRI-resistant Turkish adolescents: A pilot study. AB - The most common mental health problems among adolescents are anxiety and mood disorders. While disorder-specific cognitive behavior therapy (CBT) is effective for each of these conditions, the comorbidity between anxiety and mood disorders indicates a need for the development of evidence-based transdiagnostic treatments. To examine the efficacy of culturally adapted transdiagnostic CBT (CA CBT) in reducing symptoms of anxiety and depression in treatment-resistant Turkish adolescents, 13 adolescent participants with anxiety or mood disorders who were treatment resistant received 10 sessions of CA-CBT in group format. The main outcome measures were the Screen for Childhood Child Anxiety Related Disorders (SCARED), Beck Depression Inventory (BDI), and the Turkish Symptom and Syndrome Addendum (TSSA), which were assessed at baseline, posttreatment, and at 2-month follow-up. At posttreatment, there were large effect sizes for all measures: depression scores (BDI, d = .9), anxiety scores (SCARED, d = 1.1), and the Turkish Symptom and Syndrome Addendum (TSSA, d = 1.6). Moreover, at 2-month follow-up, depression and anxiety symptoms were either maintained or continued to improve such that from pretreatment to follow-up the effect sizes were as follows: depression scores (BDI, d = 1.4), anxiety scores (SCARED, d = 1.7), and the Turkish Symptom and Syndrome Addendum (TSSA, d = 2.4). In addition, there were no dropouts across treatment. This open trial suggests that CA-CBT is effective in reducing anxiety and depression symptoms and that the treatment is well accepted. A full randomized controlled trial to verify the effectiveness of transdiagnostic CA-CBT in similar populations is needed. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29345480 TI - Psychometric evaluation of depression measures with Northern Plains Indians. AB - Numerous psychometric measurements are used to assess for mental health problems in Native American and Alaskan Native (AI/AN) populations; however, few studies have been carried out to assess their validity and reliability within these populations. This study was designed to assess the validity and reliability of numerous measures among the Northern Plains Indians. This article is a partial report, focused on the psychometric measures directed at detecting depression, namely the Beck Depression Inventory (BDI) II, the Center for Epidemiologic Studies Depression (CES-D) Scale, the Tri-Ethnic Depression Scale (TEDS), the Beck Hopelessness Scale (BHS), the Beck Anxiety Inventory (BAI), and the Symptom Checklist-90-Revised (SCL-90-R). Results revealed moderate to strong correlation across all measures, alpha coefficients that exceeded published alphas for the general population, and overall indicated their validity and reliability of these measures, and a 2-factor solution for the BDI-II. While there were limitations to the study, analysis of the results supports the use of each measure with the Northern Plains Indians (NPI) subpopulation, that the NPI subpopulation scored similar to the general population. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29345481 TI - The influence of low-barrier and voluntary service policies on survivor empowerment in a domestic violence housing organization. AB - The purpose of community-based domestic violence crisis housing programs (e.g., shelters) is to provide a safe setting that promotes empowerment for survivors of intimate partner violence. For staff to reach this aim, the program must have formal structures and processes in place to support such efforts. This study explored how low-barrier and voluntary service policies influenced staff practices and survivor empowerment. Low-barrier policies require that programs remove barriers that prevent survivors, particularly those who have mental health concerns and/or addictions, from being able to access services. A voluntary service policy states that survivors have the right to choose which services, if any, they would like to engage in during their stay at the program. Survivors' ability to stay at the housing program is not contingent on their participation in program services. This exploratory-sequential (QUAL-> quan) mixed-method study examined how low-barrier and voluntary service policies influenced staff behavior and how these behaviors then related to survivor empowerment. Qualitative results revealed that low-barrier and voluntary service were guided by cultural values of justice and access, encouraged survivor-centered practices among staff, and were believed to promote survivor autonomy. Quantitative results suggested that when survivors perceived they had a choice to engage in program services or meet with an advocate, their empowerment increased. This study has implications for domestic violence organizational practice and provides evidence about the contextual factors that support individual empowerment. (PsycINFO Database Record (c) 2018 APA, all rights reserved). PMID- 29345482 TI - Subjects adjust criterion on errors in perceptual decision tasks. AB - The optimal strategy in detection theory is to partition the decision axis at a criterion C, labeling all events that score above C "Signal", and all those that fall below "Noise." The optimal position of C, C*, depends on signal probability and payoffs. If observers place their criterion at some place other than C*, they suffer a loss in the Expected Value (EV) of payoffs over the course of many decisions. We provide an explicit equation for the degree of loss, where it is shown that the falloff in value will be steep in contexts of good discrimination and will be a flatter gradient in contexts of poor discrimination. It is these gradients of loss in EV that, in theory, drive C toward C*, strongly when discrimination is good, weakly when discrimination is poor. When signal probabilities or distributions variances are unequal, the basins of attraction are asymmetric, so that dynamic adjustments in C will be asymmetric, and thus, as we show, will leave it biased. We address our analysis to acquisition speed, response variability, discrimination reversal and other aspects of discriminated performance. In the final section, we develop an error correction model that predicts empirically observed deviations from C* that are inconsistent with the standard model, but follow from the proposed model given knowledge of d'. (PsycINFO Database Record PMID- 29345483 TI - Editorial: Journal article reporting standards. AB - In this editorial, the author notes that this issue of American Psychologist features a pair of important articles related to newly updated standards for reporting research in psychology in scientific journals, covering both quantitative (Appelbaum et al., 2018) and qualitative (Levitt et al., 2018) research. The increasing breadth and complexity of research, and the importance of communicating it effectively, requires user-friendly resources that can be applied widely to scientific studies. These two articles are intended to serve that purpose, and to encourage thoroughness and accuracy in research reporting, for psychologists and other scientists in broader academic communities. The articles, known as the Journal Article Reporting Standards (JARS) reports, are based on the work of a task force appointed by the American Psychological Association (APA) Publications and Communications Board in 2015. (PsycINFO Database Record PMID- 29345484 TI - Journal article reporting standards for quantitative research in psychology: The APA Publications and Communications Board task force report. AB - Following a review of extant reporting standards for scientific publication, and reviewing 10 years of experience since publication of the first set of reporting standards by the American Psychological Association (APA; APA Publications and Communications Board Working Group on Journal Article Reporting Standards, 2008), the APA Working Group on Quantitative Research Reporting Standards recommended some modifications to the original standards. Examples of modifications include division of hypotheses, analyses, and conclusions into 3 groupings (primary, secondary, and exploratory) and some changes to the section on meta-analysis. Several new modules are included that report standards for observational studies, clinical trials, longitudinal studies, replication studies, and N-of-1 studies. In addition, standards for analytic methods with unique characteristics and output (structural equation modeling and Bayesian analysis) are included. These proposals were accepted by the Publications and Communications Board of APA and supersede the standards included in the 6th edition of the Publication Manual of the American Psychological Association (APA, 2010). (PsycINFO Database Record PMID- 29345485 TI - Journal article reporting standards for qualitative primary, qualitative meta analytic, and mixed methods research in psychology: The APA Publications and Communications Board task force report. AB - The American Psychological Association Publications and Communications Board Working Group on Journal Article Reporting Standards for Qualitative Research (JARS-Qual Working Group) was charged with examining the state of journal article reporting standards as they applied to qualitative research and with generating recommendations for standards that would be appropriate for a wide range of methods within the discipline of psychology. These standards describe what should be included in a research report to enable and facilitate the review process. This publication marks a historical moment-the first inclusion of qualitative research in APA Style, which is the basis of both the Publication Manual of the American Psychological Association (APA, 2010) and APA Style CENTRAL, an online program to support APA Style. In addition to the general JARS-Qual guidelines, the Working Group has developed standards for both qualitative meta-analysis and mixed methods research. The reporting standards were developed for psychological qualitative research but may hold utility for a broad range of social sciences. They honor a range of qualitative traditions, methods, and reporting styles. The Working Group was composed of a group of researchers with backgrounds in varying methods, research topics, and approaches to inquiry. In this article, they present these standards and their rationale, and they detail the ways that the standards differ from the quantitative research reporting standards. They describe how the standards can be used by authors in the process of writing qualitative research for submission as well as by reviewers and editors in the process of reviewing research. (PsycINFO Database Record PMID- 29345486 TI - Facilitating pipeline progress from doctoral degree to first job. AB - The sequence of professional development within psychology from doctoral education to first job represents a period of remarkable professional and personal growth for each trainee. However, this sequence also contains a variety of barriers that hinder progress through the pipeline. The myriad individual-, program-, and system-level barriers encountered by trainees in health service/other applied service psychology and in research basic/applied psychology are identified. To actively and systematically facilitate improved passage through major transition points, individual trainee and trainer, program- and system-level action steps are recommended. In addition, emphasis is placed on ensuring that the psychology education and training culture prioritizes the progress, creativity, and flourishing of trainees and supports their movement through branching pipelines in their training and in their careers. (PsycINFO Database Record PMID- 29345487 TI - On the general acceptance of confessions research: Opinions of the scientific community. AB - Eighty-seven experts on the psychology of confessions-many of whom were highly published, many with courtroom experience-were surveyed online about their opinions on 30 propositions of relevance to deception detection, police interrogations, confessions, and relevant general principles of psychology. As indicated by an agreement rate of at least 80%, there was a strong consensus that several findings are sufficiently reliable to present in court. This list includes but is not limited to the proposition that the risk of false confessions is increased not only by explicit threats and promises but by 2 common interrogation tactics-namely, the false evidence ploy and minimization tactics that imply leniency by offering sympathy and moral justification. Experts also strongly agreed that the risk of undue influence is higher among adolescents, individuals with compliant or suggestible personalities, and those with intellectual impairments or diagnosed psychological disorders. Additional findings indicated that experts set a high standard before judging a proposition to be sufficiently reliable for court-and an even higher standard on the question "Would you testify?" Regarding their role as scientific experts, virtually all respondents stated that their primary objective was to educate the jury and that juries are more competent at evaluating confession evidence with assistance from an expert than without. These results should assist trial courts and expert witnesses in determining what aspects of the science are generally accepted and suitable for presentation in court. (PsycINFO Database Record PMID- 29345488 TI - Risky business: Correlation and causation in longitudinal studies of skill development. AB - Developmental theories often posit that changes in children's early psychological characteristics will affect much later psychological, social, and economic outcomes. However, tests of these theories frequently yield results that are consistent with plausible alternative theories that posit a much smaller causal role for earlier levels of these psychological characteristics. Our article explores this issue with empirical tests of skill-building theories, which predict that early boosts to simpler skills (e.g., numeracy or literacy) or behaviors (e.g., antisocial behavior or executive functions) support the long term development of more sophisticated skills or behaviors. Substantial longitudinal associations between academic or socioemotional skills measured early and then later in childhood or adolescence are often taken as support of these skill-building processes. Using the example of skill-building in mathematics, we argue that longitudinal correlations, even if adjusted for an extensive set of baseline covariates, constitute an insufficiently risky test of skill-building theories. We first show that experimental manipulation of early math skills generates much smaller effects on later math achievement than the nonexperimental literature has suggested. We then conduct falsification tests that show puzzlingly high cross-domain associations between early math and later literacy achievement. Finally, we show that a skill-building model positing a combination of unmeasured stable factors and skill-building processes can reproduce the pattern of experimental impacts on children's mathematics achievement. Implications for developmental theories, methods, and practice are discussed. (PsycINFO Database Record PMID- 29345496 TI - Feedback from the European Bioanalysis Forum: focus workshop on current analysis of immunogenicity: best practices and regulatory hurdles. AB - European Bioanalysis Forum Workshop, Lisbon, Portugal, September 2016: At the recent European Bioanalysis Forum Focus Workshop, 'current analysis of immunogenicity: best practices and regulatory hurdles', several important challenges facing the bioanalytical community in relation to immunogenicity assays were discussed through a mixture of presentations and panel sessions. The main areas of focus were the evolving regulatory landscape, challenges of assay interferences from either drug or target, cut-point setting and whether alternative assays can be used to replace neutralizing antibody assays. This workshop report captures discussions and potential solutions and/or recommendations made by the speakers and delegates. PMID- 29345497 TI - Experiences of menopause, self-management strategies for menopausal symptoms and perceptions of health care among immigrant women: a systematic review. AB - OBJECTIVE: To systematically review the published literature relating to experiences of menopause, self-management strategies for menopausal symptoms and health-care needs among immigrant women. METHODS: A systematic literature search of English-language publications was performed using Medline, Embase, PsychInfo, Cinahl and Scopus. Twenty-four papers reporting on 19 studies met our inclusion criteria and investigated immigrant women's experiences of menopause and/or their self-management strategies for menopausal symptoms and/or their perceptions of menopause-specific health care. FINDINGS: Of the 19 studies, 15 reported symptoms experienced during the menopausal transition. Three studies included questions regarding self-management strategies for menopausal symptoms and four enquired about perceptions of menopause-specific health care. Although the heterogeneity of the studies makes comparison difficult, their findings are broadly consistent. Immigrant women reported more vasomotor symptoms and other physical symptoms and poorer mental health than non-immigrant women. The few studies that investigated self-management strategies for menopausal symptoms found that these were influenced by culture and those that assessed perceptions of menopause-specific health care found that they were mostly dissatisfied with the care they had received. CONCLUSION: More research is needed to improve understanding of how immigrant women manage the menopausal transition and how to provide culturally relevant menopause-specific health care. PMID- 29345498 TI - Effects of blueberry and cranberry consumption on type 2 diabetes glycemic control: A systematic review. AB - The metabolic effects of cranberry and blueberry consumption on glycemic control have been evaluated in vitro and in animal models as well as in human studies, although findings have not been systematically reviewed yet. Therefore, a systematic review was carried out of relevant randomized clinical trials (RCTs) in order to assess the effect of berries (blueberry and cranberry) consumption on type 2 diabetes (T2DM) glycemic control. Some evidences were also discussed on the anti-diabetic mechanisms exerted by berries polyphenols. Studies were identified by searching electronic databases: LILACS, PubMed/MEDLINE, Scopus, The Cochrane Library and Web of Science. Three authors independently searched and extracted RCTs in which the effect of berries (cranberry or blueberry) consumption on T2DM glycemic control was assessed. A total of 7 RCTs, involving 270 adults with type 2 diabetes were included. Despite the heterogeneity of the administration forms (in natura, dried, extract, preparations - juice), dosage, duration of the intervention and type of population of the studies involving these two berries some studies highlight the potential benefit of berries, especially of blueberry, on glucose metabolism in T2DM subjects. Daily cranberry juice (240 mL) consumption for 12 weeks and blueberry extract or powder supplementation (9.1 to 9.8 mg of anthocyanins, respectively) for 8 to 12 weeks showed a beneficial effect on glucose control in T2DM subjects. Those results indicate a promising use of these berries in T2DM management; although more studies are required to better understand the mechanisms involved. PMID- 29345499 TI - Disrupted behaviour in grammatical morphology in French speakers with autism spectrum disorders. AB - Mixed and inconsistent findings have been reported across languages concerning grammatical morphology in speakers with Autism Spectrum Disorders (ASD). Some researchers argue for a selective sparing of grammar whereas others claim to have identified grammatical deficits. The present study aimed to investigate this issue in 26 participants with ASD speaking European French who were matched on age, gender and SES to 26 participants with typical development (TD). The groups were compared regarding their productivity and accuracy of syntactic and agreement categories using the French MOR part-of-speech tagger available from the CHILDES. The groups significantly differed in productivity with respect to nouns, adjectives, determiners, prepositions and gender markers. Error analysis revealed that ASD speakers exhibited a disrupted behaviour in grammatical morphology. They made gender, tense and preposition errors and they omitted determiners and pronouns in nominal and verbal contexts. ASD speakers may have a reduced sensitivity to perceiving and processing the distributional structure of syntactic categories when producing grammatical morphemes and agreement categories. The theoretical and cross-linguistic implications of these findings are discussed. PMID- 29345500 TI - Effects of L-Arginine Supplementation on Leukogram, Inflammatory Bowel Infiltrates and Immunoglobulins with 5-FU Use in Rats. AB - This study evaluated the effects of L-arginine supplementation on blood parameters, kidney and liver function, immunoglobulins and noninflammatory infiltrates in the small intestines of rats subjected to chemotherapy with 5 fluorouracil (5-FU). Thirty-two Wistar rats were randomly distributed into 4 groups (8 rats/group): an untreated control group, and test groups receiving one dose of 5-FU (G5-FU group), one dose of 5-FU and 295 mg L-arginine/day (GArg295 group) or one dose of 5-FU and 458 mg L-arginine/day (GArg458 group). Neutrophil count, platelet count, serum IgA, and fibrinogen levels in GArg295 and GArg458 remained within normal limits after chemotherapy. In addition, in GArg458 the inflammatory bowel infiltrates improved in 57% of the rats, which showed mild inflammation. The results suggest that daily supplementation with 295 or 458 mg L arginine attenuates the side effects of 5-FU, including thrombocytopenia and neutropenia, and modulates IgA production. Supplementation with 458 mg of L arginine/day can also reduce mucositis levels in the small intestine after 5-FU chemotherapy. PMID- 29345501 TI - 'It's nothing you could ever prepare anyone for': the experiences of young people and their families following parental stroke. AB - AIMS: This study sought to explore the experiences of young people (aged 8-16) and their families following parental acquired brain injury (ABI), with the aim of developing an understanding of the ways in which members of a family make sense of events post-injury, and to consider the implications of different perspectives on adjustment and coping. DESIGN: The study applied a qualitative approach using a thematic analysis methodology. PROCEDURE: Individual semi structured interviews were conducted with 10 individuals from three families affected by parental stroke. RESULTS: Findings suggested that post-injury, families experienced a period of uncertainty in which they were required to renegotiate their roles and adjust to the loss associated with parental stroke. Additionally, the psychosocial wellbeing of young people was negatively affected, whilst protective and coping strategies were recognised. CONCLUSIONS: The research offers an insight into the processes that may contribute to patterns of interpersonal relating that could negatively impact on adjustment. Provision of adequate information, psychological and practical support during recovery may therefore be crucial elements of supporting young people and their families in adjusting to the challenges posed by stroke. PMID- 29345502 TI - Extended 3D and 4D cumulative plots for evaluation of unmatched incurred sample reanalysis. AB - AIM: Incurred sample reanalysis (ISR) helps ensure the reliability of pharmacokinetic studies. An appropriate graph may facilitate the evaluation of an unmatched reanalyses or a failed ISR test. METHODS: We evaluated different ways of visualizing multidimensional ISR data using an extended cumulative ISR plot. RESULTS: 3D and 4D cumulative ISR plots enable comprehensive data analysis using a single plot. We propose to use color for percentage difference classes in bar and XY-scatter plots. For the latter the shape of symbols may represent analyte concentration class, study phase, analyst or subject. CONCLUSION: The extended 3D and 4D cumulative ISR plots facilitate in-study monitoring and post-study inspection of data. It helps find the root cause of unmatched ISR, thus increasing reliability of bioanalytical data. PMID- 29345503 TI - Effectiveness of the Biophysical Barriers to the Peridural Fibrosis in Rat Laminectomy Model. AB - PURPOSE: Peridural fibrosis which could occur after the spinal surgery could adhere neural tissue closely and may cause to neural entrapment symptoms and require surgical reintervention. AIM OF THE STUDY: Present study was designed to reduce occurrence of peridural fibrosis in rat laminectomy model by using biophysical barriers called hyaluronic acid (HAS) dural barrier, activated polyethylene glycol and polyethylene imine (PEG) dural barrier, and platelet-rich plasma (PRP). MATERIALS AND METHODS: In this study, 2 of 26 male Wistar albino rats (325-350 g body weight), which were not included into study groups were sacrificed by removing their total blood and their blood was used for preparation of PRP, and remaining rats were randomly delivered into four groups called SHAM, HAS, PEG, and PRP groups. Then L3-4-5 laminectomy was performed to all animals and experimental agents were administered to the selected groups mentioned above. Spinal colons of all animals were removed gross total after 6-week period and investigated histopathologically. Additionally, real-time-polymerase chain reaction was used to obtain collagen type I and type III, transforming growth factor-1beta, and tumor necrosis factor-alpha gene expressions. RESULTS: All results demonstrated that polyethylene glycol and polyethylene imine dural barrier and PRP could decrease peridural fibrosis formation efficiently in rat. CONCLUSION: Present study results suggested that to reduce or block formation of peridural fibrosis, either polyethylene glycol and polyethylene imine dural barrier or PRP could be used effectively in human subjects after they will be closely investigated in future studies. PMID- 29345504 TI - Development of the HOOSglobal to Assess Patient-Reported Outcomes in Patients Undergoing Hip Preservation Procedures. AB - BACKGROUND: The creation of a single patient-reported outcome (PRO) platform validated across hip preservation, osteoarthritis (OA), and total hip arthroplasty (THA) populations may reduce barriers and streamline the routine collection of PROs in clinical practice. As such, the purpose of this study was to determine if augmenting the Hip disability and Osteoarthritis Outcome Score Joint Replacement (HOOS, JR) with additional HOOS questions would result in a PRO platform that could be used across a wider spectrum of hip patient populations. HYPOTHESIS: The HOOS, JR would demonstrate a notable ceiling effect, but by augmenting the HOOS, JR with additional HOOS questions, a responsive PRO platform could be created. STUDY DESIGN: Cohort study (diagnosis); Level of evidence, 2. METHODS: Using preoperative and postoperative HOOS responses from a sample of 304 patients undergoing periacetabular osteotomy (PAO), additional items were identified to augment the HOOS, JR. The psychometric properties of a newly created PRO tool (HOOSglobal) were then compared with the HOOS, JR and other PRO instruments developed for patients with hip OA and/or undergoing THA. RESULTS: By augmenting the HOOS, JR with 2 additional questions, the HOOSglobal was more responsive than all other included PRO tools and had significantly fewer maximum postoperative scores than the HOOS, JR ( P < .0001), HOOS-Physical Function Short form ( P < .0001), Western Ontario and McMaster Universities Osteoarthritis Index ( P = .02), University of California, Los Angeles activity scale ( P = .0002), and modified Harris Hip Score ( P = .04). The postoperative HOOSglobal score threshold associated with patients achieving the patient acceptable symptom state (PASS) was 62.5. CONCLUSION: The HOOSglobal is a valid and responsive PRO tool after PAO and may potentially provide the orthopaedic community with a PRO platform to be used across hip-related subspecialties. For patients undergoing PAO, a postoperative HOOSglobal score >=62.5 was associated with patients achieving the PASS. PMID- 29345505 TI - The pharmacological management of metabolic syndrome. AB - INTRODUCTION: The metabolic syndrome includes a constellation of several well established risk factors, which need to be aggressively treated in order to prevent overt type 2 diabetes and cardiovascular disease. While recent guidelines for the treatment of individual components of the metabolic syndrome focus on cardiovascular benefits as resulted from clinical trials, specific recent recommendations on the pharmacological management of metabolic syndrome are lacking. The objective of present paper was to review the therapeutic options for metabolic syndrome and its components, the available evidence related to their cardiovascular benefits, and to evaluate the extent to which they should influence the guidelines for clinical practice. Areas covered: A Medline literature search was performed to identify clinical trials and meta-analyses related to the therapy of dyslipidemia, arterial hypertension, glucose metabolism and obesity published in the past decade. Expert commentary: Our recommendation for first-line pharmacological are statins for dyslipidemia, renin-angiotensin aldosteron system inhibitors for arterial hypertension, metformin or sodium/glucose cotransporter 2 inhibitors or glucagon-like peptide 1 receptor agonists (GLP-1RAs) for glucose intolerance, and the GLP-1RA liraglutide for achieving body weight and waist circumference reduction. PMID- 29345506 TI - Effects of physical and depressive symptoms on the sexual life of Turkish women in the climacteric period. AB - OBJECTIVE: To assess the effects of physical and depressive symptoms on the sexual life of women in the climacteric period. METHODS: This study was conducted with 572 women at a university hospital. The Beck Depression Inventory (BDI), Menopause Rating Scale (MRS) and Female Sexual Function Index (FSFI) were used to evaluate depressive symptoms, intensity of menopausal symptoms and sexual function. RESULTS: Sexual dysfunction and depressive symptoms were determined in 86.4% and 54.9% of the women, respectively. In univariate analysis, women without health insurance, with low income, being married for longer than 21 years and being in menopause had low FSFI but high BDI and MRS scores. In multiple regression analysis, advanced age of women, women with low income, unemployed women, low educated women and their husbands and women with depressive symptoms had low FSFI scores. There was a negative relationship between total FSFI and MRS and BDI scores. CONCLUSION: Determination and treatment of sexual, emotional and physical problems in the climacteric period are very important for the improvement of the quality of life of women. PMID- 29345508 TI - Response by Twin Italian Hub Hospitals in a Double Seismic Event: A Retrospective Observational Investigation. AB - INTRODUCTION: The objectives of this study were to compare prevalence rates of different pathologies, ambulance system and emergency department management times, and patient survival and hazard ratios for codes 2 and 3 in two hub hospitals in Modena in the 36-month period across the stages of two major earthquakes in short sequence in Northern Italy in 2012. METHODS: Clinical records pertaining to the emergency care of patients were analyzed and only those assigned status codes 2 and 3 by ambulance professionals were included (if the assessment was confirmed by emergency department triage). The statistical analysis of data was divided by three time periods studied: before, during/between, and after the earthquakes. RESULTS: Among the 2,278 retained records, there were no statistically significant differences in the prevalence of the main pathologies presented at the two hubs in the studied period. A Cox regression model was used to analyze the survival of patients in the different stages of the emergency; there were no statistically significant differences in the hazard ratios of death before, during, and after the earthquake. The study found a significant increase in emergency department treatment times. DISCUSSION: Redundancies in the Modena medical system were found to have compensated for damaged hospital facilities. In particular, they helped emergency systems reorganize themselves faster in order to bring medical assistance to people during and around seismic events with as a minimal amount of disruption as possible. CONCLUSION: The Modena medical system was redundant and ensured that disrupted emergency systems were reorganized and put back online while damaged hospital facilities were compensated for/reproduced elsewhere. PMID- 29345509 TI - Corrigendum. PMID- 29345507 TI - Ovarian tissue cryopreservation in young females through the Oncofertility Consortium's National Physicians Cooperative. AB - AIM: To characterize the clinical indications of females (<15 years old) undergoing ovarian tissue cryopreservation (OTC) through the Oncofertility Consortium's National Physicians Cooperative (OC-NPC). PATIENTS & METHODS: The clinical indications of 114 females who underwent OTC were classified, and their incidence was compared with childhood cancer databases. RESULTS: Leukemias/myeloproliferative diseases/myelodysplastic diseases and hemoglobinopathies were the most prevalent oncologic and nononcologic indications for OTC, respectively. The frequencies of malignant bone tumors and soft tissue and other extraosseous sarcomas were higher in the OC-NPC cohort relative to the general population, while CNS/intracranial/intraspinal neoplasms, retinoblastoma and hepatic tumors were lower. CONCLUSION: Those opting for OTC through the OC NPC are at highest fertility risk, indicating that the appropriate patient populations are being identified. [Formula: see text]. PMID- 29345510 TI - Preliminary Evaluation of the Viability of Peritoneal Drainage Catheters Implanted in Rats for Extended Durations. AB - : Purpose/Aim: In developing a novel peritoneal oxygenation therapy, catheters implanted into the peritoneal cavity became obstructed with omental tissue and prevented the infusion and removal of fluid from the peritoneal cavity. The obstruction of peritoneal catheters is a significant failure in researching various peritoneal treatments as further fluid administration is no longer possible. The purpose of this preliminary study was to determine the most effective catheter design for infusion and removal of fluid into the peritoneal cavity of rats. MATERIALS AND METHODS: Four types of catheters were tested including the Jackson-Pratt, round fluted drain, flat fluted drain, and an original design. Three of each catheter type were surgically placed into the peritoneal cavity of rats (n = 12). In order to test the efficacy of each catheter, saline was infused and extracted twice daily. Catheters were scored on a weighted scale based on the amount of time they remained patent, the subjective force needed for extraction/infusion, and the amount of saline removed. RESULTS: The round and flat fluted drain catheters remained patent for the full duration of the study (12 days) compared to the other models which failed after 7 days. These catheters also yielded a high average for extracted saline volume and an easy extraction/infusion. CONCLUSIONS: The round and flat fluted drain catheters were recognized as viable options to be used in rats for peritoneal drain studies of up to 12 days. PMID- 29345511 TI - Clinical Characteristics of Herpes Simplex Virus Associated Anterior Uveitis. AB - PURPOSE: The aim of this study is to describe the clinical characteristics of molecularly proven Herpes simplex virus (HSV) anterior uveitis. METHODS: The literature on HSV anterior uveitis whereby the diagnosis was confirmed by polymerase chain reaction (PCR) and or Goldmann-Witmer coefficient in aqueous humor was reviewed. Three studies from Europe and one from Japan could be included. RESULTS: It was observed that HSV anterior uveitis is mostly an acute unilateral disease mainly occurring in middle-aged people with a predominance in females. The incidence of keratitis in HSV is between 33 and 41%. High intraocular pressure is frequently observed and ranged from 46 to 90%. Sectorial iris atrophy may be absent, especially early in the disease. CONCLUSION: The clinical characteristics of HSV anterior uveitis can mimic other viral and non infectious anterior uveitis entities especially at onset. Aqueous humor analysis for PCR and GWC can be useful in case of suspected viral uveitis. PMID- 29345512 TI - Physical Activity, Function, and Mortality in Advanced Age: A Longitudinal Follow Up (LiLACS NZ). AB - The relationship between physical activity, function, and mortality is not established in advanced age. Physical activity, function, and mortality were followed in a cohort of Maori and non-Maori adults living in advanced age for a period of 6 years. Generalized linear regression models were used to analyze the association between physical activity and Nottingham Extended Activities of Daily Living scale, whereas Kaplan-Meier survival analysis and Cox proportional hazard models were used to assess the association between the physical activity and mortality. The hazard ratio for mortality for those in the least active physical activity quartile was 4.1 for Maori and 1.8 for non-Maori compared with the most active physical activity quartile. There was an inverse relationship between physical activity and mortality, with lower hazard ratios for mortality at all levels of physical activity. Higher levels of physical activity were associated with lower mortality and higher functional status in advanced-aged adults. PMID- 29345513 TI - No Benefit in Neurologic Outcomes of Survivors of Out-of-Hospital Cardiac Arrest with Mechanical Compression Device. AB - INTRODUCTION: Out-of-hospital cardiac arrest (OHCA) is a major cause of death and morbidity in the United States. Quality cardiopulmonary resuscitation (CPR) has proven to be a key factor in improving survival. The aim of our study was to investigate the outcomes of OHCA when mechanical CPR (LUCAS 2 Chest Compression SystemTM) was utilized compared to conventional CPR. Although controlled trials have not demonstrated a survival benefit to the routine use of mechanical CPR devices, there continues to be an interest for their use in OHCA. METHODS: We conducted a retrospective observational study of OHCA comparing the outcomes of mechanical and manual chest compressions in a fire department based EMS system serving a population of 1.4 million residents. Mechanical CPR devices were geographically distributed on 11 of 33 paramedic ambulances. Data were collected over a 36-month period and outcomes were dichotomized based on utilization of mechanical CPR. The primary outcome measure was survival to hospital discharge with a cerebral performance category (CPC) score of 1 or 2. RESULTS: This series had 3,469 OHCA reports, of which 2,999 had outcome data and met the inclusion criteria. Of these 2,236 received only manual CPR and 763 utilized a mechanical CPR device during the resuscitation. Return of spontaneous circulation (ROSC) was attained in 44% (334/763) of the mechanical CPR resuscitations and in 46% (1,020/2,236) of the standard manual CPR resuscitations (p = 0.32). Survival to hospital discharge was observed in 7% (52/763) of the mechanical CPR resuscitations and 9% (191/2,236) of the manual CPR group (p = 0.13). Discharge with a CPC score of 1 or 2 was observed in 4% (29/763) of the mechanical CPR resuscitation group and 6% (129/2,236) of the manual CPR group (p = 0.036). CONCLUSIONS: In our study, use of the mechanical CPR device was associated with a poor neurologic outcome at hospital discharge. However, this difference was no longer evident after logistic regression adjusting for confounding variables. Resuscitation management following institution of mechanical CPR, specifically medication and airway management, may account for the poor outcome reported. Further investigation of resuscitation management when a mechanical CPR device is utilized is necessary to optimize survival benefit. PMID- 29345514 TI - Design and Validation of an Instrumented Uneven Terrain Treadmill. AB - Studying human and animal locomotion on an uneven terrain can be beneficial to basic science and applied studies for clinical and robotic applications. Traditional biomechanical analysis of human locomotion has often been limited to laboratory environments with flat, smooth runways and treadmills. The authors modified a regular exercise treadmill by attaching wooden blocks to the treadmill belt to yield an uneven locomotion surface. To ensure that these treadmill modifications facilitated biomechanical measurements, the authors compared ground reaction force data collected while a subject ran on the modified instrumented treadmill with a smooth surface with data collected using a conventional instrumented treadmill. Comparisons showed only minor differences. These results suggest that adding an uneven surface to a modified treadmill is a viable option for studying human or animal locomotion on an uneven terrain. Other types of surfaces (eg, compliant blocks) could be affixed in a similar manner for studies on other types of locomotion surfaces. PMID- 29345515 TI - Safety of biologic agents for psoriasis in patients with viral hepatitis. AB - INTRODUCTION: Biologics are highly effective, important treatment options for moderate-to-severe psoriasis. Biologics are well tolerated and have few side effects. However, the use of biologics in patients with concomitant chronic viral hepatitis is debatable. Recent reports have suggested a very low associated risk of reactivation of chronic hepatitis B (HBV) and C (HCB). OBJECTIVE: To evaluate the safety and effectiveness of biologics for moderate to severe psoriasis patients with concomitant chronic viral hepatitis. METHODS: We followed 39 patients with psoriasis and concurrent chronic viral hepatitis (chronic inactive and occult cases) with no clinical signs and/or lab indication of active liver disease) treated with biologic agents for at least 24 weeks. Patients were regularly monitored for reactivation of viral hepatitis with liver enzymes, viral DNA load, and viral markers. RESULTS: There was no evidence of viral reactivation until the last available lab investigation results (done three months after stopping the medication). None of the patients showed signs or symptoms of liver failure. CONCLUSION: The use of biologic therapy appeared safe and effective in this small cohort of selected patients with chronic HBV and HCV infection. Close monitoring for HBV and HCV viral load is recommended for patients with high-risk factors. PMID- 29345516 TI - Association between Weather-Related Factors and Cardiac Arrest of Presumed Cardiac Etiology: A Prospective Observational Study Based on Out-of-Hospital Care Data. AB - OBJECTIVE: The objective of this study was to determine the association between weather-related factors and out-of-hospital cardiac arrest (OHCA) of presumed cardiac etiology. METHODS: This was a prospective observational study performed in a prehospital setting. Data from the Emergency Medical Service in Hamburg (Germany) and data from the local weather station were evaluated over a 5-year period. Weather data (temperature, humidity, air pressure, wind speed) were obtained every minute and matched with the associated rescue mission data. Lowess Regression analysis was performed to assess the relationship between the above mentioned weather-related factors and OHCA of presumed cardiac etiology. Additionally, varying measuring-ranges were defined for each weather-related factor in order to compare them with each other with regard to the probability of occurrence of OHCA. RESULTS: During the observation period 1,558 OHCA with presumed cardiac etiology were registered (age: 67 +/- 19 yrs; 62% male; hospital admission: 37%; survival to hospital discharge: 6.7%). Compared to moderate temperatures (5 - 25 degrees C), probability of OHCA-occurrence increased significantly at temperatures above 25 degrees C (p = 0.028) and below 5 degrees C p = 0.011). Regarding air humidity, probability of OHCA-occurrence increased below a threshold-value of 75% compared to values above this cut-off (p = 0.006). Decreased probability was seen at moderate atmospheric pressure (1000 hPa - 1020 hPa), whereas increased probability was seen above 1020 hPa (p = 0.023) and below 1000 hPa (p = 0.035). Probability of OHCA-occurrence increased continuously with increasing wind speed (p < 0.001). CONCLUSIONS: There are associations between several weather-related factors such as temperature, humidity, air pressure, and wind speed, and occurrence of OHCA of presumed cardiac etiology. Particularly dangerous seem to be cold weather, dry air and strong wind. PMID- 29345517 TI - PET-adapted therapy for advanced Hodgkin lymphoma - systematic review. AB - INTRODUCTION: Positron emission tomography-computed tomography (PET-CT) performed after two chemotherapy cycles (PET-2) has become an accepted prognostic tool in Hodgkin lymphoma (HL). We evaluated the effect of PET-adapted strategy on outcome in advanced stage HL. METHODS: In August 2017, we searched electronic databases, conference proceedings and ongoing trials. We included all studies in which treatment modification for advanced HL was performed based on the results of the interim PET scan. The primary analysis included randomized controlled trials (RCTs). Outcomes were progression-free survival (PFS) and overall survival (OS). RESULTS: We identified 13 studies (4 RCTs, 7 phase II and 2 retrospective studies), conducted between 1999 and 2014, including 6856 patients. Of the four RCTS: one used therapy escalation, one did de-escalation and two trials performed both. Outcomes were assessed at different time point between 2 and 5 years. Three RCTs for de-escalating therapy, obtained similar outcomes despite reducing therapy, with a 2-year PFS of 88-92% (6 escalated BEACOPP (EB) vs. 4 ABVD cycles), a 5-year PFS of 91-92% (6/8 EB vs. 4 EB cycles) and a 5-year PFS of 80 82% (6 ABVD vs. omitting bleomycin after two successful ABVD cycles). Two RCTs implemented escalation. The randomization was between adding rituximab or not. In both trials, it did not affect outcome, with a 4-year PFS of 68-69% (addition of rituximab to BEACOPP after 2 ABVD cycles) and 5-year PFS of 88-90% (addition of rituximab to EB after 2 EB cycles). Performing true randomization between PET adapted and a standard ABVD control arm was not feasible, given historical data. CONCLUSIONS: This systematic review of PET-adapted therapy, mainly based on RCTs, suggests that a change to the treatment paradigm is appropriate in advanced HL. PMID- 29345518 TI - Bacterial pathogenesis and interleukin-17: interconnecting mechanisms of immune regulation, host genetics, and microbial virulence that influence severity of infection. AB - Interleukin-17 (IL-17) is a pro-inflammatory cytokine involved in the control of many different disorders, including autoimmune, oncogenic, and diverse infectious diseases. In the context of infectious diseases, IL-17 protects the host against various classes of microorganisms but, intriguingly, can also exacerbate the severity of some infections. The regulation of IL-17 expression stems, in part, from the activity of Interleukin-23 (IL-23), which drives the maturation of different classes of IL-17-producing cells that can alter the course of infection. In this review, we analyze IL-17/IL-23 signalling in bacterial infection, and examine the interconnecting mechanisms that link immune regulation, host genetics, and microbial virulence in the context of bacterial pathogenesis. We consider the roles of IL-17 in both acute and chronic bacterial infections, with a focus on mouse models of human bacterial disease that involve infection of mucosal surfaces in the lungs, urogenital, and gastrointestinal tracts. Polymorphisms in IL-17-encoding genes in humans, which have been associated with heightened host susceptibility to some bacterial pathogens, are discussed. Finally, we examine the implications of IL-17 biology in infectious diseases for the development of novel therapeutic strategies targeted at preventing bacterial infection. PMID- 29345519 TI - "I Just Roll Over, Pick Myself Up, and Carry On!" Exploring the Fall-Risk Experience of Canadian Masters Athletes. AB - OBJECTIVES: The risk of falling increases in adults aged 65 years and older. A common barrier to take up physical activity in sedentary older adults is the fear of falls and injury. Experiences of master athletes can provide insights into management of the risk of falling. The purpose of this phenomenological study was to explore the fall-risk experience of masters athletes actively competing in sport. METHODS: Masters athletes aged 55 years and older (N = 22) described their experiences in semistructured interviews. Data were analyzed through an interpretive-constructivist paradigm using inductive content analysis. RESULTS: Five dominant themes emerged: acceptance, learning, awareness, resilience, and self-fulfillment. Participants of this study reported an acceptance of the risk they take in sport for falls and injuries in their pursuits for self-fulfillment. DISCUSSION: Findings indicate that master athletes accept the risk for falls and injuries in sport, find ways to adapt, and continue to compete because it is self fulfilling. Sharing their experiences might inspire other older adults to get active as a rewarding means of remaining independent. PMID- 29345520 TI - Correlates of Physical Activity Among Middle-Aged and Older Adults With Hazardous Drinking Habits in Six Low- and Middle-Income Countries. AB - We investigated physical activity (PA) correlates among middle-aged and older adults (aged >=50 years) with hazardous drinking patterns in six low- and middle income countries. Cross-sectional data were analyzed from the World Health Organization's Study on Global Ageing and Adult Health. Hazardous drinking was defined as consuming >7 (females) or >14 (males) standard drinks per week. Participants were dichotomized into low (i.e., not meeting 150 min of moderate PA/week) and moderate-high physically active groups. Associations between PA and a range of correlates were examined using multivariable logistic regressions. The prevalence of low PA in 1,835 hazardous drinkers (60.5 +/- 13.1 years; 87.9% males) was 16.2% (95% confidence interval [13.9%, 18.9%]). Older age, living in an urban setting, being unemployed, depression, underweight, obesity, asthma, visual impairment, poor self-rated health, and higher levels of disability were identified as significant PA correlates. The current data provide important guidance for future interventions to assist older hazardous drinkers to engage in regular PA. PMID- 29345521 TI - Development and validation of an ELISA to study panitumumab pharmacokinetics. AB - AIM: Panitumumab is a monoclonal antibody directed against EGFR that is approved for the treatment of metastatic colorectal cancer. To investigate its pharmacokinetics and concentration-response relationship, a validated assay is required. RESULTS: An ELISA assay was developed and validated according to international recommendations. Six calibrators (ranging from 0.1 to 20 mg/l) plus one anchor point (50 mg/l) and three quality controls (0.45, 2 and 8 mg/l) were defined. The limit of detection, lower limit of quantification and upper limit of quantification were 0.033, 0.112 and 10 mg/l, respectively. CONCLUSION: This method is validated and can be used to study pharmacokinetics of panitumumab or to perform therapeutic drug monitoring. PMID- 29345522 TI - Goal setting practice in chronic low back pain. What is current practice and is it affected by beliefs and attitudes? AB - INTRODUCTION: Goal setting, led by the patient, is promising as an effective treatment for the management of chronic low back pain (CLBP); however, little is known about current practice. The aims of the study were to explore (1) current goal setting practice in CLBP among physiotherapists; (2) perceived barriers to goal setting in CLBP; and (3) relationship between clinician's attitudes and beliefs and goal setting practice. METHOD: A cross-sectional observational survey. RESULTS: The majority of respondents used goal setting with the main aim of facilitating self-management. The greatest number of goals were set with 50% therapist/50% patient involvement. The most common perceived barriers to goal setting related to time constraints and lack of skill and confidence. A higher biomedical score for treatment orientation of the therapist was associated with a lower patient involvement score. CONCLUSION: Goal setting is common practice for CLBP and is perceived as a high priority. It is more often a collaboration between therapist and patient rather than patient-led with treatment orientation of the physiotherapist a predictor of patient involvement. Education of healthcare professionals needs to include better understanding of chronic pain to orient them away from a biomedical treatment approach, as well as to enhance skills in facilitating patient involvement in goal setting. PMID- 29345524 TI - Recovery and Performance in Sport: Consensus Statement. AB - The relationship between recovery and fatigue and its impact on performance has attracted the interest of sport science for many years. An adequate balance between stress (training and competition load, other life demands) and recovery is essential for athletes to achieve continuous high-level performance. Research has focused on the examination of physiological and psychological recovery strategies to compensate external and internal training and competition loads. A systematic monitoring of recovery and the subsequent implementation of recovery routines aims at maximizing performance and preventing negative developments such as underrecovery, nonfunctional overreaching, the overtraining syndrome, injuries, or illnesses. Due to the inter- and intraindividual variability of responses to training, competition, and recovery strategies, a diverse set of expertise is required to address the multifaceted phenomena of recovery, performance, and their interactions to transfer knowledge from sport science to sport practice. For this purpose, a symposium on Recovery and Performance was organized at the Technical University Munich Science and Study Center Raitenhaslach (Germany) in September 2016. Various international experts from many disciplines and research areas gathered to discuss and share their knowledge of recovery for performance enhancement in a variety of settings. The results of this meeting are outlined in this consensus statement that provides central definitions, theoretical frameworks, and practical implications as a synopsis of the current knowledge of recovery and performance. While our understanding of the complex relationship between recovery and performance has significantly increased through research, some important issues for future investigations are also elaborated. PMID- 29345525 TI - Adsorption of lead ion from aqueous solution by modified walnut shell: kinetics and thermodynamics. AB - The novel modified walnut shell (WNS-MAH) with higher adsorption capacity for lead ion was prepared by reacting walnut shell (WNS) with maleic anhydride. Both WNS and WNS-MAH were analyzed by SEM and FTIR. The adsorption capacity of WNS-MAH for lead ion was evaluated at different adsorbent doses, pHs, time and temperatures. The adsorption kinetics and adsorption isotherms were investigated from (298 to 318) K. The adsorption kinetics of lead ion onto WNS-MAH were fitted using pseudo-first-order, pseudo-second-order and Elovich models. It was found that pseudo-second-order model gives the best correlation results. The diffusion mechanism was determined according to the intraparticle diffusion equation and Boyd equation. Results suggested the adsorption process was governed by film diffusion. The equilibrium adsorption data were fitted with the Freundlich model and the Langmuir model. The maximum adsorption capacity of WNS-MAH for lead ion removal was 221.24 mg/g at 318 K. The equilibrium adsorption data were analyzed using the D-R model, and the feature concentration ([Formula: see text]) was determined to distinguish chemisorption and physisorption. The thermodynamic parameters (DeltaG, DeltaH and DeltaS) were calculated. Additionally, the regeneration property was studied and the adsorption process was confirmed by energy disperse spectroscopy. PMID- 29345523 TI - Hexim1, an RNA-controlled protein hub. AB - Hexim1 acts as a tumor suppressor and is involved in the regulation of innate immunity. It was initially described as a non-coding RNA-dependent regulator of transcription. Here, we detail how 7SK RNA binds to Hexim1 and turns it into an inhibitor of the positive transcription elongation factor (P-TEFb). In addition to its action on P-TEFb, it plays a role in a variety of different mechanisms: it controls the stability of transcription factor components and assists binding of transcription factors to their targets. PMID- 29345526 TI - Differential Gait Patterns by History of Falls and Knee Pain Status in Healthy Older Adults: Results From the Baltimore Longitudinal Study of Aging. AB - Consideration of knee pain can be crucial for identifying fall-related gait patterns. While walking, gait parameters at usual speed were examined in persons with different falls and knee pain status. A total of 439 adults aged 60-92 years participated in this study. Persons with a history of falls had a wider stride width (p = .036) and longer double support time (p = .034) than nonfallers. In the absence of knee pain, fallers had longer double support time than nonfallers (p = .012), but no differences in double support time by history of falls were observed in participants with knee pain. With slower gait speed, fallers with knee pain have narrower stride width and larger hip range of motion (p = .027 and p = .001, respectively). Results suggest the importance of considering knee pain in fall studies for better understanding the fall-related differential gait mechanisms and for designing fall prevention intervention strategies. PMID- 29345528 TI - Linguistic analysis of patients with mood and anxiety disorders during cognitive behavioral therapy. AB - We analyzed the verbal behavior of patients with mood or/and anxiety disorders during psychotherapy. Investigating the words people used, we expected differences due to cognitive and emotional foci in patients with depression vs. anxiety. Transcripts of therapy sessions from 85 outpatients treated with cognitive behavioral therapy were analyzed using the software program Linguistic Inquiry and Word Count. Multivariate group comparisons were carried out investigating the LIWC-categories first-person-singular pronouns, sad, anxiety and fillers. Differences between the three diagnostic groups were found in verbal utterances related to sadness (p = .05). No differences were found for first person-singular pronouns and content-free fillers. Comparing the distinct groups "depression" and "anxiety", depressed patients used more words related to sadness (p = .01). Mood and anxiety disorders differ in the experience of emotions, but only slightly in self-focused attention. This points to differences in language use for different diagnostic groups and may help to improve diagnostic procedures or language-driven interventions which enhance therapists' attention to patients' verbal behavior. PMID- 29345527 TI - Does Problem Focused Coping Buffer the Effects of Trait Anxiety on Depressive Symptoms of Chronic Urticaria Patients? AB - The present study examined the moderating role of problem-focused coping in trait anxiety-depressive symptoms' relationship in patients with chronic urticaria (CU). Eighty-eight CU patients, who applied to an outpatient clinic of Clinical Immunology and Allergic Diseases, filled out a questionnaire set including State Trait Anxiety Inventory, Ways of Coping Inventory, and Beck Depression Inventory. The results suggested that CU patients high on trait anxiety reported more depressive symptoms, and the ones using more problem-focused coping (PFC) strategies reported less depressive symptoms. Also, PFC strategies moderated trait anxiety-depressive symptoms relation. Accordingly, PFC strategies did not lead to any significant difference in CU patients who were low on trait anxiety in terms of the level of depressive symptoms. However, CU patients with high trait anxiety experienced significantly less depressive symptoms if they used more PFC strategies. The findings were discussed in the light of the relevant literature. PMID- 29345529 TI - Effects of Telestroke on Thrombolysis Times and Outcomes: A Meta-analysis. AB - OBJECTIVE: Telestroke systems are tools, used to provide an advanced stroke care in regions without sufficient neurologic services. We performed this meta analysis to assess the effects of telemedicine on treatment times and clinical outcomes of acute stroke care. METHODS: A literature search of PubMed, SCOPUS, and Cochrane CENTRAL was conducted for original studies investigating telemedicine applications in acute stroke care. Dichotomous data on treatment outcomes were pooled as odds ratios (ORs), while continuous data on thrombolysis times were pooled as mean differences (MDs) with 95% confidence interval (CI), using RevMan software (version 5.3). RESULTS: Pooling data from 26 studies (6605 thrombolysed patients) showed no significant differences between the telestroke and control groups in terms of in-hospital mortality (OR = 1.21, 95% CI [0.98, 1.49]), 90-day mortality (OR = 1.08, 95% CI [0.85, 1.37]), symptomatic intracranial hemorrhage (sICH) (OR = 1.10, 95% CI [0.79, 1.53]), and favorable clinical outcome at discharge (OR = 1.03, 95% CI [0.69, 1.53]) and 90 days later (OR = 0.99, 95% CI [0.82, 1.18]). The onset-to-door (OTD) duration (MD = -10.4 minutes, 95% CI [-14.79, -.01]) and length of hospital stay (MD = -0.55 days, 95% CI [-1.02, -0.07]) were significantly shorter in the telestroke group, compared to the control group. Although the overall effect estimate (under the fixed effect model) showed a significant decrease in the onset-to-treatment (OTT) duration in the telestroke group (MD = -5.83 minutes, 95% CI [-8.57, -3.09]), employing the random-effects model for between-study heterogeneity abolished this significance (MD = -5.90 minutes, 95% CI [-13.23, 1.42]). CONCLUSION: Telestroke significantly reduced OTD and hospital stay durations in stroke patients without increasing the risk of mortality or sICH. Therefore, telemedicine can improve stroke care in regional areas with minor experience in thrombolysis. Further randomized controlled trials are needed to assess the benefits of telestroke systems, especially in terms of cost-effectiveness and quality of life outcomes. PMID- 29345530 TI - Who benefits from psychotherapies for adult depression? A meta-analytic update of the evidence. AB - It is not clear whether specific target groups for psychotherapies in adult depression benefit as much from these treatments as other patients. We examined target groups that have been examined in randomized trials, including women, older adults, students, minorities, patients with general medical disorders, and specific types of depression, and we examined where patients were recruited. We conducted subgroup and multivariate metaregression analyses in a sample of 256 trials (with 332 comparisons) comparing psychotherapy with an inactive control condition. Only 22% of the studies had low risk of bias (RoB), heterogeneity was high and there was a considerable risk of publication bias. A meta-regression analysis among low RoB studies showed that effect sizes found for studies among women, older adults, patients with general medical disorders, patients recruited from primary care, and patients scoring above a cut-off on a self-rating depression scale, did not differ significantly from effect sizes from other studies. For other target groups, the number of low RoB studies was too small to draw any conclusion. We found few indications that psychotherapies for adult depression are more or less effective in women, older adults, patients with comorbid general medical disorders, and primary care patients. PMID- 29345531 TI - How Tailoring the Mode of Information Presentation Influences Younger and Older Adults' Satisfaction with Health Websites. AB - Although older adults are increasingly using online health information, many websites are not senior-friendly, which might lead to user-problems and dissatisfaction among older people. It has been suggested that websites targeted at older adults should take into account age-related abilities and limitations, for example by providing the opportunity to adjust the modality (i.e., "mode") of information presentation based on visual and auditory capabilities. This study investigates the effects of a mode-tailored website, allowing users to self tailor the mode of information presentation, on younger and older adults' satisfaction with health websites. The results from a 5 (condition: tailored vs. text, text with visuals, text with audiovisual, combination) * 2 (age: younger [25-45] vs. older [>= 65] adults) experimental study (N = 563) show that mode tailoring positively influenced satisfaction with the attractiveness and comprehensibility of the website, as compared to non-tailored conditions. These effects on website satisfaction were not different for younger and older adults. The current study provides relevant insights for researchers and practitioners in the field of digital health communication. PMID- 29345532 TI - Ischemic Preconditioning: No Influence on Maximal Sprint Acceleration Performance. AB - Ischemic preconditioning (IPC) was initially developed to protect the myocardium from ischemia through altered cardiocyte metabolism. Because of the observed effects on metabolism and oxygen kinetics, IPC gained interest as a potential ergogenic aid in sports. Limited research evaluating the effects of IPC on maximal short-duration activities has been performed, and of the existing literature, mixed outcomes resulting from intrasubject variation may have clouded the efficacy of this technique for enhancing sprint performance. Therefore, the current study employed a randomized repeated-measures crossover design with IPC, placebo (SHAM), and control conditions while using sprint-trained athletes (N = 18) to determine the effect of IPC (3 * 5-min occlusions, with 5-min reperfusion), concluding 15 min prior to maximal 10-s and 20-m sprinting. A visual analog scale was used in conjunction with the sprint trials to evaluate any possible placebo effect on performance. Despite a "significantly beneficial" perception of the IPC treatment compared with the SHAM trials (P < .001), no changes in sprint performance were observed after either the IPC or SHAM condition over 10 m (IPC Delta < 0.01 [0.02] s, SHAM Delta < 0.01 [0.02] s) or 20 m (IPC Delta = -0.01 [0.03] s, SHAM Delta < 0.01 [0.03] s) compared with control. Thus, an IPC protocol does not improve 10- or 20-m sprint performance in sprint-trained athletes. PMID- 29345533 TI - Daily Bicycling in Older Adults May be Effective to Reduce Fall Risks-A Case Control Study. AB - Older adults gain many health benefits from riding bicycles regularly. We aimed to explore whether older persons who ride bicycles regularly have better balance than controls. Balance control and voluntary stepping were assessed in 20 older adults aged 65-85 years who live in an agricultural community village and who ride bicycles regularly, and 30 age- and gender-matched nonbicycle riders (NBR). Self-reported function and fear of fall were also assessed. Bicycle riders (BR) showed significantly better balance, faster voluntary stepping, and better self reported advanced lower-extremity function compared with NBR. The results might suggest that bicycling regularly preserves balance control and speed of voluntary stepping in older adults because bicycling might maintain specific balance coordination patterns. The results should be treated with caution as bicycle riders were older adults who selected an active lifestyle (i.e., bicycling as well as living in an agricultural village) that may bias the results. PMID- 29345534 TI - A new stipitate species of Crepidotus from India and Thailand, with notes on other tropical species. AB - A new Asian species of Crepidotus (Basidiomycota, Agaricales), C. asiaticus, is presented based on morphological and nuc rDNA internal transcribed spacer (ITS1 5.8S-ITS2 = ITS) and large subunit (28S) sequence data. This new species, found in India and Thailand, is characterized by the centrally stipitate medium-sized basidiomata, orange to reddish brown pileus, white to brownish orange lamellae, and white stipe. Based on morphology, C. asiaticus is similar to the neotropical C. thermophilus. However, the microscopic characters, especially the size and shape of the basidiospores, can be used to distinguish these two taxa, as well as their geographic distributions. Further, the phylogenetic position of C. asiaticus is unique based on ITS and 28S nuc rDNA sequences. Melanomphalia argipoda, described by Singer from Ecuador, is also a stipitate Crepidotus based on an ITS sequence of the type specimen, so the new combination is proposed here. Phylogenetically, the three species form a monophyletic group with the Asiatic C. asiaticus forming the sister lineage to the neotropical C. argipodus and C. thermophilus. PMID- 29345535 TI - Coping Styles Mediate Perfectionism Associations with Depression Among Undergraduate Students. AB - To better understand depression among adolescent university students, this study was designed to examine coping style as a potential mediator between perfectionism and depression. Participants comprised 510 undergraduate students from Malaysia. Structural Equation Modelling demonstrated that personal standards perfectionism and task-focused coping style were negatively associated with depression, while emotion-focused coping style, avoidant coping style, and evaluative concerns perfectionism were positively associated with depression. Multiple mediator modelling provided evidence that coping styles partially mediated the relationship between perfectionism and depression. These findings advance current knowledge by suggesting how perfectionism may contribute to depression and may inform the development of more effective prevention and intervention programs for depression. PMID- 29345536 TI - UASB-septic tank as an alternative for decentralized wastewater treatment in Mexico. AB - The aim of this work was to evaluate the performance of a UASB-septic tank as a decentralized treatment of high-strength municipal wastewater under two different HRTs (48 and 72 h). Thus, a lab-scale (44.85 L) UASB-septic tank constituted by three compartments was operated under HRT 72 and 48 h. Removal efficiencies of total chemical oxygen demand (COD), biological oxygen demand (BOD5) and suspended solids (SS) ranged from 60% to 80% for the first two parameters and from 70% to 90% for the last one. According to the statistical analysis, it was established that decreasing HRT from 72 to 48 h did not affect the performance of the UASB septic tank; therefore, the latter HRT is recommended to be used for operation. In the first compartment, most of the organic matter removal was carried out, while the other two compartments served as polishing. Over the course of six months, the VS concentration and VS/TS ratio in sludge blanket decreased, indicating digestion and stabilization of the retained solids. Also, an increase of 4% in sludge volume was observed; thus, time for desludging would be approximately five years. Comparison of the UASB-septic tank and the UASB reactor showed that both systems had similar performance regarding effluent concentrations of organic matter and solids. Thus, under low volumetric organic load conditions (less than 20 mg COD/L h), the former is an attractive option for municipal wastewater treatment. PMID- 29345537 TI - Postmatch Perceived Exertion, Feeling, and Wellness in Professional Soccer Players. AB - PURPOSE: To assess postmatch perceived exertion, feeling, and wellness according to the match outcome (winning, drawing, or losing) in professional soccer players. METHODS: In total, 12 outfield players were followed during 52 official matches where the outcomes (win, draw, or lose) were noted. Following each match, players completed both a 10-point Borg scale modified by Foster and an 11-point Hardy and Rejeski scale rating of perceived feeling. Rating of perceived sleep quality, stress, fatigue, and muscle soreness was collected separately on a 7 point scale the day following each match. RESULTS: Player rating of perceived exertion was higher by a very large magnitude following a loss compared with a draw or a win and higher by a small magnitude after a draw compared with a win. Players felt more pleasure after a win compared with a draw or loss and more displeasure after a loss compared with draw. The players reported a largely and moderately better perceived sleep quality, less stress, and fatigue following a win compared with a draw or a loss and a moderately bad perceived sleep quality, higher stress, and fatigue following a draw compared with a loss. In contrast, only a trivial-small change was observed in perceived muscle soreness between all outcomes. CONCLUSION: Match outcomes moderately to largely affect rating of perceived exertion, feeling, sleep quality, stress, and fatigue, whereas perceived muscle soreness remains high regardless of the match outcome. However, winning a match decreases the strain and improves both pleasure and wellness in professional soccer players. PMID- 29345538 TI - Real-time monitoring of nanoscale TiO2 concentration by spectrophotometry: implications of agglomeration due to natural organic matter and multivalent ions. AB - The study of the environmental fate of nanoscale TiO2 (n-TiO2) is a major recent research focus which requires a rapid and accurate on-site concentration determination method. Inductively coupled plasma mass spectroscopy (ICP-MS) has been the most widely used method for determining the concentration of n-TiO2 in environmental samples; however, poses many challenges, such as hazardous hydrofluoric acid pre-treatment and clear limitations in mobile on-site measurement and monitoring. This study demonstrates that industrial wastewater containing natural organic matter (NOM) can present a major challenge to the analysis of n-TiO2 by ICP-MS, and introduces a spectrophotometry technique that can be used as an alternative. The results suggest that spectrophotometry methods can be more accurate than slurry nebulization ICP-MS for measuring the concentrations of n-TiO2 in wastewater containing NOM under low salt conditions. Furthermore, this study demonstrates the use of a portable flow-through spectrophotometer for use in applications of wastewater treatment and environmental monitoring with real-time feedback of n-TiO2 concentrations. The ability to detect and monitor n-TiO2 will greatly assist in improving the understanding of hazards and risks that emerging nanomaterials pose to the environment and the public health. PMID- 29345539 TI - Working Memory Updating: Load and Binding. AB - In the present study, we aimed to examine how specific objects are updated in working memory. We compared conditions in which contents or content-context bindings from working memory were both encoded and updated (Experiment 1). In addition, for bindings, we manipulated the memory load (i.e., number of contents) to maintain during updating. Results indicated that memory load did not specifically affect the process; rather, the content-context binding (vs. single contents) was critical in determining the increase in response latencies. Results were replicated even in Experiment 2, in which we manipulated the spatial locations of the to-be-recognized probes. Results showed evidence of a potential dissociation between updating of memory contents-only and content-context bindings. In addition, memory load and spatial coherence between phases and probe recognition did not interact with updating performance. Overall, results were taken as a contribution toward mapping the complex nature of the updating mechanism. PMID- 29345541 TI - Running Mechanics and Metabolic Responses With Water Bottles and Bottle Belt Holders. AB - PURPOSE: To determine whether differential kinematics, kinetics, rates of energy use, and cardiopulmonary responses occur during running with water bottles and bottle belt holders compared with running only. METHODS: Trained runners (N = 42; age 27.2 [6.4] y) ran on an instrumented treadmill for 4 conditions in a randomized order: control run (CON), handheld full water bottle (FULL; 16.9 fluid oz; 454 g), handheld half-full water bottle (HALF; 8.4 fluid oz; 227 g), and waist-worn bottle belt holder (BELT; hydration belt; 676 g). Gas exchange was measured using a portable gas analyzer. Kinetic and kinematic responses were determined by standard 3-dimensional videographic techniques. Interactions of limb side (right and left) by study condition (CON, FULL, HALF, and BELT) were tested for rates of oxygen use and energy expenditure and kinematic and kinetic parameters. RESULTS: No significant limb-side * condition interactions existed for rates of oxygen use or energy expenditure. A significant interaction occurred with sagittal elbow flexion (P < .001). Transverse pelvic-rotation excursions differed on average 3.8 degrees across conditions. The minimum sagittal hip flexion moment was higher in the right leg in the HALF and BELT conditions compared with CON (P < .001). CONCLUSIONS: Carrying water by hand or on the waist does not significantly change the kinematics of running motion, rates of oxygen use and energy expenditure, or cardiopulmonary measures over short durations. Runners likely make adjustments to joint moments and powers that preserve balance and protect the lower-extremity joints while maintaining rates of oxygen use and energy expenditure. PMID- 29345542 TI - Effects of Late-Night Training on "Slow-Wave Sleep Episode" and Hour-by-Hour Derived Nocturnal Cardiac Autonomic Activity in Female Soccer Players. AB - PURPOSE: To assess the sensitivity of nocturnal heart-rate-variability-monitoring methods to the effects of late-night soccer training sessions in female athletes. METHODS: Eleven female soccer players competing in the first division of the Portuguese soccer league wore heart-rate monitors during sleep at night throughout a 1-wk competitive in-season microcycle, after late-night training sessions (n = 3) and rest days (n = 3). Heart rate variability was analyzed through "slow-wave sleep episode" (10-min duration) and "hour by hour" (all the RR intervals recorded throughout the hours of sleep). Training load was quantified by session rating of perceived exertion (281.8 [117.9] to 369.0 [111.7] arbitrary units [a.u.]) and training impulse (77.5 [36.5] to 110.8 [31.6] a.u.), added to subjective well-being ratings (Hopper index = 11.6 [4.4] to 12.8 [3.2] a.u.). These variables were compared between training and rest days using repeated-measures analysis of variance. RESULTS: The log-transformed slow-wave sleep-episode cardiac autonomic activity (lnRMSSD [natural logarithm of the square root of the mean of the sum of the squares of differences between adjacent normal RR intervals] varying between 3.92 [0.57] and 4.20 [0.60] ms; [Formula: see text]; 95% confidence interval, .01-.26), lnHF (natural logarithm of high frequency), lnLF (natural logarithm of low frequency), lnSD1 (natural logarithm of short-term beat-to-beat variability), and lnSD2 (natural logarithm of long term beat-to-beat variability), and the nontransformed LF/HF were not different among night-training session days and rest days (P > .05). Considering the hour by-hour method (lnRMSSD varying between 4.05 [0.35] and 4.33 [0.32] ms; [Formula: see text]; 95% confidence interval, .26-.52), lnHF, lnLF, lnSD1, and lnSD2 and the nontransformed LF/HF were not different among night-training session days and rest days (P > .05). CONCLUSION: Late-night soccer training does not seem to affect nocturnal slow-wave sleep-episode and hour-by-hour heart-rate-variability indices in highly trained athletes. PMID- 29345540 TI - Cost-effectiveness analysis of asymptomatic peripheral artery disease screening with the ABI test. AB - Screening for asymptomatic peripheral artery disease (aPAD) with the ankle brachial index (ABI) test is hypothesized to reduce disease progression and cardiovascular (CV) events by identifying individuals who may benefit from early initiation of medical therapy. Using a Markov model, we evaluated the cost effectiveness of initiating medical therapy (e.g. statin and ACE-inhibitor) after a positive ankle-brachial index (ABI) screen in 65-year-old patients. We modeled progression to symptomatic PAD (sPAD) and CV events with and without ABI screening, evaluating differences in costs and quality-adjusted life years (QALYs). The cost of the ABI test, physician visit, new medication, CV events, and interventions for sPAD were incorporated in the model. We performed sensitivity analysis on model variables with uncertainty. Our model found an incremental cost of US $338 and an incremental QALY of 0.00380 with one-time ABI screening, resulting in an incremental cost-effectiveness ratio (ICER) of $88,758/QALY over a 35-year period. The variables with the largest effects in the ICER were aPAD disease prevalence, cost of monthly medication after a positive screen and 2-year medication adherence rates. Screening high-risk populations, such as tobacco users, where the prevalence of PAD may be 2.5 times higher, decreases the ICER to $24,092/QALY. Our analysis indicates the cost effectiveness of one-time screening for aPAD depends on prevalence, medication costs, and adherence to therapies for CV disease risk reduction. Screening in higher-risk populations under favorable assumptions about medication adherence results in the most favorable cost effectiveness, but limitations in the primary data preclude definitive assessment of cost effectiveness. PMID- 29345543 TI - Physical Activity and Sitting Time Are Specifically Associated With Multiple Chronic Diseases and Medicine Intake in Brazilian Older Adults. AB - The purpose of the study was to clarify the independent association between sedentary behavior and physical activity with multiple chronic diseases and medicine intake in older individuals. Sedentary behavior and physical activity were measured by questionnaires. Diseases and medication use were self-reported. Poisson's regression was adopted for main analysis, through crude and adjusted prevalence ratio and confidence interval of 95%. For men, sedentary time >4 hr/day presented a 76% higher prevalence of >=2 chronic diseases, while physical inactivity increases the likelihood of using >=2 medicines in 95%. For women, sedentary behavior >4 hr/day presented an 82% and 43% greater prevalence for >=2 chronic diseases and the intake of >=2 medicines, respectively. Sedentary behavior represents an independent associated factor of multiple chronic diseases in older men and women. In addition, inactivity for men and sedentarism for women are associated with the amount of medicine intake. PMID- 29345544 TI - Editorial. PMID- 29345545 TI - Decisive Moment: A Metric to Determine Success in Elite Karate Bouts. AB - PURPOSE: To evaluate the concept of decisive moment (DM) as a novel analysis approach providing insights into factors leading to successful high-performance kumite karate outcomes using time-motion variables. DM represents the moment from which 1 of the 2 opponents uninterruptedly dominates the other until the end of the fight. METHODS: A total of 120 elite seniors (60 men and 60 women) World Karate Federation combats were analyzed during 2 World Championships (2012 and 2014). Specific characteristics of karate combat (strategy, technique, tactic, target, and effectiveness) were evaluated and classified in 3 sections: at, before, and after DM. RESULTS: DM occurred at about 49% (32.8%) of bout duration. Up to DM no clearly identifiable differences in performance characteristics were found between winners and losers. At and after DM, an offensive strategy with focus on upper-limb techniques, attack and counterattack, targeting the head showed highest potential to achieve and maintain dominance and to win. After DM, losers showed increasingly reactive techniques, mainly timed attacks and combinatory techniques. CONCLUSION: The DM concept presents a novel approach to time-motion analysis, which for the first time allowed identification of clear discriminating factors of success and defeat in kumite karate at the highest performance level. PMID- 29345546 TI - Enhanced biosorption of transition metals by living Chlorella vulgaris immobilized in Ca-alginate beads. AB - In this study freely suspended and Ca-alginate immobilized C. vulgaris cells were used for the biosorption of Fe(II), Mn(II), and Zn(II) ions, from the aqueous solution. Experimental data showed that biosorption capacity of algal cells was strongly dependent on the operational condition such as pH, initial metal ions concentration, dosages, contact time and temperature. The maximum biosorption of Fe(II) 43.43, Mn(II) 40.98 and Zn(II) 37.43 mg/g was achieved with Ca-alginate immobilized algal cells at optimum pH of 6.0, algal cells dosage 0.6 g/L, and contact time of 450 min at room temperature. The biosorption efficiency of freely suspended and immobilized C. vulgaris cells for heavy metals removal from the industrial wastewater was validated. Modeling of biosorption kinetics showed good agreements with pseudo-second-order. Langmuir and D-R isotherm models exhibited the best fit of experimental data. The thermodynamic parameters (DeltaG degrees , DeltaH degrees , and DeltaS degrees ) revealed that the biosorption of considered metal ions was feasible, spontaneous and exothermic at 25-45 degrees C. The SEM showed porous morphology which greatly helps in the biosorption of heavy metals. The Fourier transform infrared spectrophotometer (FTIR) and X-rays Photon Spectroscopy (XPS) data spectra indicated that the functional groups predominately involved in the biosorption were C-N, -OH, COO-, -CH, C=C, C=S and C-. These results shows that immobilized algal cells in alginate beads could potentially enhance the biosorption of considered metal ions than freely suspended cells. Furthermore, the biosorbent has significantly removed heavy metals from industrial wastewater at the optimized condition. PMID- 29345547 TI - Are Current Physical Match Performance Metrics in Elite Soccer Fit for Purpose or Is the Adoption of an Integrated Approach Needed? AB - Time-motion analysis is a valuable data-collection technique used to quantify the physical match performance of elite soccer players. For over 40 years, researchers have adopted a "traditional" approach when evaluating match demands by simply reporting the distance covered or time spent along a motion continuum of walking through to sprinting. This methodology quantifies physical metrics in isolation without integrating other factors, and this ultimately leads to a 1 dimensional insight into match performance. Thus, this commentary proposes a novel "integrated" approach that focuses on a sensitive physical metric such as high-intensity running but contextualizes this in relation to key tactical activities for each position and collectively for the team. In the example presented, the integrated model clearly unveils the unique high-intensity profile that exists due to distinct tactical roles, rather than 1-dimensional "blind" distances produced by traditional models. Intuitively, this innovative concept may aid coaches' understanding of the physical performance in relation to the tactical roles and instructions given to the players. In addition, it will enable practitioners to effectively translate match metrics into training and testing protocols. This innovative model may well aid advances in other team sports that incorporate similar intermittent movements with tactical purpose. Evidence of the merits and application of this new concept is needed before the scientific community accepts this model as it may well add complexity to an area that conceivably needs simplicity. PMID- 29345548 TI - ABI: The goal line is in sight. PMID- 29345549 TI - Veterinary Medical Students' Motivations for Exercise. AB - The Centers for Disease Control (CDC) declares exercise to be one of the most important activities one can do to improve health. The benefits of exercise are well documented and include both physiologic and psychological health. Given the current landscape of wellness issues in veterinary medical education, it is necessary that students engage in exercise activities to manage stress and increase overall health. Therefore, to develop targeted interventions with the greatest likelihood for success, it is first necessary to understand what motivates veterinary medical students to exercise given their unique situational and environmental factors. This study is the first to explore this issue systematically in veterinary medical education, thus it is the authors' hope that the findings from this research will help identify exercise-related wellness interventions that could be implemented in veterinary medical schools. PMID- 29345550 TI - An Anatomy Pre-Course Predicts Student Performance in a Professional Veterinary Anatomy Curriculum. AB - Little to no correlation has been identified between previous related undergraduate coursework or outcomes on standardized tests and performance in a veterinary curriculum, including anatomy coursework. Therefore, a relatively simplistic method to predict student performance before entrance would be advantageous to many. The purpose of this study was to evaluate whether there is a correlation between performance in a veterinary anatomy pre-course and subsequent performance within a professional anatomy curriculum. Incoming first year veterinary students at the Louisiana State University School of Veterinary Medicine were asked to participate in a free weeklong pre-course, before the start of the semester. The pre-course covered the musculoskeletal anatomy of the canine thoracic limb using dissection-based methods. Student performance, as evaluated by test grades in the pre-course, did indeed correlate with test grades in professional veterinary anatomy courses. A significant and positive correlation was identified between pre-course final exam performance and performance on examinations in each of 3 professional anatomy courses. Qualitative analyses of student comments pertaining to their experience within the pre-course indicated differences in the perceived benefits of the pre-course between high-, middle-, and low-performing students. These varied perceptions may provide predictive feedback as well as guidance for supporting lower performing students. Together, these results indicate that performance in a weeklong pre course covering only a small portion of canine anatomy is a strong predictor of performance within a professional anatomy curriculum. In addition, the pre-course differentially affected student perceptions of their learning experience. PMID- 29345551 TI - Quantifying Novice and Expert Differences in Visual Diagnostic Reasoning in Veterinary Pathology Using Eye-Tracking Technology. AB - Visual diagnostic reasoning is the cognitive process by which pathologists reach a diagnosis based on visual stimuli (cytologic, histopathologic, or gross imagery). Currently, there is little to no literature examining visual reasoning in veterinary pathology. The objective of the study was to use eye tracking to establish baseline quantitative and qualitative differences between the visual reasoning processes of novice and expert veterinary pathologists viewing cytology specimens. Novice and expert participants were each shown 10 cytology images and asked to formulate a diagnosis while wearing eye-tracking equipment (10 slides) and while concurrently verbalizing their thought processes using the think-aloud protocol (5 slides). Compared to novices, experts demonstrated significantly higher diagnostic accuracy (p <.017), shorter time to diagnosis (p <.017), and a higher percentage of time spent viewing areas of diagnostic interest (p <.017). Experts elicited more key diagnostic features in the think-aloud protocol and had more efficient patterns of eye movement. These findings suggest that experts' fast time to diagnosis, efficient eye-movement patterns, and preference for viewing areas of interest supports system 1 (pattern-recognition) reasoning and script-inductive knowledge structures with system 2 (analytic) reasoning to verify their diagnosis. PMID- 29345552 TI - The Effect of Preceding Race Efforts on Pacing and Short-Track Speed Skating Performance. AB - PURPOSE: To examine whether preceding high-intensity race efforts in a competitive weekend affect pacing behavior and performance in elite short-track speed skaters. METHODS: Finishing and intermediate lap times were gathered from 500-, 1000-, and 1500-m short-track speed skating world cups during the seasons 2011-2016. The effect of preceding races on pacing behavior and performance was explored using 2 studies. Study I: The effect of competing in extra races due to the repechage (Rep) system, leading to an increased number of high-intensity race efforts prior to the subsequent main tournament race, was explored (500-m, n = 32; 1000-m, n = 34; and 1500-m, n = 47). Study II: The performance of skaters over the tournament days was evaluated (500-m, n = 129; 1000-m, n = 54; and 1500 m, n = 114). For both analytic approaches, a 2-way repeated-measures analysis of variance was used to assess differences in pacing and performance within skaters over the races. RESULTS: An additional number of preceding high-intensity race efforts due to the Rep system reduced the qualification percentage in the first main tournament race for the next stage of competition in all events (500-m, direct qualification = 57.3%, Rep = 25.0%; 1000-m, direct = 44.2%, Rep = 28.3%; and 1500-m, direct = 27.1%, Rep = 18.2%) and led to a decreased pace in the initial 2 laps of the 500-m event. By contrast, tournament day (Saturday vs Sunday) only affected the pacing behavior of female skaters during the 1500-m event. CONCLUSION: High-intensity race efforts earlier in the day affected pacing and performance of elite skaters, whereas the effect of high-intensity race efforts from the previous day seemed to be only marginal. PMID- 29345553 TI - Quality and Variability of Patient Directions in Electronic Prescriptions in the Ambulatory Care Setting. AB - BACKGROUND: The prescriber's directions to the patient (Sig) are one of the most quality-sensitive components of a prescription order. Owing to their free-text format, the Sig data that are transmitted in electronic prescriptions (e prescriptions) have the potential to produce interpretation challenges at receiving pharmacies that may threaten patient safety and also negatively affect medication labeling and patient counseling. Ensuring that all data transmitted in the e-prescription are complete and unambiguous is essential for minimizing disruptions in workflow at prescribers' offices and receiving pharmacies and optimizing the safety and effectiveness of patient care. OBJECTIVES: To (a) assess the quality and variability of free-text Sig strings in ambulatory e prescriptions and (b) propose best-practice recommendations to improve the use of this quality-sensitive field. METHODS: A retrospective qualitative analysis was performed on a nationally representative sample of 25,000 e-prescriptions issued by 22,152 community-based prescribers across the United States using 501 electronic health records (EHRs) or e-prescribing software applications. The content of Sig text strings in e-prescriptions was classified according to a Sig classification scheme developed with guidance from an expert advisory panel. The Sig text strings were also analyzed for quality-related events (QREs). For purposes of this analysis, QREs were defined as Sig text content that could impair accurate and unambiguous interpretation by staff at receiving pharmacies. RESULTS: A total of 3,797 unique Sig concepts were identified in the 25,000 Sig text strings analyzed; more than 50% of all Sigs could be categorized into 25 unique Sig concepts. Even Sig strings that expressed apparently simple and straightforward concepts displayed substantial variability; for example, the sample contained 832 permutations of words and phrases used to convey the Sig concept of "Take 1 tablet by mouth once daily." Approximately 10% of Sigs contained QREs that could pose patient safety risks or workflow disruptions that could necessitate pharmacist callbacks to prescribers for clarification or other manual interventions. CONCLUSIONS: The quality of free-text patient directions in e-prescriptions can vary dramatically. However, more than half of all patient directions sent in the ambulatory setting can be categorized into only 25 Sig concepts. This suggests an immediate, practical opportunity to improve patient safety and workflow efficiency for both prescribers and pharmacies. Recommendations include implementing enhancements to Sig creation tools in e prescribing and EHR software applications, adoption of the Structured and Codified Sig format supported by the current national e-prescribing standard, and improved usability testing and end-user training for generating complete and unambiguous patient directions. Such quality improvements are essential for optimizing the safety and effectiveness of patient care as well as for minimizing workflow disruptions to both prescribers and pharmacies. DISCLOSURES: This research received no specific grant from any funding agency in the public, commercial, or not-for-profit sectors. Yang, Ward-Charlerie, Dhavle, and Green are employed by Surescripts. Rupp reported receiving consulting fees from Surescripts during the conduct of this study. No other disclosures were reported. The content in this article is solely the responsibility of the authors and does not necessarily represent the official views of Surescripts and Midwestern University or any of the affiliated institutions of the authors. Study concept and design were contributed by all the authors. Yang and Ward-Charlerie collected the data, and data interpretion was performed by Yang, Ward-Charlerie and Dhavle. The manuscript was primarily written by Yang, along with Dhavle and Green, and revised by Yang, Dhavle, Rupp, and Green. PMID- 29345554 TI - Letter to the editor concerning the article "Relationship between school rhythm and physical activity in adolescents: the HELENA study" by Vanhelst et al. (2017). AB - Recently Vanhelst et al. published a study on the relationship between school rhythm and physical activity patterns in European adolescents in the Journal of Sports Sciences. With this Letter to the Editor we would like to comment on the practical implementation and further perspectives of the study. PMID- 29345555 TI - The Preparation Period in Basketball: Training Load and Neuromuscular Adaptations. AB - PURPOSE: To investigate the effect of the preparation period on neuromuscular characteristics of 12 professional (PRO) and 16 semiprofessional (SEMIPRO) basketball players and relationships between training-load indices and changes in neuromuscular physical performance. METHODS: Before and after the preparation period, players underwent a countermovement jump (CMJ) test followed by a repeated change-of-direction (COD) test consisting of 4 levels with increasing intensities. The peripheral neuromuscular functions of the knee extensors (peak torque [PT]) were measured using electrical stimulations after each level (PT1, PT2, PT3, and PT4). Furthermore, PT Max (the highest value of PT) and PT Dec (PT decrement from PT Max to PT4) were calculated. RESULTS: Trivial to small (effect size [ES] = -0.17 to 0.46) improvements were found in CMJ variables, regardless of competitive level. After the preparation period, peripheral fatigue induced by a COD test was similarly reduced in both PRO (PT Dec: from 27.8% [21.3%] to 11.4% [13.7%]; ES = -0.71; 90% confidence interval [CI], +/-0.30) and SEMIPRO (PT Dec: from 26.1% [21.9%] to 10.2% [8.2%]; ES = -0.69; 90% CI, +/-0.32). Moderate to large relationships were found between session rating of perceived exertion training load and changes in peak power output (PPO) measured during the CMJs (rs [90% confidence interval]: PPOabs, -.46 [+/-.26]; PPOrel, -.53 [+/-.23]) and in some PTs measured during the COD test (PT1, -.45 [+/-.26]; PT2, -.44 [+/-.26]; PT3, -.40 [+/-.27]; and PT Max, -.38 [+/-.28]). CONCLUSIONS: The preparation period induced minimal changes in the CMJ, while the ability to sustain repeated COD efforts was improved. Reaching high session rating of perceived exertion training loads might partially and negatively affect the ability to produce strength and power. PMID- 29345556 TI - Positional Differences in Elite Basketball: Selecting Appropriate Training-Load Measures. AB - PURPOSE: To study the structure of interrelationships among external-training load measures and how these vary among different positions in elite basketball. METHODS: Eight external variables of jumping (JUMP), acceleration (ACC), deceleration (DEC), and change of direction (COD) and 2 internal-load variables (rating of perceived exertion [RPE] and session RPE) were collected from 13 professional players with 300 session records. Three playing positions were considered: guards (n = 4), forwards (n = 4), and centers (n = 5). High and total external variables (hJUMP and tJUMP, hACC and tACC, hDEC and tDEC, and hCOD and tCOD) were used for the principal-component analysis. Extraction criteria were set at an eigenvalue of greater than 1. Varimax rotation mode was used to extract multiple principal components. RESULTS: The analysis showed that all positions had 2 or 3 principal components (explaining almost all of the variance), but the configuration of each factor was different: tACC, tDEC, tCOD, and hJUMP for centers; hACC, tACC, tCOD, and hJUMP for guards; and tACC, hDEC, tDEC, hCOD, and tCOD for forwards are specifically demanded in training sessions, and therefore these variables must be prioritized in load monitoring. Furthermore, for all playing positions, RPE and session RPE have high correlation with the total amount of ACC, DEC, and COD. This would suggest that although players perform the same training tasks, the demands of each position can vary. CONCLUSION: A particular combination of external-load measures is required to describe the training load of each playing position, especially to better understand internal responses among players. PMID- 29345557 TI - Co-registration of cone beam CT and preoperative MRI for improved accuracy of electrode localization following cochlear implantation. AB - OBJECTIVES: To investigate the clinical usefulness and practicality of co registration of Cone Beam CT (CBCT) with preoperative Magnetic Resonance Imaging (MRI) for intracochlear localization of electrodes after cochlear implantation. METHODS: Images of 20 adult patients who underwent CBCT after implantation were co-registered with preoperative MRI scans. Time taken for co-registration was recorded. The images were analysed by clinicians of varying levels of expertise to determine electrode position and ease of interpretation. RESULTS: After a short learning curve, the average co-registration time was 10.78 minutes (StdDev 2.37). All clinicians found the co-registered images easier to interpret than CBCT alone. The mean concordance of CBCT vs. co-registered image analysis between consultant otologists was 60% (17-100%) and 86% (60-100%), respectively. The sensitivity and specificity for CBCT to identify Scala Vestibuli insertion or translocation was 100 and 75%, respectively. The negative predictive value was 100%. DISCUSSION: CBCT should be performed following adult cochlear implantation for audit and quality control of surgical technique. If SV insertion or translocation is suspected, co-registration with preoperative MRI should be performed to enable easier analysis. There will be a learning curve for this process in terms of both the co-registration and the interpretation of images by clinicians. PMID- 29345558 TI - Activation of NADPH Oxidase by beta-Glucan from Phellinus baumii (Agaricomycetes) in RAW 264.7 Cells. AB - Production of oxygen-derived free radicals in phagocytes is important in preventing bacterial and fungal infections. Among free radicals, superoxide anions are a typical reactive oxygen species secreted by macrophages and neutrophils. NADPH oxidase (NOX) is a key producer of superoxide anions in these cells. beta-glucans from mushrooms modulate the immune system by binding with the dectin-1 receptor on macrophages. Dectin-1 functions as a pattern recognition receptor that recognizes the pathogen-associated molecular pattern of beta glucans. During dectin-1 signaling, NOX functions in the activated macrophages to produce ROS, which are critical in antimicrobial host defense. In this study, NOX activation was measured using a lucigenin chemiluminescence assay in RAW 264.7 murine macrophages treated for 1 hour with a beta-glucan fraction from Phellinus baumii (BGF; 10, 100, 500, and 1000 MUg/mL) in the absence or presence of phorbol 12-myristate 13-acetate (PMA) or lipopolysaccharide (LPS). NOX was activated at BGF concentrations exceeding 10 MUg/mL. BGF in the presence of PMA or LPS activated the enzyme more than treatment with PMA or LPS alone. In the presence of the NOX inhibitor diphenyleneiodonium, BGF still activated NOX. When macrophages were treated with BGF and Staphylococcus aureus, bacterial viability was reduced in a concentration-dependent manner, possibly as a result of increased phagocytosis and oxygen radical production by the activated NOX. These results demonstrate that BGF is a potent stimulator of NOX in macrophages and augments macrophage-mediated phagocytosis and NOX activity. PMID- 29345559 TI - Antioxidant and Genotoxic Properties of Hispidin Isolated from the Velvet-Top Mushroom, Phaeolus schweinitzii (Agaricomycetes). AB - Antioxidant and genotoxic properties of hispidin isolated from the Phaeolus schweinitzii mushroom were evaluated with various assays. Hispidin demonstrated strong free radical scavenging, oxygen radical absorbance capacity, and ferric reducing antioxidant power; in all applied assays, hispidin exhibited antioxidant capacity similar to or higher than that of the reference antioxidant Trolox. Genotoxic activity of hispidin was assessed using different end points: chromosome aberrations, micronuclei, sister chromatid exchanges, and primary DNA damage (detected by the comet assay) in human lymphocytes in vitro, and gene mutations in the Salmonella/microsome test. Hispidin did not increase the frequency of chromosome aberrations, micronuclei, or primary DNA damage in human lymphocytes in vitro and did not produce reverse mutation in bacterial cells. However, we identified in human lymphocytes a statistically significant dose dependent increase in sister chromatid exchange frequency and a decrease in replication index and nuclear division index values. PMID- 29345560 TI - Shiitake Culinary-Medicinal Mushroom, Lentinus edodes (Agaricomycetes): A Species with Antioxidant, Immunomodulatory, and Hepatoprotective Activities in Hypercholesterolemic Rats. AB - Lentinus edodes is a culinary-medicinal mushroom that has an established history of use in Asian therapies. The mushroom offers well-documented beneficial health effects such as antihypercholesterolemic, antitumor, and antibacterial activities. In this study, dried powder of L. edodes fruiting bodies was used to evaluate immunomodulatory, hepatoprotective, and antioxidant effects in hypercholesterolemic rats. Albino rats (n = 24) were divided into 3 groups: the control (CON) group, the hypercholesterolemia-only group (HCG), and the L. edodes group (LEG). Hypercholesterolemia was induced in rats in the HCG and LEG by feeding cholesterol and cholic acid in a chow maintenance diet (CMD) for 24 days. The CON group was fed the CMD throughout the experiment. The HCG continued on the high-cholesterol diet without any L. edodes supplement. The LEG was fed the high cholesterol diet supplemented with L. edodes for an additional 42 days. Various biological health biomarkers, such as total antioxidant capacity, total oxidant status, arylesterase, paraoxonase activity, and liver enzymes in serum were studied to evaluate antioxidant and hepatoprotective responses. Cell-mediated immunity was evaluated in each group through a delayed type of hypersensitivity reaction. The total oxidant status decreased significantly (P <= 0.05) after administration of L. edodes in the diet. The cell-mediated immune response significantly increased (P <= 0.05) in the LEG. The significant decrease in liver enzymes supports the hepatoprotective effect of L. edodes. In conclusion, the results show the immunomodulatory, hepatoprotective, and antioxidant activities of L. edodes supplementation in hypercholesterolemic rats. PMID- 29345561 TI - Characterization of the Effects of the Shiitake Culinary-Medicinal Mushroom, Lentinus edodes (Agaricomycetes), on Severe Gestational Diabetes Mellitus in Rats. AB - This study evaluated the protective effect of Lentinus edodes in rats with streptozotocin-induced gestational diabetes mellitus (STZ-GDM) when administered orally. The rats received from the 1st to the 19th day of gestation daily doses of 100 or 200 mg/kg of lyophilized and reconstituted L. edodes; the animals in the saline control group and diabetic control group received a saline solution (DS). Gestational diabetes mellitus was induced by streptozotocin (80 mg/kg, administered intraperitoneally) on the fourth day of pregnancy; blood glucose > 180 mg/dL was considered to indicate STZ-GDM. L. edodes reduced catalase in plasma. We also observed reduced glucose in plasma, urea, triglycerides, and aspartate aminotransferase. There was a decrease in preimplantation loss when compared with the DS group. The doses of L. edodes used here had a protective effect on the preimplantation parameters in STZGDM. However, the mushroom was not able to reverse the deleterious effects caused by streptozotocin throughout the evolution of pregnancy. PMID- 29345562 TI - Ethanolic Extract of the Golden Oyster Mushroom, Pleurotus citrinopileatus (Agaricomycetes), Alleviates Metabolic Syndrome in Diet-Induced Obese Mice. AB - Pleurotus citrinopileatus is an edible medicinal mushroom rich in biomolecules and thus has a high potential for use in formulating pharmaceutical and nutraceutical products. To test its effect on body weight and glucose control, we generated diet-induced obese (DIO) C57BL/6J male mice by feeding the mice a high fat diet (60% fat) for 8 weeks and treating them with an ethanolic P. citrinopileatus extract (PCE) at either 200 or 500 mg/kg body weight for 12 additional weeks. The results showed that PCE significantly inhibited high-fat diet-induced weight gain, fat accumulation, and glucose intolerance in the DIO mice. Moreover, the PCE had a beneficial effect on liver and kidney function. On the basis of these results, we conclude that PCE is effective in the treatment of metabolic syndrome and thus could be a good candidate for use in future pharmaceutical or nutraceutical applications. PMID- 29345563 TI - Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (Agaricomycetes), as a Cardioprotectant in an Oxygen-Deficient Environment. AB - Imbalanced oxygen availability is detrimental to normal cell function. Oxygen sensitive cells such as cardiomyoblasts experience severe irreversible pathophysiological damage under conditions of reduced oxygen availability, such as hypoxia. A number of natural therapeutic agents have been explored for their potential cytoprotective effects, of which medicinal mushrooms are an important source. Ganoderma lucidum, commonly known as lingzhi, is one such mushroom that has been elaborately studied for its potential pharmacological properties. In this study, aqueous and alcoholic extracts of a natural Himalayan variety of G. lucidum were evaluated for their efficiency as remedial agents in treating hypoxic injury to H9c2 cardiomyoblasts. The alcoholic extract of G. lucidum effectively restored cellular viability at a concentration of 600 MUg/mL and aided in maintaining cellular redox balance under hypoxia. Substantial reduction in caspase-3 and -7 activation was observed with fluorescent-activated cell sorting. Alcoholic extract of G. lucidum minimized oxidative stress as indicated by measuring reactive oxygen species, lipid peroxidation, and reduced glutathione to-oxidized glutathione ratio, and also by determining changes in hypoxia inducible factor 1alpha and associated genes. To ascertain these positive outcomes of administration of G. lucidum extracts, certain phytoconstituents (nucleobases and flavonoids) were identified using high-performance thin-layer chromatography; antioxidant potential was also evaluated. Results indicated that both extracts contained notable quantities of nucleobases and flavonoids. The extracts also effected high free radical scavenging activities. PMID- 29345564 TI - Profiles of Little-Known Medicinal Polypores: Earliella scabrosa (Agaricomycetes). AB - The purpose of this study was to comprehensively characterize a little-known polypore that has recently been found to possess anticancer activity and thus can also be used in targeted cancer therapy. Earliella scabrosa is a polypore with pantropical distribution and can be found in rainforests in both the Eastern and Western Hemispheres. Some reports have described its antioxidant properties and free radical scavenging ability. Moreover, isocoumarin, which has been successfully used in targeted cancer therapy, was found in extracts of this fungus. We recommend further research of E. scabrosa so that more details of its health benefits could be used in mycotherapy. PMID- 29345565 TI - Identification of Reference Genes and Analysis of Heat Shock Protein Gene Expression in Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum, after Exposure to Heat Stress. AB - Ganoderma lucidum has been considered an emerging model species for studying how environmental factors regulate the growth, development, and secondary metabolism of Basidiomycetes. Heat stress, which is one of the most important environmental abiotic stresses, seriously affects the growth, development, and yield of microorganisms. Understanding the response to heat stress has gradually become a hotspot in microorganism research. But suitable reference genes for expression analysis under heat stress have not been reported in G. lucidum. In this study, we systematically identified 11 candidate reference genes that were measured using reverse transcriptase quantitative polymerase chain reaction, and the gene expression stability was analyzed under heat stress conditions using geNorm and NormFinder. The results show that 5 reference genes-CYP and TIF, followed by UCE2, ACTIN, and UBQ1-are the most stable genes under our experimental conditions. Moreover, the relative expression levels of 3 heat stress response genes (hsp17.4, hsp70, and hsp90) were analyzed under heat stress conditions with different normalization strategies. The results show that use of a gene with unstable expression (SAND) as the reference gene leads to biased data and misinterpretations of the target gene expression level under heat stress. PMID- 29345566 TI - Productivity, Physicochemical Changes, and Antioxidant Activity of Shiitake Culinary-Medicinal Mushroom Lentinus edodes (Agaricomycetes) Cultivated on Lignocellulosic Residues. AB - The effects of substrate and strain on productivity, physicochemical characteristics, and compounds with antioxidant activity were evaluated in basidiomes of the shiitake mushroom, Lentinus edodes. Strains IE-245 and IE-256 and the substrates oak wood shavings (OW), sorghum stubble (SS), and sugar cane bagasse (SC) were used. Productivity was evaluated by measuring biological efficiency (BE), production rate (PR), and yield. Total sugars, total soluble solids, pH, titratable acidity, color parameters, total phenolics, flavonoids, ascorbic acid, and antioxidant activity of the basidiomes were measured. BE, PR and yield were higher with the combination IE-256/SS, at 103.71%, 1.32%, and 34.57%, respectively. The largest amount of total sugars (17.61 mg glucose . g-1 dry weight) was found with combination IE-256/SS. Variation was observed in basidiome color; the lowest luminosity (L*) value (darkest color) was found in the IE-256 strain on the OW substrate (L* = 30.45), whereas that of the IE-245 strain on the SC substrate was the lightest in color (L* = 57.00). The largest amounts of total phenolics were recorded in the IE-256 strain on the OW (6.50 mg gallic acid equivalents [GAE] . g-1 dry weight) and the SS substrates (5.85 mg GAE . g-1 dry weight). The best antioxidant activity was obtained with IE-256 0.80, 0.65, and 0.59 MUmol Trolox equivalents . g dry weight-1-on the OW, SC, and SS substrates, respectively. Based on the values of BE, PR, and yield, IE-256/SS was the most productive. Substrate and strain, and their interactions, influenced the physicochemical characteristics of the basidiomes and the amounts of compounds with antioxidant activity they contained. PMID- 29345567 TI - Proteomic Analysis of Vernalization Responsive Proteins in Winter Wheat Jing841. AB - BACKGROUND: Vernalization is one of the pivotal ways for plants to flower. The twodimensional gel electrophoresis (2-DE) and matrix-assisted laser desorption/ionization time-offlight/ time-of-flight mass spectrometry (MALDI TOF/TOF MS) were applied to analyze the changes in protein expression profiles in responding to vernalization in leaves of wheat seedling before (0d) and after (30d) of vernalization. OBJECTIVE: The main objective of this study was to analyze the vernalization-responsive proteins in winter wheat after vernalization. METHODS: Winter wheat seedling leaf proteins were extracted by phenol extraction coupled with ammonium acetate in methanol. 2-DE was conducted according to procedures described in the manual given by the GE manufacture. The selected protein spots were identified by MALDITOF/ TOF MS. Gene ontology (GO) classification was applied to classify the functions of the differentially expressed proteins. Pathway enrichment analysis identified significantly enriched metabolic pathways or signal transduction pathways relative to the whole proteins background. RESULTS: The results of 2-DE and MALDI-TOF/TOF MS showed that among the 65 differentially expressed proteins that were successfully identified under vernalization, 30 were up-regulated whereas 35 were down-regulated after vernalization, respectively. These vernalization-responsive proteins were found to play roles in carbohydrate metabolism, protein metabolism, photosynthesis, defense and stress-resistance and may therefore participate in many biological processes in responding to vernalization. The enhanced accumulation of proteins after vernalization, such as thiamine thiazole synthase, late embryogenesis abundant protein, and glutathione-S-transferase, probably play vital roles in the mechanisms underlying vernalization response in wheat. CONCLUSION: Our results indicated these vernalization-responsive proteins were found to be involved in protein metabolism, carbohydrate metabolism, photosynthesis, and stress resistance/ defense. The responses of plants to low temperature were very complex, involving in a wide range of cellular pathways for signal transduction, gene regulation, protein modifications, and metabolic regulation. Studying on wheat proteomic profiles in response to vernalization can improve our understanding the molecular mechanisms underlying vernalization in cereals. The results obtained in this study have provided a novel insight into the mechanisms underlying vernalization in cereal crops. PMID- 29345568 TI - Surface-bioengineered Gold Nanoparticles for Biomedical Applications. AB - The conjugation of gold nanoparticles (AuNPs) with biomolecules could create many outstanding biofunctions for the surface-functionalized nanoparticles and extend their biomedical applications. In this review, we summarize the recent advances in the surface bioengineering of AuNPs with biomolecules, such as DNA, proteins, peptides, and biopolymers, in which the details on the structure, functions, and properties of surface- bioengineered AuNPs are discussed. In addition, the surface-biofunctionalization of AuNPs for biomedical applications like biosensing, bioimaging, drug delivery, and tissue engineering are introduced. It is expected that this work will be very helpful for readers to understand the surface functionalization and engineering techniques for various metallic nanoparticles and design novel biomaterials for biomedical applications. PMID- 29345569 TI - A Complex Scenario and Underestimated Challenge: The Tumor Microenvironment, ER Stress, and Cancer Treatment. AB - The paradoxical role of ER stress in malignant diseases is only just being unraveled and remains incompletely understood. A particular challenge is the complex interplay between spaciotemporal and locoregional microenvironmental constraints in solid tumors and stress responses upon treatment; thus, the potential for new combinatorial therapeutic options to foster the coincidence of ER stress-related deadly events is likely to be underestimated. Without claiming this review to be complete, we present a comprehensive overview of the signaling mechanisms associated with the unfolded protein response (UPR) and the molecular link to cell survival and death mechanisms. We (i) delineate the mechanistic scenario and outcome of the UPR; (ii) discuss the role of ER stress in cancer development and progression; (iii) highlight the impact of various environmental conditions and stress stimuli, such as nutrient limitation and tumor hypoxia, in this context; and (iv) attempt to shed some light on the putative link between DNA damage, irradiation, and ER stress to emphasize the potential of therapeutic targeting of ER stress pathways for combined cancer treatments. PMID- 29345570 TI - The role of AMPK/mTOR modulators in therapy of acute myeloid leukemia. AB - Differentiation therapy of acute promyelocytic leukemia with all-trans retinoic acid represents the most successful pharmacological therapy of acute myeloid leukemia (AML). Numerous studies demonstrate that drugs that inhibit mechanistic target of rapamycin (mTOR) and activate AMP-kinase (AMPK) have beneficial effects in promoting differentiation and blocking proliferation of AML. Most of these drugs are already in use for other purposes; rapalogs as immunosuppressants, biguanides as oral antidiabetics, and 5-amino-4-imidazolecarboxamide ribonucleoside (AICAr, acadesine) as an exercise mimetic. Although most of these pharmacological modulators have been widely used for decades, their mechanism of action is only partially understood. In this review, we summarize the role of AMPK and mTOR in hematological malignancies and discuss the possible role of pharmacological modulators in proliferation and differentiation of leukemia cells. PMID- 29345571 TI - Targeting Cytosolic Phospholipase A2alpha for Novel Anti-Inflammatory Agents. AB - Group IV cytosolic phospholipase A2 (cPLA2alpha) plays a critical role in inflammatory processes. It produces arachidonic acid which is the main source of the pro-inflammatory eicosanoids mediators that are important in innate immune system. In some cases, these proinflammatory mediators cause damages to the host tissues and therefore promote autoimmune diseases. Consequently, development of potent inhibitors against cPLA2alpha could improve the therapy of inflammatory diseases. In the last two decades, intense efforts have been done to find potent cPLA2alpha inhibitors. Several scaffolds have been developed with the use of structure activity relationship (SAR) studies, and potent inhibitors have been obtained. The poor absorption of these compounds from intestine was the main challenge for clinical application. This review illustrates the search for cPLA2alpha inhibitors, their SAR studies and biological effects. PMID- 29345572 TI - Breaking the DNA damage response via serine/threonine kinase inhibitors to improve cancer treatment. AB - Multiple, both endogenous and exogenous, sources may induce DNA damage and DNA replication stress. Cells have developed DNA damage response (DDR) signaling pathways to maintain genomic stability and effectively detect and repair DNA lesions. Serine/threonine kinases such as Ataxia-telangiectasia mutated (ATM) and Ataxia-telangiectasia and Rad3-Related (ATR) are the major regulators of DDR, since after sensing stalled DNA replication forks, DNA double- or single-strand breaks, may directly phosphorylate and activate their downstream targets, that play a key role in DNA repair, cell cycle arrest and apoptotic cell death. Interestingly, key components of DDR signaling networks may constitute an attractive targets for anti-cancer therapy through two distinct potential approaches: as a chemo- and radiosensitizers to enhance the effectiveness of currently used genotoxic treatment or as a single agents to exploit defects in DDR in cancer cells via synthetic lethal approach. Moreover, the newest data reported that serine/threonine protein kinase R (PKR)-like endoplasmic reticulum kinase (PERK) is also closely associated with cancer development and progression. Thereby, utilization of small-molecule, serine/threonine kinase inhibitors may provide a novel, groundbreaking, anti-cancer treatment strategy. Currently, a range of potent, highly-selective toward ATM, ATR and PERK inhibitors has been discovered, but after foregoing study, additional investigations are necessary for their future clinical use. PMID- 29345573 TI - Precision Medicine: Update on Diagnosis and Therapeutic Strategies of Hepatocellular Carcinoma. AB - Recent advances in multiple omics technologies and the advent of massively parallel sequencing provide technical supports for the implementation of precision medicine. The precision medicine emphasizes that heterogeneous diseases can be well classified into more precise subtypes by the powerful detection methods and integration of clinical features, so that the clinicians should develop more accurate diagnosis and therapeutic strategies for the disease subtype population in an effort to maximize the efficacy and minimize the unnecessary side effects. Oncology is at the forefront of precision medicine, as malignant tumors have significant heterogeneity and are among the leading causes of death nationally and worldwide. The incidence and mortality of Hepatocellular Carcinoma (HCC), a kind of extraordinarily heterogeneous malignancy, have been increasing worldwide, making it a major public health concern. Such heterogeneity affects key signaling pathways, driving phenotypic variation, influences tumor evolution, and poses severe challenges to HCC treatment. The application of precision medicine will have certain impact on HCC diagnosis and treatment strategies. Herein, we summarize the updates and challenges in high-risk population screening, prevention, diagnosis, staging and therapy of HCC under the concept of precision medicine. PMID- 29345574 TI - Role of CD73 in Disease: Promising Prognostic Indicator and Therapeutic Target. AB - CD73, also known as ecto-5'-nucleotidase (eN, NT5E, EC3.13.5), is the ratelimiting enzyme for adenosine generation and is expressed on multiple cells. Its expression is significantly influenced by hypoxia and inflammatory factors. During inflammation, CD73 protects endothelial barrier function and inhibits leukocyte trafficking. CD73 also promotes M2 macrophages (anti-inflammatory phenotype). In addition, CD73 is expressed on Treg cells and mediates immune suppression through adenosine. CD73 serves as an essential regulator for the immunity and inflammation. Its expression is related to many diseases, such as autoimmune diseases, ischemia-reperfusion injuries, arterial calcifications, and atherosclerosis. CD73 is overexpressed in many cancers. Its expression is positively associated with tumor growth, metastasis, angiogenesis, poor prognosis and resistance to chemotherapy. Thus, CD73 may be used for prognostic indicator and therapeutic target in diseases such as cancers. PMID- 29345575 TI - Recent progress in chemosensors using aldehyde-bearing fluorophores for detection of specific analytes and its bioimaging. AB - In recent years, aldehyde-appended fluorescence probes are paid more and more attention by researchers. The fluorescent biological imaging provided many new applications today, which is often used for cell and tissue imaging in biomedical research. Meanwhile, the nucleophilic mechanism is a very simple and convenient procedure for the preparation of aldehyde-sensing probes. This tutorial review focuses on aldehyde-bearing chemosensors based on nucleophilic addition mechanism with biological applications. PMID- 29345576 TI - Radiotracers for Amyloid Imaging in Neurodegenerative Disease: State-of-the-Art and Novel Concepts. AB - The pathological accumulation of different peptides is the common base of many neurodegenerative processes, such as Alzheimer's disease (AD). AD is characterized by amyloid deposits which may cause alterations in neurotransmission, activation of inflammatory mechanisms, neuronal death and cerebral atrophy. Diagnosis in vivo is challenging as the criteria rely mainly on clinical manifestations, which become evident only in a late stage of the disease. While AD can currently be definitively confirmed by postmortem histopathologic examination, in vivo imaging may improve the clinician's ability to identify AD at the earliest stage. In this regard, the detection of cerebral amyloid plaques with positron emission tomography (PET) is likely to improve diagnosis and allow for a prompt start of an effective therapy. Many PET imaging probes for AD-specific pathological modifications have been developed and proved effective in detecting amyloid deposits in vivo. We here review the current knowledge on PET imaging in the detection of amyloid deposits and their application in the diagnosis of AD. PMID- 29345577 TI - Probiotics and Paraprobiotics in Viral Infection: Clinical Application and Effects on the Innate and Acquired Immune Systems. AB - Recently, the risk of viral infection has dramatically increased owing to changes in human ecology such as global warming and an increased geographical movement of people and goods. However, the efficacy of vaccines and remedies for infectious diseases is limited by the high mutation rates of viruses, especially, RNA viruses. Here, we comprehensively review the effectiveness of several probiotics and paraprobiotics (sterilized probiotics) for the prevention or treatment of virally-induced infectious diseases. We discuss the unique roles of these agents in modulating the cross-talk between commensal bacteria and the mucosal immune system. In addition, we provide an overview of the unique mechanism by which viruses are eliminated through the stimulation of type 1 interferon production by probiotics and paraprobiotics via the activation of dendritic cells. Although further detailed research is necessary in the future, probiotics and/or paraprobiotics are expected to be among the rational adjunctive options for the treatment of various viral diseases. PMID- 29345578 TI - Searching for New Targets and Treatments in the Battle Against Squamous Cell Carcinoma of the Head and Neck, with Specific Focus on Tumours of the Tongue. AB - Squamous cell carcinoma of the head and neck, SCCHN, is a heterogeneous group of tumours not only concerning the site of origin but also regarding aetiology. The 5-year survival for the whole group of SCCHN tumours has not significantly improved over the last 20-25 years. Apart from tumour spread to lymph nodes, N status, gains and losses of specific chromosomes are the only factors shown to be independent prognostic markers for these tumours. Worldwide, an increasing number of people <= 40 years are seen being affected by tongue SCC, the most common tumour within the SCCHN group. Even without any clinical signs of metastasis, up to 30% of all tongue SCC have histologically detectable spread to lymph nodes. In this mini review, field cancerization, tumour microenvironment, the so called EMT (epithelial mesenchymal transition) process and the role of viruses in development of SCCHN are discussed as well as potential new therapeutic targets. For the group of tongue SCC, with the increasing incidence seen in young patients and particularly women, new data with impact on prognosis and treatment are urgently needed. But as long as data from the analyses of several sub sites are presented as valid for the whole group of tumours, this vital point is missed. PMID- 29345579 TI - Genistein as a Potential Anticancer Agent Against Head and Neck Squamous Cell Carcinoma. AB - The use of nutraceuticals as protection drugs against chronic diseases gained a vast success. Many studies found that nutraceuticals may reduce the tumorigenic actions of carcinogens, inhibiting the adhesion and proliferation of tumor cells. Genistein is a natural isoflavone preventing osteoporosis, menopause problems and heart diseases. It is also known in China and Japan for its anticancer properties. The available treatment protocols for Head and neck squamous cell cancer (HNSCC) have led to poor results and new therapies are necessary. In this paper, we will review anticancer therapeutic potential of genistein and in vitro and in vivo studies that suggest its potential role in the treatments of HNSCC. PMID- 29345580 TI - Multi-potent Natural Scaffolds Targeting Amyloid Cascade: In Search of Alzheimer's Disease Therapeutics. AB - Alzheimer's Disease (AD) once considered a rare disorder emerges as a major health concern in recent times. The disease pathogenesis is very complex and yet to be understood completely. However, "Amyloid Cascade" is the central event in disease pathogenesis. Several proteins of the amyloid cascade are currently being considered as potential targets for AD therapeutics discovery. Many potential compounds are in clinical trials, but till now there is no known cure for the disease. Recent years have witnessed remarkable research interest in the search of novel concepts in drug designing for AD. Multi-targeted ligand design is a paradigm shift in conventional drug discovery. In this process rather than designing ligands targeting a single receptor, novel ligands have been designed/ synthesized that can simultaneously target many pathways involved in disease pathogenesis. Here, recent developments in computational drug designing protocols to identify multi-targeted ligand for AD have been discussed. Therapeutic potential of different multi-potent compounds also has been discussed briefly. Prime emphasis has been given to multi-potent ligand from natural resources. Polyphenols are an interesting group of compounds which show efficacy against a wide range of disease and have the property to exhibit multi-potency. Several groups attempted to identify novel multi-potent phytochemicals for AD therapy. Multi-potency of several polyphenols or compounds synthesized using the poly phenolic scaffolds have been briefly discussed here. However, the multi-targeted drug designing for AD is still in early stages, more advancement in drug designing method/algorithm developments is urgently required to discover more efficient compounds for AD therapeutics. PMID- 29345583 TI - Controversies in the Cath Lab: Navigating Contemporary Conundrums Before, During and After Intervention. PMID- 29345581 TI - Premorbid and Illness-related Social Difficulties in Eating Disorders: An Overview of the Literature and Treatment Developments. AB - BACKGROUND: Social difficulties in eating disorders can manifest as predisposing traits and premorbid difficulties, and/or as consequences of the illness. OBJECTIVE: The aim of this paper is to briefly review the evidence of social problems in people with eating disorders and to consider the literature on treatments that target these features. METHOD: A narrative review of the literature was conducted. RESULTS: People with eating disorders often manifest traits, such as shyness, increased tendency to submissiveness and social comparison, and problems with peer relationships before illness onset. Further social difficulties occur as the illness develops, including impaired social cognition and increased threat sensitivity. All relationships with family, peers and therapists are compromised by these effects. Thus, social difficulties are both risk and maintaining factors of eating disorders and are suitable targets for interventions. Several forms of generic treatments (e.g. interpersonal psychotherapy, cognitive analytic therapy, focal psychodynamic therapy) have an interpersonal focus and show some efficacy. Guided self-management based on the cognitive interpersonal model of the illness directed to both individuals and support persons has been found to improve outcomes for all parties. Adjunctive treatments that focus on specific social difficulties, such as cognitive remediation and emotion skills training and cognitive bias modification have been shown to have a promising role. CONCLUSION: More work is needed to establish whether these approaches can improve on the rather disappointing outcomes that are attained by currently used treatments for eating disorders. PMID- 29345582 TI - Is the Impact of Starvation on the Gut Microbiota Specific or Unspecific to Anorexia Nervosa? A Narrative Review Based on a Systematic Literature Search. AB - BACKGROUND: The role of the gut microbiota in Anorexia Nervosa (AN) has long been neglected by researchers, although the fact that the former is known to play an important role in health, disease and weight regulation. Cycles of overweight and underweight due to natural states of starvation and refeeding are normal in many vertebrates in their ecological niches. OBJECTIVE: The aim of this review was to compare the similarities and differences of the gut microbiota in eating disorders with conditions of fasting and refeeding in other vertebrates. METHOD: A systematic literature search was conducted in Pubmed and Web of Science to find all relevant studies examining the gut microbiota in eating disorders and different states of fasting in vertebrates for this narrative review. RESULTS: Gut microbiota appears to differ in AN versus normal-weight individuals. Induced fasting conditions in other vertebrates resulted in heterogeneous effects on gut microbiota with respect to their richness, diversity and community structures. The findings for hibernating animals were generally consistent. A decrease in microbial richness and diversity was observed in the hibernating animal compared to the active animal, and the community structures were linked to these conditions. Some similarities and differences between AN and different states of fasting in other vertebrates were found. CONCLUSION: The complexity of the relationship between fasting and gut microbiota is difficult to interprete. A deeper biological understanding is necessary to identify promising approaches for the modulation of the AN gut microbiota to support established psychotherapies. PMID- 29345584 TI - Mechanical Support in Cardiogenic Shock Complicating Acute Coronary Syndrome: Ready for Prime Time? AB - Cardiogenic Shock (CS) is a major challenge in current cardiology. Over the last decade, cardiogenic shock mortality has decreased somewhat, but it still remains high, particularly when associated with ischaemic heart disease. The challenges are numerous and include prevention, accurate diagnosis, prompt management and effective therapies to support a failing heart and prevent multi-organ failure. Despite improvements in the care of Acute Coronary Syndrome (ACS), it remains the most common cause of CS. In addition to existing medical therapy, mechanical circulatory support has been proposed for the management of ventricular failure. The intra-aortic balloon pump was amongst the first widely used percutaneous mechanical support devices, and more recently, systems providing a higher level of support have been developed. Although the evidence supporting their use is limited, they have the potential to significantly reduce CS-associated mortality. In this narrative review, we summarize the available evidence and discuss the future directions regarding percutaneous mechanical circulatory support in patients with left ventricular dysfunction and CS complicating ACS. PMID- 29345585 TI - Mandatory Reporting of Coronary Artery Calcifications Incidentally Noted on Chest Multi-Detector Computed Tomography: A Multicentre Experience. AB - BACKGROUND: Coronary Artery Calcifications (CACs) are associated with coronary atherosclerosis and Cardiovascular (CV) events. In "non-cardiovascular" settings, CACs can be easily detected on chest Multi-Detector Computed Tomography (MDCT). Their evaluation may help to better stratify CV risk in the general population, especially for primary prevention. AIMS: We retrospectively evaluated the relationship between CAC distribution and CV risk, determined by Framingham Risk Score (FRS), in a cohort of patients who underwent chest MDCT performed for several clinical indications. METHOD: We retrospectively recruited 305 patients (194 men, 111 women; mean age 70.5 years) from 3 different Italian centres. Patients with coronary stent, pacemaker and/or CV devices were excluded from the study. Circumflex Artery (LCX), Left Main Coronary Artery (LMCA), left Anterior Descending artery (LAD) and right coronary artery (RCA) were analysed. RESULTS: From a total population of 305 patients, 119 (39%) had low FRS (<10%), 115 (38%) had intermediate FRS (10-20%), and 71 (23%) had high FRS (>20%). The study identified 842 CACs located in decreasing order as follows: RCA (34.5%), LAD (32.3%), LCX (28%) and LMCA (13%). Statistical two-step analysis subdivided patients into two clusters according to FRS (risk threshold = 12.38%): cluster I (mean 9.34) and cluster II (mean 15.09). A significant association between CAC distribution and cluster II was demonstrated. CACs were mostly detected in patients with intermediate FRS. All patients (100%) with the highest CV risk showed intermediate RCA and LMCA involvement. CONCLUSION: Radiologists can note the distribution of CACs on a chest MDCT and should mandatorily record them in their reports. Depending on CAC presence and location, these findings may have important clinical implications, mostly in asymptomatic patients with intermediate FRS. This information may reclassify a patients' CV risk and improve clinical management. PMID- 29345586 TI - What is the Role of Cangrelor in Patients Undergoing PCI? AB - Dual antiplatelet therapy with aspirin and oral P2Y12-receptor inhibitors prevents ischemic events in patients undergoing Percutaneous Coronary Intervention (PCI). However, oral administration of antiplatelet drugs cause delay of onset of platelet inhibition in P2Y12-inhibitor naive patients. Cangrelor is a novel P2Y12-receptor inhibitor which is administrated intravenously and thus allows immediate antiplatelet inhibition during PCI. Due to its unique pharmacokinetics with fast onset of platelet inhibition and very short plasma half-life it allows effective and controllable periprocedural platelet inhibition. It could reduce short-term ischemic events in large randomized clinical trials. The present article reviews the available evidence and application on cangrelor use in clinical practice. PMID- 29345587 TI - Is there a Role for Oral Triple Therapy in Patients with Acute Coronary Syndromes Without Atrial Fibrillation? AB - BACKGROUND: Acute Coronary Syndrome (ACS) patients, despite treatment with Dual Anti- Platelet Therapy (DAPT), have up to 10% risk of recurrent Major Adverse Cardiac Events (MACE) in the short term. METHODS: Here we review studies using more potent antithrombotic agent combinations to reduce this risk, namely Triple Therapy (TT) with the addition of an oral anticoagulant, PAR-1 antagonist, or cilostazol to DAPT (mainly aspirin and clopidogrel), and discuss the limitations of trials to date. RESULTS: Generally speaking, TT leads to an increase in bleeding. Vorapaxar showed a signal for reducing ischaemic events, but increased intracranial haemorrhage 3-fold in the subacute phase of ACS, although remains an option for secondary prevention beyond the immediate subacute phase, particularly if prasugrel or ticagrelor are not available. Non-Vitamin K Oral Anticoagulants (NOACs) all increased bleeding, with only modest reduction in MACE noted with low dose rivaroxaban. Rivaroxaban can be considered combined with aspirin and clopidogrel in ACS patients at high ischaemic and low bleeding risk, without prior stroke/TIA. The combination of P2Y12 inhibitor and NOAC, without aspirin, looks promising. DAPT may be replaced, not by TT, but by dual therapy comprising a NOAC with a P2Y12 inhibitor. CONCLUSION: More potent antithrombotic regimens increase bleeding and should only be considered on an individual basis, after careful risk stratification. Accurate risk stratification of ACS patients, for both ischaemic and bleeding risk, is essential to allow individualised treatment. PMID- 29345588 TI - The Role of Percutaneous Coronary Intervention in the Treatment of Chronic Total Occlusions: Rationale and Review of the Literature. AB - BACKGROUND: Chronic total occlusion (CTO) of a coronary artery is defined as an occluded segment with no antegrade flow and a known or estimated duration of at least 12 weeks. OBJECTIVE: We considered the current literature describing the indications and clinical outcomes for de-novo CTO- percutaneous coronary intervention (PCI), and discuss the role of CTO-PCI and future directions for this procedure. METHOD: Databases (PubMed, the Cochrane Library, Embase, EBSCO, Web of Science, and CINAHL were searched and relevant studies of CTO-PCI were selected for review. RESULTS: The prevalence of coronary artery CTO's has been reported to be ~ 20% among patients undergoing diagnostic coronary angiography for suspected coronary artery disease. Revascularization of any CTO can be technically challenging and a time-consuming procedure with relatively low success rates and may be associated with a higher incidence of complications, particularly at non-specialized centers. However, with an increase in experience and technological advances, several centers are now reporting success rates above 80% for these lesions. There is marked variability among studies in reporting outcomes for CTO-PCI with some reporting potential mortality benefit, better quality of life and improved cardiac function parameters. Anecdotally, properly selected patients who undergo a successful CTO-PCI most often have profound relief of ischemic symptoms. Intuitively, it makes sense to revascularize an occluded coronary artery with the goal of improving cardiovascular function and patient quality of life. CONCLUSIONS: CTO-PCI is a rapidly expanding specialized procedure in interventional cardiology and is reasonable or indicated if the occluded vessel is responsible for symptoms or in selected patients with silent ischemia in whom there is a large amount of myocardium at risk and PCI is likely to be successful. PMID- 29345589 TI - Neonatal Systemic Thrombosis: An Updated Overview. AB - Thromboembolic disease is a complex disorder with a multifactorial aetiology and a severe outcome. In newborns and children it may be missed or diagnosed late, thus worsening the prognosis. The neonatal disease is different from the disorder affecting older children and adults. However, scant epidemiological data and few randomised clinical trials regarding paediatric patients are available, and treatment recommendations are largely based on adult guidelines. Younger patients then have several decades over which they will suffer from the complications of thrombosis and risk of a new thrombotic episode. Current knowledge about neonatal thromboembolic disease and its prevention is reviewed here along with maternal, foetal, neonatal, pharmacological, environmental, lifestyle and occupational contributing factors. Additional data are urgently needed to improve diagnostic and therapeutic strategies and patient outcomes. PMID- 29345590 TI - What is the Role for Glycoprotein IIb/IIIa Inhibitor Use in the Catheterization Laboratory in the Current Era? AB - BACKGROUND: In the era of dual antiplatelet therapy of aspirin and clopidogrel and systematic stent implantation, Glycoprotein IIb/IIIa Inhibitors (GPI), including abciximab, eptifibatide and tirofiban, proved beneficial in improving early outcome of Percutaneous Coronary Intervention (PCI), especially in higher risk clinical and/or anatomical subsets. This was associated however, with an increased incidence of bleeding complications. OBJECTIVE: To review whether the established results of GPI in PCI are maintained in the contemporary era of more effective antiplatelet agents (i.e., prasugrel, ticagrelor and cangrelor) and safer anticoagulants (i.e., bivalirudin) and interventional techniques (i.e., radial approach). METHODS: The most relevant evidence on the use of GPI in stable coronary artery disease, non-STelevation coronary syndromes and ST-elevation myocardial infarction was reviewed. RESULTS: Overall the relative efficacy and safety of GPI in contemporary PCI is maintained, largely irrespective of the use of more effective antiplatelet agents and/or safer anticoagulants and interventional techniques. However, an increase in the absolute occurrence of major and/or minor bleeding and/or need for blood transfusions is generally observed. CONCLUSION: Because of the persistent benefit of GPI in limiting early ischemic complications, especially in higher risk clinical and/or anatomical subsets, and the associated risk of increased bleeding complications, also in contemporary PCI, these agents should currently be used on a selective rather than routine basis, including bail out administration for peri-procedural thrombotic complications. PMID- 29345591 TI - Should Antithrombotic Treatment Strategies in East Asians Differ from Caucasians? AB - With over 1.5 billion people, East Asians are the most populous race in the world. Health status in this population is an important global issue. In the contemporary trials of antithrombotic treatment, East Asian patients have a lower risk for atherothrombotic diseases (especially, Coronary Artery Disease [CAD]) and a higher risk for bleeding (especially, gastrointestinal bleeding and hemorrhagic stroke). Despite these observations, antithrombotic treatment strategies in East Asian patients are mainly based on the American or European guidelines that are derived from randomized, controlled trials including mostly Caucasians. Despite a low response to clopidogrel, East Asian patients with CAD show a similar or even a lower rate of ischemic event occurrence and higher bleeding risk compared with Caucasian patients. The latter is referred to as the "East Asian Paradox", suggesting a dissimilar therapeutic window for antiplatelet therapy than Caucasians. In addition, different net clinical benefits have been observed between the races with potent P2Y12 inhibitors that may be related to racial differences in pharmacokinetic and pharmacodynamic profiles. Furthermore, there is emerging concern regarding differences between East Asian vs. Western patients in pharmacodynamic and clinical efficacies of anticoagulant agents. We now summarize experimental and clinical evidence of the efficacy and safety of antithrombotic agents in the East Asian population. We suggest the concept of "race-tailored antithrombotic treatment" in CAD patients and/or in patients undergoing percutaneous coronary intervention. PMID- 29345592 TI - Prolonging Ticagrelor Beyond a Year of Acute Coronary Syndrome: Worth or Harmful? AB - Platelet activation plays a central role in triggering and complicating acute coronary syndromes, especially in case of stent thrombosis and myocardial infarction. On top of aspirin, P2Y12- inhibitors are successfully used to treat and prevent these events for a duration of one year after an acute coronary episode or 6 months after drug-eluting stent implantation. However, patients with acute coronary syndromes remain at heightened risk for recurrent ischemic events after the recommended durations of P2Y12-inhibitors and therefore, prolonging treatment is often considered in clinical practice. However, the higher risk for bleeding limits the utility of such approach to a restricted group who is still poorly defined by available measures. This review aims to discuss potential benefits and highlight important pitfalls of prolonged treatment with P2Y12 inhibitors, with a focus on ticagrelor, an attractive reversible P2Y12-inhibitor in patients after myocardial infarction. PMID- 29345593 TI - Antithrombotic Therapy After TAVR. AB - Transvascular Aortic Valve Replacement (TAVR) has emerged as a treatment option in patients with severe aortic stenosis who are inoperable and has recently been evaluated in patients with intermediate surgical risk. The number of procedures is increasing worldwide in parallel with the demographic changes in industrial countries. The risk for cerebral embolism is of main concern and represents a major determinant for prognosis and quality of live after TAVR. The empiric antithrombotic therapy consists of Dual Antiplatelet Therapy (DAPT); However the risk-benefit of this approach is lacking evidence from randomized, placebo controlled trials regarding choice and duration of antithrombotic treatment. Although anticoagulation is generally not recommended in patients with aortic bioprosthesis without atrial fibrillation, there is current uncertainty whether combination of antiplatelet and anticoagulant therapy or anticoagulation alone might represent a more favorable antithrombotic regimen compared to the current empiric standard of DAPT. In addition, so far undetected atrial fibrillation is highly prevalent in the elderly population undergoing TAVR. In particular, the favorable safety profile of Non-Vitamin K Oral Anticoagulants (NOAC) offers an attractive option. A number of trials are currently underway to investigate the benefit of NOAC in patients with and without atrial fibrillation undergoing TAVR. The present article reviews the available evidence concerning stroke risk in TAVR patients and the current and future role of antithrombotic therapy during and after the procedure. PMID- 29345594 TI - Should STEMI Patients Receive Opiate Analgesia? The Morphine Paradox. AB - BACKGROUND: The very significant benefit of P2Y12 receptor inhibitor administration in patients with ST-elevation myocardial infarction (STEMI), in reducing future ischaemic events and stent thrombosis, is undisputed. Morphine analgesia is very frequently co-administered to these patients for pain relief, along with antiplatelet therapy, at the time of presentation, and prior to reperfusion with primary percutaneous coronary intervention. METHODS: Research and online content related to opiates use in STEMI was reviewed. Bibliographies of retrieved studies were searched manually for additional studies and reviews. RESULTS: There is sufficient data from pharmacokinetic and pharmacodynamic studies showing that the co-administration of morphine with oral P2Y12 receptor inhibitor results in delayed antiplatelet effects. However, whether this results in adverse outcomes remains unclear. Data from studies reporting the effect of morphine on clinical outcomes in STEMI are inconsistent, although they tend to be underpowered to show an effect on hard clinical outcomes, but some clearly show a relationship between morphine use and infarct size. Strategies to overcome the potentially significant negative impact of morphine on platelet reactivity in STEMI are discussed. CONCLUSION: Whilst clearly definitive, adequately powered, randomised controlled trials are lacking, we would recommend avoiding the combination of morphine with oral P2Y12 receptor inhibitors and recommend alternative strategies including intravenous platelet inhibitor strategies, in high risk patients. PMID- 29345595 TI - Hospital Management of Severe Hypertriglyceridemia in Children. AB - BACKGROUND: Severe Hypertriglyceridemia (HTG), i.e., plasma triglyceride levels exceeding 1000 mg/dL, is one of the established causes of acute pancreatitis and severe abdominal pain. There are no established pediatric guidelines regarding treatment of children and adolescents with severe HTG. OBJECTIVE: To review the pathophysiology and etiology of severe HTG in the pediatric age group, and to discuss management options. METHOD AND RESULTS: Severe HTG is usually due to deficient or absent Lipoprotein Lipase (LPL) activity, which can be due to primary genetic etiology or secondary causes triggering HTG in those with underlying genetic susceptibility. Hospitalization is indicated for patients with severe HTG who are symptomatic with abdominal pain or pancreatitis, in those with uncontrolled diabetes requiring insulin, or, in those with substantial elevations of plasma TG. Fasting followed by fat free diet until plasma TG declines to <1000mg/dL is essential. Subsequently, stringent fat restriction followed by slowly increasing the dietary fat while maintaining the plasma TG concentration at a targeted level is recommended. Insulin infusions are helpful in patients who have some LPL activity, especially in those with diabetes. Plasmapheresis may be considered in those with severe pancreatitis, shock or multi-organ failure. Medications such as fibrates and omega-3 fatty acids are not effective if LPL activity is absent or when plasma TG is >1800 mg/dL. Medications only have an adjunct role in the management. Low fat diet, lifestyle changes, weight loss, control of secondary causes, and patient education form the mainstay of management once the patient is discharged. PMID- 29345596 TI - The Coronary Artery Risk Detection in Appalachian Communities (CARDIAC) Project: An 18 Year Review. AB - BACKGROUND: The Coronary Artery Risk Detection in Appalachian Communities (CARDIAC) Project is a chronic disease risk factor surveillance, intervention, and research initiative aimed at combating the unacceptably high prevalence of heart disease, diabetes, and other chronic illnesses in West Virginia. OBJECTIVES AND METHODS: The school-based public health project identifies health risk factors in children, educates families, informs primary care physicians, and provides resources to schools to help improve population health, beginning with children. RESULTS AND CONCLUSION: Details regarding methodology, results, and conclusions derived from this unique public health initiative that has screened over 200,000 children are the subject of this 18- year review. PMID- 29345597 TI - Pediatric Markers of Adult Cardiovascular Disease. AB - BACKGROUND: Cardiovascular diseases are the leading cause of death worldwide. While cardiovascular disease typically does not occur until adulthood, the pathogenesis of atherosclerotic cardiovascular disease starts in early childhood. OBJECTIVE: The purpose of this review is to describe the evidence that the process of atherosclerosis begins in childhood, as well as identify the risk factors present in childhood that are associated with the presence of atherosclerotic cardiovascular disease in childhood as well as future cardiovascular events in adulthood. RESULTS AND CONCLUSION: There is much accumulating evidence linking modifiable risk factors that are already present in childhood and that strongly predict future cardiovascular disease. The selective targeting of modifiable risk factors in childhood, including body mass index, holds promise in reducing the burden of adult cardiovascular disease. Future research studies should focus on elucidating the mechanisms which drive the pathogenesis of atherosclerosis in childhood and young adulthood, as well as identifying which interventions are most effective at limiting the progression of atherosclerosis and thus reducing future cardiovascular disease. PMID- 29345598 TI - Dolutegravir-Related Neurological Adverse Events: A Case Report of Successful Management with Therapeutic Drug Monitoring. AB - OBJECTIVE: Dolutegravir (DTG), a highly effective second-generation HIV integrase inhibitor with high genetic barrier to resistance, has shown excellent tolerability and safety profiles in clinical trials. However, some patients may experience neurological or psychiatric adverse effects leading to DTG discontinuation. CASE REPORT: This report describes a case of 29-year-old woman who developed neurological adverse events after starting the DTG-based antiretroviral therapy. Serum DTG concentrations were supratherapeutic which has required a dosing interval adjustment. The findings of this case report suggest that Therapeutic Drug Monitoring might be useful in individuals expressing unusual DTG pharmacokinetics. PMID- 29345599 TI - Crystalline Ethylene Oxide and Propylene Oxide Triblock Copolymer Solid Dispersion Enhance Solubility, Stability and Promoting Time- Controllable Release of Curcumin. AB - AIMS AND BACKGROUND: The design and development of an effective medicine are, however, often faced with a number of challenges. One of them is the close relationship of drug's bioavailability with solubility, dissolution rate and permeability. The use of curcumin's (CUR) therapeutic potential is limited by its poor water solubility and low chemical stability. The purpose was to evaluate the effect of polymer and solid dispersion (SD) preparation techniques to enhance the aqueous solubility, dissolution rate and stability of the CUR. The recent patents on curcumin SD were reported as (i) curcumin with polyvinylpyrrolidone (CN20071 32500 20071214, WO2006022012 and CN20151414227 20150715), (ii) curcumin zinc/polyvinylpyrrolidone (CN20151414227 20150715), (iii) curcumin-poloxamer 188 (CN2008171177 20080605), (iv) curcumin SD prepared by melting method (CN20161626746-20160801). MATERIALS AND METHODS: SD obtained by co-preciptation or microwave fusion and the physical mixture of CUR with Poloxamer-407 (P-407), Hydroxypropylmetylcellulose-K4M (HPMC K4M) and Polyvinylpyrrolidone-K30 (PVP-K30) were prepared at the ratios of 1:2; 1:1 and 2:1. The samples were evaluated by solubility, stability, dissolution rate and characterized by SEM, PXRD, DSC and FTIR. RESULTS: The solubility, stability (pH 7.0) and dissolution rate were significantly greater for SD (CUR:P-407 1:2). The PXRD,SEM and DSC indicated a change in the crystalline state of CUR. The enhancement of solubility was dependent on a combination of factors including the weight ratio, preparation techniques and carrier properties. The drug release data fitted well with the Weibull equation, indicating that the drug release was controlled by diffusion, polymer relaxation and erosion occurring simultaneously. CONCLUSION: Thus, these SDs, specifically CUR:P-407 1:2 w/w, can overcome the barriers of poor bioavailability to reap many beneficial properties. PMID- 29345600 TI - An Open-Source Storage Solution for Cryo-Electron Microscopy Samples. AB - Cryo-electron microscopy (cryo-EM) enables the study of biological structures in situ in great detail and to solve protein structures at Angstrom level resolution. Due to recent advances in instrumentation and data processing, the field of cryo-EM is a rapidly growing. Access to facilities and national centers that house the state-of-the-art microscopes is limited due to the ever-rising demand, resulting in long wait times between sample preparation and data acquisition. To improve sample storage, we have developed a cryo-storage system with an efficient, high storage capacity that enables sample storage in a highly organized manner. This system is simple to use, cost-effective and easily adaptable for any type of grid storage box and dewar and any size cryo-EM laboratory. PMID- 29345601 TI - Vaccine effectiveness and use of collar impregnated with insecticide for reducing incidence of Leishmania infection in dogs in an endemic region for visceral leishmaniasis, in Brazil. AB - Although a national programme for control of visceral leishmaniosis (VL) is being run in Brazil, the disease continues to spread. This programme is essentially based on culling infected dogs from endemic regions. Thus, there is an urgent need to develop other control measures against VL to deter its advance. Here, a subunit vaccine, a recombinant vaccine, an insecticide-impregnated collar and the associations between these measures were evaluated for reducing the incidence of Leishmania infection in dogs. This was through a cohort study conducted in an endemic region of Brazil, considering the incidence and time of total exposure over a period of 1 year. The incidence of VL was estimated by means of serological and molecular diagnostic tests, 180 and 360 days after the application of the control measures. The estimates of the effectiveness (EF) were not significant in any cohort. The EF of the subunit vaccine, the recombinant vaccine and the collar were 26.4%, 32.8% and 57.7% and the upper limit of the 95% confidence interval for EF were 63.7%, 67.9% and 82.5%, respectively. In conclusion, under the conditions of this study, none of the immunogens for VL control was sufficiently effective to protect dogs against infection. On the other hand, use of collars impregnated with insecticide seems to constitute a method with better prognosis, corroborating other studies in this field. PMID- 29345602 TI - The mental health of adolescents and pre-adolescents living with inherited arrhythmia syndromes: a systematic review of the literature. AB - Potentially fatal arrhythmias add to the mental health challenges of adolescence. This systematic review sought to summarise current knowledge regarding the mental health of adolescents and pre-adolescents diagnosed with inherited arrhythmia syndromes. Searches combining psychological problems with inherited cardiac arrhythmia diagnoses identified 16 studies with paediatric (<18 years) inherited arrhythmia patients. All studies were cross-sectional; 8/16 required an implantable cardioverter defibrillator. Methods were quantitative (n=11), qualitative (n=4), or mixed (n=1), with 14-100% of participants having an inherited arrhythmia syndrome. Mean/median age in 13/16 studies was 12-16 years. Patients and parents reported lower quality of life, particularly in relation to physical function, social relationships, restriction of peer activities, bodily pain, and mental and emotional health. Self-perceptions and behaviour were similar to healthy populations. Rates of anxiety and depression (15-33% of these patients) were not increased in these studies where patients were assessed 2+ years after diagnosis. Higher mental health risk occurred among patients who have a diagnosed sibling, those with cardiomyopathy, and those who report decreased quality of life. Mental health research among youth with inherited arrhythmias is extremely limited and of low quality. Data, primarily from patients 2-4 years after diagnosis or treatment with an implantable cardioverter defibrillator, indicate that quality of life may be decreased and 15-33% experience mental health issues. Future research is required to examine the mental health and quality of life of paediatric patients with inherited arrhythmia syndromes, whether or not they have an implantable cardioverter defibrillator, from time of diagnosis. PMID- 29345603 TI - Association between household food security and infant feeding practices in urban informal settlements in Nairobi, Kenya. AB - Studies in urban informal settlements show widespread inappropriate infant and young child feeding (IYCF) practices and high rates of food insecurity. This study assessed the association between household food security and IYCF practices in two urban informal settlements in Nairobi, Kenya. The study adopted a longitudinal design that involved a census sample of 1110 children less than 12 months of age and their mothers aged between 12 and 49 years. A questionnaire was used to collect information on: IYCF practices and household food security. Logistic regression was used to determine the association between food insecurity and IYFC practices. The findings showed high household food insecurity; only 19.5% of the households were food secure based on Household Insecurity Access Score. Infant feeding practices were inappropriate: 76% attained minimum meal frequency; 41% of the children attained a minimum dietary diversity; and 27% attained minimum acceptable diet. With the exception of the minimum meal frequency, infants living in food secure households were significantly more likely to achieve appropriate infant feeding practices than those in food insecure households: minimum meal frequency (adjusted odds ratio (AOR)=1.26, P=0.530); minimum dietary diversity (AOR=1.84, P=0.046) and minimum acceptable diet (AOR=2.35, P=0.008). The study adds to the existing body of knowledge by demonstrating an association between household food security and infant feeding practices in low-income settings. The findings imply that interventions aimed at improving infant feeding practices and ultimately nutritional status need to also focus on improving household food security. PMID- 29345604 TI - A new approach of three-dimensional guidance in paediatric cath lab: segmented and tessellated heart models for cardiovascular interventions in CHD. AB - BACKGROUND: Optimal imaging is essential for catheter-based interventions in CHD. The three-dimensional models in volume-rendering technique currently in use are not standardised. This paper investigates the feasibility and impact of novel three-dimensional guidance with segmented and tessellated three-dimensional heart models in catheterisation of CHD. In addition, a nearly radiation-free two- to three-dimensional registration and a biplane overlay were used.Methods and resultsWe analysed 60 consecutive cases in which segmented tessellated three dimensional heart models were merged with live fluoroscopy images and aligned using the tracheal bifurcation as a fiducial mark. The models were generated from previous MRI or CT by dedicated medical software. We chose the stereo-lithography format, as this promises advantage over volume-rendering-technique models regarding visualisation. Prospects, potential benefits, and accuracy of the two- to three-dimensional registration were rated separately by two paediatric interventionalists on a five-point Likert scale. Fluoroscopy time, radiation dose, and contrast dye consumption were evaluated. Over a 10-month study period, two- to three-dimensional image fusion was applied to 60 out of 354 cases. Of the 60 catheterisations, 73.3% were performed in the context of interventions. The accuracy of two- to three-dimensional registration was sufficient in all cases. Three-dimensional guidance was rated superior to conventional biplane imaging in all 60 cases. We registered significantly smaller amounts of used contrast dye (p<0.01), lower levels of radiation dose (p<0.02), and less fluoroscopy time (p<0.01) during interventions concerning the aortic arch compared with a control group. CONCLUSIONS: Two- to three-dimensional image fusion can be applied successfully in most catheter-based interventions of CHD. Meshes in stereo lithography format are accurate and base for standardised and reproducible three dimensional models. PMID- 29345605 TI - Histopathological evaluation of aortic coarctation after conventional balloon angioplasty in neonates. AB - BACKGROUND: Optimal management strategy for native aortic coarctation in neonates and young infants is still a matter of debate. The surgical procedure, histopathologic research, and clinical outcome in 15 neonates who underwent surgery after successful balloon angioplasty is the basis of this study. METHOD: Between 01 October, 2014 and 01 August, 2017, we enrolled 15 patients with native aortic coarctation for this study. These patients had complications regarding recoarctation, following balloon angioplasty intervention at our institute and other centres. Surgically extracted parts were examined histopathologically and patient's data were collected retrospectively.ResultThe reasons for recurrence of recoarctation after balloon angioplasty are as follows: patients with higher preoperative echocardiographic gradients had recoarctation earlier, neointimal proliferation, aortic intimal fibrosis at the region of ductal insertion, and ductal residual tissue debris after balloon angioplasty. No repeat intervention was required in the 15 patients who underwent surgery followed by balloon angioplasty. Early mortality was seen in one patient after surgery. Postoperative complication in the surgical group occurred in the form of chylothorax in one patient. CONCLUSION: In centres in which the neonatal ICU is inexperienced, balloon angioplasty is particularly recommended. In developing neonatal clinics, balloon angioplasty, when performed on patients at their earliest possible age, delays actual corrective operation to a later date, which in turn provides less risky surgical outcomes in infants who are gaining weight, growing, and do not have any haemodynamic complaints. PMID- 29345606 TI - Prevalence of transmitted drug resistance among HIV-1 treatment-naive patients in Beijing. AB - To optimise patients' outcomes and gain insight into transmitted drug resistance (TDR) among human immunodeficiency virus (HIV)-1 treatment-naive patients in Beijing, the prevalence of TDR was assessed. Demographic and clinical data of 1241 treatment-naive patients diagnosed between April 2014 and February 2015 were collected. TDR was defined using the Stanford University HIV drug resistance mutations database. The risk factors were evaluated by multi-logistic regression analysis. Among 932 successfully amplified cases, most were male (96.78%) and infected through men having sex with men (91.74%). Genotype were CRF01_AE (56.44%), B (20.60%), CRF07_BC (19.96%), C (1.61%) and other genotypes (1.39%). The overall prevalence of TDR was 6.12%. Most frequent mutations occurred in non nucleoside reverse transcriptase inhibitors (NNRTIs) (3.11%), followed by protease inhibitors (PIs) (2.25%) and nucleoside reverse transcriptase inhibitors (NRTIs) (1.32%). Furthermore, HIV-1 genotype was associated with high risk of resistance, in which genotype C and other genotype may have higher risk for resistance. The prevalence among treatment-naive patients in Beijing was low. Resistance to NNRTIs was higher than with PIs or NRTIs. Continuous monitoring of regional levels of HIV-1 TDRs would contribute to improve treatment outcomes and prevent failures. PMID- 29345607 TI - The Impact of Isolation Precautions on Hand Hygiene Frequency by Healthcare Workers. PMID- 29345608 TI - Food choices to meet nutrient recommendations for the adult Brazilian population based on the linear programming approach. AB - OBJECTIVE: To identify optimal food choices that meet nutritional recommendations to reduce prevalence of inadequate nutrient intakes. DESIGN: Linear programming was used to obtain an optimized diet with sixty-eight foods with the least difference from the observed population mean dietary intake while meeting a set of nutritional goals that included reduction in the prevalence of inadequate nutrient intakes to <=20 %. SETTING: Brazil. SUBJECTS: Participants (men and women, n 25 324) aged 20 years or more from the first National Dietary Survey (NDS) 2008-2009. RESULTS: Feasible solution to the model was not found when all constraints were imposed; infeasible nutrients were Ca, vitamins D and E, Mg, Zn, fibre, linolenic acid, monounsaturated fat and Na. Feasible solution was obtained after relaxing the nutritional constraints for these limiting nutrients by including a deviation variable in the model. Estimated prevalence of nutrient inadequacy was reduced by 60-70 % for most nutrients, and mean saturated and trans-fat decreased in the optimized diet meeting the model constraints. Optimized diet was characterized by increases especially in fruits (+92 g), beans (+64 g), vegetables (+43 g), milk (+12 g), fish and seafood (+15 g) and whole cereals (+14 g), and reductions of sugar-sweetened beverages (-90 g), rice (-63 g), snacks (-14 g), red meat (-13 g) and processed meat (-9.7 g). CONCLUSION: Linear programming is a unique tool to identify which changes in the current diet can increase nutrient intake and place the population at lower risk of nutrient inadequacy. Reaching nutritional adequacy for all nutrients would require major dietary changes in the Brazilian diet. PMID- 29345609 TI - Dietary patterns and their association with adiponectin and leptin concentrations throughout pregnancy: a prospective cohort. AB - The aim of this study was to evaluate the association of dietary patterns (DP) with maternal adiposity indicators, leptin, adiponectin and insulin concentrations during pregnancy. A prospective cohort of pregnant women followed up at the 5th-13th, 20th -26th and 30th-36th gestational weeks and 30-40 d postpartum was conducted in Rio de Janeiro. A FFQ was administered in the third trimester (30th-36th gestational weeks). The reduced rank regression procedure was used to identify DP that explain response variables (dietary fibre and total fat) related to indicators of maternal adiposity (postpartum weight retention and gestational weight gain (GWG) adequacy), and plasma leptin, adiponectin and insulin concentrations. The associations between tertiles of DP and the outcomes were determined using logistic regression or longitudinal linear mixed-effect regression models. The mean daily energy intake during pregnancy was 10 104 (sd 3234) kJ (2415 (sd 773) kcal), and GWG was 11.9 (sd 4.2) kg. In all, 40 % of women presented pre-gestational overweight/obesity. Excessive GWG occurred in 34.7 % of pregnant women and 56.6 % were overweight/obese at postpartum. The 'common-Brazilian' DP (characterised by higher intake of beans, rice and lower intake of fast food/snacks, candies/table sugar and processed meats/bacon) was positively associated with adiponectin (beta=1.07; 95 % CI 0.17, 1.98). The 'Western' DP (characterised by higher intake of fast food/snacks and processed meat/bacon and lower intake of noodles/pasta/roots/tubers and sodas) was negatively associated with adiponectin (beta=-1.11; 95 % CI -2.00, -0.22) and positively associated with leptin concentrations (beta=64.9; 95 % CI 22.8, 107.0) throughout pregnancy. It may be suggested that the 'common-Brazilian' is a healthy DP and beneficial for serum concentrations of adiponectin and leptin. PMID- 29345610 TI - Adherence to Central-Line Insertion Practices (CLIP) with Peripherally Inserted Central Catheters (PICC) and Central Venous Catheters (CVC): A Prospective Study of 50 Hospitals in China. PMID- 29345611 TI - Accuracy of Provider-Selected Indications for Antibiotic Orders. AB - Documentation of antibiotic indication provides helpful information for antimicrobial stewardship, but accuracy is not understood. Review of 396 antibiotic orders in a pediatric ICU and adult medicine step-down unit found 90% agreement between provider-selected indication and independent review. Prompts to enter antibiotic indication during order entry provide largely accurate information. Infect Control Hosp Epidemiol 2018;39:111-113. PMID- 29345612 TI - Fit Characteristics of N95 Filtering Facepiece Respirators and the Accuracy of the User Seal Check among Koreans. AB - Adequate facepiece fit of N95 filtering facepiece respirators (FFRs) is crucial for optimal protection against airborne pathogens. The quantitative fit test (QNFT) pass rates of the 4 N95 FFR models commonly used in Korea were below 50%. Male sex was identified as a single independent predictive factor for QNFT pass. Infect Control Hosp Epidemiol 2018;39:104-107. PMID- 29345613 TI - Comparative transcriptomics of Aspergillus fumigatus strains upon exposure to human airway epithelial cells. AB - Aspergillus fumigatus is an opportunistic, ubiquitous, saprophytic mould that can cause severe allergic responses in atopic individuals as well as life-threatening infections in immunocompromised patients. A critical step in the establishment of infection is the invasion of airway epithelial cells by the inhaled fungi. Understanding how A. fumigatus senses and responds to airway cells is important to understand the pathogenesis of invasive pulmonary aspergillosis. Here, we analysed the transcriptomes of two commonly used clinical isolates, Af293 and CEA10, during infection of the A549 type II pneumocyte cell line in vitro. We focused our RNA-seq analysis on the core set of genes that are present in the genomes of the two strains. Our results suggest that: (a) A. fumigatus does not mount a conserved transcriptional response to airway epithelial cells in our in vitro model and (b) strain background and time spent in the tissue culture media have a greater impact on the transcriptome than the presence of host cells. Our analyses reveal both common and strain-specific transcriptional programmes that allow for the generation of hypotheses about gene function as it pertains to pathogenesis and the significant phenotypic heterogeneity that is observed among A. fumigatus isolates. PMID- 29345615 TI - Variability in neural networks. AB - Experiments on neurons in the heart system of the leech reveal why rhythmic behaviors differ between individuals. PMID- 29345614 TI - Output variability across animals and levels in a motor system. AB - Rhythmic behaviors vary across individuals. We investigated the sources of this output variability across a motor system, from the central pattern generator (CPG) to the motor plant. In the bilaterally symmetric leech heartbeat system, the CPG orchestrates two coordinations in the bilateral hearts with different intersegmental phase relations (Deltaphi) and periodic side-to-side switches. Population variability is large. We show that the system is precise within a coordination, that differences in repetitions of a coordination contribute little to population output variability, but that differences between bilaterally homologous cells may contribute to some of this variability. Nevertheless, much output variability is likely associated with genetic and life history differences among individuals. Variability of Deltaphi were coordination-specific: similar at all levels in one, but significantly lower for the motor pattern than the CPG pattern in the other. Mechanisms that transform CPG output to motor neurons may limit output variability in the motor pattern. PMID- 29345616 TI - Inhibition of oxidative stress in cholinergic projection neurons fully rescues aging-associated olfactory circuit degeneration in Drosophila. AB - Loss of the sense of smell is among the first signs of natural aging and neurodegenerative diseases such as Alzheimer's and Parkinson's. Cellular and molecular mechanisms promoting this smell loss are not understood. Here, we show that Drosophila melanogaster also loses olfaction before vision with age. Within the olfactory circuit, cholinergic projection neurons show a reduced odor response accompanied by a defect in axonal integrity and reduction in synaptic marker proteins. Using behavioral functional screening, we pinpoint that expression of the mitochondrial reactive oxygen scavenger SOD2 in cholinergic projection neurons is necessary and sufficient to prevent smell degeneration in aging flies. Together, our data suggest that oxidative stress induced axonal degeneration in a single class of neurons drives the functional decline of an entire neural network and the behavior it controls. Given the important role of the cholinergic system in neurodegeneration, the fly olfactory system could be a useful model for the identification of drug targets. PMID- 29345617 TI - Loss of functional BAP1 augments sensitivity to TRAIL in cancer cells. AB - Malignant mesothelioma (MM) is poorly responsive to systemic cytotoxic chemotherapy and invariably fatal. Here we describe a screen of 94 drugs in 15 exome-sequenced MM lines and the discovery of a subset defined by loss of function of the nuclear deubiquitinase BRCA associated protein-1 (BAP1) that demonstrate heightened sensitivity to TRAIL (tumour necrosis factor-related apoptosis-inducing ligand). This association is observed across human early passage MM cultures, mouse xenografts and human tumour explants. We demonstrate that BAP1 deubiquitinase activity and its association with ASXL1 to form the Polycomb repressive deubiquitinase complex (PR-DUB) impacts TRAIL sensitivity implicating transcriptional modulation as an underlying mechanism. Death receptor agonists are well-tolerated anti-cancer agents demonstrating limited therapeutic benefit in trials without a targeting biomarker. We identify BAP1 loss-of function mutations, which are frequent in MM, as a potential genomic stratification tool for TRAIL sensitivity with immediate and actionable therapeutic implications. PMID- 29345618 TI - NECAPs are negative regulators of the AP2 clathrin adaptor complex. AB - Eukaryotic cells internalize transmembrane receptors via clathrin-mediated endocytosis, but it remains unclear how the machinery underpinning this process is regulated. We recently discovered that membrane-associated muniscin proteins such as FCHo and SGIP initiate endocytosis by converting the AP2 clathrin adaptor complex to an open, active conformation that is then phosphorylated (Hollopeter et al., 2014). Here we report that loss of ncap-1, the sole C. elegans gene encoding an adaptiN Ear-binding Coat-Associated Protein (NECAP), bypasses the requirement for FCHO-1. Biochemical analyses reveal AP2 accumulates in an open, phosphorylated state in ncap-1 mutant worms, suggesting NECAPs promote the closed, inactive conformation of AP2. Consistent with this model, NECAPs preferentially bind open and phosphorylated forms of AP2 in vitro and localize with constitutively open AP2 mutants in vivo. NECAPs do not associate with phosphorylation-defective AP2 mutants, implying that phosphorylation precedes NECAP recruitment. We propose NECAPs function late in endocytosis to inactivate AP2. PMID- 29345619 TI - miR-9 regulates basal ganglia-dependent developmental vocal learning and adult vocal performance in songbirds. AB - miR-9 is an evolutionarily conserved miRNA that is abundantly expressed in Area X, a basal ganglia nucleus required for vocal learning in songbirds. Here, we report that overexpression of miR-9 in Area X of juvenile zebra finches impairs developmental vocal learning, resulting in a song with syllable omission, reduced similarity to the tutor song, and altered acoustic features. miR-9 overexpression in juveniles also leads to more variable song performance in adulthood, and abolishes social context-dependent modulation of song variability. We further show that these behavioral deficits are accompanied by downregulation of FoxP1 and FoxP2, genes that are known to be associated with language impairments, as well as by disruption of dopamine signaling and widespread changes in the expression of genes that are important in circuit development and functions. These findings demonstrate a vital role for miR-9 in basal ganglia function and vocal communication, suggesting that dysregulation of miR-9 in humans may contribute to language impairments and related neurodevelopmental disorders. PMID- 29345621 TI - Circulating Helper T-Cell Subsets and Regulatory T Cells in Patients With Common Variable Immunodeficiency Without Known Monogenic Disease. AB - BACKGROUND: Common variable immunodeficiency (CVID) is the most common symptomatic primary immunodeficiency (PID). It is characterized by heterogeneous clinical manifestations and defects in B cells and T cells. In the present study, we investigated helper T (TH) cell subsets and regulatory T (Treg) cells and their related cytokines and transcription factors in CVID patients with no definitive genetic diagnosis. METHODS: The study population comprised 13 CVID patients and 13 healthy controls. Mutation analysis was performed using whole exome sequencing in CVID patients to rule out monogenic PIDs. TH subsets and Treg were analyzed using flow cytometry. The expression of determinant cytokines (IFN gamma, IL-17, IL-22, and IL-10) and cell subset specific transcription factors was evaluated before and after stimulation. RESULTS: The main clinical presentations of these patients were infections only and lymphoproliferative phenotypes. No autoimmune or allergy phenotypes were recorded. The frequencies of CD4+ T cells, TH17, and Treg cells were significantly reduced in CVID patients; however, TH1, TH1-like TH17, and TH22 subsets were normal. After stimulation, expression of retinoic-acid-orphan-receptor-C (RORC), runtrelated transcription factor 1 (RUNX1), IL17, and IL10 was significantly lower in CVID patients than in the healthy controls. Moreover, the concentration of IL-17 and IL-10 in the cell culture supernatants of stimulated CD4+ T cells was lower in CVID patients than in healthy controls. CONCLUSIONS: Our findings demonstrate that the imbalance of TH17 and Tregs could be associated with infection and the lymphoproliferative phenotype in CVID patients without monogenic disorders. PMID- 29345620 TI - Functional role of the type 1 pilus rod structure in mediating host-pathogen interactions. AB - Uropathogenic E. coli (UPEC), which cause urinary tract infections (UTI), utilize type 1 pili, a chaperone usher pathway (CUP) pilus, to cause UTI and colonize the gut. The pilus rod, comprised of repeating FimA subunits, provides a structural scaffold for displaying the tip adhesin, FimH. We solved the 4.2 A resolution structure of the type 1 pilus rod using cryo-electron microscopy. Residues forming the interactive surfaces that determine the mechanical properties of the rod were maintained by selection based on a global alignment of fimA sequences. We identified mutations that did not alter pilus production in vitro but reduced the force required to unwind the rod. UPEC expressing these mutant pili were significantly attenuated in bladder infection and intestinal colonization in mice. This study elucidates an unappreciated functional role for the molecular spring-like property of type 1 pilus rods in host-pathogen interactions and carries important implications for other pilus-mediated diseases. PMID- 29345622 TI - Position paper on nasal obstruction: evaluation and treatment. AB - Nasal obstruction (NO) is defined as the subjective perception of discomfort or difficulty in the passage of air through the nostrils. It is a common reason for consultation in primary and specialized care and may affect up to 30%-40% of the population. It affects quality of life (especially sleep) and lowers work efficiency. The aim of this document is to agree on how to treat NO, establish a methodology for evaluating and diagnosing it, and define an individualized approach to its treatment. NO can be unilateral or bilateral, intermittent or persistent and may be caused by local or systemic factors, which may be anatomical, inflammatory, neurological, hormonal, functional, environmental, or pharmacological in origin. Directed study of the medical history and physical examination are key for diagnosing the specific cause. NO may be evaluated using subjective assessment tools (visual analog scale, symptom score, standardized questionnaires) or by objective estimation (active anterior rhinomanometry, acoustic rhinometry, peak nasal inspiratory flow). Although there is little correlation between the results, they may be considered complementary and not exclusive. Assessing the impact on quality of life through questionnaires standardized according to the underlying disease is also advisable. NO is treated according to its cause. Treatment is fundamentally pharmacological (topical and/or systemic) when the etiology is inflammatory or functional. Surgery may be necessary when medical treatment fails to complement or improve medical treatment or when other therapeutic approaches are not possible. Combinations of surgical techniques and medical treatment may be necessary. PMID- 29345623 TI - Affordable and accurate large-scale hybrid-functional calculations on GPU accelerated supercomputers. AB - Performing high accuracy hybrid functional calculations for condensed matter systems containing a large number of atoms is at present computationally very demanding or even out of reach if high quality basis sets are used. We present a highly optimized multiple graphics processing unit implementation of the exact exchange operator which allows one to perform fast hybrid functional density functional theory (DFT) calculations with systematic basis sets without additional approximations for up to a thousand atoms. With this method hybrid DFT calculations of high quality become accessible on state-of-the-art supercomputers within a time-to-solution that is of the same order of magnitude as traditional semilocal-GGA functionals. The method is implemented in a portable open-source library. PMID- 29345624 TI - The role of H-bond in the high-pressure chemistry of model molecules. AB - Pressure is an extraordinary tool to modify direction and strength of intermolecular interactions with important consequences on the chemical stability of molecular materials. The decrease of the distance among nearest neighbour molecules can give rise to reactive configurations reflecting the crystal arrangement and leading to association processes. In this context, the role of the H-bonds is very peculiar because their usual strengthening with rising pressure does not necessarily configure a decrease of the reaction activation energy but, on the contrary, can give rise to an anomalous stability of the system. In spite of this central role, the mechanisms by which a chemical reaction is favoured or prevented by H-bonding under high pressure conditions is a poorly explored field. Here we review a few studies where the chemical behaviour of simple molecular systems under static compression was related to the H-bonding evolution with pressure. These results are able to clarify a wealth of changes of the chemical and physical properties caused by the strengthening with pressure of the H-bonding network and provide additional tools to understand the mechanisms of high-pressure reactivity, a mandatory step to make these synthetic methods of potential interest for applicative purposes. PMID- 29345625 TI - The all-optical modulator in dielectric-loaded waveguide with graphene-silicon heterojunction structure. AB - All-optical modulators based on graphene show great promise for on-chip optical interconnects. However, the modulation performance of all-optical modulators is usually based on the interaction between graphene and the fiber, limiting their potential in high integration. Based on this point, an all-optical modulator in a dielectric-loaded waveguide (DLW) with a graphene-silicon heterojunction structure (GSH) is proposed. The DLW raises the waveguide mode, which provides a strong light-graphene interaction. Sufficient tuning of the graphene Fermi energy beyond the Pauli blocking effect is obtained with the presented GSH structure. Under the modulation light with a wavelength of 532 nm and a power of 60 mW, a modulation efficiency of 0.0275 dB um-1 is achieved for light with a communication wavelength of 1.55 um in the experiment. This modulator has the advantage of having a compact footprint, which may make it a candidate for achieving a highly integrated all-optical modulator. PMID- 29345626 TI - Accelerating acquisition strategies for low-frequency conductivity imaging using MREIT. AB - We sought to improve efficiency of magnetic resonance electrical impedance tomography data acquisition so that fast conductivity changes or electric field variations could be monitored. Undersampling of k-space was used to decrease acquisition times in spin-echo-based sequences by a factor of two. Full MREIT data were reconstructed using continuity assumptions and preliminary scans gathered without current. We found that phase data were reconstructed faithfully from undersampled data. Conductivity reconstructions of phantom data were also possible. Therefore, undersampled k-space methods can potentially be used to accelerate MREIT acquisition. This method could be an advantage in imaging real time conductivity changes with MREIT. PMID- 29345627 TI - Large-area synthesis and photoelectric properties of few-layered MoSe2 on molybdenum foils. AB - Compared with MoS2 and WS2, the selenide analogues have narrower band gaps and higher electron mobilities, which make them more applicable to real electrical devices. Besides, few-layered metal selenides have higher electrical conductivity, carrier mobility and light absorption than the corresponding monolayers. However, the large-scale and high-quality growth of few-layered metal selenides remains a significant challenge. Here, we develop a facile method to grow large-area and highly-crystalline few-layered MoSe2 by directly selenizing the Mo foil surfaces at 550 oC within 60 min under ambient pressure. The atomic layers were controllably grown with the thickness between 3.4 and 6 nm which just met the thickness range required for high-performance electrical devices. Furthermore, we fabricated a vertical p-n junction photodetector composed of few layered MoSe2 and p-type silicon, achieving photoresponsivity higher than two orders of magnitude than that of the reported monolayer counterpart. This technique provides a feasible approach towards preparing other 2D TMDs for device applications. PMID- 29345628 TI - Reversibility and intermediate steps as key tools for the growth of extended ordered polymers via on-surface synthesis. AB - Surface-confined polymerization is a bottom-up strategy to create one- and two dimensional covalent organic nanostructures with a pi-conjugated backbone, which are suitable to be employed in real-life electronic devices, due to their high mechanical resistance and electronic charge transport efficiency. This strategy makes it possible to change the properties of the final nanostructures by a careful choice of the monomer architecture (i.e. of its constituent atoms and their spatial arrangement). Several chemical reactions have been proven to form low-dimensional polymers on surfaces, exploiting a variety of precursors in combination with metal (e.g. Cu, Ag, Au) and insulating (e.g. NaCl, CaCO3) surfaces. One of the main challenges of such an approach is to obtain nanostructures with long-range order, to boost the conductance performances of these materials. Most of the exploited chemical reactions use irreversible coupling between the monomers and, as a consequence, the resulting structures often suffer from poor order and high defect density. This review focuses on the state-of-the-art surface-confined polymerization reactions, with particular attention paid to reversible coupling pathways and irreversible processes including intermediate states, which are key aspects to control to increase the order of the final nanostructure. PMID- 29345629 TI - Molecular dynamics based simulations to study the fracture strength of monolayer graphene oxide. AB - The aim of this article is to study the effects of functional groups such as hydroxyl, epoxide and carboxyl on the fracture toughness of graphene. These functional groups form the backbone of the intrinsic atomic structure of graphene oxide (GO). Molecular dynamics based simulations were performed in conjunction with reactive force field parameters to capture the Mode-I fracture toughness of functionalised graphene. Simulations were performed in stages, to study the effect of these functional groups, individually as well as all together on the fracture toughness of GO nanosheets. The molecular dynamics based simulations performed in this article helps us to conclude that the spatial distribution and concentration of functional groups significantly affects the fracture behavior of GO nanosheets. PMID- 29345630 TI - Completely flat two-dimensional Zn3O2 monolayer with triangle and pentangle coordinated networks. AB - Two-dimensional (2D) materials with strictly planar hyper-coordinated motifs are of great importance in fundamental science and potential applications but extremely rare. Here we theoretically design a novel 2D IIB-VIA inorganic system, namely Zn3O2 monolayer, by comprehensive first-principles computations. This Zn3O2 monolayer is composed from highly symmetrical tri-coordinated oxygen and tetra-coordinated zinc, featuring planar and peculiar triangle and pentangle combined bonded network. The newly predicted Zn3O2 monolayer possesses excellent dynamic and thermal stabilities and is also the lowest-energy structure of its 2D space indicated by particle swarm search, supporting its experimentally synthetic viability. A relatively wide band gap of 4.46 eV endows it potential applications in electronics and optoelectronics. The present findings provide a new field of hyper-coordinated 2D nanomaterials for study. PMID- 29345631 TI - Role of four-fermion interaction and impurity in the states of two-dimensional semi-Dirac materials. AB - We study the effects of four-fermion interaction and impurity on the low-energy states of 2D semi-Dirac materials by virtue of the unbiased renormalization group approach. The coupled flow equations that govern the energy-dependent evolutions of all correlated interaction parameters are derived after taking into account one-loop corrections from the interplay between four-fermion interaction and impurity. Whether and how four-fermion interaction and impurity influence the low energy properties of 2D semi-Dirac materials are discreetly explored and addressed attentively. After carrying out the standard renormalization group analysis, we find that both trivial insulating and nontrivial semimetal states are qualitatively stable against all four kinds of four-fermion interactions. However, while switching on both four-fermion interaction and impurity, certain insulator-semimetal phase transitions and the distance of Dirac nodal points can be respectively induced and modified due to their strong interplay and intimate competition. Moreover, several non-Fermi liquid behaviors that deviate from the conventional Fermi liquids are exhibited at the lowest-energy limit. PMID- 29345632 TI - Brain-machine interfaces for controlling lower-limb powered robotic systems. AB - OBJECTIVE: Lower-limb, powered robotics systems such as exoskeletons and orthoses have emerged as novel robotic interventions to assist or rehabilitate people with walking disabilities. These devices are generally controlled by certain physical maneuvers, for example pressing buttons or shifting body weight. Although effective, these control schemes are not what humans naturally use. The usability and clinical relevance of these robotics systems could be further enhanced by brain-machine interfaces (BMIs). A number of preliminary studies have been published on this topic, but a systematic understanding of the experimental design, tasks, and performance of BMI-exoskeleton systems for restoration of gait is lacking. APPROACH: To address this gap, we applied standard systematic review methodology for a literature search in PubMed and EMBASE databases and identified 11 studies involving BMI-robotics systems. The devices, user population, input and output of the BMIs and robot systems respectively, neural features, decoders, denoising techniques, and system performance were reviewed and compared. MAIN RESULTS: Results showed BMIs classifying walk versus stand tasks are the most common. The results also indicate that electroencephalography (EEG) is the only recording method for humans. Performance was not clearly presented in most of the studies. Several challenges were summarized, including EEG denoising, safety, responsiveness and others. SIGNIFICANCE: We conclude that lower-body powered exoskeletons with automated gait intention detection based on BMIs open new possibilities in the assistance and rehabilitation fields, although the current performance, clinical benefits and several key challenging issues indicate that additional research and development is required to deploy these systems in the clinic and at home. Moreover, rigorous EEG denoising techniques, suitable performance metrics, consistent trial reporting, and more clinical trials are needed to advance the field. PMID- 29345633 TI - Impacts of an Exercise Program and Motivational Telephone Counseling on Health Related Quality of Life in People With Parkinson's Disease. AB - PURPOSE: The purpose of this study was to test the effects of group exercise and telephone counseling on physical and psychosocial health in people with Parkinson's disease (PD). DESIGN: This was a quasiexperimental study with a nonequivalent control group. METHODS: This study took place in Seoul, South Korea. Twenty-two and 20 subjects participated in the intervention and comparison groups, respectively. The intervention group performed group exercises twice a week and received motivational telephone counseling every 2 weeks for 12 weeks. FINDINGS: Significant effects of the intervention were found in overall health related quality of life (HRQOL; p = .012) and in the following HRQOL dimensions: stigma (p = .026), social function (p = .003), cognition (p = .028), and communication (p = .014). No other variables such as activities of daily living, functional fitness, and depression exhibited statistically significant effects. CONCLUSION/CLINICAL RELEVANCE: These results indicate that group exercise with telephone counseling positively affects some aspects of HRQOL in PD patients. PMID- 29345634 TI - Erratum. PMID- 29345635 TI - Genetic risk, dysbiosis, and treatment stratification using host genome and gut microbiome in inflammatory bowel disease. AB - OBJECTIVES: Inflammatory bowel diseases (IBD), comprised of Crohn's disease (CD) and ulcerative colitis (UC), are characterized by a complex pathophysiology that is thought to result from an aberrant immune response to a dysbiotic luminal microbiota in genetically susceptible individuals. New technologies support the joint assessment of host-microbiome interaction. METHODS: Using whole genome sequencing and shotgun metagenomics, we studied the clinical features, host genome, and stool microbial metagenome of 85 IBD patients, and compared the results to 146 control individuals. Genetic risk scores, computed on 159 single nucleotide variants, and human leukocyte antigen (HLA) types differentiated IBD patients from healthy controls. RESULTS: Genetic risk was associated with the need for use of biologics in IBD and, modestly, with the composition of the gut microbiome. As compared with healthy controls, IBD patients had hallmarks of stool microbiome dysbiosis, with loss of a diversified core microbiome, enrichment and depletion of specific bacteria, and enrichment of bacterial virulence factors. CONCLUSIONS: We show that genetic risk may have a role in early risk stratification in the care of IBD patients and propose that expression of virulence factors in a dysbiotic microbiome may contribute to pathogenesis in IBD. PMID- 29345637 TI - Structural basis of RNA polymerase III transcription initiation. AB - RNA polymerase (Pol) III transcribes essential non-coding RNAs, including the entire pool of transfer RNAs, the 5S ribosomal RNA and the U6 spliceosomal RNA, and is often deregulated in cancer cells. The initiation of gene transcription by Pol III requires the activity of the transcription factor TFIIIB to form a transcriptionally active Pol III preinitiation complex (PIC). Here we present electron microscopy reconstructions of Pol III PICs at 3.4-4.0 A and a reconstruction of unbound apo-Pol III at 3.1 A. TFIIIB fully encircles the DNA and restructures Pol III. In particular, binding of the TFIIIB subunit Bdp1 rearranges the Pol III-specific subunits C37 and C34, thereby promoting DNA opening. The unwound DNA directly contacts both sides of the Pol III cleft. Topologically, the Pol III PIC resembles the Pol II PIC, whereas the Pol I PIC is more divergent. The structures presented unravel the molecular mechanisms underlying the first steps of Pol III transcription and also the general conserved mechanisms of gene transcription initiation. PMID- 29345636 TI - Promoting the accumulation of tumor-specific T cells in tumor tissues by dendritic cell vaccines and chemokine-modulating agents. AB - This protocol describes how to induce large numbers of tumor-specific cytotoxic T cells (CTLs) in the spleens and lymph nodes of mice receiving dendritic cell (DC) vaccines and how to modulate tumor microenvironments (TMEs) to ensure effective homing of the vaccination-induced CTLs to tumor tissues. We also describe how to evaluate the numbers of tumor-specific CTLs within tumors. The protocol contains detailed information describing how to generate a specialized DC vaccine with augmented ability to induce tumor-specific CTLs. We also describe methods to modulate the production of chemokines in the TME and show how to quantify tumor specific CTLs in the lymphoid organs and tumor tissues of mice receiving different treatments. The combined experimental procedure, including tumor implantation, DC vaccine generation, chemokine-modulating (CKM) approaches, and the analyses of tumor-specific systemic and intratumoral immunity is performed over 30-40 d. The presented ELISpot-based ex vivo CTL assay takes 6 h to set up and 5 h to develop. In contrast to other methods of evaluating tumor-specific immunity in tumor tissues, our approach allows detection of intratumoral T-cell responses to nonmanipulated weakly immunogenic cancers. This detection method can be performed using basic laboratory skills, and facilitates the development and preclinical evaluation of new immunotherapies. PMID- 29345638 TI - Molecular mechanism of promoter opening by RNA polymerase III. AB - RNA polymerase III (Pol III) and transcription factor IIIB (TFIIIB) assemble together on different promoter types to initiate the transcription of small, structured RNAs. Here we present structures of Pol III preinitiation complexes, comprising the 17-subunit Pol III and the heterotrimeric transcription factor TFIIIB, bound to a natural promoter in different functional states. Electron cryo microscopy reconstructions, varying from 3.7 A to 5.5 A resolution, include two early intermediates in which the DNA duplex is closed, an open DNA complex, and an initially transcribing complex with RNA in the active site. Our structures reveal an extremely tight, multivalent interaction between TFIIIB and promoter DNA, and explain how TFIIIB recruits Pol III. Together, TFIIIB and Pol III subunit C37 activate the intrinsic transcription factor-like activity of the Pol III-specific heterotrimer to initiate the melting of double-stranded DNA, in a mechanism similar to that of the Pol II system. PMID- 29345640 TI - Strategy for making safer opioids bolstered. PMID- 29345639 TI - Emergent constraint on equilibrium climate sensitivity from global temperature variability. AB - Equilibrium climate sensitivity (ECS) remains one of the most important unknowns in climate change science. ECS is defined as the global mean warming that would occur if the atmospheric carbon dioxide (CO2) concentration were instantly doubled and the climate were then brought to equilibrium with that new level of CO2. Despite its rather idealized definition, ECS has continuing relevance for international climate change agreements, which are often framed in terms of stabilization of global warming relative to the pre-industrial climate. However, the 'likely' range of ECS as stated by the Intergovernmental Panel on Climate Change (IPCC) has remained at 1.5-4.5 degrees Celsius for more than 25 years. The possibility of a value of ECS towards the upper end of this range reduces the feasibility of avoiding 2 degrees Celsius of global warming, as required by the Paris Agreement. Here we present a new emergent constraint on ECS that yields a central estimate of 2.8 degrees Celsius with 66 per cent confidence limits (equivalent to the IPCC 'likely' range) of 2.2-3.4 degrees Celsius. Our approach is to focus on the variability of temperature about long-term historical warming, rather than on the warming trend itself. We use an ensemble of climate models to define an emergent relationship between ECS and a theoretically informed metric of global temperature variability. This metric of variability can also be calculated from observational records of global warming, which enables tighter constraints to be placed on ECS, reducing the probability of ECS being less than 1.5 degrees Celsius to less than 3 per cent, and the probability of ECS exceeding 4.5 degrees Celsius to less than 1 per cent. PMID- 29345642 TI - Support for US postdocs is growing slowly. PMID- 29345641 TI - The dark side of light: how artificial lighting is harming the natural world. PMID- 29345644 TI - China's plan to recruit talented researchers. PMID- 29345645 TI - Integrity must underpin quality of statistics. PMID- 29345646 TI - Scientists in China regenerate lens in human eye. PMID- 29345647 TI - Laws are not the only way to boost immunization. PMID- 29345648 TI - Fossilized pregnant dinosaur discovered in southern China. PMID- 29345649 TI - NASA test proves pulsars can function as a celestial GPS. PMID- 29345650 TI - Synthetic species made to shun sex with wild organisms. PMID- 29345651 TI - US i mmigration fight heightens legal limbo for young 'Dreamer' scientists. PMID- 29345652 TI - Revamped collider hunts for cracks in the fundamental theory of physics. PMID- 29345653 TI - Make lighting healthier. PMID- 29345655 TI - China enters the battle for AI talent. PMID- 29345654 TI - Ben Barres (1954-2017). PMID- 29345656 TI - Intelligence conference, rainforest park and oil-spill fears. PMID- 29345657 TI - Putting China's science on the map. PMID- 29345658 TI - How a biotech entrepreneur benefits from splitting time between China and the United States. PMID- 29345659 TI - Returning to a revitalized China after research abroad. PMID- 29345660 TI - Pathogens boosted by food additive. PMID- 29345661 TI - How private-sector research is changing China. PMID- 29345662 TI - Maths strikes a blow for democracy. PMID- 29345663 TI - Don't misrepresent link between bats and SARS. PMID- 29345664 TI - Could baby's first bacteria take root before birth? PMID- 29345665 TI - How to find a job in China. PMID- 29345666 TI - Limitless translation limits translation. PMID- 29345667 TI - Showcase scientists from the global south. PMID- 29345668 TI - The ups and downs of moving to China. PMID- 29345669 TI - Why China needs your scientific expertise. PMID- 29345671 TI - Why an Italian astrophysicist decided to move to Shanghai. PMID- 29345672 TI - Train robots to self-certify their safe operation. PMID- 29345673 TI - China's AI dreams. PMID- 29345675 TI - The Fields Medal should return to its roots. PMID- 29345674 TI - Career guide: China. PMID- 29345677 TI - Mice learn to avoid the rat race. PMID- 29345676 TI - Research kudos does not need a price tag. PMID- 29345679 TI - Fixing statistics is more than a technical issue. PMID- 29345680 TI - Should we steer clear of the winner-takes-all approach? PMID- 29345678 TI - China needs to listen to its researchers to become a scientific superpower. PMID- 29345681 TI - Biotech booms in China. PMID- 29345683 TI - Homing in on a key factor of climate change. PMID- 29345684 TI - MSH6 and PMS2 germ-line pathogenic variants implicated in Lynch syndrome are associated with breast cancer. AB - PURPOSE: An association of Lynch syndrome (LS) with breast cancer has been long suspected; however, there have been insufficient data to address this question for each of the LS genes individually. METHODS: We conducted a retrospective review of personal and family history in 423 women with pathogenic or likely pathogenic germ-line variants in MLH1 (N = 65), MSH2 (N = 94), MSH6 (N = 140), or PMS2 (N = 124) identified via clinical multigene hereditary cancer testing. Standard incidence ratios (SIRs) of breast cancer were calculated by comparing breast cancer frequencies in our study population with those in the general population (Surveillance, Epidemiology, and End Results 18 data). RESULTS: When evaluating by gene, the age-standardized breast cancer risks for MSH6 (SIR = 2.11; 95% confidence interval (CI), 1.56-2.86) and PMS2 (SIR = 2.92; 95% CI, 2.17 3.92) were associated with a statistically significant risk for breast cancer whereas no association was observed for MLH1 (SIR = 0.87; 95% CI, 0.42-1.83) or MSH2 (SIR = 1.22; 95% CI, 0.72-2.06). CONCLUSION: Our data demonstrate that two LS genes, MSH6 and PMS2, are associated with an increased risk for breast cancer and should be considered when ordering genetic testing for individuals who have a personal and/or family history of breast cancer. PMID- 29345685 TI - Imaging: Pacemakers, ICDs, and MRI. PMID- 29345687 TI - Interventional cardiology: 3D printing of personalized implants for left atrial appendage occlusion. PMID- 29345686 TI - Reversal agents for non-vitamin K antagonist oral anticoagulants. AB - The non-vitamin K antagonist oral anticoagulants (NOACs) include dabigatran, which inhibits thrombin, and apixaban, betrixaban, edoxaban, and rivaroxaban, which inhibit coagulation factor Xa. Although clinical studies of NOACs were conducted without antidotes, patient outcomes with major bleeding when receiving NOACs were no worse than those in patients treated with a vitamin K antagonist. Nonetheless, in patients with life-threatening bleeding or requiring urgent surgery, the capacity for rapid NOAC reversal is likely to increase patient safety. Three NOAC reversal agents are in various stages of development: idarucizumab, a specific reversal agent for dabigatran; andexanet alfa, which reverses factor Xa inhibitors; and ciraparantag, which is purported to reverse all NOACs. Idarucizumab is licensed in many countries, andexanet is under consideration by regulatory agencies, and ciraparantag is undergoing phase III evaluation. In the absence of licensed reversal agents for the oral factor Xa inhibitors, prothrombin complex concentrates are often used in patients taking these agents who present with life-threatening bleeding. In this Review, we summarize the approved indications for the NOACs, outline how to measure their anticoagulant effects, describe the mechanism of action of the reversal strategies, assess the preclinical and clinical data supporting their use, provide guidance on potential indications for reversal, and offer a management approach for patients treated with NOACs who present with serious bleeding or require urgent surgery. PMID- 29345688 TI - Corrigendum. AB - [This corrects the article DOI: 10.1177/1757177417695647.]. PMID- 29345689 TI - Concerns with conclusions in the article by Sherwood et al 'Key differences between 13 KRAS mutation detection technologies and their relevance for clinical practice'. PMID- 29345690 TI - Clozapine-induced myocarditis. AB - Approved in 1989 for the management of treatment-resistant schizophrenia, Clozapine is a last-line atypical antipsychotic drug used with increasing frequency. In addition to its well-known side effect of agranulocytosis, this drug also carries with it rare but serious adverse cardiovascular risk of myocarditis. We present a patient on Clozapine who was admitted to the cardiology service with chest pain, ST segment elevations and elevated troponin concerning for acute myocardial infarction. Evaluation with imaging revealed decreased left ventricular function, however, no coronary artery disease was present on catheterization; findings consistent with a diagnosis of myocarditis. Subsequent discontinuation of the patient's Clozapine and initiation of brief supportive medical therapy resulted in full recovery of systolic left ventricular function. Given the potential cardiovascular mortality risk, it is important for physicians on cardiology services caring for psychiatric patients to be aware of the presentation of symptoms, diagnostic findings and management of Clozapine induced myocarditis. PMID- 29345691 TI - Re: Goel A. Research training during residency. Indian J Urol 2017;33:257-8. PMID- 29345693 TI - Corrigendum. AB - [This corrects the article DOI: 10.1177/1757177417720999.]. PMID- 29345692 TI - Erratum: Publisher's Note: "Implications of short time scale dynamics on long time processes" (Struct. Dyn. 4, 061507 (2017)]. AB - [This corrects the article DOI: 10.1063/1.4996448.]. PMID- 29345694 TI - Erratum to: Physical fitness of Ghanaian physiotherapists and its correlation with age and exercise engagement: a pilot study. AB - [This corrects the article DOI: 10.1186/s40945-016-0016-2.]. PMID- 29345695 TI - Erratum: Kini Bailur J, Mehta S, Zhang L, et al. Changes in bone marrow innate lymphoid cell subsets in monoclonal gammopathy: target for IMiD therapy. Blood Adv. 2017;1(25):2343-2347. AB - [This corrects the article DOI: 10.1182/bloodadvances.2017012732.]. PMID- 29345697 TI - Re: Singh A et al. Robot-assisted retroperitoneal lymph node dissection: Feasibility and outcome in postchemotherapy residual mass in testicular cancer. Indian J Urol 2017;33:304-9. PMID- 29345696 TI - Antiemetic efficacy and safety of granisetron or palonosetron alone and in combination with a corticosteroid for ABVD therapy-induced nausea and vomiting. AB - Background: Antiemetic effects and safety of granisetron or palonosetron alone and in combination with a corticosteroid against chemotherapy-induced nausea and vomiting (CINV) were retrospectively evaluated in patients with Hodgkin lymphoma receiving adriamycin, bleomycin, vinblastine, and dacarbazine (ABVD) therapy. Methods: A total of 39 patients were eligible for this study. Before ABVD therapy, granisetron or palonosetron was intravenously administered with or without a corticosteroid (dexamethasone or hydrocortisone) and aprepitant. The proportions of patients with complete control (CC) during the overall (0-120 h after the start of ABVD therapy), acute (0-24 h) and delayed (24-120 h) phases were evaluated. CC was defined as no vomiting and no use of antiemetic rescue medication with only grade 0-1 nausea. Results: Granisetron and palonosetron were administered in 21 and 18 patients, respectively. The CC rate during the acute, delayed and overall phases was not statistically different between the two groups. The CINV was completely controlled during overall phase in 58.3% of patients receiving granisetron or palonosetron in combination with a corticosteroid, whereas in 11.1% of those without co-treatment of a corticosteroid (P < 0.05). There were significantly higher frequencies of anorexia, leucopenia and neutropenia in the palonosetron group. There is a statistically significant difference in the frequency of febrile neutropenia between presence and absence of a corticosteroid (p = 0.024). Conclusion: These findings suggested that a combination use of a corticosteroid with a 5-HT3 receptor antagonist was preferable for CINV control in patients with Hodgkin lymphoma receiving ABVD therapy, although the careful management of febrile neutropenia is required. Trial registration: The study approval numbers in the institution; 24-12 and 24-359. Registered April 17, 2012 and June 21, 2012. PMID- 29345698 TI - Aerogen bonds formed between AeOF2 (Ae = Kr, Xe) and diazines: comparisons between sigma-hole and pi-hole complexes. AB - The interaction between KrOF2 or XeOF2 and the 1,2, 1,3, and 1,4 diazines is characterized chiefly by a Kr/XeN aerogen bond, as deduced from ab initio calculations. The most stable dimers take advantage of the sigma-hole on the aerogen atom, wherein the two molecules lie in the same plane. The interaction is quite strong, as much as 18 kcal mol-1. A second class of dimer geometry utilizes the pi-hole above the aerogen atom in an approximate perpendicular arrangement of the two monomers; these structures are not as strongly bound: 6-8 kcal mol-1. Both sorts of dimers contain auxiliary CHF H-bonds which contribute to their stability, but even with their removal, the aerogen bond energy remains as high as 14 kcal mol-1. The nature and strength of each specific interaction is confirmed and quantified by AIM, NCI, NBO, and electron density shift patterns. There is not a great deal of sensitivity to the identity of either the aerogen atom or the position of the two N atoms in the diazine. PMID- 29345699 TI - Theoretical investigations on the unsymmetrical effect of beta-link Zn-porphyrin sensitizers on the performance for dye-sensitized solar cells. AB - Dye sensitizers play an important role in dye-sensitized solar cells (DSSCs). As a promising strategy for the design of novel porphyrin sensitizers, the asymmetric modification of the porphyrin ring to meso-link porphyrin sensitizer has emerged in recent years, which can improve the light-harvesting properties and enhance the electron distribution. In this work, in order to reveal the essence of the effect of unsymmetrical substitution on the performance of beta link porphyrin dyes in DSSCs, four kinds of common beta-link porphyrin dyes with different structures are calculated by using density functional theory (DFT) and time-dependent density functional theory (TD-DFT). The electronic structures and optical properties of these studied dyes in dimethylformamide (DMF) are also investigated. The key parameters of the short-circuit current density (Jsc), including light harvesting efficiency (LHE), electron injection driving force (DeltaGinject), and intra-molecular charge transfer (ICT) are discussed in detail. In addition, the periodic DFT calculations in the dye-TiO2 systems are also employed to investigate the geometrical and electronic injection process of the different connection types of these studied dyes adsorbed on the periodic TiO2 model with an exposed anatase (101) surface. We expect the present study would deepen the understanding of the alternative function of unsymmetrical substitution and may contribute to future DSSC design. PMID- 29345700 TI - Abnormal separation of the silicon-oxygen bond in the liquid layering transition of silicon dioxide in a nanoslit. AB - We investigated the unusual layering transition (LT) in quasi-2D liquid silicon dioxide (SiO2) confined in a nanoslit. Our results indicate that the slit size and pressure induce the abnormal LT in liquid SiO2, accompanied by a rapid change in the density, diffusion coefficient, pair correlation function and average potential energy. The silicon and oxygen atoms are almost completely separated under the extremely strong confinement effect, which is the characteristic feature of the LT. The negative slope of the LT lines in the phase diagram at different pressures suggests that a confinement-induced LT occurs at high pressure and a pressure-induced LT occurs at low pressure. PMID- 29345701 TI - Effects of particle size and annealing on plasmon-induced charge separation at self-assembled gold nanoparticle arrays. AB - Two-dimensional periodic Au nanoparticle arrays were constructed on TiO2 thin films by a micelle lithography method and seed-mediated photoelectrochemical growth. Their adjustable interparticle distance allows investigation of a particle size effect on plasmon-induced charge separation (PICS) efficiencies without interference from particle aggregation or plasmon coupling. External or internal PICS efficiencies were found to increase and decrease, respectively, with an increase in particle diameter from 25 to 38 nm. Improvement of the contact between Au nanoparticles and TiO2 by annealing enhanced the intensity of a plasmonic interface mode and both external and internal PICS efficiencies. PMID- 29345702 TI - Assessing the consumption of berries and associated factors in the United States using the National Health and Nutrition Examination Survey (NHANES), 2007-2012. AB - Intake of berries was assessed relative to other fruit and fruit juices and total fruit intake in the U.S. population age 2 years and older using the National Health and Nutrition Examination Survey, 2007-2012. Average daily intake of total fruit was about 1 cup, and berries comprised approximately 10% of total fruit consumption. Only 18% of the population met the recommendation of at least 2 cups of fruit per day. Children ages 2 to 5 years consumed the most total fruit of which about half was juice and 4% of which was berries. Among adults, the highest berry consumption was by those who were 65 years and older, non-Hispanic White, and had the highest education and income levels. Use of the Nutrition Facts panel and ingredient labeling was associated with greater total fruit and berry intake. Those who were aware of an amount of fruit that is associated with good health and of dietary guidance in general and those who had fruit available in the home consumed about twice as much berries as others. Fruit intake remains below recommendations in the U.S.; berry intake is particularly low. Behavioral indicators provided insight on how fruit and berry consumption might be increased. PMID- 29345703 TI - Controllable colloidal synthesis of anisotropic tin dichalcogenide nanocrystals for thin film thermoelectrics. AB - Tin chalcogenides have shown promise in applications including energy storage, optoelectronics, photovoltaics, and thermoelectrics. Here, we present a colloidal synthesis strategy to produce tin dichalcogenide nanocrystals (NCs) with controllable stoichiometry, vacancies, shape, and crystal structure. Compared with previously reported methods, we use less expensive precursors, such as tin(iv) chloride and sulfur or selenium powder, to produce tin(iv) chalcogenide NCs. SnS2 and SnSe2 NCs with novel NC morphologies including SnS2 nanoflowers/nanoflakes, SnSe2 nanosheets with circular and hexagonal shapes, as well as mixtures of nanospheres and nanoflakes were prepared by varying the solvents and anion precursors. We were also able to reduce tin(iv) to tin(ii) to produce tin(ii) chalcogenide NCs. The corresponding thin films were prepared by spin-coating, followed by post-treatment to study their thermoelectric properties. Room temperature Seebeck coefficients of -150 MUV K-1 and -126 MUV K 1 were measured for SnS2 and SnSe2 films, demonstrating their promise as thin film thermoelectric materials. PMID- 29345704 TI - Hierarchical core-shell structures of P-Ni(OH)2 rods@MnO2 nanosheets as high performance cathode materials for asymmetric supercapacitors. AB - The hierarchical porous structure with phosphorus-doped Ni(OH)2 (P-Ni(OH)2) rods as the core and MnO2 nanosheets as the shell is fabricated directly by growth on a three-dimensional (3D) flexible Ni foam (NF) via a two-step hydrothermal process. As a binder-free electrode material, this unique hybrid structure exhibits excellent electrochemical properties, including an ultrahigh areal capacitance of 5.75 F cm-2 at a current density of 2 mA cm-2 and great cyclic stability without capacitance loss at a current density of 20 mA cm-2 after 10 000 cycles. Moreover, an all-solid-state asymmetric supercapacitor (AAS) based on a P-Ni(OH)2@MnO2 hybrid structure on Ni foam as the cathode and activated carbon (AC) as the anode is successfully assembled to enhance value the electrochemical properties. The AAS device also shows excellent electrochemical properties including a large potential window of 0~1.6 V, an areal capacitance is 911.3 mF cm-2 at a current density of 1 mA cm-2 and long-term cycling performance. Meanwhile, the AAS device also delivers a high energy density of 0.324 mW h cm-2 at a power density of 0.8 mW cm-2; and can easily light colorful light-emitting diode (LED) lights, suggesting that 3D P-Ni(OH)2@MnO2 hybrid composite has promising potential for practical use in high-performance supercapacitors. PMID- 29345705 TI - Contact mechanics for polydimethylsiloxane: from liquid to solid. AB - Adhesion between a glass ball and a polydimethylsiloxane (PDMS) sample is dependent on the PDMS cross-link density, and the transformation of the material from the uncrosslinked liquid state to the fully crosslinked solid state is investigated in this study. The physical picture reflected a gradual transition from capillary forces driven contact mechanics to the classical Johnson-Kendall Roberts (JKR)-type contact mechanics. PDMS was produced by mixing the base fluid and a cross-linker at a ratio of 10 : 1 and allowed to slowly cross-link at room temperature with simultaneous measurement of the ball-PDMS interaction force. The PDMS sample was in the liquid state during the first ~16 hours, and in this case the ball-PDMS interaction was purely adhesive, i.e., no repulsive interaction was observed. Later at the PDMS gel-point the cross-linked PDMS clusters percolate, converting the fluid into a soft (fluid-filled) poroelastic solid. In the transition period, PDMS appears similar to pressure-sensitive adhesives. There we observe so-called "stringing" and permanent deformation of the material impacted by the ball. At room temperature, it takes more than ~100 hours for PDMS to fully cross-link that can be confirmed by the comparison with the earlier-studied reference PDMS produced at elevated temperatures. PMID- 29345706 TI - Tuning the nucleophilicity of electron-rich diborane(4) compounds with bridging guanidinate substituents by substitution. AB - Diborane(4) compounds are versatile reagents in synthetic chemistry. Generally, diboranes(4) with sp2-hybridized boron atoms react as electrophiles. By contrast, the chemistry of nucleophilic diborane(4) compounds with two sp3-hybridized boron atoms is very much underdeveloped. In this work, we systematically vary the substituents of electron-rich diborane(4) compounds with bridging guanidinate substituents. In this way, five new diboranes are synthesized and fully characterized. Using quantum chemical computations, we show that the electronic properties and reactivity of these compounds can be rationally varied by the choice of substituents. The HOMO energies, adiabatic ionization energies and proton affinities are considered as parameters to compare the chemical properties of these unusual compounds. PMID- 29345709 TI - Chain conformation of poly(acrylic acid)-graft-poly(ethylene oxide)-graft-dodecyl in solution: an anomalous counter-ions condensation. AB - A dielectric spectroscopy study on a polyelectrolyte in aqueous solutions, which contains hydrophobic groups in part of the side chains poly(acrylic acid)-graft poly(ethylene oxide)-graft-dodecyl (PAA-g-PEO-g-dodecyl) is reported. A refined double layer polarization model was proposed to analyze the double dielectric relaxations in the dielectric spectra. Various electrical and structural parameters of the copolymers were obtained. Besides the crossover concentration, another turning point around 4 mg mL-1 was identified through the analysis of all the dielectrical parameters including dielectric increment, relaxation time and correlation length. According to the scaling relationship between the correlation length and concentration, a necklace-like structure was predicted. In addition, 4 mg mL-1 was proven to be the transition point between string-controlling with bead-controlling structure of the chains. In addition, the fraction of effective charges on the chains was illustrated by Ito's counter-ions fluctuation theory, as well as its linear dependence relationship with the zeta potential. Meanwhile, the counter-ions condensation behavior was consistent with the avalanche-like trend, which was predicted by theory for a hydrophobic polyelectrolyte with a necklace conformation. The results demonstrated that the electrostatic interactions were the main driving force of the necklace-like structure with pendant globules when the string-controlling structure was below 4 mg mL-1. While hydrophobic interactions are the main driving force of the structure of bead controlling above 4 mg mL-1. PMID- 29345707 TI - Synthesis and characterization of a photocleavable collagen-like peptide. AB - A 34-amino acid long collagen-like peptide rich in proline, hydroxyproline, and glycine, and with four photoreactive N-acyl-7-nitroindoline units incorporated into the peptide backbone was synthesized by on-resin fragment condensation. Its circular dichroism supports a stable triple helix structure. The built-in photochemical function enables the decomposition of the peptide into small peptide fragments by illumination with UV light of 350 nm in aqueous solution. Illumination of a thin film of the peptide, or a thin film of a photoreactive amino acid model compound containing a 5-bromo-7-nitroindoline moiety, with femtosecond laser light at 710 nm allows for the creation of well-resolved micropatterns. The cytocompatibility of the peptide was demonstrated using human mesenchymal stem cells and mouse embryonic fibroblasts. Our data show that the full-length peptide is cytocompatible as it can support cell growth and maintain cell viability. In contrast, the small peptide fragments created by photolysis are somewhat cytotoxic and therefore less cytocompatible. These data suggest that biomimetic collagen-like photoreactive peptides could potentially be used for growing cells in 2D micropatterns based on patterns generated by photolysis prior to cell growth. PMID- 29345708 TI - Triphenylstannyl((arylimino)methyl)benzoates with selective potency that induce G1 and G2/M cell cycle arrest and trigger apoptosis via ROS in human cervical cancer cells. AB - Metal complexes with organelle specificity and potent but selective cytotoxicity are highly desirable. A novel series of triphenylstannyl 4 ((arylimino)methyl)benzoates (2-8) were obtained by the reactions of triphenylstannyl 4-formylbenzoate [Ph3Sn(L1)] 1 with primary aromatic amines. Two representative compounds (10, 11) were also synthesized by reacting aqua triphenylstannyl 2-formylbenzoate [Ph3Sn(L9)(H2O)] (9) with aniline and p fluoroaniline, respectively. These compounds were characterized by elemental analysis, IR and 1H, 13C and 119Sn NMR spectroscopy, as well as single-crystal X ray diffraction for compounds 5, 7-11 and three pro-ligands. The in vitro cytotoxic activities of 1-11 were assessed using the MTT tetrazolium dye assay against HeLa (human cervical) and MDA-MB-231 (breast) cancer cells, with IC50 values revealing high activity. Compared to cisplatin, compounds 1-11 exhibited enhanced cytotoxic efficacy, indicating their potential as potent anticancer agents. Among these, 1 and 5 demonstrated maximum inhibition in HeLa cells, with negligible effect on normal human embryonic kidney (HEK) cells. The combined results of the DCFH-DA dye and Hoechst 33342/PI nuclear staining assays, along with flow cytometry analysis, show that they possess a dual mode of action: They induced apoptotic cell death, attributable to the tin-assisted generation of reactive oxygen species. Cell cycle analyses indicated that compounds 1 and 5 exhibit cell growth inhibition and may cause turbulences in the G1 and G2/M phases. PMID- 29345710 TI - Small degree of anisotropic wetting on self-similar hierarchical wrinkled surfaces. AB - We studied the wetting behavior of multiscale self-similar hierarchical wrinkled surfaces. The hierarchical surface was fabricated on poly(dimethylsiloxane) (PDMS) substrates by manipulating the sequential strain release and combined plasma/ultraviolet ozone (UVO) treatment. The generated structured surface shows an independently controlled dual-scale roughness with level-1 small-wavelength wrinkles (wavelength of 700-1500 nm and amplitude of 50-500 nm) resting on level 2 large-wavelength wrinkles (wavelength of 15-35 MUm and amplitude of 3.5-5 MUm), as well as accompanying orthogonal cracks. By tuning the aspect ratio of hierarchical wrinkles, the degree of wetting anisotropy in hierarchical wrinkled surfaces, defined as the contact angle difference between the parallel and perpendicular directions to the wrinkle grooves, is found to change between 3 degrees and 9 degrees . Through both experimental characterization (confocal fluorescence imaging) and theoretical analyses, we showed that the wetting state in the hierarchical wrinkled surface is in the Wenzel wetting state. We found that the measured apparent contact angle is larger than the theoretically predicted Wenzel contact angle, which is found to be attributed to the three phase contact line pinning effect of both wrinkles and cracks that generates energetic barriers during the contact line motion. This is evidenced by the observed sudden drop of over 20 degrees in the static contact angles along both perpendicular and parallel directions after slight vibration perturbation. Finally, we concluded that the observed small degree of wetting anisotropy in the hierarchical wrinkled surfaces mainly arises from the competition between orthogonal wrinkles and cracks in the contact line pinning. PMID- 29345711 TI - Direct access to spirobiisoxazoline via the double 1,3-dipolar cycloaddition of nitrile oxide with allenoate. AB - The double [3 + 2]-cycloadditions between nitrile oxides and allenoates have been achieved. In the presence of DABCO combined with Et3N, 2-substituted buta-2,3 dienoates reacted with oxime chlorides to afford spirobiisoxazolines in 55-90% yields via the double 1,3-dipolar cycloaddition. Notably, the construction of double isoxazoline moieties and two chiral centers including a spiro carbon center was achieved. PMID- 29345712 TI - The thiolation of pentafluorobenzene with disulfides by C-H, C-F bond activation and C-S bond formation. AB - A metal-free thiolation reaction between pentafluorobenzene and disulfides by C H, C-F bond activation and C-S bond formation is reported. Bisthiolated tetrafluorobenzene derivatives would be prepared in moderate to good yields from pentafluorobenzene and disulfides under mild conditions. A possible mechanism for the reaction was given. PMID- 29345713 TI - Synthetic and immunological studies on trimeric MUC1 immunodominant motif antigen based anti-cancer vaccine candidates. AB - Therapeutic vaccines have been regarded as a very promising treatment modality against cancer. Tumor-associated MUC1 is a promising antigen for the design of antitumor vaccines. However, body's immune tolerance and low immunogenicity of MUC1 glycopeptides limited their use as effective antigen epitopes of therapeutic vaccines. To solve this problem, we chose the immune dominant region of MUC1 VNTRs. We designed and synthesized its linear trivalent glycopeptide fragments and coupled the fragments with BSA. Immunological evaluation indicated that the antibodies induced by glycosylated MUC1 based vaccine 11 had a stronger binding than non-glycosylated 10. The novel constructed antigen epitopes have the potential to overcome the weak immunogenicity of natural MUC1 glycopeptides and deserve further research. PMID- 29345714 TI - From discrete to continuous description of spherical surface charge distributions. AB - The importance of electrostatic interactions in soft matter and biological systems can often be traced to non-uniform charge effects, which are commonly described using a multipole expansion of the corresponding charge distribution. The standard approach when extracting the charge distribution of a given system is to treat the constituent charges as points. This can, however, lead to an overestimation of multipole moments of high order, such as dipole, quadrupole, and higher moments. Focusing on distributions of charges located on a spherical surface - characteristic of numerous biological macromolecules, such as globular proteins and viral capsids, as well as of inverse patchy colloids - we develop a novel way of representing spherical surface charge distributions based on the von Mises-Fisher distribution. This approach takes into account the finite spatial extension of individual charges, and leads to a simple yet powerful way of describing surface charge distributions and their multipole expansions. In this manner, we analyze charge distributions and the derived multipole moments of a number of different spherical configurations of identical charges with various degrees of symmetry. We show how the number of charges, their size, and the geometry of their configuration influence the behavior and relative importance of multipole magnitudes of different order. Importantly, we clearly demonstrate how neglecting the effect of charge size leads to an overestimation of high-order multipoles. The results of our work can be applied to construct analytical models of electrostatic interactions and multipole expansion of charged particles in diverse soft matter and biological systems. PMID- 29345715 TI - Tendon - function-related structure, simple healing process and mysterious ageing. AB - Tendons are connective tissue structures of paramount importance to human ability of locomotion. The understanding of their physiology and pathology is gaining importance as advances in regenerative medicine are being made today. So far, very few studies were conducted to extend the knowledge about pathology, healing response and management of tendon lesions. In this paper we summarise actual knowledge on structure, process of healing and ageing of the tendons. The structure of tendon is optimised for the best performance of the tissue. Despite the simplicity of the healing response, numerous studies showed that the problems with full recovery are common and much more significant than we thought; that is why we discussed the issue of immobilisation and mechanical stimulation during healing process. The phenomenon of tendons' ageing is poorly understood. Although it seems to be a natural and painless process, it is completely different from degeneration in tendinopathy. Recent studies of biological treatment reported faster and optimal healing of the tendons when augmented by growth factors and stem cells. Despite advances in biology of tendons, management of their injuries is still a challenge for physicians; therefore, further studies are required to improve treatment outcomes. PMID- 29345716 TI - Endodontium - together or separately? AB - Endodontium, otherwise referred to as pulp-dentin complex or endodont. This term includes two tooth tissues: dentin and pulp, which constitute a structural and functional unity. These tissues have a huge, inseparable influence on each other the pulp (inter alia) nourishes the dentine, while the dentin forms a protective barrier for the pulp. They develop from the papillary tissue (Latin: papilladentis) from mesenchymal tissue. Nevertheless, in clinical practice this structural-functional complex is often treated as two separate tissues, and not as a whole. Adequate knowledge of the structure, function and protective mechanisms of the endodontium produces successful results in the treatment. The appropriate choice and application of the therapeutic methods and materials to the dentin secures vitality of both tissues of this complex. PMID- 29345717 TI - Vasoconstrictive responses of the cephalic vein during first-time cardiac implantable electronic device placement. AB - BACKGROUND: During cardiac implantable electronic device (CIED) implantation procedures cardiac leads have been mostly introduced transvenously. The associated injury to the selected vessel and adjacent tissues may induce reflex vasoconstriction. The aim of the study was to assess the incidence of cephalic vein (CV) vasoconstriction during first-time CIED implantation. MATERIALS AND METHODS: Of the 146 evaluated first-time CIED implantation procedures conducted in our centre in 2016, we selected those during which CV vasoconstriction was recorded. We focused on the stage of the procedure involving CV cutdown and/or axillary vein (AV)/subclavian vein (SV) puncture for lead insertion. Only cases documented via venography were considered. RESULTS: Vasoconstriction was observed in 11 patients (5 females and 6 males, mean age 59.0 +/- 21.2 years). The presence of this phenomenon affected the stage of CIED implantation involving cardiac lead insertion to the venous system, in severe cases, requiring a change of approach from CV cutdown to AV/SV puncture. The extent of vasoconstriction front propagation was limited to the nearest valves. Histological examinations of collected CV samples revealed an altered spatial arrangement of myocytes in the tunica media at the level of leaflet attachment. CONCLUSIONS: Cephalic vein vasoconstriction is a rare phenomenon associated with accessing the venous system during first-time CIED implantation. The propagation of CV constriction was limited by the location of the nearest valves. PMID- 29345718 TI - Evaluation of the morphological characteristic and sex differences of sternum by multi-detector computed tomography. AB - BACKGROUND: Sternum is one of the skeleton parts which have frequently congenital anomalies and variations are commonly used by researchers in determining sex. We evaluated the morphological characteristics and sex-related changes of the sternum in adult individuals using multidetector computed tomography in our study. MATERIALS AND METHODS: Two hundred adults (103 female and 97 male) aged between 18 and 87 years were evaluated. Utilising the morphological characteristics of the sternum based on the multislice images; length, width and the thickness of manubrium, length, width and the thickness of corpus sterni, total length of sternum, sternal angle, sternal index (SI), length of the xiphoid process, the thickness of xiphoid process, the number of indents of xiphoid process were measured and a total of 20 parameters were evaluated by adding age, height and weight to these variables. RESULTS: The mean length of the manubrium, the length of corpus sterni, the length of total sternum, SI, sternal angle were found in females 46.7 +/- 5.1, 86.6 +/- 9.7, 133.1 +/- 1.1, 54.47 +/- 10.0 and 163.75 +/- 5.79; in males 51.2 +/- 6,102.4 +/- 13.3, 154.1 +/- 13.1, 50.11 +/- 10.02 and 162.21 +/- 6.17, respectively. We found that Hyrtl's Law and SI did not provide adequate accuracy for sex determination in our patients. It has been detected that the length of the manubrium alone is not helpful for individual samples. Total length of the sternum was found to be more reliable than the length of the manubrium and the length of corpus sterni. We determined sternal cleft and sternal foramen as 0.5% and 3.5%, respectively. CONCLUSIONS: We suggest that the morphometric standards cannot be universally applied and can demonstrate individual differences. The standard rules must be implemented for every population. PMID- 29345719 TI - An anatomical variant: evaluation of accessory canals of the canalis sinuosus using cone beam computed tomography. AB - BACKGROUND: The anatomical variation of the anterior superior alveolar nerve described as canalis sinuosus (CS) is a less known structure of anterior maxilla. Due to the fact that it contains anterior superior alveolar nerve as well as veins and arteries, exact localisation of this structure will allow surgeons to avoid complications. Hence, the aim of this study was to verify the presence, reveal the frequency and characteristics of accessory canals of CS. MATERIALS AND METHODS: This study was based on retrospective evaluation of cone beam computed tomography (CBCT) scans. A total of 1460 CBCT images were analysed and collected data were noted. The following parameters were recorded: age, sex, presence or absence of CS, location in relation to the adjacent teeth and impaction of canine teeth. RESULTS: A total of 6668 accessory canals were found in 1460 CBCT images. Of these, 672 (46.0%) were from female patients, and 788 (54.0%) were from male patients. 1034 (70.8%) of 1460 images had at least one accessory canal of CS. Maxillary intercentral region is the area where accessory canals were seen most frequently (n = 653, 44.72%). CONCLUSIONS: Canalis sinuosus is a bony canal which is incidentally found and less known structure of anterior portion of maxilla. Knowing the accessory canals deriving from this structure will allow surgeons to avoid complications and non-integration after dental implant procedures. Conventional imaging modalities have limited value in detecting this neurovascular structures. Therefore CBCT may have an important role for accurate diagnosis to reveal anatomical variations. PMID- 29345720 TI - Effects of nicotine administration in rats on MMP2 and VEGF levels in periodontal membrane. AB - BACKGROUND: Nicotine is associated with increased incidence of periodontal disease and poor response to therapy. This article aimed at identifying the expression of matrix metalloproteinases 2 (MMPs2) and vascular endothelial growth factor (VEGF) proteins on extracellular matrix, fibrous distribution and angiogenetic development in periodontitis caused by nicotine effects on periodontal membrane. MATERIALS AND METHODS: In this experimental study, rats were divided into nicotine and control groups. While the rats in the nicotine group (n = 6) were administered 2 mg/kg nicotine sulphate for 28 days, the animals in the control group (n = 6) were only administered 1.5 mL physiologic saline solution subcutaneously for 28 days. RESULTS: Histological sections were prepared and immunohistochemically stained for MMP2 and VEGF. The sections stained with Trichrome-Masson were observed under light microscope. VEGF and MMP2 immunoreactivity of periodontal gingiva and dentin was assessed by immunohistochemical staining. CONCLUSIONS: Nicotine reduces MMP production, disrupts collagen synthesis and causes periodontitis. We observed that nicotine increases periodontitis by disrupting periodontal membrane and prevents tooth to anchor in dental alveoli by disrupting epithelial structure. PMID- 29345721 TI - Sectioned images and surface models of a cadaver head with reference to botulinum neurotoxin injection. AB - BACKGROUND: The aim of this study is to elucidate the anatomical considerations with reference to botulinum neurotoxin type A (BTX) injection, on sectioned images and surface models, using Visible Korean. These can be used for medical education and clinical training in the field of facial surgery. MATERIALS AND METHODS: Serially sectioned images of the head were obtained from a cadaver. Significant anatomic structures in the sectioned images were outlined and assembled to create a surface model. RESULTS: The PDF file (27.8 MB) of the stacked models can be accessed for free. The file can also be obtained from the authors by email. Using this file, important anatomical structures associated with the BTX injection can be investigated in the sectioned images. All surface models and stereoscopic structures related with the BTX injection are described in real time. CONCLUSIONS: We hope that these state-of-the-art sectioned images, outlined images, and surface models will assist students and trainees in acquiring a better understanding of the anatomy associated with the BTX injection. PMID- 29345722 TI - Morphometric properties of the tensor fascia lata muscle in human foetuses. AB - BACKGROUND: In neonatal and early childhood surgeries such as meningomyelocele repairs, closing deep wounds and oncological treatment, tensor fasciae lata (TFL) flaps are used. However, there are not enough data about structural properties of TFL in foetuses, which can be considered as the closest to neonates in terms of sampling. This study's main objective is to gather data about morphological structures of TFL in human foetuses to be used in newborn surgery. MATERIALS AND METHODS: Fifty formalin-fixed foetuses (24 male, 26 female) with gestational age ranging from 18 to 30 weeks (mean 22.94 +/- 3.23 weeks) were included in the study. TFL samples were obtained by bilateral dissection and then surface area, width and length parameters were recorded. Digital callipers were used for length and width measurements whereas surface area was calculated using digital image analysis software. RESULTS: No statistically significant differences were found in terms of numerical value of parameters between sides and sexes (p > 0.05). Linear functions for TFL surface area, width, anterior and posterior margin lengths were calculated as y = -225.652 + 14.417 * age (weeks), y = -5.571 + 0.595 * age (weeks), y = -4.276 + 0.909 * age (weeks), and y = -4.468 + 0.779 * age (weeks), respectively. CONCLUSIONS: Linear functions for TFL surface area, width and lengths can be used in designing TFL flap dimensions in newborn surgery. In addition, using those described linear functions can also be beneficial in prediction of TFL flap dimensions in autopsy studies. PMID- 29345723 TI - Anatomical characteristics of the lingual foramen in ancient skulls: a cone beam computed tomography study in an Anatolian population. AB - BACKGROUND: The purpose of this study is to evaluate the anatomical features of lingual foramina and their bony canals in Anatolian ancient mandibles (9-10th century) by using cone beam computed tomography (CBCT). MATERIALS AND METHODS: Fifty-eight ancient dry mandibles were scanned with CBCT. Lingual foramina were grouped into midline, paramedian, posterior foramina and combination of these groups. Midline group was also classified according to internal surface of the mandible (gonial tubercles [GTs]). The incidence, vertical distance and diameter of lingual foramina were measured according to age groups and gender. RESULTS: The incidence of the lingual foramen was 96.6%. Midline of the symphysis had the highest incidence (34.4%) of foramina (p < 0.05), followed by both midline and paramedian type (32.8%; p < 0.05). Classification in terms of GT represented class 3 as the most encountered group (28.6%). Number of foramina observed in the mandibles ranged from 0 to 6 with the incidence of 3.4% and 32.8%, respectively. The male and < 35 years groups presented larger measurement values in midline region (p < 0.05). CONCLUSIONS: Mandibular lingual foramina and bony canals are frequently present in ancient mandibles. When compared with modern subjects, similar findings are observed according to published literatures. CBCT is also proved to be an effective imaging modality in the detection of lingual foramina and canals in anthropological studies. PMID- 29345724 TI - Effects of Cognitive Training on Cognition and Quality of Life of Older Persons with Dementia. AB - OBJECTIVES: To evaluate the effect of cognitive training on cognition and health related quality of life (HRQoL) in community-dwelling persons with dementia. DESIGN: Single-blind randomized controlled trial with 3- and 9-month follow-up. SETTING: Adult day care centers in Helsinki, Finland. PARTICIPANTS: Older individuals with mild to moderate dementia living at home and attending adult day care twice a week (N = 147; mean age 83, 72% female, 63% at mild stage of dementia). INTERVENTION: A systematic 12-week training program focused on subskills of executive function: attention, working memory, cognitive flexibility, and planning. The intervention group (n = 76) underwent cognitive training twice a week for 45 minutes, and the control group (n = 71) attended day care as usual. MEASUREMENTS: Primary outcomes were the Alzheimer's Disease Assessment Scale-Cognitive subscale (ADAS-Cog) for global cognition and the 15 dimensional instrument (15D) for HRQoL. The outcomes were measured at baseline and 3 and 9 months. RESULTS: Both groups deteriorated in global cognition and HRQoL during follow-up, and there were no differences between the two groups in change on the ADAS-Cog (P = .43) or 15D (P = .61) over time (adjusted for age and sex). At 3 months, changes were 0.8 (95% confidence interval (CI) = -0.2-1.8) for the intervention group and 1.7 (95% CI = 0.6-2.7) for the control group on the ADAS-Cog and -0.040 (95% CI = -0.058 to -0.021) for the intervention group and 0.037 (95% CI = -0.056 to -0.018) for the control group on the 15D. CONCLUSION: Systematic cognitive training had no effect on global cognition or HRQoL in community-living persons with mild to moderate dementia. PMID- 29345726 TI - ? PMID- 29345725 TI - Polyols and UV-sunscreens in the Prasiola-clade (Trebouxiophyceae, Chlorophyta) as metabolites for stress response and chemotaxonomy. AB - In many regions of the world, aeroterrestrial green algae of the Trebouxiophyceae (Chlorophyta) represent very abundant soil microorganisms, and hence their taxonomy is crucial to investigate their physiological performance and ecological importance. Due to a lack in morphological features, taxonomic and phylogenetic studies of Trebouxiophycean algae can be a challenging task. Since chemotaxonomic markers could be a great assistance in this regard, 22 strains of aeroterrestrial Trebouxiophyceae were chemically screened for their polyol-patterns as well as for mycosporine-like amino acids (MAAs) in their aqueous extracts using RP-HPLC and LC-MS. d-sorbitol was exclusively detected in members of the Prasiolaceae family. The novel MAA prasiolin and a related compound ("prasiolin-like") were present in all investigated members of the Prasiola-clade, but missing in all other tested Trebouxiophyceae. While prasiolin could only be detected in field material directly after extraction, the "prasiolin-like" compound present in the other algae was fully converted into prasiolin after 24 h. These findings suggest d-sorbitol and prasiolin-like compounds are suitable chemotaxonomic markers for the Prasiolaceae and Prasiola-clade, respectively. Additional UV-exposure experiments with selected strains show that MAA formation and accumulation can be induced, supporting their role as UV-sunscreen. PMID- 29345727 TI - The Petal Project: An innovation in sexual healthcare and education for Kenyan schoolgirl. AB - In the western province of Nyanza in Kenya, girls and women face an issue all too common in the developing world-little or no access to affordable means to effectively managing their menstrual flow. As a result, many stay at home or drop out of school because they are teased and embarrassed. Some approach men for money to buy pads and are forced, in return, to engage in transactional sex. The girls may not be able to return to school at all due to pregnancy. The story literally and figuratively continues to cycle, keeping girls in positions of dependency and poverty. In May 2011, two visiting nursing faculty conducting health clinics with students, were approached by a young male school volunteer who shared his observations and unease with what he saw happening. Concerns shared that day spawned an initiative known as the Petal Project, which has yielded thousands of starter kits hand-sewn and delivered to girls in Kenya. The Petal Project has grown in popularity and participation on their college campus and in neighboring communities. Since its inception, this initiative has expanded to include over six countries and has positively impacted the lives of hundreds of givers and receivers. PMID- 29345728 TI - Analytical performance of the ThyroSeq v3 genomic classifier for cancer diagnosis in thyroid nodules. AB - BACKGROUND: Molecular tests have clinical utility for thyroid nodules with indeterminate fine-needle aspiration (FNA) cytology, although their performance requires further improvement. This study evaluated the analytical performance of the newly created ThyroSeq v3 test. METHODS: ThyroSeq v3 is a DNA- and RNA-based next-generation sequencing assay that analyzes 112 genes for a variety of genetic alterations, including point mutations, insertions/deletions, gene fusions, copy number alterations, and abnormal gene expression, and it uses a genomic classifier (GC) to separate malignant lesions from benign lesions. It was validated in 238 tissue samples and 175 FNA samples with known surgical follow up. Analytical performance studies were conducted. RESULTS: In the training tissue set of samples, ThyroSeq GC detected more than 100 genetic alterations, including BRAF, RAS, TERT, and DICER1 mutations, NTRK1/3, BRAF, and RET fusions, 22q loss, and gene expression alterations. GC cutoffs were established to distinguish cancer from benign nodules with 93.9% sensitivity, 89.4% specificity, and 92.1% accuracy. This correctly classified most papillary, follicular, and Hurthle cell lesions, medullary thyroid carcinomas, and parathyroid lesions. In the FNA validation set, the GC sensitivity was 98.0%, the specificity was 81.8%, and the accuracy was 90.9%. Analytical accuracy studies demonstrated a minimal required nucleic acid input of 2.5 ng, a 12% minimal acceptable tumor content, and reproducible test results under variable stress conditions. CONCLUSIONS: The ThyroSeq v3 GC analyzes 5 different classes of molecular alterations and provides high accuracy for detecting all common types of thyroid cancer and parathyroid lesions. The analytical sensitivity, specificity, and robustness of the test have been successfully validated and indicate its suitability for clinical use. Cancer 2018;124:1682-90. (c) 2018 American Cancer Society. PMID- 29345729 TI - Sinus node dysfunction after heart transplantation-An analysis of risk factors and atrial pacing burden. AB - INTRODUCTION: We investigated the development of sinus node dysfunction (SND) requiring pacemaker implantation after heart transplant (HTx) especially regarding pacing burden in these patients. PATIENTS AND METHODS: Patients requiring a pacemaker for SND were compared to all other patients in an HTx cohort including transplant patients from 1981 to 2016. RESULTS: Sinus node dysfunction requiring pacemaker implantation developed in 118 patients (10%). These patients had received a biatrial anastomosis more frequently than those in the No SND group 95.8% vs 90.0% (P = .042). The ratio of reperfusion time to aortic cross-clamp time was significantly smaller in the SND group compared to the No SND group 71.7% vs 80.3% (P = .033). This also holds for the ratio of reperfusion time to ischemia time, which was 23.2% and 28.6%, respectively (P = .032). Pacing burden decreased from 90.5% to 66.3% after 2 years and remained around this value in the remaining 4 years of follow-up. CONCLUSION: We identified the biatrial anastomosis and a low ratio of reperfusion time to aortic cross-clamp time as well as to ischemia time as risk factors for SND requiring pacing. After implantation pacemakers continue to pace for over 60% of the time after 6 years. PMID- 29345730 TI - Regional pattern of microgliosis in sporadic Creutzfeldt-Jakob disease in relation to phenotypic variants and disease progression. AB - AIMS: The aim of this study was to describe the regional profiles of microglial activation in sporadic Creutzfeldt-Jakob disease (sCJD) subtypes and analyse the influence of prion strain, disease duration and codon 129 genotype. METHODS: We studied the amount/severity and distribution of activated microglia, protease resistant prion protein (PrPSc ) spongiform change, and astrogliosis in eight regions of 57 brains, representative of the entire spectrum of sCJD subtypes. RESULTS: In each individual subtype, the regional extent and distribution of microgliosis significantly correlated with PrPSc deposition and spongiform change, leading to subtype-specific 'lesion profiles'. However, large differences in the ratio between PrPSc load or the score of spongiform change and microglial activation were seen among disease subtypes. Most significantly, atypical sCJD subtypes such as VV1 and MM2T showed a degree of microglial activation comparable to other disease variants despite the relatively low PrPSc deposition and the less severe spongiform change. Moreover, the mean microglial total load was significantly higher in subtype MM1 than in MM2C, whereas the opposite was true for the PrPSc and spongiform change total loads. Finally, some sCJD subtypes showed distinctive regional cerebellar profiles of microgliosis characterized by a high granular/molecular layer ratio (MV2K) and/or a predominant involvement of white matter (MVK and MM2T). CONCLUSIONS: Microglial activation is an early event in sCJD pathogenesis and is strongly influenced by prion strain, PRNP codon 129 genotype and disease duration. Microglial lesion profiling, by highlighting strain-specific properties of prions, contributes to prion strain characterization and classification of human prion diseases, and represents a valid support to molecular and histopathologic typing. PMID- 29345731 TI - Student evaluations of teaching (SET): Guidelines for their use. AB - Student evaluations of teaching (SET) provide a structured way of collecting feedback from students about the course and teacher's effectiveness. We reviewed literature describing use of SET across a broad range of disciplines in undergraduate and graduate education to provide guidelines for faculty in using SET in a nursing or other health professions program. On SET tools, students typically rate their satisfaction with a course and perceptions about the quality of the teaching. It is important to evaluate SET tools prior to their use including pilot testing tools with students because studies show students may not interpret items or questions on a SET tool as faculty intended. Common uses of the evaluation data from SET include improvement of courses and teaching, and for personnel decisions. PMID- 29345732 TI - Near Visual Impairment Incidence in Relation to Diabetes in Older People: The Three-Cities Study. AB - OBJECTIVES: To characterize the relationship between diabetes mellitus (DM) and future risk of near vision impairment (VI) in a community-dwelling population of older people. DESIGN: Seven-year population-based longitudinal study. SETTING: Three-Cities Study, a French prospective study designed to assess the risk of cognitive and functional decline attributable to vascular factors. PARTICIPANTS: Community-dwelling individuals aged 65 and older (N = 8,412). MEASUREMENTS: DM was determined at baseline according to self-reported DM, antidiabetic treatment, and fasting blood glucose. Near visual acuity was measured at baseline and 2, 4, and 7 years later. Near VI was defined as a Snellen score greater than 20/30. RESULTS: DM was associated with a higher risk of near VI in an adjusted model (hazard ratio (HR) = 1.24, 95% confidence interval (CI) = 1.02-1.52, P = .03). Because of an interaction between Body Mass Index (BMI) and diagnosed DM, the longitudinal analyses were stratified according to BMI category. DM was associated with greater risk of near VI only in underweight (BMI <21.0 kg/m2 , HR = 2.89, 95% CI = 1.18-7.03) and normal-weight (BMI 21.0-24.9 kg/m2 , HR = 1.60, 95% CI = 1.10-2.32), but not overweight (P = .69) and obese (P = .09) subjects. CONCLUSION: DM is a risk factor for near VI in older people, particularly in those with a low or normal BMI. This risk profile should be taken into account in older adults to support their independence. PMID- 29345733 TI - Putative mechanisms of cognitive decline with implications for clinical research and practice. AB - Multiple intrinsic and extrinsic mechanisms contribute to vulnerability of cognitive decline and nurses play a significant role in assisting individuals and families to use strategies for healthy cognitive aging. The objective of this narrative review is to provide a synthesis of the intrinsic and extrinsic mechanisms of cognitive decline and conditions that are associated with cognitive decline. Well-established intrinsic mechanisms of cognitive decline include aging, apolipoprotein E (APOE) epsilon4 carrier status, SORL1 mutations, neuroinflammation, mitochondrial dysfunction, amyloid deposition, and demyelination. Extrinsic risk factors include obesity, diabetes, hypertension, elevated lipid panel, metabolic syndrome, depression, traumatic brain injury, substance use, heart failure, and stroke. The various definitions of cognitive decline as well as the intrinsic and extrinsic factors that impact cognition as humans age should be incorporated in future clinical research studies. Nurses may use this information to help patients make lifestyle choices regarding cognitive health. PMID- 29345734 TI - Glove port path for transanal resection of rectal lesion - a video vignette. PMID- 29345735 TI - Landscape simplification reduces classical biological control and crop yield. AB - Agricultural intensification resulting in the simplification of agricultural landscapes is known to negatively impact the delivery of key ecosystem services such as the biological control of crop pests. Both conservation and classical biological control may be influenced by the landscape context in which they are deployed; yet studies examining the role of landscape structure in the establishment and success of introduced natural enemies and their interactions with native communities are lacking. In this study, we investigated the relationship between landscape simplification, classical and conservation biological control services and importantly, the outcome of these interactions for crop yield. We showed that agricultural simplification at the landscape scale is associated with an overall reduction in parasitism rates of crop pests. Additionally, only introduced parasitoids were identified, and no native parasitoids were found in crop habitat, irrespective of agricultural landscape simplification. Pest densities in the crop were lower in landscapes with greater proportions of semi-natural habitats. Furthermore, farms with less semi-natural cover in the landscape and consequently, higher pest numbers, had lower yields than farms in less agriculturally dominated landscapes. Our study demonstrates the importance of landscape scale agricultural simplification in mediating the success of biological control programs and highlights the potential risks to native natural enemies in classical biological control programs against native insects. Our results represent an important contribution to an understanding of the landscape-mediated impacts on crop yield that will be essential to implementing effective policies that simultaneously conserve biodiversity and ecosystem services. PMID- 29345736 TI - Palbociclib in combination with letrozole as first-line treatment for advanced breast cancer: A Japanese phase II study. AB - This single-arm, open-label, phase II study in 42 Japanese postmenopausal patients with estrogen receptor-positive/human epidermal growth factor receptor 2 negative (ER+/HER2-) advanced breast cancer evaluated the efficacy, safety, and pharmacokinetics of first-line palbociclib (125 mg once daily, 3 weeks on/1 week off) coadministered with letrozole (2.5 mg once daily). Primary endpoint of investigator-assessed 1-year progression-free survival (PFS) probability was 75.0% (90% CI, 61.3%-84.4%), far surpassing the 40% lower limit of the 90% CI supporting efficacy. Median duration of treatment was 438 days. Among secondary efficacy measures, median PFS was not reached (95% CI, 16.7: not estimable), 17/42 patients (40.5%) had an objective response, 36/42 (85.7%) maintained disease control, and 27/42 (64.3%) remained in follow-up. Median overall survival was not reached, and 1-year survival probability was 92.9% (95% CI, 79.5%-97.6%). Results of intensive pharmacokinetics in a subset of 6 patients showed palbociclib steady-state mean area under the plasma concentration-time curve over the dosing interval [tau] and mean maximum plasma concentration were 1979 ng.h/mL and 124.7 ng/mL, respectively. For day 15 plasma samples from cycles 1 and 2, geometric mean of the within-patient mean trough concentration was 90.1 ng/mL. The most common treatment-related adverse events were neutropenia (100%) and stomatitis (73.8%). There was 1 case of treatment-related febrile neutropenia. Toxicities were generally tolerated and manageable by dose modifications and/or medical care. Efficacy and safety of first-line palbociclib plus letrozole therapy is supported in Japanese postmenopausal patients with treatment-naive ER+/HER2- advanced breast cancer. PMID- 29345738 TI - Elucidation of the Oxygen Reduction Volcano in Alkaline Media using a Copper Platinum(111) Alloy. AB - The relationship between the binding of the reaction intermediates and oxygen reduction activity in alkaline media was experimentally explored. By introducing Cu into the 2nd surface layer of a Pt(111) single crystal, the surface reactivity was tuned. In both 0.1 m NaOH and 0.1 m KOH, the optimal catalyst should exhibit OH binding circa 0.1 eV weaker than Pt(111), via a Sabatier volcano; this observation suggests that the reaction is mediated via the same surface bound intermediates as in acid, in contrast to previous reports. In 0.1 m KOH, the alloy catalyst at the peak of the volcano exhibits a maximum activity of 101+/-8 mA cm-2 at 0.9 V vs. a reversible hydrogen electrode (RHE). This activity constitutes a circa 60-fold increase over Pt(111) in 0.1 m HClO4 . PMID- 29345739 TI - Exact Mapping from Many-Spin Hamiltonians to Giant-Spin Hamiltonians. AB - Thermodynamic and spectroscopic data of exchange-coupled molecular spin clusters (e.g. single-molecule magnets) are routinely interpreted in terms of two different models: the many-spin Hamiltonian (MSH) explicitly considers couplings between individual spin centers, while the giant-spin Hamiltonian (GSH) treats the system as a single collective spin. When isotropic exchange coupling is weak, the physical compatibility between both spin Hamiltonian models becomes a serious concern, due to mixing of spin multiplets by local zero-field splitting (ZFS) interactions ('S-mixing'). Until now, this effect, which makes the mapping MSH >GSH ('spin projection') non-trivial, had only been treated perturbationally (up to third order), with obvious limitations. Here, based on exact diagonalization of the MSH, canonical effective Hamiltonian theory is applied to construct a GSH that exactly matches the energies of the relevant (2S+1) states comprising an effective spin multiplet. For comparison, a recently developed strategy for the unique derivation of effective ('pseudospin') Hamiltonians, now routinely employed in ab initio calculations of mononuclear systems, is adapted to the problem of spin projection. Expansion of the zero-field Hamiltonian and the magnetic moment in terms of irreducible tensor operators (or Stevens operators) yields terms of all ranks k (up to k=2S) in the effective spin. Calculations employing published MSH parameters illustrate exact spin projection for the well investigated [Ni(hmp)(dmb)Cl]4 ('Ni4 ') single-molecule magnet, which displays weak isotropic exchange (dmb=3,3-dimethyl-1-butanol, hmp- is the anion of 2 hydroxymethylpyridine). The performance of the resulting GSH in finite field is assessed in terms of EPR resonances and diabolical points. The large tunnel splitting in the M=+/- 4 ground doublet of the S=4 multiplet, responsible for fast tunneling in Ni4 , is attributed to a Stevens operator with eightfold rotational symmetry, marking the first quantification of a k=8 term in a spin cluster. The unique and exact mapping MSH->GSH should be of general importance for weakly-coupled systems; it represents a mandatory ultimate step for comparing theoretical predictions (e.g. from quantum-chemical calculations) to ZFS, hyperfine or g-tensors from spectral fittings. PMID- 29345737 TI - Present status and future perspective of peptide-based vaccine therapy for urological cancer. AB - Use of peptide-based vaccines as therapeutics aims to elicit immune responses through antigenic epitopes derived from tumor antigens. Peptide-based vaccines are easily synthesized and lack significant side-effects when given in vivo. Peptide-based vaccine therapy against several cancers including urological cancers has made progress for several decades, but there is no worldwide approved peptide vaccine. Peptide vaccines were also shown to induce a high frequency of immune response in patients accompanied by clinical efficacy. These data are discussed in light of the recent progression of immunotherapy caused by the addition of immune checkpoint inhibitors thus providing a general picture of the potential therapeutic efficacy of peptide-based vaccines and their combination with other biological agents. In this review, we discuss the mechanism of the antitumor effect of peptide-based vaccine therapy, development of our peptide vaccine, recent clinical trials using peptide vaccines for urological cancers, and perspectives of peptide-based vaccine therapy. PMID- 29345740 TI - Accurate Etiological Diagnosis of Dementia Contributes to Better Clinical Care. PMID- 29345741 TI - Geriatric Syndromes, Dementia Subtypes, Gizmo Idolatry. PMID- 29345742 TI - Cognitive Training for Older Adults: What Works? PMID- 29345743 TI - Refining mortality estimates in shark demographic analyses: a Bayesian inverse matrix approach. AB - Leslie matrix models are an important analysis tool in conservation biology that are applied to a diversity of taxa. The standard approach estimates the finite rate of population growth (lambda) from a set of vital rates. In some instances, an estimate of lambda is available, but the vital rates are poorly understood and can be solved for using an inverse matrix approach. However, these approaches are rarely attempted due to prerequisites of information on the structure of age or stage classes. This study addressed this issue by using a combination of Monte Carlo simulations and the sample-importance-resampling (SIR) algorithm to solve the inverse matrix problem without data on population structure. This approach was applied to the grey reef shark (Carcharhinus amblyrhynchos) from the Great Barrier Reef (GBR) in Australia to determine the demography of this population. Additionally, these outputs were applied to another heavily fished population from Papua New Guinea (PNG) that requires estimates of lambda for fisheries management. The SIR analysis determined that natural mortality (M) and total mortality (Z) based on indirect methods have previously been overestimated for C. amblyrhynchos, leading to an underestimated lambda. Updated distributions of Z and lambda were produced for the GBR population and corrected obvious error in the demographic parameters for the PNG population. This approach provides opportunity for the inverse matrix approach to be applied more broadly to situations where information on population structure is lacking. PMID- 29345744 TI - Land surveys show regional variability of historical fire regimes and dry forest structure of the western United States. AB - An understanding of how historical fire and structure in dry forests (ponderosa pine, dry mixed conifer) varied across the western United States remains incomplete. Yet, fire strongly affects ecosystem services, and forest restoration programs are underway. We used General Land Office survey reconstructions from the late 1800s across 11 landscapes covering ~1.9 million ha in four states to analyze spatial variation in fire regimes and forest structure. We first synthesized the state of validation of our methods using 20 modern validations, 53 historical cross-validations, and corroborating evidence. These show our method creates accurate reconstructions with low errors. One independent modern test reported high error, but did not replicate our method and made many calculation errors. Using reconstructed parameters of historical fire regimes and forest structure from our validated methods, forests were found to be non-uniform across the 11 landscapes, but grouped together in three geographical areas. Each had a mixture of fire severities, but dominated by low-severity fire and low median tree density in Arizona, mixed-severity fire and intermediate to high median tree density in Oregon-California, and high-severity fire and intermediate median tree density in Colorado. Programs to restore fire and forest structure could benefit from regional frameworks, rather than one size fits all. PMID- 29345745 TI - Comparison of Flow Cytometric Methods for the Enumeration of Residual Leucocytes in Leucoreduced Blood Products: A Multicenter Study. AB - The BD FACSViaTM System features novel designs in hardware, software, and instrument QC. We compared the performance of the BD FACSVia System using the BD LeucocountTM kit with the BD FACSCaliburTM flow cytometer. Leucoreduced platelet (PLT, n = 252) and red blood cell (RBC, n = 278) specimens were enrolled at four sites. Each specimen was stained in four tubes using the BD Leucocount kit reagents and acquired on the two systems. BD Leucocount Control cells (high and low) were used to evaluate the inter-site reproducibility on the BD FACSVia System at three sites over 20 days. Deming regression and Bland-Altman analysis were performed to determine the WBC absolute counts on the BD FACSVia System vs. the BD FACSCalibur system. Assay accuracy for the range of 0-350 WBCs/ul was adequate. For samples with <25 WBCs/ul, the bias with 95% limits of agreement was 0.136 (-1.897 to 2.169) WBC/ul for PLTs (n = 184) and 0.170 (-2.025 to 2.365) WBC/ul for RBCs (n = 193). For inter-site reproducibility, the CV% was 6.46% (upper 95% CI 7.16%) for the PLT high control and 9.49% (10.52%) for the PLT low control. The CV% was 7.51% (8.32%) for the RBC high control and 10.76% (11.92%) for the RBC low control. The BD FACSVia System reported equivalent results of WBC absolute counts for leucoreduced PLT and RBC samples compared to the BD FACSCalibur system. The inter-laboratory reproducibility of the BD FACSVia System met study specifications. (c) 2018 The Authors. Cytometry Part A Published by Wiley Periodicals, Inc. on behalf of ISAC. PMID- 29345747 TI - Recurrent IgA nephropathy after renal transplantation and steroid withdrawal. AB - Immunoglobulin A nephropathy (IgAN) is the most common primary glomerulonephritis; the reported recurrence rate of IgAN after renal transplantation is as high as 13%-50%. The impact of immunosuppressive therapy and steroid withdrawal on the risk of recurrence of IgAN is still under debate. We performed a retrospective single-center study, selecting 123 kidney transplants (rtx) in 120 patients, between January 1995 and December 2012, with IgAN on the native kidney. In 51 of 123 transplants, at least one post transplantation biopsy for clinical indication was performed; in 28 of 51 transplants, IgAN recurrence (IgANr) was demonstrated. This group (G1; N = 28) was compared with a group without IgANr (G2; N = 23). In our study, clinically evident IgANr rate was 54.9% (28/51) on biopsied patients. At discharge, the use of the immunosuppressant drugs (tacrolimus, cyclosporine A, mycophenolate mofetil, azathioprine, mTor inhibitors) was not associated with an increased risk of IgANr (P = NS). At discharge, all patients were steroid treated. Neither the use of tacrolimus, mycophenolate mofetil, nor mTor inhibitors (mTori) at biopsy time were associated with IgANr. However, IgANr was significantly higher in patients who experienced steroid withdrawal at any post-transplantation time (OR 7.7 P = .03). The median time to recurrence after steroid withdrawal was 59 months (min 4.18, max 113.2). PMID- 29345748 TI - Kudingcha and Fuzhuan Brick Tea Prevent Obesity and Modulate Gut Microbiota in High-Fat Diet Fed Mice. AB - SCOPE: Kudingcha (KDC) from Ilex kudingcha and Fuzhuan brick tea (FBT) are popular beverages in China, and their preventive and therapeutic roles in metabolic disorders have been reported. However, the relationship between the gut microbiota modulatory effects of KDC and FBT and prevention of obesity is still not clearly understood. METHODS AND RESULTS: KDC and FBT are tested individually for their capacities to prevent obesity and modulate the gut microbiota in high fat diet (HFD) fed C57BL/6J mice. The results show that both KDC and FBT supplementation could modulate oxidative injury, inflammation, lipid metabolism, and reduce HFD induced obesity significantly. Both KDC and FBT could enhance the diversity of gut microbiota. KDC could reduce the relative abundance of Erysipelotrichaceae, while FBT could reduce the ratio of Firmicutes to Bacteroidetes and enhance the relative abundance of Bifidobacteriaceae. CONCLUSION: These findings suggest that KDC and FBT could attenuate features of the metabolic syndrome in HFD-fed mice, which might be due to the modulation of gut microbiota by KDC and FBT. PMID- 29345746 TI - History of genome editing in yeast. AB - For thousands of years humans have used the budding yeast Saccharomyces cerevisiae for the production of bread and alcohol; however, in the last 30-40 years our understanding of the yeast biology has dramatically increased, enabling us to modify its genome. Although S. cerevisiae has been the main focus of many research groups, other non-conventional yeasts have also been studied and exploited for biotechnological purposes. Our experiments and knowledge have evolved from recombination to high-throughput PCR-based transformations to highly accurate CRISPR methods in order to alter yeast traits for either research or industrial purposes. Since the release of the genome sequence of S. cerevisiae in 1996, the precise and targeted genome editing has increased significantly. In this 'Budding topic' we discuss the significant developments of genome editing in yeast, mainly focusing on Cre-loxP mediated recombination, delitto perfetto and CRISPR/Cas. PMID- 29345749 TI - Self-production of oxygen system CaO2 /MnO2 @PDA-MB for the photodynamic therapy research and switch-control tumor cell imaging. AB - Photodynamic therapy (PDT) holds promise in biochemical study and tumor treatment. A novel multifunctional nanosystem CaO2 /MnO2 @polydopamine (PDA) methylene blue (MB) nanosheet (CMP-MB) was designed. CaO2 nanoparticles were encapsulated by MnO2 nanosheet, and then PDA was coated on the surface of CaO2 /MnO2 nanosheets, which could adsorb photosensitizer MB through hydrophobic interaction or pi-pi stacking. In this nanosystem, CaO2 /MnO2 had the ability of self-production of oxygen, which solved the problem of tumor hypoxia largely. Moreover, it is worth mentioning that the fluorescence of MB was suppressed by MnO2 , while its emission was triggered in the simulated tumor microenvironment. Therefore, CMP-MB nanosheet could be used to switch-control cell imaging potentially. 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyltetrazolium bromide testing and Live/Dead assay confirmed CMP-MB nanosheet had fewer side effects without illumination while it destroyed Hela cell with the illumination of light. Vitro cell experiment demonstrated CMP-MB nanosheet could achieve tumor microenvironment responsive imaging and inhibit tumor cell growth under illumination effectively. Therefore, the system has great potential for PDT application and switch-control tumor cell imaging. (c) 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 2544-2552, 2018. PMID- 29345750 TI - Mobility Trajectories at the End of Life: Comparing Clinical Condition and Latent Class Approaches. AB - OBJECTIVES: To assess mobility disability trajectories before death in a large sample of very old adults using two analytical approaches to determine how well they corresponded. DESIGN: Decedent sample from the Health, Aging and Body Composition (Health ABC) Study. Data were collected between 1997 and 2015. SETTING: Pittsburgh, Pennsylvania, and Memphis, Tennessee. PARTICIPANTS: Individuals randomly selected from well-functioning white Medicare beneficiaries and all black community residents meeting age criteria (70-79) (N = 3,075). MEASUREMENTS: Participants were interviewed in person or by phone at least every six months throughout the study. Of the 1,991 participants who died by the end of the study, 1,410 had been interviewed for 3 years before death, including an interview 6 months before dying. We analyzed self-reported mobility collected prospectively at 6-month intervals during the last 3 years of life. We derived trajectories in two ways: by averaging decline within decedent groups prespecified according to clinical conditions and by estimating trajectory models using maximum-likelihood semiparametric modeling. RESULTS: Ninety-eight percent of decedents were classified according to 4 prespecified clinical conditions (sudden death, terminal, organ failure, frailty), which produced groups with different characteristics. Five disability trajectories were identified: late decline, progressive disability, moderate disability, early decline, and persistent disability. Disability trajectory and clinical condition grouping confirmed previous research but were only marginally related. CONCLUSION: Derived disability trajectories and grouping according to clinical condition provide useful information about different facets of the end-of-life experience. The lack of fit between them suggests a need for greater attention to heterogeneity in disability in the period before death. PMID- 29345751 TI - First evidence of freezing tolerance in a resurrection plant: insights into molecular mobility and zeaxanthin synthesis in the dark. PMID- 29345752 TI - Oxidative Mechanochemistry: Direct, Room-Temperature, Solvent-Free Conversion of Palladium and Gold Metals into Soluble Salts and Coordination Complexes. AB - Noble metals are valued, critical elements whose chemical activation or recycling is challenging, and traditionally requires high temperatures, strong acids or bases, or aggressive complexation agents. By using elementary palladium and gold, demonstrated here is the use of mechanochemistry for noble-metal activation and recycling by mild, clean, solvent-free, and room-temperature chemistry. The process leads to direct, efficient, one-pot conversion of the metals, including spent catalysts, into either simple water-soluble salts or metal-organic catalysts. PMID- 29345753 TI - Restorative proctocolectomy and ileal pouch-anal anastomosis for right-sided colonic adenocarcinoma in familial adenomatous polyposis: an abdominal laparoscopic approach combined with transanal total mesorectal excision - a video vignette. PMID- 29345754 TI - Long-term follow-up after full-split liver transplantation and its applicability in the recent transplant era. AB - INTRODUCTION: Full-split liver transplantation (LTX) offers the possibility to expand the donor pool by utilization of one liver for two adults. The aim of our study was to analyze the long-term outcome in a large series and its applicability in the recent transplant era. METHODS: We performed a retrospective analysis of all full-split LTX from deceased donors (1999-2015). Additionally, the potential of full-split LTX was retrospectively analyzed in all whole organ LTX recipients between 2006 and 2015 (after introduction of the MELD allocation). RESULTS: We performed 44 full-split LTX, thereof 82% before introduction of the MELD-based allocation system in Germany. Analysis showed highly selected recipients (median MELD score 8 points) and organ data (median donor age 30 years). 5- and 10-year patient survival rates after full-left and full-right LTX were 90.7%/90.7% and 85.2%/56.8% (P = .301), corresponding graft survival rates were 80.5%/80.5% in full-left grafts and 73.7%/36.8% in full-right graft (P = .198). CONCLUSION: In the past, in case of strict donor and recipient selection, full-split LTX was a feasible method with a good outcome. Due to introduction of the national waiting list with a patient-oriented allocation based on the MELD score in 2006, full-split LTX seems to be not any longer applicable. PMID- 29345755 TI - Expression of hepatic progenitor cell markers in acute cellular rejection of liver allografts-An immunohistochemical study. AB - BACKGROUND: Hepatic progenitor cells (HPC) are induced following liver injury to facilitate regeneration. Acute cellular rejection (ACR) is a common complication after liver transplantation as a result of immune-mediated liver injury. In this study, we characterized HPC phenotype in liver allograft biopsy with ACR. We also explored the correlation between expression HPC immunophenotype and clinicopathological parameters. METHODS: Forty-four liver allograft biopsies performed between 2008 and 2016 in a single center with histologically proven ACR were examined for immunohistochemical expression of HPC markers CK19 and Sox9. The number of positive-staining cells was assessed and correlated with clinicopathological features by statistical analysis. RESULTS: HPC phenotype expression as denoted by CK19 and Sox9 staining was detected in the liver tissue with ACR. The numbers of CK19+ and Sox9+ cells were positively correlated. A larger number of CK19+ cells were associated with higher serum aspartate aminotransferase (AST) level at biopsy. By histological rejection score, a larger number of Sox9+ cells were associated with a higher score of bile duct damage. CONCLUSION: Expression HPC markers were correlated with clinical and histological parameters in ACR. Expression of each individual marker may be more tightly associated with a particular component of the ACR process. PMID- 29345756 TI - Clinical Intentions of Antibiotics Prescribed Upon Discharge to Hospice Care. AB - OBJECTIVES: To better understand the clinical intentions for antibiotic prescribing upon discharge from acute care to hospice care. DESIGN: Retrospective cohort study. SETTING: Five hundred forty-four-bed academic, acute-care, tertiary referral hospital in Portland, Oregon. PARTICIPANTS: Adults (>=18) who received an outpatient prescription for antibiotics on discharge from an acute care hospital to hospice care between January 1, 2009 and December 31, 2011 (N = 149). MEASUREMENTS: We determined whether antibiotics were indicated for treatment of an active infection, palliative treatment, prophylaxis, or prescribed according to family or participant preference. RESULTS: Antibiotics were prescribed to 17.6% (n = 149) of individuals discharged to hospice care over the 3-year study period. Antibiotics were most frequently prescribed for pneumonia (19.5%), urinary tract infections (18.9%), and gastrointestinal tract infections (17.0%). The explicit rationale for antibiotic prescription was documented for only 72 prescriptions (45.3%). For 84 (52.8%) participants, antibiotics were used to treat an active infection in the hospital. Of prescriptions with a documented rationale, 37.5% indicated that the intent was curative, 26.4% prophylaxis, and 22.2% to suppress an infection. For 19.4% of prescriptions, participants or their family members specifically wanted to be treated with antibiotics. Only 9.7% of prescriptions specifically indicated that antibiotics were prescribed for palliative reasons. CONCLUSION: Antibiotics were frequently prescribed for treatment of active infection in individuals discharged to hospice care. Further research is needed to document antibiotic benefits and risks and optimize medication management at the end of life. PMID- 29345758 TI - Continuous deacetylation of cephalosporins. AB - Continuous deacetylation of cephalosporin C, 7-aminocephalosporanic acid, and of 2-methoxyethyl acetate in packed beds of an immobilized esterase is described by simple empirical equations relating conversion to space velocity and temperature. The choice of process conditions is discussed in relation to the effects of temperature on column efficiency, column life, growth of microbial contaminants, and the rates of thermal decomposition of the substrates. At the preferred temperature of 10 degrees C columns were operated continuously for one month with only small losses in efficiency. PMID- 29345759 TI - Continuous conversion of sucrose to fructose and gluconic acid by immobilized yeast cell multienzyme complex. AB - A multienzyme complex consisting of invertase, glucose oxidase, and catalase was reconstituted by binding glucose oxidase using concanavalin A (Con A) to the cell wall of Sacchararomyces cerevisiae, previously induced for maximal activities of invertase and catalase. The cell flocculate obtained was stabilized by entrapment in polyacrylamide using gamma irradiation at 100 kR. This complex showed a shortening of the lag period and enhancement in gluconic acid production as compared to a similar mixture of soluble enzymes. The efficacy of the multienzyme complex has been compared with that of mixed multienzyme system composed of individually immobilized enzymes. The immobilized multienzyme complex in a continuous-flow stirred-tank reactor system could be operated for continuous conversion of sucrose to fructose and gluconic acid. The reactor system did not show any loss in efficiency in a continuous operation over 20 days. PMID- 29345757 TI - Whole genome sequencing analysis for cancer genomics and precision medicine. AB - Explosive advances in next-generation sequencer (NGS) and computational analyses have enabled exploration of somatic protein-altered mutations in most cancer types, with coding mutation data intensively accumulated. However, there is limited information on somatic mutations in non-coding regions, including introns, regulatory elements and non-coding RNA. Structural variants and pathogen in cancer genomes remain widely unexplored. Whole genome sequencing (WGS) approaches can be used to comprehensively explore all types of genomic alterations in cancer and help us to better understand the whole landscape of driver mutations and mutational signatures in cancer genomes and elucidate the functional or clinical implications of these unexplored genomic regions and mutational signatures. This review describes recently developed technical approaches for cancer WGS and the future direction of cancer WGS, and discusses its utility and limitations as an analysis platform and for mutation interpretation for cancer genomics and cancer precision medicine. Taking into account the diversity of cancer genomes and phenotypes, interpretation of abundant mutation information from WGS, especially non-coding and structure variants, requires the analysis of large-scale WGS data integrated with RNA-Seq, epigenomics, immuno-genomic and clinic-pathological information. PMID- 29345760 TI - Application of temperature-sensitive mutants for single-cell protein production. AB - Cell-division-cycle, temperature-sensitive mutants of Saccharomyces cerevisiae were investigated as a means of altering the morphological characteristics and subsequent physical properties of single-cell protein (SCP). Strain 4471, harboring mutation cdc 4, formed a visible complex mass at the nonpermissive temperature, after being grown at 30 degrees C and then transferred to 37 degrees C for 8 hr. Microscopic observation showed that the mother cell was unable to complete the budding process at the nonpermissive temperature, which caused the cells to enlarge. Viscosity measurements were used to establish and characterize optimum morphological changes in the yeast. The Maximum increase in viscosity occurred when cells were incubated at 30 degrees C and then shifted to 37 degrees C for 8 hr. Strain 4471 exhibited yield stress, whereas A364A did not. Maximum change in yield stress occurred when cells were shifted from 30 to 37 degrees C for 8 hr. No significant loss of protein or RNA occurred in strain 4471, as compared to strain A364A, when incubated at the nonpermissive temperature. PMID- 29345761 TI - The Brazilian ethanol program. AB - Brazilian needs for petroleum as a primary energy source grew from 13.2% in 1940 to 41.7% in 1977. This resulted in a much greater dependence on foreign sources and prompted the Government to initiate a detailed study of alternatives. The National Alcohol Program established in 1975 is just one of the options being examined. The National Energy Balance forecast shows that annual anhydrous alcohol consumption for automotive purposes should increase from 1.74 * 106 m3 to 4.7 * 106 m3 in the period from 1978 to 1987. This paper presents the main objectives of the National Alcohol Program in the context of the overall Energy Program, points out the problems connected with alcohol production and utilization, and reviews the serious problems related to its distribution to the consuming centers. Finally, the indirect benefits resulting from the implementation of the National Alcohol Program are shown, underlining the saving of foreign currency, the substantial increase in employment opportunities, the reduction in regional and individual income discrepancies, and the expansion of capital goods production, together with the improvement of national technology in the agricultural and industrial sectors. PMID- 29345762 TI - Kinetic study on thermal stability of immobilized invertase. AB - The kinetic study of the thermal stability of three kinds of invertases: native, immobilized on porous glass covalently, and on ion-exchange resin ionically, has been carried out, measuring their enzymatic activity for sucrose hydrolysis. Thermal deactivations of all invertases obeyed first-order kinetics, being independent of substrate concentration, with kd and DeltaEd , DeltaSd * as shown in Tables I and II, respectively. Based on these parameter values, the effects of immobilization and pH at deactivation on the stability have been considered, and it was suggested that the ionic bond gives a more loosely deformed enzyme than the covalent bond. PMID- 29345763 TI - Modeling of rotating biological contactor systems. AB - An investigation of the rotating biological contractor (RBC) process variables to determine the efficiency of biological oxygen demand (BOD) removal is presented. Operating parameters including influent BOD content (<355 mg/liter), flow rate, disk surface area, hydraulic loading, disk rotational speed, liquid retention time, stage number, and wastewater temperature were evaluated. The BOD predictive model was developed using literature data with multiple regression analysis. This study shows that influent BOD concentration, hydraulic loading, stage number, and wastewater temperature are the most significant variables in predicting the RBC system performance. The model presently developed was verified by field data concerned with the treatment of both domestic and low-strength industrial wastewaters. Also, the results calculated by this model were compared to those obtained from Weng's model. PMID- 29345764 TI - Characteristics of immobilized invertase. AB - Five kinds of immobilized invertases (IMI)-covalently of porous glass and ion exchange resins and ionically on ion-exchange resins-have been prepared and their kinetic characteristics for sucrose hydrolysis, such as Km , K, pH profile, and thermal stability were studied. Comparing the values of Km and activation energy and the entropy of IMI with those of native invertase, it was concluded that the immobilization influences not binding but kinetic specificity. The effects of the immobilization method on thermal stability were also discussed. PMID- 29345765 TI - Batch- and continuous-culture studies of a methane-utilizing mixed culture. AB - A methane-utilizing mixed culture isolated from activated sludge by selective enrichment at 45 degrees C was found to consist of three interacting species: a methaneutilizing bacterium, a citrate-utilizing bacterium, and a methanol utilizing bacterium. All three species grew well at 45 degrees C. Three different stable mixed cultures were reconstituted by various combinations of these pure cultures. The nutritional requirements and substrate ranges for each pure culture were determined. The nutritional requirements and substrate ranges for each pure culture were determined. The saturation constant for the methane-utilizing bacterium on methane (K CH 4) and for the methanol-utilizing bacterium on methanol (K CH 3OH) were 1.73 * 10-6 M and 4.51 * 10-7 M, respectively. The volumetric mass transfer coefficient for methane (KL a) was determined to be 65.6 hr-1 . PMID- 29345766 TI - Production of maltose and maltotriose from starch and pullulan by a immobilized multienzyme of pullulanase and beta-amylase. AB - Pullulanase was immobilized on tannic acid and TEAE-cellulose, and beta-amylase was covalently immobilized on p-aminobenzylcellulose. Both the immobilized enzymes showed similar properties in pH and temperature optima and heat stability. On passing the pullulan solution at high temperature (50 degrees C) through a column packed with immobilized pullulanase, only maltotriose was obtained for ten days and the half-life was about 15 days. In a continuous reaction using immobilized multienzyme, starch was completely converted into maltose at 50 degrees C and at a space velocity of 1.2, a comparative longer half life (20 days) was obtained. It was concluded that starch was smoothly converted into maltose with the aid of alpha-amylase contaminated in the immobilized pullulanase and the operational stability of the column increased with 2-5mM Ca2+ . PMID- 29345767 TI - A quantitative description of the growth of Saccharomyces cerevisiae CBS 426 on a mixed substrate of glucose and ethanol. AB - Saccharomyces cerevisiae CBS 426 was grown aerobically in continuous culture with a mixture of glucose and ethanol as the carbon source. The flows of biomass, glucose, ethanol, oxygen, and carbon dioxide were measured. A model for growth with two substrates was derived. Application of this model to the above-mentioned system yielded values for YATP and P/O. The joint confidence regions for these parameters were calculated. The relevance to industrial production of bakers' yeast is discussed. PMID- 29345768 TI - Immobilized catalase-containing yeast cells: Preparation and enzymatic properties. AB - The cell of Saccharomyces cerevisiae previously induced for catalase (EC 1.11.1.6) activity were immobilized by entrapment of intact cells in acrylamide polymerized by gamma irradiation (100 kR). Yeast cells showed an enhancement in catalase activity on entrapment, an effect similar to that observed on treatment with organic solvents like toluene. The cells pretreated with toluene, however, showed complete loss of catalase activity on entrapment. The entrapped enzyme exhibited a narrow pH optimum, reduced Km for H2 O2 , and a decrease in thermostability. The temperature optimum of catalase was also decreased from 60 to 40 degrees C on immobilization. A tenfold decrease in the activation energy was also observed. The enzyme in the entrapped cells was, however, stable toward inactivation by gamma irradiation. Unlike the intact cells, the entrapped yeast cells did not have the ability to induce catalase. PMID- 29345769 TI - Substrate utilization kinetic model for biological treatment process. AB - The applicability of Contois' kinetic equation to aerobic and anaerobic treatments of organic wastes is investigated. A refractory coefficient to account for the nonbiodegradable portion of the organic substrates in the digester is incorporated into the kinetic equation. The kinetic equation is applied to the data for aerobic digestions of organic substrates and for anaerobic treatment of dairy wastes. They all show a very good fit of the kinetic equation to the data. Furthermore, the kinetic parameters and the refractory coefficients are shown to be independent of influent organic substrate concentration. This study confirms previous reports that the effluent quality of biological treatment systems for organic wastes depends on influent organic waste concentration. The effect of temperature on the kinetic parameters and the refractory coefficient for anaerobic treatment of sewage sludge are studied. It shows that the kinetic parameters vary with temperature, while the refractory coefficient remains fairly constant. Equations to predict biodegradable treatment efficiency and volumetric substrate utilization rate are also briefly discussed. PMID- 29345770 TI - Interspecific interactions in a methane-utilizing mixed culture. AB - A two-member methane-utilizing mixed culture of bacteria, formed by combining two pure cultures isolated from a naturally occurring methane-utilizing mixed culture, was studied in continuous culture. From the nutritional requirements and substrate ranges of the pure cultures, a mechanism for the interspecific interactions occurring in the mixed culture was proposed. Product formation kinetics were determined in continuous culture for each product involved in the proposed mechanism. From this proposed mechanism a mathematical model was derived based on simple material balance equations around a single-stage chemostat. The steady-state predictions of this model were compared to experimental results obtained from continuous-culture experiments with the two-member methane utilizing mixed culture. Interspecific interactions occurring in two-member methanol-utilizing and three-member methane-utilizing mixed cultures have also been discussed. PMID- 29345771 TI - Reply to Wang and Kan. PMID- 29345772 TI - Membrane responses induced by oligogalacturonides in suspension-cultured tobacco cells. PMID- 29345773 TI - Novel carbohydrate metabolism in the resurrection plant Craterostigma plantagineum. PMID- 29345774 TI - Rewiring Chemical Networks Based on Dynamic Dithioacetal and Disulfide Bonds. AB - The control of the connectivity between nodes of synthetic networks is still largely unexplored. To address this point we take advantage of a simple dynamic chemical system with two exchange levels that are mutually connected and can be activated simultaneously or sequentially. Dithioacetals and disulfides can be exchanged simultaneously under UV light in the presence of a sensitizer. Crossover reactions between both exchange processes produce a fully connected chemical network. On the other hand, the use of acid, base or UV light connects different nodes allowing network rewiring. PMID- 29345775 TI - Versatile Modes of Cooperative B-H Bond Activation Reactions in Ruthenium-Carbene Complexes: Addition, Ring-Opening and Insertion. AB - Cooperative B-H bond activation reactions with thio- and iminophosphoryl tethered ruthenium-carbene complexes are reported. The complexes show surprisingly different reactivities towards the commonly employed boranes CatBH, PinBH and BH3 ?LB as a result of different modes of metal-ligand cooperation. Although the iminophosphoryl system allows for selective 1,2-addition of the B-H bond across the Ru=C double bond, the sulfur analogue only delivers the 1,2-addition product for CatBH, whereas activation of BH3 and PinBH lead to further insertion reactions in one or more sides of the Ru-C-P-S-ring. The different reactivities can be explained by the differences in the electronics of the carbene complexes and the phosphoryl tether and by the Lewis acidities of the boranes. DFT calculations show that the mechanism of the reactions either proceeds by an addition across the Ru=C bond with different regioselectivities or across the Ru S linkage. PMID- 29345776 TI - Allyl Isothiocyanate Ameliorates Obesity by Inhibiting Galectin-12. AB - SCOPE: The aim of this study is to investigate the signaling pathways by which allyl isothiocyanate (AITC) reduces adipocyte differentiation and the efficacy of AITC in suppressing galectin-12 levels as a therapeutic for high fat diet (HFD) induced obesity. METHODS AND RESULTS: AITC presents anti-adipogenic effects on 3T3-L1 cells by decreasing lipid droplet accumulation in a dose-dependent manner. AITC suppresses 3T3-L1 differentiation into adipocytes by decreasing galectin-12 expression and by downregulating key adipogenic transcription factors. AITC influences the expression of 3T3-L1 pre-adipocytes by modulating adipokine expression (leptin and resistin) and by regulating the protein kinase B (PKB/Akt)/cAMP response element-binding protein (CREB) pathway. In HFD-fed mice, oral administration of AITC reduces the body weight, accumulation of lipid droplets in the liver, and white adipocyte size. CONCLUSION: In summary, the results indicate that AITC inhibits adipocyte differentiation by suppressing galectin-12 levels in 3T3L1 cells and has antiobesity effects in HFD-fed mice. PMID- 29345777 TI - The occurrence and prevention of ethanol fermentation in high-dry-matter grass silage. AB - Ethanol is a common, usually minor fermentation product in ensiled forages, the major product being lactic acid. Occasionally, high levels of ethanol are found in silages. The aim of this study was to determine the incidence of high-dry matter (DM) grass silages containing ethanol as the main fermentation product (ethanol silages), to describe the fermentation process in such silages and to determine the effect of grass maceration prior to wilting and addition of a bacterial inoculant containing Lactobacillus plantarum and Enterococcus faecium strains on fermentation. Twenty-one laboratory silages produced between 1993 and 1995, 21 farm silages produced between 1980 and 1989 and 36 farm silages produced in 1995 (all produced without additive) were examined for pH and chemical composition. Dry matter (DM) loss during ensilage was determined for the laboratory silages only. Four laboratory silages were identified as ethanol silages. Mean concentrations of ethanol, lactic acid and acetic acid were 48.1, 15.5 and 6.0 g kg-1 DM respectively. In the silages that contained lactic acid as the main fermentation product (lactic acid silages) these values were 7.7, 45.5 and 15.1 g kg-1 DM. Mean DM loss and pH were 62.8 g kg-1 DM and 5.32 respectively for ethanol silages and 24.4 g kg-1 DM and 4.69 for lactic acid silages. There was no difference between ethanol silages and lactic acid silages in the mean concentration of ammonia-N (94 g kg-1 total N), and butyric acid was not detected (<0.2 g kg-1 DM), indicating that both types of silages were well preserved. Analysis of the composition of the grass at ensiling showed a positive correlation between the concentration of soluble carbohydrates and the development into ethanol silage. Analysis of the farm silages indicated that 29% of the silages produced between 1980 and 1989 and 14% of those produced in 1995 were ethanol silages. Maceration prior to wilting and addition of silage inoculant improved lactic acid fermentation and prevented high ethanol levels. The micro-organisms responsible for ethanol fermentation as well as the implications of feeding ethanol silages to livestock remain to be resolved. (c) 2000 Society of Chemical Industry. PMID- 29345778 TI - First confirmation in red wine of products resulting from direct anthocyanin tannin reactions. AB - Analysis of wine fractions before and after thiolysis confirmed the occurrence in red wine of direct reactions between anthocyanins and tannins established earlier in model solutions. Results showed the presence of two types of structures differing in the linkage position of the anthocyanin moiety. On one hand, detection of malvidin-3-glucoside (Mv3g) among thiolysis products revealed the presence of anthocyanin-derived pigments in which Mv3g is linked by its C-6 or C 8 top. On the other hand, LC/MS analysis allowed the detection of two derivatives tentatively identified as flavenes or a bicyclic condensation products yielded by the reaction of a flavanol monomer (C-6 or C-8 top) with malvidin-3-glucoside (C 4 position). The presence of the corresponding benzylthioethers after thiolysis of the polymeric fractions confirmed that procyanidins are similarly involved in the latter reaction. Besides, MS also allowed the detection of new benzylthioethers of catechin derivatives released after thiolysis of the wine fractions, indicating that in addition to the postulated processes other types of reactions take place in wines. (c) 2000 Society of Chemical Industry. PMID- 29345779 TI - Kinetics of flavour and aroma changes in thermally processed cupuacu (Theobroma grandiflorum) pulp. AB - Changes in 'fresh' and 'cooked-notes' during thermal treatment of cupuacu (Theobroma grandiflorum) pulp were evaluated and modelled. Isothermal experiments in the temperature range of 70-98 degrees C were carried out and a non-linear regression was performed to all data to estimate kinetic parameters. 'Fresh' and 'cooked-notes' change followed simple first-order (Ea = 78-82 kJ.mol-1 , z = 30 31 degrees C) and reversible first order (Ea = 80-85 kJ.mol-1 ) kinetics, respectively. Although 'cooked-notes' were linearly correlated with 'fresh-notes' (R2 = 0.99), the former was a better indicator for quality degradation. These results are useful to design pasteurisation processes while minimising sensory changes. (c) 2000 Society of Chemical Industry. PMID- 29345780 TI - Influence of intramuscular fat content on lipid composition, sensory qualities and consumer acceptability of cured cooked ham. AB - The present study is part of a project which aims to examine the influence of intramuscular fat (IMF) content on the sensory attributes and consumer acceptability of pork. An experiment was conducted to evaluate the influence of IMF level in muscle semimembranosus (SM) on the composition of its lipid fraction and on the sensory qualities and consumer acceptability of cured cooked hams. Thirty-two carcasses were selected 24 h after slaughter from 125 Duroc * Landrace castrated male pigs showing large variability in SM muscle IMF content and were assigned to four IMF groups: <=2%, 2-3%, 3-4% and >4%. Cured cooked ham slices were evaluated by a trained expert panel of 12 members and by a group of 56 consumers. Results from lipid analyses indicate that (i) an increase in IMF content was almost entirely reflected by an increase in the triglyceride content of the muscle and (ii) higher IMF levels were associated with higher free fatty acid and monoglyceride and lower cholesterol levels. The sensory evaluation of marbling significantly increased with IMF level, whereas other sensory qualities were unaffected. High IMF levels significantly depreciated the consumer perception of fat, aspect, taste and smell of ham slices. Overall, slices with the highest IMF levels got the least favourable rating by consumers. The present study indicates that increased IMF levels in muscle semimembranosus do not have significant effects on the sensory attributes of cured cooked hams, apart from the perception of marbling. However, high IMF levels have detrimental effects on the acceptability by consumers. (c) 2000 Society of Chemical Industry. PMID- 29345781 TI - The yield and carcass chemical composition of impala (Aepyceros melampus), a southern African antelope species. AB - This investigation analyses the commercial carcass yields and chemical composition of impala (Aepyceros melampus). The potential of this species for the export market is also discussed. Impala rams (eight) and ewes (eight) cropped commercially in Zimbabwe were found to have a similar dressout proportion (580 g kg-1 ), although the males had a heavier live weight (49.4 +/- 4.606 kg) than the females (33.5 +/- 3.417 kg). Sexual dimorphism was shown, with the males having significantly (p < 0.01) heavier necks (69 +/- 5.47 g kg-1 ) and forequarters (279 +/- 3.79 g kg-1 ) than the females (51 +/- 1.70 and 259 +/- 2.15 g kg-1 respectively) when expressed as a proportion of cold carcass weight (27.6 +/- 2.551 and 19.0 +/- 1.960 kg for males and females respectively). No sexual effects (p > 0.2) were found in the mean chemical proximate composition of the 9 10-11 rib cut for the moisture (724.0 +/- 14.00 g kg-1 pooled sample), protein (238.3 +/- 7.46 g kg-1 pooled sample) and ash (21.2 +/- 3.74 g kg-1 pooled sample) contents. The females had a statistically higher (p = 0.0197) mean total lipid content (33.9 +/- 1.705 g kg-1 ) than the males (24.5 +/- 3.171 g kg-1 ). This investigation occurred at the end of the impala rut season, a period when the rams not only consume less feed but also expend more energy owing to strenuous activities in fighting for and maintaining a harem. (c) 2000 Society of Chemical Industry. PMID- 29345782 TI - Comparison of the expansion ability of fermented maize flour and cassava starch during baking. AB - The modifications occurring during the fermentation (at 20 or 35 degrees C) and drying (under the sun or in an oven at 40 degrees C) of maize flour (ogi) and cassava starch along with their expansion ability during baking were characterised and compared. A high temperature accelerated the fermentation but favoured lactic acid synthesis for maize ogi and butyric acid for cassava starch. The increase in acidity was higher for maize, but dried maize ogi did not evidence any expansion ability whatever the experimental conditions. Cassava starch that had been fermented at 20 degrees C then sun-dried presented the highest expansion ability. It was associated with low paste viscosities and high swelling and solubilisation values. When the fermentation was carried out at 35 degrees C, an annealing of cassava starch occurred that delayed starch gelatinisation and which could be involved in its lower baking expansion ability. (c) 2000 Society of Chemical Industry. PMID- 29345783 TI - Nutritional quality of complementary food prepared from unmalted and malted maize fortified with cowpea using extrusion cooking. AB - The nutritional quality of extruded unmalted or malted maize fortified with cowpea as complementary food was assessed based on its proximate analysis, amino acid composition and results from rat feeding with the blends. Results indicated a slight decrease and increase in protein content due to malting and extrusion respectively. The changes in fat, crude fibre and ash content were not significant. The blends were a good source of energy, ranging from 1831 to 2045 kJ per 100 g. Extrusion significantly increased the amino acid content of the blends, while malting had a varied effect on each of the amino acids. There was no significant difference in the protein efficiency ratio (PER), net protein ratio (NPR) and weight gain of rats fed the blends when compared with the control (casein diet). The present study shows that malting improved the nutritional quality of the blends. Rats fed the casein diet had higher values for total digestibility (TD) and net protein utilisation (NPU). There was no significant difference (P > 0.05) in the internal organ weights of rats fed all blends except the protein-free diet. (c) 2000 Society of Chemical Industry. PMID- 29345784 TI - Interaction between Maillard reaction products and lipid oxidation in starch based model systems. AB - The effect of Maillard reaction products (MRPs) on the kinetics of lipid oxidation in intermediate-moisture model systems containing pregelatinised starch, glucose, lysine and soybean oil has been studied. The samples, either containing all components or excluding one or more of them, were heated at 100 degrees C for different times. Lipid oxidation and browning indices were measured and the results confirmed the ability of MRPs to retard peroxide formation. Under the conditions adopted, the rate of the Maillard reaction was increased by the presence of the oil and its oxidation products. The antioxidant action of MRPs was also evaluated using a peroxide-scavenging test based on crocin bleaching. The results demonstrated that antioxidant activity developed with increased browning of the samples. (c) 2000 Society of Chemical Industry. PMID- 29345785 TI - Sequential hydrolysis of swine carcass samples and determination of amino acid concentrations using pre-column derivatization with phenyl isothiocyanate. AB - Comparing amino acid (AA) retention levels in pig carcass to true ileal digestible AA intake provides an estimate of the marginal efficiency of AA utilization. Accurate analysis of AA levels in the carcass samples is critical. However, the standard 24 h of hydrolysis does not always provide maximum AA values. A study was carried out to investigate the effect of hydrolysis time on AA measurements in pig carcass. Correction factors to standardize AA levels to 24 h of hydrolysis were also determined. Ground carcass samples were hydrolysed with 6 mol litre-1 hydrochloric acid (HCl) in a 110 degrees C oven for nine different time periods. Pre-column derivatization with phenyl isothiocyanate (PITC) was used to determine AA concentrations in all of the samples. Hydrolysis time significantly affected (P < 0.001) AA levels. The highest levels (P > 0.05) of valine, isoleucine, serine, glycine, threonine, alanine, arginine, proline, histidine and phenylalanine were not observed with 24 h hydrolysis. Therefore, correction factors and sequential hydrolysis curves are important for these amino acids. In conclusion, the effect of hydrolysis time should be considered in amino acids analysis. (c) 2000 Society of Chemical Industry. PMID- 29345786 TI - Existing and potential applications of ultraviolet light in the food industry - a critical review. AB - Short-wave ultraviolet light (UVC, 254 nm) can reduce dramatically the microbial load in air or on hard surfaces free from food residues, and can eliminate pathogens from potable water filtered to remove organic residues and 'clumps' of bacteria. More recently, approval of the Food and Drug Administration (USA) has been sought for a system for the destruction of pathogenic bacteria in fruit juices using UVC, and the same approach could perhaps be applied to remove spoilage organisms from cider or wines. In contrast, long-wave UV light (UVA, >320 nm) has limited microbiocidal properties, and for practical applications its effectiveness has to be enhanced by the presence of photosensitive compounds (eg furocoumarins) that will diffuse into a microbial cell prior to irradiation. The penetration of UVA into water is better than that of UVC, and its bacteriocidal action in the presence of photosensitisers can be rapid. However, pure furocoumarins are expensive and their addition to foodstuffs might be questioned on safety grounds. (c) 2000 Society of Chemical Industry. PMID- 29345787 TI - Development and application of soy-protein films to reduce fat intake in deep fried foods. AB - A soy protein film coating was developed and evaluated to reduce fat transfer in deep-fried foods during frying. Soy protein isolate solutions (10% SPI) with 0.05% gellan gum as plasticizer cooled after being held at 80 degrees C for 20 min provided suitable films. There was a significant fat reduction (55.12 (+/ 6.03)%db) between fried uncoated and coated discs of doughnut mix. The same films were used on potato fries. Some panellists observed a slight difference between the coated and uncoated fries but many preferred the coated fries over the uncoated ones. Penetration test on potato fries showed no significant difference between the texture of coated (SPI with gellan gum) and the uncoated fried samples. A solution of 10% SPI with 0.05% gellan gum is recommended for coating foods to reduce fat intake during deep-fat frying. (c) 2000 Society of Chemical Industry. PMID- 29345788 TI - Activities of phospholipases A and lysophospholipases in glycolytic and oxidative skeletal muscles in the rabbit. AB - Oxidative muscles contain more free fatty acids than glycolytic muscles, which could explain in part their higher sensitivity to oxidation. These fatty acids are partly the result of phospholipid hydrolysis catalysed by phospholipases A and lysophospholipases. Up to now, very little is known on the activities of these enzymes in skeletal muscles. This study deals with the activities of phospholipases A and lysophospholipases in five rabbit muscles covering a large range of metabolic types (oxidative Soleus and Semimembranosus proprius muscles, glycolytic Psoas major and Longissimus lumborum muscles and intermediate Gastrocnemius laterale muscle). The results showed that (a) phospholipases A and lysophospholipases had maximal activity at pH 8-9; (b) phospholipases A and lysophospholipases retained more than 50% of their maximal activity at pH 5.5-6, the ultimate pH of muscles; (c) lysophospholipases exhibited a higher activity than phospholipases A (4-7-fold higher in the oxidative muscles, 11-fold higher in the intermediate muscle and 18-23-fold higher in the glycolytic muscles); and (d) phospholipase A and lysophospholipase activities were higher in oxidative muscles than in glycolytic muscles (10-25-fold higher for phospholipases A and 4 5-fold higher for lysophospholipases). Thus oxidative muscles have a higher potential activity for post-mortem hydrolysis of phospholipids. (c) 2000 Society of Chemical Industry. PMID- 29345789 TI - A mathematical model for colour loss in paprikas containing differing proportions of seed. AB - In this paper a general kinetic model for predicting the colour of paprikas with differing proportions of seed as a function of the storage conditions is developed. We apply this model to study the effect of time and storage conditions on colour loss in paprikas made from the same pepper variety, Ocal, but with differing proportions of seed. The agreement between the experimental colour data for this paprika and the results predicted by the mathematical model is very good. Both the model and the experimental data show that the rate of colour loss decreases with increasing proportion of seed, and after a determined inversion time the samples with the lowest initial colour values actually show the highest values. Likewise, the experimental data show that for a given proportion of seed the colour loss decreases as the storage relative humidity increases. (c) 2000 Society of Chemical Industry. PMID- 29345790 TI - Evaluating two kinds of centrifuged virgin oils arising from continuous olive processing. AB - Oils extracted from olive pastes by the direct centrifugation mode were compared with the homologous oils produced by the indirect centrifugation (after percolation) mode. The former were characterised by: (i) higher contents of total phenols, o-diphenols, hydroxytyrosol, hydroxytyrosol-aglycons, total volatiles, trans-2-hexanal and other pleasant volatiles, total tocopherols, total sterols and waxes; (ii) lower contents of triterpene dialcohols, aliphatic and triterpene alcohols, chlorophylls and pheophytins; (iii) lower values of integral colour index; (iv) higher values of turbidity, campesterol/stigmasterol ratio, 1,2 diglycerides/1,3-diglycerides ratio, oxidative stability and overall quality indices; and (v) higher sensory score. Stigmastadienes and trans-isomer C18 fatty acids were always not detected. The average oil outputs of the two centrifugation extraction procedures were comparable, as confirmed by similar overall oil amounts found in the by-products. (c) 2000 Society of Chemical Industry. PMID- 29345791 TI - Characterisation of peptides in silages made from perennial ryegrass with different silage additives. AB - The effects of applying either formic acid (5.4 g kg-1 ), a mixture of formic acid (2.7 g kg-1 ) and formaldehyde (1.5 g kg-1 , 81 g kg-1 herbage crude protein) or two concentrations of a cysteine peptidase inhibitor, cystamine (5 or 50 g kg-1 ), to perennial ryegrass (Lolium perenne) on the nitrogen (N) distribution of the resulting silages were investigated, with emphasis on changes in concentration, composition and molecular weight of silage peptides. Herbage (156 g dry matter kg-1 and 141 g water-soluble carbohydrate kg-1 dry matter) was ensiled in triplicate in laboratory silos for 100 days. Formic acid and the formic acid/formaldehyde mixture reduced soluble non-protein N and ammonia N concentrations (P < 0.01); in addition, formic acid increased peptide N concentrations (P < 0.05). Cystamine at 50 g kg-1 reduced ammonia N concentrations (P < 0.01) and increased peptide N concentrations (P < 0.05), but when applied at 5 g kg-1 had little effect. Gel filtration of silage extracts on Sephadex G-25 suggested that a small proportion (0.06-0.11 g kg-1 peptide N) of silage peptides had a chain length of 7-9 amino acids, but remaining peptides were smaller with chain lengths of 2-6 amino acid residues. Amino acid analysis of silage peptides indicated that additive treatment had little effect on peptide amino acid composition but that peptides with a chain length of 7-9 amino acids contained lower proportions of isoleucine and arginine. (c) 2000 Society of Chemical Industry. PMID- 29345792 TI - Location of and post-mortem changes in some cytoskeletal proteins in pork and cod muscle. AB - The cytoskeletal proteins actin, nebulin, spectrin, desmin, vinculin and talin were labelled immunohistochemically in sections of muscle from commercially available pigs and cod (Gadus morhua) taken pre-rigor and from samples stored for several days. Actin, nebulin and spectrin gave similar labelling patterns in both pork and cod muscle which remained the same in stored samples. Desmin was intensely labelled at the cell boundaries and within the body of the cells in both pork and cod in the initial and the stored samples. Vinculin was readily labelled in pork muscle but showed only diffuse labelling in fish. Labelling for talin in pork muscle was intense at the sarcolemma but was not present in samples stored for 4 days. In contrast, the label for talin was concentrated at the myotendinous junction of the cod muscle throughout the storage period. These are the first reports of the detection and location of spectrin and vinculin in fish muscle and of the location of talin. The results are discussed in terms of muscle structure, function and post-mortem tenderisation. (c) 2000 Society of Chemical Industry. PMID- 29345793 TI - Characteristics of nixtamalised maize flours produced with the use of microwave heating during alkaline cooking. AB - Whole, ground and abrasively dehulled grains from both normal (H-34 and H-34) and quality protein (QPM and QPMa) maize were mixed with water contents of 70, 95 and 100 g kg-1 and calcium hydroxide concentrations of 0.0, 0.3, 0.5 and 2.0 g kg-1 and heated (operating frequency 2.450 MHz, high-power setting) for 10, 15 and 20 min in a commercial microwave oven. The cooked grain was then oven dried and milled to obtain nixtamalised maize flour (NMF). The protein contents and test weights of QPM were higher than for the normal hybrids. The highest yields of masa and tortillas were found for the normal hybrids, and these samples did not show significant differences, as compared with the commercial nixtamalised flour (CNMF) used as control, with respect to masa firmness and adhesiveness and tortilla tensile strength. The cutting force of tortillas from hybrid H-30 and QPM did not show significant differences from the control. The highest values of tortilla rollability were found for the control followed by hybrid H-34. The values of residual cooking liquor for microwave-heated samples were lower than for the control. Ground or dehulled maize grain gave sticky masa and poor mechinical characteristics. Tortillas from whole grain showed good characteristics of texture and consistency of masa, and the tortillas were subjectively similar in colour, flavour and rollability to the tortillas prepared with CNMF. These results indicate a potential use of microwave energy to produce NMF for tortillas and derivatives. (c) 2000 Society of Chemical Industry. PMID- 29345794 TI - A modified laboratory canning protocol for quality evaluation of dry bean (Phaseolus vulgaris L). AB - The effects of calcium (Ca2+ ) level in the soak water, blanch water and brine, blanching temperature, and total seed solids on dry bean canning quality were investigated to optimise a laboratory canning protocol. A linear increase in the Ca2+ level of soak water, blanch water and brine resulted in a linear decrease in hydration coefficient and percent washed drained weight but a linear increase in texture. Low Ca2+ level (10 mg kg-1 ) reduced the hydration time for dry bean seed from 14 to 1 h. Blanching temperatures of 50, 70 and 88 degrees C had non significant effects on canning quality traits. Blanching for 30 min at 70 degrees C for black bean or at 88 degrees C for navy bean and pinto bean resulted in percent washed drained weight >= 60, as required by the Canada Agricultural Products Standards Act. Seed solids levels of 95-97 g per 300 * 407 (14 fl oz) can were sufficient to attain a percent washed drained weight of 60. It was confirmed that the thermal processing conditions (115.6 degrees C retort temperature, 45 min) used in this study were sufficient to achieve commercial sterility. The optimised lab protocol for evaluation of the canning quality of dry bean breeding lines is as follows. Seed containing 95 g of solids for pinto bean, 96 g for navy bean and 97 g for black bean is soaked in water for 30 min at 20 degrees C and blanched for 30 min at 70 degrees C for black bean and 88 degrees C for navy bean and pinto bean in water containing 10 mg kg-1 of Ca2+ . The seed is then transferred to a 300 * 407 can, filled with brine containing 10 mg kg-1 of Ca2+ , 1.3% (w/v) of NaCl and 1.6% (w/v) of sugar. The can is then sealed, processed in steam at 115.6 degrees C for 45 min and cooled at 20 degrees C for 20 min. Cans are stored for at least 2 weeks prior to quality evaluation of the canned product. Canning of dry bean seed according to this protocol results in precise estimation of canning quality traits, particularly percent washed drained weight. (c) 2000 Society of Chemical Industry. PMID- 29345795 TI - Combined effect of high pressure, temperature and holding time on polyphenoloxidase and peroxidase activity in banana (Musa acuminata). AB - Polyphenoloxidase and peroxidase enzyme activities were evaluated following combined pressure, temperature and holding time treatment in banana (Musa acuminata). Using pressures of up to 110 MPa, temperatures of up to 70 degrees C and holding times of up to 25 min, based on a 23 central composite design, the interactive effects were found to significantly influence the activity of both enzymes in prepared banana pulp. Temperature and pressure were found to influence the inactivation of polyphenoloxidase separately, while temperature, pressure and holding time were found to influence the loss of peroxidase in the banana, although no significant interactive effects were found. The reduction in polyphenoloxidase activity was found to be less influenced by the combined treatment than peroxidase activity, thought to be due to solubilisation of the enzyme and effects of the soluble solids content. (c) 2000 Society of Chemical Industry. PMID- 29345796 TI - Physicochemical and rheological characteristics of commercial nixtamalised Mexican maize flours for tortillas. AB - Three commercial nixtamalised Mexican maize flours (CNMFs) designated HI-A, HI-B and HI-C were evaluated in this work. For each brand, four samples corresponding to four consecutive months of production were evaluated. Tortillas prepared by the traditional process of nixtamalisation were used as the control. The maize flours and their respective tortillas showed variations between samples in their physical, chemical and rheological parameters. The three commercial maize flours incorporated additives and preservatives. The moisture content, colour, pH, subjective water absorption capacity, water solubility index, water absorption index and swelling capacity of flours showed strong differences between the three CNMFs with respect to the chemical analysis. Important differences in the protein, calcium and amylose contents were observed. Tortillas from CNMFs had a blander maize flavour, less desirable texture and staled more rapidly than traditional tortillas. Some modifications are required in the current Official Mexican Quality Standard, principally in the appropriate selection of additives and levels used in the preparation of CNMFs. (c) 2000 Society of Chemical Industry. PMID- 29345797 TI - Changes in the carotenoid content of apricot (Prunus armeniaca, var Bergeron) during enzymatic browning: beta-carotene inhibition of chlorogenic acid degradation. AB - Considering the numerous beneficial effects in human health ascribed to carotenoids, studies were performed to investigate the modification of carotenoid amount and composition during apricot enzymatic browning. First works on bruised apricot purees have shown a trans-beta-carotene isomerisation (20%) induced by enzymatic browning. To clarify this isomerisation, oxidation of chlorogenic acid in presence of trans-beta-carotene, catalysed by purified apricot polyphenoloxidase (PPO), was followed by HPLC and polarography. Isomerisation rate of trans-beta-carotene in its cis isomer was found to increase with chlorogenic acid concentration. Moreover, trans-beta-carotene was shown to be a potent inhibitor of phenol degradation. This inhibition was partially ascribed to PPO inhibition (non-competitive inhibitor towards phenol with an apparent Ki close to 0.5 mM, a mixed type inhibitor towards oxygen with an apparent Ki close to 0.15 mM). The additional inhibition was explained by non-enzymatic reactions involving trans-beta-carotene and chlorogenic acid o-quinones and leading to phenol regeneration and carotene isomerisation. (c) 2000 Society of Chemical Industry. PMID- 29345798 TI - Clinical impact of pharmacokinetic interactions between the HCV protease inhibitor simeprevir and frequently used concomitant medications. AB - AIMS: Direct-acting antiviral agents (DAAs) for the treatment of hepatitis C (HCV) can be associated with drug-drug interactions (DDIs) with concomitant medications. The practical clinical implications of such DDIs are poorly understood. We assessed the clinical impact of possible pharmacokinetic (PK) interactions between simeprevir and frequently prescribed concomitant medications. METHODS: This post hoc analysis pooled data from nine studies which evaluated simeprevir (SMV)-based interferon-free HCV treatment. Three classes of frequently used concomitant medications of interest (CMOIs) were analysed [antihypertensive drugs (AHDs), anxiolytic drugs (AXDs) and lipid-lowering drugs (LLDs)] and categorized as amber or green according to their DDI potential with SMV (green: no DDIs; amber: potential/known PK interactions). Concomitant medications not recommended to be coadministered with SMV were not included. The composite primary endpoint was defined as the frequency of either discontinuation, interruption or dose modification of the CMOI during 12 weeks of SMV treatment. RESULTS: Few patients met the composite endpoint in the various subgroups. Patients on amber CMOIs tended to experience CMOI modification more often (13.4-19.4%) than those on green CMOIs (3.1-10.8%). There was no difference in the frequency of adverse events between patients taking green and those taking amber CMOIs. CONCLUSIONS: In this large pooled analysis, coadministration of the evaluated commonly prescribed medications with known or potential PK interactions with SMV was manageable and resulted in few adjustments of concomitant medications. Our method could serve as a blueprint for the evaluation of the impact of DDIs. PMID- 29345799 TI - Self-criticism self-report measures: Systematic review. AB - PURPOSE: Self-criticism is a transdiagnostic process that has been attracting research and clinical interest. The accurate measurement of this construct is therefore crucial; however, there are currently numerous measures of self criticism and no guidelines about which to use in different contexts. This systematic review evaluated the measurement properties of self-report questionnaires of self-criticism. METHODS: OvidSP and Web of Science were used to search through multiple databases, and an initial grey literature search was completed. Studies were included when the main focus was to evaluate the measurement properties of English version of scales or subscales that aimed to measure self-criticism in an adult population. Both the methodological quality of included studies and the specific measurement properties were evaluated; these ratings were then combined into a best evidence synthesis. RESULTS: Five scales and five subscales were identified, described in 16 papers. The scales were designed to measure different types of self-criticism including trait or repetitive self-criticism and self-criticism in response to difficult situations or as a mood regulation strategy. The majority of included studies were either rated as having poor methodological quality, or were given indeterminate or negative ratings for the measurement properties they reported. Questionnaire content varied depending on how the authors conceptualized self-criticism. Issues were also highlighted in relation to the checklist used to rate methodological quality. CONCLUSIONS: Tentative recommendations were made about two measures of self-criticism based on existing evidence; future research is required. Furthermore, questionnaire choice should be based on the type of self-criticism being assessed. PRACTITIONER POINTS: Self-criticism has been associated with a range of clinical difficulties including depression and eating disorders and is increasingly the focus of research, including treatment studies directly targeting self-criticism. Since different researchers have conceptualized self criticism differently, a number of self-criticism self-report questionnaires have been developed that vary in terms of design, structure, and content. This systematic review identified and evaluated the measurement properties of self report questionnaires of self-criticism and makes tentative recommendations about their use in clinical and research settings and areas for future research. PMID- 29345800 TI - Haplotype-based genotyping-by-sequencing in oat genome research. AB - In a de novo genotyping-by-sequencing (GBS) analysis of short, 64-base tag-level haplotypes in 4657 accessions of cultivated oat, we discovered 164741 tag-level (TL) genetic variants containing 241224 SNPs. From this, the marker density of an oat consensus map was increased by the addition of more than 70000 loci. The mapped TL genotypes of a 635-line diversity panel were used to infer chromosome level (CL) haplotype maps. These maps revealed differences in the number and size of haplotype blocks, as well as differences in haplotype diversity between chromosomes and subsets of the diversity panel. We then explored potential benefits of SNP vs. TL vs. CL GBS variants for mapping, high-resolution genome analysis and genomic selection in oats. A combined genome-wide association study (GWAS) of heading date from multiple locations using both TL haplotypes and individual SNP markers identified 184 significant associations. A comparative GWAS using TL haplotypes, CL haplotype blocks and their combinations demonstrated the superiority of using TL haplotype markers. Using a principal component-based genome-wide scan, genomic regions containing signatures of selection were identified. These regions may contain genes that are responsible for the local adaptation of oats to Northern American conditions. Genomic selection for heading date using TL haplotypes or SNP markers gave comparable and promising prediction accuracies of up to r = 0.74. Genomic selection carried out in an independent calibration and test population for heading date gave promising prediction accuracies that ranged between r = 0.42 and 0.67. In conclusion, TL haplotype GBS derived markers facilitate genome analysis and genomic selection in oat. PMID- 29345802 TI - The EAA International Quality Control Programme for Y-Chromosomal Microdeletions. PMID- 29345801 TI - Individual psychological therapy in an acute inpatient setting: Service user and psychologist perspectives. AB - OBJECTIVES: The acute inpatient setting poses potential challenges to delivering one-to-one psychological therapy; however, there is little research on the experiences of both receiving and delivering therapies in this environment. This qualitative study aimed to explore service users' and psychologists' experiences of undertaking individual therapy in acute inpatient units. It focused on the relationship between service users and psychologists, what service users found helpful or unhelpful, and how psychologists attempted to overcome any challenges in delivering therapy. DESIGN: The study used a qualitative, interview-based design. METHODS: Eight service users and the six psychologists they worked with were recruited from four acute inpatient wards. They participated in individual semi-structured interviews eliciting their perspectives on the therapy. Service users' and psychologists' transcripts were analysed together using Braun and Clarke's (2006, Qualitative Research in Psychology, 3, 77) method of thematic analysis. RESULTS: The accounts highlighted the importance of forming a 'human' relationship - particularly within the context of the inpatient environment - as a basis for therapeutic work. Psychological therapy provided valued opportunities for meaning-making. To overcome the challenges of acute mental health crisis and environmental constraints, psychologists needed to work flexibly and creatively; the therapeutic work also extended to the wider context of the inpatient unit, in efforts to promote a shared understanding of service users' difficulties. CONCLUSIONS: Therapeutic relationships between service users and clinicians need to be promoted more broadly within acute inpatient care. Psychological formulation can help both service users and ward staff in understanding crisis and working collaboratively. Practice-based evidence is needed to demonstrate the effectiveness of adapted psychological therapy models. PRACTITIONER POINTS: Developing 'human' relationships at all levels of acute inpatient care continues to be an important challenge for clinical practice. Due to the distress of individuals and the constraints of the acute inpatient environment, psychologists need to be flexible and adaptable in delivering individual therapy. Making meaning and psychological formulation can give service users a sense of hope and empowerment, and can contribute to a shared understanding within the ward team of service users' difficulties. PMID- 29345803 TI - Effects of mindfulness-based cognitive therapy on shame, self-compassion and psychological distress in anxious and depressed patients: A pilot study. AB - OBJECTIVES: The tendency to experience shame or guilt is associated differentially with anxiety and depression, with shame being associated with greater psychopathology. Correlational studies have shown self-compassion to be related to lower shame and rumination, and mindfulness-based interventions increase self-compassion. Therefore, mindfulness-based interventions may decrease shame. This pilot study aimed to assess the association of shame, rumination, self-compassion, and psychological distress and the effects of a mindfulness based intervention on these measures in a clinical sample. DESIGN: Single-group design with pre-test and post-test measures. METHOD: Thirty-two service users who experienced clinically diagnosed depressive or anxiety disorders in a mindfulness based cognitive therapy programme were assessed before and twenty-two after therapy with measures of shame-proneness, external shame, rumination, self compassion, and psychological distress. RESULTS: Shame-proneness and external shame were positively correlated with self-coldness, and external shame was positively correlated with stress and depressive symptoms. Self-compassion increased and self-coldness decreased, while shame-proneness, rumination, anxiety, and stress symptoms decreased from pre- to post-treatment. There was no significant reduction in depressive symptoms, guilt-proneness, or external shame. CONCLUSION: Our preliminary findings suggest that mindfulness-based approaches may be helpful in increasing self-compassion and reducing shame-proneness in mixed groups of anxious and depressed patients. Controlled studies of the effects of mindfulness-based interventions on shame in clinical populations are warranted. PRACTITIONER POINTS: Shame-proneness and external shame showed different patterns of relationship with depressive and stress symptoms and with self-compassion. Shame-proneness decreased to a greater extent than external shame decreased following participation in an MBCT group. Mindfulness-based interventions may benefit shame-proneness to a greater extent than external shame. PMID- 29345804 TI - MoP Nanoparticles Supported on Indium-Doped Porous Carbon: Outstanding Catalysts for Highly Efficient CO2 Electroreduction. AB - Electrochemical reduction of CO2 into value-added product is an interesting area. MoP nanoparticles supported on porous carbon were synthesized using metal-organic frameworks as the carbon precursor, and initial work on CO2 electroreduction using the MoP-based catalyst were carried out. It was discovered that MoP nanoparticles supported on In-doped porous carbon had outstanding performance for CO2 reduction to formic acid. The Faradaic efficiency and current density could reach 96.5 % and 43.8 mA cm-2 , respectively, when using ionic liquid 1-butyl-3 methylimidazolium hexafluorophosphate as the supporting electrolyte. The current density is higher than those reported up to date with very high Faradaic efficiency. The MoP nanoparticles and the doped In2 O3 cooperated very well in catalyzing the CO2 electroreduction. PMID- 29345805 TI - Is the widely used two-factor structure of the Ruminative Responses Scale invariant across different samples of women? AB - OBJECTIVES: Although the Ruminative Responses Scale is one of the most widely used measures of rumination, its two-factor structure remains controversial. Taking this into account, we aimed to test the RRS-10 two-factor invariance (Brazilian version) between different samples of women and to study its internal consistency and convergent validity. METHODS: A sample of 321 women (general population, n = 106; college students, n = 115; and medical population of patients with overweight and obesity, n = 100) participated in the study. The two factor structure of RRS-10 was assessed by CFA and multigroup analysis using Mplus software. Internal consistency was assessed by Cronbach's alpha and the convergent validity by Pearson correlations. RESULTS: The two-factor structure of RRS-10 showed a good fit, factorial invariance across three samples, good internal consistency, and adequate convergent validity. Brooding and Reflection subscales were both positively correlated with psychological inflexibility, cognitive fusion, anxiety, depression, and stress symptoms, although Brooding presented significantly stronger associations with these variables than Reflection. CONCLUSIONS: This study provides further discussion and evidence regarding the RRS-10 two-factor structure, as well as a valid version of RRS-10 to use in Brazil in order to reliably assess rumination in medical and research settings. PRACTITIONER POINTS: This is the first study to test and confirm the RRS two-factor structure invariance across groups. RRS-10 two-dimensionality was confirmed in medical and non-medical samples of women. Brooding subscale showed significantly stronger relationships with psychopathology and experiential avoidance than Reflection. The study provides evidence that RRS can be used as a valid and sound measure to accurately assess the clinically relevant dimensions of rumination simultaneously across distinct groups. PMID- 29345806 TI - Response to Dr. Finucane. PMID- 29345807 TI - Targeting a Dark Excited State of HIV-1 Nucleocapsid by Antiretroviral Thioesters Revealed by NMR Spectroscopy. AB - HIV-1 nucleocapsid (NCp7) is a two Cys2 HisCys zinc knuckle (N-Zn and C-Zn) protein that plays a key role in viral replication. NCp7 conformational dynamics is characterized by NMR relaxation dispersion and chemical exchange saturation transfer measurements. While the N-Zn knuckle is conformationally stable, the C Zn knuckle interconverts on the millisecond timescale between the major state, in which the zinc is coordinated by three cysteines and a histidine, and two folded minor species (with populations around 1 %) in which one of the coordination bonds (Cys413-Sgamma-Zn or His421-Nepsilon2-Zn) is hydrolyzed. These findings explain why antiretroviral thioesters specifically disrupt the C-Zn knuckle by initial acylation of Cys413, and show that transient, sparsely-populated ("dark"), excited states of proteins can present effective targets for rational drug design. PMID- 29345808 TI - Immune protective effects of chitooligosaccharides on mice genital tract infected by Chlamydia trachomatis. AB - PROBLEM: The immune protective effects of chitooligosaccharides (COs) on mouse genital tract infected by Chlamydia trachomatis (Ct) were unknown. METHODS: The minimum effective/infective dose was obtained by establishing the murine model of the genital tract infected by Ct. The model mice were treated with different doses (0.1, 0.2, and 0.3 g/kg,) of COs and 0.9% saline, and the serum immunoglobulin G (IgG) antibody and interleukin (IL)-11 levels were then assayed. The healthy mice were used as the control. After 1 week of immunity, a double effective/infective dose of Ct was used to attack the genital tract. After 10 days of experiment, the mice were killed, their spleen and thymus indexes were determined, and the pathological changes in their genital tract were evaluated. RESULTS: Treatment with COs increased the serum IgG antibody, IL-11 levels, and spleen and thymus indexes but decreased the positive infection rate and inclusion body formation with Ct. CONCLUSION: COs could induce immune protection on the Ct infected mouse genital tract and might be used as an alternative drug for the treatment of genital tract infected with Ct. PMID- 29345809 TI - Peroxisomes in lipid metabolism. AB - Gene targeting and the elucidation of mutations underlying inherited peroxisomal diseases have provided new insights in peroxisomal lipid metabolism in vivo. The work led to the identification of a novel peroxisomal beta-oxidation pathway and established clearly that genes, which are required for efficient peroxisomal oxidation of fatty acids, at the same time are key regulators of PPARalpha function in vivo. The new mouse models may provide helpful tools in the search for unknown natural PPARalpha agonists and in screening for in vivo PPARalpha antagonists. J. Cell Biochem. Suppls. 30/31:158-167, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345810 TI - Communication between the cell membrane and the nucleus: Role of protein compartmentalization. AB - Understanding how the information is conveyed from outside to inside the cell is a critical challenge for all biologists involved in signal transduction. The flow of information initiated by cell-cell and cell-extracellular matrix contacts is mediated by the formation of adhesion complexes involving multiple proteins. Inside adhesion complexes, connective membrane skeleton (CMS) proteins are signal transducers that bind to adhesion molecules, organize the cytoskeleton, and initiate biochemical cascades. Adhesion complex-mediated signal transduction ultimately directs the formation of supramolecular structures in the cell nucleus, as illustrated by the establishment of multi complexes of DNA-bound transcription factors, and the redistribution of nuclear structural proteins to form nuclear subdomains. Recently, several CMS proteins have been observed to travel to the cell nucleus, suggesting a distinctive role for these proteins in signal transduction. This review focuses on the nuclear translocation of structural signal transducers of the membrane skeleton and also extends our analysis to possible translocation of resident nuclear proteins to the membrane skeleton. This leads us to envision the communication between spatially distant cellular compartments (i.e., membrane skeleton and cell nucleus) as a bidirectional flow of information (a dynamic reciprocity) based on subtle multilevel structural and biochemical equilibria. At one level, it is mediated by the interaction between structural signal transducers and their binding partners, at another level it may be mediated by the balance and integration of signal transducers in different cellular compartments. J. Cell. Biochem. Suppls. 30/31:250-263, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345811 TI - Osteopontin expression and function: Role in bone remodeling. AB - The cytokine and cell attachment protein osteopontin (OPN) is not necessary for the development and survival of mice in a clean animal facility. The primary role of OPN appears to be that of facilitating recovery of the organism after injury or infection, which generally causes an increase in its expression. It also is essential for some forms of bone remodeling. OPN stimulates cellular signaling pathways via various receptors found on most cell types and can encourage cell migration. OPN modulates immune and inflammatory responses and possibly negatively regulates Ras signaling pathways. Its apparent ability to enhance cell survival by inhibiting apoptosis may explain why the metastatic proficiency of tumor cells increases with increased OPN expression. J. Cell. Biochem. Suppls. 30/31:92-102, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345812 TI - Role of histone deacetylases in acute leukemia. AB - Accumulating evidence points to a connection between cancer and transcriptional control by histone acetylation and deacetylation. This is particularly true with regard to the acute leukemias, many of which are caused by fusion proteins that have been created by chromosomal translocations. Genetic rearrangements that disrupt the retinoic acid receptor-alpha and acute myeloid leukemia-1 genes create fusion proteins that block terminal differentiation of hematopoietic cells by repressing transcription. These fusion proteins interact with nuclear hormone co-repressors, which recruit histone deacetylases to promoters to repress transcription. This finding suggests that proteins within the histone deacetylase complexes may be potential targets for pharmaceutical intervention in many leukemia patients. J. Cell. Biochem. Suppls. 30/31:194-202, 1998. (c) 1998 Wiley Liss, Inc. PMID- 29345813 TI - High throughput analysis of differential gene expression. AB - Elucidation of the changes in gene expression associated with biological processes is a central problem in biology. Advances in molecular and computational biology have led to the development of powerful, high-thoughput methods for the analysis of differential gene expression. These tools have opened up new opportunities in disciplines ranging from cell and developmental biology to drug development and pharmacogenomics. In this review, the attributes of five commonly used differential gene expression methods are discussed: expressed sequence tag (EST) sequencing, cDNA microarray hybridization, subtractive cloning, differential display, and serial analysis of gene expression (SAGE). The application of EST sequencing and microarray hybridization is illustrated by the discovery of novel genes associated with osteoblast differentiation. The application of subtractive cloning is presented as a tool to identify genes regulated in vivo by the transcription factor pax-6. These and other examples illustrate the power of genomics for discovering novel genes that are important in biology and which also represent new targets for drug development. The central theme of the review is that each of the approaches to identifying differentially expressed genes is useful, and that the experimental context and subsequent evaluation of differentially expressed genes are the critical features that determine success. J. Cell. Biochem. Suppls. 30/31:286-296, 1998. (c) 1998 Wiley Liss, Inc. PMID- 29345814 TI - Promiscuous subunit interactions: A possible mechanism for the regulation of protein kinase CK2. AB - Protein kinase CK2 is a ubiquitous eukaryotic ser/thr protein kinase. The active holoenzyme is a heterotetrameric protein composed of catalytic (alpha and alpha') and regulatory (beta) subunits that phosphorylates many different protein substrates and appears to be involved in the regulation of cell division. Despite important structural studies, the intimate details of the interactions of the alpha catalytic subunits with the beta regulatory subunits are unknown. Recent evidence that indicates that both CK2 subunits can interact promiscuously with other proteins in a manner that excludes the binding of their complementary CK2 partners has opened the possibility that the phosphorylating activity of this enzyme may be regulated in a novel way. These alternative interactions could limit the in vivo availability of CK2 subunits to generate fully active holoenzyme CK2 tetramers. Likewise, variations in the ratio of alpha- and beta subunits could determine the activity of several phosphorylating and dephosphorylating activities. The promiscuity of the CK2 subunits can be extrapolated to a more widespread phenomenon in which "wild-card" proteins could act as general switches by interacting and regulating several catalytic activities. J. Cell. Biochem. Suppls. 30/31:129-136, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345815 TI - In search of cellular control: Signal transduction in context. AB - The field of molecular cell biology has experienced enormous advances over the last century by reducing the complexity of living cells into simpler molecular components and binding interactions that are amenable to rigorous biochemical analysis. However, as our tools become more powerful, there is a tendency to define mechanisms by what we can measure. The field is currently dominated by efforts to identify the key molecules and sequences that mediate the function of critical receptors, signal transducers, and molecular switches. Unfortunately, these conventional experimental approaches ignore the importance of supramolecular control mechanisms that play a critical role in cellular regulation. Thus, the significance of individual molecular constituents cannot be fully understood when studied in isolation because their function may vary depending on their context within the structural complexity of the living cell. These higher-order regulatory mechanisms are based on the cell's use of a form of solid-state biochemistry in which molecular components that mediate biochemical processing and signal transduction are immobilized on insoluble cytoskeletal scaffolds in the cytoplasm and nucleus. Key to the understanding of this form of cellular regulation is the realization that chemistry is structure and hence, recognition of the importance of architecture and mechanics for signal integration and biochemical control. Recent work that has unified chemical and mechanical signaling pathways provides a glimpse of how this form of higher-order cellular control may function and where paths may lie in the future. J. Cell. Biochem. Suppls. 30/31:232-237, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345816 TI - Initiation of DNA replication in eukaryotic chromosomes. AB - Our understanding of the process by which eukaryotes regulate initiation of DNA replication has made remarkable advances in the past few years, thanks in large part to the explosion of genetic and biochemical information on the budding yeast, Saccharomyces cerevisiae. At least three major concepts have emerged: 1) The sequence of molecular events that determines when replication begins and how frequently each replication site is used are conserved among most, if not all, eukaryotes; 2) specific replication origins are used in most, if not all, eukaryotes that consist of a flexible modular anatomy; and 3) epigenetic factors such as chromatin structure and nuclear organization determine which of many potential replication origins are used at different stages in animal development. Thus, the current state of our knowledge suggests a simple unifying concept-all eukaryotes utilize the same basic proteins and DNA sequences to initiate replication, but the metazoa can change both the number and locations of replication origins in response to the demands of animal development. J. Cell. Biochem. Suppls. 30/31:8-17, 1998. PMID- 29345817 TI - Intranuclear targeting of DNA replication factors. AB - Mammalian nuclei are highly organized into functional compartments. Major nuclear processes like DNA replication and RNA processing take place in distinct foci. These microscopically visible foci are formed by the assembly of, for example, DNA replication factors and associated proteins into megadalton complexes often referred to as protein machines or factories. Thus far, two proteins, DNA ligase I and DNA methyltransferase (DNA MTase), have been analyzed in greater detail. In both cases, the assembly process appears to be controlled by distinct targeting sequences that were attached to the catalytic protein core in the course of evolution and mediate the association with replication factories in mammalian cells. The dynamics of these nuclear structures throughout the cell cycle are analyzed using green fluorescent protein (GFP). Further studies are needed to elucidate the architecture, regulation, and role of these subnuclear structures. J. Cell. Biochem. Suppls. 30/31:243-249, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345818 TI - Biomineralization: Conflicts, challenges, and opportunities. AB - Biomineralization is the process by which mineral crystals are deposited in an organized fashion in the matrix (either cellular or extracellular) of living organisms. Over the past 25 years, new insights into the mechanisms that control these processes have been obtained, yet questions asked then still persist, especially in terms of vertebrate mineralization. Specifically, there are still debates concerning the chemical nature of the first mineral crystals formed in bone, dentin, and cementum; the factors leading to the initial deposition of these crystals; and the functions of macromolecules found associated with these crystals. In this review, emphasis is placed on the currently accepted answers to these questions, drawing insight from nonvertebrate systems. It is suggested that there are redundant calcification mechanisms and that, by taking advantage of our current knowledge of these mechanisms, opportunities will be provided for therapeutic manipulation of diseases in which biomineralization is impaired. J. Cell. Biochem. Suppls. 30/31:83-91, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345819 TI - Steroid receptors at the nexus of transcriptional regulation. AB - During the past few years, our understanding of nuclear receptor action has dramatically improved as a result of the identification and functional analysis of co-regulators such as factors involved in chromatin remodeling, transcription intermediary factors (co-repressors and co-activators), and direct interactions with the basal transcriptional machinery. Furthermore, the elucidation of the crystal structures of the empty ligand-binding domains of the nuclear receptor and of complexes formed by the nuclear receptor's ligand-binding domain bound to agonists and antagonists has contributed significantly to our understanding of the early events of nuclear receptor action. However, the picture of hormone- and hormone receptor-mediated mechanisms of gene regulation remain incomplete and extremely complicated when one also considers the "nontraditional" interactions of hormone-activated nuclear receptors, for example, interactions between the activated steroid receptors and components of the chromatin/nuclear matrix; and finally the nongenomic effects that steroid hormones can exhibit with other signaling pathways. In this prospectus on steroid receptors, we discuss the implications of various steroid hormone and nuclear receptor interactions and potential future directions of investigation. J. Cell. Biochem. Suppls. 30/31:185 193, 1998. (c) 1999 Wiley-Liss, Inc. PMID- 29345820 TI - Marrow stromal cells as stem cells for continual renewal of nonhematopoietic tissues and as potential vectors for gene therapy. PMID- 29345821 TI - Oligosaccharide signaling of plant cells. AB - A variety of oligosaccharide signals have been identified that function in the regulation of plant development, defense, and other interactions of plants with the environment. Some of these oligosaccharides are produced by various pathogens or symbionts, whereas others are synthesized by the plant itself. This mini review summarizes our present state of information on these oligosaccharide signals and provides an overview of approaches being used to identify receptors for these signals and gain an understanding of the mechanism(s) by which these signals activate downstream events. Possible biotechnological applications of future work in this field are also considered. J. Cell. Biochem. Suppls. 30/31:123-128, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345823 TI - Color section. PMID- 29345822 TI - Linkages of nuclear architecture to biological and pathological control of gene expression. AB - Functional interrelationships between components of nuclear architecture and control of gene expression are becoming increasingly evident. There is growing appreciation that multiple levels of nuclear organization integrate the regulatory cues that support activation and suppression of genes as well as the processing of gene transcripts. The linear organization of genes and promoter elements provide the potential for responsiveness to physiological regulatory signals. Parameters of chromatin structure and nucleosome organization support synergism between activities at independent regulatory sequences and render promoter elements accessible or refractory to transcription factors. Association of genes, transcription factors, and the machinery for transcript processing with the nuclear matrix facilitates fidelity of gene expression within the three dimensional context of nuclear architecture. Mechanisms must be defined that couple nuclear morphology with enzymatic parameters of gene expression. The recent characterization of factors that mediate chromatin remodeling and intranuclear targeting signals that direct transcription factors to subnuclear domains where gene expression occurs, reflect linkage of genetic and structural components of transcriptional control. Nuclear reorganization and aberrant intranuclear trafficking of transcription factors for developmental and tissue specific control that occurs in tumor cells and in neurological disorders provides a basis for high resolution diagnostics and targeted therapy. J. Cell. Biochem. Suppls. 30/31:220-231, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345824 TI - The S phase: Beginning, middle, and end: A perspective. AB - Events in the S phase of the cell cycle have been investigated to a relatively limited extent in comparison with those in G1 and M phases. Four aspects of S are briefly discussed in this report: (1) the final biochemical step permitting initiation of DNA synthesis, (2) determination of replication timing of individual genes and its mechanism, (3) S phase processes that lead to the onset of M phase, and (4) resetting the S-phase machinery. J. Cell. Biochem. Suppls. 30/31:1-7, 1998. (c) 1999 Wiley-Liss, Inc. PMID- 29345825 TI - Bone stem cells. AB - Osteoblasts are the skeletal cells responsible for synthesis, deposition, and mineralization of the extracellular matrix of bone. By mechanisms that are only beginning to be understood, stem and primitive osteoprogenitors and related mesenchymal precursors arise in the embryo and at least some appear to persist in the adult organism, where they contribute to replacement of osteoblasts in bone turnover and in fracture healing. In this paper, the nature of these cells, whether they constitute a stem cell pool or a committed progenitor pool, and aspects of their apparent plasticity are discussed. Current understanding of differential expression of osteoblast-associated genes during osteoprogenitor proliferation and differentiation to mature matrix synthesizing osteoblasts is summarized. Finally, evidence is discussed that supports the hypothesis that the mature osteoblast phenotype is heterogeneous with subpopulations of osteoblasts expressing only subsets of the known osteoblast markers, raising also the possibility of multiple parallel differentiation pathways and perhaps even different progenitor pools. J. Cell. Biochem. Suppls. 30/31:73-82, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345826 TI - Nucleosome and chromatin structures and functions. PMID- 29345827 TI - The ongoing saga of osteoporosis treatment. PMID- 29345828 TI - Signal transduction by transforming growth factor-beta: A cooperative paradigm with extensive negative regulation. AB - Transforming growth factor-beta (TGF-beta) represents an evolutionarily conserved family of secreted factors that mobilize a complex signaling network to control cell fate by regulating proliferation, differentiation, motility, adhesion, and apoptosis. TGF-beta promotes the assembly of a cell surface receptor complex composed of type I (TbetaRI) and type II (TbetaRII) receptor serine/threonine kinases. In response to TGF-beta binding, TbetaRII recruits and activates TbetaRI through phosphorylation of the regulatory GS-domain. Activated TbetaRI then initiates cytoplasmic signaling pathways to produce cellular responses. SMAD proteins together constitute a unique signaling pathway with key roles in signal transduction by TGF-beta and related factors. Pathway-restricted SMADs are phosphorylated and activated by type I receptors in response to stimulation by ligand. Once activated, pathway-restricted SMADs oligomerize with the common mediator Smad4 and subsequently translocate to the nucleus. Genetic analysis in Drosophila melanogaster and Caenorhabditis elegans, as well as TbetaRII and SMAD mutations in human tumors, emphasizes their importance in TGF-beta signaling. Mounting evidence indicates that SMADs cooperate with ubiquitous cytoplasmic signaling cascades and nuclear factors to produce the full spectrum of TGF-beta responses. Operating independently, these ubiquitous elements may influence the nature of cellular responses to TGF-beta. Additionally, a variety of regulatory schemes contribute temporal and/or spatial restriction to TGF-beta responses. This report reviews our current understanding of TGF-beta signal transduction and considers the importance of a cooperative signaling paradigm to TGF-beta-mediated biological responses. J. Cell. Biochem. Suppls. 30/31:111-122, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345829 TI - Macromolecular exchanges between the nucleus and cytoplasm. AB - The control of transcription and translation is of fundamental importance in cell biology. In this regard, the nuclear envelope is in a unique position to contribute to the regulation of these events, by directing macromolecular exchanges between the nucleus and cytoplasm. Such exchanges occur through the nuclear pore complexes, mainly by signal-mediated processes. Different signals are required for import and export. Specific cytoplasmic or nuclear receptors initially bind the signal-containing substrate, and the complex subsequently interacts with the pores. Additional factors then assist in translocation across the envelope. Current research is focused mainly on further characterization of transport receptors, translocation factors, as well as components of the nuclear pore complex, i.e., the nucleoporins. The ultimate goal is to understand the molecular interactions that occur among the different components of the transport apparatus, the energy sources for transport, and how variations in transport capacity are generated. J. Cell. Biochem. Suppls. 30/31:214-219, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345830 TI - DNA vaccines: Vector design, delivery, and antigen presentation. AB - Inoculations with antigen-expressing plasmid DNAs (DNA vaccines) in the production of protective immune responses. Since the initial development of DNA vaccines more than 5 years ago, major strides have been made in the design of efficient vaccine vectors and in the process of vaccine delivery. However, many questions remain regarding the mechanism of cellular transfection and in the development of immune responses. This review addresses functional aspects of DNA vaccines, including vector design and delivery, as well as cellular transfection and antigen presentation. J. Cell. Biochem. Suppls. 30/31:304-311, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345831 TI - Signaling mechanisms and molecular characteristics of G protein-coupled receptors for lysophosphatidic acid and sphingosine 1-phosphate. AB - Lysophosphatidic acid (LPA) and sphingosine 1-phosphate (S1P) are potent phospholipid mediators with diverse biological activities. Their appearance and functional properties suggest possible roles in development, wound healing, and tissue regeneration. The growth-stimulating and other complex biological activities of LPA and S1P are attributable in part to the activation of multiple G protein-mediated intracellular signaling pathways. Several heterotrimeric G proteins, as well as Ras- and Rho-dependent pathways play central roles in the cellular responses to LPA and S1P. Recently, several G protein-coupled receptors encoded by a family of endothelial differentiation genes (edg) have been shown to bind LPA or S1P and transduce responses of cAMP, Ca2+ , MAP kinases, Rho, and gene transcription. This review summarizes our current understanding of signaling pathways critical for cellular responses to LPA and S1P and of recent progress in the molecular biological analyses of the Edg receptors. J. Cell. Biochem. Suppls. 30/31:147-157, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345832 TI - Introduction. PMID- 29345833 TI - Osteocalcin gene promoter: Unlocking the secrets for regulation of osteoblast growth and differentiation. AB - The bone tissue-specific osteocalcin gene remains one of a few genes that exhibits osteoblast-restricted expression. Over the last decade, characterization of the promoter regulatory elements and complexes of factors that control suppression of the osteocalcin gene in osteoprogenitor cells and transactivation in mature osteoblasts has revealed transcriptional regulatory mechanisms that mediate development of the osteoblast phenotype. In this review, we have focused on emerging concepts related to molecular mechanisms supporting osteoblast growth and differentiation based on the discoveries that the osteocalcin gene is regulated by homeodomain factors, AP-1 related proteins, and the bone restricted Cbfa1/AML3 transcription factor. J. Cell. Biochem. Suppls. 30/31:62-72, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345834 TI - A role for cadherins in cellular signaling and differentiation. AB - Cadherins form a family of cell-cell adhesion proteins that are critical to normal embryonic development. Expression of the various family members is regulated in a complex pattern during embryogenesis. Both reduced and inappropriate expression of cadherins have been associated with abnormal tissue formation in embryos and tumorigenesis in mature organisms. Evidence is accumulating that signals unique to individual members of the cadherin family, as well as signals common to multiple cadherins, contribute to the differentiated phenotype of various cell types. While a complete understanding of the regulation of cadherin expression of the molecular nature of intracellular signaling downstream of cadherin adhesion is essential to an understanding of embryogenesis and tumorigenesis, our knowledge in both areas is inadequate. Clearly, elucidating the factors and conditions that regulate cadherin expression and defining the signaling pathways activated by cadherins are frontiers for future research. J. Cell. Biochem. Suppls. 30/31:168-176, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345835 TI - Translocations, fusion genes, and acute leukemia. AB - Genes involved in chromosomal translocations, associated with the formation of fusion proteins in leukemia, are modular in nature and regulatory in function. It is likely that they are involved in the initiation and maintenance of normal hematopoiesis. A conceptual model is proposed by which disruption of these different genes leads to the development of acute leukemia. Central to this model is the functional interaction between the mammalian trithorax and polycomb group protein complexes. Many of the genes identified in leukemia-associated translocations are likely upstream regulators, co-participators or downstream targets of these complexes. In the natural state, these proteins interact with each other to form multimeric higher-order structures, which sequentially regulate the development of the normal hematopoietic state, either through HOX gene expression or other less defined pathways. The novel interaction domains acquired by the chimaeric fusion products subvert normal cellular control mechanisms, which result in both a failure of cell maturation and activation of anti-apoptotic pathways. The mechanisms by which these translocation products are able to affect these processes are thought to lie at the level of chromatin mediated transcriptional activation and/or repression. The stimuli for proliferation and development of clinically overt disease may require subsequent mutations in more than one oncogene or tumor suppressor gene, or both. A more comprehensive catalogue of mutation events in malignant cells is therefore required to understand the key regulatory networks that serve to maintain multipotentiality and in particular the modifications which initiate and coordinate commitment in differentiating hematopoietic cells. We propose a model in which common pathways for leukemogenesis lie along the cell cycle control of chromatin structure in terms of transcriptional activation or repression. A clearer understanding of this cascade will provide opportunities for the design and construction of novel biological agents that are able to restore normal regulatory mechanisms. J. Cell. Biochem. Suppls. 30/31:264-276, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345836 TI - Regulation of intracellular membrane interactions: Recent progress in the field of neurotransmitter release. AB - Maintenance of compartmental independence and diversity is part of the blueprint of the eukaryotic cell. The molecular composition of every organelle membrane is custom tailored to fulfill its unique tasks. It is retained by strict sorting and directional transport of newly synthesized cellular components by the use of specific transport vesicles. Temporally and spatially controlled membrane fission and fusion steps thus represent the basic process for delivery of both, membrane bound and soluble components to their appropriate destination. This process is fundamental to cell growth, organelle inheritance during cell division, uptake and intracellular transport of membrane-bound and soluble molecules, and neuronal communication. The latter process has become one of the best studied examples in terms of regulatory mechanisms of membrane interactions. It has been dissected into the stages of transmitter vesicle docking, priming, and fusion: Specificity of membrane interactions depends on interactions between sets of organelle specific membrane proteins. Priming of the secretory apparatus is an ATP dependent process involving proteins and membrane phospholipids. Release of vesicle content is triggered by a rise in intracellular free Ca2+ levels that relieves a block previously established between the membranes poised to fuse. Neurotransmitter release is a paradigm of highly regulated intracellular membrane interaction and molecular mechanisms for this phenomenon begin to be delineated. J. Cell. Biochem. Suppls. 30/31:103-110, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345837 TI - Regulation and regulatory parameters of histone modifications. AB - Histone acetylation and phosphorylation destablizes nucleosome and chromatin structure. Relaxation of the chromatin fiber facilitates transcription. Coactivator complexes with histone acetyltransferase activity are recruited by transcription factors bound to enhancers or promoters. The recruited histone acetyltransferases may acetylate histone or nonhistone chromosomal proteins, resulting in the relaxation of chromatin structure. Alternatively, repressors recruit corepressor complexes with histone deacetylase activity, leading to condensation of chromatin.This review highlights the recent advances made in our understanding of the roles of histone acetyltransferases, histone deacetylases, histone kinases, and protein phosphatases in transcriptional activation and repression. Exciting reports revealing mechanistic connections between histone modifying activities and the RNA polymerase II machinery, the coupling of histone deacetylation and DNA methylation, the possible involvement of histone deacetylases in the organization of nuclear DNA, and the role of chromatin modulators in oncogenesis are discussed. J. Cell. Biochem. Suppls. 30/31:203-213, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345838 TI - Tissue engineering: The first decade and beyond. AB - This article reviews the important developments in the field of tissue engineering over the last 10 years. Research in the area of biomaterials is examined from the perspective of providing the foundation for the development of tissue engineering. Early efforts combining cells with biocompatible materials are described and applications of this technology presented, with particular focus on uses in orthopaedics and maxillofacial surgery. The basic principles of tissue engineering and state-of-the-art technology in cell biology and materials science as used currently in the field are presented. Finally, futures challenges are outlined from the perspective of integrating technologies from medicine, biology, and engineering, in hopes of translating tissue engineering to clinical applications. J. Cell. Biochem. Suppls. 30/31:297-303, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345839 TI - G-protein regulatory pathways: Rocketing into the twenty-first century. AB - Complex cellular responses involve the integration of heterotrimeric G protein systems with protein kinase signal transduction pathways. Key in this integration is the control of small GTP-binding proteins including Ras and Rho family members. In this paper, we discuss the control of signal transduction pathways by G proteins and their integration with specific tyrosine kinases. The integration of G proteins, kinases, and small GTP-binding proteins in controlling cellular responses is illustrated through the newly defined Galpha12/13 -regulated pathways. Furthermore, the polymorphonuclear leukocyte provides a primary cell system for analyzing the integration of G proteins, kinases, and small GTP binding proteins in controlling cellular functions such as superoxide production, adherence, chemotaxis, and granule secretion. J. Cell. Biochem. Suppls. 30/31:137 146, 1998. (c) 1998 Wiley-Liss, Inc. PMID- 29345840 TI - The new paradigm: Integrating genomic function and nuclear architecture. AB - A new view of the cell nucleus is emerging based on the functional dynamics of nuclear architecture. The striking structural preservation of a variety of genomic processes on the nuclear matrix provides an important approach for correlating nuclear form and function. In situ labeling coupled with three dimensional microscopy and computer imaging techniques shows that DNA replication and transcription sites are organized into higher-order units, or "zones," in the cell nucleus. The dynamic interplay and "re-zoning" of replication and transcription regions during the cell cycle may form the structural basis for the elaborate global coordination of replicational and transcriptional programs in the mammalian cell. J. Cell. Biochem. Suppls. 30/31:238-242, 1998. (c) 1998 Wiley Liss, Inc. PMID- 29345841 TI - Effects of high-impact exercise on the physical properties of bones of ovariectomized rats fed to a high-protein diet. AB - The aim of this study was to evaluate the effects of high-impact physical exercise as a prophylactic and therapeutic means in osteopenic bones of rats submitted to ovariectomy and protein diet intake. A total of 64 Wistar rats were divided into eight groups (n = 8 each), being: OVX, ovx, standard diet and sedentary; OVXE, ovx, standard diet and jump; OVXP, ovx, high-protein diet and sedentary; and OVXEP, ovx, high-protein diet and jump; SH, sham, standard diet and sedentary; SHE, sham, standard diet and jump; SHP, sham, high-protein diet and sedentary; and SHEP, sham, high-protein diet and jump. OVX surgery consists of ovariectomy, and sham was the control surgery. The jumping protocol consisted of 20 jumps/day, 5 days/week. The bone structure was evaluated by densitometry, mechanical tests, histomorphometric, and immunohistochemical analyses. A high protein diet resulted in increased bone mineral density (P = .049), but decreased maximal load (P = .026) and bone volume fraction (P = .023). The benefits of physical exercise were demonstrated by higher values of the maximal load in the trained groups compared to the sedentary groups (P < .001). The sham groups had decreased immunostaining of osteocalcin (P = .004) and osteopontin (P = .010) compared to ovx groups. However, the high-protein diet (P = .005) and jump exercise (P = .017) resulted in lower immunostaining of osteopontin compared to the standard diet and sedentary groups, respectively. In this experimental model, it was concluded that ovariectomy and a high-fat diet can negatively affect bone tissue and the high-impact exercise was not enough to suppress the deleterious effects caused by the protein diet and ovariectomy. PMID- 29345843 TI - Does the Use of Epiduroscopic Lysis of Adhesions Reduce the Need for Spinal Cord Stimulation in Failed Back Surgery Syndrome? A Short-Term Pilot Study. AB - BACKGROUND AND AIMS: Persistent low back pain after initially successful surgery that is not attributed to structural deficits is called failed back surgery syndrome (FBSS). When conservative and minimal invasive therapy fail, the recommended treatment is spinal cord stimulation (SCS). Because epidural fibrosis can be a contributing factor in the majority of FBSS patients, lumbosacral epiduroscopic lysis of adhesions may be considered as a less invasive alternative treatment option. We hypothesized that the use of epiduroscopic lysis of adhesions could reduce the need for SCS. METHODS: A pilot study was performed in 35 consecutive patients with FBSS who underwent epiduroscopic lysis of adhesions. SCS was considered if epiduroscopic lysis of adhesions gave less than 50% global perceived effect (GPE) improvement after 15 months of follow-up. The GPE was measured 1 week and 6 months after the procedure. RESULTS: Over a period of 69 months, 35 patients were included. After 15 months of follow-up, 43% of patients required SCS. Eight of the 15 patients who reported no short-term improvement needed SCS; those patients had severe epidural fibrosis. One week after epiduroscopic lysis of adhesions, 34%, 23%, and 43% of patients reported GPE improvement of > 50%, 20% to 50%, and < 20%, respectively. After 6 months, 5 patients were lost to follow-up, and 30%, 17%, and 16% of patients reported improvement of > 50%, 20% to 50%, and < 20%, respectively. CONCLUSIONS: In this pilot study we observed a reduced need for SCS when lumbosacral epiduroscopic lysis of adhesions was used for patients with FBSS and magnetic resonance imaging proven adhesions. These observations justify the evaluation of both treatment options in a prospective observational trial. PMID- 29345842 TI - Programmed death-ligand 1 is a promising blood marker for predicting tumor progression and prognosis in patients with gastric cancer. AB - Immune checkpoint inhibitor therapy has been clinically introduced for several malignancies, and its effectiveness has been confirmed by clinical trials. In particular, programmed cell death protein 1 (PD-1) and programmed death-ligand 1 (PD-L1) are widely known as important immune checkpoint molecules associated with the mechanisms of immune escape by malignant tumor cells. In addition, liquid biopsy of blood specimens has the clinical benefit of providing a simple, repeatable sampling tool. Non-invasive liquid biopsy has recently been spotlighted as a promising approach to predicting tumor progression and prognosis. This study assessed the clinical significance of PD-L1 mRNA expression in blood specimens obtained from patients with gastric cancer. Peripheral blood specimens were collected before treatment from 124 patients with gastric cancer. The PD-L1 mRNA expression was evaluated by quantitative RT-PCR. Programmed death ligand 1 mRNA expression was significantly higher in patients with advanced gastric cancer than in patients with early gastric cancer (P = .002). Moreover, PD-L1 expression correlated significantly with depth of tumor invasion, distant metastasis, and stage (P = .001, P < .001, and P < .001, respectively). Patients with high PD-L1 expression showed significantly poorer prognosis than those with low PD-L1 expression (P < .0001). Multivariate analysis indicated PD-L1 expression as an independent prognostic factor. Expression of PD-L1 in peripheral blood may offer an immunological predictor of tumor progression and disease outcome in patients with gastric cancer. PMID- 29345844 TI - Assessing hepatitis C spontaneous clearance and understanding associated factors A systematic review and meta-analysis. AB - New advances in the treatment of hepatitis C provide high levels of sustained viral response but their expense limits availability in publicly funded health systems. The aim of this review was to estimate the proportion of patients who will spontaneously clear HCV, to identify factors that are associated with clearance and to support better targeting of directly acting antivirals. We searched Ovid EMBASE, Ovid MEDLINE and PubMed from 1 January 1994 to 30 June 2015 for studies reporting hepatitis C spontaneous clearance and/or demographic, clinical and behavioural factors associated with clearance. We undertook meta analyses to estimate the odds of clearance for each predictor. Forty-three studies met the inclusion criteria, representing 20 110 individuals, and 6 of these studies included sufficient data to estimate spontaneous clearance. The proportion achieving clearance within 3, 6, 12 and 24 months following infection were, respectively, 19.8% (95% CI: 2.6%-47.5%), 27.9% (95% CI: 17.2%-41.8%), 36.1% (95% CI: 23.5%-50.9%) and 37.1% (95% CI: 23.7%-52.8%). Individuals who had not spontaneously cleared by 12 months were unlikely to do so. The likelihood of spontaneous clearance was lower in males and individuals with HIV co-infection, the absence of HBV co-infection, asymptomatic infection, black or nonindigenous race, nongenotype 1 infection, older age and alcohol or drug problems. This study suggests that patients continue to spontaneously clear HCV for at least 12 months following initial infection. However, injecting drug users are comparatively less likely to achieve clearance; thus, they should be considered a priority for early treatment given the continuing risks that these individuals pose for onwards transmission. PMID- 29345845 TI - Atypical familial Mediterranean fever developed in a long-term hemodialysis patient. AB - Familial Mediterranean Fever (FMF) is usually an autosomal recessive autoinflammatory disease characterized by recurrent attacks of fever and serositis. FMF develops before the age of 20 years in 90% of patients. It has intervals of 1 week to several years between attacks, which leads to renal dysfunction-amyloidosis. We report a case of atypical FMF that developed in a long-term hemodialysis patient. A 65-year-old Japanese female undergoing hemodialysis for 32 years was referred to our hospital with a fever of unknown origin (FUO) following cervical laminoplasty. The fever occurred as recurrent attacks accompanied by oligoarthralgia of the left hip and knee. We suspected FMF because of recurrent self-limited febrile attacks, although the patient showed atypical clinical features such as late-onset and highly frequent attacks. After receiving treatment, she achieved a complete response to colchicine. Therefore, a diagnosis of FMF was made based on the Tel-Hashomer criteria, which was confirmed by genetic testing. The case suggests that FMF may be of note in long-term hemodialysis patients developing FUO. PMID- 29345846 TI - Stable and Highly Efficient Electrochemical Production of Formic Acid from Carbon Dioxide Using Diamond Electrodes. AB - High faradaic efficiencies can be achieved in the production of formic acid (HCOOH) by metal electrodes, such as Sn or Pb, in the electrochemical reduction of carbon dioxide (CO2 ). However, the stability and environmental load in using them are problematic. The electrochemical reduction of CO2 to HCOOH was investigated in a flow cell using boron-doped diamond (BDD) electrodes. BDD electrodes have superior electrochemical properties to metal electrodes, and, moreover, are highly durable. The faradaic efficiency for the production of HCOOH was as high as 94.7 %. Furthermore, the selectivity for the production of HCOOH was more than 99 %. The rate of the production was increased to 473 MUmol m-2 s 1 at a current density of 15 mA cm-2 with a faradaic efficiency of 61 %. The faradaic efficiency and the production rate are almost the same as or larger than those achieved using Sn and Pb electrodes. Furthermore, the stability of the BDD electrodes was confirmed by 24 h operation. PMID- 29345847 TI - Characterizing the temporal evolution of the hepatitis C virus epidemic in Pakistan. AB - Pakistan has the second largest number of HCV infections in the world. We assessed past, present and future levels and trends of the HCV epidemic in Pakistan. An age-structured mathematical model was developed and analysed to describe transmission dynamics over 1980-2050. The model was fitted to a nationally representative survey and a comprehensive database of systematically gathered HCV Ab prevalence data. HCV Ab and chronic infection prevalences peaked at 5.3% and 3.9% in 2000 but were projected to decline to 4.3% and 3.2% by 2017, 3.4% and 2.6% by 2030 and 2.6% and 1.9% by 2050, respectively. The number of chronically infected individuals was estimated at 6 663 906 in 2017 and was projected to peak at 6 665 900 in 2018 and decline to 6 372 100 in 2030 and 5 131 500 in 2050. Annual number of new infections peaked at 346 740 in 1992 but was projected to decline to 198 320 in 2017, 151 090 in 2030 and 98 120 in 2050. Incidence rate per 100 000 person-year peaked at 343 in 1988 but was projected to decline to 99 in 2017, 62 in 2030 and 36 in 2050. Prevalence and incidence varied by age, and the majority of new infections occurred in the 20-39 age group. Prevalence and incidence of HCV in Pakistan have been slowly declining for two decades-Pakistan is enduring a large epidemic that will persist for decades if not controlled. Nearly, 10% of global infections are in Pakistan, with about 200 000 additional infections every year. Rapid and mass scale-up of prevention and treatment programmes are critically needed. PMID- 29345848 TI - Economic evaluation of cognitive behavioral therapy and Internet-based guided self-help for binge-eating disorder. AB - OBJECTIVE: To determine the cost-effectiveness of individual face-to-face cognitive behavioral therapy (CBT) compared to therapist guided Internet-based self-help (GSH-I) in overweight or obese adults with binge-eating disorder (BED). METHOD: Analysis was conducted alongside the multicenter randomized controlled INTERBED trial. CBT (n = 76) consisted of up to 20 individual therapy sessions over 4 months. GSH-I (n = 71) consisted of 11 modules combining behavioral interventions, exercises including a self-monitoring food diary, psychoeducation, and 2 face-to-face coaching sessions over 4 months. Assessments at baseline, after 4 months (post-treatment), as well as 6 and 18 months after the end of treatment included health care utilization and sick leave days to calculate direct and indirect costs. Binge-free days (BFD) were calculated as effect measure based on the German version of the Eating Disorder Examination. The incremental cost-effectiveness ratio (ICER) was determined, and net benefit regressions, adjusted for comorbidities and baseline differences, were used to derive cost-effectiveness acceptability curves. RESULTS: After controlling for baseline differences, CBT was associated with non-significantly more costs (+?2,539) and BFDs (+40.1) compared with GSH-I during the 22-month observation period, resulting in an adjusted ICER of ?63 per additional BFD. CBTs probability of being cost-effective increased above 80% only if societal willingness to pay (WTP) was >=?250 per BFD. DISCUSSION: We did not find clear evidence for one of the treatments being more cost-effective. CBT tends to be more effective but also more costly. If the societal WTP for an additional BFD is low, then our results suggest that GSH-I should rather be adopted. PMID- 29345849 TI - Impact of cone beam computed tomography on periapical assessment and treatment planning five to eleven years after surgical endodontic retreatment. AB - AIM: To evaluate how additional information from Cone Beam CT (CBCT) impacts on periapical assessment and treatment planning based on clinical examination and periapical radiographs (PR) in cases followed up five to eleven years after surgical endodontic retreatment (SER). METHODOLOGY: Patients receiving SER during 2004-2010 were reinvited for follow-up examination including clinical examination, PR, and CBCT. In total, 108 patients (119 teeth) were reinvited, 74 patients (83 teeth) accepted to participate. Three observers initially assessed PR according to the four-scaled, increasing disease severity criteria by Rud et al. (International Journal of Oral Surgery, 1, 1972 and 195) and Molven et al. (International Journal of Oral and Maxillofacial Surgery, 16, and 432): 'Radiographic assessment A'. By including clinical information 'Treatment plan A' was made as follows: 1) no treatment, 2) further observation, 3) SER reoperation (SER-R), or 4) extraction. Hereafter, the CBCT volume was assessed and the information incorporated for 'Radiographic assessment B' followed by 'Treatment plan B'. Agreement between radiographic assessments and between treatment plans was recorded and assessed statistically by Stuart-Maxwell test for marginal homogeneity. RESULTS: Nine teeth had been extracted; thus, the final analysis included 74 teeth (66 patients). The radiographic assessment was changed as a result of the CBCT evaluation in 38 cases (51.4%), of which 35 (47.3%) were to a higher Rud & Molven score, P < 0.001. The treatment plan was changed for 18 teeth (24.3%). For 14 teeth (18.9%), the change was from no treatment or further observation to a more invasive treatment plan (SER-R or extraction), P = 0.005. CONCLUSION: The use of CBCT for long-term follow-up after SER led to more cases diagnosed with persisting or recurrent apical periodontitis and hence often to the recommendation of a more invasive treatment modality. PMID- 29345850 TI - Effects of glutaraldehyde-didecyldimethylammonium bromide combined disinfectant on the cell surface of Staphylococcus aureus. AB - AIMS: The effects of a new glutaraldehyde-didecyldimethylammonium bromide combination disinfectant (GD) on the cell surface of Staphylococcus aureus, a representative Gram-positive bacterium, were investigated in this study. METHODS AND RESULTS: Results of bacterial surface structural analysis showed that GD significantly changed the bacterial morphology. The membrane fluidity decreased and outer membrane permeabilization increased after contact with GD. Furthermore, the integrity of the cytoplasmic membrane was destroyed by over 99% after exposure to GD for a short time. Bacterial ATPase activity correlated negatively with the treatment of GD over time, and proteins were degraded. Assays of intracellular component leakage indicated that GD caused the rapid leakage of K+ , Mg2+ , ATP molecules, and proteins into the extracellular environment. CONCLUSIONS: The effects of GD against S. aureus are probably attributable to the removal of the permeability barrier, changes in the S. aureus morphology, changes in the structures and functions of the cell membrane, leakage of intracellular substances and disturbance of the intracellular homeostasis. As a result, this irreversible damage accelerated the death of S. aureus. SIGNIFICANCE AND IMPACT OF THE STUDY: In an earlier study, the bactericidal mechanism of GD against Escherichia coli was investigated. Hence, this study focused on the action of mechanism of GD against S. aureus. It is important to clarify the disinfectant bactericidal mechanisms of GD against bacterium, in general, and this study provides theoretical support to the prevention of bacterial resistance. PMID- 29345851 TI - The immunosuppressive effects of CD4+ CD25+ regulatory T cells on dendritic cells in patients with chronic hepatitis B. AB - The characteristics and functions of CD4+ CD25+ regulatory T cells (Tregs) have been well defined in murine and human systems. However, the interaction or crosstalk between CD4+ CD25+ Tregs and dendritic cells (DCs) remains controversial. In this study, the effects of chronic hepatitis B (CHB) CD4+ CD25+ Tregs on the maturation and function of monocyte-derived DCs were examined. The results showed that CD4+ CD25+ render the DCs inefficient as antigen-presenting cells (APCs) despite prestimulation with CD40 ligand. This effect was marginally reverted by applying neutralizing antibodies (Abs) to IL-10 and TGF-beta. There were an increased IL-10 and TGF-beta secretion and reduced expression of costimulatory molecules in DC. Thus, in addition to a direct suppressor effect on CD4+ T cells, CD4+ CD25+ may modulate the immune response through DCs in CHB patients. PMID- 29345853 TI - Any Associations Between the Timing of the Peak QTc Prolongation, Depth of the Admission T-Wave Inversions, and Extent/Intensity of Myocardial Edema in Patients With Takotsubo Syndrome? PMID- 29345852 TI - Cadmium and cadmium-tolerant soil bacteria in cacao crops from northeastern Colombia. AB - AIMS: This research aims to assess total-cadmium soil content and microbiological aspects to understand the dynamics of culturable cadmium-tolerant bacteria (CdtB) in cacao soils from northeastern Colombia. METHODS AND RESULTS: An integration of inverted dish plating, Cd determination and a microcalorimetry assay (IMC) was carried out. A farm in Boyaca showed the highest level of total soil Cd (3.74 mg kg-1 ) followed by farms in Santander and Arauca (2.76 and 1.16 mg kg-1 , respectively). Coefficient of determination between total soil Cd and CFU of CdtB was high (R2 = 0.83) for the farm in Boyaca. Moreover, a pool of 129 CdtB was isolated, and phylogeny of 21 CdtB was discussed. Among CdtB strains isolated, Enterobacter sp. CdDB41 showed major Cd immobilization capacity (Qmax of 2.21 and 2.32 J at 6 and 24 mg l-1 of CdCl2 ), with an immobilization rate of 0.220 mg kg 1 h-1 . CONCLUSIONS: Among CdtB strains isolated, Enterobacter sp. CdDB41 showed major Cd immobilization capacity (Qmax of 2.21 and 2.32 J at 6 and 24 mg l-1 of CdCl2 ), with an immobilization rate of 0.220 mg kg-1 h-1 . SIGNIFICANCE AND IMPACT OF THE STUDY: Nothing is known about soil CdtB in cacao. Our data showed that CdtB such as Enterobacter sp. has high immobilization capacity. Furthermore, the otavite found in situ might be mineralized due to the bacterial metabolic activity of CdtB. PMID- 29345854 TI - [CH3 NH3 ]4 Ga4 SbS9 S0.28 O0.72 H: A Three-Dimensionally Open-Framework Heterometallic Chalcogenidoantimonate Exhibiting Ni2+ Ion-Exchange Property. AB - An open-framework chalcogenidoantimonate, namely, [CH3 NH3 ]4 Ga4 SbS9 S0.28 O0.72 H (1), has been solvothermally synthesized and structurally characterized. Interestingly, 1 showed Ni2+ ion-exchange properties and wide pH resistance, with a maximum exchange capacity of 76.9 mg g-1 . To the best of our knowledge, this is the first example of amine-directed three-dimensional (3D) heterometallic chalcogenidometalates for highly selective Ni2+ ion capture with a high distribution coefficient (Kd =1.65*105 mL g-1 ). PMID- 29345856 TI - Response to Teng et al. PMID- 29345855 TI - Increased oestradiol in hepatitis E virus-infected pregnant women promotes viral replication. AB - Hepatitis E virus (HEV) infection causes subclinical diseases, leading to high mortality (>25%) in pregnant women. HEV replication is aggressively escalated in pregnant women, especially in the third trimester of pregnancy. Oestrogen plays an important role in pregnancy. However, the pathogenesis of HEV in pregnant women or immunosuppressive pregnant women (such as HIV-infected or organ transplanted pregnant women) remains unclear. We investigated the role of oestradiol in HEV infection in a cell culture system. HEV-infected pregnant women had significantly higher oestradiol levels compared with uninfected individuals. HEV infection was significantly increased in cells treated with analogues of oestradiol, diethylstilbestrol (DES) or 17beta-oestradiol in a dose-dependent way. However, tamoxifen, an antagonist oestrogen, inhibited HEV replication. HEV infection inhibits oestrogen receptor (ER-alpha) expression. Immunofluorescence and co-immunoprecipitation assays indicated that ER-alpha interacted with the helicase of HEV ORF1 indirectly. More importantly, HEV infection was exacerbated in immunosuppressive cells treated with an inhibitor of PI3K-AKT-mTOR signal pathway (LY296004) and supplemented with pregnant women serum with high oestradiol simultaneously. These results strongly suggest that pregnant women with high oestradiol and/or immunosuppression will be vulnerable to HEV infection. PMID- 29345857 TI - News from the European Academy of Andrology (EAA). PMID- 29345858 TI - Cardiopulmonary fitness is strongly associated with body cell mass and fat-free mass: The Study of Health in Pomerania (SHIP). AB - Peak oxygen uptake (VO2peak) is commonly indexed by total body weight (TBW) to determine cardiopulmonary fitness (CPF). This approach may lead to misinterpretation, particularly in obese subjects. We investigated the normalization of VO2peak by different body composition markers. We analyzed combined data of 3848 subjects (1914 women; 49.7%), aged 20-90, from two independent cohorts of the population-based Study of Health in Pomerania (SHIP-2 and SHIP-TREND). VO2peak was assessed by cardiopulmonary exercise testing. Body cell mass (BCM), fat-free mass (FFM), and fat mass (FM) were determined by bioelectrical impedance analysis. The suitability of the different markers as a normalization variable was evaluated by taking into account correlation coefficients (r) and intercept (alpha-coefficient) values from linear regression models. A combination of high r and low alpha values was considered as preferable for normalization purposes. BCM was the best normalization variable for VO2peak (r = .72; P <= .001; alpha-coefficient = 63.3 mL/min; 95% confidence interval [CI]: 3.48-123) followed by FFM (r = .63; P <= .001; alpha-coefficient = 19.6 mL/min; 95% CI: -57.9-97.0). On the other hand, a much weaker correlation and a markedly higher intercept were found for TBW (r = .42; P <= .001; alpha coefficient = 579 mL/min; 95% CI: 483 to 675). Likewise, FM was also identified as a poor normalization variable (r = .10; P <= .001; alpha-coefficient = 2133; 95% CI: 2074-2191). Sex-stratified analyses confirmed the above order for the different normalization variables. Our results suggest that BCM, followed by FFM, might be the most appropriate marker for the normalization of VO2peak when comparing CPF between subjects with different body shape. PMID- 29345859 TI - Development of a risk prediction model for lung cancer: The Japan Public Health Center-based Prospective Study. AB - Although the impact of tobacco consumption on the occurrence of lung cancer is well-established, risk estimation could be improved by risk prediction models that consider various smoking habits, such as quantity, duration, and time since quitting. We constructed a risk prediction model using a population of 59 161 individuals from the Japan Public Health Center (JPHC) Study Cohort II. A parametric survival model was used to assess the impact of age, gender, and smoking-related factors (cumulative smoking intensity measured in pack-years, age at initiation, and time since cessation). Ten-year cumulative probability of lung cancer occurrence estimates were calculated with consideration of the competing risk of death from other causes. Finally, the model was externally validated using 47 501 individuals from JPHC Study Cohort I. A total of 1210 cases of lung cancer occurred during 986 408 person-years of follow-up. We found a dose dependent effect of tobacco consumption with hazard ratios for current smokers ranging from 3.78 (2.00-7.16) for cumulative consumption <=15 pack-years to 15.80 (9.67-25.79) for >75 pack-years. Risk decreased with time since cessation. Ten year cumulative probability of lung cancer occurrence estimates ranged from 0.04% to 11.14% in men and 0.07% to 6.55% in women. The model showed good predictive performance regarding discrimination (cross-validated c-index = 0.793) and calibration (cross-validated chi2 = 6.60; P-value = .58). The model still showed good discrimination in the external validation population (c-index = 0.772). In conclusion, we developed a prediction model to estimate the probability of developing lung cancer based on age, gender, and tobacco consumption. This model appears useful in encouraging high-risk individuals to quit smoking and undergo increased surveillance. PMID- 29345860 TI - Reply to 'Mucosal ischemia and bowel gangrene can have different treatment options in sigmoid volvulus'. PMID- 29345862 TI - Thirty Great Years. PMID- 29345861 TI - Ruthenium-Catalyzed Aerobic Oxidation of Amines. AB - Amine oxidation is one of the fundamental reactions in organic synthesis as it leads to a variety of value-added products such as oximes, nitriles, imines, and amides among many others. These products comprise the key N-containing building blocks in the modern chemical industry, and such transformations, when achieved in the presence of molecular oxygen without using stoichiometric oxidants, are much preferred as they circumvent the production of unwanted wastes. In parallel, the versatility of ruthenium catalysts in various oxidative transformations is well-documented. Herein, this review focuses on aerobic oxidation of amines specifically by using ruthenium catalysts and highlights the major achievements in this direction and challenges that still need to be addressed. PMID- 29345863 TI - All Good Things.... PMID- 29345864 TI - Naltrexone and Disulfiram Treatment Response in Veterans With Alcohol Dependence and Co-Occurring Problem-Gambling Features. AB - BACKGROUND: Disordered gambling behavior frequently co-occurs with alcohol dependence and other psychiatric conditions. Using data from a previously published trial, we conducted secondary analyses to examine the influence of problem-gambling features on treatment outcome for alcohol dependence or co occurring psychopathology assessed via DSM-IV criteria. METHODS: Two hundred fifty-four patients with alcohol dependence and co-occurring psychiatric disorders were treated for 12 weeks in an outpatient medication study conducted at 3 Veterans Administration outpatient clinics from October 1998 to March 2002. Randomization included assignment to 1 of 4 groups: (1) naltrexone alone, (2) placebo alone, (3) (open-label) disulfiram and (blinded) naltrexone, or (4) (open label) disulfiram and (blinded) placebo. One hundred seventy-four participants were evaluated for the diagnostic inclusionary criteria for pathological gambling using the Massachusetts Gambling Screen. Primary outcome and secondary outcome measures assessed alcohol use and psychiatric domains. RESULTS: Forty-five of 174 participants (25.9%) exhibited problem-gambling features (acknowledged 1 or more inclusionary criteria for pathological gambling). A gambling-group-by-disulfiram interaction was observed for abstinence, with problem-gambling features not associated with beneficial response to disulfiram (z = 6.58, P = .01). Participants with problem-gambling features reported significantly less improvement over time in general psychiatric functioning (z = 2.62, P = .01), specifically within somatization (z = 3.77, P < .01), phobic anxiety (z = 3.24, P < .01), interpersonal sensitivity (z = 2.61, P = .01), paranoid ideation (z = 2.32, P = .02), and anxiety (z = 2.10, P = .04) domains. CONCLUSIONS: The association between problem-gambling features and poorer outcomes in alcohol and multiple nonsubstance psychiatric domains suggests the need for improved screening for gambling problems in dually diagnosed populations and for the development of empirically validated treatments for individuals with these disorders. PMID- 29345865 TI - The Few Who Served Deserved to Be Cared For. PMID- 29345866 TI - Cognitive Impairment in Patients With Depression: Awareness, Assessment, and Management. AB - Cognitive impairment is a common, often persistent, symptom of major depressive disorder (MDD) that is disproportionately represented in patients who have not returned to full psychosocial functioning. The ultimate goal of treatment in depression is full functional recovery, and assessing patients for cognitive impairment and selecting treatments that address cognitive dysfunction should lead to improved functional outcomes. Unfortunately, many clinicians use screening and assessment tools that are not suited for measuring cognitive impairment in patients with depression. The new THINC-it assessment tool is the first instrument that provides objective and subjective data on dysfunction in all the cognitive domains commonly affected by depression. In regard to treatment, several pharmacologic and nonpharmacologic interventions have been investigated as treatments for cognitive dysfunction in individuals with MDD. However very few studies of treatments for cognitive function in patients with MDD have been adequate, in terms of sample size and study methods, to guide clinical practice. The best evidence supports the moderate efficacy of some antidepressants, cognitive-behavioral therapy, and exercise. . PMID- 29345867 TI - Findings of Interest. PMID- 29345868 TI - The Gap Between the Randomized Controlled Trial-Based Evidence and Real-World Practice in Switching Strategies of Major Depressive Disorder. PMID- 29345869 TI - Drs Bschor and Baethge Reply. PMID- 29345870 TI - Antidepressant Response and Dissociative Effects After Ketamine Treatment: Two Sides of the Same Coin? PMID- 29345871 TI - Dr Andrade Replies. PMID- 29345872 TI - Cognitive Planning Neural Correlates in a Pediatric Monozygotic Twin Pair Discordant for Obsessive-Compulsive Disorder: Exploring Potential Application in Precision Medicine. PMID- 29345874 TI - Epidemiology and Prevention of Tardive Dyskinesia. AB - What risk factors suggest that patients are more likely to develop tardive dyskinesia (TD)? Can TD symptoms be prevented? Read this CME activity to learn about the prevalence, epidemiology, and prevention of these abnormal movements from an expert. PMID- 29345873 TI - Patient Education in Psychopharmacology and the Risk of Nocebo-Related Treatment Inefficacy and Harm. AB - Many studies have shown that educating patients about the potential adverse effects of a drug can increase the chances that those adverse effects will be experienced. Studies have further shown that how such information is communicated can also impact this nocebo risk. Additionally, information provided through patient education can influence treatment efficacy, perhaps by moderating the placebo response. There is therefore a need to optimize the manner in which patients are educated about their medications so that placebo-related benefits are enhanced and nocebo-related harm is minimized. This article provides suggestions on the subject for clinical practice as well as research. Nonspecific factors in psychopharmacology are important and should not be neglected. PMID- 29345875 TI - Available Tools for Assessing Cognitive Impairment in Major Depressive Disorder. AB - You know that measuring cognition in your patients with depression is important. But cognitive assessment instruments can be difficult to access, expensive, time consuming, and not available in an electronic format. Read this CME activity to learn about a new free tool. PMID- 29345876 TI - Assessing Patients for Tardive Dyskinesia. AB - Do you regularly screen for tardive dyskinesia in at-risk patients? Explore this CME activity by a well-known expert for information on rating scales for screening, available diagnostic criteria, assessment tips, and monitoring recommendations. PMID- 29345877 TI - Comparing Treatments for Tardive Dyskinesia. AB - Many treatment interventions for tardive dyskinesia have been studied, but some have better evidence than others. Read this CME activity to get an expert's perspectives on the evidence for older and newer treatments so that you can minimize abnormal movements in your patients. PMID- 29345878 TI - Impact of Cognitive Impairment on Functioning in Patients With Depression. AB - Reassessing a patient's diagnosis if he or she does not respond adequately to initial antidepressant pharmacotherapy is imperative. In this CME activity, evaluate the case of Melissa, a 32-year-old architect with a potential case of treatment-resistant depression, and decide on appropriate treatment strategies. PMID- 29345879 TI - Improving Long-Term Outcomes in Patients With Schizophrenia: What Is the Evidence for Long-Acting Injectable Antipsychotics? AB - Do you consider long-acting injectable (LAI) antipsychotics when selecting among treatments for schizophrenia? Take part in this CME activity to review the evidence for LAIs vs oral medications and to learn which patients may benefit most from this treatment option. Plus, discover the pharmacokinetic properties of LAIs and barriers to their use. PMID- 29345880 TI - Strategies for Managing Patients With Depression Who Are Experiencing Cognitive Impairment. AB - Pronounced deficits in executive function are found in up to one-third of patients with MDD, and this impairment can keep patients from achieving full functional recovery. In this CME activity, review the evidence regarding the effectiveness of available interventions to improve cognitive dysfunction in patients with MDD. PMID- 29345881 TI - Noninferiority Trials. PMID- 29345882 TI - Improvement of Antitumor Efficacy by Combination of Thermosensitive Liposome with High-Intensity Focused Ultrasound. AB - High intensity focused ultrasound (HIFU), allowing for precise heating of the deep and local area, is emerging as the source of mild hyperthermia for delivery of doxorubicin (DOX) using thermosensitive liposomes (TSLs). Conventionally, HIFU has been used for intravascular drug release at tumor tissue by inducing mild hyperthermia immediately upon systemic administration of DOX-TSLs. This immediate heating approach (IHA), however, limits the deep penetration of DOX for high anticancer efficacy. In an attempt to maximize the accumulation of DOX at tumor, the delayed heating approach (DHA) has been explored. In this approach, DOX-TSLs were intravenously administered into the tumor-bearing mice after pre-treatment of tumor tissue with HIFU to increase vascular permeability. We developed the fatty acid-cojugated elastinlike polypeptide bearing TSL (FTSL). The DOX-loaded FTSLs had a hydrodynamic size of 142 nm. In vivo biodistribution study demonstrated that DOX-FTSLs were selectively accumulated at tumor tissue with the maximum amount of DOX at 6 h post-injection. Thereafter, the tumor tissue was heated to 42 degrees C to induce rapid release of DOX from FTSLs. The results have demonstrated that, compared to IHA, DHA significantly enhances the antitumor efficacy of DOX-FTSLs because of their effective penetration to tumor tissue via the enhanced permeation retention effect, followed by rapid release of DOX. PMID- 29345883 TI - Crisis in the Sustainability of the U.S. Blood System. PMID- 29345884 TI - Crisis in the Sustainability of the U.S. Blood System. PMID- 29345885 TI - Superparamagnetic Iron Oxide Nanorod Carriers for Paclitaxel Delivery in the Treatment and Imaging of Colon Cancer in Mice. AB - A multifunctional magnetic drug delivery system was developed and explored as an efficient and less invasive technique to improve colon cancer diagnosis and therapy in mice. In this system, superparamagnetic iron oxide nanorod cores enhanced passive targeting by bandaging a magnet adjacent to the tumor site, whereas pluronic F127 shell acted as the carrier for paclitaxel. The pluronic conjugated superparamagnetic iron oxide cores were prepared using the hydrothermal method. It was found that the initial pluronic concentration exerted a significant effect on the distribution of the diameters and lengths of the nanorods. Despite the variation in pluronic concentrations and dimensions of iron oxide products, all the samples exhibited negligible coercivity and remanence, confirming their superparamagnetic characteristics. The pluronic F127 superparamagnetic iron oxide nanocarriers were then prepared by encapsulation of nanorods into pluronic micelles and assessed for paclitaxel loading. Results showed that paclitaxel was incorporated into the core of the micelles through hydrophobic interactions, and that elevating both paclitaxel concentration and temperature increased the loading efficiency. The therapeutic effect of paclitaxel-loaded nanocarriers was then tested in in vitro and in vivo colon cancer models. Compared to docetaxel, the paclitaxel-loaded magnetic nanocarriers significantly suppressed tumor growth and improved survival time of xenograft mice. The accumulated magnetic nanocarriers inside the tumor also served as a contrast agent and enhanced magnetic resonance imaging localization and visualization of the small tumor. PMID- 29345886 TI - Curcumin-Zein Nanospheres Improve Liver Targeting and Antifibrotic Activity of Curcumin in Carbon Tetrachloride-Induced Mice Liver Fibrosis. AB - Liver fibrosis is a major health problem that has no satisfactory medication. Curcumin, (CUR) although known for its antifibrotic activity, has limited medicinal use owing to its poor oral pharmacokinetic properties and targeting efficiency. The current study aimed at exploring the ability of zein (ZN) nanospheres to improve the liver targeting and antifibrotic activity of CUR in a mouse model of carbon tetrachloride (CCl4)-induced liver fibrosis. Four different formulae of ZN-loaded CUR were prepared and examined in terms of particle size, zeta potential, encapsulation efficiency, and in vitro permeation. The formula containing a CUR to ZN ratio of 1:3 showed optimum nanosphere properties and was subjected to further investigations. Under a scanning electron microscope, the selected formula showed spherical particles with uniform size distribution. In normal mice, the selected formula exhibited improved bioavailability and liver targeting efficiency compared to raw CUR. The nanosphere preparation also offered significant protection against CCl4-induced liver function deterioration, histopathological changes, and oxidative stress in mice. Compared to raw CUR, CUR ZN was significantly more effective in attenuating the rise in hepatic gene expression of collagen-1, tissue inhibitor of metalloproteinase-2, and transforming growth factor beta, as well as the downregulation of matrix metalloproteinase-2 expression. Masson's trichrome staining confirmed the higher antifibrotic activity of the nanospheres that ameliorated the rise in hepatic hydroxyproline content and collagen-1-immunopositive areas in mice liver sections. In conclusion, CUR-ZN nanospheres demonstrated improved liver targeting efficiency and antifibrotic activity in comparison to raw CUR in CCl4-induced liver fibrosis in mice. PMID- 29345887 TI - Nanotheranostic Based Iron Oxide (Fe3O4) Saturated Lactoferrin Nanocapsules for Colonic Adenocarcinoma. AB - Efficient early detection of cancer and its simultaneous therapy can improve the survival of cancer patients significantly. Recently there is great interest for the development of nanotheranostic systems with multimodal live real-time imaging ability. Novel multimodal multifunctional iron oxide (Fe3O4) saturated lactoferrin (FebLf) nanocapsules/nanocarriers (FebLf NCs) nanoformulation was fabricated. Anti-cancer nanotheranostic ability in human xenograft colonic adenocarcinoma model was conducted in vivo by employing near infrared flouroscence (NIRF) real time live mice imaging technology. FebLf NCs showed spherical morphology with 50 to 80 nm size with super paramagnetic property and exhibited profound in vivo anti-tumour efficacy, leading to regression of the xenograft colonic tumour growth over a 90 day trial period. NIRF real time imaging revealed selective localisation patterns of the FebLf NCs at the tumour site causing tumour growth inhibition. In turn, ex vivo NIRF imaging of mice organs showed enhanced tumoural uptake and biodistribution at the vital organs including spleen, intestine, kidney, and intestine. Low-density lipoprotein receptors (LDLRs), ferroportin, ferritin receptor based in vivo internalisation mechanisms and iron metabolism regulation were observed. Histopathological analysis revealed obsolute non-toxic nature of FebLf NCs in mice tissues. These observations summate biocompatible, multimodal anticancer activity of novel FebLf NCs for real time cancer therapeutic imaging leading to targeted colonic adenocarcinoma therapy. PMID- 29345888 TI - Nanoparticles with Optimal Ratiometric Co-Delivery of Docetaxel with Gambogic Acid for Treatment of Multidrug-Resistant Breast Cancer. AB - It has been reported that gambogic acid (GA), the main active component of gamboge, could directly inhibit and reduce the expression level of P-gp by promoting protein degradation through post-translational proteasome pathway. In this study, the optimal molar ratio of GA/docetaxel (DTX) that could recover the sensitivity of MCF-7/ADR cells to DTX was firstly investigated. Then GA and DTX were loaded simultaneously in PLGA nanoparticles in terms of the optimal ratio. In vitro cell apoptosis and western-blot assays showed that co-delivery of anticancer drugs resulted in enhanced cell apoptosis through the downregulation of the expression level of P-gp. Interestingly, in vivo pharmacokinetic study demonstrated that GA and DTX are released synchronously in blood from the NPs. Finally, the most effective tumor growth inhibition in the MCF-7/ADR human breast tumor xenograft was observed in the co-delivery nanoparticle formulation group in comparison with saline control, free DTX solution and free DTX/GA solution. Taken together, our study demonstrated that DTX/GA PLGA NPs based combination therapy holds significant potential towards the treatment of multidrug-resistant breast cancer. PMID- 29345889 TI - Modulation of MicroRNAs 34a and 21 Affects Viability, Senescence, and Invasion in Glioblastoma Multiforme. AB - Glioblastoma multiforme (GBM) is an aggressive and invasive brain tumor. Current interventional strategies have been minimally successful. Three key characteristics of GBMs are (1) enhanced resistance to apoptosis, (2) increased proliferation rate, and (3) increased invasion potential, making them difficult to treat. MicroRNAs (miRs) have demonstrated beneficial therapeutic intervention; particularly miRs 34a and 21, which have been implicated in regulation of apoptosis, senescence, and invasion of GBM tumor cells. MiR21 is anti-apoptotic and pro-proliferative, whereas miR34a is proapoptotic and an anti-invasive regulator in tumor cells. Our study investigates the effects of modulating both miR34a and miR21, in addition to comparing the two individual treatments. Using targeted cationic liposomes that bind to the epidermal growth factor receptor (EGFR), we delivered miR34a and/or anti-sense oligonucleotide to miR21 (ASO21) to GBM tumor cell lines, U87MG and A172, in vitro. Our data demonstrate that co delivery of miR34a and ASO21 results in enhanced reduction in viability and invasion, while increasing senescence in vitro. Additionally, there were significant decreases in pro-invasion and -proliferation gene markers, as well as an increase in pro-apoptotic markers. In vivo results demonstrate that the combination of miR34a and ASO21 reduced tumor volume and proliferation of the A172 tumor cells. Accumulation of rhodamine encapsulated EGFR-targeted cationic liposomes was observed throughout the primary tumor bed after systemic injection. To our knowledge, we are the first to modulate multiple miRs, while using a targeted cationic liposomal delivery for miR-based therapy. These results demonstrate a potential clinically relevant, miR therapeutic strategy for GBM. PMID- 29345890 TI - How Medicare Could Provide Dental, Vision, and Hearing Care for Beneficiaries. AB - Issue: The Medicare program specifically excludes coverage of dental, vision, and hearing services. As a result, many beneficiaries do not receive necessary care. Those that do are subject to high out-of-pocket costs. Goal: Examine gaps in access to dental, vision, and hearing services for Medicare beneficiaries and design a voluntary dental, vision, and hearing benefit plan with cost estimates. Methods: Uses the Medicare Current Beneficiary Survey, Cost and Use File, 2012, with population and costs projected to 2016 values. Findings and Conclusions: Among Medicare beneficiaries, 75 percent of people who needed a hearing aid did not have one; 70 percent of people who had trouble eating because of their teeth did not go to the dentist in the past year; and 43 percent of people who had trouble seeing did not have an eye exam in the past year. Lack of access was particularly acute for poor beneficiaries. Because few people have supplemental insurance covering these additional services, among people who received care, three-fourths of their costs of dental and hearing services and 60 percent of their costs of vision services were paid out of pocket. We propose a basic benefit package for dental, vision, and hearing services offered as a premium financed voluntary insurance option under Medicare. Assuming the benefit package could be offered for $25 per month, we estimate the total coverage costs would be $1.924 billion per year, paid for by premiums. Subsidies to reach low-income beneficiaries would follow the same design as the Part D subsidy. PMID- 29345891 TI - Rapid and Sensitive Fusion Gene Detection in Prostate Cancer Urinary Specimens by Label-Free Surface-enhanced Raman Scattering. AB - Recurrent chromosomal rearrangements such as fusion genes are associated with cancer initiation and progression. Prostate cancer (PCa) is a leading cause of cancer-related deaths in men and the TMPRSS2-ERG gene fusion is a recurrent biomarker in about 50% of all prostate cancers. However, current screening tools for TMPRSS2-ERG are generally confined to research settings and hence, the development of a rapid, sensitive and accurate assay for TMPRSS2-ERG detection may aid in clinical PCa diagnosis and treatment. Herein, we described a new strategy for non-invasive TMPRSS2-ERG detection in patient urinary samples by coupling of isothermal reverse transcription-recombinase polymerization amplification (RT-RPA) to amplify TMPRSS2-ERG transcripts and surface-enhanced Raman scattering (SERS) to directly detect the amplicons. This novel coupling of both techniques allows rapid and quantitative TMPRSS2-ERG detection. Our assay can specifically detect as low as 103 copies input of TMPRSS2-ERG transcripts and was successfully applied to clinical PCa urinary samples. Hence, we believe our assay is a potential clinical screening tool for TMPRSS2-ERG in PCa and may have broad applications in detecting other gene fusion transcripts in other diseases. PMID- 29345892 TI - Colistin-Functionalized Nanoparticles for the Rapid Capture of Acinetobacter baumannii. AB - Gold nanoparticles (AuNPs) were functionalized for rapid binding of Acinetobacter baumannii (A. baumannii), a Gram-negative bacterium. AuNPs were functionalized with colistin (Col), a polycationic antibiotic, using a two-step self-assembly process, in which heterobifunctional polyethylene glycol (PEG) was used as a linker. Colistin was successfully conjugated to the AuNPs (Col-PEG-AuNP), as validated by dynamic light scattering (DLS) and proton nuclear magnetic resonance (H1 NMR). High angle annular dark field scanning transmission electron microscopy (HAADF-STEM) images, acquired simultaneously with X-ray energy dispersive spectroscopy (EDS) data, confirmed binding of Col-PEG-AuNPs to the cell envelope of A. baumannii. Results generated from a binding assay indicated that Col-PEG AuNP complexation with A. baumannii occurred rapidly and reached half-maximum saturation in approximately 7 minutes, on average, for all A. baumannii strains evaluated. Quantitative measurement of the kinetics of Col-PEG-AuNP binding to A. baumannii is essential to inform the design of colistin-functionalized magnetic nanoparticles for magnetic separation of nanoparticle-bound A. baumannii. PMID- 29345893 TI - Fullerene C60 Derivatives Attenuated Microglia-Mediated Prion Peptide Neurotoxicity. AB - Prion disorders are progressive neurodegenerative diseases characterized by extensive neuronal loss, which is linked to the extracellular accumulation of the scrapie isoform (PrPSC) of the normal cellular prion protein (PrPC). As microglial activation is a central event in pathogenesis of prion disease, the strategies that reduce microglial activation may have therapeutic benefits. In this study, the neuroprotective effects of hydroxylated C60(C60-OH) and amino modified-C60(C60-NH2) were evaluated by using PrP(106-126)-stimulated BV-2 cells as a model of activated microglia. Herein, we showed that microglial activation in response to PrP(106-126) was effectively attenuated by pretreatment with C60 OH as compared with C60-NH2. C60-OH significantly inhibited the excessive production of inflammatory mediators, such as prostaglandin E2 (PGE2), nitric oxide (NO), tumor necrosis factors (TNF)-alpha, interleukin (IL)-1beta, and IL-6, and blocked the expression of cyclooxygenase-2 (COX-2) and inducible nitric-oxide synthase (iNOS) in PrP(106-126)-stimulated BV-2 cells. C60-OH exerted anti inflammatory potential by up-regulating the expression of antioxidant enzymes via activation of nuclear factor erythroid 2-related factor 2 (Nrf2). The inhibitory effect of C60-OH against PrP(106-126)-induced inflammatory response was abolished by siRNA of Nrf2. In addition, conditioned culture media taken from PrP(106-126) stimulated microglia cause apoptotic neuronal cell death, which was suppressed by pretreatment with C60-OH. Take together, these results suggest that C60-OH protects neuronal cells against PrP(106-126)-mediated neurotoxicity through activation of Nrf2 pathway, and provides evidence that fullerene derivatives may have therapeutic potential in prion diseases. PMID- 29345894 TI - High-Bandwidth White-Light System Combining a Micro-LED with Perovskite Quantum Dots for Visible Light Communication. AB - This work proposes a high-bandwidth white-light system consisting of a blue gallium nitride (GaN) micro-LED (MULED) exciting yellow-emitting CsPbBr1.8I1.2 perovskite quantum dots (YQDs) for high-speed real-time visible light communication (VLC). The packaged 80 MUm * 80 MUm blue-emitting MULED has a modulation bandwidth of ~160 MHz and a peak emission wavelength of ~445 nm. The achievable bandwidth of the white-light system is up to 85 MHz in the absence of filters and equalization technology. Meanwhile, the bandwidth of the YQDs as a color converter is as high as 73 MHz with the blue GaN MULED as the pump source. A maximum data rate of 300 Mbps can be achieved by taking advantage of the high bandwidth of the white-light system using the non-return-to-zero on-off keying (NRZ-OOK) modulation scheme. The resultant bit-error rate is 2.0 * 10-3, well beneath the forward error correction criterion of 3.8 * 10-3 required for error free data transmission. In addition, the YQDs which we proposed as a color converter possess high stability for VLC. After half a year, the achievable bandwidths of the white-light system and the YQDs are still up to 83 and 70 MHz, respectively. This study provides the direction of developing high-bandwidth white-light system for both high-efficiency solid-state lighting and high-speed VLC. PMID- 29345895 TI - Selective Discrimination of Key Enzymes of Pathogenic and Nonpathogenic Bacteria on Autonomously Reporting Shape-Encoded Hydrogel Patterns. AB - This work reports on a new approach to rapidly and selectively detect and discriminate enzymes of pathogenic from those of nonpathogenic bacteria using a patterned autonomously reporting hydrogel on a transparent support, in which the selectivity has been encoded by the pattern shape to enable facile detection by a color change at one single wavelength. In particular, enzyme-responsive chitosan hydrogel layers that report the presence of the enzymes beta-glucuronidase (beta Gus) and beta-galactosidase (beta-Gal), produced by the nonvirulent Escherichia coli K12 and the food-borne biosafety level 3 pathogen enterohemorrhagic E. coli, respectively, via the blue color of an indigo dye were patterned by two complementary strategies. The comparison of the functionalization of patterned chitosan patches on a solid support with two chromogenic substrates on one hand and the area-selective conjugation of the substrates on the other hand showed that the two characteristic enzymes could indeed be rapidly and selectively discriminated. The limits of detection of the highly stable sensing layers for an observation time of 60 min using a spectrophotometer correspond to enzyme concentrations of beta-Gus and beta-Gal of <=5 and <=3 nM, respectively, and to <=62 and <=33 nM for bare eye detection in nonoptimized sensor patches. These results confirm the applicability of this approach, which is compatible with the simple measurement of optical density at one single wavelength only as well as with parallel, multiplexed detection, to differentiate the enzymes secreted by a highly pathogenic E. coli from a nonpathogenic E. coli on the basis of specifically secreted enzymes. Hence, a general approach for the rapid and selective detection of enzymes of different bacterial species for potential applications in food safety as well as point-of-care microbiological diagnostics is described. PMID- 29345896 TI - Correction to Fingerprint Analysis: Moving Toward Multiattribute Determination via Individual Markers. PMID- 29345897 TI - Design, Synthesis, and Biological Evaluation of 1-Benzylamino-2-hydroxyalkyl Derivatives as New Potential Disease-Modifying Multifunctional Anti-Alzheimer's Agents. AB - The multitarget approach is a promising paradigm in drug discovery, potentially leading to new treatment options for complex disorders, such as Alzheimer's disease. Herein, we present the discovery of a unique series of 1-benzylamino-2 hydroxyalkyl derivatives combining inhibitory activity against butyrylcholinesterase, beta-secretase, beta-amyloid, and tau protein aggregation, all related to mechanisms which underpin Alzheimer's disease. Notably, diphenylpropylamine derivative 10 showed balanced activity against both disease modifying targets, inhibition of beta-secretase (IC50 hBACE-1 = 41.60 MUM), inhibition of amyloid beta aggregation (IC50 Abeta = 3.09 MUM), inhibition of tau aggregation (55% at 10 MUM); as well as against symptomatic targets, butyrylcholinesterase inhibition (IC50 hBuChE = 7.22 MUM). It might represent an encouraging starting point for development of multifunctional disease-modifying anti-Alzheimer's agents. PMID- 29345898 TI - Engineered Phage Matrix Stiffness-Modulating Osteogenic Differentiation. AB - Herein, we demonstrate an engineered phage mediated matrix for osteogenic differentiation with controlled stiffness by cross-linking the engineered phage displaying Arg-Gly-Asp (RGD) and His-Pro-Gln (HPQ) with various concentrations of streptavidin or polymer, poly(diallyldimethylammonium)chloride (PDDA). Osteogenic gene expressions showed that they were specifically increased when MC3T3 cells were cultured on the stiffer phage matrix than the softer one. Our phage matrixes can be easily functionalized using chemical/genetic engineering and used as a stem cell tissue matrix stiffness platform for modulating differential cell expansion and differentiation. PMID- 29345899 TI - Three-Dimensional Graphene Foam-Polymer Composite with Superior Deicing Efficiency and Strength. AB - The adhesion of ice severely compromises the aerodynamic performance of aircrafts operating under critically low-temperature conditions to their surfaces. In this study, highly thermally and electrically conductive graphene foam (GrF) polymer composite is fabricated. GrF-polydimethylsiloxane (PDMS) deicing composite exhibits superior deicing efficiency of 477% and electrical conductivities of 500 S m-1 with only 0.1 vol % graphene foam addition as compared to other nanocarbon based deicing systems. The three-dimensional interconnected architecture of GrF allows the effective deicing of surfaces by employing low power densities (0.2 W cm-2). Electrothermal stability of the GrF-PDMS composite was proven after enduring 100 cycles of the dc loading-unloading current. Moreover, multifunctional GrF-PDMS deicing composite provides simultaneous mechanical reinforcement by the effective transfer and absorption of loads resulting in a 23% and 18% increase in elastic modulus and tensile strength, respectively, as compared to pure PDMS. The enhanced efficiency of the GrF-PDMS deicing composite is a novel alternative to current high-power consumption deicing systems. PMID- 29345900 TI - High-Performance Ga2O3 Anode for Lithium-Ion Batteries. AB - There is a great deal of interest in developing battery systems that can exhibit self-healing behavior, thus enhancing cyclability and stability. Given that gallium (Ga) is a metal that melts near room temperature, we wanted to test if it could be employed as a self-healing anode material for lithium-ion batteries (LIBs). However, Ga nanoparticles (NPs), when directly applied, tended to aggregate upon charge/discharge cycling. To address this issue, we employed carbon-coated Ga2O3 NPs as an alternative. By controlling the pH of the precursor solution, highly dispersed and ultrafine Ga2O3 NPs, embedded in carbon shells, could be synthesized through a hydrothermal carbonization method. The particle size of the Ga2O3 NPs was 2.6 nm, with an extremely narrow size distribution, as determined by high-resolution transmission electron microscopy and Brunauer Emmett-Teller measurements. A lithium-ion battery anode based on this material exhibited stable charging and discharging, with a capacity of 721 mAh/g after 200 cycles. The high cyclability is due to not only the protective effects of the carbon shell but also the formation of Ga0 during the lithiation process, as indicated by operando X-ray absorption near-edge spectroscopy. PMID- 29345902 TI - Flexible Amoxicillin-Grafted Bacterial Cellulose Sponges for Wound Dressing: In Vitro and in Vivo Evaluation. AB - In this study, we report the design and fabrication of a novel biocompatible sponge with excellent antibacterial property, making it a promising material for wound dressings. The sponge is formed by grafting amoxicillin onto regenerated bacterial cellulose (RBC). It was observed that the grafted RBC could enhance the antibacterial activity against fungus, Gram-negative, and Gram-positive bacteria. The morphology of strains treated with the grafted RBC and fluorescent stain results further demonstrated the antibacterial ability of the fabricated sponge. Moreover, a cytocompatibility test evaluated in vitro and in vivo illustrates the nontoxicity of the prepared sponge. More importantly, the wound infection model reveals that this sponge can accelerate the wound healing in vivo. This work indicates the novel sponge has the huge potential in wound dressing application for clinical use. PMID- 29345903 TI - Light-Emitting Diodes Based on Colloidal Silicon Quantum Dots with Octyl and Phenylpropyl Ligands. AB - Colloidal silicon quantum dots (Si QDs) hold ever-growing promise for the development of novel optoelectronic devices such as light-emitting diodes (LEDs). Although it has been proposed that ligands at the surface of colloidal Si QDs may significantly impact the performance of LEDs based on colloidal Si QDs, little systematic work has been carried out to compare the performance of LEDs that are fabricated using colloidal Si QDs with different ligands. Here, colloidal Si QDs with rather short octyl ligands (Octyl-Si QDs) and phenylpropyl ligands (PhPr-Si QDs) are employed for the fabrication of LEDs. It is found that the optical power density of PhPr-Si QD LEDs is larger than that of Octyl-Si QD LEDs. This is due to the fact that the surface of PhPr-Si QDs is more oxidized and less defective than that of Octyl-Si QDs. Moreover, the benzene rings of phenylpropyl ligands significantly enhance the electron transport of QD LEDs. It is interesting that the external quantum efficiency (EQE) of PhPr-Si QD LEDs is lower than that of Octyl-Si QD LEDs because the benzene rings of phenylpropyl ligands suppress the hole transport of QD LEDs. The unbalance between the electron and hole injection in PhPr-Si QD LEDs is more serious than that in Octyl-Si QD LEDs. The currently obtained highest optical power density of ~0.64 mW/cm2 from PhPr-Si QD LEDs and highest EQE of ~6.2% from Octyl-Si QD LEDs should encourage efforts to further advance the development of high-performance optoelectronic devices based on colloidal Si QDs. PMID- 29345904 TI - Enzyme-Initiated Quinone-Chitosan Conjugation Chemistry: Toward A General in Situ Strategy for High-Throughput Photoelectrochemical Enzymatic Bioanalysis. AB - Herein we report a general and novel strategy for high-throughput photoelectrochemical (PEC) enzymatic bioanalysis on the basis of enzyme-initiated quinone-chitosan conjugation chemistry (QCCC). Specifically, the strategy was illustrated by using a model quinones-generating oxidase of tyrosinase (Tyr) to catalytically produce 1,2-bezoquinone or its derivative, which can easily and selectively be conjugated onto the surface of the chitosan deposited PbS/NiO/FTO photocathode via the QCCC. Upon illumination, the covalently attached quinones could act as electron acceptors of PbS quantum dots (QDs), improving the photocurrent generation and thus allowing the elegant probing of Tyr activity. Enzyme cascades, such as alkaline phosphatase (ALP)/Tyr and beta-galactosidase (Gal)/Tyr, were further introduced into the system for the successful probing of the corresponding targets. This work features not only the first use of QCCC in PEC bioanalysis but also the separation of enzymatic reaction from the photoelectrode as well as the direct signal recording in a split-type protocol, which enables quite convenient and high-throughput detection as compared to previous formats. More importantly, by using numerous other oxidoreductases that involve quinones as reactants/products, this protocol could serve as a common basis for the development of a new class of QCCC-based PEC enzymatic bioanalysis and further extended for general enzyme-labeled PEC bioanalysis of versatile targets. PMID- 29345905 TI - Chelate-Assisted Ring-Closing Metathesis: A Strategy for Accelerating Macrocyclization at Ambient Temperatures. AB - Ring-closing metathesis (RCM) offers versatile catalytic routes to macrocycles, with applications ranging from perfumery to production of antiviral drugs. Unwanted oligomerization, however, is a long-standing challenge. Oligomers can be converted into the cyclic targets by catalysts that are sufficiently reactive to promote backbiting (e.g., Ru complexes of N-heterocyclic carbenes; NHCs), but catalyst decomposition limits yields and selectivity. Incorporation of a hemilabile o-dianiline (ODA) chelate into new catalysts of the form RuCl2(NHC)(ODA)(=CHPh) accelerates macrocyclization, particularly for dienes bearing polar sites capable of H-bonding: it may also inhibit catalyst decomposition during metathesis. Significant improvements relative to prior Ru NHC catalysts result, with fast macrocyclization of conformationally flexible dienes at room temperature. PMID- 29345906 TI - Prediction of Hot Spots at Myeloid Cell Leukemia-1-Inhibitor Interface Using Energy Estimation and Alanine Scanning Mutagenesis. AB - Myeloid cell leukemia 1 (Mcl1) is an antiapoptotic protein that plays central role in apoptosis regulation. Also, Mcl1 has the potency to resist apoptotic cues resulting in up-regulation and cancer cell protection. A molecular probe that has the potential to specifically target Mcl1 and thereby provoke its down-regulatory activity is very essential. The aim of the current study is to probe the internal conformational dynamics of protein motions and potential binding mechanism in response to a series of picomolar range Mcl1 inhibitors using explicit-solvent molecular dynamics (MD) simulations. Subsequently, domain cross-correlation and principal component analysis was performed on the snapshots obtained from the MD simulations. Our results showed significant differences in the internal conformational dynamics of Mcl1 with respect to binding affinity values of inhibitors. Further, the binding free energy estimation, using three different samples, was performed on the MD simulations and revealed that the predicted energies (DeltaGmmgbsa) were in good correlation with the experimental values (DeltaGexpt). Also, the energies obtained using all sampling models were efficiently ranked. Subsequently, the decomposition energy analysis highlighted the major energy-contributing residues at the Mcl1 binding pocket. Computational alanine scanning performed on high energy-contributing residues predicted the hot spot residues. The dihedral angle analysis using MD snapshots on the predicted hot spot residue exhibited consistency in side chain conformational motion that ultimately led to strong binding affinity values. The findings from the present study might provide valuable guidelines for the design of novel Mcl1 inhibitors that might significantly improve the specificity for new-generation chemotherapeutic agents. PMID- 29345901 TI - Playing with the Molecules of Life. AB - Our understanding of the complex molecular processes of living organisms at the molecular level is growing exponentially. This knowledge, together with a powerful arsenal of tools for manipulating the structures of macromolecules, is allowing chemists to to harness and reprogram the cellular machinery in ways previously unimaged. Here we review one example in which the genetic code itself has been expanded with new building blocks that allow us to probe and manipulate the structures and functions of proteins with unprecedented precision. PMID- 29345907 TI - Effects of Plant Sterols or beta-Cryptoxanthin at Physiological Serum Concentrations on Suicidal Erythrocyte Death. AB - The eryptotic and hemolytic effects of a phytosterol (PS) mixture (beta sitosterol, campesterol, stigmasterol) or beta-cryptoxanthin (beta-Cx) at physiological serum concentration and their effect against oxidative stress induced by tert-butylhydroperoxide (tBOOH) (75 and 300 MUM) were evaluated. beta Cryptoxanthin produced an increase in eryptotic cells, cell volume, hemolysis, and glutathione depletion (GSH) without ROS overproduction and intracellular Ca2+ influx. Co-incubation of both bioactive compounds protected against beta-Cx induced eryptosis. Under tBOOH stress, PS prevented eryptosis, reducing Ca2+ influx, ROS overproduction and GSH depletion at 75 MUM, and hemolysis at both tBOOH concentrations. beta-Cryptoxanthin showed no cytoprotective effect. Co incubation with both bioactive compounds completely prevented hemolysis and partially prevented eryptosis as well as GSH depletion induced by beta-Cx plus tBOOH. Phytosterols at physiological serum concentrations help to prevent pro eryptotic and hemolytic effects and are promising candidate compounds for ameliorating eryptosis-associated diseases. PMID- 29345908 TI - A Small-Molecule Inhibitor of Human DNA Polymerase eta Potentiates the Effects of Cisplatin in Tumor Cells. AB - Translesion DNA synthesis (TLS) performed by human DNA polymerase eta (hpol eta) allows tolerance of damage from cis-diamminedichloroplatinum(II) (CDDP or cisplatin). We have developed hpol eta inhibitors derived from N-aryl-substituted indole barbituric acid (IBA), indole thiobarbituric acid (ITBA), and indole quinuclidine scaffolds and identified 5-((5-chloro-1-(naphthalen-2-ylmethyl)-1H indol-3-yl)methylene)-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (PNR-7-02), an ITBA derivative that inhibited hpol eta activity with an IC50 value of 8 MUM and exhibited 5-10-fold specificity for hpol eta over replicative pols. We conclude from kinetic analyses, chemical footprinting assays, and molecular docking that PNR-7-02 binds to a site on the little finger domain and interferes with the proper orientation of template DNA to inhibit hpol eta. A synergistic increase in CDDP toxicity was observed in hpol eta-proficient cells co-treated with PNR-7-02 (combination index values = 0.4-0.6). Increased gammaH2AX formation accompanied treatment of hpol eta-proficient cells with CDDP and PNR-7-02. Importantly, PNR-7 02 did not impact the effect of CDDP on cell viability or gammaH2AX in hpol eta deficient cells. In summary, we observed hpol eta-dependent effects on DNA damage/replication stress and sensitivity to CDDP in cells treated with PNR-7-02. The ability to employ a small-molecule inhibitor of hpol eta to improve the cytotoxic effect of CDDP may aid in the development of more effective chemotherapeutic strategies. PMID- 29345909 TI - Metabolomics Study Reveals Enhanced Inhibition and Metabolic Dysregulation in Escherichia coli Induced by Lactobacillus acidophilus-Fermented Black Tea Extract. AB - This study examined the ability of Lactobacillus acidophilus (LA) to ferment black tea extract (BTE) and the enhancement of Escherichia coli cellular uptake of phenolic compounds when these bacteria were incubated with fermented BTE. The inhibitory effects of BTE to E. coli bacteria with and without fermentation were compared. Several intracellular phenolic compounds as well as metabolic profiles of E. coli with and without treatments were also determined using a high performance liquid chromatography-tandem mass spectrometry-based approach. Our results showed that of three concentrations from the non-fermented BTE treatment, only the extract from the 25 mg/mL tea leaves solution could inhibit E. coli survival, while LA-fermented BTE extract from 5, 10, and 25 mg/mL tea leaves solutions all inhibited E. coli growth significantly. Intracellular concentrations of (+)-catechin-3-gallate/(-)-epicatechin-3-gallate and (+) catechin/(-)-epicatechin were significantly higher when E. coli was treated with fermented BTE in comparison to non-fermented BTE. Scanning electron microscopy images indicated that the intracellular phenolic compounds inhibited E. coli growth by increasing endogenous oxidative stress. Metabolic profiles of E. coli were also investigated to understand their metabolic response when treated with BTE, and significant metabolic changes of E. coli were observed. Metabolic profile data were further analyzed using partial least squares discriminant analysis to distinguish the fermented BTE treatment group from the control group and the non-fermented BTE treatment group. The results indicated a large-scale E. coli metabolic dysregulation induced by the fermented BTE. Our findings showed that LA fermentation can be an efficient approach to enhance phenolic inhibition of bacterial cells through increased endogenous oxidative stress and dysregulated metabolic activities. PMID- 29345910 TI - Qualitative and Quantitative Analysis of Ethanolic Extract and Phenolic Fraction of Jatropha aethiopica (Euphorbiaceae) Leaves and Their Hypoglycemic Potential. AB - Although Jatropha aethiopica, popularly known in Cuba as "mata diabetes", is used in salads and as a dietary supplement, its chemical composition and antidiabetic properties yet remains unclear. In this work, we evaluate the qualitative and quantitative composition of ethanolic extract (EE) and phenolic fraction (PF) of Jatropha aethiopica leaves and their hypoglycemic and hypolipidemic activity. Chemical fractionation of the ethanolic extract yielded nine compounds, which included protocatechuic acid (1), chlorogenic acid (2), caffeic acid (3), quercetin 3-O-alpha-l-rhamnopyranosyl-(1 -> 2)-[alpha-l-rhamnopyranolsyl-(1 -> 6)]-beta-d-galactopyranoside (4), a new kaempferol 3-O-alpha-l-rhamnopyranosyl-(1 -> 4)-[alpha-l-rhamnopyranolsyl-(1 -> 6)]-beta-d-galactopyranoside (5), kaempferol 3-O-alpha-l-rhamnopyranosyl-(1 -> 2)-[alpha-l-rhamnopyranolsyl-(1 -> 6)]-beta-d-glucopyranoside (6), rutin (7), kaempferol 3-O-alpha-l-rhamnopyranosyl (1 -> 6)-beta-d-glucopyranoside (8), and quercetin (9). The compounds (1, 4-7) were quantified by high-performance liquid chromatography photodiode array detection (HPLC-PDA) in both the ethanolic extract (62.65 +/- 0.15 mg/g) and phenolic fraction (61.72 +/- 0.23 mg/g). The results obtained show that both ethanolic extract and phenolic fraction contributed toward the improvement of glucose tolerance, which in turn led to a decline in the glucose levels. Remarkably, the ethanolic extract presented a relatively higher promising effect compared to metformin. PMID- 29345911 TI - Role of Glycanation and Convertase Maturation of Soluble Glypican-3 in Inhibiting Proliferation of Hepatocellular Carcinoma Cells. AB - Glypican 3 (GPC3) is a complex heparan sulfate proteoglycan associated with the outer surface of the plasma membrane by a glycosylphosphatidylinositol (GPI) anchor. It is also N-glycosylated and processed by a furin-like convertase. GPC3 has numerous biological functions. Although GPC3 is undetectable in normal liver tissue, it is abnormally and highly overexpressed in hepatocellular carcinoma (HCC). Interestingly, proliferation of HCC cells such as HepG2 and HuH7 is inhibited when they express a soluble form of GPC3 after lentiviral transduction. To obtain more insight into the role of some of its post-translational modifications, we designed a mutant GPC3, sGPC3m, without its GPI anchor, convertase cleavage site, and glycosaminoglycan chains. The highly pure sGPC3m protein strongly inhibited HuH7 and HepG2 cell proliferation in vitro and induced a significant increase in their cell doubling time. It changed the morphology of HuH7 cells but not that of HepG2. It induced the enlargement of HuH7 cell nuclear area and the restructuration of adherent cell junctions. Unexpectedly, for both cell types, the levels of apoptosis, cell division, and beta-catenin were not altered by sGPC3m, although growth inhibition was very efficient. Overall, our data show that glycanation and convertase maturation are not required for sGPC3m to inhibit HCC cell proliferation. PMID- 29345912 TI - A (Re)Discovery of the Fom3 Substrate. PMID- 29345913 TI - Non-Centrosymmetric RbNaMgP2O7 with Unprecedented Thermo-Induced Enhancement of Second Harmonic Generation. AB - It is of great difficulty to obtain deep-UV transparent materials with enhanced second harmonic generation (SHG), mainly limited by the theoretically poor transparency of these materials in the deep-UV spectral region. Here we report a new noncentrosymmetric, deep-UV transparent phosphate RbNaMgP2O7, which undergoes a thermo-induced reversible phase transition (at a high temperature of 723 K) and correspondingly an evident SHG enhancement up to ~1.5 times. The phase transition is aroused by the twist of [P2O7]4- dimers with deviation from the P-O-P equilibrium positions. Theoretical analyses reveal that the enhanced SHG can be ascribed to the thermo-induced collective alignment of SHG-active [P2O7]4- dimers along the polar axis of high-temperature phase. This work provides an unprecedented physical routine (to SHG-enhanced materials) that is distinguished from the traditional one by chemical design and synthesis. PMID- 29345914 TI - Comparative Analysis of EPA/DHA-PL Forage and Liposomes in Orotic Acid-Induced Nonalcoholic Fatty Liver Rats and Their Related Mechanisms. AB - Nonalcoholic fatty liver disease (NAFLD) has become one predictive factor of death from various illnesses. The present study was to comparatively investigate the effects of eicosapentaenoic acid-enriched and docosahexaenoic acid-enriched phospholipids forage (EPA-PL and DHA-PL) and liposomes (lipo-EPA and lipo-DHA) on NAFLD and demonstrate the possible protective mechanisms involved. The additive doses of EPA-PL and DHA-PL in all treatment groups were 1% of total diets, respectively. The results showed that Lipo-EPA could significantly improve hepatic function by down-regulating orotic acid-induced serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels by 55.6% and 34.2%, respectively (p < 0.01). Moreover, lipo-EPA exhibited excellent inhibition on the mRNA expression of SREBP-1c and FAS at the values of 0.454 +/- 0.09 (p < 0.01) and 0.523 +/- 0.08 (p < 0.01), respectively, thus ameliorating OA-induced NAFLD. Meanwhile, lipo-EPA could significantly suppress the SREBP-2 and HMGR levels (31.4% and 66.7%, p < 0.05, respectively). In addition, EPA-PL and lipo DHA could also significantly suppress hepatic lipid accumulation mainly by enhancement of hepatic lipolysis and cholesterol efflux. Furthermore, DHA-PL played a certain role in inhibiting hepatic lipogenesis and accelerating cholesterol efflux. The results obtained in this work might contribute to the understanding of the biological activities of EPA/DHA-PL and liposomes and further investigation on its potential application values for food supplements. PMID- 29345915 TI - The Effect of Water on Quinone Redox Mediators in Nonaqueous Li-O2 Batteries. AB - The parasitic reactions associated with reduced oxygen species and the difficulty in achieving the high theoretical capacity have been major issues plaguing development of practical nonaqueous Li-O2 batteries. We hereby address the above issues by exploring the synergistic effect of 2,5-di-tert-butyl-1,4-benzoquinone and H2O on the oxygen chemistry in a nonaqueous Li-O2 battery. Water stabilizes the quinone monoanion and dianion, shifting the reduction potentials of the quinone and monoanion to more positive values (vs Li/Li+). When water and the quinone are used together in a (largely) nonaqueous Li-O2 battery, the cell discharge operates via a two-electron oxygen reduction reaction to form Li2O2, with the battery discharge voltage, rate, and capacity all being considerably increased and fewer side reactions being detected. Li2O2 crystals can grow up to 30 MUm, more than an order of magnitude larger than cases with the quinone alone or without any additives, suggesting that water is essential to promoting a solution dominated process with the quinone on discharging. The catalytic reduction of O2 by the quinone monoanion is predominantly responsible for the attractive features mentioned above. Water stabilizes the quinone monoanion via hydrogen-bond formation and by coordination of the Li+ ions, and it also helps increase the solvation, concentration, lifetime, and diffusion length of reduced oxygen species that dictate the discharge voltage, rate, and capacity of the battery. When a redox mediator is also used to aid the charging process, a high power, high energy density, rechargeable Li-O2 battery is obtained. PMID- 29345916 TI - Monitoring H2O2 inside Aspergillus fumigatus with an Integrated Microelectrode: The Role of Peroxiredoxin Protein Prx1. AB - Peroxiredoxins (Prx) are important proteins involved in hydroperoxide degradation and are related to virulence in several pathogens, including Aspergillus fumigatus. In this work, in vivo studies on the degradation of hydrogen peroxide (H2O2) in the microenvironment of A. fumigatus fungus were performed by using an integrated Pt microelectrode. Three A. fumigatus strains were used to confirm the role of the cytosolic protein Prx1 in the defense mechanism of this microorganism: a wild-type strain, capable to expressing the protein Prx1; a Deltaprx strain, whose gene prx1 was removed; and a genetically complemented Deltaprx1::prx1+ strain generated from the Deltaprx1 and in which the gene prx1 was reintroduced. The fabricated microelectrode was shown to be a reliable inert probe tip for in situ and real-time measurements of H2O2 in such microenvironments, with potential applications in investigations involving the mechanism of oxidative stress. PMID- 29345917 TI - Anisotropic Assembly of Ag52 and Ag76 Nanoclusters. AB - Although there has been an upsurge of interest in anisotropic assembly of inorganic nanoparticles, atomically precise self-assembly of anisotropic metal clusters is extremely rare. Herein, we presented two novel silver nanoclusters, Ag52 (SD/Ag23) and Ag76 (SD/Ag24), which are interiorly templated by five MoO42- and a pair of Mo6O228- anions, respectively, and coprotected by bridging RSH and terminal diphosphine ligands exteriorly. Regiospecific distribution diphosphine ligands on the surface and the arrangement of multiple molybdate templates within the nanoclusters synergetically tailor their shapes to anisotropic oblate spheroid and elongated rod, respectively. This work not only open up new avenues for the synthesis of silver nanoclusters with novel metal skeleton shapes and anisotropic surface structures but also give important insights for the anisotropic growth of silver nanoclusters through surface modifications or/and template organizations. PMID- 29345918 TI - Anti-Inflammatory and Antioxidant Activities from the Basolateral Fraction of Caco-2 Cells Exposed to a Rosmarinic Acid Enriched Extract. AB - The potential use of Origanum majorana L. as a source of bioavailable phenolic compounds, specifically rosmarinic acid (RA), has been evaluated. Phenolic bioavailability was tested using an in vitro digestion process followed by a Caco 2 cellular model of intestinal absorption. The high-performance liquid chromatography-photodiode array detector-tandem mass spectrometry (HPLC-PAD MS/MS) analysis showed the main components in the extract were 6-hydroxyluteolin 7-O-glucoside and rosmarinic acid, followed by luteolin-O-glucoside. After digestion process, the amount of total phenolic compounds (TPC) only decreased slightly, although a remarkable reduction in RA (near 50%) was detected. Bioavailable fraction contained 7.37 +/- 1.39 mg/L digested extract of RA with small quantities of lithospermic acid and diosmin and presented an important antioxidant activity (0.89 +/- 0.09 mmol Trolox/L digested extract). Besides, this bioavailable fraction produced a significant inhibition in TNF-alpha, IL 1beta, and IL-6 secretion, using a human THP-1 macrophages model. Therefore, RA content in the basolateral compartment could play an important role in the antioxidant and anti-inflammatory activities found. PMID- 29345919 TI - Using Isomeric and Metabolic Ratios of DDT To Identify the Sources and Fate of DDT in Chinese Agricultural Topsoil. AB - The metabolic ratio of (p,p'-DDE + p,p'-DDD)/p,p'-DDT or p,p'-DDE/p,p'-DDT has been used previously to estimate the approximate half-life of p,p'-DDT, with a relatively unclear concept of "old" and "new" sources of p,p'-DDT and without paying attention to the influence by dicofol-type DDT contributed from the more recent usage of dicofol. Based on the isomeric ratio of o,p'-DDT/p,p'-DDT to distinguish the sources of DDT, this study used the corrected metabolic ratio of (p,p'-DDE + p,p'-DDD)/p,p'-DDT to estimate a more accurate half-life of p,p'-DDT using a model-based approach. This indicates the average half-life of p,p'-DDT in Chinese topsoils was 14.2 +/- 0.9 years with dicofol-type DDT input considered. In deeper soil, the half-life was >30 years and the metabolic pathway of p,p'-DDT was significantly different with topsoil's. Further analysis on the fraction of DDT from technical DDT suggested that a region that had been sprayed with technical DDT was likely to have been sprayed with dicofol as well, but the monitoring residues of DDT in topsoil mainly derive from historical use of technical DDT. PMID- 29345921 TI - Molecular Mechanisms in the Selectivity of Nonsteroidal Anti-Inflammatory Drugs. AB - Nonsteroidal anti-inflammatory drugs (NSAIDs) inhibit cyclooxygenase (COX) 1 and 2 with varying degrees of selectivity. A group of COX-2 selective inhibitors coxibs-binds in a time-dependent manner through a three-step mechanism, utilizing a side pocket in the binding site. Coxibs have been extensively probed to identify the structural features regulating the slow tight-binding mechanism responsible for COX-2 selectivity. In this study, we further probe a structurally and kinetically diverse data set of COX inhibitors in COX-2 by molecular dynamics and free energy simulations. We find that the features regulating the high affinities associated with time-dependency in COX depend on the inhibitor kinetics. In particular, most time-dependent inhibitors share a common structural binding mechanism, involving an induced-fit rotation of the side-chain of Leu531 in the main binding pocket. The high affinities of two-step slow tight-binding inhibitors and some slow reversible inhibitors can thus be explained by the increased space in the main binding pocket after this rotation. Coxibs that belong to a separate class of slow tight-binding inhibitors benefit more from the displacement of the neighboring side-chain of Arg513, exclusive to the COX-2 side pocket. This displacement further stabilizes the aforementioned rotation of Leu531 and can explain the selectivity of coxibs for COX-2. PMID- 29345920 TI - Acetylation by Eis and Deacetylation by Rv1151c of Mycobacterium tuberculosis HupB: Biochemical and Structural Insight. AB - Bacterial nucleoid-associated proteins (NAPs) are critical to genome integrity and chromosome maintenance. Post-translational modifications of bacterial NAPs appear to function similarly to their better studied mammalian counterparts. The histone-like NAP HupB from Mycobacterium tuberculosis (Mtb) was previously observed to be acetylated by the acetyltransferase Eis, leading to genome reorganization. We report biochemical and structural aspects of acetylation of HupB by Eis. We also found that the SirT-family NAD+-dependent deacetylase Rv1151c from Mtb deacetylated HupB in vitro and characterized the deacetylation kinetics. We propose that activities of Eis and Rv1151c could regulate the acetylation status of HupB to remodel the mycobacterial chromosome in response to environmental changes. PMID- 29345923 TI - Capped Polyoxometalate Pillars between Metal-Organic Layers for Transferring a Supramolecular Structure into a Covalent 3D Framework. AB - Two robust metal-organic frameworks (MOFs), {H4[Ni(pi-H2O)2]2[Ni(rt H2O)2]8Ni4(Tri)24}[VIVW12O40]2.24H2O (1) and {H[Ni(pi-O)2]2[Ni(rt H2O)2]8Ni4(Tri)24}[VIVW10VV2O40V2][VIVW9VV3O40VIV2].24H2O (2) (Tri = 1,2,4 triazole), composed of polyoxometalates (POMs) and metal-organic units, were designed and synthesized by a hydrothermal method. Structure analysis indicates that there is a metal-organic crown [{Ni3(Tri)6(H2O)4}4] ({Ni12}) in these two compounds. In 1, the {Ni12} crown embraces four pendant Tri ligands that could capture a cationic [Ni(H2O)2]2+ group, resulting in the Ni13-Tri building unit [Ni(H2O)2{Ni3(Tri)6(H2O)4}4] ({Ni13}). The {Ni13} building unit was fused together by Tri bridges into the 2D metal-organic layers, which are pillared by a typical Keggin-type POM [VW12O40]4- to construct a 3D supramolecular framework via the hydrogen bonds. Interestingly, the 2D metal-organic layer in 1 was successfully transferred into a 3D covalent MOF via extension of the length of the pillars by capping a Keggin-type POM with V-O units. Moreover, electrochemical behaviors and electrocatalytic properties of these two compounds were both studied, which can act as bifunctional electrocatalysts toward the reduction of H2O2 and oxidation of nitrite in neutral aqueous solution. PMID- 29345924 TI - Domain-Based Local Pair Natural Orbital Version of Mukherjee's State-Specific Coupled Cluster Method. AB - This article reports development of a local variant of Mukherjee's state-specific multireference coupled cluster method based on the domain-based pair natural orbital approach (DLPNO-MkCC). The current implementation is restricted to connected single and double excitations and model space with up to biexcited references. The performance of the DLPNO-MkCCSD was tested on calculations of tetramethyleneethane. The results show that above 99.9% of the correlation energy was recovered, with respect to the conventional MkCC method. To demonstrate the applicability of the method to large systems, singlet-triplet gaps of triangulene and bis(1-(2,6-diisopropylphenyl)-3,3,5,5-tetramethylpyrrolidine-2 ylidene)beryllium complex were studied. For the last system (105 atoms), we were able to perform a calculation in cc-pVTZ with 2158 basis functions on a single CPU in less than 9 days. PMID- 29345922 TI - Efficient Fusion at Neutral pH by Human Immunodeficiency Virus gp41 Trimers Containing the Fusion Peptide and Transmembrane Domains. AB - Human immunodeficiency virus (HIV) is membrane-enveloped, and an initial infection step is joining/fusion of viral and cell membranes. This step is catalyzed by gp41, which is a single-pass integral viral membrane protein. The protein contains an ~170-residue ectodomain located outside the virus that is important for fusion and includes the fusion peptide (FP), N-helix, loop, C helix, and viral membrane-proximal external region (MPER). The virion initially has noncovalent complexes between three gp41 ectodomains and three gp120 proteins. A gp120 contains ~500 residues and functions to identify target T-cells and macrophages via binding to specific protein receptors of the target cell membrane. gp120 moves away from the gp41 ectodomain, and the ectodomain is thought to bind to the target cell membrane and mediate membrane fusion. The secondary and tertiary structures of the ectodomain are different in the initial complex with gp120 and the final state without gp120. There is not yet imaging of gp41 during fusion, so the temporal relationship between the gp41 and membrane structures is not known. This study describes biophysical and functional characterization of large gp41 constructs that include the ectodomain and transmembrane domain (TM). Significant fusion is observed of both neutral and anionic vesicles at neutral pH, which reflects the expected conditions of HIV/cell fusion. Fusion is enhanced by the FP, which in HIV/cell fusion likely contacts the host membrane, and the MPER and TM, which respectively interfacially contact and traverse the HIV membrane. Initial contact with vesicles is made by protein trimers that are in a native oligomeric state that reflects the initial complex with gp120 and also is commonly observed for the ectodomain without gp120. Circular dichroism data support helical structure for the N-helix, C helix, and MPER and nonhelical structure for the FP and loop. Distributions of monomer, trimer, and hexamer states are observed by size-exclusion chromatography (SEC), with dependences on solubilizing detergent and construct. These SEC and other data are integrated into a refined working model of HIV/cell fusion that includes dissociation of the ectodomain into gp41 monomers followed by folding into hairpins that appose the two membranes, and subsequent fusion catalysis by trimers and hexamers of hairpins. The monomer and oligomer gp41 states may therefore satisfy dual requirements for HIV entry of membrane apposition and fusion. PMID- 29345925 TI - Catalytic Mechanism of the Ubiquitin-Like NEDD8 Transfer in RING E3-E2~NEDD8 Target Complex from QM/MM Free Energy Simulations. AB - Ubiquitin-like (UBL) protein modifications play a key role in regulating protein function. In contrast to the ubiquitin (UB) and small ubiquitin-like modifier (SUMO) which are ligated to a massive segment of proteome, the UBL NEDD8 is highly selective for modifying a lysine residue on closely related cullin proteins (CULs). In this study, the X-ray structure of a trapped E3-E2~NEDD8 target intermediate (RBX1-UBC1~NEDD8-CUL1-DCN1) is used to build computer models, and combined quantum mechanics/molecular mechanics (QM/MM) molecular dynamics (MD) and free energy (potential of mean force) simulations are performed to investigate the catalytic mechanism of the NEDD8 transfer from E2 to the lysine residue (K720) on the substrate in the complex. The role of the active site residues is examined. The simulation results show that either E117 or D143 from E2 may be able to work as a general base catalyst to deprotonate K720 on the substrate, and K720 can then perform the nucleophilic attack on the thioester bond linking E2 and NEDD8. It is also shown that the formation of a new isopeptide bond between K720 and NEDD8 and the breaking of the thioester bond are concerted based on the computer simulations. Furthermore, the results suggest that K720 may act as a general acid catalyst to protonate the leaving group of C111 from E2. The free energy barrier for nucleophilic attack is estimated to be 14-15 kcal/mol based on the free energy simulations. PMID- 29345926 TI - Investigation on the Thermodynamic Dissociation Kinetics of Photosystem II Supercomplexes To Determine the Binding Strengths of Light-Harvesting Complexes. AB - The photosystem II (PSII) supercomplex splits water utilizing light energy and is composed of a core dimer complex surrounded by light-harvesting complexes (LHCs). In green algae, the major LHCs which are LHCII trimers have thus far been categorized into strongly, moderately, or loosely binding LHCII trimers based on their predicted binding to core complexes. However, the binding energies have been indirectly predicted based on the presence or absence of LHCII trimers in the PSII supercomplex under electron microscopy and have not been determined experimentally. In this study, we investigated the binding of LHCII trimers by analyzing thermodynamic dissociation kinetics using isolated PSII supercomplexes. We identified two activation energies for dissociation of LHCII trimers: 54 +/- 19 and 134 +/- 8 kJ/mol. This result indicated the types of intermolecular interactions between LHCII trimers and core complexes. PMID- 29345927 TI - Embedded Multireference Coupled Cluster Theory. AB - Internally contracted multireference coupled cluster (icMRCC) theory is embedded within multireference perturbation theory (MRPT) to calculate energy differences in large strongly correlated systems. The embedding scheme is based on partitioning the orbital spaces of a complete active space self-consistent field (CASSCF) wave function, with a truncated virtual space constructed by transforming selected projected atomic orbitals (PAOs). MRPT is applied to the environment using a subtractive embedding approach that also allows for multilayer embedding. Benchmark calculations are presented for biradical bond dissociation, spin splitting in a heterocyclic carbene and hydrated Fe(II), and for the super-exchange coupling constant in solid nickel oxide. The method is further applied to two large transition metal complexes with a triple-zeta basis set: an iron complex with 175 atoms and 2939 basis functions, and a nickel complex with 231 atoms, and 4175 basis functions. PMID- 29345928 TI - Physicochemical Properties of Whey-Protein-Stabilized Astaxanthin Nanodispersion and Its Transport via a Caco-2 Monolayer. AB - Astaxanthin nanodispersion was prepared using whey protein isolate (WPI) and polymerized whey protein (PWP) through an emulsification-evaporation technique. The physicochemical properties of the astaxanthin nanodispersion were evaluated, and the transport of astaxanthin was assessed using a Caco-2 cell monolayer model. The astaxanthin nanodispersions stabilized by WPI and PWP (2.5%, w/w) had a small particle size (121 +/- 4.9 and 80.4 +/- 5.9 nm, respectively), negative zeta potential (-19.3 +/- 1.5 and -35.0 +/- 2.2 mV, respectively), and high encapsulation efficiency (92.1 +/- 2.9 and 93.5 +/- 2.4%, respectively). Differential scanning calorimetry curves indicated that amorphous astaxanthin existed in both astaxanthin nanodispersions. Whey-protein-stabilized astaxanthin nanodispersion showed resistance to pepsin digestion but readily released astaxanthin after trypsin digestion. The nanodispersions showed no cytotoxicity to Caco-2 cells at a protein concentration below 10 mg/mL. WPI- and PWP stabilized nanodispersions improved the apparent permeability coefficient (Papp) of Caco-2 cells to astaxanthin by 10.3- and 16.1-fold, respectively. The results indicated that whey-protein-stabilized nanodispersion is a good vehicle to deliver lipophilic bioactive compounds, such as astaxanthin, and to improve their bioavailability. PMID- 29345929 TI - Antihypertensive Effects, Molecular Docking Study, and Isothermal Titration Calorimetry Assay of Angiotensin I-Converting Enzyme Inhibitory Peptides from Chlorella vulgaris. AB - The aim of this work is to explore angiotensin I-converting enzyme (ACE) inhibitory peptides from Chlorella vulgaris (C. vulgaris) and discover the inhibitory mechanism of the peptides. After C. vulgaris proteins were gastrointestinal digested in silico, several ACE inhibitory peptides with C terminal tryptophan were screened. Among them, two novel noncompetitive ACE inhibitors, Thr-Thr-Trp (TTW) and Val-His-Trp (VHW), exhibited the highest inhibitory activity indicated by IC50 values 0.61 +/- 0.12 and 0.91 +/- 0.31 MUM, respectively. Both the peptides were demonstrated stable against gastrointestinal digestion and ACE hydrolysis. The peptides were administrated to spontaneously hypertensive rats (SHRs) in the dose 5 mg/kg body weight, and VHW could decrease 50 mmHg systolic blood pressure of SHRs (p < 0.05). Molecular docking displayed that both TTW and VHW formed six hydrogen bonds with active site pockets of ACE. Besides, isothermal titration calorimetry assay discovered that VHW could form more stable complex with ACE than TTW. Therefore, VHW was an excellent ACE inhibitor. PMID- 29345930 TI - alpha-Amino-beta-carboxymuconate-epsilon-semialdehyde Decarboxylase (ACMSD) Inhibitors as Novel Modulators of De Novo Nicotinamide Adenine Dinucleotide (NAD+) Biosynthesis. AB - NAD+ has a central function in linking cellular metabolism to major cell signaling and gene-regulation pathways. Defects in NAD+ homeostasis underpin a wide range of diseases, including cancer, metabolic disorders, and aging. Although the beneficial effects of boosting NAD+ on mitochondrial fitness, metabolism, and lifespan are well established, to date, no therapeutic enhancers of de novo NAD+ biosynthesis have been reported. Herein we report the discovery of 3-[[[5-cyano-1,6-dihydro-6-oxo-4-(2-thienyl)-2 pyrimidinyl]thio]methyl]phenylacetic acid (TES-1025, 22), the first potent and selective inhibitor of human ACMSD (IC50 = 0.013 MUM) that increases NAD+ levels in cellular systems. The results of physicochemical-property, ADME, and safety profiling, coupled with in vivo target-engagement studies, support the hypothesis that ACMSD inhibition increases de novo NAD+ biosynthesis and position 22 as a first-class molecule for the evaluation of the therapeutic potential of ACMSD inhibition in treating disorders with perturbed NAD+ supply or homeostasis. PMID- 29345931 TI - Umbrella Sampling and X-ray Crystallographic Analysis Unveil an Arg-Asp Gate Facilitating Inhibitor Binding Inside Phosphopantetheine Adenylyltransferase Allosteric Cleft. AB - Phosphopantetheine adenylyltransferase (PPAT) is a rate-limiting enzyme essential for biosynthesis of coenzyme A (CoA), which in turn is responsible to regulate the secretion of exotoxins via type III secretion system in Pseudomonas aeruginosa, causing severe health concerns ranging from nosocomial infections to respiratory failure. Acetyl coenzyme A (AcCoA) is a newly reported inhibitor of PPAT, believed to regulate the cellular levels of CoA and thereby the pathogenesis. Very little is known so far regarding the mechanistic details of AcCoA binding inside PPAT-binding cleft. Herein, we have used extensive umbrella sampling simulations to decipher mechanistic insight into the inhibitor accommodation inside the binding cavity. We found that R90 and D94 residues act like a gate near the binding cavity to accommodate and stabilize the incoming ligand. Mutational models concerning these residues also show considerable difference in AcCoA-binding thermodynamics. To substantiate our findings, we have solved the first crystal structure of apo-PPAT from P. aeruginosa, which also found to agree with the simulation results. Collectively, these results describe the mechanistic details of accommodation of inhibitor molecule inside PPAT binding cavity and also offer valuable insight into regulating cellular levels of CoA/AcCoA and thus controlling the pathogenicity. PMID- 29345932 TI - Synthesis of Polysubstituted Quinolines from alpha-2-Aminoaryl Alcohols Via Nickel-Catalyzed Dehydrogenative Coupling. AB - This study reports a nickel-catalyzed sustainable synthesis of polysubstituted quinolines from alpha-2-aminoaryl alcohols by a sequential dehydrogenation and condensation process that offers the advantages of a low catalyst loading and wide substrate scope. In contrast to earlier reported methods, this strategy allows the use of both primary as well as secondary alpha-2-aminoaryl alcohols in combination with either ketones or secondary alcohols for desired product formation. Using this methodology, 30 substituted quinoline derivatives were synthesized with up to 93% isolated yields. PMID- 29345933 TI - Large-Scale Functional Group Symmetry-Adapted Perturbation Theory on Graphical Processing Units. AB - Symmetry-adapted perturbation theory (SAPT) is a valuable method for analyzing intermolecular interactions. The functional group SAPT partition (F-SAPT) has been introduced to provide additional insight into the origins of noncovalent interactions. Until now, SAPT analysis has been too costly for large ligand protein complexes where it could provide key insights for chemical modifications that might improve ligand binding. In this paper, we present a large-scale implementation of a variant of F-SAPT. Two pragmatic choices are made from the outset to render the problem tractable: (1) Ab initio computation of dispersion and exchange-dispersion is replaced with Grimme's empirical dispersion correction. (2) Basis sets with augmented functions are avoided to allow for efficient integral screening. These choices allow the F-SAPT analysis to be written largely in terms of Coulomb and exchange matrix builds which have been implemented efficiently on graphical processing units (GPUs). Our formulation of F-SAPT is routinely applicable to molecules with well over 3000 atoms and 25,000 basis functions and is particularly optimized for the case where one monomer is significantly larger than the other. This is demonstrated explicitly with results from F-SAPT analysis of the full indinavir @ HIV-II protease complex (PDB ID 1HSG ) in a polarized double-zeta basis. PMID- 29345934 TI - Zein Nanoparticles as Eco-Friendly Carrier Systems for Botanical Repellents Aiming Sustainable Agriculture. AB - Botanical repellents represent one of the main ways of reducing the use of synthetic pesticides and the contamination of soil and hydric resources. However, the poor stability and rapid degradation of these compounds in the environment hinder their effective application in the field. Zein nanoparticles can be used as eco-friendly carrier systems to protect these substances against premature degradation, provide desirable release characteristics, and reduce toxicity in the environment and to humans. In this study, we describe the preparation and characterization of zein nanoparticles loaded with the main constituents of the essential oil of citronella (geraniol and R-citronellal). The phytotoxicity, cytotoxicity, and insect activity of the nanoparticles toward target and nontarget organisms were also evaluated. The botanical formulations showed high encapsulation efficiency (>90%) in the nanoparticles, good physicochemical stability, and effective protection of the repellents against UV degradation. Cytotoxicity and phytotoxicity assays showed that encapsulation of the botanical repellents decreased their toxicity. Repellent activity tests showed that nanoparticles containing the botanical repellents were highly repellent against the Tetranychus urticae Koch mite. This nanotechnological formulation offers a new option for the effective use of botanical repellents in agriculture, reducing toxicity, protecting against premature degradation, and providing effective pest control. PMID- 29345935 TI - Rhodium-Catalyzed Asymmetric [2 + 2 + 2] Cycloaddition of Unsymmetrical alpha,omega-Diynes with Acenaphthylene. AB - It has been established that a cationic rhodium(I)/(R)-BINAP complex catalyzes the asymmetric [2 + 2 + 2] cycloaddition of unsymmetrical alpha,omega-diynes with acenaphthylene at room temperature to give the corresponding chiral multicyclic compounds with high yields and ee values. Interestingly, enantioselectivity highly depended on the structures of alpha,omega-diynes used. The structural requirements of alpha,omega-diynes for high enantioselectivity were opposite to those in our previously reported cationic rhodium(I)/(R)-Difluorphos complex catalyzed asymmetric [2 + 2 + 2] cycloaddition of alpha,omega-diynes with indene. PMID- 29345936 TI - Copper-Catalyzed One-Pot Cross-Dehydrogenative Thienannulation: Chemoselective Access to Naphtho[2,1-b]thiophene-4,5-diones and Subsequent Transformation to Benzo[a]thieno[3,2-c]phenazines. AB - A facile, cost-effective, and highly efficient copper-catalyzed, TEMPO-mediated straightforward synthesis of 2,3-disubstituted naphtho[2,1-b]thiophene-4,5-diones has been achieved via cross-dehydrogenative thienannulation. The reaction proceeded via in situ generated naphthalene-1,2-diones by dearomatization of beta naphthols, followed by oxidative heteroannulation with alpha-enolic dithioesters chemoselectively in an open flask. Further, the naphtho[2,1-b]thiophene-4,5 diones undergo l-proline-catalyzed cross-dehydrative coupling with ortho phenylenediamine enabling pentacyclic benzo[a]thieno[3,2-c]phenazines in good yields under solvent-free conditions. A mechanistic rationale for this cascade reaction sequence is well supported by the control experiments. PMID- 29345937 TI - Hole Hopping Rates in Organic Semiconductors: A Second-Order Cumulant Approach. AB - Second-order cumulant expansion of the time dependent reduced density matrix has been employed to evaluate hole hopping rates in pentacene, tetracene, picene, and rubrene homodimers. The cumulant expansion is a full quantum mechanical approach, which enables the use of the whole set of nuclear coordinates in computations and the inclusion of both the effects of the equilibrium position displacements and of normal mode mixing upon hole transfer. The time dependent populations predicted by cumulant approach are in good agreement with those obtained by numerical solution of time dependent Schrodinger equation, even for ultrafast processes, where the Fermi Golden Rule fails. PMID- 29345938 TI - PSO Method for Fitting Analytic Potential Energy Functions. Application to I (H2O). AB - In this work a particle swarm optimization (PSO) algorithm was used to fit an analytic potential energy function to I-(H2O) intermolecular potential energy curves calculated with DFT/B97-1 theory. The analytic function is a sum of two body terms, each written as a generalized sum of Buckingham and Lennard-Jones terms with only six parameters. Two models were used to describe the two-body terms between I- and H2O: a three-site model H2O and a four-site model including a ghost atom. The fits are compared with those obtained with a genetic/nonlinear least-squares algorithm. The ghost atom model significantly improves the fitting accuracy for both algorithms. The PSO fits are significantly more accurate and much less time-consuming than those obtained with the genetic/nonlinear least squares algorithm. Eight I----H2O potential energy curves, fit with the PSO algorithm for the three- and four-site models, have RMSE of 1.37 and 0.22 kcal/mol and compute times of ~20 and ~68 min, respectively. The PSO fit for the four-site model is quite adequate for determining densities of states and partition functions for I-(H2O) n clusters at high energies and temperatures, respectively. The PSO algorithm was also applied to the eight potential energy curves, with the four-site model, for a short time ~8 min fitting. The RMSE was small, only 0.37 kcal/mol, showing the high efficiency of the PSO algorithm with retention of a good fitting accuracy. The PSO algorithm is a good choice for fitting analytic potential energy functions, and for the work presented here was able to find an adequate fit to an I-(H2O) analytic intermolecular potential with a small number of parameters. PMID- 29345940 TI - Environment-Modulated Crystallization of Cu2O and CuO Nanowires by Electrospinning and Their Charge Storage Properties. AB - This article reports the synthesis of cuprous oxide (Cu2O) and cupric oxide (CuO) nanowires by controlling the calcination environment of electrospun polymeric nanowires and their charge storage properties. The Cu2O nanowires showed higher surface area (86 m2 g-1) and pore size than the CuO nanowires (36 m2 g-1). Electrochemical analysis was carried out in 6 M KOH, and both the electrodes showed battery-type charge storage mechanism. The electrospun Cu2O electrodes delivered high discharge capacity (126 mA h g-1) than CuO (72 mA h g-1) at a current density of 2.4 mA cm-2. Electrochemical impedance spectroscopy measurements show almost similar charge-transfer resistance in Cu2O (1.2 Omega) and CuO (1.6 Omega); however, Cu2O showed an order of magnitude higher ion diffusion. The difference in charge storage between these electrodes is attributed to the difference in surface properties and charge kinetics at the electrode. The electrode also shows superior cyclic stability (98%) and Coulombic efficiency (98%) after 5000 cycles. Therefore, these materials could be acceptable choices as a battery-type or pseudocapacitive electrode in asymmetric supercapacitors. PMID- 29345939 TI - Discovery of Alternative Producers of the Enediyne Antitumor Antibiotic C-1027 with High Titers. AB - The potent cytotoxicity and unique mode of action make the enediyne antitumor antibiotic C-1027 an exquisite drug candidate for anticancer chemotherapy. However, clinical development of C-1027 has been hampered by its low titer from the original producer Streptomyces globisporus C-1027. Here we report three new C 1027 alternative producers, Streptomyces sp. CB00657, CB02329, and CB03608, from The Scripps Research Institute actinomycetes strain collection. Together with the previously disclosed Streptomyces sp. CB02366 strain, four C-1027 alternative producers with C-1027 titers of up to 11-fold higher than the original producer have been discovered. The five C-1027 producers, isolated from distant geographic locations, are distinct Streptomyces strains based on morphology and taxonomy. Pulsed-field gel electrophoresis and Southern analysis of the five C-1027 producers reveal that their C-1027 biosynthetic gene clusters (BGCs) are all located on giant plasmids of varying sizes. The high nucleotide sequence similarity among the five C-1027 BGCs implies that they most likely have evolved from a common ancestor. PMID- 29345941 TI - Dual Signaling DNA Electrochemistry: An Approach To Understand DNA Interfaces. AB - Electrochemical DNA biosensors composed of a redox marker modified nucleic acid probe tethered to a solid electrode is a common experimental construct for detecting DNA and RNA targets, proteins, inorganic ions, and even small molecules. This class of biosensors generally relies on the binding-induced conformational changes in the distance of the redox marker relative to the electrode surface such that the charge transfer is altered. The conventional design is to attach the redox species to the distal end of a surface-bound nucleic acid strand. Here we show the impact of the position of the redox marker, whether on the distal or proximal end of the DNA monolayer, on the DNA interface electrochemistry. Somewhat unexpectedly, greater currents were obtained when the redox molecules were located on the distal end of the surface-bound DNA monolayer, notionally furthest away from the electrode, compared with currents when the redox species were located on the proximal end, close to the electrode. Our results suggest that a limitation in ion accessibility is the reason why smaller currents were obtained for the redox markers located at the bottom of the DNA monolayer. This understanding shows that to allow the quantification of the amount of redox labeled target DNA strand that hybridizes to probe DNA immobilized on the electrode surface, the redox species must be on the distal end of the surface-bound duplex. PMID- 29345942 TI - Highly Stereoselective 2-Oxonia-Cope Rearrangement: A Platform Enabling At-Will Control of Regio-, Enantio-, and Diastereoselectivity in the Vinylogous Aldol Reactions of Aldehydes. AB - A distinctly different approach for the vinylogous aldolation of aldehydes is described, which exploits 2-oxonia-Cope rearrangement reactions between two readily available partners, a set of rationally designed chiral homoallylic alcohol synthons and aldehydes, under simple conditions. In these processes, chirality transfer from the former to the latter is nearly perfect, giving rise to excellent enantio- and diastereoselectivity without the regioselectivity issue associated with traditional vinylogous aldol reactions. PMID- 29345944 TI - Correction to Nanoscale Control of Morphology in Fullerene-Based Electron Conducting Buffers via Organic Vapor Phase Deposition. PMID- 29345943 TI - Oxycyanation of Vinyl Ethers with 2,2,6,6-Tetramethyl-N-oxopiperidinium Enabled by Electron Donor-Acceptor Complex. AB - An efficient and mild oxycyanation of vinyl ethers with 2,2,6,6-tetramethyl-N oxopiperidinium and TMSCN is described. The mechanistic studies indicated that the formation of an electron donor-acceptor complex and subsequent single electron-transfer process could be involved in the reaction. PMID- 29345945 TI - Chitosan-Silica Hybrid Composites for Removal of Sulfonated Azo Dyes from Aqueous Solutions. AB - In this study, the influence of the chitosan immobilization method on the properties of final hybrid materials was performed. Chitosan was immobilized on the surface of mesoporous (ChS2) and fumed silica (ChS3) by physical adsorption and the sol-gel method (ChS1). It was found that physical immobilization of chitosan allows to obtain hybrid composites (ChS) with a homogeneous distribution of polymer on the surface, relatively wide pores, and specific surface area of about 170 m2/g, pHPZC = 5.7 for ChS3 and 356 m2/g and pHPZC = 6.0 for ChS2. The microporous chitosan-silica material with a specific surface area of 600 m2/g and a more negatively charged surface (pHPZC = 4.2) was obtained by the sol-gel reaction. The mechanisms of azo dye adsorption were studied, and the correlation with the composite structure was distinguished. The generalized Langmuir equation and its special cases, that is, Langmuir-Freundlich and Langmuir equations, were applied for the analysis of adsorption isotherm data. The adsorption study showed that physically adsorbed chitosan (ChS1 and ChS2) on a silica surface has a higher sorption capacity, for example, 0.48 mmol/g for the acid red 88 (AR88) dye (ChS2) and 0.23 mmol/g for the acid orange 8 (AO8) dye (ChS1), compared to the composite obtained by the sol-gel method [ChS1, 0.05 mmol/g for the AO8 dye]. For a deeper understanding of the behavior of immobilized chitosan in the adsorption processes, various kinetic equations were applied: first-order, second-order, mixed 1,2-order (MOE), multiexponential, and fractal-like MOE as well as intraparticle and pore diffusion model equations. In the case of AO8 dye, the adsorption rates were differentiated for three composites: for ChS3, 50% of the dye was removed from the solution after merely 5 min and almost 90% after 80 min. The slowest adsorption process controlled by the diffusion rate of dye molecules into the internal space of the pore structure was found for ChS1 (225 min halftime). In the case of ChS2, the rates for various dyes change in the following order: acid orange (AO7) > orange G (OG) > acid red 1 (AR1) > AR88 > AO8 (halftimes: 10.5 < 15.7 < 23.7 < 34.9 < 42.9 min). PMID- 29345946 TI - Cooperative Metal-Ligand Catalyzed Intramolecular Hydroamination and Hydroalkoxylation of Allenes Using a Stable Iron Catalyst. AB - A new iron-catalyzed chemoselective intramolecular hydroamination and hydroalkoxylation of the readily available alpha-allenic amines and alcohols to valuable unsaturated 5-membered heterocycles, 2,3-dihydropyrrole and 2,3 dihydrofuran, is reported. Effective selectivity control is achieved by a metal ligand cooperative activation of the substrates. The mild reaction conditions and the use of low amounts of an air and moisture stable iron catalyst allow for the hydrofunctionalization of a wide range of allenes bearing different functional groups in good yields in the absence of base or any sensitive additives. PMID- 29345947 TI - Nucleophilic Ring Opening of Donor-Acceptor Cyclopropanes Catalyzed by a Bronsted Acid in Hexafluoroisopropanol. AB - A general, Bronsted acid catalyzed method for the room temperature, nucleophilic ring opening of donor-acceptor cyclopropanes in fluorinated alcohol solvent, HFIP, is described. Salient features of this method include an expanded cyclopropane scope, including those bearing single keto-acceptor groups and those bearing electron-deficient aryl groups. Notably, the catalytic system proved amenable to a wide range of nucleophiles including arenes, indoles, azides, diketones, and alcohols. PMID- 29345948 TI - Matched Coupling of Propargylic Carbonates with Cyclopropanols. AB - The ring opening-coupling reaction of cyclopropanols with propargylic carbonates affording synthetically attractive allenyl ketones has been developed. The mechanism involves the ligand-exchange reaction of in situ formed allenyl palladium methoxide with cyclopropanols followed by carbon-carbon bond cleavage and reductive elimination. The reactions proceeded smoothly under mild reaction conditions with Pd(0)/XPhos catalysis in the absence of any external base and displayed a wide scope and application to a steroidal skeleton. The efficiency of chirality transfer and synthetic utility of the allene products have also been demonstrated. PMID- 29345949 TI - Surface State Dynamics Dictating Transport in InAs Nanowires. AB - Because of their high aspect ratio, nanostructures are particularly susceptible to effects from surfaces such as slow electron trapping by surface states. However, nonequilibrium trapping dynamics have been largely overlooked when considering transport in nanoelectronic devices. In this study, we demonstrate the profound influence of dynamic trapping processes on transport in InAs nanowires through an investigation of the hysteretic and time-dependent behavior of the transconductance. We observe large densities (~1013 cm-2) of slow surface traps and demonstrate the ability to control and permanently fix their occupation and charge through electrostatic manipulation by the gate potential followed by thermal deactivation by cryogenic cooling. Furthermore, we observe a transition from enhancement- to depletion-mode and a 400% change in field-effect mobility within the same device when the initial gate voltage and sweep rate are varied, revealing the severe impact of electrostatic history and dynamics on InAs nanowire field-effect transistors. A time-dependent model for nanowire transconductance based on nonequilibrium carrier population dynamics with thermally activated capture and emission was constructed and showed excellent agreement with experiments, confirming the effects to be a direct result of the dynamics of slow surface traps characterized by large thermal activation barriers (~ 700 meV). This work reveals a clear and direct link between the electrical conductivity and the microscopic interactions of charged species with nanowire surfaces and highlights the necessity for considering dynamic properties of surface states in nanoelectronic devices. PMID- 29345950 TI - Confined Electroconvective Vortices at Structured Ion Exchange Membranes. AB - In this paper, we investigate electroconvective ion transport at cation exchange membranes with different geometry square-wave structures (line undulations) experimentally and numerically. Electroconvective microvortices are induced by strong concentration polarization once a threshold potential difference is applied. The applied potential required to start and sustain electroconvection is strongly affected by the geometry of the membrane. A reduction in the resistance of approximately 50% can be obtained when the structure size is similar to the mixing layer (ML) thickness, resulting in confined vortices with less lateral motion compared to the case of flat membranes. From electrical, flow, and concentration measurements, ion migration, advection, and diffusion are quantified, respectively. Advection and migration are dominant in the vortex ML, whereas diffusion and migration are dominant in the stagnant diffusion layer. Numerical simulations, based on Poisson-Nernst-Planck and Navier-Stokes equations, show similar ion transport and flow characteristics, highlighting the importance of membrane topology on the resulting electrokinetic and electrohydrodynamic behavior. PMID- 29345951 TI - Visible-Light-Driven Silver-Catalyzed One-Pot Approach: A Selective Synthesis of Diaryl Sulfoxides and Diaryl Sulfones. AB - An efficient one-pot approach for the synthesis of diaryl sulfoxides and diaryl sulfones using aryl thiols and aryl diazonium salts was developed. The use of a visible-light-driven silver catalysis and the subsequent singlet-oxygen-induced oxidation enabled selective synthesis of sulfoxides and sulfones in the absence of a photocatalyst. The reactions were carried out under mild reaction conditions; the desired products were obtained under air atmosphere at room temperature. PMID- 29345952 TI - Visible-Light-Enabled Preparation of Palladium Nanoparticles and Application as Catalysts for Suzuki-Miyaura Coupling. AB - Silyl ketones were used for the preparation of palladium nanoparticles (PdNPs) starting with Pd(OAc)2 in dimethylformamide under irradiation with a visible light-emitting diode (LED). Variation of the silyl ketone structure allowed adjustment of the PdNP diameter (1.9 or 5.2 nm). The in situ-formed PdNPs were further stabilized with polyvinylpyrrolidone and then applied as recyclable catalysts in the Suzuki-Miyaura coupling of arylboronic acids with aryl iodides to obtain substituted biphenyls in excellent yields. PMID- 29345953 TI - Micro to Nanoscale Engineering of Surface Precipitates Using Reconfigurable Contact Lines. AB - Nanoscale engineering has traditionally adopted the chemical route of synthesis or optochemical techniques such as lithography requiring large process times, expensive equipment, and an inert environment. Directed self-assembly using evaporation of nanocolloidal droplet can be a potential low-cost alternative across various industries ranging from semiconductors to biomedical systems. It is relatively simple to scale and reorient the evaporation-driven internal flow field in an evaporating droplet which can direct dispersed matter into functional agglomerates. The resulting functional precipitates not only exhibit macroscopically discernible changes but also nanoscopic variations in the particulate assembly. Thus, the evaporating droplet forms an autonomous system for nanoscale engineering without the need for external resources. In this article, an indigenous technique of interfacial re-engineering, which is both simple and inexpensive to implement, is developed. Such re-engineering widens the horizon for surface patterning previously limited by the fixed nature of the droplet interface. It involves handprinting hydrophobic lines on a hydrophilic substrate to form a confinement of any selected geometry using a simple document stamp. Droplets cast into such confinements get modulated into a variety of shapes. The droplet shapes control the contact line behavior, evaporation dynamics, and complex internal flow pattern. By exploiting the dynamic interplay among these variables, we could control the deposit's macro- as well as nanoscale assembly not possible with simple circular droplets. We provide a detailed mechanism of the coupling at various length scales enabling a predictive capability in custom engineering, particularly useful in nanoscale applications such as photonic crystals. PMID- 29345954 TI - Irradiation-Induced Palladium-Catalyzed Decarboxylative Heck Reaction of Aliphatic N-(Acyloxy)phthalimides at Room Temperature. AB - It is reported that Pd(PPh3)2Cl2 in combination with 4,5-bis(diphenylphosphino) 9,9-dimethylxanthene (Xantphos) under irradiation of blue LEDs efficiently catalyzes a decarboxylative Heck reaction of vinyl arenes and vinyl heteroarenes with aliphatic N-(acyloxy)phthalimides at room temperature. A broad scope of secondary, tertiary, and quaternary carboxylates, including alpha-amino acid derived esters, can be applied as amenable substrates with high stereoselectivity. The experimental observation was explained by excitation-state reactivity of the palladium complex under irradiation to induce single-electron transfer to activate N-(acyloxy)phthalimides, and to suppress undesired beta hydride elimination of alkyl palladium intermediates. PMID- 29345955 TI - Investigation of Polymer/Surfactant Interactions and Their Impact on Itraconazole Solubility and Precipitation Kinetics for Developing Spray-Dried Amorphous Solid Dispersions. AB - Methods were developed to systematically screen different polymer-surfactant combinations for the purpose of enhancing amorphous active pharmaceutical ingredient (API) solubility while maintaining its physical stability. Itraconazole (ITZ) was chosen as the model API mostly due to its low aqueous solubility. Special attention was paid to determine the effect of a reduction in the critical micelle concentration (CMC) by specific polymer/surfactant combinations on the ITZ solubility and physical stability. However, only a slight correlation was actually found. Only the polymer/surfactant combinations with the smallest effect on CMC improved solubility and stability of ITZ in simulated intestinal fluids (SIF). Surfactants were found to negate the stabilizing effects of polymers. ITZ crystallization tendency generally depended on the degree of supersaturation and the type of polymer/surfactant combinations used. In general, we found that instead of focusing solely on reducing the CMC, a systematic screening of systems that maintain high ITZ supersaturation proved to be a successful approach. PMID- 29345956 TI - Measuring Three-Dimensional Strain and Structural Defects in a Single InGaAs Nanowire Using Coherent X-ray Multiangle Bragg Projection Ptychography. AB - III-As nanowires are candidates for near-infrared light emitters and detectors that can be directly integrated onto silicon. However, nanoscale to microscale variations in structure, composition, and strain within a given nanowire, as well as variations between nanowires, pose challenges to correlating microstructure with device performance. In this work, we utilize coherent nanofocused X-rays to characterize stacking defects and strain in a single InGaAs nanowire supported on Si. By reconstructing diffraction patterns from the 2110 Bragg peak, we show that the lattice orientation varies along the length of the wire, while the strain field along the cross-section is largely unaffected, leaving the band structure unperturbed. Diffraction patterns from the 0110 Bragg peak are reproducibly reconstructed to create three-dimensional images of stacking defects and associated lattice strains, revealing sharp planar boundaries between different crystal phases of wurtzite (WZ) structure that contribute to charge carrier scattering. Phase retrieval is made possible by developing multiangle Bragg projection ptychography (maBPP) to accommodate coherent nanodiffraction patterns measured at arbitrary overlapping positions at multiple angles about a Bragg peak, eliminating the need for scan registration at different angles. The penetrating nature of X-ray radiation, together with the relaxed constraints of maBPP, will enable the in operando imaging of nanowire devices. PMID- 29345957 TI - Besifloxacin: A Critical Review of Its Characteristics, Properties, and Analytical Methods. AB - Bacterial conjunctivitis has high impact on the health of the population, since it represents more than a third of ocular pathologies reported by health services worldwide. There is a high incidence of bacterial resistance to the antimicrobials most commonly used for the treatment of conjunctivitis. In this context, besifloxacin stands out, since it is a fluoroquinolone developed exclusively for topical ophthalmic use, presenting a low risk of developing resistance due to its reduced systemic exposure. Bausch & Lomb markets it as ophthalmic suspension, under the trade name BesivanceTM. Literature review on besifloxacin is presented, covering its pharmaceutical and clinical characteristics, and the analytical methods used to measure the drug in pharmaceutical products and biological samples. High performance liquid chromatography is the most used method for this purpose. A discussion on Green Chemistry is also presented, focusing the importance of the development of green analytical methods for the analysis of drugs. PMID- 29345958 TI - Plasma Cell Variant Multicentric Castleman Disease and Kaposi's Sarcoma in a Treatment-Naive HIV-Infected Patient. PMID- 29345959 TI - Have We Not Learned from Past Mistakes? PMID- 29345960 TI - Pacing strategies by age in marathon cross-country skiing. AB - OBJECTIVES: Pacing strategies have mainly been investigated for runners, but little is known for cross-country skiers. The aim of the present study was to investigate whether differences in pacing strategies do exist between younger and older cross-country skiers competing in the 42 km 'Engadin Ski Marathon'. METHODS: Pacing was studied in 105,565 cross-country skiers (classified in 5-year age groups) competing between 1998 and 2016 in this race by examining changes of mean section velocity in 10 km (Change A, i.e. 100*(velocity in the 10-20 km section - velocity in the 0-10 km section)/velocity in the 0-10 km section), 20 km (Change B) and 35 km (Change C). RESULTS: A small sex*distance (i.e. Change A versus Change B versus Change C) interaction on change of velocity was shown (P < .001, eta2 = 0.016), with women showing a less even pacing than men. In women, there was a trivial main effect of age group on Change A (P < .001, eta2 = 0.008) with a smaller decrease in velocity in age group <20 (-7.4%) and larger decrease in velocity in age group 75-79 (-12.8%), and Change B (P = .006, eta2 = 0.004) with smaller increase in velocity in age group 75-79 (+30.6%) and larger increase in velocity in age group 40-44 (+37.7%), but not on Change C (P = .784, eta2 = 0.003). In men, a small main effect of age group on Change A was shown (P < .001, eta2 = 0.019), with a smaller decrease of velocity in age group <20 (-3.5%) and larger in age group 70-74 (-10.5%). Trivial main effects of age group on Change B (P < .001, eta2 = .002), with a smaller increase of velocity in age group 85-89 (+25.8%) and larger increase in age group 70-74 (+33.0%), and Change C (P < .001, eta2 = 0.003), with smaller decrease of velocity in age group 85-89 (-38.2%) and larger decrease in age group 80-84 (-41.0%), were found. CONCLUSIONS: Based on these findings, it was concluded that men and young cross-country skiers had a more even pacing than women and older cross-country skiers, which was in contrast with previous findings in other endurance sports, suggesting that the sex- and age-related differences in pacing might be sport-dependent. PMID- 29345961 TI - Effects of Quercetin, Kaempferol, and Exogenous Glutathione on Phospho- and Total AKT in 3T3-L1 Preadipocytes. AB - Obesity has been reported to be a risk factor for some types of cancer, such as prostate and lung. The AKT or PI3K-AKT is a signal transduction pathway that promotes survival and growth in response to extracellular signals. The aim of this study was to investigate the effects of two flavonoids, quercetin and kaempferol, and exogenous glutathione (GSH) on the expressions of phospho- and total-AKT levels in 3T3-L1 preadipocytes. Glyceraldehyde 3-phosphate dehydrogenase (GAPDH) levels were measured in the treated samples and used as the internal standard. 3T3-L1 preadipocytes were exposed to each flavonoid and GSH at concentrations of 0, 5, 10, 15, 20, and 25 uM, and the levels of phospho- and total-Akt were measured by the MILLIPLEX MAP mates protocol, based on the Luminex xMAP technology (Millipore Corp., St. Charles, MI, USA). GAPDH levels in the preadipocytes were not significantly different at the doses tested for the flavonoids and exogenous GSH. However, significant (p <.05) decreases in phospho AKT levels in cells treated with quercetin, kaempferol, and GSH at certain doses were observed compared to their respective controls. Total-AKT levels showed the same profile for all the tested compounds. Significant (p <.01) differences were observed for kaempferol (15-25 uM), quercetin at 10 and 20 uM, and GSH at 10 uM compared to their respective controls. Findings suggest that exposure of 3T3-L1 preadipocytes to quercetin, kaempferol, and GSH may block the activation of AKT, suggesting the role such compounds play in cell differentiation in 3T3-L1 cells. PMID- 29345962 TI - Role of selected polymorphisms in determining muscle fiber composition in Japanese men and women. AB - Genetic polymorphisms and sex differences are suggested to affect muscle fiber composition; however, no study has investigated the effects of genetic polymorphisms on muscle fiber composition with respect to sex differences. Therefore, the present study examined the effects of genetic polymorphisms on muscle fiber composition with respect to sex differences in the Japanese population. The present study included 211 healthy Japanese individuals (102 men and 109 women). Muscle biopsies were obtained from the vastus lateralis to determine the proportion of myosin heavy chain (MHC) isoforms (MHC-I, MHC-IIa, and MHC-IIx). Moreover, we analyzed polymorphisms in alpha-actinin-3 gene ( ACTN3; rs1815739 ), angiotensin-converting enzyme gene ( ACE; rs4341 ), hypoxia inducible factor 1 alpha gene ( rs11549465 ), vascular endothelial growth factor receptor 2 gene ( rs1870377 ), and angiotensin II receptor, type 2 gene ( rs11091046 ), by TaqMan single-nucleotide polymorphism genotyping assays. The proportion of MHC-I was 9.8% lower in men than in women, whereas the proportion of MHC-IIa and MHC-IIx was higher in men than in women (5.0 and 4.6%, respectively). Men with the ACTN3 RR + RX genotype had a 4.8% higher proportion of MHC-IIx than those with the ACTN3 XX genotype. Moreover, men with the ACE ID + DD genotype had a 4.7% higher proportion of MHC-I than those with the ACE II genotype. Furthermore, a combined genotype of ACTN3 R577X and ACE insertion/deletion (I/D) was significantly correlated with the proportion of MHC I ( r = -0.23) and MHC-IIx ( r = 0.27) in men. In contrast, no significant correlation was observed between the examined polymorphisms and muscle fiber composition in women. These results suggest that the ACTN3 R577X and ACE I/D polymorphisms independently affect the proportion of human skeletal muscle fibers MHC-I and MHC-IIx in men but not in women. NEW & NOTEWORTHY In men, the RR + RX genotype of the alpha-actinin-3 gene ( ACTN3) R577X polymorphism was associated with a higher proportion of myosin heavy chain (MHC)-IIx. The ID + DD genotype of the angiotensin-converting enzyme gene ( ACE) insertion/deletion (I/D) polymorphism, in contrast to a previous finding, was associated with a higher proportion of MHC-I in men. In addition, the combined genotype of these polymorphisms was correlated with the proportion of MHC-I and MHC-IIx in men. Thus ACTN3 R577X and ACE I/D polymorphisms influence the muscle fiber composition in Japanese men. PMID- 29345963 TI - Deletion of estrogen receptor alpha in skeletal muscle results in impaired contractility in female mice. AB - Estradiol deficiency in females can result in skeletal muscle strength loss, and treatment with estradiol mitigates the loss. There are three primary estrogen receptors (ERs), and estradiol elicits effects through these receptors in various tissues. Ubiquitous ERalpha-knockout mice exhibit numerous biological disorders, but little is known regarding the specific role of ERalpha in skeletal muscle contractile function. The purpose of this study was to determine the impact of skeletal muscle-specific ERalpha deletion on contractile function, hypothesizing that ERalpha is a main receptor through which estradiol affects muscle strength in females. Deletion of ERalpha specifically in skeletal muscle (skmERalphaKO) did not affect body mass compared with wild-type littermates (skmERalphaWT) until 26 wk of age, at which time body mass of skmERalphaKO mice began to increase disproportionally. Overall, skmERalphaKO mice had low strength demonstrated in multiple muscles and by several contractile parameters. Isolated extensor digitorum longus muscles from skmERalphaKO mice produced 16% less eccentric and 16-26% less submaximal and maximal isometric force, and isolated soleus muscles were more fatigable, with impaired force recovery relative to skmERalphaWT mice. In vivo maximal torque productions by plantarflexors and dorsiflexors were 16% and 12% lower in skmERalphaKO than skmERalphaWT mice, and skmERalphaKO muscles had low phosphorylation of myosin regulatory light chain. Plantarflexors also generated 21-32% less power, submaximal isometric and peak concentric torques. Data support the hypothesis that ablation of ERalpha in skeletal muscle results in muscle weakness, suggesting that the beneficial effects of estradiol on muscle strength are receptor mediated through ERalpha. NEW & NOTEWORTHY We comprehensively measured in vitro and in vivo skeletal muscle contractility in female estrogen receptor alpha (ERalpha) skeletal muscle-specific knockout mice and report that force generation is impaired across multiple parameters. These results support the hypothesis that a primary mechanism through which estradiol elicits its effects on strength is mediated by ERalpha. Evidence is presented that estradiol signaling through ERalpha appears to modulate force at the molecular level via posttranslational modifications of myosin regulatory light chain. PMID- 29345965 TI - The case for exploring the usage of employee wellness programs for pediatric asthma control. AB - The multiple socioecological determinants of asthma mandate that pediatricians develop a treatment strategy beyond the practice-based setting. To expand to a more impactful community-based role, pediatricians must look to form partnerships with groups that are capable of promoting social and environmental change. Traditionally, these groups have included schools, governmental agencies, and child care establishments. One group that is not actively being availed of are employers who have shown success in improving adult-based outcomes through wellness programs. Employers are stakeholders in pediatric asthma care through its impact on reduced worker productivity and higher health insurance premiums. An employer's focus on pediatric asthma will be a collective win for the employer and employee. The article herein describes the rationale for the focus of employers on pediatric asthma care and potential incorporation within employer based wellness strategies. PMID- 29345966 TI - No Room for Error in Medicine-A Case of Deja Vu. PMID- 29345967 TI - Reclassifying Acute Respiratory Distress Syndrome. AB - RATIONALE: The ratio of PaO2 to FiO2 (P/F) defines acute respiratory distress syndrome (ARDS) severity and suggests appropriate therapies. OBJECTIVES: We investigated 1) whether a 150-mm-Hg P/F threshold within the range of moderate ARDS (100-200 mm Hg) would define two subgroups that were more homogeneous; and 2) which criteria led the clinicians to apply extracorporeal membrane oxygenation (ECMO) in severe ARDS. METHODS: At the 150-mm-Hg P/F threshold, moderate patients were split into mild-moderate (n = 50) and moderate-severe (n = 55) groups. Patients with severe ARDS (FiO2 not available in three patients) were split into higher (n = 63) and lower (n = 18) FiO2 groups at an 80% FiO2 threshold. MEASUREMENTS AND MAIN RESULTS: Compared with mild-moderate ARDS, patients with moderate-severe ARDS had higher peak pressures, PaCO2, and pH. They also had heavier lungs, greater inhomogeneity, more noninflated tissue, and greater lung recruitability. Within 84 patients with severe ARDS (P/F < 100 mm Hg), 75% belonged to the higher FiO2 subgroup. They differed from the patients with severe ARDS with lower FiO2 only in PaCO2 and lung weight. Forty-one of 46 patients treated with ECMO belonged to the higher FiO2 group. Within this group, the patients receiving ECMO had higher PaCO2 than the 22 non-ECMO patients. The inhomogeneity ratio, total lung weight, and noninflated tissue were also significantly higher. CONCLUSIONS: Using the 150-mm-Hg P/F threshold gave a more homogeneous distribution of patients with ARDS across the severity subgroups and identified two populations that differed in their anatomical and physiological characteristics. The patients treated with ECMO belonged to the severe ARDS group, and almost 90% of them belonged to the higher FiO2 subgroup. PMID- 29345968 TI - Mature gastric chief cells are not required for the development of metaplasia. AB - During human gastric carcinogenesis, intestinal metaplasia is frequently seen in the atrophic stomach. In mice, a distinct type of metaplasia known as spasmolytic polypeptide-expressing metaplasia (SPEM) is found in several inflammatory and genetically engineered models. Given the diversity of long- and short-term models of mouse SPEM, it remains unclear whether all models have a shared or distinct molecular mechanism. The origin of SPEM in mice is presently under debate. It is postulated that stem or progenitor cells acquire genetic alterations that then supply metaplastic cell clones, whereas the possibility of transdifferentiation or dedifferentiation from mature gastric chief cells has also been suggested. In this study, we report that loss of chief cells was sufficient to induce short term regenerative SPEM-like lesions that originated from chief cell precursors in the gastric neck region. Furthermore, Lgr5+ mature chief cells failed to contribute to both short- and long-term metaplasia, whereas isthmus stem and progenitor cells efficiently contributed to long-term metaplasia. Interestingly, multiple administrations of high-dose pulsed tamoxifen induced expansion of Lgr5 expression and Lgr5-CreERT recombination within the isthmus progenitors apart from basal chief cells. Thus we conclude that short-term SPEM represents a regenerative process arising from neck progenitors following chief cell loss, whereas true long-term SPEM originates from isthmus progenitors. Mature gastric chief cells may be dispensable for SPEM development. NEW & NOTEWORTHY Recently, dedifferentiation ability in gastric chief cells during metaplasia development has been proposed. Our findings reveal that lesions that were thought to be acute metaplasia in fact represent normal regeneration supplied from neck lineage and that isthmus stem/progenitors are more responsible for sustained metaplastic changes. Cellular plasticity in gastric chief cells may be more limited than recently highlighted. PMID- 29345964 TI - Immune Response to Dengue and Zika. AB - Flaviviruses such as dengue (DENV), yellow fever (YFV), West Nile (WNV), and Zika (ZIKV) are human pathogens of global significance. In particular, DENV causes the most prevalent mosquito-borne viral diseases in humans, and ZIKV emerged from obscurity into the spotlight in 2016 as the etiologic agent of congenital Zika syndrome. Owing to the recent emergence of ZIKV as a global pandemic threat, the roles of the immune system during ZIKV infections are as yet unclear. In contrast, decades of DENV research implicate a dual role for the immune system in protection against and pathogenesis of DENV infection. As DENV and ZIKV are closely related, knowledge based on DENV studies has been used to prioritize investigation of ZIKV immunity and pathogenesis, and to accelerate ZIKV diagnostic, therapeutic, and vaccine design. This review discusses the following topics related to innate and adaptive immune responses to DENV and ZIKV: the interferon system as the key mechanism of host defense and viral target for immune evasion, antibody-mediated protection versus antibody-dependent enhancement, and T cell-mediated protection versus original T cell antigenic sin. Understanding the mechanisms that regulate the balance between immune-mediated protection and pathogenesis during DENV and ZIKV infections is critical toward development of safe and effective DENV and ZIKV therapeutics and vaccines. PMID- 29345969 TI - Reply to Dahm et al., to Shah et al., and to Schunemann and Brozek. PMID- 29345971 TI - A Blast from the Past-Back to the 1970s. PMID- 29345970 TI - The Prevalence and Significance of Staphylococcus aureus in Patients with Non Cystic Fibrosis Bronchiectasis. AB - RATIONALE: Staphylococcus aureus is commonly cultured from the sputum of patients with bronchiectasis; however, little is known about the prevalence of the organism in these patients, the characteristics of patients who have grown the organism, or its implications. OBJECTIVES: Determine the relationship between S. aureus and pulmonary function, frequency of exacerbations, and frequency of hospitalization in patients with bronchiectasis Methods: The Bronchiectasis Research Registry is a database of adults with non-cystic fibrosis bronchiectasis identified from 13 sites within the United States. Baseline and follow-up demographic, spirometric, microbiologic, and therapeutic data were entered into a central web-based database. Patients were grouped into three cohorts based on their previous respiratory cultures at the time of entry into the Registry: 1) no prior S. aureus or glucose-nonfermenting gram-negative bacilli (NF-GNB) (Pseudomonas, Stenotrophomonas, or Burkholderia spp.); 2) prior S. aureus at least once; or 3) no prior S. aureus but prior NF-GNB at least once. The association between S. aureus isolation and pulmonary function and frequency of exacerbations and hospital admissions was assessed, both at baseline and after 1 year of follow-up. RESULTS: S. aureus was cultured from 94 of 830 patients (11.3%) included in the analysis. Patients who had grown S. aureus before entry into the Registry had a frequency of prior exacerbations and baseline pulmonary function that was between that of patients who had grown NF-GNB and those who had grown neither NF-GNB or S. aureus. Similarly, at the first follow-up visit after study entry, patients who had grown S. aureus had a frequency of exacerbations and hospitalizations that was between those of patients who had grown NF-GNB and those who had grown neither NF-GNB nor S. aureus. However, in multivariate analysis, S. aureus was not associated with pulmonary function, frequency of exacerbation, or hospital admissions. There were no significant differences in patient characteristics or outcomes between patients who had methicillin sensitive and methicillin-resistant S. aureus. CONCLUSIONS: Staphylococcus aureus does not appear to be an independent risk factor for severe disease in patients with bronchiectasis enrolled in the Bronchiectasis Research Registry. PMID- 29345972 TI - Trypsin Inhibitors from Cajanus cajan and Phaseolus limensis Possess Antioxidant, Anti-Inflammatory, and Antibacterial Activity. AB - Protease inhibitors are one of the most promising and investigated subjects for their role in pharmacognostic and pharmacological studies. This study aimed to investigate antioxidant, anti-inflammatory, and antimicrobial activities of trypsin inhibitors (TIs) from two plant sources (Cajanus cajan and Phaseolus limensis). TI was purified from C. cajan (PUSA-992) by ammonium sulfate precipitation followed by ion exchange chromatography. TI from Phaseolus limensis (lima bean trypsin inhibitor; LBTI) was procured from Sigma-Aldrich, St. Louis, Missouri, United States. The antioxidant activity was analyzed by ferric ion reducing antioxidant power (FRAP) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). The anti-inflammatory property of TIs was determined by inhibition of albumin denaturation assay. Ascorbic acid and aspirin were used as standards for antioxidant and anti-inflammatory assays, respectively. These TIs were tested against various bacterial and fungal strains. The TIs showed DPPH radical scavenging activity in a concentration-dependent manner with IC50 values comparable to ascorbic acid. The FRAP values were also observed comparable to ascorbic acid and followed the trend of dose-dependent manner. The half maximal inhibitory concentration (IC50) values of CCTI and LBTI in anti-inflammatory test showed that LBTI is more potent than CCTI. The TIs showed potent antibacterial activity, but apparently no action against fungi. This study has reported the biological properties of CCTI and LBTI for the first time. The results show that TIs possess the ability to inhibit diseases caused by oxidative stress, inflammation, and bacterial infestation. PMID- 29345973 TI - R-Spondin-2 Is Upregulated in Idiopathic Pulmonary Fibrosis and Affects Fibroblast Behavior. AB - Idiopathic pulmonary fibrosis (IPF) is characterized by the expansion of the myofibroblast population, excessive extracellular matrix accumulation, and destruction of the lung parenchyma. The R-spondin family (RSPO) comprises a group of proteins essential for development. Among them, RSPO2 is expressed primarily in the lungs, and its mutations cause severe defects in the respiratory tract. Interestingly, RSPO2 participates in the canonical Wingless/int1 pathway, a critical route in the pathogenesis of IPF. Thus, the aim of this study was to examine the expression and putative role of RSPO2 in this disease. We found that RSPO2 and its receptor leucine-rich G protein-coupled receptor 6 were upregulated in IPF lungs, where they localized primarily in fibroblasts and epithelial cells. Stimulation of IPF and normal lung fibroblasts with recombinant human RSPO2 resulted in the deregulation of numerous genes, although the transcriptional response was essentially distinct. In IPF fibroblasts, RSPO2 stimulation induced the up- or downregulation of several genes involved in the Wingless/int1 pathway (mainly from noncanonical signaling). In both normal and IPF fibroblasts, RSPO2 modifies the expression of genes implicated in several pathways, including the cell cycle and apoptosis. In accordance with gene expression, the stimulation of normal and IPF fibroblasts with RSPO2 significantly reduced cell proliferation and induced cell death. RSPO2 also inhibited collagen production and increased the expression of matrix metalloproteinase 1. Silencing RSPO2 with shRNA induced the opposite effects. Our findings demonstrate, for the first time to our knowledge, that RSPO2 is upregulated in IPF, where it appears to have an antifibrotic role. PMID- 29345974 TI - Cognitive Effects of Cancer and Cancer Treatments. AB - As the population of cancer survivors has grown into the millions, there has been increasing emphasis on understanding how the late effects of treatment affect survivors' ability to return to work/school, their capacity to function and live independently, and their overall quality of life. This review focuses on cognitive change associated with cancer and cancer treatments. Research in this area has progressed from a pharmacotoxicology perspective to a view of the cognitive change as a complex interaction of aspects of the treatment, vulnerability factors that increase risk for posttreatment cognitive decline, cancer biology, and the biology of aging. Methodological advances include the development of (a) measurement approaches that assess more fine-grained subcomponents of cognition based on cognitive neuroscience and (b) advanced statistical approaches. Conceptual issues that arise from this multidimensional perspective are described in relation to future directions, understanding of mechanisms, and development of innovative interventions. PMID- 29345975 TI - Nano- and micro-particles for delivery of catechins: Physical and biological performance. AB - Catechins, present in many fruits and vegetables, have many health benefits, but they are prone to degradation. Nano- and micro-particle systems have been used to stabilise catechins when exposed to adverse environments and to improve their bioavailability after ingestion. This review discusses the inherent properties of various catechins, the design of delivery formulations and the properties of catechin-loaded nano- and micro-particles. The protection afforded to catechins during exposure to harsh environmental conditions and gastrointestinal tract transit is reviewed. The bioavailability and efficacy of encapsulated catechins, as assessed by various in vitro and in vivo conditions, are discussed. Bioavailability based on uptake in the upper gut alone underestimates the bioavailability as polyphenols. The caveats with interpretation of bioavailability based on various tests are discussed, when taking into consideration the pathways of catechin metabolism including the role of the gut microflora. However, taken together, the weight of the evidence suggests that there are potentially improved health benefits with the use of appropriately designed nano- and micro-particles for delivery of catechins. Further systematic studies on the metabolism and physiological effects of encapsulated catechins in vivo and clinical trials are needed to validate the bioefficacy of the encapsulated catechins. PMID- 29345976 TI - Synthetic Biology: Immunotherapy by Design. AB - Cellular immunotherapy holds great promise for the treatment of human disease. Clinical evidence suggests that T cell immunotherapies have the potential to combat cancers that evade traditional immunotherapy. Despite promising results, adverse effects leading to fatalities have left scientists seeking tighter control over these therapies, which is reflected in the growing body of synthetic biology literature focused on developing tightly controlled, context-independent parts. In addition, researchers are adapting these tools for other uses, such as for the treatment of autoimmune disease, HIV infection, and fungal interactions. We review this body of work and devote special attention to approaches that may lend themselves to the development of an "ideal" therapy: one that is safe, efficient, and easy to manufacture. We conclude with a look toward the future of immunotherapy: how synthetic biology can shift the paradigm from the treatment of disease to a focus on wellness and human health as a whole. PMID- 29345978 TI - Research in Rare Disease: From Genomics to Proteomics. AB - Jessica Lacoste from the Donnelly Centre at the University of Toronto was awarded best poster at the annual Society of Biomolecular Imaging and Informatics meeting held in San Diego, September 2017. Her work focuses on characterizing the protein localization of variants involved in rare disease. The current works and future directions of research in rare disease are summarized in the following overview. PMID- 29345979 TI - Machine Learning Enables Live Label-Free Phenotypic Screening in Three Dimensions. AB - There is a large amount of information in brightfield images that was previously inaccessible by using traditional microscopy techniques. This information can now be exploited by using machine-learning approaches for both image segmentation and the classification of objects. We have combined these approaches with a label free assay for growth and differentiation of leukemic colonies, to generate a novel platform for phenotypic drug discovery. Initially, a supervised machine learning algorithm was used to identify in-focus colonies growing in a three dimensional (3D) methylcellulose gel. Once identified, unsupervised clustering and principle component analysis of texture-based phenotypic profiles were applied to group similar phenotypes. In a proof-of-concept study, we successfully identified a novel phenotype induced by a compound that is currently in clinical trials for the treatment of leukemia. We believe that our platform will be of great benefit for the utilization of patient-derived 3D cell culture systems for both drug discovery and diagnostic applications. PMID- 29345977 TI - Targeted and Nontargeted alpha-Particle Therapies. AB - alpha-Particle irradiation of cancerous tissue is increasingly recognized as a potent therapeutic option. We briefly review the physics, radiobiology, and dosimetry of alpha-particle emitters, as well as the distinguishing features that make them unique for radiopharmaceutical therapy. We also review the emerging clinical role of alpha-particle therapy in managing cancer and recent studies on in vitro and preclinical alpha-particle therapy delivered by antibodies, other small molecules, and nanometer-sized particles. In addition to their unique radiopharmaceutical characteristics, the increased availability and improved radiochemistry of alpha-particle radionuclides have contributed to the growing recent interest in alpha-particle radiotherapy. Targeted therapy strategies have presented novel possibilities for the use of alpha-particles in the treatment of cancer. Clinical experience has already demonstrated the safe and effective use of alpha-particle emitters as potent tumor-selective drugs for the treatment of leukemia and metastatic disease. PMID- 29345980 TI - Society of Biomolecular Imaging and Informatics High-Content Screening/High Content Analysis Emerging Technologies in Biological Models, When and Why? PMID- 29345981 TI - Correction to: J Endourol 2017;31:985-990. PMID- 29345982 TI - Development of a Trio of Potential Biomarkers for Cancer Prognosis. PMID- 29345983 TI - No Seat at the Recommendations Table? PMID- 29345984 TI - Development of a Polymerase Chain Reaction/Ligase Detection Reaction Assay for Detection of CYP2C19 Polymorphisms. AB - AIMS: Cytochrome P450 2C19 (CYP2C19) genotypes are associated with differential drug metabolism. The aim of this study was to establish a reliable assay for CYP2C19 genotyping based on a polymerase chain reaction/ligase detection reaction (PCR-LDR). MATERIALS AND METHODS: Specific primers and probes were designed to detect CYP2C19*1, *2, *3, and *17. A control for each allele was prepared and used for performance evaluation. A total of 200 clinical samples were analyzed using the PCR-LDR assay and Sanger sequencing. RESULTS: The detection limit of the PCR-LDR assay was 2 ng/MUL of genomic DNA. Common interfering substances in the blood did not affect the results of the detection. For the clinical samples, the results of the PCR-LDR and the Sanger sequencing were identical. Among the 200 patients, 104 (52%) were wild type (*1/*1), 64 (32%) were *1/*2, 16 (8%) were *1/*3, 8 (4%) were *2/*2, 7 (3.5%) were *2/*3, and 1 (0.5%) was *1/*7. No *3/*3 genotype was detected in these patients. CONCLUSION: This PCR-LDR assay is reliable for the detection of CYP2C19 genotypes in a clinical setting. It will be a useful tool to screen for CYP2C19 loss-of-function alleles in patients before clopidogrel and proton pump inhibitor treatment. PMID- 29345985 TI - CYP3A Activity and Rivaroxaban Serum Concentrations in Russian Patients with Deep Vein Thrombosis. AB - BACKGROUND: Rivaroxaban is metabolized in the liver via CYP3A4, the cytochrome involved in the metabolism of nearly 50% of all medications. Thus, its effective concentration depends on multiple pharmacologic parameters. METHODS: The primary goal of our research was to study the correlation between the CYP3A family activity and the safety and efficacy of anticoagulant therapy with rivaroxaban in patients with deep vein thrombosis (DVT). Thirty one patients with DVT aged 21-83 years, 18 men and 13 women, received rivaroxaban (Xarelto) 30 mg/day for 21 days after diagnosis and 20 mg/day for the follow-up period of 6 months. During the study period, Doppler ultrasound was performed weekly to assess the clot dynamics and recanalization time. RESULTS: We found a direct statistically reliable correlation between CYP3A4 activity and both peak and trough rivaroxaban levels. A correlation was also found between the initial clot length and the time to full recanalization r = 0.764 (0.554-0.883), p < 0.0001. No significant link was found between either the glomerular filtration rate and peak rivaroxaban concentrations or between CYP3A4 activity and the treatment effectiveness parameters. No connection between renal function and rivaroxaban concentration was established in our study, which agrees with the clinical trials data that allow unlimited rivaroxaban use in patients with glomerular filtration rate >30 mL/min. CONCLUSIONS: The direct link between the initial clot length and time to full recanalization that has been found means that patients with more advanced stages of thrombosis need more time to reach recanalization than their counterparts with a less severe condition. PMID- 29345986 TI - Vital Signs: Seismology of Icy Ocean Worlds. AB - Ice-covered ocean worlds possess diverse energy sources and associated mechanisms that are capable of driving significant seismic activity, but to date no measurements of their seismic activity have been obtained. Such investigations could reveal the transport properties and radial structures, with possibilities for locating and characterizing trapped liquids that may host life and yielding critical constraints on redox fluxes and thus on habitability. Modeling efforts have examined seismic sources from tectonic fracturing and impacts. Here, we describe other possible seismic sources, their associations with science questions constraining habitability, and the feasibility of implementing such investigations. We argue, by analogy with the Moon, that detectable seismic activity should occur frequently on tidally flexed ocean worlds. Their ices fracture more easily than rocks and dissipate more tidal energy than the <1 GW of the Moon and Mars. Icy ocean worlds also should create less thermal noise due to their greater distance and consequently smaller diurnal temperature variations. They also lack substantial atmospheres (except in the case of Titan) that would create additional noise. Thus, seismic experiments could be less complex and less susceptible to noise than prior or planned planetary seismology investigations of the Moon or Mars. Key Words: Seismology-Redox-Ocean worlds-Europa-Ice Hydrothermal. Astrobiology 18, 37-53. PMID- 29345987 TI - Habitable Worlds: Delivering on the Promises of Online Education. AB - Critical thinking and scientific reasoning are central to higher education in the United States, but many courses (in-person and online) teach students information about science much more than they teach the actual process of science and its associated knowledge and skills. In the online arena specifically, the tools available for course construction exacerbate this problem by making it difficult to build the types of active learning activities that research shows to be the most effective. Here, we present a report on Habitable Worlds, offered by Arizona State University for 12 semesters over the past 6 years. This is a unique online course that uses an array of novel technologies to deliver an active, inquiry driven learning experience. Learning outcomes and quantitative data from more than 3000 students demonstrate the success of our approach but also identify several remaining challenges. The design and development of this course offers valuable lessons for instructional designers and educators who are interested in fully capitalizing on the capabilities of 21st-century technology to achieve educational goals. Key Words: Online education-Active learning-SETI-Astrobiology Teaching. Astrobiology 17, 86-99. PMID- 29345988 TI - Measuring Entropy in Molecular Recognition by Proteins. AB - Molecular recognition by proteins is fundamental to the molecular basis of biology. Dissection of the thermodynamic landscape governing protein-ligand interactions has proven difficult because determination of various entropic contributions is quite challenging. Nuclear magnetic resonance relaxation measurements, theory, and simulations suggest that conformational entropy can be accessed through a dynamical proxy. Here, we review the relationship between measures of fast side-chain motion and the underlying conformational entropy. The dynamical proxy reveals that the contribution of conformational entropy can range from highly favorable to highly unfavorable and demonstrates the potential of this key thermodynamic variable to modulate protein-ligand interactions. The dynamical so-called entropy meter also refines the role of solvent entropy and directly determines the loss in rotational-translational entropy that occurs upon formation of high-affinity complexes. The ability to quantify the roles of entropy through an entropy meter based on measurable dynamical properties promises to highlight its role in protein function. PMID- 29345989 TI - Assembly of COPI and COPII Vesicular Coat Proteins on Membranes. AB - In eukaryotes, distinct transport vesicles functionally connect various intracellular compartments. These carriers mediate transport of membranes for the biogenesis and maintenance of organelles, secretion of cargo proteins and peptides, and uptake of cargo into the cell. Transport vesicles have distinct protein coats that assemble on a donor membrane where they can select cargo and curve the membrane to form a bud. A multitude of structural elements of coat proteins have been solved by X-ray crystallography. More recently, the architectures of the COPI and COPII coats were elucidated in context with their membrane by cryo-electron tomography. Here, we describe insights gained from the structures of these two coat lattices and discuss the resulting functional implications. PMID- 29345990 TI - Imaging mRNA In Vivo, from Birth to Death. AB - RNA is the fundamental information transfer system in the cell. The ability to follow single messenger RNAs (mRNAs) from transcription to degradation with fluorescent probes gives quantitative information about how the information is transferred from DNA to proteins. This review focuses on the latest technological developments in the field of single-mRNA detection and their usage to study gene expression in both fixed and live cells. By describing the application of these imaging tools, we follow the journey of mRNA from transcription to decay in single cells, with single-molecule resolution. We review current theoretical models for describing transcription and translation that were generated by single molecule and single-cell studies. These methods provide a basis to study how single-molecule interactions generate phenotypes, fundamentally changing our understating of gene expression regulation. PMID- 29345991 TI - Collapse Transitions of Proteins and the Interplay Among Backbone, Sidechain, and Solvent Interactions. AB - Proteins can collapse into compact globules or form expanded, solvent-accessible, coil-like conformations. Additionally, they can fold into well-defined three dimensional structures or remain partially or entirely disordered. Recent discoveries have shown that the tendency for proteins to collapse or remain expanded is not intrinsically coupled to their ability to fold. These observations suggest that proteins do not have to form compact globules in aqueous solutions. They can be intrinsically disordered, collapsed, or expanded, and even form well-folded, elongated structures. This ability to decouple collapse from folding is determined by the sequence details of proteins. In this review, we highlight insights gleaned from studies over the past decade. Using a polymer physics framework, we explain how the interplay among sidechains, backbone units, and solvent determines the driving forces for collapsed versus expanded states in aqueous solvents. Expected final online publication date for the Annual Review of Biophysics Volume 47 is May 20, 2018. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates. PMID- 29345992 TI - The Effect of Patient Navigation on the Likelihood of Engagement in Clinical Care for HIV-Infected Individuals Leaving Jail. AB - OBJECTIVES: To compare the effectiveness of patient navigation-enhanced case management in supporting engagement in HIV care upon release from jail relative to existing services. METHODS: We randomized 270 HIV-infected individuals to receive navigation-enhanced case management for 12 months or standard case management for 90 days following release from jail between 2010 and 2013. Participants were interviewed at 2, 6, and 12 months after release. We abstracted medical data from jail and city health records. RESULTS: Patient navigation enhanced case management resulted in greater linkage to care within 30 days of release (odds ratio [OR] = 2.15; 95% confidence interval [CI] = 1.23, 3.75) and consistent retention over 12 months (OR = 1.95; 95% CI = 1.11, 3.46). Receipt of treatment for substance use disorders in jail also resulted in early linkage (OR = 4.06; 95% CI = 1.93, 8.53) and retention (OR = 2.52; 95% CI = 1.21, 5.23). Latinos were less likely to be linked to (OR = 0.35; 95% CI = 0.14, 0.91) or retained in (OR = 0.28; 95% CI = 0.09, 0.82) HIV care. CONCLUSIONS: Patient navigation supports maintaining engagement in care and can mitigate health disparities, and should become the standard of care for HIV-infected individuals leaving jail. PMID- 29345993 TI - Socioeconomic Outcomes of Women Who Receive and Women Who Are Denied Wanted Abortions in the United States. AB - OBJECTIVES: To determine the socioeconomic consequences of receipt versus denial of abortion. METHODS: Women who presented for abortion just before or after the gestational age limit of 30 abortion facilities across the United States between 2008 and 2010 were recruited and followed for 5 years via semiannual telephone interviews. Using mixed effects models, we evaluated socioeconomic outcomes for 813 women by receipt or denial of abortion care. RESULTS: In analyses that adjusted for the few baseline differences, women denied abortions who gave birth had higher odds of poverty 6 months after denial (adjusted odds ratio [AOR] = 3.77; P < .001) than did women who received abortions; women denied abortions were also more likely to be in poverty for 4 years after denial of abortion. Six months after denial of abortion, women were less likely to be employed full time (AOR = 0.37; P = .001) and were more likely to receive public assistance (AOR = 6.26; P < .001) than were women who obtained abortions, differences that remained significant for 4 years. CONCLUSIONS: Women denied an abortion were more likely than were women who received an abortion to experience economic hardship and insecurity lasting years. Laws that restrict access to abortion may result in worsened economic outcomes for women. PMID- 29345994 TI - Work as an Inclusive Part of Population Health Inequities Research and Prevention. AB - Despite its inclusion in models of social and ecological determinants of health, work has not been explored in most health inequity research in the United States. Leaving work out of public health inequities research creates a blind spot in our understanding of how inequities are created and impedes our progress toward health equity. We first describe why work is vital to our understanding of observed societal-level health inequities. Next, we outline challenges to incorporating work in the study of health inequities, including (1) the complexity of work as a concept; (2) work's overlap with socioeconomic position, race, ethnicity, and gender; (3) the development of a parallel line of inquiry into occupational health inequities; and (4) the dearth of precise data with which to explore the relationships between work and health status. Finally, we summarize opportunities for advancing health equity and monitoring progress that could be achieved if researchers and practitioners more robustly include work in their efforts to understand and address health inequities. PMID- 29345995 TI - The Effects of Household Medical Expenditures on Income Inequality in the United States. AB - OBJECTIVES: To assess the effect of households' outlays for medical expenditures on income inequality and changes since the implementation of the Affordable Care Act (ACA). METHODS: We analyzed data from the US Current Population Surveys for calendar years 2010 through 2014. We calculated the Gini index of income inequality before and after subtracting households' medical outlays (including insurance premiums and out-of-pocket costs) from income, the financial burden of medical outlays for each income decile, and the number of individuals pushed below poverty by medical outlays. RESULTS: In 2014, the Gini index was 47.84, which rose to 49.21 after medical outlays were subtracted, indicating that medical outlays effectively redistributed about 1.37% of total income from poorer to richer individuals, a slightly smaller redistribution compared with the years before the ACA. Medical outlays reduced the median income of the poorest decile by 47.6% versus 2.7% for the wealthiest decile and pushed 7.013 million individuals into poverty. CONCLUSIONS: The way we finance medical care exacerbates income inequality and impoverishes millions of Americans. This regressive financing pattern improved minimally in the wake of the ACA. PMID- 29345996 TI - Delays in Global Disease Outbreak Responses: Lessons from H1N1, Ebola, and Zika. AB - In global disease outbreaks, there are significant time delays between the source of an outbreak and collective action. Some delay is necessary, but recent delays have been extended by insufficient surveillance capacity and time-consuming efforts to mobilize action. Three public health emergencies of international concern (PHEICs)-H1N1, Ebola, and Zika-allow us to identify and compare sources of delays and consider seven hypotheses about what influences the length of delays. These hypotheses can then motivate further research that empirically tests them. The three PHEICs suggest that deferred global mobilization is a greater source of delay than is poor surveillance capacity. These case study outbreaks support hypotheses that we see quicker responses for novel diseases when outbreaks do not coincide with holidays and when US citizens are infected. They do not support hypotheses that we see quicker responses for more severe outbreaks or those that threaten larger numbers of people. Better understanding the reason for delays can help target policy interventions and identify the kind of global institutional changes needed to reduce the spread and severity of future PHEICs. PMID- 29345997 TI - Trends in Health Insurance and Type Among Military Veterans: United States, 2000 2016. AB - OBJECTIVES: To describe long-term national trends in health insurance coverage among US veterans from 2000 to 2016 in the context of recent health care reform. METHODS: We used 2000 to 2016 National Health Interview Survey data on veterans aged 18 to 64 years to examine trends in insurance coverage and uninsurance by year, income, and state Medicaid expansion status. We also explored the current proportions of veterans with each type of insurance by age group. RESULTS: The percentage of veterans with private insurance decreased from 70.8% in 2000 to 56.9% in 2011, whereas between 2000 and 2016 Department of Veterans Affairs (VA) health care coverage (only) almost tripled, Medicaid (without concurrent TRICARE or private coverage) doubled, and TRICARE coverage of any type tripled. After 2011, the percentage of veterans who were uninsured decreased. In 2016, low income veterans in Medicaid expansion states had double the Medicaid coverage (41.1%) of low-income veterans in nonexpansion states (20.1%). CONCLUSIONS: Our estimates, which are nationally representative of noninstitutionalized veterans, show marked increases in military-related coverage through TRICARE and VA health care. In 2016, only 7.2% of veterans aged 18 to 64 years and 3.7% of all veterans (aged 18 years or older) remained uninsured. PMID- 29345998 TI - Key Factors Inhibiting Legislative Progress Toward Smoke-Free Coverage in Appalachia. AB - The Appalachian Region has among the highest rates of smoking and smoking-related illness in the United States. Strong smoke-free legislation could help protect nonsmoking residents from the harmful effects of secondhand smoke. However, there is a dearth of state, county, city, and subcounty smoke-free law coverage throughout Appalachia. As of July 2016, only 21% of Appalachian residents were covered by comprehensive smoke-free laws (i.e., 100% coverage for workplaces, restaurants, and bars). Only 46% of Appalachians lived in places with 100% smoke free workplace laws, only 30% lived in places with 100% smoke-free restaurant laws, and only 29% lived in places with 100% smoke-free bar laws. Reasons for this lack of smoke-free law coverage include socioeconomic disadvantage, the historical importance of tobacco in Appalachian economies, and preemptive state legislation. By understanding the contextual issues that have inhibited smoke free legislation, smoke-free advocates will be better prepared to lead efforts that expand smoke-free coverage in this region. PMID- 29345999 TI - Cost-Effectiveness of Capping Freeways for Use as Parks: The New York Cross-Bronx Expressway Case Study. AB - OBJECTIVES: To examine health benefits and cost-effectiveness of implementing a freeway deck park to increase urban green space. METHODS: Using the Cross-Bronx Expressway in New York City as a case study, we explored the cost-effectiveness of implementing deck parks. We built a microsimulation model that included increased exercise, fewer accidents, and less pollution as well as the cost of implementation and maintenance of the park. We estimated both the quality adjusted life years gained and the societal costs for 2017. RESULTS: Implementation of a deck park over sunken parts of Cross-Bronx Expressway appeared to save both lives and money. Savings were realized for 84% of Monte Carlo simulations. CONCLUSIONS: In a rapidly urbanizing world, reclaiming green space through deck parks can bring health benefits alongside economic savings over the long term. Public Health Implications. Policymakers are seeking ways to create cross-sectorial synergies that might improve both quality of urban life and health. However, such projects are very expensive, and there is little information on their return of investment. Our analysis showed that deck parks produce exceptional value when implemented over below-grade sections of road. PMID- 29346000 TI - Preventable Emergency Department Visits for Nontraumatic Dental Conditions: Trends and Disparities in Nevada, 2009-2015. AB - OBJECTIVES: To examine trends and socioeconomic disparities for preventable dental-related emergency department (ED) visits in Nevada. METHODS: We pooled retrospective data containing 66 267 ED visits involving dental conditions from Nevada hospital ED databases from 2009 to 2015. The dependent variable was nontraumatic dental conditions identified by International Classification of Diseases, Ninth Revision, codes; 3 independent variables included treatment year, health insurance status, and race/ethnicity. RESULTS: Odds of ED visits for nontraumatic dental conditions increased 16% annually from 2009 to 2015 (odds ratio [OR] = 1.16; 95% confidence interval [CI] = 1.13, 1.19). Medicaid (OR = 2.16; 95% CI = 1.96, 2.39) and uninsured patients (OR = 2.75; 95% CI = 2.52, 3.00) presenting with nontraumatic dental conditions were 1 to 2 times more likely than those with private dental insurance to seek ED treatment. Black patients were more likely than White patients to seek ED treatment (OR = 1.13; 95% CI = 1.02, 1.24). CONCLUSIONS: Socioeconomic and demographic factors were significantly associated with ED visits for nontraumatic dental conditions, with a steady increase in trends and a widening of socioeconomic disparities in recent years. PMID- 29346001 TI - Strategies and Challenges in Preventing Violence Against Canadian Indoor Sex Workers. AB - OBJECTIVES: To examine indoor sex workers' strategies in preventing workplace violence and influential socio-structural conditions. METHODS: Data included qualitative interviews with 85 sex workers in British Columbia, Canada, from 2014 through 2016. For analyses, we used interpretive thematic techniques informed by World Health Organization position statements on violence. RESULTS: Robbery, nonpayment, financial exploitation, and privacy violations were frequent types of violence perpetrated by clients, landlords, and neighbors. We identified 2 themes that depicted how sex workers prevented violence and mitigated its effects: (1) navigating physical spaces and (2) navigating client relationships. CONCLUSIONS: Sex workers' diverse strategies to prevent violence and mitigate its effects are creative and effective in many circumstances. These are limited, however, by the absence of legal and public health regulations governing occupational health and safety and stigma associated with sex work. Public Health Implications. Occupational health and safety regulatory policies that set conditions for clients' substance and condom use within commercial sex transactions are required. Revisions to the current legal regulations governing prostitution are critical to support optimal work environments that reduce the likelihood of violence. These revisions must recognize sex work as a form of labor versus victimization. PMID- 29346003 TI - Medicaid Expansion and Infant Mortality in the United States. AB - OBJECTIVES: To explore the effect of Medicaid expansion on US infant mortality rate. METHODS: We examined data from 2010 to 2016 and 2014 to 2016 to compare infant mortality rates in states and Washington, DC, that accepted the Affordable Care Act Medicaid expansion (Medicaid expansion states) and states that did not (non-Medicaid expansion states), stratifying data by race/ethnicity. RESULTS: Mean infant mortality rate in non-Medicaid expansion states rose (6.4 to 6.5) from 2014 to 2016 but declined in Medicaid expansion states (5.9 to 5.6). Mean difference in infant mortality rate in Medicaid expansion versus non-Medicaid expansion states increased from 0.573 (P = .08) in 2014 to 0.838 in 2016 (P = .006) because of smaller declines in non-Medicaid expansion (11.0%) than in Medicaid expansion (15.2%) states. The 14.5% infant mortality rate decline from 11.7 to 10.0 in African American infants in Medicaid expansion states was more than twice that in non-Medicaid expansion states (6.6%: 12.2 to 11.4; P = .012). CONCLUSIONS: Infant mortality rate decline was greater in Medicaid expansion states, with greater declines among African American infants. Future research should explore what aspects of Medicaid expansion may improve infant survival. PMID- 29346002 TI - Intermittent Preventive Therapy in Pregnancy and Incidence of Low Birth Weight in Malaria-Endemic Countries. AB - OBJECTIVES: To estimate the impact of hypothetical antimalarial and nutritional interventions (which reduce the prevalence of low midupper arm circumference [MUAC]) on the incidence of low birth weight (LBW). METHODS: We analyzed data from 14 633 pregnancies from 13 studies conducted across Africa and the Western Pacific from 1996 to 2015. We calculated population intervention effects for increasing intermittent preventive therapy in pregnancy (IPTp), full coverage with bed nets, reduction in malaria infection at delivery, and reductions in the prevalence of low MUAC. RESULTS: We estimated that, compared with observed IPTp use, administering 3 or more doses of IPTp to all women would decrease the incidence of LBW from 9.9% to 6.9% (risk difference = 3.0%; 95% confidence interval = 1.7%, 4.0%). The intervention effects for eliminating malaria at delivery, increasing bed net ownership, and decreasing low MUAC prevalence were all modest. CONCLUSIONS: Increasing IPTp uptake to at least 3 doses could decrease the incidence of LBW in malaria-endemic countries. The impact of IPTp on LBW was greater than the effect of prevention of malaria, consistent with a nonmalarial effect of IPTp, measurement error, or selection bias. PMID- 29346004 TI - Universal Lead Screening Requirement: A California Case Study. AB - OBJECTIVES: To estimate potential impacts of California Assembly Bill (AB) 1316: a requirement for universal screening and insurance coverage for child blood lead testing. METHODS: In April 2017 the California Health Benefits Review Program (Oakland, CA) analyzed AB 1316 for the California legislature, including a systematic review of lead screening effectiveness, commercial insurer surveys regarding screening coverage, and actuarial utilization and cost implication assessments. RESULTS: Universal screening requirements would increase child lead testing by 273%, raise affected populations' premiums by 0.0043%, and detect an additional 4777 exposed children 1 year after implementation. CONCLUSIONS: The evidence for a net societal benefit of universal screening approach is limited and is not supported by prominent medical professional groups. Public Health Implications. California expanded targeted screening to identify additional children at higher risk for lead poisoning on the basis of California-specific risk factors, while mitigating the potential harms of universal screening such as an increase in false positive tests and health care costs. PMID- 29346005 TI - Ethical Issues in Social Media Research for Public Health. AB - Social media (SM) offer huge potential for public health research, serving as a vehicle for surveillance, delivery of health interventions, recruitment to trials, collection of data, and dissemination. However, the networked nature of the data means they are riddled with ethical challenges, and no clear consensus has emerged as to the ethical handling of such data. This article outlines the key ethical concerns for public health researchers using SM and discusses how these concerns might best be addressed. Key issues discussed include privacy; anonymity and confidentiality; authenticity; the rapidly changing SM environment; informed consent; recruitment, voluntary participation, and sampling; minimizing harm; and data security and management. Despite the obvious need, producing a set of prescriptive guidelines for researchers using SM is difficult because the field is evolving quickly. What is clear, however, is that the ethical issues connected to SM-related public health research are also growing. Most importantly, public health researchers must work within the ethical principles set out by the Declaration of Helsinki that protect individual users first and foremost. PMID- 29346006 TI - Public Health Education: Teaching Epidemiology in High School Classrooms. AB - Epidemiology instruction has expanded at the undergraduate level in part because it increases student critical thinking and scientific literacy, promotes students' perception of public health as both practical and relevant, and empowers students as independent, lifelong learners. Why then are more high schools not adopting epidemiology as a course requirement for students? Although prior iterations of high school epidemiology courses are noteworthy for incorporating active and participatory learning, embedding them into existing and continually shifting curricula is challenging and time-consuming, especially for teachers not trained in the field. It also may be argued that currently available epidemiology teaching resources emphasize content rather than thinking skills and therefore do not optimally promote students' personal engagement with, and in depth understanding of, the mission and goals of public health. I propose a new framework for high school epidemiology that draws from progressive education ideology, including three critical elements: empowerment, authenticity, and transfer. I provide multiple examples to show how this framework has been used across a wide array of settings to hone epidemiology thinking skills in high school students. PMID- 29346007 TI - The Rise and Fall of "Universal Health Coverage" as a Goal of International Health Politics, 1925-1952. AB - The UN Sustainable Development Goals of 2015 have restored universal health coverage (UHC) to prominence in the international health agenda. Can understanding the past illuminate the prospects for UHC in the present? This article traces an earlier history of UHC as an objective of international health politics. Its focus is the efforts of the International Labor Organization (ILO), whose Philadelphia Declaration (1944) announced the goal of universal social security, including medical coverage and care. After World War II, the ILO attempted to enshrine this in an international convention, which nation states would ratify. However, by 1952 these efforts had failed, and the final convention was so diluted that universalism was unobtainable. Our analysis first explains the consolidation of ideas about social security and health care, tracing transnational policy linkages among experts whose world view transcended narrow loyalties. We then show how UHC goals became marginalized, through the opposition of employers and organized medicine, and of certain nation states, both rich and poor. We conclude with reflections on how these findings might help us in thinking about the challenges of advancing UHC today. PMID- 29346008 TI - Follow-Up Care Provider Preferences of Adolescent and Young Adult Cancer Survivors. AB - PURPOSE: To explore the experiences and perspectives of adolescent and young adult (AYA) cancer survivors regarding patient-provider relationships and their preferences surrounding type of healthcare provider for follow-up care. METHODS: We recruited AYA cancer survivors who were diagnosed between the ages of 15 and 39 using the Utah Cancer Registry. Twenty-eight survivors participated in six focus groups held between March and May of 2015 in Salt Lake City and St. George, Utah. This analysis focuses on how survivors' preferences about type of healthcare provider may influence their transition into, and utilization of, follow-up care. RESULTS: On average, survivors were 6.3 (standard deviation = 1.7) years from their cancer diagnosis. A majority of survivors expressed a desire not to transition to a new provider and preferred continuing to see their oncologist for follow-up care. For these survivors, this was due to already having a close relationship with their oncologist and because they trusted their provider's knowledge about cancer and how to handle late effects. However, survivors placed emphasis on being comfortable with their healthcare provider, regardless of provider type. CONCLUSIONS: Our findings demonstrate the importance of formalizing provider transitions and roles after cancer therapy to improve patient comfort with new providers. By understanding the complexities of the transition from active cancer treatment to follow-up care for AYA survivors, these findings can inform programs undertaking post-care educational activities to ensure a seamless transition into survivorship care. Survivorship care plans can facilitate these transitions and improve patient confidence in follow-up care. PMID- 29346009 TI - Automation on an Open-Access Platform of Alzheimer's Disease Biomarker Immunoassays. AB - The lack of (inter-)laboratory standardization has hampered the application of universal cutoff values for Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers and their transfer to general clinical practice. The automation of the AD biomarker immunoassays is suggested to generate more robust results than using manual testing. Open-access platforms will facilitate the integration of automation for novel biomarkers, allowing the introduction of the protein profiling concept. A feasibility study was performed on an automated open-access platform of the commercial immunoassays for the 42-amino-acid isoform of amyloid beta (Abeta1-42), Abeta1-40, and total tau in CSF. Automated Abeta1-42, Abeta1 40, and tau immunoassays were performed within predefined acceptance criteria for bias and imprecision. Similar accuracy was obtained for ready-to-use calibrators as for reconstituted lyophilized kit calibrators. When compared with the addition of a standard curve in each test run, the use of a master calibrator curve, determined before and applied to each batch analysis as the standard curve, yielded an acceptable overall bias of -2.6% and -0.9% for Abeta1-42 and Abeta1 40, respectively, with an imprecision profile of 6.2% and 8.4%, respectively. Our findings show that transfer of commercial manual immunoassays to fully automated open-access platforms is feasible, as it performs according to universal acceptance criteria. PMID- 29346010 TI - Identification and Correction of Additive and Multiplicative Spatial Biases in Experimental High-Throughput Screening. AB - Data generated by high-throughput screening (HTS) technologies are prone to spatial bias. Traditionally, bias correction methods used in HTS assume either a simple additive or, more recently, a simple multiplicative spatial bias model. These models do not, however, always provide an accurate correction of measurements in wells located at the intersection of rows and columns affected by spatial bias. The measurements in these wells depend on the nature of interaction between the involved biases. Here, we propose two novel additive and two novel multiplicative spatial bias models accounting for different types of bias interactions. We describe a statistical procedure that allows for detecting and removing different types of additive and multiplicative spatial biases from multiwell plates. We show how this procedure can be applied by analyzing data generated by the four HTS technologies (homogeneous, microorganism, cell-based, and gene expression HTS), the three high-content screening (HCS) technologies (area, intensity, and cell-count HCS), and the only small-molecule microarray technology available in the ChemBank small-molecule screening database. The proposed methods are included in the AssayCorrector program, implemented in R, and available on CRAN. PMID- 29346011 TI - Minimally Invasive Management of Severe Aortoiliac Occlusive Disease. AB - BACKGROUND: Peripheral arterial disease (PAD) is a complex and highly prevalent pathology. It has been estimated that ~8.5 million people in the United States are affected by PAD, of which 12%-20% are older than age 60. The TransAtlantic Inter-Society Consensus (TASC) guidelines classified aortoiliac atherosclerotic disease based on morphology and level of lesions. TASC II guidelines recommend bilateral surgical bypass to the femoral arteries for TASC II C and D lesions. The aortobifemoral bypass (ABF) has been considered the gold standard in the treatment of aortoiliac occlusive disease (AIOD). The long-term patency rate of 85%-90% at 5 years and 75%-80% at 10 years has been for a long time unmatched by other methods of revascularization. METHODS: This is a review of the current literature regarding minimally invasive strategies in the care of TASC II C and D aortoiliac disease. RESULTS: Endovascular therapies have led to a paradigm change even in the treatment of highly advanced lesions. Reconstruction of the aortic bifurcation for distal aortic and/or ostial unilateral/bilateral common iliac artery disease can be achieved via the deployment of stents with "kissing" technique and aortic endografts. Laparoscopic aortoiliac surgery for TASC II C and D lesions was first proposed in 1993. Total laparoscopic, laparoscopic assisted, and laparobotic techniques have been described. Minimal incision aortic surgery (MIAS) describes abdominal incisions varying from 6 to 12 cm and positional adjustment of retractors to access the retroperitoneum for infrarenal aortic aneurysms and/or AIOD. CONCLUSIONS: Although initial enthusiasm laparoscopic aortic surgery and MIAS have failed to gain acceptance in the vascular surgery community due to intrinsic procedural challenges, they are currently practiced in few highly specialized centers. At this moment, high quality evidence is lacking regarding the further feasibility of these techniques and their applicability in general practice compared to endovascular therapies. While the ABF remains still the optimal choice in select, fit for surgery patients, endovascular therapies offer a less invasive approach that may provide a mortality and morbidity benefit in higher risk patients with acceptable short- and long-term outcomes. PMID- 29346012 TI - The Combination of Probiotic Complex, Rosavin, and Zinc Improves Pain and Cartilage Destruction in an Osteoarthritis Rat Model. AB - Osteoarthritis (OA), a degenerative disorder, induces pain, joint inflammation, and destruction of the articular cartilage matrix. Probiotic complex, rosavin, and zinc have been used as dietary supplements that exhibit anti-inflammatory and antioxidant properties. However, there is no evidence demonstrating a synergic effect in OA. This study aims to determine whether combination with probiotic complex, rosavin, and zinc decreases progression of monosodium iodoacetate (MIA) induced OA rat model. The combination improved pain levels by preventing cartilage damage. The expression of proinflammatory cytokines and catabolic factors was reduced by the combination within the joint tissue. However, the combination increased anti-inflammatory cytokines as well as the anabolic factor production. The gene level of catabolic factors was decreased with treatment of the combination in chondrocytes isolated from OA patients. These results suggest that the combination can improve MIA development through the inhibition of proinflammatory cytokines and cartilage destruction, thus playing a key role as a therapeutic candidate for OA treatment. PMID- 29346013 TI - Purification of Lymphocytes by Acoustic Separation in Plastic Microchannels. AB - Emerging cell therapies have created new demands for instruments that will increase processing efficiency. Purification of lymphocytes prior to downstream steps of gene transfer currently relies on centrifugal separation, which has drawbacks in output sample purity and process automation. Here, we present an alternative approach to blood cell purification using acoustic forces in plastic microchannels. We provide details regarding the system's ability to purify lymphocytes relative to other blood cell types while maintaining a high overall recovery, testing performance starting from leukapheresis product, buffy coat, and whole blood. Depending on settings, the device achieves for lymphocytes up to 97% purity and up to 68% recovery, and depletes 98% of monocytes while also reducing red cells and platelets. We expect that future scale-up of our system for increased throughput will enable its incorporation in the cell therapy workflow, and that it could ultimately reduce costs and expand access for patients. PMID- 29346014 TI - Role of the Lymphatic System in the Pathogenesis of Hypertension in Humans. AB - BACKGROUND: Recent studies, mainly on animal models, have suggested that negatively charged glycosaminoglycans, macrophages, and lymph vessels in the skin interstitium may serve as extrarenal control of sodium balance and blood pressure. The aim of the study was to prove the hypothesis that skin interstitium has a role in the pathogenesis of hypertension in humans. METHODS AND RESULTS: We have examined skin biopsies in 91 patients from the department of surgery who had elective surgery with abdominal skin incision: 43 were hypertensive, 14 had resistant hypertension, and 34 with normal blood pressure as control group (median patients' age in these groups estimated accordingly 64 vs. 64 vs. 61.5; p > 0.05). We have studied (1) the content of Na+, water, accumulation of macrophages (CD68), and density of lymphatic vessels (D2-40) and blood vessels (CD31) in the specimens of abdominal skin taken at the time of surgery and (2) plasma NT-proANP, vascular endothelial growth factor (VEGF)-C, and VEGF-D concentrations. The study groups differed in skin expression of CD68 (control vs. hypertension vs. resistant hypertension groups were accordingly: 3.33 vs. 4.00 vs. 8.33; p = 0.005) and in serum concentration of VEGF-C (5792 vs. 4348 vs. 3974 pg/mL; p = 0.026). Differences among groups in plasma NT-proANP levels were close to statistical significance (p = 0.056). CONCLUSIONS: Our results confirm that skin interstitium may be involved in the pathogenesis of essential hypertension in humans. Lower levels of VEGF-C in hypertensive groups suggest that impairment of lymphangiogenesis and protective function of the skin lymphatic system may play a role in the pathogenesis of hypertension. PMID- 29346015 TI - Treatment of a textile effluent by adsorption with cork granules and titanium dioxide nanomaterial. AB - This study aimed to explore the efficiency of two adsorbents, cork granules with different granulometry and titanium dioxide nanomaterial, in the removal of chemical oxygen demand (COD), colour and toxicity from a textile effluent. The adsorption assays with cork were unsatisfactory in the removal of chemical parameters however they eliminated the acute toxicity of the raw effluent to Daphnia magna. The assay with TiO2 NM did not prove to be efficient in the removal of colour and COD even after 240 min of contact; nevertheless it also reduced the raw effluent toxicity. The best approach for complete remediation of the textile effluent has not yet been found however promising findings were achieved, which may be an asset in future adsorption assays. PMID- 29346016 TI - In situ electrochemical manipulation of oxidation-reduction potential in saturated subsurface matrices. AB - Application of a low-intensity electric field is known to influence oxidation reduction (redox) potential in a saturated matrix. In this study, such redox manipulation was attempted in at a site with contaminated aquifer. At the experiment field site, electrodes connected to a direct current (DC) source provided an electric field with an intensity of 1.82 V m-1. Redox potentials at locations 3.0 m and 7.9 m from the cathode decreased by 111 mV and 33 mV within a few hours, respectively, indicating that reducing conditions in the aquifer may be established within the electric field. Overall, it is possible to manipulate in situ redox potential in saturated subsurface matrices by applying low intensity electric fields. PMID- 29346017 TI - The Role of Posterior Parietal Cortex in Beat-based Timing Perception: A Continuous Theta Burst Stimulation Study. AB - There is growing interest in how the brain's motor systems contribute to the perception of musical rhythms. The Action Simulation for Auditory Prediction hypothesis proposes that the dorsal auditory stream is involved in bidirectional interchange between auditory perception and beat-based prediction in motor planning structures via parietal cortex [Patel, A. D., & Iversen, J. R. The evolutionary neuroscience of musical beat perception: The Action Simulation for Auditory Prediction (ASAP) hypothesis. Frontiers in Systems Neuroscience, 8, 57, 2014]. We used a TMS protocol, continuous theta burst stimulation (cTBS), that is known to down-regulate cortical activity for up to 60 min following stimulation to test for causal contributions to beat-based timing perception. cTBS target areas included the left posterior parietal cortex (lPPC), which is part of the dorsal auditory stream, and the left SMA (lSMA). We hypothesized that down regulating lPPC would interfere with accurate beat-based perception by disrupting the dorsal auditory stream. We hypothesized that we would induce no interference to absolute timing ability. We predicted that down-regulating lSMA, which is not part of the dorsal auditory stream but has been implicated in internally timed movements, would also interfere with accurate beat-based timing perception. We show ( n = 25) that cTBS down-regulation of lPPC does interfere with beat-based timing ability, but only the ability to detect shifts in beat phase, not changes in tempo. Down-regulation of lSMA, in contrast, did not interfere with beat-based timing. As expected, absolute interval timing ability was not impacted by the down-regulation of lPPC or lSMA. These results support that the dorsal auditory stream plays an essential role in accurate phase perception in beat-based timing. We find no evidence of an essential role of parietal cortex or SMA in interval timing. PMID- 29346018 TI - The Tortoise and the Hare: Interactions between Reinforcement Learning and Working Memory. AB - Learning to make rewarding choices in response to stimuli depends on a slow but steady process, reinforcement learning, and a fast and flexible, but capacity limited process, working memory. Using both systems in parallel, with their contributions weighted based on performance, should allow us to leverage the best of each system: rapid early learning, supplemented by long-term robust acquisition. However, this assumes that using one process does not interfere with the other. We use computational modeling to investigate the interactions between the two processes in a behavioral experiment and show that working memory interferes with reinforcement learning. Previous research showed that neural representations of reward prediction errors, a key marker of reinforcement learning, were blunted when working memory was used for learning. We thus predicted that arbitrating in favor of working memory to learn faster in simple problems would weaken the reinforcement learning process. We tested this by measuring performance in a delayed testing phase where the use of working memory was impossible, and thus participant choices depended on reinforcement learning. Counterintuitively, but confirming our predictions, we observed that associations learned most easily were retained worse than associations learned slower: Using working memory to learn quickly came at the cost of long-term retention. Computational modeling confirmed that this could only be accounted for by working memory interference in reinforcement learning computations. These results further our understanding of how multiple systems contribute in parallel to human learning and may have important applications for education and computational psychiatry. PMID- 29346019 TI - Independent Attention Mechanisms Control the Activation of Tactile and Visual Working Memory Representations. AB - Working memory (WM) is limited in capacity, but it is controversial whether these capacity limitations are domain-general or are generated independently within separate modality-specific memory systems. These alternative accounts were tested in bimodal visual/tactile WM tasks. In Experiment 1, participants memorized the locations of simultaneously presented task-relevant visual and tactile stimuli. Visual and tactile WM load was manipulated independently (one, two, or three items per modality), and one modality was unpredictably tested after each trial. To track the activation of visual and tactile WM representations during the retention interval, the visual contralateral delay activity (CDA) and tactile CDA (tCDA) were measured over visual and somatosensory cortex, respectively. CDA and tCDA amplitudes were selectively affected by WM load in the corresponding (tactile or visual) modality. The CDA parametrically increased when visual load increased from one to two and to three items. The tCDA was enhanced when tactile load increased from one to two items and showed no further enhancement for three tactile items. Critically, these load effects were strictly modality-specific, as substantiated by Bayesian statistics. Increasing tactile load did not affect the visual CDA, and increasing visual load did not modulate the tCDA. Task performance at memory test was also unaffected by WM load in the other (untested) modality. This was confirmed in a second behavioral experiment where tactile and visual loads were either two or four items, unimodal baseline conditions were included, and participants performed a color change detection task in the visual modality. These results show that WM capacity is not limited by a domain-general mechanism that operates across sensory modalities. They suggest instead that WM storage is mediated by distributed modality-specific control mechanisms that are activated independently and in parallel during multisensory WM. PMID- 29346020 TI - Sequential Ridge Augmentation Protocol for Hard and Soft Tissue Grafting in Alveolar Ridge Deficiencies: A Proposed Evidence-Based Algorithm. PMID- 29346021 TI - Extending Implications of Study Findings on Real-World Implementation. PMID- 29346022 TI - The Road From Theory to Reality: Illuminating the Complexity of Prospective Cancer Bundles. PMID- 29346023 TI - Fertility Preservation in Pediatric Oncology Patients: New Perspectives. AB - Over the past 30 years, advances in antineoplastic treatment led to a significant increase in the survival of patients with childhood cancer. In Europe and the United States, 82% of children, adolescents, and young adults survive 5 years from the cancer diagnosis and the majority achieves long-term survival into adulthood. The impact of cancer therapy on fertility is related to the age of the patient and to the duration, dose/intensity, and type of treatment. Exposure to chemotherapy or to radiation to gonads or pituitary brings long-term complications of cancer-directed therapies that include effects on reproductive capacity. Different methods to preserve fertility can be offered. In prepubertal women, ovarian tissue freezing, in vitro maturation, and surgical movement of ovaries outside the field of irradiation are still experimental. In pubertal and postpubertal women, oocyte-embryo freezing is an established option. In men, the options are sperm cryopreservation, gonadal transposition, and testicular tissue or spermatogonial cryopreservation and reimplantation. Fertility risks and provision of strategies to minimize cancer treatment impact fertility include discussion of the tail of the option before cancer treatment. Having to make a decision in a limited time, while still coming to terms with a potentially life threatening diagnosis, can cause patients to feel overwhelmed. To date, there are no uniform guidelines on how to approach this problem, so it is important to be aware of it for proper clinical practice. PMID- 29346024 TI - Occurrence of polycyclic aromatic hydrocarbons in surface water and hospital wastewater. AB - The main objective of this study was to determine the occurrence of polycyclic aromatic hydrocarbons (PAHs) in surface water samples collected from different points along the stream that flows through the Campus of the Federal University of Santa Maria, RS-Brazil. Before reaching the campus, the water in the stream is already contaminated by wastewater discharged from the surrounding, and once inside the Campus, additional wastewater from a Gas Station situated close to the University hospital. A bench scale photodegradation experiment was conducted of the occurring traces of anthracene, phenanthrene and naphthalene, with the aid of a stirred tank reactor and polymer-supported TiO2 as a catalyst. To prevent loss of the low soluble analytes, it was necessary to add 5% and 10% acetonitrile, as an organic modifier of the synthetic aqueous solutions and real samples, respectively. An experimental design was employed and the best conditions for the photocatalysis of the aqueous solutions and real samples were pH 9 and pH 7, and 35 degrees C and 30 degrees C, respectively. Under optimized conditions, the analytes were completely degraded after 60 min of irradiation. The subproducts of the photocatalysis were identified through gas chromatography/mass spectrometry, and fragmentation routes were proposed. The mean concentrations of PAHs in the polluted surface water and hospital wastewater were relatively high: 3.9 +/- 1.7 and 21.5 +/- 2.8 ug L-1, respectively. A preliminary risk assessment revealed that the presence of anthracene requires particular attention. The risk posed by the occurrence of PAHs in the surface water and hospital wastewater samples confirms the need for an efficient treatment system. PMID- 29346025 TI - Linkage of Metabolic Defects to Activated PIK3CA Alleles in Endothelial Cells Derived from Lymphatic Malformation. AB - BACKGROUND: Lymphatic endothelial cells (LECs) derived from lymphatic malformations (LMs) bear activated PIK3CA alleles yet display an inflammatory gene expression profile. A basis for the inflammatory phenotype was sought by screening for coexisting somatic mutations. METHODS AND RESULTS: Fourteen independent LEC populations bearing activated PIK3CA alleles were isolated from LM. These were characterized by the expression of growth and inflammatory genes (VEGFC, IL-6, COX-2, IL-8, HO-1, E-SEL) by qRT-PCR. Most commonly upregulated gene products were VEGFC, COX2, HO-1, and ANGPTL4. The specific inhibition of PI3K reduced VEGFC expression without resolving inflammation. Whole exome sequencing of six LM-LEC populations identified five novel somatically acquired alleles coexisting with activated PIK3CA alleles. Two affected genes regulate lipid droplet metabolism (FITM2 and ATG2A), two are gene regulators (MTA1 and TAF1L), and the fifth is an isoform of ANK3 (an endosomal/lysosomal protein). Inhibition of AMPK implicated its involvement in regulating COX-2 and HO-1 overexpression. ANGPTL4 expression was independent of AMPK and PI3K activity and reflected lipid stress demonstrated in normal LECs. AMPK activation with AICAR had a selective growth-limiting effect in a subset of LM-LEC isolates. CONCLUSIONS: Inflammatory stress displayed by LM-LECs is consistent with errors in lipid metabolism that may be linked to acquired mutations. The acquisition of PIK3CA alleles may be a permissive event that antagonizes inflammation and metabolic defect. PMID- 29346026 TI - A Scintigraphic Method for Quantitation of Lymphatic Function in Arm Lymphedema. AB - BACKGROUND: Lymphoscintigraphy is commonly used to assess breast cancer-related lymphedema. However, a reliable quantitative method that clearly distinguishes normal lymphatic function from lymphedema is desired. We propose a quantitative method based upon the physiological mean transit time (MTT) measure of lymph fluid passing through the arm. METHODS AND RESULTS: Eleven patients, aged 34-68 years, with unilateral arm lymphedema following breast cancer treatment underwent simultaneous bilateral lymphoscintigraphy using intradermal injection of 99mTc labeled human serum albumin (HSA). Imaging was performed at 30-45 minute intervals for 5 hours. Time activity curves from each injection site and each arm region were recorded. The input into the arm region was obtained as the (minus) time derivative of the injection site activity curve. In the proposed model the arm activity curve was considered to arise from the convolution of the retention function and the input function. The retention function was obtained by fitting the calculated arm activity curve to the measured arm activity curve. The MTT of activity passing through the arm was calculated as the time integral of the resulting retention function. All measured time activity curves were well described by the model. The MTT of the lymphedema arm (mean 60.1 minutes, range 22-105 minutes) was markedly different from that of the contralateral normal arm (mean 5.4 minutes, range 1.2-8.7 minutes), p < 0.0001. CONCLUSION: The proposed model showed great similarity with measured time activity curves and was capable of quantitatively distinguishing lymphatic function of the lymphedema arm from that of the normal arm in terms of calculated MTT. PMID- 29346027 TI - Postsurgical Outcomes and Surgical Completeness of Robotic Thyroid Surgery: A Single Surgeon's Experience on 700 Cases. AB - BACKGROUND: Advanced technology and understanding of robotic surgical system have rendered robotic thyroid surgery more expanding. The aim of this study was to identify the periodic changes in postsurgical outcomes of robotic thyroid surgery performed by a single surgeon. METHODS: We conducted a retrospective review of 700 robotic thyroid surgery cases using gasless trans-axillary approach. RESULTS: All patients underwent successful operations without conversion to open surgery, and were mostly younger than 45 years, female, less-extended thyroid surgery and lymph node dissection, and thyroid cancer. The median follow-up period was 67 months (12-99 months). Regarding technical outcomes, the operation time declined steeply after 100 consecutive cases, and reached 120.0-132.7 minutes for thyroid lobectomy and 162.9-174.1 minutes for total thyroidectomy (TT). The most common complication was transient hypoparathyroidism (43.7%), whose incidence decreased steeply to a range of 9.1% to 25.0% after 300 consecutive cases. Regarding surgical completeness for thyroid cancer, an average of seven lymph nodes was retrieved through central compartment node dissection without fluctuation over time. The proportion of the patients with serum stimulated thyroglobulin levels <10 ng/mL at the time of radioactive iodine remnant ablation after TT and <1 ng/mL 6-12 months after the first remnant ablation ranged between 86.4%-100% and 66.7%-100%, respectively, without significant fluctuation. CONCLUSION: For properly selected patients, robotic thyroid surgery is useful surgical option with reliable technical outcome and surgical completeness and cosmetic benefit. PMID- 29346029 TI - Unifying Visual Space Across the Left and Right Hemifields. AB - Visual space is perceived as continuous and stable even though visual inputs from the left and right visual fields are initially processed separately within the two cortical hemispheres. In the research reported here, we examined whether the visual system utilizes a dynamic recalibration mechanism to integrate these representations and to maintain alignment across the visual fields. Subjects adapted to randomly oriented moving lines that straddled the vertical meridian; these lines were vertically offset between the left and right hemifields. Subsequent vernier alignment judgments revealed a negative aftereffect: An offset in the same direction as the adaptation was required to correct the perceived misalignment. This aftereffect was specific to adaptation to vertical, but not horizontal, misalignments and also occurred following adaptation to movie clips and patterns without coherent motion. Our results demonstrate that the visual system unifies the left and right halves of visual space by continuously recalibrating the alignment of elements across the visual fields. PMID- 29346030 TI - The Challenge of Surgical Sepsis. PMID- 29346031 TI - 2016 New Horizons Lecture: Beyond Imaging-Radiology of Tomorrow. AB - This article is based on the New Horizons lecture delivered at the 2016 Radiological Society of North America Annual Meeting. It addresses looming changes for radiology, many of which stem from the disruptive effects of the Fourth Industrial Revolution. This is an emerging era of unprecedented rapid innovation marked by the integration of diverse disciplines and technologies, including data science, machine learning, and artificial intelligence technologies that narrow the gap between man and machine. Technologic advances and the convergence of life sciences, physical sciences, and bioengineering are creating extraordinary opportunities in diagnostic radiology, image-guided therapy, targeted radionuclide therapy, and radiology informatics, including radiologic image analysis. This article uses the example of oncology to make the case that, if members in the field of radiology continue to be innovative and continuously reinvent themselves, radiology can play an ever-increasing role in both precision medicine and value-driven health care. (c) RSNA, 2018. PMID- 29346032 TI - Pathways Into Literacy: The Role of Early Oral Language Abilities and Family Risk for Dyslexia. AB - The present study investigated the role of early oral language and family risk for dyslexia in the two developmental pathways toward reading comprehension, through word reading and through oral language abilities. The sample contained 237 children (164 at family risk for dyslexia) from the Dutch Dyslexia Program. Longitudinal data were obtained on seven occasions when children were between 4 and 12 years old. The relationship between early oral language ability and reading comprehension at the age of 12 years was mediated by preliteracy skills and word-decoding ability for the first pathway and by later language abilities for the second pathway. Family risk influenced literacy development through its subsequent relations with preliteracy skills, word decoding, and reading comprehension. Although performance on language measures was often lower for the family-risk group than for the no-family-risk group, family risk did not have a specific relation with either early or later oral language abilities. PMID- 29346033 TI - The psychology of elite cycling: a systematic review. AB - This systematic review sought to synthesise what is currently known about the psychology of elite cycling. Nine electronic databases were searched in March 2017 for studies reporting an empirical test of any psychological construct in an elite cycling sample. Fourteen studies (total n = 427) met inclusion criteria. Eight studies were coded as having high risk of bias. Themes extracted included mood, anxiety, self-confidence, pain, and cognitive function. Few studies had similar objectives meaning that in many instances findings could not be synthesised in a meaningful way. Nevertheless, there was some cross-study evidence that elite cyclists have more positive mood states (relative to normative scores), pre-race anxiety impairs performance (among male cyclists), and associative strategies are perceived as helpful for pain management. Among single studies coded as having low risk of bias, evidence suggests that implicit beliefs affect decision making performance, elite cyclists are less susceptible to mental fatigue (than non-elite cyclists), and better leadership skills relates to greater social labouring. Limitations include non-standardisation of measures, lack of follow-up data, small sample sizes, and overall poor research quality. The findings of this systematic review might be used to inform research and theory development on the psychology of elite endurance cycling. PMID- 29346034 TI - Coagulopathy in Severe Sepsis: Interconnectivity of Coagulation and the Immune System. AB - BACKGROUND: Disseminated intravascular coagulation (DIC) remains a challenging complication of infection with inadequate treatment and significant morbidity and mortality rates. METHODS: Review of the English-language literature. RESULTS: Disseminated intravascular coagulation arises from the immune system's response to microbial invasion, as well as the byproducts of cell death that result from severe sepsis. This response triggers the coagulation system through an interconnected network of cellular and molecular signals, which developed originally as an evolutionary mechanism intended to isolate micro-organisms via fibrin mesh formation. However, this response has untoward consequences, including hemorrhage and thrombosis caused by dysregulation of the coagulation cascade and fibrinolysis system. Ultimately, diagnosis relies on clinical findings and laboratory studies that recognize excessive activation of the coagulation system, and treatment focuses on supportive measures and correction of coagulation abnormalities. Clinically, DIC secondary to sepsis in the surgical population presents a challenge both in diagnosis and in treatment. Biologically, however, DIC epitomizes the crosstalk between signaling pathways that is essential to normal physiology, while demonstrating the devastating consequences when failure of local control results in systemic derangements. CONCLUSIONS: This paper discusses the pathophysiology of coagulopathy and fibrinolysis secondary to sepsis, the diagnostic tools available to identify the abnormalities, and the available treatments. PMID- 29346035 TI - Determination of 105 antibiotic, anti-inflammatory, antiparasitic agents and tranquilizers by LC-MS/MS based on an acidic QuEChERS-like extraction. AB - A procedure for screening 105 veterinary drugs in foods by liquid chromatography tandem mass-spectrometry (LC-MS/MS) is presented. Its scope encompasses raw materials of animal origin (milk, meat, fish, egg and fat) but also related processed ingredients and finished products commonly used and manufactured by food business operators. Due to the complexity of the matrices considered and to efficiently deal with losses during extraction and matrix effects during MS source ionisation, each sample was analysed twice, that is 'unspiked' and 'spiked at the screening target concentration' using a QuEChERS-like extraction. The entire procedure was validated according to the European Community Reference Laboratories Residues Guidelines. False-negative and false-positive rates were below 5% for all veterinary drugs whatever the food matrix. Effectiveness of the procedure was further demonstrated through participation to five proficiency tests and its ruggedness demonstrated in quality control operations by a second laboratory. PMID- 29346036 TI - Genetics, the Rearing Environment, and the Intergenerational Transmission of Divorce: A Swedish National Adoption Study. AB - We used classical and extended adoption designs in Swedish registries to disentangle genetic and rearing-environment influences on the intergenerational transmission of divorce. In classical adoption analyses, adoptees ( n = 19,715) resembled their biological parents, rather than their adoptive parents, in their history of divorce. In extended adoption analyses, offspring ( n = 82,698) resembled their not-lived-with fathers and their lived-with mothers. There was stronger resemblance to lived-with mothers, providing indirect evidence of rearing-environment influences on the intergenerational transmission of divorce. The heritability of divorce assessed across generations was 0.13. We attempted to replicate our findings using within-generation data from adoptive and biological siblings ( ns = 8,523-53,097). Adoptees resembled their biological, not adoptive, siblings in their history of divorce. Thus, there was consistent evidence that genetic factors contributed to the intergenerational transmission of divorce but weaker evidence for a rearing-environment effect of divorce. Within-generation data from siblings supported these conclusions. PMID- 29346037 TI - Development of an ultrasensitive PCR assay for polycyclic musk determination in fish. AB - Polycyclic musks (PCMs) in the aquatic environment and organisms have become an emerging environmental issue because of their potential risk. The most used method for polycyclic musk determination is gas chromatography-mass spectrometry (GC-MS) with different sample extractions, which are somewhat expensive to operate, complex and laborious. In this study, a novel and ultrasensitive real time polymerase chain reaction (PCR) assay with multiple signal amplification of carboxylic-DNA by gold nanoparticle-polyamidoamine conjugation (Au-PAMAM) was developed for determining polycyclic musks in fish. Hapten and immunogen were specially prepared. Polyclonal antibodies were produced based on the optimal immunisation, and the antibodies were characterised. Due to PAMAM's unique nanostructure of numerous functional amino groups, polyclonal antibody and carboxylic-DNA were immobilised by Au-PAMAM conjugation to develop the antibody Au-PAMAM-DNA probes, which were used as a signal DNA amplifier in the PCR system. Compared with real-time immuno-PCR, this biological probe-amplified immuno-PCR (BPAI-PCR) assay had higher sensitivity due to the probes' higher ratio of signal DNA. Finally, the BPAI-PCR assay was applied to analyse AHTN (7-acetyl 1,1,3,4,4,6-hexamethyl-1,2,3,4-tetrahydronaphthalene,Tonalide) concentrations in fish samples in the range from 1 pg/L to 10 ng/L, giving an of LOD 0.61 pg/L. In general, due to the specificity of the antibody and novel nanoprobe design, this BPAI-PCR assay provided a potential way for trace analysis of AHTN in the aquatic organisms. The high concentrations of AHTN found in cultivated fish should encourage further toxicological studies. PMID- 29346038 TI - Smartphone Applications for Amblyopia Treatment: A Review of Current Apps and Professional Involvement. AB - OBJECTIVES: The objective of this study was to review games for amblyopia (lazy eye) that are commercially available in mobile applications (apps) stores and assess the involvement of eye care professionals in their development. MATERIALS AND METHODS: The Google play store and the Apple iTunes store were searched in July 2017 and updated in September 2017 for amblyopia games using the terms amblyopia, lazy eye, amblyopia therapy, lazy eye therapy, lazy eye exercises, amblyopia exercises, lazy eye games, and amblyopia games. General ophthalmology or optometry apps and apps in languages other than English were excluded. RESULTS: A total of 42 games were identified, 12 Android only (28%), 20 iOS only (48%), and 10 (24%) both Android and iOS. Most of the games were available under the medical category (60%). Most of the games were released in 2015. The price of the games ranged from $0.00 to $32.00 (USD). Nearly half of the games (45%) were to be played binocularly either using red-green goggles (38%) or a virtual reality set (7%). Only 7% of the games had explicitly documented the involvement of eye care professionals during game development. Only one game (app) was developed in collaboration with a research group and a children's hospital. CONCLUSIONS: This study identified that most of the currently available games do not have eye care professional input. An establishment of the quality assurance by a body of qualified eye care professionals could enhance the confidence of patients and clinicians using the game. PMID- 29346039 TI - Evaluation of a French Regional Telemedicine Network Dedicated to Neurological Emergencies: A 14-Year Study. AB - BACKGROUND: Equality in healthcare between urban and rural areas is problematic in France. Telemedicine networks are expected to improve equality in expertise assessment. We aimed to evaluate the use and impact of a regional rural French telemedicine network, dedicated to medical and surgical neurological emergencies, on interhospital patient transfers. METHODS: Eight community hospital emergency departments were remotely connected to the only university hospital in Franche Comte, France. We prospectively obtained data from all patients consecutively admitted to emergency care departments in the region and who received medical or neurosurgical expertise by telemedicine from January 2002 to December 2015. The reasons for requesting expertise, number of requested neurological opinions, and interhospital patient transfers were analyzed. Economic savings were determined by estimating the cost of avoided transfers. RESULTS: A total of 23,710 patients had telemedicine consultations in the region. The network was used by every community hospital (independently of the existence of local neurological teams). These consultations were overwhelmingly for cases of stroke (30%) and head or spinal injuries (36%). Cerebral tumors represented 9% of teleconsultations. In 2015, 75% of patients admitted to the remote hospitals that did not have onsite neurological expertise nevertheless received neurovascular tele-expertise. The rate of thrombolyzed patients dramatically increased within 13 years regionally (9.9%) and 33.5% of thrombolyses were performed by telemedicine. The number of patients examined by telemedicine and admitted for head or spinal injuries also increased over the 13-year period (12% vs. 21%). Secondary interhospital transfers were halved for both pathologies. The estimated saving is ~?3.5 million. CONCLUSION: Telemedicine networks facilitate acute-phase neurological assessment and prevent unnecessary secondary interhospital transfers. PMID- 29346040 TI - Bevacizumab Maintenance Versus No Maintenance During Chemotherapy-Free Intervals in Metastatic Colorectal Cancer: A Randomized Phase III Trial (PRODIGE 9). AB - Purpose Conflicting results are reported for maintenance treatment with bevacizumab during chemotherapy-free intervals (CFI) in metastatic colorectal cancer after induction chemotherapy. Patients and Methods In this open-label, phase III, randomized controlled trial, we compared the tumor control duration (TCD) observed with bevacizumab maintenance and with no treatment (observation) during CFI subsequent to induction chemotherapy with 12 cycles of fluorouracil, leucovorin, and irinotecan plus bevacizumab. After disease progression, the induction regimen was repeated for eight cycles, followed by a new CFI. Results From March 2010 to July 2013, 491 patients were randomly assigned. Disease progression or death occurred during induction chemotherapy in 85 patients (17%); 261 patients (53%) had at least one reinduction, 107 (22%) had two reinductions, and 56 (11%) had three or more reinductions. The median TCD was 15 months in both groups; the median progression-free survival (PFS) from randomization was 9.2 and 8.9 months in the maintenance group and observation groups, respectively. The TCD observed in both groups was higher compared with the TCD hypotheses of the trial. The median overall survival (OS) was 21.7 and 22.0 months in the maintenance and observation groups, respectively. In the per-protocol population, defined as patients with at least one reinduction after the first progression, the median duration of the first CFI was 4.3 months in both arms; the median TCD was 17.8 and 23.3 months ( P = .339), the median PFS was 9.9 and 9.5 months, and the median OS was 27.6 and 28.5 months in the maintenance and observation groups, respectively. Multivariable analysis revealed that female gender, WHO performance status >= 2, and unresected primary tumors were associated with a shorter TCD. Conclusion Bevacizumab maintenance monotherapy did not improve TCD, CFI duration, PFS, or OS. PMID- 29346041 TI - Post-Treatment Mortality After Surgery and Stereotactic Body Radiotherapy for Early-Stage Non-Small-Cell Lung Cancer. AB - Purpose In early-stage non-small cell lung cancer (NSCLC), post-treatment mortality may influence the comparative effectiveness of surgery and stereotactic body radiotherapy (SBRT), with implications for shared decision making among high risk surgical candidates. We analyzed early mortality after these interventions using the National Cancer Database. Patients and Methods We abstracted patients with cT1-T2a, N0, M0 NSCLC diagnosed between 2004 and 2013 undergoing either surgery or SBRT. Thirty-day and 90-day post-treatment mortality rates were calculated and compared using Cox regression and propensity score-matched analyses. Results We identified 76,623 patients who underwent surgery (78% lobectomy, 20% sublobar resection, 2% pneumonectomy) and 8,216 patients who received SBRT. In the unmatched cohort, mortality rates were moderately increased with surgery versus SBRT (30 days, 2.07% v 0.73% [absolute difference (Delta), 1.34%]; P < .001; 90 days, 3.59% v 2.93% [Delta, 0.66%]; P < .001). Among the 27,200 propensity score-matched patients, these differences increased (30 days, 2.41% v 0.79% [Delta, 1.62%]; P < .001; 90 days, 4.23% v 2.82% [Delta, 1.41%]; P < .001). Differences in mortality between surgery and SBRT increased with age, with interaction P < .001 at both 30 days and 90 days (71 to 75 years old: 30-day Delta, 1.87%; 90-day Delta, 2.02%; 76 to 80 years old: 30-day Delta, 2.80%; 90 day Delta, 2.59%; > 80 years old: 30-day Delta, 3.03%; 90-day Delta, 3.67%; all P <= .001). Compared with SBRT, surgical mortality rates were higher with increased extent of resection (30-day and 90-day multivariate hazard ratio for mortality: sublobar resection, 2.85 and 1.37; lobectomy, 3.65 and 1.60; pneumonectomy, 14.5 and 5.66; all P < 0.001). Conclusion Differences in 30- and 90-day post-treatment mortality between surgery and SBRT increased as a function of age, with the largest differences in favor of SBRT observed among patients older than 70 years. These representative mortality data may inform shared decision making among patients with early-stage NSCLC who are eligible for both interventions. PMID- 29346042 TI - Treatment of Malignant Pleural Mesothelioma: American Society of Clinical Oncology Clinical Practice Guideline. AB - Purpose To provide evidence-based recommendations to practicing physicians and others on the management of malignant pleural mesothelioma. Methods ASCO convened an Expert Panel of medical oncology, thoracic surgery, radiation oncology, pulmonary, pathology, imaging, and advocacy experts to conduct a literature search, which included systematic reviews, meta-analyses, randomized controlled trials, and prospective and retrospective comparative observational studies published from 1990 through 2017. Outcomes of interest included survival, disease free or recurrence-free survival, and quality of life. Expert Panel members used available evidence and informal consensus to develop evidence-based guideline recommendations. Results The literature search identified 222 relevant studies to inform the evidence base for this guideline. Recommendations Evidence-based recommendations were developed for diagnosis, staging, chemotherapy, surgical cytoreduction, radiation therapy, and multimodality therapy in patients with malignant pleural mesothelioma. Additional information is available at www.asco.org/thoracic-cancer-guidelines and www.asco.org/guidelineswiki . PMID- 29346043 TI - Analysis of Margin Classification Systems for Assessing the Risk of Local Recurrence After Soft Tissue Sarcoma Resection. AB - Purpose To compare the ability of margin classification systems to determine local recurrence (LR) risk after soft tissue sarcoma (STS) resection. Methods Two thousand two hundred seventeen patients with nonmetastatic extremity and truncal STS treated with surgical resection and multidisciplinary consideration of perioperative radiotherapy were retrospectively reviewed. Margins were coded by residual tumor (R) classification (in which microscopic tumor at inked margin defines R1), the R+1mm classification (in which microscopic tumor within 1 mm of ink defines R1), and the Toronto Margin Context Classification (TMCC; in which positive margins are separated into planned close but positive at critical structures, positive after whoops re-excision, and inadvertent positive margins). Multivariate competing risk regression models were created. Results By R classification, LR rates at 10-year follow-up were 8%, 21%, and 44% in R0, R1, and R2, respectively. R+1mm classification resulted in increased R1 margins (726 v 278, P < .001), but led to decreased LR for R1 margins without changing R0 LR; for R0, the 10-year LR rate was 8% (range, 7% to 10%); for R1, the 10-year LR rate was 12% (10% to 15%) . The TMCC also showed various LR rates among its tiers ( P < .001). LR rates for positive margins on critical structures were not different from R0 at 10 years (11% v 8%, P = .18), whereas inadvertent positive margins had high LR (5-year, 28% [95% CI, 19% to 37%]; 10-year, 35% [95% CI, 25% to 46%]; P < .001). Conclusion The R classification identified three distinct risk levels for LR in STS. An R+1mm classification reduced LR differences between R1 and R0, suggesting that a negative but < 1-mm margin may be adequate with multidisciplinary treatment. The TMCC provides additional stratification of positive margins that may aid in surgical planning and patient education. PMID- 29346045 TI - In This Issue * February 1, 2018. PMID- 29346044 TI - Clinical features, treatment, and outcomes of cutaneous and oral squamous cell carcinoma in avian species. AB - OBJECTIVE To determine the clinical features, treatment, and outcomes of treatment for oral and cutaneous squamous cell carcinoma (SCC) in avian species. DESIGN Retrospective case series with nested cohort study. ANIMALS 87 client owned birds of various species with histologically confirmed SCC of the skin or oral cavity. PROCEDURES Clinicians entered case information through an online survey tool. Data were collected regarding patient signalment, concurrent conditions, treatments, adverse effects, and clinical outcomes. Relationships were examined between complete excision and partial or complete response. Survival analysis was performed to compare outcomes among groupings of therapeutic approaches. RESULTS Only 7 of 64 (11%) birds for which full outcome data were available had complete remission of SCC; 53 (83%) had progressive disease, were euthanized, or died of the disease. The unadjusted OR for partial or complete response following complete tumor excision (vs other treatment approaches) was 6.9 (95% confidence interval [CI], 1.8 to 25.8). Risk of death was 62% lower (hazard ratio, 0.38; 95% CI, 0.19 to 0.77) for birds that underwent complete excision versus conservative treatment. Median survival time from initial evaluation for birds receiving complete excision was 628 days (95% CI, 210 to 1,008 days), compared with 171 days (95% CI, 89 to 286 days) for birds receiving monitoring with or without conservative treatment. Birds receiving any other additional treatment had a median survival time of 357 days (95% CI, 143 to 562 days). CONCLUSIONS AND CLINICAL RELEVANCE For birds with SCC, complete excision was the only treatment approach significantly associated with complete or partial response and increased survival time. PMID- 29346046 TI - Ultrasonographic characteristics of the reproductive tract and serum progesterone and estradiol concentrations in captive female red wolves (Canis rufus) with and without reproductive tract disease. AB - OBJECTIVE To describe ultrasonographic characteristics of the reproductive tract and serum progesterone and estradiol concentrations in captive female red wolves (Canis rufus) with and without reproductive tract disease. DESIGN Prospective study. ANIMALS 13 adult female red wolves. PROCEDURES Wolves with varying parity and history of contraceptive treatment were anesthetized to facilitate ultrasonographic examination and measurement of the reproductive tract and blood collection for determination of serum progesterone and estradiol concentrations in December 2011 and June 2012. Additionally, during the December evaluation, fine-needle aspirate samples of the uterus were obtained for cytologic evaluation. Measurements were compared between wolves with and without reproductive tract disease and between wolves that had and had not received a contraceptive. RESULTS 7 of 13 wolves had or developed reproductive tract disease during the study. Ranges for measurements of reproductive tract structures overlapped between ultrasonographically normal and abnormal tracts, but measurements for abnormal tracts were generally greater than those for normal tracts. The ultrasonographic diagnosis was consistent with the histologic diagnosis for reproductive tracts obtained from wolves that were sterilized, were euthanized, or died during the study. Cytologic results for fine-needle aspirate samples of the uterus and serum progesterone and estradiol concentrations were unable to distinguish wolves with and without reproductive tract disease. Reproductive tract disease was not associated with parity or contraceptive administration. CONCLUSIONS AND CLINICAL RELEVANCE The ultrasonographic images, reproductive tract measurements, and descriptions of reproductive tract lesions provided in this study can be used as diagnostic guidelines for the treatment and management of red wolves with reproductive tract disease. PMID- 29346047 TI - Cultivating our next generation of leaders. PMID- 29346048 TI - Risk factors and prognostic indicators for surgical outcome of dogs with esophageal foreign body obstructions. AB - OBJECTIVE To determine risk factors for surgical intervention, complications, and outcome in dogs with an esophageal foreign body (EFB). DESIGN Retrospective observational study. ANIMALS 224 incidents of EFB in 223 dogs evaluated at a veterinary teaching hospital from 1995 through 2014. PROCEDURES Hospital records were reviewed to collect data regarding signalment, history, clinical signs, EFB type and location, procedures, complications, and outcomes. Breed distributions were compared between dogs with EFB and the entire canine patient population during the study period. Variables were tested for associations with each other and with outcomes. RESULTS Terrier breeds were most common (71/233 [30.5%]). Duration of EFB entrapment, body weight, anorexia, lethargy, rectal temperature, and esophageal perforation were associated with the need for surgical intervention. Older age, longer duration of EFB entrapment, and perforation were associated with a poorer prognosis. Endoscopic retrieval or advancement into the stomach was successful for 183 of 219 (83.6%) EFBs, and 16 of 143 (11.2%) entrapments resulted in postprocedural esophageal stricture. Overall median duration of hospitalization was brief (1 day), and the need for surgical intervention was associated with a longer duration. Overall mortality rate was 5.4% (12/223); 90 of 102 (88.2%) dogs with a median follow-up period of 27 months after EFB treatment had an excellent outcome. CONCLUSIONS AND CLINICAL RELEVANCE Study findings suggested that endoscopic EFB retrieval remains the initial treatment option of choice for affected dogs, provided that esophageal perforation does not necessitate surgical intervention. Although esophageal stricture formation was the most common complication, the overall rate of this outcome was low. PMID- 29346049 TI - Microphthalmia, corneal dermoids, and congenital anomalies resembling Goldenhar syndrome in a cat. AB - CASE DESCRIPTION An 18-month-old spayed female domestic shorthair cat was evaluated because of conjunctivitis and skin-fold dermatitis secondary to bilateral microphthalmia, corneal dermoids, and ankyloblepharon. CLINICAL FINDINGS Physical examination revealed bilateral microphthalmia, bilaterally symmetrical corneal dermoids, ankyloblepharon, superior and inferior entropion, prognathism, and facial asymmetry with deviation of the nasal septum. Computed tomography revealed malformed, thickened bony orbits with mineralization of the orbital ligament bilaterally. Moderate rightward deviation of the nasal septum and ventral nasal meatus was also evident, with no identifiable maxillary sinuses. Results of MRI of the brain were unremarkable. Abdominal ultrasonography showed an irregularly marginated left kidney and a right kidney defect suggestive of chronic renal infarction. An abnormal, well-demarcated, focally thickened region of the muscularis externa of the jejunum was also evident. TREATMENT AND OUTCOME Transpalpebral enucleation was performed bilaterally. Histologic examination of ocular tissues confirmed the corneal dermoids and microphthalmia with anterior and posterior segment dysgenesis and cataracts in both eyes. Ocular discomfort resolved after postoperative recovery, and follow-up revealed that the patient's activity level and quality of life were excellent. No clinical signs of upper respiratory, urinary, or gastrointestinal tract disease were observed during the approximately 3.5-year follow-up period. CLINICAL RELEVANCE The congenital abnormalities observed resembled those described for human patients with Goldenhar syndrome, and the outcome of treatment was favorable. This report may prompt clinicians to consider this diagnosis when evaluating young cats with similar clinical signs. PMID- 29346050 TI - Diagnosis and management of inflammatory bowel disease in a harpy eagle (Harpia harpyja) with suspected fenbendazole toxicosis. AB - CASE DESCRIPTION A 14-year-old 4.1-kg (9.02-lb) male harpy eagle (Harpia harpyja) was evaluated because of vomiting, anorexia, lethargy, and weight loss (decrease of 0.35 kg [0.77 lb]) of 4 weeks' duration. The bird had previously been treated orally with fenbendazole after the initial onset of clinical signs. CLINICAL FINDINGS An initial CBC revealed marked heteropenia and anemia, but whole-body contrast-enhanced CT images and other diagnostic test findings were unremarkable. Clinical signs persisted, and additional diagnostic testing failed to reveal the cause. During celiotomy, a biopsy specimen of the duodenum was obtained for histologic examination, which revealed lymphoplasmacytic inflammation, consistent with inflammatory bowel disease (IBD). TREATMENT AND OUTCOME Prior to histopathologic diagnosis of IBD, barium sulfate administered via gavage resulted in a temporary improvement of clinical signs. Following diagnosis of IBD, corticosteroid administration was initiated in conjunction with antifungal prophylaxis. Cessation of vomiting and a return to normal appetite occurred within 3 days. Fifteen months after cessation of corticosteroid treatment, the eagle continued to do well. CLINICAL RELEVANCE To our knowledge, this was the first report of diagnosis and management of IBD in an avian species. For the eagle of the present report, results of several diagnostic tests increased clinical suspicion of IBD, but histologic examination of an intestinal biopsy specimen was required for definitive diagnosis. Although successful in this case, steroid administration in avian species must be carefully considered. Conclusive evidence of fenbendazole toxicosis was not obtained, although it was highly suspected in this bird. PMID- 29346051 TI - Diagnosis, treatment, and outcome of and risk factors for ophthalmic disease in leopard geckos (Eublepharis macularius) at a veterinary teaching hospital: 52 cases (1985-2013). AB - OBJECTIVE To describe diagnosis, treatment, and outcome of and risk factors for ophthalmic disease in leopard geckos (Eublepharis macularius) evaluated at a veterinary teaching hospital. DESIGN Retrospective case series. ANIMALS 112 of 144 (78%) leopard geckos that were evaluated at a veterinary teaching hospital in January 1985 through October 2013 and for which sufficient medical record information was available. PROCEDURES Information from medical records was used to identify leopard geckos with ophthalmic disease, characterize cases, and determine risk factors for the presence of ophthalmic disease. RESULTS Of the 112 leopard geckos, 52 (46%) had ophthalmic disease (mainly corneal or conjunctival disease). Female geckos were less likely to have ophthalmic disease, and there was a positive association between increasing age and ophthalmic disease. Use of a paper towel substrate, absence of any heat source, and lack of vitamin A supplementation were positively associated with a diagnosis of ophthalmic disease. Head dysecdysis was the only concurrent disorder significantly associated with ophthalmic disease. At necropsy, 5 affected leopard geckos had squamous metaplasia of the conjunctivae. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that ophthalmic disease is a common finding in leopard geckos. The cause of ocular surface disease in leopard geckos may be multifactorial, and hypovitaminosis A may be an important risk factor. Although animals receiving supplemental vitamin A were less likely to have ophthalmic disease, further understanding is required regarding the metabolism of and nutritional requirements for vitamin A in leopard geckos. PMID- 29346052 TI - Pathology in Practice. PMID- 29346053 TI - What Is Your Diagnosis? PMID- 29346055 TI - Pathology in Practice. PMID- 29346056 TI - Esophageal leiomyoma in a dog causing esophageal distension and treated by transcardial placement of a self-expanding, covered, nitinol esophageal stent. AB - CASE DESCRIPTION A 10-year-old spayed female Rottweiler was referred for evaluation because of a 2-month history of regurgitation and weight loss, despite no apparent change in appetite. The dog had received antiemetic and antacid treatment, without improvement. CLINICAL FINDINGS Physical examination revealed a low body condition score (2/5), but other findings were unremarkable. Diffuse, global esophageal dilatation was noted on plain thoracic radiographs, and normal motility was confirmed through videofluoroscopic evaluation of swallowing. Transhepatic ultrasonographic and CT examination revealed a circumferential, intraparietal lesion in the distal portion of the esophagus causing distal esophageal or cardial subobstruction and no metastases. Incisional biopsy of the lesion was performed, and findings of histologic examination supported a diagnosis of esophageal leiomyoma. TREATMENT AND OUTCOME In view of numerous possible complications associated with esophageal surgery, the decision was made to palliatively treat the dog by transcardial placement of a self-expanding, covered, nitinol esophageal stent under endoscopic guidance. Two weeks after stent placement, radiography revealed complete migration of the stent into the gastric lumen. Gastrotomy was performed, and the stent was replaced and fixed in place. Twenty-four months after initial stent placement, the dog had a healthy body condition and remained free of previous clinical signs. CLINICAL RELEVANCE Diffuse benign muscular neoplasia should be considered as a differential diagnosis for acquired esophageal dilatation in adult and elderly dogs. In the dog of this report, transcardial stent placement resulted in resolution of the clinical signs, with no apparent adverse effect on digestive function. The described procedure could be beneficial for nonsurgical treatment of benign esophageal tumors in dogs. PMID- 29346057 TI - Anesthesia Case of the Month. PMID- 29346058 TI - How Much Do We Spend? Creating Historical Estimates of Public Health Expenditures in the United States at the Federal, State, and Local Levels. AB - The United States has a complex governmental public health system. Agencies at the federal, state, and local levels all contribute to the protection and promotion of the population's health. Whether the modern public health system is well situated to deliver essential public health services, however, is an open question. In some part, its readiness relates to how agencies are funded and to what ends. A mix of Federalism, home rule, and happenstance has contributed to a siloed funding system in the United States, whereby health agencies are given particular dollars for particular tasks. Little discretionary funding remains. Furthermore, tracking how much is spent, by whom, and on what is notoriously challenging. This review both outlines the challenges associated with estimating public health spending and explains the known sources of funding that are used to estimate and demonstrate the value of public health spending. PMID- 29346059 TI - Fermented Extraction of Citrus unshiu Peel Inhibits Viability and Migration of Human Pancreatic Cancers. AB - Pancreatic cancer is one of the most dangerous cancers with high mortality rates. Despite continuous efforts, there has been limited improvement in its prognosis. In this study, we prepared fermented extract of Citrus unshiu peel (fCUP) from the by-product after juice processing and then examined the anticancer effects of fCUP on human pancreatic cancer cells. Treatment with fCUP inhibited the growth of human pancreatic cancer cells through induction of caspase-3 cleavage both in vitro and in vivo. Treatment with fCUP also blocked the migration of human pancreatic cancer cells through activation of intracellular signaling pathways such as MKK3/6 and P38. In contrast, treatment with fCUP did not inhibit growth and migration of human umbilical vein endothelial cells. In addition, we found that fCUP mainly consisted of aboriginal compounds, narirutin and hesperidin, as well as newly generated compounds, naringenin and hesperetin. In silico analysis showed that naringenin and hesperetin were the unique modules related to anticancer effect. Furthermore, fCUP exhibited the anticancer effects in in vivo xenograft models. Collectively, these results suggest that fCUP might have the potential to be developed into an effective anticancer drug for pancreatic cancers without causing adverse side-effects. PMID- 29346060 TI - A Combination with Probiotic Complex, Zinc, and Coenzyme Q10 Attenuates Autoimmune Arthritis by Regulation of Th17/Treg Balance. AB - Probiotic complex, zinc, and coenzyme Q10 (CoQ10) are recognized dietary supplements with an anti-inflammatory role. Although these supplementations are individually known to benefit rheumatoid arthritis (RA), there is no evidence suggesting any synergic effect. The primary goal of this study is to determine whether probiotic complex, zinc, and CoQ10 attenuate the development of collagen induced arthritis (CIA). The combination of probiotic complex, zinc, and CoQ10 reduced CIA severity by downregulating the levels of IgG, IgG1, and IgG2a in serum. Joint inflammation, bone destruction, and cartilage damage were also improved by the complex. There was a decrease in the expression of tumor necrosis factor (TNF)-alpha, interleukin (IL)-1beta, IL-6, IL-17, and vascular endothelial growth factor (VEGF) in the joint synovium. The balance between helper T 17 (Th17) cells and regulatory T (Treg) cells was shown to be controlled reciprocally by the complex. These findings suggest that the combination of probiotic complex, zinc, and CoQ10 can ameliorate the development of CIA by inhibiting the expression of proinflammatory cytokines, and is thus an important therapeutic candidate for RA treatment. PMID- 29346061 TI - Two Cases of Dengue Fever Imported from Egypt to Russia, 2017. AB - In 2017, two cases of dengue fever were imported from Hurghada, Egypt, where dengue fever was not considered endemic, to Moscow. These cases show how emergence of dengue fever in popular resort regions on the coast of the Red Sea can spread infection to countries where it is not endemic. PMID- 29346062 TI - Television Viewing Time, Physical Activity, and Mortality Among African Americans. AB - BACKGROUND: Prolonged television viewing time, a marker of sedentary activity, is independently associated with increased all-cause mortality; however, this association has rarely been studied in African Americans. The objective of our study was to examine the association between television viewing time and mortality among African Americans by using data from the Jackson Heart Study (JHS). METHODS: We studied 5,289 participants from the JHS study who reported television viewing time (h/day) in the JHS baseline questionnaire from 2000 through 2004. Using multivariable Cox regression models adjusted for age, sex, smoking, alcohol use, physical activity, nutrition, prevalent coronary heart disease, chronic kidney disease, diabetes, and hypertension, we computed hazard ratios to examine the association between television viewing time (<=2 h/day, 2-4 h/day, and >=4 h/day) and mortality. RESULTS: Participants had a mean age of 55 years, and 64% were women. After a median follow-up of 9.9 years (interquartile range, 9.0-10.7), 615 deaths occurred (data analysis conducted in 2017). Hazard ratios for mortality were 1.08 (0.86-1.37) for television time of 2 to 4 hours per day and 1.48 (95% CI: 1.19-1.83) for television time of greater than or equal to 4 hours per day when compared with those who watched television less than 2 hours per day (P trend = .002). When we restricted analyses to those who performed leisure-time activities, the hazard ratios for mortality were 1.10 (95% CI, 0.84-1.45) for television viewing of 2 to 4 hours per day and 1.45 (95% CI, 1.13-1.86) for more than 4 hours per day compared with the less than 2 hours per day. CONCLUSION: Our findings suggest that greater television viewing time, even among those who perform leisure-time physical activities, is associated with increased all-cause mortality among African Americans. Thus, it may serve as an indicator of a sedentary lifestyle with potential for intervention. PMID- 29346063 TI - Linking Data From Health Surveys and Electronic Health Records: A Demonstration Project in Two Chicago Health Center Clinics. AB - INTRODUCTION: Monitoring and understanding population health requires conducting health-related surveys and surveillance. The objective of our study was to assess whether data from self-administered surveys could be collected electronically from patients in urban, primary-care, safety-net clinics and subsequently linked and compared with the same patients' electronic health records (EHRs). METHODS: Data from self-administered surveys were collected electronically from a convenience sample of 527 patients at 2 Chicago health centers from September through November, 2014. Survey data were linked to EHRs. RESULTS: A total of 251 (47.6%) patients who completed the survey consented to having their responses linked to their EHRs. Consenting participants were older, more likely to report fair or poor health, and took longer to complete the survey than those who did not consent. For 8 of 18 categorical variables, overall percentage of agreement between survey data and EHR data exceeded 80% (sex, race/ethnicity, pneumococcal vaccination, self-reported body mass index [BMI], diabetes, high blood pressure, medication for high blood pressure, and hyperlipidemia), and of these, the level of agreement was good or excellent (kappa >=0.64) except for pneumococcal vaccination (kappa = 0.40) and hyperlipidemia (kappa = 0.47). Of 7 continuous variables, agreement was substantial for age and weight (concordance coefficients >=0.95); however, with the exception of calculated survey BMI and EHR-BMI (concordance coefficient = 0.88), all other continuous variables had poor agreement. CONCLUSIONS: Self-administered and web-based surveys can be completed in urban, primary-care, safety-net clinics and linked to EHRs. Linking survey and EHR data can enhance public health surveillance by validating self-reported data, completing gaps in patient data, and extending sample sizes obtained through current methods. This approach will require promoting and sustaining patient involvement. PMID- 29346064 TI - Using Two Disability Measures to Compare Physical Inactivity Among US Adults With Disabilities. AB - Prevalence of health behaviors among adults with disabilities may vary by disability measure. We used data from the 2011-2015 National Health Interview Survey to estimate prevalence of physical inactivity by disability status using 2 measures of disability: Basic Actions Difficulty questions (BADQ) and a standard 6-question measure (6Q). Disability prevalence (BADQ, 31.1%; 6Q, 17.5%) and inactivity prevalence among adults with disability (BADQ, 42.9%; 6Q, 52.5%) and without disability (BADQ, 24.3%; 6Q, 26.2%) varied by measure; however, both measures highlight inactivity disparities for adults with disability. Disability measures influence physical inactivity estimates and are important for guiding surveillance and health promotion activities for adults with disabilities. PMID- 29346065 TI - Accuracy of Principal and Teacher Knowledge of School District Policies on Sun Protection in California Elementary Schools. AB - INTRODUCTION: Policy is a key aspect of school-based efforts to prevent skin cancer. We explored the extent and accuracy of knowledge among principals and teachers in California public school districts about the elements specified in their district's written sun safety policy. METHODS: The sample consisted of California public school districts that subscribed to the California School Boards Association, had an elementary school, adopted Board Policy 5141.7 for sun safety, and posted it online. The content of each policy was coded. Principals (n = 118) and teachers (n = 113) in elementary schools were recruited from September 2013 through December 2015 and completed a survey on sun protection policies and practices from January 2014 through April 2016. RESULTS: Only 38 of 117 principals (32.5%) were aware that their school district had a sun protection policy. A smaller percentage of teachers (13 of 109; 11.9%) than principals were aware of the policy (F108 = 12.76, P < .001). We found greater awareness of the policy among principals and teachers who had more years of experience working in public education (odds ratio [OR] = 1.05, F106 = 4.71, P = .03) and worked in schools with more non-Hispanic white students (OR = 7.65, F109 = 8.61, P = .004) and fewer Hispanic students (OR = 0.28, F109 = 4.27, P = .04). CONCLUSION: Policy adoption is an important step in implementing sun safety practices in schools, but districts may need more effective means of informing school principals and teachers of sun safety policies. Implementation will lag without clear understanding of the policy's content by school personnel. PMID- 29346066 TI - Expression of autophagy related genes in chronic lymphocytic leukemia is associated with disease course. AB - Autophagy leads cells to different fates in various cell types and under diverse contexts. Chronic lymphocytic leukemia (CLL), an incurable hematologic neoplasm, has highly variable course and its heterogeneity prompts interest in exploring autophagic trajectories in CLL. We detected the mRNA levels of two autophagy related genes, BECN1 and ATG5, assessed the association between expression levels and clinical characteristics, and did survival analysis. One hundred and six patients with CLL and fifty healthy controls were enrolled in the present study. CLL samples were found higher expression levels of BECN1 and ATG5 mRNA compared with healthy controls. Further confirmation at the protein level performed in a small cohort of patients, which included Beclin1, ATG5 and LC3-II showed the same trend. What's more, high expression at the mRNA level correlated with early Binet stage, isolated 13q deletion and negative CD38, which were associated with favor prognosis, suggesting that autophagy differs in CLL due to the presence of heterogeneity and high levels of these two genes may reflect better outcomes. Survival analysis did show patients with high expression of ATG5 mRNA had longer treatment free survival from the date of sampling. PMID- 29346067 TI - The association between child maltreatment and adult poverty - A systematic review of longitudinal research. AB - Child maltreatment is a global problem affecting millions of children and is associated with an array of cumulative negative outcomes later in life, including unemployment and financial difficulties. Although establishing child maltreatment as a causal mechanism for adult economic outcomes is fraught with difficulty, understanding the relationship between the two is essential to reducing such inequality. This paper presents findings from a systematic review of longitudinal research examining experiences of child maltreatment and economic outcomes in adulthood. A systematic search of seven databases found twelve eligible retrospective and prospective cohort studies. From the available evidence, there was a relatively clear relationship between 'child maltreatment' and poorer economic outcomes such as reduced income, unemployment, lower level of job skill and fewer assets, over and above the influence of family of origin socio-economic status. Despite an extremely limited evidence base, neglect had a consistent relationship with a number of long-term economic outcomes, while physical abuse has a more consistent relationship with income and employment. Studies examining sexual abuse found less of an association with income and employment, although they did find a relationship other outcomes such as sickness absence, assets, welfare receipt and financial insecurity. Nonetheless, all twelve studies showed some association between at least one maltreatment type and at least one economic measure. The task for future research is to clarify the relationship between specific maltreatment types and specific economic outcomes, taking account of how this may be influenced by gender and life course stage. PMID- 29346068 TI - Prevalence of hypertension and prehypertension among a coastal population in south India: baseline findings from a population-based health registry project in Kerala. PMID- 29346069 TI - The prevalence and influencing factors for child neglect in a rural area of Anhui province: a 2-year follow-up study. AB - OBJECTIVES: The purpose of the current study was to identify the change of prevalence and influencing factors for child neglect in a rural area of Anhui province through the 2-year follow-up study. STUDY DESIGN: Longitudinal study with 2-year follow-up. METHODS: Analyses were based on data from a longitudinal study, performed in five elementary schools and three secondary schools in Changfeng County. A total of 816 children aged between 7 and 16 years completed the three assessments during the period of 2009-2011. Generalized estimating equations (GEEs) were applied to identify the influencing factors of child neglect. RESULTS: The prevalence of child neglect was 67.8%, 56.6%, and 57.7% at the three assessments, respectively. There were 272 children (33.3%) having consistently experiencing neglect during three assessments and 106 (13.0%) children had not suffered from neglect during three assessments. Among 553 participants who experienced neglect at the first assessment, 105 (19.0%) children no longer met the diagnosis at the next two assessments. Fifty-two children who did not suffer from neglect at the first assessment experienced neglect at the final assessment. The results of GEEs showed that child neglect was clearly associated with age (odds ratio [OR] = 0.95, 95% confidence interval [CI] = 0.92-0.99, P = 0.016), male gender (OR = 1.20, 95% CI = 1.00-1.43, P = 0.047), siblings (OR = 1.26, 95% CI = 1.03-1.55, P = 0.028), parental marital disruption (OR = 2.02, 95% CI = 1.09-3.78, P = 0.027), left-behind status (OR = 1.26, 95% CI = 1.06-1.49, P = 0.008), severe family dysfunction (OR = 1.46, 95% CI = 1.03-2.07, P = 0.035), quality of life (OR = 0.98, 95% CI = 0.98-0.99, P < 0.001), positive coping styles (OR = 0.97, 95% CI = 0.94-0.99, P = 0.001), and negative coping styles (OR = 1.03, 95% CI = 1.02-1.05, P < 0.001). CONCLUSION: Our studies detected the decreased prevalence of child neglect across the three assessments. Additionally, some sociodemographic, psychosocial and family risk factors of child neglect were identified, which will be helpful for child neglect prevention strategies development and implementation in China. PMID- 29346070 TI - Key pharmacovigilance stakeholders' experiences of direct patient reporting of adverse drug reactions and their prospects of future development in the European Union. AB - OBJECTIVES: In the European Union (EU), legislation allows patients to directly report adverse drug reactions (ADRs) to competent authorities. Five years after its implementation, patient reporting is not equal in all countries. This study aimed to explore key stakeholders' perceptions of patient reporting in four EU countries. STUDY DESIGN: Qualitative study design. METHODS: Twelve representatives from national pharmacovigilance centres and/or authorities as well as national pharmaceutical industry bodies in four EU countries participated in the study. Supranational organizations were also included. Data collection was via face-semi-structured interviews. Inductive content analysis was performed thereafter, applying principles of risk management as a theoretical framework. RESULTS: Four themes (attitudes and beliefs, system maturation factors, regulatory improvements, and cultural shifts) emerged, conceptually interconnected. Participants from countries introducing patient reporting recently expressed a negative attitude. Participants highlighted the need for additional resources, both human and financial, to address patient reporting and associated advantages. CONCLUSIONS: The findings identified perceived barriers and facilitators of patient reporting. The involvement of patients, use of information, and dissemination of patient reporting are far from optimal. A better integration of the work by EU regulatory authorities is recommended. PMID- 29346071 TI - Identification of potential inhibitors against nuclear Dam1 complex subunit Ask1 of Candida albicans using virtual screening and MD simulations. AB - Identification of hit compounds against specific target form the starting point for a drug discovery program. A consistent decline of new chemical entities (NCEs) in recent years prompted a challenge to explore newer approaches to discover potential hit compounds that in turn can be converted into leads, and ultimately drug with desired therapeutic efficacy. The vast amount of omics and activity data available in public databases offers an opportunity to identify novel targets and their potential inhibitors. State of the art in silico methods viz., clustering of compounds, virtual screening, molecular docking, MD simulations and MMPBSA calculations were employed in a pipeline to identify potential 'hits' against those targets as well whose structures, as of now, could only predict through threading approaches. In the present work, we have started from scratch, amino acid sequence of target and compounds retrieved from PubChem compound database, modeled it in such a way that led to the identification of possible inhibitors of Dam1 complex subunit Ask1 of Candida albicans. We also propose a ligand based binding site determination approach. We have identified potential inhibitors of Ask1 subunit of a Dam1 complex of C. albicans, which is required to prevent precocious spindle elongation in pre-mitotic phases. The proposed scheme may aid to find virtually potential inhibitors of other unique targets against candida. PMID- 29346072 TI - Synthesis, biological evaluation and molecular docking studies of novel benzimidazole derivatives. AB - A novel series of N-substituted-benzimidazolyl linked para substituted benzylidene based molecules containing three pharmacologically potent hydrogen bonding parts namely; 2,4-thiazolidinedione (TZD: a 2,4-dicarbonyl), diethyl malonate (DEM: a 1,3-diester and an isooxazolidinedione analog) and methyl acetoacetate (MAA: a beta-ketoester) (6a-11b) were synthesized and evaluated for in vitro alpha-glucosidase inhibition. The structure of the novel synthesized compounds was confirmed through the spectral studies (LC-MS, 1H NMR, 13C NMR, FT IR). Comparative evaluation of these compounds revealed that the compound 9b showed maximum inhibitory potential against alpha-amylase and alpha-glucosidase giving an IC50 value of 0.54 +/- 0.01 MUM. Furthermore, binding affinities in terms of G score values and hydrogen bond interactions between all the synthesized compounds and the AA residues in the active site of the protein (PDB code: 3TOP) to that of Acarbose (standard drug) were explored with the help of molecular docking studies. Compound 9b was considered as promising candidate of this series. PMID- 29346073 TI - Extensive conservation of prokaryotic ribosomal binding sites in known and novel picobirnaviruses. AB - Currently, the Leviviridae and Cystoviridae are the only two recognized families of prokaryotic RNA viruses. Picobirnaviruses, which are bisegmented double stranded RNA viruses commonly found in animal stool samples, are currently thought to be animal viruses, but have not been propagated in cell culture or in an animal model. We hypothesize that picobirnaviruses are prokaryotic RNA viruses. We identified and analyzed the genomes of 38 novel picobirnaviruses and determined that a classical bacterial sequence motif, the ribosomal binding site (RBS), is present in the 5' untranslated regions (5' UTRs) of all of the novel as well as all previously published picobirnavirus sequences. Among all viruses, enrichment of the RBS motif is only observed in viral families that infect prokaryotes and not in eukaryotic infecting viral families. These results will enable future studies to more accurately understand the biology of picobirnaviruses. PMID- 29346074 TI - A partial deletion within foot-and-mouth disease virus non-structural protein 3A causes clinical attenuation in cattle but does not prevent subclinical infection. AB - Deletions within the 3A coding region of foot-and-mouth disease virus (FMDV) are associated with decreased virulence in cattle; however, the mechanisms are unknown. We compared experimental infection of cattle with virulent FMDV O1Campos (O1Ca) and a mutant derivative (O1Ca?3A) lacking residues 87-106 of 3A. Unexpectedly, primary infection of the nasopharyngeal mucosa was similar for both viruses. However, while O1Ca caused viremia and fulminant clinical disease, O1Ca?3A infection was subclinical and aviremic. There were no differences in expression of anti-viral cytokines in nasopharyngeal tissues between the groups, suggesting attenuation by O1Ca?3A was a consequence of reduced replication efficiency in bovine cells, rather than a difference in the host response. These results demonstrated that although deletion in 3A of FMDV confers a clinically attenuated phenotype in cattle, the deletion does not prevent subclinical infection. These findings have implications for field scenarios involving outbreaks with apparently host-limited strains of FMDV. PMID- 29346076 TI - Ultrasensitive electrochemical immuno-sensing platform based on gold nanoparticles triggering chlorpyrifos detection in fruits and vegetables. AB - Chlorpyrifos (chl) is an organophosphate pesticide extensively used in agriculture and highly toxic for human health. Fluorine doped tin-oxide (FTO) based electrochemical nanosensor was developed for chlorpyrifos detection with gold nanoparticles (AuNPs) and anti-chlorpyrifos antibodies (chl-Ab). AuNPs provides high electrical conductivity and specific resistivity, thus increases the sensitivity of immunoassay. High electrical conductivity of AuNPs reveals that it promotes the redox reaction for better cyclic voltammetry. Based on the intrinsic conductive properties of FTO-AuNPs complex, chl-Ab was immobilized onto AuNPs surface. Under optimized conditions, the proposed FTO based nanosensor exhibited high sensitivity and stable response for the detection of chlorpyrifos, ranging from 1fM to 1uM with limit of detection (LOD) up to 10fM. The FTO-AuNPs sensor was successfully employed for the detection of chlorpyrifos in standard as well in real samples up to 10nM for apple and cabbage, 50nM for pomegranate. The proposed FTO-AuNPs nanosensor can be used as a quantitative tool for rapid, on site detection of chlorpyrifos traces in real samples when miniaturized due to its excellent stability, sensitivity, and simplicity. PMID- 29346075 TI - Human Papillomavirus E6 interaction with cellular PDZ domain proteins modulates YAP nuclear localization. AB - HPV E6 oncoproteins associate with cellular PDZ proteins. In addition to previously identified cellular PDZ proteins, we found association of the HPV16 E6 PBM with the Dystrophin Glycoprotein Complex, LRCC1, and SLC9A3R2. HPV18 E6 had additional associations when lysates from adenomatous cell lines were used including LRPPRC, RLGAPB, EIF3A, SMC2 and 3, AMOT, AMOTL1, and ARHGEF1; some of these cellular PDZ proteins are implicated in the regulation of the YAP1 transcriptional co-activator. In keratinocytes, nuclear translocation of YAP1 was promoted by the complete HPV-16 genome, or by expression of the individual E6 or E7 oncoproteins; the activity of E6 required an intact PBM at the carboxy terminus. This work demonstrates that E6 association with cellular PDZ proteins promotes the nuclear localization of YAP1. The ability of E6 to promote the nuclear transport of YAP1 thus identifies an E6 activity that could contribute to the transformation of cells by E6. PMID- 29346077 TI - Three-dimensional graphene biointerface with extremely high sensitivity to single cancer cell monitoring. AB - We developed a three-dimensional biointerface of graphene-based electrical impedance sensor for metastatic cancer diagnosis at single-cell resolution. Compared with traditional impedance sensor with two-dimensional interface, the graphene biointerface mimiced the topography and somatotype features of cancer cells, achieving more comprehensive and thorough single cell signals in the three dimensional space. At the nodes of physiological behavior change of single cell, namely cell capture, adhesion, migration and proliferation, the collected electrical signals from graphene biointerface were about two times stronger than those from the two-dimensional gold interface due to the substantial increase in contact area and significant improvement of topographical interaction between cells and graphene electrode. Simultaneous CCD recording and electrical signal extraction from the entrapped single cell on the graphene biointerface enabled to investigate multidimensional cell-electrode interactions and predict cancerous stage and pathology. PMID- 29346078 TI - Long-term high air pollution exposure induced metabolic adaptations in traffic policemen. AB - OBJECTIVE: To assess the adverse physiological changes induced by long-term exposure to PM2.5. METHODS: Totally 183 traffic policemen and 88 office policemen as the control group, were enrolled in this study. The concentrations of PM2.5 in both the working places of traffic and office policemen were obtained. Detailed personal questionnaires and conventional laboratory tests including hematology, fasting blood glucose, blood lipids, liver, kidney, immunity and tumor-related markers were conducted on all participants of this study. RESULTS: A dose response relationship between the FBG, HDL-c and CEA values and the PM2.5 exposure duration was observed. Multivariate analysis confirmed that one hour on duty outdoor per day for one year was associated with an increase in FBG of 0.005% (95% CI: 0.0004% to 0.009%), CEA of 0.012% (95% CI: 0.006% to 0.017%), and a decrease in HDL-C of 0.001% (95% CI: 0.00034% to 0.002%). CONCLUSION: Long-term high air pollution exposure may lead to metabolism adaptation and it is likely involved in the development of cardiovascular disease and diabetes mellitus. PMID- 29346079 TI - A recognition mechanism study: Luminescent metal-organic framework for the detection of nitro-explosives. AB - This article presents a recognition mechanism for nitro-explosives by the luminescent metal-organic framework 1 (LMOF-1) with the aid of density functional theory (DFT) and time-dependent density functional theory (TDDFT). The behavior of hydrogen bonding between the LMOF-1 and nitro-explosives in the S1 state is closely associated with the fluorescence properties of the LMOF-1. In our research, we calculated the geometric configuration, 1H NMR and IR spectra of the Complex 2 formed by LMOF-1 and nitrobenzene in the S0 and S1 states. The results showed that the hydrogen bond in the S1 state was increased, which was unfavorable for the luminescence of LMOF-1. Furthermore, the fluorescence rate of LMOF-1 decreased after encapsulating nitrobenzene into it. These calculated results collectively suggest that LMOF-1 is a potential fluorescence sensor for the detection of nitro-explosives. This research was aiming to provide a better understanding of the recognition mechanism by LMOFs for nitro-explosives. PMID- 29346080 TI - New insight into the action of tryptanthrins against Plasmodium falciparum: Pharmacophore identification via a novel submolecular QSAR descriptor. AB - A new submolecular quantitative structure activity relationship (QSAR) descriptor was applied toward elucidating the anti-malarial pharmacophore of tryptanthrins, a class of compounds known for their anti-parasitic activities. The new descriptor is based on experimental and computational measurements of the tunneling barriers of individual lobes of the molecular orbitals. Lobe-by-lobe QSAR correlation plots revealed a single lobe of the LUMO to be strongly associated with tryptanthrin's anti-malarial activity. The correlation also showed a threshold behavior wherein barriers below a particular value show low IC50 values. Above the threshold, the correlation of IC50 vs the logarithm of the barrier is linear with R2 = 0.999. This barrier threshold may be applied as a design criterion for future tryptanthrin-based anti-malarial lead optimization. The new descriptor may be broadly applicable toward other molecular systems of interest, such as catalysts, pesticides, and herbicides. The authors have named the new descriptor: submolecular tunneling analysis of barriers (STAB). PMID- 29346081 TI - Reported balance confidence and movement reinvestment of younger knee replacement patients are more like younger healthy individuals, than older patients. AB - This study focused on differences between the rapidly growing younger (<65 years old) and older (>65 years old) total knee replacement (TKR) patients for measures of balance confidence, movement reinvestment, and functional mobility. Fifty-nine participants, including twenty-nine primary unilateral TKR patients (six months post-TKR) formed the four experimental groups: 1) Younger TKR Patient (YP), 2) Younger Control (YC), 3) Older TKR Patient (OP), and 4) Older Control (OC). The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), the Oxford Knee Score (OKS), Activities-specific Balance Confidence scale (ABC), the Movement-Specific Reinvestment Scale (MSRS), and the Timed Up and Go (TUG) test were measured. The YP group reported a significantly lower WOMAC score (p < 0.001), and higher perceived knee joint function (p = 0.001), compared to the OP group. The YP group also reported significantly higher balance confidence (p < 0.001) and less movement reinvestment (p = 0.001) than the OP group. TUG durations revealed that the YP group had significantly higher functional mobility compared to the OP group (p = 0.001). The YP group did not differ from the YC group across any of these measures (p > 0.05). These results identify a clear distinction between younger and older TKR patients for fall risk and TKR outcome, which argues that age should be a factor clinicians take into account when addressing the management and care of individuals recovering from TKR. PMID- 29346082 TI - Distal upper limb kinematics during functional everyday tasks. AB - Quantitative characterisation of upper limb motion allows the evaluation of the effect of pathology on functional task performance, potentially directing rehabilitation strategies. Movement patterns of the distal upper limb in healthy adults during functional tasks have not been extensively characterised. During five loaded functional tasks (drinking from a glass, pouring from a kettle, turning a handle, lifting a bag to a shelf, turning a key) the movement patterns were characterised using three-dimensional motion analysis with a minimal marker set in 16 healthy adults (10 M,6F, 27 (IQR:25-43)years). Joint angles reported include flexion/extension at the elbow and wrist, forearm supination/pronation and digits 2-5 metacarpophalangeal (MCP) joint flexion/extension. Additionally for the thumb the angle between the metacarpal of the thumb and the 2nd digit (Thumb base), the thumb MCP (Thumb MCP) and interphalangeal (Thumb IP) joint angles are presented. Durations of activities performed at self-selected comfortable speeds (3.36 (IQR:3.07,3.66)s turning a key to 6.20 (IQR:5.44,6.38)s drinking from a glass) are reported. The maximum joint angles used (median of participants' maxima) were 141 degrees of elbow flexion, 116 degrees forearm supination, 36 degrees wrist extension, 56 degrees Thumb base, 14 degrees Thumb MCP flexion, 18 degrees Thumb IP flexion, 85 degrees MCP2-5 flexion. The tasks of drinking from a glass, lifting a bag to a shelf and turning a key appeared to have the least variation in performance, suggesting that these activities are better suited to be selected as standardized tasks for assessing the impact of pathology on movement than pouring from a kettle and turning a handle. PMID- 29346083 TI - Testing the cognitive catalyst model of rumination with explicit and implicit cognitive content. AB - BACKGROUND AND OBJECTIVES: The cognitive catalyst model posits that rumination and negative cognitive content, such as negative schema, interact to predict depressive affect. Past research has found support for this model using explicit measures of negative cognitive content such as self-report measures of trait self esteem and dysfunctional attitudes. The present study tested whether these findings would extend to implicit measures of negative cognitive content such as implicit self-esteem, and whether effects would depend on initial mood state and history of depression. METHOD: Sixty-one undergraduate students selected on the basis of depression history (27 previously depressed; 34 never depressed) completed explicit and implicit measures of negative cognitive content prior to random assignment to a rumination induction followed by a distraction induction or vice versa. Dysphoric affect was measured both before and after these inductions. RESULTS: Analyses revealed that explicit measures, but not implicit measures, interacted with rumination to predict change in dysphoric affect, and these interactions were further moderated by baseline levels of dysphoria. LIMITATIONS: Limitations include the small nonclinical sample and use of a self report measure of depression history. CONCLUSIONS: These findings suggest that rumination amplifies the association between explicit negative cognitive content and depressive affect primarily among people who are already experiencing sad mood. PMID- 29346084 TI - Effects of the road environment on the development of driver sleepiness in young male drivers. AB - Latent driver sleepiness may in some cases be masked by for example social interaction, stress and physical activity. This short-term modulation of sleepiness may also result from environmental factors, such as when driving in stimulating environments. The aim of this study is to compare two road environments and investigate how they affect driver sleepiness. Thirty young male drivers participated in a driving simulator experiment where they drove two scenarios: a rural environment with winding roads and low traffic density, and a suburban road with higher traffic density and a more built-up roadside environment. The driving task was essentially the same in both scenarios, i.e. to stay on the road, without much interaction with other road users. A 2 * 2 design, with the conditions rural versus suburban, and daytime (full sleep) versus night time (sleep deprived), was used. The results show that there were only minor effects of the road environment on subjective and physiological indicators of sleepiness. In contrast, there was an increase in subjective sleepiness, longer blink durations and increased EEG alpha content, both due to time on task and to night-time driving. The two road environments differed both in terms of the demand on driver action and of visual load, and the results indicate that action demand is the more important of the two factors. The notion that driver fatigue should be countered in a more stimulating visual environment such as in the city is thus more likely due to increased task demand rather than to a richer visual scenery. This should be investigated in further studies. PMID- 29346085 TI - Performance of the BioPlex 2200 HIV Ag-Ab assay for identifying acute HIV infection. AB - BACKGROUND: Assays that detect HIV antigen (Ag) and antibody (Ab) can be used to screen for HIV infection. OBJECTIVES: To compare the performance of the BioPlex 2200 HIV Ag-Ab assay and two other Ag/Ab combination assays for detection of acute HIV infection. STUDY DESIGN: Samples were obtained from 24 individuals (18 from the US, 6 from South Africa); these individuals were classified as having acute infection based on the following criteria: positive qualitative RNA assay; two negative rapid tests; negative discriminatory test. The samples were tested with the BioPlex assay, the ARCHITECT HIV Ag/Ab Combo test, the Bio-Rad GS HIV Combo Ag-Ab EIA test, and a viral load assay. RESULTS: Twelve (50.0%) of 24 samples had RNA detected only ( > 40 to 13,476 copies/mL). Ten (43.5%) samples had reactive results with all three Ag/Ab assays, one sample was reactive with the ARCHITECT and Bio-Rad assays, and one sample was reactive with the Bio-Rad and BioPlex assays. The 11 samples that were reactive with the BioPlex assay had viral loads from 83,010 to >750,000 copies/mL; 9/11 samples were classified as Ag positive/Ab negative by the BioPlex assay. CONCLUSIONS: Detection of acute HIV infection was similar for the BioPlex assay and two other Ag/Ab assays. All three tests were less sensitive than a qualitative RNA assay and only detected HIV Ag when the viral load was high. The BioPlex assay detected acute infection in about half of the cases, and identified most of those infections as Ag positive/Ab negative. PMID- 29346086 TI - The dynamics of a serum steroid profile after stimulation with intravenous ACTH. AB - BACKGROUND: Stimulation with intravenous adrenocorticotropic hormone (ACTH) is a widely used diagnostic procedure to characterize the adrenocortical function. Currently, the response of serum cortisol, mainly quantified by immunoassays, is the only established read-out of this test. By using liquid chromatography coupled with mass spectrometry (LC-MS/MS) simultaneous determination of several steroids that respond to ACTH stimulation is now possible. The aim of this study was to further characterize the typical effect of exogenous ACTH (250 mg) on a LC MS/MS-serum steroid profile. METHODS: A set of 36 paired samples (pre-/post-IV ACTH) was investigated (age range 22-58, 26 female and 10 male individuals). Serum steroid profiling was performed using a LC-MS/MS method covering cortisol, cortisone, corticosterone, 11-deoxycortisol, 17-OH-progesterone and 11 deoxycorticosterone. RESULTS: The concentrations of all measured steroids increased after stimulation with ACTH, except for cortisone. Serum corticosterone, 11-deoxycorticosterone and 11-deoxycortisol showed markedly more pronounced relative increases compared to cortisol. The strongest response was observed for corticosterone (15-fold median relative increase, compared to 1.4 fold median increase of cortisol). CONCLUSION: Serum steroid profiling using LC MS/MS after stimulation with IV ACTH demonstrates highly dynamic response patterns. Further studies should address in particular serum corticosterone as a potential novel marker of biochemical stress response. PMID- 29346087 TI - A "not-for-profit" regulatory model for legal recreational cannabis: Insights from the regulation of gaming machine gambling in New Zealand. AB - A dozen or more regulatory frameworks have been proposed for legal cannabis but many of the "not-for-profit" options have yet to be developed in any detail, reducing the likelihood they will be seriously considered by policy makers. New Zealand's innovative "not-for-profit" regulatory regime for gaming machine gambling (i.e. "slot machines") has reversed the previous increase in gambling expenditure, empowered local councils to cap the number of gambling venues, and is unique in requiring the societies operating gaming machines to distribution 40% of the gross expenditure from machines (i.e. $NZ 262 million in 2015) to community purposes (e.g. sports). However, the regime has been criticised for not addressing the concentration of gaming outlets in poorer communities, and not requiring grants to be allocated in the disadvantaged communities where outlets are located. There have also been cases of gaming societies providing community grants in exchange for direct or indirect benefits. In this paper we adapt this regulatory approach to a legal cannabis market. Under the proposed regime, licensed "not-for-profit" cannabis societies will be required to distribute 20% of cannabis sales to drug treatment and 20% to community purposes, including drug prevention. Grants must be allocated in the regions where cannabis sales are made and grant committees must be independent from cannabis societies. A 20% levy will be used to cover the wider health costs of cannabis use. A further 10% levy will be used to fund the regulator and evaluate the new regime. Local councils will have the power to decide how many, and where, cannabis retail outlets are located. Other important elements include a minimum price for cannabis, effective taxation of cannabis products, regulating CBD in cannabis products, higher taxation of traditional smoking products, advertising restricted to place-of sale, no internet sales, and restrictions on industry involvement in regulation making and research. PMID- 29346088 TI - Intense olfactory stimulation blocks seizures in an experimental model of epilepsy. AB - There are reports of patients whose epileptic seizures are prevented by means of olfactory stimulation. Similar findings were described in animal models of epilepsy, such as the electrical kindling of amygdala, where olfactory stimulation with toluene (TOL) suppressed seizures in most rats, even when the stimuli were 20% above the threshold to evoke seizures in already kindled animals. The Wistar Audiogenic Rat (WAR) strain is a model of tonic-clonic seizures induced by acute acoustic stimulation, although it also expresses limbic seizures when repeated acoustic stimulation occurs - a process known as audiogenic kindling (AK). The aim of this study was to evaluate whether or not the olfactory stimulation with TOL would interfere on the behavioral expression of brainstem (acute) and limbic (chronic) seizures in the WAR strain. For this, animals were exposed to TOL or saline (SAL) and subsequently exposed to acoustic stimulation in two conditions that generated: I) acute audiogenic seizures (only one acoustic stimulus, without previous seizure experience before of the odor test) and II) after AK (20 acoustic stimuli [2 daily] before of the protocol test). We observed a decrease in the seizure severity index of animals exposed only to TOL in both conditions, with TOL presented 20s before the acoustic stimulation in both protocols. These findings were confirmed by behavioral sequential analysis (neuroethology), which clearly indicated an exacerbation of clusters of specific behaviors such as exploration and grooming (self-cleaning), as well as significant decrease in the expression of brainstem and limbic seizures in response to TOL. Thus, these data demonstrate that TOL, a strong olfactory stimulus, has anticonvulsant properties, detected by the decrease of acute and AK seizures in WARs. PMID- 29346089 TI - Genererating a core cluster of Fasciola hepatica virulence and immunomodulation related genes using a comparative in silico approach. AB - A total of 71 virulence and immunomodulation-related transcripts (VIRs) of Fasciola hepatica have been previously proposed (Hacariz et al., 2015). In an attempt to further refine this cohort, an in silico meta analysis approach was carried out using publicly available sequence data of related liver flukes, Clonorchis sinensis and Opisthorchis viverrini. Data of both liver flukes were investigated in terms of sequential homology with data of non-parasitic organisms, pathogens and VIRs of F. hepatica, directional selection (Ka/Ks), and cytokine signaling relation (protein motif based). Some VIRs of F. hepatica [showing homology with immune receptors (for toll/interleukin-1, TGF-beta or TNF alpha), TGF-beta, TNF-alpha, CD147, or relation with suppressors of cytokine signaling/IKBKE 1 or stimulation of TGF-beta (through thrombospondin similarity)] were found to be orthologous with those of both C. sinensis and O. viverrini. The in silico analysis indicates that on the basis of genetic commonality, a total of 30 VIRs of F. hepatica are highlighted as of foremost importance in the parasite evasion strategy, through controlling of host immune system. Findings in this study could be important to further enhance our understanding of the parasitic mechanisms and develop effective control strategies against F. hepatica and other related parasites. PMID- 29346090 TI - Fast 2D Complex Gabor Filter With Kernel Decomposition. AB - 2D complex Gabor filtering has found numerous applications in the fields of computer vision and image processing. Especially, in some applications, it is often needed to compute 2D complex Gabor filter bank consisting of filtering outputs at multiple orientations and frequencies. Although several approaches for fast Gabor filtering have been proposed, they focus primarily on reducing the runtime for performing filtering once at specific orientation and frequency. To obtain the Gabor filter bank, the existing methods are repeatedly applied with respect to multiple orientations and frequencies. In this paper, we propose a novel approach that efficiently computes the 2D complex Gabor filter bank by reducing the computational redundancy that arises when performing filtering at multiple orientations and frequencies. The proposed method first decomposes the Gabor kernel to allow a fast convolution with the Gaussian kernel in a separable manner. This enables reducing the runtime of the Gabor filter bank by reusing intermediate results computed at a specific orientation. By extending this idea, we also propose a fast approach for 2D localized sliding discrete Fourier transform that uses the Gaussian kernel in order to lend spatial localization ability as in the Gabor filter. Experimental results demonstrate that the proposed method runs faster than the state-of-the-art methods, while maintaining similar filtering quality. PMID- 29346091 TI - Plenoptic Image Motion Deblurring. AB - We propose a method to remove motion blur in a single light field captured with a moving plenoptic camera. Since motion is unknown, we resort to a blind deconvolution formulation, where one aims to identify both the blur point spread function and the latent sharp image. Even in the absence of motion, light field images captured by a plenoptic camera are affected by a non-trivial combination of both aliasing and defocus, which depends on the 3D geometry of the scene. Therefore, motion deblurring algorithms designed for standard cameras are not directly applicable. Moreover, many state of the art blind deconvolution algorithms are based on iterative schemes, where blurry images are synthesized through the imaging model. However, current imaging models for plenoptic images are impractical due to their high dimensionality. We observe that plenoptic cameras introduce periodic patterns that can be exploited to obtain highly parallelizable numerical schemes to synthesize images. These schemes allow extremely efficient GPU implementations that enable the use of iterative methods. We can then cast blind deconvolution of a blurry light field image as a regularized energy minimization to recover a sharp high-resolution scene texture and the camera motion. Furthermore, the proposed formulation can handle non uniform motion blur due to camera shake as demonstrated on both synthetic and real light field data. PMID- 29346092 TI - Hierarchical and Spatio-Temporal Sparse Representation for Human Action Recognition. AB - In this paper, we present a novel two-layer video representation for human action recognition employing hierarchical group sparse encoding technique and spatio temporal structure. In the first layer, a new sparse encoding method named locally consistent group sparse coding (LCGSC) is proposed to make full use of motion and appearance information of local features. LCGSC method not only encodes global layouts of features within the same video-level groups, but also captures local correlations between them, which obtains expressive sparse representations of video sequences. Meanwhile, two kinds of efficient location estimation models, namely an absolute location model and a relative location model, are developed to incorporate spatio-temporal structure into LCGSC representations. In the second layer, action-level group is established, where a hierarchical LCGSC encoding scheme is applied to describe videos at different levels of abstractions. On the one hand, the new layer captures higher order dependency between video sequences; on the other hand, it takes label information into consideration to improve discrimination of videos' representations. The superiorities of our hierarchical framework are demonstrated on several challenging datasets. PMID- 29346093 TI - Multipolarization Through-Wall Radar Imaging Using Low-Rank and Jointly-Sparse Representations. AB - Compressed sensing techniques have been applied to through-the-wall radar imaging (TWRI) and multipolarization TWRI for fast data acquisition and enhanced target localization. The studies so far in this area have either assumed effective wall clutter removal prior to image formation or performed signal estimation, wall clutter mitigation, and image formation independently. This paper proposes a low rank and sparse imaging model for jointly addressing the problem of wall clutter mitigation and image formation in multichannel TWRI. The proposed model exploits two important structures of through-wall radar signals: low-rank structure of the wall reflections and jointly-sparse structure among the different polarization images. The task of removing wall clutter and reconstructing multichannel images of the same scene behind-the-wall is formulated as a regularized least squares problem, where low-rank regularization is enforced for the wall components, and joint-sparsity penalty is imposed on channel images. To solve the optimization problem, an iterative algorithm based on the proximal gradient technique is introduced, which simultaneously estimates the wall interferences and yields multichannel images of the indoor targets. Experiments on real and simulated radar data are conducted under full measurements and compressive sensing scenarios. The results show that the proposed model is very effective at removing unwanted wall clutter and enhancing the stationary targets, even under considerable reduction in measurements. PMID- 29346094 TI - Reweighted Low-Rank Matrix Analysis With Structural Smoothness for Image Denoising. AB - In this paper, we develop a new low-rank matrix recovery algorithm for image denoising. We incorporate the total variation (TV) norm and the pixel range constraint into the existing reweighted low-rank matrix analysis to achieve structural smoothness and to significantly improve quality in the recovered image. Our proposed mathematical formulation of the low-rank matrix recovery problem combines the nuclear norm, TV norm, and norm, thereby allowing us to exploit the low-rank property of natural images, enhance the structural smoothness, and detect and remove large sparse noise. Using the iterative alternating direction and fast gradient projection methods, we develop an algorithm to solve the proposed challenging non-convex optimization problem. We conduct extensive performance evaluations on single-image denoising, hyper spectral image denoising, and video background modeling from corrupted images. Our experimental results demonstrate that the proposed method outperforms the state-of-the-art low-rank matrix recovery methods, particularly for large random noise. For example, when the density of random sparse noise is 30%, for single image denoising, our proposed method is able to improve the quality of the restored image by up to 4.21 dB over existing methods. PMID- 29346095 TI - Feature Map Quality Score Estimation Through Regression. AB - Understanding the visual quality of a feature map plays a significant role in many active vision applications. Previous works mostly rely on object-level features, such as compactness, to estimate the quality score of a feature map. However, the compactness is leveraged on feature maps produced by salient object detection techniques where the maps tend to be compact. As a result, the compactness feature fails when the feature maps are blurry (e.g., fixation maps). In this paper, we regard the process of estimating the quality score of feature maps, specifically fixation maps, as a regression problem. After extracting several local, global, geometric, and positional characteristic features from a feature map, a model is learned using a random forest regressor to estimate the quality score of any unseen feature map. Our model is specifically tailored to estimate the quality of three types of maps: bottom-up, target, and contextual feature maps. These maps are produced for a large benchmark fixation data set of more than 900 challenging outdoor images. We demonstrate that our approach provides an accurate estimate of the quality of the abovementioned feature maps compared to the groundtruth data. In addition, we show that our proposed approach is useful in feature map integration for predicting human fixation. Instead of naively integrating all three feature maps when predicting human fixation, our proposed approach dynamically selects the best feature map with the highest estimated quality score on an individual image basis, thereby improving the fixation prediction accuracy. PMID- 29346096 TI - Iterative Graph Seeking for Object Tracking. AB - To effectively solve the challenges in object tracking, such as large deformation and severe occlusion, many existing methods use graph-based models to capture target part relations, and adopt a sequential scheme of target part selection, part matching, and state estimation. However, such methods have two major drawbacks: 1) inaccurate part selection leads to performance deterioration of part matching and state estimation and 2) there are insufficient effective global constraints for local part selection and matching. In this paper, we propose a new object tracking method based on iterative graph seeking, which integrate target part selection, part matching, and state estimation using a unified energy minimization framework. Our method also incorporates structural information in local parts variations using the global constraint. We devise an alternative iteration scheme to minimize the energy function for searching the most plausible target geometric graph. Experimental results on several challenging benchmarks (i.e., VOT2015, OTB2013, and OTB2015) demonstrate improved performance and robustness in comparison with existing algorithms. PMID- 29346097 TI - Change Detection in Heterogenous Remote Sensing Images via Homogeneous Pixel Transformation. AB - The change detection in heterogeneous remote sensing images remains an important and open problem for damage assessment. We propose a new change detection method for heterogeneous images (i.e., SAR and optical images) based on homogeneous pixel transformation (HPT). HPT transfers one image from its original feature space (e.g., gray space) to another space (e.g., spectral space) in pixel-level to make the pre-event and post-event images represented in a common space for the convenience of change detection. HPT consists of two operations, i.e., the forward transformation and the backward transformation. In forward transformation, for each pixel of pre-event image in the first feature space, we will estimate its mapping pixel in the second space corresponding to post-event image based on the known unchanged pixels. A multi-value estimation method with noise tolerance is introduced to determine the mapping pixel using -nearest neighbors technique. Once the mapping pixels of pre-event image are available, the difference values between the mapping image and the post-event image can be directly calculated. After that, we will similarly do the backward transformation to associate the post-event image with the first space, and one more difference value for each pixel will be obtained. Then, the two difference values are combined to improve the robustness of detection with respect to the noise and heterogeneousness (modality difference) of images. Fuzzy-c means clustering algorithm is employed to divide the integrated difference values into two clusters: changed pixels and unchanged pixels. This detection results may contain some noisy regions (i.e., small error detections), and we develop a spatial neighbor-based noise filter to further reduce the false alarms and missing detections using belief functions theory. The experiments for change detection with real images (e.g., SPOT, ERS, and NDVI) during a flood in U.K. are given to validate the effectiveness of the proposed method. PMID- 29346098 TI - Region-Based Prediction for Image Compression in the Cloud. AB - Thanks to the increasing number of images stored in the cloud, external image similarities can be leveraged to efficiently compress images by exploiting inter images correlations. In this paper, we propose a novel image prediction scheme for cloud storage. Unlike current state-of-the-art methods, we use a semi-local approach to exploit inter-image correlation. The reference image is first segmented into multiple planar regions determined from matched local features and super-pixels. The geometric and photometric disparities between the matched regions of the reference image and the current image are then compensated. Finally, multiple references are generated from the estimated compensation models and organized in a pseudo-sequence to differentially encode the input image using classical video coding tools. Experimental results demonstrate that the proposed approach yields significant rate-distortion performance improvements compared with the current image inter-coding solutions such as high efficiency video coding. PMID- 29346099 TI - Cell Membrane Tracking in Living Brain Tissue Using Differential Interference Contrast Microscopy. AB - Differential interference contrast (DIC) microscopy is widely used for observing unstained biological samples that are otherwise optically transparent. Combining this optical technique with machine vision could enable the automation of many life science experiments; however, identifying relevant features under DIC is challenging. In particular, precise tracking of cell boundaries in a thick ( ) slice of tissue has not previously been accomplished. We present a novel deconvolution algorithm that achieves the state-of-the-art performance at identifying and tracking these membrane locations. Our proposed algorithm is formulated as a regularized least squares optimization that incorporates a filtering mechanism to handle organic tissue interference and a robust edge sparsity regularizer that integrates dynamic edge tracking capabilities. As a secondary contribution, this paper also describes new community infrastructure in the form of a MATLAB toolbox for accurately simulating DIC microscopy images of in vitro brain slices. Building on existing DIC optics modeling, our simulation framework additionally contributes an accurate representation of interference from organic tissue, neuronal cell-shapes, and tissue motion due to the action of the pipette. This simulator allows us to better understand the image statistics (to improve algorithms), as well as quantitatively test cell segmentation and tracking algorithms in scenarios, where ground truth data is fully known. PMID- 29346100 TI - Improving Color Constancy in an Ambient Light Environment Using the Phong Reflection Model. AB - We present a physics-based illumination estimation approach explicitly designed to handle natural images under ambient light. Existing physics-based color constancy methods are theoretically perfect but do not handle real-world images well because the majority of these methods assume a single illuminant. Therefore, specular pixels selected using existing methods produce estimated dichromatic lines that are thick or curvilinear in the presence of ambient light, thus generating significant errors. Based on the Phong reflection model, we show that a group of specular pixels on a uniformly colored object, although they are subject to intensity thresholding, produce a unique dichromatic line length depending on the geometry of each image path. Assuming that the longest dichromatic line is the most desirable when estimating the chromaticity of an illuminant, ambient-robust specular pixels are also found on the same path on which the longest dichromatic line segment is generated. Therefore, we propose a method to find the optimal image path in which the specular pixels produce the longest dichromatic line. Even though the number of collected specular pixels is reduced using the proposed method, they are proven to be more accurate when determining the illuminant chromaticity even in the existing methods. Experiments with an established benchmark data set and a self-produced image set find that the proposed method is better able to locate the illuminant chromaticity compared with the state-of-the-art color constancy methods. PMID- 29346101 TI - Stacked Denoising Tensor Auto-Encoder for Action Recognition With Spatiotemporal Corruptions. AB - Spatially or temporally corrupted action videos are impractical for recognition via vision or learning models. It usually happens when streaming data are captured from unintended moving cameras, which bring occlusion or camera vibration and accordingly result in arbitrary loss of spatiotemporal information. In reality, it is intractable to deal with both spatial and temporal corruptions at the same time. In this paper, we propose a coupled stacked denoising tensor auto-encoder (CSDTAE) model, which approaches this corruption problem in a divide and-conquer fashion by jointing both the spatial and temporal schemes together. In particular, each scheme is a SDTAE designed to handle either spatial or temporal corruption, respectively. SDTAE is composed of several blocks, each of which is a denoising tensor auto-encoder (DTAE). Therefore, CSDTAE is designed based on several DTAE building blocks to solve the spatiotemporal corruption problem simultaneously. In one DTAE, the video features are represented as a high order tensor to preserve the spatiotemporal structure of data, where the temporal and spatial information are processed separately in different hidden layers via tensor unfolding. In summary, DTAE explores the spatial and temporal structure of the tensor representation, and SDTAE handles different corrupted ratios progressively to extract more discriminative features. CSDTAE couples the temporal and spatial corruptions of the same data through a thorough step-by-step procedure based on canonical correlation analysis, which integrates the two sub problems into one problem. The key point is solving the spatiotemporal corruption in one model by considering them as noises in either spatial or temporal direction. Extensive experiments on three action data sets demonstrate the effectiveness of our model, especially when large volumes of corruption in the video. PMID- 29346102 TI - Impedance Measures During in vitro Cochlear Implantation Predict Array Positioning. AB - OBJECTIVE: Improper electrode placement during cochlear implant (CI) insertion can adversely affect speech perception outcomes. However, the intraoperative methods to determine positioning are limited. Because measures of electrode impedance can be made quickly, the goal of this study was to assess the relationship between CI impedance and proximity to adjacent structures. METHODS: An Advanced Bionics CI array was inserted into a clear, plastic cochlea one electrode contact at a time in a saline bath (nine trials). At each insertion depth, response to biphasic current pulses was used to calculate access resistance (Ra), polarization resistance (Rp), and polarization capacitance (Cp). These measures were correlated to actual proximity as assessed by microscopy using linear regression models. RESULTS: Impedance increased with insertion depth and proximity to the inner wall. Specifically, Ra increased, Cp decreased, and Rp slightly increased. Incorporating all impedance measures afforded a prediction model (r = 0.88) while optimizing for sub-mm positioning afforded a model with 78.3% specificity. CONCLUSION: Impedance in vitro greatly changes with electrode insertion depth and proximity to adjacent structures in a predicable manner. SIGNIFICANCE: Assessing proximity of the CI to adjacent structures is a significant first step in qualifying the electrode-neural interface. This information should aid in CI fitting, which should help maximize hearing and speech outcomes with a CI. Additionally, knowledge of the relationship between impedance and positioning could have utility in other tissue implants in the brain, retina, or spinal cord. PMID- 29346103 TI - WaveDec: A Wavelet Approach to Identify Both Shared and Individual Patterns of Copy-Number Variations. AB - : Copy-number variations (CNVs) are associated with complex diseases and particular tumor types. Array-based comparative genomic hybridization (aCGH) is a common approach for the detection of CNVs. Traditional CNV detection methods for multiple aCGH samples mainly use batch samples to find common variations, not accounting for the individual characteristics of each sample. Accurately differentiating both the commonly shared and the individual CNV patterns is pivotal to identify cell populations, or to distinguish cell growth (as in cancer) from invasion of new cells. Our preliminary results have now demonstrated that both the shared and individual CNV patterns have distinctive characteristics after wavelet transform. METHODS: To exploit these characteristics, we propose to formulate a quadratic data-separation problem within the wavelet space to discriminate the shared and individual CNVs from raw data. We have elaborated a numerical solution and shown that the solution can be obtained by solving decoupled subproblems. By this approach, computational costs can be limited, enabling efficient application in the analysis of large sequencing datasets. RESULTS: The advantages of our proposed method, called WaveDec, have been demonstrated by comparison with popular CNV-detection methods using synthetic and empirical aCGH data. The performance of WaveDec was further validated by experiments with single-cell-sequencing data. CONCLUSION: WaveDec can successfully differentiate shared and individual patterns, and performs well even in data contaminated with high levels of noise. SIGNIFICANCE: Both the shared and individual patterns can be uniquely characterized as well as effectively decomposed within the wavelet space. PMID- 29346104 TI - Characterization and Modeling of Tissue Thermal Conductivity During an Electrosurgical Joining Process. AB - Electrosurgical vessel joining is commonly performed in surgical procedures to maintain hemostasis. This process requires elevated temperature to denature the tissue and while compression is applied, the tissue can be joined together. The elevated temperature can cause thermal damages to the surrounding tissues. In order to minimize these damages, it is critical to understand how the tissue properties change and how that affects the thermal spread. The purpose of this study is to investigate the changes of tissue thermal conductivity and how the changes correlate to thermal dose during the joining process. We propose a hybrid method combining experimental measurement with inverse heat transfer analysis to determine thermal conductivity of thin tissue sample. Porcine aorta arterial tissues were used to investigate tissue thermal conductivity with variable thermal dose. Different joining times were used to create different amounts of thermal dose. A 36% decrease in tissue thermal conductivity was found when the thermal dose reaches the threshold for second-degree burn. When thermal dose is beyond the threshold of third-degree burn, the tissue thermal conductivity does not decrease significantly. A regression model was also developed and can be used to predict tissue thermal conductivity based on the thermal dose. PMID- 29346106 TI - Spatial Position Measurement System for Surgical Navigation Using 3-D Image Marker-Based Tracking Tools With Compact Volume. AB - We develop a spatial position measurement system using three-dimensional (3-D) image marker-based tracking tools targeted at surgical navigation in minimally invasive surgery. We generate 3-D image markers with spatial information encoded to 2-D images, design tracking tools with the 3-D image markers, and analyze the tracking tools' theoretical spatial errors, which are primarily limited by the spatial distribution of reconstructed fiducial 3-D markers. A pattern analysis based positional measurement algorithm is developed to calculate the tool's spatial information using its spatial configuration. Evaluation experiments were conducted to demonstrate the accuracy and effectiveness of the proposed system. Furthermore, surgical navigation feasibility studies were performed. With a patient-image registration algorithm, a navigation interface that shows preoperative medical data and intraoperative information about the tool can intuitively and accurately assist surgeons. The results demonstrate that the proposed tracking tools, which have compact volume and spatial positional information, are of potential use in minimally invasive surgery in a limited space. PMID- 29346105 TI - Automated Detection of Postictal Generalized EEG Suppression. AB - Although there is no strict consensus, some studies have reported that Postictal generalized EEG suppression (PGES) is a potential electroencephalographic (EEG) biomarker for risk of sudden unexpected death in epilepsy (SUDEP). PGES is an epoch of EEG inactivity after a seizure, and the detection of PGES in clinical data is extremely difficult due to artifacts from breathing, movement and muscle activity that can adversely affect the quality of the recorded EEG data. Even clinical experts visually interpreting the EEG will have diverse opinions on the start and end of PGES for a given patient. The development of an automated EEG suppression detection tool can assist clinical personnel in the review and annotation of seizure files, and can also provide a standard for quantifying PGES in large patient cohorts, possibly leading to further clarification of the role of PGES as a biomarker of SUDEP risk. In this paper, we develop an automated system that can detect the start and end of PGES using frequency domain features in combination with boosting classification algorithms. The average power for different frequency ranges of EEG signals are extracted from the prefiltered recorded signal using the fast fourier transform and are used as the feature set for the classification algorithm. The underlying classifiers for the boosting algorithm are linear classifiers using a logistic regression model. The tool is developed using 12 seizures annotated by an expert then tested and evaluated on another 20 seizures that were annotated by 11 experts. PMID- 29346107 TI - Brain MR Image Restoration Using an Automatic Trilateral Filter With GPU-Based Acceleration. AB - OBJECTIVE: Noise reduction in brain magnetic resonance (MR) images has been a challenging and demanding task. This study develops a new trilateral filter that aims to achieve robust and efficient image restoration. METHODS: Extended from the bilateral filter, the proposed algorithm contains one additional intensity similarity funct-ion, which compensates for the unique characteristics of noise in brain MR images. An entropy function adaptive to intensity variations is introduced to regulate the contributions of the weighting components. To hasten the computation, parallel computing based on the graphics processing unit (GPU) strategy is explored with emphasis on memory allocations and thread distributions. To automate the filtration, image texture feature analysis associated with machine learning is investigated. Among the 98 candidate features, the sequential forward floating selection scheme is employed to acquire the optimal texture features for regularization. Subsequently, a two-stage classifier that consists of support vector machines and artificial neural networks is established to predict the filter parameters for automation. RESULTS: A speedup gain of 757 was reached to process an entire MR image volume of 256 * 256 * 256 pixels, which completed within 0.5 s. Automatic restoration results revealed high accuracy with an ensemble average relative error of 0.53 +/- 0.85% in terms of the peak signal-to-noise ratio. CONCLUSION: This self-regulating trilateral filter outperformed many state-of-the-art noise reduction methods both qualitatively and quantitatively. SIGNIFICANCE: We believe that this new image restoration algorithm is of potential in many brain MR image processing applications that require expedition and automation. PMID- 29346108 TI - Modeling of Electroporation Induced by Pulsed Electric Fields in Irregularly Shaped Cells. AB - During the past decades, the poration of cell membrane induced by pulsed electric fields has been widely investigated. Since the basic mechanisms of this process have not yet been fully clarified, many research activities are focused on the development of suitable theoretical and numerical models. To this end, a nonlinear, nonlocal, dispersive, and space-time numerical algorithm has been developed and adopted to evaluate the transmembrane voltage and pore density along the perimeter of realistic irregularly shaped cells. The presented model is based on the Maxwell's equations and the asymptotic Smoluchowski's equation describing the pore dynamics. The dielectric dispersion of the media forming the cell has been modeled by using a general multirelaxation Debye-based formulation. The irregular shape of the cell is described by using the Gielis' superformula. Different test cases pertaining to red blood cells, muscular cells, cell in mitosis phase, and cancer-like cell have been investigated. For each type of cell, the influence of the relevant shape, the dielectric properties, and the external electric pulse characteristics on the electroporation process has been analyzed. The numerical results demonstrate that the proposed model is an efficient numerical tool to study the electroporation problem in arbitrary-shaped cells. PMID- 29346109 TI - Endocardial Energy Harvesting by Electromagnetic Induction. AB - OBJECTIVE: cardiac pacemakers require regular medical follow-ups to ensure proper functioning. However, device replacements due to battery depletion are common and account for ~25% of all implantation procedures. Furthermore, conventional pacemakers require pacemaker leads which are prone to fractures, dislocations or isolation defects. The ensuing surgical interventions increase risks for the patients and costs that need to be avoided. METHODS: in this study, we present a method to harvest energy from endocardial heart motions. We developed a novel generator, which converts the heart's mechanical into electrical energy by electromagnetic induction. A mathematical model has been introduced to identify design parameters strongly related to the energy conversion efficiency of heart motions and fit the geometrical constraints for a miniaturized transcatheter deployable device. The implemented final design was tested on the bench and in vivo. RESULTS: the mathematical model proved an accurate method to estimate the harvested energy. For three previously recorded heart motions, the model predicted a mean output power of 14.5, 41.9, and 16.9 MUW. During an animal experiment, the implanted device harvested a mean output power of 0.78 and 1.7 MUW at a heart rate of 84 and 160 bpm, respectively. CONCLUSION: harvesting kinetic energy from endocardial motions seems feasible. Implanted at an energetically favorable location, such systems might become a welcome alternative to extend the lifetime of cardiac implantable electronic device. SIGNIFICANCE: the presented endocardial energy harvesting concept has the potential to turn pacemakers into battery- and leadless systems and thereby eliminate two major drawbacks of contemporary systems. PMID- 29346110 TI - A Three-Dimensional Arrayed Microfluidic Blood-Brain Barrier Model With Integrated Electrical Sensor Array. AB - OBJECTIVE: The blood-brain barrier (BBB) poses a unique challenge to the development of therapeutics against neurological disorders due to its impermeabi lity to most of the chemical compounds. Most in vitro BBB models have limitations in mimicking in vivo conditions and functions. Here, we show a co-culture microfluidic BBB-on-a-chip that provides interactions between neurovascular endothelial cells and neuronal cells across a porous polycarbonate membrane, which better mimics the in vivo conditions, as well as allows in vivo level shear stress to be applied. METHODS: A 4 * 4 intersecting microchannel array forms 16 BBB sites on a chip, with a multielectrode array integrated to measure the transendothelial electrical resistance (TEER) from all 16 different sites, which allows label-free real-time analysis of the barrier function. Primary mouse endothelial cells and primary astrocytes were co-cultured in the chip while applying in vivo level shear stress. The chip allows the barrier function to be analyzed through TEER measurement, dextran permeability, as well as immunostaining. RESULTS: Co-culture between astrocytes and endothelial cells, as well as in vivo level shear stress applied, led to the formation of tighter junctions and significantly lower barrier permeability. Moreover, drug testing with histamine showed increased permeability when using only endothelial cells compared to almost no change when using co-culture. CONCLUSION: Results show that the developed BBB chip more closely mimics the in vivo BBB environment. SIGNIFICANCE: The developed multisite BBB chip is expected to be used for screening drug by more accurately predicting their permeability through BBB as well as their toxicity. PMID- 29346111 TI - Single-Scan High-Resolution 2-D $J$ -Resolved Spectroscopy in Inhomogeneous Magnetic Fields. AB - OBJECTIVE: A method is proposed to obtain high-resolution 2-D -resolved nuclear magnetic resonance (NMR) spectra in inhomogeneous magnetic fields. METHODS: The proposed experiment enables the acquisition of an entire 2-D spectrum in a single scan by utilizing intermolecular double-quantum coherences and the spatial encoding of NMR observables. RESULTS: Chemical shifts, coupling constants, and multiplet patterns are recovered even when field inhomogeneities are severe enough to completely obscure conventional NMR spectra. After intentional deshimming to yield inhomogeneous magnetic fields, the method was demonstrated on ethyl 3-bromoproprionate in acetone and on a complex mixture of organic compounds. To illustrate the technique's applicability to biological samples with intrinsic magnetic field inhomogeneities arising from macroscopic magnetic susceptibility variations, we performed the experiment on a pig bone marrow sample. CONCLUSION: Our results show that the new method is a fast and effective tool for studying complex chemical mixtures and biological tissues. SIGNIFICANCE: The method could potentially be useful for real-time in vivo NMR studies. PMID- 29346112 TI - Numerical Model Reduction for the Prediction of Interface Pressure Applied by Compression Bandages on the Lower Leg. AB - OBJECTIVE: To develop a new method for the prediction of interface pressure applied by medical compression bandages. METHODS: A finite element simulation of bandage application was designed, based on patient-specific leg geometries. For personalized interface pressure prediction, a model reduction approach was proposed, which included the parametrization of the leg geometry. Pressure values computed with this reduced model were then confronted to experimental pressure values. RESULTS: The most influencing parameters were found to be the bandage tension, the skin-to-bandage friction coefficient and the leg morphology. Thanks to the model reduction approach, it was possible to compute interface pressure as a linear combination of these parameters. The pressures computed with this reduced model were in agreement with experimental pressure values measured on 66 patients' legs. CONCLUSION: This methodology helps to predict patient-specific interface pressure applied by compression bandages within a few minutes whereas it would take a few days for the numerical simulation. The results of this method show less bias than Laplace's Law, which is for now the only other method for interface pressure computation. PMID- 29346113 TI - Uncertainty in Limb Configuration Makes Minimal Contribution to Errors Between Observed and Predicted Forces in a Musculoskeletal Model of the Rat Hindlimb. AB - Subject-specific musculoskeletal models are increasingly used in biomedical applications to predict endpoint forces due to muscle activation, matching predicted forces to experimentally observed forces at a specific limb configuration. However, it is difficult to precisely measure the limb configuration at which these forces are observed. The consequent uncertainty in limb configuration might contribute to errors in model predictions. We therefore evaluated how uncertainties in limb configuration measurement contributed to errors in force prediction, using data from in vivo measurements in the rat hindlimb. We used a data-driven approach to estimate the uncertainty in estimated limb configuration and then used this configuration uncertainty to evaluate the consequent uncertainty in force predictions, using Monte Carlo simulations. We used subject-specific models of joint structures (i.e., centers and axes of rotation) in order to estimate limb configurations for each animal. The standard deviation of the distribution of predicted force directions resulting from configuration uncertainty was small, ranging between 0.27 degrees and 3.05 degrees across muscles. For most muscles, this standard deviation was considerably smaller than the error between observed and predicted forces (between 0.57 degrees and 70.96 degrees ), suggesting that uncertainty in limb configuration could not explain inaccuracies in model predictions. Instead, our results suggest that inaccuracies in muscle model parameters, most likely in parameters specifying muscle moment arms, are the main source of prediction errors by musculoskeletal models in the rat hindlimb. PMID- 29346114 TI - OR.NET: a service-oriented architecture for safe and dynamic medical device interoperability. AB - Modern surgical departments are characterized by a high degree of automation supporting complex procedures. It recently became apparent that integrated operating rooms can improve the quality of care, simplify clinical workflows, and mitigate equipment-related incidents and human errors. Particularly using computer assistance based on data from integrated surgical devices is a promising opportunity. However, the lack of manufacturer-independent interoperability often prevents the deployment of collaborative assistive systems. The German flagship project OR.NET has therefore developed, implemented, validated, and standardized concepts for open medical device interoperability. This paper describes the universal OR.NET interoperability concept enabling a safe and dynamic manufacturer-independent interconnection of point-of-care (PoC) medical devices in the operating room and the whole clinic. It is based on a protocol specifically addressing the requirements of device-to-device communication, yet also provides solutions for connecting the clinical information technology (IT) infrastructure. We present the concept of a service-oriented medical device architecture (SOMDA) as well as an introduction to the technical specification implementing the SOMDA paradigm, currently being standardized within the IEEE 11073 service-oriented device connectivity (SDC) series. In addition, the Session concept is introduced as a key enabler for safe device interconnection in highly dynamic ensembles of networked medical devices; and finally, some security aspects of a SOMDA are discussed. PMID- 29346115 TI - Mitochondrial dysfunction: a key player in the pathogenesis of cardiovascular diseases linked to air pollution. AB - Air pollution has become an environmental burden with regard to non-communicable diseases, particularly heart disease. It has been reported that air pollution can accelerate the development of heart failure and atrial fibrillation. Air pollutants encompass various particulate matters (PMs), which change the blood composition and heart rate and eventually leads to cardiac failure by triggering atherosclerotic plaque ruptures or by developing irreversible ischemia. A series of major epidemiological and observational studies have established the noxious effect of air pollutants on cardiovascular diseases (CVD), but the underlying molecular mechanisms of its susceptibility and the pathological disease events remain largely elusive and are predicted to be initiated in the cell organelle. The basis of this belief is that mitochondria are one of the major targets of environmental toxicants that can damage mitochondrial morphology, function and its DNA (manifested in non-communicable diseases). In this article, we review the literature related to air pollutants that adversely affect the progression of CVD and that target mitochondrial morphological and functional activities and how mitochondrial DNA (mtDNA) copy number variation, which reflects the airborne oxidant-induced cell damage, correlates with heart failure. We conclude that environmental health assessment should focus on the cellular/circulatory mitochondrial functional copy number status, which can predict the outcome of CVD. PMID- 29346116 TI - 4D computed tomography scans for conformal thoracic treatment planning: is a single scan sufficient to capture thoracic tumor motion? AB - Four dimensional computed tomography (4DCT) scans are routinely used in radiation therapy to determine the internal treatment volume for targets that are moving (e.g. lung tumors). The use of these studies has allowed clinicians to create target volumes based upon the motion of the tumor during the imaging study. The purpose of this work is to determine if a target volume based on a single 4DCT scan at simulation is sufficient to capture thoracic motion. Phantom studies were performed to determine expected differences between volumes contoured on 4DCT scans and those on the evaluation CT scans (slow scans). Evaluation CT scans acquired during treatment of 11 patients were compared to the 4DCT scans used for treatment planning. The images were assessed to determine if the target remained within the target volume determined during the first 4DCT scan. A total of 55 slow scans were compared to the 11 planning 4DCT scans. Small differences were observed in phantom between the 4DCT volumes and the slow scan volumes, with a maximum of 2.9%, that can be attributed to minor differences in contouring and the ability of the 4DCT scan to adequately capture motion at the apex and base of the motion trajectory. Larger differences were observed in the patients studied, up to a maximum volume difference of 33.4%. These results demonstrate that a single 4DCT scan is not adequate to capture all thoracic motion throughout treatment. PMID- 29346118 TI - Mycobacterium avium complex pulmonary disease: new epidemiology and management concepts. AB - PURPOSE OF REVIEW: The prevalence of Mycobacterium avium complex (MAC)-related pulmonary disease has been increasing because of environmental factors, changes in organism virulence, and evolving host susceptibility. Treatment is often complicated by adverse effects, development of drug resistance, and refractory disease, with recurrence rates as high as 25-45%. RECENT FINDINGS: Aerosolization of water, soil, or dusts are the likely sources of MAC-related pulmonary disease in susceptible individuals. The management of MAC-related pulmonary disease requires a multimodality approach, including antimicrobial therapy in appropriate patients, employment of mucus clearance techniques, instituting changes in the individual's home environment and personal habits to reduce environmental exposure to MAC, prevention of reflux, and maintenance of a healthy body weight. When the standard treatment for MAC-related pulmonary disease is not possible because of drug intolerance, antibiotic resistance, or progression of disease, second-line agents such as inhaled amikacin, clofazimine, bedaquiline, and delamanid must be considered, despite limited experience and few studies to guide their use. SUMMARY: Individuals who have proven to be susceptible to MAC-related pulmonary disease should institute measures to reduce exposure to environmental sources of infection. Further research is needed to assess the impact of such preventive strategies on the incidence of new infection and disease recurrence. The efficacy of new medications for MAC-related pulmonary disease and their use in different combinations also requires further study. PMID- 29346117 TI - The deubiquitinase USP9X regulates FBW7 stability and suppresses colorectal cancer. AB - The tumor suppressor FBW7 targets oncoproteins such as c-MYC for ubiquitylation and is mutated in several human cancers. We noted that in a substantial percentage of colon cancers, FBW7 protein is undetectable despite the presence of FBW7 mRNA. To understand the molecular mechanism of FBW7 regulation in these cancers, we employed proteomics and identified the deubiquitinase (DUB) USP9X as an FBW7 interactor. USP9X antagonized FBW7 ubiquitylation, and Usp9x deletion caused Fbw7 destabilization. Mice lacking Usp9x in the gut showed reduced secretory cell differentiation and increased progenitor proliferation, phenocopying Fbw7 loss. In addition, Usp9x inactivation impaired intestinal regeneration and increased tumor burden in colitis-associated intestinal cancer. c-Myc heterozygosity abrogated increased progenitor proliferation and tumor burden in Usp9x-deficient mice, suggesting that Usp9x suppresses tumor formation by regulating Fbw7 protein stability and thereby reducing c-Myc. Thus, we identify a tumor suppressor mechanism in the mammalian intestine that arises from the posttranslational regulation of FBW7 by USP9X independent of somatic FBW7 mutations. PMID- 29346119 TI - The role of tedizolid in skin and soft tissue infections. AB - PURPOSE OF REVIEW: Tedizolid is a second-generation oxazolidinone with activity against Gram-positive bacteria, including MRSA isolates resistant to linezolid. Pivotal clinical trials showed that tedizolid at 200 mg once-daily for 6 days is not inferior to linezolid 600 mg twice daily for 10 days in patients with SSTI. The comparison of adverse events is favorable to tedizolid under the circumstances of the clinical trials. This is a review of recent literature on tedizolid, its use in special populations and potential adverse effects. RECENT FINDINGS: Findings suggest that tedizolid can be used in SSTI in adolescents, those older than 65 years, obese individuals and patients with diabetic foot infections. Forthcoming research to determine the future uses of this drug in other clinical syndromes requires demonstration of tolerance whenever tedizolid is administered for longer than 6 days.We also speculate on missing data and potential future indications of tedizolid in the highly competitive field of the treatment of severe Gram-positive infections other than SSTI. SUMMARY: Tedizolid is a second-generation oxazolidinone, very convenient for treatment of SSTI, in search for other indications including nosocomial pneumonia and bone and joint infections. VIDEO ABSTRACT. PMID- 29346120 TI - A View From the UK: The UK and Ireland Confidential Enquiry into Maternal Deaths and Morbidity. AB - The UK Confidential Enquiry into Maternal Deaths has been in operation for more than 60 years, during which time maternal mortality rates have fallen 10-fold. The program includes two aspects, surveillance and confidential case review, providing different information to aid quality improvement in maternity care. The enquiry now also reviews the care of women with specific severe morbidities. Recommendations have very clearly led to improved outcomes for women, most notably shown in the very low mortality rate due to hypertensive and related disorders of pregnancy. Maternal cardiac disease and mental health problems remain the major areas still to be addressed. PMID- 29346122 TI - Bolus Norepinephrine Administration and Fetal Acidosis at Cesarean Delivery Under Spinal Anesthesia. PMID- 29346123 TI - In Response. PMID- 29346121 TI - Reducing Disparities in Severe Maternal Morbidity and Mortality. AB - Significant racial and ethnic disparities in maternal morbidity and mortality exist in the United States. Black women are 3 to 4 times more likely to die a pregnancy-related death as compared with white women. Growing research indicates that quality of health care, from preconception through postpartum care, may be a critical lever for improving outcomes for racial and ethnic minority women. This article reviews racial and ethnic disparities in severe maternal morbidities and mortality, underlying drivers of these disparities, and potential levers to reduce their occurrence. PMID- 29346124 TI - In Response. PMID- 29346125 TI - The Unknown Mechanism of Exogenous Tetrahydrobiopterin in the Renal Protection of Sheep Ischemia and Reperfusion. PMID- 29346126 TI - Complete revascularization for patients with ST-segment elevation myocardial infarction and multivessel coronary artery disease: a meta-analysis of randomized trials. AB - INTRODUCTION: Despite the recent findings in randomized clinical trials (RCTs) with limited sample sizes and the updates in clinical guidelines, the current available data for the complete revascularization (CR) in hemodynamically stable patients with ST-segment elevation myocardial infarction (STEMI) at the time of primary percutaneous coronary intervention (PCI) are still contradictory. AIM: The aim of this meta-analysis of the existing RCTs was to assess the efficacy of the CR versus revascularization of infarct-related artery (IRA) only during primary PCI in patients with STEMI and multivessel disease (MVD). PATIENTS AND METHODS: We searched PubMed, MEDLINE, Embase, Scopus, Google Scholar, Cochrane Central Register of Controlled Trials (CENTRAL), and ClinicalTrials.gov databases aiming to find RCTs for patients with STEMI and MVD which compared CR with IRA only. Random effect risk ratios (RRs) were calculated for efficacy and safety outcomes. RESULTS: Ten RCTs with 3291 patients were included. The median follow up duration was 17.5 months. Major adverse cardiac events (RR=0.57; 0.43-0.76; P<0.0001), cardiac mortality (RR=0.52; 0.31-0.87; P=0.014), and repeat revascularization (RR=0.50; 0.30-0.84; P=0.009) were lower in CR compared with IRA-only strategies. However, there was no significant difference in the risk of all-cause mortality, recurrent nonfatal myocardial infarction, stroke, major bleeding events, and contrast-induced nephropathy. CONCLUSION: For patients with STEMI and MVD undergoing primary PCI, the current evidence suggests that the risk of major adverse cardiac events, repeat revascularization, and cardiac death is reduced by CR. However, the risk for all-cause mortality and PCI-related complications is not different from the isolated culprit lesion-only treatment. Although these findings support the cardiac mortality and safety benefit of CR in stable STEMI, further large trials are required to provide better guidance for optimum management of such patients. PMID- 29346127 TI - Rivaroxaban with or without aspirin for prevention of cardiovascular disease. PMID- 29346128 TI - Management of heavy menstrual bleeding during direct oral anticoagulant therapy for recurrent venous thromboembolism: a case report. AB - : A high risk of venous thromboembolism (VTE) recurrence requires extended anticoagulation but limits the options to control heavy menstrual bleeding (HMB) in women of reproductive age. We report the management of HMB in a 48-year-old woman with a history of menometrorrhagia, recurrent VTE and multiple VTE risk factors. Due to the occurrence of HMB during extended rivaroxaban treatment, the presence of a uterine fibroid and the contraindication to interrupt anticoagulation for high risk of VTE recurrence, she received hormonal treatment first with a gonadotropin-releasing hormone agonist and then with progestin. This strategy allowed to adequately control HMB, without rivaroxaban discontinuation or dose reduction, and no new thromboembolic and no more bleeding events occurred over a long follow-up period of more than 20 months. In conclusion, the use of hormonal therapy in VTE women requiring long-term anticoagulation may be an option to control HMB, without further increasing the risk of VTE recurrence. PMID- 29346129 TI - High Inflammatory Infiltrate Correlates With Poor Symptomatic Improvement After Surgical Treatment for Superior Limbic Keratoconjunctivitis. AB - PURPOSE: Superior limbic keratoconjunctivitis (SLK) is a chronic and recurrent condition of unknown etiology. It is often managed conservatively, but there is a high rate of success with surgical management for severe or recalcitrant cases. The purpose of this article is to describe and analyze clinicopathological features of patients with SLK who underwent surgical treatment and their association with the clinical outcome. METHODS: A total of 22 eyes from 18 patients who underwent surgical SLK management were retrospectively analyzed. Clinicopathological data were collected including details of follow-up and patient satisfaction (n = 15). Moreover, 12 cases had specimens available for review of histopathologic findings and COX-2 expression analysis by immunohistochemistry. RESULTS: From a clinical perspective, 66.7% of the SLK eyes had nonmechanical factors contributing to SLK, and 66.7% of eyes demonstrated significant symptomatic improvement after surgery. Histopathological analysis of all the lesions showed acanthosis and goblet cell loss. Unexpectedly, in 93% of the eyes, dilated lymphatic vessels were found. Furthermore, a high inflammatory infiltrate correlated with minimal symptomatic improvements (P = 0.013). Moreover, COX-2 expression was higher in patients with SLK than in a normal conjunctiva (P = 0.001). CONCLUSIONS: In this study, the most common systemic association with SLK was the patient's autoimmune status. Histopathological evaluation revealed that high inflammatory infiltration in the biopsy might be predictive of minimal symptomatic improvement with surgical management. Finally, the higher COX-2 expression in patients with SLK compared with that in individuals with a normal conjunctiva supports the use of anti-COX-2 drugs as a possible therapeutic target. PMID- 29346130 TI - Reply: Management of Descemet Membrane Detachment After Forceps Birth Injury. PMID- 29346131 TI - Toxicological profile and safety pharmacology of a single dose of fibroblast activation protein-alpha-based doxorubicin prodrug: in-vitro and in-vivo evaluation. AB - Fibroblast activation protein-alpha (FAPalpha) is a promising tumor-associated target expressed by reactive stromal fibroblasts in tumor tissue. FAPalpha has a postprolyl peptidase activity and can specifically cleave N-terminal benzyloxycarbonyl (Z)-blocked peptides, such as the substrate Z-Gly-Pro-AMC. Doxorubicin (DOX) is an effective antitumor drug, but its application is greatly limited by toxic adverse effects owing to poor tumor selectivity. Based on these facts, we previously designed a FAPalpha-targeting prodrug of doxorubicin (FTPD) which can be selectively hydrolyzed by FAPalpha. FTPD can retain potent antitumor efficacy and has favorable tumor targeting. The present study aimed to further evaluate the toxicological profile and the safety pharmacological property of FTPD in vitro and in vivo. The cytotoxicity assay showed that FTPD displayed markedly lower cytotoxicity to 3T3 cells and HEK-293 cells compared with DOX. In the short-term toxicity study, mice treated with 25 mg/kg of FTPD showed no obvious change in the appearance and general behavior, and no case of mortality was observed within 14 days. Unlike DOX, FTPD exhibited reduced toxicity to heart, liver, kidney, spleen as well as peripheral white blood cells in mice. Moreover, open file test and general pharmacology study were also conducted correspondingly in mice and beagle dogs. It was found that FTPD may not produce significant pharmacological effects on spontaneous locomotor activity and cardiovascular-respiratory system except for a transient decreasing in systolic blood pressure. Taken together, the results of this work suggest that FTPD has more favorable toxicological profile and better drug safety compared with its parent drug DOX. PMID- 29346132 TI - Enzymatic sources and physio-pathological functions of soluble (pro)renin receptor. AB - PURPOSE OF REVIEW: (Pro)renin receptor (PRR) belongs to type I transmembrane receptor family and binds both prorenin and renin, representing a potential regulator of the activity of the renin-angiotensin system. Soluble form of PRR (sPRR) is generated by intracellular protease-mediated cleavage of full-length PRR. The purpose of this review is to highlight recent advances in understanding the mechanisms of action and production of sPRR. RECENT FINDINGS: It has recently been demonstrated that site-1-protease (S1P) plays a dominant role in the generation of sPRR. New evidence is also emerging to support a biological function of sPRR in the physiological regulation of fluid homeostasis as well as pathogenesis of chronic kidney disease. SUMMARY: sPRR is a 28 kDa product of PRR cleavage via S1P-mediated protease activity. Not only does sPRR regulate renal tubular water transport, but it also mediates pathogenic responses to renal cellular injury. sPRR is likely involved in a wide range of physio-pathological processes. PMID- 29346133 TI - Dexmedetomidine Impairs Diaphragm Function and Increases Oxidative Stress but Does Not Aggravate Diaphragmatic Atrophy in Mechanically Ventilated Rats. AB - BACKGROUND: Anesthetics in ventilated patients are critical as any cofactor hampering diaphragmatic function may have a negative impact on the weaning progress and therefore on patients' mortality. Dexmedetomidine may display antioxidant and antiproteolytic properties, but it also reduced glucose uptake by the muscle, which may impair diaphragm force production. This study tested the hypothesis that dexmedetomidine could inhibit ventilator-induced diaphragmatic dysfunction. METHODS: Twenty-four rats were separated into three groups (n = 8/group). Two groups were mechanically ventilated during either dexmedetomidine or pentobarbital exposure for 24 h, referred to as interventional groups. A third group of directly euthanized rats served as control. Force generation, fiber dimensions, proteolysis markers, protein oxidation and lipid peroxidation, calcium homeostasis markers, and glucose transporter-4 (Glut-4) translocation were measured in the diaphragm. RESULTS: Diaphragm force, corrected for cross sectional area, was significantly decreased in both interventional groups compared to controls and was significantly lower with dexmedetomidine compared to pentobarbital (e.g., 100 Hz: -18%, P < 0.0001). In contrast to pentobarbital, dexmedetomidine did not lead to diaphragmatic atrophy, but it induced more protein oxidation (200% vs. 73% in pentobarbital, P = 0.0015), induced less upregulation of muscle atrophy F-box (149% vs. 374% in pentobarbital, P < 0.001) and impaired Glut-4 translocation (-73%, P < 0.0005). It activated autophagy, the calcium-dependent proteases, and caused lipid peroxidation similarly to pentobarbital. CONCLUSIONS: Twenty-four hours of mechanical ventilation during dexmedetomidine sedation led to a worsening of ventilation-induced diaphragm dysfunction, possibly through impaired Glut-4 translocation. Although dexmedetomidine prevented diaphragmatic fiber atrophy, it did not inhibit oxidative stress and activation of the proteolytic pathways. PMID- 29346134 TI - Effect of Maternal Body Mass Index on Postpartum Hemorrhage. AB - BACKGROUND: It is unclear whether obesity is a risk factor for postpartum hemorrhage. The authors hypothesized that obese women are at greater risk of hemorrhage than women with a normal body mass index. METHODS: The authors conducted a cohort study of women who underwent delivery hospitalization in California between 2008 and 2012. Using multilevel regression, the authors examined the relationships between body mass index with hemorrhage (primary outcome), atonic hemorrhage, and severe hemorrhage (secondary outcomes). Stratified analyses were performed according to delivery mode. RESULTS: The absolute event rate for hemorrhage was 60,604/2,176,673 (2.8%). In this cohort, 4% of women were underweight, 49.1% of women were normal body mass index, 25.9% of women were overweight, and 12.7%, 5.2%, and 3.1% of women were in obesity class I, II, and III, respectively. Compared to normal body mass index women, the odds of hemorrhage and atonic hemorrhage were modestly increased for overweight women (hemorrhage: adjusted odds ratio [aOR], 1.06; 99% CI, 1.04 to 1.08; atonic hemorrhage: aOR, 1.07; 99% CI, 1.05 to 1.09) and obesity class I (hemorrhage: aOR, 1.08; 99% CI, 1.05 to 1.11; atonic hemorrhage; aOR, 1.11; 99% CI, 1.08 to 1.15). After vaginal delivery, overweight and obese women had up to 19% increased odds of hemorrhage or atonic hemorrhage; whereas, after cesarean delivery, women in any obesity class had up to 14% decreased odds of severe hemorrhage. CONCLUSIONS: The authors' findings suggest that, at most, maternal obesity has a modest effect on hemorrhage risk. The direction of the association between hemorrhage and body mass index may differ by delivery mode. PMID- 29346135 TI - Behavioral Health Training in Pediatric Residency Programs: A National Survey of Training Directors. AB - OBJECTIVE: To identify perceptions of behavioral health (BH) training in pediatric residency programs, the degree of involvement from behavioral health providers (BHPs), and opportunities for and barriers to innovation in training. METHOD: A tailored design methodology was used to target all pediatric residency program directors in the United States (N = 214). Participants were identified from the Electronic Residency Application Service website of the Association of American Medical Colleges and were asked to complete a 22-item item survey on BH training. RESULTS: A 69.2% usable response rate (N = 148) was obtained. A total of 62.8% of directors described training in the developmental-behavioral pediatrics (DBP) rotation as optimal; 36% described BH training in the residency program as a whole (i.e., outside the DBP rotation) as optimal. Only 20.3% described "common factors" training as optimal, and the quality of training in this area was positively and significantly related to the quality of BH training in the residency program as a whole (chi = 35.05, p < 0.001). The quality of common factors training was significantly higher in programs that had embedded BHPs (i.e., psychologists and social workers) in the continuity clinic than programs that did not (chi = 7.65, p = 0.04). Barriers to quality training included instructional content, instructional methods, stakeholder support, and resources. CONCLUSION: Despite substantial improvement in residency training in BH over the last decade, additional improvement is needed. Barriers to continued improvement include training content, training methods, support from faculty and administrator stakeholders, and resource issues. Strategies derived from implementation science have the potential to address these barriers. PMID- 29346136 TI - Interdisciplinary Team Evaluation: An Effective Method for the Diagnostic Assessment of Autism Spectrum Disorder. AB - OBJECTIVE: The objective of this research is to assess the feasibility of an interdisciplinary team diagnostic assessment model for autism spectrum disorder (ASD). METHOD: Medical records from 366 patients evaluated for ASD at the Seattle Children's Autism Center (SCAC) were reviewed. ASD diagnostic outcomes, provider satisfaction, engagement in follow-up care, billed time, and reimbursement amounts were compared in patients evaluated through an interdisciplinary team approach (n = 91) with those seen in multidisciplinary evaluations led by either a psychologist (n = 165) or a physician (n = 110). RESULTS: Diagnostic determination was made in 90% of patients evaluated through the interdisciplinary team model in a single day. Rates of ASD diagnosis were similar across the 3 tracks, ranging from 61% to 72%. Demographic characteristics did not impact the likelihood of ASD diagnosis. Rates of patient follow-up care and provider satisfaction were significantly higher in interdisciplinary versus multidisciplinary teams. Interdisciplinary team evaluations billed 1.8 fewer hours yet generated more net hourly clinic income compared with psychology-led multidisciplinary evaluations. CONCLUSION: An interdisciplinary team approach, focusing on ruling-in or ruling-out ASD, was sufficient to determine ASD diagnosis in most patients seen at the SCAC Interdisciplinary teams generated more clinic income and decreased the time spent in evaluation compared with a psychology-led approach. They did so while maintaining consistency in diagnostic rates, demonstrating increased provider satisfaction and an increased likelihood of engagement in follow-up care. PMID- 29346137 TI - Guidance Provided to Authors on Citing and Formatting References in Nursing Journals. AB - Reference citations should be accurate, complete, and presented in a consistent format. This study analyzed information provided to authors on preparing citations and references for manuscripts submitted to nursing journals (n = 209). Half of the journals used the American Psychological Association reference style. Slightly more than half provided examples of how to cite articles and books; there were fewer examples of citing websites and online journals. Suggestions on improving accuracy of references are discussed. PMID- 29346138 TI - Obesity and chronic kidney disease. AB - PURPOSE OF REVIEW: To review recent advances in the epidemiology, pathophysiology, clinical features, and treatment of obesity-related kidney disease. RECENT FINDINGS: Studies have confirmed that obesity is associated with increased risk of developing chronic kidney disease (CKD). This risk extends to those who are metabolically healthy, indicating that obesity per se contributes to CKD independent of the metabolic syndrome. Recent developments in the pathophysiology of obesity-related kidney disease indicate that chronic inflammation and abnormal lipid metabolism contribute to kidney cell injury. Children with severe obesity have increased prevalence of early kidney abnormalities, including albuminuria, decreased kidney function, and elevated biomarkers of early kidney injury. For these patients, bariatric surgery has emerged as a treatment option to consider. Longitudinal studies in children and adults have demonstrated that in patients with obesity-related kidney disease, kidney function and albuminuria improve following bariatric surgery. SUMMARY: The injurious renal effects of obesity are present in childhood, although the natural history and clinical spectrum of obesity-related kidney disease in children are not known. In obese children with early kidney disease, identification of kidney injury, implementation of preventive strategies, and prompt treatment are essential to improving clinical outcomes. PMID- 29346139 TI - Blood biomarkers for evaluation of perinatal encephalopathy: state of the art. AB - PURPOSE OF REVIEW: The rapid progress in biomarker science is on the threshold of significantly changing clinical care for infants in the neonatal ICU. Infants with neonatal brain injuries will likely be the first group whose management is dramatically altered with point-of-care, rapidly available brain biomarker analysis. Providing an interim update on progress in this area is the purpose of this review. RECENT FINDINGS: Highlighted findings from the past 18 months of publications on biomarkers in neonatal brain injury include; Specific nonbrain markers of cardiac health and global asphyxia continue to provide information on brain injury after hypoxic-ischemic encephalopathy (HIE). Prediction of injury in the piglet hypoxia-ischemia model is improved with the use of a combination score of plasma metabolites. In a neonatal piglet model of perinatal hypoxia-ischemia, a systemic proinflammatory surge of cytokines has been identified after rewarming from therapeutic hypothermia. New biomarkers identified recently include osteopontin, activin A, neutrophil gelatinase-associated lipocalin, secretoneurin, Tau and neurofilament light protein. Brain-based biomarkers differ in their ability to predict short-term in-hospital outcomes and long-term neurologic deficits. SUMMARY: Neonatal brain biomarker research is currently in its very early development with major advances still to be made. PMID- 29346140 TI - Neonatal hypoglycemia: continuous glucose monitoring. AB - PURPOSE OF REVIEW: Continuous glucose monitoring (CGM) is increasingly used in the management of diabetes in children and adults, but there are few data regarding its use in neonates. The purpose of this article is to discuss the potential benefits and limitations of CGM in neonates. RECENT FINDINGS: Smaller electrodes in new sensors and real-time monitoring have made CGM devices more approachable for neonatal care. CGM is well tolerated in infants including very low birth weight babies, and few if any local complications have been reported. Use of CGM in newborns may reduce the frequency of blood sampling and improve glycemic stability, with more time spent in the euglycemic range. However, CGM may also lead to more intervention, with potential adverse effects on outcomes. More information is also needed about reliability, calibration and interpretation of CGM in the neonate. SUMMARY: Although the use of CGM in neonates appears to be well tolerated, feasible and has been associated with better glycemic status, there is not yet any evidence of improved clinical outcomes. Clinical utility of CGM should be demonstrated in randomized trials prior to its introduction into regular neonatal care. PMID- 29346141 TI - Caffeine controversies. AB - PURPOSE OF REVIEW: Caffeine use in preterm infants has endured several paradigms: from standard of care to possible neurotoxin to one of the few medications for which there is evidence of bronchopulmonary dysplasia (BPD) risk reduction. The purpose of the review is to analyze this dynamic trajectory and discuss controversies that still remain after decades of caffeine use. RECENT FINDINGS: Following concerns for caffeine safety in preterm infants, a large randomized controlled trial demonstrated a reduction in BPD and treatment for patent ductus arteriosus. The lower rate of death or neurodevelopmental impairment noted at 18 21 months was not statistically different at later timepoints; however, infants in the caffeine group had lower rates of motor impairment at 11-year follow-up. The time of caffeine therapy initiation is now substantially earlier, and doses used are sometimes higher that previously used, but there are limited data to support these practices. SUMMARY: Caffeine therapy for apnea of prematurity (AOP) remains one of the pillars of neonatal care, although more evidence to support dosing and timing of initiation and discontinuation are needed. PMID- 29346142 TI - Neonatal abstinence syndrome: an update. AB - PURPOSE OF REVIEW: The current review provides an update focused on the evolving epidemiology of neonatal abstinence syndrome (NAS), factors influencing disease expression, advances in clinical assessment of withdrawal, novel approaches to NAS treatment, and the emerging role of quality improvement in assessment and management of NAS. RECENT FINDINGS: The rise in the incidence of NAS disproportionately occurred in rural and suburban areas. Polysubstance exposure and genetic polymorphisms have been shown to modify NAS expression and severity. New bedside assessments using a limited number of factors to identify infants with NAS result in fewer infants receiving pharmacotherapy. In addition, buprenorphine may be a promising therapeutic alternative to morphine to treat NAS. Lastly, local, state, and national quality improvement initiatives have emerged as an effective mechanism to advance the care of infants with NAS. SUMMARY: NAS remains a critical public health issue associated with significant medical, economic, and personal burdens. Emerging data on associated risk factors, assessment of and treatment for NAS provide clinicians and hospitals with new knowledge and an urgency to promote standardization of care for infants with NAS. PMID- 29346143 TI - Progression of chronic kidney disease in children. PMID- 29346144 TI - Making Keys, Looking for Locks: Technology-Driven Versus Patient-Focused Medical Devices. PMID- 29346145 TI - Diagnostic and Therapeutic Ultrasound on Venous and Arterial Ulcers: A Focused Review. AB - GENERAL PURPOSE: To provide information about the use of ultrasound for diagnostic and therapeutic treatment of venous and arterial ulcers. TARGET AUDIENCE: This continuing education activity is intended for physicians, physician assistants, nurse practitioners, and nurses with an interest in skin and wound care. LEARNING OBJECTIVES/OUTCOMES: After completing this continuing education activity, you should be able to: ABSTRACT: To review the diagnostic and therapeutic use of ultrasound on venous and arterial ulcers. METHODS: PubMed was searched for peer-reviewed articles using the search terms "ultrasound for venous ulcers" and "ultrasound for arterial ulcers." The search yielded 282 articles on ultrasound for venous ulcers and 455 articles for ultrasound on arterial ulcers. Data from 36 articles were selected and included after abstract review. RESULTS: Ultrasound is an established diagnostic modality for venous and arterial disease and is indicated for wound debridement. Recent evidence continues to support its superiority over standard of care in healing venous ulcers, but findings conflict in terms of the effectiveness of low-frequency ultrasound over high-frequency ultrasound. There are currently no standardized treatment protocols for ultrasound. CONCLUSIONS: Diagnostic ultrasound is used to assess venous and arterial disease and guide appropriate treatment for ulcers. Therapeutic low frequency ultrasound is used to debride the wound bed, as an adjunctive topical wound treatment with standard of care, and to guide the application of other advanced therapies to chronic wounds. Better trial designs and consistent data are needed to support the effectiveness of ultrasound therapy on venous and arterial ulcers. PMID- 29346146 TI - Use of Oxidized Regenerated Cellulose/Collagen Matrix in Chronic Diabetic Foot Ulcers: A Systematic Review. AB - OBJECTIVE: Diabetic wounds that do not heal completely usually exhibit inflammatory markers, increased protease activity, and reduced levels of growth factors and cell count. A systematic review was performed to determine whether there is enough evidence to support the use of an oxidized regenerated cellulose/collagen matrix (ORC+C) to treat diabetic foot ulcers (DFUs). METHODS: Study authors analyzed randomized controlled trials (RCTs) on ORC+C dressings for the treatment of DFUs. A literature search was conducted for all available reports of relevant studies published in journals indexed in PubMed, LILACS, and SciELO databases. There were no restrictions based on date of publication. A population-intervention-comparison-outcome framework was built on MeSH terms and keywords. Two independent researchers analyzed all articles for data collection and used the Cochrane Collaboration tool for risk-of-bias assessment. RESULTS: At first, 316 related studies were located in the databases. After evaluating these studies for methodological similarities, only 3 were considered eligible for the review. One RCT was considered at high risk of bias. Results from this meta analysis of 2 studies showed no significant improvement in wound healing rates of DFUs when ORC+C was compared with standard wound care. CONCLUSIONS: Because of several methodology flaws in the reviewed studies, these results suggest that there is currently no research evidence to suggest that the use of ORC+C improves wound healing rates of DFUs. Additional research with high-quality RCTs focused on diabetic ulcers is necessary. PMID- 29346147 TI - Hypoperfusion and Wound Healing: Another Dimension of Wound Assessment. AB - OBJECTIVE: To examine the correlation between mean arterial pressure (MAP) and wound healing indices and describe an analytical process that can be used accurately and prospectively when evaluating all types of skin ulcerations. METHODS: A correlational study in a long-term-care facility.Participants (N = 230) were adults residing in a long-term-care facility with an average age of 77.8 years (range, 35-105). MAIN OUTCOME MEASURES: Assessment through both an index of wound healing and wound surface area. Signs of wound healing included a reduction of surface area and surface necrosis and increased granulation or epithelialization. RESULTS: Aggregate analyses for all wound locations revealed a positive correlation between the MAP and index of wound healing (r = 0.86, n = 501, P < .0001). A well-defined positive correlation between the MAP and stalled or poor wound healing was noted for all wound locations in this data set when MAP values were 80 mm Hg or less (r = 0.95, n = 141, P < .0001). Further, the data set of truncal wounds and MAP of less than 80 mm Hg yielded a very strong positive correlation. The data indicated that as perfusion decreased, wounds within the sample population declined (r = 0.93, n = 102, P < .0001). CONCLUSION: The data suggest that MAP values less than 80 mm Hg can independently result in stalled wound healing or worsened wounds. A predictability of wounds stalling or declining related to the MAP was observed, regardless of topical treatment or standard-of-care interventions. Therefore, the data also suggest that remediating states of low perfusion should take precedence in making treatment decisions. PMID- 29346148 TI - Vertical Profunda Artery Perforator Flap for Plantar Foot Wound Closure: A New Application. AB - BACKGROUND: Plantar foot reconstruction requires special consideration of both form and function. There are several fasciocutaneous flap options, each with indications and reservations. CASE STUDY: This case presents a new application of the vertical profunda artery perforator flap for definitive closure of a neuropathic foot ulcer in a young woman with spina bifida. The postoperative course was uneventful, and the flap survived completely. The surgical and donor sites were without wound recurrence at 5-month follow-up. DISCUSSION: Understanding the variability of foot flap options is important because of unique cases such as the one presented where the wound was caused by specific and less commonly observed foot anatomy. The specific choice to use the vertical profunda artery perforator flap for this patient and her neuropathic wound type was made based on its excellent flexibility, durability, and donor site appeal. CONCLUSIONS: The vertical profunda artery perforator flap has adequate surface area and bulk and a favorable pedicle length and caliber, can be thinned, and leaves a donor scar in a less conspicuous area than other popular free flaps for lower-extremity reconstruction. For these reasons, it should be considered a first-line therapy for free flap coverage of selected foot wounds. PMID- 29346149 TI - Testing Elevated Protease Activity: Prospective Analysis of 160 Wounds. AB - OBJECTIVE: Given that local elevated protease activity (EPA) has been implicated in impaired wound healing, a prospective single-center study was conducted to assess protease activity in various wound types. METHODS: Protease activity was determined using an easy-to-use test system (Woundchek Protease Status Test Kit; Systagenix, Gatwick, United Kingdom) in 160 wounds in 143 patients. The assay detects the combined activity of inflammatory proteases, mainly matrix metalloproteinases 8 and 9 and human neutrophil elastase. RESULTS: Local EPA was detected in 29 of 153 validly tested wounds (18.95%). No difference was detected between acute and chronic wounds, regardless of associated or causative conditions, with the sole exception of surgical wounds. Surgical wounds showed EPA significantly less frequently than nonsurgical wounds. Among nonsurgical wounds, EPA was detected more frequently in acute compared with chronic wounds. Wounds with signs of unimpeded healing (granulation or epithelialization) showed EPA less often than wounds covered with necrotic tissue or a fibrin layer. However, 14% of wounds with epithelialization or granulation exhibited EPA potentially impeding wound healing. Wounds treated with moisture-retentive wound dressings showed EPA significantly less frequently compared with wounds bandaged with dressings with less moisture-retentive properties. Remarkably, none of the wounds treated with collagen/oxidized regenerated cellulose/silver, which is a protease-modulating dressing, showed EPA. CONCLUSIONS: To the study authors' knowledge, this is the largest study assessing EPA in various wound types. The convenient applicability of the test system provides a basis for future studies assessing the pathophysiologic relevance of EPA. In some unsuspicious wounds, early detection of EPA might precede impaired healing and prompt protease modulating treatment before failure to heal becomes apparent. PMID- 29346150 TI - Orders and Documentation Are Vital to Diabetic Shoe Coverage. PMID- 29346154 TI - The Cornerstone of Compliance: Your Workflow. PMID- 29346155 TI - Diagnostic and Therapeutic Ultrasound on Venous and Arterial Ulcers: A Focused Review. PMID- 29346156 TI - Developing a Mobile App for Prevention and Treatment of Pressure Injuries. AB - OBJECTIVE: This descriptive study describes the planning and development of a mobile application (app) for prevention and treatment of pressure injuries for use by providers in a university research center. The app delineates risk factors for pressure injury development, provides an evaluation of the wound, recommends wound cleansing procedures, performs pressure injury staging, and recommends treatment interventions. METHODS: A mobile app was developed using a contextualized instructional design, which involves a constructivist proposal and planning, developing, and applying specific didactic situations, thus incorporating mechanisms that favor contextualization. A literature search was conducted to identify relevant studies for the construction of the mobile app. The development process involved the selection of app tools, definition of the navigation structure, and planning of the environment configuration. The environment for downloading the app software on the Internet and installing it on the mobile device was created. MAIN RESULTS: The literature search yielded 18 articles, 2 books, and 1 master's degree thesis. A mobile app was created with an easy-to-use graphic interface. The app stores the patient's demographic characteristics and provides an evaluation of his/her wound, a list of risk factors for pressure injury development, wound cleansing procedures, and treatment interventions. CONCLUSIONS: The developed app may be useful in clinical practice, helping to prevent pressure injuries and promote select nursing interventions for the treatment of patients with pressure injury. PMID- 29346158 TI - Biomechanical Response to Osteoarthritis Pain Treatment May Impair Long-Term Efficacy. AB - Pain has an important physiologic role and acts with or stimulates motor system adaptations to protect tissue from threats of damage. Although clinically beneficial, removing the protective pain response may have negative consequence in osteoarthritis, a mechanically mediated disease. We hypothesize motor system adaptations to joint pain and its treatment may impact osteoarthritis progression, thereby limiting efficacy of pain therapies. PMID- 29346157 TI - Identifying Novel Signaling Pathways: An Exercise Scientists Guide to Phosphoproteomics. AB - We propose that phosphoproteomic-based studies will radically advance our knowledge about exercise-regulated signaling events. However, these studies use cutting-edge technologies that can be difficult for nonspecialists to understand. Hence, this review is intended to help nonspecialists 1) understand the fundamental technologies behind phosphoproteomic analysis and 2) use various bioinformatic tools that can be used to interrogate phosphoproteomic datasets. PMID- 29346159 TI - Making a Case for Cardiorespiratory Fitness Surveillance Among Children and Youth. AB - We review the evidence that supports cardiorespiratory fitness (CRF) as an important indicator of current and future health among school-aged children and youth, independent of physical activity levels. We discuss the merit of CRF measurement for population health surveillance and propose the development of CRF guidelines to help support regional, national, and international surveillance efforts. PMID- 29346160 TI - Potential Role of MicroRNA in the Anabolic Capacity of Skeletal Muscle With Aging. AB - Age-induced loss of skeletal muscle mass and function, termed sarcopenia, may be the result of diminished response to anabolic stimulation. This review will explore the hypothesis that alterations in the expression of microRNA with aging contributes to reduced muscle plasticity resulting in impaired skeletal muscle adaptations to exercise-induced anabolic stimulation. PMID- 29346161 TI - Promotion of Exercise in Multiple Sclerosis Through Health Care Providers. AB - Participation in exercise yields meaningful benefits among persons with multiple sclerosis (MS), yet this population engages in low rates of health-promoting physical activity. The disconnect between evidence of benefits and rates of participation requires consideration of new opportunities for changing this health behavior. The current article hypothesizes that the patient-provider interaction offers a fertile opportunity for promoting exercise behavior in MS. PMID- 29346162 TI - Specificity of "Live High-Train Low" Altitude Training on Exercise Performance. AB - The novel hypothesis that "Live High-Train Low" (LHTL) does not improve sport specific exercise performance (e.g., time trial) is discussed. Indeed, many studies demonstrate improved performance after LHTL but, unfortunately, control groups are often lacking, leaving open the possibility of training camp effects. Importantly, when control groups, blinding procedures, and strict scientific evaluation criteria are applied, LHTL has no detectable effect on performance. PMID- 29346163 TI - The Hippo Signaling Pathway in the Regulation of Skeletal Muscle Mass and Function. AB - The Hippo signaling pathway regulates the activity of the proteins Yes-associated protein (Yap) and transcriptional co-activator with PDZ-binding motif (Taz) to control tissue growth in many different cell types. Previously, we demonstrated that Yap is a critical regulator of skeletal muscle mass. We hypothesize that alterations in Yap and Taz activity modulate the anabolic adaptations of skeletal muscle to resistance exercise. PMID- 29346164 TI - The Nuclear Receptor Nor-1 Is a Pleiotropic Regulator of Exercise-Induced Adaptations. AB - Exercise induces various physical and metabolic changes in skeletal muscle that adaptively reprograms this tissue to current physiological and environmental demands. Underlying these changes are broad modifications to gene expression. We postulate that the nuclear hormone receptor, Nor-1, is activated after exercise, and this transcription factor modifies gene expression to drive the molecular and cellular adaptations associated with contractile reorganization. PMID- 29346165 TI - Using Drosophila to Understand Biochemical and Behavioral Responses to Exercise. AB - The development of endurance exercise paradigms in Drosophila has facilitated study of genetic factors that control individual response to exercise. Recent work in Drosophila has demonstrated that activation of octopaminergic neurons is alone sufficient to confer exercise adaptations to sedentary flies. These results suggest that adrenergic activity is both necessary and sufficient to promote endurance exercise adaptations. PMID- 29346166 TI - Cardiorespiratory Fitness in Children and Youth: A Call for Surveillance, But Now How Do We Do It? PMID- 29346167 TI - New Reference Values for Cardiopulmonary Exercise Testing in Children. AB - INTRODUCTION: Cardiopulmonary exercise testing is an essential tool to assess cardiorespiratory fitness (CRF) in children. There is a paucity of adequate pediatric reference values that are independent of body size and pubertal stage. The purpose of this study is to provide Z score equations for several maximal and submaximal CRF parameters derived from a prospectively recruited sample of healthy children. METHODS: In this cross-sectional multicenter study, we prospectively recruited 228 healthy children 12 to 17 yr old in local schools. We performed a symptom-limited cardiopulmonary exercise testing progressive ramp protocol on an electronically braked cycle ergometer. Eighteen CRF parameters were analyzed. We tested several regression models to obtain prediction curves that minimized residual association with age, body size, and pubertal stage. Both the predicted mean and the predicted SD were modeled to account for heteroscedasticity. RESULTS: We identified nonlinear association of CRF parameters with body size and significant heteroscedasticity. To normalize CRF parameters, the use of a single body size variable was not sufficient. We therefore used multivariable models with various combination of height, corrected body mass, and age. Final prediction models yielded adjusted CRF parameters that were independent of age, sex, body mass, height, body mass index, and Tanner stages. CONCLUSIONS: We present Z score equations for several CRF parameters derived from a healthy pediatric population. These reference values provide updated predicted means and range of normality that are independent of sex and body size. Further testing is needed to assess if these reference values increase sensitivity and specificity to identify abnormal cardiorespiratory response in children with chronic diseases. PMID- 29346168 TI - A New Robot-assisted Billroth-I Reconstruction: Details of the Technique and Early Results. AB - BACKGROUND: Laparoscopic surgery for gastric tumor is considered a demanding procedure because of lymph node dissection and reconstruction. Billroth-I (B-I) reconstruction after laparoscopic distal gastrectomy is commonly performed extracorporeally because of the complexity of an intracorporeal procedure. Robotic surgery overcomes some limitations of laparoscopy, allowing to reproduce the basic maneuvers of open surgery. We describe a new technique to perform robotic B-I anastomosis. METHODS: Between January 2012 and February 2015, 5 patients underwent distal gastrectomy with intracorporeal B-I-stapled anastomosis. Patient demographics, tumor characteristics, histopathologic features, and perioperative data were analyzed. RESULTS: Median operative time was 170 minutes (145 to 180 min). There were no conversions. Contrast swallow was routinely performed on the third postoperative day. Median postoperative hospitalization was 7 days (range: 6 to 8). No major complications or mortality were observed. CONCLUSIONS: Robotic distal gastrectomy with intracorporeal B-I anastomosis is a safe and promising technique in selected cases of gastric tumors. PMID- 29346169 TI - Sphenoid Dysplasia: A Rare Presentation of Infantile Myofibroma. AB - The authors report a case of isolated congenital orbital myofibroma causing sphenoid dysplasia and presenting as global restriction of extraocular motility and ptosis in a neonate. Sphenoid wing dysplasia is most commonly associated neurofibromatosis 1 but this patient had no evidence of neurofibromatosis on clinical examination and genetic testing. Congenital orbital myofibroma can have secondary effects on bone and likely the lesion was present early in development leading to aplasia of the sphenoid bone. To the best of the authors' knowledge, this is the first reported case of sphenoid wing aplasia secondary to congenital orbital myofibroma independent of neurofibromatosis 1. PMID- 29346170 TI - Apocrine Cystadenoma of the Eyelid: A Rare Palpebral Neoplasm. Report of 2 Cases. AB - The authors report 2 cases of apocrine cystadenoma of the eyelid, 1 of which was studied with immunohistochemical and other special stains. While a previous report describes the tumor in a palpebro-orbital location, no other detailed descriptions of a purely eyelid location are present in the literature. Apocrine cystadenoma occupies an unusual portion of the spectrum of Moll gland tumors of the eyelid. It has no definitive clinical characteristics and may be diagnosed pathologically by hematoxylin-eosin-stained sections. PMID- 29346171 TI - A Common Procedure With an Uncommon Pathology: Triamcinolone Acetonide Eyelid Injection. AB - Local corticosteroid injections are frequently employed by ophthalmologists to treat a variety of ocular, periocular, and orbital inflammatory conditions. Triamcinolone acetonide is a slowly dissolving crystalline corticosteroid that is often used for this purpose because of its prolonged anti-inflammatory effect. On occasion, previously injected corticosteroid material persists in tissues longer than anticipated, creating nodules that may masquerade as other disease conditions, or appearing incidentally in excised lesions on histopathologic examination. The histopathologic features of corticosteroid residues are unfamiliar to most ophthalmic pathologists and general pathologists. These features are described herein. Triamcinolone acetonide deposits in the skin appear as pale eosinophilic lakes of acellular frothy material on hematoxylin eosin staining and are occasionally surrounded by a mild inflammatory reaction. PMID- 29346172 TI - Apremilast Use in a Case of Cicatricial Ectropion Secondary to Severe Lamellar Ichthyosis. AB - Ichthyosis is a cutaneous disorder characterized by excessive amounts of dry thickened skin surface scales. Ocular manifestations of ichthyosis include cicatricial ectropion, which may cause exposure keratoconjunctivitis and rarely corneal perforation. Topical emollients, anti-inflammatory ointments, and systemic retinoids have been used to control the disease process, while surgical correction with donor graft has been reserved for severe cases involving corneal exposure. The authors report a case of a Caucasian male with lamellar ichthyosis with severe bilateral upper and lower eyelid cicatricial ectropion and corneal ulceration requiring surgical correction. Treatment with apremilast, a novel phosphodiesterase-4 inhibitor, for the treatment of a concomitant plaque psoriasis achieved good control of his skin diseases and minimized the recurrence of eyelid ectropion. PMID- 29346173 TI - The subresolution DaTSCAN phantom: a cost-effective, flexible alternative to traditional phantom technology. AB - The Alderson striatal phantom is frequently used to assess I-FP-CIT (Ioflupane) image quality and to test semi-quantification software. However, its design is associated with a number of limitations, in particular: unrealistic image appearances and inflexibility. A new physical phantom approach is proposed on the basis of subresolution phantom technology. The design incorporates thin slabs of attenuating material generated through additive manufacturing, and paper sheets with radioactive ink patterns printed on their surface, created with a conventional inkjet printer. The paper sheets and attenuating slabs are interleaved before scanning. Use of thin layers ensures that they cannot be individually resolved on reconstructed images. An investigation was carried out to demonstrate the performance of such a phantom in producing simplified I-FP-CIT uptake patterns. Single photon emission computed tomography imaging was carried out on an assembled phantom designed to mimic a healthy patient. Striatal binding ratio results and linear striatal dimensions were calculated from the reconstructed data and compared with that of 22 clinical patients without evidence of Parkinsonian syndrome, determined from clinical follow-up. Striatal binding ratio results for the fully assembled phantom were: 3.1, 3.3, 2.9 and 2.6 for the right caudate, left caudate, right putamen and right caudate, respectively. All were within two SDs of results derived from a cohort of clinical patients. Medial-lateral and anterior-posterior dimensions of the simulated striata were also within the range of values seen in clinical data. This work provides the foundation for the generation of a range of more clinically realistic, physical phantoms. PMID- 29346174 TI - Tonal and vowel information processing in Chinese spoken word recognition: an event-related potential study. AB - In the present study, the time course of tonal and vowel information processing of the spoken words in Mandarin Chinese was investigated using a delayed-response paradigm. Idiomatic materials, providing semantically highly constraining contexts, were utilized. Besides being presented normally, the terminal monosyllabic words in idioms were manipulated with Tonal, Vowel, or Triple violations (i.e. with consonantal, tonal, and vowel mismatches). Event-related potential results showed that all three violations elicited larger widespread negativities in comparison with the Control condition, with the Triple violation effect starting first from 150 ms, then the Vowel violation, and the Tonal violation being the latest. The different starting times of the violation effects suggest that the access of tonal information is slower than that of vowel information, even though the lexical tones are very important in distinguishing the meaning of Chinese words. PMID- 29346175 TI - Long-Term Impacts Faced by Patients and Families After Harmful Healthcare Events. AB - BACKGROUND: Patients and families report experiencing a multitude of harms from medical errors resulting in physical, emotional, and financial hardships. Little is known about the duration and nature of these harms and the type of support needed to promote patient and family healing after such events. We sought to describe the long-term impacts (LTIs) reported by patients and family members who experienced harmful medical events 5 or more years ago. METHODS: We performed a content analysis on 32 interviews originally conducted with 72 patients or family members about their views of the factors contributing to their self-reported harmful event. Interviews selected occurred 5 or more years after the harmful event and were grouped by time since event, 5 to 9 years (22 interviews) or 10 or more years (10 interviews) for analysis. We analyzed these interviews targeting spontaneous references of ongoing impacts experienced by the participants. RESULTS: Participants collectively described the following four LTIs: psychological, social/behavioral, physical, and financial. Most cited psychological impacts with half-reporting ongoing anger and vivid memories. More than half reported ongoing physical impacts and one-third experienced ongoing financial impacts. Long-term social and behavioral impacts such as alterations in lifestyle, self-identity, and healthcare seeking behaviors were the most highly reported. CONCLUSIONS: These patients and families experienced many profound LTIs after their harmful medical event. For some, these impacts evolved into secondary harms ongoing 10 years and more after the event. Our results draw attention to the persistent impacts patients and families may experience long after harmful events and the need for future research to understand and support affected patients and families. PMID- 29346176 TI - Rapid Response: To Scan or Not to Scan? The Utility of Noncontrast CT Head for Altered Mental Status. AB - OBJECTIVES: The aims of the study were the following: (1) to determine how often computed tomography (CT) scans of the head are obtained on rapid responses called for altered mental status (AMS), (2) to determine whether CT imaging of the head is required during all rapid responses called for AMS, (3) to determine which patients would benefit from CT scans of the head in this setting, (4) to note whether an adequate neurologic exam was documented, (5) to determine the cost of CT scans that did not change management, and (6) to examine the role of medications leading to AMS. METHODS: The study was a retrospective chart review at Abington Jefferson Hospital. Data collected included the age, sex, time of rapid response, clinical condition of the patient, whether an arterial blood gas and blood glucose were done, and whether a neurological exam was documented in the resident's rapid response team note. The patient's medications were also reviewed. Computed tomography scan findings as well as changes made in a patient's care as a result of the scan were recorded. Any findings that did not lead to a change in management were considered a "negative" scan. RESULTS: Overall, 610 rapid responses were activated from January to August 2016. One hundred four (17.04%) of the total rapid responses were for AMS and 83 (79.8%) of these patients underwent noncontrast CT scan of the head. The mean (SD) age of the patients was 74.7 (13.6) years. A total of 56.6% were female. The most frequent clinical conditions documented at the time of rapid responses were noted as confused (33.7%, 28/83), either lethargic or unconscious (32.5%, 27/83), and concern for stroke (21.7%, 18/83). A total of 96.4% (80/83) of the CT scans done were negative for any acute changes. The three patients with positive scans (3/83) had a change in management as a result of the scans. If patients with symptoms concerning for stroke and unconscious patients are excluded, the total number of remaining patients is 56. Of these, zero patients had a positive scan. A total of 64.7% of the rapid response teams were activated either in the afternoon (31.3%) or at night (33.7%). A total of 33.7% had a complete neurological exam documented. A total of 66.2% were either incomplete (34.9%) or absent (31.3%). Sixty percent of the patients who had a CT head for AMS also had a blood sugar checked at bedside. Thirty-eight percent had an arterial blood gas. More than half the patients were taking one or more sedating medications (45/83, 57.8%). Most patients were not on anticoagulants (79.5%). CONCLUSIONS: The findings of this study suggest that CT scan of the head is useful in older patients, patients with symptoms concerning for stroke, or cases of sudden onset of impaired consciousness. Noncontrast CT scans of the head are not useful for other presentations of AMS. PMID- 29346177 TI - No association between FOXP2 rs10447760 and schizophrenia in a replication study of the Chinese Han population. AB - BACKGROUND: Schizophrenia (SCZ) is a severe and heritable psychiatric disorder, and previous studies have shown that regulation of the forkhead-box P2 gene (FOXP2) may play a role in schizophrenia. Moreover, just a few studies have identified a single nucleotide polymorphism (SNP) rs10447760 within the gene that was a risk variant for SCZ in the Chinese Han population. METHODS: To examine whether the variant in the FOXP2 gene contributes toward SCZ susceptibility, we carried out an association analysis of the SNP rs10447760 of the FOXP2 gene in a case-control study (1405 cases, 1137 controls) from China. RESULTS: We identified no association of rs10447760 in the FOXP2 gene with SCZ (all P>0.05). In addition, a meta-analysis indicated that the SNP rs10447760 was not associated with susceptibility to SCZ in Han Chinese populations (pooled odds ratio=1.44, 95% confidence interval: 0.63-3.31, P=0.39). CONCLUSION: Thus, our results did not support the association between FOXP2 rs10447760 and schizophrenia in a Chinese Han population, and large-scale genetic replication studies with different racial and geographic origins are required in the future. PMID- 29346178 TI - Multiple primary malignancies and prolonged survival in a patient with widespread metastatic cutaneous melanoma. PMID- 29346179 TI - Avstick: An Intravenous Catheter Insertion Simulator for Use with Standardized Patients. AB - An overwhelming majority of hospitalized patients undergo intravenous (IV) catheter insertion in order to receive hydration and necessary medication. Current IV insertion training techniques include manikins that are unable to react or give feedback to the trainee. The Avstick(r) is a realistic training device that can be worn by an actor, allowing a nurse trainee to perform an IV catheter insertion on a live patient without causing the person harm. The purpose of this study is to demonstrate the effectiveness of the Avstick in nursing education to increase nurse-patient communication and trainee self-efficacy. PMID- 29346180 TI - Development of a PD-L1 Complementary Diagnostic Immunohistochemistry Assay (SP142) for Atezolizumab. AB - Cancer immunotherapies, such as atezolizumab, are proving to be a valuable therapeutic strategy across indications, including non-small cell lung cancer (NSCLC) and urothelial cancer (UC). Here, we describe a diagnostic assay that measures programmed-death ligand 1 (PD-L1) expression, via immunohistochemistry, to identify patients who will derive the most benefit from treatment with atezolizumab, a humanized monoclonal anti-PD-L1 antibody. We describe the performance of the VENTANA PD-L1 (SP142) Assay in terms of specificity, sensitivity, and the ability to stain both tumor cells (TC) and tumor infiltrating immune cells (IC), in NSCLC and UC tissues. The reader precision, repeatability and intermediate precision, interlaboratory reproducibility, and the effectiveness of pathologist training on the assessment of PD-L1 staining on both TC and IC were evaluated. We detail the analytical validation of the VENTANA PD-L1 (SP142) Assay for PD-L1 expression in NSCLC and UC tissues and show that the assay reliably evaluated staining on both TC and IC across multiple expression levels/clinical cut-offs. The reader precision showed high overall agreement when compared with consensus scores. In addition, pathologists met the predefined training criteria (>=85.0% overall percent agreement) for the assessment of PD-L1 expression in NSCLC and UC tissues with an average overall percent agreement >=95.0%. The assay evaluates PD-L1 staining on both cell types and is robust and precise. In addition, it can help to identify those patients who may benefit the most from treatment with atezolizumab, although treatment benefit has been demonstrated in an all-comer NSCLC and UC patient population.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc nd/4.0/. PMID- 29346181 TI - 34BetaE12 and Alfa-Methylacyl Coenzyme A Racemase (AMACR) Antibodies Better Than p63 Antibody Distinguish Normal and Neoplastic Glands in Prostatic Tissue With Thermal Artifacts. AB - The occurrence of inked margins with crush artifact derived from the electrocauterization in radical prostatectomy and/or the presence of crushed areas with distorted glands in prostatic samples after transurethral resection of prostate (TURP) can induce a significant interobserver variability during histopathologic evaluation of specimens. The specific immunostaining for basal cell markers 34BetaE12 and p63 and for alfa-methylacyl coenzyme A racemase (AMACR) in neoplastic cells is commonly used as an ancillary tool to establish benign and malignant glands. In this study we carried out the immunohistochemical reactions for p63, 34BetaE12, and AMACR on 3 different and successive paraffin sections to discriminate malignant and benign prostatic glands, distorted and crushed by the thermal artifacts in 60 radical prostatectomies and 50 TURP samples. All prostatic acinar adenocarcinoma showed the loss of basal cell markers and expression of AMACR, whereas p63 failed to stain the basal cell layer in benign crushed prostatic glands. The same cauterized glands were steadily positive for 34BetaE12. The high percentage of p63 false negative cases in benign distorted and crushed glands could be explained by the thermal artifacts which might cause lack of p63 antigenicity. In contrast, the antigenicity of 34BetaE12 and AMACR seem not to be affected by cautery artifacts. Thus, in cauterized suspicious prostatic glands an immunohistochemistry panel including, p63, 34BetaE12, and AMACR or only 34BetaE12 is recommended. In addition, after the first evaluation with only p63, we suggest that a separate and confirmatory staining for 34BetaE12 is strongly recommended. PMID- 29346182 TI - Atypical Teratoid Rhabdoid Tumor of the Cauda Equina in a Child: Report of a Very Unusual Case. AB - Atypical teratoid/rhabdoid tumors (AT/RT) are highly aggressive malignant primitive neoplasms that commonly occur in children younger than 2 years of age. The prognosis is generally dismal with a median survival time of <1 year. The majority of AT/RT occur in the posterior fossa and less frequently the supratentorium. Primary pediatric spinal AT/RT are exceedingly rare and only 15 cases have been reported to date. Here we report a very unusual case of primary spinal AT/RT extensively involving the spinal cord from T11 down to the cauda equina. In this patient, the tumor was highly aggressive and resulted in extensive dissemination into the nerve roots and paraspinal soft tissue rapidly resulting in the patient's death 1 month after diagnosis. to the best of our knowledge, this degree of involvement of the spine by a primary AT/RT has not been described before. PMID- 29346183 TI - Near-infrared spectroscopy to predict organ failure and outcome in sepsis: the Assessing Risk in Sepsis using a Tissue Oxygen Saturation (ARISTOS) study. AB - OBJECTIVES: Sepsis is acute organ dysfunction in the setting of infection. An accurate diagnosis is important to guide treatment and disposition. Tissue oxygen saturation (StO2) can be estimated noninvasively by near-infrared spectroscopy (NIRS), and may be an indicator of microcirculatory dysfunction in early sepsis. We aimed to determine the utility of StO2 for sepsis recognition and outcome prediction among patients presenting to the emergency department (ED) with infection. PATIENTS AND METHODS: A multicentre, prospective, observational cohort study recruited patients who were being admitted to hospital with infection. StO2 was measured in the ED using a handheld NIRS device, Inspectra 300. Outcomes were sepsis, defined as an increase in sequential organ failure assessment score of at least 2 points within 72 h, and composite in-hospital mortality/ICU admission at least 3 days. RESULTS: A cohort of 323 participants, median age 64 (interquartile range: 47-77) years, was recruited at three Australian hospitals. 143 (44%) fulfilled the criteria for sepsis and 22 (7%) died within 30 days. The mean+/-SD StO2 was 74+/-8% in sepsis and 78+/-7% in nonsepsis (P<0.0001). StO2 correlated with the peak sequential organ failure assessment score (Spearman's rho -0.27, P<0.0001). Area under the receiver operating characteristic curve was 0.66 (95% confidence interval: 0.60-0.72) for sepsis and 0.66 (0.58-0.75) for the composite outcome. StO2 less than 75% had an odds ratio of 2.67 (1.45-4.94; P=0.002), for the composite outcome compared with StO2 at least 75%. CONCLUSION: NIRS-derived StO2 correlates with organ failure and is associated with outcome in sepsis. However, its ability to differentiate sepsis among ED patients with infection is limited. NIRS cannot be recommended for this purpose. PMID- 29346184 TI - Synergistic Impact of Training Followed by On-Site Support on HIV Clinical Practice: A Mixed-Design Study in Uganda With Pre/Post and Cluster-Randomized Trial Components. AB - BACKGROUND: Task shifting can expand antiretroviral therapy access, but little is known about effective approaches to improve clinical practice among midlevel practitioners (MLPs) such as clinical officers, nurses, and midwives. The Integrated Infectious Diseases Capacity Building Evaluation compared training alone with training combined with on-site support (OSS). METHODS: Two MLPs each from 36 health facilities attended the 5-week Integrated Management of Infectious Disease training. After training, 18 facilities randomly assigned to arm A received OSS for 9 months, whereas 18 arm B facilities did not. Clinical faculty assessed MLP HIV clinical practice on 6 tasks: history taking, physical examination, laboratory investigations, diagnosis, treatment, and patient education. We analyzed the effect of training alone and training combined with OSS as the pre/post change within each arm. We analyzed the incremental effect of OSS with a difference-in-difference analysis that compared changes between arms. RESULTS: Training alone and training combined with OSS significantly improved clinical practice in patient history taking (13% and 24% increase, respectively), physical examination (54% and 71%), laboratory investigations (32% and 20%), and diagnosis (31% and 51%). Combined training and OSS also improved patient education significantly (72% increase). Effect sizes for training combined with OSS were larger than for training alone except for laboratory investigations, and the effects were robust in sensitivity analyses. The incremental effect of OSS on diagnosis was significant [adjusted relative risk = 1.23; 95% confidence interval = 1.00 to 1.50]. CONCLUSIONS: Combined training and OSS improved MLP HIV clinical practice over training alone and can contribute to continued expansion of access to antiretroviral therapy. PMID- 29346185 TI - Brief Report: Higher ART Adherence Is Associated With Lower Systemic Inflammation in Treatment-Naive Ugandans Who Achieve Virologic Suppression. AB - BACKGROUND: Residual systemic inflammation persists despite suppressive antiretroviral therapy (ART) and is associated with non-AIDS clinical outcomes. We aimed to evaluate the association between ART adherence and inflammation in Ugandans living with HIV who were predominantly receiving nevirapine-based ART with a thymidine analog backbone and were virologically suppressed by conventional assays. METHODS: Plasma concentrations of interleukin-6 (IL-6), D dimer, soluble (s)CD14, sCD163, and the kynurenine/tryptophan ratio, in addition to CD8 T-cell activation, were measured at baseline and 6 months after ART initiation in treatment-naive adults who achieved an undetectable plasma HIV RNA (<400 copies/mL) at their 6-month visit. Adherence was measured through medication event monitoring system and calculated as the ratio of observed/prescribed device openings per participant. We fit adjusted linear regression models to estimate the association between ART adherence and the log transformed plasma concentrations of inflammatory biomarkers. RESULTS: We evaluated 282 participants (median age, 35 years; 70% women). The median (interquartile range) adherence was 93% (84-98). In the adjusted analyses, for every 10% increase in average ART adherence, we found a 15% [P < 0.0001; 95% confidence interval (CI), -21.0 to -7.9], 11% (P = 0.017; 95% CI, -18.3 to -2.0), and 3% (P = 0.028; 95% CI, -5.0 to -0.3) decrease in IL-6, D-dimer, and sCD14, respectively. CONCLUSIONS: Higher ART adherence was associated with lower levels of biomarkers of inflammation, immune activation, and coagulopathy among Ugandans living with HIV who achieved viral suppression shortly after ART initiation. This suggests that ART adherence could have biological consequences beyond viral suppression. Whether ART adherence optimization in virologically suppressed individuals could reduce residual inflammation remains unknown. PMID- 29346186 TI - Fall Rates in Urban and Rural Nursing Units: Does Location Matter? AB - Patient falls remain a leading adverse event in hospitals. In a study of 65 rural hospitals with 222 nursing units and 560 urban hospitals with 4274 nursing units, we found that geographic region, unit type, and nurse staffing, education, experience, and outcomes were associated with fall rates. Implications include specific attention to fall prevention in rehabilitation units, creating better work environments that promote nurse retention, and provide RN-BSN educational opportunities. PMID- 29346187 TI - Quality in Postoperative Patient Handover: Different Perceptions of Quality Between Transferring and Receiving Nurses. AB - BACKGROUND: A safe and efficient patient handover is important to ensure high quality patient care and reduce the risk of patient harm. Few studies have explored handover activities beyond information transfer. PURPOSE: The aims were to assess overall postoperative handover quality and relate quality assessments to handover circumstances, conduct, and teamwork and to compare transferring and receiving nurses' evaluations of handover quality. METHOD: This was a cross sectional study using the Norwegian Handover Quality Rating Form (N-HQRF). In addition, data were collected on nurses' evaluations of the patient condition, handover preparation, and participating nurses' clinical experience. RESULTS: Although total perceived handover quality was high in a large majority of cases, there were significant differences between transferring and receiving nurses' evaluations of the same handover. Lower-quality handovers had a higher frequency of time pressure, uncertainty, and patient-related problems. CONCLUSION: The findings point to the need to assess handover quality in a wider perspective. Handover circumstances might impact handover quality and should be considered when procedures for handover quality are designed and implemented. PMID- 29346188 TI - Evaluation of Role Acquisition and Preparation for the CNL Certification Examination Through an Online Immersion Course. PMID- 29346190 TI - Why Don't Hospitals Prioritize Substance Abuse in Their Community Benefit Programming? AB - The goal of this study was to understand whether Appalachian Ohio hospitals prioritized substance abuse in their IRS-mandated community health needs assessments (CHNAs) and if not, what factors were important in this decision. Analysis of CHNA reports from all 28 hospitals in the region supplemented interview data from in-depth phone interviews, with 17 participants tasked with overseeing CHNAs at 21 hospitals. The CHNA reports show that hospitals in this region prioritize substance abuse and mental health less often than access to care and obesity. Interviews suggest 4 reasons: lack of resources, risk aversion, concern about hospital expertise, and stigma related to substance abuse. Hospitals are playing a larger role in public health as a result of CHNA requirements but resist taking on challenging problems such as substance abuse. The report concludes by summarizing concrete steps to ensure that community benefit efforts address pressing health problems. The implications of this study are manifest in concrete recommendations for encouraging hospitals to address pressing health problems in their community benefit efforts. PMID- 29346191 TI - The Four Corners Sign: A Specific Imaging Feature in Differentiating Systemic Sclerosis-related Interstitial Lung Disease From Idiopathic Pulmonary Fibrosis. AB - PURPOSE: Differentiating between systemic sclerosis-related interstitial lung disease (SSc-ILD) and idiopathic pulmonary fibrosis (IPF) is important because of the differences in workup, prognosis, and treatment. However, there is much overlap in the appearance of these 2 entities on high-resolution computed tomography. We propose that inflammation and/or fibrosis focally or disproportionately involving the bilateral anterolateral upper lobes and posterosuperior lower lobes ["Four Corners" Sign (FCS)] is specific for SSc-ILD. MATERIALS AND METHODS: Randomized high-resolution computed tomography studies from 74 IPF and 73 SSc-ILD cases were evaluated by 2 thoracic radiologists blinded to all patient data. For each case the reviewers noted whether the FCS was present and assigned a confidence level on the basis of a 7-point Likert scale. The same process was then performed on a randomized external validation group of 42 SSc-ILD and 42 IPF cases. RESULTS: For Likert scores of 6 or 7 ("mostly agree" or "entirely agree" that the FCS is present, respectively) the sensitivity in SSc was 16.4% (95% confidence interval, 9.7%, 26.6%), specificity 100.0% (95% confidence interval, 95.1%, 100.0%). There was a significant association between a confidently present FCS and SSc compared with a confidently present FCS and IPF (P=0.0003). Analysis on an external validation group of 42 SSc and 42 IPF cases conferred similarly high specificity for SSc in cases characterized as FCS with high confidence. CONCLUSION: The FCS, a pattern of focal or disproportionate inflammation and/or fibrosis involving the bilateral anterolateral upper lobes and posterosuperior lower lobes, is specific for SSc ILD when readers are confident of its presence. PMID- 29346189 TI - The Impact of Implementing Tobacco Control Policies: The 2017 Tobacco Control Policy Scorecard. AB - The Tobacco Control Scorecard, published in 2004, presented estimates of the effectiveness of different policies on smoking rates. Since its publication, new evidence has emerged. We update the Scorecard to include recent studies of demand reducing tobacco policies for high-income countries. We include cigarette taxes, smoke-free air laws, media campaigns, comprehensive tobacco control programs, marketing bans, health warnings, and cessation treatment policies. To update the 2004 Scorecard, a narrative review was conducted on reviews and studies published after 2000, with additional focus on 3 policies in which previous evidence was limited: tobacco control programs, graphic health warnings, and marketing bans. We consider evaluation studies that measured the effects of policies on smoking behaviors. Based on these findings, we derive estimates of short-term and long term policy effect sizes. Cigarette taxes, smoke-free air laws, marketing restrictions, and comprehensive tobacco control programs are each found to play important roles in reducing smoking prevalence. Cessation treatment policies and graphic health warnings also reduce smoking and, when combined with policies that increase quit attempts, can improve quit success. The effect sizes are broadly consistent with those previously reported for the 2004 Scorecard but now reflect the larger evidence base evaluating the impact of health warnings and advertising restrictions. PMID- 29346192 TI - Image Quality, Overall Evaluability, and Effective Radiation Dose of Coronary Computed Tomography Angiography With Prospective Electrocardiographic Triggering Plus Intracycle Motion Correction Algorithm in Patients With a Heart Rate Over 65 Beats Per Minute. AB - PURPOSE: Recently, a new intracycle motion correction algorithm (MCA) was introduced to reduce motion artifacts from heart rate (HR) in coronary computed tomography angiography (cCTA). The aim of the study was to evaluate the image quality, overall evaluability, and effective radiation dose (ED) of cCTA with prospective electrocardiographic (ECG) triggering plus MCA as compared with standard protocol with retrospective ECG triggering in patients with HR>=65 bpm. MATERIALS AND METHODS: One hundred consecutive patients (67+/-10 y) scheduled for cCTA with 65= 30. In research-related hypothesis testing, the term "statistically significant" is used to describe when an observed difference or association has met a certain threshold. This significance threshold or cut-point is denoted as alpha (alpha) and is typically set at .05. When the observed P value is less than alpha, one rejects the null hypothesis (Ho) and accepts the alternative. Clinical significance is even more important than statistical significance, so treatment effect estimates and confidence intervals should be regularly reported. A type I error occurs when the Ho of no difference or no association is rejected, when in fact the Ho is true. A type II error occurs when the Ho is not rejected, when in fact there is a true population effect. Power is the probability of detecting a true difference, effect, or association if it truly exists. Sample size justification and power analysis are key elements of a study design. Ethical concerns arise when studies are poorly planned or underpowered. When calculating sample size for comparing groups, 4 quantities are needed: alpha, type II error, the difference or effect of interest, and the estimated variability of the outcome variable. Sample size increases for increasing variability and power, and for decreasing alpha and decreasing difference to detect. Sample size for a given relative reduction in proportions depends heavily on the proportion in the control group itself, and increases as the proportion decreases. Sample size for single-group studies estimating an unknown parameter is based on the desired precision of the estimate. Interim analyses assessing for efficacy and/or futility are great tools to save time and money, as well as allow science to progress faster, but are only 1 component considered when a decision to stop or continue a trial is made. PMID- 29346211 TI - Intratidal Analysis of Intraoperative Respiratory System Mechanics. PMID- 29346212 TI - Intratidal Analysis of Intraoperative Respiratory System Mechanics: Keep it Simple. PMID- 29346213 TI - Self-Esteem and Anger in Borderline Patients With Self-Injury Behavior. AB - Anger and low self-esteem characterize borderline individuals, yet little is known about their role and impact in the presence or absence of self-injury behavior. The present study aimed to investigate the impact of anger and self esteem in borderline patients and whether these variables distinguish these patients with and without self-injury. Patients were recruited from a psychiatric service and were evaluated for self-esteem and anger. Additionally, impulsivity and symptoms were assessed. Two groups were compared, one with self-injurious behavior (n = 18) and another one without it (n = 23). Those who injure themselves seem to have a lower self-esteem (p < 0.001), yet the strengthening of self-esteem seems to have different outcomes, according to the presence or absence of self-injury. Anger and self-esteem seem to influence the severity of diagnosis, but only in patients who self-injure. Anger and self-esteem may influence borderline patients differently according to the presence or absence of self-injury. PMID- 29346214 TI - Validation of Biomarkers for Early Detection of Pancreatic Cancer: Summary of The Alliance of Pancreatic Cancer Consortia for Biomarkers for Early Detection Workshop. AB - Pancreatic cancer is the third leading cause of cancer death in the United States, and the 5-year relative survival for patients diagnosed with pancreatic cancer is less than 10%. Early intervention is the key to a better survival outcome. Currently, there are no biomarkers that can reliably detect pancreatic cancer at an early stage or identify precursors that are destined to progress to malignancy. The National Cancer Institute in partnership with the Kenner Family Research Fund and the Pancreatic Cancer Action Network convened a Data Jamboree on Biomarkers workshop on December 5, 2016, to discuss and evaluate existing or newly developed biomarkers and imaging methods for early detection of pancreatic cancer. The primary goal of this workshop was to determine if there are any promising biomarkers for early detection of pancreatic cancer that are ready for clinical validation. The Alliance of Pancreatic Cancer Consortia for Biomarkers for Early Detection, formed under the auspices of this workshop, will provide the common platform and the resources necessary for validation. Although none of the biomarkers evaluated seemed ready for a large-scale biomarker validation trial, a number of them had sufficiently high sensitivity and specificity to warrant additional research, especially if combined with other biomarkers to form a panel. PMID- 29346215 TI - Challenges and Perspectives for Immunotherapy in Adenocarcinoma of the Pancreas: The Cancer Immunity Cycle. AB - Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease with a devastating 5 year overall survival of only approximately 7%. Although just 4% of all malignant diseases are accounted to PDAC, it will become the second leading cause of cancer related deaths before 2030. Immunotherapy has proven to be a promising therapeutic option in various malignancies such as melanoma, non-small cell lung cancer (NSCLC), microsatellite instability-high gastrointestinal cancer, urinary tract cancer, kidney cancer, and others. In this review, we summarize recent findings about immunological aspects of PDAC with the focus on the proposed model of the "cancer immunity cycle". By this model, a deeper understanding of the underlying mechanism in achieving a T-cell response against cancer cells is provided. There is currently great interest in the field around designing novel immunotherapy combination studies for PDAC based on a sound understanding of the underlying immunobiology. PMID- 29346217 TI - Pathological and Molecular Aspects to Improve Endoscopic Ultrasonography-Guided Fine-Needle Aspiration From Solid Pancreatic Lesions. AB - Endoscopic ultrasonography-guided fine-needle aspiration (EUS-FNA) has been applied to pancreatic lesions since the 1990s, and its use is now widespread. Improvements in endoscopic devices and sampling techniques have resulted in excellent diagnostic ability for solid pancreatic lesions. However, clinical improvements alone are not responsible for it; pathological aspects have also played important roles. Rapid on-site evaluation minimizes endoscopic procedures, although its value at improving the diagnostic ratio is still debated. Diagnostic efficacy differs by sample preparations (direct smear, cytospin, liquid-based cytology, cell block, and biopsy) and by staining methods (Papanicoloau, Diff Quik, hematoxylin-eosin, and Giemsa). Several immunocytochemistry protocols aid in diagnosing epithelial components with cytological atypia and in differentiating various tumor types. One cytopathology diagnostic system is telecytology, which uses transmitted digital images and enables real-time diagnosis of EUS-FNA samples by expert cytologists at remote locations. However, EUS-FNA samples are useful for more than just diagnoses, as molecular analysis of these samples allows the identification of prognostic markers, such as genetic alterations in K-ras and EGFR. Expression of drug-metabolizing enzymes, human equilibrative nucleoside transporter 1, correlates with the response to gemcitabine-based chemotherapy. These pathology efforts have enhanced the diagnostic efficacy of EUS-FNA, thereby leading to better outcomes for patients with pancreatic diseases. PMID- 29346216 TI - Obesity and Pancreatic Cancer: Overview of Epidemiology and Potential Prevention by Weight Loss. AB - Currently, there are no effective preventive strategies for pancreatic cancer. Obesity has been increasingly recognized as a strong but modifiable risk factor of pancreatic cancer. In this article, we aim to review the literature regarding weight loss on prevention of pancreatic cancer. Epidemiological and laboratory studies have shown that obesity is associated with increased incidence of pancreatic cancer and potentially worse cancer outcome. Whereas the underlying pathomechanisms remain unclear, chronic inflammation, insulin resistance, and altered intestinal microbiota are all implicated in the carcinogenic effect of obesity. Weight loss, especially the durable and significant weight loss after bariatric surgery, has been shown to reduce the risks of multiple cancers and may become a good intervention for pancreatic cancer prevention. PMID- 29346218 TI - Predicting Pancreatitis Phenotype Based on a Shared Genotype. PMID- 29346219 TI - Pancreatic Metastases as the Initial Manifestation of a Neuroendocrine Carcinoma of the Uterine Cervix. PMID- 29346220 TI - TRO40303 Ameliorates Alcohol-Induced Pancreatitis Through Reduction of Fatty Acid Ethyl Ester-Induced Mitochondrial Injury and Necrotic Cell Death: Erratum. PMID- 29346221 TI - A Validation Argument for a Simulation-Based Training Course Centered on Assessment, Recognition, and Early Management of Pediatric Sepsis. AB - INTRODUCTION: Early recognition of sepsis remains one of the greatest challenges in medicine. Novice clinicians are often responsible for the recognition of sepsis and the initiation of urgent management. The aim of this study was to create a validity argument for the use of a simulation-based training course centered on assessment, recognition, and early management of sepsis in a laboratory-based setting. METHODS: Five unique simulation scenarios were developed integrating critical sepsis cues identified through qualitative interviewing. Scenarios were piloted with groups of novice, intermediate, and expert pediatric physicians. The primary outcome was physician recognition of sepsis, measured with an adapted situation awareness global assessment tool. Secondary outcomes were physician compliance with pediatric advanced life support (PALS) guidelines and early sepsis management (ESM) recommendations, measured by two internally derived tools. Analysis compared recognition of sepsis by levels of expertise and measured association of sepsis recognition with the secondary outcomes. RESULTS: Eighteen physicians were recruited, six per study group. Each physician completed three sepsis simulations. Sepsis was recognized in 19 (35%) of 54 simulations. The odds that experts recognized sepsis was 2.6 [95% confidence interval (CI) = 0.5-13.8] times greater than novices. Adjusted for severity, for every point increase in the PALS global performance score, the odds that sepsis was recognized increased by 11.3 (95% CI = 3.1-41.4). Similarly, the odds ratio for the PALS checklist score was 1.5 (95% CI = 0.8-2.6). Adjusted for severity and level of expertise, the odds of recognizing sepsis was associated with an increase in the ESM checklist score of 1.8 (95% CI = 0.9-3.6) and an increase in ESM global performance score of 4.1 (95% CI = 1.7-10.0). CONCLUSIONS: Although incomplete, evidence from initial testing suggests that the simulations of pediatric sepsis were sufficiently valid to justify their use in training novice pediatric physicians in the assessment, recognition, and management of pediatric sepsis. PMID- 29346222 TI - "To Err Is Human" but Disclosure Must be Taught: A Simulation-Based Assessment Study. AB - INTRODUCTION: Although error disclosure is critical in promoting safety and patient-centered care, physicians are inconsistently trained in its practice, and few objective methods to assess competence exist. We used an immersive simulation scenario to determine whether providers with varying levels of clinical experience adhere to the disclosure safe practice guidelines when exposed to a serious adverse event simulation scenario. METHODS: This was a prospective cohort study with medical students, junior emergency medicine (EM) residents (PGY 1-2), senior EM residents (PGY 3-4), and attending EM physicians participating in a simulated case in which a scripted medication overdose resulted in an adverse event. Each scenario was videotaped and scored by two expert raters based on a 6 component, 21-point disclosure assessment instrument. RESULTS: There were 12 participants in each study group (N = 48). There was good interrater reliability (kappa = 0.70). Total scores improved significantly as the level of training increased: medical student = 10.3 (2.7), PGY 1-2 = 12.3 (6.2), PGY 3-4 = 13.7 (3.2), and attending physicians = 12.8 (3.7) (P = 0.03). Seventy-five percent of participants did not address preventing recurrence of the error. Fifty-six percent offered no apology or only offered it with prompting from the patient; only 23% offered an apology with the initial disclosure. CONCLUSIONS: We demonstrated suboptimal adherence to best practices guidelines for error disclosure when providers are assessed in an immersive simulation setting. Despite a correlation in performance of medical error disclosure with increased physician experience, this study suggests that healthcare providers may need additional training to comply with safe practice guidelines for disclosure of unanticipated adverse events. PMID- 29346223 TI - Learner-Adaptive Educational Technology for Simulation in Healthcare: Foundations and Opportunities. AB - STATEMENT: Despite evidence that learners vary greatly in their learning needs, practical constraints tend to favor ''one-size-fits-all'' educational approaches, in simulation-based education as elsewhere. Adaptive educational technologies - devices and/or software applications that capture and analyze relevant data about learners to select and present individually tailored learning stimuli - are a promising aid in learners' and educators' efforts to provide learning experiences that meet individual needs. In this article, we summarize and build upon the 2017 Society for Simulation in Healthcare Research Summit panel discussion on adaptive learning. First, we consider the role of adaptivity in learning broadly. We then outline the basic functions that adaptive learning technologies must implement and the unique affordances and challenges of technology-based approaches for those functions, sharing an illustrative example from healthcare simulation. Finally, we consider future directions for accelerating research, development, and deployment of effective adaptive educational technology and techniques in healthcare simulation. PMID- 29346224 TI - Tipping the Scales: Prioritizing Mentorship and Support in Simulation Faculty Development. PMID- 29346225 TI - Validating Lung Models Using the ASL 5000 Breathing Simulator. AB - OBJECTIVE: This study sought to validate pediatric models with normal and altered pulmonary mechanics. METHODS: PubMed and CINAHL databases were searched for studies directly measuring pulmonary mechanics of healthy infants and children, infants with severe bronchopulmonary dysplasia and neuromuscular disease. The ASL 5000 was used to construct models using tidal volume (VT), inspiratory time (TI), respiratory rate, resistance, compliance, and esophageal pressure gleaned from literature. Data were collected for a 1-minute period and repeated three times for each model. t tests compared modeled data with data abstracted from the literature. Repeated measures analyses evaluated model performance over multiple iterations. Statistical significance was established at a P value of less than 0.05. RESULTS: Maximum differences of means (experimental iteration mean - clinical standard mean) for TI and VT are the following: term infant without lung disease (TI = 0.09 s, VT = 0.29 mL), severe bronchopulmonary dysplasia (TI = 0.08 s, VT = 0.17 mL), child without lung disease (TI = 0.10 s, VT = 0.17 mL), and child with neuromuscular disease (TI = 0.09 s, VT = 0.57 mL). One-sample testing demonstrated statistically significant differences between clinical controls and VT and TI values produced by the ASL 5000 for each iteration and model (P < 0.01). The greatest magnitude of differences was negligible (VT < 1.6%, TI = 18%) and not clinically relevant. CONCLUSIONS: Inconsistencies occurred with the models constructed on the ASL 5000. It was deemed accurate for the study purposes. It is therefore essential to test models and evaluate magnitude of differences before use. PMID- 29346226 TI - Preparing Physiotherapy Students for Clinical Placement: Student Perceptions of Low-Cost Peer Simulation. A Mixed-Methods Study. AB - INTRODUCTION: Simulation is increasingly used in health care education, yet the organizational and financial costs can be prohibitive. This study aimed to investigate whether peer simulation is perceived by third-year undergraduate physiotherapy students as valuable for clinical placement preparation. METHODS: Third-year undergraduate physiotherapy students participated in a 9-week peer simulation program, using each other as patients, and were invited to complete two surveys evaluating perceptions of the program. The program consisted of weekly patient interactions during which students were required to assess and treat a "patient" under strict simulation guidelines and in accordance with stated learning objectives. Items rated included self-perceived skills, confidence, time management, and clinical placement readiness and included collection of qualitative responses. Surveys were released at commencement and completion of the simulation program. RESULTS: Of 79 third-year students, 63% completed survey 1 and 66% completed survey 2. Students had high expectations of the program and these were consistently met. Peer simulation rated highly for all items, including identifying knowledge and skill deficits, and improving confidence, clinical reasoning, time management, and communication. Simulation was considered safe, supportive, engaging, and valuable for clinical placement preparation. Students identified some lack of authenticity when working with peers. CONCLUSIONS: Peer simulation was perceived by students as valuable in preparing them for clinical placement, despite a perceived lack of realism. These findings support the use of peer simulation as an alternative to the use of more formalized standardized patients in an undergraduate physiotherapy program. Further investigation is required to establish a detailed cost analysis of the program and to determine the amount of realism required to optimize the benefits of this promising educational strategy. PMID- 29346227 TI - Refractory Pain Management in Amyloid-Associated Peripheral Neuropathy. AB - OBJECTIVE: Systemic amyloidosis is a disease that often involves multiple organ systems, including the peripheral nervous system. Patients may present with severe, refractory neuropathic pain; however, the optimal treatment approach for pain for these patients remains unclear. CASE REPORT: A man with severe, refractory neuropathic pain in his bilateral upper and lower extremities and the trunk secondary to amyloid neuropathy is presented. Multiple medication trials, including neuropathic and opioid agents, produced considerable adverse effects and minimal relief. Scrambler therapy, a novel electrical stimulation modality, was used and was associated with substantial short-term but nonsustained benefit. Spinal cord stimulation was considered, but given his diffuse symptoms, it was deemed a less-than-optimal approach. Ultimately, an intrathecal drug delivery system was placed with infusion of hydromorphone, resulting in substantial pain reduction in all involved areas and with an improved adverse effect profile. This intervention resulted in immense improvement in the patient's quality of life, despite progression of his systemic amyloidosis. CONCLUSIONS: Severe pain in the setting of amyloid neuropathy is often difficult to treat. To our knowledge, this represents the first report of Scrambler therapy or an implanted intrathecal drug delivery system used for a patient with refractory amyloidosis-related neuropathic pain, resulting in substantial analgesic benefit and improved quality of life. PMID- 29346228 TI - Analgesia of Combined Femoral Triangle and Obturator Nerve Blockade Is Superior to Local Infiltration Analgesia After Total Knee Arthroplasty With High-Dose Intravenous Dexamethasone. AB - BACKGROUND AND OBJECTIVES: High-dose intravenous dexamethasone reduces the postoperative opioid requirement and is often included in the multimodal analgesia strategy after total knee arthroplasty (TKA). Combined obturator nerve and femoral triangle blockade (OFB) reduces the opioid consumption and pain after TKA better than local infiltration analgesia (LIA). The question is whether preoperative high-dose intravenous dexamethasone would cancel out the superior analgesic effect of OFB compared with LIA. The aim was to evaluate the analgesic effect of OFB versus LIA after TKA when all patients received high-dose intravenous dexamethasone. METHODS: Eighty-two patients were randomly assigned either to OFB or LIA after primary unilateral TKA. All patients received 16 mg dexamethasone. Primary outcome was morphine consumption via patient-controlled analgesia during the first 20 postoperative hours. Secondary outcomes were pain, nausea, dizziness, and length of hospital stay. RESULTS: Seventy-four patients were included in the analysis. Median total intravenous morphine consumption during the first 20 postoperative hours was 6 mg (interquartile range [IQR], 2-18 mg) in the OFB group and 20 mg (IQR, 12-28 mg) in the LIA group. The 14-mg difference (95% confidence interval, 6.4-18.0 mg) was significant (P < 0.001). There was no difference in pain score at rest at 20 hours postoperatively: 2 (IQR, 1-4) in the OFB group and 3 (IQR, 2-5) in the LIA group. CONCLUSIONS: Combined OFB reduces morphine consumption better than LIA after TKA even when all patients received high-dose intravenous dexamethasone. CLINICAL TRIAL REGISTRATION: This study was registered at ClinicalTrials.gov, identifier NCT02374008. PMID- 29346229 TI - Anatomical Variations of the Vertebral Artery in the Upper Cervical Spine: Clinical Relevance for Procedures Targeting the C1/C2 and C2/C3 Joints. AB - BACKGROUND AND OBJECTIVES: Accidental breach of the vertebral artery (VA) during the performance of cervical pain blocks can result in significant morbidity. Whereas anatomical variations have been described for the foraminal (V2) segment of the VA, those involving its V3 portion (between the C2 transverse process and dura) have not been investigated and may be of importance for procedures targeting the third occipital nerve or the lateral atlantoaxial joint. METHODS: Five hundred computed tomography angiograms of the neck performed in patients older than 50 years for the management of cerebrovascular accident or cervical trauma (between January 2010 and May 2016) were retrospectively and independently reviewed by 2 neuroradiologists. Courses of the VA in relation to the lateral aspect of the C2/C3 joint and the posterior surface of the C1/C2 joint were examined. For the latter, any medial encroachment of the VA (or one of its branches) was noted. The presence of a VA loop between C1 and C2 and its distance from the upper border of the superior articular process (SAP) of C3 were also recorded. If the VA loop coursed posteriorly, its position in relation to 6 fields found on the lateral aspects of the articular pillars of C2 and C3 was tabulated. RESULTS: At the C1/C2 level, the VA coursed medially over the lateral quarter of the dorsal joint surface in 1% of subjects (0.6% and 0.4% on the left and right sides, respectively; P = 0.998). A VA loop originating between C1 and C2 was found to travel posteroinferiorly over the anterolateral aspect of the inferior articular pillar of C2 in 55.5% of patients on the left and 41.9% on the right side (P < 0.001), as well as over the SAP of C3 in 0.4% of subjects. When present in the quadrant immediately cephalad to the C3 SAP, VA loops coursed within 2.0 +/- 1.5 and 3.3 +/- 2.5 mm on the left and right sides, respectively, of its superior aspect (P < 0.001). CONCLUSIONS: The VA commonly travels adjacent to areas targeted by third occipital nerve procedures and more rarely over the access point for lateral atlantoaxial joint injections. Modifications to existing techniques may reduce the risk of accidental VA breach. PMID- 29346230 TI - Chronic Hematoma of the Neck. AB - Chronic hematomas are defined as hematomas with slow, progressive growth over many weeks. They are an extremely rare cause of acute neck swelling in the pediatric population. They consist of an organized central mass of blood with granulation tissue and fibrotic changes peripherally. The presence of a capsule prevents resorption but allows for intracapsular bleeding with subsequent expansion. We describe a case of a 6-year-old girl who presented to the emergency department with a spontaneously occurring left neck mass in the supraclavicular region. A possible neoplasm was suggested on imaging. The patient was referred to a head and neck surgeon, she underwent a thorough workup, and the mass was ultimately surgically excised. Histologically, the mass was confirmed to be a chronic hematoma. The patient recovered uneventfully, and there has been no recurrence. PMID- 29346231 TI - The Complex Association of Race/Ethnicity With Pain Treatment Quality in an Urban Medical Center With 2 Pediatric Emergency Departments. AB - OBJECTIVE: This study aimed to explore racial differences in analgesia quality. METHODS: A retrospective cross-sectional study of 24,733 visits by individuals 21 years or younger with pain scores of 4 to 10 was performed using electronic medical records. We compared 2 process metrics, treatment with any analgesics within 60 minutes and treatment with opioids within 60 minutes, and one outcome metric, a reduction in pain score by 2 or more points within 90 minutes. Multivariable logistic regression adjusted for the effects of patient characteristics and health status. We also determined variations in analgesia quality among those with severe pain. RESULTS: When compared with white children, black children were more likely to receive any analgesia (adjusted odds ratio [aOR], 1.94; 95% confidence interval, 1.71-2.21), but both blacks (aOR, 0.66; 0.51-0.85) and Hispanics (aOR, 0.56; 0.39-0.80) were less likely to receive opioids. Blacks were more likely to reduce their pain score (aOR, 1.50; 1.28 1.76).Among children with severe pain, both blacks and Hispanics were more likely to receive any analgesia (black: aOR, 2.05 [1.71-2.46]; Hispanic: aOR, 1.29 [1.05 1.59]), and Hispanic children were less likely to receive opioids (aOR, 0.58; 0.37-0.91). Again, black children were more likely to reduce their pain score (aOR, 1.42; 1.13-1.79). CONCLUSIONS: The relationship between race/ethnicity and analgesia is complex. Although minority children were less likely to receive opioids, black children had better treatment outcomes. Future studies should explore clinical response to analgesia in addition to process measures to better understand if differential treatment may be justified to achieve equitable care outcomes. PMID- 29346232 TI - Use of Point-of-Care Ultrasound to Guide Pediatric Gastrostomy Tube Replacement in the Emergency Department. AB - The presentation of a pediatric patient to the emergency department for a malfunctioning or dislodged gastrostomy tube (G-tube) is not uncommon. As such, these tubes are often replaced at the bedside. Improper placement can result in a number of complications, including perforation, fistula tract formation, peritonitis, and sepsis. The current criterion standard method to confirm proper G-tube placement is contrast-enhanced radiography. However, point-of-care ultrasound may be an alternative method to guide and confirm pediatric G-tube replacement in the emergency department. We report a series of cases on this novel point-of-care ultrasound application. PMID- 29346233 TI - Video Recordings to Analyze Preventable Management Errors in Pediatric Resuscitation Bay. AB - OBJECTIVE: In treating patients of different ages and diseases in the pediatric resuscitation bay, management errors are common. This study aimed to analyze the adherence to advanced trauma life support and pediatric advanced life support guidelines and identify management errors in the pediatric resuscitation bay by using video recordings. METHODS: Video recording of all patients admitted to the pediatric resuscitation bay at University Children's Hospital Zurich during a 13 month period was performed. Treatment adherence to advanced trauma life support guidelines and pediatric advanced life support guidelines and errors per patient were identified. RESULTS: During the study period, 128 patients were recorded (65.6% with surgical, 34.4% with medical diseases). The most common causes for admission were traumatic brain injury (21.1%), multiple trauma (20.3%), and seizures (14.8%). There was a statistically significant correlation between accurate handover from emergency medical service to hospital physicians and adherence to airway, breathing, circulation, and disability sequence (correlation coefficient [CC], 0.205; P = 0.021), existence of a defined team leader and adherence to airway, breathing, circulation, and disability sequence (CC, 0.856; P < 0.001), and accurate hand over and existence of a defined team leader (CC, 0.186; P = 0.037). Unexpected errors were revealed. Cervical spine examination/stabilization was omitted in 40% of admitted surgical patients, even in 20% of patients with an injury of spine/limbs. CONCLUSIONS: Video recording is a useful tool to evaluate patient management in the pediatric resuscitation bay. Analyzing errors of missing the adherence to the guidelines helps to pay attention and focus on specific items to improve patient care. PMID- 29346234 TI - A Qualitative Study of Multidisciplinary Providers' Experiences With the Transfer Process for Injured Children and Ideas for Improvement. AB - OBJECTIVE: Most injured children initially present to a community hospital, and many will require transfer to a regional pediatric trauma center. The purpose of this study was 1) to explore multidisciplinary providers' experiences with the process of transferring injured children and 2) to describe proposed ideas for process improvement. METHODS: This qualitative study involved 26 semistructured interviews. Subjects were recruited from 6 community hospital emergency departments and the trauma and transport teams of a level I pediatric trauma center in New Haven, Conn. Participants (n = 34) included interprofessional providers from sending facilities, transport teams, and receiving facilities. Using the constant comparative method, a multidisciplinary team coded transcripts and collectively refined codes to generate recurrent themes across interviews until theoretical saturation was achieved. RESULTS: Participants reported that the transfer process for injured children is complex, stressful, and necessitates collaboration. The transfer process was perceived to involve numerous interrelated components, including professions, disciplines, and institutions. The 5 themes identified as areas to improve this transfer process included 1) Creation of a unified standard operating procedure that crosses institutions/teams, 2) Enhancing 'shared sense making' of all providers, 3) Improving provider confidence, expertise, and skills in caring for pediatric trauma transfer cases, 4) Addressing organization and environmental factors that may impede/delay transfer, and 5) Fostering institutional and personal relationships. CONCLUSIONS: Efforts to improve the transfer process for injured children should be guided by the experiences of and input from multidisciplinary frontline emergency providers. PMID- 29346236 TI - A Teenager With Acute Anterograde Amnesia. AB - Isolated amnesia is an uncommon presenting complaint in the pediatric age group. We report the case of an 18-year-old woman who presented with the acute onset of memory difficulty and an otherwise normal neurologic examination. Brain magnetic resonance imaging demonstrated inflammation in the bilateral temporal lobes. Serum and cerebrospinal fluid testing ultimately revealed a diagnosis of autoimmune encephalitis. Although rare, the acute onset of isolated amnesia deserves a prompt, comprehensive evaluation. PMID- 29346235 TI - Posttraumatic Stress in Children After Injury: The Role of Acute Pain and Opioid Medication Use. AB - OBJECTIVES: After injury, many children experience posttraumatic stress symptoms (PTSS) that negatively impact recovery. Acute pain and PTSS share neurobiological pathways, and acute dosage of morphine has been linked to reduced PTSS in naturalistic studies. However, the complex interactions between pain, morphine and other opioid use, and PTSS have yet to be investigated in robust pediatric samples.This prospective, longitudinal study examined relationships between acute pain, opioid medications, and PTSS after pediatric injury. METHODS: Ninety-six children aged 8 to 13 years (mean = 10.60, SD = 1.71), hospitalized for unintentional injury, completed assessments at baseline (T1) and 12 weeks (T2) later. Pain ratings and opioid administration data were obtained via chart review. RESULTS: Structural equation modeling revealed that worst pain endorsed during hospitalization was positively associated with concurrent and later PTSS when controlling for evidence-based risk factors (ie, age, sex, prior trauma history, traumatic appraisals of injury event, heart rate). Neither opioid medications overall nor morphine specifically (milligram/kilogram/day) administered during hospitalization mediated the relationship between pain and T2 PTSS. CONCLUSIONS: Pain during hospitalization may increase susceptibility for persistent PTSS above and beyond the influence of other empirical risk factors. Findings suggest that pain assessment may be a useful addition to pediatric PTSS screening tools and highlight the need for additional research on pharmacological secondary prevention approaches. Given that inadequate pain control and persistent PTSS each hinder recovery and long-term functioning, better understanding of interactions between acute pain and PTSS after injury is essential for improving screening, prevention, and early intervention efforts. PMID- 29346237 TI - Pediatric Pelvic Fractures and Differences Compared With the Adult Population. AB - INTRODUCTION: Although pelvic fractures in children are rare, because of anatomical differences between an adult's skeleton and a child's skeleton, these lesions in the pediatric population have specific characteristics that need to be borne in mind when dealing with them. MATERIALS AND METHODS: A retrospective chart review was performed on the pelvic fractures in skeletally immature patients treated in our hospital in the last 20 years. RESULTS: Eighty-one pelvic fractures in children were treated between 1993 and 2013. The mean age was 9.98 years, with 61.7%(50/81) boys and 38.2% (31/81) girls. A traffic accident was the main injury mechanism (74%, 60/81), and height fall was in second place (16%, 13/81). Following Tile pelvic fracture classification, type A2 was the most frequent (58.04%, 47/81); and following Torode and Zieg classification, type IIIA (45.68%, 37/81).Associated injuries were present in 77.8% (63/81) of the patients; fractures of other bones and head trauma were the most frequent. An acetabular fracture was present in 13.5% (11/81) of the patients.Nonsurgical treatment was chosen for all the pelvic fractures except in 4 patients, which required surgical management for their pelvic injuries. Blood transfusion was required in 32% (26/81) of the patients, and arterial embolization was not needed in any case. Furthermore, 11.1% (9/81) required a stay in the pediatric care unit, and the death rate was 8.64% (7/81).The mean length of hospital stay was 12.4 days. CONCLUSIONS: Because of the specific characteristics of pelvic fractures in children, fracture patterns are less severe than those of adults, but the injury mechanisms are high-energy traumas. The rate of associated injuries is very high, and a multidisciplinary management in pediatric trauma centers is needed to treat these patients. PMID- 29346238 TI - Trends in Severe Pediatric Emergency Conditions in a National Cohort, 2008 to 2014. AB - OBJECTIVE: The objective of this study was to determine the incidence and recent trends in serious pediatric emergency conditions. METHODS: We conducted a cross sectional study of the Nationwide Emergency Department Sample from 2008 through 2014, and included patients with age below 18 years with a serious condition, defined as each diagnosis group in the diagnosis grouping system with a severity classification system score of 5. We calculated national incidences for each serious condition using annualized weighted condition counts divided by annual United States census child population counts. We determined the highest-incidence serious conditions over the study period and calculated percentage changes between 2008 and 2014 for each serious condition using a Poisson model. RESULTS: The 2008 incidence of serious conditions across the national child population was 1721 visits per million person-years (95% confidence interval, 1485-1957). This incidence increased to 2020 visits per million person-years (95% confidence interval, 1661-2379) in 2014. The most common serious conditions were serious respiratory diseases, septicemia, and serious neurologic diseases. Anaphylaxis was the condition with the largest change, increasing by 147%, from 101 to 249 visits per million person-years. CONCLUSIONS: The most common serious condition in children presenting to United States emergency departments is serious respiratory disease. Anaphylaxis is the fastest increasing serious condition. Additional research attention to these diagnoses is warranted. PMID- 29346239 TI - FACTORS ASSOCIATED WITH DEVELOPMENT OF DISSOCIATED OPTIC NERVE FIBER LAYER APPEARANCE IN THE PIONEER INTRAOPERATIVE OPTICAL COHERENCE TOMOGRAPHY STUDY. AB - PURPOSE: To assess the relationship of dissociated optic nerve fiber layer (DONFL) and intraoperative membrane-peeling dynamics as visualized using intraoperative optical coherence tomography (OCT), and to evaluate the functional implications of DONFL. METHODS: This was a post hoc analysis of eyes undergoing membrane peeling for vitreomacular interface disorders in the prospective PIONEER intraoperative OCT study. Retinal layer measurements in preincision and postpeel intraoperative OCT images were obtained. The primary outcome was development of DONFL appearance on spectral domain OCT at 6-month follow-up. Secondary outcomes included correlation of DONFL with surgical technique, surgical indication, intraoperative OCT findings, and retinal sensitivity. RESULTS: Ninety-five eyes were included. The prevalence of DONFL at 6 months was 36%. Increased inner retinal layer thickness on intraoperative OCT immediately after membrane peeling was associated with development of DONFL (P < 0.01). Macular hole repair was significantly associated with DONFL appearance. Peel technique (forceps vs. diamond-dusted membrane scraper) was not associated with DONFL. There was no difference in retinal sensitivity or visual acuity between eyes with or without DONFL. CONCLUSION: Acute postpeel increase in inner retinal thickness and macular hole repair were associated with development of DONFL appearance. However, it is unclear whether the surgical indication (e.g., macular hole) or the surgical manipulations performed (e.g., internal limiting membrane peeling) is the major factor that has an impact on DONFL appearance. Overall, these findings suggest that one mechanism in the development of DONFL appearance may be intraoperative trauma to the inner retina, potentially during internal limiting membrane peeling (e.g., macular hole repair). PMID- 29346240 TI - RESPONSE OF INFLAMMATORY CYSTOID MACULAR EDEMA TO TREATMENT USING ORAL ACETAZOLAMIDE. AB - PURPOSE: To determine the treatment effect of oral acetazolamide on refractory inflammatory macular edema. METHODS: A retrospective review of identified patients with uveitic or pseudophakic macular edema treated using acetazolamide between 2007 and 2014. Visual acuity and central macular subfield thickness was determined at baseline and at first follow-up. Baseline optical coherence tomography features were analyzed as predictors of acetazolamide response. RESULTS: Sixteen patients (19 eyes) of 61 screened met all criteria. Mean age was 57.9 years (19.7-81.1). The most common diagnosis was idiopathic uveitis (n = 6, 31.6%). Mean uveitis duration was 4.4 years (0.2-27.5). Average central macular subfield thickness decreased significantly (from 471.8 +/- 110.6 MUm to 358.3 +/- 50.4 MUm) (P < 0.0001). Average visual acuity (logarithm of the minimum angle of resolution) improved significantly from 20/54 (0.43 +/- 0.25) to 20/37 (0.27 +/- 0.16) (P = 0.003). Pretreatment optical coherence tomographies demonstrated intraretinal fluid (n = 19, 100%), subretinal fluid (n = 8, 42.1%), epiretinal membrane (n = 13, 68.3%), and vitreomacular traction (n = 1, 5.2%). No optical coherence tomography characteristic was predictive of a response to therapy. CONCLUSION: There is a significant benefit to vision and central macular subfield thickness after acetazolamide treatment in patients with inflammatory macular edema. In patients with refractory inflammatory macular edema, treatment using acetazolamide can provide anatomical and visual benefit without corticosteroid related adverse effects. PMID- 29346241 TI - CHRONIC CENTRAL SEROUS CHORIORETINOPATHY: Early and Late Morphological and Functional Changes After Verteporfin Photodynamic Therapy. AB - PURPOSE: To describe early and late morphological and functional changes in subjects receiving photodynamic therapy (PDT) for chronic central serous chorioretinopathy. METHODS: Patients with chronic central serous chorioretinopathy were prospectively enrolled and received standard PDT. At the baseline examination, each subject underwent complete ophthalmological examination, including best-corrected visual acuity (BCVA) assessment, fluorescein angiography and indocyanine green angiography, spectral domain optical coherence tomography, and microperimetry. Spectral domain optical coherence tomography, microperimetry, and BCVA assessment were repeated in multiple sections over 7 days after PDT and at 1-, 3-, and 12-month intervals. Main outcome measures were: identification of early changes (1-week examination) in BCVA, retinal sensitivity, and spectral domain optical coherence tomography parameters and their influence on outcomes at the 1-year follow-up. RESULTS: Three main patterns of early response to PDT were identified during the 1-week examination. The neurosensory retinal detachment most frequently decreased rapidly (12/19 pts), with complete resolution in 50% of cases. An increase in neurosensory retinal detachment height was registered in 16% (3/19) of cases, whereas in 21% (4/19), a large fluctuation in neurosensory retinal detachment was encountered. Best-corrected visual acuity declined significantly in 5/12 patients in the first group and was stable or improved in the remaining cases. Overall, retinal sensitivity diminished in 16/19 subjects, with a mean worsening of 2.56 dB (P = 0.0002). At the 12-month examination, final mean BCVA improved by 14.4 letters (P = 0.001) and a similar progressive recovery in the retinal sensitivity was observed (+2.69 dB, P = 0.0039). The neurosensory retinal detachment completely resolved in 18/19 (95%) cases, with a parallel significant reduction in central foveal choroidal thickness (P < 0.0001). CONCLUSION: Three patterns of early response to standard PDT can be identified. Although an early and abrupt reduction in BCVA and retinal sensitivity after treatment is possible, this does not compromise a final improvement in visual functions. PMID- 29346242 TI - PREVALENCE AND CLINICAL CHARACTERISTICS OF PACHYDRUSEN IN POLYPOIDAL CHOROIDAL VASCULOPATHY: Multimodal Image Study. AB - PURPOSE: To investigate the prevalence of a newly defined drusen type, pachydrusen, soft drusen, and subretinal drusenoid deposits in eyes with polypoidal choroidal vasculopathy and fellow eyes and the relationship between each drusen type and the choroidal thickness, vascular morphology, and hyperpermeability. METHODS: The 169 eyes of 90 patients with polypoidal choroidal vasculopathy were retrospectively reviewed. The prevalence of each drusen type was evaluated using color fundus photography and optical coherence tomography. The choroidal thickness and presence of pachyvessels on optical coherence tomography and choroidal vascular hyperpermeability on indocyanine green angiography were compared among the drusen groups. RESULTS: Pachydrusen, soft drusen, and subretinal drusenoid deposits were found in 49.3%, 12.3%, and 6.9% in polypoidal choroidal vasculopathy eyes. The mean subfoveal choroidal thickness of the pachydrusen, soft drusen, and subretinal drusenoid deposit groups was 403.1, 184.4, and 176.4 um. The pachydrusen group showed significantly thicker choroid than the others. The choroidal hyperpermeability was noticed at 41.7%, 0%, and 0% and the pachyvessel was observed at 80.6%, 44.4%, and 40% in pachydrusen, soft drusen, and subretinal drusenoid deposit groups, respectively. CONCLUSION: In patients with polypoidal choroidal vasculopathy, pachydrusen was prevalent and associated with thicker choroid. Polypoidal choroidal vasculopathy with pachydrusen was highly associated with choroidal vascular hyperpremeability and pachyvessel morphology than other types of drusen. PMID- 29346243 TI - PARS PLANA VITRECTOMY WITH ANTERIOR CHAMBER VERSUS GORE-TEX SUTURED POSTERIOR CHAMBER INTRAOCULAR LENS PLACEMENT: LONG-TERM OUTCOMES. AB - PURPOSE: To compare clinical outcomes of combined pars plana vitrectomy (PPV) with anterior chamber intraocular lens (ACIOL) placement versus scleral fixation of a posterior chamber intraocular lens (PCIOL) using Gore-Tex suture. METHODS: Retrospective, interventional case series of eyes undergoing combined PPV and IOL placement for retained lens material, aphakia, or dislocated IOL. Eyes with history of amblyopia, corneal opacity, retinal, or optic nerve disease were excluded. Outcome measures were change in visual acuity and occurrence of postoperative complications with minimum follow-up of 1 year. RESULTS: Sixty three eyes of 60 patients were identified. Thirty-three eyes underwent combined PPV and ACIOL placement and 30 eyes underwent combined PPV and scleral fixation of a PCIOL using Gore-Tex suture. Mean follow-up was 502 +/- 165 days (median 450, range 365-1,095 days). In the ACIOL group, mean visual acuity improved from 20/914 preoperatively to 20/50 postoperatively (P < 0.001). In the scleral fixated PCIOL group, mean visual acuity improved from 20/677 preoperatively to 20/46 postoperatively (P < 0.001). No difference in visual acuity was noted between groups at 1-year (P = 0.91) or final follow-up (P = 0.62). Regarding postoperative complications, eyes undergoing ACIOL placement had a significantly higher rate of transient corneal edema (30.3 vs. 6.7%, P = 0.02) compared with eyes undergoing scleral fixation of a PCIOL. CONCLUSION: Combined PPV with ACIOL placement or scleral fixation of a PCIOL with Gore-Tex suture were well tolerated. The techniques resulted in similar visual outcomes at minimum follow up of 1 year. PMID- 29346244 TI - COMPARING FUNDUS FLUORESCEIN ANGIOGRAPHY AND SWEPT-SOURCE OPTICAL COHERENCE TOMOGRAPHY ANGIOGRAPHY IN THE EVALUATION OF DIABETIC MACULAR PERFUSION. AB - PURPOSE: To compare fundus fluorescein angiography (FFA) and swept-source optical coherence tomography angiography (SS-OCTA) in the evaluation of macular perfusion in diabetic patients. METHODS: Forty-one eyes (21 diabetic patients) seen at Moorfields Eye Hospital (London) over a 1-month interval underwent color fundus photography, FFA, and SS-OCTA imaging of the capillary superficial plexus using 2 different protocols: 3 * 3 mm and 4.5 * 4.5 mm. Quantitative assessment (foveal avascular zone diameters and area), qualitative analysis (macroscopic and microscopic levels) and Early Treatment Diabetic Retinopathy Study diabetic macular ischemia grading were performed. Artifacts were recorded. Intraclass correlation coefficients and weighted kappa values were calculated. RESULTS: Mean (SD) foveal avascular zone area was 0.695 (0.52) mm on FFA, 0.627 (0.54) mm on SS OCTA 3 * 3 and 0.701 (0.54) mm on SS-OCTA 4.5 * 4.5 protocol. Intraclass correlation coefficients showed good agreement between FFA and SS-OCTA for both vertical diameter and foveal avascular zone area measurements. The agreement between SS-OCTA 3 * 3 and 4.5 * 4.5 was good for all quantitative measurements. Weighted kappa for diabetic macular ischemia grading showed low to fair agreement between FFA and SS-OCTA, whereas the agreement was good between two different SS OCTA protocols. CONCLUSION: Swept-source OCTA is a reproducible technique in the assessment of macular perfusion in diabetic patients with special regards to foveal avascular zone analysis. The agreement with FFA is limited especially for diabetic macular ischemia grading. Fundus fluorescein angiography is more sensitive in identifying microaneurysms. PMID- 29346245 TI - Diagnostic Yield and Safety of Bronchoscopist-directed Moderate Sedation With a Bolus Dose Administration of Propofol During Endobronchial Ultrasound Bronchoscopy. AB - BACKGROUND: The propofol use for moderate sedation (MS) during endobronchial ultrasound (EBUS) bronchoscopy is primarily restricted for use by an anesthesiologist because of safety concerns. The goals of this study were to demonstrate the safety and the diagnostic yield of the use of propofol by bronchoscopists and trained endoscopy nurses during EBUS bronchoscopy without intubation. METHODS: We tested a bolus propofol administration protocol targeting MS for EBUS bronchoscopy. A fixed initial dose of 40 mg of propofol along with a fixed 50 mcg fentanyl dose were administered. Sedation assessment was performed every 2 minutes, and repeated bolus doses of propofol were given to maintain MS under the direction of the bronchoscopist. RESULTS: A total of 122 subjects underwent EBUS bronchoscopy with a goal of MS from August 2015 to April 2017. In total, 110 subjects who underwent convex EBUS bronchoscopy under MS with propofol were included in the analysis. Median procedure duration was 57 minutes (range, 15 to 97 min). Deep sedation and agitation-related delay were occurred in 14 and 21 subjects, respectively. Hemodynamic instability and hypoxemia occurred in 23 subjects. However, there was no need for vasopressors or artificial airway placement. Median of total propofol dose per case was 560 mg. Diagnostic yield for malignancy and granuloma was 68%, and a median of 4 lymph node stations were sampled per subject. All specimens with adenocarcinoma were sufficient for genetic marker analysis. There were no major sedation-related complications. CONCLUSION: A bolus administration of propofol during EBUS bronchoscopy provided excellent adequacy of sedation and well tolerance safety profile. PMID- 29346246 TI - Comparison of Diagnostic Potential of Narrow Band Imaging Bronchoscopy Over White Light Bronchoscopy in Lung Cancer. AB - BACKGROUND: Worldwide, lung cancer is the largest contributor to new cancer diagnoses and to death from cancer. Narrow band imaging (NBI) is a novel bronchoscopic technique which enables detailed examination of submucosal microcapillary grid and showed great potential in early detection of malignant lesions of the bronchial mucosa. The aim of this study was to compare diagnostic potential of NBI bronchoscopy over white light (WL) bronchoscopy in lung cancer. METHODS: We enrolled 187 patients having clinical and radiologic findings highly suspicious of lung cancer. Patients were further divided into 2 groups: NBI group (n=102), and control WL group (n=85). Bronchoscopy examination was performed with respective visualization modes and all pathologic lesions were biopsied and histologically confirmed. RESULTS: On NBI bronchoscopy, malignancy was suspected in 69 patients, of whom 62 had malignancy, and 33 patients were suspected of inflammation, of whom 32 had inflammation and only 1 patient had malignancy. Under WL bronchoscopy, 54 patients were suspected of malignancy, of whom 36 had malignancy, and 31 patients were suspected of inflammation, of whom 23 had inflammatory disease and 8 had malignancy. NBI bronchoscopy had sensitivity 98.1%, specificity 82.05%, positive predictive value 89.86% and negative predictive value 96.97% in comparison to standard WL bronchoscopy which had sensitivity 81.82%, specificity 56.10%, positive predictive value 66.67% and negative predictive value 74.19%. CONCLUSION: NBI bronchoscopy demonstrated better results in comparison to WL bronchoscopy. The presence of pathologic vascularization of the tumor helps to better identify the malignant process. Inflammatory changes in the mucosa can be easily differentiated from malignant changes by the appearance of vessels. PMID- 29346247 TI - Concurrent Versus Sequential Intrapleural Instillation of Tissue Plasminogen Activator and Deoxyribonuclease for Pleural Infection. AB - BACKGROUND: Treatment of pleural infection with instillation of sequential intrapleural tissue plasminogen activator (tPA) and human recombinant deoxyribonuclease (DNase) twice daily for a total of 6 doses has been shown to decrease surgical referral and improve radiographic imaging. This labor-intensive regimen was empirically chosen. Thus, it remains unclear whether the 2 drugs can be administered immediately one after the other (concurrent administration) instead of instilling them separately with a 1-hour to 2-hour interval in between (sequential administration). The aim of this study was to compare the efficacy and safety of sequential versus concurrent tPA/DNase therapy in patients with pleural infection. METHODS: This was a prospective observational study. Consecutive patients with pleural infection who received concurrent and sequential tPA/DNase were included. The initiation and number of doses of tPA/DNase therapy were based on the amount of pleural fluid drainage, clinical response and radiographic findings. RESULTS: A total of 38 patients with pleural infection received tPA/DNase treatment: 18 in the sequential group and 20 in the concurrent group. Treatment was successful in 77.7% in the sequential group and 75% in concurrent group (P=0.57). There was no statistically significant difference between the 2 treatment groups (sequential and concurrent) in median pleural fluid drainage (P=0.45), median volume of pleural effusion estimated on chest computed tomography scan (P=0.4) or median hemithorax occupied by effusion on chest radiography (P=0.83) following intrapleural therapy. One patient required a blood transfusion for gradual pleural blood loss in each treatment group. Pain needing escalation of analgesia affected 3 patients in each arm but none required cessation of therapy. CONCLUSION: A simpler regimen of concurrent administration of intrapleural tPA/DNase as compared with sequential intrapleural therapy is safe, effective, and represents a viable option for the management of pleural infection. PMID- 29346248 TI - The Utility of Ultrasound to Diagnose Tunnel-Tract Infection Related to Indwelling Pleural Catheters. AB - Indwelling pleural catheter (IPC) infections lead to increased morbidity and treatment failure in patients with chronic recurrent pleural effusions. Ultrasonography is a readily available diagnostic tool used by pulmonologists on a daily basis. Ultrasonography has been used to identify the etiology of indwelling peritoneal catheter obstruction, including infection of the exit site and tunnel tract. The use of ultrasonography to identify tunnel-tract infection involving IPC has not been reported. We describe the ultrasonographic characteristics of 3 cases of confirmed tunnel-tract infection and compared them with noninfected chronic IPCs. Ultrasonographic evaluation of the soft tissue tunnel tract can accurately identify fluid collections around the catheter and cuff, which is highly suggestive of tunnel-tract infection. PMID- 29346249 TI - 1% Versus 2% Lignocaine for Airway Anesthesia in Flexible Bronchoscopy Without Lignocaine Nebulization (LIFE): A Randomized Controlled Trial. AB - BACKGROUND: The ideal concentration of lignocaine for topical anesthesia in bronchoscopy remains investigational. In this randomized, double blind study, we compared 1% versus 2% lignocaine for topical anesthesia. METHODS: Consecutive patients undergoing bronchoscopy were randomized to receive either 1% or 2% lignocaine solution by spray-as-you-go technique. All received 10% lignocaine spray to the oropharynx along with nasal 2% lignocaine gel. Nebulized lignocaine was not administered. Primary outcomes were operator-rated overall procedural satisfaction, visual analogue scale (VAS)-rated and operator-rated cough, VAS. Secondary objectives were total lignocaine dose administered, patient-rated pain on faces pain scale, cumulative dose of lignocaine and procedural complications. RESULTS: A total of 500 patients (250 in each group) were randomized. Baseline characteristics were comparable. Operator-rated overall procedural satisfaction, VAS (72.05+/-20.16 and 72.20+/-21.96 in 1% and 2% group respectively; P=0.93) and operator-rated cough, VAS [1% group: 19.1 (12.6-34.6) and 2% group: 20.6 (12.5 36.9); P>0.05] were similar between the 2 groups. Cumulative dose of lignocaine used in 2% lignocaine group was greater (220.89+/-12.96 mg in 1% and 319.55+/ 19.32 mg in 2% group; P<0.001). Patients receiving sedation were comparable between the 2 groups. (10% in 1% lignocaine group and 6% in 2% lignocaine group; P=0.13). Minor complications occurred in 2 patients in each group. CONCLUSION: One percent lignocaine in flexible bronchoscopy is as efficacious as 2% lignocaine when administered using the spray as you go technique without concurrent lignocaine nebulization, at a significantly lower total dose of lignocaine administered. PMID- 29346250 TI - Incidence, Etiology, and Clinicopathologic Features of Endobronchial Benign Lesions: A 10-Year Consecutive Retrospective Study. AB - BACKGROUND: Airways can be affected by non-neoplastic lesions leading to critical stenosis of the lumen. Incidence, etiology, and clinical significance of endobronchial benign lesions are not systematically characterized.This study aimed to assess the epidemiology of nonmalignant processes involving the bronchial tree on clinical, pathologic, endoscopic, and radiologic grounds. METHODS: We retrospectively analyzed bronchoscopy procedures over 10 years at the Bronchoscopy Unit of Modena University Hospital. All the endoscopically growing benign lesions with histologic confirmation were considered. For each lesion, we evaluated demographics, clinical features and outcome, the endoscopic aspect and radiologic characteristics by means of computed tomography as assessed by 2 experienced radiologists blinded with regard to the diagnosis. RESULTS: Over the study period, we analyzed 10,431 bronchoscopies and identified 2075 cases of tracheobronchial alterations. Among these, 11.2% had a benign etiology with an average annual incidence of 23 new cases/year and a general incidence of 2.2%. Anthrachosis was the most prevalent bronchial lesion. In total, 22% of benign lesions presented airway stenosis >50% and required bronchoscopic treatment. Bronchial stenosis was most frequently observed in tuberculosis (P=0.031) and aspergillosis (P=0.020) when compared with sarcoidosis. Immunosuppressive status was significantly associated with endobronchial aspergillosis (P=0.0001) and the 1-year survival from diagnosis resulted significantly lower irrespectively to the immune system condition. CONCLUSIONS: A consistent proportion of endobronchial benign lesions are reported. One fifth of these are associated with critical stenosis of the airway lumen, requiring rigid bronchoscopy. Among these, aspergillosis is characterized by the poorest prognosis, regardless of host immunity status. PMID- 29346251 TI - Combined Endosonography Reduces Time to Diagnose Pulmonary Coccidioidomycosis. AB - Coccidioidomycosis causes significant morbidity in endemic areas. In the absence of sensitive diagnostic serologic testing, clinicians have increasingly relied on lung and lymph node biopsies for diagnosis. Recently, endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA) has been shown to be an excellent sampling method for the diagnosis and staging of lung cancers, especially when combined with endoscopic ultrasound guided fine needle aspiration (EUS-FNA). We present 13 consecutive cases where EBUS-TBNA and/or EUS-FNA of pulmonary lymph nodes were performed as part of the workup for pulmonary coccidioidomycosis. EBUS-TBNA+EUS-FNA led to diagnosis in all nine cases in which they were performed concurrently, and in the remaining 4 in which either was performed individually. BAL was performed in all cases with positive results in 5 (38%). The mean time to diagnose by EBUS/EUS (1.6 d) was significantly shorter than by bronchoalveolar lavage (6.3 d) (P=0.003). The findings indicate that combined EBUS-TBNA+EUS-FNA for lymph node biopsy facilitates early and accurate diagnosis of pulmonary coccidioidomycosis. PMID- 29346252 TI - Sarcoidosis With Pleural Effusion as the Presenting Symptom. AB - A 65-year-old woman, never smoker, with medical history of hypertension, nonischemic cardiomyopathy, and moderate pulmonary hypertension presented with symptomatic bilateral pleural effusions. Thoracentesis revealed a lymphocyte predominant transudate and was negative for malignancy, microbiologic cultures were negative for an infectious cause. Chest tomography showed mediastinal and bilateral hilar lymphadenopathy, lymph node biopsy with endobronchial ultrasound guided transbronchial needle aspiration showed non-necrotizing granulomas compatible with sarcoidosis. Echocardiogram showed ejection fraction of 45% and cardiac workup for sarcoid involvement was negative. Despite overall clinical management with diuretics, pleural effusion persisted and the patient underwent medical thoracoscopy with pleural biopsy. Biopsy showed noncaseating granulomas consistent with sarcoid, with all stains and microbiologic cultures negative for an infectious etiology. To the best of our knowledge, this is the first described case of sarcoidosis presenting as large transudative pleural effusion. PMID- 29346253 TI - An Innovative Solution for Prolonged Air Leaks: The Customized Endobronchial Silicone Blocker. AB - BACKGROUND: Prolonged air leak (PAL) is a life-threatening condition that can present either as bronchopleural fistula, or alveolar-pleural fistula (APF). Although numerous bronchoscopic treatments are described, they are either expensive, not widely available in the developing world or have limited success. We describe our experience with a novel customized endobronchial silicone blocker (CESB) for PAL treatment. METHODS: This is a retrospective study of PAL patients who underwent CESB placement. The air leak was localized using a balloon occlusion test. The CESB was uniquely designed by molding silicone stent pieces into a conical shape, deployed with rigid bronchoscopy into the appropriate segment, and reinforced with cyanoacrylate glue to prevent migration. In patients with APF, pleurodesis was performed after leak resolution to prevent recurrence. Following this, the CESB was removed after 6 weeks. RESULTS: Forty-nine CESBs were placed in 31 patients (25 male individuals, 6 female individuals) with mean age of 49.7+/-19.7 years. The PALs included APF (n=16), bronchopleural fistula (n=14), and airway-mediastinal fistula (n=1). The average diameter of the CESB used was 7.9+/-2.9 mm. There was resolution of the PAL in 26 of 31 patients (84%). The CESB migrated in 5 patients with no adverse events. Pleurodesis was performed in 13 of 16 patients with APF, to prevent recurrence. No other significant complications were observed. CONCLUSIONS: CESBs represent a safe, effective, and innovative approach in the management of PAL. They should be considered in patients who are not surgical candidates, fail surgery, or those who have a recurrence following surgery. PMID- 29346254 TI - Long-term Outcomes of Pediatric En Bloc Compared to Living Donor Kidney Transplantation: A Single-Center Experience With 25 Years Follow-Up. AB - BACKGROUND: Pediatric en bloc kidneys are considered marginal for transplantation into adults. We aimed to compare the long-term outcomes of pediatric en bloc versus living donor kidney transplantation. METHODS: A retrospective review was undertaken on pediatric en bloc and living donor kidney transplants performed at our center between 1990 and 2001. The outcomes compared between the groups included 25 year graft survival and longitudinal glomerular filtration rate. RESULTS: There were 72 pediatric en bloc and 75 living donor kidney recipients included in the analysis. Pediatric donors were 16.9 +/- 11.2 months old and weighed 10.7 +/- 3.8 kg with terminal serum creatinine of 0.50 +/- 0.45 mg/dL. Living donors were 40.1 +/- 9.4 years old and serum creatinine was 0.90 +/- 0.16 mg/dL at the time of donation. En bloc kidney recipients had higher dialysis vintage (23.0 +/- 29.2 months vs 14.3 +/- 14.7 months; P = 0.03), and longer cold ischemia time (30.5 +/- 9.8 hours vs 2.6 +/- 0.9 hours, P < 0.001). Kaplan-Meier estimate revealed similar graft survival between the groups up to 27 years of follow up (log rank P = 0.78). Estimated glomerular filtration rate was significantly higher in pediatric en bloc kidney recipients from years 5 through 17 posttransplantation. CONCLUSIONS: Pediatric en bloc kidneys conferred long term graft survival similar to living donor kidneys over a 25-year period after transplantation along with superior graft function. These findings support improved utilization of pediatric kidneys for transplantation into adults which not only helps to alleviate organ shortage but also provide excellent long-term function. PMID- 29346255 TI - Safety of BCG Vaccination in Pediatric Liver Transplant Recipients. PMID- 29346256 TI - Causes, Preventability, and Cost of Unplanned Rehospitalizations Within 30 Days of Discharge After Lung Transplantation. AB - BACKGROUND: Unplanned rehospitalizations (UR) within 30 days of discharge are common after lung transplantation. It is unknown whether UR represents preventable gaps in care or necessary interventions for complex patients. The objective of this study was to assess the incidence, causes, risk factors, and preventability of UR after initial discharge after lung transplantation. METHODS: This was a single-center prospective cohort study. Subjects completed a modified short physical performance battery to assess frailty at listing and at initial hospital discharge after transplantation and the State-Trait Anxiety Inventory at discharge. For each UR, a study staff member and the patient's admitting or attending clinician used an ordinal scale (0, not; 1, possibly; 2, definitely preventable) to rate readmission preventability. A total sum score of 2 or higher defined a preventable UR. RESULTS: Of the 90 enrolled patients, 30 (33.3%) had an UR. The single most common reasons were infection (7 [23.3%]) and atrial tachyarrhythmia (5 [16.7%]). Among the 30 URs, 9 (30.0%) were deemed preventable. Unplanned rehospitalization that happened before day 30 were more likely to be considered preventable than those between days 30 and 90 (30.0% versus 6.2%, P = 0.04). Discharge frailty, defined as short physical performance battery less than 6, was the only variable associated with UR on multivariable analysis (odds ratio, 3.4; 95% confidence interval, 1.1-11.8; P = 0.04). CONCLUSIONS: Although clinicians do not rate the majority of UR after lung transplant as preventable, discharge frailty is associated with UR. Further research should identify whether modification of discharge frailty can reduce UR. PMID- 29346258 TI - Quantifying Frailty in Post-Lung Transplant Patients-Can We Predict Who Will Need Readmission? PMID- 29346257 TI - Association of Cold Ischemia Time With Acute Renal Transplant Rejection. AB - BACKGROUND: Kidney transplantation holds much promise as a treatment of choice for patients with end-stage kidney disease. The impact of cold ischemia time (CIT) on acute renal transplant rejection (ARTR) remains to be fully studied in a large cohort of renal transplant patients. METHODS: From the Organ Procurement and Transplantation Network database, we analyzed 63 798 deceased donor renal transplants performed between 2000 and 2010. We assessed the association between CIT and ARTR. We also evaluated the association between recipient age and ARTR. RESULTS: Six thousand eight hundred two (11%) patients were clinically diagnosed with ARTR. Longer CIT was associated with an increased risk of ARTR. After multivariable adjustment, compared with recipients with CIT < 12 hours, the relative risk of ARTR was 1.13 (95% confidence interval, 1.04-1.23) in recipients with CIT >= 24 hours. The association of CIT and ARTR was more pronounced in patients undergoing retransplantation: compared with recipients with CIT less than 12 hours, the relative risk of ARTR was 1.66 (95% confidence interval, 1.01 2.73) in recipients with CIT of 24 hours or longer. Additionally, older age was associated with a decreased risk of ARTR. Compared with recipients aged 18 to 29 years, the relative risk of ARTR was 0.50 (95% confidence interval, 0.45-0.57) in recipients 60 years or older. Longer CIT was also associated with increased risk of death-censored graft loss. Compared with recipients with CIT less than 12 hours, the hazard ratio of death-censored graft loss was 1.22 (95% confidence interval, 1.14-1.30) in recipients with CIT of 24 hours or longer. CONCLUSIONS: Prolonged CIT is associated with an increased risk of ARTR and death-censored graft loss. Older age was associated with a lower risk of ARTR. PMID- 29346259 TI - Do Patients Supported With Continuous-flow Left Ventricular Assist Device Have a Sufficient Risk of Death to Justify a Priority Allocation? A Propensity Score Matched Analysis of Patients Listed in UNOS Status 2. AB - BACKGROUND: Outcomes of continuous flow left ventricular assist devices (CF LVADs) as bridge to transplant have significantly improved. The question has arisen whether patients on CF-LVADs have an increased risk of death on the waiting list as to justify a priority allocation (status 1). The aim of this study was to compare the survival after implantation of CF-LVADs with the survival on the waiting list for patients initially listed in United Network for Organ Sharing (UNOS) status 2. METHODS: All patients 18 years or older listed for heart transplantation (HT) in the United States between 2011 and 2013 in UNOS status 2 with no mechanical circulatory support at time of listing were analyzed. Patients were divided into 2 groups, depending on whether they received a new CF LVAD while listed (CF-LVAD group) or not (NO-LVAD) and were further matched on their propensity score (PS) in a 1:2 ratio. RESULTS: Two hundred eighty-seven CF LVAD patients were matched to 574 NO-LVAD patients. Survival after CF-LVAD was significantly lower at 24 months compared with waiting list (75.4 +/- 4.4% vs 91.2 +/- 8.9%, P < 0.0001). Further, survival was not significantly different between the 2 groups at 24 months after transplantation (81.3 +/- 5.9% vs 86.7 +/ 3.3%, P = 0.3). CONCLUSIONS: Survival of patients listed in UNOS status 2 who receive a CF-LVAD while listed is significantly lower compared to patients who do not receive mechanical support on the waiting list. The current priority in the allocation system given to patients on CF-LVAD seems justified. Further posttransplant survival is not negatively influenced by previous CF-LVAD implantation. PMID- 29346260 TI - Race, Risk, and Willingness of End-Stage Renal Disease Patients Without Hepatitis C Virus to Accept an HCV-Infected Kidney Transplant. AB - BACKGROUND: Despite effective antiviral treatment, hundreds of kidneys from deceased donors with hepatitis C virus (HCV) are discarded annually. Little is known about the determinants of willingness to accept HCV-infected kidneys among HCV-negative patients. METHODS: At 2 centers, 189 patients undergoing initial or reevaluation for transplant made 12 hypothetical decisions about accepting HCV infected kidneys in which we systematically varied expected HCV cure rate, allograft quality, and wait time for an uninfected kidney. RESULTS: Only 29% of the participants would accept an HCV-infected kidney under all scenarios, whereas 53% accepted some offers and rejected others, and 18% rejected all HCV-infected kidneys. Higher cure rate (odds ratio [OR], 3.49; 95% confidence interval [CI], 2.33-5.24 for 95% vs 75% probability of HCV cure), younger donor (OR, 2.34; 95% CI, 1.91-2.88 for a 20-year-old vs a 60-year-old hypertensive donor), and longer wait for an uninfected kidney (OR, 1.43; 95% CI, 1.22-1.67 for 5 years vs 2 years) were associated with greater willingness to accept an HCV-infected kidney. Black race modified the effect of HCV cure rate, such that willingness to accept a kidney increased less for blacks versus whites as the cure rate improved. Patients older than 60 years and prior kidney recipients showed greater willingness to accept an HCV-infected organ. CONCLUSIONS: Most patients will consider an HCV-infected kidney in some situations. Future trials using HCV infected kidneys may enhance enrollment by targeting older patients and prior transplant recipients, but centers should anticipate that black patients' acceptance of HCV-infected kidneys will be reduced compared with white patients. PMID- 29346261 TI - The Authors' Reply. PMID- 29346262 TI - Important Facts About Organ Donation and OPO Performance. PMID- 29346263 TI - Clinical Application of Real-Time Shear Wave Elastography in Identifying the Histological Components of Parotid Adenolymphoma. AB - OBJECTIVE: This study aimed to investigate the relationship between the elastic modulus and the histological components of parotid adenolymphoma by using real time shear wave elastography. METHODS: A total of 157 patients, histologically confirmed as having parotid adenolymphoma, were enrolled in the study. The maximum and the mean elastic modulus of the parotid mass were measured by using preoperative shear wave elastography. Parotid adenolymphoma was histopathologically subdivided into different types based on the relative proportion of stromal to cellular components. RESULTS: The maximal elasticity of parotid adenolymphoma ranged from 20.67 to 160.90 kPa, and the mean elasticity was 83.18 +/- 39.15 kPa. The maximal elasticity of the 3 types of parotid adenolymphoma was 34.21 to 155.20, 20.67 to 104.20, and 45.89 to 160.90 kPa, respectively. The mean elasticity of the 3 types of parotid adenolymphoma was 89.16 +/- 40.62, 63.24 +/- 28.07, and 111.10 +/- 37.85 kPa, respectively. The difference in the maximal elasticity among 3 groups was significant (P < 0.01). There was no significant difference in maximal elasticity of type II and type III as compared with type I adenolymphoma (P > 0.05). The maximal elasticity of type III adenolymphoma was significantly higher than that of type II (P < 0.05, t = 3.12). CONCLUSION: Shear wave elastography depicts parotid adenolymphoma with a variable appearance because of the relative proportions of stromal to cellular contents in the mass. PMID- 29346264 TI - Sonography of the Cecum: Gateway to the Right Lower Quadrant. AB - Sonography of the cecum has come of age largely as a consequence of the successful evolution of appendiceal sonography as a useful tool in the evaluation of patients with right lower-quadrant pain. At some medical centers, graded compression sonography (GCS) has become the initial imaging study of choice in the assessment of these individuals. The cecum serves as a helpful anatomic landmark for localization of the appendix in these examinations-providing a sonographic starting point in the search for the appendix. During GCS, primary pathology within the cecum itself can become evident, including a variety of processes, such as infectious, inflammatory, or neoplastic disorders, whose presentations commonly mimic that of appendicitis. The accurate diagnosis of cecal abnormalities and their differentiation from acute appendicitis play valuable roles in the management of affected patients because the options for further workup and subsequent treatment vary greatly according to the diagnosis at hand. Additionally, the compressed cecum often becomes an acoustic window into the right lower quadrant, revealing pathology apart from the appendix within the right iliac fossa. The purpose of this pictorial essay is to highlight the importance and value of performing a careful evaluation of the cecum during GCS of patients with suspected appendicitis and to review the differential diagnosis and imaging findings of primary cecal abnormalities whose clinical presentations can mimic that of acute appendicitis. PMID- 29346267 TI - Erratum: Lavergne, S.N. In Vitro Research Tools in the Field of Human Immediate Drug Hypersensitivity and Their Present Use in Small Animal Veterinary Medicine Vet. Sci. 2017, 4, 1. AB - Due to an error during production, the author, Lavergne S. Lavergne's name in the published paper [1] was incorrect.[...]. PMID- 29346266 TI - The Relationship between Autism Spectrum Disorder and Melatonin during Fetal Development. AB - The aim of this review is to clarify the interrelationship between melatonin and autism spectrum disorder (ASD) during fetal development. ASD refers to a diverse range of neurodevelopmental disorders characterized by social deficits, impaired communication, and stereotyped or repetitive behaviors. Melatonin, which is secreted by the pineal gland, has well-established neuroprotective and circadian entraining effects. During pregnancy, the hormone crosses the placenta into the fetal circulation and transmits photoperiodic information to the fetus allowing the establishment of normal sleep patterns and circadian rhythms that are essential for normal neurodevelopment. Melatonin synthesis is frequently impaired in patients with ASD. The hormone reduces oxidative stress, which is harmful to the central nervous system. Therefore, the neuroprotective and circadian entraining roles of melatonin may reduce the risk of neurodevelopmental disorders such as ASD. PMID- 29346265 TI - Halfway between 2D and Animal Models: Are 3D Cultures the Ideal Tool to Study Cancer-Microenvironment Interactions? AB - An area that has come to be of tremendous interest in tumor research in the last decade is the role of the microenvironment in the biology of neoplastic diseases. The tumor microenvironment (TME) comprises various cells that are collectively important for normal tissue homeostasis as well as tumor progression or regression. Seminal studies have demonstrated the role of the dialogue between cancer cells (at many sites) and the cellular component of the microenvironment in tumor progression, metastasis, and resistance to treatment. Using an appropriate system of microenvironment and tumor culture is the first step towards a better understanding of the complex interaction between cancer cells and their surroundings. Three-dimensional (3D) models have been widely described recently. However, while it is claimed that they can bridge the gap between in vitro and in vivo, it is sometimes hard to decipher their advantage or limitation compared to classical two-dimensional (2D) cultures, especially given the broad number of techniques used. We present here a comprehensive review of the different 3D methods developed recently, and, secondly, we discuss the pros and cons of 3D culture compared to 2D when studying interactions between cancer cells and their microenvironment. PMID- 29346268 TI - Effect of Novel Quercetin Titanium Dioxide-Decorated Multi-Walled Carbon Nanotubes Nanocomposite on Bacillus subtilis Biofilm Development. AB - The present work was targeted to design a surface against cell seeding and adhering of bacteria, Bacillus subtilis. A multi-walled carbon nanotube/titanium dioxide nano-power was produced via simple mixing of carbon nanotube and titanium dioxide nanoparticles during the sol-gel process followed by heat treatment. Successfully, quercetin was immobilized on the nanocomposite via physical adsorption to form a quercetin/multi-walled carbon nanotube/titanium dioxide nanocomposite. The adhesion of bacteria on the coated-slides was verified after 24 h using confocal laser-scanning microscopy. Results indicated that the quercetin/multi-walled carbon nanotube/titanium dioxide nanocomposite had more negativity and higher recovery by glass surfaces than its counterpart. Moreover, coating surfaces with the quercetin-modified nanocomposite lowered both hydrophilicity and surface-attached bacteria compared to surfaces coated with the multi-walled carbon nanotubes/titanium dioxide nanocomposite. PMID- 29346270 TI - Resistance to HIV Integrase Inhibitors: About R263K and E157Q Mutations. AB - The use of integrase inhibitors (INI) is increasing in antiretroviral therapies (ART) and INI are not all equal regarding genetic barrier to resistance. The aim of this manuscript was to review main in vivo and in vitro knowledge about two particular integrase resistance-associated mutations: R263K and E157Q. The R263K mutation was the first mutation rarely found selected at time of virological failure in patients failing a first-line dolutegravir-based treatment. Further in vitro studies on R263K mutants showed a moderate increase in phenotypic resistance level and a drastic reduction in viral replicative capacity. No compensatory mutations were evidenced. The E157Q mutation is polymorphic, found between 1.7% and 5.6% of viral sequences issued from ART-naive patients depending on the viral subtype; as well as acquired resistance emerging at failure of a raltegravir-based regimen in two case reports. We reported data on phenotypic resistance level of E157Q mutants and virological response of patients harboring a E157Q virus initiating an INI-based regimen, showing that dolutegravir might be the most recommended INI in such patients. These findings show that there is still a need for a better understanding of resistance mechanisms to INI and emphasized the importance of genotypic background in viral evolution under drug pressure. PMID- 29346271 TI - "Bacterial Toxins" Section in the Journal Toxins: A Fantastic Multidisciplinary Interplay between Bacterial Pathogenicity Mechanisms, Physiological Processes, Genomic Evolution, and Subsequent Development of Identification Methods, Efficient Treatment, and Prevention of Toxigenic Bacteria. AB - Toxins are powerful pathogenicity factors produced by certain bacteria, fungi, animals, and plants which mediate drastic interactions of these pathogens on the organism host[...]. PMID- 29346269 TI - Identification of Secreted Proteins Involved in Nonspecific dsRNA-Mediated Lutzomyia longipalpis LL5 Cell Antiviral Response. AB - Hematophagous insects transmit infectious diseases. Sand flies are vectors of leishmaniasis, but can also transmit viruses. We have been studying immune responses of Lutzomyia longipalpis, the main vector of visceral leishmaniasis in the Americas. We identified a non-specific antiviral response in L. longipalpis LL5 embryonic cells when treated with non-specific double-stranded RNAs (dsRNAs). This response is reminiscent of interferon response in mammals. We are investigating putative effectors for this antiviral response. Secreted molecules have been implicated in immune responses, including interferon-related responses. We conducted a mass spectrometry analysis of conditioned medium from LL5 cells 24 and 48 h after dsRNA or mock treatment. We identified 304 proteins. At 24 h, 19 proteins had an abundance equal or greater than 2-fold change, while the levels of 17 proteins were reduced when compared to control cells. At the 48 h time point, these numbers were 33 and 71, respectively. The two most abundant secreted peptides at 24 h in the dsRNA-transfected group were phospholipid scramblase, an interferon-inducible protein that mediates antiviral activity, and forskolin binding protein (FKBP), a member of the immunophilin family, which mediates the effect of immunosuppressive drugs. The transcription profile of most candidates did not follow the pattern of secreted protein abundance. PMID- 29346272 TI - Viral and Antibody Kinetics, and Mosquito Infectivity of an Imported Case of Zika Fever Due to Asian Genotype (American Strain) in Singapore. AB - We report a case of a Singaporean who acquired Zika virus (ZIKV) during a visit to Cuba. The infection was confirmed using molecular and serological methods. This report highlights potential drawbacks of using IgG serology for diagnosis of flavivirus infections in endemic regions. The low viremia detected during the early phase of this case resulted in low mosquito infectivity rates, suggesting the possibility of ZIKV transmission prior to clinical onset. The report also emphasizes the challenges of public health interventions for Zika fever and the importance of sustaining a low vector population to reduce the risk of arbovirus transmission in vulnerable regions. PMID- 29346273 TI - Report on the Symposium "Molecular Mechanisms Involved in Neurodegeneration". AB - The prevalence of neurodegenerative diseases is currently a major concern in public health because of the lack of neuroprotective and neuroregenerative drugs. The symposium on Molecular Mechanisms Involved in Neurodegeneration held in Varadero, Cuba, updated the participants on the basic mechanisms of neurodegeneration, on the different approaches for drug discovery, and on early research results on therapeutic approaches for the treatment of neurodegenerative diseases. Alzheimer's disease and in silico research were covered by many of the presentations in the symposium, under the umbrella of the "State of the Art of Non-clinical Models for Neurodegenerative Diseases" International Congress, held from 20 to 24 June 2017. This paper summarizes the highlights of the symposium. PMID- 29346274 TI - IRF4 Mediates the Oncogenic Effects of STAT3 in Anaplastic Large Cell Lymphomas. AB - Systemic anaplastic large cell lymphomas (ALCL) are a category of T-cell non Hodgkin's lymphomas which can be divided into anaplastic lymphoma kinase (ALK) positive and ALK negative subgroups, based on ALK gene rearrangements. Among several pathways aberrantly activated in ALCL, the constitutive activation of signal transducer and activator of transcription 3 (STAT3) is shared by all ALK positive ALCL and has been detected in a subgroup of ALK negative ALCL. To discover essential mediators of STAT3 oncogenic activity that may represent feasible targets for ALCL therapies, we combined gene expression profiling analysis and RNA interference functional approaches. A shRNA screening of STAT3 modulated genes identified interferon regulatory factor 4 (IRF4) as a key driver of ALCL cell survival. Accordingly, ectopic IRF4 expression partially rescued STAT3 knock-down effects. Treatment with immunomodulatory drugs (IMiDs) induced IRF4 down regulation and resulted in cell death, a phenotype rescued by IRF4 overexpression. However, the majority of ALCL cell lines were poorly responsive to IMiDs treatment. Combination with JQ1, a bromodomain and extra-terminal (BET) family antagonist known to inhibit MYC and IRF4, increased sensitivity to IMiDs. Overall, these results show that IRF4 is involved in STAT3-oncogenic signaling and its inhibition provides alternative avenues for the design of novel/combination therapies of ALCL. PMID- 29346276 TI - Comparison of the Response of Male BALB/c and C57BL/6 Mice in Behavioral Tasks to Evaluate Cognitive Function. AB - To evaluate several cognitive parameters during the execution of behavioral tasks assessing cognitive function in laboratory animals, the parameters are reported within a range. This situation entails that each laboratory must establish the conditions under which the behavioral task to evaluate the cognitive function can be carried out. C57BL/6 and BALB/c inbred strains are used more often in behavioral studies relating to anxiety, stress, fear and cognitive function. The aim of this work was to compare the behavioral response of mice of the strains BALB/c and C57BL/6 to evaluate memory and learning as cognitive functions. Young male mice, 7-8 weeks of age, from each strain were used. Y maze, object recognition and passive avoidance tasks were performed. Both strains of mice showed differences in the response to the passive avoidance and Y maze task. This study advances knowledge about the baseline behavior of laboratory mice strains and their response during the experimental procedures, which are due to the treatment, genetic influence, procedural differences, genetic background variance, or any combination of these elements. PMID- 29346275 TI - A Review on Recent Advances in Stabilizing Peptides/Proteins upon Fabrication in Hydrogels from Biodegradable Polymers. AB - Hydrogels evolved as an outstanding carrier material for local and controlled drug delivery that tend to overcome the shortcomings of old conventional dosage forms for small drugs (NSAIDS) and large peptides and proteins. The aqueous swellable and crosslinked polymeric network structure of hydrogels is composed of various natural, synthetic and semisynthetic biodegradable polymers. Hydrogels have remarkable properties of functionality, reversibility, sterilizability, and biocompatibility. All these dynamic properties of hydrogels have increased the interest in their use as a carrier for peptides and proteins to be released slowly in a sustained manner. Peptide and proteins are remarkable therapeutic agents in today's world that allow the treatment of severe, chronic and life threatening diseases, such as diabetes, rheumatoid arthritis, hepatitis. Despite few limitations, hydrogels provide fine tuning of proteins and peptides delivery with enormous impact in clinical medicine. Novels drug delivery systems composed of smart peptides and molecules have the ability to drive self-assembly and form hydrogels at physiological pH. These hydrogels are significantly important for biological and medical fields. The primary objective of this article is to review current issues concerned with the therapeutic peptides and proteins and impact of remarkable properties of hydrogels on these therapeutic agents. Different routes for pharmaceutical peptides and proteins and superiority over other drugs candidates are presented. Recent advances based on various approaches like self assembly of peptides and small molecules to form novel hydrogels are also discussed. The article will also review the literature concerning the classification of hydrogels on a different basis, polymers used, "release mechanisms" their physical and chemical characteristics and diverse applications. PMID- 29346278 TI - A Case Study in Citizen Science: The Effectiveness of a Trap-Neuter-Return Program in a Chicago Neighborhood. AB - The use of trap-neuter-return (TNR) as a method of managing free-roaming cat populations has increased in the United States in recent decades. Historically, TNR has been conducted most often at a grassroots level, which has led to inconsistent data collection and assessment practices. Consequently, a paucity of analyzable data exists. An initiative is underway to standardize TNR program data collection and assessment. However, it could be some time before scientifically sound protocols are implemented on a broad scale. In the interim, sets of data collected by nascent citizen scientists offer valid opportunities to evaluate grassroots TNR programs. The purpose of the present study was to examine the effectiveness of a TNR program conducted by a citizen scientist located in Chicago, Illinois, where a county law permitting TNR was enacted in 2007. Colony populations, when grouped by the number of years enrolled in the program, declined by a mean of 54% from entry and 82% from peak levels. Results from coexistent TNR programs in the Chicago area are consistent with these findings. PMID- 29346277 TI - Vaccinia Virus in Blood Samples of Humans, Domestic and Wild Mammals in Brazil. AB - Outbreaks of Vaccinia virus (VACV) affecting cattle and humans have been reported in Brazil in the last 15 years, but the origin of outbreaks remains unknown. Although VACV DNA have been already detected in mice (Mus musculus), opossums (Didelphis albiventris) and dogs during VACV zoonotic outbreaks, no transmission to cattle or humans from any of these were reported during Brazilian outbreaks. In this work, we assessed the PCR positivity to VACV in blood samples of cows and other domestic mammals, wild rodents and other wild mammals, and humans from areas with or without VACV infection reports. Our results show the detection of VACV DNA in blood samples of cows, horse and opossums, raising important questions about VACV spread. PMID- 29346279 TI - How Neighborhood Effects Vary: Childbearing and Fathering among Latino and African American Adolescents. AB - This study examines what neighborhood conditions experienced at age 15 and after are associated with teen childbearing and fathering among Latino and African American youth and whether these neighborhood effects vary by gender and/or ethnicity. Administrative and survey data from a natural experiment are used for a sample of 517 Latino and African American youth whose families were quasi randomly assigned to public housing operated by the Denver (CO) Housing Authority (DHA). Characteristics of the neighborhood initially assigned by DHA to wait list applicants are utilized as identifying instruments for the neighborhood contexts experienced during adolescence. Cox Proportional Hazards (PH) models reveal that neighborhoods having higher percentages of foreign-born residents but lower levels of social capital robustly predict reduced odds of teen parenting though the magnitude of these effects was contingent on gender and ethnicity. Specifically, the presence of foreign-born neighbors on the risk of teen parenting produced a stronger dampening effect for African American youth when compared to Latino youth. Additionally, the effects of social capital on teen parenting were stronger for males than females. PMID- 29346280 TI - A Multi-Band Body-Worn Distributed Radio-Frequency Exposure Meter: Design, On Body Calibration and Study of Body Morphology. AB - A multi-band Body-Worn Distributed exposure Meter (BWDM) calibrated for simultaneous measurement of the incident power density in 11 telecommunication frequency bands, is proposed. The BDWM consists of 22 textile antennas integrated in a garment and is calibrated on six human subjects in an anechoic chamber to assess its measurement uncertainty in terms of 68% confidence interval of the on body antenna aperture. It is shown that by using multiple antennas in each frequency band, the uncertainty of the BWDM is 22 dB improved with respect to single nodes on the front and back of the torso and variations are decreased to maximum 8.8 dB. Moreover, deploying single antennas for different body morphologies results in a variation up to 9.3 dB, which is reduced to 3.6 dB using multiple antennas for six subjects with various body mass index values. The designed BWDM, has an improved uncertainty of up to 9.6 dB in comparison to commercially available personal exposure meters calibrated on body. As an application, an average incident power density in the range of 26.7-90.8 MUW.m - 2 is measured in Ghent, Belgium. The measurements show that commercial personal exposure meters underestimate the actual exposure by a factor of up to 20.6. PMID- 29346281 TI - A Prototype Sensor for In Situ Sensing of Fine Particulate Matter and Volatile Organic Compounds. AB - Air pollution exposure causes seven million deaths per year, according to the World Health Organization. Possessing knowledge of air quality and sources of air pollution is crucial for managing air pollution and providing early warning so that a swift counteractive response can be carried out. An optical prototype sensor (AtmOptic) capable of scattering and absorbance measurements has been developed to target in situ sensing of fine particulate matter (PM2.5) and volatile organic compounds (VOCs). For particulate matter testing, a test chamber was constructed and the emission of PM2.5 from incense burning inside the chamber was measured using the AtmOptic. The weight of PM2.5 particles was collected and measured with a filter to determine their concentration and the sensor signal-to concentration correlation. The results of the AtmOptic were also compared and found to trend well with the Dylos DC 1100 Pro air quality monitor. The absorbance spectrum of VOCs emitted from various laboratory chemicals and household products as well as a two chemical mixtures were recorded. The quantification was demonstrated, using toluene as an example, by calibrating the AtmOptic with compressed gas standards containing VOCs at different concentrations. The results demonstrated the sensor capabilities in measuring PM2.5 and volatile organic compounds. PMID- 29346282 TI - Smartphone-Based Cooperative Indoor Localization with RFID Technology. AB - In GPS-denied indoor environments, localization and tracking of people can be achieved with a mobile device such as a smartphone by processing the received signal strength (RSS) of RF signals emitted from known location beacons (anchor nodes), combined with Pedestrian Dead Reckoning (PDR) estimates of the user motion. An enhacement of this localization technique is feasible if the users themselves carry additional RF emitters (mobile nodes), and the cooperative position estimates of a group of persons incorporate the RSS measurements exchanged between users. We propose a centralized cooperative particle filter (PF) formulation over the joint state of all users that permits to process RSS measurements from both anchor and mobile emitters, as well as PDR motion estimates and map information (if available) to increase the overall positioning accuracy, particularly in regions with low density of anchor nodes. Smartphones are used as a convenient mobile platform for sensor measurements acquisition, low level processing, and data transmission to a central unit, where cooperative localization processing takes place. The cooperative method is experimentally demonstrated with four users moving in an area of 1600 m 2 , with 7 anchor nodes comprised of active RFID (radio frequency identification) tags, and additional mobile tags carried by each user. Due to the limited coverage provided by the anchor beacons, RSS-based individual localization is inaccurate (6.1 m median error), but this improves to 4.9 m median error with the cooperative PF. Further gains are produced if the PDR information is added to the filter: median error of 3.1 m (individual) and 2.6 m (cooperative); and if map information is also considered, the results are 1.8 m (individual) and 1.6 m (cooperative). Thus, for each version of the particle filter, cooperative localization outperforms individual localization in terms of positioning accuracy. PMID- 29346283 TI - The Biological Role of Hyaluronan-Rich Oocyte-Cumulus Extracellular Matrix in Female Reproduction. AB - Fertilization of the mammalian oocyte requires interactions between spermatozoa and expanded cumulus extracellular matrix (ECM) that surrounds the oocyte. This review focuses on key molecules that play an important role in the formation of the cumulus ECM, generated by the oocyte-cumulus complex. In particular, the specific inhibitors (AG1478, lapatinib, indomethacin and MG132) and progesterone receptor antagonist (RU486) exerting their effects through the remodeling of the ECM of the cumulus cells surrounding the oocyte have been described. After gonadotropin stimulus, cumulus cells expand and form hyaluronan (HA)-rich cumulus ECM. In pigs, the proper structure of the cumulus ECM depends on the interaction between HA and serum-derived proteins of the inter-alpha-trypsin inhibitor (IalphaI) protein family. We have demonstrated the synthesis of HA by cumulus cells, and the presence of the IalphaI, tumor necrosis factor-alpha-induced protein 6 and pentraxin 3 in expanding oocyte-cumulus complexes (OCC). We have evaluated the covalent linkage of heavy chains of IalphaI proteins to HA, as the principal component of the expanded HA-rich cumulus ECM, in porcine OCC cultured in medium with specific inhibitors: AG1478 and lapatinib (both inhibitors of epidermal growth factor receptor tyrosine kinase activity); MG132 (a specific proteasomal inhibitor), indomethacin (cyclooxygenase inhibitor); and progesterone receptor antagonist (RU486). We have found that both RU486 and indomethacin does not disrupt the formation of the covalent linkage between the heavy chains of IalphaI to HA in the expanded OCC. In contrast, the inhibitors AG1478 and lapatinib prevent gonadotropin-induced cumulus expansion. Finally, the formation of oocyte-cumulus ECM relying on the covalent transfer of heavy chains of IalphaI molecules to HA has been inhibited in the presence of MG132. PMID- 29346284 TI - Double Heterozygosity for BRCA1 Pathogenic Variant and BRCA2 Polymorphic Stop Codon K3326X: A Case Report in a Southern Italian Family. AB - Here, we describe a patient with bilateral breast cancer and melanoma, and with a concomitant double variant, namely p.Gln563Ter in BRCA1 and p.Lys3326Ter in BRCA2. The BRCA2 p.Lys3326Ter (K3326X) (rs11571833) mutation identified in our patient is a debated substitution of thymidine for adenine which is currently regarded as benign polymorphism in main gene databases. Recent studies, however, describe this variant as associated with breast and ovarian tumors. Based on the observation of the cancer's earliest age of onset in this subject, our purpose was to reevaluate this variant according to recent papers indicating a role of powerful modifier of the genetic penetrance. Genetic testing was performed in all consenting patient's relatives, and in the collection of the clinical data particular attention was paid to the age of onset of the neoplasia. Following our observation that the our patient with double heterozygosis had an early age of onset for cancer similar to a few rare cases of double mutation for BRCA1 and BRCA2, we also performed an extensive review of the literature relative to patients carrying a double heterozygosity for both genes. In line with previous studies relative to the rare double heterozygosity in both BRCA1/2 genes, we found the earlier onset of breast cancer in our patient with both BRCA1/2 mutations with respect to other relatives carrying the single BRCA1 mutation. The presence of the second K3326X variant in our case induces a phenotype characterized by early onset of the neoplasia in a manner similar to the other cases of double heterozygosity previously described. Therefore, we suggest that during the genetic counseling, it should be recommendable to evaluate the presence of the K3326X variant in association with other pathogenic mutations. PMID- 29346285 TI - Characterization of Odors of Wood by Gas Chromatography-Olfactometry with Removal of Extractives as Attempt to Control Indoor Air Quality. AB - Indoor air quality problems are usually revealed by occupants' complaints. In this study, the odors of two types of hardwood species, namely, Cathy poplar (Populus cathayana Rehd.) and rubberwood (Hevea brasiliensis) were selected and extracted with ethanol-toluene for removal of extractives in an attempt to eliminate the odors. The odorous components of neat and extracted woods were identified by gas chromatography-mass spectrometry/olfactometry (GC-MS/O). The results showed that about 33 kinds of key volatile compounds (peak area above 0.2%) were detected from the GC-MS, and about 40 kinds of odorants were identified from GC-O. The components were concentrated between 15 and 33 min in GC-O, which was different from the concentration time in GC-MS. Lots of the odors identified from GC-O were unpleasant to humans, and variously described as stinky, burnt, leather, bug, herb, etc. These odors may originate from the thermos-oxidation of wood components. After extraction, the amounts and intensities of some odorants decreased, while some remained. However, the extraction process resulted in a benzene residue and led to increased benzene odor. PMID- 29346286 TI - A More Efficient Transportable and Scalable System for Real-Time Activities and Exercises Recognition. AB - Many people in the world are affected by muscle wasting, especially the population hits by myotonic dystrophy type 1 (DM1). Those people are usually given a program of multiple physical exercises to do. While DM1 and many other people have difficulties attending commercial centers to realize their program, a solution is to develop such a program completable at home. To this end, we developed a portable system that patients could bring home. This prototype is an improved version of the previous one using Wi-Fi, as this new prototype runs on BLE technology. This new prototype conceptualized induces great results. PMID- 29346287 TI - Development of Zika Virus Vaccines. AB - Zika virus (ZIKV) is a mosquito-borne flavivirus that emerged as a global threat following the most recent outbreak in Brazil in 2015. ZIKV infection of pregnant women is associated with fetal abnormalities such as microcephaly, and infection of adults can lead to Guillain-Barre syndrome, an autoimmune disease characterized by neurological deficits. Although there are currently licensed vaccines for other flaviviruses, there remains an urgent need for preventative vaccines against ZIKV infection. Herein we describe the current efforts to accelerate the development of ZIKV vaccines using various platforms, including live attenuated virus, inactivated virus, DNA and RNA, viral vectors, and in silico-predicted immunogenic viral epitopes. Many of these approaches have leveraged lessons learned from past experience with Dengue and other flavivirus vaccines. PMID- 29346288 TI - Application of Computational Intelligence to Improve Education in Smart Cities. AB - According to UNESCO, education is a fundamental human right and every nation's citizens should be granted universal access with equal quality to it. Because this goal is yet to be achieved in most countries, in particular in the developing and underdeveloped countries, it is extremely important to find more effective ways to improve education. This paper presents a model based on the application of computational intelligence (data mining and data science) that leads to the development of the student's knowledge profile and that can help educators in their decision making for best orienting their students. This model also tries to establish key performance indicators to monitor objectives' achievement within individual strategic planning assembled for each student. The model uses random forest for classification and prediction, graph description for data structure visualization and recommendation systems to present relevant information to stakeholders. The results presented were built based on the real dataset obtained from a Brazilian private k-9 (elementary school). The obtained results include correlations among key data, a model to predict student performance and recommendations that were generated for the stakeholders. PMID- 29346289 TI - Himawari-8 Satellite Based Dynamic Monitoring of Grassland Fire in China-Mongolia Border Regions. AB - In this study, we used bands 7, 4, and 3 of the Advance Himawari Imager (AHI) data, combined with a Threshold Algorithm and a visual interpretation method to monitor the entire process of grassland fires that occurred on the China-Mongolia border regions, between 05:40 (UTC) on April 19th to 13:50 (UTC) on April 21st 2016. The results of the AHI data monitoring are evaluated by the fire point product data, the wind field data, and the environmental information data of the area in which the fire took place. The monitoring result shows that, the grassland fire burned for two days and eight hours with a total burned area of about 2708.29 km2. It mainly spread from the northwest to the southeast, with a maximum burning speed of 20.9 m/s, a minimum speed of 2.52 m/s, and an average speed of about 12.07 m/s. Thus, using AHI data can not only quickly and accurately track the dynamic development of a grassland fire, but also estimate the spread speed and direction. The evaluation of fire monitoring results reveals that AHI data with high precision and timeliness can be highly consistent with the actual situation. PMID- 29346290 TI - Joint Probabilistic Data Association Filter with Unknown Detection Probability and Clutter Rate. AB - This paper proposes a novel joint probabilistic data association (JPDA) filter for joint target tracking and track maintenance under unknown detection probability and clutter rate. The proposed algorithm consists of two main parts: (1) the standard JPDA filter with a Poisson point process birth model for multi object state estimation; and (2) a multi-Bernoulli filter for detection probability and clutter rate estimation. The performance of the proposed JPDA filter is evaluated through empirical tests. The results of the empirical tests show that the proposed JPDA filter has comparable performance with ideal JPDA that is assumed to have perfect knowledge of detection probability and clutter rate. Therefore, the algorithm developed is practical and could be implemented in a wide range of applications. PMID- 29346291 TI - Filaments Production and Fused Deposition Modelling of ABS/Carbon Nanotubes Composites. AB - Composite acrylonitrile-butadiene-styrene (ABS)/carbon nanotubes (CNT) filaments at 1, 2, 4, 6 and 8 wt %, suitable for fused deposition modelling (FDM) were obtained by using a completely solvent-free process based on direct melt compounding and extrusion. The optimal CNT content in the filaments for FDM was found to be 6 wt %; for this composite, a detailed investigation of the thermal, mechanical and electrical properties was performed. Presence of CNT in ABS filaments and 3D-printed parts resulted in a significant enhancement of the tensile modulus and strength, accompanied by a reduction of the elongation at break. As documented by dynamic mechanical thermal analysis, the stiffening effect of CNTs in ABS is particularly pronounced at high temperatures. Besides, the presence of CNT in 3D-printed parts accounts for better creep and thermal dimensional stabilities of 3D-printed parts, accompanied by a reduction of the coefficient of thermal expansion). 3D-printed nanocomposite samples with 6 wt % of CNT exhibited a good electrical conductivity, even if lower than pristine composite filaments. PMID- 29346292 TI - Isoform Sequencing and State-of-Art Applications for Unravelling Complexity of Plant Transcriptomes. AB - Single-molecule real-time (SMRT) sequencing developed by PacBio, also called third-generation sequencing (TGS), offers longer reads than the second-generation sequencing (SGS). Given its ability to obtain full-length transcripts without assembly, isoform sequencing (Iso-Seq) of transcriptomes by PacBio is advantageous for genome annotation, identification of novel genes and isoforms, as well as the discovery of long non-coding RNA (lncRNA). In addition, Iso-Seq gives access to the direct detection of alternative splicing, alternative polyadenylation (APA), gene fusion, and DNA modifications. Such applications of Iso-Seq facilitate the understanding of gene structure, post-transcriptional regulatory networks, and subsequently proteomic diversity. In this review, we summarize its applications in plant transcriptome study, specifically pointing out challenges associated with each step in the experimental design and highlight the development of bioinformatic pipelines. We aim to provide the community with an integrative overview and a comprehensive guidance to Iso-Seq, and thus to promote its applications in plant research. PMID- 29346293 TI - Fabry-Perot Interferometric High-Temperature Sensing Up to 1200 degrees C Based on a Silica Glass Photonic Crystal Fiber. AB - A Fabry-Perot interferometric sensor for temperature measurement was fabricated based on a silica glass solid-core photonic crystal fiber with a central air bore. By splicing a stub of photonic crystal fiber to a standard single-mode fiber, an intrinsic Fabry-Perot cavity was formed inside the photonic crystal fiber. Sensing experiment results show that the sensor can work stably for a consecutive 24 h under temperatures up to 1100 degrees C, and the short-term operation temperature can reach as high as 1200 degrees C (<30 min). In the measurement range of 300-1200 degrees C, the temperature sensitivity of the peak wavelength shift can reach as high as 15.61 pm/ degrees C, with a linearity of 99.76%. The presented interferometric sensor is compact in size and possesses advantages such as an extended working range and high sensitivity, showing promising application prospects. PMID- 29346294 TI - GC-MS Analysis of the Volatile Constituents in the Leaves of 14 Compositae Plants. AB - The green organs, especially the leaves, of many Compositae plants possess characteristic aromas. To exploit the utility value of these germplasm resources, the constituents, mainly volatile compounds, in the leaves of 14 scented plant materials were qualitatively and quantitatively compared via gas chromatography mass spectrometry (GC-MS). A total of 213 constituents were detected and tentatively identified in the leaf extracts, and terpenoids (especially monoterpene and sesquiterpene derivatives), accounting for 40.45-90.38% of the total compounds, were the main components. The quantitative results revealed diverse concentrations and compositions of the chemical constituents between species. Principal component analysis (PCA) showed that different groups of these Compositae plants were characterized by main components of alpha-thujone, germacrene D, eucalyptol, beta-caryophyllene, and camphor, for example. On the other hand, cluster memberships corresponding to the molecular phylogenetic framework, were found by hierarchical cluster analysis (HCA) based on the terpenoid composition of the tested species. These results provide a phytochemical foundation for the use of these scented Compositae plants, and for the further study of the chemotaxonomy and differential metabolism of Compositae species. PMID- 29346295 TI - Peri-Elastodynamic Simulations of Guided Ultrasonic Waves in Plate-Like Structure with Surface Mounted PZT. AB - Peridynamic based elastodynamic computation tool named Peri-elastodynamics is proposed herein to simulate the three-dimensional (3D) Lamb wave modes in materials for the first time. Peri-elastodynamics is a nonlocal meshless approach which is a scale-independent generalized technique to visualize the acoustic and ultrasonic waves in plate-like structure, micro-electro-mechanical systems (MEMS) and nanodevices for their respective characterization. In this article, the characteristics of the fundamental Lamb wave modes are simulated in a sample plate-like structure. Lamb wave modes are generated using a surface mounted piezoelectric (PZT) transducer which is actuated from the top surface. The proposed generalized Peri-elastodynamics method is not only capable of simulating two dimensional (2D) in plane wave under plane strain condition formulated previously but also capable of accurately simulating the out of plane Symmetric and Antisymmetric Lamb wave modes in plate like structures in 3D. For structural health monitoring (SHM) of plate-like structures and nondestructive evaluation (NDE) of MEMS devices, it is necessary to simulate the 3D wave-damage interaction scenarios and visualize the different wave features due to damages. Hence, in addition, to simulating the guided ultrasonic wave modes in pristine material, Lamb waves were also simulated in a damaged plate. The accuracy of the proposed technique is verified by comparing the modes generated in the plate and the mode shapes across the thickness of the plate with theoretical wave analysis. PMID- 29346296 TI - Highly Sensitive Strain Sensor Based on a Novel Mach-Zehnder Interferometer with TCF-PCF Structure. AB - A highly sensitive strain sensor based on a novel fiber in line Mach-Zehnder interferometer (MZI) was demonstrated experimentally. The MZI was realized by splicing a section of photonic crystal fiber (PCF) with the same length of thin core fiber (TCF) between two single mode fibers (SMFs). The fringe visibility of MZI can reach as high as 20 dB in air. In particular, the strain sensitivity of 1.95 pm/MUepsilon was achieved within a range from 0 to 4000 MUepsilon. Furthermore, the strain properties of different length of MZI was investigated. It was found that the sensitivity was weekly dependent on the length of MZI. The strain sensitivities corresponding to the MZI with 35 mm PCF, 40 mm PCF and 45 mm PCF at 1550 nm band were -1.78 pm/MUepsilon, -1.73 pm/MUepsilon and -1.63 pm/MUepsilon, respectively. Additionally, the sensor has advantages of simple fabrication, compact size and high sensitivity as well as good fringe visibility. PMID- 29346297 TI - The Dynamic Performance of Flexural Ultrasonic Transducers. AB - Flexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal. The performance of flexural ultrasonic transducers has been largely limited to excitation through a short voltage burst signal at a designated mechanical resonance frequency. However, a steady-state amplitude response is not generated instantaneously in a flexural ultrasonic transducer from a drive excitation signal, and differences in the drive characteristics between transmitting and receiving transducers can affect the measured response. This research investigates the dynamic performance of flexural ultrasonic transducers using acoustic microphone measurements and laser Doppler vibrometry, supported by a detailed mechanical analog model, in a process which has not before been applied to the flexural ultrasonic transducer. These techniques are employed to gain insights into the physics of their vibration behaviour, vital for the optimisation of industrial ultrasound systems. PMID- 29346298 TI - Motion Tracking System for Robust Non-Contact Blood Perfusion Sensor. AB - We propose a motion-robust laser Doppler flowmetry (LDF) system that can be used as a non-contact blood perfusion sensor for medical diagnosis. Endoscopic LDF systems are typically limited in their usefulness in clinical contexts by the need for the natural organs to be immobilized, as serious motion artifacts due to the axial surface displacement can interfere with blood perfusion measurements. In our system, the focusing lens moves to track the motion of the target using a low-frequency reference signal in the optical data, enabling the suppression of these motion artifacts in the axial direction. This paper reports feasibility tests on a prototype of this system using a microfluidic phantom as a measurement target moving in the direction of the optical axis. The frequency spectra detected and the perfusion values calculated from those spectra show that the motion tracking system is capable of suppressing motion artifacts in perfusion readings. We compared the prototype LDF system's measurements with and without motion feedback, and found that motion tracking improves the fidelity of the perfusion signal by as much as 87%. PMID- 29346299 TI - Meteo and Hydrodynamic Measurements to Detect Physical Processes in Confined Shallow Seas. AB - Coastal sites with typical lagoon features are extremely vulnerable, often suffering from scarce circulation. Especially in the case of shallow basins subjected to strong anthropization and urban discharges, it is fundamental to monitor their hydrodynamics and water quality. The proper detection of events by high performance sensors and appropriate analysis of sensor signals has proved to be a necessary tool for local authorities and stakeholders, leading to early warning and preventive measures against environmental degradation and related hazards. At the same time, assessed datasets are not only essential to deepen the knowledge of the physical processes in the target basin, but are also necessary to calibrate and validate modelling systems providing forecasts. The present paper aims to show how long-term and continuous recordings of meteorological and hydrodynamic data, collected in a semi-enclosed sea, can be managed to rapidly provide fundamental insights on its hydrodynamic structure. The acquired signals have been analyzed in time domain, processed and finally, correlated. The adopted method is simple, feasible and easily replicable. Even if the results are site dependent, the procedure is generic, and depends on having good quality available data. To show how this might be employed, a case study is examined. In fact, it has been applied to a coastal system, located in Southern Italy, where two monitoring stations are placed in two interconnected basins. The inferred results show that the system is not wind dominated, and that the annual trends in the wind regime, wave spreading and current circulation are not independent, but rather reiterate. These deductions are of great interest as a predictive perspective and for numerical modelling. PMID- 29346300 TI - Trapezium Bone Density-A Comparison of Measurements by DXA and CT. AB - Bone density may influence the primary fixation of cementless implants, and poor bone density may increase the risk of implant failure. Before deciding on using total joint replacement as treatment in osteoarthritis of the trapeziometacarpal joint, it is valuable to determine the trapezium bone density. The aim of this study was to: (1) determine the correlation between measurements of bone mineral density of the trapezium obtained by dual-energy X-ray absorptiometry (DXA) scans by a circumference method and a new inner-ellipse method; and (2) to compare those to measurements of bone density obtained by computerized tomography (CT) scans in Hounsfield units (HU). We included 71 hands from 59 patients with a mean age of 59 years (43-77). All patients had Eaton-Glickel stage II-IV trapeziometacarpal (TM) joint osteoarthritis, were under evaluation for trapeziometacarpal total joint replacement, and underwent DXA and CT wrist scans. There was an excellent correlation (r = 0.94) between DXA bone mineral density measures using the circumference and the inner-ellipse method. There was a moderate correlation between bone density measures obtained by DXA- and CT-scans with (r = 0.49) for the circumference method, and (r = 0.55) for the inner ellipse method. DXA may be used in pre-operative evaluation of the trapezium bone quality, and the simpler DXA inner-ellipse measurement method can replace the DXA circumference method in estimation of bone density of the trapezium. PMID- 29346302 TI - Smart Device-Based Notifications to Promote Healthy Behavior Related to Childhood Obesity and Overweight. AB - Obesity is one of the most serious public health challenges of the 21st century and it is a threat to the life of people according to World Health Organization. In this scenario, family environment is important to establish healthy habits which help to reduce levels of obesity and control overweight in children. However, little efforts have been focused on helping parents to promote and have healthy lifestyles. In this paper, we present two smart device-based notification prototypes to promote healthy behavior with the aim of avoiding childhood overweight and obesity. The first prototype helps parents to follow a healthy snack routine, based on a nutritionist suggestion. Using a fridge magnet, parents receive graphical reminders of which snacks they and their children should consume. The second prototype provides a graphical reminder that prevents parents from forgetting the required equipment to practice sports. Prototypes were evaluated by nine nutritionists from three countries (Costa Rica, Mexico and Spain). Evaluations were based on anticipation of use and the ergonomics of human system interaction according to the ISO 9241-210. Results show that the system is considered useful. Even though they might not be willing to use the system, they would recommend it to their patients. Based on the ISO 9241-210 the best ranked features were the system's comprehensibility, the perceived effectiveness and clarity. The worst ranked features were the system's suitability for learning and its discriminability. PMID- 29346301 TI - BRAF and MEK Inhibitors Influence the Function of Reprogrammed T Cells: Consequences for Adoptive T-Cell Therapy. AB - BRAF and MEK inhibitors (BRAFi/MEKi), the standard treatment for patients with BRAFV600 mutated melanoma, are currently explored in combination with various immunotherapies, notably checkpoint inhibitors and adoptive transfer of receptor transfected T cells. Since two BRAFi/MEKi combinations with similar efficacy are approved, potential differences in their effects on immune cells would enable a rational choice for triple therapies. Therefore, we characterized the influence of the clinically approved BRAFi/MEKi combinations dabrafenib (Dabra) and trametinib (Tram) vs. vemurafenib (Vem) and cobimetinib (Cobi) on the activation and functionality of chimeric antigen receptor (CAR)-transfected T cells. We co cultured CAR-transfected CD8+ T cells and target cells with clinically relevant concentrations of the inhibitors and determined the antigen-induced cytokine secretion. All BRAFi/MEKi reduced this release as single agents, with Dabra having the mildest inhibitory effect, and Dabra + Tram having a clearly milder inhibitory effect than Vem + Cobi. A similar picture was observed for the upregulation of the activation markers CD25 and CD69 on CAR-transfected T cells after antigen-specific stimulation. Most importantly, the cytolytic capacity of the CAR-T cells was significantly inhibited by Cobi and Vem + Cobi, whereas the other kinase inhibitors showed no effect. Therefore, the combination Dabra + Tram would be more suitable for combining with T-cell-based immunotherapy than Vem + Cobi. PMID- 29346303 TI - Micro-Spherical Sulfur/Graphene Oxide Composite via Spray Drying for High Performance Lithium Sulfur Batteries. AB - An efficient, industry-accepted spray drying method was used to synthesize micro spherical sulfur/graphene oxide (S/GO) composites as cathode materials within lithium sulfur batteries. The as-designed wrapping of the sulfur-nanoparticles, with wrinkled GO composites, was characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The unique morphological design of this material enabled superior discharge capacity and cycling performance, demonstrating a high initial discharge capacity of 1400 mAh g-1 at 0.1 C. The discharge capacity remained at 828 mAh g-1 after 150 cycles. The superior electrochemical performance indicates that the S/GO composite improves electrical conductivity and alleviates the shuttle effect. This study represents the first time such a facile spray drying method has been adopted for lithium sulfur batteries and used in the fabrication of S/GO composites. PMID- 29346304 TI - 'Total Pain' in Children with Severe Neurological Impairment. AB - Many children with palliative care needs experience difficulty in managing pain. Perhaps none more so than those with severe neurological impairment. For many years; behaviours in these children were misunderstood. As a result; pain was poorly recognised and inadequately managed. Significant advances have been made in the assessment and management of pain in this challenging group of patients. We summarise these advances; drawing on our own experience working with infants; children and young adults with palliative care needs within a UK tertiary paediatric palliative care service. We expand on the recent understanding of 'Total Pain'; applying a holistic approach to pain assessment and management in children with severe neurological impairment. PMID- 29346305 TI - The Sustainable Development Assessment of Reservoir Resettlement Based on a BP Neural Network. AB - Resettlement affects not only the resettlers' production activities and life but also, directly or indirectly, the normal operation of power stations, the sustainable development of the resettlers, and regional social stability. Therefore, a scientific evaluation index system for the sustainable development of reservoir resettlement must be established that fits Chinese national conditions and not only promotes reservoir resettlement research but also improves resettlement practice. This essay builds an evaluation index system for resettlers' sustainable development based on a back-propagation (BP) neural network, which can be adopted in China, taking the resettlement necessitated by step hydropower stations along the Wujiang River cascade as an example. The assessment results show that the resettlement caused by step power stations along the Wujiang River is sustainable, and this evaluation supports the conclusion that national policies and regulations, which are undergoing constant improvement, and resettlement has increasingly improved. The results provide a reference for hydropower reservoir resettlement in developing countries. PMID- 29346306 TI - Zinc Tantalum Oxynitride (ZnTaO2N) Photoanode Modified with Cobalt Phosphate Layers for the Photoelectrochemical Oxidation of Alkali Water. AB - Photoanodes fabricated by the electrophoretic deposition of a thermally prepared zinc tantalum oxynitride (ZnTaO2N) catalyst onto indium tin oxide (ITO) substrates show photoactivation for the oxygen evolution reaction (OER) in alkaline solutions. The photoactivity of the OER is further boosted by the photodeposition of cobalt phosphate (CoPi) layers onto the surface of the ZnTaO2N photoanodes. Structural, morphological, and photoelectrochemical (PEC) properties of the modified ZnTaO2N photoanodes are studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet visible (UV-Vis) diffuse reflectance spectroscopy, and electrochemical techniques. The presence of the CoPi layer significantly improved the PEC performance of water oxidation in an alkaline sulphate solution. The photocurrent-voltage behavior of the CoPi modified ZnTaO2N anodes was improved, with the influence being more prominent at lower oxidation potentials. A stable photocurrent density of about 2.3 mA.cm-2 at 1.23 V vs. RHE was attained upon visible light illumination. Relative to the ZnTaO2N photoanodes, an almost three-fold photocurrent increase was achieved at the CoPi/ZnTaO2N photoelectrode. Perovskite-based oxynitrides are modified using an oxygen-evolution co-catalyst of CoPi, and provide a new dimension for enhancing the photoactivity of oxygen evolution in solar-assisted water-splitting reactions. PMID- 29346307 TI - Knowledge and Attitudes of General Practitioners and Sexual Health Care Professionals Regarding Human Papillomavirus Vaccination for Young Men Who Have Sex with Men. AB - Men who have sex with men (MSM) may be at higher risk for human papillomavirus (HPV)-associated cancers. Healthcare professionals' recommendations can affect HPV vaccination uptake. Since 2016, MSM up to 45 years have been offered HPV vaccination at genitourinary medicine (GUM) clinics in a pilot programme, and primary care was recommended as a setting for opportunistic vaccination. Vaccination prior to potential exposure to the virus (i.e., sexual debut) is likely to be most efficacious, therefore a focus on young MSM (YMSM) is important. This study aimed to explore and compare the knowledge and attitudes of UK General Practitioners (GPs) and sexual healthcare professionals (SHCPs) regarding HPV vaccination for YMSM (age 16-24). A cross-sectional study using an online questionnaire examined 38 GPs and 49 SHCPs, including 59 (67.82%) females with a mean age of 40.71 years. Twenty-two participants (20 SHCPs, p < 0.001) had vaccinated a YMSM patient against HPV. GPs lack of time (25/38, 65.79%) and SHCP staff availability (27/49, 55.10%) were the main reported factors preventing YMSM HPV vaccination. GPs were less likely than SHCPs to believe there was sufficient evidence for vaccinating YMSM (OR = 0.02, 95% CI = 0.01, 0.47); less likely to have skills to identify YMSM who may benefit from vaccination (OR = 0.03, 95% CI = 0.01, 0.15); and less confident recommending YMSM vaccination (OR = 0.01, 95% CI = 0.00, 0.01). GPs appear to have different knowledge, attitudes, and skills regarding YMSM HPV vaccination when compared to SHCPs. PMID- 29346310 TI - AR Signaling in Human Malignancies: Prostate Cancer and Beyond. AB - The notion that androgens and androgen receptor (AR) signaling are the hallmarks of prostate cancer oncogenesis and disease progression is generally well accepted. What is more poorly understood is the role of AR signaling in other human malignancies. This special issue of Cancers initially reviews the role of AR in advanced prostate cancer, and then explores the potential importance of AR signaling in other epithelial malignancies. The first few articles focus on the use of novel AR-targeting therapies in castration-resistant prostate cancer and the mechanisms of resistance to novel antiandrogens, and they also outline the interaction between AR and other cellular pathways, including PI3 kinase signaling, transcriptional regulation, angiogenesis, stromal factors, Wnt signaling, and epigenetic regulation in prostate cancer. The next several articles review the possible role of androgens and AR signaling in breast cancer, bladder cancer, salivary gland cancer, and hepatocellular carcinoma, as well as the potential treatment implications of using antiandrogen therapies in these non prostatic malignancies. PMID- 29346308 TI - Tissue Engineering to Improve Immature Testicular Tissue and Cell Transplantation Outcomes: One Step Closer to Fertility Restoration for Prepubertal Boys Exposed to Gonadotoxic Treatments. AB - Despite their important contribution to the cure of both oncological and benign diseases, gonadotoxic therapies present the risk of a severe impairment of fertility. Sperm cryopreservation is not an option to preserve prepubertal boys' reproductive potential, as their seminiferous tubules only contain spermatogonial stem cells (as diploid precursors of spermatozoa). Cryobanking of human immature testicular tissue (ITT) prior to gonadotoxic therapies is an accepted practice. Evaluation of cryopreserved ITT using xenotransplantation in nude mice showed the survival of a limited proportion of spermatogonia and their ability to proliferate and initiate differentiation. However, complete spermatogenesis could not be achieved in the mouse model. Loss of germ cells after ITT grafting points to the need to optimize the transplantation technique. Tissue engineering, a new branch of science that aims at improving cellular environment using scaffolds and molecules administration, might be an approach for further progress. In this review, after summarizing the lessons learned from human prepubertal testicular germ cells or tissue xenotransplantation experiments, we will focus on the benefits that might be gathered using bioengineering techniques to enhance transplantation outcomes by optimizing early tissue graft revascularization, protecting cells from toxic insults linked to ischemic injury and exploring strategies to promote cellular differentiation. PMID- 29346309 TI - The Role of E6 Spliced Isoforms (E6*) in Human Papillomavirus-Induced Carcinogenesis. AB - Persistent infections with High Risk Human Papillomaviruses (HR-HPVs) are the main cause of cervical cancer development. The E6 and E7 oncoproteins of HR-HPVs are derived from a polycistronic pre-mRNA transcribed from an HPV early promoter. Through alternative splicing, this pre-mRNA produces a variety of E6 spliced transcripts termed E6*. In pre-malignant lesions and HPV-related cancers, different E6/E6* transcriptional patterns have been found, although they have not been clearly associated to cancer development. Moreover, there is a controversy about the participation of E6* proteins in cancer progression. This review addresses the regulation of E6 splicing and the different functions that have been found for E6* proteins, as well as their possible role in HPV-induced carcinogenesis. PMID- 29346312 TI - Sidewalk Landscape Structure and Thermal Conditions for Child and Adult Pedestrians. AB - Walking is being promoted for health and transportation purposes across all climatic regions in the US and beyond. Despite this, an uncomfortable microclimate condition along sidewalks is one of the major deterrents of walking, and more empirical research is needed to determine the risks of heat exposure to pedestrians while walking. This study examined the effect of street trees and grass along sidewalks on air temperatures. A series of thermal images were taken at the average heights of adults and children in the US to objectively measure the air temperatures of 10 sidewalk segments in College Station, TX, USA. After controlling the other key physical environmental conditions, sidewalks with more trees or wider grass buffer areas had lower air temperatures than those with less vegetation. Children were exposed to higher temperatures due to the greater exposure or proximity to the pavement surface, which tends to have higher radiant heat. Multivariate regression analysis suggested that the configuration of trees and grass buffers along the sidewalks helped to promote pleasant thermal conditions and reduced the differences in ambient air temperatures measured at child and adult heights. This study suggests that street trees and vegetated ground help reduce the air temperatures, leading to more thermally comfortable environments for both child and adult pedestrians in warm climates. The thermal implications of street landscape require further attention by researchers and policy makers that are interested in promoting outdoor walking. PMID- 29346313 TI - A Comparison of the Chemical Composition, In Vitro Bioaccessibility and Antioxidant Activity of Phenolic Compounds from Rice Bran and Its Dietary Fibres. AB - The composition, in vitro bioaccessibility and antioxidant activities of the phenolic compounds in defatted rice bran (DRB) and its soluble and insoluble dietary fibres were systematically evaluated in this study. The total phenolic content of insoluble dietary fibre from DRB (IDFDRB) was much higher than that of the soluble dietary fibre from DRB (SDFDRB) but was 10% lower than that of DRB. Bound phenolics accounted for more than 90% of the total phenolics in IDFDRB, whereas they accounted for 34.2% and 40.5% of the total phenolics in DRB and SDFDRB, respectively. Additionally, the phenolic profiles and antioxidant activities were significantly different in DRB, SDFDRB and IDFDRB. The phenolic compounds in IDFDRB were much less bioaccessibility than those in DRB and SDFDRB due to the higher proportion of bound phenolics in IDFDRB. Considering that bound phenolics could be released from food matrices by bacterial enzymes in the large intestine and go on to exert significant beneficial health effects in vivo, further studies on IDFDRB are needed to investigate the release of the phenolics from IDFDRB via gut microbiota and the related health benefits. PMID- 29346311 TI - Apoptotic and Nonapoptotic Activities of Pterostilbene against Cancer. AB - Cancer is a major cause of death. The outcomes of current therapeutic strategies against cancer often ironically lead to even increased mortality due to the subsequent drug resistance and to metastatic recurrence. Alternative medicines are thus urgently needed. Cumulative evidence has pointed out that pterostilbene (trans-3,5-dimethoxy-4-hydroxystilbene, PS) has excellent pharmacological benefits for the prevention and treatment for various types of cancer in their different stages of progression by evoking apoptotic or nonapoptotic anti-cancer activities. In this review article, we first update current knowledge regarding tumor progression toward accomplishment of metastasis. Subsequently, we review current literature regarding the anti-cancer activities of PS. Finally, we provide future perspectives to clinically utilize PS as novel cancer therapeutic remedies. We, therefore, conclude and propose that PS is one ideal alternative medicine to be administered in the diet as a nutritional supplement. PMID- 29346314 TI - Sustainable Transportation Attitudes and Health Behavior Change: Evaluation of a Brief Stage-Targeted Video Intervention. AB - Promoting physical activity and sustainable transportation is essential in the face of rising health care costs, obesity rates, and other public health threats resulting from lack of physical activity. Targeted communications can encourage distinct population segments to adopt active and sustainable transportation modes. Our work is designed to promote the health, social, and environmental benefits of sustainable/active transportation (ST) using the Transtheoretical Model of Change (TTM), which has been successfully applied to a range of health, and more recently, sustainability behaviors. Earlier, measurement development confirmed both the structure of ST pros and cons and efficacy measures as well as the relationship between these constructs and ST stages of change, replicating results found for many other behaviors. The present paper discusses a brief pre post video pilot intervention study designed for precontemplators and contemplators (N = 604) that was well received, effective in moving respondents towards increased readiness for ST behavior change, and improving some ST attitudes, significantly reducing the cons of ST. This research program shows that a brief stage-targeted behavior change video can increase readiness and reduce the cons for healthy transportation choices. PMID- 29346315 TI - Dietary Total Prenylflavonoids from the Fruits of Psoralea corylifolia L. Prevents Age-Related Cognitive Deficits and Down-Regulates Alzheimer's Markers in SAMP8 Mice. AB - Alzheimer's disease (AD) is a serious threat for the aging society. In this study, we examined the preventive effect of the total prenylflavonoids (TPFB) prepared from the dried fruits of Psoralea corylifolia L., using an age-related AD mouse model SAMP8. We found that long-term dietary TPFB at 50 mg/kg.day significantly improved cognitive performance of the SAMP8 mice in Morris water maze tests, similar to 150 mg/kg.day of resveratrol, a popular neuro-protective compound. Furthermore, TPFB treatment showed significant improvements in various AD markers in SAMP8 brains, which were restored to near control levels of the normal mice, SAMR1. TPFB significantly reduced the level of amyloid beta-peptide 42 (Abeta42), inhibited hyperphosphorylation of the microtubule-associated protein Tau, induced phosphorylation of Ser9 of the glycogen synthase kinase 3beta (GSK-3beta), and decreased the expression of the proinflammatory cytokines TNFalpha, IL-6, and IL-1beta. Finally, TPFB also markedly reduced the level of serum derivatives of reactive oxygen metabolites (d-ROMs), a biomarker of oxidative stress in vivo. These results showed that dietary TPFB could effectively prevent age-related cognitive deficits and AD-like neurobiochemical changes, and may have a potential role in the prevention of Alzheimer's disease. PMID- 29346316 TI - Chronic Dietary Intake of Enniatin B in Broiler Chickens Has Low Impact on Intestinal Morphometry and Hepatic Histology, and Shows Limited Transfer to Liver Tissue. AB - The Fusarium mycotoxin enniatin B (ENN B) is a so-called emerging mycotoxin frequently contaminating poultry feed. To investigate the impact of chronic ENN B exposure on animal health, broiler chickens were fed either a diet naturally contaminated with ENN B (2352 ug/kg) or a control diet (135 ug/kg) for 2, 7, 14, or 21 days. ENN B concentrations were determined in plasma and liver using a validated ultra-high performance liquid chromatography-tandem mass spectrometry UHPLC-MS/MS method. Liver was evaluated histologically, and the villus length and crypt depth of the duodenum, jejunum, and ileum were measured. Histopathology of the livers did not reveal major abnormalities. Feeding an ENN B-contaminated diet could possibly inhibit the proliferation of enterocytes in the duodenal crypts, but did not affect villus length, crypt depth, or villus length-crypt depth ratio of the jejunum and ileum. ENN B levels in plasma and liver were significantly higher in the ENN B-fed group and ranged between <25-264 pg/mL and <0.05-0.85 ng/g, respectively. ENN B carry-over rates from feed to liver tissue were 0.005 0.014% and 0.034-0.109% in the ENN B and control group, respectively. Carry-over rates were low and indicated a limited contribution of poultry tissue-derived products to the total dietary ENN B intake for humans. The above results support the opinion of the European Food Safety Authority stating that adverse health effects from ENN B in broiler chickens are unlikely. PMID- 29346318 TI - Differences between Outdoor and Indoor Sound Levels for Open, Tilted, and Closed Windows. AB - Noise exposure prediction models for health effect studies normally estimate free field exposure levels outside. However, to assess the noise exposure inside dwellings, an estimate of indoor sound levels is necessary. To date, little field data is available about the difference between indoor and outdoor noise levels and factors affecting the damping of outside noise. This is a major cause of uncertainty in indoor noise exposure prediction and may lead to exposure misclassification in health assessments. This study aims to determine sound level differences between the indoors and the outdoors for different window positions and how this sound damping is related to building characteristics. For this purpose, measurements were carried out at home in a sample of 102 Swiss residents exposed to road traffic noise. Sound pressure level recordings were performed outdoors and indoors, in the living room and in the bedroom. Three scenarios-of open, tilted, and closed windows-were recorded for three minutes each. For each situation, data on additional parameters such as the orientation towards the source, floor, and room, as well as sound insulation characteristics were collected. On that basis, linear regression models were established. The median outdoor-indoor sound level differences were of 10 dB(A) for open, 16 dB(A) for tilted, and 28 dB(A) for closed windows. For open and tilted windows, the most relevant parameters affecting the outdoor-indoor differences were the position of the window, the type and volume of the room, and the age of the building. For closed windows, the relevant parameters were the sound level outside, the material of the window frame, the existence of window gaskets, and the number of windows. PMID- 29346317 TI - Liposomal TriCurin, A Synergistic Combination of Curcumin, Epicatechin Gallate and Resveratrol, Repolarizes Tumor-Associated Microglia/Macrophages, and Eliminates Glioblastoma (GBM) and GBM Stem Cells. AB - Glioblastoma (GBM) is a deadly brain tumor with a current mean survival of 12-15 months. Despite being a potent anti-cancer agent, the turmeric ingredient curcumin (C) has limited anti-tumor efficacy in vivo due to its low bioavailability. We have reported earlier a strategy involving the use two other polyphenols, epicatechin gallate (E) from green tea and resveratrol (R) from red grapes at a unique, synergistic molar ratio with C (C:E:R: 4:1:12.5, termed TriCurin) to achieve superior potency against HPV+ tumors than C alone at C:E:R (MUM): 32:8:100 (termed 32 MUM+ TriCurin). We have now prepared liposomal TriCurin (TrLp) and demonstrated that TrLp boosts activated p53 in cultured GL261 mouse GBM cells to trigger apoptosis of GBM and GBM stem cells in vitro. TrLp administration into mice yielded a stable plasma concentration of 210 nM C for 60 min, which, though sub-lethal for cultured GL261 cells, was able to cause repolarization of M2-like tumor (GBM)-associated microglia/macrophages to the tumoricidal M1-like phenotype and intra-GBM recruitment of activated natural killer cells. The intratumor presence of such tumoricidal immune cells was associated with concomitant suppression of tumor-load, and apoptosis of GBM and GBM stem cells. Thus, TrLp is a potential onco-immunotherapeutic agent against GBM tumors. PMID- 29346319 TI - Hierarchical Discriminant Analysis. AB - The Internet of Things (IoT) generates lots of high-dimensional sensor intelligent data. The processing of high-dimensional data (e.g., data visualization and data classification) is very difficult, so it requires excellent subspace learning algorithms to learn a latent subspace to preserve the intrinsic structure of the high-dimensional data, and abandon the least useful information in the subsequent processing. In this context, many subspace learning algorithms have been presented. However, in the process of transforming the high dimensional data into the low-dimensional space, the huge difference between the sum of inter-class distance and the sum of intra-class distance for distinct data may cause a bias problem. That means that the impact of intra-class distance is overwhelmed. To address this problem, we propose a novel algorithm called Hierarchical Discriminant Analysis (HDA). It minimizes the sum of intra-class distance first, and then maximizes the sum of inter-class distance. This proposed method balances the bias from the inter-class and that from the intra-class to achieve better performance. Extensive experiments are conducted on several benchmark face datasets. The results reveal that HDA obtains better performance than other dimensionality reduction algorithms. PMID- 29346321 TI - New Control Paradigms for Resources Saving: An Approach for Mobile Robots Navigation. AB - In this work, an event-based control scheme is presented. The proposed system has been developed to solve control problems appearing in the field of Networked Control Systems (NCS). Several models and methodologies have been proposed to measure different resources consumptions. The use of bandwidth, computational load and energy resources have been investigated. This analysis shows how the parameters of the system impacts on the resources efficiency. Moreover, the proposed system has been compared with its equivalent discrete-time solution. In the experiments, an application of NCS for mobile robots navigation has been set up and its resource usage efficiency has been analysed. PMID- 29346320 TI - C-Phycocyanin and Phycocyanobilin as Remyelination Therapies for Enhancing Recovery in Multiple Sclerosis and Ischemic Stroke: A Preclinical Perspective. AB - Myelin loss has a crucial impact on behavior disabilities associated to Multiple Sclerosis (MS) and Ischemic Stroke (IS). Although several MS therapies are approved, none of them promote remyelination in patients, limiting their ability for chronic recovery. With no available therapeutic options, enhanced demyelination in stroke survivors is correlated with a poorer behavioral recovery. Here, we show the experimental findings of our group and others supporting the remyelinating effects of C-Phycocyanin (C-PC), the main biliprotein of Spirulina platensis and its linked tetrapyrrole Phycocyanobilin (PCB), in models of these illnesses. C-PC promoted white matter regeneration in rats and mice affected by experimental autoimmune encephalomyelitis. Electron microscopy analysis in cerebral cortex from ischemic rats revealed a potent remyelinating action of PCB treatment after stroke. Among others biological processes, we discussed the role of regulatory T cell induction, the control of oxidative stress and pro-inflammatory mediators, gene expression modulation and COX-2 inhibition as potential mechanisms involved in the C-PC and PCB effects on the recruitment, differentiation and maturation of oligodendrocyte precursor cells in demyelinated lesions. The assembled evidence supports the implementation of clinical trials to demonstrate the recovery effects of C-PC and PCB in these diseases. PMID- 29346322 TI - Regioselective Synthesis of Procyanidin B6, A 4-6-Condensed (+)-Catechin Dimer, by Intramolecular Condensation. AB - Proanthocyanidins, also known as condensed tannins or oligomeric flavonoids, are found in many edible plants and exhibit interesting biological activities. Herein, we report a new, simple method for the stereoselective synthesis of procyanidin B6, a (+)-catechin-(4-6)-(+)-catechin dimer, by Lewis acid-catalyzed intramolecular condensation. The 5-O-t-butyldimethylsilyl (TBDMS) group of 5,7,3'4'-tetra-O-TBDMS-(+)-catechin was regioselectively removed using trifluoroacetic acid, leading to the "regio-controlled" synthesis of procyanidin B6. The 5-hydroxyl group of the 7,3',4'-tri-O-TBDMS-(+)-catechin nucleophile and the 3-hydroxyl group of 5,7,3',4'-tetra-O-benzylated-(+)-catechin electrophile were connected with an azelaic acid. The subsequent SnCl4-catalyzed intramolecular condensation proceeded smoothly to give the 4-6-condensed catechin dimer. This is the first report on the complete regioselective synthesis of a 4-6 connected oligomer without modifying the 8-position. PMID- 29346323 TI - Sculling Compensation Algorithm for SINS Based on Two-Time Scale Perturbation Model of Inertial Measurements. AB - In order to decrease the velocity sculling error under vibration environments, a new sculling error compensation algorithm for strapdown inertial navigation system (SINS) using angular rate and specific force measurements as inputs is proposed in this paper. First, the sculling error formula in incremental velocity update is analytically derived in terms of the angular rate and specific force. Next, two-time scale perturbation models of the angular rate and specific force are constructed. The new sculling correction term is derived and a gravitational search optimization method is used to determine the parameters in the two-time scale perturbation models. Finally, the performance of the proposed algorithm is evaluated in a stochastic real sculling environment, which is different from the conventional algorithms simulated in a pure sculling circumstance. A series of test results demonstrate that the new sculling compensation algorithm can achieve balanced real/pseudo sculling correction performance during velocity update with the advantage of less computation load compared with conventional algorithms. PMID- 29346325 TI - Synthesis and Antimicrobial Activity of 4-Substituted 1,2,3-Triazole-Coumarin Derivatives. AB - A new series of coumarin-1,2,3-triazole conjugates with varied alkyl, phenyl and heterocycle moieties at C-4 of the triazole nucleus were synthesized using a copper(I)-catalysed Huisgen 1,3-dipolar cycloaddition reaction of corresponding O propargylated coumarin (3) or N-propargylated coumarin (6) with alkyl or aryl azides. Based on their minimal inhibitory concentrations (MICs) against selected microorganisms, six out of twenty-six compounds showed significant antibacterial activity towards Enterococcus faecalis (MIC = 12.5-50 ug/mL). Moreover, the synthesized triazoles show relatively low toxicity against human erythrocytes. PMID- 29346326 TI - Lipid Membrane Nanosensors for Environmental Monitoring: The Art, the Opportunities, and the Challenges. AB - The advent of nanotechnology has brought along new materials, techniques, and concepts, readily adaptable to lipid membrane-based biosensing. The transition from micro-sensors to nano-sensors is neither straightforward nor effortless, yet it leads to devices with superior analytical characteristics: ultra-low detectability, small sample volumes, better capabilities for integration, and more available bioelements and processes. Environmental monitoring remains a complicated field dealing with a large variety of pollutants, several decomposition products, or secondary chemicals produced ad hoc in the short- or medium term, many sub-systems affected variously, and many processes largely unknown. The new generation of lipid membranes, i.e., nanosensors, has the potential for developing monitors with site-specific analytical performance and operational stability, as well as analyte-tailored types of responses. This review presents the state-of-the art, the opportunities for niche applicability, and the challenges that lie ahead. PMID- 29346327 TI - Enhanced Isotopic Ratio Outlier Analysis (IROA) Peak Detection and Identification with Ultra-High Resolution GC-Orbitrap/MS: Potential Application for Investigation of Model Organism Metabolomes. AB - Identifying non-annotated peaks may have a significant impact on the understanding of biological systems. In silico methodologies have focused on ESI LC/MS/MS for identifying non-annotated MS peaks. In this study, we employed in silico methodology to develop an Isotopic Ratio Outlier Analysis (IROA) workflow using enhanced mass spectrometric data acquired with the ultra-high resolution GC Orbitrap/MS to determine the identity of non-annotated metabolites. The higher resolution of the GC-Orbitrap/MS, together with its wide dynamic range, resulted in more IROA peak pairs detected, and increased reliability of chemical formulae generation (CFG). IROA uses two different 13C-enriched carbon sources (randomized 95% 12C and 95% 13C) to produce mirror image isotopologue pairs, whose mass difference reveals the carbon chain length (n), which aids in the identification of endogenous metabolites. Accurate m/z, n, and derivatization information are obtained from our GC/MS workflow for unknown metabolite identification, and aids in silico methodologies for identifying isomeric and non-annotated metabolites. We were able to mine more mass spectral information using the same Saccharomyces cerevisiae growth protocol (Qiu et al. Anal. Chem 2016) with the ultra-high resolution GC-Orbitrap/MS, using 10% ammonia in methane as the CI reagent gas. We identified 244 IROA peaks pairs, which significantly increased IROA detection capability compared with our previous report (126 IROA peak pairs using a GC TOF/MS machine). For 55 selected metabolites identified from matched IROA CI and EI spectra, using the GC-Orbitrap/MS vs. GC-TOF/MS, the average mass deviation for GC-Orbitrap/MS was 1.48 ppm, however, the average mass deviation was 32.2 ppm for the GC-TOF/MS machine. In summary, the higher resolution and wider dynamic range of the GC-Orbitrap/MS enabled more accurate CFG, and the coupling of accurate mass GC/MS IROA methodology with in silico fragmentation has great potential in unknown metabolite identification, with applications for characterizing model organism networks. PMID- 29346328 TI - Comparison of SVM, RF and ELM on an Electronic Nose for the Intelligent Evaluation of Paraffin Samples. AB - Paraffin odor intensity is an important quality indicator when a paraffin inspection is performed. Currently, paraffin odor level assessment is mainly dependent on an artificial sensory evaluation. In this paper, we developed a paraffin odor analysis system to classify and grade four kinds of paraffin samples. The original feature set was optimized using Principal Component Analysis (PCA) and Partial Least Squares (PLS). Support Vector Machine (SVM), Random Forest (RF), and Extreme Learning Machine (ELM) were applied to three different feature data sets for classification and level assessment of paraffin. For classification, the model based on SVM, with an accuracy rate of 100%, was superior to that based on RF, with an accuracy rate of 98.33-100%, and ELM, with an accuracy rate of 98.01-100%. For level assessment, the R2 related to the training set was above 0.97 and the R2 related to the test set was above 0.87. Through comprehensive comparison, the generalization of the model based on ELM was superior to those based on SVM and RF. The scoring errors for the three models were 0.0016-0.3494, lower than the error of 0.5-1.0 measured by industry standard experts, meaning these methods have a higher prediction accuracy for scoring paraffin level. PMID- 29346329 TI - Anti-Phytopathogenic and Cytotoxic Activities of Crude Extracts and Secondary Metabolites of Marine-Derived Fungi. AB - Thirty-one isolates belonging to eight genera in seven orders were identified from 141 strains that were isolated from several marine plants. Alternaria sp. and Fusarium sp. were found to be the predominant fungi. Evaluation of the anti phytopathogenic bacterial and fungal activities, as well as the cytotoxicity of these 31 extracts, revealed that most of them displayed different levels of bioactivities. Due to their interesting bioactivities, two fungal strains Fusarium equiseti (P18) and Alternaria sp. (P8)-were selected for chemical investigation and compounds 1-4 were obtained. The structure of 1 was elucidated by 1D and 2D NMR analysis, as well as high-resolution electrospray ionization mass spectroscopy (HRESIMS), and the absolute configuration of its stereogenic carbon (C-11) was established by comparison of the experimental and calculated electronic circular-dichroism (ECD) spectra. Moreover, alterperylenol (4) exhibited antibacterial activity against Clavibacter michiganensis with a minimum inhibitory concentration (MIC) of 1.95 MUg/mL, which was 2-fold stronger than that of streptomycin sulfate. Additionally, an antibacterial mechanism study revealed that 4 caused membrane hyperpolarization without evidence of destruction of cell membrane integrity. Furthermore, stemphyperylenol (3) displayed potent antifungal activity against Pestallozzia theae and Alternaria brassicicola with MIC values equal to those of carbendazim. The cytotoxicity of 1 and 2 against human lung carcinoma (A-549), human cervical carcinoma (HeLa), and human hepatoma (HepG2) cell lines were also evaluated. PMID- 29346330 TI - Formulation of Poloxamers for Drug Delivery. AB - Poloxamers, also known as Pluronics(r), are block copolymers of poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO), which have an amphiphilic character and useful association and adsorption properties emanating from this. Poloxamers find use in many applications that require solubilization or stabilization of compounds and also have notable physiological properties, including low toxicity. Accordingly, poloxamers serve well as excipients for pharmaceuticals. Current challenges facing nanomedicine revolve around the transport of typically water insoluble drugs throughout the body, followed by targeted delivery. Judicious design of drug delivery systems leads to improved bioavailability, patient compliance and therapeutic outcomes. The rich phase behavior (micelles, hydrogels, lyotropic liquid crystals, etc.) of poloxamers makes them amenable to multiple types of processing and various product forms. In this review, we first present the general solution behavior of poloxamers, focusing on their self assembly properties. This is followed by a discussion of how the self-assembly properties of poloxamers can be leveraged to encapsulate drugs using an array of processing techniques including direct solubilization, solvent displacement methods, emulsification and preparation of kinetically-frozen nanoparticles. Finally, we conclude with a summary and perspective. PMID- 29346332 TI - Owners and Veterinary Surgeons in the United Kingdom Disagree about What Should Happen during a Small Animal Vaccination Consultation. AB - Dog and cat vaccination consultations are a common part of small animal practice in the United Kingdom. Few data are available describing what happens during those consultations or what participants think about their content. The aim of this novel study was to investigate the attitudes of dog and cat owners and veterinary surgeons towards the content of small animal vaccination consultations. Telephone interviews with veterinary surgeons and pet owners captured rich qualitative data. Thematic analysis was performed to identify key themes. This study reports the theme describing attitudes towards the content of the consultation. Diverse preferences exist for what should be prioritised during vaccination consultations, and mismatched expectations may lead to negative experiences. Vaccination consultations for puppies and kittens were described to have a relatively standardised structure with an educational and preventative healthcare focus. In contrast, adult pet vaccination consultations were described to focus on current physical health problems with only limited discussion of preventative healthcare topics. This first qualitative exploration of UK vaccination consultation expectations suggests that the content and consistency of adult pet vaccination consultations may not meet the needs or expectations of all participants. Redefining preventative healthcare to include all preventable conditions may benefit owners, pets and veterinary surgeons, and may help to provide a clearer structure for adult pet vaccination consultations. This study represents a significant advance our understanding of this consultation type. PMID- 29346335 TI - Notes from the Field: Legionellosis Outbreak Associated with a Hotel Aquatics Facility - Tennessee, 2017. PMID- 29346331 TI - Growth Hormone (GH) and Cardiovascular System. AB - This review describes the positive effects of growth hormone (GH) on the cardiovascular system. We analyze why the vascular endothelium is a real internal secretion gland, whose inflammation is the first step for developing atherosclerosis, as well as the mechanisms by which GH acts on vessels improving oxidative stress imbalance and endothelial dysfunction. We also report how GH acts on coronary arterial disease and heart failure, and on peripheral arterial disease, inducing a neovascularization process that finally increases flow in ischemic tissues. We include some preliminary data from a trial in which GH or placebo is given to elderly people suffering from critical limb ischemia, showing some of the benefits of the hormone on plasma markers of inflammation, and the safety of GH administration during short periods of time, even in diabetic patients. We also analyze how Klotho is strongly related to GH, inducing, after being released from the damaged vascular endothelium, the pituitary secretion of GH, most likely to repair the injury in the ischemic tissues. We also show how GH can help during wound healing by increasing the blood flow and some neurotrophic and growth factors. In summary, we postulate that short-term GH administration could be useful to treat cardiovascular diseases. PMID- 29346334 TI - Effect of Gastrointestinal Bleeding on Gastrointestinal Stromal Tumor Patients: A Retrospective Cohort Study. AB - BACKGROUND The contemporary risk classification criteria of gastrointestinal stromal tumors (GISTs) may still have room to improve. The aim of our research was to analyze the impact factors for GIST patients' relapse-free survival (RFS). Furthermore, we explore whether gastrointestinal (1) bleeding will be a valuable indicator to predict GIST patients' prognosis. MATERIAL AND METHODS R0 resection GISTs patients were retrospectively enrolled during an 8-year period at West China Hospital of Sichuan University, and all patients' data were from the WCHSU GIST database. Of a total of 333 GIST patients, 164 patients had GI bleeding. Univariate analysis and Cox regression analysis were used to calculate the survival and recurrence rates. RESULTS Compared with non-GI-bleeding patients, GI bleeding patients had a shorter relapse-free survival (RFS, P=0.003), but among the different risk groups, GI bleeding only affected the RFS rate of the high risk group. A Cox regression analysis illustrated that tumor site (P<0.001), tumor size (P=0.009), mitotic index (P<0.001), tumor rupture (P<0.001), and GI bleeding (P=0.01) were independent indicators for GIST patients' RFS. CONCLUSIONS Our study demonstrates that the RFS of GIST patients with GI bleeding was significantly shorter than that of non-GI-bleeding patients, and GI bleeding was an independent negative factor predicting RFS, while GI bleeding had more influence among high-risk patients. PMID- 29346333 TI - Platelet Rich Plasma: New Insights for Cutaneous Wound Healing Management. AB - The overall increase of chronic degenerative diseases associated with ageing makes wound care a tremendous socioeconomic burden. Thus, there is a growing need to develop novel wound healing therapies to improve cutaneous wound healing. The use of regenerative therapies is becoming increasingly popular due to the low invasive procedures needed to apply them. Platelet-rich plasma (PRP) is gaining interest due to its potential to stimulate and accelerate the wound healing process. The cytokines and growth factors forming PRP play a crucial role in the healing process. This article reviews the emerging field of skin wound regenerative therapies with particular emphasis on PRP and the role of growth factors in the wound healing process. PMID- 29346336 TI - Respiratory Syncytial Virus Seasonality - United States, 2014-2017. AB - Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infection in young children worldwide (1-3). In the United States, RSV infection results in >57,000 hospitalizations and 2 million outpatient visits each year among children aged <5 years (3). Recent studies have highlighted the importance of RSV in adults as well as children (4). CDC reported RSV seasonality nationally, by U.S. Department of Health and Human Services (HHS) regions* and for the state of Florida, using a new statistical method that analyzes polymerase chain reaction (PCR) laboratory detections reported to the National Respiratory and Enteric Virus Surveillance System (NREVSS) (https://www.cdc.gov/surveillance/nrevss/index.html). Nationally, across three RSV seasons, lasting from the week ending July 5, 2014 through July 1, 2017, the median RSV onset occurred at week 41 (mid-October), and lasted 31 weeks until week 18 (early May). The median national peak occurred at week 5 (early February). Using these new methods, RSV season circulation patterns differed from those reported from previous seasons (5). Health care providers and public health officials use RSV circulation data to guide diagnostic testing and to time the administration of RSV immunoprophylaxis for populations at high risk for severe respiratory illness (6). With several vaccines and other immunoprophlyaxis products in development, estimates of RSV circulation are also important to the design of clinical trials and future vaccine effectiveness studies. PMID- 29346337 TI - Notes from the Field: Baylisascaris procyonis Encephalomyelitis in a Toddler - King County, Washington, 2017. PMID- 29346339 TI - QuickStats: Percentage Distribution* of Adult Day Services Center Participants, by Place of Residence? - National Study of Long-Term Care Providers, United States, 2016. AB - In 2016, 51.5% of adult day services center participants lived in a private residence with relative(s), 19.9% lived alone in a private residence, 16.3% lived in an assisted living/residential care community, 5.3% lived in a private residence with nonrelative(s), 4.5% had another living arrangement, and 1.5% lived in a nursing home. PMID- 29346338 TI - Current Cigarette Smoking Among Adults - United States, 2016. AB - The U.S. Surgeon General has concluded that the burden of death and disease from tobacco use in the United States is overwhelmingly caused by cigarettes and other combusted tobacco products (1). Cigarettes are the most commonly used tobacco product among U.S. adults, and about 480,000 U.S. deaths per year are caused by cigarette smoking and secondhand smoke exposure (1). To assess progress toward the Healthy People 2020 target of reducing the proportion of U.S. adults aged >=18 years who smoke cigarettes to <=12.0% (objective TU-1.1),* CDC analyzed data from the 2016 National Health Interview Survey (NHIS). In 2016, the prevalence of current cigarette smoking among adults was 15.5%, which was a significant decline from 2005 (20.9%); however, no significant change has occurred since 2015 (15.1%). In 2016, the prevalence of cigarette smoking was higher among adults who were male, aged 25-64 years, American Indian/Alaska Native or multiracial, had a General Education Development (GED) certificate, lived below the federal poverty level, lived in the Midwest or South, were uninsured or insured through Medicaid, had a disability/limitation, were lesbian, gay, or bisexual (LGB), or had serious psychological distress. During 2005-2016, the percentage of ever smokers who quit smoking increased from 50.8% to 59.0%. Proven population-based interventions are critical to reducing the health and economic burden of smoking-related diseases among U.S. adults, particularly among subpopulations with the highest smoking prevalences (1,2). PMID- 29346341 TI - Erratum: Vol. 66, No. 50. PMID- 29346340 TI - Disparities in Preconception Health Indicators - ?Behavioral Risk Factor Surveillance System, 2013-2015, and Pregnancy Risk Assessment Monitoring System, 2013-2014. AB - PROBLEM/CONDITION: Preconception health is a broad term that encompasses the overall health of nonpregnant women during their reproductive years (defined here as aged 18-44 years). Improvement of both birth outcomes and the woman's health occurs when preconception health is optimized. Improving preconception health before and between pregnancies is critical for reducing maternal and infant mortality and pregnancy-related complications. The National Preconception Health and Health Care Initiative's Surveillance and Research work group suggests ten prioritized indicators that states can use to monitor programs or activities for improving the preconception health status of women of reproductive age. This report includes overall and stratified estimates for nine of these preconception health indicators. REPORTING PERIOD: 2013-2015. DESCRIPTION OF SYSTEMS: Survey data from two surveillance systems are included in this report. The Behavioral Risk Factor Surveillance System (BRFSS) is an ongoing state-based, landline and cellular telephone survey of noninstitutionalized adults in the United States aged >=18 years that is conducted by state and territorial health departments. BRFSS is the main source of self-reported data for states on health risk behaviors, chronic health conditions, and preventive health services primarily related to chronic disease in the United States. The Pregnancy Risk Assessment Monitoring System (PRAMS) is an ongoing U.S. state- and population-based surveillance system administered collaboratively by CDC and state health departments. PRAMS is designed to monitor selected maternal behaviors, conditions, and experiences that occur before, during, and shortly after pregnancy that are self-reported by women who recently delivered a live-born infant. This report summarizes BRFSS and PRAMS data on nine of 10 prioritized preconception health indicators (i.e., depression, diabetes, hypertension, current cigarette smoking, normal weight, recommended physical activity, recent unwanted pregnancy, prepregnancy multivitamin use, and postpartum use of a most or moderately effective contraceptive method) for which the most recent data are available. BRFSS data from all 50 states and the District of Columbia were used for six preconception health indicators: depression, diabetes (excluded if occurring only during pregnancy or if limited to borderline/prediabetes conditions), hypertension (excluded if occurring only during pregnancy or if limited to borderline/prehypertension conditions), current cigarette smoking, normal weight, and recommended physical activity. PRAMS data from 30 states, the District of Columbia, and New York City were used for three preconception health indicators: recent unwanted pregnancy, prepregnancy multivitamin use, and postpartum use of a most or moderately effective contraceptive method by women or their husbands or partners (i.e., male or female sterilization, hormonal implant, intrauterine device, injectable contraceptive, oral contraceptive, hormonal patch, or vaginal ring). Heavy alcohol use during the 3 months before pregnancy also was included in the prioritized set of 10 indicators, but PRAMS data for each reporting area are not available until 2016 for that indicator. Therefore, estimates for heavy alcohol use are not included in this report. All BRFSS preconception health estimates are based on 2014-2015 data except two (hypertension and recommended physical activity are based on 2013 and 2015 data). All PRAMS preconception health estimates rely on 2013-2014 data. Prevalence estimates of indicators are reported for women aged 18-44 years overall, by age group, race-ethnicity, health insurance status, and reporting area. Chi-square tests were conducted to assess differences in indicators by age group, race/ethnicity, and insurance status. RESULTS: During 2013-2015, prevalence estimates of indicators representing risk factors were generally highest and prevalence estimates of health-promoting indicators were generally lowest among older women (35-44 years), non-Hispanic black women, uninsured women, and those residing in southern states. For example, prevalence of ever having been told by a health care provider that they had a depressive disorder was highest among women aged 35-44 years (23.1%) and lowest among women aged 18-24 years (19.2%). Prevalence of postpartum use of a most or moderately effective method of contraception was lowest among women aged 35-44 years (50.6%) and highest among younger women aged 18-24 years (64.9%). Self-reported prepregnancy multivitamin use and getting recommended levels of physical activity were lowest among non Hispanic black women (21.6% and 42.8%, respectively) and highest among non Hispanic white women (37.8% and 53.8%, respectively). Recent unwanted pregnancy was lowest among non-Hispanic white women and highest among non-Hispanic black women (5.0% and 11.6%, respectively). All but three indicators (diabetes, hypertension, and use of a most or moderately effective contraceptive method) varied by insurance status; for instance, prevalence of current cigarette smoking was higher among uninsured women (21.0%) compared with insured women (16.1%), and prevalence of normal weight was lower among women who were uninsured (38.6%), compared with women who were insured (46.1%). By reporting area, the range of women reporting ever having been told by a health care provider that they had diabetes was 5.0% (Alabama) to 1.9% (Utah), and women reporting ever having been told by a health care provider that they had hypertension ranged from 19.2% (Mississippi) to 7.0% (Minnesota). INTERPRETATION: Preconception health risk factors and health-promoting indicators varied by age group, race/ethnicity, insurance status, and reporting area. These disparities highlight subpopulations that might benefit most from interventions that improve preconception health. PUBLIC HEALTH ACTION: Eliminating disparities in preconception health can potentially reduce disparities in two of the leading causes of death in early and middle adulthood (i.e., heart disease and diabetes). Public health officials can use this information to provide a baseline against which to evaluate state efforts to improve preconception health. PMID- 29346342 TI - Attention-Deficit/Hyperactivity Disorder Medication Prescription Claims Among Privately Insured Women Aged 15-44 Years - United States, 2003-2015. AB - Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that affects individuals across the lifespan. ADHD medication use among pregnant women is increasing (1), but consensus about the safety of ADHD medication use during pregnancy is lacking. Given that nearly half of U.S. pregnancies are unintended (2), and early pregnancy is a critical period for fetal development, examining trends in ADHD medication prescriptions among reproductive-aged women is important to quantify the population at risk for potential exposure. CDC used the Truven Health MarketScan Commercial Database* for the period 2003-2015 to estimate the percentage of women aged 15-44 years with private employer-sponsored insurance who filled prescriptions for ADHD medications each year. The percentage of reproductive-aged women who filled at least one ADHD medication prescription increased 344% from 2003 (0.9% of women) to 2015 (4.0% of women). In 2015, the most frequently filled medications were mixed amphetamine salts, lisdexamfetamine, and methylphenidate. Prescribing ADHD medications to reproductive-aged women is increasingly common; additional research on ADHD medication safety during pregnancy is warranted to inform women and their health care providers about any potential risks associated with ADHD medication exposure before and during pregnancy. PMID- 29346343 TI - Asthma Mortality Among Persons Aged 15-64 Years, by Industry and Occupation - United States, 1999-2016. AB - In 2015, an estimated 18.4 million U.S. adults had current asthma, and 3,396 adult asthma deaths were reported (1). An estimated 11%-21% of asthma deaths might be attributable to occupational exposures (2). To describe asthma mortality among persons aged 15-64 years,* CDC analyzed multiple cause-of-death data? for 1999-2016 and industry and occupation information collected from 26 statesS for the years 1999, 2003, 2004, and 2007-2012. Proportionate mortality ratios (PMRs) for asthma among persons aged 15-64 years were calculated. During 1999-2016, a total of 14,296 (42.9%) asthma deaths occurred among males and 19,011 (57.1%) occurred among females. Based on an estimate that 11%-21% of asthma deaths might be related to occupational exposures, during this 18-year period, 1,573-3,002 asthma deaths in males and 2,091-3,992 deaths in females might have resulted from occupational exposures. Some of these deaths might have been averted by instituting measures to prevent potential workplace exposures. The annual age adjusted asthma death rate** per 1 million persons aged 15-64 years declined from 13.59 in 1999 to 9.34 in 2016 (p<0.001) among females, and from 9.14 (1999) to 7.78 (2016) (p<0.05) among males. The highest significantly elevated asthma PMRs for males were for those in the food, beverage, and tobacco products manufacturing industry (1.82) and for females were for those in the social assistance industry (1.35) and those in community and social services occupations (1.46). Elevated asthma mortality among workers in certain industries and occupations underscores the importance of optimal asthma management and identification and prevention of potential workplace exposures. PMID- 29346344 TI - Development of immune and microbial environments is independently regulated in the mammary gland. AB - Breastfeeding is important for mammals, providing immunological and microbiological advantages to neonates, together with the nutritional supply from the mother. However, the mechanisms of this functional diversity in the mammary gland remain poorly characterized. Here, we show that, similar to the gastrointestinal tract, the mammary gland develops immune and microbial environments consisting of immunoglobulin A (IgA) and the microflora, respectively, both of which are important for protecting neonates and the mother from infectious diseases. The IgA production and microflora development are coordinated in the gastrointestinal tract but seem to be independently regulated in the mammary gland. In particular, the chemokine (C-C motif) ligand 28 and poly Ig receptor, crucial molecules for the IgA production in milk, were expressed normally in germ-free lactating mice but were almost undetectable in postweaning mothers, regardless of the microflora presence. Our findings offer insights into potentially improving the quality of breastfeeding, using both immunological and microbiological approaches. PMID- 29346346 TI - Protein kinase C-delta (PKCdelta), a marker of inflammation and tuberculosis disease progression in humans, is important for optimal macrophage killing effector functions and survival in mice. AB - This corrects the article DOI: 10.1038/mi.2017.68. PMID- 29346345 TI - The cytosolic sensor STING is required for intestinal homeostasis and control of inflammation. AB - STING (stimulator of interferon genes) is a cytosolic sensor for cyclic dinucleotides and also an adaptor molecule for intracellular DNA receptors. Although STING has important functions in the host defense against pathogens and in autoimmune diseases, its physiological relevance in intestinal homeostasis is largely unknown. In this study, we show that STING-/- mice presented defective protective mechanisms of intestinal mucosa, including decreased number of goblet cells, diminished mucus production, and lower levels of secretory IgA, when compared with wild-type (WT) mice. Fecal content and microbiota DNA could activate STING, indicating a role of this molecule in gut. Microbiota composition was altered in STING-/- mice toward a more inflammatory profile, evidencing a reduction in the Allobacolum and Bifidobacterium groups along with increase in Disulfovibrio bacteria. Absence of STING lead to decrease in induced intraepithelial lymphocytes (IEL) and to increase in group 1 innate lymphoid cell (ILC1) as well as ILC3 frequencies and decrease in ILC2 in the colon. Development and function of Foxp3+ and LAP+ regulatory T cells were also compromised in STING /- mice. Moreover, these mice were highly susceptible to dextran sodium sulfate induced colitis, T-cell-induced colitis, and enteric Salmonella typhimurium infection when compared with WT animals. Therefore, our results identify an important role of STING in maintaining gut homeostasis and also a protective effect in controlling gut inflammation. PMID- 29346348 TI - Macrophages regulate lung ILC2 activation via Pla2g5-dependent mechanisms. AB - Group V phospholipase A2 (Pla2g5) is a lipid-generating enzyme necessary for macrophage effector functions in pulmonary inflammation. However, the lipid mediators involved and their cellular targets have not been identified. Mice lacking Pla2g5 showed markedly reduced lung ILC2 activation and eosinophilia following repetitive Alternaria Alternata inhalation. While Pla2g5-null mice had Wt levels of immediate IL-33 release after one Alternaria dose, they failed to upregulate IL-33 in macrophages following repeated Alternaria administration. Unexpectedly, while adoptive transfer of bone marrow-derived (BM)-macrophages restored ILC2 activation and eosinophilia in Alternaria-exposed Pla2g5-null mice, exogenous IL-33 did not. Conversely, transfers of Pla2g5-null BM-macrophages reduced inflammation in Alternaria-exposed Wt mice. Mass spectrometry analysis of free fatty acids (FFAs) demonstrated significantly reduced FFAs (including linoleic acid (LA) and oleic acid (OA)) in lung and BM-macrophages lacking Pla2g5. Exogenous administration of LA or LA+OA to Wt mice sharply potentiated IL 33-induced lung eosinophilia and ILC2 expansion in vitro and in vivo. In contrast, OA potentiated IL-33-induced inflammation and ILC2 expansion in Pla2g5 null mice, but LA was inactive both in vivo and in vitro. Notably, Pla2g5-null ILC2s showed significantly reduced expression of the FFA-receptor-1 compared to Wt ILC2s. Thus, macrophage-associated Pla2g5 contributes significantly to type-2 immunity through regulation of IL-33 induction and FFA-driven ILC2 activation. PMID- 29346347 TI - CD103+CD11b+ mucosal classical dendritic cells initiate long-term switched antibody responses to flagellin. AB - Antibody responses induced at mucosal and nonmucosal sites demonstrate a significant level of autonomy. Here, we demonstrate a key role for mucosal interferon regulatory factor-4 (IRF4)-dependent CD103+CD11b+ (DP), classical dendritic cells (cDCs) in the induction of T-dependent immunoglobulin G (IgG) and immunoglobulin A (IgA) responses in the mesenteric lymph node (MLN) following systemic immunization with soluble flagellin (sFliC). In contrast, IRF8-dependent CD103+CD11b- (SP) are not required for these responses. The lack of this response correlated with a complete absence of sFliC-specific plasma cells in the MLN, small intestinal lamina propria, and surprisingly also the bone marrow (BM). Many sFliC-specific plasma cells accumulating in the BM of immunized wild-type mice expressed alpha4beta7+, suggesting a mucosal origin. Collectively, these results suggest that mucosal DP cDC contribute to the generation of the sFliC-specific plasma cell pool in the BM and thus serve as a bridge linking the mucosal and systemic immune system. PMID- 29346349 TI - Early treatment of SIV+ macaques with an alpha4beta7 mAb alters virus distribution and preserves CD4+ T cells in later stages of infection. AB - Integrin alpha4beta7 mediates the trafficking of leukocytes, including CD4+ T cells, to lymphoid tissues in the gut. Virus mediated damage to the gut is implicated in HIV and SIV mediated chronic immune activation and leads to irreversible damage to the immune system. We employed an immuno-PET/CT imaging technique to evaluate the impact of an anti-integrin alpha4beta7 mAb alone or in combination with ART, on the distribution of both SIV infected cells and CD4+ cells in rhesus macaques infected with SIV. We determined that alpha4beta7 mAb reduced viral antigen in an array of tissues of the lung, spleen, axillary, and inguinal lymph nodes. These sites are not directly linked to alpha4beta7 mediated homing; however, the most pronounced reduction in viral load was observed in the colon. Despite this reduction, alpha4beta7 mAb treatment did not prevent an apparent depletion of CD4+ T cells in gut in the acute phase of infection that is characteristic of HIV/SIV infection. However, alpha4beta7 mAb appeared to facilitate the preservation or restoration of CD4+ T cells in gut tissues at later stages of infection. Since damage to the gut is believed to play a central role in HIV pathogenesis, these results support further evaluation of alpha4beta7 antagonists in the study and treatment of HIV disease. PMID- 29346351 TI - Adolescents and young adults with cancer in New Zealand-understudied and underserved. PMID- 29346352 TI - Compassion defined: it's time for doctors to step up. PMID- 29346350 TI - Epithelial-mesenchymal transition in Crohn's disease. AB - Crohn's disease (CD) is often accompanied by the complications of intestinal strictures and fistulas. These complications remain obstacles in CD treatment. In recent years, the importance of epithelial-mesenchymal transition in the pathogenesis of CD-associated fistulas and intestinal fibrosis has become apparent. Epithelial-mesenchymal transition refers to a dynamic change, wherein epithelial cells lose their polarity and adherence and acquire migratory function and fibroblast features. During formation of CD-associated fistulas, intestinal epithelial cells dislocate from the basement membrane and migrate to the lining of the fistula tracts, where they convert into transitional cells as a compensatory response under the insufficient wound healing condition. In CD associated intestinal fibrosis, epithelial-mesenchymal transition may serve as a source of new fibroblasts and consequently lead to overproduction of extracellular matrix. In this review, we present current knowledge of epithelial mesenchymal transition and its role in the pathogenesis of CD in order to highlight new therapy targets for the associated complications. PMID- 29346353 TI - The burden of cancer in 25-29 year olds in New Zealand: a case for a wider adolescent and young adult age range? AB - AIMS: New Zealand currently defines the adolescent and young adult (AYA) group for cancer services as young people 12-24 years of age, while other countries favour a designation of 15-29 years. This study was undertaken to compare cancer incidence and survival among 25-29 year olds to New Zealand's younger AYA population and to assess survival for our 15-29 year population against international benchmarks. METHODS: Diagnostic and demographic information for cancer registrations between 2000 and 2009 for 25-29 year olds was obtained from the New Zealand Cancer Registry. Incidence rates (IR) and five-year relative survival estimates were calculated according to AYA diagnostic group/sub-group, sex and prioritised ethnicity. RESULTS: 1,541 new primary malignant cancers were diagnosed (IR: 588 per million). Five-year relative survival was 85%, but was significantly lower for Maori and Pacific peoples (both 77%) compared to non Maori/non-Pacific peoples (88%). In the overall 15-29 year AYA cohort, disease specific outcomes for bone tumours (46%) and breast cancer (64%) were inferior to international standards. CONCLUSION: New Zealand 25 to 29 year olds are at twice the risk of developing cancer as those 15-24 years. Given that the survival disparities identified were remarkably consistent with those for younger AYA, consideration should be given widening New Zealand's AYA age range. PMID- 29346354 TI - Compassion from a palliative care perspective. AB - BACKGROUND: Compassion is a core virtue in medicine and lies at the heart of good medical care. It connects us to each other and reflects our need for relationships with others. AIM: Our aim is to explore how palliative care patients perceive, understand and experience compassion from health professionals, and to inform clinical practice. METHODS: Seven hospice managers in the North Island of New Zealand were contacted and invited to join the study. Twenty participants expressed a desire to participate and were involved in semi structured face-to-face interviews. A set of questions guided the interviewers with interviews lasting between 15-60 minutes. RESULTS: In regards to the question, what is your understanding of compassion?, four central themes emerged: connection, presence and warmth, respect and caring. When asked, what advice can you give to trainee health professionals?, participants articulated four themes: connecting with patients and talking in a way they can understand, treating the person with respect, showing interest in them and being a positive presence for them. CONCLUSIONS: Compassion was seen as a connection between the carer and the patient. Compassion is having a positive presence and warmth; an attitude of respect and caring. The main advice given by research participants to enhance compassion is for doctors and nurses to connect, to talk in a way that can be understood, and show interest and respect to patients facing the end of their lives. PMID- 29346355 TI - Increasing rates of people identifying as transgender presenting to Endocrine Services in the Wellington region. AB - AIMS: Overseas clinics specialising in management of transgender people have noted a marked increase in the numbers of people requesting therapy in the last few years. No data has been presented for New Zealand. We therefore reviewed the number of transgender people seen in the Wellington Endocrine Service to assess if the pattern was similar and assess any potential problems for service delivery. METHODS: Using hospital records, we reviewed the new appointments of people who were referred for advice on gender reassignment and seen in the Wellington Endocrine Service from 1990 to 2016. RESULTS: In total, 438 people who identified as transgender attended the clinic at least once in this period. There has been a progressive increase in number of people identifying as transgender presenting to the clinic, particularly since 2010. In addition to increasing overall numbers, there has been in particular increase in referrals for people under age 30, as well as an increasing proportion of people requesting female-to male (FtM) therapy so that it is now approaching the number of people requesting male-to-female therapy (MtF). CONCLUSION: The pattern observed is comparable to changes reported overseas. These changes have practical consequences for the delivery of both secondary and primary level healthcare, requiring an increased focus on clinical coordination between the relevant medical services and their links to the primary services sector. PMID- 29346356 TI - The effect of trampoline parks on presentations to the Christchurch Emergency Department. AB - AIMS: To analyse trampoline-related injuries suffered after the opening of two new trampoline parks in Christchurch. METHODS: Data was collected from three 90 day periods. All trampoline-related injuries were collected from electronic documentation and coding. Those injured after both arenas opened were contacted and a semi-structured interview performed. RESULTS: In the 90 days after both parks opened there were 602 claims for trampoline-related injuries with 106 hospital presentations (55% male). This was a significant increase (p<0.01) from one year earlier (333 claims, 37 hospital presentations) and the 90 days prior to their opening (201 claims, 15 hospital presentations). Most injuries affected an older group of children, aged between 10-14 years (26%, n=28), compared to the other two periods (p<0.01). There was also a greater proportion of lower-limb injuries (52%, n=55) compared to the other two periods (p<0.01). Thirty-six required hospital admission, with 29 operations and an average length of stay of 2.11 days. One trampoline park allowed two or more people to use the same trampoline at the same time, and had over twice as many presentations (33%, n=35) than the other trampoline park (14%, n=15). CONCLUSIONS: Christchurch saw a significant increase in trampoline-related injuries after the opening of two new parks. These injuries involved an older group of children, affected predominantly the lower limbs and were more severe than those reported from the use of domestic trampolines. Consistent with past research, the trampoline park allowing multiple users had a higher proportion of presentations and more injuries requiring operative intervention. PMID- 29346357 TI - Type of cows' milk consumption and relationship to health predictors in New Zealand preschool children. AB - AIMS: New Zealand dietary guidelines recommend children from two years of age consume low- or reduced-fat milk. We aimed to investigate the predictors of type of milk consumption in preschool children. METHODS: Data were drawn from a cross sectional study which enrolled preschool children (2-<5 years, n=1,329) from throughout New Zealand. RESULTS: Cows' milk was consumed regularly by 88% of children. Of these, 26% consumed plain low- or reduced-fat milk, while 74% consumed full-fat milk. The adjusted odds of consuming plain low- or reduced-fat milk were increased in older children: three-year old (OR=1.80, 95% CI 1.29 2.50); four-year old (OR=1.93, 95% CI 1.38-2.72) versus two-year old children, and were decreased in Maori (OR=0.56, 95% CI 0.36-0.88) and Pacific children (OR=0.32, 95% CI 0.12-0.86) compared with New Zealand European children. Approximately 18% of children were overweight/obese. The odds (adjusted for socio demographic characteristics) of consuming plain low- or reduced-fat milk were increased in overweight children (OR=1.74, 95% CI 1.20-2.54) than normal weight children. CONCLUSIONS: The type of milk consumed by preschool children varies with child demographics and anthropometry. Further research is warranted to investigate caregivers/parents' knowledge about dietary guidelines and to determine the causal relationship between obesity and milk type consumption. The findings of the current study may have important implications for developing and shaping interventions and in helping shape public health policy and practice to promote cows' milk consumption in preschool children. PMID- 29346359 TI - A systematic review of leadership training for medical students. AB - BACKGROUND: Leadership is increasingly being recognised as an essential requirement for doctors. Many medical schools are in the process of developing formal leadership training programmes, but it remains to be elucidated what characteristics make such programmes effective, and to what extent current programmes are effective, beyond merely positive learner reactions. This review's objective was to investigate the effectiveness of undergraduate medical leadership curricula and to explore common features of effective curricula. METHODS: A systematic literature search was conducted. Articles describing and evaluating undergraduate medical leadership curricula were included. Outcomes were stratified and analysed according to a modified Kirkpatrick's model for evaluating educational outcomes. RESULTS: Eleven studies met inclusion criteria. Leadership curricula evaluated were markedly heterogeneous in their duration and composition. The majority of studies utilised pre- and post- intervention questionnaires for evaluation. Two studies described randomised controlled trials with objective measures. Outcomes were broadly positive. Only one study reported neutral outcomes. CONCLUSIONS: A wide range of leadership curricula have shown subjective effectiveness, including short interventions. There is limited objective evidence however, and few studies have measured effectiveness at the system and patient levels. Further research is needed investigating objective and downstream outcomes, and use of standard frameworks for evaluation will facilitate effective comparison of initiatives. PMID- 29346358 TI - Rates of unsuspected thyroid cancer in multinodular thyroid disease. AB - BACKGROUND: Previously the risk of concomitant thyroid cancer in multinodular goitre (MNG) has been reported as approximately 4%. Cancer risk in toxic MNG was often considered lower than for non-toxic MNG, due to a possible protective effect of TSH suppression. However, recent American data suggest an approximately 18% risk of occult malignancy in both toxic and non-toxic MNG. AIMS: To assess malignancy risk in a New Zealand population undergoing thyroidectomy for MNG. METHODS: Single-centre study of patients undergoing thyroidectomy for MNG from 1 December 2006 to 30 November 2016. RESULTS: Six hundred and two patients underwent surgery for MNG (448 non-toxic and 154 toxic). Of these, 95/602 (16%) had thyroid cancer. After excluding patients operated for preoperative suspicion for cancer, 30/401 (8%) patients with non-toxic MNG and 15/151 (10%) with toxic MNG had unsuspected or occult thyroid cancer (p=0.358). Patients with toxic MNG were less likely to undergo preoperative fine needle aspiration than those with non-toxic MNG (34% vs 52%, respectively p=0.0001). Two-thirds of unsuspected thyroid cancers were incidental micropapillary carcinomas and unlikely to alter survival irrespective of therapy. CONCLUSION: Malignancy rates in MNG are higher than historically reported, although most unsuspected cancers are unlikely to alter mortality even if diagnosis is delayed. PMID- 29346360 TI - Evaluation of the Report on Euthanasia for the New Zealand Medical Association by Grant Gillett. PMID- 29346361 TI - Publication and authorship challenges experienced by medical students involved in biomedical research. PMID- 29346362 TI - Research opportunities for medical students: time flies when you're having fun. PMID- 29346363 TI - Euthanasia and abortion. PMID- 29346365 TI - The ISCB Student Council Internship Program: Expanding computational biology capacity worldwide. AB - Education and training are two essential ingredients for a successful career. On one hand, universities provide students a curriculum for specializing in one's field of study, and on the other, internships complement coursework and provide invaluable training experience for a fruitful career. Consequently, undergraduates and graduates are encouraged to undertake an internship during the course of their degree. The opportunity to explore one's research interests in the early stages of their education is important for students because it improves their skill set and gives their career a boost. In the long term, this helps to close the gap between skills and employability among students across the globe and balance the research capacity in the field of computational biology. However, training opportunities are often scarce for computational biology students, particularly for those who reside in less-privileged regions. Aimed at helping students develop research and academic skills in computational biology and alleviating the divide across countries, the Student Council of the International Society for Computational Biology introduced its Internship Program in 2009. The Internship Program is committed to providing access to computational biology training, especially for students from developing regions, and improving competencies in the field. Here, we present how the Internship Program works and the impact of the internship opportunities so far, along with the challenges associated with this program. PMID- 29346364 TI - Mutations in Caenorhabditis elegans neuroligin-like glit-1, the apoptosis pathway and the calcium chaperone crt-1 increase dopaminergic neurodegeneration after 6 OHDA treatment. AB - The loss of dopaminergic neurons is a hallmark of Parkinson's disease, the aetiology of which is associated with increased levels of oxidative stress. We used C. elegans to screen for genes that protect dopaminergic neurons against oxidative stress and isolated glit-1 (gliotactin (Drosophila neuroligin-like) homologue). Loss of the C. elegans neuroligin-like glit-1 causes increased dopaminergic neurodegeneration after treatment with 6-hydroxydopamine (6-OHDA), an oxidative-stress inducing drug that is specifically taken up into dopaminergic neurons. Furthermore, glit-1 mutants exhibit increased sensitivity to oxidative stress induced by H2O2 and paraquat. We provide evidence that GLIT-1 acts in the same genetic pathway as the previously identified tetraspanin TSP-17. After exposure to 6-OHDA and paraquat, glit-1 and tsp-17 mutants show almost identical, non-additive hypersensitivity phenotypes and exhibit highly increased induction of oxidative stress reporters. TSP-17 and GLIT-1 are both expressed in dopaminergic neurons. In addition, the neuroligin-like GLIT-1 is expressed in pharynx, intestine and several unidentified cells in the head. GLIT-1 is homologous, but not orthologous to neuroligins, transmembrane proteins required for the function of synapses. The Drosophila GLIT-1 homologue Gliotactin in contrast is required for epithelial junction formation. We report that GLIT-1 likely acts in multiple tissues to protect against 6-OHDA, and that the epithelial barrier of C. elegans glit-1 mutants does not appear to be compromised. We further describe that hyperactivation of the SKN-1 oxidative stress response pathway alleviates 6-OHDA-induced neurodegeneration. In addition, we find that mutations in the canonical apoptosis pathway and the calcium chaperone crt-1 cause increased 6-OHDA-induced dopaminergic neuron loss. In summary, we report that the neuroligin-like GLIT-1, the canonical apoptosis pathway and the calreticulin CRT-1 are required to prevent 6-OHDA-induced dopaminergic neurodegeneration. PMID- 29346366 TI - Testing for soil-transmitted helminth transmission elimination: Analysing the impact of the sensitivity of different diagnostic tools. AB - In recent years, an increased focus has been placed upon the possibility of the elimination of soil-transmitted helminth (STH) transmission using various interventions including mass drug administration. The primary diagnostic tool recommended by the WHO is the detection of STH eggs in stool using the Kato-Katz (KK) method. However, detecting infected individuals using this method becomes increasingly difficult as the intensity of infection decreases. Newer techniques, such as qPCR, have been shown to have greater sensitivity than KK, especially at low prevalence. However, the impact of using qPCR on elimination thresholds is yet to be investigated. In this paper, we aim to quantify how the sensitivity of these two diagnostic tools affects the optimal prevalence threshold at which to declare the interruption of transmission with a defined level of confidence. A stochastic, individual-based STH transmission model was used in this study to simulate the transmission dynamics of Ascaris and hookworm. Data from a Kenyan deworming study were used to parameterize the diagnostic model which was based on egg detection probabilities. The positive and negative predictive values (PPV and NPV) were calculated to assess the quality of any given threshold, with the optimal threshold value taken to be that at which both were maximised. The threshold prevalence of infection values for declaring elimination of Ascaris transmission were 6% and 12% for KK and qPCR respectively. For hookworm, these threshold values are lower at 0.5% and 2% respectively. Diagnostic tests with greater sensitivity are becoming increasingly important as we approach the elimination of STH transmission in some regions of the world. For declaring the elimination of transmission, using qPCR to diagnose STH infection results in the definition of a higher prevalence, than when KK is used. PMID- 29346367 TI - Assessment of serum pharmacokinetics and urinary excretion of albendazole and its metabolites in human volunteers. AB - BACKGROUND: Soil Transmitted Helminth (STH) infections negatively impact physical and mental development in human populations. Current WHO guidelines recommend morbidity control of these infections through mass drug administration (MDA) using albendazole (ABZ) or mebendazole. Despite major reductions in STH associated morbidity globally, not all programs have demonstrated the expected impact on prevalence of parasite infections. These therapeutic failures may be related to poor programmatic coverage, suboptimal adherence or the exposure of parasites to sub-therapeutic drug concentrations. As part of the DeWorm3 project, we sought to characterize the serum disposition kinetics and pattern of urinary excretion of ABZ and its main metabolites ABZ sulphoxide (ABZSO) and ABZ sulphone (ABZSO2) in humans, and the assessment of the duration and optimal time point where ABZ and/or its metabolites can be measured in urine as an indirect assessment of an individual's adherence to treatment. METHODOLOGY/PRINCIPAL FINDINGS: Consecutive venous blood and urine samples were collected from eight (8) human volunteers up to 72 h post-ABZ oral administration. ABZ/metabolites were quantified by HPLC. The ABZSO metabolite was the main analyte recovered both in serum and urine. ABZSO Cmax in serum was 1.20 +/- 0.44 MUg/mL, reached at 4.75 h post-treatment. In urine, ABZSO Cmax was 3.24 +/- 1.51 MUg/mL reached at 6.50 h post-ABZ administration. CONCLUSION/SIGNIFICANCE: Pharmacokinetic data obtained for ABZ metabolites in serum and urine, including the recovery of the ABZ sulphoxide derivative up to 72 h in both matrixes and the recovery of the amino ABZ sulphone metabolite in urine samples, are suggesting the possibility of developing a urine based method to assess compliance to ABZ treatment. Such an assay may be useful to optimize ABZ use in human patients. TRIAL REGISTRATION: ClinicalTrials.gov NCT03192449. PMID- 29346368 TI - Mechanical feedback coordinates cell wall expansion and assembly in yeast mating morphogenesis. AB - The shaping of individual cells requires a tight coordination of cell mechanics and growth. However, it is unclear how information about the mechanical state of the wall is relayed to the molecular processes building it, thereby enabling the coordination of cell wall expansion and assembly during morphogenesis. Combining theoretical and experimental approaches, we show that a mechanical feedback coordinating cell wall assembly and expansion is essential to sustain mating projection growth in budding yeast (Saccharomyces cerevisiae). Our theoretical results indicate that the mechanical feedback provided by the Cell Wall Integrity pathway, with cell wall stress sensors Wsc1 and Mid2 increasingly activating membrane-localized cell wall synthases Fks1/2 upon faster cell wall expansion, stabilizes mating projection growth without affecting cell shape. Experimental perturbation of the osmotic pressure and cell wall mechanics, as well as compromising the mechanical feedback through genetic deletion of the stress sensors, leads to cellular phenotypes that support the theoretical predictions. Our results indicate that while the existence of mechanical feedback is essential to stabilize mating projection growth, the shape and size of the cell are insensitive to the feedback. PMID- 29346369 TI - The rise of neglected tropical diseases in the "new Texas". AB - Within the last five years, the State of Texas has experienced either transmission or outbreaks of Ebola, chikungunya, West Nile, and Zika virus infections. Autochthonous transmission of neglected parasitic and bacterial diseases has also become increasingly reported. The rise of such emerging and neglected tropical diseases (NTDs) has not occurred by accident but instead reflects rapidly evolving changes and shifts in a "new" Texas beset by modern and globalizing forces that include rapid expansions in population together with urbanization and human migrations, altered transportation patterns, climate change, steeply declining vaccination rates, and a new paradigm of poverty known as "blue marble health." Summarized here are the major NTDs now affecting Texas. In addition to the vector-borne viral diseases highlighted above, there also is a high level of parasitic infections, including Chagas disease, trichomoniasis, and possibly leishmaniasis and toxocariasis, as well as typhus-group rickettsiosis, a vector-borne bacterial infection. I also highlight some of the key shifts in emerging and neglected disease patterns, partly due to an altered and evolving economic and ecological landscape in the new Texas, and provide some preliminary disease burden estimates for the major prevalent and incident NTDs. PMID- 29346370 TI - Structure, function, and control of the human musculoskeletal network. AB - The human body is a complex organism, the gross mechanical properties of which are enabled by an interconnected musculoskeletal network controlled by the nervous system. The nature of musculoskeletal interconnection facilitates stability, voluntary movement, and robustness to injury. However, a fundamental understanding of this network and its control by neural systems has remained elusive. Here we address this gap in knowledge by utilizing medical databases and mathematical modeling to reveal the organizational structure, predicted function, and neural control of the musculoskeletal system. We constructed a highly simplified whole-body musculoskeletal network in which single muscles connect to multiple bones via both origin and insertion points. We demonstrated that, using this simplified model, a muscle's role in this network could offer a theoretical prediction of the susceptibility of surrounding components to secondary injury. Finally, we illustrated that sets of muscles cluster into network communities that mimic the organization of control modules in primary motor cortex. This novel formalism for describing interactions between the muscular and skeletal systems serves as a foundation to develop and test therapeutic responses to injury, inspiring future advances in clinical treatments. PMID- 29346371 TI - Identification of novel leishmanicidal molecules by virtual and biochemical screenings targeting Leishmania eukaryotic translation initiation factor 4A. AB - Leishmaniases are neglected parasitic diseases in spite of the major burden they inflict on public health. The identification of novel drugs and targets constitutes a research priority. For that purpose we used Leishmania infantum initiation factor 4A (LieIF), an essential translation initiation factor that belongs to the DEAD-box proteins family, as a potential drug target. We modeled its structure and identified two potential binding sites. A virtual screening of a diverse chemical library was performed for both sites. The results were analyzed with an in-house version of the Self-Organizing Maps algorithm combined with multiple filters, which led to the selection of 305 molecules. Effects of these molecules on the ATPase activity of LieIF permitted the identification of a promising hit (208) having a half maximal inhibitory concentration (IC50) of 150 +/- 15 MUM for 1 MUM of protein. Ten chemical analogues of compound 208 were identified and two additional inhibitors were selected (20 and 48). These compounds inhibited the mammalian eIF4I with IC50 values within the same range. All three hits affected the viability of the extra-cellular form of L. infantum parasites with IC50 values at low micromolar concentrations. These molecules showed non-significant toxicity toward THP-1 macrophages. Furthermore, their anti leishmanial activity was validated with experimental assays on L. infantum intramacrophage amastigotes showing IC50 values lower than 4.2 MUM. Selected compounds exhibited selectivity indexes between 19 to 38, which reflects their potential as promising anti-Leishmania molecules. PMID- 29346372 TI - Ceramides in tracheal aspirates of preterm infants: Marker for bronchopulmonary dysplasia. AB - BACKGROUND: In an experimental mouse model we showed that ceramides play a role in the pathogenesis of bronchopulmonary dysplasia (BPD) and are a potential target for therapeutic intervention. We investigated whether ceramides are detectable in tracheal aspirates (TAs) of preterm infants and differ between infants with or without BPD. METHODS: Infants born <= 32 weeks of gestational age in need of mechanical ventilation in the first week of life were included. TAs were obtained directly after intubation and at day 1, 3, 5, 7, and 14. Ceramide concentrations were measured by tandem mass spectrometry. At 36 weeks postmenstrual age BPD was defined as having had >= 28 days supplemental oxygen. RESULTS: 122 infants were included, of which 14 died and 41 developed BPD. All infants showed an increase in ceramides after the first day of intubation. The ceramide profile differed significantly between preterm infants who did and did not develop BPD. However, the ceramide profile had no additional predictive value for BPD development over GA at birth, birth weight and total days of mechanical ventilation. CONCLUSIONS: Ceramides are measurable in TAs of preterm born infants and may be an early marker for BPD development. PMID- 29346373 TI - Reconciling Pasteur and Darwin to control infectious diseases. AB - The continual emergence of new pathogens and the increased spread of antibiotic resistance in bacterial populations remind us that microbes are living entities that evolve at rates that impact public health interventions. Following the historical thread of the works of Pasteur and Darwin shows how reconciling clinical microbiology, ecology, and evolution can be instrumental to understanding pathology, developing new therapies, and prolonging the efficiency of existing ones. PMID- 29346374 TI - Epidemiological investigation into the prevalence of abnormal inter-arm blood pressure differences among different ethnicities in Xinjiang, China. AB - OBJECTIVES: The prevalence of and risk factors for IAD among different ethnicity groups was unknown. Our aim was to investigate the prevalence of and risk factors for IAD among Han, Uygur and Kazakh ethnicities in Xinjiang. China. METHODS: In total, 14,618 adult participants (7,799 males and 6,819 females) were recruited from the Cardiovascular Risk Survey. A 4-stage stratified cluster random sampling method was used. The participants' personal information and medical history were assessed by questionnaire. IAD was diagnosed by a noninvasive arteriosclerosis analyzer. RESULTS: The prevalence of abnormal IAD among the general population was 14.3%, with 12.5% in the Han, 14.9% in the Uygur, and 16.4% in the Kazakh populations. The prevalence of abnormal IAD among the hypertensive population was 19.4%, with 17.0% in the Han, 18.1% in the Uygur, and 22.7% in the Kazakh populations. The prevalence of abnormal IAD increased with age (all P < 0.01) but was not significantly different between the genders (all P> 0.05). Multivariate logistic regression analysis showed that age more than 45 years, obesity and hypertriglyceridemia were significantly associated with a higher prevalence of IAD. There were different risk factors for abnormal IAD in different ethnicities. Middle or old age, obesity, ABI and diabetes mellitus were risk factors for the Han population, smoking was a risk factor in the Uygur population, and obesity and PAD were risk factors in the Kazakh population. CONCLUSION: The prevalence of abnormal IAD in the Kazakh participants was higher than that in the Han and Uygur populations among both the general population and the hypertensive population in Xinjiang, China. The main risk factors of IAD were age, obesity, and triglyceride levels. Different ethnicities had different kinds of risk factors for IAD. PMID- 29346375 TI - How do we reach the girls and women who are the hardest to reach? Inequitable opportunities in reproductive and maternal health care services in armed conflict and forced displacement settings in Colombia. AB - OBJECTIVES: This paper assesses inequalities in access to reproductive and maternal health services among females affected by forced displacement and sexual and gender-based violence in conflict settings in Colombia. This was accomplished through the following approaches: first, we assessed the gaps and gradients in three selected reproductive and maternal health care services. Second, we analyzed the patterns of inequalities in reproductive and maternal health care services and changes over time. And finally, we identified challenges and strategies for reaching girls and women who are the hardest to reach in conflict settings, in order to accelerate progress towards universal health coverage and to contribute to meeting the Sustainable Development Goals of good health and well-being and gender equality by 2030. METHODS: Three types of data were required: data about health outcomes (relating to rates of females affected by conflict), information about reproductive and maternal health care services to provide a social dimension to unmask inequalities (unmet needs in family planning, antenatal care and skilled births attendance); and data on the female population. Data sources used include the National Information System for Social Protection, the National Registry of Victims, the National Administrative Department of Statistics, and Demographic Health Survey at three specific time points: 2005, 2010 and 2015. We estimated the slope index of inequality to express absolute inequality (gaps) and the concentration index to expresses relative inequality (gradients), and to understand whether inequality was eliminated over time. RESULTS: Our findings show that even though absolute health care service-related inequalities dropped over time, relative inequalities worsened or remain unchanged. All summary measures still indicated the existence of inequalities as well as common patterns. Our findings suggest that there is a pattern of marginal exclusion and incremental patterns of inequality in the reproductive and maternal health care service provided to female affected by armed conflict. CONCLUSIONS: Overall, the effects of conflict continue to threaten reproductive and maternal health in Colombia, impeding progress towards the realization of universal health care (UHC) and reinforcing already-existing inequities. Key messages and steps forward include the need to understand the two distinct patterns of inequalities identified in this study in order to prompt improved general policy responses. Addressing unmet needs in reproductive and maternal health requires supporting gender equality and prioritizing the girls and women in regions with the highest rates of victims of armed conflict, with the objective of leaving no girl or woman behind. This analysis represents the first attempt to analyze coverage-related inequality in reproductive and maternal health care services for female affected by armed conflict in Colombia. As the World Health Organization and global health systems leaders call for more inclusive engagement, this approach may serve as the key to shaping people centred health systems. In this particular case, health care facilities must be located in close proximity to girls and women in conflict and post-conflict settings in order to deliver essential reproductive and maternal health care services. Finally, reducing inequalities in opportunities would not only promote equity, but also drive sustainable development. PMID- 29346376 TI - Evaluating the sustainability, scalability, and replicability of an STH transmission interruption intervention: The DeWorm3 implementation science protocol. AB - Hybrid trials that include both clinical and implementation science outcomes are increasingly relevant for public health researchers that aim to rapidly translate study findings into evidence-based practice. The DeWorm3 Project is a series of hybrid trials testing the feasibility of interrupting the transmission of soil transmitted helminths (STH), while conducting implementation science research that contextualizes clinical research findings and provides guidance on opportunities to optimize delivery of STH interventions. The purpose of DeWorm3 implementation science studies is to ensure rapid and efficient translation of evidence into practice. DeWorm3 will use stakeholder mapping to identify individuals who influence or are influenced by school-based or community-wide mass drug administration (MDA) for STH and to evaluate network dynamics that may affect study outcomes and future policy development. Individual interviews and focus groups will generate the qualitative data needed to identify factors that shape, contextualize, and explain DeWorm3 trial outputs and outcomes. Structural readiness surveys will be used to evaluate the factors that drive health system readiness to implement novel interventions, such as community-wide MDA for STH, in order to target change management activities and identify opportunities for sustaining or scaling the intervention. Process mapping will be used to understand what aspects of the intervention are adaptable across heterogeneous implementation settings and to identify contextually-relevant modifiable bottlenecks that may be addressed to improve the intervention delivery process and to achieve intervention outputs. Lastly, intervention costs and incremental cost-effectiveness will be evaluated to compare the efficiency of community-wide MDA to standard-of-care targeted MDA both over the duration of the trial and over a longer elimination time horizon. PMID- 29346377 TI - Assessing the feasibility of interrupting the transmission of soil-transmitted helminths through mass drug administration: The DeWorm3 cluster randomized trial protocol. AB - : Current control strategies for soil-transmitted helminths (STH) emphasize morbidity control through mass drug administration (MDA) targeting preschool- and school-age children, women of childbearing age and adults in certain high-risk occupations such as agricultural laborers or miners. This strategy is effective at reducing morbidity in those treated but, without massive economic development, it is unlikely it will interrupt transmission. MDA will therefore need to continue indefinitely to maintain benefit. Mathematical models suggest that transmission interruption may be achievable through MDA alone, provided that all age groups are targeted with high coverage. The DeWorm3 Project will test the feasibility of interrupting STH transmission using biannual MDA targeting all age groups. Study sites (population >=80,000) have been identified in Benin, Malawi and India. Each site will be divided into 40 clusters, to be randomized 1:1 to three years of twice-annual community-wide MDA or standard-of-care MDA, typically annual school-based deworming. Community-wide MDA will be delivered door-to-door, while standard-of-care MDA will be delivered according to national guidelines. The primary outcome is transmission interruption of the STH species present at each site, defined as weighted cluster-level prevalence <=2% by quantitative polymerase chain reaction (qPCR), 24 months after the final round of MDA. Secondary outcomes include the endline prevalence of STH, overall and by species, and the endline prevalence of STH among children under five as an indicator of incident infections. Secondary analyses will identify cluster-level factors associated with transmission interruption. Prevalence will be assessed using qPCR of stool samples collected from a random sample of cluster residents at baseline, six months after the final round of MDA and 24 months post-MDA. A smaller number of individuals in each cluster will be followed with annual sampling to monitor trends in prevalence and reinfection throughout the trial. TRIAL REGISTRATION: ClinicalTrials.gov NCT03014167. PMID- 29346378 TI - Evaluating the impact of a 'virtual clinic' on patient experience, personal and provider costs of care in urinary incontinence: A randomised controlled trial. AB - OBJECTIVE: To evaluate the impact of using a 'virtual clinic' on patient experience and cost in the care of women with urinary incontinence. MATERIALS AND METHODS: Women, aged > 18 years referred to a urogynaecology unit were randomised to either (1) A Standard Clinic or (2) A Virtual Clinic. Both groups completed a validated, web-based interactive, patient-reported outome measure (ePAQ-Pelvic Floor), in advance of their appointment followed by either a telephone consultation (Virtual Clinic) or face-to-face consultation (Standard Care). The primary outcome was the mean 'short-term outcome scale' score on the Patient Experience Questionnaire (PEQ). Secondary Outcome Measures included the other domains of the PEQ (Communications, Emotions and Barriers), Client Satisfaction Questionnaire (CSQ), Short-Form 12 (SF-12), personal, societal and NHS costs. RESULTS: 195 women were randomised: 98 received the intervention and 97 received standard care. The primary outcome showed a non-significant difference between the two study arms. No significant differences were also observed on the CSQ and SF-12. However, the intervention group showed significantly higher PEQ domain scores for Communications, Emotions and Barriers (including following adjustment for age and parity). Whilst standard care was overall more cost-effective, this was minimal (L38.04). The virtual clinic also significantly reduced consultation time (10.94 minutes, compared with a mean duration of 25.9 minutes respectively) and consultation costs compared to usual care (L31.75 versus L72.17 respectively), thus presenting potential cost-savings in out-patient management. CONCLUSIONS: The virtual clinical had no impact on the short-term dimension of the PEQ and overall was not as cost-effective as standard care, due to greater clinic re-attendances in this group. In the virtual clinic group, consultation times were briefer, communication experience was enhanced and personal costs lower. For medical conditions of a sensitive or intimate nature, a virtual clinic has potential to support patients to communicate with health professionals about their condition. PMID- 29346380 TI - Rapidly progressive dementia: An eight year (2008-2016) retrospective study. AB - BACKGROUND AND PURPOSE: Rapidly progressive dementia (RPD) is an emergency in cognitive neurology, defined as cognitive impairment affecting the daily living activities developed over less than 1 year. This study investigated the profile of patients with rapidly progressive dementia at first presentation. METHODS: Retrospective case analysis was done in 187 patients with rapidly progressive dementia who presented to the Postgraduate Institute of Medical Education and Research, Chandigarh, India from January 2008 to August 2016. Patients were divided into three groups: (1) Reversible (treatable) secondary dementia group, (2) Prion dementia group (sporadic Creutzfeldt-Jakob disease), (3) Non-prion Neurodegenerative and vascular dementias (primary neurodegenerative and vascular dementia). Cases presenting with delirium secondary to metabolic, drug induced or septic causes and those with signs of meningitis were excluded. RESULTS: Secondary reversible causes formed the most common cause for RPD with immune mediated encephalitides, neoplastic and infectious disorders as the leading causes. The patients in this series had an younger onset of RPD. Infections presenting with RPD accounted for the most common cause in our series (39%) with SSPE (41%) as the leading cause followed by neurosyphilis (17.9%) and progressive multifocal leukoencephalopathy (15.3%). Immune mediated dementias formed the second most common (18.1%) etiologic cause for RPD. The neurodegenerative dementias were third common cause for RPD in our series. Neoplastic disorders and immune mediated presented early (< 6 months) while neurodegenerative disorders presented later (> 6 months). CONCLUSIONS: Rapidly progressive dementia is an emergency in cognitive neurology with potentially treatable or reversible causes that should be sought for diligently. PMID- 29346379 TI - A putative lateral flagella of the cystic fibrosis pathogen Burkholderia dolosa regulates swimming motility and host cytokine production. AB - Burkholderia dolosa caused an outbreak in the cystic fibrosis clinic at Boston Children's Hospital and was associated with high mortality in these patients. This species is part of a larger complex of opportunistic pathogens known as the Burkholderia cepacia complex (Bcc). Compared to other species in the Bcc, B. dolosa is highly transmissible; thus understanding its virulence mechanisms is important for preventing future outbreaks. The genome of one of the outbreak strains, AU0158, revealed a homolog of the lafA gene encoding a putative lateral flagellin, which, in other non-Bcc species, is used for movement on solid surfaces, attachment to host cells, or movement inside host cells. Here, we analyzed the conservation of the lafA gene and protein sequences, which are distinct from those of the polar flagella, and found lafA homologs to be present in numerous beta-proteobacteria but notably absent from most other Bcc species. A lafA deletion mutant in B. dolosa showed a greater swimming motility than wild type due to an increase in the number of polar flagella, but did not appear to contribute to biofilm formation, host cell invasion, or murine lung colonization or persistence over time. However, the lafA gene was important for cytokine production in human peripheral blood mononuclear cells, suggesting it may have a role in recognition by the human immune response. PMID- 29346381 TI - Control of recollection by slow gamma dominating mid-frequency gamma in hippocampus CA1. AB - Behavior is used to assess memory and cognitive deficits in animals like Fmr1 null mice that model Fragile X Syndrome, but behavior is a proxy for unknown neural events that define cognitive variables like recollection. We identified an electrophysiological signature of recollection in mouse dorsal Cornu Ammonis 1 (CA1) hippocampus. During a shocked-place avoidance task, slow gamma (SG) (30-50 Hz) dominates mid-frequency gamma (MG) (70-90 Hz) oscillations 2-3 s before successful avoidance, but not failures. Wild-type (WT) but not Fmr1-null mice rapidly adapt to relocating the shock; concurrently, SG/MG maxima (SGdom) decrease in WT but not in cognitively inflexible Fmr1-null mice. During SGdom, putative pyramidal cell ensembles represent distant locations; during place avoidance, these are avoided places. During shock relocation, WT ensembles represent distant locations near the currently correct shock zone, but Fmr1-null ensembles represent the formerly correct zone. These findings indicate that recollection occurs when CA1 SG dominates MG and that accurate recollection of inappropriate memories explains Fmr1-null cognitive inflexibility. PMID- 29346382 TI - 6-OHDA-induced dopaminergic neurodegeneration in Caenorhabditis elegans is promoted by the engulfment pathway and inhibited by the transthyretin-related protein TTR-33. AB - Oxidative stress is linked to many pathological conditions including the loss of dopaminergic neurons in Parkinson's disease. The vast majority of disease cases appear to be caused by a combination of genetic mutations and environmental factors. We screened for genes protecting Caenorhabditis elegans dopaminergic neurons from oxidative stress induced by the neurotoxin 6-hydroxydopamine (6 OHDA) and identified the transthyretin-related gene ttr-33. The only described C. elegans transthyretin-related protein to date, TTR-52, has been shown to mediate corpse engulfment as well as axon repair. We demonstrate that TTR-52 and TTR-33 have distinct roles. TTR-33 is likely produced in the posterior arcade cells in the head of C. elegans larvae and is predicted to be a secreted protein. TTR-33 protects C. elegans from oxidative stress induced by paraquat or H2O2 at an organismal level. The increased oxidative stress sensitivity of ttr-33 mutants is alleviated by mutations affecting the KGB-1 MAPK kinase pathway, whereas it is enhanced by mutation of the JNK-1 MAPK kinase. Finally, we provide genetic evidence that the C. elegans cell corpse engulfment pathway is required for the degeneration of dopaminergic neurons after exposure to 6-OHDA. In summary, we describe a new neuroprotective mechanism and demonstrate that TTR-33 normally functions to protect dopaminergic neurons from oxidative stress-induced degeneration, potentially by acting as a secreted sensor or scavenger of oxidative stress. PMID- 29346383 TI - Seasonally timed treatment programs for Ascaris lumbricoides to increase impact An investigation using mathematical models. AB - There is clear empirical evidence that environmental conditions can influence Ascaris spp. free-living stage development and host reinfection, but the impact of these differences on human infections, and interventions to control them, is variable. A new model framework reflecting four key stages of the A. lumbricoides life cycle, incorporating the effects of rainfall and temperature, is used to describe the level of infection in the human population alongside the environmental egg dynamics. Using data from South Korea and Nigeria, we conclude that settings with extreme fluctuations in rainfall or temperature could exhibit strong seasonal transmission patterns that may be partially masked by the longevity of A. lumbricoides infections in hosts; we go on to demonstrate how seasonally timed mass drug administration (MDA) could impact the outcomes of control strategies. For the South Korean setting the results predict a comparative decrease of 74.5% in mean worm days (the number of days the average individual spend infected with worms across a 12 month period) between the best and worst MDA timings after four years of annual treatment. The model found no significant seasonal effect on MDA in the Nigerian setting due to a narrower annual temperature range and no rainfall dependence. Our results suggest that seasonal variation in egg survival and maturation could be exploited to maximise the impact of MDA in certain settings. PMID- 29346384 TI - Histoplasmosis in Africa: An emerging or a neglected disease? AB - Histoplasmosis in Africa has markedly increased since the advent of the HIV/AIDS epidemic but is under-recognised. Pulmonary histoplasmosis may be misdiagnosed as tuberculosis (TB). In the last six decades (1952-2017), 470 cases of histoplasmosis have been reported. HIV-infected patients accounted for 38% (178) of the cases. West Africa had the highest number of recorded cases with 179; the majority (162 cases) were caused by Histoplasma capsulatum var. dubuosii (Hcd). From the Southern African region, 150 cases have been reported, and the majority (119) were caused by H. capsulatum var. capsulatum (Hcc). There have been 12 histoplasmin skin test surveys with rates of 0% to 35% positivity. Most cases of Hcd presented as localised lesions in immunocompetent persons; however, it was disseminated in AIDS patients. Rapid diagnosis of histoplasmosis in Africa is only currently possible using microscopy; antigen testing and PCR are not available in most of Africa. Treatment requires amphotericin B and itraconazole, both of which are not licensed or available in several parts of Africa. PMID- 29346385 TI - Combined effectiveness of anthelmintic chemotherapy and WASH among HIV-infected adults. AB - INTRODUCTION: Current global helminth control guidelines focus on regular deworming of targeted populations for morbidity control. However, water, sanitation, and hygiene (WASH) interventions may also be important for reducing helminth transmission. We evaluated the impact of different potential helminth protective packages on infection prevalence, including repeated treatment with albendazole and praziquantel with and without WASH access. METHODOLOGY/PRINCIPAL FINDINGS: We conducted a cohort study nested within a randomized trial of empiric deworming of HIV-infected adults in Kenya. Helminth infections and infection intensity were diagnosed using semi-quantitative real-time PCR. We conducted a manual forward stepwise model building approach to identify if there are packages of interventions that may be protective against an STH infection of any species (combined outcome) and each helminth species individually. We conducted secondary analyses using the same approach only amongst individuals with no anthelmintis exposure. We used interaction terms to test for potential intervention synergy. Approximately 22% of the 701 stool samples provided were helminth-infected, most of which were of low to moderate intensity. The odds of infection with any STH species were lower for individuals who were treated with albendazole (aOR:0.11, 95%CI: 0.05, 0.20, p<0.001), adjusting for age and sex. Although most WASH conditions demonstrated minimal additional benefit in reducing the probability of infection with any STH species, access to safe flooring did appear to offer some additional protection (aOR:0.34, 95%CI: 0.20, 0.56, p<0.001). For schistosomiasis, only treatment with praziquantel was protective (aOR:0.30 95%CI: 0.14, 0.60, p = 0.001). Amongst individuals who were not treated with albendazole or praziquantel, the most protective intervention package to reduce probability of STH infections included safe flooring (aOR:0.34, 95%CI: 0.20, 0.59, p<0.001) and latrine access (aOR:0.59, 95%CI: 0.35, 0.99, p = 0.05). Across all species, there was no evidence of synergy or antagonism between anthelmintic chemotherapy with albendazole or praziquantel and WASH resources. CONCLUSIONS/SIGNIFICANCE: Deworming is effective in reducing the probability of helminth infections amongst HIV-infected adults. With the exception of safe flooring, WASH offers minimal additional benefit. However, WASH does appear to significantly reduce infection prevalence in adults who are not treated with chemotherapy. TRIAL REGISTRATION: ClinicalTrials.gov, NCT00507221. PMID- 29346386 TI - Histological subtypes of mouse mammary tumors reveal conserved relationships to human cancers. AB - Human breast cancer has been characterized by extensive transcriptional heterogeneity, with dominant patterns reflected in the intrinsic subtypes. Mouse models of breast cancer also have heterogeneous transcriptomes and we noted that specific histological subtypes were associated with particular subsets. We hypothesized that unique sets of genes define each tumor histological type across mouse models of breast cancer. Using mouse models that contained both gene expression data and expert pathologist classification of tumor histology on a sample by sample basis, we predicted and validated gene expression signatures for Papillary, EMT, Microacinar and other histological subtypes. These signatures predict known histological events across murine breast cancer models and identify counterparts of mouse mammary tumor types in subtypes of human breast cancer. Importantly, the EMT, Adenomyoepithelial, and Solid signatures were predictive of clinical events in human breast cancer. In addition, a pan-cancer comparison revealed that the histological signatures were active in a variety of human cancers such as lung, oral, and esophageal squamous tumors. Finally, the differentiation status and transcriptional activity implicit within these signatures was identified. These data reveal that within tumor histology groups are unique gene expression profiles of differentiation and pathway activity that stretch well beyond the transgenic initiating events and that have clear applicability to human cancers. As a result, our work provides a predictive resource and insights into possible mechanisms that govern tumor heterogeneity. PMID- 29346387 TI - Inferring the risk factors behind the geographical spread and transmission of Zika in the Americas. AB - BACKGROUND: An unprecedented Zika virus epidemic occurred in the Americas during 2015-2016. The size of the epidemic in conjunction with newly recognized health risks associated with the virus attracted significant attention across the research community. Our study complements several recent studies which have mapped epidemiological elements of Zika, by introducing a newly proposed methodology to simultaneously estimate the contribution of various risk factors for geographic spread resulting in local transmission and to compute the risk of spread (or re-introductions) between each pair of regions. The focus of our analysis is on the Americas, where the set of regions includes all countries, overseas territories, and the states of the US. METHODOLOGY/PRINCIPAL FINDINGS: We present a novel application of the Generalized Inverse Infection Model (GIIM). The GIIM model uses real observations from the outbreak and seeks to estimate the risk factors driving transmission. The observations are derived from the dates of reported local transmission of Zika virus in each region, the network structure is defined by the passenger air travel movements between all pairs of regions, and the risk factors considered include regional socioeconomic factors, vector habitat suitability, travel volumes, and epidemiological data. The GIIM relies on a multi-agent based optimization method to estimate the parameters, and utilizes a data driven stochastic-dynamic epidemic model for evaluation. As expected, we found that mosquito abundance, incidence rate at the origin region, and human population density are risk factors for Zika virus transmission and spread. Surprisingly, air passenger volume was less impactful, and the most significant factor was (a negative relationship with) the regional gross domestic product (GDP) per capita. CONCLUSIONS/SIGNIFICANCE: Our model generates country level exportation and importation risk profiles over the course of the epidemic and provides quantitative estimates for the likelihood of introduced Zika virus resulting in local transmission, between all origin-destination travel pairs in the Americas. Our findings indicate that local vector control, rather than travel restrictions, will be more effective at reducing the risks of Zika virus transmission and establishment. Moreover, the inverse relationship between Zika virus transmission and GDP suggests that Zika cases are more likely to occur in regions where people cannot afford to protect themselves from mosquitoes. The modeling framework is not specific for Zika virus, and could easily be employed for other vector-borne pathogens with sufficient epidemiological and entomological data. PMID- 29346389 TI - Rising up: Fertility trends in Egypt before and after the revolution. AB - In 2014, Egypt's Demographic and Health Survey (EDHS) documented an increase in the total fertility rate (TFR) to 3.5, up from a low of 3.0 recorded by the 2008 EDHS. The increase has been anecdotally attributed to the social upheaval following Egypt's January 2011 revolution, but little is known about when fertility first began to increase and among which sub-groups of women. Using birth histories from seven rounds of EDHS (1992-2014), this study reconstructed fertility rates for single years from 1990-2013 and examined patterns of childbearing in five-year birth cohorts of women. We found that the decline in fertility reversed in 2007, earlier than postulated, plateaued and then increased again in 2013. The increase in TFR coincided with a convergence of fertility rates across education levels, and there is evidence of a shift toward childbearing at younger ages among more educated women, which may be inflating period measures of fertility. PMID- 29346388 TI - Safety and pharmacokinetic profile of fixed-dose ivermectin with an innovative 18mg tablet in healthy adult volunteers. AB - : Ivermectin is a pivotal drug for the control of onchocerciasis and lymphatic filariasis, which is increasingly identified as a useful drug for the control of other Neglected Tropical Diseases. Its role in the treatment of soil transmitted helminthiasis through improved efficacy against Trichuris trichiura in combination with other anthelmintics might accelerate the progress towards breaking transmission. Ivermectin is a derivative of Avermectin B1, and consists of an 80:20 mixture of the equipotent homologous 22,23 dehydro B1a and B1b. Pharmacokinetic characteristics and safety profile of ivermectin allow to explore innovative uses to further expand its utilization through mass drug administration campaigns to improve coverage rates. We conducted a phase I clinical trial with 54 healthy adult volunteers who sequentially received 2 experimental treatments using a new 18 mg ivermectin tablet in a fixed-dose strategy of 18 and 36 mg single dose regimens, compared to the standard, weight based 150-200 MUg/kg, regimen. Volunteers were recruited in 3 groups based on body weight. Plasma concentrations of ivermectin were measured through HPLC up to 168 hours post treatment. Safety data showed no significant differences between groups and no serious adverse events: headache was the most frequent adverse event in all treatment groups, none of them severe. Pharmacokinetic parameters showed a half-life between 81 and 91 h in the different treatment groups. When comparing the systemic bioavailability (AUC0t and Cmax) of the reference product (WA-ref) with the other two study groups using fixed doses, we observed an overall increase in AUC0t and Cmax for the two experimental treatments of 18 mg and 36 mg. Body mass index (BMI) and weight were associated with t1/2 and V/F, probably reflecting the high liposolubility of IVM with longer retention times proportional to the presence of more adipose tissue. Systemic exposure to ivermectin (AUC0t or Cmax) was not associated with BMI or weight in our study. These findings contribute to further understand the pharmacokinetic characteristics of ivermectin, highlighting its safety across different dosing regimens. They also correlate with known pharmacokinetic parameters showing stable levels of AUC and Cmax across a wide range of body weights, which justifies the strategy of fix dosing from a pharmacokinetic perspective. TRIAL REGISTRATION: ClinicalTrials.gov NCT03173742. PMID- 29346390 TI - Africanized bees extend their distribution in California. AB - Africanized honey bees (Apis mellifera) arrived in the western hemisphere in the 1950s and quickly spread north reaching California in the 1990s. These bees are highly defensive and somewhat more difficult to manage for commercial purposes than the European honey bees traditionally kept. The arrival of these bees and their potentially replacing European bees over much of the state is thus of great concern. After a 25 year period of little systematic sampling, a recent small scale study found Africanized honey bees in the Bay Area of California, far north of their last recorded distribution. The purpose of the present study was to expand this study by conducting more intensive sampling of bees from across northern California. We found Africanized honey bees as far north as Napa and Sacramento. We also found Africanized bees in all counties south of these counties. Africanized honey bees were particularly abundant in parts of the central valley and Monterey. This work suggests the northern spread of Africanized honey bees may not have stopped. They may still be moving north at a slow rate, although due to the long gaps in sampling it is currently impossible to tell for certain. Future work should routinely monitor the distribution of these bees to distinguish between these two possibilities. PMID- 29346392 TI - Sequential linear regression with online standardized data. AB - The present study addresses the problem of sequential least square multidimensional linear regression, particularly in the case of a data stream, using a stochastic approximation process. To avoid the phenomenon of numerical explosion which can be encountered and to reduce the computing time in order to take into account a maximum of arriving data, we propose using a process with online standardized data instead of raw data and the use of several observations per step or all observations until the current step. Herein, we define and study the almost sure convergence of three processes with online standardized data: a classical process with a variable step-size and use of a varying number of observations per step, an averaged process with a constant step-size and use of a varying number of observations per step, and a process with a variable or constant step-size and use of all observations until the current step. Their convergence is obtained under more general assumptions than classical ones. These processes are compared to classical processes on 11 datasets for a fixed total number of observations used and thereafter for a fixed processing time. Analyses indicate that the third-defined process typically yields the best results. PMID- 29346391 TI - Development and validation of a population based risk algorithm for obesity: The Obesity Population Risk Tool (OPoRT). AB - BACKGROUND: Given the dramatic rise in the prevalence of obesity, greater focus on prevention is necessary. We sought to develop and validate a population risk tool for obesity to inform prevention efforts. METHODS: We developed the Obesity Population Risk Tool (OPoRT) using the longitudinal National Population Health Survey and sex-specific Generalized Estimating Equations to predict the 10-year risk of obesity among adults 18 and older. The model was validated using a bootstrap approach accounting for the survey design. Model performance was measured by the Brier statistic, discrimination was measured by the C-statistic, and calibration was assessed using the Hosmer-Lemeshow Goodness of Fit Chi Square (HL chi2). RESULTS: Predictive factors included baseline body mass index, age, time and their interactions, smoking status, living arrangements, education, alcohol consumption, physical activity, and ethnicity. OPoRT showed good performance for males and females (Brier 0.118 and 0.095, respectively), excellent discrimination (C statistic >= 0.89) and achieved calibration (HL chi2 <20). CONCLUSION: OPoRT is a valid and reliable algorithm that can be applied to routinely collected survey data to estimate the risk of obesity and identify groups at increased risk of obesity. These results can guide prevention efforts aimed at reducing the population burden of obesity. PMID- 29346393 TI - Computational study of HIV gp120 as a target for polyanionic entry inhibitors: Exploiting the V3 loop region. AB - Multiple approaches are being utilized to develop therapeutics to treat HIV infection. One approach is designed to inhibit entry of HIV into host cells, with a target being the viral envelope glycoprotein, gp120. Polyanionic compounds have been shown to be effective in inhibiting HIV entry, with a mechanism involving electrostatic interactions with the V3 loop of gp120 being proposed. In this study, we applied computational methods to elucidate molecular interactions between the repeat unit of the precisely alternating polyanion, Poly(4,4' stilbenedicarboxylate-alt-maleic acid) (DCSti-alt-MA) and the V3 loop of gp120 from strains of HIV against which these polyanions were previously tested (IIIb, BaL, 92UG037, JR-CSF) as well as two strains for which gp120 crystal structures are available (YU2, 2B4C). Homology modeling was used to create models of the gp120 proteins. Using monomers of the gp120 protein, we applied extensive molecular dynamics simulations to obtain dominant morphologies that represent a variety of open-closed states of the V3 loop to examine the interaction of 112 ligands of the repeating units of DCSti-alt-MA docked to the V3 loop and surrounding residues. Using the distance between the V1/V2 and V3 loops of gp120 as a metric, we revealed through MD simulations that gp120 from the lab-adapted strains (BaL and IIIb), which are more susceptible to inhibition by DCSti-alt-MA, clearly transitioned to the closed state in one replicate of each simulation set, whereas none of the replicates from the Tier II strains (92UG037 and JR-CSF) did so. Docking repeat unit microspecies to the gp120 protein before and after MD simulation enabled identification of residues that were key for binding. Notably, only a few residues were found to be important for docking both before and after MD simulation as a result of the conformational heterogeneity provided by the simulations. Consideration of the residues that were consistently involved in interactions with the ligand revealed the importance of both hydrophilic and hydrophobic moieties of the ligand for effective binding. The results also suggest that polymers of DCSti-alt-MA with repeating units of different configurations may have advantages for therapeutic efficacy. PMID- 29346394 TI - Decision time and confidence predict choosers' identification performance in photographic showups. AB - In vast contrast to the multitude of lineup studies that report on the link between decision time, confidence, and identification accuracy, only a few studies looked at these associations for showups, with results varying widely across studies. We therefore set out to test the individual and combined value of decision time and post-decision confidence for diagnosing the accuracy of positive showup decisions using confidence-accuracy characteristic curves and Bayesian analyses. Three-hundred-eighty-four participants viewed a stimulus event and were subsequently presented with two showups which could be target-present or target-absent. As expected, we found a negative decision time-accuracy and a positive post-decision confidence-accuracy correlation for showup selections. Confidence-accuracy characteristic curves demonstrated the expected additive effect of combining both postdictors. Likewise, Bayesian analyses, taking into account all possible target-presence base rate values showed that fast and confident identification decisions were more diagnostic than slow or less confident decisions, with the combination of both being most diagnostic for postdicting accurate and inaccurate decisions. The postdictive value of decision time and post-decision confidence was higher when the prior probability that the suspect is the perpetrator was high compared to when the prior probability that the suspect is the perpetrator was low. The frequent use of showups in practice emphasizes the importance of these findings for court proceedings. Overall, these findings support the idea that courts should have most trust in showup identifications that were made fast and confidently, and least in showup identifications that were made slowly and with low confidence. PMID- 29346395 TI - Evaluation of participatory teaching methods in undergraduate medical students' learning along the first academic courses. AB - The European Higher Education Area (EHEA) is an opportunity to redesign medical education. Academic training is now focused on acquiring not only knowledge, but also those competencies critical to face complex professional scenarios. Together with re-evaluating traditional teaching methods, EHEA has forced a technological shift in the way we teach. By critically assessing the impact of novel teaching methodologies, we can better define biomedical education demands. Here, we address this question on a sample of medical students instructed in basic subjects along the first two academic courses. Two hundred and one medical students participated in the study (n = 128 first year, n = 73 second year). Quantitative (conventional survey statistics) and qualitative (open coding) approaches were combined to analyze data from surveys, confidential questionnaires, semi-structured interviews and open discussion. First year medical students rated more positively the use of participatory methodologies than second year students. A major drawback is detected in the perceived workload. Active teaching methodologies show a strong reliance on their time of implementation for medical students, a key aspect to be considered in the design of integrative participatory curricula along the first academic courses. PMID- 29346396 TI - Serum miRNA levels are related to glucose homeostasis and islet autoantibodies in children with high risk for type 1 diabetes. AB - Micro RNAs (miRNAs) are promising disease biomarkers due to their high stability. Their expression in serum is altered in type 1 diabetes, but whether deviations exist in individuals with high risk for type 1 diabetes remains unexplored. We therefore assessed serum miRNAs in high-risk individuals (n = 21) positive for multiple islet autoantibodies, age-matched healthy children (n = 17) and recent onset type 1 diabetes patients (n = 8), using Serum/Plasma Focus microRNA PCR Panels from Exiqon. The miRNA levels in the high-risk group were similar to healthy controls, and no specific miRNA profile was identified for the high-risk group. However, serum miRNAs appeared to reflect glycemic status and ongoing islet autoimmunity in high-risk individuals, since several miRNAs were associated to glucose homeostasis and autoantibody titers. High-risk individuals progressing to clinical disease after the sampling could not be clearly distinguished from non-progressors, while miRNA expression in the type 1 diabetes group deviated significantly from high-risk individuals and healthy controls, perhaps explained by major metabolic disturbances around the time of diagnosis. PMID- 29346397 TI - Dose enhancement effects of gold nanoparticles specifically targeting RNA in breast cancer cells. AB - Localization microscopy has shown to be capable of systematic investigations on the arrangement and counting of cellular uptake of gold nanoparticles (GNP) with nanometer resolution. In this article, we show that the application of specially modified RNA targeting gold nanoparticles ("SmartFlares") can result in ring like shaped GNP arrangements around the cell nucleus. Transmission electron microscopy revealed GNP accumulation in vicinity to the intracellular membrane structures including them of the endoplasmatic reticulum. A quantification of the radio therapeutic dose enhancement as a proof of principle was conducted with gammaH2AX foci analysis: The application of both-SmartFlares and unmodified GNPs-lead to a significant dose enhancement with a factor of up to 1.2 times the dose deposition compared to non-treated breast cancer cells. This enhancement effect was even more pronounced for SmartFlares. Furthermore, it was shown that a magnetic field of 1 Tesla simultaneously applied during irradiation has no detectable influence on neither the structure nor the dose enhancement dealt by gold nanoparticles. PMID- 29346398 TI - Dual function of EDTA with silver nanoparticles for root canal treatment-A novel modification. AB - The chelating and antimicrobial capacity of a novel modification of 17% EDTA with silver nanoparticles (AgNPs) (EDTA-AgNPs) was evaluated in-vitro for root canal treatment (RCT). The EDTA-AgNPs solution was characterized by UV-Vis spectroscopy, zeta-potential and high-resolution transmission electron microscopy (HRTEM). Antimicrobial capacity was evaluated against Candida albicans and Staphylococcus aureus in planktonic and biofilm cells by broth macrodilution (24 h) and XTT assays, (1, 10 and 30 min) respectively. The chelating capacity of EDTA-AgNPs was assessed indirectly (smear layer removal) and directly (demineralizing effect) in bovine dentin at two silver concentrations, 16 and 512 MUg/ml at 1 and 10 minutes of exposure time. Smear layer removal was evaluated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The demineralizing effect was determined by atomic absorption spectroscopy (AAS), microhardness test (MH) and X-ray diffractometer (XRD). Synthesized AgNPs were quasi-spherical in shape with an average size of 13.09 +/- 8.05 nm. 17% EDTA AgNPs was effective to inhibit C. albicans and S. aureus in planktonic and biofilm cultures. The smear layer removal and demineralizing effect were similar between 17% EDTA-AgNPs and 17% EDTA treatments. The 17% EDTA-AgNPs solution proved to be an effective antimicrobial agent, and has a similar chelating capacity to 17% EDTA alone. These in-vitro studies strongly suggest that EDTA AgNPs could be used for effective smear layer removal, having an antimicrobial effect at the same time during RCT. PMID- 29346399 TI - The motivation-based calving facility: Social and cognitive factors influence isolation seeking behaviour of Holstein dairy cows at calving. AB - In order to improve animal welfare it is recommended that dairy farmers move calving cows from the herd to individual pens when calving is imminent. However, the practicality of moving cows has proven a challenge and may lead to disturbance of the cows rather than easing the process of calving. One solution may be to allow the cow to seek isolation prior to calving. This study examined whether pre-parturient dairy cows will isolate in an individual calving pen placed in a group calving setting and whether a closing gate in this individual calving pen will cause more cows to isolate prior to calving. Danish Holstein cows (n = 66) were housed in groups of six in a group pen with access to six individual calving pens connected to the group area. Cows were trained to use one of two isolation opportunities i.e. individual calving pens with functional closing gates (n = 35) allowing only one cow access at a time, or individual calving pens with permanently open gates allowing free cow traffic between group area and individual pen (n = 31). The response variables were calving site, calving behaviour and social behaviour. Unexpectedly, a functional gate did not facilitate isolation seeking, perhaps because the cows were not able to combine a learnt response with the motivation to isolate. Dominant cows had the highest chance of calving in an individual calving pen. If an alien calf was present in the group pen or any of the individual pens, cows were less likely to calve in an individual calving pen. Future studies should allow cows easy access to an individual calving pen and explore what motivates pre-parturient cows to seek isolation in order to facilitate voluntary use of individual calving pens. PMID- 29346400 TI - The mechanisms how heparin affects the tumor cell induced VEGF and chemokine release from platelets to attenuate the early metastatic niche formation. AB - Metastasis is responsible for the majority of cancer associated fatalities. Tumor cells leaving the primary tumor and entering the blood flow immediately interact with platelets. Activated platelets contribute in different ways to cancer cell survival and proliferation, e.g. in formation of the early metastatic niche by release of different growth factors and chemokines. Here we show that a direct interaction between platelets and MV3 melanoma or MCF7 breast cancer cells induces platelet activation and a VEGF release in citrated plasma that cannot be further elevated by the coagulation cascade and generated thrombin. In contrast, the release of platelet-derived chemokines CXCL5 and CXCL7 depends on both, a thrombin-mediated platelet activation and a direct interaction between tumor cells and platelets. Preincubation of platelets with therapeutic concentrations of unfractionated heparin reduces the tumor cell initiated VEGF release from platelets. In contrast, tumor cell induced CXCL5 and CXCL7 release from platelets was not impacted by heparin pretreatment in citrated plasma. In defibrinated, recalcified plasma, on the contrary, heparin is able to reduce CXCL5 and CXCL7 release from platelets by thrombin inhibition. Our data indicate that different chemokines and growth factors in diverse platelet granules are released in tightly regulated processes by various trigger mechanisms. We show for the first time that heparin is able to reduce the mediator release induced by different tumor cells both in a contact and coagulation dependent manner. PMID- 29346401 TI - CD1d deficiency inhibits the development of abdominal aortic aneurysms in LDL receptor deficient mice. AB - An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta leading to serious complications and mostly to death. AAA development is associated with an accumulation of inflammatory cells in the aorta including NKT cells. An important factor in promoting the recruitment of these inflammatory cells into tissues and thereby contributing to the development of AAA is angiotensin II (Ang II). We demonstrate that a deficiency in CD1d dependent NKT cells under hyperlipidemic conditions (LDLr-/-CD1d-/- mice) results in a strong decline in the severity of angiotensin II induced aneurysm formation when compared with LDLr /- mice. In addition, we show that Ang II amplifies the activation of NKT cells both in vivo and in vitro. We also provide evidence that type I NKT cells contribute to AAA development by inducing the expression of matrix degrading enzymes in vSMCs and macrophages, and by cytokine dependently decreasing vSMC viability. Altogether, these data prove that CD1d-dependent NKT cells contribute to AAA development in the Ang II-mediated aneurysm model by enhancing aortic degradation, establishing that therapeutic applications which target NKT cells can be a successful way to prevent AAA development. PMID- 29346402 TI - Gene regulation in Kluyveromyces marxianus in the context of chromosomes. AB - Eukaryotes, including the unicellular eukaryotes such as yeasts, employ multiple levels of gene regulation. Regulation of chromatin structure through chromatin compaction cascades, and influenced by transcriptional insulators, might play a role in the coordinated regulation of genes situated at adjacent loci and expressed as a co-regulated cluster. Subtelomeric gene silencing, which has previously been described in the yeast Saccharomyces cerevisiae, is an example of this phenomenon. Transcription from a common regulatory element located around a shared intergenic region is another factor that could coordinate the transcription of genes at adjacent loci. Additionally, the presence of DNA binding sites for the same transcription factor may coordinate expression of multiple genes. Yeasts such as the industrially important Kluyveromyces marxianus may also display these modes of regulation, but this has not been explored to date. An exploration was done using a complete genome and RNA-seq data from a previous study of the transcriptional response to glucose or xylose as the carbon source in a defined culture medium, and investigating whether the species displays clusters of co-localised differentially expressed genes. Regions of possible subtelomeric silencing were evident, but were non-responsive to the carbon sources tested here. Additionally, glucose or xylose responsive clusters were discovered far from telomeres which contained some of the most significantly differentially expressed genes, encoding enzymes involved in the utilisation of alternative carbon sources such as the industrially important inulinase gene INU1. These clusters contained putative binding sites for the carbon source responsive transcription factors Mig1 and Adr1. Additionally, we investigated the potential contribution of common intergenic regions in co-regulation. Some observations were also made in terms of the evolutionary conservation of these clusters among yeast species and the presence of potential transcriptional insulators at the periphery of these clusters. PMID- 29346403 TI - Prime incision: A minimally invasive approach to breast cancer surgical treatment A 2 cohort retrospective comparison with conventional breast conserving surgery. AB - The prime incision technique is an oncoplastic surgery aimed to remove both the breast tumor and the sentinel lymph node through one incision, thus providing better aesthetic results than the conventional breast conservative two incision technique. We retrospectively evaluated 2 cohorts of 60 consecutive breast cancer patients operated by either conventional breast conservative surgery (N = 26) or one incision surgery (N = 34). There were no recurrence or death events observed in any group. No difference was seen regarding the incidence of surgical complications. In the prime incision group the breast volume removed was significantly lower than in the conventional surgery group as well as was the surgical time and the number of dissected lymph nodes. Aesthetical results were better in the one incision group. Further prospective studies are needed to validate the one incision technique as a surgical option for selected early stage breast cancer patients. PMID- 29346404 TI - Bio-fortification potential of global wild annual lentil core collection. AB - Lentil, generally known as poor man's' meat due to its high protein value is also a good source of dietary fiber, antioxidants and vitamins along with fast cooking characteristics. It could be used globally as a staple food crop to eradicate hidden hunger, if this nutritionally rich crop is further enriched with essential minerals. This requires identification of essential mineral rich germplasm. So, in the present study, a core set of 96 wild accessions extracted from 405 global wild annual collections comprising different species was analyzed to determine its bio-fortification potential. Impressive variation (mg/100 g) was observed for different minerals including Na (30-318), K (138.29-1578), P (37.50-593.75), Ca (4.74-188.75), Mg (15-159), Fe (2.82-14.12), Zn (1.29-12.62), Cu (0.5-7.12), Mn (1.22-9.99), Mo (1.02-11.89), Ni (0.16-3.49), Pb (0.01-0.58), Cd (0-0.03), Co (0 0.63) and As (0-0.02). Hierarchical clustering revealed high intra- and inter specific variability. Further, correlation study showed positive significant association among minerals and between minerals including agro-morphological traits. Accessions representation from Turkey and Syria had maximum variability for different minerals. Diversity analysis exhibited wide geographical variations across gene-pool in core set. Potential use of the identified trait-specific genetic resources could be initial genetic material, for genetic base broadening and biofortification of cultivated lentil. PMID- 29346406 TI - Shea (Vitellaria paradoxa Gaertn C. F.) fruit yield assessment and management by farm households in the Atacora district of Benin. AB - Vitellaria paradoxa (Gaertn C. F.), or shea tree, remains one of the most valuable trees for farmers in the Atacora district of northern Benin, where rural communities depend on shea products for both food and income. To optimize productivity and management of shea agroforestry systems, or "parklands," accurate and up-to-date data are needed. For this purpose, we monitored120 fruiting shea trees for two years under three land-use scenarios and different soil groups in Atacora, coupled with a farm household survey to elicit information on decision making and management practices. To examine the local pattern of shea tree productivity and relationships between morphological factors and yields, we used a randomized branch sampling method and applied a regression analysis to build a shea yield model based on dendrometric, soil and land-use variables. We also compared potential shea yields based on farm household socio economic characteristics and management practices derived from the survey data. Soil and land-use variables were the most important determinants of shea fruit yield. In terms of land use, shea trees growing on farmland plots exhibited the highest yields (i.e., fruit quantity and mass) while trees growing on Lixisols performed better than those of the other soil group. Contrary to our expectations, dendrometric parameters had weak relationships with fruit yield regardless of land-use and soil group. There is an inter-annual variability in fruit yield in both soil groups and land-use type. In addition to observed inter annual yield variability, there was a high degree of variability in production among individual shea trees. Furthermore, household socioeconomic characteristics such as road accessibility, landholding size, and gross annual income influence shea fruit yield. The use of fallow areas is an important land management practice in the study area that influences both conservation and shea yield. PMID- 29346405 TI - Oxytocin alters cell fate selection of rat neural progenitor cells in vitro. AB - Synthetic oxytocin (sOT) is widely used during labor, yet little is known about its effects on fetal brain development despite evidence that it reaches the fetal circulation. Here, we tested the hypothesis that sOT would affect early neurodevelopment by investigating its effects on neural progenitor cells (NPC) from embryonic day 14 rat pups. NPCs expressed the oxytocin receptor (OXTR), which was downregulated by 45% upon prolonged treatment with sOT. Next, we examined the effects of sOT on NPC death, apoptosis, proliferation, and differentiation using antibodies to NeuN (neurons), Olig2 (oligodendrocytes), and GFAP (astrocytes). Treated NPCs were analysed with unbiased high-throughput immunocytochemistry. Neither 6 nor 24 h exposure to 100 pM or 100 nM sOT had an effect on viability as assessed by PI or CC-3 immunocytochemistry. Similarly, sOT had negligible effect on NPC proliferation, except that the overall rate of NPC proliferation was higher in the 24 h compared to the 6 h group regardless of sOT exposure. The most significant finding was that sOT exposure caused NPCs to select a predominantly neuronal lineage, along with a concomitant decrease in glial cells. Collectively, our data suggest that perinatal exposure to sOT can have neurodevelopmental consequences for the fetus, and support the need for in vivo anatomical and behavioral studies in offspring exposed to sOT in utero. PMID- 29346408 TI - Long lasting insecticidal bed nets ownership, access and use in a high malaria transmission setting before and after a mass distribution campaign in Uganda. AB - INTRODUCTION: Uganda is conducting a second mass LLIN distribution campaign and Katakwi district recently received LLINs as part of this activity. This study was conducted to measure the success of the campaign in this setting, an area of high transmission, with the objectives to estimate LLIN ownership, access and use pre and post campaign implementation. METHODS: Two identical cross sectional surveys, based on the Malaria Indicator Survey methodology, were conducted in three sub counties in this district (Kapujan, Magoro and Toroma), six months apart, one before and another after the mass distribution campaign. Data on three main LLIN indicators including; household LLIN ownership, population with access to an LLIN and use were collected using a household and a women's questionnaire identical to the Malaria Indicator Survey. RESULTS: A total of 601 and 607 households were randomly selected in survey one and two respectively. At baseline, 60.57% (56.53 64.50) of households owned at least one net for every two persons who stayed in the household the night before the survey which significantly increased to 70.35% (66.54-73.96) after the campaign (p = 0.001). Similarly, the percentage of the household population with access to an LLIN significantly increased from 84.76% (82.99-86.52) to 91.57% (90.33-92.81), p = 0.001 and the percentage of household population that slept under an LLIN the night before the survey also significantly increased from 56.85% (55.06-58.82) to 81.72% (76.75-83.21), p = 0.001. CONCLUSION: The LLIN mass campaign successfully achieved the national target of over eighty-five percent of the population with access to an LLIN in this setting, however, universal household coverage and use were fourteen and three percent points less than the national target respectively. This is useful for malaria programs to consider during the planning of future campaigns by tailoring efforts around deficient areas like mechanisms to increase universal coverage and behavior change communication. PMID- 29346407 TI - Relaxin reverses inflammatory and immune signals in aged hearts. AB - BACKGROUND: 'Healthy' aging drives structural and functional changes in the heart including maladaptive electrical remodeling, fibrosis and inflammation, which lower the threshold for cardiovascular diseases such as heart failure (HF) and atrial fibrillation (AF). Despite mixed results in recent clinical trials, Relaxin-therapy for 2-days could reduce mortality by 37% at 180-days post treatment, in patients with acute decompensated HF. Relaxin's short life-span (hours) but long-lasting protective actions led us to test the hypothesis that relaxin acts at a genomic level to reverse maladaptive remodeling in aging and HF. METHODS AND RESULTS: Young (9-month) and aged (24-month), male and female F 344/Brown Norway rats were treated with relaxin (0.4 mg/kg/day) for 2-weeks delivered by subcutaneous osmotic mini-pumps or with sodium acetate (controls). The genomic effects of aging and relaxin were evaluated by extracting RNA from the left ventricles and analyzing genomic changes by RNA-sequencing, Ingenuity Pathway Analysis, MetaCore and tissue immunohistochemistry. We found that aging promotes a native inflammatory response with distinct sex-differences and relaxin suppresses transcription of multiple genes and signaling pathways associated with inflammation and HF in both genders. In addition, aging significantly increased: macrophage infiltration and atrial natriuretic peptide levels in female ventricles, and activation of the complement cascade, whereas relaxin reversed these age-related effects. CONCLUSION: These data support the hypothesis that relaxin alters gene transcription and suppresses inflammatory pathways and genes associated with HF and aging. Relaxin's suppression of inflammation and fibrosis supports its potential as a therapy for cardiovascular and inflammation-related diseases, such as HF, AF and diabetes. PMID- 29346410 TI - An evaluation of multi-probe locality sensitive hashing for computing similarities over web-scale query logs. AB - Many modern applications of AI such as web search, mobile browsing, image processing, and natural language processing rely on finding similar items from a large database of complex objects. Due to the very large scale of data involved (e.g., users' queries from commercial search engines), computing such near or nearest neighbors is a non-trivial task, as the computational cost grows significantly with the number of items. To address this challenge, we adopt Locality Sensitive Hashing (a.k.a, LSH) methods and evaluate four variants in a distributed computing environment (specifically, Hadoop). We identify several optimizations which improve performance, suitable for deployment in very large scale settings. The experimental results demonstrate our variants of LSH achieve the robust performance with better recall compared with "vanilla" LSH, even when using the same amount of space. PMID- 29346409 TI - Prediction of absolute risk of acute graft-versus-host disease following hematopoietic cell transplantation. AB - Allogeneic hematopoietic cell transplantation (HCT) is the treatment of choice for a variety of hematologic malignancies and disorders. Unfortunately, acute graft-versus-host disease (GVHD) is a frequent complication of HCT. While substantial research has identified clinical, genetic and proteomic risk factors for acute GVHD, few studies have sought to develop risk prediction tools that quantify absolute risk. Such tools would be useful for: optimizing donor selection; guiding GVHD prophylaxis, post-transplant treatment and monitoring strategies; and, recruitment of patients into clinical trials. Using data on 9,651 patients who underwent first allogeneic HLA-identical sibling or unrelated donor HCT between 01/1999-12/2011 for treatment of a hematologic malignancy, we developed and evaluated a suite of risk prediction tools for: (i) acute GVHD within 100 days post-transplant and (ii) a composite endpoint of acute GVHD or death within 100 days post-transplant. We considered two sets of inputs: (i) clinical factors that are typically readily-available, included as main effects; and, (ii) main effects combined with a selection of a priori specified two-way interactions. To build the prediction tools we used the super learner, a recently developed ensemble learning statistical framework that combines results from multiple other algorithms/methods to construct a single, optimal prediction tool. Across the final super learner prediction tools, the area-under-the curve (AUC) ranged from 0.613-0.640. Improving the performance of risk prediction tools will likely require extension beyond clinical factors to include biological variables such as genetic and proteomic biomarkers, although the measurement of these factors may currently not be practical in standard clinical settings. PMID- 29346411 TI - Evaluation of Hirst-type spore traps in outdoor Aspergillaceae monitoring during large demolition work in hospital. AB - Demolition can generate fungal spore suspensions in association with various adverse health effects, such as high risk of invasive aspergillosis in immunocompromised patients. One block of Edouard Herriot Hospital was entirely demolished. The aim of the present study was to evaluate Hirst-type spore traps utility in monitoring outdoor Aspergillaceae (Aspergillus spp. + Penicillium spp.) spores in part of Edouard Herriot Hospital (Lyon, France) undergoing major demolition. Three periods were scheduled in 2015: (A) Gutting of building and asbestos removal, (B) Demolition of floors, (C) Excavation and earthwork. Outdoor Aspergillaceae fungal load was monitored by cultivable (Air Ideal(r), bioMerieux) and non-cultivable methods (Lanzoni VPPS-2000, Analyzair(r), Bologna, Italy). Differences of Aspergillaceae recorded with Hirst-type spore traps were observed between Gerland and Edouard Herriot Hospital. Differences between Aspergillaceae were recorded between day time and night time at Gerland and Edouard Herriot Hospital. Daily paired differences between Aspergillaceae recorded with non cultivable methodology at Edouard Herriot Hospital and in an area without demolition work were significant in Period A vs Period B (p = 10-4) and Period A vs Period C (p = 10-4). Weak correlation of daily Aspergillaceae recorded by both methods at Edouard Herriot Hospital was significant only for Period C (r = 0.26, p = 0.048, n = 58). Meteorological parameters and type of demolition works were found to heavily influenced Aspergillaceae dispersion. Non-cultivable methodology is a promising tool for outdoor Aspergillaceae scrutiny during major demolition work in hospital, helping infection control staff to rapidly implement control measures. PMID- 29346412 TI - A comparative analysis of preservation techniques for the optimal molecular detection of hookworm DNA in a human fecal specimen. AB - BACKGROUND: Proper collection and storage of fecal samples is necessary to guarantee the subsequent reliability of DNA-based soil-transmitted helminth diagnostic procedures. Previous research has examined various methods to preserve fecal samples for subsequent microscopic analysis or for subsequent determination of overall DNA yields obtained following DNA extraction. However, only limited research has focused on the preservation of soil-transmitted helminth DNA in stool samples stored at ambient temperature or maintained in a cold chain for extended periods of time. METHODOLOGY: Quantitative real-time PCR was used in this study as a measure of the effectiveness of seven commercially available products to preserve hookworm DNA over time and at different temperatures. Results were compared against "no preservative" controls and the "gold standard" of rapidly freezing samples at -20 degrees C. The preservation methods were compared at both 4 degrees C and at simulated tropical ambient temperature (32 degrees C) over a period of 60 days. Evaluation of the effectiveness of each preservative was based on quantitative real-time PCR detection of target hookworm DNA. CONCLUSIONS: At 4 degrees C there were no significant differences in DNA amplification efficiency (as measured by Cq values) regardless of the preservation method utilized over the 60-day period. At 32 degrees C, preservation with FTA cards, potassium dichromate, and a silica bead two-step desiccation process proved most advantageous for minimizing Cq value increases, while RNA later, 95% ethanol and Paxgene also demonstrate some protective effect. These results suggest that fecal samples spiked with known concentrations of hookworm-derived egg material can remain at 4 degrees C for 60 days in the absence of preservative, without significant degradation of the DNA target. Likewise, a variety of preservation methods can provide a measure of protection in the absence of a cold chain. As a result, other factors, such as preservative toxicity, inhibitor resistance, preservative cost, shipping requirements, sample infectivity, and labor costs should be considered when deciding upon an appropriate method for the storage of fecal specimens for subsequent PCR analysis. Balancing logistical factors and the need to preserve the target DNA, we believe that under most circumstances 95% ethanol provides the most pragmatic choice for preserving stool samples in the field. PMID- 29346413 TI - Genetic diversity and potential routes of transmission of Mycobacterium bovis in Mozambique. AB - Bovine tuberculosis is a zoonotic disease with largely unknown impact in Africa, with risk factors such as HIV and direct contact with animals or consumption of Mycobacterium bovis infected animal products. In order to understand and quantify this risk and design intervention strategies, good epidemiological studies are needed. Such studies can include molecular typing of M. bovis isolates. The aim of this study was to apply these tools to provide novel information concerning the distribution of bovine tuberculosis in cattle in Mozambique and thereby provide relevant information to guide policy development and strategies to contain the disease in livestock, and reduce the risk associated with transmission to humans. A collection of 178 M. bovis isolates was obtained from cattle in Mozambique. Using spoligotyping and regions of difference analysis, we classified the isolates into clonal complexes, thus reporting the first characterisation of M. bovis strains in this region. Data from MIRU-VNTR typing was used to compare isolates from a number of African countries, revealing a deeply geographically structured diversity of M. bovis. Eastern Africa appears to show high diversity, suggesting deep evolution in that region. The diversity of M. bovis in Africa does not seem to be a function of recent importation of animals, but is probably maintained within each particular region by constant reinfection from reservoir animals. Understanding the transmission routes of M. bovis in Mozambique and elsewhere is essential in order to focus public health and veterinary resources to contain bovine tuberculosis. PMID- 29346414 TI - Reliability of plasma polar metabolite concentrations in a large-scale cohort study using capillary electrophoresis-mass spectrometry. AB - BACKGROUND: Cohort studies with metabolomics data are becoming more widespread, however, large-scale studies involving 10,000s of participants are still limited, especially in Asian populations. Therefore, we started the Tsuruoka Metabolomics Cohort Study enrolling 11,002 community-dwelling adults in Japan, and using capillary electrophoresis-mass spectrometry (CE-MS) and liquid chromatography mass spectrometry. The CE-MS method is highly amenable to absolute quantification of polar metabolites, however, its reliability for large-scale measurement is unclear. The aim of this study is to examine reproducibility and validity of large-scale CE-MS measurements. In addition, the study presents absolute concentrations of polar metabolites in human plasma, which can be used in future as reference ranges in a Japanese population. METHODS: Metabolomic profiling of 8,413 fasting plasma samples were completed using CE-MS, and 94 polar metabolites were structurally identified and quantified. Quality control (QC) samples were injected every ten samples and assessed throughout the analysis. Inter- and intra batch coefficients of variation of QC and participant samples, and technical intraclass correlation coefficients were estimated. Passing-Bablok regression of plasma concentrations by CE-MS on serum concentrations by standard clinical chemistry assays was conducted for creatinine and uric acid. RESULTS AND CONCLUSIONS: In QC samples, coefficient of variation was less than 20% for 64 metabolites, and less than 30% for 80 metabolites out of the 94 metabolites. Inter-batch coefficient of variation was less than 20% for 81 metabolites. Estimated technical intraclass correlation coefficient was above 0.75 for 67 metabolites. The slope of Passing-Bablok regression was estimated as 0.97 (95% confidence interval: 0.95, 0.98) for creatinine and 0.95 (0.92, 0.96) for uric acid. Compared to published data from other large cohort measurement platforms, reproducibility of metabolites common to the platforms was similar to or better than in the other studies. These results show that our CE-MS platform is suitable for conducting large-scale epidemiological studies. PMID- 29346415 TI - Acute multi-sgRNA knockdown of KEOPS complex genes reproduces the microcephaly phenotype of the stable knockout zebrafish model. AB - Until recently, morpholino oligonucleotides have been widely employed in zebrafish as an acute and efficient loss-of-function assay. However, off-target effects and reproducibility issues when compared to stable knockout lines have compromised their further use. Here we employed an acute CRISPR/Cas approach using multiple single guide RNAs targeting simultaneously different positions in two exemplar genes (osgep or tprkb) to increase the likelihood of generating mutations on both alleles in the injected F0 generation and to achieve a similar effect as morpholinos but with the reproducibility of stable lines. This multi single guide RNA approach resulted in median likelihoods for at least one mutation on each allele of >99% and sgRNA specific insertion/deletion profiles as revealed by deep-sequencing. Immunoblot showed a significant reduction for Osgep and Tprkb proteins. For both genes, the acute multi-sgRNA knockout recapitulated the microcephaly phenotype and reduction in survival that we observed previously in stable knockout lines, though milder in the acute multi-sgRNA knockout. Finally, we quantify the degree of mutagenesis by deep sequencing, and provide a mathematical model to quantitate the chance for a biallelic loss-of-function mutation. Our findings can be generalized to acute and stable CRISPR/Cas targeting for any zebrafish gene of interest. PMID- 29346416 TI - Decoding the network of Trypanosoma brucei proteins that determines sensitivity to apolipoprotein-L1. AB - In contrast to Trypanosoma brucei gambiense and T. b. rhodesiense (the causative agents of human African trypanosomiasis), T. b. brucei is lysed by apolipoprotein L1 (apoL1)-containing human serum trypanolytic factors (TLF), rendering it non infectious to humans. While the mechanisms of TLF1 uptake, apoL1 membrane integration, and T. b. gambiense and T. b. rhodesiense apoL1-resistance have been extensively characterised, our understanding of the range of factors that drive apoL1 action in T. b. brucei is limited. Selecting our bloodstream-form T. b. brucei RNAi library with recombinant apoL1 identified an array of factors that supports the trypanocidal action of apoL1, including six putative ubiquitin modifiers and several proteins putatively involved in membrane trafficking; we also identified the known apoL1 sensitivity determinants, TbKIFC1 and the V ATPase. Most prominent amongst the novel apoL1 sensitivity determinants was a putative ubiquitin ligase. Intriguingly, while loss of this ubiquitin ligase reduces parasite sensitivity to apoL1, its loss enhances parasite sensitivity to TLF1-dominated normal human serum, indicating that free and TLF1-bound apoL1 have contrasting modes-of-action. Indeed, loss of the known human serum sensitivity determinants, p67 (lysosomal associated membrane protein) and the cathepsin-L regulator, 'inhibitor of cysteine peptidase', had no effect on sensitivity to free apoL1. Our findings highlight a complex network of proteins that influences apoL1 action, with implications for our understanding of the anti-trypanosomal action of human serum. PMID- 29346417 TI - Xylose donor transport is critical for fungal virulence. AB - Cryptococcus neoformans, an AIDS-defining opportunistic pathogen, is the leading cause of fungal meningitis worldwide and is responsible for hundreds of thousands of deaths annually. Cryptococcal glycans are required for fungal survival in the host and for pathogenesis. Most glycans are made in the secretory pathway, although the activated precursors for their synthesis, nucleotide sugars, are made primarily in the cytosol. Nucleotide sugar transporters are membrane proteins that solve this topological problem, by exchanging nucleotide sugars for the corresponding nucleoside phosphates. The major virulence factor of C. neoformans is an anti-phagocytic polysaccharide capsule that is displayed on the cell surface; capsule polysaccharides are also shed from the cell and impede the host immune response. Xylose, a neutral monosaccharide that is absent from model yeast, is a significant capsule component. Here we show that Uxt1 and Uxt2 are both transporters specific for the xylose donor, UDP-xylose, although they exhibit distinct subcellular localization, expression patterns, and kinetic parameters. Both proteins also transport the galactofuranose donor, UDP galactofuranose. We further show that Uxt1 and Uxt2 are required for xylose incorporation into capsule and protein; they are also necessary for C. neoformans to cause disease in mice, although surprisingly not for fungal viability in the context of infection. These findings provide a starting point for deciphering the substrate specificity of an important class of transporters, elucidate a synthetic pathway that may be productively targeted for therapy, and contribute to our understanding of fundamental glycobiology. PMID- 29346418 TI - The relationship of lung function with ambient temperature. AB - BACKGROUND: Lung function is complex trait with both genetic and environmental factors contributing to variation. It is unknown how geographic factors such as climate affect population respiratory health. OBJECTIVE: To determine whether ambient air temperature is associated with lung function (FEV1) in the general population. DESIGN/SETTING: Associations between spirometry data from two National Health and Nutrition Examination Survey (NHANES) periods representative of the U.S. non-institutionalized population and mean annual ambient temperature were assessed using survey-weighted multivariate regression. PARTICIPANTS/MEASUREMENTS: The NHANES III (1988-94) cohort included 14,088 individuals (55.6% female) and the NHANES 2007-12 cohort included 14,036 individuals (52.3% female), with mean ages of 37.4+/-23.4 and 34.4+/-21.8 years old and FEV1 percent predicted values of 99.8+/-15.8% and 99.2+/-14.5%, respectively. RESULTS: After adjustment for confounders, warmer ambient temperatures were associated with lower lung function in both cohorts (NHANES III p = 0.020; NHANES 2007-2012 p = 0.014). The effect was similar in both cohorts with a 0.71% and 0.59% predicted FEV1 decrease for every 10 degrees F increase in mean temperature in the NHANES III and NHANES 2007-2012 cohorts, respectively. This corresponds to ~2 percent predicted difference in FEV1 between the warmest and coldest regions in the continental United States. CONCLUSIONS: In the general U.S. population, residing in regions with warmer ambient air temperatures was associated with lower lung function with an effect size similar to that of traffic pollution. Rising temperatures associated with climate change could have effects on pulmonary function in the general population. PMID- 29346419 TI - SAXS analysis of a soluble cytosolic NgBR construct including extracellular and transmembrane domains. AB - The Nogo-B receptor (NgBR) is involved in oncogenic Ras signaling through directly binding to farnesylated Ras. It recruits farnesylated Ras to the non lipid-raft membrane for interaction with downstream effectors. However, the cytosolic domain of NgBR itself is only partially folded. The lack of several conserved secondary structural elements makes this domain unlikely to form a complete farnesyl binding pocket. We find that inclusion of the extracellular and transmembrane domains that contain additional conserved residues to the cytosolic region results in a well folded protein with a similar size and shape to the E.coli cis-isoprenyl transferase (UPPs). Small Angle X-ray Scattering (SAXS) analysis reveals the radius of gyration (Rg) of our NgBR construct to be 18.2 A with a maximum particle dimension (Dmax) of 61.0 A. Ab initio shape modeling returns a globular molecular envelope with an estimated molecular weight of 23.0 kD closely correlated with the calculated molecular weight. Both Kratky plot and pair distribution function of NgBR scattering reveal a bell shaped peak which is characteristic of a single globularly folded protein. In addition, circular dichroism (CD) analysis reveals that our construct has the secondary structure contents similar to the UPPs. However, this result does not agree with the currently accepted topological orientation of NgBR which might partition this construct into three separate domains. This discrepancy suggests another possible NgBR topology and lends insight into a potential molecular basis of how NgBR facilitates farnesylated Ras recruitment. PMID- 29346420 TI - Initial acquisition and succession of the cystic fibrosis lung microbiome is associated with disease progression in infants and preschool children. AB - The cystic fibrosis (CF) lung microbiome has been studied in children and adults; however, little is known about its relationship to early disease progression. To better understand the relationship between the lung microbiome and early respiratory disease, we characterized the lower airways microbiome using bronchoalveolar lavage (BAL) samples obtained from clinically stable CF infants and preschoolers who underwent bronchoscopy and chest computed tomography (CT). Cross-sectional samples suggested a progression of the lower airways microbiome with age, beginning with relatively sterile airways in infancy. By age two, bacterial sequences typically associated with the oral cavity dominated lower airways samples in many CF subjects. The presence of an oral-like lower airways microbiome correlated with a significant increase in bacterial density and inflammation. These early changes occurred in many patients, despite the use of antibiotic prophylaxis in our cohort during the first two years of life. The majority of CF subjects older than four harbored a pathogen dominated airway microbiome, which was associated with a further increase in inflammation and the onset of structural lung disease, despite a negligible increase in bacterial density compared to younger patients with an oral-like airway microbiome. Our findings suggest that changes within the CF lower airways microbiome occur during the first years of life and that distinct microbial signatures are associated with the progression of early CF lung disease. PMID- 29346421 TI - The absence of specific yeast heat-shock proteins leads to abnormal aggregation and compromised autophagic clearance of mutant Huntingtin proteins. AB - The functionality of a protein depends on its correct folding, but newly synthesized proteins are susceptible to aberrant folding and aggregation. Heat shock proteins (HSPs) function as molecular chaperones that aid in protein folding and the degradation of misfolded proteins. Trinucleotide (CAG) repeat expansion in the Huntingtin gene (HTT) results in the expression of misfolded Huntingtin protein (Htt), which contributes to the development of Huntington's disease. We previously found that the degradation of mutated Htt with polyQ expansion (Htt103QP) depends on both ubiquitin proteasome system and autophagy. However, the role of heat shock proteins in the clearance of mutated Htt remains poorly understood. Here, we report that cytosolic Hsp70 (Ssa family), its nucleotide exchange factors (Sse1 and Fes1), and a Hsp40 co-chaperone (Ydj1) are required for inclusion body formation of Htt103QP proteins and their clearance via autophagy. Extended induction of Htt103QP-GFP leads to the formation of a single inclusion body in wild-type yeast cells, but mutant cells lacking these HSPs exhibit increased number of Htt103QP aggregates. Most notably, we detected more aggregated forms of Htt103QP in sse1Delta mutant cells using an agarose gel assay. Increased protein aggregates are also observed in these HSP mutants even in the absence Htt103QP overexpression. Importantly, these HSPs are required for autophagy-mediated Htt103QP clearance, but are less critical for proteasome dependent degradation. These findings suggest a chaperone network that facilitates inclusion body formation of misfolded proteins and the subsequent autophagic clearance. PMID- 29346422 TI - Nanoparticle effect on neutrophil produced myeloperoxidase. AB - Nanoparticles affect the immune system as they may interact directly with immune cells and activate them. However, it is possible that nanoparticles also interact with released cytokines and immunologically active enzymes. To test this hypothesis, the activity of myeloperoxidase released from activated neutrophils was measured in the presence of nanoparticles with different chemistry and size. In high concentrations of nanoparticles, myeloperoxidase activity is decreased whereas in low concentrations of nanoparticles the activity is increased. The effect of the nanoparticles on myeloperoxidase is dependent on the total protein concentration as low concentrations of bovine serum albumin together with nanoparticles further increase the myeloperoxidase activity. The results herein show that nanoparticles affect the immune response not only at the cellular level but also on released immune effectors. In particular, they show that the nanoparticle effect on myeloperoxidase activity in the neutrophil degranulation environment is the result of an intricate interplay between the enzyme and protein concentrations in the environment and the available surface area on the nanoparticle. PMID- 29346423 TI - The association of estimated salt intake with blood pressure in a Viet Nam national survey. AB - OBJECTIVE: To evaluate the association of salt consumption with blood pressure in Viet Nam, a developing country with a high level of salt consumption. DESIGN AND SETTING: Analysis of a nationally representative sample of Vietnamese adults 25 65 years of age who were surveyed using the World Health Organization STEPwise approach to Surveillance protocol. Participants who reported acute illness, pregnancy, or current use of antihypertensive medications were excluded. Daily salt consumption was estimated from fasting mid-morning spot urine samples. Associations of salt consumption with systolic blood pressure and prevalent hypertension were assessed using adjusted linear and generalized linear models. Interaction terms were tested to assess differences by age, smoking, alcohol consumption, and rural/urban status. RESULTS: The analysis included 2,333 participants (mean age: 37 years, 46% male, 33% urban). The average estimated salt consumption was 10g/day. No associations of salt consumption with blood pressure or prevalent hypertension were observed at a national scale in men or women. The associations did not differ in subgroups defined by age, smoking, or alcohol consumption; however, associations differed between urban and rural participants (p-value for interaction of urban/rural status with salt consumption, p = 0.02), suggesting that higher salt consumption may be associated with higher systolic blood pressure in urban residents but lower systolic blood pressure in rural residents. CONCLUSIONS: Although there was no evidence of an association at a national level, associations of salt consumption with blood pressure differed between urban and rural residents in Viet Nam. The reasons for this differential association are not clear, and given the large rate of rural to urban migration experienced in Viet Nam, this topic warrants further investigation. PMID- 29346424 TI - Higher sequence diversity in the vaginal tract than in blood at early HIV-1 infection. AB - In the majority of cases, human immunodeficiency virus type 1 (HIV-1) infection is transmitted through sexual intercourse. A single founder virus in the blood of the newly infected donor emerges from a genetic bottleneck, while in rarer instances multiple viruses are responsible for systemic infection. We sought to characterize the sequence diversity at early infection, between two distinct anatomical sites; the female reproductive tract vs. systemic compartment. We recruited 72 women from Uganda and Zimbabwe within seven months of HIV-1 infection. Using next generation deep sequencing, we analyzed the total genetic diversity within the C2-V3-C3 envelope region of HIV-1 isolated from the female genital tract at early infection and compared this to the diversity of HIV-1 in plasma. We then compared intra-patient viral diversity in matched cervical and blood samples with three or seven months post infection. Genetic analysis of the C2-V3-C3 region of HIV-1 env revealed that early HIV-1 isolates within blood displayed a more homogeneous genotype (mean 1.67 clones, range 1-5 clones) than clones in the female genital tract (mean 5.7 clones, range 3-10 clones) (p<0.0001). The higher env diversity observed within the genital tract compared to plasma was independent of HIV-1 subtype (A, C and D). Our analysis of early mucosal infections in women revealed high HIV-1 diversity in the vaginal tract but few transmitted clones in the blood. These novel in vivo finding suggest a possible mucosal sieve effect, leading to the establishment of a homogenous systemic infection. PMID- 29346425 TI - Hippocampal corticotropin-releasing hormone neurons support recognition memory and modulate hippocampal excitability. AB - Corticotropin-releasing hormone (CRH) signaling in the hippocampus has been established to be important for mediating the effects of stress on learning and memory. Given our laboratory's recent characterization of a subset of hippocampal CRH neurons as a novel class of GABAergic interneurons, we hypothesized that these local GABAergic hippocampal CRH neurons may influence hippocampal function. Here we applied an array of molecular tools to selectively label and manipulate hippocampal CRH neurons in mice, in order to assess this interneuron population's impact on hippocampus-dependent behaviors and hippocampal network excitability. Genetically-targeted ablation of hippocampal CRH neurons in vivo impaired object recognition memory and substantially enhanced the severity of kainic acid-induced seizures. Conversely, selective activation of CRH neurons in vitro suppressed the excitability of the mossy fiber-CA3 pathway. Additional experiments are needed to reconcile the functions of GABA and CRH signaling of hippocampal CRH neurons on hippocampal function. However, our results indicate that this interneuron population plays an important role in maintaining adaptive network excitability, and provide a specific circuit-level mechanism for this role. PMID- 29346428 TI - Revisiting facial resemblance in couples. AB - It is widely believed that couples look alike. Consistently, previous research reported higher facial similarity for couples than non-couples, and that facial similarity predicts marital satisfaction. However, it is unclear if facial similarity in couples shown in previous studies was solely driven by extrinsic features like hairstyle, glasses, etc. Also unclear is what attributes are perceived as similar from the faces of a couple. In three experiments, we showed that faces were considered more similar in couples than non-couples even without extrinsic features. Personality and age perceived from faces were also more similar in couples. Importantly, by matching pairs of faces according to their perceived personality, we found that a higher similarity in the perceived personality of a face pair led to higher facial similarity and couple likelihood ratings. These findings suggest that, instead of a result of pure physical analyses, facial similarity in couples is partly based on active social cognitive judgments on perceived personality, which may reveal the actual personality of the couples and thus inform relationship quality. PMID- 29346427 TI - Soluble factors from adipose tissue-derived mesenchymal stem cells promote canine hepatocellular carcinoma cell proliferation and invasion. AB - The potential effects of adipose tissue-derived mesenchymal stem cells (AT-MSCs) on the growth and invasion of canine tumours including hepatocellular carcinoma (HCC) are not yet understood. Moreover in humans, the functional contribution of AT-MSCs to malignancies remains controversial. The purpose of this study was to investigate the effects of AT-MSCs on the proliferation and invasion of canine HCC cells in vitro. The effect of AT-MSCs on mRNA levels of factors related to HCC progression were also evaluated. Conditioned medium from AT-MSCs (AT-MSC-CM) significantly enhanced canine HCC cell proliferation and invasion. Moreover, mRNA expression levels of transforming growth factor-beta 1, epidermal growth factor A, hepatocyte growth factor, platelet-derived growth factor-beta, vascular endothelial growth factor, and insulin-like growth factor 2 were 2.3 +/- 0.4, 2.0 +/- 0.5, 5.7 +/- 1.9, 1.7 +/- 0.2, 2.1 +/- 0.4, and 1.4 +/- 0.3 times higher, respectively (P < 0.05). The mRNA expression level of MMP-2 also increased (to 4.0 +/- 1.2 times control levels) in canine HCC cells co-cultured with AT-MSCs, but MMP-9 mRNA significantly decreased (to 0.5 +/- 0.1 times control levels). These findings suggest that soluble factors from AT-MSCs promote the proliferation and invasion of canine HCC cells. PMID- 29346426 TI - Proliferation and survival of human amniotic epithelial cells during their hepatic differentiation. AB - Stem cells derived from placental tissues are an attractive source of cells for regenerative medicine. Amniotic epithelial cells isolated from human amnion (hAECs) have desirable and competitive characteristics that make them stand out between other stem cells. They have the ability to differentiate toward all three germ layers, they are not tumorigenic and they have immunosuppressive properties. Although liver transplantation is the best way to treat acute and chronic hepatic failure patients, there are several obstacles. Recently, stem cells have been spotlighted as alternative source of hepatocytes because of their potential for hepatogenic differentiation. In this work, we aimed to study the proliferation and survival of the hAECs during their hepatic differentiation. We have also analyzed the changes in pluripotency and hepatic markers. We differentiated amniotic cells applying a specific hepatic differentiation (HD) protocol. We determined by qRT-PCR that hAECs express significant levels of SOX-2, OCT-4 and NANOG during at least 15 days in culture and these pluripotent markers diminish during HD. SSEA-4 expression was reduced during HD, measured by immunofluorescence. Morphological characteristics became more similar to hepatic ones in differentiated cells and representative hepatic markers significantly augmented their expression, measured by qRT-PCR and Western blot. Cells achieved a differentiation efficiency of 75%. We observed that HD induced proliferation and promoted survival of hAECs, during 30 days in culture, evaluated by 3H thymidine incorporation and MTT assay. HD also promoted changes in hAECs cell cycle. Cyclin D1 expression increased, while p21 and p53 levels were reduced. Immunofluorescence analysis showed that Ki-67 expression was upregulated during HD. Finally, ERK 1/2 phosphorylation, which is intimately linked to proliferation and cell survival, augmented during all HD process and the inhibition of this signaling pathway affected not only proliferation but also differentiation. Our results suggest that HD promotes proliferation and survival of hAECs, providing important evidence about the mechanisms governing their hepatic differentiation. We bring new knowledge concerning some of the optimal transplantation conditions for these hepatic like cells. PMID- 29346429 TI - The farnesoid X receptor agonist obeticholic acid upregulates biliary excretion of asymmetric dimethylarginine via MATE-1 during hepatic ischemia/reperfusion injury. AB - BACKGROUND: We previously showed that increased asymmetric dimethylarginine (ADMA) biliary excretion occurs during hepatic ischemia/reperfusion (I/R), prompting us to study the effects of the farnesoid X receptor (FXR) agonist obeticholic acid (OCA) on bile, serum and tissue levels of ADMA after I/R. MATERIAL AND METHODS: Male Wistar rats were orally administered 10mg/kg/day of OCA or vehicle for 5 days and were subjected to 60 min partial hepatic ischemia or sham-operated. After a 60 min reperfusion, serum, tissue and bile ADMA levels, liver mRNA and protein expression of ADMA transporters (CAT-1, CAT-2A, CAT-2B, OCT-1, MATE-1), and enzymes involved in ADMA synthesis (protein-arginine-N methyltransferase-1, PRMT-1) and metabolism (dimethylarginine dimethylaminohydrolase-1, DDAH-1) were measured. RESULTS: OCA administration induced a further increase in biliary ADMA levels both in sham and I/R groups, with no significant changes in hepatic ADMA content. A reduction in CAT-1, CAT-2A or CAT-2B transcripts was found in OCA-treated sham-operated rats compared with vehicle. Conversely, OCA administration did not change CAT-1, CAT-2A or CAT-2B expression, already reduced by I/R. However, a marked decrease in OCT-1 and increase in MATE-1 expression was observed. A similar trend occurred with protein expression. CONCLUSION: The reduced mRNA expression of hepatic CAT transporters suggests that the increase in serum ADMA levels is probably due to decreased liver uptake of ADMA from the systemic circulation. Conversely, the mechanism involved in further increasing biliary ADMA levels in sham and I/R groups treated with OCA appears to be MATE-1-dependent. PMID- 29346430 TI - Estimation of inhalation flow profile using audio-based methods to assess inhaler medication adherence. AB - Asthma and chronic obstructive pulmonary disease (COPD) patients are required to inhale forcefully and deeply to receive medication when using a dry powder inhaler (DPI). There is a clinical need to objectively monitor the inhalation flow profile of DPIs in order to remotely monitor patient inhalation technique. Audio-based methods have been previously employed to accurately estimate flow parameters such as the peak inspiratory flow rate of inhalations, however, these methods required multiple calibration inhalation audio recordings. In this study, an audio-based method is presented that accurately estimates inhalation flow profile using only one calibration inhalation audio recording. Twenty healthy participants were asked to perform 15 inhalations through a placebo ElliptaTM DPI at a range of inspiratory flow rates. Inhalation flow signals were recorded using a pneumotachograph spirometer while inhalation audio signals were recorded simultaneously using the Inhaler Compliance Assessment device attached to the inhaler. The acoustic (amplitude) envelope was estimated from each inhalation audio signal. Using only one recording, linear and power law regression models were employed to determine which model best described the relationship between the inhalation acoustic envelope and flow signal. Each model was then employed to estimate the flow signals of the remaining 14 inhalation audio recordings. This process repeated until each of the 15 recordings were employed to calibrate single models while testing on the remaining 14 recordings. It was observed that power law models generated the highest average flow estimation accuracy across all participants (90.89+/-0.9% for power law models and 76.63+/-2.38% for linear models). The method also generated sufficient accuracy in estimating inhalation parameters such as peak inspiratory flow rate and inspiratory capacity within the presence of noise. Estimating inhaler inhalation flow profiles using audio based methods may be clinically beneficial for inhaler technique training and the remote monitoring of patient adherence. PMID- 29346431 TI - Sensitivity and specificity of two dried blood spot methods for HIV-1 viral load monitoring among patients in Hanoi, Vietnam. AB - The use of dried blood spot (DBS) specimens for HIV viral load (VL) monitoring is recommended to support the roll-out of routine VL monitoring in low and middle income countries (LMICs). To better understand the use of DBS for VL monitoring, we evaluated two DBS testing methods, Roche TaqMan(r) Free Virus Evolution protocol (DBS-FVE) and Roche TaqMan(r) SPEX protocol (DBS-SPEX)) in patients receiving ART at an HIV clinic in Hanoi, Vietnam. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) were calculated for each DBS testing method at the thresholds of 1000 and 5000 copies/ml compared to plasma VL. At a threshold of 1000 copies/ml, sensitivity, specificity, PPV and NPV of the DBS-SPEX method were 98.8% (95% CI: 93.3%-100%), 74.3% (95% CI: 70.8%-77.5%), 31.5% (95% CI: 25.8%-37.6%), and 99.8% (95% CI: 98.9%-100%), respectively. Increasing the VL threshold value to 5000 copies/ml improved specificity (97.9% CI: 96.6%-98.9%) and PPV (83.9% CI: 74.5%-90.9%). Using the DBS-FVE method, at the threshold of 1000 copies/ml and with a correction factor of +0.3 log copies/ml, sensitivity was 95.1% (87.8%-98.6%) and specificity was 98.8% (97.7%-99.5%). Sensitivity decreased at the threshold of 5000 copies/ml (65.8%, 95% CI: 54.3%-76.1%). With a correction factor of +0.7 log copies/ml, the sensitivity was 96.3% (89.6%-99.2%) and specificity was 98.2% (96.9%-99.1%) at the threshold of 1000 copies/ml. We found that the Roche DBS-FVE method, with a +0.7 log copies/ml correction factor, performed well with sensitivity and specificity greater than 96% at a VL threshold of 1000 copies/m. These findings add to the growing body of evidence supporting the use of DBS VL testing for ART monitoring. Future research should evaluate the association between VL results by DBS and clinical outcome measures such as HIV drug resistance, morbidity, and mortality. PMID- 29346432 TI - Retraction: Virulent Diuraphis noxia Aphids Over-Express Calcium Signaling Proteins to Overcome Defenses of Aphid-Resistant Wheat Plants. PMID- 29346433 TI - Vault RNAs partially induces drug resistance of human tumor cells MCF-7 by binding to the RNA/DNA-binding protein PSF and inducing oncogene GAGE6. AB - BACKGROUND: Vault is the largest nonicosahedral cytosolic nucleoprotein particle, which is widely involved in induction of chemoresistance and lead to failure in long-term chemotherapy. Vault contains three different major vault proteins (MVPs) and four vault RNAs paralogues (vtRNAs, vtRNA1-1, vtRNA1-2, vtRNA1-3 and vtRNA2-1). Disruption of the MVPs do not induce hypersensitivity while expression of vtRNAs contributes to cells' drug resistance, indicates that vtRNAs, but not MVPs play an important role in causing drug resistance. Polypyrimidine tract binding protein associated splicing factor (PSF) contributes to cell sensitivity to chemotherapy by its transcriptional activity, promotes us to figure out its potential association with vtRNAs. METHODS: We investigate the interaction between PSF and vtRNAs by electrophoretic mobility shift assays (EMSA) and RNA immunoprecipitation (IP), and showed the binding between PSF and vtRNAs. Chromatin Immunoprecipitation (ChIP) was performed to detect the effects of vtRNAs on the interaction of PSF with GAGE6 promoter. The role of vtRNAs on chemoresistance in MCF-7 was detected by CCK-8 and EdU staining. The independent role of vtRNAs with MVP is detected by MVP or vtRNAs knockdown. RESULTS: The complex with vtRNA1-1 releases PSF, allowing transcription of GAGE6 to proceed. Then we showed that induction of GAGE6 caused drug resistance by promoting cell proliferation and colony formation in soft agar. Ectopic expression of shRNA targets to vtRNA1-1 further confirmed the role of vtRNA1-1 in regulating PSF transcriptional activity independent with the expression of MVP. By vtRNA1-1 or MVP knockdown, it is revealed that vtRNA1-1 caused chemoresistance independent of MVP. Furthermore, knockdown of GAGE6 does not cause drug resistance, indicates the GAGE6 is directly involved in cell proliferation, but not the drug resistance. CONCLUSION: These results suggest that vtRNAs regulates cell proliferation, drug resistance, and possibly other physiological processes of humans, by complex formation with PSF. PMID- 29346434 TI - Cognitive distortions and gambling near-misses in Internet Gaming Disorder: A preliminary study. AB - Increased cognitive distortions (i.e. biased processing of chance, probability and skill) are a key psychopathological process in disordered gambling. The present study investigated state and trait aspects of cognitive distortions in 22 individuals with Internet Gaming Disorder (IGD) and 22 healthy controls. Participants completed the Gambling Related Cognitions Scale as a trait measure of cognitive distortions, and played a slot machine task delivering wins, near misses and full-misses. Ratings of pleasure ("liking") and motivation to play ("wanting") were taken following the different outcomes, and gambling persistence was measured after a mandatory phase. IGD was associated with elevated trait cognitive distortions, in particular skill-oriented cognitions. On the slot machine task, the IGD group showed increased "wanting" ratings compared with control participants, while the two groups did not differ regarding their "liking" of the game. The IGD group displayed increased persistence on the slot machine task. Near-miss outcomes did not elicit stronger motivation to play compared to full-miss outcomes overall, and there was no group difference on this measure. However, a near-miss position effect was observed, such that near-misses stopping before the payline were rated as more motivating than near-misses that stopped after the payline, and this differentiation was attenuated in the IGD group, suggesting possible counterfactual thinking deficits in this group. These data provide preliminary evidence for increased incentive motivation and cognitive distortions in IGD, at least in the context of a chance-based gambling environment. PMID- 29346435 TI - Influenza A virus hemagglutinin glycosylation compensates for antibody escape fitness costs. AB - Rapid antigenic evolution enables the persistence of seasonal influenza A and B viruses in human populations despite widespread herd immunity. Understanding viral mechanisms that enable antigenic evolution is critical for designing durable vaccines and therapeutics. Here, we utilize the primerID method of error correcting viral population sequencing to reveal an unexpected role for hemagglutinin (HA) glycosylation in compensating for fitness defects resulting from escape from anti-HA neutralizing antibodies. Antibody-free propagation following antigenic escape rapidly selected viruses with mutations that modulated receptor binding avidity through the addition of N-linked glycans to the HA globular domain. These findings expand our understanding of the viral mechanisms that maintain fitness during antigenic evolution to include glycan addition, and highlight the immense power of high-definition virus population sequencing to reveal novel viral adaptive mechanisms. PMID- 29346436 TI - Bone marrow concentrate promotes bone regeneration with a suboptimal-dose of rhBMP-2. AB - Bone marrow concentrate (BMC), which is enriched in mononuclear cells (MNCs) and platelets, has recently attracted the attention of clinicians as a new optional means for bone engineering. We previously reported that the osteoinductive effect of bone morphogenetic protein-2 (BMP-2) could be enhanced synergistically by co transplantation of peripheral blood (PB)-derived platelet-rich plasma (PRP). This study aims to investigate whether BMC can effectively promote bone formation induced by low-dose BMP-2, thereby reducing the undesirable side-effects of BMP 2, compared to PRP. Human BMC was obtained from bone marrow aspirates using an automated blood separator. The BMC was then seeded onto beta-TCP granules pre adsorbed with a suboptimal-dose (minimum concentration to induce bone formation at 2 weeks in mice) of recombinant human (rh) BMP-2. These specimens were transplanted subcutaneously to the dorsal skin of immunodeficient-mice and the induction of ectopic bone formation was assessed 2 and 4 weeks post transplantation. Transplantations of five other groups [PB, PRP, platelet-poor plasma (PPP), bone marrow aspirate (BM), and BM-PPP] were employed as experimental controls. Then, to clarify the effects on vertical bone augmentation, specimens from the six groups were transplanted for on-lay placement on the craniums of mice. The results indicated that BMC, which contained an approximately 2.5-fold increase in the number of MNCs compared to PRP, could accelerate ectopic bone formation until 2 weeks post-transplantation. On the cranium, the BMC group promoted bone augmentation with a suboptimal-dose of rhBMP-2 compared to other groups. Particularly in the BMC specimens harvested at 4 weeks, we observed newly formed bone surrounding the TCP granules at sites far from the calvarial bone. In conclusion, the addition of BMC could reduce the amount of rhBMP-2 by one-half via its synergistic effect on early-phase osteoinduction. We propose here that BMC transplantation facilitates the clinical use of rhBMP-2 as an alternative strategy for bone engineering. PMID- 29346437 TI - Tissue-specific transcriptome analyses provide new insights into GPCR signalling in adult Schistosoma mansoni. AB - Schistosomes are blood-dwelling trematodes with global impact on human and animal health. Because medical treatment is currently based on a single drug, praziquantel, there is urgent need for the development of alternative control strategies. The Schistosoma mansoni genome project provides a platform to study and connect the genetic repertoire of schistosomes to specific biological functions essential for successful parasitism. G protein-coupled receptors (GPCRs) form the largest superfamily of transmembrane receptors throughout the Eumetazoan phyla, including platyhelminths. Due to their involvement in diverse biological processes, their pharmacological importance, and proven druggability, GPCRs are promising targets for new anthelmintics. However, to identify candidate receptors, a more detailed understanding of the roles of GPCR signalling in schistosome biology is essential. An updated phylogenetic analysis of the S. mansoni GPCR genome (GPCRome) is presented, facilitated by updated genome data that allowed a more precise annotation of GPCRs. Additionally, we review the current knowledge on GPCR signalling in this parasite and provide new insights into the potential roles of GPCRs in schistosome reproduction based on the findings of a recent tissue-specific transcriptomic study in paired and unpaired S. mansoni. According to the current analysis, GPCRs contribute to gonad-specific functions but also to nongonad, pairing-dependent processes. The latter may regulate gonad-unrelated functions during the multifaceted male-female interaction. Finally, we compare the schistosome GPCRome to that of another parasitic trematode, Fasciola, and discuss the importance of GPCRs to basic and applied research. Phylogenetic analyses display GPCR diversity in free-living and parasitic platyhelminths and suggest diverse functions in schistosomes. Although their roles need to be substantiated by functional studies in the future, the data support the selection of GPCR candidates for basic and applied studies, invigorating the exploitation of this important receptor class for drug discovery against schistosomes but also other trematodes. PMID- 29346438 TI - Colonization of the cervicovaginal space with Gardnerella vaginalis leads to local inflammation and cervical remodeling in pregnant mice. AB - The role of the cervicovaginal (CV) microbiome in regulating cervical function during pregnancy is poorly understood. Gardnerella vaginalis (G. vaginalis) is the most common bacteria associated with the diagnosis of bacterial vaginosis (BV). While BV has been associated with preterm birth (PTB), clinical trials targeting BV do not decrease PTB rates. It remains unknown if G. vaginalis is capable of triggering molecular, biomechanical and cellular events that could lead to PTB. The objective of this study was to determine if cervicovaginal colonization with G. vaginalis, in pregnant mice, induced cervical remodeling and modified cervical function. CD-1 timed-pregnant mice received a 5X108 CFU/mL intravaginal inoculation of G. vaginalis or control on embryonic day 12 (E12) and E13. On E15, the mice were sacrificed and cervicovaginal fluid (CVF), amniotic fluid (AF), cervix, uterus, placentas and fetal membranes (FM) were collected. Genomic DNA was isolated from the CVF, placenta, uterus and FM and QPCR was performed to confirm colonization. IL-6 was measured in the CVF and AF and soluble e-cadherin (seCAD) was assessed in the CVF by ELISA. RNA was extracted from the cervices to evaluate IL-10, IL-8, IL-1beta, TNF-alpha, Tff-1, SPINK-5, HAS-1 and LOX expression via QPCR. Mucicarmine and trichrome staining was used to assess cervical mucin and collagen. Biomechanical properties of the cervix were studied using quasi-static tensile load-to-failure biomechanical tests. G. vaginalis successfully colonized the CV space. This colonization induced immune responses (increased IL-6 levels in CVF and AF, increased mRNA expression of cervical cytokines), altered the epithelial barrier (increased seCAD in the CVF), induced cervical remodeling (increased mucin production, altered collagen) and altered cervical biomechanical properties (a decrease in biomechanical modulus and an increase in maximum strain). The ability of G. vaginalis to induce these molecular, immune, cellular and biomechanical changes suggests that this bacterium may play a pathogenic role in premature cervical remodeling leading to PTB. PMID- 29346439 TI - Interspecies diversity of chloride channel regulators, calcium-activated 3 genes. AB - Members of the chloride channel regulators, calcium-activated (CLCA) family, have been implicated in diverse biomedical conditions, including chronic inflammatory airway diseases such as asthma, chronic obstructive pulmonary disease, and cystic fibrosis, the activation of macrophages, and the growth and metastatic spread of tumor cells. Several observations, however, could not be repeated across species boundaries and increasing evidence suggests that select CLCA genes are particularly prone to dynamic species-specific evolvements. Here, we systematically characterized structural and expressional differences of the CLCA3 gene across mammalian species, revealing a spectrum of gene duplications, e.g., in mice and cows, and of gene silencing via diverse chromosomal modifications in pigs and many primates, including humans. In contrast, expression of a canonical CLCA3 protein from a single functional gene seems to be evolutionarily retained in carnivores, rabbits, guinea pigs, and horses. As an accepted asthma model, we chose the cat to establish the tissue and cellular expression pattern of the CLCA3 protein which was primarily found in mucin-producing cells of the respiratory tract and in stratified epithelia of the esophagus. Our results suggest that, among developmental differences in other CLCA genes, the CLCA3 gene possesses a particularly high dynamic evolutionary diversity with pivotal consequences for humans and other primates that seem to lack a CLCA3 protein. Our data also help to explain previous contradictory results on CLCA3 obtained from different species and warrant caution in extrapolating data from animal models in conditions where CLCA3 may be involved. PMID- 29346440 TI - Geographical distribution of soil transmitted helminths and the effects of community type in South Asia and South East Asia - A systematic review. AB - BACKGROUND: Soil-transmitted helminth (STH) infections are among the most prevalent neglected tropical diseases (NTD) worldwide. Since the publication of the WHO road map to combat NTD in 2012, there has been a renewed commitment to control STH. In this study, we analysed the geographical distribution and effect of community type on prevalence of hookworm, Trichuris and Ascaris in south Asia and south east Asia. METHODOLOGY: We conducted a systematic review of open-access literature published in PubMed Central and the Global Atlas of Helminth Infection. A total of 4182 articles were available and after applying selection criteria, 174 studies from the region were retained for analysis. PRINCIPAL FINDINGS: Ascaris was the commonest STH identified with an overall prevalence of 18% (95% CI, 14-23%) followed by Trichuris (14%, 9-19%) and hookworm (12%, 9 15%). Hookworm prevalence was highest in Laos, Vietnam and Cambodia. We found a geographical overlap in countries with high prevalence rates for Trichuris and Ascaris (Malaysia, Philippines, Myanmar, Vietnam and Bangladesh). When the effect of community type was examined, prevalence rates of hookworm was comparable in rural (19%, 14-24%) and tribal communities (14%, 10-19%). Tribal communities, however, showed higher prevalence of Trichuris (38%, 18-63%) and Ascaris (32%, 23 43%) than rural communities (13%, 9-20% and 14%, 9-20% respectively). Considerable between and within country heterogeneity in the distribution of STH (I2 >90%) was also noted. When available data from school aged children (SAC) were analysed, prevalence of Ascaris (25% 16-31%) and Trichuris (22%, 14-34%) were higher than among the general population while that of hookworm (10%, 7-16%) was comparable. CONCLUSIONS/SIGNIFICANCE: Our analysis showed significant variation in prevalence rates between and within countries in the region. Highlighting the importance of community type in prevalence and species mix, we showed that tribal and rural communities had higher hookworm infections than urban communities and for ascariasis and trichuriasis, tribal populations had higher levels of infection than rural populations. We also found a higher prevalence of ascariasis and trichuriasis in SAC compared to the general population but comparable levels of hookworm infections. These key findings need to be taken into account in planning future MDA and other interventions. PMID- 29346441 TI - A portable system for processing donated whole blood into high quality components without centrifugation. AB - BACKGROUND: The use of centrifugation-based approaches for processing donated blood into components is routine in the industrialized world, as disparate storage conditions require the rapid separation of 'whole blood' into distinct red blood cell (RBC), platelet, and plasma products. However, the logistical complications and potential cellular damage associated with centrifugation/apheresis manufacturing of blood products are well documented. The objective of this study was to evaluate a proof-of-concept system for whole blood processing, which does not employ electromechanical parts, is easily portable, and can be operated immediately after donation with minimal human labor. METHODS AND FINDINGS: In a split-unit study (n = 6), full (~500mL) units of freshly donated whole blood were divided, with one half processed by conventional centrifugation techniques and the other with the new blood separation system. Each of these processes took 2-3 hours to complete and were performed in parallel. Blood products generated by the two approaches were compared using an extensive panel of cellular and plasma quality metrics. Comparison of nearly all RBC parameters showed no significant differences between the two approaches, although the portable system generated RBC units with a slight but statistically significant improvement in 2,3-diphosphoglyceric acid concentration (p < 0.05). More notably, several markers of platelet damage were significantly and meaningfully higher in products generated with conventional centrifugation: the increase in platelet activation (assessed via P-selectin expression in platelets before and after blood processing) was nearly 4-fold higher for platelet units produced via centrifugation, and the release of pro-inflammatory mediators (soluble CD40-ligand, thromboxane B2) was significantly higher for centrifuged platelets as well (p < 0.01). CONCLUSION: This study demonstrated that a simple, passive system for separating donated blood into components may be a viable alternative to centrifugation-particularly for applications in remote or resource limited settings, or for patients requiring highly functional platelet product. PMID- 29346442 TI - Comparative metabolic ecology of tropical herbivorous echinoids on a coral reef. AB - BACKGROUND: The metabolic rate of consumers is a key driver of ecosystem dynamics. On coral reefs, herbivorous echinoids consume fleshy algae, facilitating the growth of reef-building calcified organisms; however, little is known about differences among species in their metabolic and functional ecology. Here, we used log-linear (log-log) regression models to examine the allometric scaling of mass and routine metabolic rate for five common herbivorous echinoids on a Hawaiian coral reef: Echinothrix calamaris, E. diadema, Echinometra matthaei, Heterocentrotus mammillatus, and Tripneustes gratilla. Scaling relationships were then contrasted with empirical observations of echinoid ecology and general metabolic theory to broaden our understanding of diversity in the metabolic and functional ecology of tropical herbivorous echinoids. RESULTS: Test diameter and species explained 98% of the variation in mass, and mass and species explained 92.4% and 87.5% of the variation in individual (I) and mass specific (B) metabolic rates, respectively. Scaling exponents did not differ for mass or metabolism; however, normalizing constants differed significantly among species. Mass varied as the cube of test diameter (b = 2.9), with HM exhibiting a significantly higher normalizing constant than other species, likely due to its heavily-calcified spines and skeleton. Individual metabolic rate varied approximately as the 2/5 power of mass (gamma = 0.44); significantly smaller than the 3/4 universal scaling coefficient, but inclusive of 2/3 scaling. E. calamaris and H. mammillatus exhibited the lowest normalizing constants, corresponding with their slow-moving, cryptic, rock-boring life-history. In contrast, E. calamaris, E. diadema, and T. gratilla, exhibited higher metabolic rates, likely reflecting their higher levels of activity and ability to freely browse for preferred algae due to chemical anti-predator defenses. Thus, differences in metabolic scaling appeared to correspond with differences in phylogeny, behavior, and ecological function. Such comparative metabolic assessments are central to informing theory, ecological models, and the effective management of ecosystems. PMID- 29346443 TI - Exposure to previous cART is associated with significant liver fibrosis and cirrhosis in human immunodeficiency virus-infected patients. AB - INTRODUCTION: Combined antiretroviral therapy (cART) has improved survival in HIV patients. While the first antiretrovirals, which became available in particular D drugs (especially didanosine and stavudine) and unboosted protease inhibitors, may impair liver function, the modern cART seems to decrease liver fibrosis. This study assessed the influence of exposure to previous antiretrovirals on liver fibrosis in HIV-infected patients. METHODS: This observational cross-sectional single-center study recruited 333 HIV patients and assessed liver fibrosis using transient elastography (TE). RESULTS: 83% were male with a median age of 45, while 131 were co-infected with viral hepatitis. Overall, 18% had significant fibrosis and 7.5% had cirrhosis. 11% of HIV mono-infected patients had significant fibrosis and 2% had cirrhosis. HCV infection (OR:5.3), history of exposure to didanosine (OR:2.7) and HIV load below 40copies/mL (OR:0.5) were independently associated with significant fibrosis, while HCV (OR:5.8), exposure to didanosine (OR:2.9) and azidothymidine (OR:2.8) were independently associated with cirrhosis. Interestingly, in HIV mono-infected patients, a HIV-load below 40copies/mL (OR:0.4) was independently associated with significant fibrosis, and didanosine (OR:20.8) with cirrhosis. CONCLUSION: In conclusion, history of exposure to didanosine and azidothymidine continues to have an impact on the presence of liver cirrhosis in HIV patients. However, HCV co-infection and ongoing HIV-replication have the strongest effect on development of significant fibrosis in these patients. PMID- 29346444 TI - Social and structural barriers for adherence to methadone maintenance treatment among Vietnamese opioid dependence patients. AB - INTRODUCTION: Methadone maintenance treatment (MMT) services may reduce the risk of HIV transmission if patients completely adhere to the treatment. Identifying adherence patterns and potential related factors is vital for the sustainability of MMT program in Vietnam. This study examined social and structural factors associated with adherence to MMT among patients in different service delivery models. MATERIALS AND METHODS: A total of 510 patients at three MMT clinics in Hanoi were interviewed. Measures of self-reported adherence included the number of missed doses in the past 7 days and the level of adherence in the past 30 days using a visual analog scale (VAS) scoring from 0 (non-adherence) to 100 (perfect adherence). Multivariate regressions were employed to identify factors associated with non-adherence to MMT. RESULTS: A total of 17.7% of participants reported incomplete MMT adherence in the last 30 days and 8.3% reported missing a dose in the last seven days, respectively. Living with HIV/AIDS, poor self-care and usual activities, and disclosure of health issues to spouses or intimate partners were associated with non-adherence. Those patients with pain or depression were more likely to report better adherence. Disclosing health status to spouse/partner increased the risk of incomplete adherence, while disclosing to friends reduced the number of missed dose in the last seven days. Patients attending clinics with comprehensive services had a lower VAS score of adherence compared to those enrolling in clinics with only MMT and general health care. CONCLUSIONS: Sustaining the compliance of patients to MMT is principal in the rapid expansion of this service in Vietnam. It is necessary to address the complexity of health care demands of drug users, their difficulties to be rehabilitated into workforce and society, and the stigmatization to maximize the outcomes of MMT program. PMID- 29346445 TI - Transcriptome analysis of skin fibroblasts with dominant negative COL3A1 mutations provides molecular insights into the etiopathology of vascular Ehlers Danlos syndrome. AB - Vascular Ehlers-Danlos syndrome (vEDS) is a dominantly inherited connective tissue disorder caused by mutations in the COL3A1 gene that encodes type III collagen (COLLIII), which is the major expressed collagen in blood vessels and hollow organs. The majority of disease-causing variants in COL3A1 are glycine substitutions and in-frame splice mutations in the triple helix domain that through a dominant negative effect are associated with the severe clinical spectrum potentially lethal of vEDS, characterized by fragility of soft connective tissues with arterial and organ ruptures. To shed lights into molecular mechanisms underlying vEDS, we performed gene expression profiling in cultured skin fibroblasts from three patients with different structural COL3A1 mutations. Transcriptome analysis revealed significant changes in the expression levels of several genes involved in maintenance of cell redox and endoplasmic reticulum (ER) homeostasis, COLLs folding and extracellular matrix (ECM) organization, formation of the proteasome complex, and cell cycle regulation. Protein analyses showed that aberrant COLLIII expression is associated with the disassembly of many structural ECM constituents, such as fibrillins, EMILINs, and elastin, as well as with the reduction of the proteoglycans perlecan, decorin, and versican, all playing an important role in the vascular system. Furthermore, the altered distribution of the ER marker protein disulfide isomerase PDI and the strong reduction of the COLLs-modifying enzyme FKBP22 are consistent with the disturbance of ER-related homeostasis and COLLs biosynthesis and post translational modifications, indicated by microarray analysis. Our findings add new insights into the pathophysiology of this severe vascular disorder, since they provide a picture of the gene expression changes in vEDS skin fibroblasts and highlight that dominant negative mutations in COL3A1 also affect post translational modifications and deposition into the ECM of several structural proteins crucial to the integrity of soft connective tissues. PMID- 29346446 TI - Osteopontin (OPN) as a CSF and blood biomarker for multiple sclerosis: A systematic review and meta-analysis. AB - Identifying a reliable biomarker may accelerate diagnosis of multiple sclerosis (MS) and lead to early management of the disease. Accumulating evidence suggest that cerebrospinal fluid (CSF) and peripheral blood concentration of osteopontin (OPN) may have diagnostic and prognostic value in MS. We conducted a systematic review and meta-analysis of studies that measured peripheral blood and CSF levels of OPN in MS patients and controls to evaluate the diagnostic potential of this biomarker better. We searched PubMed, Web of Science and Scopus databases to find articles that measured OPN concentration in peripheral blood and CSF samples from MS patients up to October 19, 2016. Q statistic tests and the I2 index were applied for heterogeneity assessment. If the I2 index was less than 40%, the fixed-effects model was used for meta-analysis. Random-effects meta-analysis was chosen if the I2 value was greater than 40%. After removal of duplicates, 918 articles were identified, and 27 of them fulfilled the inclusion criteria. We included 22 eligible studies in the final meta-analysis. MS patients, in general, had considerably higher levels of OPN in their CSF and blood when compared to all types of controls (p<0.05). When the comparisons were made between different subtypes of MS patients and controls, the results pointed to significantly higher levels of OPN in CSF of MS subgroups (p<0.05). All subtypes of MS patients, except CIS patients, had increased blood levels of OPN compared to controls (p<0.05). In the second set of meta-analyses, we compared the peripheral blood and CSF concentrations of OPN between MS patient subtypes. CIS patients had significantly lower levels of OPN both in their peripheral blood and CSF compared to patients with progressive subtypes of MS (p<0.05). CSF concentration of OPN was significantly higher among RRMS patients compared to the CIS patients and SPMS patients (P<0.05). Finally, patients with active MS had significantly higher OPN levels in their CSF compared to patients with stable disease (P = 0.007). The result of this study confirms that increased levels of OPN exist in CSF and peripheral blood of MS patients and strengthens the evidence regarding the clinical utility of OPN as a promising and validated biomarker for MS. PMID- 29346447 TI - Pik3ca is required for mouse uterine gland development and pregnancy. AB - The PI3K/AKT signaling pathway plays a critical role in the maintenance of equilibrium between cell survival and apoptosis. The Pik3ca gene is mutated in a range of human cancers. It has been found to be oncogenic, and mutations lead to constitutive activation of the PI3K/AKT pathway. The expression patterns of PIK3CA proteins in the uterus of mice during early pregnancy indicate that it may play a role in the regulation of glandular epithelial cells, which is required to support uterine receptivity. To further investigate the role of Pik3ca in uterine function, Pik3ca was conditionally ablated only in the PGR-positive cells (Pgrcre/+Pik3caf/f; Pik3cad/d). A defect of uterine gland development and decidualization led to subfertility observed in Pik3cad/d mice. Pik3cad/d mice showed significantly decreased uterine weight compared to Pik3caf/f mice. Interestingly, a significant decrease of gland numbers were detected in Pik3cad/d mice compared to control mice. In addition, we found a decrease of Foxa2 expression, which is a known uterine gland marker in Pik3cad/d mice. Furthermore, the excessive proliferation of endometrial epithelial cells was observed in Pik3cad/d mice. Our studies suggest that Pik3ca has a critical role in uterine gland development and female fertility. PMID- 29346449 TI - Within host selection for faster replicating bacterial symbionts. AB - Wolbachia is a widespread, intracellular symbiont of arthropods, able to induce reproductive distortions and antiviral protection in insects. Wolbachia can also be pathogenic, as is the case with wMelPop, a virulent variant of the endosymbiont of Drosophila melanogaster. An extensive genomic amplification of the 20kb region encompassing eight Wolbachia genes, called Octomom, is responsible for wMelPop virulence. The Octomom copy number in wMelPop can be highly variable between individual D. melanogaster flies, even when comparing siblings arising from a single female. Moreover, Octomom copy number can change rapidly between generations. These data suggest an intra-host variability in Octomom copy number between Wolbachia cells. Since wMelPop Wolbachia with different Octomom copy numbers grow at different rates, we hypothesized that selection could act on this intra-host variability. Here we tested if total Octomom copy number changes during the lifespan of individual Drosophila hosts, revealing selection for different Wolbachia populations. We performed a time course analysis of Octomom amplification in flies whose mothers were controlled for Octomom copy number. We show that despite the Octomom copy number being relatively stable it increases slightly throughout D. melanogaster adult life. This indicates that there is selection acting on the intra-host variation in the Octomom copy number over the lifespan of individual hosts. This within host selection for faster replicating bacterial symbionts may be in conflict with between host selection against highly pathogenic Wolbachia. PMID- 29346448 TI - A cross-sectional study to estimate prevalence of periodontal disease in a population of dogs (Canis familiaris) in commercial breeding facilities in Indiana and Illinois. AB - The objectives of this cross-sectional study were: 1) to estimate the prevalence and characterize the severity of periodontal disease in a population of dogs housed in commercial breeding facilities; 2) to characterize PD preventive care utilized by facility owners; and 3) to assess inter-rater reliability of a visual scoring assessment tool. Adult dogs (N = 445) representing 42 breeds at 24 CB facilities in Indiana and Illinois were assessed. Periodontal disease was scored visually using the American Veterinary Dental Collage 0-IV scale. Inter-rater reliability was assessed on 198 dogs and facility owners were asked to provide information about the preventive care utilized. The overall prevalence of periodontal disease (Grades I-IV) was 86.3% (95% CI: 82.9, 89.3). An ordered logistic regression analysis found age (OR = 1.4; 95% CI 1.24, 1.54; P<0.0001), facility (OR = 1.13; 95% CI 1.09, 1.18; P<0.0001), sex (OR = 1.7; 95% CI 1.12, 2.65; P = 0.013), and non-professional dental scaling (OR = 2.82; 95% CI 1.34, 5.91; P = 0.006) to be statistically significant. Inter-rater reliability analysis found agreement to be 86.2%, with a weighted kappa of 0.4731 (95% CI 0.3847, 0.5615) indicating moderate agreement. Risk of periodontal disease increased with increasing age. Additionally, a trend toward decreasing risk with increasing weight was also found, although it was not statistically significant. The trends identified agree with studies that have evaluated periodontal disease in the companion dog population and do not support the assumption that the dental health of dogs in commercial breeding facilities is worse than that of the population as a whole. Although there were few cases of severe periodontal disease and all facilities employed some type of preventive care in this sample, the large number of dogs with some degree of disease (Grades I-IV) suggests that further investigation of preventive care is warranted. PMID- 29346450 TI - Cloning and spatiotemporal expression of Xenopus laevis Apolipoprotein CI. AB - Apolipoprotein CI (ApoCI) belongs to the Apolipoprotein superfamily, members of which are involved in lipid transport, uptake and homeostasis. Excessive ApoCI has been implicated in atherosclerosis and Alzheimer's disease in humans. In this study we report the isolation of Xenopus laevis apoCI and describe the expression pattern of this gene during early development, using reverse transcription polymerase chain reaction and whole mount in situ hybridization. Xenopus apoCI is enriched in the dorsal ectoderm during gastrulation, and is subsequently expressed in sensory placodes, neural tube and cranial neural crest. These data suggest as yet uncharacterized roles for ApoCI during early vertebrate embryogenesis. PMID- 29346451 TI - An approach for predicting the compressive strength of cement-based materials exposed to sulfate attack. AB - In this paper, a support vector machine (SVM) model which can be used to predict the compressive strength of mortars exposed to sulfate attack was established. An accelerated corrosion test was applied to collect compressive strength data. For predicting the compressive strength of mortars, a total of 638 data samples obtained from experiment was chosen as a dataset to establish a SVM model. The values of the coefficient of determination, the mean absolute error, the mean absolute percentage error and the root mean square error were used for evaluating the predictive accuracy. The main factors affecting the predicted compressive strength were obtained by sensitivity analysis. A SVM model was calibrated, validated, and finally established. Moreover, the performance of the SVM model was compared to an artificial neural network (ANN) model. Results show that the prediction values from the SVM model were close to the experimental values; the main factors sensitive to concrete compressive strength were exposure time, water cement ratio and sulfate ions; the performance of the SVM model was better than the ANN model. The SVM model developed in this study can be potentially used for predicting the compressive strength of cement-based materials servicing in harsh environments. PMID- 29346452 TI - Body shape indices are predictors for estimating fat-free mass in male athletes. AB - It is unknown whether body size and body shape parameters can be predictors for estimating whole body fat-free mass (FFM) in male athletes. This study aimed to investigate whether body size and shape variables can be predictors for FFM in male athletes. Using a whole-body dual-energy X-ray absorptiometry scanner, whole body fat mass (FM) and FFM were determined in 132 male athletes and 14 sedentary males. The sample was divided into two groups: validation (N = 98) and cross validation (N = 48) groups. Body height (BH), body mass (BM), and waist circumference at immediately above the iliac crest (W) were measured. BM-to-W and W-to-BH ratios were calculated as indices of body shapes. Stepwise multiple regression analysis revealed that BM/W and W/BH were selected as explainable variables for predicting FFM. The equation developed in the validation group was FFM (kg) = 0.883 * BM/W (kg/m) + 43.674 * W/BH (cm/cm)- 41.480 [R2 = 0.900, SEE (%SEE) = 2.3 kg (3.8%)], which was validated in the cross-validation group. Thus, the current results demonstrate that an equation using BM/W and W/BH as independent variables is applicable for predicting FFM in male athletes. PMID- 29346453 TI - Yearly fluctuations of flower landscape in a Mediterranean scrubland: Consequences for floral resource availability. AB - Species flower production and flowering phenology vary from year to year due to extrinsic factors. Inter-annual variability in flowering patterns may have important consequences for attractiveness to pollinators, and ultimately, plant reproductive output. To understand the consequences of flowering pattern variability, a community approach is necessary because pollinator flower choice is highly dependent on flower context. Our objectives were: 1) To quantify yearly variability in flower density and phenology; 2) To evaluate whether changes in flowering patterns result in significant changes in pollen/nectar composition. We monitored weekly flowering patterns in a Mediterranean scrubland community (23 species) over 8 years. Floral resource availability was estimated based on field measures of pollen and nectar production per flower. We analysed inter-annual variation in flowering phenology (duration and date of peak bloom) and flower production, and inter-annual and monthly variability in flower, pollen and nectar species composition. We also investigated potential phylogenetic effects on inter annual variability of flowering patterns. We found dramatic variation in yearly flower production both at the species and community levels. There was also substantial variation in flowering phenology. Importantly, yearly fluctuations were far from synchronous across species, and resulted in significant changes in floral resources availability and composition at the community level. Changes were especially pronounced late in the season, at a time when flowers are scarce and pollinator visitation rates are particularly high. We discuss the consequences of our findings for pollinator visitation and plant reproductive success in the current scenario of climate change. PMID- 29346454 TI - More Unified Analysis of Medical Imaging System SNR Characteristics. AB - The ideal observer signal-to-noise ratio has been derived from statistical decision theory for all of the major medical imaging modalities. This yields an absolute scale for image performance assessment and instrumentation design and optimization. Applications include: the functional dependence of detectable detail size on exposure or imaging time; a framework for comparing data acquisition techniques, e.g., Fourier methods vs reconstruction from projections in NMR imaging; calculations of realizable limits, e.g., the limiting gain of time-of-flight PET scanning. Measurements on human observers show that they can come close to ideal performance, except when the noise has negative correlations as in images reconstructed from projections. In this latter case they suffer a small but significant penalty. PMID- 29346455 TI - Response: Concerns with conclusions in the article by Sherwood et al 'Key differences between 13 KRAS mutation detection technologies and their relevance for clinical practice'. PMID- 29346467 TI - Modification of the Associations Between Duration of Oral Contraceptive Use and Ovarian, Endometrial, Breast, and Colorectal Cancers. AB - Importance: Although oral contraceptive (OC) use is common, the influence of OC use on carcinogenesis is not fully understood. A recent Agency for Healthcare Research and Quality report identified a need to understand the consistency of OC use and cancer associations across subpopulations, including smokers and obese women. Objective: To determine whether associations between duration of OC use and risk of specific cancers were modified by lifestyle characteristics. Design, Setting, and Participants: The prospective NIH-AARP Diet and Health Study (enrolled 1995-1996, followed until 2011), with population-based recruitment of AARP members in 6 states and 2 metropolitan areas. All analyses included at least 100 000 women who reported OC use at enrollment. We identified 1241 ovarian, 2337 endometrial, 11 114 breast, and 3507 colorectal cancer cases during follow-up. Data analysis was performed between September 2016 and April 2017. Exposures: Duration of OC use (never or <1 year [reference], 1-4, 5-9, or >=10 years). Main Outcomes and Measures: Development of ovarian, endometrial, breast, and colorectal cancers. We examined effect modification by modifiable lifestyle characteristics: cigarette smoking, alcohol consumption, body mass index (BMI), and physical activity. We used Cox models adjusted for age, race, age at menarche, and the modifiers of interest. Results: The analytic population was aged 50 to 71 years (median, 62 years) at enrollment and largely white (91%) and postmenopausal (96%). For ovarian cancer, OC use-associated risk reductions strengthened with duration of use (long-term OC use [>=10 years] HR, 0.60; 95% CI, 0.47-0.76; P < .001 for trend) and were similar across modifiable lifestyle factors. Risk reductions for endometrial cancer strengthened with duration of use (long-term OC use HR, 0.66; 95% CI, 0.56-0.78; P < .001 for trend); the most pronounced reductions were among long-term OC users who were smokers (HR, 0.47; 95% CI, 0.25-0.88), had obese BMIs (0.36; 95% CI, 0.25-0.52), and who exercised rarely (HR, 0.40; 95% CI, 0.29-0.56). Associations between OC use and breast and colorectal cancers were predominantly null. Conclusions and Relevance: Long-term OC use is consistently associated with reduced ovarian cancer risk across lifestyle factors. We observed the greatest risk reductions for endometrial cancer among women at risk for chronic diseases (ie, smokers, obese BMI). Oral contraceptive use may be beneficial for chemoprevention for a range of women with differing baseline cancer risks. PMID- 29346468 TI - Congenital Restrictive Strabismus. PMID- 29346469 TI - Identifying who lives in a care home-a challenge to be conquered. PMID- 29346470 TI - Proposal for a New Diagnosis for Cochlear Migraine. PMID- 29346471 TI - Use of Single-Nucleotide Polymorphisms and Mammographic Density Plus Classic Risk Factors for Breast Cancer Risk Prediction. AB - Importance: Single-nucleotide polymorphisms (SNPs) have demonstrated an association with breast cancer susceptibility, but there is limited evidence on how to incorporate them into current breast cancer risk prediction models. Objective: To determine whether a panel of 18 SNPs (SNP18) may be used to predict breast cancer in combination with classic risk factors and mammographic density. Design, Setting, and Participants: This cohort study enrolled a subcohort of 9363 women, aged 46 to 73 years, without a previous breast cancer diagnosis from the larger prospective cohort of the PROCAS study (Predicting Risk of Cancer at Screening) specifically to evaluate breast cancer risk-assessment methods. Enrollment took place from October 2009 through June 2015 from multiple population-based screening centers in Greater Manchester, England. Follow-up continued through January 5, 2017. Exposures: Genotyping of 18 SNPs, visual assessment percentage mammographic density, and classic risk assessed by the Tyrer-Cuzick risk model from a self-completed questionnaire at cohort entry. Main Outcomes and Measures: The predictive ability of SNP18 for breast cancer diagnosis (invasive and ductal carcinoma in situ) was assessed using logistic regression odds ratios per interquartile range of the predicted risk. Results: A total of 9363 women were enrolled in this study (mean [range] age, 59 [46-73] years). Of these, 466 were found to have breast cancer (271 prevalent; 195 incident). SNP18 was similarly predictive when unadjusted or adjusted for mammographic density and classic factors (odds ratios per interquartile range, respectively, 1.56; 95% CI, 1.38-1.77 and 1.53; 95% CI, 1.35-1.74), with observed risks being very close to expected (adjusted observed-to-expected odds ratio, 0.98; 95% CI, 0.69-1.28). A combined risk assessment indicated 18% of the subcohort to be at 5% or greater 10-year risk, compared with 30% of all cancers, 35% of interval-detected cancers, and 42% of stage 2+ cancers. In contrast, 33% of the subcohort were at less than 2% risk but accounted for only 18%, 17%, and 15% of the total, interval, and stage 2+ breast cancers, respectively. Conclusions and Relevance: SNP18 added substantial information to risk assessment based on the Tyrer-Cuzick model and mammographic density. A combined risk is likely to aid risk-stratified screening and prevention strategies. PMID- 29346472 TI - A Revised Estimate of Costs Associated With Routine Preoperative Testing in Medicare Cataract Patients With a Procedure-Specific Indicator. AB - Importance: Routine preoperative medical testing is not recommended for patients undergoing low-risk surgery, but testing is common before surgery. A 30-day preoperative testing window is conventionally used for study purposes; however, the extent of routine testing that occurs prior to that point is unknown. Objective: To improve on existing cost estimates by identifying all routine preoperative testing that takes place after the decision is made to perform cataract surgery. Design, Setting, and Participants: This cross-sectional study assessed preoperative care in a 50% sample of Medicare beneficiaries older than 66 years who underwent ambulatory cataract surgery in 2011. Data analysis was completed from March 2016 to October 2017. Main Outcomes and Measures: Using ocular biometry as a procedure-specific indicator to mark the start of the routine preoperative testing window, we measured testing rates in the interval between ocular biometry and cataract surgery and compared this with testing rates in the 6 months preceding biometry. We estimated the total cost of testing that occurred between biometry and cataract surgery. Results: A total of 440 857 patients underwent cataract surgery. A total of 423 710 (96.1%) had an ocular biometry claim before index surgery, of whom 264 514 (60.0%) were female; the mean (SD) age of the cohort was 76.1 (6.2) years. A total of 111 998 (25.4%) underwent surgery more than 30 days after biometry. Among patients with a biometry claim, the mean number of tests/patient/month increased from 1.1 in the baseline period to 1.7 in the interval between biometry and cataract surgery. Although preoperative testing peaked in all patients in the 30 days preceding surgery (1.8 tests/patient/month), the subset of patients with no overlap between postbiometry and presurgery periods experienced increased testing rates to 1.8 tests per patient per month in the 30 days after biometry, regardless of the elapsed time between biometry and surgery. The total estimated cost of routine preoperative testing in the full cohort was $22.7 million; we estimate that routine preoperative testing costs Medicare up to $45.4 million annually. Conclusions and Relevance: In this study of Medicare beneficiaries, routine preoperative medical testing occurs more often and is costlier than has been reported previously. Extra costs are attributable to testing that occurs prior to the 30-day window preceding surgery. As a cost-cutting measure, routine preoperative medical testing should be avoided in patients with cataracts throughout the interval between ocular biometry and cataract surgery. PMID- 29346473 TI - Treatment for Alcohol Dependence in Primary Care Compared to Outpatient Specialist Treatment-A Randomized Controlled Trial. AB - Aim: To investigate if treatment for alcohol dependence in primary care is as effective as specialist addiction care. Method: Randomized controlled non inferiority trial, between groups parallel design, not blinded. The non inferiority limit was set to 50 grams of alcohol per week. About 288 adults fulfilling ICD-10 criteria for alcohol dependence were randomized to treatment in primary care (men n = 82, women n = 62) or specialist care (men n = 77, women n = 67). General practitioners at 12 primary care centers received 1-day training in a treatment manual for alcohol dependence. Primary outcome was change in weekly alcohol consumption at 6-months follow-up compared with baseline, as measured with timeline follow back. Secondary outcomes were heavy drinking days, severity of dependence, consequences of drinking, psychological health, quality of life, satisfaction with treatment and biomarkers. Results: Intention-to-treat analysis (n = 228) was statistically inconclusive, and could not confirm non-inferiority for the primary outcome, since the high end of the confidence interval exceeded 50 grams (estimated mean weekly alcohol consumption was 30 grams higher in primary care compared with specialist care; 95% confidence interval -10.20; 69.72). However, treatment in specialist care was not significantly superior to primary care (P = 0.146). Subanalysis suggests that specialist care was superior to primary care only for patients with high severity of dependence. Conclusions: Treatment for alcohol dependence in primary care is a promising approach, especially for individuals with low to moderate dependence. This may be a way to broaden the base of treatment for alcohol dependence, reducing the current treatment gap. PMID- 29346474 TI - Examining Nonparticipation in the Maternal Follow-up Within the Danish National Birth Cohort. AB - A follow-up questionnaire on maternal health was distributed within the Danish National Birth Cohort (established in 1996-2002) 14 years after the index birth. Responses were obtained from 41,466 (53.2%) of 78,010 eligible mothers. To ensure the appropriate use of these data, the possibility of selection bias due to nonparticipation had to be evaluated. We estimated 4 selected exposure-outcome associations (prepregnancy weight-depression; exercise-degenerative musculoskeletal conditions; smoking-heart disease; and alcohol consumption-breast cancer). We adjusted for several factors associated with participation and applied inverse probability weighting. To estimate the degree of selection bias, we calculated relative odds ratios for the relationship between the baseline cohort and the subset participating in the Maternal Follow-up. Participating women were generally healthier, of higher social status, and older than the baseline cohort. However, selection bias in the chosen scenarios was limited; ratios of the odds ratios ranged from -14% to 5% after adjustment for age, parity, social status, and, if the variable was not the exposure variable, prepregnancy body mass index, exercise, smoking, and alcohol consumption. Applying inverse probability weighting did not further reduce bias. In conclusion, while participants differed somewhat from the baseline cohort, selection bias was limited after factors associated with participation status were accounted for. PMID- 29346476 TI - Errors in Figures 1, 2, and 3. PMID- 29346475 TI - Current Status of Radiology Training in Otolaryngology Residency Programs. AB - Importance: Otolaryngologists use head and neck imaging on a daily basis. However, little is known about the training residents receive on the subject. Understanding the current training environment is important to identify areas of improvement for resident education. Objective: To assess the current state of radiology training in otolaryngology residency programs. Design, Setting, and Participants: This was a cross-sectional survey of 106 otolaryngology residency program directors involving multiple academic institutions. Main Outcomes and Measures: The main outcome of this study is the number of US otolaryngology residency programs that have a radiology curriculum. Measured outcomes were obtained from an anonymous online survey and reported as a percent of total respondents. Results: Program directors from 39 of 106 (37%) US otolaryngology residency training programs responded to the survey. Twenty-eight of 39 (71%) have a focused radiology curriculum; 18 of 28 (64%) conduct sessions on a monthly basis, 8 of 28 (29%) on a quarterly basis, and 2 of 28 (7%) on a weekly basis. The predominant format (20 of 27 programs [74%]) is a mix of case-based review of inpatient studies and standard lectures. The largest proportion of sessions were run by radiologists (13 of 28 [46%]), with a mix of radiology and otolaryngologists close behind (11 of 28 [39%]). Twenty-two of 39 residency programs (56%) have a dedicated radiology rotation within their educational curriculum, of which 17 of 22 (77%) occur in postgraduate year 1 (PGY-1) of training, 3 of 22 (14%) in PGY-3, and 2 of 22 (9%) in PGY-4. Rotation lengths range from 1 week to 3 months, with most running 1 to 4 weeks. Thirty-two of 38 of US program directors (84%) believe that a formal radiology curriculum would benefit their residents. Thirty-five of 39 believe that this should be a case based review of images. Twenty-four of 38 believe this should be done on a monthly basis. Fifteen of 39 responding program directors (39%) believe the optimal time is during the PGY-3 of training, 36% (14 of 38) favor the PGY-2, and 23% (9 of 38) in PGY-1. Conclusions and Relevance: Despite no standardized requirements from the Accreditation Council for Graduate Medical Education (ACGME), 71% of US otolaryngology residency program directors who responded to our survey have a radiology curriculum. Most run didactics sessions at the desired frequency, setting, and format preferred by responding program directors. More than half of programs provide a dedicated radiology rotation, mostly during PGY-1, while identifying PGY-2 and PGY-3 as the optimal time for such an experience. These results highlight the need for a more thorough review of radiology education requirements from the ACGME to improve the training of otolaryngology residents across the country. PMID- 29346477 TI - Enasidenib-Induced Differentiation Syndrome in IDH2-Mutant Acute Myeloid Leukemia. PMID- 29346478 TI - Differentiation Syndrome Associated With Enasidenib, a Selective Inhibitor of Mutant Isocitrate Dehydrogenase 2: Analysis of a Phase 1/2 Study. AB - Importance: Enasidenib mesylate, a mutant isocitrate dehydrogenase 2 (IDH2) protein inhibitor that promotes differentiation of leukemic myeloblasts, was recently approved by the US Food and Drug Administration for use in relapsed/refractory (R/R) mutant IDH2 acute myeloid leukemia (AML). During the first study of enasidenib in humans, a minority of patients with advanced myeloid neoplasms experienced unexpected signs/symptoms of a differentiation syndrome (DS), a potentially lethal entity. Objective: To characterize IDH-inhibitor associated DS (IDH-DS) and its effective management. Design, Setting, and Participants: Using data obtained from a multicenter, open-label, pivotal phase 1/2 study of enasidenib, a differentiation syndrome review committee retrospectively evaluated potential cases of IDH-DS in enasidenib-treated patients with R/R AML. Data were collected between August 27, 2013, and October 14, 2016. The committee identified and agreed on signs and symptoms characteristic of IDH-DS and developed an algorithm for identification and treatment. Among 281 patients with R/R AML enrolled in the trial, the committee identified 72 patients for review based on investigator-reported cases of DS (n = 33) or reported adverse events or signs and symptoms characteristic of IDH-DS. Interventions: Treatment with enasidenib at a dosage of 50 to 650 mg/d was evaluated during the dose-escalation phase, and a dosage of 100 mg/d was used in the phase 1 expansion and phase 2, all in continual 28-day cycles. Main Outcomes and Measures: Unexpected adverse events of IDH-DS during the phase 1/2 study. Results: Thirty-three of the 281 patients (11.7%) were identified as having possible or probable IDH-DS. Median age of those 33 patients was 70 years (range, 38-80 years); 20 (60.6%) were male. The most frequent manifestations were dyspnea, fever, pulmonary infiltrates, and hypoxia. Median time to onset was 30 days (range, 7-129 days). Patients who experienced IDH-DS were less likely to have less than 20% bone marrow blasts (6% vs 22%, P = .04) and more likely to have undergone fewer previous anticancer regimens (median, 1.0 [range, 1-4] vs 2.0 [range, 1-14], P = .05) at study entry than those who did not. Thirteen patients (39.4%) had concomitant leukocytosis. Isocitrate dehydrogenase differentiation syndrome was effectively managed with systemic corticosteroids. The enasidenib regimen was interrupted for 15 patients (45.5%), but permanent discontinuation of treatment was not required. Conclusions and Relevance: Isocitrate dehydrogenase differentiation syndrome is a recognizable and potentially lethal clinical entity, occurring in approximately 12% of enasidenib treated patients with mutant-IDH2 R/R AML. It requires prompt recognition and management. As use of mutant IDH inhibitors increases, these findings and recommendations are increasingly germane to care of patients with mutant-IDH neoplasms. Trial Registration: clinicaltrials.gov Identifier: NCT01915498. PMID- 29346479 TI - A karyozoic phenomenon for Neospora caninum. PMID- 29346480 TI - Changing Collective Social Norms in Favour of Reduced Harmful Use of Alcohol: A Review of Reviews. AB - Background: Public sector bodies have called for policies and programmes to shift collective social norms in disfavour of the harmful use of alcohol. This article aims to identify and summarize the evidence and propose how policies and programmes to shift social norms could be implemented and evaluated. Design: Review of reviews for all years to July 2017. Data sources: Searches on OVID Medline, Healthstar, Embase, PsycINFO, AMED, Social Work Abstracts, CAB Abstracts, Mental Measurements Yearbook, Joanna Briggs Institute EBP, Health and Psychosocial Instruments, International Pharmaceutical Abstracts, International Political Science Abstracts, NASW Clinical Register and Epub Ahead of Print databases. Eligibility: All reviews, without language or date restrictions resulting from combining the terms ((review or literature review or review literature or data pooling or comparative study or systematic review or meta analysis or pooled analysis) and (social norms or culture) and (alcohol drinking)). Results: Two relevant reviews were identified. One review of community-based interventions found one study that demonstrated small changes in parental disapproval of under-age drinking. One review stressed that collective social norms about drinking are malleable and not uniform in any one country. Three factors are proposed to inform programmes: provide information about the consequences of the harmful use of alcohol, and their causes and distribution; act on groups, not individuals; and strengthen environmental laws, regulations and approaches. Conclusions: Purposeful policies and programmes could be implemented to change collective social norms in disfavour of the harmful use of alcohol; they should be evidence-based and fully evaluated for their impact. PMID- 29346483 TI - Retreat From Human Rights and Adverse Consequences for Health. PMID- 29346484 TI - Association of Dietary Inflammatory Potential With Colorectal Cancer Risk in Men and Women. AB - Importance: Inflammation is important in colorectal cancer development. Diet modulates inflammation and may thus be a crucial modifiable factor in colorectal cancer prevention. Objective: To examine whether proinflammatory diets are associated with increased colorectal cancer risk by using an empirical dietary inflammatory pattern (EDIP) score based on a weighted sum of 18 food groups that characterizes dietary inflammatory potential based on circulating levels of inflammation biomarkers. Design, Settings, and Participants: Cohort study of 46 804 men (Health Professionals Follow-up Study: 1986-2012) and 74 246 women (Nurses' Health Study: 1984-2012) followed for 26 years to examine associations between EDIP scores and colorectal cancer risk using Cox regression. We also examined associations in categories of alcohol intake and body weight. Data analysis began January 17, 2017, and was completed August 9, 2017. Exposures: EDIP scores calculated from food frequency questionnaires administered every 4 years. Main Outcomes and Measures: Incident colorectal cancer. Results: We documented 2699 incident colorectal cancer cases over 2 571 831 person-years of follow-up. Compared with participants in the lowest EDIP quintile (Q) who had a colorectal cancer incidence rate (per 100 000 person-years) of 113 (men) and 80 (women), those in the highest Q had an incidence rate of 151 (men) and 92 (women), leading to an unadjusted rate difference of 38 and 12 more colorectal cancer cases, respectively, among those consuming highly proinflammatory diets. Comparing participants in the highest vs lowest EDIP Qs in multivariable-adjusted analyses, higher EDIP scores were associated with 44% (men: hazard ratio [HR], 1.44; 95% CI, 1.19-1.74; P < .001 for trend), 22% (women: HR, 1.22; 95% CI, 1.02 1.45; P = .007 for trend), and 32% (men and women: pooled HR, 1.32; 95% CI, 1.12 1.55; P < .001 for trend) higher risk of developing colorectal cancer. In both men and women, associations were observed in all anatomic subsites except for the rectum in women. In subgroups (P <= .02 for all interactions), associations differed by alcohol intake level, with stronger associations among men (Q5 vs Q1 HR, 1.62; 95% CI, 1.05-2.49; P = .002 for trend) and women (Q5 vs Q1 HR, 1.33; 95% CI, 0.97-1.81; P = .03 for trend) not consuming alcohol; and by body weight, with stronger associations among overweight/obese men (Q5 vs Q1 HR, 1.48; 95% CI, 1.12-1.94; P = .008 for trend) and lean women (Q5 vs Q1 HR, 1.31; 95% CI, 0.99 1.74; P = .01 for trend). Conclusions and Relevance: Findings suggest that inflammation is a potential mechanism linking dietary patterns and colorectal cancer development. Interventions to reduce the adverse role of proinflammatory diets may be more effective among overweight/obese men and lean women or men and women who do not consume alcohol. PMID- 29346485 TI - Adverse Events in Facial Implant Surgery and Associated Malpractice Litigation. AB - Importance: Facial implants represent an important strategy for providing instant and long-lasting volume enhancement to address both aging and posttraumatic defects. Objective: To better understand risks of facial implants by examining national resources encompassing adverse events and considerations facilitating associated litigation. Design, Setting, and Participants: A cross-sectional study reviewed complications following facial implants. The procedures reviewed were performed on patients at locations throughout the United States from January 2006 to December 2016. Data collection was completed in March 2017. The Manufacturer and User Facility Device Experience database, which contains medical device reports submitted to the US Food and Drug Administration (FDA), was searched for complications that occurred from January 2006 to December 2016 involving facial implants made by Implantech, MEDPOR, Stryker, KLS Martin, and Synthes. Furthermore, the Thomson Reuters Westlaw legal database was searched for relevant litigation. Main Outcomes and Measures: The complications of facial implants were analyzed in relation to the location of implant and severity of complication. Litigation was analyzed to determine which factors determine outcome. Results: Thirty-nine instances of adverse events reported to the FDA were identified. Sixteen (41%) involved malar implants, followed by 12 chin implants (31%). The most common complications included infection (18 [46%]), implant migration (9 [23%]), swelling (7 [18%]), and extrusion (4 [10%]). Thirty-two patients (83%) had to have their implants removed. Infection occurred at a mean (SD) of 83.3 (68.8) days following the surgery. One-third of complications involved either migration or extrusion. The mean (range) time to migration or extrusion was 381.1 (10-2400) days. In 12 malpractice cases identified in publicly available court proceedings, alleged inadequate informed consent and requiring additional surgical intervention (ie, removal) were the most commonly cited factors. Conclusions and Relevance: Infection and implant migration or extrusion are the most common complications of facial implants. Most of these complications necessitate removal. These considerations need to be discussed with patients preoperatively as part of the informed consent process, as allegedly inadequate informed consent was cited in a significant proportion of resultant litigation, and there were overlapping considerations among adverse events reported to the FDA and factors brought up in relevant litigation. Cases resolved with settlements and jury-awarded damages encompassed considerable award totals. Level of Evidence: NA. PMID- 29346486 TI - Treatment Outcomes and Adverse Events Following In-Office Angiolytic Laser With or Without Concurrent Polypectomy for Vocal Fold Polyps. AB - Importance: In-office angiolytic laser procedures have been used successfully as an alternative treatment for vocal fold polyps; little is known in detail about the treatment outcomes and adverse events. Objective: To examine the outcomes and incidence rates of adverse events associated with in-office angiolytic laser procedures with or without concurrent polypectomy as an alternative treatment for vocal fold polyps. Design, Setting, and Participants: Retrospective cohort study at a tertiary medical center. We identified 114 consecutive patients with vocal polyps who underwent in-office angiolytic laser treatments between January 1, 2014, and August 31, 2016. After the exclusion of 17 with missing or incomplete data, 97 were enrolled. Interventions: In-office 532-nm laser procedures with or without concurrent polypectomy. Main Outcomes and Measures: Between 1 and 2 months after the surgical procedures, we collected the following outcome data: videolaryngostroboscopy, perceptual rating of voice quality, acoustic analysis, maximal phonation time, and subjective rating of voice quality using a visual analogue scale and 10-item voice handicap index. Results: This study enrolled 97 patients (mean [SD] age, 45.6 [11.3] years; 48 [49%] male). The mean duration of symptoms was 10.1 months (range, 1-60 months). Twenty-nine patients (30%) had angiolytic laser procedures only, while 68 (70%) received laser with concurrent polypectomy. Both treatment modalities offered significant improvements. Only 1 patient (1%) receiving angiolytic laser with concurrent polypectomy underwent another treatment session, so this group had significantly less need for multiple treatments than those receiving laser treatment alone (6 [21%]; effect size, 1.57; 95% CI, -2.77 to -0.36). We identified 8 adverse events (8% of the cases): vocal fold edema (n = 5), vocal hematoma (n = 2), and vocal ulceration (n = 1). Patients treated with laser plus concurrent polypectomy had significantly fewer adverse events than those treated with angiolytic laser alone (2 [3%] vs 6 [21%]; effect size, 1.20; 95% CI, 0.26 to 2.13). Conclusions and Relevance: In-office angiolytic laser procedures can be an effective alternative treatment for vocal polyps, although with possible need for multiple treatment sessions and occasional occurrence of minor postoperative adverse events. Concurrent polypectomy following laser coagulation allows less laser energy delivery and reduces the risk of postoperative adverse events and the need for additional treatment sessions. PMID- 29346487 TI - Preoperative Evaluations for Cataract Surgery Are Routine but Anachronistic. PMID- 29346488 TI - A Subretinal Cell Delivery Method via Suprachoroidal Access in Minipigs: Safety and Surgical Outcomes. AB - Purpose: This study evaluated a new subretinal method for delivery of human or pig umbilical tissue-derived cells (hUTC or pUTC, respectively) using a novel subretinal injection cannula and suprachoroidal approach in Gottingen minipig eyes. hUTC (palucorcel) are currently under development for treating geographic atrophy in humans. Methods: Twenty-four Gottingen minipigs (divided into eight groups) were subretinally administered palucorcel, pUTC, or vehicle. In some cases, fluorescently labeled cells and vehicle were administered. Conjunctival cutdown and sclerotomy were performed, then a flexible cannula containing a microneedle was inserted and advanced into the suprachoroidal space. The microneedle was deployed and visualized; 50 MUL cells (target concentration, 11.2 * 106 cells/mL [560,000 cells/eye]) or vehicle was injected subretinally. Safety outcomes were evaluated. Results: For all animals, cells and vehicle were successfully administered. Labeled cells or fluorescent vehicle were contained in the subretinal bleb, without leakage into the vitreous. No retinal detachment or vitreous traction band was identified by ophthalmologic examination. At all time points, observed microscopic changes were attributable to experimental procedures. On histopathology immediately after injection, localized retinal detachments were seen, along with focal retinal, choroidal, and/or scleral discontinuities. A moderate inflammatory response was seen in a limited number of animals. In the allogeneic setting, no antibody responses were detectable. Anti human UTC antibodies were detected in the xenogeneic setting. Conclusions: Palucorcel, pUTC, and vehicle were successfully administered to Gottingen minipigs using a novel subretinal injection cannula via a suprachoroidal surgical approach, with no significant adverse events; therefore, this technique appears to be feasible for further clinical development. PMID- 29346489 TI - The Suprachoroidal Delivery Route and Exploring the Potential of Cell-Based Therapies for Age-Related Macular Degeneration. PMID- 29346491 TI - Increased mtDNA Copy Number Does Not Protect Against LHON. PMID- 29346490 TI - Composition, Architecture, and Functional Implications of the Connective Tissue Network of the Extraocular Muscles. AB - Purpose: We examined the pattern and extent of connective tissue distribution in the extraocular muscles (EOMs) and determined the ability of the interconnected connective tissues to disseminate force laterally. Methods: Human EOMs were examined for collagens I, III, IV, and VI; fibronectin; laminin; and elastin using immunohistochemistry. Connective tissue distribution was examined with scanning electron microscopy. Rabbit EOMs were examined for levels of force transmission longitudinally and transversely using in vitro force assessment. Results: Collagens I, III, and VI localized to the endomysium, perimysium, and epimysium. Collagen IV, fibronectin, and laminin localized to the basal lamina surrounding all myofibers. All collagens localized similarly in the orbital and global layers throughout the muscle length. Elastin had the most irregular pattern and ran longitudinally and circumferentially throughout the length of all EOMs. Scanning electron microscopy showed these elements to be extensively interconnected, from endomysium through the perimysium to the epimysium surrounding the whole muscle. In vitro physiology demonstrated force generation in the lateral dimension, presumably through myofascial transmission, which was always proportional to the force generated in the longitudinally oriented muscles. Conclusions: A striking connective tissue matrix interconnects all the myofibers and extends, via perimysial connections, to the epimysium. These interconnections are significant and allow measurable force transmission laterally as well as longitudinally, suggesting that they may contribute to the nonlinear force summation seen in motor unit recording studies. This provides strong evidence that separate compartmental movements are unlikely as no region is independent of the rest of the muscle. PMID- 29346492 TI - Author Response: Increased mtDNA Copy Number Protects Against LHON. PMID- 29346495 TI - Long Term Temporal Changes in Structure and Function of Rat Visual System After Blast Exposure. AB - Purpose: We identify long-term ocular sequelae subsequent to experimental blast exposure. Methods: Male Long-Evans rats were exposed to 230 kPa side-on primary blast overpressure using a compressed air driven shock tube. Visual system function and structure were assessed for 8 weeks after exposure using optokinetic nystagmus and optical coherence tomography. Vitreous protein expression and histology (TUNEL, H&E) were performed at 1 day and 1, 4, and 8 weeks. IOP was recorded bilaterally during blast in a subset of animals. Results: Blast pressure profiles resembled the Friedlander waveform indicative of an open field blast. Peak IOP in directly-exposed eyes (240 kPa) was similar to peak blast overpressure, but IOP in indirectly-exposed eyes was 30% lower. Contrast sensitivity of blast-exposed animals decreased significantly by 20% 1 day after blast and did not recover by 8 weeks. Significant swelling and structural damage to the corneal epithelial and stromal layers were observed 2 weeks after blast exposure. Swollen corneas increased 254 +/- 143 MUm from baseline by 6 weeks, and scarring developed by 8 weeks. Histology revealed additional lens pathology 1 week after blast, suggestive of cataract development. Endothelial cell density increased significantly in blast-exposed animals between 1 and 4 weeks. Neurofilament heavy chain significantly increased after blast and returned to near baseline values by 8 weeks. Inflammatory cytokine changes corroborated ocular pathology findings. Conclusions: These data demonstrate immediate visual dysfunction and biochemical responses, but delayed structural pathology, in response to single primary blast exposure. The delayed pathology time course may provide a window to implement treatment strategies for improved visual outcome. PMID- 29346493 TI - Antimicrobial Studies Using the Therapeutic Tissue Cross-Linking Agent, Sodium Hydroxymethylglycinate: Implication for Treating Infectious Keratitis. AB - Purpose: Our recent studies raise the possibility of using sodium hydroxymethylglycinate (SMG), for pharmacologic therapeutic tissue cross-linking (TXL) of the cornea. The present study was performed to evaluate the antimicrobial effects of SMG for potential use in treating infectious keratitis. Methods: In initial (group 1) experiments, methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), and Pseudomonas aeruginosa (PA) were treated with SMG (10-40 mM) for 10 to 120 minutes. In group 2 experiments, MRSA, PA, Candida albicans (CA), and vancomycin resistant Enterococcus (VRE) were treated with SMG (20-200 mM) for 30 minutes. In group 2 experiments, BSA and neutralizing buffer were added to provide a proteinaceous medium, and to ensure precise control of SMG exposure times, respectively. SMG effectiveness was quantitated based on pathogen growth following a 24- to 48-hour incubation period. Results: In group 1 experiments, as expected, time- and concentration-dependent bactericidal effects were noted using MSSA. In addition, the effect of SMG (40 mM) was greatest against MSSA (99.3%), MRSA (96.0%), and PA (97.4%) following a 2-hour exposure with lesser effects following 30- and 10-minute exposures. In group 2 experiments, concentration dependent bactericidal effects were confirmed for MRSA (91%), PA (99%), and VRE (55%) for 200-mM SMG with 30-minute treatment. SMG was not as effective against CA, with a maximum kill rate of 37% at 80 mM SMG. Conclusions: SMG solution exhibits a dose-dependent bactericidal effect on MSSA, MRSA, and PA, with milder effects on VRE and CA. These studies raise the possibility of using SMG TXL for the treatment of infectious keratitis. PMID- 29346496 TI - Melanopsin System Dysfunction in Smith-Magenis Syndrome Patients. AB - Purpose: Smith-Magenis syndrome (SMS) causes sleep disturbance that is related to an abnormal melatonin profile. It is not clear how the genomic disorder leads to a disturbed synchronization of the sleep/wake rhythm in SMS patients. To evaluate the integrity of the intrinsically photosensitive retinal ganglion cell (ipRGC)/melanopsin system, the transducers of the light-inhibitory effect on pineal melatonin synthesis, we recorded pupillary light responses (PLR) in SMS patients. Methods: Subjects were SMS patients (n = 5), with molecular diagnosis and melatonin levels measured for 24 hours and healthy controls (n = 4). Visual stimuli were 1-second red light flashes (640 nm; insignificant direct ipRGC activation), followed by a 470-nm blue light, near the melanopsin peak absorption region (direct ipRGC activation). Blue flashes produce a sustained pupillary constriction (ipRGC driven) followed by baseline return, while red flashes produce faster recovery. Results: Pupillary light responses to 640-nm red flash were normal in SMS patients. In response to 470-nm blue flash, SMS patients had altered sustained responses shown by faster recovery to baseline. SMS patients showed impairment in the expected melatonin production suppression during the day, confirming previous reports. Conclusions: SMS patients show dysfunction in the sustained component of the PLR to blue light. It could explain their well known abnormal melatonin profile and elevated circulating melatonin levels during the day. Synchronization of daily melatonin profile and its photoinhibition are dependent on the activation of melanopsin. This retinal dysfunction might be related to a deficit in melanopsin-based photoreception, but a deficit in rod function is also possible. PMID- 29346494 TI - Novel Myopia Genes and Pathways Identified From Syndromic Forms of Myopia. AB - Purpose: To test the hypothesis that genes known to cause clinical syndromes featuring myopia also harbor polymorphisms contributing to nonsyndromic refractive errors. Methods: Clinical phenotypes and syndromes that have refractive errors as a recognized feature were identified using the Online Mendelian Inheritance in Man (OMIM) database. One hundred fifty-four unique causative genes were identified, of which 119 were specifically linked with myopia and 114 represented syndromic myopia (i.e., myopia and at least one other clinical feature). Myopia was the only refractive error listed for 98 genes and hyperopia and the only refractive error noted for 28 genes, with the remaining 28 genes linked to phenotypes with multiple forms of refractive error. Pathway analysis was carried out to find biological processes overrepresented within these sets of genes. Genetic variants located within 50 kb of the 119 myopia related genes were evaluated for involvement in refractive error by analysis of summary statistics from genome-wide association studies (GWAS) conducted by the CREAM Consortium and 23andMe, using both single-marker and gene-based tests. Results: Pathway analysis identified several biological processes already implicated in refractive error development through prior GWAS analyses and animal studies, including extracellular matrix remodeling, focal adhesion, and axon guidance, supporting the research hypothesis. Novel pathways also implicated in myopia development included mannosylation, glycosylation, lens development, gliogenesis, and Schwann cell differentiation. Hyperopia was found to be linked to a different pattern of biological processes, mostly related to organogenesis. Comparison with GWAS findings further confirmed that syndromic myopia genes were enriched for genetic variants that influence refractive errors in the general population. Gene-based analyses implicated 21 novel candidate myopia genes (ADAMTS18, ADAMTS2, ADAMTSL4, AGK, ALDH18A1, ASXL1, COL4A1, COL9A2, ERBB3, FBN1, GJA1, GNPTG, IFIH1, KIF11, LTBP2, OCA2, POLR3B, POMT1, PTPN11, TFAP2A, ZNF469). Conclusions: Common genetic variants within or nearby genes that cause syndromic myopia are enriched for variants that cause nonsyndromic, common myopia. Analysis of syndromic forms of refractive errors can provide new insights into the etiology of myopia and additional potential targets for therapeutic interventions. PMID- 29346497 TI - Convergent and Divergent Validity of the Grammaticality and Utterance Length Instrument. AB - Purpose: This feasibility study examines the convergent and divergent validity of the Grammaticality and Utterance Length Instrument (GLi), a tool designed to assess the grammaticality and average utterance length of a child's prerecorded story retell. Method: Three raters used the GLi to rate audio-recorded story retells from 100 English-speaking preschool children. To examine convergent validity, the results of the GLi were correlated with 2 language sample measures, mean length of utterance in words and percentage of grammatical utterances, and with the results of the Structured Photographic Expressive Language Test-Third Edition (Dawson, Stout, & Eyer, 2003). To examine divergent validity, the results of the GLi were correlated with the results of the Kaufman Brief Intelligence Test-Second Edition (Kaufman & Kaufman, 2004). Comparisons between task completion time for the GLi and Systematic Analysis of Language Transcripts (SALT; Miller & Iglesias, 2010) transcription and analysis were also conducted. Last, preliminary discriminant analysis was used to examine the diagnostic potential of the GLi. Results: The results of this study provide evidence of convergent and divergent validity for the GLi. The task completion time for the GLi was considerably shorter than the SALT transcription and analysis. Preliminary analysis of diagnostic accuracy suggests that the GLi has the potential to be a good tool to identify children with language impairment. Discussion: The GLi has good convergent and divergent validity and is a reliable instrument to assess utterance length and grammaticality of prerecorded language samples. However, SALT transcription and analysis provide a more detailed and comprehensive analysis of the language skills of a child. PMID- 29346498 TI - Association of Treatment for Hodgkin Lymphoma With Estrogen Receptor Status of Subsequent Breast Cancers. PMID- 29346499 TI - Repeatability and Agreement of Visual Acuity Using the ETDRS Number Chart, Landolt C Chart, or ETDRS Alphabet Chart in Eyes With or Without Sight Threatening Diseases. AB - Importance: The Early Treatment Diabetic Retinopathy Study (ETDRS) alphabet chart is not feasible for measuring best-corrected visual acuity (BCVA) for individuals who are unfamiliar with the Roman alphabet. The ETDRS Landolt C chart is an alternative, but it may not reflect true BCVA among those with confusion between left and right. The ETDRS number chart might overcome these limitations, but little is known regarding its reliability. Objective: To evaluate repeatability and agreement of BCVA using the ETDRS number chart or Landolt C chart compared with ETDRS alphabet charts in healthy and diseased eyes. Design, Setting, and Participants: A cross-sectional study was conducted in Thailand from July 1, 2015, to June 30, 2016, among 154 adult Thai individuals. Those who could read Roman alphabets were classified into the following 4 groups, using 1 eye per participant: group A, which comprised 60 healthy eyes (BCVA, 20/20-20/25); group B, which comprised 40 eyes with age-related cataract, diabetic macular edema, or age-related macular degeneration (BCVA, 20/20-20/40); group C, which comprised 40 eyes with age-related cataract, diabetic macular edema, or age-related macular degeneration (BCVA, 20/50-20/100); and group D, which comprised 14 eyes with age related cataract, diabetic macular edema, or age-related macular degeneration (BCVA, 20/125-20/200). Interventions: Two standardized 4-m BCVA measurements with 3 different Precision Vision ETDRS charts (PV number, Landolt C, and alphabet), in random sequence, performed 30 minutes apart. Main Outcomes and Measures: Repeatability, agreement, and testing duration of BCVA. Results: Of 154 Thai participants (82 women and 72 men; mean [SD] age, 52.9 [18.2] years), the ETDRS number chart had strong repeatability coefficients (group A, 0.61 [95% CI, 0.42 0.75]; group B, 0.87 [95% CI, 0.78-0.93]; group C, 0.81 [95% CI, 0.67-0.90]; and group D, 0.81 [95% CI, 0.49-0.94]). Concordance correlation coefficients between the number and alphabet charts were also strong (group A, 0.89 [95% CI, 0.82 0.93]; group B, 0.97 [95% CI, 0.94-0.98]; group C, 0.92 [95% CI, 0.86-0.96]; and group D, 0.96 [95% CI, 0.87-0.99]), while the concordance correlation coefficients between the Landolt C and alphabet charts were lower (group A, 0.72 [95% CI, 0.52-0.83]; group B, 0.83 [95% CI, 0.68-0.91]; group C, 0.79 [95% CI, 0.61-0.89]; and group D, 0.89 [95% CI, 0.66-0.97]). The mean letter score difference between the number and alphabet charts was 1 (95% limits of agreement, -4 to +6) compared with -7 (95% limits of agreement, -18 to +5; P < .001) between the Landolt C and alphabet charts. Conclusions and Relevance: The repeatability coefficients and concordance correlation coefficients suggest that ETDRS number charts are viable for measuring BCVA in clinical practice and trials for individuals who are unfamiliar with the Roman alphabet. PMID- 29346500 TI - Commentary: Alcohol and Alcoholism Special Issue on 'Alcohol and Liver Transplantation'. PMID- 29346503 TI - p53beta: a new prognostic marker for patients with clear-cell renal cell carcinoma from 5.3 years of median follow-up. AB - We previously reported six different p53 isoforms in renal cell carcinoma (RCC). In the present study, influences of p53beta on recurrence-free survival (RFS) and overall survival (OS) were evaluated. Patients diagnosed with RCC in our center were into this study. mRNA expressions of p53 isoforms (p53alpha, p53beta, p53gamma) in tumors were determined by RT-PCR and real-time PCR. Functional yeast based assay was performed to analyze p53 mutational status. p53beta transfected 786-O and CAKi-1 cells were cultured to examine expressions of B-cell lymphoma 2 associated X protein (bax) and caspase-3, and ratios of apoptosis. After surgeries, all patients were followed up at programmed intervals. 266 patients were analyzed in this study. Median follow-up time was 5.3 years. RT-PCR (r = 0.72, P = 0.016) and real-time PCR (r = -0.65, P = 0.033) both showed only p53beta expressed higher level in lower tumor stage versus higher stage. p53 wild type and p53 mutation had comparable RFS (P = 0.361) and OS (P = 0.218), respectively. Kaplan-Meier analysis showed high p53beta expression was associated with significantly improved RFS and OS, regardless of p53 mutational status. High p53beta expression indicated better RFS [hazard ratio (HR) 2.599, 95% confidence interval (CI) 1.472-4.551, P = 0.038] and OS (HR 2.604, 95% CI 1.453-4.824, P = 0.031). p53beta transfected 786-O and CAKi-1 cells expressed significantly higher level of bax and caspase-3, and had higher ratios of apoptosis than untransfected cells. Taken together, higher level of p53beta predict better prognosis in patients with RCC through enhancing apoptosis in tumors. PMID- 29346505 TI - Clustering single cells: a review of approaches on high-and low-depth single-cell RNA-seq data. PMID- 29346504 TI - BAUM: improving genome assembly by adaptive unique mapping and local overlap layout-consensus approach. AB - Motivation: It is highly desirable to assemble genomes of high continuity and consistency at low cost. The current bottleneck of draft genome continuity using the second generation sequencing (SGS) reads is primarily caused by uncertainty among repetitive sequences. Even though the single-molecule real-time sequencing technology is very promising to overcome the uncertainty issue, its relatively high cost and error rate add burden on budget or computation. Many long-read assemblers take the overlap-layout-consensus (OLC) paradigm, which is less sensitive to sequencing errors, heterozygosity and variability of coverage. However, current assemblers of SGS data do not sufficiently take advantage of the OLC approach. Results: Aiming at minimizing uncertainty, the proposed method BAUM, breaks the whole genome into regions by adaptive unique mapping; then the local OLC is used to assemble each region in parallel. BAUM can (i) perform reference-assisted assembly based on the genome of a close species (ii) or improve the results of existing assemblies that are obtained based on short or long sequencing reads. The tests on two eukaryote genomes, a wild rice Oryza longistaminata and a parrot Melopsittacus undulatus, show that BAUM achieved substantial improvement on genome size and continuity. Besides, BAUM reconstructed a considerable amount of repetitive regions that failed to be assembled by existing short read assemblers. We also propose statistical approaches to control the uncertainty in different steps of BAUM. Availability and implementation: http://www.zhanyuwang.xin/wordpress/index.php/2017/07/21/baum. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29346506 TI - Small and surrounded: population size and land use intensity interact to determine reliance on autonomous selfing in a monocarpic plant. AB - Background and Aims: Habitat fragmentation has transformed landscapes globally, leaving remnants embedded within a complex matrix that is rapidly becoming more developed. For many plant populations, the associated factors of decreased size and intensification of land use surrounding them are expected to increase pollen limitation ('PL'), unless autonomous self-pollination provides reproductive assurance ('RA'). Decreased pollinator visitation is often assumed to drive these patterns, but other, less studied mechanisms might include increased heterospecific pollen transfer or decreased conspecific pollen availability via florivory. I investigate how PL and RA and their potential underlying mechanisms vary with population size and land use intensity surrounding populations in the biennial Sabatia angularis (Gentianaceae). Methods: I estimated the capacity for seed production via autonomous self-pollination (i.e. autofertility). Over 2 years in 22 S. angularis populations across a fragmented landscape, I performed emasculation and pollen supplementation experiments measuring RA and PL, and quantified visitation rates of potential pollinators and a pollen consumer, conspecific pollen loads and rates of heterospecific pollen deposition. Key results: Autofertility based on fruit mass was 93 % under PL but only 51.6 % relative to maximal conditions. PL and RA were significant on average across populations in the first year of study. Variation in RA was significantly influenced by the interaction between population size and land use intensity, which in turn rendered PL independent of these factors. Visitation and heterospecific pollen deposition rates were greatest in small populations and declined with population size, while conspecific pollen loads were greatest in intermediate sized populations. Conclusions: Increased reliance on RA is predicted in small S. angularis populations surrounded by intense development, which can explain elevated selfing rates in fragmented populations of plant species more generally. Results from this study point toward forces such as heterospecific pollen transfer, self-pollen limitation or resource availability influencing the need and ability to rely on RA. PMID- 29346508 TI - Oroxylin A, a natural compound, mitigates the negative effects of TNFalpha treated acute myelogenous leukemia cells. AB - Tumor necrosis factor alpha (TNFalpha) is a complicated cytokine which is involved in proliferation and differentiation of acute myelogenous leukemia (AML) cells through a poorly understood mechanism. Mechanistic studies indicate that TNFalpha induced binding of PI3K subunit p85alpha to N-terminal truncated nuclear receptor RXRalpha (tRXRalpha) proteins, and activated AKT. The activated PI3K/AKT pathway negatively regulated differentiation of AML cells through the upregulation of c-Myc. In addition, TNFalpha also induced activation of nuclear factor kappaB (NF-kappaB), a nuclear transcription factor which was shown to promote cell proliferation. The present study demonstrates that oroxylin A, a natural compound isolated from Scutellariae radix, sensitizes leukemia cells to TNFalpha and markedly enhances TNFalpha-induced growth inhibition and differentiation of AML cell including human leukemia cell lines and primary AML cells. Activation of PI3K/AKT pathway could be inhibited by oroxylin A through inhibiting expression of tRXRalpha in NB4 and HL-60-resistant cells. Furthermore, we found that oroxylin A inhibited the activation of NF-kappaB and the DNA binding activity by TNFalpha proved by EMSA in these two AML cell lines. Moreover, in vivo studies showed that treatment with oroxylin A in combination with TNFalpha decreased AML cell population and prolonged survival in NOD/SCID mice with xenografts of primary AML cells. Overall, our results indicate that oroxylin A is able to inhibit the negative effects of TNFalpha for AML therapy, suggesting that combination of oroxylin A and TNFalpha have the potential to delay growth or eliminate the abnormal leukemic cells, thus representing a promising strategy for AML treatment. PMID- 29346509 TI - A distance-based approach for testing the mediation effect of the human microbiome. AB - Motivation: Recent studies have revealed a complex interplay between environment, the human microbiome and health and disease. Mediation analysis of the human microbiome in these complex relationships could potentially provide insights into the role of the microbiome in the etiology of disease and, more importantly, lead to novel clinical interventions by modulating the microbiome. However, due to the high dimensionality, sparsity, non-normality and phylogenetic structure of microbiome data, none of the existing methods are suitable for testing such clinically important mediation effect. Results: We propose a distance-based approach for testing the mediation effect of the human microbiome. In the framework, the nonlinear relationship between the human microbiome and independent/dependent variables is captured implicitly through the use of sample wise ecological distances, and the phylogenetic tree information is conveniently incorporated by using phylogeny-based distance metrics. Multiple distance metrics are utilized to maximize the power to detect various types of mediation effect. Simulation studies demonstrate that our method has correct Type I error control, and is robust and powerful under various mediation models. Application to a real gut microbiome dataset revealed that the association between the dietary fiber intake and body mass index was mediated by the gut microbiome. Availability and implementation: An R package 'MedTest' is freely available at https://github.com/jchen1981/MedTest. Contact: zhiwei@njit.edu or chen.jun2@mayo.edu. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29346507 TI - Activity and safety of afatinib in a window preoperative EORTC study in patients with squamous cell carcinoma of the head and neck (SCCHN). AB - Background: To investigate the activity and safety of afatinib in the preoperative treatment of squamous cell carcinoma of the head and neck (SCCHN). Patients and methods: This study was an open-label, randomized, multicenter, phase II window of opportunity trial. Treatment-naive SCCHN patients selected for primary curative surgery were randomized (5 : 1 ratio) to receive afatinib during 14 days (day -15 until day -1) before surgery (day 0) or no treatment. Tumor biopsies, 2-[fluorine-18]-fluoro-2-deoxy-d-glucose positron emission tomography (FDG-PET), and magnetic resonance imaging (MRI) were carried out at diagnosis and just before surgery. The primary end point was metabolic FDG-PET response (according to EORTC guidelines). Other end points included response assessment based on the Response Evaluation Criteria In Solid Tumors (RECIST) v1.1, dynamic contrast-enhanced (DCE)-MRI, diffusion weighted (DW)-MRI, safety, and translational research (TR). Results: Thirty patients were randomized: 25 to afatinib and 5 to control arm. Of the 23 eligible patients randomized to afatinib, 16 (70%; 95% CI: 47% to 87%) patients had a partial metabolic FDG-PET response (PMR). Five patients (22%; 95% CI: 8% to 44%) showed a partial response by RECISTv1.1. Responses assessed via DCE-MRI and DWI-MRI did not show a strong association with PMR or RECIST. One patient discontinued afatinib after 11 days for grade 3 diarrhea with subsequent renal failure and 24 days delay in surgery. No grade 4 toxicities or surgical comorbidities related to afatinib were reported. TR results indicated that PMR was more frequent in the tumors with high Cluster3-hypoxia score expression and with TP53 wild type. Conclusion: Afatinib given for 2 weeks to newly diagnosed SCCHN patients induces a high rate of FDG PET partial metabolic response and partial response according to RECISTv1.1. Afatinib can be safely administered before surgery. Although exploratory, the hypoxic gene signature needs further investigations as a predictive biomarker of afatinib activity. Clinical trial registration: ClinicalTrials.gov: NCT01538381. PMID- 29346510 TI - VIPER: a web application for rapid expert review of variant calls. AB - Summary: With the rapid development in next-generation sequencing, cost and time requirements for genomic sequencing are decreasing, enabling applications in many areas such as cancer research. Many tools have been developed to analyze genomic variation ranging from single nucleotide variants to whole chromosomal aberrations. As sequencing throughput increases, the number of variants called by such tools also grows. Often employed manual inspection of such calls is thus becoming a time-consuming procedure. We developed the Variant InsPector and Expert Rating tool (VIPER) to speed up this process by integrating the Integrative Genomics Viewer into a web application. Analysts can then quickly iterate through variants, apply filters and make decisions based on the generated images and variant metadata. VIPER was successfully employed in analyses with manual inspection of more than 10 000 calls. Availability and implementation: VIPER is implemented in Java and Javascript and is freely available at https://github.com/MarWoes/viper. Contact: marius.woeste@uni-muenster.de. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29346511 TI - Sleep and Health in Older Adulthood: Recent Advances and the Path Forward. PMID- 29346512 TI - Validation of the Pediatric Infectious Diseases Society-Infectious Diseases Society of America Severity Criteria in Children With Community-Acquired Pneumonia. AB - Background: The Pediatric Infectious Diseases Society (PIDS)-Infectious Diseases Society of America (IDSA) guideline for community-acquired pneumonia (CAP) recommends intensive care unit (ICU) admission or continuous monitoring for children meeting severity criteria. Our objective was to validate these criteria. Methods: This was a retrospective cohort study of children aged 3 months-18 years diagnosed with CAP in a pediatric emergency department (ED) from September 2014 through August 2015. Children with chronic conditions and recent ED visits were excluded. The primary predictor was the PIDS-IDSA severity criteria. Outcomes included disposition, and interventions and diagnoses that necessitated hospitalization (ie, need for hospitalization [NFH]). Results: Of 518 children, 56.6% were discharged; 54.3% of discharged patients and 80.8% of those hospitalized for less than 24 hours were classified as severe. Of those admitted, 10.7% did not meet severity criteria; 69.5% met PIDS-IDSA severity criteria. Of those children, 73.1% did not demonstrate NFH. The areas under the receiver operator characteristic curves (AUC) for PIDS-IDSA major criteria were 0.63 and 0.51 for predicting disposition and NFH, respectively. For PIDS-IDSA minor criteria, the AUC was 0.81 and 0.56 for predicting disposition and NFH, respectively. The sensitivity, specificity, and likelihood ratios (LR)+ and LR- of the PIDS-IDSA criteria were 89%, 46%, 1.65, and 0.23 for disposition and 95%, 16%, 1.13, and 0.31 for NFH. Conclusions: More than half of children classified as severe by PIDS-IDSA criteria were not hospitalized. The PIDS-IDSA CAP severity criteria have only fair ability to predict the need for hospitalization. New predictive tools specifically for children are required to improve clinical decision making. PMID- 29346513 TI - Pancancer analysis identifies prognostic high-APOBEC1 expression level implicated in cancer in-frame insertions and deletions. AB - Genome insertions and deletions (indels) show tremendous functional impacts despite they are much less common than single nucleotide variants, which are at the center of studies assessing cancer mutational signatures. We studied 8891 tumor samples of 32 types from The Cancer Genome Atlas in order to explore those genes which are potentially implicated in cancer indels. Survival analysis identified in-frame indels as the most important variants predicting adverse outcome. Transcriptome-wide association study identified 16 genes overexpressed in both tumor samples and tumor types with high number of in-frame indels, of whom four (APOBEC1, BCL2L15, FOXL1 and PDX1) were identified with gene products distributed within the nucleus. APOBEC1 emerged as the mere consistently hypomethylated gene in tumor samples with high number of in-frame indels. The correlation of APOBEC1 expression levels with cancer indels was independent of age and defects in DNA homologous recombination (HR) and/or mismatch repair. Unlike frame-shift indels, triplet repeat motifs were found to occur frequently at in-frame indel sites. The splicing variant 3, making a shorter isoform b, showed essentially all the same indel correlations as of APOBEC1. Expression levels of both APOBEC1 and variant 3 were found to be predicting adverse prognosis independent of DNA HR and mismatch repair. Not less importantly, high level of variant 3 in paired normal tissues was also proved to predict cancer outcome. Our findings propose APOBEC1 and isoform b as the potential endogenous mutators implicated in cancer in-frame indels and pave the way for their use as novel prognostic tumor markers. PMID- 29346514 TI - Optimal water networks in protein cavities with GAsol and 3D-RISM. AB - Motivation: Water molecules in protein binding sites play essential roles in biological processes. The popular 3D-RISM prediction method can calculate the solvent density distribution within minutes, but is difficult to convert it into explicit water molecules. Results: We present GAsol, a tool that is capable of finding the network of water molecules that best fits a particular 3D-RISM density distribution in a fast and accurate manner and that outperforms other available tools by finding the globally optimal solution thanks to its genetic algorithm. Availability and implementation: https://github.com/accsc/GAsol. BSD 3 clauses license. Contact: alvaro.x.cortes@gsk.com. Supplementary information: Supplementary data are available at Bioinformatics online. PMID- 29346515 TI - A brain-based pain facilitation mechanism contributes to painful diabetic polyneuropathy. AB - The descending pain modulatory system represents one of the oldest and most fundamentally important neurophysiological mechanisms relevant to pain. Extensive work in animals and humans has shown how a functional imbalance between the facilitatory and inhibitory components is linked to exacerbation and maintenance of persistent pain states. Forward translation of these findings into clinical populations is needed to verify the relevance of this imbalance. Diabetic polyneuropathy is one of the most common causes of chronic neuropathic pain; however, the reason why ~25-30% of patients with diabetes develop pain is not known. The current study used a multimodal clinical neuroimaging approach to interrogate whether the sensory phenotype of painful diabetic polyneuropathy involves altered function of the ventrolateral periaqueductal grey-a key node of the descending pain modulatory system. We found that ventrolateral periaqueductal grey functional connectivity is altered in patients suffering from painful diabetic polyneuropathy; the magnitude of which is correlated to their spontaneous and allodynic pain as well as the magnitude of the cortical response elicited by an experimental tonic heat paradigm. We posit that ventrolateral periaqueductal grey-mediated descending pain modulatory system dysfunction may reflect a brain-based pain facilitation mechanism contributing to painful diabetic polyneuropathy. PMID- 29346516 TI - Deletion of Nrip1 Extends Female Mice Longevity, Increases Autophagy, and Delays Cell Senescence. AB - Using age of female sexual maturation as a biomarker, we previously identified nuclear receptor interacting protein 1 (Nrip1) as a candidate gene that may regulate aging and longevity. In the current report, we found that the deletion of Nrip1 can significantly extend longevity of female mice (log-rank test, p = .0004). We also found that Nrip1 expression is altered differently in various tissues during aging and under diet restriction. Remarkably, Nrip1 expression is elevated with aging in visceral white adipose tissue (WAT), but significantly reduced after 4 months of diet restriction. However, in gastrocnemius muscle, Nrip1 expression is significantly upregulated after the diet restriction. In mouse embryonic fibroblasts, we found that the deletion of Nrip1 can suppress fibroblast proliferation, enhance autophagy under normal culture or amino acid starvation conditions, as well as delay oxidative and replicative senescence. Importantly, in WAT of old animals, the deletion of the Nrip could significantly upregulate autophagy and reduce the number of senescent cells. These results suggest that deleting Nrip1 can extend female longevity, but tissue-specific deletion may have varying effects on health span. The deletion of Nrip1 in WAT may delay senescence in WAT and extend health span. PMID- 29346517 TI - Does Telomere Length Indicate Biological, Physical, and Cognitive Health Among Older Adults? Evidence from the Health and Retirement Study. AB - Telomere length (TL) has been suggested as a biomarker that can indicate individual variability in the rate of aging. Yet, it remains unclear whether TL is related to recognized indicators of health in an aging, older nationally representative sample. We examine whether TL is associated with 15 biological, physical, and cognitive markers of health among older adults ages 54+. TL was assayed from saliva using quantitative polymerase chain reaction (T/S ratio) in the 2008 Health and Retirement Study (n = 4,074). We estimated probability of high-risk levels across indictors of health by TL and age-singly and jointly. TL was associated with seven indicators of poor functioning: high-density lipoprotein and total cholesterol, cystatin C, pulse pressure, body mass index, lung function, and walking speed. However, after adjusting for age, associations were substantially attenuated; only associations with cholesterol and lung function remained significant. Additionally, findings show TL did not add to the predictive power of chronological age in predicting poor functioning. While TL may not be a useful clinical marker of functional aging in an older adult population, it may still play an important role in longitudinal studies in young and middle aged populations that attempt to understand aging. PMID- 29346518 TI - Determinants of Health Trajectories in England and the United States: An Approach to Identify Different Patterns of Healthy Aging. AB - Background: Aging is a multidimensional process with a remarkable interindividual variability. This study is focused on identifying groups of population with similar aging patterns, and to define the health trajectories of these groups. Sociodemographic and health determinants of these trajectories are also identified. Methods: Data from the English Longitudinal Study of Aging (ELSA) and the Health and Retirement Study (HRS) were used. A set of self-reported health items and measured tests were used to generate a latent health metric by means of a Bayesian multilevel IRT model, assessing the ability of the metric to predict mortality. Then, a Growth Mixture Model (GMM) was conducted in each study to identify latent classes and assess health trajectories. Kaplan-Meier survival curves were obtained for each class and a multinomial logistic regression was used to identify determinants of these trajectories. Results: The health score generated showed an adequate ability to predict mortality over 10 years in ELSA (AUC = 0.74; 95% CI: 0.72, 0.75) and HRS (AUC = 0.74; 95% CI: 0.73, 0.75). By means of GMM, four latent classes were identified in ELSA and five in HRS. Chronic conditions, no qualification and low level of household wealth were associated to the classes which showed a higher mortality in both studies. Conclusion: The method based on the creation of a common metric of health and the use of GMM to identify similar patterns of aging, allows for the comparison of trajectories of health across longitudinal surveys. Multimorbidity, educational level, and household wealth could be considered as determinants associated to these trajectories. PMID- 29346519 TI - Final results of a multi-institutional phase II trial of reirradiation with concurrent weekly cisplatin and cetuximab for recurrent or second primary squamous cell carcinoma of the head and neck. AB - Background: The optimal regimen of chemotherapy and reirradiation (re-XRT) for recurrent head and neck squamous cell carcinoma (HNSCC) is controversial. We report the final outcomes of a multicenter phase II trial evaluating cetuximab and cisplatin-based chemotherapy concurrent with re-XRT for patients with recurrent HNSCC. Materials and methods: Patients with unresectable recurrent disease or positive margins after salvage surgery arising within a previously irradiated field with KPS >= 70 were eligible for this trial. Cetuximab 400 mg/m2 was delivered as a loading dose in week 1 followed by weekly cetuximab 250 mg/m2 and cisplatin 30 mg/m2 concurrent with 6 weeks of intensity-modulated radiotherapy to a dose of 60-66 Gy in 30 daily fractions. Patients who previously received both concurrent cetuximab and cisplatin with radiation or who received radiotherapy less than 6 months prior were ineligible. Results: From 2009 to 2013, 48 patients enrolled on this trial, 2 did not receive any protocol treatment. Of the remaining 46 patients, 34 were male and 12 female, with a median age of 62 years (range 36-85). Treatment was feasible and only 1 patient did not complete the treatment course. Common grade 3 or higher acute toxicities were lymphopenia (46%), pain (22%), dysphagia (13%), radiation dermatitis (13%), mucositis (11%) and anorexia (11%). There were no grade 5 acute toxicities. Eight grade 3 late toxicities were observed, four of which were swallowing related. With a median follow-up of 1.38 years, the 1-year overall survival (OS) was 60.4% and 1-year recurrence-free survival was 34.1%. On univariate analysis, OS was significantly improved with young age (P = 0.01). OS was not associated with radiation dose, surgery before re-XRT or interval from prior XRT. Conclusions: Concurrent cisplatin and cetuximab with re-XRT is feasible and offers good treatment outcomes for patients with high-risk features. Younger patients had significantly improved OS. ClinicalTrials.Gov Identifier: NCT00833261. PMID- 29346520 TI - Uncovering the links between systemic hormones and oncogenic signaling in the pathogenesis of meningioma. PMID- 29346522 TI - Serious Fall Injury History and Adverse Health Outcomes After Initiating Hemodialysis Among Older U.S. Adults. AB - Background: Although older adults with predialysis chronic kidney disease are at higher risk for falls, the prognostic significance of a serious fall injury prior to dialysis initiation has not been well described in the end-stage renal disease population. Methods: We examined the association between a serious fall injury in the year prior to starting hemodialysis and adverse health outcomes in the year following dialysis initiation using a retrospective cohort study of U.S. Medicare beneficiaries >= 67 years old who initiated dialysis in 2010-2012. Serious fall injuries were defined using diagnostic codes for falls plus an injury (fracture, joint dislocation, or head injury). Health outcomes, defined as time-to-event variables within the first year of dialysis, included four outcomes: a subsequent serious fall injury, hospital admission, post-acute skilled nursing facility (SNF) utilization, and mortality. Results: Among this cohort of 81,653 initiating hemodialysis, 2,958 (3.6%) patients had a serious fall injury in the year prior to hemodialysis initiation. In the first year of dialysis, 7.6% had a subsequent serious fall injury, 67.6% a hospitalization, 30.7% a SNF claim, and 26.1% died. Those with versus without a serious fall injury in the year prior to hemodialysis initiation were at higher risk (hazard ratio, 95% confidence interval) for a subsequent serious fall injury (2.65, 2.41-2.91), hospitalization (1.11, 1.06 1.16), SNF claim (1.40, 1.30-1.50), and death (1.14, 1.06-1.22). Conclusions: For older adults initiating dialysis, a history of a serious fall injury may provide prognostic information to support decision making and establish expectations for life after dialysis initiation. PMID- 29346523 TI - Association Between Timed Up and Go Test and Future Dementia Onset. AB - Background: This study evaluated whether baseline results of the Timed Up and Go (TUG) test is associated with future dementia occurrence. Methods: Using the Korean National Health Insurance Service-National Health Screening Cohort database, we identified 49,283 subjects without a dementia diagnosis who participated in the National Screening Program for Transitional Ages at 66 years of age during 2007-2012. Gait impairment was defined as taking longer than 10 seconds to perform the TUG test. Dementia occurrence was defined by the first prescription for acetylcholinesterase inhibitors or N-Methyl-D-Aspartate receptor antagonist with an International Classification of Diseases 10th Revision (ICD 10) code for dementia (F00, F01, F02, F03, G30, F051, or G311) during 2007-2013. Cox proportional hazard regression models were used to assess the hazard ratios for dementia occurrence according to baseline TUG test results. Results: Mean follow-up period was 3.8 years. Incidence rates of dementia were 4.6 and 6.8 cases per 1,000 person-years in the normal and impaired TUG groups, respectively. The impaired TUG group showed a higher risk of total dementia incidence (adjusted hazard ratio [aHR], 1.34; 95% confidence interval [95% CI], 1.14-1.57). Subtype analysis showed that the impaired TUG group had a higher risk of Alzheimer's disease (aHR, 1.26; 95% CI, 1.06-1.51) and vascular dementia (aHR, 1.65; 95% CI, 1.19-2.30). Conclusions: The TUG test result was associated with future dementia occurrence. More vigilant follow-up and early intervention to prevent dementia would benefit elderly people with impaired TUG test result. PMID- 29346521 TI - The intracellular and intercellular cross-talk during subsidiary cell formation in Zea mays: existing and novel components orchestrating cell polarization and asymmetric division. AB - Background: Formation of stomatal complexes in Poaceae is the outcome of three asymmetric and one symmetric cell division occurring in particular leaf protodermal cells. In this definite sequence of cell division events, the generation of subsidiary cells is of particular importance and constitutes an attractive model for studying local intercellular stimulation. In brief, an induction stimulus emitted by the guard cell mother cells (GMCs) triggers a series of polarization events in their laterally adjacent protodermal cells. This signal determines the fate of the latter cells, forcing them to divide asymmetrically and become committed to subsidiary cell mother cells (SMCs). Scope: This article summarizes old and recent structural and molecular data mostly derived from Zea mays, focusing on the interplay between GMCs and SMCs, and on the unique polarization sequence occurring in both cell types. Recent evidence suggests that auxin operates as an inducer of SMC polarization/asymmetric division. The intercellular auxin transport is facilitated by the distribution of a specific transmembrane auxin carrier and requires reactive oxygen species (ROS). Interestingly, the local differentiation of the common cell wall between SMCs and GMCs is one of the earliest features of SMC polarization. Leucine-rich repeat receptor-like kinases, Rho-like plant GTPases as well as the SCAR/WAVE regulatory complex also participate in the perception of the morphogenetic stimulus and have been implicated in certain polarization events in SMCs. Moreover, the transduction of the auxin signal and its function are assisted by phosphatidylinositol-3-kinase and the products of the catalytic activity of phospholipases C and D. Conclusion: In the present review, the possible role(s) of each of the components in SMC polarization and asymmetric division are discussed, and an overall perspective on the mechanisms beyond these phenomena is provided. PMID- 29346524 TI - Effects of a Primary Care-Based Multifactorial Intervention on Physical and Cognitive Function in Frail, Elderly Individuals: A Randomized Controlled Trial. AB - Background: Detecting and managing frailty at early stages can prevent disability and other adverse outcomes. The study aim was to evaluate whether a multifactorial intervention program could modify physical and cognitive frailty parameters in elderly individuals. Methods: We conducted a multicenter, randomized, single-blind, parallel-group trial in community-living prefrail/frail elderly individuals in Barcelona. A total of 352 patients, aged >=65 years old with positive frailty screening, was randomized into two groups to receive a 12 week multidisciplinary intervention or usual care, with concealed allocation. The intervention consisted of: exercise training, intake of hyperproteic nutritional shakes, memory training, and medication review. Main outcome assessments with multivariate analysis were conducted at 3 and 18 months. Results: A total of 347 participants (98.6%) completed the study, mean age 77.3 years, 89 prefrail subjects (25.3%), and 75.3% female (n = 265). Eighteen-month assessments were performed in 76% of the sample. After 3 and 18 months, adjusted means difference between-groups showed significant improvements for the intervention group in all comparisons: Short Physical Performance Battery score improved 1.58 and 1.36 points (p < .001), handgrip strength 2.84 and 2.49 kg (p < .001), functional reach 4.3 and 4.52 cm (p < .001), and number of prescriptions decreased 1.39 and 1.09 (p < .001), respectively. Neurocognitive battery also showed significant improvements across all dimensions at 3 and 18 months. Conclusions: A physical, nutritional, neurocognitive, and pharmacological multifaceted intervention was effective in reversing frailty measures both at short-term and 18 months. Lasting benefits of a multi-intervention program among frail elderly individuals encourage its prioritization. PMID- 29346525 TI - Frailty Syndrome and Genomic Instability in Older Adults: Suitability of the Cytome Micronucleus Assay As a Diagnostic Tool. AB - Frailty, a condition involving increased risk of disability and mortality in older adults, has emerged as a reliable way to predict the effect of aging. Genomic instability may help to anticipate recognition of frail individuals and improving frailty outcomes. Our objective was to evaluate the potential of the micronucleus frequency, evaluated in lymphocytes and buccal cells, to anticipate frailty identification and improve diagnosis reliability. Our results, from a group of older adults over 65, showed that frail individuals had significantly higher frequencies of micronucleus in lymphocytes (19.16 +/- 0.66 vs. 13.07 +/- 0.78, p < .001) and of binucleated buccal cells (82.65 +/- 3.42 vs. 37.16 +/- 2.85, p < .001) and lower frequencies of pyknotic and condensed chromatin buccal cells, than nonfrail subjects. When cognitive status was considered, similar results were obtained. Moreover, the presence of frailty and cognitive impairment were independently related to increases in frequencies of lymphocyte micronucleus and binucleated buccal cells. Our results encourage the use of micronucleus frequency in lymphocytes as a complement to clinical parameters in frailty identification. However, these results have to be further evaluated in prefrail patients, to better understand the connection between genomic instability and frailty and to establish these parameters as actual biomarkers of frailty in clinical practice. PMID- 29346526 TI - What Is the Impact of Physical Activity and Physical Function on the Development of Multimorbidity in Older Adults Over Time? A Population-Based Cohort Study. AB - Background: Multimorbidity is recognized internationally as having a serious impact on health outcomes. It is associated with reduced quality of life, increased health care utilization, and future functional decline. Physical activity is associated with good health and psychological well-being. The aim of this study was to identify the impact of physical activity and physical function on the development and worsening of multimorbidity over time. Methods: Using The Irish Longitudinal Study on Ageing (TILDA), we analyzed 4,823 participants >=50 years with and without multimorbidity. Multimorbidity was defined as the presence of >=2 chronic conditions. Development of multimorbidity was measured as the accrual of additional conditions over a 2-year period. Physical activity and physical function were measured using the International Physical Activity Questionnaire (IPAQ), gait speed (m/sec), and grip strength (kg). Results: Sixteen groups of chronic conditions were included in analyses. 53.7% of included participants had multimorbidity at baseline and 71.7% at follow-up. Six hundred and thirty-eight of 2,092 (30.4%) participants without multimorbidity and 1,005 of 2,415 (41.6%) with existing multimorbidity developed new condition/s. Gait speed (relative risk [RR] = 0.67, confidence interval [CI]: 0.49-0.90), grip strength (RR = 0.98, CI: 0.97-0.99), and age (compared to 50-59 years, 60-69: RR = 1.30, CI: 1.11-1.52; >=70: RR = 1.35, CI: 1.03-1.77) were significantly associated with the development of multimorbidity and accrual of additional conditions. Conclusion: These results show that physical function is associated with the development and worsening of multimorbidity over time. They support the recent National Institute for Health & Care Excellence (NICE) Guidance on multimorbidity that suggests that patients with multimorbidity and reduced gait speed should be identified and targeted for interventions to improve health outcomes. PMID- 29346527 TI - Progesterone effects on extracellular vesicles in the sheep uterus. AB - Progesterone (P4) acts via the endometrium to promote conceptus growth and implantation for pregnancy establishment. Many cells release extracellular vesicles (EVs) that are membrane-bound vesicles of endosomal and plasma membrane origin. In sheep, endometrial-derived EVs were found to traffic to the conceptus trophectoderm. Thus, EVs are hypothesized to be an important mode of intercellular communication by transferring select RNAs, proteins, and lipids between the endometrium and conceptus. Electron microscopy analysis found that the endometrial luminal and glandular epithelia were the primary source of EVs in the uterus of cyclic sheep. Size exclusion chromatography and nanoparticle tracking analysis (NTA) found that total EV number in the uterine lumen increased from day 10 to 14 in cyclic sheep. Next, ewes were ovariectomized and hormone replaced to determine effects of P4 on the endometrium and EVs in the uterine lumen. Transcriptome analyses found that P4 regulated 1611 genes and nine miRNAs in the endometrium. Total EV number in the uterine lumen was increased by P4 treatment. Small RNA sequencing of EVs detected expression of 768 miRNAs and determined that P4 regulated seven of those miRNAs. These studies provide fundamental new information on how P4 influences endometrial function to regulate conceptus growth for pregnancy establishment in sheep. PMID- 29346528 TI - A novel stromal lncRNA signature reprograms fibroblasts to promote the growth of oral squamous cell carcinoma via LncRNA-CAF/interleukin-33. AB - Stromal carcinoma-related fibroblasts (CAFs) are the main type of non-immune cells in the tumor microenvironment (TME). CAFs interact with cancer cells to promote tumor proliferation. Long non-coding RNAs (lncRNAs) are known to regulate cell growth, apoptosis and metastasis of cancer cells, but their role in stromal cells is unclear. Using RNA sequencing, we identified a stromal lncRNA signature during the transformation of CAFs from normal fibroblasts (NFs) in oral squamous cell carcinoma (OSCC). We uncovered an uncharacterized lncRNA, FLJ22447, which was remarkably up-regulated in CAFs, referred to LncRNA-CAF (Lnc-CAF) hereafter. Interleukin-33 (IL-33) was mainly located in the stroma and positively co expressed with Lnc-CAF to elevate the expression of CAF markers (alpha-SMA, vimentin and N-cadherin) in fibroblasts. In a co-culture system, IL-33 knockdown impaired Lnc-CAF-mediated stromal fibroblast activation, leading to decreased proliferation of tumor cells. Mechanistically, Lnc-CAF up-regulated IL-33 levels and prevented p62-dependent autophagy-lysosome degradation of IL-33, which was independent of LncRNA-protein scaffold effects. Treatment with the autophagy inducer, rapamycin, impaired the proliferative effect of Lnc-CAF/IL-33 by promoting IL-33 degradation. In turn, tumor cells further increased Lnc-CAF levels in stromal fibroblasts via exosomal Lnc-CAF. In patients with OSCC, high Lnc-CAF/IL-33 expression correlated with high TNM stage (n = 140). Moreover, high Lnc-CAF expression predicted poor prognosis. In vivo, Lnc-CAF knockdown restricted tumor growth and was associated with decreased Ki-67 expression and alpha-SMA+ CAF in the stroma. In conclusion, we identified a stromal lncRNA signature, which reprograms NFs to CAFs via Lnc-CAF/IL-33 and promotes OSCC development. PMID- 29346529 TI - Echocardiographic criteria to detect unicuspid aortic valve morphology. AB - Aims: Unicuspid aortic valve (UAV) is a rare congenital malformation associated with severe aortic stenosis or regurgitation. This study aimed to systematically determine echocardiographic criteria to identify UAV. Methods and results: All patients underwent a preoperative baseline examination, including echocardiography. A total of 69 patients with intraoperatively confirmed UAV underwent an aortic valve repair procedure between August 2001 and May 2011. To compare the findings of UAV cases with those of other valve morphologies, we examined 99 consecutive patients with a bicuspid aortic valve (BAV) and 103 consecutive patients with a tricuspid aortic valve (TAV) undergoing isolated aortic valve surgery before May 2016. The mean age of the 271 patients was 44.2 +/- 12.8 years; 85% were male, with a mean body mass index of 26.2 +/- 4.0 kg/m2. Patients with UAV were younger and had fewer co-morbidities than patients with BAV or TAV, respectively. The major criteria for the echocardiographic diagnosis of UAV were defined based on our preoperative examination as follows: (i) single commissural attachment zone, (ii) rounded, leaflet-free edge on the opposite side of the commissural attachment zone, (iii) eccentric valvular orifice during systole, and (iv) patient age <20 years and mean transvalvular gradient >15 mmHg. The minor criteria were defined as an associated thoracic aortopathy and age <40 years. Three out of the four major criteria or two out of the four major criteria and one minor criterion were met in all patients with UAV and in none of the patients with BAV or TAV. Associated 95% confidence intervals were calculated for each estimate of sensitivity (94.7-100%) and specificity (98.1-100%), indicating that an adequate number of patients were included in each of the three groups. Conclusion: The proposed echocardiographic score appears to be a specific and sensitive method to distinguish UAV from BAV and TAV. PMID- 29346530 TI - Bacterioplankton composition in tropical high-elevation lakes of the Andean plateau. AB - High-elevation lakes in the tropics are subject to extreme environmental fluctuations and microbes may harbor a unique genomic repertoire, but their composition and diversity are largely unknown. Here, we compared the planktonic bacterial community composition (BCC) and diversity of three tropical lakes located in the high Andean plateau (>=4400 m above sea level) during the dry and wet season. Diversity in these lakes was higher in the cool and wet season than in the warm and dry one. Operational taxonomic units (OTUs) composition was significantly different among lakes and between seasons. Members of the class Opitutae, Spartobacteria, Burkholderiales and Actinobacteria were dominant, but only the hgcI clade (Actinobacteria) and the Comamonadaceae family (Burkholderiales) were shared between seasons among the three lakes. In general, a large percentage (up to 42%) of the rare OTUs was unclassified even at the family level. In one lake, a pycnocline and an anoxic water layer with high abundance of Thiocapsa sp. was found in the wet season indicating that the known polymictic thermal condition is not always given. Our study highlights the particular BCC of tropical high-elevation lakes and also how little is known about the variability in physico-chemical conditions of these ecosystems. PMID- 29346531 TI - Doppler assessment of aortic stenosis: a 25-operator study demonstrating why reading the peak velocity is superior to velocity time integral. AB - Aims: Measurements with superior reproducibility are useful clinically and research purposes. Previous reproducibility studies of Doppler assessment of aortic stenosis (AS) have compared only a pair of observers and have not explored the mechanism by which disagreement between operators occurs. Using custom designed software which stored operators' traces, we investigated the reproducibility of peak and velocity time integral (VTI) measurements across a much larger group of operators and explored the mechanisms by which disagreement arose. Methods and results: Twenty-five observers reviewed continuous wave (CW) aortic valve (AV) and pulsed wave (PW) left ventricular outflow tract (LVOT) Doppler traces from 20 sequential cases of AS in random order. Each operator unknowingly measured each peak velocity and VTI twice. VTI tracings were stored for comparison. Measuring the peak is much more reproducible than VTI for both PW (coefficient of variation 10.1 vs. 18.0%; P < 0.001) and CW traces (coefficient of variation 4.0 vs. 10.2%; P < 0.001). VTI is inferior because the steep early and late parts of the envelope are difficult to trace reproducibly. Dimensionless index improves reproducibility because operators tended to consistently over-read or under-read on LVOT and AV traces from the same patient (coefficient of variation 9.3 vs. 17.1%; P < 0.001). Conclusion: It is far more reproducible to measure the peak of a Doppler trace than the VTI, a strategy that reduces measurement variance by approximately six-fold. Peak measurements are superior to VTI because tracing the steep slopes in the early and late part of the VTI envelope is difficult to achieve reproducibly. PMID- 29346532 TI - What color should glacier algae be? An ecological role for red carbon in the cryosphere. AB - Red-colored secondary pigments in glacier algae play an adaptive role in melting snow and ice. We advance this hypothesis using a model of color-based absorption of irradiance, an experiment with colored particles in snow, and the natural history of glacier algae. Carotenoids and phenols-astaxanthin in snow-algae and purpurogallin in ice-algae-shield photosynthetic apparatus by absorbing overabundant visible wavelengths, then dissipating the excess radiant energy as heat. This heat melts proximal ice crystals, providing liquid-water in a 0 degrees C environment and freeing up nutrients bound in frozen water. We show that purple-colored particles transfer 87%-89% of solar energy absorbed by black particles. However, red-colored particles transfer nearly as much (85%-87%) by absorbing peak solar wavelengths and reflecting the visible wavelengths most absorbed by nearby ice and snow crystals; this latter process may reduce potential cellular overheating when snow insulates cells. Blue and green particles transfer only 80%-82% of black particle absorption. In the experiment, red-colored particles melted 87% as much snow as black particles, while blue particles melted 77%. Green-colored snow-algae naturally occupy saturated snow where water is non-limiting; red-colored snow-algae occupy drier, water-limited snow. In addition to increasing melt, we suggest that esterified astaxanthin in snow-alga cells increases hydrophobicity to remain surficial. PMID- 29346533 TI - Density of Emerald Ash Borer (Coleoptera: Buprestidae) Adults and Larvae at Three Stages of the Invasion Wave. AB - Emerald ash borer (EAB) (Agrilus planipennis Fairmaire) (Coleoptera: Buprestidae), an invasive phloem-feeding buprestid, has killed hundreds of millions of ash (Fraxinus spp.) trees in the United States and two Canadian provinces. We evaluated EAB persistence in post-invasion sites and compared EAB adult captures and larval densities in 24 forested sites across an east-west gradient in southern Michigan representing the Core (post-invasion), Crest (high EAB populations), and Cusp (recently infested areas) of the EAB invasion wave. Condition of green ash (Fraxinus pennsylvanica Marsh) trees were recorded in fixed radius plots and linear transects in each site. Ash mortality was highest in Core sites in the southeast, moderate in Crest sites in central southern Michigan, and low in Cusp sites in the southwest. Traps and trap trees in Crest sites accounted for 75 and 60% of all EAB beetles captured in 2010 and 2011, respectively. Populations of EAB were present in all Core sites and traps in these sites captured 13% of all beetles each year. Beetle captures and larval densities at Cusp sites roughly doubled between 2010 and 2011, reflecting the increasing EAB populations. Sticky bands on girdled trees captured the highest density of EAB beetles per m2 of area, while baited double-decker traps had the highest detection rates and captured the most beetles. Larval densities were higher on girdled ash than on similar ungirdled trees and small planted trees. Woodpecker predation and a native larval parasitoid were present in all three invasion regions but had minor effects on ash survival and EAB densities. PMID- 29346534 TI - Microbial community structure of sea spray aerosols at three California beaches. AB - We characterized the microbial communities in sea spray aerosols (SSA), water and sand of three beaches in central California (Cowell Beach, Baker Beach and Lovers Point) by sequencing the V4 region of the 16S rRNA gene. Average concentrations of 16S rRNA genes in SSA ranged from 2.4 * 104 to 1.4 * 105 gene copies per m3 of air. A total of 9781 distinct OTUs were identified in SSA and of these, 1042 OTUs were found in SSA of all beaches. SSA microbial communities included marine taxa, as well as some associated with the terrestrial environment. SSA taxa included organisms that play important roles in biogeochemical cycling of elements such as Planctomyces and Synechococcus, as well as those representing potential pathogens and fecal indicator bacteria including Staphylococcus epidermidis and Enterococcus spp. There were a large number of shared OTUs among SSA and water, and there was relatively high similarity between SSA and water communities. Results are consistent with a conceptual model where SSA is generated by breaking waves and bubble bursting in marine waters and that enables the transport of microorganisms from the sea to sand or other environments. PMID- 29346535 TI - Tricuspid regurgitation in acute heart failure: is there any incremental risk? AB - Aim: Significant tricuspid regurgitation (TR) is common in heart failure (HF) and portends poor prognosis. We sought to determine whether the poor outcome results from the TR itself, or whether the TR is a surrogate marker of advanced left sided myocardial or valvular heart disease. Methods and results: We studied 639 patients admitted for acute HF. The relationship between TR severity and the endpoint of readmission for HF or mortality was assessed after adjustment for multiple clinical and echocardiographic parameters. Higher TR grade was associated with higher congestion score and with other cardiac abnormalities including reduced left ventricular systolic function, moderate or severe mitral regurgitation, pulmonary hypertension (PH, defined as pulmonary artery systolic pressure >= 50 mmHg), and right ventricular dysfunction (all P < 0.001). Only 7% of patients with moderate or severe TR were free of other cardiac lesions. In adjusted models, moderate or severe TR was not associated with readmission for HF or mortality [hazard ratio (HR) 1.24, 95% confidence interval (95% CI) 0.97 1.57]. Patients with moderate/severe TR had similar risk for HF readmission or death compared with patients with trivial/mild TR when PH was not present (HR 1.17; 95% CI 0.78-1.75, P = 0.40) whereas the risk was higher in moderate/severe TR and PH (HR 1.78; 95% CI 1.34-2.36, P < 0.0001). Conclusion: Patients presenting with symptomatic HF and significant TR have multiple coexisting cardiac abnormalities. TR provides no additive risk in the presence of normal or mildly elevated pulmonary pressures. However, it is associated with excess rehospitalizations and mortality in patients with PH. PMID- 29346536 TI - Residual carcinoma cells after chemoradiotherapy for esophageal squamous cell carcinoma patients: striving toward appropriate judgment of biopsy. AB - In esophageal squamous cell carcinoma (ESCC) patients who are treated with chemoradiotherapy (CRT), identification of the presence or absence of residual or recurrent carcinoma is usually pivotal in their clinical management. In addition, the extent of carcinoma invasion into the esophageal wall could determine the clinical outcome of these patients following CRT. Therefore, in this study, we evaluated the response to CRT both macroscopically and histologically in a consecutive series of 42 ESCC patients receiving neoadjuvant chemoradiotherapy following curative esophageal resection at Tohoku University Hospital between August 2011 and December 2012. The histological grading of tumor regression was as follows: grade 3, markedly effective (no viable residual tumor cells); grade 2, moderately effective (residual tumor cells in less than one-third of the tumor); grade 1, slightly effective (1b, residual tumor cells in one-third to two thirds of the tumor; 1a, residual tumor cells in more than two-thirds of the tumor); and grade 0, ineffective. In this study, we selected grade 2 and 1b cases because they might show a complete response with definitive CRT. We evaluated the presence of any residual in situ lesions and tumor depth in detail. The grading of tumor regression in primary sites was as follows: grade 3 (7 cases), grade 2 (16 cases), grade 1b (13 cases), and grade 1a (6 cases). The concordance rate between macroscopic and histopathological evaluation on the depth of the tumor was 40% (17/42). Among 29 cases (grade 2 and grade 1b), intraepithelial lesions were not detected in 17 cases, and tumor nests were not detected in the lamina propria mucosae in 9 cases. The results of this study highlight the difficulties of detecting residual carcinoma cells using conventional endoscopic biopsy in patients who have received CRT. Therefore, when residual cancer is clinically suspected in patients who have received CRT, the biopsy specimen should be obtained from the deep layer of the esophagus whenever possible. Additionally, close follow-up is required using positron emission tomography/computed tomography, endoscopy, and other radiological evaluations. PMID- 29346537 TI - Cerebral mitochondrial dysfunction associated with deep hypothermic circulatory arrest in neonatal swine. AB - OBJECTIVES: Controversy remains regarding the use of deep hypothermic circulatory arrest (DHCA) in neonatal cardiac surgery. Alterations in cerebral mitochondrial bioenergetics are thought to contribute to ischaemia-reperfusion injury in DHCA. The purpose of this study was to compare cerebral mitochondrial bioenergetics for DHCA with deep hypothermic continuous perfusion using a neonatal swine model. METHODS: Twenty-four piglets (mean weight 3.8 kg) were placed on cardiopulmonary bypass (CPB): 10 underwent 40-min DHCA, following cooling to 18 degrees C, 10 underwent 40 min DHCA and 10 remained at deep hypothermia for 40 min; animals were subsequently rewarmed to normothermia. 4 remained on normothermic CPB throughout. Fresh brain tissue was harvested while on CPB and assessed for mitochondrial respiration and reactive oxygen species generation. Cerebral microdialysis samples were collected throughout the analysis. RESULTS: DHCA animals had significantly decreased mitochondrial complex I respiration, maximal oxidative phosphorylation, respiratory control ratio and significantly increased mitochondrial reactive oxygen species (P < 0.05 for all). DHCA animals also had significantly increased cerebral microdialysis indicators of cerebral ischaemia (lactate/pyruvate ratio) and neuronal death (glycerol) during and after rewarming. CONCLUSIONS: DHCA is associated with disruption of mitochondrial bioenergetics compared with deep hypothermic continuous perfusion. Preserving mitochondrial health may mitigate brain injury in cardiac surgical patients. Further studies are needed to better understand the mechanisms of neurological injury in neonatal cardiac surgery and correlate mitochondrial dysfunction with neurological outcomes. PMID- 29346538 TI - Vitamin K5 is an efficient photosensitizer for ultraviolet A light inactivation of bacteria. AB - Photodynamic treatment combining light and a photosensitizer molecule can be an effective method to inactivate pathogenic bacteria. This study identified vitamin K5 as an efficient photosensitizer for ultraviolet light A (UVA)-induced bacterial inactivation. Six bacterial species, Bacillus cereus (vegetative form), Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Staphylococcus epidermidis, Klebsiella pneumoniae, and two species of antibiotic-resistant bacteria, Pseudomonas aeruginosa* and Staphylococcus aureus*, were suspended in aqueous solutions with or without vitamin K5 and exposed to UVA irradiation. UVA irradiation (5.8 J cm-2) with vitamin K5 (1600 MUmol l-1) reduced the colony forming units (CFU) of these bacteria by three to seven logs. Antibiotic resistant bacteria were also susceptible to the bactericidal effects of UVA and vitamin K5 combination treatment. Inactivation of bacteria in human plasma required higher doses of UVA light and vitamin K5. UVA irradiation (30 J cm-2) with vitamin K5 (2000 MUmol l-1) reduced E. coli and S. aureus spiked into human plasma by seven logs CFU/ml. Reactive oxygen species, such as superoxide anion radicals and hydroxyl radicals, were found to be generated in vitamin K5 aqueous solution after UVA irradiation, suggesting these oxygen species may mediate the inactivation of the bacteria. PMID- 29346539 TI - CORRIGENDUM FOR "Functional Characterization of MicroRNA-27a-3p Expression in Human Polycystic Ovary Syndrome". PMID- 29346540 TI - Blood and lymphatic vessels contribute to the impact of the immune microenvironment on clinical outcome in non-small-cell lung cancer. AB - OBJECTIVES: Lymphangiogenesis plays a critical role in the immune response, tumour progression and therapy effectiveness. The aim of this study was to determine whether the interplay between the lymphatic and the blood microvasculature, tumour-infiltrating lymphocytes and the programmed death 1 (PD 1)/programmed death ligand 1 (PD-L1) immune checkpoint constitutes an immune microenvironment affecting the clinical outcome of patients with non-small-cell lung cancer. METHODS: Samples from 50 squamous cell carcinomas and 42 adenocarcinomas were subjected to immunofluorescence to detect blood and lymphatic vessels. CD3pos, CD8pos and PD-1pos tumour-infiltrating lymphocytes and tumour PD-L1 expression were assessed by immunohistochemical analysis. RESULTS: Quantification of vascular structures documented a peak of lymphatics at the invasive margin together with a decreasing gradient of blood and lymphatic vessels from the peritumour area throughout the neoplastic core. Nodal involvement and pathological stage were strongly associated with vascularization, and an increased density of vessels was detected in samples with a higher incidence of tumour-infiltrating lymphocytes and a lower expression of PD-L1. Patients with a high PD-L1 to PD-1 ratio and vascular rarefaction had a gain of 10 months in overall survival compared to those with a low ratio and prominent vascularity. CONCLUSIONS: Microvessels are an essential component of the cancer immune microenvironment. The clinical impact of the PD-1/PD-L1-based immune contexture may be implemented by the assessment of microvascular density to potentially identify patients with non-small-cell lung cancer who could benefit from immunotherapy and antiangiogenic treatment. PMID- 29346541 TI - Practical implications of erythromycin resistance gene diversity on surveillance and monitoring of resistance. AB - Use of antibiotics in human and animal medicine has applied selective pressure for the global dissemination of antibiotic-resistant bacteria. Therefore, it is of interest to develop strategies to mitigate the continued amplification and transmission of resistance genes in environmental reservoirs such as farms, hospitals and watersheds. However, the efficacy of mitigation strategies is difficult to evaluate because it is unclear which resistance genes are important to monitor, and which primers to use to detect those genes. Here, we evaluated the diversity of one type of macrolide antibiotic resistance gene (erm) in one type of environment (manure) to determine which primers would be most informative to use in a mitigation study of that environment. We analyzed all known erm genes and assessed the ability of previously published erm primers to detect the diversity. The results showed that all known erm resistance genes group into 66 clusters, and 25 of these clusters (40%) can be targeted with primers found in the literature. These primers can target 74%-85% of the erm gene diversity in the manures analyzed. PMID- 29346542 TI - Hepatitis B in Moroccan-Dutch: a qualitative study into determinants of screening participation. AB - Background: Chronic hepatitis B (HBV) leads to an increased risk for liver cirrhosis and liver cancer. In the Netherlands, chronic HBV prevalence in the general population is 0.20%, but 3.77% in first generation immigrants. Our aim was to identify determinants associated with the intention to participate in HBV testing among first generation Moroccan immigrants, one of the two largest immigrant groups targeted for screening. Methods: Semi-structured interviews were held with first (n = 9) and second generation (n = 10) Moroccan-Dutch immigrants, since second generation immigrants frequently act as their parents' brokers in healthcare. Results: Most participants had little knowledge about hepatitis B, but had a positive attitude towards screening. Facilitators for screening intention were perceived susceptibility to and severity of disease, positive attitude regarding prevention, wishing to know their hepatitis B status and to prevent potential hepatitis B transmission to others. Additional cultural facilitators included fear (of developing cancer), and existing high health care utilization; a religious facilitator was the responsibility for one's own health and that of others. Barriers included lack of awareness and knowledge, practical issues, not having symptoms, negative attitude regarding prevention, fear about the test result and low-risk perception. A cultural barrier was shame and stigma, and a religious barrier was fatalism. Conclusion: We identified important facilitators and barriers, which we found, can be interpreted differently. Specific and accurate information should be provided, accompanied by strategies to address shame and stigma, in which Islamic religious leaders could play a role in bringing information across. PMID- 29346543 TI - The Impact of Reported Beta-Lactam Allergy in Hospitalized Patients With Hematologic Malignancies Requiring Antibiotics. AB - Background: Patients hospitalized with hematologic malignancy are particularly vulnerable to infection. The impact of reported beta-lactam (BL) allergy in this population remains unknown. Methods: This was a retrospective cohort study of adult inpatients with hematologic malignancy admitted at 2 tertiary care hospitals from 2010 through 2015. The primary outcome was hospital length of stay (LOS) after administration of the first antibiotic. Secondary outcomes included readmission, mortality, complications, hospital charges, and antibiotic usage. Our goal was to define the impact of BL-only allergy (BLOA) label on clinical outcomes compared to those with no BL allergy (NBLA) in hematologic malignancy inpatients who required systemic antibiotics. Results: In our cohort (n = 4671), 38.3% had leukemia, 4.9% had Hodgkin lymphoma, 36.1% had non-Hodgkin lymphoma, and 20.7% had multiple myeloma. Among patients, 35.1% reported antibiotic allergy, and 14.1% (n = 660) had BLOA (including 9.3% with penicillin-only allergy and 3.3% cephalosporin-only allergy). Patients with BLOA had longer median LOS compared to patients with NBLA (11.3 vs 7.6 days, P < .001), which remained significant after multivariable adjustment. Patients with BLOA also had significantly worse outcomes in terms of mortality rate at 30 days (7.6% vs 5.3%, P = .017) and 180 days (15.8% vs 12.2%, P = .013), 30-day readmission rate, Clostridium difficile rate, hospital charges ($223 046 vs $173 256, P < .001), antibiotic classes used, and antibiotic duration. Conclusions: In hospitalized patients with hematologic malignancy, patients with reported BL allergy had worse clinical outcomes and higher healthcare cost than those without BL allergy label. PMID- 29346544 TI - So low... so far so good: neurocognitive impact of lowering LDL-C levels with PCSK9 inhibitors. PMID- 29346546 TI - Identifying cardiac pathologies with coronary wave intensity analysis: an enrichment to the ever-expanding coronary haemodynamics armamentarium? PMID- 29346545 TI - Influence of Nicotine Metabolism Ratio on [11C]-(+)-PHNO PET Binding in Tobacco Smokers. AB - Background: Identifying the biological basis of smoking cessation success is of growing interest. The rate of nicotine metabolism, measured by the nicotine metabolite ratio, affects multiple aspects of nicotine dependence. Fast nicotine metabolizers tend to smoke more, experience more withdrawal and craving, and have lower cessation rates compared with slow metabolizers. The nicotine metabolite ratio predicts treatment response, and differences in brain activation between fast metabolizers and slow metabolizers have been reported in fMRI studies. As reinforcing/rewarding effects of tobacco are associated with dopamine transmission, the purpose of the present study was to study the dopaminergic system in human smokers based on their nicotine metabolite ratio. Methods: The first aim of the study was to explore if there were differences in D2 and D3 receptor binding between fast metabolizers and slow metabolizers during abstinence. The second aim was to explore smoking-induced dopamine release in both groups. Participants underwent 2 [11C]-(+)-PHNO PET scans: one scan during abstinence and the other after smoking a tobacco cigarette. Subjective measures were recorded and blood was drawn for measurement of nicotine and cotinine levels. Results: During abstinence, slow metabolizers (n = 13) had lower [11C] (+)-PHNO binding potential than fast metabolizers (n = 15) restricted to the D2 regions of the associative striatum and sensorimotor striatum. After smoking a cigarette, [11C]-(+)-PHNO binding potential was decreased in the limbic striatum and ventral pallidum, suggestive of increases in dopamine, but there were no nicotine metabolite ratio differences. Conclusions: Further studies are required to delineate if differences in [11C]-(+)-PHNO binding between slow metabolizers and fast metabolizers at abstinence baseline are preexisting traits or induced by prolonged tobacco use. PMID- 29346548 TI - Impact of the EURO-2016 football cup on emergency department visits related to alcohol and injury. AB - In Marseille, the 2016 EURO football cup days were independently associated with a 43% increase in alcohol-related visits in the Emergency Department (ED). Patients admitted for alcohol consumption were younger (41 vs. 46.6; P < 0.001), more often male (82.8% vs. 60.1%; P < 0.001) and more often admitted as inpatients (24.0% vs. 16.5%; P = 0.03) than those admitted for injury. Unlike reported in previous studies, injury-related visits did not increase. This could be explained by coding practice variability between EDs (alcohol or injury). To account for this variability, both diagnosis groups must be separately included when using ED data for preparing and monitoring major gatherings. PMID- 29346547 TI - How to do (or not to do) ... a health financing incidence analysis. AB - Financing incidence analysis (FIA) assesses how the burden of health financing is distributed in relation to household ability to pay (ATP). In a progressive financing system, poorer households contribute a smaller proportion of their ATP to finance health services compared to richer households. A system is regressive when the poor contribute proportionately more. Equitable health financing is often associated with progressivity. To conduct a comprehensive FIA, detailed household survey data containing reliable information on both a cardinal measure of household ATP and variables for extracting contributions to health services via taxes, health insurance and out-of-pocket (OOP) payments are required. Further, data on health financing mix are needed to assess overall FIA. Two major approaches to conducting FIA described in this article include the structural progressivity approach that assesses how the share of ATP (e.g. income) spent on health services varies by quantiles, and the effective progressivity approach that uses indices of progressivity such as the Kakwani index. This article provides some detailed practical steps for analysts to conduct FIA. This includes the data requirements, data sources, how to extract or estimate health payments from survey data and the methods for assessing FIA. It also discusses data deficiencies that are common in many low- and middle-income countries (LMICs). The results of FIA are useful in designing policies to achieve an equitable health system. PMID- 29346550 TI - Coronary microvascular dysfunction and heart failure with preserved ejection fraction as female-pattern cardiovascular disease: the chicken or the egg? PMID- 29346549 TI - Transcriptome and functional analysis in a Drosophila model of NGLY1 deficiency provides insight into therapeutic approaches. AB - Autosomal recessive loss-of-function mutations in N-glycanase 1 (NGLY1) cause NGLY1 deficiency, the only known human disease of deglycosylation. Patients present with developmental delay, movement disorder, seizures, liver dysfunction and alacrima. NGLY1 is a conserved cytoplasmic component of the Endoplasmic Reticulum Associated Degradation (ERAD) pathway. ERAD clears misfolded proteins from the ER lumen. However, it is unclear how loss of NGLY1 function impacts ERAD and other cellular processes and results in the constellation of problems associated with NGLY1 deficiency. To understand how loss of NGLY1 contributes to disease, we developed a Drosophila model of NGLY1 deficiency. Loss of NGLY1 function resulted in developmental delay and lethality. We used RNAseq to determine which processes are misregulated in the absence of NGLY1. Transcriptome analysis showed no evidence of ER stress upon NGLY1 knockdown. However, loss of NGLY1 resulted in a strong signature of NRF1 dysfunction among downregulated genes, as evidenced by an enrichment of genes encoding proteasome components and proteins involved in oxidation-reduction. A number of transcriptome changes also suggested potential therapeutic interventions, including dysregulation of GlcNAc synthesis and upregulation of the heat shock response. We show that increasing the function of both pathways rescues lethality. Together, transcriptome analysis in a Drosophila model of NGLY1 deficiency provides insight into potential therapeutic approaches. PMID- 29346551 TI - Brazil's Family Health Strategy: factors associated with programme uptake and coverage expansion over 15 years (1998-2012). AB - Universal Health Coverage (UHC) is one of the United Nations Sustainable Development Goals (SDGs). Achieving UHC will require strong health systems to promote and deliver equitable and integrated healthcare services through primary healthcare (PHC). In Brazil, the Family Health Strategy (FHS) delivers PHC through the public health system. Created in 1994, the FHS covered almost 123 million individuals (63% of the Brazilian population) by 2015. The FHS has been associated with many health improvements, but gaps in coverage still remain. This article examines factors associated with the implementation and expansion of the FHS across 5419 Brazilian municipalities from 1998 to 2012. The proportion of the municipal population covered by the FHS over time was assessed using a longitudinal multilevel model for change that accounted for variables covering eight domains: economic development, healthcare supply, healthcare needs/access, availability of other sources of healthcare, political context, geographical isolation, regional characteristics and population size. Data were obtained from multiple publicly available sources. During the 15-year study period, national coverage of the FHS increased from 4.4% to 54%, with 58% of the municipalities having population coverage of 95% or more, and municipalities that had not adopted the programme decreased from 86.4% to 4.9%. The increase in FHS uptake and coverage was not homogenous across municipalities, and was positively associated with small population size, low population density, low coverage of private health insurance, low level of economic development, alignment of the political party of the Mayor and the state Governor, and availability of healthcare supply. Efforts to expand the FHS coverage will need to focus on increasing the availability of health personnel, devising financial incentives for municipalities to uptake/expand the FHS and devising new policies that encompass both private and public sectors. PMID- 29346552 TI - Safety profile of near-zero fluoroscopy atrial fibrillation ablation with non fluoroscopic catheter visualization: experience from 1000 consecutive procedures. AB - Aims: Efforts to reduce radiation exposure during catheter ablation procedures have included the use of various technological measures. Significant results have been achieved to the point where near lead-free procedures in routine clinical practice has become a realistic goal. The integration of MediGuide technology [non-fluoroscopic catheter visualization technology (NFCV)] and three-dimensional electroanatomical mapping is one of the methods developed in response to radiation reduction initiatives. We aimed to evaluate the impact of this NFCV technology on atrial fibrillation (AF) catheter ablation in terms of reduction in procedural and radiation time as well as safety aspects. Methods and results: Between March 2012 and March 2017, a total of 1000 patients underwent AF ablation using NFCV. Patient and procedural data and complications within the first 3 months were entered into a prospective registry and analysed. We assessed procedure time, fluoroscopy time, and dose and complications. In a cohort of 1000 patients (62.9 +/- 11 years; 72% men; left ventricular ejection fraction 57%; and left atrial diameter 43.2 mm), the median procedure time was 120 min, median fluoroscopy time was 0.90 min, and the median fluoroscopy dose of was 345.1 cGy . cm2. Stratification of the first (Group 1) and the last 250 (Group 2) cases showed significant improvement in the median procedure time (140-110 min) and reduction in the median fluoroscopy time (6-0.5 min) and the median dose (2263 151.9 cGy . cm2). The overall complication rate was 2.0%. Conclusion: The use of NFCV technology enables safe, consistent, and 'near lead-free' performance of AF ablation in routine clinical practice. PMID- 29346553 TI - Prediction of Barrett's esophagus: are we there yet? PMID- 29346554 TI - Functional Roles of Sex-Biased, Growth Hormone-Regulated MicroRNAs miR-1948 and miR-802 in Young Adult Mouse Liver. AB - Sex-specific temporal patterns of pituitary growth hormone (GH) secretion determine the sex-biased transcription of hundreds of genes in the liver and impart important sex differences in liver physiology, metabolism, and disease. Sex differences in hepatic gene expression vary widely, ranging from less than twofold to >1000-fold in the mouse. Here, we use small RNA sequencing to discover 24 sex-biased mouse liver microRNAs (miRNAs), and then investigate the roles of two of these miRNAs in GH-regulated liver sex differences. Studies in prepubertal and young adult mice, and in mice in which pituitary hormones are ablated or where sex-specific hepatic GH signaling is dysregulated, demonstrated that the male-biased miR-1948 and the female-biased miR-802 are both regulated by sex specific pituitary GH secretory patterns, acquire sex specificity at puberty, and are dependent on the GH-activated transcription factor STAT5 for their sex specific expression. Both miRNAs are within genomic regions characterized by sex biased chromatin accessibility. miR-1948, an uncharacterized miRNA, has essential features for correct Drosha/Dicer processing, generates a bona fide mature miRNA with strong strand bias for the 5p arm, and is bound by Argonaute in liver tissue, as is miR-802. In vivo studies using inhibitory locked nucleic acid sequences revealed that miR-1948-5p preferentially represses female-biased messenger RNAs (mRNAs) and induces male-biased mRNAs in male liver; conversely, miR-802-5p preferentially represses male-biased mRNAs and increases levels of female-biased mRNAs in female liver. Cytochrome P450 mRNAs were strongly enriched as targets of both miRNAs. Thus, miR-1948-5p and miR-802-5p are functional components of the GH regulatory network that shapes sex-differential gene expression in mouse liver. PMID- 29346557 TI - Peer supporters' experiences on an Australian perinatal mental health helpline. AB - Perinatal mental health is an important public health issue, and peer support is a potentially important strategy for emotional well-being in the perinatal period. PANDA Perinatal Anxiety & Depression Australia provides support to individuals impacted by perinatal mental health issues via the National Perinatal Anxiety & Depression Helpline. Callers receive peer support from volunteers and counselling from paid professional staff. The views and experiences of PANDA peer support volunteers have not previously been studied. We conducted two focus groups and an online survey to explore the experiences of women providing volunteer peer support on the Helpline. Data collection took place in October and November 2013. Two social theories were used in framing and addressing the study aims and in interpreting our findings: the Empathy-Altruism Hypothesis, and the Helper Therapy Principle. All PANDA volunteers were invited to participate (n = 40). Eight volunteers attended a focus group, and 11 survey responses were received. Descriptive statistics were used to analyse quantitative data. All survey respondents 'strongly agreed' that they felt positive about being part of PANDA. Thematic analysis of data from focus groups and open-ended survey responses identified the following themes: motivated to help others, supported to support callers, helping to make a difference and emotional impacts for volunteers. Respondents described a strong desire to support others experiencing emotional distress as a motivator to volunteer. Although perinatal peer support services are designed to benefit those who receive support, this study suggests volunteers may also experience personal benefits from the role. PMID- 29346556 TI - Cohort Profile: The Epidemiology of Chronic Diseases and Multimorbidity. The EpiChron Cohort Study. PMID- 29346555 TI - Data Resource Profile: Expansion of the Rochester Epidemiology Project medical records-linkage system (E-REP). PMID- 29346558 TI - Thoraco-abdominal aortic aneurysm rupture in a patient with Shprintzen-Goldberg syndrome. AB - Shprintzen-Goldberg syndrome is a rare systemic connective tissue disorder characterized by craniosynostosis, skeletal abnormalities, infantile hypotonia, mild-to-moderate intellectual disability and cardiovascular anomalies. To our knowledge, this is the first report of a Shprintzen-Goldberg syndrome patient who developed a thoraco-abdominal aortic aneurysm. The aneurysm grew rapidly necessitating emergent thoraco-abdominal aortic replacement. The postoperative course was uneventful, and a careful lifetime follow-up was planned. PMID- 29346560 TI - Aggregation and travelling wave dynamics in a two-population model of cancer cell growth and invasion. AB - Cells adhere to each other and to the extracellular matrix (ECM) through protein molecules on the surface of the cells. The breaking and forming of adhesive bonds, a process critical in cancer invasion and metastasis, can be influenced by the mutation of cancer cells. In this paper, we develop a nonlocal mathematical model describing cancer cell invasion and movement as a result of integrin controlled cell-cell adhesion and cell-matrix adhesion, for two cancer cell populations with different levels of mutation. The partial differential equations for cell dynamics are coupled with ordinary differential equations describing the ECM degradation and the production and decay of integrins. We use this model to investigate the role of cancer mutation on the possibility of cancer clonal competition with alternating dominance, or even competitive exclusion (phenomena observed experimentally). We discuss different possible cell aggregation patterns, as well as travelling wave patterns. In regard to the travelling waves, we investigate the effect of cancer mutation rate on the speed of cancer invasion. PMID- 29346561 TI - Floricolin C elicits intracellular reactive oxygen species accumulation and disrupts mitochondria to exert fungicidal action. AB - Candida albicans, one of the most prevalent fungal pathogens, causes severe mucosal and invasive infections in predisposed individuals. The rise of fungal infection and drug resistance demands the development of novel antifungal agents. In this study, we observed that floricolin C (FC), a p-terphenyl pigment from an endolichenic fungus, killed C. albicans cells in the planktonic state or within biofilms through reactive oxygen species (ROS) accumulation. Further tests revealed that FC could directly damage the mitochondria to cause ROS accumulation. In addition, FC can quench thiol-based agents through a Michael reaction involving the alpha,beta-unsaturated carbonyl group, whose effect may chelate intracellular thiol-based molecules or proteins in C. albicans, resulting in an imbalance in redox homeostasis. Increased ROS generation led to mitochondrial dysfunction, nuclear dispersion and consequently cell death. We further demonstrated that FC could prevent biofilm formation of other Candida species and eradicate their pre-formed biofilms. An in vivo study demonstrated that FC prolonged the survival of C. albicans-infected Caenorhabditis elegans. Taken together, our study provides the basis for the application of FC to combat Candida infections. PMID- 29346559 TI - Predicting plant biomass accumulation from image-derived parameters. AB - Background: Image-based high-throughput phenotyping technologies have been rapidly developed in plant science recently, and they provide a great potential to gain more valuable information than traditionally destructive methods. Predicting plant biomass is regarded as a key purpose for plant breeders and ecologists. However, it is a great challenge to find a predictive biomass model across experiments. Results: In the present study, we constructed 4 predictive models to examine the quantitative relationship between image-based features and plant biomass accumulation. Our methodology has been applied to 3 consecutive barley (Hordeum vulgare) experiments with control and stress treatments. The results proved that plant biomass can be accurately predicted from image-based parameters using a random forest model. The high prediction accuracy based on this model will contribute to relieving the phenotyping bottleneck in biomass measurement in breeding applications. The prediction performance is still relatively high across experiments under similar conditions. The relative contribution of individual features for predicting biomass was further quantified, revealing new insights into the phenotypic determinants of the plant biomass outcome. Furthermore, methods could also be used to determine the most important image-based features related to plant biomass accumulation, which would be promising for subsequent genetic mapping to uncover the genetic basis of biomass. Conclusions: We have developed quantitative models to accurately predict plant biomass accumulation from image data. We anticipate that the analysis results will be useful to advance our views of the phenotypic determinants of plant biomass outcome, and the statistical methods can be broadly used for other plant species. PMID- 29346562 TI - Scaffold-free trachea regeneration by tissue engineering with bio-3D printing. AB - OBJECTIVES: Currently, most of the artificial airway organs still require scaffolds; however, such scaffolds exhibit several limitations. Alternatively, the use of an autologous artificial trachea without foreign materials and immunosuppressants may solve these issues and constitute a preferred tool. The rationale of this study was to develop a new scaffold-free approach for an artificial trachea using bio-3D printing technology. Here, we assessed the circumferential tracheal replacement using scaffold-free trachea-like grafts generated from isolated cells in an inbred animal model. METHODS: Chondrocytes and mesenchymal stem cells were isolated from F344 rats. Rat lung microvessel endothelial cells were purchased. Our bio-3D printer generates spheroids consisting of several types of cells to create 3D structures. The bio-3D-printed artificial trachea from spheroids was matured in a bioreactor and transplanted into F344 rats as a tracheal graft under general anaesthesia. The mechanical strength of the artificial trachea was measured, and histological and immunohistochemical examinations were performed. RESULTS: Tracheal transplantation was performed in 9 rats, which were followed up postoperatively for 23 days. The average tensile strength of artificial tracheas before transplantation was 526.3 +/- 125.7 mN. The bio-3D-printed scaffold-free artificial trachea had sufficient strength to transplant into the trachea with silicone stents that were used to prevent collapse of the artificial trachea and to support the graft until sufficient blood supply was obtained. Chondrogenesis and vasculogenesis were observed histologically. CONCLUSIONS: The scaffold-free isogenic artificial tracheas produced by a bio-3D printer could be utilized as tracheal grafts in rats. PMID- 29346564 TI - Genome-wide comparison of allele-specific gene expression between African and European populations. AB - Transcriptomic diversity across human populations reflects differential regulatory mechanisms. Allelic-imbalanced gene expression is a genetic regulatory mechanism that contributes to human phenotypic variation. To systematically investigate genome-wide allele-specific expression (ASE), we analyzed RNA-Seq data from European and African populations provided by the Geuvadis project. We identified 11 sites in 8 genes showing ASE in both Europeans and Africans, and 9 sites in 9 genes showing population-specific ASE, including both novel and known ASE signals. Notably, the top signal of differentiated ASE between inter continental populations was observed in DNAJC15, of which the derived allele of rs12015, a single nucleotide polymorphism (SNP), showed significantly higher expression than did the ancestral allele specifically in European individuals. We identified a unique haplotype of DNAJC15, where a few SNPs highly differentiated between European and African populations were strongly linked to sites with high ASE. Among these, SNP rs17553284 affected the binding of several transcription factors as well as the genotype-dependent expression of DNAJC15. Therefore, we speculated that rs17553284 could be a regulatory causal variant that mediates the ASE of rs12015. We found several variations in ASE between intercontinental populations. The highly differentiated ASE genes identified here may implicate in the phenotypic variations among populations that are both evolutionarily and medically important. PMID- 29346563 TI - LC3 Immunostaining in the Inferior Olivary Nuclei of Cats With Niemann-Pick Disease Type C1 Is Associated With Patterned Purkinje Cell Loss. AB - The feline model of Niemann-Pick disease, type C1 (NPC1) recapitulates the clinical, neuropathological, and biochemical abnormalities present in children with NPC1. The hallmarks of disease are the lysosomal storage of unesterified cholesterol and multiple sphingolipids in neurons, and the spatial and temporal distribution of Purkinje cell death. In feline NPC1 brain, microtubule-associated protein 1 light chain 3 (LC3) accumulations, indicating autophagosomes, were found within axons and presynaptic terminals. High densities of accumulated LC3 were seen in subdivisions of the inferior olive, which project to cerebellar regions that show the most Purkinje cell loss, suggesting that autophagic abnormalities in specific climbing fibers may contribute to the spatial pattern of Purkinje cell loss seen. Biweekly intrathecal administration of 2 hydroxypropyl-beta cyclodextrin (HPbetaCD) ameliorated neurological dysfunction, reduced cholesterol and sphingolipid accumulation, and increased lifespan in NPC1 cats. LC3 pathology was reduced in treated animals suggesting that HPbetaCD administration also ameliorates autophagic abnormalities. This study is the first to (i) identify specific brain regions exhibiting autophagic abnormalities in any species with NPC1, (ii) provide evidence of differential vulnerability among discrete brain nuclei and pathways, and (iii) show the amelioration of these abnormalities in NPC1 cats treated with HPbetaCD. PMID- 29346565 TI - Apigenin induces cell shrinkage in Candida albicans by membrane perturbation. AB - Apigenin, a natural flavone, has been well characterized for its their anticarcinogenic property; however, its bioactivity against pathogenic fungi has not been investigated in detail. In this study, we examined the antifungal activity and mode of action of apigenin. Apigenin inhibited the growth of fungal pathogens, which induced superficial infection and reduced biofilm mass. Three dimensional flow cytometric analysis demonstrated that apigenin induced morphological changes, especially cell shrinkage, in Candida albicans. We investigated the cause of cell shrinkage using the cyanine dye 3,3? dipropylthiacarbocyanine iodide. Results revealed that apigenin altered the cell membrane potential. Apigenin also induced membrane dysfunction, and increased cell permeability to 1,6-diphenyl-1,3,5-hexatriene and propidium iodide. We observed the influx and efflux of fluorescent molecules of varying molecular weights and radii across large unilamellar vesicles and live cells that had been treated with apigenin. Membrane disruption facilitates the release of small intracellular constituents such as ions and sugars, but not proteins. These findings suggested that apigenin exerted an antifungal activity by inducing membrane disturbances, which led to cell shrinkage and leakage of intracellular components. PMID- 29346566 TI - A genome-wide association study identifies nucleotide variants at SIGLEC5 and DEFA1A3 as risk loci for periodontitis. PMID- 29346567 TI - Epithelial grafting of a decellularized whole-tracheal segment: an in vivo experimental model. AB - OBJECTIVES: Prerequisites for successful trachea transplantation include the use of a biocompatible construct, submucosal vascularization and an epithelial covering. Implantation of non-epithelialized tracheal scaffolds may lead to stenosis. However, epithelial grafting or seeding can only be attempted onto a well-vascularized submucosal bed. Our aim was to investigate a method to prevent stenosis during prelamination of non-epithelialized, gently decellularized rabbit tracheae and to evaluate whether grafting of revascularized constructs with buccal mucosa is feasible. METHODS: Allotracheae underwent two 48-h cycles of detergent-enzymatic decellularization using sodium deoxycholate and DNAse. In the first series, 12 circular scaffolds were implanted bilaterally in lateral thoracic artery flaps (n = 6 rabbits). Right-sided transplants were covered internally with IntegraTM. In the second series, 10 decellularized tracheae covered with Integra were prelaminated in flaps (n = 10 rabbits). Twenty-one days after implantation, revascularized tracheae were grafted with buccal mucosa. A macroscopic, histological analysis and immunohistochemistry were performed on explants. RESULTS: In the first series, tracheae without Integra covering developed significantly greater intraluminal (P = 0.032) and subepithelial narrowing (P = 0.0345) compared with tracheae with Integra covering. All tracheae exhibited insufficient submucosal revascularization. In the second series, submucosal revascularization was incomplete in the first 2 constructs, which were implanted circularly. These tracheae only showed marginal buccal graft ingrowth. To accelerate revascularization, the subsequent 8 transplants were opened longitudinally before implantation. Compared to circularly implanted tracheae, submucosal revascularization of these transplants was superior (P = 0.0008). Graft adherence was complete in 6 opened constructs. Mild lymphocytic infiltration within the buccal graft was detected in 5 specimens. CONCLUSIONS: We observed satisfactory host integration of opened tracheae that were temporarily covered with Integra during revascularization and subsequently grafted with buccal mucosa. Integra successfully prevented stenosis during revascularization. This model may provide an example of an immunosuppressive-free approach in the treatment of long-segment tracheal lesions. With the aid of further refinements such as a respiratory epithelial lining, an orthotopically transplantable construct could be created. PMID- 29346568 TI - Are infection specialists recommending short antibiotic treatment durations? An ESCMID international cross-sectional survey. AB - Objectives: To evaluate the current practice and the willingness to shorten the duration of antibiotic therapy among infection specialists. Methods: Infection specialists giving at least weekly advice on antibiotic prescriptions were invited to participate in an online cross-sectional survey between September and December 2016. The questionnaire included 15 clinical vignettes corresponding to common clinical cases with favourable outcomes; part A asked about the antibiotic treatment duration they would usually advise to prescribers and part B asked about the shortest duration they were willing to recommend. Results: We included 866 participants, mostly clinical microbiologists (22.8%, 197/863) or infectious diseases specialists (58.7%, 507/863), members of an antibiotic stewardship team in 73% (624/854) of the cases, coming from 58 countries on all continents. Thirty six percent of participants (271/749) already advised short durations of antibiotic therapy (compared with the literature) to prescribers for more than half of the vignettes and 47% (312/662) chose shorter durations in part B compared with part A for more than half of the vignettes. Twenty-two percent (192/861) of the participants declared that their regional/national guidelines expressed durations of antibiotic therapy for a specific clinical situation as a fixed duration as opposed to a range and in the multivariable analysis this was associated with respondents advising short durations for more than half of the vignettes (adjusted OR 1.5, P = 0.02). Conclusions: The majority of infection specialists currently do not advise the shortest possible duration of antibiotic therapy to prescribers. Promoting short durations among these experts is urgently needed. PMID- 29346570 TI - Implementation status of morbidity and mortality conferences in Swiss hospitals: a national cross-sectional survey study. AB - Objective: To determine the implementation status and current practice of morbidity and mortality conferences (M&MCs) in Switzerland. Design: A national cross-sectional online survey was conducted in spring 2017. The questionnaire focused on overall goals, structure and procedures of hospital M&MCs. Further topics included satisfaction, perceived effectiveness and support requirements. Setting: A total of 913 chief physicians of surgery and internal medicine, and specialist fields of obstetrics and gynaecology, anaesthesiology and intensive care from Swiss acute care hospitals were invited to the survey. 321 completed the questionnaire, resulting in a 35.2% response rate. Participants: Chief or senior physicians in charge of the M&MCs in their department. Intervention: No intervention. Main Outcome Measures: Numbers and percentages of M&MCs within the surveyed disciplines fulfilling certain characteristics and procedural features. Results: Among 321 respondents, the majority are conducting M&MCs in their departments. Within and between the medical disciplines considerable heterogeneity was found in structural and procedural features of M&MCs. Only a small part of the reported M&MCs is following a systematic approach and meeting recommended procedural features. Although the respondents are satisfied and perceive the M&MCs as an efficient tool, they agree that there is a need for professionalization and standardization. Conclusion: M&MCs are widely used to promote medical education, patient safety and quality improvements. However, the term M&MC seems to cover different types of meetings. Although the overall goals are similar, various types of M&MCs are used in practice and different objectives are pursued. Tools such as checklists, guidelines and templates are considered helpful. PMID- 29346569 TI - Controlled Antenatal Thyroid Screening II: Effect of Treating Maternal Suboptimal Thyroid Function on Child Cognition. AB - Context and Objective: The Controlled Antenatal Thyroid Screening (CATS) study investigated treatment of suboptimal gestational thyroid function (SGTF) on childhood cognition and found no difference in intelligence quotient (IQ) at 3 years between children of treated and untreated SGTF mothers. We have measured IQ in the same children at age 9.5 years and included children from normal gestational thyroid function (normal-GTF) mothers. Design, Setting, and Participants: One examiner, blinded to participant group, assessed children's IQ (Wechsler Intelligence Scale for Children, Fourth Edition UK), long-term memory, and motor function (Developmental Neuropsychological Assessment II) from children of 119 treated and 98 untreated SGTF mothers plus children of 232 mothers with normal-GTF. Logistic regression explored the odds and percentages of an IQ < 85 in the groups. Results: There was no difference in IQ < 85 between children of mothers with normal-GTF and combined SGTF, i.e., treated and untreated (fully adjusted odds ratio [OR] = 1.15 [95% confidence interval (CI) 0.52, 2.51]; P = 0.731). Furthermore, there was no significant effect of treatment [untreated OR = 1.33 (95% CI 0.53, 3.34); treated OR = 0.75 (95% CI 0.27, 2.06) P = 0.576]. IQ < 85 was 6.03% in normal-GTF, 7.56% in treated, and 11.22% in untreated groups. Analyses accounting for treated-SGTF women with free thyroxine > 97.5th percentile of the entire CATS-I cohort revealed no significant effect on a child's IQ < 85 in CATS-II. IQ at age 3 predicted IQ at age 9.5 (P < 0.0001) and accounted for 45% of the variation. Conclusions: Maternal thyroxine during pregnancy did not improve child cognition at age 9.5 years. Our findings confirmed CATS-I and suggest that the lack of treatment effect may be a result of the similar proportion of IQ < 85 in children of women with normal-GTF and SGTF. PMID- 29346571 TI - Natural Course of Human T-Cell Leukemia Virus Type 1 Proviral DNA Levels in Carriers During Pregnancy. AB - The measurement of human T-cell leukemia virus type 1 (HTLV-1) proviral DNA levels by using polymerase chain reaction has been beneficial for confirming HTLV 1 infection during pregnancy. However, the influence of pregnancy on HTLV-1 infection and proviral DNA levels among pregnant women with HTLV-1 has not been clarified. We prospectively gathered blood samples from 36 pregnant women in whom HTLV-1 carriage was previously diagnosed and sequentially measured their proviral DNA levels. The HTLV-1 proviral DNA levels remained at a plateau during pregnancy but were elevated after delivery. Moreover, flow cytometry and serological analyses revealed that the regulatory T-cell population and soluble interleukin 2 receptor levels were similarly elevated after birth in comparison with those in control pregnant women. This study is the first to provide data on sequential changes in HTLV-1 proviral DNA levels during and after pregnancy. These findings will guide the establishment of a better program to prevent mother-to-child transmission of HTLV-1. PMID- 29346572 TI - Analysis of experience-regulated transcriptome and imprintome during critical periods of mouse visual system development reveals spatiotemporal dynamics. AB - Visual system development is light-experience dependent, which strongly implicates epigenetic mechanisms in light-regulated maturation. Among many epigenetic processes, genomic imprinting is an epigenetic mechanism through which monoallelic gene expression occurs in a parent-of-origin-specific manner. It is unknown if genomic imprinting contributes to visual system development. We profiled the transcriptome and imprintome during critical periods of mouse visual system development under normal- and dark-rearing conditions using B6/CAST F1 hybrid mice. We identified experience-regulated, isoform-specific and brain region-specific imprinted genes. We also found imprinted microRNAs were predominantly clustered into the Dlk1-Dio3 imprinted locus with light experience affecting some imprinted miRNA expression. Our findings provide the first comprehensive analysis of light-experience regulation of the transcriptome and imprintome during critical periods of visual system development. Our results may contribute to therapeutic strategies for visual impairments and circadian rhythm disorders resulting from a dysfunctional imprintome. PMID- 29346573 TI - The Addition of Bevacizumab to Oxaliplatin-Based Chemotherapy: Impact Upon Hepatic Sinusoidal Injury and Thrombocytopenia. AB - Background: Oxaliplatin-based chemotherapy can cause hepatic sinusoidal injury (HSI), portal hypertension, and splenic sequestration of platelets. Evidence suggests that bevacizumab may protect against HSI. Methods: Two cohorts of metastatic colorectal cancer (CRC) were analyzed: a nonrandomized exploratory cohort of 184 patients treated at a single institution from 2003 to 2010 and a confirmatory cohort of 200 patients from a multi-institutional randomized trial (NO16966). All patients were treated with frontline fluoropyrimidine and oxaliplatin with or without bevacizumab. Changes in splenic volumes and platelet counts were compared by treatment, two-sided log-rank test. Results: In the exploratory cohort, the bevacizumab-treated patients (n = 138) compared with the nonbevacizumab-treated patients (n = 46) demonstrated a longer median time to splenic enlargement (>=30%, P = .02) and reduced rate of thrombocytopenia (<150 000/mm3, P = .04). In the confirmatory cohort (106 bevacizumab arm and 94 placebo arm), the median time to a spleen enlargement of 30% or more was 7.6 vs 5.4 (P = .01), and six-month cumulative incidence of thrombocytopenia (platelets < 100 000/mm3) was 19% vs 51% (P < .001) for bevacizumab compared with placebo. The development of an increasing spleen size was associated with the risk of either grade 1 or grade 2 thrombocytopenia (P < .001). The cumulative rate of grade 1 or grade 2 thrombocytopenia was statistically less in the bevacizumab arm, with six month grade 2 thrombocytopenia rates of 4% vs 23% (P < .001). Patients with a large spleen prior to chemotherapy initiation appeared to be at highest risk of this toxicity. Conclusion: In metastatic CRC, the addition of bevacizumab to oxaliplatin-based chemotherapy reduces the frequency of splenic enlargement and the rate of thrombocytopenia. PMID- 29346574 TI - Systematic genetic interaction studies identify histone demethylase Utx as potential target for ameliorating Huntington's disease. PMID- 29346575 TI - Abacavir Induces Arterial Thrombosis in a Murine Model. AB - Background: The purinergic system is known to underlie prothrombotic and proinflammatory vascular programs, making the profile of experimental actions demonstrated by abacavir compatible with thrombogenesis. However, direct evidence of a prothrombotic effect by the drug has been lacking. Methods: The present study appraised the effects of abacavir in a well-validated animal model of arterial thrombosis. The role of ATP-P2X7 receptors in the actions of the drug was also assessed, and the actions of recognized vascular-damaging agents and other nucleoside reverse-transcriptase inhibitors (NRTIs) were evaluated and compared to those of abacavir. Results: Abacavir dose-dependently promoted thrombus formation. This effect was reversed by a P2X7-receptor antagonist and was nonexistent in P2X7 knockout mice. The effects of abacavir were similar to those of diclofenac and rofecoxib. Other NRTIs had no thrombosis-related effects. Conclusion: Abacavir promotes arterial thrombosis through interference with purinergic signaling, suggesting a possible biological mechanism for the clinical association of abacavir with cardiovascular diseases. PMID- 29346576 TI - Commentary on 'Communicating Messages About Drinking': Using the 'Big Legal Guns' to Block Alcohol Health Warning Labels. AB - Like the tobacco industry, the alcohol industry, with the support of governments in alcohol exporting nations, is looking to international trade and investment law as a means to oppose health warning labels on alcohol. The threat of such litigation, let alone its commencement, has the potential to deter all but the most resolute governments from implementing health warning labeling. PMID- 29346577 TI - Improved Success Rate of Arterial Puncture for Blood Gas Analysis Through Standardization. AB - Background: Arterial puncture for blood gas analysis is a common procedure in hospitals. The aim of the study is to determine if standardizing technique elements of the arterial puncture process could improve the success rate of technicians through the full scope of an academic medical center. Methods: The study is conducted by the Blood Gas Laboratory at University of Utah Health's main campus. During the baseline period, technicians tallied whether arterial puncture attempts were successful or unsuccessful from December 2014 through February 2015. A small team reviewed the steps of performing arterial puncture and selected segments of the process for standardization. Starting in March 2015, staff were trained individually in the standard processes. All staff continued to tally outcomes of puncture attempts through March 2017. Results: During the baseline period, the puncture success rate was 83.6%. From April 2015 through March 2017 the success rate was 89.2%. Conclusion: Standardizing arterial puncture technique for blood gas analysis leads to fewer punctures. PMID- 29346578 TI - Effect of daidzein and equol on DNA replication in MCF-7 cells. AB - It has been reported that daidzein and equol stimulate DNA replication and proliferation of MCF-7 cells. However, their molecular mechanisms of action are still unclear. We examined the effects of daidzein and equol on DNA replication of MCF-7 cells, focusing on MCM2-7 proteins, which function as the replicative helicase. In the presence of either 1 MUM of daidzein or equol, the number of cells in S-phase, which was determined by detecting bromodeoxyuridine incorporated into replicated DNA, almost doubled. The total amounts of MCM7 protein and chromatin-bound MCM7 protein increased in the presence of daidzein. The data suggest that phytoestrogens facilitate cell cycle progression in G1 phase by increasing the level of MCM proteins. In the presence of phytoestrogens, phosphorylation of Rb and levels of MCM2, 3 and 7 mRNA increased, suggesting that stimulation of MCM2-7 transcription is involved in the cell cycle progression. Under the same conditions, double-stranded DNA breakage in logarithmically growing MCF-7 cells, which was detected using anti-gamma-H2AX antibodies, did not increase in the presence of equol. PMID- 29346579 TI - Web-Based Cognitive Behavior Therapy for Chronic Pain Patients with Aberrant Drug Related Behavior: Outcomes from a Randomized Controlled Trial. AB - Objective: There is high unmet need for effective behavioral treatments for chronic pain patients at risk for or with demonstrated histories of opioid misuse. Despite growing evidence supporting technology-based delivery of self management interventions for chronic pain, very few such programs target co occurring chronic pain and aberrant drug-related behavior. This randomized controlled trial evaluated the effectiveness of a novel, web-based self management intervention, grounded in cognitive behavior therapy, for chronic pain patients with aberrant drug-related behavior. Methods: Opioid-treated chronic pain patients at a specialty pain practice who screened positive for aberrant drug-related behavior (N = 110) were randomized to receive treatment as usual plus the web-based program or treatment as usual alone. The primary outcomes of pain severity, pain interference, and aberrant drug-related behavior, and the secondary outcomes of pain catastrophizing and pain-related emergency department visits, were assessed during the 12-week intervention and at one and three months postintervention. Results: Patients assigned to use the web-based program reported significantly greater reductions in aberrant drug-related behavior, pain catastrophizing, and pain-related emergency department visits-but not pain severity or pain interference-relative to those assigned to treatment as usual. The positive outcomes were observed during the 12-week intervention and for three months postintervention. Conclusions: A web-based self-management program, when delivered in conjunction with standard specialty pain treatment, was effective in reducing chronic pain patients' aberrant drug-related behavior, pain catastrophizing, and emergency department visits for pain. Technology-based self management tools may be a promising therapeutic approach for the vulnerable group of chronic pain patients who have problems managing their opioid medication. PMID- 29346581 TI - Melatonin attenuates lung ischaemia-reperfusion injury via inhibition of oxidative stress and inflammation. AB - OBJECTIVES: Lung ischaemia-reperfusion injury is a complex pathophysiological process due to the production of reactive oxygen species and the generation of inflammatory reaction. We investigated the protective effects and the corresponding mechanism of melatonin (MT), a potent free-radical scavenger, on lung injury induced by ischaemia-reperfusion in a mouse model. METHODS: Adult male C57BL/6J mice (n = 30) were randomly and equally allocated into 5 groups: sham controls, IR, IR + 10 mg/kg MT, IR + 20 mg/kg MT and IR + 30 mg/kg MT. Lung ischaemia-reperfusion injury was induced by thoracotomy followed by clamping of the left hilum for 1 h and subsequent reperfusion for 2 h. RESULTS: Histological scoring analysis showed that lung parenchymal damage was ameliorated in the melatonin pretreatment groups when compared with the IR group, with the IR + 20 mg/kg MT group showing the strongest effect among the melatonin pretreatment groups. Wet-to-dry weight ratio, detection of malondialdehyde, protein expressions of inflammatory factors (tumour necrosis factor-alpha, interleukin 1beta, NF-kappaB and IKK-gamma) and apoptotic factors (cleaved caspase-3 and Bax/Bcl-2), as well as TUNEL assay showed changes similar to those of the lung injury scores in all groups. In contrast, the examination of superoxide dismutase showed a pattern contrary to that of the lung injury score in all groups. In addition, immunohistochemistry staining showed that the expressions of the antioxidants glutathione peroxidase and glutathione reductase were increased in the melatonin pretreatment groups. CONCLUSIONS: This study demonstrated that melatonin pretreatment attenuated lung ischaemia-reperfusion injury via inhibition of oxidative stress, inflammation and apoptosis. PMID- 29346582 TI - It's not just 'What' you do, it's also the 'Way' that you do it: Patient and Public Involvement in the Development of Health Research. AB - Purpose: This article presents a reflective account of Patient and Public Involvement (PPI) in the development of obesity and binge eating research. Method: We established Patient Advisory Groups (PAGs) at two English regional National Health Service (NHS) weight management services. PPI was evaluated as follows: (i) PAG members completed a Post Participation Evaluation Questionnaire, (ii) PAG meetings captured group discussion on PPI involvement, (iii) practitioner and researchers produced written reflections on PPI and (iv) sources one to three were consolidated during reflections that took place via e-mail and telephone correspondence between researchers and practitioners, culminating in a summary SKYPE meeting between one practitioner and one researcher involved in the PAGs. Results: Results in the form of reflections suggest guidelines on undertaking PPI were helpful with regard 'what to do', but less helpful on 'how'. For example, suggestions for the management of interpersonal factors such as eliciting self-disclosure and managing power differentials are insufficiently addressed in existing guidelines. Conclusions: The present case study illustrated how interpersonal considerations can help or hinder the optimal use of PPI. Recommendations for practitioners and researchers planning PPI are offered. PMID- 29346580 TI - Smoking, Sex, and Non-Small Cell Lung Cancer: Steroid Hormone Receptors in Tumor Tissue (S0424). AB - Background: To what extent steroid hormones contribute to lung cancer in male and female never smokers and smokers is unclear. We examined expression of hormone receptors in lung tumors by sex and smoking. Methods: Patients with primary non small cell lung cancer were recruited into an Intergroup study in the United States and Canada, led by SWOG (S0424). Tumors from 813 cases (450 women and 363 men) were assayed using immunohistochemistry for estrogen receptor (ER)-alpha, ER beta, progesterone receptor (PR), and human epidermal growth factor receptor 2 (HER2). Linear regression was used to examine differences in expression by sex and smoking status. Cox proportional hazard models were used to estimate survival associated with the receptors. All statistical tests were two-sided. Results: In ever smokers, postmenopause and oral contraceptive use were associated with lower nuclear ER-beta (P = .02) and total (nuclear + cytoplasmic) PR expression (P = .02), respectively. Women had lower cytoplasmic ER-alpha (regression coefficient [beta], or differences in H-scores = -15.8, P = .003) and nuclear ER-beta (beta = -12.8, P = .04) expression than men, adjusting for age, race, and smoking. Ever smokers had both higher cytoplasmic ER-alpha (beta = 45.0, P < .001) and ER-beta (beta = 25.9, P < .001) but lower total PR (beta = -42.1, P < .001) than never smokers. Higher cytoplasmic ER-alpha and ER-beta were associated with worse survival (hazard ratio = 1.73, 95% confidence interval [CI] = 1.15 to 2.58, and HR = 1.59, 95% CI = 1.08 to 2.33, respectively; quartiles 4 vs 1). Conclusions: Lower expression of nuclear ER-beta in women supports the estrogen hypothesis in lung cancer etiology. Increasing cytoplasmic ER-alpha and ER-beta and decreasing PR protein expression may be mechanisms whereby smoking disrupts hormone pathways. PMID- 29346583 TI - DataMed - an open source discovery index for finding biomedical datasets. AB - Objective: Finding relevant datasets is important for promoting data reuse in the biomedical domain, but it is challenging given the volume and complexity of biomedical data. Here we describe the development of an open source biomedical data discovery system called DataMed, with the goal of promoting the building of additional data indexes in the biomedical domain. Materials and Methods: DataMed, which can efficiently index and search diverse types of biomedical datasets across repositories, is developed through the National Institutes of Health funded biomedical and healthCAre Data Discovery Index Ecosystem (bioCADDIE) consortium. It consists of 2 main components: (1) a data ingestion pipeline that collects and transforms original metadata information to a unified metadata model, called DatA Tag Suite (DATS), and (2) a search engine that finds relevant datasets based on user-entered queries. In addition to describing its architecture and techniques, we evaluated individual components within DataMed, including the accuracy of the ingestion pipeline, the prevalence of the DATS model across repositories, and the overall performance of the dataset retrieval engine. Results and Conclusion: Our manual review shows that the ingestion pipeline could achieve an accuracy of 90% and core elements of DATS had varied frequency across repositories. On a manually curated benchmark dataset, the DataMed search engine achieved an inferred average precision of 0.2033 and a precision at 10 (P@10, the number of relevant results in the top 10 search results) of 0.6022, by implementing advanced natural language processing and terminology services. Currently, we have made the DataMed system publically available as an open source package for the biomedical community. PMID- 29346584 TI - In vitro interactions between IAP antagonist AT406 and azoles against planktonic cells and biofilms of pathogenic fungi Candida albicans and Exophiala dermatitidis. AB - In vitro interactions of AT406, a novel IAP antagonist, and azoles including itraconazole, voriconazole, and fluconazole against planktonic cells and biofilms of Candida albicans and Exophiala dermatitidis were assessed via broth microdilution checkerboard technique. AT406 alone exhibited limited antifungal activity. However, synergistic effect between AT406 and fluconazole was observed against both planktonic cells and biofilms of C. albicans, including one fluconazole-resistant strain. Moreover, synergism was also demonstrated between AT406 and itraconazole against both planktonic cells and biofilms of E. dermatitidis. No interaction was observed between AT406 and voriconazole. No antagonism was observed in all combinations. PMID- 29346585 TI - Maternal Vaccination With a Monocomponent Pertussis Toxoid Vaccine Is Sufficient to Protect Infants in a Baboon Model of Whooping Cough. AB - Background: Bordetella pertussis is a human pathogen responsible for serious respiratory illness. The disease is most severe in infants too young to be vaccinated with most hospitalizations and deaths occurring within this age group. The Advisory Committee on Immunization Practices recommended immunization of pregnant women to protect infants from birth until their first vaccination at 6-8 weeks of age. We previously demonstrated that maternal vaccination with licensed acellular pertussis vaccines protected newborn baboons from disease. We hypothesized that protection was due to toxin-neutralizing, maternal anti pertussis toxin antibodies and predicted that maternal vaccination with a pertussis toxoid (PTx)-only vaccine would protect newborns from disease. Methods: Infant baboons born to unvaccinated mothers or mothers vaccinated with a PTx-only vaccine were challenged with B. pertussis at 5 weeks of age and followed for infection and signs of disease. Results: Although all challenged infants were heavily colonized, the infant baboons born to mothers vaccinated with PTx-only vaccine were free from clinical disease following exposure to B. pertussis. In contrast, disease was observed in infants born to unvaccinated mothers. Conclusions: Our results demonstrated that maternal vaccination with a PTx-only vaccine is sufficient to protect newborn baboons from disease following exposure to pertussis. PMID- 29346586 TI - PlasFlow: predicting plasmid sequences in metagenomic data using genome signatures. AB - Plasmids are mobile genetics elements that play an important role in the environmental adaptation of microorganisms. Although plasmids are usually analyzed in cultured microorganisms, there is a need for methods that allow for the analysis of pools of plasmids (plasmidomes) in environmental samples. To that end, several molecular biology and bioinformatics methods have been developed; however, they are limited to environments with low diversity and cannot recover large plasmids. Here, we present PlasFlow, a novel tool based on genomic signatures that employs a neural network approach for identification of bacterial plasmid sequences in environmental samples. PlasFlow can recover plasmid sequences from assembled metagenomes without any prior knowledge of the taxonomical or functional composition of samples with an accuracy up to 96%. It can also recover sequences of both circular and linear plasmids and can perform initial taxonomical classification of sequences. Compared to other currently available tools, PlasFlow demonstrated significantly better performance on test datasets. Analysis of two samples from heavy metal-contaminated microbial mats revealed that plasmids may constitute an important fraction of their metagenomes and carry genes involved in heavy-metal homeostasis, proving the pivotal role of plasmids in microorganism adaptation to environmental conditions. PMID- 29346587 TI - Are root cause analyses recommendations effective and sustainable? An observational study. AB - Objective: To assess the strength of root cause analysis (RCA) recommendations and their perceived levels of effectiveness and sustainability. Design: All RCAs related to sentinel events (SEs) undertaken between the years 2010 and 2015 in the public health system in Victoria, Australia were analysed. The type and strength of each recommendation in the RCA reports were coded by an expert patient safety classifier using the US Department of Veteran Affairs type and strength criteria. Participants and setting: Thirty-six public health services. Main outcome measure(s): The proportion of RCA recommendations which were classified as 'strong' (more likely to be effective and sustainable), 'medium' (possibly effective and sustainable) or 'weak' (less likely to be effective and sustainable). Results: There were 227 RCAs in the period of study. In these RCAs, 1137 recommendations were made. Of these 8% were 'strong', 44% 'medium' and 48% were 'weak'. In 31 RCAs, or nearly 15%, only weak recommendations were made. In 24 (11%) RCAs five or more weak recommendations were made. In 165 (72%) RCAs no strong recommendations were made. The most frequent recommendation types were reviewing or enhancing a policy/guideline/documentation, and training and education. Conclusions: Only a small proportion of recommendations arising from RCAs in Victoria are 'strong'. This suggests that insights from the majority of RCAs are not likely to inform practice or process improvements. Suggested improvements include more human factors expertise and independence in investigations, more extensive application of existing tools that assist teams to prioritize recommendations that are likely to be effective, and greater use of observational and simulation techniques to understand the underlying systems factors. Time spent in repeatedly investigating similar incidents may be better spent aggregating and thematically analysing existing sources of information about patient safety. PMID- 29346589 TI - Urban Evolutionary Ecology and the Potential Benefits of Implementing Genomics. AB - Urban habitats are quickly becoming exceptional models to address adaptation under rapid environmental change, given the expansive temporal and spatial scales with which anthropogenic landscape conversion occurs. Urban ecologists in the last 10-15 years have done an extraordinary job of highlighting phenotypic patterns that correspond with urban living, as well as delineating urban population structure using traditional genetic markers. The underpinning genetic mechanisms that govern those phenotypic patterns, however, are less well established. Moreover, the power of traditional molecular studies is constrained by the number of markers being evaluated, which limits the potential to assess fine-scale population structure potentially common in urban areas. With the recent proliferation of low-cost, high-throughput sequencing methods, we can begin to address an emerging question in urban ecology: are species adapted to local optima within cities or are they expressing latent phenotypic plasticity? Here, I provide a comprehensive review of previous urban ecological studies, with special focus on the molecular ecology and phenotypic adjustments documented in urban terrestrial and amphibious fauna. I subsequently pinpoint areas in the literature that could benefit from a genomic investigation and briefly discuss the suitability of specific techniques in addressing eco-evolutionary questions within urban ecology. Though many challenges exist with implementing genomics into urban ecology, such studies provide an exceptional opportunity to advance our understanding of eco-evolutionary processes in metropolitan areas. PMID- 29346590 TI - Hellenic Society of Cardiology International Congress 2017. PMID- 29346588 TI - Genome Sequencing of Museum Specimens Reveals Rapid Changes in the Genetic Composition of Honey Bees in California. AB - The western honey bee, Apis mellifera, is an enormously influential pollinator in both natural and managed ecosystems. In North America, this species has been introduced numerous times from a variety of different source populations in Europe and Africa. Since then, feral populations have expanded into many different environments across their broad introduced range. Here, we used whole genome sequencing of historical museum specimens and newly collected modern populations from California (USA) to analyze the impact of demography and selection on introduced populations during the past 105 years. We find that populations from both northern and southern California exhibit pronounced genetic changes, but have changed in different ways. In northern populations, honey bees underwent a substantial shift from western European to eastern European ancestry since the 1960s, whereas southern populations are dominated by the introgression of Africanized genomes during the past two decades. Additionally, we identify an isolated island population that has experienced comparatively little change over a large time span. Fine-scale comparison of different populations and time points also revealed SNPs that differ in frequency, highlighting a number of genes that may be important for recent adaptations in these introduced populations. PMID- 29346591 TI - Eduardo Marban MD PhD. PMID- 29346593 TI - HEART Group meeting. PMID- 29346592 TI - The ESC DAPT Guidelines 2017. PMID- 29346594 TI - The heart in embryology. PMID- 29346595 TI - 'Ten Commandments' of the 2017 ESC DAPT focused update Guidelines. PMID- 29346596 TI - Dual antiplatelet therapy: how, how long, and in which patients? PMID- 29346597 TI - Exenatide Increases IL-1RA Concentration and Induces Nrf-2-Keap-1-Regulated Antioxidant Enzymes: Relevance to beta-Cell Function. AB - Purpose: We previously demonstrated the anti-inflammatory and antioxidant effects of exenatide. We now hypothesized that exenatide also increases the plasma concentration of interleukin-1 receptor antagonist (IL-1RA), an endogenous anti inflammatory protein, and modulates the nuclear factor erythroid 2-related factor Kelchlike ECH-associated protein 1-antioxidant response element (Nrf-2-Keap-1 ARE) system to induce key antioxidant enzymes to suppress inflammatory and oxidative stress. Methods: Twenty-four patients with obesity and type 2 diabetes receiving combined oral and insulin therapy were randomly assigned to receive either exenatide 10 MUg or placebo twice a day for 12 weeks. Results: Exenatide increased IL-1RA concentration by 61% (from 318 +/- 53 to 456 +/- 88 pg/mL; P < 0.05). Exenatide treatment also suppressed Keap-1 protein (P < 0.05) and increased messenger RNA expression of NQO-1, glutathione S-transferase PI, heme oxygenase-1, and p21 and increased NAD(P)H dehydrogenase [quinone] 1 protein (P < 0.05) in mononuclear cells. Conclusions: Because IL-1RA protects, maintains, and stimulates beta-cell function in humans and Nrf-2-Keap-1-ARE protects beta cells in animals with experimental diabetes, these actions of exenatide may contribute to a potential protective effect on beta cells in diabetes. PMID- 29346598 TI - Accuracy of preoperative staging for a priori resectable esophageal cancer. AB - This study assessed the accuracy of preoperative staging in patients undergoing oncological esophagectomy for adenocarcinoma and squamous cell carcinoma. All patients undergoing surgery for resectable esophageal cancer in a university hospital from 2005 to 2016 were identified from our institutional database. Patients with neoadjuvant treatment were excluded to avoid bias from down-staging effects. Routinely, all patients had an upper endoscopy with biopsy, a thoracoabdominal CT scan, an 18-FEG PET-CT, and endoscopic ultrasound. Preoperative staging was compared to histopathological staging of surgical specimen that was considered as gold standard. There were 51 patients with a median age of 65 years (IQR: 59.3-73 years) having 21 squamous cell carcinoma and 30 adenocarcinoma, respectively. T- and N-stages were correctly predicted in 26 (51%) and 37 patients (72%), respectively. Overall, 18 patients (35%) were preoperatively diagnosed with a correct T- and N-stage. There was no difference between adenocarcinoma and squamous cell carcinoma. Accuracy of the T-stage was not influenced by the smoking status. The N-stage was not correct in 7/22 smoking patients (32%) and 6/29 nonsmoking patients (21%).The N-stage was underestimated in smoking patients as 6/22 patients (27%) had a histologically confirmed N+ who were preoperatively classified as N0. In conclusion, only 35% of patients had a correct assessment. Separate T- and N-stage prediction was improved with 51% and 72%, respectively. Major efforts are needed for improvement. PMID- 29346599 TI - Magnetic Resonance Imaging-Guided Laser Interstitial Thermal Therapy for the Treatment of Hypothalamic Hamartomas: A Retrospective Review. AB - BACKGROUND: Hypothalamic hamartomas (HH) are rare lesions associated with treatment-resistant epilepsy. Open surgery results in modest seizure control (about 50%) but has a significant associated morbidity. Radiosurgery is limited to a subset of patients due to latent therapeutic effects. Magnetic resonance imaging-guided laser interstitial thermal therapy (LITT) offers a novel minimally invasive option. OBJECTIVE: To evaluate a single center's outcomes for the LITT treatment of HH. METHODS: We retrospectively reviewed our experience with LITT for the treatment of HH using our institution's prospectively maintained patient database. RESULTS: Eighteen patients (mean age, 21.1 yr; median age, 11 yr) underwent 21 total LITT treatments for HH. Mean follow-up was 17.4 mo. The length of stay was 1 night for 16 (89%) patients. At the end of follow-up, 11 of 18 patients (61%) had full disconnection of the HH, and 12 of 15 (80%) patients with gelastic seizures and 5 (56%) of 9 patients with nongelastic seizures were seizure free (International League Against Epilepsy Class 1). Immediate complications included a 39% (7/18) incidence of neurological deficits, including 1 case of hemiparesis. At the end of follow-up, 22% of patients (4/18) had persistent deficits. The hypothyroidism that occurred was delayed in 11% of patients (2/18), as was short-term memory loss (22%, 4/18) and weight gain (22%, 4/18). CONCLUSION: LITT therapy for HH can achieve excellent rates of seizure control with low morbidity and a short postoperative stay in a majority of patients. Additional research is needed to assess the durability of results and the full spectrum of cognitive outcomes. PMID- 29346600 TI - PD-1 blockade in HIV-infected patients with lung cancer: a new challenge or already a strategy? PMID- 29346601 TI - Accumulation of Mutational Load at the Edges of a Species Range. AB - Why species have geographically restricted distributions is an unresolved question in ecology and evolutionary biology. Here, we test a new explanation that mutation accumulation due to small population size or a history of range expansion can contribute to restricting distributions by reducing population growth rate at the edge. We examined genomic diversity and mutational load across the entire geographic range of the North American plant Arabidopsis lyrata, including old, isolated populations predominantly at the southern edge and regions of postglacial range expansion at the northern and southern edges. Genomic diversity in intergenic regions declined toward distribution edges and signatures of mutational load in exon regions increased. Genomic signatures of mutational load were highly linked to phenotypically expressed load, measured as reduced performance of individual plants and lower estimated rate of population growth. The geographic pattern of load and the connection between load and population growth demonstrate that mutation accumulation reduces fitness at the edge and helps restrict species' distributions. PMID- 29346602 TI - How Can We Best Protect Infants from Pertussis? PMID- 29346603 TI - Homologous stress adaptation, antibiotic resistance, and biofilm forming ability of Salmonella enterica serovar Heidelberg ATCC8326 on different food-contact surfaces following exposure to sublethal chlorine concentrations1. AB - Salmonella enterica serovar Heidelberg (American Type Culture Collection; ATCC 8326) was examined for the ability to adapt to the homologous stress of chlorine through exposure to increasing chlorine concentrations (25 ppm daily increments) in tryptic soy broth (TSB). The tested strain exhibited an acquired tolerance to chlorine in TSB with the tolerant cells growing in concentrations up to 400 ppm. In addition, the chlorine stressed cells displayed rugose morphology on tryptic soy agar (TSA) plates at 37 degrees C. The minimum inhibitory concentration (MIC) of chlorine for adapted (rugose and smooth) cells was determined to be 550 ppm and 500 ppm, respectively whereas the MIC for the control was 450 ppm. The biofilm forming ability of the adapted and control cells were examined on both plastic and stainless steel surface at room temperature and 37 degrees C. The rugose variant, in contrast to the smooth (adapted and control) showed the ability to form strong biofilms (P <= 0.05) on a plastic surface at room temperature and 37 degrees C. Rugose cells compared to smooth and control attached more (P <= 0.05) to steel surfaces as well. The possibility of cross adaptation was examined by exposing the adapted and control cells to different antibiotics according to the Clinical & Laboratory Standards Institute guidelines. Adapted cells exhibited reduced susceptibility to some of the antibiotics tested as compared to control. The findings of this study suggest that exposure to sublethal chlorine concentration during the sanitization procedure can result in tolerant Salmonella cells. Chlorine may confer cross protection that aids in the survival of the tolerant population to other environmental stresses. PMID- 29346604 TI - Unique genetic profiles from cerebrospinal fluid cell-free DNA in leptomeningeal metastases of EGFR-mutant non-small-cell lung cancer: a new medium of liquid biopsy. AB - Background: Leptomeningeal metastases (LM) are more frequent in non-small-cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations. Due to limited access to leptomeningeal lesions, the purpose of this study was to explore the potential role of cerebrospinal fluid (CSF) as a source of liquid biopsy in patients with LM. Patients and methods: Primary tumor, CSF, and plasma in NSCLC with LM were tested by next-generation sequencing. In total, 45 patients with suspected LM underwent lumbar puncture, and those with EGFR mutations diagnosed with LM were enrolled. Results: A total of 28 patients were enrolled in this cohort; CSF and plasma were available in 26 patients, respectively. Driver genes were detected in 100% (26/26), 84.6% (22/26), and 73.1% (19/26) of samples comprising CSF cell-free DNA (cfDNA), CSF precipitates, and plasma, respectively; 92.3% (24/26) of patients had much higher allele fractions in CSF cfDNA than the other two media. Unique genetic profiles were captured in CSF cfDNA compared with those in plasma and primary tissue. Multiple copy number variations (CNVs) were mainly identified in CSF cfDNA, and MET copy number gain identified in 47.8% (11/23) of patients was the most frequent one, while other CNVs included ERBB2, KRAS, ALK, and MYC. Moreover, loss of heterozygosity (LOH) of TP53 was identified in 73.1% (19/26) CSF cfDNA, which was much higher than that in plasma (2/26, 7.7%; P < 0.001). There was a trend towards a higher frequency of concomitant resistance mutations in patients with TP53 LOH than those without (70.6% versus 33.3%; P = 0.162). EGFR T790M was identified in CSF cfDNA of 30.4% (7/23) of patients who experienced TKI progression. Conclusion: CSF cfDNA could reveal the unique genetic profiles of LM and should be considered as the most representative liquid biopsy medium for LM in EGFR-mutant NSCLC. PMID- 29346605 TI - The US Food and Drug Administration's use of regular approval for cancer drugs based on single-arm studies: implications for subsequent evidence generation. PMID- 29346606 TI - Characteristics of Cases With Repeated Sexually Transmitted Infections, Massachusetts, 2014-2016. AB - Background: Persons with prior sexually transmitted infections (STIs) are at high risk for reinfection. No recent studies have examined frequency with which persons are diagnosed and reported with multiple bacterial STIs over time. Methods: We conducted a retrospective, of confirmed syphilis, gonorrhea, and chlamydial infections reported to Massachusetts state surveillance system within a 2-year period, 28 July 2014-27 July 2016. Results: Among Massachusetts population aged 13-65 years (4847510), 49142 (1.0%) were reported with >=1 STIs; 6999 (14.2% of those with >=1 STI) had >=2 STIs, accounting for 27.7% of STIs. Of cases with >=5 or more STIs (high-volume repeaters), 118 (74%) were men and 42 (26%) were women. Men spanned the age spectrum and were predominantly non Hispanic white; 87% reported same-sex contacts. Women were younger, predominantly nonwhite, and without known same-sex contacts. Women were reinfected with gonorrhea and chlamydia or chlamydia alone; none had syphilis or human immunodeficiency virus (HIV) infection. All men with syphilis also had gonorrhea and/or chlamydia; 35% were diagnosed with HIV before, during, or within 10 months after study period. The majority (56%) of high-volume repeaters were seen at more than 1 care site/system. Conclusions: In Massachusetts, a large proportion of bacterial STIs are reported from a small subpopulation, many of whom have repeated infections and are likely to have higher impact on STI and HIV rates. Public health can play a crucial role in reaching high-volume repeaters whose STI histories may be hidden from clinicians due to fragmented care. PMID- 29346607 TI - Combined Endovascular and Microsurgical Treatment of a Premotor Arteriovenous Malformation: 2-Dimensional Operative Video. PMID- 29346608 TI - On-Demand Intraoperative 3-Dimensional Printing of Custom Cranioplastic Prostheses. AB - BACKGROUND: Currently, implantation of patient-specific cranial prostheses requires reoperation after a period for design and formulation by a third-party manufacturer. Recently, 3-dimensional (3D) printing via fused deposition modeling has demonstrated increased ease of use, rapid production time, and significantly reduced costs, enabling expanded potential for surgical application. Three dimensional printing may allow neurosurgeons to remove bone, perform a rapid intraoperative scan of the opening, and 3D print custom cranioplastic prostheses during the remainder of the procedure. OBJECTIVE: To evaluate the feasibility of using a commercially available 3D printer to develop and produce on-demand intraoperative patient-specific cranioplastic prostheses in real time and assess the associated costs, fabrication time, and technical difficulty. METHODS: Five different craniectomies were each fashioned on 3 cadaveric specimens (6 sides) to sample regions with varying topography, size, thickness, curvature, and complexity. Computed tomography-based cranioplastic implants were designed, formulated, and implanted. Accuracy of development and fabrication, as well as implantation ability and fit, integration with exiting fixation devices, and incorporation of integrated seamless fixation plates were qualitatively evaluated. RESULTS: All cranioprostheses were successfully designed and printed. Average time for design, from importation of scan data to initiation of printing, was 14.6 min and average print time for all cranioprostheses was 108.6 min. CONCLUSION: On-demand 3D printing of cranial prostheses is a simple, feasible, inexpensive, and rapid solution that may help improve cosmetic outcomes; significantly reduce production time and cost-expanding availability; eliminate the need for reoperation in select cases, reducing morbidity; and has the potential to decrease perioperative complications including infection and resorption. PMID- 29346609 TI - Decreased Serum Levels of Ghrelin and Brain-Derived Neurotrophic Factor in Premenopausal Women With Metabolic Syndrome. AB - Objective: We aimed to investigate the association between serum levels of ghrelin and brain-derived neurotrophic factor (BDNF) with MetS and its components in premenopausal women. Methods: 43 patients with MetS and 43 healthy controls participated in this study. Participants' body mass index (BMI), waist circumference (WC), systolic and diastolic blood pressure (SBP and DBP) were measured. Serum levels of total cholesterol (TC), triglyceride (TG), low and high density lipoprotein cholesterol (LDL-C and HDL-C), fasting blood sugar (FBS), insulin, BDNF and ghrelin determined. Homeostasis model assessment insulin resistance index (HOMA-IR) was also calculated. Results: Participants in MetS group had higher waist-to-hip ratios, elevated SBP and DBP, and higher serum levels of TG, FBS and insulin when compared with the control group. Serum ghrelin and BDNF levels were significantly lower in participants with MetS than in the healthier control subjects. There was a strong, positive correlation between serum ghrelin and BDNF levels. Both proteins negatively correlated with TG, FBS, HOMA-IR and positively with HDL-C. Furthermore, serum BDNF levels negatively associated with insulin levels. Conclusions: The findings indicate that variations occur in the circulating level of ghrelin and BDNF proteins in MetS patients. A strong correlation between serum ghrelin and BDNF suggests that production, release or practice of these 2 proteins might be related mechanically. PMID- 29346610 TI - Novel mutations in the lipase H gene lead to secretion defects of LIPH in Chinese patients with autosomal recessive woolly hair/hypotrichosis (ARWH/HT). AB - Autosomal recessive woolly hair/hypotrichosis (ARWH/HT: OMIM #278150/604379) is a rare hereditary hair disease characterized by tightly curled hair at birth which can lead to sparse hair later in life. The mutations in both LIPH and LPAR6/P2RY5 are responsible for autosomal recessive woolly hair with or without hypotrichosis (ARWH/HT). To conduct clinical and genetic investigations in four patients from three unrelated Chinese Han families with ARWH/HT, we performed mutation screening of LIPH and LPAR6/P2RY5 gene and identified four mutations in LIPH: c.454G>A, c.614A>G, c.736T>A, c.742C>A. c.736T>A and c.742C>A mutations were reported in previous studies, and c.454G>A, c.614A>G were identified for the first time. We carried out functional studies of the two mutants with c.454G>A (p.Gly152Arg, G152R) or c.614A>G (p.His205Arg, H205R). Interestingly, both of them lead to secretion defects of LIPH, which are involved in the pathogenesis of ARWH/HT. PMID- 29346612 TI - Hyperpyrexia in a patient with a left ventricular assist device: a diagnosis beyond the obvious. AB - As the number of patients receiving a left ventricular assist device increases, physicians must always keep in mind that several conditions can present with non specific symptoms, such as fever, tachypnoea and confusion. We herein report the case of a left ventricular assist device patient who developed a life-threatening condition with acute hyperthermia, confusion and extremities' clonus and muscle spasms. The patient was diagnosed with serotonin syndrome, attributed to the coadministration of 2 commonly prescribed medications (citalopram and omeprazole). This case highlights that a significant proportion of left ventricular assist device patients is treated with serotonergic agents that may predispose them to the appearance of serotonin syndrome, a potentially life threatening condition. PMID- 29346611 TI - Combined roles of ATP and small hairpin RNA in the activation of RIG-I revealed by solution-based analysis. AB - RIG-I (retinoic acid inducible gene-I) is a cytosolic innate immune protein that senses viral dsRNA with a 5'-triphosphate overhang. Upon interaction with dsRNA a de-repression of the RIG-I CARD domains takes place that ultimately leads to the production of type I interferons and pro-inflammatory cytokines. Here we investigate the RIG-I conformational rearrangement upon interaction with an activating 5'-triphosphate-10-base pair dsRNA hairpin loop (10bp) compared with a less active 5'-triphosphate-8-base pair dsRNA hairpin loop (8bp). We use size exclusion chromatography-coupled small-angle X-ray scattering (SAXS) and limited tryptic digest experiments to show that that upon binding to 10 bp, but not 8 bp, RIG-I becomes extended and shows greater flexibility, reflecting the release of its CARDs. We also examined the effect of different ATP analogues on the conformational changes of RIG-I/dsRNA complexes. Of the analogues tested, the addition of ATP transition state analogue ADP-AlFx further assisted in the complete activation of RIG-I in complex with 10bp and also to some extent RIG-I bound to 8bp. Together these data provide solution-based evidence for the molecular mechanism of innate immune signaling by RIG-I as stimulated by short hairpin RNA and ATP. PMID- 29346613 TI - Review of chronic non-cancer pain research among Aboriginal people in Canada. AB - Purpose: Aboriginal people in Canada are disproportionately affected by chronic illnesses, compared to non-Aboriginal Canadians. The purpose of this review was to determine whether differences exist between the two groups with respect to chronic non-cancer pain (CNCP) in order to better inform clinical practice and to identify research gaps. Data sources: Four electronic databases were searched for the period of 1990-2015. Study selection: Only English and French language original studies that examined CNCP prevalence, assessment tools and beliefs among Aboriginal people in Canada were considered. Data extraction: Data extracted included Aboriginal group, geographic location, study setting and pain definition (for prevalence studies only). Results of data synthesis: A total of 11 studies matched the selection criteria: 10 reported estimates of chronic pain prevalence among Aboriginal people in Canada, 1 was about a culturally adapted pain assessment tool, and no study was found about CNCP beliefs within Aboriginal people. Conclusion: CNCP among Aboriginal people is still a largely unexplored research field. The limited evidence available so far does not allow us to conclude that CNCP affects a higher proportion of Aboriginal than non-Aboriginal people in Canada. However, arthritis, a specific condition associated with chronic pain, is more prevalent in Aboriginal than non-Aboriginal people. Additional research is needed on other CNCP types and conditions. Furthermore, pain assessment tools are not culturally adapted and clinicians should inquire more about the beliefs of Aboriginal patients to make them feel safer and to better target interventions. PMID- 29346614 TI - Influenza Vaccine Effectiveness Against Influenza A(H3N2) Hospitalizations in Children in Hong Kong in a Prolonged Season, 2016/2017. AB - Background: Influenza A(H3N2) viruses circulated for 12 consecutive months in Hong Kong in 2016-2017, peaking in late June and July 2017. The objective of our study was to estimate the effectiveness of influenza vaccination in preventing hospitalizations in children in Hong Kong. Methods: We conducted a test-negative study between 1 September 2016 and 31 August 2017, enrolling children 6 months to 17 years of age hospitalized for an acute respiratory infection. Influenza was diagnosed by PCR on nasopharyngeal aspirates. Results: We enrolled 5514 children, including 3608 children 6 months to 2 years, 1600 children 3-5 years, and 1206 children 6-17 years of age. Influenza-associated hospitalizations occurred throughout the study year but time of vaccination of these children was also wide spread, from September 2016 to May 2017. Influenza vaccine effectiveness (VE) was 39.7% (95% confidence interval [CI], 14.7%-57.3%) against laboratory-confirmed influenza A(H3N2). In analyses stratified by time since vaccination, the VE against influenza A(H3N2) was 52.8% (95% CI, 17.1%-73.2%) within 3 months of vaccination, and 31.2% (95% CI, -6.6% to 55.6%) 4-6 months after vaccination. Conclusions: Influenza vaccination was effective in preventing hospitalizations in children in Hong Kong. PMID- 29346615 TI - The RNA-splicing endonuclease from the euryarchaeaon Methanopyrus kandleri is a heterotetramer with constrained substrate specificity. AB - Four different types (alpha4, alpha'2, (alphabeta)2 and epsilon2) of RNA-splicing endonucleases (EndAs) for RNA processing are known to exist in the Archaea. Only the (alphabeta)2 and epsilon2 types can cleave non-canonical introns in precursor (pre)-tRNA. Both enzyme types possess an insert associated with a specific loop, allowing broad substrate specificity in the catalytic alpha units. Here, the hyperthermophilic euryarchaeon Methanopyrus kandleri (MKA) was predicted to harbor an (alphabeta)2-type EndA lacking the specific loop. To characterize MKA EndA enzymatic activity, we constructed a fusion protein derived from MKA alpha and beta subunits (fMKA EndA). In vitro assessment demonstrated complete removal of the canonical bulge-helix-bulge (BHB) intron structure from MKA pre-tRNAAsn. However, removal of the relaxed BHB structure in MKA pre-tRNAGlu was inefficient compared to crenarchaeal (alphabeta)2 EndA, and the ability to process the relaxed intron within mini-helix RNA was not detected. fMKA EndA X-ray structure revealed a shape similar to that of other EndA types, with no specific loop. Mapping of EndA types and their specific loops and the tRNA gene diversity among various Archaea suggest that MKA EndA is evolutionarily related to other (alphabeta)2-type EndAs found in the Thaumarchaeota, Crenarchaeota and Aigarchaeota but uniquely represents constrained substrate specificity. PMID- 29346616 TI - Racial differences in family health history knowledge of type 2 diabetes: exploring the role of interpersonal mechanisms. AB - Collecting complete and accurate family health history is critical to preventing type 2 diabetes. Whether there are any racial difference in family health history knowledge of type 2 diabetes and whether such differences are related to interpersonal mechanisms remain unclear. We seek to identify the interpersonal mechanisms that give rise to discrepancies in family health history knowledge of type 2 diabetes in families of different racial backgrounds. We analyze informant dyad consensus with respect to shared family history of type 2 diabetes in 127 informants of 45 families in the greater Cincinnati area (white: 28 families, 78 informants; black/African-American: 17 families, 49 informants). We first document a difference in informant-dyad consensus by race and then test whether this difference can be explained by interpersonal ties, particularly health communication. Compared with their white counterparts, dyads in families of black/African-American background are more likely to have an uneven distribution of knowledge, with one informant knowing and the other not knowing his/her family health history. The racial difference is explained by dyads in families of black/African-American background having fewer reciprocal health communication ties. While associated with informant-dyad consensus, education, kinship ties, and closeness ties do not account for the observed racial difference. Activating health communication is a key to improving family health history knowledge, especially in families of black/African-American background. Researchers and clinicians should leverage communication ties in the family network for better collection and utilization of family health history in preventive services. PMID- 29346617 TI - Riboswitching with ciprofloxacin-development and characterization of a novel RNA regulator. AB - RNA molecules play important and diverse regulatory roles in the cell. Inspired by this natural versatility, RNA devices are increasingly important for many synthetic biology applications, e.g. optimizing engineered metabolic pathways, gene therapeutics or building up complex logical units. A major advantage of RNA is the possibility of de novo design of RNA-based sensing domains via an in vitro selection process (SELEX). Here, we describe development of a novel ciprofloxacin responsive riboswitch by in vitro selection and next-generation sequencing-guided cellular screening. The riboswitch recognizes the small molecule drug ciprofloxacin with a KD in the low nanomolar range and adopts a pseudoknot fold stabilized by ligand binding. It efficiently interferes with gene expression both in lower and higher eukaryotes. By controlling an auxotrophy marker and a resistance gene, respectively, we demonstrate efficient, scalable and programmable control of cellular survival in yeast. The applied strategy for the development of the ciprofloxacin riboswitch is easily transferrable to any small molecule target of choice and will thus broaden the spectrum of RNA regulators considerably. PMID- 29346619 TI - Spurious Thrombocytopenia in Automated Platelet Count. AB - Spurious thrombocytopenia is a well-known phenomenon observed with the widespread use of hematology analyzers (HAs). In this study, 355 specimens with pseudo thrombocytopenia (PTCP) were evaluated via epidemiology, identification, remedies, and platelet (PLT) count. Data showed that anticoagulants such as citrate and/or heparin-dependent PTCP (16.0%) became increasingly common, whereas ethylenediaminetetraacetic acid (EDTA)-induced PTCP (49.1%) remained the most frequent. We note that that nearly half of the patients with PTCP had veritable decreased PLT counts, even after PLT levels had been corrected. Our findings suggest that there were seasonal changes in patients with PTCP: PLT levels were higher in spring, compared with other seasons, with winter levels being the lowest. There were higher risks of PTCP for individuals with malignant neoplasms, liver diseases, infection, and hematologic disease, compared with other conditions. PTCP is related to diseases, rather than being a simple phenomenon, and thus demands careful attention. PMID- 29346618 TI - Evidence of Adaptive Evolution and Relaxed Constraints in Sex-Biased Genes of South American and West Indies Fruit Flies (Diptera: Tephritidae). AB - Several studies have demonstrated that genes differentially expressed between sexes (sex-biased genes) tend to evolve faster than unbiased genes, particularly in males. The reason for this accelerated evolution is not clear, but several explanations have involved adaptive and nonadaptive mechanisms. Furthermore, the differences of sex-biased expression patterns of closely related species are also little explored out of Drosophila. To address the evolutionary processes involved with sex-biased expression in species with incipient differentiation, we analyzed male and female transcriptomes of Anastrepha fraterculus and Anastrepha obliqua, a pair of species that have diverged recently, likely in the presence of gene flow. Using these data, we inferred differentiation indexes and evolutionary rates and tested for signals of selection in thousands of genes expressed in head and reproductive transcriptomes from both species. Our results indicate that sex biased and reproductive-biased genes evolve faster than unbiased genes in both species, which is due to both adaptive pressure and relaxed constraints. Furthermore, among male-biased genes evolving under positive selection, we identified some related to sexual functions such as courtship behavior and fertility. These findings suggest that sex-biased genes may have played important roles in the establishment of reproductive isolation between these species, due to a combination of selection and drift, and unveil a plethora of genetic markers useful for more studies in these species and their differentiation. PMID- 29346620 TI - Combating Global Antibiotic Resistance: Emerging One Health Concerns in Lower- and Middle-Income Countries. AB - Antibiotic misuse in lower- and middle-income countries (LMICs) contributes to the development of antibiotic resistance that can disseminate globally. Strategies specific to LMICs that seek to reduce antibiotic misuse by humans, but simultaneously improve antibiotic access, have been proposed. However, most approaches to date have not considered the growing impact of animal and environmental reservoirs of antibiotic resistance, which threaten to exacerbate the antibiotic resistance crisis in LMICs. In particular, current strategies do not prioritize the impacts of increased antibiotic use for terrestrial food animal and aquaculture production, inadequate food safety, and widespread environmental pollution. Here, we propose new approaches that address emerging, One Health challenges. PMID- 29346621 TI - Assessing polymyalgia rheumatica activity when C-reactive protein is unavailable or uninterpretable. AB - Objective: The PMR activity score (PMR-AS) includes the CRP value, which may be lacking or invalid owing to anti-IL-6 therapy. Our objective was to develop alternatives to PMR-AS that do not require CRP. Methods: We used the Club Rhumatisme et Inflammation (CRI; 89 patients with PMR) and the Tolerance and Efficacy of tocilizumab iN pOlymyalgia Rheumatica (TENOR; 20 patients with recent onset PMR naive to glucocorticoid who received three tocilizumab infusions, at weeks 0, 4 and 8, followed by prednisone from weeks 12 to 24) cohorts. In the CRI cohort, we evaluated correlations between PMR-AS items to select the best item for imputing CRP. Then we calculated the PMR-AS with (PMR-AS) and without (clin PMR-AS) CRP and we used the linear regression between PMR-AS and clin-PMR-AS to obtain CRP-imputed (CRP-imp) PMR-AS. Finally, we evaluated agreement between clin PMR-AS, CRP-imp PMR-AS, PMR-AS and ESR-PMR-AS in the TENOR cohort during tocilizumab therapy. Results: In the CRI cohort, agreement between PMR-AS and clin-PMR-AS was excellent (kappa = 0.90). Linear regression between PMR-AS and clin-PMR-AS [CRP-imp PMR-AS = 1.12(clin-PMR-AS)+0.26] allowed us to build the CRP imp PMR-AS. Mean (s.d.) values were as follows: 8.40 (9.76) for PMR-AS, 7.24 (8.58) for clin-PMR-AS and 7.84 (9.61) for CRP-imp PMR-AS. CRP-imp PMR-AS agreed more closely with PMR-AS than did clin-PMR-AS. The results in the TENOR cohort confirmed that CRP-imp PMR-AS or ESR-PMR-AS could be used. Conclusion: Alternatives to the PMR-AS obtained without CRP can be used to monitor PMR activity in everyday practice in patients without available CRP values and in those receiving IL-6 antagonist therapy. PMID- 29346622 TI - A Nosocomial Foodborne Outbreak of a VIM Carbapenemase-Expressing Citrobacter freundii. AB - Background: A foodborne outbreak of VIM carbapenemase-expressing Citrobacter freundii (CPC) occurred between February 2016 and June 2016 at a major university hospital in Germany. Methods: An explosive increase in CPC isolated from rectal swabs of patients during weekly routine screening led to the declaration of an outbreak. A hospital-wide prevalence screening was initiated as well as screening of all patients on admission and before transfer to another ward, canteen staff, patient rooms, medical and kitchen inventory, and food. Swabs were streaked out on selective plates. All CPC isolates were analyzed using mass spectrometry, and selected isolates were analyzed using whole-genome sequencing. Results: A total of 76 were identified; most were unrelated cases in different wards. The CPC was isolated from retained samples of prepared vegetable salads and puddings and from a mixing machine used to prepare these foods only after an overnight culture. The immediate ban on serving potential source food resulted in a sharp decline and finally disappearance of novel cases. Repeated testing of presliced vegetables showed a high degree of contamination with C. freundii without a carbapenemase, indicating a possible source. Conclusions: An explosive increase in carbapenemase expressing Enterobacteriaceae contamination may have been caused by a foodborne source, and presliced vegetables should be taken into account as a putative pathogen repository. These findings underline the importance of appropriate cooling, transport, reheating, and distribution of meals and indicate that probing of nonorganic surfaces is limited by low sensitivity, which may be increased by additional overnight cultivation in appropriate media. PMID- 29346623 TI - A large-scale field study of bacterial communities in cereal aphid populations across Morocco. AB - Insects are frequently associated with bacteria that can have significant ecological and evolutionary impacts on their hosts. To date, few studies have examined the influence of environmental factors to microbiome composition of aphids. The current work assessed the diversity of bacterial communities of five cereal aphid species (Sitobion avenae, Rhopalosiphum padi, R. maidis, Sipha maydis and Diuraphis noxia) collected across Morocco, covering a wide range of environmental conditions. We aimed to test whether symbiont combinations are host or environment specific. Deep 16S rRNA sequencing enabled us to identify 17 bacterial operational taxonomic units (OTUs). The obligate symbiont Buchnera aphidicola was represented by five OTUs with multiple haplotypes in many single samples. Facultative endosymbionts were presented by a high prevalence of Regiella insecticola and Serratia symbiotica in S. avenae and Si. maydis, respectively. In addition to these symbiotic partners, Pseudomonas, Acinetobacter, Pantoea, Erwinia and Staphyloccocus were also identified in aphids, suggesting that the aphid microbiome is not limited to the presence of endosymbiotic bacteria. Beside a significant association between host species and bacterial communities, an inverse correlation was also found between altitude and alpha-diversity. Overall, our results support that symbiont combinations are mainly host specific. PMID- 29346624 TI - Data-driven approaches to define the upper limit of the intermovement interval of periodic leg movements during sleep. AB - Study Objectives: To define statistically the upper limit of the intermovement interval (IMI, the time interval between the onset of consecutive movements) of periodic leg movements during sleep (PLMS). Methods: We computed the IMI distribution of a large sample (n = 141) of patients with restless legs syndrome (RLS) and analyzed it with two independent approaches, based on fitting either empirical functions or normal and exponential functions to the data. Results: The two fitting approaches consistently pointed to an upper limit of the PLMS IMI in the range between 50 and 60 s. Decreasing the upper limit of PLMS IMI from 90 to 60 s evidently decreased the PLMS index in patients with RLS and control participants; nevertheless, the PLMS index remained significantly higher in RLS vs. control participants. Shifting the upper limit of PLMS IMI to 60 s did not significantly modify the effectiveness of discrimination of PLMS between controls and patients with RLS. Conclusion: These results seem to indicate that a conservative, yet data-driven upper limit for IMI contributing to the PLMS in patients with RLS might be 60 s instead of 90 s, as recommended by the present guidelines. PMID- 29346626 TI - Anti-aminoacyl tRNA synthetase antibody-positive clinically amyopathic dermatomyositis. PMID- 29346625 TI - Complete genomic and transcriptional landscape analysis using third-generation sequencing: a case study of Saccharomyces cerevisiae CEN.PK113-7D. AB - Completion of eukaryal genomes can be difficult task with the highly repetitive sequences along the chromosomes and short read lengths of second-generation sequencing. Saccharomyces cerevisiae strain CEN.PK113-7D, widely used as a model organism and a cell factory, was selected for this study to demonstrate the superior capability of very long sequence reads for de novo genome assembly. We generated long reads using two common third-generation sequencing technologies (Oxford Nanopore Technology (ONT) and Pacific Biosciences (PacBio)) and used short reads obtained using Illumina sequencing for error correction. Assembly of the reads derived from all three technologies resulted in complete sequences for all 16 yeast chromosomes, as well as the mitochondrial chromosome, in one step. Further, we identified three types of DNA methylation (5mC, 4mC and 6mA). Comparison between the reference strain S288C and strain CEN.PK113-7D identified chromosomal rearrangements against a background of similar gene content between the two strains. We identified full-length transcripts through ONT direct RNA sequencing technology. This allows for the identification of transcriptional landscapes, including untranslated regions (UTRs) (5' UTR and 3' UTR) as well as differential gene expression quantification. About 91% of the predicted transcripts could be consistently detected across biological replicates grown either on glucose or ethanol. Direct RNA sequencing identified many polyadenylated non-coding RNAs, rRNAs, telomere-RNA, long non-coding RNA and antisense RNA. This work demonstrates a strategy to obtain complete genome sequences and transcriptional landscapes that can be applied to other eukaryal organisms. PMID- 29346629 TI - HIV-1 Control and Immunoglobulin Genes. PMID- 29346627 TI - Severe and protracted sleep disruptions in mouse model of post-traumatic stress disorder. AB - Increasing evidences suggest that the predator threat model is a valid animal model of post-traumatic stress disorder (PTSD). However, sleep has never been examined in this model. Since sleep disturbances, including insomnia and excessive daytime sleepiness, are severe and protracted symptoms of PTSD, we hypothesized that mice exposed to predator odor trauma (POT) will display contextual fear conditioning along with severe and protracted sleep disruptions. Adult male C57BL/6J mice, instrumented with wire electrodes (to record hippocampal local field potentials [LFP] and nuchal muscle [electromyogram, EMG] activity), were exposed to contextual conditioning using soiled cat litter as unconditional stimulus (US). On day 1, fear memory acquisition (FMA) training was performed by exposing mice to contextual cage (conditional stimulus; CS) for 30 min followed by exposure to CS + US for 90 min. On day 5, fear memory recall (FMR) testing was performed by exposing mice to CS (without US) for 120 min. LFP and EMG were recorded continuously for 5 days. Mice exposed to POT displayed as follows: (1) hyperarousal coupled with electrophysiological indicators of memory acquisition and retrieval (increased hippocampal theta and gamma power) during FMA and FMR; (2) increased nonrapid eye movement (NREM) delta and rapid eye movement theta power during sleep post FMA, indicating memory consolidation; (3) protracted sleep disturbances as evident by increased wakefulness, reduced NREM sleep and NREM delta power, increased NREM beta power during light (sleep) period, and increased sleep during dark (active) period. Based on these results, we suggest that mice exposed to POT display severe and protracted sleep disturbances mimicking sleep disturbance observed in human PTSD. PMID- 29346630 TI - Vitamin D Toxicity: A 16-Year Retrospective Study at an Academic Medical Center. AB - Background: Interest in vitamin D has increased during the past 2 decades, with a corresponding increase in laboratory testing of 25-hydroxyvitamin D [25(OH)D]. The vast majority of specimens tested display normal or deficient levels of 25(OH)D; concentrations rarely fall in the potentially toxic range. Methods: We performed a retrospective investigation of elevated 25(OH)D levels during a 16 year period at the University of Iowa Hospitals and Clinics (UIHC), a 734-bed tertiary-/quaternary-care academic medical center in the midwestern United States. Detailed medical-record review was performed for patients with serum/plasma 25(OH)D concentrations higher than 120 ng per mL. Results: A total of 127,932 serum/plasma 25(OH)D measurements were performed on 73,779 unique patients. Of these patients, 780 (1.05%) had results that exceeded 80 ng per mL and 89 patients (0.12%) had results that exceeded 120 ng per mL. Only 4 patients showed symptoms of vitamin D toxicity. Three of these cases involved inadvertent misdosing of liquid formulations. Conclusions: Symptomatic vitamin D toxicity is uncommon, and elevated levels of 25(OH)D do not strongly correlate with clinical symptoms or total serum/plasma calcium levels. Our study highlights the potential risks of the liquid formulation of vitamin D. PMID- 29346631 TI - Anticardiolipin antibodies and 12-month graft function in kidney transplant recipients: a prognosis cohort survey. AB - Background: In kidney transplant recipients, anticardiolipin (ACL) antibodies without antiphospholipid syndrome (APS) are found in up to 38% of patients and could be associated with thrombotic events (TEs). However, the prognostic role of ACL regarding kidney transplant and patients outcomes have still not been well defined. Methods: We conducted an observational, monocentric, retrospective cohort study including 446 kidney transplant recipients and standardized follow up: 36-month allograft and patient survival, 12-month estimated glomerular filtration rate (eGFR) and 3- and 12-month screening biopsies. Results: ACL tests were run on 247 patients, 101 were positive (ACL+ group, 41%) and 146 were negative (ACL- group, 59%). Allografts and patient survival within 36 months as TE were similar between both groups [hazard ratio (HR) = 1.18 and HR = 0.98, respectively]. The 12-month eGFR was significantly lower in the ACL+ group [median (95% confidence interval) 48.5 (35.1-60.3) versus 51.9 (39.1-65.0) mL/min/1.73 m2, P= 0.042]. ACL+ was independently associated with eGFR decrease (P = 0.04). In 12-month screening biopsies, tubular atrophy was significantly more severe in the ACL+ group compared with the ACL- group (P = 0.02). Conclusions: ACL without APS before kidney transplantation is an independent risk factor of eGFR decline within the first year post-transplant without over incidence of TEs. Specific immunosuppressive therapy including mammalian target of rapamycin inhibitors should be discussed in the future. PMID- 29346632 TI - Diagnostic and Prognostic Value of JC Virus DNA in Plasma in Progressive Multifocal Leukoencephalopathy. AB - Background: Progressive multifocal leukoencephalopathy (PML) is a severe demyelinating disease caused by the polyomavirus JC (John Cunningham; JCV) that affects patients with impaired immune systems. While JCV-DNA detection in cerebrospinal fluid (CSF) is diagnostic of PML, the clinical significance of plasma JCV-DNA is uncertain. Methods: We retrospectively analyzed plasma samples from PML patients that were drawn close to disease onset and from controls without PML. In PML patients, we compared plasma JCV-DNA detection and levels to clinical and laboratory parameters, and patient survival. Results: JCV-DNA was detected in plasma of 49/103 (48%) patients with PML (20/24, 83%, human immunodeficiency virus [HIV] negative; 29/79, 37%, HIV-positive) and of 4/144 (3%) controls without PML (0/95 HIV-negative; 4/49, 8%, HIV-positive), yielding a diagnostic sensitivity and specificity of 48% and 97% (83% and 100% in HIV negative; 37% and 92% in HIV-positive), respectively. Among 16 PML patients with undetectable CSF JCV-DNA, 4 (25%) had detectable plasma JCV-DNA. Plasma JCV-DNA levels were independently associated with CSF levels (P < .0001) and previous corticosteroid treatment (P = .012). Higher plasma JCV-DNA levels were associated with disease progression in HIV-negative patients (P = .005); in HIV-positive patients, there was an increased risk of progression only in those treated with combination antiretroviral therapy (cART; P < .0001). Conclusions: Testing JCV DNA in plasma might complement PML diagnosis, especially when CSF is unavailable or JCV-DNA not detectable in CSF. In addition, JCV-DNA plasma levels could be useful as a marker of disease progression in both HIV-negative and cART-treated, HIV-positive PML patients. PMID- 29346633 TI - Intraoperative epicardial focal pulmonary venous electrocardiography in patients with atrial fibrillation. AB - OBJECTIVES: In patients referred to off-pump coronary artery bypass grafting, pulmonary vein isolation (PVI) may be used for those with persistent atrial fibrillation (AF), an alternative to the Maze procedure. However, the success rate of PVI in persistent AF is limited. The study assesses the prognostic value of focal epicardial electrocardiography of the pulmonary veins (PVs) for surgical ablation results. METHODS: We mapped 140 PV in 35 cases undergoing off-pump coronary artery bypass grafting. Data obtained using a sensing-pacing probe before ablation were analysed. The composite study end-point consisted of the need for electrical cardioversion for in-hospital recurrence of AF and the presence of AF at hospital discharge and after 6 months follow-up confirmed by 24 h Holter electrocardiographic monitoring. RESULTS: In patients with epicardial far-field (FF) signals recorded over at least 1 PV, the composite end-point occurred in 61% (14) vs 25% (3) of patients with no FF signal recorded over any PV (P = 0.04). The presence of FF signals in at least 1 PV significantly increased the risk of composite end-point occurrence (odds ratio 3; P = 0.04). The composite end-point occurred in 86% (6) of patients with FF signals recorded over all PVs and in 39% (11) in the remainder of the study population (P = 0.03). CONCLUSIONS: Intraoperative epicardial focal electrocardiography of PVs revealed more than 40% of PVs had only FF atrial signals. The presence of FF signals in PVs is related to a lower early effectiveness of PVI on ablating AF. Epicardial focal electrocardiography of PVs may be a clinically effective intraoperative tool in the decision-making process between less invasive PVI and the standard Maze procedure. PMID- 29346634 TI - Are people getting quality thalassemia care in twin cities of Pakistan? A comparison with international standards. AB - Objectives: This study was conducted to determine if thalassemia patients were getting quality care in Rawalpindi and Islamabad, Pakistan, as per international standards and to identify determinants for better quality of thalassemia care. Design: A cross sectional study was conducted using interview based structured questionnaire, which was developed using standards of thalassemia care used by International Thalassemia Foundation. Setting: Five healthcare facilities catering to the needs of thalassemia patients in Rawalpindi and Islamabad, Pakistan. Participants: Data were collected from 315 thalassemia patients from May to August, 2016. Main outcome measure: Survey data on quality indicators. Results: Results showed that almost half of thalassemia patients (48.5%) were getting poor quality of care. On average patients were getting only 63.93% of possible quality care for the disease. The most deficient quality area was management of complications where patients were getting only 49.1% of possible care. Better quality of care was likely to be received by those patients who were educated, patients with educated fathers, those visiting private facilities and those who were visiting facilities in Islamabad. Those with concomitant diseases were also likely to receive better care. Conclusion: Quality of care provided to thalassemia patients was well below the international standards for the care of thalassemia. There is a need to take urgent action to improve quality of care in the country. PMID- 29346635 TI - A scoping study of frameworks for adapting public health evidence-based interventions. AB - Evidence-based public health translation of research to practice is essential to improve the public's health. Dissemination and implementation researchers have explored what happens once practitioners adopt evidence-based interventions (EBIs) and have developed models and frameworks to describe the adaptation process. This scoping study identified and summarized adaptation frameworks in published reports and grey literature. We followed the recommended steps of a scoping study: (a) identifying the research question; (b) identifying relevant studies; (c) selecting studies; (d) charting the data; (e) collating, summarizing, and reporting the results; and (f) consulting with experts. We searched PubMed, PsycINFO, PsycNET, and CINAHL databases for articles referencing adaptation frameworks for public health interventions in the published and gray literature, and from reference lists of framework articles. Two reviewers independently coded the frameworks and their steps and identified common steps. We found 13 adaptation frameworks with 11 program adaptation steps: (a) assess community, (b) understand the EBI(s), (c) select the EBI, (d) consult with experts, (e) consult with stakeholders, (f) decide on needed adaptations, (g) adapt the original EBI, (h) train staff, (i) test the adapted materials, (j) implement the adapted EBI, and (k) evaluate. Eight of these steps were recommended by more than five frameworks: #1-3, 6-7, and 9-11. This study is the first to systematically identify, review, describe, and summarize frameworks for adapting EBIs. It contributes to the literature by consolidating key steps in program adaptation of EBIs and describing the associated tasks in each step. PMID- 29346636 TI - Tuberculosis among the homeless in Chennai city, South India. AB - Background: In India from a national perspective, the incidence/prevalence of active tuberculosis (TB) among the homeless are unknown. Methods: Homeless individuals, aged 15 years and above, were screened for TB by radiography and smear examination in Chennai city. Results: 301 individuals were enrolled and screened for TB; 8% (24/301) had chest symptoms; 5.6% (17/301) found X-ray abnormalities. The overall prevalence of TB was 1661/100 000; prevalence of culture-positive TB was 997/100 000 and smear-positive TB was 664/100 000 population. Conclusion: There is a need to address TB control among homeless populations. The current pilot study showed that the prevalence of TB was disproportionately high and there is a need for a larger study with an adequately powered sample size. PMID- 29346637 TI - Scleroderma renal crisis and cancer. PMID- 29346638 TI - Standardized languages and notations for graphical modelling of patient care processes: a systematic review. AB - Purpose: The importance of working toward quality improvement in healthcare implies an increasing interest in analysing, understanding and optimizing process logic and sequences of activities embedded in healthcare processes. Their graphical representation promotes faster learning, higher retention and better compliance. The study identifies standardized graphical languages and notations applied to patient care processes and investigates their usefulness in the healthcare setting. Data sources: Peer-reviewed literature up to 19 May 2016. Information complemented by a questionnaire sent to the authors of selected studies. Study selection: Systematic review conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Data extraction: Five authors extracted results of selected studies. Results of data synthesis: Ten articles met the inclusion criteria. One notation and language for healthcare process modelling were identified with an application to patient care processes: Business Process Model and Notation and Unified Modeling LanguageTM. One of the authors of every selected study completed the questionnaire. Users' comprehensibility and facilitation of inter-professional analysis of processes have been recognized, in the filled in questionnaires, as major strengths for process modelling in healthcare. Conclusion: Both the notation and the language could increase the clarity of presentation thanks to their visual properties, the capacity of easily managing macro and micro scenarios, the possibility of clearly and precisely representing the process logic. Both could increase guidelines/pathways applicability by representing complex scenarios through charts and algorithms hence contributing to reduce unjustified practice variations which negatively impact on quality of care and patient safety. PMID- 29346639 TI - Comparison of Dopamine D3 and D2 Receptor Occupancies by a Single Dose of Blonanserin in Healthy Subjects: A Positron Emission Tomography Study With [11C] (+)-PHNO. AB - Background: Blockade of D3 receptor, a member of the dopamine D2-like receptor family, has been suggested as a possible medication for schizophrenia. Blonanserin has high affinity in vitro for D3 as well as D2 receptors. We investigated whether a single dose of 12 mg blonanserin, which was within the daily clinical dose range (i.e., 8-24 mg) for the treatment of schizophrenia, occupies D3 as well as D2 receptors in healthy subjects. Methods: Six healthy males (mean 35.7+/-7.6 years) received 2 positron emission tomography scans, the first prior to taking blonanserin, and the second 2 hours after the administration of a single dose of 12 mg blonanserin. Dopamine receptor occupancies by blonanserin were evaluated by [11C]-(+)-PHNO. Results: Occupancy of each region by 12 mg blonanserin was: caudate (range 64.3%-81.5%; mean+/-SD, 74.3+/-5.6%), putamen (range 60.4%-84.3%; mean+/-SD, 73.3%+/-8.2%), ventral striatum (range 40.1%-88.2%; mean+/-SD, 60.8%+/-17.1%), globus pallidus (range 65.8%-87.6%; mean+/-SD, 75.7%+/-8.6%), and substantia nigra (range 56.0%-88.7%; mean+/-SD, 72.4%+/-11.0%). Correlation analysis between plasma concentration of blonanserin and receptor occupancy in D2-rich (caudate and putamen) and D3-rich (globus pallidus and substantia nigra) regions showed that EC50 for D2-rich region was 0.39 ng/mL (r=0.43) and EC50 for D3-rich region was 0.40 ng/mL (r=0.79). Conclusions: A single dose of 12 mg blonanserin occupied D3 receptor to the same degree as D2 receptor in vivo. Our results were consistent with previous studies that reported that some of the pharmacological effect of blonanserin is mediated via D3 receptor antagonism. PMID- 29346640 TI - Preventive chemotherapy to control soil-transmitted helminthiasis averted more than 500 000 DALYs in 2015. AB - Background: Preventive chemotherapy (PC), the large-scale administration of anthelminthics, is recommended by the World Health Organization (WHO) for the control of soil-transmitted helminthiasis (STH). Since 2010, donated anthelminthics for STH have boosted the implementation of PC programmes in children, achieving global coverage of more than 60% in 2015. The WHO Global Health Estimates attribute an annual loss of over 3.3 million disability-adjusted life-years (DALYs) to STH. The aim of this study is to estimate the impact of PC programmes on child morbidity. Method: We used data from the WHO Global Health Estimates, national coverage data on PC and the results of an evaluation of the impact of PC in 17 countries on morbidity previously conducted by our group. Results: We estimated that the implementation of PC averted in 2015 over 44% of the DALYs that would have been caused in children by STH without the control intervention. A reduction in morbidity of over 75% is expected, if the global target is reached in 2020. If the programme is subsequently maintained, morbidity from STH will be almost totally removed by 2025. Conclusions: In endemic areas, preventive chemotherapy provides a significant health benefit. We consider this estimation potentially useful to evaluate the cost utility of the investment made by several endemic countries on PC to control STH. PMID- 29346641 TI - Uncovering behavioural diversity amongst high-strength Pseudomonas spp. surfactants at the limit of liquid surface tension reduction. AB - Bacterial biosurfactants have a wide range of biological functions and biotechnological applications. Previous analyses had suggested a limit to their reduction of aqueous liquid surface tensions (gammaMin), and here we confirm this in an analysis of 25 Pseudomonas spp. strains isolated from soil which produce high-strength surfactants that reduce surface tensions to 25.2 +/- 0.1-26.5 +/- 0.2 mN m-1 (the surface tension of sterile growth medium and pure water was 52.9 +/- 0.4 mN m-1 and 72.1 +/- 1.2 mN m-1, respectively). Comparisons of culture supernatants produced using different growth media and semi-purified samples indicate that the limit of 24.2-24.7 mN m-1 is not greatly influenced by culture conditions, pH or NaCl concentrations. We have used foam, emulsion and oil displacement behavioural assays as a simple and cost-effective proxy for in-depth biochemical characterisation, and these suggest that there is significant structural diversity amongst these surfactants that may reflect different biological functions and offer new biotechnological opportunities. Finally, we obtained a draft genome for the strain producing the highest strength surfactant, and identified a cluster of non-ribosomal protein synthase genes that may produce a cyclic lipopeptide (CLP)-like surfactant. Further investigation of this group of related bacteria recovered from the same site will allow a better understanding of the significance of the great variety of surfactants produced by bacterial communities found in soil and elsewhere. PMID- 29346642 TI - RNase 7 but not psoriasin nor sPLA2-IIA associates with Mycobacterium tuberculosis during airway epithelial cell infection. AB - Tuberculosis is a disease caused by Mycobacterium tuberculosis (Mtb). Innate immunity is the first line of defense against Mtb and malfunctions in any of its components are associated with the susceptibility to the disease. Epithelial products such as host defense peptides (HDPs) are the first molecules produced to counteract the infection. Although a wide variety of HDPs are produced by epithelial cells only a few of them have been studied during Mtb infection. Here, we assessed the expression and production of the HDPs psoriasin, secreted phospholipases A2 (sPLA2-IIA) and Ribonuclease (RNase) 7 in airway epithelial cells (NCI-H292), type II pneumocytes (A549 cells) and monocyte-derived macrophages from human peripheral blood mononuclear cells and from the human cell line THP1 after Mtb in vitro infection. Results show that psoriasin and sPLA2-IIA were not induced by Mtb in any of the evaluated cells, while RNase 7 was overexpressed in infected airway epithelial cells. Intracellular analysis by flow cytometry demonstrated that the highest levels of RNase 7 were observed 6 h post infection and the induction was dependent on direct interaction between airway epithelial cells and Mtb. In addition, analysis by electron microscopy showed that RNase 7 was capable of attaching to the cell wall of intracellular mycobacteria. Our studies suggest that the induction of RNase 7 in response to Mtb could have a role in anti-mycobacterial immunity, which needs to be studied as an innate immune mechanism. PMID- 29346643 TI - Genetic characterization of a VanG-type vancomycin-resistant Enterococcus faecium clinical isolate. AB - Objectives: To characterize, phenotypically and genotypically, the first Enterococcus faecium clinical isolate harbouring a vanG operon. Methods: The antibiotic resistance profile of E. faecium 16-346 was determined and its whole genome sequenced using PacBio technology. Attempts to transfer vancomycin resistance by filter mating were performed and the inducibility of expression of the vanG operon was studied by reverse-transcription quantitative PCR (RT-qPCR) in the presence or absence of subinhibitory concentrations of vancomycin. Results: E. faecium 16-346 was resistant to rifampicin (MIC >4 mg/L), erythromycin (MIC >4 mg/L), tetracycline (MIC >16 mg/L) and vancomycin (MIC 8 mg/L), but susceptible to teicoplanin (MIC 0.5 mg/L). The strain harboured the vanG operon in its chromosome, integrated in a 45.5 kb putative mobile genetic element, similar to that of Enterococcus faecalis BM4518. We were unable to transfer vancomycin resistance from E. faecium 16-346 to E. faecium BM4107 and E. faecalis JH2-2. Lastly, transcription of the vanG gene was inducible by vancomycin. Conclusions: This is, to the best of our knowledge, the first report of a VanG-type vancomycin-resistant strain of E. faecium. Despite the alarm pulled because of the therapeutic problems caused by VRE, our work shows that new resistant loci can still be found in E. faecium. PMID- 29346644 TI - Genome-wide analysis of disease progression in age-related macular degeneration. AB - Family- and population-based genetic studies have successfully identified multiple disease-susceptibility loci for Age-related macular degeneration (AMD), one of the first batch and most successful examples of genome-wide association study. However, most genetic studies to date have focused on case-control studies of late AMD (choroidal neovascularization or geographic atrophy). The genetic influences on disease progression are largely unexplored. We assembled unique resources to perform a genome-wide bivariate time-to-event analysis to test for association of time-to-late-AMD with ~9 million variants on 2721 Caucasians from a large multi-center randomized clinical trial, the Age-Related Eye Disease Study. To our knowledge, this is the first genome-wide association study of disease progression (bivariate survival outcome) in AMD genetic studies, thus providing novel insights to AMD genetics. We used a robust Cox proportional hazards model to appropriately account for between-eye correlation when analyzing the progression time in the two eyes of each participant. We identified four previously reported susceptibility loci showing genome-wide significant association with AMD progression: ARMS2-HTRA1 (P = 8.1 * 10-43), CFH (P = 3.5 * 10-37), C2-CFB-SKIV2L (P = 8.1 * 10-10) and C3 (P = 1.2 * 10-9). Furthermore, we detected association of rs58978565 near TNR (P = 2.3 * 10-8), rs28368872 near ATF7IP2 (P = 2.9 * 10-8) and rs142450006 near MMP9 (P = 0.0006) with progression to choroidal neovascularization but not geographic atrophy. Secondary analysis limited to 34 reported risk variants revealed that LIPC and CTRB2-CTRB1 were also associated with AMD progression (P < 0.0015). Our genome-wide analysis thus expands the genetics in both development and progression of AMD and should assist in early identification of high risk individuals. PMID- 29346645 TI - Performance of an easy-to-use prediction model for renal patient survival: an external validation study using data from the ERA-EDTA Registry. AB - Background: An easy-to-use prediction model for long-term renal patient survival based on only four predictors [age, primary renal disease, sex and therapy at 90 days after the start of renal replacement therapy (RRT)] has been developed in The Netherlands. To assess the usability of this model for use in Europe, we externally validated the model in 10 European countries. Methods: Data from the European Renal Association-European Dialysis and Transplant Association (ERA EDTA) Registry were used. Ten countries that reported individual patient data to the registry on patients starting RRT in the period 1995-2005 were included. Patients <16 years of age and/or with missing predictor variable data were excluded. The external validation of the prediction model was evaluated for the 10- (primary endpoint), 5- and 3-year survival predictions by assessing the calibration and discrimination outcomes. Results: We used a data set of 136 304 patients from 10 countries. The calibration in the large and calibration plots for 10 deciles of predicted survival probabilities showed average differences of 1.5, 3.2 and 3.4% in observed versus predicted 10-, 5- and 3-year survival, with some small variation on the country level. The concordance index, indicating the discriminatory power of the model, was 0.71 in the complete ERA-EDTA Registry cohort and varied according to country level between 0.70 and 0.75. Conclusions: A prediction model for long-term renal patient survival developed in a single country, based on only four easily available variables, has a comparably adequate performance in a wide range of other European countries. PMID- 29346647 TI - Resistance to Selected Pyrethroid Insecticides in the Malaria Mosquito, Anopheles stephensi (Diptera: Culicidae), From Punjab, Pakistan. AB - Pyrethroids are commonly used insecticides in malaria control programs; however, insecticide resistance limits the benefits gained by using these insecticides. In the present study, we assessed the resistance status for different pyrethroids of the malaria mosquito vector, Anopheles stephensi Liston (Diptera: Culicidae), in the Punjab province, Pakistan. Bioassays were conducted using diagnostic doses following standard World Health Organization protocols: 0.05% lambda-cyhalothrin, 0.75% permethrin, 0.15% cyfluthrin, 0.05% deltamethrin, and 0.1% cypermethrin. Field collected An. stephensi from four localities in Punjab (Khanewal, Multan, Lodhran, and Bahawalpur) were reared in the laboratory, and non-blood-fed females were used in the bioassays. An. stephensi from all the study sites except Khanewal were found to be susceptible to permethrin and deltamethrin. Resistance or potential resistance to cypermethrin, lambda-cyhalothrin and cyfluthrin was observed from all the study sites. The median and 95% knockdown times (KDT50 and KDT95) estimates for all the tested insecticides also showed similar responses. In conclusion, the study revealed resistance to selected pyrethroids in An. stephensi from some parts of Punjab, Pakistan, underscoring the need to devise a resistance management strategy for effective control of this important malaria vector. PMID- 29346646 TI - The Evolutionary History of Nebraska Deer Mice: Local Adaptation in the Face of Strong Gene Flow. AB - The interplay of gene flow, genetic drift, and local selective pressure is a dynamic process that has been well studied from a theoretical perspective over the last century. Wright and Haldane laid the foundation for expectations under an island-continent model, demonstrating that an island-specific beneficial allele may be maintained locally if the selection coefficient is larger than the rate of migration of the ancestral allele from the continent. Subsequent extensions of this model have provided considerably more insight. Yet, connecting theoretical results with empirical data has proven challenging, owing to a lack of information on the relationship between genotype, phenotype, and fitness. Here, we examine the demographic and selective history of deer mice in and around the Nebraska Sand Hills, a system in which variation at the Agouti locus affects cryptic coloration that in turn affects the survival of mice in their local habitat. We first genotyped 250 individuals from 11 sites along a transect spanning the Sand Hills at 660,000 single nucleotide polymorphisms across the genome. Using these genomic data, we found that deer mice first colonized the Sand Hills following the last glacial period. Subsequent high rates of gene flow have served to homogenize the majority of the genome between populations on and off the Sand Hills, with the exception of the Agouti pigmentation locus. Furthermore, mutations at this locus are strongly associated with the pigment traits that are strongly correlated with local soil coloration and thus responsible for cryptic coloration. PMID- 29346648 TI - EsrB negatively regulates expression of the glutamine sythetase GlnA in the fish pathogen Edwardsiella piscicida. AB - Edwardsiella piscicida is a gram-negative bacterial pathogen invading a wide range of fish species. Response regulator EsrB is essential for the activation of type III and type VI secretion systems (T3/T6SS). In this study, proteomes of the wild-type E. piscicida EIB202 and DeltaesrB mutant strains were compared to identify the regulon components of EsrB cultured in DMEM allowing T3/T6SS expression. As a result, 19 proteins showed different expression, which were identified to be associated with T3/T6SS, related to amino acid transport and metabolism, and energy production. Particularly, GlnA, a glutamine synthetase essential for ammonia assimilation and glutamine biosynthesis from glutamate, was found to be regulated negatively by EsrB. Moreover, GlnA affected bacterial growth in vitro and bacterial colonization in vivo. Collectively, our results indicated that EsrB plays important roles in regulating the expression of metabolic pathways and virulence genes, including glutamine biosynthesis in E. piscicida during infection. PMID- 29346649 TI - Endothelial function in rheumatoid arthritis. AB - Background: Rheumatoid arthritis (RA) patients are at higher risk of accelerated atherosclerosis. Aims: To assess endothelial dysfunction in RA to find a possible mechanistic pathway that will explain the clinical phenomenon. Methods: A prospective study recruited 44 RA patients with an active long standing (>12 months) disease. All underwent a detailed assessment of disease activity. To estimate the endothelial function the brachial artery method was performed, measuring flow mediated diameter percent (FMD%) change. Clustering analyses (hierarchical and k-means) were performed. Patients were compared to healthy subjects. Results: Forty four RA patients (54.42 +/- 11.14 years, females (72.7%)) with co-morbidities (70.5%), not taking tumor necrosis factor-blockers or disease modifying anti rheumatic drugs (63.6%). Only 6 (13.6%) had a normal endothelial function. Hierarchical and k-means clustering techniques showed statistically significant differences among the three clusters concerning disease activity score-28 (DAS-28)- erythrocyte sedimentation rate (ESR) (P = 0.000), DAS 28- C-reactive protein (CRP; P = 0.001), clinical disease activity index (P = 0.002), simplified disease activity index (P = 0.001), ESR (P = 0.000), (CRP) (P = 0.003) and FMD% (P = 0.009). The group with the highest FMD% values exhibited the lowest clinical scores and laboratory parameters. Patients with the lowest FMD% values co-clustered with subjects with positive but low FMD% changes and elevated clinical and laboratory parameters. Conclusions: Our study confirmed the feasibility of exploiting endothelial function in clinical practice as an early predictor of atherosclerosis in RA patients. PMID- 29346650 TI - Persistence of Zika Virus After Birth: Clinical, Virological, Neuroimaging, and Neuropathological Documentation in a 5-Month Infant With Congenital Zika Syndrome. AB - During the Zika epidemic in Brazil, a baby was born at term with microcephaly and arthrogryposis. The mother had Zika symptoms at 10 weeks of gestation. At 17 weeks, ultrasound showed cerebral malformation and ventriculomegaly. At 24 weeks, the amniotic fluid contained ZIKV RNA and at birth, placenta and maternal blood were also positive using RT-qPCR. At birth the baby urine contained ZIKV RNA, whereas CSF at birth and urine at 17 days did not. Seizures started at 6 days. EEG was abnormal and CT scan showed cerebral atrophy, calcifications, lissencephaly, ventriculomegaly, and cerebellar hypoplasia. Bacterial sepsis at 2 months was treated. A sudden increase in head circumference occurred at 4 months necessitating ventricle-peritoneal shunt placement. At 5 months, the infant died with sepsis due to bacterial meningitis. Neuropathological findings were as severe as some of those found in neonates who died soon after birth, including hydrocephalus, destructive lesions/calcification, gliosis, abnormal neuronal migration, dysmaturation of nerve cells, hypomyelination, loss of descending axons, and spinal motor neurons. ZIKV RNA was detected only in frozen brain tissue using RT-qPCR, but infected cells were not detected by in situ hybridization. Progressive gliosis and microgliosis in the midbrain may have contributed to aqueduct compression and subsequent hydrocephalus. The etiology of progressive disease after in utero infection is not clear and requires investigation. PMID- 29346652 TI - Toward rational antibody design: recent advancements in molecular dynamics simulations. AB - Because antibodies have become an important therapeutic tool, rational antibody design is a challenging issue involving various science and technology fields. From the computational aspect, many types of design-assist methods have been developed, but their accuracy is not fully satisfactory. Because of recent advancements in computational power, molecular dynamics (MD) simulation has become a helpful tool to trace the motion of proteins and to characterize their properties. Thus, MD simulation has been applied to various systems involving antigen-antibody complexes and has been shown to provide accurate insight into antigen-antibody interactions and dynamics at an atomic resolution. Therefore, it is highly possible that MD simulation will play several roles complementing the conventional antibody design. In this review, we address several important features of MD simulation in the context of rational antibody design. PMID- 29346651 TI - Bipartite Network Analysis of Gene Sharings in the Microbial World. AB - Extensive microbial gene flows affect how we understand virology, microbiology, medical sciences, genetic modification, and evolutionary biology. Phylogenies only provide a narrow view of these gene flows: plasmids and viruses, lacking core genes, cannot be attached to cellular life on phylogenetic trees. Yet viruses and plasmids have a major impact on cellular evolution, affecting both the gene content and the dynamics of microbial communities. Using bipartite graphs that connect up to 149,000 clusters of homologous genes with 8,217 related and unrelated genomes, we can in particular show patterns of gene sharing that do not map neatly with the organismal phylogeny. Homologous genes are recycled by lateral gene transfer, and multiple copies of homologous genes are carried by otherwise completely unrelated (and possibly nested) genomes, that is, viruses, plasmids and prokaryotes. When a homologous gene is present on at least one plasmid or virus and at least one chromosome, a process of "gene externalization," affected by a postprocessed selected functional bias, takes place, especially in Bacteria. Bipartite graphs give us a view of vertical and horizontal gene flow beyond classic taxonomy on a single very large, analytically tractable, graph that goes beyond the cellular Web of Life. PMID- 29346653 TI - Emergence of acute/subacute infant-juvenile paracoccidioidomycosis in Northeast Argentina: Effect of climatic and anthropogenic changes? AB - Argentina has two endemic areas of paracoccidioidomycosis (PCM). Bordering Paraguay and Brazil, Northeast Argentina (NEA) comprises the area with the highest incidence where the chronic adult clinical form has historically been reported. Juvenile form in children and adolescents is rare in this area since only one case was reported in the last 10 years. Despite this, between 2010 and 2012, several cases of acute/subacute clinical forms in children aged 10 to 16 (median 12) were detected. In the last decade, the NEA region has been exposed to ecological variations as consequences of certain climatic and anthropogenic changes, including El Nino-Southern Oscillation phenomenon during 2009, and deforestation. The region has also suffered from the significant ecological effects of the construction of one of the biggest hydroelectric dams of South America. This study aims to describe clinical and epidemiological aspects of acute/subacute PCM cases detected in children from NEA and to discuss climatic and anthropogenic changes as possible contributing factors in the emergence of this disease in children. This acute/subacute PCM cluster was characterized by severe disseminated and aggressive presentations to localized form, with a high spectrum of clinical manifestations uncommonly observed. Due to the lack of experience in acute/subacute PCM in children in the studied area and the atypical clinical manifestations observed, the diagnosis was delayed. In order to avoid misdiagnosis, a higher level of suspicion is now required in NEA and countries bordering the southern part of the endemic area, which are affected by the changes discussed in this article. PMID- 29346654 TI - Evaluation of system mapping approaches in identifying patient safety risks. AB - Objective: While many system mapping approaches (SMAs) have been broadly used in safety-critical industries, few have so far been employed in the healthcare field to assist in the identification of patient safety risks. In this study, we evaluated a set of system modelling approaches to assess their potential contribution to the identification of risks affecting patient safety. The aim was to gain a greater understanding of the practical application of system modelling approaches with the help of the risk categorization framework developed in this study. Setting: We conducted this study in a newly established Adult Attention Deficit Hyperactivity Disorder (ADHD) service at Cambridge and Peterborough Foundation Trust. Study participants: Eight key stakeholders of the chosen service, including clinicians, managers and administrative staff, were individually asked to evaluate a set of pre-defined six SMAs according to their usefulness in identifying patient safety risks through interview-based questionnaires. Results: It was found that each SMA could be useful in the chosen healthcare service in different ways. Further, specific types of diagrams were selected by stakeholders as more useful than others in identifying different sources of risks within the given system. Conclusions: The results of the evaluation showed that the system diagram is the most useful SMA in risk identification within the given system, while limited time, resources and experience of stakeholders with SMAs may present possible obstacles for their potential use in the healthcare field in future. PMID- 29346656 TI - Host responses to intestinal nematodes. AB - Helminth infection remains common in developing countries, where residents who suffer from the consequences of such infections can develop serious physical and mental disorders and often persist in the face of serious economic problems. Intestinal nematode infection induces the development of Th2-type immune responses including the B-cell IgE response; additionally, this infection induces an increase in the numbers and activation of various types of effector cells, such as mast cells, eosinophils and basophils, as well as the induction of goblet cell hyperplasia, anti-microbial peptide production and smooth-muscle contraction, all of which contribute to expel nematodes. Innate immunity is important in efforts to eliminate helminth infection; cytokines, including IL-25, IL-33 and thymic stromal lymphopoietin, which are products of epithelial cells and mast cells, induce Th2 cells and group 2 innate lymphoid cells to proliferate and produce Th2 cytokines. Nematodes also facilitate chronic infection by suppression of immune reactions through an increased number of Treg cells. Immunosuppression by parasite infection may ultimately be beneficial for the host animals; indeed, a negative correlation has been found between parasite infection and the prevalence of inflammatory disease in humans. PMID- 29346655 TI - Does the Additional Component of Calf Circumference Refine Metabolic Syndrome in Correlating With Cardiovascular Risk? AB - Context: Calf circumference (CC) was a useful anthropometric tool, but there was limited study on the effect of CC on metabolic syndrome (MetS) for cardiovascular risk. Objective: The objective of our study was to determine whether adding CC as a component of MetS refined correlating MetS with cardiovascular, all-cause, and cancer mortality risks. Design, Setting, Patients, and Interventions: From the National Health and Nutrition Examination Survey data set for 1999 through 2002, we analyzed four types of MetS: (1) increased waist circumference and two or more of four MetS components (WaistMetS); (2) decreased CC and two or more of four MetS components (CalfMetS); (3) increased waist-to-calf ratio and two or more of four MetS components (WCRMetS); and (4) decreased CC and three or more of five MetS components (CC+MetS). Primary Outcome Measure: The cause-specific hazard ratios were measured as categorized by the four types of MetS. Results: For cardiovascular mortality, the adjusted hazard ratios for WaistMetS, CalfMetS, WCRMetS, and CC+MetS were 1.867, 1.871, 1.949, and 2.306, respectively (all P < 0.001). Notably, CalfMetS showed the strongest positive correlation with serum C reactive protein levels, and WCRMetS had the strongest positive relationship with homeostasis model assessment of insulin resistance. Conclusions: Adding CC to the components of MetS correlated with higher cardiovascular and all-cause mortality risk than the traditional definition of MetS. PMID- 29346657 TI - Perspectives on Queer Music Therapy: A Qualitative Analysis of Music Therapists' Reactions to Radically Inclusive Practice. AB - Background: The queer music therapy model was designed by Bain, Grzanka, and Crowe in 2016 as a novel therapeutic approach to affirm and empower LGBTQ+ identity through music. No data have been generated on how this model might actually be implemented, or the strengths and limitations of the model according to music therapy professionals. Objective: The purpose of this study was to build on Bain and colleagues' work by collecting music therapists' perspectives on queer music therapy and using these data to critically evaluate the model. Methods: Semi-structured qualitative interviews were conducted with twelve music therapists who identify as LGBTQ+ or have experience working with LGBTQ+ clients. Participants were prompted to discuss their music therapy backgrounds, experiences with LGBTQ+ clients, and reactions to the queer music therapy model. Interviews were analyzed using a critical discourse analysis approach. Results: The qualitative findings revealed major strengths of the queer music therapy model and ways in which it could be improved by attending to: (a) the structural limitations of the music therapy discipline, including the demographic composition of the field and lack of critical perspectives in music therapy training; and (b) intersectional considerations of ageism and ableism within diverse LGBTQ+ populations. Conclusions: Queer music therapy has positive implications for future work with LGBTQ+ individuals, but it must more substantively integrate intersectionality theory to serve a diverse range of LGBTQ+ clients. Further, it must critically attend to the structural limitations of the music therapy discipline itself. PMID- 29346658 TI - Potential for diet to prevent and remediate cognitive deficits in neurological disorders. AB - The pathophysiology of many neurological disorders involves oxidative stress, neuroinflammation, and mitochondrial dysfunction. There is now substantial evidence that diet can decrease these forms of pathophysiology, and an emerging body of literature relatedly suggests that diet can also prevent or even remediate the cognitive deficits observed in neurological disorders that exhibit such pathology (eg, Alzheimer's disease, multiple sclerosis, age-related cognitive decline, epilepsy). The current review summarizes the emerging evidence in relation to whole diets prominent in the scientific literature-ketogenic, caloric restriction, high polyphenol, and Mediterranean diets-and provides a discussion of the possible underlying neurophysiological mechanisms. PMID- 29346659 TI - Case Report: Facial Nerve Bifurcation Noted During Resection of Vestibular Schwannoma. AB - BACKGROUND AND IMPORTANCE: Resection of cerebellopontine angle tumors is challenging because the proximity of the facial nerve puts it at risk of inadvertent injury and subsequent dysfunction. It is critical to consider variations in anatomy and be aware of the potential deviations in the course of the nerve in order to avoid damage. CLINICAL PRESENTATION: We present a case of a facial nerve bifurcation identified during resection of a vestibular schwannoma. CONCLUSION: This is the only reported case of proximal facial nerve bifurcation. We review what is known about variations in proximal facial nerve anatomy, the rates of facial nerve injury after schwannoma resection, and the importance of neuromonitoring in identifying the nerve and predicting function postoperatively. Ultimately, understanding possible anatomic variations in the nerve is critical to minimize iatrogenic injury during surgery. PMID- 29346660 TI - Herpes zoster and Hutchinson's sign. PMID- 29346661 TI - The role of healthcare and education systems in co-occurrence of health risk behaviours in 27 European countries. AB - Background: Contextual factors play an important role in health and related behaviours. This study aims to examine the association of co-occurrence of five health-risk behaviours with healthcare and education contextual factors using nationally representative samples from 27 European countries. Methods: Data were from Eurobarometer 72.3, 2009. The outcome was a count variable ranging from 0 to 5 indicating co-occurrence of five health-risk behaviours, namely smoking, excessive alcohol consumption, non-frequent fresh fruit consumption, physical inactivity and non-dental check-ups. Public expenditures on healthcare and education as a percentage of GDP and quality of healthcare and education at a country-level were used as contextual factors. A set of multilevel Poisson regression models were conducted to examine the associations between co occurrence of health-risk behaviours and each of the contextual factors considering age, gender, marital status, urbanisation, individual socioeconomic positions (education, subjective social status or difficulty in paying bills) and GDP per capita. Results: The total population was 23 842. Greater expenditures on healthcare and education, and better quality of healthcare systems had negative associations with co-occurrence of health-risk behaviours in the model adjusted for all individual demographic indicators. However, statistical significance disappeared after adjusting for socioeconomic indicators and GDP per capita. Conclusion: While the study highlights the importance of developing high-quality healthcare and education systems generously supported by public fund in relation to co-occurrence of health-risk behaviours, the influence of contextual factors in adopting health-related behaviours is probably attenuated by individual socioeconomic factors. PMID- 29346662 TI - Shifting determinants of health inequalities in unstable times: Portugal as a case study. AB - Background: We explore how health inequalities (HI) changed in Portugal over the last decade, considering it is one of the most unequal European countries and has gone through major economic changes. We describe how inequalities in limitations changed considering different socioeconomic determinants, in order to understand what drove changes in HI. Methods: We used cross-sectional waves from the European Survey on Income and Living Conditions database to determine how inequalities in health limitations changed between 2004 and 2014 in Portugal in residents aged 16 years and over. We calculated prevalence estimates of limitations and differences between income terciles, the concentration index for each year and its decomposition and multiple logistic regressions to estimate the association between socioeconomic determinants and limitations. Results: The prevalence of health limitations increased in Portugal since 2004, especially after 2010, from 35 to 47%. But the difference between top and bottom income terciles decreased from 23 to 10 percentage points, as richer people experienced a steeper increase. This was driven by an increase in prevalence among economically active people, who, from 2011 onwards, had more limitations (OR and 95% CI were 2.42 [2.13-2.75] in 2004 and 0.71 [0.65-0.78] in 2014). Conclusion: These results suggest worsening health in Portugal in the last decade, possibly connected to periods of economic instability. However, absolute HI decreased considerably in the same period. We discuss the possible role of diverse adaptation capacity of socioeconomic groups, and of high emigration rates of young, healthier people, reflecting another side of the 'migrant health effect'. PMID- 29346664 TI - Challenges for prevention research. PMID- 29346663 TI - Resident participation in neighbourhood audit tools - a scoping review. AB - Background: Healthy urban environments require careful planning and a testing of environmental quality that goes beyond statutory requirements. Moreover, it requires the inclusion of resident views, perceptions and experiences that help deepen the understanding of local (public health) problems. To facilitate this, neighbourhoods should be mapped in a way that is relevant to them. One way to do this is participative neighbourhood auditing. This paper provides an insight into availability and characteristics of participatory neighbourhood audit instruments. Methods: A scoping review in scientific and grey literature, consisting of the following steps: literature search, identification and selection of relevant audit instruments, data extraction and data charting (including a work meeting to discuss outputs), reporting. Results: In total, 13 participatory instruments were identified. The role of residents in most instruments was as 'data collectors'; only few instruments included residents in other audit activities like problem definition or analysis of data. The instruments identified focus mainly on physical, not social, neighbourhood characteristics. Paper forms containing closed-ended questions or scales were the most often applied registration method. Conclusions: The results show that neighbourhood auditing could be improved by including social aspects in the audit tools. They also show that the role of residents in neighbourhood auditing is limited; however, little is known about how their engagement takes place in practice. Developers of new instruments need to balance not only social and physical aspects, but also resident engagement and scientific robustness. Technologies like mobile applications pose new opportunities for participative approaches in neighbourhood auditing. PMID- 29346665 TI - Moving towards compulsory vaccination: the Italian experience. PMID- 29346666 TI - Gypsy, Roma and Traveller access to and engagement with health services: a systematic review. AB - Background: Gypsy, Roma and Traveller people represent the most disadvantaged minority groups in Europe, having the poorest health outcomes. This systematic review addressed the question of how Gypsy, Roma and Traveller people access healthcare and what are the best ways to enhance their engagement with health services. Methods: Searches were conducted in 21 electronic databases complemented by a focussed Google search. Studies were included if they had sufficient focus on Gypsy, Roma or Traveller populations; reported data pertinent to healthcare service use or engagement and were published in English from 2000 to 2015. Study findings were analyzed thematically and a narrative synthesis reported. Results: Ninety-nine studies from 32 countries were included, covering a range of health services. Nearly one-half of the presented findings related to primary healthcare services. Reported barriers to health service usage related to organisation of health systems, discrimination, culture and language, health literacy, service-user attributes and economic barriers. Promising engagement strategies included specialist roles, outreach services, dedicated services, raising health awareness, handheld records, training for staff and collaborative working. Conclusion: This review provides evidence that Gypsy, Roma and Traveller populations across Europe struggle to exercise their right to healthcare on account of multiple barriers; and related to other determinants of disadvantage such as low literacy levels and experiences of discrimination. Some promising strategies to overcome barriers were reported but the evidence is weak; therefore, rigorous evaluations of interventions to improve access to and engagement with health services for Gypsy, Roma and Traveller people are needed. PMID- 29346667 TI - The Results of Hemoglobin Variant Analysis in Patients Revealing Microcytic Erythrocytosis on Complete Blood Count. AB - Background: Microcytic erythrocytosis is an underrecognized and underevaluated complete blood count (CBC) finding. The literature pertaining to the determination of its etiology specifically by hemoglobin variant analysis is limited. Methods: We performed hemoglobin variant analysis by high performance liquid chromatography on 137 patients who revealed microcytic erythrocytosis on CBC, and reviewed the results for the diagnosis of hemoglobin-associated disorders. Results: A diagnosis of thalassemia trait and/or a hemoglobinopathy was established in 93 of 137 (67.9%) patients. Amongst these, beta-thalassemia trait topped the list with 69 cases (74.1%), followed by hereditary persistence of fetal hemoglobin with 5 cases (5.5%), Hemoglobin E disease with 4 cases (4.3%), and ?/beta-thalassemia with 2 cases (2.1%). Compound heterozygous conditions with 1 or more hemoglobinopathies and/or thalassemias were diagnosed in 13 cases (14.0%). Abnormal hemoglobins in the compound heterozygosity group included C, S, HPFH, and 2 unknowns. Conclusion: Hemoglobin variant analysis provided a very high positive yield in determining the etiology of microcytic erythrocytosis. PMID- 29346669 TI - Regulation of mitotic recombination between DNA repeats in centromeres. PMID- 29346668 TI - RAD51 and RTEL1 compensate telomere loss in the absence of telomerase. AB - Replicative erosion of telomeres is naturally compensated by telomerase and studies in yeast and vertebrates show that homologous recombination can compensate for the absence of telomerase. We show that RAD51 protein, which catalyzes the key strand-invasion step of homologous recombination, is localized at Arabidopsis telomeres in absence of telomerase. Blocking the strand-transfer activity of the RAD51 in telomerase mutant plants results in a strikingly earlier onset of developmental defects, accompanied by increased numbers of end-to-end chromosome fusions. Imposing replication stress through knockout of RNaseH2 increases numbers of chromosome fusions and reduces the survival of these plants deficient for telomerase and homologous recombination. This finding suggests that RAD51-dependent homologous recombination acts as an essential backup to the telomerase for compensation of replicative telomere loss to ensure genome stability. Furthermore, we show that this positive role of RAD51 in telomere stability is dependent on the RTEL1 helicase. We propose that a RAD51 dependent break-induced replication process is activated in cells lacking telomerase activity, with RTEL1 responsible for D-loop dissolution after telomere replication. PMID- 29346670 TI - SCOPING ANALYSIS OF MATERIAL ACTIVATION AT A BORON NEUTRON CAPTURE THERAPY FACILITY BASED ON THE Be(p,xn) REACTION WITH 30 MeV PROTONS. AB - Material activation assessment of a proposed accelerator-based boron neutron capture therapy facility was performed using the FLUKA Monte Carlo code to quantify the magnitude of the problem in terms of the isotope inventories, induced activities, and residual dose rates. Two simplified operation scenarios were considered: a 30-min proton bombardment to simulate a typical session of patient treatment and a long-term 1 year continuous operation to estimate the accumulation of long-lived radionuclides. Following the generation and transport of decay radiation, the space- and time-dependent inventories of induced radionuclides in materials and residual dose rates after shutdown were obtained. The predicted results were compared with the corresponding regulatory limits. Moreover, the effectiveness of various measures to reduce the impact of material activation was demonstrated. PMID- 29346671 TI - Hematological Analysis in Thai Samples With Deletional and Nondeletional HbH Diseases. AB - Objectives: To compare hematological parameters between deletional and nondeletional HbH diseases, and to investigate the correlation between HbH levels and hematological parameters within these 2 groups. Methods: Samples of 43 deletional HbH diseases, which included 39 --SEA/-alpha3.7, 4 - -SEA/-alpha4.2, and 22 nondeletional HbH diseases (- -SEA/alphacsalpha), were used in this study. Correlations between HbH levels and hematological parameters within these 2 groups were analyzed. Results: The deletional HbH disease had higher levels of RBC counts, total Hb, pack cell volume (PCV), mean corpuscular Hb (MCH), mean corpuscular Hb concentration (MCHC), HbA, and HbA2 than did the nondeletional HbH disease. A negative correlation between HbH and RBC counts was detected in the group of deletional HbH disease, while a positive correlation between HbH and RBC counts, total Hb, and PCV was found in the group of nondeletional HbH disease. Conclusions: These results reflected that samples with nondeletional HbH showed more anemic features than those with the deletional HbH. PMID- 29346672 TI - Learning to Live With Schizoaffective Disorder: A Transformative Journey Toward Recovery. PMID- 29346673 TI - Commentary on "The Potential of Cannabidiol Treatment for Cannabis Users With Recent-Onset Psychosis". PMID- 29346674 TI - Integrating Research Techniques to Improve Quality and Safety in the Preanalytical Phase. AB - Background: Reducing errors in the preanalytical phase is difficult, which suggests the issue may be multidimensional. As such, qualitative research may be truly innovative in this context. Method: We carried out a descriptive study using a qualitative method incorporating 4 focus groups. Data analysis followed the principles of Grounded Theory. Results: We queried in each of the 4 focus groups collectively to identify weaknesses in the system. Those weaknesses that were most cited were logistics, coupled with uneven compliance with regulations. Conclusion: All 4 focus groups mapped out directives for future work, so that regulatory aspects, process management, communication and resources could be identified as key areas where error reduction is critical. PMID- 29346675 TI - In search of the best xenogeneic material for a paediatric conduit: an experimental study. AB - OBJECTIVES: The development of calcification-resistant bioprosthetic materials is a very important challenge for paediatric surgery. The subcutaneous implantation in rats is the well-known first-stage model for this kind of research. Using this model, we aimed to compare calcification of the porcine aortic wall and bovine pericardium and jugular vein wall cross-linked with glutaraldehyde (GA) and ethylene glycol diglycidyl ether (DE). We also determined the efficacy of DE preserved tissue modification with 2-(2-carboxyethylamino)ethylidene-1,1 bisphosphonic acid (CEABA). METHODS: Three groups of each biomaterial were evaluated: GA-treated, DE-treated and DE + CEABA-treated. The microstructure of non-implanted biomaterials was assessed by light microscopy after Picro Mallory staining; the phosphorus content of the DE and DE + CEABA samples was assessed by atomic emission spectrometry. Samples were implanted subcutaneously into young rats for 10 and 60 days. The explant end-point included quantitative calcification assessment by atomic absorption spectrophotometry and light microscopy examination after von Kossa staining. RESULTS: All GA-treated biomaterials had a high calcium-binding capacity (>100 MUg/mg dry tissue). DE preservation decreased the vein wall and pericardium calcium content by 4- and 40 fold, respectively, but was ineffective for the aortic wall. The calculated CEABA content was almost equal in the vein wall and pericardium (17.7 and 18.5 MUM/g) and slightly less in the aortic wall (15 MUM/g) (P = 0.011). CEABA effectively reduced mineralization in the DE aortic wall and DE pericardium to 10.1 (7.8 21.1) and 0.95 (0.57-1.38) MUg/mg but had no effect in the DE vein wall. Mineralization in the GA- and DE-treated aortic and vein walls was predominantly associated with elastin. CEABA modification decreased elastin calcification but did not block it completely. CONCLUSIONS: Each xenogeneic material requires individual anticalcification strategy. DE + CEABA pretreatment demonstrates a high mineralization-blocking efficacy for the bovine pericardium and should be employed to further develop the paediatric pericardial conduit. Aortic wall calcification cannot be blocked completely using this strategy. PMID- 29346676 TI - Familial hypercholesterolemia: xanthelasma, corneal arcus and tendon xanthomas, only in severe forms. PMID- 29346677 TI - Anatomical explanations for acute depressions in radial pattern of axial sap flow in two diffuse-porous mangrove species: implications for water use. AB - Mangrove species have developed uniquely efficient water-use strategies in order to survive in highly saline and anaerobic environments. Herein, we estimated the stand water use of two diffuse-porous mangrove species of the same age, Sonneratia apetala Buch. Ham and Sonneratia caseolaris (L.) Engl., growing in a similar intertidal environment. Specifically, to investigate the radial patterns of axial sap flow density (Js) and understand the anatomical traits associated with them, we measured axial sap flow density in situ together with micromorphological observations. A significant decrease of Js was observed for both species. This result was accompanied by the corresponding observations of wood structure and blockages in xylem sapwood, which appeared to influence and, hence, explained the acute radial reductions of axial sap flow in the stems of both species. However, higher radial resistance in sapwood of S. caseolaris caused a steeper decline of Js radially when compared with S. apetala, thus explaining the latter's more efficient use of water. Without first considering acute reductions in Js into the sapwood from the outer bark, a total of ~55% and 51% of water use would have been overestimated, corresponding to average discrepancies in stand water use of 5.6 mm day-1 for S. apetala trees and 2.5 mm day-1 for S. caseolaris trees. This suggests that measuring radial pattern of Js is a critical factor in determining whole-tree or stand water use. PMID- 29346678 TI - Case study of an adaptation and implementation of a Diabetes Prevention Program for individuals with serious mental illness. AB - The Diabetes Prevention Program (DPP) is an evidence-based lifestyle intervention developed to decrease the risk for type 2 diabetes and promote weight loss in individuals at risk for diabetes. Individuals with serious mental illness have a greater risk for developing diabetes compared with the general population. In this article, the authors provide a detailed description of the adaptation process of the DPP for individuals with serious mental illness (DPP-SMI). The adaptation process was based on a cultural adaptation framework for modifying evidence-based interventions. To assess the effectiveness of the DPP-SMI, 11 individuals from a community mental health residential agency completed a 22 session pilot study of the adapted program and provided physiological measures before and after the intervention. As primary outcomes, participants were expected to report decreased body weight and increased physical activity per week. Completers had an average weight loss of 19 lbs (8%) and their physical activity increased from 161 to 405 min per week. These preliminary results together with participants' feedback informed further refinement of the DPP-SMI. This case study supports that individuals with serious mental illness can benefit from the DPP-SMI, which is tailored to meet the unique needs of this population group. PMID- 29346679 TI - Risk stratification in Takotsubo syndrome: a role of mitral annular plane systolic excursion. AB - Aim: Takotsubo syndrome (TTS) patients have a higher mortality rate than the general population. Our study was conducted to determine the short- and long-term outcome of TTS patients associated with a significantly compromised mitral annular plane systolic excursion (MAPSE) on hospital admission. Methods and results: Our institutional database constituted a collective of 53 patients diagnosed with TTS between 2003 and 2016. The patients were classified into two groups based on the MAPSE, with those presenting with an MAPSE <1 cm on admission categorized into one group (n = 20, 38%) and those presenting with MAPSE >=1 cm (n = 33, 62%) categorized into another group. Preliminary results indicated that patients with an MAPSE < 1 cm had a greater risk of developing thromboembolic events. The long-term mortality was significantly higher in TTS patients with an MAPSE < 1 cm. In the multivariate Cox regression analysis, cardiogenic shock (hazard ratio 3.5; 95% confidence interval: 1.2-10.7; P = 0.02) and MAPSE < 1 cm (hazard ratio 5.1; 95% confidence interval: 1.3-19.2; P = 0.01) figured as independent predictors of the mortality. Conclusion: Although the short-term mortality rates among TTS patients diagnosed with a reduced MAPSE on admission were as similar as without reduced MAPSE, the long-term mortality rates among TTS patients diagnosed with a reduced MAPSE on admission were significantly higher. There is an urgent need for randomized trials, which could help define uniform clinical management strategies for high-risk TTS patients. PMID- 29346680 TI - Conjunctival petechiae and infective endocarditis. PMID- 29346681 TI - Optimal number and sizes of the doses in fractionated radiotherapy according to the LQ model. AB - We address a non-linear programming problem to find the optimal scheme of dose fractionation in cancer radiotherapy. Using the LQ model to represent the response to radiation of tumour and normal tissues, we formulate a constrained non-linear optimization problem in terms of the variables number and sizes of the dose fractions. Quadratic constraints are imposed to guarantee that the damages to the early and late responding normal tissues do not exceed assigned tolerable levels. Linear constraints are set to limit the size of the daily doses. The optimal solutions are found in two steps: i) analytical determination of the optimal sizes of the fractional doses for a fixed, but arbitrary number of fractions n; ii) numerical simulation of a sequence of the previous optima for n increasing, and for specific tumour classes. We prove the existence of a finite upper bound for the optimal number of fractions. So, the optimum with respect to n is found by means of a finite number of comparisons amongst the optimal values of the objective function at the first step. In the numerical simulations, the radiosensitivity and repopulation parameters of the normal tissue are fixed, while we investigate the behaviour of the optimal solution for wide variations of the tumour parameters, relating our optima to real clinical protocols. We recognize that the optimality of hypo or equi-fractionated treatment schemes depends on the value of the tumour radiosensitivity ratio compared to the normal tissue radiosensitivity. Fast growing, radioresistant tumours may require particularly short optimal treatments. PMID- 29346683 TI - Strigolactones: mediators of osmotic stress responses with a potential for agrochemical manipulation of crop resilience. AB - After quickly touching upon general aspects of strigolactone biology and functions, including structure, synthesis, and perception, this review focuses on the role and regulation of the strigolactone pathway during osmotic stress, in light of the most recent research developments. We discuss available data on organ-specific dynamics of strigolactone synthesis and interaction with abscisic acid in the acclimatization response, with emphasis on the ecophysiological implications of the effects on the stomatal closure process. We highlight the importance of considering roots and shoots separately as well as combined versus individual stress treatments; and of performing reciprocal grafting experiments to work out organ contributions and long-distance signalling events and components under more realistic conditions. Finally, we elaborate on the question of if and how synthetic or natural strigolactones, alone or in combination with crop management strategies such as grafting, hold potential to maximize crop resilience to abiotic stresses. PMID- 29346682 TI - Receptor Usage of a Novel Bat Lineage C Betacoronavirus Reveals Evolution of Middle East Respiratory Syndrome-Related Coronavirus Spike Proteins for Human Dipeptidyl Peptidase 4 Binding. AB - Although bats are known to harbor Middle East Respiratory Syndrome coronavirus (MERS-CoV)-related viruses, the role of bats in the evolutionary origin and pathway remains obscure. We identified a novel MERS-CoV-related betacoronavirus, Hp-BatCoV HKU25, from Chinese pipistrelle bats. Although it is closely related to MERS-CoV in most genome regions, its spike protein occupies a phylogenetic position between that of Ty-BatCoV HKU4 and Pi-BatCoV HKU5. Because Ty-BatCoV HKU4 but not Pi-BatCoV HKU5 can use the MERS-CoV receptor human dipeptidyl peptidase 4 (hDPP4) for cell entry, we tested the ability of Hp-BatCoV HKU25 to bind and use hDPP4. The HKU25-receptor binding domain (RBD) can bind to hDPP4 protein and hDPP4-expressing cells, but it does so with lower efficiency than that of MERS-RBD. Pseudovirus assays showed that HKU25-spike can use hDPP4 for entry to hDPP4-expressing cells, although with lower efficiency than that of MERS spike and HKU4-spike. Our findings support a bat origin of MERS-CoV and suggest that bat CoV spike proteins may have evolved in a stepwise manner for binding to hDPP4. PMID- 29346684 TI - Comparing Cortical Trajectory Transforaminal Lumbar Interbody Fusions Against Pedicle Trajectory Transforaminal Lumbar Interbody Fusions and Posterolateral Fusions: A Retrospective Cohort Study of 90-day Outcomes. AB - BACKGROUND: The cortical screw (CS) trajectory for pedicle screw placement is believed to require a smaller incision and less tissue dissection resulting in lower blood loss and faster healing; however, this has not yet been confirmed in clinical studies. OBJECTIVE: To compare CS transforaminal lumbar interbody fusions (TLIF), traditional pedicle screw (TPS) trajectory TLIFs, and posterolateral fusion (PLF) without interbody for differences in operative characteristics and complications. METHODS: We performed a retrospective cohort study (CS, TPS, and PLF) looking at patients who underwent lumbar fusion with 1 or 2 levels. Extracted data included demographics, comorbidities, estimated blood loss, transfusions, operative time, length of stay, discharge disposition (home vs rehabilitation), and complications within the perioperative, 30- and 90-d periods. RESULTS: A total of 118 patients (45 CS, 35 TPS, and 38 PLF) were included with average age 62 and 90-d follow-up for 106 (90%) patients. CS had less average blood loss (231 ml) than either TPS (424, P = .0023) or PLF (400, P = .0070). CS had far fewer transfusions than either TPS or PLF (P < .0001). TPS had longer average operating room (OR) time (262 min) than either CS (214, P = .0075) or PLF (211, P = .0060). CS had the shortest length of postoperative stay (4.3 days) which was significantly shorter than PLF (6.2, P = .0138) but not different than TPS (4.8). There were no differences in discharge disposition, complications, perioperative, 30-d, 90-d, durotomy, or wound healing issues. CONCLUSION: The CS trajectory is associated with less blood loss, fewer transfusions, reduced OR time, and shorter length of stay, with no difference in complications. PMID- 29346685 TI - Metabolic Flux Engineering of Cembratrien-ol Production in Both the Glandular Trichome and Leaf Mesophyll in Nicotiana tabacum. AB - Cembratrien-ol synthase (CBTS) catalyzes the first step in cembranoid biosynthesis, producing cembratrien-ols in plant trichomes. In our previous study, microarray transcriptomes between leaves with trichomes and leaves without trichomes showed that an NtCBTS2 gene was expressed exclusively and abundantly in trichomes. Here, two NtCBTS2 isogenes (NtCBTS2a and NtCBTS2b), derived from a diploid genome donor, Nicotiana sylvestris, were identified from N. tabacum. Both genes were expressed primarily in trichomes, with relatively decreased transcription in flowers and stems, and faint expression in roots, and no expression was detected in leaves lacking trichomes. To demonstrate the feasibility of producing natural product cembratrien-ols in tobacco mesophylls, the mesophylls of 35S:NtCBTS2b transgenic tobacco plants were used in the analysis, suggesting that constitutive expression of NtCBTS2b led to the cembratrien-ol production in mesophylls. Overexpression of NtCBTS2b using either Cauliflower mosaic virus (CaMV) 35S or trichome-specific Cyt P450 oxygenase (CYP) promoters greatly increased aphid resistance by promoting the accumulation of CBT ols, increased the secretory cell growth in glandular trichomes and increased the levels of various physiological measures, including sugar esters, gibberellins, and cembranoid production. Meanwhile, specifically overexpressing NtCBTS2b in glandular trichomes could most efficiently promote aphid resistance in tobacco plants. Notably, our results indicate the feasibility of utilizing bio engineering to produce large amounts of CBT-ols, and modify significantly the composition of naturally produced CBT-ols and CBT-diols, thereby promoting aphid resistance in plants. PMID- 29346689 TI - Initial Development and Validation of a Family Medicine Attitudes Questionnaire. AB - BACKGROUND AND OBJECTIVES: Although many curricular and policy interventions are designed to influence students' attitudes toward family medicine, assessment of these interventions is limited by lack of a comprehensive, validated measure of students' attitudes. We sought to develop and validate a questionnaire that effectively assesses medical student attitudes toward family medicine. METHODS: A 31-item questionnaire was assessed for internal, external, and content validity. The questionnaire was offered to fourth-year students at two Midwestern medical schools. Internal validity was assessed using data reduction and iterative factor analyses. External validity was assessed by correlating scores with intention to match in family medicine. Content validity was assessed by directly observing students as they completed the questionnaire and qualitatively evaluating student comments. RESULTS: Of 858 students invited, 426 (49.7%) provided usable questionnaire data. After removal of questions with lower interitem correlations and simplification of subscales, the modified questionnaire achieved acceptable subscale internal consistency and a Cronbach alpha of 0.798. The overall instrument summative score correlated with family medicine career choice (P<0.001). Most subscales and individual items also correlated with family medicine choice. Ten students were directly observed, using an iterative process, and modifications were made based on student understanding. CONCLUSIONS: Development of a validated questionnaire assessing medical student attitudes toward family medicine is feasible. With further refinement, the Family Medicine Attitudes Questionnaire may be useful in evaluating the impact of curricular interventions on students' perceptions of family medicine, contributing to an evidence-based approach to recruitment of students to the specialty. PMID- 29346690 TI - Using Standardized Patient Assessments to Evaluate a Health Literacy Curriculum. AB - BACKGROUND AND OBJECTIVES: Patients' health literacy is a growing concern as patients are expected to perform more self-care. While many US schools implement health literacy in their curricula, time spent on the topic ranges from 0 to 8 hours and is largely didactic. Evaluation of health literacy skills is not well defined. The effectiveness of a health literacy curriculum for third-year medical students was evaluated by two standardized patients assessments (SPAs). METHODS: All third-year medical students complete a required 4-week clerkship in family medicine. After participating in seminars on patient-centered communication, health literacy, mindfulness, implicit bias, and chronic disease management, students complete SPA-1. Students also work in two team-based teaching clinics with chronic disease patients with limited health literacy and receive faculty feedback. At week 4, students complete SPA-2. Six raters evaluated all video recorded SPA performances using the Common Ground validated instrument and a tailored health literacy skills checklist. RESULTS: Using SPAs and reliably trained nonclinical raters is an effective method for training and evaluating students about health literacy. Two classes (2013 and 2015) had significant improvement in Common Ground core skills from SPA-1 to SPA-2. For all classes, a small but significant increase in student use of health literacy checklist was seen from SPA-1 to SPA-2. CONCLUSIONS: Didactic sessions prepare students to demonstrate competence on Common Ground and health literacy skills. Improvements in students' health literacy and communication skills are feasible in a 4-week clerkship utilizing the curriculum and evaluation process described. PMID- 29346691 TI - The Impact of Near-Peer Teaching on Medical Students' Transition to Clerkships. AB - BACKGROUND AND OBJECTIVES: The transition to clerkships is one of the most challenging times during medical school. To help students better cope, many schools have established transition-to-clerkship curricula. Such curricula may optimally prepare students through increasing their self-efficacy and response efficacy. We hypothesized that a small-group, near-peer-led format would be ideally suited to help students achieve these outcomes. METHODS: During process improvement for a transition-to-clerkship curriculum, we conducted an informal focus group and subsequent survey of postclerkship students to guide curricular innovation, including incorporation of third- and fourth-year students as near peer instructors in a seminar format. Seminars included three sequential small group discussions focused on discrete topic areas and concluded with a large group session highlighting salient discussion points. To evaluate the impact of this educational strategy, near-peer learners were surveyed before and after the seminars. RESULTS: Junior student participants reported feeling more prepared to integrate into the health care team, develop a clerkship study plan, and access applicable, valuable study materials, both immediately following the seminars and 6 months later, demonstrating increased self-efficacy. These students placed equal or greater value on these topics as compared to students in previous year groups, demonstrating similar response efficacy. CONCLUSIONS: This study demonstrated an increase in student self-efficacy that persisted 6 months postintervention, in addition to similar response efficacy. Future research could be directed toward: (1) investigating whether improvements in self-efficacy among students transitioning to clerkships are associated with improved clerkship performance and (2) studying outcomes for near-peer teachers. PMID- 29346692 TI - US Federal Policies Should Better Support the Primary Care Physician Workforce. PMID- 29346693 TI - Clinical Experience in Medical School. PMID- 29346694 TI - Vocation, Autonomy, Agency, and Meaning. PMID- 29346695 TI - Symbols and Rituals of Healing. PMID- 29346696 TI - An Unlikely Job Search Leads Home. PMID- 29346697 TI - Surviving End-of-Life Care. PMID- 29346698 TI - Procedural Knowledge and Skills of Residents Entering Canadian Family Medicine Programs in Alberta. AB - BACKGROUND AND OBJECTIVES: Incoming family medicine (FM) residents start residency with different levels of procedural training. Understanding their baseline skill level is necessary to plan the educational experiences and teaching methods that will provide the desired knowledge, skills, and attitudes related to performing medical procedures. METHODS: A survey of 69 procedures based on the core list issued by the College of Family Physicians of Canada was administered to incoming residents in Alberta (Calgary and Edmonton FM programs). The survey intended to identify the levels of training and confidence acquired for each listed procedure before residency, and plans to perform each of the procedures in future independent practice. RESULTS: A total of 146 residents from both programs responded to the survey (82% response rate). Of the 69 procedures evaluated, 15 (21.7%) had been previously performed at least five times by 50% or more residents. Only five procedures were rated by 80% or more of the residents as being able to perform independently or to teach to others: simple suture, infiltration of local anesthetic, intramuscular injection, cryotherapy of skin lesions and Pap smear. More male residents than female residents felt confident in performing 10 procedures, while female residents were more confident in performing Pap smears. Rural residents felt more confident to perform 22 procedures than their urban colleagues. CONCLUSIONS: This information demonstrates limited prior training in procedures among entering residents, and provides guidance to FM programs to develop teaching interventions to achieve competence in those procedural skills seen as necessary for family physicians. PMID- 29346699 TI - Teaching Chronic Pain in the Family Medicine Residency. AB - BACKGROUND AND OBJECTIVES: Chronic pain is a significant condition affecting many Americans. Primary care physicians play an important role in chronic pain management, but many residents and physicians feel poorly prepared to manage it. METHODS: Data were collected as part of the 2016 Council of Academic Family Medicine Educational Research Alliance (CERA) Program Director Survey, which was sent electronically to 484 program directors in the United States. The authors sought to determine whether residency directors' attitudes about treating chronic pain were associated with the amount of time devoted to teaching family medicine residents about chronic pain assessment, therapy (use of opioids, use adjuvant pain medications, use of other nonopioids, use of nonpharmacological treatments), and risk management (risk assessment, use of pain management contracts, informed consent when prescribing opioids, and urine drug monitoring). Attitudes were assessed by asking whether: (1) chronic pain is best managed by a primary care physician (PCP); (2) prescribing opioid medications is time consuming; (3) prescribing opioids is high-risk; (4) prescribing opioids contributes to opioid misuse; and (4) effective nonopioid treatments exist. An additional question assessed confidence in treating chronic pain. RESULTS: The response rate was 53%. The average family medicine residency devotes about 33 hours to education about pain management topics including 5.4 hours on chronic pain assessment, 16.2 hours on therapy, and 11.4 hours on risk assessment. Residency directors' belief that there are effective nonopioid treatments for chronic pain was the only attitude item that was associated with teaching about chronic pain. CONCLUSIONS: Residency directors' attitudes do not predict the time devoted to teaching chronic pain in family medicine residencies. PMID- 29346700 TI - Competence Revisited in a Rural Context. AB - BACKGROUND AND OBJECTIVES: General competencies developed in undergraduate and graduate medical education are sometimes promoted as applicable in any practice context. However, rural practice presents challenges and opportunities that may require unique training. The objectives of this national survey of both undergraduate and graduate medical educators and practicing physicians were to further develop a previously published list of competency domains for working in rural communities and to assess their relative importance in education and practice. METHODS: Using six rural competency domains first refined with a national group at the Society of Teachers of Family Medicine Annual Meeting in Baltimore in 2008, the authors employed a snowball strategy to survey medical educators and physicians regarding the importance and relevance of this list and to solicit additional domains and competencies. RESULTS: All six domains were considered important, with average responses for each domain ranging from 4.16 to 4.78 on a 5-point Likert scale (1-not important; 5-extremely important). Unique relevance to rural practice was more varied, with average responses for domains ranging from 2.36 to 3.6 (1-not at all unique; 5-extremely unique). Analysis of free text responses identified two important new domains-Comprehensiveness and Agency/Courage-and provided clarification of some competencies within existing domains. CONCLUSIONS: This study validates and further elaborates dimensions of competence believed to be important in rural practice. The authors propose these domains as a common language and framework for addressing the unique challenges and opportunities that training and practicing in a rural setting present. PMID- 29346701 TI - Identifying Prevalence and Characteristics of Behavioral Health Education in Family Medicine Clerkships: A CERA Study. AB - BACKGROUND AND OBJECTIVES: Many patients with behavioral health disorders do not seek or receive adequate care for their conditions. Among those that do, most will receive care in a primary care setting. To best meet this need, clinicians will need to demonstrate proficiency of behavioral health skills and evidence based practices. We sought to explore the degree to which these skills are being taught in family medicine clerkships. METHODS: The Council of Academic Family Medicine's (CAFM) Educational Research Alliance (CERA) 2016 survey of clerkship directors (CDs) was sent to 141 CDs at US and Canadian medical schools with a required family medicine run course. CDs were asked about the inclusion of behavioral health topics, tools, and techniques in the clerkship, as well as rating the importance of these items. RESULTS: Eighty-six percent of CDs completed the survey. Mood disorders (81.4%) were most frequently taught, followed by anxiety disorders (77.8%), substance use disorders (74.4%), and impulse control disorders (39.1%). Screening tools and behavioral health counseling skills were less commonly taught. CONCLUSIONS: Many behavioral health topics are not taught universally to all family medicine clerkship students. Gaps exist between what is included in current curriculum and what is recommended by the National Clerkship Curriculum for family medicine. These gaps may represent challenges for improving the care for patients with behavioral health disorders. PMID- 29346702 TI - And an Equitable New Year. PMID- 29346703 TI - Pursuing Personal Passion: Learner-Centered Research Mentoring. AB - New researchers often face difficulty finding and focusing research questions. I describe a new tool for research mentoring, the Pursuing Personal Passion (P3) interview, and a systematic approach to help learners organize their curiosity and develop researchable questions aligned with their personal and professional priorities. The learner-centered P3 research interview parallels the patient centered clinical interview. This paper reviews experience with 27 research mentees over the years 2009 to 2016, using the P3 approach to identify their initial research topics, classify their underlying passions and track the evolution into their final research questions. These researchers usually identified one of three personal passions that provided lenses to focus their research: problem, person, or process. Initial research topics focused on: problem (24%, 6), person (48%, 12) and process (28%, 7). Final research questions evolved into: problem (20%, 5), person (32%, 8) and process (48%, 12). Identification of the underlying passion can lead researchers who start with one general topic to develop it into very different research questions. Using this P3 approach, mentors can help new researchers focus their interests into researchable questions, successful studies, and organized programs of scholarship. PMID- 29346704 TI - Usefulness of live/real time three/four-dimensional transesophageal echocardiography in the percutaneous closure of an iatrogenic aorto-right ventricular fistula. AB - The development of an aorto-right ventricular fistula is a rare complication of cardiac surgery. The most common treatment is surgical closure of the fistula, but percutaneous closure of the fistula has become an attractive alternative option. We present a case of successful utilization of live/real time three/four dimensional transoesophageal echocardiography (3/4DTEE) to select the correct device size for percutaneous closure of an adult patient presenting with an aorto right ventricular (AO-RV) fistula following aortic valve replacement. To the best of our knowledge, this is the first case in which 3/4DTEE was used to select the device size and guide percutaneous closure of an iatrogenic AO-RV fistula. PMID- 29346705 TI - Effect of dys-1 mutation on gene expression profile in space-flown Caenorhabditis elegans. AB - INTRODUCTION: Dystrophin-like dys-1 gene expression increases in the body wall muscles of Caenorhabditis elegans after spaceflight (SF). Here we used a dys 1(cx18) mutant to analyze the molecular adaptive responses of C. elegans to SF. METHODS: DNA microarrays were performed to identify differentially expressed genes between wild-type (WT) and dys-1 mutant worms after SF. We performed Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analyses, predicted human diseases, and screened out key genes for human muscle diseases with NextBio. RESULTS: Gene expression was less affected by SF in the dys-1 mutant than in the WT worms. The dys-1 mutation influenced neuromuscular gene expression (neuropeptide genes, muscle-related genes, and dystrophin-related genes) under SF conditions, among which 15 genes were specifically regulated by dys-1. NextBio analysis predicted that cdka-1, lev-11, unc-27, and unc-94 genes might play critical roles in muscle atrophy. DISCUSSION: dys-1 Potentially regulates the neuromuscular system in space. Muscle Nerve, 2018. PMID- 29346706 TI - Anti-3-hydroxy-3-methylglutaryl-coenzyme a reductase autoantibody-positive necrotizing autoimmune myopathy with dermatomyositis-like eruption. PMID- 29346707 TI - Tuning the High-Temperature Wetting Behavior of Metals toward Ultrafine Nanoparticles. AB - The interaction between metal nanoparticles (NPs) and their substrate plays a critical role in determining the particle morphology, distribution, and properties. The pronounced impact of a thin oxide coating on the dispersion of metal NPs on a carbon substrate is presented. Al2 O3 -supported Pt NPs are compared to the direct synthesis of Pt NPs on bare carbon surfaces. Pt NPs with an average size of about 2 nm and a size distribution ranging between 0.5 nm and 4.0 nm are synthesized on the Al2 O3 coated carbon nanofiber, a significant improvement compared to those directly synthesized on a bare carbon surface. First-principles modeling verifies the stronger adsorption of Pt clusters on Al2 O3 than on carbon, which attributes the formation of ultrafine Pt NPs. This strategy paves the way towards the rational design of NPs with enhanced dispersion and controlled particle size, which are promising in energy storage and electrocatalysis. PMID- 29346708 TI - Role of comprehension on performance at higher levels of Bloom's taxonomy: Findings from assessments of healthcare professional students. AB - The first four levels of Bloom's taxonomy were used to create quiz questions designed to assess student learning of the gross anatomy, histology, and physiology of the gastrointestinal (GI) system. Information on GI histology and physiology was presented to separate samples of medical, dental, and podiatry students in computer based tutorials where the information from the two disciplines was presented either separately or in an integrated fashion. All students were taught GI gross anatomy prior to this study by course faculty as part of the required curriculum of their respective program. Student responses to the quiz questions were analyzed to assess both the validity of Bloom's cumulative hierarchy and the effectiveness of an integrated curriculum. No statistically significant differences were found between quiz scores from students who received the integrated tutorial and from those who received the separate tutorials. Multiple regression analyses provided partial support for a cumulative hierarchy where scores on the lower levels of Bloom's taxonomy predicted scores on higher levels. Notably, in the majority of regression analyses, the comprehension score was the key foundational predictor for application and analysis scores. This study supports the suggestion that educators increase the number of comprehension level questions, even at the expense of knowledge level questions, in course assessments both to evaluate lower order cognitive skills and also as a predictor of success on questions requiring application and analysis levels of the higher order cognitive skills of Bloom's taxonomy. Anat Sci Educ 11: 433-444. (c) 2018 American Association of Anatomists. PMID- 29346709 TI - Rating the quality of a body of evidence on the effectiveness of health and social interventions: A systematic review and mapping of evidence domains. AB - INTRODUCTION: Rating the quality of a body of evidence is an increasingly common component of research syntheses on intervention effectiveness. This study sought to identify and examine existing systems for rating the quality of a body of evidence on the effectiveness of health and social interventions. METHODS: We used a multicomponent search strategy to search for full-length reports of systems for rating the quality of a body of evidence on the effectiveness of health and social interventions published in English from 1995 onward. Two independent reviewers extracted data from each eligible system on the evidence domains included, as well as the development and dissemination processes for each system. RESULTS: Seventeen systems met our eligibility criteria. Across systems, we identified 13 discrete evidence domains: study design, study execution, consistency, measures of precision, directness, publication bias, magnitude of effect, dose-response, plausible confounding, analogy, robustness, applicability, and coherence. We found little reporting of rigorous procedures in the development and dissemination of evidence rating systems. CONCLUSION: We identified 17 systems for rating the quality of a body of evidence on intervention effectiveness across health and social policy. Existing systems vary greatly in the domains they include and how they operationalize domains, and most have important limitations in their development and dissemination. The construct of the quality of the body of evidence was defined in a few systems largely extending the Grading of Recommendations Assessment, Development, and Evaluation approach. Grading of Recommendations Assessment, Development, and Evaluation was found to be unique in its comprehensive guidance, rigorous development, and dissemination strategy. PMID- 29346710 TI - An extensive caseous calcification of the mitral annulus complicated with severe mitral regurgitation. AB - Caseous calcification of the mitral annulus (CCMA) is considered a rare variant of mitral annular calcification (MAC) due to caseous transformation of the inner material and prevalence of CCMA, about 0.63% of all MAC cases and 0.06%-0.07% of the population. The precise pathophysiology of CCMA is still unknown. It is a chronic degenerative disorder common in the elderly, particularly in women. Caseous calcification of the mitral annulus (CCMA) is a soft peri-annular extensive calcification, resembling cardiac tumors, abscesses, vegetation, or calcified thrombus, which is composed of an admixture of calcium, fatty acids, and cholesterol with a toothpaste-like texture. In the characteristic appearance on echocardiography, the calcification is a round, large, soft mass with a central echo dense area, typically located at the basal area of the posterior mitral valve. It usually carries a benign prognosis but rarely may be complicated with mitral valve dysfunction (valve stenosis/mitral regurgitation) or systemic embolization. The current data suggest conservative medical therapy and clinical follow-up for management of CCMA unless there is a need of cardiac surgery for severe mitral stenosis and/or regurgitation. We present a case, complicated with severe mitral regurgitation, and need surgical resection of the CCMA because of the CCMA-induced symptomatic severe mitral regurgitation despite optimal medical therapy. Macroscopic and microscopic examination of caseous material also demonstrated the characteristic appearance of CCMA. PMID- 29346711 TI - Early assessment of post-surgical outcomes with pre-pectoral breast reconstruction: A literature review and meta-analysis. AB - BACKGROUND: Pre-pectoral breast reconstruction is an emerging surgical approach. This study provides an early assessment of outcomes with the technique. METHODS: A comprehensive literature review was performed through searches of PubMed(r) /MEDLINE(r) to identify studies on pre-pectoral reconstruction. Patient characteristics and outcomes were extracted from studies and pooled. Linear relationships between complication rates and patient characteristics with pre pectoral reconstruction were analyzed. A meta-analysis compared complication rates between pre-pectoral and dual-plane reconstruction. RESULTS: Fourteen studies (406 women/654 breasts) were included. The most common complications with pre-pectoral reconstruction were flap necrosis (7.8%), seroma (6.7%), capsular contracture (5.8%), and explantation (4.6%). No hyperanimation was reported. Significant correlation between previous radiation and flap necrosis, post operative chemotherapy and infection, hypertension and flap necrosis, diabetes and dehiscence, and smoking and explantation were found. A meta-analysis of four studies comparing pre-pectoral (135 women/219 breasts) and dual-plane (230/408) reconstruction found no significant difference for likelihood of infection (odds ratio, 0.46; 95% confidence interval, 0.16-1.30), explantation (0.83; 0.29-2.38), necrosis (1.61; 0.77-3.36), seroma (1.88; 0.71-5.02), dehiscence (1.84; 0.68 4.95), or capsular contracture (0.14; 0.02-1.14). CONCLUSIONS: Complication rates are comparable following pre-pectoral and dual-plane reconstruction, indicating the pre-pectoral technique may be a feasible option for appropriate patients. PMID- 29346712 TI - Synergetic Effects of Prenatal and Postnatal High Sucrose Intake on Glucose Tolerance and Hepatic Insulin Resistance in Rat Offspring. AB - SCOPE: High sucrose intake during pregnancy is linked to type 2 diabetes mellitus and altered insulin resistance. METHODS AND RESULTS: This study attempts to ascertain whether prenatal high sucrose intake (20% sucrose) alleviates the detrimental effects of high postnatal sugar consumption in the offspring, and the molecular mechanisms are investigated using a rat model. High prenatal sucrose exposure increases the body weight of the offspring at 1-3 weeks of age. Exposure to both prenatal and postnatal high sucrose increases glucose tolerance in the 4 month-old adult offspring compared with offspring receiving other treatments. Postnatal high sucrose exposure suppresses food intake but increases the total daily caloric and fluid intake. Both fasting blood glucose and plasma triglyceride levels are increased, but the fasting insulin level is unaffected. Prenatal high sucrose intake enlarges pancreatic islet area; however, prenatal plus-postnatal high sucrose exposure induces smaller pancreatic islets. IRS 1(S612) protein phosphorylation is significantly increased, and the GSK-3beta (S9) phosphorylation level is reduced. CONCLUSION: Both prenatal and prenatal plus-postnatal high sucrose exposure substantially affect biological functions related to insulin homeostasis. IRS-1(S612) protein phosphorylation appears to be a part of the molecular mechanism underlying these effects. These results add to the understanding of how high sucrose intake contributes to insulin resistance and diabetes pathogenesis and how postnatal nutrition and lifestyle may mitigate detrimental prenatal exposures. PMID- 29346713 TI - Spark-generated microbubble cell sorter for microfluidic flow cytometry. AB - High-speed and accurate cell sorting is of great significance for cell analysis regarding both bioresearch and clinical application. Different from the jet-in air sorting of commercial flow cytometers, sorting in fully enclosed and disposal microfluidic chips can avoid aerosols and crosscontamination, thus contributing to the improvement of biosafety and test accuracy. However, current microfluidic sorters usually require complicated structures, or otherwise cannot attain high throughput. In this article, a sorting mechanism for microfluidics is proposed for the first time based on the jet flow induced by the spark-generated cavitation microbubble that can be easily realized by a pair of electrodes. The sorter was integrated into a microfluidic chip based on three-dimensional (3D) hydrodynamic focusing and a binary optical element (BOE) for laser illumination. Besides, several aspects of the sorting mechanism were studied to optimize the device. It achieved a switching time of 250 MUs at the sample flow velocity of 5 m/s and performed the continuous operation at 200 Hz. Both the stability of fluorescence signals and the viability of cells were basically maintained. To conclude, this work explores a new on-chip sorting mechanism which possesses the merits of simple structure, easy control, and fast switching. (c) 2018 International Society for Advancement of Cytometry. PMID- 29346714 TI - "Vascular profiles" of regenerative and dysplastic nodules. PMID- 29346715 TI - Duchenne muscular dystrophy caused by a novel deep intronic DMD mutation. PMID- 29346716 TI - Neuropeptide AF Induces Piecemeal Degranulation in Murine Mucosal Mast Cells: A New Mediator in Neuro-Immune Communication in the Intestinal Lamina Propria? AB - Neuropeptides AF (NPAF), FF (NPFF) and SF (NPSF) are RFamide neuropeptides known to be widely expressed in the mammalian central nervous system, where they fulfill a wide range of functions with pain modulation being the most prominent one. Recent evidence indicates that RFamides act as mediators in mast cell sensory nerve communications related to allergic disease. Previous work by our group has shown that the expression levels of some members of the Mas-related gene receptor (Mrgpr) family in both enteric neurons and mucosal mast cells change during intestinal inflammation. The Mrgpr subtypes C11 and A4 can be activated by NPAF, while A1 and C11 are triggered by NPFF. The aim of the present study was to investigate whether RFamides of the NPFF group are expressed in the gastrointestinal tract and to identify possible targets and receptors that might be involved in RFamide-associated mast cell modulation. To this end, the expression and distribution patterns of NPFF/AF receptors and the NPFF precursor protein were determined in bone marrow-derived mucosal mast cells (BMMCs) by immunocytochemistry and (RT-) PCR. BMMCs were found to express MrgprA4 and A1, and functional analysis of the effects of NPAF by means of a beta-hexosaminidase assay, mMCP-1 ELISA, electron microscopy and live cell calcium imaging revealed a piecemeal degranulation induced by NPAF. However, knock-out of MrgprA4 and A1 did not reduce the effect of NPAF, indicating that the BMMC response to NPAF was receptor independent. ProNPFF was expressed in neurons and BMMCs, suggesting that both cell types are potential sources of NPAF in situ. Our results show that the RFamide NPAF can be considered as a novel modulator of BMMC activity in the neuro immune communication in the gastrointestinal tract, although the exact signaling pathway remains to be elucidated. Anat Rec, 00:000-000, 2018. (c) 2018 Wiley Periodicals, Inc. Anat Rec, 301:1103-1114, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29346718 TI - EDITORIAL. PMID- 29346717 TI - Anterior cruciate ligament tear induces a sustained loss of muscle fiber force production. AB - INTRODUCTION: Patients with anterior cruciate ligament (ACL) tears have persistent quadriceps strength deficits that are thought to be due to altered neurophysiological function. Our goal was to determine the changes in muscle fiber contractility independent of the ability of motor neurons to activate fibers. METHODS: We obtained quadriceps biopsies of patients undergoing ACL reconstruction, and additional biopsies 1, 2, and 6 months after surgery. Muscles fiber contractility was assessed in vitro, along with whole muscle strength testing. RESULTS: Compared with controls, patients had a 30% reduction in normalized muscle fiber force at the time of surgery. One month later, the force deficit was 41%, and at 6 months the deficit was 23%. Whole muscle strength testing demonstrated similar trends. DISCUSSION: While neurophysiological dysfunction contributes to whole muscle weakness, there is also a reduction in the force generating capacity of individual muscle cells independent of alpha motor neuron activation. Muscle Nerve, 2018. PMID- 29346719 TI - A Tunable Molten-Salt Route for Scalable Synthesis of Ultrathin Amorphous Carbon Nanosheets as High-Performance Anode Materials for Lithium-Ion Batteries. AB - Amorphous carbon is regarded as a promising alternative to commercial graphite as the lithium-ion battery anode due to its capability to reversibly store more lithium ions. However, the structural disorder with a large number of defects can lead to low electrical conductivity of the amorphous carbon, thus limiting its application for high power output. Herein, ultrathin amorphous carbon nanosheets were prepared from petroleum asphalt through tuning the carbonization temperature in a molten-salt medium. The amorphous nanostructure with expanded carbon interlayer spacing can provide substantial active sites for lithium storage, while the two-dimensional (2D) morphology can facilitate fast electrical conductivity. As a result, the electrodes deliver a high reversible capacity, outstanding rate capability, and superior cycling performance (579 and 396 mAh g 1 at 2 and 5 A g-1 after 900 cycles). Furthermore, full cells consisting of the carbon anodes coupled with LiMn2O4 cathodes exhibit high specific capacity (608 mAh g-1 at 50 mA g-1) and impressive cycling stability with slow capacity loss (0.16% per cycle at 200 mA g-1). The present study not only paves the way for industrial-scale synthesis of advanced carbon materials for lithium-ion batteries but also deepens the fundamental understanding of the intrinsic mechanism of the molten-salt method. PMID- 29346720 TI - Nanoscale Control of Molecular Self-Assembly Induced by Plasmonic Hot-Electron Dynamics. AB - Self-assembly processes allow designing and creating complex nanostructures using molecules as building blocks and surfaces as scaffolds. This autonomous driven construction is possible due to a complex thermodynamic balance of molecule surface interactions. As such, nanoscale guidance and control over this process is hard to achieve. Here we use the highly localized light-to-chemical-energy conversion of plasmonic materials to spatially cleave Au-S bonds on predetermined locations within a single nanoparticle, enabling a high degree of control over this archetypal system for molecular self-assembly. Our method offers nanoscale precision and high-throughput light-induced tailoring of the surface chemistry of individual and packed nanosized metallic structures by simply varying wavelength and polarization of the incident light. Assisted by single-molecule super resolution fluorescence microscopy, we image, quantify, and shed light onto the plasmon-induced desorption mechanism. Our results point toward localized distribution of hot electrons, contrary to uniformly distributed lattice heating, as the mechanism inducing Au-S bond breaking. We demonstrate that plasmon-induced photodesorption enables subdiffraction and even subparticle multiplexing. Finally, we explore possible routes to further exploit these concepts for the selective positioning of nanomaterials and the sorting and purification of colloidal nanoparticles. PMID- 29346721 TI - Emulsion Electrospinning of Polytetrafluoroethylene (PTFE) Nanofibrous Membranes for High-Performance Triboelectric Nanogenerators. AB - Electrospinning is a simple, versatile technique for fabricating fibrous nanomaterials with the desirable features of extremely high porosities and large surface areas. Using emulsion electrospinning, polytetrafluoroethylene/polyethene oxide (PTFE/PEO) membranes were fabricated, followed by a sintering process to obtain pure PTFE fibrous membranes, which were further utilized against a polyamide 6 (PA6) membrane for vertical contact-mode triboelectric nanogenerators (TENGs). Electrostatic force microscopy (EFM) measurements of the sintered electrospun PTFE membranes revealed the presence of both positive and negative surface charges owing to the transfer of positive charge from PEO which was further corroborated by FTIR measurements. To enhance the ensuing triboelectric surface charge, a facile negative charge-injection process was carried out onto the electrospun (ES) PTFE subsequently. The fabricated TENG gave a stabilized peak-to-peak open-circuit voltage (Voc) of up to ~900 V, a short-circuit current density (Jsc) of ~20 mA m-2, and a corresponding charge density of ~149 MUC m-2, which are ~12, 14, and 11 times higher than the corresponding values prior to the ion-injection treatment. This increase in the surface charge density is caused by the inversion of positive surface charges with the simultaneous increase in the negative surface charge on the PTFE surface, which was confirmed by using EFM measurements. The negative charge injection led to an enhanced power output density of ~9 W m-2 with high stability as confirmed from the continuous operation of the ion-injected PTFE/PA6 TENG for 30 000 operation cycles, without any significant reduction in the output. The work thus introduces a relatively simple, cost-effective, and environmentally friendly technique for fabricating fibrous fluoropolymer polymer membranes with high thermal/chemical resistance in TENG field and a direct ion-injection method which is able to dramatically improve the surface negative charge density of the PTFE fibrous membranes. PMID- 29346722 TI - Layer-by-Layer Epitaxial Growth of Defect-Engineered Strontium Cobaltites. AB - Control over structure and composition of (ABO3) perovskite oxides offers exciting opportunities since these materials possess unique, tunable properties. Perovskite oxides with cobalt B-site cations are particularly promising, as the range of the cation's stable oxidation states leads to many possible structural frameworks. Here, we report growth of strontium cobalt oxide thin films by molecular beam epitaxy, and conditions necessary to stabilize different defect concentration phases. In situ X-ray scattering is used to monitor structural evolution during growth, while in situ X-ray absorption near-edge spectroscopy is used to probe oxidation state and measure changes to oxygen vacancy concentration as a function of film thickness. Experimental results are compared to kinetically limited thermodynamic predictions, in particular, solute trapping, with semiquantitative agreement. Agreement between observations of dependence of cobaltite phase on oxidation activity and deposition rate, and predictions indicates that a combined experimental/theoretical approach is key to understanding phase behavior in the strontium cobalt oxide system. PMID- 29346723 TI - Shear-Induced Brittle Failure along Grain Boundaries in Boron Carbide. AB - The role that grain boundaries (GBs) can play on mechanical properties has been studied extensively for metals and alloys. However, for covalent solids such as boron carbide (B4C), the role of GB on the inelastic response to applied stresses is not well established. We consider here the unusual ceramic, boron carbide (B4C), which is very hard and lightweight but exhibits brittle impact behavior. We used quantum mechanics (QM) simulations to examine the mechanical response in atomistic structures that model GBs in B4C under pure shear and also with biaxial shear deformation that mimics indentation stress conditions. We carried out these studies for two simple GB models including also the effect of adding Fe atoms (possible sintering aid and/or impurity) to the GB. We found that the critical shear stresses of these GB models are much lower than that for crystalline and twinned B4C. The two GB models lead to different interfacial energies. The higher interfacial energy at the GB only slightly decreases the critical shear stress but dramatically increases the critical failure strain. Doping the GB with Fe decreases the critical shear stress of at the boundary by 14% under pure shear deformation. In all GBs studied here, failure arises from deconstructing the icosahedra within the GB region under shear deformation. We find that Fe dopant interacts with icosahedra at the GB to facilitate this deconstruction of icosahedra. These results provide significant insight into designing polycrystalline B4C with improved strength and ductility. PMID- 29346724 TI - Structural and Biophysical Characterization of Human EXTL3: Domain Organization, Glycosylation, and Solution Structure. AB - Heparan sulfate proteoglycans are proteins substituted with one or more heparan sulfate (HS) polysaccharides, found in abundance at cell surfaces. HS chains influence the activity of many biologically important molecules involved in cellular communication and signaling. The exostosin (EXT) proteins are glycosyltransferases in the Golgi apparatus that assemble HS chains on HSPGs. The EXTL3 enzyme mainly works as an initiator in HS biosynthesis. In this work, human lumenal N-glycosylated EXTL3 (EXTL3DeltaN) was cloned, expressed in human embryonic kidney cells, and purified. Various biophysical and biochemical approaches were then employed to elucidate the N-glycosylation sites and the function of their attached N-glycans. Furthermore, the stability and conformation of the purified EXTL3DeltaN protein in solution have been analyzed. Our data show that EXTL3DeltaN has N-glycans at least at two positions, Asn290 and Asn592, which seem to be critical for proper protein folding and/or release. EXTL3DeltaN is quite stable, as high temperature (~59 degrees C) was required for denaturation. Deconvolution of the EXTL3DeltaN far-UV CD spectrum revealed a substantial fraction of beta sheets (25%) with a minor proportion of alpha helices (14%) in the secondary structure. Solution small-angle X-ray scattering and dynamic light scattering revealed an extended structure suggestive of a dimeric arrangement and consisting of two distinct regions, narrow and broad, respectively. This is consistent with bioinformatics analyses suggesting a 3 domain structure with two glycosyltransferase domains and a coiled-coil domain. PMID- 29346725 TI - Rapid Chemical Vapor Infiltration of Silicon Carbide Minicomposites at Atmospheric Pressure. AB - The chemical vapor infiltration technique is one of the most popular for the fabrication of the matrix portion of a ceramic matrix composite. This work focuses on tailoring an atmospheric pressure deposition of silicon carbide onto carbon fiber tows using the methyltrichlorosilane (CH3SiCl3) and H2 deposition system at atmospheric pressure to create minicomposites faster than low pressure systems. Adjustment of the flow rate of H2 bubbled through CH3SiCl3 will improve the uniformity of the deposition as well as infiltrate the substrate more completely as the flow rate is decreased. Low pressure depositions conducted at 50 Torr deposit SiC at a rate of approximately 200 nm*h-1, while the atmospheric pressure system presented has a deposition rate ranging from 750 nm*h-1 to 3.88 MUm*h-1. The minicomposites fabricated in this study had approximate total porosities of 3 and 6% for 10 and 25 SCCM infiltrations, respectively. PMID- 29346726 TI - The Effect of Dielectric Environment on Doping Efficiency in Colloidal PbSe Nanostructures. AB - Doping, as a central strategy to control free carrier type and concentration in semiconductor materials, suffers from low efficiency at the nanoscale, especially in systems having high permittivity (epsilon) and large Bohr radii, such as lead chalcogenide nanocrystals (NCs) and nanowires (NWs). Here, we study dielectric confinement effects on the doping efficiency of lead chalcogenides nanostructures by integrating PbSe NWs in the platform of field effect transistors (FETs). Elemental Pb or In or elemental Se is deposited by thermal evaporation to remotely n- or p-dope the NWs. Polymeric and oxide materials of varying epsilon are subsequently deposited to control the dielectric environment surrounding the NWs. Analyzing the device characteristics, we extract the change of carrier concentration introduced by tailoring the dielectric environment. The calculated doping efficiency for n-type (Pb/In) and p-type (Se) dopants increases as the epsilon of the surrounding medium increases. Using a high-epsilon material, such as HfO2 for encapsulation, the doping efficiency can be enhanced by >10-fold. A theoretical model is built to describe the doping efficiency in PbSe NWs embedded in different dielectric environments, which agrees with our experimental data for both NW array and single NW devices. As dielectric confinement affects all low dimensional materials, engineering the dielectric environment is a promising general approach to enhance doping concentrations, without introducing excess impurities that may scatter carriers, and is suitable for various device applications. PMID- 29346727 TI - Bioinspired Pressure-Tolerant Asymmetric Slippery Surface for Continuous Self Transport of Gas Bubbles in Aqueous Environment. AB - Biosurfaces with geometry-gradient structures or special wettabilities demonstrate intriguing performance in manipulating the behaviors of versatile fluids. By mimicking natural species, that is, the cactus spine with a shape gradient morphology and the Picher plant with a lubricated inner surface, we have successfully prepared an asymmetric slippery surface by following the processes of CO2-laser cutting, superhydrophobic modification, and the fluorinert infusion. The asymmetric morphology will cause the deformation of gas bubbles and subsequently engender an asymmetric driven force on them. Due to the infusion of fluorinert, which has a low surface energy (~16 mN/m, 25 degrees C) and an easy fluidic property (~0.75 cP, 25 degrees C), the slippery surface demonstrates high adhesive force (~300 MUN) but low friction force on the gas bubbles. Under the cooperation of the asymmetric morphology and fluorinert infused surface, the fabricated asymmetric slippery surface is applicable to the directional and continuous bubble delivery in an aqueous environment. More importantly, due to the hard-compressed property of fluorinert, the asymmetric slippery surface is facilitated with distinguished bubble transport capability even in a pressurized environment (~0.65 MPa), showing its feasibility in practical industrial production. In addition, asymmetric slippery surfaces with a snowflake-like structure and a star-shaped structure were successfully fabricated for the real world applications, both of which illustrated reliable performances in the continuous generation, directional transportation, and efficient collection of CO2 and H2 microbubbles. PMID- 29346728 TI - Design and Assembly of Chiral Coordination Cages for Asymmetric Sequential Reactions. AB - Supramolecular nanoreactors featuring multiple catalytically active sites are of great importance, especially for asymmetric catalysis, and are yet challenging to construct. Here we report the design and assembly of five chiral single- and mixed-linker tetrahedral coordination cages using six dicarboxylate ligands derived-from enantiopure Mn(salen), Cr(salen) and/or Fe(salen) as linear linkers and four Cp3Zr3 clusters as three-connected vertices. The formation of these cages was confirmed by a variety of techniques including single-crystal and powder X-ray diffraction, inductively coupled plasma optical emission spectrometer, quadrupole-time-of-flight mass spectrometry and energy dispersive X ray spectrometry. The cages feature a nanoscale hydrophobic cavity decorated with the same or different catalytically active sites, and the mixed-linker cage bearing Mn(salen) and Cr(salen) species is shown to be an efficient supramolecular catalyst for sequential asymmetric alkene epoxidation/epoxide ring opening reactions with up to 99.9% ee. The cage catalyst demonstrates improved activity and enantioselectivity over the free catalysts owing to stabilization of catalytically active metallosalen units and concentration of reactants within the cavity. Manipulation of catalytic organic linkers in cages can control the activities and selectivities, which may provide new opportunities for the design and assembly of novel functional supramolecular architectures. PMID- 29346729 TI - Electronic Interactions in Iminophosphorane Superbase Complexes with Carbon Dioxide. AB - Iminophosphoranes or phosphazenes are an important class of compounds with increasing use in synthetic organic chemistry as neutral organic superbases exhibiting low nucleophilicity. Their electronic structure and therefore their properties strongly depend on substitution, but there have been very few theoretical studies devoted to this topic, and more specifically to the formation of electron donor-acceptor complexes of iminophosphoranes with electrophiles. In this work, we have investigated the interaction with carbon dioxide at different ab initio levels. Carbon dioxide usually behaves as a Lewis acid and the reaction with iminiphosphoranes has been described as a nonconventional aza-Wittig process leading to isocyanates. The reaction can be conducted in supercritical CO2 conditions (carbon dioxide acts as both solvent and reactant), which is a promising strategy in the context of green chemistry. Our calculations have been carried out at the CCSD(T)/aug-cc-pVTZ//MP2/aug-cc-pVTZ level for model systems and at the M06-2X/6-611+G(d,p) level for a larger species used in experiments. The electronic interactions and the interaction energies are analyzed and discussed in detail using the natural bond orbital method. Proton affinities and gas-phase basicities are provided as well. PMID- 29346731 TI - Direct Polymerization of the Arsenic Drug PENAO to Obtain Nanoparticles with High Thiol-Reactivity and Anti-Cancer Efficiency. AB - PENAO (4-(N-(S-penicillaminylacetyl)amino) phenylarsonous acid), which is a mitochondria inhibitor that reacts with adenine nucleotide translocator (ANT), is currently being trialed in patients with solid tumors. To increase the stability of the drug, the formation of nanoparticles has been proposed. Herein, the direct synthesis of polymeric micelles based on the anticancer drug PENAO is presented. PENAO is readily available for amidation reaction to form PENAO MA (4-(N-(S penicillaminylacetyl) amino) phenylarsonous acid methacrylamide) which undergoes RAFT (reversible addition-fragmentation chain transfer) polymerization with poly(ethylene glycol methyl ether methacrylate) as comonomer and poly(methyl methacrylate) (pMMA) as chain transfer agent, resulting in p(MMA)-b-p(PEG-co PENAO) block copolymers with 3-15 wt % of PENAO MA. The different block copolymers self-assembled into micelle structures, varying in size and stability (Dh = 84-234 nm, cmc = 0.5-82 MUg mol-1) depending on the hydrophilic to hydrophobic ratio of the polymer blocks and the amount of drug in the corona of the particle. The more stable micelle structures were investigated toward 143B human osteosarcoma cells, showing an enhanced cytotoxicity and cellular uptake compared to the free drug PENAO (IC50 (PENAO) = 2.7 +/- 0.3 MUM; IC50 (micelle M4) = 0.8 +/- 0.02 MUM). Furthermore, PENAOs arsonous acid residue remains active when incorporated into a polymer matrix and conjugates to small mono and closely spaced dithiols and is able to actively target the mitochondria, which is PENAO's main target to introduce growth inhibition in cancer cells. As a result, no cleavable linker between drug and polymer was necessary for the delivery of PENAO to osteosarcoma cells. These findings provide a rationale for in vivo studies of micelle M4 versus PENAO in an osteosarcoma animal model. PMID- 29346732 TI - Microscopic Theory of Coupled Slow Activated Dynamics in Glass-Forming Binary Mixtures. AB - The Elastically Collective Nonlinear Langevin Equation theory for one-component viscous liquids and suspensions is generalized to treat coupled slow activated relaxation and diffusion in glass-forming binary sphere mixtures of any composition, size ratio, and interparticle interactions. A trajectory-level dynamical coupling parameter concept is introduced to construct two coupled dynamic free energy functions for the smaller penetrant and larger matrix particle. A two-step dynamical picture is proposed where the first-step process involves matrix-facilitated penetrant hopping quantified in a self-consistent manner based on a temporal coincidence condition. After penetrants dynamically equilibrate, the effectively one-component matrix particle dynamics is controlled by a new dynamic free energy (second-step process). Depending on the time scales associated with the first- and second-step processes, as well as the extent of matrix-correlated facilitation, distinct physical scenarios are predicted. The theory is implemented for purely hard-core interactions, and addresses the glass transition based on variable kinetic criteria, penetrant-matrix coupled activated relaxation, self-diffusion of both species, dynamic fragility, and shear elasticity. Testable predictions are made. Motivated by the analytic ultralocal limit idea derived for pure hard sphere fluids, we identify structure thermodynamics-dynamics relationships. As a case study for molecule-polymer thermal mixtures, the chemically matched fully miscible polystyrene-toluene system is quantitatively studied based on a predictive mapping scheme. The resulting no-adjustable-parameter results for toluene diffusivity and the mixture glass transition temperature are in good agreement with experiment. The theory provides a foundation to treat diverse dynamical problems in glass-forming mixtures, including suspensions of colloids and nanoparticles, polymer-molecule liquids, and polymer nanocomposites. PMID- 29346730 TI - Two-Dimensional Spectroscopy Is Being Used to Address Core Scientific Questions in Biology and Materials Science. AB - Two-dimensional spectroscopy is a powerful tool for extracting structural and dynamic information from a wide range of chemical systems. We provide a brief overview of the ways in which two-dimensional visible and infrared spectroscopies are being applied to elucidate fundamental details of important processes in biological and materials science. The topics covered include amyloid proteins, photosynthetic complexes, ion channels, photovoltaics, batteries, as well as a variety of promising new methods in two-dimensional spectroscopy. PMID- 29346733 TI - Synthesis and Structure-Activity Relationship (SAR) Studies of Novel Pyrazolopyridine Derivatives as Inhibitors of Enterovirus Replication. AB - A series of novel pyrazolopyridine compounds have been designed and prepared by a general synthetic route. Their activities against the replication of poliovirus 1, EV-A71, and CV-B3 enteroviruses were evaluated. The comprehensive understanding of the structure-activity relationship was obtained by utilizing the variation of four positions, namely, N1, C6, C4, and linker unit. From the screened analogues, the inhibitors with the highest selectivity indices at 50% inhibition of viral replication (SI50) were those with isopropyl at the N1 position and thiophenyl-2-yl unit at C6 position. Furthermore, the C4 position offered the greatest potential for improvement because many different N-aryl groups had better antiviral activities and compatibilities than the lead compound JX001. For example, JX040 with a 2-pyridyl group was the analogue with the most potent activity against non-polio enteroviruses, and JX025, possessing a 3 sulfamoylphenyl moiety, had the best activity against polioviruses. In addition, analogue JX037, possessing a novel pyrazolopyridine heterocycle, was also shown to have good antienteroviral activity, which further enlarges the compound space for antienteroviral drug design. PMID- 29346734 TI - Fluctuation Effects on the Brush Structure of Mixed Brush Nanoparticles in Solution. AB - A potentially attractive way to control nanoparticle assembly is to graft one or more polymers on the nanoparticle, to control the nanoparticle-nanoparticle interactions. When two immiscible polymers are grafted on the nanoparticle, they can microphase separate to form domains at the nanoparticle surface. Here, we computationally investigate the phase behavior of such binary mixed brush nanoparticles in solution, across a large and experimentally relevant parameter space. Specifically, we calculate the mean-field phase diagram, assuming uniform grafting of the two polymers, as a function of the nanoparticle size relative to the length of the grafted chains, the grafting density, the enthalpic repulsion between the grafted chains, and the solvent quality. We find a variety of phases including a Janus phase and phases with varying numbers of striped domains. Using a nonuniform, random distribution of grafting sites on the nanoparticle instead of the uniform distribution leads to the development of defects in the mixed brush structures. Introducing fluctuations as well leads to increasingly defective structures for the striped phases. However, we find that the simple Janus phase is preserved in all calculations, even with the introduction of nonuniform grafting and fluctuations. We conclude that the formation of the Janus phase is more realistic experimentally than is the formation of defect-free multivalent mixed brush nanoparticles. PMID- 29346735 TI - Mechanisms of Modulation of Calcium Phosphate Pathological Mineralization by Mobile and Immobile Small-Molecule Inhibitors. AB - Potential pathways for inhibiting crystal growth are via either disrupting local microenvironments surrounding crystal-solution interfaces or physically blocking solute molecule attachment. However, the actual mode of inhibition may be more complicated due to the characteristic time scale for the inhibitor adsorption and relaxation to a well-bound state at crystal surfaces. Here we demonstrate the role of citrate (CA) and hydroxycitrate (HCA) in brushite (DCPD, CaHPO4.2H2O) crystallization over a broad range of both inhibitor concentrations and supersaturations by in situ atomic force microscopy (AFM). We observed that both inhibitors exhibit two distinct actions: control of surface crystallization by the decrease of step density at high supersaturations and the decrease of the [100]Cc step velocity at high inhibitor concentration and low supersaturation. The switching of the two distinct modes depends on the terrace lifetime, and the slow kinetics along the [100]Cc step direction provides specific sites for the newly formed dislocations. Molecular modeling shows the strong HCA-crystal interaction by molecular recognition, explaining the AFM observations for the formation of new steps and surface dissolution along the [101]Cc direction due to the introduction of strong localized strain in the crystal lattice. These direct observations highlight the importance of the inhibitor coverage on mineral surfaces, as well as the solution supersaturation in predicting the inhibition efficacy, and reveal an improved understanding of inhibition of calcium phosphate biomineralization, with clinical implications for the full therapeutic potential of small-molecule inhibitors for kidney stone disease. PMID- 29346736 TI - Light-Activatable Red Blood Cell Membrane-Camouflaged Dimeric Prodrug Nanoparticles for Synergistic Photodynamic/Chemotherapy. AB - Biomimetic approach offers numerous opportunities to design therapeutic platforms with enhanced antitumor performance and biocompatibility. Herein we report red blood cell membrane-camouflaged nanoparticles (RBC(M(TPC-PTX))) for synergistic chemo- and photodynamic therapy (PDT). Specifically, the inner core is mainly constructed by reactive oxygen species (ROS)-responsive PTX dimer (PTX2-TK) and photosensitizer 5,10,15,20-tetraphenylchlorin (TPC). In vitro experiments show that the prepared RBC(M(TPC-PTX)) is readily taken up into endosomes. Under appropriate light irradiation, the TPC can generate ROS, not only for PDT but also for triggering PTX2-TK cleavage and on-demand PTX release for chemotherapy. In vivo results show that the coating of RBC membrane prolongs blood circulation and improves tumor accumulation. The combination of chemo- and photodynamic therapy enhances anticancer therapeutic activity, and light-triggered drug release reduces systematic toxicity. All these characteristics render the described technology extremely promising for cancer treatment. PMID- 29346737 TI - Quantitative and Qualitative Assessment of the Relative Arterial Contributions to the Calcaneus. AB - BACKGROUND: The purpose of this study was to quantitatively and qualitatively assess relative arterial contributions to the calcaneus. METHOD: Fourteen cadaveric ankle pairs were used. In each specimen, the posterior tibial artery, peroneal artery, and anterior tibial artery were cannulated and used for contrast enhanced magnetic resonance imaging (MRI) and computed tomography (CT). Quantitative MRI analysis of the pre- and postcontrast MRI scans facilitated assessment of relative arterial contributions. In addition, postcontrast MRIs were used to measure all perfused arterial entry points and scaled to a 3 dimensional calcaneus model. Contrast-enhanced CT imaging was assessed to further delineate the extraosseous arterial course. Two pairs underwent infusion of diluted BaSO4 through a constant-pressure pump using extended infusion duration. RESULTS: Quantitative MRI findings indicated the peroneal artery provided 52.6% of the calcaneal arterial supply, 31.6% from the posterior tibial artery, and 15.8% from the anterior tibial artery. The cortical entry points were found in fairly consistent patterns along calcaneal cortical surfaces. All specimens demonstrated intraosseous anastomoses between lateral and medial entry points at common locations. CONCLUSIONS: The peroneal artery was found to provide the largest calcaneal arterial contribution, followed by the posterior tibial artery and anterior tibial artery. A rich anastomotic arterial network was found supplying the calcaneus. CLINICAL RELEVANCE: This study provides quantitative and qualitative findings of the relative arterial contribution of the calcaneus. This knowledge can help expand our understanding of calcaneal vascularization, demonstrate the vascular impact of calcaneal fracture and surgery, and facilitate future research on the arterial anatomy of the calcaneal soft tissue envelope. PMID- 29346738 TI - First Record of Leucocytozoon (Haemosporida: Leucocytozoidae) in Amazonia: Evidence for Rarity in Neotropical Lowlands or Lack of Sampling for This Parasite Genus? AB - Birds harbor an astonishing diversity of haemosporidian parasites belonging to the genera Haemoproteus, Leucocytozoon, and Plasmodium. Currently there are more than 250 morphologically described avian haemosporidian species and 2,828 unique lineages found in virtually all avian clades and zoogeographic regions, except for Antarctica. Our report is based on PCR and microscopic screening of 1,302 individual avian samples from Brazil to detect the underrepresented genus Leucocytozoon. This survey primarily focuses on passerine birds collected from Amazonia, the Atlantic Rain Forest, and Pantanal. We also summarize studies conducted in Brazil that report haemosporidian prevalence using both microscopy and molecular tools and present for the first time a record of Leucocytozoon infecting an avian host population in Amazonia. Based on our findings, we suggest that high average temperatures may be constraining both the distribution and diversity of Leucocytozoon in lowland tropical South America. PMID- 29346739 TI - The Role of the Diabetes Educator in Diabetes Formulary and Medical Device Decisions. AB - It is the position of the American Association of Diabetes Educators that diabetes educators should be included as expert consultants for formulary decisions regarding diabetes medications and medical devices. PMID- 29346740 TI - Role of the Diabetes Educator in Inpatient Diabetes Management. AB - It is the position of American Association of Diabetes Educators (AADE) that all inpatient interdisciplinary teams include a diabetes educator to lead or support improvement efforts that affect patients hospitalized with diabetes or hyperglycemia. This not only encompasses patient and family education but education of interdisciplinary team members and achievement of diabetes-related organizational quality metrics and performance outcomes. PMID- 29346742 TI - Management of Children With Diabetes in the School Setting. AB - Diabetes educators are well positioned to help optimize care of the student with diabetes within the school setting. PMID- 29346743 TI - Publishing AADE's Position Statements. PMID- 29346745 TI - The THIK and Thin of Microglia Dynamics. AB - Madry et al. (2018) show that the two-pore potassium channel THIK-1 is tonically active in microglia and promotes microglial ramification and surveillance of the brain parenchyma. Interestingly, THIK-1 is not essential to damage-induced outgrowth of microglial processes but is critical to microglial IL-1beta release. PMID- 29346744 TI - 2017 National Standards for Diabetes Self-Management Education and Support. AB - Purpose The purpose of this study is to review the literature for Diabetes Self Management Education and Support (DSMES) to ensure the National Standards for DSMES (Standards) align with current evidence-based practices and utilization trends. Methods The 10 Standards were divided among 20 interdisciplinary workgroup members. Members searched the current research for diabetes education and support, behavioral health, clinical, health care environment, technical, reimbursement, and business practice for the strongest evidence that guided the Standards revision. Results Diabetes Self-Management Education and Support facilitates the knowledge, skills, and ability necessary for diabetes self-care as well as activities that assist a person in implementing and sustaining the behaviors needed to manage their condition on an ongoing basis. The evidence indicates that health care providers and people affected by diabetes are embracing technology, and this is having a positive impact of DSMES access, utilization, and outcomes. Conclusion Quality DSMES continues to be a critical element of care for all people with diabetes. The DSMES services must be individualized and guided by the concerns, preferences, and needs of the person affected by diabetes. Even with the abundance of evidence supporting the benefits of DSMES, it continues to be underutilized, but as with other health care services, technology is changing the way DSMES is delivered and utilized with positive outcomes. PMID- 29346746 TI - Shh-ushing Midline Crossing through Remote Protein Transport. AB - Shh contributes to neural circuit formation with different mechanisms. In this issue, Peng and colleagues (2018) identify a novel trans-axonal mechanism by which Shh derived from contralateral projecting retinal ganglion cells prevents midline crossing of Boc-expressing ipsilateral axons at the optic chiasm. PMID- 29346747 TI - Sensorimotor Integration for Decision Making: How the Worm Steers. AB - Animals' movements actively shape their perception and subsequent decision making. In this issue of Neuron, Liu et al. (2018) show how C. elegans nematodes steer toward an odorant: a dedicated interneuron class integrates oscillatory olfactory signals, generated by head swings, with corollary discharge motor signals. PMID- 29346748 TI - Spiraling Connectivity of NAc-VTA Circuitry. AB - How do nucleus accumbens (NAc) subdivisions shape information flow into distinct ventral tegmental area (VTA) subcircuits? Yang et al. (2018) provide insightful answers to this question by expanding our knowledge about the circuit architecture and function of reciprocal connectivity between NAc and VTA. PMID- 29346749 TI - Statistical Challenges in "Big Data" Human Neuroimaging. AB - Smith and Nichols discuss "big data" human neuroimaging studies, with very large subject numbers and amounts of data. These studies provide great opportunities for making new discoveries about the brain but raise many new analytical challenges and interpretational risks. PMID- 29346750 TI - From Healthcare to Warfare and Reverse: How Should We Regulate Dual-Use Neurotechnology? AB - Recent advances in military-funded neurotechnology and novel opportunities for misusing neurodevices show that the problem of dual use is inherent to neuroscience. This paper discusses how the neuroscience community should respond to these dilemmas and delineates a neuroscience-specific biosecurity framework. This neurosecurity framework involves calibrated regulation, (neuro)ethical guidelines, and awareness-raising activities within the scientific community. PMID- 29346751 TI - The Brain Compass: A Perspective on How Self-Motion Updates the Head Direction Cell Attractor. AB - Head direction cells form an internal compass signaling head azimuth orientation even without visual landmarks. This property is generated by a neuronal ring attractor that is updated using rotation velocity cues. The properties and origin of this velocity drive remain, however, unknown. We propose a quantitative framework whereby this drive represents a multisensory self-motion estimate computed through an internal model that uses sensory prediction errors of vestibular, visual, and somatosensory cues to improve on-line motor drive. We show how restraint-dependent strength of recurrent connections within the attractor can explain differences in head direction cell firing between free foraging and restrained passive rotation. We also summarize recent findings on how gravity influences azimuth coding, indicating that the velocity drive is not purely egocentric. Finally, we show that the internal compass may be three dimensional and hypothesize that the additional vertical degrees of freedom use global allocentric gravity cues. PMID- 29346753 TI - Sonic Hedgehog Is a Remotely Produced Cue that Controls Axon Guidance Trans axonally at a Midline Choice Point. AB - At the optic chiasm choice point, ipsilateral retinal ganglion cells (RGCs) are repelled away from the midline by guidance cues, including Ephrin-B2 and Sonic Hedgehog (Shh). Although guidance cues are normally produced by cells residing at the choice point, the mRNA for Shh is not found at the optic chiasm. Here we show that Shh protein is instead produced by contralateral RGCs at the retina, transported anterogradely along the axon, and accumulates at the optic chiasm to repel ipsilateral RGCs. In vitro, contralateral RGC axons, which secrete Shh, repel ipsilateral RGCs in a Boc- and Smo-dependent manner. Finally, knockdown of Shh in the contralateral retina causes a decrease in the proportion of ipsilateral RGCs in a non-cell-autonomous manner. These findings reveal a role for axon-axon interactions in ipsilateral RGC guidance, and they establish that remotely produced cues can act at axon guidance midline choice points. PMID- 29346752 TI - Epitranscriptomic m6A Regulation of Axon Regeneration in the Adult Mammalian Nervous System. AB - N6-methyladenosine (m6A) affects multiple aspects of mRNA metabolism and regulates developmental transitions by promoting mRNA decay. Little is known about the role of m6A in the adult mammalian nervous system. Here we report that sciatic nerve lesion elevates levels of m6A-tagged transcripts encoding many regeneration-associated genes and protein translation machinery components in the adult mouse dorsal root ganglion (DRG). Single-base resolution m6A-CLIP mapping further reveals a dynamic m6A landscape in the adult DRG upon injury. Loss of either m6A methyltransferase complex component Mettl14 or m6A-binding protein Ythdf1 globally attenuates injury-induced protein translation in adult DRGs and reduces functional axon regeneration in the peripheral nervous system in vivo. Furthermore, Pten deletion-induced axon regeneration of retinal ganglion neurons in the adult central nervous system is attenuated upon Mettl14 knockdown. Our study reveals a critical epitranscriptomic mechanism in promoting injury-induced protein synthesis and axon regeneration in the adult mammalian nervous system. PMID- 29346755 TI - Connecting Neural Codes with Behavior in the Auditory System of Drosophila. PMID- 29346754 TI - Input-Specific NMDAR-Dependent Potentiation of Dendritic GABAergic Inhibition. AB - Preservation of a balance between synaptic excitation and inhibition is critical for normal brain function. A number of homeostatic cellular mechanisms have been suggested to play a role in maintaining this balance, including long-term plasticity of GABAergic inhibitory synapses. Many previous studies have demonstrated a coupling of postsynaptic spiking with modification of perisomatic inhibition. Here, we demonstrate that activation of NMDA-type glutamate receptors leads to input-specific long-term potentiation of dendritic inhibition mediated by somatostatin-expressing interneurons. This form of plasticity is expressed postsynaptically and requires both CaMKIIalpha and the beta2 subunit of the GABA A receptor. Importantly, this process may function to preserve dendritic inhibition, as genetic deletion of NMDAR signaling results in a selective weakening of dendritic inhibition. Overall, our results reveal a new mechanism for linking excitatory and inhibitory input in neuronal dendrites and provide novel insight into the homeostatic regulation of synaptic transmission in cortical circuits. PMID- 29346756 TI - Exploration Disrupts Choice-Predictive Signals and Alters Dynamics in Prefrontal Cortex. PMID- 29346757 TI - p53 Suppresses Metabolic Stress-Induced Ferroptosis in Cancer Cells. AB - How cancer cells respond to nutrient deprivation remains poorly understood. In certain cancer cells, deprivation of cystine induces a non-apoptotic, iron dependent form of cell death termed ferroptosis. Recent evidence suggests that ferroptosis sensitivity may be modulated by the stress-responsive transcription factor and canonical tumor suppressor protein p53. Using CRISPR/Cas9 genome editing, small-molecule probes, and high-resolution, time-lapse imaging, we find that stabilization of wild-type p53 delays the onset of ferroptosis in response to cystine deprivation. This delay requires the p53 transcriptional target CDKN1A (encoding p21) and is associated with both slower depletion of intracellular glutathione and a reduced accumulation of toxic lipid-reactive oxygen species (ROS). Thus, the p53-p21 axis may help cancer cells cope with metabolic stress induced by cystine deprivation by delaying the onset of non-apoptotic cell death. PMID- 29346758 TI - Size-Dependent Axonal Bouton Dynamics following Visual Deprivation In Vivo. AB - Persistent synapses are thought to underpin the storage of sensory experience, yet little is known about their structural plasticity in vivo. We investigated how persistent presynaptic structures respond to the loss of primary sensory input. Using in vivo two-photon (2P) imaging, we measured fluctuations in the size of excitatory axonal boutons in L2/3 of adult mouse visual cortex after monocular enucleation. The average size of boutons did not change after deprivation, but the range of bouton sizes was reduced. Large boutons decreased, and small boutons increased. Reduced bouton variance was accompanied by a reduced range of correlated calcium-mediated neural activity in L2/3 of awake animals. Network simulations predicted that size-dependent plasticity may promote conditions of greater bidirectional plasticity. These predictions were supported by electrophysiological measures of short- and long-term plasticity. We propose size-dependent dynamics facilitate cortical reorganization by maximizing the potential for bidirectional plasticity. PMID- 29346760 TI - Single-Cell Transcriptional Profiling Reveals Cellular Diversity and Intercommunication in the Mouse Heart. AB - Characterization of the cardiac cellulome, the network of cells that form the heart, is essential for understanding cardiac development and normal organ function and for formulating precise therapeutic strategies to combat heart disease. Recent studies have reshaped our understanding of cardiac cellular composition and highlighted important functional roles for non-myocyte cell types. In this study, we characterized single-cell transcriptional profiles of the murine non-myocyte cardiac cellular landscape using single-cell RNA sequencing (scRNA-seq). Detailed molecular analyses revealed the diversity of the cardiac cellulome and facilitated the development of techniques to isolate understudied cardiac cell populations, such as mural cells and glia. Our analyses also revealed extensive networks of intercellular communication and suggested prevalent sexual dimorphism in gene expression in the heart. This study offers insights into the structure and function of the mammalian cardiac cellulome and provides an important resource that will stimulate studies in cardiac cell biology. PMID- 29346759 TI - NF-kappaB-Chromatin Interactions Drive Diverse Phenotypes by Modulating Transcriptional Noise. AB - Noisy gene expression generates diverse phenotypes, but little is known about mechanisms that modulate noise. Combining experiments and modeling, we studied how tumor necrosis factor (TNF) initiates noisy expression of latent HIV via the transcription factor nuclear factor kappaB (NF-kappaB) and how the HIV genomic integration site modulates noise to generate divergent (low-versus-high) phenotypes of viral activation. We show that TNF-induced transcriptional noise varies more than mean transcript number and that amplification of this noise explains low-versus-high viral activation. For a given integration site, live cell imaging shows that NF-kappaB activation correlates with viral activation, but across integration sites, NF-kappaB activation cannot account for differences in transcriptional noise and phenotypes. Instead, differences in transcriptional noise are associated with differences in chromatin state and RNA polymerase II regulation. We conclude that, whereas NF-kappaB regulates transcript abundance in each cell, the chromatin environment modulates noise in the population to support diverse HIV activation in response to TNF. PMID- 29346761 TI - INO80 Chromatin Remodeling Coordinates Metabolic Homeostasis with Cell Division. AB - Adaptive survival requires the coordination of nutrient availability with expenditure of cellular resources. For example, in nutrient-limited environments, 50% of all S. cerevisiae genes synchronize and exhibit periodic bursts of expression in coordination with respiration and cell division in the yeast metabolic cycle (YMC). Despite the importance of metabolic and proliferative synchrony, the majority of YMC regulators are currently unknown. Here, we demonstrate that the INO80 chromatin-remodeling complex is required to coordinate respiration and cell division with periodic gene expression. Specifically, INO80 mutants have severe defects in oxygen consumption and promiscuous cell division that is no longer coupled with metabolic status. In mutant cells, chromatin accessibility of periodic genes, including TORC1-responsive genes, is relatively static, concomitant with severely attenuated gene expression. Collectively, these results reveal that the INO80 complex mediates metabolic signaling to chromatin to restrict proliferation to metabolically optimal states. PMID- 29346762 TI - Transcriptome and DNA Methylome Analysis in a Mouse Model of Diet-Induced Obesity Predicts Increased Risk of Colorectal Cancer. AB - Colorectal cancer (CRC) tends to occur at older age; however, CRC incidence rates have been rising sharply among young age groups. The increasing prevalence of obesity is recognized as a major risk, yet the mechanistic underpinnings remain poorly understood. Using a diet-induced obesity mouse model, we identified obesity-associated molecular changes in the colonic epithelium of young and aged mice, and we further investigated whether the changes were reversed after weight loss. Transcriptome analysis indicated that obesity-related colonic cellular metabolic switch favoring long-chain fatty acid oxidation happened in young mice, while obesity-associated downregulation of negative feedback regulators of pro proliferative signaling pathways occurred in older mice. Strikingly, colonic DNA methylome was pre-programmed by obesity at young age, priming for a tumor-prone gene signature after aging. Furthermore, obesity-related changes were substantially preserved after short-term weight loss, but they were largely reversed after long-term weight loss. We provided mechanistic insights into increased CRC risk in obesity. PMID- 29346763 TI - Derepression of the Iroquois Homeodomain Transcription Factor Gene IRX3 Confers Differentiation Block in Acute Leukemia. AB - The Iroquois homeodomain transcription factor gene IRX3 is expressed in the developing nervous system, limb buds, and heart, and transcript levels specify obesity risk in humans. We now report a functional role for IRX3 in human acute leukemia. Although transcript levels are very low in normal human bone marrow cells, high IRX3 expression is found in ~30% of patients with acute myeloid leukemia (AML), ~50% with T-acute lymphoblastic leukemia, and ~20% with B-acute lymphoblastic leukemia, frequently in association with high-level HOXA gene expression. Expression of IRX3 alone was sufficient to immortalize hematopoietic stem and progenitor cells (HSPCs) in myeloid culture and induce lymphoid leukemias in vivo. IRX3 knockdown induced terminal differentiation of AML cells. Combined IRX3 and Hoxa9 expression in murine HSPCs impeded normal T-progenitor differentiation in lymphoid culture and substantially enhanced the morphologic and phenotypic differentiation block of AML in myeloid leukemia transplantation experiments through suppression of a terminal myelomonocytic program. Likewise, in cases of primary human AML, high IRX3 expression is strongly associated with reduced myelomonocytic differentiation. Thus, tissue-inappropriate derepression of IRX3 contributes significantly to the block in differentiation, which is the pathognomonic feature of human acute leukemias. PMID- 29346764 TI - SGK1 Governs the Reciprocal Development of Th17 and Regulatory T Cells. AB - A balance between Th17 and regulatory T (Treg) cells is critical for immune homeostasis and tolerance. Our previous work has shown Serum- and glucocorticoid induced kinase 1 (SGK1) is critical for the development and function of Th17 cells. Here, we show that SGK1 restrains the function of Treg cells and reciprocally regulates development of Th17/Treg balance. SGK1 deficiency leads to protection against autoimmunity and enhances self-tolerance by promoting Treg cell development and disarming Th17 cells. Treg cell-specific deletion of SGK1 results in enhanced Treg cell-suppressive function through preventing Foxo1 out of the nucleus, thereby promoting Foxp3 expression by binding to Foxp3 CNS1 region. Furthermore, our data suggest that SGK1 also plays a critical role in IL 23R-mediated inhibition of Treg and development of Th17 cells. Therefore, we demonstrate that SGK1 functions as a pivotal node in regulating the reciprocal development of pro-inflammatory Th17 and Foxp3+ Treg cells during autoimmune tissue inflammation. PMID- 29346765 TI - Characterization of Endothelial Cells Associated with Hematopoietic Niche Formation in Humans Identifies IL-33 As an Anabolic Factor. AB - Bone marrow formation requires an orchestrated interplay between osteogenesis, angiogenesis, and hematopoiesis that is thought to be mediated by endothelial cells. The nature of the endothelial cells and the molecular mechanisms underlying these events remain unclear in humans. Here, we identify a subset of endoglin-expressing endothelial cells enriched in human bone marrow during fetal ontogeny and upon regeneration after chemotherapeutic injury. Comprehensive transcriptional characterization by massive parallel RNA sequencing of these cells reveals a phenotypic and molecular similarity to murine type H endothelium and activation of angiocrine factors implicated in hematopoiesis, osteogenesis, and angiogenesis. Interleukin-33 (IL-33) was significantly overexpressed in these endothelial cells and promoted the expansion of distinct subsets of hematopoietic precursor cells, endothelial cells, as well as osteogenic differentiation. The identification and molecular characterization of these human regeneration associated endothelial cells is thus anticipated to instruct the discovery of angiocrine factors driving bone marrow formation and recovery after injury. PMID- 29346766 TI - Cell-Type Specificity of Callosally Evoked Excitation and Feedforward Inhibition in the Prefrontal Cortex. AB - Excitation and inhibition are highly specific in the cortex, with distinct synaptic connections made onto subtypes of projection neurons. The functional consequences of this selective connectivity depend on both synaptic strength and the intrinsic properties of targeted neurons but remain poorly understood. Here, we examine responses to callosal inputs at cortico-cortical (CC) and cortico thalamic (CT) neurons in layer 5 of mouse prelimbic prefrontal cortex (PFC). We find callosally evoked excitation and feedforward inhibition are much stronger at CT neurons compared to neighboring CC neurons. Elevated inhibition at CT neurons reflects biased synaptic inputs from parvalbumin and somatostatin positive interneurons. The intrinsic properties of postsynaptic targets equalize excitatory and inhibitory response amplitudes but selectively accelerate decays at CT neurons. Feedforward inhibition further reduces response amplitude and balances action potential firing across these projection neurons. Our findings highlight the synaptic and cellular mechanisms regulating callosal recruitment of layer 5 microcircuits in PFC. PMID- 29346767 TI - Functional Principles of Posterior Septal Inputs to the Medial Habenula. AB - The medial habenula (MHb) is an epithalamic hub contributing to expression and extinction of aversive states by bridging forebrain areas and midbrain monoaminergic centers. Although contradictory information exists regarding their synaptic properties, the physiology of the excitatory inputs to the MHb from the posterior septum remains elusive. Here, combining optogenetics-based mapping with ex vivo and in vivo physiology, we examine the synaptic properties of posterior septal afferents to the MHb and how they influence behavior. We demonstrate that MHb cells receive sparse inputs producing purely glutamatergic responses via calcium-permeable alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA), heterotrimeric GluN2A-GluN2B-GluN1 N-methyl-D-aspartate (NMDA) receptors, and inhibitory group II metabotropic glutamate receptors. We describe the complex integration dynamics of these components by MHb cells. Finally, we combine ex vivo data with realistic afferent firing patterns recorded in vivo to demonstrate that efficient optogenetic septal stimulation in the MHb induces anxiolysis and promotes locomotion, contributing long-awaited evidence in favor of the importance of this septo-habenular pathway. PMID- 29346768 TI - Activation of AMPK-Regulated CRH Neurons in the PVH is Sufficient and Necessary to Induce Dietary Preference for Carbohydrate over Fat. AB - Food selection is essential for metabolic homeostasis and is influenced by nutritional state, food palatability, and social factors such as stress. However, the mechanism responsible for selection between a high-carbohydrate diet (HCD) and a high-fat diet (HFD) remains unknown. Here, we show that activation of a subset of corticotropin-releasing hormone (CRH)-positive neurons in the rostral region of the paraventricular hypothalamus (PVH) induces selection of an HCD over an HFD in mice during refeeding after fasting, resulting in a rapid recovery from the change in ketone metabolism. These neurons manifest activation of AMP activated protein kinase (AMPK) during food deprivation, and this activation is necessary and sufficient for selection of an HCD over an HFD. Furthermore, this effect is mediated by carnitine palmitoyltransferase 1c (CPT1c). Thus, our results identify the specific neurons and intracellular signaling pathway responsible for regulation of the complex behavior of selection between an HCD and an HFD. VIDEO ABSTRACT. PMID- 29346769 TI - Switching On Depression and Potentiation in the Cerebellum. AB - Long-term depression (LTD) and long-term potentiation (LTP) in the cerebellum are important for motor learning. However, the signaling mechanisms controlling whether LTD or LTP is induced in response to synaptic stimulation remain obscure. Using a unified model of LTD and LTP at the cerebellar parallel fiber-Purkinje cell (PF-PC) synapse, we delineate the coordinated pre- and postsynaptic signaling that determines the direction of plasticity. We show that LTP is the default response to PF stimulation above a well-defined frequency threshold. However, if the calcium signal surpasses the threshold for CaMKII activation, then an ultrasensitive "on switch" activates an extracellular signal-regulated kinase (ERK)-based positive feedback loop that triggers LTD instead. This postsynaptic feedback loop is sustained by another, trans-synaptic, feedback loop that maintains nitric oxide production throughout LTD induction. When full depression is achieved, an automatic "off switch" inactivates the feedback loops, returning the network to its basal state and demarcating the end of the early phase of LTD. PMID- 29346770 TI - Integrative Analyses of De Novo Mutations Provide Deeper Biological Insights into Autism Spectrum Disorder. AB - Recent studies have established important roles of de novo mutations (DNMs) in autism spectrum disorders (ASDs). Here, we analyze DNMs in 262 ASD probands of Japanese origin and confirm the "de novo paradigm" of ASDs across ethnicities. Based on this consistency, we combine the lists of damaging DNMs in our and published ASD cohorts (total number of trios, 4,244) and perform integrative bioinformatics analyses. Besides replicating the findings of previous studies, our analyses highlight ATP-binding genes and fetal cerebellar/striatal circuits. Analysis of individual genes identified 61 genes enriched for damaging DNMs, including ten genes for which our dataset now contributes to statistical significance. Screening of compounds altering the expression of genes hit by damaging DNMs reveals a global downregulating effect of valproic acid, a known risk factor for ASDs, whereas cardiac glycosides upregulate these genes. Collectively, our integrative approach provides deeper biological and potential medical insights into ASDs. PMID- 29346771 TI - Rapid Turnover of Cortical NCAM1 Regulates Synaptic Reorganization after Peripheral Nerve Injury. AB - Peripheral nerve injury can induce pathological conditions that lead to persistent sensitized nociception. Although there is evidence that plastic changes in the cortex contribute to this process, the underlying molecular mechanisms are unclear. Here, we find that activation of the anterior cingulate cortex (ACC) induced by peripheral nerve injury increases the turnover of specific synaptic proteins in a persistent manner. We demonstrate that neural cell adhesion molecule 1 (NCAM1) is one of the molecules involved and show that it mediates spine reorganization and contributes to the behavioral sensitization. We show striking parallels in the underlying mechanism with the maintenance of NMDA-receptor- and protein-synthesis-dependent long-term potentiation (LTP) in the ACC. Our results, therefore, demonstrate a synaptic mechanism for cortical reorganization and suggest potential avenues for neuropathic pain treatment. PMID- 29346772 TI - Peroxisome Proliferator Activated Receptor Gamma Controls Mature Brown Adipocyte Inducibility through Glycerol Kinase. AB - Peroxisome proliferator-activated receptors (PPARs) have been suggested as the master regulators of adipose tissue formation. However, their role in regulating brown fat functionality has not been resolved. To address this question, we generated mice with inducible brown fat-specific deletions of PPARalpha, beta/delta, and gamma, respectively. We found that both PPARalpha and beta/deltadelta are dispensable for brown fat function. In contrast, we could show that ablation of PPARgamma in vitro and in vivo led to a reduced thermogenic capacity accompanied by a loss of inducibility by beta-adrenergic signaling, as well as a shift from oxidative fatty acid metabolism to glucose utilization. We identified glycerol kinase (Gyk) as a partial mediator of PPARgamma function and could show that Gyk expression correlates with brown fat thermogenic capacity in human brown fat biopsies. Thus, Gyk might constitute the link between PPARgamma mediated regulation of brown fat function and activation by beta-adrenergic signaling. PMID- 29346773 TI - Dual Role for DsbA in Attacking and Targeted Bacterial Cells during Type VI Secretion System-Mediated Competition. AB - Incorporation of disulfide bonds into proteins can be critical for function or stability. In bacterial cells, the periplasmic enzyme DsbA is responsible for disulfide incorporation into many extra-cytoplasmic proteins. The type VI secretion system (T6SS) is a widely occurring nanomachine that delivers toxic effector proteins directly into rival bacterial cells, playing a key role in inter-bacterial competition. We report that two redundant DsbA proteins are required for virulence and for proper deployment of the T6SS in the opportunistic pathogen Serratia marcescens, with several T6SS components being subject to the action of DsbA in secreting cells. Importantly, we demonstrate that DsbA also plays a critical role in recipient target cells, being required for the toxicity of certain incoming effector proteins. Thus we reveal that target cell functions can be hijacked by T6SS effectors for effector activation, adding a further level of complexity to the T6SS-mediated inter-bacterial interactions which define varied microbial communities. PMID- 29346774 TI - Mannose Receptor 1 Restricts HIV Particle Release from Infected Macrophages. AB - Human mannose receptor 1 (hMRC1) is expressed on the surface of most tissue macrophages, dendritic cells, and select lymphatic or liver endothelial cells. HMRC1 contributes to the binding of HIV-1 to monocyte-derived macrophages (MDMs) and is involved in the endocytic uptake of HIV-1 into these cells. Here, we identify hMRC1 as an antiviral factor that inhibits virus release through a bone marrow stromal antigen 2 (BST-2)-like mechanism. Virions produced in the presence of hMRC1 accumulated in clusters at the cell surface but were fully infectious. HIV-1 counteracted the effect by transcriptional silencing of hMRC1. The effect of hMRC1 was not virus isolate specific. Surprisingly, deletion of the Env protein, which is known to interact with hMRC1, did not relieve the hMRC1 antiviral activity, suggesting the involvement of additional cellular factor(s) in the process. Our data reveal an antiviral mechanism that is active in primary human macrophages and is counteracted by HIV-1 through downregulation of hMRC1. PMID- 29346775 TI - BRD4 Promotes DNA Repair and Mediates the Formation of TMPRSS2-ERG Gene Rearrangements in Prostate Cancer. AB - BRD4 belongs to the bromodomain and extraterminal (BET) family of chromatin reader proteins that bind acetylated histones and regulate gene expression. Pharmacological inhibition of BRD4 by BET inhibitors (BETi) has indicated antitumor activity against multiple cancer types. We show that BRD4 is essential for the repair of DNA double-strand breaks (DSBs) and mediates the formation of oncogenic gene rearrangements by engaging the non-homologous end joining (NHEJ) pathway. Mechanistically, genome-wide DNA breaks are associated with enhanced acetylation of histone H4, leading to BRD4 recruitment, and stable establishment of the DNA repair complex. In support of this, we also show that, in clinical tumor samples, BRD4 protein levels are negatively associated with outcome after prostate cancer (PCa) radiation therapy. Thus, in addition to regulating gene expression, BRD4 is also a central player in the repair of DNA DSBs, with significant implications for cancer therapy. PMID- 29346776 TI - Loss of an Androgen-Inactivating and Isoform-Specific HSD17B4 Splice Form Enables Emergence of Castration-Resistant Prostate Cancer. AB - Castration-resistant prostate cancer (CRPC) requires tumors to engage metabolic mechanisms that allow sustained testosterone and/or dihydrotestosterone to stimulate progression. 17beta-Hydroxysteroid dehydrogenase type 4 (17betaHSD4), encoded by HSD17B4, is thought to inactivate testosterone and dihydrotestosterone by converting them to their respective inert 17-keto steroids. Counterintuitively, HSD17B4 expression increases in CRPC and predicts poor prognosis. Here, we show that, of five alternative splice forms, only isoform 2 encodes an enzyme capable of testosterone and dihydrotestosterone inactivation. In contrast with other transcripts, functional expression of isoform 2 is specifically suppressed in development of CRPC in patients. Genetically silencing isoform 2 shifts the metabolic balance toward 17beta-OH androgens (testosterone and dihydrotestosterone), stimulating androgen receptor (AR) and CRPC development. Our studies specifically implicate HSD17B4 isoform 2 loss in lethal prostate cancer. PMID- 29346777 TI - PRRT2 Regulates Synaptic Fusion by Directly Modulating SNARE Complex Assembly. AB - Mutations in proline-rich transmembrane protein 2 (PRRT2) are associated with a range of paroxysmal neurological disorders. PRRT2 predominantly localizes to the pre-synaptic terminals and is believed to regulate neurotransmitter release. However, the mechanism of action is unclear. Here, we use reconstituted single vesicle and bulk fusion assays, combined with live cell imaging of single exocytotic events in PC12 cells and biophysical analysis, to delineate the physiological role of PRRT2. We report that PRRT2 selectively blocks the trans SNARE complex assembly and thus negatively regulates synaptic vesicle priming. This inhibition is actualized via weak interactions of the N-terminal proline rich domain with the synaptic SNARE proteins. Furthermore, we demonstrate that paroxysmal dyskinesia-associated mutations in PRRT2 disrupt this SNARE-modulatory function and with efficiencies corresponding to the severity of the disease phenotype. Our findings provide insights into the molecular mechanisms through which loss-of-function mutations in PRRT2 result in paroxysmal neurological disorders. PMID- 29346778 TI - Diverse Brain Myeloid Expression Profiles Reveal Distinct Microglial Activation States and Aspects of Alzheimer's Disease Not Evident in Mouse Models. AB - Microglia, the CNS-resident immune cells, play important roles in disease, but the spectrum of their possible activation states is not well understood. We derived co-regulated gene modules from transcriptional profiles of CNS myeloid cells of diverse mouse models, including new tauopathy model datasets. Using these modules to interpret single-cell data from an Alzheimer's disease (AD) model, we identified microglial subsets-distinct from previously reported "disease-associated microglia"-expressing interferon-related or proliferation modules. We then analyzed whole-tissue RNA profiles from human neurodegenerative diseases, including a new AD dataset. Correcting for altered cellular composition of AD tissue, we observed elevated expression of the neurodegeneration-related modules, but also modules not implicated using expression profiles from mouse models alone. We provide a searchable, interactive database for exploring gene expression in all these datasets (http://research pub.gene.com/BrainMyeloidLandscape). Understanding the dimensions of CNS myeloid cell activation in human disease may reveal opportunities for therapeutic intervention. PMID- 29346779 TI - Predictors of Recoverability of Renal Function after Pyeloplasty in Adults with Ureteropelvic Junction Obstruction. AB - BACKGROUND: This study aimed to identify factors predicting the recoverability of renal function after pyeloplasty in adult patients with ureteropelvic junction obstruction. METHODS: We retrospectively reviewed 138 adults with unilateral renal obstruction-induced hydronephrosis and who underwent Anderson-Hynes dismembered pyeloplasty from January 2013 to January 2016. Hydronephrosis was classified preoperatively according to the Society for Fetal Urology (SFU) grading system. All patients underwent Doppler ultrasonography, excretory urography, computed tomography, and technetium-99m-diethylenetriamine pentaacetic acid radioisotope (99mTc DTPA) renography before and after surgery. Renal resistive index (RRI) and 99mTc DTPA renography were repeated at 1, 3, 6, and 12 months. RESULTS: Multivariate analysis identified age, renal pelvic type, SFU grade, preoperative RRI, decline of RRI, and renal parenchyma to hydronephrosis area ratio (PHAR) as independent predictors of renal function recoverability after pyeloplasty. However, preoperative RRI and RRI decline were not significantly associated with recoverability of renal function in patients aged >35 years. Lower preoperative RRI, greater decline in RRI, higher PHAR, lower SFU grade, and extrarenal pelvis were associated with greater improvements in postoperative renal function. CONCLUSIONS: Preoperative differential renal function cannot independently predict the recoverability of postoperative renal function in adult patients with unilateral renal obstruction-induced hydronephrosis. SFU grade, renal pelvic type, PHAR, preoperative RRI, and decline in RRI were significantly associated with the recoverability of renal function in adult patients aged <35 years, while only SFU grade, renal pelvic type, and PHAR were significantly associated with renal function recoverability in patients aged >=35 years. Renal function recovery was better in patients younger than 35 years when compared with older patients. PMID- 29346780 TI - Prevention of Aortic Dissection Suggests a Diameter Shift to a Lower Aortic Size Threshold for Intervention. AB - BACKGROUND: Multiple studies have quantified the relationship between aortic size and risk of dissection. However, these studies estimated the risk of dissection without accounting for any increase in aortic size from the dissection process itself. OBJECTIVES: This study aims to compare aortic size before and after dissection and to evaluate the change in size consequent to the dissection itself. METHODS: Fifty-five consecutive patients (29 type A; 26 type B) with aortic dissection and incidental imaging studies prior to dissection were identified and compared to a control group of aneurysm patients (n = 205). The average time between measurement at and prior to dissection was 1.7 +/- 1.9 years (1.9 +/- 2.0 years mean inter-image time in the control group). A multivariate regression model controlling for growth rate, age, and gender was created to estimate the effect of dissection itself on aortic size. RESULTS: The mean aortic sizes at and prior to dissection were 54.2 +/- 7.0 and 45.1 +/- 5.7 mm for the ascending aorta, and 47.1 +/- 13.8 and 39.5 +/- 13.1 mm for the descending aorta, respectively. The multivariable analysis revealed a significant impact of the dissection itself (p < 0.001) and estimated an increase in size of 7.65 mm (ascending aorta) and 6.38 mm (descending aorta). Thus, a proportional estimate of 82.8% (ascending aorta) and 80.8% (descending aorta) of dissections are made at a size lower than the guideline-recommended threshold (55 mm). CONCLUSIONS: The aortic diameter increases substantially due to aortic dissection itself and, thus, aortas are being dissected at clinically meaningfully smaller sizes than natural history analyses have previously suggested. These findings have important implications regarding the size at which the risk of dissection is increased. PMID- 29346781 TI - Laparoscopic Nephron-Sparing Calycectomy for Treating Fraley's Syndrome. AB - : Background/Aims/Objectives: Various nephron-sparing approaches were described as part of surgical management for Fraley's syndrome, a rare anatomic variant of the renal vascular anatomy that compresses the upper pole infundibulum resulting in an upper calyceal obstruction and dilatation, with symptoms of flank pain and hematuria. To date, descriptions of minimally invasive correction techniques are anecdotal. METHODS: A retroperitoneal pure laparoscopic approach using the nephron-sparing technique was chosen in the presented case. RESULTS: In this report, we demonstrated that if laparoscopic calycectomy is performed without clamping of renal branches, parenchymal ischemia can be completely avoided. Additionally, the preservation of renal tissue surrounding the calyx enables the preservation of the intrasinusal segmental arteries flow, thereby avoiding their accidental closure by hemostatic sutures. CONCLUSIONS: In conclusion, Laparoscopic Nephron-Sparing Calycectomy is a safe and effective surgical procedure for the treatment of Fraley's syndrome. Consistent laparoscopic experience is required before embarking on this kind of surgery. PMID- 29346782 TI - A Fair Chance for Everyone: Total Tumor Volume as a Selection Tool in Liver Transplantation for Hepatocellular Carcinoma. AB - : Total tumor volume (TTV) has been proposed as a more accurate means of selecting patients for liver transplantation (LT) due to hepatocellular carcinoma (HCC). We aim to analyze the role of TTV in a population with a short waiting time on list. METHODS: Analysis of a prospective database of patients submitted to LT for HCC between September 1992 and February 2014. TTV, Milan criteria (MC), UCSF (University of California San Francisco), and "Up to Seven" criteria were calculated both with preoperative imaging exams and histological data. RESULTS: The study population consisted of 231 out of patients. Median waiting time on list was 62.5 days. MC included 187 patients, while TTV <=115 cm3 included 214. Microvascular invasion (HR 2.601, 95% CI 1.529-4.426), MC (HR 1.666, 95% CI 0.990 2.804), UCSF criteria (HR 2.995, 95% CI 1.875-4.875), TTV <=115 cm3 (HR 2.898, 95% CI 1.398-6.007), and "Up to Seven" criteria (HR 2.139, 95% CI 1.353-3.383) proved to be independent factors for prognosis for disease-free survival. CONCLUSIONS: TTV <=115 cm3 may be a useful tool to properly identify the best HCC candidates for LT in a population with a short waiting time on list. TTV gives more patients the opportunity of undergoing LT while maintaining similar rates of tumor recurrence and patient survival. PMID- 29346783 TI - Does [-2]Pro-Prostate Specific Antigen Meet the Criteria to Justify Its Inclusion in the Clinical Decision-Making Process? AB - INTRODUCTION: To assess whether [-2]pro-prostate-specific antigen (p2PSA) meets the criteria to justify its inclusion in a predictive model of prostate cancer (PCa) diagnosis and in the clinical decision-making process. MATERIALS AND METHODS: A total 172 men with total prostate-specific antigen of 2-10 ng/mL underwent measurement of free PSA and p2PSA before prostate biopsy in an observational and prospective study. From these measurements, the Prostate Health Index (PHI) was calculated. Clinical and analytical predictive models were created incorporating PHI. RESULTS: Of 172 men, 72 (42%) were diagnosed with PCa, 33 (46%) of whom were found to be with high-grade disease. PHI score was the most predictive of biopsy outcomes in terms of discriminative ability (area under the curve = 0.79), with an added gain in predictive accuracy of 17%. All the models that incorporated PHI worked better in terms of calibration close to 45 degrees on the slope. In the decision curve analysis, at a threshold probability of 40% we could prevent 82 biopsies, missing only 16 tumors and 5 high-grade tumors. CONCLUSIONS: PHI score is a more discriminant biomarker, has superior calibration and superior net benefit, and provides a higher rate of avoided biopsies; thus, it can be useful for aiding in making a more informed decision for each patient. PMID- 29346784 TI - Surgical Treatment and Chemotherapy of Adult Primary Liver Sarcoma: Experiences from a Single Hospital in China. AB - BACKGROUND: The aim of this study is to improve the preoperative diagnostic accuracy and treatment results by investigating the clinical features and prognosis of primary liver sarcoma (PLS). METHODS: Clinical data, surgical treatments, adjuvant chemotherapy, and prognosis of 17 PLS patients whose diseases were pathologically confirmed were retrospectively analyzed. RESULTS: The main clinical symptoms included epigastric pain in 9 patients, epigastric distention in 7, and loss of appetite in 4; these symptoms were detected during the postoperative follow-up for gastric carcinoma in 1. The resection rate was 64.7% (12/17), including R0 resection in 10 patients and R1 resection in 2, and laparotomy with biopsy in 5. Five patients accepted an adjuvant selective hepatic artery infusion chemotherapy (mitomycin C 16-20 mg+ 5-fluorouracil 5.0 g+ epirubicin 40-50 mg), and 4 accepted adjuvant systemic chemotherapy (vincristin, cisplatin, cyclophosphamide, and adriamycin). All 5 patients with simple laparotomy died within 1 year, and the overall 1-, 3-, and 5-year survival rates for all patients were 58.8% (10/17), 29.4% (5/17) and 11.7% (2/17), respectively, whereas those were 100.0% (10/10), 50.0% (5/10), and 20.0% (2/10) for R0 resected patients respectively. CONCLUSIONS: The diagnosis of PLS is difficult before operation due to its nonspecific manifestations, and the high survival rate can be achieved by radical resection with adjuvant chemotherapy. PMID- 29346785 TI - Impulsivity and Saliva Cortisol in Patients with Suicide Attempt and Controls. AB - OBJECTIVES: The objective of this study was to prove concepts in the characterization of suicidal patients and the possible usefulness of those markers to potentially identify patients with a higher risk for suicidality. METHODS: Patients with a recent suicide attempt were compared with patients suffering from depression, adjustment disorder, anxiety, or eating disorders without suicidality, healthy controls and remitted patients with a history of at least 1 suicide attempt (>=1 year). We analyzed impulsivity (Barratt Impulsivity Scale, BIS) and saliva cortisol concentrations. RESULTS: Independently of suicidality and disease state patients display higher BIS scores than healthy controls. Saliva cortisol levels tend to be higher in patients in the acute disease state than in remitted patients and healthy controls. CONCLUSIONS: Saliva cortisol may be a useful marker that reveals alterations in nonsuicidal patients suffering from depression, adjustment disorder, anxiety, or eating disorders who might be at risk. PMID- 29346786 TI - Changing Trends in Brain Imaging Technique for Pediatric Patients with Ventriculoperitoneal Shunts. AB - BACKGROUND: Children with ventriculoperitoneal shunts (VPS) undergoing brain computed tomography (CT) for shunt malfunction evaluation are at risk for later malignancy due to radiation exposure. We aimed to determine if and how hospitals have adopted radiation-avoiding magnetic resonance imaging (MRI) techniques. METHODS: We performed a secondary analysis of the Pediatric Health Information System (PHIS) database. Children with VPS presenting to acute wards at 31 PHIS hospitals between January 1, 2007 and January 2, 2015 and receiving noncontrast neuroimaging on day of service 0/1 were included. Outcome measures were (1) incidence of MRI over time and (2) comparison of demographic characteristics between hospitals with MRI representing higher versus lower proportions (>15% or <15%) of total brain imaging. RESULTS: MRIs increased by 18.1% from 2007 to 2015. Hospitals were assigned to high-use (n = 12) or minimal-use (n = 19) MRI groups based on year 2014/2015 MRI percentages. The only identified difference was an older mean age in the high-use group (8.1 vs. 7.5 years; p = 0.03). CONCLUSIONS: MRI is increasingly used to evaluate patients with VPS. Hospitals with more MRI use had older patients and no increase in cost or length of stay. Initiating local quality improvement projects may help identify barriers to MRI uptake and increase use. PMID- 29346787 TI - Speech and Communication Changes Reported by People with Parkinson's Disease. AB - BACKGROUND: Changes in communicative functions are common in Parkinson's disease (PD), but there are only limited data provided by individuals with PD on how these changes are perceived, what their consequences are, and what type of intervention is provided. AIM: To present self-reported information about speech and communication, the impact on communicative participation, and the amount and type of speech-language pathology services received by people with PD. METHODS: Respondents with PD recruited via the Swedish Parkinson's Disease Society filled out a questionnaire accessed via a Web link or provided in a paper version. RESULTS: Of 188 respondents, 92.5% reported at least one symptom related to communication; the most common symptoms were weak voice, word-finding difficulties, imprecise articulation, and getting off topic in conversation. The speech and communication problems resulted in restricted communicative participation for between a quarter and a third of the respondents, and their speech caused embarrassment sometimes or more often to more than half. Forty-five percent of the respondents had received speech-language pathology services. CONCLUSIONS: Most respondents reported both speech and language symptoms, and many experienced restricted communicative participation. Access to speech language pathology services is still inadequate. Services should also address cognitive/linguistic aspects to meet the needs of people with PD. PMID- 29346788 TI - Vitamin D: Classic and Novel Actions. AB - BACKGROUND: Classically, vitamin D has been implicated in bone health by promoting calcium absorption in the gut and maintenance of serum calcium and phosphate concentrations, as well as by its action on bone growth and reorganization through the action of osteoblasts and osteoclasts cells. However, in the last 2 decades, novel actions of vitamin D have been discovered. The present report summarizes both classic and novel actions of vitamin D. SUMMARY: 1,25(OH)2 vitamin D, the active metabolite of vitamin D, also known as calcitriol, regulates not only calcium and phosphate homeostasis but also cell proliferation and differentiation, and has a key a role to play in the responses of the immune and nervous systems. Current effects of vitamin D include xenobiotic detoxification, oxidative stress reduction, neuroprotective functions, antimicrobial defense, immunoregulation, anti-inflammatory/anticancer actions, and cardiovascular benefits. The mechanism of action of calcitriol is mediated by the vitamin D receptor, a subfamily of nuclear receptors that act as transcription factors into the target cells after forming a heterodimer with the retinoid X receptor. This kind of receptors has been found in virtually all cell types, which may explain its multiple actions on different tissues. Key Messages: In addition to classic actions related to mineral homeostasis, vitamin D has novel actions in cell proliferation and differentiation, regulation of the innate and adaptative immune systems, preventive effects on cardiovascular and neurodegenerative diseases, and even antiaging effects. PMID- 29346789 TI - Mentalization and Self-Efficacy as Mediators between Psychological Symptom Severity and Disabilities in Activities and Participation in Psychotherapy Patients. AB - BACKGROUND: Psychotherapy patients can be more or less disabled by their psychological symptoms. The present study investigated whether mentalization and self-efficacy contribute to the association between psychological symptom severity and disabilities in activities and participation. METHODS: The data of 216 psychotherapy inpatients were examined in a cross-sectional design. Bootstrapping-enhanced mediation analyses were performed to investigate whether self-efficacy and mentalization are mediators between psychological symptom severity and disabilities in activities and participation. The Hamburg Modules for the Assessment of Psychosocial Health-49 were used to measure psychological symptom severity and self-efficacy, mentalization was assessed with the Mentalization Questionnaire, and disabilities in activities and participation were operationalized with the ICF-Mental-A & P questionnaire. RESULTS: Mentalization as well as self-efficacy functioned as mediators between psychological symptom severity and disabilities in activities and participation (p < 0.05). They were equally strong mediators, and both remained significant mediators when statistically controlling for the other mediator (p < 0.05). CONCLUSIONS: Mentalization as well as self-efficacy explain a significant proportion of the relationship between psychological symptom severity and disabilities in activities and participation. Working on mentalizing and self efficacy might be important mechanisms to reduce disability due to symptoms. The cross-sectional design is a limitation of the study. PMID- 29346790 TI - Multivisceral Resection for Locally Invasive Colorectal Liver Metastases: Outcomes of a Matched Cohort Analysis. AB - : Local invasion of adjacent viscera by colorectal liver metastases (CRLM) is no longer considered an absolute contraindication to curative hepatic resection. A growing number of observational analyses have illustrated the feasibility of such resections; however, the evidence base is at best heterogeneous with a lack of evidence comparing similar patient groups. We aimed to evaluate the outcomes of hepatectomy for CRLM when combined with other viscera and compare to a matched cohort of isolated hepatic resections. METHODS: From 2005 to 2015, 523 patients underwent hepatic resection for CRLM at our institution, 19 of whom underwent hepatectomy with extrahepatic resection. A 3: 1 matched cohort analysis was performed between those who underwent isolated hepatectomy (control group) and those who underwent hepatectomy with extrahepatic resection (combined group). Clinicopathological data were reviewed along with 30-day postoperative morbidity and mortality. Furthermore, overall survival for the multivisceral cohort was compared to all other isolated hepatectomies over the same time period. RESULTS: Nineteen patients underwent liver resection accompanied by either/or diaphragmatic resection (n = 13), major vein resection and reconstruction (n = 5), and visceral resection (n = 3). Maximum tumor size was significantly larger in the combined group (60.58 vs. 15.34 mm p < 0.0001). Postoperative morbidity was similar in both groups (p = 0.41). Following multivisceral resection, 1-, 3- and 5-year survival rates were 75, 56.6, and 25.7% respectively. Overall survival showed no significant difference between combined and control groups (p = 0.78). Similarly, when compared to the total cohort of isolated liver resections (n = 504), no significant difference in overall mortality was noted. CONCLUSION: In patients presenting with concomitant CRLM and extrahepatic extension where R0 margins can be achieved, this present study supports the rationale to proceed to surgery with comparable morbidity and mortality rates to -isolated hepatectomy. PMID- 29346792 TI - Pancreaticoduodenectomy and Outcomes for Groove Pancreatitis. AB - BACKGROUND/AIMS: The operative management of groove pancreatitis (GP) is still a matter of controversy and pancreaticoduodenectomy (PD) can be a high-risk procedure for patients. The aim of this study was to report our 9-year experience of surgical resection for GP and to review relevant literature. METHODS: A retrospective review of patients undergoing pancreatectomy for GP from August 1, 2008, through May 31, 2017 was performed. Patients with clinical, radiologic, and final pathologic confirmation of GP were included. Literature on the current understanding of GP was reviewed. RESULTS: Eight patients from total 449 pancreatectomies met inclusion criteria. Four male and 4 female patients (mean age, 51.9 years; mean body mass index, 25.3) underwent pylorus-preserving pancreatoduodenectomy (3 by laparoscopy and 5 by open approach). Mean (range) operative time and blood loss was 343 (167-525) min and 218 (40-500) mL respectively. Pancreatic fistula and delayed gastric emptying were noted in one patient each. No major complications occurred, but minor complications occurred in 5 (62%) patients. Mean hospital stay was 6.1 (range 3-14) days. At median follow-up of 18.15 (interquartile range 7.25-33.8) months, all patients experienced a resolution of pancreatitis and improvement in symptoms. CONCLUSIONS: PD is a safe procedure for GP. Short-term surgical outcomes are acceptable and long-term outcomes are associated with improved symptom control. PMID- 29346791 TI - Social and Behavioural Determinants of the Difference in Survival among Older Adults in Japan and England. AB - BACKGROUND: A rapidly ageing population presents major challenges to health and social care services. Cross-country comparative studies on survival among older adults are limited. In addition, Japan, the country with the longest life expectancy, is rarely included in these cross-country comparisons. OBJECTIVE: We examined the relative contributions of social and behavioural factors on the differences in survival among older people in Japan and England. METHODS: We used data from the Japan Gerontological Evaluation Study (JAGES; n = 13,176) and the English Longitudinal Study of Ageing (ELSA; n = 5,551) to analyse all-cause mortality up to 9.4 years from the baseline. Applying Laplace regression models, the 15th survival percentile difference was estimated. RESULTS: During the follow up, 31.3% of women and 38.6% of men in the ELSA died, whereas 19.3% of women and 31.3% of men in the JAGES died. After adjusting for age and baseline health status, JAGES participants had longer survival than ELSA participants by 318.8 days for women and by 131.6 days for men. Family-based social relationships contributed to 105.4 days longer survival in JAGES than ELSA men. Fewer friendship-based social relationships shortened the JAGES men's survival by 45.4 days compared to ELSA men. Currently not being a smoker contributed to longer survival for JAGES women (197.7 days) and ELSA men (46.6 days), and having lower BMI reduced the survival of JAGES participants by 129.0 days for women and by 212.2 days for men. CONCLUSION: Compared to participants in England, Japanese older people lived longer mainly because of non-smoking for women and family based social relationships for men. In contrast, a lower rate of underweight, men's better friendship-based social relationships, and a lower smoking rate contributed to survival among participants in England. PMID- 29346793 TI - Epicardial Fat Thickness in Non-Obese Neurologically Impaired Children: Association with Unfavorable Cardiometabolic Risk Profile. AB - BACKGROUND: Cardiovascular risk is reported in disabled children and epicardial fat (EF) is considered an independent predictor of cardiovascular disease (CVD). No data on the EF thickness (EFT) evaluation in disabled children have been published. OBJECTIVE: We investigated EFT in neurologically impaired (NI) children; its relationship with their metabolic profile was also considered. METHODS: Clinical data, body composition estimation, biochemical profile, and ultrasound-measured EFT were performed in 32 disabled patients (12.4 +/- 6.3 years). Pathological parameters were defined using the following criteria: waist circumference >95th percentile, waist to height ratio (WHtR) >0.5, total cholesterol and triglycerides (TG) values >95th percentile, high density lipoprotein cholesterol <5th percentile, fasting blood glucose >100 mg/dL, homeostasis model assessment for insulin resistance (HOMA) >97.5th percentile, and EFT >3.6 mm. RESULTS: EFT values in NI children were higher compared with control group values (p = 0.02). EFT correlated with gender (p < 0.001), age (p = 0.02), pubertal stage (p = 0.04), as well as WHtR (p = 0.03). A correlation between EFT and leptin was also noted (p = 0.04). EFT levels significantly correlated with pathological TG (p = 0.01) and HOMA-IR (p = 0.04). CONCLUSIONS: Higher EFT was observed in NI children compared with controls. EFT values correlated with clinical, metabolic, and endocrinological parameters. Ultrasound measured EFT could be used to promptly detect subclinical CVD and to prevent adverse outcomes in disabled children. PMID- 29346795 TI - Hello, Goodbye! PMID- 29346794 TI - Clinicoepidemiologic Features of Chronic Urticaria in Patients with versus without Subclinical Helicobacter pylori Infection: A Cross-Sectional Study of 150 Patients. AB - BACKGROUND: The Helicobacter pylori infection is linked to chronic urticaria in nearly 60% of patients. We studied clinicoepidemiologic features in patients with chronic urticaria with and without H. pylori infection. METHODS: Endoscopic antral biopsy for the rapid urease test (RUT) and histopathology, and serum IgG ELISA for H. pylori infection were performed in 150 patients (male:female ratio 1:2.4) of chronic urticaria aged 18-68 years. Clinicoepidemiologic features including age, gender, age of onset and duration, frequency and distribution of wheals, urticaria severity score, and systemic symptoms were analyzed in patients with and without H. pylori. The results of serum IgG ELISA for H. pylori were compared with 106 age- and gender-matched healthy adult controls. RESULTS: The RUT in 84 patients (56%), histopathology in 76 patients (50.6%), and H. pylori IgG ELISA in 94 patients (62.6%) were positive. H. pylori IgG ELISA was positive only in 35 (33%) controls, suggesting that chronic urticaria patients were more likely to have asymptomatic H. pylori infection than normal controls. Although not statistically significant, patients with H. pylori had a higher mean urticaria severity score, number of urticaria/angioedema episodes per year, and involvement of more body sites, particularly the scalp, palms, and soles. The constitutional or gastrointestinal symptoms were statistically higher in patients with H. pylori infection than those without it. CONCLUSION: A subset of chronic urticaria patients appears to have asymptomatic H. pylori infection. However, its implications in chronicity, recurrences, the severity of urticaria, other systemic manifestations, and management remains conjectural in view of 33% of controls also having positive H. pylori ELISA and the endemicity of infection in developing countries. PMID- 29346796 TI - Background Factors and Subjective Voice Symptoms in Patients with Acquired Vocal Fold Scarring and Sulcus Vocalis. AB - OBJECTIVE: Vocal fold scarring (VFS) and sulcus vocalis (SV) often result in severe and chronic voice disorders. This study compares subjective voice complaints as rated with the Voice Handicap Index and etiological factors for patients with VFS and SV. PATIENTS AND METHODS: Data were collected from the medical records at the Department of Otorhinolaryngology, Karolinska University Hospital, for 27 VFS patients and 27 SV patients. Descriptive background factors were compared between the groups and data were compared from the Swedish Voice Handicap Index (Sw-VHI) questionnaires. RESULTS: Previous laryngeal surgery/trauma was significantly more common for the patients with VFS. The SV group had significantly more persistent dysphonia since childhood. It was significantly more common to have a non-Germanic language origin among the SV patients. VFS and SV rated high for the total median Sw-VHI scores. The VFS group's total Sw-VHI and the three domain scores were significantly higher compared to the SV group. The physical domain showed a significantly higher score when compared to the functional and emotional domains in the SV cohort and when compared to the emotional domain in the VFS cohort. CONCLUSION: There are significant differences between the VFS group and SV group regarding etiological factors as well as the Sw-VHI. The degree and profile of VHI should be considered when selecting patients and evaluating the result of new treatments for this group of patients. PMID- 29346797 TI - Aortic Size and Aortic Dissection: Does One Size Fit All? PMID- 29346798 TI - Uric Acid in the Follow-Up Determines 30% Decline in Estimated GFR Over 2 Years: a Propensity Score Analysis. AB - BACKGROUND/AIMS: Higher level of serum uric acid (SUA) predicts early entry to dialysis in chronic kidney disease (CKD) patients. However, a short-term effect of SUA remains to be elucidated using a novel surrogate endpoint. METHODS: Japanese CKD stage 3 to 4 patients were retrospectively examined (n= 701). The follow-up level of SUA was estimated as time-averaged uric acid (TA-UA). A propensity score for 6.0, 6.5 or 7.0 mg/dL of TA-UA was respectively calculated using baseline 23 covariates. The time-to-event analysis was performed for 30% decline in estimated GFR over 2 years. RESULTS: Incidence rates over 2 years were 90 of 440 in men and 36 of 261 in women (p = 0.03). Despite the negative result of baseline SUA, stratified Cox regression on the quintiles of the estimated propensity score showed that higher TA-UA of the three thresholds were all significant (crude HR 2.10 to 2.44) even after adjusting for the confounders. Kaplan-Meier analysis after propensity score matching likewise showed worse survival in the patients with the higher TA-UA (HR 3.11 to 4.26). CONCLUSION: Higher SUA increases likelihood of reaching a surrogate endpoint over 2 years. Early intervention for SUA less than 6.0 mg/dL is recommended for slowing CKD progression. PMID- 29346799 TI - Call for Nomination of Members of the International Standing Committee of Human Cytogenomic Nomenclature. PMID- 29346800 TI - Correction: Key differences between 13 KRAS mutation detection technologies and their relevance for clinical practice. AB - [This corrects the article DOI: 10.1136/esmoopen-2017-000235.][This corrects the article DOI: 10.1136/esmoopen-2017-000235.]. PMID- 29346801 TI - Early Gene Expression Profile in Retinal Ganglion Cell Layer After Optic Nerve Crush in Mice. AB - Purpose: Optic nerve crush (ONC) induces retinal ganglion cell (RGC) death, which causes vision loss in glaucoma. To investigate early events leading to apoptosis of RGCs, we performed gene expression analysis of injured retinas in the period before RGC loss. Methods: The temporal changes of gene profiles at 0, 1, and 4 days after ONC were determined by DNA microarray. To verify the gene expression changes in RGCs, we enriched RGCs by laser-captured microdissection and performed real-time RT-PCR of 14 selected genes. In situ localization study was performed by immunohistochemistry. Results: At 1 day and 4 days after ONC, 1423 and 2010 retinal genes were changed compared with 0 day, respectively; these genes were mainly related to apoptotic process, immune process, regulation of cell cycle, and ion transport. RT-PCR analysis revealed that expression levels of Activating transcription factor 3 (Atf3), Lipocalin 2 (Lcn2), and tumor necrosis factor receptor superfamily member 12a (Tnfrsf12a) were remarkably changed in RGC enriched fraction within 4 days postcrush. Immunohistochemical analysis confirmed that all of these genes expressed highly in the ganglion cell layer of crushed retinas. Conclusions: In response to ONC, the expression of apoptotic genes was stimulated soon after crush. Atf3, Lcn2, and Tnfrsf12a might be key molecules responsible for RGC loss in glaucoma. PMID- 29346802 TI - Penetrance of the LHON Mutation m.11778G>A May Depend on Factors Other Than the Haplotype or Heteroplasmy Rate. PMID- 29346803 TI - Author Response: Penetrance of the LHON Mutation m.11778G>A May Depend on Factors Other Than Haplotype or Heteroplasmy Rate. PMID- 29346805 TI - Mesenteric Vessel Patency Following HIFU Therapy in Patients with Locally Invasive Pancreatic Cancer. AB - PURPOSE: To evaluate the effects of HIFU therapy on visceral vessel patency in patients with inoperable locally invasive pancreatic cancer. MATERIALS AND METHODS: 50 pancreatic cancer patients (26 men, 24 women) aged 41 - 82 years (65.0 +/- 10.2) underwent ultrasonography (US) and computed tomography (CT) examinations before and within one day after HIFU treatment, as well as at follow up at six weeks, three months and six months. Evaluation and grading were performed by two experienced independent radiologists according to a classification scheme based on vessel involvement, vessel diameter, patency, and defects in flow. RESULTS: Before HIFU treatment, arterial vessel involvement was noted in 42 patients, venous involvement in 47, and 47 patients presented with both. Superior mesenteric artery occlusion was found in three carcinomas while nearly half of the cases (n = 24) displayed signs of superior mesenteric vein, portal vein, or splenic vein occlusion. High-grade tumor-associated arterial narrowing was seen in ten patients. Despite vessel encasement and partially extensive propagation of collateral vessels, it was possible to safely perform HIFU treatment in all patients without complications. US and CT studies performed within one day after therapy did not show any change in vessel patency in 47 patients (94 %). Follow-up controls at the six-week mark revealed increased vessel narrowing and finally occlusion after six months in 11 patients due to tumor progression. CONCLUSION: This study demonstrates that HIFU treatment can be safely applied to pancreatic cancers enveloping large mesenteric vessels despite vessel narrowing or extensive collateral propagation. Most patients (94 %) did not experience adverse effects regarding vessel patency. PMID- 29346804 TI - Trabodenoson, an Adenosine Mimetic With A1 Receptor Selectivity Lowers Intraocular Pressure by Increasing Conventional Outflow Facility in Mice. AB - Purpose: To evaluate the relationship between the IOP-lowering effect of trabodenoson and the associated structural and functional changes in the trabecular meshwork (TM). Methods: Six independent cohorts of young and aged mice were exposed to three different topical once-a-day formulations of trabodenoson and eyes were compared to those treated with placebo drops. IOP was measured daily just before drug administration using rebound tonometry. Outflow facility was measured in enucleated eyes. Flow patterns and morphology of conventional outflow tissues were monitored using tracer beads and standard histology, respectively. In parallel, three-dimensional human TM tissue constructs (3D-HTM) were grown and used in experiments to test effect of trabodenoson on the expression of collagen IV, fibronectin, matrix metalloproteinase (MMP)-2 and MMP 14 plus MMP-2 activity. Results: Topical administration of trabodenoson significantly lowered IOP on every day tested, up to 7 days. After 2 days of treatment, outflow facility increased by 26% in aged mice and 30% overall (young and aged mice), which was significantly different from vehicle (P < 0.05). Outflow facility was 15% higher than controls after 7 days of treatment (P = 0.07). While gross morphology was not affected by treatment, the intensity of tracer bead distribution increased by day 7 (P = 0.05). Parallel experiments in 3D-HTM showed that trabodenoson treatment significantly increased MMP-2 activity and MMP-14 abundance, while decreasing fibronectin and collagen IV expression. Conclusions: Trabodenoson alters ECM turnover by TM cells and increases conventional outflow facility, which accounts for its ability to lower IOP in young and aged mice. PMID- 29346806 TI - Lithium and Renal Impairment: A Review on a Still Hot Topic. AB - INTRODUCTION: Lithium is established as an effective treatment of mania, of depression in bipolar and unipolar disorder, and in maintenance treatment of these disorders. However, due to the necessity of monitoring and concerns about irreversible adverse effects, in particular renal impairment, after long-term use, lithium might be underutilized. METHODS: This study reviewed 6 large observational studies addressing the risk of impaired renal function associated with lithium treatment and methodological issues impacting interpretation of results. RESULTS: An increased risk of renal impairment associated with lithium treatment is suggested. This increased risk may, at least partly, be a result of surveillance bias. Additionally, the earliest studies pointed toward an increased risk of end-stage renal disease associated with lithium treatment, whereas the later and methodologically most sound studies do not. DISCUSSION: The improved renal outcome found in the more recent lithium studies may be a result of improved monitoring and focus on recommended serum levels (preferentially 0.6-0.8 mmol/L) as compared to poorer renal outcome in studies with patients treated in the 1960s to 1980s. PMID- 29346807 TI - Anti-Angiogenic Activity of Rotenoids from the Stems of Derris trifoliata. AB - The plants in the genus Derris have proven to be a rich source of rotenoids, of which cytotoxic effect against cancer cells seem to be pronounced. However, their effect on angiogenesis playing a crucial role in both cancer growth and metastasis has been seldom investigated. This study aimed at investigating the effect of the eight rotenoids (1: -8: ) isolated from Derris trifoliata stems on three cancer cells and angiogenesis. Among them, 12a-hydroxyrotenone (2: ) exhibited potent inhibition on both cell growth and migration of HCT116 colon cancer cells. Further, anti-angiogenic assay in an ex vivo model was carried out to determine the effect of the isolated rotenoids on angiogenesis. Results revealed that 12a-hydroxyrotenone (2: ) displayed the most potent suppression of microvessel sprouting. The in vitro assay on human umbilical vein endothelial cells was performed to determine whether compound 2: elicits anti-angiogenic effect and its effect was found to occur via suppression of endothelial cells proliferation and tube formation, but not endothelial cells migration. This study provides the first evidence that compound 2: could potently inhibit HCT116 cancer migration and anti-angiogenic activity, demonstrating that 2: might be a potential agent or a lead compound for cancer therapy. PMID- 29346808 TI - ? PMID- 29346809 TI - ? PMID- 29346810 TI - [POEMS Syndrome]. PMID- 29346811 TI - ? PMID- 29346812 TI - ? PMID- 29346813 TI - ? PMID- 29346814 TI - ? PMID- 29346815 TI - ? PMID- 29346816 TI - ? PMID- 29346817 TI - ? PMID- 29346818 TI - ? PMID- 29346819 TI - ? PMID- 29346820 TI - ? PMID- 29346821 TI - ? PMID- 29346822 TI - ? PMID- 29346823 TI - ? PMID- 29346824 TI - Antimicrobial Chemotherapy has a Linear Relationship to the Proportion of Gram Negative Isolates from Pediatric Burn Wounds. AB - : Wound infection in burns is a relevant cause of morbidity and mortality in children. We aimed to determine the relationship between antibacterial chemotherapy and Gram-negative burn wound colonization and infection. All children admitted to the pediatric intensive care unit for burn trauma from June 1, 2005 to January 31, 2013 were included. We obtained 141 wound samples, of which 88 (65.7%) showed growth of Gram-positive bacteria. Treatment with antimicrobial chemotherapy was necessary in 23 (31.1%) patients. The proportion of Gram-negative isolates seems to increase linear from 12.5% (95% confidence interval (CI): 4.4%-28.7%) without antibacterial chemotherapy to 36.8% (95% CI: 25.5%-49.6%) with one to 48.9% (95% CI: 35.3%-62.8%) with 2 antimicrobial agents. The Odds ratio for a Gram-negative isolate, in comparison to patients without antibacterial chemotherapy, increased from 4.083 (95% CI: 1.140-15.961) for one administered substance to 6.708 (95% CI: 1.832-26.786) if 2 or more were used. CONCLUSION: We found that antibacterial chemotherapy seems to facilitate burn wound colonization and results in an increased number of gram-negative isolates from children with burn wounds. PMID- 29346825 TI - Magnetic Resonance Imaging of Articular Cartilage within the Knee. AB - Magnetic resonance imaging (MRI) provides an effective and noninvasive means by which to evaluate articular cartilage within the knee. Existing techniques can be utilized to detect and monitor longitudinal changes in cartilage status due to injury or progression of degenerative disease. Quantitative MRI (qMRI) techniques can provide a metric by which to evaluate the efficacy of cartilage repair techniques and offer insight into the composition of cartilage and cartilage repair tissue. In this review, we provide background on MR signal generation and decay, the utility of morphologic MRI assessment, and qMRI techniques for the biochemical assessment of cartilage (dGEMRIC, T2, T2*, T1rho, sodium, gagCEST). Finally, the description and utility of these qMRI techniques for the evaluation of cartilage repair are discussed. PMID- 29346826 TI - Gastroduodenal intussusception and pylorus obstruction induced by a c-KIT negative gastric gastrointestinal stromal tumor: case report and review of the literature. AB - INTRODUCTION: Gastrointestinal stromal tumors (GISTs) are infrequently reported to cause gastroduodenal intussusception, especially in the cases with complete pylorus obstruction. GISTs comprise only 1 - 3 % of all gastrointestinal tract tumors, and most of them strongly express the c-KIT protein. Approximately 5 % of GISTs show negative staining of c-KIT. CASE PRESENTATION: A 69-year-old man complained of acute abdominal pain accompanied with nausea and vomiting for 6 hours. Emergency endoscopic examination, upper gastroenterography, and computed tomography scan suggested gastroduodenal intussusception and pylorus obstruction induced by a gastric GIST. Laparoscopic exploration and wedge resection of the tumor were performed in the patient. Postoperative histological examination showed a gastric GIST with c-KIT-negative expression. CONCLUSION: Herein, we report the unique findings of a c-KIT-negative gastric GIST presenting with gastroduodenal intussusception and pylorus obstruction. We also reviewed the English language literature of gastroduodenal intussusception induced by GISTs and put our case in the context of the previously reported cases. PMID- 29346827 TI - Efficacy and complications of submucosal tunneling endoscopic resection for upper gastrointestinal submucosal tumors and exploration for influencing factors. AB - BACKGROUND: Submucosal tunneling endoscopic resection (STER) has emerged as a feasible technique for resecting upper gastrointestinal (GI) tract submucosal tumors (SMTs) through natural orifice transluminal endoscopic surgery. STER reduces the risk of postoperative perforation and abdominal infections and promotes rapid wound healing. The aim of this meta-analysis was to evaluate the safety and efficacy of STER for small (<= 3.5 cm) upper GI SMTs and explore the potential factors influencing STER's efficacy and complication rate. METHODS: Comprehensive literature searches were performed to find studies on STER for removal of SMTs. Several English-language databases were searched, including MEDLINE (through PubMed), EMBASE, and the Cochrane Library for the period January 2010 to June 2016. The medical terms "submucosal tunneling endoscopic resection or STER", "upper gastrointestinal", and "submucosal tumors" were used in the search. The primary outcome measures were the pooled estimates of the complete resection and en bloc resection rates. The secondary outcome measure was the pooled estimate of complications. RESULT: Twelve studies including 397 patients and 430 lesions were identified. The pooled estimate of the complete resection rate was 98.1 % (95 % confidence interval [CI]: 95.9 - 99.2 %). The pooled estimate of en bloc resection was 94.9 % (95 % CI: 91.1 - 97.1 %). The pooled estimate of gas-related complications such as pneumoperitoneum and subcutaneous emphysema was 21.5 % (95 % CI: 13.2 - 33.1 %). The pooled estimate of inflammation-related complications including pleural and abdominal effusion was 8.4 % (95 % CI: 5.6 - 12.3 %). Gas-related complications occurred more frequently in the esophagogastric junction than in the stomach. In addition, the pooled estimate of delayed bleeding was 2.2 % (95 % CI: 1.0 - 4.7 %). CONCLUSION: STER appeared to be an extremely effective technique for removing upper GI SMTs originating from the muscularis propria layer. In addition, the very low rate of complications also shows the safety of this technique. Tumor size, infiltration depth, and location may influence the complication rates. PMID- 29346828 TI - Dynamic Posterior Stabilization versus Posterior Lumbar Intervertebral Fusion: A Matched Cohort Study Based on the Spine Tango Registry. AB - PURPOSE: The primary aim of dynamic stabilization is to stabilize the spine and preserve function without overstressing adjacent segments, which is a potential risk of fusion surgery. However, direct comparative analyses of the two approaches are still limited, and little is known about the association of patient-reported outcomes with these treatment options. OBJECTIVE: To compare the clinical outcomes of dynamic posterior stabilization using the DSS Stabilization System (Paradigm Spine, LLC, New York, New York, United States) versus posterior lumbar intervertebral fusion (PLIF) based on data from a spine registry. We hypothesized that patient-reported outcomes of DSS are not inferior to those of PLIF. METHODS: We identified 202 DSS and 269 PLIF patients with lumbar degenerative disease with a minimum 2-year follow-up. A 1:1 propensity score-based matching was applied to balance the groups for various patient characteristics. The primary outcome was the change in the patient-reported Core Outcome Measures Index (COMI; a 0-10 scale) score. RESULTS: The matching resulted in 77 DSS-PLIF pairs (mean age: 67 years; average COMI follow-up: 3.3 years) without residual significant differences in baseline characteristics. The groups showed no difference in improved COMI score (p = 0.69), as well as in back (p = 0.51) and leg pain relief (p = 0.56), blood loss (p = 0.12), and complications (p > 0.15). Fewer repeat surgeries occurred after DSS (p = 0.01). The number of repeat surgeries per 100 observed person-years was 0.8 and 2.9 in DSS and in PLIF patients, respectively. Furthermore, shorter surgery time (p < 0.001) and longer hospital stays (p = 0.03) were observed for DSS cases. CONCLUSION: In a midterm perspective, DSS may be a viable alternative to PLIF because both therapies result in similar COMI score improvement. Advantages of DSS may be shorter duration of surgery and fewer repeat surgeries. However, more than half of DSS patients did not find a match with a PLIF patient, suggesting that the patient profiles may be different. Further multicenter studies are needed to better understand the most appropriate indication for each therapy. PMID- 29346830 TI - Feasibility of Navigable Percutaneous Disk Decompressor (L'DISQ-C) for Cervical Disk Herniation. AB - OBJECTIVE: To assess the procedural efficacy and safety of a Navigable Percutaneous Disk Decompressor (L'DISQ-C) for cervical disk herniation. METHODS: We performed intradiskal decompression on cervical spine specimens from five human cadavers using the L'DISQ-C under C-arm fluoroscopic guidance. We evaluated our success for positioning the navigable wand tip into the target region and recorded temperature variation at various distances from the wand tip in the cervical nucleus pulposus. The histologic effect of plasma decompression was examined microscopically using harvested tissues adjacent to the procedure site. RESULTS: We successfully navigated the tip of the L'DISQ-C into the target region of the posterior cervical disks on the first insertion attempt in all C3 C4 to C6-C7 disks and in 50% of the C2-C3 and C7-T1 disks. The average temperature elevations within the nucleus pulposus ranged from 4.14 +/- 0.08 degrees C to 12.17 +/- 0.76 degrees C at various distances from the wand tip with or without saline infusion. A histologic examination showed only minor denaturation at the marginal border of the procedure tract. CONCLUSION: We effectively navigated the L'DISQ-C wand tip into the posterior target region of six cadaveric cervical disks and performed percutaneous resection of the target disk tissues without significant thermal or structural damage to adjacent tissues. PMID- 29346829 TI - Intraoperative Seizures in Awake Craniotomy for Perirolandic Glioma Resections That Undergo Cortical Mapping. AB - BACKGROUND: Perirolandic motor area gliomas present invasive eloquent region tumors within the precentral gyrus that are difficult to resect without causing neurologic deficits. STUDY AIMS: This study evaluates the role of awake craniotomy and motor mapping on neurologic outcome and extent of resection (EOR) of tumor in the perirolandic motor region. It also analyzes preoperative risk factors for intraoperative seizures. METHODS: We evaluated 57 patients who underwent an awake craniotomy for a perirolandic motor area eloquent region glioma. Patients who had positive mapping (PM) or intraoperative identification of motor regions in the cortex using direct cortical stimulation were compared with patients with no positive motor mapping following direct cortical stimulation and negative mapping (NM). Preoperative risks, intraoperative seizures, perioperative outcomes, tumor characteristics, and EOR were also compared. A logistic regression model was used to evaluate the predictors for intraoperative seizures in this patient cohort. RESULTS: Overall, 33 patients were in the PM cohort; 24 were in the NM cohort. Our study showed an 8.8% incidence of intraoperative seizures during cortical and subcortical mapping for awake craniotomies in the perirolandic motor area, none of which aborted the case. PM patients had significantly more intraoperative and postoperative seizures (15.5% and 30.3%, respectively) compared with the NM patients (0% and 8.3%, respectively; p = 0.046 and 0.044). New transient postoperative motor deficits were found more often in the PM group (51.5%) versus the NM group (12.5%; p = 0.002). A univariate logistic regression showed that PM (odds ratio [OR]: 1.16; 95% confidence interval [CI], 1.01-1.34; p = 0.035) and preoperative tumor volume (OR: 0.998; 95% CI, 0.996-0.999; p = 0.049) were significant predictors for intraoperative seizures in patients with perirolandic gliomas. CONCLUSION: Awake craniotomies in the perirolandic motor region can be safely performed with a similar incidence of intraoperative seizures as reported for the language cortex. PM in this region may increase the likelihood of perioperative seizures or motor deficits compared with NM. Craniotomies that minimize cortical exposure for perirolandic gliomas that may not localize motor regions can still allow for extensive tumor resection with a good postoperative outcome. PMID- 29346831 TI - Postoperative Reduction of Intraventricular Hemorrhage Volume: Single- Versus Dual-Catheter Drainage. AB - BACKGROUND/AIMS: The use of single/dual external ventricular drains (EVD) for reducing intraventricular hemorrhage (IVH) is under investigation. A randomized controlled trial was conducted to compare postoperative reduction of IVH volume using single- and dual-catheter drainage in spontaneous IVH patients. We investigated factors that may influence an effective hematoma volume reduction by EVDs. MATERIALS AND METHODS: The average cerebrospinal fluid (CSF) drainage volumes were analyzed. Computed tomography (CT) scans were performed on admission, 24 hours and 48 hours after EVD placement, and then on days 5 and 8. Patient group 1 was treated with a single EVD; patient group 2 was treated with bilateral EVDs. The IVH volume was calculated in all ventricles. A multivariate analysis was conducted to investigate variables that can influence the extent of hematoma volume reduction with a bilateral EVD. Regression followed by a Pearson correlation was performed to observe the strength of association of cofounders with the IVH volume reduction. RESULTS: The percentage of IVH volume change was found to be significantly higher in the dual-catheter group compared with the single-catheter group (p = 0.0034) after 5 days of EVD. The mean reduction in IVH volume was 17.36 (mL) in patients <= 45 years of age and 20.50 (mL) in patients > 45 years. The multivariate analysis suggested the following significant predictors for IVH volume reduction: age of the patient (p = 0.011) and longer duration (days) of EVD (p = 0.028). The age of the patient had a weak positive association and duration of EVD had a positive association with the IVH volume reduction. CONCLUSION: Intraventricular drainage via bilateral EVDs may provide a better draining of blood-mixed CSF because it led to faster clot clearance. It is suggested that a longer duration of bilateral EVDs may lead to a greater reduction in IVH volume. Older patients may experience a greater IVH volume reduction by EVD because the volume of CSF increases with cerebral atrophy. PMID- 29346832 TI - Diagnosis of Lumbar Spinal Stenosis with Functional Myelography. AB - BACKGROUND AND STUDY AIMS: The diagnosis of a lumbar spinal stenosis demands advanced diagnostic radiologic techniques. In recent decades magnetic resonance imaging (MRI) has replaced myelography, now considered an old-fashioned technique. It was our hypothesis that functional myelography still plays an important role in selected cases. We investigated how our surgical strategy was influenced by the results of MRI, functional myelography, and postmyelography computed tomography (CT) in patients with a lumbar spinal stenosis. METHODS: The sagittal diameters of the lumbar spinal canal were measured from L1 to S1 on patients with lumbar spinal stenosis. MRI, functional myelography, and postmyelography CT were compared in each of the patients. Sensitivity and specificity were calculated in each method. We examined how the surgical strategy was influenced by the results of these different methods. RESULTS: Fifty consecutive patients (21 women and 29 men; mean age: 70 years, [range: 49-86 years]) fulfilled the inclusion criteria. Functional myelography revealed a sensitivity of 0.99, a specificity of 0.79, and a positive predictive value of 0.45. The MRI exhibited a sensitivity of 0.93, a specificity of 0.74, and a positive predictive value of 0.39. Postmyelography CT showed a sensitivity of 0.96, a specificity of 0.75, and a positive predictive value of 0.41. A functional myelography revealed more information than the MRI and resulted in a change in the surgical strategy in 11 of 50 patients (22%) in comparison with the sole results of MRI or a postmyelography CT. CONCLUSIONS: In selected cases with multilevel lumbar spinal stenosis, functional myelography revealed the highest precision in reaching a correct diagnosis. It resulted in a change in the surgical approach in every fifth patient in comparison with the MRI and proved most helpful, especially in elderly patients. PMID- 29346833 TI - Phase 1b Trial of Ficlatuzumab, a Humanized Hepatocyte Growth Factor Inhibitory Monoclonal Antibody, in Combination With Gefitinib in Asian Patients With NSCLC. AB - Hepatocyte growth factor (HGF)/c-Met pathway dysregulation is a mechanism for epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs). Ficlatuzumab (AV-299; SCH 900105), a humanized IgG1 kappa HGF inhibitory monoclonal antibody, prevents HGF/c-Met pathway ligand-mediated activation. This phase 1b study assessed the safety/tolerability, pharmacokinetics/pharmacodynamics, and antitumor activity of ficlatuzumab plus gefitinib in Asian patients with previously treated advanced non-small cell lung cancer (NSCLC). Patients received intravenous ficlatuzumab either 10 mg/kg (cohort 1; n = 3) or 20 mg/kg (cohort 2; n = 12) every 2 weeks plus oral gefitinib 250 mg daily. Patients tolerated the drug combination well. Four treatment-related grade 3/4 adverse events were reported in 3 patients (cohort 2). Pharmacokinetic profiles for ficlatuzumab and gefitinib were consistent with prior single-agent trials. Partial responses were achieved in 5 patients (4 confirmed), all in cohort 2; objective response rate (ORR) was 33% (duration, 1.9 6.4 months). Responding patients had no prior EGFR TKI treatment, 2 without an EGFR mutation. Four additional patients had disease stabilization (cohort 2; duration, 2.7-9.1 months; 42% ORR). The recommended phase 2 dose for ficlatuzumab plus gefitinib 250 mg/day was 20 mg/kg every 2 weeks. This drug combination has shown preliminary dose-related antitumor activity in advanced NSCLC. PMID- 29346834 TI - Twelve-week ravidasvir plus ritonavir-boosted danoprevir and ribavirin for non cirrhotic HCV genotype 1 patients: A phase 2 study. AB - BACKGROUND AND AIM: The need for all-oral hepatitis C virus (HCV) treatments with higher response rates, improved tolerability, and lower pill burden compared with interferon-inclusive regimen has led to the development of new direct-acting antiviral agents. Ravidasvir (RDV) is a second-generation, pan-genotypic NS5A inhibitor with high barrier to resistance. The aim of this phase 2 study (EVEREST study) was to assess the efficacy and safety of interferon-free, 12-week RDV plus ritonavir-boosted danoprevir (DNVr) and ribavirin (RBV) regimen for treatment naive Asian HCV genotype 1 (GT1) patients without cirrhosis. METHODS: A total of 38 treatment-naive, non-cirrhotic adult HCV GT1 patients were enrolled in this multicenter, open-label, single-arm phase 2 study (NCT03020095). All patients received a combination of RDV 200 mg once daily (q.d.) plus DNVr 100 mg/100 mg twice daily (b.i.d.) and oral RBV 1000/1200 mg/day (body weight < 75/>= 75 kg) for 12 weeks. The primary endpoint was the rate of sustained virologic response 12 weeks after the end of treatment (SVR12). RESULTS: Of 38 patients, all (100%) achieved SVR12. During the study, no treatment-related serious adverse events, no patients discontinued treatment due to adverse events, and no deaths were reported. Six of 37 (16%) patients with available sequences had HCV NS5A resistance-associated variants at baseline. All patients (6/6) with baseline NS5A resistance-associated variants achieved SVR12. CONCLUSIONS: Twelve-week RDV and DNVr in combination with RBV for 12 weeks achieves the SVR12 rate of 100% in treatment-naive non-cirrhotic Asian patients with HCV GT1 infection. This interferon-free regimen is also safe and well tolerated. PMID- 29346835 TI - Two citrate transporters coordinately regulate citrate secretion from rice bean root tip under aluminum stress. AB - Aluminum (Al)-induced organic acid secretion from the root apex is an important Al resistance mechanism. However, it remains unclear how plants fine-tune root organic acid secretion which can contribute significantly to the loss of fixed carbon from the plant. Here, we demonstrate that Al-induced citrate secretion from the rice bean root apex is biphasic, consisting of an early phase with low secretion and a later phase of large citrate secretion. We isolated and characterized VuMATE2 as a possible second citrate transporter in rice bean functioning in tandem with VuMATE1, which we previously identified. The time dependent kinetics of VuMATE2 expression correlates well with the kinetics of early phase root citrate secretion. Ectopic expression of VuMATE2 in Arabidopsis resulted in increased root citrate secretion and Al resistance. Electrophysiological analysis of Xenopus oocytes expressing VuMATE2 indicated VuMATE2 mediates anion efflux. However, the expression regulation of VuMATE2 differs from VuMATE1. While a protein translation inhibitor suppressed Al-induced VuMATE1 expression, it releases VuMATE2 expression. Yeast one-hybrid assays demonstrated that a previously identified transcription factor, VuSTOP1, interacts with the VuMATE2 promoter at a GGGAGG cis-acting motif. Thus, we demonstrate that plants adapt to Al toxicity by fine-tuning root citrate secretion with two separate root citrate transport systems. PMID- 29346836 TI - Emergency demand, repeat and frequent presentations by older patients in metropolitan Melbourne: A retrospective cohort study using routinely collected hospital data. AB - OBJECTIVE: To describe patterns for potentially avoidable general practice (PAGP) type and non-PAGP-type ED presentations by older patients during 2008 and 2012. METHODS: Retrospective analysis of ED presentations by patients >=70 years for 2008 and 2012. Metropolitan Melbourne public hospital data were obtained from the Victorian Emergency Minimum Dataset. Outcomes were characteristics of PAGP-type and non-PAGP-type presentations as defined by the Australian Institute of Health and Welfare; numbers and rates per 1000 population >=70 years of repeat (*2 3/year) and frequent (>= *4/year) PAGP-type and non-PAGP-type presentations. RESULTS: The older metropolitan Melbourne population increased by 10.3% between 2008 and 2012, whereas the number of ED presentations increased by 12.7%. The volume of PAGP-type presentations decreased by 2.6%, with declining rates per 1000 population >=70 years of repeat (7.2-6.2) and frequent (0.7-0.4) presentation. In contrast, the volume of non-PAGP-type presentations grew by 15.4%, with increasing repeat (57.6-60.7) and frequent (13.1-14.2) presentation rates per 1000 population >=70 years. The majority (39%) of non-PAGP-type presentations by frequent ED attenders were due to cardiovascular or respiratory problems. CONCLUSION: The rate of repeat and frequent PAGP-type presentations by older people decreased in 2012 compared with 2008, suggesting that initiatives implemented to reduce avoidable presentations may have had an effect. However, an increase in the rate of frequent non-PAGP-type presentations, predominately for acute exacerbation of cardiovascular and respiratory conditions, has important implications for planning future healthcare delivery; hence, the importance of initiatives such as the Health Care Home. PMID- 29346837 TI - A Phase 1, Randomized, Placebo- and Active-Controlled Crossover Study to Determine the Effect of Single-Dose Ertugliflozin on QTc Interval in Healthy Volunteers. AB - Ertugliflozin, a selective sodium-glucose cotransporter-2 inhibitor, is being developed for the treatment of type 2 diabetes mellitus. This randomized, 6 sequence, 3-period crossover study assessed the effect of ertugliflozin (100 mg; supratherapeutic dose) vs placebo and moxifloxacin (400 mg; positive control) on the QT interval corrected for heart rate (QTc) in 42 male or female healthy subjects. Triplicate electrocardiograms were performed predose and serially over 48 hours postdose in each treatment period. The maximum observed least-squares mean (90% CI) difference in QTc using the Fridericia correction (QTcF) between ertugliflozin and placebo was 2.99 (1.68, 4.30) milliseconds, 24 hours postdose, below the 5-millisecond threshold of potential clinical concern. The upper limits of the 2-sided 90% CI were less than 10 milliseconds at all postdose time points. The lower 90% CIs for the least-squares mean QTcF difference between moxifloxacin and placebo were greater than 5 milliseconds at the preselected time points of 2, 3, and 4 hours postdose, establishing study sensitivity. The majority of adverse events were mild in severity. In healthy volunteers, at a supratherapeutic dose of 100 mg, ertugliflozin was not associated with QTc interval prolongation. PMID- 29346839 TI - Prepared for the future. PMID- 29346840 TI - Into the future. PMID- 29346838 TI - First-in-human study to assess the safety, pharmacokinetics and pharmacodynamics of BMS-962212, a direct, reversible, small molecule factor XIa inhibitor in non Japanese and Japanese healthy subjects. AB - AIMS: The aims of the present study were to assess the safety, pharmacokinetics (PK) and pharmacodynamics (PD) of BMS-962212, a first-in-class factor XIa inhibitor, in Japanese and non-Japanese healthy subjects. METHODS: This was a randomized, placebo-controlled, double-blind, sequential, ascending-dose study of 2-h (part A) and 5-day (part B) intravenous (IV) infusions of BMS-962212. Part A used four doses (1.5, 4, 10 and 25 mg h-1 ) of BMS-962212 or placebo in a 6:2 ratio per dose. Part B used four doses (1, 3, 9 and 20 mg h-1 ) enrolling Japanese (n = 4 active, n = 1 placebo) and non-Japanese (n = 4 active, n = 1 placebo) subjects per dose. The PK, PD, safety and tolerability were assessed throughout the study. RESULTS: BMS-962212 was well tolerated; there were no signs of bleeding, and adverse events were mild. In parts A and B, BMS-962212 demonstrated dose proportionality. The mean half-life in parts A and B ranged from 2.04 to 4.94 h and 6.22 to 8.65 h, respectively. Exposure-dependent changes were observed in the PD parameters, activated partial thromboplastin time (aPTT) and factor XI clotting activity (FXI:C). The maximum mean aPTT and FXI:C change from baseline at 20 mg h-1 in part B was 92% and 90%, respectively. No difference was observed in weight-corrected steady-state concentrations, aPTT or FXI:C between Japanese and non-Japanese subjects (P > 0.05). CONCLUSION: BMS-962212 has tolerability, PK and PD properties suitable for investigational use as an acute antithrombotic agent in Japanese or non-Japanese subjects. PMID- 29346841 TI - Granulomatous interstitial nephritis associated with silica. PMID- 29346842 TI - Dapagliflozin associated ketoacidosis: A must know fact for nephrologists. PMID- 29346843 TI - Misdiagnosed as osteosarcoma: Brown tumour in a haemodialysis patient. PMID- 29346844 TI - Conversion of renal abstracts to papers: Published or perished? PMID- 29346845 TI - A New Approach to the Evaluation of Local Muscular Load while Typing on a Keyboard. AB - OBJECTIVE: The aim of this study was to assess the contribution of using keystroke dynamics (KD) in combination with integrated electromyography (iEMG) for the objective evaluation of local muscular load of hands and forearms while typing on a computer keyboard and to compare it with results of the commonly used method. METHOD: Study was performed on 12 subjects. Data were collected using our own application for capturing KD data and using EMG Holter for detecting electromyographic potentials to determine local muscular load. RESULTS: The results of our study revealed that currently used methods for assessment of the workload while typing on a computer keyboard are not entirely accurate. In particular, the real total number of keystrokes performed during processing of a text is significantly higher than the count of characters the text is consisting of. In addition to this count, also the so-called invisible keys, keyboard shortcuts, and especially corrections in the typed text must be taken into consideration. CONCLUSIONS: The results indicated that all probands in our study exceeded the valid hygienic limits for the total amount of the small repetitive movements of the hands and forearms and the total amount of the keyboard typing movements. Most of the probands in our study also exceeded the valid hygienic limit for the highest average time-weighted value of the percent maximum voluntary contraction (%MVC). This implies that the keystroke dynamics method has a great potential to increase the accuracy of evaluation of local muscular load when using the keyboard and thus to improve the existing methodology for investigation of occupational diseases resulting from overload while working on the computer. PMID- 29346846 TI - Legislative Norms to Control Cannabis Use in the Light of Its Prevalence in Czech Republic, Poland, Slovakia, and Hungary. AB - OBJECTIVES: Cannabis control legislation ranks among key measures to prevent social-health impacts of its use. The article qualitatively analyses respective legislation in the Czech Republic, Poland, Slovakia, and Hungary (Visegrad Four, V4) considering level of decriminalisation of cannabis use in relation to current epidemiological situation. METHODS: Qualitative analysis of the cannabis control legislation in V4 countries from 1995 to 2016 focusing on criminal liability, differentiation of cannabis from other illicit substances, definition of a small amount intended for personal use, sentences for possessing and dealership of the drug. Results: Slovakia, Hungary and Poland share similar restrictive legislative approach throughout the studied period. In the Czech Republic, the situation has been different and since 2010 cannabis has been further decriminalised: possession of defined small amount of drug not being under prosecution and milder sentences for cannabis than for other illicit psychoactive substances. RESULTS: Slovakia, Hungary and Poland share similar restrictive legislative approach throughout the studied period. In the Czech Republic, the situation has been different and since 2010 cannabis has been further decriminalised: possession of defined small amount of drug not being under prosecution and milder sentences for cannabis than for other illicit psychoactive substances. CONCLUSION: Although the prevalence of cannabis use among adolescents is the highest in the Czech Republic, partial decriminalisation did not show further increase. Slovakia, Hungary and Poland show different trends in epidemiological situation despite of similar legislative approach. Results indicate that beside legislation other social factors play a role and measures to change attitudes and decrease social tolerance are important. PMID- 29346847 TI - Manner of Death of Older People with Regard to Blood Alcohol Concentration. AB - OBJECTIVE: Alcohol abuse is related to a wide variety of negative health outcomes including mortality in older people. Alcohol abuse in older people is characterised by certain specific features uncommon in general adult population. The main objective of this study was to analyse the autopsy protocols of deceased older people in relation to blood alcohol concentration (BAC), sex, age, and manner of death. As a positive BAC, >0.20 g/kg was accepted. METHODS: The sample consists of 1,012 deceased older people (i.e. aged 65 years and over) selected out of 2,377 autopsied subjects in the period from 2003-2013. Subjects included into the sample were chosen via the proportional sampling method. Data (BAC, sex, age, and manner of death) was recorded in a single structured protocol. Data was evaluated statistically (Kolmogorov-Smirnov two-sample test, Wilcoxon two-sample test, risk ratio). RESULTS: Among older people, there has been a statistically significant correlation of natural death with sex (men died earlier) and with increased BAC (people with positive BAC died earlier). In case of violent death there is a difference in the types of accidents in older people with positive BAC (>0.2 g/kg) and with negative BAC (<=0.2 g/kg). Drowning is more common in older people with positive BAC. CONCLUSIONS: Health campaigns in Europe and the Czech Republic aimed at reducing alcohol consumption mainly deal with young people. Alcohol abuse has an impact on premature mortality even in older people. As shown by this study, older people with positive BAC die significantly earlier. PMID- 29346848 TI - Factors Influencing Suicidal Tendencies of Patients with Diagnosis of Attempted Suicide in Medical History and Potential Prevention of Relapse Prevention. AB - OBJECTIVE: The authors researched the incidence of suicidal thoughts and related factors in 123 patients of the psychiatric ward of the Hospital of Ceske Budejovice with diagnosed attempted suicide in their medical history for the period from January 2013 - June 2015. METHODS: The research was carried out in two stages. At the beginning of the hospitalization, quantitative data collection was implemented using a semi-structured questionnaire, followed by qualitative research conducted with semi-structured phone conversation, based on previous patient's written consent. The research data were statistically processed to obtain information about the character of relations among individual characteristics. To quantify them, the Bayesian Network (BN) was constructed, and to identify relations among individual characteristics, the Hill-Climbing algorithm was used. Before deriving the network, variables were discretized. The network parameters were set based on a data matrix using the maximal plausibility method. RESULTS: The results of analysed set show that the probability of suicidal thoughts is high, achieving a value of 0.750 (0.781 for women and 0.724 for men). If the patient visits a contact centre for drug-addicted persons, the probability of suicidal thoughts decreases to 0.683. If the patient visits a psychotherapist, the values of 0.736 are achieved. If a daily care centre is visited, the estimated risk rises to 0.832 and the probability of the patient repetitively attempting suicide is 0.606. If the interviewed person regularly consumes alcohol, the probable relapse amounts to 0.616. But if the person consumes alcohol from time to time, the probability rises to 0.701. In case of abstinence, the probable relapse decreases to 0.565. CONCLUSIONS: The incidence of suicidal thoughts in observed patients was high, and the amount of risk was influenced by gender, by visiting follow-up care facilities, psychotherapy, and particularly by the frequency of alcohol consumption. Intermittent alcohol consumption is the highest-risk factor in connection with relapsing suicide. In case of psychiatric patients with attempted suicide in their medical history, all verified preventive and therapeutic procedures that can contribute to prevention of relapses should be used within follow-up professional care. Specific approach of the closest social environment, medical literacy of the population and state safety measures are important. PMID- 29346849 TI - Syphilis Resurgence in Belgrade, Serbia, in the New Millennium: An Outbreak in 2014. AB - OBJECTIVE: A worldwide syphilis incidence increase was recorded at the beginning of the new millennium, occurring primarily among men who have sex with men (MSM). The aim of this study was to analyse the epidemiological situation of syphilis in the Belgrade population between 2005 and 2014 and to examine the characteristics of an early syphilis outbreak among MSM in Belgrade in 2014. METHOD: Reporting of syphilis is compulsory in Serbia. Routinely reported data were analysed along with data collected from patients' charts. RESULTS: During the period observed, syphilis incidence increased from 1.07 per 100,000 in 2005 to 4.1 per 100,000 in 2014 (383.2%). From 2005 to 2009, syphilis rates in Belgrade were low, around 1 case per 100,000 people. The first outbreak was registered in 2010. The new incidence increase happened in 2012, and again in 2014 when it was the highest. These incidence changes were registered mainly in men, where the frequency of syphilis was much higher than in women. In 2014, primary syphilis was diagnosed in 20 cases, secondary syphilis in 42, and early latent syphilis in 9 patients. Fifty-seven were MSM, 10 were heterosexual men and 4 were women. Twenty-four cases, all MSM were co-infected with HIV. Majority of patients acquired infection in Belgrade, while in 42/71 cases oral sex was the only risk factor. In comparison with HIV negative, HIV positive syphilis patients were older, more frequently unemployed and MSM. They also more frequently had sex with unknown partners and were diagnosed in the secondary stage of infection. CONCLUSIONS: Study results underline the need for coordinated and expeditious surveillance, partner services, enhanced screening of population at risk, health education, as well as early diagnosis and treatment. PMID- 29346850 TI - Trends in the Minimum Inhibitory Concentrations of Erythromycin, Clarithromycin, Azithromycin, Ciprofloxacin, and Trimethoprim/Sulfamethoxazole for Strains of Bordetella pertussis isolated in the Czech Republic in 1967-2015. AB - OBJECTIVE: The aim of the study was to determine trends in the minimum inhibitory concentrations (MICs) of erythromycin used as first-line therapy and alternative antibiotics against Bordetella pertussis (B. pertussis) strains isolated from patients with whooping cough in the Czech Republic (CR) in three periods from 1967 to 2015. METHODS: In total, 135 isolates from the years 1967-2015 were analysed. The strains were divided into three groups by the year of isolation: 1967-1999 (42 strains), 2004-2010 (43 strains), and 2011-2015 (50 strains). MIC of selected antibiotics (erythromycin, clarithromycin, azithromycin, ciprofloxacin, and trimethoprim/sulfamethoxazole) were obtained by the reference agar dilution method on Bordet Gengou Agar with 15% defibrinated sheep blood. RESULTS: The study set included 70 strains previously tested for MICs of erythromycin and four other antibiotics. In the three study periods, the MICs of the tested antibiotics for B. pertussis were nearly identical. All but a single strain, inhibited by erythromycin at a concentration of 0.03 mg/l, were inhibited by two concentrations of erythromycin and azithromycin (0.06 and 0.125 mg/l). Clarithromycin inhibited the strains from all three study periods at the following concentrations: 0.03, 0.06, and 0.125 mg/l. Any of the 135 strains was inhibited by ciprofloxacin at a single concentration of 0.06 mg/l and by trimethoprim/sulfamethoxazole at three concentrations (0.125, 0.25, and 0.5 mg/l). CONCLUSION: The study set of 135 Czech strains of B. pertussis isolated in 1967-2015 appears to be homogeneous in terms of the MICs for five antimicrobials. The MICs remained in a narrow range of two to three low concentrations; the unimodal distribution of the MICs suggests the absence of resistance mechanisms. The highest MICs of erythromycin, clarithromycin, and azithromycin were equally 0.125 mg/l, that of ciprofloxacin was 0.06 mg/l, and that of trimethoprim/sulfamethoxazole was 0.5 mg/l. Over the study period of 55 years, the MICs of the study antibiotics remained in the same ranges. PMID- 29346851 TI - A Nurse-Led School-Based Sun Protection Programme in Turkey. AB - OBJECTIVE: The aim of this study was to determine the effects of a nurse-led school-based sun protection programme in Turkey. METHODS: A randomized controlled trial was performed at two public schools between February and October 2014. Children with written consent from their parents were screened by nurses for skin type, and 80 children at moderate to high risk for skin cancer were included in the study. The sample was randomized by age, gender and skin type. Stratified and block randomizations were used. The participants were separated into an intervention group (n=40) and control group (n=40). Data were collected using a personal information form and two scales for sun protection behaviour and self efficacy. RESULTS: In the intervention group, the pretest mean score for sun protection behaviour was 19.25+/-5.44 and increased significantly in the posttest assessment (33.05+/-4.23, p<0.001). Self-efficacy scores also increased significantly after the intervention (pretest 20.50+/-6.68, post-test 35.85+/ 4.70, p<0.001). However, there were no significant increases in mean sun protection behaviour or self-efficacy scores in the control group (p>0.05). CONCLUSION: A nurse-led school-based sun protection programme effectively promoted children's self-efficacy and sun protection behaviour. PMID- 29346852 TI - Symptomatic Response of the Elderly with Cardiovascular Disease during a Heat Wave in Slovenia. AB - OBJECTIVE: The aim of this study is to analyse the symptomatic response of elderly people to heat burden and indoor air quality exposure, and to create an index, the basis on which healthcare workers could react and prevent heat-related illnesses when the first symptoms appear. METHODS: The impact of the indoor thermal environment was studied with regards to Humidex and indoor air quality by CO2 concentrations on elderly people's symptomatic response. It was a natural experiment in which two different groups of elderly people (>65 years) were observed: the first group had a diagnosed cardiovascular disease, and the second group did not have the disease. RESULTS: The results show that the expression and aggravation of symptoms are related to an increase of heat burden and low indoor air quality. The symptoms under analysis do not have the same frequency distribution of intensity and, therefore, cannot be interpreted as a single universal symptom index. Instead, two indices must be created separately for both general and specific symptoms. CONCLUSIONS: Healthcare workers should be educated about the interactive influences of the thermal environment and the air quality on health. Unsuitable conditions could be ascertained by the nursing home occupants' symptomatic response. PMID- 29346853 TI - Selected Cardiovascular Risk Markers in Vegetarians and Subjects of General Population. AB - OBJECTIVE: Besides genetic factors there are environmental effects including nutritional habits which can influence the risk of age-related diseases. The aim of the study was to assess the age dependence of selected cardiovascular risk markers in two groups of subjects with different nutritional pattern. METHODS: In 470 long-term vegetarians and 478 subjects of general population the following indicators were measured: total cholesterol, HDL-cholesterol, triacylglycerol, glucose, insulin concentrations, LDL-cholesterol, atherogenic index and insulin resistance IR(HOMA) were also calculated in studied subjects. Obtained data were evaluated according to age decades. RESULTS: Vegetarian vs. non-vegetarian concentrations of total cholesterol, LDL-cholesterol, insulin, and values of atherogenic index and IR(HOMA) were significantly reduced in all age decades. Vegetarian vs. non-vegetarian triacalglycerol concentrations were significantly reduced from 4th-7th decade. Vegetarian average decade values of all lipid parameters were in reference range. In non-vegetarian group, the risk average values of total cholesterol (>5.2 mmol/l) were found from 5th-7th decade, LDL cholesterol (>3.3 mmol/l) in 7th decade and atherogenic index (>4) in 6th-7th decade. In vegetarians vs. non-vegetarians were noted the average decade values for total cholesterol ranging from 4.01-4.59 vs. 4.48-5.67 mmol/l, for triacylglycerols 1.00-1.33 vs. 1.13-1.74 mmol/l, for LDL-cholesterol 2.03-2.58 vs. 2.43-3.49 mmol/l, for atherogenic index 2.72-3.31 vs. 3.05-4.21 and for IR(HOMA) 0.99-1.15 vs. 1.15-1.84. CONCLUSION: Our data show significantly reduced mean age decade values of lipid and non-lipid cardiovascular risk markers in all adult vegetarians. Smaller changes of markers between decades compared to non vegetarians document a protective effect of vegetarian nutrition in prevention of cardiovascular disease. PMID- 29346854 TI - High Participation Rate in Mammography Screening: Experience from Croatia. AB - OBJECTIVE: The aim of the study was to analyse the results of three cycles of mammography screening (MS) in the Croatian National Programme (CNP) for Early Breast Cancer Detection for women aged 50-69 years in the Bjelovar-Bilogora County (BBC) from 2006-2014. METHODS: Data on women aged 50-69 screened during a 9-year period were obtained from the Croatian Cancer Registry and Institute of Public Health reports. Participation rate and performance indicators were examined. RESULTS: The total of 57,428 women were invited to mammography screening in BBC during a 9-year period and 31,402 mammograms in total were performed. The response rate of 84% in BBC was consistently higher than the national average of about 60% reported in 2007, 2013 and 2014. CONCLUSION: The National Programme in BBC has been carried out continuously for nine years with a higher response rate compared with the national average, as a result of additional efforts of the Croatian Institute of Public Health team, as well as good cooperation among all programme stakeholders. It was concluded that to achieve better results in the response of women to screening and consequently reduced mortality from breast cancer is possible through tailored health promotion activities. PMID- 29346855 TI - Do Adolescents with T1DM Differ from Their Peers in Health, Eating Habits and Social Support? AB - OBJECTIVE: The aim of this study was to analyse differences in health, eating habits and social support in adolescents with type 1 diabetes mellitus (T1DM) in comparison to peers with another long-term illness or without any medical condition. METHODS: We used self-reported data from the cross-sectional Health Behaviour in School-aged Children study collected in 2014 among Slovak adolescents as well as data from adolescents with T1DM collected in outpatient settings (11 to 15 years old, N=8,910, 50.3% of boys). Logistic regression models and general linear models were used to analyse differences between adolescents with T1DM and their peers with and without long-term illness in self-rated health, life satisfaction, health complaints, regular breakfast, sweets and soft drink consumption, and perceived support from family, teachers and classmates. RESULTS: Adolescents with T1DM reported worse self-rated health and suffer from more health complaints, but they have lower chance of having breakfast irregularly in comparison to their peers with another long-term illness or without any medical condition. Moreover, compared with their peers, adolescents with T1DM perceived stronger support from teachers and classmates, but weaker support from their family. We did not confirm any differences in life satisfaction, sweets and soft drink consumption between adolescents with T1DM and their peers. CONCLUSIONS: Adolescents with T1DM reported more regular eating habits, no difference in life satisfaction and more social support outside the family in comparison to their peers. However, their worse self-rated health, more health complaints and weaker support from family should be considered in interventions targeting psychosocial adjustment of adolescents with T1DM. PMID- 29346856 TI - Prevalence and Trends of Metabolic Syndrome in Slovakia during the Period of 2003 2012. AB - OBJECTIVE: Metabolic syndrome is a combination of clinical risk factors for cardiovascular disease as well as for diabetes. Metabolic syndrome arises from insulin resistance accompanied with abnormal adipose deposition. The aim of our cross-sectional time trends study was to characterize the prevalence of metabolic syndrome and its five risk determinants among the clients of Health Advice Centres of Regional Public Health Authorities in Slovakia. The study was stratified by gender and age groups during the 10 year period from 2003-2012. METHODS: Prevalence data were estimated in adults and children (>=10 years, N=79,904) from the nationwide electronic database of Health Advice Centres of Regional Public Health Authorities in Slovak Republic "Test of healthy heart" from 2003 to 2012. RESULTS: The overall prevalence of metabolic syndrome was 30.2% in males and 26.6% in females, abdominal obesity was confirmed in 48.3% of males and 53.9% of females. Increased triglyceride level has higher prevalence among males (33.3%) compared to females (24.2%). Blood pressure (BP) values and fasting glucose values were significantly higher in males (58.2%) than females (41.9%). During the 10 year period from 2003 to 2012, we confirmed an increased trend in the age-adjusted prevalence of metabolic syndrome. Abdominal obesity and elevated triglycerides had also increased time trends prevalence in both sexes. The prevalence of people without risk determinants of metabolic syndrome had a time decreasing trend. A surprising finding is a decrease in the proportion of persons with suboptimal HDL-cholesterol. The proportion of people with elevated BP and glucose showed little change during the reporting period. CONCLUSION: The increasing prevalence of metabolic syndrome, abdominal obesity, and elevated triglycerides highlights the urgency of addressing these health problems as a healthcare priority to reduce cardiovascular mortality in the Slovak Republic. PMID- 29346857 TI - Higher Energy Intake Variability as Predisposition to Obesity: Novel Approach Using Interquartile Range. AB - OBJECTIVE: It is known that total energy intake and its distribution during the day influences human anthropometric characteristics. However, possible association between variability in total energy intake and obesity has thus far remained unexamined. This study was designed to establish the influence of energy intake variability of each daily meal on the anthropometric characteristics of obesity. METHODS: A total of 521 individuals of Czech Caucasian origin aged 16-73 years (390 women and 131 men) were included in the study, 7-day food records were completed by all study subjects and selected anthropometric characteristics were measured. The interquartile range (IQR) of energy intake was assessed individually for each meal of the day (as a marker of energy intake variability) and subsequently correlated with body mass index (BMI), body fat percentage (%BF), waist-hip ratio (WHR), and waist circumference (cW). RESULTS: Four distinct models were created using multiple logistic regression analysis and backward stepwise logistic regression. The most precise results, based on the area under the curve (AUC), were observed in case of the %BF model (AUC=0.895) and cW model (AUC=0.839). According to the %BF model, age (p<0.001) and IQR-lunch (p<0.05) seem to play an important prediction role for obesity. Likewise, according to the cW model, age (p<0.001), IQR-breakfast (p<0.05) and IQR-dinner (p <0.05) predispose patients to the development of obesity. The results of our study show that higher variability in the energy intake of key daily meals may increase the likelihood of obesity development. CONCLUSIONS: Based on the obtained results, it is necessary to emphasize the regularity in meals intake for maintaining proper body composition. PMID- 29346859 TI - Professor Vladimir Bencko Celebrates 80th Birthday. PMID- 29346858 TI - Comprehensive Group Therapy of Obesity and Its Impact on Selected Anthropometric and Postural Parameters. AB - OBJECTIVE: Obesity is a multifactorial disease. This non-infectious epidemic has reached pandemic proportions in the 21 century. Posture is a dynamic process referring to an active maintenance of body movement segments against the action of external forces. The aim of the study was to investigate the effect of comprehensive group therapy for obese persons on selected anthropometric and postural parameters. METHODS: The study comprised 53 females with a mean age of 44.5 years (range 29-65 years, standard deviation 9.42 years, median 44 years), who completed a controlled weight loss programme. At the beginning and at the end of the programme, anthropometric parameters (Body Mass Index (BMI), weight and waist circumference) were measured and the posturography tests Limits of Stability (LOS) and Motor Control Test (MCT) were performed using the NeuroCom's SMART EquiTest system. The data were statistically analyzed using R software at a level of significance of 0.05. RESULTS: There were positive changes after the controlled weight loss programme in anthropometric parameters (BMI reduction, with p<0.001; waist circumference reduction, with p<0.001; and weight loss, with p<0.001), postural stability with statistically significant (p<0.05) improvements in both postural activity (LOS test parameters) and reactions (MCT parameters). CONCLUSION: The study showed a statistically significant effect of comprehensive group therapy for obesity in terms of reductions in waist circumference, body weight and BMI, and thus the overall reduction of both cardiovascular and metabolic risks, as well as improved postural skills (activity and reactions). PMID- 29346860 TI - Phase transitions between different spin-glass phases and between different chaoses in quenched random chiral systems. AB - The left-right chiral and ferromagnetic-antiferromagnetic double-spin-glass clock model, with the crucially even number of states q=4 and in three dimensions d=3, has been studied by renormalization-group theory. We find, for the first time to our knowledge, four spin-glass phases, including conventional, chiral, and quadrupolar spin-glass phases, and phase transitions between spin-glass phases. The chaoses, in the different spin-glass phases and in the phase transitions of the spin-glass phases with the other spin-glass phases, with the non-spin-glass ordered phases, and with the disordered phase, are determined and quantified by Lyapunov exponents. It is seen that the chiral spin-glass phase is the most chaotic spin-glass phase. The calculated phase diagram is also otherwise very rich, including regular and temperature-inverted devil's staircases and reentrances. PMID- 29346861 TI - Power series expansions for the planar monomer-dimer problem. AB - We compute the free energy of the planar monomer-dimer model. Unlike the classical planar dimer model, an exact solution is not known in this case. Even the computation of the low-density power series expansion requires heavy and nontrivial computations. Despite the exponential computational complexity, we compute almost three times more terms than were previously known. Such an expansion provides both lower and upper bounds for the free energy and makes it possible to obtain more accurate numerical values than previously possible. We expect that our methods can be applied to other similar problems. PMID- 29346862 TI - Craters produced by explosions in a granular medium. AB - We report on an experimental investigation of craters generated by explosions at the surface of a model granular bed. Following the initial blast, a pressure wave propagates through the bed, producing high-speed ejecta of grains and ultimately a crater. We analyzed the crater morphology in the context of large-scale explosions and other cratering processes. The process was analyzed in the context of large-scale explosions, and the crater morphology was compared with those resulting from other cratering processes in the same energy range. From this comparison, we deduce that craters formed through different mechanisms can exhibit fine surface features depending on their origin, at least at the laboratory scale. Moreover, unlike laboratory-scale craters produced by the impact of dense spheres, the diameter and depth do not follow a 1/4-power-law scaling with energy, rather the exponent observed herein is approximately 0.30, as has also been found in large-scale events. Regarding the ejecta curtain of grains, its expansion obeys the same time dependence followed by shock waves produced by underground explosions. Finally, from experiments in a two dimensional system, the early cavity growth is analyzed and compared to a recent study on explosions at the surface of water. PMID- 29346863 TI - Nucleation of twisted and tubular states in chiral ribbons. AB - Bilayers of chiral molecules can self-assemble into twisted and tubular structures, as was recently shown with chiral molecular constituents such as ssDNA-amphiphiles. I show that the dynamics of the transition between these topologies is driven by a nucleation mechanism that bears a striking formal similarity to that encountered in first-order wetting and dewetting transitions. Exploiting this analogy enables the critical nuclei of the transition to be calculated. PMID- 29346864 TI - Effects of particle-fluid density ratio on the interactions between the turbulent channel flow and finite-size particles. AB - A parallel direct-forcing fictitious domain method is employed to perform fully resolved numerical simulations of turbulent channel flow laden with finite-size particles. The effects of the particle-fluid density ratio on the turbulence modulation in the channel flow are investigated at the friction Reynolds number of 180, the particle volume fraction of 0.84%, and the particle-fluid density ratio ranging from 1 to 104.2. The results show that the variation of the flow drag with the particle-fluid density ratio is not monotonic, with a larger flow drag for the density ratio of 10.42, compared to those of unity and 104.2. A significant drag reduction by the particles is observed for large particle-fluid density ratios during the transient stage, but not at the statistically stationary stage. The intensity of particle velocity fluctuations generally decreases with increasing particle inertia, except that the particle streamwise root-mean-square velocity and streamwise-transverse velocity correlation in the near-wall region are largest at the density ratio of the order of 10. The averaged momentum equations are derived with the spatial averaging theorem and are used to analyze the mechanisms for the effects of the particles on the flow drag. The results indicate that the drag-reduction effect due to the decrease in the fluid Reynolds shear stress is counteracted by the drag-enhancement effect due to the increase in the total particle stress or the interphase drag force for the large particle-inertia case. The sum of the total Reynolds stress and particle inner stress contributions to the flow drag is largest at the density ratio of the order of 10, which is the reason for the largest flow drag at this density ratio. The interphase drag force obtained from the averaged momentum equation (the balance theory) is significantly smaller than (but agrees qualitatively with) that from the empirical drag formula based on the phase averaged slip velocity for large density ratios. For the neutrally buoyant case, the balance theory predicts a positive interphase force on the particles arising from the negative gradient of the particle inner stress, which cannot be predicted by the drag formula based on the phase-averaged slip velocity. In addition, our results show that both particle collision and particle-turbulence interaction play roles in the formation of the inhomogeneous distribution of the particles at the density ratio of the order of 10. PMID- 29346865 TI - Simplification of Markov chains with infinite state space and the mathematical theory of random gene expression bursts. AB - Here we develop an effective approach to simplify two-time-scale Markov chains with infinite state spaces by removal of states with fast leaving rates, which improves the simplification method of finite Markov chains. We introduce the concept of fast transition paths and show that the effective transitions of the reduced chain can be represented as the superposition of the direct transitions and the indirect transitions via all the fast transition paths. Furthermore, we apply our simplification approach to the standard Markov model of single-cell stochastic gene expression and provide a mathematical theory of random gene expression bursts. We give the precise mathematical conditions for the bursting kinetics of both mRNAs and proteins. It turns out that random bursts exactly correspond to the fast transition paths of the Markov model. This helps us gain a better understanding of the physics behind the bursting kinetics as an emergent behavior from the fundamental multiscale biochemical reaction kinetics of stochastic gene expression. PMID- 29346866 TI - Filter method without boundary-value condition for simultaneous calculation of eigenfunction and eigenvalue of a stationary Schrodinger equation on a grid. AB - The paper presents a method for simultaneous computation of eigenfunction and eigenvalue of the stationary Schrodinger equation on a grid, without imposing boundary-value condition. The method is based on the filter operator, which selects the eigenfunction from wave packet at the rate comparable to delta function. The efficacy and reliability of the method are demonstrated by comparing the simulation results with analytical or numerical solutions obtained by using other methods for various boundary-value conditions. It is found that the method is robust, accurate, and reliable. Further prospect of filter method for simulation of the Schrodinger equation in higher-dimensional space will also be highlighted. PMID- 29346867 TI - Two distinct bifurcation routes for delayed optoelectronic oscillators. AB - We investigate the coexistence of low- and high-frequency oscillations in a delayed optoelectronic oscillator. We identify two nearby Hopf bifurcation points exhibiting low and high frequencies and demonstrate analytically how they lead to stable solutions. We then show numerically that these two branches of solutions undergo higher order instabilities as the feedback rate is increased but remain separated in the bifurcation diagram. The two bifurcation routes can be followed independently by either progressively increasing or decreasing the bifurcation parameter. PMID- 29346868 TI - Effective one-dimensional approach to the source reconstruction problem of three dimensional inverse optoacoustics. AB - The direct problem of optoacoustic signal generation in biological media consists of solving an inhomogeneous three-dimensional (3D) wave equation for an initial acoustic stress profile. In contrast, the more defiant inverse problem requires the reconstruction of the initial stress profile from a proper set of observed signals. In this article, we consider an effectively 1D approach, based on the assumption of a Gaussian transverse irradiation source profile and plane acoustic waves, in which the effects of acoustic diffraction are described in terms of a linear integral equation. The respective inverse problem along the beam axis can be cast into a Volterra integral equation of the second kind for which we explore here efficient numerical schemes in order to reconstruct initial stress profiles from observed signals, constituting a methodical progress of computational aspects of optoacoustics. In this regard, we explore the validity as well as the limits of the inversion scheme via numerical experiments, with parameters geared toward actual optoacoustic problem instances. The considered inversion input consists of synthetic data, obtained in terms of the effectively 1D approach, and, more generally, a solution of the 3D optoacoustic wave equation. Finally, we also analyze the effect of noise and different detector-to-sample distances on the optoacoustic signal and the reconstructed pressure profiles. PMID- 29346869 TI - Brownian systems with spatially inhomogeneous activity. AB - We generalize the Green-Kubo approach, previously applied to bulk systems of spherically symmetric active particles [J. Chem. Phys. 145, 161101 (2016)JCPSA60021-960610.1063/1.4966153], to include spatially inhomogeneous activity. The method is applied to predict the spatial dependence of the average orientation per particle and the density. The average orientation is given by an integral over the self part of the Van Hove function and a simple Gaussian approximation to this quantity yields an accurate analytical expression. Taking this analytical result as input to a dynamic density functional theory approximates the spatial dependence of the density in good agreement with simulation data. All theoretical predictions are validated using Brownian dynamics simulations. PMID- 29346870 TI - Nucleation and superstabilization in small systems. AB - Phase transitions are known to present peculiarities in small systems that are related to depletion effects of the ambient phase. Mass conservation affects the conditions of thermodynamic equilibrium between a nucleus of the new phase and the matrix as compared with nucleation in infinite systems. This finite-size effect is known to delay the phase transition but can also impede nucleation in very small systems as it stabilizes the initial state, originally metastable in infinite systems. In this work, we investigate this superstabilization effect in the context of classical nucleation theory in multicomponent solutions and we derive an analytical expression for the system size below which nucleation becomes thermodynamically impossible. Comparing with the exact solution, our simple result is shown to accurately predict the superstabilization effect, and can therefore be used, for instance, as a guideline for the design of novel nanomaterials. PMID- 29346871 TI - Electric-field-induced stretching of surface-tethered polyelectrolytes in a microchannel. AB - We study the stretching of a surface-tethered polyelectrolyte confined between parallel surfaces under the application of a dc electric field. We explore the influence of the electric-field strength, the length of the polyelectrolyte, and the degree of confinement on the conformation of the polyelectrolyte by single molecule experiments and coarse-grained coupled lattice-Boltzmann molecular dynamics simulations. The fractional extension of the polyelectrolyte is found to be a universal function of the product of the applied electric field and the molecular contour length, which is explained by simple scaling arguments. The degree of confinement does not have any significant influence on the stretching. We also confirm that an electrohydrodynamic equivalence principle relating the stretching in an electric field to that in a flow field is applicable. PMID- 29346872 TI - Border-crossing model for the diffusive coarsening of two-dimensional and quasi two-dimensional wet foams. AB - For dry foams, the transport of gas from small high-pressure bubbles to large low pressure bubbles is dominated by diffusion across the thin soap films separating neighboring bubbles. For wetter foams, the film areas become smaller as the Plateau borders and vertices inflate with liquid. So-called "border-blocking" models can explain some features of wet-foam coarsening based on the presumption that the inflated borders totally block the gas flux; however, this approximation dramatically fails in the wet or unjamming limit where the bubbles become close packed spheres and coarsening proceeds even though there are no films. Here, we account for the ever-present border-crossing flux by a new length scale defined by the average gradient of gas concentration inside the borders. We compute that it is proportional to the geometric average of film and border thicknesses, and we verify this scaling by numerical solution of the diffusion equation. We similarly consider transport across inflated vertices and surface Plateau borders in quasi-two-dimensional foams. And we show how the dA/dt=K_{0}(n-6) von Neumann law is modified by the appearance of terms that depend on bubble size and shape as well as the concentration gradient length scales. Finally, we use the modified von Neumann law to compute the growth rate of the average bubble area, which is not constant. PMID- 29346873 TI - Autonomously responsive pumping by a bacterial flagellar forest: A mean-field approach. AB - This study is motivated by a microfluidic device that imparts a magnetic torque on an array of bacterial flagella. Bacterial flagella can transform their helical geometry autonomously in response to properties of the background fluid, which provides an intriguing mechanism allowing their use as an engineered element for the regulation or transport of chemicals in microscale applications. The synchronization of flagellar phase has been widely studied in biological contexts, but here we examine the synchronization of flagellar tilt, which is necessary for effective pumping. We first examine the effects of helical geometry and tilt on the pumping flows generated by a single rotating flagellum. Next, we explore a mean-field model for an array of helical flagella to understand how collective tilt arises and influences pumping. The mean-field methodology allows us to take into account possible phase differences through a time-averaging procedure and to model an infinite array of flagella. We find array separation distances, magnetic field strengths, and rotation frequencies that produce nontrivial self-consistent pumping solutions. For individual flagella, pumping is reversed when helicity or rotation is reversed; in contrast, when collective effects are included, self-consistent tilted pumping solutions become untilted nonpumping solutions when helicity or rotation is reversed. PMID- 29346874 TI - Internal autoresonance in coupled oscillators with slowly decaying frequency. AB - In this work, we study resonance energy transfer from an impulsively loaded strongly nonlinear oscillator to a weakly coupled linear attachment with a slowly time-decaying stiffness. It is shown that even in the absence of external periodic forcing both oscillators may exhibit the resonance phenomenon, with the permanent response enhancement of the linear oscillator and the corresponding response reduction of the nonlinear actuator. This effect is said to be internal autoresonance. The influence of the system parameters on the emergence and stability of autoresonance is investigated both analytically and numerically. PMID- 29346875 TI - Granular temperature measured experimentally in a shear flow by acoustic energy. AB - Granular temperature may control high-speed granular flows, yet it is difficult to measure in laboratory experiments. Here we utilize acoustic energy to measure granular temperature in dense shear flows. We show that acoustic energy captures the anticipated behavior of granular temperature as a function of grain size in quartz sand shear flows. We also find that granular temperature (through its proxy acoustic energy) is nearly linearly proportional to inertial number, and dilation is proportional to acoustic energy raised to the power 0.6+/-0.2. This demonstrates the existence of a relationship between granular temperature and dilation. It is also consistent with previous results on dilation due to externally imposed vibration, thus showing that internally and externally induced vibrations have identical results on granular shear flows. PMID- 29346876 TI - X-ray scattering reveals molecular tilt is an order parameter for the main phase transition in a model biomembrane. AB - Synchrotron diffuse x-ray scattering data reveal a dramatic softening of the molecular tilt modulus K_{theta} of the model biomembrane composed of DMPC lipids as the temperature is lowered towards the main phase transition temperature at T_{M}=24^{?}C. Spontaneous tilt occurs below T_{M}, suggesting that tilt is a symmetry breaking order parameter. Consistent with this hypothesis, it is also found that a different lipid POPS has no spontaneous tilt below its T_{M} at 14^{?}C and correspondingly its tilt modulus did not soften as T_{M} was approached from above. As previously known, the bending modulus K_{C} of DMPC also softens close to T_{M}, but unlike the tilt modulus, K_{C} has a maximum 3^{?} above T_{M}, which also marks the limit of the well-known anomalous swelling regime. Tilt adds a different perspective to our previous understanding of the main phase transition in lipid bilayers. PMID- 29346877 TI - Stable three-dimensional modon soliton in plasmas. AB - We derive the nonlinear equations that describe coupled drift waves and ion acoustic waves in a plasma. We show that when the coupling to ion acoustic waves is negligible, the reduced nonlinear equation is a generalization of the Hasegawa Mima equation to the three-dimensional (3D) case. We find an exact analytical solution of this equation in the form of a 3D soliton drift wave (3D modon). By numerical simulations we study collisions between the modons and show that the collisions can be fully elastic. PMID- 29346878 TI - Publisher's Note: Golf-course and funnel energy landscapes: Protein folding concepts in martensites [Phys. Rev. E 95, 063003 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.95.063003. PMID- 29346879 TI - Phase behavior of binary and polydisperse suspensions of compressible microgels controlled by selective particle deswelling. AB - We investigate the phase behavior of suspensions of poly(N-isopropylacrylamide) (pNIPAM) microgels with either bimodal or polydisperse size distribution. We observe a shift of the fluid-crystal transition to higher concentrations depending on the polydispersity or the fraction of large particles in suspension. Crystallization is observed up to polydispersities as high as 18.5%, and up to a number fraction of large particles of 29% in bidisperse suspensions. The crystal structure is random hexagonal close-packed as in monodisperse pNIPAM microgel suspensions. We explain our experimental results by considering the effect of bound counterions. Above a critical particle concentration, these cause deswelling of the largest microgels, which are the softest, changing the size distribution of the suspension and enabling crystal formation in conditions where incompressible particles would not crystallize. PMID- 29346880 TI - Emergence and detailed structure of terraced surfaces produced by oblique incidence ion sputtering. AB - We study the nanoscale terraced topographies that arise when a solid surface is bombarded with a broad ion beam that has a relatively high angle of incidence theta. We find that the surface is not completely flat between the regions in which the surface slope changes rapidly with position: Instead, small-amplitude ripples propagate along the surface. Our analytical work on these ripples yields their propagation velocity as well as the scaling behavior of their amplitude. Our simulations establish that the surfaces exhibit interrupted coarsening, i.e., the characteristic width and height of the surface disturbance grow for a time but ultimately asymptote to finite values as the fully terraced state develops. In addition, as theta is reduced, the surface can undergo a transition from a terraced morphology that changes little with time as it propagates over the surface to an unterraced state that appears to exhibit spatiotemporal chaos. For different ranges of the parameters, our equation of motion produces unterraced topographies that are remarkably similar to those seen in various experiments, including pyramidal structures that are elongated along the projected beam direction and isolated lenticular depressions. PMID- 29346881 TI - Coda reconstruction from cross-correlation of a diffuse field on thin elastic plates. AB - This study contributes to the evaluation of the robustness and accuracy of Green's function reconstruction from cross-correlation of strongly dispersed reverberated signals, with disentangling of the respective roles of ballistic and reverberated ("coda") contributions. We conduct a suite of experiments on a highly reverberating thin duralumin plate, where an approximately diffuse flexural wave field is generated by taking advantage of the plate reverberation and wave dispersion. A large number of impulsive sources that cover the whole surface of the plate are used to validate ambient-noise theory through comparison of the causal and anticausal (i.e., positive- and negative-time) terms of the cross-correlation to one another and to the directly measured Green's function. To quantify the contribution of the ballistic and coda signals, the cross correlation integral is defined over different time windows of variable length, and the accuracy of the reconstructed Green's function is studied as a function of the initial and end times of the integral. We show that even cross correlations measured over limited time windows converge to a significant part of the Green's function. Convergence is achieved over a wide time window, which includes not only direct flexural-wave arrivals, but also the multiply reverberated coda. We propose a model, based on normal-mode analysis, that relates the similarity between the cross-correlation and the Green's function to the statistical properties of the plate. We also determine quantitatively how incoherent noise degrades the estimation of the Green's function. PMID- 29346882 TI - Morphological-evolution pathway during phase separation in polymer solutions with highly asymmetrical miscibility gap. AB - Microstructural evolution during thermally induced phase separation in a polymer solution with a highly asymmetrical miscibility gap is analyzed using Flory Huggins thermodynamics and nonlinear Cahn-Hilliard kinetics. Computer simulation results demonstrate that, in contrast to systems with symmetric miscibility gaps, interesting morphological-evolution pathways (MEPs) including cluster-to percolation and percolation-to-cluster transitions are identified. These MEPs are rationalized according to asynchronous evolution of the two product phases. For a highly asymmetric polymer system, the initial solution composition is also found to play a critical role in determining the MEPs. According to the simulation results a map of MEPs in terms of initial solution composition and aging time of phase separation is established to guide future microstructural design in asymmetrical polymer solutions. PMID- 29346883 TI - Force spectroscopy unravels the role of ionic strength on DNA-cisplatin interaction: Modulating the binding parameters. AB - In the present work we have gone a step forward in the understanding of the DNA cisplatin interaction, investigating the role of the ionic strength on the complexes formation. To achieve this task, we use optical tweezers to perform force spectroscopy on the DNA-cisplatin complexes, determining their mechanical parameters as a function of the drug concentration in the sample for three different buffers. From such measurements, we determine the binding parameters and study their behavior as a function of the ionic strength. The equilibrium binding constant decreases with the counterion concentration ([Na]) and can be used to estimate the effective net charge of cisplatin in solution. The cooperativity degree of the binding reaction, on the other hand, increases with the ionic strength, as a result of the different conformational changes induced by the drug on the double-helix when binding under different buffer conditions. Such results can be used to modulate the drug binding to DNA, by appropriately setting the ionic strength of the surrounding buffer. The conclusions drawn provide significant new insights on the complex cooperative interactions between the DNA molecule and the class of platinum-based compounds, much used in chemotherapies. PMID- 29346884 TI - Nonstationary dynamics of encounters: Mean valuable territory covered by a random searcher. AB - Inspired by recent experiments on the organism Caenorhabditis elegans we present a stochastic problem to capture the adaptive dynamics of search in living beings, which involves the exploration-exploitation dilemma between remaining in a previously preferred area and relocating to new places. We assess the question of search efficiency by introducing a new magnitude, the mean valuable territory covered by a Browinan searcher, for the case where each site in the domain becomes valuable only after a random time controlled by a nonhomogeneous rate which expands from the origin outwards. We explore analytically this magnitude for domains of dimensions 1, 2, and 3 and discuss the theoretical and applied (biological) interest of our approach. As the main results here, we (i) report the existence of some universal scaling properties for the mean valuable territory covered as a function of time and (ii) reveal the emergence of an optimal diffusivity which appears only for domains in two and higher dimensions. PMID- 29346885 TI - Theoretical microbial ecology without species. AB - Ecosystems are commonly conceptualized as networks of interacting species. However, partitioning natural diversity of organisms into discrete units is notoriously problematic and mounting experimental evidence raises the intriguing question whether this perspective is appropriate for the microbial world. Here an alternative formalism is proposed that does not require postulating the existence of species as fundamental ecological variables and provides a naturally hierarchical description of community dynamics. This formalism allows approaching the species problem from the opposite direction. While the classical models treat a world of imperfectly clustered organism types as a perturbation around well clustered species, the presented approach allows gradually adding structure to a fully disordered background. The relevance of this theoretical construct for describing highly diverse natural ecosystems is discussed. PMID- 29346886 TI - Predictability of escape for a stochastic saddle-node bifurcation: When rare events are typical. AB - Transitions between multiple stable states of nonlinear systems are ubiquitous in physics, chemistry, and beyond. Two types of behaviors are usually seen as mutually exclusive: unpredictable noise-induced transitions and predictable bifurcations of the underlying vector field. Here, we report a different situation, corresponding to a fluctuating system approaching a bifurcation, where both effects collaborate. We show that the problem can be reduced to a single control parameter governing the competition between deterministic and stochastic effects. Two asymptotic regimes are identified: When the control parameter is small (e.g., small noise), deviations from the deterministic case are well described by the Freidlin-Wentzell theory. In particular, escapes over the potential barrier are very rare events. When the parameter is large (e.g., large noise), such events become typical. Unlike pure noise-induced transitions, the distribution of the escape time is peaked around a value which is asymptotically predicted by an adiabatic approximation. We show that the two regimes are characterized by qualitatively different reacting trajectories with algebraic and exponential divergences, respectively. PMID- 29346887 TI - Time correlation functions in the Lebwohl-Lasher model of liquid crystals. AB - Time correlation functions in the Lebwohl-Lasher model of nematic liquid crystals are studied using theory and molecular dynamics simulations. In particular, the autocorrelation functions of angular momentum and nematic director fluctuations are calculated in the long-wavelength limit. The constitutive relations for the hydrodynamic currents are derived using a standard procedure based on non negativity of the entropy production. The continuity equations are then linearized and solved to calculate the correlation functions. We find that the transverse angular momentum fluctuations are coupled to the director fluctuations and are both propagative. The propagative nature of the fluctuations suppresses the anticipated hydrodynamic long-time tails in the single-particle autocorrelation functions. The fluctuations in the isotropic phase are, however, diffusive, leading to t^{-d/2} long-time tails in d spatial dimensions. The Frank elastic constant measured using the time correlation functions are in good agreement with previously reported results. PMID- 29346888 TI - Critical adsorption profiles around a sphere and a cylinder in a fluid at criticality: Local functional theory. AB - We study universal critical adsorption on a solid sphere and a solid cylinder in a fluid at bulk criticality, where preferential adsorption occurs. We use a local functional theory proposed by Fisher et al. [M. E. Fisher and P. G. de Gennes, C. R. Acad. Sci. Paris Ser. B 287, 207 (1978); M. E. Fisher and H. Au-Yang, Physica A 101, 255 (1980)PHYADX0378-437110.1016/0378-4371(80)90112-0]. We calculate the mean order parameter profile psi(r), where r is the distance from the sphere center and the cylinder axis, respectively. The resultant differential equation for psi(r) is solved exactly around a sphere and numerically around a cylinder. A strong adsorption regime is realized except for very small surface field h_{1}, where the surface order parameter psi(a) is determined by h_{1} and is independent of the radius a. If r considerably exceeds a, psi(r) decays as r^{ (1+eta)} for a sphere and r^{-(1+eta)/2} for a cylinder in three dimensions, where eta is the critical exponent in the order parameter correlation at bulk criticality. PMID- 29346889 TI - Morphological inversion of complex diffusion. AB - Epidemics, neural cascades, power failures, and many other phenomena can be described by a diffusion process on a network. To identify the causal origins of a spread, it is often necessary to identify the triggering initial node. Here, we define a new morphological operator and use it to detect the origin of a diffusive front, given the final state of a complex network. Our method performs better than algorithms based on distance (closeness) and Jordan centrality. More importantly, our method is applicable regardless of the specifics of the forward model, and therefore can be applied to a wide range of systems such as identifying the patient zero in an epidemic, pinpointing the neuron that triggers a cascade, identifying the original malfunction that causes a catastrophic infrastructure failure, and inferring the ancestral species from which a heterogeneous population evolves. PMID- 29346890 TI - Mechanics of active surfaces. AB - We derive a fully covariant theory of the mechanics of active surfaces. This theory provides a framework for the study of active biological or chemical processes at surfaces, such as the cell cortex, the mechanics of epithelial tissues, or reconstituted active systems on surfaces. We introduce forces and torques acting on a surface, and derive the associated force balance conditions. We show that surfaces with in-plane rotational symmetry can have broken up-down, chiral, or planar-chiral symmetry. We discuss the rate of entropy production in the surface and write linear constitutive relations that satisfy the Onsager relations. We show that the bending modulus, the spontaneous curvature, and the surface tension of a passive surface are renormalized by active terms. Finally, we identify active terms which are not found in a passive theory and discuss examples of shape instabilities that are related to active processes in the surface. PMID- 29346891 TI - Discrete-to-continuum modeling of weakly interacting incommensurate chains. AB - In this paper we use a formal discrete-to-continuum procedure to derive a continuum variational model for two chains of atoms with slightly incommensurate lattices. The chains represent a cross section of a three-dimensional system consisting of a graphene sheet suspended over a substrate. The continuum model recovers both qualitatively and quantitatively the behavior observed in the corresponding discrete model. The numerical solutions for both models demonstrate the presence of large commensurate regions separated by localized incommensurate domain walls. PMID- 29346892 TI - Anomalous stress fluctuations in athermal two-dimensional amorphous solids. AB - We numerically study the local stress distribution within athermal, isotropically stressed, mechanically stable, packings of bidisperse frictionless disks above the jamming transition in two dimensions. Considering the Fourier transform of the local stress, we find evidence for algebraically increasing fluctuations in both isotropic and anisotropic components of the stress tensor at small wave numbers, contrary to recent theoretical predictions. Such increasing fluctuations imply a lack of self-averaging of the stress on large length scales. The crossover to these increasing fluctuations defines a length scale l_{0}, however, it appears that l_{0} does not vary much with packing fraction phi, nor does l_{0} seem to be diverging as phi approaches the jamming phi_{J}. We also find similar large length scale fluctuations of stress in the inherent states of a quenched Lennard-Jones liquid, leading us to speculate that such fluctuations may be a general property of amorphous solids in two dimensions. PMID- 29346893 TI - Resuspension threshold of a granular bed by localized heating. AB - The resuspension and dispersion of particles occur in industrial fluid dynamic processes as well as environmental and geophysical situations. In this paper, we experimentally investigate the ability to fluidize a granular bed with a vertical gradient of temperature. Using laboratory experiments with a localized heat source, we observe a large entrainment of particles into the fluid volume beyond a threshold temperature. The buoyancy-driven fluidized bed then leads to the transport of solid particles through the generation of particle-laden plumes. We show that the destabilization process is driven by the thermal conductivity inside the granular bed and demonstrate that the threshold temperature depends on the thickness of the granular bed and the buoyancy number, i.e., the ratio of the stabilizing density contrast to the destabilizing thermal density contrast. PMID- 29346894 TI - Size scaling of failure strength with fat-tailed disorder in a fiber bundle model. AB - We investigate the size scaling of the macroscopic fracture strength of heterogeneous materials when microscopic disorder is controlled by fat-tailed distributions. We consider a fiber bundle model where the strength of single fibers is described by a power law distribution over a finite range. Tuning the amount of disorder by varying the power law exponent and the upper cutoff of fibers' strength, in the limit of equal load sharing an astonishing size effect is revealed: For small system sizes the bundle strength increases with the number of fibers, and the usual decreasing size effect of heterogeneous materials is restored only beyond a characteristic size. We show analytically that the extreme order statistics of fibers' strength is responsible for this peculiar behavior. Analyzing the results of computer simulations we deduce a scaling form which describes the dependence of the macroscopic strength of fiber bundles on the parameters of microscopic disorder over the entire range of system sizes. PMID- 29346895 TI - Levy walks in nonhomogeneous environments. AB - The Levy walk process with rests is discussed. The jumping time is governed by an alpha-stable distribution with alpha>1 while a waiting time distribution is Poissonian and involves a position-dependent rate which reflects a nonhomogeneous trap distribution. The master equation is derived and solved in the asymptotic limit for a power-law form of the jumping rate. The relative density of resting and flying particles appears time-dependent, and the asymptotic form of both distributions obeys a stretched-exponential shape at large time. The diffusion properties are discussed, and it is demonstrated that, due to the heterogeneous trap structure, the enhanced diffusion, observed for the homogeneous case, may turn to a subdiffusion. The density distributions and mean squared displacements are also evaluated from Monte Carlo simulations of individual trajectories. PMID- 29346896 TI - Nonequilibrium thermodynamics with binary quantum correlations. AB - The balance equations for thermodynamic quantities are derived from the nonlocal quantum kinetic equation. The nonlocal collisions lead to molecular contributions to the observables and currents. The corresponding correlated parts of the observables are found to be given by the rate to form a molecule multiplied with its lifetime which can be considered as collision duration. Explicit expressions of these molecular contributions are given in terms of the scattering phase shifts. The two-particle form of the entropy is derived extending the Landau quasiparticle picture by two-particle molecular contributions. There is a continuous exchange of correlation and kinetic energies condensing into the rate of correlated variables for energy and momentum. For the entropy, an explicit gain remains and Boltzmann's H theorem is proved including the molecular parts of the entropy. PMID- 29346897 TI - Quantum Otto engine with exchange coupling in the presence of level degeneracy. AB - We consider a quasistatic quantum Otto cycle using two effectively two-level systems with degeneracy in the excited state. The systems are coupled through isotropic exchange interaction of strength J>0, in the presence of an external magnetic field B which is varied during the cycle. We prove the positive work condition and show that level degeneracy can act as a thermodynamic resource, so that a larger amount of work can be extracted than in the nondegenerate case, both with and without coupling. We also derive an upper bound for the efficiency of the cycle. This bound is the same as derived for a system of coupled spin-1/2 particles [G. Thomas and R. S. Johal, Phys. Rev. E 83, 031135 (2011)PLEEE81539 375510.1103/PhysRevE.83.031135], i.e., without degeneracy, and depends only on the control parameters of the Hamiltonian, being independent of the level degeneracy and the reservoir temperatures. PMID- 29346898 TI - Stochastic Kuramoto oscillators with discrete phase states. AB - We present a generalization of the Kuramoto phase oscillator model in which phases advance in discrete phase increments through Poisson processes, rendering both intrinsic oscillations and coupling inherently stochastic. We study the effects of phase discretization on the synchronization and precision properties of the coupled system both analytically and numerically. Remarkably, many key observables such as the steady-state synchrony and the quality of oscillations show distinct extrema while converging to the classical Kuramoto model in the limit of a continuous phase. The phase-discretized model provides a general framework for coupled oscillations in a Markov chain setting. PMID- 29346899 TI - Formation and relaxation of quasistationary states in particle systems with power law interactions. AB - We explore the formation and relaxation of the so-called quasistationary states (QSS) for particle distributions in three dimensions interacting via an attractive radial pair potential V(r->infinity)~1/r^{gamma} with gamma>0, and either a soft core or hard core regularization at small r. In the first part of the paper, we generalize, for any spatial dimension d>=2, Chandrasekhar's approach for the case of gravity to obtain analytic estimates of the rate of collisional relaxation due to two-body collisions. The resultant relaxation rates indicate an essential qualitative difference depending on the integrability of the pair force at large distances: for gamma>d-1, the rate diverges in the large particle number N (mean-field) limit, unless a sufficiently large soft core is present; for gamma=d-1, the existence of such states will be conditioned strongly on the short-range properties of the interaction. PMID- 29346900 TI - Smoothed particle hydrodynamics study of the roughness effect on contact angle and droplet flow. AB - We employ a pairwise force smoothed particle hydrodynamics (PF-SPH) model to simulate sessile and transient droplets on rough hydrophobic and hydrophilic surfaces. PF-SPH allows modeling of free-surface flows without discretizing the air phase, which is achieved by imposing the surface tension and dynamic contact angles with pairwise interaction forces. We use the PF-SPH model to study the effect of surface roughness and microscopic contact angle on the effective contact angle and droplet dynamics. In the first part of this work, we investigate static contact angles of sessile droplets on different types of rough surfaces. We find that the effective static contact angles of Cassie and Wenzel droplets on a rough surface are greater than the corresponding microscale static contact angles. As a result, microscale hydrophobic rough surfaces also show effective hydrophobic behavior. On the other hand, microscale hydrophilic surfaces may be macroscopically hydrophilic or hydrophobic, depending on the type of roughness. We study the dependence of the transition between Cassie and Wenzel states on roughness and droplet size, which can be linked to the critical pressure for the given fluid-substrate combination. We observe good agreement between simulations and theoretical predictions. Finally, we study the impact of the roughness orientation (i.e., an anisotropic roughness) and surface inclination on droplet flow velocities. Simulations show that droplet flow velocities are lower if the surface roughness is oriented perpendicular to the flow direction. If the predominant elements of surface roughness are in alignment with the flow direction, the flow velocities increase compared to smooth surfaces, which can be attributed to the decrease in fluid-solid contact area similar to the lotus effect. We demonstrate that classical linear scaling relationships between Bond and capillary numbers for droplet flow on flat surfaces also hold for flow on rough surfaces. PMID- 29346901 TI - Method of model reduction and multifidelity models for solute transport in random layered porous media. AB - This work presents a method of model reduction that leads to models with three solutions of increasing fidelity (multifidelity models) for solute transport in a bounded layered porous media with random permeability. The model generalizes the Taylor-Aris dispersion theory to stochastic transport in random layered porous media with a known velocity covariance function. In the reduced model, we represent (random) concentration in terms of its cross-sectional average and a variation function. We derive a one-dimensional stochastic advection-dispersion type equation for the average concentration and a stochastic Poisson equation for the variation function, as well as expressions for the effective velocity and dispersion coefficient. In contrast to the linear scaling with the correlation length and the mean velocity from macrodispersion theory, our model predicts a nonlinear and a quadratic dependence of the effective dispersion on the correlation length and the mean velocity, respectively. We observe that velocity fluctuations enhance dispersion in a nonmonotonic fashion (a stochastic spike phenomenon): The dispersion initially increases with correlation length lambda, reaches a maximum, and decreases to zero at infinity (correlation). Maximum enhancement in dispersion can be obtained at a correlation length about 0.25 the size of the porous media perpendicular to flow. This information can be useful for engineering such random layered porous media. Numerical simulations are implemented to compare solutions with varying fidelity. PMID- 29346902 TI - Transport, diffusion, and energy studies in the Arnold-Beltrami-Childress map. AB - We study the transport and diffusion properties of passive inertial particles described by a six-dimensional dissipative bailout embedding map. The base map chosen for the study is the three-dimensional incompressible Arnold-Beltrami Childress (ABC) map chosen as a representation of volume preserving flows. There are two distinct cases: the two-action and the one-action cases, depending on whether two or one of the parameters (A,B,C) exceed 1. The embedded map dynamics is governed by two parameters (alpha,gamma), which quantify the mass density ratio and dissipation, respectively. There are important differences between the aerosol (alpha<1) and the bubble (alpha>1) regimes. We have studied the diffusive behavior of the system and constructed the phase diagram in the parameter space by computing the diffusion exponents eta. Three classes have been broadly classified-subdiffusive transport (eta<1), normal diffusion (eta~1), and superdiffusion (eta>1) with eta~2 referred to as the ballistic regime. Correlating the diffusive phase diagram with the phase diagram for dynamical regimes seen earlier, we find that the hyperchaotic bubble regime is largely correlated with normal and superdiffusive behavior. In contrast, in the aerosol regime, ballistic superdiffusion is seen in regions that largely show periodic dynamical behaviors, whereas subdiffusive behavior is seen in both periodic and chaotic regimes. The probability distributions of the diffusion exponents show power-law scaling for both aerosol and bubbles in the superdiffusive regimes. We further study the Poincare recurrence times statistics of the system. Here, we find that recurrence time distributions show power law regimes due to the existence of partial barriers to transport in the phase space. Moreover, the plot of average particle kinetic energies versus the mass density ratio for the two action case exhibits a devil's staircase-like structure for higher dissipation values. We explain these results and discuss their implications for realistic systems. PMID- 29346903 TI - Pseudospectral Maxwell solvers for an accurate modeling of Doppler harmonic generation on plasma mirrors with particle-in-cell codes. AB - With the advent of petawatt class lasers, the very large laser intensities attainable on target should enable the production of intense high-order Doppler harmonics from relativistic laser-plasma mirror interactions. At present, the modeling of these harmonics with particle-in-cell (PIC) codes is extremely challenging as it implies an accurate description of tens to hundreds of harmonic orders on a broad range of angles. In particular, we show here that due to the numerical dispersion of waves they induce in vacuum, standard finite difference time domain (FDTD) Maxwell solvers employed in most PIC codes can induce a spurious angular deviation of harmonic beams potentially degrading simulation results. This effect was extensively studied and a simple toy model based on the Snell-Descartes law was developed that allows us to finely predict the angular deviation of harmonics depending on the spatiotemporal resolution and the Maxwell solver used in the simulations. Our model demonstrates that the mitigation of this numerical artifact with FDTD solvers mandates very high spatiotemporal resolution preventing realistic three-dimensional (3D) simulations even on the largest computers available at the time of writing. We finally show that nondispersive pseudospectral analytical time domain solvers can considerably reduce the spatiotemporal resolution required to mitigate this spurious deviation and should enable in the near future 3D accurate modeling on supercomputers in a realistic time to solution. PMID- 29346904 TI - Extracting oscillating components from nonstationary time series: A wavelet induced method. AB - This paper consists in the description and application of a method called wavelet induced mode extraction (WIME) in the context of time-frequency analysis. WIME aims to extract the oscillating components that build amplitude modulated frequency modulated signals. The essence of this technique relies on the successive extractions of the dominant ridges of wavelet-based time-frequency representations of the signal under consideration. Our tests on simulated examples indicate strong decomposition and reconstruction skills, trouble-free handling of crossing trajectories in the time-frequency plane, sharp performances in frequency detection in the case of mode-mixing problems, and a natural tolerance to noise. These results are compared with those obtained with empirical mode decomposition. We also show that WIME still gives meaningful results with real-life data, namely, the Oceanic Nino Index. PMID- 29346905 TI - Predicting Escherichia coli's chemotactic drift under exponential gradient. AB - Bacterial species are known to show chemotaxis, i.e., the directed motions in the presence of certain chemicals, whereas the motion is random in the absence of those chemicals. The bacteria modulate their run time to induce chemotactic drift towards the attractant chemicals and away from the repellent chemicals. However, the existing theoretical knowledge does not exhibit a proper match with experimental validation, and hence there is a need for developing alternate models and validating experimentally. In this paper a more robust theoretical model is proposed to investigate chemotactic drift of peritrichous Escherichia coli under an exponential nutrient gradient. An exponential gradient is used to understand the steady state behavior of drift because of the logarithmic functionality of the chemosensory receptors. Our theoretical estimations are validated through the experimentation and simulation results. Thus, the developed model successfully delineates the run time, run trajectory, and drift velocity as measured from the experiments. PMID- 29346906 TI - Smoothed particle hydrodynamics method for evaporating multiphase flows. AB - The smoothed particle hydrodynamics (SPH) method has been increasingly used for simulating fluid flows; however, its ability to simulate evaporating flow requires significant improvements. This paper proposes an SPH method for evaporating multiphase flows. The present SPH method can simulate the heat and mass transfers across the liquid-gas interfaces. The conservation equations of mass, momentum, and energy were reformulated based on SPH, then were used to govern the fluid flow and heat transfer in both the liquid and gas phases. The continuity equation of the vapor species was employed to simulate the vapor mass fraction in the gas phase. The vapor mass fraction at the interface was predicted by the Clausius-Clapeyron correlation. An evaporation rate was derived to predict the mass transfer from the liquid phase to the gas phase at the interface. Because of the mass transfer across the liquid-gas interface, the mass of an SPH particle was allowed to change. Alternative particle splitting and merging techniques were developed to avoid large mass difference between SPH particles of the same phase. The proposed method was tested by simulating three problems, including the Stefan problem, evaporation of a static drop, and evaporation of a drop impacting a hot surface. For the Stefan problem, the SPH results of the evaporation rate at the interface agreed well with the analytical solution. For drop evaporation, the SPH result was compared with the result predicted by a level-set method from the literature. In the case of drop impact on a hot surface, the evolution of the shape of the drop, temperature, and vapor mass fraction were predicted. PMID- 29346907 TI - Fast electrons generated by quasistatic electric fields of a fs-laser-pulse induced plasma. AB - We present a new acceleration mechanism for electrons taking place during the interaction of an ultrashort, nonrelativistic laser pulse with a plasma generated at the surface of a solid density target. In our experiments, the plasma is created by a laser pulse with femtosecond duration and an energy of about 1 mJ focused to intensities of above 10^{17}W/cm^{2}. We observe that the electron energies acquired by this mechanism exceed the ponderomotive potential of the laser by an order of magnitude. This result was reproduced and quantitatively confirmed by particle-in-cell simulations, which further revealed that the observed electron acceleration is based on quasistatic electric fields caused by the space charges of ponderomotively preaccelerated electrons. This acceleration process is examined in more detail by a simplified numerical model, which allows a qualitative explanation of the final electron energies. PMID- 29346908 TI - Mechanisms of self-organized criticality in social processes of knowledge creation. AB - In online social dynamics, a robust scale invariance appears as a key feature of collaborative efforts that lead to new social value. The underlying empirical data thus offers a unique opportunity to study the origin of self-organized criticality (SOC) in social systems. In contrast to physical systems in the laboratory, various human attributes of the actors play an essential role in the process along with the contents (cognitive, emotional) of the communicated artifacts. As a prototypical example, we consider the social endeavor of knowledge creation via Questions and Answers (Q&A). Using a large empirical data set from one of such Q&A sites and theoretical modeling, we reveal fundamental characteristics of SOC by investigating the temporal correlations at all scales and the role of cognitive contents to the avalanches of the knowledge-creation process. Our analysis shows that the universal social dynamics with power-law inhomogeneities of the actions and delay times provides the primary mechanism for self-tuning towards the critical state; it leads to the long-range correlations and the event clustering in response to the external driving by the arrival of new users. In addition, the involved cognitive contents (systematically annotated in the data and observed in the model) exert important constraints that identify unique classes of the knowledge-creation avalanches. Specifically, besides determining a fine structure of the developing knowledge networks, they affect the values of scaling exponents and the geometry of large avalanches and shape the multifractal spectrum. Furthermore, we find that the level of the activity of the communities that share the knowledge correlates with the fluctuations of the innovation rate, implying that the increase of innovation may serve as the active principle of self-organization. To identify relevant parameters and unravel the role of the network evolution underlying the process in the social system under consideration, we compare the social avalanches to the avalanche sequences occurring in the field-driven physical model of disordered solids, where the factors contributing to the collective dynamics are better understood. PMID- 29346909 TI - Random matrices and the New York City subway system. AB - We analyze subway arrival times in the New York City subway system. We find regimes where the gaps between trains are well modeled by (unitarily invariant) random matrix statistics and Poisson statistics. The departure from random matrix statistics is captured by the value of the Coulomb potential along the subway route. This departure becomes more pronounced as trains make more stops. PMID- 29346910 TI - Dynamics-dependent synchronization in on-chip coupled semiconductor lasers. AB - Synchronization properties of chaotic dynamics in two mutually coupled semiconductor lasers with optical feedback embedded in a photonic integrated circuit are investigated from the point of view of their dynamical content. A phenomenon in which the two lasers can show qualitatively different synchronization properties according to the frequency range of investigation and their nonlinear dynamics is identified and termed dynamics-dependent synchronization. In-phase synchronization is observed for original signals and antiphase synchronization is observed for low-pass filtered signals in the case where one of the lasers shows chaotic oscillations while the other laser exhibits low-frequency fluctuations dynamics. The experimental conditions causing the synchronization states to vary according to the considered frequency interval are studied and the key roles of asymmetric coupling strength and injection currents are clarified. PMID- 29346911 TI - Avalanche precursors in a frictional model. AB - We present a one-dimensional numerical model based on elastically coupled sliders on a frictional incline of variable tilt. This very simple approach makes it possible to study the precursors to the avalanche and to provide a rationalization of different features that have been observed in experiments. We provide a statistical description of the model leading to master equations describing the state of the system as a function of the angle of inclination. Our central results are the reproduction of large-scale regular events preceding the avalanche, on the one hand, and an analytical approach providing an internal threshold for the outbreak of rearrangements before the avalanche in the system, on the other hand. PMID- 29346912 TI - Wedge wetting by electrolyte solutions. AB - The wetting of a charged wedgelike wall by an electrolyte solution is investigated by means of classical density functional theory. As in other studies on wedge wetting, this geometry is considered as the most simple deviation from a planar substrate, and it serves as a first step toward more complex confinements of fluids. By focusing on fluids containing ions and surface charges, features of real systems are covered that are not accessible within the vast majority of previous theoretical studies concentrating on simple fluids in contact with uncharged wedges. In particular, the filling transition of charged wedges is necessarily of first order, because wetting transitions of charged substrates are of first order and the barrier in the effective interface potential persists below the wetting transition of a planar wall; hence, critical filling transitions are not expected to occur for ionic systems. The dependence of the critical opening angle on the surface charge, as well as the dependence of the filling height, of the wedge adsorption, and of the line tension on the opening angle and on the surface charge are analyzed in detail. PMID- 29346913 TI - Strained-graphene-based highly efficient quantum heat engine operating at maximum power. AB - A strained graphene monolayer is shown to operate as a highly efficient quantum heat engine delivering maximum power. The efficiency and power of the proposed device exceeds that of recent proposals. The reason for these excellent characteristics is that strain enables complete valley separation in transmittance through the device, implying that increasing strain leads to very high Seebeck coefficient as well as lower conductance. In addition, since time reversal symmetry is unbroken in our system, the proposed strained graphene quantum heat engine can also act as a high-performance refrigerator. PMID- 29346914 TI - Noise-induced torus bursting in the stochastic Hindmarsh-Rose neuron model. AB - We study the phenomenon of noise-induced torus bursting on the base of the three dimensional Hindmarsh-Rose neuron model forced by additive noise. We show that in the parametric zone close to the Neimark-Sacker bifurcation, where the deterministic system exhibits rapid tonic spiking oscillations, random disturbances can turn tonic spiking into bursting, which is characterized by the formation of a peculiar dynamical structure resembling that of a torus. This phenomenon is confirmed by the changes in dispersion of random trajectories as well as the power spectral density and interspike intervals statistics. In particular, we show that as noise increases, the system undergoes P and D bifurcations, transitioning from order to chaos. We ultimately characterize the transition from stochastic (tonic) spiking to bursting by stochastic sensitivity functions. PMID- 29346915 TI - Efficient method for estimating the number of communities in a network. AB - While there exist a wide range of effective methods for community detection in networks, most of them require one to know in advance how many communities one is looking for. Here we present a method for estimating the number of communities in a network using a combination of Bayesian inference with a novel prior and an efficient Monte Carlo sampling scheme. We test the method extensively on both real and computer-generated networks, showing that it performs accurately and consistently, even in cases where groups are widely varying in size or structure. PMID- 29346916 TI - Construction of and efficient sampling from the simplicial configuration model. AB - Simplicial complexes are now a popular alternative to networks when it comes to describing the structure of complex systems, primarily because they encode multinode interactions explicitly. With this new description comes the need for principled null models that allow for easy comparison with empirical data. We propose a natural candidate, the simplicial configuration model. The core of our contribution is an efficient and uniform Markov chain Monte Carlo sampler for this model. We demonstrate its usefulness in a short case study by investigating the topology of three real systems and their randomized counterparts (using their Betti numbers). For two out of three systems, the model allows us to reject the hypothesis that there is no organization beyond the local scale. PMID- 29346917 TI - Structural and dynamical characterization of water on the Au (100) and graphene surfaces: A molecular dynamics simulation approach. AB - The positioning, adsorption, and movement of water on substrates is dependent upon the chemical nature and arrangement of the atoms of the surface. Therefore the behavior of water molecules on a substrate is a reflection of properties of the surface. Based on this premise, graphene and gold substrates were chosen to study this subject from a molecular perspective. In this work, the structural and dynamical behaviors of a water nanodroplet on Au (100) and the graphene interfaces have been studied by molecular dynamics simulation. The results have shown how the structural and dynamical behaviors of water molecules at the interface reflect the characteristics of these surfaces. The results have demonstrated that residence time and hydrogen bonds' lifetime at the water-Au (100) interface are bigger than at the water-graphene interface. Energy contour map analysis indicates a more uniform surface energy on graphene than on the gold surface. The obtained results illustrate that water clusters on gold and graphene form tetramer and hexamer structures, respectively. Furthermore, the water molecules are more ordered on the gold surface than on graphene. The study of hydrogen bonds showed that the order, stability, and the number of hydrogen bonds is higher on the gold surface. The positioning pattern of water molecules is also similar to the arrangement of gold atoms while no regularity was observed on graphene. The study of dynamical behavior of water molecules revealed that the movement of water on gold is much less than on graphene which is in agreement with the strong water-gold interaction in comparison to the water-graphene interaction. PMID- 29346918 TI - Random walk to describe diffusion phenomena in three-dimensional discontinuous media: Step-balance and fictitious-velocity corrections. AB - In this paper, we show that diffusion phenomena in three-dimensional discontinuous media can be described as a random walk by two simple interface correction methods, namely step-balance and fictitious-velocity corrections, which are completely different in a physical picture but equivalent in that the continuity of the random walk at interfaces is considered. In both corrections, asymmetric interface permeability of a random walker, which comes from ensuring the continuity, causes apparent confinement of the walker in higher-diffusivity layers for benchmark tests on heat diffusion in two-phase multilayered systems. Effective thermal conductivities (walker diffusivities) computed from the trajectories are in excellent agreement with the series and parallel conduction formulas, indicating the equivalence of the two corrections and the importance of ensuring the continuity of a random walk at interfaces. PMID- 29346919 TI - Balancing building and maintenance costs in growing transport networks. AB - The costs associated to the length of links impose unavoidable constraints to the growth of natural and artificial transport networks. When future network developments cannot be predicted, the costs of building and maintaining connections cannot be minimized simultaneously, requiring competing optimization mechanisms. Here, we study a one-parameter nonequilibrium model driven by an optimization functional, defined as the convex combination of building cost and maintenance cost. By varying the coefficient of the combination, the model interpolates between global and local length minimization, i.e., between minimum spanning trees and a local version known as dynamical minimum spanning trees. We show that cost balance within this ensemble of dynamical networks is a sufficient ingredient for the emergence of tradeoffs between the network's total length and transport efficiency, and of optimal strategies of construction. At the transition between two qualitatively different regimes, the dynamics builds up power-law distributed waiting times between global rearrangements, indicating a point of nonoptimality. Finally, we use our model as a framework to analyze empirical ant trail networks, showing its relevance as a null model for cost constrained network formation. PMID- 29346920 TI - Conditional 1/f^{alpha} noise: From single molecules to macroscopic measurement. AB - We demonstrate that the measurement of 1/f^{alpha} noise at the single molecule or nano-object limit is remarkably distinct from the macroscopic measurement over a large sample. The single-particle measurements yield a conditional time dependent spectrum. However, the number of units fluctuating on the time scale of the experiment is increasing in such a way that the macroscopic measurements appear perfectly stationary. The single-particle power spectrum is a conditional spectrum, in the sense that we must make a distinction between idler and nonidler units on the time scale of the experiment. We demonstrate our results based on stochastic and deterministic models, in particular the well-known approach of superimposed Lorentzians, the blinking quantum dot model, and deterministic dynamics generated by a nonlinear mapping. Our results show that the 1/f^{alpha} spectrum is inherently nonstationary even if the macroscopic measurement completely obscures the underlying time dependence of the phenomena. PMID- 29346921 TI - Orthotropic hydraulic permeability of arrays of parallel cylinders. AB - Approximate analytical methods are presented to calculate the overall orthotropic hydraulic permeability of a flow with low Reynolds number, passing through a bundle of parallel circular cylinders. Two particular distributions are considered: (i) arrays with ordered rectangular lattices and (ii) irregular nonrandom distributions for which the unit cell cross sections are elliptical. The standard unit cell models, originally developed by Happel and Kuwabara for a random distribution of cylinders, are adapted to the case of nonrandom distributions. The drag force on a representative cylinder in a direction perpendicular to its axis is obtained based on the standard unit cell model: the actual unit cell of rectangular or elliptical cross section is replaced with an "equivalent" cylindrical unit cell of diameter equal to the maximum width of the actual unit cell. Using the obtained drag forces and referring back to the original geometry of the unit cell, closed-form approximate expressions for the overall permeabilities in the perpendicular directions are obtained. Numerical comparisons with more sophisticated approaches confirm the good efficiency of the presented approach, especially in the range of low solid volume fraction, i.e., of high porosity. Previous studies have revealed that, for the parallel fluid flow, the variation of permeability with aspect ratio (or in general the lateral arrangement) of parallel cylinders is generally weak. These observations suggest that Happel's model for parallel permeability in a random distribution of cylinders could be a good approximation for parallel permeabilities in nonrandom distributions with the same volume fraction. PMID- 29346922 TI - Effects of viscous heating and wall-fluid interaction energy on rate-dependent slip behavior of simple fluids. AB - Molecular dynamics simulations are used to investigate the rate and temperature dependence of the slip length in thin liquid films confined by smooth, thermal substrates. In our setup, the heat generated in a force-driven flow is removed by the thermostat applied on several wall layers away from liquid-solid interfaces. We found that for both high and low wall-fluid interaction (WFI) energies, the temperature of the fluid phase rises significantly as the shear rate increases. Surprisingly, with increasing shear rate, the slip length approaches a constant value from above for high WFI energies and from below for low WFI energies. The two distinct trends of the rate-dependent slip length are rationalized by examining S(G_{1}), the height of the main peak of the in-plane structure factor of the first fluid layer (FFL) together with D_{WF}, which is the average distance between the wall and FFL. The results of numerical simulations demonstrate that reduced values of the structure factor, S(G_{1}), correlate with the enhanced slip, while smaller distances D_{WF} indicate that fluid atoms penetrate deeper into the surface potential leading to larger friction and smaller slip. Interestingly, at the lowest WFI energy, the combined effect of the increase of S(G_{1}) and decrease of D_{WF} with increasing shear rate results in a dramatic reduction of the slip length. PMID- 29346923 TI - Unifying different interpretations of the nonlinear response in glass-forming liquids. AB - This work aims at reconsidering several interpretations coexisting in the recent literature concerning nonlinear susceptibilities in supercooled liquids. We present experimental results on glycerol and propylene carbonate, showing that the three independent cubic susceptibilities have very similar frequency and temperature dependences, for both their amplitudes and phases. This strongly suggests a unique physical mechanism responsible for the growth of these nonlinear susceptibilities. We show that the framework proposed by two of us [J. P. Bouchaud and G. Biroli, Phys. Rev. B 72, 064204 (2005)PRBMDO1098 012110.1103/PhysRevB.72.064204], where the growth of nonlinear susceptibilities is intimately related to the growth of glassy domains, accounts for all the salient experimental features. We then review several complementary and/or alternative models and show that the notion of cooperatively rearranging glassy domains is a key (implicit or explicit) ingredient to all of them. This paves the way for future experiments, which should deepen our understanding of glasses. PMID- 29346924 TI - Multiclustered chimeras in large semiconductor laser arrays with nonlocal interactions. AB - The dynamics of a large array of coupled semiconductor lasers is studied numerically for a nonlocal coupling scheme. Our focus is on chimera states, a self-organized spatiotemporal pattern of coexisting coherence and incoherence. In laser systems, such states have been previously found for global and nearest neighbor coupling, mainly in small networks. The technological advantage of large arrays has motivated us to study a system of 200 nonlocally coupled lasers with respect to the emerging collective dynamics. Moreover, the nonlocal nature of the coupling allows us to obtain robust chimera states with multiple (in)coherent domains. The crucial parameters are the coupling strength, the coupling phase and the range of the nonlocal interaction. We find that multiclustered chimera states exist in a wide region of the parameter space and we provide quantitative characterization for the obtained spatiotemporal patterns. By proposing two different experimental setups for the realization of the nonlocal coupling scheme, we are confident that our results can be confirmed in the laboratory. PMID- 29346925 TI - Cluster sizes in a classical Lennard-Jones chain. AB - The definitions of breaks and clusters in a one-dimensional chain in equilibrium are discussed. Analytical expressions are obtained for the expected cluster length, , as a function of temperature and pressure in a one-dimensional Lennard-Jones chain. These expressions are compared with results from molecular dynamics simulations. It is found that increases exponentially with beta=1/k_{B}T and with pressure, P in agreement with previous results in the literature. A method is illustrated for using (beta,P) to generate a "phase diagram" for the Lennard-Jones chain. Some implications for the study of heat transport in Lennard-Jones chains are discussed. PMID- 29346926 TI - Convection induced by thermal gradients on thin reaction fronts. AB - We present a thin front model for the propagation of chemical reaction fronts in liquids inside a Hele-Shaw cell or porous media. In this model we take into account density gradients due to thermal and compositional changes across a thin interface. The front separating reacted from unreacted fluids evolves following an eikonal relation between the normal speed and the curvature. We carry out a linear stability analysis of convectionless flat fronts confined in a two dimensional rectangular domain. We find that all fronts are stable to perturbations of short wavelength, but they become unstable for some wavelengths depending on the values of compositional and thermal gradients. If the effects of these gradients oppose each other, we observe a range of wavelengths that make the flat front unstable. Numerical solutions of the nonlinear model show curved fronts of steady shape with convection propagating faster than flat fronts. Exothermic fronts increase the temperature of the fluid as they propagate through the domain. This increment in temperature decreases with increasing speed. PMID- 29346927 TI - Topological inversions in coalescing granular media control fluid-flow regimes. AB - Sintering-or coalescence-of viscous droplets is an essential process in many natural and industrial scenarios. Current physical models of the dynamics of sintering are limited by the lack of an explicit account of the evolution of microstructural geometry. Here, we use high-speed time-resolved x-ray tomography to image the evolving geometry of a sintering system of viscous droplets, and use lattice Boltzmann simulations of creeping fluid flow through the reconstructed pore space to determine its permeability. We identify and characterize a topological inversion, from spherical droplets in a continuous interstitial gas, to isolated bubbles in a continuous liquid. We find that the topological inversion is associated with a transition in permeability-porosity behavior, from Stokes permeability at high porosity, to percolation theory at low porosity. We use these findings to construct a unified physical description that reconciles previously incompatible models for the evolution of porosity and permeability during sintering. PMID- 29346928 TI - Signatures of classical structures in the leading eigenstates of quantum dissipative systems. AB - By analyzing a paradigmatic example of the theory of dissipative systems-the classical and quantum dissipative standard map-we are able to explain the main features of the decay to the quantum equilibrium state. The classical isoperiodic stable structures typically present in the parameter space of these kinds of systems play a fundamental role. In fact, we have found that the period of stable structures that are near in this space determines the phase of the leading eigenstates of the corresponding quantum superoperator. Moreover, the eigenvectors show a strong localization on the corresponding periodic orbits (limit cycles). We show that this sort of scarring phenomenon (an established property of Hamiltonian and projectively open systems) is present in the dissipative case and it is of extreme simplicity. PMID- 29346929 TI - Numerical estimation of structure constants in the three-dimensional Ising conformal field theory through Markov chain uv sampler. AB - Herdeiro and Doyon [Phys. Rev. E 94, 043322 (2016)2470 004510.1103/PhysRevE.94.043322] introduced a numerical recipe, dubbed uv sampler, offering precise estimations of the conformal field theory (CFT) data of the planar two-dimensional (2D) critical Ising model. It made use of scale invariance emerging at the critical point in order to sample finite sublattice marginals of the infinite plane Gibbs measure of the model by producing holographic boundary distributions. The main ingredient of the Markov chain Monte Carlo sampler is the invariance under dilation. This paper presents a generalization to higher dimensions with the critical 3D Ising model. This leads to numerical estimations of a subset of the CFT data-scaling weights and structure constants-through fitting of measured correlation functions. The results are shown to agree with the recent most precise estimations from numerical bootstrap methods [Kos, Poland, Simmons-Duffin, and Vichi, J. High Energy Phys. 08 (2016) 03610.1007/JHEP08(2016)036]. PMID- 29346930 TI - Proxy-equation paradigm: A strategy for massively parallel asynchronous computations. AB - Massively parallel simulations of transport equation systems call for a paradigm change in algorithm development to achieve efficient scalability. Traditional approaches require time synchronization of processing elements (PEs), which severely restricts scalability. Relaxing synchronization requirement introduces error and slows down convergence. In this paper, we propose and develop a novel "proxy equation" concept for a general transport equation that (i) tolerates asynchrony with minimal added error, (ii) preserves convergence order and thus, (iii) expected to scale efficiently on massively parallel machines. The central idea is to modify a priori the transport equation at the PE boundaries to offset asynchrony errors. Proof-of-concept computations are performed using a one dimensional advection (convection) diffusion equation. The results demonstrate the promise and advantages of the present strategy. PMID- 29346931 TI - Equation-based model for the stock market. AB - We propose a stock market model which is investigated in the forms of difference and differential equations whose variables correspond to the demand or supply of each agent and to the price. In the model, agents are driven by the behavior of their trust contact network as well by fundamental analysis. By means of the deterministic version of the model, the connection between such drive mechanisms and the price is analyzed: imitation behavior promotes market instability, finitude of resources is associated to stock index stability, and high sensitivity to the fair price provokes price oscillations. Long-range correlations in the price temporal series and heavy-tailed distribution of returns are observed for the version of the model which considers different proposals for stochasticity of microeconomic and macroeconomic origins. PMID- 29346932 TI - Gap-junction coupling and ATP-sensitive potassium channels in human beta-cell clusters: Effects on emergent dynamics. AB - The importance of gap-junction coupling between beta cells in pancreatic islets is well established in mouse. Such ultrastructural connections synchronize cellular activity, confine biological heterogeneity, and enhance insulin pulsatility. Dysfunction of coupling has been associated with diabetes and altered beta-cell function. However, the role of gap junctions between human beta cells is still largely unexplored. By using patch-clamp recordings of beta cells from human donors, we previously estimated electrical properties of these channels by mathematical modeling of pairs of human beta cells. In this work we revise our estimate by modeling triplet configurations and larger heterogeneous clusters. We find that a coupling conductance in the range 0.005-0.020 nS/pF can reproduce experiments in almost all the simulated arrangements. We finally explore the consequence of gap-junction coupling of this magnitude between beta cells with mutant variants of the ATP-sensitive potassium channels involved in some metabolic disorders and diabetic conditions, translating studies performed on rodents to the human case. Our results are finally discussed from the perspective of therapeutic strategies. In summary, modeling of more realistic clusters with more than two beta cells slightly lowers our previous estimate of gap-junction conductance and gives rise to patterns that more closely resemble experimental traces. PMID- 29346933 TI - Internal temperature of quantum chaotic systems at the nanoscale. AB - The extent to which a temperature can be appropriately assigned to a small quantum system, as an internal property but not as a property of any large environment, is still an open problem. In this paper, a method is proposed for solving this problem, by which a studied small system is coupled to a two-level system as a probe, the latter of which can be measured by measurement devices. A main difficulty in the determination of possible temperature of the studied system comes from the back-action of the probe-system coupling to the system. For small quantum chaotic systems, we show that a temperature can be determined, the value of which is sensitive to neither the form, location, and strength of the probe-system coupling, nor the Hamiltonian and initial state of the probe. The temperature thus obtained turns out to have the form of Boltzmann temperature. PMID- 29346934 TI - Kardar-Parisi-Zhang modes in d-dimensional directed polymers. AB - We define a stochastic lattice model for a fluctuating directed polymer in d>=2 dimensions. This model can be alternatively interpreted as a fluctuating random path in two dimensions, or a one-dimensional asymmetric simple exclusion process with d-1 conserved species of particles. The deterministic large dynamics of the directed polymer are shown to be given by a system of coupled Kardar-Parisi-Zhang (KPZ) equations and diffusion equations. Using nonlinear fluctuating hydrodynamics and mode coupling theory we argue that stationary fluctuations in any dimension d can only be of KPZ type or diffusive. The modes are pure in the sense that there are only subleading couplings to other modes, thus excluding the occurrence of modified KPZ-fluctuations or Levy-type fluctuations, which are common for more than one conservation law. The mode-coupling matrices are shown to satisfy the so-called trilinear condition. PMID- 29346935 TI - Chase-and-run dynamics in cell motility and the molecular rupture of interacting active elastic dimers. AB - Cell migration in morphogenesis and cancer metastasis typically involves interplay between different cell types. We construct and study a minimal, one dimensional model composed of two different motile cells with each cell represented as an active elastic dimer. The interaction between the two cells via cadherins is modeled as a spring that can rupture beyond a threshold force as it undergoes dynamic loading from the interacting motile cells. We obtain a phase diagram consisting of chase-and-run dynamics and clumping dynamics as a function of the stiffness of the interaction spring and the threshold force and, therefore, posit that active rupture, or rupture via active forces, is a mechanosensitive means to regulate dynamics between cells. Since the parameters in the model differentiate between N- and E-cadherins, we make predictions for the interactions between a placodelike cell and a neural crestlike cell in a microchannel as well as discuss how our results inform chase-and-run dynamics found in a group of placode cells interacting with a group of neural crest cells. In particular, an argument was made in the latter case that the feedback between cadherins and cell-substrate interaction via integrins was necessary to obtain the chase-and-run behavior. Based on our two-cell results, we argue that this feedback accentuates, but is not necessary for, the chase-and-run behavior. PMID- 29346936 TI - Accessibility and delay in random temporal networks. AB - In a wide range of complex networks, the links between the nodes are temporal and may sporadically appear and disappear. This temporality is fundamental to analyzing the formation of paths within such networks. Moreover, the presence of the links between the nodes is a random process induced by nature in many real world networks. In this paper, we study random temporal networks at a microscopic level and formulate the probability of accessibility from a node i to a node j after a certain number of discrete time units T. While solving the original problem is computationally intractable, we provide an upper and two lower bounds on this probability for a very general case with arbitrary time-varying probabilities of the links' existence. Moreover, for a special case where the links have identical probabilities across the network at each time slot, we obtain the exact probability of accessibility between any two nodes. Finally, we discuss scenarios where the information regarding the presence and absence of links is initially available in the form of time duration (of presence or absence intervals) continuous probability distributions rather than discrete probabilities over time slots. We provide a method for transforming such distributions to discrete probabilities, which enables us to apply the given bounds in this paper to a broader range of problem settings. PMID- 29346937 TI - Uhlenbeck-Ford model: Phase diagram and corresponding-states analysis. AB - Using molecular dynamics simulations and nonequilibrium thermodynamic-integration techniques we compute the Helmholtz free energies of the body-centered-cubic (bcc), face-centered-cubic (fcc), hexagonal close-packed, and fluid phases of the Uhlenbeck-Ford model (UFM) and use the results to construct its phase diagram. The pair interaction associated with the UFM is characterized by an ultrasoft, purely repulsive pair potential that diverges logarithmically at the origin. We find that the bcc and fcc are the only thermodynamically stable crystalline phases in the phase diagram. Furthermore, we report the existence of two reentrant transition sequences as a function of the number density, one featuring a fluid-bcc-fluid succession and another displaying a bcc-fcc-bcc sequence near the triple point. We find strong resemblances to the phase behavior of other soft, purely repulsive systems such as the Gaussian-core model (GCM), inverse power-law, and Yukawa potentials. In particular, we find that the fcc-bcc-fluid triple point and the phase boundaries in its vicinity are in good agreement with the prediction supplied by a recently proposed corresponding-states principle [J. Chem. Phys. 134, 241101 (2011)JCPSA60021-960610.1063/1.3605659; Europhys. Lett. 100, 66004 (2012)EULEEJ0295-507510.1209/0295-5075/100/66004]. The particularly strong resemblance between the behavior of the UFM and GCM models are also discussed. PMID- 29346938 TI - Equilibrium position of a rigid sphere in a turbulent jet: A problem of elastic reconfiguration. AB - The position of floating spheres trapped within an immersed turbulent water jet is investigated. Using the self-similarity properties of the jet velocity profile, the equilibrium problem is formulated in a rescaled space where the sphere is static and deformable. This approach is found to be related to a problem of elastic reconfiguration where elasticity arises here from the geometry of the flow instead of an actual deformation of a body. PMID- 29346939 TI - Promoting information diffusion through interlayer recovery processes in multiplex networks. AB - For information diffusion in multiplex networks, the effect of interlayer contagion on spreading dynamics has been explored in different settings. Nevertheless, the impact of interlayer recovery processes, i.e., the transition of nodes to stiflers in all layers after they become stiflers in any layer, still remains unclear. In this paper, we propose a modified ignorant-spreader-stifler model of rumor spreading equipped with an interlayer recovery mechanism. We find that the information diffusion can be effectively promoted for a range of interlayer recovery rates. By combining the mean-field approximation and the Markov chain approach, we derive the evolution equations of the diffusion process in two-layer homogeneous multiplex networks. The optimal interlayer recovery rate that achieves the maximal enhancement can be calculated by solving the equations numerically. In addition, we find that the promoting effect on a certain layer can be strengthened if information spreads more extensively within the counterpart layer. When applying the model to two-layer scale-free multiplex networks, with or without degree correlation, similar promoting effect is also observed in simulations. Our work indicates that the interlayer recovery process is beneficial to information diffusion in multiplex networks, which may have implications for designing efficient spreading strategies. PMID- 29346940 TI - Advective superdiffusion in superhydrophobic microchannels. AB - We consider pressure-driven flows in wide microchannels, and discuss how a transverse shear, generated by misaligned superhydrophobic walls, impacts cross sectional spreading of Brownian particles. We show that such a transverse shear can induce an advective superdiffusion, which strongly enhances dispersion of particles compared to a normal diffusion, and that maximal cross-sectional spreading corresponds to a crossover between its subballistic and superballistic regimes. This allows us to argue that an advective superdiffusion can be used for boosting dispersion of particles at smaller Peclet numbers compared to known concepts of passive microfluidic mixing. This implies that our superdiffusion scenario allows one efficient mixing of much smaller particles or using much thinner microchannels than methods, which are currently being exploited. PMID- 29346941 TI - Phase transition in the singularity spectrum of an intermingled basin. AB - A two-dimensional piecewise linear mapping is introduced as a solvable model to characterize the multifractal structure of an intermingled basin. To this end, we make use of the multifractal formalism and introduce a partition function. The singularity spectrum, which characterizes local scaling property of the intermingled basin, is then determined. We have found that if the system is not symmetric, the singularity spectrum of either basin shows a phase transition, corresponding to the existence of two phases the orbits experience in the system, i.e., local one governed by the chaotic motions on the chaotic attractor, and the other global one reflecting nonhyperbolic motions characteristic of the intermingled basin. PMID- 29346942 TI - Transitions in optimal adaptive strategies for populations in fluctuating environments. AB - Biological populations are subject to fluctuating environmental conditions. Different adaptive strategies can allow them to cope with these fluctuations: specialization to one particular environmental condition, adoption of a generalist phenotype that compromises between conditions, or population-wise diversification (bet hedging). Which strategy provides the largest selective advantage in the long run depends on the range of accessible phenotypes and the statistics of the environmental fluctuations. Here, we analyze this problem in a simple mathematical model of population growth. First, we review and extend a graphical method to identify the nature of the optimal strategy when the environmental fluctuations are uncorrelated. Temporal correlations in environmental fluctuations open up new strategies that rely on memory but are mathematically challenging to study: We present analytical results to address this challenge. We illustrate our general approach by analyzing optimal adaptive strategies in the presence of trade-offs that constrain the range of accessible phenotypes. Our results extend several previous studies and have applications to a variety of biological phenomena, from antibiotic resistance in bacteria to immune responses in vertebrates. PMID- 29346943 TI - Whitham modulation theory for the two-dimensional Benjamin-Ono equation. AB - Whitham modulation theory for the two-dimensional Benjamin-Ono (2DBO) equation is presented. A system of five quasilinear first-order partial differential equations is derived. The system describes modulations of the traveling wave solutions of the 2DBO equation. These equations are transformed to a singularity free hydrodynamic-like system referred to here as the 2DBO-Whitham system. Exact reductions of this system are discussed, the formulation of initial value problems is considered, and the system is used to study the transverse stability of traveling wave solutions of the 2DBO equation. PMID- 29346944 TI - Phase transition and power-law coarsening in an Ising-doped voter model. AB - We examine an opinion formation model, which is a mixture of Voter and Ising agents. Numerical simulations show that even a very small fraction (~1%) of the Ising agents drastically changes the behavior of the Voter model. The Voter agents act as a medium, which correlates sparsely dispersed Ising agents, and the resulting ferromagnetic ordering persists up to a certain temperature. Upon addition of the Ising agents, a logarithmically slow coarsening of the Voter model (d=2), or its active steady state (d=3), change into an Ising-type power law coarsening. PMID- 29346945 TI - Nonmonotonic dependence of polymer-glass mechanical response on chain bending stiffness. AB - We investigate the mechanical properties of amorphous polymers by means of coarse grained simulations and nonaffine lattice dynamics theory. A small increase of polymer chain bending stiffness leads first to softening of the material, while hardening happens only upon further strengthening of the backbones. This nonmonotonic variation of the storage modulus G^{'} with bending stiffness is caused by a competition between additional resistance to deformation offered by stiffer backbones and decreased density of the material due to a necessary decrease in monomer-monomer coordination. This counterintuitive finding suggests that the strength of polymer glasses may in some circumstances be enhanced by softening the bending of constituent chains. PMID- 29346946 TI - Flow and clog in a silo with oscillating exit. AB - When grains flow out of a silo, flow rate W increases with exit size D. If D is too small, an arch may form and the flow may be blocked at the exit. To recover from clogging, the arch has to be destroyed. Here we construct a two-dimensional silo with movable exit and study the effects of exit oscillation (with amplitude A and frequency f) on flow rate, clogging, and unclogging of grains through the exit. We find that, if exit oscillates, W remains finite even when D (measured in unit of grain diameter) is only slightly larger than one. Surprisingly, while W increases with oscillation strength Gamma=4pi^{2}Af^{2} as expected at small D, W decreases with Gamma when D>=5 due to induced random motion of the grains at the exit. When D is small and oscillation speed v=2piAf is slow, temporary clogging events cause the grains to flow intermittently. In this regime, W depends only on v-a feature consistent to a simple arch breaking mechanism, and the phase boundary of intermittent flow in the D-v plane is consistent to either a power law: D?v^{-7} or an exponential form: D?e^{-D/0.55}. Furthermore, the flow time statistic is Poissonian whereas the recovery time statistic follows a power-law distribution. PMID- 29346947 TI - Bragg solitons in systems with separated nonuniform Bragg grating and nonlinearity. AB - The existence and stability of quiescent Bragg grating solitons are systematically investigated in a dual-core fiber, where one of the cores is uniform and has Kerr nonlinearity while the other one is linear and incorporates a Bragg grating with dispersive reflectivity. Three spectral gaps are identified in the system, in which both lower and upper band gaps overlap with one branch of the continuous spectrum; therefore, these are not genuine band gaps. However, the central band gap is a genuine band gap. Soliton solutions are found in the lower and upper gaps only. It is found that in certain parameter ranges, the solitons develop side lobes. To analyze the side lobes, we have derived exact analytical expressions for the tails of solitons that are in excellent agreement with the numerical solutions. We have analyzed the stability of solitons in the system by means of systematic numerical simulations. We have found vast stable regions in the upper and lower gaps. The effect and interplay of dispersive reflectivity, the group velocity difference, and the grating-induced coupling on the stability of solitons are investigated. A key finding is that a stronger grating-induced coupling coefficient counteracts the stabilization effect of dispersive reflectivity. PMID- 29346948 TI - Regularized fractional Ornstein-Uhlenbeck processes and their relevance to the modeling of fluid turbulence. AB - Motivated by the modeling of the temporal structure of the velocity field in a highly turbulent flow, we propose and study a linear stochastic differential equation that involves the ingredients of an Ornstein-Uhlenbeck process, supplemented by a fractional Gaussian noise, of parameter H, regularized over a (small) time scale epsilon>0. A peculiar correlation between these two plays a key role in the establishment of the statistical properties of its solution. We show that this solution reaches a stationary regime, which marginals, including variance and increment variance, remain bounded when epsilon->0. In particular, in this limit, for any H?]0,1[, we show that the increment variance behaves at small scales as the one of a fractional Brownian motion of same parameter H. From the theoretical side, this approach appears especially well suited to deal with the (very) rough case H<1/2, including the boundary value H=0, and to design simple and efficient numerical simulations. PMID- 29346949 TI - Hyperuniformity disorder length spectroscopy for extended particles. AB - The concept of a hyperuniformity disorder length h was recently introduced for analyzing volume fraction fluctuations for a set of measuring windows [Chieco et al., Phys. Rev. E 96, 032909 (2017).PLEEE81539-375510.1103/PhysRevE.96.032909]. This length permits a direct connection to the nature of disorder in the spatial configuration of the particles and provides a way to diagnose the degree of hyperuniformity in terms of the scaling of h and its value in comparison with established bounds. Here, this approach is generalized for extended particles, which are larger than the image resolution and can lie partially inside and partially outside the measuring windows. The starting point is an expression for the relative volume fraction variance in terms of four distinct volumes: that of the particle, the measuring window, the mean-squared overlap between particle and region, and the region over which particles have nonzero overlap with the measuring window. After establishing limiting behaviors for the relative variance, computational methods are developed for both continuum and pixelated particles. Exact results are presented for particles of special shape and for measuring windows of special shape, for which the equations are tractable. Comparison is made for other particle shapes, using simulated Poisson patterns. And the effects of polydispersity and image errors are discussed. For small measuring windows, both particle shape and spatial arrangement affect the form of the variance. For large regions, the variance scaling depends only on arrangement but particle shape sets the numerical proportionality. The combined understanding permit the measured variance to be translated to the spectrum of hyperuniformity lengths versus region size, as the quantifier of spatial arrangement. This program is demonstrated for a system of nonoverlapping particles at a series of increasing packing fractions as well as for an Einstein pattern of particles with several different extended shapes. PMID- 29346950 TI - Generalized Archimedes' principle in active fluids. AB - We show how a gradient in the motility properties of noninteracting pointlike active particles can cause a pressure gradient that pushes a large inert object. We calculate the force on an object inside a system of active particles with position-dependent motion parameters, in one and two dimensions, and show that a modified Archimedes' principle is satisfied. We characterize the system, both in terms of the model parameters and in terms of experimentally measurable quantities: the spatial profiles of the density, velocity and pressure. This theoretical analysis is motivated by recent experiments, which showed that the nucleus of a mouse oocyte (immature egg cell) moves from the cortex to the center due to a gradient of activity of vesicles propelled by molecular motors; it more generally applies to artificial systems of controlled localized activity. PMID- 29346951 TI - Universal exponent for transport in mixed Hamiltonian dynamics. AB - We compute universal distributions for the transition probabilities of a Markov model for transport in the mixed phase space of area-preserving maps and verify that the survival probability distribution for trajectories near an infinite island-around-island hierarchy exhibits, on average, a power-law decay with exponent gamma=1.57. This exponent agrees with that found from simulations of the Henon and Chirikov-Taylor maps. This provides evidence that the Meiss-Ott Markov tree model describes the transport for mixed systems. PMID- 29346952 TI - Fluctuations in an established transmission in the presence of a complex environment. AB - In various situations where wave transport is preeminent, like in wireless communication, a strong established transmission is present in a complex scattering environment. We develop a nonperturbative approach to describe emerging fluctuations which combines a transmitting channel and a chaotic background in a unified effective Hamiltonian. Modeling such a background by random matrix theory, we derive exact results for both transmission and reflection distributions at arbitrary absorption that is typically present in real systems. Remarkably, in such a complex scattering situation, the transport is governed by only two parameters: an absorption rate and the ratio of the so called spreading width to the natural width of the transmission line. In particular, we find that the established transmission disappears sharply when this ratio exceeds unity. The approach exemplifies the role of the chaotic background in dephasing the deterministic scattering. PMID- 29346953 TI - Quantum statistical effects in the mass transport of interstitial solutes in a crystalline solid. AB - The impact of quantum statistics on the many-body dynamics of a crystalline solid at finite temperatures containing an interstitial solute atom (ISA) is investigated. The Mori-Zwanzig theory allows the many-body dynamics of the crystal to be formulated and solved analytically within a pseudo-one-particle approach using the Langevin equation with a quantum fluctuation-dissipation relation (FDR) based on the Debye model. At the same time, the many-body dynamics is also directly solved numerically via the molecular dynamics approach with a Langevin heat bath based on the quantum FDR. Both the analytical and numerical results consistently show that below the Debye temperature of the host lattice, quantum statistics significantly impacts the ISA transport properties, resulting in major departures from both the Arrhenius law of diffusion and the Einstein Smoluchowski relation between the mobility and diffusivity. Indeed, we found that below one-third of the Debye temperature, effects of vibrations on the quantum mobility and diffusivity are both orders-of-magnitude larger and practically temperature independent. We have shown that both effects have their physical origin in the athermal lattice vibrations derived from the phonon ground state. The foregoing theory is tested in quantum molecular dynamics calculation of mobility and diffusivity of interstitial helium in bcc W. In this case, the Arrhenius law is only valid in a narrow range between ~300 and ~700 K. The diffusivity becomes temperature independent on the low-temperature side while increasing linearly with temperature on the high-temperature side. PMID- 29346954 TI - Dynamical pattern selection of growing cellular mosaic in fish retina. AB - A Markovian lattice model for photoreceptor cells is introduced to describe the growth of mosaic patterns on fish retina. The radial stripe pattern observed in wild-type zebrafish is shown to be selected naturally during retina growth, against the geometrically equivalent circular stripe pattern. The mechanism of such dynamical pattern selection is clarified on the basis of both numerical simulations and theoretical analyses, which find that the successive emergence of local defects plays a critical role in the realization of the wild-type pattern. PMID- 29346955 TI - Ehrenfest urn model with interaction. AB - We studied the Ehrenfest urn model in which particles in the same urn interact with each other. Depending on the nature of interaction, the system undergoes a first- or second-order phase transition. The relaxation time to the equilibrium state, the Poincare cycles of the equilibrium state and the most far-from equilibrium state, and the duration time of the states during first-order phase transition are calculated. It was shown that the scaling behavior the Poincare cycles could serve as an indication to the nature of phase transition, and the behavior of the ratio of duration time of the states could be strong evidence of the metastability during first-order phase transition. PMID- 29346956 TI - Pseudoinverse of the Laplacian and best spreader node in a network. AB - Determining a set of "important" nodes in a network constitutes a basic endeavor in network science. Inspired by electrical flows in a resistor network, we propose the best conducting node j in a graph G as the minimizer of the diagonal element Q_{jj}^{?} of the pseudoinverse matrix Q^{?} of the weighted Laplacian matrix of the graph G. We propose a new graph metric that complements the effective graph resistance R_{G} and that specifies the heterogeneity of the nodal spreading capacity in a graph. Various formulas and bounds for the diagonal element Q_{jj}^{?} are presented. Finally, we compute the pseudoinverse matrix of the Laplacian of star, path, and cycle graphs and derive an expansion and lower bound of the effective graph resistance R_{G} based on the complement of the graph G. PMID- 29346957 TI - Double transition in a model of oscillating percolation. AB - Two distinct transition points have been observed in a problem of lattice percolation studied using a system of pulsating disks. Sites on a regular lattice are occupied by circular disks whose radii vary sinusoidally within [0,R_{0}] starting from a random distribution of phase angles. A lattice bond is said to be connected when its two end disks overlap with each other. Depending on the difference of the phase angles of these disks, a bond may be termed as dead or live. While a dead bond can never be connected, a live bond is connected at least once in a complete time period. Two different time scales can be associated with such a system, leading to two transition points. Namely, a percolation transition occurs at R_{0c}=0.908(5) when a spanning cluster of connected bonds emerges in the system. Here, information propagates across the system instantly, i.e., with infinite speed. Secondly, there exists another transition point R_{0}^{*}=0.5907(3) where the giant cluster of live bonds spans the lattice. In this case the information takes finite time to propagate across the system through the dynamical evolution of finite-size clusters. This passage time diverges as R_{0}->R_{0}^{*} from above. Both the transitions exhibit the critical behavior of ordinary percolation transition. The entire scenario is robust with respect to the distribution of frequencies of the individual disks. This study may be relevant in the context of wireless sensor networks. PMID- 29346958 TI - Electroclinic effect in chiral smectic-A liquid crystal elastomers. AB - Chiral smectic-A liquid crystal elastomers are rubbery materials composed of a lamellar arrangement of liquid crystalline mesogens. It has been shown experimentally that these materials shear when subjected to an electric field due to the electrically induced tilt of the director. Experiments have also shown that shearing a chiral smectic-A elastomer gives rise to a polarization. Roughly, the shear force tilts the directors which, in turn, induce electric dipoles. This paper builds on previous works and models the electromechanical response of smectic-A elastomers using free energy contributions that are associated with the lamellar structure, the relative tilt between the director and the layer normal, and the coupling between the director and the electric field. To illustrate the merit of the proposed model, two cases are considered-a deformation induced polarization and an electrically induced deformation. The predictions according to these two models qualitatively agree with experimental findings. Finally, a cylinder composed of helical smectic layers is also considered. It is shown that the electromechanical response varies as a function of the helix angle. PMID- 29346959 TI - Complex free-energy landscapes in biaxial nematic liquid crystals and the role of repulsive interactions: A Wang-Landau study. AB - General quadratic Hamiltonian models, describing the interaction between liquid crystal molecules (typically with D_{2h} symmetry), take into account couplings between their uniaxial and biaxial tensors. While the attractive contributions arising from interactions between similar tensors of the participating molecules provide for eventual condensation of the respective orders at suitably low temperatures, the role of cross coupling between unlike tensors is not fully appreciated. Our recent study with an advanced Monte Carlo technique (entropic sampling) showed clearly the increasing relevance of this cross term in determining the phase diagram (contravening in some regions of model parameter space), the predictions of mean-field theory, and standard Monte Carlo simulation results. In this context, we investigated the phase diagrams and the nature of the phases therein on two trajectories in the parameter space: one is a line in the interior region of biaxial stability believed to be representative of the real systems, and the second is the extensively investigated parabolic path resulting from the London dispersion approximation. In both cases, we find the destabilizing effect of increased cross-coupling interactions, which invariably result in the formation of local biaxial organizations inhomogeneously distributed. This manifests as a small, but unmistakable, contribution of biaxial order in the uniaxial phase. The free-energy profiles computed in the present study as a function of the two dominant order parameters indicate complex landscapes. On the one hand, these profiles account for the unusual thermal behavior of the biaxial order parameter under significant destabilizing influence from the cross terms. On the other, they also allude to the possibility that in real systems, these complexities might indeed be inhibiting the formation of a low-temperature biaxial order itself-perhaps reflecting the difficulties in their ready realization in the laboratory. PMID- 29346960 TI - Chimera and modulated drift states in a ring of nonlocally coupled oscillators with heterogeneous phase lags. AB - We consider a ring of phase oscillators with nonlocal coupling strength and heterogeneous phase lags. We analyze the effects of heterogeneity in the phase lags on the existence and stability of a variety of steady states. A nonlocal coupling with heterogeneous phase lags that allows the system to be solved analytically is suggested and the stability of solutions along the Ott-Antonsen invariant manifold is explored. We present a complete bifurcation diagram for stationary patterns including the uniform drift and modulated drift states as well as chimera state, which reveals that the stable modulated drift state and a continuum of metastable drift states could occur due to the heterogeneity of the phase lags. We verify our theoretical results using the direct numerical simulations of the model system. PMID- 29346961 TI - Photonic band structure of diamond colloidal crystals in a cholesteric liquid crystal. AB - In this paper, we demonstrate the presence of a photonic band gap for a diamond lattice structure made of particles with normal anchoring inside a cholesteric liquid crystal. As is typical for liquid crystals (LCs), there is considerable contrast between the dielectric constant parallel epsilon_{?} and perpendicular epsilon_{?} to the director, with epsilon_{?}/epsilon_{?}~4 here. It is shown that the size of the photonic band gap is directly related to the size of colloidal particles and the contrast between the dielectric constant in the particles and the extreme values of epsilon in the LC medium (one needs either epsilon in the particle much smaller than epsilon_{?} or much bigger than epsilon_{?}). No opening is seen in the band diagrams for small particles. For larger particles a partial gap opens when the particles are composed of very low dielectric material but never a complete gap. On the other hand, a complete gap starts to be revealed when the size of the colloidal particles is increased and when a high dielectric constant is used for filling inside the particles. The maximum size of the gap is observed when the particles are large enough so that their surfaces overlap. PMID- 29346962 TI - Osmotic mechanism of the loop extrusion process. AB - The loop extrusion theory assumes that protein factors, such as cohesin rings, act as molecular motors that extrude chromatin loops. However, recent single molecule experiments have shown that cohesin does not show motor activity. To predict the physical mechanism involved in loop extrusion, we here theoretically analyze the dynamics of cohesin rings on a loop, where a cohesin loader is in the middle and unloaders at the ends. Cohesin monomers bind to the loader rather frequently and cohesin dimers bind to this site only occasionally. Our theory predicts that a cohesin dimer extrudes loops by the osmotic pressure of cohesin monomers on the chromatin fiber between the two connected rings. With this mechanism, the frequency of the interactions between chromatin segments depends on the loading and unloading rates of dimers at the corresponding sites. PMID- 29346963 TI - Publisher's Note: Oscillatory motion of a camphor grain in a one-dimensional finite region [Phys. Rev. E 94, 042215 (2016)]. AB - This corrects the article DOI: 10.1103/PhysRevE.94.042215. PMID- 29346964 TI - Predictability of fat-tailed extremes. AB - We conjecture for a linear stochastic differential equation that the predictability of threshold exceedances (I) improves with the event magnitude when the noise is a so-called correlated additive-multiplicative noise, no matter the nature of the stochastic innovations, and also improves when (II) the noise is purely additive, obeying a distribution that decays fast, i.e., not by a power law, and (III) deteriorates only when the additive noise distribution follows a power law. The predictability is measured by a summary index of the receiver operating characteristic curve. We provide support to our conjecture-to compliment reports in the existing literature on (II)-by a set of case studies. Calculations for the prediction skill are conducted in some cases by a direct numerical time-series-data-driven approach and in other cases by an analytical or semianalytical approach developed here. PMID- 29346965 TI - Solute-mediated interactions between active droplets. AB - Concentration gradients play a critical role in embryogenesis, bacterial locomotion, as well as the motility of active particles. Particles develop concentration profiles around them by dissolution, adsorption, or the reactivity of surface species. These gradients change the surface energy of the particles, driving both their self-propulsion and governing their interactions. Here, we uncover a regime in which solute gradients mediate interactions between slowly dissolving droplets without causing autophoresis. This decoupling allows us to directly measure the steady-state, repulsive force, which scales with interparticle distance as F~1/r^{2}. Our results show that the dissolution process is diffusion rather than reaction rate limited, and the theoretical model captures the dependence of the interactions on droplet size and solute concentration, using a single fit parameter, l=16+/-3nm, which corresponds to the length scale of a swollen micelle. Our results shed light on the out-of equilibrium behavior of particles with surface reactivity. PMID- 29346966 TI - Systematic dimensionality reduction for continuous-time quantum walks of interacting fermions. AB - To extend the continuous-time quantum walk (CTQW) to simulate P distinguishable particles on a graph G composed of N vertices, the Hamiltonian of the system is expanded to act on an N^{P}-dimensional Hilbert space, in effect, simulating the multiparticle CTQW on graph G via a single-particle CTQW propagating on the Cartesian graph product G^{?P}. The properties of the Cartesian graph product have been well studied, and classical simulation of multiparticle CTQWs are common in the literature. However, the above approach is generally applied as is when simulating indistinguishable particles, with the particle statistics then applied to the propagated N^{P} state vector to determine walker probabilities. We address the following question: How can we modify the underlying graph structure G^{?P} in order to simulate multiple interacting fermionic CTQWs with a reduction in the size of the state space? In this paper, we present an algorithm for systematically removing "redundant" and forbidden quantum states from consideration, which provides a significant reduction in the effective dimension of the Hilbert space of the fermionic CTQW. As a result, as the number of interacting fermions in the system increases, the classical computational resources required no longer increases exponentially for fixed N. PMID- 29346967 TI - Surface contact charging. AB - Experiments in several laboratories have demonstrated that identical materials brought into repeated contact generate unexplained and growing surface charge domains. Here we show that the growth of charge from these experiments can be fitted to a previously developed first-principles model for contact charging based on feedback of random surface polarizations. Surprisingly this mechanism, which leads to exponential growth in colliding granular beds, can also explain nonexponential growth of surface charging, as well as predicting spatiotemporal growth of charge domains and their dependencies on material parameters. PMID- 29346968 TI - Scaling behavior of thin films on chemically heterogeneous walls. AB - We study the adsorption of a fluid in the grand canonical ensemble occurring at a planar heterogeneous wall which is decorated with a chemical stripe of width L. We suppose that the material of the stripe strongly preferentially adsorbs the liquid in contrast to the outer material which is only partially wet. This competition leads to the nucleation of a droplet of liquid on the stripe, the height h_{m} and shape of which (at bulk two-phase coexistence) has been predicted previously using mesoscopic interfacial Hamiltonian theory. We test these predictions using a microscopic Fundamental Measure Density Functional Theory which incorporates short-ranged fluid-fluid and fully long-ranged wall fluid interactions. Our model functional accurately describes packing effects not captured by the interfacial Hamiltonian but still we show that there is excellent agreement with the predictions h_{m}~L^{1/2} and for the scaled circular shape of the drop even for L as small as 50 molecular diameters. For smaller stripes the droplet height is considerably lower than that predicted by the mesoscopic interfacial theory. Phase transitions for droplet configurations occurring on substrates with multiple stripes are also discussed. PMID- 29346969 TI - Fitness voter model: Damped oscillations and anomalous consensus. AB - We study the dynamics of opinion formation in a heterogeneous voter model on a complete graph, in which each agent is endowed with an integer fitness parameter k>=0, in addition to its + or - opinion state. The evolution of the distribution of k-values and the opinion dynamics are coupled together, so as to allow the system to dynamically develop heterogeneity and memory in a simple way. When two agents with different opinions interact, their k-values are compared, and with probability p the agent with the lower value adopts the opinion of the one with the higher value, while with probability 1-p the opposite happens. The agent that keeps its opinion (winning agent) increments its k-value by one. We study the dynamics of the system in the entire 0<=p<=1 range and compare with the case p=1/2, in which opinions are decoupled from the k-values and the dynamics is equivalent to that of the standard voter model. When 0<=p<1/2, agents with higher k-values are less persuasive, and the system approaches exponentially fast to the consensus state of the initial majority opinion. The mean consensus time tau appears to grow logarithmically with the number of agents N, and it is greatly decreased relative to the linear behavior tau~N found in the standard voter model. When 1/2 second order -> two-stage -> first-order as the k-core threshold is increased. The analytic equations describing the phase boundaries of the two-stage transition region are set up, and the critical exponents for each type of transition are derived analytically. PMID- 29346974 TI - Additional energy-information relations in thermodynamics of small systems. AB - The Clausius inequality form of the second law of thermodynamics relates information changes (entropy) to changes in the first moment of the energy (heat and indirectly also work). Are there similar relations between other moments of the energy distribution, and other information measures, or is the Clausius inequality a one of a kind instance of the energy-information paradigm? If there are additional relations, can they be used to make predictions on measurable quantities? Changes in the energy distribution beyond the first moment (average heat or work) are especially important in small systems which are often very far from thermal equilibrium. The additional energy-information relations (AEIR's), here derived, provide positive answers to the two questions above and add another layer to the fundamental connection between energy and information. To illustrate the utility of the new AEIR's, we find scenarios where the AEIR's yield tighter constraints on performance (e.g., in thermal machines) compared to the second law. To obtain the AEIR's we use the Bregman divergence-a mathematical tool found to be highly suitable for energy-information studies. The quantum version of the AEIR's provides a thermodynamic meaning to various quantum coherence measures. It is intriguing to fully map the regime of validity of the AEIR's and extend the present results to more general scenarios including continuous systems and particles exchange with the baths. PMID- 29346975 TI - Cycle-expansion method for the Lyapunov exponent, susceptibility, and higher moments. AB - Lyapunov exponents characterize the chaotic nature of dynamical systems by quantifying the growth rate of uncertainty associated with the imperfect measurement of initial conditions. Finite-time estimates of the exponent, however, experience fluctuations due to both the initial condition and the stochastic nature of the dynamical path. The scale of these fluctuations is governed by the Lyapunov susceptibility, the finiteness of which typically provides a sufficient condition for the law of large numbers to apply. Here, we obtain a formally exact expression for this susceptibility in terms of the Ruelle dynamical zeta function for one-dimensional systems. We further show that, for systems governed by sequences of random matrices, the cycle expansion of the zeta function enables systematic computations of the Lyapunov susceptibility and of its higher-moment generalizations. The method is here applied to a class of dynamical models that maps to static disordered spin chains with interactions stretching over a varying distance and is tested against Monte Carlo simulations. PMID- 29346976 TI - Correspondence between a noisy sample-space-reducing process and records in correlated random events. AB - We study survival time statistics in a noisy sample-space-reducing (SSR) process. Our simulations suggest that both the mean and standard deviation scale as ~N/N^{lambda}, where N is the system size and lambda is a tunable parameter that characterizes the process. The survival time distribution has the form P_{N}(tau)~N^{-theta}J(tau/N^{theta}), where J is a universal scaling function and theta=1-lambda. Analytical insight is provided by a conjecture for the equivalence between the survival time statistics in the noisy SSR process and the record statistics in a correlated time series modeled as a drifted random walk with Cauchy distributed jumps. PMID- 29346977 TI - Dynamical ion transfer between coupled Coulomb crystals in a double-well potential. AB - We investigate the nonequilibrium dynamics of coupled Coulomb crystals of different sizes trapped in a double well potential. The dynamics is induced by an instantaneous quench of the potential barrier separating the two crystals. Due to the intra- and intercrystal Coulomb interactions and the asymmetric population of the potential wells, we observe a complex reordering of ions within the two crystals as well as ion transfer processes from one well to the other. The study and analysis of the latter processes constitutes the main focus of this work. In particular, we examine the dependence of the observed ion transfers on the quench amplitude performing an analysis for different crystalline configurations ranging from one-dimensional ion chains via two-dimensional zigzag chains and ring structures to three-dimensional spherical structures. Such an analysis provides us with the means to extract the general principles governing the ion transfer dynamics and we gain some insight on the structural disorder caused by the quench of the barrier height. PMID- 29346978 TI - Heating without heat: Thermodynamics of passive energy filters between finite systems. AB - Passive filters allowing the exchange of particles in a narrow band of energy are currently used in microrefrigerators and energy transducers. In this Rapid Communication, we analyze their thermal properties using linear irreversible thermodynamics and kinetic theory, and discuss a striking phenomenon: the possibility of simultaneously increasing or decreasing the temperatures of two systems without any supply of energy. This occurs when the filter induces a flow of particles whose energy is between the average energies of the two systems. Here we show that this selective transfer of particles does not need the action of any sort of Maxwell demon and can be carried out by passive filters without compromising the second law of thermodynamics. This phenomenon allows us to design cycles between two reservoirs at temperatures T_{1}1. And finally, for a hyperuniform system with no long-range density fluctuations, we consider "Einstein patterns," where each particle is independently displaced from a lattice site by a Gaussian-distributed amount. For these, at large L,h approaches a constant equal to about half the root-mean-square displacement in each dimension. Then we turn to gray-scale pixel patterns that represent simulated arrangements of polydisperse particles, where the volume of a particle is encoded in the value of its central pixel. And we discuss the continuum limit of point patterns, where pixel size vanishes. In general, we thus propose to quantify particle configurations not just by the scaling of the density fluctuation spectrum but rather by the real-space spectrum of h(L) versus L. We call this approach "hyperuniformity disorder length spectroscopy". PMID- 29346988 TI - Liquid part of the phase diagram and percolation line for two-dimensional Mercedes-Benz water. AB - Monte Carlo simulations and Wertheim's thermodynamic perturbation theory (TPT) are used to predict the phase diagram and percolation curve for the simple two dimensional Mercedes-Benz (MB) model of water. The MB model of water is quite popular for explaining water properties, but the phase diagram has not been reported till now. In the MB model, water molecules are modeled as two dimensional Lennard-Jones disks, with three orientation-dependent hydrogen bonding arms, arranged as in the MB logo. The liquid part of the phase space is explored using grand canonical Monte Carlo simulations and two versions of Wertheim's TPT for associative fluids, which have been used before to predict the properties of the simple MB model. We find that the theory reproduces well the physical properties of hot water but is less successful at capturing the more structured hydrogen bonding that occurs in cold water. In addition to reporting the phase diagram and percolation curve of the model, it is shown that the improved TPT predicts the phase diagram rather well, while the standard one predicts a phase transition at lower temperatures. For the percolation line, both versions have problems predicting the correct position of the line at high temperatures. PMID- 29346989 TI - Generation of droplet arrays with rational number spacing patterns driven by a periodic energy landscape. AB - The generation of droplets at low Reynolds numbers is driven by nonlinear dynamics that give rise to complex patterns concerning both the droplet-to droplet spacing and the individual droplet sizes. Here we demonstrate an experimental system in which a time-varying energy landscape provides a periodic magnetic force that generates an array of droplets from an immiscible mixture of ferrofluid and silicone oil. The resulting droplet patterns are periodic, owing to the nature of the magnetic force, yet the droplet spacing and size can vary greatly by tuning a single bias pressure applied on the ferrofluid phase; for a given cycle period of the magnetic force, droplets can be generated either at integer multiples (1, 2, ...), or at rational fractions (3/2, 5/3, 5/2, ...) of this period with mono- or multidisperse droplet sizes. We develop a discrete-time dynamical systems model not only to reproduce the phenotypes of the observed patterns but also to provide a framework for understanding systems driven by such periodic energy landscapes. PMID- 29346990 TI - Critical noise can make the minority candidate win: The U.S. presidential election cases. AB - A national voting population, when segmented into groups such as, for example, different states, can yield a counterintuitive scenario in which the winner may not necessarily get the highest number of total votes. A recent example is the 2016 presidential election in the United States. We model the situation by using interacting opinion dynamics models, and we look at the effect of coarse graining near the critical points where the spatial fluctuations are high. We establish that the sole effect of coarse graining, which mimics the "winner take all" electoral college system in the United States, can give rise to finite probabilities of events in which a minority candidate wins even in the large size limit near the critical point. The overall probabilities of victory of the minority candidate can be predicted from the models, which indicate that one may expect more instances of minority candidate winning in the future. PMID- 29346991 TI - Universal scaling of the stress-strain curve in amorphous solids. AB - The yielding transition of amorphous solids is a phase transition with a special type of universality. Critical exponents and scaling relations have been defined and proposed near the yield stress. We show here that, even in the initial stage of shear far below the yield stress, the stress-strain curve of amorphous solids also shows critical scaling with universal exponents. The key point is to remove the elastic part of the strain, and the shear stress exhibits a sublinear scaling with the plastic strain. We show how this critical scaling is related to the finite size effect of the minimum strain to trigger the first plastic avalanche after a quench. We point out that this sublinear scaling between the stress and the plastic strain implies the divergence of a high-order shear modulus. A scaling relation is derived between two exponents characterizing the stress strain curve and the density distribution of the local stabilities, respectively. We test the critical scaling of the stress-strain curve using both mesoscopic and atomistic simulations and get satisfying agreement in two and three dimensions. PMID- 29346992 TI - Existence and construction of large stable food webs. AB - Ecological diversity is ubiquitous despite the restrictions imposed by competitive exclusion and apparent competition. To explain the observed richness of species in a given habitat, food-web theory has explored nonlinear functional responses, self-interaction, or spatial structure and dispersal-model ingredients that have proven to promote stability and diversity. We return instead here to classical Lotka-Volterra equations, where species-species interaction is characterized by a simple product and spatial restrictions are ignored. We quantify how this idealization imposes constraints on coexistence and diversity for many species. To this end, we introduce the concept of free and controlled species and use this to demonstrate how stable food webs can be constructed by the sequential addition of species. The resulting food webs can reach dozens of species and generally yield nonrandom degree distributions in accordance with the constraints imposed through the assembly process. Our model thus serves as a formal starting point for the study of sustainable interaction patterns between species. PMID- 29346993 TI - Vibrational resonance in an inhomogeneous medium with periodic dissipation. AB - The role of nonlinear dissipation in vibrational resonance (VR) is investigated in an inhomogeneous system characterized by a symmetric and spatially periodic potential and subjected to nonuniform state-dependent damping and a biharmonic driving force. The contributions of the parameters of the high-frequency signal to the system's effective dissipation are examined theoretically in comparison to linearly damped systems, for which the parameter of interest is the effective stiffness in the equation of slow vibration. We show that the VR effect can be enhanced by varying the nonlinear dissipation parameters and that it can be induced by a parameter that is shared by the damping inhomogeneity and the system potential. Furthermore, we have apparently identified the origin of the nonlinear dissipation-enhanced response: We provide evidence of its connection to a Hopf bifurcation, accompanied by monotonic attractor enlargement in the VR regime. PMID- 29346994 TI - Weakly non-Boussinesq convection in a gaseous spherical shell. AB - We examine the dynamics associated with weakly compressible convection in a spherical shell by running 3D direct numerical simulations using the Boussinesq formalism [Spiegel and Veronis, Astrophys. J. 131, 442 (1960)AJLEEY0004 637X10.1086/146849]. Motivated by problems in astrophysics, we assume the existence of a finite adiabatic temperature gradient ?T_{ad} and use mixed boundary conditions for the temperature with fixed flux at the inner boundary and fixed temperature at the outer boundary. This setup is intrinsically more asymmetric than the more standard case of Rayleigh-Benard convection in liquids between parallel plates with fixed temperature boundary conditions. Conditions where there is substantial asymmetry can cause a dramatic change in the nature of convection and we demonstrate that this is the case here. The flows can become pressure- rather than buoyancy-dominated, leading to anomalous heat transport by upflows. Counterintuitively, the background temperature gradient ?T[over -] can develop a subadiabatic layer (where g.?T[over -] resembles the spatial average in the large size limit, which appears smooth and displays a putative elastic regime at small strains, a yielding-related peak in stress at intermediate strain, and a plastic flow regime at large strains. In contrast, for each glass configuration in the ensemble, the stress-strain curve sigma(gamma) consists of many short nearly linear segments that are punctuated by particle-rearrangement-induced rapid stress drops. To explain the nonlinearity of , we quantify the shape of the small stress-strain segments and the frequency and size of the stress drops in each glass configuration. We decompose the stress loss [i.e., the deviation in the slope of from that at ] into the loss from particle rearrangements and the loss from softening [i.e., the reduction of the slopes of the linear segments in sigma(gamma)], and then compare the two contributions as a function of R and gamma. For the current studies, the rearrangement-induced stress loss is larger than the softening-induced stress loss, however, softening stress losses increase with decreasing cooling rate. We also characterize the structure of the potential energy landscape along the strain direction for glasses prepared with different R, and observe a dramatic change of the properties of the landscape near the yielding transition. We then show that the rearrangement-induced energy loss per strain can serve as an order parameter for the yielding transition, which sharpens for slow cooling rates and in large systems. PMID- 29346997 TI - Deformation and buckling of microcapsules in a viscoelastic matrix. AB - In this paper, we numerically study the dynamics of (1) a Newtonian liquid-filled capsule in a viscoelastic matrix and that of (2) a viscoelastic capsule in a Newtonian matrix in a linear shear flow using a front-tracking method. The numerical results for case (1) indicate that the polymeric fluid reduces the capsule deformation and aligns the deformed capsule with the flow direction. It also narrows the range of tension experienced by the deformed capsule for case (1), while the tank-treading period significantly increases. Interestingly, the polymeric fluid has an opposite effect on the tank-treading period and the orientation angle of case (2), but its effect on the deformation is similar to case (1). PMID- 29346998 TI - Antiferromagnetic Ising model in an imaginary magnetic field. AB - We study the two-dimensional antiferromagnetic Ising model with a purely imaginary magnetic field, which can be thought of as a toy model for the usual theta physics. Our motivation is to have a benchmark calculation in a system which suffers from a strong sign problem, so that our results can be used to test Monte Carlo methods developed to tackle such problems. We analyze here this model by means of analytical techniques, computing exactly the first eight cumulants of the expansion of the effective Hamiltonian in powers of the inverse temperature, and calculating physical observables for a large number of degrees of freedom with the help of standard multiprecision algorithms. We report accurate results for the free energy density, internal energy, standard and staggered magnetization, and the position and nature of the critical line, which confirm the mean-field qualitative picture, and which should be quantitatively reliable, at least in the high-temperature regime, including the entire critical line. PMID- 29346999 TI - Mean flow produced by small-amplitude vibrations of a liquid bridge with its free surface covered with an insoluble surfactant. AB - As is well known, confined fluid systems subject to forced vibrations produce mean flows, called in this context streaming flows. These mean flows promote an overall mass transport in the fluid that has consequences in the transport of passive scalars and surfactants, when these are present in a fluid interface. Such transport causes surfactant concentration inhomogeneities that are to be counterbalanced by Marangoni elasticity. Therefore, the interaction of streaming flows and Marangoni convection is expected to produce new flow structures that are different from those resulting when only one of these effects is present. The present paper focuses on this interaction using the liquid bridge geometry as a paradigmatic system for the analysis. Such analysis is based on an appropriate post-processing of the results obtained via direct numerical simulation of the system for moderately small viscosity, a condition consistent with typical experiments of vibrated millimetric liquid bridges. It is seen that the flow patterns show a nonmonotone behavior as the Marangoni number is increased. In addition, the strength of the mean flow at the free surface exhibits two well defined regimes as the forcing amplitude increases. These regimes show fairly universal power-law behaviors. PMID- 29347000 TI - Pattern production through a chiral chasing mechanism. AB - Recent experiments on zebrafish pigmentation suggests that their typical black and white striped skin pattern is made up of a number of interacting chromatophore families. Specifically, two of these cell families have been shown to interact through a nonlocal chasing mechanism, which has previously been modeled using integro-differential equations. We extend this framework to include the experimentally observed fact that the cells often exhibit chiral movement, in that the cells chase, and run away, at angles different to the line connecting their centers. This framework is simplified through the use of multiple small limits leading to a coupled set of partial differential equations which are amenable to Fourier analysis. This analysis results in the production of dispersion relations and necessary conditions for a patterning instability to occur. Beyond the theoretical development and the production of new pattern planiforms we are able to corroborate the experimental hypothesis that the global pigmentation patterns can be dependent on the chirality of the chromatophores. PMID- 29347001 TI - Universal scaling of the distribution of land in urban areas. AB - In this work, we explore the spatial structure of built zones and green areas in diverse western cities by analyzing the probability distribution of areas and a coefficient that characterize their respective shapes. From the analysis of diverse datasets describing land lots in urban areas, we found that the distribution of built-up areas and natural zones in cities obey inverse power laws with a similar scaling for the cities explored. On the other hand, by studying the distribution of shapes of lots in urban regions, we are able to detect global differences in the spatial structure of the distribution of land. Our findings introduce information about spatial patterns that emerge in the structure of urban settlements; this knowledge is useful for the understanding of urban growth, to improve existing models of cities, in the context of sustainability, in studies about human mobility in urban areas, among other applications. PMID- 29347002 TI - Work and power fluctuations in a critical heat engine. AB - We investigate fluctuations of output work for a class of Stirling heat engines with working fluid composed of interacting units and compare these fluctuations to an average work output. In particular, we focus on engine performance close to a critical point where Carnot's efficiency may be attained at a finite power as reported by M. Campisi and R. Fazio [Nat. Commun. 7, 11895 (2016)2041 172310.1038/ncomms11895]. We show that the variance of work output per cycle scales with the same critical exponent as the heat capacity of the working fluid. As a consequence, the relative work fluctuation diverges unless the output work obeys a rather strict scaling condition, which would be very hard to fulfill in practice. Even under this condition, the fluctuations of work and power do not vanish in the infinite system size limit. Large fluctuations of output work thus constitute inseparable and dominant element in performance of the macroscopic heat engines close to a critical point. PMID- 29347003 TI - Killing (absorption) versus survival in random motion. AB - We address diffusion processes in a bounded domain, while focusing on somewhat unexplored affinities between the presence of absorbing and/or inaccessible boundaries. For the Brownian motion (Levy-stable cases are briefly mentioned) model-independent features are established of the dynamical law that underlies the short-time behavior of these random paths, whose overall lifetime is predefined to be long. As a by-product, the limiting regime of a permanent trapping in a domain is obtained. We demonstrate that the adopted conditioning method, involving the so-called Bernstein transition function, works properly also in an unbounded domain, for stochastic processes with killing (Feynman-Kac kernels play the role of transition densities), provided the spectrum of the related semigroup operator is discrete. The method is shown to be useful in the case, when the spectrum of the generator goes down to zero and no isolated minimal (ground state) eigenvalue is in existence, like in the problem of the long-term survival on a half-line with a sink at origin. PMID- 29347004 TI - Self-propulsion against a moving membrane: Enhanced accumulation and drag force. AB - Self-propulsion (SP) is a main feature of active particles (AP), such as bacteria or biological micromotors, distinguishing them from passive colloids. A renowned consequence of SP is accumulation at static interfaces, even in the absence of hydrodynamic interactions. Here we address the role of SP in the interaction between AP and a moving semipermeable membrane. In particular, we implement a model of noninteracting AP in a channel crossed by a partially penetrable wall, moving at a constant velocity c. With respect to both the cases of passive colloids with c>0 and AP with c=0, the AP with finite c show enhancement of accumulation in front of the obstacle and experience a largely increased drag force. This effect is understood in terms of an effective potential localised at the interface between particles and membrane, of height proportional to ctau/xi, where tau is the AP's reorientation time and xi the width characterizing the surface's smoothness (xi->0 for hard core obstacles). An approximate analytical scheme is able to reproduce the observed density profiles and the measured drag force, in very good agreement with numerical simulations. The effects discussed here can be exploited for automatic selection and filtering of AP with desired parameters. PMID- 29347005 TI - Universality-class crossover by a nonorder field introduced to the pair contact process with diffusion. AB - The one-dimensional pair contact process with diffusion (PCPD), an interacting particle system with diffusion, pair annihilation, and creation by pairs, has defied consensus about the universality class to which it belongs. An argument by Hinrichsen [Physica A 361, 457 (2006)PHYADX0378-437110.1016/j.physa.2005.06.101] claims that freely diffusing particles in the PCPD should play the same role as frozen particles when it comes to the critical behavior. Therefore, the PCPD is claimed to have the same critical phenomena as a model with infinitely many absorbing states that belongs to the directed percolation (DP) universality class. To investigate if diffusing particles are really indistinguishable from frozen particles in the sense of the renormalization group, we study numerically a variation of the PCPD by introducing a nonorder field associated with infinitely many absorbing states. We find that a crossover from the PCPD to DP occurs due to the nonorder field. By studying a similar model, we exclude the possibility that the mere introduction of a nonorder field to one model can entail a nontrivial crossover to another model in the same universality class, thus we attribute the observed crossover to the difference of the universality class of the PCPD from the DP class. PMID- 29347006 TI - Two-time correlation functions and the Lee-Yang zeros for an interacting Bose gas. AB - Two-time correlation functions of a system of Bose particles are studied. We find a relation of zeros of the correlation functions with the Lee-Yang zeros of the partition function of the system. The obtained relation gives the possibility to observe the Lee-Yang zeros experimentally. A particular case of Bose particles on two levels is examined, and zeros of two-time correlation functions and Lee-Yang zeros of the partition function of the system are analyzed. PMID- 29347007 TI - Critical transitions and perturbation growth directions. AB - Critical transitions occur in a variety of dynamical systems. Here we employ quantifiers of chaos to identify changes in the dynamical structure of complex systems preceding critical transitions. As suitable indicator variables for critical transitions, we consider changes in growth rates and directions of covariant Lyapunov vectors. Studying critical transitions in several models of fast-slow systems, i.e., a network of coupled FitzHugh-Nagumo oscillators, models for Josephson junctions, and the Hindmarsh-Rose model, we find that tangencies between covariant Lyapunov vectors are a common and maybe generic feature during critical transitions. We further demonstrate that this deviation from hyperbolic dynamics is linked to the occurrence of critical transitions by using it as an indicator variable and evaluating the prediction success through receiver operating characteristic curves. In the presence of noise, we find the alignment of covariant Lyapunov vectors and changes in finite-time Lyapunov exponents to be more successful in announcing critical transitions than common indicator variables as, e.g., finite-time estimates of the variance. Additionally, we propose a new method for estimating approximations of covariant Lyapunov vectors without knowledge of the future trajectory of the system. We find that these approximated covariant Lyapunov vectors can also be applied to predict critical transitions. PMID- 29347008 TI - Erratum: Correlations in suspensions confined between viscoelastic surfaces: Noncontact microrheology [Phys. Rev. E 96, 022607 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.96.022607. PMID- 29347009 TI - Evolutionary stability concepts in a stochastic environment. AB - Over the past 30 years, evolutionary game theory and the concept of an evolutionarily stable strategy have been not only extensively developed and successfully applied to explain the evolution of animal behaviors, but also widely used in economics and social sciences. Nonetheless, the stochastic dynamical properties of evolutionary games in randomly fluctuating environments are still unclear. In this study, we investigate conditions for stochastic local stability of fixation states and constant interior equilibria in a two-phenotype model with random payoffs following pairwise interactions. Based on this model, we develop the concepts of stochastic evolutionary stability (SES) and stochastic convergence stability (SCS). We show that the condition for a pure strategy to be SES and SCS is more stringent than in a constant environment, while the condition for a constant mixed strategy to be SES is less stringent than the condition to be SCS, which is less stringent than the condition in a constant environment. PMID- 29347010 TI - Erratum: Optimization of finite-size errors in finite-temperature calculations of unordered phases [Phys. Rev. E 91, 062142 (2015)]. AB - This corrects the article DOI: 10.1103/PhysRevE.91.062142. PMID- 29347011 TI - Luminescence from cavitation bubbles deformed in uniform pressure gradients. AB - Presented here are observations that demonstrate how the deformation of millimetric cavitation bubbles by a uniform pressure gradient quenches single collapse luminescence. Our innovative measurement system captures a broad luminescence spectrum (wavelength range, 300-900 nm) from the individual collapses of laser-induced bubbles in water. By varying the bubble size, driving pressure, and perceived gravity level aboard parabolic flights, we probed the limit from aspherical to highly spherical bubble collapses. Luminescence was detected for bubbles of maximum radii within the previously uncovered range, R_{0}=1.5-6 mm, for laser-induced bubbles. The relative luminescence energy was found to rapidly decrease as a function of the bubble asymmetry quantified by the anisotropy parameter zeta, which is the dimensionless equivalent of the Kelvin impulse. As established previously, zeta also dictates the characteristic parameters of bubble-driven microjets. The threshold of zeta beyond which no luminescence is observed in our experiment closely coincides with the threshold where the microjets visibly pierce the bubble and drive a vapor jet during the rebound. The individual fitted blackbody temperatures range between T_{lum}=7000 and T_{lum}=11500 K but do not show any clear trend as a function of zeta. Time resolved measurements using a high-speed photodetector disclose multiple luminescence events at each bubble collapse. The averaged full width at half maximum of the pulse is found to scale with R_{0} and to range between 10 and 20 ns. PMID- 29347012 TI - Steady diffusion in a drift field: A comparison of large-deviation techniques and multiple-scale analysis. AB - A particle with internal unobserved states diffusing in a force field will generally display effective advection-diffusion. The drift velocity is proportional to the mobility averaged over the internal states, or effective mobility, while the effective diffusion has two terms. One is of the equilibrium type and satisfies an Einstein relation with the effective mobility while the other is quadratic in the applied force. In this contribution we present two new methods to obtain these results, on the one hand using large deviation techniques and on the other by a multiple-scale analysis, and compare the two. We consider both systems with discrete internal states and continuous internal states. We show that the auxiliary equations in the multiple-scale analysis can also be derived in second-order perturbation theory in a large deviation theory of a generating function (discrete internal states) or generating functional (continuous internal states). We discuss that measuring the two components of the effective diffusion give a way to determine kinetic rates from only first and second moments of the displacement in steady state. PMID- 29347013 TI - Correlations in magnitude series to assess nonlinearities: Application to multifractal models and heartbeat fluctuations. AB - The correlation properties of the magnitude of a time series are associated with nonlinear and multifractal properties and have been applied in a great variety of fields. Here we have obtained the analytical expression of the autocorrelation of the magnitude series (C_{|x|}) of a linear Gaussian noise as a function of its autocorrelation (C_{x}). For both, models and natural signals, the deviation of C_{|x|} from its expectation in linear Gaussian noises can be used as an index of nonlinearity that can be applied to relatively short records and does not require the presence of scaling in the time series under study. In a model of artificial Gaussian multifractal signal we use this approach to analyze the relation between nonlinearity and multifractallity and show that the former implies the latter but the reverse is not true. We also apply this approach to analyze experimental data: heart-beat records during rest and moderate exercise. For each individual subject, we observe higher nonlinearities during rest. This behavior is also achieved on average for the analyzed set of 10 semiprofessional soccer players. This result agrees with the fact that other measures of complexity are dramatically reduced during exercise and can shed light on its relationship with the withdrawal of parasympathetic tone and/or the activation of sympathetic activity during physical activity. PMID- 29347014 TI - Imperfections, impacts, and the singularity of Euler's disk. AB - The motion of a rigid, spinning disk on a flat surface ends with a dissipation induced finite-time singularity. The problem of finding the dominant energy absorption mechanism during the last phase of the motion generated a lively debate during the past two decades. Various candidates including air drag and different types of friction have been considered, nevertheless impacts have not been examined until now. We investigate the effect of impacts caused by geometric imperfections of the disk and of the underlying flat surface, through analyzing the dynamics of polygonal disks with unilateral point contacts. Similarly to earlier works, we determine the rate of energy absorption under the assumption of a regular pattern of motion analogous to precession-free motion of a rolling disk. In addition, we demonstrate that the asymptotic stability of this motion depends on parameters of the impact model. In the case of instability, the emerging irregular motion is investigated numerically. We conclude that there exists a range of model parameters (small radii of gyration or small restitution coefficients) in which absorption by impacts dominates all previously investigated mechanisms during the last phase of motion. Nevertheless the parameter values associated with a homogeneous disk on a hard surface are typically not in this range, hence the effect of impacts is in that case not dominant. PMID- 29347015 TI - Mathematical and information-geometrical entropy for phenomenological Fourier and non-Fourier heat conduction. AB - The second law of thermodynamics governs the direction of heat transport, which provides the foundational definition of thermodynamic Clausius entropy. The definitions of entropy are further generalized for the phenomenological heat transport models in the frameworks of classical irreversible thermodynamics and extended irreversible thermodynamics (EIT). In this work, entropic functions from mathematics are combined with phenomenological heat conduction models and connected to several information-geometrical conceptions. The long-time behaviors of these mathematical entropies exhibit a wide diversity and physical pictures in phenomenological heat conductions, including the tendency to thermal equilibrium, and exponential decay of nonequilibrium and asymptotics, which build a bridge between the macroscopic and microscopic modelings. In contrast with the EIT entropies, the mathematical entropies expressed in terms of the internal energy function can avoid singularity paired with nonpositive local absolute temperature caused by non-Fourier heat conduction models. PMID- 29347016 TI - Modeling a photoinduced planar-to-homeotropic anchoring transition triggered by surface azobenzene units in a nematic liquid crystal. AB - The performance of light-controlled liquid crystal anchoring surfaces depends on the nature of the photosensitive moieties and on the concentration of spacer units. Here, we study the kinetics of photosensitive liquid crystal cells that incorporate an azobenzene-based self-assembled monolayer. We characterize the photoinduced homeotropic-to-planar transition and the subsequent reverse relaxation in terms of the underlying isomerization of the photosensitive layer. We show that the response time can be precisely adjusted by tuning the lateral packing of azobenzene units by means of inert spacer molecules. Using simple kinetic assumptions and a well-known model for the energetics of liquid crystal anchoring we are able to capture the details of the optical microscopy experimental observations. Our analysis provides fitted values for all the relevant material parameters, including the zenithal and the azimuthal anchoring strength. PMID- 29347017 TI - Friction force regimes and the conditions for endless penetration of an intruder into a granular medium. AB - An intruder penetrating into a granular column experiences a depth-dependent friction force F(z). Different regimes of F(z) have been measured depending on the experimental design: a nearly linear dependence for shallow penetrations, total saturation at large depths, and an exponential increase when the intruder approaches the bottom of the granular bed. We report here an experiment that allows us to measure the different regimes in a single run during the quasistatic descent of a sphere in a light granular medium. From the analysis of the resistance in the saturation zone, it was found that F(z) follows a cube-power law dependence on the intruder diameter and an exponential increase with the packing fraction of the bed. Moreover, we determine the critical mass m_{c} required to observe infinite penetration and its dependence on the above parameters. Finally, we use our results to estimate the final penetration depth reached by intruders of masses m0^{+}, which displays a nontrivial behavior with the strength of disorder R. We verify our predictions with numerical simulations. In the second part of the paper, motivated by avalanche gap distributions in driven disordered amorphous solids, we study a long-range antiferromagnetic RFIM. This model displays a gapped behavior P(DeltaH)=0 up to a system size dependent offset value DeltaH_{off}, and P(DeltaH)~(DeltaH DeltaH_{off})^{theta} as DeltaH->H_{off}^{+}. We perform numerical simulations on this model and determine theta~0.95(5). We also discuss mechanisms which would lead to a nonzero exponent theta for general spin models with quenched random fields. PMID- 29347022 TI - Destabilization of a liquid metal by nonuniform Joule heating. AB - We study the effect of an impressing AC magnetic field at the bottom of a liquid metal layer of thickness h. In this situation the fluid is set in motion by the buoyancy forces caused by internal heat sources. The heat sources, caused by the Joule effect induced by the AC field, present an exponentially decaying profile, with characteristic length delta. As the magnetic field is horizontal, the Lorentz force has no influence on the dynamics of the system since it contributes only to the magnetic pressure. We propose an analysis of both the transient and fully developed regimes using linear stability analysis (LSA) and direct numerical simulations (DNSs). The transient period is governed by the temporal evolution of the temperature field as well as the development of the convective instability, which can be concomitant and therefore requires adopting a transient LSA algorithm to track these two effects. The DNSs have been performed for various distributions of the heat sources and various total heat input. This corresponds to independently varying delta/h in the range 0.04<=delta/h<=0.45 and a Rayleigh number 1.1*10^{4}<=Ra<=1.2*10^{5}. We observe the relaxation of the temperature up to the steady conductive profile before the transition to the nonlinear regime when Ra is small, whereas for larger Ra, nonlinear effects appear during the relaxation of the temperature profile. The unsteadiness of the temperature field significantly alters the development of the instability because of a much smaller growth rate. Surprisingly, we observe that delta/h has only a limited influence on averaged quantities as well as on the patterns for both the linear and nonlinear regimes. This comes with the fact that the profiles present an apparent reflectional symmetry, despite the asymmetry of the governing equations. PMID- 29347023 TI - Stability of the quantum Sherrington-Kirkpatrick spin glass model. AB - I study in detail the quantum Sherrington-Kirkpatrick (SK) model, i.e., the infinite-range Ising spin glass in a transverse field, by solving numerically the effective one-dimensional model that the quantum SK model can be mapped to in the thermodynamic limit. I find that the replica symmetric solution is unstable down to zero temperature, in contrast to some previous claims, and so there is not only a line of transitions in the (longitudinal) field-temperature plane (the de Almeida-Thouless, AT, line) where replica symmetry is broken, but also a quantum de Almeida-Thouless (QuAT) line in the transverse field-longitudinal field plane at T=0. If the QuAT line also occurs in models with short-range interactions its presence might affect the performance of quantum annealers when solving spin glass-type problems with a bias (i.e., magnetic field). PMID- 29347024 TI - Dimensionless embedding for nonlinear time series analysis. AB - Recently, infinite-dimensional delay coordinates (InDDeCs) have been proposed for predicting high-dimensional dynamics instead of conventional delay coordinates. Although InDDeCs can realize faster computation and more accurate short-term prediction, it is still not well-known whether InDDeCs can be used in other applications of nonlinear time series analysis in which reconstruction is needed for the underlying dynamics from a scalar time series generated from a dynamical system. Here, we give theoretical support for justifying the use of InDDeCs and provide numerical examples to show that InDDeCs can be used for various applications for obtaining the recurrence plots, correlation dimensions, and maximal Lyapunov exponents, as well as testing directional couplings and extracting slow-driving forces. We demonstrate performance of the InDDeCs using the weather data. Thus, InDDeCs can eventually realize "dimensionless embedding" while we enjoy faster and more reliable computations. PMID- 29347025 TI - Distribution of shortest path lengths in a class of node duplication network models. AB - We present analytical results for the distribution of shortest path lengths (DSPL) in a network growth model which evolves by node duplication (ND). The model captures essential properties of the structure and growth dynamics of social networks, acquaintance networks, and scientific citation networks, where duplication mechanisms play a major role. Starting from an initial seed network, at each time step a random node, referred to as a mother node, is selected for duplication. Its daughter node is added to the network, forming a link to the mother node, and with probability p to each one of its neighbors. The degree distribution of the resulting network turns out to follow a power-law distribution, thus the ND network is a scale-free network. To calculate the DSPL we derive a master equation for the time evolution of the probability P_{t}(L=l), l=1,2,?, where L is the distance between a pair of nodes and t is the time. Finding an exact analytical solution of the master equation, we obtain a closed form expression for P_{t}(L=l). The mean distance _{t} and the diameter Delta_{t} are found to scale like lnt, namely, the ND network is a small-world network. The variance of the DSPL is also found to scale like lnt. Interestingly, the mean distance and the diameter exhibit properties of a small-world network, rather than the ultrasmall-world network behavior observed in other scale-free networks, in which _{t}~lnlnt. PMID- 29347026 TI - Analytical theory of the hydrophobic effect of solutes in water. AB - We develop an analytical statistical-mechanical model for hydrophobic solvation in water. In this three-dimensional Mercedes-Benz-like model, two neighboring waters have three possible interaction states: a radial van der Waals interaction, a tetrahedral orientation-dependent hydrogen-bonding interaction, or no interaction. Nonpolar solutes are modeled as van der Waals particles of different radii. The model is sufficiently simple that we can calculate the partition function and thermal and volumetric properties of solvation versus temperature, pressure, and solute radius. Predictions are in good agreement with results of Monte Carlo simulations. And their trends agree with experiments on hydrophobic solute insertion. The theory shows that first-shell waters are more highly structured than bulk waters, because of hydrogen bonding, and that that structure melts out faster with temperature than it does in bulk waters. Because the theory is analytical, it can explore a broad range of solvation properties and anomalies of water, at minimal computational expense. PMID- 29347027 TI - Thermal gas rectification using a sawtooth channel. AB - We study the rectification of a two-dimensional thermal gas in a channel of asymmetric dissipative walls. For an ensemble of smooth Lennard-Jones particles, our numerical simulations reveal a nonmonotonic dependence of the flux on the thermostat temperature, channel asymmetry, and particle density, with three distinct regimes. Theoretical arguments are developed to shed light on the functional dependence of the flux on the model parameters. PMID- 29347028 TI - Continuous-time random-walk model for anomalous diffusion in expanding media. AB - Expanding media are typical in many different fields, e.g., in biology and cosmology. In general, a medium expansion (contraction) brings about dramatic changes in the behavior of diffusive transport properties such as the set of positional moments and the Green's function. Here, we focus on the characterization of such effects when the diffusion process is described by the continuous-time random-walk (CTRW) model. As is well known, when the medium is static this model yields anomalous diffusion for a proper choice of the probability density function (pdf) for the jump length and the waiting time, but the behavior may change drastically if a medium expansion is superimposed on the intrinsic random motion of the diffusing particle. For the case where the jump length and the waiting time pdfs are long-tailed, we derive a general bifractional diffusion equation which reduces to a normal diffusion equation in the appropriate limit. We then study some particular cases of interest, including Levy flights and subdiffusive CTRWs. In the former case, we find an analytical exact solution for the Green's function (propagator). When the expansion is sufficiently fast, the contribution of the diffusive transport becomes irrelevant at long times and the propagator tends to a stationary profile in the comoving reference frame. In contrast, for a contracting medium a competition between the spreading effect of diffusion and the concentrating effect of contraction arises. In the specific case of a subdiffusive CTRW in an exponentially contracting medium, the latter effect prevails for sufficiently long times, and all the particles are eventually localized at a single point in physical space. This "big crunch" effect, totally absent in the case of normal diffusion, stems from inefficient particle spreading due to subdiffusion. We also derive a hierarchy of differential equations for the moments of the transport process described by the subdiffusive CTRW model in an expanding medium. From this hierarchy, the full time evolution of the second-order moment is obtained for some specific types of expansion. In the case of an exponential expansion, exact recurrence relations for the Laplace-transformed moments are obtained, whence the long-time behavior of moments of arbitrary order is subsequently inferred. Our analytical and numerical results for both Levy flights and subdiffusive CTRWs confirm the intuitive expectation that the medium expansion hinders the mixing of diffusive particles occupying separate regions. In the case of Levy flights, we quantify this effect by means of the so-called "Levy horizon." PMID- 29347029 TI - Transient chaos and associated system-intrinsic switching of spacetime patterns in two synaptically coupled layers of Morris-Lecar neurons. AB - Spatiotemporal chaos collapses to either a rest state or a propagating pulse solution in a single layer of diffusively coupled, excitable Morris-Lecar neurons. Weak synaptic coupling of two such layers reveals system intrinsic switching of spatiotemporal activity patterns within and between the layers at irregular times. Within a layer, switching sequences include spatiotemporal chaos, erratic and regular pulse propagation, spontaneous network wide neuron activity, and rest state. A momentary substantial reduction in neuron activity in one layer can reinitiate transient spatiotemporal chaos in the other layer, which can induce a swap of spatiotemporal chaos with a pulse state between the layers. Presynaptic input maximizes the distance between propagating pulses, in contrast to pulse merging in the absence of synapses. PMID- 29347030 TI - Phase diagrams for sticky rods in bulk and in a monolayer from a lattice free energy functional for anisotropic particles with depletion attractions. AB - A density functional of fundamental measure type for a lattice model of anisotropic particles with hard-core repulsions and effective attractions is derived in the spirit of the Asakura-Oosawa model. Through polymeric lattice particles of various size and shape, effective attractions of different strength and range between the colloids can be generated. The functional is applied to the determination of phase diagrams for sticky rods of length L in two dimensions, in three dimensions, and in a monolayer system on a neutral substrate. In all cases, there is a competition between ordering and gas-liquid transitions. In two dimensions, this gives rise to a tricritical point, whereas in three dimensions, the isotropic-nematic transition crosses over smoothly to a gas-nematic liquid transition. The richest phase behavior is found for the monolayer system. For L=2, two stable critical points are found corresponding to a standard gas-liquid transition and a nematic liquid-liquid transition. For L=3, the gas-liquid transition becomes metastable. PMID- 29347031 TI - Fractality in nonequilibrium steady states of quasiperiodic systems. AB - We investigate the nonequilibrium response of quasiperiodic systems to boundary driving. In particular, we focus on the Aubry-Andre-Harper model at its metal insulator transition and the diagonal Fibonacci model. We find that opening the system at the boundaries provides a viable experimental technique to probe its underlying fractality, which is reflected in the fractal spatial dependence of simple observables (such as magnetization) in the nonequilibrium steady state. We also find that the dynamics in the nonequilibrium steady state depends on the length of the chain chosen: generic length chains harbour qualitatively slower transport (different scaling exponent) than Fibonacci length chains, which is in turn slower than in the closed system. We conjecture that such fractal nonequilibrium steady states should arise in generic driven critical systems that have fractal properties. PMID- 29347032 TI - Subspace dynamic mode decomposition for stochastic Koopman analysis. AB - The analysis of nonlinear dynamical systems based on the Koopman operator is attracting attention in various applications. Dynamic mode decomposition (DMD) is a data-driven algorithm for Koopman spectral analysis, and several variants with a wide range of applications have been proposed. However, popular implementations of DMD suffer from observation noise on random dynamical systems and generate inaccurate estimation of the spectra of the stochastic Koopman operator. In this paper, we propose subspace DMD as an algorithm for the Koopman analysis of random dynamical systems with observation noise. Subspace DMD first computes the orthogonal projection of future snapshots to the space of past snapshots and then estimates the spectra of a linear model, and its output converges to the spectra of the stochastic Koopman operator under standard assumptions. We investigate the empirical performance of subspace DMD with several dynamical systems and show its utility for the Koopman analysis of random dynamical systems. PMID- 29347033 TI - Basins of attraction of the bistable region of time-delayed cutting dynamics. AB - This paper investigates the effects of bistability in a nonsmooth time-delayed dynamical system, which is often manifested in science and engineering. Previous studies on cutting dynamics have demonstrated persistent coexistence of chatter and chatter-free responses in a bistable region located in the linearly stable zone. As there is no widely accepted definition of basins of attraction for time delayed systems, bistable regions are coined as unsafe zones (UZs). Hence, we have attempted to define the basins of attraction and stability basins for a typical delayed system to get insight into the bistability in systems with time delays. Special attention was paid to the influences of delayed initial conditions, starting points, and states at time zero on the long-term dynamics of time-delayed systems. By using this concept, it has been confirmed that the chatter is prone to occur when the waviness frequency in the workpiece surface coincides with the effective natural frequency of the cutting process. Further investigations unveil a thin "boundary layer" inside the UZ in the immediate vicinity of the stability boundary, in which we observe an extremely fast growth of the chatter basin stability. The results reveal that the system is more stable when the initial cutting depth is smaller. The physics of the tool deflection at the instant of the tool-workpiece engagement is used to evaluate the cutting safety, and the safe level could be zero when the geometry of tool engagement is unfavorable. Finally, the basins of attraction are used to quench the chatter by a single strike, where the resultant "islands" offer an opportunity to suppress the chatter even when the cutting is very close to the stability boundary. PMID- 29347034 TI - Power-law citation distributions are not scale-free. AB - We analyze time evolution of statistical distributions of citations to scientific papers published in the same year. While these distributions seem to follow the power-law dependence we find that they are nonstationary and the exponent of the power-law fit decreases with time and does not come to saturation. We attribute the nonstationarity of citation distributions to different longevity of the low cited and highly cited papers. By measuring citation trajectories of papers we found that citation careers of the low-cited papers come to saturation after 10 15 years while those of the highly cited papers continue to increase indefinitely: The papers that exceed some citation threshold become runaways. Thus, we show that although citation distribution can look as a power-law dependence, it is not scale free and there is a hidden dynamic scale associated with the onset of runaways. We compare our measurements to our recently developed model of citation dynamics based on copying-redirection-triadic closure and find explanations to our empirical observations. PMID- 29347035 TI - Aging transition in systems of oscillators with global distributed-delay coupling. AB - We consider a globally coupled network of active (oscillatory) and inactive (nonoscillatory) oscillators with distributed-delay coupling. Conditions for aging transition, associated with suppression of oscillations, are derived for uniform and gamma delay distributions in terms of coupling parameters and the proportion of inactive oscillators. The results suggest that for the uniform distribution increasing the width of distribution for the same mean delay allows aging transition to happen for a smaller coupling strength and a smaller proportion of inactive elements. For gamma distribution with sufficiently large mean time delay, it may be possible to achieve aging transition for an arbitrary proportion of inactive oscillators, as long as the coupling strength lies in a certain range. PMID- 29347036 TI - Front propagation in weakly subcritical pattern-forming systems. AB - The speed and stability of fronts near a weakly subcritical steady-state bifurcation are studied, focusing on the transition between pushed and pulled fronts in the bistable Ginzburg-Landau equation. Exact nonlinear front solutions are constructed and their stability properties investigated. In some cases, the exact solutions are stable but are not selected from arbitrary small amplitude initial conditions. In other cases, the exact solution is unstable to modulational instabilities which select a distinct front. Chaotic front dynamics may result and is studied using numerical techniques. PMID- 29347037 TI - Escape of coupled Brownian particles across a fluctuating barrier. AB - The escape of two harmonically coupled Brownian particles across the fluctuating barrier of a bistable potential is investigated with correlated additive and multiplicative fluctuations. Positive correlations enhance the rate of escape across the barrier when the coupling is effective, whereas for weakly coupled particles, escape becomes difficult. It is found that the system exhibits the phenomenon of resonant activation when the rate of barrier fluctuations is comparable to the relaxation time in the bistable potential. Using a decoupling ansatz, we derive the Markovian limit of the problem in the steady state, under the constraint that the barriers fluctuate on a time scale faster than the relative oscillation of the two particles. Adiabatic elimination of the fast variable of the dynamical system is discussed in appropriate limits. PMID- 29347038 TI - Shock propagation in locally driven granular systems. AB - We study shock propagation in a system of initially stationary hard spheres that is driven by a continuous injection of particles at the origin. The disturbance created by the injection of energy spreads radially outward through collisions between particles. Using scaling arguments, we determine the exponent characterizing the power-law growth of this disturbance in all dimensions. The scaling functions describing the various physical quantities are determined using large-scale event-driven simulations in two and three dimensions for both elastic and inelastic systems. The results are shown to describe well the data from two different experiments on granular systems that are similarly driven. PMID- 29347039 TI - Recurrence relations in one-dimensional Ising models. AB - The exact finite-size partition function for the nonhomogeneous one-dimensional (1D) Ising model is found through an approach using algebra operators. Specifically, in this paper we show that the partition function can be computed through a trace from a linear second-order recurrence relation with nonconstant coefficients in matrix form. A relation between the finite-size partition function and the generalized Lucas polynomials is found for the simple homogeneous model, thus establishing a recursive formula for the partition function. This is an important property and it might indicate the possible existence of recurrence relations in higher-dimensional Ising models. Moreover, assuming quenched disorder for the interactions within the model, the quenched averaged magnetic susceptibility displays a nontrivial behavior due to changes in the ferromagnetic concentration probability. PMID- 29347040 TI - Electrical autonomous Brownian gyrator. AB - We study experimentally and theoretically the steady-state dynamics of a simple stochastic electronic system featuring two resistor-capacitor circuits coupled by a third capacitor. The resistors are subject to thermal noises at real temperatures. The voltage fluctuation across each resistor can be compared to a one-dimensional Brownian motion. However, the collective dynamical behavior, when the resistors are subject to distinct thermal baths, is identical to that of a Brownian gyrator, as first proposed by Filliger and Reimann [Phys. Rev. Lett. 99, 230602 (2007)PRLTAO0031-900710.1103/PhysRevLett.99.230602]. The average gyrating dynamics is originated from the absence of detailed balance due to unequal thermal baths. We look into the details of this stochastic gyrating dynamics, its dependences on the temperature difference and coupling strength, and the mechanism of heat transfer through this simple electronic circuit. Our work affirms the general principle and the possibility of a Brownian ratchet working near room temperature scale. PMID- 29347041 TI - Collision rate coefficient for charged dust grains in the presence of linear shear. AB - Like and oppositely charged particles or dust grains in linear shear flows are often driven to collide with one another by fluid and/or electrostatic forces, which can strongly influence particle-size distribution evolution. In gaseous media, collisions in shear are further complicated because particle inertia can influence differential motion. Expressions for the collision rate coefficient have not been developed previously which simultaneously account for the influences of linear shear, particle inertia, and electrostatic interactions. Here, we determine the collision rate coefficient accounting for the aforementioned effects by determining the collision area, i.e., the area of the plane perpendicular to the shear flow defining the relative initial locations of particles which will collide with one another. Integration of the particle flux over this area yields the collision rate. Collision rate calculations are parametrized as an enhancement factor, i.e., the ratio of the collision rate considering potential interactions and inertia to the traditional collision rate considering laminar shear only. For particles of constant surface charge density, the enhancement factor is found dependent only on the Stokes number (quantifying particle inertia), the electrostatic energy to shear energy ratio, and the ratio of colliding particle radii. Enhancement factors are determined for Stokes numbers in the 0-10 range and energy ratios up to 5. Calculations show that the influences of both electrostatic interactions and inertia are significant; for inertialess (St=0) equal-sized and oppositely charged particles, we find that even at energy ratios as low as 0.2, enhancement factors are in excess of 2. For the same situation but like-charged particles, enhancement factors fall below 0.5. Increasing the Stokes number acts to mitigate the influence of electrostatic potentials for both like and oppositely charged particles; i.e., inertia reduces the enhancement factor for oppositely charged particles and increases it for like charged particles. Uniquely, at elevated Stokes numbers with attractive potentials we find collisionless "pockets" within the collision area, which are regions completely bounded by the collision area but within which collisions do not occur. Regression equations to results are provided, enabling calculation of the enhancement factor as a function of energy ratio and Stokes number. In total, this study both leads to insight into the collision dynamics of finite-inertia, charged particles in shear flows, and provides a means to simply calculate the particle-particle collision rate coefficient. PMID- 29347042 TI - Probing the excited-state quantum phase transition through statistics of Loschmidt echo and quantum work. AB - By analyzing the probability distributions of the Loschmidt echo (LE) and quantum work, we examine the nonequilibrium effects of a quantum many-body system, which exhibits an excited-state quantum phase transition (ESQPT). We find that depending on the value of the controlling parameter the distribution of the LE displays different patterns. At the critical point of the ESQPT, both the averaged LE and the averaged work show a cusplike shape. Furthermore, by employing the finite-size scaling analysis of the averaged work, we obtain the critical exponent of the ESQPT. Finally, we show that at the critical point of ESQPT the eigenstate is a highly localized state, further highlighting the influence of the ESQPT on the properties of the many-body system. PMID- 29347043 TI - Scaling laws for the mechanics of loose and cohesive granular materials based on Baxter's sticky hard spheres. AB - We have conducted discrete element simulations (pfc3d) of very loose, cohesive, granular assemblies with initial configurations which are drawn from Baxter's sticky hard sphere (SHS) ensemble. The SHS model is employed as a promising auxiliary means to independently control the coordination number z_{c} of cohesive contacts and particle volume fraction phi of the initial states. We focus on discerning the role of z_{c} and phi for the elastic modulus, failure strength, and the plastic consolidation line under quasistatic, uniaxial compression. We find scaling behavior of the modulus and the strength, which both scale with the cohesive contact density nu_{c}=z_{c}phi of the initial state according to a power law. In contrast, the behavior of the plastic consolidation curve is shown to be independent of the initial conditions. Our results show the primary control of the initial contact density on the mechanics of cohesive granular materials for small deformations, which can be conveniently, but not exclusively explored within the SHS-based assembling procedure. PMID- 29347044 TI - Monte Carlo simulations of the XY vectorial Blume-Emery-Griffiths model in multilayer films for ^{3}He-^{4}He mixtures. AB - The XY vectorial generalization of the Blume-Emery-Griffiths (XY-VBEG) model, which is suitable to be applied to the study of ^{3}He-^{4}He mixtures, is treated on thin films structure and its thermodynamical properties are analyzed as a function of the film thickness. We employ extensive and up-to-date Monte Carlo simulations consisting of hybrid algorithms combining lattice-gas moves, Metropolis, Wolff, and super-relaxation procedures to overcome the critical slowing down and correlations among different spin configurations of the system. We also make use of single histogram techniques to get the behavior of the thermodynamical quantities close to the corresponding transition temperatures. Thin films of the XY-VBEG model present a quite rich phase diagram with Berezinskii-Kosterlitz-Thouless (BKT) transitions, BKT endpoints, and isolated critical points. As one varies the impurity concentrations along the layers, and in the limit of infinite film thickness, there is a coalescence of the BKT transition endpoint and the isolated critical point into a single, unique tricritical point. In addition, when mimicking the behavior of thin films of ^{3}He-^{4}He mixtures, one obtains that the concentration of ^{3}He atoms decreases from the outer layers to the inner layers of the film, meaning that the superfluid particles tend to locate in the bulk of the system. PMID- 29347045 TI - Effect of disorder on shrinkage-induced fragmentation of a thin brittle layer. AB - We investigate the effect of the amount of disorder on the shrinkage-induced cracking of a thin brittle layer attached to a substrate. Based on a discrete element model we study how the dynamics of cracking and the size of fragments evolve when the amount of disorder is varied. In the model a thin layer is discretized on a random lattice of Voronoi polygons attached to a substrate. Two sources of disorder are considered: structural disorder captured by the local variation of the stiffness and strength disorder represented by the random strength of cohesive elements between polygons. Increasing the amount of strength disorder, our calculations reveal a transition from a cellular crack pattern, generated by the sequential branching and merging of cracks, to a disordered ensemble of cracks where the merging of randomly nucleated microcracks dominate. In the limit of low disorder, the statistics of fragment size is described by a log-normal distribution; however, in the limit of high disorder, a power-law distribution is obtained. PMID- 29347047 TI - Interface tension in the improved Blume-Capel model. AB - We study interfaces with periodic boundary conditions in the low-temperature phase of the improved Blume-Capel model on the simple cubic lattice. The interface free energy is defined by the difference of the free energy of a system with antiperiodic boundary conditions in one of the directions and that of a system with periodic boundary conditions in all directions. It is obtained by integration of differences of the corresponding internal energies over the inverse temperature. These differences can be computed efficiently by using a variance reduced estimator that is based on the exchange cluster algorithm. The interface tension is obtained from the interface free energy by using predictions based on effective interface models. By using our numerical results for the interface tension sigma and the correlation length xi obtained in previous work, we determine the universal amplitude ratios R_{2nd,+}=sigma_{0}f_{2nd,+}^{2}=0.3863(6), R_{2nd,-}=sigma_{0}f_{2nd, }^{2}=0.1028(1), and R_{exp,-}=sigma_{0}f_{exp,-}^{2}=0.1077(3). Our results are consistent with those obtained previously for the three-dimensional Ising model, confirming the universality hypothesis. PMID- 29347046 TI - Cortical geometry as a determinant of brain activity eigenmodes: Neural field analysis. AB - Perturbation analysis of neural field theory is used to derive eigenmodes of neural activity on a cortical hemisphere, which have previously been calculated numerically and found to be close analogs of spherical harmonics, despite heavy cortical folding. The present perturbation method treats cortical folding as a first-order perturbation from a spherical geometry. The first nine spatial eigenmodes on a population-averaged cortical hemisphere are derived and compared with previous numerical solutions. These eigenmodes contribute most to brain activity patterns such as those seen in electroencephalography and functional magnetic resonance imaging. The eigenvalues of these eigenmodes are found to agree with the previous numerical solutions to within their uncertainties. Also in agreement with the previous numerics, all eigenmodes are found to closely resemble spherical harmonics. The first seven eigenmodes exhibit a one-to-one correspondence with their numerical counterparts, with overlaps that are close to unity. The next two eigenmodes overlap the corresponding pair of numerical eigenmodes, having been rotated within the subspace spanned by that pair, likely due to second-order effects. The spatial orientations of the eigenmodes are found to be fixed by gross cortical shape rather than finer-scale cortical properties, which is consistent with the observed intersubject consistency of functional connectivity patterns. However, the eigenvalues depend more sensitively on finer scale cortical structure, implying that the eigenfrequencies and consequent dynamical properties of functional connectivity depend more strongly on details of individual cortical folding. Overall, these results imply that well established tools from perturbation theory and spherical harmonic analysis can be used to calculate the main properties and dynamics of low-order brain eigenmodes. PMID- 29347048 TI - Distribution of randomly diffusing particles in inhomogeneous media. AB - Diffusion can be conceptualized, at microscopic scales, as the random hopping of particles between neighboring lattice sites. In the case of diffusion in inhomogeneous media, distinct spatial domains in the system may yield distinct particle hopping rates. Starting from the master equations (MEs) governing diffusion in inhomogeneous media we derive here, for arbitrary spatial dimensions, the deterministic lattice equations (DLEs) specifying the average particle number at each lattice site for randomly diffusing particles in inhomogeneous media. We consider the case of free (Fickian) diffusion with no steric constraints on the maximum particle number per lattice site as well as the case of diffusion under steric constraints imposing a maximum particle concentration. We find, for both transient and asymptotic regimes, excellent agreement between the DLEs and kinetic Monte Carlo simulations of the MEs. The DLEs provide a computationally efficient method for predicting the (average) distribution of randomly diffusing particles in inhomogeneous media, with the number of DLEs associated with a given system being independent of the number of particles in the system. From the DLEs we obtain general analytic expressions for the steady-state particle distributions for free diffusion and, in special cases, diffusion under steric constraints in inhomogeneous media. We find that, in the steady state of the system, the average fraction of particles in a given domain is independent of most system properties, such as the arrangement and shape of domains, and only depends on the number of lattice sites in each domain, the particle hopping rates, the number of distinct particle species in the system, and the total number of particles of each particle species in the system. Our results provide general insights into the role of spatially inhomogeneous particle hopping rates in setting the particle distributions in inhomogeneous media. PMID- 29347049 TI - Deviation from fluctuation-dissipation relation for driven superdiffusion: Polymer stretching as an example. AB - We discuss a deviation of the fluctuation-dissipation relation (FDR) in a driven superdiffusive system as exemplified by polymer stretching. The superdiffusion is found by monitoring momentum transfer to a tracer, which is a conjugate observable with the position. Molecular-dynamics simulation demonstrates that the FDR deviates during the nonequilibrium transient process. We then propose nonequilibrium mode analysis for superdiffusion, which is a counterpart to that for driven subdiffusion. The mode analysis yields results that are in qualitative agreement with the simulation results, suggesting that the fluctuations of the stiffness in the system from initial equilibrium to stretching account for the FDR deviation. PMID- 29347050 TI - Manipulation of double-stranded DNA melting by force. AB - By integrating elasticity-as described by the Gaussian network model-with bond binding energies that distinguish between different base-pair identities and stacking configurations, we study the force induced melting of a double-stranded DNA (dsDNA). Our approach is a generalization of our previous study of thermal dsDNA denaturation [J. Chem. Phys. 145, 144101 (2016)JCPSA60021 960610.1063/1.4964285] to that induced by force at finite temperatures. It allows us to obtain semimicroscopic information about the opening of the chain, such as whether the dsDNA opens from one of the ends or from the interior, forming an internal bubble. We study different types of force manipulation: (i) "end unzipping," with force acting at a single end base pair perpendicular to the helix, (ii) "midunzipping," with force acting at a middle base pair perpendicular to the helix, and (iii) "end shearing," where the force acts at opposite ends along the helix. By monitoring the free-energy landscape and probability distribution of intermediate denaturation states, we show that different dominant intermediate states are stabilized depending on the type of force manipulation used. In particular, the bubble state of the sequence L60B36, which we have previously found to be a stable state during thermal denaturation, is absent for end unzipping and end shearing, whereas very similar bubbles are stabilized by midunzipping, or when the force location is near the middle of the chain. Ours results offer a simple tool for stabilizing bubbles and loops using force manipulations at different temperatures, and may implicate on the mechanism in which DNA enzymes or motors open regions of the chain. PMID- 29347051 TI - Enhanced capital-asset pricing model for the reconstruction of bipartite financial networks. AB - Reconstructing patterns of interconnections from partial information is one of the most important issues in the statistical physics of complex networks. A paramount example is provided by financial networks. In fact, the spreading and amplification of financial distress in capital markets are strongly affected by the interconnections among financial institutions. Yet, while the aggregate balance sheets of institutions are publicly disclosed, information on single positions is mostly confidential and, as such, unavailable. Standard approaches to reconstruct the network of financial interconnection produce unrealistically dense topologies, leading to a biased estimation of systemic risk. Moreover, reconstruction techniques are generally designed for monopartite networks of bilateral exposures between financial institutions, thus failing in reproducing bipartite networks of security holdings (e.g., investment portfolios). Here we propose a reconstruction method based on constrained entropy maximization, tailored for bipartite financial networks. Such a procedure enhances the traditional capital-asset pricing model (CAPM) and allows us to reproduce the correct topology of the network. We test this enhanced CAPM (ECAPM) method on a dataset, collected by the European Central Bank, of detailed security holdings of European institutional sectors over a period of six years (2009-2015). Our approach outperforms the traditional CAPM and the recently proposed maximum entropy CAPM both in reproducing the network topology and in estimating systemic risk due to fire sales spillovers. In general, ECAPM can be applied to the whole class of weighted bipartite networks described by the fitness model. PMID- 29347052 TI - Capacitively coupled rf discharge with a large amount of microparticles: Spatiotemporal emission pattern and microparticle arrangement. AB - The effect of micron-sized particles on a low-pressure capacitively coupled rf discharge is studied both experimentally and using numerical simulations. In the laboratory experiments, microparticle clouds occupying a considerable fraction of the discharge volume are supported against gravity with the help of the thermophoretic force. The spatiotemporally resolved optical emission measurements are performed with different arrangements of microparticles. The numerical simulations are carried out on the basis of a one-dimensional hybrid (fluid kinetic) discharge model describing the interaction between plasma and microparticles in a self-consistent way. The study is focused on the role of microparticle arrangement in interpreting the spatiotemporal emission measurements. We show that it is not possible to reproduce simultaneously the observed microparticle arrangement and emission pattern in the framework of the considered one-dimensional model. This disagreement can be attributed to the two dimensional effects (e.g., radial diffusion of the plasma components) or to the lack of the proper description of the sharp void boundary in the frame of fluid approach. PMID- 29347053 TI - Radiation-pressure-driven ion Weibel instability and collisionless shocks. AB - The Weibel instability from counterstreaming plasma flows is a basic process highly relevant for collisionless shock formation in astrophysics. In this paper we investigate, via two- and three-dimensional simulations, suitable configurations for laboratory investigations of the ion Weibel instability (IWI) driven by a fast quasineutral plasma flow launched into the target via the radiation pressure of an ultra-high-intensity laser pulse ("hole-boring" process). The use of S-polarized light at oblique incidence is found to be an optimal configuration for driving IWI, as it prevents the development of surface rippling observed at normal incidence that would lead to strong electron heating and would favor competing instabilities. Conditions for the evolution of IWI into a collisionless shock are also investigated. PMID- 29347054 TI - Chaos-based wireless communication resisting multipath effects. AB - In additive white Gaussian noise channel, chaos has been shown to be the optimal coherent communication waveform in the sense of using a very simple matched filter to maximize the signal-to-noise ratio. Recently, Lyapunov exponent spectrum of the chaotic signals after being transmitted through a wireless channel has been shown to be unaltered, paving the way for wireless communication using chaos. In wireless communication systems, inter-symbol interference caused by multipath propagation is one of the main obstacles to achieve high bit transmission rate and low bit-error rate (BER). How to resist the multipath effect is a fundamental problem in a chaos-based wireless communication system (CWCS). In this paper, a CWCS is built to transmit chaotic signals generated by a hybrid dynamical system and then to filter the received signals by using the corresponding matched filter to decrease the noise effect and to detect the binary information. We find that the multipath effect can be effectively resisted by regrouping the return map of the received signal and by setting the corresponding threshold based on the available information. We show that the optimal threshold is a function of the channel parameters and of the information symbols. Practically, the channel parameters are time-variant, and the future information symbols are unavailable. In this case, a suboptimal threshold is proposed, and the BER using the suboptimal threshold is derived analytically. Simulation results show that the CWCS achieves a remarkable competitive performance even under inaccurate channel parameters. PMID- 29347055 TI - Renormalization group theory outperforms other approaches in statistical comparison between upscaling techniques for porous media. AB - Determining the pressure differential required to achieve a desired flow rate in a porous medium requires solving Darcy's law, a Laplace-like equation, with a spatially varying tensor permeability. In various scenarios, the permeability coefficient is sampled at high spatial resolution, which makes solving Darcy's equation numerically prohibitively expensive. As a consequence, much effort has gone into creating upscaled or low-resolution effective models of the coefficient while ensuring that the estimated flow rate is well reproduced, bringing to the fore the classic tradeoff between computational cost and numerical accuracy. Here we perform a statistical study to characterize the relative success of upscaling methods on a large sample of permeability coefficients that are above the percolation threshold. We introduce a technique based on mode-elimination renormalization group theory (MG) to build coarse-scale permeability coefficients. Comparing the results with coefficients upscaled using other methods, we find that MG is consistently more accurate, particularly due to its ability to address the tensorial nature of the coefficients. MG places a low computational demand, in the manner in which we have implemented it, and accurate flow-rate estimates are obtained when using MG-upscaled permeabilities that approach or are beyond the percolation threshold. PMID- 29347056 TI - Force-linearization closure for non-Markovian Langevin systems with time delay. AB - This paper is concerned with the Fokker-Planck (FP) description of classical stochastic systems with discrete time delay. The non-Markovian character of the corresponding Langevin dynamics naturally leads to a coupled infinite hierarchy of FP equations for the various n-time joint distribution functions. Here, we present an approach to close the hierarchy at the one-time level based on a linearization of the deterministic forces in all members of the hierarchy starting from the second one. This leads to a closed equation for the one-time probability density in the steady state. Considering two generic nonlinear systems, a colloidal particle in a sinusoidal or bistable potential supplemented by a linear delay force, we demonstrate that our approach yields a very accurate representation of the density as compared to quasiexact numerical results from direct solution of the Langevin equation. Moreover, the results are significantly improved against those from a small-delay approximation and a perturbation theoretical approach. We also discuss the possibility of accessing transport related quantities, such as escape times, based on an additional Kramers approximation. Our approach applies to a wide class of models with nonlinear deterministic forces. PMID- 29347057 TI - Revisiting the use of the immersed-boundary lattice-Boltzmann method for simulations of suspended particles. AB - The immersed-boundary lattice-Boltzmann method (IB-LBM) is increasingly being used in simulations of dense suspensions. These systems are computationally very expensive and can strongly benefit from lower resolutions that still maintain the desired accuracy for the quantities of interest. IB-LBM has a number of free parameters that have to be defined, often without exact knowledge of the tradeoffs, since their behavior in low resolutions is not well understood. Such parameters are the lattice constant Deltax, the number of vertices N_{v}, the interpolation kernel phi, and the LBM relaxation time tau. We investigate the effect of these IB-LBM parameters on a number of straightforward but challenging benchmarks. The systems considered are (a) the flow of a single sphere in shear flow, (b) the collision of two spheres in shear flow, and (c) the lubrication interaction of two spheres. All benchmarks are performed in three dimensions. The first two systems are used for determining two effective radii: the hydrodynamic radius r_{hyd} and the particle interaction radius r_{inter}. The last system is used to establish the numerical robustness of the lubrication forces, used to probe the hydrodynamic interactions in the limit of small gaps. Our results show that lower spatial resolutions result in larger hydrodynamic and interaction radii, while surface densities should be chosen above two vertices per LU^{2} result to prevent fluid penetration in underresolved meshes. Underresolved meshes also failed to produce the migration of particles toward the center of the domain due to lift forces in Couette flow, mostly noticeable for IBM-kernel phi_{2}. Kernel phi_{4}, despite being more robust toward mesh resolution, produces a notable membrane thickness, leading to the breakdown of the lubrication forces in larger gaps, and its use in dense suspensions where the mean particle distances are small can result in undesired behavior. r_{hyd} is measured to be different from r_{inter}, suggesting that there is no consistent measure to recalibrate the radius of the suspended particle. PMID- 29347058 TI - Fluctuations in percolation of sparse complex networks. AB - We study the role of fluctuations in percolation of sparse complex networks. To this end we consider two random correlated realizations of the initial damage of the nodes and we evaluate the fraction of nodes that are expected to remain in the giant component of the network in both cases or just in one case. Our framework includes a message-passing algorithm able to predict the fluctuations in a single network, and an analytic prediction of the expected fluctuations in ensembles of sparse networks. This approach is applied to real ecological and infrastructure networks and it is shown to characterize the expected fluctuations in their response to external damage. PMID- 29347059 TI - Acoustic streaming in a microfluidic channel with a reflector: Case of a standing wave generated by two counterpropagating leaky surface waves. AB - A theory is developed for the modeling of acoustic streaming in a microfluidic channel confined between an elastic solid wall and a rigid reflector. A situation is studied where the acoustic streaming is produced by two leaky surface waves that propagate towards each other in the solid wall and thus form a combined standing wave in the fluid. Full analytical solutions are found for both the linear acoustic field and the field of the acoustic streaming. A dispersion equation is derived that allows one to calculate the wave speed in the system under study. The obtained solutions are used to consider particular numerical examples and to reveal the structure of the acoustic streaming. It is shown that two systems of vortices are established along the boundaries of the microfluidic channel. PMID- 29347060 TI - Contact angle entropy and macroscopic friction in noncohesive two-dimensional granular packings. AB - We study the relationship between the granular contact angle distribution and local particle friction on the macroscopic friction and bulk modulus in noncohesive disk packings. Molecular dynamics in two dimensions are used to simulate uniaxial loading-unloading cycles imposed on the granular packings. While macroscopic Mohr friction depends on the granular pack geometric details, it reaches a stationary limit after a finite number of loading-unloading cycles that render well-defined values for bulk modulus, grain coordination, porosity, and friction. For random packings and for all polydispersities analyzed, we found that as interparticle friction increases, the bulk modulus for the limit cycle decreases linearly, while the mean coordination number is reduced and the porosity increased, also as approximately linear functions. On the other hand, the macroscopic Mohr friction increases in a monotonous trend with interparticle friction. The latter result is compared to a theoretical model that assumes the existence of sliding planes corresponding to definite Mohr-friction values. The simulation results for macroscopic friction are well described by the theoretical model that incorporates the local neighbor angle distribution that can be quantified through the contact angle entropy. As local friction is increased, the limit entropy of the neighbor angle distribution is reduced, thus introducing the geometric component to granular friction. Surprisingly, once the limit cycle is reached, the Mohr friction seems to be insensitive to polydispersity as has been recently reported. PMID- 29347061 TI - Predictions of first passage times in sparse discrete fracture networks using graph-based reductions. AB - We present a graph-based methodology to reduce the computational cost of obtaining first passage times through sparse fracture networks. We derive graph representations of generic three-dimensional discrete fracture networks (DFNs) using the DFN topology and flow boundary conditions. Subgraphs corresponding to the union of the k shortest paths between the inflow and outflow boundaries are identified and transport on their equivalent subnetworks is compared to transport through the full network. The number of paths included in the subgraphs is based on the scaling behavior of the number of edges in the graph with the number of shortest paths. First passage times through the subnetworks are in good agreement with those obtained in the full network, both for individual realizations and in distribution. Accurate estimates of first passage times are obtained with an order of magnitude reduction of CPU time and mesh size using the proposed method. PMID- 29347062 TI - From thermal to excited-state quantum phase transition: The Dicke model. AB - We study the thermodynamics of the full version of the Dicke model, including all the possible values of the total angular momentum j, with both microcanonical and canonical ensembles. We focus on both the excited-state quantum phase transition, appearing in the microcanonical description of the maximum angular momentum sector, j=N/2, and the thermal phase transition, which occurs when all the sectors are taken into account. We show that two different features characterize the full version of the Dicke model. If the system is in contact with a thermal bath and is described by means of the canonical ensemble, the parity symmetry becomes spontaneously broken at the critical temperature. In the microcanonical ensemble, and despite that all the logarithmic singularities which characterize the excited-state quantum phase transition are ruled out when all the j sectors are considered, there still exists a critical energy (or temperature) dividing the spectrum into two regions: one in which the parity symmetry can be broken, and another in which this symmetry is always well defined. PMID- 29347063 TI - Smallest quantum thermal machine: The effect of strong coupling and distributed thermal tasks. AB - The functions of the smallest self-contained thermal machine consisting of a single qutrit are studied when the weak internal coupling assumption is relaxed. It is shown that in the presence of one target to be cooled the strong coupling is not beneficial to the refrigeration. The reason is explained by examining the effect of the strong coupling on the contributions of all eigenstates transitions to the heat current of the related thermal reservoir. When acting simultaneously on two targets, the machine can be manipulated to implement distributed tasks on them, such as cooling one target and meanwhile heating another one, by adjusting the coupling strengths between the machine with the two targets. In particular, we show that the machine can realize temperature reversal for the two qubits, namely, the qubit that is coupled to the high temperature reservoir is refrigerated to a temperature below that of the qubit contacting with the low temperature reservoir. PMID- 29347064 TI - Anisotropic decay of the energy spectrum in two-dimensional dense granular flows. AB - We study anisotropic collective motions of two-dimensional granular particles under simple shear deformations. Employing molecular-dynamics simulations of large system sizes, we find that anisotropic fluidized bands develop in the system yielding under quasistatic deformations, where the spectrum of nonaffine velocities, which is associated with the energy spectrum for turbulent flows, exhibits a quadrupole structure. To explain theoretically the anisotropic spectrum, we derive hydrodynamic modes from a continuum model of dense granular materials, where we find that fluidized bands are caused by long-lived hydrodynamic fluctuations characterized by compressibility. PMID- 29347065 TI - Theory of wavelet-based coarse-graining hierarchies for molecular dynamics. AB - We present a multiresolution approach to compressing the degrees of freedom and potentials associated with molecular dynamics, such as the bond potentials. The approach suggests a systematic way to accelerate large-scale molecular simulations with more than two levels of coarse graining, particularly applications of polymeric materials. In particular, we derive explicit models for (arbitrarily large) linear (homo)polymers and iterative methods to compute large scale wavelet decompositions from fragment solutions. This approach does not require explicit preparation of atomistic-to-coarse-grained mappings, but instead uses the theory of diffusion wavelets for graph Laplacians to develop system specific mappings. Our methodology leads to a hierarchy of system-specific coarse grained degrees of freedom that provides a conceptually clear and mathematically rigorous framework for modeling chemical systems at relevant model scales. The approach is capable of automatically generating as many coarse-grained model scales as necessary, that is, to go beyond the two scales in conventional coarse grained strategies; furthermore, the wavelet-based coarse-grained models explicitly link time and length scales. Furthermore, a straightforward method for the reintroduction of omitted degrees of freedom is presented, which plays a major role in maintaining model fidelity in long-time simulations and in capturing emergent behaviors. PMID- 29347066 TI - Mean-field approach to evolving spatial networks, with an application to osteocyte network formation. AB - We consider evolving networks in which each node can have various associated properties (a state) in addition to those that arise from network structure. For example, each node can have a spatial location and a velocity, or it can have some more abstract internal property that describes something like a social trait. Edges between nodes are created and destroyed, and new nodes enter the system. We introduce a "local state degree distribution" (LSDD) as the degree distribution at a particular point in state space. We then make a mean-field assumption and thereby derive an integro-partial differential equation that is satisfied by the LSDD. We perform numerical experiments and find good agreement between solutions of the integro-differential equation and the LSDD from stochastic simulations of the full model. To illustrate our theory, we apply it to a simple model for osteocyte network formation within bones, with a view to understanding changes that may take place during cancer. Our results suggest that increased rates of differentiation lead to higher densities of osteocytes, but with a smaller number of dendrites. To help provide biological context, we also include an introduction to osteocytes, the formation of osteocyte networks, and the role of osteocytes in bone metastasis. PMID- 29347067 TI - Isotropic-nematic transition for hard rods on a three-dimensional cubic lattice. AB - Using grand-canonical Monte Carlo (GCMC) simulations, we investigate the isotropic-nematic phase transition for hard rods of size L*1*1 on a three dimensional cubic lattice. We observe such a transition for L>=6. For L=6, the nematic state has a negative order parameter, reflecting the co-occurrence of two dominating orientations. For L>=7, the nematic state has a positive order parameter, corresponding to the dominance of one orientation. We investigate rod lengths up to L=25 and find evidence for a very weakly first-order isotropic nematic transition, while we cannot completely rule out a second-order transition. It was not possible to detect a density jump at the transition, despite using large systems containing several 10^{5} particles. The probability density distributions P(Q) from the GCMC simulations near the transition are very broad, pointing to strong fluctuations. Our results complement earlier results on the demixing (pseudonematic) transition for an equivalent system in two dimensions, which is presumably of Ising type and occurs for L>=7. We compare our results to lattice fundamental measure theory (FMT) and find that FMT strongly overestimates nematic order and consequently predicts a strong first-order transition. The rod packing fraction of the nematic coexisting states, however, agree reasonably well between FMT and GCMC. PMID- 29347068 TI - How to determine a boundary condition for diffusion at a thin membrane from experimental data. AB - We present a method of deriving a boundary condition for diffusion at a thin membrane from experimental data. Based on experimental results obtained for normal diffusion of ethanol in water, we show that the derived boundary condition at a membrane contains a term with a Riemann-Liouville fractional time derivative of order 1/2. Such a form of the boundary condition shows that a transfer of particles through a thin membrane is a "long-memory process." The presented method is an example that an important part of the mathematical model of physical processes may be derived directly from experimental data. PMID- 29347069 TI - Adaptive numerical algorithms to simulate the dynamical Casimir effect in a closed cavity with different boundary conditions. AB - We present an alternative numerical approach to compute the number of particles created inside a cavity due to time-dependent boundary conditions. The physical model consists of a rectangular cavity, where a wall always remains still while the other wall of the cavity presents a smooth movement in one direction. The method relies on the setting of the boundary conditions (Dirichlet and Neumann) and the following resolution of the corresponding equations of modes. By a further comparison between the ground state before and after the movement of the cavity wall, we finally compute the number of particles created. To demonstrate the method, we investigate the creation of particle production in vibrating cavities, confirming previously known results in the appropriate limits. Within this approach, the dynamical Casimir effect can be investigated, making it possible to study a variety of scenarios where no analytical results are known. Of special interest is, of course, the realistic case of the electromagnetic field in a three-dimensional cavity, with transverse electric (TE)-mode and transverse magnetic (TM)-mode photon production. Furthermore, with our approach we are able to calculate numerically the particle creation in a tuneable resonant superconducting cavity by the use of the generalized Robin boundary condition. We compare the numerical results with analytical predictions as well as a different numerical approach. Its extension to three dimensions is also straightforward. PMID- 29347070 TI - Instabilities of conducting fluid layers in weak time-dependent magnetic fields. AB - We present the experimental analysis of the instabilities generated on a large drop of liquid metal by a time-dependent magnetic field. The study is done exploring the range of tiny values of the control parameter (the ratio between the Lorentz forces and inertia) avoiding nonlinear effects. Two different instabilities break the symmetries generating spatial patterns that appear without a threshold for some specific frequencies (up to the experimental precision) and have been observed for parameter values two orders of magnitude lower than in previously published experiments [J. Fluid Mech. 239, 383 (1992)JFLSA70022-112010.1017/S0022112092004452]. One of the instabilities corresponds to a boundary condition oscillation that generates surface waves and breaks the azimuthal symmetry. The other corresponds to a parametric forcing through a modulation of the Lorentz force. The competition between these two mechanisms produces time-dependent patterns near codimension-2 points. PMID- 29347071 TI - Consistency of detrended fluctuation analysis. AB - The scaling function F(s) in detrended fluctuation analysis (DFA) scales as F(s)~s^{H} for stochastic processes with Hurst exponent H. This scaling law is proven for stationary stochastic processes with 010^{17}cm^{-3} is measured for >100 ns. This is the first temporal measurement of the generation and adiabatic expansion of a large volume (3*10^{-4}cm^{3}) of warm dense plasma isochorically heated by intense monochromatic electrons. The suite of diagnostics is presented, which includes time-resolved plasma plume expansion measurements on a single shot, visible spectroscopy measurements of the emission and absorption spectrum, measurements of the beam distribution, and plans for the future. PMID- 29347079 TI - Optimal information transfer in enzymatic networks: A field theoretic formulation. AB - Signaling in enzymatic networks is typically triggered by environmental fluctuations, resulting in a series of stochastic chemical reactions, leading to corruption of the signal by noise. For example, information flow is initiated by binding of extracellular ligands to receptors, which is transmitted through a cascade involving kinase-phosphatase stochastic chemical reactions. For a class of such networks, we develop a general field-theoretic approach to calculate the error in signal transmission as a function of an appropriate control variable. Application of the theory to a simple push-pull network, a module in the kinase phosphatase cascade, recovers the exact results for error in signal transmission previously obtained using umbral calculus [Hinczewski and Thirumalai, Phys. Rev. X 4, 041017 (2014)2160-330810.1103/PhysRevX.4.041017]. We illustrate the generality of the theory by studying the minimal errors in noise reduction in a reaction cascade with two connected push-pull modules. Such a cascade behaves as an effective three-species network with a pseudointermediate. In this case, optimal information transfer, resulting in the smallest square of the error between the input and output, occurs with a time delay, which is given by the inverse of the decay rate of the pseudointermediate. Surprisingly, in these examples the minimum error computed using simulations that take nonlinearities and discrete nature of molecules into account coincides with the predictions of a linear theory. In contrast, there are substantial deviations between simulations and predictions of the linear theory in error in signal propagation in an enzymatic push-pull network for a certain range of parameters. Inclusion of second-order perturbative corrections shows that differences between simulations and theoretical predictions are minimized. Our study establishes that a field theoretic formulation of stochastic biological signaling offers a systematic way to understand error propagation in networks of arbitrary complexity. PMID- 29347080 TI - Derivation of stable Burnett equations for rarefied gas flows. AB - A set of constitutive relations for the stress tensor and heat flux vector for the hydrodynamic description of rarefied gas flows is derived in this work. A phase density function consistent with Onsager's reciprocity principle and H theorem is utilized to capture nonequilibrium thermodynamics effects. The phase density function satisfies the linearized Boltzmann equation and the collision invariance property. Our formulation provides the correct value of the Prandtl number as it involves two different relaxation times for momentum and energy transport by diffusion. Generalized three-dimensional constitutive equations for different kinds of molecules are derived using the phase density function. The derived constitutive equations involve cross single derivatives of field variables such as temperature and velocity, with no higher-order derivative in higher-order terms. This is remarkable feature of the equations as the number of boundary conditions required is the same as needed for conventional Navier-Stokes equations. Linear stability analysis of the equations is performed, which shows that the derived equations are unconditionally stable. A comparison of the derived equations with existing Burnett-type equations is presented and salient features of our equations are outlined. The classic internal flow problem, force driven compressible plane Poiseuille flow, is chosen to verify the stable Burnett equations and the results for equilibrium variables are presented. PMID- 29347081 TI - Phenomenological modeling of durotaxis. AB - Cells exhibit qualitatively different behaviors on substrates with different rigidities. The fact that cells are more polarized on the stiffer substrate motivates us to construct a two-dimensional cell with the distribution of focal adhesions dependent on substrate rigidities. This distribution affects the forces exerted by the cell and thereby determines its motion. Our model reproduces the experimental observation that the persistence time is higher on the stiffer substrate. This stiffness-dependent persistence will lead to durotaxis, the preference in moving towards stiffer substrates. This propensity is characterized by the durotaxis index first defined in experiments. We derive and validate a two dimensional corresponding Fokker-Planck equation associated with our model. Our approach highlights the possible role of the focal adhesion arrangement in durotaxis. PMID- 29347082 TI - Definite existence of subphases with eight- and ten-layer unit cells as studied by complementary methods, electric-field-induced birefringence and microbeam resonant x-ray scattering. AB - A mixture of two selenium-containing compounds, 80 wt. % AS657 and 20 wt. % AS620, are studied with two complementary methods, electric-field-induced birefringence (EFIB) and microbeam resonant x-ray scattering (MURXS). The mixture shows the typical phase sequence of Sm-C_{A}^{*}-1/3-1/2-Sm-C^{*}-Sm C_{alpha}^{*}-Sm-A, where 1/3 and 1/2 are two prototypal ferrielectric and antiferroelectric subphases with three- and four-layer unit cells, respectively. Here we designate the subphase as its q_{T} number defined by the ratio of [F]/([F]+[A]), where [F] and [A] are the numbers of synclinic ferroelectric and anticlinic antiferroelectric orderings in the unit cell, respectively. The electric field vs temperature phase diagram with EFIB contours indicates the emergence of three additional subphases, an antiferroelectric one between Sm C_{A}^{*} and 1/3 and antiferroelectric and apparently ferrielectric ones between 1/3 and 1/2. The simplest probable q_{T}'s for these additional subphases are 1/4, 2/5, and 3/7, respectively, in the order of increasing temperature. The MURXS profiles indicate that antiferroelectric 1/4 and 2/5 approximately have the eight-layer (FAAAFAAA) and ten-layer (FAFAAFAFAA) Ising unit cells, respectively. The remaining subphase may be ferrielectric 3/7 with a seven-layer unit cell, although the evidence is partial. These experimental results are compared with the phenomenological Landau model [P. V. Dolganov and E. I. Kats, Liq. Cryst. Rev. 1, 127 (2014)2168-039610.1080/21680396.2013.869667] and the quasimolecular model [A. V. Emelyanenko and M. A. Osipov, Phys. Rev. E 68, 051703 (2003)1063 651X10.1103/PhysRevE.68.051703]. PMID- 29347083 TI - Contact of a spherical probe with a stretched rubber substrate. AB - We report on a theoretical and experimental investigation of the normal contact of stretched neo-Hookean substrates with rigid spherical probes. Starting from a published formulation of surface Green's function for incremental displacements on a prestretched, neo-Hookean, substrate [J. Mech. Phys. Solids 56, 2957 (2008)JMPSA80022-509610.1016/j.jmps.2008.07.002], a model is derived for both adhesive and nonadhesive contacts. The shape of the elliptical contact area together with the contact load and the contact stiffness are predicted as a function of the in-plane stretch ratios lambda_{x} and lambda_{y} of the substrate. The validity of this model is assessed by contact experiments carried out using an uniaxally stretched silicone rubber. For stretch ratio below about 1.25, a good agreement is observed between theory and experiments. Above this threshold, some deviations from the theoretical predictions are induced as a result of the departure of the mechanical response of the silicone rubber from the neo-Hokeean description embedded in the model. PMID- 29347084 TI - Identifying the linear phase of the relativistic Kelvin-Helmholtz instability and measuring its growth rate via radiation. AB - For the relativistic Kelvin-Helmholtz instability (KHI), which occurs at shear interfaces between two plasma streams, we report results on the polarized radiation over all observation directions and frequencies emitted by the plasma electrons from ab initio kinetic simulations. We find the polarization of the radiation to provide a clear signature for distinguishing the linear phase of the KHI from its other phases. During the linear phase, we predict the growth rate of the KHI radiation power to match the growth rate of the KHI to a high degree. Our predictions are based on a model of the vortex dynamics, which describes the electron motion in the vicinity of the shear interface between the two streams. Albeit the complex and turbulent dynamics happening in the shear region, we find excellent agreement between our model and large-scale particle-in-cell simulations. Our findings pave the way for identifying the KHI linear regime and for measuring its growth rate in astrophysical jets observable on earth as well as in laboratory plasmas. PMID- 29347085 TI - Optimizing mutual synchronization of rhythmic spatiotemporal patterns in reaction diffusion systems. AB - Optimization of the stability of synchronized states between a pair of symmetrically coupled reaction-diffusion systems exhibiting rhythmic spatiotemporal patterns is studied in the framework of the phase reduction theory. The optimal linear filter that maximizes the linear stability of the in phase synchronized state is derived for the case in which the two systems are nonlocally coupled. The optimal nonlinear interaction function that theoretically gives the largest linear stability of the in-phase synchronized state is also derived. The theory is illustrated by using typical rhythmic patterns in FitzHugh Nagumo systems as examples. PMID- 29347086 TI - Aggregation-fragmentation-diffusion model for trail dynamics. AB - We investigate statistical properties of trails formed by a random process incorporating aggregation, fragmentation, and diffusion. In this stochastic process, which takes place in one spatial dimension, two neighboring trails may combine to form a larger one, and also one trail may split into two. In addition, trails move diffusively. The model is defined by two parameters which quantify the fragmentation rate and the fragment size. In the long-time limit, the system reaches a steady state, and our focus is the limiting distribution of trail weights. We find that the density of trail weight has power-law tail P(w)~w^{ gamma} for small weight w. We obtain the exponent gamma analytically and find that it varies continuously with the two model parameters. The exponent gamma can be positive or negative, so that in one range of parameters small-weight trails are abundant and in the complementary range they are rare. PMID- 29347087 TI - Parallel random target searches in a confined space. AB - We study a random target searching performed by N independent searchers in a d dimensional domain of a large but finite volume. Considering the two initial distributions of searchers where searchers are either uniformly or point distributed, we estimate the mean time for the first of the searchers to reach the target and refer to it as searching time. The searching time for the uniformly distributed searchers exhibits a universal power-law dependence on N, irrespective of dimensionality and the target-to-domain size ratio. For point distributed searching, the searching time has a logarithmic dependence on N in the large N limit, while in the small N limit, it shows qualitatively different behaviors depending upon r_{0}, the initial distance of the searchers from a target. We obtain a diagram by comparing the searching times of the two initial distributions in the parameter space (r_{0},N) and therein present the asymptotic lines separating three characteristic regions to explain numerical simulation results. PMID- 29347088 TI - Effect of polymer additives on heat transport and large-scale circulation in turbulent Rayleigh-Benard convection. AB - The present paper presents direct numerical simulations of Rayleigh-Benard convection (RBC) in an enclosed cell filled with the polymer solution in order to investigate the viscoelastic effect on the characteristics of heat transport and large-scale circulation (LSC) of RBC. To overcome the difficulties in numerically solving a high Weissenberg number (Wi) problem of viscoelastic fluid flow with strong elastic effect, the log-conformation reformulation method was implemented. Numerical results showed that the addition of polymers reduced the heat flux and the amount of heat transfer reduction (HTR) behaves nonmonotonically, which firstly increases but then decreases with Wi. The maximum HTR reaches around 8.7% at the critical Wi. The nonmonotonic behavior of HTR as a function of Wi was then corroborated with the modifications of the period of LSC and turbulent energy as well as viscous boundary layer thickness. Finally, a standard turbulent kinetic energy (TKE) budget analysis was done for the whole domain, the boundary layer region, and the bulk region. It showed that the role change of elastic stress contributions to TKE is mainly responsible for this nonmonotonic behavior of HTR. PMID- 29347089 TI - Alternative steady states in ecological networks. AB - In many natural situations, one observes a local system with many competing species that is coupled by weak immigration to a regional species pool. The dynamics of such a system is dominated by its stable and uninvadable (SU) states. When the competition matrix is random, the number of SUs depends on the average value and variance of its entries. Here we consider the problem in the limit of weak competition and large variance. Using a yes-no interaction model, we show that the number of SUs corresponds to the number of maximum cliques in an Erdos Renyi network. The number of SUs grows exponentially with the number of species in this limit, unless the network is completely asymmetric. In the asymmetric limit, the number of SUs is O(1). Numerical simulations suggest that these results are valid for models with a continuous distribution of competition terms. PMID- 29347090 TI - Phase-field lattice Boltzmann modeling of boiling using a sharp-interface energy solver. AB - The main objective of this paper is to extend an isothermal incompressible two phase lattice Boltzmann equation method to model liquid-vapor phase change problems using a sharp-interface energy solver. Two discrete particle distribution functions, one for the continuity equation and the other for the pressure evolution and momentum equations, are considered in the current model. The sharp-interface macroscopic internal energy equation is discretized with an isotropic finite difference method to find temperature distribution in the system. The mass flow generated at liquid-vapor phase interface is embedded in the pressure evolution equation. The sharp-interface treatment of internal energy equation helps to find the interfacial mass flow rate accurately where no free parameter is needed in the calculations. The proposed model is verified against available theoretical solutions of the two-phase Stefan problem and the two-phase sucking interface problem, with which our simulation results are in good agreement. The liquid droplet evaporation in a superheated vapor, the vapor bubble growth in a superheated liquid, and the vapor bubble rising in a superheated liquid are analyzed and underlying physical characteristics are discussed in detail. The model is successfully tested for the liquid-vapor phase change with large density ratio up to 1000. PMID- 29347091 TI - Graph spectral characterization of the XY model on complex networks. AB - There is recent evidence that the XY spin model on complex networks can display three different macroscopic states in response to the topology of the network underpinning the interactions of the spins. In this work we present a way to characterize the macroscopic states of the XY spin model based on the spectral decomposition of time series using topological information about the underlying networks. We use three different classes of networks to generate time series of the spins for the three possible macroscopic states. We then use the temporal Graph Signal Transform technique to decompose the time series of the spins on the eigenbasis of the Laplacian. From this decomposition, we produce spatial power spectra, which summarize the activation of structural modes by the nonlinear dynamics, and thus coherent patterns of activity of the spins. These signatures of the macroscopic states are independent of the underlying network class and can thus be used as robust signatures for the macroscopic states. This work opens avenues to analyze and characterize dynamics on complex networks using temporal Graph Signal Analysis. PMID- 29347092 TI - Front roughening of flames in discrete media. AB - The morphology of flame fronts propagating in reactive systems composed of randomly positioned, pointlike sources is studied. The solution of the temperature field and the initiation of new sources is implemented using the superposition of the Green's function for the diffusion equation, eliminating the need to use finite-difference approximations. The heat released from triggered sources diffuses outward from each source, activating new sources and enabling a mechanism of flame propagation. Systems of 40000 sources in a 200*200 two dimensional domain were tracked using computer simulations, and statistical ensembles of 120 realizations of each system were averaged to determine the statistical properties of the flame fronts. The reactive system of sources is parameterized by two nondimensional values: the heat release time (normalized by interparticle diffusion time) and the ignition temperature (normalized by adiabatic flame temperature). These two parameters were systematically varied for different simulations to investigate their influence on front propagation. For sufficiently fast heat release and low ignition temperature, the front roughness [defined as the root mean square deviation of the ignition temperature contour from the average flame position] grew following a power-law dependence that was in excellent agreement with the Kardar-Parisi-Zhang (KPZ) universality class (beta=1/3). As the reaction time was increased, lower values of the roughening exponent were observed, and at a sufficiently great value of reaction time, reversion to a steady, constant-width thermal flame was observed that matched the solution from classical combustion theory. Deviation away from KPZ scaling was also observed as the ignition temperature was increased. The features of this system that permit it to exhibit both KPZ and non-KPZ scaling are discussed. PMID- 29347093 TI - Self-assembly of rigid magnetic rods consisting of single dipolar beads in two dimensions. AB - Molecular dynamics simulations are used to investigate the structural properties of a two-dimensional ensemble of magnetic rods, which are modeled as aligned single dipolar beads. The obtained self-assembled configurations can be characterized as (1) clusters, (2) percolated, and (3) ordered structures, and their structural properties are investigated in detail. By increasing the aspect ratio of the magnetic rods, we show that the percolation transition is suppressed due to the reduced mobility of the rods in two dimensions. Such a behavior is opposite to the one observed in three dimensions. A magnetic bulk phase is found with local ferromagnetic order and an unusual nonmonotonic behavior of the nematic order is observed. PMID- 29347094 TI - Perturbation scheme for a fluxon in a curved Josephson junction. AB - The kink solution in the long Josephson junction is studied. The perturbation scheme of constructing the fluxon solution in curved junction is formulated. The prediction from the perturbation scheme is compared with the prediction that follows from the numerical studies of the complete field model. PMID- 29347095 TI - Viscorotational shear instability of Keplerian granular flows. AB - The linear stability of viscous Keplerian flow around a gravitating center is studied using the rheological granular fluid model. The linear rheological instability triggered by the interplay of the shear rheology and Keplerian differential rotation of incompressible dense granular fluids is found. Instability sets in in granular fluids, where the viscosity parameter grows faster than the square of the local shear rate (strain rate) at constant pressure. Found instability can play a crucial role in the dynamics of dense planetary rings and granular flows in protoplanetary disks. PMID- 29347096 TI - Random blebbing motion: A simple model linking cell structural properties to migration characteristics. AB - If the plasma membrane of a cell is able to delaminate locally from its actin cortex, a cellular bleb can be produced. Blebs are pressure-driven protrusions, which are noteworthy for their ability to produce cellular motion. Starting from a general continuum mechanics description, we restrict ourselves to considering cell and bleb shapes that maintain approximately spherical forms. From this assumption, we obtain a tractable algebraic system for bleb formation. By including cell-substrate adhesions, we can model blebbing cell motility. Further, by considering mechanically isolated blebbing events, which are randomly distributed over the cell, we can derive equations linking the macroscopic migration characteristics to the microscopic structural parameters of the cell. This multiscale modeling framework is then used to provide parameter estimates, which are in agreement with current experimental data. In summary, the construction of the mathematical model provides testable relationships between the bleb size and cell motility. PMID- 29347097 TI - Extreme and superextreme events in a loss-modulated CO_{2} laser: Nonlinear resonance route and precursors. AB - We investigate the occurrence of extreme and rare events, i.e., giant and rare light pulses, in a periodically modulated CO_{2} laser model. Due to nonlinear resonant processes, we show a scenario of interaction between chaotic bands of different orders, which may lead to the formation of extreme and rare events. We identify a crisis line in the modulation parameter space, and we show that, when the modulation amplitude increases, remaining in the vicinity of the crisis, some statistical properties of the laser pulses, such as the average and dispersion of amplitudes, do not change much, whereas the amplitude of extreme events grows enormously, giving rise to extreme events with much larger deviations than usually reported, with a significant probability of occurrence, i.e., with a long tailed non-Gaussian distribution. We identify recurrent regular patterns, i.e., precursors, that anticipate the emergence of extreme and rare events, and we associate these regular patterns with unstable periodic orbits embedded in a chaotic attractor. We show that the precursors may or may not lead to the emergence of extreme events. Thus, we compute the probability of success or failure (false alarm) in the prediction of the extreme events, once a precursor is identified in the deterministic time series. We show that this probability depends on the accuracy with which the precursor is identified in the laser intensity time series. PMID- 29347098 TI - Statistics of randomly cross-linked polymer models to interpret chromatin conformation capture data. AB - Polymer models are used to describe chromatin, which can be folded at different spatial scales by binding molecules. By folding, chromatin generates loops of various sizes. We present here a statistical analysis of the randomly cross linked (RCL) polymer model, where monomer pairs are connected randomly, generating a heterogeneous ensemble of chromatin conformations. We obtain asymptotic formulas for the steady-state variance, encounter probability, the radius of gyration, instantaneous displacement, and the mean first encounter time between any two monomers. The analytical results are confirmed by Brownian simulations. Finally, the present results are used to extract the mean number of cross links in a chromatin region from conformation capture data. PMID- 29347099 TI - Heat engines at optimal power: Low-dissipation versus endoreversible model. AB - The low-dissipation model and the endoreversible model of heat engines are two of the most commonly studied models of machines in finite-time thermodynamics. In this paper we compare the performance characteristics of these two models under optimal power output. We point out a basic equivalence between them, in the linear response regime. PMID- 29347100 TI - Correcting binding parameters for interacting ligand-lattice systems. AB - Binding of ligands to macromolecules is central to many functional and regulatory biological processes. Key parameters characterizing ligand-macromolecule interactions are the stoichiometry, inducing the number of ligands per macromolecule binding site, and the dissociation constant, quantifying the ligand binding site affinity. Both these parameters can be obtained from analyses of classical saturation experiments using the standard binding equation that offers the great advantage of mathematical simplicity but becomes an approximation for situations of interest when a ligand binds and covers more than one single binding site on the macromolecule. Using the framework of car-parking problem with latticelike macromolecules where each ligand can cover simultaneously several consecutive binding sites, we showed that employing the standard analysis leads to underestimation of binding parameters, i.e., ligands appear larger than they actually are and their affinity is also greater than it is. Therefore, we have derived expressions allowing to determine the ligand size and true binding parameters (stoichiometry and dissociation constant) as a function of apparent binding parameters retrieved from standard saturation experiments. PMID- 29347101 TI - Formation of liquid drops at an orifice and dynamics of pinch-off in liquid jets. AB - This paper presents a numerical investigation of the dynamics of pinch-off in liquid drops and jets during injection of a liquid through an orifice into another fluid. The current study is carried out by solving axisymmetric Navier Stokes equations and the interface is captured using a coupled level-set and volume-of-fluid approach. The delicate interplay of inertia and viscous effects plays a crucial role in deciding the dynamics of the formation as well as breakup of liquid drops and jets. In the dripping regime, the growth and breakup rate of a drop are studied and quantified by corroborating with theoretical predictions. During the growth stage of the drops, a self-similar behavior of the drop profile is identified over a relatively short duration of time. The viscosity of the drop liquid shows substantial influence on the thinning behavior of a liquid neck and a transition is observed from an inertia dominated regime to an inertia-viscous regime beyond a critical minimum value of the neck radius. The phenomenon of interface overturning is fundamentally related to the magnitude of drop viscosity. The variation of overturning angle as a function of drop viscosity is computed and a critical value of Ohnesorge number is obtained beyond which overturning ceases. Increasing the inertia of drop liquid transforms the system from a periodically dripping regime to a quasiperiodic regime and finally it culminates into an elongated liquid jet. Another interesting transition from dripping to jetting regime is demonstrated by varying the viscosity of the ambient medium. The breakup of jets in Rayleigh mode is explored and the breakup length obtained from our computations shows excellent agreement with the theoretical predictions owing to Rayleigh's analysis. The ambient medium is entrained as the jet moves downstream with the creation of a vortical structure just outside the jet signifying increased participation of the ambient medium in the dynamics of jet breakup at higher inflow rates. PMID- 29347102 TI - Crack-tip process zone as a bifurcation problem. AB - Stress concentration at a crack tip generates a solid structural transformation in its vicinity, the process zone. We argue that its formation represents a local phase transition described by a multicomponent order parameter. We derive a system of equations describing the dynamics of the order parameter driven by an inhomogeneous, time-dependent stress field in the solid and show that it exhibits a bifurcation. The latter corresponds to the emergence of a process zone characterized by the distribution of the order parameter localized in the vicinity of the crack tip. The emergence temperature T_{*} considerably differs from the temperature of the bulk phase transformation T_{c}. We demonstrate that T_{*} exhibits a universal behavior T_{*}-T_{c}~K_{I}^{4/3}, in terms of the stress intensity factor K_{I}, and that the zone universally vanishes upon achieving a critical velocity. These facts together give rise to a universal dynamic phase diagram. PMID- 29347103 TI - Shortcuts to isothermality and nonequilibrium work relations. AB - In conventional thermodynamics, it is widely acknowledged that the realization of an isothermal process for a system requires a quasistatic controlling protocol. Here we propose and design a strategy to realize a finite-rate isothermal transition from an equilibrium state to another one at the same temperature, which is named the "shortcut to isothermality." By using shortcuts to isothermality, we derive three nonequilibrium work relations, including an identity between the free-energy difference and the mean work due to the potential of the original system, a Jarzynski-like equality, and the inverse relationship between the dissipated work and the total driving time. We numerically test these three relations by considering the motion of a Brownian particle trapped in a harmonic potential and dragged by a time-dependent force. PMID- 29347104 TI - Visibility graphs of random scalar fields and spatial data. AB - We extend the family of visibility algorithms to map scalar fields of arbitrary dimension into graphs, enabling the analysis of spatially extended data structures as networks. We introduce several possible extensions and provide analytical results on the topological properties of the graphs associated to different types of real-valued matrices, which can be understood as the high and low disorder limits of real-valued scalar fields. In particular, we find a closed expression for the degree distribution of these graphs associated to uncorrelated random fields of generic dimension. This result holds independently of the field's marginal distribution and it directly yields a statistical randomness test, applicable in any dimension. We showcase its usefulness by discriminating spatial snapshots of two-dimensional white noise from snapshots of a two dimensional lattice of diffusively coupled chaotic maps, a system that generates high dimensional spatiotemporal chaos. The range of potential applications of this combinatorial framework includes image processing in engineering, the description of surface growth in material science, soft matter or medicine, and the characterization of potential energy surfaces in chemistry, disordered systems, and high energy physics. An illustration on the applicability of this method for the classification of the different stages involved in carcinogenesis is briefly discussed. PMID- 29347105 TI - Lattice gas with molecular dynamics collision operator. AB - We introduce a lattice gas implementation that is based on coarse-graining a molecular dynamics (MD) simulation. Such a lattice gas is similar to standard lattice gases, but its collision operator is informed by an underlying MD simulation. This can be considered an optimal lattice gas implementation because it allows for the representation of any system that can be simulated with MD. We show here that equilibrium behavior of the popular lattice Boltzmann algorithm is consistent with this optimal lattice gas. This comparison allows us to make a more accurate identification of the expressions for temperature and pressure in lattice Boltzmann simulations, which turn out to be related not only to the physical temperature and pressure but also to the lattice discretization. We show that for any spatial discretization, we need to choose a particular temporal discretization to recover the lattice Boltzmann equilibrium. PMID- 29347106 TI - Criticality in Brownian ensembles. AB - A Brownian ensemble appears as a nonequilibrium state of transition from one universality class of random matrix ensembles to another one. The parameter governing the transition is, in general, size-dependent, resulting in a rapid approach of the statistics, in infinite size limit, to one of the two universality classes. Our detailed analysis, however, reveals the appearance of a new scale-invariant spectral statistics, nonstationary along the spectrum, associated with multifractal eigenstates, and different from the two end-points if the transition parameter becomes size-independent. The number of such critical points during transition is governed by a competition between the average perturbation strength and the local spectral density. The results obtained here have applications to wide-ranging complex systems, e.g., those modeled by multiparametric Gaussian ensembles or column constrained ensembles. PMID- 29347107 TI - Hawkes process model with a time-dependent background rate and its application to high-frequency financial data. AB - A Hawkes process model with a time-varying background rate is developed for analyzing the high-frequency financial data. In our model, the logarithm of the background rate is modeled by a linear model with a relatively large number of variable-width basis functions, and the parameters are estimated by a Bayesian method. Our model can capture not only the slow time variation, such as in the intraday seasonality, but also the rapid one, which follows a macroeconomic news announcement. By analyzing the tick data of the Nikkei 225 mini, we find that (i) our model is better fitted to the data than the Hawkes models with a constant background rate or a slowly varying background rate, which have been commonly used in the field of quantitative finance; (ii) the improvement in the goodness of-fit to the data by our model is significant especially for sessions where considerable fluctuation of the background rate is present; and (iii) our model is statistically consistent with the data. The branching ratio, which quantifies the level of the endogeneity of markets, estimated by our model is 0.41, suggesting the relative importance of exogenous factors in the market dynamics. We also demonstrate that it is critically important to appropriately model the time-dependent background rate for the branching ratio estimation. PMID- 29347108 TI - In silico optimization of critical currents in superconductors. AB - For many technological applications of superconductors the performance of a material is determined by the highest current it can carry losslessly-the critical current. In turn, the critical current can be controlled by adding nonsuperconducting defects in the superconductor matrix. Here we report on systematic comparison of different local and global optimization strategies to predict optimal structures of pinning centers leading to the highest possible critical currents. We demonstrate performance of these methods for a superconductor with randomly placed spherical, elliptical, and columnar defects. PMID- 29347109 TI - Traveling waves in a spring-block chain sliding down a slope. AB - Traveling waves are studied in a spring slider-block model. We explicitly construct front waves (kinks) for a piecewise-linear spinodal friction force. Pulse waves are obtained as the matching of two traveling fronts with identical speeds. Explicit formulas are obtained for the wavespeed and the wave form in the anticontinuum limit. The link with localized waves in a Burridge-Knopoff model of an earthquake fault is briefly discussed. PMID- 29347110 TI - Influence of a dispersion of magnetic and nonmagnetic nanoparticles on the magnetic Fredericksz transition of the liquid crystal 5CB. AB - A long time ago, Brochard and de Gennes predicted the possibility of significantly decreasing the critical magnetic field of the Fredericksz transition (the magnetic Fredericksz threshold) in a mixture of nematic liquid crystals and ferromagnetic particles, the so-called ferronematics. This phenomenon is rarely measured to be large, due to soft homeotropic anchoring induced at the nanoparticle surface. Here we present an optical study of the magnetic Fredericksz transition combined with a light scattering study of the classical nematic liquid crystal: the pentylcyanobiphenyl (5CB), doped with 6 nm diameter magnetic and nonmagnetic nanoparticles. Surprisingly, for both nanoparticles, we observe at room temperature a net decrease of the threshold field of the Fredericksz transition at low nanoparticle concentrations, which appears associated with a coating of the nanoparticles by a brush of polydimethylsiloxane copolymer chains inducing planar anchoring of the director on the nanoparticle surface. Moreover, the magnetic Fredericksz threshold exhibits nonmonotonic behavior as a function of the nanoparticle concentration for both types of nanoparticles, first decreasing down to a value from 23% to 31% below that of pure 5CB, then increasing with a further increase of nanoparticle concentration. This is interpreted as an aggregation starting at around 0.02 weight fraction that consumes more isolated nanoparticles than those introduced when the concentration is increased above c=0.05 weight fraction (volume fraction 3.5*10^{-2}). This shows the larger effect of isolated nanoparticles on the threshold with respect to aggregates. From dynamic light scattering measurements we deduced that, if the decrease of the magnetic threshold when the nanoparticle concentration increases is similar for both kinds of nanoparticles, the origin of this decrease is different for magnetic and nonmagnetic nanoparticles. For nonmagnetic nanoparticles, the behavior may be associated with a decrease of the elastic constant due to weak planar anchoring. For magnetic nanoparticles there are non-negligible local magnetic interactions between liquid crystal molecules and magnetic nanoparticles, leading to an increase of the average order parameter. This magnetic interaction thus favors an easier liquid crystal director rotation in the presence of external magnetic field, able to reorient the magnetic moments of the nanoparticles along with the molecules. PMID- 29347111 TI - Eigenstate thermalization in the two-dimensional transverse field Ising model. II. Off-diagonal matrix elements of observables. AB - We study the matrix elements of few-body observables, focusing on the off diagonal ones, in the eigenstates of the two-dimensional transverse field Ising model. By resolving all symmetries, we relate the onset of quantum chaos to the structure of the matrix elements. In particular, we show that a general result of the theory of random matrices, namely, the value 2 of the ratio of variances (diagonal to off-diagonal) of the matrix elements of Hermitian operators, occurs in the quantum chaotic regime. Furthermore, we explore the behavior of the off diagonal matrix elements of observables as a function of the eigenstate energy differences and show that it is in accordance with the eigenstate thermalization hypothesis ansatz. PMID- 29347112 TI - Statistics, distillation, and ordering emergence in a two-dimensional stochastic model of particles in counterflowing streams. AB - In this paper, we propose a stochastic model which describes two species of particles moving in counterflow. The model generalizes the theoretical framework that describes the transport in random systems by taking into account two different scenarios: particles can work as mobile obstacles, whereas particles of one species move in the opposite direction to the particles of the other species, or particles of a given species work as fixed obstacles remaining in their places during the time evolution. We conduct a detailed study about the statistics concerning the crossing time of particles, as well as the effects of the lateral transitions on the time required to the system reaches a state of complete geographic separation of species. The spatial effects of jamming are also studied by looking into the deformation of the concentration of particles in the two dimensional corridor. Finally, we observe in our study the formation of patterns of lanes which reach the steady state regardless of the initial conditions used for the evolution. A similar result is also observed in real experiments involving charged colloids motion and simulations of pedestrian dynamics based on Langevin equations, when periodic boundary conditions are considered (particles counterflow in a ring symmetry). The results obtained through Monte Carlo simulations and numerical integrations are in good agreement with each other. However, differently from previous studies, the dynamics considered in this work is not Newton-based, and therefore, even artificial situations of self-propelled objects should be studied in this first-principles modeling. PMID- 29347113 TI - Counting statistics of chaotic resonances at optical frequencies: Theory and experiments. AB - A deformed dielectric microcavity is used as an experimental platform for the analysis of the statistics of chaotic resonances, in the perspective of testing fractal Weyl laws at optical frequencies. In order to surmount the difficulties that arise from reading strongly overlapping spectra, we exploit the mixed nature of the phase space at hand, and only count the high-Q whispering-gallery modes (WGMs) directly. That enables us to draw statistical information on the more lossy chaotic resonances, coupled to the high-Q regular modes via dynamical tunneling. Three different models [classical, Random-Matrix-Theory (RMT) based, semiclassical] to interpret the experimental data are discussed. On the basis of least-squares analysis, theoretical estimates of Ehrenfest time, and independent measurements, we find that a semiclassically modified RMT-based expression best describes the experiment in all its realizations, particularly when the resonator is coupled to visible light, while RMT alone still works quite well in the infrared. In this work we reexamine and substantially extend the results of a short paper published earlier [L. Wang et al., Phys. Rev. E 93, 040201(R) (2016)2470-004510.1103/PhysRevE.93.040201]. PMID- 29347114 TI - Passive scalar transport by a non-Gaussian turbulent flow in the Batchelor regime. AB - We analyze passive scalar advection by a turbulent flow in the Batchelor regime. No restrictions on the velocity statistics of the flow are assumed. The properties of the scalar are derived from the statistical properties of velocity; analytic expressions for the moments of scalar density are obtained. We show that the scalar statistics can differ significantly from that obtained in the frames of the Kraichnan model. PMID- 29347115 TI - Multiple-relaxation-time lattice Boltzmann simulation for flow, mass transfer, and adsorption in porous media. AB - In this paper, to predict the dynamics behaviors of flow and mass transfer with adsorption phenomena in porous media at the representative elementary volume (REV) scale, a multiple-relaxation-time (MRT) lattice Boltzmann (LB) model for the convection-diffusion equation is developed to solve the transfer problem with an unsteady source term in porous media. Utilizing the Chapman-Enskog analysis, the modified MRT-LB model can recover the macroscopic governing equations at the REV scale. The coupled MRT-LB model for momentum and mass transfer is validated by comparing with the finite-difference method and the analytical solution. Moreover, using the MRT-LB method coupled with the linear driving force model, the fluid transfer and adsorption behaviors of the carbon dioxide in a porous fixed bed are explored. The breakthrough curve of adsorption from MRT-LB simulation is compared with the experimental data and the finite-element solution, and the transient concentration distributions of the carbon dioxide along the porous fixed bed are elaborated upon in detail. In addition, the MRT-LB simulation results show that the appearance time of the breakthrough point in the breakthrough curve is advanced as the mass transfer resistance in the linear driving force model increases; however, the saturation point is prolonged inversely. PMID- 29347116 TI - Orientational dynamics of fluctuating dipolar particles assembled in a mesoscopic colloidal ribbon. AB - We combine experiments and theory to investigate the dynamics and orientational fluctuations of ferromagnetic microellipsoids that form a ribbonlike structure due to attractive dipolar forces. When assembled in the ribbon, the ellipsoids display orientational thermal fluctuations with an amplitude that can be controlled via application of an in-plane magnetic field. We use video microscopy to investigate the orientational dynamics in real time and space. Theoretical arguments are used to derive an analytical expression that describes how the distribution of the different angular configurations depends on the strength of the applied field. The experimental data are in good agreement with the developed model for all the range of field parameters explored. Understanding the role of fluctuations in chains composed of dipolar particles is important not only from a fundamental point of view, but it may also help understanding the stability of such structures against thermal noise, which is relevant in microfluidics and laboratory-on-a-chip applications. PMID- 29347117 TI - Molecular-dynamics study on characteristics of energy and tangential momentum accommodation coefficients. AB - Gas-surface interaction is studied by the molecular dynamics method to investigate qualitatively characteristics of accommodation coefficients. A large number of trajectories of gas molecules colliding to and scattering from a surface are statistically analyzed to calculate the energy (thermal) accommodation coefficient (EAC) and the tangential momentum accommodation coefficient (TMAC). Considering experimental measurements of the accommodation coefficients, the incident velocities are stochastically sampled to represent a bulk condition. The accommodation coefficients for noble gases show qualitative coincidence with experimental values. To investigate characteristics of these accommodation coefficients in detail, the gas-surface interaction is parametrically studied by varying the molecular mass of gas, the gas-surface interaction strength, and the molecular size of gas, one by one. EAC increases with increasing every parameter, while TMAC increases with increasing the interaction strength, but decreases with increasing the molecular mass and the molecular size. Thus, contradictory results in experimentally measured TMAC for noble gases could result from the difference between the surface conditions employed in the measurements in the balance among the effective parameters of molecular mass, interaction strength, and molecular size, due to surface roughness and/or adsorbed molecules. The accommodation coefficients for a thermo fluid dynamics field with a temperature difference between gas and surface and a bulk flow at the same time are also investigated. PMID- 29347118 TI - Linear stability of layered two-phase flows through parallel soft-gel-coated walls. AB - The linear stability of layered two-phase Poiseuille flows through soft-gel coated parallel walls is studied in this work. The focus is on determining the effect of the elastohydrodynamic coupling between the fluids and the soft-gel layers on the different instabilities observed in flows between parallel plates. The fluids are assumed Newtonian and incompressible, while the soft gels are modeled as linear viscoelastic solids. A long-wave asymptotic analysis is used to obtain an analytical expression for the growth rate of the disturbances. A Chebyshev collocation method is used to numerically solve the general linearized equations. Three distinct instability modes are identified in the flow: (a) a liquid-liquid long-wave mode; (b) a liquid-liquid short-wave mode; (c) a gel liquid short-wave mode. The effect of deformability of the soft gels on these three modes is analyzed. From the long-wave analysis of the liquid-liquid mode a stability map is obtained, in which four different regions are clearly demarcated. It is shown that introducing a gel layer near the more viscous fluid has a predominantly stabilizing effect on this mode seen in flows between rigid plates. For parameters where this mode is stable for flow between rigid plates, introducing a gel layer near the less viscous and thinner fluid has a predominantly destabilizing effect. The liquid-liquid short-wave mode is destabilized by the introduction of soft-gel layers. Additional instability modes at the gel-liquid interfaces induced by the deformability of the soft-gel layers are identified. We show that these can be controlled by varying the thickness of the gel layers. Insights into the physical mechanism driving different instabilities are obtained using an energy budget analysis. PMID- 29347119 TI - Disentangling structural information from core-level excitation spectra. AB - Core-level spectra of liquids can be difficult to interpret due to the presence of a range of local environments. We present computational methods for investigating core-level spectra based on the idea that both local structural parameters and the x-ray spectra behave as functions of the local atomic configuration around the absorbing site. We identify correlations between structural parameters and spectral intensities in defined regions of interest, using the oxygen K-edge excitation spectrum of liquid water as a test case. Our results show that this kind of analysis can find the main structure-spectral relationships of ice, liquid water, and supercritical water. PMID- 29347120 TI - Microscopic muon dynamics in the polymer electrolyte poly(ethylene oxide). AB - The microscopic dynamics of protons (H^{+}) in poly(ethylene oxide) (PEO) have been investigated through a study of implanted positive muons (Mu^{+}), which can be considered a light proton analog. The exponential decay of the muon spin polarization in zero magnetic field indicated that Mu^{+} hopping is in the fast fluctuation limit between 140 and 310 K and the relaxation rate was found to be sensitive to the glass transition. Mu^{+} dynamics in PEO was monitored via the relaxation of the muon spin polarization in a transverse field of 10 mT. Activated hopping of Mu^{+} was observed above the glass transition temperature with an activation barrier of 122+/-1 meV. The temperature dependence of the diamagnetic muon polarization in PEO can be explained by diffusion of radiolytic electrons. PMID- 29347121 TI - Recurrence in the high-order nonlinear Schrodinger equation: A low-dimensional analysis. AB - We study a three-wave truncation of the high-order nonlinear Schrodinger equation for deep-water waves (also named Dysthe equation). We validate the model by comparing it to numerical simulation; we distinguish the impact of the different fourth-order terms and classify the solutions according to their topology. This allows us to properly define the temporary spectral upshift occurring in the nonlinear stage of Benjamin-Feir instability and provides a tool for studying further generalizations of this model. PMID- 29347122 TI - Impact of the kinetic boundary condition on porous media flow in the lattice Boltzmann formulation. AB - To emphasize the importance of the kinetic boundary condition for micro- to nanoscale flow, we present an ad hoc kinetic boundary condition suitable for torturous geological porous media. We found that the kinetic boundary condition is one of the essential features which should be supplemented to the standard lattice Boltzmann scheme in order to obtain accurate continuum observables. The claim is validated using a channel flow setup by showing the agreement of mass flux with analytical value. Further, using a homogeneous porous structure, the importance of the kinetic boundary condition is shown by comparing the permeability correction factor with the analytical value. Finally, the proposed alternate to the kinetic boundary condition is validated by showing its capability to capture the basic feature of the kinetic boundary condition. PMID- 29347123 TI - Dislocation-free growth of quasicrystals from two seeds due to additional phasonic degrees of freedom. AB - We explore the growth of two-dimensional quasicrystals, i.e., aperiodic structures that possess long-range order, from two seeds at various distances and with different orientations by using dynamical phase-field crystal calculations. We compare the results to the growth of periodic crystals from two seeds. There, a domain border consisting of dislocations is observed in case of large distances between the seed and large angles between their orientation. Furthermore, a domain border is found if the seeds are placed at a distance that does not fit to the periodic lattice. In the case of the growth of quasicrystals, we only observe domain borders for large distances and different orientations. Note that all distances do inherently not match to a perfect domain wall-free quasicrystalline structure. Nevertheless, we find dislocation-free growth for all seeds at a small enough distance and for all seeds that approximately have the same orientation. In periodic structures, the stress that occurs due to incommensurate distances between the seeds results in phononic strain fields or, in the case of too large stresses, in dislocations. In contrast, in quasicrystals an additional phasonic strain field can occur and suppress dislocations. Phasons are additional degrees of freedom that are unique to quasicrystals. As a consequence, the additional phasonic strain field helps to distribute the stress and facilitates the growth of dislocation-free quasicrystals from multiple seeds. In contrast, in the periodic case the growth from multiple seeds most likely leads to a structure with multiple domains. Our work lays the theoretical foundations for growing perfect quasicrystals from different seeds and is therefore relevant for many applications. PMID- 29347124 TI - Controllability of flow-conservation networks. AB - The ultimate goal of exploring complex networks is to control them. As such, controllability of complex networks has been intensively investigated. Despite recent advances in studying the impact of a network's topology on its controllability, a comprehensive understanding of the synergistic impact of network topology and dynamics on controllability is still lacking. Here, we explore the controllability of flow-conservation networks, trying to identify the minimal number of driver nodes that can guide the network to any desirable state. We develop a method to analyze the controllability on flow-conservation networks based on exact controllability theory, transforming the original analysis on adjacency matrix to Laplacian matrix. With this framework, we systematically investigate the impact of some key factors of networks, including link density, link directionality, and link polarity, on the controllability of these networks. We also obtain the analytical equations by investigating the network's structural properties approximatively and design the efficient tools. Finally, we consider some real networks with flow dynamics, finding that their controllability is significantly different from that predicted by only considering the topology. These findings deepen our understanding of network controllability with flow conservation dynamics and provide a general framework to incorporate real dynamics in the analysis of network controllability. PMID- 29347125 TI - Interplay of different environments in open quantum systems: Breakdown of the additive approximation. AB - We analyze an open quantum system under the influence of more than one environment: a dephasing bath and a probability-absorbing bath that represents a decay channel, as encountered in many models of quantum networks. In our case, dephasing is modeled by random fluctuations of the site energies, while the absorbing bath is modeled with an external lead attached to the system. We analyze under which conditions the effects of the two baths can enter additively the quantum master equation. When such additivity is legitimate, the reduced master equation corresponds to the evolution generated by an effective non Hermitian Hamiltonian and a Haken-Strobl dephasing super-operator. We find that the additive decomposition is a good approximation when the strength of dephasing is small compared to the bandwidth of the probability-absorbing bath. PMID- 29347126 TI - Requisite ingredients for thermal rectification. AB - The present work is devoted to an analytical investigation of the thermal rectification mechanism. More specifically, we attempt to find the requisite ingredients for such a phenomenon to occur. Starting from the linearization of the time evolution equations of anharmonic chains of oscillators, we propose some effective harmonic toy models with a potential that is dependent on temperature, and we investigate their steady heat currents. This unusual temperature-dependent potential is the footprint of nonlinearity in the final effective linear model. The approach is not restricted to any particular regime of heat transport. Our results show that thermal rectification holds in a system if it has asymmetric parameters related to its own structure, e.g., a graded particle mass distribution and some other parameters or features dependent on the inner temperatures that change as we invert the baths at the boundaries. The description of rectification in these simplified models, with minimal ingredients, shows that it is a ubiquitous phenomenon, and it may serve as a guide for further research. PMID- 29347127 TI - Long-time instability in the Runge-Kutta algorithm for a Nose-Hoover heat bath of a harmonic chain and its stabilization. AB - In this paper, we investigate the Runge-Kutta algorithm for the Nose-Hoover heat bath of a harmonic chain. The Runge-Kutta algorithm is found to be unstable in long-time calculations, with the system temperature growing exponentially. The growth rate increases if time step size is chosen larger. By analyzing the Fourier spectra in both space (wave number) and time (frequency), we discover that the growth is caused by spurious energy accumulation, particularly at the largest wave number. Such accumulation may be explained by von Neumann analysis for an infinite chain, with the nonlinear heat bath being ignored. Furthermore, we propose to add a filter to remove excessive energy, which effectively stabilizes the algorithm. PMID- 29347128 TI - Finite-size effect on optimal efficiency of heat engines. AB - The optimal efficiency of quantum (or classical) heat engines whose heat baths are n-particle systems is given by the strong large deviation. We give the optimal work extraction process as a concrete energy-preserving unitary time evolution among the heat baths and the work storage. We show that our optimal work extraction turns the disordered energy of the heat baths to the ordered energy of the work storage, by evaluating the ratio of the entropy difference to the energy difference in the heat baths and the work storage, respectively. By comparing the statistical mechanical optimal efficiency with the macroscopic thermodynamic bound, we evaluate the accuracy of the macroscopic thermodynamics with finite-size heat baths from the statistical mechanical viewpoint. We also evaluate the quantum coherence effect on the optimal efficiency of the cycle processes without restricting their cycle time by comparing the classical and quantum optimal efficiencies. PMID- 29347129 TI - Boundary-layer effects in droplet splashing. AB - A drop falling onto a solid substrate will disintegrate into smaller parts when its impact velocity V exceeds the so-called critical velocity for splashing, i.e., when V>V^{*}. Under these circumstances, the very thin liquid sheet, which is ejected tangentially to the solid after the drop touches the substrate, lifts off as a consequence of the aerodynamic forces exerted on it. Subsequently, the growth of capillary instabilities breaks the toroidal rim bordering the ejecta into smaller droplets, violently ejected radially outward, provoking the splash [G. Riboux and J. M. Gordillo, Phys. Rev. Lett. 113, 024507 (2014)]PRLTAO0031 900710.1103/PhysRevLett.113.024507. In this contribution, the effect of the growth of the boundary layer is included in the splash model presented in Phys. Rev. Lett. 113, 024507 (2014)PRLTAO0031-900710.1103/PhysRevLett.113.024507, obtaining very good agreement between the measured and the predicted values of V^{*} for wide ranges of liquid and gas material properties, atmospheric pressures, and substrate wettabilities. Our description also modifies the way at when the liquid sheet is first ejected, which can now be determined in a much more straightforward manner than that proposed in Phys. Rev. Lett. 113, 024507 (2014)PRLTAO0031-900710.1103/PhysRevLett.113.024507. PMID- 29347130 TI - Low-algorithmic-complexity entropy-deceiving graphs. AB - In estimating the complexity of objects, in particular, of graphs, it is common practice to rely on graph- and information-theoretic measures. Here, using integer sequences with properties such as Borel normality, we explain how these measures are not independent of the way in which an object, such as a graph, can be described or observed. From observations that can reconstruct the same graph and are therefore essentially translations of the same description, we see that when applying a computable measure such as the Shannon entropy, not only is it necessary to preselect a feature of interest where there is one, and to make an arbitrary selection where there is not, but also more general properties, such as the causal likelihood of a graph as a measure (opposed to randomness), can be largely misrepresented by computable measures such as the entropy and entropy rate. We introduce recursive and nonrecursive (uncomputable) graphs and graph constructions based on these integer sequences, whose different lossless descriptions have disparate entropy values, thereby enabling the study and exploration of a measure's range of applications and demonstrating the weaknesses of computable measures of complexity. PMID- 29347131 TI - Minimum energy paths for conformational changes of viral capsids. AB - In this work we study conformational changes of viral capsids using techniques of large deviations theory for stochastic differential equations. The viral capsid is a model of a complex system in which many units-the proteins forming the capsomers-interact by weak forces to form a structure with exceptional mechanical resistance. The destabilization of such a structure is interesting both, per se, since it is related either to infection or maturation processes and because it yields insights into the stability of complex structures in which the constitutive elements interact by weak attractive forces. We focus here on a simplified model of a dodecahedral viral capsid and assume that the capsomers are rigid plaquettes with one degree of freedom each. We compute the most probable transition path from the closed capsid to the final configuration using minimum energy paths and discuss the stability of intermediate states. PMID- 29347132 TI - Finite-size scaling in the system of coupled oscillators with heterogeneity in coupling strength. AB - We consider a mean-field model of coupled phase oscillators with random heterogeneity in the coupling strength. The system that we investigate here is a minimal model that contains randomness in diverse values of the coupling strength, and it is found to return to the original Kuramoto model [Y. Kuramoto, Prog. Theor. Phys. Suppl. 79, 223 (1984)10.1143/PTPS.79.223] when the coupling heterogeneity disappears. According to one recent paper [H. Hong, H. Chate, L.-H. Tang, and H. Park, Phys. Rev. E 92, 022122 (2015)10.1103/PhysRevE.92.022122], when the natural frequency of the oscillator in the system is "deterministically" chosen, with no randomness in it, the system is found to exhibit the finite-size scaling exponent nu[over -]=5/4. Also, the critical exponent for the dynamic fluctuation of the order parameter is found to be given by gamma=1/4, which is different from the critical exponents for the Kuramoto model with the natural frequencies randomly chosen. Originally, the unusual finite-size scaling behavior of the Kuramoto model was reported by Hong et al. [H. Hong, H. Chate, H. Park, and L.-H. Tang, Phys. Rev. Lett. 99, 184101 (2007)10.1103/PhysRevLett.99.184101], where the scaling behavior is found to be characterized by the unusual exponent nu[over -]=5/2. On the other hand, if the randomness in the natural frequency is removed, it is found that the finite-size scaling behavior is characterized by a different exponent, nu[over -]=5/4 [H. Hong, H. Chate, L.-H. Tang, and H. Park, Phys. Rev. E 92, 022122 (2015)10.1103/PhysRevE.92.022122]. Those findings brought about our curiosity and led us to explore the effects of the randomness on the finite-size scaling behavior. In this paper, we pay particular attention to investigating the finite-size scaling and dynamic fluctuation when the randomness in the coupling strength is considered. PMID- 29347133 TI - One-dimensional long-range percolation: A numerical study. AB - In this paper we study bond percolation on a one-dimensional chain with power-law bond probability C/r^{d+sigma}, where r is the distance length between distinct sites and d=1. We introduce and test an order-N Monte Carlo algorithm and we determine as a function of sigma the critical value C_{c} at which percolation occurs. The critical exponents in the range 00. PMID- 29347134 TI - Dynamics of scroll waves in a cylinder jacket geometry. AB - The dynamics of scroll waves in a narrow cylinder jacket-shaped reactor is investigated experimentally by optical tomography. The fate of the scroll waves of excitation in the Belousov-Zhabotinsky reaction depends on the thickness of the cylinder jacket. While at sufficiently wide cylinder jackets vertically oriented scroll waves remain stable, the probability that the filament of a scroll hits a lateral wall increases as the cylinder jacket narrows. This may lead to the rupture of the initial filament and pinning of the filament ends at the lateral walls. Filaments that pin to opposite lateral walls shrink and reorient to a horizontal orientation; such a reorientation corresponds to a transition from an intramural to a transmural scroll wave. The kinetics of the reorientation and shrinkage of the scrolls were studied. Furthermore, we find that no new filaments were generated upon collision of excitation waves at the side of the cylinder jacket opposite to the scroll wave. Thus, under the studied conditions, we do not observe any new generation of filaments due to a phenomenon like reentry. PMID- 29347135 TI - Discrete-time dynamic network model for the spread of susceptible-infective recovered diseases. AB - We propose a discrete-time dynamic network model describing the spread of susceptible-infective-recovered diseases in a population. We consider the case in which the nodes in the network change their links due to social mixing dynamics as well as in response to the disease. The model shows the behavior that, as we increase social mixing, disease spread is inhibited in certain cases, while in other cases it is enhanced. We also extend this dynamic network model to take into account the case of hidden infection. Here we find that, as expected, the disease spreads more readily if there is a time period after contracting the disease during which an individual is infective but is not known to have the disease. PMID- 29347136 TI - Linking initial microstructure and local response during quasistatic granular compaction. AB - We performed experiments combining three-dimensional x-ray diffraction and x-ray computed tomography to explore the relationship between microstructure and local force and strain during quasistatic granular compaction. We found that initial void space around a grain and contact coordination number before compaction can be used to predict regions vulnerable to above-average local force and strain at later stages of compaction. We also found correlations between void space around a grain and coordination number, and between grain stress and maximum interparticle force, at all stages of compaction. Finally, we observed grains that fracture to have an above-average initial local void space and a below average initial coordination number. Our findings provide (1) a detailed description of microstructure evolution during quasistatic granular compaction, (2) an approach for identifying regions vulnerable to large values of strain and interparticle force, and (3) methods for identifying regions of a material with large interparticle forces and coordination numbers from measurements of grain stress and local porosity. PMID- 29347137 TI - Hyperuniformity of initial conditions and critical decay of a diffusive epidemic process belonging to the Manna class. AB - For a fixed-energy Manna sandpile model belonging to a Manna class in one dimension (d=1), we recently showed that the critical decay is different for random and regular initial conditions (ICs). Compared with previous results of natural IC for several models, we suggested for the Manna class that the critical decay depends on the characteristics of the three ICs. But the dependence on the random and regular ICs was shown only for a single model. In this work, we study the critical decay for the random and regular ICs for another model of the Manna class in d=1, a diffusive epidemic process. It is shown that the critical decay exponent agrees with the previous result for each IC, which verifies that IC dependence is a common feature of the Manna class. In addition, for the random and regular ICs, we measure the variance sigma^{2}(r) of total particle density in a region of size r by increasing r up to system size and investigate its temporal evolution toward the value sigma_{q}^{2}(r) of the quasisteady state at criticality. In d=1,sigma^{2}(r) scales as sigma^{2}(r)~r^{-psi} with psi=1 for random distributions and 1 that a random walk needs to cover completely a two-dimensional torus of size L*L. They confirm the mathematical prediction that ~(LlnL)^{2} for large L, but the prefactor seems to deviate significantly from the supposedly exact result 4/pi derived by Dembo et al. [Ann. Math. 160, 433 (2004)ANMAAH0003 486X10.4007/annals.2004.160.433], if the most straightforward extrapolation is used. On the other hand, we find that this scaling does hold for the time T_{N(t)=1}(L) at which the average number of yet unvisited sites is 1, as also predicted previously. This might suggest (wrongly) that and T_{N(t)=1}(L) scale differently, although the distribution of rescaled cover times becomes sharp in the limit L->infinity. But our results can be reconciled with those of Dembo et al. by a very slow and nonmonotonic convergence of /(LlnL)^{2}, as had been indeed proven by Belius et al. [Probab. Theory Relat. Fields 167, 461 (2017)10.1007/s00440-015-0689-6] for Brownian walks, and was conjectured by them to hold also for lattice walks. PMID- 29347168 TI - Quantifying the entropic cost of cellular growth control. AB - Viewing the ways a living cell can organize its metabolism as the phase space of a physical system, regulation can be seen as the ability to reduce the entropy of that space by selecting specific cellular configurations that are, in some sense, optimal. Here we quantify the amount of regulation required to control a cell's growth rate by a maximum-entropy approach to the space of underlying metabolic phenotypes, where a configuration corresponds to a metabolic flux pattern as described by genome-scale models. We link the mean growth rate achieved by a population of cells to the minimal amount of metabolic regulation needed to achieve it through a phase diagram that highlights how growth suppression can be as costly (in regulatory terms) as growth enhancement. Moreover, we provide an interpretation of the inverse temperature beta controlling maximum-entropy distributions based on the underlying growth dynamics. Specifically, we show that the asymptotic value of beta for a cell population can be expected to depend on (i) the carrying capacity of the environment, (ii) the initial size of the colony, and (iii) the probability distribution from which the inoculum was sampled. Results obtained for E. coli and human cells are found to be remarkably consistent with empirical evidence. PMID- 29347169 TI - Nonlinear mechanics of rigidifying curves. AB - Thin shells are characterized by a high cost of stretching compared to bending. As a result isometries of the midsurface of a shell play a crucial role in their mechanics. In turn, curves on the midsurface with zero normal curvature play a critical role in determining the number and behavior of isometries. In this paper, we show how the presence of these curves results in a decrease in the number of linear isometries. Paradoxically, shells are also known to continuously fold more easily across these rigidifying curves than other curves on the surface. We show how including nonlinearities in the strain can explain these phenomena and demonstrate folding isometries with explicit solutions to the nonlinear isometry equations. In addition to explicit solutions, exact geometric arguments are given to validate and guide our analysis in a coordinate-free way. PMID- 29347170 TI - Information propagation in a noisy gene cascade. AB - We use information theory to study the information transmission through a simple gene cascade where the product of an unregulated gene regulates the expression activity of a cooperative genetic switch. While the input signal is provided by the upstream gene with two states, we consider that the expression of downstream gene is controlled by a cis-regulatory system with three binding sites for the regulator product, which can bind cooperatively. By computing exactly the associated probability distributions, we estimate information transmission thought the mutual information measure. We found that the mutual information associated with unimodal input signal is lower than the associated with bimodal inputs. We also observe that mutual information presents a maximum in the cooperativity intensity, and the position of this maximum depends on the kinetic rates of the promoter. Furthermore, we found that the bursting dynamics of the input signal can enhance the information transmission capacity. PMID- 29347171 TI - Properties and relative measure for quantifying quantum synchronization. AB - Although quantum synchronization phenomena and corresponding measures have been widely discussed recently, it is still an open question how to characterize directly the influence of nonlocal correlation, which is the key distinction for identifying classical and quantum synchronizations. In this paper, we present basic postulates for quantifying quantum synchronization based on the related theory in Mari's work [Phys. Rev. Lett. 111, 103605 (2013)PRLTAO0031 900710.1103/PhysRevLett.111.103605], and we give a general formula of a quantum synchronization measure with clear physical interpretations. By introducing Pearson's parameter, we show that the obvious characteristics of our measure are the relativity and monotonicity. As an example, the measure is applied to describe synchronization among quantum optomechanical systems under a Markovian bath. We also show the potential by quantifying generalized synchronization and discrete variable synchronization with this measure. PMID- 29347172 TI - Dynamic finite-size scaling at first-order transitions. AB - We investigate the dynamic behavior of finite-size systems close to a first-order transition (FOT). We develop a dynamic finite-size scaling (DFSS) theory for the dynamic behavior in the coexistence region where different phases coexist. This is characterized by an exponentially large time scale related to the tunneling between the two phases. We show that, when considering time scales of the order of the tunneling time, the dynamic behavior can be described by a two-state coarse-grained dynamics. This allows us to obtain exact predictions for the dynamical scaling functions. To test the general DFSS theory at FOTs, we consider the two-dimensional Ising model in the low-temperature phase, where the external magnetic field drives a FOT, and the 20-state Potts model, which undergoes a thermal FOT. Numerical results for a purely relaxational dynamics fully confirm the general theory. PMID- 29347173 TI - Hybrid colored noise process with space-dependent switching rates. AB - A fundamental issue in the theory of continuous stochastic process is the interpretation of multiplicative white noise, which is often referred to as the Ito-Stratonovich dilemma. From a physical perspective, this reflects the need to introduce additional constraints in order to specify the nature of the noise, whereas from a mathematical perspective it reflects an ambiguity in the formulation of stochastic differential equations (SDEs). Recently, we have identified a mechanism for obtaining an Ito SDE based on a form of temporal disorder. Motivated by switching processes in molecular biology, we considered a Brownian particle that randomly switches between two distinct conformational states with different diffusivities. In each state, the particle undergoes normal diffusion (additive noise) so there is no ambiguity in the interpretation of the noise. However, if the switching rates depend on position, then in the fast switching limit one obtains Brownian motion with a space-dependent diffusivity of the Ito form. In this paper, we extend our theory to include colored additive noise. We show that the nature of the effective multiplicative noise process obtained by taking both the white-noise limit (kappa->0) and fast switching limit (epsilon->0) depends on the order the two limits are taken. If the white-noise limit is taken first, then we obtain Ito, and if the fast switching limit is taken first, then we obtain Stratonovich. Moreover, the form of the effective diffusion coefficient differs in the two cases. The latter result holds even in the case of space-independent transition rates, where one obtains additive noise processes with different diffusion coefficients. Finally, we show that yet another form of multiplicative noise is obtained in the simultaneous limit epsilon,kappa->0 with epsilon/kappa^{2} fixed. PMID- 29347174 TI - Periodic jetting and monodisperse jet drops from oblique gas injection. AB - When air is blown in a straw or tube near an air-liquid interface, typically one of two behaviors is observed: a dimple in the liquid's surface, or a frenzy of sputtering bubbles, waves, and spray. Here we report and characterize an intermediate regime that can develop when a confined air jet enters the interface at an angle. This regime is oscillatory with a distinct characteristic frequency and can develop periodic angled jets that can break up into monodisperse aerosols. The underlying mechanisms responsible for this highly periodic regime are not well understood. Here we flow a continuous stream of gas through a tube near a liquid surface, observing both optically and acoustically the deformation of the liquid-air interface as various parameters are systematically adjusted. We show that the Kelvin-Helmholtz instability is responsible for the inception of waves within a cavity formed by the gas. Inertia, gravity, and capillary forces both shape the cavity and govern the frequency and amplitude of these gas-induced cavity waves. The flapping cavity focuses the waves into a series of periodic jets that can break up into droplets following the Rayleigh-Plateau instability. We present scaling arguments to rationalize the fundamental frequencies driving this system, as well as the conditions that bound the periodic regime. These frequencies and conditions compare well with our experimental results. PMID- 29347175 TI - Publisher's Note: Asymmetric transmission of sound wave in cavitating liquids [Phys. Rev. E 95, 033118 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.95.033118. PMID- 29347176 TI - Optimal allocation of resources for suppressing epidemic spreading on networks. AB - Efficient allocation of limited medical resources is crucial for controlling epidemic spreading on networks. Based on the susceptible-infected-susceptible model, we solve the optimization problem of how best to allocate the limited resources so as to minimize prevalence, providing that the curing rate of each node is positively correlated to its medical resource. By quenched mean-field theory and heterogeneous mean-field (HMF) theory, we prove that an epidemic outbreak will be suppressed to the greatest extent if the curing rate of each node is directly proportional to its degree, under which the effective infection rate lambda has a maximal threshold lambda_{c}^{opt}=1/, where is the average degree of the underlying network. For a weak infection region (lambda?lambda_{c}^{opt}), we combine perturbation theory with the Lagrange multiplier method (LMM) to derive the analytical expression of optimal allocation of the curing rates and the corresponding minimized prevalence. For a general infection region (lambda>lambda_{c}^{opt}), the high-dimensional optimization problem is converted into numerically solving low-dimensional nonlinear equations by the HMF theory and LMM. Counterintuitively, in the strong infection region the low-degree nodes should be allocated more medical resources than the high-degree nodes to minimize prevalence. Finally, we use simulated annealing to validate the theoretical results. PMID- 29347177 TI - Theory of helicoids and skyrmions in confined cholesteric liquid crystals. AB - Cholesteric liquid crystals experience geometric frustration when they are confined between surfaces with anchoring conditions that are incompatible with the cholesteric twist. Because of this frustration, they develop complex topological defect structures, which may be helicoids or skyrmions. We develop a theory for these structures, which extends previous theoretical research by deriving exact solutions for helicoids with the assumption of constant azimuth, calculating numerical solutions for helicoids and skyrmions with varying azimuth, and interpreting the results in terms of competition between terms in the free energy. PMID- 29347178 TI - Stability of the fluid interface in a Hele-Shaw cell subjected to horizontal vibrations. AB - The stability of the horizontal interface of two immiscible viscous fluids in a Hele-Shaw cell subject to gravity and horizontal vibrations is studied. The problem is reduced to the generalized Hill equation, which is solved analytically by the multiple scale method and numerically. The long-wave instability, the resonance (parametric resonance) excitation of waves at finite frequencies of vibrations (for the first three resonances), and the limit of high-frequency vibrations are studied analytically under the assumption of small amplitudes of vibrations and small viscosity. For finite amplitudes of vibrations, finite wave numbers, and finite viscosity, the study is performed numerically. The influence of the specific natural control parameters and physical parameters of the system on its instability threshold is discussed. The results provide extension to other results [J. Bouchgl, S. Aniss, and M. Souhar, Phys. Rev. E 88, 023027 (2013)10.1103/PhysRevE.88.023027], where the authors considered a similar problem but took into account viscosity in the basic state and did not consider it in the equations for perturbations. PMID- 29347179 TI - Classical ergodicity and quantum eigenstate thermalization: Analysis in fully connected Ising ferromagnets. AB - We investigate the relation between the classical ergodicity and the quantum eigenstate thermalization in the fully connected Ising ferromagnets. In the case of spin-1/2, an expectation value of an observable in a single-energy eigenstate coincides with the long-time average in the underlying classical dynamics, which is a consequence of the Wentzel-Kramers-Brillouin approximation. In the case of spin-1, the underlying classical dynamics is not necessarily ergodic. In that case, it turns out that, in the thermodynamic limit, the statistics of the expectation values of an observable in the energy eigenstates coincides with the statistics of the long-time averages in the underlying classical dynamics starting from random initial states sampled uniformly from the classical phase space. This feature seems to be a general property in semiclassical systems, and the result presented here is crucial in discussing equilibration, thermalization, and dynamical transitions of such systems. PMID- 29347180 TI - Lattice Boltzmann modeling and simulation of liquid jet breakup. AB - A three-dimensional color-fluid lattice Boltzmann model for immiscible two-phase flows is developed in the framework of a three-dimensional 27-velocity (D3Q27) lattice. The collision operator comprises the D3Q27 versions of three suboperators: a multiple-relaxation-time (MRT) collision operator, a generalized Liu-Valocchi-Kang perturbation operator, and a Latva-Kokko-Rothman recoloring operator. A D3Q27 version of an enhanced equilibrium distribution function is also incorporated into this model to improve the Galilean invariance. Three types of numerical tests, namely, a static droplet, an oscillating droplet, and the Rayleigh-Taylor instability, show a good agreement with analytical solutions and numerical simulations. Following these numerical tests, this model is applied to liquid-jet-breakup simulations. The simulation conditions are matched to the conditions of the previous experiments. In this case, numerical stability is maintained throughout the simulation, although the kinematic viscosity for the continuous phase is set as low as 1.8*10^{-4}, in which case the corresponding Reynolds number is 3.4*10^{3}; the developed lattice Boltzmann model based on the D3Q27 lattice enables us to perform the simulation with parameters directly matched to the experiments. The jet's liquid column transitions from an asymmetrical to an axisymmetrical shape, and entrainment occurs from the side of the jet. The measured time history of the jet's leading-edge position shows a good agreement with the experiments. Finally, the reproducibility of the regime map for liquid-liquid systems is assessed. The present lattice Boltzmann simulations well reproduce the characteristics of predicted regimes, including varicose breakup, sinuous breakup, and atomization. PMID- 29347181 TI - Relationship between the size of a camphor-driven rotor and its angular velocity. AB - We consider a rotor made of two camphor disks glued below the ends of a plastic stripe. The disks are floating on a water surface and the plastic stripe does not touch the surface. The system can rotate around a vertical axis located at the center of the stripe. The disks dissipate camphor molecules. The driving momentum comes from the nonuniformity of surface tension resulting from inhomogeneous surface concentration of camphor molecules around the disks. We investigate the stationary angular velocity as a function of rotor radius l. For large l the angular velocity decreases for increasing l. At a specific value of l the angular velocity reaches its maximum and, for short l it rapidly decreases. Such behavior is confirmed by a simple numerical model. The model also predicts that there is a critical rotor size below which it does not rotate. Within the introduced model we analyze the type of this bifurcation. PMID- 29347182 TI - Propulsion via flexible flapping in granular media. AB - Biological locomotion in nature is often achieved by the interaction between a flexible body and its surrounding medium. The interaction of a flexible body with granular media is less understood compared with viscous fluids partially due to its complex rheological properties. In this work, we explore the effect of flexibility on granular propulsion by considering a simple mechanical model in which a rigid rod is connected to a torsional spring that is under a displacement actuation using a granular resistive force theory. Through a combined numerical and asymptotic investigation, we characterize the propulsive dynamics of such a flexible flapper in relation to the actuation amplitude and spring stiffness, and we compare these dynamics with those observed in a viscous fluid. In addition, we demonstrate that the maximum possible propulsive force can be obtained in the steady propulsion limit with a finite spring stiffness and large actuation amplitude. These results may apply to the development of synthetic locomotive systems that exploit flexibility to move through complex terrestrial media. PMID- 29347183 TI - Quantum dynamics of long-range interacting systems using the positive-P and gauge P representations. AB - We provide the necessary framework for carrying out stochastic positive-P and gauge-P simulations of bosonic systems with long-range interactions. In these approaches, the quantum evolution is sampled by trajectories in phase space, allowing calculation of correlations without truncation of the Hilbert space or other approximations to the quantum state. The main drawback is that the simulation time is limited by noise arising from interactions. We show that the long-range character of these interactions does not further increase the limitations of these methods, in contrast to the situation for alternatives such as the density matrix renormalization group. Furthermore, stochastic gauge techniques can also successfully extend simulation times in the long-range interaction case, by making using of parameters that affect the noise properties of trajectories, without affecting physical observables. We derive essential results that significantly aid the use of these methods: estimates of the available simulation time, optimized stochastic gauges, a general form of the characteristic stochastic variance, and adaptations for very large systems. Testing the performance of particular drift and diffusion gauges for nonlocal interactions, we find that, for small to medium systems, drift gauges are beneficial, whereas for sufficiently large systems, it is optimal to use only a diffusion gauge. The methods are illustrated with direct numerical simulations of interaction quenches in extended Bose-Hubbard lattice systems and the excitation of Rydberg states in a Bose-Einstein condensate, also without the need for the typical frozen gas approximation. We demonstrate that gauges can indeed lengthen the useful simulation time. PMID- 29347184 TI - Boundary in the dynamic phase of globally coupled oscillatory and excitable units. AB - There is a crucial boundary between dynamic phase 1 and dynamic phase 2 of globally coupled oscillatory and excitable units, where the mean field is constant and oscillates in the former and the latter, respectively. This boundary is theoretically derived here for a large population of dynamical units, each having only a phase variable, where it is assumed that both the coupling strength and the distribution width of bifurcation parameters are equally small. This theory, which is applicable only if all or most of the units are intrinsically oscillatory, is confirmed to agree with simulation results for two different distribution densities. PMID- 29347185 TI - Balancing specificity, sensitivity, and speed of ligand discrimination by zero order ultraspecificity. AB - Specific interactions between receptors and their target ligands in the presence of nontarget ligands are crucial for biological processes such as T cell ligand discrimination. To discriminate between the target and nontarget ligands, cells have to increase specificity to the target ligands by amplifying the small differences in affinity among ligands. In addition, sensitivity to the ligand concentration and quick discrimination are also important to detect low amounts of target ligands and facilitate fast cellular decision making after ligand recognition. In this work we propose a mechanism for nonlinear specificity amplification (ultraspecificity) based on zero-order saturating reactions, which was originally proposed to explain nonlinear sensitivity amplification (ultrasensitivity) to the ligand concentration. In contrast to the previously proposed proofreading mechanisms that amplify the specificity by a multistep reaction, our model can produce an optimal balance of specificity, sensitivity, and quick discrimination. Furthermore, we show that a model for insensitivity to a large number of nontarget ligands can be naturally derived from a model with the zero-order ultraspecificity. The zero-order ultraspecificity, therefore, may provide an alternative way to understand ligand discrimination from the viewpoint of nonlinear properties in biochemical reactions. PMID- 29347186 TI - Extreme event statistics in a drifting Markov chain. AB - We analyze extreme event statistics of experimentally realized Markov chains with various drifts. Our Markov chains are individual trajectories of a single atom diffusing in a one-dimensional periodic potential. Based on more than 500 individual atomic traces we verify the applicability of the Sparre Andersen theorem to our system despite the presence of a drift. We present detailed analysis of four different rare-event statistics for our system: the distributions of extreme values, of record values, of extreme value occurrence in the chain, and of the number of records in the chain. We observe that, for our data, the shape of the extreme event distributions is dominated by the underlying exponential distance distribution extracted from the atomic traces. Furthermore, we find that even small drifts influence the statistics of extreme events and record values, which is supported by numerical simulations, and we identify cases in which the drift can be determined without information about the underlying random variable distributions. Our results facilitate the use of extreme event statistics as a signal for small drifts in correlated trajectories. PMID- 29347187 TI - Mean-field dynamics of a population of stochastic map neurons. AB - We analyze the emergent regimes and the stimulus-response relationship of a population of noisy map neurons by means of a mean-field model, derived within the framework of cumulant approach complemented by the Gaussian closure hypothesis. It is demonstrated that the mean-field model can qualitatively account for stability and bifurcations of the exact system, capturing all the generic forms of collective behavior, including macroscopic excitability, subthreshold oscillations, periodic or chaotic spiking, and chaotic bursting dynamics. Apart from qualitative analogies, we find a substantial quantitative agreement between the exact and the approximate system, as reflected in matching of the parameter domains admitting the different dynamical regimes, as well as the characteristic properties of the associated time series. The effective model is further shown to reproduce with sufficient accuracy the phase response curves of the exact system and the assembly's response to external stimulation of finite amplitude and duration. PMID- 29347188 TI - Reply to "Comment on 'Flow of wet granular materials: A numerical study' ". AB - In his Comment on our paper [Phys. Rev. E 92, 022201 (2015)10.1103/PhysRevE.92.022201], Chareyre criticizes, as inaccurate, the simple approach we adopted to explain the strong enhancement of the quasistatic shear strength of the material caused by capillary cohesion. He also observes that a similar form of the "effective stress" approach, accounting for the capillary shear stress, which we neglected, results in a quantitatively correct prediction of this yield stress. We agree with these remarks, which we deem quite relevant and valuable. We nevertheless point out that the initial approximation, despite ~25% errors on shear strength in the worst cases, provides a convenient estimate of the Mohr-Coulomb cohesion of the material, which is directly related to the coordination number. We argue that the effective stress assumption, despite its surprising success in the range of states explored in Khamseh et al. [Phys. Rev. E 92, 022201 (2015)10.1103/PhysRevE.92.022201], is bound to fail in strongly cohesion-dominated material states. PMID- 29347189 TI - Turing mechanism for homeostatic control of synaptic density during C. elegans growth. AB - We propose a mechanism for the homeostatic control of synapses along the ventral cord of Caenorhabditis elegans during development, based on a form of Turing pattern formation on a growing domain. C. elegans is an important animal model for understanding cellular mechanisms underlying learning and memory. Our mathematical model consists of two interacting chemical species, where one is passively diffusing and the other is actively trafficked by molecular motors, which switch between forward and backward moving states (bidirectional transport). This differs significantly from the standard mechanism for Turing pattern formation based on the interaction between fast and slow diffusing species. We derive evolution equations for the chemical concentrations on a slowly growing one-dimensional domain, and use numerical simulations to demonstrate the insertion of new concentration peaks as the length increases. Taking the passive component to be the protein kinase CaMKII and the active component to be the glutamate receptor GLR-1, we interpret the concentration peaks as sites of new synapses along the length of C. elegans, and thus show how the density of synaptic sites can be maintained. PMID- 29347190 TI - Exact phase boundaries and topological phase transitions of the XYZ spin chain. AB - Within the block spin renormalization group, we give a very simple derivation of the exact phase boundaries of the XYZ spin chain. First, we identify the Ising order along x[over ] or y[over ] as attractive renormalization group fixed points of the Kitaev chain. Then, in a global phase space composed of the anisotropy lambda of the XY interaction and the coupling Delta of the Deltasigma^{z}sigma^{z} interaction, we find that the above fixed points remain attractive in the two-dimesional parameter space. We therefore classify the gapped phases of the XYZ spin chain as: (1) either attracted to the Ising limit of the Kitaev-chain, which in turn is characterized by winding number +/-1, depending on whether the Ising order parameter is along x[over ] or y[over ] directions; or (2) attracted to the charge density wave (CDW) phases of the underlying Jordan-Wigner fermions, which is characterized by zero winding number. We therefore establish that the exact phase boundaries of the XYZ model in Baxter's solution indeed correspond to topological phase transitions. The topological nature of the phase transitions of the XYZ model justifies why our analytical solution of the three-site problem that is at the core of the present renormalization group treatment is able to produce the exact phase boundaries of Baxter's solution. We argue that the distribution of the winding numbers between the three Ising phases is a matter of choice of the coordinate system, and therefore the CDW-Ising phase is entitled to host appropriate form of zero modes. We further observe that in the Kitaev-chain the renormalization group flow can be cast into a geometric progression of a properly identified parameter. We show that this new parameter is actually the size of the (Majorana) zero modes. PMID- 29347191 TI - Time-reversal symmetry for systems in a constant external magnetic field. AB - The time-reversal properties of charged systems in a constant external magnetic field are reconsidered in this paper. We show that the evolution equations of the system are invariant under a new symmetry operation that implies a new signature property for time-correlation functions under time reversal. We then show how these findings can be combined with a previously identified symmetry to determine, for example, null components of the correlation functions of velocities and currents and of the associated transport coefficients. These theoretical predictions are illustrated by molecular dynamics simulations of superionic AgI. PMID- 29347192 TI - Endoreversible quantum heat engines in the linear response regime. AB - We analyze general models of quantum heat engines operating a cycle of two adiabatic and two isothermal processes. We use the quantum master equation for a system to describe heat transfer current during a thermodynamic process in contact with a heat reservoir, with no use of phenomenological thermal conduction. We apply the endoreversibility description to such engine models working in the linear response regime and derive expressions of the efficiency and the power. By analyzing the entropy production rate along a single cycle, we identify the thermodynamic flux and force that a linear relation connects. From maximizing the power output, we find that such heat engines satisfy the tight coupling condition and the efficiency at maximum power agrees with the Curzon Ahlborn efficiency known as the upper bound in the linear response regime. PMID- 29347193 TI - Pseudo-Hermitian anti-Hermitian ensemble of Gaussian matrices. AB - It is shown that the ensemble of pseudo-Hermitian Gaussian matrices recently introduced gives rise in a certain limit to an ensemble of anti-Hermitian matrices whose eigenvalues have properties directly related to those of the chiral ensemble of random matrices. PMID- 29347194 TI - Comment on "Flow of wet granular materials: A numerical study". AB - The effective stress model of Khamseh et al., Phys. Rev. E 92, 022201 (2015)PLEEE81539-375510.1103/PhysRevE.92.022201 is in semiquantitative agreement with the shear stress in simulated steady state flow of a wet granular material. Nonetheless, the predictions are increasingly biased at low normal pressure. The approximation of the capillary stress by a spherical tensor in this model is a sufficient cause of the prediction errors, as shown in this Comment. The re examination reveals an excellent agreement between the data and the effective stress expression formerly introduced for similar systems, further validating a yet unexplained empirical result. PMID- 29347195 TI - Floquet analysis of Kuznetsov-Ma breathers: A path towards spectral stability of rogue waves. AB - In the present work, we aim at taking a step towards the spectral stability analysis of Peregrine solitons, i.e., wave structures that are used to emulate extreme wave events. Given the space-time localized nature of Peregrine solitons, this is a priori a nontrivial task. Our main tool in this effort will be the study of the spectral stability of the periodic generalization of the Peregrine soliton in the evolution variable, namely the Kuznetsov-Ma breather. Given the periodic structure of the latter, we compute the corresponding Floquet multipliers, and examine them in the limit where the period of the orbit tends to infinity. This way, we extrapolate towards the stability of the limiting structure, namely the Peregrine soliton. We find that multiple unstable modes of the background are enhanced, yet no additional unstable eigenmodes arise as the Peregrine limit is approached. We explore the instability evolution also in direct numerical simulations. PMID- 29347196 TI - Iterative control strategies for nonlinear systems. AB - In this paper, we focus on the control of the mean-field equilibrium of nonlinear networks of the Langevin type in the limit of small noise. Using iterative linear approximations, we derive a formula that prescribes a control strategy in order to displace the equilibrium state of a given system and remarkably find that the control function has a "universal" form under certain physical conditions. This result can be employed to define universal protocols useful, for example, in the optimal work extraction from a given reservoir. Generalizations and limits of application of the method are discussed. PMID- 29347197 TI - Dynamical crossover in a stochastic model of cell fate decision. AB - We study the asymptotic behaviors of stochastic cell fate decision between proliferation and differentiation. We propose a model of a self-replicating Langevin system, where cells choose their fate (i.e., proliferation or differentiation) depending on local cell density. Based on this model, we propose a scenario for multicellular organisms to maintain the density of cells (i.e., homeostasis) through finite-ranged cell-cell interactions. Furthermore, we numerically show that the distribution of the number of descendant cells changes over time, thus unifying the previously proposed two models regarding homeostasis: the critical birth death process and the voter model. Our results provide a general platform for the study of stochastic cell fate decision in terms of nonequilibrium statistical mechanics. PMID- 29347198 TI - Supercritical Gruneisen parameter and its universality at the Frenkel line. AB - We study the thermomechanical properties of matter under extreme conditions deep in the supercritical state, at temperatures exceeding the critical one by up to four orders of magnitude. We calculate the Gruneisen parameter gamma and find that on isochores it decreases with temperature from 3 to 1, depending on the density. Our results indicate that from the perspective of thermomechanical properties, the supercritical state is characterized by a wide range of gamma's which includes solidlike values-an interesting finding in view of the common perception of the supercritical state as being an intermediate state between gases and liquids. We rationalize this result by considering the relative weights of oscillatory and diffusive components of the supercritical system below the Frenkel line. We also find that gamma is nearly constant at the Frenkel line above the critical point and explain this universality in terms of the pressure and temperature scaling of system properties along the lines where particle dynamics changes qualitatively. PMID- 29347199 TI - Single and double linear and nonlinear flatband chains: Spectra and modes. AB - We report results of systematic analysis of various modes in the flatband lattice, based on the diamond-chain model with the on-site cubic nonlinearity, and its double version with the linear on-site mixing between the two lattice fields. In the single-chain system, a full analysis is presented, first, for the single nonlinear cell, making it possible to find all stationary states, viz., antisymmetric, symmetric, and asymmetric ones, including an exactly investigated symmetry-breaking bifurcation of the subcritical type. In the nonlinear infinite single-component chain, compact localized states (CLSs) are found in an exact form too, as an extension of known compact eigenstates of the linear diamond chain. Their stability is studied by means of analytical and numerical methods, revealing a nontrivial stability boundary. In addition to the CLSs, various species of extended states and exponentially localized lattice solitons of symmetric and asymmetric types are also studied, by means of numerical calculations and variational approximation. As a result, existence and stability areas are identified for these modes. Finally, the linear version of the double diamond chain is solved in an exact form, producing two split flatbands in the system's spectrum. PMID- 29347200 TI - Apparent slip of shear thinning fluid in a microchannel with a superhydrophobic wall. AB - The peculiarities of simple shear flow of shear thinning fluids over a superhydrophobic wall consisting of a set of parallel gas-filled grooves and solid stripes (domains with slip and stick boundary conditions) are studied numerically. The Carreau-Yasuda model is used to provide further insight into the problem of the slip behavior of non-Newtonian fluids having a decreasing viscosity with a shear rate increase. This feature is demonstrated to cause a nonlinear velocity profile leading to the apparent slip. The corresponding transverse and longitudinal apparent slip lengths of a striped texture are found to be noticeably larger than the respective effective slip lengths of Newtonian liquids in microchannels of various thicknesses and surface fractions of the slip domains. The viscosity distribution of the shear thinning fluid over the superhydrophobic wall is carefully investigated to describe the mechanism of the apparent slip. Nonmonotonic behavior of the apparent slip length as a function of the applied shear rate is revealed. This important property of shear thinning fluids is considered to be sensitive to the steepness of the viscosity flow curve, thus providing a way to decrease considerably the flow resistance in microchannels. PMID- 29347201 TI - Stiffening thermal membranes by cutting. AB - Two-dimensional crystalline membranes have recently been realized experimentally in systems such as graphene and molybdenum disulfide, sparking a resurgence in interest in their statistical properties. Thermal fluctuations can significantly affect the effective mechanical properties of properly thermalized membranes, renormalizing both bending rigidity and elastic moduli so that in particular they become stiffer to bending than their bare bending rigidity would suggest. We use molecular dynamics simulations to examine how the mechanical behavior of thermalized two-dimensional clamped ribbons (cantilevers) depends on their precise topology and geometry. We find that a simple slit smooths roughness as measured by the variance of height fluctuations. This counterintuitive effect may be due to the counterposed coupling of the lips of the slit to twist in the intact regions of the ribbon. PMID- 29347202 TI - Graphene as transmissive electrodes and aligning layers for liquid-crystal-based electro-optic devices. AB - In a conventional liquid crystal (LC) cell, polyimide layers are used to align the LC homogeneously in the cell, and transmissive indium tin oxide (ITO) electrodes are used to apply the electric field to reorient the LC along the field. It is experimentally presented here that monolayer graphene films on the two glass substrates can function concurrently as the LC aligning layers and the transparent electrodes to fabricate an LC cell, without using the conventional polyimide and ITO substrates. This replacement can effectively decrease the thickness of all the alignment layers and electrodes from about 100 nm to less than 1 nm. The interaction between LC and graphene through pi-pi electron stacking imposes a planar alignment on the LC in the graphene-based cell-which is verified using a crossed polarized microscope. The graphene-based LC cell exhibits an excellent nematic director reorientation process from planar to homeotropic configuration through the application of an electric field-which is probed by dielectric and electro-optic measurements. Finally, it is shown that the electro-optic switching is significantly faster in the graphene-based LC cell than in a conventional ITO-polyimide LC cell. PMID- 29347203 TI - Dynamical properties of the herding voter model with and without noise. AB - Collective leadership and herding may arise in standard models of opinion dynamics as an interplay of a strong separation of time scales within the population and its hierarchical organization. Using the voter model as a simple opinion formation model, we show that, in the herding phase, a group of agents become effectively the leaders of the dynamics while the rest of the population follow blindly their opinion. Interestingly, in some cases such herding dynamics accelerates the time to consensus, which then becomes size independent or, on the contrary, makes the consensus nearly impossible. These behaviors have important consequences when an external noise is added to the system that makes consensus (absorbing) states to disappear. We analyze this model, which shows an interesting phase diagram, with a purely diffusive phase, a herding (or two states) phase, and mixed phases where both behaviors are possible. PMID- 29347204 TI - Magnetic-field-driven alteration in capillary filling dynamics in a narrow fluidic channel. AB - We investigated pressure-driven transport of an immiscible binary system, constituted by two electrically conducting liquids, in a narrow fluidic channel under the influence of an externally applied magnetic field. The surface wettability was taken into account in the analysis considering that the walls of the channel are chemically treated to obtain various predefined contact angles as required for the study. Alterations in the capillary filling and wetting dynamics in the channel stemming from a complex interplay among different forces acting over the interface were investigated. It was shown that an alteration in the strength of the magnetic field leads to an alteration in the dynamics of the interface, which in turn, alters the filling and wetting dynamics nontrivially upon interaction with the surface tension force due to the wetted walls of the channel. It is emphasized that a contrast in properties of constituents of the binary system gives rise to an alteration in the forces being applied across the interface, leading to an intricate control over the filling and wetting dynamics for a given flow configuration and an applied field strength. We believe that the results obtained from this analysis may aid the design of microfluidic devices used for multiphase transport. PMID- 29347205 TI - Inferring network structure from cascades. AB - Many physical, biological, and social phenomena can be described by cascades taking place on a network. Often, the activity can be empirically observed, but not the underlying network of interactions. In this paper we offer three topological methods to infer the structure of any directed network given a set of cascade arrival times. Our formulas hold for a very general class of models where the activation probability of a node is a generic function of its degree and the number of its active neighbors. We report high success rates for synthetic and real networks, for several different cascade models. PMID- 29347206 TI - Detection of time delays and directional interactions based on time series from complex dynamical systems. AB - Data-based and model-free accurate identification of intrinsic time delays and directional interactions is an extremely challenging problem in complex dynamical systems and their networks reconstruction. A model-free method with new scores is proposed to be generally capable of detecting single, multiple, and distributed time delays. The method is applicable not only to mutually interacting dynamical variables but also to self-interacting variables in a time-delayed feedback loop. Validation of the method is carried out using physical, biological, and ecological models and real data sets. Especially, applying the method to air pollution data and hospital admission records of cardiovascular diseases in Hong Kong reveals the major air pollutants as a cause of the diseases and, more importantly, it uncovers a hidden time delay (about 30-40 days) in the causal influence that previous studies failed to detect. The proposed method is expected to be universally applicable to ascertaining and quantifying subtle interactions (e.g., causation) in complex systems arising from a broad range of disciplines. PMID- 29347207 TI - Role of anchoring energy on the texture of cholesteric droplets: Finite-element simulations and experiments. AB - We present a numerical method to compute defect-free textures inside cholesteric domains of arbitrary shape. This method has two interesting properties, namely a robust and fast quadratic convergence to a local minimum of the Frank free energy, thanks to a trust region strategy. We apply this algorithm to study the texture of cholesteric droplets in coexistence with their isotropic liquid in two cases: when the anchoring is planar and when it is tilted. In the first case, we show how to determine the anchoring energy at the cholesteric-isotropic interface from a study of the optical properties of droplets of different sizes oriented with an electric field. This method is applied to the case of the liquid crystal CCN-37. In the second case, we come back to the issue of the textural transition as a function of the droplet radius between the double-twist droplets and the banded droplets, observed for instance in cyanobiphenyl liquid crystals. We show that, even if this transition is dominated by the saddle-splay Gauss constant K_{4}, as was recently recognized by Yoshioka et al. [Soft Matter 12, 2400 (2016)1744-683X10.1039/C5SM02838H], the anchoring energy does also play an important role that cannot be neglected. PMID- 29347208 TI - Colloid-colloid hydrodynamic interaction around a bend in a quasi-one-dimensional channel. AB - We report a study of how a bend in a quasi-one-dimensional (q1D) channel containing a colloid suspension at equilibrium that exhibits single-file particle motion affects the hydrodynamic coupling between colloid particles. We observe both structural and dynamical responses as the bend angle becomes more acute. The structural response is an increasing depletion of particles in the vicinity of the bend and an increase in the nearest-neighbor separation in the pair correlation function for particles on opposite sides of the bend. The dynamical response monitored by the change in the self-diffusion [D_{11}(x)] and coupling [D_{12}(x)] terms of the pair diffusion tensor reveals that the pair separation dependence of D_{12} mimics that of the pair correlation function just as in a straight q1D channel. We show that the observed behavior is a consequence of the boundary conditions imposed on the q1D channel: both the single-file motion and the hydrodynamic flow must follow the channel around the bend. PMID- 29347209 TI - Takeover times for a simple model of network infection. AB - We study a stochastic model of infection spreading on a network. At each time step a node is chosen at random, along with one of its neighbors. If the node is infected and the neighbor is susceptible, the neighbor becomes infected. How many time steps T does it take to completely infect a network of N nodes, starting from a single infected node? An analogy to the classic "coupon collector" problem of probability theory reveals that the takeover time T is dominated by extremal behavior, either when there are only a few infected nodes near the start of the process or a few susceptible nodes near the end. We show that for N?1, the takeover time T is distributed as a Gumbel distribution for the star graph, as the convolution of two Gumbel distributions for a complete graph and an Erdos Renyi random graph, as a normal for a one-dimensional ring and a two-dimensional lattice, and as a family of intermediate skewed distributions for d-dimensional lattices with d>=3 (these distributions approach the convolution of two Gumbel distributions as d approaches infinity). Connections to evolutionary dynamics, cancer, incubation periods of infectious diseases, first-passage percolation, and other spreading phenomena in biology and physics are discussed. PMID- 29347210 TI - Eigenvector centrality for geometric and topological characterization of porous media. AB - Solving flow and transport through complex geometries such as porous media is computationally difficult. Such calculations usually involve the solution of a system of discretized differential equations, which could lead to extreme computational cost depending on the size of the domain and the accuracy of the model. Geometric simplifications like pore networks, where the pores are represented by nodes and the pore throats by edges connecting pores, have been proposed. These models, despite their ability to preserve the connectivity of the medium, have difficulties capturing preferential paths (high velocity) and stagnation zones (low velocity), as they do not consider the specific relations between nodes. Nonetheless, network theory approaches, where a complex network is a graph, can help to simplify and better understand fluid dynamics and transport in porous media. Here we present an alternative method to address these issues based on eigenvector centrality, which has been corrected to overcome the centralization problem and modified to introduce a bias in the centrality distribution along a particular direction to address the flow and transport anisotropy in porous media. We compare the model predictions with millifluidic transport experiments, which shows that, albeit simple, this technique is computationally efficient and has potential for predicting preferential paths and stagnation zones for flow and transport in porous media. We propose to use the eigenvector centrality probability distribution to compute the entropy as an indicator of the "mixing capacity" of the system. PMID- 29347211 TI - Dependence of the configurational entropy on amorphous structures of a hard sphere fluid. AB - The free energy of a hard-sphere fluid for which the average energy is trivial signifies how its entropy changes with packing. The packing eta_{f} at which the free energy of the crystalline state becomes lower than that of the disordered fluid state marks the freezing point. For packing fractions eta>eta_{f} of the hard-sphere fluid, we use the modified weighted density functional approximation to identify metastable free energy minima intermediate between uniform fluid and crystalline states. The distribution of the sharply localized density profiles, i.e., the inhomogeneous density field rho(x) characterizing the metastable state is primarily described by a pair function g_{s}(eta/eta_{0}). eta_{0} is a structural parameter such that for eta=eta_{0} the pair function is identical to that for the Bernal random structure. The configurational entropy S_{c} of the metastable hard-sphere fluid is calculated by subtracting the corresponding vibrational entropy from the total entropy. The extrapolated S_{c} vanishes as eta->eta_{K} and eta_{K} is in agreement with other works. The dependence of eta_{K} on the structural parameter eta_{0} is obtained. PMID- 29347212 TI - Theory of microphase separation in bidisperse chiral membranes. AB - We present a Ginzburg-Landau theory of microphase separation in a bidisperse chiral membrane consisting of rods of opposite handedness. This model system undergoes a phase transition from an equilibrium state where the two components are completely phase separated to a state composed of microdomains of a finite size comparable to the twist penetration depth. Characterizing the phenomenology using linear stability analysis and numerical studies, we trace the origin of the discontinuous change in microdomain size that occurs during this phase transition to a competition between the cost of creating an interface and the gain in twist energy for small microdomains in which the twist penetrates deep into the center of the domain. PMID- 29347213 TI - Nonlinear dispersive waves in repulsive lattices. AB - The propagation of nonlinear waves in a lattice of repelling particles is studied theoretically and experimentally. A simple experimental setup is proposed, consisting of an array of coupled magnetic dipoles. By driving harmonically the lattice at one boundary, we excite propagating waves and demonstrate different regimes of mode conversion into higher harmonics, strongly influenced by dispersion and discreteness. The phenomenon of acoustic dilatation of the chain is also predicted and discussed. The results are compared with the theoretical predictions of the alpha-Fermi-Pasta-Ulam equation, describing a chain of masses connected by nonlinear quadratic springs and numerical simulations. The results can be extrapolated to other systems described by this equation. PMID- 29347214 TI - Quantum Hamiltonian daemons: Unitary analogs of combustion engines. AB - Hamiltonian daemons have recently been defined classically as small, closed Hamiltonian systems which can exhibit secular energy transfer from high-frequency to low-frequency degrees of freedom (steady downconversion), analogous to the steady transfer of energy in a combustion engine from the high terahertz frequencies of molecular excitations to the low kilohertz frequencies of piston motion [L. Gilz, E. P. Thesing, and J. R. Anglin, Phys. Rev. E 94, 042127 (2016)2470-004510.1103/PhysRevE.94.042127]. Classical daemons achieve downconversion within a small, closed system by exploiting nonlinear resonances; the adiabatic theorem permits their operation but imposes nontrivial limitations on their efficiency. Here we investigate a simple example of a quantum mechanical daemon. In the correspondence regime it obeys similar efficiency limits to its classical counterparts, but in the strongly quantum mechanical regime the daemon operates in an entirely different manner. It maintains an engine-like behavior in a distinctly quantum mechanical form: a weight is lifted at a steady average speed through a long sequence of quantum jumps in momentum, at each of which a quantum of fuel is consumed. The quantum daemon can cease downconversion at any time through nonadiabatic Landau-Zener transitions, and continuing operation of the quantum daemon is associated with steadily growing entanglement between fast and slow degrees of freedom. PMID- 29347215 TI - Optomechanical proposal for monitoring microtubule mechanical vibrations. AB - Microtubules provide the mechanical force required for chromosome separation during mitosis. However, little is known about the dynamic (high-frequency) mechanical properties of microtubules. Here, we theoretically propose to control the vibrations of a doubly clamped microtubule by tip electrodes and to detect its motion via the optomechanical coupling between the vibrational modes of the microtubule and an optical cavity. In the presence of a red-detuned strong pump laser, this coupling leads to optomechanical-induced transparency of an optical probe field, which can be detected with state-of-the art technology. The center frequency and line width of the transparency peak give the resonance frequency and damping rate of the microtubule, respectively, while the height of the peak reveals information about the microtubule-cavity field coupling. Our method opens the new possibilities to gain information about the physical properties of microtubules, which will enhance our capability to design physical cancer treatment protocols as alternatives to chemotherapeutic drugs. PMID- 29347216 TI - Ordering phenomena in a heterostructure of frustrated and unfrustrated triangular lattice Ising layers. AB - We study critical and magnetic properties of a bilayer Ising system consisting of two triangular planes A and B, with the antiferromagnetic (AF) coupling J_{A} and the ferromagnetic (FM) one J_{B} for the respective layers, which are coupled by the interlayer interaction J_{AB} by using Monte Carlo simulations. When J_{A} and J_{B} are of the same order, the unfrustrated FM plane orders first at a high temperature T_{c1}~J_{B}. The spontaneous FM order then exerts influence on the other frustrated AF plane as an effective magnetic field, which subsequently induces a ferrimagnetic order in this plane at low temperatures below T_{c2}. When short-range order is developed in the AF plane while the influence of the FM plane is still small, there appears a preemptive Berezinskii-Kosterlitz-Thouless type pseudocritical crossover regime just above the ferrimagnetic phase transition point, where the short-distance behavior up to a rather large length scale exponentially diverging in ?J_{A}/T is controlled by a line of Gaussian fixed points at T=0. In the crossover region, a continuous variation in the effective critical exponent 4/9?eta^{eff}?1/2 is observed. The phase diagram by changing the ratio J_{A}/J_{B} is also investigated. PMID- 29347217 TI - Aging in the three-dimensional random-field Ising model. AB - We studied the nonequilibrium aging behavior of the random-field Ising model in three dimensions for various values of the disorder strength. This allowed us to investigate how the aging behavior changes across the ferromagnetic-paramagnetic phase transition. We investigated a large system size of N=256^{3} spins and up to 10^{8} Monte Carlo sweeps. To reach these necessary long simulation times, we employed an implementation running on Intel Xeon Phi coprocessors, reaching single-spin-flip times as short as 6 ps. We measured typical correlation functions in space and time to extract a growing length scale and corresponding exponents. PMID- 29347218 TI - Effect of particle-size dynamics on properties of dense spongy-particle systems: Approach towards equilibrium. AB - Open-porous deformable particles, often envisaged as sponges, are ubiquitous in biological and industrial systems (e.g., casein micelles in dairy products and microgels in cosmetics). The rich behavior of these suspensions is owing to the elasticity of the supporting network of the particle, and the viscosity of permeating solvent. Therefore, the rate-dependent size change of these particles depends on their structure, i.e., the permeability. This work aims at investigating the effect of the particle-size dynamics and the underlying particle structure, i.e., the particle permeability, on the transient and long time behavior of suspensions of spongy particles in the absence of applied deformation, using the dynamic two-scale model developed by Hutter et al. [Farad. Discuss. 158, 407 (2012)1359-664010.1039/c2fd20025b]. In the high-density limit, the transient behavior is found to be accelerated by the particle-size dynamics, even at average size changes as small as 1%. The accelerated dynamics is evidenced by (i) the higher short-time diffusion coefficient as compared to elastic-particle systems and (ii) the accelerated formation of the stable fcc crystal structure. Furthermore, after long times, the particle-size dynamics of spongy particles is shown to result in lower stationary values of the energy and normal stresses as compared to elastic-particle systems. This dependence of the long-time behavior of these systems on the permeability, that essentially is a transport coefficient and hence must not affect the equilibrium properties, confirms that full equilibration has not been reached. PMID- 29347219 TI - Transport and diffusion properties of Brownian particles powered by a rotating wheel. AB - Diffusion and rectification of Brownian particles powered by a rotating wheel are numerically investigated in a two-dimensional channel. The nonequilibrium driving comes from the rotating wheel, which can break thermodynamical equilibrium and induce the directed transport in an asymmetric potential. It is found that the direction of the transport along the potential is determined by the asymmetry of the potential and the position of the wheel. The average velocity is a peaked function of the angular speed (or the diffusion coefficient) and the position of the peak shifts to large angular speed (or diffusion coefficient) when the diffusion coefficient (or the angular speed) increases. There exists an optimal angular speed (or diffusion coefficient) at which the effective diffusion coefficient takes its maximal value. Remarkably, the giant acceleration of diffusion is observed by suitably adjusting the system parameters. The parameters corresponding to the maximum effective diffusion coefficient are not the same as the parameters at which average velocity is maximum. PMID- 29347220 TI - Geometrical properties of rigid frictionless granular packings as a function of particle size and shape. AB - Three-dimensional discrete numerical simulation is used to investigate the properties of close-packed frictionless granular assemblies as a function of particle polydispersity and shape. Unlike some experimental results, simulations show that disordered packings of pinacoids (eight-face convex polyhedra) achieve higher solid fraction values than amorphous packings of spherical or rounded particles, thus fulfilling the analog of Ulam's conjecture stated by Jiao and co workers for random packings [Y. Jiao and S. Torquato, Phys. Rev. E 84, 041309 (2011)PLEEE81539-375510.1103/PhysRevE.84.041309]. This seeming discrepancy between experimental and numerical results is believed to result from difficulties in overcoming inter particle friction through experimental densification processes. Moreover, solid fraction is shown to increase further with bidispersity and peak when the volume proportion of small particles reaches 30%. Contrarily, substituting up to 50% of flat pinacoids for isometric ones yields solid fraction decrease, especially when flat particles are also elongated. Nevertheless, particle shape seems to play a minor role in packing solid fraction compared to polydispersity. Additional investigations focused on the packing microstructure confirm that pinacoid packings fulfill the isostatic conjecture and that they are free of order except beyond 30% to 50% of flat or flat-elongated polyhedra in the packing. This order increase progressively takes the form of a nematic phase caused by the reorientation of flat or flat-elongated particles to minimize the packing potential energy. Simultaneously, this reorientation seems to increase the solid fraction value slightly above the maximum achieved by monodisperse isometric pinacoids, as well as the coordination number. Finally, partial substitution of elongated pinacoids for isometric ones has limited effect on packing solid fraction or order. PMID- 29347221 TI - Production rate of the system-bath mutual information. AB - When an open system comes into contact with several thermal baths, the entropy produced by the irreversible processes (dS_{i}=dS-?_{alpha} dQ_{alpha}/T_{alpha}) keeps increasing, and this entropy production rate is always non-negative. However, when the system comes into contact with nonthermal baths containing quantum coherence or squeezing, this entropy production formula does not apply. In this paper, we study the increasing rate of mutual information between an open system and its environment. In the case of canonical thermal baths, we prove that this mutual information production rate could return exactly to the previous entropy production rate. Furthermore, we study an example of a single boson mode that comes into contact with multiple squeezed thermal baths, where the conventional entropy production rate does not apply, and we find that this mutual information production rate remains non-negative, which indicates a monotonic increase in the correlation between the system and its environment. PMID- 29347222 TI - Extremal-point density of scaling processes: From fractional Brownian motion to turbulence in one dimension. AB - In recent years several local extrema-based methodologies have been proposed to investigate either the nonlinear or the nonstationary time series for scaling analysis. In the present work, we study systematically the distribution of the local extrema for both synthesized scaling processes and turbulent velocity data from experiments. The results show that for the fractional Brownian motion (fBm) without intermittency correction the measured extremal-point-density (EPD) agrees well with a theoretical prediction. For a multifractal random walk (MRW) with the lognormal statistics, the measured EPD is independent of the intermittency parameter MU, suggesting that the intermittency correction does not change the distribution of extremal points but changes the amplitude. By introducing a coarse-grained operator, the power-law behavior of these scaling processes is then revealed via the measured EPD for different scales. For fBm the scaling exponent xi(H) is found to be xi(H)=H, where H is Hurst number, while for MRW xi(MU) shows a linear relation with the intermittency parameter MU. Such EPD approach is further applied to the turbulent velocity data obtained from a wind tunnel flow experiment with the Taylor scale lambda-based Reynolds number Re_{lambda}=720, and a turbulent boundary layer with the momentum thickness theta based Reynolds number Re_{theta}=810. A scaling exponent xi?0.37 is retrieved for the former case. For the latter one, the measured EPD shows clearly four regimes, which agrees well with the corresponding sublayer structures inside the turbulent boundary layer. PMID- 29347223 TI - Metal nanospheres under intense continuous-wave illumination: A unique case of nonperturbative nonlinear nanophotonics. AB - We show that the standard perturbative (i.e., cubic) description of the thermal nonlinear response of a single metal nanosphere to intense continuous-wave (CW) illumination is sufficient only for a temperature rise of up to 100 degrees above room temperature. Beyond this regime, the slowing down of the temperature rise requires a nonperturbative description of the nonlinear response, even though the permittivity is linearly dependent on the temperature and despite the deep subwavelength effective propagation distances involved. Using experimental data, we show that, generically, the increase of the imaginary part of the metal permittivity dominates the increase of the host permittivity as well as the resonance shift due to the joint changes to the real parts of the metal and host. Thus, the main nonlinear effect is a decrease of the quality factor of the resonance. We further analyze the relative importance of the various contributions to the temperature rise and thermal nonlinearity, compare the nonlinearity of Au and Ag, demonstrate the potential effect of the nanoparticle morphology, and show that although the thermo-optical nonlinearity of the host typically plays a minor role, its thermal conductivity and its temperature dependence is important. Finally, we discuss the differences between CW and ultrafast thermal nonlinearities. PMID- 29347224 TI - Spreading law of non-Newtonian power-law liquids on a spherical substrate by an energy-balance approach. AB - The spreading of a cap-shaped spherical droplet of non-Newtonian power-law liquids, both shear-thickening and shear-thinning liquids, that completely wet a spherical substrate is theoretically investigated in the capillary-controlled spreading regime. The crater-shaped droplet model with the wedge-shaped meniscus near the three-phase contact line is used to calculate the viscous dissipation near the contact line. Then the energy balance approach is adopted to derive the equation that governs the evolution of the contact line. The time evolution of the dynamic contact angle theta of a droplet obeys a power law theta~t^{-alpha} with the spreading exponent alpha, which is different from Tanner's law for Newtonian liquids and those for non-Newtonian liquids on a flat substrate. Furthermore, the line-tension dominated spreading, which could be realized on a spherical substrate for late-stage of spreading when the contact angle becomes low and the curvature of the contact line becomes large, is also investigated. PMID- 29347225 TI - First-principles equation of state and shock compression predictions of warm dense hydrocarbons. AB - We use path integral Monte Carlo and density functional molecular dynamics to construct a coherent set of equations of state (EOS) for a series of hydrocarbon materials with various C:H ratios (2:1, 1:1, 2:3, 1:2, and 1:4) over the range of 0.07-22.4gcm^{-3} and 6.7*10^{3}-1.29*10^{8}K. The shock Hugoniot curve derived for each material displays a single compression maximum corresponding to K-shell ionization. For C:H = 1:1, the compression maximum occurs at 4.7-fold of the initial density and we show radiation effects significantly increase the shock compression ratio above 2 Gbar, surpassing relativistic effects. The single peaked structure of the Hugoniot curves contrasts with previous work on higher-Z plasmas, which exhibit a two-peak structure corresponding to both K- and L-shell ionization. Analysis of the electronic density of states reveals that the change in Hugoniot structure is due to merging of the L-shell eigenstates in carbon, while they remain distinct for higher-Z elements. Finally, we show that the isobaric-isothermal linear mixing rule for carbon and hydrogen EOS is a reasonable approximation with errors better than 1% for stellar-core conditions. PMID- 29347226 TI - Diffusion in time-dependent random media and the Kardar-Parisi-Zhang equation. AB - Although time-dependent random media with short-range correlations lead to (possibly biased) normal tracer diffusion, anomalous fluctuations occur away from the most probable direction. This was pointed out recently in one-dimensional (1D) lattice random walks, where statistics related to the 1D Kardar-Parisi-Zhang (KPZ) universality class, i.e., the Gaussian unitary ensemble Tracy-Widom distribution, were shown to arise. Here, we provide a simple picture for this correspondence, directly in the continuum, which allows one to study arbitrary space dimensions and to predict a variety of universal distributions. In d=1, we predict and verify numerically the emergence of the Gaussian orthogonal ensemble Tracy-Widom distribution for fluctuations of the transition probability. In d=3, we predict a phase transition from Gaussian fluctuations to three-dimensional KPZ type fluctuations as the bias is increased. We predict KPZ universal distributions for the arrival time of a first particle from a cloud diffusing in such media. PMID- 29347227 TI - Thomas-Fermi simulations of dense plasmas without pseudopotentials. AB - The Thomas-Fermi model for warm and hot dense matter is widely used to predict material properties such as the equation of state. However, for practical reasons current implementations use pseudopotentials for the electron-nucleus interaction instead of the bare Coulomb potential. This complicates the calculation and quantities such as free energy cannot be converged with respect to the pseudopotential parameters. We present a method that retains the bare Coulomb potential for the electron-nucleus interaction and does not use pseudopotentials. We demonstrate that accurate free energies are obtained by checking variational consistency. Examples for aluminum and iron plasmas are presented. PMID- 29347228 TI - Dynamics of spinning particle pairs in a single-layer complex plasma crystal. AB - Spontaneous formation of spinning pairs of particles, or torsions, is studied in a single-layer complex plasma crystal by reducing the discharge power at constant neutral gas pressure. At higher gas pressures, torsions spontaneously form below a certain power threshold. Further reduction of the discharge power leads to the formation of multiple torsions. However, at lower gas pressures the torsion formation is preceded by mode-coupling instability (MCI). The crystal dynamics are studied with the help of the fluctuation spectra of crystal particles' in plane velocities. Surprisingly, the spectra of the crystal with torsions and MCI are rather similar and contain hot spots at similar locations on the (k,omega) plane, despite very different appearances of the respective particle trajectories. The torsion rotation speed is close (slightly below) to the maximum frequency of the in-plane compressional mode. When multiple torsions form, their rotation speeds are distributed in a narrow range slightly below the maximum frequency. PMID- 29347229 TI - Phase diagram and criticality of the two-dimensional prisoner's dilemma model. AB - The stationary states of the prisoner's dilemma model are studied on a square lattice taking into account the role of a noise parameter in the decision-making process. Only first neighboring players-defectors and cooperators-are considered in each step of the game. Through Monte Carlo simulations we determined the phase diagrams of the model in the plane noise versus the temptation to defect for a large range of values of the noise parameter. We observed three phases: cooperators and defectors absorbing phases, and a coexistence phase between them. The phase transitions as well as the critical exponents associated with them were determined using both static and dynamical scaling laws. PMID- 29347230 TI - Detecting unstable periodic orbits in chaotic time series using synchronization. AB - An alternative approach of detecting unstable periodic orbits in chaotic time series is proposed using synchronization techniques. A master-slave synchronization scheme is developed, in which the chaotic system drives a system of harmonic oscillators through a proper coupling condition. The proposed scheme is designed so that the power of the coupling signal exhibits notches that drop to zero once the system approaches an unstable orbit yielding an explicit indication of the presence of a periodic motion. The results shows that the proposed approach is particularly suitable in practical situations, where the time series is short and noisy, or it is obtained from high-dimensional chaotic systems. PMID- 29347231 TI - Reconstructing networks of pulse-coupled oscillators from spike trains. AB - We present an approach for reconstructing networks of pulse-coupled neuronlike oscillators from passive observation of pulse trains of all nodes. It is assumed that units are described by their phase response curves and that their phases are instantaneously reset by incoming pulses. Using an iterative procedure, we recover the properties of all nodes, namely their phase response curves and natural frequencies, as well as strengths of all directed connections. PMID- 29347232 TI - Continuous-time random walk under time-dependent resetting. AB - Continuous-time random walks of a particle that is randomly reset to an initial position are considered. The distribution of the waiting time between the reset events is represented as a sum of an arbitrary number of exponentials. The governing equation of this stochastic process is established. The mean first passage time to a particular position is calculated. It is shown that anomalous subdiffusion has a significant impact on the shape of the stationary state. PMID- 29347233 TI - Dynamics and energy spectra of aperiodic discrete-time quantum walks. AB - We investigate the role of different aperiodic sequences in the dynamics of single quantum particles in discrete space and time. For this we consider three aperiodic sequences, namely, the Fibonacci, Thue-Morse, and Rudin-Shapiro sequences, as examples of tilings the diffraction spectra of which have pure point, singular continuous, and absolutely continuous support, respectively. Our interest is to understand how the order, intrinsically introduced by the deterministic rule used to generate the aperiodic sequences, is reflected in the dynamical properties of the quantum system. For this system we consider a single particle undergoing a discrete-time quantum walk (DTQW), where the aperiodic sequences are used to distribute the coin operations at different lattice positions (inhomogeneous DTQW) or by applying the same coin operation at all lattice sites at a given time but choosing different coin operation at each time step according to the chosen aperiodic sequence (time dependent DTQW). We study the energy spectra and the spreading of an initially localized wave packet for different cases, finding that in the case of Fibonacci and Thue-Morse tilings the system is superdiffusive, whereas in the Rudin-Shapiro case it is strongly subdiffusive. Trying to understand this behavior in terms of the energy spectra, we look at the survival amplitude as a function of time. By means of the echo we present strong evidence that, although the three orderings are very different as evidenced by their diffraction spectra, the energy spectra are all singular continuous except for the inhomogeneous DTQW with the Rudin-Shapiro sequence where it is discrete. This is in agreement with the observed strong localization both in real space and in the Hilbert space. Our paper is particularly interesting because quantum walks can be engineered in laboratories by means of ultracold gases or in optical waveguides, and therefore would be a perfect playground to study singular continuous energy spectra in a completely controlled quantum setup. PMID- 29347234 TI - Pace and patterns of magnetic swimmers in a billiard pool. AB - We experimentally investigate magnetic surface swimmers on water. These objects self-assemble from ferromagnetic microparticles and a nonmagnetic disk. They are floating on the liquid surface due to interface tension and move under the influence of a harmonically oscillating homogeneous magnetic field oriented vertically, which is distinguished by its amplitude and frequency. The speed of the surface swimmers strongly depends on these parameters. The functional dependencies between speed and amplitude and between speed and frequency are investigated by independently varying both control parameters. In the first case, the data obtained are in good agreement with the predicted scaling while there are some deviations in the latter case. Moreover, due to the interplay between the surface bound swimmers and the ascending liquid meniscus at the edge of the experimental vessel, different dynamics can be realized. We observe periodic and quasiperiodic trajectories in a circular vessel and aperiodic trajectories in a vessel shaped like a Bunimovich stadium. PMID- 29347235 TI - Ballistic aggregation in systems of inelastic particles: Cluster growth, structure, and aging. AB - We study far-from-equilibrium dynamics in models of freely cooling granular gas and ballistically aggregating compact clusters. For both the cases, from event driven molecular dynamics simulations, we have presented detailed results on structure and dynamics in space dimensions d=1 and 2. Via appropriate analyses it has been confirmed that the ballistic aggregation mechanism applies in d=1 granular gases as well. Aging phenomena for this mechanism, in both the dimensions, have been studied via the two-time density autocorrelation function. This quantity is demonstrated to exhibit scaling property similar to that in the standard phase transition kinetics. The corresponding functional forms have been quantified and the outcomes have been discussed in connection with the structural properties. Our results on aging establish a more complete equivalence between the granular gas and the ballistic aggregation models in d=1. PMID- 29347236 TI - Importance-sampling computation of statistical properties of coupled oscillators. AB - We introduce and implement an importance-sampling Monte Carlo algorithm to study systems of globally coupled oscillators. Our computational method efficiently obtains estimates of the tails of the distribution of various measures of dynamical trajectories corresponding to states occurring with (exponentially) small probabilities. We demonstrate the general validity of our results by applying the method to two contrasting cases: the driven-dissipative Kuramoto model, a paradigm in the study of spontaneous synchronization; and the conservative Hamiltonian mean-field model, a prototypical system of long-range interactions. We present results for the distribution of the finite-time Lyapunov exponent and a time-averaged order parameter. Among other features, our results show most notably that the distributions exhibit a vanishing standard deviation but a skewness that is increasing in magnitude with the number of oscillators, implying that nontrivial asymmetries and states yielding rare or atypical values of the observables persist even for a large number of oscillators. PMID- 29347237 TI - Linear and nonlinear response of the Vlasov system with nonintegrable Hamiltonian. AB - Linear and nonlinear response formulas taking into account all Casimir invariants are derived without use of angle-action variables of a single-particle (mean field) Hamiltonian. This article deals mainly with the Vlasov system in a spatially inhomogeneous quasistationary state whose associating single-particle Hamiltonian is not integrable and has only one integral of the motion, the Hamiltonian itself. The basic strategy is to restrict the form of perturbation so that it keeps Casimir invariants within a linear order, and the single particle's probabilistic density function is smooth with respect to the single particle's Hamiltonian. The theory is applied for a spatially two-dimensional system and is confirmed by numerical simulations. A nonlinear response formula is also derived in a similar manner. PMID- 29347238 TI - Cascade replication of dissipative solitons. AB - We report a new effect of a cascade replication of dissipative solitons from a single one. It is discussed in the framework of a common model based on the one dimensional cubic-quintic complex Ginzburg-Landau equation in which an additional linear term is introduced to account the perturbation from a particular potential of externally applied force. The effect is demonstrated on the light beams propagating through a planar waveguide. The waveguide consists of a nonlinear layer able to guide dissipative solitons and a magneto-optic substrate. In the waveguide an externally applied force is considered to be an inhomogeneous magnetic field which is induced by modulated electric currents flowing along a set of conducting wires adjusted on the top of the waveguide. PMID- 29347239 TI - Stochastic and information-thermodynamic structures of population dynamics in a fluctuating environment. AB - Adaptation in a fluctuating environment is a process of fueling environmental information to gain fitness. Living systems have gradually developed strategies for adaptation from random and passive diversification of the phenotype to more proactive decision making, in which environmental information is sensed and exploited more actively and effectively. Understanding the fundamental relation between fitness and information is therefore crucial to clarify the limits and universal properties of adaptation. In this work, we elucidate the underlying stochastic and information-thermodynamic structure in this process, by deriving causal fluctuation relations (FRs) of fitness and information. Combined with a duality between phenotypic and environmental dynamics, the FRs reveal the limit of fitness gain, the relation of time reversibility with the achievability of the limit, and the possibility and condition for gaining excess fitness due to environmental fluctuation. The loss of fitness due to causal constraints and the limited capacity of real organisms is shown to be the difference between time forward and time-backward path probabilities of phenotypic and environmental dynamics. Furthermore, the FRs generalize the concept of the evolutionary stable state (ESS) for fluctuating environment by giving the probability that the optimal strategy on average can be invaded by a suboptimal one owing to rare environmental fluctuation. These results clarify the information-thermodynamic structures in adaptation and evolution. PMID- 29347240 TI - Social contagions on weighted networks. AB - We investigate critical behaviors of a social contagion model on weighted networks. An edge-weight compartmental approach is applied to analyze the weighted social contagion on strongly heterogenous networks with skewed degree and weight distributions. We find that degree heterogeneity cannot only alter the nature of contagion transition from discontinuous to continuous but also can enhance or hamper the size of adoption, depending on the unit transmission probability. We also show that the heterogeneity of weight distribution always hinders social contagions, and does not alter the transition type. PMID- 29347241 TI - Viscoinertial regime of immersed granular flows. AB - By means of extensive coupled molecular dynamics-lattice Boltzmann simulations, accounting for grain dynamics and subparticle resolution of the fluid phase, we analyze steady inertial granular flows sheared by a viscous fluid. We show that, for a broad range of system parameters (shear rate, confining stress, fluid viscosity, and relative fluid-grain density), the frictional strength and packing fraction can be described by a modified inertial number incorporating the fluid effect. In a dual viscous description, the effective viscosity diverges as the inverse square of the difference between the packing fraction and its jamming value, as observed in experiments. We also find that the fabric and force anisotropies extracted from the contact network are well described by the modified inertial number, thus providing clear evidence for the role of these key structural parameters in dense suspensions. PMID- 29347242 TI - Multi-phase-field model for surface and phase-boundary diffusion. AB - The multi-phase-field approach is generalized to treat capillarity-driven diffusion parallel to the surfaces and phase boundaries, i.e., the boundaries between a condensed phase and its vapor and the boundaries between two or multiple condensed phases. The effect of capillarity is modeled via curvature dependence of the chemical potential whose gradient gives rise to diffusion. The model is used to study thermal grooving on the surface of a polycrystalline body. Decaying oscillations of the surface profile during thermal grooving, postulated by Hillert long ago but reported only in few studies so far, are observed and discussed. Furthermore, annealing of multi-nanoclusters on a deformable free surface is investigated using the proposed model. Results of these simulations suggest that the characteristic craterlike structure with an elevated perimeter, observed in recent experiments, is a transient nonequilibrium state during the annealing process. PMID- 29347243 TI - Analytical scalings of the linear Richtmyer-Meshkov instability when a rarefaction is reflected. AB - The Richtmyer-Meshkov instability for the case of a reflected rarefaction is studied in detail following the growth of the contact surface in the linear regime and providing explicit analytical expressions for the asymptotic velocities in different physical limits. This work is a continuation of the similar problem when a shock is reflected [Phys. Rev. E 93, 053111 (2016)1539 375510.1103/PhysRevE.93.053111]. Explicit analytical expressions for the asymptotic normal velocity of the rippled surface (deltav_{i}^{infinity}) are shown. The known analytical solution of the perturbations growing inside the rarefaction fan is coupled to the pressure perturbations between the transmitted shock front and the rarefaction trailing edge. The surface ripple growth (psi_{i}) is followed from t=0+ up to the asymptotic stage inside the linear regime. As in the shock reflected case, an asymptotic behavior of the form psi_{i}(t)?psi_{infinity}+deltav_{i}^{infinity}t is observed, where psi_{infinity} is an asymptotic ordinate to the origin. Approximate expressions for the asymptotic velocities are given for arbitrary values of the shock Mach number. The asymptotic velocity field is calculated at both sides of the contact surface. The kinetic energy content of the velocity field is explicitly calculated. It is seen that a significant part of the motion occurs inside a fluid layer very near the material surface in good qualitative agreement with recent simulations. The important physical limits of weak and strong shocks and high and low preshock density ratio are also discussed and exact Taylor expansions are given. The results of the linear theory are compared to simulations and experimental work [R. L. Holmes et al., J. Fluid Mech. 389, 55 (1999)JFLSA70022-112010.1017/S0022112099004838; C. Mariani et al., Phys. Rev. Lett. 100, 254503 (2008)PRLTAO0031-900710.1103/PhysRevLett.100.254503]. The theoretical predictions of deltav_{i}^{infinity} and psi_{infinity} show good agreement with the experimental and numerical reported values. PMID- 29347244 TI - Marginally compact fractal trees with semiflexibility. AB - We study marginally compact macromolecular trees that are created by means of two different fractal generators. In doing so, we assume Gaussian statistics for the vectors connecting nodes of the trees. Moreover, we introduce bond-bond correlations that make the trees locally semiflexible. The symmetry of the structures allows an iterative construction of full sets of eigenmodes (notwithstanding the additional interactions that are present due to semiflexibility constraints), enabling us to get physical insights about the trees' behavior and to consider larger structures. Due to the local stiffness, the self-contact density gets drastically reduced. PMID- 29347245 TI - Kinetic Ising models with various single-spin-flip dynamics on quenched and annealed random regular graphs. AB - We investigate a kinetic Ising model with several single-spin-flip dynamics (including Metropolis and heat bath) on quenched and annealed random regular graphs. As expected, on the quenched structures all proposed algorithms reproduce the same results since the conditions for the detailed balance and the Boltzmann distribution in an equilibrium are satisfied. However, on the annealed graphs the situation is far less clear-the network annealing disturbs the equilibrium moving the system away from it. Consequently, distinct dynamics lead to different steady states. We show that some algorithms are more resistant to the annealed disorder, which causes only small quantitative changes in the model behavior. On the other hand, there are dynamics for which the influence of annealing on the system is significant, and qualitative changes arise like switching the type of phase transition from a continuous to a discontinuous one. We try to identify features of the proposed dynamics which are responsible for the above phenomenon. PMID- 29347246 TI - Social contagion with degree-dependent thresholds. AB - We investigate opinion spreading by a threshold model in a situation in which the influence of people is heterogeneously distributed. We assume that there is a coupling between the influence of an individual (measured by the out-degree) and the threshold for accepting a new opinion or habit. We find that if the coupling is strongly positive, the final state of the system will be a mix of different opinions. Otherwise, it will converge to a consensus state. This phenomenon cannot simply be explained as a phase transition, but it is a combined effect of mechanisms and their relative dominance in different regions of parameter space. PMID- 29347247 TI - Multivalent ligand-receptor-mediated interaction of small filled vesicles with a cellular membrane. AB - The ligand-receptor-mediated contacts of small sub-100-nm-sized lipid vesicles (or nanoparticles) with the cellular membrane are of interest in the contexts of cell-to-cell communication, endocytosis of membrane-coated virions, and drug (RNA) delivery. In all these cases, the interior of vesicles is filled by biologically relevant content. Despite the diversity of such systems, the corresponding ligand-receptor interaction possesses universal features. One of them is that the vesicle-membrane contacts can be accompanied by the redistribution of ligands and receptors between the contact and contact-free regions. In particular, the concentrations of ligands and receptors may become appreciably higher in the contact regions and their composition may there be different compared to that in the suspended state in the solution. A statistical model presented herein describes the corresponding distribution of various ligands and receptors and allows one to calculate the related change of the free energy with variation of the vesicle-engulfment extent. The results obtained are used to clarify the necessary conditions for the vesicle-assisted pathway of drug delivery. PMID- 29347248 TI - Transition probability generating function of a transitionless quantum parametric oscillator. AB - The transitionless tracking (TT) algorithm enables the exact tracking of quantum adiabatic dynamics in an arbitrary short time by adding a counterdiabatic Hamiltonian to the original adiabatic Hamiltonian. By applying Husimi's method originally developed for a quantum parametric oscillator (QPO) to the transitionless QPO achieved using the TT algorithm, we obtain the transition probability generating function with a time-dependent parameter constituted with solutions of the corresponding classical parametric oscillator (CPO). By obtaining the explicit solutions of this CPO using the phase-amplitude method, we find that the time-dependent parameter can be reduced to the frequency ratio between the Hamiltonians without and with the counterdiabatic Hamiltonian, from which we can easily characterize the result achieved by the TT algorithm. We illustrate our theory by showing the trajectories of the CPO on the classical phase space, which elucidate the effect of the counterdiabatic Hamiltonian of the QPO. PMID- 29347249 TI - Calculating how long it takes for a diffusion process to effectively reach steady state without computing the transient solution. AB - Mathematically, it takes an infinite amount of time for the transient solution of a diffusion equation to transition from initial to steady state. Calculating a finite transition time, defined as the time required for the transient solution to transition to within a small prescribed tolerance of the steady-state solution, is much more useful in practice. In this paper, we study estimates of finite transition times that avoid explicit calculation of the transient solution by using the property that the transition to steady state defines a cumulative distribution function when time is treated as a random variable. In total, three approaches are studied: (i) mean action time, (ii) mean plus one standard deviation of action time, and (iii) an approach we derive by approximating the large time asymptotic behavior of the cumulative distribution function. Our approach leads to a simple formula for calculating the finite transition time that depends on the prescribed tolerance delta and the (k-1)th and kth moments (k>=1) of the distribution. Results comparing exact and approximate finite transition times lead to two key findings. First, although the first two approaches are useful at characterizing the time scale of the transition, they do not provide accurate estimates for diffusion processes. Second, the new approach allows one to calculate finite transition times accurate to effectively any number of significant digits using only the moments with the accuracy increasing as the index k is increased. PMID- 29347250 TI - Nonlinear continuous-wave optical propagation in nematic liquid crystals: Interplay between reorientational and thermal effects. AB - We investigate nonlinear optical propagation of continuous-wave (CW) beams in bulk nematic liquid crystals. We thoroughly analyze the competing roles of reorientational and thermal nonlinearity with reference to self focusing/defocusing and, eventually, the formation of nonlinear diffraction-free wavepackets, the so-called spatial optical solitons. To this extent we refer to dye-doped nematic liquid crystals in planar cells excited by a single CW beam in the highly nonlocal limit. To adjust the relative weight between the two nonlinear responses, we employ two distinct wavelengths, inside and outside the absorption band of the dye, respectively. Different concentrations of the dye are considered in order to enhance the thermal effect. The theoretical analysis is complemented by numerical simulations in the highly nonlocal approximation based on a semi-analytic approach. Theoretical results are finally compared to experimental results in the Nematic Liquid Crystals (NLC) 4-trans-4'-n hexylcyclohexylisothiocyanatobenzene (6CHBT) doped with Sudan Blue dye. PMID- 29347251 TI - Dynamically crowded solutions of infinitely thin Brownian needles. AB - We study the dynamics of solutions of infinitely thin needles up to densities deep in the semidilute regime by Brownian dynamics simulations. For high densities, these solutions become strongly entangled and the motion of a needle is essentially restricted to a one-dimensional sliding in a confining tube composed of neighboring needles. From the density-dependent behavior of the orientational and translational diffusion, we extract the long-time transport coefficients and the geometry of the confining tube. The sliding motion within the tube becomes visible in the non-Gaussian parameter of the translational motion as an extended plateau at intermediate times and in the intermediate scattering function as an algebraic decay. This transient dynamic arrest is also corroborated by the local exponent of the mean-square displacements perpendicular to the needle axis. Moreover, the probability distribution of the displacements perpendicular to the needle becomes strongly non-Gaussian; rather, it displays an exponential distribution for large displacements. On the other hand, based on the analysis of higher-order correlations of the orientation we find that the rotational motion becomes diffusive again for strong confinement. At coarse grained time and length scales, the spatiotemporal dynamics of the needle for the high entanglement is captured by a single freely diffusing phantom needle with long-time transport coefficients obtained from the needle in solution. The time dependent dynamics of the phantom needle is also assessed analytically in terms of spheroidal wave functions. The dynamic behavior of the needle in solution is found to be identical to needle Lorentz systems, where a tracer needle explores a quenched disordered array of other needles. PMID- 29347252 TI - de Almeida-Thouless instability in short-range Ising spin glasses. AB - We use high-temperature series expansions to study the +/-J Ising spin glass in a magnetic field in d-dimensional hypercubic lattices for d=5-8 and in the infinite range Sherrington-Kirkpatrick (SK) model. The expansions are obtained in the variable w=tanh^{2}J/T for arbitrary values of u=tanh^{2}h/T complete to order w^{10}. We find that the scaling dimension Delta associated with the ordering field h^{2} equals 2 in the SK model and for d>=6. However, in agreement with the work of Fisher and Sompolinsky [Phys. Rev. Lett. 54, 1063 (1985)PRLTAO0031 900710.1103/PhysRevLett.54.1063], there is a violation of scaling in a finite field, leading to an anomalous h-T dependence of the de Almeida-Thouless (AT) [J. Phys. A 11, 983 (1978)JPHAC50305-447010.1088/0305-4470/11/5/028] line in high dimensions, whereas scaling is restored as d->6. Within the convergence of our series analysis, we present evidence supporting an AT line in d>=6. In d=5, the exponents gamma and Delta are substantially larger than mean-field values, but we do not see clear evidence for the AT line in d=5. PMID- 29347253 TI - Consistent lattice Boltzmann modeling of low-speed isothermal flows at finite Knudsen numbers in slip-flow regime: Application to plane boundaries. AB - The first nonequilibrium effect experienced by gaseous flows in contact with solid surfaces is the slip-flow regime. While the classical hydrodynamic description holds valid in bulk, at boundaries the fluid-wall interactions must consider slip. In comparison to the standard no-slip Dirichlet condition, the case of slip formulates as a Robin-type condition for the fluid tangential velocity. This makes its numerical modeling a challenging task, particularly in complex geometries. In this work, this issue is handled with the lattice Boltzmann method (LBM), motivated by the similarities between the closure relations of the reflection-type boundary schemes equipping the LBM equation and the slip velocity condition established by slip-flow theory. Based on this analogy, we derive, as central result, the structure of the LBM boundary closure relation that is consistent with the second-order slip velocity condition, applicable to planar walls. Subsequently, three tasks are performed. First, we clarify the limitations of existing slip velocity LBM schemes, based on discrete analogs of kinetic theory fluid-wall interaction models. Second, we present improved slip velocity LBM boundary schemes, constructed directly at discrete level, by extending the multireflection framework to the slip-flow regime. Here, two classes of slip velocity LBM boundary schemes are considered: (i) linear slip schemes, which are local but retain some calibration requirements and/or operation limitations, (ii) parabolic slip schemes, which use a two-point implementation but guarantee the consistent prescription of the intended slip velocity condition, at arbitrary plane wall discretizations, further dispensing any numerical calibration procedure. Third and final, we verify the improvements of our proposed slip velocity LBM boundary schemes against existing ones. The numerical tests evaluate the ability of the slip schemes to exactly accommodate the steady Poiseuille channel flow solution, over distinct wall slippage conditions, namely, no-slip, first-order slip, and second-order slip. The modeling of channel walls is discussed at both lattice-aligned and non-mesh aligned configurations: the first case illustrates the numerical slip due to the incorrect modeling of slippage coefficients, whereas the second case adds the effect of spurious boundary layers created by the deficient accommodation of bulk solution. Finally, the slip-flow solutions predicted by LBM schemes are further evaluated for the Knudsen's paradox problem. As conclusion, this work establishes the parabolic accuracy of slip velocity schemes as the necessary condition for the consistent LBM modeling of the slip-flow regime. PMID- 29347254 TI - Fragmentation approach to the point-island model with hindered aggregation: Accessing the barrier energy. AB - We study the effect of hindered aggregation on the island formation process in a one- (1D) and two-dimensional (2D) point-island model for epitaxial growth with arbitrary critical nucleus size i. In our model, the attachment of monomers to preexisting islands is hindered by an additional attachment barrier, characterized by length l_{a}. For l_{a}=0 the islands behave as perfect sinks while for l_{a}->infinity they behave as reflecting boundaries. For intermediate values of l_{a}, the system exhibits a crossover between two different kinds of processes, diffusion-limited aggregation and attachment-limited aggregation. We calculate the growth exponents of the density of islands and monomers for the low coverage and aggregation regimes. The capture-zone (CZ) distributions are also calculated for different values of i and l_{a}. In order to obtain a good spatial description of the nucleation process, we propose a fragmentation model, which is based on an approximate description of nucleation inside of the gaps for 1D and the CZs for 2D. In both cases, the nucleation is described by using two different physically rooted probabilities, which are related with the microscopic parameters of the model (i and l_{a}). We test our analytical model with extensive numerical simulations and previously established results. The proposed model describes excellently the statistical behavior of the system for arbitrary values of l_{a} and i=1, 2, and 3. PMID- 29347255 TI - From Kardar-Parisi-Zhang scaling to explosive desynchronization in arrays of limit-cycle oscillators. AB - Phase oscillator lattices subject to noise are one of the most fundamental systems in nonequilibrium physics. We have discovered a dynamical transition which has a significant impact on the synchronization dynamics in such lattices, as it leads to an explosive increase of the phase diffusion rate by orders of magnitude. Our analysis is based on the widely applicable Kuramoto-Sakaguchi model, with local couplings between oscillators. For one-dimensional lattices, we observe the universal evolution of the phase spread that is suggested by a connection to the theory of surface growth, as described by the Kardar-Parisi Zhang (KPZ) model. Moreover, we are able to explain the dynamical transition both in one and two dimensions by connecting it to an apparent finite-time singularity in a related KPZ lattice model. Our findings have direct consequences for the frequency stability of coupled oscillator lattices. PMID- 29347256 TI - Self-assembly processes of superparamagnetic colloids in a quasi-two-dimensional system. AB - Superparamagnetic colloids gather depending on the magnitude of the magnetic field applied, forming chains and ribbons in a quasi-two-dimensional chamber. The results presented in this work are in good agreement with recent experimental multistable data for the mean length of the aggregates in thermodynamic equilibrium. PMID- 29347257 TI - Nonuniversality in the erosion of tilted landscapes. AB - The anisotropic model for landscapes erosion proposed by Pastor-Satorras and Rothman [R. Pastor-Satorras and D. H. Rothman, Phys. Rev. Lett. 80, 4349 (1998)PRLTAO0031-900710.1103/PhysRevLett.80.4349] is believed to capture the physics of erosion at intermediate length scale (?3 km), and to account for the large value of the roughness exponent alpha observed in real data at this scale. Our study of this model-conducted using the nonperturbative renormalization group concludes on the nonuniversality of this exponent because of the existence of a line of fixed points. Thus the roughness exponent depends (weakly) on the details of the soil and the erosion mechanisms. We conjecture that this feature, while preserving the generic scaling observed in real data, could explain the wide spectrum of values of alpha measured for natural landscapes. PMID- 29347258 TI - Doubly excited pulse waves on thin liquid films flowing down an inclined plane: An experimental and numerical study. AB - The interaction patterns between doubly excited pulse waves on thin liquid films flowing down an inclined plane are studied both experimentally and numerically. The effect of varying the film flow rate, interpulse interval, and substrate inclination angle on the pulse interaction patterns is examined. Our results show that different interaction patterns exist for these binary pulses, which include solitary wave behavior, partial or complete pulse coalescence, and pulse noncoalescence. A regime map of these patterns is plotted for each inclination angle examined, parametrized by the film Reynolds number and interpulse interval. Finally, the individual effect of the system parameters mentioned above on the coalescence distance of binary pulses in the "complete pulse coalescence" mode is studied; the results are compared to numerical simulations of the two-dimensional Navier-Stokes equations yielding good agreement. PMID- 29347259 TI - Electro-osmosis of nematic liquid crystals under weak anchoring and second-order surface effects. AB - Advent of nematic liquid crystal flows has attracted renewed attention in view of microfluidic transport phenomena. Among various transport processes, electro osmosis stands as one of the efficient flow actuation mechanisms through narrow confinements. In the present study, we explore the electrically actuated flow of an ordered nematic fluid with ionic inclusions, taking into account the influences from surface-induced elasticity and electrical double layer (EDL) phenomena. Toward this, we devise the coupled flow governing equations from fundamental free-energy analysis, considering the contributions from first- and second-order elastic, dielectric, flexoelectric, charged surface polarization, ionic and entropic energies. The present study focuses on the influence of surface charge and elasticity effects in the resulting linear electro-osmosis through a slit-type microchannel whose surfaces are chemically treated to display a homeotropic-type weak anchoring state. An optical periodic stripe configuration of the nematic director has been observed, especially for higher electric fields, wherein the Ericksen number for the dynamic study is restricted to the order of unity. Contrary to the isotropic electrolytes, the EDL potential in this case was found to be dependent on the external field strength. Through a systematic investigation, we brought out the fact that the wavelength of the oscillating patterns is dictated mainly by the external field, while the amplitude depends on most of the physical variables ranging from the anchoring strength and the flexoelectric coefficients to the surface charge density and electrical double layer thickness. PMID- 29347260 TI - Enhancement of polar anchoring strength in a graphene-nematic suspension and its effect on nematic electro-optic switching. AB - A small quantity of monolayer graphene flakes is doped in a nematic liquid crystal (LC), and the effective polar anchoring strength coefficient between the LC and the alignment substrate is found to increase by an order of magnitude. The hexagonal pattern of graphene can interact with the LC's benzene rings via pi-pi electron stacking, enabling the LC to anchor to the graphene surface homogeneously (i.e., planar anchoring). When the LC cell is filled with the graphene-doped LC, some graphene flakes are preferentially attached to the alignment layer and modify the substrate's anchoring property. These spontaneously deposited graphene flakes promote planar anchoring at the substrate and the polar anchoring energy at alignment layer is enhanced significantly. The enhanced anchoring energy is found to impact favorably on the electro-optic response of the LC. Additional studies reveal that the nematic electro-optic switching is significantly faster in the LC-graphene hybrid than that of the pure LC. PMID- 29347261 TI - Light propagation in binary kagome ribbons with evolving disorder. AB - By introducing evolving disorder in the binary kagome ribbons, we study the establishment of diffusive spreading of flat band states characterized by diffractionless propagation in regular periodic ribbons. Our numerical analysis relies on controlling strength and rate of change of disorder during light propagation while tailoring binarism of the kagome ribbons in order to isolate the flat band with the gap from the rest of the ribbon's eigenvalue spectrum and study systematically its influence on diffusion. We show that the flat band plays a dominant role in the establishment of the diffusion for a given strength and rate of change of disorder, whereas the rest of the ribbon's eigenvalue spectrum induces only quantitative differences in the light spreading regimes. Due to the universality of studied phenomena, our findings may be of interest in various disordered physical systems with flat spectral bands, ranging from photonics to ultracold matter systems and plasmonics. PMID- 29347262 TI - Dynamics of a bilayer membrane coupled to a two-dimensional cytoskeleton: Scale transfers of membrane deformations. AB - We theoretically investigate the dynamics of a floating lipid bilayer membrane coupled with a two-dimensional cytoskeleton network, taking into account explicitly the intermonolayer friction, the discrete lattice structure of the cytoskeleton, and its prestress. The lattice structure breaks lateral continuous translational symmetry and couples Fourier modes with different wave vectors. It is shown that within a short time interval a long-wavelength deformation excites a collection of modes with wavelengths shorter than the lattice spacing. These modes relax slowly with a common renormalized rate originating from the long wavelength mode. As a result, and because of the prestress, the slowest relaxation is governed by the intermonolayer friction. Conversely, and most interestingly, forces applied at the scale of the cytoskeleton for a sufficiently long time can cooperatively excite large-scale modes. PMID- 29347263 TI - Modulated phases in a three-dimensional Maier-Saupe model with competing interactions. AB - This work is dedicated to the study of the discrete version of the Maier-Saupe model in the presence of competing interactions. The competition between interactions favoring different orientational ordering produces a rich phase diagram including modulated phases. Using a mean-field approach and Monte Carlo simulations, we show that the proposed model exhibits isotropic and nematic phases and also a series of modulated phases that meet at a multicritical point, a Lifshitz point. Though the Monte Carlo and mean-field phase diagrams show some quantitative disagreements, the Monte Carlo simulations corroborate the general behavior found within the mean-field approximation. PMID- 29347264 TI - Statistical mechanics of stochastic growth phenomena. AB - We develop statistical mechanics for stochastic growth processes and apply it to Laplacian growth by using its remarkable connection with a random matrix theory. The Laplacian growth equation is obtained from the variation principle and describes adiabatic (quasistatic) thermodynamic processes in the two-dimensional Dyson gas. By using Einstein's theory of thermodynamic fluctuations we consider transitional probabilities between thermodynamic states, which are in a one-to one correspondence with simply connected domains occupied by gas. Transitions between these domains are described by the stochastic Laplacian growth equation, while the transitional probabilities coincide with a free-particle propagator on an infinite-dimensional complex manifold with a Kahler metric. PMID- 29347265 TI - Coarsening with nontrivial in-domain dynamics: Correlations and interface fluctuations. AB - Using numerical simulations we investigate the space-time properties of a system in which spirals emerge within coarsening domains, thus giving rise to nontrivial internal dynamics. Initially proposed in the context of population dynamics, the studied six-species model exhibits growing domains composed of three species in a rock-paper-scissors relationship. Through the investigation of different quantities, such as space-time correlations and the derived characteristic length, autocorrelation, density of empty sites, and interface width, we demonstrate that the nontrivial dynamics inside the domains affects the coarsening process as well as the properties of the interfaces separating different domains. Domain growth, aging, and interface fluctuations are shown to be governed by exponents whose values differ from those expected in systems with curvature driven coarsening. PMID- 29347266 TI - Phase separation and folding in swelled nematoelastic films. AB - We explore reshaping of nematoelastic films upon imbibing an isotropic solvent under conditions when isotropic and nematic phases coexist. The structure of the interphase boundary is computed taking into account the optimal nematic orientation governed by interaction of gradients of the nematic order parameter and solvent concentration. This structure determines the effective line tension of the boundary. We further compute equilibrium shapes of deformed thin sheets and cylindrical and spherical shells with the rectilinear or circular shape of the boundary between nematic and isotropic domains. A differential expansion or contraction near this boundary generates a folding pattern spreading out into the bulk of both phases. The hierarchical ordering of this pattern is most pronounced on a cylindrical shell. PMID- 29347267 TI - Decomposition of conditional probability for high-order symbolic Markov chains. AB - The main goal of this paper is to develop an estimate for the conditional probability function of random stationary ergodic symbolic sequences with elements belonging to a finite alphabet. We elaborate on a decomposition procedure for the conditional probability function of sequences considered to be high-order Markov chains. We represent the conditional probability function as the sum of multilinear memory function monomials of different orders (from zero up to the chain order). This allows us to introduce a family of Markov chain models and to construct artificial sequences via a method of successive iterations, taking into account at each step increasingly high correlations among random elements. At weak correlations, the memory functions are uniquely expressed in terms of the high-order symbolic correlation functions. The proposed method fills the gap between two approaches, namely the likelihood estimation and the additive Markov chains. The obtained results may have applications for sequential approximation of artificial neural network training. PMID- 29347268 TI - Nonequilibrium fluctuations during diffusion in liquid layers. AB - Theoretical analysis and experiments have provided compelling evidence of the presence of long-range nonequilibrium concentration fluctuations during diffusion processes in fluids. In this paper, we investigate the dependence of the features of the fluctuations from the dimensionality of the system. In three-dimensional fluids the amplitude of nonequilibrium fluctuations can become several orders of magnitude larger than that of equilibrium fluctuations. Notwithstanding that, the amplitude of nonequilibrium fluctuations remains small with respect to the concentration difference driving the diffusion process. By extending the theory to two-dimensional systems, such as liquid monolayers and bilayers, we show that the amplitude of the fluctuations becomes much stronger than in three-dimensional systems. We investigate the properties of the fronts of diffusion and show that they have a self-affine structure characterized by a Hurst exponent H=1. We discuss the implications of these results for diffusion in liquid crystals and in cellular membranes of living organisms. PMID- 29347269 TI - Length of excitable knots. AB - In this paper, we present extensive numerical simulations of an excitable medium to study the long-term dynamics of knotted vortex strings for all torus knots up to crossing number 11. We demonstrate that FitzHugh-Nagumo evolution preserves the knot topology for all the examples presented, thereby providing a field theory approach to the study of knots. Furthermore, the evolution yields a well defined minimal length for each knot that is comparable to the ropelength of ideal knots. We highlight the role of the medium boundary in stabilizing the length of the knot and discuss the implications beyond torus knots. We also show that there is not a unique attractor within a given knot topology. PMID- 29347270 TI - Detection of nonstationary transition to synchronized states of a neural network using recurrence analyses. AB - We study the stability of asymptotic states displayed by a complex neural network. We focus on the loss of stability of a stationary state of networks using recurrence quantifiers as tools to diagnose local and global stabilities as well as the multistability of a coupled neural network. Numerical simulations of a neural network composed of 1024 neurons in a small-world connection scheme are performed using the model of Braun et al. [Int. J. Bifurcation Chaos 08, 881 (1998)IJBEE40218-127410.1142/S0218127498000681], which is a modified model from the Hodgkin-Huxley model [J. Phys. 117, 500 (1952)]. To validate the analyses, the results are compared with those produced by Kuramoto's order parameter [Chemical Oscillations, Waves, and Turbulence (Springer-Verlag, Berlin Heidelberg, 1984)]. We show that recurrence tools making use of just integrated signals provided by the networks, such as local field potential (LFP) (LFP signals) or mean field values bring new results on the understanding of neural behavior occurring before the synchronization states. In particular we show the occurrence of different stationary and nonstationarity asymptotic states. PMID- 29347271 TI - Machine-learning approach for local classification of crystalline structures in multiphase systems. AB - Machine learning is one of the most popular fields in computer science and has a vast number of applications. In this work we will propose a method that will use a neural network to locally identify crystal structures in a mixed phase Yukawa system consisting of fcc, hcp, and bcc clusters and disordered particles similar to plasma crystals. We compare our approach to already used methods and show that the quality of identification increases significantly. The technique works very well for highly disturbed lattices and shows a flexible and robust way to classify crystalline structures that can be used by only providing particle positions. This leads to insights into highly disturbed crystalline structures. PMID- 29347272 TI - Nonadiabatic dynamics of the excited states for the Lipkin-Meshkov-Glick model. AB - We theoretically investigate the impact of the excited state quantum phase transition on the adiabatic dynamics for the Lipkin-Meshkov-Glick model. Using a time-dependent protocol, we continuously change a model parameter and then discuss the scaling properties of the system especially close to the excited state quantum phase transition where we find that these depend on the energy eigenstate. On top, we show that the mean-field dynamics with the time-dependent protocol gives the correct scaling and expectation values in the thermodynamic limit even for the excited states. PMID- 29347273 TI - Additive scaling law for structural organization of chromatin in chicken erythrocyte nuclei. AB - Small-angle neutron scattering (SANS) on nuclei of chicken erythrocytes demonstrates the cubic dependence of the scattering intensity Q^{-3} in the range of momentum transfer Q?10^{-3}-10^{-2}nm^{-1}. Independent spin-echo SANS measurements give the spin-echo function, which is well described by the exponential law in a range of sizes (3*10^{2})-(3*10^{4}) nm. Both experimental dependences reflect the nature of the structural organization of chromatin in the nucleus of a living cell, which corresponds to the correlation function gamma(r)=ln(xi/r) for r2. The onset of this change does not seem to be determined by the extended Harris criterion. PMID- 29347312 TI - Experimental investigation of water distribution in a two-phase zone during gravity-dominated evaporation. AB - We characterize the water repartition within the partially saturated (two-phase) zone (PSZ) during evaporation from mixed wettable porous media by controlling the wettability of glass beads, their sizes, and as well the surrounding relative humidity. Here, capillary numbers are low and under these conditions, the percolating front is stabilized by gravity. Using experimental and numerical analyses, we find that the PSZ saturation decreases with the Bond number, where packing of smaller particles have higher saturation values than packing made of larger particles. Results also reveal that the extent (height) of the PSZ, as well as water saturation in the PSZ, both increase with wettability. We also numerically calculate the saturation exclusively contained in connected liquid films and results show that values are less than the expected PSZ saturation. These results strongly reflect that the two-phase zone is not solely made up of connected capillary networks but also made of disconnected water clusters or pockets. Moreover, we also find that global saturation (PSZ + full wet zone) decreases with wettability, confirming that greater quantity of water is lost via evaporation with increasing hydrophilicity. These results show that connected liquid films are favored in more-hydrophilic systems while disconnected water pockets are favored in less-hydrophilic systems. PMID- 29347313 TI - Exact mean-energy expansion of Ginibre's gas for coupling constants Gamma=2*(oddinteger). AB - Using the approach of a Vandermonde determinant to the power Gamma=Q^{2}/k_{B}T expansion on monomial functions, a way to find the excess energy U_{exc} of the two-dimensional one-component plasma (2DOCP) on hard and soft disks (or a Dyson gas) for odd values of Gamma/2 is provided. At Gamma=2, the present study not only corroborates the result for the particle-particle energy contribution of the Dyson gas found by Shakirov [Shakirov, Phys. Lett. A 375, 984 (2011)10.1016/j.physleta.2011.01.004] by using an alternative approach, but also provides the exact N-finite expansion of the excess energy of the 2DOCP on the hard disk. The excess energy is fitted to the ansatz of the form U_{exc}=K^{1}N+K^{2}sqrt[N]+K^{3}+K^{4}/N+O(1/N^{2}) to study the finite-size correction, with K^{i} coefficients and N the number of particles. In particular, the bulk term of the excess energy is in agreement with the well known result of Jancovici for the hard disk in the thermodynamic limit [Jancovici, Phys. Rev. Lett. 46, 386 (1981)10.1103/PhysRevLett.46.386]. Finally, an expression is found for the pair correlation function which still keeps a link with the random matrix theory via the kernel in the Ginibre ensemble [Ginibre, J. Math. Phys. 6, 440 (1965)10.1063/1.1704292] for odd values of Gamma/2. A comparison between the analytical two-body density function and histograms obtained with Monte Carlo simulations for small systems and Gamma=2,6,10,... shows that the approach described in this paper may be used to study analytically the crossover behavior from systems in the fluid phase to small crystals. PMID- 29347314 TI - Polymer adsorption on curved surfaces. AB - The conformational behavior of a coarse-grained finite polymer chain near an attractive spherical surface was investigated by means of multicanonical Monte Carlo computer simulations. In a detailed analysis of canonical equilibrium data over a wide range of sphere radius and temperature, we have constructed entire phase diagrams both for nongrafted and end-grafted polymers. For the identification of the conformational phases, we have calculated several energetic and structural observables such as gyration tensor based shape parameters and their fluctuations by canonical statistical analysis. Despite the simplicity of our model, it qualitatively represents in the considered parameter range real systems that are studied in experiments. The work discussed here could have experimental implications from protein-ligand interactions to designing nanosmart materials. PMID- 29347315 TI - Impact of anticipation in dynamical systems. AB - Many animals, including humans, have predictive capabilities and, presumably, base their behavioral decisions-at least partially-upon an anticipated state of their environment. We explore a minimal version of this idea in the context of particles that interact according to a pairwise potential. Anticipation enters the picture by calculating the interparticle forces from linear extrapolations of the particle positions some time tau in the future. Simulations show that for intermediate values of tau, compared to a transient time scale defined by the potential and the initial conditions, the particles form rotating clusters in which the particles are arranged in a hexagonal pattern. Analysis of the system shows that anticipation induces energy dissipation and we show that the kinetic energy asymptotically decays as 1/t. Furthermore, we show that the angular momentum is not necessarily conserved for tau>0, and that asymmetries in the initial condition therefore can cause rotational movement. These results suggest that anticipation could play an important role in collective behavior, since it may induce pattern formation and stabilizes the dynamics of the system. PMID- 29347316 TI - Quantum and classical complexity in coupled maps. AB - We study a generic and paradigmatic two-degrees-of-freedom system consisting of two coupled perturbed cat maps with different types of dynamics. The Wigner separability entropy (WSE)-equivalent to the operator space entanglement entropy and the classical separability entropy (CSE) are used as measures of complexity. For the case where both degrees of freedom are hyperbolic, the maps are classically ergodic and the WSE and the CSE behave similarly, growing to higher values than in the doubly elliptic case. However, when one map is elliptic and the other hyperbolic, the WSE reaches the same asymptotic value than that of the doubly hyperbolic case but at a much slower rate. The CSE only follows the WSE for a few map steps, revealing that classical dynamical features are not enough to explain complexity growth. PMID- 29347317 TI - Onset of fractional-order thermal convection in porous media. AB - The macroscopic description of buoyancy-driven thermal convection in porous media is governed by advection-diffusion processes, which in the presence of thermophysical heterogeneities fail to predict the onset of thermal convection and the average rate of heat transfer. This work extends the classical model of heat transfer in porous media by including a fractional-order advective dispersive term to account for the role of thermophysical heterogeneities in shifting the thermal instability point. The proposed fractional-order model overcomes limitations of the common closure approaches for the thermal dispersion term by replacing the diffusive assumption with a fractional-order model. Through a linear stability analysis and Galerkin procedure, we derive an analytical formula for the critical Rayleigh number as a function of the fractional model parameters. The resulting critical Rayleigh number reduces to the classical value in the absence of thermophysical heterogeneities when solid and fluid phases have similar thermal conductivities. Numerical simulations of the coupled flow equation with the fractional-order energy model near the primary bifurcation point confirm our analytical results. Moreover, data from pore-scale simulations are used to examine the potential of the proposed fractional-order model in predicting the amount of heat transfer across the porous enclosure. The linear stability and numerical results show that, unlike the classical thermal advection dispersion models, the fractional-order model captures the advance and delay in the onset of convection in porous media and provides correct scalings for the average heat transfer in a thermophysically heterogeneous medium. PMID- 29347318 TI - Entropy production in systems with random transition rates close to equilibrium. AB - We study the entropy production of systems out of equilibrium using random networks. We focus on systems with a finite number of states described by a master equation close to equilibrium. The dynamics are mapped into a network of states (nodes) connected by transition rates (links). Using this framework, we analyze the entropy production of ensembles of randomly generated networks owing to specific constraints (e.g., size or symmetries) and identify the most important parameters that determine its value. This analysis gives a null-model estimation for the entropy production that can be used for comparison with specific systems. PMID- 29347319 TI - Electromagnetic-radiation absorption by water. AB - Why does a microwave oven work? How does biological tissue absorb electromagnetic radiation? Astonishingly, we do not have a definite answer to these simple questions because the microscopic processes governing the absorption of electromagnetic waves by water are largely unclarified. This absorption can be quantified by dielectric loss spectra, which reveal a huge peak at a frequency of the exciting electric field of about 20 GHz and a gradual tailing off toward higher frequencies. The microscopic interpretation of such spectra is highly controversial and various superpositions of relaxation and resonance processes ascribed to single-molecule or molecule-cluster motions have been proposed for their analysis. By combining dielectric, microwave, THz, and far-infrared spectroscopy, here we provide nearly continuous temperature-dependent broadband spectra of water. Moreover, we find that corresponding spectra for aqueous solutions reveal the same features as pure water. However, in contrast to the latter, crystallization in these solutions can be avoided by supercooling. As different spectral contributions tend to disentangle at low temperatures, this enables us to deconvolute them when approaching the glass transition under cooling. We find that the overall spectral development, including the 20 GHz feature (employed for microwave heating), closely resembles the behavior known for common supercooled liquids. Thus water's absorption of electromagnetic waves at room temperature is not unusual but very similar to that of glass-forming liquids at elevated temperatures, deep in the low-viscosity liquid regime, and should be interpreted along similar lines. PMID- 29347320 TI - Neural field model of memory-guided search. AB - Many organisms can remember locations they have previously visited during a search. Visual search experiments have shown exploration is guided away from these locations, reducing redundancies in the search path before finding a hidden target. We develop and analyze a two-layer neural field model that encodes positional information during a search task. A position-encoding layer sustains a bump attractor corresponding to the searching agent's current location, and search is modeled by velocity input that propagates the bump. A memory layer sustains persistent activity bounded by a wave front, whose edges expand in response to excitatory input from the position layer. Search can then be biased in response to remembered locations, influencing velocity inputs to the position layer. Asymptotic techniques are used to reduce the dynamics of our model to a low-dimensional system of equations that track the bump position and front boundary. Performance is compared for different target-finding tasks. PMID- 29347321 TI - Analytical solutions for the profile of two-dimensional droplets with finite length precursor films. AB - By means of the lubrication approximation we obtain the full family of static bidimensional profiles of a liquid resting on a substrate under partial-wetting conditions imposed by a disjoining-conjoining pressure. We show that for a set of quite general disjoining-conjoining pressure potentials, the free surface can adopt only five nontrivial static patterns; in particular, we find solutions when the height goes to zero which describe satisfactorily the complete free surface for a finite amount of fluid deposited on a substrate. To test the extension of the applicability of our solutions, we compare them with those obtained when the lubrication approximations are not employed and under conditions where the lubrication hypothesis are not strictly valid, and also with axisymmetric solutions. For a given disjoining-conjoining potential, we report a new analytical solution that accounts for all the five possible solutions. PMID- 29347322 TI - Typical equilibrium state of an embedded quantum system. AB - We consider an arbitrary quantum system coupled nonperturbatively to a large arbitrary and fully quantum environment. In the work by Ithier and Benaych Georges [Phys. Rev. A 96, 012108 (2017)2469-992610.1103/PhysRevA.96.012108] the typicality of the dynamics of such an embedded quantum system was established for several classes of random interactions. In other words, the time evolution of its quantum state does not depend on the microscopic details of the interaction. Focusing on the long-time regime, we use this property to calculate analytically a partition function characterizing the stationary state and involving the overlaps between eigenvectors of a bare and a dressed Hamiltonian. This partition function provides a thermodynamical ensemble which includes the microcanonical and canonical ensembles as particular cases. We check our predictions with numerical simulations. PMID- 29347323 TI - Evolution of inverse cascades and formation of precondensate in Gross-Pitaevskii turbulence in two dimensions. AB - Here we study how coherence appears in a system driven by noise at small scales. In the wave turbulence modeled by the Gross-Pitaevskii or the nonlinear Schrodinger equation, we observe states with correlation scales smaller than the system size but much larger than the excitation scale. We call a such state precondensate to distinguish it from condensate defined as a systemwide coherent state. Both condensate and precondensate are characterized by large-scale phase coherence and a narrow distribution of amplitudes. When one excites small scales, precondensate is achieved relatively quickly by an inverse cascade heating quasiequilibrium distribution of large-scale modes. The transition from the precondensate to the systemwide condensate requires a much longer time. The spectra of precondensate differ from quasiequilibrium and are characterized by two bending points, one on the scale of the average distance between vortex pairs and the other on the scale of the distance between vortices in a pair. We suggest temporal evolution laws for both lengths and use them to predict the probability of the transition to condensate. PMID- 29347324 TI - Exponential integrators in time-dependent density-functional calculations. AB - The integrating factor and exponential time differencing methods are implemented and tested for solving the time-dependent Kohn-Sham equations. Popular time propagation methods used in physics, as well as other robust numerical approaches, are compared to these exponential integrator methods in order to judge the relative merit of the computational schemes. We determine an improvement in accuracy of multiple orders of magnitude when describing dynamics driven primarily by a nonlinear potential. For cases of dynamics driven by a time dependent external potential, the accuracy of the exponential integrator methods are less enhanced but still match or outperform the best of the conventional methods tested. PMID- 29347325 TI - Two-step relaxation mode analysis with multiple evolution times applied to all atom molecular dynamics protein simulation. AB - Proteins implement their functionalities when folded into specific three dimensional structures, and their functions are related to the protein structures and dynamics. Previously, we applied a relaxation mode analysis (RMA) method to protein systems; this method approximately estimates the slow relaxation modes and times via simulation and enables investigation of the dynamic properties underlying the protein structural fluctuations. Recently, two-step RMA with multiple evolution times has been proposed and applied to a slightly complex homopolymer system, i.e., a single [n]polycatenane. This method can be applied to more complex heteropolymer systems, i.e., protein systems, to estimate the relaxation modes and times more accurately. In two-step RMA, we first perform RMA and obtain rough estimates of the relaxation modes and times. Then, we apply RMA with multiple evolution times to a small number of the slowest relaxation modes obtained in the previous calculation. Herein, we apply this method to the results of principal component analysis (PCA). First, PCA is applied to a 2-MUs molecular dynamics simulation of hen egg-white lysozyme in aqueous solution. Then, the two step RMA method with multiple evolution times is applied to the obtained principal components. The slow relaxation modes and corresponding relaxation times for the principal components are much improved by the second RMA. PMID- 29347326 TI - Equation of state of polydisperse hard-disk mixtures in the high-density regime. AB - A proposal to link the equation of state of a monocomponent hard-disk fluid to the equation of state of a polydisperse hard-disk mixture is presented. Event driven molecular dynamics simulations are performed to obtain data for the compressibility factor of the monocomponent fluid and of 26 polydisperse mixtures with different size distributions. Those data are used to assess the proposal and to infer the values of the compressibility factor of the monocomponent hard-disk fluid in the metastable region from those of mixtures in the high-density region. The collapse of the curves for the different mixtures is excellent in the stable region. In the metastable regime, except for two mixtures in which crystallization is present, the outcome of the approach exhibits a rather good performance. The simulation results indicate that a (reduced) variance of the size distribution larger than about 0.01 is sufficient to avoid crystallization and explore the metastable fluid branch. PMID- 29347327 TI - Effective dielectric response of dispersions of graded particles. AB - Based upon our compact group approach and the Hashin-Shtrikman variational theorem, we propose a solution, which effectively incorporates many-particle effects in concentrated systems, to the problem of the effective quasistatic permittivity of dispersions of graded dielectric particles. After the theory is shown to recover existing analytical results and simulation data for dispersions of hard dielectric spheres with power-law permittivity profiles, we use it to describe the effective dielectric response of nonconducting polymer-ceramic composites modeled as dispersions of dielectric core-shell particles. Possible generalizations of the results are specified. PMID- 29347328 TI - Chaos and unpredictability in evolution of cooperation in continuous time. AB - Cooperators benefit others with paying costs. Evolution of cooperation crucially depends on the cost-benefit ratio of cooperation, denoted as c. In this work, we investigate the infinitely repeated prisoner's dilemma for various values of c with four of the representative memory-one strategies, i.e., unconditional cooperation, unconditional defection, tit-for-tat, and win-stay-lose-shift. We consider replicator dynamics which deterministically describes how the fraction of each strategy evolves over time in an infinite-sized well-mixed population in the presence of implementation error and mutation among the four strategies. Our finding is that this three-dimensional continuous-time dynamics exhibits chaos through a bifurcation sequence similar to that of a logistic map as c varies. If mutation occurs with rate MU?1, the position of the bifurcation sequence on the c axis is numerically found to scale as MU^{0.1}, and such sensitivity to MU suggests that mutation may have nonperturbative effects on evolutionary paths. It demonstrates how the microscopic randomness of the mutation process can be amplified to macroscopic unpredictability by evolutionary dynamics. PMID- 29347329 TI - Unified implicit kinetic scheme for steady multiscale heat transfer based on the phonon Boltzmann transport equation. AB - An implicit kinetic scheme is proposed to solve the stationary phonon Boltzmann transport equation (BTE) for multiscale heat transfer problem. Compared to the conventional discrete ordinate method, the present method employs a macroscopic equation to accelerate the convergence in the diffusive regime. The macroscopic equation can be taken as a moment equation for phonon BTE. The heat flux in the macroscopic equation is evaluated from the nonequilibrium distribution function in the BTE, while the equilibrium state in BTE is determined by the macroscopic equation. These two processes exchange information from different scales, such that the method is applicable to the problems with a wide range of Knudsen numbers. Implicit discretization is implemented to solve both the macroscopic equation and the BTE. In addition, a memory reduction technique, which is originally developed for the stationary kinetic equation, is also extended to phonon BTE. Numerical comparisons show that the present scheme can predict reasonable results both in ballistic and diffusive regimes with high efficiency, while the memory requirement is on the same order as solving the Fourier law of heat conduction. The excellent agreement with benchmark and the rapid converging history prove that the proposed macro-micro coupling is a feasible solution to multiscale heat transfer problems. PMID- 29347330 TI - Lagrangian formulation and symmetrical description of liquid dynamics. AB - Theoretical description of liquids has been primarily based on the hydrodynamic approach and its generalization to the solid-like regime. We show that the same liquid properties can be derived starting from solid-like equations and generalizing them to account for the hydrodynamic flow. Both approaches predict propagating shear waves with the notable gap in k-space. This gives an important symmetry of liquids regarding their description. We subsequently construct a two field Lagrangian of liquid dynamics where the dissipative hydrodynamic and solid like terms are treated on equal footing. The Lagrangian predicts two gapped waves propagating in opposite space-time directions. The dissipative and mass terms compete by promoting gaps in k-space and energy, respectively. When bare mass is close to the field hopping frequency, both gaps close and the dissipative term annihilates the bare mass. PMID- 29347331 TI - Two-dimensional collective electron magnetotransport, oscillations, and chaos in a semiconductor superlattice. AB - When quantized, traces of classically chaotic single-particle systems include eigenvalue statistics and scars in eigenfuntions. Since 2001, many theoretical and experimental works have argued that classically chaotic single-electron dynamics influences and controls collective electron transport. For transport in semiconductor superlattices under tilted magnetic and electric fields, these theories rely on a reduction to a one-dimensional self-consistent drift model. A two-dimensional theory based on self-consistent Boltzmann transport does not support that single-electron chaos influences collective transport. This theory agrees with existing experimental evidence of current self-oscillations, predicts spontaneous collective chaos via a period doubling scenario, and could be tested unambiguously by measuring the electric potential inside the superlattice under a tilted magnetic field. PMID- 29347332 TI - Linear and nonlinear market correlations: Characterizing financial crises and portfolio optimization. AB - Pearson correlation and mutual information-based complex networks of the day-to day returns of U.S. S&P500 stocks between 1985 and 2015 have been constructed to investigate the mutual dependencies of the stocks and their nature. We show that both networks detect qualitative differences especially during (recent) turbulent market periods, thus indicating strongly fluctuating interconnections between the stocks of different companies in changing economic environments. A measure for the strength of nonlinear dependencies is derived using surrogate data and leads to interesting observations during periods of financial market crises. In contrast to the expectation that dependencies reduce mainly to linear correlations during crises, we show that (at least in the 2008 crisis) nonlinear effects are significantly increasing. It turns out that the concept of centrality within a network could potentially be used as some kind of an early warning indicator for abnormal market behavior as we demonstrate with the example of the 2008 subprime mortgage crisis. Finally, we apply a Markowitz mean variance portfolio optimization and integrate the measure of nonlinear dependencies to scale the investment exposure. This leads to significant outperformance as compared to a fully invested portfolio. PMID- 29347333 TI - Extending electrostatics of dielectric spheres to arbitrary charge distributions with applications to biosystems. AB - A previously developed classical model of electrostatic interactions, based on a formalism of dielectric spheres, which has been found to have surprising accuracy for S state atoms, is extended by allowing higher-order moments of the intrinsic charge distribution. Two methods to introduce the charge distribution (point moments at the center vs surface charge) are shown to be equivalent and are compared with another common model for polarizable atoms that utilizes polarizable point dipoles. Unlike the polarizable point dipole model, the polarizable spheres models do not suffer from a divergence at small separation of atoms and are easily generalized to higher multipoles. PMID- 29347334 TI - Sequence selection by dynamical symmetry breaking in an autocatalytic binary polymer model. AB - Template-directed replication of nucleic acids is at the essence of all living beings and a major milestone for any origin of life scenario. We present an idealized model of prebiotic sequence replication, where binary polymers act as templates for their autocatalytic replication, thereby serving as each others reactants and products in an intertwined molecular ecology. Our model demonstrates how autocatalysis alters the qualitative and quantitative system dynamics in counterintuitive ways. Most notably, numerical simulations reveal a very strong intrinsic selection mechanism that favors the appearance of a few population structures with highly ordered and repetitive sequence patterns when starting from a pool of monomers. We demonstrate both analytically and through simulation how this "selection of the dullest" is caused by continued symmetry breaking through random fluctuations in the transient dynamics that are amplified by autocatalysis and eventually propagate to the population level. The impact of these observations on related prebiotic mathematical models is discussed. PMID- 29347335 TI - Saturation of entropy production in quantum many-body systems. AB - Bridging the second law of thermodynamics and microscopic reversible dynamics has been a longstanding problem in statistical physics. Here, we address this problem on the basis of quantum many-body physics, and discuss how the entropy production saturates in isolated quantum systems under unitary dynamics. First, we rigorously prove that the entropy production does indeed saturate in the long time regime, even when the total system is in a pure state. Second, we discuss the non-negativity of the entropy production at saturation, implying the second law of thermodynamics. This is based on the eigenstate thermalization hypothesis, which states that even a single energy eigenstate is thermal. We also numerically demonstrate that the entropy production saturates at a non-negative value even when the initial state of a heat bath is a single energy eigenstate. Our results reveal fundamental properties of the entropy production in isolated quantum systems at late times. PMID- 29347336 TI - Numerical study of two disks settling in an Oldroyd-B fluid: From periodic interaction to chaining. AB - In this article, we present a numerical study of the dynamics of two disks sedimenting in a narrow vertical channel filled with an Oldroyd-B fluid. Two kinds of particle dynamics are observed: (i) a periodic interaction between the two disks, and (ii) the formation of a two-disk chain. For the periodic interaction of the two disks, two different motions are observed: (a) the two disks stay far apart and interact periodically, and (b) the two disks interact closely and then far apart in a periodic way, like the drafting, kissing, and tumbling of two disks sedimenting in a Newtonian fluid, due to a weak elastic force. Concerning the formation of a two-disk chain occurring at higher values of the elasticity number, either a tilted chain or a vertical chain is observed. Our simulations show that, as expected, the values of the elasticity and Mach numbers are the determining factors concerning the particle chain formation and its orientation. PMID- 29347337 TI - Controlling percolation with limited resources. AB - Connectivity, or the lack thereof, is crucial for the function of many man-made systems, from financial and economic networks over epidemic spreading in social networks to technical infrastructure. Often, connections are deliberately established or removed to induce, maintain, or destroy global connectivity. Thus, there has been a great interest in understanding how to control percolation, the transition to large-scale connectivity. Previous work, however, studied control strategies assuming unlimited resources. Here, we depart from this unrealistic assumption and consider the effect of limited resources on the effectiveness of control. We show that, even for scarce resources, percolation can be controlled with an efficient intervention strategy. We derive such an efficient strategy and study its implications, revealing a discontinuous transition as an unintended side effect of optimal control. PMID- 29347338 TI - Numerical solution of modified differential equations based on symmetry preservation. AB - In this paper, we propose a method to construct invariant finite-difference schemes for solution of partial differential equations (PDEs) via consideration of modified forms of the underlying PDEs. The invariant schemes, which preserve Lie symmetries, are obtained based on the method of equivariant moving frames. While it is often difficult to construct invariant numerical schemes for PDEs due to complicated symmetry groups associated with cumbersome discrete variable transformations, we note that symmetries associated with more convenient transformations can often be obtained by appropriately modifying the original PDEs. In some cases, modifications to the original PDEs are also found to be useful in order to avoid trivial solutions that might arise from particular selections of moving frames. In our proposed method, modified forms of PDEs can be obtained either by addition of perturbation terms to the original PDEs or through defect correction procedures. These additional terms, whose primary purpose is to enable symmetries with more convenient transformations, are then removed from the system by considering moving frames for which these specific terms go to zero. Further, we explore selection of appropriate moving frames that result in improvement in accuracy of invariant numerical schemes based on modified PDEs. The proposed method is tested using the linear advection equation (in one- and two-dimensions) and the inviscid Burgers' equation. Results obtained for these tests cases indicate that numerical schemes derived from the proposed method perform significantly better than existing schemes not only by virtue of improvement in numerical accuracy but also due to preservation of qualitative properties or symmetries of the underlying differential equations. PMID- 29347339 TI - Rheology of dense granular flows for elongated particles. AB - We study the rheology of dense granular flows for frictionless spherocylinders by means of 3D numerical simulations. As in the case of spherical particles, the effective friction MU is an increasing function of the inertial number I, and we systematically investigate the dependence of MU on the particle aspect ratio Q, as well as that of the normal stress differences, the volume fraction, and the coordination number. We show in particular that the quasistatic friction coefficient is nonmonotonic with Q: from the spherical case Q=1, it first sharply increases, reaches a maximum around Q?1.05, and then gently decreases until Q=3, passing its initial value at Q?2. We provide a microscopic interpretation for this unexpected behavior through the analysis of the distribution of dissipative contacts around the particles: as compared to spheres, slightly elongated grains enhance contacts in their central cylindrical band, whereas at larger aspect ratios particles tend to align and dissipate by preferential contacts at their hemispherical caps. PMID- 29347340 TI - Mirror node correlations tuning synchronization in multiplex networks. AB - We show that the degree-degree correlations have a major impact on global synchronizability (GS) of multiplex networks, enabling the specification of synchronizability by only changing the degree-degree correlations of the mirror nodes while maintaining the connection architecture of the individual layer unaltered. If individual layers have nodes that are mildly correlated, the multiplex network is best synchronizable when the mirror degrees are strongly negatively correlated. If individual layers have nodes with strong degree-degree correlations, mild correlations among the degrees of mirror nodes are the best strategy for the optimization of GS. Global synchronization also depend on the density of connections, a phenomenon not observed in a single layer network. The results are crucial to understand, predict, and specify behavior of systems having multiple types of connections among the interacting units. PMID- 29347341 TI - Spatial correlations of hydrodynamic fluctuations in simple fluids under shear flow: A mesoscale simulation study. AB - Hydrodynamic fluctuations in simple fluids under shear flow are demonstrated to be spatially correlated, in contrast to the fluctuations at equilibrium, using mesoscopic hydrodynamic simulations. The simulation results for the equal-time hydrodynamic correlations in a multiparticle collision dynamics (MPC) fluid in shear flow are compared with the explicit expressions obtained from fluctuating hydrodynamics calculations. For large wave vectors k, the nonequilibrium contributions to transverse and longitudinal velocity correlations decay as k^{ 4} for wave vectors along the flow direction and as k^{-2} for the off-flow directions. For small wave vectors, a crossover to a slower decay occurs, indicating long-range correlations in real space. The coupling between the transverse velocity components, which vanishes at equilibrium, also exhibits a k^{-2} dependence on the wave vector. In addition, we observe a quadratic dependency on the shear rate of the nonequilibrium contribution to pressure. PMID- 29347342 TI - Synchronization of coupled active rotators by common noise. AB - We study the effect of common noise on coupled active rotators. While such a noise always facilitates synchrony, coupling may be attractive (synchronizing) or repulsive (desynchronizing). We develop an analytical approach based on a transformation to approximate angle-action variables and averaging over fast rotations. For identical rotators, we describe a transition from full to partial synchrony at a critical value of repulsive coupling. For nonidentical rotators, the most nontrivial effect occurs at moderate repulsive coupling, where a juxtaposition of phase locking with frequency repulsion (anti-entrainment) is observed. We show that the frequency repulsion obeys a nontrivial power law. PMID- 29347343 TI - Dissipation, lag, and drift in driven fluctuating systems. AB - This work deals with thermostated fluctuating systems subjected to driven transformations of the internal energetics. The main focus is on generally multidimensional systems with continuous configurational degrees of freedom over which overdamped Markovian fluctuations take place (diffusive regime of the motion). Mutual bounds are established between the average energy dissipation, the deviation between nonequilibrium probability density and underlying equilibrium distribution due to the system's lag, and the statistical properties of the components of the directed flow induced by the transformation itself. The directed flow is here expressed in terms of time-dependent "drift velocity" associated with the probability current in a advection-like formulation of the nonstationary Fokker-Planck equation. Consideration of the drift makes that the bounds achieved here extend the inequality derived by Vaikuntanathan and Jarzynski [Europhys. Lett. 87, 60005 (2009)EULEEJ0295-507510.1209/0295 5075/87/60005] involving only dissipation and lag. The key relations are then specified for the so-called stochastic pumps, i.e., systems that reach a periodic steady state in response of cyclic transformations and that are prototypes of nonautonomous dissipative converters of input energy into directed motion; a one dimensional case model is adopted to illustrate the main features. Complementary results concerning bounds between the evolution rates of dissipation and lag, valid for both overdamped and underdamped dynamics, are also presented. PMID- 29347344 TI - Experimental investigation of mesoscopic heterogeneous motion of laser-activated self-propelling Janus particles in suspension. AB - The mesoscopic collective motion of self-propelling active particle suspension is experimentally investigated. The active particles are silica micro spheres with Au hemisphere coating, and their propelling strength is activated by laser irradiation. The suspension is driven from equilibrium to near equilibrium and far from equilibrium by tuning the excitation laser intensity. By use of the long term particle tracking technique, the time evolution of a large amount of active particles is resolvable. For low laser intensity, the suspension is driven to near equilibrium state with homogeneous superdiffusion motion. The strength of enhanced superdiffusion is monotonically related to the laser intensity. For high laser intensity, the motility-induced phase separation with the coexistence of dense cluster and very dilute individual particle are observed. It leads to highly heterogeneous dynamic with less mobile jammed cluster and fast-moving particles and subsequently suppresses the enhanced superdiffusion. Such heterogeneous dynamics is similar to many far from equilibrium systems. Finally, the degree away from equilibrium (Gaussian dynamics) triggered by propelling strength is quantified by non-Gaussian parameters. PMID- 29347345 TI - Effect of temperature on the dynamics and geometry of reactive-wetting interfaces around room temperature. AB - The temperature effect on the dynamics and geometry of a mercury droplet (~150 MUm) spreading on a silver substrate (4000 A) was studied. The system temperature was controlled by a heating stage in the temperature range of -15 degrees C < T < 25 degrees C, and the spreading process was monitored using an optical microscope. We studied the wetting dynamics (droplet radius and velocity) as a function of temperature. We found that for all studied temperatures, the spreading radius R(t) grows linearly with time, with a velocity value depending on temperature. We also studied the temperature effect on the kinetic roughening properties of the advancing interface (growth (beta) and roughness (alpha) exponents). Our results show that the growth exponent increases with temperature while the roughness exponent is relatively constant. In addition, we obtained the system's activation energy at this temperature range. PMID- 29347346 TI - Elucidating distinct ion channel populations on the surface of hippocampal neurons via single-particle tracking recurrence analysis. AB - Protein and lipid nanodomains are prevalent on the surface of mammalian cells. In particular, it has been recently recognized that ion channels assemble into surface nanoclusters in the soma of cultured neurons. However, the interactions of these molecules with surface nanodomains display a considerable degree of heterogeneity. Here, we investigate this heterogeneity and develop statistical tools based on the recurrence of individual trajectories to identify subpopulations within ion channels in the neuronal surface. We specifically study the dynamics of the K^{+} channel Kv1.4 and the Na^{+} channel Nav1.6 on the surface of cultured hippocampal neurons at the single-molecule level. We find that both these molecules are expressed in two different forms with distinct kinetics with regards to surface interactions, emphasizing the complex proteomic landscape of the neuronal surface. Further, the tools presented in this work provide new methods for the analysis of membrane nanodomains, transient confinement, and identification of populations within single-particle trajectories. PMID- 29347347 TI - Energetics in a model of prebiotic evolution. AB - Previously we reported [A. Wynveen et al., Phys. Rev. E 89, 022725 (2014)PLEEE81539-375510.1103/PhysRevE.89.022725] that requiring that the systems regarded as lifelike be out of chemical equilibrium in a model of abstracted polymers undergoing ligation and scission first introduced by Kauffman [S. A. Kauffman, The Origins of Order (Oxford University Press, New York, 1993), Chap. 7] implied that lifelike systems were most probable when the reaction network was sparse. The model was entirely statistical and took no account of the bond energies or other energetic constraints. Here we report results of an extension of the model to include effects of a finite bonding energy in the model. We studied two conditions: (1) A food set is continuously replenished and the total polymer population is constrained but the system is otherwise isolated and (2) in addition to the constraints in (1) the system is in contact with a finite temperature heat bath. In each case, detailed balance in the dynamics is guaranteed during the computations by continuous recomputation of a temperature [in case (1)] and of the chemical potential (in both cases) toward which the system is driven by the dynamics. In the isolated case, the probability of reaching a metastable nonequilibrium state in this model depends significantly on the composition of the food set, and the nonequilibrium states satisfying lifelike condition turn out to be at energies and particle numbers consistent with an equilibrium state at high negative temperature. As a function of the sparseness of the reaction network, the lifelike probability is nonmonotonic, as in our previous model, but the maximum probability occurs when the network is less sparse. In the case of contact with a thermal bath at a positive ambient temperature, we identify two types of metastable nonequilibrium states, termed locally and thermally alive, and locally dead and thermally alive, and evaluate their likelihood of appearance, finding maxima at an optimal temperature and an optimal degree of sparseness in the network. We use a Euclidean metric in the space of polymer populations to distinguish these states from one another and from fully equilibrated states. The metric can be used to characterize the degree and type of chemical equilibrium in observed systems, as we illustrate for the proteome of the ribosome. PMID- 29347348 TI - Consciousness as a global property of brain dynamic activity. AB - We seek general principles of the structure of the cellular collective activity associated with conscious awareness. Can we obtain evidence for features of the optimal brain organization that allows for adequate processing of stimuli and that may guide the emergence of cognition and consciousness? Analyzing brain recordings in conscious and unconscious states, we followed initially the classic approach in physics when it comes to understanding collective behaviours of systems composed of a myriad of units: the assessment of the number of possible configurations (microstates) that the system can adopt, for which we use a global entropic measure associated with the number of connected brain regions. Having found maximal entropy in conscious states, we then inspected the microscopic nature of the configurations of connections using an adequate complexity measure and found higher complexity in states characterized not only by conscious awareness but also by subconscious cognitive processing, such as sleep stages. Our observations indicate that conscious awareness is associated with maximal global (macroscopic) entropy and with the short time scale (microscopic) complexity of the configurations of connected brain networks in pathological unconscious states (seizures and coma), but the microscopic view captures the high complexity in physiological unconscious states (sleep) where there is information processing. As such, our results support the global nature of conscious awareness, as advocated by several theories of cognition. We thus hope that our studies represent preliminary steps to reveal aspects of the structure of cognition that leads to conscious awareness. PMID- 29347349 TI - Importance sampling with imperfect cloning for the computation of generalized Lyapunov exponents. AB - We revisit the numerical calculation of generalized Lyapunov exponents, L(q), in deterministic dynamical systems. The standard method consists of adding noise to the dynamics in order to use importance sampling algorithms. Then L(q) is obtained by taking the limit noise-amplitude -> 0 after the calculation. We focus on a particular method that involves periodic cloning and pruning of a set of trajectories. However, instead of considering a noisy dynamics, we implement an imperfect (noisy) cloning. This alternative method is compared with the standard one and, when possible, with analytical results. As a workbench we use the asymmetric tent map, the standard map, and a system of coupled symplectic maps. The general conclusion of this study is that the imperfect-cloning method performs as well as the standard one, with the advantage of preserving the deterministic dynamics. PMID- 29347350 TI - Birth of a subaqueous barchan dune. AB - Barchan dunes are crescentic shape dunes with horns pointing downstream. The present paper reports the formation of subaqueous barchan dunes from initially conical heaps in a rectangular channel. Because the most unique feature of a barchan dune is its horns, we associate the time scale for the appearance of horns to the formation of a barchan dune. A granular heap initially conical was placed on the bottom wall of a closed conduit and it was entrained by a water flow in turbulent regime. After a certain time, horns appear and grow, until an equilibrium length is reached. Our results show the existence of the time scales 0.5t_{c} and 2.5t_{c} for the appearance and equilibrium of horns, respectively, where t_{c} is a characteristic time that scales with the grains diameter, gravity acceleration, densities of the fluid and grains, and shear and threshold velocities. PMID- 29347351 TI - Kinetics of doublet formation in bicomponent magnetic suspensions: The role of the magnetic permeability anisotropy. AB - Micron-sized particles (microbeads) dispersed in a suspension of magnetic nanoparticles, i.e., ferrofluids, can be assembled into different types of structures upon application of an external magnetic field. This paper is devoted to theoretical modeling of a relative motion of a pair of microbeads (either soft ferromagnetic or diamagnetic) in the ferrofluid under the action of applied uniform magnetic field which induces magnetic moments in the microbeads making them attracting to each other. The model is based on a point-dipole approximation for the magnetic interactions between microbeads mediated by the ferrofluid; however, the ferrofluid is considered to possess an anisotropic magnetic permeability thanks to field-induced structuring of its nanoparticles. The model is tested against experimental results and shows generally better agreement with experiments than the model considering isotropic magnetic permeability of ferrofluids. The results could be useful for understanding kinetics of aggregation of microbeads suspended in a ferrofluid. From a broader perspective, the present study is believed to contribute to a general understanding of particle behaviors in anisotropic media. PMID- 29347352 TI - Simple scaling laws for the evaporation of droplets pinned on pillars: Transfer rate- and diffusion-limited regimes. AB - The evaporation of droplets can give rise to a wide range of interesting phenomena in which the dynamics of the evaporation are crucial. In this work, we find simple scaling laws for the evaporation dynamics of axisymmetric droplets pinned on millimeter-sized pillars. Different laws are found depending on whether evaporation is limited by the diffusion of vapor molecules or by the transfer rate across the liquid-vapor interface. For the diffusion-limited regime, we find that a mass-loss rate equal to 3/7 of that of a free-standing evaporating droplet brings a good balance between simplicity and physical correctness. We also find a scaling law for the evaporation of multicomponent solutions. The scaling laws found are validated against experiments of the evaporation of droplets of (1) water, (2) blood plasma, and (3) a mixture of water and polyethylene glycol, pinned on acrylic pillars of different diameters. These results shed light on the macroscopic dynamics of evaporation on pillars as a first step towards the understanding of other complex phenomena that may be taking place during the evaporation process, such as particle transport and chemical reactions. PMID- 29347353 TI - Theory of nonstationary Hawkes processes. AB - We expand the theory of Hawkes processes to the nonstationary case, in which the mutually exciting point processes receive time-dependent inputs. We derive an analytical expression for the time-dependent correlations, which can be applied to networks with arbitrary connectivity, and inputs with arbitrary statistics. The expression shows how the network correlations are determined by the interplay between the network topology, the transfer functions relating units within the network, and the pattern and statistics of the external inputs. We illustrate the correlation structure using several examples in which neural network dynamics are modeled as a Hawkes process. In particular, we focus on the interplay between internally and externally generated oscillations and their signatures in the spike and rate correlation functions. PMID- 29347354 TI - Coarsening and pattern formation during true morphological phase separation in unstable thin films under gravity. AB - We address in detail the problem of true morphological phase separation (MPS) in three-dimensional or (2+1)-dimensional unstable thin liquid films (>100nm) under the influence of gravity. The free-energy functionals of these films are asymmetric and show two points of common tangency, which facilitates the formation of two equilibrium phases. Three distinct patterns formed by relative preponderance of these phases are clearly identified in "true MPS". Asymmetricity induces two different pathways of pattern formation, viz., defect and direct pathway for true MPS. The pattern formation and phase-ordering dynamics have been studied using statistical measures such as structure factor, correlation function, and growth laws. In the late stage of coarsening, the system reaches into a scaling regime for both pathways, and the characteristic domain size follows the Lifshitz-Slyozov growth law [L(t)~t^{1/3}]. However, for the defect pathway, there is a crossover of domain growth behavior from L(t)~t^{1/4} >t^{1/3} in the dynamical scaling regime. We also underline the analogies and differences behind the mechanisms of MPS and true MPS in thin liquid films and generic spinodal phase separation in binary mixtures. PMID- 29347355 TI - Inverse Ising problem in continuous time: A latent variable approach. AB - We consider the inverse Ising problem: the inference of network couplings from observed spin trajectories for a model with continuous time Glauber dynamics. By introducing two sets of auxiliary latent random variables we render the likelihood into a form which allows for simple iterative inference algorithms with analytical updates. The variables are (1) Poisson variables to linearize an exponential term which is typical for point process likelihoods and (2) Polya Gamma variables, which make the likelihood quadratic in the coupling parameters. Using the augmented likelihood, we derive an expectation-maximization (EM) algorithm to obtain the maximum likelihood estimate of network parameters. Using a third set of latent variables we extend the EM algorithm to sparse couplings via L1 regularization. Finally, we develop an efficient approximate Bayesian inference algorithm using a variational approach. We demonstrate the performance of our algorithms on data simulated from an Ising model. For data which are simulated from a more biologically plausible network with spiking neurons, we show that the Ising model captures well the low order statistics of the data and how the Ising couplings are related to the underlying synaptic structure of the simulated network. PMID- 29347356 TI - First- and second-order quantum phase transitions of a q-state Potts model in fractal lattices. AB - Quantum phase transitions of a q-state Potts model in fractal lattices are studied using a continuous-time quantum Monte Carlo simulation technique. For small values of q, the transition is found to be second order and critical exponents of the quantum critical point are calculated. The dynamic critical exponent z is found to be greater than one for all fractals studied, which is in contrast to integer-dimensional regular lattices. When q is greater than a certain value q_{c}, the phase transition becomes first order, where q_{c} depends on the lattice. Further analysis shows that the characteristics of phase transitions are more sensitive to the average number of nearest neighbors than the Hausdorff dimension or the order of ramification. PMID- 29347357 TI - Coupled Lorenz oscillators near the Hopf boundary: Multistability, intermingled basins, and quasiriddling. AB - We investigate the dynamics of coupled identical chaotic Lorenz oscillators just above the subcritical Hopf bifurcation. In the absence of coupling, the motion is on a strange chaotic attractor and the fixed points of the system are all unstable. With the coupling, the unstable fixed points are converted into chaotic attractors, and the system can exhibit a multiplicity of coexisting attractors. Depending on the strength of the coupling, the motion of the individual oscillators can be synchronized (both in and out of phase) or desynchronized and in addition there can be mixed phases. We find that the basins have a complex structure: the state that is asymptotically reached shows extreme sensitivity to initial conditions. The basins of attraction of these different states are characterized using a variety of measures and depending on the strength of the coupling, they are intermingled or quasiriddled. PMID- 29347358 TI - Divergence of activity expansions: Is it actually a problem? AB - For realistic interaction models, which include both molecular attraction and repulsion (e.g., Lennard-Jones, modified Lennard-Jones, Morse, and square-well potentials), the asymptotic behavior of the virial expansions for pressure and density in powers of activity has been studied taking power terms of high orders into account on the basis of the known finite-order irreducible integrals as well as the recent approximations of infinite irreducible series. Even in the divergence region (at subcritical temperatures), this behavior stays thermodynamically adequate (in contrast to the behavior of the virial equation of state with the same set of irreducible integrals) and corresponds to the beginning of the first-order phase transition: the divergence yields the jump (discontinuity) in density at constant pressure and chemical potential. In general, it provides a statistical explanation of the condensation phenomenon, but for liquid or solid states, the physically proper description (which can turn the infinite discontinuity into a finite jump of density) still needs further study of high-order cluster integrals and, especially, their real dependence on the system volume (density). PMID- 29347359 TI - Self-organized emergence of multilayer structure and chimera states in dynamical networks with adaptive couplings. AB - We report the phenomenon of self-organized emergence of hierarchical multilayered structures and chimera states in dynamical networks with adaptive couplings. This process is characterized by a sequential formation of subnetworks (layers) of densely coupled elements, the size of which is ordered in a hierarchical way, and which are weakly coupled between each other. We show that the hierarchical structure causes the decoupling of the subnetworks. Each layer can exhibit either a two-cluster state, a periodic traveling wave, or an incoherent state, and these states can coexist on different scales of subnetwork sizes. PMID- 29347360 TI - Incorporation of velocity-dependent restitution coefficient and particle surface friction into kinetic theory for modeling granular flow cooling. AB - Kinetic theory (KT) has been successfully used to model rapid granular flows in which particle interactions are frictionless and near elastic. However, it fails when particle interactions become frictional and inelastic. For example, the KT is not able to accurately predict the free cooling process of a vibrated granular medium that consists of inelastic frictional particles under microgravity. The main reason that the classical KT fails to model these flows is due to its inability to account for the particle surface friction and its inelastic behavior, which are the two most important factors that need be considered in modeling collisional granular flows. In this study, we have modified the KT model that is able to incorporate these two factors. The inelasticity of a particle is considered by establishing a velocity-dependent expression for the restitution coefficient based on many experimental studies found in the literature, and the particle friction effect is included by using a tangential restitution coefficient that is related to the particle friction coefficient. Theoretical predictions of the free cooling process by the classical KT and the improved KT are compared with the experimental results from a study conducted on an airplane undergoing parabolic flights without the influence of gravity [Y. Grasselli, G. Bossis, and G. Goutallier, Europhys. Lett. 86, 60007 (2009)10.1209/0295 5075/86/60007]. Our results show that both the velocity-dependent restitution coefficient and the particle surface friction are important in predicting the free cooling process of granular flows; the modified KT model that integrates these two factors is able to improve the simulation results and leads to better agreement with the experimental results. PMID- 29347361 TI - Folding time dependence of the motions of a molecular motor in an amorphous medium. AB - We investigate the dependence of the displacements of a molecular motor embedded inside a glassy material on its folding characteristic time tau_{f}. We observe two different time regimes. For slow foldings (regime I) the diffusion evolves very slowly with tau_{f}, while for rapid foldings (regime II) the diffusion increases strongly with tau_{f}(D~tau_{f}^{-2}), suggesting two different physical mechanisms. We find that in regime I the motor's displacement during the folding process is counteracted by a reverse displacement during the unfolding, while in regime II this counteraction is much weaker. We notice that regime I behavior is reminiscent of the scallop theorem that holds for larger motors in a continuous medium. We find that the difference in the efficiency of the motor's motion explains most of the observed difference between the two regimes. For fast foldings the motor trajectories differ significantly from the opposite trajectories induced by the following unfolding process, resulting in a more efficient global motion than for slow foldings. This result agrees with the fluctuation theorems expectation for time reversal mechanisms. In agreement with the fluctuation theorems we find that the motors are unexpectedly more efficient when they are generating more entropy, a result that can be used to increase dramatically the motor's motion. PMID- 29347362 TI - Phase transitions in a system of long rods on two-dimensional lattices by means of information theory. AB - The orientational phase transitions that occur in the deposition of longitudinal polymers of length k (in terms of lattice units) are characterized by information theory techniques. We calculate the absolute value of an order parameter delta, which weights the relative orientations of the deposited rods, which varies between 0.0 (random orientation) and 1.0 (fully oriented in either of the two equivalent directions in an L*L square lattice). A Monte Carlo (MC) algorithm is implemented to induce a dynamics allowing for accommodation of the rods for any given density or coverage theta (ratio of the occupied sites over all the sites in the lattice). The files storing delta(t) (with time t measured in MC steps) are then treated by data recognizer wlzip based on data compressor techniques yielding the information content measured by a parameter eta(theta). This allows us to recognize two maxima separated by a well-defined minimum for eta(theta) provided k>=7. The first maximum is associated with an isotropic-nematic (I-N) phase transition occurring at intermediate density, while the second maximum is associated with some kind of nematic-isotropic transition at high coverage. In the cases of k<7, the curves for eta(theta) are almost constant, presenting a very broad maximum which can hardly be associated with a phase transition. The study varies L and k, allowing for a basic scaling of the found critical densities towards the thermodynamic limit. These calculations confirm the tendency obtained by different methods in the case of the intermediate-density I N phase transition, while this tendency is established here in the case of the high-density phase transition. PMID- 29347363 TI - Control of viscous fingering by nanoparticles. AB - A substantial viscosity increase by the addition of a low dose of nanoparticles to the base fluids can well influence the dynamics of viscous fingering. There is a lack of detailed theoretical studies that address the effect of the presence of nanoparticles on unstable miscible displacements. In this study, the impact of nonreactive nanoparticle presence on the stability and subsequent mixing of an originally unstable binary system is examined using linear stability analysis (LSA) and pseudospectral-based direct numerical simulations (DNS). We have parametrized the role of both nondepositing and depositing nanoparticles on the stability of miscible displacements using the developed static and dynamic parametric analyses. Our results show that nanoparticles have the potential to weaken the instabilities of an originally unstable system. Our LSA and DNS results also reveal that nondepositing nanoparticles can be used to fully stabilize an originally unstable front while depositing particles may act as temporary stabilizers whose influence diminishes in the course of time. In addition, we explain the existing inconsistencies concerning the effect of the nanoparticle diffusion coefficient on the dynamics of the system. This study provides a basis for further research on the application of nanoparticles for control of viscosity-driven instabilities. PMID- 29347364 TI - Distribution of shortest cycle lengths in random networks. AB - We present analytical results for the distribution of shortest cycle lengths (DSCL) in random networks. The approach is based on the relation between the DSCL and the distribution of shortest path lengths (DSPL). We apply this approach to configuration model networks, for which analytical results for the DSPL were obtained before. We first calculate the fraction of nodes in the network which reside on at least one cycle. Conditioning on being on a cycle, we provide the DSCL over ensembles of configuration model networks with degree distributions which follow a Poisson distribution (Erdos-Renyi network), degenerate distribution (random regular graph), and a power-law distribution (scale-free network). The mean and variance of the DSCL are calculated. The analytical results are found to be in very good agreement with the results of computer simulations. PMID- 29347365 TI - Solution x-ray scattering and structure formation in protein dynamics. AB - We propose a computationally effective approach that builds on Landau mean-field theory in combination with modern nonequilibrium statistical mechanics to model and interpret protein dynamics and structure formation in small- to wide-angle x ray scattering (S/WAXS) experiments. We develop the methodology by analyzing experimental data in the case of Engrailed homeodomain protein as an example. We demonstrate how to interpret S/WAXS data qualitatively with a good precision and over an extended temperature range. We explain experimental observations in terms of protein phase structure, and we make predictions for future experiments and for how to analyze data at different ambient temperature values. We conclude that the approach we propose has the potential to become a highly accurate, computationally effective, and predictive tool for analyzing S/WAXS data. For this, we compare our results with those obtained previously in an all-atom molecular dynamics simulation. PMID- 29347366 TI - Switching synchronization in one-dimensional memristive networks: An exact solution. AB - We study a switching synchronization phenomenon taking place in one-dimensional memristive networks when the memristors switch from the high- to low-resistance state. It is assumed that the distributions of threshold voltages and switching rates of memristors are arbitrary. Using the Laplace transform, a set of nonlinear equations describing the memristors dynamics is solved exactly, without any approximations. The time dependencies of memristances are found, and it is shown that the voltage falls across memristors are proportional to their threshold voltages. A compact expression for the network switching time is derived. PMID- 29347368 TI - Three-scale analysis of the permeability of a natural shale. AB - The macroscopic permeability of a natural shale is determined by using structural measurements on three different scales. Transmission electron microscopy yields two-dimensional (2D) images with pixels smaller than 1 nm; these images are used to reconstruct 3D nanostructures. Three-dimensional focused ion beam-scanning electron microscopy (5.95- to 8.48-nm voxel size) provides 3D mesoscale pores of limited relative volume (1.71-5.9%). Micro-computed tomography (700-nm voxel size) provides information on the mineralogy of the shale, including the pores on this scale which do not percolate; synthetic 3D media are derived on the macroscopic scale by a training image technique. Permeability of the nanoscale, of the mesoscale structures and of their superposition is determined by solving the Stokes equation and this enables us to estimate the permeabilities of the 700 nm voxels located within the clay matrix. Finally, the Darcy equation is solved on synthetic 3D macroscale media to obtain the macroscopic permeability which is found in good agreement with experimental results obtained on the centimetric scale. PMID- 29347367 TI - Elastic and viscous properties of the nematic dimer CB7CB. AB - We present a comprehensive set of measurements of optical, dielectric, diamagnetic, elastic, and viscous properties in the nematic (N) phase formed by a liquid crystalline dimer. The studied dimer, 1,7-bis-4-(4'-cyanobiphenyl) heptane (CB7CB), is composed of two rigid rodlike cyanobiphenyl segments connected by a flexible aliphatic link with seven methyl groups. CB7CB and other nematic dimers are of interest due to their tendency to adopt bent configurations and to form two states possessing a modulated nematic director structure, namely, the twist bend nematic, N_{TB}, and the oblique helicoidal cholesteric, Ch_{OH}, which occurs when the achiral dimer is doped with a chiral additive and exposed to an external electric or magnetic field. We characterize the material parameters as functions of temperature in the entire temperature range of the N phase, including the pretransitional regions near the N-N_{TB} and N-to-isotropic (I) transitions. The splay constant K_{11} is determined by two direct and independent techniques, namely, detection of the Frederiks transition and measurement of director fluctuation amplitudes by dynamic light scattering (DLS). The bend K_{33} and twist K_{22} constants are measured by DLS. K_{33}, being the smallest of the three constants, shows a strong nonmonotonous temperature dependence with a negative slope in both N-I and N-N_{TB} pretransitional regions. The measured ratio K_{11}/K_{22} is larger than 2 in the entire nematic temperature range. The orientational viscosities associated with splay, twist, and bend fluctuations in the N phase are comparable to those of nematics formed by rodlike molecules. All three show strong temperature dependence, increasing sharply near the N-N_{TB} transition. PMID- 29347369 TI - Relaxation-type nonlocal inertial-number rheology for dry granular flows. AB - We propose a constitutive model to describe the nonlocality, hysteresis, and several flow features of dry granular materials. Taking the well-known inertial number I as a measure of sheared-induced local fluidization, we derive a relaxation model for I according to the evolution of microstructure during avalanche and dissipation processes. The model yields a nonmonotonic flow law for a homogeneous flow, accounting for hysteretic solid-fluid transition and intermittency in quasistatic flows. For an inhomogeneous flow, the model predicts a generalized Bagnold shear stress revealing the interplay of two microscopic nonlocal mechanisms: collisions among correlated structures and the diffusion of fluidization within the structures. In describing a uniform flow down an incline, the model reproduces the hysteretic starting and stopping heights and the Pouliquen flow rule for mean velocity. Moreover, a dimensionless parameter reflecting the nonlocal effect on the flow is discovered, which controls the transition between Bagnold and creeping flow dynamics. PMID- 29347370 TI - Crucial events, randomness, and multifractality in heartbeats. AB - We study the connection between multifractality and crucial events. Multifractality is frequently used as a measure of physiological variability, where crucial events are known to play a fundamental role in the transport of information between complex networks. To establish the connection of interest we focus on the special case of heartbeat time series and on the search for a diagnostic prescription to distinguish healthy from pathologic subjects. Over the past 20 years two apparently different diagnostic techniques have been established: the first is based on the observation that the multifractal spectrum of healthy patients is broader than the multifractal spectrum of pathologic subjects; the second is based on the observation that heartbeat dynamics are a superposition of crucial and uncorrelated Poisson-like events, with pathologic patients hosting uncorrelated Poisson-like events with larger probability than the healthy patients. In this paper, we prove that increasing the percentage of uncorrelated Poisson-like events hosted by heartbeats has the effect of making their multifractal spectrum narrower, thereby establishing that the two different diagnostic techniques are compatible with one another and, at the same time, establishing a dynamic interpretation of multifractal processes that had been previously overlooked. PMID- 29347371 TI - Boundary effects in a quasi-two-dimensional driven granular fluid. AB - The effect of a confining boundary on the spatial variations in granular temperature of a driven quasi-two-dimensional layer of particles is investigated experimentally. The radial drop in the relative granular temperature DeltaT/T exhibits a maximum at intermediate particle numbers which coincides with a crossover from kinetic to collisional transport of energy. It is also found that at low particle numbers, the distributions of radial velocities are increasingly asymmetric as one approaches the boundary. The radial and tangential granular temperatures split, and in the tails of the radial velocity distribution there is a higher population of fast moving particles traveling away rather than towards the boundary. PMID- 29347372 TI - Lattice Boltzmann heat transfer model for permeable voxels. AB - We develop a gray-scale lattice Boltzmann (LB) model to study fluid flow combined with heat transfer for flow through porous media where voxels may be partially solid (or void). Heat transfer in rocks may lead to deformation, which in turn can modulate the fluid flow and so has significant contribution to rock permeability. The LB temperature field is compared to a finite difference solution of the continuum partial differential equations for fluid flow in a channel. Excellent quantitative agreement is found for both Poiseuille channel flow and Brinkman flow. The LB model is then applied to sample porous media such as packed beds and also more realistic sandstone rock sample, and both the convective and diffusive regimes are recovered when varying the thermal diffusivity. It is found that while the rock permeability can be comparatively small (order milli-Darcy), the temperature field can show significant variation depending on the thermal convection of the fluid. This LB method has significant advantages over other numerical methods such as finite and boundary element methods in dealing with coupled fluid flow and heat transfer in rocks which have irregular and nonsmooth pore spaces. PMID- 29347373 TI - Quantum chaos for nonstandard symmetry classes in the Feingold-Peres model of coupled tops. AB - We consider two coupled quantum tops with angular momentum vectors L and M. The coupling Hamiltonian defines the Feingold-Peres model, which is a known paradigm of quantum chaos. We show that this model has a nonstandard symmetry with respect to the Altland-Zirnbauer tenfold symmetry classification of quantum systems, which extends the well-known threefold way of Wigner and Dyson (referred to as "standard" symmetry classes here). We identify the nonstandard symmetry classes BDI_{0} (chiral orthogonal class with no zero modes), BDI_{1} (chiral orthogonal class with one zero mode), and CI (antichiral orthogonal class) as well as the standard symmetry class AI (orthogonal class). We numerically analyze the specific spectral quantum signatures of chaos related to the nonstandard symmetries. In the microscopic density of states and in the distribution of the lowest positive energy eigenvalue, we show that the Feingold-Peres model follows the predictions of the Gaussian ensembles of random-matrix theory in the appropriate symmetry class if the corresponding classical dynamics is chaotic. In a crossover to mixed and near-integrable classical dynamics, we show that these signatures disappear or strongly change. PMID- 29347374 TI - Relative velocities in bidisperse turbulent suspensions. AB - We investigate the distribution of relative velocities between small heavy particles of different sizes in turbulence by analyzing a statistical model for bidisperse turbulent suspensions, containing particles with two different Stokes numbers. This number, St, is a measure of particle inertia which in turn depends on particle size. When the Stokes numbers are similar, the distribution exhibits power-law tails, just as in the case of equal St. The power-law exponent is a nonanalytic function of the mean Stokes number St[over -], so that the exponent cannot be calculated in perturbation theory around the advective limit. When the Stokes-number difference is larger, the power law disappears, but the tails of the distribution still dominate the relative-velocity moments, if St[over -] is large enough. PMID- 29347375 TI - Probing the anomalous dynamical phase in long-range quantum spin chains through Fisher-zero lines. AB - Using the framework of infinite matrix product states, the existence of an anomalous dynamical phase for the transverse-field Ising chain with sufficiently long-range interactions was first reported in J. C. Halimeh and V. Zauner-Stauber [Phys. Rev. B 96, 134427 (2017)10.1103/PhysRevB.96.134427], where it was shown that anomalous cusps arise in the Loschmidt-echo return rate for sufficiently small quenches within the ferromagnetic phase. In this work we further probe the nature of the anomalous phase through calculating the corresponding Fisher-zero lines in the complex time plane. We find that these Fisher-zero lines exhibit a qualitative difference in their behavior, where, unlike in the case of the regular phase, some of them terminate before intersecting the imaginary axis, indicating the existence of smooth peaks in the return rate preceding the cusps. Additionally, we discuss in detail the infinite matrix product state time evolution method used to calculate Fisher zeros and the Loschmidt-echo return rate using the matrix product state transfer matrix. Our work sheds further light on the nature of the anomalous phase in the long-range transverse-field Ising chain, while the numerical treatment presented can be applied to more general quantum spin chains. PMID- 29347376 TI - Numerical solution of the general coupled nonlinear Schrodinger equations on unbounded domains. AB - The numerical solution of the general coupled nonlinear Schrodinger equations on unbounded domains is considered by applying the artificial boundary method in this paper. In order to design the local absorbing boundary conditions for the coupled nonlinear Schrodinger equations, we generalize the unified approach previously proposed [J. Zhang et al., Phys. Rev. E 78, 026709 (2008)PLEEE81539 375510.1103/PhysRevE.78.026709]. Based on the methodology underlying the unified approach, the original problem is split into two parts, linear and nonlinear terms, and we then achieve a one-way operator to approximate the linear term to make the wave out-going, and finally we combine the one-way operator with the nonlinear term to derive the local absorbing boundary conditions. Then we reduce the original problem into an initial boundary value problem on the bounded domain, which can be solved by the finite difference method. The stability of the reduced problem is also analyzed by introducing some auxiliary variables. Ample numerical examples are presented to verify the accuracy and effectiveness of our proposed method. PMID- 29347377 TI - Edge instability in incompressible planar active fluids. AB - Interfacial instability is highly relevant to many important biological processes. A key example arises in wound healing experiments, which observe that an epithelial layer with an initially straight edge does not heal uniformly. We consider the phenomenon in the context of active fluids. Improving upon the approximation used by Zimmermann, Basan, and Levine [Eur. Phys. J.: Spec. Top. 223, 1259 (2014)1951-635510.1140/epjst/e2014-02189-7], we perform a linear stability analysis on a two-dimensional incompressible hydrodynamic model of an active fluid with an open interface. We categorize the stability of the model and find that for experimentally relevant parameters, fingering instability is always absent in this minimal model. Our results point to the crucial role of density variation in the fingering instability in tissue regeneration. PMID- 29347378 TI - Interfacial mixing in high-energy-density matter with a multiphysics kinetic model. AB - We have extended a recently developed multispecies, multitemperature Bhatnagar Gross-Krook model [Haack et al., J. Stat. Phys. 168, 822 (2017)JSTPBS0022 471510.1007/s10955-017-1824-9], to include multiphysics capabilities that enable modeling of a wider range of physical conditions. In terms of geometry, we have extended from the spatially homogeneous setting to one spatial dimension. In terms of the physics, we have included an atomic ionization model, accurate collision physics across coupling regimes, self-consistent electric fields, and degeneracy in the electronic screening. We apply the model to a warm dense matter scenario in which the ablator-fuel interface of an inertial confinement fusion target is heated, but for larger length and time scales and for much higher temperatures than can be simulated using molecular dynamics. Relative to molecular dynamics, the kinetic model greatly extends the temperature regime and the spatiotemporal scales over which we are able to model. In our numerical results we observe hydrogen from the ablator material jetting into the fuel during the early stages of the implosion and compare the relative size of various diffusion components (Fickean diffusion, electrodiffusion, and barodiffusion) that drive this process. We also examine kinetic effects, such as anisotropic distributions and velocity separation, in order to determine when this problem can be described with a hydrodynamic model. PMID- 29347379 TI - Neuronal network model of interictal and recurrent ictal activity. AB - We propose a neuronal network model which undergoes a saddle node on an invariant circle bifurcation as the mechanism of the transition from the interictal to the ictal (seizure) state. In the vicinity of this transition, the model captures important dynamical features of both interictal and ictal states. We study the nature of interictal spikes and early warnings of the transition predicted by this model. We further demonstrate that recurrent seizures emerge due to the interaction between two networks. PMID- 29347380 TI - Homoclinic snaking in the discrete Swift-Hohenberg equation. AB - We consider the discrete Swift-Hohenberg equation with cubic and quintic nonlinearity, obtained from discretizing the spatial derivatives of the Swift Hohenberg equation using central finite differences. We investigate the discretization effect on the bifurcation behavior, where we identify three regions of the coupling parameter, i.e., strong, weak, and intermediate coupling. Within the regions, the discrete Swift-Hohenberg equation behaves either similarly or differently from the continuum limit. In the intermediate coupling region, multiple Maxwell points can occur for the periodic solutions and may cause irregular snaking and isolas. Numerical continuation is used to obtain and analyze localized and periodic solutions for each case. Theoretical analysis for the snaking and stability of the corresponding solutions is provided in the weak coupling region. PMID- 29347381 TI - Maximum entropy modeling of metabolic networks by constraining growth-rate moments predicts coexistence of phenotypes. AB - In this work maximum entropy distributions in the space of steady states of metabolic networks are considered upon constraining the first and second moments of the growth rate. Coexistence of fast and slow phenotypes, with bimodal flux distributions, emerges upon considering control on the average growth (optimization) and its fluctuations (heterogeneity). This is applied to the carbon catabolic core of Escherichia coli where it quantifies the metabolic activity of slow growing phenotypes and it provides a quantitative map with metabolic fluxes, opening the possibility to detect coexistence from flux data. A preliminary analysis on data for E. coli cultures in standard conditions shows degeneracy for the inferred parameters that extend in the coexistence region. PMID- 29347382 TI - Aging in mortal superdiffusive Levy walkers. AB - A growing body of literature examines the effects of superdiffusive subballistic movement premeasurement (aging or time lag) on observations arising from single particle tracking. A neglected aspect is the finite lifetime of these Levy walkers, be they proteins, cells, or larger structures. We examine the effects of aging on the motility of mortal walkers, and discuss the means by which permanent stopping of walkers may be categorized as arising from "natural" death or experimental artifacts such as low photostability or radiation damage. This is done by comparison of the walkers' mean squared displacement (MSD) with the front velocity of propagation of a group of walkers, which is found to be invariant under time lags. For any running time distribution of a mortal random walker, the MSD is tempered by the stopping rate theta. This provides a physical interpretation for truncated heavy-tailed diffusion processes and serves as a tool by which to better classify the underlying running time distributions of random walkers. Tempering of aged MSDs raises the issue of misinterpreting superdiffusive motion which appears Brownian or subdiffusive over certain time scales. PMID- 29347383 TI - Wavelet-based regularization of the Galerkin truncated three-dimensional incompressible Euler flows. AB - We present numerical simulations of the three-dimensional Galerkin truncated incompressible Euler equations that we integrate in time while regularizing the solution by applying a wavelet-based denoising. For this, at each time step, the vorticity field is decomposed into wavelet coefficients, which are split into strong and weak coefficients, before reconstructing them in physical space to obtain the corresponding coherent and incoherent vorticities. Both components are multiscale and orthogonal to each other. Then, by using the Biot-Savart kernel, one obtains the coherent and incoherent velocities. Advancing the coherent flow in time, while filtering out the noiselike incoherent flow, models turbulent dissipation and corresponds to an adaptive regularization. To track the flow evolution in both space and scale, a safety zone is added in wavelet coefficient space to the coherent wavelet coefficients. It is shown that the coherent flow indeed exhibits an intermittent nonlinear dynamics and a k^{-5/3} energy spectrum, where k is the wave number, characteristic of three-dimensional homogeneous isotropic turbulence. Finally, we compare the dynamical and statistical properties of Euler flows subjected to four kinds of regularizations: dissipative (Navier-Stokes), hyperdissipative (iterated Laplacian), dispersive (Euler-Voigt), and wavelet-based regularizations. PMID- 29347384 TI - Bifurcation analysis and phase diagram of a spin-string model with buckled states. AB - We analyze a one-dimensional spin-string model, in which string oscillators are linearly coupled to their two nearest neighbors and to Ising spins representing internal degrees of freedom. String-spin coupling induces a long-range ferromagnetic interaction among spins that competes with a spin-spin antiferromagnetic coupling. As a consequence, the complex phase diagram of the system exhibits different flat rippled and buckled states, with first or second order transition lines between states. This complexity translates to the two dimensional version of the model, whose numerical solution has been recently used to explain qualitatively the rippled to buckled transition observed in scanning tunneling microscopy experiments with suspended graphene sheets. Here we describe in detail the phase diagram of the simpler one-dimensional model and phase stability using bifurcation theory. This gives additional insight into the physical mechanisms underlying the different phases and the behavior observed in experiments. PMID- 29347385 TI - Organization and scaling in water supply networks. AB - Public water supply is one of the society's most vital resources and most costly infrastructures. Traditional concepts of these networks capture their engineering identity as isolated, deterministic hydraulic units, but overlook their physics identity as related entities in a probabilistic, geographic ensemble, characterized by size organization and property scaling. Although discoveries of allometric scaling in natural supply networks (organisms and rivers) raised the prospect for similar findings in anthropogenic supplies, so far such a finding has not been reported in public water or related civic resource supplies. Examining an empirical ensemble of large number and wide size range, we show that water supply networks possess self-organized size abundance and theory-explained allometric scaling in spatial, infrastructural, and resource- and emission-flow properties. These discoveries establish scaling physics for water supply networks and may lead to novel applications in resource- and jurisdiction-scale water governance. PMID- 29347386 TI - Finite plateau in spectral gap of polychromatic constrained random networks. AB - We consider critical behavior in the ensemble of polychromatic Erdos-Renyi networks and regular random graphs, where network vertices are painted in different colors. The links can be randomly removed and added to the network subject to the condition of the vertex degree conservation. In these constrained graphs we run the Metropolis procedure, which favors the connected unicolor triads of nodes. Changing the chemical potential, MU, of such triads, for some wide region of MU, we find the formation of a finite plateau in the number of intercolor links, which exactly matches the finite plateau in the network algebraic connectivity (the value of the first nonvanishing eigenvalue of the Laplacian matrix, lambda_{2}). We claim that at the plateau the spontaneously broken Z_{2} symmetry is restored by the mechanism of modes collectivization in clusters of different colors. The phenomena of a finite plateau formation holds also for polychromatic networks with M>=2 colors. The behavior of polychromatic networks is analyzed via the spectral properties of their adjacency and Laplacian matrices. PMID- 29347387 TI - Anomalous interfacial temperature profile induced by phonon localization. AB - Through the integration of the power spectral density, we obtain temperature profiles of both multisegment harmonic and anharmonic systems, showing the presence of an anomalous negative temperature gradient inside the interfacial segment. Via investigating patterns of the power spectral density, we found that the counterintuitive phenomenon comes from the presence of interfacial localized phonon modes. Two out-band localized modes of the harmonic model, which make no contributions to local temperature due to the absence of phonon interactions, result in the concave temperature profile and overcooling effect. For the anharmonic model, thanks to the phonon-phonon interactions, the localized modes are excited and make considerable contributions to interfacial temperature, which is clearly shown by examining the temperature accumulation function. When anharmonicity is considerably large, the negative temperature gradient is absent since the localized phonon modes are fully mixed. The presence of localized modes are evidently demonstrated by the inverse participation ratio and normal mode analysis for the isolated harmonic model. The localized modes make contribution to interfacial temperature profiles of the harmonic system when they are excited in initial conditions of simulations. PMID- 29347388 TI - Finite volume method for self-consistent field theory of polymers: Material conservation and application. AB - For the purpose of checking material conservation of various numerical algorithms used in the self-consistent-field theory (SCFT) of polymeric systems, we develop an algebraic method using matrix and bra-ket notation, which traces the Hermiticity of the product of the volume and evolution matrices. Algebraic tests for material conservation reveal that the popular pseudospectral method in the Cartesian grid conserves material perfectly, while the finite-volume method (FVM) is the proper tool when real-space SCFT with the Crank-Nicolson method is adopted in orthogonal coordinate systems. We also find that alternating direction implicit methods combined with the FVM exhibit small mass errors in the SCFT calculation. By introducing fractional cells in the FVM formulation, accurate SCFT calculations are performed for systems with irregular geometries and the results are consistent with previous experimental and theoretical works. PMID- 29347389 TI - Integral fluctuation theorems for stochastic resetting systems. AB - We study the stochastic thermodynamics of resetting systems. Violation of microreversibility means that the well-known derivations of fluctuations theorems break down for dynamics with resetting. Despite that we show that stochastic resetting systems satisfy two integral fluctuation theorems. The first is the Hatano-Sasa relation describing the transition between two steady states. The second integral fluctuation theorem involves a functional that includes both dynamical and thermodynamic contributions. We find that the second law-like inequality found by Fuchs et al. for resetting systems [Europhys. Lett. 113, 60009 (2016)EULEEJ0295-507510.1209/0295-5075/113/60009] can be recovered from this integral fluctuation theorem with the help of Jensen's inequality. PMID- 29347390 TI - Coalescing colony model: Mean-field, scaling, and geometry. AB - We analyze the coalescing model where a 'primary' colony grows and randomly emits secondary colonies that spread and eventually coalesce with it. This model describes population proliferation in theoretical ecology, tumor growth, and is also of great interest for modeling urban sprawl. Assuming the primary colony to be always circular of radius r(t) and the emission rate proportional to r(t)^{theta}, where theta>0, we derive the mean-field equations governing the dynamics of the primary colony, calculate the scaling exponents versus theta, and compare our results with numerical simulations. We then critically test the validity of the circular approximation for the colony shape and show that it is sound for a constant emission rate (theta=0). However, when the emission rate is proportional to the perimeter, the circular approximation breaks down and the roughness of the primary colony cannot be discarded, thus modifying the scaling exponents. PMID- 29347391 TI - Search efficiency of biased migration towards stationary or moving targets in heterogeneously structured environments. AB - Efficient search acts as a strong selective force in biological systems ranging from cellular populations to predator-prey systems. The search processes commonly involve finding a stationary or mobile target within a heterogeneously structured environment where obstacles limit migration. An open generic question is whether random or directionally biased motions or a combination of both provide an optimal search efficiency and how that depends on the motility and density of targets and obstacles. To address this question, we develop a simple model that involves a random walker searching for its targets in a heterogeneous medium of bond percolation square lattice and used mean first passage time () as an indication of average search time. Our analysis reveals a dual effect of directional bias on the minimum value of . For a homogeneous medium, directionality always decreases and a pure directional migration (a ballistic motion) serves as the optimized strategy, while for a heterogeneous environment, we find that the optimized strategy involves a combination of directed and random migrations. The relative contribution of these modes is determined by the density of obstacles and motility of targets. Existence of randomness and motility of targets add to the efficiency of search. Our study reveals generic and simple rules that govern search efficiency. Our findings might find application in a number of areas including immunology, cell biology, ecology, and robotics. PMID- 29347392 TI - Two-dimensional dynamics of a trapped active Brownian particle in a shear flow. AB - We model the two-dimensional dynamics of a pointlike artificial microswimmer diffusing in a harmonic trap subject to the shear flow of a highly viscous medium. The particle is driven simultaneously by the linear restoring force of the trap, the drag force exerted by the flow, and the torque due to the shear gradient. For a Couette flow, elliptical orbits in the noiseless regime, and the correlation functions between the particle's displacements parallel and orthogonal to the flow are computed analytically. The effects of thermal fluctuations (translational) and self-propulsion fluctuations (angular) are treated separately. Finally, we discuss how to extend our approach to the diffusion of a microswimmer in a Poiseuille flow. These results provide an accurate reference solution to investigate, both numerically and experimentally, hydrodynamics corrections to the diffusion of active matter in confined geometries. PMID- 29347393 TI - Ultrasonic waves in classical gases. AB - The velocity and absorption coefficient for the plane sound waves in a classical gas are obtained by solving the Boltzmann kinetic equation, which describes the reaction of the single-particle distribution function to a periodic external field. Within the linear response theory, the nonperturbative dispersion equation valid for all sound frequencies is derived and solved numerically. The results are in agreement with the approximate analytical solutions found for both the frequent- and rare-collision regimes. These results are also in qualitative agreement with the experimental data for ultrasonic waves in dilute gases. PMID- 29347394 TI - Linking biological and physical aging: Dynamical scaling of multicellular regeneration. AB - The fight against biological aging (bio-aging) is long-standing, with the focus of intense research aimed at maintaining high rates of tissue regeneration to promote health and longevity. Nevertheless, there are overwhelming complexities associated with the quantitative analysis of aging. In this study, we sought to quantify bio-aging based on physical aging, by mapping instances of multicellular regeneration to the relaxation of physical systems. An experiment of delayed wound healing assays was devised to obtain delay-dependent healing data. The experiment confirmed the slowdown of healing events, which fitted dynamical scaling just as relaxation events do in physical aging. The scaling exponent, which describes the aging rate in physics, is here similarly proposed as an indicator of the deterioration rate of tissue-regenerative power. Parallel equation-based and cell-based simulations also revealed that asymmetric cell cycle-regulatory mechanisms under strong growth-inhibitory conditions predominantly control the critical slowdown of healing analogous to physical criticality. By establishing a direct link between physical aging and biological aging, we are able to estimate the aging rate of tissues and to achieve an integrated understanding of bio-aging mechanism which may improve the modulation of regeneration for clinical use. PMID- 29347395 TI - Scarcity of crossing dependencies: A direct outcome of a specific constraint? AB - The structure of a sentence can be represented as a network where vertices are words and edges indicate syntactic dependencies. Interestingly, crossing syntactic dependencies have been observed to be infrequent in human languages. This leads to the question of whether the scarcity of crossings in languages arises from an independent and specific constraint on crossings. We provide statistical evidence suggesting that this is not the case, as the proportion of dependency crossings of sentences from a wide range of languages can be accurately estimated by a simple predictor based on a null hypothesis on the local probability that two dependencies cross given their lengths. The relative error of this predictor never exceeds 5% on average, whereas the error of a baseline predictor assuming a random ordering of the words of a sentence is at least six times greater. Our results suggest that the low frequency of crossings in natural languages is neither originated by hidden knowledge of language nor by the undesirability of crossings per se, but as a mere side effect of the principle of dependency length minimization. PMID- 29347396 TI - Diffusiophoresis in nonadsorbing polymer solutions: The Asakura-Oosawa model and stratification in drying films. AB - A colloidal particle placed in an inhomogeneous solution of smaller nonadsorbing polymers will move towards regions of lower polymer concentration in order to reduce the free energy of the interface between the surface of the particle and the solution. This phenomenon is known as diffusiophoresis. Treating the polymer as penetrable hard spheres, as in the Asakura-Oosawa model, a simple analytic expression for the diffusiophoretic drift velocity can be obtained. In the context of drying films we show that diffusiophoresis by this mechanism can lead to stratification under easily accessible experimental conditions. By stratification we mean spontaneous formation of a layer of polymer on top of a layer of the colloid. Transposed to the case of binary colloidal mixtures, this offers an explanation for the stratification observed recently in these systems [A. Fortini et al., Phys. Rev. Lett. 116, 118301 (2016)PRLTAO0031 900710.1103/PhysRevLett.116.118301]. Our results emphasize the importance of treating solvent dynamics explicitly in these problems and caution against the neglect of hydrodynamic interactions or the use of implicit solvent models in which the absence of solvent backflow results in an unbalanced osmotic force that gives rise to large but unphysical effects. PMID- 29347397 TI - Maximum of an Airy process plus Brownian motion and memory in Kardar-Parisi-Zhang growth. AB - We obtain several exact results for universal distributions involving the maximum of the Airy_{2} process minus a parabola and plus a Brownian motion, with applications to the one-dimensional Kardar-Parisi-Zhang (KPZ) stochastic growth universality class. This allows one to obtain (i) the universal limit, for large time separation, of the two-time height correlation for droplet initial conditions, e.g., C_{infinity}=lim_{t_{2}/t_{1}->+infinity}h(t_{1})h(t_{2})[over ]^{c}/h(t_{1})^{2}[over -]^{c}, with C_{infinity}~0.623, as well as conditional moments, which quantify ergodicity breaking in the time evolution; (ii) in the same limit, the distribution of the midpoint position x(t_{1}) of a directed polymer of length t_{2}; and (iii) the height distribution in stationary KPZ with a step. These results are derived from the replica Bethe ansatz for the KPZ continuum equation, with a "decoupling assumption" in the large time limit. They agree and confirm, whenever they can be compared, with (i) our recent tail results for two-time KPZ with the work by de Nardis and Le Doussal [J. Stat. Mech. (2017) 0532121742-546810.1088/1742-5468/aa6bce], checked in experiments with the work by Takeuchi and co-workers [De Nardis et al., Phys. Rev. Lett. 118, 125701 (2017)PRLTAO0031-900710.1103/PhysRevLett.118.125701] and (ii) a recent result of Maes and Thiery [J. Stat. Phys. 168, 937 (2017)JSTPBS0022 471510.1007/s10955-017-1839-2] on midpoint position. PMID- 29347398 TI - Forced underwater laminar flows with active magnetohydrodynamic metamaterials. AB - Theory and practical implementations for wake-free propulsion systems are proposed and proven with computational fluid dynamic modeling. Introduced earlier, the concept of active hydrodynamic metamaterials is advanced by introducing magnetohydrodynamic metamaterials, structures with custom-designed volumetric distribution of Lorentz forces acting on a conducting fluid. Distributions of volume forces leading to wake-free, laminar flows are designed using multivariate optimization. Theoretical indications are presented that such flows can be sustained at arbitrarily high Reynolds numbers. Moreover, it is shown that in the limit Re?10^{2}, a fixed volume force distribution may lead to a forced laminar flow across a wide range of Re numbers, without the need to reconfigure the force-generating metamaterial. Power requirements for such a device are studied as a function of the fluid conductivity. Implications to the design of distributed propulsion systems underwater and in space are discussed. PMID- 29347399 TI - Correlation between peak-height modulation and phase lapses in transport through quantum dots. AB - We show that two intriguing features of mesoscopic transport, namely, the modulation of Coulomb blockade peak heights and the transmission phase lapses occurring between subsequent peaks, are closely related. Our analytic arguments are corroborated by numerical simulations for chaotic ballistic quantum dots. The correlations between the two properties are experimentally testable. The statistical distribution of the partial-width amplitude, at the heart of the previous relationship, is determined, and its characteristic parameters are estimated from simple models. PMID- 29347401 TI - Transport on intermediate time scales in flows with cat's eye patterns. AB - We consider the advection-diffusion transport of tracers in a one-parameter family of plane periodic flows where the patterns of streamlines feature regions of confined circulation in the shape of "cat's eyes," separated by meandering jets with ballistic motion inside them. By varying the parameter, we proceed from the regular two-dimensional lattice of eddies without jets to the sinusoidally modulated shear flow without eddies. When a weak thermal noise is added, i.e., at large Peclet numbers, several intermediate time scales arise, with qualitatively and quantitatively different transport properties: depending on the parameter of the flow, the initial position of a tracer, and the aging time, motion of the tracers ranges from subdiffusive to superballistic. We report on results of extensive numerical simulations of the mean-squared displacement for different initial conditions in ordinary and aged situations. These results are compared with a theory based on a Levy walk that describes the intermediate-time ballistic regime and gives a reasonable description of the behavior for a certain class of initial conditions. The interplay of the walk process with internal circulation dynamics in the trapped state results at intermediate time scales in nonmonotonic characteristics of aging not captured by the Levy walk model. PMID- 29347400 TI - Disordered hyperuniformity in two-component nonadditive hard-disk plasmas. AB - We study the behavior of a classical two-component ionic plasma made up of nonadditive hard disks with additional logarithmic Coulomb interactions between them. Due to the Coulomb repulsion, long-wavelength total density fluctuations are suppressed and the system is globally hyperuniform. Short-range volume effects lead to phase separation or to heterocoordination for positive or negative nonadditivities, respectively. These effects compete with the hidden long-range order imposed by hyperuniformity. As a result, the critical behavior of the mixture is modified, with long-wavelength concentration fluctuations partially damped when the system is charged. It is also shown that the decrease of configurational entropy due to hyperuniformity originates from contributions beyond the two-particle level. Finally, despite global hyperuniformity, we show that in our system the spatial configuration associated with each component separately is not hyperuniform, i.e., the system is not "multihyperuniform." PMID- 29347402 TI - Stable lattice Boltzmann model for Maxwell equations in media. AB - : The present work shows a method for stable simulations via the lattice Boltzmann (LB) model for electromagnetic waves (EM) transiting homogeneous media. LB models for such media were already presented in the literature, but they suffer from numerical instability when the media transitions are sharp. We use one of these models in the limit of pure vacuum derived from Liu and Yan [Appl. Math. MODEL: 38, 1710 (2014)AMMODL0307-904X10.1016/j.apm.2013.09.009] and apply an extension that treats the effects of polarization and magnetization separately. We show simulations of simple examples in which EM waves travel into media to quantify error scaling, stability, accuracy, and time scaling. For conductive media, we use the Strang splitting and check the simulations accuracy at the example of the skin effect. Like pure EM propagation, the error for the static limits, which are constructed with a current density added in a first order scheme, can be less than 1%. The presented method is an easily implemented alternative for the stabilization of simulation for EM waves propagating in spatially complex structured media properties and arbitrary transitions. PMID- 29347403 TI - Influence of periodic external fields in multiagent models with language dynamics. AB - We investigate large-scale effects induced by external fields, phenomenologically interpreted as mass media, in multiagent models evolving with the microscopic dynamics of the binary naming game. In particular, we show that a single external field, broadcasting information at regular time intervals, can reverse the majority opinion of the population, provided the frequency and the effectiveness of the sent messages lie above well-defined thresholds. We study the phase structure of the model in the mean field approximation and in numerical simulations with several network topologies. We also investigate the influence on the agent dynamics of two competing external fields, periodically broadcasting different messages. In finite regions of the parameter space we observe periodic equilibrium states in which the average opinion densities are reversed with respect to naive expectations. Such equilibria occur in two cases: (i) when the frequencies of the competing messages are different but close to each other; (ii) when the frequencies are equal and the relative time shift of the messages does not exceed half a period. We interpret the observed phenomena as a result of the interplay between the external fields and the internal dynamics of the agents and conclude that, depending on the model parameters, the naming game is consistent with scenarios of first- or second-mover advantage (to borrow an expression from the jargon of business strategy). PMID- 29347404 TI - Scale-invariant Green-Kubo relation for time-averaged diffusivity. AB - In recent years it was shown both theoretically and experimentally that in certain systems exhibiting anomalous diffusion the time- and ensemble-averaged mean-squared displacement are remarkably different. The ensemble-averaged diffusivity is obtained from a scaling Green-Kubo relation, which connects the scale-invariant nonstationary velocity correlation function with the transport coefficient. Here we obtain the relation between time-averaged diffusivity, usually recorded in single-particle tracking experiments, and the underlying scale-invariant velocity correlation function. The time-averaged mean-squared displacement is given by ~2D_{nu}t^{beta}Delta^{nu-beta}, where t is the total measurement time and Delta is the lag time. Here nu is the anomalous diffusion exponent obtained from ensemble-averaged measurements ~t^{nu}, while beta>=-1 marks the growth or decline of the kinetic energy ~t^{beta}. Thus, we establish a connection between exponents that can be read off the asymptotic properties of the velocity correlation function and similarly for the transport constant D_{nu}. We demonstrate our results with nonstationary scale-invariant stochastic and deterministic models, thereby highlighting that systems with equivalent behavior in the ensemble average can differ strongly in their time average. If the averaged kinetic energy is finite, beta=0, the time scaling of and are identical; however, the time-averaged transport coefficient D_{nu} is not identical to the corresponding ensemble-averaged diffusion constant. PMID- 29347405 TI - Revisiting universality of the liquid-gas critical point in two dimensions. AB - Critical point of liquid-gas (LG) transition does not conform with the paradigm of spontaneous symmetry breaking because there is no broken symmetry in both phases. We revisit the conjecture that this critical point belongs to the Ising class by performing large scale Monte Carlo simulations in two-dimensional free space in combination with the numerical flowgram method. Our main result is that the critical indices do agree with the Onsager values within the error of 1%-2%. This significantly improves the accuracy reported in the literature. The related problem about the role of higher order odd terms in the (real) phi^{4} field model as a mapping of the LG transition is addressed too. The scaling dimension of the phi^{5} term at criticality is shown to be the same as that of the linear one phi. We suggest that the role of all higher order odd terms at criticality is simply in generating the linear field operator with the critical dimension consistent with the Ising universality class. PMID- 29347406 TI - Fast inverse nonlinear Fourier transformation using exponential one-step methods: Darboux transformation. AB - This paper considers the non-Hermitian Zakharov-Shabat (ZS) scattering problem which forms the basis for defining the SU(2) nonlinear Fourier transformation (NFT). The theoretical underpinnings of this generalization of the conventional Fourier transformation are quite well established in the Ablowitz-Kaup-Newell Segur formalism; however, efficient numerical algorithms that could be employed in practical applications are still unavailable. In this paper, we present a unified framework for the forward and inverse NFT using exponential one-step methods which are amenable to FFT-based fast polynomial arithmetic. Within this discrete framework, we propose a fast Darboux transformation (FDT) algorithm having an operational complexity of O(KN+Nlog^{2}N) such that the error in the computed N-samples of the K-soliton vanishes as O(N^{-p}) where p is the order of convergence of the underlying one-step method. For fixed N, this algorithm outperforms the classical DT (CDT) algorithm which has a complexity of O(K^{2}N). We further present an extension of these algorithms to the general version of DT which allows one to add solitons to arbitrary profiles that are admissible as scattering potentials in the ZS problem. The general CDT and FDT algorithms have the same operational complexity as that of the K-soliton case and the order of convergence matches that of the underlying one-step method. A comparative study of these algorithms is presented through exhaustive numerical tests. PMID- 29347407 TI - Improved thermal lattice Boltzmann model for simulation of liquid-vapor phase change. AB - In this paper, an improved thermal lattice Boltzmann (LB) model is proposed for simulating liquid-vapor phase change, which is aimed at improving an existing thermal LB model for liquid-vapor phase change [S. Gong and P. Cheng, Int. J. Heat Mass Transfer 55, 4923 (2012)10.1016/j.ijheatmasstransfer.2012.04.037]. First, we emphasize that the replacement of ?.(lambda?T)/?.(lambda?T)rhoc_{V}rhoc_{V} with ?.(chi?T) is an inappropriate treatment for diffuse interface modeling of liquid-vapor phase change. Furthermore, the error terms ?_{t_{0}}(Tv)+?.(Tvv), which exist in the macroscopic temperature equation recovered from the previous model, are eliminated in the present model through a way that is consistent with the philosophy of the LB method. Moreover, the discrete effect of the source term is also eliminated in the present model. Numerical simulations are performed for droplet evaporation and bubble nucleation to validate the capability of the model for simulating liquid-vapor phase change. It is shown that the numerical results of the improved model agree well with those of a finite-difference scheme. Meanwhile, it is found that the replacement of ?.(lambda?T)/?.(lambda?T)rhoc_{V}rhoc_{V} with ?.(chi?T) leads to significant numerical errors and the error terms in the recovered macroscopic temperature equation also result in considerable errors. PMID- 29347408 TI - Instabilities in rapid directional solidification under weak flow. AB - We examine a rapidly solidifying binary alloy under directional solidification with nonequilibrium interfacial thermodynamics viz. the segregation coefficient and the liquidus slope are speed dependent and attachment-kinetic effects are present. Both of these effects alone give rise to (steady) cellular instabilities, mode S, and a pulsatile instability, mode P. We examine how weak imposed boundary-layer flow of magnitude |V| affects these instabilities. For small |V|, mode S becomes a traveling and the flow stabilizes (destabilizes) the interface for small (large) surface energies. For small |V|, mode P has a critical wave number that shifts from zero to nonzero giving spatial structure. The flow promotes this instability and the frequencies of the complex conjugate pairs each increase (decrease) with flow for large (small) wave numbers. These results are obtained by regular perturbation theory in powers of V far from the point where the neutral curves cross, but requires a modified expansion in powers of V^{1/3} near the crossing. A uniform composite expansion is then obtained valid for all small |V|. PMID- 29347409 TI - Bulk and local rheology in a dense and vibrated granular suspension. AB - In this paper, we investigate experimentally the dynamics of particles in dense granular suspensions when both shear and external vibrations are applied. We study in detail how vibrations affect particle reorganization at the local scale and modify the apparent rheology. The nonlocal nature of the rheology when no vibrations are applied is evidenced, in agreement with previous numerical studies from the literature. It is also shown that vibrations induce structural reorganizations, which tend to homogenize the system and cancel the nonlocal properties. PMID- 29347410 TI - Mode-coupling theory for active Brownian particles. AB - We present a mode-coupling theory (MCT) for the slow dynamics of two-dimensional spherical active Brownian particles (ABPs). The ABPs are characterized by a self propulsion velocity v_{0} and by their translational and rotational diffusion coefficients D_{t} and D_{r}, respectively. Based on the integration-through transients formalism, the theory requires as input only the equilibrium static structure factors of the passive system (where v_{0}=0). It predicts a nontrivial idealized-glass-transition diagram in the three-dimensional parameter space of density, self-propulsion velocity, and rotational diffusivity that arise because at high densities, the persistence length of active swimming l_{p}=v_{0}/D_{r} interferes with the interaction length l_{c} set by the caging of particles. While the low-density dynamics of ABPs is characterized by a single Peclet number Pe=v_{0}^{2}/D_{r}D_{t}, close to the glass transition the dynamics is found to depend on Pe and l_{p} separately. At fixed density, increasing the self propulsion velocity causes structural relaxation to speed up, while decreasing the persistence length slows down the relaxation. The active-MCT glass is a nonergodic state that is qualitatively different from the passive glass. In it, correlations of initial density fluctuations never fully decay, but also an infinite memory of initial orientational fluctuations is retained in the positions. PMID- 29347411 TI - Complete analysis of ensemble inequivalence in the Blume-Emery-Griffiths model. AB - We study inequivalence of canonical and microcanonical ensembles in the mean field Blume-Emery-Griffiths model. This generalizes previous results obtained for the Blume-Capel model. The phase diagram strongly depends on the value of the biquadratic exchange interaction K, the additional feature present in the Blume Emery-Griffiths model. At small values of K, as for the Blume-Capel model, lines of first- and second-order phase transitions between a ferromagnetic and a paramagnetic phase are present, separated by a tricritical point whose location is different in the two ensembles. At higher values of K the phase diagram changes substantially, with the appearance of a triple point in the canonical ensemble, which does not find any correspondence in the microcanonical ensemble. Moreover, one of the first-order lines that starts from the triple point ends in a critical point, whose position in the phase diagram is different in the two ensembles. This line separates two paramagnetic phases characterized by a different value of the quadrupole moment. These features were not previously studied for other models and substantially enrich the landscape of ensemble inequivalence, identifying new aspects that had been discussed in a classification of phase transitions based on singularity theory. Finally, we discuss ergodicity breaking, which is highlighted by the presence of gaps in the accessible values of magnetization at low energies: it also displays new interesting patterns that are not present in the Blume-Capel model. PMID- 29347412 TI - Observation of structural universality in disordered systems using bulk diffusion measurement. AB - We report on an experimental observation of classical diffusion distinguishing between structural universality classes of disordered systems in one dimension. Samples of hyperuniform and short-range disorder were designed, characterized by the statistics of the placement of micrometer-thin parallel permeable barriers, and the time-dependent diffusion coefficient was measured by NMR methods over three orders of magnitude in time. The relation between the structural exponent, characterizing disorder universality class, and the dynamical exponent of the diffusion coefficient is experimentally verified. The experimentally established relation between structure and transport exemplifies the hierarchical nature of structural complexity-dynamics are mainly determined by the universality class, whereas microscopic parameters affect the nonuniversal coefficients. These results open the way for noninvasive characterization of structural correlations in porous media, complex materials, and biological tissues via a bulk diffusion measurement. PMID- 29347413 TI - Off-diagonal expansion quantum Monte Carlo. AB - We propose a Monte Carlo algorithm designed to simulate quantum as well as classical systems at equilibrium, bridging the algorithmic gap between quantum and classical thermal simulation algorithms. The method is based on a decomposition of the quantum partition function that can be viewed as a series expansion about its classical part. We argue that the algorithm not only provides a theoretical advancement in the field of quantum Monte Carlo simulations, but is optimally suited to tackle quantum many-body systems that exhibit a range of behaviors from "fully quantum" to "fully classical," in contrast to many existing methods. We demonstrate the advantages, sometimes by orders of magnitude, of the technique by comparing it against existing state-of-the-art schemes such as path integral quantum Monte Carlo and stochastic series expansion. We also illustrate how our method allows for the unification of quantum and classical thermal parallel tempering techniques into a single algorithm and discuss its practical significance. PMID- 29347414 TI - Dynamical density functional theory analysis of the laning instability in sheared soft matter. AB - Using dynamical density functional theory (DDFT) methods we investigate the laning instability of a sheared colloidal suspension. The nonequilibrium ordering at the laning transition is driven by nonaffine particle motion arising from interparticle interactions. Starting from a DDFT which incorporates the nonaffine motion, we perform a linear stability analysis that enables identification of the regions of parameter space where lanes form. We illustrate our general approach by applying it to a simple one-component fluid of soft penetrable particles. PMID- 29347415 TI - Possible mechanism for aligning microscopic flexible filaments predicted using "caterpillar" hydrodynamics. AB - We use the "caterpillar" model for accurately calculating the inhomogeneous hydrodynamic friction along a microscopic slender cylindrical filaments using Oseen level hydrodynamics. The methodology is applied to study the motion of a flexible filament in a circularly polarized field. Our results predict that in dilute solution alignment occurs along the axis of the field. For electric fields, the strengths and frequencies required are deduced. These are experimentally accessible. We therefore propose that this is a practical method for aligning filaments such as microtubules and functionalized carbon nanotubes. PMID- 29347416 TI - Computational framework for particle and spin simulations based on the stochastic Galerkin method. AB - An implementation of the polynomial chaos expansion is introduced as a fast solver of the equations of beam and spin motion of charged particles in electromagnetic fields. We show that, based on the stochastic Galerkin method, our computational framework substantially reduces the required number of tracking calculations compared to the widely used Monte Carlo method. PMID- 29347417 TI - Exact solution of the critical Ising model with special toroidal boundary conditions. AB - The Ising model in two dimensions with special toroidal boundary conditions is analyzed. These boundary conditions, which we call duality-twisted boundary conditions, may be interpreted as inserting a specific defect line ("seam") in the system, along noncontractible circles of the cylinder, before closing it into a torus. We derive exact expressions for the eigenvalues of a transfer matrix for the critical ferromagnetic Ising model on the M*N square lattice wrapped on the torus with a specific defect line. As a result we have obtained analytically the partition function for the Ising model with such boundary conditions. In the case of infinitely long cylinders of circumference L with duality-twisted boundary conditions we obtain the asymptotic expansion of the free energy and the inverse correlation lengths. We find that the ratio of subdominant finite-size correction terms in the asymptotic expansion of the free energy and the inverse correlation lengths should be universal. We verify such universal behavior in the framework of a perturbating conformal approach by calculating the universal structure constant C_{n1n} for descendent states generated by the operator product expansion of the primary fields. For such states the calculations of an universal structure constants is a difficult task, since it involves knowledge of the four point correlation function, which in general is not fixed by conformal invariance except for some particular cases, including the Ising model. PMID- 29347418 TI - Preconditioned lattice Boltzmann method for steady flows: A noncascaded central moments-based approach. AB - We present a concise yet effective central-moments-based lattice Boltzmann method with an accelerated convergence to the steady state through preconditioning. It is demonstrated that the proposed scheme reduces to a slight modification of the unaccelerated one, as the preconditioning affects only the equilibrium state. Different from previous efforts carried out within the lattice Boltzmann community, the present scheme is built on an original model. In fact, the corresponding collision operator loses the pyramidal orchestrated nature that is typical of the cascaded scheme, hence we coin the name "noncascaded." Our model is very general, characterized by highly intelligible formulations, simple to implement, and it can be derived for any lattice velocity space. PMID- 29347419 TI - Diverging, but negligible power at Carnot efficiency: Theory and experiment. AB - We discuss the possibility of reaching the Carnot efficiency by heat engines (HEs) out of quasistatic conditions at nonzero power output. We focus on several models widely used to describe the performance of actual HEs. These models comprise quantum thermoelectric devices, linear irreversible HEs, minimally nonlinear irreversible HEs, HEs working in the regime of low-dissipation, overdamped stochastic HEs and an underdamped stochastic HE. Although some of these HEs can reach the Carnot efficiency at nonzero and even diverging power, the magnitude of this power is always negligible compared to the maximum power attainable in these systems. We provide conditions for attaining the Carnot efficiency in the individual models and explain practical aspects connected with reaching the Carnot efficiency at large power output. Furthermore, we show how our findings can be tested in practice using a standard Brownian HE realizable with available micromanipulation techniques. PMID- 29347420 TI - Bayesian inference with information content model check for Langevin equations. AB - The Bayesian data analysis framework has been proven to be a systematic and effective method of parameter inference and model selection for stochastic processes. In this work, we introduce an information content model check that may serve as a goodness-of-fit, like the chi^{2} procedure, to complement conventional Bayesian analysis. We demonstrate this extended Bayesian framework on a system of Langevin equations, where coordinate-dependent mobilities and measurement noise hinder the normal mean-squared displacement approach. PMID- 29347421 TI - Turing-like structures in a functional model of cortical spreading depression. AB - Cortical spreading depression (CSD) along with migraine waves and spreading depolarization events with stroke or injures are the front-line examples of extreme physiological behaviors of the brain cortex which manifest themselves via the onset and spreading of localized areas of neuronal hyperactivity followed by their depression. While much is known about the physiological pathways involved, the dynamical mechanisms of the formation and evolution of complex spatiotemporal patterns during CSD are still poorly understood, in spite of the number of modeling studies that have been already performed. Recently we have proposed a relatively simple mathematical model of cortical spreading depression which counts the effects of neurovascular coupling and cerebral blood flow redistribution during CSD. In the present study, we address the main dynamical consequences of newly included pathways, namely, the changes in the formation and propagation speed of the CSD front and the pattern formation features in two dimensions. Our most notable finding is that the combination of vascular-mediated spatial coupling with local regulatory mechanisms results in the formation of stationary Turing-like patterns during a CSD event. PMID- 29347422 TI - Periodicity in the autocorrelation function as a mechanism for regularly occurring zero crossings or extreme values of a Gaussian process. AB - The problem of zero crossings is of great historical prevalence and promises extensive application. The challenge is to establish precisely how the autocorrelation function or power spectrum of a one-dimensional continuous random process determines the density function of the intervals between the zero crossings of that process. This paper investigates the case where periodicities are incorporated into the autocorrelation function of a smooth process. Numerical simulations, and statistics about the number of crossings in a fixed interval, reveal that in this case the zero crossings segue between a random and deterministic point process depending on the relative time scales of the periodic and nonperiodic components of the autocorrelation function. By considering the Laplace transform of the density function, we show that incorporating correlation between successive intervals is essential to obtaining accurate results for the interval variance. The same method enables prediction of the density function tail in some regions, and we suggest approaches for extending this to cover all regions. In an ever-more complex world, the potential applications for this scale of regularity in a random process are far reaching and powerful. PMID- 29347423 TI - Rayleigh-Taylor instability in accelerated elastic-solid slabs. AB - We develop the linear theory for the asymptotic growth of the incompressible Rayleigh-Taylor instability of an accelerated solid slab of density rho_{2}, shear modulus G, and thickness h, placed over a semi-infinite ideal fluid of density rho_{1}_{l} given l, as well as its fluctuations encoded in the second cumulant _{l}^{c}. We establish scaling relations governing the behavior close to the boundary. We then give analytic results for the Brownian force model, in which the microscopic disorder for each degree of freedom is a random walk. Finally, we confirm these results with numerical simulations. To do this properly we elucidate the influence of discretization effects, which also confirms the assumptions entering into the scaling ansatz. This allows us to reach the scaling limit already for avalanches of moderate size. We find excellent agreement for the universal shape and its fluctuations, including all amplitudes. PMID- 29347439 TI - Quantum effects and quantum chaos in multidimensional tunneling. AB - The ground-state energy splitting due to tunneling in two-dimensional double wells of the form V(x,y)=(x^{2}-R^{2})^{2}/8R^{2}+x^{2} R^{2}/R^{2}gammay+omega^{2}/2y^{2} is calculated. Several results are reported. First, we give a systematic WKB expansion of the splitting in series in powers of R^{-2}, each term of the series being a finite polynomial in gamma^{2}. We find an ascending sequence of the values of the parameter gamma characterizing the curvature of the classical path, for which the successive corrections to the leading order vanish. This effect arises because curvature of the path and quantum nature of motion cancel each other; it does not appear for one dimensional double wells. Second, we find that for large curvatures, such as for those describing the proton transfer in a malonaldehyde and hydroxalate anion, this expansion is of no practical use. Thus, the WKB expansion is reordered to a strong coupling form, each term of the series in powers of R^{-2} being an infinite series in powers of gamma[over -]^{2}, gamma[over -]=gamma/R. Third, we find that the radius of convergence of the series is determined by the singularity at gamma[over -]_{s}=omega/2. At the singularity the system changes its character from being a double well to become a single well. Close to this singularity the classical action and its first quantum correction are found to be nonanalytic functions of gamma[over -], most likely of the form [1-(gamma[over ]/gamma[over -]_{s})^{2}]^{alpha}, where alpha=1/2 and alpha=-1/2 for the classical action and its first quantum correction, respectively. Since in the semiclassical regime of large R the splitting is exponentially dependent on the value of the classical action and its first quantum correction, close to the singularity we establish strong sensitivity of the splitting on slight variations of the parameter gamma[over -] entering the Hamiltonian linearly. PMID- 29347440 TI - Cooling beyond the boundary value in supercritical fluids under vibration. AB - Supercritical fluids when subjected to simultaneous quench and vibration have been known to cause various intriguing flow phenomena and instabilities depending on the relative direction of temperature gradient and vibration. Here we describe a surprising and interesting phenomenon wherein temperature in the fluid falls below the imposed boundary value when the walls are quenched and the direction of vibration is normal to the temperature gradient. We define these regions in the fluid as sink zones, because they act like sink for heat within the fluid domain. The formation of these zones is first explained using a one-dimensional (1D) analysis with acceleration in constant direction. Subsequently, the effect of various boundary conditions and the relative direction of the temperature gradient to acceleration are analyzed, highlighting the necessary conditions for the formation of sink zones. It is found that the effect of high compressibility and the action of self-weight (due to high acceleration) causes the temperature to change in the bulk besides the usual action of piston effect. This subsequently affects the overall temperature profile thereby leading to the formation of sink zones. Though the examined 1D cases differ from the current two dimensional (2D) cases, owing to the direction of acceleration being normal as compared to parallel in case of former, the explanations pertaining to 1D cases are judiciously utilized to elucidate the formation of sink zones in 2D supercritical fluids subjected to thermal quench and vibrational acceleration. The appearance of sink zones is found to be dependent on several factors such as proximity to the critical point and acceleration. A surface three-dimensional plot illustrating the effect of these parameters on onset time of sink zones is presented to further substantiate these arguments. PMID- 29347441 TI - Geometrical interpretation of dynamical phase transitions in boundary-driven systems. AB - Dynamical phase transitions are defined as nonanalytic points of the large deviation function of current fluctuations. We show that for boundary-driven systems, many dynamical phase transitions can be identified using the geometrical structure of an effective potential of a Hamiltonian, recovered from the macroscopic fluctuation theory description. Using this method we identify new dynamical phase transitions that could not be recovered using existing perturbative methods. Moreover, using the Hamiltonian picture, an experimental scheme is suggested to demonstrate an analog of dynamical phase transitions in linear, rather than exponential, time. PMID- 29347442 TI - Influence of ligand-receptor interactions on force-extension behavior within the freely jointed chain model. AB - We study the influence of receptor-ligand interactions on the force response of single polymer chains theoretically. The extension of the chain is modeled in terms of freely jointed chain or elastic freely jointed chain (EFJC) models. The situation involving noninteracting bonds is solved exactly, while effects of interactions are treated within a mean-field approximation. The form with shorter bonds governs the low force situation, while the form with longer bonds is relevant in the high force regime. We further discuss the accuracy of approximate relations, which were used to describe the response of the EFJC model. PMID- 29347443 TI - Microcanonical Szilard engines beyond the quasistatic regime. AB - We discuss the possibility of extracting energy from a single thermal bath using microcanonical Szilard engines operating in finite time. This extends previous works on the topic which are restricted to the quasistatic regime. The feedback protocol is implemented based on linear response predictions of the excess work. It is claimed that the underlying mechanism leading to energy extraction does not violate Liouville's theorem and preserves ergodicity throughout the cycle. We illustrate our results with several examples including an exactly solvable model. PMID- 29347444 TI - Theoretical study of the effect of pi^{+}-pi^{+} association in imidazolium ionic liquids at charged interfaces. AB - We develop an extended classical density-functional theory to describe clustering of imidazolium-based cations into linear chains, driven by pi-pi stacking. We find that the associating system displays a similar short-ranged structure to the completely dissociated fluid. We also construct a restricted primitive model for associating ionic species in an RTIL+solvent mixture. The double-layer formed in these systems exhibits strong overscreening by the cation chains, as expected. Significantly enhanced capacitance is also observed for the case where counterions are the associating species. The established density-functional method can be also used to describe polydisperse polyelectrolyte models. PMID- 29347445 TI - Mobility-induced persistent chimera states. AB - We study the dynamics of mobile, locally coupled identical oscillators in the presence of coupling delays. We find different kinds of chimera states in which coherent in-phase and antiphase domains coexist with incoherent domains. These chimera states are dynamic and can persist for long times for intermediate mobility values. We discuss the mechanisms leading to the formation of these chimera states in different mobility regimes. This finding could be relevant for natural and technological systems composed of mobile communicating agents. PMID- 29347446 TI - Diffusing-wave spectroscopy in a standard dynamic light scattering setup. AB - Diffusing-wave spectroscopy (DWS) extends dynamic light scattering measurements to samples with strong multiple scattering. DWS treats the transport of photons through turbid samples as a diffusion process, thereby making it possible to extract the dynamics of scatterers from measured correlation functions. The analysis of DWS data requires knowledge of the path length distribution of photons traveling through the sample. While for flat sample cells this path length distribution can be readily calculated and expressed in analytical form; no such expression is available for cylindrical sample cells. DWS measurements have therefore typically relied on dedicated setups that use flat sample cells. Here we show how DWS measurements, in particular DWS-based microrheology measurements, can be performed in standard dynamic light scattering setups that use cylindrical sample cells. To do so we perform simple random-walk simulations that yield numerical predictions of the path length distribution as a function of both the transport mean free path and the detection angle. This information is used in experiments to extract the mean-square displacement of tracer particles in the material, as well as the corresponding frequency-dependent viscoelastic response. An important advantage of our approach is that by performing measurements at different detection angles, the average path length through the sample can be varied. For measurements performed on a single sample cell, this gives access to a wider range of length and time scales than obtained in a conventional DWS setup. Such angle-dependent measurements also offer an important consistency check, as for all detection angles the DWS analysis should yield the same tracer dynamics, even though the respective path length distributions are very different. We validate our approach by performing measurements both on aqueous suspensions of tracer particles and on solidlike gelatin samples, for which we find our DWS-based microrheology data to be in good agreement with rheological measurements performed on the same samples. PMID- 29347447 TI - Modeling correlated bursts by the bursty-get-burstier mechanism. AB - Temporal correlations of time series or event sequences in natural and social phenomena have been characterized by power-law decaying autocorrelation functions with decaying exponent gamma. Such temporal correlations can be understood in terms of power-law distributed interevent times with exponent alpha and/or correlations between interevent times. The latter, often called correlated bursts, has recently been studied by measuring power-law distributed bursty trains with exponent beta. A scaling relation between alpha and gamma has been established for the uncorrelated interevent times, while little is known about the effects of correlated interevent times on temporal correlations. In order to study these effects, we devise the bursty-get-burstier model for correlated bursts, by which one can tune the degree of correlations between interevent times, while keeping the same interevent time distribution. We numerically find that sufficiently strong correlations between interevent times could violate the scaling relation between alpha and gamma for the uncorrelated case. A nontrivial dependence of gamma on beta is also found for some range of alpha. The implication of our results is discussed in terms of the hierarchical organization of bursty trains at various time scales. PMID- 29347448 TI - Infinite cascades of phase transitions in the classical Ising chain. AB - We report exact results on one of the best studied models in statistical physics: the classical antiferromagnetic Ising chain in a magnetic field. We show that the model possesses an infinite cascade of thermal phase transitions (also known as disorder lines or geometric phase transitions). The phase transition is signaled by a change of asymptotic behavior of the nonlocal string-string correlation functions when their monotonic decay becomes modulated by incommensurate oscillations. The transitions occur for rarefied (m-periodic) strings with arbitrary odd m. We propose a duality transformation which maps the Ising chain onto the m-leg Ising tube with nearest-neighbor couplings along the legs and the plaquette four-spin interactions of adjacent legs. Then the m-string correlation functions of the Ising chain are mapped onto the two-point spin-spin correlation functions along the legs of the m-leg tube. We trace the origin of these cascades of phase transitions to the lines of the Lee-Yang zeros of the Ising chain in m periodic complex magnetic field, allowing us to relate these zeros to the observable (and potentially measurable) quantities. PMID- 29347449 TI - Effective electrostatic interactions in colloid-nanoparticle mixtures. AB - Interparticle interactions and bulk properties of colloidal suspensions can be substantially modified by the addition of nanoparticles. Extreme asymmetries in size and charge between colloidal particles and nanoparticles present severe computational challenges to molecular-scale modeling of such complex systems. We present a statistical mechanical theory of effective electrostatic interactions that can greatly ease large-scale modeling of charged colloid-nanoparticle mixtures. By applying a sequential coarse-graining procedure, we show that a multicomponent mixture of charged colloids, nanoparticles, counterions, and coions can be mapped first onto a binary mixture of colloids and nanoparticles and then onto a one-component model of colloids alone. In a linear-response approximation, the one-component model is governed by a single effective pair potential and a one-body volume energy, whose parameters depend nontrivially on nanoparticle size, charge, and concentration. To test the theory, we perform molecular dynamics simulations of the two-component and one-component models and compute structural properties. For moderate electrostatic couplings, colloid colloid radial distribution functions and static structure factors agree closely between the two models, validating the sequential coarse-graining approach. Nanoparticles of sufficient charge and concentration enhance screening of electrostatic interactions, weakening correlations between charged colloids and destabilizing suspensions, consistent with experiments. PMID- 29347450 TI - Quantum phase transition in an effective three-mode model of interacting bosons. AB - In this work we study an effective three-mode model describing interacting bosons. These bosons can be considered as exciton-polaritons in a semiconductor microcavity at the magic angle. This model exhibits quantum phase transition (QPT) when the parameters of the corresponding Hamiltonian are continuously varied. The properties of the Hamiltonian spectrum (e.g., the distance between two adjacent energy levels) and the phase space structure of the thermodynamic limit of the model are used to indicate QPT. The relation between spectral properties of the Hamiltonian and the corresponding classical frame of the thermodynamic limit of the model is established as indicative of QPT. The average number of bosons in a specific mode and the entanglement properties of the ground state as functions of the parameters are used to characterize the order of the transition and also to construct a phase diagram. Finally, we verify our results for experimental data obtained for a setting of exciton-polaritons in a semiconductor microcavity. PMID- 29347451 TI - Computational investigation of Tb(III) ion line intensities in single-bubble sonoluminescence. AB - We perform a computational fluid dynamics simulation of trivalent terbium [Tb(III)] ion line emissions from single-bubble sonoluminescence (SBSL). Our simulation includes dynamic boundary conditions as well as the effects of gas properties and quenching by species, such as nitrite ion (NO_{2}^{-}). Simulation results demonstrate that when the maximum temperature inside a dimly luminescing bubble is relatively low, emission peaks from excited Tb(III) ions are prominent within the emission spectra. As the maximum temperature of the bubble increases, emission peaks of Tb(III) ions fade away relative to the continuum background emission. These calculations match observations of Tb(III) line emissions from SBSL occurring in aqueous solutions of terbium nitrate [Tb(NO_{3})_{3}] under an argon gas atmosphere. The evolution of the radiation energy spectrum over time for sonoluminescing bubbles provides a clear mechanism explaining Tb(III) emission peaks gradually merging into the continuous background emission as the radiation power increases. PMID- 29347452 TI - Incorporating Born solvation energy into the three-dimensional Poisson-Nernst Planck model to study ion selectivity in KcsA K^{+} channels. AB - Potassium channels are much more permeable to potassium than sodium ions, although potassium ions are larger and both carry the same positive charge. This puzzle cannot be solved based on the traditional Poisson-Nernst-Planck (PNP) theory of electrodiffusion because the PNP model treats all ions as point charges, does not incorporate ion size information, and therefore cannot discriminate potassium from sodium ions. The PNP model can qualitatively capture some macroscopic properties of certain channel systems such as current-voltage characteristics, conductance rectification, and inverse membrane potential. However, the traditional PNP model is a continuum mean-field model and has no or underestimates the discrete ion effects, in particular the ion solvation or self energy (which can be described by Born model). It is known that the dehydration effect (closely related to ion size) is crucial to selective permeation in potassium channels. Therefore, we incorporated Born solvation energy into the PNP model to account for ion hydration and dehydration effects when passing through inhomogeneous dielectric channel environments. A variational approach was adopted to derive a Born-energy-modified PNP (BPNP) model. The model was applied to study a cylindrical nanopore and a realistic KcsA channel, and three-dimensional finite element simulations were performed. The BPNP model can distinguish different ion species by ion radius and predict selectivity for K^{+} over Na^{+} in KcsA channels. Furthermore, ion current rectification in the KcsA channel was observed by both the PNP and BPNP models. The I-V curve of the BPNP model for the KcsA channel indicated an inward rectifier effect for K^{+} (rectification ratio of ~3/2) but indicated an outward rectifier effect for Na^{+} (rectification ratio of ~1/6). PMID- 29347453 TI - Tricriticality in the q-neighbor Ising model on a partially duplex clique. AB - We analyze a modified kinetic Ising model, a so-called q-neighbor Ising model, with Metropolis dynamics [Phys. Rev. E 92, 052105 (2015)PLEEE81539 375510.1103/PhysRevE.92.052105] on a duplex clique and a partially duplex clique. In the q-neighbor Ising model each spin interacts only with q spins randomly chosen from its whole neighborhood. In the case of a duplex clique the change of a spin is allowed only if both levels simultaneously induce this change. Due to the mean-field-like nature of the model we are able to derive the analytic form of transition probabilities and solve the corresponding master equation. The existence of the second level changes dramatically the character of the phase transition. In the case of the monoplex clique, the q-neighbor Ising model exhibits a continuous phase transition for q=3, discontinuous phase transition for q>=4, and for q=1 and q=2 the phase transition is not observed. On the other hand, in the case of the duplex clique continuous phase transitions are observed for all values of q, even for q=1 and q=2. Subsequently we introduce a partially duplex clique, parametrized by r?[0,1], which allows us to tune the network from monoplex (r=0) to duplex (r=1). Such a generalized topology, in which a fraction r of all nodes appear on both levels, allows us to obtain the critical value of r=r^{*}(q) at which a tricriticality (switch from continuous to discontinuous phase transition) appears. PMID- 29347454 TI - Noise-driven neuromorphic tuned amplifier. AB - We study a simple stochastic model of neuronal excitatory and inhibitory interactions. The model is defined on a directed lattice and internodes couplings are modulated by a nonlinear function that mimics the process of synaptic activation. We prove that such a system behaves as a fully tunable amplifier: the endogenous component of noise, stemming from finite size effects, seeds a coherent (exponential) amplification across the chain generating giant oscillations with tunable frequencies, a process that the brain could exploit to enhance, and eventually encode, different signals. On a wider perspective, the characterized amplification process could provide a reliable pacemaking mechanism for biological systems. The device extracts energy from the finite size bath and operates as an out of equilibrium thermal machine, under stationary conditions. PMID- 29347455 TI - Response of jammed packings to thermal fluctuations. AB - We focus on the response of mechanically stable (MS) packings of frictionless, bidisperse disks to thermal fluctuations, with the aim of quantifying how nonlinearities affect system properties at finite temperature. In contrast, numerous prior studies characterized the structural and mechanical properties of MS packings of frictionless spherical particles at zero temperature. Packings of disks with purely repulsive contact interactions possess two main types of nonlinearities, one from the form of the interaction potential (e.g., either linear or Hertzian spring interactions) and one from the breaking (or forming) of interparticle contacts. To identify the temperature regime at which the contact breaking nonlinearities begin to contribute, we first calculated the minimum temperatures T_{cb} required to break a single contact in the MS packing for both single- and multiple-eigenmode perturbations of the T=0 MS packing. We find that the temperature required to break a single contact for equal velocity-amplitude perturbations involving all eigenmodes approaches the minimum value obtained for a perturbation in the direction connecting disk pairs with the smallest overlap. We then studied deviations in the constant volume specific heat C[over -]_{V} and deviations of the average disk positions Deltar from their T=0 values in the temperature regime T_{C[over -]_{V}}100 for linear spring interactions is independent of system size. This result emphasizes that contact-breaking nonlinearities are dominant over form nonlinearities in the low-temperature range T_{cb}1 case and in the p<0 case. The scaling of the optimal mean cost with the number of points is N^{-p/2} for the assignment and N^{-p} for the matching when p>1, whereas in both cases it is a constant when p<0. Finally, our predictions are compared with the results of numerical simulations. PMID- 29347464 TI - Erosion and deposition processes in surface granular flows. AB - We report on experiments aiming at characterizing erosion and deposition processes on a tilted granular bed. We investigate the existence of the neutral angle, that is, the critical angle at which erosion exactly balances accretion after the passage of a granular avalanche of a finite mass. Experiments show in particular that the neutral angle depends on both avalanche mass and shape but is rather insensitive to the bed length. This result strongly suggests that the effective friction between the static and mobile granular phases cannot be taken as an intrinsic property that is only material dependent but should be considered a flow-dependent property. Interestingly, for a given avalanche mass, the net erosion rate increases linearly with the angular deviation from the neutral angle. We also compare our data with the predictions of the erosion-deposition model introduced by Bouchaud, Cates, Ravi Prakash, and Edwards (BCRE) [J. Phys. I 4, 1283 (1994)JPGCE81155-430410.1051/jp1:1994195]. We show that the predictions drawn from the modified version of the BCRE model proposed by Boutreux and de Gennes, in which the local erosion rate between the static and mobile phases is independent of the flow thickness, are in remarkable agreement with the experimental results. PMID- 29347465 TI - Roles of energy eigenstates and eigenvalues in equilibration of isolated quantum systems. AB - We show that eigenenergies and energy eigenstates play different roles in the equilibration process of an isolated quantum system. Their roles are revealed numerically by exchanging the eigenenergies between an integrable model and a nonintegrable model. We find that the structure of eigenenergies of a nonintegrable model characterized by nondegeneracy ensures that quantum revival occurs rarely whereas the energy eigenstates of a nonintegrable model suppress the fluctuations for the equilibrated quantum state. Our study is aided with a quantum entropy that describes how randomly a wave function is distributed in quantum phase space. We also demonstrate with this quantum entropy the validity of Berry's conjecture for energy eigenstates. This implies that the energy eigenstates of a nonintegrable model appear indeed random. PMID- 29347466 TI - Intermittency and emergence of coherent structures in wave turbulence of a vibrating plate. AB - We report numerical investigations of wave turbulence in a vibrating plate. The possibility to implement advanced measurement techniques and long-time numerical simulations makes this system extremely valuable for wave turbulence studies. The purely 2D character of dynamics of the elastic plate makes it much simpler to handle compared to much more complex 3D physical systems that are typical of geo- and astrophysical issues (ocean surface or internal waves, magnetized plasmas or strongly rotating and/or stratified flows). When the forcing is small the observed wave turbulence is consistent with the predictions of the weak turbulent theory. Here we focus on the case of stronger forcing for which coherent structures can be observed. These structures look similar to the folds and D cones that are commonly observed for strongly deformed static thin elastic sheets (crumpled paper) except that they evolve dynamically in our forced system. We describe their evolution and show that their emergence is associated with statistical intermittency (lack of self similarity) of strongly nonlinear wave turbulence. This behavior is reminiscent of intermittency in Navier-Stokes turbulence. Experimental data show hints of the weak to strong turbulence transition. However, due to technical limitations and dissipation, the strong nonlinear regime remains out of reach of experiments and therefore has been explored numerically. PMID- 29347467 TI - Increased persistence via asynchrony in oscillating ecological populations with long-range interaction. AB - Understanding the influence of the structure of a dispersal network on the species persistence and modeling a realistic species dispersal in nature are two central issues in spatial ecology. A realistic dispersal structure which favors the persistence of interacting ecological systems was studied [M. D. Holland and A. Hastings, Nature (London) 456, 792 (2008)NATUAS0028-083610.1038/nature07395], where it was shown that a randomization of the structure of a dispersal network in a metapopulation model of prey and predator increases the species persistence via clustering, prolonged transient dynamics, and amplitudes of population fluctuations. In this paper, by contrast, we show that a deterministic network topology in a metapopulation can also favor asynchrony and prolonged transient dynamics if species dispersal obeys a long-range interaction governed by a distance-dependent power law. To explore the effects of power-law coupling, we take a realistic ecological model, namely, the Rosenzweig-MacArthur model in each patch (node) of the network of oscillators, and show that the coupled system is driven from synchrony to asynchrony with an increase in the power-law exponent. Moreover, to understand the relationship between species persistence and variations in power-law exponent, we compute a correlation coefficient to characterize cluster formation, a synchrony order parameter, and median predator amplitude. We further show that smaller metapopulations with fewer patches are more vulnerable to extinction as compared to larger metapopulations with a higher number of patches. We believe that the present work improves our understanding of the interconnection between the random network and the deterministic network in theoretical ecology. PMID- 29347468 TI - Hypernetted-chain-like closure of Ornstein-Zernike equation in multibody dissipative particle dynamics. AB - We have derived a hypernetted-chain-like (HNC-like) approximate closure of the Ornstein-Zernike equation for multibody dissipative particle dynamics (MDPD) system in which the classic closures are not directly practicable. We first point out that the Percus's method is applicable to MDPD system in which particles interact with a density-dependent potential. And then an HNC-like closure is derived using Percus's idea and the saddle-point approximation of particle free energy. This HNC-like closure is compared with results of previous researchers, and in many cases, it demonstrates better agreement with computer simulation results. The HNC-like closure is used to predict the cluster crystallization in MDPD. We determine whether the cluster crystallization will happen in a system utilizing the widely applicable Hansen-Verlet freezing criterion and by observing the radial distribution function. The conclusions drawn from the results of the HNC-like closure are in agreement with computer simulation results. We evaluate different weight functions to determine whether they are prone to cluster crystallization. A new effective density-dependent pairwise potential is also proposed to help to explain the tendency to cluster crystallization of MDPD systems. PMID- 29347469 TI - Quantum adiabatic protocols using emergent local Hamiltonians. AB - We present two applications of emergent local Hamiltonians to speed up quantum adiabatic protocols for isolated noninteracting and weakly interacting fermionic systems in one-dimensional lattices. We demonstrate how to extract maximal work from initial band-insulating states, and how to adiabatically transfer systems from linear and harmonic traps into box traps. Our protocols consist of two stages. The first one involves a free expansion followed by a quench to an emergent local Hamiltonian. In the second stage, the emergent local Hamiltonian is "turned off" quasistatically. For the adiabatic transfer from a harmonic trap, we consider both zero- and nonzero-temperature initial states. PMID- 29347470 TI - Microstructure as a function of the grain size distribution for packings of frictionless disks: Effects of the size span and the shape of the distribution. AB - This article presents a numerical study of the effects of grain size distribution (GSD) on the microstructure of two-dimensional packings of frictionless disks. The GSD is described by a power law with two parameters controlling the size span and the shape of the distribution. First, several samples are built for each combination of these parameters. Then, by means of contact dynamics simulations, the samples are densified in oedometric conditions and sheared in a simple shear configuration. The microstructure is analyzed in terms of packing fraction, local ordering, connectivity, and force transmission properties. It is shown that the microstructure is notoriously affected by both the size span and the shape of the GSD. These findings confirm recent observations regarding the size span of the GSD and extend previous works by describing the effects of the GSD shape. Specifically, we find that if the GSD shape is varied by increasing the proportion of small grains by a certain amount, it is possible to increase the packing fraction, increase coordination, and decrease the proportion of floating particles. Thus, by carefully controlling the GSD shape, it is possible to obtain systems that are denser and better connected, probably increasing the system's robustness and optimizing important strength properties such as stiffness, cohesion, and fragmentation susceptibility. PMID- 29347471 TI - Linear-shear-current modified Schrodinger equation for gravity waves in finite water depth. AB - A nonlinear Schrodinger equation for the propagation of two-dimensional surface gravity waves on linear shear currents in finite water depth is derived. In the derivation, linear shear currents are assumed to be a linear combination of depth uniform currents and constant vorticity. Therefore, the equation includes the combined effects of depth-uniform currents and constant vorticity. Next, using the equation, the properties of the modulational instability of gravity waves on linear shear currents are investigated. It is showed that shear currents significantly modify the modulational instability properties of weakly nonlinear waves. Furthermore, the influence of linear shear currents on Peregrine breather which can be seen as a prototype of freak waves is also studied. It is demonstrated that depth-uniform opposing currents can reduce the breather extension in both the time and spatial domain in intermediate water depth, but following currents has the adverse impact, indicating that a wave packets with freak waves formed on following currents contain more hazardous waves in finite water depth. However, the corresponding and coexisting vorticity can counteract the influence of currents. Additionally, if the water depth is deep enough, shear currents have negligible effect on the characteristics of Peregrine breathers. PMID- 29347472 TI - Extinction dynamics from metastable coexistences in an evolutionary game. AB - Deterministic evolutionary game dynamics can lead to stable coexistences of different types. Stochasticity, however, drives the loss of such coexistences. This extinction is usually accompanied by population size fluctuations. We investigate the most probable extinction trajectory under such fluctuations by mapping a stochastic evolutionary model to a problem of classical mechanics using the Wentzel-Kramers-Brillouin (WKB) approximation. Our results show that more abundant types in a coexistence may be more likely to go extinct first, in good agreement with previous results. The distance between the coexistence and extinction points is not a good predictor of extinction either. Instead, the WKB method correctly predicts the type going extinct first. PMID- 29347473 TI - Visual evaluation of surface anchoring strength by electrohydrodynamic convection of a nematic liquid crystal. AB - Visual evaluation of the surface anchoring energies in a nematic liquid crystal (LC) cell is characterized by the direction of the convection roll pattern that appears in the low-frequency conduction regime. The convection roll pattern in a twisted nematic LC (TNLC) cell is oriented perpendicular to the midplane LC director dominating the direction of convection flow, and its direction is determined by the relative surface anchoring energy between two surface boundaries. Thus the direction of the roll pattern generated at the TNLC cell with asymmetric LC alignment layers can provide information on the surface anchoring energies at the two boundaries. We demonstrate a method for determining the two anchoring energies through a measured midplane LC director applied to the Ericksen-Leslie equation. PMID- 29347474 TI - Space-time-modulated stochastic processes. AB - Starting from the physical problem associated with the Lorentzian transformation of a Poisson-Kac process in inertial frames, the concept of space-time-modulated stochastic processes is introduced for processes possessing finite propagation velocity. This class of stochastic processes provides a two-way coupling between the stochastic perturbation acting on a physical observable and the evolution of the physical observable itself, which in turn influences the statistical properties of the stochastic perturbation during its evolution. The definition of space-time-modulated processes requires the introduction of two functions: a nonlinear amplitude modulation, controlling the intensity of the stochastic perturbation, and a time-horizon function, which modulates its statistical properties, providing irreducible feedback between the stochastic perturbation and the physical observable influenced by it. The latter property is the peculiar fingerprint of this class of models that makes them suitable for extension to generic curved-space times. Considering Poisson-Kac processes as prototypical examples of stochastic processes possessing finite propagation velocity, the balance equations for the probability density functions associated with their space-time modulations are derived. Several examples highlighting the peculiarities of space-time-modulated processes are thoroughly analyzed. PMID- 29347475 TI - Micromechanical model for protein materials: From macromolecules to macroscopic fibers. AB - We propose a model for the mechanical behavior of protein materials. Based on a limited number of experimental macromolecular parameters (persistence and contour length) we obtain the macroscopic behavior of keratin fibers (human, cow, and rabbit hair), taking into account the damage and residual stretches effects that are fundamental in many functions of life. We also show the capability of our approach to describe the main dissipation and permanent strain effects observed in the more complex spider silk fibers. The comparison between our results and the data obtained experimentally from cyclic tests demonstrates that our model is robust and is able to reproduce with a remarkable accuracy the experimental behavior of all protein materials we tested. PMID- 29347476 TI - Avoided level crossings in an elliptic billiard. AB - In an elliptic billiard, we find avoided level crossings taking place over wide ranges, which are of a Demkov type for generations of eigenfunctions localized on an islands chain and its pair unstable periodic orbit. For a proof of the existence of avoided level crossings, first, we show that the quantized eigenvalue of the unstable periodic orbit, obtained by the Einstein-Brillouin Keller quantization rule, passes the eigenvalues of bouncing-ball modes localized on the unstable periodic orbit after Demkov type avoided level crossings so that pairs of bouncing-ball modes are sequentially generated. Next, by using a perturbed Hamiltonian, we show that off-diagonal elements in Hamiltonian are nonzero, which give rise to an interaction between two eigenfunctions. Last, we verify that the observed phenomenon is Fermi resonance: that is, the quantum number difference of two normal modes equals the periodic orbits, where eigenfunctions are localized after an avoided level crossing. PMID- 29347477 TI - Early warning signal for interior crises in excitable systems. AB - The ability to reliably predict critical transitions in dynamical systems is a long-standing goal of diverse scientific communities. Previous work focused on early warning signals related to local bifurcations (critical slowing down) and nonbifurcation-type transitions. We extend this toolbox and report on a characteristic scaling behavior (critical attractor growth) which is indicative of an impending global bifurcation, an interior crisis in excitable systems. We demonstrate our early warning signal in a conceptual climate model as well as in a model of coupled neurons known to exhibit extreme events. We observed critical attractor growth prior to interior crises of chaotic as well as strange nonchaotic attractors. These observations promise to extend the classes of transitions that can be predicted via early warning signals. PMID- 29347478 TI - Chaotic behavior in Casimir oscillators: A case study for phase-change materials. AB - Casimir forces between material surfaces at close proximity of less than 200 nm can lead to increased chaotic behavior of actuating devices depending on the strength of the Casimir interaction. We investigate these phenomena for phase change materials in torsional oscillators, where the amorphous to crystalline phase transitions lead to transitions between high and low Casimir force and torque states, respectively, without material compositions. For a conservative system bifurcation curve and Poincare maps analysis show the absence of chaotic behavior but with the crystalline phase (high force-torque state) favoring more unstable behavior and stiction. However, for a nonconservative system chaotic behavior can take place introducing significant risk for stiction, which is again more pronounced for the crystalline phase. The latter illustrates the more general scenario that stronger Casimir forces and torques increase the possibility for chaotic behavior. The latter is making it impossible to predict whether stiction or stable actuation will occur on a long-term basis, and it is setting limitations in the design of micronano devices operating at short-range nanoscale separations. PMID- 29347479 TI - Strength distribution of large unidirectional composite patches with realistic load sharing. AB - Monte Carlo simulations of the failure of unidirectional fiber composites in a plane transverse to the fiber direction are performed on much larger patches than in previous works, assuming a realistic load redistribution scheme from broken to intact fibers. Computational effort involved in these simulations is substantially reduced using an algorithm based on the quadtree data structure. The empirical strength distribution obtained from the simulations has a weak-link character, regardless of the variability in fiber strengths. The empirical strength distribution is well captured by a probabilistic model based on the growth of a tight cluster of fiber breaks. It is also well captured by regarding composite patch failure as the failure of the weakest equal load-sharing bundle of a certain size, following Curtin [Phys. Rev. Lett. 80, 1445 (1998)PRLTAO0031 900710.1103/PhysRevLett.80.1445]. The approximate coincidence of these two predictions identifies the dominant failure mechanism underlying Curtin's empirical scaling relationship. PMID- 29347480 TI - Effect of mobility ratio on interaction between the fingers in unstable growth processes. AB - We investigate interactions between thin fingers formed as a result of an instability of an advancing front in growth processes. We show that the fingers can both attract and repel each other, depending on their lengths and the mobility ratio between the invading and displaced phase. To understand the origin of these interactions we introduce a simple resistor model of the fingers. The predictions of the model are then compared to the numerical simulations of two unstable growth processes: dissolution of partially cemented rock fracture and viscous fingering in a regular network of channels. PMID- 29347481 TI - Effective optimization using sample persistence: A case study on quantum annealers and various Monte Carlo optimization methods. AB - We present and apply a general-purpose, multistart algorithm for improving the performance of low-energy samplers used for solving optimization problems. The algorithm iteratively fixes the value of a large portion of the variables to values that have a high probability of being optimal. The resulting problems are smaller and less connected, and samplers tend to give better low-energy samples for these problems. The algorithm is trivially parallelizable since each start in the multistart algorithm is independent, and could be applied to any heuristic solver that can be run multiple times to give a sample. We present results for several classes of hard problems solved using simulated annealing, path-integral quantum Monte Carlo, parallel tempering with isoenergetic cluster moves, and a quantum annealer, and show that the success metrics and the scaling are improved substantially. When combined with this algorithm, the quantum annealer's scaling was substantially improved for native Chimera graph problems. In addition, with this algorithm the scaling of the time to solution of the quantum annealer is comparable to the Hamze-de Freitas-Selby algorithm on the weak-strong cluster problems introduced by Boixo et al. Parallel tempering with isoenergetic cluster moves was able to consistently solve three-dimensional spin glass problems with 8000 variables when combined with our method, whereas without our method it could not solve any. PMID- 29347482 TI - Evolutionary games combining two or three pair coordinations on a square lattice. AB - We study multiagent logit-rule-driven evolutionary games on a square lattice whose pair interactions are composed of a maximal number of nonoverlapping elementary coordination games describing Ising-type interactions between just two of the available strategies. Using Monte Carlo simulations we investigate the macroscopic noise-level-dependent behavior of the two- and three-pair games and the critical properties of the continuous phase transtitions these systems exhibit. The four-strategy game is shown to be equivalent to a system that consists of two independent and identical Ising models. PMID- 29347483 TI - Quantum fidelity approach to the ground-state properties of the one-dimensional axial next-nearest-neighbor Ising model in a transverse field. AB - In this work we analyze the ground-state properties of the s=1/2 one-dimensional axial next-nearest-neighbor Ising model in a transverse field using the quantum fidelity approach. We numerically determined the fidelity susceptibility as a function of the transverse field B_{x} and the strength of the next-nearest neighbor interaction J_{2}, for systems of up to 24 spins. We also examine the ground-state vector with respect to the spatial ordering of the spins. The ground state phase diagram shows ferromagnetic, floating, and <2,2> phases, and we predict an infinite number of modulated phases in the thermodynamic limit (L >infinity). Paramagnetism only occurs for larger magnetic fields. The transition lines separating the modulated phases seem to be of second order, whereas the line between the floating and the <2,2> phases is possibly of first order. PMID- 29347484 TI - Partial inertia induces additional phase transition in the majority vote model. AB - Explosive (i.e., discontinuous) transitions have aroused great interest by manifesting in distinct systems, such as synchronization in coupled oscillators, percolation regime, absorbing phase transitions, and more recently, the majority vote model with inertia. In the latter, the model rules are slightly modified by the inclusion of a term depending on the local spin (an inertial term). In such a case, Chen et al. [Phys Rev. E 95, 042304 (2017)2470 004510.1103/PhysRevE.95.042304] have found that relevant inertia changes the nature of the phase transition in complex networks, from continuous to discontinuous. Here we give a further step by embedding inertia only in vertices with degree larger than a threshold value k^{*}, being the mean system degree and k^{*} the fraction restriction. Our results, from mean-field analysis and extensive numerical simulations, reveal that an explosive transition is presented in both homogeneous and heterogeneous structures for small and intermediate k^{*}'s. Otherwise, a large restriction can sustain a discontinuous transition only in the heterogeneous case. This shares some similarities with recent results for the Kuramoto model [Phys. Rev. E 91, 022818 (2015)PLEEE81539 375510.1103/PhysRevE.91.022818]. Surprisingly, intermediate restriction and large inertia are responsible for the emergence of an extra phase, in which the system is partially synchronized and the classification of phase transition depends on the inertia and the lattice topology. In this case, the system exhibits two phase transitions. PMID- 29347485 TI - Mixing and transport from combined stretching-and-folding and cutting-and shuffling. AB - While structures and bifurcations controlling tracer particle transport and mixing have been studied extensively for systems with only stretching-and folding, and to a lesser extent for systems with only cutting-and-shuffling, few studies have considered systems with a combination of both. We demonstrate two bifurcations for nonmixing islands associated with elliptic periodic points that only occur in systems with combined cutting-and-shuffling and stretching-and folding, using as an example a map approximating biaxial rotation of a less-than half-full spherical granular tumbler. First, we characterize a bifurcation of elliptic island containment, from containment by manifolds associated with hyperbolic periodic points to containment by cutting line tangency. As a result, the maximum size of the nonmixing region occurs when the island is at the bifurcation point. We also demonstrate a bifurcation where periodic points are annihilated by the cutting-and-shuffling action. Chains of elliptic and hyperbolic periodic points that arise when invariant tori surrounding an elliptic point break up [according to Kolmogorov-Arnold-Moser (KAM) theory] can annihilate when they meet a cutting line. Consequently, the Poincare index (a topological invariant of smooth systems) is not preserved. PMID- 29347486 TI - Electrostatic double-layer interaction between stacked charged bilayers. AB - The inapplicability of the DLVO theory to multilayered anionic bilayers is found in terms of the co-ion-valence dependence of the lamellar repeat distance. Most of the added salt is expelled from the interlamellar space to the bulk due to the Gibbs-Donnan effect on multiple bilayers with the bulk. The electrostatic double layer interaction is well expressed by the formula recently proposed by Trefalt. The osmotic pressure due to the expelled ions, rather than the van der Waals interaction, is the main origin of the attractive force between the bilayers. PMID- 29347487 TI - Nonstationary Markovian replication process causing diverse diffusions. AB - We introduce a single generative mechanism that can be used to describe diverse nonstationary diffusions. A nonstationary Markovian replication process for steps is considered for which we derive analytically the time evolution of the probability distribution of the walker's displacement and the generalized telegrapher equation with time-varying coefficients, and we find that diffusivity can be determined by temporal changes of replication of an immediate step. By controlling the replications, we realize diverse diffusions such as alternating diffusion, superdiffusion, subdiffusion, and marginal diffusion, which originate from oscillating, increasing, decreasing, and slowly increasing or decreasing replications with time, respectively. PMID- 29347488 TI - Numerical calculation on a two-step subdiffusion behavior of lateral protein movement in plasma membranes. AB - A two-step subdiffusion behavior of lateral movement of transmembrane proteins in plasma membranes has been observed by using single-molecule experiments. A nested double-compartment model where large compartments are divided into several smaller ones has been proposed in order to explain this observation. These compartments are considered to be delimited by membrane-skeleton "fences" and membrane-protein "pickets" bound to the fences. We perform numerical simulations of a master equation using a simple two-dimensional lattice model to investigate the heterogeneous diffusion dynamics behavior of transmembrane proteins within plasma membranes. We show that the experimentally observed two-step subdiffusion process can be described using fence and picket models combined with decreased local diffusivity of transmembrane proteins in the vicinity of the pickets. This allows us to explain the two-step subdiffusion behavior without explicitly introducing nested double compartments. PMID- 29347489 TI - Entropy of level-cut random Gaussian structures at different volume fractions. AB - Cutting random Gaussian fields at a given level can create a variety of morphologically different two- or several-phase structures that have often been used to describe physical systems. The entropy of such structures depends on the covariance function of the generating Gaussian random field, which in turn depends on its spectral density. But the entropy of level-cut structures also depends on the volume fractions of different phases, which is determined by the selection of the cutting level. This dependence has been neglected in earlier work. We evaluate the entropy of several lattice models to show that, even in the cases of strongly coupled systems, the dependence of the entropy of level-cut structures on molar fractions of the constituents scales with the simple ideal noninteracting system formula. In the last section, we discuss the application of the results to binary or ternary fluids and microemulsions. PMID- 29347490 TI - Free-energy barriers for crystal nucleation from fluid phases. AB - Monte Carlo simulations of crystal nuclei coexisting with the fluid phase in thermal equilibrium in finite volumes are presented and analyzed, for fluid densities from dense melts to the vapor. Generalizing the lever rule for two phase coexistence in the canonical ensemble to finite volume, "measurements" of the nucleus volume together with the pressure and chemical potential of the surrounding fluid allows us to extract the surface free energy of the nucleus. Neither the knowledge of the (in general nonspherical) nucleus shape nor of the angle-dependent interface tension is required for this task. The feasibility of the approach is demonstrated for a variant of the Asakura-Oosawa model for colloid-polymer mixtures, which form face-centered cubic colloidal crystals. For a polymer to colloid size ratio of 0.15, the colloid packing fraction in the fluid phase can be varied from melt values to zero by the variation of an effective attractive potential between the colloids. It is found that the approximation of spherical crystal nuclei often underestimates actual nucleation barriers significantly. Nucleation barriers are found to scale as DeltaF^{*}=(4pi/3)^{1/3}gamma[over -](V^{*})^{2/3}+const with the nucleus volume V^{*}, and the effective surface tension gamma[over -] that accounts implicitly for the nonspherical shape can be precisely estimated. PMID- 29347491 TI - Broadening of cyclotron resonance conditions in the relativistic interaction of an intense laser with overdense plasmas. AB - The interaction of dense plasmas with an intense laser under a strong external magnetic field has been investigated. When the cyclotron frequency for the ambient magnetic field is higher than the laser frequency, the laser's electromagnetic field is converted to the whistler mode that propagates along the field line. Because of the nature of the whistler wave, the laser light penetrates into dense plasmas with no cutoff density, and produces superthermal electrons through cyclotron resonance. It is found that the cyclotron resonance absorption occurs effectively under the broadened conditions, or a wider range of the external field, which is caused by the presence of relativistic electrons accelerated by the laser field. The upper limit of the ambient field for the resonance increases in proportion to the square root of the relativistic laser intensity. The propagation of a large-amplitude whistler wave could raise the possibility for plasma heating and particle acceleration deep inside dense plasmas. PMID- 29347492 TI - Elucidating fluctuating diffusivity in center-of-mass motion of polymer models with time-averaged mean-square-displacement tensor. AB - There have been increasing reports that the diffusion coefficient of macromolecules depends on time and fluctuates randomly. Here a method is developed to elucidate this fluctuating diffusivity from trajectory data. Time averaged mean-square displacement (MSD), a common tool in single-particle tracking (SPT) experiments, is generalized to a second-order tensor with which both magnitude and orientation fluctuations of the diffusivity can be clearly detected. This method is used to analyze the center-of-mass motion of four fundamental polymer models: the Rouse model, the Zimm model, a reptation model, and a rigid rodlike polymer. It is found that these models exhibit distinctly different types of magnitude and orientation fluctuations of diffusivity. This is an advantage of the present method over previous ones, such as the ergodicity breaking parameter and a non-Gaussian parameter, because with either of these parameters it is difficult to distinguish the dynamics of the four polymer models. Also, the present method of a time-averaged MSD tensor could be used to analyze trajectory data obtained in SPT experiments. PMID- 29347493 TI - Kinetic theory of shear thickening for a moderately dense gas-solid suspension: From discontinuous thickening to continuous thickening. AB - The Enskog kinetic theory for moderately dense gas-solid suspensions under simple shear flow is considered as a model to analyze the rheological properties of the system. The influence of the environmental fluid on solid particles is modeled via a viscous drag force plus a stochastic Langevin-like term. The Enskog equation is solved by means of two independent but complementary routes: (i) Grad's moment method and (ii) event-driven Langevin simulation of hard spheres. Both approaches clearly show that the flow curve (stress-strain rate relation) depends significantly on the volume fraction of the solid particles. In particular, as the density increases, there is a transition from the discontinuous shear thickening (observed in dilute gases) to the continuous shear thickening for denser systems. The comparison between theory and simulations indicates that while the theoretical predictions for the kinetic temperature agree well with simulations for densities phi?0.5, the agreement for the other rheological quantities (the viscosity, the stress ratio, and the normal stress differences) is limited to more moderate densities (phi?0.3) if the inelasticity during collisions between particles is not large. PMID- 29347494 TI - Forward, backward, and weighted stochastic bridges. AB - We define stochastic bridges as conditional distributions of stochastic paths that leave a specified point in phase-space in the past and arrive at another one in the future. These can be defined relative to either forward or backward stochastic differential equations and with the inclusion of arbitrary path dependent weights. The underlying stochastic equations are not the same except in linear cases. Accordingly, we generalize the theory of stochastic bridges to include time-reversed and weighted stochastic processes. We show that the resulting stochastic bridges are identical, whether derived from a forward or a backward time stochastic process. A numerical algorithm is obtained to sample these distributions. This technique, which uses partial stochastic equations, is robust and easily implemented. Examples are given, and comparisons are made to previous work. In stochastic equations without a gradient drift, our results confirm an earlier conjecture, while generalizing this to cases with path dependent weights. An example of a two-dimensional stochastic equation with no potential solution is analyzed and numerically solved. We show how this method can treat unexpectedly large excursions occurring during a tunneling or escape event, in which a system escapes from one quasistable point to arrive at another one at a later time. PMID- 29347495 TI - Momentum transport and nonlocality in heat-flux-driven magnetic reconnection in high-energy-density plasmas. AB - Recent theory has demonstrated a novel physics regime for magnetic reconnection in high-energy-density plasmas where the magnetic field is advected by heat flux via the Nernst effect. Here we elucidate the physics of the electron dissipation layer in this regime. Through fully kinetic simulation and a generalized Ohm's law derived from first principles, we show that momentum transport due to a nonlocal effect, the heat-flux-viscosity, provides the dissipation mechanism for magnetic reconnection. Scaling analysis, and simulations show that the reconnection process comprises a magnetic field compression stage and quasisteady reconnection stage, and the characteristic width of the current sheet in this regime is several electron mean-free paths. These results show the important interplay between nonlocal transport effects and generation of anisotropic components to the distribution function. PMID- 29347496 TI - Kinetics of lipid-nanoparticle-mediated intracellular mRNA delivery and function. AB - mRNA delivery into cells forms the basis for one of the new and promising ways to treat various diseases. Among suitable carriers, lipid nanoparticles (LNPs) with a size of about 100 nm are now often employed. Despite high current interest in this area, the understanding of the basic details of LNP-mediated mRNA delivery and function is limited. To clarify the kinetics of mRNA release from LNPs, the author uses three generic models implying (i) exponential, (ii) diffusion controlled, and (iii) detachment-controlled kinetic regimes, respectively. Despite the distinct differences in these kinetics, the associated transient kinetics of mRNA translation to the corresponding protein and its degradation are shown to be not too sensitive to the details of the mRNA delivery by LNPs (or other nanocarriers). In addition, the author illustrates how this protein may temporarily influence the expression of one gene or a few equivalent genes. The analysis includes positive or negative regulation of the gene transcription via the attachment of the protein without or with positive or negative feedback in the gene expression. Stable, bistable, and oscillatory schemes have been scrutinized in this context. PMID- 29347497 TI - Statistical characterization of discrete conservative systems: The web map. AB - We numerically study the two-dimensional, area preserving, web map. When the map is governed by ergodic behavior, it is, as expected, correctly described by Boltzmann-Gibbs statistics, based on the additive entropic functional S_{BG}[p(x)]=-k?dxp(x)lnp(x). In contrast, possible ergodicity breakdown and transitory sticky dynamical behavior drag the map into the realm of generalized q statistics, based on the nonadditive entropic functional S_{q}[p(x)]=k1 ?dx[p(x)]^{q}/q-1 (q?R;S_{1}=S_{BG}). We statistically describe the system (probability distribution of the sum of successive iterates, sensitivity to the initial condition, and entropy production per unit time) for typical values of the parameter that controls the ergodicity of the map. For small (large) values of the external parameter K, we observe q-Gaussian distributions with q=1.935? (Gaussian distributions), like for the standard map. In contrast, for intermediate values of K, we observe a different scenario, due to the fractal structure of the trajectories embedded in the chaotic sea. Long-standing non Gaussian distributions are characterized in terms of the kurtosis and the box counting dimension of chaotic sea. PMID- 29347498 TI - Plain and oscillatory solitons of the cubic complex Ginzburg-Landau equation with nonlinear gradient terms. AB - In this work, we present parameter regions for the existence of stable plain solitons of the cubic complex Ginzburg-Landau equation (CGLE) with higher-order terms associated with a fourth-order expansion. Using a perturbation approach around the nonlinear Schrodinger equation soliton and a full numerical analysis that solves an ordinary differential equation for the soliton profiles and using the Evans method in the search for unstable eigenvalues, we have found that the minimum equation allowing these stable solitons is the cubic CGLE plus a term known in optics as Raman-delayed response, which is responsible for the redshift of the spectrum. The other favorable term for the occurrence of stable solitons is a term that represents the increase of nonlinear gain with higher frequencies. At the stability boundary, a bifurcation occurs giving rise to stable oscillatory solitons for higher values of the nonlinear gain. These oscillations can have very high amplitudes, with the pulse energy changing more than two orders of magnitude in a period, and they can even exhibit more complex dynamics such as period-doubling. PMID- 29347499 TI - Synchronized rotation in swarms of magnetotactic bacteria. AB - Self-organizing behavior has been widely reported in both natural and artificial systems, typically distinguishing between temporal organization (synchronization) and spatial organization (swarming). Swarming has been experimentally observed in systems of magnetotactic bacteria under the action of external magnetic fields. Here we present a model of ensembles of magnetotactic bacteria in which hydrodynamic interactions lead to temporal synchronization in addition to the swarming. After a period of stabilization during which the bacteria form a quasiregular hexagonal lattice structure, the entire swarm begins to rotate in a direction opposite to the direction of the rotation of the magnetic field. We thus illustrate an emergent mechanism of macroscopic motion arising from the synchronized microscopic rotations of hydrodynamically interacting bacteria, reminiscent of the recently proposed concept of swarmalators. PMID- 29347500 TI - Guidance of microswimmers by wall and flow: Thigmotaxis and rheotaxis of unsteady squirmers in two and three dimensions. AB - The motions of an unsteady circular-disk squirmer and a spherical squirmer have been investigated in the presence of a no-slip infinite wall and a background shear flow in order to clarify the similarities and differences between two- and three-dimensional motions. Despite the similar bifurcation structure of the dynamical system, the stability of the fixed points differs due to the Hamiltonian structure of the disk squirmer. Once the unsteady oscillating surface velocity profile is considered, the disk squirmer can behave in a chaotic manner and cease to be confined in a near-wall region. In contrast, in an unsteady spherical squirmer, the dynamics is well attracted by a stable fixed point. Additional wall contact interactions lead to stable fixed points for the disk squirmer, and, in turn, the surface entrapment of the disk squirmer can be stabilized, regardless of the existence of the background flow. Finally, we consider spherical motion under a background flow. The separated time scales of the surface entrapment (thigmotaxis) and the turning toward the flow direction (rheotaxis) enable us to reduce the dynamics to two-dimensional phase space, and simple weather-vane mechanics can predict squirmer rheotaxis. The analogous structure of the phase plane with the wall contact in two and three dimensions implies that the two-dimensional disk swimmer successfully captures the nonlinear interactions, and thus two-dimensional approximation could be useful in designing microfluidic devices for the guidance of microswimmers and for clarifying the locomotions in a complex geometry. PMID- 29347501 TI - Dust coupling parameter of radio-frequency-discharge complex plasma under microgravity conditions. AB - Oscillation of particles in a dust crystal formed in a low-pressure radio frequency gas discharge under microgravity conditions is studied. Analysis of experimental data obtained in our previous study shows that the oscillations are highly isotropic and nearly homogeneous in the bulk of a dust crystal; oscillations of the neighboring particles are significantly correlated. We demonstrate that the standard deviation of the particle radius vector along with the local particle number density fully define the coupling parameter of the particle subsystem. The latter proves to be of the order of 100, which is two orders of magnitude lower than the coupling parameter estimated for the Brownian diffusion of particles with the gas temperature. This means significant kinetic overheating of particles under stationary conditions. A theoretical interpretation of the large amplitude of oscillation implies the increase of particle charge fluctuations in the dust crystal. The theoretical estimates are based on the ionization equation of state for the complex plasma and the equation for the plasma perturbation evolution. They are shown to match the results of experimental data processing. Estimated order of magnitude of the coupling parameter accounts for the existence of the solid-liquid phase transition observed for similar systems in experiments. PMID- 29347502 TI - Topography- and topology-driven spreading of non-Newtonian power-law liquids on a flat and a spherical substrate. AB - The spreading of a cap-shaped spherical droplet of non-Newtonian power-law liquids on a flat and a spherical rough and textured substrate is theoretically studied in the capillary-controlled spreading regime. A droplet whose scale is much larger than that of the roughness of substrate is considered. The equilibrium contact angle on a rough substrate is modeled by the Wenzel and the Cassie-Baxter model. Only the viscous energy dissipation within the droplet volume is considered, and that within the texture of substrate by imbibition is neglected. Then, the energy balance approach is adopted to derive the evolution equation of the contact angle. When the equilibrium contact angle vanishes, the relaxation of dynamic contact angle theta of a droplet obeys a power-law decay theta~t^{-alpha} except for the Newtonian and the non-Newtonian shear-thinning liquid of the Wenzel model on a spherical substrate. The spreading exponent alpha of the non-Newtonian shear-thickening liquid of the Wenzel model on a spherical substrate is larger than others. The relaxation of the Newtonian liquid of the Wenzel model on a spherical substrate is even faster showing the exponential relaxation. The relaxation of the non-Newtonian shear-thinning liquid of Wenzel model on a spherical substrate is fastest and finishes within a finite time. Thus, the topography (roughness) and the topology (flat to spherical) of substrate accelerate the spreading of droplet. PMID- 29347503 TI - Impact-induced solidlike behavior and elasticity in concentrated colloidal suspensions. AB - Modified drop weight impact tests were performed on SiO_{2}-ethylene glycol concentrated suspensions. Counterintuitive impact-induced solidlike behavior and elasticity, causing significant deceleration and rebound of the impactor, were observed. We provide evidence that the observed large deceleration force on the impactor mainly originates from the hydrodynamic force, and that the elasticity arises from the short-range repulsive force of a solvation layer on the particle surface. This study presents key experimental results to help understand the mechanisms underlying various stress-induced solidification phenomena. PMID- 29347504 TI - Ion-beam-plasma interaction effects on electrostatic solitary wave propagation in ultradense relativistic quantum plasmas. AB - Understanding the transport properties of charged particle beams is important not only from a fundamental point of view but also due to its relevance in a variety of applications. A theoretical model is established in this article, to model the interaction of a tenuous positively charged ion beam with an ultradense quantum electron-ion plasma, by employing a rigorous relativistic quantum-hydrodynamic (fluid plasma) electrostatic model proposed in McKerr et al. [M. McKerr, F. Haas, and I. Kourakis, Phys. Rev. E 90, 033112 (2014)PLEEE81539 375510.1103/PhysRevE.90.033112]. A nonlinear analysis is carried out to elucidate the propagation characteristics and the existence conditions of large amplitude electrostatic solitary waves propagating in the plasma in the presence of the beam. Anticipating stationary profile excitations, a pseudomechanical energy balance formalism is adopted to reduce the fluid evolution equation to an ordinary differential equation. Exact solutions are thus obtained numerically, predicting localized excitations (pulses) for all of the plasma state variables, in response to an electrostatic potential disturbance. An ambipolar electric field form is also obtained. Thorough analysis of the reality conditions for all variables is undertaken in order to determine the range of allowed values for the solitonic pulse speed and how it varies as a function of the beam characteristics (beam velocity and density). PMID- 29347505 TI - Diffusivity of E. coli-like microswimmers in confined geometries: The role of the tumbling rate. AB - We analyzed the effect of confinement on the effective diffusion of a run-and tumble E. coli-like flagellated microswimmer. We used a simulation protocol where the run phases are obtained via a fully resolved swimming problem, i.e., Stokes equations for the fluid coupled with rigid-body dynamics for the microorganism, while tumbles and collisions with the walls are modeled as random reorientation of the microswimmer. For weak confinement, the swimmer is trapped in circular orbits close to the solid walls. In this case, optimal diffusivity is observed when the tumbling frequency is comparable with the angular velocity of the stable orbits. For strong confinement, stable circular orbits disappear and the diffusion coefficient monotonically decreases with the tumbling rate. Our findings are generic and can be potentially applied to other natural or artificial chiral microswimmers that follow circular trajectories close to an interface or in confined geometries. PMID- 29347506 TI - Energy transport in the presence of long-range interactions. AB - We study energy transport in the paradigmatic Hamiltonian mean-field (HMF) model and other related long-range interacting models using molecular dynamics simulations. We show that energy diffusion in the HMF model is subdiffusive in nature, which confirms a recently obtained intriguing result that, despite being globally interacting, this model is a thermal insulator in the thermodynamic limit. Surprisingly, when additional nearest-neighbor interactions are introduced to the HMF model, an energy superdiffusion is observed. We show that these results can be consistently explained by studying energy localization due to thermally generated intrinsic localized excitation modes (discrete breathers) in nonlinear discrete systems. Our analysis for the HMF model can also be readily extended to more generic long-range interacting models where the interaction strength decays algebraically with the (shortest) distance between two lattice sites. This reconciles many of the apparently counterintuitive results presented recently [C. Olivares and C. Anteneodo, Phys. Rev. E 94, 042117 (2016)2470 004510.1103/PhysRevE.94.042117; D. Bagchi, Phys. Rev. E 95, 032102 (2017)2470 004510.1103/PhysRevE.95.032102] concerning energy transport in two such long range interacting models. PMID- 29347507 TI - Predictability and strength of a heterogeneous system: The role of system size and disorder. AB - In this paper, I have studied the effect of disorder (delta) and system size (L) in a fiber bundle model with a certain range R of stress redistribution. The strength of the bundle as well as the failure abruptness is observed with varying disorder, stress release range, and system sizes. With a local stress concentration, the strength of the bundle is observed to decrease with system size. The behavior of such decrements changes drastically as disorder strength is tuned. At moderate disorder, sigma_{c} scales with the system size as sigma_{c}~1/logL. In low disorder, where the brittle response is highly expected, the strength decreases in a scale-free manner (sigma_{c}~1/L). With increasing L and R, the model approaches the thermodynamic limit and the mean-field limit, respectively. A detailed study shows different limits of the model and the corresponding modes of failure on the plane of the above-mentioned parameters (delta,L, and R). PMID- 29347508 TI - Publisher's Note: Generalized model for k-core percolation and interdependent networks [Phys. Rev. E 96, 032317 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.96.032317. PMID- 29347509 TI - Diversity of charge orderings in correlated systems. AB - The phenomenon associated with inhomogeneous distribution of electron density is known as a charge ordering. In this work, we study the zero-bandwidth limit of the extended Hubbard model, which can be considered as a simple effective model of charge ordered insulators. It consists of the on-site interaction U and the intersite density-density interactions W_{1} and W_{2} between nearest neighbors and next-nearest neighbors, respectively. We derived the exact ground state diagrams for different lattice dimensionalities and discuss effects of small finite temperatures in the limit of high dimensions. In particular, we estimated the critical interactions for which new ordered phases emerge (laminar or stripe and four-sublattice-type). Our analysis show that the ground state of the model is highly degenerated. One of the most intriguing finding is that the nonzero temperature removes these degenerations. PMID- 29347510 TI - Clustering spectrum of scale-free networks. AB - Real-world networks often have power-law degrees and scale-free properties, such as ultrasmall distances and ultrafast information spreading. In this paper, we study a third universal property: three-point correlations that suppress the creation of triangles and signal the presence of hierarchy. We quantify this property in terms of c[over -](k), the probability that two neighbors of a degree k node are neighbors themselves. We investigate how the clustering spectrum k?c[over -](k) scales with k in the hidden-variable model and show that c[over ](k) follows a universal curve that consists of three k ranges where c[over -](k) remains flat, starts declining, and eventually settles on a power-law c[over ](k)~k^{-alpha} with alpha depending on the power law of the degree distribution. We test these results against ten contemporary real-world networks and explain analytically why the universal curve properties only reveal themselves in large networks. PMID- 29347511 TI - Design of coupling parameters for inducing amplitude death in Cartesian product networks of delayed coupled oscillators. AB - The present study investigates amplitude death in Cartesian product networks of two subnetworks, where each subnetwork has a different coupling delay. The property of the Cartesian product helps us to analyze the stability of amplitude death. Our analysis reveals that amplitude death can occur for long coupling delays if there is a suitable difference in the coupling delays in the two subnetworks. Furthermore, based on the edge theorem in robust control theory, we propose two design procedures of coupling parameters for inducing amplitude death in the Cartesian product networks. Our procedures do not require any information of topologies of the subnetworks. The validity of these procedures is numerically confirmed. PMID- 29347512 TI - Symmetry breaking in two interacting populations of quadratic integrate-and-fire neurons. AB - We analyze the dynamics of two coupled identical populations of quadratic integrate-and-fire neurons, which represent the canonical model for class I neurons near the spiking threshold. The populations are heterogeneous; they include both inherently spiking and excitable neurons. The coupling within and between the populations is global via synapses that take into account the finite width of synaptic pulses. Using a recently developed reduction method based on the Lorentzian ansatz, we derive a closed system of equations for the neuron's firing rates and the mean membrane potentials in both populations. The reduced equations are exact in the infinite-size limit. The bifurcation analysis of the equations reveals a rich variety of nonsymmetric patterns, including a splay state, antiphase periodic oscillations, chimera-like states, and chaotic oscillations as well as bistabilities between various states. The validity of the reduced equations is confirmed by direct numerical simulations of the finite-size networks. PMID- 29347513 TI - Coherent motion of chaotic attractors. AB - We report a simple model of two drive-response-type coupled chaotic oscillators, where the response system copies the nonlinearity of the driver system. It leads to a coherent motion of the trajectories of the coupled systems that establishes a constant separating distance in time between the driver and the response attractors, and their distance depends upon the initial state. The coupled system responds to external obstacles, modeled by short-duration pulses acting either on the driver or the response system, by a coherent shifting of the distance, and it is able to readjust their distance as and when necessary via mutual exchange of feedback information. We confirm these behaviors with examples of a jerk system, the paradigmatic Rossler system, a tunnel diode system and a Josephson junction based jerk system, analytically, to an extent, and mostly numerically. PMID- 29347514 TI - Pinning of a drop by a junction on an incline. AB - The shape of a drop pinned on an inclined substrate is a long-standing problem where the complexity of real surfaces, with heterogeneities and hysteresis, makes it complicated to understand the mechanisms behind the phenomena. Here we consider the simple case of a drop pinned on an incline at the junction between a hydrophilic half plane (the top half) and a hydrophobic one (the bottom half). Relying on the equilibrium equations deriving from the balance of forces, we exhibit three scenarios depending on the way the contact line of the drop on the substrate either simply leans against the junction or overfills (partly or fully) into the hydrophobic side. We draw some conclusions on the geometry of the overlap and the stability of these tentative equilibrium states. In the corresponding retention force factor, we find that a major role is played by the wetted length of the junction line, in the spirit of Furmidge's observations. The predictions of the theory are compared with extensive molecular dynamics simulations. PMID- 29347515 TI - Transient response in granular quasi-two-dimensional bounded heap flow. AB - We study the transition between steady flows of noncohesive granular materials in quasi-two-dimensional bounded heaps by suddenly changing the feed rate. In both experiments and simulations, the primary feature of the transition is a wedge of flowing particles that propagates downstream over the rising free surface with a wedge front velocity inversely proportional to the square root of time. An additional longer duration transient process continues after the wedge front reaches the downstream wall. The entire transition is well modeled as a moving boundary problem with a diffusionlike equation derived from local mass balance and a local relation between the flux and the surface slope. PMID- 29347516 TI - Resonant activation of population extinctions. AB - Understanding the mechanisms governing population extinctions is of key importance to many problems in ecology and evolution. Stochastic factors are known to play a central role in extinction, but the interactions between a population's demographic stochasticity and environmental noise remain poorly understood. Here we model environmental forcing as a stochastic fluctuation between two states, one with a higher death rate than the other. We find that, in general, there exists a rate of fluctuations that minimizes the mean time to extinction, a phenomenon previously dubbed "resonant activation." We develop a heuristic description of the phenomenon, together with a criterion for the existence of resonant activation. Specifically, the minimum extinction time arises as a result of the system approaching a scenario wherein the severity of rare events is balanced by the time interval between them. We discuss our findings within the context of more general forms of environmental noise and suggest potential applications to evolutionary models. PMID- 29347517 TI - Embedding the dynamics of a single delay system into a feed-forward ring. AB - We investigate the relation between the dynamics of a single oscillator with delayed self-feedback and a feed-forward ring of such oscillators, where each unit is coupled to its next neighbor in the same way as in the self-feedback case. We show that periodic solutions of the delayed oscillator give rise to families of rotating waves with different wave numbers in the corresponding ring. In particular, if for the single oscillator the periodic solution is resonant to the delay, it can be embedded into a ring with instantaneous couplings. We discover several cases where the stability of a periodic solution for the single unit can be related to the stability of the corresponding rotating wave in the ring. As a specific example, we demonstrate how the complex bifurcation scenario of simultaneously emerging multijittering solutions can be transferred from a single oscillator with delayed pulse feedback to multijittering rotating waves in a sufficiently large ring of oscillators with instantaneous pulse coupling. Finally, we present an experimental realization of this dynamical phenomenon in a system of coupled electronic circuits of FitzHugh-Nagumo type. PMID- 29347518 TI - Similarity of ensembles of trajectories of reversible and irreversible growth processes. AB - Models of bacterial growth tend to be "irreversible," allowing for the number of bacteria in a colony to increase but not to decrease. By contrast, models of molecular self-assembly are usually "reversible," allowing for the addition and removal of particles to a structure. Such processes differ in a fundamental way because only reversible processes possess an equilibrium. Here we show at the mean-field level that dynamic trajectories of reversible and irreversible growth processes are similar in that both feel the influence of attractors, at which growth proceeds without limit but the intensive properties of the system are invariant. Attractors of both processes undergo nonequilibrium phase transitions as model parameters are varied, suggesting a unified way of describing typical properties of reversible and irreversible growth. We also establish a connection at the mean-field level between an irreversible model of growth (the magnetic Eden model) and the equilibrium Ising model, supporting the findings made by other authors using numerical simulations. PMID- 29347519 TI - Environmental rocking ratchet: Environmental rectification by a harmonically driven avoided crossing. AB - We propose a rocking ratchet designed as a symmetric quantum two-state system driven by a single periodic harmonic force and influenced symmetrically by thermal fluctuations. We show that the necessary broken symmetry can dynamically be achieved by a thermal environment that couples to the energy difference between the two states and the tunnel coupling between them. The quantum two state system is driven by the harmonic periodic drive through its avoided crossing. The correspondingly driven dissipative quantum dynamics results on average in a finite population difference between both states. This then causes directed particle transport. PMID- 29347520 TI - Relativistic analysis of stochastic kinematics. AB - The relativistic analysis of stochastic kinematics is developed in order to determine the transformation of the effective diffusivity tensor in inertial frames. Poisson-Kac stochastic processes are initially considered. For one dimensional spatial models, the effective diffusion coefficient measured in a frame Sigma moving with velocity w with respect to the rest frame of the stochastic process is inversely proportional to the third power of the Lorentz factor gamma(w)=(1-w^{2}/c^{2})^{-1/2}. Subsequently, higher-dimensional processes are analyzed and it is shown that the diffusivity tensor in a moving frame becomes nonisotropic: The diffusivities parallel and orthogonal to the velocity of the moving frame scale differently with respect to gamma(w). The analysis of discrete space-time diffusion processes permits one to obtain a general transformation theory of the tensor diffusivity, confirmed by several different simulation experiments. Several implications of the theory are also addressed and discussed. PMID- 29347521 TI - Inverse problem for multispecies ferromagneticlike mean-field models in phase space with many states. AB - In this paper we solve the inverse problem for the Curie-Weiss model and its multispecies version when multiple thermodynamic states are present as in the low temperature phase where the phase space is clustered. The inverse problem consists of reconstructing the model parameters starting from configuration data generated according to the distribution of the model. We demonstrate that, without taking into account the presence of many states, the application of the inversion procedure produces very poor inference results. To overcome this problem, we use the clustering algorithm. When the system has two symmetric states of positive and negative magnetizations, the parameter reconstruction can also be obtained with smaller computational effort simply by flipping the sign of the magnetizations from positive to negative (or vice versa). The parameter reconstruction fails when the system undergoes a phase transition: In that case we give the correct inversion formulas for the Curie-Weiss model and we show that they can be used to measure how close the system gets to being critical. PMID- 29347522 TI - Semiclassical catastrophe theory of simple bifurcations. AB - The Fedoriuk-Maslov catastrophe theory of caustics and turning points is extended to solve the bifurcation problems by the improved stationary phase method (ISPM). The trace formulas for the radial power-law (RPL) potentials are presented by the ISPM based on the second- and third-order expansion of the classical action near the stationary point. A considerable enhancement of contributions of the two orbits (pair consisting of the parent and newborn orbits) at their bifurcation is shown. The ISPM trace formula is proposed for a simple bifurcation scenario of Hamiltonian systems with continuous symmetries, where the contributions of the bifurcating parent orbits vanish upon approaching the bifurcation point due to the reduction of the end-point manifold. This occurs since the contribution of the parent orbits is included in the term corresponding to the family of the newborn daughter orbits. Taking this feature into account, the ISPM level densities calculated for the RPL potential model are shown to be in good agreement with the quantum results at the bifurcations and asymptotically far from the bifurcation points. PMID- 29347523 TI - Microstructure and mechanical properties of hyperuniform heterogeneous materials. AB - A hyperuniform random heterogeneous material is one in which the local volume fraction fluctuations in an observation window decay faster than the reciprocal window volume as the window size increases. Recent studies show that this class of materials are endowed with superior physical properties such as large isotropic photonic band gaps and optimal transport properties. Here we employ a stochastic optimization procedure to systematically generate realizations of hyperuniform heterogeneous materials with controllable short-range order, which is partially quantified using the two-point correlation function S_{2}(r) associated with the phase of interest. Specifically, our procedure generalizes the widely used Yeong-Torquato reconstruction procedure by including an additional constraint for hyperuniformity, i.e., the volume integral of the autocovariance function chi(r)=S_{2}(r)-phi^{2} over the whole space is zero. In addition, we only require the reconstructed S_{2} to match the target function up to a certain cutoff distance gamma, in order to give the system sufficient degrees of freedom to satisfy the hyperuniform condition. By systematically increasing the gamma value for a given S_{2}, one can produce a spectrum of hyperuniform heterogeneous materials with varying degrees of partial short-range order compatible with the specified S_{2}. The mechanical performance including both elastic and brittle fracture behaviors of the generated hyperuniform materials is analyzed using a volume-compensated lattice-particle method. For the purpose of comparison, the corresponding nonhyperuniform materials with the same short-range order (i.e., with S_{2} constrained up to the same gamma value) are also constructed and their mechanical performance is analyzed. Here we consider two specific S_{2} including the positive exponential decay function and the correlation function associated with an equilibrium hard-sphere system. For the constructed systems associated with these two specific functions, we find that although the hyperuniform materials are softer than their nonhyperuniform counterparts, the former generally possess a significantly higher brittle fracture strength than the latter. This superior mechanical behavior is attributed to the lower degree of stress concentration in the material resulting from the hyperuniform microstructure, which is crucial to crack initiation and propagation. PMID- 29347524 TI - Effect of high-order dispersion on three-soliton interactions for the variable coefficients Hirota equation. AB - The interactions of multiple solitons show different properties with two-soliton interactions. For the difficulty of deriving multiple soliton solutions, it is rare to study multiple soliton interactions analytically. In this paper, three soliton interactions in inhomogeneous optical fibers, which are described by the variable coefficient Hirota equation, are investigated. Via the Hirota bilinear method and symbolic computation, analytic three-soliton solutions are obtained. According to the obtained solutions, properties and features of three-soliton interactions are discussed by changing the third-order dispersion (TOD) and other relevant coefficients, and some plentiful structure of three-soliton interactions are presented for the first time. The influences of TOD on the intensity and propagation distance of solitons are described, which can be used to realize the soliton control. Besides, the method that can achieve the phase reverse of solitons is suggested, and bound states of three solitons are observed, which have potential applications in the mode-locked fiber lasers. Furthermore, comparing to two-soliton interactions, a novel phenomenon of three-soliton interactions with a strong phase shift at x=0 is revealed, which is potentially useful for optical logic switches. PMID- 29347525 TI - Network patterns in exponentially growing two-dimensional biofilms. AB - Anisotropic collective patterns occur frequently in the morphogenesis of two dimensional biofilms. These patterns are often attributed to growth regulation mechanisms and differentiation based on gradients of diffusing nutrients and signaling molecules. Here, we employ a model of bacterial growth dynamics to show that even in the absence of growth regulation or differentiation, confinement by an enclosing medium such as agar can itself lead to stable pattern formation over time scales that are employed in experiments. The underlying mechanism relies on path formation through physical deformation of the enclosing environment. PMID- 29347526 TI - Limit regimes of ice formation in turbulent supercooled water. AB - A study of ice formation in stationary turbulent conditions is carried out in various limit regimes of crystal growth, supercooling, and ice entrainment at the water surface. Analytical expressions for the temperature, salinity, and ice concentration mean profiles are provided, and the role of fluctuations in ice production is numerically quantified. Lower bounds on the ratio of sensible heat flux to latent heat flux to the atmosphere are derived and their dependence on key parameters such as salt rejection in freezing and ice entrainment in the water column is elucidated. PMID- 29347527 TI - Collisional damping rates for electron plasma waves reassessed. AB - Collisional damping of electron plasma waves, the primary damping for high phase velocity waves, is proportional to the electron-ion collision rate, nu_{ei,th}. Here, it is shown that the damping rate normalized to nu_{ei,th} depends on the charge state, Z, on the magnitude of nu_{ei,th} and the wave number k in contrast with the commonly used damping rate in plasma wave research. Only for weak collision rates in low-Z plasmas for which the electron self-collision rate is comparable to the electron-ion collision rate is the damping rate given by the commonly accepted value. The result presented here corrects the result presented in textbooks at least as early as 1973. The complete linear theory requires the inclusion of both electron-ion pitch-angle and electron-electron scattering, which itself contains contributions to both pitch-angle scattering and thermalization. PMID- 29347528 TI - Quantum work fluctuations in connection with the Jarzynski equality. AB - A result of great theoretical and experimental interest, the Jarzynski equality predicts a free energy change DeltaF of a system at inverse temperature beta from an ensemble average of nonequilibrium exponential work, i.e., =e^{ betaDeltaF}. The number of experimental work values needed to reach a given accuracy of DeltaF is determined by the variance of e^{-betaW}, denoted var(e^{ betaW}). We discover in this work that var(e^{-betaW}) in both harmonic and anharmonic Hamiltonian systems can systematically diverge in nonadiabatic work protocols, even when the adiabatic protocols do not suffer from such divergence. This divergence may be regarded as a type of dynamically induced phase transition in work fluctuations. For a quantum harmonic oscillator with time-dependent trapping frequency as a working example, any nonadiabatic work protocol is found to yield a diverging var(e^{-betaW}) at sufficiently low temperatures, markedly different from the classical behavior. The divergence of var(e^{-betaW}) indicates the too-far-from-equilibrium nature of a nonadiabatic work protocol and makes it compulsory to apply designed control fields to suppress the quantum work fluctuations in order to test the Jarzynski equality. PMID- 29347529 TI - Percolation thresholds in hyperbolic lattices. AB - We use invasion percolation to compute numerical values for bond and site percolation thresholds p_{c} (existence of an infinite cluster) and p_{u} (uniqueness of the infinite cluster) of tesselations {P,Q} of the hyperbolic plane, where Q faces meet at each vertex and each face is a P-gon. Our values are accurate to six or seven decimal places, allowing us to explore their functional dependency on P and Q and to numerically compute critical exponents. We also prove rigorous upper and lower bounds for p_{c} and p_{u} that can be used to find the scaling of both thresholds as a function of P and Q. PMID- 29347530 TI - Stochastic efficiency of an isothermal work-to-work converter engine. AB - We investigate the efficiency of an isothermal Brownian work-to-work converter engine, composed of a Brownian particle coupled to a heat bath at a constant temperature. The system is maintained out of equilibrium by using two external time-dependent stochastic Gaussian forces, where one is called load force and the other is called drive force. Work done by these two forces are stochastic quantities. The efficiency of this small engine is defined as the ratio of stochastic work done against load force to stochastic work done by the drive force. The probability density function as well as large deviation function of the stochastic efficiency are studied analytically and verified by numerical simulations. PMID- 29347531 TI - Local-stability analysis of a low-dissipation heat engine working at maximum power output. AB - In this paper we address the stability of a low-dissipation (LD) heat engine (HE) under maximum power conditions. The LD system dynamics are analyzed in terms of the contact times between the engine and the external heat reservoirs, which determine the amount of heat exchanged by the system. We study two different scenarios that secure the existence of a single stable steady state. In these scenarios, contact times dynamics are governed by restitutive forces that are linear functions of either the heat amounts exchanged per cycle, or the corresponding heat fluxes. In the first case, according to our results, preferably locating the system irreversibility sources at the hot-reservoir coupling improves the system stability and increases its efficiency. On the other hand, reducing the thermal gradient increases the system efficiency but deteriorates its stability properties, because the restitutive forces are smaller. Additionally, it is possible to compare the relaxation times with the total cycle time and obtain some constraints upon the system dynamics. In the second case, where the restitutive forces are assumed to be linear functions of the heat fluxes, we find that although the partial contact time presents a locally stable stationary value, the total cycle time does not; instead, there exists an infinite collection of steady values located in the neighborhood of the fixed point, along a one-dimensional manifold. Finally, the role of dissipation asymmetries on the efficiency, the stability, and the ratio of the total cycle time to the relaxation time is emphasized. PMID- 29347532 TI - Dual lattice functional renormalization group for the Berezinskii-Kosterlitz Thouless transition: Irrelevance of amplitude and out-of-plane fluctuations. AB - We develop a functional renormalization group (FRG) approach for the two dimensional XY model by combining the lattice FRG proposed by Machado and Dupuis [Phys. Rev. E 82, 041128 (2010)PLEEE81539-375510.1103/PhysRevE.82.041128] with a duality transformation that explicitly introduces vortices via an integer-valued field. We show that the hierarchy of FRG flow equations for the infinite set of relevant and marginal couplings of the model can be reduced to the well-known Kosterlitz-Thouless renormalization group equations for the renormalized temperature and the vortex fugacity. Within our approach it is straightforward to include weak amplitude as well as out-of-plane fluctuations of the spins, which lead to additional interactions between the vortices that do not spoil the Berezinskii-Kosterlitz-Thouless transition. This demonstrates that previous failures to obtain a line of true fixed points within the FRG are a mathematical artifact of insufficient truncation schemes. PMID- 29347533 TI - Model of chromosomal loci dynamics in bacteria as fractional diffusion with intermittent transport. AB - The short-time dynamics of bacterial chromosomal loci is a mixture of subdiffusive and active motion, in the form of rapid relocations with near ballistic dynamics. While previous work has shown that such rapid motions are ubiquitous, we still have little grasp on their physical nature, and no positive model is available that describes them. Here, we propose a minimal theoretical model for loci movements as a fractional Brownian motion subject to a constant but intermittent driving force, and compare simulations and analytical calculations to data from high-resolution dynamic tracking in E. coli. This analysis yields the characteristic time scales for intermittency. Finally, we discuss the possible shortcomings of this model, and show that an increase in the effective local noise felt by the chromosome associates to the active relocations. PMID- 29347534 TI - Exponential bound in the quest for absolute zero. AB - In most studies for the quantification of the third law of thermodynamics, the minimum temperature which can be achieved with a long but finite-time process scales as a negative power of the process duration. In this article, we use our recent complete solution for the optimal control problem of the quantum parametric oscillator to show that the minimum temperature which can be obtained in this system scales exponentially with the available time. The present work is expected to motivate further research in the active quest for absolute zero. PMID- 29347535 TI - Publisher's Note: Spreading law of non-Newtonian power-law liquids on a spherical substrate by an energy-balance approach [Phys. Rev. E 96, 012803 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.96.012803. PMID- 29347536 TI - Force fluctuations on a wall in interaction with a granular lid-driven cavity flow. AB - The force fluctuations experienced by a boundary wall subjected to a lid-driven cavity flow are investigated by means of numerical simulations based on the discrete-element method. The time-averaged dynamics inside the cavity volume and the resulting steady force on the wall are governed by the boundary macroscopic inertial number, the latter being derived from the shearing velocity and the confinement pressure imposed at the top. The force fluctuations are quantified through measuring both the autocorrelation of force time series and the distributions of grain-wall forces, at distinct spatial scales from particle scale to wall scale. A key result is that the grain-wall force distributions are entirely driven by the boundary macroscopic inertial number, whatever the spatial scale considered. In particular, when the wall scale is considered, the distributions are found to evolve from nearly exponential to nearly Gaussian distributions by decreasing the macroscopic inertial number. The transition from quasistatic to dense inertial flow is well identified through remarkable changes in the shapes of the distributions of grain-wall forces, accompanied by a loss of system memory in terms of the mesoscale force transmitted toward the wall. PMID- 29347537 TI - Ordering kinetics in the random-bond XY model. AB - We present a comprehensive Monte Carlo study of domain growth in the random-bond XY model with nonconserved kinetics. The presence of quenched disorder slows down domain growth in d=2,3. In d=2, we observe power-law growth with a disorder dependent exponent on the time scales of our simulation. In d=3, we see the signature of an asymptotically logarithmic growth regime. The scaling functions for the real-space correlation function are seen to be independent of the disorder. However, the same does not apply for the two-time autocorrelation function, demonstrating the breakdown of superuniversality. PMID- 29347538 TI - Refined energy-conserving dissipative particle dynamics model with temperature dependent properties and its application in solidification problem. AB - It has been observed previously that the physical behaviors of Schmidt number (Sc) and Prandtl number (Pr) of an energy-conserving dissipative particle dynamics (eDPD) fluid can be reproduced by the temperature-dependent weight function appearing in the dissipative force term. In this paper, we proposed a simple and systematic method to develop the temperature-dependent weight function in order to better reproduce the physical fluid properties. The method was then used to study a variety of phase-change problems involving solidification. The concept of the "mushy" eDPD particle was introduced in order to better capture the temperature profile in the vicinity of the solid-liquid interface, particularly for the case involving high thermal conductivity ratio. Meanwhile, a way to implement the constant temperature boundary condition at the wall was presented. The numerical solutions of one- and two-dimensional solidification problems were then compared with the analytical solutions and/or experimental results and the agreements were promising. PMID- 29347539 TI - Theory of nanobubble formation and induced force in nanochannels. AB - This paper presents a fundamental theory of nanobubble formation and induced force in confined nanochannels. It is shown that nanobubble formation between hydrophobic plates can be predicted from their surface tension and geometry, with estimated values for the surface free energy and the force acting on the plates in good agreement with the results of molecular dynamics simulation and experimentation. When a bubble is formed between two plates, vertical attractive force and horizontal retract force due to the shifted plates are applied to the plates. The net force exerted on the plates is not dependent on the distance between them. The short-range force between hydrophobic surfaces due to hydrophobic interaction appears to correspond to the force estimated by our theory. We compared between experimental and theoretical values for the binding energy of a molecular motor system to validate our theory. The tendency that the binding energy increases as the size of the protein increases is consistent with the theory. PMID- 29347540 TI - Compliant contact versus rigid contact: A comparison in the context of granular dynamics. AB - We summarize and numerically compare two approaches for modeling and simulating the dynamics of dry granular matter. The first one, the discrete-element method via penalty (DEM-P), is commonly used in the soft matter physics and geomechanics communities; it can be traced back to the work of Cundall and Strack [P. Cundall, Proc. Symp. ISRM, Nancy, France 1, 129 (1971); P. Cundall and O. Strack, Geotechnique 29, 47 (1979)GTNQA80016-850510.1680/geot.1979.29.1.47]. The second approach, the discrete-element method via complementarity (DEM-C), considers the grains perfectly rigid and enforces nonpenetration via complementarity conditions; it is commonly used in robotics and computer graphics applications and had two strong promoters in Moreau and Jean [J. J. Moreau, in Nonsmooth Mechanics and Applications, edited by J. J. Moreau and P. D. Panagiotopoulos (Springer, Berlin, 1988), pp. 1-82; J. J. Moreau and M. Jean, Proceedings of the Third Biennial Joint Conference on Engineering Systems and Analysis, Montpellier, France, 1996, pp. 201-208]. The DEM-P and DEM-C are manifestly unlike each other: They use different (i) approaches to model the frictional contact problem, (ii) sets of model parameters to capture the physics of interest, and (iii) classes of numerical methods to solve the differential equations that govern the dynamics of the granular material. Herein, we report numerical results for five experiments: shock wave propagation, cone penetration, direct shear, triaxial loading, and hopper flow, which we use to compare the DEM-P and DEM-C solutions. This exercise helps us reach two conclusions. First, both the DEM-P and DEM-C are predictive, i.e., they predict well the macroscale emergent behavior by capturing the dynamics at the microscale. Second, there are classes of problems for which one of the methods has an advantage. Unlike the DEM-P, the DEM-C cannot capture shock wave propagation through granular media. However, the DEM-C is proficient at handling arbitrary grain geometries and solves, at large integration step sizes, smaller problems, i.e., containing thousands of elements, very effectively. The DEM-P vs DEM-C comparison is carried out using a public-domain, open-source software package; the models used are available online. PMID- 29347541 TI - Solid ^{4}He and the diffusion Monte Carlo method: A study of their properties. AB - Properties of helium atoms in the solid phase are investigated using the multiweight diffusion Monte Carlo method. Two different importance function transformations are used in two series of independent calculations. The kinetic energy is estimated for both the solid and liquid phases of ^{4}He. We estimate the melting and freezing densities, among other properties of interest. Our estimates are compared with experimental values. We discuss why walkers biased by two distinctly different guiding functions do not lead to noticeable changes in the reported results. Criticisms concerning the bias introduced into our estimates by population control and system size effects are considered. PMID- 29347542 TI - Breather solutions of a fourth-order nonlinear Schrodinger equation in the degenerate, soliton, and rogue wave limits. AB - We present one- and two-breather solutions of the fourth-order nonlinear Schrodinger equation. With several parameters to play with, the solution may take a variety of forms. We consider most of these cases including the general form and limiting cases when the modulation frequencies are 0 or coincide. The zero frequency limit produces a combination of breather-soliton structures on a constant background. The case of equal modulation frequencies produces a degenerate solution that requires a special technique for deriving. A zero frequency limit of this degenerate solution produces a rational second-order rogue wave solution with a stretching factor involved. Taking, in addition, the zero limit of the stretching factor transforms the second-order rogue waves into a soliton. Adding a differential shift in the degenerate solution results in structural changes in the wave profile. Moreover, the zero-frequency limit of the degenerate solution with differential shift results in a rogue wave triplet. The zero limit of the stretching factor in this solution, in turn, transforms the triplet into a singlet plus a low-amplitude soliton on the background. A large value of the differential shift parameter converts the triplet into a pure singlet. PMID- 29347543 TI - Cover time for random walks on arbitrary complex networks. AB - We present an analytical method for computing the mean cover time of a discrete time random walk process on arbitrary, complex networks. The cover time is defined as the time a random walker requires to visit every node in the network at least once. This quantity is particularly important for random search processes and target localization on network structures. Based on the global mean first-passage time of target nodes, we derive a method for computing the cumulative distribution function of the cover time based on first-passage time statistics. Our method is viable for networks on which random walks equilibrate quickly. We show that it can be applied successfully to various model and real world networks. Our results reveal an intimate link between first-passage and cover time statistics and offer a computationally efficient way for estimating cover times in network-related applications. PMID- 29347544 TI - Adiabatic elimination of inertia of the stochastic microswimmer driven by alpha stable noise. AB - We consider a microswimmer that moves in two dimensions at a constant speed and changes the direction of its motion due to a torque consisting of a constant and a fluctuating component. The latter will be modeled by a symmetric Levy-stable (alpha-stable) noise. The purpose is to develop a kinetic approach to eliminate the angular component of the dynamics to find a coarse-grained description in the coordinate space. By defining the joint probability density function of the position and of the orientation of the particle through the Fokker-Planck equation, we derive transport equations for the position-dependent marginal density, the particle's mean velocity, and the velocity's variance. At time scales larger than the relaxation time of the torque tau_{phi}, the two higher moments follow the marginal density and can be adiabatically eliminated. As a result, a closed equation for the marginal density follows. This equation, which gives a coarse-grained description of the microswimmer's positions at time scales t?tau_{phi}, is a diffusion equation with a constant diffusion coefficient depending on the properties of the noise. Hence, the long-time dynamics of a microswimmer can be described as a normal, diffusive, Brownian motion with Gaussian increments. PMID- 29347545 TI - Erratum: Bypass rewiring and robustness of complex networks [Phys. Rev. E 94, 022310 (2016)]. AB - This corrects the article DOI: 10.1103/PhysRevE.94.022310. PMID- 29347546 TI - Phase transitions in systems with aggregation and shattering. AB - We consider a system of clusters made of elementary building blocks, monomers, and evolving via collisions between diffusing monomers and immobile composite clusters. In our model, the cluster-monomer collision can lead to the attachment of the monomer to the cluster (addition process) or to the total breakup of the cluster (shattering process). A phase transition, separating qualitatively different behaviors, occurs when the probability of shattering events exceeds a certain threshold. The novel feature of the phase transition is the dramatic dependence on the initial conditions. PMID- 29347547 TI - Observations of cavity polaritons in one-dimensional photonic crystals containing a liquid-crystalline semiconductor based on perylene bisimide units. AB - We investigated the optical transmission properties of one-dimensional photonic crystal (1D-PC) microcavity structures containing the liquid-crystalline (LC) perylene tetracarboxylic bisimide (PTCBI) derivative. We fabricated the microcavity structures for this study by two different methods and observed the cavity polaritons successfully in both samples. For one sample, since the PTCBI molecules were aligned in the cavity layer of the 1D-PC by utilizing a friction transfer method, vacuum Rabi splitting energy was strongly dependent on the polarization of the incident light produced by the peculiar optical features of the LC organic semiconductor. For the other sample, we did not utilize the friction transfer method and did not observe such polarization dependence. However, we did observe a relatively large Rabi splitting energy of 187 meV, probably due to the improvement of optical confinement effect. PMID- 29347548 TI - Temperature dependence of the Landau-Placzek ratio in liquid water. AB - Rayleigh-Brillouin light scattering is studied in liquid water over the range from 249 to 365 K. Experiments are carried out with a high spectral resolution (0.1 GHz), eliminating any contribution of the structural relaxation to the elastic line. The Landau-Placzek ratio is found as the ratio of the Rayleigh and Brillouin intensities. In the whole temperature range, the Landau-Placzek ratio is found to be in good agreement with a prediction of the theory with a pair of independent thermodynamic variables, pressure and entropy. This description is usually used for single-component homogeneous liquids. An excess of the Landau Placzek ratio above the prediction is expected for inhomogeneous liquids and is observed, for example, in glass-forming liquids below a certain temperature. In contrast to glass-forming liquids, no excess of elastically scattered light increasing at low temperatures is observed for the Landau-Placzek ratio of water. This suggests that the Landau-Placzek ratio of liquid water can be described by a homogeneous structure, and the idea of the water structure consisting of two structural motifs may not be necessary to explain the experimental ratio. PMID- 29347549 TI - Multiscale permutation entropy analysis of laser beam wandering in isotropic turbulence. AB - We have experimentally quantified the temporal structural diversity from the coordinate fluctuations of a laser beam propagating through isotropic optical turbulence. The main focus here is on the characterization of the long-range correlations in the wandering of a thin Gaussian laser beam over a screen after propagating through a turbulent medium. To fulfill this goal, a laboratory controlled experiment was conducted in which coordinate fluctuations of the laser beam were recorded at a sufficiently high sampling rate for a wide range of turbulent conditions. Horizontal and vertical displacements of the laser beam centroid were subsequently analyzed by implementing the symbolic technique based on ordinal patterns to estimate the well-known permutation entropy. We show that the permutation entropy estimations at multiple time scales evidence an interplay between different dynamical behaviors. More specifically, a crossover between two different scaling regimes is observed. We confirm a transition from an integrated stochastic process contaminated with electronic noise to a fractional Brownian motion with a Hurst exponent H=5/6 as the sampling time increases. Besides, we are able to quantify, from the estimated entropy, the amount of electronic noise as a function of the turbulence strength. We have also demonstrated that these experimental observations are in very good agreement with numerical simulations of noisy fractional Brownian motions with a well-defined crossover between two different scaling regimes. PMID- 29347550 TI - Stochastic maps, continuous approximation, and stable distribution. AB - A continuous approximation framework for general nonlinear stochastic as well as deterministic discrete maps is developed. For the stochastic map with uncorelated Gaussian noise, by successively applying the Ito lemma, we obtain a Langevin type of equation. Specifically, we show how nonlinear maps give rise to a Langevin description that involves multiplicative noise. The multiplicative nature of the noise induces an additional effective force, not present in the absence of noise. We further exploit the continuum description and provide an explicit formula for the stable distribution of the stochastic map and conditions for its existence. Our results are in good agreement with numerical simulations of several maps. PMID- 29347551 TI - Tensile elasticity of semiflexible polymers with hinge defects. AB - It has become clear in recent years that the simple uniform wormlike chain model needs to be modified in order to account for more complex behavior which has been observed experimentally in some important biopolymers. For example, the large flexibility of short ds-DNA has been attributed to kink or hinge defects. In this paper, we calculate analytically, within the weak bending approximation, the force-extension relation of a wormlike chain with a permanent hinge defect along its contour. The defect is characterized by its bending energy (which can be zero, in the completely flexible case) and its position along the polymer contour. Besides the bending rigidity of the chain, these are the only parameters which describe our model. We show that a hinge defect causes a significant increase in the differential tensile compliance of a prestressed chain. In the small force limit, a hinge defect significantly increases the entropic elasticity. Our results apply to any pair of semiflexible segments connected by a hinge. As such, they may also be relevant to cytoskeletal filaments (F-actin, microtubules), where one may treat the cross-link connecting two filaments as a hinge defect. PMID- 29347552 TI - Complete diagrammatics of the single-ring theorem. AB - Using diagrammatic techniques, we provide explicit functional relations between the cumulant generating functions for the biunitarily invariant ensembles in the limit of large size of matrices. The formalism allows us to map two distinct areas of free random variables: Hermitian positive definite operators and non normal R-diagonal operators. We also rederive the Haagerup-Larsen theorem and show how its recent extension to the eigenvector correlation function appears naturally within this approach. PMID- 29347553 TI - Instabilities of convection patterns in a shear-thinning fluid between plates of finite conductivity. AB - Rayleigh-Benard convection in a horizontal layer of a non-Newtonian fluid between slabs of arbitrary thickness and finite thermal conductivity is considered. The first part of the paper deals with the primary bifurcation and the relative stability of convective patterns at threshold. Weakly nonlinear analysis combined with Stuart-Landau equation is used. The competition between squares and rolls, as a function of the shear-thinning degree of the fluid, the slabs' thickness, and the ratio of the thermal conductivity of the slabs to that of the fluid is investigated. Computations of heat transfer coefficients are in agreement with the maximum heat transfer principle. The second part of the paper concerns the stability of the convective patterns toward spatial perturbations and the determination of the band width of the stable wave number in the neighborhood of the critical Rayleigh number. The approach used is based on the Ginzburg-Landau equations. The study of rolls stability shows that: (i) for low shear-thinning effects, the band of stable wave numbers is bounded by zigzag instability and cross-roll instability. Furthermore, the marginal cross-roll stability boundary enlarges with increasing shear-thinning properties; (ii) for high shear-thinning effects, Eckhaus instability becomes more dangerous than cross-roll instability. For square patterns, the wave number selection is always restricted by zigzag instability and by "rectangular Eckhaus" instability. In addition, the width of the stable wave number decreases with increasing shear-thinning effects. Numerical simulations of the planform evolution are also presented to illustrate the different instabilities considered in the paper. PMID- 29347554 TI - Action at a distance in classical uniaxial ferromagnetic arrays. AB - We examine in detail the theoretical foundations of striking long-range couplings emerging in arrays of fluid cells connected by narrow channels by using a lattice gas (Ising model) description of a system. We present a reexamination of the well known exact determination of the two-point correlation function along the edge of a channel using the transfer matrix technique and a different interpretation is provided. The explicit form of the correlation length is found to grow exponentially with the cross section of the channels at the bulk two-phase coexistence. The aforementioned result is recaptured by a refined version of the Fisher-Privman theory of first order phase transitions in which the Boltzmann factor for a domain wall is decorated with a contribution stemming from the point tension originated at its end points. The Boltzmann factor for a domain wall together with the point tension is then identified exactly thanks to two independent analytical techniques, providing a critical test of the Fisher Privman theory. We then illustrate how to build up the network model from its elementary constituents, the cells and the channels. Moreover, we are able to extract the strength of the coupling between cells and express them in terms of the length and width and coarse-grained quantities such as surface and point tensions. We then support our theoretical investigation with a series of corroborating results based on Monte Carlo simulations. We illustrate how the long-range ordering occurs and how the latter is signaled by the thermodynamic quantities corresponding to both planar and three-dimensional Ising arrays. PMID- 29347555 TI - Morphing continuum theory for turbulence: Theory, computation, and visualization. AB - A high order morphing continuum theory (MCT) is introduced to model highly compressible turbulence. The theory is formulated under the rigorous framework of rational continuum mechanics. A set of linear constitutive equations and balance laws are deduced and presented from the Coleman-Noll procedure and Onsager's reciprocal relations. The governing equations are then arranged in conservation form and solved through the finite volume method with a second-order Lax Friedrichs scheme for shock preservation. A numerical example of transonic flow over a three-dimensional bump is presented using MCT and the finite volume method. The comparison shows that MCT-based direct numerical simulation (DNS) provides a better prediction than Navier-Stokes (NS)-based DNS with less than 10% of the mesh number when compared with experiments. A MCT-based and frame indifferent Q criterion is also derived to show the coherent eddy structure of the downstream turbulence in the numerical example. It should be emphasized that unlike the NS-based Q criterion, the MCT-based Q criterion is objective without the limitation of Galilean invariance. PMID- 29347556 TI - One-dimensional description of driven diffusion in periodic channels. AB - Diffusion of point-like particles driven by a constant longitudinal force in two dimensional channels of periodically varying width is studied. The dynamics of such systems can be effectively described by the one-dimensional Smoluchowski( Fick-Jacobs) equation in the longitudinal coordinate x, extended by a space dependent effective diffusion coefficient D(x). Our paper is focused on calculation of this function for an arbitrary channel shaping function h(x). Unlike the previous algorithms based on scaling of the transverse lengths, the method presented here uses periodicity of the channel. Instead of complicated expansion containing higher order derivatives of h(x), the proposed algorithm results in an integral formula for D(x), enabling us to study the system for wide range of the driving force and various (periodic) shaping functions h(x). PMID- 29347557 TI - Constant-pressure nested sampling with atomistic dynamics. AB - The nested sampling algorithm has been shown to be a general method for calculating the pressure-temperature-composition phase diagrams of materials. While the previous implementation used single-particle Monte Carlo moves, these are inefficient for condensed systems with general interactions where single particle moves cannot be evaluated faster than the energy of the whole system. Here we enhance the method by using all-particle moves: either Galilean Monte Carlo or the total enthalpy Hamiltonian Monte Carlo algorithm, introduced in this paper. We show that these algorithms enable the determination of phase transition temperatures with equivalent accuracy to the previous method at 1/N of the cost for an N-particle system with general interactions, or at equal cost when single particle moves can be done in 1/N of the cost of a full N-particle energy evaluation. We demonstrate this speed-up for the freezing and condensation transitions of the Lennard-Jones system and show the utility of the algorithms by calculating the order-disorder phase transition of a binary Lennard-Jones model alloy, the eutectic of copper-gold, the density anomaly of water, and the condensation and solidification of bead-spring polymers. The nested sampling method with all three algorithms is implemented in the pymatnest software. PMID- 29347558 TI - Complete delocalization in a defective periodic structure. AB - We report on the existence of stable, completely delocalized response regimes in a nonlinear defective periodic structure. In this state of complete delocalization, despite the presence of the defect, the system exhibits in-phase oscillation of all units with the same amplitude. This elimination of defect borne localization may occur in both the free and forced responses of the system. In the absence of external driving, the localized defect mode becomes completely delocalized at a certain energy level. In the case of a damped-driven system, complete delocalization may be realized if the driving amplitude is beyond a certain threshold. We demonstrate this phenomenon numerically in a linear periodic structure with one and two defective units possessing a nonlinear restoring force. We derive closed-form analytical expressions for the onset of complete delocalization, and we discuss the necessary conditions for its occurrence. PMID- 29347559 TI - How anisotropy beats fractality in two-dimensional on-lattice diffusion-limited aggregation growth. AB - We study the fractal structure of diffusion-limited aggregation (DLA) clusters on a square lattice by extensive numerical simulations (with clusters having up to 10^{8} particles). We observe that DLA clusters undergo strongly anisotropic growth, with the maximal growth rate along the axes. The naive scaling limit of a DLA cluster by its diameter is thus deterministic and one-dimensional. At the same time, on all scales from the particle size to the size of the entire cluster it has a nontrivial box-counting fractal dimension which corresponds to the overall growth rate, which, in turn, is smaller than the growth rate along the axes. This suggests that the fractal nature of the lattice DLA should be understood in terms of fluctuations around the one-dimensional backbone of the cluster. PMID- 29347560 TI - Effect of capillary condensation on gas transport properties in porous media. AB - We investigate the effect of capillary condensation on gas diffusivity in porous media composed of randomly packed spheres with moderate wettability. To simulate capillary phenomena at the pore scale while retaining complex pore networks of the porous media, we employ density functional theory (DFT) for coarse-grained lattice gas models. The lattice DFT simulations reveal that capillary condensations preferentially occur at confined pores surrounded by solid walls, leading to the occlusion of narrow pores. Consequently, the characteristic lengths of the partially wet structures are larger than those of the corresponding dry structures with the same porosities. Subsequent gas diffusion simulations exploiting the mean-square displacement method indicate that while the effective diffusion coefficients significantly decrease in the presence of partially condensed liquids, they are larger than those in the dry structures with the same porosities. Moreover, we find that the ratio of the porosity to the tortuosity factor, which is a crucial parameter that determines an effective diffusion coefficient, can be reasonably related to the porosity even for the partially wet porous media. PMID- 29347561 TI - Irreversible thermodynamics of curved lipid membranes. AB - The theory of irreversible thermodynamics for arbitrarily curved lipid membranes is presented here. The coupling between elastic bending and irreversible processes such as intramembrane lipid flow, intramembrane phase transitions, and protein binding and diffusion is studied. The forms of the entropy production for the irreversible processes are obtained, and the corresponding thermodynamic forces and fluxes are identified. Employing the linear irreversible thermodynamic framework, the governing equations of motion along with appropriate boundary conditions are provided. PMID- 29347562 TI - Rational extended thermodynamics of a rarefied polyatomic gas with molecular relaxation processes. AB - We present a more refined version of rational extended thermodynamics of rarefied polyatomic gases in which molecular rotational and vibrational relaxation processes are treated individually. In this case, we need a triple hierarchy of the moment system and the system of balance equations is closed via the maximum entropy principle. Three different types of the production terms in the system, which are suggested by a generalized BGK-type collision term in the Boltzmann equation, are adopted. In particular, the rational extended thermodynamic theory with seven independent fields (ET_{7}) is analyzed in detail. Finally, the dispersion relation of ultrasonic wave derived from the ET_{7} theory is confirmed by the experimental data for CO_{2}, Cl_{2}, and Br_{2} gases. PMID- 29347563 TI - Importance of small-degree nodes in assortative networks with degree-weight correlations. AB - It has been known that assortative network structure plays an important role in spreading dynamics for unweighted networks. Yet its influence on weighted networks is not clear, in particular when weight is strongly correlated with the degrees of the nodes as we empirically observed in Twitter. Here we use the self consistent probability method and revised nonperturbative heterogenous mean-field theory method to investigate this influence on both susceptible-infective recovered (SIR) and susceptible-infective-susceptible (SIS) spreading dynamics. Both our simulation and theoretical results show that while the critical threshold is not significantly influenced by the assortativity, the prevalence in the supercritical regime shows a crossover under different degree-weight correlations. In particular, unlike the case of random mixing networks, in assortative networks, the negative degree-weight correlation leads to higher prevalence in their spreading beyond the critical transmissivity than that of the positively correlated. In addition, the previously observed inhibition effect on spreading velocity by assortative structure is not apparent in negatively degree weight correlated networks, while it is enhanced for that of the positively correlated. Detailed investigation into the degree distribution of the infected nodes reveals that small-degree nodes play essential roles in the supercritical phase of both SIR and SIS spreadings. Our results have direct implications in understanding viral information spreading over online social networks and epidemic spreading over contact networks. PMID- 29347564 TI - Epidemic spreading on activity-driven networks with attractiveness. AB - We study SIS epidemic spreading processes unfolding on a recent generalization of the activity-driven modeling framework. In this model of time-varying networks, each node is described by two variables: activity and attractiveness. The first describes the propensity to form connections, while the second defines the propensity to attract them. We derive analytically the epidemic threshold considering the time scale driving the evolution of contacts and the contagion as comparable. The solutions are general and hold for any joint distribution of activity and attractiveness. The theoretical picture is confirmed via large-scale numerical simulations performed considering heterogeneous distributions and different correlations between the two variables. We find that heterogeneous distributions of attractiveness alter the contagion process. In particular, in the case of uncorrelated and positive correlations between the two variables, heterogeneous attractiveness facilitates the spreading. On the contrary, negative correlations between activity and attractiveness hamper the spreading. The results presented contribute to the understanding of the dynamical properties of time-varying networks and their effects on contagion phenomena unfolding on their fabric. PMID- 29347565 TI - Formation and evolution of target patterns in Cahn-Hilliard flows. AB - We study the evolution of the concentration field in a single eddy in the two dimensional (2D) Cahn-Hilliard system to better understand scalar mixing processes in that system. This study extends investigations of the classic studies of flux expulsion in 2D magnetohydrodynamics and homogenization of potential vorticity in 2D fluids. Simulation results show that there are three stages in the evolution: (A) formation of a "jelly roll" pattern, for which the concentration field is constant along spirals; (B) a change in isoconcentration contour topology; and (C) formation of a target pattern, for which the isoconcentration contours follow concentric annuli. In the final target pattern stage, the isoconcentration bands align with stream lines. The results indicate that the target pattern is a metastable state. The band merger process continues on a time scale exponentially long relative to the eddy turnover time. The band merger process resembles step merger in drift-ZF staircases; this is characteristic of the long-time evolution of phase-separated patterns described by the Cahn-Hilliard equation. PMID- 29347566 TI - Macroscopic phase-resetting curves for spiking neural networks. AB - The study of brain rhythms is an open-ended, and challenging, subject of interest in neuroscience. One of the best tools for the understanding of oscillations at the single neuron level is the phase-resetting curve (PRC). Synchronization in networks of neurons, effects of noise on the rhythms, effects of transient stimuli on the ongoing rhythmic activity, and many other features can be understood by the PRC. However, most macroscopic brain rhythms are generated by large populations of neurons, and so far it has been unclear how the PRC formulation can be extended to these more common rhythms. In this paper, we describe a framework to determine a macroscopic PRC (mPRC) for a network of spiking excitatory and inhibitory neurons that generate a macroscopic rhythm. We take advantage of a thermodynamic approach combined with a reduction method to simplify the network description to a small number of ordinary differential equations. From this simplified but exact reduction, we can compute the mPRC via the standard adjoint method. Our theoretical findings are illustrated with and supported by numerical simulations of the full spiking network. Notably our mPRC framework allows us to predict the difference between effects of transient inputs to the excitatory versus the inhibitory neurons in the network. PMID- 29347567 TI - Kinetics of biochemical sensing by single cells and populations of cells. AB - We investigate the collective stationary sensing using N communicative cells, which involves surface receptors, diffusive signaling molecules, and cell-cell communication messengers. We restrict the scenarios to the signal-to-noise ratios (SNRs) for both strong communication and extrinsic noise only. We modified a previous model [Bialek and Setayeshgar, Proc. Natl. Acad. Sci. USA 102, 10040 (2005)PNASA60027-842410.1073/pnas.0504321102] to eliminate the singularities in the fluctuation correlations by considering a uniform receptor distribution over the surface of each cell with a finite radius a. The modified model enables a simple and rigorous mathematical treatment of the collective sensing phenomenon. We then derive the scaling of the SNR for both juxtacrine and autocrine cases in all dimensions. For the optimal locations of the cells in the autocrine case, we find identical scaling for both two and three dimensions. PMID- 29347568 TI - Impact of environmental colored noise in single-species population dynamics. AB - Variability on external conditions has important consequences for the dynamics and the organization of biological systems. In many cases, the characteristic timescale of environmental changes as well as their correlations play a fundamental role in the way living systems adapt and respond to it. A proper mathematical approach to understand population dynamics, thus, requires approaches more refined than, e.g., simple white-noise approximations. To shed further light onto this problem, in this paper we propose a unifying framework based on different analytical and numerical tools available to deal with "colored" environmental noise. In particular, we employ a "unified colored noise approximation" to map the original problem into an effective one with white noise, and then we apply a standard path integral approach to gain analytical understanding. For the sake of specificity, we present our approach using as a guideline a variation of the contact process-which can also be seen as a birth death process of the Malthus-Verhulst class-where the propagation or birth rate varies stochastically in time. Our approach allows us to tackle in a systematic manner some of the relevant questions concerning population dynamics under environmental variability, such as determining the stationary population density, establishing the conditions under which a population may become extinct, and estimating extinction times. We focus on the emerging phase diagram and its possible phase transitions, underlying how these are affected by the presence of environmental noise time-correlations. PMID- 29347569 TI - Scaling of the surface vasculature on the human placenta. AB - The networks of veins and arteries on the chorionic plate of the human placenta are analyzed in terms of Voronoi cells derived from these networks. Two groups of placentas from the United States are studied: a population cohort with no prescreening, and a cohort from newborns with an elevated risk of developing autistic spectrum disorder. Scaled distributions of the Voronoi cell areas in the two cohorts collapse onto a single distribution, indicating common mechanisms for the formation of the complete vasculatures, but which have different levels of activity in the two cohorts. PMID- 29347570 TI - Flame propagation in two-dimensional solids: Particle-resolved studies with complex plasmas. AB - Using two-dimensional (2D) complex plasmas as an experimental model system, particle-resolved studies of flame propagation in classical 2D solids are carried out. Combining experiments, theory, and molecular dynamics simulations, we demonstrate that the mode-coupling instability operating in 2D complex plasmas reveals all essential features of combustion, such as an activated heat release, two-zone structure of the self-similar temperature profile ("flame front"), as well as thermal expansion of the medium and temperature saturation behind the front. The presented results are of relevance for various fields ranging from combustion and thermochemistry, to chemical physics and synthesis of materials. PMID- 29347571 TI - Diffusion dynamics and synchronizability of hierarchical products of networks. AB - The hierarchical product of networks represents a natural tool for building large networks out of two smaller subnetworks: a primary subnetwork and a secondary subnetwork. Here we study the dynamics of diffusion and synchronization processes on hierarchical products. We apply techniques previously used for approximating the eigenvalues of the adjacency matrix to the Laplacian matrix, allowing us to quantify the effects that the primary and secondary subnetworks have on diffusion and synchronization in terms of a coupling parameter that weighs the secondary subnetwork relative to the primary subnetwork. Diffusion processes are separated into two regimes: for small coupling the diffusion rate is determined by the structure of the secondary network, scaling with the coupling parameter, while for large coupling it is determined by the primary network and saturates. Synchronization, on the other hand, is separated into three regimes, for both small and large coupling hierarchical products have poor synchronization properties, but is optimized at an intermediate value. Moreover, the critical coupling value that optimizes synchronization is shaped by the relative connectivities of the primary and secondary subnetworks, compensating for significant differences between the two subnetworks. PMID- 29347572 TI - Multichain models of conserved lattice gas. AB - Conserved lattice-gas models in one dimension exhibit absorbing state phase transition (APT) with simple integer exponents beta=1=nu=eta, whereas the same on a ladder belong to directed percolation (DP) universality. We conjecture that additional stochasticity in particle transfer is a relevant perturbation and its presence on a ladder forces the APT to be in the DP class. To substantiate this we introduce a class of restricted conserved lattice-gas models on a multichain system (M*L square lattice with periodic boundary condition in both directions), where particles which have exactly one vacant neighbor are active and they move deterministically to the neighboring vacant site. We show that for odd number of chains, in the thermodynamic limit L->infinity, these models exhibit APT at rho_{c}=1/2(1+1/M) with beta=1. On the other hand, for even-chain systems transition occurs at rho_{c}=1/2 with beta=1,2 for M=2,4, respectively, and beta=3 for M>=6. We illustrate this unusual critical behavior analytically using a transfer-matrix method. PMID- 29347573 TI - Tricriticality in crossed Ising chains. AB - We explore the phase diagram of Ising spins on one-dimensional chains that criss cross in two perpendicular directions and that are connected by interchain couplings. This system is of interest as a simpler, classical analog of a quantum Hamiltonian that has been proposed as a model of magnetic behavior in Nb_{12}O_{29} and also, conceptually, as a geometry that is intermediate between one and two dimensions. Using mean-field theory as well as Metropolis Monte Carlo and Wang-Landau simulations, we locate quantitatively the boundaries of four ordered phases. Each becomes an effective Ising model with unique effective couplings at large interchain coupling. Away from this limit, we demonstrate nontrivial critical behavior, including tricritical points that separate first- and second-order phase transitions. Finally, we present evidence that this model belongs to the two-dimensional Ising universality class. PMID- 29347574 TI - Emergence of biaxial nematic phases in solutions of semiflexible dimers. AB - We investigate the isotropic, uniaxial nematic and biaxial nematic phases, and the transitions between them, for a model lyotropic mixture of flexible molecules consisting of two rigid rods connected by a spacer with variable bending stiffness. We apply density-functional theory within the Onsager approximation to describe strictly excluded-volume interactions in this athermal model and to self consistently find the orientational order parameters dictated by its complex symmetry, as functions of the density. Earlier work on lyotropic ordering of rigid bent-rod molecules is reproduced and extended to show explicitly the continuous phase transition at the Landau point, at a critical bend angle of 36^{?}. For flexible dimers with no intrinsic biaxiality, we find that a biaxial nematic phase can nevertheless form at a sufficiently high density and low bending stiffness. For bending stiffness kappa>0.86k_{B}T, this biaxial phase manifests as dimer bending fluctuations occurring preferentially in one plane. When the dimers are more flexible, kappa<0.86k_{B}T, the modal shape of the fluctuating dimer is a V with an acute opening angle, and one of the biaxial order parameters changes sign, indicating a rotation of the directors. These two regions are separated by a narrow strip of uniaxial nematic in the phase diagram, which we generate in terms of the spacer stiffness and particle density. PMID- 29347575 TI - Critical phenomena of a hybrid phase transition in cluster merging dynamics. AB - Recently, a hybrid percolation transition (HPT) that exhibits both a discontinuous transition and critical behavior at the same transition point has been observed in diverse complex systems. While the HPT induced by avalanche dynamics has been studied extensively, the HPT induced by cluster merging dynamics (HPT-CMD) has received little attention. Here, we aim to develop a theoretical framework for the HPT-CMD. We find that two correlation-length exponents are necessary for characterizing the giant cluster and finite clusters separately. The conventional formula of the fractal dimension in terms of the critical exponents is not valid. Neither the giant nor finite clusters are fractals, but they have fractal boundaries. A finite-size scaling method for the HPT-CMD is also introduced. PMID- 29347576 TI - Multiscale Granger causality. AB - In the study of complex physical and biological systems represented by multivariate stochastic processes, an issue of great relevance is the description of the system dynamics spanning multiple temporal scales. While methods to assess the dynamic complexity of individual processes at different time scales are well established, multiscale analysis of directed interactions has never been formalized theoretically, and empirical evaluations are complicated by practical issues such as filtering and downsampling. Here we extend the very popular measure of Granger causality (GC), a prominent tool for assessing directed lagged interactions between joint processes, to quantify information transfer across multiple time scales. We show that the multiscale processing of a vector autoregressive (AR) process introduces a moving average (MA) component, and describe how to represent the resulting ARMA process using state space (SS) models and to combine the SS model parameters for computing exact GC values at arbitrarily large time scales. We exploit the theoretical formulation to identify peculiar features of multiscale GC in basic AR processes, and demonstrate with numerical simulations the much larger estimation accuracy of the SS approach compared to pure AR modeling of filtered and downsampled data. The improved computational reliability is exploited to disclose meaningful multiscale patterns of information transfer between global temperature and carbon dioxide concentration time series, both in paleoclimate and in recent years. PMID- 29347577 TI - Lognormal-like statistics of a stochastic squeeze process. AB - We analyze the full statistics of a stochastic squeeze process. The model's two parameters are the bare stretching rate w and the angular diffusion coefficient D. We carry out an exact analysis to determine the drift and the diffusion coefficient of log(r), where r is the radial coordinate. The results go beyond the heuristic lognormal description that is implied by the central limit theorem. Contrary to the common "quantum Zeno" approximation, the radial diffusion is not simply D_{r}=(1/8)w^{2}/D but has a nonmonotonic dependence on w/D. Furthermore, the calculation of the radial moments is dominated by the far non-Gaussian tails of the log(r) distribution. PMID- 29347578 TI - Turbulent flow over craters on Mars: Vorticity dynamics reveal aeolian excavation mechanism. AB - Impact craters are scattered across Mars. These craters exhibit geometric self similarity over a spectrum of diameters, ranging from tens to thousands of kilometers. The late Noachian-early Hesperian boundary marks a dramatic shift in the role of mid-latitude craters, from depocenter sedimentary basins to aeolian source areas. At present day, many craters contain prominent layered sedimentary mounds with maximum elevations comparable to the rim height. The mounds are remnants of Noachian deposition and are surrounded by a radial moat. Large-eddy simulation has been used to model turbulent flows over synthetic craterlike geometries. Geometric attributes of the craters and the aloft flow have been carefully matched to resemble ambient conditions in the atmospheric boundary layer of Mars. Vorticity dynamics analysis within the crater basin reveals the presence of counterrotating helical vortices, verifying the efficacy of deflationary models put forth recently by Bennett and Bell [K. Bennett and J. Bell, Icarus 264, 331 (2016)]ICRSA50019-103510.1016/j.icarus.2015.09.041 and Day et al. [M. Day et al., Geophys. Res. Lett. 43, 2473 (2016)]GPRLAJ0094 827610.1002/2016GL068011. We show how these helical counterrotating vortices spiral around the outer rim, gradually deflating the moat and carving the mound; excavation occurs faster on the upwind side, explaining the radial eccentricity of the mounds relative to the surrounding crater basin. PMID- 29347579 TI - Electrostatic fluctuations in collisional plasmas. AB - We present a theory of electrostatic fluctuations in two-component plasmas where electrons and ions are described by Maxwellian distribution functions at unequal temperatures. Based on the exact solution of the Landau kinetic equation, that includes electron-electron, electron-ion, and ion-ion collision integrals, the dynamic form factor, S(k[over ?],omega), is derived for weakly coupled plasmas. The collective plasma responses at ion-acoustic, Langmuir, and entropy mode resonances are described for arbitrary wave numbers and frequencies in the entire range of plasma collisionality. The collisionless limit of S(k[over ?],omega) and the strong-collision result based on the fluctuation-dissipation theorem and classical transport at T_{e}=T_{i} are recovered and discussed. Results of several Thomson scattering experiments in the broad range of plasma parameters are described and discussed by means of our theory for S(k[over ?],omega). PMID- 29347580 TI - Kinetic approach to condensation: Diatomic gases with dipolar molecules. AB - We derive a kinetic equation for rarefied diatomic gases whose molecules have a permanent dipole moment. Estimating typical parameters of such gases, we show that quantum effects cannot be neglected when describing the rotation of molecules, which we thus approximate by quantum rotators. The intermolecular potential is assumed to involve an unspecified short-range repulsive component and a long-range dipole-dipole Coulomb interaction. In the kinetic equation derived, the former and the latter give rise, respectively, to the collision integral and a self-consistent electric field generated collectively by the dipoles (as in the Vlasov model of plasma). It turns out that the characteristic period of the molecules' rotation is much shorter than the time scale of the collective electric force and the latter is much shorter than the time scale of the collision integral, which allows us to average the kinetic equation over rotation. In the averaged model, collisions and interaction with the collective field affect only those rotational levels of the molecules that satisfy certain conditions of synchronism. It is then shown that the derived model does not describe condensation; i.e., permanent dipoles of molecules cannot exert the level of intermolecular attraction necessary for condensation. It is argued that an adequate model of condensation must include the temporary dipoles that molecules induce on each other during interaction, and that this model must be quantum, not classical. PMID- 29347581 TI - Noisy independent component analysis of autocorrelated components. AB - We present a method for the separation of superimposed, independent, autocorrelated components from noisy multichannel measurement. The presented method simultaneously reconstructs and separates the components, taking all channels into account, and thereby increases the effective signal-to-noise ratio considerably, allowing separations even in the high-noise regime. Characteristics of the measurement instruments can be included, allowing for application in complex measurement situations. Independent posterior samples can be provided, permitting error estimates on all desired quantities. Using the concept of information field theory, the algorithm is not restricted to any dimensionality of the underlying space or discretization scheme thereof. PMID- 29347582 TI - Estimation of the degree of dynamical instability from the information entropy of symbolic dynamics. AB - A positive Lyapunov exponent is the most convincing signature of chaos. However, existing methods for estimating the Lyapunov exponent from a time series often give unreliable estimates because they trace the time evolution of the distance between a pair of initially neighboring trajectories in phase space. Here, we propose a mathematical method for estimating the degree of dynamical instability, as a surrogate for the Lyapunov exponent, without tracing initially neighboring trajectories on the basis of the information entropy from a symbolic time series. We apply the proposed method to numerical time series generated by well-known chaotic systems and experimental time series and verify its validity. PMID- 29347583 TI - Quantum Monte Carlo with variable spins: Fixed-phase and fixed-node approximations. AB - We study several aspects of the recently introduced fixed-phase spinor diffusion Monte Carlo method, in particular, its relation to the fixed-node method and its potential use as a general approach for electronic structure calculations. We illustrate constructions of spinor-based wave functions with the full space-spin symmetry without assigning up or down spin labels to particular electrons, effectively "complexifying" even ordinary real-valued wave functions for Hamiltonians without spin terms. Interestingly, with proper choice of the simulation parameters and spin variables, such fixed-phase calculations enable one to reach also the fixed-node limit. The fixed-phase approximation has several desirable properties when compared to the fixed-node approximation. The fixed phase solution provides a straightforward interpretation as the lowest bosonic state in a given effective potential generated by the many-body approximate phase, whereas nodal boundary conditions are defined through less intuitive and complicated hypersurfaces with one dimension less than the original configuration space. In addition, the divergences of the local energy and drift at real wave function nodes are smoothed out to lower dimensionality when the wave function is complexified, thus decreasing the variation of sampled quantities and eliminating artificial nodal domain issues that can occur in the fixed-node formalism. We illustrate some of these properties on calculations of selected first-row systems that recover the fixed-node results with quantitatively similar levels of the corresponding biases. At the same time, the fixed-phase approach opens new possibilities for more general trial wave functions with further opportunities for increasing accuracy in practical calculations. PMID- 29347584 TI - Crossover from ballistic to normal heat transport in the phi^{4} lattice: If nonconservation of momentum is the reason, what is the mechanism? AB - Anomalous (non-Fourier) heat transport is no longer just a theoretical issue since it has been observed experimentally in a number of low-dimensional nanomaterials, such as SiGe nanowires, carbon nanotubes, and others. To understand these anomalous behaviors, exploring the microscopic origin of normal (Fourier) heat transport is a fascinating theoretical topic. However, this issue has not yet been fully understood even for one-dimensional (1D) model chains, in spite of a great amount of thorough studies done to date. From those studies, it has been widely accepted that the conservation of momentum is a key ingredient to induce anomalous heat transport, while momentum-nonconserving systems usually support normal heat transport where Fourier's law is valid. But if the nonconservation of momentum is the reason, what is the underlying microscopic mechanism for the observed normal heat transport? Here we carefully revisit a typical 1D momentum-nonconserving phi^{4} model, and we present evidence that the mobile discrete breathers, or, in other words, the moving intrinsic localized modes with frequency components above the linear phonon band, can be responsible for that. PMID- 29347585 TI - Reconstruction of a digital core containing clay minerals based on a clustering algorithm. AB - It is difficult to obtain a core sample and information for digital core reconstruction of mature sandstone reservoirs around the world, especially for an unconsolidated sandstone reservoir. Meanwhile, reconstruction and division of clay minerals play a vital role in the reconstruction of the digital cores, although the two-dimensional data-based reconstruction methods are specifically applicable as the microstructure reservoir simulation methods for the sandstone reservoir. However, reconstruction of clay minerals is still challenging from a research viewpoint for the better reconstruction of various clay minerals in the digital cores. In the present work, the content of clay minerals was considered on the basis of two-dimensional information about the reservoir. After application of the hybrid method, and compared with the model reconstructed by the process-based method, the digital core containing clay clusters without the labels of the clusters' number, size, and texture were the output. The statistics and geometry of the reconstruction model were similar to the reference model. In addition, the Hoshen-Kopelman algorithm was used to label various connected unclassified clay clusters in the initial model and then the number and size of clay clusters were recorded. At the same time, the K-means clustering algorithm was applied to divide the labeled, large connecting clusters into smaller clusters on the basis of difference in the clusters' characteristics. According to the clay minerals' characteristics, such as types, textures, and distributions, the digital core containing clay minerals was reconstructed by means of the clustering algorithm and the clay clusters' structure judgment. The distributions and textures of the clay minerals of the digital core were reasonable. The clustering algorithm improved the digital core reconstruction and provided an alternative method for the simulation of different clay minerals in the digital cores. PMID- 29347586 TI - Bak-Tang-Wiesenfeld model in the upper critical dimension: Induced criticality in lower-dimensional subsystems. AB - We present extensive numerical simulations of Bak-Tang-Wiesenfeld (BTW) sandpile model on the hypercubic lattice in the upper critical dimension D_{u}=4. After re extracting the critical exponents of avalanches, we concentrate on the three- and two-dimensional (2D) cross sections seeking for the induced criticality which are reflected in the geometrical and local exponents. Various features of finite-size scaling (FSS) theory have been tested and confirmed for all dimensions. The hyperscaling relations between the exponents of the distribution functions and the fractal dimensions are shown to be valid for all dimensions. We found that the exponent of the distribution function of avalanche mass is the same for the d dimensional cross sections and the d-dimensional BTW model for d=2 and 3. The geometrical quantities, however, have completely different behaviors with respect to the same-dimensional BTW model. By analyzing the FSS theory for the geometrical exponents of the two-dimensional cross sections, we propose that the 2D induced models have degrees of similarity with the Gaussian free field (GFF). Although some local exponents are slightly different, this similarity is excellent for the fractal dimensions. The most important one showing this feature is the fractal dimension of loops d_{f}, which is found to be 1.50+/ 0.02~3/2=d_{f}^{GFF}. PMID- 29347587 TI - Spectral estimation of the percolation transition in clustered networks. AB - There have been several spectral bounds for the percolation transition in networks, using spectrum of matrices associated with the network such as the adjacency matrix and the nonbacktracking matrix. However, they are far from being tight when the network is sparse and displays clustering or transitivity, which is represented by existence of short loops, e.g., triangles. In this paper, for the bond percolation, we first propose a message-passing algorithm for calculating size of percolating clusters considering effects of triangles, then relate the percolation transition to the leading eigenvalue of a matrix that we name the triangle-nonbacktracking matrix, by analyzing stability of the message passing equations. We establish that our method gives a tighter lower bound to the bond percolation transition than previous spectral bounds, and it becomes exact for an infinite network with no loops longer than 3. We evaluate numerically our methods on synthetic and real-world networks, and discuss further generalizations of our approach to include higher-order substructures. PMID- 29347588 TI - Finite-size effects in canonical and grand-canonical quantum Monte Carlo simulations for fermions. AB - We introduce a quantum Monte Carlo method at finite temperature for interacting fermionic models in the canonical ensemble, where the conservation of the particle number is enforced. Although general thermodynamic arguments ensure the equivalence of the canonical and the grand-canonical ensembles in the thermodynamic limit, their approach to the infinite-volume limit is distinctively different. Observables computed in the canonical ensemble generically display a finite-size correction proportional to the inverse volume, whereas in the grand canonical ensemble the approach is exponential in the ratio of the linear size over the correlation length. We verify these predictions by quantum Monte Carlo simulations of the Hubbard model in one and two dimensions in the grand-canonical and the canonical ensemble. We prove an exact formula for the finite-size part of the free energy density, energy density and other observables in the canonical ensemble and relate this correction to a susceptibility computed in the corresponding grand-canonical ensemble. This result is confirmed by an exact computation of the one-dimensional classical Ising model in the canonical ensemble, which for classical models corresponds to the so-called fixed magnetization ensemble. Our method is useful for simulating finite systems which are not coupled to a particle bath, such as in nuclear or cold atom physics. PMID- 29347589 TI - Synchronization scenarios in the Winfree model of coupled oscillators. AB - Fifty years ago Arthur Winfree proposed a deeply influential mean-field model for the collective synchronization of large populations of phase oscillators. Here we provide a detailed analysis of the model for some special, analytically tractable cases. Adopting the thermodynamic limit, we derive an ordinary differential equation that exactly describes the temporal evolution of the macroscopic variables in the Ott-Antonsen invariant manifold. The low-dimensional model is then thoroughly investigated for a variety of pulse types and sinusoidal phase response curves (PRCs). Two structurally different synchronization scenarios are found, which are linked via the mutation of a Bogdanov-Takens point. From our results, we infer a general rule of thumb relating pulse shape and PRC offset with each scenario. Finally, we compare the exact synchronization threshold with the prediction of the averaging approximation given by the Kuramoto-Sakaguchi model. At the leading order, the discrepancy appears to behave as an odd function of the PRC offset. PMID- 29347590 TI - Emergent Levy behavior in single-cell stochastic gene expression. AB - Single-cell gene expression is inherently stochastic; its emergent behavior can be defined in terms of the chemical master equation describing the evolution of the mRNA and protein copy numbers as the latter tends to infinity. We establish two types of "macroscopic limits": the Kurtz limit is consistent with the classical chemical kinetics, while the Levy limit provides a theoretical foundation for an empirical equation proposed in N. Friedman et al., Phys. Rev. Lett. 97, 168302 (2006)PRLTAO0031-900710.1103/PhysRevLett.97.168302. Furthermore, we clarify the biochemical implications and ranges of applicability for various macroscopic limits and calculate a comprehensive analytic expression for the protein concentration distribution in autoregulatory gene networks. The relationship between our work and modern population genetics is discussed. PMID- 29347591 TI - Reconstruction of three-dimensional porous media using generative adversarial neural networks. AB - To evaluate the variability of multiphase flow properties of porous media at the pore scale, it is necessary to acquire a number of representative samples of the void-solid structure. While modern x-ray computer tomography has made it possible to extract three-dimensional images of the pore space, assessment of the variability in the inherent material properties is often experimentally not feasible. We present a method to reconstruct the solid-void structure of porous media by applying a generative neural network that allows an implicit description of the probability distribution represented by three-dimensional image data sets. We show, by using an adversarial learning approach for neural networks, that this method of unsupervised learning is able to generate representative samples of porous media that honor their statistics. We successfully compare measures of pore morphology, such as the Euler characteristic, two-point statistics, and directional single-phase permeability of synthetic realizations with the calculated properties of a bead pack, Berea sandstone, and Ketton limestone. Results show that generative adversarial networks can be used to reconstruct high resolution three-dimensional images of porous media at different scales that are representative of the morphology of the images used to train the neural network. The fully convolutional nature of the trained neural network allows the generation of large samples while maintaining computational efficiency. Compared to classical stochastic methods of image reconstruction, the implicit representation of the learned data distribution can be stored and reused to generate multiple realizations of the pore structure very rapidly. PMID- 29347592 TI - Diffusion, subdiffusion, and localization of active colloids in random post lattices. AB - Combining experiments and theory, we address the dynamics of self-propelled particles in crowded environments. We first demonstrate that motile colloids cruising at constant speed through random lattices undergo a smooth transition from diffusive to subdiffusive to localized dynamics upon increasing the obstacle density. We then elucidate the nature of these transitions by performing extensive simulations constructed from a detailed analysis of the colloid obstacle interactions. We evidence that repulsion at a distance and hard-core interactions both contribute to slowing down the long-time diffusion of the colloids. In contrast, the localization transition stems solely from excluded volume interactions and occurs at the void-percolation threshold. Within this critical scenario, equivalent to that of the random Lorentz gas, genuine asymptotic subdiffusion is found only at the critical density where the motile particles explore a fractal maze. PMID- 29347593 TI - Phase behavior and bulk structural properties of a microphase former with anisotropic competing interactions: A density functional theory study. AB - Using classical density functional theory, we investigate systems exhibiting interactions where a short-range anisotropic attractive force competes with a long-range spherically symmetric repulsive force. The former is modelled within Wertheim's first-order perturbation theory for patchy particles, and the repulsive part is assumed to be a Yukawa potential which is taken into account via a mean-field approximation. From previous studies of systems with spherically symmetric competing interactions, it is well known that such systems can exhibit stable bulk cluster phases (microphase separation) provided that the repulsion is sufficiently weak compared to the attraction. For the present model system, we find rich phase diagrams including both reentrant clustering and liquid-gas binodals. In particular, the model predicts inhomogeneous bulk phases at extremely low packing fractions, which cannot be observed in systems with isotropic competing interactions. PMID- 29347594 TI - Cell-size distribution and scaling in a one-dimensional Kolmogorov-Johnson-Mehl Avrami lattice model with continuous nucleation. AB - The Kolmogorov-Johnson-Mehl-Avrami (KJMA) growth model is considered on a one dimensional (1D) lattice. Cells can grow with constant speed and continuously nucleate on the empty sites. We offer an alternative mean-field-like approach for describing theoretically the dynamics and derive an analytical cell-size distribution function. Our method reproduces the same scaling laws as the KJMA theory and has the advantage that it leads to a simple closed form for the cell size distribution function. It is shown that a Weibull distribution is appropriate for describing the final cell-size distribution. The results are discussed in comparison with Monte Carlo simulation data. PMID- 29347595 TI - Coupling-enhanced stochastic resonance. AB - Stochastic resonance is analyzed in an array of nonlinear spatially coupled subsystems. Analytic expressions for the different steady-state solutions, for the rates of transitions between them in the presence of noise, and for the response to a weak external periodic forcing are derived. It is shown that the presence of spatial degrees of freedom modifies considerably the mechanisms of transitions between states and is responsible for a marked sensitivity of the response on the coupling constant and on the system size. PMID- 29347596 TI - Generalized fractional diffusion equations for subdiffusion in arbitrarily growing domains. AB - The ubiquity of subdiffusive transport in physical and biological systems has led to intensive efforts to provide robust theoretical models for this phenomena. These models often involve fractional derivatives. The important physical extension of this work to processes occurring in growing materials has proven highly nontrivial. Here we derive evolution equations for modeling subdiffusive transport in a growing medium. The derivation is based on a continuous-time random walk. The concise formulation of these evolution equations requires the introduction of a new, comoving, fractional derivative. The implementation of the evolution equation is illustrated with a simple model of subdiffusing proteins in a growing membrane. PMID- 29347597 TI - General purpose graphics-processing-unit implementation of cosmological domain wall network evolution. AB - Topological defects unavoidably form at symmetry breaking phase transitions in the early universe. To probe the parameter space of theoretical models and set tighter experimental constraints (exploiting the recent advances in astrophysical observations), one requires more and more demanding simulations, and therefore more hardware resources and computation time. Improving the speed and efficiency of existing codes is essential. Here we present a general purpose graphics processing-unit implementation of the canonical Press-Ryden-Spergel algorithm for the evolution of cosmological domain wall networks. This is ported to the Open Computing Language standard, and as a consequence significant speedups are achieved both in two-dimensional (2D) and 3D simulations. PMID- 29347598 TI - Electric generation and ratcheted transport of contact-charged drops. AB - We describe a simple microfluidic system that enables the steady generation and efficient transport of aqueous drops using only a constant voltage input. Drop generation is achieved through an electrohydrodynamic dripping mechanism by which conductive drops grow and detach from a grounded nozzle in response to an electric field. The now-charged drops are transported down a ratcheted channel by contact charge electrophoresis powered by the same voltage input used for drop generation. We investigate how the drop size, generation frequency, and transport velocity depend on system parameters such as the liquid viscosity, interfacial tension, applied voltage, and channel dimensions. The observed trends are well explained by a series of scaling analyses that provide insight into the dominant physical mechanisms underlying drop generation and ratcheted transport. We identify the conditions necessary for achieving reliable operation and discuss the various modes of failure that can arise when these conditions are violated. Our results demonstrate that simple electric inputs can power increasingly complex droplet operations with potential opportunities for inexpensive and portable microfluidic systems. PMID- 29347599 TI - Energy decay in a tapped granular column: Can a one-dimensional toy model provide insight into fully three-dimensional systems? AB - The decay of energy within particulate media subjected to an impulse is an issue of significant scientific interest, but also one with numerous important practical applications. In this paper, we study the dynamics of a granular system exposed to energetic impulses in the form of discrete taps from a solid surface. By considering a one-dimensional toy system, we develop a simple theory, which successfully describes the energy decay within the system following exposure to an impulse. We then extend this theory so as to make it applicable also to more realistic, three-dimensional granular systems, assessing the validity of the model through direct comparison with discrete particle method simulations. The theoretical form presented possesses several notable consequences; in particular, it is demonstrated that for suitably large systems, effects due to the bounding walls may be entirely neglected. We also establish the existence of a threshold system size above which a granular bed may be considered fully three dimensional. PMID- 29347600 TI - Liquidlike sloshing dynamics of monodisperse granulate. AB - Analogies between fluid flows and granular flows are useful because they pave the way for continuum treatments of granular media. However, in practice it is impossible to predict under what experimental conditions the dynamics of fluids and granulates are qualitatively similar. In the case of unsteadily driven systems no such analogy is known. For example, in a partially filled container subject to horizontal oscillations liquids slosh, whereas granular media of complex particles exhibit large-scale convection rolls. We here show that smooth monodisperse steel spheres exhibit liquidlike sloshing dynamics. Our findings highlight the role of particle material and geometry for the dynamics and phase transitions of the system. PMID- 29347601 TI - Chaos-assisted tunneling in the presence of Anderson localization. AB - Tunneling between two classically disconnected regular regions can be strongly affected by the presence of a chaotic sea in between. This phenomenon, known as chaos-assisted tunneling, gives rise to large fluctuations of the tunneling rate. Here we study chaos-assisted tunneling in the presence of Anderson localization effects in the chaotic sea. Our results show that the standard tunneling rate distribution is strongly modified by localization, going from the Cauchy distribution in the ergodic regime to a log-normal distribution in the strongly localized case, for both a deterministic and a disordered model. We develop a single-parameter scaling description which accurately describes the numerical data. Several possible experimental implementations using cold atoms, photonic lattices, or microwave billiards are discussed. PMID- 29347602 TI - Control of accuracy in the Wang-Landau algorithm. AB - The Wang-Landau (WL) algorithm has been widely used for simulations in many areas of physics. Our analysis of the WL algorithm explains its properties and shows that the difference of the largest eigenvalue of the transition matrix in the energy space from unity can be used to control the accuracy of estimating the density of states. Analytic expressions for the matrix elements are given in the case of the one-dimensional Ising model. The proposed method is further confirmed by numerical results for the one-dimensional and two-dimensional Ising models and also the two-dimensional Potts model. PMID- 29347603 TI - Asymmetric noise-induced large fluctuations in coupled systems. AB - Networks of interacting, communicating subsystems are common in many fields, from ecology, biology, and epidemiology to engineering and robotics. In the presence of noise and uncertainty, interactions between the individual components can lead to unexpected complex system-wide behaviors. In this paper, we consider a generic model of two weakly coupled dynamical systems, and we show how noise in one part of the system is transmitted through the coupling interface. Working synergistically with the coupling, the noise on one system drives a large fluctuation in the other, even when there is no noise in the second system. Moreover, the large fluctuation happens while the first system exhibits only small random oscillations. Uncertainty effects are quantified by showing how characteristic time scales of noise-induced switching scale as a function of the coupling between the two coupled parts of the experiment. In addition, our results show that the probability of switching in the noise-free system scales inversely as the square of reduced noise intensity amplitude, rendering the virtual probability of switching an extremely rare event. Our results showing the interplay between transmitted noise and coupling are also confirmed through simulations, which agree quite well with analytic theory. PMID- 29347604 TI - Capillary fluctuations of surface steps: An atomistic simulation study for the model Cu(111) system. AB - Molecular dynamics (MD) simulations are employed to investigate the capillary fluctuations of steps on the surface of a model metal system. The fluctuation spectrum, characterized by the wave number (k) dependence of the mean squared capillary-wave amplitudes and associated relaxation times, is calculated for <110> and <112> steps on the {111} surface of elemental copper near the melting temperature of the classical potential model considered. Step stiffnesses are derived from the MD results, yielding values from the largest system sizes of (37+/-1)meV/A[over ] for the different line orientations, implying that the stiffness is isotropic within the statistical precision of the calculations. The fluctuation lifetimes are found to vary by approximately four orders of magnitude over the range of wave numbers investigated, displaying a k dependence consistent with kinetics governed by step-edge mediated diffusion. The values for step stiffness derived from these simulations are compared to step free energies for the same system and temperature obtained in a recent MD-based thermodynamic integration (TI) study [Freitas, Frolov, and Asta, Phys. Rev. B 95, 155444 (2017)2469-995010.1103/PhysRevB.95.155444]. Results from the capillary fluctuation analysis and TI calculations yield statistically significant differences that are discussed within the framework of statistical-mechanical theories for configurational contributions to step free energies. PMID- 29347605 TI - Classical many-particle systems with unique disordered ground states. AB - Classical ground states (global energy-minimizing configurations) of many particle systems are typically unique crystalline structures, implying zero enumeration entropy of distinct patterns (aside from trivial symmetry operations). By contrast, the few previously known disordered classical ground states of many-particle systems are all high-entropy (highly degenerate) states. Here we show computationally that our recently proposed "perfect-glass" many particle model [Sci. Rep. 6, 36963 (2016)10.1038/srep36963] possesses disordered classical ground states with a zero entropy: a highly counterintuitive situation . For all of the system sizes, parameters, and space dimensions that we have numerically investigated, the disordered ground states are unique such that they can always be superposed onto each other or their mirror image. At low energies, the density of states obtained from simulations matches those calculated from the harmonic approximation near a single ground state, further confirming ground state uniqueness. Our discovery provides singular examples in which entropy and disorder are at odds with one another. The zero-entropy ground states provide a unique perspective on the celebrated Kauzmann-entropy crisis in which the extrapolated entropy of a supercooled liquid drops below that of the crystal. We expect that our disordered unique patterns to be of value in fields beyond glass physics, including applications in cryptography as pseudorandom functions with tunable computational complexity. PMID- 29347606 TI - Coupling of link- and node-ordering in the coevolving voter model. AB - We consider the process of reaching the final state in the coevolving voter model. There is a coevolution of state dynamics, where a node can copy a state from a random neighbor with probabilty 1-p and link dynamics, where a node can rewire its link to another node of the same state with probability p. That exhibits an absorbing transition to a frozen phase above a critical value of rewiring probability. Our analytical and numerical studies show that in the active phase mean values of magnetization of nodes n and links m tend to the same value that depends on initial conditions. In a similar way mean degrees of spins up and spins down become equal. The system obeys a special statistical conservation law since a linear combination of both types magnetizations averaged over many realizations starting from the same initial conditions is a constant of motion: Lambda=(1-p)MUm(t)+pn(t)=const., where MU is the mean node degree. The final mean magnetization of nodes and links in the active phase is proportional to Lambda while the final density of active links is a square function of Lambda. If the rewiring probability is above a critical value and the system separates into disconnected domains, then the values of nodes and links magnetizations are not the same and final mean degrees of spins up and spins down can be different. PMID- 29347607 TI - Direct measurement of the ballistic motion of a freely floating colloid in Newtonian and viscoelastic fluids. AB - A thermal colloid suspended in a liquid will transition from a short-time ballistic motion to a long-time diffusive motion. However, the transition between ballistic and diffusive motion is highly dependent on the properties and structure of the particular liquid. We directly observe a free floating tracer particle's ballistic motion and its transition to the long-time regime in both a Newtonian fluid and a viscoelastic Maxwell fluid. We examine the motion of the free particle in a Newtonian fluid and demonstrate a high degree of agreement with the accepted Clercx-Schram model for motion in a dense fluid. Measurements of the functional form of the ballistic-to-diffusive transition provide direct measurements of the temperature, viscosity, and tracer radius. We likewise measure the motion in a viscoelastic Maxwell fluid and find a significant disagreement between the theoretical asymptotic behavior and our measured values of the microscopic properties of the fluid. We observe a greatly increased effective mass for a freely moving particle and a decreased plateau modulus. PMID- 29347608 TI - Mapping and discrimination of networks in the complexity-entropy plane. AB - Complex networks are usually characterized in terms of their topological, spatial, or information-theoretic properties and combinations of the associated metrics are used to discriminate networks into different classes or categories. However, even with the present variety of characteristics at hand it still remains a subject of current research to appropriately quantify a network's complexity and correspondingly discriminate between different types of complex networks, like infrastructure or social networks, on such a basis. Here we explore the possibility to classify complex networks by means of a statistical complexity measure that has formerly been successfully applied to distinguish different types of chaotic and stochastic time series. It is composed of a network's averaged per-node entropic measure characterizing the network's information content and the associated Jenson-Shannon divergence as a measure of disequilibrium. We study 29 real-world networks and show that networks of the same category tend to cluster in distinct areas of the resulting complexity entropy plane. We demonstrate that within our framework, connectome networks exhibit among the highest complexity while, e.g., transportation and infrastructure networks display significantly lower values. Furthermore, we demonstrate the utility of our framework by applying it to families of random scale-free and Watts-Strogatz model networks. We then show in a second application that the proposed framework is useful to objectively construct threshold-based networks, such as functional climate networks or recurrence networks, by choosing the threshold such that the statistical network complexity is maximized. PMID- 29347609 TI - Noise-induced drift in two-dimensional anisotropic systems. AB - We study the isothermal Brownian dynamics of a particle in a system with spatially varying diffusivity. Due to the heterogeneity of the system, the particle's mean displacement does not vanish even if it does not experience any physical force. This phenomenon has been termed "noise-induced drift," and has been extensively studied for one-dimensional systems. Here, we examine the noise induced drift in a two-dimensional anisotropic system, characterized by a symmetric diffusion tensor with unequal diagonal elements. A general expression for the mean displacement vector is derived and presented as a sum of two vectors, depicting two distinct drifting effects. The first vector describes the tendency of the particle to drift toward the high diffusivity side in each orthogonal principal diffusion direction. This is a generalization of the well known expression for the noise-induced drift in one-dimensional systems. The second vector represents a novel drifting effect, not found in one-dimensional systems, originating from the spatial rotation in the directions of the principal axes. The validity of the derived expressions is verified by using Langevin dynamics simulations. As a specific example, we consider the relative diffusion of two transmembrane proteins, and demonstrate that the average distance between them increases at a surprisingly fast rate of several tens of micrometers per second. PMID- 29347610 TI - Relaxation time of the global order parameter on multiplex networks: The role of interlayer coupling in Kuramoto oscillators. AB - This work considers the time scales associated with the global order parameter and the interlayer synchronization of coupled Kuramoto oscillators on multiplexes. For two-layer multiplexes with an initially high degree of synchronization in each layer, the difference between the average phases in each layer is analyzed from two different perspectives: the spectral analysis and the nonlinear Kuramoto model. Both viewpoints confirm that the prior time scales are inversely proportional to the interlayer coupling strength. Thus, increasing the interlayer coupling always shortens the transient regimes of both the global order parameter and the interlayer synchronization. Surprisingly, the analytical results show that the convergence of the global order parameter is faster than the interlayer synchronization, and the latter is generally faster than the global synchronization of the multiplex. The formalism also outlines the effects of frequencies on the difference between the average phases of each layer, and it identifies the conditions for an oscillatory behavior. Computer simulations are in fairly good agreement with the analytical findings, and they reveal that the time scale of the global order parameter is half the size of the time scale of the multiplex, if not smaller. PMID- 29347611 TI - Iterated function systems for DNA replication. AB - The kinetic equations of DNA replication are shown to be exactly solved in terms of iterated function systems, running along the template sequence and giving the statistical properties of the copy sequences, as well as the kinetic and thermodynamic properties of the replication process. With this method, different effects due to sequence heterogeneity can be studied, in particular, a transition between linear and sublinear growths in time of the copies, and a transition between continuous and fractal distributions of the local velocities of the DNA polymerase along the template. The method is applied to the human mitochondrial DNA polymerase gamma without and with exonuclease proofreading. PMID- 29347612 TI - Biological cell as a soft magnetoelectric material: Elucidating the physical mechanisms underpinning the detection of magnetic fields by animals. AB - Sharks, birds, bats, turtles, and many other animals can detect magnetic fields. Aside from using this remarkable ability to exploit the terrestrial magnetic field map to sense direction, a subset is also able to implement a version of the so-called geophysical positioning system. How do these animals detect magnetic fields? The answer to this rather deceptively simple question has proven to be quite elusive. The currently prevalent theories, while providing interesting insights, fall short of explaining several aspects of magnetoreception. For example, minute magnetic particles have been detected in magnetically sensitive animals. However, how is the detected magnetic field converted into electrical signals given any lack of experimental evidence for relevant electroreceptors? In principle, a magnetoelectric material is capable of converting magnetic signals into electricity (and vice versa). This property, however, is rare and restricted to a rather small set of exotic hard crystalline materials. Indeed, such elements have never been detected in the animals studied so far. In this work we quantitatively outline the conditions under which a biological cell may detect a magnetic field and convert it into electrical signals detectable by biological cells. Specifically, we prove the existence of an overlooked strain-mediated mechanism and show that most biological cells can act as nontrivial magnetoelectric materials provided that the magnetic permeability constant is only slightly more than that of a vacuum. The enhanced magnetic permeability is easily achieved by small amounts of magnetic particles that have been experimentally detected in magnetosensitive animals. Our proposed mechanism appears to explain most of the experimental observations related to the physical basis of magnetoreception. PMID- 29347613 TI - Test of the diffusing-diffusivity mechanism using near-wall colloidal dynamics. AB - The mechanism of diffusing diffusivity predicts that, in environments where the diffusivity changes gradually, the displacement distribution becomes non Gaussian, even though the mean-square displacement grows linearly with time. Here, we report single-particle tracking measurements of the diffusion of colloidal spheres near a planar substrate. Because the local effective diffusivity is known, we have been able to carry out a direct test of this mechanism for diffusion in inhomogeneous media. PMID- 29347614 TI - Analysis of crackling noise using the maximum-likelihood method: Power-law mixing and exponential damping. AB - Crackling noise can be initiated by competing or coexisting mechanisms. These mechanisms can combine to generate an approximate scale invariant distribution that contains two or more contributions. The overall distribution function can be analyzed, to a good approximation, using maximum-likelihood methods and assuming that it follows a power law although with nonuniversal exponents depending on a varying lower cutoff. We propose that such distributions are rather common and originate from a simple superposition of crackling noise distributions or exponential damping. PMID- 29347615 TI - Publisher's Note: Critical and Griffiths-McCoy singularities in quantum Ising spin glasses on d-dimensional hypercubic lattices: A series expansion study [Phys. Rev. E 96, 022139 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.96.022139. PMID- 29347616 TI - Design and investigation of de Vries liquid crystals based on 5-phenyl-pyrimidine and (R,R)-2,3-epoxyhexoxy backbone. AB - Calamitic liquid crystals based on 5-phenyl-pyrimidine derivatives have been designed, synthesized, and characterized. The 5-phenyl pyrimidine core was functionalized with a chiral (R,R)-2,3-epoxyhexoxy chain on one side and either siloxane or perfluoro terminated chains on the opposite side. The one involving a perfluorinated chain shows SmA^{*} phase over a wide temperature range of 82 degrees C, whereas the siloxane analog exhibits both SmA^{*} and SmC^{*} phases over a broad range of temperatures, and a weak first-order SmA^{*}-SmC^{*} transition is observed. For the siloxane analog, the reduction factor for the layer shrinkage R (relative to its thickness at the SmA^{*}-SmC^{*} transition temperature, T_{AC}) is ~0.373, and layer shrinkage is 1.7% at a temperature of 13 degrees C below the T_{AC}. This compound is considered to have "de Vries smectic" characteristics with the de Vries coefficient C_{deVries} of ~0.86 on the scale of zero (maximum-layer shrinkage) to 1 (zero-layer shrinkage). A three parameter mean-field model is introduced for the orientational distribution function (ODF) to reproduce the electro-optic properties. This model explains the experimental results and leads to the ODF, which exhibits a crossover from the sugar-loaf to diffuse-cone ODF some 3 degrees C above T_{AC}. PMID- 29347617 TI - Force percolation transition of jammed granular systems. AB - The mechanical and transport properties of jammed materials originate from an underlying percolating network of contact forces between the grains. Using extensive simulations we investigate the force-percolation transition of this network, where two particles are considered as linked if their interparticle force overcomes a threshold. We show that this transition belongs to the random percolation universality class, thus ruling out the existence of long-range correlations between the forces. Through a combined size and pressure scaling for the percolative quantities, we show that the continuous force percolation transition evolves into the discontinuous jamming transition in the zero pressure limit, as the size of the critical region scales with the pressure. PMID- 29347618 TI - Universality of oscillating boiling in Leidenfrost transition. AB - The Leidenfrost transition leads a boiling system to the boiling crisis, a state in which the liquid loses contact with the heated surface due to excessive vapor generation. Here, using experiments of liquid droplets boiling on a heated surface, we report a phenomenon, termed oscillating boiling, at the Leidenfrost transition. We show that oscillating boiling results from the competition between two effects: separation of liquid from the heated surface due to localized boiling and rewetting. We argue theoretically that the Leidenfrost transition can be predicted based on its link with the oscillating boiling phenomenon and verify the prediction experimentally for various liquids. PMID- 29347619 TI - Topological defects in an unconfined nematic fluid induced by single and double spherical colloidal particles. AB - We present numerical solutions to the Landau-de Gennes free-energy model under the one-constant approximation for systems of single and double spherical colloidal particles immersed in an otherwise uniformly aligned nematic liquid crystal. A perfect homeotropic surface anchoring of liquid-crystal molecules on the spherical surface is considered. A large parameter space is carefully examined, including those in the free-energy model and those describing the dimer configurations and the background liquid-crystal orientation. The stability of the resulting liquid-crystal defects appearing in the neighborhood of the colloidal dimer pair is analyzed in light of the numerical results for their free energies. A number of scenarios are considered: a free dimer pair in a nematic fluid where the free-energy ground states are described in terms of a phase diagram, and a constrained dimer pair where the interparticle distance and the relative orientation of the distance vector to the nematic director can be manipulated. We pay particular attention to the nonsymmetric solutions, which yield several metastable defect states that can be observed in real systems. The high-precision numerical calculations are based on a spectral method, which is an enabling factor that allows us to compare the subtle difference in the free energies of different defect structures. PMID- 29347620 TI - Suppression of crystalline fluctuations by competing structures in a supercooled liquid. AB - We propose a geometrical characterization of amorphous liquid structures that suppress crystallization by competing locally with crystalline order. We introduce for this purpose the crystal affinity of a liquid, a simple measure of its propensity to accumulate local crystalline structures on cooling. This quantity is explicitly related to the high-temperature structural covariance between local fluctuations in crystal order and that of competing liquid structures: favoring a structure that, due to poor overlap properties, anticorrelates with crystalline order reduces the affinity of the liquid. Using a lattice model of a liquid, we show that this quantity successfully predicts the tendency of a liquid to either accumulate or suppress local crystalline fluctuations with increasing supercooling. We demonstrate that the crystal affinity correlates strongly with the crystal nucleation rate and the crystal liquid interfacial free energy of the low-temperature liquid, making our theory a predictive tool to determine which amorphous structures enhance glass-forming ability. PMID- 29347621 TI - Transient anomalous diffusion regimes in reversible adsorbing systems. AB - A solvable, minimal model of diffusion in the presence of a reversible adsorption site is investigated. We show that the diffusive particles are influenced by the adsorbing site on transient times when they have anomalous subdiffusive behavior. However, the particle dispersion law crosses over to the normal diffusive regime on asymptotically long times. The subdiffusive regime is characterized by a t^{1/4} transient scaling with the same exponent as for the irreversible adsorption. On this transient time scale dominated by particle adsorption, there is a depletion of particles near the adsorbing site, and the typical width of the depletion zone grows in time as t^{1/4} with the same exponent as the subdiffusive dispersion. We show that having a nonzero desorption probability for the adsorbed particles produces a crossover towards normal diffusion on time scales larger than a characteristic reactive time, which we show scales with diffusivity and the adsorption site reactivity. PMID- 29347622 TI - Transport regimes spanning magnetization-coupling phase space. AB - The manner in which transport properties vary over the entire parameter-space of coupling and magnetization strength is explored. Four regimes are identified based on the relative size of the gyroradius compared to other fundamental length scales: the collision mean free path, Debye length, distance of closest approach, and interparticle spacing. Molecular dynamics simulations of self-diffusion and temperature anisotropy relaxation spanning the parameter space are found to agree well with the predicted boundaries. Comparison with existing theories reveals regimes where they succeed, where they fail, and where no theory has yet been developed. PMID- 29347623 TI - Origin of the inertial deviation from Darcy's law: An investigation from a microscopic flow analysis on two-dimensional model structures. AB - Inertial flow in porous media occurs in many situations of practical relevance among which one can cite flows in column reactors, in filters, in aquifers, or near wells for hydrocarbon recovery. It is characterized by a deviation from Darcy's law that leads to a nonlinear relationship between the pressure drop and the filtration velocity. In this work, this deviation, also known as the nonlinear, inertial, correction to Darcy's law, which is subject to controversy upon its origin and dependence on the filtration velocity, is studied through numerical simulations. First, the microscopic flow problem was solved computationally for a wide range of Reynolds numbers up to the limit of steady flow within ordered and disordered porous structures. In a second step, the macroscopic characteristics of the porous medium and flow (permeability and inertial correction tensors) that appear in the macroscale model were computed. From these results, different flow regimes were identified: (1) the weak inertia regime where the inertial correction has a cubic dependence on the filtration velocity and (2) the strong inertia (Forchheimer) regime where the inertial correction depends on the square of the filtration velocity. However, the existence and origin of those regimes, which depend also on the microstructure and flow orientation, are still not well understood in terms of their physical interpretations, as many causes have been conjectured in the literature. In the present study, we provide an in-depth analysis of the flow structure to identify the origin of the deviation from Darcy's law. For accuracy and clarity purposes, this is carried out on two-dimensional structures. Unlike the previous studies reported in the literature, where the origin of inertial effects is often identified on a heuristic basis, a theoretical justification is presented in this work. Indeed, a decomposition of the convective inertial term into two components is carried out formally allowing the identification of a correlation between the flow structure and the different inertial regimes. These components correspond to the curvature of the flow streamlines weighted by the local fluid kinetic energy on the one hand and the distribution of the kinetic energy along these lines on the other hand. In addition, the role of the recirculation zones in the occurrence and in the form of the deviation from Darcy's law was thoroughly analyzed. For the porous structures under consideration, it is shown that (1) the kinetic energy lost in the vortices is insignificant even at high filtration velocities and (2) the shape of the flow streamlines induced by the recirculation zones plays an important role in the variation of the flow structure, which is correlated itself to the different flow regimes. PMID- 29347624 TI - Non-Poisson renewal events and memory. AB - We study two different forms of fluctuation-dissipation processes generating anomalous relaxations to equilibrium of an initial out-of-equilibrium condition, the former being based on a stationary although very slow correlation function and the latter characterized by the occurrence of crucial events, namely, non Poisson renewal events, incompatible with the stationary condition. Both forms of regression to equilibrium have the same nonexponential Mittag-Leffler structure. We analyze the single trajectories of the two processes by recording the time distances between two consecutive origin recrossings and establishing the corresponding waiting time probability density function (PDF), psi(t). In the former case, with no crucial events, psi(t) is an exponential, and in the latter case, with crucial events, psi(t) is an inverse power law PDF with a diverging first moment. We discuss the consequences that this result is expected to have for the correct interpretation of some anomalous relaxation processes. PMID- 29347625 TI - Modeling of the interaction of an x-ray free-electron laser with large finite samples. AB - We describe a model for the study of the interaction of short x-ray free-electron laser (XFEL) pulses with large finite samples. Hydrodynamics is solved in one dimensional planar geometry with consideration of the electron-ion energy exchange and of the possible elastoplastic behavior. From a time-dependent calculation of the complex refractive index and of the underlying atomic physics, XFEL energy deposition is modeled through a calculation of the radiation field in the material. In the case of hard x-ray irradiation, energetic electrons induced by the XFEL absorption can propagate and deposit their energy outside the interaction region. Simulations of the interaction of hard x-ray ultrashort pulses with solid materials Ru and Si at different grazing incidence angles are presented and discussed. The results obtained demonstrate the potential of this approach to predict damage dynamics for materials of interest for x-ray optics. PMID- 29347626 TI - Langevin equation elucidates the mechanism of the Rayleigh-Benard instability by coupling molecular motions and macroscopic fluctuations. AB - It is well known that Brownian motion can be described using Langevin equation. In this paper we extend the application of the Langevin equation to the Rayleigh Benard (RB) flow, assuming that each molecule in the system is a Brownian particle colliding with its surrounding molecules. The phenomenon of thermal instability, changing from a conductive to a convective state, is well reproduced by Langevin dynamics simulations. The roles of the drag force and the random force terms in the Langevin equation in triggering thermal instability are elucidated via numerical tests. Furthermore, we demonstrate that the strength of the fluctuation correlations increases as the Rayleigh number approaches the critical value, and the characteristics of the fluctuation correlations below the onset of instability foreshadow the form of the convective patterns emerging above the critical point. The Langevin equation, together with the form of the fluctuation correlations, sheds new light on the mechanism of the RB instability. PMID- 29347627 TI - Static and dynamic properties of two-dimensional Coulomb clusters. AB - We study the temperature dependence of static and dynamic responses of Coulomb interacting particles in two-dimensional confinements across the crossover from solid- to liquid-like behaviors. While static correlations that investigate the translational and bond orientational order in the confinements show the footprints of hexatic-like phase at low temperatures, dynamics of the particles slow down considerably in this phase, reminiscent of a supercooled liquid. Using density correlations, we probe long-lived heterogeneities arising from the interplay of the irregularity in the confinement and long-range Coulomb interactions. The relaxation at multiple time scales show stretched-exponential decay of spatial correlations in irregular traps. Temperature dependence of characteristic time scales, depicting the structural relaxation of the system, show striking similarities with those observed for the glassy systems, indicating that some of the key signatures of supercooled liquids emerge in confinements with lower spatial symmetries. PMID- 29347628 TI - Opposing effects of cationic antimicrobial peptides and divalent cations on bacterial lipopolysaccharides. AB - The permeability of the bacterial outer membrane, enclosing Gram-negative bacteria, depends on the interactions of the outer, lipopolysaccharide (LPS) layer, with surrounding ions and molecules. We present a coarse-grained model for describing how cationic amphiphilic molecules (e.g., antimicrobial peptides) interact with and perturb the LPS layer in a biologically relevant medium, containing monovalent and divalent salt ions (e.g., Mg^{2+}). In our approach, peptide binding is driven by electrostatic and hydrophobic interactions and is assumed to expand the LPS layer, eventually priming it for disruption. Our results suggest that in parameter ranges of biological relevance (e.g., at micromolar concentrations) the antimicrobial peptide magainin 2 effectively disrupts the LPS layer, even though it has to compete with Mg^{2+} for the layer. They also show how the integrity of LPS is restored with an increasing concentration of Mg^{2+}. Using the approach, we make a number of predictions relevant for optimizing peptide parameters against Gram-negative bacteria and for understanding bacterial strategies to develop resistance against cationic peptides. PMID- 29347629 TI - Perturbative dynamics of open quantum systems by renormalization group method. AB - We analyze perturbative dynamics of a composite system consisting of a quantum mechanical system and an environment by the renormalization group (RG) method. The solution obtained from the RG method has no secular terms and approximates the exact solution for a long time interval. Moreover, the RG method causes a reduction of the dynamics of the composite system under some assumptions. We show that this reduced dynamics is closely related to a quantum master equation for the quantum mechanical system. We compare this dynamics with the exact dynamics in an exactly solvable spin-boson model. PMID- 29347630 TI - Temperature measurement of hohlraum radiation for energy loss experiments in indirectly laser heated carbon plasma. AB - For ion energy loss measurements in plasmas with near solid densities, an indirect laser heating scheme for carbon foils has been developed at GSI Helmholtzzentrum fur Schwerionenforschung GmbH (Darmstadt, Germany). To achieve an electron density of 10^{22}cm^{3} and an electron temperature of 10-30eV, two carbon foils with an areal density of 100MUg/cm^{2} heated in a double-hohlraum configuration have been chosen. In this paper we present the results of temperature measurements of both primary and secondary hohlraums for two different hohlraum designs. They were heated by the PHELIX laser with a wavelength of 527nm and an energy of 150J in 1.5ns. For this purpose the temperature has been investigated by an x-ray streak camera with a transmission grating as the dispersive element. PMID- 29347631 TI - Phase transitions in restricted Boltzmann machines with generic priors. AB - We study generalized restricted Boltzmann machines with generic priors for units and weights, interpolating between Boolean and Gaussian variables. We present a complete analysis of the replica symmetric phase diagram of these systems, which can be regarded as generalized Hopfield models. We underline the role of the retrieval phase for both inference and learning processes and we show that retrieval is robust for a large class of weight and unit priors, beyond the standard Hopfield scenario. Furthermore, we show how the paramagnetic phase boundary is directly related to the optimal size of the training set necessary for good generalization in a teacher-student scenario of unsupervised learning. PMID- 29347632 TI - Dynamics of a thermally driven film climbing the outside of a vertical cylinder. AB - The dynamics of a film climbing the outside of a vertical cylinder under the competing effects of a thermally driven surface tension gradient and gravity is examined through numerical simulations of a thin-film model for the film height. The model, including boundary conditions, depends on three parameters, the scaled cylinder radius R[over ], the upstream film height h_{infinity}, and the downstream precursor film thickness b, and reduces to the model for Marangoni driven film climbing a vertical plate in the limit R[over ]->infinity. The axisymmetric advancing front displays dynamics similar to that found along a vertical plate where, depending on h_{infinity}, the film forms a single Lax shock, an undercompressive double shock, or a rarefaction-undercompressive shock. A linear stability analysis of the Lax shock reveals the number of fingers that form along the contact line increases linearly with cylinder circumference while no fingers form for sufficiently small cylinders (below R[over ]~1.15 when b=0.1). The substrate curvature controls the height of the Lax shock, bounds on h_{infinity} that define the three distinct solutions, and the maximum growth rate of contact line perturbations to the Lax shock when R[over ]=O(1), whereas the three solutions and the stability of the Lax shock converge to the behavior one observes on a vertical plate when R[over ]>=O(10). An energy analysis reveals that the azimuthal curvatures of the base state and perturbation, which arise from the annular geometry of the film, promote instability of the advancing contact line. PMID- 29347633 TI - Stochastic thermodynamics of interacting degrees of freedom: Fluctuation theorems for detached path probabilities. AB - Systems with interacting degrees of freedom play a prominent role in stochastic thermodynamics. Our aim is to use the concept of detached path probabilities and detached entropy production for bipartite Markov processes and elaborate on a series of special cases including measurement-feedback systems, sensors, and hidden Markov models. For these special cases we show that fluctuation theorems involving the detached entropy production recover known results which have been obtained separately before. Additionally, we show that the fluctuation relation for the detached entropy production can be used in model selection for data stemming from a hidden Markov model. We discuss the relation to previous approaches including those which use information flow or learning rate to quantify the influence of one subsystem on the other. In conclusion, we present a complete framework with which to find fluctuation relations for coupled systems. PMID- 29347634 TI - Strong diffusion formulation of Markov chain ensembles and its optimal weaker reductions. AB - : Two self-contained diffusion formulations, in the form of coupled stochastic differential equations, are developed for the temporal evolution of state densities over an ensemble of Markov chains evolving independently under a common transition rate matrix. Our first formulation derives from Kurtz's strong approximation theorem of density-dependent Markov jump processes [Stoch. PROCESS: Their Appl. 6, 223 (1978)STOPB70304-414910.1016/0304-4149(78)90020-0] and, therefore, strongly converges with an error bound of the order of lnN/N for ensemble size N. The second formulation eliminates some fluctuation variables, and correspondingly some noise terms, within the governing equations of the strong formulation, with the objective of achieving a simpler analytic formulation and a faster computation algorithm when the transition rates are constant or slowly varying. There, the reduction of the structural complexity is optimal in the sense that the elimination of any given set of variables takes place with the lowest attainable increase in the error bound. The resultant formulations are supported by numerical simulations. PMID- 29347635 TI - Classifying Potts critical lines. AB - We use scale invariant scattering theory to exactly determine the lines of renormalization group fixed points invariant under the permutational symmetry S_{q} in two dimensions, and we show how one of these scattering solutions describes the ferromagnetic and square lattice antiferromagnetic critical lines of the q-state Potts model. Other solutions we determine should correspond to new critical lines. In particular, we obtain that a S_{q}-invariant fixed point can be found up to the maximal value q=(7+sqrt[17])/2. This is larger than the usually assumed maximal value 4 and leaves room for a second-order antiferromagnetic transition at q=5. PMID- 29347636 TI - Glassy swirls of active dumbbells. AB - Is an active glass different from a conventional passive glass? To address this, we study the dynamics of a dense binary mixture of soft dumbbells, each subject to an active propulsion force and thermal fluctuations. This dense assembly shows dynamical arrest, first to a translational and then to a rotational glass, as one reduces temperature T or the self-propulsion force f. We monitor the dynamics along an iso-relaxation-time contour in the (T-f) plane. We find dramatic differences both in the fragility and in the nature of dynamical heterogeneity, which characterize the onset of glass formation-the activity-induced glass exhibits large swirls or vortices, whose scale is set by activity, and it appears to diverge as one approaches the glass transition. This large collective swirling movement should have implications for collective cell migration in epithelial layers. We construct continuum hydrodynamic equations for the simulated system, and we show that the observed behavior of this growing dynamic length scale can be understood from these equations. PMID- 29347637 TI - Ideal radiation source for plasma spectroscopy generated by laser ablation. AB - Laboratory plasmas inherently exhibit temperature and density gradients leading to complex investigations. We show that plasmas generated by laser ablation can constitute a robust exception to this. Supported by emission features not observed with other sources, we achieve plasmas of various compositions which are both uniform and in local thermodynamic equilibrium. These properties characterize an ideal radiation source opening multiple perspectives in plasma spectroscopy. The finding also constitutes a breakthrough in the analytical field as fast analyses of complex materials become possible. PMID- 29347638 TI - Effects of group velocity and multiplasmon resonances on the modulation of Langmuir waves in a degenerate plasma. AB - We study the nonlinear wave modulation of Langmuir waves (LWs) in a fully degenerate plasma. Using the Wigner-Moyal equation coupled to the Poisson equation and the multiple scale expansion technique, a modified nonlocal nonlinear Schrodinger (NLS) equation is derived which governs the evolution of LW envelopes in degenerate plasmas. The nonlocal nonlinearity in the NLS equation appears due to the group velocity and multiplasmon resonances, i.e., resonances induced by the simultaneous particle absorption of multiple wave quanta. We focus on the regime where the resonant velocity of electrons is larger than the Fermi velocity and thereby the linear Landau damping is forbidden. As a result, the nonlinear wave-particle resonances due to the group velocity and multiplasmon processes are the dominant mechanisms for wave-particle interaction. It is found that in contrast to classical or semiclassical plasmas, the group velocity resonance does not necessarily give rise the wave damping in the strong quantum regime where hk~mv_{F} with h denoting the reduced Planck's constant, m the electron mass, and v_{F} the Fermi velocity; however, the three-plasmon process plays a dominant role in the nonlinear Landau damping of wave envelopes. In this regime, the decay rate of the wave amplitude is also found to be higher compared to that in the modest quantum regime where the multiplasmon effects are forbidden. PMID- 29347639 TI - Experimental realization of a minimal microscopic heat engine. AB - Microscopic heat engines are microscale systems that convert energy flows between heat reservoirs into work or systematic motion. We have experimentally realized a minimal microscopic heat engine. It consists of a colloidal Brownian particle optically trapped in an elliptical potential well and simultaneously coupled to two heat baths at different temperatures acting along perpendicular directions. For a generic arrangement of the principal directions of the baths and the potential, the symmetry of the system is broken, such that the heat flow drives a systematic gyrating motion of the particle around the potential minimum. Using the experimentally measured trajectories, we quantify the gyrating motion of the particle, the resulting torque that it exerts on the potential, and the associated heat flow between the heat baths. We find excellent agreement between the experimental results and the theoretical predictions. PMID- 29347640 TI - Thermodynamic cost for classical counterdiabatic driving. AB - Motivated by the recent growing interest about the thermodynamic cost of shortcuts to adiabaticity, we consider the cost of driving a classical system by the so-called counterdiabatic driving (CD). To do so, we proceed in three steps: first we review a general definition recently put forward in the literature for the thermodynamic cost of driving a Hamiltonian system; then we provide a new complementary definition of cost, which is of particular relevance for cases where the average excess work vanishes; finally, we apply our general framework to the case of CD. Interestingly, we find that in such a case our results are the exact classical counterparts of those reported by Funo et al. [Phys. Rev. Lett. 118, 100602 (2017)PRLTAO0031-900710.1103/PhysRevLett.118.100602]. In particular we show that a universal trade-off between speed and cost for CD also exists in the classical case. To illustrate our points we consider the example of a time dependent harmonic oscillator subject to different strategies of adiabatic control. PMID- 29347641 TI - Sound-mediated stable configurations for polystyrene particles. AB - Here we report an experimental observation of the self-organization effect of polystyrene particles formed by acoustically induced interaction forces. Two types of stable configurations are observed experimentally: one is mechanically equilibrium and featured by nonzero interparticle separations, and the other corresponds to a closely packed assembly, which is created by strong attractions among the aggregated particles. For the former case involving two or three particles, the most probable interparticle separations (counted for numerous independent initial arrangements) agree well with the theoretical predictions. For the latter case, the number of the final stable configurations grows with the particle number, and the occurrence probability of each configuration is interpreted by a simple geometric model. PMID- 29347642 TI - Carpet cloak for water waves. AB - Cloaking is a challenging topic in the field of wave motion, and is of significant theoretical value. In this article, a type of carpet cloak has been theoretically designed for water waves by using the effective medium and transformation theory. This carpet cloak device, created by a three-dimensional printer, is composed of a periodic structure which realizes the equivalent anisotropic water depth. We demonstrate its excellent cloaking performance numerically and experimentally in a wide range of frequencies and angles of incidence, with low wave attenuation characteristics and simple device realization of this carpet cloak illustrating that water wave transformation is a powerful method with which to manipulate water waves. PMID- 29347643 TI - Nonhelical turbulence and the inverse transfer of energy: A parameter study. AB - We explore the phenomenon of the recently discovered inverse transfer of energy from small to large scales in decaying magnetohydrodynamical turbulence by Brandenburg et al. [Phys. Rev. Lett. 114, 075001 (2015)PRLTAO0031 900710.1103/PhysRevLett.114.075001], even for nonhelical magnetic fields. For this investigation we mainly employ the Pencil Code performing a parameter study, where we vary the Prandtl number, the kinematic viscosity, and the initial spectrum. We find that to get a decay that exhibits this inverse transfer, large Reynolds numbers (O~10^{3}) are needed and low Prandtl numbers of the order unity Pr=1 are preferred. Compared to helical MHD turbulence, though, the inverse transfer is much less efficient in transferring magnetic energy to larger scales than the well-known effect of the inverse cascade. Hence, applying the inverse transfer to the magnetic field evolution in the Early Universe, we question whether the nonhelical inverse transfer is effective enough to explain the observed void magnetic fields if a magnetogenesis scenario during the electroweak phase transition is assumed. PMID- 29347644 TI - Adiabatic cooling processes in frustrated magnetic systems with pyrochlore structure. AB - We investigate in detail the process of adiabatic cooling in the framework of the exactly solvable antiferromagnetic spin-1/2 Ising model in the presence of the external magnetic field on an approximate lattice with pyrochlore structure. The behavior of the entropy of the model is studied and exact values of the residual entropies of all ground states are found. The temperature variation of the system under adiabatic (de)magnetization is investigated and the central role of the macroscopically degenerated ground states in cooling processes is explicitly demonstrated. It is shown that the model parameter space of the studied geometrically frustrated system is divided into five disjunct regions with qualitatively different processes of the adiabatic cooling. The effectiveness of the adiabatic (de)magnetization cooling in the studied model is compared to the corresponding processes in paramagnetic salts. It is shown that the processes of the adiabatic cooling in the antiferromagnetic frustrated systems are much more effective especially in nonzero external magnetic fields. It means that the frustrated magnetic materials with pyrochlore structure can be considered as very promising refrigerants mainly in the situations with nonzero final values of the magnetic field. PMID- 29347645 TI - Geometry and the onset of rigidity in a disordered network. AB - Disordered spring networks that are undercoordinated may abruptly rigidify when sufficient strain is applied. Since the deformation in response to applied strain does not change the generic quantifiers of network architecture, the number of nodes and the number of bonds between them, this rigidity transition must have a geometric origin. Naive, degree-of-freedom-based mechanical analyses such as the Maxwell-Calladine count or the pebble game algorithm overlook such geometric rigidity transitions and offer no means of predicting or characterizing them. We apply tools that were developed for the topological analysis of zero modes and states of self-stress on regular lattices to two-dimensional random spring networks and demonstrate that the onset of rigidity, at a finite simple shear strain gamma^{?}, coincides with the appearance of a single state of self-stress, accompanied by a single floppy mode. The process conserves the topologically invariant difference between the number of zero modes and the number of states of self-stress but imparts a finite shear modulus to the spring network. Beyond the critical shear, the network acquires a highly anisotropic elastic modulus, resisting further deformation most strongly in the direction of the rigidifying shear. We confirm previously reported critical scaling of the corresponding differential shear modulus. In the subcritical regime, a singular value decomposition of the network's compatibility matrix foreshadows the onset of rigidity by way of a continuously vanishing singular value corresponding to the nascent state of self-stress. PMID- 29347646 TI - Marangoni effect on small-amplitude capillary waves in viscous fluids. AB - We derive a general integro-differential equation for the transient behavior of small-amplitude capillary waves on the planar surface of a viscous fluid in the presence of the Marangoni effect. The equation is solved for an insoluble surfactant solution in concentration below the critical micelle concentration undergoing convective-diffusive surface transport. The special case of a diffusion-driven surfactant is considered near the the critical damping wavelength. The Marangoni effect is shown to contribute to the overall damping mechanism, and a first-order term correction to the critical wavelength with respect to the surfactant concentration difference and the Schmidt number is proposed. PMID- 29347647 TI - Fast and slow domino regimes in transient network dynamics. AB - It is well known that the addition of noise to a multistable dynamical system can induce random transitions from one stable state to another. For low noise, the times between transitions have an exponential tail and Kramers' formula gives an expression for the mean escape time in the asymptotic limit. If a number of multistable systems are coupled into a network structure, a transition at one site may change the transition properties at other sites. We study the case of escape from a "quiescent" attractor to an "active" attractor in which transitions back can be ignored. There are qualitatively different regimes of transition, depending on coupling strength. For small coupling strengths, the transition rates are simply modified but the transitions remain stochastic. For large coupling strengths, transitions happen approximately in synchrony-we call this a "fast domino" regime. There is also an intermediate coupling regime where some transitions happen inexorably but with a delay that may be arbitrarily long-we call this a "slow domino" regime. We characterize these regimes in the low noise limit in terms of bifurcations of the potential landscape of a coupled system. We demonstrate the effect of the coupling on the distribution of timings and (in general) the sequences of escapes of the system. PMID- 29347648 TI - Nonreciprocal wave transmission through an extended discrete nonlinear Schrodinger dimer. AB - We analyze a one-dimensional extended discrete nonlinear Schrodinger (DNLS) dimer model for nonreciprocal wave transmission. The extension corresponds to the addition of a nonlocal or intersite nonlinear response in addition to a purely cubic local (on-site) nonlinear response, which refines the purely cubic model and aligns to more realistic situations. We observe that a diodelike action persists in the extended case; however, the inclusion of nonlocal response tends to reduce the diode action. We show that this extension results in achieving the diode effect at lower incoming intensities as compared to the purely cubic case. We also report that a nearly perfect diode action is possible in the extended case for a higher level of asymmetry between on-site potentials than its cubic counterpart. Moreover, we vary different site-dependent parameters to probe for regimes of a better diode effect within this extended model. We also present the corresponding stability analysis for the exact stationary solutions to the extended DNLS equation, we discuss the bifurcation behavior in detail, and we explicitly give the regions of stability. PMID- 29347649 TI - Pressure and flow of exponentially self-correlated active particles. AB - Microscopic swimming particles, which dissipate energy to execute persistent directed motion, are a classic example of a nonequilibrium system. We investigate the noninteracting Ornstein-Uhlenbeck Particle (OUP), which is propelled through a viscous medium by a force which is correlated over a finite time. We obtain an exact expression for the steady-state phase-space density of a single OUP confined by a quadratic potential, and use the result to explore more complex geometries, both through analytical approximations and numerical simulations. In a "Casimir"-style setup involving two narrowly spaced walls, we describe a particle-trapping phenomenon, which leads to a repulsive effective interaction between the walls, while in a two-dimensional annulus geometry, we observe net stresses which resemble the Laplace pressure. PMID- 29347650 TI - Kinetics and thermodynamics of a driven open quantum system. AB - Redfield theory provides a closed kinetic description of a quantum system in weak contact with a very dense reservoir. Landau-Zener theory does the same for a time dependent driven system in contact with a sparse reservoir. Using a simple model, we analyze the validity of these two theories by comparing their predictions with exact numerical results. We show that despite their a priori different range of validity, these two descriptions can give rise to an identical quantum master equation. Both theories can be used for a nonequilibrium thermodynamic description, which we show is consistent with exact thermodynamic identities evaluated in the full system-reservoir space. We emphasize the importance of properly accounting for the system-reservoir interaction energy and of operating in regimes where the reservoir can be considered as close to ideal. PMID- 29347651 TI - Nonlinear and subharmonic stability analysis in film-driven morphological patterns. AB - The interaction of a gravity-driven water film with an evolving solid substrate (calcite or ice) results in the formation of fascinating wavy patterns similar both in caves and in ice-falls. Due to their remarkable similarity, we adopt a unified approach in the study of pattern formation of longitudinally oriented organ-pipe-like structures, called flutings. Since the morphogenesis of cave patterns can evolve for millennia, they have an additional value as silent repositories of past climates. Fluting formation is studied with the aid of gradient expansion and center manifold projection. In particular, through gradient expansion, a Benney-type equation accounting for the movable boundary is obtained. The coupling with a wall evolution equation provides a morphodynamic model for fluting formation, explored through linear and nonlinear analyses. In this way, closed relationships for the selected wave number and for the finite amplitude are achieved. However, as finite-amplitude monochromatic waves may be destabilized by nonlinear interactions with other modes, we verify, through center manifold projection, the stability of the fundamental to subharmonic disturbances. Conclusively, we perform numerical simulations of the fully nonlinear equations to validate the theory results. PMID- 29347652 TI - Role of red cells and plasma composition on blood sessile droplet evaporation. AB - The morphology of dried blood droplets derives from the deposition of red cells, the main components of their solute phase. Up to now, evaporation-induced convective flows were supposed to be at the base of red cell distribution in blood samples. Here, we present a direct visualization by videomicroscopy of the internal dynamics in desiccating blood droplets, focusing on the role of cell concentration and plasma composition. We show that in diluted suspensions, the convection is promoted by the rich molecular composition of plasma, whereas it is replaced by an outward red blood cell displacement front at higher hematocrits. We also evaluate by ultrasounds the effect of red cell deposition on the temporal evolution of sample rigidity and adhesiveness. PMID- 29347653 TI - Stochastic thermodynamics of quantum maps with and without equilibrium. AB - We study stochastic thermodynamics for a quantum system of interest whose dynamics is described by a completely positive trace-preserving (CPTP) map as a result of its interaction with a thermal bath. We define CPTP maps with equilibrium as CPTP maps with an invariant state such that the entropy production due to the action of the map on the invariant state vanishes. Thermal maps are a subgroup of CPTP maps with equilibrium. In general, for CPTP maps, the thermodynamic quantities, such as the entropy production or work performed on the system, depend on the combined state of the system plus its environment. We show that these quantities can be written in terms of system properties for maps with equilibrium. The relations that we obtain are valid for arbitrary coupling strengths between the system and the thermal bath. The fluctuations of thermodynamic quantities are considered in the framework of a two-point measurement scheme. We derive the entropy production fluctuation theorem for general maps and a fluctuation relation for the stochastic work on a system that starts in the Gibbs state. Some simplifications for the probability distributions in the case of maps with equilibrium are presented. We illustrate our results by considering spin 1/2 systems under thermal maps, nonthermal maps with equilibrium, maps with nonequilibrium steady states, and concatenations of them. Finally, and as an important application, we consider a particular limit in which the concatenation of maps generates a continuous time evolution in Lindblad form for the system of interest, and we show that the concept of maps with and without equilibrium translates into Lindblad equations with and without quantum detailed balance, respectively. The consequences for the thermodynamic quantities in this limit are discussed. PMID- 29347654 TI - Time-dependent Tonks-Langmuir model is unstable. AB - We investigate a time-dependent extension of the Tonks-Langmuir model for a one dimensional plasma discharge with collisionless kinetic ions and Boltzmann electrons. Ions are created uniformly throughout the volume and flow from the center of the discharge to the boundary wall due to a self-consistent, zero-order electric field. Solving this model using a particle-in-cell simulation, we observe coherent low-frequency, long-wavelength unstable ion waves which move toward the boundary with a speed below both the ion acoustic speed and the average ion velocity. The maximum amplitude of the wave potential fluctuations peaks at ~0.09T_{e} near the wall, where T_{e} is the electron temperature in electron volts. Using linear kinetic theory, we identify this instability as slow ion-acoustic wave modes which are destabilized by the zero-order electric field. PMID- 29347655 TI - Emergence of chaos in a viscous solution of rods. AB - It is shown that the addition of small amounts of microscopic rods in a viscous fluid at low Reynolds number causes a significant increase of the flow resistance. Numerical simulations of the dynamics of the solution reveal that this phenomenon is associated to a transition from laminar to chaotic flow. Polymer stresses give rise to flow instabilities which, in turn, perturb the alignment of the rods. This coupled dynamics results in the activation of a wide range of scales, which enhances the mixing efficiency of viscous flows. PMID- 29347656 TI - Theory-based design of sintered granular composites triples three-phase boundary in fuel cells. AB - Solid-oxide fuel cells produce electric current from energy released by a spontaneous electrochemical reaction. The efficiency of these devices depends crucially on the microstructure of their electrodes and in particular on the three-phase boundary (TPB) length, along which the energy-producing reaction occurs. We present a systematic maximization of the TPB length as a function of four readily controllable microstructural parameters, for any given mean hydraulic radius, which is a conventional measure of the permeability to gas flow. We identify the maximizing parameters and show that the TPB length can be increased by a factor of over 300% compared to current common practices. We support this result by calculating the TPB of several numerically simulated structures. We also compare four models for a single intergranular contact in the sintered electrode and show that the model commonly used in the literature is oversimplified and unphysical. We then propose two alternatives. PMID- 29347657 TI - Mapping of the Bak, Tang, and Wiesenfeld sandpile model on a two-dimensional Ising-correlated percolation lattice to the two-dimensional self-avoiding random walk. AB - The self-organized criticality on the random fractal networks has many motivations, like the movement pattern of fluid in the porous media. In addition to the randomness, introducing correlation between the neighboring portions of the porous media has some nontrivial effects. In this paper, we consider the Ising-like interactions between the active sites as the simplest method to bring correlations in the porous media, and we investigate the statistics of the BTW model in it. These correlations are controlled by the artificial "temperature" T and the sign of the Ising coupling. Based on our numerical results, we propose that at the Ising critical temperature T_{c} the model is compatible with the universality class of two-dimensional (2D) self-avoiding walk (SAW). Especially the fractal dimension of the loops, which are defined as the external frontier of the avalanches, is very close to D_{f}^{SAW}=4/3. Also, the corresponding open curves has conformal invariance with the root-mean-square distance R_{rms}~t^{3/4} (t being the parametrization of the curve) in accordance with the 2D SAW. In the finite-size study, we observe that at T=T_{c} the model has some aspects compatible with the 2D BTW model (e.g., the 1/log(L)-dependence of the exponents of the distribution functions) and some in accordance with the Ising model (e.g., the 1/L-dependence of the fractal dimensions). The finite-size scaling theory is tested and shown to be fulfilled for all statistical observables in T=T_{c}. In the off-critical temperatures in the close vicinity of T_{c} the exponents show some additional power-law behaviors in terms of T-T_{c} with some exponents that are reported in the text. The spanning cluster probability at the critical temperature also scales with L^{1/2}, which is different from the regular 2D BTW model. PMID- 29347658 TI - Finding multiple core-periphery pairs in networks. AB - With a core-periphery structure of networks, core nodes are densely interconnected, peripheral nodes are connected to core nodes to different extents, and peripheral nodes are sparsely interconnected. Core-periphery structure composed of a single core and periphery has been identified for various networks. However, analogous to the observation that many empirical networks are composed of densely interconnected groups of nodes, i.e., communities, a network may be better regarded as a collection of multiple cores and peripheries. We propose a scalable algorithm to detect multiple nonoverlapping groups of core periphery structure in a network. We illustrate our algorithm using synthesized and empirical networks. For example, we find distinct core-periphery pairs with different political leanings in a network of political blogs and separation between international and domestic subnetworks of airports in some single countries in a worldwide airport network. PMID- 29347659 TI - Crystallization of finite-extensible nonlinear elastic Lennard-Jones coarse grained polymers. AB - The ability of a simple coarse-grained finite-extensible nonlinear elastic (FENE) Lennard-Jones (LJ) polymer model to be crystallized is investigated by molecular dynamics simulations. The optimal FENE Lennard-Jones parameter combinations (ratio between FENE and LJ equilibrium distances) and the optimal lattice parameters are calculated for five different perfect crystallite structures: simple tetragonal, body-centered tetragonal, body-centered orthorhombic, hexagonal primitive, and hexagonal close packed. It was found that the most energetically favorable structure is the body-centered orthorhombic. Starting with an equilibrated polymer liquid and with the optimal parameters found for the body-centered orthorhombic, an isothermal treatment led to the formation of large lamellar crystallites with a typical chain topology: folded, loop, and tie chains, and with a crystallinity of about 60%-70%, similar to real semicrystalline polymers. This simple coarse-grained Lennard-Jones model provides a qualitative tool to study semicrystalline microstructures for polymers. PMID- 29347660 TI - Universal Gaussian behavior of driven lattice gases at short times. AB - The dynamic and static critical behaviors of driven and equilibrium lattice gas models are studied in two spatial dimensions. We show that in the short-time regime immediately following a critical quench, the dynamics of the transverse anisotropic order parameter, its autocorrelation, and Binder cumulant are consistent with the prediction of a Gaussian, i.e., noninteracting, effective theory, both for the nonequilibrium lattice gases and, to some extent, their equilibrium counterpart. Such a superuniversal behavior is observed only at short times after a critical quench, while the various models display their distinct behaviors in the stationary states, described by the corresponding, known universality classes. PMID- 29347661 TI - Activity-driven changes in the mechanical properties of fire ant aggregations. AB - Fire ant aggregations are active materials composed of individual constituents that are able to transform internal energy into work. We find using rheology and direct visualization that the aggregation undergoes activity cycles that affect the mechanical properties of the system. When the activity is high, the aggregation approximately equally stores and dissipates energy, it is more homogeneous, and exerts a high outward force. When the activity is low, the aggregation is predominantly elastic, it is more heterogeneous, and it exerts a small outward force. We rationalize our results using a simple kinetic model where the number of active ants within the aggregation is the essential quantity. PMID- 29347662 TI - Deciphering the kinetic structure of multi-ion plasma shocks. AB - Strong collisional shocks in multi-ion plasmas are featured in many high-energy density environments, including inertial confinement fusion implosions. However, their basic structure and its dependence on key parameters (e.g., the Mach number and the plasma ion composition) are poorly understood, and inconsistencies in that regard remain in the literature. In particular, the shock width's dependence on the Mach number has been hotly debated for decades. Using a high-fidelity Vlasov-Fokker-Planck code, iFP, and direct comparisons to multi-ion hydrodynamic simulations and semianalytic predictions, we resolve the structure of steady state planar shocks in D-^{3}He plasmas. Additionally, we derive and confirm with kinetic simulations a quantitative description of the dependence of the shock width on the Mach number and initial ion concentration. PMID- 29347663 TI - Magnetization plateau as a result of the uniform and gradual electron doping in a coupled spin-electron double-tetrahedral chain. AB - The double-tetrahedral chain in a longitudinal magnetic field, whose nodal lattice sites occupied by the localized Ising spins regularly alternate with triangular plaquettes with the dynamics described by the Hubbard model, is rigorously investigated. It is demonstrated that the uniform change of electron concentration controlled by the chemical potential in a combination with the competition between model parameters and the external magnetic field leads to the formation of one chiral and seven nonchiral phases at the absolute zero temperature. Rational plateaux at one-third and one-half of the saturation magnetization can also be identified in the low-temperature magnetization curves. On the other hand, the gradual electron doping results in 11 different ground state regions that distinguish from each other by the evolution of the electron distribution during this process. Several doping-dependent magnetization plateaux are observed in the magnetization process as a result of the continuous change of electron content in the model. PMID- 29347664 TI - Morphodynamics of a growing microbial colony driven by cell death. AB - Bacterial cells can often self-organize into multicellular structures with complex spatiotemporal morphology. In this work, we study the spatiotemporal dynamics of a growing microbial colony in the presence of cell death. We present an individual-based model of nonmotile bacterial cells which grow and proliferate by consuming diffusing nutrients on a semisolid two-dimensional surface. The colony spreads by growth forces and sliding motility of cells and undergoes cell death followed by subsequent disintegration of the dead cells in the medium. We model cell death by considering two possible situations: In one of the cases, cell death occurs in response to the limitation of local nutrients, while the other case corresponds to an active death process, known as apoptotic or programmed cell death. We demonstrate how the colony morphology is influenced by the presence of cell death. Our results show that cell death facilitates transitions from roughly circular to highly branched structures at the periphery of an expanding colony. Interestingly, our results also reveal that for the colonies which are growing in higher initial nutrient concentrations, cell death occurs much earlier compared to the colonies which are growing in lower initial nutrient concentrations. This work provides new insights into the branched patterning of growing bacterial colonies as a consequence of complex interplay among the biochemical and mechanical effects. PMID- 29347665 TI - Universal features of cluster numbers in percolation. AB - The number of clusters per site n(p) in percolation at the critical point p=p_{c} is not itself a universal quantity; it depends upon the lattice and percolation type (site or bond). However, many of its properties, including finite-size corrections, scaling behavior with p, and amplitude ratios, show various degrees of universal behavior. Some of these are universal in the sense that the behavior depends upon the shape of the system, but not lattice type. Here, we elucidate the various levels of universality for elements of n(p) both theoretically and by carrying out extensive studies on several two- and three-dimensional systems, by high-order series analysis, Monte Carlo simulation, and exact enumeration. We find many results, including precise values for n(p_{c}) for several systems, a clear demonstration of the singularity in n^{''}(p), and metric scale factors. We make use of the matching polynomial of Sykes and Essam to find exact relations between properties for lattices and matching lattices. We propose a criterion for an absolute metric factor b based upon the singular behavior of the scaling function, rather than a relative definition of the metric that has previously been used. PMID- 29347666 TI - Publisher's Note: Metal nanospheres under intense continuous-wave illumination: A unique case of nonperturbative nonlinear nanophotonics [Phys. Rev. E 96, 012212 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.96.012212. PMID- 29347667 TI - Minimal model of directed cell motility on patterned substrates. AB - Crawling cell motility is vital to many biological processes such as wound healing and the immune response. Using a minimal model we investigate the effects of patterned substrate adhesiveness and biophysical cell parameters on the direction of cell motion. We show that cells with low adhesion site formation rates may move perpendicular to adhesive stripes while those with high adhesion site formation rates results in motility only parallel to the substrate stripes. We explore the effects of varying the substrate pattern geometry and the strength of actin polymerization on the directionality of the crawling cell. These results reveal that high strength of actin polymerization results in motion perpendicular to substrate stripes only when the substrate is relatively nonadhesive; in particular, this suggests potential applications in motile cell sorting and guiding on engineered substrates. PMID- 29347668 TI - Enabling the self-contained refrigerator to work beyond its limits by filtering the reservoirs. AB - In this paper, we study the quantum self-contained refrigerator [Linden et al., Phys. Rev. Lett. 105, 130401 (2010)PRLTAO0031-900710.1103/PhysRevLett.105.130401] in the strong internal coupling regime with engineered reservoirs. We find that if some modes of the three thermal reservoirs can be properly filtered out, the efficiency and the working domain of the refrigerator can be improved in contrast to the those in the weak internal coupling regime, which indicates one advantage of the strong internal coupling. In addition, we find that the background natural vacuum reservoir could cause the filtered refrigerator to stop working and the background natural thermal reservoir could greatly reduce the cooling efficiency. PMID- 29347669 TI - Reply to "Comment on 'Troublesome aspects of the Renyi-MaxEnt treatment' ". AB - This Reply is intended as a refutation of the preceding Comment [Oikonomou and Bagci, Phys. Rev. E 96, 056101 (2017)10.1103/PhysRevE.96.056101] on our paper [Plastino et al., Phys. Rev. E 94, 012145 (2016).1539 375510.1103/PhysRevE.94.012145]. We show that the Tsallis probability distribution of our paper does not coincide with the Tsallis distribution studied by Oikonomou and Bagci. Consequently, their findings do not apply to our paper. PMID- 29347670 TI - Comment on "Troublesome aspects of the Renyi-MaxEnt treatment". AB - Plastino et al. [Plastino et al., Phys. Rev. E 94, 012145 (2016)1539 375510.1103/PhysRevE.94.012145] recently stated that the Renyi entropy is not suitable for thermodynamics by using functional calculus, since it leads to anomalous results unlike the Tsallis entropy. We first show that the Tsallis entropy also leads to such anomalous behaviors if one adopts the same functional calculus approach. Second, we note that one of the Lagrange multipliers is set in an ad hoc manner in the functional calculus approach of Plastino et al. Finally, the explanation for these anomalous behaviors is provided by observing that the generalized distributions obtained by Plastino et al. do not yield the ordinary canonical partition function in the appropriate limit and therefore cannot be considered as genuine generalized distributions. PMID- 29347671 TI - Kinetic-contact-driven gigantic energy transfer in a two-dimensional Lennard Jones fluid confined to a rotating pore. AB - A two-dimensional Lennard-Jones system in a circular and rotating container has been studied by means of molecular dynamics technique. A nonequilibrium transition to the rotating stage has been detected in a delayed time since an instant switching of the frame rotation. This transition is attributed to the increase of the density at the wall because of the centrifugal force. At the same time the phase transition occurs, the inner system changes its configuration of the solid-state type into the liquid type. Impact of angular frequency and molecular roughness on the transport properties of the nonrotating and rotating systems is analyzed. PMID- 29347672 TI - Unified mean-field framework for susceptible-infected-susceptible epidemics on networks, based on graph partitioning and the isoperimetric inequality. AB - We propose an approximation framework that unifies and generalizes a number of existing mean-field approximation methods for the susceptible-infected susceptible (SIS) epidemic model on complex networks. We derive the framework, which we call the unified mean-field framework (UMFF), as a set of approximations of the exact Markovian SIS equations. Our main novelty is that we describe the mean-field approximations from the perspective of the isoperimetric problem, which results in bounds on the UMFF approximation error. These new bounds provide insight in the accuracy of existing mean-field methods, such as the N-intertwined mean-field approximation and heterogeneous mean-field method, which are contained by UMFF. Additionally, the isoperimetric inequality relates the UMFF approximation accuracy to the regularity notions of Szemeredi's regularity lemma. PMID- 29347673 TI - Response and correlation functions of nonlinear systems in equilibrium states. AB - In this paper, we study systematically a serial of correlation functions in some one-dimensional nonlinear lattices. Due to the energy conservation law, they are implicitly interdependent. Various transport coefficients are thus also connected. In the studies of the autocorrelations of local energy density and of local heat current, a general relation between diverging heat conduction and super heat diffusion has been proposed recently. We clarify that such a relation is valid only in systems without temperature pressure. In those with temperature pressure, a constant but nontrivial term appears. This term explains a previously observed fact that heat diffusion in such systems is always ballistic but heat conduction can diverge very slowly. Such a result not only disproves the existence of any general relation between diverging heat conduction and super heat diffusion, but it also breaks the long-term presumption that ballistic heat conduction and diffusion always coexist. PMID- 29347674 TI - Alternative derivation of exact law for compressible and isothermal magnetohydrodynamics turbulence. AB - The exact law for fully developed homogeneous compressible magnetohydrodynamics (CMHD) turbulence is derived. For an isothermal plasma, without the assumption of isotropy, the exact law is expressed as a function of the plasma velocity field, the compressible Alfven velocity, and the scalar density, instead of the Elsasser variables used in previous works. The theoretical results show four different types of terms that are involved in the nonlinear cascade of the total energy in the inertial range. Each category is examined in detail, in particular, those that can be written either as source or flux terms. Finally, the role of the background magnetic field B_{0} is highlighted and a comparison with the incompressible MHD (IMHD) model is discussed. This point is particularly important when testing this exact law on numerical simulations and in situ observations in space plasmas. PMID- 29347675 TI - Persistent Sinai-type diffusion in Gaussian random potentials with decaying spatial correlations. AB - Logarithmic or Sinai-type subdiffusion is usually associated with random force disorder and nonstationary potential fluctuations whose root-mean-squared amplitude grows with distance. We show here that extremely persistent, macroscopic logarithmic diffusion also universally emerges at sufficiently low temperatures in stationary Gaussian random potentials with spatially decaying correlations, known to exist in a broad range of physical systems. Combining results from extensive simulations with a scaling approach we elucidate the physical mechanism of this unusual subdiffusion. In particular, we explain why with growing temperature and/or time a first crossover occurs to standard, power law subdiffusion, with a time-dependent power-law exponent, and then a second crossover occurs to normal diffusion with a disorder-renormalized diffusion coefficient. Interestingly, the initial, nominally ultraslow diffusion turns out to be much faster than the universal de Gennes-Bassler-Zwanzig limit of the renormalized normal diffusion, which realistically cannot be attained at sufficiently low temperatures and/or for strong disorder. The ultraslow diffusion is also shown to be nonergodic and it displays a local bias phenomenon. Our simple scaling theory not only explains our numerical findings but qualitatively also has a predictive character. PMID- 29347676 TI - Twitching motility of bacteria with type-IV pili: Fractal walks, first passage time, and their consequences on microcolonies. AB - A human pathogen, Neisseria gonorrhoeae (NG), moves on surfaces by attaching and retracting polymeric structures called Type IV pili. The tug-of-war between the pili results in a two-dimensional stochastic motion called twitching motility. In this paper, with the help of real-time NG trajectories, we develop coarse-grained models for their description. The fractal properties of these trajectories are determined and their influence on first passage time and formation of bacterial microcolonies is studied. Our main observations are as follows: (i) NG performs a fast ballistic walk on small time scales and a slow diffusive walk over long time scales with a long crossover region; (ii) there exists a characteristic persistent length l_{p}^{*}, which yields the fastest growth of bacterial aggregates or biofilms. Our simulations reveal that l_{p}^{*}~L^{0.6}, where L*L is the surface on which the bacteria move; (iii) the morphologies have distinct fractal characteristics as a consequence of the ballistic and diffusive motion of the constituting bacteria. PMID- 29347677 TI - Sidewall-friction-driven ordering transition in granular channel flows: Implications for granular rheology. AB - We report a transition from a disordered state to an ordered state in the flow of nearly monodisperse granular matter flowing in an inclined channel with planar slide walls and a bumpy base, using discrete element method simulations. For low particle-sidewall friction coefficients, the flowing particles are disordered, however, for high sidewall friction, an ordered state is obtained, characterized by a layering of the particles and hexagonal packing of the particles in each layer. The extent of ordering, quantified by the local bond-orientational order parameter, varies in the cross section of the channel, with the highest ordering near the sidewalls. The flow transition significantly affects the local rheology the effective friction coefficient is lower, and the packing fraction is higher, in the ordered state compared to the disordered state. A simple model, incorporating the extent of local ordering, is shown to describe the rheology of the system. PMID- 29347678 TI - Detection of transition times from single-particle-tracking trajectories. AB - In heterogeneous environments, the diffusivity is not constant but changes with time. It is important to detect changes in the diffusivity from single-particle tracking trajectories in experiments. Here, we devise a novel method for detecting the transition times of the diffusivity from trajectory data. A key idea of this method is the introduction of a characteristic time scale of the diffusive states, which is obtained by a fluctuation analysis of the time averaged mean square displacements. We test our method in silico by using the Langevin equation with a fluctuating diffusivity. We show that our method can successfully detect the transition times of diffusive states and obtain the diffusion coefficient as a function of time. This method will provide a quantitative description of the fluctuating diffusivity in heterogeneous environments and can be applied to time series with transitions of states. PMID- 29347679 TI - Pathways to equilibrium orientation fluctuations in finite stripe-forming systems. AB - Small-angle orientation fluctuations in ordered stripe-forming systems free of topological defects can exhibit aging and anisotropic growth of two length scales. In infinitely extended systems, the stripe orientation field develops a dominant modulation length lambda_{?}^{*}(t) in the direction parallel to the stripes, which increases with time t as lambda_{?}^{*}(t)~t^{1/4}. Simultaneously, the orientation correlation length xi_{?}(t) in the direction perpendicular to the stripes increases as xi_{?}(t)~t^{1/2} [Riesch et al., Interface Focus 7, 20160146 (2017)2042-889810.1098/rsfs.2016.0146]. Here we show that finite systems of size L_{?}*L_{?} with periodic boundary conditions reach equilibrium when the dominant modulation length lambda_{?}^{*}(t) reaches the system size L_{?} in the stripe direction. The equilibration time tau_{eq}^{?} is solely determined by L_{?}, with tau_{eq}^{?}~L_{?}^{4}. In systems with L_{?}GUE, P->GOE, and GOE->GUE with the results from random matrix theory, we prove that these crossovers are described reasonably. Recent investigations by F. Schweiner et al. [Phys. Rev. E 95, 062205 (2017)2470 004510.1103/PhysRevE.95.062205] have shown that the Hamiltonian of magnetoexcitons in cubic semiconductors can exhibit all three statistics in dependence on the system parameters. Evaluating the numerical results for magnetoexcitons in dependence on the excitation energy and on a parameter connected with the cubic valence band structure and comparing the results with the formula proposed allows us to distinguish between regular and chaotic behavior as well as between existent or broken antiunitary symmetries. Increasing one of the two parameters, transitions between different crossovers, e.g., from the P->GOE to the P->GUE crossover, are observed and discussed. PMID- 29347684 TI - Scalable and fast heterogeneous molecular simulation with predictive parallelization schemes. AB - Multiscale and inhomogeneous molecular systems are challenging topics in the field of molecular simulation. In particular, modeling biological systems in the context of multiscale simulations and exploring material properties are driving a permanent development of new simulation methods and optimization algorithms. In computational terms, those methods require parallelization schemes that make a productive use of computational resources for each simulation and from its genesis. Here, we introduce the heterogeneous domain decomposition approach, which is a combination of an heterogeneity-sensitive spatial domain decomposition with an a priori rearrangement of subdomain walls. Within this approach, the theoretical modeling and scaling laws for the force computation time are proposed and studied as a function of the number of particles and the spatial resolution ratio. We also show the new approach capabilities, by comparing it to both static domain decomposition algorithms and dynamic load-balancing schemes. Specifically, two representative molecular systems have been simulated and compared to the heterogeneous domain decomposition proposed in this work. These two systems comprise an adaptive resolution simulation of a biomolecule solvated in water and a phase-separated binary Lennard-Jones fluid. PMID- 29347685 TI - Statistical independence of the initial conditions in chaotic mixing. AB - Experimental evidence of the scalar convergence towards a global strange eigenmode independent of the scalar initial condition in chaotic mixing is provided. This convergence, underpinning the independent nature of chaotic mixing in any passive scalar, is presented by scalar fields with different initial conditions casting statistically similar shapes when advected by periodic unsteady flows. As the scalar patterns converge towards a global strange eigenmode, the scalar filaments, locally aligned with the direction of maximum stretching, as described by the Lagrangian stretching theory, stack together in an inhomogeneous pattern at distances smaller than their asymptotic minimum widths. The scalar variance decay becomes then exponential and independent of the scalar diffusivity or initial condition. In this work, mixing is achieved by advecting the scalar using a set of laminar flows with unsteady periodic topology. These flows, that resemble the tendril-whorl map, are obtained by morphing the forcing geometry in an electromagnetic free surface 2D mixing experiment. This forcing generates a velocity field which periodically switches between two concentric hyperbolic and elliptic stagnation points. In agreement with previous literature, the velocity fields obtained produce a chaotic mixer with two regions: a central mixing and an external extensional area. These two regions are interconnected through two pairs of fluid conduits which transfer clean and dyed fluid from the extensional area towards the mixing region and a homogenized mixture from the mixing area towards the extensional region. PMID- 29347686 TI - Geometric phaselike effects in a quantum heat engine. AB - By periodically driving the temperature of reservoirs in a quantum heat engine, geometric or Pancharatnam-Berry phaselike (PBp) effects in the thermodynamics can be observed. The PBp can be identified from a generating function (GF) method within an adiabatic quantum Markovian master equation formalism. The GF is shown not to lead to a standard open quantum system's fluctuation theorem in the presence of phase-different modulations with an inapplicability in the use of large deviation theory. Effect of quantum coherences in optimizing the flux is nullified due to PBp contributions. The linear coefficient, 1/2, which is universal in the expansion of the efficiency at maximum power in terms of Carnot efficiency no longer holds true in the presence of PBp effects. PMID- 29347687 TI - Corrected simulations for one-dimensional diffusion processes with naturally occurring boundaries. AB - To simulate a diffusion process, a usual approach is to discretize the time in the associated stochastic differential equation. This is the approach used in the Euler method. In the present work we consider a one-dimensional diffusion process where the terms occurring, within the stochastic differential equation, prevent the process entering a region. The outcome is a naturally occurring boundary (which may be absorbing or reflecting). A complication occurs in a simulation of this situation. The term involving a random variable, within the discretized stochastic differential equation, may take a trajectory across the boundary into a "forbidden region." The naive way of dealing with this problem, which we refer to as the "standard" approach, is simply to reset the trajectory to the boundary, based on the argument that crossing the boundary actually signifies achieving the boundary. In this work we show, within the framework of the Euler method, that such resetting introduces a spurious force into the original diffusion process. This force may have a significant influence on trajectories that come close to a boundary. We propose a corrected numerical scheme, for simulating one-dimensional diffusion processes with naturally occurring boundaries. This involves correcting the standard approach, so that an exact property of the diffusion process is precisely respected. As a consequence, the proposed scheme does not introduce a spurious force into the dynamics. We present numerical test cases, based on exactly soluble one-dimensional problems with one or two boundaries, which suggest that, for a given value of the discrete time step, the proposed scheme leads to substantially more accurate results than the standard approach. Alternatively, the standard approach needs considerably more computation time to obtain a comparable level of accuracy to the proposed scheme, because the standard approach requires a significantly smaller time step. PMID- 29347688 TI - Infection dynamics on spatial small-world network models. AB - The study of complex networks, and in particular of social networks, has mostly concentrated on relational networks, abstracting the distance between nodes. Spatial networks are, however, extremely relevant in our daily lives, and a large body of research exists to show that the distances between nodes greatly influence the cost and probability of establishing and maintaining a link. A random geometric graph (RGG) is the main type of synthetic network model used to mimic the statistical properties and behavior of many social networks. We propose a model, called REDS, that extends energy-constrained RGGs to account for the synergic effect of sharing the cost of a link with our neighbors, as is observed in real relational networks. We apply both the standard Watts-Strogatz rewiring procedure and another method that conserves the degree distribution of the network. The second technique was developed to eliminate unwanted forms of spatial correlation between the degree of nodes that are affected by rewiring, limiting the effect on other properties such as clustering and assortativity. We analyze both the statistical properties of these two network types and their epidemiological behavior when used as a substrate for a standard susceptible infected-susceptible compartmental model. We consider and discuss the differences in properties and behavior between RGGs and REDS as rewiring increases and as infection parameters are changed. We report considerable differences both between the network types and, in the case of REDS, between the two rewiring schemes. We conclude that REDS represent, with the application of these rewiring mechanisms, extremely useful and interesting tools in the study of social and epidemiological phenomena in synthetic complex networks. PMID- 29347689 TI - Improved locality of the phase-field lattice-Boltzmann model for immiscible fluids at high density ratios. AB - Based on phase-field theory, we introduce a robust lattice-Boltzmann equation for modeling immiscible multiphase flows at large density and viscosity contrasts. Our approach is built by modifying the method proposed by Zu and He [Phys. Rev. E 87, 043301 (2013)PLEEE81539-375510.1103/PhysRevE.87.043301] in such a way as to improve efficiency and numerical stability. In particular, we employ a different interface-tracking equation based on the so-called conservative phase-field model, a simplified equilibrium distribution that decouples pressure and velocity calculations, and a local scheme based on the hydrodynamic distribution functions for calculation of the stress tensor. In addition to two distribution functions for interface tracking and recovery of hydrodynamic properties, the only nonlocal variable in the proposed model is the phase field. Moreover, within our framework there is no need to use biased or mixed difference stencils for numerical stability and accuracy at high density ratios. This not only simplifies the implementation and efficiency of the model, but also leads to a model that is better suited to parallel implementation on distributed-memory machines. Several benchmark cases are considered to assess the efficacy of the proposed model, including the layered Poiseuille flow in a rectangular channel, Rayleigh-Taylor instability, and the rise of a Taylor bubble in a duct. The numerical results are in good agreement with available numerical and experimental data. PMID- 29347690 TI - Inherent stress correlations in a quiescent two-dimensional liquid: Static analysis including finite-size effects. AB - After constructing a formalism to analyze spatial stress correlations in two dimensional equilibrated liquids, we show that the sole conjunction of mechanical balance and material isotropy demands all anisotropic components of the inherent state (IS) stress autocorrelation matrix to decay at long range as 1/r^{2} in the large system size limit. Furthermore, analyzing numerical simulation data for an equilibrated supercooled liquid, we bring evidence that, in finite-sized periodic systems, the autocorrelations of pressure and shear stresses present uniform backgrounds of amplitudes proportional to the inverse cell area. These backgrounds bring relevant contributions to macroscopic IS stress fluctuations, with the consequence that the latter scale as inverse area, yet in an anomalous way, inconsistent with viewing an IS as equivalent, in the thermodynamic limit, to an ensemble of independent finite-sized subsystems. In that sense, ISs are not spatially ergodic. PMID- 29347691 TI - Dynamics of functional failures and recovery in complex road networks. AB - We propose a new framework for modeling the evolution of functional failures and recoveries in complex networks, with traffic congestion on road networks as the case study. Differently from conventional approaches, we transform the evolution of functional states into an equivalent dynamic structural process: dual-vertex splitting and coalescing embedded within the original network structure. The proposed model successfully explains traffic congestion and recovery patterns at the city scale based on high-resolution data from two megacities. Numerical analysis shows that certain network structural attributes can amplify or suppress cascading functional failures. Our approach represents a new general framework to model functional failures and recoveries in flow-based networks and allows understanding of the interplay between structure and function for flow-induced failure propagation and recovery. PMID- 29347692 TI - Effect of the correlation between internal noise and external noise on logical stochastic resonance in bistable systems. AB - Some noisy nonlinear systems could be exploited to operate reliable logic operation in an optimal window of noise intensity, which is termed as logical stochastic resonance (LSR). We investigated the LSR phenomenon in bistable systems when internal noise and external noise are correlated. The LSR effect is evaluated by the success probability of the obtained desired output with various combinations of logic inputs. It is shown that the or-nor, and-nand, and Latch operations still can operate reliably with the correlated internal noise and external noise. A positive correlation strength tends to enhance or-nor logic and suppress and-nand logic. The negative correlation strength tends to suppress or nor logic and enhance and-nand logic. The results provide possible corroboration for implementing reliable LSR when internal noise and external noise are correlated. PMID- 29347693 TI - Flow instabilities due to the interfacial formation of surfactant-fatty acid material in a Hele-Shaw cell. AB - We present an experimental study of pattern formation during the penetration of an aqueous surfactant solution into a liquid fatty acid in a Hele-Shaw cell. When a solution of the cationic surfactant cetylpyridinium chloride is injected into oleic acid, a wide variety of fingering patterns are observed as a function of surfactant concentration and flow rate, which are strikingly different than the classic Saffman-Taylor (ST) instability. We observe evidence of interfacial material forming between the two liquids, causing these instabilities. Moreover, the number of fingers decreases with increasing flow rate Q, while the average finger width increases with Q, both trends opposite to the ST case. Bulk rheology on related mixtures indicates a gel-like state. Comparison of experiments using other oils indicates the importance of pH and the carboxylic head group in the formation of the surfactant-fatty acid material. PMID- 29347694 TI - Constraint percolation on hyperbolic lattices. AB - Hyperbolic lattices interpolate between finite-dimensional lattices and Bethe lattices, and they are interesting in their own right, with ordinary percolation exhibiting not one but two phase transitions. We study four constraint percolation models-k-core percolation (for k=1,2,3) and force-balance percolation on several tessellations of the hyperbolic plane. By comparing these four different models, our numerical data suggest that all of the k-core models, even for k=3, exhibit behavior similar to ordinary percolation, while the force balance percolation transition is discontinuous. We also provide proof, for some hyperbolic lattices, of the existence of a critical probability that is less than unity for the force-balance model, so that we can place our interpretation of the numerical data for this model on a more rigorous footing. Finally, we discuss improved numerical methods for determining the two critical probabilities on the hyperbolic lattice for the k-core percolation models. PMID- 29347695 TI - Optimal dephasing for ballistic energy transfer in disordered linear chains. AB - We study the interplay between dephasing, disorder, and coupling to a sink on transport efficiency in a one-dimensional chain of finite length N, and in particular the beneficial or detrimental effect of dephasing on transport. The excitation moves along the chain by coherent nearest-neighbor hopping Omega, under the action of static disorder W and dephasing gamma. The last site is coupled to an external acceptor system (sink), where the excitation can be trapped with a rate Gamma_{trap}. While it is known that dephasing can help transport in the localized regime, here we show that dephasing can enhance energy transfer even in the ballistic regime. Specifically, in the localized regime we recover previous results, where the optimal dephasing is independent of the chain length and proportional to W or W^{2}/Omega. In the ballistic regime, the optimal dephasing decreases as 1/N or 1/sqrt[N], respectively, for weak and moderate static disorder. When focusing on the excitation starting at the beginning of the chain, dephasing can help excitation transfer only above a critical value of disorder W^{cr}, which strongly depends on the sink coupling strength Gamma_{trap}. Analytic solutions are obtained for short chains. PMID- 29347697 TI - Multichannel scattering problem with a nonseparable angular part as a boundary value problem. AB - We have developed an efficient computational method for solving the quantum multichannel scattering problem with a nonseparable angular part. The use of the nondirect product discrete-variable representation, suggested and developed by V. Melezhik, gives us an accurate approximation for the angular part of the desired wave function and, eventually, for the scattering parameters. Subsequent reduction of the problem to the boundary-value problem with well-defined block band matrix of equation coefficients permits us to use efficient standard algorithms for its solution. We demonstrate the numerical efficiency, flexibility, and good convergence of the computational scheme in a quantitative description of the Feshbach resonances in pair collisions occurring in atomic traps and the scattering in strongly anisotropic traps. The method can also be used for the investigation of further actual problems in quantum physics. A natural extension is a description of spin-orbit coupling, intensively investigated in ultracold gases, and dipolar confinement-induced resonances. PMID- 29347696 TI - Stochastic dynamics of genetic broadcasting networks. AB - The complex genetic programs of eukaryotic cells are often regulated by key transcription factors occupying or clearing out of a large number of genomic locations. Orchestrating the residence times of these factors is therefore important for the well organized functioning of a large network. The classic models of genetic switches sidestep this timing issue by assuming the binding of transcription factors to be governed entirely by thermodynamic protein-DNA affinities. Here we show that relying on passive thermodynamics and random release times can lead to a "time-scale crisis" for master genes that broadcast their signals to a large number of binding sites. We demonstrate that this time scale crisis for clearance in a large broadcasting network can be resolved by actively regulating residence times through molecular stripping. We illustrate these ideas by studying a model of the stochastic dynamics of the genetic network of the central eukaryotic master regulator NFkappaB which broadcasts its signals to many downstream genes that regulate immune response, apoptosis, etc. PMID- 29347698 TI - Field dynamics inference via spectral density estimation. AB - Stochastic differential equations are of utmost importance in various scientific and industrial areas. They are the natural description of dynamical processes whose precise equations of motion are either not known or too expensive to solve, e.g., when modeling Brownian motion. In some cases, the equations governing the dynamics of a physical system on macroscopic scales occur to be unknown since they typically cannot be deduced from general principles. In this work, we describe how the underlying laws of a stochastic process can be approximated by the spectral density of the corresponding process. Furthermore, we show how the density can be inferred from possibly very noisy and incomplete measurements of the dynamical field. Generally, inverse problems like these can be tackled with the help of Information Field Theory. For now, we restrict to linear and autonomous processes. To demonstrate its applicability, we employ our reconstruction algorithm on a time-series and spatiotemporal processes. PMID- 29347699 TI - Dynamic scaling in the two-dimensional Ising spin glass with normal-distributed couplings. AB - We carry out simulated annealing and employ a generalized Kibble-Zurek scaling hypothesis to study the two-dimensional Ising spin glass with normal-distributed couplings. The system has an equilibrium glass transition at temperature T=0. From a scaling analysis when T->0 at different annealing velocities v, we find power-law scaling in the system size for the velocity required in order to relax toward the ground state, v~L^{-(z+1/nu)}, the Kibble-Zurek ansatz where z is the dynamic critical exponent and nu the previously known correlation-length exponent, nu~3.6. We find z~13.6 for both the Edwards-Anderson spin-glass order parameter and the excess energy. This is different from a previous study of the system with bimodal couplings [Rubin et al., Phys. Rev. E 95, 052133 (2017)2470 004510.1103/PhysRevE.95.052133] where the dynamics is faster (z is smaller) and the above two quantities relax with different dynamic exponents (with that of the energy being larger). We argue that the different behaviors arise as a consequence of the different low-energy landscapes: for normal-distributed couplings the ground state is unique (up to a spin reflection), while the system with bimodal couplings is massively degenerate. Our results reinforce the conclusion of anomalous entropy-driven relaxation behavior in the bimodal Ising glass. In the case of a continuous coupling distribution, our results presented here also indicate that, although Kibble-Zurek scaling holds, the perturbative behavior normally applying in the slow limit breaks down, likely due to quasidegenerate states, and the scaling function takes a different form. PMID- 29347700 TI - Numerical design of a T-shaped microfluidic device for deformability-based separation of elastic capsules and soft beads. AB - We propose a square cross-section microfluidic channel with an orthogonal side branch (asymmetric T-shaped bifurcation) for the separation of elastic capsules and soft beads suspended in a Newtonian liquid on the basis of their mechanical properties. The design is performed through three-dimensional direct numerical simulations. When suspended objects start near the inflow channel centerline and the carrier fluid is equally partitioned between the two outflow branches, particle separation can be achieved based on their deformability, with the stiffer ones going "straight" and the softer ones being deviated to the "side" branch. The effects of the geometrical and physical parameters of the system on the phenomenon are investigated. Since cell deformability can be significantly modified by pathology, we give a proof of concept on the possibility of separating diseased cells from healthy ones, thus leading to illness diagnosis. PMID- 29347701 TI - Speed-of-light pulses in the massless nonlinear Dirac equation with a potential. AB - We consider the massless nonlinear Dirac (NLD) equation in 1+1 dimension with scalar-scalar self-interaction g^{2}/2(Psi[over -]Psi)^{2} in the presence of three external electromagnetic real potentials V(x), a potential barrier, a constant potential, and a potential well. By solving numerically the NLD equation, we find different scenarios depending on initial conditions, namely, propagation of the initial pulse along one direction, splitting of the initial pulse into two pulses traveling in opposite directions, and focusing of two initial pulses followed by a splitting. For all considered cases, the final waves travel with the speed of light and are solutions of the massless linear Dirac equation. During these processes the charge and the energy are conserved, whereas the momentum is conserved when the solutions possess specific symmetries. For the case of the constant potential, we derive exact analytical solutions of the massless NLD equation that are also solutions of the massless linearized Dirac equation. Decay or growth of the initial pulse is also predicted from the evolution of the charge for the case of a non-zero imaginary part of the potential. PMID- 29347702 TI - Orbitals for classical arbitrary anisotropic colloidal potentials. AB - Coarse-grained potentials are ubiquitous in mesoscale simulations. While various methods to compute effective interactions for spherically symmetric particles exist, anisotropic interactions are seldom used, due to their complexity. Here we describe a general formulation, based on a spatial decomposition of the density fields around the particles, akin to atomic orbitals. We show that anisotropic potentials can be efficiently computed in numerical simulations using Fourier based methods. We validate the field formulation and characterize its computational efficiency with a system of colloids that have Gaussian surface charge distributions. We also investigate the phase behavior of charged Janus colloids immersed in screened media, with screening lengths comparable to the colloid size. The system shows rich behaviors, exhibiting vapor, liquid, gel, and crystalline morphologies, depending on temperature and screening length. The crystalline phase only appears for symmetric Janus particles. For very short screening lengths, the system undergoes a direct transition from a vapor to a crystal on cooling; while, for longer screening lengths, a vapor-liquid-crystal transition is observed. The proposed formulation can be extended to model force fields that are time or orientation dependent, such as those in systems of polymer-grafted particles and magnetic colloids. PMID- 29347703 TI - Detecting the chaotic nature in a transitional boundary layer using symbolic information-theory quantifiers. AB - The permutation entropy and the statistical complexity are employed to study the boundary-layer transition induced by the surface roughness. The velocity signals measured in the transition process are analyzed with these symbolic quantifiers, as well as the complexity-entropy causality plane, and the chaotic nature of the instability fluctuations is identified. The frequency of the dominant fluctuations has been found according to the time scales corresponding to the extreme values of the symbolic quantifiers. The laminar-turbulent transition process is accompanied by the evolution in the degree of organization of the complex eddy motions, which is also characterized with the growing smaller and flatter circles in the complexity-entropy causality plane. With the help of the permutation entropy and the statistical complexity, the differences between the chaotic fluctuations detected in the experiments and the classical Tollmien Schlichting wave are shown and discussed. It is also found that the chaotic features of the instability fluctuations can be approximated with a number of regular sine waves superimposed on the fluctuations of the undisturbed laminar boundary layer. This result is related to the physical mechanism in the generation of the instability fluctuations, which is the noise-induced chaos. PMID- 29347704 TI - Recurrence due to periodic multisoliton fission in the defocusing nonlinear Schrodinger equation. AB - We address the degree of universality of the Fermi-Pasta-Ulam recurrence induced by multisoliton fission from a harmonic excitation by analyzing the case of the semiclassical defocusing nonlinear Schrodinger equation, which models nonlinear wave propagation in a variety of physical settings. Using a suitable Wentzel Kramers-Brillouin approach to the solution of the associated scattering problem we accurately predict, in a fully analytical way, the number and the features (amplitude and velocity) of solitonlike excitations emerging post-breaking, as a function of the dispersion smallness parameter. This also permits us to predict and analyze the near-recurrences, thereby inferring the universal character of the mechanism originally discovered for the Korteweg-deVries equation. We show, however, that important differences exist between the two models, arising from the different scaling rules obeyed by the soliton velocities. PMID- 29347705 TI - Exploring cluster Monte Carlo updates with Boltzmann machines. AB - Boltzmann machines are physics informed generative models with broad applications in machine learning. They model the probability distribution of an input data set with latent variables and generate new samples accordingly. Applying the Boltzmann machines back to physics, they are ideal recommender systems to accelerate the Monte Carlo simulation of physical systems due to their flexibility and effectiveness. More intriguingly, we show that the generative sampling of the Boltzmann machines can even give different cluster Monte Carlo algorithms. The latent representation of the Boltzmann machines can be designed to mediate complex interactions and identify clusters of the physical system. We demonstrate these findings with concrete examples of the classical Ising model with and without four-spin plaquette interactions. In the future, automatic searches in the algorithm space parametrized by Boltzmann machines may discover more innovative Monte Carlo updates. PMID- 29347706 TI - Oscillation collapse in coupled quantum van der Pol oscillators. AB - The classical self-oscillations can collapse merely due to their mutual couplings. We investigate this oscillation collapse in quantum van der Pol oscillators. For a pair of quantum oscillators, the steady-state mean phonon number is shown to be lower than in the corresponding classical model with a Gaussian white noise that mimics quantum noise. We further show within the mean field theory that a number of globally coupled oscillators undergo a transition from the synchronized periodic motion to the collective oscillation collapse. A quantum many-body simulation suggests that the increase in the number of oscillators leads to a lower steady-state mean phonon number, bounded below by the mean-field result. PMID- 29347707 TI - Current quantization and fractal hierarchy in a driven repulsive lattice gas. AB - Driven lattice gases are widely regarded as the paradigm of collective phenomena out of equilibrium. While such models are usually studied with nearest-neighbor interactions, many empirical driven systems are dominated by slowly decaying interactions such as dipole-dipole and Van der Waals forces. Motivated by this gap, we study the nonequilibrium stationary state of a driven lattice gas with slow-decayed repulsive interactions at zero temperature. By numerical and analytical calculations of the particle current as a function of the density and of the driving field, we identify (i) an abrupt breakdown transition between insulating and conducting states, (ii) current quantization into discrete phases where a finite current flows with infinite differential resistivity, and (iii) a fractal hierarchy of excitations, related to the Farey sequences of number theory. We argue that the origin of these effects is the competition between scales, which also causes the counterintuitive phenomenon that crystalline states can melt by increasing the density. PMID- 29347708 TI - Inverse Bremsstrahlung current drive. AB - The generation of the plasma current resulting from Bremsstrahlung absorption is considered. It is shown that the electric current is higher than the naive estimates assuming that electrons absorb only the photon momentum and using the Spitzer conductivity would suggest. The current enhancement is in part because electrons get the recoil momentum from the Coulomb field of ions during the absorption and in part because the electromagnetic power is absorbed asymmetrically within the electron velocity distribution space. PMID- 29347709 TI - Interaction of a planar reacting shock wave with an isotropic turbulent vorticity field. AB - Linear interaction analysis (LIA) is employed to investigate the interaction of reactive and nonreactive shock waves with isotropic vortical turbulence. The analysis is carried out, through Laplace-transform technique, accounting for long time effects of vortical disturbances on the burnt-gas flow in the fast-reaction limit, where the reaction-region thickness is significantly small in comparison with the most representative turbulent length scales. Results provided by the opposite slow-reaction limit are also recollected. The reactive case is here restricted to situations where the overdriven detonation front does not exhibit self-induced oscillations nor inherent instabilities. The interaction of the planar detonation with a monochromatic pattern of perturbations is addressed first, and then a Fourier superposition for three-dimensional isotropic turbulent fields is employed to provide integral formulas for the amplification of the kinetic energy, enstrophy, and anisotropy downstream. Transitory evolution is also provided for single-frequency disturbances. In addition, further effects associated to the reaction rate, which have not been included in LIA, are studied through direct numerical simulations. The numerical computations, based on WENO BO4-type scheme, provide spatial profiles of the turbulent structures downstream for four different conditions that include nonreacting shock waves, unstable reacting shock (sufficiently high activation energy), and stable reacting shocks for different detonation thicknesses. Effects of the propagation Mach number, chemical heat release, and burn rate are analyzed. PMID- 29347710 TI - Entropic nonadditivity, H theorem, and nonlinear Klein-Kramers equations. AB - We use the H theorem to establish the entropy and the entropic additivity law for a system composed of subsystems, with the dynamics governed by the Klein-Kramers equations, by considering relations among the dynamics of these subsystems and their entropies. We start considering the subsystems governed by linear Klein Kramers equations and verify that the Boltzmann-Gibbs entropy is appropriated to this dynamics, leading us to the standard entropic additivity, S_{BG}^{(1?2)}=S_{BG}^{1}+S_{BG}^{2}, consistent with the fact that the distributions of the subsystem are independent. We then extend the dynamics of these subsystems to independent nonlinear Klein-Kramers equations. For this case, the results show that the H theorem is verified for a generalized entropy, which does not preserve the standard entropic additivity for independent distributions. In this scenario, consistent results are obtained when a suitable coupling among the nonlinear Klein-Kramers equations is considered, in which each subsystem modifies the other until an equilibrium state is reached. This dynamics, for the subsystems, results in the Tsallis entropy for the system and, consequently, verifies the relation S_{q}^{(1?2)}=S_{q}^{1}+S_{q}^{2}+(1 q)S_{q}^{1}S_{q}^{2}/k, which is a nonadditive entropic relation. PMID- 29347711 TI - Shock-wave-like structures induced by an exothermic neutralization reaction in miscible fluids. AB - We report shock-wave-like structures that are strikingly different from previously observed fingering instabilities, which occur in a two-layer system of miscible fluids reacting by a second-order reaction A+B->S in a vertical Hele Shaw cell. While the traditional analysis expects the occurrence of a diffusion controlled convection, we show both experimentally and theoretically that the exothermic neutralization reaction can also trigger a wave with a perfectly planar front and nearly discontinuous change in density across the front. This wave propagates fast compared with the characteristic diffusion times and separates the motionless fluid and the area with anomalously intense convective mixing. We explain its mechanism and introduce a new dimensionless parameter, which allows to predict the appearance of such a pattern in other systems. Moreover, we show that our governing equations, taken in the inviscid limit, are formally analogous to well-known shallow-water equations and adiabatic gas flow equations. Based on this analogy, we define the critical velocity for the onset of the shock wave which is found to be in the perfect agreement with the experiments. PMID- 29347712 TI - From quenched disorder to continuous time random walk. AB - This work focuses on quantitative representation of transport in systems with quenched disorder. Explicit mapping of the quenched trap model to continuous time random walk is presented. Linear temporal transformation, t->t/Lambda^{1/alpha}, for a transient process in the subdiffusive regime is sufficient for asymptotic mapping. An exact form of the constant Lambda^{1/alpha} is established. A disorder averaged position probability density function for a quenched trap model is obtained, and analytic expressions for the diffusion coefficient and drift are provided. PMID- 29347713 TI - Discrete Boltzmann modeling of Rayleigh-Taylor instability in two-component compressible flows. AB - A discrete Boltzmann model (DBM) is proposed to probe the Rayleigh-Taylor instability (RTI) in two-component compressible flows. Each species has a flexible specific-heat ratio and is described by one discrete Boltzmann equation (DBE). Independent discrete velocities are adopted for the two DBEs. The collision and force terms in the DBE account for the molecular collision and external force, respectively. Two types of force terms are exploited. In addition to recovering the modified Navier-Stokes equations in the hydrodynamic limit, the DBM has the capability of capturing detailed nonequilibrium effects. Furthermore, we use the DBM to investigate the dynamic process of the RTI. The invariants of tensors for nonequilibrium effects are presented and studied. For low Reynolds numbers, both global nonequilibrium manifestations and the growth rate of the entropy of mixing show three stages (i.e., the reducing, increasing, and then decreasing trends) in the evolution of the RTI. On the other hand, the early reducing tendency is suppressed and even eliminated for high Reynolds numbers. Relevant physical mechanisms are analyzed and discussed. PMID- 29347714 TI - Fluctuating hydrodynamics, current fluctuations, and hyperuniformity in boundary driven open quantum chains. AB - We consider a class of either fermionic or bosonic noninteracting open quantum chains driven by dissipative interactions at the boundaries and study the interplay of coherent transport and dissipative processes, such as bulk dephasing and diffusion. Starting from the microscopic formulation, we show that the dynamics on large scales can be described in terms of fluctuating hydrodynamics. This is an important simplification as it allows us to apply the methods of macroscopic fluctuation theory to compute the large deviation (LD) statistics of time-integrated currents. In particular, this permits us to show that fermionic open chains display a third-order dynamical phase transition in LD functions. We show that this transition is manifested in a singular change in the structure of trajectories: while typical trajectories are diffusive, rare trajectories associated with atypical currents are ballistic and hyperuniform in their spatial structure. We confirm these results by numerically simulating ensembles of rare trajectories via the cloning method, and by exact numerical diagonalization of the microscopic quantum generator. PMID- 29347715 TI - Cusps enable line attractors for neural computation. AB - Line attractors in neuronal networks have been suggested to be the basis of many brain functions, such as working memory, oculomotor control, head movement, locomotion, and sensory processing. In this paper, we make the connection between line attractors and pulse gating in feed-forward neuronal networks. In this context, because of their neutral stability along a one-dimensional manifold, line attractors are associated with a time-translational invariance that allows graded information to be propagated from one neuronal population to the next. To understand how pulse-gating manifests itself in a high-dimensional, nonlinear, feedforward integrate-and-fire network, we use a Fokker-Planck approach to analyze system dynamics. We make a connection between pulse-gated propagation in the Fokker-Planck and population-averaged mean-field (firing rate) models, and then identify an approximate line attractor in state space as the essential structure underlying graded information propagation. An analysis of the line attractor shows that it consists of three fixed points: a central saddle with an unstable manifold along the line and stable manifolds orthogonal to the line, which is surrounded on either side by stable fixed points. Along the manifold defined by the fixed points, slow dynamics give rise to a ghost. We show that this line attractor arises at a cusp catastrophe, where a fold bifurcation develops as a function of synaptic noise; and that the ghost dynamics near the fold of the cusp underly the robustness of the line attractor. Understanding the dynamical aspects of this cusp catastrophe allows us to show how line attractors can persist in biologically realistic neuronal networks and how the interplay of pulse gating, synaptic coupling, and neuronal stochasticity can be used to enable attracting one-dimensional manifolds and, thus, dynamically control the processing of graded information. PMID- 29347716 TI - Inferring low-dimensional microstructure representations using convolutional neural networks. AB - We apply recent advances in machine learning and computer vision to a central problem in materials informatics: the statistical representation of microstructural images. We use activations in a pretrained convolutional neural network to provide a high-dimensional characterization of a set of synthetic microstructural images. Next, we use manifold learning to obtain a low dimensional embedding of this statistical characterization. We show that the low dimensional embedding extracts the parameters used to generate the images. According to a variety of metrics, the convolutional neural network method yields dramatically better embeddings than the analogous method derived from two-point correlations alone. PMID- 29347717 TI - Crossover between liquidlike and gaslike behavior in CH_{4} at 400 K. AB - We report experimental evidence for a crossover between a liquidlike state and a gaslike state in fluid methane (CH_{4}). This crossover is observed in all of our experiments, up to a temperature of 397 K, 2.1 times the critical temperature of methane. The crossover has been characterized with both Raman spectroscopy and x ray diffraction in a number of separate experiments, and confirmed to be reversible. We associate this crossover with the Frenkel line-a recently hypothesized crossover in dynamic properties of fluids extending to arbitrarily high pressure and temperature, dividing the phase diagram into separate regions where the fluid possesses liquidlike and gaslike properties. On the liquidlike side the Raman-active vibration increases in frequency linearly as pressure is increased, as expected due to the repulsive interaction between adjacent molecules. On the gaslike side this competes with the attractive van der Waals potential leading the vibration frequency to decrease as pressure is increased. PMID- 29347718 TI - Three-body interactions improve contact prediction within direct-coupling analysis. AB - The prediction of residue contacts in a protein solely from sequence information is a promising approach to computational structure prediction. Recent developments use statistical or information theoretic methods to extract contact information from a multiple sequence alignment. Despite good results, accuracy is limited due to usage of two-body interactions within a Potts model. In this paper we generalize this approach and propose a Hamiltonian with an additional three body interaction term. We derive a mean-field approximation for inference of three-body couplings within a Potts model which is fast enough on modern computers. Finally, we show that our model has a higher accuracy in predicting residue contacts in comparison with the plain two-body-interaction model. PMID- 29347719 TI - Effect of polymer network on thermodynamic stability and switching behavior of the smectic-C_{alpha}^{*} phase. AB - A polymer-stabilized liquid crystal based on 4^{'}-(octyloxy)biphenyl-4 carboxylate 2-fluoro-4-((octyl-2-yloxy)carbonyl)phenyl (D16) and 1,6 hexanediol diacrylate as a monomer was prepared by in situ photopolymerization. The selected antiferroelectric liquid crystal contains a fast-switching smectic C_{alpha}^{*} phase (SmC_{alpha}^{*}), and the influence of the polymer network on the thermodynamic stability of this phase and its switching behavior under applying time-dependent electric field were studied. Using dielectric spectroscopy and polarizing microscopy, the liquid crystal materials were characterized, and subsequently with the use of the reversal current method (RCM) the current response, especially from the SmC_{alpha}^{*} phase was carefully analyzed. The current response is complex and also depends on the neighboring liquid crystal phases. In the liquid crystal-polymer system, as well as in the liquid crystal monomer mixture, a significant shift of the temperature range of the SmC_{alpha}^{*} phase toward lower temperatures was observed; however, the thermodynamic instability related to the transformation to the crystalline phase was also noted and characterized. Because of the fuzzy phase transitions detected in the liquid crystal-polymer system by dielectric spectroscopy and also because of the lack of the characteristic dielectric signature of SmC_{alpha}^{*} after polymerization, we proposed the use of the RCM, as a complementary one, to identify the SmC_{alpha}^{*} phase even in such complex materials. PMID- 29347720 TI - Extreme events in the forced Lienard system. AB - We observe extremely large amplitude intermittent spikings in a dynamical variable of a periodically forced Lienard-type oscillator and characterize them as extreme events, which are rare, but recurrent and larger in amplitude than a threshold. The extreme events occur via two processes, an interior crisis and intermittency. The probability of occurrence of the events shows a long-tail distribution in both the cases. We provide evidence of the extreme events in an experiment using an electronic analog circuit of the Lienard oscillator that shows good agreement with our numerical results. PMID- 29347721 TI - Direct verification of the fluctuation-dissipation relation in viscously coupled oscillators. AB - The fluctuation-dissipation relation, a central result in nonequilibrium statistical physics, relates equilibrium fluctuations in a system to its linear response to external forces. Here we provide a direct experimental verification of this relation for viscously coupled oscillators, as realized by a pair of optically trapped colloidal particles. A theoretical analysis, in which interactions mediated by slow viscous flow are represented by nonlocal friction tensors, matches experimental results and reveals a frequency maximum in the amplitude of the mutual response which is a sensitive function of the trap stiffnesses and the friction tensors. This allows for its location and width to be tuned and suggests the utility of the trap setup for accurate two-point microrheology. PMID- 29347722 TI - Stochastic thermodynamics of periodically driven systems: Fluctuation theorem for currents and unification of two classes. AB - Periodic driving is used to operate machines that go from standard macroscopic engines to small nonequilibrium microsized systems. Two classes of such systems are small heat engines driven by periodic temperature variations, and molecular pumps driven by external stimuli. Well-known results that are valid for nonequilibrium steady states of systems driven by fixed thermodynamic forces, instead of an external periodic driving, have been generalized to periodically driven heat engines only recently. These results include a general expression for entropy production in terms of currents and affinities, and symmetry relations for the Onsager coefficients from linear-response theory. For nonequilibrium steady states, the Onsager reciprocity relations can be obtained from the more general fluctuation theorem for the currents. We prove a fluctuation theorem for the currents for periodically driven systems. We show that this fluctuation theorem implies a fluctuation dissipation relation, symmetry relations for Onsager coefficients, and further relations for nonlinear response coefficients. The setup in this paper is more general than previous studies, i.e., our results are valid for both heat engines and molecular pumps. The external protocol is assumed to be stochastic in our framework, which leads to a particularly convenient way to treat periodically driven systems. PMID- 29347723 TI - Hierarchical benchmark graphs for testing community detection algorithms. AB - Hierarchical organization is an important, prevalent characteristic of complex systems; to understand their organization, the study of the underlying (generally complex) networks that describe the interactions between their constituents plays a central role. Numerous previous works have shown that many real-world networks in social, biologic, and technical systems present hierarchical organization, often in the form of a hierarchy of community structures. Many artificial benchmark graphs have been proposed to test different community detection methods, but no benchmark has been developed to thoroughly test the detection of hierarchical community structures. In this study, we fill this vacancy by extending the Lancichinetti-Fortunato-Radicchi (LFR) ensemble of benchmark graphs, adopting the rule of constructing hierarchical networks proposed by Ravasz and Barabasi. We employ this benchmark to test three of the most popular community detection algorithms and quantify their accuracy using the traditional mutual information and the recently introduced hierarchical mutual information. The results indicate that the Ravasz-Barabasi-Lancichinetti-Fortunato-Radicchi (RB-LFR) benchmark generates a complex hierarchical structure constituting a challenging benchmark for the considered community detection methods. PMID- 29347724 TI - Dielectric properties of liquid crystalline dimer mixtures exhibiting the nematic and twist-bend nematic phases. AB - A detailed investigation of the thermal and dielectric properties of a series of binary mixtures exhibiting the nematic (N) and twist-bend nematic (N_{TB}) liquid crystal phases is presented. The mixtures consist of an achiral, dimeric liquid crystal CB7CB, which forms the nematic and twist-bend nematic phases, and a calamitic liquid crystal 5CB, which shows the nematic phase. As the concentration of the calamitic liquid crystal is increased, the transition temperatures decrease linearly, and the width of the nematic phase increases. The enthalpies of phase transitions obtained from DSC measurements show that on increasing the concentration of 5CB in the binary mixtures, the enthalpy associated with the N N_{TB} phase transitions reduces considerably compared to a clear first-order N N_{TB} transition in pure CB7CB. The real and imaginary parts of the dielectric permittivity are measured as a function of frequency from 100 Hz to 2 MHz in the nematic and twist-bend nematic phases in planar and homeotropic devices. A significant decrease in the average dielectric permittivity as a function of temperature for mixtures forming the N_{TB} phase is observed. Measurements of the imaginary part of the dielectric permittivity show a relaxation peak in the measured frequency window for all of the mixtures exhibiting the N_{TB} phase. The activation energy associated with this relaxation process is calculated and is shown to remain constant irrespective of the composition of the mixtures. PMID- 29347725 TI - Partition function zeros of the p-state clock model in the complex temperature plane. AB - We investigate the partition function zeros of the two-dimensional p-state clock model in the complex temperature plane by using the Wang-Landau method. For p=5, 6, 8, and 10, we propose a modified energy representation to enumerate exact irregular energy levels for the density of states without any binning artifacts. Comparing the leading zeros between different p's, we provide strong evidence that the upper transition at p=6 is indeed of the Berezinskii-Kosterlitz-Thouless (BKT) type in contrast to the claim of the previous Fisher zero study [Phys. Rev. E 80, 042103 (2009)10.1103/PhysRevE.80.042103]. We find that the leading zeros of p=6 at the upper transition collapse onto the zero trajectories of the larger p's including the XY limit while the finite-size behavior of p=5 differs from the converged behavior of p>=6 within the system sizes examined. In addition, we argue that the nondivergent specific heat in the BKT transition is responsible for the small partition function magnitude that decreases exponentially with increasing system size near the leading zero, fundamentally limiting access to large systems in search for zeros with an estimator under finite statistical fluctuations. PMID- 29347726 TI - Deceleration of one-dimensional mixing by discontinuous mappings. AB - We present a computational study of a simple one-dimensional map with dynamics composed of stretching, permutations of equally sized cells, and diffusion. We observe that the combination of the aforementioned dynamics results in eigenmodes with long-time exponential decay rates. The decay rate of the eigenmodes is shown to be dependent on the choice of permutation and changes nonmonotonically with the diffusion coefficient for many of the permutations. The global mixing rate of the map M in the limit of vanishing diffusivity approximates well the decay rates of the eigenmodes for small diffusivity, however this global mixing rate does not bound the rates for all values of the diffusion coefficient. This counterintuitively predicts a deceleration in the asymptotic mixing rate with an increasing diffusivity rate. The implications of the results on finite time mixing are discussed. PMID- 29347727 TI - Nonlinear dynamics of a buoyancy-induced turbulent fire. AB - We conduct a numerical study on the dynamic behavior of a buoyancy-induced turbulent fire from the viewpoints of symbolic dynamics, complex networks, and statistical complexity. Here, we consider two classes of entropies: the permutation entropy and network entropy in epsilon-recurrence networks, both of which evaluate the degree of randomness in the underlying dynamics. These entropies enable us to capture the significant changes in the dynamic behavior of flow velocity fluctuations. The possible presence of two important dynamics, low dimensional deterministic chaos in the near field dominated by the motion of large-scale vortices and high-dimensional chaos in the far field forming a well developed turbulent plume, is clearly identified by the multiscale complexity entropy causality plane. PMID- 29347728 TI - Extracting the equation of state of lattice gases from random sequential adsorption simulations by means of the Gibbs adsorption isotherm. AB - An alternative approach for deriving the equation of state for a two-dimensional lattice gas is proposed, based on arguments similar to those used in the derivation of the Langmuir-Szyszkowski equation of state for localized adsorption. The relationship between surface coverage and excluded area is first extracted from random sequential adsorption simulations incorporating surface diffusion (RSAD). The adsorption isotherm is then obtained using kinetic arguments, and the Gibbs equation gives the relation between surface pressure and coverage. Provided surface diffusion is fast enough to ensure internal equilibrium within the monolayer during the RSAD simulations, the resulting equations of state are very close to the most accurate equivalents obtained by cumbersome thermodynamic methods. An internal test of the accuracy of the method is obtained by noting that adsorption RSAD simulations starting from an empty lattice and desorption simulations starting from a full lattice provide convergent upper and lower bounds on the surface pressure. PMID- 29347729 TI - Single-cone finite-difference schemes for the (2+1)-dimensional Dirac equation in general electromagnetic textures. AB - A single-cone finite-difference lattice scheme is developed for the (2+1) dimensional Dirac equation in presence of general electromagnetic textures. The latter is represented on a (2+1)-dimensional staggered grid using a second-order accurate finite difference scheme. A Peierls-Schwinger substitution to the wave function is used to introduce the electromagnetic (vector) potential into the Dirac equation. Thereby, the single-cone energy dispersion and gauge invariance are carried over from the continuum to the lattice formulation. Conservation laws and stability properties of the formal scheme are identified by comparison with the scheme for zero vector potential. The placement of magnetization terms is inferred from consistency with the one for the vector potential. Based on this formal scheme, several numerical schemes are proposed and tested. Elementary examples for single-fermion transport in the presence of in-plane magnetization are given, using material parameters typical for topological insulator surfaces. PMID- 29347730 TI - Rigidity-induced scale invariance in polymer ejection from capsid. AB - While the dynamics of a fully flexible polymer ejecting a capsid through a nanopore has been extensively studied, the ejection dynamics of semiflexible polymers has not been properly characterized. Here we report results from simulations of ejection dynamics of semiflexible polymers ejecting from spherical capsids. Ejections start from strongly confined polymer conformations of constant initial monomer density. We find that, unlike for fully flexible polymers, for semiflexible polymers the force measured at the pore does not show a direct relation to the instantaneous ejection velocity. The cumulative waiting time t(s), that is, the time at which a monomer s exits the capsid the last time, shows a clear change when increasing the polymer rigidity kappa. The major part of an ejecting polymer is driven out of the capsid by internal pressure. At the final stage the polymer escapes the capsid by diffusion. For the driven part there is a crossover from essentially exponential growth of t with s of the fully flexible polymers to a scale-invariant form. In addition, a clear dependence of t on polymer length N_{0} was found. These findings combined give the dependence t(s)?N_{0}^{0.55}s^{1.33} for the strongly rigid polymers. This crossover in dynamics where kappa acts as a control parameter is reminiscent of a phase transition. This analogy is further enhanced by our finding a perfect data collapse of t for polymers of different N_{0} and any constant kappa. PMID- 29347731 TI - Delay-induced wave instabilities in single-species reaction-diffusion systems. AB - The Turing (wave) instability is only possible in reaction-diffusion systems with more than one (two) components. Motivated by the fact that a time delay increases the dimension of a system, we investigate the presence of diffusion-driven instabilities in single-species reaction-diffusion systems with delay. The stability of arbitrary one-component systems with a single discrete delay, with distributed delay, or with a variable delay is systematically analyzed. We show that a wave instability can appear from an equilibrium of single-species reaction diffusion systems with fluctuating or distributed delay, which is not possible in similar systems with constant discrete delay or without delay. More precisely, we show by basic analytic arguments and by numerical simulations that fast asymmetric delay fluctuations or asymmetrically distributed delays can lead to wave instabilities in these systems. Examples, for the resulting traveling waves are shown for a Fisher-KPP equation with distributed delay in the reaction term. In addition, we have studied diffusion-induced instabilities from homogeneous periodic orbits in the same systems with variable delay, where the homogeneous periodic orbits are attracting resonant periodic solutions of the system without diffusion, i.e., periodic orbits of the Hutchinson equation with time-varying delay. If diffusion is introduced, standing waves can emerge whose temporal period is equal to the period of the variable delay. PMID- 29347732 TI - Population equations for degree-heterogenous neural networks. AB - We develop a statistical framework for studying recurrent networks with broad distributions of the number of synaptic links per neuron. We treat each group of neurons with equal input degree as one population and derive a system of equations determining the population-averaged firing rates. The derivation rests on an assumption of a large number of neurons and, additionally, an assumption of a large number of synapses per neuron. For the case of binary neurons, analytical solutions can be constructed, which correspond to steps in the activity versus degree space. We apply this theory to networks with degree-correlated topology and show that complex, multi-stable regimes can result for increasing correlations. Our work is motivated by the recent finding of subnetworks of highly active neurons and the fact that these neurons tend to be connected to each other with higher probability. PMID- 29347733 TI - Lattice Boltzmann model capable of mesoscopic vorticity computation. AB - It is well known that standard lattice Boltzmann (LB) models allow the strain rate components to be computed mesoscopically (i.e., through the local particle distributions) and as such possess a second-order accuracy in strain rate. This is one of the appealing features of the lattice Boltzmann method (LBM) which is of only second-order accuracy in hydrodynamic velocity itself. However, no known LB model can provide the same quality for vorticity and pressure gradients. In this paper, we design a multiple-relaxation time LB model on a three-dimensional 27-discrete-velocity (D3Q27) lattice. A detailed Chapman-Enskog analysis is presented to illustrate all the necessary constraints in reproducing the isothermal Navier-Stokes equations. The remaining degrees of freedom are carefully analyzed to derive a model that accommodates mesoscopic computation of all the velocity and pressure gradients from the nonequilibrium moments. This way of vorticity calculation naturally ensures a second-order accuracy, which is also proven through an asymptotic analysis. We thus show, with enough degrees of freedom and appropriate modifications, the mesoscopic vorticity computation can be achieved in LBM. The resulting model is then validated in simulations of a three-dimensional decaying Taylor-Green flow, a lid-driven cavity flow, and a uniform flow passing a fixed sphere. Furthermore, it is shown that the mesoscopic vorticity computation can be realized even with single relaxation parameter. PMID- 29347734 TI - Electrically induced structure transition in nematic liquid crystal droplets with conical boundary conditions. AB - Polymer-dispersed liquid crystal composites have been a focus of study for a long time for their unique electro-optical properties and manufacturing by "bottom-up" techniques at large scales. In this paper, nematic liquid crystal oblate droplets with conical boundary conditions (CBCs) under the action of electric field were studied by computer simulations and polarized optical microscopy. Droplets with CBCs were shown to prefer an axial-bipolar structure, which combines a pair of boojums and circular disclinations on a surface. In contrast to droplets with degenerate planar boundary conditions (PBCs), hybridization of the two structure types in droplets with CBCs leads to a two-minima energy profile, resulting in an abrupt structure transition and bistable behavior of the system. The nature of the low-energy barrier in droplets with CBCs makes it highly sensitive to external stimuli, such as electric or magnetic fields, temperature, and light. In particular, the value of the electric field of the structure reorientation in droplets with CBCs was found to be a few times smaller than the one for droplets with PBCs, and the droplet state remained stable after switching off the voltage. PMID- 29347735 TI - Spreading of nonmotile bacteria on a hard agar plate: Comparison between agent based and stochastic simulations. AB - We study spreading of a nonmotile bacteria colony on a hard agar plate by using agent-based and continuum models. We show that the spreading dynamics depends on the initial nutrient concentration, the motility, and the inherent demographic noise. Population fluctuations are inherent in an agent-based model, whereas for the continuum model we model them by using a stochastic Langevin equation. We show that the intrinsic population fluctuations coupled with nonlinear diffusivity lead to a transition from a diffusion limited aggregation type of morphology to an Eden-like morphology on decreasing the initial nutrient concentration. PMID- 29347736 TI - Locality of interactions for planar memristive circuits. AB - The dynamics of purely memristive circuits has been shown to depend on a projection operator which expresses the Kirchhoff constraints, is naturally non local in nature, and does represent the interaction between memristors. In the present paper we show that for the case of planar circuits, for which a meaningful Hamming distance can be defined, the elements of such projector can be bounded by exponentially decreasing functions of the distance. We provide a geometrical interpretation of the projector elements in terms of determinants of Dirichlet Laplacian of the dual circuit. For the case of linearized dynamics of the circuit for which a solution is known, this can be shown to provide a light cone bound for the interaction between memristors. This result establishes a finite speed of propagation of signals across the network, despite the non-local nature of the system. PMID- 29347737 TI - Influence of topographically patterned angled guidelines on directed self assembly of block copolymers. AB - Single chain in mean-field Monte Carlo simulations were employed to study the self-assembly of block copolymers (BCP) in thin films that use trapezoidal guidelines to direct the orientation and alignment of lamellar patterns. The present study explored the influence of sidewall interactions and geometry of the trapezoidal guidelines on the self-assembly of perpendicularly oriented lamellar morphologies. When both the sidewall and the top surface exhibit preferential interactions to the same block of the BCP, trapezoidal guidelines with intermediate taper angles were found to result in less defective perpendicularly orientated morphologies. Similarly, when the sidewall and top surface are preferential to distinct blocks of the BCP, intermediate tapering angles were found to be optimal in promoting defect free structures. Such results are rationalized based on the energetics arising in the formation of perpendicularly oriented lamella on patterned substrates. PMID- 29347738 TI - Finite-range Coulomb gas models of banded random matrices and quantum kicked rotors. AB - Dyson demonstrated an equivalence between infinite-range Coulomb gas models and classical random matrix ensembles for the study of eigenvalue statistics. We introduce finite-range Coulomb gas (FRCG) models via a Brownian matrix process, and study them analytically and by Monte Carlo simulations. These models yield new universality classes, and provide a theoretical framework for the study of banded random matrices (BRMs) and quantum kicked rotors (QKRs). We demonstrate that, for a BRM of bandwidth b and a QKR of chaos parameter alpha, the appropriate FRCG model has the effective range d=b^{2}/N=alpha^{2}/N, for large N matrix dimensionality. As d increases, there is a transition from Poisson to classical random matrix statistics. PMID- 29347739 TI - Fluid-driven fracture propagation in heterogeneous media: Probability distributions of fracture trajectories. AB - Hydraulic fracture trajectories in rocks and other materials are highly affected by spatial heterogeneity in their mechanical properties. Understanding the complexity and structure of fluid-driven fractures and their deviation from the predictions of homogenized theories is a practical problem in engineering and geoscience. We conduct a Monte Carlo simulation study to characterize the influence of heterogeneous mechanical properties on the trajectories of hydraulic fractures propagating in elastic media. We generate a large number of random fields of mechanical properties and simulate pressure-driven fracture propagation using a phase-field model. We model the mechanical response of the material as that of an elastic isotropic material with heterogeneous Young modulus and Griffith energy release rate, assuming that fractures propagate in the toughness dominated regime. Our study shows that the variance and the spatial covariance of the mechanical properties are controlling factors in the tortuousness of the fracture paths. We characterize the deviation of fracture paths from the homogenous case statistically, and conclude that the maximum deviation grows linearly with the distance from the injection point. Additionally, fracture path deviations seem to be normally distributed, suggesting that fracture propagation in the toughness-dominated regime may be described as a random walk. PMID- 29347740 TI - Evolving power grids with self-organized intermittent strain releases: An analogy with sandpile models and earthquakes. AB - The stability of powergrid is crucial since its disruption affects systems ranging from street lightings to hospital life-support systems. While short-term dynamics of single-event cascading failures have been extensively studied, less is understood on the long-term evolution and self-organization of powergrids. In this paper, we introduce a simple model of evolving powergrid and establish its connection with the sandpile model and earthquakes, i.e., self-organized systems with intermittent strain releases. Various aspects during its self-organization are examined, including blackout magnitudes, their interevent waiting time, the predictability of large blackouts, as well as the spatiotemporal rescaling of blackout data. We examined the self-organized strain releases on simulated networks as well as the IEEE 118-bus system, and we show that both simulated and empirical blackout waiting times can be rescaled in space and time similarly to those observed between earthquakes. Finally, we suggested proactive maintenance strategies to drive the powergrids away from self-organization to suppress large blackouts. PMID- 29347741 TI - Perturbation theory for water with an associating reference fluid. AB - The theoretical description of the thermodynamics of water is challenged by the structural transition towards tetrahedral symmetry at ambient conditions. As perturbation theories typically assume a spherically symmetric reference fluid, they are incapable of accurately describing the liquid properties of water at ambient conditions. In this paper we address this problem by introducing the concept of an associated reference perturbation theory (APT). In APT we treat the reference fluid as an associating hard sphere fluid which transitions to tetrahedral symmetry in the fully hydrogen bonded limit. We calculate this transition in a theoretically self-consistent manner without appealing to molecular simulations. This associated reference provides the reference fluid for a second order Barker-Henderson perturbative treatment of the long-range attractions. We demonstrate that this approach gives a significantly improved description of water as compared to standard perturbation theories. PMID- 29347742 TI - Exact solution of the hidden Markov processes. AB - We write a master equation for the distributions related to hidden Markov processes (HMPs) and solve it using a functional equation. Thus the solution of HMPs is mapped exactly to the solution of the functional equation. For a general case the latter can be solved only numerically. We derive an exact expression for the entropy of HMPs. Our expression for the entropy is an alternative to the ones given before by the solution of integral equations. The exact solution is possible because actually the model can be considered as a generalized random walk on a one-dimensional strip. While we give the solution for the two second order matrices, our solution can be easily generalized for the L values of the Markov process and M values of observables: We should be able to solve a system of L functional equations in the space of dimension M-1. PMID- 29347743 TI - Flat bands and compactons in mechanical lattices. AB - Local configurational symmetry in lattice structures may give rise to stationary, compact solutions, even in the absence of disorder and nonlinearity. These compact solutions are related to the existence of flat dispersion curves (bands). Nonlinearity can destabilize such compactons. One common flat-band-generating system is the one-dimensional cross-stitch model, in which compactons were shown to exist for the photonic lattice with Kerr nonlinearity. The compactons exist there already in the linear regime and are not generally destructed by that nonlinearity. Smooth nonlinearity of this kind does not permit performing complete stability analysis for this chain. We consider a discrete mechanical system with flat dispersion bands, in which the nonlinearity exists due to impact constraints. In this case, one can use the concept of the saltation matrix for the analytic construction of the monodromy matrix. Besides, we consider a smooth nonlinear lattice with linearly connected massless boxes, each containing two symmetric anharmonic oscillators. In this model, the flat bands and discrete compactons also readily emerge. This system also permits performing comprehensive stability analysis, at least in the anticontinuum limit, due to the reduced number of degrees of freedom. In both systems, there exist two types of localization. The first one is the complete localization, and the second one is the more common exponential localization. The latter type is associated with discrete breathers (DBs). Two principal mechanisms for the loss of stability are revealed. The first one is the possible internal instability of the symmetric and/or antisymmetric solution in the individual unit cell of the chain. One can interpret this instability pattern as internal resonance between the compacton and the DB. The other mechanism is global instability related to resonance of the stationary solution with the propagation frequencies. Different instability mechanisms lead to different bifurcations at the stability threshold. PMID- 29347744 TI - Quantum fluctuations of entropy production for fermionic systems in the Landauer Buttiker state. AB - The quantum fluctuations of the entropy production for fermionic systems in the Landauer-Buttiker nonequilibrium steady state are investigated. The probability distribution, governing these fluctuations, is explicitly derived by means of quantum field theory methods and analyzed in the zero frequency limit. It turns out that microscopic processes with positive, vanishing and negative entropy production occur in the system with nonvanishing probability. In spite of this fact, we show that all odd moments (in particular, the mean value of the entropy production) of the above distribution are non-negative. This result extends the second principle of thermodynamics to the quantum fluctuations of the entropy production in the Landauer-Buttiker state. The effect of the time reversal is also discussed. PMID- 29347746 TI - Topological defects in two-dimensional orientation-field models for grain growth. AB - Standard two-dimensional orientation-field-based phase-field models rely on a continuous scalar field to represent crystallographic orientation. The corresponding order parameter space is the unit circle, which is not simply connected. This topological property has important consequences for the resulting multigrain structures: (i) trijunctions may be singular; (ii) for each pair of grains there exist two different grain boundary solutions that cannot continuously transform to one another; (iii) if both solutions appear along a grain boundary, a topologically stable, singular point defect must exist between them. While (i) can be interpreted in the classical picture of grain boundaries, (ii) and therefore (iii) cannot. In addition, singularities cause difficulties, such as lattice pinning in numerical simulations. To overcome these problems, we propose two formulations of the model. The first is based on a three-component unit vector field, while in the second we utilize a two-component vector field with an additional potential. In both cases, the additional degree of freedom introduced makes the order parameter space simply connected, which removes the topological stability of these defects. PMID- 29347745 TI - Multiplexing topologies and time scales: The gains and losses of synchrony. AB - Inspired by the recent interest in collective dynamics of biological neural networks immersed in the glial cell medium, we investigate the frequency and phase order, i.e., Kuramoto type of synchronization in a multiplex two-layer network of phase oscillators of different time scales and topologies. One of them has a long-range connectivity, exemplified by the Erdos-Renyi random network, and supports both kinds of synchrony. The other is a locally coupled two-dimensional lattice that can reach frequency synchronization but lacks phase order. Drastically different layer frequencies disentangle intra- and interlayer synchronization. We find that an indirect but sufficiently strong coupling through the regular layer can induce both phase order in the originally nonsynchronized random layer and global order, even when an isolated regular layer does not manifest it in principle. At the same time, the route to global synchronization is complex: an initial onset of (partial) synchrony in the regular layer, when its intra- and interlayer coupling is increased, provokes the loss of synchrony even in the originally synchronized random layer. Ultimately, a developed asynchronous dynamics in both layers is abruptly taken over by the global synchrony of both kinds. PMID- 29347747 TI - Dynamical transition on the periodic Lorentz gas: Stochastic and deterministic approaches. AB - The effect of dynamical properties of the periodic Lorentz gas on the autocorrelation function and diffusion coefficient are investigated in various geometric transitions between billiards without horizon and infinite horizon. Numerical simulations are performed using a double square lattice which permits us to isolate different types of corridors and to describe the individual effects of each corridor. The results are compared with a stochastic model based on a escape-rate formalism which reveals the sensibility of the diffusion coefficient and clarifies the role of the open corridors mechanism on the dynamical transitions. PMID- 29347748 TI - Asymmetric couplings enhance the transition from chimera state to synchronization. AB - Chimera state has been well studied recently, but little attention has been paid to its transition to synchronization. We study this topic here by considering two groups of adaptively coupled Kuramoto oscillators. By searching the final states of different initial conditions, we find that the system can easily show a chimera state with robustness to initial conditions, in contrast to the sensitive dependence of chimera state on initial conditions in previous studies. Further, we show that, in the case of symmetric couplings, the behaviors of the two groups are always complementary to each other, i.e., robustness of chimera state, except a small basin of synchronization. Interestingly, we reveal that the basin of synchronization will be significantly increased when either the coupling of inner groups or that of intergroups are asymmetric. This transition from the attractor of chimera state to the attractor of synchronization is closely related to both the phase delay and the asymmetric degree of coupling strengths, resulting in a diversity of attractor's patterns. A theory based on the Ott-Antonsen ansatz is given to explain the numerical simulations. This finding may be meaningful for the control of competition between two attractors in biological systems, such as the cardiac rhythm and ventricular fibrillation, etc. PMID- 29347749 TI - Confined sandpile in two dimensions: Percolation and singular diffusion. AB - We investigate the properties of a two-state sandpile model subjected to a confining potential in two dimensions. From the microdynamical description, we derive a diffusion equation, and find a stationary solution for the case of a parabolic confining potential. By studying the systems at different confining conditions, we observe two scale-invariant regimes. At a given confining potential strength, the cluster size distribution takes the form of a power law. This regime corresponds to the situation in which the density at the center of the system approaches the critical percolation threshold. The analysis of the fractal dimension of the largest cluster frontier provides evidence that this regime is reminiscent of gradient percolation. By increasing further the confining potential, most of the particles coalesce in a giant cluster, and we observe a regime where the jump size distribution takes the form of a power law. The onset of this second regime is signaled by a maximum in the fluctuation of energy. PMID- 29347750 TI - Benchmarking of three-dimensional multicomponent lattice Boltzmann equation. AB - We present a challenging validation of phase field multicomponent lattice Boltzmann equation (MCLBE) simulation against the Re=0 Stokes flow regime Taylor Einstein theory of dilute suspension viscosity. By applying a number of recent advances in the understanding and the elimination of the interfacial microcurrent artefact, extending to a three-dimensional class of stability-enhancing multiple relaxation time collision models (which require no explicit collision matrix, note) and developing new interfacial interpolation schemes, we are able to obtain data that show that MCLBE may be applied in new flow regimes. Our data represent one of the most stringent tests yet attempted on LBE-one which received wisdom would preclude on grounds of overwhelming artefact flow. PMID- 29347751 TI - Surface deformation during an action potential in pearled cells. AB - Electric pulses in biological cells (action potentials) have been reported to be accompanied by a propagating cell-surface deformation with a nanoscale amplitude. Typically, this cell surface is covered by external layers of polymer material (extracellular matrix, cell wall material, etc.). It was recently demonstrated in excitable plant cells (Chara braunii) that the rigid external layer (cell wall) hinders the underlying deformation. When the cell membrane was separated from the cell wall by osmosis, a mechanical deformation, in the micrometer range, was observed upon excitation of the cell. The underlying mechanism of this mechanical pulse has, to date, remained elusive. Herein we report that Chara cells can undergo a pearling instability, and when the pearled fragments were excited even larger and more regular cell shape changes were observed (~10-100MUm in amplitude). These transient cellular deformations were captured by a curvature model that is based on three parameters: surface tension, bending rigidity, and pressure difference across the surface. In this paper these parameters are extracted by curve-fitting to the experimental cellular shapes at rest and during excitation. This is a necessary step to identify the mechanical parameters that change during an action potential. PMID- 29347752 TI - Noise-driven current reversal and stabilization in the tilted ratchet potential subject to tempered stable Levy noise. AB - We consider motion of a particle in a one-dimensional tilted ratchet potential subject to two-sided tempered stable Levy noise characterized by strength Omega, fractional index alpha, skew theta, and tempering lambda. We derive analytic solutions to the corresponding Fokker-Planck Levy equations for the probability density. Due to the periodicity of the potential, we carry out reduction to a compact domain and solve for the analog of steady-state solutions which we represent as wrapped probability density functions. By solving for the expected value of the current associated with the particle motion, we are able to determine thresholds for metastability of the system, namely when the particle stabilizes in a well of the potential and when the particle is in motion, for example as a consequence of the tilt of the potential. Because the noise may be asymmetric, we examine the relationship between skew of the noise and the tilt of the potential. With tempering, we find two remarkable regimes where the current may be reversed in a direction opposite to the tilt or where the particle may be stabilized in a well in circumstances where deterministically it should flow with the tilt. PMID- 29347753 TI - Consistent forcing scheme in the cascaded lattice Boltzmann method. AB - In this paper, we give an alternative derivation for the cascaded lattice Boltzmann method (CLBM) within a general multiple-relaxation-time (MRT) framework by introducing a shift matrix. When the shift matrix is a unit matrix, the CLBM degrades into an MRT LBM. Based on this, a consistent forcing scheme is developed for the CLBM. The consistency of the nonslip rule, the second-order convergence rate in space, and the property of isotropy for the consistent forcing scheme is demonstrated through numerical simulations of several canonical problems. Several existing forcing schemes previously used in the CLBM are also examined. The study clarifies the relation between MRT LBM and CLBM under a general framework. PMID- 29347754 TI - Theory of corticothalamic brain activity in a spherical geometry: Spectra, coherence, and correlation. AB - Corticothalamic neural field theory is applied to a spherical geometry to better model neural activity in the human brain and is also compared with planar approximations. The frequency power spectrum, correlation, and coherence functions are computed analytically and numerically. The effects of cortical boundary conditions and resulting modal aspects of spherical corticothalamic dynamics are explored, showing that the results of spherical and finite planar geometries converge to those for the infinite planar geometry in the limit of large brain size. Estimates are made of the point at which modal series can be truncated and it is found that for physiologically plausible parameters only the lowest few spatial eigenmodes are needed for an accurate representation of macroscopic brain activity. A difference between the geometries is that there is a low-frequency 1/f spectrum in the infinite planar geometry, whereas in the spherical geometry it is 1/f^{2}. Another difference is that the alpha peak in the spherical geometry is sharper and stronger than in the planar geometry. Cortical modal effects can lead to a double alpha peak structure in the power spectrum, although the main determinant of the alpha peak is corticothalamic feedback. In the spherical geometry, the cross spectrum between two points is found to only depend on their relative distance apart. At small spatial separations the low-frequency cross spectrum is stronger than for an infinite planar geometry and the alpha peak is sharper and stronger due to the partitioning of the energy into discrete modes. In the spherical geometry, the coherence function between points decays monotonically as their separation increases at a fixed frequency, but persists further at resonant frequencies. The correlation between two points is found to be positive, regardless of the time lag and spatial separation, but decays monotonically as the separation increases at fixed time lag. At fixed distance the correlation has peaks at multiples of the period of the dominant frequency of system activity. PMID- 29347755 TI - Transition to synchrony in degree-frequency correlated Sakaguchi-Kuramoto model. AB - We investigate transition to synchrony in degree-frequency correlated Sakaguchi Kuramoto (SK) model on complex networks both analytically and numerically. We analytically derive self-consistent equations for group angular velocity and order parameter for the model in the thermodynamic limit. Using the self consistent equations we investigate transition to synchronization in SK model on uncorrelated scale-free (SF) and Erdos-Renyi (ER) networks in detail. Depending on the degree distribution exponent (gamma) of SF networks and phase-frustration parameter, the population undergoes from first-order transition [explosive synchronization (ES)] to second-order transition and vice versa. In ER networks transition is always second order irrespective of the values of the phase-lag parameter. We observe that the critical coupling strength for the onset of synchronization is decreased by phase-frustration parameter in case of SF network where as in ER network, the phase-frustration delays the onset of synchronization. Extensive numerical simulations using SF and ER networks are performed to validate the analytical results. An analytical expression of critical coupling strength for the onset of synchronization is also derived from the self-consistent equations considering the vanishing order parameter limit. PMID- 29347756 TI - Improved understanding of the acoustophoretic focusing of dense suspensions in a microchannel. AB - We provide improved understanding of acoustophoretic focusing of a dense suspension (volume fraction phi>10%) in a microchannel subjected to an acoustic standing wave using a proposed theoretical model and experiments. The model is based on the theory of interacting continua and utilizes a momentum transport equation for the mixture, continuity equation, and transport equation for the solid phase. The model demonstrates the interplay between acoustic radiation and shear-induced diffusion (SID) forces that is critical in the focusing of dense suspensions. The shear-induced particle migration model of Leighton and Acrivos, coupled with the acoustic radiation force, is employed to simulate the continuum behavior of particles. In the literature, various closures for the diffusion coefficient D_{phi}^{*} are available for rigid spheres at high concentrations and nonspherical deformable particles [e.g., red blood cells (RBCs)] at low concentrations. Here we propose a closure for D_{phi}^{*} for dense suspension of RBCs and validate the proposed model with experimental data. While the available closures for D_{phi}^{*} fail to predict the acoustic focusing of a dense suspension of nonspherical deformable particles like RBCs, the predictions of the proposed model match experimental data within 15%. Both the model and experiments reveal a competition between acoustic radiation and SID forces that gives rise to an equilibrium width w^{*} of a focused stream of particles at some distance L_{eq}^{*} along the flow direction. Using different shear rates, acoustic energy densities, and particle concentrations, we show that the equilibrium width is governed by Peclet number Pe and Strouhal number Stasw^{*}=1.4(PeSt)^{-0.5} while the length required to obtain the equilibrium-focused width depends on St as L_{eq}^{*}=3.8/(St)^{0.6}. The proposed model and correlations would find significance in the design of microchannels for acoustic focusing of dense suspensions such as undiluted blood. PMID- 29347757 TI - Evolution of the pore size distribution in sheared binary glasses. AB - Molecular dynamics simulations are carried out to investigate mechanical properties and porous structure of binary glasses subjected to steady shear. The model vitreous systems were prepared via thermal quench at constant volume to a temperature well below the glass transition. The quiescent samples are characterized by a relatively narrow pore size distribution whose mean size is larger at lower glass densities. We find that in the linear regime of deformation, the shear modulus is a strong function of porosity, and the individual pores become slightly stretched while their structural topology remains unaffected. By contrast, with further increasing strain, the shear stress saturates to a density-dependent plateau value, which is accompanied by pore coalescence and a gradual development of a broader pore size distribution with a discrete set of peaks at large length scales. PMID- 29347758 TI - Turbulent diffusion of chemically reacting flows: Theory and numerical simulations. AB - The theory of turbulent diffusion of chemically reacting gaseous admixtures developed previously [T. Elperin et al., Phys. Rev. E 90, 053001 (2014)PLEEE81539 375510.1103/PhysRevE.90.053001] is generalized for large yet finite Reynolds numbers and the dependence of turbulent diffusion coefficient on two parameters, the Reynolds number and Damkohler number (which characterizes a ratio of turbulent and reaction time scales), is obtained. Three-dimensional direct numerical simulations (DNSs) of a finite-thickness reaction wave for the first order chemical reactions propagating in forced, homogeneous, isotropic, and incompressible turbulence are performed to validate the theoretically predicted effect of chemical reactions on turbulent diffusion. It is shown that the obtained DNS results are in good agreement with the developed theory. PMID- 29347759 TI - Isochoric, isobaric, and ultrafast conductivities of aluminum, lithium, and carbon in the warm dense matter regime. AB - We study the conductivities sigma of (i) the equilibrium isochoric state sigma_{is}, (ii) the equilibrium isobaric state sigma_{ib}, and also the (iii) nonequilibrium ultrafast matter state sigma_{uf} with the ion temperature T_{i} less than the electron temperature T_{e}. Aluminum, lithium, and carbon are considered, being increasingly complex warm dense matter systems, with carbon having transient covalent bonds. First-principles calculations, i.e., neutral pseudoatom (NPA) calculations and density-functional theory (DFT) with molecular dynamics (MD) simulations, are compared where possible with experimental data to characterize sigma_{ic}, sigma_{ib}, and sigma_{uf}. The NPA sigma_{ib} is closest to the available experimental data when compared to results from DFT with MD simulations, where simulations of about 64-125 atoms are typically used. The published conductivities for Li are reviewed and the value at a temperature of 4.5 eV is examined using supporting x-ray Thomson-scattering calculations. A physical picture of the variations of sigma with temperature and density applicable to these materials is given. The insensitivity of sigma to T_{e} below 10 eV for carbon, compared to Al and Li, is clarified. PMID- 29347760 TI - Anomalies in the equilibrium and nonequilibrium properties of correlated ions in complex molecular environments. AB - Emergent statistical attributes, and therefore the equations of state, of an assembly of interacting charge carriers embedded within a complex molecular environment frequently exhibit a variety of anomalies, particularly in the high density (equivalently, the concentration) regime, which are not well understood, because they do not fall under the low-concentration phenomenologies of Debye Huckel-Onsager and Poisson-Nernst-Planck, including their variants. To go beyond, we here use physical concepts and mathematical tools from quantum scattering theory, transport theory with the Stosszahlansatz of Boltzmann, and classical electrodynamics (Lorentz gauge) and obtain analytical expressions both for the average and the frequency-wave vector-dependent longitudinal and transverse current densities, diffusion coefficient, and the charge density, and therefore the analytical expressions for (a) the chemical potential, activity coefficient, and the equivalent conductivity for strong electrolytes and (b) the current voltage characteristics for ion-transport processes in complex molecular environments. Using a method analogous to the notion of Debye length and thence the electrical double layer, we here identify a pair of characteristic length scales (longitudinal and the transverse), which, being wave vector and frequency dependent, manifestly exhibit nontrivial fluctuations in space-time. As a unifying theme, we advance a quantity (inverse length dimension), g_{scat}^{(a)}, which embodies all dynamical interactions, through various quantum scattering lengths, relevant to molecular species a, and the analytical behavior which helps us to rationalize the properties of strong electrolytes, including anomalies, in all concentration regimes. As an example, the behavior of g_{scat}^{(a)} in the high-concentration regime explains the anomalous increase of the Debye length with concentration, as seen in a recent experiment on electrolyte solutions. We also put forth an extension of the standard diffusion equation, which manifestly incorporates the effects arising from the underlying microscopic collisions among constituent molecular species. Furthermore, we show a nontrivial connection between the current-voltage characteristics of electrolyte solutions and the Landauer's approach to electrical conduction in mesoscopic solids and thereby establish a definite conceptual bridge between the two disjoint subjects. For numerical insight, we present results on the aqueous solution of KCl as an example of strong electrolyte, and the transport (conduction as well as diffusion) of K^{+} ions in water, as an example of ion transport across the voltage-gated channels in biological cells. PMID- 29347761 TI - Analytical mesoscale modeling of aeolian sand transport. AB - The mesoscale structure of aeolian sand transport determines a variety of natural phenomena studied in planetary and Earth science. We analyze it theoretically beyond the mean-field level, based on the grain-scale transport kinetics and splash statistics. A coarse-grained analytical model is proposed and verified by numerical simulations resolving individual grain trajectories. The predicted height-resolved sand flux and other important characteristics of the aeolian transport layer agree remarkably well with a comprehensive compilation of field and wind-tunnel data, suggesting that the model robustly captures the essential mesoscale physics. By comparing the predicted saturation length with field data for the minimum sand-dune size, we elucidate the importance of intermittent turbulent wind fluctuations for field measurements and reconcile conflicting previous models for this most enigmatic emergent aeolian scale. PMID- 29347762 TI - Modified mean-field theory of the magnetic properties of concentrated, high susceptibility, polydisperse ferrofluids. AB - The effects of particle-size polydispersity on the magnetostatic properties of concentrated ferrofluids are studied using theory and computer simulation. The second-order modified mean-field (MMF2) theory of Ivanov and Kuznetsova [Phys. Rev. E 64, 041405 (2001)1063-651X10.1103/PhysRevE.64.041405] has been extended by calculating additional terms of higher order in the dipolar coupling constant in the expansions of the initial magnetic susceptibility and the magnetization curve. The theoretical predictions have been tested rigorously against results from Monte Carlo simulations of model monodisperse, bidisperse, and highly polydisperse ferrofluids. Comparisons have been made between systems with the same Langevin susceptibility and the same saturation magnetization. In all cases, the new theoretical magnetization curve shows better agreement with simulation data than does the MMF2 theory. As for the initial susceptibility, MMF2 theory is most accurate for the monodisperse model, while the new theory works best for polydisperse systems with a significant proportion of large particles. These results are important for the analysis and characterization of recently synthesized polydisperse ferrofluids with record-breaking values of the initial magnetic susceptibility. PMID- 29347763 TI - Rayleigh-Taylor instability and vortex rings in coupled Gross-Pitaevskii equations. AB - The Rayleigh-Taylor instability is a gravitational instability in two fluids where the heavier fluid is set over the lighter fluid. The instability occurs both in classical fluids and quantum fluids. We numerically study the Rayleigh Taylor instability using coupled Gross-Pitaevskii equations for two-component Bose-Einstein condensates. We carry out numerical simulations that the heavier component is set in a torus initially which is surrounded by the lighter component. When the torus falls, the Rayleigh-Taylor instability develops and a sagging pattern appears. This instability is investigated for the two cases with and without a vortex ring inside the torus. We find that a vortex ring suppresses the instability when the radius of the torus is small. PMID- 29347764 TI - Exact relations for energy transfer in self-gravitating isothermal turbulence. AB - Self-gravitating isothermal supersonic turbulence is analyzed in the asymptotic limit of large Reynolds numbers. Based on the inviscid invariance of total energy, an exact relation is derived for homogeneous (not necessarily isotropic) turbulence. A modified definition for the two-point energy correlation functions is used to comply with the requirement of detailed energy equipartition in the acoustic limit. In contrast to the previous relations (S. Galtier and S. Banerjee, Phys. Rev. Lett. 107, 134501 (2011)PRLTAO0031 900710.1103/PhysRevLett.107.134501; S. Banerjee and S. Galtier, Phys. Rev. E 87, 013019 (2013)PLEEE81539-375510.1103/PhysRevE.87.013019), the current exact relation shows that the pressure dilatation terms play practically no role in the energy cascade. Both the flux and source terms are written in terms of two-point differences. Sources enter the relation in a form of mixed second-order structure functions. Unlike the kinetic and thermodynamic potential energies, the gravitational contribution is absent from the flux term. An estimate shows that, for the isotropic case, the correlation between density and gravitational acceleration may play an important role in modifying the energy transfer in self gravitating turbulence. The exact relation is also written in an alternative form in terms of two-point correlation functions, which is then used to describe scale by-scale energy budget in spectral space. PMID- 29347765 TI - Laser-excited motion of liquid crystals confined in a microsized volume with a free surface. AB - The thermally excited vortical flow in a microsized liquid crystal (LC) volume with a free LC-air interface has been investigated theoretically based on the nonlinear extension of the Ericksen-Leslie theory, with accounting the entropy balance equation. Analysis of the numerical results show that due to interaction between the gradients of the director field ?n[over ] and temperature field ?T, caused by the focused heating, the thermally excited vortical fluid flow is maintained in the vicinity of the heat source. Calculations show that the magnitude and direction of the velocity field v, as well as the height of the LC air interface are influenced by the depth of the heat penetration in the LC volume. It has been shown that there is the point in the vicinity of the LC-air interface where the thermally excited vortical flow changes the direction from anticlockwise to clockwise. PMID- 29347766 TI - Correlations in eigenfunctions of quantum chaotic systems with sparse Hamiltonian matrices. AB - In most realistic models for quantum chaotic systems, the Hamiltonian matrices in unperturbed bases have a sparse structure. We study correlations in eigenfunctions of such systems and derive explicit expressions for some of the correlation functions with respect to energy. The analytical results are tested in several models by numerical simulations. Some applications are discussed for a relation between transition probabilities and for expectation values of some local observables. PMID- 29347767 TI - Sampling of temporal networks: Methods and biases. AB - Temporal networks have been increasingly used to model a diversity of systems that evolve in time; for example, human contact structures over which dynamic processes such as epidemics take place. A fundamental aspect of real-life networks is that they are sampled within temporal and spatial frames. Furthermore, one might wish to subsample networks to reduce their size for better visualization or to perform computationally intensive simulations. The sampling method may affect the network structure and thus caution is necessary to generalize results based on samples. In this paper, we study four sampling strategies applied to a variety of real-life temporal networks. We quantify the biases generated by each sampling strategy on a number of relevant statistics such as link activity, temporal paths and epidemic spread. We find that some biases are common in a variety of networks and statistics, but one strategy, uniform sampling of nodes, shows improved performance in most scenarios. Given the particularities of temporal network data and the variety of network structures, we recommend that the choice of sampling methods be problem oriented to minimize the potential biases for the specific research questions on hand. Our results help researchers to better design network data collection protocols and to understand the limitations of sampled temporal network data. PMID- 29347768 TI - Zealotry effects on opinion dynamics in the adaptive voter model. AB - The adaptive voter model has been widely studied as a conceptual model for opinion formation processes on time-evolving social networks. Past studies on the effect of zealots, i.e., nodes aiming to spread their fixed opinion throughout the system, only considered the voter model on a static network. Here we extend the study of zealotry to the case of an adaptive network topology co-evolving with the state of the nodes and investigate opinion spreading induced by zealots depending on their initial density and connectedness. Numerical simulations reveal that below the fragmentation threshold a low density of zealots is sufficient to spread their opinion to the whole network. Beyond the transition point, zealots must exhibit an increased degree as compared to ordinary nodes for an efficient spreading of their opinion. We verify the numerical findings using a mean-field approximation of the model yielding a low-dimensional set of coupled ordinary differential equations. Our results imply that the spreading of the zealots' opinion in the adaptive voter model is strongly dependent on the link rewiring probability and the average degree of normal nodes in comparison with that of the zealots. In order to avoid a complete dominance of the zealots' opinion, there are two possible strategies for the remaining nodes: adjusting the probability of rewiring and/or the number of connections with other nodes, respectively. PMID- 29347769 TI - Physics behind the mechanical nucleosome positioning code. AB - The positions along DNA molecules of nucleosomes, the most abundant DNA-protein complexes in cells, are influenced by the sequence-dependent DNA mechanics and geometry. This leads to the "nucleosome positioning code", a preference of nucleosomes for certain sequence motives. Here we introduce a simplified model of the nucleosome where a coarse-grained DNA molecule is frozen into an idealized superhelical shape. We calculate the exact sequence preferences of our nucleosome model and find it to reproduce qualitatively all the main features known to influence nucleosome positions. Moreover, using well-controlled approximations to this model allows us to come to a detailed understanding of the physics behind the sequence preferences of nucleosomes. PMID- 29347770 TI - Viscosity of two-dimensional strongly coupled dusty plasma modified by a perpendicular magnetic field. AB - Transport properties of two-dimensional (2D) strongly coupled dusty plasmas have been investigated in detail, but never for viscosity with a strong perpendicular magnetic field; here, we examine this scenario using Langevin dynamics simulations of 2D liquids with a binary Yukawa interparticle interaction. The shear viscosity eta of 2D liquid dusty plasma is estimated from the simulation data using the Green-Kubo relation, which is the integration of the shear stress autocorrelation function. It is found that, when a perpendicular magnetic field is applied, the shear viscosity of 2D liquid dusty plasma is modified substantially. When the magnetic field is increased, its viscosity increases at low temperatures, while at high temperatures its viscosity diminishes. It is determined that these different variational trends of eta arise from the different behaviors of the kinetic and potential parts of the shear stress under external magnetic fields. PMID- 29347771 TI - Hierarchy measurement for modeling network dynamics under directed attacks. AB - A fundamental issue in the dynamics of complex systems is the resilience of the network in response to targeted attacks. This paper explores the local dynamics of the network attack process by investigating the order of removal of the nodes that have maximal degree, and shows that this dynamic network response can be predicted from the graph's initial connectivity. We demonstrate numerically that the maximal degree M(tau) of the network at time step tau decays exponentially with tau via a topology-dependent exponent. Moreover, the order in which sites are removed can be approximated by considering the network's "hierarchy" function h, which measures for each node V_{i} how many of its initial nearest neighbors have lower degree versus those that have a higher one. Finally, we show that the exponents we identified for the attack dynamics are related to the exponential behavior of spreading activation dynamics. The results suggest that the function h, which has both local and global properties, is a novel nodal measurement for network dynamics and structure. PMID- 29347772 TI - Energy nonequipartition in gas mixtures of inelastic rough hard spheres: The tracer limit. AB - The dynamical properties of a tracer or impurity particle immersed in a host gas of inelastic and rough hard spheres in the homogeneous cooling state is studied. Specifically, the breakdown of energy equipartition as characterized by the tracer/host ratios of translational and rotational temperatures is analyzed by exploring a wide spectrum of values of the control parameters of the system (masses, moments of inertia, sizes, and coefficients of restitution). Three complementary approaches are considered. On the theoretical side, the Boltzmann and Boltzmann-Lorentz equations (both assuming the molecular chaos ansatz) are solved by means of a multitemperature Maxwellian approximation for the velocity distribution functions. This allows us to obtain explicit analytical expressions for the temperature ratios. On the computational side, two different techniques are used. First, the kinetic equations are numerically solved by the direct simulation Monte Carlo (DSMC) method. Second, molecular dynamics simulations for dilute gases are performed. Comparison between theory and simulations shows a general good agreement. This means that (i) the impact of the molecular chaos ansatz on the temperature ratios is not significant (except at high inelasticities and/or big impurities) and (ii) the simple Maxwellian approximation yields quite reliable predictions. PMID- 29347773 TI - Hypothesis testing of scientific Monte Carlo calculations. AB - The steadily increasing size of scientific Monte Carlo simulations and the desire for robust, correct, and reproducible results necessitates rigorous testing procedures for scientific simulations in order to detect numerical problems and programming bugs. However, the testing paradigms developed for deterministic algorithms have proven to be ill suited for stochastic algorithms. In this paper we demonstrate explicitly how the technique of statistical hypothesis testing, which is in wide use in other fields of science, can be used to devise automatic and reliable tests for Monte Carlo methods, and we show that these tests are able to detect some of the common problems encountered in stochastic scientific simulations. We argue that hypothesis testing should become part of the standard testing toolkit for scientific simulations. PMID- 29347774 TI - Local and global avalanches in a two-dimensional sheared granular medium. AB - We present the experimental and numerical studies of a two-dimensional sheared amorphous material composed of bidisperse photoelastic disks. We analyze the statistics of avalanches during shear including the local and global fluctuations in energy and changes in particle positions and orientations. We find scale-free distributions for these global and local avalanches denoted by power laws whose cutoffs vary with interparticle friction and packing fraction. Different exponents are found for these power laws depending on the quantity from which variations are extracted. An asymmetry in time of the avalanche shapes is evidenced along with the fact that avalanches are mainly triggered by the shear bands. A simple relation independent of the intensity is found between the number of local avalanches and the global avalanches they form. We also compare these experimental and numerical results for both local and global fluctuations to predictions from mean-field and depinning theories. PMID- 29347775 TI - Mode locking in systems of globally coupled phase oscillators. AB - We investigate the dynamics of a Kuramoto-type system of globally coupled phase oscillators with equidistant natural frequencies and a coupling strength below the synchronization threshold. It turns out that in such cases one can observe a stable regime of sharp pulses in the mean field amplitude with a pulsation frequency given by spacing of the natural frequencies. This resembles a process known as mode locking in lasers and relies on the emergence of a phase relation induced by the nonlinear coupling. We discuss the role of the first and second harmonics in the phase-interaction function for the stability of the pulsations and present various bifurcating dynamical regimes such as periodically and chaotically modulated mode locking, transitions to phase turbulence, and intermittency. Moreover, we study the role of the system size and show that in certain cases one can observe type II supertransients, where the system reaches the globally stable mode-locking solution only after an exponentially long transient of phase turbulence. PMID- 29347776 TI - Entropy, specific heat, susceptibility, and Rushbrooke inequality in percolation. AB - We investigate percolation, a probabilistic model for continuous phase transition, on square and weighted planar stochastic lattices. In its thermal counterpart, entropy is minimally low where order parameter (OP) is maximally high and vice versa. In addition, specific heat, OP, and susceptibility exhibit power law when approaching the critical point and the corresponding critical exponents alpha,beta,gamma respectably obey the Rushbrooke inequality (RI) alpha+2beta+gamma>=2. Their analogs in percolation, however, remain elusive. We define entropy and specific heat and redefine susceptibility for percolation and show that they behave exactly in the same way as their thermal counterpart. We also show that RI holds for both the lattices albeit they belong to different universality classes. PMID- 29347777 TI - Power output for a nonlinear Brownian machine. AB - We propose a method that makes use of the nonlinear properties of some hypothetical microscopic solid material as the working substance for a microscopic machine. The protocols used are simple (step and elliptic) and allow us to obtain the work and heat exchanged between machine and reservoirs. We calculate the work for a nonlinear single-particle machine that can be treated perturbingly. We obtain the instantaneous work and heat for the machine undergoing cycles that mimic the Carnot and multireservoir protocols. The work calculations are then extended to high values of the nonlinear parameter yielding the quasistatic limit, which is verified numerically. The model we propose is fluctuation driven and we can study in detail its thermostatistics, namely, the work distribution both per cycle and instantaneous and the corresponding fluctuation relations. PMID- 29347778 TI - Forces in inhomogeneous open active-particle systems. AB - We study the force that noninteracting pointlike active particles apply to a symmetric inert object in the presence of a gradient of activity and particle sources and sinks. We consider two simple patterns of sources and sinks that are common in biological systems. We analytically solve a one-dimensional model designed to emulate higher-dimensional systems, and study a two-dimensional model by numerical simulations. We specify when the particle flux due to the creation and annihilation of particles can act to smooth the density profile that is induced by a gradient in the velocity of the active particles, and find the net resultant force due to both the gradient in activity and the particle flux. These results are compared qualitatively to observations of nuclear motion inside the oocyte, that is driven by a gradient in activity of actin-coated vesicles. PMID- 29347779 TI - Effective viscosity of a suspension of flagellar-beating microswimmers: Three dimensional modeling. AB - Micro-organisms usually can swim in their liquid environment by flagellar or ciliary beating. In this numerical work, we analyze the influence of flagellar beating on the orbits of a swimming cell in a shear flow. We also calculate the effect of the flagellar beating on the rheology of a dilute suspension of microswimmers. A three-dimensional model is proposed for Chlamydomonas Reinhardtii swimming with a breaststroke-like beating of two anterior flagella modeled by two counter-rotating fore beads. The active swimmer model reveals unusual angular orbits in a linear shear flow. Namely, the swimmer sustains orientations transiently across the flow. Such behavior is a result of the interplay between shear flow and the swimmer's periodic beating motion of flagella, which exert internal torques on the cell body. This peculiar behavior has some significant consequences on the rheological properties of the suspension. We calculate Einstein's viscosity of the suspension composed of such isolated modeled microswimmers (dilute case) in a shear flow. We use numerical simulations based on a Rotne-Prager-like approximation for hydrodynamic interaction between simplified flagella and the cell body. The results show an increased intrinsic viscosity for active swimmer suspensions in comparison to nonactive ones as well as a shear thinning behavior in accordance with previous experimental measurements [Phys. Rev. Lett. 104, 098102 (2010)10.1103/PhysRevLett.104.098102]. PMID- 29347780 TI - Stochastic thermodynamics for a periodically driven single-particle pump. AB - We present the stochastic thermodynamic analysis of a time-periodic single particle pump, including explicit results for flux, thermodynamic force, entropy production, work, heat, and efficiency. These results are valid far from equilibrium. The deviations from the linear (Onsager) regime are discussed. PMID- 29347781 TI - Flow properties and hydrodynamic interactions of rigid spherical microswimmers. AB - We analyze a minimal model for a rigid spherical microswimmer and explore the consequences of its extended surface on the interplay between its self-propulsion and flow properties. The model is the first order representation of microswimmers, such as bacteria and algae, with rigid bodies and flexible propelling appendages. The flow field of such a microswimmer at finite distances significantly differs from that of a point-force (Stokeslet) dipole. For a suspension of microswimmers, we derive the grand mobility matrix that connects the motion of an individual swimmer to the active and passive forces and torques acting on all the swimmers. Our investigation of the mobility tensors reveals that hydrodynamic interactions among rigid-bodied microswimmers differ considerably from those among the corresponding point-force dipoles. Our results are relevant for the study of collective behavior of hydrodynamically interacting microswimmers by means of Stokesian dynamics simulations at moderate concentrations. PMID- 29347782 TI - Stationary uphill currents in locally perturbed zero-range processes. AB - Uphill currents are observed when mass diffuses in the direction of the density gradient. We study this phenomenon in stationary conditions in the framework of locally perturbed one-dimensional zero range processes (ZRPs). We show that the onset of currents flowing from the reservoir with smaller density to the one with larger density can be caused by a local asymmetry in the hopping rates on a single site at the center of the lattice. For fixed injection rates at the boundaries, we prove that a suitable tuning of the asymmetry in the bulk may induce uphill diffusion at arbitrarily large, finite volumes. We also deduce heuristically the hydrodynamic behavior of the model and connect the local asymmetry characterizing the ZRP dynamics to a matching condition relevant for the macroscopic problem. PMID- 29347783 TI - Subjamming transition in binary sphere mixtures. AB - We study the influence of particle-size asymmetry on structural evolution of randomly jammed binary sphere mixtures with varying large-sphere and small-sphere composition. Simulations of jammed packings are used to assess the transition from large-sphere dominant to small-sphere dominant mixtures. For weakly asymmetric particle sizes, packing properties evolve smoothly, but not monotonically, with increasing small-sphere composition, f. Our simulations reveal that at high values of ratio alpha of large- to small-sphere radii (alpha>=alpha_{c}~5.75), evolution of structural properties, such as packing density, fraction of jammed spheres, and contact statistics with f, exhibit features that suggest a sharp transition, either through discontinuities in structural measures or their derivatives. We argue that this behavior is related to the singular, composition dependence of close-packing fraction predicted in infinite aspect ratio mixtures alpha->infinity by the Furnas model, but occurring for finite valued range of alpha above a critical value, alpha_{c}~5.75. The existence of a sharp transition from small- to large-f values for alpha>=alpha_{c} can be attributed to the existence of a subjamming transition of small spheres within the interstices of jammed large spheres along the line of compositions f_{sub}(alpha). We argue that the critical value of finite-size asymmetry alpha_{c}?5.75 is consistent with the geometric criterion for the transmission of small-sphere contacts between neighboring tetrahedrally close packed interstices of large spheres, facilitating a cooperative subjamming transition of small spheres confined within the disjoint volumes. PMID- 29347784 TI - Parametric pulse amplification by acoustic quasimodes in electron-positron plasma. AB - In a recent paper, M. R. Edwards, N. J. Fisch, and J. M. Mikhailova [Phys. Rev. Lett. 116, 015004 (2016)PRLTAO0031-900710.1103/PhysRevLett.116.015004] reported that in electron-positron plasma stimulated Brillouin scattering is drastically enhanced, while stimulated Raman scattering is completely absent. However, when theory was compared to particle-in-cell (PIC) simulations, a discrepancy by at least a factor four appeared. Authors correctly argued that the disparity might be due to the fluid approximation of the low-frequency mode. They noted that a more precise analytic description of the acoustic resonance requires a kinetic approach, which was beyond the scope of the mentioned paper. Here we deliver the so-far-missing kinetic calculation. It shows quite good agreement with the PIC simulations presented in the above-mentioned paper by Edwards et al. The principal result of enhancement of Brillouin scattering and absence of Raman scattering remains valid. The Brillouin enhancement factors depend on electron temperature and background particle density. These dependencies as well as the transition to the well-known behavior of electron-ion plasma are discussed. It is also shown that pulse amplification in electron-positron plasma crosses over to the strong-coupling regime when the pump amplitude becomes large. Then, the fluid approximation becomes acceptable again. PMID- 29347785 TI - Discontinuous fluidization transition in time-correlated assemblies of actively deforming particles. AB - Tracking experiments in dense biological tissues reveal a diversity of sources for local energy injection at the cell scale. The effect of cell motility has been largely studied, but much less is known about the effect of the observed volume fluctuations of individual cells. We consider a microscopic model of "actively deforming" particles where local fluctuations of the particle size constitute a unique source of motion. We demonstrate that collective motion can emerge under the sole influence of such active volume fluctuations. We interpret the onset of diffusive motion as a nonequilibrium first-order phase transition, which arises at a well-defined amplitude of self-deformation. This behavior contrasts with the glassy dynamics produced by self-propulsion, but resembles the mechanical response of soft solids under mechanical deformation. It thus constitutes an example of an active yielding transition. PMID- 29347786 TI - Dynamics of a magnetic active Brownian particle under a uniform magnetic field. AB - The dynamics of a magnetic active Brownian particle undergoing three-dimensional Brownian motion, both translation and rotation, under the influence of a uniform magnetic field is investigated. The particle self-propels at a constant speed along its magnetic dipole moment, which reorients due to the interplay between Brownian and magnetic torques, quantified by the Langevin parameter alpha. In this work, the time-dependent active diffusivity and the crossover time (tau^{cross})-from ballistic to diffusive regimes-are calculated through the time dependent correlation function of the fluctuations of the propulsion direction. The results reveal that, for any value of alpha, the particle undergoes a directional (or ballistic) propulsive motion at very short times (t?tau^{cross}). In this regime, the correlation function decreases linearly with time, and the active diffusivity increases with it. It the opposite time limit (t?tau^{cross}), the particle moves in a purely diffusive regime with a correlation function that decays asymptotically to zero and an active diffusivity that reaches a constant value equal to the long-time active diffusivity of the particle. As expected in the absence of a magnetic field (alpha=0), the crossover time is equal to the characteristic time scale for rotational diffusion, tau_{rot}. In the presence of a magnetic field (alpha>0), the correlation function, the active diffusivity, and the crossover time decrease with increasing alpha. The magnetic field regulates the regimes of propulsion of the particle. Here, the field reduces the period of time at which the active particle undergoes a directional motion. Consequently, the active particle rapidly reaches a diffusive regime at tau^{cross}?tau_{rot}. In the limit of weak fields (alpha?1), the crossover time decreases quadratically with alpha, while in the limit of strong fields (alpha?1) it decays asymptotically as alpha^{-1}. The results are in excellent agreement with those obtained by Brownian dynamics simulations. PMID- 29347787 TI - Direct determination approach for the multifractal detrending moving average analysis. AB - In the canonical framework, we propose an alternative approach for the multifractal analysis based on the detrending moving average method (MF-DMA). We define a canonical measure such that the multifractal mass exponent tau(q) is related to the partition function and the multifractal spectrum f(alpha) can be directly determined. The performances of the direct determination approach and the traditional approach of the MF-DMA are compared based on three synthetic multifractal and monofractal measures generated from the one-dimensional p-model, the two-dimensional p-model, and the fractional Brownian motions. We find that both approaches have comparable performances to unveil the fractal and multifractal nature. In other words, without loss of accuracy, the multifractal spectrum f(alpha) can be directly determined using the new approach with less computation cost. We also apply the new MF-DMA approach to the volatility time series of stock prices and confirm the presence of multifractality. PMID- 29347788 TI - Particle transport across a channel via an oscillating potential. AB - Membrane protein transporters alternate their substrate-binding sites between the extracellular and cytosolic side of the membrane according to the alternating access mechanism. Inspired by this intriguing mechanism devised by nature, we study particle transport through a channel coupled with an energy well that oscillates its position between the two entrances of the channel. We optimize particle transport across the channel by adjusting the oscillation frequency. At the optimal oscillation frequency, the translocation rate through the channel is a hundred times higher with respect to free diffusion across the channel. Our findings reveal the effect of time-dependent potentials on particle transport across a channel and will be relevant for membrane transport and microfluidics application. PMID- 29347789 TI - Optimal paths on the road network as directed polymers. AB - We analyze the statistics of the shortest and fastest paths on the road network between randomly sampled end points. We find that, to a good approximation, the optimal paths can be described as directed polymers in a disordered medium, which belong to the Kardar-Parisi-Zhang universality class of interface roughening. Comparing the scaling behavior of our data with simulations of directed polymers and previous theoretical results, we are able to point out the few characteristics of the road network that are relevant to the large-scale statistics of optimal paths. Indeed, we show that the local structure is akin to a disordered environment with a power-law distribution which become less important at large scales where long-ranged correlations in the network control the scaling behavior of the optimal paths. PMID- 29347790 TI - Finite connected components in infinite directed and multiplex networks with arbitrary degree distributions. AB - This work presents exact expressions for size distributions of weak and multilayer connected components in two generalizations of the configuration model: networks with directed edges and multiplex networks with an arbitrary number of layers. The expressions are computable in a polynomial time and, under some restrictions, are tractable from the asymptotic theory point of view. If first partial moments of the degree distribution are finite, the size distribution for two-layer connected components in multiplex networks exhibits an exponent -3/2 in the critical regime, whereas the size distribution of weakly connected components in directed networks exhibits two critical exponents -1/2 and -3/2. PMID- 29347791 TI - Beyond the faster-is-slower effect. AB - The "faster-is-slower" effect arises when crowded people push each other to escape through an exit during an emergency situation. As individuals push harder, a statistical slowing down in the evacuation time can be achieved. The slowing down is caused by the presence of small groups of pedestrians (say, a small human cluster) that temporarily block the way out when trying to leave the room. The pressure on the pedestrians belonging to this blocking cluster increases for increasing anxiety levels and/or a larger number of individuals trying to leave the room through the same door. Our investigation shows, however, that very high pressures alter the dynamics in the blocking cluster and, thus, change the statistics of the time delays along the escaping process. A reduction in the long lasting delays can be acknowledged, while the overall evacuation performance improves. We present results on this phenomenon taking place beyond the faster-is slower regime. PMID- 29347792 TI - Resonances in a periodically driven bosonic system. AB - Periodically driven systems are a common topic in modern physics. In optical lattices specifically, driving is at the origin of many interesting phenomena. However, energy is not conserved in driven systems, and under periodic driving, heating of a system is a real concern. In an effort to better understand this phenomenon, the heating of single-band systems has been studied, with a focus on disorder- and interaction-induced effects, such as many-body localization. Nevertheless, driven systems occur in a much wider context than this, leaving room for further research. Here, we fill this gap by studying a noninteracting model, characterized by discrete, periodically spaced energy levels that are unbounded from above. We couple these energy levels resonantly through a periodic drive, and discuss the heating dynamics of this system as a function of the driving protocol. In this way, we show that a combination of stimulated emission and absorption causes the presence of resonant stable states. This will serve to elucidate the conditions under which resonant driving causes heating in quantum systems. PMID- 29347793 TI - Instabilities of an annulus flow between rotating cylinders in a helical magnetic field. AB - The stabilities of an annulus flow between the rotating inner and outer cylinders with an external helical magnetic field are studied by using the quasistatic approximation. It is shown numerically that for the spiral base flow with a zero axial pressure gradient, the helical magnetic field yields a helical traveling wave at a critical Reynolds number. This wave mode is revealed to be the most unstable mode by linear stability analysis. At higher Reynolds numbers, the first wave mode is superposed by a second antisymmetric helical wave mode, which travels with a higher phase velocity than the first mode. When the Reynolds number is increased further, the flow becomes turbulent, but the key features of the flow structure are still dominated by the first and the second wave modes. Furthermore, when a finite axial pressure gradient is applied to guarantee a zero axial flow rate, the annulus flow is found to be more unstable than the case with zero axial pressure gradient. PMID- 29347794 TI - Publisher's Note: Discovering phases, phase transitions, and crossovers through unsupervised machine learning: A critical examination [Phys. Rev. E 95, 062122 (2017)]. AB - This corrects the article DOI: 10.1103/PhysRevE.95.062122. PMID- 29347795 TI - Kibble-Zurek scaling of the irreversible entropy production. AB - If a system is driven at finite rate through a phase transition by varying an intensive parameter, the order parameter shatters into finite domains. The Kibble Zurek mechanism predicts the typical size of these domains, which are governed only by the rate of driving and the spatial and dynamical critical exponents. We show that also the irreversible entropy production fulfills a universal behavior, which however is determined by an additional critical exponent corresponding to the intensive control parameter. Our universal prediction is numerically tested in two systems exhibiting noise-induced phase transitions. PMID- 29347796 TI - Headward growth and branching in subterranean channels. AB - We investigate the erosive growth of channels in a thin subsurface sedimentary layer driven by hydrodynamic drag toward understanding subterranean networks and their relation to river networks charged by ground water. Building on a model based on experimental observations of fluid-driven evolution of bed porosity, we focus on the characteristics of the channel growth and their bifurcations in a horizontal rectangular domain subject to various fluid source and sink distributions. We find that the erosion front between low- and high-porosity regions becomes unstable, giving rise to branched channel networks, depending on the spatial fluctuations of the fluid flow near the front and the degree to which the flow is above the erodibility threshold of the medium. Focusing on the growth of a network starting from a single channel, and by identifying the channel heads and their branch points, we find that the number of branches increases sublinearly and is affected by the source distribution. The mean angles between branches are found to be systematically lower than river networks in humid climates and depend on the domain geometry. PMID- 29347797 TI - Relaxation, thermalization, and Markovian dynamics of two spins coupled to a spin bath. AB - It is shown that by fitting a Markovian quantum master equation to the numerical solution of the time-dependent Schrodinger equation of a system of two spin-1/2 particles interacting with a bath of up to 34 spin-1/2 particles, the former can describe the dynamics of the two-spin system rather well. The fitting procedure that yields this Markovian quantum master equation accounts for all non-Markovian effects in as much the general structure of this equation allows and yields a description that is incompatible with the Lindblad equation. PMID- 29347798 TI - Dispersion of the intrinsic neuronal periods affects the relationship of the entrainment range to the coupling strength in the suprachiasmatic nucleus. AB - Living beings on the Earth are subjected to and entrained (synchronized) to the natural 24-h light-dark cycle. Interestingly, they can also be entrained to an external artificial cycle of non-24-h periods. The range of these periods is called the entrainment range and it differs among species. In mammals, the entrainment range is regulated by a main clock located in the suprachiasmatic nucleus (SCN) which is composed of 10 000 neurons in the brain. Previous works have found that the entrainment range depends on the cellular coupling strength in the SCN. In particular, the entrainment range decreases with the increase of the cellular coupling strength, provided that all the neuronal oscillators are identical. However, the SCN neurons differ in the intrinsic periods that follow a normal distribution in a range from 22 to 28 h. In the present study, taking the dispersion of the intrinsic neuronal periods into account, we examined the relationship between the entrainment range and the coupling strength. Results from numerical simulations and theoretical analyses both show that the relationship is altered to be paraboliclike if the intrinsic neuronal periods are nonidentical, and the maximal entrainment range is obtained with a suitable coupling strength. Our results shed light on the role of the cellular coupling in the entrainment ability of the SCN network. PMID- 29347799 TI - Confinement effects in premelting dynamics. AB - We examine the effects of confinement on the dynamics of premelted films driven by thermomolecular pressure gradients. Our approach is to modify a well-studied setting in which the thermomolecular pressure gradient is driven by a temperature gradient parallel to an interfacially premelted elastic wall. The modification treats the increase in viscosity associated with the thinning of films, studied in a wide variety of materials, using a power law and we examine the consequent evolution of the confining elastic wall. We treat (1) a range of interactions that are known to underlie interfacial premelting and (2) a constant temperature gradient wherein the thermomolecular pressure gradient is a constant. The difference between the cases with and without the proximity effect arises in the volume flux of premelted liquid. The proximity effect increases the viscosity as the film thickness decreases thereby requiring the thermomolecular pressure driven flux to be accommodated at higher temperatures where the premelted film thickness is the largest. Implications for experiment and observations of frost heave are discussed. PMID- 29347800 TI - Roughness-enhanced transport in a tilted ratchet driven by Levy noise. AB - The enhanced transport of particles by roughness in a tilted rough ratchet potential subject to a Levy noise is investigated in this paper. Due to the roughness, the transport process exhibits quite different properties compared to the smooth case. We find that the roughness on the potential wall functions like a ladder to provide the convenience for particles to climb up but hinder them to slide down. The mean first passage time from one well to its right adjacent well and the mean velocity are, respectively, calculated versus the roughness, the external force, and the Levy stability index. Our results show that the roughness is able to induce an enhancement on the mean velocity of particles and accelerate the barrier crossing process. The general conditions require a small external force and a small Levy stability index. We find that with increasing external forces, the enhancement areas of roughness and Levy stability index both shrink. However, for the Levy stability index within the enhancement area, its increase will enlarge the enhancement area of roughness. On the contrary, under the same conditions we observe that for a Gaussian noise the roughness always reduces the corresponding mean velocity which is very different from the case of Levy noise. PMID- 29347801 TI - Erratum: Aging Wiener-Khinchin theorem and critical exponents of 1/f^{beta} noise [Phys. Rev. E 94, 052130 (2016)]. AB - This corrects the article DOI: 10.1103/PhysRevE.94.052130. PMID- 29347802 TI - Entropy production and volume contraction in thermostated Hamiltonian dynamics. AB - Patra et al. [Int. J. Bifurcat. Chaos 26, 1650089 (2016)IJBEE40218 127410.1142/S0218127416500899] recently showed that the time-averaged rates of entropy production and phase-space volume contraction are equal for several different molecular dynamics methods used to simulate nonequilibrium steady states in Hamiltonian systems with thermostated temperature gradients. This equality is a plausible statistical analog of the second law of thermodynamics. Here we show that those two rates are identically equal in a wide class of methods in which the thermostat variables z are determined by ordinary differential equations of motion (i.e., methods of the Nose-Hoover or integral feedback control type). This class of methods is defined by three relatively innocuous restrictions which are typically satisfied in methods of this type. PMID- 29347803 TI - Experimental determination of phase transitions by means of configurational entropies in finite Yukawa balls. AB - The phase transition of finite Yukawa balls (ordered systems of microspheres in a gaseous plasma environment) with less than 100 particles is studied experimentally by means of configurational entropies. We have developed cylindrical two- and three-particle-correlation functions to measure these entropies for multiple cluster sizes over a wide temperature range. The cluster temperature is finely tuned using a stochastic laser heating setup. It is shown that the correlation functions give a detailed insight into the structural properties of the cluster. The derived configurational entropies give a clear indication of the transition temperature from a solid-like to a fluid-like state. Comparing the transition temperatures of different sized clusters it is found that the transition temperature increases with cluster size in general agreement with theoretical predictions. PMID- 29347804 TI - Active nematic gels as active relaxing solids. AB - I propose a continuum theory for active nematic gels, defined as fluids or suspensions of orientable rodlike objects endowed with active dynamics, that is based on symmetry arguments and compatibility with thermodynamics. The starting point is our recent theory that models (passive) nematic liquid crystals as relaxing nematic elastomers. The interplay between viscoelastic response and active dynamics of the microscopic constituents is naturally taken into account. By contrast with standard theories, activity is not introduced as an additional term of the stress tensor, but it is added as an external remodeling force that competes with the passive relaxation dynamics and drags the system out of equilibrium. In a simple one-dimensional channel geometry, we show that the interaction between nonuniform nematic order and activity results in either a spontaneous flow of particles or a self-organization into subchannels flowing in opposite directions. PMID- 29347805 TI - Spectral signatures of activity-dependent neural feedback in the corticothalamic system. AB - The modulation of neural quantities by presynaptic and postsynaptic activities via local feedback processes is investigated by incorporating nonlinear phenomena such as relative refractory period, synaptic enhancement, synaptic depression, and habituation. This is done by introducing susceptibilities, which quantify the response in either firing threshold or synaptic strength to unit change in either presynaptic or postsynaptic activity. Effects on the power spectra are then analyzed for a realistic corticothalamic model to determine the spectral signatures of various nonlinear processes and to what extent these are distinct. Depending on the feedback processes, there can be enhancements or reductions in low-frequency and/or alpha power, splitting of the alpha resonance, and/or appearance of new resonances at high frequencies. These features in the power spectra allow processes to be fully distinguished where they are unique, or partly distinguished if they are common to only a subset of feedbacks, and can potentially be used to constrain the types, strengths, and dynamics of feedbacks present. PMID- 29347806 TI - Synchrony-induced modes of oscillation of a neural field model. AB - We investigate the modes of oscillation of heterogeneous ring networks of quadratic integrate-and-fire (QIF) neurons with nonlocal, space-dependent coupling. Perturbations of the equilibrium state with a particular wave number produce transient standing waves with a specific temporal frequency, analogously to those in a tense string. In the neuronal network, the equilibrium corresponds to a spatially homogeneous, asynchronous state. Perturbations of this state excite the network's oscillatory modes, which reflect the interplay of episodes of synchronous spiking with the excitatory-inhibitory spatial interactions. In the thermodynamic limit, an exact low-dimensional neural field model describing the macroscopic dynamics of the network is derived. This allows us to obtain formulas for the Turing eigenvalues of the spatially homogeneous state and hence to obtain its stability boundary. We find that the frequency of each Turing mode depends on the corresponding Fourier coefficient of the synaptic pattern of connectivity. The decay rate instead is identical for all oscillation modes as a consequence of the heterogeneity-induced desynchronization of the neurons. Finally, we numerically compute the spectrum of spatially inhomogeneous solutions branching from the Turing bifurcation, showing that similar oscillatory modes operate in neural bump states and are maintained away from onset. PMID- 29347807 TI - Role of matrix behavior in compressive fracture of bovine cortical bone. AB - In compressive fracture of dry plexiform bone, we examine the individual roles of overall mean porosity, the connectivity of the porosity network, and the elastic as well as the failure properties of the nonporous matrix, using a random spring network model (RSNM). Porosity network structure is shown to reduce the compressive strength by up to 30%. However, the load-bearing capacity increases with an increase in either of the matrix properties-the elastic modulus or the failure strain threshold. To validate the porosity-based RSNM model with available experimental data, bone-specific failure strain thresholds for the ideal matrix of similar elastic properties were estimated to be within 60% of each other. Further, we observe the avalanche size exponents to be independent of the bone-dependent parameters as well as the structure of the porosity network. PMID- 29347808 TI - Thermodynamic theory of dislocation-enabled plasticity. AB - The thermodynamic theory of dislocation-enabled plasticity is based on two unconventional hypotheses. The first of these is that a system of dislocations, driven by external forces and irreversibly exchanging heat with its environment, must be characterized by a thermodynamically defined effective temperature that is not the same as the ordinary temperature. The second hypothesis is that the overwhelmingly dominant mechanism controlling plastic deformation is thermally activated depinning of entangled pairs of dislocations. This paper consists of a systematic reformulation of this theory followed by examples of its use in analyses of experimentally observed phenomena including strain hardening, grain size (Hall-Petch) effects, yielding transitions, and adiabatic shear banding. PMID- 29347809 TI - Transient subdiffusion from an Ising environment. AB - We introduce a model in which a particle performs a continuous-time random walk (CTRW) coupled to an environment with Ising dynamics. The particle shows locally varying diffusivity determined by the geometrical properties of the underlying Ising environment, that is, the diffusivity depends on the size of the connected area of spins pointing in the same direction. The model shows anomalous diffusion when the Ising environment is at critical temperature. We show that any finite scale introduced by a temperature different from the critical one, or a finite size of the environment, cause subdiffusion only during a transient time. The characteristic time, at which the system returns to normal diffusion after the subdiffusive plateau depends on the limiting scale and on how close the temperature is to criticality. The system also displays apparent ergodicity breaking at intermediate time, while ergodicity breaking at longer time occurs only under the idealized infinite environment at the critical temperature. PMID- 29347810 TI - Plasma q-plate for generation and manipulation of intense optical vortices. AB - An optical vortex is a light wave with a twisting wavefront around its propagation axis and null intensity in the beam center. Its unique spatial structure of field lends itself to a broad range of applications, including optical communication, quantum information, superresolution microscopy, and multidimensional manipulation of particles. However, accessible intensity of optical vortices have been limited to material ionization threshold. This limitation might be removed by using the plasma medium. Here we propose the design of suitably magnetized plasmas which, functioning as a q-plate, leads to a direct conversion from a high-intensity Gaussian beam into a twisted beam. A circularly polarized laser beam in the plasma accumulates an azimuthal-angle dependent phase shift and hence forms a twisting wavefront. Our three-dimensional particle-in-cell simulations demonstrate extremely high-power conversion efficiency. The plasma q-plate can work in a large range of frequencies spanning from terahertz to the optical domain. PMID- 29347811 TI - Orientation-shape coupling between liquid crystal and membrane through the anchoring effect. AB - We perform a series of Monte Carlo simulations on an interface between a liquid crystal (LC) material in isotropic phase in its bulk and a surfactant membrane. These two objects are simulated using coarse-grained molecular models. We estimate physical properties of the membrane such as the interfacial tension and the bending rigidity, focusing on the anchoring effects of the membrane on the LC. According to our simulation results, when the strength of the homeotropic anchoring denoted by the anchoring parameter xi is increased, the interfacial tension decreases and the bending rigidity first increases in xi= 1) in UC with a sensitivity of 81.8% and 85.8%, respectively, and a specificity of 100% for both. Conclusions: FC was strongly associated with disease activity indices, serologic markers, and endoscopic activity in patients with IBD. QPOCT can be used more conveniently than ELISA to assess FC in clinical practice. PMID- 29347814 TI - [Customization of hormonal contraception]. AB - In the last few years new oral contraceptives have been marketed showing a better safety profile for women. They are the result of important changes made to the old compounds. As far as the estrogenic component, with the aim of decreasing side effects, the dose of ethinyl estradiol has been reduced and synthetic estrogens have been replaced by natural estradiol, further improving the safety profile. Also the progestin component in the last years has been changed in terms of dose, endocrine and metabolic characteristics. Levonorgestrel is an androgenic progestin, but now there is the possibility of choosing progestins without androgenic effect (gestodene and desogestrel) or progestins with antiandrogenic effect (cyproterone acetate, dienogest, drospirenone, chlormadinone acetate), very useful in patients with hyperandrogenism. Some of these progestins, like Drospirenone, represented the real held contributing, because of its antimineralcorticoid action, to reduce an important side effect like fluid retention; moreover there is the possibility to choose products with high progestogen effect on endometrium (dienogest, nomegestrole acetate), resulting very effective in women with abnormal uterine bleedings. Also the regimens of administration have been changed, by shortening or eliminating the tablet-free period; in this way the women may avoid premenstrual symptoms. The oral is not the only route of administration, but today there are alternative routes like transdermal, transvaginal, intrauterine and subcutaneous, reducing gastro intestinal interferences and possible mistakes in pill intake. PMID- 29347815 TI - Control over Electron-Phonon Interaction by Dirac Plasmon Engineering in the Bi2Se3 Topological Insulator. AB - Understanding the mutual interaction between electronic excitations and lattice vibrations is key for understanding electronic transport and optoelectronic phenomena. Dynamic manipulation of such interaction is elusive because it requires varying the material composition on the atomic level. In turn, recent studies on topological insulators (TIs) have revealed the coexistence of a strong phonon resonance and topologically protected Dirac plasmon, both in the terahertz (THz) frequency range. Here, using these intrinsic characteristics of TIs, we demonstrate a new methodology for controlling electron-phonon interaction by lithographically engineered Dirac surface plasmons in the Bi2Se3 TI. Through a series of time-domain and time-resolved ultrafast THz measurements, we show that, when the Dirac plasmon energy is less than the TI phonon energy, the electron phonon coupling is trivial, exhibiting phonon broadening associated with Landau damping. In contrast, when the Dirac plasmon energy exceeds that of the phonon resonance, we observe suppressed electron-phonon interaction leading to unexpected phonon stiffening. Time-dependent analysis of the Dirac plasmon behavior, phonon broadening, and phonon stiffening reveals a transition between the distinct dynamics corresponding to the two regimes as the Dirac plasmon resonance moves across the TI phonon resonance, which demonstrates the capability of Dirac plasmon control. Our results suggest that the engineering of Dirac plasmons provides a new alternative for controlling the dynamic interaction between Dirac carriers and phonons. PMID- 29347816 TI - Pb-Activated Amine-Assisted Photocatalytic Hydrogen Evolution Reaction on Organic Inorganic Perovskites. AB - We report here the reaction mechanism for explicit aqueous solvent quantum mechanics (QM) studies determining the energetics and reaction barriers for the photocatalytic hydrogen evolution reaction (HER) on CH3NH3PbI3 surface. We find that both the lead (Pb) atoms and the surface organic molecules play essential roles, leading to a two-step Pb-activated amine-assisted (PbAAA) reaction mechanism involving an intermediate lead hydride state. Both H of H2 product are extracted from surface organic molecules, while two protons from the solution migrate along water chains via the Grotthuss mechanism to replace the H in organic molecule. We obtain a reaction barrier of 1.08 eV for photochemical generation of H2 on CH3NH3PbI3 compared to 2.61 eV for the dark reaction. We expect this HER mechanism can also apply to the other organic perovskites, but the energy barriers and reaction rates may depend on the basicity of electrolyte and intrinsic structures of perovskites. PMID- 29347817 TI - Biochemical Basis of APOBEC3 Deoxycytidine Deaminase Activity on Diverse DNA Substrates. AB - The Apolipoprotein B mRNA editing complex (APOBEC) family of enzymes contains single-stranded polynucleotide cytidine deaminases. These enzymes catalyze the deamination of cytidine in RNA or single-stranded DNA, which forms uracil. From this 11 member enzyme family in humans, the deamination of single-stranded DNA by the seven APOBEC3 family members is considered here. The APOBEC3 family has many roles, such as restricting endogenous and exogenous retrovirus replication and retrotransposon insertion events and reducing DNA-induced inflammation. Similar to other APOBEC family members, the APOBEC3 enzymes are a double-edged sword that can catalyze deamination of cytosine in genomic DNA, which results in potential genomic instability due to the many mutagenic fates of uracil in DNA. Here, we discuss how these enzymes find their single-stranded DNA substrate in different biological contexts such as during human immunodeficiency virus (HIV) proviral DNA synthesis, retrotransposition of the LINE-1 element, and the "off-target" genomic DNA substrate. The enzymes must be able to efficiently deaminate transiently available single-stranded DNA during reverse transcription, replication, or transcription. Specific biochemical characteristics promote deamination in each situation to increase enzyme efficiency through processivity, rapid enzyme cycling between substrates, or oligomerization state. The use of biochemical data to clarify biological functions and alignment with cellular data is discussed. Models to bridge knowledge from biochemical, structural, and single molecule experiments are presented. PMID- 29347818 TI - Far-Red Fluorescent Probe for Imaging of Vicinal Dithiol-Containing Proteins in Living Cells Based on a pKa Shift Mechanism. AB - Vicinal dithiol-containing proteins (VDPs) play fundamental roles in intracellular redox homeostasis and are responsible for many diseases. In this work, we report a far-red fluorescence turn-on probe MCAs for VDPs exploiting the pKa shift of the imine functionality of the probe. MCAs is composed of a merocyanine Schiff base as the fluorescent reporter and a cyclic 1,3,2 dithiarsenolane as the specific ligand for VDPs. The imine pKa of MCAs is 4.8, and it exists predominantly in the Schiff base (SB) form at physiological pH. Due to the absence of a resonating positive charge, it absorbs at a relatively short wavelength and is essentially nonfluorescent. Upon selective binding to reduced bovine serum albumin (rBSA, selected as the model protein), MCAs was brought from aqueous media to the binding pockets of the protein, causing a large increase in pKa value of MCAs (pKa = 7.1). As a result, an increase in the protonated Schiff base (PSB) form of MCAs was observed at the physiological pH conditions, which in turn leads to a bathochromically shifted chromophore (lambdaabs = 634 nm) and a significant increase in fluorescence intensity (lambdaem = 657 nm) simultaneously. Furthermore, molecular dynamics simulations indicate that the salt bridges formed between the iminium in MCAs and the residues D72 and D517 in rBSA resist the dissociation of proton from the probe, thus inducing an increase of the pKa value. The proposed probe shows excellent sensitivity and specificity toward VDPs over other proteins and biologically relevant species and has been successfully applied for imaging of VDPs in living cells. We believe that the present pKa shift switching strategy may facilitate the development of new fluorescent probes that are useful for a wide range of applications. PMID- 29347819 TI - Presence of Rigid Red Blood Cells in Blood Flow Interferes with the Vascular Wall Adhesion of Leukocytes. AB - The symptoms of many blood diseases can often be attributed to irregularities in cellular dynamics produced by abnormalities in blood cells, particularly red blood cells (RBCs). Contingent on the disease and its severity, RBCs can be afflicted with increased membrane rigidity as seen in malaria and sickle cell disease. Despite this understanding, little experimental work has been conducted toward understanding the effect of RBC rigidity on cellular dynamics in physiologic blood flow. Though many have computationally modeled complex blood flow to postulate how RBC rigidity may disrupt normal hemodynamics, to date, there lacks a clear understanding of how rigid RBCs affect the blood cell segregation behavior in blood flow, known as margination, and the resulting change in the adhesion of white blood cells (WBCs). In this work, we utilized an in vitro blood flow model to examine how different RBC rigidities and volume fractions of rigid RBCs impact cell margination and the downstream effect on white blood cell (WBC) adhesion in blood flow. Healthy RBC membranes were rigidified and reconstituted into whole blood and then perfused over activated endothelial cells under physiologically relevant shear conditions. Rigid RBCs were shown to reduce WBC adhesion by up to 80%, contingent on the RBC rigidity and the fraction of treated RBCs present in blood flow. Furthermore, the RBC core was found to be slightly expanded with the presence of rigid RBCs, by up to ~30% in size fully composed of rigid RBCs. Overall, the obtained results demonstrate an impact of RBC rigidity on cellular dynamics and WBC adhesion, which possibly contributes to the pathological understanding of diseases characterized by significant RBC rigidity. PMID- 29347821 TI - Fluorescence and Excited-State Conformational Dynamics of the Orange Carotenoid Protein. AB - The orange carotenoid protein (OCP) mediates nonphotochemical quenching (NPQ) mechanisms in cyanobacteria. A bound ketocarotenoid serves as a sensor of midvisible light intensity and as a quencher of phycocyanobilin excitons in the phycobilisome. The photochemical mechanism that triggers conversion of the protein from a resting, orange state (OCPO) to an active, red state (OCPR) after optical preparation of the S2 state of the carotenoid remains an open question. We report here that the fluorescence spectrum and quantum yield of the bound carotenoids in OCPO report important details of the motions that follow optical preparation of the S2 state. The fluorescence spectra from OCPO preparations containing 3'-hydroxyechinenone (3hECN) or canthaxanthin (CAN) are markedly mirror asymmetric with respect to the absorption line shape and more than an order of magnitude more intense than for carotenoids in solution. Further, 3hECN exhibits a narrower fluorescence line shape and a larger quantum yield than CAN because its excited-state motions are hindered by a hydrogen bonding interaction between the 3'-hydroxyl group on its beta2 ring and Leu37 in the N-terminal domain. These results show that large-amplitude motions of the carotenoid's beta2 cyclohexene ring and of the conjugated polyene backbone initiate photochemistry in OCPO. PMID- 29347825 TI - Increasing condom usage for African-American and hispanic young fathers in a community based intervention. AB - OBJECTIVES: This paper investigates a community-based intervention for young fathers, FatherWorks, compared to care-as-usual, 24/7 Dads. We hypothesized that utilizing the FatherWorks intervention (a 15 session parenting intervention, 13 session employment class, paid internship, case management, and access to behavioral health services) will assist in readiness to use condoms and increase condom usage, which may differ by race/ethnicity. METHODS: Eligible males (n = 328) were enrolled into a Randomized Control Trial. Participants were 15-24 years old and had fathered one or more children with a female under the age of 21. A survey was taken at baseline and at 15 weeks following the intervention. RESULTS: Analyses of changes indicated that intervention participants improved from the pre-contemplation stage of condom usage towards contemplation, and from preparation to action. The pattern of improvement in the condom use stage of change was different in African-American versus Hispanic participants. Changes in condom use during last intercourse were not significant. CONCLUSIONS: Study findings indicate that FatherWorks is successful in increasing the intent to use condoms, with the effect manifesting differently in African-American and Hispanic young fathers. Future work with minority fathers indicates a need for cultural adaptation of the intervention. PMID- 29347826 TI - Acceptability of HIV cure-related trials: the challenges for physicians and people living with HIV (ANRS-APSEC). AB - Essential HIV cure-related clinical trials (HCRCT) have a potentially high-risk profile in terms of participants' health, which could hinder enrollment by people living with HIV (PLWH) and healthcare professionals (HP). The ANRS-APSEC survey is part of the IAS "Towards an HIV cure" initiative, which promotes multidisciplinary research for a safe, affordable and scalable cure. The study objectives were to understand the psychosocial mechanisms underlying PLWH and HP viewpoints about future HCRCT. Six focus group discussions (three with PLWH (n = 21) and three with HP (n = 30)) were held in three French infectious disease units. From these, three perspectives on HCRCT were identified. The first involved beliefs and knowledge associating HCRCT with poorer health and quality of life for PLWH. The second concerned perceptions of HCRCT as a biological and epidemiological flashback to a situation when HIV infection was left uncontrolled. The third was characterized by aspects of historical HIV culture that embrace innovation. PMID- 29347827 TI - Psychological well-being and adherence to antiretroviral therapy among adolescents living with HIV in Zambia. AB - Physical and psychosocial changes during adolescence could influence the psychological well-being and adherence to antiretroviral therapy (ART) of adolescents living with HIV. However, few studies have assessed these two important issues in Zambia. This study aimed at addressing this gap by examining adolescents' depressive symptoms and ART adherence. This was a mixed-methods study conducted from April to July 2014. We recruited 200 adolescents, ages 15 to 19, who were already aware of their HIV status. We measured depressive symptoms using the short form of the Center for Epidemiologic Studies Depression Scale, and self-reported three-day adherence to ART. We performed logistic regression analysis to identify factors associated with depressive symptoms and non adherence to ART. For qualitative data, we examined challenges over ART adherence using thematic analysis. Out of 190 adolescents, 25.3% showed high scores of depressive symptoms. Factors associated with depressive symptoms were unsatisfactory relationships with family (Adjusted Odds Ratio [AOR] 3.01; 95% Confidence Interval [CI] 1.20-7.56); unsatisfactory relationships with health workers (AOR 2.68; 95% CI 1.04-6.93); and experience of stigma (AOR 2.99; 95% CI 1.07-8.41). Of all participants, 94.2% were taking ART, but 28.3% were non adherent. Factors associated with non-adherence to ART were loss of a mother (AOR 3.00; 95% CI 1.05-8.58) and lack of basic knowledge about HIV (AOR 3.25; 95% CI 1.43-7.40). Qualitative data identified the following challenges to ART adherence: management of medication, physical reactions to medicine, and psychosocial distress. The evidence suggests that depressive symptoms and non adherence to ART were priority issues in late adolescence in Zambia. Health workers should be aware of these issues, and the care and treatment services should be tailored to respond to age-specific needs. PMID- 29347828 TI - Change in HIV-related stigma in South Africa between 2004 and 2016: a cross sectional community study. AB - A critical component of an AIDS-free generation is to reduce HIV-related stigma. Previous research predicted that stigma would decline over time with increased contact with PLWH, understanding of the disease and availability of treatment. The aim of the research was to explore change in stigma over a 12-year period, by comparing data collected from two large cross-sectional samples from South African communities in 2004 (before the roll-out of antiretroviral treatment (ART)) and in 2016. Students recruited respondents according to criteria related to age, gender, race and area of living. A survey assessing moral judgement and interpersonal distance was used to assess personal and perceived community stigma. Responses to ten identical items used in the 2004 and 2016 data collection were compared. Personal stigma attached to HIV decreased significantly over time, except in respect of having close contact with PLWH, such as dating and befriending. Perceived community stigma remained high in all subgroups. It is argued that perceived community stigma contributes to high levels of internalised stigma among PLWH. Interventions should focus on helping PLWH to cope with perceived stigma and strategies to address stereotyping, which contributes to perceived community stigma. PMID- 29347829 TI - Biofilm community structure and the associated drag penalties of a groomed fouling release ship hull coating. AB - Grooming is a proactive method to keep a ship's hull free of fouling. This approach uses a frequent and gentle wiping of the hull surface to prevent the recruitment of fouling organisms. A study was designed to compare the community composition and the drag associated with biofilms formed on a groomed and ungroomed fouling release coating. The groomed biofilms were dominated by members of the Gammaproteobacteria and Alphaproteobacteria as well the diatoms Navicula, Gomphonemopsis, Cocconeis, and Amphora. Ungroomed biofilms were characterized by Phyllobacteriaceae, Xenococcaceae, Rhodobacteraceae, and the pennate diatoms Cyclophora, Cocconeis, and Amphora. The drag forces associated with a groomed biofilm (0.75 +/- 0.09 N) were significantly less than the ungroomed biofilm (1.09 +/- 0.06 N). Knowledge gained from this study has helped the design of additional testing which will improve grooming tool design, minimizing the growth of biofilms and thus lowering the frictional drag forces associated with groomed surfaces. PMID- 29347830 TI - An OMIC biomarker detection algorithm TriVote and its application in methylomic biomarker detection. AB - AIM: Transcriptomic and methylomic patterns represent two major OMIC data sources impacted by both inheritable genetic information and environmental factors, and have been widely used as disease diagnosis and prognosis biomarkers. MATERIALS & METHODS: Modern transcriptomic and methylomic profiling technologies detect the status of tens of thousands or even millions of probing residues in the human genome, and introduce a major computational challenge for the existing feature selection algorithms. This study proposes a three-step feature selection algorithm, TriVote, to detect a subset of transcriptomic or methylomic residues with highly accurate binary classification performance. RESULTS & CONCLUSION: TriVote outperforms both filter and wrapper feature selection algorithms with both higher classification accuracy and smaller feature number on 17 transcriptomes and two methylomes. Biological functions of the methylome biomarkers detected by TriVote were discussed for their disease associations. An easy-to-use Python package is also released to facilitate the further applications. PMID- 29347831 TI - Racial/ethnic disparities in human papillomavirus vaccination initiation and completion among U.S. women in the post-Affordable Care Act era. AB - OBJECTIVE: To ascertain the magnitude and potential mechanisms of racial/ethnic disparities in initiating and completing the 3-dose human papillomavirus (HPV) vaccine among U.S. women in the post-Affordable Care Act era. DESIGN: Using 2015 National Health Interview Survey data, we used logistic regression to estimate odds ratios (OR) and 95% confidence intervals (CI) for the association between race/ethnicity and HPV vaccination initiation and completion among black, Latina, Asian, and white U.S. women aged 18-31 years, adjusting for age and geographic region. We also examined the role of socioeconomic and health care factors in potentially explaining racial/ethnic disparities in HPV vaccine uptake and stratified our analyses by age (ages 18-22 and 23-31 years). RESULTS: The prevalence of HPV vaccination initiation and completion among U.S. women aged 18 31 years overall was 35.4% and 22.7%, respectively. We observed no statistically significant difference in the odds of HPV vaccination initiation or completion by race/ethnicity among women aged 18-22 years, adjusting for age and geographic region. Among women aged 23-31 years, Latina ([odds ratio=] 0.59; [95% confidence interval:] 0.47, 0.76) and Asian (0.51; 0.34, 0.75) women had significantly lower adjusted odds of initiating HPV vaccination compared to white women. Further, relative to white women, black (0.46; 0.32, 0.67), Latina (0.45; 0.32, 0.64), and Asian (0.46; 0.28, 0.78) women had significantly lower adjusted odds of completing HPV vaccination. Adding socioeconomic factors to the models attenuated the HPV vaccination initiation adjusted odds ratios for Latina vs. white women and the HPV vaccination completion adjusted odds ratios for both black and Latina vs. white women. The inclusion of health care factors into the models did not further attenuate these odds ratios. CONCLUSION: Policies and programs that promote socioeconomic equity may mitigate HPV vaccination disparities between black and Latina women and white women. Additional research is needed to identify the drivers of HPV vaccination disparities between subgroups of Asian women and white women. PMID- 29347832 TI - Wire Placement in the Sustentaculum Tali Using a 2D Projection-Based Software Application for Mobile C-Arms: Cadaveric Study. AB - BACKGROUND: Indirect screw fixation of the sustentaculum tali in the lateral medial direction can be challenging due to the complex calcaneal anatomy. A novel 2-dimensional (2D) projection-based software application detects Kirschner wires (K-wires) and visualizes their intended direction as a colored trajectory. The aim of this prospectively randomized cadaver study was to investigate whether the software would facilitate the indirect K-wire placement in the sustentaculum tali. METHODS: In 20 cadaver foot specimens, K-wires were placed indirectly in the sustentaculum tali by an experienced and an inexperienced surgeon, with and without using the application. Number of placement attempts, duration of procedure, fluoroscopy time, and number of individual fluoroscopy images were recorded. Each wire's position was analyzed in a 3-dimensional (3D) C-arm scan by an experienced blinded investigator. RESULTS: Use of the software by the inexperienced surgeon significantly reduced the number of placement attempts from 3.2 to 1.2 ( P = .006). The application also reduced operating time, from 273 s to 199 s ( P = .15), and fluoroscopy time, from 41 s to 29 s ( P = .15). Using the software, the experienced surgeon had a longer operating time (139 s to 183 s; P = .30), longer fluoroscopy time (5.6 s to 9.2 s; P = .17), and more individual fluoroscopy images (11.6 to 14.8; P = .30). Wire position did not show significant differences in both cases. CONCLUSION: During indirect K-wire placement in the sustentaculum tali, the software appeared to be a useful tool for the inexperienced surgeon. In our chosen study setting, the experienced surgeon did not benefit from the software. CLINICAL RELEVANCE: Possible indications for the software would be fractures of the proximal femur, sacrum, sacroiliac instabilities, vertebral bodies, scaphoid, Lisfranc joint, talus and calcaneus. PMID- 29347833 TI - How should we understand family-centred care? AB - What is family-centred care of a hospitalized child? A critical understanding of the concept of family-centred care is necessary if this widely preferred model is to be differentiated from other health care ideals and properly evaluated as appropriate to the care of hospitalized children. The article identifies distinguishable interpretations of family-centred care that can pull health professionals in different, sometimes conflicting directions. Some of these interpretations are not qualitatively different from robust interpretations of the ideals of parental participation, care-by-parent and partnership in care that are said to be the precursors of family-centred care. A prominent interpretation that regards the child and his or her family collectively as the 'unit of care' arguably arises from ambiguity and is significantly problematic as a model for the care of hospitalized children. Clinical practice driven by this interpretation can include courses of action that do not aim to do what will best promote a hospitalized child's welfare, and such cases will not be unusual. More broadly, this interpretation raises challenging questions about the responsibilities and authority of health professionals in relation to the interests of hospitalized children and their families. PMID- 29347834 TI - Acute Care Use for Ambulatory Care-Sensitive Conditions in High-Cost Users of Medical Care with Mental Illness and Addictions. AB - OBJECTIVE: The role of mental illness and addiction in acute care use for chronic medical conditions that are sensitive to ambulatory care management requires focussed attention. This study examines how mental illness or addiction affects risk for repeat hospitalization and/or emergency department use for ambulatory care-sensitive conditions (ACSCs) among high-cost users of medical care. METHOD: A retrospective, population-based cohort study using data from Ontario, Canada. Among the top 10% of medical care users ranked by cost, we determined rates of any and repeat care use (hospitalizations and emergency department [ED] visits) between April 1, 2011, and March 31, 2012, for 14 consensus established ACSCs and compared them between those with and without diagnosed mental illness or addiction during the 2 years prior. Risk ratios were adjusted (aRR) for age, sex, residence, and income quintile. RESULTS: Among 314,936 high-cost users, 35.9% had a mental illness or addiction. Compared to those without, individuals with mental illness or addiction were more likely to have an ED visit or hospitalization for any ACSC (22.8% vs. 19.6%; aRR, 1.21; 95% confidence interval [CI], 1.20-1.23). They were also more likely to have repeat ED visits or hospitalizations for the same ACSC (6.2% vs. 4.4% of those without; aRR, 1.48; 95% CI, 1.44-1.53). These associations were stronger in stratifications by mental illness diagnostic subgroup, particularly for those with a major mental illness. CONCLUSIONS: The presence of mental illness and addiction among high-cost users of medical services may represent an unmet need for quality ambulatory and primary care. PMID- 29347835 TI - Senna occidentalis (L.) Link and Senna hirsuta (L.) H. S. Irwin & Barneby: constituents of fruit essential oils and antimicrobial activity. AB - Senna occidentalis and S. hirsuta are mostly gathered from the wild for medicinal use and have a disagreeable odour when crushed. The volatile oils isolated from fresh fruits of S. occidentalis and S. hirsuta were subjected to gas chromatography (GC), gas chromatography-mass spectrometry (GC-MS) and antimicrobial assays. GC and GC-MS analyses permitted the identification of 58 constituents. S. occidentalis oil was dominated by cyperene (10.8%), beta caryophyllene (10.4%), limonene (8.0%) and caryophyllene oxide (6.8%). The main components of S. hirsuta fruit oil were benzyl benzoate (24.7%), tau-cadinol (18.9%), 2,5-dimethoxy-p-cymene (14.6%) and beta-caryophyllene (5.1%). S. occidentalis fruit oil exhibited better antimicrobial activity (MIC 78-312 MUg/mL) against Escherichia coli, Staphylococcus aureus, Bacillus subtilis and Aspergillus niger compared with S. hirsuta oil. The compositions and the activities of the fruit essential oils of S. occidentalis and S. hirsuta are reported for the first time. PMID- 29347836 TI - Strategies to overcome resistance mutations of Bruton's tyrosine kinase inhibitor ibrutinib. AB - Ibrutinib, as the first Bruton's tyrosine kinase (Btk) inhibitor, has been shown to have clinically significant activity in leukemias and lymphomas. However, the initially responsive tumors will develop resistance during the process of treatment in few patients. Here, we summarized the mechanism of acquired resistance and suggested the next-generation Btk inhibitors that override the target resistance. Moreover, the development of combination of selective antagonists or inhibitors targeting to multiple protein kinases have increased therapeutic potency to reduce the risk of the emergence of kinases inhibitor resistance. Thus, the reported combination of therapeutic drugs as an alternative therapy to overcome ibrutinib collapse or reduce the risk of the emergence of Btk inhibitor resistance also has been reviewed. PMID- 29347837 TI - Child Maltreatment and Physical Victimization: Does Heavy Drinking Mediate the Relationship? AB - Past studies examining the child maltreatment (CM)/victimization pathway have been limited by their focus on sexual victimization, narrow windows of assessment, and failure to examine gender differences. In the current study, we sought to examine (1) the impact of CM on physical victimization (PV) trajectories from adolescence to young adulthood and (2) the extent to which heavy drinking mediated the relationship between CM and later PV. Using three waves of the National Longitudinal Study of Adolescent to Adult Health, we found that CM was associated with a 69% greater odds of later PV for both genders, after the inclusion of control variables, and that the risk continued into adulthood. Further, heavy drinking was found to mediate the CM/victimization pathway at Wave I, but not at later waves. When mediation was examined separately for men and women, support for mediation was found for men and women. The current study suggests that CM represents a liability for interpersonal violence for both genders and highlights the importance of looking at victimization across time. PMID- 29347838 TI - Bacilsubteramide A, a new indole alkaloid, from the deep-sea-derived Bacillus subterraneus 11593. AB - From the deep-sea-derived bacterium Bacillus subterraneus 11593, a new indole alkaloid (1) was isolated along with three known compounds (2-4). By detailed analysis of its NMR spectroscopic data, and further by the theoretical ECD calculations, the absolute configuration of the new compound was determined to be (R)-N-[2-(3-hydroxy-2-oxoindolin-3-yl)ethyl]acetamide, and named bacilsubteramide A. All four isolates were tested for anti-allergic bioactivities; however, none exhibited positive effect (IC50 > 0.2 mM). Noteworthily, it is the first report on secondary metabolites from the bacterium B. subterraneus. PMID- 29347839 TI - Brain metastases epidemiology in a Tunisian population: trends and outcome. AB - AIM: We reported anatomo-clinical features of brain metastases (BMs) collected in a Tunisian medical oncology department. PATIENTS & METHODS: We retrospectively identified all cases of BM within a cohort of 7055 patients, treated for a histologically confirmed nonhematological cancer between 2000 and 2016. Data about age, sex and primary tumor were collected. RESULTS: Incidence was 1.9% and mean age was 54 years with a 1.24 sex ratio. BMs were symptomatic in 73.7% of cases after a median time of 16 months. A total of 73.4% patients receiving local therapy, 88% by whole brain radiation therapy and 21.6% had a metastasectomy. Lung and breast cancers were the primary in 80% of the BM. CONCLUSION: BM showed trends of young with underestimated incidence. PMID- 29347840 TI - Barriers and Enablers to the Implementation of School Wellness Policies: An Economic Perspective. AB - BACKGROUND: Local wellness policies (LWPs) are mandated among school systems to enhance nutrition/physical activity opportunities in schools. Prior research notes disparities in LWP implementation. This study uses mixed methods to examine barriers/enablers to LWP implementation, comparing responses by student body income. METHOD: Schools ( n = 744, 24 systems) completed an LWP implementation barriers/enablers survey. Semistructured interviews ( n = 20 random subsample) described barriers/enablers. Responses were compared by majority of lower (>=50% free/reduced-price meals; lower income [LI]) versus higher income (HI) student body. RESULTS: In surveys, LI and HI schools identified common barriers (parents/families, federal/state regulations, students, time, funding) and enablers (school system, teachers, food service, physical education curriculum/resources, and staff). Interviews further elucidated how staffing and funding served as enablers for all schools, and provide context for how and why barriers differed by income: time, food service (HI schools), and parents/families (LI schools). CONCLUSIONS: Findings support commonalities in barriers and enablers among all schools, suggesting that regardless of economic context, schools would benefit from additional supports, such as physical education and nutrition education resources integrated into existing curricula, additional funding, and personnel time dedicated to wellness programming. LI schools may benefit from additional funding to support parent and community involvement. PMID- 29347841 TI - Evolutionary Effect on the Embodied Beauty of Landscape Architectures. AB - According to the framework of evolutionary aesthetics, a sense of beauty is related to environmental adaptation and plasticity of human beings, which has adaptive value and biological foundations. Prior studies have demonstrated that organisms derive benefits from the landscape. In this study, we investigated whether the benefits of landscape might elicit a stronger sense of beauty and what the nature of this sense of beauty is. In two experiments, when viewing classical landscape and nonlandscape architectures photographs, participants rated the aesthetic scores (Experiment 1) and had a two-alternative forced choice aesthetic judgment by pressing the reaction button located near to (15 cm) or far from (45 cm) the presenting stimuli (Experiment 2). The results showed that reaction of aesthetic ratings for classical landscape architectures was faster than those of classical nonlandscape architectures. Furthermore, only the reaction of beautiful judgment of classical landscape architecture photograph was significantly faster when the reaction button was in the near position to the presenting photograph than those in the position of far away from the presenting photograph. This finding suggests a facilitated effect for the aesthetic perception of classical landscape architectures due to their corresponding components including water and green plants with strong evolutionary implications. Furthermore, this sense of beauty for classical landscape architectures might be the embodied approach to beauty based on the viewpoint of evolutionary aesthetics and embodied cognition. PMID- 29347842 TI - In vitro antioxidant potential and in vivo effects of Schinus terebinthifolia Raddi leaf extract in diabetic rats and determination of chemical composition by HPLC-ESI-MS/MS. AB - The present study investigated the in vitro and in vivo antioxidant potential and phytochemical composition of Schinus terebinthifolia, which is widely used in folk medicine for various therapeutic purposes. The in vitro analyses indicated that the hydroethanolic extract (HE) had 312.50 +/- 0.50 mg GAE/g of total phenols. It also presented anti-DPPH* and anti-ABTS*+ activity, reduced phosphomolybden and metal ions and blocked the bleaching of beta-carotene. The HE at concentrations of 3.0 and 2.0 MUg/mL had TRAP values of 2.223 +/- 0.018 and 1.894 +/- 0.026 MUM Trolox, respectively. The HE increased the availability of antioxidants in plasma in treated animals in vivo. HPLC-ESI-MS/MS indicated the presence of 11 phenols: cumaric acid, (+)-catechin, myricetin-3-O-glicuronide, kaempferol-3-O-glucoside, myricetin, myricitrin, quercetin, gallic acid, methyl galate, pentagalloyl glucose and ethyl galate. Thus, S. terebinthifolia has potential for the prevention or treatment of diseases that are related to oxidative stress, such as diabetes mellitus. PMID- 29347843 TI - Combinatorial design and virtual screening of potent anti-tubercular fluoroquinolone and isothiazoloquinolone compounds utilizing QSAR and pharmacophore modelling. AB - The virulence of tuberculosis infections resistant to conventional combination drug regimens cries for the design of potent fluoroquinolone compounds to be used as second line antimycobacterial chemotherapeutics. One of the most effective in silico methods is combinatorial design and high throughput screening by a ligand based pharmacophore prior to experiment. The combinatorial design of a series of 3850 fluoroquinolone and isothiazoloquinolone compounds was then screened virtually by applying a topological descriptor based quantitative structure activity relationship (QSAR) for predicting highly active congeneric quinolone leads against Mycobacterium fortuitum and Mycobacterium smegmatis. The predicted highly active congeneric hits were then subjected to a comparative study between existing lead sparfloxacin with fluoroquinolone FQ hits as well as ACH-702 with predicted active isothiazoloquinolones, utilizing pharmacophore modelling to focus on the mechanism of drug binding against mycobacterial DNA gyrase. Finally, 68 compounds including 34 FQ and 34 isothiazoloquinolones were screened through high throughput screening comprising QSAR, the Lipinski rule of five and ligand based pharmacophore modelling. PMID- 29347844 TI - Docking analysis targeted to the whole enzyme: an application to the prediction of inhibition of PTP1B by thiomorpholine and thiazolyl derivatives. AB - PTP1b is a protein tyrosine phosphatase involved in the inactivation of insulin receptor. Since inhibition of PTP1b may prolong the action of the receptor, PTP1b has become a drug target for the treatment of type II diabetes. In the present study, prediction of inhibition using docking analysis targeted specifically to the active or allosteric site was performed on 87 compounds structurally belonging to 10 different groups. Two groups, consisting of 15 thiomorpholine and 10 thiazolyl derivatives exhibiting the best prediction results, were selected for in vitro evaluation. All thiomorpholines showed inhibitory action (with IC50 = 4-45 MUMU, Ki = 2-23 MUM), while only three thiazolyl derivatives showed low inhibition (best IC50 = 18 MUMU, Ki = 9 MUMU). However, free binding energy (E) was in accordance with the IC50 values only for some compounds. Docking analysis targeted to the whole enzyme revealed that the compounds exhibiting IC50 values higher than expected could bind to other peripheral sites with lower free energy, Eo, than when bound to the active/allosteric site. A prediction factor, E- (SigmaEo * 0.16), which takes into account lower energy binding to peripheral sites, was proposed and was found to correlate well with the IC50 values following an asymmetrical sigmoidal equation with r2 = 0.9692. PMID- 29347845 TI - Introductory paragraph. PMID- 29347847 TI - Combining cell and gene therapy to advance cardiac regeneration. AB - INTRODUCTION: The characterization of multipotent endogenous cardiac stem cells (eCSCs) and the breakthroughs of somatic cell reprogramming to boost cardiomyocyte replacement have fostered the prospect of achieving functional heart repair/regeneration. Areas covered: Allogeneic CSC therapy through its paracrine stimulation of the endogenous resident reparative/regenerative process produces functional meaningful myocardial regeneration in pre-clinical porcine myocardial infarction models and is currently tested in the first-in-man human trial. The in vivo test of somatic reprogramming and cardioregenerative non coding RNAs revived the interest in gene therapy for myocardial regeneration. The latter, together with the advent of genome editing, has prompted most recent efforts to produce genetically-modified allogeneic CSCs that secrete cardioregenerative factors to optimize effective myocardial repair. Expert opinion: The current war against heart failure epidemics in western countries seeks to find effective treatments to set back the failing hearts prolonging human lifespan. Off-the-shelf allogeneic-genetically-modified CSCs producing regenerative agents are a novel and evolving therapy set to be affordable, safe, effective and available at all times for myocardial regeneration to either prevent or treat heart failure. PMID- 29347846 TI - Poly (butylene adipate-co-butylene terephthalate) nanoparticles prepared by electrospraying technique for docetaxel delivery in ovarian cancer induced mice. AB - OBJECTIVE: Ovarian cancer is still a major cause of morbidity and mortality. Docetaxel (DTX) is one of the most notable cytotoxic agents for treatment of ovarian cancer. However, its side effects proposed considerable problems to the patients. SIGNIFICANCE: Polymeric nanoparticles (NPs) of poly (butylene adipate co-butylene terephthalate) (Ecoflex(r)), a biodegradable and biocompatible polymer, were prepared for the first time by the upgradeable electrospraying technique. METHODS: The formulation and procedure variables were optimized using Design Expert software, and effect of each variable on particle size, particle size distribution, drug entrapment efficiency, and drug release of the NPs were evaluated. Then, in vitro cytotoxicity, cellular uptake, X-ray diffraction pattern, and morphological characteristics of the optimized NPs were evaluated. Finally, in vivo efficacy of the DTX-loaded NPs was evaluated on tumor bearing nude mice. RESULTS: The optimum condition for production of NPs included voltage of 20 kV, 12 cm distance between electrodes, feeding rate of 1 mL/hr, polymer to drug ratio of 3:1, 1 w/v% of Pluronic-F127 and dichloromethane to dimethyl formamide ratio of 2.7:1. Fluorescent microscopy test showed the NPs were successfully up-taken by ovarian cancer cells. In vitro cytotoxicity test confirmed no cytotoxic effect caused by blank NPs, while cell viability of the DTX loaded NPs was significantly lower than the free DTX (p < .05). The NPs significantly enhanced anti-tumor efficacy of the drug in nude mice (p < .05). CONCLUSION: The Ecoflex(r) NPs could potentially provide a suitable alternative for currently available formulations of DTX. PMID- 29347848 TI - Role of topical oxytocin in improving vaginal atrophy in postmenopausal women: a randomized, controlled trial. AB - OBJECTIVE AND DESIGN: Prospective randomized controlled trial to test the effectiveness of topical oxytocin gel to improve vaginal atrophy in postmenopausal women. PATIENTS AND METHODS: A total of 140 postmenopausal women presenting with vaginal atrophy and who satisfied the inclusion and exclusion criteria were randomized into two groups each of 70 patients; they received intravaginal oxytocin gel or placebo gel for 30 days. Serum estrogen level, visual, colposcopic and histological vaginal examination were performed before and after treatment. RESULTS: Forty-seven out of 70 women in the oxytocin gel group improved after treatment and none in the placebo group (p = 0.001). Forty five participants in the oxytocin group and seven in the placebo group reported relief of dyspareunia (p = 0.001). Thirty-four participants in the oxytocin group and seven in the placebo group reported relief of soreness (p = 0.001). There was no significant difference between the circulating levels of estradiol in both groups before and after treatment (p = 0.4 and 0.6 for the oxytocin group and the placebo group, respectively). CONCLUSION: Oxytocin gel is useful in the restoration of the vaginal epithelium in cases of postmenopausal atrophic vaginitis. Further studies with a longer follow-up period are required to test the long-term effects of oxytocin as a treatment for vaginal atrophy. PMID- 29347849 TI - Joint pain within adult middle-aged women, attending a community clinic in a peri urban area in South Africa: a cross-sectional survey. AB - BACKGROUND: This study aimed to investigate the prevalence of joint pain in women between the ages of 40 and 64 years who attended a community clinic in the Free State to provide micro-information for health care planners. METHODS: A sample of convenience was utilized in the cross-sectional survey. Health care workers were recruited to conduct the survey. Outcome measures included the Community-Oriented Programme-For-The-Control-Of-Rheumatic-Disease questionnaire and European Quality of Life - 5 Dimensions health related quality of life measure. Descriptive statistics were calculated for categorical data and non-parametric tests for ordinal data. Quality Adjusted Life Years lost were based on the preference weights generated by the European Quality of Life - 5 Dimensions. RESULTS: One thousand three hundred seventy-six participants were enrolled. The prevalence of joint pain experienced in either the short or the long term was 62.1% (CI 59.5 64.6%). The total number of Quality Adjusted Life Years lost in this sample was 41.4, that is a rate of 3008.7 (CI 2740-3310) per 100,000. CONCLUSION: Epidemiological transition seems to be rapidly taking place in South Africa and the prevalence of joint pain is considerable. Primary health care systems should develop a cost-effective approach to manage and identify joint pain and improve the health-related quality of life of those living with this. Implications for Rehabilitation Prevalence of joint pain is considerable. Consume large amounts of health and social resources. A protocol for routine screening should be developed in community clinics. Cost-effective approach to manage joint pain should be identified to improve healthrelated quality of life of individuals living with joint pain. PMID- 29347850 TI - Feasibility of electrospray deposition for rapid screening of the cocrystal formation and single step, continuous production of pharmaceutical nanococrystals. AB - OBJECTIVES: This study employed electrospray deposition (ESD) for simultaneous synthesis and particle engineering of cocrystals. SIGNIFICANCE: Exploring new methods for the efficient production of cocrystals with desired particle properties is an essential demand. METHODS: The possibility of cocrystal formation by ESD was examined for indomethacin-saccharin, indomethacin nicotinamide, naproxen-nicotinamide, and naproxen-iso-nicotinamide cocrystals. Solutions of the drug and coformer at stoichiometric ratios were sprayed to a high electric field which caused rapid evaporation of the solvent and the formation of fine particles. The phase purity, size, and morphology of products were compared with reference cocrystals. Experiments were performed to evaluate the effects of stoichiometric ratio, concentration and solvent type on the cocrystal formation. Physical stability and dissolution properties of the electrosprayed cocrystals were also compared with reference cocrystals. RESULTS: ESD was found to be an efficient and rapid method to produce cocrystals for all studied systems other than indomethacin-nicotinamide. Pure cocrystals only formed at a specific drug:coformer ratio. The solvent type has a weak effect on the cocrystal formation and morphology. Electrosprayed cocrystals exhibited nano to micrometer sizes with distinct morphologies with comparable physical stability with reference cocrystals. Nanococrystals of indomethacin-saccharin with a mean size of 219 nm displayed a threefold higher dissolution rate than solvent evaporated cocrystal. CONCLUSION: ESD successfully was utilized to produce pure cocrystals of poorly soluble drugs with different morphologies and sizes ranging from nano to micrometer sizes in one step. This study highlighted the usefulness of ESD for simultaneous preparation and particle engineering of pharmaceutical cocrystals. PMID- 29347851 TI - The era of biofunctional biomaterials in orthopedics: what does the future hold? AB - INTRODUCTION: Titanium-based materials do not fulfill all of the requirements of orthopedic implants due to a mismatch in mechanical properties with bone which are prone to change during the course of bone growth. Biofunctional biomaterials are a new class of materials that show bioactivity and adaptability at any stage of bone growth. Areas covered: Different biofunctional biomaterials have evolved over time that can enhance calcium phosphate (CaP) precipitation, stimulate osteogenic differentiation, and can control osteoblast gene expression. These materials include metals or metal alloys, ceramics, polymers and biocomposites. Similarly, naturally-inspired nanomaterials and nanometer surface featured modified materials can enhance bone growth if created to match bone's unique micro to nano hierarchical structure. Nanoscale manipulation of existing biomaterials can incorporate antimicrobial properties which is desirable to prevent infection and failure of orthopedic devices. Expert commentary: Recent research trends in biofunctional biomaterials have focused to, first, understand the bone growth mechanism and, then, mimic natural bone architecture using biomaterials. Therefore, an enhanced understanding of material properties and tissue engineering principles will lead the way forward designing biofunctional biomaterials. In the future, the role of biofunctional biomaterials and orthopedic sensors will be more pronounced in terms of musculoskeletal disease prevention, diagnosis, and treatment. PMID- 29347852 TI - The patient categorisation tool: psychometric evaluation of a tool to measure complexity of needs for rehabilitation in a large multicentre dataset from the United Kingdom. AB - PURPOSE: This first psychometric evaluation of the Patient Categorisation Tool examined its properties as an instrument to measure complexity of needs in a mixed population of patients presenting for specialist neurorehabilitation. MATERIALS/METHODS: Analysis of a large multicentre cohort of patients (n = 5396) from the national clinical dataset representing 63 specialist rehabilitation services across England. Structural validity was examined using exploratory and confirmatory factor analysis. Concurrent and criterion-validity were tested through a priori hypothesized relationships with other validated measures of resource requirements and dependency. RESULTS: All but two items loaded strongly onto a single principal component with Cronbach's alpha 0.88. A total score of >=30 identified patients with complex (category A) needs with sensitivity 76% and specificity 75%. However, confirmatory factor analysis provided a better fit when the scale was split into two subscales - a 'Cognitive/psychosocial' and a 'Physical' sub-scale (alpha 0.83 and 0.84, respectively). Moderate convergent and discriminant correlations were consistent with hypothesized relationships. CONCLUSIONS: The findings provide some overall support for the Patient Categorisation Tool as a unidimensional tool for measuring complexity of needs for neurorehabilitation, but the subscales may be more suitable for certain groups of patients. Further analysis is now required to evaluate its performance in different conditions. Implications for Rehabilitation A psychometrically robust tool for measuring the complexity of rehabilitation needs has potential value, both at an individual level for treatment planning, and at a population level for planning and commissioning rehabilitation services. The Patient Categorisation Tool now forms part of the United Kingdom national clinical dataset mandated by the National Health Service in England This psychometric analysis from a large national multicentre cohort representing a diverse range of conditions, provides evidence for its validity as a means to identity patients with complex rehabilitation needs requiring specialist rehabilitation. PMID- 29347853 TI - SAR thresholds for electromagnetic exposure using functional thermal dose limits. AB - BACKGROUND AND PURPOSE: To protect against any potential adverse effects to human health from localised exposure to radio frequency (100 kHz-3 GHz) electromagnetic fields (RF EMF), international health organisations have defined basic restrictions on specific absorption rate (SAR) in tissues. These exposure restrictions incorporate safety factors which are generally conservative so that exposures that exceed the basic restrictions are not necessarily harmful. The magnitude of safety margin for various exposure scenarios is unknown. This shortcoming becomes more critical for medical applications where the safety guidelines are required to be relaxed. The purpose of this study was to quantify the magnitude of the safety factor included in the current basic restrictions for various exposure scenarios under localised exposure to RF EMF. MATERIALS AND METHODS: For each exposure scenario, we used the lowest thermal dose (TD) required to induce acute local tissue damage reported in literature, calculated the corresponding TD-functional SAR limits (SARTDFL) and related these limits to the existing basic restrictions, thereby estimating the respective safety factor. RESULTS: The margin of safety factor in the current basic restrictions on 10 g peak spatial average SAR (psSAR10g) for muscle is large and can reach up to 31.2. CONCLUSIONS: Our analysis provides clear instructions for calculation of SARTDFL and consequently quantification of the incorporated safety factor in the current basic restrictions. This research can form the basis for further discussion on establishing the guidelines dedicated to a specific exposure scenario, i.e. exposure-specific SAR limits, rather than the current generic guidelines. PMID- 29347854 TI - A systematic review of health economic models and utility estimation methods in schizophrenia. AB - INTRODUCTION: There is a growing need for economic evaluations describing the disease course, as well as the costs and clinical outcomes related to the treatment of schizophrenia. Areas covered: A systematic review on studies describing health economic models in schizophrenia and a targeted literature review on utility mapping algorithms in schizophrenia were carried out. Models found in the review were collated and assessed in detail according to their type and various other attributes. Fifty-nine studies were included in the review. Modeling techniques varied from simple decision trees to complex simulation models. The models used various clinical endpoints as value drivers, 47% of the models used quality-adjusted life years, and eight percent used disability adjusted life years to measure benefits, while others applied various clinical outcomes. Most models considered patients switching between therapies, and therapeutic adherence, compliance or persistence. The targeted literature review identified four main approaches to map PANSS scores to utility values. Expert commentary: Health economic models developed for schizophrenia showed great variability, with simulation models becoming more frequently used in the last decade. Using PANSS scores as the basis of utility estimations is justifiable. PMID- 29347855 TI - Low-power bipolar radiofrequency ablation and vertebral augmentation for the palliative treatment of spinal malignancies. AB - AIM: To investigate the analgesic properties and the safety of low power bipolar radiofrequency ablation (RFA) performed with internally cooled electrodes and vertebral augmentation for the treatment of painful spinal malignancies. MATERIALS AND METHODS: Consent was waived for retrospective study participation. Review of electronic records identified 11 consecutive patients (6 females; 5 males; mean age 61.3 +/- 11.6 years) with one-index painful spinal tumour, who were treated between June 2016 and October 2017 with bipolar RFA and vertebral augmentation. Patients were treated if they presented with focal pain (>=4/10 on a 0-10 visual analogic scale in the 24-h period) corresponding to a metastatic vertebral level on cross sectional imaging. The Wilcoxon test was used to evaluate the significance of the post-operative pain. RESULTS: Lumbar levels were treated in 72.7% cases; metastatic epidural involvement was noted in 81.8% cases; 54.5% patients received associated treatments in addition to RFA, which was coupled to vertebral augmentation in all cases. Two (18.2%) complications were noted. Mean pain score measured at last clinical follow-up available (mean 1.9 +/ 1.4 months) was 3.5 +/- 2 (versus 7.8 +/- 1.1 at baseline; p <0.01). CONCLUSIONS: Low-power bipolar RFA performed with internally cooled electrodes and coupled to vertebral augmentation provides safe and effective early analgesia in patients affected by painful spinal malignancies. PMID- 29347856 TI - Systematic review of injuries in mixed martial arts. AB - OBJECTIVES: To assess injury rates in all mixed martial arts (MMA) studies. METHODS: Six online databases were searched until November 2017 including MEDLINE, EMBASE, CINAHL, Web of Science, PubMed, Google/Google Scholar and conference proceedings. All included studies were entered in Pub Med Single Citation Matcher and all citation chains followed. Abstracts and titles were assessed for relevance, data independently abstracted and risk of bias for all competition studies evaluated independently by two reviewers. RESULTS: There are data for 5,374 male and 108 female MMA fighters. For 2407 males the weighted average injury rate/1000Athletic Encounters (AE) was 246.4 and for one study of 108 females 101.9. One study provided data by professional status: professionals 135.5/1000AE and amateurs 71.0/1000AE. Reasons for stopping matches were knockout/technical knockout 173.9/1000AE for males and 175.9/1000AE for females, submission 228.6/1000AE, and referee's decision 98.2/1000AE. Losers can experience large amounts of trauma especially head trauma as matches terminate. Two studies of competitions provided personally conducted ringside assessments and both pre- and post-match examination results. The other studies reported retrospective assessments of fight records or videos or videos and scorecards. There are no studies of training injuries of professionals or injuries of amateurs or long-term follow-up of musculoskeletal injuries or neurological damage. Studies are limited to the US and Canada. There are no systematic reviews of newspaper or media accounts of fights to assess rates and numbers of injuries or mortality. The few published surveys and case reports markedly understate the worldwide situation. CONCLUSIONS: There are high rates of trauma in MMA. The authorities who regulate MMA and referees and physicians who monitor MMA fighters have an inadequate database to guide their work. Researchers need to adopt the same set of complete definitions of all possible injuries and measure the high and early rate of neurological damage. PMID- 29347857 TI - Mulberry leaves and their potential effects against cardiometabolic risks: a review of chemical compositions, biological properties and clinical efficacy. AB - CONTEXT: Cardiometabolic risks are regarded as the crucial factors associated with type 2 diabetes (T2DM) and cardiovascular diseases (CVD). Regarding an increased attention to medicinal plants in the current healthcare system, the effects of mulberry (Morus spp., Moraceae) leaves on cardiometabolic risks have been consecutively considered in scientific research. OBJECTIVE: The present review compiles and summarizes the chemical compositions, biological properties and clinical efficacy of mulberry leaves that are related to the amelioration of cardiometabolic risks. METHODS: Published English literature from the PubMed, Science Direct and Google Scholar databases was searched by using 'mulberry leaves' 'Morus spp.', 'hyperglycemia', 'hyperlipidemia', 'obesity', 'hypertension', 'oxidative stress', 'atherosclerosis' and 'cardiovascular diseases' as the keywords. The relevant articles published over the past two decades were identified and reviewed. RESULTS: Mulberry leaves contain numerous chemical constituents. 1-Deoxynojirimycin (DNJ), phenolics and flavonoids are the prominent functional compounds. Preclinical and clinical studies showed that mulberry leaves possessed various beneficial effects against cardiometabolic risks, including antihyperglycaemic, antihyperlipidaemic, antiobesity, antihypertensive, antioxidative, anti-inflammatory, anti-atherosclerotic and cardioprotective effects. CONCLUSIONS: Mulberry leaves could be a promising therapeutic option for modulating cardiometabolic risks. However, further investigations should be performed to substantiate the potential of mulberry leaves in practical uses. PMID- 29347858 TI - Where are we with injectables against HIV infection and what are the remaining challenges? AB - INTRODUCTION: Drug adherence has been a recurring issue in the field of HIV treatment, and low treatment adherence is typically associated with emergence of drug resistance, treatment failure and increased risks of transmission. Injectable antiretroviral drugs offer a unique opportunity to counter this issue for the treatment of HIV-positive individuals. In addition, injectables offer a remarkable opportunity to reduce new HIV infections, if applied in the context of both treatment-as-prevention and pre-exposure prophylaxis. Areas covered: Researchers and drug companies are developing long-acting agents that possess long biological half-life and excellent pharmacokinetic profiles that can be administered intramuscularly, intravenously, or subcutaneously. These long-acting injectables are categorized as drugs that target different steps of HIV replication cycle or monoclonal antibodies that target HIV entry. Expert commentary: Injectables against HIV have the potential to revolutionize the fight against HIV by facilitating both treatment and prevention in a wide variety of clinical settings. Several challenges remain including the identification of potent two-drug combinations of drugs that can be formulated as injectables, and thorough drug-drug interaction studies with a broad variety of medications. Finally we believe that the healthcare benefits of injectables will require regulatory changes to allow self-injection before they reach their full potential. PMID- 29347859 TI - PACTRIMS 2017. PMID- 29347860 TI - Alteration of auditory function in type 2 diabetic and pre-diabetic patients. AB - BACKGROUND: The association between type 2 diabetes mellitus (T2DM) and hearing loss has not been fully investigated and there is little information on the effects of pre-diabetes on alterations in auditory function in Chinese subjects. METHODS: The study recruited 51 patients with T2DM, 55 patients with pre-diabetes and 43 control subjects. Auditory function was assessed by pure tone audiometry (PTA) tests and distortion product of otoacoustic emissions (DPOAEs). Tinnitus symptoms were recorded using a medical history questionnaire. RESULTS: A significantly larger number of patients with T2DM (45.1%) were affected by hearing loss, compared to pre-diabetes patients (23.6%; p = .04) and control subjects (25.6%; p = .02), as assessed by PTA. There was no significant difference in PTA between the number of pre-diabetes patients and control subjects. In contrast, mean DPOAEs amplitudes of the pre-diabetes patients were significantly lower than of the control subjects, at all frequencies investigated, except 0.75 kHz. A significantly greater number of pre-diabetes patients reported tinnitus symptoms. CONCLUSIONS: Diabetes is associated with bilateral sensorineural hearing loss, especially at high frequencies. While pre diabetes is not necessarily associated with significant hearing loss, there may be cochlear malfunction, as indicated by DPOAEs. Thus, patients with pre-diabetes who have tinnitus may benefit from DPOAEs and PTA tests. PMID- 29347861 TI - Positive emotional attention bias in young children with symptoms of ADHD. AB - Children with attention-deficit/hyperactivity disorder (ADHD) often experience emotional dysregulation. Dysregulation can arise from heightened attention to emotional stimuli. Emotional attention biases are associated with a number of adverse socioemotional outcomes including reward sensitivity and externalizing behaviors. As reward sensitivity and externalizing behaviors are common in children with ADHD, the aim of the current study was to determine whether emotional attention biases are evident in young children with clinically significant ADHD symptoms. To test this, children with (n = 18) and without (n = 15) symptoms of ADHD were tested on a Dot Probe task. Provided recent evidence that emotional attention biases are attenuated by sleep, the task was performed before and after overnight sleep. Children with ADHD symptoms displayed positive, but not negative, attention biases at both time points, whereas typically developing children did not preferentially attend toward or away from positive or negative stimuli. Sleep did not alter attention biases in either group. Collectively, these results indicate that children with ADHD symptoms have stable, positive attention biases. PMID- 29347862 TI - Survey of the awareness of adult rheumatologists regarding transitional care for patients with juvenile idiopathic arthritis in Japan. AB - OBJECTIVES: To understand the current status of adult rheumatology care for patients who had previously had juvenile idiopathic arthritis (JIA) (excluding systemic JIA), and to identify issues interfering with the transition from pediatric to adult care in Japan. METHODS: Questionnaire-based survey among 30 adult rheumatologists. RESULTS: Eighty-seven percent of adult rheumatologists responded that they had provided medical care to adults who had had JIA; 44% of them had felt hesitation or anxiety when providing such care. The reasons for this included lack of independence of the patients, lack of knowledge and experience among adult rheumatologists, and lack of preparation for accepting such patients. Many adult rheumatologists believed that the timing of transition from pediatric to adult rheumatology care must be considered based on therapeutic regimens or clinical conditions/disease states, not solely chronological age. A majority of adult rheumatologists showed great interest in transitional care for JIA patients and desired to communicate better with pediatric rheumatologists. CONCLUSION: Transitional care for JIA patients is not sufficiently developed in Japan. Education and advocate campaign of transitional care is required for adult rheumatologists as well as patients and their parents. PMID- 29347864 TI - Dense Breast Notification Laws: Impact on Downstream Imaging After Screening Mammography. AB - Dense breast tissue is a common finding that decreases the sensitivity of mammography in detecting cancer. Many states have recently enacted dense breast notification (DBN) laws to provide patients with information to help them make better-informed decisions about their health. To test whether DBN legislation affected the probability of screening mammography follow-up by ultrasound and magnetic resonance imaging (MRI), we examined the proportion of times screening mammography was followed by ultrasound or MRI for a series of months pre- and post-legislation. The subjects were women aged 40 to 64 years, covered by private health insurance, undergoing screening mammography from 2007 to 2014. Except for Hawaii, Maryland, and New York, DBN legislation significantly increased the probability of ultrasound follow-up in all states that implemented DBN legislation before December 2014. It also increased the probability of MRI follow up in California, North Carolina, Pennsylvania, and Texas. The financial and access consequences merit further study. PMID- 29347863 TI - An Intervention to Improve Physical Function and Caregiver Perceptions in Family Caregivers of Persons With Heart Failure. AB - OBJECTIVE: This randomized controlled trial was conducted to determine whether a 12-week home-based aerobic and resistance exercise program would improve physical function and caregiving perceptions among family caregivers (FCGs) of persons with heart failure. METHOD: Overall, 127 FCGs were randomized to one of three groups: usual care attention control (UCAC), psychoeducation only (PE), and psychoeducation plus exercise (PE + EX). Physical function measures (6-min walk test, handgrip, and upper and lower strength) and caregiving perceptions (Bakas Caregiving Outcomes Scale) were obtained at baseline and at 6 months. RESULTS: FCGs in the PE + EX showed significant improvement in 6-min walk distance ( p = .012), handgrip, and lower extremity strength compared with the PE and UCAC groups. The combined group had the greatest improvement in caregiver perceptions ( p < .001). CONCLUSION: FCGs in the PE + EX group improved the most in physical function and caregiver perception outcomes. Directions for future research are provided. PMID- 29347865 TI - The Influence of Multimorbidity on Leading Causes of Death in Older Adults With Cognitive Impairment. AB - OBJECTIVE: The aim of this study is to evaluate the relationship of leading causes of death with gradients of cognitive impairment and multimorbidity. METHOD: This is a population-based study using data from the linked 1992-2010 Health and Retirement Study and National Death Index ( n = 9,691). Multimorbidity is defined as a combination of chronic conditions, functional limitations, and geriatric syndromes. Regression trees and Random Forest identified which combinations of multimorbidity associated with causes of death. RESULTS: Multimorbidity is common in the study population. Heart disease is the leading cause in all groups, but with a larger percentage of deaths in the mild and moderate/severe cognitively impaired groups than among the noncognitively impaired. The different "paths" down the regression trees show that the distribution of causes of death changes with different combinations of multimorbidity. DISCUSSION: Understanding the considerable heterogeneity in chronic conditions, functional limitations, geriatric syndromes, and causes of death among people with cognitive impairment can target care management and resource allocation. PMID- 29347866 TI - Effects of cereal bar containing polydextrose on subjective feelings of appetite and energy intake in overweight adults over 15 d. AB - The effects of 15 d polydextrose (16.7 g) consumption on energy intake (EI) and appetite feelings were investigated. Overweight adults consumed a polydextrose bar or a control-bar matched in energy content as a midmorning snack for 15 consecutive days in a single-blind, randomised, crossover design. The two 15-d intervention periods were separated by a 15-d washout period. On the day 1 and the day 15 of each intervention period, energy intake (primary outcome) and appetite feelings (secondary outcome) were assessed. There were not significant main effects of the day, type of bar, or their interaction for EI (at lunchtime test meal, at rest of the day, or at total daily) or subjective feelings (hunger, desire to eat, fullness, and prospective food consumption) during the satiation and satiety periods. The results showed the consumption of polydextrose-bar during 15 d did not significantly affect energy intake and subjective feelings of appetite in overweight adults. PMID- 29347867 TI - The Mediterranean Diet: its definition and evaluation of a priori dietary indexes in primary cardiovascular prevention. AB - We have analysed the definition of Mediterranean Diet in 28 studies included in six meta-analyses evaluating the relation between the Mediterranean Diet and primary prevention of cardiovascular disease. Some typical food of this dietary pattern like whole cereals, olive oil and red wine were taken into account only in a few a priori indexes, and the dietary pattern defined as Mediterranean showed many differences among the studies and compared to traditional Mediterranean Diet of the early 1960s. Altogether, the analysed studies show a protective effect of the Mediterranean Diet against cardiovascular disease but present different effects against specific conditions as cerebrovascular disease and coronary heart disease. These different effects might depend on the definition of Mediterranean Diet and the indexes of the adhesion to the same one used. To compare the effects of the Mediterranean Diet against cardiovascular disease, coronary heart disease and stroke a univocal model of Mediterranean Diet should be established as a reference, and it might be represented by the Modern Mediterranean Diet Pyramid. The a priori index to evaluate the adhesion to Mediterranean Diet might be the Mediterranean-Style Dietary Pattern Score that has some advantages in comparison to the others a priori indexes. PMID- 29347868 TI - Differential White Matter Regional Alterations in Motor Subtypes of Early Drug Naive Parkinson's Disease Patients. AB - BACKGROUND: Parkinson's disease (PD) can be classified into tremor dominant (TD) and postural instability and gait difficulty (PIGD) subtypes with TD considered as the benign subtype. The neural alterations of the 2 subtypes in the early stages before administration of medications remain elusive. OBJECTIVE: This study assessed the subtype-related white matter (WM) microstructural features in newly diagnosed and drug-naive PD patients from the Parkinson's Progression Markers Initiative (PPMI). METHODS: Sixty-five early PDs with stable subtypes (52 TD and 13 PIGD patients) and 61 controls underwent diffusion tensor imaging (DTI) scanning and clinical assessment. Tract-based special statistics (TBSS), graph theoretical and network-based analyses were used to compare WM regional and network features between groups. RESULTS: No differences in disease stages and duration were found between the 2 patient groups. TD patients showed increased fractional anisotropy (FA), but decreased radial and axial diffusivities (RD and AD) in several projection, association, and commissural tracts, compared with PIGD patients and controls. Motor severity had mild-to-moderate correlations with FA and RD of the corpus callosum (genu) in TD, but strong correlations with FA and RD of multiple association tracts in PIGD. Conversely, no significant network changes were noted. CONCLUSIONS: TD patients showed regionally increased FA but decreased diffusivities, implying neural reorganization to compensate PD pathology in early stages. PIGD patients, despite having similar disease stages and duration, exhibited more WM degradation. These results demonstrate differential WM regional features between the 2 subtypes in early PD and support the notion of TD being a benign subtype. PMID- 29347869 TI - Social Support Networks and Quality of Life of Rural Men in a Context of Marriage Squeeze in China. AB - A significant number of rural Chinese men are facing difficulties in finding a spouse and may fail to ever marry due to a relative scarcity of women in the adult population. Research has indicated that marriage squeeze is a stressful event which is harmful to men's quality of life, and also weakens their social support networks. Using data collected in rural Chaohu city, Anhui, China, this study explores the effects of social support networks on quality of life of rural men who experience a marriage squeeze. The results indicate that the size of social contact networks is directly and positively associated with the quality of life of marriage-squeezed men, and moderate the negative effect of age on quality of life. Having no or limited instrumental support network and social contact network are double-edged swords, which have direct negative associations with the quality of life of marriage-squeezed men, and have moderate effects on the relationship between marriage squeeze and quality of life. PMID- 29347870 TI - Incorporating living from the heart into medical education. AB - Medical training poses many challenges to trainees' wellbeing. To address the impact of learning in a high turnover, high volume, acute care setting in the General Internal Medicine Clinical Teaching Unit, the Chief Medical Resident, in this personal account, shares how she and the Spiritual Care Practitioner united to form an innovative partnership. The introduction of the skills of spiritual care practitioners, generally referred to patients and families, to support medical students and residents resulted in the co-development and co implementation of a unique, reflective, one-hour session. The objective was to create a protected space and time to discuss the impact of training and clinical experiences on medical trainees' wellbeing, in the context of "living from the heart". PMID- 29347871 TI - Commentary on "Regulatory Support Improves Subsequent IRB/REC Approval Rates in Studies Initially Deemed Not Ready for Review: A CTSA Institution's Experience". AB - In response to researcher concerns a number of initiatives have been developed to support individual researchers seeking ethics review and approval. In this issue, Sonne et al. (2017) outline an example of an intervention to support researchers, which they refer to as a Regulatory Knowledge Support (RKS) service. While the study points to potential benefits, other studies have not had the desired impact on key performance measures. There is a need to develop a community of practice and expand the burgeoning evidence base regarding what interventions work, for whom, and under what circumstances. Advancing the research agenda requires: the development of theoretical models for intervention design and evaluation; developing consensus on key data for collection and measures of effectiveness; conducting evaluations using the strongest possible study designs, and; publishing the findings of evaluations. PMID- 29347873 TI - Students with an autonomous role in hospital care - patients perceptions. AB - BACKGROUND: There have been calls to enhance clinical education by strengthening supported active participation (SAP) of medical students in patient care. This study examines perceived quality of care when final-year medical students are integrated in hospital ward teams with an autonomous relationship toward their patients. METHODS: We established three clinical education wards (CEWs) where final-year medical students were acting as "physician under supervision". A questionnaire-based mixed-method study of discharged patients was completed in 2009-15 using the Picker Inpatient Questionnaire complemented by specific questions on the impact of SAP. Results were compared with matched pairs of the same clinical specialty from the same hospital (CG1) and from nationwide hospitals (CG2). Patients free-text feedback about their hospital stay was qualitatively evaluated. RESULTS: Of 1136 patients surveyed, 528 (46.2%) returned the questionnaire. The CEWs were highly recommended, with good overall quality of care and patient-physician/student-interaction, all being significantly (p < 0.001) higher for the CEW group while experienced medical treatment success was similar. Patient-centeredness of students was appreciated by patients as a support to a deeper understanding of their condition and treatment. CONCLUSION: Our study indicates that SAP of final-year medical students is appreciated by patients with high overall quality of care and patient-centeredness. PMID- 29347875 TI - Universal informative CpG sites for inferring tumor purity from DNA methylation microarray data. AB - Tumor purity is an intrinsic property of tumor samples and potentially has severe impact on many types of data analysis. We have previously developed a statistical method, InfiniumPurify, which could infer purity of a tumor sample given its tumor type (available in TCGA) or a set of informative CpG (iDMC) sites. However, in many clinical practices, researchers may focus on a specific type of tumor samples that is not included in TCGA, and samples which are too few to identify reliable iDMCs. This greatly restricts the application of InfiniumPurify in cancer research. In this paper, we proposed an updated version of InfiniumPurify (termed as uiInfiniumPurify) through identifying a universal set of iDMCs (uiDMCs) and redesigning the algorithm to determine hyper- and hypo-methylation status of each uiDMC. Through the application, we estimated tumor purities of 8830 tumor samples from TCGA. Result shows that our estimates are highly consistent with those by other available methods. Consequently, the updated uiInfiniumPurify, can be applied to a single sample (or a few samples) of interest whose tumor type is not included in TCGA. This characteristic will greatly broaden the application of uiInfiniumPurify in cancer research. PMID- 29347877 TI - Part-set cueing impairment & facilitation in semantic memory. AB - The present study explored the influence of part-set cues in semantic memory using tests of "free" recall, reconstruction of order, and serial recall. Nine distinct categories of information were used (e.g., Zodiac signs, Harry Potter books, Star Wars films, planets). The results showed part-set cueing impairment for all three "free" recall sets, whereas part-set cueing facilitation was evident for five of the six ordered sets. Generally, the present results parallel those often observed across episodic tasks, which could indicate that similar mechanisms contribute to part-set cueing effects in both episodic and semantic memory. A novel anchoring explanation of part-set cueing facilitation in order and spatial tasks is provided. PMID- 29347876 TI - Risk of overhydration and low lean tissue index as measured using a body composition monitor in patients on hemodialysis: a systemic review and meta analysis. AB - Overhydration and sarcopenia, related to an individual's nutritional status, have been associated with increased cardiovascular mortality and poor prognosis in patients on hemodialysis. The purpose of this study was to investigate the prediction of overhydration and sarcopenia on mortality in patients on hemodialysis using a body composition monitor. We conducted a systematic review and meta-analysis using a random-effects model. We searched the Cochrane Central Register, OVID MEDLINE, EMBASE and PubMed databases for all studies published prior to December 9, 2016 and reviewed the reference lists of relevant reviews, registered trials and relevant conference proceedings. The overhydration group (fluid excess, >15% vs. the normohydration group) and the low lean tissue index group ( <10%) were compared with a reference group. Six trials, consisting of 29,469 patients, were included in the pooled analysis. The pooled hazard ratio for overall survival of the overhydration group, compared with the reference normohydration group was 1.798 (95% confidence interval [CI]: 1.53-2.804, p = .001). The hazard ratio for mortality in the low lean tissue index group was 1.533 (95% CI, 1.411-1.644; p = .001) in the random-effects model. The results from the most recent study showed the greatest heterogeneity in the sensitivity analysis. Low lean tissue index and overhydration, measured using a body composition monitor, were associated with a high mortality rate in patients on hemodialysis. PMID- 29347878 TI - The effect of aging on the (mis)perception of intentionality - an ERP study. AB - Despite the accumulated knowledge on moral decision-making in the early stages of development, empirical evidence is still limited in the old-aged adults. The current study contributes to unveil the neural correlates of judgments of moral transgressions as a function of aging, by examining the temporal dynamics of neural activation elicited by intentional and accidental harmful actions in three groups of healthy participants: young adults (18-35), adults (40-55), and older adults (60-75). Older adults were slower and less accurate in rating intentionality, compared to the younger groups. In ERP analysis, the older group showed increased P2 amplitude, which was predicted by poorer performance on neuropsychological tests. Reduced amplitudes were found on critical ERP components to moral cognition (N2 and LPP), namely while processing intentional harmful scenarios. Older adults seem to allocate more attentional resources (P2) to the task, probably to compensate the age-related decline in executive functioning, while younger groups show a pronounced negativity while detecting harm (N2) and increased neural activation to encode the intentions behind the acts (LPP). PMID- 29347879 TI - The Listener Sets the Tone: High-Quality Listening Increases Attitude Clarity and Behavior-Intention Consequences. AB - We examined how merely sharing attitudes with a good listener shapes speakers' attitudes. We predicted that high-quality (i.e., empathic, attentive, and nonjudgmental) listening reduces speakers' social anxiety and leads them to delve deeper into their attitude-relevant knowledge (greater self-awareness). This, subsequently, differentially affects two components of speaker's attitude certainty by increasing attitude clarity, but not attitude correctness. In addition, we predicted that this increased clarity is followed by increased attitude- expression intentions, but not attitude- persuasion intentions. We obtained consistent support for our hypotheses across five experiments (including one preregistered study), manipulating listening behavior in a variety of ways. This is the first evidence that an interpersonal variable, unrelated to the attitude itself, can affect attitude clarity and its consequences. PMID- 29347880 TI - Functions of Utopia: How Utopian Thinking Motivates Societal Engagement. AB - Images of ideal societies, utopias, are all around us; yet, little is known of how utopian visions affect ordinary people's engagement with their societies. As goals for society, utopias may elicit processes of collective self-regulation, in which citizens are critical of, or take action to change, the societies they live in. In three studies, we investigated the psychological function of utopian thinking. In Study 1, measured utopianism was correlated with the activation of three utopian functions: change, critique, and compensation. In Study 2, primed utopian thinking consistently enhanced change and criticism intentions. Study 3 also provided evidence that mental contrasting-first imagining a utopian vision and then mentally contrasting the current society to this vision-underlies the facilitative effect of utopian thinking on societal engagement. PMID- 29347881 TI - Being an agent of change: a student's view of the UK's first yearlong Longitudinal Integrated Clerkship (LIC). PMID- 29347882 TI - Third Shade of Simulation. PMID- 29347883 TI - Pulmonary Laser Metastasectomy by 1318-nm Neodymium-Doped Yttrium-Aluminum Garnet Laser: A Retrospective Study About Laser Metastasectomy of the Lung. AB - BACKGROUND: The lungs are among the first organ affected by remote metastases from many primary tumors. The surgical resection of isolated pulmonary metastases represents an important and effective element of therapy. This is a retrospective study about our entire experience with pulmonary resection for metastatic cancer using 1318-nm neodymium-doped yttrium-aluminum garnet laser. METHOD: In this single-institution study, we retrospectively analyzed a group of 209 patients previously treated for primary malignant solid tumors. We excluded 103 patients. The number and location of lesions in the lungs was determined using chest computed tomography and positron emission tomography-computed tomography. Disseminated malignancy was excluded. All pulmonary laser resections are performed via an anteroaxillary muscle-sparing thoracotomy. All lesions were routinely removed by laser with a small (5-10 mm) margin of the healthy lung. Patients received systematic lymph node sampling with intraoperative smear cytology of sampled lymph nodes. RESULTS: Mortality at 2 years from the first surgery is around 20% (10% annually). This value increases to 45% in the third year. The estimated median survival for patients who underwent the first surgery is reported to be approximately 42 months. CONCLUSION: Our results show that laser resection of lung metastases can achieve good result, in terms of radical resection and survival, as conventional surgical metastasectomy. The great advantage is the possibility of limiting the damage to the lung. Stapler resection of a high number of metastases would mutilate the lung. PMID- 29347884 TI - Differential mRNA expression of inflammasome genes NLRP1 and NLRP3 in abdominal aneurysmal and occlusive aortic disease. AB - NLRP1 and NLRP3 inflammasomes might differentially mediate the chronic inflammatory response in abdominal aortic aneurysm (AAA) and aortic occlusive disease (AOD). We measure differential relative gene expression of NLRP1 and NLRP3 inflammasomes in aortic tissues from 30 patients undergoing AAA open repair compared to aortic biopsies from 30 patients undergoing surgery to treat AOD. Aortic wall samples from autopsy without aortic disease were used as controls. NLRP3 was overexpressed in patients with AAA and AOD (RQ 1.185 +/- 0.15, and 1.098 +/- 0.05, respectively) compared to donors (RQ 1.001 +/- 0.08) (OR 2.8, 95% CI 1.2-4.3, p < 0.05 for AAA and OR 2.1, 95% CI 1.1-3.8, p < 0.05 for AOD). NLRP1 gene expression was significantly upregulated in patients with AOD (RQ 1.197 +/- 0.09). Meanwhile, NLRP1 was normal expressed in AAA (RQ 1.003 +/- 0.07) as well as in autopsy aortic specimens (RQ 1.005 +/- 0.11). Enhanced NLRP1 expression in AOD was even significant when compared to AAA (OR 2.3, 95% CI 1.2-3.3, p < 0.05) or controls (OR 2.2, 95% CI 1.1-3.1, p < 0.05). According to our findings, NLRP3 could be involved in the common etiology of AAA and AOD, whereas NLRP1 appears to have a specific role in AOD development. PMID- 29347885 TI - Preparation of affordable and multifunctional clay-based ceramic filter matrix for treatment of drinking water. AB - Affordable clay-based ceramic filters with multifunctional properties were prepared using low-cost and active ingredients. The characterization results clearly revealed well crystallinity, structural elucidation, extensive porosity, higher surface area, higher stability, and durability which apparently enhance the treatment efficiency. The filtration rates of ceramic filter were evaluated under gravity and the results obtained were compared with a typical gravity slow sand filter (GSSF). All ceramic filters showed significant filtration rates of about 50-180 m/h, which is comparatively higher than the typical GSSF. Further, purification efficiency of clay-based ceramic filters was evaluated by considering important drinking water parameters and contaminants. A significant removal potential was achieved by the clay-based ceramic filter with 25% and 30% activated carbon along with active agents. Desired drinking water quality parameters were achieved by potential removal of nitrite (98.5%), nitrate (80.5%), total dissolved solids (62%), total hardness (55%), total organic pollutants (89%), and pathogenic microorganisms (100%) using ceramic filters within a short duration. The remarkable purification and disinfection efficiencies were attributed to the extensive porosity (0.202 cm3 g-1), surface area (124.61 m2 g-1), stability, and presence of active nanoparticles such as Cu, TiO2, and Ag within the porous matrix of the ceramic filter. PMID- 29347886 TI - The Role of Place Cues in Voluntary Stream Segregation for Cochlear Implant Users. AB - Sequential stream segregation by cochlear implant (CI) listeners was investigated using a temporal delay detection task composed of a sequence of regularly presented bursts of pulses on a single electrode (B) interleaved with an irregular sequence (A) presented on a different electrode. In half of the trials, a delay was added to the last burst of the regular B sequence, and the listeners were asked to detect this delay. As a jitter was added to the period between consecutive A bursts, time judgments between the A and B sequences provided an unreliable cue to perform the task. Thus, the segregation of the A and B sequences should improve performance. In Experiment 1, the electrode separation and the sequence duration were varied to clarify whether place cues help CI listeners to voluntarily segregate sounds and whether a two-stream percept needs time to build up. Results suggested that place cues can facilitate the segregation of sequential sounds if enough time is provided to build up a two stream percept. In Experiment 2, the duration of the sequence was fixed, and only the electrode separation was varied to estimate the fission boundary. Most listeners were able to segregate the sounds for separations of three or more electrodes, and some listeners could segregate sounds coming from adjacent electrodes. PMID- 29347874 TI - Adjunctive Glucocorticoid Therapy in Patients with Septic Shock. AB - BACKGROUND: Whether hydrocortisone reduces mortality among patients with septic shock is unclear. METHODS: We randomly assigned patients with septic shock who were undergoing mechanical ventilation to receive hydrocortisone (at a dose of 200 mg per day) or placebo for 7 days or until death or discharge from the intensive care unit (ICU), whichever came first. The primary outcome was death from any cause at 90 days. RESULTS: From March 2013 through April 2017, a total of 3800 patients underwent randomization. Status with respect to the primary outcome was ascertained in 3658 patients (1832 of whom had been assigned to the hydrocortisone group and 1826 to the placebo group). At 90 days, 511 patients (27.9%) in the hydrocortisone group and 526 (28.8%) in the placebo group had died (odds ratio, 0.95; 95% confidence interval [CI], 0.82 to 1.10; P=0.50). The effect of the trial regimen was similar in six prespecified subgroups. Patients who had been assigned to receive hydrocortisone had faster resolution of shock than those assigned to the placebo group (median duration, 3 days [interquartile range, 2 to 5] vs. 4 days [interquartile range, 2 to 9]; hazard ratio, 1.32; 95% CI, 1.23 to 1.41; P<0.001). Patients in the hydrocortisone group had a shorter duration of the initial episode of mechanical ventilation than those in the placebo group (median, 6 days [interquartile range, 3 to 18] vs. 7 days [interquartile range, 3 to 24]; hazard ratio, 1.13; 95% CI, 1.05 to 1.22; P<0.001), but taking into account episodes of recurrence of ventilation, there were no significant differences in the number of days alive and free from mechanical ventilation. Fewer patients in the hydrocortisone group than in the placebo group received a blood transfusion (37.0% vs. 41.7%; odds ratio, 0.82; 95% CI, 0.72 to 0.94; P=0.004). There were no significant between-group differences with respect to mortality at 28 days, the rate of recurrence of shock, the number of days alive and out of the ICU, the number of days alive and out of the hospital, the recurrence of mechanical ventilation, the rate of renal replacement therapy, and the incidence of new-onset bacteremia or fungemia. CONCLUSIONS: Among patients with septic shock undergoing mechanical ventilation, a continuous infusion of hydrocortisone did not result in lower 90-day mortality than placebo. (Funded by the National Health and Medical Research Council of Australia and others; ADRENAL ClinicalTrials.gov number, NCT01448109 .). PMID- 29347887 TI - Cryo-Assisted Resection En Bloc, and Cryoablation In Situ, of Primary Breast Cancer Coupled With Intraoperative Ultrasound-Guided Tracer Injection: A Preliminary Clinical Study. AB - The aim of the study was to perform cryosurgery on a primary breast tumor, coupled with simultaneous peritumoral and intratumoral tracer injection of a blue dye, to evaluate lymphatic mapping. We explored the ability of our strategy to prevent tumor cells, but not that of injected tracers, to migrate to the lymphovascular drainage during conventional resection of frozen breast malignancies. Seventeen patients aged 51 (14) years (mean [standard deviation]), presenting primary breast cancer with stage I to IV, were randomly selected and treated in The Rudolfinerhaus Private Clinic in Vienna, Austria, and included in this preliminary clinical study. Under intraoperative ultrasound, 14 patients underwent curative cryo-assisted tumor resection en bloc, coupled with peritumoral tracer injection, which consisted of complete tumor freezing and concomitant peritumor injection with a blue dye, before resection and sentinel lymph node dissection (group A). Group B consists of 3 patients previously refused any standard therapy and had palliative tumor cryoablation in situ combined with intratumoral tracer injection. The intraoperative ultrasound facilitated needle positioning and dye injection timing. In group A, the frozen site extruded the dye that was distributed through the unfrozen tumor, the breast tissue, and the resection cavity for 12 patients. One to 4 lymph nodes were stained for 10 of 14 patients. The resection margin was evaluable. Our intraoperative ultrasound-guided performance revealed the injection and migration of a blue dye during the frozen resection en bloc and cryoablation in situ of primary breast tumors. Sentinel lymph node mapping, pathological determination of the tumor, and resection margins were achievable. The study paves the way for intraoperative cryo-assisted therapeutic strategies for breast cancer. PMID- 29347888 TI - Patient baseline interpersonal problems as moderators of outcome in two psychotherapies for bulimia nervosa. AB - OBJECTIVE: We tested an aptitude by treatment interaction; namely, whether patients' baseline interpersonal problems moderated the comparative efficacy of cognitive-behavioral therapy (CBT) vs. interpersonal psychotherapy (IPT) for bulimia nervosa (BN). METHOD: Data derived from a randomized-controlled trial. Patients reported on their interpersonal problems at baseline; purge frequency at baseline, midtreatment, and posttreatment; and global eating disorder severity at baseline and posttreatment. We estimated the rate of change in purge frequency across therapy, and the likelihood of attaining clinically meaningful improvement (recovery) in global eating disorder severity by posttreatment. We then tested the interpersonal problem by treatment interactions as predictors of both outcomes. RESULTS: Patients with more baseline overly communal/friendly problems showed steeper reduction in likelihood of purging when treated with CBT vs. IPT. Patients with more problems of being under communal/cold had similar reductions in likelihood of purging across both treatments. Patients with more baseline problems of being overly agentic were more likely to recover when treated with IPT vs. CBT, whereas patients with more problems of being under agentic were more likely to recover when treated with CBT vs. IPT. CONCLUSIONS: Interpersonal problems related to communion and agency may inform treatment fit among two empirically supported therapies for BN. PMID- 29347889 TI - Allostery in Orai1 binding to calmodulin revealed from conformational thermodynamics. AB - Here, we study microscopic mechanism of complex formation between Ca2+-bound calmodulin (holoCaM) and Orai1 that regulates Ca2+-dependent inactivation process in eukaryotic cells. We compute conformational thermodynamic changes in holoCaM with respect to complex of Orai1 bound to C-terminal domain of holoCaM using histograms of dihedral angles of the proteins over trajectories from molecular dynamics simulations. Our analysis shows that the N-terminal domain residues L4, T5, Q41, N42, T44 and E67 of holoCaM get destabilized and disordered due to Orai1 binding to C-terminal domain of calmodulin affect the N-terminal domain residues. Among these residues, polar T44, having maximum destabilization and disorder via backbone fluctuations, shows the largest change in solvent exposure. This suggests that N-terminal domain is allosterically regulated via T44 by the binding of Orai1 to the C-terminal domain. PMID- 29347890 TI - Disproportionately higher unintentional injury mortality among Alaska Native people, 2006-2015. AB - We compared rates of unintentional injury (UI) deaths (total and by injury category) among Alaska Native (AN) people to rates of U.S. White (USW) and Alaska White (AKW) populations during 2006-2015. The mortality data for AN and AKW populations were obtained from Alaska Bureau of Vital Statistics and USW mortality data were obtained from WISQARS, the Center for Disease Control and Prevention online injury data program. AN and AKW rates were age-adjusted to the U.S. 2000 Standard Population and rate ratios (RR) were calculated. AN people had higher age-adjusted total UI mortality than the USW (RR = 2.6) and AKW (RR = 2.3) populations. Poisoning was the leading cause of UI death among AN people (35.9 per 100,000), more than twice that of USW (RR = 2.9) and AKW (RR = 2.5). Even greater disparities were found between AN people and USW for: natural environment (RR = 20.7), transport-other land (RR = 12.4), and drowning/submersion (RR = 9.1). Rates of AN UI were markedly higher than rates for either USW or AKW. Identifying all the ways in which alcohol/drugs contribute to UI deaths would aid in prevention efforts. All transportation deaths should be integrated into one fatality rate to provide more consistent comparisons between groups. PMID- 29347891 TI - Changing character: A narrative review of personality change in psychotherapies for personality disorder. AB - OBJECTIVE: Personality disorder (PD) is a negative prognostic indicator for treatment, and absolute improvements in functioning among these patients are often modest. This may be because personality features that give rise to dysfunction in PD are not targeted optimally during most treatments. METHOD: Attachment, mentalization, core beliefs, and personality organization/defense use were identified as personality constructs that have been pursued in treatment studies and that are proposed to underlie PD. RESULTS: All constructs correlate with psychiatric symptoms, PD diagnosis, and functioning. Defense mechanisms and core beliefs further distinguish specific PDs, whereas personality organization separates more versus less severe PDs. Evidence from treatment and naturalistic studies indicate that maturation of defense mechanisms temporally precedes improvements in symptoms and functioning. Changes in attachment and mentalization correlate with some outcomes, but mediation of improvement has not been established. In psychodynamic therapy, transference interpretations may promote amelioration of personality dysfunction. With the exception of attachment, the experimental literature is lacking that could explicate the mechanisms by which these personality constructs maintain psychosocial dysfunction. CONCLUSIONS: Future research should aim to identify changes in these mechanisms that mediate positive outcomes in PD, as well as the specific therapeutic procedures that best promote positive change in PD. PMID- 29347892 TI - Pilot study on the use of data mining to identify cochlear implant candidates. AB - OBJECTIVES: The goal of this pilot study was to determine the clinical utility of data-mining software that screens for cochlear implant (CI) candidacy. METHODS: The Auditory Implant Initiative developed a software module that screens for CI candidates via integration with a software system (Noah 4) that serves as a depository for hearing test data. To identify candidates, patient audiograms from one practice were exported into the screening module. Candidates were tracked to determine if any eventually underwent implantation. RESULTS: After loading 4836 audiograms from the Noah 4 system, the screening module identified 558 potential CI candidates. After reviewing the data for the potential candidates, 117 were targeted and invited to an educational event. Following the event, a total of six candidates were evaluated, and two were implanted. DISCUSSION: This objective approach to identifying candidates has the potential to address the gross underutilization of CIs by removing any bias or lack of knowledge regarding the management of severe to profound sensorineural hearing loss with CIs. CONCLUSION: The screening module was an effective tool for identifying potential CI candidates at one ENT practice. On a larger scale, the screening module has the potential to impact thousands of CI candidates worldwide. PMID- 29347893 TI - ["How Beautiful Must I be?"- Physical Attractiveness and Mental Health in Adolescents]. AB - "How Beautiful Must I be?"- Physical Attractiveness and Mental Health in Adolescents Physical attractiveness is a high priority for young people. The beauty ideals and presentations spread in the media often reinforce self-doubt and self-insecurity. In 730 adolescents (age 13 to 20 years) it was measured, how they experience appearance-related social pressure (FASD), the extent to which physical deficits are perceived (BDDQ), and how these features are related to mental symptoms (SDQ). The results demonstrate that young people are very concerned about their appearance (30.7 %) and are overly concerned with perceived physical defects (29.5 %). In addition, there is a strong appearance-related social pressure through peers and parents. The young people particularly affected in these areas report more emotional and behavioral problems. The results suggest that attention should be given to physical self-assessment as an important factor in diagnosis and therapy. PMID- 29347894 TI - [Gender-specific Differences in the Degree of Burden on Children and Adolescents Taken into Custody]. AB - Gender-specific Differences in the Degree of Burden on Children and Adolescents Taken into Custody Children and adolescents who were taken into care are a high risk group for mental disorders such as externalizing problems or conduct disorders. 95 children and adolescents who were taken into care were tested with the Screening Child Trauma Questionnaire (CTQ) and the Massachusetts Youth Screening Instrument 2 (MAYSI-2). In a large proportion of those children and adolescents emotional and physical neglect and abuse was identified. There were sex differences in suicidal thoughts, somatoform disorders, and emotional abuse. The knowledge of mental disorders as well as the gender-specific characteristics is important for specialists of inhospital institutions, in order to optimize their quality of care. PMID- 29347895 TI - [Childhood Experiences of Adolescents in Boarding Schools. A Comparison with Adolescents in Residential Care and with the General Population]. AB - Childhood Experiences of Adolescents in Boarding Schools. A Comparison with Adolescents in Residential Care and with the General Population Various studies indicate that students in boarding schools experience a lot of violence during their accommodation. However, it is not proved whether adolescents in boarding schools are also a burdensome group regarding early childhood experiences such as neglect and abuse. The aim of the study was to find out more about the experiences of adolescents in boarding schools and to determine whether there are differences between adolescents in residential care and between the general population. Furthermore, it should be examined whether boys and girls differ in their experiences. In the study, adolescents of boarding schools and of residential care all over Germany, starting at the age of 15 (n = 322), were asked regarding physical and emotional neglect/abuse, light/severe parent violence, negative/positive educational behavior of the parents. The results show that students in boarding schools were less likely to be affected by childhood maltreatment and more likely to have experienced positive parental behavior compared to children in residential care. Compared to the general population, students in boarding schools were more often and more severely affected by parental violence. Moreover, girls had experienced parental violence more often than boys. The results indicate that in boarding schools there is a need for support offers for adolescents with a history of violent experiences and that the risk group should be identified directly at the admission to the school. PMID- 29347896 TI - [Impact of Different Types of Fathers on Family Climate in Young Adulthood: A Multi-perspective Longitudinal Study on 14 to 27 Year Olds and their Fathers]. AB - Impact of Different Types of Fathers on Family Climate in Young Adulthood: A Multi-perspective Longitudinal Study on 14 to 27 Year Olds and their Fathers In a 13 year longitudinal study, the influence of three types of fathers on the family climate was analyzed. In a sample of 213 subjects, their 169 fathers and their 210 mothers, the family environment ( Family Environment Scales) was examined when the subjects were young adults (M = 26.89, SD = 1.32). The results of the study point to significant changes in family climate in those young adults who described their father as increasingly negative (N = 28) or distant (N = 11) when in adolescence. These two groups showed a more negative family environment and greater differences between the perspectives of fathers and their young adult children than the group of young adults who described their father as normative (N = 174) when in adolescence. The highest discrepancies were described by young adults with a negative relationship with their father in adolescence. The findings show a long lasting importance of father-child interactions in adolescence. PMID- 29347898 TI - ? PMID- 29347897 TI - [Effects of Bilingualism on Cognitive Functions in Early Childhood]. AB - Effects of Bilingualism on Cognitive Functions in Early Childhood Studies have revealed advantages in cognitive functions among children with bilingualism. In this study we investigate cognitive functions in monolingual and bilingual preschool children taking socioeconomic status into account. The study population consists of 40 monolingual (German) children (Mage = 5.0 +/- 0.4) and 23 bilingual (German/English) children (Mage = 5.1 +/- 0.6). A neuropsychological test battery was conducted. The analyses revealed better performance for bilingual children. However, significant group differences were only found with respect to phonological short-term memory. Controlling for socioeconomic status, intelligence and balanced bilingualism, only slight advantages in cognitive performance were found for bilingual children. Due to high socioeconomic status in both groups, we suppose a ceiling effect. Children's development might be extensively promoted in upper class families and therefore bilingualism may not have additional impact on cognitive functions in these children. PMID- 29347899 TI - [Congress Dates]. PMID- 29347900 TI - [Authors]. PMID- 29347901 TI - [Test Reviews]. PMID- 29347903 TI - Child, Caregiver, and Health Care Provider Perspectives and Experiences Regarding Disclosure of HIV Status to Perinatally Infected Children in Lima, Peru. AB - BACKGROUND: Despite recommendations for disclosure of HIV status to children living with HIV (CLHIV), fewer than half of CLHIV at the Instituto Nacional de Salud del Nino (INSN) in Lima, Peru, have had disclosure. How and when the disclosure process for CLHIV should take place in Peru has not been studied. METHODS: We conducted a qualitative study at INSN to explore perceptions and experiences of 6 health care providers (HCPs), 14 disclosed and nondisclosed CLHIV (8-17 years), and their 14 caregivers regarding knowledge of illness, disclosure of HIV status, and appropriate disclosure approaches. RESULTS: Disclosed children wanted to be told their diagnosis earlier. Nondisclosed children expressed frustration taking medications. Caregivers and HCPs discussed motivations to disclose, including educating, honesty, improving medication adherence, and preventing secondary transmission. CONCLUSION: Culturally appropriate guidelines and training for HCPs and caregivers are needed to support disclosure of children's HIV status and ongoing support for CLHIV. PMID- 29347904 TI - Social skills training and play group intervention for children with oppositional defiant disorders/conduct disorder: Mediating mechanisms in a head-to-head comparison. AB - OBJECTIVE: Social-cognitive information processing, social skills, and social interactions are problem-maintaining variables for aggressive behavior in children. We hypothesized that these factors may be possible mediators of the mechanism of change in the child-centered treatment of conduct disorders (CDs). The aim of the present study (Clinical trials.gov Identifier: NCT01406067) was to examine putative mechanisms of change for the decrease in oppositional-defiant behavior resulting from child-centered treatment of patients with oppositional defiant disorder (ODD) or CD. METHOD: 91 children (age 6-12 years) with ODD/CD were randomized to receive either social skills training or to a resource activating play group. Mediator analyses were conducted using path analyses. RESULTS: The assumed mediating effects were not significant. However, alternative models with the putative mediators and outcome in reversed positions showed significant indirect effects of the oppositional-defiant symptoms as mediator for the decrease of disturbance of social-information processing, social skills, and social interactions. CONCLUSIONS: The proposed model for mechanisms of change could not be confirmed, with the results pointing to a reversed causality. Variables other than those hypothesized must be responsible for mediating the effects of the intervention on child oppositional-defiant behavior. Possible mechanisms of change were discussed. PMID- 29347905 TI - Synthesize of silver-nanoparticles by plant extract and its application for preconcentration of cadmium followed by flame atomic absorption spectrometry. AB - In this paper, Mentha pulegium leaves extract was used as a green reducing agent for the synthesis of silver-nanoparticles. The synthesized silver-nanoparticles were characterized by UV-VIS spectrophotometry, transmission electron microscopy, X-ray spectroscopy and used as an adsorbent for preconcentration of trace levels of cadmium (II). After the desorption of cadmium (II) in 5 mol L-1 formic acid, the desorbent solution was aspirated into the flame atomic absorption spectrometry for the determination of cadmium. In order to optimize the experimental condition, a response surface methodology based on central composite design was used. The optimum conditions are: pH: 8.6, amounts of adsorbent: 30 mg, 10 min extraction time and desorption time of 2 min. Under the optimum condition, the calibration curve was linear in the range of 5-200 MUg L-1 cadmium (II) ion with a correlation coefficient of 0.9995. The limit of detection was 1.1 MUg L-1 and the relative standard deviation for 25 MUg L-1 cadmium (II) ion was 3.0% (n = 5). In order to check the applicability of the proposed method, different real samples were analyzed. Also, the accuracy of this method was successfully checked by the analysis of certified reference material and spike tests. PMID- 29347906 TI - Expression and functional analysis of the Propamocarb-related gene CsDIR16 in cucumbers. AB - BACKGROUND: Cucumber downy mildew is among the most important diseases that can disrupt cucumber production. Propamocarb, also known as propyl-[3 (dimethylamino)propyl]carbamate (PM), is a systemic carbamate fungicide pesticide that is widely applied in agricultural production because of its high efficiency of pathogens control, especially cucumber downy mildew. However, residual PM can remain in cucumbers after the disease has been controlled. To explore the molecular mechanisms of PM retention, cucumber cultivars 'D9320' (with the highest residual PM content) and 'D0351' (lowest residual PM content) were studied. High-throughput tag-sequencing (Tag-Seq) results showed that the CsDIR16 gene was related to PM residue, which was verified using transgenic technology. RESULTS: We investigated the activity of a dirigent cucumber protein encoded by the CsDIR16 in gene response to stress induced by PM treatment. Gene-expression levels of CsDIR16 were up-regulated in the fruits, leaves, and stems of 'D0351' plants in response to PM treatment. However, in cultivar 'D9320', CsDIR16 levels were down-regulated in the leaves and stems after PM treatment, with no statistically significant differences observed in the fruits. Induction by jasmonic acid, abscisic acid, polyethylene glycol 4000, NaCl, and Corynespora cassiicola Wei (Cor) resulted in CsDIR16 up-regulation in 'D0351' and 'D9320'. Expression after salicylic acid treatment was up-regulated in 'D0351', but was down-regulated in 'D9320'. CsDIR16 overexpression lowered PM residues, and these were more rapidly reduced in CsDIR16(+) transgenic 'D9320' plants than in wild type 'D9320' and CsDIR16(-) transgenic plants. CONCLUSIONS: Analyses of the CsDIR16-expression patterns in the cucumber cultivars with the highest and lowest levels of PM residue, and transgenic validation indicated that CsDIR16 plays a positive role in reducing PM residues. The findings of this study help understand the regulatory mechanisms occurring in response to PM stress in cucumbers and in establishing the genetic basis for developing low-pesticide residue cucumber cultivars. PMID- 29347907 TI - Blood lactate is a predictor of short-term mortality in patients with myocardial infarction complicated by heart failure but without cardiogenic shock. AB - BACKGROUND: Mortality in patients with acute myocardial infarction (AMI) has improved substantially with modern therapy including percutaneous coronary interventions (PCI) but remains high in certain subgroups such as patients presenting with overt cardiogenic shock. However, the risk for AMI in patients presenting acutely with signs of heart failure but without cardiogenic shock is less well described. We aimed to identify risk factors for mortality in AMI patients with heart failure without overt cardiogenic shock. METHODS: Using data from the Swedish Coronary Angiography and Angioplasty Registry (SCAAR), we identified patients with operator-registered heart failure (Killip class II-IV), and evaluated predictors of mortality based on clinical factors from review of patient records. RESULTS: A total of 1260 unique patients with acute myocardial infarction underwent PCI in 2014, of which 77 patients (7%) showed signs of heart failure (Killip II-IV) Overall 30-day mortality in patients with Killip class II IV was 20% (N = 15). In patients classified Killip IV (1%), 30-day mortality was 50% (N = 6). In patients presenting with mild to moderate heart failure (Killlip class II-III), 30-day mortality was 14% (N = 9). In patients with Killip class II III, lactate >=2.5 mmol/L was associated with 30-day mortality, whereas systolic blood pressure < 90 mmHg, age, sex and BMI were not. In patients with lactate < 2.5 mmol/L 30-day mortality was 5% (N = 2) whereas mortality was 28% (N = 7) with lactate >=2.5 mmol/L. This cut-off provided discriminative information on 30-day mortality (area under ROC curve 0.74). CONCLUSIONS: In patients with AMI and signs of mild to moderate heart failure, lactate >=2.5 mmol/L provides additional prognostic information. Interventions to reduce risk may be targeted to these patients. PMID- 29347908 TI - Management and outcomes of patients presenting with sepsis and septic shock to the emergency department during nursing handover: a retrospective cohort study. AB - BACKGROUND: Clinical handover is an important process for the transition of patient-care responsibility to the next healthcare provider, but it may divert the attention of the team away from active patients. This is challenging in the Emergency Department (ED) because of highly dynamic patient conditions and is likely relevant in conditions that requires time-sensitive therapies, such as sepsis. We aimed to examine the management and outcomes of patients presenting with sepsis and septic shock to the ED during nursing handover. METHODS: This retrospective cohort study was conducted at a 115-bed ED and more than 200,000 annual ED visits, within a 900-bed academic tertiary care center. Data on Surviving Sepsis Campaign (SSC) bundle elements and hospital mortality were collected for all >=14-year-old patients who presented to the ED with a diagnosis of sepsis and septic shock between January 1, 2011 and October 30, 2013. Our primary outcome was time to antibiotics, were other SSC bundle elements and mortality counted as secondary outcomes. Patients were divided into two groups: 1) handover time group, comprising patients who presented an hour before or after the start of handover time (6-8 AM/PM), and 2) non-handover time group, comprising patients who presented over the remaining 20 h. RESULTS: During the study period, 1330 patients presented with sepsis or septic shock (228, handover time group; 1102, non-handover time group). No significant differences were found between the handover time and non-handover time groups, respectively, in median time to antibiotic administration (100 [interquartile range (IQR) 57-172] vs. 95 [IQR 50-190] minutes; P = 0.07), median time to serum lactate result (162 [IQR 108-246] vs. 156 [IQR 180-246] minutes; P = 0.33) and median time to obtain blood culture (54 [IQR 36-119] vs. 52 [IQR 28-103] minutes; P = 0.52), and hospital mortality rate (29.4% vs. 28.9%; P = 0.89). CONCLUSION: No significant differences were found in median time of SSC bundle elements or hospital mortality between patients who presented during the handover and non-handover times. PMID- 29347910 TI - Getting messier with TIDieR: embracing context and complexity in intervention reporting. AB - BACKGROUND: The Template for Intervention Description and Replication (TIDieR) checklist and guide was developed by an international team of experts to promote full and accurate description of trial interventions. It is now widely used in health research. The aim of this paper is to describe the experience of using TIDieR outside of trials, in a range of applied health research contexts, and make recommendations on its usefulness in such settings. MAIN BODY: We used the TIDieR template for intervention description in six applied health research projects. The six cases comprise a diverse sample in terms of clinical problems, population, settings, stage of intervention development and whether the intervention was led by researchers or the service deliverers. There was also variation in how the TIDieR description was produced in terms of contributors and time point in the project. Researchers involved in the six cases met in two workshops to identify issues and themes arising from their experience of using TIDieR. We identified four themes which capture the difficulties or complexities of using TIDieR in applied health research: (i) fidelity and adaptation: all aspects of an intervention can change over time; (ii) voice: the importance of clarity on whose voice the TIDieR description represents; (iii) communication beyond the immediate context: the usefulness of TIDieR for wider dissemination and sharing; (iv) the use of TIDieR as a research tool. CONCLUSION: We found TIDieR to be a useful tool for applied research outside the context of clinical trials and we suggest four revisions or additions to the original TIDieR which would enable it to better capture these complexities in applied health research: An additional item, 'voice' conveys who was involved in preparing the TIDieR template, such as researchers, service users or service deliverers. An additional item, 'stage of implementation' conveys what stage the intervention has reached, using a continuum of implementation research suggested by the World Health Organisation. A new column, 'modification' reminds authors to describe modifications to any item in the checklist. An extension of the 'how well' item encourages researchers to describe how contextual factors affected intervention delivery. PMID- 29347909 TI - Identification of minor effect QTLs for plant architecture related traits using super high density genotyping and large recombinant inbred population in maize (Zea mays). AB - BACKGROUND: Plant Architecture Related Traits (PATs) are of great importance for maize breeding, and mainly controlled by minor effect quantitative trait loci (QTLs). However, cloning or even fine-mapping of minor effect QTLs is very difficult in maize. Theoretically, large population and high density genetic map can be helpful for increasing QTL mapping resolution and accuracy, but such a possibility have not been actually tested. RESULTS: Here, we employed a genotyping-by-sequencing (GBS) strategy to construct a linkage map with 16,769 marker bins for 1021 recombinant inbred lines (RILs). Accurately mapping of well studied genes P1, pl1 and r1 underlying silk color demonstrated the map quality. After QTL analysis, a total of 51 loci were mapped for six PATs. Although all of them belong to minor effect alleles, the lengths of the QTL intervals, with a minimum and median of 1.03 and 3.40 Mb respectively, were remarkably reduced as compared with previous reports using smaller size of population or small number of markers. Several genes with known function in maize were shown to be overlapping with or close neighboring to these QTL peaks, including na1, td1, d3 for plant height, ra1 for tassel branch number, and zfl2 for tassel length. To further confirm our mapping results, a plant height QTL, qPH1a, was verified by an introgression lines (ILs). CONCLUSIONS: We demonstrated a method for high resolution mapping of minor effect QTLs in maize, and the resulted comprehensive QTLs for PATs are valuable for maize molecular breeding in the future. PMID- 29347911 TI - microRNAs associated with early neural crest development in Xenopus laevis. AB - BACKGROUND: The neural crest (NC) is a class of transitory stem cell-like cells unique to vertebrate embryos. NC cells arise within the dorsal neural tube where they undergo an epithelial to mesenchymal transition in order to migrate and differentiate throughout the developing embryo. The derivative cell types give rise to multiple tissues, including the craniofacial skeleton, peripheral nervous system and skin pigment cells. Several well-studied gene regulatory networks underpin NC development, which when disrupted can lead to various neurocristopathies such as craniofrontonasal dysplasia, DiGeorge syndrome and some forms of cancer. Small RNAs, such as microRNAs (miRNAs) are non-coding RNA molecules important in post-transcriptional gene silencing and critical for cellular regulation of gene expression. RESULTS: To uncover novel small RNAs in NC development we used high definition adapters and next generation sequencing of libraries derived from ectodermal explants of Xenopus laevis embryos induced to form neural and NC tissue. Ectodermal and blastula animal pole (blastula) stage tissues were also sequenced. We show that miR-427 is highly abundant in all four tissue types though in an isoform specific manner and we define a set of 11 miRNAs that are enriched in the NC. In addition, we show miR-301a and miR-338 are highly expressed in both the NC and blastula suggesting a role for these miRNAs in maintaining the stem cell-like phenotype of NC cells. CONCLUSION: We have characterised the miRNAs expressed in Xenopus embryonic explants treated to form ectoderm, neural or NC tissue. This has identified novel tissue specific miRNAs and highlighted differential expression of miR-427 isoforms. PMID- 29347913 TI - An unusual case of infective pneumocephalus: case report of pneumocephalus exacerbated by continuous positive airway pressure. AB - BACKGROUND: Pneumocephalus, illustrated by air in the cranial vault is relatively infrequent and generally associated with neurosurgery, trauma, meningitis and barotrauma. However cases of spontaneous non-traumatic pneumocephalus remain rare. While the relationship between continuous positive airway pressure (CPAP) and atraumatic pneumocephalus has been previously reported, to our knowledge the rare presentation associated with sinus wall osteomyelitis has never been described. We summarize here the case of a 67-year-old woman's acute presentation of Streptococcus salvarius infection after a sudden drop in her consciousness. CASE PRESENTATION: The patient was brought to hospital by family reporting a one week history of sudden deterioration, cognitive decline, and lethargy. The patient presented with reduced arousal, cognitive function (Glasgow Coma Scale: 10, Abbreviated Mental Test Score:CS, 0 AMTS), and no history of trauma. Computed Tomography (CT) imaging was ordered and identified a significant pneumocephalus with no cranial defect. Further investigations acknowledged possible sinus or middle ear disease, which was highlighted by the discovery of S. salivarius by polymerase chain reaction (PCR) and potentially exacerbated by the use of nocturnal continuous positive airway pressure (CPAP). The patient made a complete recovery by eliminating likely causative factors and long term regimental antibiotics administration. CONCLUSION: This case highlights a rare neurological presentation of S. salivarius infection with a mixed aetiology of spontaneous pneumocephalus. This case features an atypical complication associated with CPAP use, and to our knowledge is the first case to be associated with sinus wall osteomyelitis. Recognition of the clinical features and risk factors for spontaneous pneumocephalus -while rare-serve to broaden our clinical index of suspicion when presented with patients experiencing neurological deficit. Information from this case may also aid in improving prevention, early diagnosis, and future management. PMID- 29347912 TI - Genome-wide analysis of the potato Hsp20 gene family: identification, genomic organization and expression profiles in response to heat stress. AB - BACKGROUND: Heat shock proteins (Hsps) are essential components in plant tolerance mechanism under various abiotic stresses. Hsp20 is the major family of heat shock proteins, but little of Hsp20 family is known in potato (Solanum tuberosum), which is an important vegetable crop that is thermosensitive. RESULTS: To reveal the mechanisms of potato Hsp20s coping with abiotic stresses, analyses of the potato Hsp20 gene family were conducted using bioinformatics based methods. In total, 48 putative potato Hsp20 genes (StHsp20s) were identified and named according to their chromosomal locations. A sequence analysis revealed that most StHsp20 genes (89.6%) possessed no, or only one, intron. A phylogenetic analysis indicated that all of the StHsp20 genes, except 10, were grouped into 12 subfamilies. The 48 StHsp20 genes were randomly distributed on 12 chromosomes. Nineteen tandem duplicated StHsp20s and one pair of segmental duplicated genes (StHsp20-15 and StHsp20-48) were identified. A cis element analysis inferred that StHsp20s, except for StHsp20-41, possessed at least one stress response cis-element. A heatmap of the StHsp20 gene family showed that the genes, except for StHsp20-2 and StHsp20-45, were expressed in various tissues and organs. Real-time quantitative PCR was used to detect the expression level of StHsp20 genes and demonstrated that the genes responded to multiple abiotic stresses, such as heat, salt or drought stress. The relative expression levels of 14 StHsp20 genes (StHsp20-4, 6, 7, 9, 20, 21, 33, 34, 35, 37, 41, 43, 44 and 46) were significantly up-regulated (more than 100-fold) under heat stress. CONCLUSIONS: These results provide valuable information for clarifying the evolutionary relationship of the StHsp20 family and in aiding functional characterization of StHsp20 genes in further research. PMID- 29347914 TI - In-depth proteomic analysis of boar spermatozoa through shotgun and gel-based methods. AB - BACKGROUND: Mature spermatozoa contain numerous epididymal and seminal plasma proteins, which full identification through high-throughput technologies may allow for a better understanding of the sperm biology. Therefore, we conducted a global proteomic analysis of boar spermatozoa through shotgun and gel-based methodologies. RESULTS: The total proteins were extracted from mature spermatozoa and subjecsted to proteome analyses. Functional analyses of gene ontology representations and pathway enrichments were conducted on the shotgun dataset, followed by immunology and gene expression validations. Shotgun and gel-based approaches allowed the detection of 2728 proteins and 2123 spots, respectively. Approximately 38% and 59% of total proteins were respectively fully and partially annotated, and 3% were unknown. Gene ontology analysis indicated high proportions of proteins associated with intracellular and cytoplasm localizations, protein and nucleic acid binding, hydrolase and transferase activities, and cellular, metabolic, and regulation of biological processes. Proteins associated with phosphorylation processes and mitochondrial membranes, nucleic acid binding, and phosphate and phosphorous metabolics represented 77% of the dataset. Pathways associated with oxidative phosphorylation, citrate cycle, and extra-cellular matrix-receptor interaction were significantly enriched. Protein complex, intracellular organelle, cytoskeletal parts, fertilization and reproduction, and gap junction pathway were significantly enriched within the top 116 highly abundant proteins. Nine randomly selected protein candidates were confirmed with gel-based identification, immunofluorescence detection, and mRNA expression. CONCLUSIONS: This study offers an in-depth proteomic mapping of mature boar spermatozoa that will enable comparative and discovery research for the improvement of male fertility. PMID- 29347915 TI - The role of hypoglycemia in the burden of living with diabetes among adults with diabetes and family members: results from the DAWN2 study in The Netherlands. AB - BACKGROUND: To examine the relation between self-reported hypoglycemic events, worries about these episodes, and the burden of diabetes in adults with diabetes and family members from The Netherlands. METHODS: As part of the second multinational Diabetes Attitudes, Wishes and Needs (DAWN2) study, 412 Dutch adults with type 1 or type 2 diabetes and 86 family members completed questions about the burden of living with diabetes, the frequency of hypoglycemia, worries about these events, and several demographic and clinical factors. Analyses included hierarchical logistic regression. RESULTS: In total, 41% of people with diabetes and 56% of family members considered diabetes at least somewhat of a burden. In people with diabetes, diabetes burden was independently associated with self-reported current insulin use (fully adjusted OR = 2.75, 95% CI 1.49 5.10), self-reported frequent non-severe hypoglycemia in the past year (OR = 2.45, 1.25-4.83), self-reported severe hypoglycemia in the past year (OR = 1.91, 1.02-3.58), and being very worried about hypoglycemia at least occasionally (OR = 3.64, 2.18-6.10). For family members, the odds of experiencing living with diabetes as a burden was increased only for participants who were at least occasionally very worried about hypoglycemia (adjusted OR = 5.07, 1.12-23.00). CONCLUSIONS: Approximately half of adults with diabetes and adult family members experienced at least some diabetes burden. In both groups, diabetes burden appeared to be associated with being very worried about hypoglycemia at least occasionally. If these results are replicated, new intervention studies could test new ways of decreasing the traumatic consequences of previous or anticipated hypoglycemic events for people with diabetes and family members. PMID- 29347916 TI - Cost-effectiveness of prostate cancer screening: a systematic review of decision analytical models. AB - BACKGROUND: There is ongoing debate about the harms and benefits of a national prostate cancer screening programme. Several model-based cost-effectiveness analyses have been developed to determine whether the benefits of prostate cancer screening outweigh the costs and harms caused by over-detection and over treatment, and the different approaches may impact results. METHODS: To identify models of prostate cancer used to assess the cost-effectiveness of prostate cancer screening strategies, a systematic review of articles published since 2006 was conducted using the NHS Economic Evaluation Database, Medline, EMBASE and HTA databases. The NICE website, UK National Screening website, reference lists from relevant studies were also searched and experts contacted. Key model features, inputs, and cost-effectiveness recommendations were extracted. RESULTS: Ten studies were included. Four of the studies identified some screening strategies to be potentially cost-effective at a PSA threshold of 3.0 ng/ml, including single screen at 55 years, annual or two yearly screens starting at 55 years old, and delayed radical treatment. Prostate cancer screening was modelled using both individual and cohort level models. Model pathways to reflect cancer progression varied widely, Gleason grade was not always considered and clinical verification was rarely outlined. Where quality of life was considered, the methods used did not follow recommended practice and key issues of overdiagnosis and overtreatment were not addressed by all studies. CONCLUSION: The cost-effectiveness of prostate cancer screening is unclear. There was no consensus on the optimal model type or approach to model prostate cancer progression. Due to limited data availability, individual patient-level modelling is unlikely to increase the accuracy of cost effectiveness results compared with cohort-level modelling, but is more suitable when assessing adaptive screening strategies. Modelling prostate cancer is challenging and the justification for the data used and the approach to modelling natural disease progression was lacking. Country-specific data are required and recommended methods used to incorporate quality of life. Influence of data inputs on cost-effectiveness results need to be comprehensively assessed and the model structure and assumptions verified by clinical experts. PMID- 29347917 TI - Does different information disclosure on placebo control affect blinding and trial outcomes? A case study of participant information leaflets of randomized placebo-controlled trials of acupuncture. AB - BACKGROUND: While full disclosure of information on placebo control in participant information leaflets (PILs) in a clinical trial is ethically required during informed consent, there have been concerning voices such complete disclosures may increase unnecessary nocebo responses, breach double-blind designs, and/or affect direction of trial outcomes. Taking an example of acupuncture studies, we aimed to examine what participants are told about placebo controls in randomized, placebo-controlled trials, and how it may affect blinding and trial outcomes. METHODS: Authors of published randomized, placebo-controlled trials of acupuncture were identified from PubMed search and invited to provide PILs for their trials. The collected PILs were subjected to content analysis and categorized based on degree of information disclosure on placebo. Blinding index (BI) as a chance-corrected measurement of blinding was calculated and its association with different information disclosure was examined. The impact of different information disclosure from PILs on primary outcomes was estimated using a random effects model. RESULTS: In 65 collected PILs, approximately 57% of trials fully informed the participants of placebo control, i.e. full disclosure, while the rest gave deceitful or no information on placebo, i.e. no disclosure. Placebo groups in the studies with no disclosure tended to make more opposite guesses on the type of received intervention than those with disclosure, which may reflect wishful thinking (BI -0.21 vs. -0.16; p = 0.38). In outcome analysis, studies with no disclosure significantly favored acupuncture than those with full disclosure (standardized mean difference - 0.43 vs. -0.12; p = 0.03), probably due to enhanced expectations. CONCLUSIONS: How participants are told about placebos can be another potential factor that may influence participant blinding and study outcomes by possibly modulating patient expectation. As we have few empirical findings on this issue, future studies are needed to determine whether the present findings are relevant to other medical disciplines and at the same time a routine practice of fully disclosing placebo information in PILs calls for reevaluation. PMID- 29347918 TI - Somatic evolutionary timings of driver mutations. AB - BACKGROUND: A unified analysis of DNA sequences from hundreds of tumors concluded that the driver mutations primarily occur in the earliest stages of cancer formation, with relatively few driver mutation events detected in the late arising subclones. However, emerging evidence from the sequencing of multiple tumors and tumor regions per individual suggests that late-arising subclones with additional driver mutations are underestimated in single-sample analyses. METHODS: To test whether driver mutations generally map to early tumor development, we examined multi-regional tumor sequencing data from 101 individuals reported in 11 published studies. Following previous studies, we annotated mutations as early-arising when all tumors/regions had those mutations (ubiquitous). We then inferred the fraction of mutations occurring early and compared it with late-arising mutations that were found in only single tumors/regions. RESULTS: While a large fraction of driver mutations in tumors occurred relatively early in cancers, later driver mutations occurred at least as frequently as the early drivers in a substantial number of patients. This result was robust to many different approaches to annotate driver mutations. The relative frequency of early and late driver mutations varied among patients of the same cancer type and in different cancer types. We found that previous reports of the preponderance of early driver mutations were primarily informed by analysis of single tumor variant allele profiles, with which it is challenging to clearly distinguish between early and late drivers. CONCLUSIONS: The origin and preponderance of new driver mutations are not limited to early stages of tumor evolution, with different tumors and regions showing distinct driver mutations and, consequently, distinct characteristics. Therefore, tumors with extensive intratumor heterogeneity appear to have many newly acquired drivers. PMID- 29347919 TI - Knowledge, attitudes and practices on Schistosomiasis in sub-Saharan Africa: a systematic review. AB - BACKGROUND: Schistosomiasis remains a global health problem with an estimated 250 million people in 78 countries infected, of whom 85% live in Sub-Saharan Africa. Preventive chemotherapy remains the key public health strategy to combat schistosomiasis worldwide. Recently the WHO emphasized on the use of integrative approaches in the control and elimination of schistosomiasis. However, a detailed understanding of sociocultural factors that may influence the uptake of the intended health activities and services is vital. Thus, our study sought to understand the knowledge, attitudes, perceptions, beliefs and practices about schistosomiasis in various communities in Sub-Saharan Africa. METHODS: A systematic search of literature for the period 2006-2016 was done on Medline, PubMed, CINAHL, Psych info and Google Scholar using the following key words "Schistosomiasis, S. mansoni, S. haematobium, knowledge, attitudes, perceptions, beliefs and practices in Sub-Saharan Africa" in combination with Bolean operators (OR, AND). In this context, we reviewed studies conducted among school children, community members and caregivers of preschool children. Thematic analysis was utilised for the overall synthesis of the selected studies. This was done after reading the articles in depth. Themes were identified and examined for similarities, differences and contradictions. RESULTS: Gaps in schistosomiasis related knowledge and sociocultural barriers towards the uptake of preventive and treatment services among communities in Sub-Saharan Africa were identified. In addition to limited knowledge and negative attitudes, risky water related practices among community members, school children and caregivers of preschool children were identified as key factors promoting transmission of the disease. CONCLUSION: The study concluded that a comprehensive health education programme using contextual and standardised training tools may improve peoples' knowledge, attitudes and practices in relation to schistosomiasis prevention and control. Findings also highlight the significance of including caregivers in the planning and implementation schistosomiasis control programs targeting pre-school children. PMID- 29347920 TI - A qualitative study of tobacco interventions for LGBTQ+ youth and young adults: overarching themes and key learnings. AB - BACKGROUND: Smoking prevalence is very high among lesbian, gay, bisexual, transgendered and queer (LGBTQ+) youth and young adults (YYA) compared to non LGBTQ+ YYA. A knowledge gap exists on culturally appropriate and effective prevention and cessation efforts for members of this diverse community, as limited interventions have been developed with and for this population, and there are very few studies determining the impact of these interventions. This study identifies the most salient elements of LGBTQ+ cessation and prevention interventions from the perspective of LGBTQ+ YYA. METHODS: Three descriptions of interventions tailored for LGBTQ+ YYA (group cessation counselling, social marketing, and a mobile phone app with social media incorporated), were shared with LGBTQ+ YYA via 24 focus groups with 204 participants in Toronto and Ottawa, Canada. Open-ended questions focused on their feelings, likes and dislikes, and concerns about the culturally modified intervention descriptions. Framework analysis was used to identify overarching themes across all three intervention descriptions. RESULTS: The data revealed eight overarching themes across all three intervention descriptions. Smoking cessation and prevention interventions should have the following key attributes: 1) be LGBTQ+ - specific; 2) be accessible in terms of location, time, availability, and cost; 3) be inclusive, relatable, and highlight diversity; 4) incorporate LGBTQ+ peer support and counselling services; 5) integrate other activities beyond smoking; 6) be positive, motivational, uplifting, and empowering; 7) provide concrete coping mechanisms; and 8) integrate rewards and incentives. CONCLUSIONS: LGBTQ+ YYA focus group participants expressed a desire for an intervention that can incorporate these key elements. The mobile phone app and social media campaign were noted as potential interventions that could include all the essential elements. PMID- 29347921 TI - Prospective pre- and post-race evaluation of biochemical, electrophysiologic, and echocardiographic indices in 30 racing thoroughbred horses that received furosemide. AB - BACKGROUND: Exercise induced cardiac fatigue (EICF) and cardiac dysrhythmias are well described conditions identified in high-level human athletes that increase in frequency with intensity and duration of exercise. Identification of these conditions requires an understanding of normal pre- and post-race cardiac assessment values. The objectives of this study were to (1) characterize selected indices of cardiac function, electrophysiologic parameters, and biochemical markers of heart dysfunction prior to and immediately after high level racing in Thoroughbred horses receiving furosemide; and (2) create pre- and post-race reference values in order to make recommendations on possible screening practices for this population in the future. RESULTS: Thirty Thoroughbred horses were enrolled in the study with an age range of 3-6 years. All horses received furosemide prior to racing. Physical exams, ECGs, and echocardiograms were performed prior to racing (T0) and within 30-60 min following the race (T1). Blood samples were obtained at T0, T1, 4 h post-race (T4) and 24 h after the race (T24). Electrolytes, hematocrit, cardiac troponin I, and partial pressure CO2 values were obtained at all time points. Heart rate was significantly increased post-race compared to baseline value with a median difference of 49 bpm, 95% CI [31,58],(P < 0.0001). No dysrhythmias were noted during ECG assessment. Following the race, an increase in number of horses demonstrating regurgitation through the aorta and AV valves was noted. Systolic function measured by fractional shortening increased significantly with a mean difference of 7.9%, 95% CI [4.8, 10.9], (P < 0.0001). Cardiac troponin I was not different at pre- and immediately post-race time points, but was significantly increased at T4 (P < 0.001). Troponin returned to baseline value by T24. CONCLUSIONS: This study utilized a before and after study design where each horse served as its own control, as such the possible effect of regression to the mean cannot be ruled out. The reference intervals generated in this study may be used to identify selected echocardiographic and electrocardiographic abnormalities in racing horses receiving furosemide. PMID- 29347922 TI - Characteristics of individuals receiving disability benefits in the Netherlands and predictors of leaving the disability benefit scheme: a retrospective cohort study with five-year follow-up. AB - BACKGROUND: Today, work disability is one of the greatest social and labour market challenges for policy makers in most OECD countries, where on average, about 6% of the working-age population relies on disability benefits. Understanding of factors associated with long-term work disability may be helpful to identify groups of individuals at risk for disability benefit entitlement or continuing eligibility, and to develop effective interventions for these groups. The purpose of this study is to provide insight into the main diagnoses of workers who qualify for disability benefits and how these diagnoses differ in age, gender and education. Using a five-year follow-up, we examined the duration of disability benefits and how durations differ among individuals with various characteristics. METHODS: We performed a cohort study of 31,733 individuals receiving disability benefits from the Dutch Social Security Institute (SSI) with a five-year follow-up. Data were collected from SSI databases. Information about disorders was assessed by an insurance physician upon benefit application. These data were used to test for significant relationships among socio-demographics, main diagnoses and comorbidity, and disability benefit entitlement and continuing eligibility. RESULTS: Mental disorders were the most frequent diagnosis for individuals claiming work disability. Diagnoses differed among age groups and education categories. Mental disorders were the main diagnosis for work disability for younger and more highly educated individuals, and physical disorders (generally musculoskeletal, cardiovascular and cancer) were the main diagnosis for older and less educated individuals. In 82% of the claims, the duration of disability benefit was five years or more after approval. Outflow was lowest for individuals with (multiple) mental disorders and those with comorbidity of mental and physical disorders, and highest for individuals with (multiple) physical disorders. CONCLUSIONS: The main diagnosis for persons entitled to disability benefits was mental health problems, especially for young women. In a five-year follow-up, claim duration for disability benefits was long lasting for most claimants. PMID- 29347923 TI - Endoscopic balloon dilatation for benign hepaticojejunostomy anastomotic stricture using short double-balloon enteroscopy in patients with a prior Whipple's procedure: a retrospective study. AB - BACKGROUND: Endoscopic retrograde cholangiography using a short double-balloon endoscope (DB-ERC) is a promising minimally-invasive method for accessing hepaticojejunostomy (HJ) anastomosis in patients with surgically altered anatomy. We aimed to evaluate the immediate and long-term outcomes of balloon dilatation for benign HJ anastomotic stricture (HJAS) in patients who had previously undergone Whipple's procedure using a DB-ERC. METHODS: We conducted a retrospective analysis of 46 patients who underwent balloon dilatation alone with a DB-ERC for benign HJAS between November 2008 and November 2014. The median follow-up duration was 3.5 (interquartile range [IQR], 1.9-5.1) years. RESULTS: The technical and clinical success rates were 100%, and adverse events occurred in 7% (3/46, cholangitis). The median hospitalization period was seven (IQR, 5 10) days. Of 42 patients (91%) followed-up for > 1 year, 24 (51%) had recurrent HJAS at a median of 1.2 (IQR, 0.6-2.9) years after balloon dilatation. The cumulative anastomotic patency rates at 1, 2, and 3 years were 73, 55, and 49%, respectively. In univariate analysis, early stricture formation (< 1 year) was a risk factor for recurrent stenosis, although no statistically significant risk factors were observed in multivariate analysis. CONCLUSIONS: Endoscopic balloon dilatation with DB-ERC for benign HJAS is effective and safe, having good immediate technical success and few adverse events. Further improvements to this procedure are needed to prevent recurrent HJAS. PMID- 29347924 TI - Causes of death in hospitalized children younger than 12 years of age in a Chinese hospital: a 10 year study. AB - BACKGROUND: In China, the majority (77%) of urban children die in hospitals. Hospital-based review could provide insight leading to improvements in clinical practice and increase the survival of critically ill children. The aim of the present study is to identify the trends of immediate causes and chronic underlying diseases associated with deaths of children at one of the largest teaching hospitals in China over a period of 10 years (2006-2015). METHODS: A retrospective analysis of data of all children aged 1 month to 11 years who died at Xinhua Hospital between 2006 and 2015. Demographic details, main causes of deaths, and chronic underlying diseases were reviewed. RESULTS: Case fatality rate was 0.55% (510/93,443) and it represented 0.41-0.80% deaths per year. Overall, the most common immediate causes of deaths in hospitalized children were pneumonia (36.7%), sepsis (13.5%), tumour (11.4%), followed by nontraumatic intracranial or gastrointestinal hemorrhage (10.6%) and cardiac shock (9.6%). Over 70% of the deaths in children were complicated with chronic underlying diseases. Congenital abnormality was the most frequent chronic underlying disease observed in infants (60.3%) and tumour was the main chronic underlying disease in toddlers (31.1%) and older children (44%). CONCLUSIONS: Infectious diseases, especially pneumonia, were the major immediate causes of deaths, and the mortality in the study population decreased with age. Tumour and other noninfectious disease accounted for more deaths in older children. Chronic underlying diseases were found in most deaths of children. PMID- 29347925 TI - Alarm pheromone and kairomone detection via bitter taste receptors in the mouse Grueneberg ganglion. AB - BACKGROUND: The mouse Grueneberg ganglion (GG) is an olfactory subsystem specialized in the detection of volatile heterocyclic compounds signalling danger. The signalling pathways transducing the danger signals are only beginning to be characterized. RESULTS: Screening chemical libraries for compounds structurally resembling the already-identified GG ligands, we found a new category of chemicals previously identified as bitter tastants that initiated fear-related behaviours in mice depending on their volatility and evoked neuronal responses in mouse GG neurons. Screening for the expression of signalling receptors of these compounds in the mouse GG yielded transcripts of the taste receptors Tas2r115, Tas2r131, Tas2r143 and their associated G protein alpha gustducin (Gnat3). We were further able to confirm their expression at the protein level. Challenging these three G protein-coupled receptors in a heterologous system with the known GG ligands, we identified TAS2R143 as a chemical danger receptor transducing both alarm pheromone and predator-derived kairomone signals. CONCLUSIONS: These results demonstrate that similar molecular elements might be used by the GG and by the taste system to detect chemical danger signals present in the environment. PMID- 29347926 TI - Handheld ultrasound to avert maternal and neonatal deaths in 2 regions of the Philippines: an iBuntis(r) intervention study. AB - BACKGROUND: The major causes of maternal and neonatal mortality in the Philippines are hemorrhages and obstructed labor due to placental implantation abnormalities (PIAs), twin pregnancies and fetal malpresentations. All of which are all easily detected by ultrasound. However, women in rural areas and low income groups do not have access to ultrasound during their prenatal care. We aimed to provide additional evidence on the benefits of handheld ultrasound (HU) for screening pregnancy related abnormalities in order to avert maternal and neonatal deaths. METHODS: Using a HU, we trained community healthcare workers (CHWs) to identify 5 obstetrical conditions: fetal viability and number, placental localization, amniotic fluid volume (AFV) and fetal presentation. Women, between 20th and 24th weeks age of gestation from 2 regions of the Philippines, were scanned using the HU and the GE Logic 5 Premium ultrasound machine for validation. Maternal and neonatal deaths averted were estimated as health outcome measures of the study. RESULTS: Four hundred sixty women were scanned of which 146 (31.7%) showed abnormal ultrasound readings consisting of 17 PIAs, 123 fetal malpresentation, 3 twins and 3 AFV abnormalities. The use of HU could have possibly averted 29 (6.3%) maternal deaths and 14.6% neonatal deaths at the time of delivery. Thirty-two out of the 460 women (~7%) delivered at home and 93% in hospitals or birthing facilities/lying-in centers. We observed approximately 95% agreement between the ultrasound readings of the trainees and the trainers, and 99% agreement between the readings made from the HU with the validation machine. CONCLUSION: CHWs could be trained in the use of HU for scanning 5 obstetrical parameters. Early detection of abnormalities in these 5 obstetrical parameters can lead to early referral to facilities that are better equipped to manage obstetrical emergencies. Prenatal ultrasound can be an excellent point of care test for screening pregnant women at risk for possible complications and even death during labor and delivery. TRIAL REGISTRATION: Thai Clinical Trial Registry identification number TCTR20171128004 , retrospectively registered November 28, 2017. PMID- 29347927 TI - Prevalence of hypertensive disorders of pregnancy in Ethiopia: a systemic review and meta-analysis. AB - BACKGROUND: Although hypertensive disorders of pregnancy are the leading cause of poor perinatal outcomes in Ethiopia, there is no study that shows the national prevalence. Therefore, the aim of this study was to estimate the national pooled prevalence of hypertensive disorders of pregnancy from studies conducted in different parts of the country. METHODS: Databases; MEDLINE, PubMed, HINARI, EMBASE, Google Scholar and African Journals Online were searched by using different search terms on HDP and Ethiopia. Joanna Briggs Institute Meta-Analysis of Statistics Assessment and Review Instrument was used for critical appraisal of studies. The analysis was done using STATA 14 software. The Cochran Q test and I2 test statistics were used to test heterogeneity of studies. Egger's test was used to show the publication bias. The pooled prevalence of HDP and the odds ratio (OR) with 95% confidence interval was presented using forest plots. RESULT: Seventeen studies were included in this review, with a total of 258,602 pregnant women. The overall pooled prevalence of hypertensive disorders of pregnancy in Ethiopia was 6.07% (95% CI: 4.83%, 7.31%). The Subgroup analysis by region and year of study showed a higher prevalence of hypertensive disorders of pregnancy in Southern Nations, Nationalities, and Peoples' Region, 10.13% (95% CI = (8.5, 12.43)), and reduction in the rate of HDP from 1990's to 2010's, 8.54% reducing to 5.71% respectively. The pooled prevalence of pregnancy-induced hypertension (PIH) and preeclampsia/eclampsia alone were 6.29 and 5.47 respectively. Pregnant women >= 35 years old are more likely to develop hypertensive disorders of pregnancy, OR = 1.64 (95% CI = (1.18, 2.28)). No statistically significant difference was observed between HDP and younger maternal age (less than 20 years old); OR = 2.92 (95% CI = (0.88, 9.70)). There was no association between hypertensive disorders of pregnancy and number of pregnancy, OR = 1.37 (95% CI = 0.78, 2.41)). CONCLUSIONS: The prevalence of hypertensive disorders of pregnancy is high in Ethiopia. The problem is more common among older pregnant women (> 35 years old). Government and other stakeholders should give due attention to an early screening of hypertension during pregnancy. PMID- 29347928 TI - Chronic obstructive pulmonary disease guidelines in Europe: a look into the future. AB - Clinical practice guidelines are ubiquitous and are developed to provide recommendations for the management of many diseases, including chronic obstructive pulmonary disease. The development of these guidelines is burdensome, demanding a significant investment of time and money. In Europe, the majority of countries develop their own national guidelines, despite the potential for overlap or duplication of effort. A concerted effort and consolidation of resources between countries may alleviate the resource-intensity of maintaining individual national guidelines. Despite significant resource investment into the development and maintenance of clinical practice guidelines, their implementation is suboptimal. Effective strategies of guideline dissemination must be given more consideration, to ensure adequate implementation and improved patient care management in the future. PMID- 29347929 TI - The HIV self-testing debate: where do we stand? AB - BACKGROUND: Emphasis on HIV testing as a gateway to prevention, treatment and care has grown tremendously over the past decade. In turn, this emphasis on testing has created a demand for new policies, programs, and technologies that can potentially increase access to and uptake of HIV testing. HIV self-testing (HST) technologies have gained important momentum following the approval of the over-the-counter self-tests in the United States, the UK, and France. While the renewed interest in HST has given rise to a number of high quality reviews of empirical studies conducted on this topic, we have yet to find an article that captures the extent of the debate on HST. MAPPING THE DEBATE: A critical review of the literature on HST was conducted and organized into three categories based on the focus of the article: 1) Empirical research, 2) Arguments, and 3) Context. We focused exclusively on the second category which included ethical analyses, policy analyses, editorials, opinion pieces, commentaries, letters to the editor and so forth. 10 lines of argument on HST were identified in the literature: 1) Individual - Public Health, 2) Strengths - Limits, 3) Benefits - Harms, 4) Screening - Testing, 5) Target - Market, 6) Health Care - Industry, 7) Regulation - Restriction, 8) Resource-Rich Settings - Resource-Limited Settings, 9) Ethical Unethical, and 10) Exceptionalism - Normalization. Each line of argument is presented and discussed in the paper. CONCLUSION: We conclude by providing examples of critical questions that should be raised in order to take the debate to another level and generate new ways of thinking about HST. PMID- 29347930 TI - Risk factors for stillbirths: how much can a responsive health system prevent? AB - BACKGROUND: The stillbirth rate is an indicator of quality of care during pregnancy and delivery. Good quality care is supported by a functional heath system. The objective of this study was to explore the risk factors for stillbirths, particularly those related to a health system. METHODS: This case control study was conducted in two districts of Bihar, India. Information on cases (stillbirths) were obtained from facilities as reported by Health Management Information System; controls were consecutive live births from the same population as cases. Data were collected from 400 cases and 800 controls. The risk factors were compared using a hierarchical approach and expressed as odds ratio, attributable fractions and population attributable fractions. RESULTS: Of all the factors studied, 22 risk factors were independently associated with stillbirths. Health system-related factors were: administration of two or more doses of oxytocics to augment labour before reaching the facilities (OR 1.6; 95% CI 1.2-2.1), any complications during labour (OR 2.3;1.7 3.1), >30 min to reach a facility from home (OR 1.4;1.05-1.8), >10 min to attend to the pregnant woman after reaching the facility (OR 2.8;1.7-4.5). In the final regression model, modifiable health system-related risk factors included: >10 min taken to attend to women after they reach the facilities (AOR 3.6; 95% CI 2.5 5.1), untreated hypertension during pregnancy (AOR 2.9; 95% CI 1.5-5.6) and presence of any complication during labour, warranting treatment (AOR 1.7; 95% CI 1.2-2.4). Among mothers who reported complications during labour, time taken to reach the facility was significantly different between stillbirths and live births (2nd delay; 33.5 min v/s 25 min; p < 0.001). Attributable fraction for any complication during labour was 0.56 (95% CI 0.42-0.67), >30 min to reach the facility 0.48 (95% CI 0.31-0.60) and institution of management 10 min after reaching the facility 0.68 (95% CI 0.58-0.75). Reaching a facility within 30 min, initiation of management within 10 min of reaching the facility and timely management of complications during labour could have prevented 17%, 37% and 20% of stillbirths respectively. CONCLUSION: A pro-active health system with accessible, timely and quality obstetric services can prevent a considerable proportion of stillbirths in low and middle income countries. PMID- 29347931 TI - Attitudes towards tooth fillings in Tanzanian adults and its association with previous filling experience. AB - BACKGROUND: Tooth filling treatment is utilized at low levels in many low and middle-income countries (LMICs), further, little is known about the prevailing attitudes towards such treatment. This study aimed to assess attitudes towards tooth filling among Tanzanian adults and how previous tooth filling experience is associated with these attitudes. METHODS: A pretested structured questionnaire was distributed among 1522 out-patients in four regional hospitals in Tanzania in 2015-16. The questionnaire had eight statements on a 6-point Likert scale measuring attitudes towards tooth filling. Responses were analyzed independently and through a constructed attitude sum score. Linear regression analysis was used to assess the association of previous tooth fillings on attitudes towards tooth filling treatment. RESULTS: The respondents were mostly female (57.3%), with a mean age of 33.1 years (SD 11.3). About one third of the respondents (36.4%) had primary level of education. Attitudes towards tooth filling treatment were generally negative. Low levels of education and income were associated with more negative attitudes. A small proportion (11.5%) had a previous tooth filling. Having a previous tooth filling was associated with a more positive attitude towards tooth fillings regardless of socioeconomic status. CONCLUSIONS: This study shows that even in areas with limited resources and availability of services, previous experience of tooth fillings is related to more positive attitudes towards restorative treatment, which should be taken into account when planning oral health care programs. PMID- 29347932 TI - Epidemiology of arthritis, chronic back pain, gout, osteoporosis, spondyloarthropathies and rheumatoid arthritis among 1.5 million patients in Australian general practice: NPS MedicineWise MedicineInsight dataset. AB - BACKGROUND: Previous estimates for the prevalence of musculoskeletal conditions (MSK) and chronic pain in Australia have been based on self-report. We aimed to determine the prevalence and distribution of arthritis, chronic back pain, gout, osteoporosis, spondyloarthropathies and rheumatoid arthritis and current consultations for chronic pain among adults attending Australian general practice, and describe their distribution according to sociodemographic characteristics and presence of co-morbidities. METHODS: We investigated 1,501,267 active adult patients (57.6% females; 22.5% >=65y) evaluated between 2013 and 2016 and included in the MedicineInsight database (a National Prescribing Service MedicineWise program), a large general practice data program that extracts longitudinal de-identified electronic medical record data from 'active' patients in over 550 practices. Three main groups of outcomes were investigated: 1) "prevalence" of arthritis, chronic back pain, gout, osteoporosis, spondyloarthropathies, and/or rheumatoid arthritis between 2000 and 2016; 2) "current" diagnosis/encounter for the same conditions occurring between 2013 and 2016, and; 3) "current" consultations for chronic pain of any type occurring between 2013 and 2016. RESULTS: The combined "prevalence" of the investigated MSK (diagnosis between 2000 and 2016) among adults attending Australian general practice was 16.8% (95%CI 15.9;17.7) with 21.3% (95%CI 20.2;22.4) of the sample consulting for chronic pain between 2013 and 2016. The investigated MSK with the highest "prevalence" were arthritis (9.5%) and chronic back pain (6.7%). Patients with some of these MSK attended general practices more frequently than those without these conditions (median 2.0 and 1.0 contacts/year, respectively). The "prevalence" of the investigated MSK and "current" consultations for chronic pain increased with age, especially in women, but chronic pain remained stable at 22% for males aged > 40 years. The investigated MSK and chronic pain were more frequent among those in lower socioeconomic groups, veterans, Aboriginal and Torrent Strait Islanders, current and ex smokers, and patients with chronic obstructive pulmonary disease or heart failure. CONCLUSIONS: The investigated MSK are more frequent among lower socioeconomic groups and the elderly. Based on information collected from adults attending Australian general practices, MedicineInsight provided similar estimates to those obtained from population-based studies, with the advantage of being based on medical diagnosis and including a national sample. PMID- 29347933 TI - A systematic review on the use of healthcare services by undocumented migrants in Europe. AB - BACKGROUND: Undocumented migrants face particular challenges in accessing healthcare services in many European countries. The aim of this study was to systematically review the academic literature on the utilization of healthcare services by undocumented migrants in Europe. METHODS: The databases Embase, Medline, Global Health and Cinahl Plus were searched systematically to identify quantitative, qualitative and mixed methods studies published in 2007-2017. RESULTS: A total of 908 articles were retrieved. Deletion of duplicates left 531. After screening titles, abstracts and full texts according to pre-defined inclusion and exclusion criteria, 29 articles were included in the review. Overall, quantitative studies showed an underutilization of different types of healthcare services by undocumented migrants. Qualitative studies reported that, even when care was received, it was often inadequate or insufficient, and that many undocumented migrants were unfamiliar with their entitlements and faced barriers in utilizing healthcare services. CONCLUSIONS: Although it is difficult to generalize findings from the included studies due to methodological differences, they provide further evidence that undocumented migrants in Europe face particular problems in utilizing healthcare services. PMID- 29347934 TI - The predominant learning approaches of medical students. PMID- 29347935 TI - Real-world experience of women using extended-cycle vs monthly-cycle combined oral contraception in the United States: the National Health and Wellness Survey. AB - BACKGROUND: The real-world experience of women receiving extended-cycle combined oral contraception (COC) versus monthly-cycle COC has not been reported. METHODS: Data were from the United States 2013 National Health and Wellness Survey. Eligible women (18-50 years old, premenopausal, without hysterectomy) currently using extended-cycle COC (3 months between periods) were compared with women using monthly-cycle COC. Treatment satisfaction (1 "extremely dissatisfied" to 7 "extremely satisfied"), adherence (8-item Morisky Medication Adherence Scale(c)), menstrual cycle-related symptoms, health-related quality of life (HRQOL) and health state utilities (Medical Outcomes Short Form Survey-36v2(r)), depression (9-item Patient Health Questionnaire), sleep difficulties, Work Productivity and Activity Impairment-General Health, and healthcare resource use were assessed using one-way analyses of variance, chi-square tests, and generalized linear models (adjusted for covariates). RESULTS: Participants included 260 (6.7%) women using extended-cycle and 3616 (93.3%) using monthly-cycle COC. Women using extended-cycle COC reported significantly higher treatment satisfaction (P = 0.001) and adherence (P = 0.04) and reduced heavy menstrual bleeding (P = 0.029). A non-significant tendency toward reduced menstrual pain (39.5% versus 47.3%) and menstrual cycle-related symptoms (40.0% versus 48.7%) was found in women using extended-cycle versus monthly-cycle COC. Significantly more women using extended cycle COC reported health-related diagnoses, indicating preferential prescription for extended-cycle COC among women reporting more health problems. Consistent with this poorer health, more women using extended-cycle COC reported fatigue, headache, and activity impairment (P values < 0.05). There were no other significant differences between groups. CONCLUSIONS: This real-world observational study supports extended-cycle COC as a valuable treatment option with high satisfaction, high adherence, and reduced heavy menstrual bleeding. PMID- 29347936 TI - Comparative analysis of COPD associated with tobacco smoking, biomass smoke exposure or both. AB - BACKGROUND: Exposure to noxious gases and particles contained in both tobacco smoking (TS) and biomass smoke (BS) are well recognized environmental risk factors for chronic obstructive pulmonary disease (COPD). COPD is characterized by an abnormal inflammatory response, both in the pulmonary and systemic compartments. The differential effects of TS, BS or their combined exposure have not been well characterized yet. This study sought to compare the lung function characteristics and systemic inflammatory response in COPD patients exposed to TS, BS or their combination. METHODS: Sociodemographic, clinical and lung functional parameters were compared across 49 COPD patients with a history of smoking and no BS exposure (TS COPD), 31 never-smoker COPD patients with BS exposure (BS COPD), 46 COPD patients with a combined exposure (TS + BS COPD) and 52 healthy controls (HC) who have never been exposed neither to TS or BS. Blood cell counts, C-reactive protein (CRP), fibrinogen and immunoglobulin E (IgE) levels were quantified in all four groups. RESULTS: TS + BS COPD patients exhibited significantly lower oxygen saturation than the rest of groups (p < 0.01). Spirometry and diffusing capacity were significantly higher in BS than in TS or TS + BS patients. CRP levels were significantly higher in TS COPD patients than in BS COPD group (p < 0.05), whereas fibrinogen was raised in COPD patients with a history of smoking (TS and TS + BS) when compared to control subjects (p < 0.01). Finally, COPD patients with BS exposure (BS and BS + TS groups) showed higher IgE levels than TS and HC (p < 0.05). CONCLUSIONS: There are significant physiological and inflammatory differences between COPD patients with TS, BS and TS + BS exposures. The latter had worse blood oxygenation, whereas the raised levels of IgE in BS exposed patients suggests a differential Th2 systemic inflammatory pattern triggered by this pollutant. PMID- 29347937 TI - Monoclonal antibody-based colloid gold immunochromatographic strip for the rapid detection of Tomato zonate spot tospovirus. AB - BACKGROUND: Tomato zonate spot virus (TZSV), a new species of genus Tospovirus, caused significant losses in yield and problems in quality of many important vegetables and ornamentals in Southwest China and posed a serious threat to important economic crops for the local farmers. A convenient and reliable method was urgently needed for rapid detection and surveillance of TZSV. METHODS: The nucleocapsid protein (N) of TZSV was expressed in Escherichia coli and purified, and was used as the antigen to immunize BALB/c mice. Three monoclonal antibodies (mAbs) 3A2, 5D2 and 5F7 against TZSV were obtained through the hybridoma technique. The mAb 3A2 was conjugated with colloid gold as detecting reagent; mAb 5D2 was coated on a porous nitrocellulose membrane as the detection line and protein A was coated as the control line respectively. The colloid gold immunochromatographic (GICA) strip was assembled. RESULTS: The analysis of Dot ELISA and Western blot showed that the obtained three independent lines of mAbs 3A2, 5D2 and 5F7 specifically recognized TZSV N. Based on the assembly of GICA strip, the detection of TZSV was achieved by loading the infected sap onto the test strip for visual inspection. The analysis could be completed within 5-10 min. No cross-reaction occurred between TZSV and other tested viruses. The visual detection limit of the test strip for TZSV was 800 fold dilutions of TZSV infected leaf samples. CONCLUSION: The mAbs were specific and the colloidal GICA strip developed in this study was convenient, fast and reliable for the detection of TZSV. The method could be applied for the rapid diagnosis and surveillance of TZSV in the field. PMID- 29347938 TI - A survey of health problems of Nepalese female migrants workers in the Middle East and Malaysia. AB - BACKGROUND: Nepal is a key supplier of labour for countries in the Middle East, India and Malaysia. As many more men than women leave Nepal to work abroad, female migrant workers are a minority and very much under-researched. The aim of the study was to explore the health problems of female Nepalese migrants working in the Middle-East and Malaysia. METHODS: The study was conducted among 1010 women who were registered as migrant returnees at an organisation called Pourakhi Nepal. Secondary data were extracted from the records of the organisation covering the five-year period of July 2009 to July 2014. RESULTS: The 1010 participants were aged 14 to 51 with a median age of 31 (IQR: 38-25) years. A quarter of respondents (24%) reported having experienced health problems while in the country of employment. Fever, severe illness and accidents were the most common health problems reported. Working for unlimited periods of time and not being able to change one's place of work were independently associated with a greater likelihood of health problems. Logistic regression shows that migrant women who are illiterate [OR = 1.56, 95% CI: 1.02 to 2.38, p = 0.042], who had changed their workplace [OR = 1.63, 95% CI: 1.14 to 2.32, p = 0.007], who worked unlimited periods of time [OR = 1.64, 95% CI: 1.44 to 1.93, p = 0.020], had been severely maltreated or tortured in the workplace [OR = 1.84, 95% CI: 1.15 to 2.92, p = 0.010], were not being paid on time [OR = 2.38, 95% CI: 1.60 to 3.55, p = 0.038] and migrant women who had family problems at home [OR = 3.48, CI 95%: 1.22 to 9.98, p = 0.020] were significantly associated with health problems in their host country in the Middle East. CONCLUSION: Female migrant workers face various work-related health risks, which are often related to exploitation. The Government of Nepal should initiate awareness campaigns about health risks and rights in relation to health care services in the host countries. Recruiting agencies/employers should provide information on health risks and training for preventive measures. Raising awareness among female migrant workers can make a change in their working lives. PMID- 29347939 TI - Prevalence and management of severe asthma in primary care: an observational cohort study in Sweden (PACEHR). AB - BACKGROUND: Severe and uncontrolled asthma is associated with increased risk of exacerbations and death. A substantial proportion of asthma patients have poor asthma control, and a concurrent COPD diagnosis often increases disease burden. The objective of the study was to describe the prevalence and managemant of severe asthma in a Swedish asthma popuoation. METHODS: In this observational cohort study, primary care medical records data (2006-2013) from 36 primary health care centers were linked to data from national mandatory Swedish health registries. The studied population (>18 years) had a record of drug collection for obstructive pulmonary disease (ATC code R03) during 2011-2012, and a physician diagnosed asthma (ICD-10 code J45-J46) prior to drug collection. Severe asthma was classified as collection of high dose inhaled steroid (> 800 budesonide or equivalent per day) and leukotriene receptor antagonist and/or long acting beta-agonist. Poor asthma control was defined as either collection of >=600 doses of short-acting beta-agonists, and/or >=1 exacerbation(s) during the year post index date. RESULTS: A total of 18,724 asthma patients (mean 49 years, 62.8% women) were included, of whom 17,934 (95.8%) had mild to moderate and 790 (4.2%) had severe asthma. Exacerbations were more prevalent in severe asthma (2.59 [2.41-2.79], Relative Risk [95% confidence interval]; p < 0.001). Poor asthma control was observed for 28.2% of the patients with mild to moderate asthma and for more than half (53.6%) of the patients with severe asthma (<0.001). Prior to index, one in five severe asthma patients had had a contact with secondary care and one third with primary care. A concurrent COPD diagnosis increased disease burden. CONCLUSION: Severe asthma was found in 4.2% of asthma patients in Sweden, more than half of them had poor asthma control, and most patients had no regular health care contacts. PMID- 29347940 TI - Domestic feline contribution in the transmission of Sporothrix in Rio de Janeiro State, Brazil: a comparison between infected and non-infected populations. AB - BACKGROUND: Sporotrichosis is a neglected zoonosis caused by pathogenic fungi belonging to the Sporothrix schenckii complex. In Rio de Janeiro state, this disease reached an epidemic status with over 4700 domestic felines and around 4000 humans affected since the mid-90s. The present study evaluated clinical and epidemiological aspects and also the frequency of colonization and infection by these fungi in healthy cats and among those with suspicious cutaneous lesions, inhabiting four Rio de Janeiro state distinct areas. RESULTS: Three hundred and seventy-one cats were included in two groups: 175 healthy cats [CRG] and 196 cats showing lesions suggesting sporotrichosis [SSG]. Mycological diagnosis allowed SSG animals to be divided in positive [104 cats; +SG] and negative [92 cats; -SG] groups. Nails, oral mucosa and lesions swabs were submitted to culture and potential colonies were subculture for micromorphologycal analysis, dimorphism and molecular tests. In the CRG, only one cat was colonized in the oral cavity [0.57%]; in the -SG group, four animals showed colonization of the nail and/or oral cavity [4.3%]; while the highest frequency of colonization [39.4%] was observed in the +SG. All molecularly typed isolates were identified as S. brasiliensis. CONCLUSION: The results obtained here indicate that healthy cats have a minor role in sporotrichosis transmission within the state of Rio de Janeiro. Conversely, a higher participation of diseased feline in sporotrichosis transmission was evidenced, especially by the colonization of their oral cavity. Sporothrix brasiliensis equally affects and colonizes animals from distinct Rio de Janeiro state areas. Thus, we hypothesize that sporotrichosis is a uniform endemic throughout the state, whose transmission depends mainly on the contact with cats with sporotrichosis. Since Rio de Janeiro displays a world unique epidemic model of the disease, not fully understood, data on the infected and non infected animals can be of major importance for future strategies of sporotrichosis prevention and control. Finally, considering the importance of the current concept of "one health", the experience here observed can be helpful for distinct epizootias and/or zoonosis. PMID- 29347941 TI - A five-year retrospective study of the epidemiological characteristics and visual outcomes of pediatric ocular trauma. AB - BACKGROUND: Pediatric trauma can lead to serious visual impairment as a result of the trauma itself or secondary to amblyopia. Precise data on epidemiological characteristics and visual outcomes of pediatric ocular injuries are valuable for the prevention of monocular blindness. METHODS: A total of 268 cases of pediatric ocular trauma admitted to the Department of Ophthalmology of the Lithuanian University of Health Sciences Hospital from January 2008 to December 2013 were retrospectively reviewed. Data analysed included age, sex, cause, type and treatment of injury, initial and final visual acuity (VA) and tissues involvement. Eye injuries were classified by Birmingham Eye Trauma Terminology (BETT) and Ocular Trauma Classification System (OTCS). RESULTS: The age of children ranged from 6 months to 17.5 years. Boys were more likely to suffer ocular injury than girls. Home was the leading place of eye injury (60.4%), followed by outdoors (31.7%), school (5.2%) and sporting area (2.2%). The highest percentage of eye injuries in children were caused by blunt (40.3%) and sharp objects (29.9%), followed by burns (9.3%), falls (6.7%), explosions (4.5%), fireworks (4.1%), gunshots (1.9%) and traffic accidents (0.7%). Closed globe injury (CGI) was the most common type of eye injury (53.4%). CGI were noted to be higher in children aged 13-18 years, while open globe injury (OGI) were higher in the pre-school age group. Injury of grade 4 and grade 5 were more common in OGI, while grade 1 and grade 2 predominated in cases of CGI. Hypotony, traumatic cataract, iris laceration, vitreous prolapse and uveitis were the most common presentations of OGI, while hyphema, secondary glaucoma and retinal edema were significantly related with CGI. Final diagnoses contributing to poor final visual outcome such as corneal scar corneal opacity, hypotony, aphakia, and retinal detachment were statistically significant related only with OGI. Overall, 65.63% of children regained good visual acuity (VA >= 0.5), but for 18.4% of them, the trauma resulted in severe visual impairment (VA <= 0.1). CONCLUSION: Ocular trauma in children still remains an important preventable cause of ocular morbidity. This study provides data indicating that ophthalmological injuries are a significant cause of visual impairment in children. PMID- 29347942 TI - Infant and child mortality in relation to malaria transmission in KEMRI/CDC HDSS, Western Kenya: validation of verbal autopsy. AB - BACKGROUND: Malaria transmission reduction is a goal of many malaria control programmes. Little is known of how much mortality can be reduced by specific reductions in transmission. Verbal autopsy (VA) is widely used for estimating malaria specific mortality rates, but does not reliably distinguish malaria from other febrile illnesses. Overall malaria attributable mortality includes both direct and indirect deaths. It is unclear what proportion of the deaths averted by reducing malaria transmission are classified as malaria in VA. METHODS: Both all-cause, and cause-specific mortality reported by VA for children under 5 years of age, were assembled from the KEMRI/CDC health and demographic surveillance system in Siaya county, rural Western Kenya for the years 2002-2004. These were linked to household-specific estimates of the Plasmodium falciparum entomological inoculation rate (EIR) based on high resolution spatio-temporal geostatistical modelling of entomological data. All-cause and malaria specific mortality (by VA), were analysed in relation to EIR, insecticide-treated net use (ITN), socioeconomic status (SES) and parameters describing space-time correlation. Time at risk for each child was analysed using Bayesian geostatistical Cox proportional hazard models, with time-dependent covariates. The outputs were used to estimate the diagnostic performance of VA in measuring mortality that can be attributed to malaria exposure. RESULTS: The overall under-five mortality rate was 80 per 1000 person-years during the study period. Eighty-one percent of the total deaths were assigned causes of death by VA, with malaria assigned as the main cause of death except in the neonatal period. Although no trend was observed in malaria-specific mortality assessed by VA, ITN use was associated with reduced all-cause mortality in infants (hazard ratio 0.15, 95% CI 0.02, 0.63) and the EIR was strongly associated with both all-cause and malaria-specific mortality. 48.2% of the deaths could be attributed to malaria by analysing the exposure-response relationship, though only 20.5% of VAs assigned malaria as the cause and the sensitivity of VAs was estimated to be only 26%. Although VAs assigned some deaths to malaria even in areas where there was estimated to be no exposure, the specificity of the VAs was estimated to be 85%. CONCLUSION: Interventions that reduce P. falciparum transmission intensity will not only significantly reduce malaria-diagnosed mortality, but also mortality assigned to other causes in under 5 year old children in endemic areas. In this setting, the VA tool based on clinician review substantially underestimates the number of deaths that could be averted by reducing malaria exposure in childhood, but has a reasonably high specificity. This suggests that malaria transmission-reducing interventions such as ITNs can potentially reduce overall child mortality by as much as twice the total direct malaria burden estimated from VAs. PMID- 29347943 TI - The factors that influence oral health-related quality of life in 15-year-old children. AB - BACKGROUND: Several hypotheses on factors that influence oral health-related quality of life (OHRQoL) have been proposed but a consensus has not been reached. This cross-sectional study aimed to analyse the sociodemographic and clinical factors that may influence the OHRQoL of 15-year-old children. METHODS: A representative sample was selected from Hong Kong. Periodontal status and caries were examined according to WHO criteria. Four orthodontic indices were used to assess malocclusion. Child Perception Questionnaire (CPQ11-14, 37 items) including four domains, namely oral symptoms (OS), functional limitations (FL), emotional well-being (EWB), and social well-being (SWB), was used to measure OHRQoL. Adjusted OR was calculated by ordinal logistic regression. RESULTS: A total of 364 eligible subjects (186 girls, 178 boys) were recruited. The prevalence of caries was higher in girls than in boys (P = 0.013). Compared with girls, boys tended to have a better experience in the domains of EWB, SWB and the total CPQ (adjusted OR = 0.46, 0.59 and 0.61, respectively). Unhealthy periodontal conditions were more prevalent than caries (92.6% vs. 52.7%); moreover, periodontal conditions with CPI scores of 2 had a negative effect on the domain of SWB and the total CPQ (adjusted OR = 1.76 and 1.71, respectively). Only the most severe malocclusion showed an effect on the domain of FL and the total CPQ (adjusted OR = 1.55 and 2.10, respectively). Little effect of family ecosocial factors and caries was found on CPQ scores. CONCLUSION: In this study, gender, periodontal status, and malocclusion showed an effect on OHRQoL after adjusting for potential confounders. Boys had less caries and better OHRQoL than girls did. Unhealthy periodontal conditions led to worse social welfares and OHRQoL. The most severe level of malocclusion caused oral functional limitations, hence worse OHRQoL. PMID- 29347944 TI - Expression of UGP2 and CFL1 expression levels in benign and malignant pancreatic lesions and their clinicopathological significance. AB - BACKGROUND: This study investigated UGP2 (uridine diphosphate-glucose pyrophosphorylase-2) and CFL1 (cofilin-1) expression in pancreatic ductal carcinoma (PDC), paracancerous tissue (PT), benign lesions (BL), and normal tissue (NT) and their clinicopathological significance. METHODS: Surgical specimens, which were collected from 106 cases of pancreatic ductal carcinoma, 35 cases of paracancerous tissues, 55 cases of benign lesions and 13 cases of normal pancreatic tissues, were fixed with 4% formaldehyde to prepare conventional paraffin-embedded sections. EnVision immunohistochemical was used to stain for UGP2 and CFL1. Kaplan-Meier survival analysis was performed to assess the correlation of expression pattern with survival. RESULTS: We found that positive UGP2 and CFL1 expression in PDC were significantly higher than those in PT, BL, and NT. In PT and BL with positive UGP2 and CFL1 expression, mild to severe atypical hyperplasia or intraepithelial neoplasia of grades II-III was observed in ductal epithelium. Positive UGP2 and CFL1 expression in cases with high differentiation, no lymph node metastasis, no surrounding invasion, and TNM (tumor-node-metastasis) staging I or/and II were significantly lower than those in cases with poor differentiation, lymph node metastasis, surrounding invasion, and TNM stage III and/or IV. Positive UGP2 expression in male patients was significantly lower than that in female patients. UGP2 and CFL1 expression in PDC were positively correlated. Kaplan-Meier survival analysis showed the degree of differentiation, tumor maximal diameter, TNM stage, lymph node metastasis, and surrounding invasion, and UGP2 and CFL1 expression were closely related to the average survival time of patients with PDC. The survival time of patients with positive UGP2 and CFL1 expression was significantly shorter than that of patients with negative expression. Cox multivariate analysis showed that poor differentiation, tumor maximal diameter >= 3 cm, TNM stage III or IV, lymph node metastasis, surrounding invasion, and positive UGP2 and CFL1 expression was negatively correlated with the postoperative survival rate and positively correlated with the mortality of patients with PDC. CONCLUSION: Positive expression of UGP2 and CFL1 can serve a valuable prognostic factor in pancreatic cancer. PMID- 29347946 TI - Effects of long-term balance training with vibrotactile sensory augmentation among community-dwelling healthy older adults: a randomized preliminary study. AB - BACKGROUND: Sensory augmentation has been shown to improve postural stability during real-time balance applications. Limited long-term controlled studies have examined retention of balance improvements in healthy older adults after training with sensory augmentation has ceased. This pilot study aimed to assess the efficacy of long-term balance training with and without sensory augmentation among community-dwelling healthy older adults. METHODS: Twelve participants (four males, eight females; 75.6 +/- 4.9 yrs) were randomly assigned to the experimental group (n = 6) or control group (n = 6). Participants trained in their homes for eight weeks, completing three 45-min exercise sessions per week using smart phone balance trainers that provided written, graphic, and video guidance, and monitored trunk sway. During each session, participants performed six repetitions of six exercises selected from five categories (static standing, compliant surface standing, weight shifting, modified center of gravity, and gait). The experimental group received vibrotactile sensory augmentation for four of the six repetitions per exercise via the smart phone balance trainers, while the control group performed exercises without sensory augmentation. The smart phone balance trainers sent exercise performance data to a physical therapist, who recommended exercises on a weekly basis. Balance performance was assessed using a battery of clinical balance tests (Activity Balance Confidence Scale, Sensory Organization Test, Mini Balance Evaluation Systems Test, Five Times Sit to Stand Test, Four Square Step Test, Functional Reach Test, Gait Speed Test, Timed Up and Go, and Timed Up and Go with Cognitive Task) before training, after four weeks of training, and after eight weeks of training. RESULTS: Participants in the experimental group were able to use vibrotactile sensory augmentation independently in their homes. After training, the experimental group had significantly greater improvements in Sensory Organization Test and Mini Balance Evaluation Systems Test scores than the control group. Significant improvement was also observed for Five Times Sit to Stand Test duration within the experimental group, but not in the control group. No significant improvements between the two groups were observed in the remaining clinical outcome measures. CONCLUSION: The findings of this study support the use of sensory augmentation devices by community-dwelling healthy older adults as balance rehabilitation tools, and indicate feasibility of telerehabilitation therapy with reduced input from clinicians. PMID- 29347945 TI - MicroRNA transcriptome analysis of porcine vital organ responses to immunosuppressive porcine cytomegalovirus infection. AB - BACKGROUND: Porcine cytomegalovirus (PCMV) is an immunosuppressive virus that mainly inhibits T-lymphocyte and macrophage immune functions; it has significantly damaged the farming industry. Although recent studies have shown that miRNAs play important roles in immune responses, the regulatory mechanisms of miRNAs during immunosuppressive virus infection remain unclear. METHODS: In this study, porcine small-RNA transcriptomes of PCMV-infected and uninfected vital organs were first characterised by high-throughput sequencing. miRDeep2 software was used to predict novel pig-encoded miRNAs. To verify the accuracy of the high-throughput sequencing results, stem-loop qRT-PCR was performed on 12 significantly DE miRNAs. The physical and functional interactions between the immune-related target genes of the DE miRNAs in PCMV-infected organs were analysed using the STRING database. RESULTS: In total, 306 annotated and 295 novel miRNAs were identified from PCMV-infected and uninfected porcine organs, respectively, through alignment with known Sus scrofa pre-miRNAs. Overall, 92, 107, 95, 77 and 111 miRNAs were significantly differentially expressed in lung, liver, spleen, kidney and thymus after PCMV infection, respectively. According to Gene Ontology enrichment analysis, target genes of the differentially expressed miRNAs associated with immune system processes, regulation of biological processes and metabolic processes were enriched in every sample. Integrated expression analysis of the differentially expressed miRNAs and their target mRNAs in PCMV-infected thymus showed that the significant differential expression of specific miRNAs under the pressure of PCMV infection in central immune organs interfered with the expression of genes involved in important immune-related signalling pathways, thus promoting the viral infection. CONCLUSIONS: This is the first comprehensive analysis of the responses of host small-RNA transcriptomes to PCMV infection in vital porcine organs. It provides new insights into the regulatory mechanisms of miRNAs during infection by immunosuppressive viruses. PMID- 29347947 TI - Efficacy of pre-operative quadriceps strength training on knee-extensor strength before and shortly following total knee arthroplasty: protocol for a randomized, dose-response trial (The QUADX-1 trial). AB - BACKGROUND: Patients with knee osteoarthritis (OA) report knee pain, limitation in physical activities and low quality of life. The two primary treatments for knee OA are non-surgical treatment (e.g., exercise) and surgery (total knee arthroplasty (TKA)); however, national guidelines recommend non-surgical treatment to be tried prior to surgical procedures. Patients with knee OA are characterized by decreased muscle strength, particularly in the knee-extensor muscles. Correspondingly, decreased knee-extensor strength is found to be associated with an increased risk of development, progression and severity of knee OA symptoms. Recent trials suggest a positive effect of pre-operative exercise on pre- and post-operative outcome; however, the most effective pre operative knee-extensor strength exercise dosage is not known. The purpose of the present trial is to investigate the efficacy of three different exercise dosages of pre-operative, home-based, knee-extensor strength exercise on knee-extensor strength before and shortly after surgery in patients eligible for TKA due to end stage knee OA. METHODS: In this randomized dose-response trial with a three-arm parallel design, 140 patients with end-stage knee OA (candidates for TKA) are randomized to one of three exercise dosages (two, four or six session/week) of knee-extensor strength exercise (three sets, 12 repetitions at 12 RM, per exercise session) for 12 weeks. The knee-extensor strength exercise is home-based (unsupervised) and performed with an elastic exercise band following an initial exercise instruction. Adherence is objectively quantified using a sensor attached to the exercise band. The primary outcome will be the change in knee-extensor strength. Following the 12-week exercise period, the need for TKA surgery is re assessed by an orthopedic surgeon. DISCUSSION: Decreased knee-extensor strength is a major challenge in patients with knee OA. Exercise programs focusing on knee extensor strength are found to be more effective in relieving knee OA pain and symptoms compared to more general exercise programs. However, the optimal exercise dosage for knee-extensor strength deficits in patients with knee OA is inconclusive. Knowledge on the dose-response relationship for knee-extensor strength exercise in patients with knee OA will help guide future non-surgical treatment in this patient population. TRIAL REGISTRATION: ClinicalTrials.gov, ID: NCT02931058 . Pre-registered on 10 October 2016. PMID- 29347948 TI - Prenatal exposure to persistent organic pollutants and child overweight/obesity at 5-year follow-up: a prospective cohort study. AB - BACKGROUND: Prenatal exposure to persistent organic pollutants (POPs), may influence offspring weight gain. More prospective epidemiological studies are needed to compliment the growing body of evidence from animal studies. METHODS: Serum from 412 pregnant Norwegian and Swedish women participating in a Scandinavian prospective cohort study were collected in 1986-88, and analyses of two perfluoroalkyl substances (PFASs) and five organochlorines (OCs) were conducted. We used linear and logistic regression models with 95% confidence intervals (CIs) to evaluate the associations between maternal serum POP concentrations at 17-20 weeks of gestation and child overweight/obesity (body mass index (BMI) >= 85th percentile) at 5-year follow-up. Results were further stratified by country after testing for effect modification. We also assessed potential non-monotonic dose-response (NMDR) relationships. RESULTS: In adjusted linear models, we observed increased BMI-for-age-and-sex z-score (beta = 0.18, 95% CI: 0.01-0.35), and increased triceps skinfold z-score (beta = 0.15, 95% CI: 0.02-0.27) in children at 5-year follow-up per ln-unit increase in maternal serum perfluorooctane sulfonate (PFOS) concentrations. We observed increased odds for child overweight/obesity (BMI >= 85th percentile) for each ln-unit increase in maternal serum PFOS levels (adjusted OR: 2.04, 95% CI: 1.11-3.74), with stronger odds among Norwegian children (OR: 2.96, 95% CI: 1.42-6.15). We found similar associations between maternal serum perfluorooctanoate (PFOA) concentrations and child overweight/obesity. We found indications of NMDR relationships between PFOS and polychlorinated biphenyl (PCB) 153 and child overweight/obesity among Swedish children. CONCLUSION: We found positive associations between maternal serum PFAS concentrations and child overweight/obesity at 5-year follow-up, particularly among Norwegian participants. We observed some evidence for NMDR relationships among Swedish participants. PMID- 29347949 TI - Effects of surgery and anesthetic choice on immunosuppression and cancer recurrence. AB - BACKGROUND: The relationship between surgery and anesthetic-induced immunosuppression and cancer recurrence remains unresolved. Surgery and anesthesia stimulate the hypothalamic-pituitary-adrenal (HPA) axis and sympathetic nervous system (SNS) to cause immunosuppression through several tumor derived soluble factors. The potential impact of surgery and anesthesia on cancer recurrence was reviewed to provide guidance for cancer surgical treatment. METHODS: PubMed was searched up to December 31, 2016 using search terms such as, "anesthetic technique and cancer recurrence," "regional anesthesia and cancer recurrence," "local anesthesia and cancer recurrence," "anesthetic technique and immunosuppression," and "anesthetic technique and oncologic surgery." RESULTS: Surgery-induced stress responses and surgical manipulation enhance tumor metastasis via release of angiogenic factors and suppression of natural killer (NK) cells and cell-mediated immunity. Intravenous agents such as ketamine and thiopental suppress NK cell activity, whereas propofol does not. Ketamine induces T-lymphocyte apoptosis but midazolam does not affect cytotoxic T-lymphocytes. Volatile anesthetics suppress NK cell activity, induce T-lymphocyte apoptosis, and enhance angiogenesis through hypoxia inducible factor-1alpha (HIF-1alpha) activity. Opioids suppress NK cell activity and increase regulatory T cells. CONCLUSION: Local anesthetics such as lidocaine increase NK cell activity. Anesthetics such as propofol and locoregional anesthesia, which decrease surgery induced neuroendocrine responses through HPA-axis and SNS suppression, may cause less immunosuppression and recurrence of certain types of cancer compared to volatile anesthetics and opioids. PMID- 29347950 TI - The microRNA-15a-PAI-2 axis in cholangiocarcinoma-associated fibroblasts promotes migration of cancer cells. AB - BACKGROUND: Cholangiocarcinoma (CCA) has an abundance of tumor stroma which plays an important role in cancer progression via tumor-promoting signals. This study aims to explore the microRNA (miRNA) profile of CCA-associated fibroblasts (CCFs) and the roles of any identified miRNAs in CCA progression. METHODS: miRNA expression profiles of CCFs and normal skin fibroblasts were compared by microarray. Identified downregulated miRNAs and their target genes were confirmed by real-time PCR. Their binding was confirmed by a luciferase reporter assay. The effects of conditioned-media (CM) of miRNA mimic- and antagonist-transfected CCFs were tested in CCA migration in wound healing assays. Finally, the levels of miRNA and their target genes were examined by real-time PCR and immunohistochemistry in clinical CCA samples. RESULTS: miR-15a was identified as a downregulated miRNA in CCFs. Moreover, PAI-2 was identified as a novel target gene of miR-15a. Recombinant PAI-2 promoted migration of CCA cells. Moreover, CM from miR-15a mimic-transfected CCFs suppressed migration of CCA cells. Lower expression of miR-15a and higher expression of PAI-2 were observed in human CCA samples compared with normal liver tissues. Importantly, PAI-2 expression correlated with poor prognosis in CCA patients. CONCLUSIONS: These findings highlight the miR-15a/PAI-2 axis as a potential therapeutic target in CCA patients. PMID- 29347951 TI - Health-related quality of life among healthy elderly Iranians: a systematic review and meta-analysis of the literature. AB - BACKGROUND: Health-related quality of life (HRQoL) measurement in elderly people can provide appropriate information for an optimal management of physical/mental conditions. The main objective of the present study was to quantitatively assess the HRQoL among healthy elder Iranian individuals as measured by the Short-Form 36 (SF-36) questionnaire, both overall and at the level of each its single component/domain. METHODS: This study was designed as a systematic review and meta-analysis, following the "Preferred Reporting Results of Systematic Reviews and Meta-Analyses" (PRISMA) guidelines. Embase, PubMed/MEDLINE, ISI/Web of Science (WOS), Scopus, and Iranian databases such as MagIran, SID and Irandoc were mined from inception up to 1st September 2017. Also the grey literature (via Google Scholar) was mined. Two reviewers independently screened titles/abstracts, assessed full-text articles, extracted data, and appraised their quality using the "Strengthening the Reporting of Observational Studies in Epidemiology" (STROBE) checklist. RESULTS: Twenty five studies were included. Mean overall HRQoL was 54.92 [95%CI 51.50-58.33], lower than the value found by studies done in other countries, especially in those economically developed. The sensitivity analysis indicated stability and reliability of results. Pooled scores of each HRQoL domain/sub-scale of the SF-36 questionnaire ranged from 49.77 (physical role functioning) to 63.02 (social role functioning). CONCLUSIONS: HRQoL among healthy elder Iranian individuals is generally low. Health policy-makers should put HRQoL among the elderly as a priority of their agenda, implementing ad hoc programs and providing social, economic and psychological support, as well as increasing the participation of old people in the community life and use their experiences. PMID- 29347952 TI - The German Quality Network Sepsis: study protocol for the evaluation of a quality collaborative on decreasing sepsis-related mortality in a quasi-experimental difference-in-differences design. AB - BACKGROUND: While sepsis-related mortality decreased substantially in other developed countries, mortality of severe sepsis remained as high as 44% in Germany. A recent German cluster randomized trial was not able to improve guideline adherence and decrease sepsis-related mortality within the participating hospitals, partly based on lacking support by hospital management and lacking resources for documentation of prospective data. Thus, more pragmatic approaches are needed to improve quality of sepsis care in Germany. The primary objective of the study is to decrease sepsis-related hospital mortality within a quality collaborative relying on claims data. METHOD: The German Quality Network Sepsis (GQNS) is a quality collaborative involving 75 hospitals. This study protocol describes the conduction and evaluation of the start-up period of the GQNS running from March 2016 to August 2018. Democratic structures assure participatory action, a study coordination bureau provides central support and resources, and local interdisciplinary quality improvement teams implement changes within the participating hospitals. Quarterly quality reports focusing on risk-adjusted hospital mortality in cases with sepsis based on claims data are provided. Hospitals committed to publish their individual risk-adjusted mortality compared to the German average. A complex risk-model is used to control for differences in patient-related risk factors. Hospitals are encouraged to implement a bundle of interventions, e.g., interdisciplinary case analyses, external peer-reviews, hospital-wide staff education, and implementation of rapid response teams. The effectiveness of the GQNS is evaluated in a quasi experimental difference-in-differences design by comparing the change of hospital mortality of cases with sepsis with organ dysfunction from a retrospective baseline period (January 2014 to December 2015) and the intervention period (April 2016 to March 2018) between the participating hospitals and all other German hospitals. Structural and process quality indicators of sepsis care as well as efforts for quality improvement are monitored regularly. DISCUSSION: The GQNS is a large-scale quality collaborative using a pragmatic approach based on claims data. A complex risk-adjustment model allows valid quality comparisons between hospitals and with the German average. If this study finds the approach to be useful for improving quality of sepsis care, it may also be applied to other diseases. TRIAL REGISTRATION: ClinicalTrials.gov NCT02820675. PMID- 29347953 TI - Effect of individual and community-level bed net usage on malaria prevalence among under-fives in the Democratic Republic of Congo. AB - BACKGROUND: Understanding the contribution of community-level long-lasting, insecticidal net (LLIN) coverage to malaria control is critical to planning and assessing intervention campaigns. The Democratic Republic of Congo (DRC), which has one of the highest burdens of malaria cases and deaths and has dramatically scaled up LLIN ownership in recent years thus it is an ideal setting to evaluate the effect of individual versus community-level use to prevent malaria among children under the age of 5. RESULTS: Data were derived from the 2013-2014 DRC Demographic and Health Survey. Community-level LLIN usage was significantly associated with protection against malaria, even when individual-level LLIN usage was included in the model. In stratified analysis, higher levels of community LLIN coverage enhanced the protective effect of individual LLIN usage, resulting in lower malaria prevalence among individuals who used a LLIN. A sub-analysis of individual LLIN usage by insecticide type revealed deltamethrin-treated nets were more protective than permethrin-treated nets, suggesting that mosquitoes in the DRC are more susceptible to deltamethrin. CONCLUSIONS: This study examines the effects of individual and community-level LLIN usage in young children in an area of high ITN usage. Individual and community LLIN usage were significantly associated with protection against malaria in children under 5 in the DRC. Importantly, the protective effect of individual LLIN usage against malaria is enhanced when community LLIN coverage is higher, demonstrating the importance of increasing community-level LLIN usage. LLINs treated with deltamethrin were shown to be more protective against malaria than LLINs treated with permethrin. Demographic and Health Surveys are thus a novel and important means of surveillance for insecticide resistance. PMID- 29347955 TI - Clinical outcomes of a combined transcatheter and minimally invasive atrial septal defect repair program using a 'Heart Team' approach. AB - BACKGROUND: Contemporary transcatheter and minimally invasive approaches allow for improved cosmesis and eliminate sternotomy; however, access to a 'Heart Team' approach to minimally invasive atrial septal defect (ASD) repair remains limited in Canada. METHODS: Retrospective chart review of all minimally invasive atrial septal defect repairs performed between 2009 and 2017 at a quaternary cardiac care centre were included. We compared residual shunt, functional status, periprocedural complications, and hospital lengths-of-stay between patients undergoing transcatheter and minimally invasive endoscopic ASD repair. RESULTS: Between 2009 and 2017, 61 consecutive patients underwent ASD repair at a single centre: 28 patients underwent transcatheter closure (64.3% female; median age 57, interquartile range 43-70.5) and 33 patients underwent minimally invasive endoscopic repair (72.7% female; median age 37, interquartile range 24-50). Patient demographics were similar between the two groups with the exception of transcatheter patients having smaller defect size (1.65 cm versus 2.35 cm, p = 0.002). Procedural success was 93% (26/28) and 100% (33/33) for transcatheter and minimally invasive groups (p = 0.21), respectively. Periprocedural complications were similarly low between the two groups with the exception of longer hospital length-of-stay in the surgical patients (5 days vs 1 day, p < 0.0001). Over a follow-up period (transcatheter: 0.5-56.5 months, surgical: 0.25-89 months), there was no difference in residual shunt (14.3% versus 6.1%, p = 0.4) or NYHA I Functional Class (88.5% versus 96.9%, p = 0.21). CONCLUSION: Transcatheter and minimally invasive approaches to ASD repair are safe and feasible in selected patients using a 'Heart Team' approach and represent attractive alternatives to median sternotomy. PMID- 29347954 TI - A reverse vaccinology approach to the identification and characterization of Ctenocephalides felis candidate protective antigens for the control of cat flea infestations. AB - BACKGROUND: Despite the abundance of the domestic cat flea, Ctenocephalides felis (Bouche, 1835) and disease risks associated with them, flea control is difficult and requires the development of new control interventions such as vaccines. In this study, a reverse vaccinology approach was designed to achieve a rational selection of cat flea candidate protective antigens. METHODS: Based on transcriptomics and proteomics data from unfed adult fleas it was possible to select more specific candidate protective antigens based on highly represented and functionally relevant proteins present in the predicted exoproteome. The protective capacity of the recombinant antigens was evaluated for the control of C. felis infestations in vaccinated cats. RESULTS: Vaccination with recombinant antigens induced an antibody response in immunized cats. Furthermore, a correlation was obtained between the effect of vaccination (antibody levels) and vaccine efficacy on flea phenotype (egg hatchability). The results suggested that the main effect of vaccination with these antigens was on reducing cat flea egg hatchability and fertility, with an overall vaccine efficacy of 32-46%. Although vaccination with these antigens did not have an effect on flea infestations, vaccines affecting reproductive capacity could reduce cat flea populations, particularly under conditions of direct insect transmission between cats. CONCLUSIONS: These results support the development of vaccines with protective antigens affecting flea reproduction and development after feeding on immunized animals for the control of cat flea infestations. PMID- 29347956 TI - What should be included in the assessment of laypersons' paediatric basic life support skills? Results from a Delphi consensus study. AB - BACKGROUND: Assessment of laypersons' Paediatric Basic Life Support (PBLS) skills is important to ensure acquisition of effective PBLS competencies. However limited evidence exists on which PBLS skills are essential for laypersons. The same challenges exist with respect to the assessment of foreign body airway obstruction management (FBAOM) skills. We aimed to establish international consensus on how to assess laypersons' PBLS and FBAOM skills. METHODS: A Delphi consensus survey was conducted. Out of a total of 84 invited experts, 28 agreed to participate. During the first Delphi round experts suggested items to assess laypersons' PBLS and FBAOM skills. In the second round, the suggested items received comments from and were rated by 26 experts (93%) on a 5-point scale (1 = not relevant to 5 = essential). Revised items were anonymously presented in a third round for comments and 23 (82%) experts completed a re-rating. Items with a score above 3 by more than 80% of the experts in the third round were included in an assessment instrument. RESULTS: In the first round, 19 and 15 items were identified to assess PBLS and FBAOM skills, respectively. The ratings and comments from the last two rounds resulted in nine and eight essential assessment items for PBLS and FBAOM skills, respectively. The PBLS items included: "Responsiveness"," Call for help", "Open airway"," Check breathing", "Rescue breaths", "Compressions", "Ventilations", "Time factor" and "Use of AED". The FBAOM items included: "Identify different stages of foreign body airway obstruction", "Identify consciousness", "Call for help", "Back blows", "Chest thrusts/abdominal thrusts according to age", "Identify loss of consciousness and change to CPR", "Assessment of breathing" and "Ventilation". DISCUSSION: For assessment of laypersons some PBLS and FBAOM skills described in guidelines are more important than others. Four out of nine of PBLS skills focus on airway and breathing skills, supporting the major importance of these skills for laypersons' resuscitation attempts. CONCLUSIONS: International consensus on how to assess laypersons' paediatric basic life support and foreign body airway obstruction management skills was established. The assessment of these skills may help to determine when laypersons have acquired competencies. TRIAL REGISTRATION: Not relevant. PMID- 29347957 TI - High parasite burden increases the surfacing and mortality of the manila clam (Ruditapes philippinarum) in intertidal sandy mudflats on the west coast of Korea during hot summer. AB - BACKGROUND: Over the past few decades, mass mortality events of Manila clams have been reported from several tidal flats on the west coast of Korea during hot summers. During such mortality events, once clams simultaneously surface, they fail to re-burrow, perishing within a week. The present study aimed to identify the possible causes of the mass mortality of this clam species by investigating the Perkinsus olseni parasite burden and immune parameters of surfaced clams (SC) and normal buried clams (NBCs) when sea water or sediment temperature in the study area varied from 25 degrees C to 34 degrees C from late July through mid August 2015. RESULTS: We collected 2 groups of clams distributed within a 10-m2 area when a summer clam mortality event occurred around Seonyu-do Island on the west coast of Korea in 2015. The clams were collected 2 days after they surfaced on the sediment and still looked healthy without any gaping. The clams were transported to the laboratory, and we compared P. olseni infection intensity and cell-mediated hemocyte parameters between the NBCs and SCs. SCs showed significantly higher levels of P. olseni burden, lower condition index, and lower levels of cell-mediated immune functions than those of NBCs. CONCLUSIONS: Our study suggests that high P. olseni infection weakens Manila clams' resistance against thermal stress, causing them to surface. We surmise that the summer mass mortality of Manila clams on the west coast of Korea is caused by the combined effects of high P. olseni infection levels and abnormally high water temperature stress. PMID- 29347958 TI - Correlation of structural defects in the ascending aortic wall to ultrasound parameters: benefits for decision-making process in aortic valve surgery. AB - BACKGROUND: Histopathological changes in the ascending aorta wall in patients with severe tricuspid aortic valve (TAV) stenosis were graded and correlated to echocardiographic parameters. Objective was to associate threshold echocardiographic values with structural defects in the ascending aorta providing a tool to improve decision-making process in cases when simultaneous aortic valve replacement (AVR) and ascending aorta replacement is considered. METHODS: Biopsies from 108 TAV stenosis patients subjected to AVR were graded into three grades according to severity of aortic wall changes. Echocardiographic parameters obtained preoperatively and correlated to grade, age, gender and risk factors, were diameters of ventriculo-aortic junction (AA), sinus Valsalva (SV), sinotubular junction (STJ), the largest diameter of the visualized ascending aorta (AscA) as well as indexes: sinus Valsalva (SVI), sinotubular junction (STJI), AscA/AA and STJ/AA. RESULTS: Two echocardiographic parameters portrayed grades with statistical significance: STJ (F = 5.417; p = 0.006 (p < 0.05)) and AscA (F = 3.924; p = 0.023 (p < 0.05)). By using multiple predictors in the setting of Regression analysis, statistically significant differences among grades were reached for AA, SV, STJ, AscA and SVI. With further ROC curves analysis, threshold values for different grades were recognized. Grade 2 is identified in patients with AscA > 3.3 cm, while Grade 3 is identified in patients with values of AscA > 3.5 cm, STJ > 2.9 cm and STJI > 1. CONCLUSIONS: Hemodynamic stress induced by TAV stenosis leads to elastic lamellae disruption in the aortic wall. Those changes could be graded and correlated with echocardiographic parameters of the aortic root and ascending aorta, providing a tool for decision to replace ascending aorta concomitantly with AVR. PMID- 29347959 TI - Influence of Schistosoma japonicum programmed cell death protein 10 on the growth and development of schistosomula. AB - BACKGROUND: Schistosomiasis caused by Schistosoma japonicum is among the most serious endemic zoonoses in China. To study interactions between schistosomula, the pre-adult juvenile stage, and hosts, it is important to study the functions of key genes involved in schistosomula growth and development. Programmed cell death protein 10 (pcdp10) is an important apoptosis-related gene with various biological functions. This study described the molecular characterization of S. japonicum PCDP10 (SjPCDP10) and evaluated its functions in schistosomula. METHODS: Real-time quantitative polymerase chain reaction (qPCR) and western blot were used to detect Sjpcdp10 mRNA and protein levels, respectively, at different developmental stages. Immunolocalization was performed to determine SjPCDP10 expression in the parasite. RNA interference (RNAi) experiments were used to assess gene functions associated with SjPCDP10 in schistosomula growth and development. RESULTS: Real-time qPCR revealed that Sjpcdp10 was expressed during all investigated developmental stages and upregulated during schistosomula growth and development. Histochemical localization showed that SjPCDP10 was mainly distributed in the teguments of schistosomula in all investigated stages and part of the parenchymal area of 14-, 18-, and 21-day-old schistosomula. Following Sjpcdp10 knockdown by RNAi, the lengths, widths, areas, and volumes of schistosomula were significantly lower than those in the control group. Scanning electron microscopy showed that the body surfaces of schistosomula subjected to RNAi were seriously damaged, with few tegumental spines and sensory papillae. Transmission electron microscopy indicated that the teguments of Sjpcdp10 knockdown schistosomula were incomplete, the number of layers was reduced, and the thickness decreased significantly as compared with those in the control group. Furthermore, terminal deoxynucleotidyl transferase dUTP nick-end labelling results showed that the rate of apoptosis in Sjpcdp10-knockdown schistosomula was significantly higher than that in the control group. CONCLUSIONS: Sjpcdp10 knockdown influenced the growth and development of schistosomula. Therefore, our results indicated that SjPCDP10 contributes to the regulation of cell apoptosis and is essential for schistosomula growth and development. PMID- 29347960 TI - Long-term outcome of definitive radiotherapy for cervical esophageal squamous cell carcinoma. AB - BACKGROUND: The aim of this study was to identify the long-term clinical outcome of definitive radiotherapy using three-dimensional conformal radiotherapy (3DCRT) for cervical esophageal squamous cell carcinoma (CESCC). METHODS: We retrospectively reviewed the medical records of 30 patients with CESCC [clinical stage I/II/III/IV(M1LYM); 3/2/12/13] (TNM 7th edition) who underwent definitive radiotherapy using 3DCRT between 2000 and 2014 in our institution. The median prescribed dose for the gross tumor and metastatic lymph nodes was 60 Gy. Twenty six patients underwent elective nodal irradiation for the neck node levels III, IV, and VI and for upper mediastinal lymph nodes with a median dose of 40 Gy. Twenty-six patients underwent concurrent chemotherapy. Initial disease progression sites, locoregional control (LRC) rate, overall survival (OS) rate, and toxicities were retrospectively evaluated. A univariate analysis was performed to identify prognostic factors. RESULTS: With a median follow-up of 110 months, the 5- and 10-year LRC rates were 43.7% and 37.4%, respectively. The 5- and 10-year OS rates were 48.3% and 40.2%, respectively. Locoregional, distant and both area accounted for 83%, 6% and 11% of the initial progression sites. Unresectable status and M1LYM were significantly associated with poor LRC (p < 0.05) and OS (p < 0.05). Grade 3 acute non-hematological toxicity occurred in 13.3% of patients. During the follow-up, patients without any disease progression did not need a permanent gastrostomy tube or tracheostomy. Late toxicity events, including hypothyroidism and cardiovascular disease, were observed; 5- and 10 year cumulative incidence rates of grade 2 hypothyroidism and >=grade 3 cardiovascular disease were 31.6% and 62.5%, and 17.5% and 21.3%, respectively. CONCLUSIONS: Definitive radiotherapy yields a cure for patients with CESCC while preserving their laryngopharyngeal function. The poor LRC rate in the advanced stage needs to be overcome for a better prognosis. As the incidence of radiation induced hypothyroidism and cardiovascular disease was not low, long-term survivors should be followed up for these symptoms. PMID- 29347961 TI - Relevant pericardial effusion caused by cytomegalovirus infection in an immunocompetent patient: a case report. AB - BACKGROUND: Cytomegalovirus infection is known to cause symptomatic disease in immunocompromised patients, while an infection in immunocompetent individuals normally causes few or no symptoms. We present the case of an immunocompetent adult patient with unexpected severe evolution. CASE PRESENTATION: An otherwise healthy, 72-year-old Caucasian woman presented with complaints of progressive shoulder pain and dyspnoea on exertion. The blood test results showed elevated inflammation parameters and elevated hepatic transaminase levels. Radiologic examinations were carried out, and the computed tomography scan revealed a hepatomegaly and a chest X-ray showed evidence of a unilateral pleural effusion. A transthoracic echocardiography detected pericardial effusion with consecutive hemodynamic changes. Since it was considered that using ultrasound-guided pericardiocentesis could significantly increase the risk of liver injury due to hepatomegaly, a pericardial window was performed instead. Further investigation showed that our patient tested positive for an acute cytomegalovirus infection in the serologic tests. Laboratory findings included new evidence of immunoglobulin M seroconversion and high immunoglobulin G avidity, so we considered the possibility that a former cytomegalovirus infection may be coexisting with a new cytomegalovirus reinfection. CONCLUSIONS: In immunocompetent individuals, a symptomatic cytomegalovirus primary infection or reinfection should be considered in patients presenting with pericardial effusion and serositis. PMID- 29347962 TI - Primary explant culture and collagen I substrate enhances corneal endothelial cell morphology. AB - OBJECTIVES: Corneal endothelial cell (CEC) isolation and harvest aim to produce engineered grafts to solve donor corneal tissue shortage. To yield high amounts of CEC maintaining morphological and molecular characteristics, several isolation and culture conditions are reported. Here, we combined direct explant culture, with three different coating conditions and a two-step media approach to compare confluence efficiency, morphology, and specific molecular markers expression. DATA DESCRIPTION: Confluence was reached after 2 weeks in the three coating conditions (Matrigel, collagen I, and in uncoated plates) using a two-step approach (proliferative medium without pituitary extract, followed by stabilizer basal medium). Na/K-ATPase and GPC4 markers were detected by immunocytochemistry while GPC4, CD200, and TJP1 by RT-PCR in the three CEC coating culture conditions. CEC in proliferative medium showed spindle morphology in the three conditions. Polygonal morphology was seen in CEC cultures using basal medium under uncoated and collagen I coated plates. CEC cultured in Matrigel-coated plates remained with spindle morphology in basal medium. PMID- 29347963 TI - Hungry to learn: the prevalence and effects of food insecurity on health behaviors and outcomes over time among a diverse sample of university freshmen. AB - BACKGROUND: To examine longitudinal associations between food insecurity (FI) and health behaviors/outcomes among a diverse sample of university freshmen. METHODS: Freshman students (n = 1138; 65% female; 49% non-white) participating in the Social impact of Physical Activity and nutRition in College study completed surveys on health behaviors and had height/weight measured up to 4 times (T1-T4) in Arizona during 2015-2016. Structural equation models were estimated to determine if, after adjusting for covariates, FI predicted concurrent behaviors/outcomes and subsequent behaviors/outcomes. Analyses reported here were conducted in 2017. RESULTS: The prevalence of FI was significantly higher at the end of each semester (35% and 36%, respectively) than at the start of the year (28%). Longitudinally, FI was not related to any health behaviors/outcomes at future time points. However, FI was significantly and inversely associated with concurrent breakfast consumption on most days of the week (OR = 0.67, 99% CI = 0.46, 0.99), daily evening meal consumption (OR = 0.55, 99% CI = 0.36, 0.86) healthy eating habits on campus (OR = 0.68, 99% CI = 0.46, 1.00), healthy physical activity habits on campus (OR = 0.66, 99% CI = 0.44, 1.00), and positively related to the likelihood of experiencing stress (OR = 1.69, 99% CI = 1.16, 2.46) and depressed mood (OR = 1.98, 99% CI = 1.34, 2.91). CONCLUSIONS: Compared with US prevalence rates, the sample FI prevalence was high. FI was related to poorer eating patterns, physical activity behaviors, and mental health, even after adjusting for prior levels of behavior. PMID- 29347964 TI - Correction to expert consensus on re-irradiation for recurrent glioma. AB - In the original publication [1] two author names were missing the middle names. The corrected versions can be found in this Erratum. PMID- 29347965 TI - Characterization of highly virulent multidrug resistant Vibrio cholerae isolated from a large cholera outbreak in Ghana. AB - OBJECTIVE: The purpose of this study was to investigate the virulent factors of Vibrio cholerae which caused an unprecedented large cholera outbreak in Ghana in 2014 and progressed into 2015, affected 28,975 people with 243 deaths. RESULTS: The V. cholerae isolates were identified to be the classical V. cholerae 01 biotype El Tor, serotype Ogawa, responsible for the large cholera outbreak in Ghana. These El Tor strains bear CtxAB and Tcp virulent genes, making the strains highly virulent. The strains also bear SXT transmissible element coding their resistance to antibiotics, causing high proportions of the strains to be multidrug resistant, with resistant proportions of 95, 90 and 75% to trimethoprim/sulfamethoxazole, ampicillin and ceftriaxone respectively. PFGE patterns indicated that the isolates clustered together with the same pattern and showed clusters similar to strains circulating in DR Congo, Cameroun, Ivory Coast and Togo. The strains carried virulence genes which facilitated the disease causation and spread. This is the first time these virulent genes were determined on the Ghanaian Vibrio strains. PMID- 29347966 TI - ReprDB and panDB: minimalist databases with maximal microbial representation. AB - BACKGROUND: Profiling of shotgun metagenomic samples is hindered by a lack of unified microbial reference genome databases that (i) assemble genomic information from all open access microbial genomes, (ii) have relatively small sizes, and (iii) are compatible to various metagenomic read mapping tools. Moreover, computational tools to rapidly compile and update such databases to accommodate the rapid increase in new reference genomes do not exist. As a result, database-guided analyses often fail to profile a substantial fraction of metagenomic shotgun sequencing reads from complex microbiomes. RESULTS: We report pipelines that efficiently traverse all open access microbial genomes and assemble non-redundant genomic information. The pipelines result in two species resolution microbial reference databases of relatively small sizes: reprDB, which assembles microbial representative or reference genomes, and panDB, for which we developed a novel iterative alignment algorithm to identify and assemble non redundant genomic regions in multiple sequenced strains. With the databases, we managed to assign taxonomic labels and genome positions to the majority of metagenomic reads from human skin and gut microbiomes, demonstrating a significant improvement over a previous database-guided analysis on the same datasets. CONCLUSIONS: reprDB and panDB leverage the rapid increases in the number of open access microbial genomes to more fully profile metagenomic samples. Additionally, the databases exclude redundant sequence information to avoid inflated storage or memory space and indexing or analyzing time. Finally, the novel iterative alignment algorithm significantly increases efficiency in pan genome identification and can be useful in comparative genomic analyses. PMID- 29347967 TI - Data quality and feasibility of the Experience Sampling Method across the spectrum of severe psychiatric disorders: a protocol for a systematic review and meta-analysis. AB - BACKGROUND: Due to a number of methodological advantages and theoretical considerations, more and more studies in clinical psychology research employ the Experience Sampling Method (ESM) as a data collection technique. Despite this growing interest, the absence of methodological guidelines related to the use of ESM has resulted in a large heterogeneity of designs while the potential effects of the design itself on the response behavior of the participants remain unknown. The objectives of this systematic review are to investigate the associations between the design characteristics and the data quality and feasibility of studies relying on ESM in severe psychiatric disorders. METHODS: We will search for all published studies using ambulatory assessment with patients suffering from major depressive disorder, bipolar disorder, and psychotic disorder or individuals at high risk for these disorders. Electronic database searches will be performed in PubMed and Web of Science with no restriction on the publication date. Two reviewers will independently screen original studies in a title/abstract phase and a full-text phase based on the inclusion criteria. The information related to the design and sample characteristics, data quality, and feasibility will be extracted. We will provide results in terms of a descriptive synthesis, and when applicable, a meta-analysis of the findings will be conducted. DISCUSSION: Our results will attempt to highlight how the feasibility and data quality of ambulatory assessment might be related to the methodological characteristics of the study designs in severe psychiatric disorders. We will discuss these associations in different subsamples if sufficient data are available and will examine limitations in the reporting of the methods of ambulatory studies in the current literature. SYSTEMATIC REVIEW REGISTRATION: The protocol for this systematic review was registered on PROSPERO (PROSPERO 2017: CRD42017060322 ) and is available in full on the University of York website ( http://www.crd.york.ac.uk/PROSPERO/display_record.asp?ID=CRD42017060322 ). PMID- 29347968 TI - 18F-FDG-PET/CT and diffusion-weighted MRI for monitoring a BRAF and CDK 4/6 inhibitor combination therapy in a murine model of human melanoma. AB - BACKGROUND: The purpose of the study was to investigate a novel BRAF and CDK 4/6 inhibitor combination therapy in a murine model of BRAF-V600-mutant human melanoma monitored by 18F-FDG-PET/CT and diffusion-weighted MRI (DW-MRI). METHODS: Human BRAF-V600-mutant melanoma (A375) xenograft-bearing balb/c nude mice (n = 21) were imaged by 18F-FDG-PET/CT and DW-MRI before (day 0) and after (day 7) a 1-week BRAF and CDK 4/6 inhibitor combination therapy (n = 12; dabrafenib, 20 mg/kg/d; ribociclib, 100 mg/kg/d) or placebo (n = 9). Animals were scanned on a small animal PET after intravenous administration of 20 MBq 18F-FDG. Tumor glucose uptake was calculated as the tumor-to-liver-ratio (TTL). Unenhanced CT data sets were subsequently acquired for anatomic coregistration. Tumor diffusivity was assessed by DW-MRI using the apparent diffusion coefficient (ADC). Anti-tumor therapy effects were assessed by ex vivo immunohistochemistry for validation purposes (microvascular density - CD31; tumor cell proliferation - Ki-67). RESULTS: Tumor glucose uptake was significantly suppressed under therapy (?TTLTherapy - 1.00 +/- 0.53 vs. ?TTLControl 0.85 +/- 1.21; p < 0.001). In addition, tumor diffusivity was significantly elevated following the BRAF and CDK 4/6 inhibitor combination therapy (?ADCTherapy 0.12 +/- 0.14 * 10-3 mm2/s; ?ADCControl - 0.12 +/- 0.06 * 10-3 mm2/s; p < 0.001). Immunohistochemistry revealed a significant suppression of microvascular density (CD31, 147 +/- 48 vs. 287 +/- 92; p = 0.001) and proliferation (Ki-67, 3718 +/- 998 vs. 5389 +/- 1332; p = 0.007) in the therapy compared to the control group. CONCLUSION: A novel BRAF and CDK 4/6 inhibitor combination therapy exhibited significant anti-angiogenic and anti-proliferative effects in experimental human melanomas, monitored by 18F FDG-PET/CT and DW-MRI. PMID- 29347969 TI - MIRO: guidelines for minimum information for the reporting of an ontology. AB - BACKGROUND: Creation and use of ontologies has become a mainstream activity in many disciplines, in particular, the biomedical domain. Ontology developers often disseminate information about these ontologies in peer-reviewed ontology description reports. There appears to be, however, a high degree of variability in the content of these reports. Often, important details are omitted such that it is difficult to gain a sufficient understanding of the ontology, its content and method of creation. RESULTS: We propose the Minimum Information for Reporting an Ontology (MIRO) guidelines as a means to facilitate a higher degree of completeness and consistency between ontology documentation, including published papers, and ultimately a higher standard of report quality. A draft of the MIRO guidelines was circulated for public comment in the form of a questionnaire, and we subsequently collected 110 responses from ontology authors, developers, users and reviewers. We report on the feedback of this consultation, including comments on each guideline, and present our analysis on the relative importance of each MIRO information item. These results were used to update the MIRO guidelines, mainly by providing more detailed operational definitions of the individual items and assigning degrees of importance. Based on our revised version of MIRO, we conducted a review of 15 recently published ontology description reports from three important journals in the Semantic Web and Biomedical domain and analysed them for compliance with the MIRO guidelines. We found that only 41.38% of the information items were covered by the majority of the papers (and deemed important by the survey respondents) and a large number of important items are not covered at all, like those related to testing and versioning policies. CONCLUSIONS: We believe that the community-reviewed MIRO guidelines can contribute to improving significantly the quality of ontology description reports and other documentation, in particular by increasing consistent reporting of important ontology features that are otherwise often neglected. PMID- 29347970 TI - A synergic effect between CYP2C19*2, CYP2C19*3 loss-of-function and CYP2C19*17 gain-of-function alleles is associated with Clopidogrel resistance among Moroccan Acute Coronary Syndromes patients. AB - OBJECTIVE: The main objective of our study was to investigate the association of CYP2C19*2 and CYP2C19*3 loss-of-function and CYP2C19*17 gain-of-function variants of CYP2C19 gene with Clopidogrel resistance in a sample of Moroccan Acute Coronary Syndromes patients. RESULTS: Our results showed the existence of a synergic effect between the three alleles, statistically very significant, on Clopidogrel resistance among the treated patients (P = 0.0033). For the three variants of the CYP2C19 gene, the heterozygous and homozygous mutant genotypes were the most frequent among ACS patients (CYP2C19*2: 82.76% GA and 10.35% AA; CYP2C19*3: 76.67% GA and 18.33% AA; CYP2C19*17: 66.67% CT and 18.66% TT). Allelic frequencies were 51.73% vs 48.27% (P < 0.001); 56.67% vs 43.33% (P < 0.001); and 52% vs 48% (P = 0.01) for the mutant and wild type alleles of the CYP2C19*2, CYP2C19*3 and CYP2C19*17 variants respectively. Our results support a role of CYP2C19 gene variants as a potential marker of Clopidogrel response. Understanding the functional and clinical consequences of these variants may help for treating patients more effectively, they could be genetically screened and appropriate dose adjustments could be made on the basis of their CYP2C19 genotype. PMID- 29347971 TI - Detection and dissemination of Toxoplasma gondii in experimentally infected calves, a single test does not tell the whole story. AB - BACKGROUND: Although the detection of Toxoplasma gondii in bovine tissues is rare, beef might be an important source of human infection. The use of molecular techniques, such as magnetic capture qPCR (MC-qPCR), in combination with the gold standard method for isolating the parasite (mouse bioassay), may increase the sensitivity of T. gondii detection in infected cattle. The risk of transmission of the parasite to humans from undercooked/raw beef is not fully known and further knowledge about the predilection sites of T. gondii within cattle is needed. In the current study, six Holstein Friesian calves (Bos taurus) were experimentally infected with 106 T. gondii oocysts of the M4 strain and, following euthanasia (42 dpi), pooled tissues were tested for presence of the parasite by mouse bioassay and MC-qPCR. RESULTS: Toxoplasma gondii was detected by both MC-qPCR and mouse bioassay from distinct pools (100 g) of tissues comprising: liver, tongue, heart, diaphragm, semitendinosus (hindlimb), longissimus dorsi muscle (sirloin) and psoas major muscle (fillet). When a selection of individual tissues which had been used for mouse bioassay were examined by MC-qPCR, parasite DNA could only be detected from two animals, despite all calves showing seroconversion after infection. CONCLUSIONS: It is apparent that one individual test will not provide an answer as to whether a calf harbours T. gondii tissue cysts. Although the calves received a known number of infectious oocysts and highly sensitive methods for the detection of the parasite within bovine tissues were applied (mouse bioassay and MC-qPCR), the results confirm previous studies which report low presence of viable T. gondii in cattle and no clear predilection site within bovine tissues. PMID- 29347972 TI - Extending the utility of the WHO recommended assay for direct detection of enteroviruses from clinical specimen for resolving poliovirus co-infection. AB - OBJECTIVES: In a polio-free world there might be reduced funding for poliovirus surveillance. There is therefore the need to ensure that enterovirologist globally, especially those outside the global polio laboratory network, can participate in poliovirus surveillance without neglecting their enterovirus type of interest. To accomplish this, assays are needed that allow such active participation. RESULTS: In this study we describes a sensitive and specific utility extension of the recently recommended WHO RT-snPCR assay that enables independent detection of the three poliovirus types especially in cases of co infection. More importantly, it piggy-backs on the first round PCR product of the WHO recommended assay and consequently ensures that enterovirologists interested in nonpolio enteroviruses can continue their investigations, and contribute significantly and specifically to poliovirus surveillance, by using the excess of their first round PCR product. PMID- 29347973 TI - Believability of messages about preventing breast cancer and heart disease through physical activity. AB - BACKGROUND: The purpose of this research was to examine the relationships of self reported physical activity to involvement with messages that discuss the prevention of heart disease and breast cancer through physical activity, the explicit believability of the messages, and agreement (or disagreement) with specific statements about the messages or disease beliefs in general. METHODS: A within subjects' design was used. Participants (N = 96) read either a breast cancer or heart disease message first, then completed a corresponding task that measured agreement or disagreement and confidence in the agreement or disagreement that 1) physical activity 'reduces risk/does not reduce risk' of breast cancer or heart disease, 2) that breast cancer or heart disease is a 'real/not real risk for me', 3) that women who get breast cancer or heart disease are 'like/not like me', and 4) that women who get breast cancer or heart disease are 'to blame/not to blame'. This task was followed by a questionnaire measuring message involvement and explicit believability. They then read the other disease messages and completed the corresponding agreement and confidence task and questionnaire measures. Lastly, participants completed a questionnaire measuring physical activity related attitudes and intentions, and demographics. RESULTS: There was no difference in message involvement or explicit believability of breast cancer compared to heart disease messages. Active participants had a higher confidence in their agreement that physical activity is preventive of heart disease compared to breast cancer. Multinomial regression models showed that, in addition to physical activity related attitudes and intentions, agreement that physical activity was preventive of heart disease and that women with heart disease are 'like me' were predictors of being more active compared to inactive. In the breast cancer model only attitudes and intentions predicted physical activity group. CONCLUSIONS: Active women likely internalized messages about heart disease prevention through physical activity, making the prevention messages more readily available within memory, and active women may therefore process such information differently. The study of how health-related beliefs are created and are related to perceptions of prevention messages is a rich area of study that may contribute to more effective health promotion. PMID- 29347974 TI - Correction to: Sex differences in drugs: the development of a comprehensive knowledge base to improve gender awareness prescribing. AB - CORRECTION: Unfortunately, after publication of this article [1], two errors were noticed. The names of Linnea Karlsson Lind and Karin Schenck-Gustafsson were formatted incorrectly, attributing incorrect elements to the Given and Family names. Further to this, a reference in Fig. 1 was missing. The line reading, "Fig. 1 shows the working process and each step is explained in more detail below" should instead read, "Fig. 1, modified from Norby et al. [2], shows the working process and each step is explained in more detail below". PMID- 29347976 TI - Intracisternal tuberculoma: a refractory type of tuberculoma indicating surgical intervention. AB - BACKGROUND: Central nervous system (CNS) tuberculoma is a rare disease with severe neurological deficits. This retrospective research is to review the data of patients diagnosed as CNS tuberculoma. Surgeries were performed in all patients. The clinical features especially the neurological image and the anatomical characters of the tuberculomas were concerned. METHODS: Totally 11 patients diagnosed as CNS tuberculoma were admitted in Guangzhou First People's Hospital (7cases) and Changzheng Hospital (4 cases) during 2006-2015. The data including preoperative condition, neurological imaging, and surgical findings was collected and analyzed. RESULTS: The lesions of nine patients (9/11) were totally or subtotally excised and two (2/11) were partially excised. Neurological functions of all patients were improved after surgery without secondary infection. Lesions of nine (9/11) patients preoperatively progressed as a result of paradoxical reaction. Of the 9 patients demonstrated paradoxical progression, all lesions were partially or totally located at the cisterns or the subarachnoid space. Preoperative ATTs lasted 2 to 12 months and tuberculomas were not eliminated. The arachnoid was found thickened and tightly adhered to the lesions during surgeries. Of the 2 cases that paradoxical reaction were excluded, both patients (case 6, intramedullary tuberculoma; case 11, intradural extramedullary tuberculoma) were admitted at onset of the disease. ATTs were preoperatively given for 1 week as neurological deficits aggravated. The tuberculous lesions of CNS or other system showed no obvious change and paradoxical reaction could not be established in both cases. CONCLUSIONS: Exudates of tuberculosis is usually accumulated in the cisterns and frequently results in the paradoxical formation of tuberculoma. Intracisternal tuberculoma is closely related to paradoxical reaction and refractory to anti-tuberculosis therapy. Micro-surgical excision is safe and effective. Early surgical intervention may be considered in the diagnosis of intracisternal tuberculoma especially when paradoxical reaction participates in the development of tuberculoma. PMID- 29347977 TI - Expansion of cytochrome P450 and cathepsin genes in the generalist herbivore brown marmorated stink bug. AB - BACKGROUND: The brown marmorated stink bug (Halyomorpha halys) is an invasive pest in North America which causes severe economic losses on tree fruits, ornamentals, vegetables, and field crops. The H. halys is an extreme generalist and this feeding behaviour may have been a major contributor behind its establishment and successful adaptation in invasive habitats of North America. To develop an understanding into the mechanism of H. halys' generalist herbivory, here we specifically focused on genes putatively facilitating its adaptation on diverse host plants. RESULTS: We generated over 142 million reads via sequencing eight RNA-Seq libraries, each representing an individual H. halys adult. The de novo assembly contained 79,855 high quality transcripts, totalling 39,600,178 bases. Following a comprehensive transcriptome analysis, H. halys had an expanded suite of cytochrome P450 and cathepsin-L genes compared to other insects. Detailed characterization of P450 genes from the CYP6 family, known for herbivore adaptation on host plants, strongly hinted towards H. halys-specific expansions involving gene duplications. In subsequent RT-PCR experiments, both P450 and cathepsin genes exhibited tissue-specific or distinct expression patterns which supported their principal roles of detoxification and/or digestion in a particular tissue. CONCLUSIONS: Our analysis into P450 and cathepsin genes in H. halys offers new insights into potential mechanisms for understanding generalist herbivory and adaptation success in invasive habitats. Additionally, the large scale transcriptomic resource developed here provides highly useful data for gene discovery; functional, population and comparative genomics as well as efforts to assemble and annotate the H. halys genome. PMID- 29347975 TI - Single low-dose primaquine for blocking transmission of Plasmodium falciparum malaria - a proposed model-derived age-based regimen for sub-Saharan Africa. AB - BACKGROUND: In 2012, the World Health Organization recommended blocking the transmission of Plasmodium falciparum with single low-dose primaquine (SLDPQ, target dose 0.25 mg base/kg body weight), without testing for glucose-6-phosphate dehydrogenase deficiency (G6PDd), when treating patients with uncomplicated falciparum malaria. We sought to develop an age-based SLDPQ regimen that would be suitable for sub-Saharan Africa. METHODS: Using data on the anti-infectivity efficacy and tolerability of primaquine (PQ), the epidemiology of anaemia, and the risks of PQ-induced acute haemolytic anaemia (AHA) and clinically significant anaemia (CSA), we prospectively defined therapeutic-dose ranges of 0.15-0.4 mg PQ base/kg for children aged 1-5 years and 0.15-0.5 mg PQ base/kg for individuals aged >=6 years (therapeutic indices 2.7 and 3.3, respectively). We chose 1.25 mg PQ base for infants aged 6-11 months because they have the highest rate of baseline anaemia and the highest risks of AHA and CSA. We modelled an anthropometric database of 661,979 African individuals aged >=6 months (549,127 healthy individuals, 28,466 malaria patients and 84,386 individuals with other infections/illnesses) by the Box-Cox transformation power exponential and tested PQ doses of 1-15 mg base, selecting dosing groups based on calculated mg/kg PQ doses. RESULTS: From the Box-Cox transformation power exponential model, five age categories were selected: (i) 6-11 months (n = 39,886, 6.03%), (ii) 1-5 years (n = 261,036, 45.46%), (iii) 6-9 years (n = 20,770, 3.14%), (iv) 10-14 years (n = 12,155, 1.84%) and (v) >=15 years (n = 328,132, 49.57%) to receive 1.25, 2.5, 5, 7.5 and 15 mg PQ base for corresponding median (1st and 99th centiles) mg/kg PQ base of: (i) 0.16 (0.12-0.25), (ii) 0.21 (0.13-0.37), (iii) 0.25 (0.16-0.38), (iv) 0.26 (0.15-0.38) and (v) 0.27 (0.17-0.40). The proportions of individuals predicted to receive optimal therapeutic PQ doses were: 73.2 (29,180/39,886), 93.7 (244,537/261,036), 99.6 (20,690/20,770), 99.4 (12,086/12,155) and 99.8% (327,620/328,132), respectively. CONCLUSIONS: We plan to test the safety of this age-based dosing regimen in a large randomised placebo-controlled trial (ISRCTN11594437) of uncomplicated falciparum malaria in G6PDd African children aged 0.5 - 11 years. If the regimen is safe and demonstrates adequate pharmacokinetics, it should be used to support malaria elimination. PMID- 29347979 TI - Altered environmental light drives retinal change in the Atlantic Tarpon (Megalops atlanticus) over timescales relevant to marine environmental disturbance. AB - BACKGROUND: For many fish species, retinal function changes between life history stages as part of an encoded developmental program. Retinal change is also known to exhibit plasticity because retinal form and function can be influenced by light exposure over the course of development. Aside from studies of gene expression, it remains largely unknown whether retinal plasticity can provide functional responses to short-term changes in environmental light quality. The aim of this study was to determine whether the structure and function of the fish retina can change in response to altered light intensity and spectrum-not over the course of a developmental regime, but over shorter time periods relevant to marine habitat disturbance. RESULTS: The effects of light environment on sensitivity of the retina, as well as on cone photoreceptor distribution were examined in the Atlantic tarpon (Megalops atlanticus) on 2- and 4-month timescales. In a spectral experiment, juvenile M. atlanticus were placed in either 'red' or 'blue' light conditions (with near identical irradiance), and in an intensity experiment, juveniles were placed in either 'bright' or 'dim' light conditions (with near identical spectra). Analysis of the retina by electroretinography and anti-opsin immunofluorescence revealed that relative to fish held in the blue condition, those in the red condition exhibited longer wavelength peak sensitivity and greater abundance of long-wavelength-sensitive (LWS) cone photoreceptors over time. Following pre-test dark adaption of the retina, fish held in the dim light required less irradiance to produce a standard retinal response than fish held in bright light, developing a greater sensitivity to white light over time. CONCLUSIONS: The results show that structure and function of the M. atlanticus retina can rapidly adjust to changes in environmental light within a given developmental stage, and that such changes are dependent on light quality and the length of exposure. These findings suggest that the fish retina may be resilient to disturbances in environmental light, using retinal plasticity to compensate for changes in light quality over short timescales. PMID- 29347978 TI - Uninvestigated dyspepsia and associated factors of patients with gastrointestinal disorders in Dessie Referral Hospital, Northeast Ethiopia. AB - BACKGROUND: Dyspepsia is a common problem in the community and clinical practice with symptom(s) considered arising from the gastroduodenal region. Dyspepsia burden and associated factors vary from country to country. The aim of this study was to determine the prevalence of uninvestigated dyspepsia (UD) using Rome III criteria, associated risk factors and self-reported dyspepsia symptoms' correlation with H. pylori infection. METHODS: A cross-sectional study was conducted among randomly selected 318 out patients with gastrointestinal complaints during the period from September 1 to December 30, 2015. All patients completed a questionnaire for collecting data regarding sociodemographic, lifestyle and functional gastrointestinal disorders. Diagnosis of dyspepsia was made according to the Rome III criteria. H. pylori infection was assessed using stool antigen test. SPSS version 20.0 statistical software package was used for data analysis. RESULTS: From a total of 318 patients, 48.4% had UD according to Rome III criteria; with 42.1% symptoms of epigastric pain/burning, 26.1% postprandial fullness and 22.6% early satiation. Epigastric pain/burning (AOR = 1.92, 95% CI 1.07-3.43), early satiation (AOR = 2.68, 95% CI 1.38-5.20) and belching (AOR = 4.7, 95% CI 1.54-14.40) were significantly correlated with H. pylori infection. H. pylori infection (AOR = 4.33, 95% CI 2.41-7.76) and aspirin/NSAIDs consumption (AOR = 5.29, 95% CI 2.82-9.93) were independent risk factors for UD. However, consumption of raw fruits/ vegetables at least once a week (AOR = 0.48, 95% CI 0.24-0.98) and taking two or more cups of tea a day (AOR = 0.339, 95% CI 0.17-0.70) were inversely associated with UD. CONCLUSIONS: UD is highly prevalent among adults with gastrointestinal complaints. H. pylori infection is significantly associated with UD and correlates with its symptoms. Individuals with epigastric pain/burning, early satiation and belching should be primary focus of H. pylori infection diagnosis and treatment. The role of consumption of tea, raw fruits and vegetables on dyspepsia needs further large scale study. PMID- 29347980 TI - Semiprone position is superior to supine position for paediatric endotracheal intubation during massive regurgitation, a randomized crossover simulation trial. AB - BACKGROUND: Endotracheal intubation of patients with massive regurgitation represents a challenge in emergency airway management. Gastric contents tend to block suction catheters, and few treatment alternatives exist. Based on a technique that was successfully applied in our district, we wanted to examine if endotracheal intubation would be easier and quicker to perform when the patient is turned over to a semiprone position, as compared to the supine position. METHODS: In a randomized crossover simulation trial, a child manikin with on going regurgitation was intubated both in the supine and semiprone positions. Endpoints were experienced difficulty with the procedure and time to intubation, as well as visually confirmed intubation and first-pass success rate. RESULTS: Intubation in the semiprone position was significantly easier and faster compared to the supine position; the median experienced difficulty on a visual analogue scale was 27 and 65, respectively (p = 0.004), and the median time to intubation was 26 and 45 s, respectively (p = 0.001). There were no significant differences in frequency of visually confirmed intubation (16 and 18, p = 0.490) of first pass success rate (17 and 18, p = 1.000). CONCLUSION: In this experiment, endotracheal intubation during massive regurgitation with the patient in the semiprone position was significantly easier and quicker to perform than in the supine position. Endotracheal intubation in the semiprone position can provide a quick rescue method in situations where airway management is hindered by massive regurgitation, and it represents a possible supplement to current airway management training. PMID- 29347981 TI - Radiation-induced pulmonary gene expression changes are attenuated by the CTGF antibody Pamrevlumab. AB - BACKGROUND: Fibrosis is a delayed side effect of radiation therapy (RT). Connective tissue growth factor (CTGF) promotes the development of fibrosis in multiple settings, including pulmonary radiation injury. METHODS: To better understand the cellular interactions involved in RT-induced lung injury and the role of CTGF in these responses, microarray expression profiling was performed on lungs of irradiated and non-irradiated mice, including mice treated with the anti CTGF antibody pamrevlumab (FG-3019). Between group comparisons (Welch's t-tests) and principal components analyses were performed in Genespring. RESULTS: At the mRNA level, the ability of pamrevlumab to prolong survival and ameliorate RT induced radiologic, histologic and functional lung deficits was correlated with the reversal of a clear enrichment in mast cell, macrophage, dendritic cell and mesenchymal gene signatures. Cytokine, growth factor and matrix remodeling genes that are likely to contribute to RT pneumonitis and fibrosis were elevated by RT and attenuated by pamrevlumab, and likely contribute to the cross-talk between enriched cell-types in injured lung. CONCLUSIONS: CTGF inhibition had a normalizing effect on select cell-types, including immune cells not typically regarded as being regulated by CTGF. These results suggest that interactions between RT-recruited cell-types are critical to maintaining the injured state; that CTGF plays a key role in this process; and that pamrevlumab can ameliorate RT-induced lung injury in mice and may provide therapeutic benefit in other immune and fibrotic disorders. PMID- 29347982 TI - Emergency department hyperoxia is associated with increased mortality in mechanically ventilated patients: a cohort study. AB - BACKGROUND: Providing supplemental oxygen is fundamental in the management of mechanically ventilated patients. Increasing amounts of data show worse clinical outcomes associated with hyperoxia. However, these previous data in the critically ill have not focused on outcomes associated with brief hyperoxia exposure immediately after endotracheal intubation. Therefore, the objectives of this study were to evaluate the impact of isolated early hyperoxia exposure in the emergency department (ED) on clinical outcomes among mechanically ventilated patients with subsequent normoxia in the intensive care unit (ICU). METHODS: This was an observational cohort study conducted in the ED and ICUs of an academic center in the USA. Mechanically ventilated normoxic (partial pressure of arterial oxygen (PaO2) 60-120 mm Hg) ICU patients with mechanical ventilation initiated in the ED were studied. The cohort was categorized into three oxygen exposure groups based on PaO2 values obtained after ED intubation: hypoxia, normoxia, and hyperoxia (defined as PaO2 < 60 mmHg, PaO2 60-120 mm Hg, and PaO2 > 120 mm Hg, respectively, based on previous literature). RESULTS: A total of 688 patients were included. ED normoxia occurred in 350 (50.9%) patients, and 300 (43.6%) had exposure to ED hyperoxia. The ED hyperoxia group had a median (IQR) ED PaO2 of 189 mm Hg (146-249), compared to an ED PaO2 of 88 mm Hg (76-101) in the normoxia group, P < 0.001. Patients with ED hyperoxia had greater hospital mortality (29.7%), when compared to those with normoxia (19.4%) and hypoxia (13.2%). After multivariable logistic regression analysis, ED hyperoxia was an independent predictor of hospital mortality (adjusted OR 1.95 (1.34-2.85)). CONCLUSIONS: ED exposure to hyperoxia is common and associated with increased mortality in mechanically ventilated patients achieving normoxia after admission. This suggests that hyperoxia in the immediate post-intubation period could be particularly injurious, and targeting normoxia from initiation of mechanical ventilation may improve outcome. PMID- 29347983 TI - Experiences of an internet-based support and coaching model for adolescents and young adults with ADHD and autism spectrum disorder -a qualitative study. AB - BACKGROUND: There is a great demand for non-medical treatment and support targeting the needs of adolescents and young adults with autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD). There is also a lack of qualitative studies providing in-depth insight into these individuals' own experiences within this area. The current study aimed to explore how adolescents and young adults with ADHD, ASD or both experienced taking part in an internet based support and coaching intervention. METHODS: Sixteen participants with ASD, ADHD or both who had participated in an 8-week internet-based support and coaching model, were interviewed using semi-structured interviews. Data was analyzed using qualitative content analysis. RESULTS: Analysis yielded three themes; Deciding to participate, Taking part in the coaching process and The significance of format. Various motives for joining were expressed by participants, such as viewing the technology as familiar and appealing and expecting it to be better suited to their situation. There was also a previously unfulfilled need for support among participants. In deciding to take part in the intervention the coaches' competence and knowledge were considered essential, often in the light of previously negative experiences. Taking part in the coaching process meant feeling reassured by having someone to turn to in view of shared obstacles to seeking and receiving help. The support was used for talking through and receiving advice on matters related to their diagnosis. Findings further revealed appreciation for aspects relating to the format such as communicating through the written word, being in one's own home and an experience of immediacy. Some disadvantages were voiced including incomplete personal interaction and failing technology. There were also suggestions for greater flexibility. CONCLUSIONS: The in-depth qualitative data obtained from this study suggest that the current model of support and the internet-based format have specific qualities that could play an important role in the support of adolescents and young adults with ADHD and ASD. Although not a replacement for face-to-face interaction, it could be a promising complement or alternative to other support and treatment options. TRIAL REGISTRATION: "Internet-based Support for Young People with ADHD and Autism - a Controlled Study" retrospectively registered in www.clinicaltrials.gov ( ClinicalTrials.gov Identifier: NCT02300597 ) at 2014-11-10. PMID- 29347984 TI - The effects of state rules on opioid prescribing in Indiana. AB - BACKGROUND: Prescription opioids have been linked to over half of the 28,000 opioid overdose deaths in 2014. High rates of prescription opioid non-medical use have continued despite nearly all states implementing large-scale prescription drug monitoring programs (PDMP), which points to the need to examine the impact of state PDMP's on curbing inappropriate opioid prescribing. In the short-term, PDMPs have been associated with short-term prescribing declines. Yet little is known about how such policies differentially impact patient subgroups or are interpreted by prescribing providers. Our objective was to compare volumes of prescribed opioids before and after Indiana implemented opioid prescribing emergency rules and stratify the changes in opioid prescribing by patient and provider subgroups. METHODS: An interrupted time series analysis was conducted using data obtained from the Indiana PDMP. Prescription level data was merged with census data to characterize patient socioeconomic status. Analyses were stratified by patients' gender, age, opioid dosage, and payer. The primary outcome indicator was the total morphine equivalent dose (MED) of dispensed opioids per day in the state of Indiana. Also considered were number of unique patients, unique providers, and prescriptions; MED per transaction and per day; and number of days supplied. RESULTS: After controlling for time trends, we found that total MED for opioids decreased after implementing the new emergency rules, differing by patient gender, age, and payer. The effect was larger for males than females and almost 10 times larger for 0-20 year olds as compared to the 60+ age range. Medicare and Medicaid patients experienced more decline in prescribing than patients with private insurance. Patients with prescriptions paid for by workers' comp experienced the most significant decline. The emergency rules were associated with decline in both the number of prescribers and the number of day supply. CONCLUSIONS: Although the Indiana opioid prescribing emergency rules impacted statewide prescribing behavior across all individual patient and provider characteristics, the emergency rules' effect was not consistent across patient characteristics. Further studies are needed to assess how individual patient characteristics influence the interpretation and application of state policies on opioid prescribing. PMID- 29347985 TI - Seasonal and inter-annual variation of malaria parasite detection in wild chimpanzees. AB - BACKGROUND: Cross-sectional surveys of chimpanzee (Pan troglodytes) communities across sub-Saharan Africa show large geographical variation in malaria parasite (Plasmodium spp.) prevalence. The drivers leading to this apparent spatial heterogeneity may also be temporally dynamic but data on prevalence variation over time are missing for wild great apes. This study aims to fill this fundamental gap. METHODS: Some 681 faecal samples were collected from 48 individuals of a group of habituated chimpanzees (Tai National Park, Cote d'Ivoire) across four non-consecutive sampling periods between 2005 and 2015. RESULTS: Overall, 89 samples (13%) were PCR-positive for malaria parasite DNA. The proportion of positive samples ranged from 0 to 43% per month and 4 to 27% per sampling period. Generalized Linear Mixed Models detected significant seasonal and inter-annual variation, with seasonal increases during the wet seasons and apparently stochastic inter-annual variation. Younger individuals were also significantly more likely to test positive. CONCLUSIONS: These results highlight strong temporal fluctuations of malaria parasite detection rates in wild chimpanzees. They suggest that the identification of other drivers of malaria parasite prevalence will require longitudinal approaches and caution against purely cross-sectional studies, which may oversimplify the dynamics of this host-parasite system. PMID- 29347986 TI - Untapped aspects of mass media campaigns for changing health behaviour towards non-communicable diseases in Bangladesh. AB - In recent years, non-communicable diseases (NCDs) have become epidemic in Bangladesh. Behaviour changing interventions are key to prevention and management of NCDs. A great majority of people in Bangladesh have low health literacy, are less receptive to health information, and are unlikely to embrace positive health behaviours. Mass media campaigns can play a pivotal role in changing health behaviours of the population. This review pinpoints the role of mass media campaigns for NCDs and the challenges along it, whilst stressing on NCD preventive programmes (with the examples from different countries) to change health behaviours in Bangladesh. Future research should underpin the use of innovative technologies and mobile phones, which might be a prospective option for NCD prevention and management in Bangladesh. PMID- 29347987 TI - Determinants of long-term outcome in ICU survivors: results from the FROG-ICU study. AB - BACKGROUND: Intensive care unit (ICU) survivors have reduced long-term survival compared to the general population. Identifying parameters at ICU discharge that are associated with poor long-term outcomes may prove useful in targeting an at risk population. The main objective of the study was to identify clinical and biological determinants of death in the year following ICU discharge. METHODS: FROG-ICU was a prospective, observational, multicenter cohort study of ICU survivors followed 1 year after discharge, including 21 medical, surgical or mixed ICUs in France and Belgium. All consecutive patients admitted to intensive care with a requirement for invasive mechanical ventilation and/or vasoactive drug support for more than 24 h following ICU admission and discharged from ICU were included. The main outcome measure was all-cause mortality at 1 year after ICU discharge. Clinical and biological parameters on ICU discharge were measured, including the circulating cardiovascular biomarkers N-terminal pro-B type natriuretic peptide, high-sensitive troponin I, bioactive-adrenomedullin and soluble-ST2. Socioeconomic status was assessed using a validated deprivation index (FDep). RESULTS: Of 1570 patients discharged alive from the ICU, 333 (21%) died over the following year. Multivariable analysis identified age, comorbidity, red blood cell transfusion, ICU length of stay and abnormalities in common clinical factors at the time of ICU discharge (low systolic blood pressure, temperature, total protein, platelet and white cell count) as independent factors associated with 1-year mortality. Elevated biomarkers of cardiac and vascular failure independently associated with 1-year death when they are added to multivariable model, with an almost 3-fold increase in the risk of death when combined (adjusted odds ratio 2.84 (95% confidence interval 1.73-4.65), p < 0.001). CONCLUSIONS: The FROG-ICU study identified, at the time of ICU discharge, potentially actionable clinical and biological factors associated with poor long term outcome after ICU discharge. Those factors may guide discharge planning and directed interventions. TRIAL REGISTRATION: ClinicalTrials.gov NCT01367093 . Registered on 6 June 2011. PMID- 29347988 TI - Efficacy of melatonin for sleep disturbance following traumatic brain injury: a randomised controlled trial. AB - BACKGROUND: The study aimed to determine the efficacy of melatonin supplementation for sleep disturbances in patients with traumatic brain injury (TBI). METHODS: This is a randomised double-blind placebo-controlled two-period two-treatment (melatonin and placebo) crossover study. Outpatients were recruited from Epworth and Austin Hospitals Melbourne, Australia. They had mild to severe TBI (n = 33) reporting sleep disturbances post-injury (mean age 37 years, standard deviation 11 years; 67% men). They were given prolonged-release melatonin formulation (2 mg; Circadin(r)) and placebo capsules for 4 weeks each in a counterbalanced fashion separated by a 48-hour washout period. Treatment was taken nightly 2 hours before bedtime. Serious adverse events and side-effects were monitored. RESULTS: Melatonin supplementation significantly reduced global Pittsburgh Sleep Quality Index scores relative to placebo, indicating improved sleep quality [melatonin 7.68 vs. placebo 9.47, original score units; difference 1.79; 95% confidence interval (CI), -2.70 to -0.88; p <= 0.0001]. Melatonin had no effect on sleep onset latency (melatonin 1.37 vs. placebo 1.42, log units; difference -0.05; 95% CI, -0.14 to 0.03; p = 0.23). With respect to the secondary outcomes, melatonin supplementation increased sleep efficiency on actigraphy, and vitality and mental health on the SF-36 v1 questionnaire (p <= 0.05 for each). Melatonin decreased anxiety on the Hospital Anxiety Depression Scale and fatigue on the Fatigue Severity Scale (p <= 0.05 for both), but had no significant effect on daytime sleepiness on the Epworth Sleepiness Scale (p = 0.15). No serious adverse events were reported. CONCLUSIONS: Melatonin supplementation over a 4 week period is effective and safe in improving subjective sleep quality as well as some aspects of objective sleep quality in patients with TBI. TRIAL REGISTRATION: Identifier: 12611000734965; Prospectively registered on 13 July 2011. PMID- 29347989 TI - Balo's concentric sclerosis is immunologically distinct from multiple sclerosis: results from retrospective analysis of almost 150 lumbar punctures. AB - BACKGROUND: Balo's concentric sclerosis (BCS) is a rare inflammatory demyelinating disorder of the central nervous system characterised by concentric layers of demyelination. It is unclear whether BCS is a variant of multiple sclerosis (MS) or a disease entity in its own right. OBJECTIVE: To compare the cerebrospinal fluid (CSF) features of BCS to those of MS. METHODS: Retrospective analysis of the CSF profile of all patients with BCS reported in the medical literature between 1980 and 2017. RESULTS: In total, the results of 146 lumbar punctures (LP) in 132 patients were analysed. The most striking finding was a lack of CSF-restricted oligoclonal bands (OCB) in 66% (56/85) of all LP in the total BCS group, in 74% (14/19) in the subgroup of patients with both MRI and histological evidence for BCS, and in 82% (18/22) in the subgroup of patients with highest radiological confidence (high MRI quality, >= 3 layers of demyelination). OCB disappeared in 1/2 initially OCB-positive patients. These findings are in stark contrast to MS, in which OCB are present in >= 95% of patients and are thought to remain stably detectable over the entire course of disease (p < 0.000001). OCB frequency was low both in 'historic' patients (1980 2009; 37%) and in more recent patients (2010-2017; 31%). OCB-positive and OCB negative patients did not differ significantly with regard to age, sex, disease duration, number of Balo-like lesions on MRI, number of relapses, treatment or final outcome. In accordance with the high rate of OCB negativity, Link's IgG index was negative in 63% of all tested samples (p < 0.000001 vs. MS). CSF pleocytosis was present in 28% (27/96; p < 0.000001 vs. MS) and elevated CSF total protein levels in 41% (31/76) of samples. CONCLUSION: OCB and IgG index frequencies in BCS are much more similar to those reported in neuromyelitis optica or myelin oligodendrocyte glycoprotein antibody-associated encephalomyelitis than to those in MS. Our findings suggest that in most cases BCS-like lesions denote the presence of a disease entity immunologically distinct from MS. In addition, we provide data on the demographics, clinical course and radiological features of BCS based on the largest cohort analysed to date. PMID- 29347990 TI - Establishment of an in vitro chicken epithelial cell line model to investigate Eimeria tenella gamete development. AB - BACKGROUND: Eimeria tenella infection leads to acute intestinal disorders responsible for important economic losses in poultry farming worldwide. The life cycle of E. tenella is monoxenous with the chicken as the exclusive host; infection occurs in caecal epithelial cells. However, in vitro, the complete life cycle of the parasite has only been propagated successfully in primary chicken kidney cells, which comprise undefined mixed cell populations; no cell line model has been able to consistently support the development of the sexual stages of the parasite. We therefore sought to develop a new model to study E. tenella gametogony in vitro using a recently characterised chicken cell line (CLEC-213) exhibiting an epithelial cell phenotype. METHODS: CLEC-213 were infected with sporozoites from a precocious strain or with second generation merozoites (merozoites II) from wild type strains. Sexual stages of the parasite were determined both at the gene and protein levels. RESULTS: To our knowledge, we show for the first time in CLEC-213, that sporozoites from a precocious strain of E. tenella were able to develop to gametes, as verified by measuring gene expression and by using antibodies to a microgamete-specific protein (EtFOA1: flagellar outer arm protein 1) and a macrogamete-specific protein (EtGAM-56), but oocysts were not observed. However, both gametes and oocysts were observed when cells were infected with merozoites II from wild type strains, demonstrating that completion of the final steps of the parasite cycle is possible in CLEC-213 cells. CONCLUSION: The epithelial cell line CLEC-213 constitutes a useful avian tool for studying Eimeria epithelial cell interactions and the effect of drugs on E. tenella invasion, merogony and gametogony. PMID- 29347992 TI - Anatomical relation between S1 sacroiliac screws' entrance points and superior gluteal artery. AB - BACKGROUND: To conduct radiologic anatomical study on the relation between S1 sacroiliac screws' entry points and the route of the pelvic outer superior gluteal artery branches with the aim to provide the anatomical basis and technical reference for the avoidance of damage to the superior gluteal artery during the horizontal sacroiliac screw placement. METHODS: Superior gluteal artery CTA (CT angiography) vascular imaging of 74 healthy adults (37 women and 37 men) was done with 128-slice spiral CT (computed tomography). The CT attendant measuring software was used to portray the "safe bony entrance area" (hereinafter referred to as "Safe Area") of the S1 segment in the standard lateral pelvic view of three-dimensional reconstruction. The anatomical relation between S1 sacroiliac screws' Safe Area and the pelvic outer superior gluteal artery branches was observed and recorded. The number of cases in which artery branches intersected the Safe Area was counted. The cases in which superior gluteal artery branches disjointed from the Safe Area were identified, and the shortest distance between the Safe Area and the superior gluteal artery branch closest to the Safe Area was measured. RESULTS: Three cases out of the 74 sample cases were excluded from this study as they were found to have no bony space for horizontal screw placement in S1 segment. Among the remaining 71 sample cases, there are 32 cases (45.1%) where the deep superior branch of superior gluteal artery passes through the Safe Area of S1 entrance point. There was no distinguishing feature and rule on how the deep superior branches and the Safe Area overlapped. In the 39 cases in which superior gluteal artery branches disjointed from the Safe Area, the deep superior branches of superior gluteal artery were the branches closest to the Safe Area and the part of the branch closest to the Safe Area was located in front of the widest part of the Safe Area. The shortest distance between the deep superior branch and the Safe Area is 0.86 +/- 0.84 cm. CONCLUSION: There is a high risk of accidental injury of the deep superior branches of superior gluteal artery in the process of S1 sacroiliac screw placement. Even if the entry points are located in the safe bony entrance area, the absolute secure placement cannot be assured. We suggest that great attention should be paid to make thorough preoperative plans. PMID- 29347991 TI - The benefits and tolerance of exercise in myasthenia gravis (MGEX): study protocol for a randomised controlled trial. AB - BACKGROUND: Research exploring the effects of physical exercise in auto-immune myasthenia gravis (MG) is scarce. The few existing studies present methodological shortcomings limiting the conclusions and generalisability of results. It is hypothesised that exercise could have positive physical, psychological as well as immunomodulatory effects and may be a beneficial addition to current pharmacological management of this chronic disease. The aim of this study is to evaluate the benefits on perceived quality of life (QOL) and physical fitness of a home-based physical exercise program compared to usual care, for patients with stabilised, generalised auto-immune MG. METHODS: MGEX is a multi-centre, interventional, randomised, single-blind, two-arm parallel group, controlled trial. Forty-two patients will be recruited, aged 18-70 years. Following a three month observation period, patients will be randomised into a control or experimental group. The experimental group will undertake a 40-min home-based physical exercise program using a rowing machine, three times a week for three months, as an add-on to usual care. The control group will receive usual care with no additional treatment. All patients will be followed up for a further three months. The primary outcome is the mean change in MGQOL-15-F score between three and six months (i.e. pre-intervention and immediately post-intervention periods). The MGQOL-15-F is an MG-specific patient-reported QOL questionnaire. Secondary outcomes include the evaluation of deficits and functional limitations via MG-specific clinical scores (Myasthenia Muscle Score and MG-Activities of Daily Living scale), muscle force and fatigue, respiratory function, free-living physical activity as well as evaluations of anxiety, depression, self-esteem and overall QOL with the WHO-QOL BREF questionnaire. Exercise workload will be assessed as well as multiple safety measures (ECG, biological markers, medication type and dosage and any disease exacerbation or crisis). DISCUSSION: This is the largest randomised controlled trial to date evaluating the benefits and tolerance of physical exercise in this patient population. The comprehensive evaluations using standardised outcome measures should provide much awaited information for both patients and the scientific community. This study is ongoing. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02066519 . Registered on 13 January 2014. PMID- 29347993 TI - Updated efficacy of avelumab in patients with previously treated metastatic Merkel cell carcinoma after >=1 year of follow-up: JAVELIN Merkel 200, a phase 2 clinical trial. AB - BACKGROUND: Merkel cell carcinoma (MCC) is a rare, aggressive skin cancer associated with poor survival outcomes in patients with distant metastatic disease (mMCC). In an initial analysis from JAVELIN Merkel 200, a phase 2, prospective, open-label, single-arm trial in mMCC, avelumab-a human anti programmed death-ligand 1 (PD-L1) monoclonal antibody-showed promising efficacy and a safety profile that was generally manageable and tolerable. Here, we report the efficacy of avelumab after >=1 year of follow-up in patients with distant mMCC that had progressed following prior chemotherapy for metastatic disease. PATIENTS AND METHODS: Patients received avelumab 10 mg/kg by 1-h intravenous infusion every 2 weeks until confirmed disease progression, unacceptable toxicity, or withdrawal. The primary endpoint was best overall response. Secondary endpoints included duration of response (DOR), progression-free survival (PFS), and overall survival (OS). RESULTS: Patients (N = 88) were followed for a minimum of 12 months. The confirmed objective response rate was 33.0% (95% CI, 23.3%-43.8%; complete response: 11.4%). An estimated 74% of responses lasted >=1 year, and 72.4% of responses were ongoing at data cutoff. Responses were durable, with the median DOR not yet reached (95% CI, 18.0 months not estimable), and PFS was prolonged; 1-year PFS and OS rates were 30% (95% CI, 21%-41%) and 52% (95% CI, 41%-62%), respectively. Median OS was 12.9 months (95% CI, 7.5-not estimable). Subgroup analyses suggested a higher probability of response in patients receiving fewer prior lines of systemic therapy, with a lower baseline disease burden, and with PD-L1-positive tumors; however, durable responses occurred irrespective of baseline factors, including tumor Merkel cell polyomavirus status. CONCLUSIONS: With longer follow-up, avelumab continues to show durable responses and promising survival outcomes in patients with distant mMCC whose disease had progressed after chemotherapy. TRIAL REGISTRATION: Clinicaltrials.gov identifier: NCT02155647. PMID- 29347995 TI - Index of the human papillomavirus (HPV) vaccine industry clinical study programmes and non-industry funded studies: a necessary basis to address reporting bias in a systematic review. AB - BACKGROUND: Unabridged access to drug industry and regulatory trial registers and data reduces reporting bias in systematic reviews and may provide a complete index of a drug's clinical study programme. Currently, there is no public index of the human papillomavirus (HPV) vaccine industry study programmes or a public index of non-industry funded studies. METHODS: By cross-verification via study programme enquiries to the HPV vaccine manufacturers and regulators and searches of trial registers and journal publication databases, we indexed clinical HPV vaccine studies as a basis to address reporting bias in a systematic review of clinical study reports. RESULTS: We indexed 206 clinical studies: 145 industry and 61 non-industry funded studies. One of the four HPV vaccine manufacturers (GlaxoSmithKline) provided information on its study programme. Most studies were cross-verified from two or more sources (160/206, 78%) and listed on regulatory or industry trial registers or journal publication databases (195/206, 95%)-in particular, on ClinicalTrials.gov (176/195, 90%). However, study results were only posted for about half of the completed studies on ClinicalTrials.gov (71/147, 48%). Two thirds of the industry studies had a study programme ID, manufacturer specific ID, and national clinical trial (NCT) ID (91/145, 63%). Journal publications were available in journal publication databases (the Cochrane Collaboration's Central Register of Controlled Trials, Google Scholar and PubMed) for two thirds of the completed studies (92/149, 62%). CONCLUSION: We believe we came close to indexing complete HPV vaccine study programmes, but only one of the four manufacturers provided information for our index and a fifth of the index could not be cross-verified. However, we indexed larger study programmes than those listed by major regulators (i.e., the EMA and FDA that based their HPV vaccine approvals on only half of the available trials). To reduce reporting bias in systematic reviews, we advocate the registration and publication of all studies and data in the public domain. PMID- 29347994 TI - The apelinergic system as an alternative to catecholamines in low-output septic shock. AB - Catecholamines, in concert with fluid resuscitation, have long been recommended in the management of septic shock. However, not all patients respond positively and controversy surrounding the efficacy-to-safety profile of catecholamines has emerged, trending toward decatecholaminization. Contextually, it is time to re examine the "maintaining blood pressure" paradigm by identifying safer and life saving alternatives. We put in perspective the emerging and growing knowledge on a promising alternative avenue: the apelinergic system. This target exhibits invaluable pleiotropic properties, including inodilator activity, cardio-renal protection, and control of fluid homeostasis. Taken together, its effects are expected to be greatly beneficial for patients in septic shock. PMID- 29347997 TI - OpenBiodiv-O: ontology of the OpenBiodiv knowledge management system. AB - BACKGROUND: The biodiversity domain, and in particular biological taxonomy, is moving in the direction of semantization of its research outputs. The present work introduces OpenBiodiv-O, the ontology that serves as the basis of the OpenBiodiv Knowledge Management System. Our intent is to provide an ontology that fills the gaps between ontologies for biodiversity resources, such as DarwinCore based ontologies, and semantic publishing ontologies, such as the SPAR Ontologies. We bridge this gap by providing an ontology focusing on biological taxonomy. RESULTS: OpenBiodiv-O introduces classes, properties, and axioms in the domains of scholarly biodiversity publishing and biological taxonomy and aligns them with several important domain ontologies (FaBiO, DoCO, DwC, Darwin-SW, NOMEN, ENVO). By doing so, it bridges the ontological gap across scholarly biodiversity publishing and biological taxonomy and allows for the creation of a Linked Open Dataset (LOD) of biodiversity information (a biodiversity knowledge graph) and enables the creation of the OpenBiodiv Knowledge Management System. A key feature of the ontology is that it is an ontology of the scientific process of biological taxonomy and not of any particular state of knowledge. This feature allows it to express a multiplicity of scientific opinions. The resulting OpenBiodiv knowledge system may gain a high level of trust in the scientific community as it does not force a scientific opinion on its users (e.g. practicing taxonomists, library researchers, etc.), but rather provides the tools for experts to encode different views as science progresses. CONCLUSIONS: OpenBiodiv O provides a conceptual model of the structure of a biodiversity publication and the development of related taxonomic concepts. It also serves as the basis for the OpenBiodiv Knowledge Management System. PMID- 29347998 TI - Radiation exposure in transcatheter patent ductus arteriosus closure: time to tune? AB - OBJECTIVES: The aims of this study were to describe radiation level at our institution during transcatheter patent ductus arteriosus occlusion and to evaluate the components contributing to radiation exposure. BACKGROUND: Transcatheter occlusion relying on X-ray imaging has become the treatment of choice for patients with patent ductus arteriosus. Interventionists now work hard to minimise radiation exposure in order to reduce risk of induced cancers. METHODS: We retrospectively reviewed all consecutive children who underwent transcatheter closure of patent ductus arteriosus from January 2012 to January 2016. Clinical data, anatomical characteristics, and catheterisation procedure parameters were reported. Radiation doses were analysed for the following variables: total air kerma, mGy; dose area product, Gy.cm2; dose area product per body weight, Gy.cm2/kg; and total fluoroscopic time. RESULTS: A total of 324 patients were included (median age=1.51 [Q1-Q3: 0.62-4.23] years; weight=10.3 [6.7-17.0] kg). In all, 322/324 (99.4%) procedures were successful. The median radiation doses were as follows: total air kerma: 26 (14.5-49.3) mGy; dose area product: 1.01 (0.56-2.24) Gy.cm2; dose area product/kg: 0.106 (0.061-0.185) Gy.cm2/kg; and fluoroscopic time: 2.8 (2-4) min. In multivariate analysis, a weight >10 kg, a ductus arteriosus width <2 mm, complications during the procedure, and a high frame rate (15 frames/second) were risk factors for an increased exposure. CONCLUSION: Lower doses of radiation can be achieved with subsequent recommendations: technical improvement, frame rate reduction, avoidance of biplane cineangiograms, use of stored fluoroscopy as much as possible, and limitation of fluoroscopic time. A greater use of echocardiography might even lessen the exposure. PMID- 29347999 TI - Whether you are a virus or a learned society-based virology journal, evolution is critical for success! PMID- 29347996 TI - The Apathy in Dementia Methylphenidate Trial 2 (ADMET 2): study protocol for a randomized controlled trial. AB - BACKGROUND: Alzheimer's disease (AD) is characterized not only by cognitive and functional decline, but also often by the presence of neuropsychiatric symptoms. Apathy, which can be defined as a lack of motivation, is one of the most prevalent neuropsychiatric symptoms in AD and typically leads to a worse quality of life and greater burden for caregivers. Treatment options for apathy in AD are limited, but studies have examined the use of the amphetamine, methylphenidate. The Apathy in Dementia Methylphenidate Trial (ADMET) found that treatment of apathy in AD with methylphenidate was associated with significant improvement in apathy in two of three outcome measures, some evidence of improvement in global cognition, and minimal adverse events. However, the trial only enrolled 60 participants who were followed for only 6 weeks. A larger, longer-lasting trial is required to confirm these promising findings. METHODS: The Apathy in Dementia Methylphenidate Trial 2 (ADMET 2) is a phase III, placebo-controlled, masked, 6 month, multi-center, randomized clinical trial targeted to enroll 200 participants with AD and apathy. Participants are randomly assigned 1:1 to 20 mg methylphenidate per day prepared as four over-encapsulated tablets or to matching placebo. The primary outcomes include (1) the mean difference in the Neuropsychiatric Inventory Apathy subscale scores measured as change from baseline to 6 months, and (2) the odds of having a given rating or better on the modified AD Cooperative Study Clinical Global Impression of Change ratings at month 6 compared with the baseline rating. Other outcomes include change in cognition, safety, and cost-effectiveness measured at monthly follow-up visits up to 6 months. DISCUSSION: Given the prevalence of apathy in AD and its impact on both patients and caregivers, an intervention to alleviate apathy would be of great benefit to society. ADMET 2 follows on the promising results from the original ADMET to evaluate the efficacy of methylphenidate as a treatment for apathy in AD. With a larger sample size and longer follow up, ADMET 2 is poised to confirm or refute the original ADMET findings. TRIAL REGISTRATION: ClinicalTrials.gov, NCT02346201 . Registered on 26 January 2015. PMID- 29348000 TI - Biodegradation and Metabolism of Tetrabromobisphenol A (TBBPA) in the Bioaugmented Activated Sludge Batch Bioreactor System by Heterotrophic and Nitrifying Bacteria. AB - Tetrabromobisphenol A [2,4'-isopropylidenebis(2,6-dibromophenol)] has been identified in wastewater samples collected from the Guelph municipal wastewater treatment plant (GWWTP). In order to assess the kinetics and metabolic mechanisms of the dissolved TBBPA, bench scale experiments were completed with batch bioreactors. The biodegradation test was conducted by taking aerobic sludge from the conventional activated sludge reactor (CAS) and membrane bioreactor (MBR), and bioaugmenting both reactors with soil based strains of Bacillus brevis and Bacillus pumilus. This novel biodegradation process showed that the CAS bioreactor had a biodegradation rate of 0.127 d-1, while the sludge from the MBR had a biodegradation rate of 0.171 d-1. This is the first reported aerobic biodegradation of TBBPA by heterotrophic and nitrifying bacteria in an activated sludge bioreactor system. A tentative biotransformation metabolic scheme for TBBPA biodegradation and metabolite formation has been proposed as well. PMID- 29348001 TI - Zr-Metal Organic Framework and Derivatives for Adsorptive and Photocatalytic Removal of Acid Dyes. AB - To investigate effects of modification of MOFs on removal of acid dyes via adsorption and photodegradation, zirconium-based MOF, UiO-66, and its derivatives were synthesized. UiO-66 derivatives were prepared by using amine (NH2) containing ligand and incorporating carbon nanotubes (CNTs) and reduced graphene oxide (RGO). During the synthesis UiO-66-NH2, UiO-66-CNT and UiO-66-RGO, were obtained, respectively. While UiO-66-NH2 showed the enhanced adsorption capacity for acid dyes owing to the electrostatic attraction, CNTs were found to be the most effective addition to enhance the adsorption of acid dyes. However, the addition of RGO in UiO-66 (to form UiO-66-RGO) exhibited the highest removal efficiency via photodegradation compared to UiO-66 and other derivatives probably attributed to its unique layered morphology. The presence of NH2, CNTs and RGO not only significantly improved the adsorption capacity for acid dyes but also enabled these UiO-66 derivatives to exhibit photocatalytic activity under visible light irradiation. PMID- 29348002 TI - Evaluation of a Gravity Flow Membrane Bioreactor for Treating Municipal Wastewater. AB - The biomass concentrator reactor (BCR), a gravity flow membrane bioreactor (MBR) design, was evaluated for use in treating a municipal wastewater stream. The BCR operates with less than 2.5 cm of pressure head and uses a 3 to 4 mm thick tortuous path membrane with pore size ranging from 18 to 28 MUm to achieve solids separation. A two-stage, aerobic/anoxic reactor was evaluated for the removal of chemical oxygen demand (COD), ammonia, total nitrogen, and solids separation. The reactor was fed 72 L/day, with a hydraulic retention time of 9.3 hours, and had a solids retention time of 20 days. The influent COD was reduced by 93%, whereas, influent ammonia was reduced below 0.1 mg/L and total nitrogen was reduced by 53.7%. A lack of readily biodegradable COD limited denitrification and thus total nitrogen removal. The reactor solids were retained completely in the reactor by the membrane for the duration of testing. PMID- 29348003 TI - The WaterHub at Emory University: Campus Resiliency through Decentralized Reuse. AB - In the spring of 2015, Emory University in Atlanta, GA, commissioned an innovative campuswide water reclamation and reuse system known as the WaterHub(r). Treating up to 400,000 gallons each day, the system can recycle the equivalent of two-thirds of the University's wastewater production and reduce the campus water footprint by up to 40 percent.One of the first district-scale water reuse systems in North America, the WaterHub mines wastewater from the campus sewer system and repurposes it for beneficial reuse on campus. In its first year of operation, the facility has treated more than 80 million gallons of campus wastewater and is expected to save millions of dollars in utility costs for the University over the next 20 years. The system represents a new age in commercial scale water management in which onsite, urban water reclamation facilities may be a new norm. PMID- 29348004 TI - Predictors and Clinical Outcomes of Next-Day Discharge After Minimalist Transfemoral Transcatheter Aortic Valve Replacement. AB - OBJECTIVES: This study sought to investigate predictors and safety of next-day discharge (NDD) after transcatheter aortic valve replacement (TAVR). BACKGROUND: Information about predictors and safety of NDD after TAVR is limited. METHODS: The study reviewed 663 consecutive patients who underwent elective balloon expandable TAVR (from July 2014 to July 2016) at our institution. We first determined predictors of NDD in patients who underwent minimalist transfemoral TAVR. After excluding cases with complications, we compared 30-day and 1-year outcomes between NDD patients and those with longer hospital stay using Cox regression adjusting for the Predicted Risk of Mortality provided by the Society of Thoracic Surgeons. The primary endpoint was the composite of mortality and readmission at 1 year. RESULTS: A total of 150 patients had NDD after TAVR and 210 patients had non-NDD. Mean age and the Society of Thoracic Surgeons Predicted Risk of Mortality were 80.7 +/- 8.8 years and 6.6 +/- 3.7%, respectively. Predictors of NDD were male sex (odds ratio [OR]: 2.02; 95% confidence interval [CI]: 1.28 to 3.18), absence of atrial fibrillation (OR: 1.62; 95% CI: 1.02 to 2.57), serum creatinine (OR: 0.71; 95% CI: 0.55 to 0.92), and age (OR: 0.95; 95% CI: 0.93 to 0.98). As expected, 84% of patients with complications had non-NDD. After excluding cases with complications, there was no difference in hazard rates of the 30-day composite outcome between NDD and non-NDD (hazard ratio: 0.62; 95% CI: 0.20 to 1.91), but the hazard of the composite outcome at 1 year was significantly lower in the NDD group (hazard ratio: 0.47; 95% CI: 0.27 to 0.81). This difference in the composite outcome can be explained by the lower hazard of noncardiovascular related readmission in the NDD group. CONCLUSIONS: Factors predicting NDD include male sex, absence of atrial fibrillation, lower serum creatinine, and younger age. When compared with patients without complications with a longer hospital stay, NDD appears to be safe, achieving similar 30-day and superior 1-year clinical outcomes. PMID- 29348005 TI - Next-Day Discharge After Transcatheter Aortic Valve Replacement: A Goal or a Consequence? PMID- 29348006 TI - Importance of Contrast Aortography With Lotus Transcatheter Aortic Valve Replacement: A Post Hoc Analysis From the RESPOND Post-Market Study. AB - OBJECTIVES: The aim of this post hoc analysis from the RESPOND (Repositionable Lotus Valve System-Post-Market Evaluation of Real World Clinical Outcomes) post market study was to assess the final implantation depth on the contrast aortogram after Lotus valve (Boston Scientific, Marlborough, Massachusetts) transcatheter aortic valve replacement (TAVR) and to correlate with permanent pacemaker implantation (PPI) and paravalvular leak (PVL). BACKGROUND: Contrast aortography allows for the assessment of implantation depth and PVL during and after TAVR. Previous reports suggested an association between final device position and rates of PPI and PVL. METHODS: The RESPOND study was a prospective, open-label, single arm study in 41 centers evaluating outcomes after Lotus TAVR in routine clinical practice. Aortograms were collected at the Erasmus Medical Center and analyzed by researchers who were blinded to clinical outcomes. The primary analysis correlated implantation depth with PPI and PVL and required aortograms in a coaxial projection. The relation between implantation depth and need for PPI was assessed by multivariate logistic regression, adjusting for pre-defined confounders. A secondary analysis compared PVL analysis by contrast aortography with transthoracic echocardiography (TTE) performed by the independent core laboratory. RESULTS: A total of 724 angiographic studies were included in this analysis. Mean Lotus implantation depth was 6.67 +/- 2.19 mm. The overall PPI rate was 35%. PPI rate was lower with shallow implants (<6.5 mm: 21% vs. >=6.5 mm: 41%; p < 0.001). After adjustment for confounders, implantation depth independently predicted need for PPI (odds ratio per 1-mm increment in depth: 1.200; 95% confidence interval: 1.091 to 1.319; p = 0.002). More than trivial PVL was present in 23% by contrast aortography and in 8% by TTE. Implantation depth was not correlated with PVL by contrast aortography or TTE (p = 0.342 and p = 0.149, respectively). PVL grading by contrast aortography and TTE was concordant in 77%. CONCLUSIONS: In this post hoc analysis of the RESPOND study PPI was highly correlated with implantation depth, whereas PVL was not. Higher Lotus implantation may reduce need for PPI. PMID- 29348007 TI - Assessing Implant Depth Using Aortography in Transcatheter Aortic Valve Replacement: What You See May Not Be What You Get. PMID- 29348009 TI - Valve in Valve for Failed Surgical Bioprostheses: Not for Everyone! PMID- 29348008 TI - Impact of Pre-Existing Prosthesis-Patient Mismatch on Survival Following Aortic Valve-in-Valve Procedures. AB - OBJECTIVES: The aim of this study was to determine whether the association of small label size of the surgical valve with increased mortality after transcatheter valve-in-valve (ViV) implantation is, at least in part, related to pre-existing prosthesis-patient mismatch (PPM) (i.e., a bioprosthesis that is too small in relation to body size). BACKGROUND: Transcatheter ViV implantation is an alternative for the treatment of patients with degenerated bioprostheses. Small label size of the surgical valve has been associated with increased mortality after ViV implantation. METHODS: Data from 1,168 patients included in the VIVID (Valve-in-Valve International Data) registry were analyzed. Pre-existing PPM of the surgical valve was determined using a reference value of effective orifice area for each given model and size of implanted prosthetic valve indexed for body surface area. Severe PPM was defined according to the criteria proposed by the Valve Academic Research Consortium 2: indexed effective orifice area <0.65 cm2/m2 if body mass index is <30 kg/m2 and <0.6 cm2/m2 if BMI is >=30 kg/m2. The primary study endpoint was 1-year mortality. RESULTS: Among the 1,168 patients included in the registry, 89 (7.6%) had pre-existing severe PPM. Patients with severe PPM had higher 30-day (10.3%, p = 0.01) and 1-year (unadjusted: 28.6%, p < 0.001; adjusted: 19.3%, p = 0.03) mortality rates compared with patients with no severe PPM (4.3%, 11.9%, and 10.9%, respectively). After adjusting for surgical valve label size, Society of Thoracic Surgeons score, renal failure, diabetes, and stentless surgical valves, presence of pre-existing severe PPM was associated with increased risk for 1-year mortality (odds ratio: 1.88; 95% confidence interval: 1.07 to 3.28; p = 0.03). Patients with severe PPM also more frequently harbored high post-procedural gradients (mean gradient >=20 mm Hg). CONCLUSIONS: Pre-existing PPM of the failed surgical valve is strongly and independently associated with increased risk for mortality following ViV implantation. PMID- 29348010 TI - Early Outcomes With the Evolut PRO Repositionable Self-Expanding Transcatheter Aortic Valve With Pericardial Wrap. AB - OBJECTIVES: This study sought to evaluate the Medtronic Evolut PRO Transcatheter Aortic Valve System in patients with severe symptomatic aortic stenosis. BACKGROUND: A next-generation self-expanding transcatheter aortic valve was designed with an external pericardial wrap with the intent to reduce paravalvular leak while maintaining the benefits of a low-profile, self-expanding, and repositionable supra-annular valve. METHODS: The Medtronic Evolut PRO Clinical Study included 60 patients undergoing transcatheter aortic valve replacement with the Evolut PRO valve at 8 investigational sites in the United States. Clinical outcomes at 30 days were evaluated using Valve Academic Research Consortium-2 criteria. The 2 primary safety endpoints were the incidence of all-cause mortality at 30 days and the incidence of disabling stroke at 30 days. The primary efficacy endpoint was the proportion of patients with no or trace prosthetic valve regurgitation at 30 days. An independent echocardiographic core laboratory (Mayo Clinic, Rochester, Minnesota) was used to adjudicate all echocardiographic assessments. RESULTS: All 60 patients received the Evolut PRO valve. At 30 days, 1 patient (1.7%) died and 1 patient (1.7%) experienced a nonfatal disabling stroke. Paravalvular regurgitation at 30 days was absent or trace in 72.4% of patients and was mild in the remainder of patients, with no patients having worse than mild paravavlular leak. The mean atrioventricular gradient was 6.4 +/- 2.1 mm Hg and effective orifice area was 2.0 +/- 0.5 cm2 at 30 days. CONCLUSIONS: The safety and efficacy results of this study support the use of the Evolut PRO System for the treatment of severe symptomatic aortic stenosis in patients who are at increased surgical risk, resulting in excellent hemodynamics and minimal paravalvular leak (The Medtronic TAVR 2.0 US Clinical Study; NCT02738853). PMID- 29348011 TI - Sealing the Achilles Heel of Transcatheter Aortic Valve Replacement? PMID- 29348012 TI - Coronary Embolus: An Underappreciated Cause of Acute Coronary Syndromes. AB - Coronary embolism is the underlying cause of 3% of acute coronary syndromes but is often not considered in the differential of acute coronary syndromes. It should be suspected in the case of high thrombus burden despite a relatively normal underlying vessel or recurrent coronary thrombus. Coronary embolism may be direct (from the aortic valve or left atrial appendage), paroxysmal (from the venous circulation through a patent foramen ovale), or iatrogenic (following cardiac intervention). Investigations include transesophageal echocardiography to assess the left atrial appendage and atrial septum and continuous electrocardiographic monitoring to assess for paroxysmal atrial fibrillation. The authors review the historic and contemporary published data about this important cause of acute coronary syndromes. The authors propose an investigation and management strategy for work-up and anticoagulation strategy for patients with suspected coronary embolism. PMID- 29348014 TI - Bioresorbable Vascular Scaffolds in In-Stent Restenosis. PMID- 29348013 TI - Dose-Dependent Cardioprotection of Moderate (32 degrees C) Versus Mild (35 degrees C) Therapeutic Hypothermia in Porcine Acute Myocardial Infarction. AB - OBJECTIVES: The study investigated whether a dose response exists between myocardial salvage and the depth of therapeutic hypothermia. BACKGROUND: Cardiac protection from mild hypothermia during acute myocardial infarction (AMI) has yielded equivocal clinical trial results. Rapid, deeper hypothermia may improve myocardial salvage. METHODS: Swine (n = 24) undergoing AMI were assigned to 3 reperfusion groups: normothermia (38 degrees C) and mild (35 degrees C) and moderate (32 degrees C) hypothermia. One-hour anterior myocardial ischemia was followed by rapid endovascular cooling to target reperfusion temperature. Cooling began 30 min before reperfusion. Target temperature was reached before reperfusion and was maintained for 60 min. Infarct size (IS) was assessed on day 6 using cardiac magnetic resonance, triphenyl tetrazolium chloride, and histopathology. RESULTS: Triphenyl tetrazolium chloride area at risk (AAR) was equivalent in all groups (p = 0.2), but 32 degrees C exhibited 77% and 91% reductions in IS size per AAR compared with 35 degrees C and 38 degrees C, respectively (AAR: 38 degrees C, 45 +/- 12%; 35 degrees C, 17 +/- 10%; 32 degrees C, 4 +/- 4%; p < 0.001) and comparable reductions per LV mass (LV mass: 38 degrees C, 14 +/- 5%; 35 degrees C, 5 +/- 3%; 32 degrees C 1 +/- 1%; p < 0.001). Importantly, 32 degrees C showed a lower IS AAR (p = 0.013) and increased immunohistochemical granulation tissue versus 35 degrees C, indicating higher tissue salvage. Delayed-enhancement cardiac magnetic resonance IS LV also showed marked reduction at 32 degrees C (38 degrees C: 10 +/- 4%, p < 0.001; 35 degrees C: 8 +/- 3%; 32 degrees C: 3 +/- 2%, p < 0.001). Cardiac output on day 6 was only preserved at 32 degrees C (reduction in cardiac output: 38 degrees C, -29 +/- 19%, p = 0.041; 35 degrees C: -17 +/- 33%; 32 degrees C: -1 +/- 28%, p = 0.041). Using linear regression, the predicted IS reduction was 6.7% (AAR) and 2.1% (LV) per every 1 degrees C reperfusion temperature decrease. CONCLUSIONS: Moderate (32 degrees C) therapeutic hypothermia demonstrated superior and near-complete cardioprotection compared with 35 degrees C and control, warranting further investigation into clinical applications. PMID- 29348015 TI - Reply: Bioresorbable Vascular Scaffolds in In-Stent Restenosis. PMID- 29348016 TI - Effect of Modern Dose-Reduction Technology on the Exposure of Interventional Cardiologists to Radiation in the Catheterization Laboratory. PMID- 29348017 TI - A Pilot Study for Left Atrial Appendage Occlusion Guided by 3-Dimensional Rotational Angiography Alone. PMID- 29348018 TI - Myocardial Inflammation Predicts Remodeling and Neuroinflammation After Myocardial Infarction. AB - BACKGROUND: The local inflammatory tissue response after acute myocardial infarction (MI) determines subsequent healing. Systemic interaction may induce neuroinflammation as a precursor to neurodegeneration. OBJECTIVES: This study sought to assess the influence of MI on cardiac and brain inflammation using noninvasive positron emission tomography (PET) of the heart-brain axis. METHODS: After coronary artery ligation or sham surgery, mice (n = 49) underwent serial whole-body PET imaging of the mitochondrial translocator protein (TSPO) as a marker of activated macrophages and microglia. Patients after acute MI (n = 3) were also compared to healthy controls (n = 9). RESULTS: Infarct mice exhibited elevated myocardial TSPO signal at 1 week versus sham (percent injected dose per gram: 8.0 +/- 1.6 vs. 4.8 +/- 0.9; p < 0.001), localized to activated CD68+ inflammatory cells in the infarct. Early TSPO signal predicted subsequent left ventricular remodeling at 8 weeks (rpartial = -0.687; p = 0.001). In parallel, brain TSPO signal was elevated at 1 week (1.7 +/- 0.2 vs. 1.4 +/- 0.2 for sham; p = 0.017), localized to activated microglia. After interval decline at 4 weeks, progressive heart failure precipitated a second wave of neuroinflammation (1.8 +/ 0.2; p = 0.005). TSPO was concurrently up-regulated in remote cardiomyocytes at 8 weeks (8.8 +/- 1.7, p < 0.001) without inflammatory cell infiltration, suggesting mitochondrial impairment. Angiotensin-converting enzyme inhibitor treatment lowered acute inflammation in the heart (p = 0.003) and brain (p = 0.06) and improved late cardiac function (p = 0.05). Patients also demonstrated elevation of cardiac TSPO signal in the infarct territory, paralleled by neuroinflammation versus controls. CONCLUSIONS: The brain is susceptible to acute MI and chronic heart failure. Immune activation may interconnect heart and brain dysfunction, a finding that provides a foundation for strategies to improve heart and brain outcomes. PMID- 29348019 TI - Imaging Dynamic Heart-Brain Interactions: Getting to the Heart of the Matter, Gray and White. PMID- 29348021 TI - Learning From Patients With Ultrarare Conditions: Cholesterol Hoof Beats. PMID- 29348020 TI - Autosomal Recessive Hypercholesterolemia: Long-Term Cardiovascular Outcomes. AB - BACKGROUND: Autosomal recessive hypercholesterolemia (ARH) is a rare lipid disorder characterized by premature atherosclerotic cardiovascular disease (ASCVD). There are sparse data for clinical management and cardiovascular outcomes in ARH. OBJECTIVES: Evaluation of changes in lipid management, achievement of low-density lipoprotein cholesterol (LDL-C) goals and cardiovascular outcomes in ARH. METHODS: Published ARH cases were identified by electronic search. All corresponding authors and physicians known to treat these patients were asked to provide follow-up information, using a standardized protocol. RESULTS: We collected data for 52 patients (28 females, 24 males; 31.1 +/- 17.1 years of age; baseline LDL-C: 571.9 +/- 171.7 mg/dl). During a mean follow-up of 14.1 +/- 7.3 years, there was a significant increase in the use of high-intensity statin and ezetimibe in combination with lipoprotein apheresis; in 6 patients, lomitapide was also added. Mean LDL-C achieved at nadir was 164.0 +/- 85.1 mg/dl (-69.6% from baseline), with a better response in patients taking lomitapide (-88.3%). Overall, 23.1% of ARH patients reached LDL-C of <100 mg/dl. During follow-up, 26.9% of patients had incident ASCVD, and 11.5% had a new diagnosis of aortic valve stenosis (absolute risk per year of 1.9% and 0.8%, respectively). No incident stroke was observed. Age (>=30 years) and the presence of coronary artery disease at diagnosis were the major predictors of incident ASCVD. CONCLUSIONS: Despite intensive treatment, LDL-C in ARH patients remains far from targets, and this translates into a poor long-term cardiovascular prognosis. Our data highlight the importance of an early diagnosis and treatment and confirm the fact that an effective treatment protocol for ARH is still lacking. PMID- 29348022 TI - Identifying and Treating Young Patients at Risk for Cardiovascular Events. PMID- 29348023 TI - Impaired Recovery of Left Ventricular Function in Patients With Cardiomyopathy and Left Bundle Branch Block. AB - BACKGROUND: Patients with left bundle branch block (LBBB) often respond to cardiac resynchronization therapy (CRT) with left ventricular ejection fraction (LVEF) improvement. Guideline-directed medical therapy (GDMT), not CRT, is first line therapy for patients with reduced LVEF with LBBB. However, there are little data on how patients with reduced LVEF and LBBB respond to GDMT. OBJECTIVES: This study examined patients with cardiomyopathy and sought to assess rates of LVEF improvement for patients with LBBB compared to other QRS morphologies. METHODS: Using data from the Duke Echocardiography Laboratory Database, the study identified patients with baseline electrocardiography and LVEF <=35% who had a follow-up LVEF 3 to 6 months later. The study excluded patients with severe valve disease, a cardiac device, left ventricular assist device, or heart transplant. QRS morphology was classified as LBBB, QRS duration <120 ms (narrow QRS duration), or a wide QRS duration >=120 ms but not LBBB. Analysis of variance testing compared mean change in LVEF among the 3 groups with adjustment for significant comorbidities and GDMT. RESULTS: There were 659 patients that met the criteria: 111 LBBB (17%), 59 wide QRS duration >=120 ms but not LBBB (9%), and 489 narrow QRS duration (74%). Adjusted mean increase in LVEF over 3 to 6 months in the 3 groups was 2.03%, 5.28%, and 8.00%, respectively (p < 0.0001). Results were similar when adjusted for interim revascularization and myocardial infarction. Comparison of mean LVEF improvement between patients with LBBB on GDMT and those not on GDMT showed virtually no difference (3.50% vs. 3.44%). The combined endpoint of heart failure hospitalization or mortality was highest for patients with LBBB. CONCLUSIONS: LBBB is associated with a smaller degree of LVEF improvement compared with other QRS morphologies, even with GDMT. Some patients with LBBB may benefit from CRT earlier than guidelines currently recommend. PMID- 29348024 TI - Cardiomyopathy and Left Bundle Branch Block: A Farewell to Drugs? PMID- 29348026 TI - Imaging the Intersection of Oxidative Stress, Lipids, and Inflammation: Progress Toward Personalized Care of Atherosclerosis. PMID- 29348025 TI - PET/MR Imaging of Malondialdehyde-Acetaldehyde Epitopes With a Human Antibody Detects Clinically Relevant Atherothrombosis. AB - BACKGROUND: Oxidation-specific epitopes (OSEs) are proinflammatory, and elevated levels in plasma predict cardiovascular events. OBJECTIVES: The purpose of this study was to develop novel positron emission tomography (PET) probes to noninvasively image OSE-rich lesions. METHODS: An antigen-binding fragment (Fab) antibody library was constructed from human fetal cord blood. After multiple rounds of screening against malondialdehyde-acetaldehyde (MAA) epitopes, the Fab LA25 containing minimal nontemplated insertions in the CDR3 region was identified and characterized. In mice, pharmacokinetics, biodistribution, and plaque specificity studies were performed with Zirconium-89 (89Zr)-labeled LA25. In rabbits, 89Zr-LA25 was used in combination with an integrated clinical PET/magnetic resonance (MR) system. 18F-fluorodeoxyglucose PET and dynamic contrast-enhanced MR imaging were used to evaluate vessel wall inflammation and plaque neovascularization, respectively. Extensive ex vivo validation was carried out through a combination of gamma counting, near infrared fluorescence, autoradiography, immunohistochemistry, and immunofluorescence. RESULTS: LA25 bound specifically to MAA epitopes in advanced and ruptured human atherosclerotic plaques with accompanying thrombi and in debris from distal protection devices. PET/MR imaging 24 h after injection of 89Zr-LA25 showed increased uptake in the abdominal aorta of atherosclerotic rabbits compared with nonatherosclerotic control rabbits, confirmed by ex vivo gamma counting and autoradiography. 18F fluorodeoxyglucose PET, dynamic contrast-enhanced MR imaging, and near-infrared fluorescence signals were also significantly higher in atherosclerotic rabbit aortas compared with control aortas. Enhanced liver uptake was also noted in atherosclerotic animals, confirmed by the presence of MAA epitopes by immunostaining. CONCLUSIONS: 89Zr-LA25 is a novel PET radiotracer that may allow noninvasive phenotyping of high-risk OSE-rich lesions. PMID- 29348027 TI - Implications of Underlying Mechanisms for the Recognition and Management of Diabetic Cardiomyopathy. AB - Heart failure is a complex clinical syndrome, the incidence and prevalence of which is increased in diabetes mellitus, pre-diabetes, and obesity. Although this may arise from underlying coronary artery disease, it often occurs in the absence of significant major epicardial coronary disease, and most commonly manifests as heart failure with preserved ejection fraction. Despite epidemiological evidence linking diabetes to heart failure incidence and outcome, the presence of a distinct primary "diabetic" cardiomyopathy has been difficult to prove, because the link between diabetes and heart failure is confounded by hypertension, microvascular dysfunction, and autonomic neuropathy. Nonetheless, several mechanistic associations at systemic, cardiac, and cellular/molecular levels explain different aspects of myocardial dysfunction, including impaired cardiac relaxation, compliance, and contractility. This review seeks to describe recent advances and limitations pertinent to integrating molecular mechanisms, clinical screening, and potential therapeutic avenues for this condition. PMID- 29348028 TI - Antithrombotic Therapy in Peripheral Artery Disease: Generating and Translating Evidence Into Practice. AB - Atherosclerotic cardiovascular (CV) disease remains a major health concern affecting more than 200 million adults worldwide, and lower extremity peripheral artery disease (PAD) is associated with significant morbidity and mortality. Treatment strategies to reduce the burden of major adverse CV events and limb events have mainly involved the use of antiplatelet and statin medications. Unlike other types of atherosclerotic CV disease, the evidence base is not well developed for therapies in patients with PAD. Recently, studies from subgroups of patients with PAD and a large clinical trial of PAD patients have been published, signaling a burgeoning interest in studying this higher risk population. This review outlines the inherent CV risks of patients with PAD, risk reduction strategies, emerging clinical trial data, and opportunities for the CV community to generate evidence in real-world settings and translate evidence into practice as new therapies become available. PMID- 29348029 TI - Inorganic Nitrite Selectively Dilates Epicardial Coronary Arteries. PMID- 29348030 TI - Cardiovascular Mortality Reduction With Empagliflozin in Patients With Type 2 Diabetes and Cardiovascular Disease. PMID- 29348031 TI - Left Ventricular Systolic Dysfunction in Transplantation Donor Hearts: Another Takotsubo Phenotype? PMID- 29348032 TI - Reply: Transient Wall Motion Abnormalities in Donor Hearts With Improved Left Ventricular Systolic Dysfunction: Takotsubo Revisited? PMID- 29348033 TI - Myocardial Dysfunction Following Brain Death. PMID- 29348034 TI - The new Brazilian legislation on access to the biodiversity (Law 13,123/15 and Decree 8772/16). PMID- 29348035 TI - Alzheimer's disease, cellular prion protein, and dolphins. PMID- 29348036 TI - Increasing Traction for Discovery: The Research Domain Criteria Framework and Neurodevelopmental Disorders. PMID- 29348037 TI - Obligatory Processing of Task-Irrelevant Stimuli: A Hallmark of Autistic Cognitive Style Within and Beyond the Diagnosis. PMID- 29348038 TI - Children With Fragile X Syndrome Display Threat-Specific Biases Toward Emotion. AB - BACKGROUND: Fragile X syndrome (FXS) is the most common form of inherited intellectual disability. FXS is caused by a silencing of the FMR1 gene that results in a loss or absence of the gene's protein product, fragile X mental retardation protein. The phenotype of FXS is consistently associated with heightened anxiety, although no previous study has investigated attentional bias toward threat, a hallmark of anxiety disorders, in individuals with FXS. METHODS: The current study employed a passive-viewing eye-tracking version of the dot probe task to investigate attentional biases toward emotional faces in young children with FXS (n = 47) and without FXS (n = 94). RESULTS: We found that the FXS group showed a significantly greater bias toward threatening emotions than toward positive emotions. This threat specificity was not seen in either a mental age-matched group or a chronological age-matched group of typically developing children. Unlike the typically developing groups, the FXS group showed no bias toward positive emotion. CONCLUSIONS: The current study shows that children with FXS have a significant bias toward threatening information, an attentional profile that has been linked with anxiety. It also supports the use of eye tracking methodology to index neural and attentional responses in young children with FXS. PMID- 29348039 TI - Face Processing Measures of Social Cognition: A Dimensional Approach to Developmental Psychopathology. AB - BACKGROUND: Social cognition impairments in neurodevelopmental disorders impact functioning. Face processing is the most extensively studied aspect of social cognition, commonly indexing this construct in neuropsychiatric disorders compared with typically developing youths. Applying social cognition measures as a Research Domain Criteria concept in the clinical arena requires establishing cutoffs for intervention and identifying vulnerability for psychopathology across disorders. This can be accomplished by comparing extreme performers across multiple clinical symptom features. METHODS: The Philadelphia Neurodevelopmental Cohort (N = 9498), a community sample of youths (8-21 years old), was assessed with a structured interview (Kiddie Schedule for Affective Disorders and Schizophrenia). The Penn Computerized Neurocognitive Battery was administered measuring accuracy and response time on Executive, Episodic Memory, Complex Cognition, and Social Cognition domains. We parsed participants by performance on social cognition into tertiles and examined their neurocognitive and clinical profiles. RESULTS: The top social cognition group outperformed the bottom group in face memory and complex reasoning. Concerning symptoms, the top performing group did not differ from the middle group, but the bottom performing group had higher externalizing and psychosis symptoms. There were sex differences in social cognition and symptom profiles but no sex * performance or sex * diagnosis * domain interactions. CONCLUSIONS: Social cognition is supported by strong face memory and complex reasoning skills. Poor performance portends more severe externalizing and psychosis symptoms. That average performance is sufficient for normative symptomatology suggests that interventions aimed at ameliorating social cognition deficits, as measured here, could be effective in normalizing level of symptoms. PMID- 29348040 TI - Negative Valence in Autism Spectrum Disorder: The Relationship Between Amygdala Activity, Selective Attention, and Co-occurring Anxiety. AB - BACKGROUND: A critical agenda of the National Institutes of Health Research Domain Criteria (RDoC) initiative is establishing whether domains within the RDoC matrix are truly transdiagnostic. Rates of anxiety disorders are elevated in autism spectrum disorder (ASD), but it is unclear whether the same mechanisms contribute to anxiety in individuals with and without ASD. As changes in selective attention are a hallmark of anxiety disorders in non-ASD samples, the identification of these changes in ASD would support the transdiagnostic nature of anxiety. METHODS: This functional magnetic resonance imaging study focused on the negative valence domain from RDoC (manifest as anxiety symptoms) in youth with ASD (n = 38) and typically developing control participants (n = 25). The task required selective attention toward and away from social information (faces) with negative and neutral affect. Participants underwent in-depth characterization for both anxiety and ASD symptoms. RESULTS: Dimensional and categorical measures of anxiety were significantly related to increased amygdala activation-evidence of enhanced attentional capture by social information. CONCLUSIONS: This pattern fits with decades of research among non-ASD samples using selective attention and attentional bias paradigms, suggesting that anxiety in ASD shares mechanisms with anxiety alone. Overall, results from this study support the transdiagnostic nature of the negative valence domain from RDoC and increase the likelihood that anxiety in ASD should be responsive to interventions targeting maladaptive responses to negative information. PMID- 29348042 TI - Zinc-aluminum oxide solid solution nanosheets obtained by pyrolysis of layered double hydroxide as the photoanodes for dye-sensitized solar cells. AB - Due to the superiority of metal-doped ZnO compared to TiO2, the Zn-M (M = Al3+, Ga3+, Cr3+, Ti4+, Ce4+) mixed metal oxide solid solutions have been extensively studied for photocatalytic and photovoltaic applications. In this work, a systematic research has proceeded for the preparation of a zinc-aluminum oxide semiconductor as a photoanode for the dye-sensitized solar cells (DSSCs) by a simple pyrolysis route with the Zn-Al layered double hydroxide (LDH) as a precursor. The Zn-Al oxide solid solution has been applied for DSSCs as an electron acceptor, which is used to study the influence of different Al content and sintering temperature on the device efficiency. Finally, the Zn-Al oxide solid solution with calcination temperature 600 degrees C and Al 27 at.% content exhibits the best performance. The photoelectric efficiency improved 100 times when the Al3+ content decreased from 44 to 27 at.%. The ZnxAlyO solid solution show a reasonable efficiency as photoanode materials in DSSCs, with the best preliminary performance reported so far, and shows its potential application for the photovoltaic devices. PMID- 29348041 TI - Executive Dysfunction in Autism Spectrum Disorder Is Associated With a Failure to Modulate Frontoparietal-insular Hub Architecture. AB - BACKGROUND: Comorbid executive dysfunction in autism spectrum disorder (ASD) is a barrier to adaptive functioning, despite remittance of core social-communication symptoms. Network models of ASD address core symptoms but not comorbid executive dysfunction. Following recent demonstrations in healthy adults that, with increasing executive demands, hubs embedded within frontoparietal-insular control networks interact with a more diverse set of networks, we hypothesized that the capability of hubs to do so is perturbed in ASD and predicts executive behavior. METHODS: Seventy-five 7- to 13-year-old children with ASD (n = 35) and age- and IQ-matched typically developing control subjects (n = 40) completed both a resting-state and a selective attention task functional magnetic resonance imaging session. We assessed changes in the participation coefficient, a graph theory metric indexing hubness, of 264 brain regions comprising 12 functional networks between the two sessions. Parent reported executive impairment in everyday life was measured using the Behavior Rating Inventory of Executive Function. RESULTS: The participation coefficient of the frontoparietal-insular cortex, including core nodes of the frontoparietal control and salience networks, significantly increased in typically developing children but not in children with ASD during the task relative to rest. Change in frontoparietal-insular participation coefficient predicted Behavior Rating Inventory of Executive Function scores indexing the ability to attend to task-oriented output, plan and organize, and sustain working memory. CONCLUSIONS: Our results suggest that executive impairments in ASD emerge from a failure of frontoparietal-insular control regions to function as adaptive and integrative hubs in the brain's functional network architecture. Our results also demonstrate the utility of examining dynamic network function for elucidating potential biomarkers for disorders with comorbid executive dysfunction. PMID- 29348043 TI - Superhydrophobic coatings with high repellency to daily consumed liquid foods based on food grade waxes. AB - The applications of superhydrophobic coatings in daily life are receiving increasing attention. Here, we report a general approach for preparing superhydrophobic coatings with high repellency to daily consumed liquid foods based on food grade waxes. The coatings are prepared by spray-coating the homogeneous wax suspensions in ethanol followed by annealing at 40 degrees C. The wax suspensions are formed by the heating dissolution-cooling precipitation ultrasonication process thanks to the unique solubility of the waxes in ethanol. Ultrasonication of the wax suspension is helpful to improve superhydrophobicity by reducing the size of the wax microplatelets. Annealing at 40 degrees C could enhance mechanical stability of the coatings. The coatings are superhydrophobic with a water contact angle of 158.2 degrees and a sliding angle of 7.3 degrees . The coatings are resistant to intense water jetting and immersion in corrosive aqueous solutions. In addition, the coatings show excellent anti-adhesive properties for various liquid foods including cola, honey, milk and yoghourt. Moreover, the coatings are applicable onto different substrates (e.g., glass slide, PET plate and polyethylene plate) and could be prepared using different waxes (e.g., paraffin wax, beeswax and microcrystalline wax). We believe that the wax superhydrophobic coatings could find applications in various fields such as anti-adhesion of liquid foods, fruit preservation and anti-bioadhesion, etc. PMID- 29348044 TI - Wetting of flat gradient surfaces. AB - Gradient, chemically modified, flat surfaces enable directed transport of droplets. Calculation of apparent contact angles inherent for gradient surfaces is challenging even for atomically flat ones. Wetting of gradient, flat solid surfaces is treated within the variational approach, under which the contact line is free to move along the substrate. Transversality conditions of the variational problem give rise to the generalized Young equation valid for gradient solid surfaces. The apparent (equilibrium) contact angle of a droplet, placed on a gradient surface depends on the radius of the contact line and the values of derivatives of interfacial tensions. The linear approximation of the problem is considered. It is demonstrated that the contact angle hysteresis is inevitable on gradient surfaces. Electrowetting of gradient surfaces is discussed. PMID- 29348045 TI - Supplementary motor area-primary motor cortex facilitation in younger but not older adults. AB - Growing evidence implicates a decline in white matter integrity in the age related decline in motor control. Functional neuroimaging studies show significant associations between functional connectivity in the cortical motor network, including the supplementary motor area (SMA), and motor performance. Dual-coil transcranial magnetic stimulation studies show facilitatory connections between SMA and the primary motor cortex (M1) in younger adults. Here, we investigated whether SMA-M1 facilitation is affected by age and whether the strength of SMA-M1 facilitation is associated with bilateral motor control. Dual coil transcranial magnetic stimulation was used to measure SMA-M1 connectivity in younger (N = 20) and older adults (N = 18), and bilateral motor control was measured with the assembly subtest of the Purdue Pegboard and clinical measures of dynamic balance. SMA-M1 facilitation was seen in younger but not older adults, and a significant positive association was found between SMA-M1 facilitation and bimanual performance. These results show that SMA-M1 facilitation is reduced in older adults compared to younger adults and provide evidence of the functional importance of SMA-M1 facilitation. PMID- 29348046 TI - Synthesis of sulfamide analogues of deoxthymidine monophosphate as potential inhibitors of mycobacterial cell wall biosynthesis. AB - The recently discovered enzyme Mycobacterium tuberculosis thymidine monophosphate kinase (TMPKmt), which catalyses the phosphorylation of deoxythymidine monophosphate (dTMP) to give deoxythymidine diphosphate (dTDP), is indispensable for the growth and survival of M. tuberculosis as it plays an essential role in DNA synthesis. Inhibition of TMPKmt is an attractive avenue for the development of novel anti-tuberculosis agents. Based on the premise that sulfamide may be a suitable isostere of phosphate, deoxythymidine analogues comprising various substituted sulfamides at C5' were modelled in silico into the active site of TMPKmt (PDB accession code: 1N5K) using induced-fit docking methods. A selection of modelled compounds was synthesized, and their activity as inhibitors of TMPKmt was evaluated. Three compounds showed competitive inhibition of TMPKmt in the micromolar range (10-50 MUM). Compounds were tested in vitro for anti mycobacterial activity against M. smegmatis: three compounds showed weak anti mycobacterial activity (MIC 250 MUg/mL). PMID- 29348047 TI - Effects of inorganic ions and natural organic matter on the aggregation of nanoplastics. AB - The aggregation of nanoplastics (NPs) is a key issue in understanding the dynamic nature of NPs in the environment. The aggregation of NPs under various environmental conditions has not yet been studied. We investigated the influences of inorganic ions and natural organic matter (NOM) on polystyrene (PS) NPs aggregation in solutions. Results showed that PS NPs remained stable in wide ionic strength solutions of NaCl (1-100 mM) and CaCl2 (0.1-15 mM), and only in low ionic strength FeCl3 solutions (0.01 mM). However, obvious PS NPs aggregation was observed in FeCl3 solutions with an increase in ionic strength (0.1 and 1 mM). Moreover, NOM had a negligible effect on PS NPs aggregation in all ionic strengths of NaCl and CaCl2 solutions and in low ionic strength FeCl3 solutions (0.01 mM). However, NOM reduced PS NPs aggregation in an intermediate ionic strength FeCl3 (0.1 mM) solution and increased aggregation in a high ionic strength FeCl3 (1 mM) solution. Based on the theoretical analysis of interaction forces among PS NPs, the Derjaguin-Landau-Verwey-Overbeek force was a contributor governing PS NPs aggregation either in the absence or presence of NOM. In addition, other factors, including electrostatic heterogeneity of PS NPs surfaces, steric repulsion induced by NOM, and clusters formed via bridging effect in the presence of NOM also contributed to altered PS NPs aggregation under selected conditions. The PS NPs-NOM clusters were directly observed using a cryogenic scanning electron microscope. PMID- 29348048 TI - Identification of number and type of cations in water-soluble Cs+ and Na+ calix[4]arene-bis-crown-6 complexes by using ESI-TOF-MS. AB - The treatment of cesium-contaminated wastewater has become one of the biggest issues. The selective Cs+ removal from wastewater containing competitive alkali metal ions such as Na+ is desired to reduce the volume of sludge. Therefore, the present work focused on water-soluble calix[4]arene-bis-crown-6 (W-BisC6) to selectively capture Cs+. For characterization of the complex, UV-vis spectroscopy is commonly used, however, due to the limited availability of information it can be hard to quickly identify the specific structures of some complexes. In this work, the electrospray ionization time of flight spectrometry (ESI-TOF-MS) is successfully utilized to identify the number and type of cations in W-BisC6 cation complexes. ESI-TOF-MS accurately recognized 4 types of complex (W-BisC6 Na+, W-BisC6-Cs+, W-BisC6-2Na+, W-BisC6-Na+-Cs+), and the experimental and simulated results were almost perfectly matched. It also revealed the difficulty of W-BisC6-2Cs+ complex formation under the present conditions. Thus, this technique is significantly helpful for rapid identification of the specific structures of complexes during Cs+-contaminated wastewater treatment. PMID- 29348050 TI - Do estimates of blood loss differ between student midwives and midwives? A multicenter cross-sectional study. AB - OBJECTIVE: the principal objective of this study was to assess the quality of blood loss estimates by midwives and student midwives. The secondary objectives were: to assess the intraobserver agreement of visual blood estimates and the rate of underestimation of blood loss by participants, and to estimate the sensitivity, specificity, and negative likelihood ratio of these estimates for clinically pertinent blood losses (>= 500mL and >= 1000mL). DESIGN: multicenter cross-sectional study. SETTING: thirty-three French maternity units and 35 French midwifery schools participated in this study. PARTICIPANTS: volunteer French midwifery students (n = 463) and practicing midwives (n = 578). INTERVENTION: an online survey showed 16 randomly ordered photographs of 8 different simulated blood quantities (100, 150, 200, 300, 500, 850, 1000, and 1500mL) with a reference 50-mL image in each photo and asked participants to estimate the blood loss. The visual blood loss estimates were compared with Fisher's exact test. Intraobserver agreement for these estimates was assessed with a weighted kappa coefficient, and the negative predictive values (probability of no hemorrhage when visual estimate was negative) were calculated from prevalence rates in the literature. FINDINGS: of the 16,656 estimates obtained, 34.1% were accurate, 37.2% underestimated the quantity presented, and 28.7% overestimated it. Analyses of the intraobserver reproducibility between the two estimates of the same photograph showed that agreement was highest (weighted kappa >= 0.8) for the highest values (1000mL, 1500mL). For each volume considered, students underestimated blood loss more frequently than midwives. In both groups, the negative predictive values regarding postpartum hemorrhage (PPH) diagnosis (severe or not) were greater than 98%. KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE: student midwives tended to underestimate the quantity of blood loss more frequently than the midwives. Postpartum hemorrhage (>= 500mL) was always identified, but severe postpartum hemorrhage (>= 1000mL) was identified in fewer than half the cases. These results should be taken into account in training both student midwives and practicing professionals. PMID- 29348049 TI - CuI and CuII complexes with phosphine derivatives of fluoroquinolone antibiotics A comparative study on the cytotoxic mode of action. AB - In this paper, we present a comparative study on the cytotoxic mode of action of copper(I) and copper(II) complexes with phosphine derivatives of fluoroquinolone antibiotics (ciprofloxacin HCp and norfloxacin HNr). The in vitro cytotoxic activity of four new compounds was tested against two selected cancer cell lines. All complexes exhibited much better cytotoxicity against both cell lines than unmodified fluoroquinolone antibiotics, their phosphines (PCp, PNr), chalcogenide derivatives (oxides: OPCp, OPNr; sulfides: SPCp, SPNr and selenides: SePCp, SePNr) and previously described by us complexes with phosphines derived from different fluoroquinolones: lomefloxacin (HLm) and sparfloxacin (HSf) as well as cisplatin. Apoptosis, observed at a great predominance, was induced by all studied complexes. Importantly, it was concluded that coordination compounds with Cu(I) ion ([CuI-PNr] and [CuI-PCp]) were much more active than those with Cu(II) ion ([OPNr-CuII], [OPCp-CuII]), even though the highest efficacy to produce reactive oxygen species, participating in overall cytotoxicity, was proved for copper(II) complexes among all studied compounds. Herein, we discuss not only results obtained for copper(I)/(II) complexes with phosphines derived from HNr and HCp but we also compare them to previously described data for complexes with HLm and HSf derivatives. This is the first insight into a structure-activity relationship of copper complexes with phosphine derivatives of fluoroquinolone antibiotics. PMID- 29348051 TI - Midwives understanding of physical activity guidelines during pregnancy. AB - OBJECTIVE: to examine the current level of understanding held by midwives regarding the NICE physical activity guidelines in the UK, and to investigate the physical activity guidance given to women during pregnancy. DESIGN: an 11 question online survey comprising of a mixture of closed and open ended questions. SETTING: data reflects participants sampled across the United Kingdom. PARTICIPANTS: fifty-nine midwives completed the online survey MEASUREMENTS AND FINDINGS: an electronic survey was used to explore the midwives understanding of physical activity guidelines during pregnancy, and the advice they offered to women in their care. Qualitative content analysis was used to gain a more in depth understanding of midwife knowledge. Two per cent of midwives correctly identified the physical activity guidelines, with 44% giving partially correct responses, 25% giving incorrect responses and 29% unsure of what the guidelines are. Despite the low level of correct responses, 59% of respondents reported they were confident or very confident in answering questions regarding physical activity. Only 4% of respondents reported having access to continual professional development (CPD) in the area of PA guidance. KEY CONCLUSIONS: there appears to be a misplaced confidence amongst midwives in their knowledge of the NICE PA guidelines for pregnancy. IMPLICATIONS FOR PRACTICE: as physical inactivity can be detrimental for the health of both mother and baby, there is a clear need for better dissemination of the current and future NICE physical activity guidelines in primary health care settings. The current study determined a substantial lack of CPD in the area of PA guidance, which may be a contributing factor to the lack of knowledge of the guidelines. As such, increasing CPD may in turn improve the accuracy of the advice given to pregnant women and consequently benefit the health of both mother and baby. PMID- 29348053 TI - Multimodality imaging of endocrine immune related adverse events: a primer for radiologists. AB - Immune-related endocrine adverse events occur in up to one third of patients treated with immune checkpoint inhibitors. The purpose of this article is to provide a comprehensive review of the multimodality imaging features of the different immune-related endocrine adverse events. In this article, we will introduce the different types of immune checkpoint inhibitors used in clinical practice, and for each endocrine organ affected we will describe the clinical presentation, the multimodality imaging features at presentation and after treatment, and the possible differential diagnosis. PMID- 29348052 TI - Thirty-day complication rate of percutaneous gastrojejunostomy and gastrostomy tube insertion using a single-puncture, dual-anchor technique. AB - PURPOSE: Our objective was to assess 30-day mortality and complication rates associated with percutaneous enteral feeding tube insertion using a single puncture, dual-suture anchor gastropexy and peel-away sheath technique. We explored differences in complications based on indication and gastrostomy versus gastrojejunostomy tube. METHODS: A retrospective review was conducted of adult patients undergoing fluoroscopically guided gastrojejunostomy (GJ) and gastrostomy (G) tube insertions between July 2011 and 2014 by five interventional radiologists at a single tertiary care centre. A single-puncture dual-anchor gastropexy technique with a peel-away sheath was used for all patients. Complications within 30 day post-procedure were classified based on the Society of Interventional Radiology Standards of Practice for Gastrointestinal Access. Procedure-related mortality and complication rates, as well as indication specific complication rates, were compared between GJ and G groups. RESULTS: 559 consecutive patients underwent G (86) or GJ (473) tube insertion. Primary technical success was 100%. Nine major (1.6%) and 60 minor (10.7%) complications occurred for an overall complication rate of 12.3%. The 30-day complication rate was significantly higher for GJ compared to G tube insertion (13.5% v. 5.8%, p = .049). There was a trend toward a higher 30-day minor complication rate for the GJ group (11.8% v. 4.7%, p = .057), but no significant difference between groups with respect to major complications (1.7% v. 1.2%, p = 1.0). Four procedure related deaths occurred resulting in an overall procedure-related mortality of 0.7%. No significant difference in the procedure-related mortality was found between GJ and G groups (0.6% v. 1.2%, p = .49). CONCLUSION: The 30-day major complication and procedure-related mortality rates from G and GJ tube insertion are low when using a single-puncture, dual-anchor gastropexy technique. GJ tube insertion is associated with a higher overall complication rate, likely due to more minor complications, but may avoid long-term adverse events. PMID- 29348054 TI - Evaluation of sulfane sulfur bioeffects via a mitochondria-targeting selenium containing near-infrared fluorescent probe. AB - As a crucial member in antioxidant regulatory systems, sulfane sulfur plays essential roles in cytoprotective mechanisms by directly eliminating ROS and altering ROS-mediated redox signaling. Despite the rising interests in sulfane sulfur, there only a few bio-compatible methods are available for its direct detection. Moreover, most of the existing methods cannot meet the requirements of real-time detection due to the reactive and labile chemical properties of sulfane sulfur. Therefore, we strive to clarify the mutual relationship between mitochondria sulfane sulfur and ROS under hypoxia stress. Herein, we report a near-infrared fluorescent probe Mito-SeH for the selective imaging of mitochondrial sulfane sulfur in cells and in vivo under hypoxia stress. Mito-SeH includes three moieties: a selenol group (SeH) as the stronger sulfur-acceptor; a near-infrared azo-BODIPY fluorophore as the fluorescent modulator; a lipophilic alkyltriphenylphosphonium cation as the mitochondrial delivery. Mito-SeH exhibits excellent selectivity and sensitivity towards the detection of mitochondria sulfane sulfur. The hypoxia response behavior of Mito-SeH is evaluated in monolayer cell and three-dimensional multicellular spheroid to clarify the relationship between sulfane sulfur and hypoxia. We confirm that sulfane sulfur protection mechanism against hypoxia is to inhibition of caspase-dependent apoptosis through directly scavenging ROS pathway. The probe is also applied to measurement of sulfane sulfur in ex vivo-dissected organs of hypoxic mouse model, as well as the probe is successfully used for real-time monitoring the changes of sulfane sulfur and ROS in acute ischemia mice model. We suggest that sulfane sulfur may be a novel therapeutic agent for hypoxia-induced injury. PMID- 29348055 TI - High-resolution structures of mitochondrial ribosomes and their functional implications. AB - Mitochondrial ribosomes (mitoribosomes) almost exclusively synthesize essential components of the oxidative phosphorylation machinery. Dysfunction of mitochondrial protein biosynthesis leads to human diseases and plays an important role in the altered metabolism of cancer cells. Recent developments in cryo electron microscopy enabled the structural characterization of complete yeast and mammalian mitoribosomes at near-atomic resolution. Despite originating from ancestral bacterial ribosomes, mitoribosomes have diverged in their composition and architecture. Mitoribosomal proteins are larger and more numerous, forming an extended network around the ribosomal RNA, which is expanded in yeast and highly reduced in mammals. Novel protein elements at the entrance or exit of the mRNA channel imply a different mechanism of mRNA recruitment. The polypeptide tunnel is optimized for the synthesis of hydrophobic proteins and their co-translational membrane insertion. PMID- 29348056 TI - Achieving local and global shared realities: distance guides alignment to specific or general social influences. AB - Humans routinely navigate a multitude of potential social influences, ranging from specific individual's opinions to general social norms and group values. Whereas specific social influences afford opportunities to achieve shared inner states with particular individuals, general social influences afford opportunities to achieve shared inner states with broader groups. We review recent theory and evidence examining how people tune into different kinds of social influence in the service of shared reality. We argue that the distance of an attitude object (e.g. how far away it is in time or space) systematically influences what kind of social influence informs people's attitudes. As an attitude object grows more distant, people's attitudes increasingly align with general (vs. specific) social influences. PMID- 29348057 TI - Peanut straw biochar increases the resistance of two Ultisols derived from different parent materials to acidification: A mechanism study. AB - The mechanisms for increasing soil pH buffering capacity (pHBC) and soil resistance to acidification by peanut straw biochar were investigated by undertaking indoor incubation and simulated acidification experiments using two Ultisols derived from tertiary red sandstone and quaternary red earth. The biochar increased the pHBC and resistance of the two Ultisols to acidification. The addition of 3% biochar increased the pHBC of the two Ultisols by 76% and 25%, respectively. The increased resistance of the soils to acidification led to the inhibition to decrease in soil pH and the activation of soil Al during acidification. The protonation of carboxyl groups on the biochar surface was the main mechanism responsible for resisting acidification of the Ultisols when the pH was between 4.5 and 7.0. The higher soil pH (>6.0) after biochar application and the large number of carboxyl groups on the biochar surface were essential if biochar was to significantly increase the resistance of soils to acidification. PMID- 29348058 TI - Elemental assessment of vegetation via portable X-ray fluorescence (PXRF) spectrometry. AB - Elemental concentrations in vegetation are of critical importance, whether establishing plant essential element concentrations (toxicity vs. deficiency) or investigating deleterious elements (e.g., heavy metals) differentially extracted from the soil by plants. Traditionally, elemental analysis of vegetation has been facilitated by acid digestion followed by quantification via inductively coupled plasma (ICP) or atomic absorption (AA) spectroscopy. Previous studies have utilized portable X-ray fluorescence (PXRF) spectroscopy to quantify elements in soils, but few have evaluated the vegetation. In this study, a PXRF spectrometer was employed to scan 228 organic material samples (thatch, deciduous leaves, grasses, tree bark, and herbaceous plants) from smelter-impacted areas of Romania, as well as National Institute of Standards and Technology (NIST) certified reference materials, to demonstrate the application of PXRF for elemental determination in vegetation. Samples were scanned in three conditions: as received from the field (moist), oven dry (70 degrees C), and dried and powdered to pass a 2 mm sieve. Performance metrics of PXRF models relative to ICP atomic emission spectroscopy were developed to asses optimal scanning conditions. Thatch and bark samples showed the highest mean PXRF and ICP concentrations (e.g., Zn, Pb, Cd, Fe), with the exceptions of K and Cl. Validation statistics indicate that the stable validation predictive capacity of PXRF increased in the following order: oven dry intact < field moist < oven dried and powdered. Even under field moist conditions, PXRF could reasonably be used for the determination of Zn (coefficient of determination, R2val 0.86; residual prediction deviation, RPD 2.72) and Cu (R2val 0.77; RPD 2.12), while dried and powdered samples allowed for stable validation prediction of Pb (R2val 0.90; RPD 3.29), Fe (R2val 0.80; RPD 2.29), Cd (R2val 0.75; RPD 2.07) and Cu (R2val 0.98; RPD of 8.53). Summarily, PXRF was shown to be a useful approach for quickly assessing the elemental concentration in vegetation. Future PXRF/vegetation research should explore additional elements and investigate its usefulness in evaluating phytoremediation effectiveness. PMID- 29348059 TI - Synthesis and evaluation of a superabsorbent-fertilizer composite for maximizing the nutrient and water use efficiency in forestry plantations. AB - Reducing fertilizer use is a priority in the quest for sustainable forestry systems. In short rotation Eucalyptus plantations, NPK pellets are routinely added to the seedling's top soil layer at planting, potentially leading to increased seedling mortality, nutrient loss and environmental degradation. To address this triple challenge, the development of efficient fertilization practices is essential. In the present work, we synthesized a crosslinked acrylic cellulosic superabsorbent composite (SAPH-BAL) containing small amounts of specific nutrients integrated in the polymer matrix. We analyzed the composite's chemical and rheological properties, and assessed the viability of Eucalyptus plantations supplied with it at planting. Physiological measurements confirmed the suitability of SAPH-BAL in greenhouse-grown potted seedlings subjected to different growth conditions, showing that it efficiently delivers nutrients while protecting seedlings from drought stress. Field experiments carried out at ten South American locations covering an ample range of environmental conditions confirmed the beneficial effect of SAPH-BAL on growth and survival in comparison to the conventional fertilization scheme (superabsorbent + 75 g NPK). Furthermore, it was found that plants treated with SAPH-BAL were less affected by the differences in rainfall regimes during the experiments compared to those fertilized conventionally. To the best of our knowledge this is the first report describing the successful use of superabsorbents for root targeted delivery of fertilizers in forestry operations. PMID- 29348060 TI - Exposure to workplace smoking bans and continuity of daily smoking patterns on workdays and weekends. AB - INTRODUCTION: Individuals may compensate for workplace smoking bans by smoking more before or after work, or escaping bans to smoke, but no studies have conducted a detailed, quantitative analysis of such compensatory behaviors using real-time data. METHODS: 124 daily smokers documented smoking occasions over 3weeks using ecological momentary assessment (EMA), and provided information on real-world exposure to smoking restrictions and type of workplace smoking policy (full, partial, or no bans). Mixed modeling and generalized estimating equations assessed effects of time of day, weekday (vs weekend), and workplace policy on mean cigarettes per hour (CPH) and reports of changing location to smoke. RESULTS: Individuals were most likely to change locations to smoke during business hours, regardless of work policy, and frequency of EMA reports of restrictions at work was associated with increased likelihood of changing locations to smoke (OR=1.11, 95% CI 1.05-1.16; p<0.0001). Workplace smoking policy, time block, and weekday/weekend interacted to predict CPH (p<0.01), such that individuals with partial work bans -but not those with full bans - smoked more at night (9pm - bed) on weekdays compared to weekends. CONCLUSIONS: There was little evidence that full bans interfered with subjects' smoking during business hours across weekdays and weekends. Smokers largely compensate for exposure to workplace smoking bans by escaping restrictions during business hours. Better understanding the effects of smoking bans on smoking behavior may help to improve their effectiveness and yield insights into determinants of smoking in more restrictive environments. PMID- 29348061 TI - Effects of wavelength mixing ratio and photoperiod on microalgal biomass and lipid production in a two-phase culture system using LED illumination. AB - Blue and red light-emitting diodes (LEDs) were used to study the effects of wavelength mixing ratios, photoperiod regimes, and green wavelength stress on Nannochloropsis salina, Isochrysis galbana, and Phaeodactylum tricornutum cell biomass and lipid production. The maximum specific growth rates of I. galbana and P. tricornutum were obtained under a 50:50 mixing ratio of blue and red wavelength LEDs; that of N. salina was obtained under red LED. Maximum cell biomass for N. salina and P. tricornutum was 0.75 and 1.07 g dcw/L, respectively, obtained under a 24:0 h light/dark cycle. However, the maximum I. galbana biomass was 0.89 g dcw/L under an 18:6 h light/dark cycle. The maximum lipid contents for N. salina, I. galbana, and P. tricornutum were 49.4, 63.3 and 62.0% (w/w), respectively, after exposure to green LED. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were obtained 1% in P. tricornutum and 2% in I. galbana. PMID- 29348062 TI - Improving sewage sludge composting by addition of spent mushroom substrate and sucrose. AB - The effects of spent mushroom substrate (SMS) and sucrose (S) amendment on emissions of nitrogenous gas (mainly NH3 and N2O) and end products quality of sewage sludge (SS) composting were evaluated. Five treatments were composted for 20 days in laboratory-scale using SS with different dosages of SMS and S, without additive amended treatment used as control. The results indicated that SMS amendments especially combination with S promoted dehydrogenase activity, CO2 production, organic matter degradation and humification in the composting, and maturity indices of composting also showed that the 30%SMS+2%S treatment could be much more appropriate to improve the composting process, such as total Kjeldahl nitrogen, nitrification index, humic acids/fulvic acids ratio and germination index, while the emissions of NH3 and N2O were reduced by 34.1% and 86.2%, respectively. These results shown that the moderate addition of SMS and S could improve the compost maturity and reduce nitrogenous gas emission. PMID- 29348063 TI - Production of acids and alcohols from syngas in a two-stage continuous fermentation process. AB - A two-stage continuous system with two stirred tank reactors in series was utilized to perform syngas fermentation using Clostridium carboxidivorans. The first bioreactor (bioreactor 1) was maintained at pH 6 to promote acidogenesis and the second one (bioreactor 2) at pH 5 to stimulate solventogenesis. Both reactors were operated in continuous mode by feeding syngas (CO:CO2:H2:N2; 30:10:20:40; vol%) at a constant flow rate while supplying a nutrient medium at different flow rates of 8.1, 15, 22 and 30 ml/h. A cell recycling unit was added to bioreactor 2 in order to recycle the cells back to the reactor, maintaining the OD600 around 1 in bioreactor 2 throughout the experimental run. When comparing the flow rates, the best results in terms of solvent production were obtained with a flow rate of 22 ml/h, reaching the highest average outlet concentration for alcohols (1.51 g/L) and the most favorable alcohol/acid ratio of 0.32. PMID- 29348064 TI - Magnetic mapping of distribution of wood ash used for fertilization of forest soil. AB - The effect of wood-ash fertilization on forest soils has been assessed mainly through geochemical methods (e.g., content of soil organic matter or nutrients). However, a simple and fast method of determining the distribution of the ash and the extent of affected soil is missing. In this study we present the use of magnetic susceptibility, which is controlled by Fe-oxides, in comparing the fertilized soil in the forest plantation of pine and oak with intact forest soil. Spatial and vertical distribution of magnetic susceptibility was measured in an oak and pine plantation next to stems of young plants, where wood ash was applied as fertilizer. Pattern of the susceptibility distribution was compared with that in non-fertilized part of the plantation as well as with a spot of intact natural forest soil nearby. Our results show that the wood-ash samples contain significant amount of ferrimagnetic magnetite with susceptibility higher than that of typical forest soil. Clear differences were observed between magnetic susceptibility of furrows and ridges. Moreover, the dispersed ash remains practically on the surface, does not penetrate to deeper layers. Finally, our data suggest significant differences in surface values between the pine and oak plants. Based on this study we may conclude that magnetic susceptibility may represent a simple and approximate method of assessing the extent of soil affected by wood-ash. PMID- 29348065 TI - The behaviour of 236U in the North Atlantic Ocean assessed from numerical modelling: A new evaluation of the input function into the Arctic. AB - A numerical model, previously validated with other radionuclides, was applied to simulate the dispersion of 236U released from European nuclear fuel reprocessing plants in the North Atlantic and Shelf Seas using a published reconstruction of Sellafield and La Hague releases. Model results are in better agreement with observations if the lowest estimation of such releases are used. This implies that approximately 40kg of 236U has been discharged from Sellafield. It was found that adsorption of 236U on bed sediments of the shallow European Shelf Seas plays an essential role in its dispersion patterns. This contrasts strongly with the more conservative behaviour of 129I in the same area. This has two important implications in the use of 236U as oceanographic tracer; i) special care must be taken in coastal areas, as sediments might act as sinks and sources of 236U; ii) the annual input function of 236U into the Arctic is not directly controlled by the annual discharges from Sellafield and La Hague, since sediments from the Irish, Celtic and North Sea modulate and smooth the signal. Only 52% of the total releases enter into the Arctic Ocean. PMID- 29348066 TI - Multi-scale measurements show limited soil greenhouse gas emissions in Kenyan smallholder coffee-dairy systems. AB - Efforts have been made in recent years to improve knowledge about soil greenhouse gas (GHG) fluxes from sub-Saharan Africa. However, data on soil GHG emissions from smallholder coffee-dairy systems have not hitherto been measured experimentally. This study aimed to quantify soil GHG emissions at different spatial and temporal scales in smallholder coffee-dairy farms in Murang'a County, Central Kenya. GHG measurements were carried out for one year, comprising two cropping seasons, using vented static chambers and gas chromatography. Sixty rectangular frames were installed on two farms comprising the three main cropping systems found in the area: 1) coffee (Coffea arabica L.); 2) Napier grass (Pennisetum purpureum); and 3) maize intercropped with beans (Zea mays and Phaseolus vulgaris). Within these fields, chambers were allocated on fertilised and unfertilised locations to capture spatial variability. Cumulative annual fluxes in coffee plots ranged from 1 to 1.9kgN2O-Nha-1, 6.5 to 7.6MgCO2-Cha-1 and -3.4 to -2.2kgCH4-Cha-1, with 66% to 94% of annual GHG fluxes occurring during rainy seasons. Across the farm plots, coffee received most of the N inputs and had 56% to 89% higher emissions of N2O than Napier grass, maize and beans. Within farm plots, two to six times higher emissions were found in fertilised hotspots - around the perimeter of coffee trees or within planted maize rows - than in unfertilised locations between trees, rows and planting holes. Background and induced soil N2O emissions from fertiliser and manure applications in the three cropping systems were lower than hypothesized from previous studies and empirical models. This study supplements methods and underlying data for the quantification of GHG emissions at multiple spatial and temporal scales in tropical, smallholder farming systems. Advances towards overcoming the dearth of data will facilitate the understanding of synergies and tradeoffs of climate-smart approaches for low emissions development. PMID- 29348067 TI - Physiological response and transcription profiling analysis reveals the role of H2S in alleviating excess nitrate stress tolerance in tomato roots. AB - Soil secondary salinization caused by excess nitrate addition is one of the major obstacles in greenhouse vegetable production. Excess nitrate inhibited the growth of tomato plants, while application of 100 MUM H2S donor NaHS efficiently increased the plant height, fresh and dry weight of shoot and root, root length, endogenous H2S contents and L-cysteine desulfhydrases activities. NaHS altered the oxidative status of nitrate-stressed plants as inferred by changes in reactive oxygen species (ROS) accumulation and lipid peroxidation accompanied by regulation of the activities of superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), ascorbate peroxidase (APX). Besides, NaHS increased the nitric oxide (NO) and total S-nitrosothiols (SNOs) contents, nitrate reductase (NR) activities and decreased the S-nitrosoglutathione reductase (GSNOR) activities under nitrate stress. Furthermore, microarray analysis using the Affymetrix Tomato GeneChip showed that 5349 transcripts were up-regulated and 5536 transcripts were down-regulated under NaHS and excess nitrate stress treatment, compared to the excess nitrate stress alone. The differentially expressed genes (log2 fold change >2 or < -2) of up-regulated (213) and down-regulated (271) genes identified were functionally annotated and subsequently classified into 9 functional categories. These categories included metabolism, signal transduction, defence response, transcription factor, protein synthesis and protein fate, transporter, cell wall related, hormone response, cell death, energy and unknown proteins. Our study suggested exogenous NaHS might enhance excess nitrate stress tolerance of tomato plants by modulating ROS and reactive nitrogen species (RNS) signaling and downstream transcriptional adjustment, such as defence response, signal transduction and transcription factors. PMID- 29348068 TI - Advantages of titanium xerogel over titanium tetrachloride and polytitanium tetrachloride in coagulation: A mechanism analysis. AB - Titanium xerogel coagulant (TXC) worked better than titanium tetrachloride (TC) and polytitanium chloride (PTC) in a wider pH/dose range for the removal of turbidity. However, the underlying mechanisms were not comprehensively understood. In this work, the better coagulation performance of TXC than TC and PTC was systematically elucidated from the following aspects: the physicochemical properties of the three coagulants, the removal of turbidity and organic matter, and the complexation reactions in coagulation. The results demonstrate that the merits of TXC were attributable to the following characteristics: (1) the higher surface charge density/total surface site concentration/isoelectric point of TXC hydrolysates, (2) the formation of TXC hydrolysates with a net-work structure, and (3) the strong binding affinity of TXC hydrolysates to organic matter caused by the bonded acetylacetone in the TXC framework. In short, the hydrolysis behavior of TXC significantly differed from both its precursor, TC, and the prehydrolyzed PTC. The difference in the hydrolysis of TXC was derived from the gelation process, which led to the polymerization of Ti in a way different from prehydrolyzation. The elucidation of the hydrolysis mechanisms is useful for the better application of Ti-based coagulants and may shed light on the preparation of other metal salts. PMID- 29348069 TI - Thermomechanical processing of In-containing beta-type Ti-Nb alloys. AB - In this study, the effect of thermomechanical processing on microstructure evolution of the indium-containing beta-type Ti alloys (Ti-40Nb)-3.5In and (Ti 36Nb)-3.5In was examined. Both alloys show an increased beta-phase stability compared to binary alloys due to In additions. This leads to a reduced alpha'' phase fraction in the solution treated and recrystallized state in the case of (Ti-36Nb)-3.5In and to the suppression of stress-induced alpha'' formation and deformation twinning for (Ti-40Nb)-3.5In. The mechanical properties of the alloys were subsequently studied by quasistatic tensile tests in the recrystallized state, revealing reduced Young's modulus values of 58GPa ((Ti-40Nb)-3.5In) and 56GPa ((Ti-36Nb)-3.5In) compared to 60GPa as determined for Ti-40Nb. For both In containing alloys the ultimate tensile strength is in the range of 560MPa. Due to the suppressed alpha'' formation, (Ti-40Nb)-3.5In exhibits a linear elastic deformation behavior during tensile loading together with a low Young's modulus and is therefore promising for load-bearing implants. PMID- 29348070 TI - Rational approach to highly potent and selective apoptosis signal-regulating kinase 1 (ASK1) inhibitors. AB - Many diseases are believed to be driven by pathological levels of reactive oxygen species (ROS) and oxidative stress has long been recognized as a driver for inflammatory disorders. Apoptosis signal-regulating kinase 1 (ASK1) has been reported to be activated by intracellular ROS and its inhibition leads to a down regulation of p38-and JNK-dependent signaling. Consequently, ASK1 inhibitors may have the potential to treat clinically important inflammatory pathologies including renal, pulmonary and liver diseases. Analysis of the ASK1 ATP-binding site suggested that Gln756, an amino acid that rarely occurs at the GK+2 position, offered opportunities for achieving kinase selectivity for ASK1 which was applied to the design of a parallel medicinal chemistry library that afforded inhibitors of ASK1 with nanomolar potency and excellent kinome selectivity. A focused optimization strategy utilizing structure-based design resulted in the identification of ASK1 inhibitors with low nanomolar potency in a cellular assay, high selectivity when tested against kinase and broad pharmacology screening panels, and attractive physicochemical properties. The compounds we describe are attractive tool compounds to inform the therapeutic potential of ASK1 inhibition. PMID- 29348071 TI - A focused fragment library targeting the antibiotic resistance enzyme - Oxacillinase-48: Synthesis, structural evaluation and inhibitor design. AB - beta-Lactam antibiotics are of utmost importance when treating bacterial infections in the medical community. However, currently their utility is threatened by the emergence and spread of beta-lactam resistance. The most prevalent resistance mechanism to beta-lactam antibiotics is expression of beta lactamase enzymes. One way to overcome resistance caused by beta-lactamases, is the development of beta-lactamase inhibitors and today several beta-lactamase inhibitors e.g. avibactam, are approved in the clinic. Our focus is the oxacillinase-48 (OXA-48), an enzyme reported to spread rapidly across the world and commonly identified in Escherichia coli and Klebsiella pneumoniae. To guide inhibitor design, we used diversely substituted 3-aryl and 3-heteroaryl benzoic acids to probe the active site of OXA-48 for useful enzyme-inhibitor interactions. In the presented study, a focused fragment library containing 49 3 substituted benzoic acid derivatives were synthesised and biochemically characterized. Based on crystallographic data from 33 fragment-enzyme complexes, the fragments could be classified into R1 or R2 binders by their overall binding conformation in relation to the binding of the R1 and R2 side groups of imipenem. Moreover, binding interactions attractive for future inhibitor design were found and their usefulness explored by the rational design and evaluation of merged inhibitors from orthogonally binding fragments. The best inhibitors among the resulting 3,5-disubstituted benzoic acids showed inhibitory potential in the low micromolar range (IC50 = 2.9 MUM). For these inhibitors, the complex X-ray structures revealed non-covalent binding to Arg250, Arg214 and Tyr211 in the active site and the interactions observed with the mono-substituted fragments were also identified in the merged structures. PMID- 29348072 TI - Structure-based development of an osteoprotegerin-like glycopeptide that blocks RANKL/RANK interactions and reduces ovariectomy-induced bone loss in mice. AB - Osteoporosis is a metabolic bone disease characterized by low bone mass and micro architectural deterioration of bone, for which the underlying mechanism is an imbalance between bone resorption and bone remodeling. The protein-protein interactions between receptor activator of nuclear factor-kappaB ligand (RANKL), RANK (its receptor), and osteoprotegerin (OPG), are known to mediate the development and activation of osteoclasts in bone remodeling, and are regarded as a pivotal therapeutic target for the treatment of osteoporosis. Herein, we disclose the successful development of a novel glycopeptide (OM-2), the structure of which is based on the key interacting sites of the reported RANKL and OPG crystal structure. OM-2 exhibited potent binding affinity with RANKL and resistance to degradation by protease enzymes. It also blocked RANKL/RANK interactions, and inhibited osteoclastogenesis in vitro. In vivo studies confirmed that OM-2 could effectively reduce bone loss and inhibit osteoclast activation in ovariectomized (OVX) mice at a dosage of 20.0 mg/kg/day. Accordingly, OM-2 is suggested as a therapeutic candidate for postmenopausal osteoporosis (PMOP) and osteoclastogenesis-related diseases like rheumatoid arthritis (RA). More importantly, its identification validates our structure based strategy for the development of drugs that target the RANKL/RANK/OPG system. PMID- 29348073 TI - Rate of switch from bipolar depression into mania after morning light therapy: A historical review. AB - Light therapy (LT) is efficacious for bipolar depression with effect sizes equivalent to those in antidepressant pharmacotherapy trials. Patients with bipolar disorder (BD) show a 15-40% rate of manic switches during antidepressant drug treatment. The rate of manic switches during LT has never been estimated. We searched all the literature studies reporting effects of antidepressant LT in BD. 41 studies described 799 patients with BD treated with antidepressant LT, from among which 7 (0.9%) switched into mania and 11 (1.4%) switched into hypomania. The method of assessment of treatment-emergent symptoms significantly influenced the detection of switches into mania: 0% when no method was reported, 0.8% with clinical mental state examination, and 3% with rating scales (chi2 = 14.805, d.f. 4, p = 0.005). The rate of switch increased to 18.8% when considering the 16 patients with rapid-cycling BD. Switches occurred independent of treatment modality (light intensity, duration, and circadian timing of administration). The available literature shows that the highest reported rate of switch from bipolar depression into mania after LT is closely similar to the 4% switch rate expected during the placebo treatment of BD, thus not justifying specific concerns when using this treatment option. PMID- 29348074 TI - Standardized medical image registration for radiological identification of decedents based on paranasal sinuses. AB - Image registration software is frequently used in clinical radiology, e.g., for follow-up diagnosis. To a certain extent, the radiological identification of decedents (RadID) is comparable to a clinical follow-up diagnosis, in that two datasets from different dates are compared in terms of their anatomical characteristics (e.g., paranasal sinuses) or surgical implants. Due to the increasing use of computed tomography (CT) for head examinations in clinical radiology and the increased use of postmortem CT (PMCT) in forensic imaging, the comparison of three-dimensional (3D) clinical CT (termed as antemortem CT (AMCT) in this article) and PMCT datasets for RadID is becoming increasingly practical. In particular, the comparison of paranasal sinuses in AMCT and PMCT imaging is considered a suitable and reliable modality for RadID. However, previous publications regarding RadID based on comparisons of 3D datasets have not considered the implementation of image registration to provide software-side support for RadID. This article demonstrates and evaluates the use of a standard medical image registration procedure for RadID by comparing paranasal sinuses. PMID- 29348076 TI - Association between serum arsenic levels and gestational diabetes mellitus: A population-based birth cohort study. AB - Gestational diabetes mellitus (GDM) is a common obstetric complication with adverse effects on both mothers and their children. Previous studies revealed the link between Arsenic (As) exposure and incidence of diabetes mellitus (DM), but the data on the association between maternal As exposure and GDM is scarce. We examined this association among a population-based birth cohort. As concentrations were determined at multiple time points during pregnancy by ICP MS. The association between As levels and GDM prevalence was examined using logistic regression model after adjustment for confounders. A total of 419 (12.85%) women were diagnosed with GDM. The incidences of GDM gradually increased with increasing quartiles of As levels with significant trend. As levels were associated with the GDM (95%CI: 1.29-2.43) at only the 4th quartile in the first trimester. After adjustment for maternal age, prepregnancy body mass index (BMI), monthly income, gestational age and parity, the association remains significant (95%CI: 1.22-2.38). Stratified analyses showed the associations were largely limited to normal maternal age (95%CI: 1.19-3.04) and normal weight women (95%CI: 1.18-2.66). Our study showed an association between As and GDM in a birth cohort and explored first trimester may be the critical period for As associated GDM. This association was universal in the general pregnant population of normal age and of normal weight. PMID- 29348075 TI - Benzalkonium chloride, benzethonium chloride, and chloroxylenol - Three replacement antimicrobials are more toxic than triclosan and triclocarban in two model organisms. AB - With the recent ban of triclosan (TCS) and triclocarban (TCC) from some personal care products, many replacement antimicrobial compounds have been used. Yet the potential health risk and environmental impact of these replacement compounds are largely unknown. Here we investigated the toxicological effects of three commonly used replacement antimicrobials, benzalkonium chloride (BAC), benzethonium chloride (BEC), and chloroxylenol (CX) to two model organisms, the nematode C. elegans and zebrafish (Danio rerio), and compared them to the banned TCS and TCC. We found that these replacement compounds are not any safer than the banned antimicrobials. In the worm, at least one of the three, BAC, showed comparable toxicity to TCS from organismal to molecular levels, with toxic effects occurring at lower hundred MUg/L to lower mg/L levels. In the fish, all three compounds at the tested concentration ranges (0.05-5 mg/L) showed toxicity effects to zebrafish embryos, indicated by hatching delay or inhibition, embryonic mortality, morphological malformations, and neurotoxicity. BAC was the most toxic among the three, with acute lethal toxicity occurring at environmentally relevant concentrations (hundreds of MUg/L), which is comparable to the banned TCC. However, the toxicity effects of BAC and TCC occurred within different time windows, potentially suggesting different mechanisms of toxicity. CX was the only compound that induced a "body curvature" phenotype among the five compounds examined, suggesting a unique mode of toxic action for this compound. Furthermore, all five compounds except TCS induced neurotoxicity in fish larvae, indicated by alterations in secondary motoneuron axonal projections. Such neurotoxicity has been largely understudied for these antimicrobials in the past years and calls for further investigations in terms of its underlying mechanisms and ecological significance. These findings strongly indicate that scrutiny should be put on these replacement compounds before their introduction into massive use in personal care products. PMID- 29348077 TI - Effects of Cordyceps sinensis on macrophage function in high-fat diet fed rats and its anti-proliferative effects on IMR-32 human neuroblastoma cells. AB - Macrophages have been considered an elusive yet emerging therapeutic target in tumor development since they are an important component in tumor microenvironment. The purpose of the present study was to evaluate the effect of C. sinensis on macrophage function (a component of tumor microenvironment which can alter the virulence of cancer) in high-fat diet fed rats. IMR-32 human neuroblastoma cell cytotoxicity was also investigated. The following parameters were observed to evaluate macrophage function: superoxide anion, hydrogen peroxide, nitric oxide, lysosomal volume and phagocytic capacity. High fat diet (HFD) plus C. sinensis supplementation promoted a decreased superoxide anion and hydrogen peroxide levels as well as lysosomal volume and phagocytic capacity. Nitric oxide was increased in the same group. In summary, C. sinensis offered an important anti-tumoral perspective from the standpoint of the tumor microenvironment and in vitro IMR-32 cytotoxicity. PMID- 29348078 TI - A clinical study showing altered antioxidants profile in patients with hypertension. AB - We compared the plasma antioxidants level of normal control group with that of hypertensive patients in order to test the hypothesis "that antioxidants level has been diminished in hypertensive patients and that antioxidants are interconnected with each other making a network. The plasma and red blood cells antioxidants level of newly diagnosed hypertensive patients [(n=30), (mean age 53 years), (mean systolic BP 158 mmHg, mean diastolic BP 100 mmHg)] were compared to those of the control subjects [(n=30), (mean age 50 years), (mean systolic BP 126 mmHg, mean diastolic BP 90 mmHg)] using liquid chromatography linked with electrochemical detector (HPLC-ECD). The data was analyzed by Minitab software at a 95% confidence interval (p<0.05) as significant. The comparison between the two groups was made applying 2-sample and paired t-test. The individual concentration of antioxidants in both plasma and red blood cells of hypertensive patients was lower in comparison with that of control group while the oxidized/reduced ratios of these antioxidants were higher in hypertensive patients in comparison with that of control group. It is concluded that antioxidants level had been diminished in the hypertensive patients when compared with control group. The overall concentration of all antioxidants has been diminished in the oxidative stress induced pathological conditions which confirm that the studied antioxidants are working in a network. This study may be helpful for the recommendation of antioxidants intervention. PMID- 29348079 TI - Synthesis, optimization and biological evaluation of 99mTc-digoxin as possible cardiac imaging agent. AB - Heart imaging radiopharmaceuticals could improve the diagnostic value of routine heart scanning for detecting cardiac disorders. The aim of the study was to prepare high radiochemical purity 99mTc-Digoxin in a yield of about 98%. The optimal conditions for labelling were as follows: 100MUg of Digoxin, 2MUg of SnCl2*2H2O, room temperature (25+/-1 degrees C), reaction retention time of 30 min at pH 7. Under these conditions, the radiochemical yield of 99mTc-Digoxin reaches 98%. In vivo bio distribution was performed in normal Swiss Albino mice at different time intervals after administration of 99mTc-Digoxin.Scintigraphic study of 99mTc-Digoxin was performed in rabbits. The heart uptake of 99mTc-Digoxin was sufficiently high and thus may be a potential myocardial imaging radiopharmaceutical applicable in cardiology. PMID- 29348080 TI - Squid ink polysaccharide prevents chemotherapy induced injury in the testes of reproducing mice. AB - The present study was conducted to investigate the preventive effects of squid ink polysaccharides (SIP) on the damage of sperm and reproduction induced by cyclophosphamide that is most commonly used for treating clinically cancers. Male Kunming mice exposed to cyclophosphamide were administered with SIP and were sacrificed to determine sperm parameters, testicular antioxidant ability and reproductive capacity. Data indicated that cyclophosphamide caused obvious changes in mice such as significant reduction (P<0.01) of glutathione reductase activity (GR), vitamin C (Vc) content and total antioxidant capacity (T-AOC) in the testes, as well as elevation (P<0.01) of abnormal rates of sperm and fetus, and a decrease in the total fetal count and average fetal count (P<0.01), were totally alleviated by SIP. From these findings it can be concluded that SIP decreases chemotherapeutic damage to sperm and reproduction in mice induced by cyclophosphamide. PMID- 29348081 TI - Evaluation of antioxidant and antimicrobial activities of Bergenia ciliata Sternb (Rhizome) crude extract and fractions. AB - Biologically, screening of medicinal plants extracts have been since pre-historic to determine the antioxidants and antimicrobial profile. The present study was aimed to investigate and evaluate crude extract and different fractions of Bergenia ciliata Sternb (rhizome) for bioactivity which is most considerable medicinal plants. The chloroform fraction was found to be highly anti-oxidative with the IC50 value (4.15+/-0.82) as compare to ethyl acetate and n-hexane fraction. In addition, neither crude extract nor any fraction showed inhibition against fungal strains, i.e. Aspergillus flavus and Aspergillus niger. Furthermore, the crude extract and fractions of B. ciliata (rhizome) exhibiting promising activities against Bacillus atrophoeus, Bacillus subtilis, Kleibsiella pneumonia and Pseudomonas aeruginosa strains. In summary, B. ciliata is recommended as a source of bioactive compounds which might be used against oxidative stress and drug resistance bacteria. PMID- 29348082 TI - Nephrotoxic effects of Valeriana wallichii. AB - Aminoglycosides are the commonly used antibiotics against Gram negative bacteria. Their clinical applications are limited due to nephrotoxic side effects. Therefore, the current study was undertaken in an attempt to increase the use of these drugs without causing nephrotoxicity by exploring the nephroprotective effects of a medicinal plant with high flavonoid contents and strong antioxidant properties, namely Valeriana wallichii. A daily dose of 200mg/kg of the extract derived from V. wallichii was employed for a period of three weeks. The results obtained revealed that co-therapy of extract with gentamicin protected some changes in renal functions; however, failed to provide a complete protection as assessed by biochemical, physiological and histological parameters. It can be concluded from the current findings that V. wallichii failed to deliver protective effects against gentamicin induced renal damage in spite of strong flavonoid contents and antioxidant properties. PMID- 29348083 TI - GC-MS and HPLC profiles of phenolic fractions of the leaf of Telfairia occidentalis. AB - Telfairia occidentalis possesses high antioxidant activity. However, the antioxidant components of the plant have not yet been identified. This study was undertaken to identify the phenolics in the leaf of the plant. Extract and fractions of the leaf of the plant were analysed using the HPLC and GCMS. HPLC analysis revealed the presence of gallic acid (22.19MUg/mg), catechin (29.17MUg/mg), caffeic acid (9.17MUg/mg), ferulic acid (0.94MUg/mg), sinapic acid (1.91 MUg/mg) and 4-hydroxy benzoic acid (43.86 MUg/mg) in the aqueous extract. Phenolics fraction contained gallic acid (0.88 MUg/mg), catechin (2.70MUg/mg), caffeic acid (7.92MUg/mg), ferulic acid (2.72MUg/mg), benzoic acid (6.36MUg/mg), p-coumaric acid (1.48MUg/mg), quercetin (12.00MUg/mg). Only caffeic acid (2.50MUg/mg), ferulic acid (0.44MUg/mg) and quercetin (8.50MUg/mg) were detected in the flavonoid fraction. While GCMS analysis showed the presence of methylparaben; ethylparaben; benzoic acid; 4-hydroxy-2-methoxy-3,5,6-trimethyl-, methyl ester; 4-hydroxy-3-methoxy; phenol, 5-methoxy-2-(methoxymethyl)-; phenol, 5-methoxy-2, 3- dimethyl; and phenol, 2-(2-benzothiazolyl)-. This study is the first to reveal the identity of some phenolics components of the leaf of Telfairia occidentalis. PMID- 29348084 TI - Molecular characterization of autosomal recessive non syndromic hearing loss in selected families from District Mardan, Pakistan. AB - Deafness is the most common sensory disorder, which affects 1/1000 neonates globally. Genetic factors are major contributors for hearing impairment. This study was conducted to explore the linkage of DFNB loci and their mutations with NSHL in selected Pakistani families. We included 10 families with history of deafness from district Mardan, Pakistan. Blood sample (5ml) along with personal and clinical information was collected from the available family members including both diseased and un-affected individuals. Genomic DNA was amplified using loci specific STR markers to investigate the linkage of DFNB loci. Family found linked with DFNB4 locus was screened for SLC26A4 mutations. One out of the ten explored families was found linked with DFNB4 locus which was further investigated for SLC26A4 gene mutation through direct DNA sequencing. Two novel mutations were observed in the studied family, one at splice donor site (164+2T>G) and the other at position 164+5C>G only in the affected members of the linked family. DFNB4 locus was found linked in the present study which harbors SLC26A4 gene. The novel mutation of SLC26A4 gene at the splice donor site results in skipping of the first coding exon and thus can lead to loss of expression of SLC26A4 product in the inner ear. PMID- 29348085 TI - Toxic effect of common poisonous plants of district Bannu, Khyber Pakhtunkhwa, Pakistan. AB - The present paper was a part of Ph.D research work, conducted during the year 2014, in which 87 poisonous plants belonging to 54 genera, were collected, documented and preserved in the herbarium of Bannu, Department of Botany UST, Bannu Khyber Pakhtunkwa Pakistan. The plants were identified botanically, arranged alphabetically along with their Latin name, family name, common name, poisonous parts, toxicity, affects, toxin and their effects. Aim of the study was to induce awareness in the local people of district Bannu about the poisonous effects of the commonly used plants. Data about poisonous effect were collected from the local experienced and mostly old age people through questionnaire. Some information were collected from a number of veterinary texts and literature. The most important plants genera studied in the area were Brassica 6 species (11.11%), Lathyrus 5 spp (9.26%), Astragalus, Euphorbia and Prunus were with 4 spp (7.40%). Datura, Jatropha, Ranunculus, Solanum and Sorghum were with 3 spp (5.56%) while Allium, Amaranthus, Chenopodium, Melilotus and Taxus were with 2 spp (3.70%). These 15 genera contribute 48 species (55.17 %) while the remaining 39 genera have single species each and contribute 44.83% to the total poisonous flora of the research area. Other important poisonous plants were Anagallis arvensis L., Cannabis sativa, Datura stramonium L., D. metel L., Euphorbia species, Heliotropium europaeum, Ipomoea tricolor, Jatropha curcas, Lolium temulentum L., Malus domestica, Mangifera indica L., Medicago sativa L., Melilotus alba Desr., M. officinalis (L.) Lam., Mirabilis jalapa L., Narcissus tazetta, Nicotiana tabacum L., Sorghum halepense (L) Pers., and Xanthium strumarium. It was concluded that the local population had poor knowledge about the poisonous effect of the plants and the present research work was anticipated for use by health care professionals, veterinarians, farmers, homeowners, as well as botanically curious individuals. PMID- 29348086 TI - Pharmaceutical equivalent dissertation of Metformin hydrochloride brands. AB - The aim of study is to establish pharmaceutical equivalence of different brands of Metformin tablets available in Karachi, Pakistan. The quality control parameters which are studied are weight variation test, hardness test, thickness, friability, disintegration and dissolution specified by BP/USP (British and United State Pharmacopoeia). Weight variation and hardness value requirement was complied by all brands. Disintegration time for all brands was within range i.e. 15 minutes and also complies with the BP/USP recommendation. All brands showed more than 90% drug release within forty five minutes. The present conclusion suggests that almost all the brands of Metformin that are available in Karachi meet the specification for quality control analysis. Assay performed by HPLC by keeping flow rate of 1.0 ml/min of the mobile phase and the quantitative evaluation at 225 nm was performed. The retention time of Metformin was found to be 2.5min. Method suitability for the quantitative determination of the drugs was proved by validation according to the International Conference on Harmonization (ICH) guidelines. PMID- 29348087 TI - Phytochemical screening and antibacterial activity of different solvent extracted samples of Arisaema jacquemontii. AB - The current research was carried out to assess the antibacterial activities and phytochemical analysis of the methanol, n-hexane, ethyl acetate, n-butanol soluble fractions and aqueous extracts of the tubers of Arisaema jacquemontii. All the extracts were tested for their antibacterial potential at 1, 2 and 3 mg disc-1 concentrations against 6 bacterial strains through disc diffusion suseptibility assay. The data suggested that different extracts showed varying degree of growth inhibition against the tested microbes. Statistical analysis revealed that n-hexane and ethyl acetate soluble fractions significantly inhibited the growth of all the bacterial strains at the tested concentrations. Moderate activities were recorded for n-butanol and methanolic extracted samples at different concentrations against all the tested strains of bacteria. P. aeruginosa, S. aureus and X. campestris showed resistance to all the tested concentrations of the aqueous extract. B. subtilis and K. pneumoniae were resistant at 1 and 2 mg disc-1 concentrations of the aqueous extract and 3 mg disc-1 of the same extract reduced the growth of the same bacteria. Phytochemical analysis of the different solvent extracted samples suggested the presence or absence of various metabolites including alkaloids, saponins, tannins, sterols, flavonoids, protein, carbohydrates and fats. PMID- 29348088 TI - Prevalence of Hepatitis C virus and its risk factors in blood donors in district Peshawar. AB - The current study was designed in order to elucidate the most sensitive method for daily practice as well as to evaluate the risk factors for HCV infection associated with blood transfusion in District Peshawar. A total of 1400 healthy volunteer blood donors were tested for Anti-HCV. A questionnaire was used to evaluate the risk factors. Initial testing of all blood samples was done by Immuno Chromatographic Technique (ICT) and confirmed by micro particle enzyme immunoassay (MEIA) and Enzyme Linked Immunosorbent Assay (ELISA). The comparison among ICT, ELISA and MEIA techniques was also evaluated for the purpose of sensitivity. Among 1400 blood donors, 26 (1.85%) cases were found positive for Anti-HCV. These 26 cases were positive on MEIA, 16 individuals were positive on ELISA while 14 were positive on ICT. These 26 cases had different histories of dental treatment (50%), traveled abroad (23.07%), surgery (11.53%), blood transfusion (7.69%) and unknown reason (7.69%). Among all these different histories of dental treatment and blood transfusion were the main risk factors for HCV infection. The results revealed that MEIA is a quick and reliable technique for routine screening of blood donors particularly for controlling the spread of HCV. PMID- 29348089 TI - A study of serological markers and lipid profile in non-alcoholic liver cirrhosis patients. AB - Cirrhosis is the end result of chronic liver damage, associated with altered serum biomarkers and lipid profile. However, only few studies regarding serum biomarkers and plasma lipid profile in non-alcoholic liver cirrhosis subjects have been undertaken in Pakistan. This study aimed to evaluate the degree of alterations of tumor markers and lipid profile in liver cirrhosis patients and in normal healthy individuals. Levels of serological markers and plasma lipid pattern was measured in liver cirrhosis patients and in sex and age matched normal healthy individuals (n=46). Tumor marker alpha-fetoprotein (AFP) was measured by ELISA, whereas plasma lipid profile and biomarker alanine aminotr ansferase (ALT) was determined by colorimetric assays. In patients with cirrhosis significant increase was observed in serum AFP and ALT levels when compared with healthy individuals (p<0.05).The triglyceride levels were found to be significantly higher, while LDL-C was significantly lower (p<0.05) in liver cirrhosis patients. There was no significant difference in the plasma concentration of cholesterol, total lipids and HDL-C in liver cirrhosis patients as compared with normal individuals. AFP and ALT are useful markers in the diagnosis of cirrhosis and can be used for the detection of hepatocellular carcinoma (HCC) in cirrhosis patients. The assessment of plasma lipids and lipoprotein pattern is also important for prognostic evaluation of patients with cirrhosis. PMID- 29348090 TI - Pharmacological validation of the folkloric uses of Cyperus rotundus L. in different ailments: An in vivo and in vitro research. AB - In vivo and in vitro research study was conducted on Cyperus rotundus to evaluate the sound mechanistic background in the treatment of gastrointestinal, bronchial and vascular disorders as well as in pain, emesis, pyrexia and bacterial infections. Results showed that crude extract of Cyperus rotundus (Cr.Cr) exhibited the dose-dependent spasmolytic effect in rabbit jejunum by inhibiting the spontaneous and K+ (80 mM)-induced contractions. Pretreatment of tissue with Cr. Cr caused the rightward shift of calcium concentration response curves, similar to verapamil. Cr. Cr also caused the relaxation of K+(80 mM)- and carbachol (1 uM)-induced contractions of trachea preparations, similar to that of verapamil. Moreover, Cr. Cr also relaxed the contraction induced by the K+ (80 mM) and phenylephrine (1 uM) of aorta preparations. Data show that C. rotundus possess the spasmolytic, bronchodilator and vasodilator activities possibly through calcium channels blockade; validating its folkloric use in diarrhea, dyspepsia, bronchitis, asthma and hypertension in addition to antibacterial, antiemetic, antipyretic and analgesic activities. PMID- 29348091 TI - Synthesis and antibacterial activity of the sulfonamide based schiff base and its transition metal (II) complexes. AB - A Schiff base 3 has been synthesized by equimolar reaction (condensation) of sulfonamide i.e. sulfamethoxypyridazine 1 and substituted aromatic aldehyde i.e. 2-Hydroxy-1-Napthalene aldehyde 2. The synthesized Schiff base 3 and its Metal (II) complexes were characterized by its physical, analytical (CHN analysis) and spectral (UV & IR) analysis. The Staphylococcus aureus and Escherichia coli bacterial strains were used for antibacterial activity of Sulfamethoxypyridazine 1, its Schiff base 3 and its transition metal (II) complexes 4-8. All of them showed varied levels of activity. PMID- 29348092 TI - Prescribing pattern of angiotensin receptor blocker: A study of errors and drug drug interactions. AB - Prescriptions comprising multi-drug therapy mostly illustrate the prescribing error. The phenomenon of error is bonded with human inaccuracy. The erroneous practice is observed in under developed countries like Pakistan, Bangladesh and also in developed ones. Consequently drug-drug interaction is one of the most common error associated with potentially serious adverse response even death. Accordingly the present study was conducted to assess the prevalence of prescribing errors and drug-drug interactions in out-patients receiving angiotensin receptor blockers. The study was done with population size one hundred fifty prescriptions obtained from different out-patient settings in Karachi. The prescriptions were screened for prescribing errors and risk factors for drug-drug interactions. Drug-drug interactions were recognized by Micromedex.2.0.Drug-Reax(r)database. The most common type of error was omission error. These errors were patient's age, weight and diagnosis found in 51.3%, 97.3% and 74% of prescriptions, respectively. The prevalence of drug-drug interaction was 38%. A total of 746 drugs were prescribed with an average of 5 drugs per prescription and 450 medication errors were detected. Majority of the interaction were moderate (19.33%), others were minor (14%) and major (6%) in severity. Patients who prescribed many drugs (more than 5 drugs in a while) had a higher risk of developing drug-drug interactions (OR=4.76; 95% CI=2.30-9.64; p=0.0001*).The study data reports the occurrence of prescribing errors in Karachi and also necessitate the need of clinical pharmacist's services in health care system. The step will help to minimize the risk factors by having the drug prescriptions reviewed by the pharmacists. PMID- 29348093 TI - Antifungal and cytotoxic activities of selected medicinal plants from Malaysia. AB - This study was conducted to investigate the antifungal potential and cytotoxicity of selected medicinal plants from Malaysia. The extracts from the stem of Cissus quadrangularis and the leaves of Asplenium nidus, Pereskia bleo, Persicaria odorata and Sauropus androgynus were assayed against six fungi using p iodonitrotetrazolium-based on colorimetric broth microdilution method. All the plant extracts were found to be fungicidal against at least one type of fungus. The strongest fungicidal activity (minimum fungicidal concentration=0.16 mg/mL) were exhibited by the hexane extract of C. quadrangularis, the hexane, chloroform, ethanol and methanol extracts of P. bleo, the hexane and ethyl acetate extracts of P. odorata, and the water extract of A. nidus. In terms of cytotoxicity on the African monkey kidney epithelial (Vero) cells, the chloroform extract of P. odorata produced the lowest 50% cytotoxic concentration (100.3 +/- 4.2 MU g/mL). In contrast, none of the water extracts from the studied plants caused significant toxicity on the cells. The water extract of A. nidus warrants further investigation since it showed the strongest fungicidal activity and the highest total activity (179.22 L/g) against Issatchenkia orientalis, and did not cause any toxicity to the Vero cells. PMID- 29348094 TI - In vitro Salmonella typhi biofilm formation on gallstones and its disruption by Manuka honey. AB - Biofilm is a complex community of single or different types of microorganisms (bacteria, viruses, fungi, protozoa) attached to a surface and stick to each other through production of extracellular matrix. Salmonella typhi forms biofilm on cholesterol gallstones resulting in carrier state. Once formed, biofilm is difficult to treat. To date cholecystectomy is the only cure for this condition. Manuka honey is known to have tremendous antibiofilm activity against various organisms. S. typhi biofilm was grown in vitro on clinical samples of human cholesterol gallstones by Gallstone tube assay method for 12 days. Biofilm mass was quantified on day 1, 5, 7, 9 and 12 by crystal violet assay and was also examined by scanning electron microscope. Three concentrations w/v of Manuka honey (40%, 60% and 80%) were used, each one at 24, 48 and 72 hours. The most effective concentration (80% w/v) was repeated on two sets of gallstones. Biofilm mass was re quantified by crystal violet assay and was examined by scanning electron microscope. S. typhi formed uniform biofilm on cholesterol gallstone surface. The optical density measurements exhibited a rising pattern with time thereby indicating an increase in biofilm mass. It was 0.2 on day 1 and 0.9 on day 12. With 80% w/v Manuka honey, biofilm mass decreased most effectively with 0.5 OD after 72 hours. Biofilm formation by S, typhi on gallstones is surface specific and bile dependant. Either increasing the duration (beyond 72 hours) of the effective concentration (80% w/v) of honey or increasing the concentration (above 80%) of honey for a specific duration (72 hour) may cause complete disruption of the S. typhi biofilm on gallstone. S. typhi forms biofilm on cholesterol gallstones surface in vitro and it can be visualized by scanning electron microscopy. Biofilm mass can be quantified using crystal violet assay. Among various concentrations 80% Manuka honey for 72 hours is most effective in disrupting S. typhi biofilm on gallstones in vitro as evident from crystal violet assay. PMID- 29348095 TI - Estimation of simvastatin and cetirizine by RP-LC method: Application to freeze and thaw (FT) stability studies. AB - Sensitive, simple, reliable and rapid HPLC technique for the estimation of simvastatin (SMV) and cetirizine has been designed in this study. The chromatographic conditions were set using Shimadzu LC-10 AT VP pump, with UV detector (SPD-10 AV-VP). System integration was performed with CBM-102 (Bus Module). Partitioning of components was attained with pre-packed C-18 column of Purospher Star (5 MUm, 250 x 4.6 mm) at ambient conditions. Injected volume of sample was 10 MUl. Mobile phase was composed of 50:50 v/v ratio of Acetonitrile/water (pH 3.0 adjusted with ortho-phosphoric acid) having 2 ml/minutes rate of flow. Compounds were detected in UV region at 225 nm. Percent Recovery of simvastatin was observed in the range of 98-102%. All results were found in accept table range of specification. The projected method is consistent, specific, precise, and rapid, that can be employed to quantitate the SMV along with cetirizine HCl. It was estimated by 3 successive cycles of freeze and thaw stability. Results of FT samples were found within accept table limits the method was developed and validated in raw materials, bulk formulations and final drug products. PMID- 29348096 TI - Antiulcer activity of methanol-chloroform extract of Channa striatus fillet. AB - Channa striatus (Haruan) is Malaysian freshwater fish that is traditionally used to treat ailments related to wound and also ulcers. The aimed of the present study was to determine the mechanisms of anti-ulcer activity of chloroform: methanol extract of C. striatus fillet (CMCS) in rats. The antiulcer profile of CMCS, given orally in the doses of 50, 250 and 500mg/kg, was assessed using the ethanol- and indomethacin-induced gastric ulcer models. The mechanisms of antiulcer of CMCS were determined as follows; i) the antisecretory activity of CMCS was measured using the pyloric ligation rat model, and; ii) the role of nitric oxide (NO) and sulfhydryl compounds in the modulation of CMCS antiulcer activity were determined by pre-treating the rats with L-NAME or NEM, respectively, followed by the pre-treatment of rats with CMCS before subjecting the animals to the ethanol-induced gastric ulcer model. From the results obtained, CMCS exerted significant (P<0.05) antiulcer activity in both models of gastric ulcer wherein the macroscopic and microscopic analysis of the stomach supported the antiulcer claim. With regard to its antisecretory effect, CMCS did not change the volume and pH, but reduce the total acidity only at the lower doses of the gastric juice. Moreover, CMCS demonstrated antiulcer activity was reversed by NEM, but not affected by L-NAME. In conclusion, CMCS shows antiulcer activity that is modulated via its cytoprotective, but not antisecretory effect, and in the presence of sulfhysryl compounds, but not NO. PMID- 29348097 TI - A novel spectrophotometric determination of caroverine in pharmaceutical formulations via derivatization with Folin-ciocalteu Phenol reagent. AB - In this study we have reported a new, fast and extraction free spectrophotometric procedure for the assessment of caroverine in pharmaceutical raw and tablet dosage forms. In the reported visible spectrophotometric procedure tungstate in Folin-Ciocalteu phenol reagent is reduced in alkaline medium and produces the blue colored chromogen that shows Lambdamax at 740nm with the calibration range of 2-28MUg/ml. The LOD and LOQ values are 1.15 and 3.81MUg/ml respectively. The newly developed analytical procedure is used to determine caroverine in raw material of and commercial tablets dosage forms. The spectrophotometric method represented in this study is simple, rapid and extraction free. It may easily be utilized for the determination of caroverine in pharmaceutical laboratories for quality control and stability studies purpose. PMID- 29348098 TI - Safety of fenbendazole in common peafowl (Pavo cristatus). AB - The present study was undertaken to find out the safety levels of fenbendazole in common peafowl. This bird, raised on aviaries and zoos, can be severely parasitized with Ascaridia galli (enteric worms) and Syngamus trachea (gapeworm) along with other parasitic worms. Fenbendazole is a highly effective benzimidazole-class anthelmintic in animals. The objective of this work was to provide target animal safety data in young peafowl and to demonstrate reproductive safety in adult birds. During the experimental study, diets containing fenbendazole at 0, 100, 200 and 300 ppm were fed for 21 days (three times the normal treatment duration). Data for feed consumption, feed conversion rate, and body weights were recorded for each bird in each group. Drug concentrations in different tissues of birds were determined to correlate concentrations with clinical observations, clinical pathology, and histologic findings. There were no morbidities or mortalities after study day 21. Additionally, there were no statistically significant treatment-related differences among above mentioned parameters. Analysis of fenbendazole concentrations in kidney, liver, leg/thigh, and breast muscle and skin with associated fat revealed that, even at the highest dose level used and with no feed withdrawal, fenbendazole concentrations were relatively low in these tissues. These findings indicate that fenbendazole has a relatively wide margin of safety in young peafowl and that the proposed dose of 100 ppm in the feed for 7 consecutive days is well within the margin of safety. In the reproductive safety study, five breeder peafowl farms fed fendbendazole at 100ppm for 7 days and collected data on hatching percentage of peahen eggs before and after treatment. Reproductive performance in peahen was not adversely affected. PMID- 29348099 TI - Spray-dried curcumin nanoemulsion: A new road to improvement of oral bioavailability of curcumin. AB - In this study a new soluble solid curcumin nanoemulsion powder was prepared using spray-drying technology to improve the solubility and bioavailability of curcumin. The liquid nanoemulsion consisted of curcumin, Capryol 90, Transcutol P, and Cremophor RH40. The solid nanoemulsion was prepared by spray-drying the liquid nanoemulsion in laboratory spray dryer, using lactose as solid carrier. The in vitro release from powder formulation was 97.6% within 15 min while the release from the curcumin crystalline was about 10%. An oral pharmacokinetic study was conducted in rats and the relative bioavailability of spray-dried curcumin powder significantly increased compared with that of curcumin crystalline. The Cmax value of solid curcumin nanoemulsion powder was 5.5-fold greater than the value of the curcumin crystalline in aqueous suspension. The absorption mechanism of the spray-dried curcumin powders was discussed. The results indicate that spray-drying in combination with nanoemulsion was a powerful methodology for improving the dissolution rate and oral bioavailability of curcumin. PMID- 29348100 TI - Rapid diagnostic method of tobacco products in saliva by fourier transform infrared spectroscopy (FTIR). AB - The present study was designed to explore the easy and fast method diagnosis of tobacco products in saliva of tobacco users (TU) by FTIR. Sixty four male tobacco users (TU) with mean age range 15.3 to 30.7 years were randomly selected for collection of saliva samples before and after tobacco use (smoking, chewing and dipping tobacco). Twenty were the smoking tobacco users (STU), 24 were chewing tobacco users (CTU) and 20 were dipping tobacco users (DTU). CTU were the users of Mainpuri (n=10) and users of PEN, FIT, 2100 (n=14). Forty eight saliva samples of age and gender matched healthy individuals with negative personal or family history of any addiction were also collected for comparison which served as controls. All were analyzed for their salivary flow rate, salivary pH and salivary diagnostic bands by FTIR. Significantly increased SFR (p<0.05) and salivary pH were found in after chewing tobacco as compared to before its chewing. The comparison between after tobacco use and controls we found decreased SFR and salivary pH for STU. Significant decreased SFR and increased salivary pH were found before or after use of dipping tobacco as compared to controls. Sharp bands at 735-745 cm-1 were found and may be used as salivary diagnostic bands for STU, 945-949 cm-1 for DTU and 900-915 cm-1 for CTU as well as DTU. In conclusion, the salivary diagnostic bands were found at 735-745 cm-1, 900-915 cm-1 and 945 949 cm-1 for TU by easy and fast method using FTIR. PMID- 29348101 TI - Effects of gamma irradiation on the physico-chemical and biological properties of levofloxacin. AB - The aim of the present study was to examine the effect of gamma radiation on levofloxacin. Powder form of levofloxacin was subjected to different radiation doses (25, 50, 75, 100 and 125kGy) of Cobalt-60 source in a Gammacell-220 at a rate of 8.5 Gray/hr. The effect of radiation has been investigated with the aid of different spectroscopic techniques (UV-Vis, FT-IR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and by antibacterial activities. UV data did not reveal significant changes in the structure of levofloxacin which is supported by scanning electron microscopy. However, X-rays diffraction shows a change in crystallinity of levofloxacin to an amorphous structure and this has been reflected on the morphology of this compound as indicated by SEM images. The antibacterial activities, on the other hand, reveal resistance of irradiated levofloxacin against bacteria, where some bacteria were highly affected by the irradiated drug. Similarly, FT-IR data show some changes in the functional groups principal absorption bands, in the IR spectrum, at frequencies 3286, 2846, 1716 and 1620 cm-1 for the O-H stretching band of quinolone, C-H stretching band, and C=O stretching band of carboxylic and pyridine. In addition, new peaks appeared which were not seen in the non-irradiated spectrum. In conclusion, some changes occurred in levofloxacin drug with the passage of radiation but the drug was chemically stable. PMID- 29348102 TI - Phytochemical screening and antibacterial activity of Cyclamen persicum Mill tuber extracts. AB - The emerging drug resistance bacteria increased the demand on the discovery of antibiotics from natural sources. This research was aimed to study the antibacterial reactivity; as well as the phytochemicals, of the wild type of Cyclamen persicum, using nine different extraction methods where four solvents (Methanol, Ethanol, Hexane; and Water) were involved with varied extraction periods ranged from 2 up to 10 hours. The antibacterial activity of crude methanol extract (CME) was found as the best method of extraction, with particular emphasis on the method with prolonged extraction time of (10 hrs). The antibacterial activities of produced CME were determined by using agar diffusion method against two of gram-positive bacteria and two gram-negative ones. The CME treated Mueller-Hinton-Agar plates, were exhibited antibacterial effects against the gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis) by showing of inhibition zone after overnight incubation, while nothing was noticed on those of gram negative ones (Pseudomonas aeruginosa and Escherichia coli). These results that proved the antibacterial activity of the Cyclamen persicum tubers were positively tested the Saponin glycosides from plant. In addition to that, methanol solvent could be the useful method for extractions of Cyclamen and can be used in any developing drugs against pathogenic gram positive bacteria. PMID- 29348103 TI - Prevalence of non alcoholic fatty liver and Non alcoholic Steatohepatitis in Peshawar Cantonment, Khyber Pakhtunkhwa, Pakistan. AB - Non-alcoholic fatty liver disease prevalence has not been well established. The aims of this study was to define prospectively non-alcoholic steatohepatitis (NASH) and non-alcoholic fatty liver disease (NAFLD) prevalence in hospitalized and ambulatory patients 20-65 years old during June 2013 to June 2014 were selected from Combined Military Hospital Peshawar Cantonment area. A base line questionnaire and right upper quadrant ultrasound was completed by all patients. On identifications of fatty liver among the selected cases further lab test data and liver biopsy reports were obtained. Mean BMI of female was 29.9 + 5.65 while prevalence of hypertension and diabetes was 49.8% and 16.6% respectively. Among all patients 62% were Punjabies, 23% were Pathans while 12% were Sindhies. Overall NAFLD prevalence was 47% while NASH was confirmed in 20 patients (12.3% of total and 30%of ultrasound positive patients). Pathans had the highest prevalence of NAFLD (58.5%) as compared to Punjabies (44.5%) and Sindhies (35.3%). Pathans also had a higher prevalence of NASH compared with Punjabies (19.5% VS 10%: P= 0.03). In general, NAFLD patients were more prevalent among male (59%), Diabetic (P<0.00005), hypertensive (P<0.00005) and older (P =0.005). They consumed more fast food (P=.049) had a higher BMI (P<0.0005) and had little or no exercise as compared to their normal or non NAFLD counter parts (P=0.02). NAFLD was found in 75% and NASH in 22.5% among the 26 diabetic patients. ALT, AST, BMI, insulin, quantitative insulin sensitivity checks index and cytokeratin 18 correlated with NASH. It was concluded that NAFLD and NASH prevalence is higher than estimated previously, Pathans and Patients with diabetes are at high risk. PMID- 29348104 TI - Disposition kinetics of omeprazole in healthy female volunteers in Faisalabad. AB - Omeprazole (OMP) a proton pump inhibitor is widely used to suppress gastric acid secretions of parietal cells of stomach and metabolized predominantly by CYP2C19. The objective of the present study was to investigate the pharmacokinetics and dosage regimen of OMP, after its single oral administration in eight healthy adult female subjects. Blood samples were collected at different time intervals after oral administration and their pH was measured. Plasma concentration of OMP was determined by high performance liquid chromatography (HPLC) system equipped with UV-visible Detector. The concentration versus time data was used to compute the pharmacokinetic parameters with the help of computer software programme MW/PHRAM APO version 3.02.Peak plasma concentration was (Cmax) 0.38+/-0.04 MUg/ml achieved at 2.07+/-0.22 hrs. The elimination half-life (t1/2 beta) was1.82 +/- 0.42 hrs. Volume of distribution (Vd) in the present study was 0.40 +/- 0.07 l/kg with total body clearance (ClB) 0.19 +/- 0.02 l/hr/kg and area under the curve (AUC) 1.89 +/- 0.23 MUg.hr/ml.The pharmacokinetic properties which are different from the literature after oral administration of 20 mg OMP in eight healthy female volunteers may be due to the variations of environment and genetic variation between Pakistan and drug manufacturing of foreign countries. PMID- 29348105 TI - Report: Preparation of levodopa/carbidopa compound drug resins. AB - The main objective of this study was to prepare the levodopa/carbidopa compound drug resins and investigate affecting factors such as drug concentration, temperature, particle size. The drug resins were made by bath method and the effects of above factors during the process of preparation was studied. Studies on the stabilities of drugs and drug resins were carried out by HPLC. The Results showed that the preparation of drug resins was influenced by drug concentration, resin particle size, reaction temperature and solvent concentration. In certain conditions the degradation peaks were found in the chromatograms of levodopa and carbidopa while the drug-resins remained undegraded. The study indicates that the drug resin technology is an effective way of improving stability of the drug and possesses certain sustained-release effects. PMID- 29348106 TI - Report: Palladium glutathione, N-acetylcysteine, D-penicillamine conjugation chemistry. AB - The metalloelement Palladium has a number of potential Pharmaco-clinical advantages. Palladium compounds have antiviral, antibacterial, neuroprotective and antitumor properties. However studies have also indicated some mild to serious toxic effects of Palladium metalloelements. Biothiols are important antioxidants that provide protection against metals toxicity. The interaction of metalloelements with biothiols can provide valuable information about the level of toxicity of the metalloelements and about the protective role of biothiols thereof. In this piece of work the effect of salt and complexes of Palladium on the status of different thiols (GSH, NAC, and D-Pen) in aqueous medium, were examined, The thiol quantification was carried out using Elman's method through UV-visible spectrophotometry and 1H- NMR. Results of the study performed in aqueous medium showed that level of different thiols depleted after the addition of the inorganic salts and organic complexes of Palladium. The mechanism of interaction of Palladium with thiols was examined using H-NMR. The results indicate that the depletion in the level of thiols may be due to 1:1 or 1:2 conjugation of Palladium with thiols. These conjugation reactions further suggest that the Palladium have xenobiotic nature causing oxidative stress and thiols play their role in detoxification and biotransformation of these metalloelements. PMID- 29348107 TI - Report: Regional variation in the chemical composition and antioxidant activity of Rosmarinus officinalis L. from China and the Mediterranean region. AB - Rosemary is an aromatic evergreen shrubby herb that is native to the Mediterranean region. This herb is now widely cultivated in many regions of the world. Rosemary is widely used in traditional Chinese medicines, foods, nutraceuticals and cosmetics. Hydro distilled essential oils, obtained from rosemary in China and the Mediterranean region, were analysed by gas chromatography-mass spectrometry (GC-MS). Thirty-seven compounds accounting for 94.97%-99.72% of the oils were identified. The majority of the compounds in the essential oils exhibited no significant differences (table 1 and fig. 1). The extracts were prepared with three solvents of different polarity (dichloromethane, ethyl acetate and aqueous). The ethyl acetate fractions exhibited the highest phenol content and were found to be significantly more active than the dichloromethane and aqueous fractions (fig. 2). Antioxidant activity (by DPPH radical scavenging, ferric ion reduction (FRAP) and thiobarbituric acid reactive substance (TBARS)) was also assessed. The ethyl acetate extracts of Yunnan had the highest amount of antioxidant capacity from China by DPPH and TBARS, with the lowest IC50 values being 0.0011 mg/ml, and 1.6611 mg/ml, respectively. In conclusion, the antioxidant activities of the essential oils and ethyl acetate extracts from rosemary obtained by three different testing methods revealed higher antioxidant activity from rosemary grown in China than in the Mediterranean region. These results suggested that Chinese rosemary should be widely used in food, traditional medicine, cosmetics and perfume products, as well as other chemical industries. PMID- 29348108 TI - Report: Fast chromatographic screening method for 7 drugs of potential threat in drug facilitated crimes. AB - In cases where pharmaceuticals and pharmaceutical candidates are involved in drug facilitated crimes (DFC), like organ theft, robbery, rape and suicides, the analysis of drug powders or solution residues found in crime scenes may give idea on what the victims have ingested. An easy and fast simultaneous determination of 7 drugs; GHB (gamma-hydroxybutyrate), GBL (gamma-butyrolactone), norketamine, ketamine, fenobarbital, fenitoin and thiopental which have the potential to be used in DFC was performed. The method required no sample preparation and has 12 minutes elution time with a good chromatographic separation. The separation was carried out on a C18 monolithic column with UV detection at 215 and 237nm. All r2 values were >=0.99 and the linear ranges were between 0.9956-1.0000. The LOD and LOQ values were between 0.56-5.55MUgmL-1 and 1.69-16.82MUgmL-1 respectively. The repeatability values were <7.35%. This is the first study in the simultaneous screening of the above mentioned drugs using HPLC. PMID- 29348109 TI - Review: Beyond conventional therapies: Complementary and alternative medicine in the management of hypertension: An evidence-based review. AB - Hypertension is one of the major causes of morbidity and mortality. Worldwide, Hypertension is estimated to cause 7.5 million deaths, about 12.8% of the total of all deaths. This accounts for 57 million disability adjusted life years (DALYS) or 3.7% of total DALYS. This led WHO to set a target of 25% reduction in prevalence by 2025. To reach that, WHO has adopted non-conventional methods for the management of hypertension? Despite worldwide popularity of such non conventional therapies, only small volume of evidence exists that supports its effectiveness. This review attempted to make a critical appraisal of the evidence, with the aim to (1) describe the therapeutic modalities frequently used, and (2) review the current level of evidence attributable to each modality. Databases from Cochrane Library, MEDLINE, PUBMED, and EMBASE were searched from 2005-2015. A total of 23 publications have been identified and selected. Out of these, 15 systematic reviews and/or meta-analysis of RCTs, 5 RCTs, 1 non-RCT, and 2 observational studies without control. Among those 23 publications, therapeutic modalities identified are: fish oil, qigong, yoga, coenzyme Q10, melatonin, meditation, vitamin D, vitamin C, monounsaturated fatty acids, dietary amino acids, chiropractic, osteopathy, folate, inorganic nitrate, beetroot juice, beetroot bread, magnesium, and L-arginine. The followings were found to have weak or no evidence: fish oil, yoga, vitamin D, monounsaturated fatty acid, dietary amino-acids, and osteopathy. Those found to have significant reduction in blood pressure are: magnesium, qigong, melatonin, meditation, vitamin C, chiropractic, folate, inorganic nitrate, beetroot juice and L-arginine. Coenzyme Q10on the other hand, showed contradicting results were some studies found weak or no effect on blood pressure while others showed significant blood pressure reduction effect. By virtue of the research designs and methodologies, the evidence contributed from these studies is at level 1. Results from this review suggest that certain non-conventional therapies may be effective in treating hypertension and improving cardiac function and therefore considered as part of an evidence based approach. PMID- 29348110 TI - The Role of Ethnicity and Environment in the Regulation of Response to Sensory Stimulus in Children: Protocol and Pilot Findings of a Neurophysiological Study. AB - BACKGROUND: The ability to regulate the response to sensory stimuli has been associated with successful behavioral patterns necessary for daily activities. However, it is not known whether a child's ethnicity and environment can influence autonomic regulatory mechanisms. OBJECTIVE: This study aims to explore the role of ethnicity and environment in the regulation of responses to sensory stimuli in children. METHODS: In this study, we intend to recruit 128 children from different ethnic groups or environment contexts as follows: (1) 32 typically developing Chinese children living in Hong Kong; (2) 32 typically developing Filipino children living in Hong Kong; (3) 32 typically developing Filipino children who are living in urban areas; and (4) 32 typically developing Filipino children who are living in rural areas in Philippines. Autonomic activity (heart rate variability [HRV] and electrodermal activity [EDA]) will be measured and recorded using Polar H2 heart rate monitor and eSense GSR skin response sensor. Autonomic activity (HRV-low frequency, HRV-high frequency, and EDA) at different conditions between pairwise groupings will be tested using multivariate analysis of variance (MANOVA). All significant levels will be set at P <=.05. RESULTS: We present the research protocol of this study, as well as a short discussion of the preliminary findings from our pilot data, with consequent power and sample size analysis that informs the appropriate sample needed to test our hypothesis. CONCLUSIONS: This study will increase the understanding on the role of individual differences related to a child's ethnicity and environment in the regulation of response to sensory stimuli. The findings of this research may further shed light on the evaluation and treatment planning for children across and within cultures. PMID- 29348111 TI - Leveraging Social Networking Sites for an Autoimmune Hepatitis Genetic Repository: Pilot Study to Evaluate Feasibility. AB - BACKGROUND: Conventional approaches to participant recruitment are often inadequate in rare disease investigation. Social networking sites such as Facebook may provide a vehicle to circumvent common research limitations and pitfalls. We report our preliminary experience with Facebook-based methodology for participant recruitment and participation into an ongoing study of autoimmune hepatitis (AIH). OBJECTIVE: The goal of our research was to conduct a pilot study to assess whether a Facebook-based methodology is capable of recruiting geographically widespread participants into AIH patient-oriented research and obtaining quality phenotypic data. METHODS: We established a Facebook community, the Autoimmune Hepatitis Research Network (AHRN), in 2014 to provide a secure and reputable distillation of current literature and AIH research opportunities. Quarterly advertisements for our ongoing observational AIH study were posted on the AHRN over 2 years. Interested and self-reported AIH participants were subsequently enrolled after review of study materials and completion of an informed consent by our study coordinator. Participants returned completed study materials, including epidemiologic questionnaires and genetic material, to our facility via mail. Outside medical records were obtained and reviewed by a study physician. RESULTS: We successfully obtained all study materials from 29 participants with self-reported AIH within 2 years from 20 different states. Liver biopsy results were available for 90% (26/29) of participants, of which 81% (21/29) had findings consistent with AIH, 15% (4/29) were suggestive of AIH with features of primary biliary cholangitis (PBC), and 4% (1/29) had PBC alone. A total of 83% (24/29) had at least 2 of 3 proposed criteria: positive autoimmune markers, consistent histologic findings of AIH on liver biopsy, and reported treatment with immunosuppressant medications. Self-reported and physician records were discrepant for immunosuppressant medications or for AIH/PBC diagnoses in 4 patients. CONCLUSIONS: Facebook can be an effective ancillary tool for facilitating patient-oriented research in rare diseases. A social media-based approach transcends established limitations in rare disease research and can further develop research communities. PMID- 29348112 TI - Comparing Short Dental Implants to Standard Dental Implants: Protocol for a Systematic Review. AB - BACKGROUND: Short dental implants have been proposed as a simpler, cheaper, and faster alternative for the rehabilitation of atrophic edentulous areas to avoid the disadvantages of surgical techniques for increasing bone volume. OBJECTIVE: This review will compare short implants (4 to 8 mm) to standard implants (larger than 8 mm) in edentulous jaws, evaluating on the basis of marginal bone loss (MBL), survival rate, complications, and prosthesis failure. METHODS: We will electronically search for randomized controlled trials comparing short dental implants to standard dental implants in the following databases: PubMed, Web of Science, EMBASE, Scopus, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov with English language restrictions. We will manually search the reference lists of relevant reviews and the included articles in this review. The following journals will also be searched: European Journal of Oral Implantology, Clinical Oral Implants Research, and Clinical Implant Dentistry and Related Research. Two reviewers will independently perform the study selection, data extraction and quality assessment (using the Cochrane Collaboration tool) of included studies. All meta-analysis procedures including appropriate effect size combination, sub-group analysis, meta-regression, assessing publication or reporting bias will be performed using Stata (Statacorp, TEXAS) version 12.1. RESULTS: Short implant effectiveness will be assessed using the mean difference of MBL in terms of weighted mean difference (WMD) and standardized mean difference (SMD) using Cohen's method. The combined effect size measures in addition to the related 95% confidence intervals will be estimated by a fixed effect model. The heterogeneity of the related effect size will be assessed using a Q Cochrane test and I2 measure. The MBL will be presented by a standardized mean difference with a 95% confidence interval. The survival rate of implants, prostheses failures, and complications will be reported using a risk ratio at 95% confidence interval (P<.05). CONCLUSIONS: The present protocol illustrates an appropriate method to perform the systematic review and ensures transparency for the completed review. The results will be published in a peer-reviewed journal and social networks. In addition, an ethics approval is not considered necessary. TRIAL REGISTRATION: PROSPERO registration number: CRD42016048363; https://www.crd.york.ac.uk/PROSPERO/ display_record.asp?ID=CRD42016048363 (Archived by WebCite at http://www.webcitation.org/6wZ7Fntry). PMID- 29348113 TI - GENETICS IN ENDOCRINOLOGY: The expanding genetic horizon of primary aldosteronism. AB - Aldosterone is the main mineralocorticoid hormone in humans and plays a key role in maintaining water and electrolyte homeostasis. Primary aldosteronism (PA), characterized by autonomous aldosterone overproduction by the adrenal glands, affects 6% of the general hypertensive population and can be either sporadic or familial. Aldosterone-producing adenoma (APA) and bilateral adrenal hyperplasia (BAH) are the two most frequent subtypes of sporadic PA and 4 forms of familial hyperaldosteronism (FH-I to FH-IV) have been identified. Over the last six years, the introduction of next-generation sequencing has significantly improved our understanding of the molecular mechanisms responsible for autonomous aldosterone overproduction in both sporadic and familial PA. Somatic mutations in four genes (KCNJ5, ATP1A1, ATP2B3 and CACNA1D), differently implicated in intracellular ion homeostasis, have been identified in nearly 60% of the sporadic APAs. Germline mutations in KCNJ5 and CACNA1H cause FH-III and FH-IV, respectively, while germline mutations in CACNA1D cause the rare PASNA syndrome, featuring primary aldosteronism seizures and neurological abnormalities. Further studies are warranted to identify the molecular mechanisms underlying BAH and FH-II, the most common forms of sporadic and familial PA whose molecular basis is yet to be uncovered. PMID- 29348114 TI - Question 2: Is it safe to use the centre of the heel for obtaining capillary blood samples in neonates? PMID- 29348115 TI - Investigation of developmental delay. PMID- 29348116 TI - Intensive care: because we can or because we should? PMID- 29348117 TI - Graves' disease. Time to move on. PMID- 29348118 TI - Targeted Deletion of Adipocyte Abca1 (ATP-Binding Cassette Transporter A1) Impairs Diet-Induced Obesity. AB - OBJECTIVE: Adipose tissue cholesterol increases with adipocyte triglyceride content and size during development of obesity. However, how adipocyte cholesterol affects adipocyte function is poorly understood. The aim of this study was to evaluate the role of the cellular cholesterol exporter, Abca1 (ATP binding cassette transporter A1), on adipose tissue function during diet-induced obesity. APPROACH AND RESULTS: Adiponectin Cre recombinase transgenic mice were crossed with Abca1flox/flox mice to generate ASKO (adipocyte-specific Abca1 knockout) mice. Control and ASKO mice were then fed a high-fat, high-cholesterol (45% calories as fat and 0.2% cholesterol) diet for 16 weeks. Compared with control mice, ASKO mice had a 2-fold increase in adipocyte plasma membrane cholesterol content and significantly lower body weight, epididymal fat pad weight, and adipocyte size. ASKO versus control adipose tissue had decreased PPARgamma (peroxisome proliferator-activated receptor gamma) and CCAAT/enhancer binding protein expression, nuclear SREBP1 (sterol regulatory element-binding protein 1) protein, lipogenesis, and triglyceride accretion but similar Akt activation after acute insulin stimulation. Acute siRNA-mediated Abca1 silencing during 3T3L1 adipocyte differentiation reduced adipocyte Abca1 and PPARgamma protein expression and triglyceride content. Systemic stimulated triglyceride lipolysis and glucose homeostasis were similar between control and ASKO mice. CONCLUSIONS: Adipocyte Abca1 is a key regulator of adipocyte lipogenesis and lipid accretion, likely because of increased adipose tissue membrane cholesterol, resulting in decreased activation of lipogenic transcription factors PPARgamma and SREBP1. PMID- 29348120 TI - APOC3 Loss-of-Function Mutations, Remnant Cholesterol, Low-Density Lipoprotein Cholesterol, and Cardiovascular Risk: Mediation- and Meta-Analyses of 137 895 Individuals. AB - OBJECTIVE: Loss-of-function mutations in APOC3 associate with low remnant cholesterol levels and low risk of ischemic vascular disease (IVD). Because some studies show an additional association with low levels of low-density lipoprotein cholesterol (LDL-C), low LDL-C may explain the low risk of IVD in APOC3 loss-of function heterozygotes. We tested to what extent the low risk of IVD in APOC3 loss-of-function heterozygotes is mediated by low plasma remnant cholesterol and LDL-C. APPROACH AND RESULTS: In APOC3 loss-of-function heterozygotes versus noncarriers, we first determined remnant cholesterol and LDL-C levels in meta analyses of 137 895 individuals. Second, we determined whether the association with LDL-C was masked by lipid-lowering therapy. Finally, using mediation analysis, we determined the fraction of the low risk of IVD and ischemic heart disease mediated by remnant cholesterol and LDL-C. In meta-analyses, remnant cholesterol was 43% lower (95% confidence interval, 40%-47%), and LDL-C was 4% lower (1%-6%) in loss-of-function heterozygotes (n=776) versus noncarriers. In the general population, LDL-C was 3% lower in loss-of-function heterozygotes versus noncarriers, 4% lower when correcting for lipid-lowering therapy, and 3% lower in untreated individuals (P values, 0.06-0.008). Remnant cholesterol mediated 37% of the observed 41% lower risk of IVD and 54% of the observed 36% lower risk of ischemic heart disease; corresponding values mediated by LDL-C were 1% and 2%. CONCLUSIONS: The low risk of IVD observed in APOC3 loss-of-function heterozygotes is mainly mediated by the associated low remnant cholesterol and not by low LDL-C. Furthermore, the contribution of LDL-C to IVD risk was not masked by lipid-lowering therapy. This suggests APOC3 and remnant cholesterol as important new targets for reducing cardiovascular risk. PMID- 29348119 TI - Cigarette Smoke Initiates Oxidative Stress-Induced Cellular Phenotypic Modulation Leading to Cerebral Aneurysm Pathogenesis. AB - OBJECTIVE: Cigarette smoke exposure (CSE) is a risk factor for cerebral aneurysm (CA) formation, but the molecular mechanisms are unclear. Although CSE is known to contribute to excess reactive oxygen species generation, the role of oxidative stress on vascular smooth muscle cell (VSMC) phenotypic modulation and pathogenesis of CAs is unknown. The goal of this study was to investigate whether CSE activates a NOX (NADPH oxidase)-dependent pathway leading to VSMC phenotypic modulation and CA formation and rupture. APPROACH AND RESULTS: In cultured cerebral VSMCs, CSE increased expression of NOX1 and reactive oxygen species which preceded upregulation of proinflammatory/matrix remodeling genes (MCP-1, MMPs [matrix metalloproteinase], TNF-alpha, IL-1beta, NF-kappaB, KLF4 [Kruppel like factor 4]) and downregulation of contractile genes (SM-alpha-actin [smooth muscle alpha actin], SM-22alpha [smooth muscle 22alpha], SM-MHC [smooth muscle myosin heavy chain]) and myocardin. Inhibition of reactive oxygen species production and knockdown of NOX1 with siRNA or antisense decreased CSE-induced upregulation of NOX1 and inflammatory genes and downregulation of VSMC contractile genes and myocardin. p47phox-/- NOX knockout mice, or pretreatment with the NOX inhibitor, apocynin, significantly decreased CA formation and rupture compared with controls. NOX1 protein and mRNA expression were similar in p47phox-/- mice and those pretreated with apocynin but were elevated in unruptured and ruptured CAs. CSE increased CA formation and rupture, which was diminished with apocynin pretreatment. Similarly, NOX1 protein and mRNA and reactive oxygen species were elevated by CSE, and in unruptured and ruptured CAs. CONCLUSIONS: CSE initiates oxidative stress-induced phenotypic modulation of VSMCs and CA formation and rupture. These molecular changes implicate oxidative stress in the pathogenesis of CAs and may provide a potential target for future therapeutic strategies. PMID- 29348122 TI - Macrophage Transitions in Heart Valve Development and Myxomatous Valve Disease. AB - OBJECTIVE: Hematopoietic-derived cells have been reported in heart valves but remain poorly characterized. Interestingly, recent studies reveal infiltration of leukocytes and increased macrophages in human myxomatous mitral valves. Nevertheless, timing and contribution of macrophages in normal valves and myxomatous valve disease are still unknown. The objective is to characterize leukocytes during postnatal heart valve maturation and identify macrophage subsets in myxomatous valve disease. APPROACH AND RESULTS: Leukocytes are detected in heart valves after birth, and their numbers increase during postnatal valve development. Flow cytometry and immunostaining analysis indicate that almost all valve leukocytes are myeloid cells, consisting of at least 2 differentially localized macrophage subsets and dendritic cells. Beginning a week after birth, increased numbers of CCR2+ (C-C chemokine receptor type 2) macrophages are present, consistent with infiltrating populations of monocytes, and macrophages are localized in regions of biomechanical stress in the valve leaflets. Valve leukocytes maintain expression of CD (cluster of differentiation) 45 and do not contribute to significant numbers of endothelial or interstitial cells. Macrophage lineages were examined in aortic and mitral valves of Axin2 KO (knockout) mice that exhibit myxomatous features. Infiltrating CCR2+ monocytes and expansion of CD206-expressing macrophages are localized in regions where modified heavy chain hyaluronan is observed in myxomatous valve leaflets. Similar colocalization of modified hyaluronan and increased numbers of macrophages were observed in human myxomatous valve disease. CONCLUSIONS: Our study demonstrates the heterogeneity of myeloid cells in heart valves and highlights an alteration of macrophage subpopulations, notably an increased presence of infiltrating CCR2+ monocytes and CD206+ macrophages, in myxomatous valve disease. PMID- 29348121 TI - Endothelial Cell-Derived Von Willebrand Factor, But Not Platelet-Derived, Promotes Atherosclerosis in Apolipoprotein E-Deficient Mice. AB - OBJECTIVE: VWF (von Willebrand factor) is synthesized by endothelial cells and megakaryocytes and is known to contribute to atherosclerosis. In vitro studies suggest that platelet-derived VWF (Plt-VWF) is biochemically and functionally different from endothelial cell-derived VWF (EC-VWF). We determined the role of different pools of VWF in the pathophysiology of atherosclerosis. APPROACH AND RESULTS: Using bone marrow transplantation, we generated chimeric Plt-VWF, EC VWF, and Plt-VWF mice lacking a disintegrin and metalloprotease with thrombospondin type I repeats-13 in platelets and plasma on apolipoprotein E deficient (Apoe-/-) background. Controls were chimeric Apoe-/- mice transplanted with bone marrow from Apoe-/- mice (wild type) and Vwf-/-Apoe-/- mice transplanted with bone marrow from Vwf-/-Apoe-/- mice (VWF-knock out). Susceptibility to atherosclerosis was evaluated in whole aortae and cross sections of the aortic sinus in female mice fed a high-fat Western diet for 14 weeks. VWF-knock out, Plt-VWF, and Plt-VWF mice lacking a disintegrin and metalloprotease with thrombospondin type I repeats-13 exhibited reduced plaque size characterized by smaller necrotic cores, reduced neutrophil and monocytes/macrophages content, decreased MMP9 (matrix metalloproteinase), MMP2, and CX3CL1 (chemokine [C-X3-C motif] ligand 1)-positive area, and abundant interstitial collagen (P<0.05 versus wild-type or EC-VWF mice). Atherosclerotic lesion size and composition were comparable between wild-type or EC-VWF mice. Together these findings suggest that EC-VWF, but not Plt-VWF, promotes atherosclerosis exacerbation. Furthermore, intravital microscopy experiments revealed that EC-VWF, but not Plt-VWF, contributes to platelet and leukocyte adhesion under inflammatory conditions at the arterial shear rate. CONCLUSIONS: EC-VWF, but not Plt-VWF, contributes to VWF-dependent atherosclerosis by promoting platelet adhesion and vascular inflammation. Plt-VWF even in the absence of a disintegrin and metalloprotease with thrombospondin type I repeats 13, both in platelet and plasma, was not sufficient to promote atherosclerosis. PMID- 29348123 TI - Rash associated with rivaroxaban use. AB - PURPOSE: A case of a patient who developed a hypersensitivity reaction to rivaroxaban in the form of a diffuse, exanthematous rash is reported. SUMMARY: After starting rivaroxaban for treatment of cancer-associated deep vein thrombosis (DVT) with pulmonary embolism (PE), a 69-year-old Caucasian woman arrived at an oncology clinic with a diffuse, exanthematous (morbilliform) rash on her neck and torso, spreading to her upper and lower extremities. She reported that the symptoms started to develop about 48 hours after transitioning from subcutaneous enoxaparin to oral rivaroxaban. The patient's symptoms did not subside with diphenhydramine 25-50 mg orally every 6-8 hours. The patient was switched back to enoxaparin therapy for continued anticoagulation therapy. On day 5, rivaroxaban and diphenhydramine were discontinued. Oral dexamethasone 4 mg twice daily was initiated, and the patient transitioned from rivaroxaban to enoxaparin 1 mg/kg every 12 hours subcutaneously. On day 8, the rash had diminished considerably and was present only on her thighs. Analysis of the case using the adverse drug reaction probability scale of Naranjo et al. indicated that rivaroxaban was the probable cause of the hypersensitivity reaction. Four prior case reports of rivaroxaban hypersensitivity manifesting as a rash have been previously reported, with this being the first in a female and the first in a patient undergoing treatment of DVT and PE in the setting of active cancer. CONCLUSION: A 69-year-old Caucasian woman developed a diffuse, exanthematous rash on day 3 of rivaroxaban treatment. Symptoms abated after rivaroxaban discontinuation and treatment with dexamethasone. PMID- 29348124 TI - Organic Anion Transporting Polypeptide 1a4 is Responsible for the Hepatic Uptake of Cardiac Glycosides in Mice. AB - Among organic anion transporting polypeptide (Oatp) family transporters expressed in the rodent liver, such as Oatp1a1, Oatp1a4, Oatp1b2, and Oatp2b1, Oatp1a4 has a unique character to recognize neutral cardiac glycosides as a substrate in addition to organic anions. The relative contribution of Oatp1a4 to the substrate uptake into hepatocytes has not been clarified. In this study, we investigated the importance of Oatp1a4 in the hepatic uptake of its substrate drugs using Slco1a4-/- mice. The hepatic mRNA expression of Slco1a4 was decreased significantly in Slco1a4-/- mice, whereas no differences were seen in other hepatic transporters between wild-type and Slco1a4-/- mice. We determined the plasma concentrations and liver-to-plasma concentration ratios (Kp,liver) of Oatp1a4 substrates, including ouabain, digoxin, BQ-123, fexofenadine, rosuvastatin, pravastatin, nafcillin, and telmisartan, after continuous intravenous infusion. The plasma concentrations of ouabain and rosuvastatin were 2.1-fold and 1.7-fold higher in Slco1a4-/- mice, and Kp,liver of ouabain and digoxin were 13.4-fold and 4.3-fold lower in Slco1a4-/- mice, respectively. Furthermore, the biliary clearance of ouabain and digoxin with regard to plasma concentration were 21.9-fold and 4.1-fold lower in Slco1a4-/- mice, respectively, accompanied with a marked reduction in their Kp,liver, whereas the systemic clearance of ouabain, but not digoxin, was reduced significantly in Slco1a4-/- mice. These results suggest that Oatp1a4 plays a major role in the hepatic accumulation of cardiac glycosides in mice. PMID- 29348125 TI - Metabolism and Disposition of a Novel Selective alpha7 Neuronal Acetylcholine Receptor Agonist ABT-126 in Humans: Characterization of the Major Roles for Flavin-Containing Monooxygenases and UDP-Glucuronosyl Transferase 1A4 and 2B10 in Catalysis. AB - Mass balance, metabolism, and excretion of ABT-126, an alpha7 neuronal acetylcholine receptor agonist, were characterized in healthy male subjects (n = 4) after a single 100-mg (100 MUCi) oral dose. The total recovery of the administered radioactivity was 94.0% (+/-2.09%), with 81.5% (+/-10.2%) in urine and 12.4% (+/-9.3%) in feces. Metabolite profiling indicated that ABT-126 had been extensively metabolized, with 6.6% of the dose remaining as unchanged parent drug in urine. Parent drug accounted for 12.2% of the administered radioactivity in feces. The primary metabolic transformations of ABT-126 involved aza adamantane N-oxidation (M1, 50.3% in urine) and aza-adamantane N-glucuronidation (M11, 19.9% in urine). M1 and M11 were also major circulating metabolites, accounting for 32.6% and 36.6% of the drug-related material in plasma, respectively. These results demonstrated that ABT-126 is eliminated primarily by hepatic metabolism, followed by urinary excretion. Enzymatic studies suggested that M1 formation is mediated primarily by human liver flavin-containing monooxygenase (FMO)3 and, to a lesser extent, by human kidney FMO1; M11 is generated mainly by human uridine 5'-diphospho-glucuronosyltransferase (UGT) 1A4, whereas UGT 2B10 also contributes to ABT-126 glucuronidation. Species-dependent formation of M11 was observed in hepatocytes; M11 was formed in human and monkey hepatocytes, but not in rat and dog hepatocytes, suggesting that monkeys constitute an appropriate model for predicting the fate of compounds undergoing significant N-glucuronidation. M1 and M11 are not expected to have clinically relevant on- or off-target pharmacologic activities. In summary, this study characterized ABT-126 metabolites in the circulation and excreta and the primary elimination pathways of ABT-126 in humans. PMID- 29348126 TI - Concerns about composite reference standards in diagnostic research. PMID- 29348127 TI - Murine chronic graft-versus-host disease proteome profiling discovers CCL15 as a novel biomarker in patients. AB - Improved diagnostic and treatment methods are needed for chronic graft-versus host disease (cGVHD), the leading cause of late nonrelapse mortality (NRM) in long-term survivors of allogenic hematopoietic cell transplantation. Validated biomarkers that facilitate disease diagnosis and classification generally are lacking in cGVHD. Here, we conducted whole serum proteomics analysis of a well established murine multiorgan system cGVHD model. We discovered 4 upregulated proteins during cGVHD that are targetable by genetic ablation or blocking antibodies, including the RAS and JUN kinase activator, CRKL, and CXCL7, CCL8, and CCL9 chemokines. Donor T cells lacking CRK/CRKL prevented the generation of cGVHD, germinal center reactions, and macrophage infiltration seen with wild-type T cells. Whereas antibody blockade of CCL8 or CXCL7 was ineffective in treating cGVHD, CCL9 blockade reversed cGVHD clinical manifestations, histopathological changes, and immunopathological hallmarks. Mechanistically, elevated CCL9 expression was present predominantly in vascular smooth muscle cells and uniquely seen in cGVHD mice. Plasma concentrations of CCL15, the human homolog of mouse CCL9, were elevated in a previously published cohort of 211 cGVHD patients compared with controls and associated with NRM. In a cohort of 792 patients, CCL15 measured at day +100 could not predict cGVHD occurring within the next 3 months with clinically relevant sensitivity/specificity. Our findings demonstrate for the first time the utility of preclinical proteomics screening to identify potential new targets for cGVHD and specifically CCL15 as a diagnosis marker for cGVHD. These data warrant prospective biomarker validation studies. PMID- 29348129 TI - Genomic CDKN2A/2B deletions in adult Ph+ ALL are adverse despite allogeneic stem cell transplantation. AB - We investigated the role of copy number alterations to refine risk stratification in adult Philadelphia chromosome positive (Ph)+ acute lymphoblastic leukemia (ALL) treated with tyrosine kinase inhibitors (TKIs) and allogeneic stem cell transplantation (aSCT). Ninety-seven Ph+ ALL patients (median age 41 years; range 18-64 years) within the prospective multicenter German Multicenter ALL Study Group studies 06/99 (n = 8) and 07/2003 (n = 89) were analyzed. All patients received TKI and aSCT in first complete remission (CR1). Copy number analysis was performed with single nucleotide polymorphism arrays and validated by multiplex ligation-dependent probe amplification. The frequencies of recurrently deleted genes were: IKZF1, 76%; CDKN2A/2B, 45%; PAX5, 43%; BTG1, 18%; EBF1, 13%; ETV6, 5%; RB, 14%. In univariate analyses, the presence of CDKN2A/2B deletions had a negative impact on all endpoints: overall survival (P = .023), disease-free survival (P = .012), and remission duration (P = .036). The negative predictive value of CDKN2A/2B deletions was retained in multivariable analysis along with other factors such as timing of TKI therapy, intensity of conditioning, achieving remission after induction phase 1 and BTG1 deletions. We therefore conclude that acquired genomic CDKN2A/2B deletions identify a subgroup of Ph+ ALL patients, who have an inferior prognosis despite aSCT in CR1. Their poor outcome was attributable primarily to a high relapse rate after aSCT. PMID- 29348128 TI - Pevonedistat, a first-in-class NEDD8-activating enzyme inhibitor, combined with azacitidine in patients with AML. AB - Pevonedistat (TAK-924/MLN4924) is a novel inhibitor of NEDD8-activating enzyme (NAE) with single-agent activity in relapsed/refractory acute myeloid leukemia (AML). We performed a phase 1b study of pevonedistat (PEV) with azacitidine (AZA) based on synergistic activity seen preclinically. Primary objectives included safety and tolerability, and secondary objectives included pharmacokinetics (PK) and disease response. Patients >=60 years with treatment-naive AML (unfit for standard induction therapy) received PEV 20 or 30 mg/m2 IV on days 1, 3, and 5 combined with fixed-dose AZA (75 mg/m2 IV/subcutaneously) on days 1 to 5, 8, and 9, every 28 days. The most common treatment-emergent adverse events were constipation (48%), nausea (42%), fatigue (42%), and anemia (39%). In total, 11 deaths were observed and considered unrelated to study therapy by the investigators. Transient elevations in aspartate aminotransferase (AST) and alanine aminotransferase (ALT) were dose limiting. The recommended phase 2 dose (RP2D) of PEV in this combination is 20 mg/m2 PEV PK was not altered by the addition of AZA. Overall response rate (ORR) based on an intent-to-treat analysis was 50% (20 complete remissions [CRs], 5 complete remission with incomplete peripheral count recovery, 7 partial remissions [PRs]), with an 8.3-month median duration of remission. In patients receiving >=6 cycles of therapy (n = 23, 44%), ORR was 83%. In patients with TP53 mutations, the composite CR/PR rate was 80% (4/5). Two of these patients stayed on study for >10 cycles. Baseline bone marrow blast percentage or cytogenetic/molecular risk did not influence ORR. This study was registered at www.clinicaltrials.gov as #NCT01814826. PMID- 29348130 TI - SETD1A protects HSCs from activation-induced functional decline in vivo. AB - The regenerative capacity of hematopoietic stem cells (HSCs) is limited by the accumulation of DNA damage. Conditional mutagenesis of the histone 3 lysine 4 (H3K4) methyltransferase, Setd1a, revealed that it is required for the expression of DNA damage recognition and repair pathways in HSCs. Specific deletion of Setd1a in adult long-term (LT) HSCs is compatible with adult life and has little effect on the maintenance of phenotypic LT-HSCs in the bone marrow. However, SETD1A-deficient LT-HSCs lose their transcriptional cellular identity, accompanied by loss of their proliferative capacity and stem cell function under replicative stress in situ and after transplantation. In response to inflammatory stimulation, SETD1A protects HSCs and progenitors from activation-induced attrition in vivo. The comprehensive regulation of DNA damage responses by SETD1A in HSCs is clearly distinct from the key roles played by other epigenetic regulators, including the major leukemogenic H3K4 methyltransferase MLL1, or MLL5, indicating that HSC identity and function is supported by cooperative specificities within an epigenetic framework. PMID- 29348131 TI - Iodine Extravasation Quantification on Dual-Energy CT of the Brain Performed after Mechanical Thrombectomy for Acute Ischemic Stroke Can Predict Hemorrhagic Complications. AB - BACKGROUND AND PURPOSE: Intracerebral hemorrhage represents a potentially severe complication of revascularization of acute ischemic stroke. The aim of our study was to assess the capability of iodine extravasation quantification on dual energy CT performed immediately after mechanical thrombectomy to predict hemorrhagic complications. MATERIALS AND METHODS: Because this was a retrospective study, the need for informed consent was waived. Eighty-five consecutive patients who underwent brain dual-energy CT immediately after mechanical thrombectomy for acute ischemic stroke between August 2013 and January 2017 were included. Two radiologists independently evaluated dual-energy CT images for the presence of parenchymal hyperdensity, iodine extravasation, and hemorrhage. Maximum iodine concentration was measured. Follow-up CT examinations performed until patient discharge were reviewed for intracerebral hemorrhage development. The correlation between dual-energy CT parameters and intracerebral hemorrhage development was analyzed by the Mann-Whitney U test and Fisher exact test. Receiver operating characteristic curves were generated for continuous variables. RESULTS: Thirteen of 85 patients (15.3%) developed hemorrhage. On postoperative dual-energy CT, parenchymal hyperdensities and iodine extravasation were present in 100% of the patients who developed intracerebral hemorrhage and in 56.3% of the patients who did not (P = .002 for both). Signs of bleeding were present in 35.7% of the patients who developed intracerebral hemorrhage and in none of the patients who did not (P < .001). Median maximum iodine concentration was 2.63 mg/mL in the patients who developed intracerebral hemorrhage and 1.4 mg/mL in the patients who did not (P < .001). Maximum iodine concentration showed an area under the curve of 0.89 for identifying patients developing intracerebral hemorrhage. CONCLUSIONS: The presence of parenchymal hyperdensity with a maximum iodine concentration of >1.35 mg/mL may identify patients developing intracerebral hemorrhage with 100% sensitivity and 67.6% specificity. PMID- 29348132 TI - T2 Relaxometry MRI Predicts Cerebral Palsy in Preterm Infants. AB - BACKGROUND AND PURPOSE: T2-relaxometry brain MR imaging enables objective measurement of brain maturation based on the water-macromolecule ratio in white matter, but the outcome correlation is not established in preterm infants. Our study aimed to predict neurodevelopment with T2-relaxation values of brain MR imaging among preterm infants. MATERIALS AND METHODS: From January 1, 2012, to May 31, 2015, preterm infants who underwent both T2-relaxometry brain MR imaging and neurodevelopmental follow-up were retrospectively reviewed. T2-relaxation values were measured over the periventricular white matter, including sections through the frontal horns, midbody of the lateral ventricles, and centrum semiovale. Periventricular T2 relaxometry in relation to corrected age was analyzed with restricted cubic spline regression. Prediction of cerebral palsy was examined with the receiver operating characteristic curve. RESULTS: Thirty eight preterm infants were enrolled for analysis. Twenty patients (52.6%) had neurodevelopmental abnormalities, including 8 (21%) with developmental delay without cerebral palsy and 12 (31.6%) with cerebral palsy. The periventricular T2 relaxation values in relation to age were curvilinear in preterm infants with normal development, linear in those with developmental delay without cerebral palsy, and flat in those with cerebral palsy. When MR imaging was performed at >1 month corrected age, cerebral palsy could be predicted with T2 relaxometry of the periventricular white matter on sections through the midbody of the lateral ventricles (area under the receiver operating characteristic curve = 0.738; cutoff value of >217.4 with 63.6% sensitivity and 100.0% specificity). CONCLUSIONS: T2-relaxometry brain MR imaging could provide prognostic prediction of neurodevelopmental outcomes in premature infants. Age-dependent and area selective interpretation in preterm brains should be emphasized. PMID- 29348133 TI - Review of the Imaging Features of Benign Osteoporotic and Malignant Vertebral Compression Fractures. AB - Vertebral compression fractures are very common, especially in the elderly. Benign osteoporotic and malignant vertebral compression fractures have extremely different management and prognostic implications. Although there is an overlap in appearances, characteristic imaging features can aid in the distinction between these 2 types of compression fractures. The aim of this review is to characterize the imaging features of benign and malignant vertebral compression fractures seen with CT, PET, SPECT, and MR imaging. PMID- 29348134 TI - Cerebral Mitochondrial Microangiopathy Leads to Leukoencephalopathy in Mitochondrial Neurogastrointestinal Encephalopathy. AB - BACKGROUND AND PURPOSE: Mitochondrial neurogastrointestinal encephalopathy is a rare disorder due to recessive mutations in the thymidine phosphorylase gene, encoding thymidine phosphorylase protein required for mitochondrial DNA replication. Clinical manifestations include gastrointestinal dysmotility and diffuse asymptomatic leukoencephalopathy. This study aimed to elucidate the mechanisms underlying brain leukoencephalopathy in patients with mitochondrial neurogastrointestinal encephalopathy by correlating multimodal neuroradiologic features to postmortem pathology. MATERIALS AND METHODS: Seven patients underwent brain MR imaging, including single-voxel proton MR spectroscopy and diffusion imaging. Absolute concentrations of metabolites calculated by acquiring unsuppressed water spectra at multiple TEs, along with diffusion metrics based on the tensor model, were compared with those of healthy controls using unpaired t tests in multiple white matters regions. Brain postmortem histologic, immunohistochemical, and molecular analyses were performed in 1 patient. RESULTS: All patients showed bilateral and nearly symmetric cerebral white matter hyperintensities on T2-weighted images, extending to the cerebellar white matter and brain stem in 4. White matter, N-acetylaspartate, creatine, and choline concentrations were significantly reduced compared with those in controls, with a prominent increase in the radial water diffusivity component. At postmortem examination, severe fibrosis of brain vessel smooth muscle was evident, along with mitochondrial DNA replication depletion in brain and vascular smooth-muscle and endothelial cells, without neuronal loss, myelin damage, or gliosis. Prominent periependymal cytochrome C oxidase deficiency was also observed. CONCLUSIONS: Vascular functional and histologic alterations account for leukoencephalopathy in mitochondrial neurogastrointestinal encephalopathy. Thymidine toxicity and mitochondrial DNA replication depletion may induce microangiopathy and blood-brain-barrier dysfunction, leading to increased water content in the white matter. Periependymal cytochrome C oxidase deficiency could explain prominent periventricular impairment. PMID- 29348135 TI - Development of High Signal Intensity within the Globus Pallidus and Dentate Nucleus following Multiple Administrations of Gadobenate Dimeglumine. AB - BACKGROUND AND PURPOSE: Previous studies have evaluated various gadolinium based contrast agents and their association with gadolinium retention, however, there is a discrepancy in the literature concerning the linear agent gadobenate dimeglumine. Our aim was to determine whether an association exists between the administration of gadobenate dimeglumine and the development of intrinsic T1 weighted signal in the dentate nucleus and globus pallidus. MATERIALS AND METHODS: In this single-center, retrospective study, the signal intensity of the globus pallidus, dentate nucleus, thalamus, and middle cerebellar peduncle was measured on unenhanced T1-weighted images in 29 adult patients who had undergone multiple contrast MRIs using exclusively gadobenate dimeglumine (mean, 10.1 +/- 3.23 doses; range, 6-18 doses). Two neuroradiologists, blinded to the number of prior gadolinium-based contrast agent administrations, separately placed ROIs within the globi pallidi, thalami, dentate nuclei, and middle cerebellar peduncles on the last MR imaging examinations. The correlations between the globus pallidus:thalamus and the dentate nucleus:middle cerebellar peduncle signal intensity ratios with the number of gadolinium-based contrast agent administrations and cumulative dose were tested with either 1-tailed Pearson or Spearman correlations. A priori, P < .05 was considered statistically significant. RESULTS: Both the globus pallidus:thalamus and dentate nucleus:middle cerebellar peduncle ratios showed significant correlation with the number of gadolinium-based contrast agent administrations (r = 0.39, P = .017, and r = 0.58, P = .001, respectively). Additionally, the globus pallidus:thalamus and dentate nucleus:middle cerebellar peduncle ratios showed significant correlation with the cumulative dose of gadobenate dimeglumine (r = 0.48, P = .004, and r = 0.43, P = .009, respectively). Dentate nucleus hyperintensity was qualitatively present on the last MR imaging in 79.3%-86.2% of patients and in all patients who had received >10 doses. CONCLUSIONS: At high cumulative doses (commonly experienced by patients, for example, with neoplastic disease), gadobenate dimeglumine is associated with an increase in the globus pallidus:thalamus and dentate nucleus:middle cerebellar peduncles signal intensity ratios. PMID- 29348137 TI - Accuracy of the Compressed Sensing Accelerated 3D-FLAIR Sequence for the Detection of MS Plaques at 3T. AB - BACKGROUND AND PURPOSE: The use of 3D FLAIR improves the detection of brain lesions in MS patients, but requires long acquisition times. Compressed sensing reduces acquisition time by using the sparsity of MR images to randomly undersample the k-space. Our aim was to compare the image quality and diagnostic performance of 3D-FLAIR with and without compressed sensing for the detection of multiple sclerosis lesions at 3T. MATERIALS AND METHODS: Twenty-three patients with relapsing-remitting MS underwent both conventional 3D-FLAIR and compressed sensing 3D-FLAIR on a 3T scanner (reduction in scan time 1 minute 25 seconds, 27%; compressed sensing factor of 1.3). Two blinded readers independently evaluated both conventional and compressed sensing FLAIR for image quality (SNR and contrast-to-noise ratio) and the number of MS lesions visible in the periventricular, intra-juxtacortical, infratentorial, and optic nerve regions. The volume of white matter lesions was measured with automatic postprocessing segmentation software for each FLAIR sequence. RESULTS: Image quality and the number of MS lesions detected by the readers were similar between the 2 FLAIR acquisitions (P = .74 and P = .094, respectively). Almost perfect agreement was found between both FLAIR acquisitions for total MS lesion count (Lin concordance correlation coefficient = 0.99). Agreement between conventional and compressed sensing FLAIR was almost perfect for periventricular and infratentorial lesions and substantial for intrajuxtacortical and optic nerve lesions. Postprocessing with the segmentation software did not reveal a significant difference between conventional and compressed sensing FLAIR in total MS lesion volume (P = .63) or the number of MS lesions (P = .15). CONCLUSIONS: With a compressed sensing factor of 1.3, 3D-FLAIR is 27% faster and preserves diagnostic performance for the detection of MS plaques at 3T. PMID- 29348136 TI - Resting-State Functional MRI: Everything That Nonexperts Have Always Wanted to Know. AB - Resting-state fMRI was first described by Biswal et al in 1995 and has since then been widely used in both healthy subjects and patients with various neurologic, neurosurgical, and psychiatric disorders. As opposed to paradigm- or task-based functional MR imaging, resting-state fMRI does not require subjects to perform any specific task. The low-frequency oscillations of the resting-state fMRI signal have been shown to relate to the spontaneous neural activity. There are many ways to analyze resting-state fMRI data. In this review article, we will briefly describe a few of these and highlight the advantages and limitations of each. This description is to facilitate the adoption and use of resting-state fMRI in the clinical setting, helping neuroradiologists become familiar with these techniques and applying them for the care of patients with neurologic and psychiatric diseases. PMID- 29348138 TI - Development and validation of outcome prediction models for aneurysmal subarachnoid haemorrhage: the SAHIT multinational cohort study. AB - OBJECTIVE: To develop and validate a set of practical prediction tools that reliably estimate the outcome of subarachnoid haemorrhage from ruptured intracranial aneurysms (SAH). DESIGN: Cohort study with logistic regression analysis to combine predictors and treatment modality. SETTING: Subarachnoid Haemorrhage International Trialists' (SAHIT) data repository, including randomised clinical trials, prospective observational studies, and hospital registries. PARTICIPANTS: Researchers collaborated to pool datasets of prospective observational studies, hospital registries, and randomised clinical trials of SAH from multiple geographical regions to develop and validate clinical prediction models. MAIN OUTCOME MEASURE: Predicted risk of mortality or functional outcome at three months according to score on the Glasgow outcome scale. RESULTS: Clinical prediction models were developed with individual patient data from 10 936 patients and validated with data from 3355 patients after development of the model. In the validation cohort, a core model including patient age, premorbid hypertension, and neurological grade on admission to predict risk of functional outcome had good discrimination, with an area under the receiver operator characteristics curve (AUC) of 0.80 (95% confidence interval 0.78 to 0.82). When the core model was extended to a "neuroimaging model," with inclusion of clot volume, aneurysm size, and location, the AUC improved to 0.81 (0.79 to 0.84). A full model that extended the neuroimaging model by including treatment modality had AUC of 0.81 (0.79 to 0.83). Discrimination was lower for a similar set of models to predict risk of mortality (AUC for full model 0.76, 0.69 to 0.82). All models showed satisfactory calibration in the validation cohort. CONCLUSION: The prediction models reliably estimate the outcome of patients who were managed in various settings for ruptured intracranial aneurysms that caused subarachnoid haemorrhage. The predictor items are readily derived at hospital admission. The web based SAHIT prognostic calculator (http://sahitscore.com) and the related app could be adjunctive tools to support management of patients. PMID- 29348139 TI - Dissecting the functions of SMG5, SMG7, and PNRC2 in nonsense-mediated mRNA decay of human cells. AB - The term "nonsense-mediated mRNA decay" (NMD) originally described the degradation of mRNAs with premature translation-termination codons (PTCs), but its meaning has recently been extended to be a translation-dependent post transcriptional regulator of gene expression affecting 3%-10% of all mRNAs. The degradation of NMD target mRNAs involves both exonucleolytic and endonucleolytic pathways in mammalian cells. While the latter is mediated by the endonuclease SMG6, the former pathway has been reported to require a complex of SMG5-SMG7 or SMG5-PNRC2 binding to UPF1. However, the existence, dominance, and mechanistic details of these exonucleolytic pathways are divisive. Therefore, we have investigated the possible exonucleolytic modes of mRNA decay in NMD by examining the roles of UPF1, SMG5, SMG7, and PNRC2 using a combination of functional assays and interaction mapping. Confirming previous work, we detected an interaction between SMG5 and SMG7 and also a functional need for this complex in NMD. In contrast, we found no evidence for the existence of a physical or functional interaction between SMG5 and PNRC2. Instead, we show that UPF1 interacts with PNRC2 and that it triggers 5'-3' exonucleolytic decay of reporter transcripts in tethering assays. PNRC2 interacts mainly with decapping factors and its knockdown does not affect the RNA levels of NMD reporters. We conclude that PNRC2 is probably an important mRNA decapping factor but that it does not appear to be required for NMD. PMID- 29348140 TI - Interactions, localization, and phosphorylation of the m6A generating METTL3 METTL14-WTAP complex. AB - N6-methyladenine (m6A) is found on many eukaryotic RNAs including mRNAs. m6A modification has been implicated in mRNA stability and turnover, localization, or translation efficiency. A heterodimeric enzyme complex composed of METTL3 and METTL14 generates m6A on mRNAs. METTL3/14 is found in the nucleus where it is localized to nuclear speckles and the splicing regulator WTAP is required for this distinct nuclear localization pattern. Although recent crystal structures revealed how the catalytic MT-A70 domains of METTL3 and METTL14 interact with each other, a more global architecture including WTAP and RNA interactions has not been reported so far. Here, we used recombinant proteins and mapped binding surfaces within the METTL3/14-WTAP complex. Furthermore, we identify nuclear localization signals and identify phosphorylation sites on the endogenous proteins. Using an in vitro methylation assay, we confirm that monomeric METTL3 is soluble and inactive while the catalytic center of METTL14 is degenerated and thus also inactive. In addition, we show that the C-terminal RGG repeats of METTL14 are required for METTL3/14 activity by contributing to RNA substrate binding. Our biochemical work identifies characteristic features of METTL3/14 WTAP and reveals novel insight into the overall architecture of this important enzyme complex. PMID- 29348141 TI - CELLULASE6 and MANNANASE7 Affect Cell Differentiation and Silique Dehiscence. AB - Cellulases, hemicellulases, and pectinases play important roles in fruit development and maturation. Although mutants with defects in these processes have not been reported for cellulase or hemicellulase genes, the pectinases ARABIDOPSIS DEHISCENCE ZONE POLYGALACTURONASE1 (ADPG1) and ADPG2 were previously shown to be essential for silique dehiscence in Arabidopsis (Arabidopsis thaliana). Here, we demonstrate that the cellulase gene CELLULASE6 (CEL6) and the hemicellulase gene MANNANASE7 (MAN7) function in the development and dehiscence of Arabidopsis siliques. We found that these genes were expressed in both vegetative and reproductive organs and that their expression in the silique partially depended on the INDEHISCENT and ALCATRAZ transcription factors. Cell differentiation was delayed in the dehiscence zone of cel6 and man7 mutant siliques at early flower development stage 17, and a comparison of the spatio temporal patterns of CEL6 and MAN7 expression with the locations of delayed cell differentiation in the cel6 and man7 mutants revealed that CEL6 and MAN7 likely indirectly affect the timing of cell differentiation in the silique valve at this stage. CEL6 and MAN7 were also found to promote cell degeneration in the separation layer in nearly mature siliques, as cells in this layer remained intact in the cel6 and man7 mutants and the cel6-1 man7-3 double mutant, whereas they degenerated in the wild-type control. Phenotypic studies of single, double, triple, and quadruple mutants revealed that higher-order mutant combinations of cel6-1, man7-3, and adpg1-1 and adpg2-1 produced more severe silique indehiscent phenotypes than the corresponding lower-order mutant combinations, except for some combinations involving cel6-1, man7-3, and adpg2-1 Our results demonstrate that the ability of the silique to dehisce can be manipulated to different degrees by altering the activities of various cell wall-modifying enzymes. PMID- 29348142 TI - SEMA3C drives cancer growth by transactivating multiple receptor tyrosine kinases via Plexin B1. AB - Growth factor receptor tyrosine kinase (RTK) pathway activation is a key mechanism for mediating cancer growth, survival, and treatment resistance. Cognate ligands play crucial roles in autocrine or paracrine stimulation of these RTK pathways. Here, we show SEMA3C drives activation of multiple RTKs including EGFR, ErbB2, and MET in a cognate ligand-independent manner via Plexin B1. SEMA3C expression levels increase in castration-resistant prostate cancer (CRPC), where it functions to promote cancer cell growth and resistance to androgen receptor pathway inhibition. SEMA3C inhibition delays CRPC and enzalutamide-resistant progression. Plexin B1 sema domain-containing:Fc fusion proteins suppress RTK signaling and cell growth and inhibit CRPC progression of LNCaP xenografts post castration in vivo SEMA3C inhibition represents a novel therapeutic strategy for treatment of advanced prostate cancer. PMID- 29348143 TI - Detecting Polygenic Adaptation in Admixture Graphs. AB - An open question in human evolution is the importance of polygenic adaptation: adaptive changes in the mean of a multifactorial trait due to shifts in allele frequencies across many loci. In recent years, several methods have been developed to detect polygenic adaptation using loci identified in genome-wide association studies (GWAS). Though powerful, these methods suffer from limited interpretability: they can detect which sets of populations have evidence for polygenic adaptation, but are unable to reveal where in the history of multiple populations these processes occurred. To address this, we created a method to detect polygenic adaptation in an admixture graph, which is a representation of the historical divergences and admixture events relating different populations through time. We developed a Markov chain Monte Carlo (MCMC) algorithm to infer branch-specific parameters reflecting the strength of selection in each branch of a graph. Additionally, we developed a set of summary statistics that are fast to compute and can indicate which branches are most likely to have experienced polygenic adaptation. We show via simulations that this method-which we call PolyGraph-has good power to detect polygenic adaptation, and applied it to human population genomic data from around the world. We also provide evidence that variants associated with several traits, including height, educational attainment, and self-reported unibrow, have been influenced by polygenic adaptation in different populations during human evolution. PMID- 29348145 TI - FBXL13 directs the proteolysis of CEP192 to regulate centrosome homeostasis and cell migration. AB - Aberrant centrosome organisation with ensuing alterations of microtubule nucleation capacity enables tumour cells to proliferate and invade despite increased genomic instability. CEP192 is a key factor in the initiation process of centrosome duplication and in the control of centrosome microtubule nucleation. However, regulatory means of CEP192 have remained unknown. Here, we report that FBXL13, a binding determinant of SCF (SKP1-CUL1-F-box)-family E3 ubiquitin ligases, is enriched at centrosomes and interacts with the centrosomal proteins Centrin-2, Centrin-3, CEP152 and CEP192. Among these, CEP192 is specifically targeted for proteasomal degradation by FBXL13. Accordingly, induced FBXL13 expression downregulates centrosomal gamma-tubulin and disrupts centrosomal microtubule arrays. In addition, depletion of FBXL13 induces high levels of CEP192 and gamma-tubulin at the centrosomes with the consequence of defects in cell motility. Together, we characterise FBXL13 as a novel regulator of microtubule nucleation activity and highlight a role in promoting cell motility with potential tumour-promoting implications. PMID- 29348146 TI - The INs and OUTs of mitofusins. AB - Mitofusins are outer membrane proteins essential for mitochondrial fusion. Their accepted topology posits that both N and C termini face the cytoplasm. In this issue, Mattie et al. (2018. J. Cell Biol. https://doi.org/10.1083/jcb.201611194) demonstrate instead that their C termini reside in the intermembrane space. These findings call for a revision of the current models of mitochondrial fusion. PMID- 29348144 TI - A CRISPR Tagging-Based Screen Reveals Localized Players in Wnt-Directed Asymmetric Cell Division. AB - Oriented cell divisions are critical to establish and maintain cell fates and tissue organization. Diverse extracellular and intracellular cues have been shown to provide spatial information for mitotic spindle positioning; however, the molecular mechanisms by which extracellular signals communicate with cells to direct mitotic spindle positioning are largely unknown. In animal cells, oriented cell divisions are often achieved by the localization of force-generating motor protein complexes to discrete cortical domains. Disrupting either these force generating complexes or proteins that globally affect microtubule stability results in defects in mitotic positioning, irrespective of whether these proteins function as spatial cues for spindle orientation. This poses a challenge to traditional genetic dissection of this process. Therefore, as an alternative strategy to identify key proteins that act downstream of intercellular signaling, we screened the localization of many candidate proteins by inserting fluorescent tags directly into endogenous gene loci, without overexpressing the proteins. We tagged 23 candidate proteins in Caenorhabditis elegans and examined each protein's localization in a well-characterized, oriented cell division in the four-cell-stage embryo. We used cell manipulations and genetic experiments to determine which cells harbor key localized proteins and which signals direct these localizations in vivo We found that Dishevelled and adenomatous polyposis coli homologs are polarized during this oriented cell division in response to a Wnt signal, but two proteins typically associated with mitotic spindle positioning, homologs of NuMA and Dynein, were not detectably polarized. These results suggest an unexpected mechanism for mitotic spindle positioning in this system, they pinpoint key proteins of interest, and they highlight the utility of a screening approach based on analyzing the localization of endogenously tagged proteins. PMID- 29348147 TI - Bao-Liang Song: Loving biology in the time of cholesterol. AB - Song studies the trafficking and biological activities of cholesterol. PMID- 29348148 TI - Replication timing kept in LINE. AB - Accurate and synchronous replication timing between chromosome homologues is essential for maintaining chromosome stability, yet how this is achieved has remained a mystery. In this issue, Platt et al. (2018. J. Cell Biol. https://doi.org/10.1083/jcb.201707082) identify antisense LINE (L1) transcripts within long noncoding RNAs as the critical factor in maintaining synchronous chromosome-wide replication timing. PMID- 29348150 TI - GMC erasure case: how we learn from human error. PMID- 29348151 TI - AHRR hypomethylation, lung function, lung function decline and respiratory symptoms. AB - Epigenome-wide association studies have shown a consistent association between smoking exposure and hypomethylation in the aryl hydrocarbon receptor repressor (AHRR) gene (cg05575921). We tested the hypothesis that AHRR hypomethylation is associated with low lung function, steeper lung function decline, and respiratory symptoms in the general population.AHRR methylation extent was measured in 9113 individuals from the 1991-1994 examination of the Copenhagen City Heart Study, using bisulfite-treated leukocyte DNA. Spirometry at the time of blood sampling was available for all individuals. Lung function was measured again for 4532 of these individuals in 2001-2003.Cross-sectionally, a 10% lower methylation extent was associated with a 0.2 z-score (95% CI 0.1-0.2) lower forced expiratory volume in 1 s (FEV1) after multivariable adjustment including smoking. Hypomethylation was also associated with a lower z-score for both forced vital capacity (FVC) and FEV1/FVC. In prospective analyses, individuals in the lowest versus highest tertile of methylation extent had a steeper decline in FEV1/height3 (p for examination*methylation interaction=0.003) and FVC/height3 (p=0.01), but not FEV1/FVC (p=0.08). Multivariable-adjusted odds ratios per 10% lower methylation extent were 1.31 (95% CI 1.18-1.45) for chronic bronchitis and 1.21 (95% CI 1.13 1.30) for any respiratory symptoms.AHRR hypomethylation was associated with low lung function, steeper lung function decline, and respiratory symptoms. PMID- 29348152 TI - Hearing loss with kanamycin treatment for multidrug-resistant tuberculosis in Bangladesh. PMID- 29348153 TI - First histopathological evidence of irreversible pulmonary vascular disease in dasatinib-induced pulmonary arterial hypertension. PMID- 29348154 TI - Differential diagnosis between newly diagnosed asthma and COPD using exhaled breath condensate metabolomics: a pilot study. PMID- 29348155 TI - Mesenchymal stromal cell infusion modulates systemic immunological responses in stable COPD patients: a phase I pilot study. PMID- 29348156 TI - Development and feasibility of an eHealth tool for idiopathic pulmonary fibrosis. PMID- 29348159 TI - Correction: Introduction of allergenic foods from 3 months of age reduces incidence of food allergy in breastfed infants. PMID- 29348157 TI - GMC erasure case: we must improve systems to mitigate inevitable mistakes. PMID- 29348160 TI - Up all night: BK channels' circadian dance with different calcium sources. AB - JGP study explores diurnal changes in calcium sources governing BK activity in the SCN. PMID- 29348161 TI - CNS Metastases Needn't Rule Out Trial Inclusion. AB - New guidelines from an expert working group describe when to include or exclude patients with brain metastases from clinical trials. In the past, these patients have often been inappropriately excluded from trials, resulting in a dearth of information on the efficacy of cancer drugs in the central nervous system. PMID- 29348162 TI - Mutation Burden Predicts Anti-PD-1 Response. AB - A new study finds that objective response rates to anti-PD-1 therapies correlate with tumor mutation burden for most of the 27 cancer types studied. Objective response rates were higher than expected for Merkel cell carcinoma and renal cell carcinoma, which may be particularly immunogenic. The objective response rate was unexpectedly low for colorectal cancer with mismatch repair proficiency. PMID- 29348163 TI - IFCC Working Group Recommendations for Assessing Commutability Part 1: General Experimental Design. AB - Commutability is a property of a reference material (RM) that relates to the closeness of agreement between results for an RM and results for clinical samples (CSs) when measured by >=2 measurement procedures (MPs). Commutability of RMs used in a calibration traceability scheme is an essential property for them to be fit for purpose. Similarly, commutability of trueness controls or external quality assessment samples is essential when those materials are used to assess trueness of results for CSs. This report is part 1 of a 3-part series describing how to assess commutability of RMs. Part 1 defines commutability and addresses critical components of the experimental design for commutability assessment, including selection of individual CSs, use of pooled CSs, qualification of MPs for inclusion, establishing criteria for the determination that an RM is commutable, generalization of commutability conclusions to future measurements made with the MPs included in the assessment, and information regarding commutability to be included in the certificate for an RM. Parts 2 and 3 in the series present 2 different statistical approaches to commutability assessment that use fixed criteria related to the medical decisions that will be made using the laboratory test results. PMID- 29348164 TI - IFCC Working Group Recommendations for Assessing Commutability Part 3: Using the Calibration Effectiveness of a Reference Material. AB - A process is described to assess the commutability of a reference material (RM) intended for use as a calibrator based on its ability to fulfill its intended use in a calibration traceability scheme to produce equivalent clinical sample (CS) results among different measurement procedures (MPs) for the same measurand. Three sources of systematic error are elucidated in the context of creating the calibration model for translating MP signals to measurand amounts: calibration fit, calibrator level trueness, and commutability. An example set of 40 CS results from 7 MPs is used to illustrate estimation of bias and variability for each MP. The candidate RM is then used to recalibrate each MP, and its effectiveness in reducing the systematic error among the MPs within an acceptable level of equivalence based on medical requirements confirms its commutability for those MPs. The RM is declared noncommutable for MPs for which, after recalibration, the CS results do not agree with those from other MPs. When a lack of agreement is found, other potential causes, including lack of calibration fit, should be investigated before concluding the RM is noncommutable. The RM is considered fit for purpose for those MPs where commutability is demonstrated. PMID- 29348165 TI - IFCC Working Group Recommendations for Assessing Commutability Part 2: Using the Difference in Bias between a Reference Material and Clinical Samples. AB - A process is described to assess the commutability of a reference material (RM) intended for use as a calibrator, trueness control, or external quality assessment sample based on the difference in bias between an RM and clinical samples (CSs) measured using 2 different measurement procedures (MPs). This difference in bias is compared with a criterion based on a medically relevant difference between an RM and CS results to make a conclusion regarding commutability. When more than 2 MPs are included, the commutability is assessed pairwise for all combinations of 2 MPs. This approach allows the same criterion to be used for all combinations of MPs included in the assessment. The assessment is based on an error model that allows estimation of various random and systematic sources of error, including those from sample-specific effects of interfering substances. An advantage of this approach is that the difference in bias between an RM and the average bias of CSs at the concentration (i.e., amount of substance present or quantity value) of the RM is determined and its uncertainty estimated. An RM is considered fit for purpose for those MPs for which commutability is demonstrated. PMID- 29348166 TI - Clinical Evaluation of a Blood Assay to Diagnose Paucibacillary Tuberculosis via Bacterial Antigens. AB - BACKGROUND: The diagnosis of active tuberculosis (TB) cases primarily relies on methods that detect Mycobacterium tuberculosis (Mtb) bacilli or their DNA in patient samples (e.g., mycobacterial culture and Xpert MTB/RIF assays), but these tests have low clinical sensitivity for patients with paucibacillary TB disease. Our goal was to evaluate the clinical performance of a newly developed assay that can rapidly diagnose active TB cases by direct detection of Mtb-derived antigens in patients' blood samples. METHODS: Nanoparticle (NanoDisk)-enriched peptides derived from the Mtb virulence factors CFP-10 (10-kDa culture factor protein) and ESAT-6 (6-kDa early secretory antigenic target) were analyzed by high-throughput mass spectrometry (MS). Serum from 294 prospectively enrolled Chinese adults were analyzed with this NanoDisk-MS method to evaluate the performance of direct serum Mtb antigen measurement as a means for rapid diagnosis of active TB cases. RESULTS: NanoDisk-MS diagnosed 174 (88.3%) of the study's TB cases, with 95.8% clinical specificity, and with 91.6% and 85.3% clinical sensitivity for culture positive and culture-negative TB cases, respectively. NanoDisk-MS also exhibited 88% clinical sensitivity for pulmonary and 90% for extrapulmonary TB, exceeding the diagnostic performance of mycobacterial culture for these cases. CONCLUSIONS: Direct detection and quantification of serum Mtb antigens by NanoDisk-MS can rapidly and accurately diagnose active TB in adults, independent of disease site or culture status, and outperform Mycobacterium-based TB diagnostics. PMID- 29348167 TI - Thiosulfate sulfurtransferase-like domain-containing 1 protein interacts with thioredoxin. AB - Rhodanese domains are structural modules present in the sulfurtransferase superfamily. These domains can exist as single units, in tandem repeats, or fused to domains with other activities. Despite their prevalence across species, the specific physiological roles of most sulfurtransferases are not known. Mammalian rhodanese and mercaptopyruvate sulfurtransferase are perhaps the best-studied members of this protein superfamily and are involved in hydrogen sulfide metabolism. The relatively unstudied human thiosulfate sulfurtransferase-like domain-containing 1 (TSTD1) protein, a single-domain cytoplasmic sulfurtransferase, was also postulated to play a role in the sulfide oxidation pathway using thiosulfate to form glutathione persulfide, for subsequent processing in the mitochondrial matrix. Prior kinetic analysis of TSTD1 was performed at pH 9.2, raising questions about relevance and the proposed model for TSTD1 function. In this study, we report a 1.04 A resolution crystal structure of human TSTD1, which displays an exposed active site that is distinct from that of rhodanese and mercaptopyruvate sulfurtransferase. Kinetic studies with a combination of sulfur donors and acceptors reveal that TSTD1 exhibits a low Km for thioredoxin as a sulfane sulfur acceptor and that it utilizes thiosulfate inefficiently as a sulfur donor. The active site exposure and its interaction with thioredoxin suggest that TSTD1 might play a role in sulfide-based signaling. The apical localization of TSTD1 in human colonic crypts, which interfaces with sulfide-releasing microbes, and the overexpression of TSTD1 in colon cancer provide potentially intriguing clues as to its role in sulfide metabolism. PMID- 29348168 TI - The phospholipid-repair system LplT/Aas in Gram-negative bacteria protects the bacterial membrane envelope from host phospholipase A2 attack. AB - Secretory phospholipases A2 (sPLA2s) are potent components of mammalian innate immunity antibacterial mechanisms. sPLA2 enzymes attack bacteria by hydrolyzing bacterial membrane phospholipids, causing membrane disorganization and cell lysis. However, most Gram-negative bacteria are naturally resistant to sPLA2 Here we report a novel resistance mechanism to mammalian sPLA2 in Escherichia coli, mediated by a phospholipid repair system consisting of the lysophospholipid transporter LplT and the acyltransferase Aas in the cytoplasmic membrane. Mutation of the lplT or aas gene abolished bacterial lysophospholipid acylation activity and drastically increased bacterial susceptibility to the combined actions of inflammatory fluid components and sPLA2, resulting in bulk phospholipid degradation and loss of colony-forming ability. sPLA2-mediated hydrolysis of the three major bacterial phospholipids exhibited distinctive kinetics and deacylation of cardiolipin to its monoacyl-derivative closely paralleled bacterial death. Characterization of the membrane envelope in lplT- or aas-knockout mutant bacteria revealed reduced membrane packing and disruption of lipid asymmetry with more phosphatidylethanolamine present in the outer leaflet of the outer membrane. Moreover, modest accumulation of lysophospholipids in these mutant bacteria destabilized the inner membrane and rendered outer membrane depleted spheroplasts much more sensitive to sPLA2 These findings indicated that LplT/Aas inactivation perturbs both the outer and inner membranes by bypassing bacterial membrane maintenance mechanisms to trigger specific interfacial activation of sPLA2 We conclude that the LplT/Aas system is important for maintaining the integrity of the membrane envelope in Gram-negative bacteria. Our insights may help inform new therapeutic strategies to enhance host sPLA2 antimicrobial activity. PMID- 29348169 TI - Lipid-mediated signals that regulate mitochondrial biology. AB - For decades, lipids were assumed to fulfill roles only in energy storage and membrane structure. Recent studies have discovered critical roles for phospholipids, sphingolipids, and sterols in many cellular pathways, including cell signaling and transcriptional regulation. Frequently, lipids from these various classes work together to achieve defined cellular outcomes. Specific mitochondrial lipids are critical for proper assembly of the electron transport chain complexes and for effective responses to mitochondrial damage, including maintenance of mitochondrial protein homeostasis, regulation of mitophagy, and induction of apoptosis. In this Minireview, we will primarily focus on mitochondrial lipid signaling mediated by lipid-protein interactions. PMID- 29348170 TI - CRISPR RNA and anti-CRISPR protein binding to the Xanthomonas albilineans Csy1 Csy2 heterodimer in the type I-F CRISPR-Cas system. AB - Clustered regularly interspaced short palindromic repeats (CRISPRs) and CRISPR associated (Cas) proteins provide microbial adaptive immunity against bacteriophages. In type I-F CRISPR-Cas systems, multiple Cas proteins (Csy1-4) compose a surveillance complex (Csy complex) with CRISPR RNA (crRNA) for target recognition. Here, we report the biochemical characterization of the Csy1-Csy2 subcomplex from Xanthomonas albilineans, including the analysis of its interaction with crRNA and AcrF2, an anti-CRISPR (Acr) protein from a phage that infects Pseudomonas aeruginosa The X. albilineans Csy1 and Csy2 proteins (XaCsy1 and XaCsy2, respectively) formed a stable heterodimeric complex that specifically bound the 8-nucleotide (nt) 5'-handle of the crRNA. In contrast, the XaCsy1 XaCsy2 heterodimer exhibited reduced affinity for the 28-nt X. albilineans CRISPR repeat RNA containing the 5'-handle sequence. Chromatographic and calorimetric analyses revealed tight binding between the Acr protein from the P. aeruginosa phage and the heterodimeric subunit of the X. albilineans Csy complex, suggesting that AcrF2 recognizes conserved features of Csy1-Csy2 heterodimers. We found that neither XaCsy1 nor XaCsy2 alone forms a stable complex with AcrF2 and the 5' handle RNA, indicating that XaCsy1-XaCsy2 heterodimerization is required for binding them. We also solved the crystal structure of AcrF2 to a resolution of 1.34 A, enabling a more detailed structural analysis of the residues involved in the interactions with the Csy1-Csy2 heterodimer. Our results provide information about the order of events during the formation of the multisubunit crRNA-guided surveillance complex and suggest that the Acr protein inactivating type I-F CRISPR-Cas systems has broad specificity. PMID- 29348171 TI - A cationic, C-terminal patch and structural rearrangements in Ebola virus matrix VP40 protein control its interactions with phosphatidylserine. AB - Ebola virus (EBOV) is a filamentous lipid-enveloped virus that causes hemorrhagic fever with a high fatality rate. Viral protein 40 (VP40) is the major EBOV matrix protein and regulates viral budding from the plasma membrane. VP40 is a transformer/morpheein that can structurally rearrange its native homodimer into either a hexameric filament that facilitates viral budding or an RNA-binding octameric ring that regulates viral transcription. VP40 associates with plasma membrane lipids such as phosphatidylserine (PS), and this association is critical to budding from the host cell. However, it is poorly understood how different VP40 structures interact with PS, what essential residues are involved in this association, and whether VP40 has true selectivity for PS among different glycerophospholipid headgroups. In this study, we used lipid-binding assays, MD simulations, and cellular imaging to investigate the molecular basis of VP40-PS interactions and to determine whether different VP40 structures (i.e. monomer, dimer, and octamer) can interact with PS-containing membranes. Results from quantitative analysis indicated that VP40 associates with PS vesicles via a cationic patch in the C-terminal domain (Lys224, 225 and Lys274, 275). Substitutions of these residues with alanine reduced PS-vesicle binding by >40 fold and abrogated VP40 localization to the plasma membrane. Dimeric VP40 had 2 fold greater affinity for PS-containing membranes than the monomer, whereas binding of the VP40 octameric ring was reduced by nearly 10-fold. Taken together, these results suggest the different VP40 structures known to form in the viral life cycle harbor different affinities for PS-containing membranes. PMID- 29348172 TI - The alpha-arrestin ARRDC3 suppresses breast carcinoma invasion by regulating G protein-coupled receptor lysosomal sorting and signaling. AB - Aberrant G protein-coupled receptor (GPCR) expression and activation has been linked to tumor initiation, progression, invasion, and metastasis. However, compared with other cancer drivers, the exploitation of GPCRs as potential therapeutic targets has been largely ignored, despite the fact that GPCRs are highly druggable. Therefore, to advance the potential status of GPCRs as therapeutic targets, it is important to understand how GPCRs function together with other cancer drivers during tumor progression. We now report that the alpha arrestin domain-containing protein-3 (ARRDC3) acts as a tumor suppressor in part by controlling signaling and trafficking of the GPCR, protease-activated receptor 1 (PAR1). In a series of highly invasive basal-like breast carcinomas, we found that expression of ARRDC3 is suppressed whereas PAR1 is aberrantly overexpressed because of defective lysosomal sorting that results in persistent signaling. Using a lentiviral doxycycline-inducible system, we demonstrate that re expression of ARRDC3 in invasive breast carcinoma is sufficient to restore normal PAR1 trafficking through the ALG-interacting protein X (ALIX)-dependent lysosomal degradative pathway. We also show that ARRDC3 re-expression attenuates PAR1 stimulated persistent signaling of c-Jun N-terminal kinase (JNK) in invasive breast cancer. Remarkably, restoration of ARRDC3 expression significantly reduced activated PAR1-induced breast carcinoma invasion, which was also dependent on JNK signaling. These findings are the first to identify a critical link between the tumor suppressor ARRDC3 and regulation of GPCR trafficking and signaling in breast cancer. PMID- 29348173 TI - Methanobactins: Maintaining copper homeostasis in methanotrophs and beyond. AB - Methanobactins (Mbns) are ribosomally produced, post-translationally modified natural products that bind copper with high affinity and specificity. Originally identified in methanotrophic bacteria, which have a high need for copper, operons encoding these compounds have also been found in many non-methanotrophic bacteria. The proteins responsible for Mbn biosynthesis include several novel enzymes. Mbn transport involves export through a multidrug efflux pump and re internalization via a TonB-dependent transporter. Release of copper from Mbn and the molecular basis for copper regulation of Mbn production remain to be elucidated. Future work is likely to result in the identification of new enzymatic chemistry, opportunities for bioengineering and drug targeting of copper metabolism, and an expanded understanding of microbial metal homeostasis. PMID- 29348175 TI - Glucose regulates MafA transcription factor abundance and insulin gene expression by inhibiting AMP-activated protein kinase in pancreatic beta-cells. AB - Insulin mRNA expression in pancreatic islet beta-cells is up-regulated by extracellular glucose concentration, but the underlying mechanism remains incompletely understood. MafA is a transcriptional activator specifically enriched in beta-cells that binds to the insulin gene promoter. Its expression is transcriptionally and posttranscriptionally regulated by glucose. Moreover, AMP activated protein kinase (AMPK), a regulator of cellular energy homeostasis, is inhibited by high glucose, and this inhibition is essential for the up-regulation of insulin gene expression and glucose-stimulated insulin secretion (GSIS). Here we mutagenized the insulin promoter and found that the MafA-binding element C1/RIPE3b is required for glucose- or AMPK-induced alterations in insulin gene promoter activity. Under high-glucose conditions, pharmacological activation of AMPK in isolated mouse islets or MIN6 cells by metformin or 5-aminoimidazole-4 carboxamide riboside decreased MafA protein levels and mRNA expression of insulin and GSIS-related genes (i.e. glut2 and sur1). Overexpression of constitutively active AMPK also reduced MafA and insulin expression. Conversely, pharmacological AMPK inhibition by dorsomorphin (compound C) or expression of a dominant-negative form of AMPK increased MafA and insulin expression under low-glucose conditions. However, AMPK activation or inhibition did not change the expression levels of the beta-cell-enriched transcription factors Pdx1 and Beta2/NeuroD1. AMPK activation accelerated MafA protein degradation, which is not dependent on the proteasome. We also noted that MafA overexpression prevents metformin-induced decreases in insulin and GSIS-related gene expression. These findings indicate that high glucose concentrations inhibit AMPK, thereby increasing MafA protein levels and activating the insulin promoter. PMID- 29348174 TI - Oligomer formation and G-quadruplex binding by purified murine Rif1 protein, a key organizer of higher-order chromatin architecture. AB - Rap1-interacting protein 1 (Rif1) regulates telomere length in budding yeast. We previously reported that, in metazoans and fission yeast, Rif1 also plays pivotal roles in controlling genome-wide DNA replication timing. We proposed that Rif1 may assemble chromatin compartments that contain specific replication-timing domains by promoting chromatin loop formation. Rif1 also is involved in DNA lesion repair, restart after replication fork collapse, anti-apoptosis activities, replicative senescence, and transcriptional regulation. Although multiple physiological functions of Rif1 have been characterized, biochemical and structural information on mammalian Rif1 is limited, mainly because of difficulties in purifying the full-length protein. Here, we expressed and purified the 2418-amino-acid-long, full-length murine Rif1 as well as its partially truncated variants in human 293T cells. Hydrodynamic analyses indicated that Rif1 forms elongated or extended homo-oligomers in solution, consistent with the presence of a HEAT-type helical repeat segment known to adopt an elongated shape. We also observed that the purified murine Rif1 bound G-quadruplex (G4) DNA with high specificity and affinity, as was previously shown for Rif1 from fission yeast. Both the N-terminal (HEAT-repeat) and C-terminal segments were involved in oligomer formation and specifically bound G4 DNA, and the central intrinsically disordered polypeptide segment increased the affinity for G4. Of note, pulldown assays revealed that Rif1 simultaneously binds multiple G4 molecules. Our findings support a model in which Rif1 modulates chromatin loop structures through binding to multiple G4 assemblies and by holding chromatin fibers together. PMID- 29348177 TI - Dasatinib increases endothelial permeability leading to pleural effusion. AB - Pleural effusion is a frequent side-effect of dasatinib, a second-generation tyrosine kinase inhibitor used in the treatment of chronic myelogenous leukaemia. However, the underlying mechanisms remain unknown. We hypothesised that dasatinib alters endothelial integrity, resulting in increased pulmonary vascular endothelial permeability and pleural effusion.To test this, we established the first animal model of dasatinib-related pleural effusion, by treating rats with a daily regimen of high doses of dasatinib (10 mg.kg-1.day-1 for 8 weeks).Pleural ultrasonography revealed that rats chronically treated with dasatinib developed pleural effusion after 5 weeks. Consistent with these in vivo observations, dasatinib led to a rapid and reversible increase in paracellular permeability of human pulmonary endothelial cell monolayers as reflected by increased macromolecule passage, loss of vascular endothelial cadherin and zonula occludens 1 from cell-cell junctions, and the development of actin stress fibres. These results were replicated using human umbilical vein endothelial cells and confirmed by decreased endothelial resistance. Interestingly, we demonstrated that this increased endothelial permeability is a reactive oxygen species (ROS) dependent mechanism in vitro and in vivo using a cotreatment with an antioxidant agent, N-acetylcysteine.This study shows that dasatinib alters pulmonary endothelial permeability in a ROS-dependent manner in vitro and in vivo leading to pleural effusion. PMID- 29348176 TI - Contribution of the tRNAIle 4317A->G mutation to the phenotypic manifestation of the deafness-associated mitochondrial 12S rRNA 1555A->G mutation. AB - The 1555A->G mutation in mitochondrial 12S rRNA has been associated with aminoglycoside-induced and non-syndromic deafness in many individuals worldwide. Mitochondrial genetic modifiers are proposed to influence the phenotypic expression of m.1555A->G mutation. Here, we report that a deafness-susceptibility allele (m.4317A->G) in the tRNAIle gene modulates the phenotype expression of m.1555A->G mutation. Strikingly, a large Han Chinese pedigree carrying both m.4317A->G and m.1555A->G mutations exhibited much higher penetrance of deafness than those carrying only the m.1555A->G mutation. The m.4317A->G mutation affected a highly conserved adenine at position 59 in the T-loop of tRNAIle We therefore hypothesized that the m.4317A->G mutation alters both structure and function of tRNAIle Using lymphoblastoid cell lines derived from members of Chinese families (three carrying both m.1555A->G and m.4317A->G mutations, three harboring only m.1555A->G mutation, and three controls lacking these mutations), we found that the cell lines bearing both m.4317A->G and m.1555A->G mutations exhibited more severe mitochondrial dysfunctions than those carrying only the m.1555A->G mutation. We also found that the m.4317A->G mutation perturbed the conformation, stability, and aminoacylation efficiency of tRNAIle These m.4317A >G mutation-induced alterations in tRNAIle structure and function aggravated the defective mitochondrial translation and respiratory phenotypes associated with the m.1555A->G mutation. Furthermore, mutant cell lines bearing both m.4317A->G and m.1555A->G mutations exhibited greater reductions in the mitochondrial ATP levels and membrane potentials and increasing production of reactive oxygen species than those carrying only the m.1555A->G mutation. Our findings provide new insights into the pathophysiology of maternally inherited deafness arising from the synergy between mitochondrial 12S rRNA and tRNA mutations. PMID- 29348178 TI - A scoring system to predict the elevation of mean pulmonary arterial pressure in idiopathic pulmonary fibrosis. AB - Elevated mean pulmonary arterial pressure (MPAP; >=21 mmHg) is sometimes seen in patients with idiopathic pulmonary fibrosis (IPF) and has an adverse impact upon survival. Although early diagnosis is crucial, there is no established screening tool that uses a combination of noninvasive examinations.We retrospectively analysed IPF patients at initial evaluation from April 2007 to July 2015 and, using logistic regression analysis, created a screening tool to identify elevated MPAP. Internal validation was also assessed for external validity using a bootstrap method.Using right-heart catheterisation (RHC), elevation of MPAP was determined to be present in 55 out of 273 patients. Multivariate models demonstrated that % predicted diffusing capacity of the lung for carbon monoxide (DLCO) <50%, ratio of pulmonary artery diameter to aorta diameter (PA/Ao) on computed tomography (CT) >=0.9 and arterial oxygen tension (PaO2 ) <80 Torr were independent predictors. When we assigned a single point to each variable, the prevalence of elevation of MPAP with a score of zero, one, two or three points was 6.7%, 16.0%, 29.1% and 65.4%, respectively. The area under curve (AUC) for the receiver operating characteristic (ROC) curve was good at 0.757 (95% CI 0.682 0.833).A simple clinical scoring system consisting of % predicted DLCO, PA/Ao ratio on CT and PaO2 can easily predict elevation of MPAP in patients with IPF. PMID- 29348179 TI - Cigarette smoking and response to inhaled corticosteroids in COPD. PMID- 29348180 TI - Persistently elevated exhaled nitric oxide fraction is associated with increased risk of exacerbation in COPD. AB - Preventing the occurrence of acute exacerbations of chronic obstructive pulmonary disease (AECOPD) is a major therapeutic goal. We hypothesise that persistently increased levels of exhaled nitric oxide (FeNO) during follow-up can identify a group of COPD patients at higher risk of AECOPD.To test this hypothesis, we measured FeNO levels (HypAir FeNO(r), Medisoft; Sorinnes, Belgium) prospectively in 226 clinically stable COPD outpatients at recruitment and during follow-up (at 6 and 12 months). Patients were stratified according to the number of visits with FeNO >=20 ppb.FeNO was <20 ppb in all three visits in 44.2% of patients, 29.6% in visit 1 and 26.1% in visit 2 or 3. These three groups suffered progressively higher AECOPD rates during follow-up (0.67, 0.91 and 1.42, respectively, p<0.001). After adjusting for potential confounding variables (log-rank test), the hazard ratio for AECOPD was higher in the latter group (1.579 (95% CI 1.049 2.378), p=0.029). Likewise, time to first moderate and severe AECOPD was shorter in these patients. Finally, there was no relationship between FeNO levels and circulating eosinophils.Persistent FeNO levels >=20 ppb in clinically stable COPD outpatients are associated with a significantly higher risk of AECOPD. PMID- 29348181 TI - Intensity of exposure to pulmonary tuberculosis determines risk of tuberculosis infection and disease. AB - Household contacts of pulmonary tuberculosis (TB) patients are at increased risk of TB infection and disease. However, their risk in relation to the intensity of exposure remains unknown.We studied smear-positive TB cases and their household contacts in Vitoria, Brazil. We collected clinical, demographic and radiographic information from TB cases, and obtained tuberculin skin test (TST) and QuantiFERON-TB Gold (QFT) results from household contacts. We measured intensity of exposure using a proximity score and sleep location in relation to the TB index case and defined infection by TST >=10 mm or QFT >=0.35 UI.mL-1 We ascertained secondary TB cases by reviewing local and nationwide case registries.We included 160 TB index cases and 894 household contacts. 464 (65%) had TB infection and 23 (2.6%) developed TB disease. Risk of TB infection and disease increased with more intense exposures. In an adjusted analysis, the proximity score was associated with TB disease (OR 1.61, 95% CI 1.25-2.08; p<0.000); however, its diagnostic performance was only moderate.Intensity of exposure increased risk of TB infection and disease among household contacts; however, its diagnostic performance was still suboptimal. A biomarker to target preventive therapy is urgently needed in this at-risk population. PMID- 29348182 TI - Trends in mortality from idiopathic pulmonary fibrosis in the European Union: an observational study of the WHO mortality database from 2001-2013. AB - Idiopathic pulmonary fibrosis (IPF) is the most common of the idiopathic interstitial pneumonias and is characterised by progressive accumulation of scar tissue in the lungs. The objective of this study was to describe the current mortality rates due to IPF in Europe, based on the World Health Organization (WHO) mortality database.We used country-level data for IPF mortality, identified in the WHO mortality database using International Classification of Diseases 10th Edition (ICD-10) codes, for the period 2001-2013. Joinpoint analysis was performed to describe trends throughout the observation period.The median mortality was 3.75 per 100 000 (interquartile range (IQR) 1.37-5.30) and 1.50 per 100 000 (IQR 0.65-2.02) for males and females, respectively. IPF mortality increased in the majority of the European Union (EU) countries with the exceptions of Denmark, Croatia, Austria and Romania. There was a significant disparity in rates across Europe, in the range 0.41-12.1 per 100 000 for men and 0.24-5.63 per 100 000 for women. The most notable increases were observed in the United Kingdom and Finland. Rates were also substantially higher in males, with sex disparity increasing across the period.The reported IPF mortality appears to be increasing across the EU; however, there is substantial variation in mortality trends and overall reported mortality rates between countries. PMID- 29348183 TI - Neurophysiological mechanisms of exertional dyspnoea in fibrotic interstitial lung disease. AB - Our understanding of the mechanisms of dyspnoea in fibrotic interstitial lung disease (ILD) is incomplete. The aims of this study were two-fold: 1) to determine whether dyspnoea intensity is better predicted by neural respiratory drive (NRD) or neuromechanical uncoupling (NMU) of the respiratory system in fibrotic ILD, and 2) to examine the effect of breathing 60% oxygen on NRD, NMU and dyspnoea ratings.Fourteen patients with fibrotic ILD were included. Visit 1 comprised a familiarisation incremental cycle exercise test, Visit 2 comprised a normoxic incremental cycling test to address Aim 1, and Visits 3 and 4 consisted of constant-load cycling while breathing room air or 60% oxygen to address Aim 2. Diaphragmatic electromyography (EMGdi) was used as a surrogate of NRD. NMU was calculated as the ratio between EMGdi (%max) and tidal volume (%vital capacity).On adjusted analysis, NMU and its constituents were all significantly associated with dyspnoea ratings during incremental cycling, with EMGdi having the strongest correlation. The between-treatment change in dyspnoea ratings during constant load cycling was only correlated with change in exercise endurance time and NMU.Dyspnoea more strongly reflected the level of EMGdi than NMU in fibrotic ILD. However, the improvement in dyspnoea with 60% oxygen was better predicted by improvements in NMU. PMID- 29348184 TI - Improved identification of thrombolysis candidates amongst intermediate-risk pulmonary embolism patients: implications for future trials. PMID- 29348185 TI - Daily home spirometry to detect early steroid treatment effects in newly treated pulmonary sarcoidosis. PMID- 29348186 TI - Can YKL-40 be used as a biomarker and therapeutic target for adult asthma? PMID- 29348187 TI - The increasing mortality of idiopathic pulmonary fibrosis: fact or fallacy? PMID- 29348188 TI - The unmet medical need of pulmonary hypertension in idiopathic pulmonary fibrosis. PMID- 29348189 TI - Cancer Stem Cell Phenotypes in ER+ Breast Cancer Models Are Promoted by PELP1/AIB1 Complexes. AB - Proline, glutamic acid, leucine-rich protein 1 (PELP1) is overexpressed in approximately 80% of invasive breast tumors. PELP1 dynamically shuttles between the nucleus and cytoplasm, but is primarily nuclear in normal breast tissue. However, altered localization of PELP1 to the cytoplasm is an oncogenic event that promotes breast cancer initiation and progression. Herein, interacting partners unique to cytoplasmic PELP1 and the mechanisms by which these interactions promote oncogenic PELP1 signaling were sought. AIB1 (amplified in breast cancer 1; also known as SRC-3 or NCOA3) was identified as a novel binding partner of cytoplasmic PELP1 in both estrogen receptor-positive (ER+) and ER negative cell lines. Cytoplasmic PELP1 expression elevated basal phosphorylation levels (i.e., activation) of AIB1 at Thr24, enhanced ALDH+ tumorsphere formation, and upregulated specific target genes independently of hormone stimulation. Direct manipulation of AIB1 levels using shRNA abrogated cytoplasmic PELP1 induced tumorsphere formation and downregulated cytoplasmic PELP1-specific target genes. SI-2, an AIB1 inhibitor, limited the PELP1/AIB1 interaction and decreased cytoplasmic PELP1-induced tumorsphere formation. Similar results were observed in a murine-derived MMTV-AIB1 tumor cell line. Furthermore, in vivo syngeneic tumor studies revealed that PELP1 knockdown resulted in increased survival of tumor bearing mice as compared with mice injected with control cells.Implications: These data demonstrate that cytoplasmic PELP1/AIB1-containing complexes function to promote advanced cancer phenotypes, including outgrowth of stem-like cells, associated with estrogen-independent breast cancer progression. Mol Cancer Res; 16(4); 707-19. (c)2018 AACR. PMID- 29348192 TI - Differential Contributions of Nucleus Accumbens Subregions to Cue-Guided Risk/Reward Decision Making and Implementation of Conditional Rules. AB - The nucleus accumbens (NAc) is a key node within corticolimbic circuitry for guiding action selection and cost/benefit decision making in situations involving reward uncertainty. Preclinical studies have typically assessed risk/reward decision making using assays where decisions are guided by internally generated representations of choice-outcome contingencies. Yet, real-life decisions are often influenced by external stimuli that inform about likelihoods of obtaining rewards. How different subregions of the NAc mediate decision making in such situations is unclear. Here, we used a novel assay colloquially termed the "Blackjack" task that models these types of situations. Male Long-Evans rats were trained to choose between one lever that always delivered a one-pellet reward and another that delivered four pellets with different probabilities [either 50% (good-odds) or 12.5% (poor-odds)], which were signaled by one of two auditory cues. Under control conditions, rats selected the large/risky option more often on good-odds versus poor-odds trials. Inactivation of the NAc core caused indiscriminate choice patterns. In contrast, NAc shell inactivation increased risky choice, more prominently on poor-odds trials. Additional experiments revealed that both subregions contribute to auditory conditional discrimination. NAc core or shell inactivation reduced Pavlovian approach elicited by an auditory CS+, yet shell inactivation also increased responding during presentation of a CS . These data highlight distinct contributions for NAc subregions in decision making and reward seeking guided by discriminative stimuli. The core is crucial for implementation of conditional rules, whereas the shell refines reward seeking by mitigating the allure of larger, unlikely rewards and reducing expression of inappropriate or non-rewarded actions.SIGNIFICANCE STATEMENT Using external cues to guide decision making is crucial for adaptive behavior. Deficits in cue-guided behavior have been associated with neuropsychiatric disorders, such as attention deficit hyperactivity disorder and schizophrenia, which in turn has been linked to aberrant processing in the nucleus accumbens. However, many preclinical studies have often assessed risk/reward decision making in the absence of explicit cues. The current study fills that gap by using a novel task that allows for the assessment of cue-guided risk/reward decision making in rodents. Our findings identified distinct yet complementary roles for the medial versus lateral portions of this nucleus that provide a broader understanding of the differential contributions it makes to decision making and reward seeking guided by discriminative stimuli. PMID- 29348190 TI - Pronounced Hyperactivity, Cognitive Dysfunctions, and BDNF Dysregulation in Dopamine Transporter Knock-out Rats. AB - Dopamine (DA) controls many vital physiological functions and is critically involved in several neuropsychiatric disorders such as schizophrenia and attention deficit hyperactivity disorder. The major function of the plasma membrane dopamine transporter (DAT) is the rapid uptake of released DA into presynaptic nerve terminals leading to control of both the extracellular levels of DA and the intracellular stores of DA. Here, we present a newly developed strain of rats in which the gene encoding DAT knockout Rats (DAT-KO) has been disrupted by using zinc finger nuclease technology. Male and female DAT-KO rats develop normally but weigh less than heterozygote and wild-type rats and demonstrate pronounced spontaneous locomotor hyperactivity. While striatal extracellular DA lifetime and concentrations are significantly increased, the total tissue content of DA is markedly decreased demonstrating the key role of DAT in the control of DA neurotransmission. Hyperactivity of DAT-KO rats can be counteracted by amphetamine, methylphenidate, the partial Trace Amine-Associated Receptor 1 (TAAR1) agonist RO5203648 ((S)-4-(3,4-Dichloro-phenyl)-4,5-dihydro oxazol-2-ylamine) and haloperidol. DAT-KO rats also demonstrate a deficit in working memory and sensorimotor gating tests, less propensity to develop obsessive behaviors and show strong dysregulation in frontostriatal BDNF function. DAT-KO rats could provide a novel translational model for human diseases involving aberrant DA function and/or mutations affecting DAT or related regulatory mechanisms.SIGNIFICANCE STATEMENT Here, we present a newly developed strain of rats in which the gene encoding the dopamine transporter (DAT) has been disrupted (Dopamine Transporter Knockout rats [DAT-KO rats]). DAT-KO rats display functional hyperdopaminergia accompanied by pronounced spontaneous locomotor hyperactivity. Hyperactivity of DAT-KO rats can be counteracted by amphetamine, methylphenidate, and a few other compounds exerting inhibitory action on dopamine dependent hyperactivity. DAT-KO rats also demonstrate cognitive deficits in working memory and sensorimotor gating tests, less propensity to develop compulsive behaviors, and strong dysregulation in frontostriatal BDNF function. These observations highlight the key role of DAT in the control of brain dopaminergic transmission. DAT-KO rats could provide a novel translational model for human diseases involving aberrant dopamine functions. PMID- 29348193 TI - Heartbeat: Computed tomographic coronary angiography in patients with possible angina. PMID- 29348191 TI - Multimodal Encoding of Novelty, Reward, and Learning in the Primate Nucleus Basalis of Meynert. AB - Associative learning is crucial for daily function, involving a complex network of brain regions. One region, the nucleus basalis of Meynert (NBM), is a highly interconnected, largely cholinergic structure implicated in multiple aspects of learning. We show that single neurons in the NBM of nonhuman primates (NHPs; n = 2 males; Macaca mulatta) encode learning a new association through spike rate modulation. However, the power of low-frequency local field potential (LFP) oscillations decreases in response to novel, not-yet-learned stimuli but then increase as learning progresses. Both NBM and the dorsolateral prefrontal cortex encode confidence in novel associations by increasing low- and high-frequency LFP power in anticipation of expected rewards. Finally, NBM high-frequency power dynamics are anticorrelated with spike rate modulations. Therefore, novelty, learning, and reward anticipation are separately encoded through differentiable NBM signals. By signaling both the need to learn and confidence in newly acquired associations, NBM may play a key role in coordinating cortical activity throughout the learning process.SIGNIFICANCE STATEMENT Degradation of cells in a key brain region, the nucleus basalis of Meynert (NBM), correlates with Alzheimer's disease and Parkinson's disease progression. To better understand the role of this brain structure in learning and memory, we examined neural activity in the NBM in behaving nonhuman primates while they performed a learning and memory task. We found that single neurons in NBM encoded both salience and an early learning, or cognitive state, whereas populations of neurons in the NBM and prefrontal cortex encode learned state and reward anticipation. The NBM may thus encode multiple stages of learning. These multimodal signals might be leveraged in future studies to develop neural stimulation to facilitate different stages of learning and memory. PMID- 29348194 TI - Health Care Costs Associated With Incident Complications in Patients With Type 2 Diabetes in Germany. AB - OBJECTIVE: The aim of this study is to provide reliable regression-based estimates of costs associated with different type 2 diabetes complications. RESEARCH DESIGN AND METHODS: We used nationwide statutory health insurance (SHI) data from 316,220 patients with type 2 diabetes. Costs for inpatient and outpatient care, pharmaceuticals, rehabilitation, and nonmedical aids and appliances were assessed in the years 2013-2015. Quarterly observations are available for each year. We estimated costs (in 2015 euro) for complications using a generalized estimating equations model with a normal distribution adjusted for age, sex, occurrence of different complications, and history of complications at baseline, 2012. Two- and threefold interactions were included in an extended model. RESULTS: The base case model estimated total costs in the quarter of event for the example of a 60- to 69-year-old man as follows: diabetic foot ?1,293, amputation ?14,284, retinopathy ?671, blindness ?2,933, nephropathy ?3,353, end-stage renal disease (ESRD) ?22,691, nonfatal stroke ?9,769, fatal stroke ?11,176, nonfatal myocardial infarction (MI)/cardiac arrest (CA) ?8,035, fatal MI/CA ?8,700, nonfatal ischemic heart disease (IHD) ?6,548, fatal IHD ?20,942, chronic heart failure ?3,912, and angina pectoris ?2,695. In the subsequent quarters, costs ranged from ?681 for retinopathy to ?6,130 for ESRD. CONCLUSIONS: Type 2 diabetes complications have a significant impact on total health care costs in the SHI system, not only in the quarter of event but also in subsequent years. Men and women from different age-groups differ in their costs for complications. Our comprehensive estimates may support the parametrization of diabetes models and help clinicians and policy makers to quantify the economic burden of diabetes complications in the context of new prevention and treatment programs. PMID- 29348195 TI - Morbidity and Mortality in Small for Gestational Age Infants at 22 to 29 Weeks' Gestation. AB - OBJECTIVES: To identify the relative risks of mortality and morbidities for small for gestational age (SGA) infants in comparison with non-SGA infants born at 22 to 29 weeks' gestation. METHODS: Data were collected (2006-2014) on 156 587 infants from 852 US centers participating in the Vermont Oxford Network. We defined SGA as sex-specific birth weight <10th centile for gestational age (GA) in days. Binomial generalized additive models with a thin plate spline term on GA by SGA were used to calculate the adjusted relative risks and 95% confidence intervals for outcomes by GA. RESULTS: Compared with non-SGA infants, the risk of patent ductus arteriosus decreased for SGA infants in early GA and then increased in later GA. SGA infants were also at increased risks of mortality, respiratory distress syndrome, necrotizing enterocolitis, late-onset sepsis, severe retinopathy of prematurity, and chronic lung disease. These risks of adverse outcomes, however, were not homogeneous across the GA range. Early-onset sepsis was not different between the 2 groups for the majority of GAs, although severe intraventricular hemorrhage was decreased among SGA infants for only gestational week 24 through week 25. CONCLUSIONS: SGA was associated with additional risks to mortality and morbidities, but the risks differed across the GA range. PMID- 29348196 TI - Placental Findings and Effect of Prophylactic Hydrocortisone in Extremely Preterm Infants. AB - OBJECTIVES: To investigate the relationship between histologic findings of the placenta and response to early postnatal hydrocortisone treatment used to prevent bronchopulmonary dysplasia (BPD) in extremely preterm infants. METHODS: In an exploratory analysis of the Early Low-Dose Hydrocortisone to Improve Survival Without Bronchopulmonary Dysplasia in Extremely Preterm Infants (PREMILOC) trial, detailed placental analyses were performed on the basis of standardized macroscopic and histologic examinations. Placental histology, categorized into 3 groups, was correlated to neonatal outcomes and response to hydrocortisone treatment. RESULTS: Of 523 randomly assigned patients, 457 placentas were analyzed. In total, 125 out of 457 (27%) placentas were classified as normal, 236 out of 457 (52%) placentas were classified as inflammatory, and 96 out of 457 (21%) placentas were classified as vascular. Placental inflammation was associated with a significant, increased rate of BPD-free survival at 36 weeks' postmenstrual age, independent of gestational age, treatment group, and sex (adjusted odds ratio: 1.72, 95% confidence interval [CI]: 1.05 to 2.82, P = .03). Regarding the response to treatment, the strongest benefit of hydrocortisone compared with placebo was found in infants born after placental vascular disease, with significantly more patients extubated at day 10 (risk difference: 0.32, 95% CI: 0.08 to 0.56, P = .004) and similar positive direction on survival without BPD (risk difference: 0.23, 95% CI: 0.00 to 0.46, P = .06). Adjusted to gestational age and treatment groups, placental inflammation was associated with significantly fewer patent ductus arteriosus ligation (adjusted hazard ratio: 0.58, 95% CI: 0.36 to 0.95, P = .03). Placental histology was not found to be associated with other adverse events related to preterm birth. CONCLUSIONS: With these findings, we confirm that early low-dose hydrocortisone confers benefits in extremely preterm infants overall and we suggest there is a higher treatment effect in those born after placental vascular disease. PMID- 29348197 TI - Tackling hearing loss to improve the care of older adults. PMID- 29348198 TI - Interleukin-10 stiffens the heart. AB - Cardiac-resident macrophages are a diverse population of cells that have a critical role in the pathogenesis of heart failure. A new understanding of communication between macrophages and cardiac fibroblasts could lead to novel therapeutic strategies for heart failure with preserved ejection function. PMID- 29348199 TI - Origins of low-symmetry phases in asymmetric diblock copolymer melts. AB - Cooling disordered compositionally asymmetric diblock copolymers leads to the formation of nearly spherical particles, each containing hundreds of molecules, which crystallize upon cooling below the order-disorder transition temperature (TODT). Self-consistent field theory (SCFT) reveals that dispersity in the block degrees of polymerization stabilizes various Frank-Kasper phases, including the C14 and C15 Laves phases, which have been accessed experimentally in low-molar mass poly(isoprene)-b-poly(lactide) (PI-PLA) diblock copolymers using thermal processing strategies. Heating and cooling a specimen containing 15% PLA above and below the TODT from the body-centered cubic (BCC) or C14 states regenerates the same crystalline order established at lower temperatures. This memory effect is also demonstrated with a specimen containing 20% PLA, which recrystallizes to either C15 or hexagonally ordered cylinders (HEXC) upon heating and cooling. The process-path-dependent formation of crystalline order shapes the number of particles per unit volume, n/V, which is retained in the highly structured disordered liquid as revealed by small-angle X-ray scattering (SAXS) experiments. We hypothesize that symmetry breaking during crystallization is governed by the particle number density imprinted in the liquid during ordering at lower temperature, and this metastable liquid is kinetically constrained from equilibrating due to prohibitively large free energy barriers for micelle fusion and fission. Ordering at fixed n/V is enabled by facile chain exchange, which redistributes mass as required to meet the multiple particle sizes and packing associated with specific low-symmetry Frank-Kasper phases. This discovery exposes universal concepts related to order and disorder in self-assembled soft materials. PMID- 29348200 TI - Active learning machine learns to create new quantum experiments. AB - How useful can machine learning be in a quantum laboratory? Here we raise the question of the potential of intelligent machines in the context of scientific research. A major motivation for the present work is the unknown reachability of various entanglement classes in quantum experiments. We investigate this question by using the projective simulation model, a physics-oriented approach to artificial intelligence. In our approach, the projective simulation system is challenged to design complex photonic quantum experiments that produce high dimensional entangled multiphoton states, which are of high interest in modern quantum experiments. The artificial intelligence system learns to create a variety of entangled states and improves the efficiency of their realization. In the process, the system autonomously (re)discovers experimental techniques which are only now becoming standard in modern quantum optical experiments-a trait which was not explicitly demanded from the system but emerged through the process of learning. Such features highlight the possibility that machines could have a significantly more creative role in future research. PMID- 29348201 TI - Solution structure of sperm lysin yields novel insights into molecular dynamics of rapid protein evolution. AB - Protein evolution is driven by the sum of different physiochemical and genetic processes that usually results in strong purifying selection to maintain biochemical functions. However, proteins that are part of systems under arms race dynamics often evolve at unparalleled rates that can produce atypical biochemical properties. In the marine mollusk abalone, lysin and vitelline envelope receptor for lysin (VERL) are a pair of rapidly coevolving proteins that are essential for species-specific interactions between sperm and egg. Despite extensive biochemical characterization of lysin-including crystal structures of multiple orthologs-it was unclear how sites under positive selection may facilitate recognition of VERL. Using a combination of targeted mutagenesis and multidimensional NMR, we present a high-definition solution structure of sperm lysin from red abalone (Haliotis rufescens). Unapparent from the crystallography data, multiple NMR-based analyses conducted in solution reveal clustering of the N and C termini to form a nexus of 13 positively selected sites that constitute a VERL binding interface. Evolutionary rate was found to be a significant predictor of backbone flexibility, which may be critical for lysin bioactivity and/or accelerated evolution. Flexible, rapidly evolving segments that constitute the VERL binding interface were also the most distorted regions of the crystal structure relative to what was observed in solution. While lysin has been the subject of extensive biochemical and evolutionary analyses for more than 30 years, this study highlights the enhanced insights gained from applying NMR approaches to rapidly evolving proteins. PMID- 29348202 TI - Molecular characterization of latent GDF8 reveals mechanisms of activation. AB - Growth/differentiation factor 8 (GDF8), or myostatin, negatively regulates muscle mass. GDF8 is held in a latent state through interactions with its N-terminal prodomain, much like TGF-beta. Using a combination of small-angle X-ray scattering and mutagenesis, we characterized the interactions of GDF8 with its prodomain. Our results show that the prodomain:GDF8 complex can exist in a fully latent state and an activated or "triggered" state where the prodomain remains in complex with the mature domain. However, these states are not reversible, indicating the latent GDF8 is "spring-loaded." Structural analysis shows that the prodomain:GDF8 complex adopts an "open" configuration, distinct from the latency state of TGF-beta and more similar to the open state of Activin A and BMP9 (nonlatent complexes). We determined that GDF8 maintains similar features for latency, including the alpha-1 helix and fastener elements, and identified a series of mutations in the prodomain of GDF8 that alleviate latency, including I56E, which does not require activation by the protease Tolloid. In vivo, active GDF8 variants were potent negative regulators of muscle mass, compared with WT GDF8. Collectively, these results help characterize the latency and activation mechanisms of GDF8. PMID- 29348203 TI - Infectious virus in exhaled breath of symptomatic seasonal influenza cases from a college community. AB - Little is known about the amount and infectiousness of influenza virus shed into exhaled breath. This contributes to uncertainty about the importance of airborne influenza transmission. We screened 355 symptomatic volunteers with acute respiratory illness and report 142 cases with confirmed influenza infection who provided 218 paired nasopharyngeal (NP) and 30-minute breath samples (coarse >5 um and fine <=5-um fractions) on days 1-3 after symptom onset. We assessed viral RNA copy number for all samples and cultured NP swabs and fine aerosols. We recovered infectious virus from 52 (39%) of the fine aerosols and 150 (89%) of the NP swabs with valid cultures. The geometric mean RNA copy numbers were 3.8 * 104/30-minutes fine-, 1.2 * 104/30-minutes coarse-aerosol sample, and 8.2 * 108 per NP swab. Fine- and coarse-aerosol viral RNA were positively associated with body mass index and number of coughs and negatively associated with increasing days since symptom onset in adjusted models. Fine-aerosol viral RNA was also positively associated with having influenza vaccination for both the current and prior season. NP swab viral RNA was positively associated with upper respiratory symptoms and negatively associated with age but was not significantly associated with fine- or coarse-aerosol viral RNA or their predictors. Sneezing was rare, and sneezing and coughing were not necessary for infectious aerosol generation. Our observations suggest that influenza infection in the upper and lower airways are compartmentalized and independent. PMID- 29348204 TI - Tumor suppressor APC is an attenuator of spindle-pulling forces during C. elegans asymmetric cell division. AB - The adenomatous polyposis coli (APC) tumor suppressor has dual functions in Wnt/beta-catenin signaling and accurate chromosome segregation and is frequently mutated in colorectal cancers. Although APC contributes to proper cell division, the underlying mechanisms remain poorly understood. Here we show that Caenorhabditis elegans APR-1/APC is an attenuator of the pulling forces acting on the mitotic spindle. During asymmetric cell division of the C. elegans zygote, a LIN-5/NuMA protein complex localizes dynein to the cell cortex to generate pulling forces on astral microtubules that position the mitotic spindle. We found that APR-1 localizes to the anterior cell cortex in a Par-aPKC polarity-dependent manner and suppresses anterior centrosome movements. Our combined cell biological and mathematical analyses support the conclusion that cortical APR-1 reduces force generation by stabilizing microtubule plus-ends at the cell cortex. Furthermore, APR-1 functions in coordination with LIN-5 phosphorylation to attenuate spindle-pulling forces. Our results document a physical basis for the attenuation of spindle-pulling force, which may be generally used in asymmetric cell division and, when disrupted, potentially contributes to division defects in cancer. PMID- 29348205 TI - Structure of the fission yeast actomyosin ring during constriction. AB - Cell division in many eukaryotes is driven by a ring containing actin and myosin. While much is known about the main proteins involved, the precise arrangement of actin filaments within the contractile machinery, and how force is transmitted to the membrane, remains unclear. Here we use cryosectioning and cryofocused ion beam milling to gain access to cryopreserved actomyosin rings in Schizosaccharomyces pombe for direct 3D imaging by electron cryotomography. Our results show that straight, overlapping actin filaments, running nearly parallel to each other and to the membrane, form a loose bundle of ~150 nm in diameter that "saddles" the inward-bending membrane at the leading edge of the division septum. The filaments do not make direct contact with the membrane. Our analysis of the actin filaments reveals the variability in filament number, nearest neighbor distances between filaments within the bundle, their distance from the membrane, and angular distribution with respect to the membrane. PMID- 29348206 TI - Rotational 3D printing of damage-tolerant composites with programmable mechanics. AB - Natural composites exhibit exceptional mechanical performance that often arises from complex fiber arrangements within continuous matrices. Inspired by these natural systems, we developed a rotational 3D printing method that enables spatially controlled orientation of short fibers in polymer matrices solely by varying the nozzle rotation speed relative to the printing speed. Using this method, we fabricated carbon fiber-epoxy composites composed of volume elements (voxels) with programmably defined fiber arrangements, including adjacent regions with orthogonally and helically oriented fibers that lead to nonuniform strain and failure as well as those with purely helical fiber orientations akin to natural composites that exhibit enhanced damage tolerance. Our approach broadens the design, microstructural complexity, and performance space for fiber reinforced composites through site-specific optimization of their fiber orientation, strain, failure, and damage tolerance. PMID- 29348207 TI - QnAs with Frank S. Bates. PMID- 29348208 TI - Learning to make external sensory stimulus predictions using internal correlations in populations of neurons. AB - To compensate for sensory processing delays, the visual system must make predictions to ensure timely and appropriate behaviors. Recent work has found predictive information about the stimulus in neural populations early in vision processing, starting in the retina. However, to utilize this information, cells downstream must be able to read out the predictive information from the spiking activity of retinal ganglion cells. Here we investigate whether a downstream cell could learn efficient encoding of predictive information in its inputs from the correlations in the inputs themselves, in the absence of other instructive signals. We simulate learning driven by spiking activity recorded in salamander retina. We model a downstream cell as a binary neuron receiving a small group of weighted inputs and quantify the predictive information between activity in the binary neuron and future input. Input weights change according to spike timing dependent learning rules during a training period. We characterize the readouts learned under spike timing-dependent synaptic update rules, finding that although the fixed points of learning dynamics are not associated with absolute optimal readouts they convey nearly all of the information conveyed by the optimal readout. Moreover, we find that learned perceptrons transmit position and velocity information of a moving-bar stimulus nearly as efficiently as optimal perceptrons. We conclude that predictive information is, in principle, readable from the perspective of downstream neurons in the absence of other inputs. This suggests an important role for feedforward prediction in sensory encoding. PMID- 29348209 TI - Influence of water and enzyme SpnF on the dynamics and energetics of the ambimodal [6+4]/[4+2] cycloaddition. AB - SpnF is the first monofunctional Diels-Alder/[6+4]-ase that catalyzes a reaction leading to both Diels-Alder and [6+4] adducts through a single transition state. The environment-perturbed transition-state sampling method has been developed to calculate free energies, kinetic isotope effects, and quasi-classical reaction trajectories of enzyme-catalyzed reactions and the uncatalyzed reaction in water. Energetics calculated in this way reproduce the experiment and show that the normal Diels-Alder transition state is stabilized by H bonds with water molecules, while the ambimodal transition state is favored in the enzyme SpnF by both intramolecular hydrogen bonding and hydrophobic binding. Molecular dynamics simulations show that trajectories passing through the ambimodal transition state bifurcate to the [6+4] adduct and the Diels-Alder adduct with a ratio of 1:1 in the gas phase, 1:1.6 in water, and 1:11 in the enzyme. This example shows how an enzyme acts on a vibrational time scale to steer post-transition state trajectories toward the Diels-Alder adduct. PMID- 29348212 TI - The 1918 flu, 100 years later. PMID- 29348213 TI - News at a glance. PMID- 29348214 TI - Newborn exoplanet eyed for moons and rings. PMID- 29348210 TI - Toward dynamic structural biology: Two decades of single-molecule Forster resonance energy transfer. AB - Classical structural biology can only provide static snapshots of biomacromolecules. Single-molecule Forster resonance energy transfer (smFRET) paved the way for studying dynamics in macromolecular structures under biologically relevant conditions. Since its first implementation in 1996, smFRET experiments have confirmed previously hypothesized mechanisms and provided new insights into many fundamental biological processes, such as DNA maintenance and repair, transcription, translation, and membrane transport. We review 22 years of contributions of smFRET to our understanding of basic mechanisms in biochemistry, molecular biology, and structural biology. Additionally, building on current state-of-the-art implementations of smFRET, we highlight possible future directions for smFRET in applications such as biosensing, high-throughput screening, and molecular diagnostics. PMID- 29348215 TI - 'Liquid biopsy' for cancer promises early detection. PMID- 29348211 TI - Membrane protein insertion through a mitochondrial beta-barrel gate. AB - The biogenesis of mitochondria, chloroplasts, and Gram-negative bacteria requires the insertion of beta-barrel proteins into the outer membranes. Homologous Omp85 proteins are essential for membrane insertion of beta-barrel precursors. It is unknown if precursors are threaded through the Omp85-channel interior and exit laterally or if they are translocated into the membrane at the Omp85-lipid interface. We have mapped the interaction of a precursor in transit with the mitochondrial Omp85-channel Sam50 in the native membrane environment. The precursor is translocated into the channel interior, interacts with an internal loop, and inserts into the lateral gate by beta-signal exchange. Transport through the Omp85-channel interior followed by release through the lateral gate into the lipid phase may represent a basic mechanism for membrane insertion of beta-barrel proteins. PMID- 29348216 TI - Tamed immune reaction aids pregnancy. PMID- 29348217 TI - Tensions flare over electric fishing in European waters. PMID- 29348218 TI - Rochester roiled by fallout from sexual harassment case. PMID- 29348219 TI - Are algorithms good judges? PMID- 29348220 TI - The believer. PMID- 29348221 TI - Assessing nature's contributions to people. PMID- 29348222 TI - The art of manufacturing molecules. PMID- 29348223 TI - Quantum liquids get thin. PMID- 29348224 TI - A bacterial coat that is not pure cotton. PMID- 29348225 TI - Taking down defenses to improve vaccines. PMID- 29348226 TI - Remote control of nanoscale devices. PMID- 29348227 TI - Ben Barres (1954-2017). PMID- 29348228 TI - The pitfalls of taking science to the public. PMID- 29348229 TI - Vaccine mandates in France will save lives. PMID- 29348230 TI - Have your momos and eat them, too. PMID- 29348232 TI - A self-assembled nanoscale robotic arm controlled by electric fields. AB - The use of dynamic, self-assembled DNA nanostructures in the context of nanorobotics requires fast and reliable actuation mechanisms. We therefore created a 55-nanometer-by-55-nanometer DNA-based molecular platform with an integrated robotic arm of length 25 nanometers, which can be extended to more than 400 nanometers and actuated with externally applied electrical fields. Precise, computer-controlled switching of the arm between arbitrary positions on the platform can be achieved within milliseconds, as demonstrated with single pair Forster resonance energy transfer experiments and fluorescence microscopy. The arm can be used for electrically driven transport of molecules or nanoparticles over tens of nanometers, which is useful for the control of photonic and plasmonic processes. Application of piconewton forces by the robot arm is demonstrated in force-induced DNA duplex melting experiments. PMID- 29348231 TI - Genome-wide identification of interferon-sensitive mutations enables influenza vaccine design. AB - In conventional attenuated viral vaccines, immunogenicity is often suboptimal. Here we present a systematic approach for vaccine development that eliminates interferon (IFN)-modulating functions genome-wide while maintaining virus replication fitness. We applied a quantitative high-throughput genomics system to influenza A virus that simultaneously measured the replication fitness and IFN sensitivity of mutations across the entire genome. By incorporating eight IFN sensitive mutations, we generated a hyper-interferon-sensitive (HIS) virus as a vaccine candidate. HIS virus is highly attenuated in IFN-competent hosts but able to induce transient IFN responses, elicits robust humoral and cellular immune responses, and provides protection against homologous and heterologous viral challenges. Our approach, which attenuates the virus and promotes immune responses concurrently, is broadly applicable for vaccine development against other pathogens. PMID- 29348233 TI - Hydraulic fracturing volume is associated with induced earthquake productivity in the Duvernay play. AB - A sharp increase in the frequency of earthquakes near Fox Creek, Alberta, began in December 2013 in response to hydraulic fracturing. Using a hydraulic fracturing database, we explore relationships between injection parameters and seismicity response. We show that induced earthquakes are associated with completions that used larger injection volumes (104 to 105 cubic meters) and that seismic productivity scales linearly with injection volume. Injection pressure and rate have an insignificant association with seismic response. Further findings suggest that geological factors play a prominent role in seismic productivity, as evidenced by spatial correlations. Together, volume and geological factors account for ~96% of the variability in the induced earthquake rate near Fox Creek. This result is quantified by a seismogenic index-modified frequency-magnitude distribution, providing a framework to forecast induced seismicity. PMID- 29348234 TI - Chiromagnetic nanoparticles and gels. AB - Chiral inorganic nanostructures have high circular dichroism, but real-time control of their optical activity has so far been achieved only by irreversible chemical changes. Field modulation is a far more desirable path to chiroptical devices. We hypothesized that magnetic field modulation can be attained for chiral nanostructures with large contributions of the magnetic transition dipole moments to polarization rotation. We found that dispersions and gels of paramagnetic Co3O4 nanoparticles with chiral distortions of the crystal lattices exhibited chiroptical activity in the visible range that was 10 times as strong as that of nonparamagnetic nanoparticles of comparable size. Transparency of the nanoparticle gels to circularly polarized light beams in the ultraviolet range was reversibly modulated by magnetic fields. These phenomena were also observed for other nanoscale metal oxides with lattice distortions from imprinted amino acids and other chiral ligands. The large family of chiral ceramic nanostructures and gels can be pivotal for new technologies and knowledge at the nexus of chirality and magnetism. PMID- 29348235 TI - Digitization of multistep organic synthesis in reactionware for on-demand pharmaceuticals. AB - Chemical manufacturing is often done at large facilities that require a sizable capital investment and then produce key compounds for a finite period. We present an approach to the manufacturing of fine chemicals and pharmaceuticals in a self contained plastic reactionware device. The device was designed and constructed by using a chemical to computer-automated design (ChemCAD) approach that enables the translation of traditional bench-scale synthesis into a platform-independent digital code. This in turn guides production of a three-dimensional printed device that encloses the entire synthetic route internally via simple operations. We demonstrate the approach for the gamma-aminobutyric acid receptor agonist, (+/ )-baclofen, establishing a concept that paves the way for the local manufacture of drugs outside of specialist facilities. PMID- 29348236 TI - A global atlas of the dominant bacteria found in soil. AB - The immense diversity of soil bacterial communities has stymied efforts to characterize individual taxa and document their global distributions. We analyzed soils from 237 locations across six continents and found that only 2% of bacterial phylotypes (~500 phylotypes) consistently accounted for almost half of the soil bacterial communities worldwide. Despite the overwhelming diversity of bacterial communities, relatively few bacterial taxa are abundant in soils globally. We clustered these dominant taxa into ecological groups to build the first global atlas of soil bacterial taxa. Our study narrows down the immense number of bacterial taxa to a "most wanted" list that will be fruitful targets for genomic and cultivation-based efforts aimed at improving our understanding of soil microbes and their contributions to ecosystem functioning. PMID- 29348237 TI - Improving refugee integration through data-driven algorithmic assignment. AB - Developed democracies are settling an increased number of refugees, many of whom face challenges integrating into host societies. We developed a flexible data driven algorithm that assigns refugees across resettlement locations to improve integration outcomes. The algorithm uses a combination of supervised machine learning and optimal matching to discover and leverage synergies between refugee characteristics and resettlement sites. The algorithm was tested on historical registry data from two countries with different assignment regimes and refugee populations, the United States and Switzerland. Our approach led to gains of roughly 40 to 70%, on average, in refugees' employment outcomes relative to current assignment practices. This approach can provide governments with a practical and cost-efficient policy tool that can be immediately implemented within existing institutional structures. PMID- 29348239 TI - From parade ground to PI. PMID- 29348238 TI - Phosphoethanolamine cellulose: A naturally produced chemically modified cellulose. AB - Cellulose is a major contributor to the chemical and mechanical properties of plants and assumes structural roles in bacterial communities termed biofilms. We find that Escherichia coli produces chemically modified cellulose that is required for extracellular matrix assembly and biofilm architecture. Solid-state nuclear magnetic resonance spectroscopy of the intact and insoluble material elucidates the zwitterionic phosphoethanolamine modification that had evaded detection by conventional methods. Installation of the phosphoethanolamine group requires BcsG, a proposed phosphoethanolamine transferase, with biofilm-promoting cyclic diguanylate monophosphate input through a BcsE-BcsF-BcsG transmembrane signaling pathway. The bcsEFG operon is present in many bacteria, including Salmonella species, that also produce the modified cellulose. The discovery of phosphoethanolamine cellulose and the genetic and molecular basis for its production offers opportunities to modulate its production in bacteria and inspires efforts to biosynthetically engineer alternatively modified cellulosic materials. PMID- 29348241 TI - Meet the First Authors. PMID- 29348242 TI - Anthracycline Cardiotoxicity: Worrisome Enough to Have You Quaking? PMID- 29348240 TI - Snf1-RELATED KINASE1-Controlled C/S1-bZIP Signaling Activates Alternative Mitochondrial Metabolic Pathways to Ensure Plant Survival in Extended Darkness. AB - Sustaining energy homeostasis is of pivotal importance for all living organisms. In Arabidopsis thaliana, evolutionarily conserved SnRK1 kinases (Snf1-RELATED KINASE1) control metabolic adaptation during low energy stress. To unravel starvation-induced transcriptional mechanisms, we performed transcriptome studies of inducible knockdown lines and found that S1-basic leucine zipper transcription factors (S1-bZIPs) control a defined subset of genes downstream of SnRK1. For example, S1-bZIPs coordinate the expression of genes involved in branched-chain amino acid catabolism, which constitutes an alternative mitochondrial respiratory pathway that is crucial for plant survival during starvation. Molecular analyses defined S1-bZIPs as SnRK1-dependent regulators that directly control transcription via binding to G-box promoter elements. Moreover, SnRK1 triggers phosphorylation of group C-bZIPs and the formation of C/S1-heterodimers and, thus, the recruitment of SnRK1 directly to target promoters. Subsequently, the C/S1-bZIP-SnRK1 complex interacts with the histone acetylation machinery to remodel chromatin and facilitate transcription. Taken together, this work reveals molecular mechanisms underlying how energy deprivation is transduced to reprogram gene expression, leading to metabolic adaptation upon stress. PMID- 29348243 TI - Improving Cell Production Techniques to Enhance Autologous Cell Therapy. PMID- 29348244 TI - Branch Point Smooth Muscle Cells Highlighted by Novel Lineage Tracking Approach. PMID- 29348245 TI - Induced Pluripotent Stem Cells Derived Extracellular Vesicles: A Potential Therapy for Cardiac Repair. PMID- 29348247 TI - Scot Matkovich: Keep on Keeping on. PMID- 29348246 TI - Global Overview of the Transnational Alliance for Regenerative Therapies in Cardiovascular Syndromes (TACTICS) Recommendations: A Comprehensive Series of Challenges and Priorities of Cardiovascular Regenerative Medicine. PMID- 29348248 TI - Texas Heart Institute International Symposium on Cardiovascular Regenerative Medicine. PMID- 29348249 TI - The (Translational) Road Less Traveled. PMID- 29348250 TI - T4 Translational Moonshot: Making Cardiovascular Discoveries Work for Everyone. PMID- 29348252 TI - Translational Research in Cardiovascular Repair: A Call for a Paradigm Shift. AB - The international consortium TACTICS (Transnational Alliance for Regenerative Therapies in Cardiovascular Syndromes) has recently addressed key priorities in the field of cell-based therapy for cardiac repair, identifying the efficacy of translational research as one of the main challenges to ultimately improve the quality of life of patients with ischemic disease. Much of the controversy and confusion surrounding cardiac regenerative therapy stems from insufficient rigor in the conduct of preclinical studies, and there is an increasing recognition of a number of problems that undermine its quality that may contribute to translational failure. Here, we introduce well defined stages for preclinical research, and put forth proposals that should promote more rigorous preclinical work, in an effort to improve its quality and translatability. To augment the utility of preclinical research and its translation, it is necessary to (1) improve the quality of preclinical research, (2) promote collaborative efforts, and (3) enhance the sharing of knowledge and protocols. In particular, confirmatory (stage III) preclinical studies should be considered as a preamble to clinical studies and therefore must adhere to their standards of quality (including internal validity, standardization of protocols, and multicenter design). To increase transparency and minimize bias, these studies should be prospectively registered in an independent, open database. Ultimately, these recommendations should be implemented in the daily routine of investigators and in the policies of institutions, journals, and funding agencies. PMID- 29348251 TI - Reducing Cardiovascular Disparities Through Community-Engaged Implementation Research: A National Heart, Lung, and Blood Institute Workshop Report. AB - Cardiovascular disparities remain pervasive in the United States. Unequal disease burden is evident among population groups based on sex, race, ethnicity, socioeconomic status, educational attainment, nativity, or geography. Despite the significant declines in cardiovascular disease mortality rates in all demographic groups during the last 50 years, large disparities remain by sex, race, ethnicity, and geography. Recent data from modeling studies, linked micromap plots, and small-area analyses also demonstrate prominent variation in cardiovascular disease mortality rates across states and counties, with an especially high disease burden in the southeastern United States and Appalachia. Despite these continued disparities, few large-scale intervention studies have been conducted in these high-burden populations to examine the feasibility of reducing or eliminating cardiovascular disparities. To address this challenge, on June 22 and 23, 2017, the National Heart, Lung, and Blood Institute convened experts from a broad range of biomedical, behavioral, environmental, implementation, and social science backgrounds to summarize the current state of knowledge of cardiovascular disease disparities and propose intervention strategies aligned with the National Heart, Lung, and Blood Institute mission. This report presents the themes, challenges, opportunities, available resources, and recommended actions discussed at the workshop. PMID- 29348255 TI - Hypertension and Atrial Fibrillation: Doubts and Certainties From Basic and Clinical Studies. AB - Hypertension and atrial fibrillation (AF) are 2 important public health priorities. Their prevalence is increasing worldwide, and the 2 conditions often coexist in the same patient. Hypertension and AF are strikingly related to an excess risk of cardiovascular disease and death. Hypertension ultimately increases the risk of AF, and because of its high prevalence in the population, it accounts for more cases of AF than other risk factors. Among patients with established AF, hypertension is present in about 60% to 80% of individuals. Despite the well-known association between hypertension and AF, several pathogenetic mechanisms underlying the higher risk of AF in hypertensive patients are still incompletely known. From an epidemiological standpoint, it is unclear whether the increasing risk of AF with blood pressure (BP) is linear or threshold. It is uncertain whether an intensive control of BP or the use of specific antihypertensive drugs, such as those inhibiting the renin-angiotensin aldosterone system, reduces the risk of subsequent AF in hypertensive patients in sinus rhythm. Finally, in spite of the observational evidence suggesting a progressive relation between BP levels and the risk of thromboembolism and bleeding in patients with hypertension and AF, the extent to which BP should be lowered in these patients, including those who undergo catheter ablation, remains uncertain. This article summarizes the main basic mechanisms through which hypertension is believed to promote AF. It also explores epidemiological data supporting an evolutionary pathway from hypertension to AF, including the emerging evidence favoring an intensive BP control or the use of drugs, which inhibit the renin-angiotensin-aldosterone system to reduce the risk of AF. Finally, it examines the impact of non-vitamin K antagonist oral anticoagulants compared with warfarin in relation to hypertension. PMID- 29348254 TI - Circulating Platelets as Mediators of Immunity, Inflammation, and Thrombosis. AB - Platelets, non-nucleated blood components first described over 130 years ago, are recognized as the primary cell regulating hemostasis and thrombosis. The vascular importance of platelets has been attributed to their essential role in thrombosis, mediating myocardial infarction, stroke, and venous thromboembolism. Increasing knowledge on the platelets' role in the vasculature has led to many advances in understanding not only how platelets interact with the vessel wall but also how they convey changes in the environment to other circulating cells. In addition to their well-described hemostatic function, platelets are active participants in the immune response to microbial organisms and foreign substances. Although incompletely understood, the immune role of platelets is a delicate balance between its pathogenic response and its regulation of thrombotic and hemostatic functions. Platelets mediate complex vascular homeostasis via specific receptors and granule release, RNA transfer, and mitochondrial secretion that subsequently regulates hemostasis and thrombosis, infection, and innate and adaptive immunity. PMID- 29348253 TI - Multifunctional Role of Chymase in Acute and Chronic Tissue Injury and Remodeling. AB - Chymase is the most efficient Ang II (angiotensin II)-forming enzyme in the human body and has been implicated in a wide variety of human diseases that also implicate its many other protease actions. Largely thought to be the product of mast cells, the identification of other cellular sources including cardiac fibroblasts and vascular endothelial cells demonstrates a more widely dispersed production and distribution system in various tissues. Furthermore, newly emerging evidence for its intracellular presence in cardiomyocytes and smooth muscle cells opens an entirely new compartment of chymase-mediated actions that were previously thought to be limited to the extracellular space. This review illustrates how these multiple chymase-mediated mechanisms of action can explain the residual risk in clinical trials of cardiovascular disease using conventional renin-angiotensin system blockade. PMID- 29348257 TI - Global sexual health education: STIF in Zambia. PMID- 29348259 TI - Thrombectomy stroke centers: The current threat to regionalizing stroke care. PMID- 29348258 TI - High-risk behaviour and HIV infection risk among non-local men who have sex with men with less than a single year's residence in urban centres: a multicentre cross-sectional study from China. AB - OBJECTIVES: Traditionally, subjects' migration status has usually been defined on the basis of their registered residency status. We attempted to redefine migration based on the duration of residency in their cities of migration and to explore more precisely the impact of migration on HIV infection risk in men who have sex with men (MSM). METHODS: A multisite cross-sectional study was conducted during 2012-2013 in seven Chinese cities. Questionnaire surveys were conducted and blood was drawn to test for antibodies to HIV, syphilis and herpes simplex virus-2 (HSV-2). MSM who were unregistered local residents and had resided in their cities of migration for <=1 or >1 year were defined as migrant MSM, or transitional MSM, respectively. RESULTS: Compared with transitional MSM and local MSM, migrant MSM had poorer HIV knowledge and higher rates of high-risk behaviour, including earlier sexual debut, multiple sexual partners, participation in commercial sex and recreational drug use. Multivariate logistic regression analysis showed that HIV prevalence among migrant MSM was higher than local MSM (p<0.05). This relationship, however, did not hold for transitional MSM and local MSM (p>0.05). Male sex work, recreational drug use, syphilis infection and HSV-2 infection were independently associated with HIV infection among migrant MSM. CONCLUSIONS: Non-local MSM with shorter residence were at greater risk of HIV acquisition. More focus should be placed on HIV behavioural interventions targeting non-local MSM with temporary residence. PMID- 29348256 TI - Flavonoids, Dairy Foods, and Cardiovascular and Metabolic Health: A Review of Emerging Biologic Pathways. AB - A growing body of nutritional science highlights the complex mechanisms and pleiotropic pathways of cardiometabolic effects of different foods. Among these, some of the most exciting advances are occurring in the area of flavonoids, bioactive phytochemicals found in plant foods; and in the area of dairy, including milk, yogurt, and cheese. Many of the relevant ingredients and mechanistic pathways are now being clarified, shedding new light on both the ingredients and the pathways for how diet influences health and well-being. Flavonoids, for example, have effects on skeletal muscle, adipocytes, liver, and pancreas, and myocardial, renal, and immune cells, for instance, related to 5' monophosphate-activated protein kinase phosphorylation, endothelial NO synthase activation, and suppression of NF-kappaB (nuclear factor-kappaB) and TLR4 (toll like receptor 4). Effects of dairy are similarly complex and may be mediated by specific amino acids, medium-chain and odd-chain saturated fats, unsaturated fats, branched-chain fats, natural trans fats, probiotics, vitamin K1/K2, and calcium, as well as by processing such as fermentation and homogenization. These characteristics of dairy foods influence diverse pathways including related to mammalian target of rapamycin, silent information regulator transcript-1, angiotensin-converting enzyme, peroxisome proliferator-activated receptors, osteocalcin, matrix glutamate protein, hepatic de novo lipogenesis, hepatic and adipose fatty acid oxidation and inflammation, and gut microbiome interactions such as intestinal integrity and endotoxemia. The complexity of these emerging pathways and corresponding biological responses highlights the rapid advances in nutritional science and the continued need to generate robust empirical evidence on the mechanistic and clinical effects of specific foods. PMID- 29348260 TI - The Canadian Preterm Birth Network: a study protocol for improving outcomes for preterm infants and their families. AB - BACKGROUND: Preterm birth (birth before 37 wk of gestation) occurs in about 8% of pregnancies in Canada and is associated with high mortality and morbidity rates that substantially affect infants, their families and the health care system. Our overall goal is to create a transdisciplinary platform, the Canadian Preterm Birth Network (CPTBN), where investigators, stakeholders and families will work together to improve childhood outcomes of preterm neonates. METHODS: Our national cohort will include 24 maternal-fetal/obstetrical units, 31 neonatal intensive care units and 26 neonatal follow-up programs across Canada with planned linkages to provincial health information systems. Three broad clusters of projects will be undertaken. Cluster 1 will focus on quality-improvement efforts that use the Evidence-based Practice for Improving Quality method to evaluate information from the CPTBN database and review the current literature, then identify potentially better health care practices and implement identified strategies. Cluster 2 will assess the impact of current practices and practice changes in maternal, perinatal and neonatal care on maternal, neonatal and neurodevelopmental outcomes. Cluster 3 will evaluate the effect of preterm birth on babies, their families and the health care system by integrating CPTBN data, parent feedback, and national and provincial database information in order to identify areas where more parental support is needed, and also generate robust estimates of resource use, cost and cost-effectiveness around preterm neonatal care. INTERPRETATION: These collaborative efforts will create a flexible, transdisciplinary, evaluable and informative research and quality-improvement platform that supports programs, projects and partnerships focused on improving outcomes of preterm neonates. PMID- 29348262 TI - Dawn of a New Era for Stroke Treatment: Implications of the DAWN Study for Acute Stroke Care and Stroke Systems of Care. PMID- 29348261 TI - Complement Receptor C5aR1 Plays an Evolutionarily Conserved Role in Successful Cardiac Regeneration. AB - BACKGROUND: Defining conserved molecular pathways in animal models of successful cardiac regeneration could yield insight into why adult mammals have inadequate cardiac regeneration after injury. Insight into the transcriptomic landscape of early cardiac regeneration from model organisms will shed light on evolutionarily conserved pathways in successful cardiac regeneration. METHODS: Here we describe a cross-species transcriptomic screen in 3 model organisms for cardiac regeneration: axolotl, neonatal mice, and zebrafish. Apical resection to remove ~10% to 20% of ventricular mass was carried out in these model organisms. RNA sequencing analysis was performed on the hearts harvested at 3 time points: 12, 24, and 48 hours after resection. Sham surgery was used as internal control. RESULTS: Genes associated with inflammatory processes were found to be upregulated in a conserved manner. Complement receptors (activated by complement components, part of the innate immune system) were found to be highly upregulated in all 3 species. This approach revealed induction of gene expression for complement 5a receptor 1 in the regenerating hearts of zebrafish, axolotls, and mice. Inhibition of complement 5a receptor 1 significantly attenuated the cardiomyocyte proliferative response to heart injury in all 3 species. Furthermore, after left ventricular apical resection, the cardiomyocyte proliferative response was diminished in mice with genetic deletion of complement 5a receptor 1. CONCLUSIONS: These data reveal that activation of complement 5a receptor 1 mediates an evolutionarily conserved response that promotes cardiomyocyte proliferation after cardiac injury and identify complement pathway activation as a common pathway of successful heart regeneration. PMID- 29348263 TI - Phosphoinositide 3-Kinase Gamma Inhibition Protects From Anthracycline Cardiotoxicity and Reduces Tumor Growth. AB - BACKGROUND: Anthracyclines, such as doxorubicin (DOX), are potent anticancer agents for the treatment of solid tumors and hematologic malignancies. However, their clinical use is hampered by cardiotoxicity. This study sought to investigate the role of phosphoinositide 3-kinase gamma (PI3Kgamma) in DOX induced cardiotoxicity and the potential cardioprotective and anticancer effects of PI3Kgamma inhibition. METHODS: Mice expressing a kinase-inactive PI3Kgamma or receiving PI3Kgamma-selective inhibitors were subjected to chronic DOX treatment. Cardiac function was analyzed by echocardiography, and DOX-mediated signaling was assessed in whole hearts or isolated cardiomyocytes. The dual cardioprotective and antitumor action of PI3Kgamma inhibition was assessed in mouse mammary tumor models. RESULTS: PI3Kgamma kinase-dead mice showed preserved cardiac function after chronic low-dose DOX treatment and were protected against DOX-induced cardiotoxicity. The beneficial effects of PI3Kgamma inhibition were causally linked to enhanced autophagic disposal of DOX-damaged mitochondria. Consistently, either pharmacological or genetic blockade of autophagy in vivo abrogated the resistance of PI3Kgamma kinase-dead mice to DOX cardiotoxicity. Mechanistically, PI3Kgamma was triggered in DOX-treated hearts, downstream of Toll-like receptor 9, by the mitochondrial DNA released by injured organelles and contained in autolysosomes. This autolysosomal PI3Kgamma/Akt/mTOR/Ulk1 signaling provided maladaptive feedback inhibition of autophagy. PI3Kgamma blockade in models of mammary gland tumors prevented DOX-induced cardiac dysfunction and concomitantly synergized with the antitumor action of DOX by unleashing anticancer immunity. CONCLUSIONS: Blockade of PI3Kgamma may provide a dual therapeutic advantage in cancer therapy by simultaneously preventing anthracyclines cardiotoxicity and reducing tumor growth. PMID- 29348264 TI - Employment among Patients Starting Dialysis in the United States. AB - BACKGROUND AND OBJECTIVES: Patients with ESRD face significant challenges to remaining employed. It is unknown when in the course of kidney disease patients stop working. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We examined employment trends over time among patients ages 18-54 years old who initiated dialysis in the United States between 1996 and 2013 from a national ESRD registry. We compared unadjusted trends in employment at the start of dialysis and 6 months before ESRD and used linear probability models to estimate changes in employment over time after adjusting for patient characteristics and local unemployment rates in the general population. We also examined employment among selected vulnerable patient populations and changes in employment in the 6 months preceding dialysis initiation. RESULTS: Employment was low among patients starting dialysis throughout the study period at 23%-24%, and 38% of patients who were employed 6 months before ESRD stopped working by dialysis initiation. However, after adjusting for observed characteristics, the probability of employment increased over time; patients starting dialysis between 2008 and 2013 had a 4.7% (95% confidence interval, 4.3% to 5.1%) increase in the absolute probability of employment at the start of dialysis compared with patients starting dialysis between 1996 and 2001. Black and Hispanic patients were less likely to be employed than other patients starting dialysis, but this gap narrowed during the study period. CONCLUSIONS: Although working-aged patients in the United States starting dialysis have experienced increases in the adjusted probability of employment over time, employment at the start of dialysis has remained low. PMID- 29348265 TI - Employment among Patients on Dialysis: An Unfulfilled Promise. PMID- 29348266 TI - Dopamine Receptor Agonist Treatment of Idiopathic Dystonia: A Reappraisal in Humans and Mice. AB - Although dystonia is often associated with abnormal dopamine neurotransmission, dopaminergic drugs are not currently used to treat dystonia because there is a general view that dopaminergic drugs are ineffective. However, there is little conclusive evidence to support or refute this assumption. Therefore, to assess the therapeutic potential of these compounds, we analyzed results from multiple trials of dopamine receptor agonists in patients with idiopathic dystonias and also tested the efficacy of dopamine receptor agonists in a mouse model of generalized dystonia. Our results suggest that dopamine receptor agonists were effective in some, but not all, patients tested. Further, the mixed D1/D2 dopamine receptor agonist apomorphine was apparently more effective than subtype selective D2 dopamine receptor agonists. However, rigorously controlled trials are still needed. In a mouse model of dystonia, a selective D1 dopamine receptor agonist was not effective while a selective D2 dopamine receptor had modest efficacy. However, when combined, these receptor-selective agonists acted synergistically to ameliorate the dystonia. Coactivation of D1 and D2 dopamine receptors using apomorphine or by increasing extracellular concentrations of dopamine was also effective. Thus, results from both clinical trials and tests in mice suggest that coactivation of D1 and D2 dopamine receptors may be an effective therapeutic strategy in some patients. These results support a reconsideration of dopamine receptors as targets for the treatment of dystonia, particularly because recent genetic and diagnostic advances may facilitate the identification of the subtypes of dystonia patients who respond and those who do not. PMID- 29348268 TI - Is the Quest for Signaling Bias Worth the Effort? AB - The question of whether signaling bias is a viable discovery strategy for drug therapy is discussed as a value proposition. On the positive side, bias is easily identified and quantified in simple in vitro functional assays with little resource expenditure. However, there are valid pharmacological reasons why these in vitro bias numbers may not accurately translate to in vivo therapeutic systems making the expectation of direct correspondence of in vitro bias to in vivo systems a problematic process. Presently, in vitro bias is used simply as a means to identify unique molecules to be advanced to more complex therapeutic assays but from this standpoint alone, the value proposition lies far to the positive. However, pharmacological attention needs to be given to the translational gap to reduce inevitable and costly attrition in biased molecule progression. PMID- 29348267 TI - Toll-Like Receptor 9-Dependent AMPKalpha Activation Occurs via TAK1 and Contributes to RhoA/ROCK Signaling and Actin Polymerization in Vascular Smooth Muscle Cells. AB - Traditionally, Toll-like receptor 9 (TLR9) signals through an MyD88-dependent cascade that results in proinflammatory gene transcription. Recently, it was reported that TLR9 also participates in a stress tolerance signaling cascade in nonimmune cells. In this noncanonical pathway, TLR9 binds to and inhibits sarcoplasmic/endoplasmic reticulum Ca2+-ATPase 2 (SERCA2), modulating intracellular calcium handling, and subsequently resulting in the activation of 5'-AMP-activated protein kinase alpha (AMPKalpha). We have previously reported that TLR9 causes increased contraction in isolated arteries; however, the mechanisms underlying this vascular dysfunction need to be further clarified. Therefore, we hypothesized that noncanonical TLR9 signaling was also present in vascular smooth muscle cells (VSMCs) and that it mediates enhanced contractile responses through SERCA2 inhibition. To test these hypotheses, aortic microsomes, aortic VSMCs, and isolated arteries from male Sprague-Dawley rats were incubated with vehicle or TLR9 agonist (ODN2395). Despite clear AMPKalpha activation after treatment with ODN2395, SERCA2 activity was unaffected. Alternatively, ODN2395 caused the phosphorylation of AMPKalpha via transforming growth factor beta activated kinase 1 (TAK1), a kinase involved in TLR9 inflammatory signaling. Downstream, we hypothesized that that TLR9 activation of AMPKalpha may be important in mediating actin cytoskeleton reorganization. ODN2395 significantly increased the filamentous-to-globular actin ratio, as well as indices of RhoA/Rho associated protein kinase (ROCK) activation, with the latter being prevented by AMPKalpha inhibition. In conclusion, AMPKalpha phosphorylation after TLR9 activation in VSMCs appears to be an extension of traditional inflammatory signaling via TAK1, as opposed to SERCA2 inhibition and the noncanonical pathway. Nonetheless, TLR9-AMPKalpha signaling can mediate VSMC function via RhoA/ROCK activation and actin polymerization. PMID- 29348269 TI - Management of incidental adrenal tumours. PMID- 29348270 TI - Hyperpigmentation in the skin folds. PMID- 29348271 TI - Intratumoral Payload Concentration Correlates with the Activity of Antibody-Drug Conjugates. AB - Antibody-drug conjugates (ADC) have become important scaffolds for targeted cancer therapies. However, ADC exposure-response correlation is not well characterized. We demonstrated that intratumor payload exposures correlated well with the corresponding efficacies of several disulfide-linked ADCs, bearing an DNA alkylating agent, pyrrolo[2,1-c][1,4]benzodiazepine-dimer (PBD), in HER2 expressing xenograft models. The correlation suggests that a threshold concentration of intratumor payload is required to support sustained efficacy and an ADC can deliver an excessive level of payload to tumors that does not enhance efficacy ("Plateau" effect). In contrast to tumor PBD concentrations, related assessments of systemic exposures, plasma stability, and drug-to-antibody ratio changes of related ADCs did not consistently rationalize the observed ADC efficacies. A minimal efficacious dose could be determined by ADC dose fractionation studies in the xenograft models. Mechanistic investigations revealed that both linker immolation and linker disulfide stability are the key factors that determine intratumor PBD concentrations. Overall, this study demonstrates how a linker design can impact ADC efficacy and that the intratumor exposure of a payload drug as the molecular mechanism quantitatively correlate with and predict the antitumor efficacy of ADCs. Mol Cancer Ther; 17(3); 677-85. (c)2018 AACR. PMID- 29348273 TI - Correction: optic disc swelling in a patient with tuberculous meningitis: a diagnostic challenge. PMID- 29348272 TI - Use of Computer Technology During Family-Centered Rounds: A Qualitative Study of Parent Perspectives. AB - OBJECTIVES: Physicians often use computer technologies to assist in work activities, including family-centered rounds (FCR), but little is known about the attitudes of families on the use of these technologies. We aimed to describe these perceptions on the presence and use of computer technologies during FCR. METHODS: We conducted observations of FCR from a parent's visual perspective to "see what they see." This was followed by in-depth interviews with the families of patients admitted to the hospitalist service at our institution to describe their experience with the use of computer technology by the medical team during FCR. RESULTS: From the analysis of 31 individual interview transcripts, our research team identified the following 4 themes: (1) technology serves a purpose during FCR; (2) to view data in real time; (3) do not lose the human connection; and (4) transparency is valued. Thirty-eight observations showed broad use of computer technologies by the medical team. Devices were used to provide data that would educate the family; however, the devices were often placed between the medical team and family, creating a physical barrier. CONCLUSIONS: Families recognized the benefit of computer technologies in the care of their child and would like greater sharing of information by the medical team. They insisted their child always be "placed first" and that the team be transparent with their use of technology. Computer technology may create possible obstructions and distractions to the medical team. As computer technologies become more commonplace in medicine, maintaining the essence of good patient-communication and family centered care is essential. PMID- 29348274 TI - Sinogenic intracranial complications: is adalimumab a culprit? AB - We present two 11-year-old girls with chronic recurrent multifocal osteomyelitis, treated with adalimumab. Both developed severe intracranial complications to sinusitis. Patient 1 had been treated with adalimumab for 15 months when she developed acute sinusitis complicated by an orbital abscess, forehead swelling, a subdural empyema and osteomyelitis of the frontal bone. She was treated with a rhinosurgical and neurosurgical approach with intravenous antibiotics.Patient 2 had been in adalimumab treatment for 10 weeks. Adalimumab was discontinued 8 weeks prior to developing subdural empyema and subcortical abscesses in combination with sinusitis. She was treated with endoscopic sinus surgery and intravenous antibiotics. Both patients had developed psoriasis and episodes of infection during treatment. They were non-septic and had low fever on presentation. None of the patients suffered any long-term neurological sequelae. The immunosuppressive treatment with adalimumab is considered to be the cause of the sinogenic intracranial complications in our cases. PMID- 29348275 TI - Microangiopathies in pregnancy. AB - Thrombotic thrombocytopenic purpura (TTP) is a potentially reversible, life threatening medical emergency. We present a case of a 21-year-old female with evidence of haemolytic anaemia based on the presence of positive markers of haemolysis. Negative Coomb's test, thrombocytopenia and placental infarcts raised suspicion for a thrombotic microangiopathy. She was diagnosed with TTP and managed with emergency plasma exchange. Her recovery was immediate.A presumptive diagnosis of TTP should be based on the presence of microangiopathic haemolytic anaemia with thrombocytopenia and plasma exchange should be initiated while complete work up is pending. Using the regular pentad solely for diagnosis of TTP will lead to underdiagnosis of many cases and should be avoided.Several microangiopathies can be seen during pregnancy including TTP/atypical haemolytic uraemic syndrome, HELLP syndrome, pre-eclampsia, disseminated intravascular coagulopathy and antiphospholipid antibody syndrome. Distinction between each type will be the focus of our discussion as treatment decisions differ accordingly. PMID- 29348276 TI - Congenital tuberculosis presenting as otorrhoea in a preterm infant. AB - A premature infant of 25 weeks' gestational age presented at 8 weeks after birth with otorrhoea from the left ear. Following a course of topical and systemic antibiotics, the patient deteriorated developing facial nerve paralysis and cervical lymphadenitis. Contrast-enhanced CT and MRI of the head showed a destructive process of the left temporal bone. These findings prompted the clinicians to send swabs from the purulent discharge from the ear for acid-fast bacilli stain. Furthermore, surgical exploration and debridement were undertaken. Cultures from ear discharge and biopsy-taken during surgical procedure-revealed the presence of Mycobacterium tuberculosis complex. The patient developed necrotizing otitis media, left temporal bone osteomyelitis and cervical lymphadenitis. The infant's mother was found to have an endometrial biopsy positive for M. tuberculosis suggesting the diagnosis of congenital tuberculosis. PMID- 29348277 TI - Chronic strongyloidiasis with recurrent asthma exacerbations and steroid associated 'hives'. AB - A 74-year-old man experienced worsening asthma for several years. Oral steroids were required on multiple occasions for asthma treatment. During his steroid courses, he developed a hive-like rash, which would resolve after completion of each steroid course. He was from Romania, and had lived in the USA for many years. Laboratory testing had shown eosinophilia. He was eventually diagnosed with strongyloidiasis by serology. Treatment with ivermectin led to marked improvement but not resolution of his long-term asthma. His hive-like rash, which was likely larva currens, did not recur with a subsequent steroid course. Improved recognition of strongyloidiasis, particularly in steroid-treated patients, is needed. PMID- 29348279 TI - 'Clinically suspected myocarditis with pseudoinfarct presentation' complicated with left ventricular aneurysm. AB - A 51-year-old man presented with chest pain, high troponin level, inflammatory syndrome and ST-segment elevation in the anterior leads. While the transthoracic echocardiogram (TTE) showed anteroseptal hypokinesis and apical akinesis, the coronary angiogram was normal. Cardiac MR demonstrated a typical aspect of myocarditis (multiple areas of mid-myocardial late gadolinium enhancement, sparing the subendocardial layer, along with oedema). The initial diagnosis was clinically suspected myocarditis with pseudoinfarct presentation. However, the short-term evolution was not typical of this syndrome, since an apical transmural scar with aneurysm developed within 2 weeks. Seven years later, the patient remained asymptomatic, while Q waves persisted in anterior leads along with an apical aneurysm on TTE. A transmural myocardial necrosis with aneurysm is an unusual complication of acute myocarditis. The potential mechanisms accounting for the development of these lesions are reviewed, and the clinical implications for the diagnosis and monitoring of acute myocarditis are discussed. PMID- 29348278 TI - A ping-pong ball in left atrium. PMID- 29348280 TI - Marked cachexia in probable invasive pulmonary aspergillosis with bronchopleural fistula. AB - A 49-year-old man with a medical history of diabetes and heavy smoking was admitted to intensive care with severe bilateral pneumonia associated with marked cachexia. He developed a complex right-sided bronchopleural fistula and was transferred to our tertiary centre for consideration of surgical intervention.Despite escalation of antibiotic therapy, he did not improve and further investigations led to a diagnosis of invasive pulmonary aspergillosis. Definitive treatment plans required a right pneumonectomy; however, given the severity of cachexia, he remained unable to undergo such a large operation. This case demonstrates an atypical presentation of invasive pulmonary aspergillosis in a mildly immunodeficient individual. It highlights the challenges in assessment and management of critically ill patients' nutrition as well as optimal timing for surgical intervention. PMID- 29348281 TI - Early intrauterine pregnancy during major surgery: the importance of preoperative assessment and advice. AB - We present a case of a live birth occurring post radical laparoscopic excision of endometriosis, hysteroscopy, curettage and test of tubal patency in the presence of an early intrauterine gestation. PMID- 29348282 TI - Acquired pyloric stenosis resulting in hypokalaemic, hyperchloraemic normal anion gap metabolic acidosis. Persistent vomiting in an adult: cause and effect. AB - A 24-year-old woman presented with a history of persistent vomiting for at least 3 months. This resulted in severe dehydration with risk of acute kidney injury. In addition to volume depletion, loss of gastric fluid resulted in a specific metabolic derangement-hypokalaemic, hypochloraemic normal anion gap metabolic alkalosis with a reduced ionised calcium concentration and paradoxical aciduria. These metabolic changes were reflected in her ECG. Investigation demonstrated acquired gastric outflow tract obstruction secondary to a pyloric peptic ulcer. The patient was resuscitated with intravenous crystalloid and electrolyte supplements. The acquired pyloric stenosis was treated medically with a proton pump inhibitor and Helicobacter pylori eradication therapy with excellent recovery. PMID- 29348283 TI - Unusual 'feathery' cause of a parapharyngeal abscess in an infant. AB - A 7-month-old boy presented to the emergency department with reduced oral intake, neck swelling and fever. Clinical examination revealed a 3 cm left parotid and left level I neck swelling with left medialised tonsil but no trismus. Computed imaging confirmed the presence of an abscess in the peritonsillar area with extension into the parapharyngeal space and deep lobe of the parotid gland. The abscess was incised and drained transorally. Following drainage of the abscess, a small 3 mm suspicious foreign body was seen. After extraction, this was revealed to be a 60 mm feather. We would like to highlight this unusual case in an infant and to ensure that foreign body is considered as aetiology. There are only a handful of cases in the literature involving feathers causing neck abscesses and, to our knowledge, this is the first case where the patient presented with a pharyngeal abscess, which was drained transorally. PMID- 29348284 TI - Laryngeal tuberculosis: a rare cause of critical airway obstruction. AB - Laryngeal tuberculosis (TB) is a rare condition, occurring in less than 1% of patients infected with pulmonary TB. We present a case of a 57-year-old male patient, who presented in extremis with audible stridor, increased work of breathing and cyanosis. In addition, the patient had a complex medical history, including a recent diagnosis of congenital malformation of the epiglottis. Emergency intervention was required to secure the airway, and after initial attempts at intubation were unsuccessful, an emergency tracheostomy was performed. Four days after initial presentation, his sputum tested positive for acid-fast bacilli, and a subsequent CT chest revealed pulmonary as well as laryngeal TB, which was confirmed on biopsy of the larynx. The patient was commenced on a 24-week course of anti-tuberculous treatment and was successfully decannulated 6 months after the emergency airway was established. PMID- 29348285 TI - Vancomycin-induced coronary artery spasm: a case of Kounis syndrome. AB - Kounis syndrome defined as the appearance of acute coronary syndrome in the context of an allergic reaction is a relatively rare phenomenon. There are three variants of this syndrome in which the patient presents with symptoms of an acute chest. Herein, we describe a case of an 83-year-old woman who demonstrated type I variant of Kounis syndrome in response to vancomycin administration. After initialisation of vancomycin, she became unresponsive and an ECG demonstrated ST changes consistent with inferior-lateral myocardial infarction. Once allergic stimulus was removed, ECG normalised. Differential diagnosis includes, myocardial infarctions, angina as well as intravascular stent thrombosis, which must all be ruled out. The patient was monitored and discharged soon thereafter. PMID- 29348286 TI - Portal vein embolisation in a patient with situs inversus. AB - Portal vein embolisation (PVE) is a well-established technique used for patients who require major hepatic resections without sufficient volume of future remnant liver (FRL). We describe a case of PVE in a patient with situs inversus. Computed Tomography (CT) 4 weeks after the procedure demonstrated significant hypertrophy of the FRL. However, the surgical procedure was aborted due to signs of extrahepatic progression. PMID- 29348287 TI - Recurrent hiccups may signal brainstem pathology and should be investigated. AB - While occasional hiccups are normal, their persistent recurrence is distressing and may have an underlying aetiology. Patients with recurrent hiccups may undergo a long journey and see many physicians before the diagnosis is finally made. The purpose of this report is to increase awareness of central nervous system lesions as a possible cause for recurrent hiccups and provide an illustrative case of an otherwise fit man presenting with ongoing hiccups caused by a medullary haemangioblastoma. PMID- 29348288 TI - Budd-Chiari syndrome: a rare and life-threatening complication of Crohn's disease. AB - Budd-Chiari syndrome (BCS) is characterised by obstruction of hepatic venous outflow and may be triggered by the prothrombotic state associated with inflammatory bowel disease (IBD). We reported a case of Crohn's disease (CD) that presented with anasarca, ascites, symptomatic hepatomegaly, elevated liver enzymes, increased prothrombin time and low albumin. Oesophagogastroduodenoscopy and colonoscopy confirmed active CD. Abdominal CT showed hepatic vein thrombosis. Liver biopsy revealed severe perivenular sinusoidal dilation with areas of hepatocyte dropout, bands of hepatocyte atrophy and centrizonal fibrosis, suggestive of BCS. The patient was treated with steroids for CD and systemic anticoagulants for BCS. His liver function and enzymes normalised, and he reported symptomatic improvement. The precise mechanism responsible for increased hypercoagulability in IBD remains unclear. Early recognition and treatment for possible thrombotic complications of CD is critical to prevent potentially fatal events like pulmonary embolism or liver failure. PMID- 29348289 TI - Urinary Bladder Mass Due To Chronic Lymphocytic Leukaemia. PMID- 29348290 TI - An unusual case of basilar artery aneurysm presenting with spastic quadriparesis. AB - Unruptured aneurysm usually presents with headache and neuro-ophthalmic features; when it ruptures, it presents with subarachnoid haemorrhage. Basilar artery aneurysm represents only 3-5% of cerebral aneurysms. Non-haemorrhagic symptoms and the signs of unruptured aneurysms are manifested as mass effect, thromboembolic phenomenon or epileptical attacks. Clinical presentation of unruptured aneurysm depends on structures which are involved. In our case, the patient had insidious onset headache and spastic quadriparesis with sixth cranial nerve palsy, which implicate involvement of corticospinal pathways at the level of pons. PMID- 29348291 TI - Bruns nystagmus: an important clinical clue for cerebellopontine angle tumours. PMID- 29348292 TI - Morbid jealousy reactivated by mood episodes. AB - A middle-aged man who has been enduring financial constraint experienced a period of irritability, increased goal-directed activities and insomnia occurring along with extreme jealousy with his current wife. The episode was followed by depressed mood and non-prominent auditory hallucination. His previous history revealed a forensic psychiatry case of a murder he committed 20 years ago. PMID- 29348293 TI - Defining limited stage small cell lung cancer: a radiation oncologist's perspective. PMID- 29348294 TI - Sarcomatoid carcinoma of the duodenum. PMID- 29348296 TI - CART Targeting of Solid Tumors: More Pieces to the Puzzle. AB - Chimeric antigen receptor-modified T (CART)-cell-based targeting of solid tumors remains a considerable and worthwhile challenge in the field of immunotherapy. The role of chemotherapy to target stroma and enhance chimeric antigen receptor (CAR) cell antitumor function, expansion, and persistence is still unresolved. Clin Cancer Res; 24(6); 1246-7. (c)2018 AACRSee related article by Guo et al., p. 1277. PMID- 29348295 TI - Tuning CRISPR-Cas9 Gene Drives in Saccharomyces cerevisiae. AB - Control of biological populations is an ongoing challenge in many fields, including agriculture, biodiversity, ecological preservation, pest control, and the spread of disease. In some cases, such as insects that harbor human pathogens (e.g., malaria), elimination or reduction of a small number of species would have a dramatic impact across the globe. Given the recent discovery and development of the CRISPR-Cas9 gene editing technology, a unique arrangement of this system, a nuclease-based "gene drive," allows for the super-Mendelian spread and forced propagation of a genetic element through a population. Recent studies have demonstrated the ability of a gene drive to rapidly spread within and nearly eliminate insect populations in a laboratory setting. While there are still ongoing technical challenges to design of a more optimal gene drive to be used in wild populations, there are still serious ecological and ethical concerns surrounding the nature of this powerful biological agent. Here, we use budding yeast as a safe and fully contained model system to explore mechanisms that might allow for programmed regulation of gene drive activity. We describe four conserved features of all CRISPR-based drives and demonstrate the ability of each drive component-Cas9 protein level, sgRNA identity, Cas9 nucleocytoplasmic shuttling, and novel Cas9-Cas9 tandem fusions-to modulate drive activity within a population. PMID- 29348297 TI - Changes in macrophage transcriptome associate with systemic sclerosis and mediate GSDMA contribution to disease risk. AB - OBJECTIVES: Several common and rare risk variants have been reported for systemic sclerosis (SSc), but the effector cell(s) mediating the function of these genetic variants remains to be elucidated. While innate immune cells have been proposed as the critical targets to interfere with the disease process underlying SSc, no studies have comprehensively established their effector role. Here we investigated the contribution of monocyte-derived macrophages (MDMs) in mediating genetic susceptibility to SSc. METHODS: We carried out RNA sequencing and genome wide genotyping in MDMs from 57 patients with SSc and 15 controls. Our differential expression and expression quantitative trait locus (eQTL) analysis in SSc was further integrated with epigenetic, expression and eQTL data from skin, monocytes, neutrophils and lymphocytes. RESULTS: We identified 602 genes upregulated and downregulated in SSc macrophages that were significantly enriched for genes previously implicated in SSc susceptibility (P=5*10-4), and 270 cis regulated genes in MDMs. Among these, GSDMA was reported to carry an SSc risk variant (rs3894194) regulating expression of neighbouring genes in blood. We show that GSDMA is upregulated in SSc MDMs (P=8.4*10-4) but not in the skin, and is a significant eQTL in SSc macrophages and lipopolysaccharide/interferon gamma (IFNgamma)-stimulated monocytes. Furthermore, we identify an SSc macrophage transcriptome signature characterised by upregulation of glycolysis, hypoxia and mTOR signalling and a downregulation of IFNgamma response pathways. CONCLUSIONS: Our data further establish the link between macrophages and SSc, and suggest that the contribution of the rs3894194 risk variant to SSc susceptibility can be mediated by GSDMA expression in macrophages. PMID- 29348299 TI - Seven days in medicine: 10-16 January 2018. PMID- 29348300 TI - Letter to the GMC chair regarding Hadiza Bawa-Garba. PMID- 29348298 TI - A Review of Prostate Cancer Genome-Wide Association Studies (GWAS). AB - Prostate cancer is the most common cancer in men in Europe and the United States. The genetic heritability of prostate cancer is contributed to by both rarely occurring genetic variants with higher penetrance and moderate to commonly occurring variants conferring lower risks. The number of identified variants belonging to the latter category has increased dramatically in the last 10 years with the development of the genome-wide association study (GWAS) and the collaboration of international consortia that have led to the sharing of large scale genotyping data. Over 40 prostate cancer GWAS have been reported, with approximately 170 common variants now identified. Clinical utility of these variants could include strategies for population-based risk stratification to target prostate cancer screening to men with an increased genetic risk of disease development, while for those who develop prostate cancer, identifying genetic variants could allow treatment to be tailored based on a genetic profile in the early disease setting. Functional studies of identified variants are needed to fully understand underlying mechanisms of disease and identify novel targets for treatment. This review will outline the GWAS carried out in prostate cancer and the common variants identified so far, and how these may be utilized clinically in the screening for and management of prostate cancer. Cancer Epidemiol Biomarkers Prev; 27(8); 845-57. (c)2018 AACR. PMID- 29348301 TI - Predicting the presence of macrovascular causes in non-traumatic intracerebral haemorrhage: the DIAGRAM prediction score. AB - OBJECTIVE: A substantial part of non-traumatic intracerebral haemorrhages (ICH) arises from a macrovascular cause, but there is little guidance on selection of patients for additional diagnostic work-up. We aimed to develop and externally validate a model for predicting the probability of a macrovascular cause in patients with non-traumatic ICH. METHODS: The DIagnostic AngioGRAphy to find vascular Malformations (DIAGRAM) study (n=298; 69 macrovascular cause; 23%) is a prospective, multicentre study assessing yield and accuracy of CT angiography (CTA), MRI/ magnetic resonance angiography (MRA) and intra-arterial catheter angiography in diagnosing macrovascular causes in patients with non-traumatic ICH. We considered prespecified patient and ICH characteristics in multivariable logistic regression analyses as predictors for a macrovascular cause. We combined independent predictors in a model, which we validated in an external cohort of 173 patients with ICH (78 macrovascular cause, 45%). RESULTS: Independent predictors were younger age, lobar or posterior fossa (vs deep) location of ICH, and absence of small vessel disease (SVD). A model that combined these predictors showed good performance in the development data (c-statistic 0.83; 95% CI 0.78 to 0.88) and moderate performance in external validation (c-statistic 0.66; 95% CI 0.58 to 0.74). When CTA results were added, the c-statistic was excellent (0.91; 95% CI 0.88 to 0.94) and good after external validation (0.88; 95% CI 0.83 to 0.94). Predicted probabilities varied from 1% in patients aged 51-70 years with deep ICH and SVD, to more than 50% in patients aged 18-50 years with lobar or posterior fossa ICH without SVD. CONCLUSION: The DIAGRAM scores help to predict the probability of a macrovascular cause in patients with non-traumatic ICH based on age, ICH location, SVD and CTA. PMID- 29348303 TI - Absence epilepsy beyond adolescence: an outcome analysis after 45 years of follow up. AB - OBJECTIVES: Depending on patient age at onset, absence epilepsy is subdivided into childhood and juvenile forms. Absence seizures can occur several times per day (pyknoleptic course) or less frequently than daily (non-pyknoleptic course). Seizures typically terminate before adulthood, but a quarter of patients need ongoing treatment beyond adolescence. Little is known about their long-term seizure and psychosocial outcome. METHODS: Files of 135 outpatients with absence epilepsy (76 females; 123 had additional generalised tonic-clonic seizures) were retrospectively analysed after a median follow-up of 45.4 years (IQR: 31.9-56.2). Eighty-two subjects completed an additional interview. Patients were dichotomised according to age at epilepsy onset (childhood: n=82; juvenile: n=53) and course of absence seizures (pyknoleptic: n=80; non-pyknoleptic: n=55). RESULTS: Among all patients, 53% achieved 5-year terminal seizure remission, 16% without antiepileptic medication. Median age at last seizure was lower in patients with childhood onset of absence epilepsy (37.7 years) versus juvenile onset (44.4 years; P<=0.01). However, rates and duration of terminal seizure remission were similar. Pyknoleptic versus non-pyknoleptic course of absence seizures made no difference for long-term seizure outcome. Multivariate analysis identified only higher age at investigation to be associated with terminal 5-year seizure remission. Regarding aspects of psychosocial outcome, there were no significant differences between the respective subgroups. CONCLUSIONS: These data indicate that if absence epilepsy persists beyond adolescence, long-term seizure and psychosocial outcome do not differ between childhood and juvenile onset or between pyknoleptic and non-pyknoleptic course of absence epilepsy. However, higher patient age increases the chance of terminal seizure remission. PMID- 29348302 TI - Tracking brain damage in progressive supranuclear palsy: a longitudinal MRI study. AB - OBJECTIVES: In this prospective, longitudinal, multiparametric MRI study, we investigated clinical as well as brain grey matter and white matter (WM) regional changes in patients with progressive supranuclear palsy-Richardson's syndrome (PSP-RS). METHODS: Twenty-one patients with PSP-RS were evaluated at baseline relative to 36 healthy controls and after a mean follow-up of 1.4 years with clinical rating scales, neuropsychological tests and MRI scans. RESULTS: Relative to controls, patients with PSP-RS showed at baseline a typical pattern of brain damage, including midbrain atrophy, frontal cortical thinning and widespread WM involvement of the main infratentorial and supratentorial tracts that exceeded cortical damage. Longitudinal study showed that PSP-RS exhibited no further changes in cortical thinning, which remained relatively focal, while midbrain atrophy and WM damage significantly progressed. Corpus callosum and frontal WM tract changes correlated with the progression of both disease severity and behavioural dysfunction. CONCLUSIONS: This study demonstrated the feasibility of carrying out longitudinal diffusion tensor MRI in patients with PSP-RS and its sensitivity to identifying the progression of pathology. Longitudinal midbrain volume loss and WM changes are associated with PSP disease course. PMID- 29348304 TI - miR-20a-5p promotes adipogenic differentiation of murine bone marrow stromal cells via targeting Kruppel-like factor 3. AB - miR-20a-5p has recently been identified to induce adipogenesis of established adipogenic cell lines in our previous study. However, its role and molecular mechanisms in the regulation of adipocyte lineage commitment of bone marrow derived stromal cells (BMSCs) still need to be explored. In this report, we demonstrated the expression of miR-20a-5p was promoted gradually during adipogenic differentiation in BMSCs. We also confirmed that miR-20a-5p has a positive function in the adipogenic differentiation of BMSCs by gain-of-function study with overexpression lentivirus or synthetic mimics of miR-20a-5p, and loss of-function study with sponge lentivirus or synthetic inhibitor of miR-20a-5p. Dual luciferase reporter assay, GFP repression assay and Western blotting suggested Kruppel-like factor 3 (Klf3) was a direct target of miR-20a-5p. Furthermore, siRNA-mediated silencing of Klf3 recapitulated the potentiation of adipogenesis induced by miR-20a-5p overexpression, whereas enhanced expression of Klf3 attenuated the effect of miR-20a-5p. As Klf3 was reported to play an inhibitory role in adipogenesis at the initial stage of differentiation, the findings we present here indicate that miR-20a-5p promotes adipocyte differentiation from BMSCs by targeting and negatively regulating Klf3 in the early phase during the procedure of adipogenesis. PMID- 29348305 TI - The evolving clinical, genetic and therapeutic landscape of multiple endocrine neoplasia type 2. PMID- 29348306 TI - Novel targeted therapeutics for MEN2. AB - The rearranged during transfection (RET) proto-oncogene was recognized as the multiple endocrine neoplasia type 2 (MEN2) causing gene in 1993. Since then, much effort has been put into a clear understanding of its oncogenic signaling, its biochemical function and ways to block its aberrant activation in MEN2 and related cancers. Several small molecules have been designed, developed or redirected as RET inhibitors for the treatment of MEN2 and sporadic MTC. However, current drugs are mostly active against several other kinases, as they were not originally developed for RET. This limits efficacy and poses safety issues. Therefore, there is still much to do to improve targeted MEN2 treatments. New, more potent and selective molecules, or combinatorial strategies may lead to more effective therapies in the near future. Here, we review the rationale for RET targeting in MEN2, the use of currently available drugs and novel preclinical and clinical RET inhibitor candidates. PMID- 29348308 TI - Refining genetic stratification in T-ALL. PMID- 29348309 TI - Editing gene engineering to enhance function. PMID- 29348307 TI - Non-mammalian models of multiple endocrine neoplasia type 2. AB - Twenty-five years ago, RET was identified as the primary driver of multiple endocrine neoplasia type 2 (MEN2) syndrome. MEN2 is characterized by several transformation events including pheochromocytoma, parathyroid adenoma and, especially penetrant, medullary thyroid carcinoma (MTC). Overall, MTC is a rare but aggressive type of thyroid cancer for which no effective treatment currently exists. Surgery, radiation, radioisotope treatment and chemotherapeutics have all shown limited success, and none of these approaches have proven durable in advanced disease. Non-mammalian models that incorporate the oncogenic RET isoforms associated with MEN2 and other RET-associated diseases have been useful in delineating mechanisms underlying disease progression. These models have also identified novel targeted therapies as single agents and as combinations. These studies highlight the importance of modeling disease in the context of the whole animal, accounting for the complex interplay between tumor and normal cells in controlling disease progression as well as response to therapy. With convenient access to whole genome sequencing data from expanded thyroid cancer patient cohorts, non-mammalian models will become more complex, sophisticated and continue to complement future mammalian studies. In this review, we explore the contributions of non-mammalian models to our understanding of thyroid cancer including MTC, with a focus on Danio rerio and Drosophila melanogaster (fish and fly) models. PMID- 29348310 TI - ASXL1 mutations gain a function. PMID- 29348311 TI - Prochemerin processing by factor XIa. PMID- 29348312 TI - Composite morphologically and immunohistochemically distinct classical and pleomorphic mantle cell lymphomas. PMID- 29348313 TI - Sood R, Kamikubo Y, Liu P. Role of RUNX1 in hematological malignancies. Blood. 2017;129(15):2070-2082. PMID- 29348315 TI - Whole-Body Biodistribution and Dosimetry of the Dopamine Transporter Radioligand 18F-FE-PE2I in Human Subjects. AB - 18F-(E)-N-(3-iodoprop-2-enyl)-2beta-carbofluoroethoxy-3beta-(4'-methyl-phenyl) nortropane (18F-FE-PE2I) was recently developed and has shown adequate affinity and high selectivity for the dopamine transporter (DAT). Previous studies have shown promising results for 18F-FE-PE2I as a suitable radioligand for DAT imaging. In this study, we investigated the whole-body biodistribution and dosimetry of 18F-FE-PE2I in healthy volunteers to support its utility as a suitable PET imaging agent for the DAT. Methods: Five healthy volunteers were given a mean activity of 2.5 MBq/kg, and 3 PET scans, head to thigh, were performed immediately after injection followed by 4 whole-body PET/CT scans between 0.5 and 6 h after injection. Blood samples were drawn in connection with the whole-body scans, and all urine was collected until 6 h after injection. Volumes of interest were delineated around 17 organs on all images, and the areas under the time-activity curves were calculated to obtain the total number of decays in the organs. The absorbed doses to organs and the effective dose were calculated using the software IDAC. Results: The highest activity concentration was observed in the liver (0.9%-1.2% injected activity/100 g) up to 30 min after injection. At later time points, the highest concentration was seen in the gallbladder (1.1%-0.1% injected activity/100 g). The activity excreted with urine ranged between 23% and 34%, with a mean of 28%. The urinary bladder received the highest absorbed dose (119 MUGy/MBq), followed by the liver (46 MUGy/MBq). The effective dose was 23 MUSv/MBq (range, 19-28 MUSv/MBq), resulting in an effective dose of 4.6 mSv for an administered activity of 200 MBq. Conclusion: The effective dose is within the same order of magnitude as other commonly used PET imaging agents as well as DAT agents. The reasonable effective dose, together with the previously reported favorable characteristics for DAT imaging and quantification, indicates that 18F-FE-PE2I is a suitable radioligand for DAT imaging. PMID- 29348316 TI - Evaluation of Next-Generation Anti-CD20 Antibodies Labeled with 89Zr in Human Lymphoma Xenografts. AB - Radioimmunotherapies with monoclonal antibodies to the B-lymphocyte antigen 20 (CD20) are effective treatments for B-cell lymphomas, but U.S. Food and Drug Administration-approved radioimmunotherapies exclusively use radiolabeled murine antibodies, potentially limiting redosing. The Food and Drug Administration recently approved 2 unlabeled anti-CD20 monoclonal antibodies, obinutuzumab and ofatumumab, termed next generation as they are humanized (obinutuzumab) or fully human (ofatumumab), thus potentially allowing a greater potential for redosing than with previous-generation anti-CD20 antibodies, including rituximab (chimeric) and tositumomab (murine), which contain more murine peptide sequences. We prepared 89Zr-ofatumumab and 89Zr-obinituzumab and assessed their tumor targeting by PET/CT imaging and their biodistribution in a preclinical mouse model with CD20 xenografts to determine whether these antibodies have potential as theranostics or for radioimmunotherapy. Methods: Obinutuzumab, ofatumumab, rituximab, tositumomab, and human IgG (as control) were radiolabeled with 89Zr. Raji Burkitt lymphoma xenografts were established in severe combined immunodeficient mice. Mice with palpable tumors (n = 4-9) were injected with 89Zr obinutuzumab, 89Zr-ofatumumab, 89Zr-rituximab, 89Zr-tositumomab, or 89Zr-IgG, with small-animal PET/CT images acquired at 1, 3, and 7 d after injection, and then sacrificed for biodistribution analyses. Results: At 1, 3, and 7 d after injection, all anti-CD20 antibodies showed clear tumor uptake on PET/CT, with minimal tumor uptake of IgG. Biodistribution data showed significantly (P < 0.005) higher tumor uptake for obinutuzumab (41.4 +/- 7.6 percentage injected dose [%ID]/g), ofatumumab (32.6 +/- 17.5 %ID/g), rituximab (28.6 +/- 7.6 %ID/g), and tositumomab (28.0 +/- 6.5 %ID/g) than IgG (7.2 +/- 1.2 %ID/g). Tositumomab had much higher splenic uptake (186.4 +/- 49.7 %ID/g, P < 0.001) than the other antibodies. Conclusion:89Zr-labeled obinutuzumab and ofatumumab localized to tumor as well as or better than labeled rituximab and tositumomab, 2 monoclonal antibodies that have been used previously in B-cell lymphoma radioimmunotherapy, and both obinutuzumab and ofatumumab have the potential for repeated dosing. PMID- 29348317 TI - Head-to-Head Comparison of 11C-PBR28 and 18F-GE180 for Quantification of the Translocator Protein in the Human Brain. AB - 18F-GE180 is a third-generation PET tracer for quantifying the translocator protein (TSPO), a biomarker for inflammation. The aim of this study was to perform a head-to-head comparison of 18F-GE180 and the well-established TSPO tracer 11C-PBR28 by scanning with both tracers during the same day in the same subjects. Methods: Five subjects underwent a 90-min PET scan with 11C-PBR28 in the morning and 18F-GE180 in the afternoon. A metabolite-corrected arterial input function was obtained in each subject for both tracers, and the brain uptake was quantified with a 2-tissue-compartment model. Results: The rate of metabolism of 18F-GE180 in arterial blood was slower than that of 11C-PBR28 (the percentages of nonmetabolized parent in plasma at 90 min were 74.9% +/- 4.15% [mean +/- SD] and 11.2% +/- 1.90%, respectively). The plasma free fractions were similar for both tracers: 3.5% +/- 1.1% for 18F-GE180 and 4.1% +/- 1.1% for 11C-PBR28. The average total volume of distribution (VT) of 18F-GE180 was about 20 times smaller than that of 11C-PBR28 (0.15 +/- 0.03 mL/cm3 for 18F-GE180 and 3.27 +/- 0.66 mL/cm3 for 11C-PBR28). 18F-GE180 was characterized by poor transfer from the vascular compartment to the brain (its plasma-to-tissue rate constant [K1] was about 10 times smaller than that of 11C-PBR28). Moreover, kinetic modeling was more difficult with 18F-GE180, as its VT values were identified with a lower precision than those of 11C-PBR28 and outlying values were more frequent. Conclusion: The VT of 18F-GE180 was about 20 times smaller than that of 11C-PBR28 because of low penetration into the brain from the vascular compartment. In addition, kinetic modeling of 18F-GE180 was more challenging than that of 11C-PBR28. Therefore, compared with 11C-PBR28, 18F-GE180 had unfavorable characteristics for TSPO imaging of the brain. PMID- 29348318 TI - Reply: Optimizing Strategies for Immune Checkpoint Imaging with Immuno-PET in Preclinical Study. PMID- 29348319 TI - Reply: Doxorubicin Effect on Myocardial Metabolism as a Prerequisite for Subsequent Development of Cardiac Toxicity: Are There Unsuspected Confounders? PMID- 29348320 TI - 18F-FDG PET/CT in Local Ablative Therapies: A Systematic Review. AB - Driven by the continuous improvement in the accuracy of cross-sectional imaging, image-guided minimally invasive local ablative therapies have received incremental interest over the past few years. In this article, we systematically review the currently available literature on 18F-FDG PET/CT to monitor the efficacy of these local ablative therapies. By including all local ablative treatment modalities, tumor types, and organ sites, we provide a comprehensive overview of the current status, identify general patterns across studies, and provide recommendations for future studies and clinical practice. The Quality Assessment of Diagnostic Accuracy Studies (QUADAS) criteria were used to assess the quality of the reported diagnostic accuracy of the retrieved studies. Data in the literature suggest that 18F-FDG PET/CT is a highly accurate tool to assess the technical success of local treatment, to identify residual or recurrent tumor early after intervention, and to provide prognostic and predictive information. However, prospective interventional studies based on 18F-FDG PET/CT findings of disease activity are mandatory to develop uniform and quantitative criteria for PET evaluation. Moreover, the optimal timing of 18F-FDG PET/CT after treatment may vary according to the location of the disease, with very early imaging being possible in solid organs such as the liver but posttreatment imaging being challenging for 3 mo in a location such as the lung parenchyma. PMID- 29348321 TI - Lower Limbic Metabotropic Glutamate Receptor 5 Availability in Alcohol Dependence. AB - Animal studies suggest an important role for the metabotropic glutamate receptor subtype 5 (mGlu5) in the pathophysiology of alcohol dependence, but direct human evidence is lacking. The goal of this study was to investigate cerebral mGlu5 availability in alcohol-dependent subjects versus controls using 18F-3-fluoro-5 [(pyridin-3-yl)ethynyl]benzonitrile (18F-FPEB) PET. Methods: Dynamic 90-min 18F FPEB scans combined with arterial blood sampling were acquired for 16 recently abstinent alcohol-dependent subjects and 32 age-matched controls. Regional mGlu5 availability was quantified by the 18F-FPEB total distribution volume using both a voxel-by-voxel and a volume-of-interest analysis with partial-volume effect correction. Alcohol consumption within the last 3 mo was assessed by questionnaires and by hair ethyl glucuronide analysis. Craving was assessed using the Desire for Alcohol Questionnaire. Results: mGlu5 availability was lower in mainly limbic regions of alcohol-dependent subjects than in controls (P < 0.05, familywise error-corrected), ranging from 14% in the posterior cingulate cortex to 36% in the caudate nucleus. Lower mGlu5 availability was associated with higher hair ethyl glucuronide levels for most regions and was related to a lower level of craving specifically in the middle frontal gyrus, cingulate cortex, and inferolateral temporal lobe. Conclusion: These findings provide human in vivo evidence that limbic mGlu5 has a role in the pathophysiology of alcohol dependence, possibly involved in a compensatory mechanism helping to reduce craving during abstinence. PMID- 29348322 TI - Long-Term Risk of Myocardial Infarction Compared to Recurrent Stroke After Transient Ischemic Attack and Ischemic Stroke: Systematic Review and Meta Analysis. AB - BACKGROUND: Uncertainties remain about the current risk of myocardial infarction (MI) after ischemic stroke or transient ischemic attack. METHODS AND RESULTS: We undertook a systematic review to estimate the long-term risk of MI, compared to recurrent stroke, with temporal trends in ischemic stroke/transient ischemic attack patients. Annual risks and 95% confidence intervals (95% CI) of MI and recurrent stroke were estimated using random-effect meta-analyses. We calculated incidence ratios of MI/recurrent stroke, for fatal and nonfatal events, using similar analyses. Rate ratios for MI in patients with potential risk factors compared to those without were calculated using Poisson regression.A total of 58 studies (131 299 patients) with a mean (range) follow-up of 3.5 (1.0-10.0) years were included. The risk of MI was 1.67%/y (95% CI 1.36-1.98, Phet<0.001 for heterogeneity) and decreased over time (Pint=0.021); 96% of the heterogeneity between studies was explained by study design, study period, follow-up duration, mean age, proportion of patients on antithrombotic therapy, and incident versus combined ischemic stroke/transient ischemic attack. The risk of recurrent stroke was 4.26%/y (95% CI 3.43-5.09, Phet<0.001), with no change over time (Pint=0.63). The risk of fatal MI was half the risk of recurrent strokes ending in fatality (incidence ratio=0.51, 95% CI 0.14-0.89, Phet=0.58). The risk of nonfatal MI was 75% smaller than the risk of recurrent nonfatal stroke (incidence ratio=0.25, 95%CI 0.02-0.50, Phet=0.68). Male sex, hypertension, coronary and peripheral artery diseases were associated with a doubled risk of MI. CONCLUSIONS: After ischemic stroke/transient ischemic attack, the risk of MI is currently <2%/y, and recurrent stroke is a more common cause of death than MI. PMID- 29348323 TI - Epothilone B Benefits Nigrostriatal Pathway Recovery by Promoting Microtubule Stabilization After Intracerebral Hemorrhage. AB - BACKGROUND: Many previous clinical studies have demonstrated that the nigrostriatal pathway, which plays a vital role in movement adjustment, is significantly impaired after stroke, according to medical imaging and autopsies. However, the basic pathomorphological changes have been poorly investigated to date. This study was designed to explore the pathomorphological changes, mechanism, and therapeutic method of nigrostriatal impairment after intracerebral hemorrhage (ICH). METHODS AND RESULTS: Intrastriatal injection of autologous blood or microtubule depolymerization reagent nocodazole was performed to mimic the pathology of ICH in C57/BL6 mice. Immunofluorescence, Western blotting, electron microscopy, functional behavioral tests, and anterograde and retrograde neural circuit tracking techniques were used in these mice. The data showed that the number of dopamine neurons and the dopamine concentration were severely decreased and that fine motor function was impaired after ICH. Microtubule depolymerization was the main contributor to the loss of dopamine neurons and to motor function deficits after ICH, as was also proven by intrastriatal injection of nocodazole. Moreover, administration of the microtubule stabilizer epothilone B (1.5 mg/kg) improved the integrity of the nigrostriatal pathway neural circuit, increased the number of dopamine neurons (4598+/-896 versus 3125+/-355; P=0.034) and the dopamine concentration (4.28+/-0.99 versus 3.08+/-0.75 ng/mg; P=0.041), and enhanced fine motor functional recovery associated with increased acetylated alpha-tubulin expression to maintain microtubule stabilization after ICH. CONCLUSIONS: Our results clarified the pathomorphological changes of the nigrostriatal pathway after ICH and found that epothilone B helped alleviate nigrostriatal pathway injury after ICH, associated with promoting alpha-tubulin acetylation to maintain microtubule stabilization, thus facilitating motor recovery. PMID- 29348325 TI - Low-Level, Global Transcription during Mitosis and Dynamic Gene Reactivation during Mitotic Exit. AB - Mitosis is thought to be a period of transcriptional silence due to the compact nature of mitotic chromosomes and the apparent exclusion of RNA Pol II and many transcription factors from mitotic chromatin. Yet accurate reactivation of a cell's specific gene expression program is needed to reestablish functional cell identity after mitosis. The majority of studies on protein regulation and localization during mitosis have relied extensively on antibodies and cross linking-based approaches that are known to artifactually exclude proteins from mitotic chromatin. Here we show that RNA Pol II localization in mitosis is antibody- and fixation-dependent, and that direct assessment of transcription by pulse-labeling nascent RNA reveals global, low-level mitotic transcription. We also find a hierarchy of gene reactivation as the cells transition from mitosis to their interphase amplitude of gene expression. Resetting of gene transcription during mitotic exit is coincident with enhancer transcription. Our work thus shifts focus from assessing mitotic exit as a binary transcription switch to a more nuanced concert of transcription amplitude and enhancer usage. We suggest that understanding how gene expression patterns are conserved during mitosis rests upon deciphering how transcription is maintained by promoters. PMID- 29348324 TI - PlexinD1 signaling controls morphological changes and migration termination in newborn neurons. AB - Newborn neurons maintain a very simple, bipolar shape, while they migrate from their birthplace toward their destinations in the brain, where they differentiate into mature neurons with complex dendritic morphologies. Here, we report a mechanism by which the termination of neuronal migration is maintained in the postnatal olfactory bulb (OB). During neuronal deceleration in the OB, newborn neurons transiently extend a protrusion from the proximal part of their leading process in the resting phase, which we refer to as a filopodium-like lateral protrusion (FLP). The FLP formation is induced by PlexinD1 downregulation and local Rac1 activation, which coincide with microtubule reorganization and the pausing of somal translocation. The somal translocation of resting neurons is suppressed by microtubule polymerization within the FLP The timing of neuronal migration termination, controlled by Sema3E-PlexinD1-Rac1 signaling, influences the final positioning, dendritic patterns, and functions of the neurons in the OB These results suggest that PlexinD1 signaling controls FLP formation and the termination of neuronal migration through a precise control of microtubule dynamics. PMID- 29348327 TI - Genome Instability as a Consequence of Defects in the Resolution of Recombination Intermediates. AB - The efficient processing of homologous recombination (HR) intermediates, which often contain four-way structures known as Holliday junctions (HJs), is required for proper chromosome segregation at mitosis. Eukaryotic cells possess three distinct pathways of resolution: (i) HJ dissolution mediated by BLM-topoisomerase IIIalpha-RMI1-RMI2 (BTR) complex, and HJ resolution catalyzed by either (ii) SLX1 SLX4-MUS81-EME1-XPF-ERCC1 (SMX complex) or (iii) GEN1. The BTR pathway acts at all times throughout the cell cycle, whereas the actions of SMX and GEN1 are restrained in S phase and become elevated late in the cell cycle to ensure the resolution of persistent recombination intermediates before mitotic division. By developing a "resolvase-deficient" model system in which the activities of MUS81 and GEN1 are compromised, we have explored the fate of unresolved recombination intermediates. We find that covalently linked sister chromatids promote the formation of a new class of ultrafine bridges at anaphase that we term HR-UFBs. These bridges are broken at cell division, leading to activation of the DNA damage checkpoint and repair by nonhomologous end joining (NHEJ) in the next cell cycle. As a consequence, high levels of gross chromosomal rearrangements and aberrations are observed, together with frequent cell death. These results show that the HJ resolvases provide essential functions for the resolution of recombination intermediates, even in cells that remain proficient for BTR mediated HJ dissolution. PMID- 29348326 TI - Symmetry from Asymmetry or Asymmetry from Symmetry? AB - The processes of DNA replication and mitosis allow the genetic information of a cell to be copied and transferred reliably to its daughter cells. However, if DNA replication and cell division were always performed in a symmetric manner, the result would be a cluster of tumor cells instead of a multicellular organism. Therefore, gaining a complete understanding of any complex living organism depends on learning how cells become different while faithfully maintaining the same genetic material. It is well recognized that the distinct epigenetic information contained in each cell type defines its unique gene expression program. Nevertheless, how epigenetic information contained in the parental cell is either maintained or changed in the daughter cells remains largely unknown. During the asymmetric cell division (ACD) of Drosophila male germline stem cells, our previous work revealed that preexisting histones are selectively retained in the renewed stem cell daughter, whereas newly synthesized histones are enriched in the differentiating daughter cell. We also found that randomized inheritance of preexisting histones versus newly synthesized histones results in both stem cell loss and progenitor germ cell tumor phenotypes, suggesting that programmed histone inheritance is a key epigenetic player for cells to either remember or reset cell fates. Here, we will discuss these findings in the context of current knowledge on DNA replication, polarized mitotic machinery, and ACD for both animal development and tissue homeostasis. We will also speculate on some potential mechanisms underlying asymmetric histone inheritance, which may be used in other biological events to achieve the asymmetric cell fates. PMID- 29348328 TI - Correction for Johnson et al., "Complete Genome Sequences for 35 Biothreat Assay Relevant Bacillus Species". PMID- 29348329 TI - Draft Genome Sequences of 510 Listeria monocytogenes Strains from Food Isolates and Human Listeriosis Cases from Northern Italy. AB - Listeriosis outbreaks are frequently multistate/multicountry outbreaks, underlining the importance of molecular typing data for several diverse and well characterized isolates. Large-scale whole-genome sequencing studies on Listeria monocytogenes isolates from non-U.S. locations have been limited. Herein, we describe the draft genome sequences of 510 L. monocytogenes isolates from northern Italy from different sources. PMID- 29348330 TI - Complete Genome Sequence of Escherichia coli Bacteriophage PGT2. AB - Bacteriophage PGT2 was isolated from horse feces by using an uncharacterized Escherichia coli strain, 7s, isolated from the same sample as the host. Bacteriophage PGT2 and a related phage, phiKT, which was previously isolated from the same source, are likely to represent a new genus within the Autographivirinae subfamily of the Podoviridae family of viruses. PMID- 29348331 TI - Draft Genome Sequences of Two Vibrio parahaemolyticus Strains Associated with Gastroenteritis after Raw Seafood Ingestion in Colorado. AB - Vibrio parahaemolyticus is a Gram-negative pathogen associated with gastrointestinal and wound infections after exposure to raw seafood or contaminated waters. We report here the whole-genome sequences of two stool isolates (CDC-AM50933 and CDC-AM43539) from patients in Colorado presenting with gastroenteritis after ingesting raw seafood. PMID- 29348332 TI - Draft Genome Sequence of Mycobacterium setense CSUR47. AB - Mycobacterium setense CSUR47 is a rapidly growing Mycobacterium species strain isolated from pus collected from a left maxillary sinus in Marseille, France. Here, we report the complete 6,278,097-bp genome sequence of M. setense CSUR47, which exhibits a 66.40% GC content and encodes 5,863 protein-coding genes, 48 tRNAs, and 9 rRNAs. PMID- 29348333 TI - Draft Genome Sequence and Annotation of the Obligate Bacterial Endosymbiont Caedibacter taeniospiralis, Causative Agent of the Killer Phenotype in Paramecium tetraurelia. AB - Caedibacter taeniospiralis is an obligate endosymbiont living in the cytoplasm of Paramecium tetraureliaC. taeniospiralis causes the so-called killer trait, eliminating intraspecific competitors of its host when released into the medium by the concerted action of the unusual protein structure R-body (refractile body) in addition to an as-yet-unknown toxin. PMID- 29348334 TI - Draft Genome Sequences of Phenotypically Distinct Janthinobacterium sp. Isolates Cultured from the Hudson Valley Watershed. AB - Investigation of the Hudson Valley watershed reveals many violacein-producing bacteria. These are of interest for their biotherapeutic potential in treating chytrid infections of amphibians. The draft whole-genome sequences for seven Janthinobacterium isolates with a variety of phenotypes are provided in this study. PMID- 29348335 TI - Complete Genome Sequence of the African Green Monkey Simian Foamy Virus Serotype 3 Strain FV2014 (SFVcae_FV2014). AB - The full-length sequence of simian foamy virus serotype 3 (SFV-3) strain FV2014, an African green monkey (Chlorocebus aethiops) isolate, was obtained using high throughput sequencing. SFVcae_FV2014 consisted of 13,127 bp and had a genomic organization similar to those of other SFVs but was distinct from SFV strain LK3, isolated from the same monkey species. PMID- 29348336 TI - Nine Whole-Genome Assemblies of Yersinia pestis subsp. microtus bv. Altaica Strains Isolated from the Altai Mountain Natural Plague Focus (No. 36) in Russia. AB - We report here the draft genome sequences of nine Yersinia pestis subsp. microtus bv. Altaica strains isolated from the Altai Mountain plague focus (no. 36), which represent the 0.PE4 phylogroup circulating in populations of Mongolian pika (Ochotona pallasi). PMID- 29348337 TI - Complete Genome Sequence of Sphingorhabdus sp. YGSMI21, Exhibiting High Enantioselective Epoxide Hydrolase Activity. AB - Sphingorhabdus sp. YGSMI21 is a novel strain exhibiting high enantioselective hydrolysis activity for styrene oxide. Here, we present its complete genome sequence, consisting of one circular chromosome (3.86 Mb) and one plasmid (0.196 Mb). PMID- 29348338 TI - Draft Genome Sequence of a Novel Bacterium, Pseudomonas sp. Strain MR 02, Capable of Pyomelanin Production, Isolated from the Mahananda River at Siliguri, West Bengal, India. AB - The draft genome sequence of a novel strain, Pseudomonas sp. MR 02, a pyomelanin producing bacterium isolated from the Mahananda River at Siliguri, West Bengal, India, is reported here. This strain has a genome size of 5.94 Mb, with an overall G+C content of 62.6%. The draft genome reports 5,799 genes (mean gene length, 923 bp), among which 5,503 are protein-coding genes, including the genes required for the catabolism of tyrosine or phenylalanine for the characteristic production of homogentisic acid (HGA). Excess HGA, on excretion, auto-oxidizes and polymerizes to form pyomelanin. PMID- 29348339 TI - Draft Genome Sequences of Strains TRE 1, TRE D, TRE H, and TRI 7, Isolated from Tamarins and Belonging to Four Putative Novel Bifidobacterium Species. AB - Bifidobacterium sp. strains TRE 1, TRE D, TRE H, and TRI 7 were isolated from two tamarins housed in Parco Natura Viva, Garda Zoological Park S.r.l. (Bussolengo, Verona, Italy). These strains belong to four putative novel species of the genus Bifidobacterium The genome sizes were 2.7 Mb for TRE 1, 2.7 Mb for TRE D, 2.4 Mb for TRE H, and 2.7 Mb for TRI 7. The average GC contents were 63.18% for TRE 1, 58.27% for TRE D, 57.11% for TRE H, and 63.79% for TRI 7. PMID- 29348340 TI - Complete Genome Sequence of Bacillus methylotrophicus Strain NKG-1, Isolated from the Changbai Mountains, China. AB - We report here the complete genome sequence of Bacillus methylotrophicus NKG-1, isolated from rare dormant volcanic soils on the Changbai Mountains in China. The 4.20-Mb genome contains 4,432 genes and has a G+C content of 47.06%. PMID- 29348341 TI - Draft Genome Sequence of Escherichia coli Strain SN137, a Bacterium with Extracellular Proteolytic Activity on Immunoglobulins and Persistence in Human Tissue Blood. AB - The draft genome sequence of Escherichia coli strain SN137 is reported here. The genome comprises 172 contigs, corresponding to 4.9 Mb with 50% G+C content, and contains several genes related to pathogenicity that explain its survival in human hematic tissue. PMID- 29348342 TI - Draft Genome Sequence of the Crude Oil-Degrading and Biosurfactant-Producing Strain Cobetia sp. QF-1. AB - We report here the draft genome of Cobetia sp. QF-1, a cold-adapted bacterium isolated from crude oil-contaminated seawater of the Yellow Sea, China. This genome is approximately 4.1 Mb (G+C content, 57.44%) with 3,513 protein-coding sequences. Cobetia sp. QF-1 shows crude oil degradation and biosurfactant production activity at low temperature. PMID- 29348343 TI - Draft Genome Sequence of Coxiella burnetii Historical Strain Leningrad-2, Isolated from Blood of a Patient with Acute Q Fever in Saint Petersburg, Russia. AB - This is the announcement of a draft genome sequence of Coxiella burnetii strain Leningrad-2, phase I. The strain, which is mildly virulent in infected guinea pigs, was isolated in 1957 from the blood of a patient with acute Q fever in Leningrad (now Saint Petersburg), Russia. PMID- 29348345 TI - Draft Genome Sequence of Vibrio parahaemolyticus Strain M1-1, Which Causes Acute Hepatopancreatic Necrosis Disease in Shrimp in Vietnam. AB - We report here the genome sequence of Vibrio parahaemolyticus strain M1-1, which causes a mild form of shrimp acute hepatopancreatic necrosis disease (AHPND). Compared to other virulent strains, the M1-1 genome appeared to express several additional genes, while some genes were missing. These instabilities may be related to the reduced virulence of M1-1. PMID- 29348344 TI - Draft Genome Sequence of Bacillus velezensis OSY-S3, a Producer of Potent Antimicrobial Agents Active against Bacteria and Fungi. AB - Bacillus velezensis OSY-S3 produces anti-Listeria, anti-Escherichia coli, and antifungal compounds. Additionally, fermentate of B. velezensis OSY-S3 culture removes Staphylococcus aureus biofilms effectively. The draft genome sequence of B. velezensis OSY-S3 reported here had a genome size of ~3.90 Mb and a G+C content of 46.5%. PMID- 29348346 TI - Draft Genome Sequence of Streptococcus canis Clinical Strain TA4, Harboring the M Like Protein Gene and Isolated in Japan from a Patient with Bacteremia. AB - Streptococcus canis is an animal-origin beta-hemolytic bacterium that can cause severe infections in animals and occasionally infects humans. Here, we report a draft genome sequence of an S. canis strain harboring the M-like protein gene. This strain was isolated from a patient with bacteremia (reported by Taniyama et al. [D. Taniyama, Y. Abe, T. Sakai, T. Kikuchi, and T. Takahashi, IDCases 7:48 52, 2017, https://doi.org/10.1016/j.idcr.2017.01.002]). The draft genome comprises 2,129,080 bp in 60 contigs. PMID- 29348347 TI - Completed Genome Sequences of Strains from 36 Serotypes of Salmonella. AB - We report here the completed closed genome sequences of strains representing 36 serotypes of Salmonella These genome sequences will provide useful references for understanding the genetic variation between serotypes, particularly as references for mapping of raw reads or to create assemblies of higher quality, as well as to aid in studies of comparative genomics of Salmonella. PMID- 29348348 TI - Whole-Genome Sequence of a Mycobacterium goodii Isolate from a Pediatric Patient in South Africa. AB - We describe here the draft genome sequence of a Mycobacterium goodii isolate from a pediatric patient in Western Cape, South Africa. To our knowledge, this is the second reported genome of this rapidly growing nontuberculous mycobacterial species. PMID- 29348349 TI - Complete Genome Sequence of Streptomyces Bacteriophage Abt2graduatex2. AB - The Streptomyces bacteriophage Abt2graduatex2 is a double-stranded DNA (dsDNA) Siphoviridae isolated from soil collected in Baltimore, MD, and harvested using Streptomyces griseus subsp. griseus Abt2graduatex2, a cluster BG phage, encodes an HicA-like toxin. PMID- 29348350 TI - Draft Genome Sequences of 14 Strains of Pseudomonas Isolated from Prunus sp. Plants. AB - We present here the draft genome sequences of 14 Pseudomonas strains isolated from Prunus sp. plants in New Zealand and overseas. These new genomic data will be used to improve the detection of Pseudomonas strains found in imported plant material at the New Zealand border, improving the time involved in the process of biosecurity decision-making. PMID- 29348351 TI - Complete Genome Sequence of the Halophilic Methylotrophic Methanogen Archaeon Methanohalophilus portucalensis Strain FDF-1T. AB - We report here the complete genome sequence (2.08 Mb) of Methanohalophilus portucalensis strain FDF-1T, a halophilic methylotrophic methanogen isolated from the sediment of a saltern in Figeria da Foz, Portugal. The average nucleotide identity and DNA-DNA hybridization analyses show that Methanohalophilus mahii, M. halophilus, and M. portucalensis are three different species within the Methanosarcinaceae family. PMID- 29348352 TI - Complete Genome Sequence of Lacinutrix venerupis DOK2-8 Isolated from Marine Sediment from the East Sea, Republic of Korea. AB - Lacinutrix venerupis has recently been considered a potential fish pathogen. Here, we report the complete genome sequence of L. venerupis DOK2-8, which possesses several virulence-related genes. This strain may be potentially virulent to other marine organisms, and its genomic information will provide important insights into the biodiversity of the genus Lacinutrix. PMID- 29348353 TI - Next-Generation Sequencing Reveals the First Complete Genome Sequence of Cowpea aphid-borne mosaic virus from Uganda. AB - We present here the first complete genome sequence of Cowpea aphid-borne mosaic virus (CABMV) isolated from cowpea in Uganda and compare it with five CABMV complete genome sequences from Brazil (2), India (2), and Zimbabwe (1). It most resembled the genomes of two Brazilian isolates (MG-Avr and BR1) and one Indian isolate (RR3). PMID- 29348354 TI - Genome Sequence of Enterococcus mundtii EM01, Isolated from Bombyx mori Midgut and Responsible for Flacherie Disease in Silkworms Reared on an Artificial Diet. AB - The whole genome sequence of Enterococcus mundtii strain EM01 is reported here. The isolate proved to be the cause of flacherie in Bombyx mori To date, the genomes of 11 other E. mundtii strains have been sequenced. EM01 is the only strain that displayed active pathological effects on its associated animal species. PMID- 29348355 TI - Genome Sequence of Trypanosoma cruzi Strain Bug2148. AB - Trypanosoma cruzi belongs to the group of mitochondrion-containing eukaryotes and has a highly plastic genome, unusual gene organization, and complex mechanisms for gene expression (polycistronic transcription). We report here the genome sequence of strain Bug2148, the first genomic sequence belonging to cluster TcV, which has been related to vertical transmission. PMID- 29348356 TI - Draft Genome Sequence of Fusarium fujikuroi, a Fungus Adapted to the Fuel Environment. AB - Fusarium fujikuroi isolate FUS01 is highly adapted to grow in jet fuel with predicted genes involved in hydrocarbon catabolism and carbon assimilation. The draft genome size is estimated at 49 Mb containing 18,578 proteins with high similarity to that of F. fujikuroi isolate B14. PMID- 29348357 TI - Draft Genome Sequence of Bacillus subtilis 2C-9B, a Strain with Biocontrol Potential against Chili Pepper Root Pathogens and Tolerance to Pb and Zn. AB - Bacillus subtilis 2C-9B, obtained from the rhizosphere of wild grass, exhibits inhibition against root rot causal pathogens in Capsicum annuum, Pb and Zn tolerance, and plant growth promotion in medium supplemented with Pb. The genome of B. subtilis 2C-9B was sequenced and the draft genome assembled, with a length of 4,215,855 bp and 4,723 coding genes. PMID- 29348358 TI - Complete Genome Sequence of Kyrpidia sp. Strain EA-1, a Thermophilic Knallgas Bacterium, Isolated from the Azores. AB - Kyrpidia sp. strain EA-1 is a thermophilic hydrogen-oxidizing bacterium isolated from hydrothermal systems at Sao Miguel Island, Portugal. Here, we present the complete genome sequence of the strain assembled to a single circular chromosome. The genome spans 3,352,175 bp, with a GC content of 58.7%. PMID- 29348359 TI - Complete Genome Sequence of the Type Strain of Macrococcus canis. AB - The first complete genome sequence of the recently described Macrococcus canis species has been determined for the strain KM45013T (=DSM 101690T = CCOS 969T = CCUG 68920T = CCM 8748T). The strain was isolated from a dog with rhinitis and contains a putative gamma-hemolysin and a mecB-carrying staphylococcal cassette chromosome mec element (SCCmecKM45013). PMID- 29348360 TI - Complete Genome Sequences of Three Moraxella osloensis Strains Isolated from Human Skin. AB - Here, we present the complete whole-genome sequences of three Moraxella osloensis strains with octylphenol polyethoxylate-degrading abilities. These strains were isolated from human skin. PMID- 29348361 TI - Complete Genome Sequence of Paracoccus yeei TT13, Isolated from Human Skin. AB - Paracoccus yeei TT13 was isolated from human skin because of its ability to degrade propylene glycol. Here, we present the whole-genome sequence of this strain; it possesses one 3.58-Mb chromosome and six plasmids. TT13 genome analysis indicated that this bacterium has denitrification potential. PMID- 29348362 TI - Draft Genome Sequence of a Multistress-Tolerant Yeast, Pichia kudriavzevii NG7. AB - Pichia kudriavzevii NG7 is a multistress-tolerant yeast, isolated from grape skins. Here, we report the draft genome sequence of P. kudriavzevii NG7, to understand its biochemical regulation and metabolic pathways. PMID- 29348363 TI - Atomic-resolution transmission electron microscopy of electron beam-sensitive crystalline materials. AB - High-resolution imaging of electron beam-sensitive materials is one of the most difficult applications of transmission electron microscopy (TEM). The challenges are manifold, including the acquisition of images with extremely low beam doses, the time-constrained search for crystal zone axes, the precise image alignment, and the accurate determination of the defocus value. We develop a suite of methods to fulfill these requirements and acquire atomic-resolution TEM images of several metal organic frameworks that are generally recognized as highly sensitive to electron beams. The high image resolution allows us to identify individual metal atomic columns, various types of surface termination, and benzene rings in the organic linkers. We also apply our methods to other electron beam-sensitive materials, including the organic-inorganic hybrid perovskite CH3NH3PbBr3. PMID- 29348364 TI - Building superlattices from individual nanoparticles via template-confined DNA mediated assembly. AB - DNA programmable assembly has been combined with top-down lithography to construct superlattices of discrete, reconfigurable nanoparticle architectures on a gold surface over large areas. Specifically, the assembly of individual colloidal plasmonic nanoparticles with different shapes and sizes is controlled by oligonucleotides containing "locked" nucleic acids and confined environments provided by polymer pores to yield oriented architectures that feature tunable arrangements and independently controllable distances at both nanometer- and micrometer-length scales. These structures, which would be difficult to construct by other common assembly methods, provide a platform to systematically study and control light-matter interactions in nanoparticle-based optical materials. The generality and potential of this approach are explored by identifying a broadband absorber with a solvent polarity response that allows dynamic tuning of visible light absorption. PMID- 29348366 TI - Structures of human PRC2 with its cofactors AEBP2 and JARID2. AB - Transcriptionally repressive histone H3 lysine 27 methylation by Polycomb repressive complex 2 (PRC2) is essential for cellular differentiation and development. Here we report cryo-electron microscopy structures of human PRC2 in a basal state and two distinct active states while in complex with its cofactors JARID2 and AEBP2. Both cofactors mimic the binding of histone H3 tails. JARID2, methylated by PRC2, mimics a methylated H3 tail to stimulate PRC2 activity, whereas AEBP2 interacts with the RBAP48 subunit, mimicking an unmodified H3 tail. SUZ12 interacts with all other subunits within the assembly and thus contributes to the stability of the complex. Our analysis defines the complete architecture of a functionally relevant PRC2 and provides a structural framework to understand its regulation by cofactors, histone tails, and RNA. PMID- 29348365 TI - Detection and localization of surgically resectable cancers with a multi-analyte blood test. AB - Earlier detection is key to reducing cancer deaths. Here, we describe a blood test that can detect eight common cancer types through assessment of the levels of circulating proteins and mutations in cell-free DNA. We applied this test, called CancerSEEK, to 1005 patients with nonmetastatic, clinically detected cancers of the ovary, liver, stomach, pancreas, esophagus, colorectum, lung, or breast. CancerSEEK tests were positive in a median of 70% of the eight cancer types. The sensitivities ranged from 69 to 98% for the detection of five cancer types (ovary, liver, stomach, pancreas, and esophagus) for which there are no screening tests available for average-risk individuals. The specificity of CancerSEEK was greater than 99%: only 7 of 812 healthy controls scored positive. In addition, CancerSEEK localized the cancer to a small number of anatomic sites in a median of 83% of the patients. PMID- 29348369 TI - [History of Researches on Myalgic Encephalomyelitis/Chronic Fatigue Syndrome]. AB - Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disease characterized by chronic, profound, disabling, and unexplained fatigue. The first patient with ME/CFS in Japan was identified and described in 1990 by Prof. Teruo Kitani and Dr. Hirohiko Kuratsune of the Research Institute for Microbial Diseases, Osaka University. Since then, a variety of studies have been performed to determine the objective biomarkers of the disease. Although it is hypothesized that brain inflammation is involved in the pathophysiology of ME/CFS, there is to date no direct evidence of neuroinflammation in patients with ME/CFS. Our recent positron emission tomography study successfully demonstrated that microglial activation, which is linked to neuroinflammation, occurs in widespread brain areas in patients with ME/CFS, and is associated with the severity of the neuropsychological symptoms. Thus, evaluation of neuroinflammation in patients with ME/CFS may be essential for understanding the core pathophysiology of the disease, and for developing objective diagnostic criteria and effective medical treatments for ME/CFS. Here, we describe disease-related pathophysiological findings and topics, and discuss the history of the diagnostic and therapeutic attempts based on previous findings in Japan. PMID- 29348368 TI - Defining the physiological role of SRP in protein-targeting efficiency and specificity. AB - The signal recognition particle (SRP) enables cotranslational delivery of proteins for translocation into the endoplasmic reticulum (ER), but its full in vivo role remains incompletely explored. We combined rapid auxin-induced SRP degradation with proximity-specific ribosome profiling to define SRP's in vivo function in yeast. Despite the classic view that SRP recognizes amino-terminal signal sequences, we show that SRP was generally essential for targeting transmembrane domains regardless of their position relative to the amino terminus. By contrast, many proteins containing cleavable amino-terminal signal peptides were efficiently cotranslationally targeted in SRP's absence. We also reveal an unanticipated consequence of SRP loss: Transcripts normally targeted to the ER were mistargeted to mitochondria, leading to mitochondrial defects. These results elucidate SRP's essential roles in maintaining the efficiency and specificity of protein targeting. PMID- 29348367 TI - A pathway for mitotic chromosome formation. AB - Mitotic chromosomes fold as compact arrays of chromatin loops. To identify the pathway of mitotic chromosome formation, we combined imaging and Hi-C analysis of synchronous DT40 cell cultures with polymer simulations. Here we show that in prophase, the interphase organization is rapidly lost in a condensin-dependent manner, and arrays of consecutive 60-kilobase (kb) loops are formed. During prometaphase, ~80-kb inner loops are nested within ~400-kb outer loops. The loop array acquires a helical arrangement with consecutive loops emanating from a central "spiral staircase" condensin scaffold. The size of helical turns progressively increases to ~12 megabases during prometaphase. Acute depletion of condensin I or II shows that nested loops form by differential action of the two condensins, whereas condensin II is required for helical winding. PMID- 29348370 TI - [Diagnosis and Treatment of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome]. AB - We present here the Japanese clinical diagnostic criteria for myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) that were proposed in 2016 by the Japanese Ministry of Health, Labour and Welfare study group. The clinical diagnosis criteria of ME/CFS were created to be used by healthcare agencies in charge of primary care practice. We also explain the current prognosis in ME/CFS and medical treatments used in major medical institutions in Japan. PMID- 29348371 TI - [Neuroinflammation in the Brain of Patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome]. AB - Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is characterized by chronic, profound, disabling, and unexplained fatigue; cognitive impairment; and chronic widespread pain. By using positron emission tomography, our study demonstrated neuroinflammation in the brain of patients with ME/CFS. Neuroinflammation was found to be widespread in the brain areas of the patients with ME/CFS and was associated with the severity of their neuropsychological symptoms. The ongoing research would lead to the establishment of objective diagnostic criteria and development of an appropriate therapy. PMID- 29348372 TI - [New Diagnostic Biomarkers for Chronic Fatigue Syndrome]. AB - Chronic fatigue syndrome (CFS) is a persistent and unexplained pathological state characterized by exertional and severely debilitating fatigue, with/without symptoms of infection or neuropsychiatric symptoms, and with a minimum duration of 6 consecutive months. The pathogenesis of CFS is not fully understood. There are no firmly established diagnostic biomarkers or treatment, due to incomplete understanding of the etiology of CFS and diagnostic uncertainty. We performed comprehensive metabolomic analyses of blood samples obtained from patients with CFS and healthy controls to establish an objective diagnosis of CFS. Here, we review previous findings concerning the immune, endocrine, and metabolic system in animal models for CFS and the patients, and present our results which may contribute to the development of a diagnostic biomarker for CFS. PMID- 29348373 TI - [Immunopathogenesis of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS)]. AB - A recent study on the pathogenesis of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) has revealed an elevation of inflammatory and anti-inflammatory cytokines in the sera and cerebrospinal fluids of the patients and presence of autoantibodies in subgroups of ME/CFS patients. Furthermore, investigator initiated clinical trials have proved the efficacy of anti-CD20 antibody (rituximab), that eliminate B cells, in the treatment of ME/CFS. Based on these findings, we hypothesize that immune abnormalities, such as enhanced autoimmune responses, may play an essential role in the neuroinflammatory pathogenesis of ME/CFS. PMID- 29348374 TI - [Neurologic Abnormalities in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Review]. AB - Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is an illness characterized by fatigue lasting for at least six months, post-exertional malaise, unrefreshing sleep, cognitive impairment and orthostatic intolerance. ME/CFS has been a controversial illness because it is defined exclusively by subjective complaints. However, recent studies of neuroimaging as well as analysis of blood markers, energy metabolism and mitochondrial function have revealed many objective biological abnormalities. Specifically, it is suspected that the symptoms of ME/CFS may be triggered by immune activation - either inside or outside the brain - through release of inflammatory cytokines. In this review, we summarize potentially important recent findings on ME/CFS, focusing on objective evidence. PMID- 29348375 TI - [Suspected Non-Alzheimer's Disease Pathophysiology (SNAP) and Its Pathological Backgrounds in the Diagnosis of Preclinical and Clinical Alzheimer's Disease]. AB - Suspected non-Alzheimer's disease pathophysiology (SNAP) is a biomarker-based condition that is found in individuals with normal levels of amyloid-beta protein (Abeta) markers (A-) and abnormal levels of markers of neurodegeneration or neuronal injury (N+). SNAP is found in 20-26% of cognitively normal (CN) individuals aged 65 years or older and 17-35% of individuals with mild cognitive impairment (MCI). Similarly, 7-39% of patients with clinically probable Alzheimer's disease (AD) dementia are negative for Abeta. The epsilon4 allele of the apolipoprotein E gene is underrepresented in individuals with SNAP compared with amyloid-positive (A+) groups. The progression of the cognitive impairments of individuals with SNAP was slower than that of A+N+ subjects who had a high likelihood of AD pathophysiology and faster than that of A-N- subjects. The pathological backgrounds of the individuals with SNAP were heterogeneous and included cerebrovascular disorders, mixed pathologies, and non-AD neurodegeneration, such as primary age-related tauopathy [PART, also known as senile dementia of the neurofibrillary tangle type (SD-NFT) (tangle-only dementia) at the dementia stage] and argyrophilic grain disease. Further clarification of SNAP is needed to better define the mechanisms underlying the progression of AD pathologies in older individuals. PMID- 29348376 TI - [Benign Outcome of Cochlear Implantation in a Patient with Superficial Siderosis]. AB - We report the case of a 38-year-old man with gait disorder and hearing loss. The patient had developed gait disorder due to a cervical meningioma since 4 year-old disappeared for 15 years after the surgical removal of the meningioma. However, at the age of 21 year-old, the gait disorder reappeared and worsened progressively. Sensorineural hearing loss (SNHL) and epileptic seizures developed during the disease course, and he was diagnosed with superficial siderosis (SS). When he was 37 years old, he experienced sudden-onset of right-side hearing impairment and was considered a candidate for cochlear implantation (CI) at the otorhinolaryngology clinic of the nearby University Hospital. He underwent CI in November 2014. Eight months after the operation, his right side hearing improved although ataxia, hearing loss, and pyramidal sign persisted. At the long term follow-up of 29 months after CI, his hearing remained at the improved level. Thus, CI may be an effective long-term treatment for SNHL in patients with SS and could prevent the progression of his hearing loss. (Received February 1, 2017; Accepted August 23, 2017; Published January 1, 2018). PMID- 29348377 TI - Are We Ready for National Diabetes Prevention Program? PMID- 29348378 TI - Analysis of Diabetes Mellitus Determinants in Indonesia: A Study from the Indonesian Basic Health Research 2013. AB - BACKGROUND: diabetes mellitus is a silent-killer. Its prevalence and impact on health expenses increase from year to year. This study aims to investigate the characteristics and the risk factors that affect diabetes mellitus in Indonesia. METHODS: this is a cross sectional study. Data were obtained from the Basic Health Research (RISKESDAS) in 2013. The samples were individuals aged >=15 years, whose fasting blood glucose and 2 hours blood glucose after the imposition have been measured. 38.052 individuals were selected for this study. The variables of age, sex, marital status, level of education, employment status, living area, regional status, hypertension, obesity, smoking habit, and dyslipidemia are analyzed as risk factors for diabetes mellitus. Bivariate analysis was using chi-square test with significance level of p<0.05 and confidence interval (CI) of 95%, and multivariate analysis using multiple logistic regression test. RESULTS: our study showed that 13% have diabetes mellitus in 2013. Factors affecting diabetes mellitus were age>55 years (OR=5.10; 95%CI 4.42 to 5.89; p<0.001), female (OR=1.37; 95%CI 1.26 to 1.49; p<0.001), rural (OR=1.16; 95%CI 1.08 to 1.26; p<0.001), married (OR=1.31; 95%CI 1.07 to 1.58; p<0.05), unemployed (OR=1.14; 96%CI 1.05 to 1.23; p<0.05), obesity (OR=1.46; 95%CI 1.35 to 1.58; p<0.001), hypertension (OR=1.68; 95%CI 1.55 to 1.81; p<0.001) and dyslipidemia (OR=1.53; 95%CI 1.39- 1.68; P<0.001). CONCLUSION: as many as 13% of individuals have diabetes mellitus in 2013. Age, gender, living area, employment status, obesity, hypertension, and dyslipidemia are the contributing factors to diabetes mellitus. PMID- 29348379 TI - The Differences in Serum Quantitative Specific IgE Levels Induced by Dermatophagoides pteronyssinus, Dermatophagoides farinae and Blomia tropicalis Sensitization in Intermittent and Persistent Allergic Asthma. AB - BACKGROUND: house dust mites (HDM) are an important inhalant allergen in allergic asthma. However, molecular diagnostic study of specific IgE to HDM allergens has not been done in Indonesia. In addition, the association of quantitative specific IgE measurement with asthma severity has not been investigatedd. This study aimed to investigate the difference of serum quantitative specific IgE levels induced by Dermatophagoides (D.) pteronyssinus, D. farinae and Blomia tropicalis sensitization in intermittent and persistent allergic asthma. METHODS: this was a cross-sectional study on adult allergic asthma patients who were invited for serum specific IgE testing. This study was a part of a larger study within the Division of Allergy and Immunology, Cipto Mangunkusumo Hospital. Asthma severity was defined based on Global Initiative on Asthma (GINA) 2015 criteria and were grouped as intermittent or persistent. Quantitative specific IgE testing was done on blood serum using a multiple allergosorbent test (Polycheck Allergy, Biocheck GmbH, Munster, Germany). The HDM allergens tested were D. pteronyssinus, D. farinae, and Blomia tropicalis. Difference between two groups were analyze using Mann-Whitney test. RESULTS: a total of 87 subjects were enrolled in this study; 69 (79.3%) were women. Mean patients' age was 40, 2 years. Sixty-three (72.4%) subjects had asthma and allergic rhinitis. Fifty-eight (66.7%) subjects were classified as persistent asthma. The prevalence of sensitization was 62.1% for D. farinae, 51.7% for D. pteronyssinus, and 48.3% for Blomia tropicalis. The median of specific IgE levels were significantly higher in persistent asthma compares to intermittent asthma induced by D. farinae (median 1.30 vs. 0.0 kU/L; p=0.024) and B. tropicalis (median 0.57 vs. 0.0 kU/L; p=0.015) sensitization. Level of Specific IgE D. pteronyssinus was also to be higher in persistent asthma than the level measured in intermittent asthma (0.67 vs. 0.00 kU/L; p=0.066). CONCLUSION: Sensitization of HDM allergens was shown to be highest for D. farinae 62.1%, followed by D. pteronyssinus 51.7% and Blomia tropicalis 48.3%. Specific IgE level induced by D. farinae and Blomia tropicalis sensitization were significantly higher in patients with persistent asthma compared to intermittent asthma, whereas specific IgE level induced by D. pteronyssinus sensitization was higher in persistent asthma although not statistically significant. PMID- 29348380 TI - Effect of Nigella sativa Seed Extract for Hypertension in Elderly: a Double blind, Randomized Controlled Trial. AB - BACKGROUND: Nigella sativa (NS) seed extract shows diuretic activity, inhibits sympathetic nervous system overactivity and increases the production of Nitric Oxide in in vivo studies, thus it has a potential use as an adjuvant antihypertensive for elderly population. This study aimed to determine the effect of Nigella sativa seed extract to systolic blood pressure (SBP) and diastolic blood pressure (DBP) of elderly patients with hypertension. METHODS: a double blind, randomized controlled trial was conducted on elderly subjects with hypertension in three outpatient clinics in Cipto Mangunkusumo National Hospital Jakarta Indonesia from June to September 2011. Subjects were divided into intervention group given 300 mg Nigella sativa seed extract twice daily for 28 days and into another group which was given placebo. Blood pressure were measured on day 1 and 28. Intention to treat analysis using unpaired t-test to compare blood pressure after intervention between the two groups was performed. RESULTS: of a total of 85 patients, 76 subjects fulfilled the study criteria and were randomized into 2 groups, with 38 subjects in each group. Both groups were comparable in all important prognostic factors. The mean systolic blood pressure of the NS group was decreased from 160.4 (SD 15.7) mmHg to 145.8 (SD 19.8) mmHg, and from 160.9 (16.3) mmHg to 147.53 (SD 22.0) mmHg in the placebo group (p=0.36). The mean diastolic blood pressure in the NS group was decreased from 78.3 (SD 11.9) to 74.4 (SD 8.2) mmHg, and from 79.0 (SD 12.4) to 78.2 (SD 8.9) in the placebo group (p=0.35). Reported adverse events include dyspepsia in 6 subjects (15.7%), nausea in 3 subjects (7.8%), and constipation in 2 subjects (5.2%). No electrolyte abnormalities, liver and renal toxicities, or orthostatic hypotension were observed. CONCLUSION: although a trend towards a slight decrease in blood pressure was observed, Nigella sativa has not been proven to be effective in reducing blood pressure in elderly patients with hypertension. PMID- 29348381 TI - Thyroid Dysfunction in Type 2 Diabetes Mellitus Patients. AB - BACKGROUND: thyroid dysfunction is more likely to occur in diabetes mellitus patients than general population. Until now, no study has been done to find prevalence of hypothyroidism and hyperthyroidism in Indonesian diabetics. This study aimed to find the proportion and characteristics of thyroid dysfunction in Indonesian type 2 diabetes mellitus patients. METHODS: a cross-sectional study was conducted in Endocrine and Diabetes Polyclinic, Department of Internal Medicine, Cipto Mangunkusumo Hospital from July to September 2015. This study include type 2 diabetes mellitus patients, age >= 18 year-old, willing to undergo thyroid laboratory testing. In this study, hypothyroidism defined as TSH more than 4.0 mIU/L, while hyperthyroidism is defined as TSH less than 0.4 mIU/L with eCLIA. RESULTS: from 364 subjects who were recruited from Endocrine and Diabetes Polyclinic, Cipto Mangunkusumo Hospital, 303 subjects underwent this study until analysis. Two hundred and three (273) subjects (90.1%) were euthyroid, 7 subjects (2.31%) were hyperthyroid, and 23 subjects (7.59%) were hypothyroid. Majority of the patients had subclinical hypothyroidism (56.5% based on Zulewski and Billewicz Score and 65.2% based on fT4 laboratory result), while 42.9% and 71.4% subjects had clinical hyperthyroidism based on clinical appearance and fT4 laboratory result respectively. CONCLUSION: proportion of hypothyroidism was 7.59% and hyperthyroidism was 2.31%, while the proportion of total thyroid dysfunction was 9.9% among diabetics. It is suggested that screening for thyroid dyscfunction can be done in high risk condition as a part of comprehensive management in type 2 diabetes mellitus patients. PMID- 29348382 TI - The Effect of Ophiocephalus striatus Extract on the Levels of IGF-1 and Albumin in Elderly Patients with Hypoalbuminemia. AB - BACKGROUND: a freshwater fish Ophiocephalus striatus or known locally to Indonesian as haruan,can potentially increases IGF-1 and albumin levels in elderly patients with hypoalbuminemia due to the contents of amino acids, fatty acids, vitamins, and minerals. This study was conducted to investigate the effect of Ophiocephalus striatus extract on the level of IGF-1 and albumin in elderly patients with hypoalbuminemia. METHODS: the study is a double-blind randomized controlled trial involving malnourished elderly inpatients (>=60 years old) recovering from acute condition before hospital discharge, with Mini Nutritional Assessment score <=23.5 and albumin level <3.5 g/dL. A total of 109 subjects were randomly divided into two groups: one group received 10 g Ophiocephalus striatus extract per day for 14 days and another group received placebo. Albumin and IGF-1 levels were obtained before and after intervention. RESULTS: ninety subjects completed the study (extract group=45 subjects; placebo group =45 subjects) for 14 days. The median of age were 69 (64;75) years and the male to female ratio were 2 : 3. The changes of IGF-1 and albumin levels from before to after intervention between extract group compared to placebo group were 14.7 (0.30;31.5) ng/mL vs 1.0 (-6;13.15) ng/mL (p=0.002) and 0.5 (0.15;0.70) g/dL vs 0.10 (0.0;0.50) g/dL (p=0.003), respectively. There were significant differences in the improvement of IGF-1 and albumin levels between extract and placebo group. CONCLUSION: supplementation of Ophiocephalus striatus extract was associated with a significant increase in IGF-1 and albumin levels in elderly patients with hypoalbuminemia. PMID- 29348383 TI - Improving Diagnostic of Pulmonary Tuberculosis in HIV Patients by Bronchoscopy: A Cross Sectional Study. AB - BACKGROUND: diagnostic of pulmonary TB in HIV patients is a problem due to non specific clinical features, or radiological appearance. HIV patients with CD4<=200 cells/mL infected with M. tuberculosis have less capacity in containing M. tuberculosis, developing granulomas, casseous necrosis, or cavities. This condition is caused by weakend inflammatory which later reduced sputum production and may cause false negative result. This study aimed to assess differences in the positivity level of acid fast bacilli (AFB) and cultures of M. tuberculosis from non-bronchoscopic sputum (spontaneous and induced sputum) compared to bronchoscopic sputum (bronchoalveolar lavage) in HIV positive patients suspected pulmonary tuberculosis with CD4<200 cells/MUL. METHODS: this cross sectional study was conducted in adult HIV patients treated in Hasan Sadikin Hospital with CD4<=200 cells/MUL suspected with pulmonary tuberculosis by using paired comparative analytic test. All patients expelled sputum spontaneously or with sputum induction on the first day. On the next day, bronchoalveolar lavage (BAL) was performed. The two samples obtained from two methods were examined by AFB examination with staining Ziehl Neelsen (ZN) and cultured of M. tuberculosis on solid media Ogawa on all patients. Positivity, sensitivity and increased sensitivity of AFB and culture of M. tuberculosis in the non bronchoscopic and bronchoscopic groups were compared. RESULTS: there were differences in the positivity level of AFB with ZN staining between non-bronchoscopic and bronchoscopic groups which were 7/40 (17.5%) vs 20/40 (50.0%) (p<0.001). The differences between the cultures of non-bronchoscopic and bronchoscopic groups were 16/40 (40.0%) vs 23/40 (57.5%) (p=0.039). Bronchoscopic sputum increased the positivity level of the ZN AFB examination by 32.5% (from 17.5% to 50.0%) as well as on culture examination by 17.5% (from 40.0% to 57.5%). CONCLUSION: Bronchoalveolar lavage can improve the positivity level of smears and cultures in patients suspected of pulmonary TB in HIV patients with CD4<200 cells/MUL. PMID- 29348384 TI - Clinical Outcomes of Geriatric Care in Cipto Mangunkusumo Hospital, Before and After the Implementation of National Health Insurance Program. AB - BACKGROUND: the National Health Insurance (NIH/JKN) has been enacted since January 2014. Various outcomes of geriatric patient care, such as improved functional status and quality of life have not been evaluated. Prolonged hospitalization and re-hospitalization are potentially affecting the efficiency care of this vulnarable group. This study aimed to identify the differences of functional status improvement, quality of life improvement, length of stay, and hospitalization of geriatric patients admitted to CMH between prior to and after NHI implementation. METHODS: a cohort study with historical control was conducted among geriatric patients admitted to Acute Geriatric Ward CMH Hospital on two periods of time: January-December 2013 (pre-NHI implementation) and June 2014-May 2015 (after NHI implementation). Patients who died within 24 hours of hospital admission, those with APPACHE II score >24, advance stage cancer, transfer to other wards before they were discharged or have incomplete record were excluded from the study. Data on demographical and clinical characteristics, functional status, quality of life, length of stay, and re-hospitalization were taken from patient's medical record. The differences of studied outcomes were analyzed using t-test or Mann-Whitney test. RESULTS: there were 102 subjects in pre-NHI and 135 subjects in NHI groups included in the study. Median lengths of stay were not different between two groups (12.5 days in pre-NHI and 10 days in NHI groups, p=0.087), although the proportion of patients with in-hospital stay less than 14 days was higher in NHI group. The difference of functional status of discharged patients in pre-NHI and NHI groups were 3 and 3 (p=0.149) respectively, whereas for health-related quality of life, although NHI group in the beginning showed a lower quality of life compared to the pre-NHI (0.163 [0.480] vs. 0.243 [0.550]; p=0.012). However, after incorporating comprehensive geriatric assessment (CGA) the quality of life improved significantly by the end of in-hospital care in both groups. Re-hospitalization incidence in NHI group was lower compared to pre-NHI (7 [5.2%] vs. 13 [12.7%]; p=0.038). CONCLUSION: our study shows that there was no significant difference regarding length of stay, functional status, and health-related quality of life between prior to and after national health insurance implementation on admitted geriatric patients. Rehospitalization incidence showed better results in NHI group and hence NHI implementation is favored. PMID- 29348385 TI - A Rare Case Series of Ischemic Stroke Following Russell's Viper Snake Bite in India. AB - Snakebite is an important medical problem in India. Among their various manifestations, cerebral complications are uncommonly found in literature. Moreover, Ischemic stroke following snake bite is quite rare. Here we report a case series of two such cases that developed neurological manifestations following Russell's viper bite. On computerized tomography (CT) scan of brain; cerebral infarcts were revealed. Their likely mechanisms are discussed in present study which include disseminated intravascular coagulation, toxin induced vasculitis and endothelial damage. PMID- 29348386 TI - ST Elevation in Lead aVR and Its Association with Clinical Outcomes. AB - The purpose of this case repots are to evaluate the role of ST elevation in aVR lead and to make analysis between both cases. There are some atypical electrocardiogram (ECG) presentations which need prompt management in patient with ischemic clinical manifestation such as ST elevation in aVR lead. In this case study, we report a 68-year old woman with chief symptoms of shortness of breath and chest discomfort. She was diagnosed with cardiogenic shock, with Killip class IV, and TIMI score of 8. The second case is a 57-year-old man with typical chest pain at rest which could not be relieved with nitrate treatment. He was diagnosed with ST elevation in inferior and aVR lead, and occlusion in left circumflex artery (LCX). Both patients underwent primary percutaneous coronary intervention (PPCI). Subsequently, both cases presented remarkable clinical improvements and improved ST elevation myocardial infarction (STEMI) in aVR lead. PMID- 29348387 TI - Cancer Stem Cells and Molecular Biology Test in Colorectal Cancer: Therapeutic Implications. AB - Colorectal cancer (CRC) is the third most frequent cancer in males, the second in females, and is the second leading cause of cancer related death worldwide. Within Indonesia's 250 million population, the incidence rates for CRC per 100,000 population were 15.2 for males and 10.2 for females, and estimated 63,500 cases per year. More than 50% of colorectal cancer patients will develop metastasis. CRC is still the main cause of tumor-related death, and although most CRC patients are treated with surgery to remove the tumor tissue, some of the CRC patients recurred. Chemotherapy used as adjuvant or neoadjuvant therapy also has several problems, in which these treatments are useless in tumor cells with chemo resistance. Molecular testing of CRC from tumor tissues has important implications for the selection of treatment. Biomarkers can be used as prognostic value, molecular predictive factors, and targeted therapy. Recent research reported that, cancer stem cells (CSCs) are considered as the origin of tumorigenesis, development, metastasis and recurrence. At present, it has been shown that CSCs existed in many tumors including CRC. This review aims to summarize the issue on CSCs, and the future development of drugs that target colorectal cancer stem cells. PMID- 29348388 TI - Disseminated Histoplasmosis in an Indonesian HIV-Positive Patient: A Case Diagnosed by Fine Needle Aspiration Cytology. AB - A 30-year-old Javanese-Indonesian man was admitted with complaints of 3 months persistent fever, weight loss, and fatigue. He had never known his past history of unprotected HIV until the admission. His only risk factor is unsafe sex. The patient seemed well nourished. Physical examination revealed blood pressure 100/60 mmHg, pulse 100 beats per minute, respiratory rate 20 times per minute, and temperature 38.8 degrees C. Multiple cervical and inguinal lymphadenopathies were also found. Electrocardiogram showed anterolateral ischemic finding, whereas chest X-ray were normal. Laboratory test results revealed pancytopenia with hemoglobin of 8.2 g/dL, leucocyte count 2000 cells/mm3, platelet 78000 cells/mm3, hematocrit 25.8%, AST 162 IU/L, ALT 81 IU/L, decreased albumin of 2.72 g/dL. The clinical differential diagnosis were lymphoma or tuberculosis lymphadenopathy. PMID- 29348389 TI - Efficacy of Curcumin as Adjuvant Therapy to Induce or Maintain Remission in Ulcerative Colitis Patients: an Evidence-based Clinical Review. AB - BACKGROUND: treatment guidelines for ulcerative colitis (UC) not yet established. Currently, mesalazine, corticosteroids, and immunomodulators are treatment options for UC. However, they are known to have unpleaseant side effects such as nausea, vomiting, headaches, hepatitis, and male infertility. Curcumin is found in Turmeric plants (Curcuma longa L.), which possesses both anti-inflammatory and antioxidant properties. This study aimed to determine whether curcumin as adjuvant therapy can induce or maintain remission in UC patients. METHODS: structured search in three database (Cochrane, PubMed, Proquest) using "Curcumin", "remission" and "Ulcerative Colitis" as keywords. Inclusion criteria is randomized controlled trials (RCTs), meta-analysis, or systematic review using curcumin as adjuvant therapy in adult UC patients. RESULTS: we found 49 articles. After exclusion, three RCTs were reviewed; two examined curcumin efficacy to induce remission and one for remision maintenance in UC. Curcumin was significantly more effective than placebo in all RCTs. The efficacy of curcumin could be explained by its anti-inflammatory properties, which inhibit NF-kB pathway. Regulation of oxidant/anti-oxidant balance can modify the release of cytokines. However, methods varied between RCTs. Therefore, they cannot be compared objectively. Futhermore, the sample size were small (n= 50, 45, 89) therefore the statistical power was not enough to generate representative results in all UC patients. CONCLUSION: Available evidence showed that curcumin has the potential to induce and maintain remission in UC patients with no serious side effects. However, further studies with larger sample size are needed to recommend it as adjuvant therapy of ulcerative colitis. PMID- 29348390 TI - Current and Emerging Therapy on Lupus Nephritis. AB - Lupus nephritis (LN) is involvement of the kidney in patient with systemic lupus erythematosus (SLE) and one of the most common target organ in SLE. The diagnosis of LN will significantly impact the clinical outcome and therapy of the patient. Therapy regiment of LN is divided into two stages, induction and maintenance treatment. The main objective of the induction therapy is to achieve complete or partial remission as soon as possible since it is correlated with better prognosis and fewer relapse incidence. In the maintenance stage, the main aim of the therapy is to maintain the remission status and avoid future relapse. It is also important to evaluate the effectiveness of the therapy as it will affect the duration and the regiment therapy being used. Corticosteroid, cyclophosphamide, mycophenolate mofetil, azathrioprine, cyclosporine and tacrolimus are example of drugs used in LN therapy. Currently, studies are being conducted to evaluate and develop targeted drug therapy to further add treatment options for LN. PMID- 29348391 TI - Effects of senescence and angiotensin II on expression and processing of amyloid precursor protein in human cerebral microvascular endothelial cells. AB - The present study was designed to determine the effects of senescence and angiotensin II (Ang II) on expression and processing of amyloid precursor protein (APP) in human brain microvascular endothelial cells (BMECs). Senescence caused a decrease in APP expression thereby resulting in reduced secretion of soluble APPalpha (sAPPalpha). In contrast, beta-site APP cleaving enzyme (BACE1) expression and production of amyloid beta (Abeta)40 were increased in senescent endothelium. Importantly, in senescent human BMECs, treatment with BACE1 inhibitor IV inhibited Abeta generation and increased sAPPalpha production by enhancing a disintegrin and metalloprotease (ADAM)10 expression. Furthermore, Ang II impaired expression of ADAM10 and significantly reduced generation of sAPPalpha in senescent human BMECs. This inhibitory effect of Ang II was prevented by treatment with BACE1 inhibitor IV. Our results suggest that impairment of alpha-processing and shift to amyloidogenic pathway of APP contribute to endothelial dysfunction induced by senescence. Loss of sAPPalpha in senescent cells treated with Ang II exacerbates detrimental effects of senescence on APP processing. Notably, inhibition of BACE1 has beneficial effects on senescence induced endothelial dysfunction. Reported findings may help to explain contributions of senescent cerebral microvascular endothelium to development of cerebral amyloid angiopathy and Alzheimer's disease (AD) pathology. PMID- 29348392 TI - Rapamycin prevents the intervertebral disc degeneration via inhibiting differentiation and senescence of annulus fibrosus cells. AB - The effects of bleomycin and rapamycin on cellular senescence and differentiation of rabbit annulus fibrosus stem cells (AFSCs) were investigated using a cell culture model. The results showed that bleomycin induced cellular senescence in AFSCs as evidenced by senescence-associated secretory phenotype. The morphology of AFSCs was changed from cobblestone-like cells to pancake-like cells. The senescence-associated beta-galactosidase activity, the protein expression of P16 and P21, and inflammatory-related marker gene levels IL-1beta, IL-6, and TNF alpha were increased in bleomycin-treated AFSCs in a dose-dependent manner. Rapamycin treatment decreased the gene expression of MMP-3, MMP-13, IL-1beta, IL 6, TNF-alpha, and protein levels of P16 and P21 in bleomycin-treated AFSCs. Furthermore, neither bleomycin nor rapamycin changed the ribosomal S6 protein level in AFSCs. However, the phosphorylation of the ribosomal S6 protein was increased in bleomycin-treated AFSCs and decreased in rapamycin-treated AFSCs. AFSCs differentiated into adipocytes, osteocytes, and chondrocytes when they were cultured with respective differentiation media. Rapamycin inhibited multi differentiation potential of AFSCs in a concentration-dependent manner. Our findings demonstrated that mammalian target of rapamycin (mTOR) signaling affects cellular senescence, catabolic and inflammatory responses, and multi differentiation potential, suggesting that potential treatment value of rapamycin for disc degenerative diseases, especially lower back pain. PMID- 29348393 TI - Epigenetics: the panacea for cognitive decline? PMID- 29348394 TI - HOXC6 predicts invasion and poor survival in hepatocellular carcinoma by driving epithelial-mesenchymal transition. AB - Aberrant expression of HOXC6 has been reported in several malignant tumors, yet little is known about the value of HOXC6 in invasion and prognosis of hepatocellular carcinoma (HCC). HOXC6 expression was positively correlated with high AFP level, liver cirrhosis, larger tumor, vascular invasion and BCLC stage. Kaplan-Meier analysis revealed that HOXC6 was an independent predictor for overall survival (OS) and time to recurrence (TTR). In addition, HOXC6 status could act as prognostic predictor in different risk subgroups. Moreover, HOXC6 maintained its prognostic value in different ability of invasiveness. Furthermore, combination of HOXC6 and serum AFP could be a potential predictor for survival in HCC patients. Additionally, further study showed that HOXC6 may promote invasion of HCC by driving epithelial-mesenchymal transition (EMT). Knockdown of HOXC6 significantly decreased the migration and invasion of HCC cells and changed the expression pattern of EMT markers. An opposite expression pattern of EMT markers was observed in HOXC6-transfected cells. In addition, immunohistochemistry and RT-PCR results further confirmed this correlation. In conclusion, HOXC6 contributes to invasion by inducing EMT pathway and predicts poor prognosis of HCC. HOXC6/AFP expression may help to distinguish the different risks of HCC patients after hepatectomy. PMID- 29348395 TI - NKILA inhibits NF-kappaB signaling and suppresses tumor metastasis. AB - The long non-coding RNA (lncRNA) NKILA (nuclear transcription factor NF-kappaB interacting lncRNA) functions as a suppressor in human breast cancer and tongue cancer. However, the clinical significance and biological roles of NKILA in esophageal squamous cell carcinoma (ESCC) remain unknown. In this study, we showed that NKILA was downregulated in ESCC tissues and cancer cells compared with their normal counterparts. Low NKILA expression correlated with large tumor size and advanced TNM stage, and predicted poor overall and disease-free survival of ESCC patients. Further loss- and gain-of-function assays indicated that NKILA inhibited proliferation and migration of ESCC cells in vitro, suppressed tumor growth and lung metastasis in vivo. Mechanistically, NKILA could inhibit phosphorylation of IkappaBalpha, suppress p65 nuclear translocation and downregulate the expression of NF-kappaB target genes in ESCC cells. These results suggest NKILA could suppress malignant development of ESCC via abrogation of the NF-kappaB signaling and may potentially serve as a prognostic marker for ESCC. PMID- 29348396 TI - A Case of Umbilical Artery Thrombosis in the Third Trimester of Pregnancy. AB - BACKGROUND Umbilical artery thrombosis is an extremely rare complication during pregnancy. Umbilical artery thrombosis has a poor prognosis and is associated with increased rates of perinatal morbidity, including intrauterine growth restriction (IUGR), and fetal mortality. CASE REPORT We report a rare case of umbilical artery thrombosis, diagnosed by ultrasound, at 33 weeks gestation in a 30-year-old woman who had previously had an uneventful pregnancy. CONCLUSIONS Umbilical artery thrombosis is a rare complication of pregnancy that is associated with high fetal mortality. Management may include planned elective delivery by cesarean section, following antenatal corticosteroid therapy for fetal lung maturation. PMID- 29348397 TI - Placement of an Aortohepatic Conduit as an Alternative to Standard Arterial Anastomosis in Liver Transplantation. AB - BACKGROUND The aim of this study was to assess the impact of placement of an aortohepatic conduit on graft and patient survival after liver transplantation (LT) in selected patients with an inadequate recipient hepatic artery (HA) for a standard arterial anastomosis. MATERIAL AND METHODS Of 331 patients who underwent deceased donor LT, 25 (7.6%) who received placement of an aortohepatic conduit at the time of transplantation were included. Clinical characteristics and outcomes, including postoperative complications, conduit patency, and graft and patient survival rates, were analyzed. RESULTS All 25 patients included in this study presented a high preoperative Model for End-stage Liver Disease score (25.4+/ 8.6; range, 6-42) and high rates of retransplantation (n=11, 44%) or previous abdominal - pelvic surgery (n=5, 20%). The observed postoperative vascular complications were portal vein thrombosis in 3 cases (12%) and anastomosis-site bleeding of the aortohepatic conduit in 1 case (4%); there was no HA thrombosis or stenosis in our analysis. With a median follow-up of 37 months (range, 0-69 months), all aortohepatic conduits were patent, and the graft and patient survival rates were 84% and 68%, respectively. The causes of death were graft failure (n=4), pneumonia (n=3), and cerebrovascular accidents (n=1). CONCLUSIONS Our results indicate that placement of an aortohepatic conduit is a feasible alternative to a standard arterial anastomosis in selected patients whose HA and surrounding potential inflow arteries are not suitable for standard arterial anastomosis. PMID- 29348398 TI - Association Study of Polymorphisms in Genes Relevant to Vitamin B12 and Folate Metabolism with Childhood Autism Spectrum Disorder in a Han Chinese Population. AB - BACKGROUND Both genetic and environmental factors play a role in the development of autism spectrum disorder (ASD). This case-control study examined the association between childhood ASD and single-nucleotide polymorphisms (SNPs) in genes involved with vitamin B12 and folate metabolism. MATERIAL AND METHODS Genotypes of transcobalamin 2 (TCN2) rs1801198, methionine synthase (MTR) rs1805087, methionine synthase reductase (MTRR) rs1801394, and methylene tetrahydrofolate reductase (MTHFR) rs1801133 were examined in 201 children with ASD and 200 healthy controls from the Han Chinese population. RESULTS Our results showed no association of all examined SNPs with childhood ASD and its severity. CONCLUSIONS None of the examined SNPs were a risk factor for the susceptibility to childhood ASD and severity of the disease in a Han Chinese population. PMID- 29348399 TI - Insulin-like growth factor 2 is a key mitogen driving liver repopulation in mice. AB - Hepatocyte transplantation holds great promise as an alternative to orthotopic organ transplantation in the treatment of liver diseases. However, obtaining clinically meaningful levels of liver repopulation has not been achieved because the mechanisms regulating hepatocyte proliferation in recipient livers have not yet been well characterized. In the mouse model of Hereditary Tyrosinemia Type I, the fumarylacetoacetate hydrolase-deficient (Fah-/-) mouse, we found gradually increasing expression level of insulin-like growth factor 2 (IGF2) in the hepatocytes of host livers. Similarly, high levels of IGF2 were found in the livers of patients with deficient FAH activity. Recombinant IGF2 directly promotes proliferation of primary hepatocytes in vitro. Inhibition on IGF2 expression through the interruption of PI3K/Akt and MAPK pathways significantly reduced the level of liver repopulation in Fah-/- mice. Interestingly, treatment with IGF2 before hepatocyte transplantation generally improved the amount of liver repopulation seen in various mice models of liver injury. Altogether, these findings underscore the underlying mechanisms of therapeutic liver repopulation in Fah-/- mice, and indicate that IGF2 is a potential hepatocyte mitogen for liver cell transplantation therapies. PMID- 29348400 TI - Monoglyceride lipase gene knockout in mice leads to increased incidence of lung adenocarcinoma. AB - Monoglyceride lipase (MGL) is a recently discovered cancer-related protein. The role of MGL in tumorigenesis remains to be fully elucidated. We have previously shown that MGL expression was reduced or absent in multiple human malignancies, and overexpression of MGL inhibited cancer cell growth. Here, we have generated the MGL knockout mice to further investigate the role of MGL in tumorigenesis in vivo. Our results indicate that MGL-deficient (MGL+/-, MGL-/-) mice exhibited a higher incidence of neoplasia in multiple organs, including the lung, spleen, liver and lymphoid tissues. Interestingly, lung neoplasms were the most common neoplastic changes in the MGL-deficient mice. Importantly, MGL-deficient animals developed premalignant high-grade dysplasia and adenocarcinomas in their lungs. Investigation of the MGL expression status in lung cancer specimens from patients also revealed that MGL expression was significantly reduced in the majority of primary human lung cancers when compared to corresponding matched normal tissues. Furthermore, mouse embryonic fibroblasts (MEFs) from MGL-deficient animals showed characteristics of cellular transformation including increased cell proliferation, foci formation and anchorage-independent growth. Our results also indicate that MGL deficiency was associated with activation of EGFR and ERK. In addition, pro-inflammatory molecules COX-2 and TNF-alpha were also activated in the MGL-deficient lung tissues. Thus, our results provide new insights into the novel role of MGL as an important negative regulator of EGFR, COX-2 and TNF alpha. Accordingly, EGFR and COX-2/TNF-alpha activation/induction is expected to play important roles in MGL deficiency-driven lung tumors. Collectively, our results implicate the tumor suppressive role of MGL in preventing tumor development in vivo, particularly in context to the lung cancer, and highlight its role as a potential tumor suppressor. PMID- 29348401 TI - Three-dimensional bicontinuous nanoporous materials by vapor phase dealloying. AB - Three-dimensional bicontinuous open (3DBO) nanoporosity has been recognized as an important nanoarchitecture for catalysis, sensing, and energy storage. Dealloying, i.e., selectively removing a component from an alloy, is an efficient way to fabricate nanoporous materials. However, current electrochemical and liquid-metal dealloying methods can only be applied to a limited number of alloys and usually require an etching process with chemical waste. Here, we report a green and universal approach, vapor-phase dealloying, to fabricate nanoporous materials by utilizing the vapor pressure difference between constituent elements in an alloy to selectively remove a component with a high partial vapor pressure for 3DBO nanoporosity. We demonstrate that extensive elements, regardless of chemical activity, can be fabricated as nanoporous materials with tunable pore sizes. Importantly, the evaporated components can be fully recovered. This environmentally friendly dealloying method paves a way to fabricate 3DBO nanoporous materials for a wide range of structural and functional applications. PMID- 29348402 TI - Self-generated surface magnetic fields inhibit laser-driven sheath acceleration of high-energy protons. AB - High-intensity lasers interacting with solid foils produce copious numbers of relativistic electrons, which in turn create strong sheath electric fields around the target. The proton beams accelerated in such fields have remarkable properties, enabling ultrafast radiography of plasma phenomena or isochoric heating of dense materials. In view of longer-term multidisciplinary purposes (e.g., spallation neutron sources or cancer therapy), the current challenge is to achieve proton energies well in excess of 100 MeV, which is commonly thought to be possible by raising the on-target laser intensity. Here we present experimental and numerical results demonstrating that magnetostatic fields self generated on the target surface may pose a fundamental limit to sheath-driven ion acceleration for high enough laser intensities. Those fields can be strong enough (~105 T at laser intensities ~1021 W cm-2) to magnetize the sheath electrons and deflect protons off the accelerating region, hence degrading the maximum energy the latter can acquire. PMID- 29348403 TI - Ice volume and climate changes from a 6000 year sea-level record in French Polynesia. AB - Mid- to late-Holocene sea-level records from low-latitude regions serve as an important baseline of natural variability in sea level and global ice volume prior to the Anthropocene. Here, we reconstruct a high-resolution sea-level curve encompassing the last 6000 years based on a comprehensive study of coral microatolls, which are sensitive low-tide recorders. Our curve is based on microatolls from several islands in a single region and comprises a total of 82 sea-level index points. Assuming thermosteric contributions are negligible on millennial time scales, our results constrain global ice melting to be 1.5-2.5 m (sea-level equivalent) since ~5500 years before present. The reconstructed curve includes isolated rapid events of several decimetres within a few centuries, one of which is most likely related to loss from the Antarctic ice sheet mass around 5000 years before present. In contrast, the occurrence of large and flat microatolls indicates periods of significant sea-level stability lasting up to ~300 years. PMID- 29348405 TI - Directional sound beam emission from a configurable compact multi-source system. AB - We propose to achieve efficient emission of highly directional sound beams from multiple monopole sources embedded in a subwavelength enclosure. Without the enclosure, the emitted sound fields have an indistinguishable or omnidirectional radiation directivity in far fields. The strong directivity formed in the presence of the enclosure is attributed to interference of sources under degenerate Mie resonances in the enclosure of anisotropic property. Our numerical simulations of sound emission from the sources demonstrate the radiation of a highly directed sound beam of unidirectional or bidirectional patterns, depending on how the sources are configured inside the enclosure. Our scheme, if achieved, can solve the challenging problem of poor directivity of a subwavelength sound system, and can guide beam forming and collimation by miniaturized devices. PMID- 29348404 TI - Crystal structure of an assembly intermediate of respiratory Complex II. AB - Flavin is covalently attached to the protein scaffold in ~10% of flavoenzymes. However, the mechanism of covalent modification is unclear, due in part to challenges in stabilizing assembly intermediates. Here, we capture the structure of an assembly intermediate of the Escherichia coli Complex II (quinol:fumarate reductase (FrdABCD)). The structure contains the E. coli FrdA subunit bound to covalent FAD and crosslinked with its assembly factor, SdhE. The structure contains two global conformational changes as compared to prior structures of the mature protein: the rotation of a domain within the FrdA subunit, and the destabilization of two large loops of the FrdA subunit, which may create a tunnel to the active site. We infer a mechanism for covalent flavinylation. As supported by spectroscopic and kinetic analyses, we suggest that SdhE shifts the conformational equilibrium of the FrdA active site to disfavor succinate/fumarate interconversion and enhance covalent flavinylation. PMID- 29348406 TI - Active State Organization of Spontaneous Behavioral Patterns. AB - We report the development and validation of a principled analytical approach to reveal the manner in which diverse mouse home cage behaviors are organized. We define and automate detection of two mutually-exclusive low-dimensional spatiotemporal units of behavior: "Active" and "Inactive" States. Analyses of these features using a large multimodal 16-strain behavioral dataset provide a series of novel insights into how feeding, drinking, and movement behaviors are coordinately expressed in Mus Musculus. Moreover, we find that patterns of Active State expression are exquisitely sensitive to strain, and classical supervised machine learning incorporating these features provides 99% cross-validated accuracy in genotyping animals using behavioral data alone. Altogether, these findings advance understanding of the organization of spontaneous behavior and provide a high-throughput phenotyping strategy with wide applicability to behavioral neuroscience and animal models of disease. PMID- 29348407 TI - Error-related cardiac response as information for visibility judgements. AB - Interoception provides information about the saliency of external or internal sensory events and thus may inform perceptual decision-making. Error in performance is an example of a motivationally significant internal event that evokes autonomic nervous system response resembling the orienting response: heart rate deceleration, increased skin conductance response, and pupil dilation. Here, we investigate whether error-related cardiac activity may serve as a source of information when making metacognitive judgments in an orientation discrimination backward masking task. In the first experiment, we found that the heart accelerates less after an incorrect stimuli discrimination than after a correct one. Moreover, this difference becomes more pronounced with increasing subjective visibility of the stimuli. In the second experiment, this accuracy-dependent pattern of cardiac activity was found only when participants listened to their own heartbeats, but not someone else's. We propose that decision accuracy coded in cardiac activity may be fed as a cue to subjective visibility judgments. PMID- 29348408 TI - NIPBL+/- haploinsufficiency reveals a constellation of transcriptome disruptions in the pluripotent and cardiac states. AB - Cornelia de Lange syndrome (CdLS) is a complex disorder with multiple structural and developmental defects caused by mutations in structural and regulatory proteins involved in the cohesin complex. NIPBL, a cohesin regulatory protein, has been identified as a critical protein responsible for the orchestration of transcriptomic regulatory networks necessary for embryonic development. Mutations in NIPBL are responsible for the majority of cases of CdLS. Through RNA sequencing of human induced pluripotent stem cells and in vitro-derived cardiomyocytes, we identified hundreds of mRNAs, pseudogenes, and non-coding RNAs with altered expression in NIPBL+/- patient-derived cells. We demonstrate that NIPBL haploinsufficiency leads to upregulation of gene sets identified in functions related to nucleosome, chromatin assembly, RNA modification and downregulation of Wnt signaling, cholesterol biosynthesis and vesicular transport in iPSC and cardiomyocytes. Mutations in NIPBL result in the dysregulation of many genes responsible for normal heart development likely resulting in the variety of structural cardiac defects observed in the CdLS population. PMID- 29348409 TI - Artificial selection for improved energy efficiency is reaching its limits in broiler chickens. AB - Modern broiler chickens are a major animal husbandry success story, both in terms of efficient resource utilisation and environmental sustainability. However, continuing artificial selection for both efficiency and rapid growth will be subject to both biological limits and animal welfare concerns. Using a novel analytical energy flow modelling approach, we predict how far such selection can go, given the biological limits of bird energy intake and partitioning of energy. We find that the biological potential for further improvements in efficiency, and hence environmental impact reduction, is minimal relative to past progress already made via artificial selection. An alternative breeding strategy to produce slower-growing birds to meet new welfare standards increases environmental burdens, compared to current birds. This unique analytic approach provides biologically sound guidelines for strategic planning of sustainable broiler production. PMID- 29348410 TI - Oxidative stress via inhibition of the mitochondrial electron transport and Nrf-2 mediated anti-oxidative response regulate the cytotoxic activity of plumbagin. AB - Plumbagin, an anti-cancer agent, is toxic to cells of multiple species. We investigated if plumbagin targets conserved biochemical processes. Plumbagin induced DNA damage and apoptosis in cells of diverse mutational background with comparable potency. A 3-5 fold increase in intracellular oxygen radicals occurred in response to plumbagin. Neutralization of the reactive oxygen species by N acetylcysteine blocked apoptosis, indicating a central role for oxidative stress in plumbagin-mediated cell death. Plumbagin docks in the ubiquinone binding sites (Q0 and Qi) of mitochondrial complexes I-III, the major sites for oxygen radicals. Plumbagin decreased oxygen consumption rate, ATP production and optical redox ratio (NAD(P)H/FAD) indicating interference with electron transport downstream of mitochondrial Complex II. Oxidative stress induced by plumbagin triggered an anti-oxidative response via activation of Nrf2. Plumbagin and the Nrf2 inhibitor, brusatol, synergized to inhibit cell proliferation. These data indicate that while inhibition of electron transport is the conserved mechanism responsible for plumbagin's chemotoxicity, activation of Nrf2 is the resulting anti-oxidative response that allows plumbagin to serve as a chemopreventive agent. This study provides the basis for designing potent and selective plumbagin analogs that can be coupled with suitable Nrf2 inhibitors for chemotherapy or administered as single agents to induce Nrf2-mediated chemoprevention. PMID- 29348411 TI - In vivo Microscopic Photoacoustic Spectroscopy for Non-Invasive Glucose Monitoring Invulnerable to Skin Secretion Products. AB - Photoacoustic spectroscopy has been shown to be a promising tool for non-invasive blood glucose monitoring. However, the repeatability of such a method is susceptible to changes in skin condition, which is dependent on hand washing and drying due to the high absorption of infrared excitation light to the skin secretion products or water. In this paper, we present a method to meet the challenges of mid-infrared photoacoustic spectroscopy for non-invasive glucose monitoring. By obtaining the microscopic spatial information of skin during the spectroscopy measurement, the skin region where the infrared spectra is insensitive to skin condition can be locally selected, which enables reliable prediction of the blood glucose level from the photoacoustic spectroscopy signals. Our raster-scan imaging showed that the skin condition for in vivo spectroscopic glucose monitoring had significant inhomogeneities and large variability in the probing area where the signal was acquired. However, the selective localization of the probing led to a reduction in the effects of variability due to the skin secretion product. Looking forward, this technology has broader applications not only in continuous glucose monitoring for diabetic patient care, but in forensic science, the diagnosis of malfunctioning sweat pores, and the discrimination of tumors extracted via biopsy. PMID- 29348412 TI - Influence of autophagy on acute kidney injury in a murine cecal ligation and puncture sepsis model. AB - The role of autophagy in the maintenance of renal homeostasis during sepsis is not well understood. We therefore aimed to determine the influence of autophagy on kidney during sepsis using a murine sepsis model, i.e. cecal ligation and puncture (CLP). In CLP treated animals, the number of autolysosomes observed by electron microscopy increased over time. The number of autophagosomes in CLP animals decreased relative sham operated controls at 24 hrs after CLP, indicating that autophagy flux is already diminishing by that time. Moreover, CLP induced an increase in LC3-II/LC3-I ratio at 6-8 hrs, demonstrated in western blots, as well as an increase in GFP-LC3 dots at 6-8 hrs and 24 hrs, using immunofluorescence and anti-LC3 and LAMP1 antibodies on tissue sections from GFP-LC3 transgenic mice. LC3-II/LC3-I ratio and the number of co-localized GFP-LC3 dots and LAMP1 signals (GFP LC3 + LAMP1 dots) in CLP mice at 24 hrs were significantly reduced compared with data obtained at 6-8 hrs. Notably, acceleration of autophagy by rapamycin resulted in improvement of renal function that was associated with improvement in the histologic severity of tubular epithelial injury in CLP treated animals. Autophagy in the kidney was significantly slowed in the kidney during the acute phase of sepsis; nonetheless, autophagy in kidney appears to play a protective role against sepsis. PMID- 29348413 TI - Synthesis of Luminescent Carbon Dots with Ultrahigh Quantum Yield and Inherent Folate Receptor-Positive Cancer Cell Targetability. AB - Carbon dots (CDs) have a wide range of applications in chemical, physical and biomedical research fields. We are particularly interested in the use of CDs as fluorescence nanomaterials for targeted tumor cell imaging. One of the important aspects of success is to enhance the fluorescence quantum yields (QY) of CDs as well as increase their targetability to tumor cells. However, most of the reported CDs are limited by relative low QY. In the current study, for the first time, one-step synthesis of highly luminescent CDs by using folic acid (FA) as single precursor was obtained in natural water through hydrothermal method. The as-prepared CDs exhibited QY as high as 94.5% in water, which is even higher than most of organic fluorescent dyes. The obtained CDs showed excellent photoluminescent activity, high photostability and favorable biocompatibility. The FA residuals in CDs led to extraordinary targetability to cancer cells and promoted folate receptor-mediated cellular uptake successfully, which holds a great potential in biological and bioimaging studies. PMID- 29348414 TI - MicroRNA-146a-5p attenuates irradiation-induced and LPS-induced hepatic stellate cell activation and hepatocyte apoptosis through inhibition of TLR4 pathway. AB - Elevated toll-like receptor 4 (TLR4) expression is associated with a high risk of radiation-induced liver disease (RILD). MicroRNA (miR)-146a-5p is a key regulator of lipopolysaccharide (LPS)/TLR4 signaling, but its role in modulation of RILD remains unclear. Here, we found that irradiation and LPS stimulation induced TLR4 and miR-146a-5p expression in the human hepatic stellate cell (HSC) line LX2. Ectopic expression of miR-146a-5p in LX2 inhibited irradiation-induced and LPS induced pro-inflammatory cytokine secretion and cell proliferation, and promoted cell apoptosis by down-regulating the expression levels of TLR4, interleukin-1 receptor associated kinase 1 (IRAK1), tumor necrosis factor receptor associated factor 6 (TRAF6) and phosphorylation of nuclear factor-kappa B. In addition, the culture medium from the irradiated and LPS-stimulated HSCs transfected with miR 146a-5p significantly attenuated apoptosis in irradiated hepatocytes. Overexpression of miR-146a-5p reduced alpha-smooth muscle actin production in irradiated and LPS-stimulated LX2 cells, which was associated with inhibition of TRAF6-mediated JNK and Smad2 phosphorylation. Knockdown of TRAF6 or IRAK1 mimicked the effects of miR-146a-5p on HSC function. Furthermore, miR-146a-5p treatment alleviated irradiation-induced and endotoxin-induced hepatic inflammatory response and fibrogenesis in mice through inhibition of the TLR4 signaling pathway. Collectively, this study reveals the anti-pro-inflammatory and anti-fibrotic effects of miR-146a-5p on liver injury, and suggests a potential application of miR-146a-5p in the therapeutic prevention of RILD. PMID- 29348415 TI - Trends in Fetal Growth Between 2000 to 2014 in Singleton Live Births from Israel. AB - Trends in birthweight and abnormal fetal growth, namely term low birthweight (LBW), macrosomia, small-for-gestational age (SGA) and large-for-gestational age (LGA), are important indicators of changes in the health of populations. We performed this epidemiological study to evaluate these trends among 2,039,415 singleton live births from Israel over a period of 15 years. Birth certificate data was obtained from the Ministry of Health. Multivariable linear and logistic regression models were used to evaluate crude and adjusted estimates compared to the baseline of 2000 and polynomial trends. During the study period we observed a significant decrease in the rates of infants born SGA and LGA (10.7% to 9.2%, 10.2% to 9.6% respectively). After adjustment, based on the imputed data set, term mean birthweight increased by 6.0 grams (95% CI: 2.9, 9.1), and term LBW odds decreased by 19% in 2014 compared to 2000 (adj ORs: 0.81; 95% CI: 0.77, 0.85). Significant decreases were also observed for adjusted SGA, LGA and macrosomia rates. The decrease in abnormal fetal growth rates were not entirely explained by changes in sociodemographic characteristics or gestational age and may imply real improvement in child intrauterine growth in Israel during the last 15 years, especially in the Jewish population. PMID- 29348416 TI - Magneto Acoustic Spin Hall Oscillators. AB - This paper introduces a novel oscillator that combines the tunability of spin Hall-driven nano oscillators with the high quality factor (Q) of high overtone bulk acoustic wave resonators (HBAR), integrating both reference and tunable oscillators on the same chip with CMOS. In such magneto acoustic spin Hall (MASH) oscillators, voltage oscillations across the magnetic tunnel junction (MTJ) that arise from a spin-orbit torque (SOT) are shaped by the transmission response of the HBAR that acts as a multiple peak-bandpass filter and a delay element due to its large time constant, providing delayed feedback. The filtered voltage oscillations can be fed back to the MTJ via (a) strain, (b) current, or (c) magnetic field. We develop a SPICE-based circuit model by combining experimentally benchmarked models including the stochastic Landau-Lifshitz Gilbert (sLLG) equation for magnetization dynamics and the Butterworth Van Dyke (BVD) circuit for the HBAR. Using the self-consistent model, we project up to ~50X enhancement in the oscillator linewidth with Q reaching up to 52825 at 3 GHz, while preserving the tunability by locking the STNO to the nearest high Q peak of the HBAR. We expect that our results will inspire MEMS-based solutions to spintronic devices by combining attractive features of both fields for a variety of applications. PMID- 29348417 TI - Identification of a membrane-less compartment regulating invadosome function and motility. AB - Depletion of liprin-alpha1, ERC1 or LL5 scaffolds inhibits extracellular matrix degradation by invasive cells. These proteins co-accumulate near invadosomes in NIH-Src cells, identifying a novel invadosome-associated compartment distinct from the core and adhesion ring of invadosomes. Depletion of either protein perturbs the organization of invadosomes without influencing the recruitment of MT1-MMP metalloprotease. Liprin-alpha1 is not required for de novo formation of invadosomes after their disassembly by microtubules and Src inhibitors, while its depletion inhibits invadosome motility, thus affecting matrix degradation. Fluorescence recovery after photobleaching shows that the invadosome-associated compartment is dynamic, while correlative light immunoelectron microscopy identifies bona fide membrane-free invadosome-associated regions enriched in liprin-alpha1, which is virtually excluded from the invadosome core. The results indicate that liprin-alpha1, LL5 and ERC1 define a novel dynamic membrane-less compartment that regulates matrix degradation by affecting invadosome motility. PMID- 29348418 TI - A Novel Modeling in Mathematical Biology for Classification of Signal Peptides. AB - The molecular structure of macromolecules in living cells is ambiguous unless we classify them in a scientific manner. Signal peptides are of vital importance in determining the behavior of newly formed proteins towards their destined path in cellular and extracellular location in both eukaryotes and prokaryotes. In the present research work, a novel method is offered to foreknow the behavior of signal peptides and determine their cleavage site. The proposed model employs neural networks using isolated sets of prokaryote and eukaryote primary sequences. Protein sequences are classified as secretory or non-secretory in order to investigate secretory proteins and their signal peptides. In comparison with the previous prediction tools, the proposed algorithm is more rigorous, well organized, significantly appropriate and highly accurate for the examination of signal peptides even in extensive collection of protein sequences. PMID- 29348419 TI - Dysbindin links presynaptic proteasome function to homeostatic recruitment of low release probability vesicles. AB - Here we explore the relationship between presynaptic homeostatic plasticity and proteasome function at the Drosophila neuromuscular junction. First, we demonstrate that the induction of homeostatic plasticity is blocked after presynaptic proteasome perturbation. Proteasome inhibition potentiates release under baseline conditions but not during homeostatic plasticity, suggesting that proteasomal degradation and homeostatic plasticity modulate a common pool of vesicles. The vesicles that are regulated by proteasome function and recruited during homeostatic plasticity are highly EGTA sensitive, implying looser Ca2+ influx-release coupling. Similar to homeostatic plasticity, proteasome perturbation enhances presynaptic Ca2+ influx, readily-releasable vesicle pool size, and does not potentiate release after loss of specific homeostatic plasticity genes, including the schizophrenia-susceptibility gene dysbindin. Finally, we provide genetic evidence that Dysbindin levels regulate the access to EGTA-sensitive vesicles. Together, our data suggest that presynaptic protein degradation opposes the release of low-release probability vesicles that are potentiated during homeostatic plasticity and whose access is controlled by dysbindin. PMID- 29348420 TI - Gender-related differences in heart failure with preserved ejection fraction. AB - Heart failure with preserved ejection fraction (HFpEF) affects more women than men, suggesting gender to play a major role in disease evolution. However, studies investigating gender differences in HFpEF are limited. In the present study we aimed to describe gender differences in a well-characterized HFpEF cohort. Consecutive HFpEF patients underwent invasive hemodynamic assessment, cardiac magnetic resonance imaging and exercise testing. Study endpoints were: cardiac death, a combined endpoint of HF hospitalization or cardiac death and all cause death. 260 HFpEF patients were prospectively enrolled. Men were more compromised with regard to exercise capacity and had significantly more co morbidities. Men had more pronounced pulmonary vascular disease with higher diastolic pressure gradients and a lower right ventricular EF. During follow-up, 9.2% experienced cardiac death, 33.5% the combined endpoint and 17.3% all-cause death. Male gender was independently associated with cardiac death, but neither with the combined endpoint nor with all-cause mortality. We detected clear gender differences in HFpEF patients. Cardiac death was more common among men, but not all-cause death. While men are more prone to develop a right heart phenotype and die from HFpEF, women are more likely to die with HFpEF. PMID- 29348421 TI - Patients over 40 years old with precursor T-cell lymphoblastic lymphoma have different prognostic factors comparing to the youngers. AB - This study aimed to analyze the clinical characteristics and prognostic factors of patients, divided into over 40-year-old group or not, with precursor T-cell lymphoblastic lymphoma (Pre-T-LBL). Based on the retrospective analysis of the clinical data of 59 patients with Pre-T-LBL during the period from December 2010 to December 2015, albumin level, anemia, pleural or pericardial effusion, protocol, therapy response, mediastinal mass, lactate dehydrogenase (LDH), and international prognostic index (IPI) or age-adjusted international prognostic index (aaIPI) were summarized. For patients aged <40 years, factors correlating with poor progression-free survival (PFS) were pleural or pericardial effusion, regimen, albumin level and therapy response. Pleural or pericardial effusion, aaIPI score, regimen, LDH increased, albumin level, therapy response and mediastinal mass were all related with poor overall survival (OS). In the patients aged >=40 years, only anemia associated with PFS. However, anemia, involvement of bone marrow and therapeutic response were all related with poor OS. In conclusion, the patients with Pre-T-LBL are characterized by a low incidence and bad prognosis. Different prognostic factors can be discovered for patients over 40-year-old with Pre-T-LBL comparing to the youngers. New prognostic evaluation factors should be explored for patients >=40 years old. PMID- 29348422 TI - Individuals with depressive tendencies experience difficulty in forgetting negative material: two mechanisms revealed by ERP data in the directed forgetting paradigm. AB - Although previous studies have shown that individuals with depressive tendencies have deficits in forgetting negative material, the detailed underlying neural mechanisms have not been elucidated. This study examined the intentional forgetting of negative and neutral material in individuals with depressive tendencies in two phases. In the study phase, the participants performed a directed forgetting task, where a total of 320 words were presented to them, each followed by an instructive cue to forget or remember the previously presented word. Subsequently, in the memory recognition test phase, the participants completed the "old or new discrimination task". The results indicated that individuals with depressive tendencies had difficulties suppressing the memory encoding of negative words, while the suppression of memory encoding of neutral words was relatively intact. Moreover, individuals with depressive tendencies displayed enhanced word-evoked P2 and late positive potential for negative items, as well as enhanced cue-evoked P1 and N2 for the negative items that were required to be forgotten, as compared to individuals without depressive tendencies. Based on these results, we propose two mechanisms that may contribute to the failure of forgetting negative material in mild depression: (1) inefficient memory suppression and early selective attention, and (2) excessive preliminary processing. PMID- 29348423 TI - A tissue-mimetic nano-fibrillar hybrid injectable hydrogel for potential soft tissue engineering applications. AB - While collagen type I (Col-I) is commonly used as a structural component of biomaterials, collagen type III (Col-III), another fibril forming collagen ubiquitous in many soft tissues, has not previously been used. In the present study, the novel concept of an injectable hydrogel with semi-interpenetrating polymeric networks of heterotypic collagen fibrils, with tissue-specific Col-III to Col-I ratios, in a glycol-chitosan matrix was investigated. Col-III was introduced as a component of the novel hydrogel, inspired by its co-presence with Col-I in many soft tissues, its influence on the Col-I fibrillogenesis in terms of diameter and mechanics, and its established role in regulating scar formation. The hydrogel has a nano-fibrillar porous structure, and is mechanically stable under continuous dynamic stimulation. It was found to provide a longer half-life of about 35 days than similar hyaluronic acid-based hydrogels, and to support cell implantation in terms of viability, metabolic activity, adhesion and migration. The specific case of pure Col-III fibrils in a glycol-chitosan matrix was investigated. The proposed hydrogels meet many essential requirements for soft tissue engineering applications, particularly for mechanically challenged tissues such as vocal folds and heart valves. PMID- 29348424 TI - Intraocular inflammatory cytokines in patients with neovascular age-related macular degeneration before and after initiation of intravitreal injection of anti-VEGF inhibitor. AB - Age-related macular degeneration (AMD) is a cause of blindness in people older than 50 years. Accumulating evidence indicates the involvement of systemic and local inflammation in the pathogenesis and progression of AMD. Aflibercept is an anti-vascular endothelial growth factor (VEGF) inhibitor, and intravitreal injection of aflibercept (IVA) is the approved treatments of neovascular AMD (nAMD), but the effect on inflammatory response remains unclear. The aim of our study was to investigate the profiles of inflammatory cytokines in the aqueous humor of nAMD patients before and after initiation of IVA. In nAMD patients, IP 10 level was significantly higher and IL-6 level was significantly lower compared with those of cataract patients as controls. Logistic regression analysis identified IP-10 as a positive factor and IL-6 a negative factor associated with the pathogenesis of nAMD. In addition, IP-10 level correlated positively with the mean thickness of macula in the central 1-mm diameter circle. After initiation of IVA, IP-10 level was further elevated, and correlated negatively with VEGF level. These data suggest that IP-10 plays a critical role as an antiangiogenic factor and at the same time an inflammatory factor in the pathogenesis and pathophysiology of nAMD eyes at onset and after IVA initiation. PMID- 29348425 TI - Serum uric acid levels in patients with amyotrophic lateral sclerosis: a meta analysis. AB - The pathogenic mechanism of ALS remains unclear. However, increasing evidence has indicated that uric acid (UA) may play a protective role in the pathogenesis of ALS. The aim of this study was to evaluate the association between serum UA levels and ALS. A comprehensive literature search in PubMed, Embase, Web of Science, and Cochrane Library was conducted up to 31st August, 2017, using keywords. A random-effects model or fixed-effects model was used to calculate the pooled estimate according to the inter-group heterogeneity. Finally, we indentified 8 case-control and 3 cohort studies. The results indicated that patients with ALS had significant decreased levels of serum UA compared to healthy controls (standardized mean difference (SMD) = -0.72, 95% CI [-0.98, 0.46], P < 0.001). Increased serum UA levels were associated with lower all-cause mortality risk among ALS patients (risk ratio (RR) = 0.70, 95% CI [0.57, 0.87], P = 0.001). To summarize, there is an inverse association between serum UA levels and risk of death among ALS patients. Randomized controlled trials with high quality are required to elucidate the role of UA on ALS. PMID- 29348426 TI - One protein, different cell fate: the differential outcome of depleting GRP75 during oxidative stress in neurons. PMID- 29348427 TI - Multi-stage volcanic island flank collapses with coeval explosive caldera-forming eruptions. AB - Volcanic flank collapses and explosive eruptions are among the largest and most destructive processes on Earth. Events at Mount St. Helens in May 1980 demonstrated how a relatively small (<5 km3) flank collapse on a terrestrial volcano could immediately precede a devastating eruption. The lateral collapse of volcanic island flanks, such as in the Canary Islands, can be far larger (>300 km3), but can also occur in complex multiple stages. Here, we show that multistage retrogressive landslides on Tenerife triggered explosive caldera forming eruptions, including the Diego Hernandez, Guajara and Ucanca caldera eruptions. Geochemical analyses were performed on volcanic glasses recovered from marine sedimentary deposits, called turbidites, associated with each individual stage of each multistage landslide. These analyses indicate only the lattermost stages of subaerial flank failure contain materials originating from respective coeval explosive eruption, suggesting that initial more voluminous submarine stages of multi-stage flank collapse induce these aforementioned explosive eruption. Furthermore, there are extended time lags identified between the individual stages of multi-stage collapse, and thus an extended time lag between the initial submarine stages of failure and the onset of subsequent explosive eruption. This time lag succeeding landslide-generated static decompression has implications for the response of magmatic systems to un-roofing and poses a significant implication for ocean island volcanism and civil emergency planning. PMID- 29348428 TI - Evaluation of quantitative parameters for distinguishing pheochromocytoma from other adrenal tumors. AB - Adrenal tumors are increasingly found incidentally during imaging examinations. It is important to distinguish pheochromocytomas from other adrenal tumors because of the risk of hypertensive crisis. Although catecholamines and their metabolites are generally used to diagnose pheochromocytoma, false-positive test results are common. An effective screening method to distinguish pheochromocytoma from adrenal incidentalomas is needed. We analyzed 297 consecutive patients with adrenal incidentalomas. Our findings included 162 non-functioning tumors, 47 aldosterone-producing adenomas, 26 metastases, 22 cases of subclinical Cushing's syndrome, 21 pheochromocytomas, 12 cases of Cushing's syndrome, and 7 adrenocortical cancers. We checked quantitative parameters such as age, blood, and urine catecholamines and their metabolites, neuron-specific enolase, size and computed tomography (CT) attenuation values. Among catecholamine-related parameters, the sum of urine metanephrine and normetanephrine (urineMNM) levels produced the highest area under the receiver operating characteristic curve regarding discrimination of pheochromocytoma from other lesions. Size and CT attenuation values also differed significantly. However, size was correlated with catecholamine levels. CT attenuation was not correlated with other factors. The optimal thresholds were 19 Hounsfield units (HU) for CT attenuation (sensitivity, 100%; specificity, 60%) and 0.43 mg/24 h for urineMNM (sensitivity, 89%; specificity, 96%). No pheochromocytomas were evident when CT attenuation values were under 19 HU. Even in adrenal tumors with CT attenuation values >= 19 HU, when urineMNM was < 0.43 mg/24 h, the frequency of pheochromocytoma was only 4.3%, when urineMNM was >= 0.43 mg/24 h, the frequency of pheochromocytoma was 93% and when urineMNM was > 0.77 mg/24 h the frequency of pheochromocytoma was 100%. CT attenuation value and urineMNM represented the most useful combination for diagnosis of pheochromocytoma. PMID- 29348429 TI - Structural basis of trans-synaptic interactions between PTPdelta and SALMs for inducing synapse formation. AB - Synapse formation is triggered by trans-synaptic interactions of cell adhesion molecules, termed synaptic organizers. Three members of type-II receptor protein tyrosine phosphatases (classified as type-IIa RPTPs; PTPdelta, PTPsigma and LAR) are known as presynaptic organizers. Synaptic adhesion-like molecules (SALMs) have recently emerged as a family of postsynaptic organizers. Although all five SALM isoforms can bind to the type-IIa RPTPs, only SALM3 and SALM5 reportedly have synaptogenic activities depending on their binding. Here, we report the crystal structures of apo-SALM5, and PTPdelta-SALM2 and PTPdelta-SALM5 complexes. The leucine-rich repeat (LRR) domains of SALMs interact with the second immunoglobulin-like (Ig) domain of PTPdelta, whereas the Ig domains of SALMs interact with both the second and third Ig domains of PTPdelta. Unexpectedly, the structures exhibit the LRR-mediated 2:2 complex. Our synaptogenic co-culture assay using site-directed SALM5 mutants demonstrates that presynaptic differentiation induced by PTPdelta-SALM5 requires the dimeric property of SALM5. PMID- 29348430 TI - Rotator side chains trigger cooperative transition for shape and function memory effect in organic semiconductors. AB - Martensitic transition is a solid-state phase transition involving cooperative movement of atoms, mostly studied in metallurgy. The main characteristics are low transition barrier, ultrafast kinetics, and structural reversibility. They are rarely observed in molecular crystals, and hence the origin and mechanism are largely unexplored. Here we report the discovery of martensitic transition in single crystals of two different organic semiconductors. In situ microscopy, single-crystal X-ray diffraction, Raman and nuclear magnetic resonance spectroscopy, and molecular simulations combined indicate that the rotating bulky side chains trigger cooperative transition. Cooperativity enables shape memory effect in single crystals and function memory effect in thin film transistors. We establish a molecular design rule to trigger martensitic transition in organic semiconductors, showing promise for designing next-generation smart multifunctional materials. PMID- 29348431 TI - A synthetic combinatorial approach to disabling deviant Hedgehog signaling. AB - Mutations in components of the Hedgehog (HH) signal transduction pathway are found in the majority of basal cell carcinoma (BCC) and medulloblastoma incidents. Cancerous cells with intrinsic or acquired resistance to antagonists targeting the seven transmembrane effector Smoothened (SMO) frequently invoke alternative mechanisms for maintaining deviant activity of the GLI DNA binding proteins. Here we introduce a chemical agent that simultaneously achieves inhibition of SMO and GLI activity by direct targeting of the SMO heptahelical domain and the GLI-modifying enzymes belonging to the histone deacetylase (HDAC) family. We demonstrate a small molecule SMO-HDAC antagonist (IHR-SAHA) retains inhibitory activity for GLI transcription induced by SMO-dependent and independent mechanisms frequently associated with cancer biogenesis. Synthetic combinatorial therapeutic agents such as IHR-SAHA that a priori disable cancer drivers and anticipated mechanisms of drug resistance could extend the duration of disease remission, and provide an alternative clinical development path for realizing combinatorial therapy modalities. PMID- 29348433 TI - Speciation of common Gram-negative pathogens using a highly multiplexed high resolution melt curve assay. AB - The identification of the bacterial species responsible for an infection remains an important step for the selection of antimicrobial therapy. Gram-negative bacteria are an important source of hospital and community acquired infections and frequently antimicrobial resistant. Speciation of bacteria is typically carried out by biochemical profiling of organisms isolated from clinical specimens, which is time consuming and delays the initiation of tailored treatment. Whilst molecular methods such as PCR have been used, they often struggle with the challenge of detecting and discriminating a wide range of targets. High resolution melt analysis is an end-point qPCR detection method that provides greater multiplexing capability than probe based methods. Here we report the design of a high resolution melt analysis assay for the identification of six common Gram-negative pathogens; Escherichia coli, Klebsiella pneumoniae, Klebsiella oxytoca, Pseudomonas aeruginosa, Salmonella Sp, and Acinetobacter baumannii, and a generic Gram-negative specific 16S rRNA control. The assay was evaluated using a well characterised collection of 113 clinically isolated Gram negative bacteria. The agreement between the HRM assay and the reference test of PCR and sequencing was 98.2% (Kappa 0.96); the overall sensitivity and specificity of the assay was 97.1% (95% CI: 90.1-99.7%) and 100% (95% CI: 91.78 100%) respectively. PMID- 29348432 TI - Genome-wide association study of self-reported food reactions in Japanese identifies shrimp and peach specific loci in the HLA-DR/DQ gene region. AB - Food allergy is an increasingly important health problem in the world. Several genome-wide association studies (GWAS) focused on European ancestry samples have identified food allergy-specific loci in the HLA class II region. We conducted GWAS of self-reported reactivity with common foods using the data from 11011 Japanese women and identified shrimp and peach allergy-specific loci in the HLA DR/DQ gene region tagged by rs74995702 (P = 6.30 * 10-17, OR = 1.91) and rs28359884 (P = 2.3 * 10-12, OR = 1.80), respectively. After HLA imputation using a Japanese population-specific reference, the most strongly associated haplotype was HLA-DRB1*04:05-HLA-DQB1*04:01 for shrimp allergy (P = 3.92 * 10-19, OR = 1.99) and HLA-DRB1*09:01-HLA-DQB1*03:03 for peach allergy (P = 1.15 * 10-7, OR = 1.68). Additionally, both allergies' associated variants were eQTLs for several HLA genes, with HLA-DQA2 the single eQTL gene shared between the two traits. Our study suggests that allergy to certain foods may be related to genetic differences that tag both HLA alleles having particular epitope binding specificities as well as variants modulating expression of particular HLA genes. Investigating this further could increase our understanding of food allergy aetiology and potentially lead to better therapeutic strategies for allergen immunotherapies. PMID- 29348436 TI - High-throughput analysis using non-depletive SPME: challenges and applications to the determination of free and total concentrations in small sample volumes. AB - In vitro high-throughput non-depletive quantitation of chemicals in biofluids is of growing interest in many areas. Some of the challenges facing researchers include the limited volume of biofluids, rapid and high-throughput sampling requirements, and the lack of reliable methods. Coupled to the above, growing interest in the monitoring of kinetics and dynamics of miniaturized biosystems has spurred the demand for development of novel and revolutionary methodologies for analysis of biofluids. The applicability of solid-phase microextraction (SPME) is investigated as a potential technology to fulfill the aforementioned requirements. As analytes with sufficient diversity in their physicochemical features, nicotine, N,N-Diethyl-meta-toluamide, and diclofenac were selected as test compounds for the study. The objective was to develop methodologies that would allow repeated non-depletive sampling from 96-well plates, using 100 uL of sample. Initially, thin film-SPME was investigated. Results revealed substantial depletion and consequent disruption in the system. Therefore, new ultra-thin coated fibers were developed. The applicability of this device to the described sampling scenario was tested by determining the protein binding of the analytes. Results showed good agreement with rapid equilibrium dialysis. The presented method allows high-throughput analysis using small volumes, enabling fast reliable free and total concentration determinations without disruption of system equilibrium. PMID- 29348435 TI - Macrophage sensing of single-walled carbon nanotubes via Toll-like receptors. AB - Carbon-based nanomaterials including carbon nanotubes (CNTs) have been shown to trigger inflammation. However, how these materials are 'sensed' by immune cells is not known. Here we compared the effects of two carbon-based nanomaterials, single-walled CNTs (SWCNTs) and graphene oxide (GO), on primary human monocyte derived macrophages. Genome-wide transcriptomics assessment was performed at sub cytotoxic doses. Pathway analysis of the microarray data revealed pronounced effects on chemokine-encoding genes in macrophages exposed to SWCNTs, but not in response to GO, and these results were validated by multiplex array-based cytokine and chemokine profiling. Conditioned medium from SWCNT-exposed cells acted as a chemoattractant for dendritic cells. Chemokine secretion was reduced upon inhibition of NF-kappaB, as predicted by upstream regulator analysis of the transcriptomics data, and Toll-like receptors (TLRs) and their adaptor molecule, MyD88 were shown to be important for CCL5 secretion. Moreover, a specific role for TLR2/4 was confirmed by using reporter cell lines. Computational studies to elucidate how SWCNTs may interact with TLR4 in the absence of a protein corona suggested that binding is guided mainly by hydrophobic interactions. Taken together, these results imply that CNTs may be 'sensed' as pathogens by immune cells. PMID- 29348438 TI - Procalcitonin Guiding Antimicrobial Therapy Duration in Febrile Cancer Patients with Documented Infection or Neutropenia. AB - In this analysis, we identified febrile cancer patients with documented infections or neutropenia, whose procalcitonin levels are low at baseline or decrease on antibiotics. These patients had similar outcomes in terms of mortality and relapse of infection regardless of the duration of antimicrobial therapy (less or more than 7 days). PMID- 29348439 TI - Dual suppression of inner and outer mitochondrial membrane functions augments apoptotic responses to oncogenic MAPK inhibition. AB - Mitogen-activated protein kinase (MAPK) pathway inhibitors show promise in treating melanoma, but are unsuccessful in achieving long-term remission. Concordant with clinical data, BRAFV600E melanoma cells eliminate glycolysis upon inhibition of BRAFV600E or MEK with the targeted therapies Vemurafenib or Trametinib, respectively. Consequently, exposure to these therapies reprograms cellular metabolism to increase mitochondrial respiration and restrain cell death commitment. As the inner mitochondrial membrane (IMM) is sub-organellar site of oxidative phosphorylation (OXPHOS), and the outer mitochondrial membrane (OMM) is the major site of anti-apoptotic BCL-2 protein function, we hypothesized that suppressing these critical mitochondrial membrane functions would be a rational approach to maximize the pro-apoptotic effect of MAPK inhibition. Here, we demonstrate that disruption of OXPHOS with the mitochondria-specific protonophore BAM15 promotes the mitochondrial pathway of apoptosis only when oncogenic MAPK signaling is inhibited. Based on RNA-sequencing analyses of nevi and primary melanoma samples, increased pro-apoptotic BCL-2 family expression positively correlates with high-risk disease suggesting a highly active anti-apoptotic BCL-2 protein repertoire likely contributes to worse outcome. Indeed, combined inhibition of the anti-apoptotic BCL-2 repertoire with BH3-mimetics, OXPHOS, and oncogenic MAPK signaling induces fulminant apoptosis and eliminates clonogenic survival. Altogether, these data suggest that dual suppression of IMM and OMM functions may unleash the normally inadequate pro-apoptotic effects of oncogenic MAPK inhibition to eradicate cancer cells, thus preventing the development of resistant disease, and ultimately, supporting long-term remission. PMID- 29348437 TI - First experimental proof of Proton Boron Capture Therapy (PBCT) to enhance protontherapy effectiveness. AB - Protontherapy is hadrontherapy's fastest-growing modality and a pillar in the battle against cancer. Hadrontherapy's superiority lies in its inverted depth dose profile, hence tumour-confined irradiation. Protons, however, lack distinct radiobiological advantages over photons or electrons. Higher LET (Linear Energy Transfer) 12C-ions can overcome cancer radioresistance: DNA lesion complexity increases with LET, resulting in efficient cell killing, i.e. higher Relative Biological Effectiveness (RBE). However, economic and radiobiological issues hamper 12C-ion clinical amenability. Thus, enhancing proton RBE is desirable. To this end, we exploited the p + 11B -> 3alpha reaction to generate high-LET alpha particles with a clinical proton beam. To maximize the reaction rate, we used sodium borocaptate (BSH) with natural boron content. Boron-Neutron Capture Therapy (BNCT) uses 10B-enriched BSH for neutron irradiation-triggered alpha particles. We recorded significantly increased cellular lethality and chromosome aberration complexity. A strategy combining protontherapy's ballistic precision with the higher RBE promised by BNCT and 12C-ion therapy is thus demonstrated. PMID- 29348440 TI - Neural predictors of cognitive improvement by multi-strategic memory training based on metamemory in older adults with subjective memory complaints. AB - Previous studies have indicated that memory training may help older people improve cognition. However, evidence regarding who will benefit from such memory trainings has not been fully discovered yet. Understanding the clinical and neural inter-individual differences for predicting cognitive improvement is important for maximizing the training efficacy of memory-training programs. The purpose of this study was to find the individual characteristics and brain morphological characteristics that predict cognitive improvement after a multi strategic memory training based on metamemory concept. Among a total of 49 older adults, 39 participated in the memory-training program and 10 did not. All of them underwent brain MRIs at the entry of the training and received the neuropsychological tests twice, before and after the training. Stepwise regression analysis showed that lower years of education predicted cognitive improvement in the training group. In MRI, thinner cortices of precuneus, cuneus and posterior cingulate gyrus and higher white matter anisotropy of the splenium of corpus callosum predicted cognitive improvement in the training group. Old age, lower education level and individual differences in cortical thickness and white matter microstructure of the episodic memory network may predict outcomes following multi-strategic training. PMID- 29348434 TI - Identification of genetic elements in metabolism by high-throughput mouse phenotyping. AB - Metabolic diseases are a worldwide problem but the underlying genetic factors and their relevance to metabolic disease remain incompletely understood. Genome-wide research is needed to characterize so-far unannotated mammalian metabolic genes. Here, we generate and analyze metabolic phenotypic data of 2016 knockout mouse strains under the aegis of the International Mouse Phenotyping Consortium (IMPC) and find 974 gene knockouts with strong metabolic phenotypes. 429 of those had no previous link to metabolism and 51 genes remain functionally completely unannotated. We compared human orthologues of these uncharacterized genes in five GWAS consortia and indeed 23 candidate genes are associated with metabolic disease. We further identify common regulatory elements in promoters of candidate genes. As each regulatory element is composed of several transcription factor binding sites, our data reveal an extensive metabolic phenotype-associated network of co-regulated genes. Our systematic mouse phenotype analysis thus paves the way for full functional annotation of the genome. PMID- 29348441 TI - SDF1 gradient associates with the distribution of c-Kit+ cardiac cells in the heart. AB - Identification of the adult cardiac stem cells (CSCs) has offered new therapeutic possibilities for treating ischemic myocardium. CSCs positive for the cell surface antigen c-Kit are known as the primary source for cardiac regeneration. Accumulating evidence shows that chemokines play important roles in stem cell homing. Here we investigated molecular targets to be utilized in modulating the mobility of endogenous CSCs. In a four week follow-up after experimental acute myocardial infarction (AMI) with ligation of the left anterior descending (LAD) coronary artery of Sprague-Dawley rats c-Kit+ CSCs redistributed in the heart. The number of c-Kit+ CSCs in the atrial c-Kit niche was diminished, whereas increased amount was observed in the left ventricle and apex. This was associated with increased expression of stromal cell-derived factor 1 alpha (SDF1alpha), and a significant positive correlation was found between c-Kit+ CSCs and SDF1alpha expression in the heart. Moreover, the migratory capacity of isolated c-Kit+ CSCs was induced by SDF1 treatment in vitro. We conclude that upregulation of SDF1alpha after AMI associates with increased expression of endogenous c-Kit+ CSCs in the injury area, and show induced migration of c-Kit+ cells by SDF1. PMID- 29348442 TI - A neutral ceramidase, NlnCDase, is involved in the stress responses of brown planthopper, Nilaparvata lugens (Stal). AB - Ceramidases (CDases) are vital enzymes involved in the biosynthesis of sphingolipids, which are essential components of eukaryotic membranes. The function of these enzymes in insects, however, is poorly understood. We identified a neutral ceramidase (NlnCDase) from the brown planthopper, Nilaparvata lugens, one of the most destructive hemipteran pests of rice. The C12 ceramide was the most preferred substrate for the NlnCDase enzyme. The activity of the NlnCDase enzyme was highest in the neutral-pH range (pH 6.0). It was inhibited by EGTA, Cs+ and Fe2+, while stimulated by EDTA and Ca2+. Moreover, the NlnCDase has higher transcript level and activity in adults than in eggs and nymphs, and in the reproductive organs (ovaries and spermaries) than in other tissues (i.e. heads, thorax, legs, midguts), which suggested that the NlnCDase might be elevated to mediate developmental process. In addition, transcripts and activity of the NlnCDase were up-regulated under abiotic stresses including starvation, abnormal temperature, and insecticides, and biotic stress of resistant rice varieties. Knocking down NlnCDase by RNA interference increased female survival under starvation and temperature stresses, suggesting that NlnCDase might be involved in the stress response in N. lugens. PMID- 29348444 TI - ToxicDocs (www.ToxicDocs.org): from history buried in stacks of paper to open, searchable archives online. AB - As a result of a legal mechanism called discovery, the authors accumulated millions of internal corporate and trade association documents related to the introduction of new products and chemicals into workplaces and commerce. What did these private entities discuss among themselves and with their experts? The plethora of documents, both a blessing and a curse, opened new sources and interesting questions about corporate and regulatory histories. But they also posed an almost insurmountable challenge to historians. Thus emerged ToxicDocs, possible only with a technological innovation known as "Big Data." That refers to the sheer volume of new digital data and to the computational power to analyze them. Users will be able to identify what firms knew (or did not know) about the dangers of toxic substances in their products-and when. The database opens many areas to inquiry including environmental studies, business history, government regulation, and public policy. ToxicDocs will remain a resource free and open to all, anywhere in the world. PMID- 29348445 TI - ToxicDocs: a new resource for assessing the impact of corporate practices on health. PMID- 29348443 TI - A general and flexible method for signal extraction from single-cell RNA-seq data. AB - Single-cell RNA-sequencing (scRNA-seq) is a powerful high-throughput technique that enables researchers to measure genome-wide transcription levels at the resolution of single cells. Because of the low amount of RNA present in a single cell, some genes may fail to be detected even though they are expressed; these genes are usually referred to as dropouts. Here, we present a general and flexible zero-inflated negative binomial model (ZINB-WaVE), which leads to low dimensional representations of the data that account for zero inflation (dropouts), over-dispersion, and the count nature of the data. We demonstrate, with simulated and real data, that the model and its associated estimation procedure are able to give a more stable and accurate low-dimensional representation of the data than principal component analysis (PCA) and zero inflated factor analysis (ZIFA), without the need for a preliminary normalization step. PMID- 29348446 TI - ToxicDocs (www.ToxicDocs.org) goes live: A giant step toward leveling the playing field for efforts to combat toxic exposures. PMID- 29348447 TI - Browsing a corporation's mind. PMID- 29348449 TI - ToxicDocs and the fight against biased public health science worldwide. PMID- 29348448 TI - Archival sources on asbestos and silicosis in Southern Africa and Australia. PMID- 29348450 TI - The value of not being lost in our digital world. PMID- 29348451 TI - ToxicDocs: using the US legal system to confront industries' systematic counterattacks against public health. PMID- 29348452 TI - Combination Therapy Strategy of Quorum Quenching Enzyme and Quorum Sensing Inhibitor in Suppressing Multiple Quorum Sensing Pathways of P. aeruginosa. AB - The threat of antibiotic resistant bacteria has called for alternative antimicrobial strategies that would mitigate the increase of classical resistance mechanism. Many bacteria employ quorum sensing (QS) to govern the production of virulence factors and formation of drug-resistant biofilms. Targeting the mechanism of QS has proven to be a functional alternative to conventional antibiotic control of infections. However, the presence of multiple QS systems in individual bacterial species poses a challenge to this approach. Quorum sensing inhibitors (QSI) and quorum quenching enzymes (QQE) have been both investigated for their QS interfering capabilities. Here, we first simulated the combination effect of QQE and QSI in blocking bacterial QS. The effect was next validated by experiments using AiiA as QQE and G1 as QSI on Pseudomonas aeruginosa LasR/I and RhlR/I QS circuits. Combination of QQE and QSI almost completely blocked the P. aeruginosa las and rhl QS systems. Our findings provide a potential chemical biology application strategy for bacterial QS disruption. PMID- 29348453 TI - Enhanced anastomotic healing by Daikenchuto (TJ-100) in rats. AB - Daikenchuto (DKT), a traditional Japanese medicine, is widely used to treat various gastrointestinal disorders. This study aimed to investigate whether DKT could promote the anastomotic healing in a rat model. Pedicled colonic segments were made in left colon by ligation of the feeding arteries, and then intestinal continuity was restored. Colonic blood flow was analyzed by using ICG fluorescence imaging: Fmax, Tmax, T1/2, and Slope were calculated. Anastomotic leakage (AL) was found in 6 of 19 rats (31.6%) in the control group, whereas in 1 of 16 rats (6.2%) in the DKT group. The Fmax and Slope of DKT group were significantly higher than those of control group. DKT could promote the anastomotic healing, with the higher bursting pressure on postoperative day (POD) 2 and 5, the larger granulation thickness on POD 5, and neoangiogenesis on POD 5. Histological examination showed DKT exhibited a decreased inflammatory cell infiltration, enhanced fibroblast infiltration, and enhanced collagen density on POD 5. In the DKT group, the levels of TGFbeta1 on POD 2 and VEGFalpha on POD5 were significantly higher, whereas the level of TNFalpha on POD 2 was significantly lower. Therefore, DKT could be effective for the prevention of AL following colorectal surgery. PMID- 29348454 TI - Harnessing insulin- and leptin-induced oxidation of PTP1B for therapeutic development. AB - The protein tyrosine phosphatase PTP1B is a major regulator of glucose homeostasis and energy metabolism, and a validated target for therapeutic intervention in diabetes and obesity. Nevertheless, it is a challenging target for inhibitor development. Previously, we generated a recombinant antibody (scFv45) that recognizes selectively the oxidized, inactive conformation of PTP1B. Here, we provide a molecular basis for its interaction with reversibly oxidized PTP1B. Furthermore, we have identified a small molecule inhibitor that mimics the effects of scFv45. Our data provide proof-of-concept that stabilization of PTP1B in an inactive, oxidized conformation by small molecules can promote insulin and leptin signaling. This work illustrates a novel paradigm for inhibiting the signaling function of PTP1B that may be exploited for therapeutic intervention in diabetes and obesity. PMID- 29348455 TI - Programmed cell death can increase the efficacy of microbial bet -hedging. AB - Programmed cell death (PCD) occurs in both unicellular and multicellular organisms. While PCD plays a key role in the development and maintenance of multicellular organisms, explaining why single-celled organisms would evolve to actively commit suicide has been far more challenging. Here, we explore the potential for PCD to act as an accessory to microbial bet-hedging strategies that utilize stochastic phenotype switching. We consider organisms that face unpredictable and recurring disasters, in which fitness depends on effective phenotypic diversification. We show that when reproductive opportunities are limited by carrying capacity, PCD drives population turnover, providing increased opportunities for phenotypic diversification through stochastic phenotype switching. The main cost of PCD, providing resources for growth to a PCD(-) competitor, is ameliorated by genetic assortment in spatially structured populations. Using agent -based simulations, we explore how basic demographic factors, namely bottlenecks and local dispersal, can generate sufficient spatial structure to favor the evolution of high PCD rates. PMID- 29348456 TI - TWIST1 induces expression of discoidin domain receptor 2 to promote ovarian cancer metastasis. AB - The mesenchymal gene program has been shown to promote the metastatic progression of ovarian cancer; however, specific proteins induced by this program that lead to these metastatic behaviors have not been identified. Using patient derived tumor cells and established human ovarian tumor cell lines, we find that the Epithelial-to-Mesenchymal Transition inducing factor TWIST1 drives expression of discoidin domain receptor 2 (DDR2), a receptor tyrosine kinase (RTK) that recognizes fibrillar collagen as ligand. The expression and action of DDR2 was critical for mesothelial cell clearance, invasion and migration in ovarian tumor cells. It does so, in part, by upregulating expression and activity of matrix remodeling enzymes that lead to increased cleavage of fibronectin and spreading of tumor cells. Additionally, DDR2 stabilizes SNAIL1, allowing for sustained mesenchymal phenotype. In patient derived ovarian cancer specimens, DDR2 expression correlated with enhanced invasiveness. DDR2 expression was associated with advanced stage ovarian tumors and metastases. In vivo studies demonstrated that the presence of DDR2 is critical for ovarian cancer metastasis. These findings indicate that the collagen receptor DDR2 is critical for multiple steps of ovarian cancer progression to metastasis, and thus, identifies DDR2 as a potential new target for the treatment of metastatic ovarian cancer. PMID- 29348457 TI - LTBP3 promotes early metastatic events during cancer cell dissemination. AB - Latent transforming growth factor beta (TGFbeta)-binding proteins (LTBPs) are important for the secretion, activation, and function of mature TGFbeta, especially so in cancer cell physiology. However, specific roles of the LTBPs remain understudied in the context of the primary tumor microenvironment. Herein, we investigated the role of LTBP3 in the distinct processes involved in cancer metastasis. By using three human tumor cell lines of different tissue origin (epidermoid HEp-3 and prostate PC-3 carcinomas and HT-1080 fibrosarcoma) and several metastasis models conducted in both mammalian and avian settings, we show that LTBP3 is involved in the early dissemination of primary cancer cells, namely in the intravasation step of the metastatic cascade. Knockdown of LTBP3 in all tested cell lines led to significant inhibition of tumor cell intravasation, but did not affect primary tumor growth. LTBP3 was dispensable in the late steps of carcinoma cell metastasis that follow tumor cell intravasation, including vascular arrest, extravasation, and tissue colonization. However, LTBP3 depletion diminished the angiogenesis-inducing potential of HEp-3 cells in vivo, which was restorable by exogenous delivery of LTBP3 protein. A similar compensatory approach rescued the dampened intravasation of LTBP3-deficient HEp-3 cells, suggesting that LTBP3 regulates the induction of the intravasation-supporting angiogenic vasculature within developing primary tumors. Using our recently developed microtumor model, we confirmed that LTBP3 loss resulted in the development of intratumoral vessels with an abnormal microarchitecture incompatible with efficient intravasation of HEp-3 carcinoma cells. Collectively, these findings demonstrate that LTBP3 represents a novel oncotarget that has distinctive functions in the regulation of angiogenesis-dependent tumor cell intravasation, a critical process during early cancer dissemination. Our experimental data are also consistent with the survival prognostic value of LTBP3 expression in early-stage head and neck squamous cell carcinomas, further indicating a specific role for LTBP3 in cancer progression toward metastatic disease. PMID- 29348458 TI - Hic-5 regulates fibrillar adhesion formation to control tumor extracellular matrix remodeling through interaction with tensin1. AB - The linearization of the stromal extracellular matrix (ECM) by cancer-associated fibroblasts (CAFs) facilitates tumor cell growth and metastasis. However, the mechanism by which the ECM is remodeled is not fully understood. Hic-5 (TGFbeta1i1), a focal adhesion scaffold protein, has previously been reported to be crucial for stromal ECM deposition and remodeling in vivo. Herein we show that CAFs lacking Hic-5 exhibit a significant reduction in the ability to form fibrillar adhesions, a specialized form of focal adhesion that promote fibronectin fibrillogenesis. Hic-5 was found to promote fibrillar adhesion formation through a newly characterized interaction with tensin1. Furthermore, Src-dependent phosphorylation of Hic-5 facilitated the interaction with tensin1 to prevent beta1 integrin internalization and trafficking to the lysosome. The interaction between Hic-5 and tensin1 was mechanosensitive, promoting fibrillar adhesion formation and fibronectin fibrillogenesis in a rigidity-dependent fashion. Importantly, this Src-dependent mechanism was conserved in three dimensional (3D) ECM environments. Immunohistochemistry of tensin1 showed enrichment in CAFs in vivo, which was abrogated upon deletion of Hic-5. Interestingly, elevated Hic-5 expression correlates with reduced distant metastasis-free survival in patients with basal-like, HER2+ and grade 3 tumors. Thus, we have identified Hic-5 as a crucial regulator of ECM remodeling in CAFs by promoting fibrillar adhesion formation through a novel interaction with tensin1. PMID- 29348459 TI - Distinct dependencies on receptor tyrosine kinases in the regulation of MAPK signaling between BRAF V600E and non-V600E mutant lung cancers. AB - BRAF is one of the most frequently mutated genes across a number of different cancers, with the best-characterized mutation being V600E. Despite the successes of treating BRAF mutant V600E lung cancer with BRAF pathway inhibitors, treatment strategies targeting tumors with non-V600E mutations are yet to be established. We studied cellular signaling differences between lung cancers with different BRAF mutations and determined their sensitivities to BRAF pathway inhibitors. Here, we observed that MEK inhibition induced feedback activation of the receptor tyrosine kinase (RTK) EGFR, and in some cases the RTK FGFR, resulting in transient suppression of ERK phosphorylation in BRAF non-V600E, but not BRAF V600E, mutant cells. Furthermore, we found that both EGFR and FGFR activated the MEK/ERK pathway, despite the presence of BRAF non-V600E mutations with elevated kinase activity. Moreover, in BRAF non-V600E mutants with impaired kinase activities, EGFR had even greater control over the MEK/ERK pathway, essentially contributing completely to the tonic mitogen-activated protein kinase (MAPK) signal. Accordingly, the combination of MEK inhibitor with EGFR inhibitor was effective at shrinking tumors in mouse model of BRAF non-V600E mutant lung cancer. Furthermore, the results were recapitulated with a clinically relevant dual inhibitor of EGFR and RAF, BGB-283. Overall, although BRAF V600E mutant cells are sensitive to BRAF inhibition, non-V600E mutant cancer cells are reliant on RTKs for their MAPK activation and inhibiting both MEK and RTKs are necessary in these cancers. Our findings provide evidence of critical survival signals in BRAF non-V600E mutant cancers, which could pave the way for effective treatment of these cancers. PMID- 29348460 TI - FYN promotes mesenchymal phenotypes of basal type breast cancer cells through STAT5/NOTCH2 signaling node. AB - Basal type breast cancer is the most aggressive and has mesenchymal features with a high metastatic ability. However, the signaling node that determines the basal type features in breast cancer remains obscure. Here, we report that FYN among SRC family kinases is required for the maintenance of basal type breast cancer subtype. Importantly, FYN enhanced NOTCH2 activation in basal type breast cancer cells through STAT5-mediated upregulation of Jagged-1 and DLL4 NOTCH ligands, thereby contributed to mesenchymal phenotypes. In addition, we found that high levels of FYN persist in basal type breast cancer cells by a positive feedback loop between FYN and STAT5. FYN interacted directly with STAT5 and increased p STAT5 that further acts as a transcription factor for FYN. Taken together, our findings demonstrate a pivotal role of FYN and its downstream effectors in maintaining the basal type features in breast cancer. PMID- 29348461 TI - Loss of Cdk5 in breast cancer cells promotes ROS-mediated cell death through dysregulation of the mitochondrial permeability transition pore. AB - Cdk5, which plays a role in the development and progression of many human cancers, localizes in the mitochondria, a key determinant of apoptotic cell death. Cdk5 is upregulated in breast cancer cells but it was shown that Cdk5 loss increases chemotherapy-induced apoptosis. However, the molecular mechanism by which Cdk5 loss promotes cell death remains unclear. Here, we investigate the possibility that Cdk5 loss activates the intrinsic apoptotic pathway in breast cancer cells. We demonstrate that Cdk5-deficient breast cancer cells exhibit increased mitochondrial depolarization, mitochondrial ROS levels, and mitochondrial fragmentation that is associated with an increase in both intracellular Ca2+ level and calcineurin activity, and DRP1 S637 dephosphorylation. These events accompany increased apoptosis, indicating that Cdk5 loss promotes mitochondria-mediated apoptosis. To define this apoptotic pathway, we utilized various inhibitors of mitochondrial function. Apoptosis is completely prevented by mPTP inhibition, almost fully inhibited by blocking ROS and unaffected by inhibition of mitochondrial fission, suggesting that apoptosis in breast cancer cells due to Cdk5 loss occurs via a novel mPTP-dependent mechanism that acts primarily through ROS increase. PMID- 29348462 TI - Piperlongumine and p53-reactivator APR-246 selectively induce cell death in HNSCC by targeting GSTP1. AB - TP53 mutations frequently occur in head and neck squamous cell carcinoma (HNSCC) patients without human papillomavirus infection. The recurrence rate for these patients is distinctly high. It has been actively explored to identify agents that target TP53 mutations and restore wild-type (WT) TP53 activities in HNSCC. PRIMA-1 (p53-reactivation and induction of massive apoptosis-1) and its methylated analogue PRIMA-1Met (also called APR-246) were found to be able to reestablish the DNA-binding activity of p53 mutants and reinstate the functions of WT p53. Herein we report that piperlongumine (PL), an alkaloid isolated from Piper longum L., synergizes with APR-246 to selectively induce apoptosis and autophagic cell death in HNSCC cells, whereas primary and immortalized mouse embryonic fibroblasts and spontaneously immortalized non-tumorigenic human skin keratinocytes (HaCat) are spared from the damage by the co-treatment. Interestingly, PL-sensitized HNSCC cells to APR-246 are TP53 mutation independent. Instead, we demonstrated that glutathione S-transferase pi 1 (GSTP1), a GST family member that catalyzes the conjugation of GSH with electrophilic compounds to fulfill its detoxification function, is highly expressed in HNSCC tissues. Administration of PL and APR-246 significantly suppresses GSTP1 activity, resulting in the accumulation of ROS, depletion of GSH, elevation of GSSG, and DNA damage. Ectopic expression of GSTP1 or pre treatment with antioxidant N-acetyl-L-cysteine (NAC) abrogates the ROS elevation and decreases DNA damage, apoptosis, and autophagic cell death prompted by PL/APR 246. In addition, administration of PL and APR-246 impedes UMSCC10A xenograft tumor growth in SCID mice. Taken together, our data suggest that HNSCC cells are selectively sensitive to the combination of PL and APR-246 due to a remarkably synergistic effect of the co-treatment in the induction of ROS by suppression of GSTP1. PMID- 29348463 TI - The bone microstructure of polar "hypsilophodontid" dinosaurs from Victoria, Australia. AB - High-latitude (i.e., "polar") Mesozoic fauna endured months of twilight and relatively low mean annual temperatures. Yet non-avian dinosaurs flourished in this taxing environment. Fossils of basal ornithopod dinosaurs ("hypsilophodontids") are common in the Early Cretaceous high-latitude sediments of Victoria, Australia, and four taxa have been described; although their ontogenetic histories are largely unexplored. In the present study, eighteen tibiae and femora were utilized in the first multi-specimen ontogenetic histological analysis of Australian polar hypsilophodontids. The sample consists of eleven individuals from the Flat Rocks locality (Late Valanginian or Barremian), and five from the Dinosaur Cove locality (Albian). In both groups, growth was most rapid during the first three years, and skeletal maturity occurred between five and seven years. There is a weak asymptotic trend in a plot of growth mark count versus femur length, with considerable individual variation. Histology suggests two genera are present within the Dinosaur Cove sample, but bone microstructure alone could not distinguish genera within the Flat Rocks sample, or across the two geologically separate (~ 26 Ma) localities. Additional histologic sampling, combined with morphological analyses, may facilitate further differentiation between ontogenetic, individual, and species variation. PMID- 29348464 TI - 150,000-year palaeoclimate record from northern Ethiopia supports early, multiple dispersals of modern humans from Africa. AB - Climatic change is widely acknowledged to have played a role in the dispersal of modern humans out of Africa, but the timing is contentious. Genetic evidence links dispersal to climatic change ~60,000 years ago, despite increasing evidence for earlier modern human presence in Asia. We report a deep seismic and near continuous core record of the last 150,000 years from Lake Tana, Ethiopia, close to early modern human fossil sites and to postulated dispersal routes. The record shows varied climate towards the end of the penultimate glacial, followed by an abrupt change to relatively stable moist climate during the last interglacial. These conditions could have favoured selection for behavioural versatility, population growth and range expansion, supporting models of early, multiple dispersals of modern humans from Africa. PMID- 29348465 TI - Publisher Correction: EFHD2 promotes epithelial-to-mesenchymal transition and correlates with postsurgical recurrence of stage I lung adenocarcinoma. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29348466 TI - Gender specific association of parathyroid hormone and vitamin D with metabolic syndrome in population with preserved renal function. AB - The association of parathyroid hormone (PTH) and vitamin D with Metabolic syndrome (MetS) was evaluated using representative data from the Korean population. Data from 7004 subjects aged 50 or older with preserved renal function (excluding chronic kidney disease stage 3b to 5) who were included in the Korean National Health and Nutrition Examination Survey between 2008 and 2010 were analysed. Higher PTH levels (pg/ml) were observed in subjects with MetS than in those without MetS among both genders (60.1 (58.6-61.6) vs. 62.4 (60.7-64.2) in males p = 0.018, 60.7 (59.4-62.1) vs. 63.9 (62.4-65.6) in females, p < 0.001). For females, PTH levels were significantly higher in subjects with MetS than in those without MetS after adjustment for possible covariates. Lower 25(OH)D levels were significantly associated with MetS only in male subjects (p = 0.004). As the number of MetS components increased, a significant rise in PTH levels (p for trend 0.005 in males and 0.024 in females) and a decrease in 25(OH)D levels (p for trend < 0.001 in males and 0.053 in females) were observed. In conclusion, among subjects with preserved renal function, PTH levels were possibly associated with MetS in females, whereas vitamin D levels exhibited a possible link to MetS in males. PMID- 29348467 TI - Efficacy of MEK inhibition in a K-Ras-driven cholangiocarcinoma preclinical model. AB - Intrahepatic cholangiocarcinoma (iCCA) is a deadly malignancy with limited treatment options. Gain-of-function mutations in K-Ras is a very frequent alteration, occurring in ~15 to 25% of human iCCA patients. Here, we established a new iCCA model by expressing activated forms of Notch1 (NICD) and K-Ras (K RasV12D) in the mouse liver (K-Ras/NICD mice). Furthermore, we investigated the therapeutic potential of MEK inhibitors in vitro and in vivo using human CCA cell lines and K-Ras/NICD mice, respectively. Treatment with U0126, PD901, and Selumetinib MEK inhibitors triggered growth restraint in all CCA cell lines tested, with the most pronounced growth suppressive effects being observed in K Ras mutant cells. Growth inhibition was due to reduction in proliferation and massive apoptosis. Furthermore, treatment of K-Ras/NICD tumor-bearing mice with PD901 resulted in stable disease. At the molecular level, PD901 efficiently inhibited ERK activation in K-Ras/NICD tumor cells, mainly leading to increased apoptosis. Altogether, our study demonstrates that K-Ras/NICD mice represent a novel and useful preclinical model to study K-Ras-driven iCCA development and the effectiveness of MEK inhibitors in counteracting this process. Our data support the usefulness of MEK inhibitors for the treatment of human iCCA. PMID- 29348468 TI - The potential impact of invasive woody oil plants on protected areas in China under future climate conditions. AB - Biodiesel produced from woody oil plants is considered a green substitute for fossil fuels. However, a potential negative impact of growing woody oil plants on a large scale is the introduction of highly invasive species into susceptible regions. In this study, we examined the potential invasion risk of woody oil plants in China's protected areas under future climate conditions. We simulated the current and future potential distributions of three invasive woody oil plants, Jatropha curcas, Ricinus communis, and Aleurites moluccana, under two climate change scenarios (RCP2.6 and RCP8.5) up to 2050 using species distribution models. Protected areas in China that will become susceptible to these species were then identified using a spatial overlay analysis. Our results showed that by 2050, 26 and 41 protected areas would be threatened by these invasive woody oil plants under scenarios RCP2.6 and RCP8.5, respectively. A total of 10 unique forest ecosystems and 17 rare plant species could be potentially affected. We recommend that the invasive potential of woody oil plants be fully accounted for when developing forest-based biodiesel, especially around protected areas. PMID- 29348469 TI - Treprostinil inhibits proliferation and extracellular matrix deposition by fibroblasts through cAMP activation. AB - Idiopathic pulmonary fibrosis (IPF) is characterized by peripheral lung fibrosis and increased interstitial extracellular matrix (ECM) deposition. In IPF, tumor growth factor (TGF)-beta1 which is the major stimulus of ECM deposition, and platelet derived growth factor (PDGF)-BB is a potent stimulus of fibrosis. Thus, the effect of Treprostinil on TGF-beta1 and PDGF-induced fibroblast proliferation and ECM deposition was investigated. Human peripheral lung fibroblasts of seven IPF patients and five lung donors were stimulated by PDGF, or TGF-beta1, or the combination. Cells were pre-incubated (30 min) with either Treprostinil, forskolin, di-deoxyadenosine (DDA), or vehicle. Treprostinil time dependently activated cAMP thereby preventing PDGF-BB induced proliferation and TGF-beta1 secretion. Cell counts indicated proliferation; alpha-smooth muscle actin (alpha SMA) indicted differentiation, and collagen type-1 or fibronectin deposition remodeling. Myo-fibroblast indicating alpha-SMA expression was significantly reduced and its formation was altered by Treprostinil. Collagen type-I and fibronectin deposition were also reduced by Treprostinil. The effect of Treprostinil on collagen type-I deposition was cAMP sensitive as it was counteracted by DDA, while the effect on fibronectin was not cAMP mediated. Treprostinil antagonized the pro-fibrotic effects of both PDGF-BB and TGF-beta1 in primary human lung fibroblasts. The data presented propose a therapeutic relevant anti-fibrotic effect of Treprostinil in IPF. PMID- 29348470 TI - Fibroblast growth factor 21 increases insulin sensitivity through specific expansion of subcutaneous fat. AB - Although the pharmacological effects of fibroblast growth factor 21 (FGF21) are well-documented, uncertainty about its role in regulating excessive energy intake remains. Here, we show that FGF21 improves systemic insulin sensitivity by promoting the healthy expansion of subcutaneous adipose tissue (SAT). Serum FGF21 levels positively correlate with the SAT area in insulin-sensitive obese individuals. FGF21 knockout mice (FGF21KO) show less SAT mass and are more insulin-resistant when fed a high-fat diet. Replenishment of recombinant FGF21 to a level equivalent to that in obesity restores SAT mass and reverses insulin resistance in FGF21KO, but not in adipose-specific betaklotho knockout mice. Moreover, transplantation of SAT from wild-type to FGF21KO mice improves insulin sensitivity in the recipients. Mechanistically, circulating FGF21 upregulates adiponectin in SAT, accompanied by an increase of M2 macrophage polarization. We propose that elevated levels of endogenous FGF21 in obesity serve as a defense mechanism to protect against systemic insulin resistance. PMID- 29348471 TI - Three Dimensional Evaluation of Posterior Pole and Optic Nerve Head in Tilted Disc. AB - For over a century, tilted disc syndrome (TDS) has been defined vaguely. The lack of consensus of the terminology arises from the lack of understanding of the pathogenesis of this condition. Also, myopic discs with temporal crescents or peripapillary atrophy (PPA) are histologically indistinguishable from TDS. Therefore, we examined the morphological background of the extreme ONH appearances such as the myopic tilted disc and the TDS by analyzing the posterior segment of the eye from a three-dimensional (3D) perspective. 107 eyes of 107 subjects were classified into 3 groups with respect to the optic disc torsion degrees: (1) mild torsion (0-30 degrees; 35 eyes) and (2) moderate torsion (30-60 degrees; 35 eyes) and (3) severe torsion (60-90 degrees; 37 eyes). SSOCT images were analyzed in coronal view, which supplements anterior-posterior depth (z axis in Cartesian coordinates). The amount of optic disc torsion was significantly correlated with Disc-DPE angle and Fovea-Disc depth (r = 0.548, P < 0.001 and r = 0.544, P < 0.001). In conclusion, we describe specific types of posterior sclera configuration that corresponds to the increasing degree of optic disc torsion, even in the extreme ONH appearances such as the myopic tilted disc and the TDS. These findings suggest that the optic disc appearance is determined by the configuration of the posterior sclera. PMID- 29348473 TI - Gene therapy: Autoimmune diabetes reversed in mice. PMID- 29348474 TI - Adrenal disease: Imitating the cortisol profile improves the immune system. PMID- 29348472 TI - Viral highway to nucleus exposed by image correlation analyses. AB - Parvoviral genome translocation from the plasma membrane into the nucleus is a coordinated multistep process mediated by capsid proteins. We used fast confocal microscopy line scan imaging combined with image correlation methods including auto-, pair- and cross-correlation, and number and brightness analysis, to study the parvovirus entry pathway at the single-particle level in living cells. Our results show that the endosome-associated movement of virus particles fluctuates from fast to slow. Fast transit of single cytoplasmic capsids to the nuclear envelope is followed by slow movement of capsids and fast diffusion of capsid fragments in the nucleoplasm. The unique combination of image analyses allowed us to follow the fate of intracellular single virus particles and their interactions with importin beta revealing previously unknown dynamics of the entry pathway. PMID- 29348475 TI - Osteoporosis: Community-based screening reduces hip fracture risk. PMID- 29348477 TI - Thyroid cancer: Balancing benefit and risk in TSH management of DTC. PMID- 29348478 TI - Metabolism: Leptin's role in starvation. PMID- 29348479 TI - Prime-boost vaccination with recombinant protein and adenovirus-vector expressing Plasmodium vivax circumsporozoite protein (CSP) partially protects mice against Pb/Pv sporozoite challenge. AB - Vaccine development against Plasmodium vivax malaria lags behind that for Plasmodium falciparum. To narrow this gap, we administered recombinant antigens based on P. vivax circumsporozoite protein (CSP) to mice. We expressed in Pichia pastoris two chimeric proteins by merging the three central repeat regions of different CSP alleles (VK210, VK247, and P. vivax-like). The first construct (yPvCSP-AllFL) contained the fused repeat regions flanked by N- and C-terminal regions. The second construct (yPvCSP-AllCT) contained the fused repeat regions and the C-terminal domain, plus RI region. Mice were vaccinated with three doses of yPvCSP in adjuvants Poly (I:C) or Montanide ISA720. We also used replication defective adenovirus vectors expressing CSP of human serotype 5 (AdHu5) and chimpanzee serotype 68 (AdC68) for priming mice which were subsequently boosted twice with yPvCSP proteins in Poly (I:C) adjuvant. Regardless of the regime used, immunized mice generated high IgG titres specific to all CSP alleles. After challenge with P. berghei ANKA transgenic parasites expressing Pb/PvVK210 or Pb/PvVK247 sporozoites, significant time delays for parasitemia were observed in all vaccinated mice. These vaccine formulations should be clinically tried for their potential as protective universal vaccine against P. vivax malaria. PMID- 29348480 TI - Association between plasma concentrations of branched-chain amino acids and adipokines in Japanese adults without diabetes. AB - Previous studies have consistently reported an association between circulating levels of branched-chain amino acids (BCAAs) or adipokines and insulin resistance; however, the association between BCAA and adipokine levels remains to be clarified. In this cross-sectional study involving 678 participants (435 men) without diabetes, plasma BCAA (valine, leucine, and isoleucine), adipokine (total and high molecular weight [HMW] adiponectin, leptin, and tumor necrosis factor alpha [TNF-alpha]) concentrations, and an updated homeostasis model assessment of insulin resistance (HOMA2-IR) were measured. The association between the concentrations of total BCAAs and adipokines was adjusted for confounding factors, including body mass index. For the lowest and highest BCAA quartiles, the adjusted geometric mean levels of HMW adiponectin were, respectively, 1.51 and 0.91 MUg/mL, in men (P for trend < 0.0001); 3.61 and 2.29 MUg/mL, in women (P = 0.0005). The corresponding geometric mean levels for leptin were 1681 and 2620 pg/mL, in men (P = 0.003), and 4270 and 6510 pg/mL, in women (P = 0.003). Those for HOMA2-IR were 0.89 and 1.11, in men (P < 0.0001), and 0.79 and 0.96, in women (P < 0.0001); no significant association was found with TNF-alpha. These results suggest significant associations between BCAA concentrations and those for adiponectin, leptin and HOMA2-IR in individuals without diabetes. PMID- 29348481 TI - Effects of graphene intercalation on dielectric reliability of HfO2 and modulation of effective work function for Ni/Gr/c-HfO2 interfaces: first principles study. AB - We have investigated the effects of graphene intercalation on dielectric reliability of HfO2 for Ni/Gr/HfO2 interfaces, and the effects of graphene intercalation and interfacial atom vacancy on the effective work function (EWF) of Ni/Gr/HfO2 interfaces using first-principle calculation based on density functional theory. The calculated results indicate that graphene intercalation can improve dielectric reliability of HfO2 dielectric even for the interfaces having interfacial oxygen vacancy or a small amount carbon vacancy. Moreover, the calculated results indicate that, inserting graphene into Ni/HfO2 interface induces the EWF's to decline, and controlling interfacial oxygen or carbon vacancy can effectively tune the EWF of Ni/Gr/HfO2 interface. Our work strongly suggests that the use of graphene synthesized into Ni/HfO2 interface is a very effective way to improve the interface quality, and controlling interfacial oxygen or carbon vacancy is also an attractive and promising way for modulating the EWF of Ni/Gr/HfO2 interfaces. PMID- 29348476 TI - Animal models of obesity and diabetes mellitus. AB - More than one-third of the worldwide population is overweight or obese and therefore at risk of developing type 2 diabetes mellitus. In order to mitigate this pandemic, safer and more potent therapeutics are urgently required. This necessitates the continued use of animal models to discover, validate and optimize novel therapeutics for their safe use in humans. In order to improve the transition from bench to bedside, researchers must not only carefully select the appropriate model but also draw the right conclusions. In this Review, we consolidate the key information on the currently available animal models of obesity and diabetes and highlight the advantages, limitations and important caveats of each of these models. PMID- 29348482 TI - EGFR activation triggers cellular hypertrophy and lysosomal disease in NAGLU depleted cardiomyoblasts, mimicking the hallmarks of mucopolysaccharidosis IIIB. AB - Mucopolysaccharidosis (MPS) IIIB is an inherited lysosomal storage disease caused by the deficiency of the enzyme alpha-N-acetylglucosaminidase (NAGLU) required for heparan sulfate (HS) degradation. The defective lysosomal clearance of undigested HS results in dysfunction of multiple tissues and organs. We recently demonstrated that the murine model of MPS IIIB develops cardiac disease, valvular abnormalities, and ultimately heart failure. To address the molecular mechanisms governing cardiac dysfunctions in MPS IIIB, we generated a model of the disease by silencing NAGLU gene expression in H9C2 rat cardiomyoblasts. NAGLU-depleted H9C2 exhibited accumulation of abnormal lysosomes and a hypertrophic phenotype. Furthermore, we found the specific activation of the epidermal growth factor receptor (EGFR), and increased phosphorylation levels of extracellular signal regulated kinases (ERKs) in NAGLU-depleted H9C2. The inhibition of either EGFR or ERKs, using the selective inhibitors AG1478 and PD98059, resulted in the reduction of both lysosomal aberration and hypertrophy in NAGLU-depleted H9C2. We also found increased phosphorylation of c-Src and a reduction of the hypertrophic response in NAGLU-depleted H9C2 transfected with a dominant-negative c-Src. However, c-Src phosphorylation remained unaffected by AG1478 treatment, posing c Src upstream EGFR activation. Finally, heparin-binding EGF-like growth factor (HB EGF) protein was found overexpressed in our MPS IIIB cellular model, and its silencing reduced the hypertrophic response. These results indicate that both c Src and HB-EGF contribute to the hypertrophic phenotype of NAGLU-depleted cardiomyoblasts by synergistically activating EGFR and subsequent signaling, thus suggesting that EGFR pathway inhibition could represent an effective therapeutic approach for MPS IIIB cardiac disease. PMID- 29348483 TI - Cell Type-Specific Survey of Epigenetic Modifications by Tandem Chromatin Immunoprecipitation Sequencing. AB - The nervous system of higher eukaryotes is composed of numerous types of neurons and glia that together orchestrate complex neuronal responses. However, this complex pool of cells typically poses analytical challenges in investigating gene expression profiles and their epigenetic basis for specific cell types. Here, we developed a novel method that enables cell type-specific analyses of epigenetic modifications using tandem chromatin immunoprecipitation sequencing (tChIP-Seq). FLAG-tagged histone H2B, a constitutive chromatin component, was first expressed in Camk2a-positive pyramidal cortical neurons and used to purify chromatin in a cell type-specific manner. Subsequent chromatin immunoprecipitation using antibodies against H3K4me3-a chromatin modification mainly associated with active promoters-allowed us to survey the histone modifications in Camk2a-positive neurons. Indeed, tChIP-Seq identified hundreds of H3K4me3 modifications in promoter regions located upstream of genes associated with neuronal functions and genes with unknown functions in cortical neurons. tChIP-Seq provides a versatile approach to investigating the epigenetic modifications of particular cell types in vivo. PMID- 29348484 TI - Activation of Ca2+-sensing receptor as a protective pathway to reduce Cadmium induced cytotoxicity in renal proximal tubular cells. AB - Cadmium (Cd), as an extremely toxic metal could accumulate in kidney and induce renal injury. Previous studies have proved that Cd impact on renal cell proliferation, autophagy and apoptosis, but the detoxification drugs and the functional mechanism are still in study. In this study, we used mouse renal tubular epithelial cells (mRTECs) to clarify Cd-induced toxicity and signaling pathways. Moreover, we proposed to elucidate the prevent effect of activation of Ca2+ sensing receptor (CaSR) by Calcimimetic (R-467) on Cd-induced cytotoxicity and underlying mechanisms. Cd induced intracellular Ca2+ elevation through phospholipase C-inositol 1, 4, 5-trisphosphate (PLC) followed stimulating p38 mitogen-activated protein kinases (MAPK) activation and suppressing extracellular signal-regulated kinase (ERK) activation, which leaded to increase apoptotic cell death and inhibit cell proliferation. Cd induced p38 activation also contribute to autophagic flux inhibition that aggravated Cd induced apoptosis. R-467 reinstated Cd-induced elevation of intracellular Ca2+ and apoptosis, and it also increased cell proliferation and restored autophagic flux by switching p38 to ERK pathway. The identification of the activation of CaSR-mediated protective pathway in renal cells sheds light on a possible cellular protective mechanism against Cd induced kidney injury. PMID- 29348486 TI - Phase I dose-escalation study of copanlisib in combination with gemcitabine or cisplatin plus gemcitabine in patients with advanced cancer. AB - BACKGROUND: Copanlisib is a pan-class I phosphatidylinositol 3-kinase (PI3K) inhibitor with predominant PI3K-alpha/delta activity that has demonstrated clinical activity and manageable safety when administered as monotherapy in a phase II study. Combination therapy may overcome compensatory signalling that could occur with PI3K pathway inhibition, resulting in enhanced inhibitory activity, and preclinical studies of copanlisib with gemcitabine have demonstrated potent anti-tumour activity in vivo. METHODS: A phase I, open-label, dose-escalation study to evaluate the safety, tolerability and recommended phase II dose (RP2D) of copanlisib with gemcitabine or with cisplatin plus gemcitabine (CisGem) in patients with advanced malignancies, including an expansion cohort in patients with biliary tract cancer (BTC) at the RP2D of copanlisib plus CisGem. Copanlisib and gemcitabine were administered on days 1, 8 and 15 of a 28-day cycle; maximum tolerated dose (MTD) and RP2D of copanlisib were determined. Copanlisib plus CisGem was administered on days 1 and 8 of a 21-day cycle; pharmacokinetics and biomarkers were assessed. RESULTS: Fifty patients received treatment as follows: dose-escalation cohorts, n=16; copanlisib plus CisGem cohort, n=14; and BTC expansion cohort, n=20. Copanlisib 0.8 mg kg-1 plus gemcitabine was the MTD and RP2D for both combinations. Common treatment-emergent adverse events included nausea (86%), hyperglycaemia (80%) and decreased platelet count (80%). Copanlisib exposure displayed a dose-proportional increase. No differences were observed upon co-administration of CisGem. Response rates were as follows: copanlisib plus gemcitabine, 6.3% (one partial response in a patient with peritoneal carcinoma); copanlisib plus CisGem, 12% (one complete response and three partial responses all in patients with BTC (response rate 17.4% in patients with BTC)). Mutations were detected in PIK3CA (1 out of 43), KRAS (10 out of 43) and BRAF (2 out of 22), with phosphate and tensin homologue protein loss in 41% (12 out of 29). CONCLUSIONS: Copanlisib plus CisGem demonstrated a manageable safety profile, favourable pharmacokinetics, and potentially promising clinical response. PMID- 29348485 TI - Motor signatures of emotional reactivity in frontotemporal dementia. AB - Automatic motor mimicry is essential to the normal processing of perceived emotion, and disrupted automatic imitation might underpin socio-emotional deficits in neurodegenerative diseases, particularly the frontotemporal dementias. However, the pathophysiology of emotional reactivity in these diseases has not been elucidated. We studied facial electromyographic responses during emotion identification on viewing videos of dynamic facial expressions in 37 patients representing canonical frontotemporal dementia syndromes versus 21 healthy older individuals. Neuroanatomical associations of emotional expression identification accuracy and facial muscle reactivity were assessed using voxel based morphometry. Controls showed characteristic profiles of automatic imitation, and this response predicted correct emotion identification. Automatic imitation was reduced in the behavioural and right temporal variant groups, while the normal coupling between imitation and correct identification was lost in the right temporal and semantic variant groups. Grey matter correlates of emotion identification and imitation were delineated within a distributed network including primary visual and motor, prefrontal, insular, anterior temporal and temporo-occipital junctional areas, with common involvement of supplementary motor cortex across syndromes. Impaired emotional mimesis may be a core mechanism of disordered emotional signal understanding and reactivity in frontotemporal dementia, with implications for the development of novel physiological biomarkers of socio-emotional dysfunction in these diseases. PMID- 29348487 TI - H1/pHGFK1 nanoparticles exert anti-tumoural and radiosensitising effects by inhibition of MET in glioblastoma. AB - BACKGROUND: The therapeutic resistance to ionising radiation (IR) and anti angiogenesis mainly impair the prognosis of patients with glioblastoma. The primary and secondary MET aberrant activation is one crucial factor for these resistances. The kringle 1 domain of hepatocyte growth factor (HGFK1), an angiogenic inhibitor, contains a high-affinity binding domain of MET; however, its effects on glioblastoma remain elusive. METHODS: We formed the nanoparticles consisting of a folate receptor-targeted nanoparticle-mediated HGFK1 gene (H1/pHGFK1) and studied its anti-tumoural and radiosensitive activities in both subcutaneous and orthotopic human glioma cell-xenografted mouse models. We then elucidated its molecular mechanisms in human glioblastoma cell lines in vitro. RESULTS: We demonstrated for the first time that peritumoural injection of H1/pHGFK1 nanoparticles significantly inhibited tumour growth and prolonged survival in tumour-bearing mice, as well as enhanced the anti-tumoural efficacies of IR in vivo by reducing Ki-67 expression, enhancing TUNEL staining-indicated apoptotic indexes, reducing microvascular intensity and reversing IR-induced MET overexpression in tumour tissues. Furthermore, we showed that HGFK1 suppressed the proliferation and induced cell apoptosis and enhanced sensitivity to IR in glioblastoma cell lines, mainly by suppressing the activities of MET receptor, down-regulating ATM-Chk2 axis but up-regulating Chk1. CONCLUSIONS: H1/pHGFK1 exerts anti-tumoural and radiosensitive activities mainly through the inhibition and reversal of IR-induced MET and ATM-Chk2 axis activities in glioblastoma. H1/pHGFK1 nanoparticles are a potential radiosensitiser and angiogenic inhibitor for glioblastoma treatment. PMID- 29348488 TI - Interferon-alpha enhances the antitumour activity of EGFR-targeted therapies by upregulating RIG-I in head and neck squamous cell carcinoma. AB - BACKGROUND: The epidermal growth factor receptor (EGFR)-targeted therapies have been tested in the clinic as treatments for head and neck squamous cell carcinoma (HNSCC). Owing to intrinsic or acquired resistance, EGFR-targeted therapies often lead to a low response rate and treatment failure. Interferon-alpha (IFNalpha) is a chemosensitising agent and multi-functional cytokine with a tumour inhibitory effect. However, the synergic effect of IFNalpha and EGFR-targeted therapies (erlotinib and nimotuzumab) and their mechanisms in HNSCC remain unclear. METHODS: The interactions between IFNalpha, erlotinib, and nimotuzumab were evaluated in vitro in HNSCC cells. The synergistic effect of IFNalpha (20 000 IU per day, s.c.), erlotinib (50 mg kg-1 per day, i.g.) and nimotuzumab (10 mg kg-1 per day, i.p.) was further confirmed in vivo using HNSCC xenografts in nude mice. The upregulation of retinoic-acid inducible gene I (RIG-I) induced by IFNalpha and EGFR-targeted therapies and its mechanism were detected in vitro and in vivo. RESULTS: IFNalpha enhances the antitumour effects of erlotinib and nimotuzumab on HNSCC cells both in vitro and in vivo. Importantly, both IFNalpha and EGFR targeted therapies promote the expression of RIG-I by activating signal transducers and activators of transcription 1 (STAT1) in HNSCC cells. RIG-I knockdown reduced the sensitivity of HN4 and HN30 cells to IFNalpha, erlotinib, and nimotuzumab. Moreover, IFNalpha transcriptionally induced RIG-I expression in HNSCC cells through STAT1. CONCLUSIONS: IFNalpha enhances the effect of EGFR targeted therapies by upregulating RIG-I, and its expression may represent a predictor of the effectiveness of a combination treatment including IFNalpha in HNSCC. PMID- 29348489 TI - Which patients are not included in the English Cancer Waiting Times monitoring dataset, 2009-2013? Implications for use of the data in research. AB - BACKGROUND: Cancer waiting time targets are routinely monitored in England, but the Cancer Waiting Times monitoring dataset (CWT) does not include all eligible patients, introducing scope for bias. METHODS: Data from adults diagnosed in England (2009-2013) with colorectal, lung, or ovarian cancer were linked from CWT to cancer registry, mortality, and Hospital Episode Statistics data. We present demographic characteristics and net survival for patients who were and were not included in CWT. RESULTS: A CWT record was found for 82% of colorectal, 76% of lung, and 77% of ovarian cancer patients. Patients not recorded in CWT were more likely to be in the youngest or oldest age groups, have more comorbidities, have been diagnosed through emergency presentation, have late or missing stage, and have much poorer survival. CONCLUSIONS: Researchers and policy-makers should be aware of the limitations in the completeness and representativeness of CWT, and draw conclusions with appropriate caution. PMID- 29348490 TI - Robot-assisted radical prostatectomy vs laparoscopic and open retropubic radical prostatectomy: functional outcomes 18 months after diagnosis from a national cohort study in England. AB - BACKGROUND: Robot-assisted radical prostatectomy (RARP) has been rapidly adopted without robust evidence comparing its functional outcomes against laparoscopic radical prostatectomy (LRP) or open retropubic radical prostatectomy (ORP) approaches. This study compared patient-reported functional outcomes following RARP, LRP or ORP. METHODS: All men diagnosed with prostate cancer in England during April - October 2014 who underwent radical prostatectomy were identified from the National Prostate Cancer Audit and mailed a questionnaire 18 months after diagnosis. Group differences in patient-reported sexual, urinary, bowel and hormonal function (EPIC-26 domain scores) and generic health-related quality of life (HRQoL; EQ-5D-5L scores), with adjustment for patient and tumour characteristics, were estimated using linear regression. RESULTS: In all, 2219 men (77.0%) responded; 1310 (59.0%) had RARP, 487 (21.9%) LRP and 422 (19.0%) ORP. RARP was associated with slightly higher adjusted mean EPIC-26 sexual function scores compared with LRP (3.5 point difference; 95% CI: 1.1-5.9, P=0.004) or ORP (4.0 point difference; 95% CI: 1.5-6.5, P=0.002), which did not meet the threshold for a minimal clinically important difference (10-12 points). There were no significant differences in other EPIC-26 domain scores or HRQoL. CONCLUSIONS: It is unlikely that the rapid adoption of RARP in the English NHS has produced substantial improvements in functional outcomes for patients. PMID- 29348491 TI - Order enables efficient electron-hole separation at an organic heterojunction with a small energy loss. AB - Donor-acceptor organic solar cells often show low open-circuit voltages (V OC) relative to their optical energy gap (E g) that limit power conversion efficiencies to ~12%. This energy loss is partly attributed to the offset between E g and that of intermolecular charge transfer (CT) states at the donor-acceptor interface. Here we study charge generation occurring in PIPCP:PC61BM, a system with a very low driving energy for initial charge separation (E g-E CT ~ 50 meV) and a high internal quantum efficiency (eta IQE ~ 80%). We track the strength of the electric field generated between the separating electron-hole pair by following the transient electroabsorption optical response, and find that while localised CT states are formed rapidly (<100 fs) after photoexcitation, free charges are not generated until 5 ps after photogeneration. In PIPCP:PC61BM, electronic disorder is low (Urbach energy <27 meV) and we consider that free charge separation is able to outcompete trap-assisted non-radiative recombination of the CT state. PMID- 29348492 TI - v-Src-driven transformation is due to chromosome abnormalities but not Src mediated growth signaling. AB - v-Src is the first identified oncogene product and has a strong tyrosine kinase activity. Much of the literature indicates that v-Src expression induces anchorage-independent and infinite cell proliferation through continuous stimulation of growth signaling by v-Src activity. Although all of v-Src expressing cells are supposed to form transformed colonies, low frequencies of v Src-induced colony formation have been observed so far. Using cells that exhibit high expression efficiencies of inducible v-Src, we show that v-Src expression causes cell-cycle arrest through p21 up-regulation despite ERK activation. v-Src expression also induces chromosome abnormalities and unexpected suppression of v Src expression, leading to p21 down-regulation and ERK inactivation. Importantly, among v-Src-suppressed cells, only a limited number of cells gain the ability to re-proliferate and form transformed colonies. Our findings provide the first evidence that v-Src-driven transformation is attributed to chromosome abnormalities, but not continuous stimulation of growth signaling, possibly through stochastic genetic alterations. PMID- 29348493 TI - DNA multi-bit non-volatile memory and bit-shifting operations using addressable electrode arrays and electric field-induced hybridization. AB - DNA has been employed to either store digital information or to perform parallel molecular computing. Relatively unexplored is the ability to combine DNA-based memory and logical operations in a single platform. Here, we show a DNA tri-level cell non-volatile memory system capable of parallel random-access writing of memory and bit shifting operations. A microchip with an array of individually addressable electrodes was employed to enable random access of the memory cells using electric fields. Three segments on a DNA template molecule were used to encode three data bits. Rapid writing of data bits was enabled by electric field induced hybridization of fluorescently labeled complementary probes and the data bits were read by fluorescence imaging. We demonstrated the rapid parallel writing and reading of 8 (23) combinations of 3-bit memory data and bit shifting operations by electric field-induced strand displacement. Our system may find potential applications in DNA-based memory and computations. PMID- 29348494 TI - Diurnal cycle and seasonal variation of cloud cover over the Tibetan Plateau as determined from Himawari-8 new-generation geostationary satellite data. AB - Analysis of cloud cover and its diurnal variation over the Tibetan Plateau (TP) is highly reliant on satellite data; however, the accuracy of cloud detection from both polar-orbiting and geostationary satellites over this area remains unclear. The new-generation geostationary Himawari-8 satellites provide high resolution spatial and temporal information about clouds over the Tibetan Plateau. In this study, the cloud detection of MODIS and AHI is investigated and validated against CALIPSO measurements. For AHI and MODIS, the false alarm rate of AHI and MODIS in cloud identification over the TP was 7.51% and 1.94%, respectively, and the cloud hit rate was 73.55% and 80.15%, respectively. Using hourly cloud-cover data from the Himawari-8 satellites, we found that at the monthly scale, the diurnal cycle in cloud cover over the TP tends to increase throughout the day, with the minimum and maximum cloud fractions occurring at 10:00 a.m. and 18:00 p.m. local time. Due to the limited time resolution of polar orbiting satellites, the underestimation of MODIS daytime average cloud cover is approximately 4.00% at the annual scale, with larger biases during the spring (5.40%) and winter (5.90%). PMID- 29348495 TI - Preclinical evaluation of antitumor activity of the proteasome inhibitor MLN2238 (ixazomib) in hepatocellular carcinoma cells. AB - Hepatocellular carcinoma (HCC) is one of the common malignancies and is an increasingly important cause of cancer death worldwide. Surgery, chemotherapy, and radiation therapy extend the 5-year survival limit in HCC patients by only 6%. Therefore, there is a need to develop new therapeutic approaches for the treatment of this disease. The orally bioavailable proteasome inhibitor MLN2238 (ixazomib) has been demonstrated to have anticancer activity. In the present study, we investigated the preclinical therapeutic efficacy of MLN2238 in HCC cells through in vitro and in vivo models, and examined its molecular mechanisms of action. MLN2238 inhibited cell viability in human HCC cells HepG2, Hep3B, and SNU475 in a time- and dose-dependent manner. Flow cytometry analysis demonstrated that MLN2238 induced G2/M cell cycle arrest and cellular apoptosis in HCC cells. Cell cycle arrest was associated with increased expression levels of p21 and p27. MLN2238-induced apoptosis was confirmed by caspase-3/7 activation, PARP cleavage and caspase-dependent beta-catenin degradation. In addition, MLN2238 activated ER stress genes in HCC cells and increased the expression of the stress-inducible gene nuclear protein-1. Furthermore, MLN2238 treatment induced upregulation of myeloid cell leukemia-1 (Mcl-1) protein, and Mcl-1 knockdown sensitized HCC cells to MLN2238 treatment, suggesting the contribution of Mcl-1 expression to MLN2238 resistance. This result was also confirmed using the novel Mcl-1 small molecule inhibitor A1210477. Association of A1210477 and MLN2238 determined synergistic antitumor effects in HCC cells. Finally, in vivo orally administered MLN2238 suppressed tumor growth of Hep3B cells in xenograft models in nude mice. In conclusion, our results offer hope for a new therapeutic opportunity in the treatment of HCC patients. PMID- 29348497 TI - RNA-binding proteins control gene expression and cell fate in the immune system. AB - RNA-binding proteins (RBPs) are essential for the development and function of the immune system. They interact dynamically with RNA to control its biogenesis and turnover by transcription-dependent and transcription-independent mechanisms. In this Review, we discuss the molecular mechanisms by which RBPs allow gene expression changes to occur at different speeds and to varying degrees, and which RBPs regulate the diversity of the transcriptome and proteome. These proteins are nodes for integration of transcriptional and signaling networks and are intimately linked to intermediary metabolism. They are essential components of regulatory feedback mechanisms that maintain immune tolerance and limit inflammation. The role of RBPs in malignancy and autoimmunity has led to their emergence as targets for the development of new therapeutic modalities. PMID- 29348498 TI - mTECs Aire on the side of caution. PMID- 29348496 TI - Natriuretic peptides promote glucose uptake in a cGMP-dependent manner in human adipocytes. AB - Robust associations between low plasma level of natriuretic peptides (NP) and increased risk of type 2 diabetes (T2D) have been recently reported in humans. Adipose tissue (AT) is a known target of NP. However it is unknown whether NP signalling in human AT relates to insulin sensitivity and modulates glucose metabolism. We here show in two European cohorts that the NP receptor guanylyl cyclase-A (GC-A) expression in subcutaneous AT was down-regulated as a function of obesity grade while adipose NP clearance receptor (NPRC) was up-regulated. Adipose GC-A mRNA level was down-regulated in prediabetes and T2D, and negatively correlated with HOMA-IR and fasting blood glucose. We show for the first time that NP promote glucose uptake in a dose-dependent manner. This effect is reduced in adipocytes of obese individuals. NP activate mammalian target of rapamycin complex 1/2 (mTORC1/2) and Akt signalling. These effects were totally abrogated by inhibition of cGMP-dependent protein kinase and mTORC1/2 by rapamycin. We further show that NP treatment favoured glucose oxidation and de novo lipogenesis independently of significant gene regulation. Collectively, our data support a role for NP in blood glucose control and insulin sensitivity by increasing glucose uptake in human adipocytes. This effect is partly blunted in obesity. PMID- 29348499 TI - ERAdP standing in the shadow of STING innate immune signaling. PMID- 29348502 TI - Stress-induced depression. PMID- 29348501 TI - Myocardial infarct inflammation. PMID- 29348503 TI - NKT cells aid antiviral responses. PMID- 29348500 TI - Myeloid-derived suppressor cells coming of age. AB - Myeloid-derived suppressor cells (MDSCs) are a heterogeneous population of cells generated during a large array of pathologic conditions ranging from cancer to obesity. These cells represent a pathologic state of activation of monocytes and relatively immature neutrophils. MDSCs are characterized by a distinct set of genomic and biochemical features, and can, on the basis of recent findings, be distinguished by specific surface molecules. The salient feature of these cells is their ability to inhibit T cell function and thus contribute to the pathogenesis of various diseases. In this Review, we discuss the origin and nature of these cells; their distinctive features; and their biological roles in cancer, infectious diseases, autoimmunity, obesity and pregnancy. PMID- 29348504 TI - Trials and Tribble-ations of tissue TRM cells. PMID- 29348505 TI - Antibiotics-immune system interactions. PMID- 29348506 TI - Macrophages: damage control. PMID- 29348507 TI - Stressed-out ROS take a silent death route. PMID- 29348508 TI - Adipose tissue TM cells. PMID- 29348509 TI - Triggering molecular assembly at the mesoscale for advanced Raman detection of proteins in liquid. AB - An advanced optofluidic system for protein detection based on Raman signal amplification via dewetting and molecular gathering within temporary mesoscale assemblies is presented. The evaporation of a microliter volume of protein solution deposited in a circular microwell precisely follows an outward-receding geometry. Herein the combination of liquid withdrawal with intermolecular interactions induces the formation of self-assembled molecular domains at the solid-liquid interface. Through proper control of the evaporation rate, amplitude of the assemblies and time for spectral collection at the liquid edge are extensively raised, resulting in a local enhancement and refinement of the Raman response, respectively. Further signal amplification is obtained by taking advantage of the intense local electromagnetic fields generated upon adding a plasmonic coating to the microwell. Major advantages of this optofluidic method lie in the obtainment of high-quality, high-sensitivity Raman spectra with detection limit down to sub-micromolar values. Peculiarly, the assembled proteins in the liquid edge region maintain their native-like state without displaying spectral changes usually occurring when dried drop deposits are considered. PMID- 29348510 TI - Genome and secretome analysis of Pochonia chlamydosporia provide new insight into egg-parasitic mechanisms. AB - Pochonia chlamydosporia infects eggs and females of economically important plant parasitic nematodes. The fungal isolates parasitizing different nematodes are genetically distinct. To understand their intraspecific genetic differentiation, parasitic mechanisms, and adaptive evolution, we assembled seven putative chromosomes of P. chlamydosporia strain 170 isolated from root-knot nematode eggs (~44 Mb, including 7.19% of transposable elements) and compared them with the genome of the strain 123 (~41 Mb) isolated from cereal cyst nematode. We focus on secretomes of the fungus, which play important roles in pathogenicity and fungus host/environment interactions, and identified 1,750 secreted proteins, with a high proportion of carboxypeptidases, subtilisins, and chitinases. We analyzed the phylogenies of these genes and predicted new pathogenic molecules. By comparative transcriptome analysis, we found that secreted proteins involved in responses to nutrient stress are mainly comprised of proteases and glycoside hydrolases. Moreover, 32 secreted proteins undergoing positive selection and 71 duplicated gene pairs encoding secreted proteins are identified. Two duplicated pairs encoding secreted glycosyl hydrolases (GH30), which may be related to fungal endophytic process and lost in many insect-pathogenic fungi but exist in nematophagous fungi, are putatively acquired from bacteria by horizontal gene transfer. The results help understanding genetic origins and evolution of parasitism-related genes. PMID- 29348511 TI - Resonant plasma excitation by single-cycle THz pulses. AB - In this paper, an alternative perspective for the generation of millimetric high gradient resonant plasma waves is discussed. This method is based on the plasma wave excitation by energetic single-cycle THz pulses whose temporal length is comparable to the plasma wavelength. The excitation regime discussed in this paper is the quasi-nonlinear regime that can be achieved when the normalized vector potential of the driving THz pulse is on the order of unity. To investigate this regime and determine the strength of the excited electric fields, a Particle-In-Cell (PIC) code has been used. It has been found that by exploiting THz pulses with characteristics currently available in laboratory, longitudinal electron plasma waves with electric gradients up to hundreds MV/m can be obtained. The mm-size nature of the resonant plasma wave can be of great utility for an acceleration scheme in which high-brightness electron bunches are injected into the wave to undergo a strong acceleration. The long-size nature of the acceleration bucket with respect to the short length of the electron bunches can be handled in a more robust manner in comparison with the case when micrometric waves are employed. PMID- 29348513 TI - Publisher Correction: Functionalized Non-vascular Nitinol Stent via Electropolymerized Polydopamine Thin Film Coating Loaded with Bortezomib Adjunct to Hyperthermia Therapy. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29348512 TI - CA1 and CA3 differentially support spontaneous retrieval of episodic contexts within human hippocampal subfields. AB - The hippocampus plays a critical role in spatial and episodic memory. Mechanistic models predict that hippocampal subfields have computational specializations that differentially support memory. However, there is little empirical evidence suggesting differences between the subfields, particularly in humans. To clarify how hippocampal subfields support human spatial and episodic memory, we developed a virtual reality paradigm where participants passively navigated through houses (spatial contexts) across a series of videos (episodic contexts). We then used multivariate analyses of high-resolution fMRI data to identify neural representations of contextual information during recollection. Multi-voxel pattern similarity analyses revealed that CA1 represented objects that shared an episodic context as more similar than those from different episodic contexts. CA23DG showed the opposite pattern, differentiating between objects encountered in the same episodic context. The complementary characteristics of these subfields explain how we can parse our experiences into cohesive episodes while retaining the specific details that support vivid recollection. PMID- 29348514 TI - 3D Imaging through Scatterers with Interferenceless Optical System. AB - Imaging through a scattering medium is a challenging task. We propose and demonstrate an interferenceless incoherent opto-digital technique for 3D imaging through a scatterer with a single lens and a digital camera. The light diffracted from a point object is modulated by a scattering mask. The modulated wavefront is projected on an image sensor using a spherical lens and the impulse response is recorded. An object is placed at the same axial location as the point object and another intensity pattern is recorded with identical experimental conditions and with the same scattering mask. The image of the object is reconstructed by a cross-correlation between a reconstructing function and the object hologram. For 3D imaging, a library of reconstructing functions are created corresponding to different axial locations. The different planes of the object are reconstructed by a cross-correlation of the object hologram with the corresponding reconstructing functions. PMID- 29348516 TI - Evidence of the Zanclean megaflood in the eastern Mediterranean Basin. AB - The Messinian salinity crisis (MSC) - the most abrupt, global-scale environmental change since the end of the Cretaceous - is widely associated with partial desiccation of the Mediterranean Sea. A major open question is the way normal marine conditions were abruptly restored at the end of the MSC. Here we use geological and geophysical data to identify an extensive, buried and chaotic sedimentary body deposited in the western Ionian Basin after the massive Messinian salts and before the Plio-Quaternary open-marine sedimentary sequence. We show that this body is consistent with the passage of a megaflood from the western to the eastern Mediterranean Sea via a south-eastern Sicilian gateway. Our findings provide evidence for a large amplitude drawdown in the Ionian Basin during the MSC, support the scenario of a Mediterranean-wide catastrophic flood at the end of the MSC, and suggest that the identified sedimentary body is the largest known megaflood deposit on Earth. PMID- 29348515 TI - Genetic evidence for panmixia in a colony-breeding crater lake cichlid fish. AB - Fine-scaled genetic structuring, as seen for example in many lacustrine fish, typically relates to the patterns of migration, habitat use, mating system or other ecological factors. Because the same processes can also affect the propensity of population differentiation and divergence, assessments of species from rapidly speciating clades, or with particularly interesting ecological traits, can be especially insightful. For this study, we assessed the spatial genetic relationships, including the genetic evidence for sex-biased dispersal, in a colony-breeding cichlid fish, Amphilophus astorquii, endemic to Crater Lake Apoyo in Nicaragua, using 11 polymorphic microsatellite loci (n = 123 individuals from three colonies). We found no population structure in A. astorquii either within colonies (no spatial genetic autocorrelation, r ~0), or at the lake-wide level (pairwise population differentiation FST = 0-0.013 and no clustering), and there was no sex-bias (male and female AIc values bounded 0) to this lack of genetic structure. These patterns may be driven by the colony-breeding reproductive behaviour of A. astorquii. The results suggest that strong philopatry or spatial assortative mating are unlikely to explain the rapid speciation processes associated with the history of this species in Lake Apoyo. PMID- 29348517 TI - NDRG2 contributes to cisplatin sensitivity through modulation of BAK-to-Mcl-1 ratio. AB - The downregulation of N-Myc downstream-regulated gene 2 (NDRG2) is known to be associated with the progression and poor prognosis of several cancers. Sensitivity to anti-cancer may be associated with a good prognosis in cancer patients, and NDRG2, which is induced by p53, sensitizes the cells to chemotherapy. However, the unique function of NDRG2 as an inducer of apoptosis under chemotreatment has not been sufficiently studied. In this study, we investigated the role of NDRG2 in chemo-sensitivity, focusing on cisplatin in U937 histiocytic lymphoma, which has the loss-of-functional mutation in p53. NDRG2 promoted the sensitivity to cisplatin through the modulation of the BAK-to Mcl-1 ratio. The degradation of Mcl-1 and increase in BAK were mediated by JNK activation and the eIF2alpha/p-eIF2alpha pathway, respectively, which depended on PKR activation in NDRG2-overexpressed U937 (U937-NDRG2) cells. NOX5 was highly expressed in U937-NDRG2 cells and contributed to ROS production after cisplatin treatment. ROS scavenging or NOX5-knockdown successfully inhibited the sensitivity of U937-NDRG2 cells to cisplatin. Taken together, these findings indicate that NDRG2 contributed to the increased sensitivity to ciplatin through the modulation of Bak-to-Mcl-1 ratio regulated by NOX5-ROS-PKR pathway; therefore, we suggest that NDRG2 may be a molecular target for improving the efficacy of drug treatment in cancer patients. PMID- 29348518 TI - Serum omega-3 Polyunsaturated Fatty Acids and Potential Influence Factors in Elderly Patients with Multiple Cardiovascular Risk Factors. AB - Recent clinical trials failed to demonstrate that omega-3 polyunsaturated fatty acid (PUFA) supplement reduced cardiovascular events, which contradicted previous evidence. However, serum omega-3 PUFA concentrations of participants remained unclear in those studies. We aimed to investigate the definite relationship between serum concentrations of omega-3 PUFAs and coronary artery disease (CAD), and to explore the potential influence factors of omega-3 PUFAs. We selected Chinese in-patients (n = 460) with multiple cardiovascular risk factors or an established diagnosis of CAD. Serum omega-3 PUFAs, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), were measured by liquid chromatography mass spectrometry. Serum concentrations of omega-3 PUFAs in CAD patients were lower than that in patients with cardiovascular risk factors. Furthermore, high serum DHA concentration was an independent protective factor of CAD after adjustment for confounding factors (OR: 0.52, p = 0.014). Alcohol intake (p = 0.036) and proton pump inhibitor (PPI) usage (p = 0.027) were associated with a decreased serum omega-3 PUFA concentration. We conclude that serum concentrations of omega-3 PUFAs may associate with a decreased CAD proportion, and DHA may serve as a protective factor of CAD. Serum omega-3 PUFA concentrations may be reduced by alcohol intake and certain drugs like PPIs. PMID- 29348520 TI - Discharge without alarm(s)! PMID- 29348519 TI - Guanylate Binding Protein 1 Inhibits Osteogenic Differentiation of Human Mesenchymal Stromal Cells Derived from Bone Marrow. AB - Guanylate Binding Proteins (GBPs) are a group of cytokine-inducible large guanosine triphosphatase. Previous studies have shown high expression of GBP1 in circulating monocytes of premenopausal subjects was correlated to extremely low peak bone mass, which is considered as an important determinant of osteoporosis. However, whether GBPs play a role in regulation of osteogenesis of mesenchymal stromal cells (MSCs) remains largely unknown. In the present study, we found that mRNA expression of GBP1 was highest among all the GBPs, and it was dramatically downregulated during osteogenic differentiation of human MSCs derived from bone marrow (hBM-MSCs). While siRNA-mediated knockdown of GBP1 promoted osteogenesis, overexpression of GBP1 suppressed osteogenesis of hBM-MSCs. Furthermore, we found GBP1 is required for expression of indoleamine 2,3 dioxygenase (IDO), Interleukin 6 (IL-6) and IL-8 induced by treatment with Interferon-gamma (IFN-gamma). Depletion of GBP1 rescued the inhibited osteogenesis induced by IFN-gamma treatment, at least in part. Collectively, our findings indicate GBP1 inhibits osteogenic differentiation of MSCs, and inhibition of GBP1 expression may prevent development of osteoporosis and facilitate MSC-based bone regeneration. PMID- 29348521 TI - JBIR-150, a novel 20-membered polyene macrolactam from marine-derived Streptomyces sp. OPMA00071. AB - During the course of constructing a natural product library for drug screening consisting of microbial culture extracts originated from marine samples, we evaluated natural product components profiles via UPLC TOF-MS and routine biological tests for cytotoxic and antibiotic activities for all of the culture extract samples. By combination of chemical screening and biological activities, we succeeded in discovering a 20-membered macrolactam antibiotic subsequently designated JBIR-150 (1) from a marine-derived actinomycete identified as Streptomyces sp. that was isolated from an Okinawan marine sediment. The chemical structure of 1 was determined by interpreting NMR spectroscopic and mass spectrometric data. Compound 1 exhibited moderate cytotoxicity against MESO-1 and Jurkat cells. PMID- 29348522 TI - In vitro and in vivo antimicrobial activity of TS2037, a novel aminoglycoside antibiotic. AB - To overcome serious methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa infections, we synthesized TS2037, 5,4"-diepi-arbekacin, a novel aminoglycoside antibiotic, and evaluated its biological properties. TS2037 showed broad-range, as well as robust antibacterial activities against Gram positive and Gram-negative bacteria. The MIC50 and MIC90 of TS2037 against clinical isolates of MRSA (n = 54) were both 0.25 ug/mL, and no resistant strain was observed. The MIC50 and MIC90 of TS2037 against clinical isolates of P. aeruginosa (n = 54) were 1 and 4 ug/mL, respectively. TS2037 and arbekacin, anti MRSA aminoglycoside, were more stable against AAC(6')-APH(2"), aminoglycoside-6' N-acetyltransferase and 2"-O-phosphotransferase, produced by resistant S. aureus than gentamicin. Therapeutic efficacies of TS2037 in the mouse models of systemic infection with MRSA were superior to those of arbekacin, vancomycin, and linezolid. The efficacy of TS2037 against systemic infection caused by P. aeruginosa producing AAC(6')-II was superior to those of arbekacin and amikacin. In the nephrotoxicity risk screening, the release of free N-acetyl-beta-D glucosaminidase from the kidney epithelial cell line after treatment with TS2037 at 2.5 and 5.0 MUM were 2.0 and 2.1 (U/L), respectively, which were about two times higher than those of arbekacin. In conclusion, TS2037 exhibited the most potent antibacterial activity among aminoglycosides tested against both MRSA and P. aeruginosa in vitro and in vivo, although its nephrotoxicity risk remains to be improved. PMID- 29348523 TI - Antibiotic resistance mutations induced in growing cells of Bacillus-related thermophiles. AB - Stress-induced mutagenesis can assist pathogens in generating drug-resistant cells during antibiotic therapy; however, if and how antibiotics induce mutagenesis in microbes remains poorly understood. A non-pathogenic thermophile, Geobacillus kaustophilus HTA426, efficiently produces derivative cells resistant to rifampicin and streptomycin via rpoB and rpsL mutations, respectively. Here, we examined this phenomenon to suggest a novel mutagenic mode induced by antibiotics. Fluctuation analysis indicated that mutations occurred via spontaneous mutations during culture. However, mutations were much more frequent in growing cells than stationary cells, and mutation sites were varied through cell growth. These observations suggested that growing cells induced mutagenesis in response to antibiotics. An in-frame deletion of mfd, which governs transcription-coupled repair to correct DNA lesions on the transcribed strand, caused mutations that were comparable between growing and stationary cells; therefore, the mutagenic mechanism was attributable to DNA repair defects where growing cells depressed mfd function. Mutations occurred more frequently at optimal growth temperatures for G. kaustophilus than at a higher growth temperature, suggesting that the mutagenesis relies on active cellular activities rather than high temperature-associated DNA damage. In addition, the mutagenesis may involve a mutagenic factor targeting these sites, in addition to mfd depression, because rpoB and rpsL mutations were dominant at thymine and guanine sites on the transcribed strand. A similar mutagenic profile was observed for other Geobacillus and thermophilic Bacillus species. This suggests that Bacillus related thermophiles commonly induce mutagenesis in response to rifampicin and streptomycin to produce resistant cells. PMID- 29348524 TI - Linearmycins are lytic membrane-targeting antibiotics. AB - The linearmycin family of polyketides was originally classified as antifungal metabolites. However, in addition to antifungal activity, we previously found that linearmycins cause cellular lysis and colony degradation of the Gram positive bacterium Bacillus subtilis. We recently showed that Streptomyces sp. strain Mg1 incorporates linearmycins into extracellular vesicles, which are capable of lysing B. subtilis. However, the mechanism of linearmycin-induced lysis was hitherto unexplored. Therefore, we sought to determine how linearmycin laden vesicles cause lysis. In this study, we found that linearmycins inhibited the growth of all Gram-positive bacteria that we tested, but lysis was limited to some Bacillus species. Next, we found that linearmycin-induced lysis occurred even when cellular metabolism and growth were inhibited, which suggested that linearmycins possess the intrinsic capacity to lyse cells, unlike cell-wall targeting antibiotics. We showed that linearmycin exposure caused changes consistent with rapid depolarization of the B. subtilis cytoplasmic membrane, which was correlated with a loss of viability. Finally, using liposomes as in vitro membrane models, we demonstrated that linearmycins are capable of disrupting lipid bilayers without any other cellular components. Taken together, our results strongly indicate that the cytoplasmic membrane is the direct antibacterial target of linearmycins. PMID- 29348525 TI - Cordybislactone, a stereoisomer of the 14-membered bislactone clonostachydiol, from the hopper pathogenic fungus Cordyceps sp. BCC 49294: revision of the absolute configuration of clonostachydiol. AB - Cordybislactone (3), a new stereoisomer of the 14-membered bislactone clonostachydiol, together with its open ring analog (4), was isolated from the hopper pathogenic fungus Cordyceps sp. BCC 49294. The relative and absolute configurations of 3 were determined by chemical derivatizations, including the modified Mosher's method. The stereochemistry of clonostachydiol was determined using the natural compound isolated from Xylaria sp. BCC 4297. The result revealed that the absolute configuration of clonostachydiol, previously determined by synthesis, should be revised to its enantiomer. PMID- 29348526 TI - Prodigiosin R2, a new prodigiosin from the roseophilin producer Streptomyces griseoviridis 2464-S5. AB - Roseophilin (2) is a unique prodigiosin-related compound produced by Streptomyces griseoviridis 2464-S5, and is characterized by a central furan ring and a bicyclic alkyl chain. During a search for biosynthetic intermediates of 2, a new metabolite designated prodigiosin R2 (1) was isolated from the culture of the roseophilin producer. The molecular formula of 1 was established as C27H35N3O by high-resolution FAB-MS. The structure of 1 was determined by NMR spectroscopic analyses as a prodigiosin derivative with the same bicyclic alkyl chain as 2. Prodigiosin R2 (1) showed potent cytotoxicity against HeLa human cervical carcinoma cells and HT1080 human fibrosarcoma cells with IC50s of 0.41 and 0.82 MUM, respectively. PMID- 29348527 TI - The human muscarinic acetylcholine receptor antagonist, Dicyclomine targets signal transduction genes and inhibits the virulence factors in the human pathogen, Candida albicans. AB - Dicyclomine is a human muscarinic acetylcholine receptor antagonist used for the treatment of abdominal cramps. We are reporting here that dicyclomine can inhibit the in vitro growth and virulence factors of the human pathogen Candida albicans very effectively. Dicyclomine inhibited adhesion, early biofilm, mature biofilm, and planktonic growth. Yeast to hyphal form transition of C. albicans in various inducer media such as serum, proline, glucose, and N-acetylglucosamine was inhibited. Dicyclomine also could kill C. albicans cells within 15 min of exposure. Dicyclomine appears to inhibit the yeast to hyphal conversion by affecting signal transduction pathway. The expression of selected genes associated with yeast to hyphal form transition in serum in presence of dicyclomine was studied using real-time polymerase chain reaction (RtPCR). The RtPCR analysis showed that dicyclomine targets both cAMP pathway as well as MAPK cascade. Eight genes were upregulated. Out of these, three major upregulated genes were Bcy1, Tup1, and Mig1. Dicyclomine downregulated Ume6, Ece1, and Pde2 genes which are involved in cAMP signaling pathway and also downregulated the DNA binding protein gene, Rfg1. Dicyclomine significantly upregulated the master negative regulator of hyphal formation, Tup1. Based on this study we suggest that the muscarinic acetylcholine receptor antagonist, dicyclomine could be repositioned as a potential anti-Candida albicans as well as anti-virulence agent. PMID- 29348528 TI - Agrocin 108 is a 5'-cytidine nucleotide bacteriocin containing a carbocyclic phosphoryl-ascorbate group. AB - Agrocin 108 is a 3'-O-beta-D-xylopyranosyl-cytidine-5'-O-phosphodiester of an ascorbate-carbocyclic cyclopentenone analogue, with bacteriocin-like properties. This bacteriocin exhibits orders of magnitude greater than the inhibition zone diameter towards the indicator strain than either ampicillin or streptomycin. It has been isolated from cultures of Rhizobium rhizogenes strain K108. The structure of the agrocin 108 without detail, has been previously published. We now report a detailed structure elucidation, including the hitherto undetermined residual 5'-phospho-diester fragment by a combination of 1D and 2D NMR studies at various pH values in H2O/D2O, high resolution MS, pKa determination, and chemical degradation. PMID- 29348529 TI - Two new lankacidin-related metabolites from Streptomyces sp. HS-NF-1178. AB - Two new lankacidin-related metabolites, 2,18-seco-lankacidinol A (1), 2,18-seco lankacidinol B (2) and a known compound, lankacidinol (3), were isolated from the fermentation broth of Streptomyces sp. HS-NF-1178. Their structures were determined on the basis of spectroscopic analysis, including 1D and 2D NMR techniques as well as ESI-MS and comparison with data from the literature. These two new compounds, especially compound 1, exhibited potent antitumor activity. PMID- 29348530 TI - Time inside the mutant selection window as a predictor of staphylococcal resistance to linezolid. AB - To explore if the time inside the mutant selection window (TMSW) is a reliable predictor of emergence of bacterial resistance to linezolid, mixed inocula of each of three methicillin-resistant Staphylococcus aureus strains (MIC of linezolid 2 MUg ml-1) and their previously selected resistant mutants (MIC 8 MUg ml-1) were exposed to linezolid pharmacokinetics using an in vitro dynamic model. In five-day treatments simulated over a wide range of the 24-h area under the concentration-time curve (AUC24) to the MIC ratio, mutants resistant to 4 * MIC of antibiotic were enriched in a TMSW-dependent manner. With each strain, TMSW relationships with the area under the bacterial mutant concentration-time curve (AUBCM) exhibited a hysteresis loop, with the upper portion corresponding to the time above the mutant prevention concentration (MPC; T>MPC) of 0 and the lower portion-to the T>MPC > 0. Using AUBCM related to the maximal value observed with a given strain (normalized AUBCM) at T>MPC > 0, a strain-independent sigmoid relationship was established between AUBCM and TMSW, as well as T>MPC (r2 0.99 for both). AUC24/MIC and AUC24/MPC relationships with normalized AUBCM for combined data on the three studied S. aureus strains were bell-shaped (r2 0.85 and 0.80, respectively). These findings suggest that TMSW at T>MPC > 0, T>MPC, AUC24/MIC and AUC24/MPC are useful bacterial strain-independent predictors of the emergence of staphylococcal resistance to linezolid. PMID- 29348531 TI - Isopentylated diphenyl ether derivatives from the fermentation products of an endophytic fungus Phomopsis fukushii. AB - Three new isopentylated diphenyl ethers, (1-3), together with two known isopentylated diphenyl ethers derivatives (4 and 5) were isolated from the fermentation products of an endophytic fungus Phomopsis fukushii. Their structures were elucidated by spectroscopic methods, including extensive 1D- and 2D NMR techniques. Compounds 1-3 were evaluated for their anti-methicillin resistant Staphylococcus aureus (anti-MRSA) activity. The results showed that compounds 1-3 showed strong activity with diameter of inhibition zone (IZD) of 21.8 +/- 2.4 mm, 16.8 +/- 2.2 mm, and 15.6 +/- 2.0 mm, respectively. PMID- 29348533 TI - Structured thermal surface for radiative camouflage. AB - Thermal camouflage has been successful in the conductive regime, where thermal metamaterials embedded in a conductive system can manipulate heat conduction inside the bulk. Most reported approaches are background-dependent and not applicable to radiative heat emitted from the surface of the system. A coating with engineered emissivity is one option for radiative camouflage, but only when the background has uniform temperature. Here, we propose a strategy for radiative camouflage of external objects on a given background using a structured thermal surface. The device is non-invasive and restores arbitrary background temperature distributions on its top. For many practical candidates of the background material with similar emissivity as the device, the object can thereby be radiatively concealed without a priori knowledge of the host conductivity and temperature. We expect this strategy to meet the demands of anti-detection and thermal radiation manipulation in complex unknown environments and to inspire developments in phononic and photonic thermotronics. PMID- 29348532 TI - Amygdala-orbitofrontal structural and functional connectivity in females with anxiety disorders, with and without a history of conduct disorder. AB - Conduct disorder (CD) and anxiety disorders (ADs) are often comorbid and both are characterized by hyper-sensitivity to threat, and reduced structural and functional connectivity between the amygdala and orbitofrontal cortex (OFC). Previous studies of CD have not taken account of ADs nor directly compared connectivity in the two disorders. We examined three groups of young women: 23 presenting CD and lifetime AD; 30 presenting lifetime AD and not CD; and 17 with neither disorder (ND). Participants completed clinical assessments and diffusion weighted and resting-state functional MRI scans. The uncinate fasciculus was reconstructed using tractography and manual dissection, and structural measures extracted. Correlations of resting-state activity between amygdala and OFC seeds were computed. The CD + AD and AD groups showed similarly reduced structural integrity of the left uncinate compared to ND, even after adjusting for IQ, psychiatric comorbidity, and childhood maltreatment. Uncinate integrity was associated with harm avoidance traits among AD-only women, and with the interaction of poor anger control and anxiety symptoms among CD + AD women. Groups did not differ in functional connectivity. Reduced uncinate integrity observed in CD + AD and AD-only women may reflect deficient emotion regulation in response to threat, common to both disorders, while other neural mechanisms determine the behavioral response. PMID- 29348534 TI - Anti-cancer activities of allyl isothiocyanate and its conjugated silicon quantum dots. AB - Allyl isothiocyanate (AITC), a dietary phytochemical in some cruciferous vegetables, exhibits promising anticancer activities in many cancer models. However, previous data showed AITC to have a biphasic effect on cell viability, DNA damage and migration in human hepatoma HepG2 cells. Moreover, in a 3D co culture of HUVEC with pericytes, it inhibited tube formation at high doses but promoted this at low doses, which confirmed its biphasic effect on angiogenesis. siRNA knockdown of Nrf2 and glutathione inhibition abolished the stimulation effect of AITC on cell migration and DNA damage. The biological activity of a novel AITC-conjugated silicon quantum dots (AITC-SiQDs) has been investigated for the first time. AITC-SiQDs showed similar anti-cancer properties to AITC at high doses while avoiding the low doses stimulation effect. In addition, AITC-SiQDs showed a lower and long-lasting activation of Nrf2 translocation into nucleus which correlated with their levels of cellular uptake, as detected by the intrinsic fluorescence of SiQDs. ROS production could be one of the mechanisms behind the anti-cancer effect of AITC-SiQDs. These data provide novel insights into the biphasic effect of AITC and highlight the application of nanotechnology to optimize the therapeutic potential of dietary isothiocyanates in cancer treatment. PMID- 29348535 TI - Umbilical cord extracts improve osteoporotic abnormalities of bone marrow-derived mesenchymal stem cells and promote their therapeutic effects on ovariectomised rats. AB - Bone marrow-derived mesenchymal stem cells (BM-MSCs) are the most valuable source of autologous cells for transplantation and tissue regeneration to treat osteoporosis. Although BM-MSCs are the primary cells responsible for maintaining bone metabolism and homeostasis, their regenerative ability may be attenuated in postmenopausal osteoporosis patients. Therefore, we first examined potential abnormalities of BM-MSCs in an oestrogen-deficient rat model constructed by ovariectomy (OVX-MSCs). Cell proliferation, mobilisation, and regulation of osteoclasts were downregulated in OVX-MSCs. Moreover, therapeutic effects of OVX MSCs were decreased in OVX rats. Accordingly, we developed a new activator for BM MSCs using human umbilical cord extracts, Wharton's jelly extract supernatant (WJS), which improved cell proliferation, mobilisation and suppressive effects on activated osteoclasts in OVX-MSCs. Bone volume, RANK and TRACP expression of osteoclasts, as well as proinflammatory cytokine expression in bone tissues, were ameliorated by OVX-MSCs activated with WJS (OVX-MSCs-WJ) in OVX rats. Fusion and bone resorption activity of osteoclasts were suppressed in macrophage-induced and primary mouse bone marrow cell-induced osteoclasts via suppression of osteoclast specific genes, such as Nfatc1, Clcn7, Atp6i and Dc-stamp, by co-culture with OVX MSCs-WJ in vitro. In this study, we developed a new activator, WJS, which improved the functional abnormalities and therapeutic effects of BM-MSCs on postmenopausal osteoporosis. PMID- 29348536 TI - Surround inhibition can instantly be modulated by changing the attentional focus. AB - To further investigate the mechanism of surround inhibition (SI) and to determine whether adopting different attentional strategies might have an impact on the modulation of SI, the effects of adopting an external (EF) or internal focus of attention (IF) on SI and motor performance were investigated. While performing an index flexion with either an EF or IF, transcranial magnetic stimulation was applied at various time points in 14 healthy subjects. When adopting an EF compared to an IF, the results show an improved motor performance (+14.7% in MVC) and a reduced bEMG in the adjacent APB (-22.3%) during maximal index flexion. This was accompanied by an increased SI in the APB with an EF (+26.4%). Additionally, the decrease in bEMG correlated with the magnitude of SI in APB. The current results demonstrate an efficient way to modulate SI by changing the attentional focus in healthy subjects and might, at least in part, explain the better motor performance being associated with an EF. The present findings help to better understand the positive mechanisms of an EF on SI in the healthy motor system and may also points towards a treatment strategy in pathologies with disturbed SI such as focal hand dystonia. PMID- 29348538 TI - Broadband wave plates made by plasmonic metamaterials. AB - Although metamaterials wave-plates have been demonstrated previously, many of them suffer from the issue of narrow bandwidth since they typically rely on resonance principles and thus exhibit inevitable frequency dispersions. Here, we show that the dispersion of spoof surface plasmon (SSP) mode supported by a fishbone structure can be freely modulated by varying the structural parameters. This motivates us to establish a general strategy of building broadband wave plates by cascading two fishbone structures with different propagation constants of SSP modes. We derive a criterion under which the cross-polarization phase difference across the whole device can maintain at a nearly constant value over a wide frequency band, with frequency dispersions in the two fishbone structures cancelled out. As an illustration, we design and fabricate an efficient microwave quarter-wave plate and experimentally characterize its excellent polarization control performances over a broad frequency band (7-9.2 GHz). Our findings can stimulate making dispersion-controlled high-performance optical functional devices in different frequency domains. PMID- 29348537 TI - Radionuclides transform chemotherapeutics into phototherapeutics for precise treatment of disseminated cancer. AB - Most cancer patients succumb to disseminated disease because conventional systemic therapies lack spatiotemporal control of their toxic effects in vivo, particularly in a complicated milieu such as bone marrow where progenitor stem cells reside. Here, we demonstrate the treatment of disseminated cancer by photoactivatable drugs using radiopharmaceuticals. An orthogonal-targeting strategy and a contact-facilitated nanomicelle technology enabled highly selective delivery and co-localization of titanocene and radiolabelled fluorodeoxyglucose in disseminated multiple myeloma cells. Selective ablation of the cancer cells was achieved without significant off-target toxicity to the resident stem cells. Genomic, proteomic and multimodal imaging analyses revealed that the downregulation of CD49d, one of the dimeric protein targets of the nanomicelles, caused therapy resistance in small clusters of cancer cells. Similar treatment of a highly metastatic breast cancer model using human serum albumin-titanocene formulation significantly inhibited cancer growth. This strategy expands the use of phototherapy for treating previously inaccessible metastatic disease. PMID- 29348539 TI - Characterization of a Novel Tectivirus Phage Toil and Its Potential as an Agent for Biolipid Extraction. AB - : The oleaginous bacterium Rhodococcus opacus PD630 is metabolically diverse and can be cultivated on various renewable resources to serve as a sustainable triacylglycerol (TAG) feedstock for biodiesel production. Current methods for TAG extraction are costly, but infection of cultures by lytic bacteriophages (phages) may be a viable approach for achieving release of intracellular lipid from oleaginous bacteria such as R. opacus. This study reports the novel tectiviral phage Toil capable of releasing intracellular contents including a fluorescent protein marker and TAGs into the supernatant after phage infection of R. opacus PD631, a domesticated derivative of strain PD630. Phage Toil is placed in the Tectiviridae by its morphology, the presence of a lipid membrane, its genome architecture and the presence of terminal covalently-linked proteins. Toil is the first tectivirus capable of infecting a member of the Actinobacteria. Microscopy shows that infected cells do not undergo sudden lysis but instead maintain their original shape for several hours, with the cellular morphology gradually deteriorating. Approximately 30% of intracellular TAGs could be recovered from the culture supernatants of Toil-infected PD631 cells. Phage Toil has potential to be used as an agent in extraction of TAGs from oleaginous bacterium R. opacus. IMPORTANCE: This study reported the first tectivirus (Phage Toil) capable of infecting a member of the Actinobacteria. In this study, we showed that Phage Toil can infect oleaginous bacterium Rhodococcus opacus to release intracellular contents such as a fluorescent protein marker and TAG lipid granules, which can serve as a starting material for biodiesel production. This study demonstrates a new method to extract TAGs by using this phage. Additionally, Phage Toil can be a new model phage to advance knowledge regarding phage infection mechanisms in Rhodococcus and other mycolic acid-containing bacteria such as Mycobacterium. PMID- 29348541 TI - Neurodegenerative disease: TDP pathology leads to nuclear disruption. PMID- 29348540 TI - Human colorectal cancer-derived mesenchymal stem cells promote colorectal cancer progression through IL-6/JAK2/STAT3 signaling. AB - Mesenchymal stem cells (MSCs) have been reported to localize in colorectal carcinomas, and participate in the formation of the tumor microenvironment. They have recently been isolated from colorectal cancer tissues, and are implicated in the growth, invasion, and metastasis of cancer cells. However, the roles and detailed mechanisms associated with human colorectal cancer-derived MSCs (CC MSCs) have not been fully addressed. In this study, we found that CC-MSCs increased the migration and invasion of colorectal cancer cells and promoted the tumorigenesis of colorectal cancer through epithelial-to-mesenchymal transition (EMT) in vitro. We also found that CC-MSCs enhanced the growth and metastasis of colorectal cancer in vivo. Mechanistically, we determined that interleukin-6 (IL 6) was the most highly expressed cytokine in the CC-MSC conditioned medium, and promoted the progression of colorectal cancer cells through IL-6/JAK2/STAT3 signaling, which activated PI3K/AKT signaling. We used anti-IL-6 antibody to target IL-6. Collectively, these results reveal that the IL-6 secreted by CC-MSCs enhances the progression of colorectal cancer cells through IL-6/JAK2/STAT3 signaling, and could provide a novel therapeutic or preventive target. PMID- 29348542 TI - Sensory systems: Bimodal cochlear nucleus stimulation alleviates tinnitus. PMID- 29348543 TI - Stroke in 2017: Intensive and extensive - advances in stroke management. PMID- 29348544 TI - Motor neuron disease: A prospective natural history study of type 1 spinal muscular atrophy. PMID- 29348545 TI - Motor neuron disease in 2017: Progress towards therapy in motor neuron disease. PMID- 29348546 TI - Epilepsy in 2017: Precision medicine drives epilepsy classification and therapy. PMID- 29348547 TI - High strength nanostructured Al-based alloys through optimized processing of rapidly quenched amorphous precursors. AB - We report the methods increasing both strength and ductility of aluminum alloys transformed from amorphous precursor. The mechanical properties of bulk samples produced by spark-plasma sintering (SPS) of amorphous Al-Ni-Co-Dy powders at temperatures above 673 K are significantly enhanced by in-situ crystallization of nano-scale intermetallic compounds during the SPS process. The spark plasma sintered Al84Ni7Co3Dy6 bulk specimens exhibit 1433 MPa compressive yield strength and 1773 MPa maximum strength together with 5.6% plastic strain, respectively. The addition of Dy enhances the thermal stability of primary fcc Al in the amorphous Al-TM -RE alloy. The precipitation of intermetallic phases by crystallization of the remaining amorphous matrix plays important role to restrict the growth of the fcc Al phase and contributes to the improvement of the mechanical properties. Such fully crystalline nano- or ultrafine-scale Al-Ni-Co Dy systems are considered promising for industrial application because their superior mechanical properties in terms of a combination of very high room temperature strength combined with good ductility. PMID- 29348548 TI - The global epidemiology of bladder cancer: a joinpoint regression analysis of its incidence and mortality trends and projection. AB - We tested the hypotheses that the global incidence of bladder cancer was increasing but its mortality was reducing and its incidence was positively correlated with country-specific socioeconomic development. We retrieved data on age-standardized incidence and mortality rates/100,000 from the GLOBOCAN database in 2012. Temporal patterns were examined for 39 countries from the Cancer Incidence in Five Continents volumes I-X and other national registries. We evaluated the correlation between the incidence/mortality rates and Human Development Index (HDI)/ logarithmic values of Gross Domestic Product per capita (GDP). The average annual percent change of the incidence and mortality rates in the most recent 10 years was examined by joinpoint regression analysis. The highest incidence rates were observed in Southern Europe, Western Europe and North America. The mortality rates were the highest in Western Asia and Northern Africa. The incidence was positively correlated with HDI (r = 0.66 [men]; r = 0.50 [women]) and to a lesser extent logarithmic values of GDP per capita (r = 0.60 [men]; r = 0.50 [women], all p < 0.01). Many European countries experienced incidence rise. A substantial mortality reduction was observed in most countries, yet increases in mortality rates were observed in the Philippines and Iceland. These findings identified countries where more preventive actions are required. PMID- 29348549 TI - Preoperative anemia in colorectal cancer: relationships with tumor characteristics, systemic inflammation, and survival. AB - Anemia is common in colorectal cancer (CRC) but its relationships with tumor characteristics, systemic inflammation, and survival have not been well characterized. In this study, blood hemoglobin levels and erythrocyte mean corpuscular volume (MCV) levels were measured in two independent cohorts of 148 CRC patients and 208 CRC patients, and their correlation with patient and tumor characteristics, systemic inflammatory markers (modified Glasgow Prognostic Score: mGPS; serum levels of thirteen cytokines, C-reactive protein, albumin), and survival were analyzed. We found that anemia, most frequently normocytic, followed by microcytic, was present in 43% of the patients. Microcytic anemia was most commonly associated with proximal colon tumor location. Average MCV and blood hemoglobin levels were lower in tumors with high T-class. Low blood hemoglobin associated with systemic inflammation, including high mGPS and high serum levels of C-reactive protein and IL-8. Particularly, normocytic anemia associated with higher mGPS. Normocytic anemia associated with a tendency towards worse overall survival (multivariate hazard ratio 1.61, 95% confidence interval 1.07-2.42, p = 0.023; borderline statistical significance considering multiple hypothesis testing). In conclusion, anemia in CRC patients is most frequently normocytic. Proximal tumor location is associated with predominantly microcytic anemia and systemic inflammation is associated with normocytic anemia. PMID- 29348550 TI - Bimolecular recombination in methylammonium lead triiodide perovskite is an inverse absorption process. AB - Photovoltaic devices based on metal halide perovskites are rapidly improving in efficiency. Once the Shockley-Queisser limit is reached, charge-carrier extraction will be limited only by radiative bimolecular recombination of electrons with holes. Yet, this fundamental process, and its link with material stoichiometry, is still poorly understood. Here we show that bimolecular charge carrier recombination in methylammonium lead triiodide perovskite can be fully explained as the inverse process of absorption. By correctly accounting for contributions to the absorption from excitons and electron-hole continuum states, we are able to utilise the van Roosbroeck-Shockley relation to determine bimolecular recombination rate constants from absorption spectra. We show that the sharpening of photon, electron and hole distribution functions significantly enhances bimolecular charge recombination as the temperature is lowered, mirroring trends in transient spectroscopy. Our findings provide vital understanding of band-to-band recombination processes in this hybrid perovskite, which comprise direct, fully radiative transitions between thermalized electrons and holes. PMID- 29348551 TI - Designable and dynamic single-walled stiff nanotubes assembled from sequence defined peptoids. AB - Despite recent advances in the assembly of organic nanotubes, conferral of sequence-defined engineering and dynamic response characteristics to the tubules remains a challenge. Here we report a new family of highly designable and dynamic nanotubes assembled from sequence-defined peptoids through a unique "rolling-up and closure of nanosheet" mechanism. During the assembly process, amorphous spherical particles of amphiphilic peptoid oligomers crystallize to form well defined nanosheets before folding to form single-walled nanotubes. These nanotubes undergo a pH-triggered, reversible contraction-expansion motion. By varying the number of hydrophobic residues of peptoids, we demonstrate tuning of nanotube wall thickness, diameter, and mechanical properties. Atomic force microscopy-based mechanical measurements show peptoid nanotubes are highly stiff (Young's Modulus ~13-17 GPa). We further demonstrate the precise incorporation of functional groups within nanotubes and their applications in water decontamination and cellular adhesion and uptake. These nanotubes provide a robust platform for developing biomimetic materials tailored to specific applications. PMID- 29348552 TI - TPGLDA: Novel prediction of associations between lncRNAs and diseases via lncRNA disease-gene tripartite graph. AB - Accumulating evidences have indicated that lncRNAs play an important role in various human complex diseases. However, known disease-related lncRNAs are still comparatively small in number, and experimental identification is time-consuming and labor-intensive. Therefore, developing a useful computational method for inferring potential associations between lncRNAs and diseases has become a hot topic, which can significantly help people to explore complex human diseases at the molecular level and effectively advance the quality of disease diagnostics, therapy, prognosis and prevention. In this paper, we propose a novel prediction of lncRNA-disease associations via lncRNA-disease-gene tripartite graph (TPGLDA), which integrates gene-disease associations with lncRNA-disease associations. Compared to previous studies, TPGLDA can be used to better delineate the heterogeneity of coding-non-coding genes-disease association and can effectively identify potential lncRNA-disease associations. After implementing the leave-one out cross validation, TPGLDA achieves an AUC value of 93.9% which demonstrates its good predictive performance. Moreover, the top 5 predicted rankings of lung cancer, hepatocellular carcinoma and ovarian cancer are manually confirmed by different relevant databases and literatures, affording convincing evidence of the good performance as well as potential value of TPGLDA in identifying potential lncRNA-disease associations. Matlab and R codes of TPGLDA can be found at following: https://github.com/USTC-HIlab/TPGLDA . PMID- 29348553 TI - Night eating model shows time-specific depression-like behavior in the forced swimming test. AB - The circadian clock system is associated with feeding and mood. Patients with night eating syndrome (NES) delay their eating rhythm and their mood declines during the evening and night, manifesting as time-specific depression. Therefore, we hypothesized that the NES feeding pattern might cause time-specific depression. We established new NES model by restricted feeding with high-fat diet during the inactive period under normal-fat diet ad libitum. The FST (forced swimming test) immobility time in the NES model group was prolonged only after lights-on, corresponding to evening and early night for humans. We examined the effect of the NES feeding pattern on peripheral clocks using PER2::LUCIFERASE knock-in mice and an in vivo monitoring system. Caloric intake during the inactive period would shift the peripheral clock, and might be an important factor in causing the time-specific depression-like behavior. In the NES model group, synthesis of serotonin and norepinephrine were increased, but utilization and metabolism of these monoamines were decreased under stress. Desipramine shortened some mice's FST immobility time in the NES model group. The present study suggests that the NES feeding pattern causes phase shift of peripheral clocks and malfunction of the monoamine system, which may contribute to the development of time-specific depression. PMID- 29348554 TI - Effects of CO2 enrichment on benthic primary production and inorganic nitrogen fluxes in two coastal sediments. AB - Ocean acidification may alter the cycling of nitrogen in coastal sediment and so the sediment-seawater nitrogen flux, an important driver of pelagic productivity. To investigate how this perturbation affects the fluxes of NOX- (nitrite/nitrate), NH4+ and O2, we incubated estuarine sand and subtidal silt in recirculating seawater with a CO2-adjusted pH of 8.1 and 7.9. During a 41-day incubation, the seawater kept at pH 8.1 lost 97% of its NOX- content but the seawater kept at pH 7.9 lost only 18%. Excess CO2 increased benthic photosynthesis. In the silt, this was accompanied by a reversal of the initial NOX- efflux into influx. The estuarine sand sustained its initial NOX- influx but, by the end of the incubation, released more NH4+ at pH 7.9 than at pH 8.1. We hypothesise that these effects share a common cause; excess CO2 increased the growth of benthic microalgae and so nutrient competition with ammonia oxidising bacteria (AOB). In the silt, diatoms likely outcompeted AOB for NH4+ and photosynthesis increased the dark/light fluctuations in the pore water oxygenation inhibiting nitrification and coupled nitrification/denitrification. If this is correct, then excess CO2 may lead to retention of inorganic nitrogen adding to the pressures of increasing coastal eutrophication. PMID- 29348556 TI - Puromycin labeling does not allow protein synthesis to be measured in energy starved cells. PMID- 29348555 TI - Novel Immunoinformatics Approaches to Design Multi-epitope Subunit Vaccine for Malaria by Investigating Anopheles Salivary Protein. AB - Malaria fever has been pervasive for quite a while in tropical developing regions causing high morbidity and mortality. The causal organism is a protozoan parasite of genus Plasmodium which spreads to the human host by the bite of hitherto infected female Anopheles mosquito. In the course of biting, a salivary protein of Anopheles helps in blood feeding behavior and having the ability to elicit the host immune response. This study represents a series of immunoinformatics approaches to design multi-epitope subunit vaccine using Anopheles mosquito salivary proteins. Designed subunit vaccine was evaluated for its immunogenicity, allergenicity and physiochemical parameters. To enhance the stability of vaccine protein, disulfide engineering was performed in a region of high mobility. Codon adaptation and in silico cloning was also performed to ensure the higher expression of designed subunit vaccine in E. coli K12 expression system. Finally, molecular docking and simulation study was performed for the vaccine protein and TLR-4 receptor, to determine the binding free energy and complex stability. Moreover, the designed subunit vaccine was found to induce anti-salivary immunity which may have the ability to prevent the entry of Plasmodium sporozoites into the human host. PMID- 29348557 TI - Sensitizing tumor cells to conventional drugs: HSP70 chaperone inhibitors, their selection and application in cancer models. AB - Hsp70 chaperone controls proteostasis and anti-stress responses in rapidly renewing cancer cells, making it an important target for therapeutic compounds. To date several Hsp70 inhibitors are presented with remarkable anticancer activity, however their clinical application is limited by the high toxicity towards normal cells. This study aimed to develop assays to search for the substances that reduce the chaperone activity of Hsp70 and diminish its protective function in cancer cells. On our mind the resulting compounds alone should be safe and function in combination with drugs widely employed in oncology. We constructed systems for the analysis of substrate-binding and refolding activity of Hsp70 and to validate the assays screened the substances representing most diverse groups of chemicals of InterBioScreen library. One of the inhibitors was AEAC, an N-amino-ethylamino derivative of colchicine, which toxicity was two-orders lower than that of parent compound. In contrast to colchicine, AEAC inhibited substrate-binding and refolding functions of Hsp70 chaperones. The results of a drug affinity responsive target stability assay, microscale thermophoresis and molecular docking show that AEAC binds Hsp70 with nanomolar affinity. AEAC was found to penetrate C6 rat glioblastoma and B16 mouse melanoma cells and reduce there the function of the Hsp70-mediated refolding system. Although the cytotoxic and growth inhibitory activities of AEAC were minimal, the compound was shown to increase the antitumor efficiency of doxorubicin in tumor cells of both types. When the tumors were grown in animals, AEAC administration in combination with doxorubicin exerted maximal therapeutic effect prolonging animal survival by 10-15 days and reducing tumor growth rate by 60%. To our knowledge, this is the first time that this approach to the high throughput analysis of chaperone inhibitors has been applied, and it can be useful in the search for drug combinations that are effective in the treatment of highly resistant tumors. PMID- 29348558 TI - Preparation of polyaniline/PbS core-shell nano/microcomposite and its application for photocatalytic H2 electrogeneration from H2O. AB - Lead sulfide (PbS) and polyaniline (PANI) nano/microparticles were prepared. Then, PANI/PbS core-shell nano/microcomposites (I, II, and III) were prepared by oxidative polymerization of different aniline concentrations (0.01, 0.03, and 0.05 M), respectively, in the presence of 0.05 M PbS. FT-IR, XRD, SEM, HR-TEM, and UV-Vis analyses were carried out to characterize the samples. From the FT-IR data, there are redshifts in PbS and PANI nano/microparticles bands in comparison with PANI/PbS nano/microcomposites. The average crystallite sizes of PANI/PbS core-shell nano/microcomposites (I, II, and III) from XRD analyses were 46.5, 55, and 42.16 nm, respectively. From the optical analyses, nano/microcomposite (II) has the optimum optical properties with two band gaps values of 1.41 and 2.79 eV. Then, the nano/microcomposite (II) membrane electrode supported on ITO glass was prepared and applied on the photoelectrochemical (PEC) H2 generation from H2O. The characteristics current-voltage and current-time behaviors were measured at different wavelengths from 390 to 636 nm. Also, the incident photon-to-current conversion efficiency (IPCE) under monochromatic illumination condition was calculated. The optimum values for IPCE were 36.5 and 35.2% at 390 and 405 nm, respectively. Finally, a simple mechanism for PEC H2 generation from H2O using the nano/microcomposite (II) membrane electrode was mentioned. PMID- 29348559 TI - PLK1 protects against sepsis-induced intestinal barrier dysfunction. AB - Sepsis and sepsis-associated intestinal barrier dysfunction are common in intensive care units, with high mortality. The aim of this study is to investigate whether Polo-like kinase 1 (PLK1) ameliorates sepsis-induced intestinal barrier dysfunction in the intestinal epithelium. The mouse intestinal barrier was disrupted after Lipopolysaccharide (LPS) injection due to intestinal epithelial cell apoptosis and proliferation inhibition, accompanied by decreased PLK1. In HT-29 intestinal epithelial cells, LPS stimulation induced cell apoptosis and inhibited cell proliferation. Overexpression of PLK1 partly rescued the apoptosis and proliferation inhibition in HT29 cells caused by LPS. Finally, LPS stimulation promoted the reduction of PLK1, resulting in apoptosis and proliferation inhibition in intestinal epithelial cells, disrupting the intestinal epithelial barrier. These findings indicate that PLK1 might be a potential therapeutic target for the treatment of sepsis-induced intestinal barrier dysfunction. PMID- 29348560 TI - Discovery of a small-molecule protein kinase Cdelta-selective activator with promising application in colon cancer therapy. AB - Protein kinase C (PKC) isozymes play major roles in human diseases, including cancer. Yet, the poor understanding of isozymes-specific functions and the limited availability of selective pharmacological modulators of PKC isozymes have limited the clinical translation of PKC-targeting agents. Here, we report the first small-molecule PKCdelta-selective activator, the 7alpha-acetoxy-6beta benzoyloxy-12-O-benzoylroyleanone (Roy-Bz), which binds to the PKCdelta-C1 domain. Roy-Bz potently inhibited the proliferation of colon cancer cells by inducing a PKCdelta-dependent mitochondrial apoptotic pathway involving caspase-3 activation. In HCT116 colon cancer cells, Roy-Bz specifically triggered the translocation of PKCdelta but not other phorbol ester responsive PKCs. Roy-Bz caused a marked inhibition in migration of HCT116 cells in a PKCdelta-dependent manner. Additionally, the impairment of colonosphere growth and formation, associated with depletion of stemness markers, indicate that Roy-Bz also targets drug-resistant cancer stem cells, preventing tumor dissemination and recurrence. Notably, in xenograft mouse models, Roy-Bz showed a PKCdelta-dependent antitumor effect, through anti-proliferative, pro-apoptotic, and anti-angiogenic activities. Besides, Roy-Bz was non-genotoxic, and in vivo it had no apparent toxic side effects. Collectively, our findings reveal a novel promising anticancer drug candidate. Most importantly, Roy-Bz opens the way to a new era on PKC biology and pharmacology, contributing to the potential redefinition of the structural requirements of isozyme-selective agents, and to the re-establishment of PKC isozymes as feasible therapeutic targets in human diseases. PMID- 29348561 TI - Performance analysis of an adaptive optics system for free-space optics communication through atmospheric turbulence. AB - The performance of free-space optics communication (FSOC) is greatly degraded by atmospheric turbulence. Adaptive optics (AO) is an effective method for attenuating the influence. In this paper, the influence of the spatial and temporal characteristics of turbulence on the performance of AO in a FSOC system is investigated. Based on the Greenwood frequency (GF) and the ratio of receiver aperture diameter to atmospheric coherent length (D/r 0 ), the relationship between FSOC performance (CE) and AO parameters (corrected Zernike modes number and bandwidth) is derived for the first time. Then, simulations and experiments are conducted to analyze the influence of AO parameters on FSOC performance under different GF and D/r 0 . The simulation and experimental results show that, for common turbulence conditions, the number of corrected Zernike modes can be fixed at 35 and the bandwidth of the AO system should be larger than the GF. Measurements of the bit error rate (BER) for moderate turbulence conditions (D/r 0 = 10, f G = 60 Hz) show that when the bandwidth is two times that of GF, the average BER is decreased by two orders of magnitude compared with f G /f 3dB = 1. These results and conclusions can provide important guidance in the design of an AO system for FSOC. PMID- 29348562 TI - Non-marine palaeoenvironment associated to the earliest tetrapod tracks. AB - Opinions differ on whether the evolution of tetrapods (limbed vertebrates) from lobe-finned fishes was directly linked to terrestrialization. The earliest known tetrapod fossils, from the Middle Devonian (approximately 390 million years old) of Zachelmie Quarry in Poland, are trackways made by limbs with digits; they document a direct environmental association and thus have the potential to help answer this question. However, the tetrapod identity of the tracks has recently been challenged, despite their well-preserved morphology, on account of their great age and supposedly shallow marine (intertidal or lagoonal) depositional environment. Here we present a new palaeoenvironmental interpretation of the track-bearing interval from Zachelmie, showing that it represents a succession of ephemeral lakes with a restricted and non-marine biota, rather than a marginal marine environment as originally thought. This context suggests that the trackmaker was capable of terrestrial locomotion, consistent with the appendage morphology recorded by the footprints, and thus provides additional support for a tetrapod identification. PMID- 29348563 TI - Disruption of CXCR3 function impedes the development of Sjogren's syndrome-like xerostomia in non-obese diabetic mice. AB - The chemokine receptor CXCR3 plays an important role in T cell recruitment in various immune responses and autoimmune diseases. Expression of CXCR3 ligands, including CXCL9, CXCL10, and CXCL11, is elevated in the salivary glands of patients with Sjogren's syndrome (SS). To elucidate whether interaction between CXCR3 and its ligands is required for the development of SS, we administrated an anti-CXCR3 blocking antibody (CXCR3-173) to the non-obese diabetic (NOD) mice, a well-defined model of SS, during the stage prior to disease onset. Treatment with this anti-CXCR3 antibody significantly improved salivary secretion, indicating a remission of SS clinical manifestation. Anti-CXCR3 treatment did not affect the gross leukocyte infiltration of the submandibular glands (SMGs) as assessed by hematoxylin and eosin staining. However, flow cytometric analysis showed that anti-CXCR3 treatment markedly reduced the percentage of CXCR3+CD8 T and CXCR3+CD44+CD8 T cells, without affecting that of CXCR3+CD4 T and CXCR3+CD44+CD4 T cells in the SMGs and submandibular lymph nodes, suggesting a preferential effect of this anti-CXCR3 treatment on CXCR3-expressing effector CD8 T cells. Meanwhile, SMG expression of inflammatory factor TNF-alpha was markedly diminished by anti-CXCR3 treatment. In accordance, anti-CXCR3 significantly enhanced SMG expression of tight junction protein claudin-1 and water channel protein aquaporin 5, two molecules that are crucial for normal salivary secretion and can be down-regulated by TNF-alpha. Taken together, these findings demonstrated that the interaction between the endogenous CXCR3 and its ligands plays a pro-inflammatory and pathogenic role in the development of SS-like xerostomia in the NOD mouse model. PMID- 29348564 TI - Inhibition of WNT/beta-catenin signaling under serum starvation and hypoxia induces adipocytic transdifferentiation in human leiomyoma cells. AB - Fatty metamorphosis is an uncommon alteration in uterine leiomyoma (i.e., lipoleiomyoma), and the pathogenetic mechanisms underlying this phenomenon remain poorly understood. Because a conditional deletion of beta-catenin, a major transducer of the canonical Wingless/integrated (WNT) pathway, in the developing mouse uterus can induce adipogenesis in the myometrium, it is hypothesized that inhibition of the WNT/beta-catenin signaling may be also involved in the development of fat cells within uterine leiomyoma. In the current study, which was performed to address this point, intracytoplasmic lipid droplets were detectable in cultured human leiomyoma cells by treatment with a potent tankyrase inhibitor, XAV939, which antagonizes beta-catenin, in a serum-starved culture medium without additional adipogenesis-inducing agents or supplements, and showed increasing accumulation in a time-dependent manner. In addition, the induction of fat cells was greatly enhanced under hypoxic conditions (i.e., 2.5% O2) recapitulating the local in vivo situation of uterine leiomyoma-in comparison to that under normoxic conditions (i.e., 21% O2). The marker genes of differentiated fat cells such as ADIPOQ and PLIN were highly expressed in leiomyoma cells that were treated with XAV939 under hypoxia and serum starvation, whereas the immunohistochemical expression of desmin-a cytoskeletal protein representing smooth muscle differentiation-was downregulated, which appears in line with the switch in differentiation. The results of our study suggest that the inhibition of canonical WNT/beta-catenin signaling under the stress due to hypoxia and serum starvation can initiate adipocytic transdifferentiation or metaplasia in human uterine leiomyoma cells, which is potentially related to the development of lipoleiomyoma. PMID- 29348565 TI - An in vitro system of autologous lymphocytes culture that allows the study of homeostatic proliferation mechanisms in human naive CD4 T-cells. AB - The size of peripheral T-cell pool is kept constant throughout life. However, a decline in lymphocyte numbers is a feature of several human disorders, in which fast and slow homeostatic proliferation play a crucial role. Several in vitro and in vivo models have been developed to study such processes. Nevertheless, self- and commensal- antigens, well-known triggers of homeostatic proliferation, have not been examined in these models. We have designed an in vitro culture of human T-cells exposed to rIL7 and autologous antigen-presenting cells (aAPC) that allows the simultaneous characterization of the different types of homeostatic proliferation. Using our model, we first confirmed that both rIL7 and aAPC are survival signals ultimately leading to homeostatic proliferation. In addition, we explored the modulation of different anti-apoptotic, proliferative, activation and homing markers during fast and slow homeostatic proliferation. Finally, different subsets of Treg were generated during homeostatic proliferation in our model. In summary, our in vitro system is able to simultaneously reproduce both types of homeostatic proliferation of human naive CD4 T-cells, and allows the characterization of these processes. Our in vitro system is a useful tool to explore specific features of human homeostatic proliferation in different human lymphopenia-related disorders and could be used as a cell therapy approach. PMID- 29348566 TI - Phosphorylation of ULK1 by AMPK is essential for mouse embryonic stem cell self renewal and pluripotency. AB - Autophagy is a catabolic process to degrade both damaged organelles and aggregated proteins in somatic cells. We have recently identified that autophagy is an executor for mitochondrial homeostasis in embryonic stem cell (ESC), and thus contribute to stemness regulation. However, the regulatory and functional mechanisms of autophagy in ESC are still largely unknown. Here we have shown that activation of ULK1 by AMPK is essential for ESC self-renewal and pluripotency. Dysfunction of Ulk1 decreases the autophagic flux in ESC, leading to compromised self-renewal and pluripotency. These defects can be rescued by reacquisition of wild-type ULK1 and ULK1(S757A) mutant, but not ULK1(S317A, S555A and S777A) and kinase dead ULK1(K46I) mutant. These data indicate that phosphorylation of ULK1 by AMPK, but not mTOR, is essential for stemness regulation in ESC. The findings highlight a critical role for AMPK-dependent phosphorylation of ULK1 pathway to maintain ESC self-renewal and pluripotency. PMID- 29348567 TI - Optical magnetism in planar metamaterial heterostructures. AB - Harnessing artificial optical magnetism has previously required complex two- and three-dimensional structures, such as nanoparticle arrays and split-ring metamaterials. By contrast, planar structures, and in particular dielectric/metal multilayer metamaterials, have been generally considered non-magnetic. Although the hyperbolic and plasmonic properties of these systems have been extensively investigated, their assumed non-magnetic response limits their performance to transverse magnetic (TM) polarization. We propose and experimentally validate a mechanism for artificial magnetism in planar multilayer metamaterials. We also demonstrate that the magnetic properties of high-index dielectric/metal hyperbolic metamaterials can be anisotropic, leading to magnetic hyperbolic dispersion in certain frequency regimes. We show that such systems can support transverse electric polarized interface-bound waves, analogous to their TM counterparts, surface plasmon polaritons. Our results open a route for tailoring optical artificial magnetism in lithography-free layered systems and enable us to generalize the plasmonic and hyperbolic properties to encompass both linear polarizations. PMID- 29348568 TI - Medial preoptic area in mice is capable of mediating sexually dimorphic behaviors regardless of gender. AB - The medial preoptic area (mPOA) differs between males and females in nearly all species examined to date, including humans. Here, using fiber photometry recordings of Ca2+ transients in freely behaving mice, we show ramping activities in the mPOA that precede and correlate with sexually dimorphic display of male typical mounting and female-typical pup retrieval. Strikingly, optogenetic stimulation of the mPOA elicits similar display of mounting and pup retrieval in both males and females. Furthermore, by means of recording, ablation, optogenetic activation, and inhibition, we show mPOA neurons expressing estrogen receptor alpha (Esr1) are essential for the sexually biased display of these behaviors. Together, these results underscore the shared layout of the brain that can mediate sex-specific behaviors in both male and female mice and provide an important functional frame to decode neural mechanisms governing sexually dimorphic behaviors in the future. PMID- 29348569 TI - GenomeLandscaper: Landscape analysis of genome-fingerprints maps assessing chromosome architecture. AB - Assessing correctness of an assembled chromosome architecture is a central challenge. We create a geometric analysis method (called GenomeLandscaper) to conduct landscape analysis of genome-fingerprints maps (GFM), trace large-scale repetitive regions, and assess their impacts on the global architectures of assembled chromosomes. We develop an alignment-free method for phylogenetics analysis. The human Y chromosomes (GRCh.chrY, HuRef.chrY and YH.chrY) are analysed as a proof-of-concept study. We construct a galaxy of genome fingerprints maps (GGFM) for them, and a landscape compatibility among relatives is observed. But a long sharp straight line on the GGFM breaks such a landscape compatibility, distinguishing GRCh38p1.chrY (and throughout GRCh38p7.chrY) from GRCh37p13.chrY, HuRef.chrY and YH.chrY. We delete a 1.30-Mbp target segment to rescue the landscape compatibility, matching the antecedent GRCh37p13.chrY. We re locate it into the modelled centromeric and pericentromeric region of GRCh38p10.chrY, matching a gap placeholder of GRCh37p13.chrY. We decompose it into sub-constituents (such as BACs, interspersed repeats, and tandem repeats) and trace their homologues by phylogenetics analysis. We elucidate that most examined tandem repeats are of reasonable quality, but the BAC-sized repeats, 173U1020C (176.46 Kbp) and 5U41068C (205.34 Kbp), are likely over-repeated. These results offer unique insights into the centromeric and pericentromeric regions of the human Y chromosomes. PMID- 29348570 TI - Systematic in vivo evaluation of the time-dependent inflammatory response to steel and Teflon insulin infusion catheters. AB - Continuous subcutaneous insulin infusion (CSII) catheters are considered the weak link of insulin pump therapy. Wear-time considerably varies between patients and the choice of catheter material is based on personal preferences rather than scientific facts. Therefore, we systematically assessed and quantified the inflammatory tissue response to steel versus Teflon CSII catheters over a maximum wear-time of 7 days in swine. Tissue surrounding catheters was analysed using histopathology and quantitative real-time PCR. The area of inflammation increased significantly over time independent of material which was confirmed by an increase in CD68 expression and an increase in mononuclear and neutrophil cell infiltrate around the catheters. We observed substantially higher fibrin deposition (p < 0.05) around steel on day 4 of wear-time. IL-6 gene expression increased within 24 hours after insertion, returned to normal levels around Teflon (p < 0.05) but remained high around steel (p < 0.05). IL-10 and TGF-beta levels did not resolve over time, indicating impaired wound healing. In conclusion, there was a major temporal effect in the acute inflammatory response to CSII catheters but we found little difference between materials. This study setup presents a robust tool for the systematic analysis of the tissue response to CSII catheters. PMID- 29348571 TI - High resolution time series reveals cohesive but short-lived communities in coastal plankton. AB - Because microbial plankton in the ocean comprise diverse bacteria, algae, and protists that are subject to environmental forcing on multiple spatial and temporal scales, a fundamental open question is to what extent these organisms form ecologically cohesive communities. Here we show that although all taxa undergo large, near daily fluctuations in abundance, microbial plankton are organized into clearly defined communities whose turnover is rapid and sharp. We analyze a time series of 93 consecutive days of coastal plankton using a technique that allows inference of communities as modular units of interacting taxa by determining positive and negative correlations at different temporal frequencies. This approach shows both coordinated population expansions that demarcate community boundaries and high frequency of positive and negative associations among populations within communities. Our analysis thus highlights that the environmental variability of the coastal ocean is mirrored in sharp transitions of defined but ephemeral communities of organisms. PMID- 29348572 TI - Areca nut extracts mobilize calcium and release pro-inflammatory cytokines from various immune cells. AB - Betel nut consumption has significant implications for the public health globally, as the wide-spread habit of Areca chewing throughout Asia and the Pacific is associated with a high prevalence of oral carcinoma and other diseases. Despite a clear causal association of betel nut chewing and oral mucosal diseases, the biological mechanisms that link Areca nut-contained molecules, inflammation and cancer remain underexplored. In this study we show that the whole Areca nut extract (ANE) is capable of mobilizing Ca2+ in various immune cell lines. Interestingly, none of the four major alkaloids or a range of other known constituents of Areca nut were able to induce such Ca2+ signals, suggesting that the active components might represent novel or so far unappreciated chemical structures. The separation of ANE into aqueous and organic fractions has further revealed that the calcium-mobilizing molecules are exclusively present in the aqueous extract. In addition, we found that these calcium signals are associated with the activation of several immune cell lines as shown by the release of pro-inflammatory cytokines and increased cell proliferation. These results indicate that calcium-mobilizing molecules present in the aqueous fraction of the Areca nut may critically contribute to the inflammatory disorders affecting betel nut chewers. PMID- 29348574 TI - Full-body physical therapy evaluation for pre- and post-hematopoietic cell transplant patients and the need for a modified rehabilitation musculoskeletal specific grading system for chronic graft-versus-host disease. PMID- 29348573 TI - Exendin-4-encapsulated dissolving microneedle arrays for efficient treatment of type 2 diabetes. AB - Dissolving microneedles (DMNs) are microscopic needles capable of delivering encapsulated compounds and releasing them into the skin in a minimally invasive manner. Most studies indicate that encapsulating therapeutics in DMNs is an efficacious approach; however, the importance of evaluating the activity of encapsulated compounds, during the fabrication process, has not been examined in detail. Conducting an analysis of thermal, chemical, and physical stress factors, including temperature, pH, and the interaction of the polymer and therapeutics mixture during preparation, is essential for retaining the activity of encapsulated therapeutics during and after fabrication. Here, we optimised the thermal, chemical, and physical parameters for the fabrication of exendin-4 (Ex 4)-encapsulated DMNs (Ex-4 DMNs). Ex-4, a peptide agonist of glucagon-like peptide (GLP) receptor, is used for glycaemic control in patients with type 2 diabetes. Our findings indicate that optimising the parameters involved in DMN fabrication retained the activity of Ex-4 by up to 98.3 +/- 1.5%. Ex-4 DMNs reduced the blood-glucose level in diabetic mice with efficiency similar to that of a subcutaneous injection. We believe that this study paves way for the commercialisation of an efficient and minimally invasive treatment for patients with type 2 diabetes. PMID- 29348575 TI - Quantitative optical nanophysiology of Ca2+ signaling at inner hair cell active zones. AB - Ca2+ influx triggers the release of synaptic vesicles at the presynaptic active zone (AZ). A quantitative characterization of presynaptic Ca2+ signaling is critical for understanding synaptic transmission. However, this has remained challenging to establish at the required resolution. Here, we employ confocal and stimulated emission depletion (STED) microscopy to quantify the number (20-330) and arrangement (mostly linear 70 nm * 100-600 nm clusters) of Ca2+ channels at AZs of mouse cochlear inner hair cells (IHCs). Establishing STED Ca2+ imaging, we analyze presynaptic Ca2+ signals at the nanometer scale and find confined elongated Ca2+ domains at normal IHC AZs, whereas Ca2+ domains are spatially spread out at the AZs of bassoon-deficient IHCs. Performing 2D-STED fluorescence lifetime analysis, we arrive at estimates of the Ca2+ concentrations at stimulated IHC AZs of on average 25 uM. We propose that IHCs form bassoon dependent presynaptic Ca2+-channel clusters of similar density but scalable length, thereby varying the number of Ca2+ channels amongst individual AZs. PMID- 29348576 TI - Redundancy of protein disulfide isomerases in the catalysis of the inactivating disulfide switch in A Disintegrin and Metalloprotease 17. AB - A Disintegrin and Metalloprotease 17 (ADAM17) can cause the fast release of growth factors and inflammatory mediators from the cell surface. Its activity has to be turned on which occurs by various stimuli. The active form can be inactivated by a structural change in its ectodomain, related to the pattern of the formed disulphide bridges. The switch-off is executed by protein disulfide isomerases (PDIs) that catalyze an isomerization of two disulfide bridges and thereby cause a disulfide switch. We demonstrate that the integrity of the CGHC motif within the active site of PDIs is indispensable. In particular, no major variation is apparent in the activities of the two catalytic domains of PDIA6. The affinities between PDIA1, PDIA3, PDIA6 and the targeted domain of ADAM17 are all in the nanomolar range and display no significant differences. The redundancy between PDIs and their disulfide switch activity in ectodomains of transmembrane proteins found in vitro appears to be a basic characteristic. However, different PDIs might be required in vivo for disulfide switches in different tissues and under different cellular and physiological situations. PMID- 29348577 TI - Targeting B cell receptor signalling in cancer: preclinical and clinical advances. AB - B cell receptor (BCR) signalling is crucial for normal B cell development and adaptive immunity. BCR signalling also supports the survival and growth of malignant B cells in patients with B cell leukaemias or lymphomas. The mechanism of BCR pathway activation in these diseases includes continuous BCR stimulation by microbial antigens or autoantigens present in the tissue microenvironment, activating mutations within the BCR complex or downstream signalling components and ligand-independent tonic BCR signalling. The most established agents targeting BCR signalling are Bruton tyrosine kinase (BTK) inhibitors and PI3K isoform-specific inhibitors, and their introduction into the clinic is rapidly changing how B cell malignancies are treated. B cells and BCR-related kinases, such as BTK, also play a role in the microenvironment of solid tumours, such as squamous cell carcinoma and pancreatic cancer, and therefore targeting B cells or BCR-related kinases may have anticancer activity beyond B cell malignancies. PMID- 29348579 TI - Structural basis of SALM5-induced PTPdelta dimerization for synaptic differentiation. AB - SALM5, a synaptic adhesion molecule implicated in autism, induces presynaptic differentiation through binding to the LAR family receptor protein tyrosine phosphatases (LAR-RPTPs) that have been highlighted as presynaptic hubs for synapse formation. The mechanisms underlying SALM5/LAR-RPTP interaction remain unsolved. Here we report crystal structures of human SALM5 LRR-Ig alone and in complex with human PTPdelta Ig1-3 (MeA-). Distinct from other LAR-RPTP ligands, SALM5 mainly exists as a dimer with LRR domains from two protomers packed in an antiparallel fashion. In the 2:2 heterotetrameric SALM5/PTPdelta complex, a SALM5 dimer bridges two separate PTPdelta molecules. Structure-guided mutations and heterologous synapse formation assays demonstrate that dimerization of SALM5 is prerequisite for its functionality in inducing synaptic differentiation. This study presents a structural template for the SALM family and reveals a mechanism for how a synaptic adhesion molecule directly induces cis-dimerization of LAR RPTPs into higher-order signaling assembly. PMID- 29348580 TI - The epibiotic life of the cosmopolitan diatom Fragilariopsis doliolus on heterotrophic ciliates in the open ocean. AB - Diatoms are a diverse and ecologically important group of phytoplankton. Although most species are considered free living, several are known to interact with other organisms within the plankton. Detailed imaging and molecular characterization of any such partnership is, however, limited, and an appraisal of the large-scale distribution and ecology of such consortia was never attempted. Here, observation of Tara Oceans samples from the Benguela Current led to the detection of an epibiotic association between a pennate diatom and a tintinnid ciliate. We identified the diatom as Fragilariopsis doliolus that possesses a unique feature to form barrel-shaped chains, associated with seven different genera of tintinnids including five previously undescribed associations. The organisms were commonly found together in the Atlantic and Pacific Ocean basins, and live observations of the interaction have been recorded for the first time. By combining confocal and scanning electron microscopy of individual consortia with the sequencing of high-resolution molecular markers, we analyzed their distribution in the global ocean, revealing morpho-genetically distinct tintinnid haplotypes and biogeographically structured diatom haplotypes. The diatom was among the most abundant in the global ocean. We show that the consortia were particularly prevalent in nutrient-replete conditions, rich in potential predators. These observations support the hypothesis of a mutualistic symbiosis, wherein diatoms acquire increased motility and tintinnids benefit from silicification through increased protection, and highlight that such associations may be more prevalent than currently appreciated. PMID- 29348578 TI - A matter of life and death: stem cell survival in tissue regeneration and tumour formation. AB - In recent years, great strides have been made in our understanding of how stem cells (SCs) govern tissue homeostasis and regeneration. The inherent longevity of SCs raises the possibility that the unique protective mechanisms in these cells might also be involved in tumorigenesis. In this Opinion article, we discuss how SCs are protected throughout their lifespan, focusing on quiescent behaviour, DNA damage response and programmed cell death. We briefly examine the roles of adult SCs and progenitors in tissue repair and tumorigenesis and explore how signals released from dying or dormant cells influence the function of healthy or aberrant SCs. Important insight into the mechanisms that regulate SC death and survival, as well as the 'legacy' imparted by departing cells, may unlock novel avenues for regenerative medicine and cancer therapy. PMID- 29348581 TI - Identifying metabolic pathways for production of extracellular polymeric substances by the diatom Fragilariopsis cylindrus inhabiting sea ice. AB - Diatoms are significant primary producers in sea ice, an ephemeral habitat with steep vertical gradients of temperature and salinity characterizing the ice matrix environment. To cope with the variable and challenging conditions, sea ice diatoms produce polysaccharide-rich extracellular polymeric substances (EPS) that play important roles in adhesion, cell protection, ligand binding and as organic carbon sources. Significant differences in EPS concentrations and chemical composition corresponding to temperature and salinity gradients were present in sea ice from the Weddell Sea and Eastern Antarctic regions of the Southern Ocean. To reconstruct the first metabolic pathway for EPS production in diatoms, we exposed Fragilariopsis cylindrus, a key bi-polar diatom species, to simulated sea ice formation. Transcriptome profiling under varying conditions of EPS production identified a significant number of genes and divergent alleles. Their complex differential expression patterns under simulated sea ice formation was aligned with physiological and biochemical properties of the cells, and with field measurements of sea ice EPS characteristics. Thus, the molecular complexity of the EPS pathway suggests metabolic plasticity in F. cylindrus is required to cope with the challenging conditions of the highly variable and extreme sea ice habitat. PMID- 29348582 TI - Nanostructured titanium surfaces exhibit recalcitrance towards Staphylococcus epidermidis biofilm formation. AB - Titanium-based implants are ubiquitous in the healthcare industries and often suffer from bacterial attachment which results in infections. An innovative method of reducing bacterial growth is to employ nanostructures on implant materials that cause contact-dependent cell death by mechanical rupture of bacterial cell membranes. To achieve this, we synthesized nanostructures with different architectures on titanium surfaces using hydrothermal treatment processes and then examined the growth of Staphylococcus epidermidis on these surfaces. The structure obtained after a two-hour hydrothermal treatment (referred to as spear-type) showed the least bacterial attachment at short times but over a period of 6 days tended to support the formation of thick biofilms. By contrast, the structure obtained after a three-hour hydrothermal treatment (referred to as pocket-type) was found to delay biofilm formation up to 6 days and killed 47% of the initially attached bacteria by penetrating or compressing the bacteria in between the network of intertwined nano-spears. The results point to the efficacy of pocket-type nanostructure in increasing the killing rate of individual bacteria and potentially delaying longer-term biofilm formation. PMID- 29348583 TI - Rapid updating of spatial working memory across saccades. AB - Each time we make an eye movement, positions of objects on the retina change. In order to keep track of relevant objects their positions have to be updated. The situation becomes even more complex if the object is no longer present in the world and has to be held in memory. In the present study, we used saccadic curvature to investigate the time-course of updating a memorized location across saccades. Previous studies have shown that a memorized location competes with a saccade target for selection on the oculomotor map, which leads to saccades curving away from it. In our study participants performed a sequence of two saccades while keeping a location in memory. The trajectory of the second saccade was used to measure when the memorized location was updated after the first saccade. The results showed that the memorized location was rapidly updated with the eyes curving away from its spatial coordinates within 130 ms after the first eye movement. The time-course of updating was comparable to the updating of an exogenously attended location, and depended on how well the location was memorized. PMID- 29348584 TI - Quail egg homogenate alleviates food allergy induced eosinophilic esophagitis like disease through modulating PAR-2 transduction pathway in peanut sensitized mice. AB - The present pharmacotherapy for eosinophilic esophagitis (EoE) fundamentally depend on inhaled corticosteroids. Despite the fact that oral intake of topical steroids can be successful in restricting EoE-related inflammation, there are concerns with respect to the long term utilization of steroids, especially in kids. In the current research, we assess the effect of quail egg, which is reportedly a known serine protease inhibitor, on symptomatology and immune responses in a peanut-sensitized mouse model of food allergy induced EoE. Daily oral treatment with quail egg attenuated mice symptomatology and immune response. Treatment with quail egg inhibited antigen-prompted increments in mouse tryptase and eosinophil cationic protein (ECP) in serum and eosinophil in inflamed tissues like oesophagus, lung, and digestive system. Quail egg treatment resulted in decreased antibody specific IgE and IgG1 and a variety of inflammatory genes that were abnormally expressed in EoE. Other effects included increased IL-10, decreased PAR-2 activation and NF-kB p65 in inflamed tissues. Our results suggest that quail egg treatment may have therapeutic potential in attenuating the symptoms of food allergy induced EoE like disease through regulating PAR-2 downstream pathway by blocking the activation of the transcription factor NF-kB p65 activity. PMID- 29348585 TI - A surrogate reporter system for multiplexable evaluation of CRISPR/Cas9 in targeted mutagenesis. AB - Engineered nucleases in genome editing manifest diverse efficiencies at different targeted loci. There is therefore a constant need to evaluate the mutation rates at given loci. T7 endonuclease 1 (T7E1) and Surveyor mismatch cleavage assays are the most widely used methods, but they are labour and time consuming, especially when one must address multiple samples in parallel. Here, we report a surrogate system, called UDAR (Universal Donor As Reporter), to evaluate the efficiency of CRISPR/Cas9 in targeted mutagenesis. Based on the non-homologous end-joining (NHEJ)-mediated knock-in strategy, the UDAR-based assay allows us to rapidly evaluate the targeting efficiencies of sgRNAs. With one-step transfection and fluorescence-activated cell sorting (FACS) analysis, the UDAR assay can be completed on a large scale within three days. For detecting mutations generated by the CRISPR/Cas9 system, a significant positive correlation was observed between the results from the UDAR and T7E1 assays. Consistently, the UDAR assay could quantitatively assess bleomycin- or ICRF193-induced double-strand breaks (DSBs), which suggests that this novel strategy is broadly applicable to assessing the DSB-inducing capability of various agents. With the increasing impact of genome editing in biomedical studies, the UDAR method can significantly benefit the evaluation of targeted mutagenesis, especially for high-throughput purposes. PMID- 29348586 TI - Analogues of Disulfides from Allium stipitatum Demonstrate Potent Anti-tubercular Activities through Drug Efflux Pump and Biofilm Inhibition. AB - Disulfides from Allium stipitatum, commonly known as Persian shallot, were previously reported to possess antibacterial properties. Analogues of these compounds, produced by S-methylthiolation of appropriate thiols using S-methyl methanethiosulfonate, exhibited antimicrobial activity, with one compound inhibiting the growth of Mycobacterium tuberculosis at 17 uM (4 mg L-1) and other compounds inhibiting Escherichia coli and multi-drug-resistant (MDR) Staphylococcus aureus at concentrations ranging between 32-138 uM (8-32 mg L-1). These compounds also displayed moderate inhibitory effects on Klebsiella and Proteus species. Whole-cell phenotypic bioassays such as the spot-culture growth inhibition assay (SPOTi), drug efflux inhibition, biofilm inhibition and cytotoxicity assays were used to evaluate these compounds. Of particular note was their ability to inhibit mycobacterial drug efflux and biofilm formation, while maintaining a high selectivity towards M. tuberculosis H37Rv. These results suggest that methyl disulfides are novel scaffolds which could lead to the development of new drugs against tuberculosis (TB). PMID- 29348588 TI - Two-color second-order sideband generation in an optomechanical system with a two level system. AB - Second-order sideband generation in an optomechanical system with the coupling between a mechanical resonator and a two-level system is discussed beyond the conventional linearized description of optomechanical interactions. The features of two-color second-order sideband generation are demonstrated in this hybrid system. We discovery that the switch between one- and two-color second-order sideband generation is easily realized by shifting the detuning between the control field and the cavity field or the transition frequency of the two-level system. The efficiency of two-color second-order sideband generation increases monotonously with the control field strength. The coupling strength between the mechanical resonator and the two-level system plays a decisive role in the appearance of the two-color second-order sidebands. The two-color second-order sideband generation may provide measurement with higher precision in new degrees of freedom. PMID- 29348587 TI - Comparative analyses of fecal microbiota in Chinese isolated Yao population, minority Zhuang and rural Han by 16sRNA sequencing. AB - The gut microbiome in humans is associated with geography, diet, lifestyles and so on, but its relationship with some isolated populations is not clear. We used the 16sRNA technique to sequence the fecal microbiome in the Chinese isolated Yao population and compared it with the major minority Zhuang and the major ethnic Han populations living in the same rural area. Information about diet frequency and health status and routine serum measurements were collected. The unweighted UniFrac principal coordinates analysis showed significant structural differences in fecal microbiota among the three ethnic groups. Statistically significant differences were observed in the community richness estimator (chaos) and the diversity estimator (Shannon) among the three groups. At the genus level, the fecal samples of the isolated Yao population presented the lowest relative abundance of the Megamonas genus, which was potentially related to the high frequency of bean consumption in the diet. Two enterotypes were identified in the overall fecal microbiota in the three populations. In the isolated Yao population, a higher Bacteroides abundance was observed, but the Prevotella abundance decreased with increased alcohol consumption. PMID- 29348589 TI - Novel Miniature Membrane Active Lipopeptidomimetics against Planktonic and Biofilm Embedded Methicillin-Resistant Staphylococcus aureus. AB - Escalating multidrug resistance and highly evolved virulence mechanisms have aggravated the clinical menace of methicillin-resistant Staphylococcus aureus (MRSA) infections. Towards development of economically viable staphylocidal agents here we report eight structurally novel tryptophan-arginine template based peptidomimetics. Out of the designed molecules, three lipopeptidomimetics (S-6, S 7 and S-8) containing 12-amino dodecanoic acid exhibited cell selectivity and good to potent activity against clinically relevant pathogens MRSA, methicillin resistant Staphylococcus epidermidis and vancomycin-resistant Enterococcus faecium (MIC: 1.4-22.7 MUg/mL). Mechanistically, the active peptidomimetics dissipated membrane potential and caused massive permeabilization on MRSA concomitant with loss of viability. Against stationary phase MRSA under nutrient depleted conditions, active peptidomimetics S-7 and S-8 achieved > 6 log reduction in viability upon 24 h incubation while both S-7 (at 226 MUg/mL) and S 8 (at 28 MUg/mL) also destroyed 48 h mature MRSA biofilm causing significant decrease in viability (p < 0.05). Encouragingly, most active peptidomimetic S-8 maintained efficacy against MRSA in presence of serum/plasma while exhibiting no increase in MIC over 17 serial passages at sub-MIC concentrations implying resistance development to be less likely. Therefore, we envisage that the current template warrants further optimization towards the development of cell selective peptidomimetics for the treatment of device associated MRSA infections. PMID- 29348590 TI - The theoretical molecular weight of NaYF 4 :RE upconversion nanoparticles. AB - Upconversion nanoparticles (UCNPs) are utilized extensively for biomedical imaging, sensing, and therapeutic applications, yet the molecular weight of UCNPs has not previously been reported. Herein, we present a theory based upon the crystal structure of UCNPs to estimate the molecular weight of UCNPs: enabling insight into UCNP molecular weight for the first time. We estimate the theoretical molecular weight of various UCNPs reported in the literature, predicting that spherical NaYF4 UCNPs ~ 10 nm in diameter will be ~1 MDa (i.e. 106 g/mol), whereas UCNPs ~ 45 nm in diameter will be ~100 MDa (i.e. 108 g/mol). We also predict that hexagonal crystal phase UCNPs will be of greater molecular weight than cubic crystal phase UCNPs. Additionally we find that a Gaussian UCNP diameter distribution will correspond to a lognormal UCNP molecular weight distribution. Our approach could potentially be generalised to predict the molecular weight of other arbitrary crystalline nanoparticles: as such, we provide stand-alone graphic user interfaces to calculate the molecular weight both UCNPs and arbitrary crystalline nanoparticles. We expect knowledge of UCNP molecular weight to be of wide utility in biomedical applications where reporting UCNP quantity in absolute numbers or molarity will be beneficial for inter-study comparison and repeatability. PMID- 29348591 TI - Relapsing-Remitting Multiple Sclerosis diagnosis from cerebrospinal fluids via Fourier transform infrared spectroscopy coupled with multivariate analysis. AB - Multiple sclerosis (MS) is a chronic, progressive, inflammatory and degenerative disease of central nervous system. Here, we aimed to develop a method for differential diagnosis of Relapsing-Remitting MS (RRMS) and clinically isolated syndrome (CIS) patients, as well as to identify CIS patients who will progress to RRMS, from cerebrospinal fluid (CSF) by infrared (IR) spectroscopy and multivariate analysis. Spectral analyses demonstrated significant differences in the molecular contents, especially in the lipids and Z conformation of DNA of CSF from CIS, CIS to RRMS transformed (TCIS) and RRMS groups. These changes enables the discrimination of diseased groups and controls (individuals with no neurological disease) from each other using hierarchical cluster and principal component analysis. Some CIS samples were consistently clustered in RRMS class, which may indicate that these CIS patients potentially will transform to RRMS over time. Z-DNA band at 795 cm-1 that is existent only in diseased groups and significant increase in carbonyl amount, decrease in amideI/amide II and lipid/protein ratios observed only for RRMS groups can be used as diagnostic biomarkers. The results of the present study shed light on the early diagnosis of RRMS by IR spectroscopy complemented with multivariate analysis tools. PMID- 29348592 TI - Stingless Bee Larvae Require Fungal Steroid to Pupate. AB - The larval stage of the stingless bee Scaptotrigona depilis must consume a specific brood cell fungus in order to continue development. Here we show that this fungus is a member of the genus Zygosaccharomyces and provides essential steroid precursors to the developing bee. Insect pupation requires ecdysteroid hormones, and as insects cannot synthesize sterols de novo, they must obtain steroids in their diet. Larval in vitro culturing assays demonstrated that consuming ergosterol recapitulates the developmental effects on S. depilis as ingestion of Zygosaccharomyces sp. cells. Thus, we determined the molecular underpinning of this intimate mutualistic symbiosis. Phylogenetic analyses showed that similar cases of bee-Zygosaccharomyces symbiosis may exist. This unprecedented case of bee-fungus symbiosis driven by steroid requirement brings new perspectives regarding pollinator-microbiota interaction and preservation. PMID- 29348593 TI - Temporal diabetes-induced biochemical changes in distinctive layers of mouse retina. AB - To discover the mechanisms underlying the progression of diabetic retinopathy (DR), a more comprehensive understanding of the biomolecular processes in individual retinal cells subjected to hyperglycemia is required. Despite extensive studies, the changes in the biochemistry of retinal layers during the development of DR are not well known. In this study, we aimed to determine a more detailed understanding of the natural history of DR in Akita/+ (type 1 diabetes model) male mice with different duration of diabetes. Employing label-free spatially resolved Fourier transform infrared (FT-IR) chemical imaging engaged with multivariate analysis enabled us to identify temporal-dependent reproducible biomarkers of the individual retinal layers from mice with 6 weeks,12 weeks, 6 months, and 10 months of age. We report, for the first time, the nature of the biochemical alterations over time in the biochemistry of distinctive retinal layers namely photoreceptor retinal layer (PRL), inner nuclear layer (INL), and plexiform layers (OPL, IPL). Moreover, we present the molecular factors associated with the changes in the protein structure and cellular lipids of retinal layers induced by different duration of diabetes. Our paradigm provides a new conceptual framework for a better understanding of the temporal cellular changes underlying the progression of DR. PMID- 29348594 TI - Myelination of Purkinje axons is critical for resilient synaptic transmission in the deep cerebellar nucleus. AB - The roles of myelin in maintaining axonal integrity and action potential (AP) propagation are well established, but its role in synapse maintenance and neurotransmission remains largely understudied. Here, we investigated how Purkinje axon myelination regulates synaptic transmission in the Purkinje to deep cerebellar nuclei (DCN) synapses using the Long Evans Shaker (LES) rat, which lacks compact myelin and thus displays severe locomotion deficits. DCN neurons fired spontaneous action potentials (APs), whose frequencies were dependent on the extent of myelin. In the LES cerebellum with severe myelin deficiency, DCN neurons were hyper-excitable, exhibiting spontaneous AP firing at a much higher frequency compared to those from wild type (LE) and heterozygote (LEHet) rats. The hyper-excitability in LES DCN neurons resulted from reduced inhibitory GABAergic inputs from Purkinje cells to DCN neurons. Corresponding with functional alterations including failures of AP propagation, electron microscopic analysis revealed anatomically fewer active zones at the presynaptic terminals of Purkinje cells in both LEHet and LES rats. Taken together, these studies suggest that proper axonal myelination critically regulates presynaptic terminal structure and function and directly impacts synaptic transmission in the Purkinje cell-DCN cell synapse in the cerebellum. PMID- 29348595 TI - On the Angular Distribution of the H+Li2 Cross Sections: a Converged Time Independent Quantum Scattering Study. AB - A thorough time-independent quantum scattering study is performed on a benchmark potential energy surface for the H+Li2 reaction at the fundamental electronic state. Integral and differential cross sections are calculated along with thermal rate coefficients until convergence is reached. Our findings show that vibrational and rotational excitations of the reactant hinder reactivity, though for the latter a considerable reaction promotion was spotted as we increase the reactant rotational quantum number until the critical value of j = 4. Such a promotion then begins to retract, eventually becoming an actual inhibition for larger j. In a straightforward manner, the concept of time-independent methods implemented in this study allowed this accurate state-to-state analysis. Furthermore, a nearly isotropic behaviour of the scattering is noted to take place from the angular point of view. Remarkably, our computational protocol is ideally suited to yield converged thermal rate coefficients, revealing a non Arrhenius pattern and showing that J-shifting approach fails to describe this particular reaction. Our results, when compared to previous and independent ones, reinforce the latest theoretical reference for future validation in the experimental field. PMID- 29348596 TI - Dynamics of Tree Species Diversity in Unlogged and Selectively Logged Malaysian Forests. AB - Selective logging that is commonly conducted in tropical forests may change tree species diversity. In rarely disturbed tropical forests, locally rare species exhibit higher survival rates. If this non-random process occurs in a logged forest, the forest will rapidly recover its tree species diversity. Here we determined whether a forest in the Pasoh Forest Reserve, Malaysia, which was selectively logged 40 years ago, recovered its original species diversity (species richness and composition). To explore this, we compared the dynamics of secies diversity between unlogged forest plot (18.6 ha) and logged forest plot (5.4 ha). We found that 40 years are not sufficient to recover species diversity after logging. Unlike unlogged forests, tree deaths and recruitments did not contribute to increased diversity in the selectively logged forests. Our results predict that selectively logged forests require a longer time at least than our observing period (40 years) to regain their diversity. PMID- 29348597 TI - Author Correction: Short-Course, High-Dose Rifampicin Achieves Wolbachia Depletion Predictive of Curative Outcomes in Preclinical Models of Lymphatic Filariasis and Onchocerciasis. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29348598 TI - Increased diversity with reduced "diversity evenness" of tumor infiltrating T cells for the successful cancer immunotherapy. AB - To facilitate the optimization of cancer immunotherapy lacking immune-related adverse events, we performed TCR repertoire analysis of tumor-infiltrating CD8+ T cells in B16 melanoma-bearing mice receiving anti-PD-1, anti-CTLA-4, anti-4-1BB, anti-CD4 or a combination of anti-PD-1 and 4-1BB antibodies. Although CD8+ T cells in the tumor were activated and expanded to a greater or lesser extent by these therapies, tumor growth suppression was achieved only by anti-PD-1, anti-PD 1/4-1BB combined, or by anti-CD4 treatment, but not by anti-CTLA-4 or anti-4-1BB monotherapy. Increased CD8+ T cell effector function and TCR diversity with enrichment of certain TCR clonotypes in the tumor was associated with anti-tumor effects. In contrast, polyclonal activation of T-cells in the periphery was associated with tissue damage. Thus, optimal combination therapy increases TCR diversity with extended activation of selective CD8+ T-cells specifically in the tumor but not in the periphery. Incorporation of the concept of evenness for the TCR diversity is proposed. PMID- 29348599 TI - In situ formation of artificial moth-eye structure by spontaneous nano-phase separation. AB - Unprecedented in situ formation of artificial moth-eye structure is demonstrated by spontaneous nano-phase separation of a silica-based system on substrate. The moth-eye thin film with a homogenously distributed nipples array shows broadband antireflection functionalities. The mechanism of nano-phase separation is unveiled as spinodal decomposition by chemical freezing method and thermodynamic analysis. The current method may provide a new avenue to ready fabrication of patterned nanostructures toward a variety of applications. PMID- 29348600 TI - Chinese olive extract ameliorates hepatic lipid accumulation in vitro and in vivo by regulating lipid metabolism. AB - Chinese olive contains plenty of polyphenols, which possess a wide range of biological actions. In this study, we aimed to investigate the role of the ethyl acetate fraction of Chinese olive fruit extract (CO-EtOAc) in the modulation of lipid accumulation in vitro and in vivo. In cellular studies, CO-EtOAc attenuated oleic acid-induced lipid accumulation; we then elucidated the molecular mechanisms of CO-EtOAc in FL83B mouse hepatocytes. CO-EtOAc suppressed the mRNA levels of fatty acid transporter genes (CD36 and FABP) and lipogenesis genes (SREBP-1c, FAS, and ACC1), but upregulated genes that govern lipolysis (HSL) and lipid oxidation (PPARalpha, CPT-1, and ACOX). Moreover, CO-EtOAc increased the protein expression of phosphorylated AMPK, ACC1, CPT-1, and PPARalpha, but downregulated the expression of mature SREBP-1c and FAS. AMPK plays an essential role in CO-EtOAc-mediated amelioration of lipid accumulation. Furthermore, we confirmed that CO-EtOAc significantly inhibited body weight gain, epididymal adipose tissue weight, and hepatic lipid accumulation via regulation of the expression of fatty acid transporter, lipogenesis, and fatty acid oxidation genes and proteins in C57BL/6 mice fed a 60% high-fat diet. Therefore, Chinese olive fruits may have the potential to improve the metabolic abnormalities associated with fatty liver under high fat challenge. PMID- 29348601 TI - Exclusion from spheroid formation identifies loss of essential cell-cell adhesion molecules in colon cancer cells. AB - Many cell lines derived from solid cancers can form spheroids, which recapitulate tumor cell clusters and are more representative of the in vivo situation than 2D cultures. During spheroid formation, a small proportion of a variety of different colon cancer cell lines did not integrate into the sphere and lost cell-cell adhesion properties. An enrichment protocol was developed to augment the proportion of these cells to 100% purity. The basis for the separation of spheroids from non-spheroid forming (NSF) cells is simple gravity-sedimentation. This protocol gives rise to sub-populations of colon cancer cells with stable loss of cell-cell adhesion. SW620 cells lacked E-cadherin, DLD-1 cells lost alpha catenin and HCT116 cells lacked P-cadherin in the NSF state. Knockdown of these molecules in the corresponding spheroid-forming cells demonstrated that loss of the respective proteins were indeed responsible for the NSF phenotypes. Loss of the spheroid forming phenotype was associated with increased migration and invasion properties in all cell lines tested. Hence, we identified critical molecules involved in spheroid formation in different cancer cell lines. We present here a simple, powerful and broadly applicable method to generate new sublines of tumor cell lines to study loss of cell-cell adhesion in cancer progression. PMID- 29348602 TI - The ten-year evolutionary trajectory of a highly recurrent paediatric high grade neuroepithelial tumour with MN1:BEND2 fusion. AB - Astroblastomas are rare brain tumours which predominate in children and young adults, and have a controversial claim as a distinct entity, with no established WHO grade. Reports suggest a better outcome than high grade gliomas, though they frequently recur. Recently, they have been described to overlap with a newly discovered group of tumours described as'high grade neuroepithelial tumour with MN1 alteration' (CNS HGNET-MN1), defined by global methylation patterns and strongly associated with gene fusions targeting MN1. We have studied a unique case of astroblastoma arising in a 6 year-old girl, with multiple recurrences over a period of 10 years, with the pathognomonic MN1:BEND2 fusion. Exome sequencing allowed for a phylogenetic reconstruction of tumour evolution, which when integrated with clinical, pathological and radiological data provide for a detailed understanding of disease progression, with initial treatment driving tumour dissemination along four distinct trajectories. Infiltration of distant sites was associated with a later genome doubling, whilst there was evidence of convergent evolution of different lesions acquiring distinct alterations targeting NF-kappaB. These data represent an unusual opportunity to understand the evolutionary history of a highly recurrent childhood brain tumour, and provide novel therapeutic targets for astroblastoma/CNS HGNET-MN1. PMID- 29348603 TI - Comprehensive list of SUMO targets in Caenorhabditis elegans and its implication for evolutionary conservation of SUMO signaling. AB - Post-translational modification by small ubiquitin-related modifier (SUMO) is a key regulator of cell physiology, modulating protein-protein and protein-DNA interactions. Recently, SUMO modifications were postulated to be involved in response to various stress stimuli. We aimed to identify the near complete set of proteins modified by SUMO and the dynamics of the modification in stress conditions in the higher eukaryote, Caenorhabditis elegans. We identified 874 proteins modified by SUMO in the worm. We have analyzed the SUMO modification in stress conditions including heat shock, DNA damage, arsenite induced cellular stress, ER and osmotic stress. In all these conditions the global levels of SUMOylation was significantly increased. These results show the evolutionary conservation of SUMO modifications in reaction to stress. Our analysis showed that SUMO targets are highly conserved throughout species. By comparing the SUMO targets among species, we approximated the total number of proteins modified in a given proteome to be at least 15-20%. We developed a web server designed for convenient prediction of potential SUMO modification based on experimental evidences in other species. PMID- 29348605 TI - Co-selected mutations in VCP: a novel mechanism of resistance to VCP inhibitors. PMID- 29348604 TI - Cromolyn Reduces Levels of the Alzheimer's Disease-Associated Amyloid beta Protein by Promoting Microglial Phagocytosis. AB - Amyloid-beta protein (Abeta) deposition is a pathological hallmark of Alzheimer's disease (AD). Abeta deposition triggers both pro-neuroinflammatory microglial activation and neurofibrillary tangle formation. Cromolyn sodium is an asthma therapeutic agent previously shown to reduce Abeta levels in transgenic AD mouse brains after one-week of treatment. Here, we further explored these effects as well as the mechanism of action of cromolyn, alone, and in combination with ibuprofen in APPSwedish-expressing Tg2576 mice. Mice were treated for 3 months starting at 5 months of age, when the earliest stages of beta-amyloid deposition begin. Cromolyn, alone, or in combination with ibuprofen, almost completely abolished longer insoluble Abeta species, i.e. Abeta40 and Abeta42, but increased insoluble Abeta38 levels. In addition to its anti-aggregation effects on Abeta, cromolyn, alone, or plus ibuprofen, but not ibuprofen alone, increased microglial recruitment to, and phagocytosis of beta-amyloid deposits in AD mice. Cromolyn also promoted Abeta42 uptake in microglial cell-based assays. Collectively, our data reveal robust effects of cromolyn, alone, or in combination with ibuprofen, in reducing aggregation-prone Abeta levels and inducing a neuroprotective microglial activation state favoring Abeta phagocytosis versus a pro neuroinflammatory state. These findings support the use of cromolyn, alone, or with ibuprofen, as a potential AD therapeutic. PMID- 29348606 TI - AMP-activated protein kinase agonist N6-(3-hydroxyphenyl)adenosine protects against fulminant hepatitis by suppressing inflammation and apoptosis. AB - Both AMP-activated protein kinase (AMPK) agonist and inhibitor have been reported to protect against fulminant hepatitis, implying that AMPK may play a complicated role in the development of fulminant hepatitis. In this study, we exploited whether the novel AMPK agonist N6-(3-hydroxyphenyl)adenosine (named as M1) exerted protective effects on fulminant hepatitis and whether its beneficial effects were AMPK-dependent. Results showed that intraperitoneal injection of M1 improved liver function, ameliorated liver injury and finally raised the survival rate in D-galactosamine/lipopolysaccharide (GalN/LPS)-treated mice. These beneficial effects of M1 may attribute to the suppression of pro-inflammatory cytokines production and the prevention of hepatocyte apoptosis. Furthermore, M1 pretreatment mitigated LPS-stimulated TLR4 expression and NFkappaB activation in murine peritoneal macrophages and prevented actinomycin D (Act D)/tumor necrosis factor alpha (TNFalpha)-induced apoptosis by promoting protective autophagy in primary hepatocytes. Additionally, M1-induced AMPK activation was responsible both for its anti-inflammatory action in macrophages and for its anti-apoptotic action in hepatocytes. To our surprise, compared with the control AMPKalpha1lox/lox/AMPKalpha2lox/lox mice, liver-specific AMPKalpha1 knockout (AMPKalpha1LS-/-) mice were more sensitive to GalN/LPS administration but not AMPKalpha2LS-/-mice, and the beneficial effects of M1 on acute liver failure and the production of pro-inflammatory factors were dampened in AMPKalpha1LS-/- mice. Therefore, our study may prove that M1 could be a promising therapeutic agent for fulminant hepatitis, and targeting AMPK may be useful therapeutically in the control of LPS-induced hepatotoxicity. PMID- 29348607 TI - Evaluation of mitochondrial bioenergetics, dynamics, endoplasmic reticulum mitochondria crosstalk, and reactive oxygen species in fibroblasts from patients with complex I deficiency. AB - Mitochondrial complex I (CI) deficiency is the most frequent cause of oxidative phosphorylation (OXPHOS) disorders in humans. In order to benchmark the effects of CI deficiency on mitochondrial bioenergetics and dynamics, respiratory chain (RC) and endoplasmic reticulum (ER)-mitochondria communication, and superoxide production, fibroblasts from patients with mutations in the ND6, NDUFV1 or ACAD9 genes were analyzed. Fatty acid metabolism, basal and maximal respiration, mitochondrial membrane potential, and ATP levels were decreased. Changes in proteins involved in mitochondrial dynamics were detected in various combinations in each cell line, while variable changes in RC components were observed. ACAD9 deficient cells exhibited an increase in RC complex subunits and DDIT3, an ER stress marker. The level of proteins involved in ER-mitochondria communication was decreased in ND6 and ACAD9 deficient cells. |DeltaPsi| and cell viability were further decreased in all cell lines. These findings suggest that disruption of mitochondrial bioenergetics and dynamics, ER-mitochondria crosstalk, and increased superoxide contribute to the pathophysiology in patients with ACAD9 deficiency. Furthermore, treatment of ACAD9 deficient cells with JP4-039, a novel mitochondria-targeted reactive oxygen species, electron and radical scavenger, decreased superoxide level and increased basal and maximal respiratory rate, identifying a potential therapeutic intervention opportunity in CI deficiency. PMID- 29348608 TI - Phytase overexpression in Arabidopsis improves plant growth under osmotic stress and in combination with phosphate deficiency. AB - Engineering osmotolerant plants is a challenge for modern agriculture. An interaction between osmotic stress response and phosphate homeostasis has been reported in plants, but the identity of molecules involved in this interaction remains unknown. In this study we assessed the role of phytic acid (PA) in response to osmotic stress and/or phosphate deficiency in Arabidopsis thaliana. For this purpose, we used Arabidopsis lines (L7 and L9) expressing a bacterial beta-propeller phytase PHY-US417, and a mutant in inositol polyphosphate kinase 1 gene (ipk1-1), which were characterized by low PA content, 40% (L7 and L9) and 83% (ipk1-1) of the wild-type (WT) plants level. We show that the PHY overexpressor lines have higher osmotolerance and lower sensitivity to abscisic acid than ipk1-1 and WT. Furthermore, PHY-overexpressors showed an increase by more than 50% in foliar ascorbic acid levels and antioxidant enzyme activities compared to ipk1-1 and WT plants. Finally, PHY-overexpressors are more tolerant to combined mannitol stresses and phosphate deficiency than WT plants. Overall, our results demonstrate that the modulation of PA improves plant growth under osmotic stress, likely via stimulation of enzymatic and non-enzymatic antioxidant systems, and that beside its regulatory role in phosphate homeostasis, PA may be also involved in fine tuning osmotic stress response in plants. PMID- 29348609 TI - Effects of vitamin D supplementation on inflammatory markers in heart failure: a systematic review and meta-analysis of randomized controlled trials. AB - Vitamin D is reported to have anti-inflammatory properties; however the effects of vitamin D supplementation on inflammation in patients with heart failure (HF) have not been established. We performed a systematic review and meta-analysis examining effects of vitamin D supplementation on inflammatory markers in patients with HF. MEDLINE, CINAHL, EMBASE, All EBM, and Clinical Trials registries were systematically searched for RCTs from inception to 25 January 2017. Two independent reviewers screened all full text articles (no date or language limits) for RCTs reporting effects of vitamin D supplementation (any form, route, duration, and co-supplementation) compared with placebo or usual care on inflammatory markers in patients with heart failure. Two reviewers assessed risk of bias and quality using the grading of recommendations, assessment, development, and evaluation approach. Seven studies met inclusion criteria and six had data available for pooling (n = 1012). In meta-analyses, vitamin D-supplemented groups had lower concentrations of tumor necrosis factor alpha (TNF-alpha) at follow-up compared with controls (n = 380; p = 0.04). There were no differences in C-reactive protein (n = 231), interleukin (IL)-10 (n = 247) or IL-6 (n = 154) between vitamin D and control groups (all p > 0.05). Our findings suggest that vitamin D supplementation may have specific, but modest effects on inflammatory markers in HF. PMID- 29348610 TI - The histone methyltransferase DOT1L inhibits osteoclastogenesis and protects against osteoporosis. AB - Osteoclasts are absorptive cells that play a critical role in homeostatic bone remodeling and pathological bone resorption. Emerging evidence suggests an important role of epigenetic regulation in osteoclastogenesis. In this study, we investigated the role of DOT1L, which regulates gene expression epigenetically by histone H3K79 methylation (H3K79me), during osteoclast formation. Using RANKL induced RAW264.7 macrophage cells as an osteoclast differentiation model, we found that DOT1L and H3K79me2 levels were upregulated during osteoclast differentiation. Small molecule inhibitor- (EPZ5676 or EPZ004777) or short hairpin RNA-mediated reduction in DOT1L expression promoted osteoclast differentiation and resorption. In addition, DOT1L inhibition increased osteoclast surface area and accelerated bone-mass reduction in a mouse ovariectomy (OVX) model of osteoporosis without alter osteoblast differentiation. DOT1L inhibition increase reactive oxygen species (ROS) generation and autophagy activity, and cell migration in pre-osteoclasts. Moreover, it strengthened expression of osteoclast fusion and resorption-related protein CD9 and MMP9 in osteoclasts derived from RAW264.7. Our findings support a new mechanism of DOT1L regulated, H3K79me2-mediated, epigenetic regulation of osteoclast differentiation, implicating DOT1L as a new therapeutic target for osteoclast dysregulation-induced disease. PMID- 29348611 TI - Prediction is Production: The missing link between language production and comprehension. AB - Language comprehension often involves the generation of predictions. It has been hypothesized that such prediction-for-comprehension entails actual language production. Recent studies provided evidence that the production system is recruited during language comprehension, but the link between production and prediction during comprehension remains hypothetical. Here, we tested this hypothesis by comparing prediction during sentence comprehension (primary task) in participants having the production system either available or not (non-verbal versus verbal secondary task). In the primary task, sentences containing an expected or unexpected target noun-phrase were presented during electroencephalography recording. Prediction, measured as the magnitude of the N400 effect elicited by the article (expected versus unexpected), was hindered only when the production system was taxed during sentence context reading. The present study provides the first direct evidence that the availability of the speech production system is necessary for generating lexical prediction during sentence comprehension. Furthermore, these important results provide an explanation for the recruitment of language production during comprehension. PMID- 29348613 TI - Solar system expansion and strong equivalence principle as seen by the NASA MESSENGER mission. AB - The NASA MESSENGER mission explored the innermost planet of the solar system and obtained a rich data set of range measurements for the determination of Mercury's ephemeris. Here we use these precise data collected over 7 years to estimate parameters related to general relativity and the evolution of the Sun. These results confirm the validity of the strong equivalence principle with a significantly refined uncertainty of the Nordtvedt parameter eta = (-6.6 +/- 7.2) * 10-5. By assuming a metric theory of gravitation, we retrieved the post Newtonian parameter beta = 1 + (-1.6 +/- 1.8) * 10-5 and the Sun's gravitational oblateness, [Formula: see text] = (2.246 +/- 0.022) * 10-7. Finally, we obtain an estimate of the time variation of the Sun gravitational parameter, [Formula: see text] = (-6.13 +/- 1.47) * 10-14, which is consistent with the expected solar mass loss due to the solar wind and interior processes. This measurement allows us to constrain [Formula: see text] to be <4 * 10-14 per year. PMID- 29348612 TI - GWAS in childhood acute lymphoblastic leukemia reveals novel genetic associations at chromosomes 17q12 and 8q24.21. AB - Childhood acute lymphoblastic leukemia (ALL) (age 0-14 years) is 20% more common in Latino Americans than non-Latino whites. We conduct a genome-wide association study in a large sample of 3263 Californian children with ALL (including 1949 of Latino heritage) and 3506 controls matched on month and year of birth, sex, and ethnicity, and an additional 12,471 controls from the Kaiser Resource for Genetic Epidemiology Research on Aging Cohort. Replication of the strongest genetic associations is performed in two independent datasets from the Children's Oncology Group and the California Childhood Leukemia Study. Here we identify new risk loci on 17q12 near IKZF3/ZPBP2/GSDMB/ORMDL3, a locus encompassing a transcription factor important for lymphocyte development (IKZF3), and at an 8q24 region known for structural contacts with the MYC oncogene. These new risk loci may impact gene expression via local (four 17q12 genes) or long-range (8q24) interactions, affecting function of well-characterized hematopoietic and growth regulation pathways. PMID- 29348614 TI - Noise-induced bistability in the fate of cancer phenotypic quasispecies: a bit strings approach. AB - Tumor cell populations are highly heterogeneous. Such heterogeneity, both at genotypic and phenotypic levels, is a key feature during tumorigenesis. How to investigate the impact of this heterogeneity in the dynamics of tumors cells becomes an important issue. Here we explore a stochastic model describing the competition dynamics between a pool of heterogeneous cancer cells with distinct phenotypes and healthy cells. This model is used to explore the role of demographic fluctuations on the transitions involving tumor clearance. Our results show that for large population sizes, when demographic fluctuations are negligible, there exists a sharp transition responsible for tumor cells extinction at increasing tumor cells' mutation rates. This result is consistent with a mean field model developed for the same system. The mean field model reveals only monostability scenarios, in which either the dominance of the tumor cells or the dominance of the healthy cells is found. Interestingly, the stochastic model shows that for small population sizes the monostability behavior disappears, involving the presence of noise-induced bistability. The impact of the initial populations of cells in the fate of the cell populations is investigated, as well as the transient times towards the healthy and the cancer states. PMID- 29348615 TI - Nucleation and Ostwald Growth of Particles in Fe-O-Al-Ca Melt. AB - Tremendous focus has been put on the control of particle size distribution which effects the grain structure and mechanical properties of resulting metallic materials, and thus nucleation and growth of particles in solution should be clarified. This study uses classical nucleation theory and Ostwald ripening theory to probe the relationship between the compositions of Fe-O-Al-Ca melts and the behavior of particles under the condition of no external stirring. Our experimental data suggest that decreasing the initial Ca addition and Al addition is conductive to the increase of nucleation rate for calcium aluminate particles, which exhibits a same change trend with that predicted from classical nucleation theory. Based on the experimental evidence for particles size distribution in three-dimensional, we demonstrate that Ostwald ripening is the predominate mechanism on the coarsening of particles in Fe-O-Al-Ca melt at early stage of deoxidation under the condition of no external stirring but not at later stage. PMID- 29348616 TI - Fast and effective mitochondrial delivery of omega-Rhodamine-B-polysulfobetaine PEG copolymers. AB - Mitochondrial targeting and entry, two crucial steps in fighting severe diseases resulting from mitochondria dysfunction, pose important challenges in current nanomedicine. Cell-penetrating peptides or targeting groups, such as Rhodamine-B (Rho), are known to localize in mitochondria, but little is known on how to enhance their effectiveness through structural properties of polymeric carriers. To address this issue, we prepared 8 copolymers of 3 dimethyl(methacryloyloxyethyl)ammonium propane sulfonate and poly(ethyleneglycol) methacrylate, p(DMAPS-ran-PEGMA) (molecular weight, 18.0 < M n < 74.0 kg/mol) with two different endgroups. We labeled them with Rho groups attached along the chain or on one of the two endgroups (alpha or omega). From studies by flow cytometry and confocal fluorescence microscopy of the copolymers internalization in HeLa cells in the absence and presence of pharmacological inhibitors, we established that the polymers cross the cell membrane foremost by translocation and also by endocytosis, primarily clathrin-dependent endocytosis. The most effective mitochondrial entry was achieved by copolymers of M n < 30.0 kg/mol, lightly grafted with PEG chains (< 5 mol %) labeled with Rho in the omega position. Our findings may be generalized to the uptake and mitochondrial targeting of prodrugs and imaging agents with a similar polymeric scaffold. PMID- 29348617 TI - Neuronal lysosomal dysfunction releases exosomes harboring APP C-terminal fragments and unique lipid signatures. AB - Defects in endolysosomal and autophagic functions are increasingly viewed as key pathological features of neurodegenerative disorders. A master regulator of these functions is phosphatidylinositol-3-phosphate (PI3P), a phospholipid synthesized primarily by class III PI 3-kinase Vps34. Here we report that disruption of neuronal Vps34 function in vitro and in vivo impairs autophagy, lysosomal degradation as well as lipid metabolism, causing endolysosomal membrane damage. PI3P deficiency also promotes secretion of unique exosomes enriched for undigested lysosomal substrates, including amyloid precursor protein C-terminal fragments (APP-CTFs), specific sphingolipids, and the phospholipid bis(monoacylglycero)phosphate (BMP), which normally resides in the internal vesicles of endolysosomes. Secretion of these exosomes requires neutral sphingomyelinase 2 and sphingolipid synthesis. Our results reveal a homeostatic response counteracting lysosomal dysfunction via secretion of atypical exosomes eliminating lysosomal waste and define exosomal APP-CTFs and BMP as candidate biomarkers for endolysosomal dysfunction associated with neurodegenerative disorders. PMID- 29348618 TI - Epigallocatechin gallate (EGCG) reduces the intensity of pancreatic amyloid fibrils in human islet amyloid polypeptide (hIAPP) transgenic mice. AB - The formation of amyloid fibrils by human islet amyloid polypeptide protein (hIAPP) has been implicated in pancreas dysfunction and diabetes. However, efficient treatment options to reduce amyloid fibrils in vivo are still lacking. Therefore, we tested the effect of epigallocatechin gallate (EGCG) on fibril formation in vitro and in vivo. To determine the binding of hIAPP and EGCG, in vitro interaction studies were performed. To inhibit amyloid plaque formation in vivo, homozygous (tg/tg), hemizygous (wt/tg), and control mice (wt/wt) were treated with EGCG. EGCG bound to hIAPP in vitro and induced formation of amorphous aggregates instead of amyloid fibrils. Amyloid fibrils were detected in the pancreatic islets of tg/tg mice, which was associated with disrupted islet structure and diabetes. Although pancreatic amyloid fibrils could be detected in wt/tg mice, these animals were non-diabetic. EGCG application decreased amyloid fibril intensity in wt/tg mice, however it was ineffective in tg/tg animals. Our data indicate that EGCG inhibits amyloid fibril formation in vitro and reduces fibril intensity in non-diabetic wt/tg mice. These results demonstrate a possible in vivo effectiveness of EGCG on amyloid formation and suggest an early therapeutical application. PMID- 29348619 TI - Cytokine-mediated changes in K+ channel activity promotes an adaptive Ca2+ response that sustains beta-cell insulin secretion during inflammation. AB - Cytokines present during low-grade inflammation contribute to beta-cell dysfunction and diabetes. Cytokine signaling disrupts beta-cell glucose stimulated Ca2+ influx (GSCI) and endoplasmic reticulum (ER) Ca2+ ([Ca2+]ER) handling, leading to diminished glucose-stimulated insulin secretion (GSIS). However, cytokine-mediated changes in ion channel activity that alter beta-cell Ca2+ handling remain unknown. Here we investigated the role of K+ currents in cytokine-mediated beta-cell dysfunction. Kslow currents, which control the termination of intracellular Ca2+ ([Ca2+]i) oscillations, were reduced following cytokine exposure. As a consequence, [Ca2+]i and electrical oscillations were accelerated. Cytokine exposure also increased basal islet [Ca2+]i and decreased GSCI. The effect of cytokines on TALK-1 K+ currents were also examined as TALK-1 mediates Kslow by facilitating [Ca2+]ER release. Cytokine exposure decreased KCNK16 transcript abundance and associated TALK-1 protein expression, increasing [Ca2+]ER storage while maintaining 2nd phase GSCI and GSIS. This adaptive Ca2+ response was absent in TALK-1 KO islets, which exhibited decreased 2nd phase GSCI and diminished GSIS. These findings suggest that Kslow and TALK-1 currents play important roles in altered beta-cell Ca2+ handling and electrical activity during low-grade inflammation. These results also reveal that a cytokine-mediated reduction in TALK-1 serves an acute protective role in beta-cells by facilitating increased Ca2+ content to maintain GSIS. PMID- 29348620 TI - A vacuolar sorting receptor-independent sorting mechanism for storage vacuoles in soybean seeds. AB - The seed storage proteins of soybean (Glycine max) are composed mainly of glycinin (11S globulin) and beta-conglycinin (7S globulin). The subunits of glycinin (A1aB1b, A1bB2, A2B1a, A3B4, and A5A4B3) are synthesized as a single polypeptide precursor. These precursors are assembled into trimers with a random combination of subunits in the endoplasmic reticulum, and are sorted to the protein storage vacuoles. Proteins destined for transport to protein storage vacuoles possess a vacuolar sorting determinant, and in this regard, the A1aB1b subunit contains a C-terminal peptide that is sufficient for its sorting to protein storage vacuoles. The A3B4 subunit, however, lacks a corresponding C terminal sorting determinant. In this study, we found that, unlike the A1aB1b subunit, the A3B4 subunit does not bind to previously reported vacuolar sorting receptors. Despite this difference, we observed that the A3B4 subunit is sorted to protein storage vacuoles in a transgenic soybean line expressing the A3B4 subunit of glycinin. These results indicate that a protein storage vacuolar sorting mechanism that functions independently of the known vacuolar sorting receptors in seeds might be present in soybean seeds. PMID- 29348621 TI - Dynamic cellular maps of molecular species: Application to drug-target interactions. AB - The design of living cell studies aimed at deciphering the mechanism of action of drugs targeting proteins with multiple functions, expressed in a wide range of concentrations and cellular locations, is a real challenge. We recently showed that the antitumor drug plitidepsin (APL) localizes sufficiently close to the elongation factor eEF1A2 so as to suggest the formation of drug-protein complexes in living cells. Here we present an extension of our previous micro-spectroscopy study, that combines Generalized Polarization (GP) images, with the phasor approach and fluorescence lifetime imaging microscopy (FLIM), using a 7 aminocoumarin drug analog (APL*) as fluorescence tracer. Using the proposed methodology, we were able to follow in real time the formation and relative distribution of two sets of APL-target complexes in live cells, revealing two distinct patterns of behavior for HeLa-wt and APL resistant HeLa-APL-R cells. The information obtained may complement and facilitate the design of new experiments and the global interpretation of the results obtained with other biochemical and cell biology methods, as well as possibly opening new avenues of study to decipher the mechanism of action of new drugs. PMID- 29348622 TI - A novel method of utilizing skinfolds and bioimpedance for determining body fat percentage via a field-based three-compartment model. AB - BACKGROUND/OBJECTIVES: The purpose was to determine if skinfolds (SF) and bioelectrical impedance analysis (BIA) could provide accurate estimates of body volume (BV) and total body water (TBW), respectively, for use in a 3-compartment (3-C) model to estimate percent body fat (BF%) when compared to laboratory derived measures. SUBJECTS/METHODS: A sample of sixty-four men (age = 22.9 +/- 5.4 years) and 59 women (age = 21.6 +/- 4.3 years) participated in the study. Laboratory 3-C (3CLAB) model BF% was determined with underwater weighing for body volume (BV) and bioimpedance spectroscopy for total body water (TBW). The 3-C field (3CFIELD) estimates of BF% included BV from the 7-site SF technique and TBW from hand-to-foot BIA. RESULTS: A significant difference in BF% (p < 0.01) was found between the 3CLAB and 3CFIELD in the entire sample and within the men, but the effect sizes (ES) were small (0.09 and 0.17, respectively). The difference between means was not significant in the women (ES = 0.05, p = 0.332). Compared to the 3CLAB, the total error (TE) ranged 2.2-2.4% for 3CFIELD, 5.7-5.8% for SF, and 4.0-4.6% for BIA. CONCLUSIONS: The findings suggest that BV and TBW derived from SF and BIA, respectively, can be used in a 3CFIELD model to increase the accuracy of BF% estimates over SF and BIA alone. PMID- 29348623 TI - Fetal vitamin D concentration and growth, adiposity and neurodevelopment during infancy. AB - BACKGROUND/OBJECTIVES: To determine the association between cord blood 25 hydroxyvitamin D (25(OH)D) concentration with growth, adiposity and neurodevelopment during infancy. SUBJECTS/METHODS: Serum 25(OH)D was measured in cord blood by the liquid chromatography tandem mass spectrometry (LC-MS/MS) from the Shanghai's "Allergy and Obesity Cohort study" (n = 1244). Weight, length, head circumference, and body mass index (BMI) z-scores for age were calculated based on World Health Organization Standard (at 6 months, 1 years, and 2 years). Neurodevelopment was measured at 2 years using Ages and Stages Questionnaire. Generalized estimating equation and multivariable logistic regression model were exploited to examine associations between fetal 25(OH)D concentration and offspring outcomes. RESULTS: The median of the 25(OH)D concentration in cord blood was 22.4 ng/ml (interquartile range, 27.3-8.6). Infants born in winter had lower 25(OH)D concentration. 25(OH)D deficiency was not associated with weight z score (mean difference, 0.07; 95% confidence internal (CI), -0.09 to 0.23), length z-score (mean difference, 0.01; 95% CI, -0.19 to 0.21), head circumference z-score (mean difference, -0.06; 95% CI, -0.27 to 0.15) and BMI z-score (mean difference, 0.09; 95% CI, -0.07 to 0.25) or neurodevelopment during infancy, adjusting for sex, socio-economic position, pre-pregnancy maternal BMI, and maternal and neonatal characteristics. The associations did not vary by gender. A sensitivity analysis of available case analysis showed virtually the same results. CONCLUSIONS: Fetal vitamin D concentration was not associated with growth, adiposity or neurodevelopment during infancy. The role of vitamin D concentration and its mechanistic pathway in the early origins of adiposity needs to be clarified. PMID- 29348624 TI - Soy food and isoflavone intake reduces the risk of cognitive impairment in elderly Japanese women. AB - Data were derived from the National Institute for Longevity Sciences-Longitudinal Study of Aging. Subjects comprised 403 men and 373 women aged 60-81 years at baseline who participated in the follow-up study at least once. Bean, soy product and soy isoflavone intake was assessed using a 3-day dietary record at baseline. Cognitive function was assessed by the Mini-Mental State Examination (MMSE). MMSE scores of <=23 were used to define cognitive impairment. The relationship between bean, soy product and soy isoflavone intake and cognitive impairment was assessed using a generalized estimating equation. Multivariate-adjusted odds ratios (95% confidence intervals) for cognitive impairment with a 1 s.d. increase in total bean, total soybean and total soy isoflavone intakes were 0.48 (0.28-0.81; p = 0.006), 0.51 (0.32-0.83; p = 0.007), and 0.55 (0.32-0.93; p = 0.026), respectively, in women. Total soybean and soy isoflavone intake might decrease the risk of cognitive impairment in elderly Japanese women. PMID- 29348625 TI - Universal type/subtype-specific antibodies for quantitative analyses of neuraminidase in trivalent influenza vaccines. AB - Both influenza viral hemagglutinin and neuraminidase can induce protective immune responses in humans. Although the viral hemagglutinin antigens have been quantified in influenza vaccines, the amounts of neuraminidase remain undetermined. Using comprehensive bioinformatics analyses of all neuraminidase sequences, we identified highly conserved and subtype-specific peptide epitopes within each of N1, N2 and type B neuraminidase groups. Mono-specific antibodies generated against these peptides bound to their respective subtype/type only while demonstrating remarkable specificity against the viral neuraminidase sequences without any cross-reactivity with allantoic and cellular proteins. Moreover, the subtype/type-specific antibodies were found not to interfere with one another when a mixture of vaccine samples was analysed. Importantly, immunoassay based on these antibodies can quantitatively determine neuraminidase in commercial trivalent vaccine samples. Analyses of vaccines from eight manufacturers using the same vaccine seeds revealed significant differences in neuraminidase levels. Specifically, while the ratio between neuraminidase and hemagglutinin in some products are found to be close 1/5, other products have a ratio of approximately 1/100, a level which is far below the theoretical ratio between neuraminidase and hemagglutinin in a virus. The antibody-based assays reported here could be of great value for better quality control of both monovalent and trivalent vaccines. PMID- 29348626 TI - Arabidopsis serine/threonine/tyrosine protein kinase phosphorylates oil body proteins that regulate oil content in the seeds. AB - Protein phosphorylation is an important post-translational modification that can regulate the protein function. The current knowledge on the phosphorylation status of plant oil body (OB) proteins is inadequate. This present study identifies the distinct physiological substrates of Arabidopsis serine/threonine/tyrosine protein kinase (STYK) and its role in seed oil accumulation; the role of Arabidopsis OLE1, a major seed OB protein has also been elucidated. In vitro kinase assay followed by mass spectrometry identifies residue that are phosphorylated by STYK. Further, co-expression of OLE1 and STYK in yeast cells increases the cellular lipid levels and reduces the total lipid when OLE1 was replaced with OLE1T166A. Moreover, in vivo experiments with OB isolated from wild-type and styk knock-out lines show the ability of STYK to phosphorylate distinct OB proteins. OLE1T166A mutant and Arabidopsis styk mutant demonstrate the significant reduction of its substrate phosphorylation. styk mutant line significantly reduces the amount of total seed oil as compared to wild-type seeds. Together, our results provide the evidences that Arabidopsis At2G24360 (STYK) is phosphorylating oil body proteins and the phosphorylation regulates the oil content in Arabidopsis seeds. PMID- 29348627 TI - Chikungunya virus nsP1 interacts directly with nsP2 and modulates its ATPase activity. AB - Chikungunya virus (CHIKV) is a mosquito-borne virus, which has created an alarming threat in the world due to unavailability of vaccine and antiviral compounds. The CHIKV nsP2 contains ATPase, RTPase, helicase and protease activities, whereas, nsP1 is a viral capping enzyme. In alphaviruses, the four non-structural proteins form the replication complex in the cytoplasm and this study characterizes the interaction between CHIKV nsP1 and nsP2. It was observed that, both the proteins co-localize in the cytoplasm and interact in the CHIKV infected cells by confocal microscopy and immunoprecipitation assay. Further, it was demonstrated through mutational analysis that, the amino acids 1-95 of nsP2 and 170-288 of nsP1 are responsible for their direct interaction. Additionally, it was noticed that, the ATPase activity of nsP2 is enhanced in the presence of nsP1, indicating the functional significance of this interaction. In silico analysis showed close (<=1.7 A) polar interaction (hydrogen bond) between Glu4, Arg7, 96, 225 of nsP2 with Lys256, 206, Val367 and Phe312 of nsP1 respectively. Hence, this investigation provides molecular characterization of CHIKV nsP1-nsP2 interaction which might be a useful target for rational designing of antiviral drugs. PMID- 29348628 TI - FEZF1-AS1/miR-107/ZNF312B axis facilitates progression and Warburg effect in pancreatic ductal adenocarcinoma. AB - Long non-coding RNAs (lncRNAs) play a pivotal role in pathological processes. However, little information has been published regarding the underlying functions and mechanisms of lncRNAs in pancreatic ductal adenocarcinoma (PDAC). A novel lncRNA FEZF1-AS1 and its sense-cognate gene ZNF312B were found to be highly expressed in human PDAC tissues and cell lines, which is associated with disease progression and predicts clinical outcome in PDAC patients. Of note, bioinformatics analysis, luciferase assays and RNA immunoprecipitation assays indicated that FEZF1-AS1 may act as an endogenous sponge by competing for miR 107, thereby modulating the derepression of ZNF312B. Downregulation of FEZF1-AS1 or ZNF312B significantly inhibited proliferation, colony formation, migration, and invasion of PDAC cells in vitro, whereas the miR-107 inhibitor abrogated the effect of dow-regulation of FEZF1-AS1 or ZNF312B in reducing oncogenic capacities of PDAC cells. In addition, FEZF1-AS1/miR-107/ZNF312B axis-induced promotion of PDAC cells proliferation appeared to be mediated by modulation of the apoptosis and the G1-S checkpoint. Furthermore, downregulation of FEZF1-AS1 repressed tumor growth in mouse xenograft models. In particular, our results highlight the contribution of FEZF1-AS1/miR-107/ZNF312B axis to Warburg effect maintenance of PDAC cells. Collectively, our findings demonstrate that the FEZF1-AS1/miR 107/ZNF312B axis regulatory network might provide a potential new therapeutic strategy for PDAC. PMID- 29348629 TI - The suppressive role of calcium sensing receptor in endometrial cancer. AB - Studies have shown that calcium sensing receptor (CaSR) is involved in the progressions of several human cancers. However, the role of CaSR in endometrial cancer remains unknown. This study provides a preliminary analysis of the CaSR effect on endometrial cancer development. Ectopic CaSR expression by lentiviral transfection (CaSR-OV) in Ishikawa cells significantly increased intracellular calcium ([Ca2+]i) levels and cell apoptosis. E-cadherin and beta-catenin expression and complex formation at the membrane were increased in CaSR-OV Ishikawa cells relative to control Ishikawa cells (vector). Furthermore, CaSR-OV Ishikawa cells showed a reduced invasive potential, which was attributed to E cadherin/beta-catenin complex formation. Moreover, a reduction in CaSR expression in endometrial cancer relative to normal specimens was evident by immunohistochemistry and was positively associated with E-cadherin, but not beta catenin, expression. Furthermore, VEGFR3 was significantly down-regulated in CaSR OV Ishikawa cells. Additionally, an immunohistochemical analysis showed that VEGFR3 was significantly increased in endometrial cancer compared with the normal endometrium and was inversely correlated with CaSR expression. However, the CaSR knockdown produced the opposite effects. These findings suggest an inhibitory role for CaSR in endometrial cancer. Therefore, reduced CaSR expression may be a suitable explanation and valuable predictor for endometrial cancer progression. PMID- 29348630 TI - Expression of inflammasome proteins and inflammasome activation occurs in human, but not in murine keratinocytes. AB - Inflammasomes are multimeric protein complexes that assemble upon sensing of a variety of stress factors. Their formation results in caspase-1-mediated activation and secretion of the pro-inflammatory cytokines pro-interleukin(IL) 1beta and -18, which induce an inflammatory response. Inflammation is supported by a lytic form of cell death, termed pyroptosis. Innate immune cells, such as macrophages or dendritic cells, express and activate inflammasomes. However, it has also been demonstrated that human primary keratinocytes activate different types of inflammasomes in vitro, for example, upon UVB irradiation or viral infection. Keratinocytes are the main cell type of the epidermis, the outermost layer of the body, and form a protective barrier consisting of a stratified multi layered epithelium. In human, gain-of-function mutations of the NLRP1 gene cause syndromes mediated by inflammasome activation in keratinocytes that are characterised by skin inflammation and skin cancer susceptibility. Here we demonstrate that murine keratinocytes do not activate inflammasomes in response to stimuli, which induce IL-1beta and -18 secretion by human keratinocytes. Whereas murine keratinocytes produced caspase-1 and proIL-18, expression of the inflammasome proteins Nlrp1, Nlrp3, Aim2, Asc, and proIL-1beta was, compared to human keratinocytes or murine dendritic cells, very low or even undetectable. Priming of murine keratinocytes with cytokines commonly used for induction of proIL-1beta and inflammasome protein expression did not rescue inflammasome activation. Nevertheless, UVB-induced inflammation and neutrophil recruitment in murine skin was dependent on IL-1beta and caspase-1. However, also under these conditions, we did not detect expression of proIL-1beta by keratinocytes in murine skin, but by immune cells. These results demonstrate a higher immunological competence of human compared to murine keratinocytes, which is reflected by stress-induced IL-1beta secretion that is mediated by inflammasomes. Therefore, keratinocytes in human skin can exert immune functions, which are carried out by professional immune cells in murine skin. PMID- 29348631 TI - Dynamic all-optical drug screening on cardiac voltage-gated ion channels. AB - Voltage-gated ion channels (VGCs) are prime targets for the pharmaceutical industry, but drug profiling on VGCs is challenging, since drug interactions are confined to specific conformational channel states mediated by changes in transmembrane potential. Here we combined various optogenetic tools to develop dynamic, high-throughput drug profiling assays with defined light-step protocols to interrogate VGC states on a millisecond timescale. We show that such light induced electrophysiology (LiEp) yields high-quality pharmacological data with exceptional screening windows for drugs acting on the major cardiac VGCs, including hNav1.5, hKv1.5 and hERG. LiEp-based screening remained robust when using a variety of optogenetic actuators (ChR2, ChR2(H134R), CatCh, ChR2-EYFP betaArchT) and different types of organic (RH421, Di-4-ANBDQPQ, BeRST1) or genetic voltage sensors (QuasAr1). The tractability of LiEp allows a versatile and precise alternative to state-of-the-art VGC drug screening platforms such as automated electrophysiology or FLIPR readers. PMID- 29348632 TI - Climate Degradation and Extreme Icing Events Constrain Life in Cold-Adapted Mammals. AB - Despite the growth in knowledge about the effects of a warming Arctic on its cold adapted species, the mechanisms by which these changes affect animal populations remain poorly understood. Increasing temperatures, declining sea ice and altered wind and precipitation patterns all may affect the fitness and abundance of species through multiple direct and indirect pathways. Here we demonstrate previously unknown effects of rain-on-snow (ROS) events, winter precipitation, and ice tidal surges on the Arctic's largest land mammal. Using novel field data across seven years and three Alaskan and Russian sites, we show arrested skeletal growth in juvenile muskoxen resulting from unusually dry winter conditions and gestational ROS events, with the inhibitory effects on growth from ROS events lasting up to three years post-partum. Further, we describe the simultaneous entombment of 52 muskoxen in ice during a Chukchi Sea winter tsunami (ivuniq in Inupiat), and link rapid freezing to entrapment of Arctic whales and otters. Our results illustrate how once unusual, but increasingly frequent Arctic weather events affect some cold-adapted mammals, and suggest that an understanding of species responses to a changing Arctic can be enhanced by coalescing groundwork, rare events, and insights from local people. PMID- 29348633 TI - Contrasting patterns of prehistoric human diet and subsistence in northernmost Europe. AB - Current archaeological evidence indicates the transition from hunting-fishing gathering to agriculture in Northern Europe was a gradual process. This transition was especially complex in the prehistoric North Fennoscandian landscape where the high latitude posed a challenge to both domestic animal breeding and cereal cultivation. The conditions varied, the coastal dwellers had access to rich marine resources and enjoyed a milder climate due to the Gulf Stream, while those living in the inland Boreal forest zone faced longer and colder winters and less diversity in animal and plant resources. Thus, the coastal area provided more favourable conditions for early agriculture compared to those found inland. Interestingly, a cultural differentiation between these areas is archaeologically visible from the late 2nd millennium BC onwards. This is most clearly seen in regionally distinct pottery styles, offering unique opportunities to probe diet and subsistence through the organic residues preserved in ceramic vessels. Herein, we integrate the lipid biomarker, compound specific stable carbon isotopes (delta13C), and zooarchaeological evidence to reveal culturally distinct human diets and subsistence patterns. In northern Norway, some of the coastal people adopted dairying as part of their subsistence strategy, while the inhabitants of the interior, in common with northern Finland, continued their hunter-gatherer-fisher lifestyles. PMID- 29348635 TI - Publisher Correction: Spermine synthase deficiency causes lysosomal dysfunction and oxidative stress in models of Snyder-Robinson syndrome. AB - The originally published version of this Article contained errors in Figure 1. In panel c, the grey shading denoting evolutionary conservation and the arrowheads indicating amino acids affected in Snyder-Robinson syndrome were displaced relative to the sequence. These errors have now been corrected in both the PDF and HTML versions of the manuscript. PMID- 29348634 TI - A biosensor-based framework to measure latent proteostasis capacity. AB - The pool of quality control proteins (QC) that maintains protein-folding homeostasis (proteostasis) is dynamic but can become depleted in human disease. A challenge has been in quantitatively defining the depth of the QC pool. With a new biosensor, flow cytometry-based methods and mathematical modeling we measure the QC capacity to act as holdases and suppress biosensor aggregation. The biosensor system comprises a series of barnase kernels with differing folding stability that engage primarily with HSP70 and HSP90 family proteins. Conditions of proteostasis stimulation and stress alter QC holdase activity and aggregation rates. The method reveals the HSP70 chaperone cycle to be rate limited by HSP70 holdase activity under normal conditions, but this is overcome by increasing levels of the BAG1 nucleotide exchange factor to HSPA1A or activation of the heat shock gene cluster by HSF1 overexpression. This scheme opens new paths for biosensors of disease and proteostasis systems. PMID- 29348636 TI - The gamma gap predicts 4-year all-cause mortality among nonagenarians and centenarians. AB - Recent studies have revealed the prognostic role of the gamma gap, the total serum proteins concentration minus the albumin concentration, for predicting all cause mortality among adults. This study aims to investigate the relationship between the gamma gap and all-cause mortality among nonagenarians and centenarians via a secondary data analysis of a prospective observational study. The analysis included 801 participants (260 men and 541 women, mean age: 93.7 +/- 3.5 years), 46 of which were lost at the 4-year follow-up. The mean gamma gap was 2.7 +/- 0.5 g/dl. After adjusting for relevant confounders, the gamma gap was significantly associated with 4-year all-cause mortality (hazard ratio [HR] per 1 SD = 1.22, 95% confidential interval [CI]: 1.12-1.78). Using different cut-off points, the elevated gamma gap could be defined as >=2.9, 3.0, 3.1, or 3.2 g/dl. The relevant HRs and 95% CIs of the elevated gamma gap for predicting mortality were 1.27 (1.12-1.90), 1.29 (1.03-1.78), 1.21 (1.23-1.66), and 1.26 (1.09-1.69), respectively. In conclusion, the gamma gap is an independent prognostic factor for long-term mortality in nonagenarians and centenarians. A value greater than or equal to 3.1 g/dl may define an elevated gamma gap, but further studies are required. PMID- 29348637 TI - Plasmodium dihydrofolate reductase is a second enzyme target for the antimalarial action of triclosan. AB - Malaria, caused by parasites of the genus Plasmodium, leads to over half a million deaths per year, 90% of which are caused by Plasmodium falciparum. P. vivax usually causes milder forms of malaria; however, P. vivax can remain dormant in the livers of infected patients for weeks or years before re-emerging in a new bout of the disease. The only drugs available that target all stages of the parasite can lead to severe side effects in patients with glucose-6-phosphate dehydrogenase (G6PD) deficiency; hence, there is an urgent need to develop new drugs active against blood and liver stages of the parasite. Different groups have demonstrated that triclosan, a common antibacterial agent, targets the Plasmodium liver enzyme enoyl reductase. Here, we provide 4 independent lines of evidence demonstrating that triclosan specifically targets both wild-type and pyrimethamine-resistant P. falciparum and P. vivax dihydrofolate reductases, classic targets for the blood stage of the parasite. This makes triclosan an exciting candidate for further development as a dual specificity antimalarial, which could target both liver and blood stages of the parasite. PMID- 29348639 TI - Evidence of local structural influence on the shape driven magnetic anisotropy in electronically excited Ni nanoparticles embedded in SiO2 matrix. AB - The reliance of modern electronic era on ultrafast data recording has made the search for novel tools to tune nano-scale magnetic-anisotropy (MA) never-ending. We demonstrate a strong correlation between the spin-spin interactions, local atomic structure and the MA of Ni nanoparticles (NPs) embedded inside SiO2 matrix under swift heavy ion (SHI) irradiation. In contrast to traditional understandings, MA in Ni NPs along with their aspect ratio, first increases upto 5 * 1013 ions/cm2 SHI fluence (5e13) and gets reduced at highest fluence. Using angle dependent Extented-Xray-Absorption-Fine-Structure (EXAFS) and ab initio molecular dynamics (MD) simulations, we show that the anisotropy induced in local atomic structure upon irradiation is dependent on atomic spin-spin interactions, which gets reduced at highest fluence. The chosen model cluster (Ni38) used in our MD simulations is duly validated by comparing the pair-correlation-function of the structure with the EXAFS-Fourier-Transform. The lattice temperatures for the films irradiated at different fluences, as calculated from thermal-spike model, are used for the respective MD runs. We conclude that the enhanced disorder in both the local atomic environment and spin alignment destroys the MA at the highest fluence in SHI irradiated Ni NPs. The findings therefore provide rich conceptual insights for designing magnetic devices using SHI-induced phenomena. PMID- 29348640 TI - Predators on top. PMID- 29348638 TI - Changes in cytokine responses to TB antigens ESAT-6, CFP-10 and TB 7.7 and inflammatory markers in peripheral blood during therapy. AB - Multiple cytokines and inflammatory markers control TB infection. We aimed to investigate the changes in multiple cytokines and inflammatory markers in active TB patients following anti-TB drug therapy. Twenty-nine patients with active TB were recruited prospectively between December 2010 and July 2017. Blood samples were collected before (T0), after 2 months (T2), and at the end of anti-TB treatment (Tend). We measured the levels of Interferon (IFN)-gamma, interleukin (IL)-2, IL-12, IL-10, IL-13 and tumor necrosis factor (TNF)-alpha in supernatants collected from the QuantiFERON-TB Gold In-Tube assay (QFT-GIT), as well as the WBC, neutrophil, platelet count and neutrophil to lymphocyte ratio (NLR) in whole blood. Compared with baseline levels, WBC, neutrophil, and platelet counts were significantly lower following treatment. In addition, the NLR after treatment significantly decreased compared with baseline, whereas the IL-2/IFN-gamma ratio increased after treatment. In conclusion, the levels of IL-2/IFN-gamma ratios in the supernatant and the NLR might be useful biomarkers to evaluate the effectiveness of drug therapy in active TB patients. PMID- 29348641 TI - Refined control of cell stemness allowed animal evolution in the oxic realm. AB - Animal diversification on Earth has long been presumed to be associated with the increasing extent of oxic niches. Here, we challenge that view. We start with the fact that hypoxia (<1-3% O2) maintains cellular immaturity (stemness), whereas adult stem cells continuously-and paradoxically-regenerate animal tissue in oxygenated settings. Novel insights from tumour biology illuminate how cell stemness nevertheless can be achieved through the action of oxygen-sensing transcription factors in oxygenated, regenerating tissue. We suggest that these hypoxia-inducible transcription factors provided animals with unprecedented control over cell stemness that allowed them to cope with fluctuating oxygen concentrations. Thus, a refinement of the cellular hypoxia-response machinery enabled cell stemness at oxic conditions and, then, animals to evolve into the oxic realm. This view on the onset of animal diversification is consistent with geological evidence and provides a new perspective on the challenges and evolution of multicellular life. PMID- 29348642 TI - The success of failed Homo sapiens dispersals out of Africa and into Asia. AB - The evidence for an early dispersal of Homo sapiens from Africa into the Levant during Marine Isotope Stage 5 (MIS-5) 126-74 ka (thousand years ago) was characterized for many years as an 'abortive' expansion: a precursor to a sustained dispersal from which all extant human populations can be traced. Recent archaeological and genetic data from both western and eastern parts of Eurasia and from Australia are starting to challenge that interpretation. This Perspective reviews the current evidence for a scenario where the MIS-5 dispersal encompassed a much greater geographic distribution and temporal duration. The implications of this for tracking and understanding early human dispersal in Southeast Asia specifically are considered, and the validity of measuring dispersal success only through genetic continuity into the present is examined. PMID- 29348643 TI - A trillion trees. PMID- 29348644 TI - Global priorities for conserving the evolutionary history of sharks, rays and chimaeras. AB - In an era of accelerated biodiversity loss and limited conservation resources, systematic prioritization of species and places is essential. In terrestrial vertebrates, evolutionary distinctness has been used to identify species and locations that embody the greatest share of evolutionary history. We estimate evolutionary distinctness for a large marine vertebrate radiation on a dated taxon-complete tree for all 1,192 chondrichthyan fishes (sharks, rays and chimaeras) by augmenting a new 610-species molecular phylogeny using taxonomic constraints. Chondrichthyans are by far the most evolutionarily distinct of all major radiations of jawed vertebrates-the average species embodies 26 million years of unique evolutionary history. With this metric, we identify 21 countries with the highest richness, endemism and evolutionary distinctness of threatened species as targets for conservation prioritization. On average, threatened chondrichthyans are more evolutionarily distinct-further motivating improved conservation, fisheries management and trade regulation to avoid significant pruning of the chondrichthyan tree of life. PMID- 29348646 TI - Intergenerational equity can help to prevent climate change and extinction. PMID- 29348645 TI - A global perspective on the trophic geography of sharks. AB - Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits in trophic interactions between sharks found in different habitats. We show that populations of shelf-dwelling sharks derive a substantial proportion of their carbon from regional pelagic sources, but contain individuals that forage within additional isotopically diverse local food webs, such as those supported by terrestrial plant sources, benthic production and macrophytes. In contrast, oceanic sharks seem to use carbon derived from between 30 degrees and 50 degrees of latitude. Global-scale compilations of stable isotope data combined with biogeochemical modelling generate hypotheses regarding animal behaviours that can be tested with other methodological approaches. PMID- 29348647 TI - The contribution of predators and scavengers to human well-being. AB - Predators and scavengers are frequently persecuted for their negative effects on property, livestock and human life. Research has shown that these species play important regulatory roles in intact ecosystems including regulating herbivore and mesopredator populations that in turn affect floral, soil and hydrological systems. Yet predators and scavengers receive surprisingly little recognition for their benefits to humans in the landscapes they share. We review these benefits, highlighting the most recent studies that have documented their positive effects across a range of environments. Indeed, the benefits of predators and scavengers can be far reaching, affecting human health and well-being through disease mitigation, agricultural production and waste-disposal services. As many predators and scavengers are in a state of rapid decline, we argue that researchers must work in concert with the media, managers and policymakers to highlight benefits of these species and the need to ensure their long-term conservation. Furthermore, instead of assessing the costs of predators and scavengers only in economic terms, it is critical to recognize their beneficial contributions to human health and well-being. Given the ever-expanding human footprint, it is essential that we construct conservation solutions that allow a wide variety of species to persist in shared landscapes. Identifying, evaluating and communicating the benefits provided by species that are often considered problem animals is an important step for establishing tolerance in these shared spaces. PMID- 29348649 TI - Publisher Correction: Determination of total and unbound docetaxel in plasma by ultrafiltration and UPLC-MS/MS: application to pharmacokinetic studies. AB - A correction to this article has been published and is linked from the HTML version of this paper. The error has been fixed in the paper. PMID- 29348648 TI - Specific cyclic ADP-ribose phosphohydrolase obtained by mutagenic engineering of Mn2+-dependent ADP-ribose/CDP-alcohol diphosphatase. AB - Cyclic ADP-ribose (cADPR) is a messenger for Ca2+ mobilization. Its turnover is believed to occur by glycohydrolysis to ADP-ribose. However, ADP-ribose/CDP alcohol diphosphatase (ADPRibase-Mn) acts as cADPR phosphohydrolase with much lower efficiency than on its major substrates. Recently, we showed that mutagenesis of human ADPRibase-Mn at Phe37, Leu196 and Cys253 alters its specificity: the best substrate of the mutant F37A + L196F + C253A is cADPR by a short difference, Cys253 mutation being essential for cADPR preference. Its proximity to the 'northern' ribose of cADPR in docking models indicates Cys253 is a steric constraint for cADPR positioning. Aiming to obtain a specific cADPR phosphohydrolase, new mutations were tested at Asp250, Val252, Cys253 and Thr279, all near the 'northern' ribose. First, the mutant F37A + L196F + C253G, with a smaller residue 253 (Ala > Gly), showed increased cADPR specificity. Then, the mutant F37A + L196F + V252A + C253G, with another residue made smaller (Val > Ala), displayed the desired specificity, with cADPR kcat/KM ~20-200-fold larger than for any other substrate. When tested in nucleotide mixtures, cADPR was exhausted while others remained unaltered. We suggest that the specific cADPR phosphohydrolase, by cell or organism transgenesis, or the designed mutations, by genome editing, provide opportunities to study the effect of cADPR depletion on the many systems where it intervenes. PMID- 29348650 TI - Glacial vicariance drives phylogeographic diversification in the amphi-boreal kelp Saccharina latissima. AB - Glacial vicariance is regarded as one of the most prevalent drivers of phylogeographic structure and speciation among high-latitude organisms, but direct links between ice advances and range fragmentation have been more difficult to establish in marine than in terrestrial systems. Here we investigate the evolution of largely disjunct (and potentially reproductively isolated) phylogeographic lineages within the amphi-boreal kelp Saccharina latissima s. l. Using molecular data (COI, microsatellites) we confirm that S. latissima comprises also the NE Pacific S. cichorioides complex and is composed of divergent lineages with limited range overlap and genetic admixture. Only a few genetic hybrids were detected throughout a Canadian Arctic/NW Greenland contact zone. The degree of genetic differentiation and sympatric isolation of phylogroups suggest that S. latissima s. l. represents a complex of incipient species. Phylogroup distributions compared with paleo-environmental reconstructions of the cryosphere further suggest that diversification within S. latissima results from chronic glacial isolation in disjunct persistence areas intercalated with ephemeral interglacial poleward expansions and admixture at high-latitude (Arctic) contact zones. This study thus supports a role for glaciations not just in redistributing pre-existing marine lineages but also as a speciation pump across multi-glacial cycles for marine organisms otherwise exhibiting cosmopolite amphi-boreal distributions. PMID- 29348652 TI - Intensification of ice nucleation observed in ocean ship emissions. AB - Shipping contributes primary and secondary emission products to the atmospheric aerosol burden that have implications for climate, clouds, and air quality from regional to global scales. In this study we exam the potential impact of ship emissions with regards to ice nucleating particles. Particles that nucleate ice are known to directly affect precipitation and cloud microphysical properties. We have collected and analyzed particles for their ice nucleating capacity from a shipping channel outside a large Scandinavia port. We observe that ship plumes amplify the background levels of ice nucleating particles and discuss the larger scale implications. The measured ice nucleating particles suggest that the observed amplification is most likely important in regions with low levels of background particles. The Arctic, which as the sea ice pack declines is opening to transit and natural resource exploration and exploitation at an ever increasing rate, is highlighted as such a region. PMID- 29348651 TI - Depressive mood ratings are reduced by MDMA in female polydrug ecstasy users homozygous for the l-allele of the serotonin transporter. AB - MDMA exerts its main effects via the serotonergic system and the serotonin transporter. The gene coding for this transporter determines the expression rate of the transporter. Previously it was shown that healthy individuals with the short allelic variant ('s-group') of the 5-HTTLPR-polymorphism displayed more anxiety and negative mood, and had a lower transcriptional efficiency compared to individuals who are homozygous for the l-allele ('l-group'). The present study aimed to investigate the role of the 5-HTTLPR polymorphism in MDMA-induced mood effects. Four placebo-controlled, within-subject studies were pooled, including in total 63 polydrug ecstasy users (Ns-group = 48; Nl-group = 15) receiving MDMA 75 mg and placebo on two test days, separated by minimally 7 days. Mood was assessed by means of the Profile of Mood States. Findings showed that MDMA induced -independent of sex- a positive mood state, and as a side effect also increased two negative affect states, anxiety and confusion. Anxiety ratings were higher in the l-group and independent of treatment or sex. Depression ratings were lowered by MDMA in the female l-group. Findings indicate that the MDMA induced reduction in self-rated depressive feelings is sex- and genotype dependent, with females homozygous for the l-allele showing this beneficial effect. PMID- 29348653 TI - Non-structural carbohydrates regulated by season and species in the subtropical monsoon broad-leaved evergreen forest of Yunnan Province, China. AB - Non-structural carbohydrates (NSC) play important roles in adapting to environments in plants. Despite extensive research on the seasonal dynamics and species differences of NSC, the relative contributions of season and species to NSC is not well understood. We measured the concentration of starch, soluble sugar, NSC, and the soluble sugar:starch ratio in leaves, twigs, trunks and roots of twenty dominant species for dry and wet season in monsoon broad-leaved evergreen forest, respectively. The majority of concentration of NSC and starch in the roots, and the leaves contained the highest concentration of soluble sugar. A seasonal variation in starch and NSC concentrations higher in the dry season. Conversely, the wet season samples had higher concentration of soluble sugar and the sugar:starch ratio. Significant differences exist for starch, soluble sugar and NSC concentrations and the sugar:starch ratio across species. Most species had higher starch and NSC concentrations in the dry season and higher soluble sugar concentration and the sugar:starch ratio in wet season. Repeated variance analysis showed that starch and NSC concentrations were strongly affected by season although the effect of seasons, species, and the interaction of the two on the starch, soluble sugar, and NSC concentrations were significant. PMID- 29348655 TI - The headache of temporomandibular disorders. AB - This article endeavours to revise the key guidance and evidence on temporomandibular disorders (TMD), with a particular focus on myofascial pain. It highlights the important role that primary care dental practitioners play in providing holistic care during the patient's journey to manage this painful condition. I hope to give an insight into my own personal experiences to highlight the challenges patients can face in seeking appropriate support. PMID- 29348654 TI - Low concentration trifluoperazine promotes proliferation and reduces calcium dependent apoptosis in glioma cells. AB - Glioma patients constitute the greatest percentage of depressed neoplasm patients. These patients often require antidepressant treatment, but the effect of antidepressant drugs on glioma cells requires further evaluation. In the present study, we evaluated the effect of trifluoperazine (TFP) on the proliferation and apoptosis of glioma cells. Transcriptomic and bioinformatics analysis results suggested that antidepressant drugs, especially TFP, may upregulate the drug-resistant ability of glioma cells. A low concentration of TFP upregulated the viability of glioma cells. Colony formation and EdU assays confirmed that TFP treatment accelerates glioma cell proliferation, but no significant difference was found in the cell cycle distribution of glioma cells after treatment with TFP or control. Flow cytometry and TUNEL staining results suggested that TFP treatment decreased apoptosis in glioma cells. In addition, TFP treatment downregulated the intracellular Ca2+ concentration of glioma cells. In vivo experimental results indicated that TFP treatment promoted proliferation and reduced apoptosis in xenograft tumours in nude mice. Taken together, our results suggest that a low concentration of TFP promotes proliferation and reduces apoptosis in glioma cells both in vitro and in vivo. The potential harmful effects of antidepressant drugs on gliomas require further evaluation before their use in glioma patients. PMID- 29348656 TI - Quantifying the Risk and Cost of Active Monitoring for Infectious Diseases. AB - During outbreaks of deadly emerging pathogens (e.g., Ebola, MERS-CoV) and bioterror threats (e.g., smallpox), actively monitoring potentially infected individuals aims to limit disease transmission and morbidity. Guidance issued by CDC on active monitoring was a cornerstone of its response to the West Africa Ebola outbreak. There are limited data on how to balance the costs and performance of this important public health activity. We present a framework that estimates the risks and costs of specific durations of active monitoring for pathogens of significant public health concern. We analyze data from New York City's Ebola active monitoring program over a 16-month period in 2014-2016. For monitored individuals, we identified unique durations of active monitoring that minimize expected costs for those at "low (but not zero) risk" and "some or high risk": 21 and 31 days, respectively. Extending our analysis to smallpox and MERS CoV, we found that the optimal length of active monitoring relative to the median incubation period was reduced compared to Ebola due to less variable incubation periods. Active monitoring can save lives but is expensive. Resources can be most effectively allocated by using exposure-risk categories to modify the duration or intensity of active monitoring. PMID- 29348657 TI - An ethylene response factor (MxERF4) functions as a repressor of Fe acquisition in Malus xiaojinensis. AB - Iron (Fe) is an essential element for plants; however, its availability is limited as it forms insoluble complexes in the soil. Consequently, plants have developed mechanisms to adapt to low Fe conditions. We demonstrate that ethylene is involved in Fe deficiency-induced physiological responses in Malus xiaojinensis, and describe the identification of MxERF4 as a protein-protein interaction partner with the MxFIT transcription factor, which is involved in the iron deficiency response. Furthermore, we demonstrate that MxERF4 acts as an MxFIT interaction partner to suppresses the expression of the Fe transporter MxIRT1, by binding directly to its promoter, requiring the EAR motif of the MxERF4 protein. Suppression of MxERF4 expression in M. xiaojinensis, using virus induced gene silencing resulted in an increase in MxIRT1 expression. Taken together, the results suggest a repression mechanism, where ethylene initiates the Fe deficiency response, and the response is then dampened, which may require a transient inhibition of Fe acquisition via the action of MxERF4. PMID- 29348658 TI - Novel multifunctional cheese-like 3D carbon-BN as a highly efficient adsorbent for water purification. AB - In this paper, a novel three dimensional carbon boron nitride (3D C-BN) was successfully prepared. The obtained material has porous cheese-like structure and pore size ranging from 2 nm to 100 nm. Attractively, the 3D C-BN, which combines the adsorption advantages of BN and carbon together, exhibits excellent adsorption properties for organic dyes, oils and heavy metal ions. The maximum removal capacities of 3D C-BN for methyl blue (MB) and congo red (CR) are 408 mg g-1 and 307 mg g-1, respectively. Furthermore, 3D C-BN can quickly and efficiently remove oils (salad oil, gasoline and pump oil) and heavy metal ions (Cr3+, Cd2+ and Ni2+) from waste water. The macro bulk 3D C-BN, which is more convenient to use than powdered materials, can be reused by burning or heating in air and still maintains high adsorption capacity. Significantly, these superior performances can find practical application in water purification. PMID- 29348659 TI - BLM helicase suppresses recombination at G-quadruplex motifs in transcribed genes. AB - Bloom syndrome is a cancer predisposition disorder caused by mutations in the BLM helicase gene. Cells from persons with Bloom syndrome exhibit striking genomic instability characterized by excessive sister chromatid exchange events (SCEs). We applied single-cell DNA template strand sequencing (Strand-seq) to map the genomic locations of SCEs. Our results show that in the absence of BLM, SCEs in human and murine cells do not occur randomly throughout the genome but are strikingly enriched at coding regions, specifically at sites of guanine quadruplex (G4) motifs in transcribed genes. We propose that BLM protects against genome instability by suppressing recombination at sites of G4 structures, particularly in transcribed regions of the genome. PMID- 29348660 TI - Generation and Characterization of Alloantigen-Specific Regulatory T Cells For Clinical Transplant Tolerance. AB - Donor-specific CD4+CD127-CD25+FOXP3+ regulatory T cells (AgTregs) have the potential to induce clinical transplant tolerance; however, their expansion ex vivo remains challenging. We optimized a novel expansion protocol to stimulate donor-specific Tregs using soluble 4-trimer CD40 ligand (CD40L)-activated donor B cells that expressed mature antigen-presenting cell markers. This avoided the use of CD40L-expressing stimulator cells that might otherwise result in potential cellular contamination. Purified allogeneic "recipient" CD4+CD25+ Tregs were stimulated on days 0 and 7 with expanded "donor" B cells in the presence of IL-2, TGFbeta and sirolimus (SRL). Tregs were further amplified by polyclonal stimulation with anti-CD3/CD28 beads on day 14 without SRL, and harvested on day 21, with extrapolated fold expansion into the thousands. The expanded AgTregs maintained expression of classical Treg markers including demethylation of the Treg-specific demethylated region (CNS2) and also displayed constricted TcR repertoire. We observed AgTregs more potently inhibited MLR than polyclonally expanded Tregs and generated new Tregs in autologous responder cells (a measure of infectious tolerance). Thus, an optimized and more clinically applicable protocol for the expansion of donor-specific Tregs has been developed. PMID- 29348661 TI - Highly efficient and stable inverted perovskite solar cell employing PEDOT:GO composite layer as a hole transport layer. AB - The beneficial use of a hole transport layer (HTL) as a substitution for poly(3,4 ethlyenedioxythiophene): polystyrene sulfonate (PEDOT:PSS) is regarded as one of the most important approaches for improving the stability and efficiency of inverted perovskite solar cells. Here, we demonstrate highly efficient and stable inverted perovskite solar cells by applying a GO-doped PEDOT:PSS (PEDOT:GO) film as an HTL. The high performance of this solar cell stems from the excellent optical and electrical properties of the PEDOT:GO film, including a higher electrical conductivity, a higher work function related to the reduced contact barrier between the perovskite layer and the PEDOT:GO layer, enhanced crystallinity of the perovskite crystal, and suppressed leakage current. Moreover, the device with the PEDOT:GO layer showed excellent long-term stability in ambient air conditions. Thus, the enhancement in the efficiency and the excellent stability of inverted perovskite solar cells are promising for the eventual commercialization of perovskite optoelectronic devices. PMID- 29348662 TI - Endoscopic submucosal tunnel dissection using a novel bracing basket: An animal feasibility study. AB - The aim of this study was to evaluate the feasibility of a novel bracing basket for Endoscopic submucosal tunnel dissection (ESTD), which was developed for improved effectiveness and ease of use. This was a prospective randomized, comparative, experimental animal study carried out at a single center. The primary aim was to evaluate the efficacy of ESTD with a novel bracing basket, compared with conventional ESTD. The secondary aims were to assess the quality control of the procedures and adverse events. Twenty procedures (6 esophageal and 14 gastric) were performed in four pigs. All resections were completed as en bloc resections. The technical success rate was 100% for both techniques (bracing basket-assisted ESTD vs. conventional ESTD). The procedure times were similar, but the cutting speed was quicker with bracing basket-assisted ESTD in gastric (antrum:23.3 +/- 2.2 mm2/min vs. 15.2 +/- 3.2 mm2/min, body: 26.1 +/- 1.3 mm2/min vs. 18.4 +/- 2.0 mm2/min, p < 0.05). There was one bleeding in the bracing basket assisted ESTD group and one perforation in the conventional ESTD group. Compared with conventional ESTD, the use of this basket has potential advantages. Comparison studies with larger gastric or colorectal lesions treated with conventional ESTD are needed. PMID- 29348663 TI - Enhancer-associated long non-coding RNA LEENE regulates endothelial nitric oxide synthase and endothelial function. AB - The optimal expression of endothelial nitric oxide synthase (eNOS), the hallmark of endothelial homeostasis, is vital to vascular function. Dynamically regulated by various stimuli, eNOS expression is modulated at transcriptional, post transcriptional, and post-translational levels. However, epigenetic modulations of eNOS, particularly through long non-coding RNAs (lncRNAs) and chromatin remodeling, remain to be explored. Here we identify an enhancer-associated lncRNA that enhances eNOS expression (LEENE). Combining RNA-sequencing and chromatin conformation capture methods, we demonstrate that LEENE is co-regulated with eNOS and that its enhancer resides in proximity to eNOS promoter in endothelial cells (ECs). Gain- and Loss-of-function of LEENE differentially regulate eNOS expression and EC function. Mechanistically, LEENE facilitates the recruitment of RNA Pol II to the eNOS promoter to enhance eNOS nascent RNA transcription. Our findings unravel a new layer in eNOS regulation and provide novel insights into cardiovascular regulation involving endothelial function. PMID- 29348664 TI - Stress-induced TRBP phosphorylation enhances its interaction with PKR to regulate cellular survival. AB - Transactivation response element RNA-binding protein (TRBP or TARBP2) initially identified to play an important role in human immunodeficiency virus (HIV) replication also has emerged as a regulator of microRNA biogenesis. In addition, TRBP functions in signaling pathways by negatively regulating the interferon induced double-stranded RNA (dsRNA)-activated protein kinase (PKR) during viral infections and cell stress. During cellular stress, PKR is activated and phosphorylates the alpha subunit of the eukaryotic translation factor eIF2, leading to the cessation of general protein synthesis. TRBP inhibits PKR activity by direct interaction as well as by binding to PKR's two known activators, dsRNA and PACT, thus preventing their interaction with PKR. In this study, we demonstrate for the first time that TRBP is phosphorylated in response to oxidative stress and upon phosphorylation, inhibits PKR more efficiently promoting cell survival. These results establish that PKR regulation through stress-induced TRBP phosphorylation is an important mechanism ensuring cellular recovery and preventing apoptosis due to sustained PKR activation. PMID- 29348665 TI - PCDHGA9 acts as a tumor suppressor to induce tumor cell apoptosis and autophagy and inhibit the EMT process in human gastric cancer. AB - The results of a cDNA array revealed that protocadherin gamma subfamily A, 9 (PCDHGA9) was significantly decreased in SGC-7901 gastric cancer (GC) cells compared with GES-1 normal gastric cells and was strongly associated with the Wnt/beta-catenin and transforming growth factor-beta (TGF-beta)/Smad2/3 signaling pathway. As a member of the cadherin family, PCDHGA9 functions in both cell-cell adhesion and nuclear signaling. However, its role in tumorigenicity or metastasis has not been reported. In the present study, we found that PCDHGA9 was decreased in GC tissues compared with corresponding normal mucosae and its expression was correlated with the GC TNM stage, the UICC stage, differentiation, relapse, and metastasis (p < 0.01). Multivariate Cox analysis revealed that PCDHGA9 was an independent prognostic indicator for overall survival (OS) and disease-free survival (DFS) (p < 0.01). The effects of PCDHGA9 on GC tumor growth and metastasis were examined both in vivo and in vitro. PCDHGA9 knockdown promoted GC cell proliferation, migration, and invasion, whereas PCDHGA9 overexpression inhibited GC tumor growth and metastasis but induced apoptosis, autophagy, and G1 cell cycle arrest. Furthermore, PCDHGA9 suppressed epithelial-mesenchymal transition (EMT) induced by TGF-beta, decreased the phosphorylation of Smad2/3, and inhibited the nuclear translocation of pSmad2/3. Our results suggest that PCDHGA9 might interact with beta-catenin to prevent beta-catenin from dissociating in the cytoplasm and translocating to the nucleus. Moreover, PCDHGA9 overexpression restrained cell proliferation and reduced the nuclear beta catenin, an indicator of Wnt/beta-catenin pathway activation, suggesting that PCDHGA9 negatively regulates Wnt signaling. Together, these data indicate that PCDHGA9 acts as a tumor suppressor with anti-proliferative activity and anti invasive ability, and the reduction of PCDHGA9 could serve as an independent prognostic biomarker in GC. PMID- 29348667 TI - Neuroimmunology: Brain police. PMID- 29348668 TI - Neurodegenerative disease: A proteostatic boost. PMID- 29348669 TI - Learning and memory: You only learn once. PMID- 29348666 TI - Mitochondria at the neuronal presynapse in health and disease. AB - Synapses enable neurons to communicate with each other and are therefore a prerequisite for normal brain function. Presynaptically, this communication requires energy and generates large fluctuations in calcium concentrations. Mitochondria are optimized for supplying energy and buffering calcium, and they are actively recruited to presynapses. However, not all presynapses contain mitochondria; thus, how might synapses with and without mitochondria differ? Mitochondria are also increasingly recognized to serve additional functions at the presynapse. Here, we discuss the importance of presynaptic mitochondria in maintaining neuronal homeostasis and how dysfunctional presynaptic mitochondria might contribute to the development of disease. PMID- 29348671 TI - Superconducting gap anisotropy sensitive to nematic domains in FeSe. AB - The structure of the superconducting gap in unconventional superconductors holds a key to understand the momentum-dependent pairing interactions. In superconducting FeSe, there have been controversial results reporting nodal and nodeless gap structures, raising a fundamental issue of pairing mechanisms of iron-based superconductivity. Here, by utilizing polarization-dependent laser excited angle-resolved photoemission spectroscopy, we report a detailed momentum dependence of the gap in single- and multi-domain regions of orthorhombic FeSe crystals. We confirm that the superconducting gap has a twofold in-plane anisotropy, associated with the nematicity due to orbital ordering. In twinned regions, we clearly find finite gap minima near the vertices of the major axis of the elliptical zone-centered Fermi surface, indicating a nodeless state. In contrast, the single-domain gap drops steeply to zero in a narrow angle range, evidencing for nascent nodes. Such unusual node lifting in multi-domain regions can be explained by the nematicity-induced time-reversal symmetry breaking near the twin boundaries. PMID- 29348670 TI - Intradermal delivery of STAT3 siRNA to treat melanoma via dissolving microneedles. AB - Hyperactivity of signal transducer and activity of transcription 3 (STAT3) plays a crucial role in melanoma invasion and metastasis. Gene therapy applying siRNA targeting STAT3 is a potential therapeutic strategy for melanoma. In this article, we first fabricated safe and novel dissolving microneedles (MNs) for topical application of STAT3 siRNA to enhance the skin penetration of siRNA and used polyethylenimine (PEI, 25 kDa) as carrier to improve cellular uptake of siRNA. The results showed that MNs can effectively penetrate skin and rapidly dissolve in the skin. In vitro B16F10 cell experiments presented that STAT3 siRNA PEI complex can enhance cellular uptake and transfection of siRNA, correspondingly enhance gene silencing efficiency and inhibit tumor cells growth. In vivo experiments indicated that topical application of STAT3 siRNA PEI complex delivered by dissolving MNs into skin can effectively suppress the development of melanoma through silencing STAT3 gene, and the inhibition effect is dose dependent. STAT3 siRNA delivery via dissolving MNs is a promising approach for skin melanoma treatment with targeting inhibition efficacy and minimal adverse effects. PMID- 29348672 TI - Soluble LRP1 is an independent biomarker of epicardial fat volume in patients with type 1 diabetes mellitus. AB - Epicardial adipose tissue (EAT) is a metabolically active tissue intimately associated with metabolic syndrome and cardiovascular disease. Quantification of EAT volume is an interesting clinical tool for the evaluation of cardiometabolic disease. Nevertheless, current methodology presents serious disadvantages. The soluble form of the receptor LRP1 (sLRP1) is a non-invasive biomarker of EAT in general population. Here, we analysed the potential of circulating sLRP1 as biomarker of EAT volume in patients with type 1 diabetes mellitus (T1DM). The study included a well-characterized cohort of T1DM patients without clinical cardiovascular disease (N = 73). EAT volume was assessed by a multidetector computed tomography (MDCT). sLRP1 and panel of inflammatory and endocrine mediators were measured using commercially available ELISA. EAT volume showed a direct association with circulating sLRP1 (beta = 0.398, P = 0.001) in univariate linear regression analysis. This association was higher than that observed for other potential inflammatory and endocrine biomarkers. Using multivariate linear regression analyses, we demonstrated that the association between EAT volume and circulating sLRP1 was independent of potential confounding factors, including age, sex, body mass index, CRP, HbA1c and LDL-C (P < 0.050 for all multivariate linear regression models). In conclusion, sLRP1 is an independent biomarker of EAT in T1DM patients. PMID- 29348673 TI - Quantification of massively parallel sequencing libraries - a comparative study of eight methods. AB - Quantification of massively parallel sequencing libraries is important for acquisition of monoclonal beads or clusters prior to clonal amplification and to avoid large variations in library coverage when multiple samples are included in one sequencing analysis. No gold standard for quantification of libraries exists. We assessed eight methods of quantification of libraries by quantifying 54 amplicon, six capture, and six shotgun fragment libraries. Chemically synthesized double-stranded DNA was also quantified. Light spectrophotometry, i.e. NanoDrop, was found to give the highest concentration estimates followed by Qubit and electrophoresis-based instruments (Bioanalyzer, TapeStation, GX Touch, and Fragment Analyzer), while SYBR Green and TaqMan based qPCR assays gave the lowest estimates. qPCR gave more accurate predictions of sequencing coverage than Qubit and TapeStation did. Costs, time-consumption, workflow simplicity, and ability to quantify multiple samples are discussed. Technical specifications, advantages, and disadvantages of the various methods are pointed out. PMID- 29348674 TI - Variation at position 350 in the Chikungunya virus 6K-E1 protein determines the sensitivity of detection in a rapid E1-antigen test. AB - Chikungunya virus (CHIKV), a mosquito-borne pathogen, consists of three genotypes: East/Central/South African (ECSA), West African (WA), and Asian. Although a current rapid immunochromatographic (IC) test detecting CHIKV E1 antigen showed high sensitivity to ECSA-genotype viruses, it showed poor performance against the Asian-genotype virus that is spreading in the American continents. To understand the basis for the low performance of this IC test against Asian-genotype virus, we re-examined the anti-CHIKV monoclonal antibodies (mAbs) used in the assay for their interaction with E1-antigen of the three CHIKV genotypes. We found that the reactivity of one mAb for Asian-genotype virus was lower than that for ECSA virus. Comparison of E1 amino acid sequences revealed that the ECSA virus used to generate these mAbs possesses glutamic acid (E) at position 350, in contrast to WA and Asian, which possess aspartic acid (D) at this position. Site-directed mutagenesis confirmed that the mutation altered mAb reactivity, since E-to-D substitution at position 350 in ECSA reduced recognition by the mAb, while D-to-E substitution at this position in Asian and WA increased affinity for the mAb. Taken together, these results indicate that residue 350 of the CHIKV 6K-E1 is a key element affecting the performance of this IC assay. PMID- 29348675 TI - STAC2 negatively regulates osteoclast formation by targeting the RANK signaling complex. AB - The receptor activator of nuclear factor-kappaB (RANK) protein activates various protein kinase signaling cascades, including those involving NF-kappaB, mitogen activated protein kinase (MAPK), and Bruton tyrosine kinase (Btk)/tyrosine protein kinase Tec. However, the mechanism underlying the negative regulation of RANK by downstream signaling molecules remains unclear. Here, we report that Src homology 3 domain and cysteine-rich domain-containing protein 2 (STAC2) is a novel RANK ligand-inducible protein that negatively regulates RANK-mediated osteoclast formation. STAC2 physically interacts with RANK and inhibits the formation of the RANK signaling complex, which contains Grb-2-associated binder 2 (Gab2) and phospholipase Cgamma2 (PLCgamma2), thus leading to the suppression of RANK-mediated NF-kappaB and MAPK activation. Furthermore, STAC2 overexpression limits Btk/Tec-mediated PLCgamma2 phosphorylation via the interaction between STAC2 and Btk/Tec. Taken together, our results reveal a novel mechanism whereby RANK signaling is restricted by its physical interaction with STAC2. PMID- 29348676 TI - miR-137 regulates ferroptosis by targeting glutamine transporter SLC1A5 in melanoma. AB - Ferroptosis is a regulated form of cell death driven by small molecules or conditions that induce lipid-based reactive oxygen species (ROS) accumulation. This form of iron-dependent cell death is morphologically and genetically distinct from apoptosis, necroptosis, and autophagy. miRNAs are known to play crucial roles in diverse fundamental biological processes. However, to date no study has reported miRNA-mediated regulation of ferroptosis. Here we show that miR-137 negatively regulates ferroptosis by directly targeting glutamine transporter SLC1A5 in melanoma cells. Ectopic expression of miR-137 suppressed SLC1A5, resulting in decreased glutamine uptake and malondialdehyde (MDA) accumulation. Meanwhile, antagomir-mediated inactivation of endogenous miR-137 increased the sensitivity of melanoma cells to erastin- and RSL3-induced ferroptosis. Importantly, knockdown of miR-137 increased the antitumor activity of erastin by enhancing ferroptosis both in vitro and in vivo. Collectively, these data indicate that miR-137 plays a novel and indispensable role in ferroptosis by inhibiting glutaminolysis and suggest a potential therapeutic approach for melanoma. PMID- 29348678 TI - 2017 FDA drug approvals. PMID- 29348677 TI - The Proliferation Capacity of Cultured Neural Stem Cells Promoted by CSF Collected from SAH Patients Correlates to Clinical Outcome. AB - Neurogenesis from endogenous neural stem cells (NSCs) might contribute to functional recovery after stroke based on animal studies; however, the relationship between neurogenesis and post-stroke outcome has rarely been demonstrated in humans. We prospectively collected cerebrospinal fluid (CSF) from 36 patients with subarachnoid hemorrhage (SAH). The CSF was added to the culture medium of the rat NSCs to test the effects on proliferation (proliferation index [PI], percentage of Ki-67 immunoreactive cells). We correlated the PI with functional outcome based on the modified Rankin Scale at 3 months post-SAH. Treatment with the CSF samples collected from SAH patients showed a higher PI compared with those collected from patients with normal pressure hydrocephalus and untreated controls (20.3 +/- 8.8 vs. 8.2 +/- 5.1 and 7.8 +/- 3.0, P < 0.001), indicating proliferation-promoting factors in CSF after SAH. The PI was positively correlated with SAH volume (p = 0.025). For patients with lower SAH volume, patients with favorable outcome had a higher PI than those with poor outcome (20.8 +/- 6.9 vs. 14.6 +/- 4.3, p = 0.047). Using multivariable logistic regression analysis, the PI was a positive determinant for favorable outcome (odds ratio, 1.17; 95% confidence interval, 1.00 to 1.36) that more proliferation promoting factors in CSF was associated with better functional outcome in SAH patients. PMID- 29348679 TI - Market watch: 2017 FDA drug approvals: number rebounds but average value slips. PMID- 29348680 TI - Morgan Sheng. PMID- 29348682 TI - Glimmers in illuminating the druggable genome. PMID- 29348681 TI - Impact of a five-dimensional framework on R&D productivity at AstraZeneca. AB - In 2011, AstraZeneca embarked on a major revision of its research and development (R&D) strategy with the aim of improving R&D productivity, which was below industry averages in 2005-2010. A cornerstone of the revised strategy was to focus decision-making on five technical determinants (the right target, right tissue, right safety, right patient and right commercial potential). In this article, we describe the progress made using this '5R framework' in the hope that our experience could be useful to other companies tackling R&D productivity issues. We focus on the evolution of our approach to target validation, hit and lead optimization, pharmacokinetic/pharmacodynamic modelling and drug safety testing, which have helped improve the quality of candidate drug nomination, as well as the development of the right culture, where 'truth seeking' is encouraged by more rigorous and quantitative decision-making. We also discuss where the approach has failed and the lessons learned. Overall, the continued evolution and application of the 5R framework are beginning to have an impact, with success rates from candidate drug nomination to phase III completion improving from 4% in 2005-2010 to 19% in 2012-2016. PMID- 29348683 TI - The effect of foreign language in fear acquisition. AB - Emotions are at the core of human nature. There is evidence that emotional reactivity in foreign languages compared to native languages is reduced. We explore whether this emotional distance could modulate fear conditioning, an essential mechanism for the understanding and treatment of anxiety disorders. A group of participants was verbally informed (either in a foreign or in a native language) that two different stimuli could be either cueing the potential presence of a threat stimulus or its absence. We registered pupil size and electrodermal activity and calculated the difference in psychophysiological responses to conditioned and to unconditioned stimuli. Our findings provided evidence that verbal conditioning processes are affected by language context in this paradigm. We report the first experimental evidence regarding how the use of a foreign language may reduce fear conditioning. This observation opens the avenue to the potential use of a foreign language in clinical contexts. PMID- 29348684 TI - Mithramycin A suppresses basal triple-negative breast cancer cell survival partially via down-regulating Kruppel-like factor 5 transcription by Sp1. AB - As the most malignant breast cancer subtype, triple-negative breast cancer (TNBC) does not have effective targeted therapies clinically to date. As a selective Sp1 inhibitor, Mithramycin A (MIT) has been reported to have anti-tumor activities in multiple cancers. However, the efficacy and the mechanism of MIT in breast cancer, especially TNBC, have not been studied. In this study, we demonstrated that MIT suppressed breast cancer cell survival in a dosage-dependent manner. Interestingly, TNBC cells were more sensitive to MIT than non-TNBC cells. MIT inhibited TNBC cell proliferation and promoted apoptosis in vitro in time- and dosage-dependent manners. MIT suppressed TNBC cell survival, at least partially, by transcriptionally down-regulating KLF5, an oncogenic transcription factor specifically expressed in basal TNBC. Finally, MIT suppressed TNBC cell growth in a xenograft mouse model. Taken together, our findings suggested that MIT inhibits basal TNBC via the Sp1/KLF5 axis and that MIT may be used for TNBC treatment. PMID- 29348685 TI - Overexpression of adhesion molecules and barrier molecules is associated with differential infiltration of immune cells in non-small cell lung cancer. AB - Immunotherapy is emerging as a promising option for lung cancer treatment. Various endothelial adhesion molecules, such as integrin and selectin, as well as various cellular barrier molecules such as desmosome and tight junctions, regulate T-cell infiltration in the tumor microenvironment. However, little is known regarding how these molecules affect immune cells in patients with lung cancer. We demonstrated for the first time that overexpression of endothelial adhesion molecules and cellular barrier molecule genes was linked to differential infiltration of particular immune cells in non-small cell lung cancer. Overexpression of endothelial adhesion molecule genes is associated with significantly lower infiltration of activated CD4 and CD8 T-cells, but higher infiltration of activated B-cells and regulatory T-cells. In contrast, overexpression of desmosome genes was correlated with significantly higher infiltration of activated CD4 and CD8 T-cells, but lower infiltration of activated B-cells and regulatory T-cells in lung adenocarcinoma. This inverse relation of immune cells aligns with previous studies of tumor-infiltrating B cells inhibiting T-cell activation. Although overexpression of endothelial adhesion molecule or cellular barrier molecule genes alone was not predictive of overall survival in our sample, these genetic signatures may serve as biomarkers of immune exclusion, or resistance to T-cell mediated immunotherapy. PMID- 29348687 TI - Far field superfocusing along with enhanced near field emission from hybrid spiral plasmonic lens inscribed with nano corrals slit diffractor. AB - Here, we have numerically calculated electric field intensity and phase of the emission from various hybrid spiral plasmonic lenses (HSPL) in near field as well as in far-field. We have proposed a novel HSPL inscribed with nano corrals slit (NCS) and compared its focusing ability with other HSPLs inscribed with circular slit and circular grating. With the use of nano corrals slit, we have been able to improve light intensity in the far-field without compromising near-field intensity. Our NCS-HSPL outperforms other HSPLs and standalone SPL in near-field as well as far-field. We have also found that proposed circular slit diffractor is far more superior than previously reported circular grating diffractor. We have been able to extend the focal length of hybrid plasmonic lens upto 3 um and observed a two-fold increment in the far field intensity compared to existing spiral plasmonic lens even though size of focal spot remains same. Optical complex fields produced by NCS based HSPL can be used for various applications such as super resolution microscopy, nanolithography, bioimaging and sensing, angular momentum detectors, etc. Moreover, enhanced near-field intensity in conjunction with far-field superfocusing with reasonable focal length may lead to the development of novel multifunctional lab-on-chip devices. PMID- 29348686 TI - Defects in the mitochondrial-tRNA modification enzymes MTO1 and GTPBP3 promote different metabolic reprogramming through a HIF-PPARgamma-UCP2-AMPK axis. AB - Human proteins MTO1 and GTPBP3 are thought to jointly catalyze the modification of the wobble uridine in mitochondrial tRNAs. Defects in each protein cause infantile hypertrophic cardiomyopathy with lactic acidosis. However, the underlying mechanisms are mostly unknown. Using fibroblasts from an MTO1 patient and MTO1 silenced cells, we found that the MTO1 deficiency is associated with a metabolic reprogramming mediated by inactivation of AMPK, down regulation of the uncoupling protein 2 (UCP2) and transcription factor PPARgamma, and activation of the hypoxia inducible factor 1 (HIF-1). As a result, glycolysis and oxidative phosphorylation are uncoupled, while fatty acid metabolism is altered, leading to accumulation of lipid droplets in MTO1 fibroblasts. Unexpectedly, this response is different from that triggered by the GTPBP3 defect, as GTPBP3-depleted cells exhibit AMPK activation, increased levels of UCP2 and PPARgamma, and inactivation of HIF-1. In addition, fatty acid oxidation and respiration are stimulated in these cells. Therefore, the HIF-PPARgamma-UCP2-AMPK axis is operating differently in MTO1- and GTPBP3-defective cells, which strongly suggests that one of these proteins has an additional role, besides mitochondrial-tRNA modification. This work provides new and useful information on the molecular basis of the MTO1 and GTPBP3 defects and on putative targets for therapeutic intervention. PMID- 29348688 TI - Response to correspondence from the ESSA Statement authors. PMID- 29348689 TI - Response to "The neurogenic bowel dysfunction score in patients with spinal cord injury: methodological issues in reliability and validity". PMID- 29348690 TI - The neurogenic bowel dysfunction score in patients with spinal cord injury: methodological issues in reliability and validity. PMID- 29348691 TI - Correspondence re "Evidence-based scientific exercise guidelines for adults with spinal cord injury: an update and new guideline". PMID- 29348692 TI - Genome-wide search for higher order epistasis as modifiers of treatment effects on bone mineral density in childhood cancer survivors. AB - Single-nucleotide polymorphisms (SNPs) contributing to interactions between regulatory elements that modulate gene transcription may explain some of the uncharacterized variation for complex traits. We explored this hypothesis among 856 adult survivors of pediatric cancer exposed to curative treatments that adversely affect bone mineral density (BMD). To restrict our search to interactions among SNPs in regulatory elements, our analysis considered 75523 SNPs mapped to putative promoter or enhancer regions. In anticipation that power to detect higher order epistasis would be low using an exhaustive search and a Bonferroni-corrected threshold for genome-wide significance (e.g., P < 5.6 * 10 14), a novel non-exhaustive statistical algorithm was implemented to detect chromosome-wide three-way regulatory interactions. We used a permutation-based evaluation statistic to identify candidate SNP interactions with stronger associations with BMD than expected. Of the six regulatory 3-SNP interactions identified as candidate interactions (P < 3.5 * 10-11) among cancer survivors exposed to treatments, five were replicated in an independent cohort of survivors (N = 1428) as modifiers of treatment effects on BMD (P < 0.05). Analyses with publicly available bioinformatics data revealed that SNPs contributing to replicated interactions were enriched for gene expressions (P = 3.6 * 10-4) and enhancer states (P < 0.05) in cells relevant for bone biology. For each replicated interaction, implicated SNPs were within or directly adjacent to 100 kb windows of genomic regions that plausibly physically interact in lymphoblastoid cells. Our study demonstrates the utility of a hypothesis-driven approach in revealing epistasis associated with complex traits. PMID- 29348694 TI - Effect of deliberation on the public's attitudes toward consent policies for biobank research. AB - In this study, we evaluate the effect of education and deliberation on the willingness of members of the public to donate tissue to biobank research and on their attitudes regarding various biobank consent policies. Participants were randomly assigned to a democratic deliberation (DD) group, an education group that received only written materials, and a control group. Participants completed a survey before the deliberation and two surveys post-deliberation: one on (or just after) the deliberation day, and one 4 weeks later. Subjects were asked to rate 5 biobank consent policies as acceptable (or not) and to identify the best and worst policies. Analyses compared acceptability of different policy options and changes in attitudes across the three groups. After deliberation, subjects in the DD group were less likely to find broad consent (defined here as consent for the use of donations in an unspecified range of future research studies, subject to content and process restrictions) and study-by-study consent acceptable. The DD group was also significantly less likely to endorse broad consent as the best policy (OR = 0.34), and more likely to prefer alternative consent options. These results raise ethical challenges to the current widespread reliance on broad consent in biobank research, but do not support study-by-study consent. PMID- 29348693 TI - Variants in members of the cadherin-catenin complex, CDH1 and CTNND1, cause blepharocheilodontic syndrome. AB - Blepharocheilodontic syndrome (BCDS) consists of lagophthalmia, ectropion of the lower eyelids, distichiasis, euryblepharon, cleft lip/palate and dental anomalies and has autosomal dominant inheritance with variable expression. We identified heterozygous variants in two genes of the cadherin-catenin complex, CDH1, encoding E-cadherin, and CTNND1, encoding p120 catenin delta1 in 15 of 17 BCDS index patients, as was recently described in a different publication. CDH1 plays an essential role in epithelial cell adherence; CTNND1 binds to CDH1 and controls the stability of the complex. Functional experiments in zebrafish and human cells showed that the CDH1 variants impair the cell adhesion function of the cadherin catenin complex in a dominant-negative manner. Variants in CDH1 have been linked to familial hereditary diffuse gastric cancer and invasive lobular breast cancer; however, no cases of gastric or breast cancer have been reported in our BCDS cases. Functional experiments reported here indicated the BCDS variants comprise a distinct class of CDH1 variants. Altogether, we identified the genetic cause of BCDS enabling DNA diagnostics and counseling, in addition we describe a novel class of dominant negative CDH1 variants. PMID- 29348695 TI - Synchronization of Clocks Through 12 km of Strongly Turbulent Air Over a City. AB - We demonstrate real-time, femtosecond-level clock synchronization across a low lying, strongly turbulent, 12-km horizontal air path by optical two-way time transfer. For this long horizontal free-space path, the integrated turbulence extends well into the strong turbulence regime corresponding to multiple scattering with a Rytov variance up to 7 and with the number of signal interruptions exceeding 100 per second. Nevertheless, optical two-way time transfer is used to synchronize a remote clock to a master clock with femtosecond level agreement and with a relative time deviation dropping as low as a few hundred attoseconds. Synchronization is shown for a remote clock based on either an optical or microwave oscillator and using either tip-tilt or adaptive-optics free-space optical terminals. The performance is unaltered from optical two-way time transfer in weak turbulence across short links. These results confirm that the two-way reciprocity of the free-space time-of-flight is maintained both under strong turbulence and with the use of adaptive optics. The demonstrated robustness of optical two-way time transfer against strong turbulence and its compatibility with adaptive optics is encouraging for future femtosecond clock synchronization over very long distance ground-to-air free-space paths. PMID- 29348696 TI - Three-Dimensional Simulations of Tearing and Intermittency in Coronal Jets. AB - Observations of coronal jets increasingly suggest that local fragmentation and intermittency play an important role in the dynamics of these events. In this work we investigate this fragmentation in high-resolution simulations of jets in the closed-field corona. We study two realizations of the embedded-bipole model, whereby impulsive helical outflows are driven by reconnection between twisted and untwisted field across the domed fan plane of a magnetic null. We find that the reconnection region fragments following the onset of a tearing-like instability, producing multiple magnetic null points and flux-rope structures within the current layer. The flux ropes formed within the weak-field region in the center of the current layer are associated with "blobs" of density enhancement that become filamentary threads as the flux ropes are ejected from the layer, whereupon new flux ropes form behind them. This repeated formation and ejection of flux ropes provides a natural explanation for the intermittent outflows, bright blobs of emission, and filamentary structure observed in some jets. Additional observational signatures of this process are discussed. Essentially all jet models invoke reconnection between regions of locally closed and locally open field as the jet-generation mechanism. Therefore, we suggest that this repeated tearing process should occur at the separatrix surface between the two flux systems in all jets. A schematic picture of tearing-mediated jet reconnection in three dimensions is outlined. PMID- 29348697 TI - Optimum Wing Shape Determination of Highly Flexible Morphing Aircraft for Improved Flight Performance. AB - In this paper, optimum wing bending and torsion deformations are explored for a mission adaptive, highly flexible morphing aircraft. The complete highly flexible aircraft is modeled using a strain-based geometrically nonlinear beam formulation, coupled with unsteady aerodynamics and 6-dof rigid-body motions. Since there are no conventional discrete control surfaces for trimming the flexible aircraft, the design space for searching the optimum wing geometries is enlarged. To achieve high performance flight, the wing geometry is best tailored according to the specific flight mission needs. In this study, the steady level flight and the coordinated turn flight are considered, and the optimum wing deformations with the minimum drag at these flight conditions are searched by utilizing a modal-based optimization procedure, subject to the trim and other constraints. The numerical study verifies the feasibility of the modal-based optimization approach, and shows the resulting optimum wing configuration and its sensitivity under different flight profiles. PMID- 29348698 TI - Effects of FAME biodiesel and HVORD on emissions from an older-technology diesel engine. AB - The results of laboratory evaluations were used to compare the potential of two alternative, biomass-derived fuels as a control strategy to reduce the exposure of underground miners to aerosols and gases emitted by diesel-powered equipment. The effects of fatty acid methyl ester (FAME) biodiesel and hydrotreated vegetable oil renewable diesel (HVORD) on criteria aerosol and gaseous emissions from an older-technology, naturally aspirated, mechanically controlled engine equipped with a diesel oxidation catalytic converter were compared with those of widely used petroleum-derived, ultralow-sulfur diesels (ULSDs). The emissions were characterized for four selected steady-state conditions. When fueled with FAME biodiesel and HVORD, the engine emitted less aerosols by total particulate mass, total carbon mass, elemental carbon mass and total number than when it was fueled with ULSDs. Compared with ULSDs, FAME biodiesel and HVORD produced aerosols that were characterized by single modal distributions, smaller count median diameters, and lower total and peak concentrations. For the majority of test cases, FAME biodiesel and HVORD favorably affected nitric oxide (NO) and adversely affected nitrogen dioxide (NO2) generation. Therefore, the use of these alternative fuels appears to be a viable tool for the underground mining industry to address the issues related to emissions from diesel engines, and to transition toward more universal solutions provided by advanced engines with integrated exhaust after treatment technologies. PMID- 29348699 TI - Industrial Internet of Things: (IIoT) applications in underground coal mines. AB - The Industrial Internet of Things (IIoT), a concept that combines sensor networks and control systems, has been employed in several industries to improve productivity and safety. U.S. National Institute for Occupational Safety and Health (NIOSH) researchers are investigating IIoT applications to identify the challenges of and potential solutions for transferring IIoT from other industries to the mining industry. Specifically, NIOSH has reviewed existing sensors and communications network systems used in U.S. underground coal mines to determine whether they are capable of supporting IIoT systems. The results show that about 40 percent of the installed post-accident communication systems as of 2014 require minimal or no modification to support IIoT applications. NIOSH researchers also developed an IIoT monitoring and control prototype system using low-cost microcontroller Wi-Fi boards to detect a door opening on a refuge alternative, activate fans located inside the Pittsburgh Experimental Mine and actuate an alarm beacon on the surface. The results of this feasibility study can be used to explore IIoT applications in underground coal mines based on existing communication and tracking infrastructure. PMID- 29348700 TI - Open-air sprays for capturing and controlling airborne float coal dust on longwall faces. AB - Float dust deposits in coal mine return airways pose a risk in the event of a methane ignition. Controlling airborne dust prior to deposition in the return would make current rock dusting practices more effective and reduce the risk of coal-dust-fueled explosions. The goal of this U.S. National Institute for Occupational Safety and Health study is to determine the potential of open-air water sprays to reduce concentrations of airborne float coal dust, smaller than 75 um in diameter, in longwall face airstreams. This study evaluated unconfined water sprays in a featureless tunnel ventilated at a typical longwall face velocity of 3.6 m/s (700 fpm). Experiments were conducted for two nozzle orientations and two water pressures for hollow cone, full cone, flat fan, air atomizing and hydraulic atomizing spray nozzles. Gravimetric samples show that airborne float dust removal efficiencies averaged 19.6 percent for all sprays under all conditions. The results indicate that the preferred spray nozzle should be operated at high fluid pressures to produce smaller droplets and move more air. These findings agree with past respirable dust control research, providing guidance on spray selection and spray array design in ongoing efforts to control airborne float dust over the entire longwall ventilated opening. PMID- 29348701 TI - Statistical Significance and the Dichotomization of Evidence: The Relevance of the ASA Statement on Statistical Significance and p-values for Statisticians. PMID- 29348702 TI - Subjective Cognitive Impairment, Depressive Symptoms, and Fatigue after a TIA or Transient Neurological Attack: A Prospective Study. AB - Introduction: Subjective cognitive impairment (SCI), depressive symptoms, and fatigue are common after stroke and are associated with reduced quality of life. We prospectively investigated their prevalence and course after a transient ischemic attack (TIA) or nonfocal transient neurological attack (TNA) and the association with diffusion-weighted imaging (DWI) lesions. Methods: The Cognitive Failures Questionnaire, Hospital Anxiety and Depression Scale, and Subjective Fatigue subscale from the Checklist Individual Strength were used to assess subjective complaints shortly after TIA or TNA and six months later. With repeated measure analysis, the associations between DWI lesion presence or clinical diagnosis (TIA or TNA) and subjective complaints over time were determined. Results: We included 103 patients (28 DWI positive). At baseline, SCI and fatigue were less severe in DWI positive than in DWI negative patients, whereas at follow-up, there were no differences. SCI (p = 0.02) and fatigue (p = 0.01) increased in severity only in DWI positive patients. There were no differences between TIA and TNA. Conclusions: Subjective complaints are highly prevalent in TIA and TNA patients. The short-term prognosis is not different between DWI-positive and DWI negative patients, but SCI and fatigue increase in severity within six months after the event when an initial DWI lesion is present. PMID- 29348703 TI - Platelet-Released Growth Factors Modulate the Secretion of Cytokines in Synoviocytes under Inflammatory Joint Disease. AB - The etiology and pathogenesis of rheumatoid arthritis (RA) are marked by a complex interplay of various cell populations and is mediated by different signaling pathways. Traditionally, therapies have primarily focused on pain relief, reducing inflammation and the recovery of joint function. More recently, however, researchers have discussed the therapeutic efficacy of autologous platelet-rich plasma (PRP). The main objective of this work is to examine the influences of platelet-released growth factor (PRGF) on human synoviocytes under inflammatory conditions. Additionally, it is checked to which extend treatment with platelet concentrate influences the release of cytokines form synoviocytes. For this purpose, an in vitro RA model was created by stimulating the cells with the TNF-alpha. The release of cytokines was measured by ELISA. The cytokine gene expression was analyzed by real-time PCR. It has been observed that the stimulation concentration of 10 ng/ml TNF-alpha resulted in a significantly increased endogenous secretion and gene expression of IL-6 and TNF-alpha. The anti-inflammatory effect of PRGF could be confirmed through significant reduction of TNF-alpha and IL-1beta. An induced inflammatory condition seems to cause PRGF to inhibit the release of proinflammatory cytokines. Further study is required to understand the exact effect mechanism of PRGF on synoviocytes. PMID- 29348705 TI - Proximal extrapolated gradient methods for variational inequalities. AB - The paper concerns with novel first-order methods for monotone variational inequalities. They use a very simple linesearch procedure that takes into account a local information of the operator. Also, the methods do not require Lipschitz continuity of the operator and the linesearch procedure uses only values of the operator. Moreover, when the operator is affine our linesearch becomes very simple, namely, it needs only simple vector-vector operations. For all our methods, we establish the ergodic convergence rate. In addition, we modify one of the proposed methods for the case of a composite minimization. Preliminary results from numerical experiments are quite promising. PMID- 29348704 TI - Stimulation of Alpha7 Nicotinic Acetylcholine Receptor Attenuates Nicotine Induced Upregulation of MMP, MCP-1, and RANTES through Modulating ERK1/2/AP-1 Signaling Pathway in RAW264.7 and MOVAS Cells. AB - Vagus nerve stimulation through alpha7 nicotine acetylcholine receptors (alpha7 nAChR) signaling had been demonstrated attenuation of inflammation. This study aimed to determine whether PNU-282987, a selective alpha7-nAChR agonist, affected activities of matrix metalloproteinase (MMP) and inflammatory cytokines in nicotine-treatment RAW264.7 and MOVAS cells and to assess the underlying molecular mechanisms. RAW264.7 and MOVAS cells were treated with nicotine at different concentrations (0, 1, 10, and 100 ng/ml) for 0-120 min. Nicotine markedly stimulated the phosphorylation of extracellular signal-regulated kinase1/2 (ERK1/2) and c-Jun in RAW264.7 cells. Pretreatment with U0126 significantly suppressed phosphorylation of ERK1/2 and further attenuated nicotine-induced activation of c-Jun and upregulation of MMP-2, MMP-9, monocyte chemotactic protein- (MCP-) 1, and regulated upon activation normal T cell expressed and secreted (RANTES). Similarly, nicotine treatment also increased phosphorylation of c-Jun and expressions of MMP-2, MMP-9, MCP-1, and RANTES in MOVAS cells. When cells were pretreated with PNU-282987, nicotine-induced activations of ERK1/2 and c-Jun in RAW264.7 cells and c-Jun in MOVAS cells were effectively inhibited. Furthermore, nicotine-induced secretions of MMP-2, MMP-9, MCP-1, and RANTES were remarkably downregulated. Treatment with alpha7-nAChR agonist inhibits nicotine-induced upregulation of MMP and inflammatory cytokines through modulating ERK1/2/AP-1 signaling in RAW264.7 cells and AP-1 in MOVAS cells, providing a new therapeutic for abdominal aortic aneurysm. PMID- 29348706 TI - Diagnosis and Treatment of Clostridium difficile Infection (CDI). AB - Early and accurate diagnosis is essential for optimal treatment of individuals with Clostridium difficile infection (CDI) and for implementation of effective infection control procedures. The decision about which diagnostic test to use is an important one that should be based on test sensitivity, specificity, and predictive value. The challenges of CDI go beyond rapid identification and management of symptomatic patients. Asymptomatic carriage has long been suspected in C. difficile transmission, but it may play a larger role than previously thought. Emerging information also shows that patients treated for CDI remain colonized for many weeks after symptom resolution. In fact, stool culture positivity increases during the first weeks following treatment completion. Treatments that reduce the duration and degree of asymptomatic shedding could have added benefit for reduced transmission. PMID- 29348707 TI - Evolution of Knowledge, Awareness, and Practices regarding Zika Virus from 2016 to 2017. AB - Objective: Our team created a knowledge, attitudes, and practice (KAP) survey in order to assess changes over time in healthcare provider and community member awareness of Zika virus symptoms, transmission, treatment, and current and future concerns. Study Design: The cross-sectional survey was issued at an academic medical center in Washington, DC, and via an online link to healthcare providers and community members between June and August 2016. Survey distribution was then repeated the following year, from March to April 2017. Outcomes were compared by survey year and healthcare provider versus community member status using SAS Program Version 9.4. Results: Significant differences in knowledge, attitudes, and practices existed between 2016 and 2017 survey time points. By 2017, more respondents had knowledge of various Zika virus infection characteristics; however healthcare provider knowledge also waned in certain areas. Attitudes towards Zika virus infection displayed an overall decreased concern by 2017. Practice trends by 2017 demonstrated fewer travel restrictions to Zika-endemic areas and increased mosquito protective measures within the US. Conclusions: Our results provide novel insight into the transformation of knowledge, attitudes, and practice of community members and healthcare providers regarding Zika virus since its declaration as a public health emergency of international concern in 2016. PMID- 29348708 TI - HybPhyloMaker: Target Enrichment Data Analysis From Raw Reads to Species Trees. AB - Summary: Hybridization-based target enrichment in combination with genome skimming (Hyb-Seq) is becoming a standard method of phylogenomics. We developed HybPhyloMaker, a bioinformatics pipeline that performs target enrichment data analysis from raw reads to supermatrix-, supertree-, and multispecies coalescent based species tree reconstruction. HybPhyloMaker is written in BASH and integrates common bioinformatics tools. It can be launched both locally and on a high-performance computer cluster. Compared with existing target enrichment data analysis pipelines, HybPhyloMaker offers the following main advantages: implementation of all steps of data analysis from raw reads to species tree reconstruction, calculation and summary of alignment and gene tree properties that assist the user in the selection of "quality-filtered" genes, implementation of several species tree reconstruction methods, and analysis of the coding regions of organellar genomes. Availability: The HybPhyloMaker scripts, manual as well as a test data set, are available in https://github.com/tomas fer/HybPhyloMaker/. HybPhyloMaker is licensed under open-source license GPL v.3 allowing further modifications. PMID- 29348709 TI - Perioperative Medicine: A Burgeoning Field with Profound Importance to a Modern Clinician. AB - AIMS AND SCOPE This article serves in introducing the readers to the developing field of perioperative medicine. We have made an effort to come up with the latest management guidelines covering multiple subspecialties in form of a special supplement. This compendium in perioperative medicine serves as a comprehensive guide to a practicing clinician, in managing patients with various medical comorbidities undergoing surgical procedures and avoiding common pitfalls. PMID- 29348711 TI - Efficacy of Empirical Therapy With Combined Ciprofloxacin Versus Topical Drops Alone in Patients With Tubotympanic Chronic Suppurative Otitis Media: A Randomized Double-Blind Controlled Trial. AB - Background: One of the prevailing otologic infections in our country is chronic suppurative otitis media, especially the tubotympanic type for which various treatment protocols are followed. Usually, oral and topical antibiotics (mainly quinolones) are given alone or in combination. There is a lack of consensus as to whether topical drops alone are effective or a combined oral and systemic therapy should be prescribed. In our study, we have attempted to observe the efficacy of empirical therapy with combined ciprofloxacin versus topical drops only in patients with tubotympanic chronic suppurative otitis media for control of infection. Methodology: A total of 100 patients visiting the outpatient ENT department at our tertiary care hospital with clinically diagnosed chronic suppurative otitis media (tubotympanic type) were enrolled in our study. The study was reviewed and accepted by the ethical review committee. A detailed proforma was filled for all patients. All patients after aural toilet were subjected randomly to one of the 2 treatment methods, ie, topical ciprofloxacin ear drops plus an oral placebo or combined oral and topical ciprofloxacin. These patients were reviewed after 1 week of treatment. Results: It was observed that 48 of 50 (96%) patients responded to treatment in the group receiving topical ciprofloxacin, whereas 49 of 50 (98%) patients responded in the group receiving combined therapy. This difference was not significant. Moreover, age, sex, and duration of discharge did not have any effect on treatment. There were minimal side effects in both groups, which were also not significant and disappeared after discontinuation of treatment. Conclusions: The results of this study show that topical ciprofloxacin drops were as effective as combined oral and topical ciprofloxacin and that the addition of oral drug did not have any beneficial effect and added only to the cost of treatment. PMID- 29348710 TI - The Protein Tyrosine Phosphatase Nonreceptor 22 (PTPN22) R620W Functional Polymorphism in Psoriasis. AB - Background: Psoriasis is a complex autoimmune disease caused by the interaction of genetic and environmental factors. PTPN22 gene polymorphism has been reported to affect psoriasis susceptibility; however, no data are available for Middle Eastern populations. Objective: The aim of this study was to investigate the association of PTPN22 (1858C/T) R620W polymorphism with psoriasis in a Saudi cohort. Methods: Saudi subjects (n = 306) including patients with psoriasis (n = 106) and matched controls (n = 200) were studied for PTPN22 variants using tetra primer amplification refractory mutation system-polymerase chain reaction method. The frequencies of alleles and genotypes of PTPN22 (1858C/T) polymorphism were compared between patients and controls. Results: The frequency of CT genotype of PTPN22 (1858C/T) polymorphism was significantly higher, whereas that of CC genotype was lower in patients with psoriasis than in controls (P < .001, relative risk [RR] = 7.151). The homozygous genotype TT was absent in both the patients and healthy controls. The frequency of allele T encoding tryptophan (W) was significantly increased (P < .001, RR = 5.76), whereas that of allele C encoding arginine (R) decreased in psoriasis cases as compared with controls (P < .001, RR = 0.173) indicating that individuals carrying allele T are more susceptible to psoriasis than noncarriers. Conclusions: PTPN22 (1858C/T) polymorphism is positively associated with susceptibility of psoriasis in Saudis and can be developed as biomarker for evaluating psoriasis risk. However, further studies on PTPN22 polymorphism in larger samples from different geographical areas and ethnicity are warranted. PMID- 29348712 TI - Assessment of Ramadan Education and Knowledge Among Diabetic Patients. AB - Background: During Ramadan, Muslims fast from dawn until dusk for one lunar month every year. Most of the Muslim patients with diabetes are unaware of the potential complications that can occur while fasting, such as hypoglycemia. The aim of this study is to assess the the patient education level and patients' overall awareness of any possible complications that could occur while fasting during Ramadan and to determine how these patients deal with these complications. Methods: We conducted a cross-sectional study and surveyed diabetic patients about their diabetes-related knowledge over a period of 4 months from the outpatient clinic at the Obesity, Endocrine, and Metabolism Center at King Fahad Medical City. Patients were included if they were >=16 years and if they had been receiving treatment for at least 1 year before the study, irrespective of the medications used; patients were also asked about the presence or absence of complications. Results: This study included 477 patients (325 women and 152 men). Most patients (297; 62.3%) had type 2 diabetes. The patients' mean age was 39.72 +/- 15.29 years, and the mean duration of diabetes was 10.80 +/- 5.88 years. During the preceding Ramadan, 76% of patients reported fasting, whereas 58% said that they monitored their blood glucose levels once per day. Hypoglycemic episodes were reported in 60.3% of cases with type 2 diabetes and in 8.3% of cases with type 1 diabetes. Among those who had hypoglycemia, 2.8% of patients with type 1 diabetes and 17.8% with type 2 diabetes broke their fast. Finally, 54% of patients reported that their health care providers offered them instructions on diabetes management during Ramadan. Conclusions: Ramadan health education in diabetes can encourage, improve, and guide patients to change their lifestyles during Ramadan while minimizing the risk of acute complications. PMID- 29348713 TI - Disentangling the Sleep-Pain Relationship in Pediatric Chronic Pain: The Mediating Role of Internalizing Mental Health Symptoms. AB - Background: Pediatric chronic pain often emerges in adolescence and cooccurs with internalizing mental health issues and sleep impairments. Emerging evidence suggests that sleep problems may precede the onset of chronic pain as well as anxiety and depression. Studies conducted in pediatric populations with pain related chronic illnesses suggest that internalizing mental health symptoms may mediate the sleep-pain relationship; however, this has not been examined in youth with primary pain disorders. Objective: To examine whether anxiety and depressive symptoms mediated relationships between sleep quality and pain outcomes among youth with chronic pain. Methods: Participants included 147 youth (66.7% female) aged 8-18 years who were referred to a tertiary-level chronic pain program. At intake, the youth completed psychometrically sound measures of sleep quality, pain intensity, pain interference, and anxiety and depressive symptoms. Results: As hypothesized, poor sleep quality was associated with increased pain intensity and pain interference, and anxiety and depressive symptoms mediated these sleep pain relationships. Discussion: For youth with chronic pain, poor sleep quality may worsen pain through alterations in mood and anxiety; however, prospective research using objective measures is needed. Future research should examine whether targeting sleep and internalizing mental health symptoms in treatments improve pain outcomes in these youth. PMID- 29348714 TI - Orofacial Pains. PMID- 29348715 TI - Ginseng and obesity. AB - Although ginseng has been shown to have an antiobesity effect, antiobesity related mechanisms are complex and have not been completely elucidated. In the present study, we evaluated ginseng's effects on food intake, the digestion, and absorption systems, as well as liver, adipose tissue, and skeletal muscle in order to identify the mechanisms involved. A review of previous in vitro and in vivo studies revealed that ginseng and ginsenosides can increase energy expenditure by stimulating the adenosine monophosphate-activated kinase pathway and can reduce energy intake. Moreover, in high fat diet-induced obese and diabetic individuals, ginseng has shown a two-way adjustment effect on adipogenesis. Nevertheless, most of the previous studies into antiobesity effects of ginseng have been animal based, and there is a paucity of evidence supporting the suggestion that ginseng can exert an antiobesity effect in humans. PMID- 29348716 TI - Cylindrocarpon destructans/Ilyonectria radicicola-species complex: Causative agent of ginseng root-rot disease and rusty symptoms. AB - Cylindrocarpon destructans/Ilyonectria radicicola is thought to cause both rusty symptom and root-rot disease of American and Korean ginseng. Root-rot disease poses a more serious threat to ginseng roots than rusty symptoms, which we argue result from the plant defense response to pathogen attack. Therefore, strains causing rotten root are characterized as more aggressive than strains causing rusty symptoms. In this review, we state 1- the molecular evidence indicating that the root-rot causing strains are genetically distinct considering them as a separate species of Ilyonectria, namely I. mors-panacis and 2- the physiological and biochemical differences between the weakly and highly aggressive species as well as those between rusty and rotten ginseng plants. Eventually, we postulated that rusty symptom occurs on ginseng roots due to incompatible interactions with the weakly aggressive species of Ilyonectria, by the established iron-phenolic compound complexes while root-rot is developed by I. mors-panacis infection due to the production of high quantities of hydrolytic and oxidative fungal enzymes which destroy the plant defensive barriers, in parallel with the pathogen growth stimulation by utilizing the available iron. Furthermore, we highlight future areas for study that will help elucidate the complete mechanism of root-rot disease development. PMID- 29348717 TI - High-performance liquid chromatography analysis of phytosterols in Panax ginseng root grown under different conditions. AB - Background: The Panax ginseng plant is used as an herbal medicine. Phytosterols of P. ginseng have inhibitory effects on inflammation-related factors in HepG2 cells. Methods: Phytosterols (e.g., stigmasterol and beta-sitosterol) in the roots of P. ginseng grown under various conditions were analyzed using high performance liquid chromatography. The P. ginseng roots analyzed in this study were collected from three cultivation areas in Korea (i.e., Geumsan, Yeongju, and Jinan) and differed by cultivation year (i.e., 4 years, 5 years, and 6 years) and production process (i.e., straight ginseng, red ginseng, and white ginseng). Results: The concentrations of stigmasterol and beta-sitosterol in P. ginseng roots were 2.22-23.04 mg/g and 7.35-59.09 mg/g, respectively. The highest concentrations of stigmasterol and beta-sitosterol were in the roots of 6-year old P. ginseng cultivated in Jinan (82.14 mg/g and 53.23 mg/g, respectively). Conclusion: Six-year-old white ginseng and white ginseng cultivated in Jinan containing stigmasterol and beta-sitosterol are potentially a new source of income in agriculture. PMID- 29348718 TI - Qualitative and quantitative analysis of furosine in fresh and processed ginsengs. AB - Background: Furosine (E-N-2-furoylmethyl-L-lysine, FML) is an amino acid derivative, which is considered to be an important indicator of the extent of damage (deteriorating the quality of amino acid and proteins due to a blockage of lysine and a decrease in the digestibility of proteins) during the early stages of the Maillard reaction. In addition, FML has been proven to be harmful because it is closely related to a variety of diseases such as diabetes. The qualitative analysis of FML in fresh and processed ginsengs was confirmed using HPLC-MS. Methods: An ion-pair reversed-phase LC method was used for the quantitative analysis of FML in various ginseng samples. Results: The contents of FML in the ginseng samples were 3.35-42.28 g/kg protein. The lowest value was observed in the freshly collected ginseng samples, and the highest value was found in the black ginseng concentrate. Heat treatment and honey addition significantly increased the FML content from 3.35 g/kg protein to 42.28 g/kg protein. Conclusion: These results indicate that FML is a promising indicator to estimate the heat treatment degree and honey addition level during the manufacture of ginseng products. The FML content is also an important parameter to identity the quality of ginseng products. In addition, the generation and regulation of potentially harmful Maillard reaction products-FML in ginseng processing was also investigated, providing a solid theoretical foundation and valuable reference for safe ginseng processing. PMID- 29348719 TI - Effects of processing method on the pharmacokinetics and tissue distribution of orally administered ginseng. AB - Background: The use of different methods for the processing of ginseng can result in alterations in its medicinal properties and efficacy. White ginseng (WG), frozen ginseng (FG), and red ginseng (RG) are produced using different methods. WG, FG, and RG possess different pharmacological properties. Methods: WG, FG, and RG extracts and pure ginsenosides were administered to rats to study the pharmacokinetics and tissue distribution characteristics of the following ginsenosides-Rg1, Re, Rb1, and Rd. The concentrations of the ginsenosides in the plasma and tissues were determined using UPLC-MS/MS. Results: The rate and extent of absorption of Rg1, Re, Rb1, and Rd appeared to be affected by the different methods used in processing the ginseng samples. The areas under the plasma drug concentration-time curves (AUCs) of Rg1, Re, Rb1, and Rd were significantly higher than those of the pure ginsenosides. In addition, the AUCs of Rg1, Re, Rb1, and Rd were different for WG, FG, and RG. The amounts of Rg1, Re, Rd, and Rb1 were significantly (p < 0.05) higher in the tissues than those of the pure ginsenosides. The amounts of Re, Rb1, and Rd from the RG extract were significantly higher than those from the WG and FG extracts in the heart, lungs, and kidneys of the rats. Conclusion: Our results show that the use of different methods to process ginseng might affect the pharmacokinetics and oral bioavailability of ginseng as well as the tissue concentrations of Rg1, Re, Rd, and Rb1. PMID- 29348720 TI - Gintonin absorption in intestinal model systems. AB - Background: Recently, we identified a novel ginseng-derived lysophosphatidic acid receptor ligand, called gintonin. We showed that gintonin induces [Ca2+]i transient-mediated morphological changes, proliferation, and migration in cells expressing lysophosphatidic acid receptors and that oral administration of gintonin exhibits anti-Alzheimer disease effects in model mice. However, little is known about the intestinal absorption of gintonin. The aim of this study was to investigate gintonin absorption using two model systems. Methods: Gintonin membrane permeation was examined using a parallel artificial membrane permeation assay, and gintonin absorption was evaluated in a mouse everted intestinal sac model. Results: The parallel artificial membrane permeation assay showed that gintonin could permeate an artificial membrane in a dose-dependent manner. In the everted sac model, gintonin absorption increased with incubation time (from 0 min to 60 min), followed by a decrease in absorption. Gintonin absorption into everted sacs was also dose dependent, with a nonlinear correlation between gintonin absorption and concentration at 0.1-3 mg/mL and saturation at 3-5 mg/mL. Gintonin absorption was inhibited by the Rho kinase inhibitor Y-27632 and the sodium-glucose transporter inhibitor phloridzin. Moreover, lipid extraction with methanol also attenuated gintonin absorption, suggesting the importance of the lipid portion of gintonin in absorption. This result shows that gintonin might be absorbed through passive diffusion, paracellular, and active transport pathways. Conclusion: The present study shows that gintonin could be absorbed in the intestine through transcellular and paracellular diffusion, and active transport. In addition, the lipid component of gintonin might play a key role in its intestinal absorption. PMID- 29348721 TI - Rare ginsenoside Ia synthesized from F1 by cloning and overexpression of the UDP glycosyltransferase gene from Bacillus subtilis: synthesis, characterization, and in vitro melanogenesis inhibition activity in BL6B16 cells. AB - Background: Ginsenoside F1 has been described to possess skin-whitening effects on humans. We aimed to synthesize a new ginsenoside derivative from F1 and investigate its cytotoxicity and melanogenesis inhibitory activity in B16BL6 cells using recombinant glycosyltransferase enzyme. Glycosylation has the advantage of synthesizing rare chemical compounds from common compounds with great ease. Methods: UDP-glycosyltransferase (BSGT1) gene from Bacillus subtilis was selected for cloning. The recombinant glycosyltransferase enzyme was purified, characterized, and utilized to enzymatically transform F1 into its derivative. The new product was characterized by NMR techniques and evaluated by MTT, melanin count, and tyrosinase inhibition assay. Results: The new derivative was identified as (20S)-3beta,6alpha,12beta,20-tetrahydroxydammar-24-ene-20-O beta-D-glucopyranosyl-3-O-beta-D-glucopyranoside (ginsenoside Ia), which possesses an additional glucose linked into the C-3 position of substrate F1. Ia had been previously reported; however, no in vitro biological activity was further examined. This study focused on the mass production of arduous ginsenoside Ia from accessible F1 and its inhibitory effect of melanogenesis in B16BL6 cells. Ia showed greater inhibition of melanin and tyrosinase at 100 MUmol/L than F1 and arbutin. These results suggested that Ia decreased cellular melanin synthesis in B16BL6 cells through downregulation of tyrosinase activity. Conclusion: To our knowledge, this is the first study to report on the mass production of rare ginsenoside Ia from F1 using recombinant UDP glycosyltransferase isolated from B. subtillis and its superior melanogenesis inhibitory activity in B16BL6 cells as compared to its precursor. In brief, ginsenoside Ia can be applied for further study in cosmetics. PMID- 29348722 TI - Regulatory effects of saponins from Panax japonicus on colonic epithelial tight junctions in aging rats. AB - Background: Saponins from Panax japonicus (SPJ) are the most abundant and main active components of P. japonicus, which replaces ginseng roots in treatment for many kinds of diseases in the minority ethnic group in China. Our previous studies have demonstrated that SPJ has the effects of anti-inflammation through the mitogen-activated protein kinase (MAPK) and nuclear factor kappa B (NF kappaB) signaling pathways. The present study was designed to investigate whether SPJ can modulate intestinal tight junction barrier in aging rats and further to explore the potential mechanism. Methods: Aging rats had been treated with different doses (10 mg/kg, 30 mg/kg, and 60 mg/kg) of SPJ for 6 mo since they were 18 mo old. After the rats were euthanized, the colonic samples were harvested. Levels of tight junctions (claudin-1 and occludin) were determined by immunohistochemical staining. Levels of proinflammatory cytokines (interleukin 1beta and tumor necrosis factor-alpha) were examined by Western blot. NF-kappaB and phosphorylation of MAPK signaling pathways were also determined by Western blot. Results: We found that SPJ increased the expression of the tight junction proteins claudin-1 and occludin in the colon of aging rats. Treatment with SPJ decreased the levels of interleukin-1beta and tumor necrosis factor-alpha, reduced the phosphorylation of three MAPK isoforms, and inhibited the expression of NF-kappaB in the colon of aging rats. Conclusion: The studies demonstrated that SPJ modulates the damage of intestinal epithelial tight junction in aging rats, inhibits inflammation, and downregulates the phosphorylation of the MAPK and NF-kappaB signaling pathways. PMID- 29348723 TI - Metabolite profiling of fermented ginseng extracts by gas chromatography mass spectrometry. AB - Background: Ginseng contains many small metabolites such as amino acids, fatty acids, carbohydrates, and ginsenosides. However, little is known about the relationships between microorganisms and metabolites during the entire ginseng fermentation process. We investigated metabolic changes during ginseng fermentation according to the inoculation of food-compatible microorganisms. Methods: Gas chromatography mass spectrometry (GC-MS) datasets coupled with the multivariate statistical method for the purpose of latent-information extraction and sample classification were used for the evaluation of ginseng fermentation. Four different starter cultures (Saccharomyces bayanus, Bacillus subtilis, Lactobacillus plantarum, and Leuconostoc mesenteroide) were used for the ginseng extract fermentation. Results: The principal component analysis score plot and heat map showed a clear separation between ginseng extracts fermented with S. bayanus and other strains. The highest levels of fructose, maltose, and galactose in the ginseng extracts were found in ginseng extracts fermented with B. subtilis. The levels of succinic acid and malic acid in the ginseng extract fermented with S. bayanus as well as the levels of lactic acid, malonic acid, and hydroxypruvic acid in the ginseng extract fermented with lactic acid bacteria (L. plantarum and L. mesenteroide) were the highest. In the results of taste features analysis using an electronic tongue, the ginseng extracts fermented with lactic acid bacteria were significantly distinguished from other groups by a high index of sour taste probably due to high lactic acid contents. Conclusion: These results suggest that a metabolomics approach based on GC-MS can be a useful tool to understand ginseng fermentation and evaluate the fermentative characteristics of starter cultures. PMID- 29348724 TI - Ginsenoside Rg3 promotes inflammation resolution through M2 macrophage polarization. AB - Background: Ginsenosides have been reported to have many health benefits, including anti-inflammatory effects, and the resolution of inflammation is now considered to be an active process driven by M2-type macrophages. In order to determine whether ginsenosides modulate macrophage phenotypes to reduce inflammation, 11 ginsenosides were studied with respect to macrophage polarization and the resolution of inflammation. Methods: Mouse peritoneal macrophages were polarized into M1 or M2 phenotypes. Reverse transcription polymerase chain reaction, Western blotting, and measurement of nitric oxide (NO) and prostaglandin E2 levels were performed in vitro and in a zymosan-induced peritonitis C57BL/6 mouse model. Results: Ginsenoside Rg3 was identified as a proresolving ginseng compound based on the induction of M2 macrophage polarization. Ginsenoside Rg3 not only induced the expression of arginase-1 (a representative M2 marker gene), but also suppressed M1 marker genes, such as inducible NO synthase, and NO levels. The proresolving activity of ginsenoside Rg3 was also observed in vivo in a zymosan-induced peritonitis model. Ginsenoside Rg3 accelerated the resolution process when administered at peak inflammatory response into the peritoneal cavity. Conclusion: These results suggest that ginsenoside Rg3 induces the M2 polarization of macrophages and accelerates the resolution of inflammation. This finding opens a new avenue in ginseng pharmacology. PMID- 29348725 TI - Protective effect of ginsenoside Rb1 against tacrolimus-induced apoptosis in renal proximal tubular LLC-PK1 cells. AB - Background: The aim of the present study was to evaluate the potential protective effects of six ginsenosides (Rb1, Rb2, Rc, Rd, Rg1, and Rg3) isolated from Panax ginseng against tacrolimus (FK506)-induced apoptosis in renal proximal tubular LLC-PK1 cells. Methods: LLC-PK1 cells were treated with FK506 and ginsenosides, and cell viability was measured. Protein expressions of mitogen-activated protein kinases, caspase-3, and kidney injury molecule-1 (KIM-1) were evaluated by Western blotting analyses. The number of apoptotic cells was measured using an image-based cytometric assay. Results: Reduction in cell viability by 60MUM FK506 was ameliorated significantly by cotreatment with ginsenosides Rg1 and Rb1. The phosphorylation of p38, extracellular signal-regulated kinases, and KIM-1, and cleavage of caspase-3, increased markedly in LLC-PK1 cells treated with FK506 and significantly decreased after cotreatment with ginsenoside Rb1. The number of apoptotic cells decreased by 6.0% after cotreatment with ginsenoside Rb1 (10MUM and 50MUM). Conclusion: The antiapoptotic effects of ginsenoside Rb1 on FK506 induced apoptosis were mediated by the inhibition of mitogen-activated protein kinases and caspase activation. PMID- 29348726 TI - Photoaging protective effects of BIOGF1K, a compound-K-rich fraction prepared from Panax ginseng. AB - Background: BIOGF1K, a compound-K-rich fraction, has been shown to display anti inflammatory activity. Although Panax ginseng is widely used for the prevention of photoaging events induced by UVB irradiation, the effect of BIOGF1K on photoaging has not yet been examined. In this study, we investigated the effects of BIOGF1K on UVB-induced photoaging events. Methods: We analyzed the ability of BIOGF1K to prevent UVB-induced apoptosis, enhance matrix metalloproteinase (MMP) expression, upregulate anti-inflammatory activity, reduce sirtuin 1 expression, and melanin production using reverse transcription-polymerase chain reaction, melanin content assay, tyrosinase assay, and flow cytometry. We also evaluated the effects of BIOGF1K on the activator protein-1 signaling pathway, which plays an important role in photoaging, by immunoblot analysis and luciferase reporter gene assays. Results: Treatment of UVB-irradiated NIH3T3 fibroblasts with BIOGF1K prevented UVB-induced cell death, inhibited apoptosis, suppressed morphological changes, reduced melanin secretion, restored the levels of type I procollagen and sirtuin 1, and prevented mRNA upregulation of MMP-1, MMP-2, and cyclo-oxygenase 2; these effects all occurred in a dose-dependent manner. In addition, BIOGF1K markedly reduced activator-protein-1-mediated luciferase activity and decreased the activity of mitogen-activated protein kinases (extracellular response kinase, p38, and C-Jun N-terminal kinase). Conclusion: Our results strongly suggest that BIOGF1K has anti-photoaging activity and that BIOGF1K could be used in anti-aging cosmeceutical preparations. PMID- 29348727 TI - Efficacy and safety of Panax ginseng berry extract on glycemic control: A 12-wk randomized, double-blind, and placebo-controlled clinical trial. AB - Background: Antihyperglycemic effects of Panax ginseng berry have never been explored in humans. The aims of this study were to assess the efficacy and safety of a 12-wk treatment with ginseng berry extract in participants with a fasting glucose level between 100 mg/dL and 140 mg/dL. Methods: This study was a 12-wk, randomized, double-blind, placebo-controlled clinical trial. A total of 72 participants were randomly allocated to two groups of either ginseng berry extract or placebo, and 63 participants completed the study. The parameters related to glucose metabolism were assessed. Results: Although the present study failed to show significant antihyperglycemic effects of ginseng berry extract on the parameters related to blood glucose and lipid metabolism in the total study population, it demonstrated that ginseng berry extract could significantly decrease serum concentration of fasting glucose by 3.7% (p = 0.035), postprandial glucose at 60 min during 75 g oral glucose tolerance test by 10.7% (p = 0.006), and the area under the curve for glucose by 7.7% (p = 0.024) in those with fasting glucose level of 110 mg/dL or higher, while the placebo group did not exhibit a statistically significant decrease. Safety profiles were not different between the two groups. Conclusion: The present study suggests that ginseng berry extract has the potential to improve glucose metabolism in human, especially in those with fasting glucose level of 110 mg/dL or higher. For a more meaningful benefit, further research in people with higher blood glucose levels is required. PMID- 29348728 TI - Systems-level mechanisms of action of Panax ginseng: a network pharmacological approach. AB - Panax ginseng has been used since ancient times based on the traditional Asian medicine theory and clinical experiences, and currently, is one of the most popular herbs in the world. To date, most of the studies concerning P. ginseng have focused on specific mechanisms of action of individual constituents. However, in spite of many studies on the molecular mechanisms of P. ginseng, it still remains unclear how multiple active ingredients of P. ginseng interact with multiple targets simultaneously, giving the multidimensional effects on various conditions and diseases. In order to decipher the systems-level mechanism of multiple ingredients of P. ginseng, a novel approach is needed beyond conventional reductive analysis. We aim to review the systems-level mechanism of P. ginseng by adopting novel analytical framework-network pharmacology. Here, we constructed a compound-target network of P. ginseng using experimentally validated and machine learning-based prediction results. The targets of the network were analyzed in terms of related biological process, pathways, and diseases. The majority of targets were found to be related with primary metabolic process, signal transduction, nitrogen compound metabolic process, blood circulation, immune system process, cell-cell signaling, biosynthetic process, and neurological system process. In pathway enrichment analysis of targets, mainly the terms related with neural activity showed significant enrichment and formed a cluster. Finally, relative degrees analysis for the target-disease association of P. ginseng revealed several categories of related diseases, including respiratory, psychiatric, and cardiovascular diseases. PMID- 29348729 TI - Panax ginseng exerts antidepressant-like effects by suppressing neuroinflammatory response and upregulating nuclear factor erythroid 2 related factor 2 signaling in the amygdala. AB - Background: Depression is one of the most commonly diagnosed neuropsychiatric diseases, but the underlying mechanism and medicine are not well-known. Although Panax ginseng has been reported to exert protective effects in various neurological studies, little information is available regarding its antidepressant effects. Methods: Here, we examined the antidepressant effect and underlying mechanism of P. ginseng extract (PGE) in a chronic restraint stress (CRS)-induced depression model in mice. Results: Oral administration of PGE for 14 d decreased immobility (depression-like behaviors) time in forced swim and tail suspended tests after CRS induction, which corresponded with attenuation of the levels of serum adrenocorticotropic hormone and corticosterone, as well as attenuated c-Fos expression in the amygdala. PGE enhanced messenger RNA expression level of brain-derived neurotrophic factor but ameliorated microglial activation and neuroinflammation (the level of messenger RNA and protein expression of cyclooxygenase-2 and inducible nitric oxide synthase) in the amygdala of mice after CRS induction. Interestingly, 14-d treatment with celecoxib, a selective cyclooxygenase-2 inhibitor, and Nomega-nitro-L-arginine methyl ester hydrochloride, a selective inducible nitric oxide synthase inhibitor, attenuated depression-like behaviors after CRS induction. Additionally, PGE inhibited the upregulation of the nuclear factor erythroid 2 related factor 2 and heme oxygenase-1 pathways. Conclusion: Taken together, our findings suggest that PGE exerts antidepressant-like effect of CRS-induced depression by antineuroinflammatory and antioxidant (nuclear factor erythroid 2 related factor 2/heme oxygenase-1 activation) activities by inhibiting the hypothalamo-pituitary-adrenal axis mechanism. Further studies are needed to evaluate the potential of components of P. ginseng as an alternative treatment of depression, including clinical trial evaluation. PMID- 29348730 TI - Black ginseng activates Akt signaling, thereby enhancing myoblast differentiation and myotube growth. AB - Background: Black ginseng (BG) has greatly enhanced pharmacological activities relative to white or red ginseng. However, the effect and molecular mechanism of BG on muscle growth has not yet been examined. In this study, we investigated whether BG could regulate myoblast differentiation and myotube hypertrophy. Methods: BG-treated C2C12 myoblasts were differentiated, followed by immunoblotting for myogenic regulators, immunostaining for a muscle marker, myosin heavy chain or immunoprecipitation analysis for myogenic transcription factors. Results: BG treatment of C2C12 cells resulted in the activation of Akt, thereby enhancing heterodimerization of MyoD and E proteins, which in turn promoted muscle-specific gene expression and myoblast differentiation. BG-treated myoblasts formed larger multinucleated myotubes with increased diameter and thickness, accompanied by enhanced Akt/mTOR/p70S6K activation. Furthermore, the BG treatment of human rhabdomyosarcoma cells restored myogenic differentiation. Conclusion: BG enhances myoblast differentiation and myotube hypertrophy by activating Akt/mTOR/p70S6k axis. Thus, our study demonstrates that BG has promising potential to treat or prevent muscle loss related to aging or other pathological conditions, such as diabetes. PMID- 29348731 TI - Problems with precaution: the transfusion medicine experience. AB - The precautionary principle is a dominant paradigm governing risk-based decision making. Today, there are increasing pressures to re-examine aggressive precautionary approaches, and to assess how the principle should be applied in the modern system. In this paper, we examined three key applications of precautionary approaches in the field of transfusion medicine to provide insight into the risks and benefits of these approaches. The three case studies examined were the donor deferral policies to safeguard against transfusion transmission of human immunodeficiency virus, variant Creutzfeldt-Jacob disease, and, lastly, xenotropic murine leukemia virus-related virus. Characterization of precautionary applications was conducted using an embedded case study design. Our findings indicate that transfusion transmission mitigation strategies have become increasingly aggressive in the face of theoretical risks. In contrast, the review processes for implementation and reversal of precautionary policies have been slow, and historical donor deferral policies are still in place today. Application of precautionary approaches has proved challenging with both benefits and pitfalls. In light of emerging threats to the blood system, policy-makers should consider the implementation of frameworks to guide the appropriate application of precaution in transfusion medicine in the future. PMID- 29348732 TI - A Flexible System for Cultivation of Methanococcus and Other Formate-Utilizing Methanogens. AB - Many hydrogenotrophic methanogens use either H2 or formate as the major electron donor to reduce CO2 for methane production. The conventional cultivation of these organisms uses H2 and CO2 as the substrate with frequent replenishment of gas during growth. H2 is explosive and requires an expensive gassing system to handle safely. Formate is as an ideal alternative substrate from the standpoints of both economy and safety but leads to large changes in the culture pH during growth. Here, we report that glycylglycine is an inexpensive and nontoxic buffer suitable for growth of Methanococcus maripaludis and Methanothermococcus okinawensis. This cultivation system is suitable for growth on liquid as well as solid medium in serum bottles. Moreover, it allows cultivation of liter scale cultures without expensive fermentation equipment. This formate cultivation system provides an inexpensive and flexible alternative for the growth of formate-utilizing, hydrogenotrophic methanogens. PMID- 29348733 TI - Monte Carlo calculation of photo-neutron dose produced by circular cones at 18 MV photon beams. AB - Aim: The aim of this study is to calculate neutron contamination at the presence of circular cones irradiating by 18 MV photons using Monte Carlo code. Background: Small photon fields are one of the most useful methods in radiotherapy. One of the techniques for shaping small photon beams is applying circular cones made of lead. Using this method in high energy photon due to neutron contamination is a crucial issue. Materials and methods: Initially, Varian linac producing 18 MV photons was simulated and after validating the code, various circular cones were also simulated. Then, the number of neutrons, neutron equivalent dose and absorbed dose per Gy of photon dose were calculated along the central axis. Results: Number of neutrons per Gy of photon dose had their maximum value at depth of 2 cm and these values for 5, 10, 15, 20 and 30 mm circular cones were 9.02, 7.76, 7.61, 6.02 and 5.08 (n cm-2 Gy-1), respectively. Neutron equivalent doses per Gy of photon dose had their maximum at the surface of the phantom and these values for mentioned collimators were 1.48, 1.33, 1.31, 1.12 and 1.08 (mSv Gy-1), respectively. Neutron absorbed doses had their maximum at the surface of the phantom and these values for mentioned collimators sizes were 103.74, 99.71, 95.77, 81.46 and 78.20 (MUGy/Gy), respectively. Conclusions: As the field size gets smaller, number of neutrons, equivalent and absorbed dose per Gy of photon increase. Also, neutron equivalent dose and absorbed dose are maximum at the surface of phantom and then these values will be decreased. PMID- 29348735 TI - Dosimetric evaluation of image based brachytherapy using tandem ovoid and tandem ring applicators. AB - Aim: The aim of the study is to evaluate the differences in dosimetry between tandem-ovoid and tandem-ring gynaecologic brachytherapy applicators in image based brachytherapy. Background: Traditionally, tandem ovoid applicators were used to deliver dose to tumor in intracavitary brachytherapy. Tandem-ring, tandem cylinder and hybrid intracavitary, interstitial applicators are also used nowadays in cervical cancer brachytherapy. Methods and materials: 100 CT datasets of cervical cancer patients (stage IB2 - IIIB) receiving HDR application (50 tandem-ovoid and 50 tandem-ring) were studied. Brachytherapy was delivered using a CT-MRI compatible tandem-ovoid (50 patients) and a tandem-ring applicator (50 patients). DVHs were calculated and D2cc was recorded for the bladder and rectum and compared with the corresponding ICRU point doses. The point B dose, the treated volume, high dose volume and the treatment time were recorded and compared for the two applicators. Results: The mean D2cc of the bladder with TR applicator was 6.746 Gy. TO applicator delivered a mean D2cc of 7.160 Gy to the bladder. The mean ICRU bladder points were 5.60 and 5.63 Gy for TR and TO applicator, respectively. The mean D2cc of the rectum was 4.04 Gy and 4.79 Gy for TR and TO applicators, respectively. The corresponding ICRU point doses were 5.10 Gy and 5.66 Gy, respectively. Conclusions: The results indicate that the OAR doses assessed by DVH criteria were higher than ICRU point doses for the bladder with both tandem-ovoid and tandem-ring applicators whereas DVH based dose was lower than ICRU dose for the rectum. The point B dose, the treated volume and high dose volume was found to be slightly higher with the tandem-ovoid applicator. The mean D2cc dose for the bladder and rectum was lower with tandem ring applicators. The clinical implication of the above dosimetric differences needs to be evaluated further. PMID- 29348734 TI - Energy spectrum and dose enhancement due to the depth of the Lipiodol position using flattened and unflattened beams. AB - Aim: Lipiodol was used for stereotactic body radiotherapy combining trans arterial chemoembolization. Lipiodol used for tumour seeking in trans arterial chemoembolization remains in stereotactic body radiation therapy. In our previous study, we reported the dose enhancement effect in Lipiodol with 10* flattening filter-free (FFF). The objective of our study was to evaluate the dose enhancement and energy spectrum of photons and electrons due to the Lipiodol depth with flattened (FF) and FFF beams. Methods: FF and FFF for 6 MV beams from TrueBeam were used in this study. The Lipiodol (3 * 3 * 3 cm3) was located at depths of 1, 3, 5, 10, 20, and 30 cm in water. The dose enhancement factor (DEF) and the energy fluence were obtained by Monte Carlo calculations of the particle and heavy ion transport code system (PHITS). Results: The DEFs at the centre of Lipiodol with the FF beam were 6.8, 7.3, 7.6, 7.2, 6.1, and 5.7% and those with the FFF beam were 20.6, 22.0, 21.9, 20.0, 12.3, and 12.1% at depths of 1, 3, 5, 10, 20, and 30 cm, respectively, where Lipiodol was located in water. Moreover, spectrum results showed that more low-energy photons and electrons were present at shallow depth where Lipiodol was located in water. The variation in the low energy spectrum due to the depth of the Lipiodol position was more explicit with the FFF beam than that with the FF beam. Conclusions: The current study revealed variations in the DEF and energy spectrum due to the depth of the Lipiodol position with the FF and FFF beams. Although the FF beam could reduce the effect of energy dependence due to the depth of the Lipiodol position, the dose enhancement was overall small. To cause a large dose enhancement, the FFF beam with the distance of the patient surface to Lipiodol within 10 cm should be used. PMID- 29348736 TI - Reducing Public Health Risk During Disasters: Identifying Social Vulnerabilities. AB - All regions of the US experience disasters which result in a number of negative public health consequences. Some populations have higher levels of social vulnerability and, thus, are more likely to experience negative impacts of disasters including emotional distress, loss of property, illness, and death. To mitigate the impact of disasters on at-risk populations, emergency managers must be aware of the social vulnerabilities within their community. This paper describes a qualitative study which aimed to understand how emergency managers identify social vulnerabilities, also referred to as at-risk populations, in their populations and barriers and facilitators to current approaches. Findings suggest that although public health tools have been developed to aid emergency managers in identifying at-risk populations, they are not being used consistently. Emergency managers requested more information on the availability of tools as well as guidance on how to increase ability to identify at-risk populations. PMID- 29348738 TI - Key Parameters on the Microwave Assisted Synthesis of Magnetic Nanoparticles for MRI Contrast Agents. AB - Uniform iron oxide magnetic nanoparticles have been synthesized using a microwave assisted synthesis method in organic media and their colloidal, magnetic, and relaxometric properties have been analyzed after its transference to water and compared with those nanoparticles prepared by thermal decomposition in organic media. The novelty of this synthesis relies on the use of a solid iron oleate as precursor, which assures the reproducibility and scalability of the synthesis, and the microwave heating that resulted in being faster and more efficient than traditional heating methods, and therefore it has a great potential for nanoparticle industrial production. The effect of different experimental conditions such as the solvent, precursor, and surfactant concentration and reaction time as well as the transference to water is analyzed and optimized to obtain magnetic iron oxide nanoparticles with sizes between 8 and 15 nm and finally colloids suitable for their use as contrast agents on Magnetic Resonance Imaging (MRI). The r2 relaxivity values normalized to the square of the saturation magnetization were shown to be constant and independent of the particle size, which means that the saturation magnetization is the main parameter controlling the efficiency of these magnetic nanoparticles as MRI T2 contrast agents. PMID- 29348739 TI - Identification of Sensory Processing and Integration Symptom Clusters: A Preliminary Study. AB - Rationale: This study explored subtypes of sensory processing disorder (SPD) by examining the clinical presentations of cluster groups that emerged from scores of children with SPD on the Sensory Processing 3-Dimension (SP-3D) Inventory. Method: A nonexperimental design was used involving data extraction from the records of 252 children with SPD. Exploratory cluster analyses were conducted with scores from the SP-3D Inventory which measures sensory overresponsivity (SOR), sensory underresponsivity (SUR), sensory craving (SC), postural disorder, dyspraxia, and sensory discrimination. Scores related to adaptive behavior, social-emotional functioning, and attention among children with different sensory modulation patterns were then examined and compared. Results: Three distinct cluster groups emerged from the data: High SOR only, High SUR with SOR, and High SC with SOR. All groups showed low performance within multiple domains of adaptive behavior. Atypical behaviors associated with social-emotional functioning and attention varied among the groups. Implications: The SP-3D Inventory shows promise as a tool for assisting in identifying patterns of sensory dysfunction and for guiding intervention. Better characterization can guide intervention precision and facilitate homogenous samples for research. PMID- 29348740 TI - GA-Based Membrane Evolutionary Algorithm for Ensemble Clustering. AB - Ensemble clustering can improve the generalization ability of a single clustering algorithm and generate a more robust clustering result by integrating multiple base clusterings, so it becomes the focus of current clustering research. Ensemble clustering aims at finding a consensus partition which agrees as much as possible with base clusterings. Genetic algorithm is a highly parallel, stochastic, and adaptive search algorithm developed from the natural selection and evolutionary mechanism of biology. In this paper, an improved genetic algorithm is designed by improving the coding of chromosome. A new membrane evolutionary algorithm is constructed by using genetic mechanisms as evolution rules and combines with the communication mechanism of cell-like P system. The proposed algorithm is used to optimize the base clusterings and find the optimal chromosome as the final ensemble clustering result. The global optimization ability of the genetic algorithm and the rapid convergence of the membrane system make membrane evolutionary algorithm perform better than several state-of-the-art techniques on six real-world UCI data sets. PMID- 29348737 TI - In Vivo PET Imaging of Adenosine 2A Receptors in Neuroinflammatory and Neurodegenerative Disease. AB - Adenosine receptors are G-protein coupled P1 purinergic receptors that are broadly expressed in the peripheral immune system, vasculature, and the central nervous system (CNS). Within the immune system, adenosine 2A (A2A) receptor mediated signaling exerts a suppressive effect on ongoing inflammation. In healthy CNS, A2A receptors are expressed mainly within the neurons of the basal ganglia. Alterations in A2A receptor function and expression have been noted in movement disorders, and in Parkinson's disease pharmacological A2A receptor antagonism leads to diminished motor symptoms. Although A2A receptors are expressed only at a low level in the healthy CNS outside striatum, pathological challenge or inflammation has been shown to lead to upregulation of A2A receptors in extrastriatal CNS tissue, and this has been successfully quantitated using in vivo positron emission tomography (PET) imaging and A2A receptor-binding radioligands. Several radioligands for PET imaging of A2A receptors have been developed in recent years, and A2A receptor-targeting PET imaging may thus provide a potential additional tool to evaluate various aspects of neuroinflammation in vivo. This review article provides a brief overview of A2A receptors in healthy brain and in a selection of most important neurological diseases and describes the recent advances in A2A receptor-targeting PET imaging studies. PMID- 29348741 TI - AMOBH: Adaptive Multiobjective Black Hole Algorithm. AB - This paper proposes a new multiobjective evolutionary algorithm based on the black hole algorithm with a new individual density assessment (cell density), called "adaptive multiobjective black hole algorithm" (AMOBH). Cell density has the characteristics of low computational complexity and maintains a good balance of convergence and diversity of the Pareto front. The framework of AMOBH can be divided into three steps. Firstly, the Pareto front is mapped to a new objective space called parallel cell coordinate system. Then, to adjust the evolutionary strategies adaptively, Shannon entropy is employed to estimate the evolution status. At last, the cell density is combined with a dominance strength assessment called cell dominance to evaluate the fitness of solutions. Compared with the state-of-the-art methods SPEA-II, PESA-II, NSGA-II, and MOEA/D, experimental results show that AMOBH has a good performance in terms of convergence rate, population diversity, population convergence, subpopulation obtention of different Pareto regions, and time complexity to the latter in most cases. PMID- 29348742 TI - Emerging Trends in Machine Learning for Signal Processing. PMID- 29348743 TI - Fusion Methods for Biosignal Analysis: Theory and Applications. PMID- 29348744 TI - Improving EEG-Based Motor Imagery Classification for Real-Time Applications Using the QSA Method. AB - We present an improvement to the quaternion-based signal analysis (QSA) technique to extract electroencephalography (EEG) signal features with a view to developing real-time applications, particularly in motor imagery (IM) cognitive processes. The proposed methodology (iQSA, improved QSA) extracts features such as the average, variance, homogeneity, and contrast of EEG signals related to motor imagery in a more efficient manner (i.e., by reducing the number of samples needed to classify the signal and improving the classification percentage) compared to the original QSA technique. Specifically, we can sample the signal in variable time periods (from 0.5 s to 3 s, in half-a-second intervals) to determine the relationship between the number of samples and their effectiveness in classifying signals. In addition, to strengthen the classification process a number of boosting-technique-based decision trees were implemented. The results show an 82.30% accuracy rate for 0.5 s samples and 73.16% for 3 s samples. This is a significant improvement compared to the original QSA technique that offered results from 33.31% to 40.82% without sampling window and from 33.44% to 41.07% with sampling window, respectively. We can thus conclude that iQSA is better suited to develop real-time applications. PMID- 29348745 TI - Onychomycosis Caused by Fusarium spp. in Dakar, Senegal: Epidemiological, Clinical, and Mycological Study. AB - Fusarium spp. represent 9 to 44% of onychomycoses caused by fungi other than dermatophytes. This retrospective study describes 17 cases of Fusarium onychomycosis diagnosed at the Laboratory of Parasitology and Mycology of Le Dantec University Hospital in Dakar, Senegal, from 2014 to 2016. It included all patients received in the laboratory for suspicion of onychomycosis between January 1, 2014, and December 31, 2016. Diagnosis was based on mycological examination including direct examination and culture. Mycological analysis was considered positive when direct examination and culture were positive after at least one repeat. Seventeen Fusarium onychomycosis cases representing 12.9% of all onychomycoses reported were diagnosed. There were 5 cases on the fingernails and 12 on the toenails in 6 males and 11 females, and the mean age was 44 years (range: 26-64). Onychomycoses were diagnosed in immunocompetent patients except in a diabetic patient. The mean duration of lesions was 4.9 years (range: 1-15), and distal subungual onychomycosis was predominant. Almost all patients were from suburban areas of Dakar region. The most frequent species isolated belong to Fusarium solani complex. Because of the risk of disseminated infection in immunocompromised patients, realization of susceptibility tests is necessary to ensure better therapeutic management. PMID- 29348747 TI - Vitamin D Deficiency Is Associated with Endoscopic Severity in Patients with Crohn's Disease. AB - Background and Aims: Vitamin D deficiency is common in patients with Crohn's disease and is associated with disease activity. Relationship between vitamin D and endoscopic disease activity is unknown. The aim of the study is to determine the association between vitamin D status and endoscopic disease activity in CD patients. Methods: Consecutive hospitalized CD patients from 2014 to 2016 who received vitamin D assessment and colonoscopy were retrospectively evaluated. Clinical disease activity was assessed by Crohn's disease activity index and C reactive protein. Endoscopic activity was calculated using simple endoscopic score for Crohn's disease. Results: Median serum 25OHD level of 131 patients was lower than healthy controls [21.1 nmol/L (11.8-32.3) versus 49.9 nmol/L (44.9 57.4), P = 0.007]. 125 (95%) patients had vitamin D deficiency and the rest (5%) had vitamin D insufficiency. Serum 25OHD was inversely correlated with CRP (r = 0.308, P < 0.001), CDAI (r = -0.582, P < 0.001), SES-CD (r = -0.294, P = 0.001), and endoscopic severity stratified by SES-CD (P = 0.001). Conclusion: Vitamin D deficiency was prevalent among hospitalized CD patients. Vitamin D levels were inversely correlated with endoscopic disease activity. Vitamin D status could be a biomarker in assessing disease activity among hospitalized CD patients in addition to CDAI and CRP. PMID- 29348746 TI - Impact of Time-Restricted Feeding and Dawn-to-Sunset Fasting on Circadian Rhythm, Obesity, Metabolic Syndrome, and Nonalcoholic Fatty Liver Disease. AB - Obesity now affects millions of people and places them at risk of developing metabolic syndrome, nonalcoholic fatty liver disease (NAFLD), and even hepatocellular carcinoma. This rapidly emerging epidemic has led to a search for cost-effective methods to prevent the metabolic syndrome and NAFLD as well as the progression of NAFLD to cirrhosis and hepatocellular carcinoma. In murine models, time-restricted feeding resets the hepatic circadian clock and enhances transcription of key metabolic regulators of glucose and lipid homeostasis. Studies of the effect of dawn-to-sunset Ramadan fasting, which is akin to time restricted feeding model, have also identified significant improvement in body mass index, serum lipid profiles, and oxidative stress parameters. Based on the findings of studies conducted on human subjects, dawn-to-sunset fasting has the potential to be a cost-effective intervention for obesity, metabolic syndrome, and NAFLD. PMID- 29348748 TI - Comment on "Differences in Ventilatory Threshold for Exercise Prescription in Outpatient Diabetic and Sarcopenic Obese Subjects". PMID- 29348749 TI - The Effect of Number of Teeth and Chewing Ability on Cognitive Function of Elderly in UAE: A Pilot Study. AB - Cognitive decline is one of the major causes of disability among the aging population. The aim of this study was to explore the relationship between oral health parameters (number of teeth, chewing ability, and presence of a denture) and cognitive function in the elderly across the UAE. Fifty persons (age >= 60; 71.26 +/- 10.23) were enrolled in the study. Cognitive status was assessed using the standardized mini-mental state examination (SMMSE) and accordingly, cognitively normal subjects scoring >=24 were considered as the control group and cognitively impaired individuals scoring <=23 were considered as the low scoring group. Chewing ability was examined, number of teeth was noted, and demographical data was collected. The results of this pilot study showed that individuals with low SMMSE scores were significantly less educated (P < 0.01) and had fewer number of remaining teeth (P < 0.05) and impaired chewing ability (P < 0.05). These results demonstrate a significant link between the number of teeth, chewing ability, and cognitive function. However, this pilot study had its limitations and was the first of its kind in the UAE and Gulf region; therefore, future research addressing the limitations is needed to further explore this association. PMID- 29348750 TI - Recent Studies on the Speciation and Determination of Mercury in Different Environmental Matrices Using Various Analytical Techniques. AB - This paper reviews the current research on the speciation and determination of mercury by various analytical techniques, including the atomic absorption spectrometry (AAS), voltammetry, inductively coupled plasma optical emission spectrometry (ICP-OES), ICP-mass spectrometry (MS), atomic fluorescence spectrometry (AFS), spectrophotometry, spectrofluorometry, and high performance liquid chromatography (HPLC). Approximately 96 research papers on the speciation and determination of mercury by various analytical instruments published in international journals since 2015 were reviewed. All analytical parameters, including the limits of detection, linearity range, quality assurance and control, applicability, and interfering ions, evaluated in the reviewed articles were tabulated. In this review, we found a lack of information in speciation studies of mercury in recent years. Another important conclusion from this review was that there were few studies regarding the concentration of mercury in the atmosphere. PMID- 29348751 TI - Alkaloids Profiling of Fumaria capreolata by Analytical Platforms Based on the Hyphenation of Gas Chromatography and Liquid Chromatography with Quadrupole-Time of-Flight Mass Spectrometry. AB - Two analytical platforms, gas chromatography (GC) coupled to quadrupole-time-of flight (QTOF) mass spectrometry (MS) and reversed-phase ultrahigh performance liquid chromatography (UHPLC) coupled to diode array (DAD) and QTOF detection, were applied in order to study the alkaloid profile of Fumaria capreolata. The use of these mass analyzers enabled tentatively identifying the alkaloids by matching their accurate mass signals and suggested molecular formulae with those previously reported in libraries and databases. Moreover, the proposed structures were corroborated by studying their fragmentation pattern obtained by both platforms. In this way, 8 and 26 isoquinoline alkaloids were characterized using GC-QTOF-MS and RP-UHPLC-DAD-QTOF-MS, respectively, and they belonged to the following subclasses: protoberberine, protopine, aporphine, benzophenanthridine, spirobenzylisoquinoline, morphinandienone, and benzylisoquinoline. Moreover, the latter analytical method was selected to determine at 280 nm the concentration of protopine (9.6 +/- 0.7 mg/g), a potential active compound of the extract. In conclusion, although GC-MS has been commonly used for the analysis of this type of phytochemicals, RP-UHPLC-DAD-QTOF-MS provided essential complementary information. This analytical method can be applied for the quality control of phytopharmaceuticals containing Fumaria extracts currently found in the market. PMID- 29348752 TI - Infrared Drying as a Quick Preparation Method for Dried Tangerine Peel. AB - To establish the most convenient and effective method to dry tangerine peels, different methods (sun drying, hot-air drying, freeze drying, vacuum drying, and medium- and short-wave infrared drying) were exploited. Our results indicated that medium- and short-wave infrared drying was the best method to preserve nutraceutical components; for example, vitamin C was raised to 6.77 mg/g (D.W.) from 3.39 mg/g (sun drying). Moreover, the drying time can be shortened above 96% compared with sun drying. Importantly, the efficiency of DPPH radical scavenging was enhanced from 26.66% to 55.92%. These findings would provide a reliable and time-saving methodology to produce high-quality dried tangerine peels. PMID- 29348753 TI - Potential Effect of Leukocyte-Platelet-Rich Fibrin in Bone Healing of Skull Base: A Pilot Study. AB - Background: Reconstruction of surgical defects following cranial base surgery is challenging. Others have demonstrated that leukocyte-platelet-rich fibrin (L-PRF) stimulates tissue healing and bone regeneration. However, these studies have addressed mostly maxillofacial surgical wounds. Objective: The objective of this study was to assess the possible adjuvant role of L-PRF in inducing neoossification of the surgical bone defect in anterior skull base surgery. Methods: We identified patients who had undergone an endoscopic endonasal surgery of the anterior skull base in which L-PRF membranes were used for the reconstruction of the bone defect and who were followed up with postoperative CT scans. CT findings were then correlated with baseline scans and with the CT scans of a patient who had undergone imaging and histologic analysis after maxillofacial surgery in which L-PRF was used and in which we demonstrated bone formation. Results: Five patients fulfilled the inclusion criteria. In four patients, the CT scan demonstrated closure of the bony defect by neoosteogenesis; however, the bone appeared less dense than the surrounding normal bone. A comparison with the control patient yielded similar radiological features. Conclusion: This case series suggests that L-PRF may induce bone healing and regeneration at the surgical site defect. Multi-institutional studies with a larger series of patients are required to confirm this possibility. PMID- 29348754 TI - The Impact of Different Classification Criteria Sets on the Estimated Prevalence and Associated Risk Factors of Diastolic Dysfunction in Rheumatoid Arthritis. AB - This study compared the estimated prevalence and potential determinants of left ventricular (LV) diastolic dysfunction upon applying different classification criteria in rheumatoid arthritis (RA). LV diastolic function was assessed echocardiographically by pulsed Doppler (E/A), tissue Doppler (E/e', lateral and septal e'), and left atrial volume index in 176 RA patients. Relationships of traditional cardiovascular risk factors and RA characteristics with LV diastolic function and dysfunction according to previous and current criteria were determined in multivariate regression models. Waist-hip ratio was associated with E/A (standardised beta (SE) = -0.28 +/- 0.09, p = 0.0002) and lateral e' (standardised beta (SE) = 0.26 +/- 0.09, p = 0.01); low diastolic blood pressure was related to E/e' (standardised beta (SE) = -0.16 +/- 0.08, p = 0.04). Diastolic dysfunction prevalence differed upon applying previous (59%) compared to current (22%) criteria (p < 0.0001). One SD increase in waist-hip ratio was associated with diastolic dysfunction when applying current criteria (OR = 2.61 (95% CI = 1.51-4.52), p = 0.0006), whereas one SD increase in diastolic blood pressure was inversely related to diastolic dysfunction upon using previous criteria (OR = 0.57 (95% CI = 0.40-0.81), p = 0.002). In conclusion, application of current and previous diastolic dysfunction criteria markedly alters the prevalence and risk factors associated with diastolic dysfunction in RA. PMID- 29348755 TI - Incidentally Discovered Extranodal Marginal Zone B-Cell Lymphoma of Mucosa Associated Lymphoid Tissue in the Colon. AB - We present a case of colonic mucosa-associated lymphoid tissue (MALT) lymphoma in a 62-year-old woman diagnosed after a positive test for fecal occult blood. PMID- 29348756 TI - Neurolysis for Treatment of Infraorbital Neuropathy. AB - Two patients, a woman aged 34 and a man aged 56, were included in the study. They reported the existence of pain in the areas of the infraorbital nerve, which, over the last four to five years, aggravated by the stimuli of eating, laughing, and being touched. 2 ml of 0.5% lidocaine was administered to these patients six times percutaneously. It was observed that the ease of pain lasted until the local anesthesia lost its effect, and the pain resumed its original intensity. Neurolysis with 0.5 ml of 50% ethanol was applied to the infraorbital nerve. This procedure was applied to the first patient twice and three times to the second. Thereafter, the patients were cured completely. For the treatment of idiopathic chronic infraorbital neuropathy, the neurolysis of the infraorbital nerve using 50% ethanol could be considered as an effective treatment alternative. PMID- 29348757 TI - Corrigendum to "Subdural Empyema Complicating Bacterial Meningitis: A Challenging Diagnosis in a Patient with Polysubstance Abuse". AB - [This corrects the article DOI: 10.1155/2015/931819.]. PMID- 29348759 TI - The Flavonoid Glabridin Induces OCT4 to Enhance Osteogenetic Potential in Mesenchymal Stem Cells. AB - Mesenchymal stem cells (MSCs) are a promising tool for studying intractable diseases. Unfortunately, MSCs can easily undergo cellular senescence during in vitro expansion by losing stemness. The aim of this study was to improve the stemness and differentiation of MSCs by using glabridin, a natural flavonoid. Assessments of cell viability, cell proliferation, beta-galactosidase activity, differentiation, and gene expression by reverse transcription PCR were subsequently performed in the absence or presence of glabridin. Glabridin enhanced the self-renewal capacity of MSCs, as indicated by the upregulation of the OCT4 gene. In addition, it resulted in an increase in the osteogenic differentiation potential by inducing the expression of osteogenesis-related genes such as DLX5 and RUNX2. We confirmed that glabridin improved the osteogenesis of MSCs with a significant elevation in the expression of OSTEOCALCIN and OSTEOPONTIN genes. Taken together, these results suggest that glabridin enhances osteogenic differentiation of MSCs with induction of the OCT4 gene; thus, glabridin could be useful for stem cell-based therapies. PMID- 29348760 TI - The Effects of BMP-2, miR-31, miR-106a, and miR-148a on Osteogenic Differentiation of MSCs Derived from Amnion in Comparison with MSCs Derived from the Bone Marrow. AB - Mesenchymal stromal cells (MSCs) offering valuable anticipations for the treatment of degenerative diseases. They can be found in many tissues including amnion. MSCs from amnion (AM-MSCs) can differentiate into osteoblast similar to that of bone marrow-derived MSCs (BM-MSCs). However, the ability is not much efficient compared to BM-MSCs. This study aimed to examine the effects of BMP-2 and miRNAs on osteogenic differentiation of AM-MSCs compared to those of BM-MSCs. The osteogenic differentiation capacity after miRNA treatment was assessed by ALP expression, ALP activity, and osteogenic marker gene expression. The results showed that the osteogenic differentiation capacity increased after BMP-2 treatment both in AM-MSCs and BM-MSCs. MiR-31, miR-106a, and miR-148a were downregulated during the osteogenic differentiation. After transfection with anti miRNAs, ALP activity and osteogenic genes were increased over the time of differentiation. The data lead to the potential for using AM-MSCs as an alternative source for bone regeneration. Moreover, the information of miRNA expression and function during osteogenic differentiation may be useful for the development of new therapeutics or enhanced an in vitro culture technique required for stem cell-based therapies in the bone regeneration. PMID- 29348761 TI - Prevalence of Middle Ear Infections and Associated Risk Factors in Children under 5 Years in Gasabo District of Kigali City, Rwanda. AB - Middle ear infections are common in children, and delay in diagnosis and treatment may result in complications such as delays in speech and language development and deafness. The aim of this study was to determine the prevalence and care seeking behaviour for middle ear infections in children under five years in Kigali city. We conducted a cross-sectional study among 810 children aged 6-59 months in Gasabo district of Kigali city, Rwanda. The prevalence of middle ear infections was 5.8%, of whom 4% had chronic suppurative otitis media. A child was less likely to develop middle ear infections if they lived in an urban setting (OR = 0.52, 95% CI: 0.285-0.958) but more likely to develop middle ear infections if exposed to household smoke (OR = 2.54, 95% CI: 1.18-5.46). Parents were unlikely to know that their child had an ear infection (OR: 0.15, 95% CI: 0.06 0.34). Middle ear infection remains a public health problem in Rwanda but many parents were not aware of its presence in the affected children. There is a need to raise awareness of parents about ear infection and to promote early care seeking from qualified health workers. PMID- 29348758 TI - Lymphocytes in Placental Tissues: Immune Regulation and Translational Possibilities for Immunotherapy. AB - Immune modulation at the fetomaternal interface is crucial to ensure that the fetal allograft is not rejected. In the present review, the focus is to describe basic functions of lymphocyte populations and how they may contribute to fetomaternal immune regulation, as well as determining what proportions and effector functions of these cells are reported to be present in placental tissues in humans. Also explored is the possibility that unique cell populations at the fetomaternal interface may be targets for adoptive cell therapy. Increasing the understanding of immune modulation during pregnancy can give valuable insight into other established fields such as allogeneic hematopoietic stem cell transplantation and solid organ transplantation. In these settings, lymphocytes are key components that contribute to inflammation and rejection of either patient or donor tissues following transplantation. In contrast, an allogeneic fetus eludes rejection by the maternal immune system. PMID- 29348762 TI - Kerosene Oil Poisoning among Children in Rural Sri Lanka. AB - Introduction: Kerosene oil poisoning is one of common presentations to emergency departments among children in rural territories of developing countries. This study aimed to describe clinical manifestations, reasons for delayed presentations, harmful first aid practices, complications, and risk factors related to kerosene oil poisoning among children in rural Sri Lanka. Methods: This multicenter study was conducted in North-Central province of Sri Lanka involving all in-patient children with acute kerosene oil poisoning. Data were collected over seven years from thirty-six hospitals in the province. Data collection was done by pretested, multistructured questionnaires and a qualitative study. Results: Male children accounted for 189 (60.4%) while 283 (93%) children were below five years. The majority of parents belonged to farming community. Most children ingested kerosene oil in home kitchen. Mortality rate was 0.3%. Lack of transport facilities and financial resources were common reasons for delayed management. Hospital transfer rate was 65.5%. Thirty percent of caregivers practiced harmful first aid measures. Commonest complication was chemical pneumonitis. Strongest risk factors for kerosene oil poisoning were unsafe storage, inadequate supervision, and inadequate house space. Conclusions: Effect of safe storage and community education in reducing the burden of kerosene oil poisoning should be evaluated. Since many risk factors interact to bring about the event of poisoning in a child, holistic approaches to community education in rural settings are recommended. PMID- 29348764 TI - Study on the Clinical Safe and Effective Methods of Arsenic-Containing Compound Qinghuang Powder in the Treatment of Myelodysplastic Syndrome. AB - Objective: To establish the clinical safe and effective methods of arsenic containing compound-Qinghuang Powder (compound-QHP) in the treatment of myelodysplastic syndrome (MDS). Methods: 200 patients with MDS were treated with compound-QHP (daily dose of 0.1 g realgar). The blood arsenic concentrations (BACs) were detected by atomic fluorescence spectrophotometry (HF-AFS). After treatment for 1 month, the patients were randomly divided into group A and group B when the BACs were less than 20 MUg/L. Daily dose of realgar was maintained in group A and it was increased to that when the BACs were more than 20 MUg/L in group B. The BAC and clinical efficacy and safety in two groups were compared at the end of the treatment with compound-QHP. Results: The average BAC of group B was significantly higher than that of group A (P < 0.01). The rates of hematology improvement and reduced transfusion were significantly higher in group B than in group A (P < 0.05). The HGB, ANC, and PLT significantly increased in group B after treatment (P > 0.05). Conclusions: Monitoring the BAC and adjusting the daily dose of realgar to increase the effective BAC and then improving efficacy without increasing the clinical toxicity are the clinical safe and effective methods in the treatment of MDS. PMID- 29348763 TI - Inflammasomes in Mycobacterium tuberculosis-Driven Immunity. AB - The development of effective innate and subsequent adaptive host immune responses is highly dependent on the production of proinflammatory cytokines that increase the activity of immune cells. The key role in this process is played by inflammasomes, multimeric protein complexes serving as a platform for caspase-1, an enzyme responsible for proteolytic cleavage of IL-1beta and IL-18 precursors. Inflammasome activation, which triggers the multifaceted activity of these two proinflammatory cytokines, is a prerequisite for developing an efficient inflammatory response against pathogenic Mycobacterium tuberculosis (M.tb). This review focuses on the role of NLRP3 and AIM2 inflammasomes in M.tb-driven immunity. PMID- 29348765 TI - Preventive Effect and Safety of a Follicle Stimulating Hormone Inhibitory Formulation Containing a Mixture of Coicis Semen and Artemisia capillaris for Precocious Puberty: A Preliminary Experimental Study Using Female Rats. AB - Background: Precocious puberty is a common endocrine disease in children. Inappropriate activation of hypothalamic-pituitary-gonadal axis leads to the development of secondary sexual characteristics at an earlier age than normal children and causes short stature in adulthood. Objectives: The aim of this study is to evaluate the preventive effects of a herbal formulation containing a mixture of Coicis Semen and Artemisia capillaris (hEIF extract) on precocious puberty. Methods: The preventive effect of hEIF extract on precocious puberty in rats was evaluated by measuring blood component after 3 weeks of treatment via oral administration. Network pharmacological analyses were performed to predict the bioactive components of hEIF extract. Results: In vivo studies showed that hEIF extract significantly reduced follicle stimulating hormone (FSH) levels. After treatment with 200 mg/kg of hEIF extract, the FSH level was 5.33 +/- 1.10 ng/mL, whereas the FSH level in the vehicle group was 46.73 +/- 0.80 ng/mL. Moreover, the use of hEIF extract did not stimulate body growth and bone accretion in rats. The network pharmacological analysis led to the identification of multiple targets of hEIF extract related to lipolysis and the female sex hormone-related pathways. Conclusion: hEIF extract can be used as an FSH inhibitor for the treatment of precocious puberty. PMID- 29348766 TI - Inhibition of Tumor Growth of Human Hepatocellular Carcinoma HepG2 Cells in a Nude Mouse Xenograft Model by the Total Flavonoids from Arachniodes exilis. AB - A tumor growth model of human hepatocellular carcinoma HepG2 cells in nude mice was employed to investigate the antitumor activity of the total flavonoids extracted from Arachniodes exilis (TFAE) in vivo. Several biochemical assays including hematoxylin-eosin (HE) staining, immunohistochemistry, and Western blot were performed to elucidate the mechanism of action of total flavonoids extracted from Arachniodes exilis (TFAE). The results showed that TFAE effectively inhibited the tumor growth of hepatocellular carcinoma in nude mice and had no significant effect on body weight, blood system, and functions of liver and kidney. Expression levels of proapoptotic proteins Bax and cleaved caspase-3 remarkably increased while the expressions of Bcl-2, HIF-1alpha, and VEGF were suppressed by TFAE. These results suggested that the antitumor potential of TFEA was implied by the apoptosis of tumor cells and the inhibition of angiogenesis in tumor tissue. PMID- 29348767 TI - Dangguijihwang-tang and Dangguijakyak-san Prevent Menopausal Symptoms and Dangguijihwang-tang Prevents Articular Cartilage Deterioration in Ovariectomized Obese Rats with Monoiodoacetate-Induced Osteoarthritis. AB - We investigated whether dangguijakyak-san (DJY) and dangguijihwang-tang (DJH), oriental medicines traditionally used for inflammatory diseases, could prevent and/or delay the progression of postmenopausal symptoms and osteoarthritis in osteoarthritis-induced estrogen-deficient rats. Treated ovariectomized (OVX) rats consumed either 1% DJY or 1% DJH in the diets. Positive-control rats were given 30 MUg/kg bw 17beta-estradiol and control rats were given 1% fat as were the normal-control rats. All rats received high-fat diets for 8 weeks. At the 9th week, OVX rats received articular injections of monoiodoacetate (MIA) or saline (normal control) into the right knee. At 3 weeks after MIA injection, DJY reduced visceral-fat mass and improved glucose metabolism by reducing insulin resistance, whereas DJH increased BMD and decreased insulin resistance. DJH improved weight distribution in the right knee and maximum running velocity on a treadmill at days 14 and 21 as much as those of the positive control. TNF-alpha, IL-1beta, and IL-6 levels in articular cartilage were much higher in the control than the positive control, whereas both DJY and DJH reduced the levels to those of the positive control. The histological analysis assessed articular cartilage damage near the tidemark and proteoglycan loss in the control versus the positive control; DJY and DJH prevented this damage and proteoglycan loss. In conclusion, DJY may provide an effective treatment for improving glucose tolerance, and DJH may be appropriate for preventing osteoarthritis. PMID- 29348768 TI - Investigating the Mechanisms of Action of Depside Salt from Salvia miltiorrhiza Using Bioinformatic Analysis. AB - Salvia miltiorrhiza is a traditional Chinese medicinal herb used for treating cardiovascular diseases. Depside salt from S. miltiorrhiza (DSSM) contains the following active components: magnesium lithospermate B, lithospermic acid, and rosmarinic acid. This study aimed to reveal the mechanisms of action of DSSM. After searching for DSSM-associated genes in GeneCards, Search Tool for Interacting Chemicals, SuperTarget, PubChem, and Comparative Toxicogenomics Database, they were subjected to enrichment analysis using Multifaceted Analysis Tool for Human Transcriptome. A protein-protein interaction (PPI) network was visualised; module analysis was conducted using the Cytoscape software. Finally, a transcriptional regulatory network was constructed using the TRRUST database and Cytoscape. Seventy-three DSSM-associated genes were identified. JUN, TNF, NFKB1, and FOS were hub nodes in the PPI network. Modules 1 and 2 were identified from the PPI network, with pathway enrichment analysis, showing that the presence of NFKB1 and BCL2 in module 1 was indicative of a particular association with the NF-kappaB signalling pathway. JUN, TNF, NFKB1, FOS, and BCL2 exhibited notable interactions among themselves in the PPI network. Several regulatory relationships (such as JUN -> TNF/FOS, FOS -> NFKB1 and NFKB1 -> BCL2/TNF) were also found in the regulatory network. Thus, DSSM exerts effects against cardiovascular diseases by targeting JUN, TNF, NFKB1, FOS, and BCL2. PMID- 29348769 TI - Research and Development of Atractylodes lancea (Thunb) DC. as a Promising Candidate for Cholangiocarcinoma Chemotherapeutics. AB - Treatment and control of cholangiocarcinoma (CCA): the bile duct cancer is limited by the lack of effective chemotherapeutic drugs and alternative drugs are needed, particularly those from natural sources. This article reviews steps of research and development of Atractylodes lancea (Thunb) DC. (AL) as potential candidate for CCA chemotherapy, with adoption of the reverse pharmacology approach. Major steps include (1) reviewing of existing information on its phytochemistry and pharmacological properties, (2) screening of its activities against CCA, (3) standardization of AL, (4) nonclinical studies to evaluate anti CCA activities, (5) phytochemistry and standardization of AL extract, (6) development of oral pharmaceutical formulation of standardized AL extract, and (7) toxicity testing of oral pharmaceutical formulation of standardized AL extract. Results from a series of our study confirm anti-CCA potential and safety profiles of both the crude extract and the finished product (oral pharmaceutical formulation of the standardized AL extract). Phases I and II clinical trials of the product to confirm tolerability and efficacy in healthy subjects and patients with advanced stage CCA will be carried out soon. PMID- 29348770 TI - Vitamin E-Mediated Modulation of Glutamate Receptor Expression in an Oxidative Stress Model of Neural Cells Derived from Embryonic Stem Cell Cultures. AB - Glutamate is the primary excitatory neurotransmitter in the central nervous system. Excessive concentrations of glutamate in the brain can be excitotoxic and cause oxidative stress, which is associated with Alzheimer's disease. In the present study, the effects of vitamin E in the form of tocotrienol-rich fraction (TRF) and alpha-tocopherol (alpha-TCP) in modulating the glutamate receptor and neuron injury markers in an in vitro model of oxidative stress in neural-derived embryonic stem (ES) cell cultures were elucidated. A transgenic mouse ES cell line (46C) was differentiated into a neural lineage in vitro via induction with retinoic acid. These cells were then subjected to oxidative stress with a significantly high concentration of glutamate. Measurement of reactive oxygen species (ROS) was performed after inducing glutamate excitotoxicity, and recovery from this toxicity in response to vitamin E was determined. The gene expression levels of glutamate receptors and neuron-specific enolase were elucidated using real-time PCR. The results reveal that neural cells derived from 46C cells and subjected to oxidative stress exhibit downregulation of NMDA, kainate receptor, and NSE after posttreatment with different concentrations of TRF and alpha-TCP, a sign of neurorecovery. Treatment of either TRF or alpha-TCP reduced the levels of ROS in neural cells subjected to glutamate-induced oxidative stress; these results indicated that vitamin E is a potent antioxidant. PMID- 29348771 TI - A Review on the Medicinal Plant Dalbergia odorifera Species: Phytochemistry and Biological Activity. AB - The crucial medicinal plant Dalbergia odorifera T. Chen species belongs to genus Dalbergia, with interesting secondary metabolites, consisting of main classes of flavonoid, phenol, and sesquiterpene derivatives, as well as several arylbenzofurans, quinones, and fatty acids. Biological studies were carried out on extracts, fractions, and compounds from this species involved in cytotoxic assays; antibacterial, antioxidative, anti-inflammatory, antithrombotic, antiplatelet, antiosteosarcoma, antiosteoporosis, antiangiogenesis, and prostaglandin biosynthetic enzyme inhibition activities; vasorelaxant activities; alpha-glucosidase inhibitory activities; and many other effects. In terms of the valuable resources for natural new drugs development, D. odorifera species are widely used as medicinal drugs in many countries for treatment of cardiovascular diseases, cancer, diabetes, blood disorders, ischemia, swelling, necrosis, or rheumatic pain. Although natural products from this plant have been increasingly playing an important role in drug discovery programs, there is no supportive evidence to provide a general insight into phytochemical studies on D. odorifera species and biological activities of extracts, fractions, and isolated compounds. To a certain extent, this review deals with an overview of almost naturally occurring compounds from this species, along with extensive coverage of their biological evaluations. PMID- 29348772 TI - Kyungheechunggan-Tang-01, a New Herbal Medication, Suppresses LPS-Induced Inflammatory Responses through JAK/STAT Signaling Pathway in RAW 264.7 Macrophages. AB - Medicinal plants have been used as alternative therapeutic tools to alleviate inflammatory diseases. The objective of this study was to evaluate anti inflammatory properties of Kyungheechunggan-tang- (KCT-) 01, KCT-02, and Injinchunggan-tang (IJCGT) as newly developed decoctions containing 3-11 herbs in LPS-induced macrophages. KCT-01 showed the most potent inhibitory effects on LPS induced NO, PGE2, TNF-alpha, and IL-6 production among those three herbal formulas. In addition, KCT-01 significantly inhibited LPS-induced iNOS and COX-2 at protein levels and expression of iNOS, COX-2, TNF-alpha, and IL-6 at mRNA levels. Molecular data revealed that KCT-01 attenuated the activation of JAK/STAT signaling cascade without affecting NF-kappaB or AP-1 activation. In ear inflammation induced by croton oil, KCT-01 significantly reduced edema, MPO activity, expression levels of iNOS and COX-2, and STAT3 phosphorylation in ear tissues. Taken together, our findings suggest that KCT-01 can downregulate the expression of proinflammatory genes by inhibiting JAK/STAT signaling pathway under inflammatory conditions. This study provides useful data for further exploration and application of KCT-01 as a potential anti-inflammatory medicine. PMID- 29348773 TI - Poly-epsilon-Caprolactone Microsphere Polymers Containing Usnic Acid: Acute Toxicity and Anti-Inflammatory Activity. AB - Usnic acid (UA) has been studied by its pharmacological properties; however, it presents moderate toxicity, low solubility, and absorption by biological membranes. The aim of this study was to develop poly-epsilon-caprolactone microsphere polymers containing UA (UA-micro) and evaluate their acute toxicity and anti-inflammatory activity. The microspheres were prepared by multiple emulsion technique (water/oil/water) and characterized by the encapsulation efficiency, particle size, polydispersity index, and zeta potential. The acute toxicity of UA and UA-micro (25-50 mg/kg; p.o.) was evaluated in mice. The anti inflammatory activity of UA and UA-micro was evaluated by subcutaneous air pouch and carrageenan-induced paw edema in rat, with measurement of inflammatory cytokines and MPO levels. The UA presented encapsulation efficiency of 97.72%, particle size of 13.54 micrometers, polydispersity index of 2.36, and zeta potential of 44.5 +/- 2.95 mV. The UA-micro presented lower acute toxicity (LD50 value up to 2000 mg/kg; p.o.) when compared to UA. UA-micro and UA (25 mg/kg) significantly reduced paw volume and decreased MPO levels, whereas only UA-micro (50 mg/kg) reduced significantly IL-1beta, TNF-alpha, and NO levels in inflammatory exudate. These results suggest that controlled release systems, as microspheres, can be a promising alternative to reduce the toxicity of UA, making it a viable compound for inflammation therapy. PMID- 29348774 TI - Five Indigenous Plants of Pakistan with Antinociceptive, Anti-Inflammatory, Antidepressant, and Anticoagulant Properties in Sprague Dawley Rats. AB - Five medicinal plants of Pakistan were investigated for their antinociceptive, anti-inflammatory, antidepressant, and anticoagulant potential. Antinociceptive activity was estimated by hot plate and writhing assay. In hot plate assay, Quercus dilatata (52.2%) and Hedera nepalensis (59.1%) showed moderate while Withania coagulans (65.3%) displayed a significant reduction in pain. On the other hand, in writhing assay, Quercus dilatata (49.6%), Hedera nepalensis (52.7%), and Withania coagulans (62.0%) showed comparative less activity. In anti inflammatory assays crude extracts showed significant edema inhibition in a dose dependent manner. In carrageenan assay, the highest activity was observed for Withania coagulans (70.0%) followed by Quercus dilatata (66.7%) and Hedera nepalensis (63.3%). Similar behavior was observed in histamine assay with percentage inhibitions of 74.3%, 60.4%, and 63.5%, respectively. Antidepressant activity was estimated by forced swim test and the most potent activity was revealed by Withania coagulans with immobility time 2.2s (95.9%) followed by Hedera nepalensis with immobility time 25.3s (53.4%). Moreover, the crude extracts of Fagonia cretica (74.6%), Hedera nepalensis (73.8%), and Phytolacca latbenia (67.3%) showed good anticoagulant activity with coagulation times 86.9s, 84.3s, and 67.5s, respectively. Collectively, the results demonstrate that these five plants have rich medicinal constituents which can be further explored. PMID- 29348775 TI - Testicular Dysfunction Ameliorative Effect of the Methanolic Roots Extracts of Maytenus procumbens and Ozoroa paniculosa. AB - The traditional use of medicinal plants in the management of sexual dysfunctions has a long history. This study investigated testicular dysfunction ameliorative effect of the methanolic roots extracts of Maytenus procumbens and Ozoroa paniculosa in a butanol-induced testicular dysfunction rat model. The rats in respective experimental groups were orally administered with the extract at 50 and 250 mg/kg bw, daily for 28 days. The cytotoxicity of the extracts was evaluated against HEK293, MCF-7, and HT29 cell lines. The extracts exhibited moderate (LC50 30.3-330.2 MUg/mL) to weak (LC50 200.8-438.4 MUg/mL) cytotoxicity level on the cancer and normal cells, respectively. While relatively lower serum testosterone levels and total sperm count along with decreased numbers of spermatogonia were noted in the untreated group, all these parameters were improved in the groups treated with the extracts at 250 mg/kg. Improved histomorphological changes of the testes were also observed when compared to the untreated group. While the extracts (at 250 mg/kg) increased serum reduced glutathione content and decreased malondialdehyde content, a relatively higher serum creatinine level was also observed in the treated animals group. The results indicate that the two plant extracts have potential to ameliorate testicular dysfunction. PMID- 29348776 TI - Effects of the Fruit Extract of Tribulus terrestris on Skin Inflammation in Mice with Oxazolone-Induced Atopic Dermatitis through Regulation of Calcium Channels, Orai-1 and TRPV3, and Mast Cell Activation. AB - Ethnopharmacological Relevance: In this study, we investigated the effects of Tribulus terrestris fruit (Leguminosae, Tribuli Fructus, TF) extract on oxazolone induced atopic dermatitis in mice. Materials and Methods: TF extract was prepared with 30% ethanol as solvent. The 1% TF extract with or without 0.1% HC was applied to the back skin daily for 24 days. Results: 1% TF extract with 0.1% HC improved AD symptoms and reduced TEWL and symptom scores in AD mice. 1% TF extract with 0.1% HC inhibited skin inflammation through decrease in inflammatory cells infiltration as well as inhibition of Orai-1 expression in skin tissues. TF extract inhibited Orai-1 activity in Orai-1-STIM1 cooverexpressing HEK293T cells but increased TRPV3 activity in TRPV3-overexpressing HEK293T cells. TF extract decreased beta-hexosaminidase release in RBL-2H3 cells. Conclusions: The present study demonstrates that the topical application of TF extract improves skin inflammation in AD mice, and the mechanism for this effect appears to be related to the modulation of calcium channels and mast cell activation. This outcome suggests that the combination of TF and steroids could be a more effective and safe approach for AD treatment. PMID- 29348777 TI - A Randomized Controlled Study of the Yi Qi Gu Biao Pill in the Treatment of Frequent Exacerbator Phenotype in Chronic Obstructive Pulmonary Disease (Lung and Spleen Qi Deficiency Syndrome). AB - Objective: To evaluate the efficacy and safety of Yi Qi Gu Biao (YQGB) pill in treating frequent exacerbator phenotype in chronic obstructive pulmonary disease (lung and spleen qi deficiency syndrome) (FEPCOPD). Methods: This prospective, randomized, double-blind, controlled study assessed 112 cases (64 included) of FEPCOPD treated at the outpatient department in our hospital in January-August 2016. The patients were randomly divided into YQGB and placebo (Pb) and treated for three months. Lung function, CAT, mMRC, and TCM symptom scores (TCMs) were observed. Results: Compared with Pb, YQGB showed decreased wheezing symptom scores (WSs) and TCMs at one month and decreased CAT and TCMs at three months. From one to three months, CAT, cough, sputum, WSs, and TCMs in YQGB were lower than pretreatment values. But in Pb, CAT was lower than pretreatment values after one month; CAT, sputum, and TCMs were lower than pretreatment values after two months; CAT, cough, sputum, WSs, and TCMs were lower than pretreatment values after three months. Conclusion: Yi Qi Gu Biao pill can improve wheezing, health status, and TCMs in FEPCOPD and also can shorten the durations of cough, sputum, and wheezing. This trial is registered in the Clinical Trials Registry of China: ChiCTR-IOR-15007542 (on 8 December 2015). PMID- 29348778 TI - Marketing health education: advertising margarine and visualising health in Britain from 1964-c.2000. AB - During the post-war period, margarine was re-conceptualised as a value-added product with distinct health benefits. This article contextualises the advertising of margarine as a healthy food, focusing on Unilever's Flora brand as an important case study in legitimising the emergent role of disease prevention as a marketing tool. It uses the methodology of visual culture to examine how advertising employed chronic disease prevention as a selling tool. This article assesses how the post-war environment gave rise to new ways of visually advertising food, and how these promoted innovative visualisations of food, the body and their interactions with health. PMID- 29348779 TI - Mutual proximity graphs for improved reachability in music recommendation. AB - This paper is concerned with the impact of hubness, a general problem of machine learning in high-dimensional spaces, on a real-world music recommendation system based on visualisation of a k-nearest neighbour (knn) graph. Due to a problem of measuring distances in high dimensions, hub objects are recommended over and over again while anti-hubs are nonexistent in recommendation lists, resulting in poor reachability of the music catalogue. We present mutual proximity graphs, which are an alternative to knn and mutual knn graphs, and are able to avoid hub vertices having abnormally high connectivity. We show that mutual proximity graphs yield much better graph connectivity resulting in improved reachability compared to knn graphs, mutual knn graphs and mutual knn graphs enhanced with minimum spanning trees, while simultaneously reducing the negative effects of hubness. PMID- 29348781 TI - Sequential Probability Ratio Testing with Power Projective Base Method Improves Decision-Making for BCI. AB - Obtaining a fast and reliable decision is an important issue in brain-computer interfaces (BCI), particularly in practical real-time applications such as wheelchair or neuroprosthetic control. In this study, the EEG signals were firstly analyzed with a power projective base method. Then we were applied a decision-making model, the sequential probability ratio testing (SPRT), for single-trial classification of motor imagery movement events. The unique strength of this proposed classification method lies in its accumulative process, which increases the discriminative power as more and more evidence is observed over time. The properties of the method were illustrated on thirteen subjects' recordings from three datasets. Results showed that our proposed power projective method outperformed two benchmark methods for every subject. Moreover, with sequential classifier, the accuracies across subjects were significantly higher than that with nonsequential ones. The average maximum accuracy of the SPRT method was 84.1%, as compared with 82.3% accuracy for the sequential Bayesian (SB) method. The proposed SPRT method provides an explicit relationship between stopping time, thresholds, and error, which is important for balancing the time accuracy trade-off. These results suggest SPRT would be useful in speeding up decision-making while trading off errors in BCI. PMID- 29348782 TI - Adsorption and Desulfurization Mechanism of Thiophene on Layered FeS(001), (011), and (111) Surfaces: A Dispersion-Corrected Density Functional Theory Study. AB - Layered transition-metal chalcogenides have emerged as a fascinating new class of materials for catalysis. Here, we present periodic density functional theory (DFT) calculations of the adsorption of thiophene and the direct desulfurization reaction pathways on the (001), (011), and (111) surfaces of layered FeS. The fundamental aspects of the thiophene adsorption, including the initial adsorption geometries, adsorption energies, structural parameters, and electronic properties, are presented. From the calculated adsorption energies, we show that the flat adsorption geometries, wherein the thiophene molecule forms multiple pi bonds with the FeS surfaces, are energetically more favorable than the upright adsorption geometries, with the strength of adsorption decreasing in the order FeS(111) > FeS(011) > FeS(001). The adsorption of the thiophene onto the reactive (011) and (111) surfaces is shown to be characterized by charge transfer from the interacting Fe d-band to the pi-system of the thiophene molecule, which causes changes of the intramolecular structure including loss of aromaticity and elongation of the C-S bonds. The thermodynamic and kinetic analysis of the elementary steps involved in the direct desulfurization of thiophene on the reactive FeS surfaces is also presented. Direct desulfurization of thiophene occurs preferentially on the (111) surface, as reflected by the overall exothermic reaction energy calculated for the process (ER = -0.15 eV), with an activation energy of 1.58 eV. PMID- 29348783 TI - Breast Massage, Implant Displacement, and Prevention of Capsular Contracture After Breast Augmentation With Implants: A Review of the Literature. AB - Objective: Capsular contracture, the most common complication following breast augmentation with implants, is a complex inflammatory reaction that ultimately leads to fibrosis at the contact site between the implant and tissue. A number of peri-, pre-, and postoperative techniques have been postulated and implemented by many surgeons to reduce the incidence of capsular contracture. Breast massage and implant displacement technique is a commonly recommended practice that has not been well studied in regard to capsular contracture prevention. The authors present a review of the literature addressing methods and efficacy of massage and implant displacement techniques after breast augmentation. Methods: A literature review was performed using PubMed and the Cochrane Collaboration Library for primary research articles on breast massage or implant displacement after breast augmentation with implants for breast contracture prevention between January 1975 and March 2017. Exclusion criteria were studies that were focused on the treatment rather than prevention of breast contracture, addressed other strategies of preventing contracture as the main focus, or did not report the number of patients studied. Information related to massage technique and capsular contracture outcomes was extracted. Results: The literature search yielded 4 relevant studies, with a total of 587 patients. Outcomes evaluated included massage technique, onset of massage, frequency of massage, and incidence of capsular contracture. Breast massage was introduced between 2 days and 2 weeks postoperatively, performed twice daily, and lasted from 2 to 5 minutes for each breast. Final postoperative follow-up concluded between 6 and 36 months. The average capsular contracture rate was similar, 31% (range, 0-35) in the massage group versus 40% (range, 30-90) in the nonmassage group. Conclusions: While multiple techniques have been proposed and practiced in the prevention of capsular contracture, breast massage and implant displacement techniques remain controversial. While there is a method to measure adequacy of breast massage pressure, it is not widely utilized. The available data do not support breast massage to prevent capsular contracture; more studies with standardized techniques are needed to better assess the efficacy of breast massage in preventing capsular contracture. PMID- 29348780 TI - Host factors that influence mother-to-child transmission of HIV-1: genetics, coinfections, behavior and nutrition. AB - Mother-to-child transmission (MTCT) is the most important mode of HIV-1 acquisition among infants and children and it can occur in utero, intrapartum and postnatally through breastfeeding. Great progress has been made in preventing MTCT through use of antiretroviral regimens during gestation, labor/delivery and breastfeeding. The mechanisms of MTCT, however, are multifactorial and remain incompletely understood. This review focuses on select host factors affecting MTCT, in particular genetic factors, coexisting infections, behavioral factors and nutrition. Whereas much emphasis has been placed on decreasing maternal HIV-1 viral load, an important determinant of MTCT, through use of antiretroviral agents, complementary focus on overall maternal health is often neglected. By addressing coinfections in mothers and infants, improving the mother's nutritional status and modifying risky behaviors and practices, not only is maternal and child health improved, but a direct benefit in reducing MTCT can be derived. The study of genetic variations in susceptibility to HIV-1 infection is rapidly evolving, and the future is likely to bring revolutionary changes in HIV 1 prevention by enhancing natural resistance to infection and by individually tailoring pharmacologic regimens. PMID- 29348784 TI - Recipient Vessel Selection in Head and Neck Reconstruction. AB - Objective: Recipient vessel caliber may be the single most important variable for flow to free tissue transfer. We performed cadaveric dissection of the external carotid artery and its branches to analyze average diameter in order to determine an algorithm for recipient vessel selection in head and neck reconstruction. Methods: The external carotid artery and branches were exposed on 3 lightly embalmed male human cadavers, aged 82 to 85 years. Each vessel was dissected, and luminal diameters were recorded with calipers. Results: The proximal ECA had the greatest average diameter (4 +/- 0.6 mm) and potential flow; followed by distal ECA (2.85 +/- 0.4 mm) facial (2.0 +/- 0.6 mm), lingual (1.65 +/- 0.6 mm), superior thyroid (1 +/- 0.3 mm), and superficial temporal (0.85 +/- 0.4 mm). There was a trend towards size variation between sides of the same cadaver. Conclusion: The external carotid artery has the greatest internal diameter and potential blood flow. It should be considered, when feasible, especially for defects of the upper third of the head. For defects of the lower third, the facial artery and the lingual artery should be utilized before the smaller diameter superior thyroid artery. Vessel selection is more challenging in the setting of radiation therapy, complex trauma, and prior neck surgery. In these settings, it is useful to have knowledge of the vascular anatomy and an objective algorithm for recipient vessel selection. PMID- 29348785 TI - New Insights into the Benefits of Polyphenols in Chronic Diseases. PMID- 29348787 TI - Oxidative Stress in Metabolic Disorders and Drug-Induced Injury: The Potential Role of Nrf2 and PPARs Activators. PMID- 29348786 TI - DNA Methylation and the Potential Role of Methyl-Containing Nutrients in Cardiovascular Diseases. AB - Patients suffering from cardiovascular diseases (CVDs) experience a low quality of life and increase pressure on healthcare systems both nationally and globally. DNA methylation, which refers to the pathway by which DNA methyltransferase facilitates the addition of a methyl group to DNA, is of critical importance in this respect primarily because the epigenetic modification is implicated in a range of serious conditions including atherosclerosis, CVDs, and cancer. Research findings indicate that the number of epigenetic alterations can be elicited (both in utero and in adults) through the administration of certain nutritional supplements, including folic acid and methionine; this is partly attributable to the effect employed by methyl-containing nutrients in DNA methylation. Thus, for the purpose of illuminating viable therapeutic measures and preventive strategies for CVDs, research should continue to explore the intricate associations that exist between epigenetic regulation and CVD pathogenesis. This review centers on an exposition of the mechanism by which DNA methylation takes place, the impact it has on a range of conditions, and the potential clinical value of nutrition, driven mainly by the observation that nutritional supplements such as folic acid can affect DNA methylation. PMID- 29348788 TI - The Role of Redox-Regulating Enzymes in Inoperable Breast Cancers Treated with Neoadjuvant Chemotherapy. AB - Although validated predictive factors for breast cancer chemoresistance are scarce, there is emerging evidence that the induction of certain redox-regulating enzymes may contribute to a poor chemotherapy effect. We investigated the possible association between chemoresistance and cellular redox state regulation in patients undergoing neoadjuvant chemotherapy (NACT) for breast cancer. In total, 53 women with primarily inoperable or inflammatory breast cancer who were treated with NACT were included in the study. Pre-NACT core needle biopsies and postoperative tumor samples were immunohistochemically stained for nuclear factor erythroid 2-related factor 2 (Nrf2), Kelch-like ECH-associated protein 1 (Keap1), thioredoxin (Trx), and peroxiredoxin I (Prx I). The expression of all studied markers increased during NACT. Higher pre-NACT nuclear Prx I expression predicted smaller size of a resected tumor (p = 0.00052; r = -0.550), and higher pre-NACT cytoplasmic Prx I expression predicted a lower amount of evacuated nodal metastasis (p = 0.0024; r = -0.472). Pre-NACT nuclear Trx expression and pre-NACT nuclear Keap1 expression had only a minor prognostic significance as separate factors, but when they were combined, low expression for both antibodies before NACT predicted dismal disease-free survival (log-rank p = 0.0030). Our results suggest that redox-regulating enzymes may serve as potential prognostic factors in primarily inoperable breast cancer patients. PMID- 29348789 TI - Pretreatment Donors after Circulatory Death with Simvastatin Alleviates Liver Ischemia Reperfusion Injury through a KLF2-Dependent Mechanism in Rat. AB - Objective: Severe hepatic ischemia reperfusion injury (IRI) can result in poor short- and long-term graft outcome after transplantation. The way to improve the viability of livers from donors after circulatory death (DCD) is currently limited. The aim of the present study was to explore the protective effect of simvastatin on DCD livers and investigate the underlying mechanism. Methods: 24 male rats randomly received simvastatin or its vehicle. 30 min later, rat livers were exposed to warm ischemia in situ for 30 min. Livers were removed and cold stored in UW solution for 24 h, subsequently reperfused for 60 min with an isolated perfused rat liver system. Liver injury was evaluated during and after warm reperfusion. Results: Pretreatment of DCD donors with simvastatin significantly decreased IRI liver enzyme release, increased bile output and ATP, and ameliorated hepatic pathological changes. Simvastatin maintained the expression of KLF2 and its protective target genes (eNOS, TM, and HO-1), reduced oxidative stress, inhibited innate immune responses and inflammation, and increased the expression of Bcl-2/Bax to suppress hepatocyte apoptosis compared to DCD control group. Conclusion: Pretreatment of DCD donors with simvastatin improves DCD livers' functional recovery probably through a KLF2-dependent mechanism. These data suggest that simvastatin may provide a potential benefit for clinical DCD liver transplantation. PMID- 29348790 TI - Effects of Aging and Tocotrienol-Rich Fraction Supplementation on Brain Arginine Metabolism in Rats. AB - Accumulating evidence suggests that altered arginine metabolism is involved in the aging and neurodegenerative processes. This study sought to determine the effects of age and vitamin E supplementation in the form of tocotrienol-rich fraction (TRF) on brain arginine metabolism. Male Wistar rats at ages of 3 and 21 months were supplemented with TRF orally for 3 months prior to the dissection of tissue from five brain regions. The tissue concentrations of L-arginine and its nine downstream metabolites were quantified using high-performance liquid chromatography and liquid chromatography tandem mass spectrometry. We found age related alterations in L-arginine metabolites in the chemical- and region specific manners. Moreover, TRF supplementation reversed age-associated changes in arginine metabolites in the entorhinal cortex and cerebellum. Multiple regression analysis revealed a number of significant neurochemical-behavioral correlations, indicating the beneficial effects of TRF supplementation on memory and motor function. PMID- 29348791 TI - Zinc Protects Oxidative Stress-Induced RPE Death by Reducing Mitochondrial Damage and Preventing Lysosome Rupture. AB - Zinc deficiency is known to increase the risk of the development of age-related macular degeneration (AMD), although the underlying mechanism remains poorly defined. In this study, we investigated the effect of zinc on retinal pigment epithelium (RPE) survival and function under oxidative conditions. Zinc level was 5.4 MUM in normal culture conditions (DMEM/F12 with 10% FCS) and 1.5 MUM in serum free medium (DMEM/F12). Under serum-free culture conditions, the treatment of RPE cells with oxidized photoreceptor outer segment (oxPOS) significantly increased intracellular ROS production, reduced ATP production, and promoted RPE death compared to oxPOS-treated RPE under normal culture condition. Serum deprivation also reduced RPE phagocytosis of oxPOS and exacerbated oxidative insult-induced cathepsin B release from lysosome, an indicator of lysosome rupture. The addition of zinc in the serum-free culture system dose dependently reduced ROS production, recovered ATP production, and reduced oxidative stress- (oxPOS- or 4-HNE) induced cell death. Zinc supplementation also reduced oxidative stress-mediated cathepsin B release in RPE cells. Our results suggest that zinc deficiency sensitizes RPE cells to oxidative damage, and zinc supplementation protects RPE cells from oxidative stress-induced death by improving mitochondrial function and preventing lysosome rupture. PMID- 29348792 TI - Coenzyme Q10 Regulates Antioxidative Stress and Autophagy in Acute Myocardial Ischemia-Reperfusion Injury. AB - Background: Oxidative stress and autophagy both play key roles in continuous cardiomyocyte death and cardiac dysfunction after reperfusion therapy for acute myocardial ischemia-reperfusion injury. Coenzyme Q10 (CQ10), which is a fat soluble quinone antioxidant, is involved in the pathophysiological processes of neurodegenerative diseases, cancer, diabetes, heart failure, and other diseases. Our objective was to determine if, and by what mechanism, CQ10 can ameliorate acute myocardial ischemia-reperfusion injury and improve heart function. Methods and Results: Fat-soluble CQ10 in soybean oil solvent was preconditioned in rats with acute myocardial ischemia-reperfusion injury by intraperitoneal injection. Oxidant and antioxidant levels were compared between the preconditioned and control groups. Autophagy was measured by Western blotting analysis of autophagy proteins. Proapoptotic proteins and immunofluorescence were used to assess cell apoptosis. Infarct size was determined by triphenyl tetrazolium chloride (TTC) staining and Evans blue staining and visualized myocardial pathology by tissue staining. Finally, we assessed cardiac function by electrocardiography (ECG) and hemodynamics. Conclusions: This study reveals that CQ10 preconditioning regulates antioxidant levels and the oxidant balance, enhances autophagy, reduces myocardial apoptosis and death, and improves cardiac function in rats with acute ischemia-reperfusion injury. These results imply that CQ10 protects against acute myocardial ischemia-reperfusion injury via the antioxidative stress and autophagy pathways. PMID- 29348794 TI - Tubby-like protein 1 (Tulp1) is a target of microRNA-134 and is down-regulated in experimental epilepsy. AB - MicroRNAs are important determinants of gene expression via post-transcriptional control of the protein levels of their mRNA targets. MicroRNA-134 (miR-134) has emerged as an important brain-specific microRNA which has been implicated in the control of dendritic spine morphology, neuronal differentiation and apoptosis. Here we show that Tubby-like protein 1 (Tulp1) is a target of miR-134. Tulp1 protein showed a similar cellular distribution pattern in the hippocampus to miR 134 and displayed an inverse expression pattern in the mouse retina. Bioinformatics analyses identified a conserved miR-134 binding site in the 3' untranslated region of both mouse and human Tulp1 and luciferase reporter assays confirmed miR-134 targets Tulp1 in vitro. Induction of prolonged seizures in mice resulted in upregulation of miR-134 and downregulation of protein levels of Tulp1 which were reversed in animals injected with locked nucleic acid-modified antagomirs targeting miR-134. Finally, knockdown of Tulp1 in human neurons caused an increase in vulnerability to excitotoxicity. These data identify Tulp1/TULP1 as a novel target of miR-134, which may contribute to underlying pathomechanisms in epilepsy. PMID- 29348795 TI - Therapeutic angiogenesis of exosomes for ischemic stroke. AB - Angiogenesis is the process through which new blood vessels are formed, while therapeutic angiogenesis aims to promote and control the angiogenic response. Ischemia results from the lack of blood flow with oxygen and nutrients. Therapeutic angiogenesis is crucial in preserving brain tissue and bodily functions after ischemic stroke. Various approaches have been proposed to promote angiogenesis in ischemic diseases. Traditional protein/gene and subsequent stem/progenitor cell approaches have not shown consistent efficacy for ischemic diseases in clinical trials. Exosomes are microparticles secreted from cells and conduct cell-cell communication including stem cell or cancer cell induced pro angiogenesis. Utilization of exogenous exosomes for the treatment of ischemic diseases is an emerging approach which may prevent certain disadvantages such as easy degradation and tumor formation happened in other strategies. This review highlights recent reports on the use of exosomes as a therapeutic agent to promote angiogenesis in ischemic stroke. PMID- 29348793 TI - Inflammasome in drug abuse. AB - Drug abuse disorders refer to a set of related negative health implications associated with compulsive drug seeking and use. Because almost all addictive drugs act on the brain, many of them cause neurological impairments after long term abuse. Neuropathological studies have revealed a widespread impairment of the cellular elements. As the key components to limit the damage of neural cells, CNS immune system is also found affected by these drugs, directly or indirectly. It has been shown that drugs of abuse alter neuroimmune gene expression and signaling. Growing studies on neuroimmune factors further demonstrate their indispensable role in drugs-induced neurotoxicity. As an important proinflammatory intracellular receptor, inflammasome is activated in many neurodegenerative diseases in response to a broad range of damage-associated molecular patterns (DAMPs) signals. In the cases of drug abuse, especially in those with comorbid of HIV infection and sustained pain, inflammasome activation significantly promotes the neuroinflammation-associated toxicities. To understand inflammasome in drug-associated neurotoxic activity, we reviewed the role played by inflammasome in drug abuse-induced microglial neurotoxicity and evaluated the potential of imflammasone as a therapeutic target for drug abuse disorders based on recent development of various selective small-molecular inflammasome inhibitors. PMID- 29348796 TI - Condition-specific transcriptional regulation of neuronal ion channel genes in brain ischemia. AB - In the context of seeking novel therapeutic targets for treating ischemic stroke, the preconditioning ischemia-induced brain ischemic tolerance has been used as a model of endogenously operative, broad-based neuroprotective mechanisms. Targeting such mechanisms is considered potentially less prone to adverse side effects, as those seen in many failed clinical trials that focus on single targets using exogenous compounds. Results from previous studies have revealed an overall decrease in potassium channel activity in tolerance development. The objective of this study is to identify ion channel genes that are differentially regulated under different brain ischemic conditions, as a mean to identify those ion channels that are associated with ischemic brain injury and ischemic tolerance. In mice in vivo, transient focal cerebral ischemia was induced by middle cerebral artery occlusion. In cultured neuronal cells in vitro, simulated ischemia was modeled by oxygen-glucose deprivation. For both in vivo and in vitro studies, three principal ischemic conditions were included: ischemic preconditioned, injured and tolerant, respectively, plus appropriate controls. In these model systems, transcript levels of a panel of 84 neuronal ion channels genes were analyzed with a quantitative real-time PCR mini-array. The results showed that, both in vivo and in vitro, there was a predominant down regulation in neuronal ion channel genes under ischemic-tolerant conditions, and an up regulation in ischemic injury. Similar changes were observed among potassium, sodium and calcium channel genes. A number of regulated genes exhibited opposing changes under ischemic-injured and ischemic-tolerant conditions. This subset of ion channel genes exemplifies potentially novel leads for developing multi factorial therapeutic targets for treating ischemic stroke. PMID- 29348797 TI - Experimentally-induced ventricular arrhythmias. AB - Hypoxia and reoxygenation, ischemia and reperfusion, catecholamine infusion, ouabain, sodium pentobarbital and caffeine, can all be used experimentally to induce ventricular arrhythmias. According to the Lambeth Convention guidelines our experimentally-induced ventricular arrhythmias include but are not limited to: ventricular premature beats (VPB), ventricular salvos (VS), ventricular bigeminy (VB), nonsustained ventricular tachycardia (VTn), sustained ventricular tachycardia (VTs) and ventricular fibrillation (VF, or if the heart is not defibrillated, sudden cardiac death). We have studied these arrhythmias in the absence and presence of adenosine deaminase, methyl xanthines, and more recently, acetaminophen. Our laboratory was the first to discover the anti-arrhythmic properties of acetaminophen an analgesic used in Western medicine for more than 100 years before our publication. We have also identified other cardioprotective properties of acetaminophen, and have begun to work out some of the cellular/molecular mechanisms. For example, we know that acetaminophen protects hypoxic/ischemic cardiac mitochondria, in part, by sustaining function of the mitochondrial permeability transition pore (MPTP, a protein involved in regulating mitochondrial pH). Acetaminophen also attenuates the actions of matrix metalloproteinases that can be harmful to myocardial contractile proteins. Of course, like all science, more work is needed to expand on these and related topics. PMID- 29348798 TI - TRPM7 is a unique target for therapeutic intervention of stroke. AB - Ischemic stroke is a leading cause of death and long-term disabilities. The current therapy is limited to thrombolysis and mechanical recanalization, which have limited success. A better understanding of the mechanisms underlying ischemic brain injury is therefore needed for the development of more effective interventions. Glutamate receptor-mediated Ca2+ overload and neurotoxicity have been well established for decades. However, clinical trials failed to show a satisfactory effect with the antagonists of glutamate receptors. Other glutamate independent mechanisms, such as activation of acid-sensing ion channels and transient receptor potential melastatin 7 (TRPM7), have recently emerged as important events responsible for neuronal injury under ischemic conditions. In this review, we discuss how TRPM7 channels participate in ischemic brain injury. PMID- 29348799 TI - Low-dose ethanol excites lateral habenula neurons projecting to VTA, RMTg, and raphe. AB - It is unclear how social drinking can contribute to the development of addiction in susceptible individuals. However, alcohol's aversive properties are a well known factor contributing to its abuse. The lateral habenula (LHb) is a key brain structure responding to various aversive stimuli, including those related to alcohol. We recently reported that ethanol at 10 mM or less that can be achieved by social drinking activates many LHb neurons and drives aversive conditioning. The current study sought to identify LHb circuits that are activated by a low dose of ethanol using immunohistochemistry and anatomic tracing techniques on adult Sprague-Dawley rats. We showed here that an intraperitoneal injection of ethanol (0.25 g/kg), resulting in a blood ethanol concentration of 5.6 mM, significantly increased the number of cFos immunoreactive (IR) neurons in the LHb. Most of the ethanol-activated cFos-IR LHb neurons expressed vGluT2 (vesicular glutamate transporters 2, a marker of a glutamatergic phenotype). These LHb neurons projected to the ventral tegmental area (VTA), rostromedial tegmental nucleus (RMTg), and dorsal raphe. Moreover, injections of the anterograde tracer AAV-CaMKIIa-eGFP into the lateral hypothalamus produced a significant amount of labeled fibers with vGluT2 positive terminals on the ethanol-activated LHb cells. These results indicate that the LHb neurons stimulated by a low-dose of ethanol project to the VTA, RMTg, and dorsal raphe, and receive excitatory projections from the lateral hypothalamus. These neurocircuits may play a crucial role in mediating the initial aversive effects produced by a low-dose of ethanol. PMID- 29348800 TI - Methanolic extract of Cola nitida elicits dose-dependent diuretic, natriuretic and kaliuretic activities without causing electrolyte impairment, hepatotoxicity and nephrotoxicity in rats. AB - Cola nitida (Kolanut) is conventionally used in tropical Africa for the treatment of all kinds of ailments such as migraine, morning sickness, metabolic disorders etc. However, this study was designed to investigate the diuretic, natriuretic and kaliuretic activities of methanolic extract of Cola nitida (MECN) in male Wistar rats. Adult male Wistar rats were randomly allotted into control (25 ml/kg b.w.), furosemide (20 mg/kg b.w; standard), MECN1 (100 mg/kg), MECN2 (200 mg/kg), MECN3 (300 mg/kg), MECN4 (400 mg/kg), MECN5 (500 mg/kg), MECN6 (600 mg/kg) groups with n=6. The extract was prepared as previously described and the treatment lasted for 14 days. Urine volume and diuretic indices were estimated. Urine electrolytes, plasma electrolytes, plasma/renal AST/ALT, plasma creatinine and urea were assayed using flame photometry and standard colorimetric method respectively.Administration of different doses of C. nitida significantly altered body weight gain and water intake but not food intake compared with control group. There were significant increases in urine volume and urine electrolytes (Na+, K+ and Cl-), a decrease in plasma/renal ALT and AST activities, a decrease in plasma creatinine and urea concentration and no alteration in plasma electrolytes when compared with control and furosemide-treated groups. Our study suggests that MECN elicits diuretic, natriuretic, and kaliuretic activities without causing electrolyte impairment, hepatotoxicity and nephrotoxicity. These effects are dose-dependent. PMID- 29348801 TI - The Attack of the Smart Particles: Should Bacteria Be Afraid? AB - A shocking state of affairs; the use of nanoparticles as simple carriers is dead and outdated. Stimuli-responsive nanoparticles have emerged as active participants in the therapeutic landscape, rather than inert molecule carriers. And this time they are here to join the ongoing war against an old enemy: bacteria. PMID- 29348802 TI - Fluorescent Carbon Nanoparticles in Medicine for Cancer Therapy: An Update. AB - In the past few years since our viewpoint on carbon nanoparticles was first published in 2013 (Kumar, V.; Toffoli, G.; Rizzolio, F. ACS Med. Chem. Lett.2013, 4 (11), 1012-1013), a considerable progress has been made in the area of synthesis, functionalization, and applications of fluorescent carbon nanoparticles (CNPs). This update aims to highlight some key points achieved in the last 4 years in the development of CNPs with a particular emphasis on the approaches to ameliorate clinical applications of CNPs as therapeutics, diagnostics, and theranostics agents. PMID- 29348803 TI - Synthesis of a Chloroalkene Dipeptide Isostere-Containing Peptidomimetic and Its Biological Application. AB - The first rapid and efficient chemical synthesis of a cyclic Arg-Gly-Asp (RGD) peptide containing a chloroalkene dipeptide isostere (CADI) is reported. By a developed synthetic method, an N-tert-butylsulfonyl protected CADI was obtained utilizing diastereoselective allylic alkylation as a key reaction. This CADI was also transformed into an N-Fmoc protected CADI in a few steps. The CADI was used in Fmoc-based solid-phase peptide synthesis. The first synthesis of a CADI containing cyclic RGD peptide was successful, and the synthesized CADI-containing peptidomimetic was found to be a more potent inhibitor against integrin-mediated cell attachment than the parent cyclic peptide. PMID- 29348804 TI - Lysine Analogue of Polymyxin B as a Significant Opportunity for Photodynamic Antimicrobial Chemotherapy. AB - In order to highlight the potential of photodynamic antimicrobial chemotherapy in case of infections by antibiotic resistant-strains, a new antimicrobial peptide conjugate has been synthesized, consisting of a derivative of polymyxin B and a cationic porphyrin covalently attached together to a spacer. A polymyxin-derived moiety was subjected to a primary structural modification in the replacement of four diaminobutyrate residues with lysine ones. This modification was done in order to strongly reduce bactericidal activity, with the aim to eliminate the potential rise of polymyxin-resistant strains. Despite this modification, this new conjugate displayed a strong photobactericidal activity against Gram-positive as well as Gram-negative bacteria. It was further shown that this conjugate was able to strongly stick to the cell walls of either kind of strain, thus helping to inactivate bacteria through the production of reactive oxygen species under light irradiation. PMID- 29348805 TI - Synthesis and SAR of 1,2,3,4-Tetrahydroisoquinoline-Based CXCR4 Antagonists. AB - CXCR4 is the most common chemokine receptor expressed on the surface of many cancer cell types. In comparison to normal cells, cancer cells overexpress CXCR4, which correlates with cancer cell metastasis, angiogenesis, and tumor growth. CXCR4 antagonists can potentially diminish the viability of cancer cells by interfering with CXCL12-mediated pro-survival signaling and by inhibiting chemotaxis. Herein, we describe a series of CXCR4 antagonists that are derived from (S)-5,6,7,8-tetrahydroquinolin-8-amine that has prevailed in the literature. This series removes the rigidity and chirality of the tetrahydroquinoline providing 2-(aminomethyl)pyridine analogs, which are more readily accessible and exhibit improved liver microsomal stability. The medicinal chemistry strategy and biological properties are described. PMID- 29348806 TI - Therapeutic Nanosystem Consisting of Singlet-Oxygen-Responsive Prodrug and Photosensitizer Excited by Two-Photon Light. AB - Using light as the sole stimulus and employing the generated singlet oxygen as a therapeutic agent and the trigger to activate chemo-drug release could serve as an elegant way to bring into full play the advantageous features of light and enhance therapeutic efficacy through a combination of chemotherapy and photodynamic therapy. Herein a liposomal drug system has been developed by embedding a fluorescent photosensitizer and a prodrug into phospholipid vesicles. Upon one- or two-photon light irradiation, the photosensitizer generates singlet oxygen, which removes the protecting group of the prodrug and subsequently causes the release of the active drug chlorambucil. With the combined action of O21 and chlorambucil, highly controllable cytotoxicity toward cancer cells was achieved. In addition, the fluorescent photosensitizer gives out fluorescent signal acting as the drug monitoring agent. This strategy may provide an efficient approach for cancer treatment and some useful insights for designing light-stimulated on demand therapeutic systems. PMID- 29348807 TI - Discovery of Spiro Oxazolidinediones as Selective, Orally Bioavailable Inhibitors of p300/CBP Histone Acetyltransferases. AB - p300 and its paralog CBP can acetylate histones and other proteins and have been implicated in a number of diseases characterized by aberrant gene activation, such as cancer. A novel, highly selective, orally bioavailable histone acetyltransferase (HAT) domain inhibitor has been identified through virtual ligand screening and subsequent optimization of a unique hydantoin screening hit. Conformational restraint in the form of a spirocyclization followed by substitution with a urea led to a significant improvement in potency. Replacement of the hydantoin moiety with an oxazolidinedione followed by fluoro substitution led to A-485, which exhibits potent cell activity, low clearance, and high oral bioavailability. PMID- 29348808 TI - Dual NAMPT/HDAC Inhibitors as a New Strategy for Multitargeting Antitumor Drug Discovery. AB - Novel dual nicotinamide phosphoribosyltransferase (NAMPT) and histone deacetylase (HDAC) inhibitors were designed by a pharmacophore fusion approach. The thiazolocarboxamide inhibitors were highly active for both targets. In particular, compound 7f (NAMPT IC50 = 15 nM, HDAC1 IC50 = 2 nM) showed potent in vivo antitumor efficacy in the HCT116 xenograft model. The study offers a new strategy for multitarget antitumor drug discovery by simultaneously acting on cancer metabolism and epigenetics. PMID- 29348809 TI - Discovery of MK-8722: A Systemic, Direct Pan-Activator of AMP-Activated Protein Kinase. AB - 5'-Adenosine monophosphate-activated protein kinase (AMPK) is a key regulator of mammalian energy homeostasis and has been implicated in mediating many of the beneficial effects of exercise and weight loss including lipid and glucose trafficking. As such, the enzyme has long been of interest as a target for the treatment of Type 2 Diabetes Mellitus. We describe the optimization of beta1 selective, liver-targeted AMPK activators and their evolution into systemic pan activators capable of acutely lowering glucose in mouse models. Identifying surrogates for the key acid moiety in early generation compounds proved essential in improving beta2-activation and in balancing improvements in plasma unbound fraction while avoiding liver sequestration. PMID- 29348810 TI - Structure-Based Virtual Screening for the Discovery of Novel Inhibitors of New Delhi Metallo-beta-lactamase-1. AB - Bacterial resistance has become a worldwide concern after the emergence of metallo-beta-lactamases (MBLs). They represent one of the major mechanisms of bacterial resistance against beta-lactam antibiotics. Among MBLs, New Delhi metallo-beta-lactamase-1 NDM-1, the most prevalent type, is extremely efficient in inactivating nearly all-available antibiotics including last resort carbapenems. No inhibitors for NDM-1 are currently available in therapy, making the spread of NDM-1 producing bacterial strains a serious menace. With this perspective, we performed a structure-based in silico screening of a commercially available library using FLAPdock and identified several, non-beta-lactam derivatives as promising candidates active against NDM-1. The binding affinities of the highest scoring hits were measured in vitro revealing, for some of them, low micromolar affinity toward NDM-1. For the best inhibitors, efficacy against resistant bacterial strains overexpressing NDM-1 was validated, confirming their favorable synergistic effect in combination with the carbapenem Meropenem. PMID- 29348811 TI - Disconnecting the Estrogen Receptor Binding Properties and Antimicrobial Properties of Parabens through 3,5-Substitution. AB - Commercially utilized parabens are employed for their antimicrobial properties, but a weak binding to the estrogen receptor alpha (ERalpha) may lead to breast cancer in some applications. Modification of the paraben scaffold should allow for a disconnection of these observed properties. Toward this goal, various 3,5 substituted parabens were synthesized and assessed for antimicrobial properties against S. aureus as well as competitive binding to the ERalpha. The minimum inhibitory concentration assay confirmed retention of antimicrobial activity in many of these derivatives, while all compounds exhibited decreased xenoestrogen activity as determined by a combination of competitive enzyme linked immunosorbent assay (ELISA), proliferation, and estrogen receptor binding assay. Thus, these changes to the paraben scaffold have led to a multitude of paraben derivatives with antimicrobial properties up to 16 times more active than the parent paraben and that are devoid or significantly diminished of potential breast cancer causing properties. PMID- 29348812 TI - Design and Synthesis of Isoquinolidinobenzodiazepine Dimers, a Novel Class of Antibody-Drug Conjugate Payload. AB - Antibody-drug conjugates (ADCs) represent an important class of emerging cancer therapeutics. Recent ADC development efforts highlighted the use of pyrrolobenzodiazepine (PBD) dimer payload for the treatment of several cancers. We identified the isoquinolidinobenzodiazepine (IQB) payload (D211), a new class of PBD dimer family of DNA damaging payloads. We have successfully synthesized all three IQB stereoisomers, experimentally showed that the purified (S,S)-D211 isomer is functionally more active than (R,R)-D221 and (S,R)-D231 isomers by >50,000-fold and ~200-fold, respectively. We also synthesized a linker-payload (D212) that uses (S,S)-D211 payload with a cathepsin cleavable linker, a hydrophilic PEG8 spacer, and a thiol reactive maleimide. In addition, homogeneous ADCs generated using D212 linker-payload exhibited ideal physicochemical properties, and anti-CD33 ADC displayed a robust target-specific potency on AML cell lines. These results demonstrate that D212 linker-payload described here can be utilized for developing novel ADC therapeutics for targeted cancer therapy. PMID- 29348813 TI - Synthesis and Structure-Activity Relationship Study of Biliatresone, a Plant Isoflavonoid That Causes Biliary Atresia. AB - We report the first synthesis of the plant isoflavonoid biliatresone. The convergent synthesis has been applied to the synthesis of several analogs, which have facilitated the first structure-activity relationship study for this environmental toxin that, on ingestion, recapitulates the phenotype of biliary atresia. PMID- 29348814 TI - Targeting CD38 alleviates tumor-induced immunosuppression. PMID- 29348815 TI - Lysosome-targeting agents in cancer therapy. AB - Despite considerable efforts from multiple laboratories worldwide, highly specific inhibitors of autophagy for clinical use are not yet available. Lysosomal inhibitors are being employed instead, in spite of multiple limitations that are summarized herein. PMID- 29348816 TI - Development of a predictive miRNA signature for breast cancer risk among high risk women. AB - Significant limitations exist in our ability to predict breast cancer risk at the individual level. Circulating microRNAs (C-miRNAs) have emerged as measurable biomarkers (liquid biopsies) for cancer detection. We evaluated the ability of C miRNAs to identify women most likely to develop breast cancer by profiling miRNA from serum obtained long before diagnosis. 24 breast cancer cases and controls (matched for risk and age) were identified from women enrolled in the High-Risk Breast Program at the UVM Cancer Center. Isolated RNA from serum was profiled for over 2500 human miRNAs. The miRNA expression data were input into a stepwise linear regression model to discover a multivariable miRNA signature that predicts long-term risk of breast cancer. 25 candidate miRNAs were identified that individually classified cases and controls based on statistical methodologies. A refined 6-miRNA risk-signature was discovered following regression modeling that distinguishes cases and controls (AUC0.896, CI 0.804-0.988) in this cohort. A functional relationship between miRNAs that cluster together when cases are contrasted against controls was suggested and confirmed by pathway analyses. The discovered 6 miRNA risk-signature can discriminate high-risk women who ultimately develop breast cancer from those who remain cancer-free, improving current risk assessment models. Future studies will focus on functional analysis of the miRNAs in this signature and testing in larger cohorts. We propose that the combined signature is highly significant for predicting cancer risk, and worthy of further screening in larger, independent clinical cohorts. PMID- 29348817 TI - A Mitochondrial-targeted purine-based HSP90 antagonist for leukemia therapy. AB - Reprogramming of mitochondrial functions sustains tumor growth and may provide therapeutic opportunities. Here, we targeted the protein folding environment in mitochondria by coupling a purine-based inhibitor of the molecular chaperone Heat Shock Protein-90 (Hsp90), PU-H71 to the mitochondrial-targeting moiety, triphenylphosphonium (TPP). Binding of PU-H71-TPP to ADP-Hsp90, Hsp90 co chaperone complex or mitochondrial Hsp90 homolog, TRAP1 involved hydrogen bonds, pi-pi stacking, cation-pi contacts and hydrophobic interactions with the surrounding amino acids in the active site. PU-H71-TPP selectively accumulated in mitochondria of tumor cells (17-fold increase in mitochondria/cytosol ratio), whereas unmodified PU-H71 showed minimal mitochondrial localization. Treatment of tumor cells with PU-H71-TPP dissipated mitochondrial membrane potential, inhibited oxidative phosphorylation in sensitive cell types, and reduced ATP production, resulting in apoptosis and tumor cell killing. Unmodified PU-H71 had no effect. Bioinformatics analysis identified a "mitochondrial Hsp90" signature in Acute Myeloid Leukemia (AML), which correlates with worse disease outcome. Accordingly, inhibition of mitochondrial Hsp90s killed primary and cultured AML cells, with minimal effects on normal peripheral blood mononuclear cells. These data demonstrate that directing Hsp90 inhibitors with different chemical scaffolds to mitochondria is feasible and confers improved anticancer activity. A potential "addiction" to mitochondrial Hsp90s may provide a new therapeutic target in AML. PMID- 29348818 TI - High CYP2E1 activity correlates with hepatofibrogenesis induced by nitrosamines. AB - Hepatofibrosis, which leads to cirrhosis and eventual hepatocellular carcinoma, is a common response to chronic toxin-mediated liver injury. Nitrosamines are potent hepatotoxic agents that cause necrosis and subsequent fibrosis in the liver as a result of cytochrome P450 2E1 (CYP2E1)-dependent metabolism, which generates toxic metabolites that form adducts with nucleic acids, leading to hepatotoxicity and mutagenesis. Herein, CYP2E1 activity and content were determined in fibrotic liver tissue from patients with hepatocellular carcinoma. The relationship between CYP2E1 innate activity and hepatofibrogenesis was evaluated, the effect of inhibition of CYP2E1 activity on hepatofibrosis was determined in a Sprague-Dawley rat model of diethylnitrosamine-induced hepatofibrosis. The results demonstrated that the CYP2E1 activities in human fibrotic tissues are significantly higher than that in normal liver tissues. In rats treated with diethylnitrosamine, the livers demonstrated various degree of fibrotic changes and collagen deposition in individual rats. The Ishak score, which determines the stage of fibrosis, correlated with CYP2E1 innate activity, with greater fibrosis in rat livers with higher CYP2E1 innate activity. Inhibition of CYP2E1 during diethylnitrosamine treatment decreased hepatofibrosis and there was an inverse correlation between the degree of inhibition and the extent of hepatofibrosis. Therefore, high CYP2E1 activity is a risk factor for hepatofibrogenesis induced by nitrosamines. PMID- 29348819 TI - Recombinant protein of Haemonchus contortus small GTPase ADP-ribosylation factor 1 (HcARF1) modulate the cell mediated immune response in vitro. AB - ADP-ribosylation factors (ARFs) are members of the Ras-related small GTPase family involved in the vesicular trafficking regulation. Immunomodulatory effects of these proteinson host cell arenot being addressed yet. H. contortus small GTPase ADP-ribosylation 1 gene (HcARF1) was cloned and recombinant protein of HcARF1 (rHcARF1) was successfully expressed in Escherichia coli. Binding activity of rHcARF1 to goat PBMCs was confirmed by immunofluorescence assay (IFA) and its immunomudulatory effects on cytokine secretion, cell proliferation, cell migration and nitric oxide production (NO) were observed by co-incubation of rHcARF1. IFA results revealed that rHcARF1 could bind to the PBMCs. The interaction of rHcARF1 modulated the cytokine production, the production of IL-4, IL-10 and IL-17 was increased in a dose dependent manner, however, the IFN-gamma production was significantly decreased. Cell migration and NO production were significantly increased by rHcARF1, whereas, rHcARF1 treatment significantly suppressed the proliferation of the PBMC in a dose dependent manner. Our findings showed that the rHcARF1 play important roles on the goat PBMCs. PMID- 29348820 TI - Effects of different cytokines on immune responses of rainbow trout in a virus DNA vaccination model. AB - Seven rainbow trout cytokine genes (interleukin (IL)-2, IL-8, IL-15, IL-17, IL 1beta, intracellular interferon (iIFN) 1a, and IFN-gamma2) were evaluated for their adjuvant effects on a DNA vaccine, called pG, containing the glycoprotein gene of infectious hematopoietic necrosis virus (IHNV). Distinct DNA constructs in expression plasmid pcDNA3.1 encoding a cytokine gene were generated. Immunofluorescence assays in rainbow trout gonadal cells demonstrated successful protein expression from all these constructs. Subsequently, fish were immunized with pG alone or together with a cytokine expression plasmid. Results showed that each cytokine plasmids at an appropriate dose showed notable effects on immune gene expression. IL-17 and IFN-gamma2 can enhance early specific IgM response. All cytokines, except IL-8, can benefit initial neutralizing antibody (NAb) titers. At 35 days post immunization (dpi), NAb titers of fish immunized with pG and IL-2, iIFN1a, or IFN-gamma2 plasmids remained at high levels (1:160). NAb titers of fish immunized with pG alone decreased to 1:40. IL-8 or IL-1beta can enhance antigen-specific proliferative T-cell responses at 14 dpi. At 28 dpi, coinjection of pG with IL-2, IL-8, IL-15, or IL-17 plasmids induced considerably stronger lymphocyte proliferation than that with injection of pG alone. All cytokine plasmids delivered with pG plasmid enhanced protection of trout against IHNV-mediated mortality. These results indicate that the type and dose of trout cytokine genes injected into fish affect quality of immune response to DNA vaccination. PMID- 29348821 TI - Glycan microarray reveal induced IgGs repertoire shift against a dietary carbohydrate in response to rabbit anti-human thymocyte therapy. AB - Humans have circulating antibodies against diverse glycans containing N glycolylneuraminic acid (Neu5Gc) due to function-loss mutation of the CMAH gene. This xenogenic non-human carbohydrate is abundant in red meat, xenografts and biotherapeutics. Low levels of diet-derived Neu5Gc is also present on normal human endothelial cells, and together with anti-Neu5Gc antibodies could potentially mediate "xenosialitis" chronic-inflammation. Rabbit anti-human thymocyte globulin (ATG) is a drug containing polyclonal IgG glycoproteins commonly used as an immunosuppressant in human transplantation and autoimmune diseases. In type-1 diabetes patients, infusion of Neu5Gc-glycosylated ATG caused increased global anti-Neu5Gc response. Here, for the first time we explore changes in anti-Neu5Gc IgG repertoire following the immunization elicited by ATG, compared with the basal antibodies repertoire that reflect exposure to dietary Neu5Gc. We used glycan microarrays with multiple Neu5Gc-glycans and controls to elucidate eventual differences in ATG-elicited repertoire, before/after ATG administration and track their kinetics (0, 1, 18 and 24 months). Response of all basal-pre-existing Neu5Gc-specific antibodies rapidly increased. This response peaked at one month post-ATG, with enhanced affinity, then resolved at 18-24 months. Induced-antibodies showed expanded diversity and de-novo recognition of different Neu5Gc-glycans, including endogenous glycolipids, that was further validated by affinity-purified anti-Neu5Gc antibodies from patients' sera. These findings strongly suggest that ATG-induced anti-Neu5Gc IgGs represent a secondary exposure to this dietary carbohydrate-antigen in humans, with immune memory. Given their modified recognition patterns, ATG-evoked anti-Neu5Gc antibodies could potentially mediate biological effects different from pre-existing antibodies. PMID- 29348822 TI - The localization of pre mRNA splicing factor PRPF38B is a novel prognostic biomarker that may predict survival benefit of trastuzumab in patients with breast cancer overexpressing HER2. AB - Cancer biomarkers that can define disease status and provide a prognostic insight are essential for the effective management of patients with breast cancer (BC). The prevalence, clinicopathological and prognostic significance of PRPF38B expression in a consecutive series of 1650 patients with primary invasive breast carcinoma were examined using immunohistochemistry. Furthermore, the relationship(s) between clinical outcome and PRPF38B expression was explored in 627 patients with ER-negative (oestrogen receptor) disease, and 322 patients with HER2-overexpressing disease. Membranous expression of PRPF38B was observed in 148/1388 (10.7%) cases and was significantly associated with aggressive clinicopathological features, including high grade, high mitotic index, pleomorphism, invasive ductal carcinoma of no specific type (IDC-NST), ER negative, HER2-overexpression and p53 mutational status (all p < 0.01). In patients with ER-negative disease receiving chemotherapy, nuclear expression of PRPF38B was significantly associated with a reduced risk of relapse (p = 0.0004), whereas membranous PRPF38B expression was significantly associated with increased risk of relapse (p = 0.004; respectively) at a 5 year follow-up. When patients were stratified according to ER-negative/HER2-positive status, membranous PRPF38B expression was associated with a higher risk of relapse in those patients that did not receive trastuzumab therapy (p = 0.02), whereas in those patients with ER negative/HER2-positive disease that received trastuzumab adjuvant therapy, membranous PRPF38B expression associated with a lower risk of relapse (p = 0.00018). Nuclear expression of PRPF38B is a good prognostic indicator in both ER negative patients and ER-negative/HER2-positive BC (breast cancer) patients, whereas membranous localisation of PRPF38B is a poor prognostic biomarker that predicts survival benefit from trastuzumab therapy in patients with ER negative/HER2-overexpressing BC. PMID- 29348823 TI - Prevalence of pathogenic germline variants detected by multigene sequencing in unselected Japanese patients with ovarian cancer. AB - Pathogenic germline BRCA1, BRCA2 (BRCA1/2), and several other gene variants predispose women to primary ovarian, fallopian tube, and peritoneal carcinoma (OC), although variant frequency and relevance information is scarce in Japanese women with OC. Using targeted panel sequencing, we screened 230 unselected Japanese women with OC from our hospital-based cohort for pathogenic germline variants in 75 or 79 OC-associated genes. Pathogenic variants of 11 genes were identified in 41 (17.8%) women: 19 (8.3%; BRCA1), 8 (3.5%; BRCA2), 6 (2.6%; mismatch repair genes), 3 (1.3%; RAD51D), 2 (0.9%; ATM), 1 (0.4%; MRE11A), 1 (FANCC), and 1 (GABRA6). Carriers of BRCA1/2 or any other tested gene pathogenic variants were more likely to be diagnosed younger, have first or second-degree relatives with OC, and have OC classified as high-grade serous carcinoma (HGSC). After adjustment for these variables, all 3 features were independent predictive factors for pathogenic variants in any tested genes whereas only the latter two remained for variants in BRCA1/2. Our data indicate similar variant prevalence in Japanese patients with OC and other ethnic groups and suggest that HGSC and OC family history may facilitate genetic predisposition prediction in Japanese patients with OC and referring high-risk patients for genetic counseling and testing. PMID- 29348824 TI - KCa3.1 channel inhibition leads to an ICAM-1 dependent increase of cell-cell adhesion between A549 lung cancer and HMEC-1 endothelial cells. AB - Early metastasis leads to poor prognosis of lung cancer patients, whose 5-year survival rate is only 15%. We could recently show that the Ca2+ sensitive K+ channel KCa3.1 promotes aggressive behavior of non-small cell lung cancer (NSCLC) cells and that it can serve as a prognostic marker in NSCLC. Since NSCLC patients die of metastases, we investigated whether KCa3.1 channels contribute to poor patient prognosis by regulating distinct steps of the metastatic cascade. We investigated the extravasation of NSCLC cells and focused on their adhesion to endothelial cells and on transendothelial migration. We quantified the adhesion forces between NSCLC cells and endothelial cells by applying single cell force spectroscopy, and we monitored transendothelial migration using live-cell imaging. Inhibition of KCa3.1 channels with senicapoc or KCa3.1 silencing increases the adhesion force of A549 lung cancer cells to human microvascular endothelial cells (HMEC-1). Western blotting, immunofluorescence staining and biotinylation assays indicate that the elevated adhesion force is due to increased expression of ICAM-1 in both cell lines when KCa3.1 channels are downregulated. Consistent with this interpretation, an anti-ICAM-1 blocking antibody abolishes the KCa3.1-dependent increase in adhesion. Senicapoc inhibits transendothelial migration of A549 cells by 50%. Selectively silencing KCa3.1 channels in either NSCLC or endothelial cells reveals that transendothelial migration depends predominantly on endothelial KCa3.1 channels. In conclusion, our findings disclose a novel function of KCa3.1 channels in cancer. KCa3.1 channels regulate ICAM-1 dependent cell-cell adhesion between endothelial and cancer cells that affects the transmigration step of the metastatic cascade. PMID- 29348825 TI - A novel anti-CD146 antibody specifically targets cancer cells by internalizing the molecule. AB - CD146 is an adhesion molecule present on many tumors (melanoma, kidney, pancreas, breast, ...). In addition, it has been shown to be expressed on vascular endothelial and smooth muscle cells. Generating an antibody able to specifically recognize CD146 in cancer cells (designated as tumor CD146), but not in normal cells, would thus be of major interest for targeting tumor CD146 without affecting the vascular system. We thus generated antibodies against the extracellular domain of the molecule produced in cancer cells and selected an antibody that specifically recognizes tumor CD146. This antibody (TsCD146 mAb) was able to detect CD146-positive tumors in human biopsies and in vivo, by PET imaging, in a murine xenograft model. In addition, TsCD146 mAb antibody was able to specifically detect CD146-positive cancer microparticles in the plasma of patients. TsCD146 mAb displayed also therapeutic effects since it was able to reduce the growth of human CD146-positive cancer cells xenografted in nude mice. This effect was due to a decrease in the proliferation and an increase in the apoptosis of CD146-positive cancer cells after TsCD146-mediated internalization of the cell surface CD146. Thus, TsCD146 mAb could be of major interest for diagnostic and therapeutic strategies against CD146-positive tumors in a context of personalized medicine. PMID- 29348826 TI - Interaction of macrophages with apoptotic cells inhibits transdifferentiation and invasion of lung fibroblasts. AB - The invasion of activated fibroblasts is a key mechanism of tissue fibrosis pathology. The recognition and uptake of apoptotic cells can induce the anti fibrogenic programming of macrophages. We demonstrate that after interacting with apoptotic cells, macrophages secrete bioactive molecules that antagonize TGF beta1-induced increases in myofibroblast (fibroproliferative) phenotypic markers and reduce the enhanced invasive capacity of TGF-beta1- or EGF-treated mouse lung fibroblasts (MLg). Furthermore, numerous treatment strategies prevented the anti fibrotic effects of conditioned media, including transfection of macrophages with COX-2 or RhoA siRNAs or treatment of MLg cells with receptor antagonists for prostaglandin E2 (PGE2), PGD2, or hepatocyte growth factor (HGF). Additionally, administration of apoptotic cells in vivo inhibited the bleomycin-mediated invasive capacity of primary fibroblasts, as well as adhesion and extracellular matrix protein mRNA expression. These data suggest that the anti-fibrogenic programming of macrophages by apoptotic cells can be used as a novel tool to control the progressive fibrotic reaction. PMID- 29348827 TI - Molecular-genetic profiling and high-throughput in vitro drug screening in NUT midline carcinoma-an aggressive and fatal disease. AB - NUT midline carcinoma (NMC) is a rare and aggressive cancer, with survival typically less than seven months, that can arise in people of any age. Genetically, NMC is defined by the chromosomal fusion of NUTM1 with a chromatin binding partner, typically the bromodomain-containing protein BRD4. However, little is known about other genetic aberrations in this disease. In this study, we used a unique panel of cell lines to describe the molecular-genetic features of NMC. Next-generation sequencing identified a recurring high-impact mutation in the DNA-helicase gene RECQL5 in 75% of lines studied, and biological signals from mutation-signature and network analyses consistent with a general failure in DNA repair. A high-throughput drug screen confirmed that microtubule inhibitors, topoisomerase inhibitors and anthracyclines are highly cytotoxic in the majority of NMC lines, and that cell lines expressing the BRD4-NUTM1 (exon11:exon2) variant are an order of magnitude more responsive to bromodomain inhibitors (iBETs) on average than those with other BRD4-NUTM1 translocation variants. We also identified a highly significant correlation between iBET and aurora kinase inhibitor efficacy in this study. Integration of exome sequencing, transcriptome, and drug sensitivity profiles suggested that aberrant activity of the nuclear receptor co-activator NCOA3 may correlate with poor response to iBETs. In conclusion, our data emphasize the heterogeneity of NMC and highlights genetic aberrations that could be explored to improve therapeutic strategies. The novel finding of a recurring RECQL5 mutation, together with recent reports of chromoplexy in this disease, suggests that DNA-repair pathways are likely to play a central role in NMC tumorigenesis. PMID- 29348828 TI - Dose escalation by image-guided intensity-modulated radiotherapy leads to an increase in pain relief for spinal metastases: a comparison study with a regimen of 30 Gy in 10 fractions. AB - Purpose: Under the existing condition that the optimum radiotherapy regimen for spinal metastases is controversial, this study investigates the benefits of dose escalation by image-guided intensity-modulated radiotherapy (IG-IMRT) with 60-66 Gy in 20-30 fractions for spinal metastases. Results: In the dose-escalation group, each D50 of planning gross tumor volume (PGTV) was above 60 Gy and each Dmax of spinal cord planning organ at risk volume (PRV) was below 48 Gy. The median biological effective dose (BED) of Dmax of spinal cord was lower in the dose-escalation group compared with that in the 30-Gy group (69.70 Gy vs. 83.16 Gy, p < 0.001). After one month and three months of the radiotherapy, pain responses were better in the dose-escalation group than those in the 30-Gy group (p = 0.005 and p = 0.024), and the complete pain relief rates were respectively 73.69% and 34.29% (p = 0.006), 73.69% and 41.38% (p = 0.028) in two compared groups. In the dose-escalation group, there is a trend of a longer duration of pain relief, a longer overall survival and a lower incidence of acute radiation toxicities. No late radiation toxicities were observed in both groups. Materials and Methods: Dosimetric parameters and clinical outcomes, including pain response, duration of pain relief, radiation toxicities and overall survival, were compared among twenty-five metastatic spinal lesions irradiated with the dose-escalation regimen and among forty-four lesions treated with the 30-Gy regimen. Conclusions: Conventionally-fractionated IG-IMRT for spinal metastases could escalate dose to the vertebral lesions while sparing the spinal cord, achieving a better pain relief without increasing radiation complications. PMID- 29348829 TI - Roflumilast restores cAMP/PKA/CREB signaling axis for FtMt-mediated tumor inhibition of ovarian cancer. AB - The abrogation of cAMP generation by overexpression of PDE isoforms promotes the inflammatory pathology, and the PDE inhibitors have showed the potential anti inflammation effects in clinical. However, the function of PDE inhibitors in cancer treatment remains unclear. We here investigated the role of PDE4 inhibitor Roflumilast in the treatment of ovarian cancer. We found that Roflumilast could effectively inhibit the proliferation, and induce apoptosis and cell cycle arrest in two ovarian cancer cell lines OVCAR3 and SKOV3. Meanwhile, the cAMP/PKA/CREB signals was activated by Roflumilast, which was accompanied by the up-regulation of mitochondrial ferritin (FtMt) level. Interestingly, forced expression of FtMt in ovarian cancer enhanced the apoptosis and inhibited tumor growth and the PKA inhibitor H89 and knockdown of CREB significantly repressed the expression of FtMt to restore the tumor proliferation and inhibit apoptosis. In addition, we found that Roflumilast-induced phosphorylated CREB directly promoted transcription of FtMt, indicating that Roflumilast up-regulated the expression of FtMt in ovarian cancer via cAMP/PKA/CREB signals. The anti-tumor role of Roflumilast in vivo was also demonstrated, the treatment of roflumilast effectively inhibited tumor proliferation and elevated the FtMt expression to restrict the tumor growth via the activation of cAMP/PKA/CREB signals in ovarian cancer. PMID- 29348830 TI - Inactivation/deficiency of DHODH induces cell cycle arrest and programed cell death in melanoma. AB - Malignant melanoma (MM) is one of the most malignant tumors and has a very poor prognosis. However, there are no effective drugs to treat this disease. As a kind of iron flavin dependent enzyme, dihydroorotate dehydrogenase (DHODH, EC 1.3.3.1) is the fourth and a key enzyme in the de novo biosynthesis of pyrimidines. Herein, we found that DHODH inactivation/deficiency inhibited melanoma cell proliferation, induced cell cycle arrest at S phase and lead to autophagy in human melanoma cells. Meanwhile, leflunomide treatment induced cell apoptosis and deficiency of DHODH sensitized cells to drug-induced apoptosis in BCL-2 deficient melanoma cells, while not in BCL-2 abundant melanoma cells. Then we found that BCL-2 could rescue apoptosis induced by DHODH inactivation/deficiency. Moreover, BCL-2 also showed to promote cell cycle arrest and to inhibit autophagy induced by leflunomide. To explore the mechanisms underlying autophagy induced by DHODH inhibition, we found that AMPK-Ulk1 axis was activated in this process. Besides, JNK was phosphorylated and activated to phosphorylate BCL-2, which abrogated the interaction between BCL-2 and Beclin1 and then abolished autophagy. Our findings provided evidences for the potential of DHODH used as a drug target for melanoma treatment. PMID- 29348831 TI - Aberrant expression of miR-21, miR-376c and miR-145 and their target host genes in Merkel cell polyomavirus-positive non-small cell lung cancer. AB - Merkel Cell Polyoma Virus (MCPyV) infection has been associated with non-small cell lung cancer (NSCLC). Viruses can manipulate cellular miRNAs or have a profound impact on cellular miRNA expression to control host regulatory pathways. In this study, we evaluated the expression profiles of cancer-associated and virally affected host microRNAs miR-21, miR-145, miR-146a, miR-155, miR-302c, miR 367 and miR-376c in a series of NSCLC tissue samples as well as in samples from "healthy" sites, distant from the tumour region that were either positive or negative for MCPyV DNA. miR-21 and miR-376c were significantly upregulated whereas miR-145 was significantly downregulated in the MCPyV+ve samples compared to the MCPyV-ve tumour samples. Overall, miR-21 and miR-376c expression was higher in tumour compared to healthy tissue samples. No association was observed between the miR-155, miR-146a, miR-302c and miR-367 levels and the presence of MCPyV. The expression of miR-21 target genes (Pten, Bcl-2, Daxx, Pkr, Timp3), miR 376c (Grb2, Alk7, Mmp9) and miR-145 (Oct-4, Sox2, Fascin1) and their associated pathways (Braf, Akt-1, Akt-2, Bax, Hif1a, p53) was altered between MCPyV+ve tumor samples and their corresponding controls. These results show a novel association between miR-21, miR-376c and miR-145 and their host target genes with the presence of MCPyV, suggesting a mechanism of virus-specific microRNA signature in NSCLC. PMID- 29348832 TI - Clinical and histological features of primary testicular diffuse large B-cell lymphoma: a single center experience in China. AB - Primary testicular lymphoma (PTL) is a rare and aggressive form of extranodal lymphoma. Approximately 80-98% of PTLs are diffuse large B-cell lymphoma (PT DLBCL). The prognosis of DLBCL patients has improved with the addition of rituximab to systemic chemotherapy, but outcomes of PT-DLBCL remain poor. This may be explained by the high rate of relapse in the central nervous system (CNS) and contralateral testis. We analyzed 1,132 newly diagnosed DLBCL patients (37 with PT-DLBCL) who were treated at our hospital between January 2009 and December 2014. Twenty-five patients finished follow-up. We analyzed clinical characteristics, response to chemotherapy, overall survival, and relapse in the CNS and contralateral testis. All patients underwent orchiectomy. The median age was 60 (range: 43-82) years. Eleven patients had stage III/IV disease. Five patients experienced CNS relapse, and three experienced relapse in the contralateral testis. Median overall survival (OS) was not reached at the time of reporting. The 3-year OS rate was 57%. None of the nine patients who received radiotherapy to the contralateral testis experienced relapse in that location. Intrathecal prophylaxis did not reduce the risk of CNS relapse. All five patients who experienced CNS relapse had the germinal center B-cell-like subtype of DLBCL. PMID- 29348833 TI - Gold nanoparticles as a potent radiosensitizer in neutron therapy. AB - The purpose of this study was to investigate the potential of gold nanoparticles as radiosensitizer for use in neutron therapy against hepatocellular carcinoma. The hepatocellular carcinoma cells lines Huh7 and HepG2 were irradiated with gamma and neutron radiation in the presence or absence of gold nanoparticles. Effects were evaluated by transmission electron microscopy, cell survival, cell cycle, DNA damage, migration, and invasiveness. Gold nanoparticles significantly enhanced the radiosensitivity of Huh7 and HepG2 cells to gamma-rays by 1.41- and 1.16-fold, respectively, and by 1.80- and 1.35-fold to neutron radiation, which has high linear energy transfer. Accordingly, exposure to neutron radiation in the presence of gold nanoparticles induced cell cycle arrest, DNA damage, and cell death to a significantly higher extent, and suppressed cell migration and invasiveness more robustly. These effects are presumably due to the ability of gold nanoparticles to amplify the effective dose from neutron radiation more efficiently. The data suggest that gold nanoparticles may be clinically useful in combination therapy against hepatocellular carcinoma by enhancing the toxicity of radiation with high linear energy transfer. PMID- 29348835 TI - Simultaneous quantification of DNA damage and mitochondrial copy number by long run DNA-damage quantification (LORD-Q). AB - DNA damage and changes in the mitochondrial DNA content have been implicated in ageing and cancer development. To prevent genomic instability and tumorigenesis, cells must maintain the integrity of their nuclear and mitochondrial DNA. Advances in the research of DNA damage protection and genomic stability, however, also depend on the availability of techniques that can reliably quantify alterations of mitochondrial DNA copy numbers and DNA lesions in an accurate high throughput manner. Unfortunately, no such method has been established yet. Here, we describe the high-sensitivity long-run real-time PCR technique for DNA-damage quantification (LORD-Q) and its suitability to simultaneously measure DNA damage rates and mitochondrial DNA copy numbers in cultured cells and tissue samples. Using the LORD-Q multiplex assay, we exemplarily show that the mitochondrial DNA content does not directly affect DNA damage susceptibility, but influences the efficacy of certain anticancer drugs. Hence, LORD-Q provides a fast and precise method to assess DNA lesions, DNA repair and mtDNA replication as well as their role in a variety of pathological settings. PMID- 29348834 TI - Activity strengths of cortical glutamatergic and GABAergic neurons are correlated with transgenerational inheritance of learning ability. AB - The capabilities of learning and memory in parents are presumably transmitted to their offsprings, in which genetic codes and epigenetic regulations are thought as molecular bases. As neural plasticity occurs during memory formation as cellular mechanism, we aim to examine the correlation of activity strengths at cortical glutamatergic and GABAergic neurons to the transgenerational inheritance of learning ability. In a mouse model of associative learning, paired whisker and odor stimulations led to odorant-induced whisker motion, whose onset appeared fast (high learning efficiency, HLE) or slow (low learning efficiency, LLE). HLE male and female mice, HLE female and LLE male mice as well as HLE male and LLE female mice were cross-mated to have their first generation of offsprings, filials (F1). The onset of odorant-induced whisker motion appeared a sequence of high-to-low efficiency in three groups of F1 mice that were from HLE male and female mice, HLE female and LLE male mice as well as HLE male and LLE female mice. Activities related to glutamatergic neurons in barrel cortices appeared a sequence of high-to-low strength in these F1 mice from HLE male and female mice, HLE female and LLE male mice as well as HLE male and LLE female mice. Activities related to GABAergic neurons in barrel cortices appeared a sequence of low-to high strength in these F1 mice from HLE male and female mice, HLE female and LLE male mice as well as HLE male and LLE female mice. Neuronal activity strength was linearly correlated to learning efficiency among three groups. Thus, the coordinated activities at glutamatergic and GABAergic neurons may constitute the cellular basis for the transgenerational inheritance of learning ability. PMID- 29348836 TI - Vitexin confers HSF-1 mediated autophagic cell death by activating JNK and ApoL1 in colorectal carcinoma cells. AB - Heat shock transcription factor-1 (HSF-1) guards the cancerous cells proteome against the alterations in protein homeostasis generated by their hostile tumor microenvironment. Contrasting with the classical induction of heat shock proteins, the pro-oncogenic activities of HSF-1 remains to be explored. Therefore, cancer's fragile proteostatic pathway governed by HSF-1 could be a potential therapeutic target and novel biomarker by natural compounds. Vitexin, a natural flavonoid has been documented as a potent anti-tumor agent on various cell lines. However, in the present study, when human colorectal carcinoma HCT 116 cells were exposed to vitexin, the induction of HSF-1 downstream target proteins, such as heat shock proteins were suppressed. We identified HSF-1 as a potential molecular target of vitexin that interact with DNA-binding domain of HSF-1, which inhibited HSF-1 oligomerization and activation (in silico). Consequently, HSF-1 hyperphosphorylation mediated by JNK operation causes transcriptional inactivation of HSF-1, and supported ROS-mediated autophagy induction. Interestingly, in HSF-1 immunoprecipitated and silenced HCT-116 cells, co-expression of apolipoprotein 1 (ApoL1) and JNK was observed which promoted the caspase independent autophagic cell death accompanied by p62 downregulation and increased LC3-I to LC3-II conversion. Finally, in vivo findings confirmed that vitexin suppressed tumor growth through activation of autophagic cascade in HCT 116 xenograft model. Taken together, our study insights a probable novel association between HSF-1 and ApoL-1 was established in this study, which supports HSF-1 as a potential target of vitexin to improve treatment outcome in colorectal cancer. PMID- 29348837 TI - Combined surgery and radiation improves survival of tonsil squamous cell cancers. AB - Objective: The study evaluated the addition of surgery (S) to radiation (RT) on survival of squamous cell carcinomas (SCC) of tonsillar-fossa (TF) in a modern cohort with similar epidemiology and treatment as current patients. Study Design: Retrospective analysis utilizing Surveillance, Epidemiology, and End Results (SEER) Program data. Results: For all stages combined TF patients who received S+RT had superior OS (p < 0.01) and DSS (p < 0.01). For each stage OS and DSS was superior for S+RT (p < 0.05). In multivariate analysis, HRs for OS were statistically significantly higher for TF patients (stage 2, 3, and 4) receiving RT alone (p < 0.001). Materials and Methods: TF SCC patients treated with either S+RT or RT alone between 2004 and 2011 were examined (n = 6,476). Primary outcome measures included overall survival (OS) and disease specific survival (DSS). Cox proportional hazard ratios (HR) were estimated for patients treated with S+RT compared to RT alone. Conclusions: OS and DSS were superior for all stages combined and for stages 2, 3, and 4 in TF patients who received S+RT compared to RT alone. PMID- 29348838 TI - Single nucleotide polymorphisms in ZNF208 are associated with increased risk for HBV in Chinese people. AB - Single nucleotide polymorphisms (SNPs) in ZNF208 may be associated with susceptibility to Hepatitis B virus (HBV). In the current study, we analyzed the association between ZNF208 SNPs and risk of HBV in 242 HBV patients and 300 healthy subjects from the Xi'an area of Chinese Han Population. Of the five SNPs examined, rs2188971 (OR: 1.36, 95% CI: 1.04-1.76, P = 0.022), rs8103163 (OR: 1.40, 95% CI: 1.08-1.82, P = 0.010) and rs7248488 (OR: 1.38, 95% CI: 1.07-1.79, P = 0.014) were correlated with HBV susceptibility based on Chi-square tests. After the P-values were adjusted by Bonferroni correction, there only rs8103163 (P = 0.050) was slightly with increased HBV risk. Additionally, haplotype Ars2188972Trs2188971Ars8103163Ars7248488 (OR = 1.42; 95% C I, 1.10-1.85; P = 0.008) was found to increase susceptibility of suffering from HBV. These findings suggest that ZNF208 polymorphisms may contribute to the development of HBV. PMID- 29348839 TI - Differences in the expression of long noncoding RNAs at different time points in the PTSD-like syndrome rat hippocampus. AB - The aim of this study was to characterize the expression profiles at different time points in the PTSD-like syndrome rat hippocampus and perform analyses. PTSD rat models were made as reported by Rau, and we collected the hippocampus at different time points. The lncRNAs at different time points were compared by microarray and listed. We used quantitative real-time PCR to confirm the lncRNA profiling expression data. Bioinformatics analysis was performed on EU056364_P1. Compare with control, a total of 948 lncRNAs and 2514 mRNAs were found (fold change > 2.0) among the four time points. Additionally, bioinformatics analysis of EU056364_P1 suggested it might be involved in memory development through the target gene Camk2a.This study revealed different lncRNAs expressed at different time points in PTSD and explored the targets of PTSD. PMID- 29348840 TI - The prevalence of and risk factors for diabetes mellitus and impaired glucose tolerance among Tibetans in China: a cross-sectional study. AB - The prevalence of diabetes mellitus (DM) and impaired glucose tolerance (IGT) has increased worldwide, although their prevalence and determinants among Tibetans are currently unknown. We thus aimed to explore the prevalence of and risk factors for DM and IGT among Tibetans in China. In 2011, 1659 Tibetan adults (aged >= 18 years) from Changdu, China, were recruited to this cross-sectional study. They completed a questionnaire and underwent physical examinations and laboratory testing to assess risk factors for DM and IGT. The age-standardized prevalence of DM and IGT among Tibetans was 6.2% and 19.7%, respectively. A higher annual family income, alcohol consumption, and higher fasting plasma glucose (FPG) level were risk factors for DM, with odds ratio (ORs) and 95% confidence intervals (CIs) of 3.48 (1.43-8.48; P = 0.006) for those with family incomes of > 1600 USD/year, 3.06 (1.31-7.17; P = 0.010) for alcohol consumption, and 13.99 (7.76-25.22; P < 0.001) for FPG level. However, altitude was found to be negatively associated with the risk of DM; compared to individuals living at < 3500 meters, the risk of DM decreased by 65% for those living at 3500-3999 meters (P = 0.034) and by 89% for those living at >= 4000 meters (P = 0.015). Age, FPG levels, and low-density lipoprotein cholesterol levels were significantly associated with IGT among Tibetans aged >= 18 years. These findings suggest that the prevalence of DM in Tibetans may continue to increase in future decades following rapid economic development, and it is crucial to address the management of conventional risk factors for reducing the disease burden of DM among Tibetans. PMID- 29348841 TI - Activation of AMPK by OSU53 protects spinal cord neurons from oxidative stress. AB - The present study tested the potential effect of OSU53, a novel AMPK activator, against hydrogen peroxide (H2O2)-induced spinal cord neuron damages. Treatment with OSU53 attenuated H2O2-induced death and apoptosis of primary murine spinal cord neurons. OSU53 activated AMPK signaling, which is required for its actions in spinal cord neurons. The AMPK inhibitor Compound C or AMPKalpha1 siRNA almost abolished OSU53-mediated neuroprotection against H2O2. On the other hand, sustained-activation of AMPK by introducing the constitutive-active AMPKalpha1 mimicked OSU53's actions, and protected spinal cord neurons from oxidative stress. OSU53 significantly attenuated H2O2-induced reactive oxygen species production, lipid peroxidation and DNA damages in spinal cord neurons. Additionally, OSU53 increased NADPH content and heme oxygenase-1 mRNA expression in H2O2-treated spinal cord neurons. Together, we indicate that targeted activation of AMPK by OSU53 protects spinal cord neurons from oxidative stress. PMID- 29348842 TI - DDEFL1 correlated with Rho GTPases activity in breast cancer. AB - DDEFL1 is related to maintaining a limiting amount of ARF6 in GTP-loaded form by accelerating its GTP hydrolysis activity, which has been implicated in hepatocellular cancer pathogenesis and lung cancer development. We investigated DDEFL1 expression in breast cancer and paired normal breast tissues by immunohistochemistry and found that DDEFL1 expression was significantly associated with tumor size, lymph node metastasis, high content of elastosis and TNM stage but not with menopausal status or age. We detected the mRNA and protein expression of DDEFL1 in breast cancer cell lines by Western blotting and quantitative real-time PCR (qRT-PCR). DDEFL1 was obvious in MDA-MB-435s and MDA MB-231 but very weak in ZR-75-1. Further experiments were conducted to evaluate the effect of DDEFL1 small interfering RNA (siRNA) transfection on the biological behavior of MDA-MB-231. After transfection, the effects of DDEFL1 inhibition on expression of mRNA and protein were also analyzed by Western blotting and qRT PCR. Increased apoptosis and invasive ability, decreased cellular proliferation was found in MDA-MB-231 with successful DDEFL1 siRNA transient transfection (p < 0.05). Western blotting and qRT-PCR results showed that the DDEFL1 inhibition up regulated Caspase-3, Apaf-1, cytochrome c, and Bax expression and down-regulated Bcl-2 expression. The DDEFL1 inhibition also down-regulated the mRNA and protein expression of Rho, CDC42 and Rac1. Our study provided a functional linkage through DDEFL1 with breast cancer biological behaviours by Rho GTPases. Possible implication of our main finding for the DDEFL1 role in breast cancer and the downstream signaling pathways for the treatment of breast cancer. PMID- 29348843 TI - Actein induces autophagy and apoptosis in human bladder cancer by potentiating ROS/JNK and inhibiting AKT pathways. AB - Human bladder cancer is a common genitourinary malignant cancer worldwide. However, new therapeutic strategies are required to overcome its stagnated survival rate. Triterpene glycoside Actein (ACT), extracted from the herb black cohosh, suppresses the growth of human breast cancer cells. Our study attempted to explore the role of ACT in human bladder cancer cell growth and to reveal the underlying molecular mechanisms. We found that ACT significantly impeded the bladder cancer cell proliferation via induction of G2/M cycle arrest. Additionally, ACT administration triggered autophagy and apoptosis in bladder cancer cells, proved by the autophagosome formation, LC3B-II accumulation, improved cleavage of Caspases/poly (ADP-ribose) polymerase (PARP). Furthermore, reduction of reactive oxygen species (ROS) and p-c-Jun N-terminal kinase (JNK) could markedly reverse ACT-induced autophagy and apoptosis. In contrast, AKT and mammalian target of rapamycin (mTOR) were greatly de-phosphorylated by ACT, while suppressing AKT and mTOR activity could enhance the effects of ACT on apoptosis and autophagy induction. In vivo, ACT reduced the tumor growth with little toxicity. Taken together, our findings indicated that ACT suppressed cell proliferation, induced autophagy and apoptosis through promoting ROS/JNK activation, and blunting AKT pathway in human bladder cancer, which indicated that ACT might be an effective candidate against human bladder cancer in future. PMID- 29348844 TI - Trends and variations in mantle cell lymphoma incidence from 1995 to 2013: A comparative study between Texas and National SEER areas. AB - Background: Few studies have assessed mantle cell lymphoma (MCL) incidence trends in the U.S. National Cancer Institute's Surveillance, Epidemiology and End Results (SEER) areas. Previous studies were 5 to 9 years old and MCL incidence in Texas remains unknown. This study updated the temporal trends and variations of MCL incidence in the SEER areas and compared them with counterpart data in Texas. Results: From 1995 to 2013, there were 2, 435 and 5, 193 newly diagnosed MCL patients in Texas and SEER areas. Age-adjusted MCL incidence was 0.91 per 100,000 persons per year in Texas and 1.01 in SEER areas. MCL incidence increased steadily with an annual percent change (APC) of 2.56% in SEER areas and an APC of 2.16% in Texas. In SEER areas, APCs for MCL incidence were significantly different from zero in patients with advanced stage tumor (3.33%), male (2.71%), elderly patients >= 80 years old (4.21%) and non-Hispanic white patients (2.83%) (all P < 0.05). Similar patterns were found in Texas for both incidence rates and APCs. Materials and methods: We identified all adult patients with newly diagnosed MCL in Texas Cancer Registry and SEER databases from 1995 to 2013. Age adjusted incidence rates were calculated and negative binomial regression model was used to assess the factors associated with MCL incidence. Conclusions: MCL incidence rates increased over time in both Texas and SEER areas, with increases being greater in male, non-Hispanic white, and elderly patient >=70 years with advanced stage tumors. Texas has similar MCL incidence trends and disparities as the national SEER areas. PMID- 29348845 TI - Decreased expression of the long non-coding RNA SLC7A11-AS1 predicts poor prognosis and promotes tumor growth in gastric cancer. AB - Many lncRNA and mRNA sense-antisense transcripts have been systematically identified in malignant cells. However, the molecular mechanisms of most lncRNA mRNA pairs in gastric cancer remain largely unknown. We found the gastric cancer associated lncRNA SLC7A11-AS1 and coding transcript mRNA SLC7A11 in human gastric cancer specimens by microarray. SLC7A11-AS1, antisense to SLC7A11, is significantly down-regulated in gastric cancer and could promote tumor growth in vitro and in vivo. The effects of SLC7A11-AS1 depend on the regulation of SLC7A11 via the ASK1-p38MAPK/JNK signaling pathway. These findings suggest that decreased expression of SLC7A11-AS1 contributes to the progression of gastric cancer and may be a novel diagnostic biomarker and effective therapeutic target in gastric cancer patients. PMID- 29348846 TI - ST6GALNAC1 plays important roles in enhancing cancer stem phenotypes of colorectal cancer via the Akt pathway. AB - Colorectal cancer (CRC) is a mortal disease due to treatment resistance, recurrence and distant metastasis. Emerging evidence has revealed that a small sub-population of cancer cells termed cancer stem cells (CSCs)/ cancer-initiating cells (CICs) is endowed with high levels of tumor-initiating ability, self renewal ability and differentiation ability and is responsible for treatment resistance, recurrence and distant metastasis. Eradication of CSCs/CICs is essential to improve current treatments. However, the molecular mechanisms by which CSCs/CICs are maintained are still elusive. In this study, we aimed to determine the molecular mechanisms by which colorectal (CR)-CSCs/CICs in are maintained human primary CRC cells. CR-CSCs/CICs were isolated by sphere-culture and the ALDEFLUOR assay, and transcriptome analysis revealed that the gene ST6 N Acetylgalactosaminide Alpha-2,6-Sialyltransferase 1 (ST6GALNAC1) was expressed at high levels in CR-CSCs/CICs. Overexpression of ST6GALNAC1 enhanced the expression of sialyl-Tn (STn) antigen, which is carried by the CSC marker CD44, and increased the sphere-forming ability and resistance to a chemotherapeutic reagent. The opposite phenomena were observed by gene knockdown using siRNA. Furthermore, the Akt pathway was activated in ST6GANAC1-overexpressed cells, and activation of the pathway was cancelled by gene knockdown of galectin-3. The results indicate that ST6GALNAC1 has a role in the maintenance of CR-CSCs/CICs by activating the Akt pathway in cooperation with galectin-3 and that ST6GalNAC1 (or STn antigen) might be a reasonable molecule for CSC/CIC-targeting therapy. PMID- 29348847 TI - Distinct roles of TRAF6 and TAK1 in the regulation of adipocyte survival, thermogenesis program, and high-fat diet-induced obesity. AB - Chronic low-grade inflammation, adipocyte hypertrophy, and glucose intolerance are common features of obesity and a risk factor for cancer. Tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is an adaptor protein that also possesses a non-conventional E3 ubiquitin ligase activity. In response to receptor-mediated events, TRAF6 activates transforming growth factor-activated kinase 1 (TAK1), which leads to activation of the MAPK and nuclear factor-kappa B (NF-kappaB) signaling pathways. However, the roles of TRAF6 and TAK1 in the regulation of adipocyte function remain less understood. Here, we demonstrate that adipocyte-specific deletion of TAK1, but not TRAF6, in mice reduces the survival of adipocytes and abundance of white adipose tissue (WAT). Adipocyte specific ablation of TAK1, but not TRAF6, increases the expression for markers of beige/brown fat in WAT. Deletion of TAK1 in WAT increases phosphorylation of AMPK, abundance of PGC-1alpha, non-canonical NF-kappaB signaling, markers of M2 macrophages, and diminishes phosphorylation of JNK and canonical NF-kappaB signaling. Levels of TRAF6 and enzymatic activity of TAK1 are increased in WAT of mice fed with high-fat diet (HFD). Our results demonstrate that ablation of TAK1 drastically reduces HFD-induced obesity and improves energy expenditure and glucose metabolism. In contrast, adipocyte-specific ablation of TRAF6 has a minimal effect on HFD-induced obesity. Collectively, our results suggest that even though TRAF6 is an upstream activator of TAK1 in many signaling cascades, inactivation of TAK1, but not TRAF6, regulates adipocyte survival, energy expenditure, and HFD-induced obesity in mice. PMID- 29348848 TI - PD-L1 expression in tumor tissue and peripheral blood of patients with oral squamous cell carcinoma. AB - Background: Immune checkpoints like programmed cell death-1 (PD-1) and its ligand PD-L1 are involved in immune escape mechanisms of solid tumors including oral squamous cell carcinoma (OSCC). Inhibitors of the pathway are successfully used for treating especially advanced disease. However, the physiological relevance of PD-1/PD-L1-signaling in OSCC is insufficiently understood. The aim of the study was to analyze if PD-L1 expression in tumor tissue and peripheral blood samples of OSCC patients is associated with histomorphological tumor parameters and if PD L1 expression in patients is different from controls. Results: OSCC tumor specimens showed a significantly higher PD-L1 expression than oral mucosa controls (p < 0.001; upregulation more than 3-fold). Cross-tabulation revealed an association of increased expression of PD-L1 mRNA in tissue specimens with malignancy (p < 0.001).OSCC cases with higher tumor grade and cases with lymph node metastases (N+) were significantly (p < 0.05) associated with increased PD L1 expression in peripheral blood. Cross-tabulation revealed an significant association with lymph node metastases (N+) (p <= 0.002). Materials and Methods: PD-L1 mRNA expression was analyzed in tumor specimens and corresponding samples of healthy oral mucosa and peripheral blood of 45 OSCC patients and 36 healthy control persons using RT-qPCR analysis. A Mann-Whitney U-test, a cut-off point analysis and a Chi-square test were carried out. Conclusions: PD-L1 expression in OSCC could contribute to the immunosuppressive local tumor microenvironment. Increased malignant behavior (higher tumor grade, positive nodal status) might be associated with PD-L1 mediated systemic immune tolerance. Thus, PD-L1 expression in peripheral blood might be an indicator of the existence of metastatic disease (N+) in OSCC. PMID- 29348849 TI - Reduced levels of N'-methyl-2-pyridone-5-carboxamide and lysophosphatidylcholine 16:0 in the serum of patients with intrahepatic cholangiocarcinoma, and the correlation with recurrence-free survival. AB - We searched for metabolic biomarkers that may predict the prognosis of patients with intrahepatic cholangiocarcinoma (IHCC). To this end, a total of 237 serum samples were obtained from IHCC patients (n = 87) and healthy controls (n = 150), and serum metabolites were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). Two stratified algorithms were used to select the metabolites, the levels of which predicted the prognosis of IHCC patients. We performed MS/MS and multiple-reaction-monitoring MS analyses to identify and quantify the selected metabolites. Continuous biomarker levels were dichotomized based on cutoffs that maximized between-group differences in recurrence-free survival (RFS) in terms of the log-rank test statistic. These RFS differences were analyzed using the log-rank test, and survival curves were drawn with the aid of the Kaplan-Meier method. Six metabolites (l-glutamine, lysophosphatidylcholine [LPC] 16:0, LPC 18:0, N'-methyl-2-pyridone-5-carboxamide [2PY], fibrinopeptide A [FPA] and uric acid) were identified as candidate metabolic biomarkers for predicting the prognosis of IHCC patients. Of these metabolites, levels of l-glutamine, uric acid, LPC 16:0, and LPC 18:0 were significantly lower in the serum from IHCC patients, whereas levels of 2PY and FPA were significantly higher (p < 0.01). 2PY and LPC 16:0 showed significantly better RFS at low level than high level (2PY, median RFS: 15.16 months vs. 5.90 months, p = 0.037; LPC 16:0, median RFS: 15.62 months vs. 9.83 months, p = 0.035). The findings of this study suggest that 2PY and LPC 16:0 identified by metabolome-based approaches may be useful biomarkers for IHCC patients. PMID- 29348850 TI - Novel indazole-based small compounds enhance TRAIL-induced apoptosis by inhibiting the MKK7-TIPRL interaction in hepatocellular carcinoma. AB - Hepatocellular carcinoma (HCC) is one of the most malignant tumors. Although various treatments, such as surgery and chemotherapy, have been developed, a novel alternative therapeutic approach for HCC therapy is urgently needed. Tumor necrosis factor-related apoptosis inducing ligand (TRAIL) is a promising anti cancer agent, but many cancer cells are resistant to TRAIL-induced apoptosis. To help overcome TRAIL resistance in HCC cancer cells, we have identified novel chemical compounds that act as TRAIL sensitizers. We first identified the hit compound, TRT-0002, from a chemical library of 6,000 compounds using a previously developed high-throughput enzyme-linked immunosorbent assay (ELISA) screening system, which was based on the interaction of mitogen-activated protein kinase kinase 7 (MKK7) and TOR signaling pathway regulator-like (TIPRL) proteins and a cell viability assay. To increase the efficacy of this TRAIL sensitizer, we synthesized 280 analogs of TRT-0002 and finally identified two lead compounds (TRT-0029 and TRT-0173). Co-treating cultured Huh7 cells with either TRT-0029 or TRT-0173 and TRAIL resulted in TRAIL-induced apoptosis due to the inhibition of the MKK7-TIPRL interaction and subsequent phosphorylation of MKK7 and c-Jun N terminal kinase (JNK). In vivo, injection of these compounds and TRAIL into HCC xenograft tumors resulted in tumor regression. Taken together, our results suggest that the identified lead compounds serve as TRAIL sensitizers and represent a novel strategy to overcome TRAIL resistance in HCC. PMID- 29348851 TI - Comprehensive analysis of mRNA-lncRNA co-expression profile revealing crucial role of imprinted gene cluster DLK1-MEG3 in chordoma. AB - Chordoma is a rare bone tumor with high recurrence rate, but the mechanism of its development is unclear. Long non-coding RNAs(lncRNAs) are recently revealed to be regulators in a variety of biological processed by targeting on mRNA transcription. Their expression profile and function in chordoma have not been investigated yet. In this study, we firstly performed the comprehensive analysis of the lncRNA and coding genes expression analysis with three chordoma samples and three fetal nucleus pulposus tissues. lncRNA and gene microarrays were used to determine the differentially expressed lncRNAs and protein coding genes. 2786 lncRNAs and 3286 coding genes were significantly up-regulated in chordoma, while 2042 lncRNAs and 1006 coding genes were down-regulated. Pearson correlation analysis was conducted to correlate differentially expressed lncRNAs with protein coding genes, indicating a comprehensive lncRNA-coding gene co-expression network in chordoma. Cis-correlation analysis showed that various transcripts of MEG3 and MEG8 were paired with the most differentially expressed gene DLK1. As located in the same locus, we further analyzed the miRNA clusters in this region, and identified that 61.22% of these miRNAs were significantly down-regulated, implying the silence of the imprinted gene cluster DLK1-MEG3. Overexpression of MEG3 suppressed the proliferation of chordoma cells. Our study pointed out the potential role of lncRNAs in chordoma, presented the lncRNA-coding genes co expression profile, and revealed that imprinted gene cluster DLK1-MEG3 contributes to the pathogenesis of chordoma development. PMID- 29348852 TI - Reduced FBXW7 expression in pancreatic cancer correlates with poor prognosis and chemotherapeutic resistance via accumulation of MCL1. AB - Pancreatic cancer is a highly malignant tumor type with poor outcomes, and elucidation of the mechanisms involved in cancer progression and therapeutic resistance is critical. FBXW7 is a key regulator of tumor malignant potential, and its substrate MCL1 regulates therapeutic resistance in human malignancies. Therefore, determination of the relevance of FBXW7 expression is critical for improving patient outcomes. In this study, we investigated the function and clinical significance of FBXW7 in pancreatic cancer. FBXW7 expression was evaluated by immunohistochemistry in 122 pancreatic cancer tissues. Reduced FBXW7 expression was significantly associated with advanced venous invasion, high MCL1 expression, enhanced Ki-67 expression, and poor prognosis and was an independent poor prognostic factor. Among patients who underwent gemcitabine treatment after surgery, reduced FBXW7 expression was also significantly associated with poor prognosis. Knockdown of FBXW7 in vitro enhanced cell proliferation, and migration, and invasion abilities and promoted gemcitabine and nab-paclitaxel chemoresistance in pancreatic cancer cells. Moreover, FBXW7-knockdown cells showed accumulation of MCL1, and the enhanced chemoresistance observed in FBXW7 knockdown cells was eliminated by MCL1 suppression. These results suggested that FBXW7 was associated with cancer progression and mediated sensitivity to gemcitabine and nab-paclitaxel via MCL1 accumulation in pancreatic cancer. Thus, the FBXW7/MCL1 axis may be a promising therapeutic tool to overcome refractory pancreatic cancer. PMID- 29348853 TI - 3D-cultivation of NSCLC cell lines induce gene expression alterations of key cancer-associated pathways and mimic in-vivo conditions. AB - This work evaluated gene expression differences between a hanging-drop 3D NSCLC model and 2D cell cultures and their in-vivo relevance by comparison to patient derived data from The Cancer Genome Atlas. Gene expression of 2D and 3D cultures for Colo699 and A549 were assessed using Affymetrix HuGene 1.0 ST gene chips. Biostatistical analyses tested for reproducibility, comparability and significant differences in gene expression profiles between cell lines, experiments and culture methods. The analyses revealed a high interassay correlation within specific culture systems proving a high validity. 979 genes were altered in A549 and 1106 in Colo699 cells due to 3D cultivation. The overlap of changed genes between the cell lines was small (149), but the involved pathways in the reactome and GO- analyses showed a high overlap with DNA methylation, cell cycle, SIRT1, PKN1 pathway, DNA repair and oxidative stress as well known cancer-associated representatives. Additional specific GSEA-analyses revealed changes in immunologic and endothelial cell proliferation pathways, whereas hypoxic, EMT and angiogenic pathways were downregulated. Gene enrichment analyses showed 3D induced gene up-regulations in the cell lines 38 to be represented in in-vivo samples of NSCLC patients using data of The Cancer Genome Atlas. Thus, our 3D NSCLC model might provide a tool for early drug development and investigation of microenvironment-associated mechanisms. However, this work also highlights the need for further individualization and model adaption to address remaining challenges. PMID- 29348854 TI - Acid ceramidase and its inhibitors: a de novo drug target and a new class of drugs for killing glioblastoma cancer stem cells with high efficiency. AB - Glioblastoma remains the most common, malignant primary cancer of the central nervous system with a low life expectancy and an overall survival of less than 1.5 years. The treatment options are limited and there is no cure. Moreover, almost all patients develop recurrent tumors, which typically are more aggressive. Therapeutically resistant glioblastoma or glioblastoma stem-like cells (GSCs) are hypothesized to cause this inevitable recurrence. Identifying prognostic biomarkers of glioblastoma will potentially advance knowledge about glioblastoma tumorigenesis and enable discovery of more effective therapies. Proteomic analysis of more than 600 glioblastoma-specific proteins revealed, for the first time, that expression of acid ceramidase (ASAH1) is associated with poor glioblastoma survival. CD133+ GSCs express significantly higher ASAH1 compared to CD133- GSCs and serum-cultured glioblastoma cell lines, such as U87MG. These findings implicate ASAH1 as a plausible independent prognostic marker, providing a target for a therapy tailored toward GSCs. We further demonstrate that ASAH1 inhibition increases cellular ceramide level and induces apoptosis. Strikingly, U87MG cells, and three different patient-derived glioblastoma stem-like cancer cell lines were efficiently killed, through apoptosis, by three different known ASAH1 inhibitors with IC50's ranging from 11 104 MUM. In comparison, the standard glioblastoma chemotherapy agent, temozolomide, had minimal GSC-targeted effects at comparable or even higher concentrations (IC50 > 750 MUM against GSCs). ASAH1 is identified as a de novo glioblastoma drug target, and ASAH1 inhibitors, such as carmofur, are shown to be highly effective and to specifically target glioblastoma GSCs. Carmofur is an ASAH1 inhibitor that crosses the blood-brain barrier, a major bottleneck in glioblastoma treatment. It has been approved in Japan since 1981 for colorectal cancer therapy. Therefore, it is poised for repurposing and translation to glioblastoma clinical trials. PMID- 29348855 TI - Associations between erythropoietin polymorphisms and risk of diabetic microvascular complications. AB - We conducted a meta-analysis to evaluate the relationship between erythropoietin (EPO) polymorphisms and diabetic microvascular complications. We searched the PubMed, Embase, Cochrane library, Web of Science, Wanfang, and Chinese National Knowledge Infrastructure databases for appropriate studies. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to evaluate the associations. Ultimately, eight studies consisting of 2,861 cases and 2,136 controls were identified and included in our meta-analysis. Results with our genotype model indicated an association between rs1617640 polymorphisms and diabetic microvascular complications (TT vs. GG: OR = 1.544, 95% CI = 1.089-2.189, P = 0.015). No clear associations between the rs1617640 and rs507392 polymorphisms and diabetic retinopathy were observed. By contrast, rs551238 polymorphisms were associated with increased diabetic retinopathy risk (allele model: OR = 0.774, 95% CI = 0.658-0.911, P = 0.002; genotype model: AC vs. CC: OR = 0.598, 95% CI = 0.402-0.890, P = 0.011; dominant model: OR = 0.561, 95% CI = 0.385-0.817, P = 0.003; recessive model: OR = 0.791, 95% CI = 0.643-0.973, P = 0.026). These results indicate that EPO polymorphisms are a risk factor for diabetic microvascular complications. PMID- 29348856 TI - Prognostic value of diametrically polarized tumor-associated macrophages in multiple myeloma. AB - Tumor-associated macrophages (TAMs) are correlated with the prognosis of different types of solid tumors and lymphoma, according to many clinical studies. In vitro experiments have demonstrated the roles of these cells in myeloma cell survival, angiogenesis, immunomodulation, drug resistance, and the interaction between malignant myeloma cells and the microenvironment. Here, we investigated the prognostic significance of TAMs in patients with multiple myeloma (MM). We evaluated the polarized functional status of bone marrow infiltrated by TAMs by immunohistochemical staining of CD68, iNOS, and CD163 in 240 patients with MM from January 2009 to December 2014. The overall response rates to chemotherapy were lower in patients with high CD68+ or CD163+ TAM densities than in those with low densities. Kaplan-Meier analysis showed that the progression-free survival (PFS, p = 0.001) and overall survival (OS, p < 0.001) of patients with low CD163+ TAM density were significantly higher than those of patients with high CD163+ TAM density. Furthermore, combined analysis of iNOS+ and CD163+ TAMs (iNOS/CD163 signature) exhibited greater power in predicting patient outcomes for both PFS (p < 0.001) and OS (p < 0.001). Moreover, Cox regression analysis identified iNOS+ and CD163+ TAMs as independent prognostic factors (p = 0.007, p < 0.001, respectively). These factors could be combined with the international staging system (ISS) to generate a predictive nomogram for patient outcomes. Our findings suggest that the mosaic of diametrically polarized TAMs is a novel independent prognostic factor that could be integrated into the evaluation of and therapy for MM. PMID- 29348858 TI - The survival benefit of neoadjuvant chemotherapy and pCR among patients with advanced stage triple negative breast cancer. AB - Triple negative breast cancer (TNBC) is an aggressive subtype that accounts for 15-20% of cases, with a higher incidence of relapse/death. Even with adjuvant chemotherapy, the 5 year distant metastasis-free survival rate remains low. A total of 452 tumor registry patients with TNBC and no evidence of metastatic disease were identified over the period of 1996-2011. The median age and follow up time were 51 (range=21-88) and 3.9 (range=0.14-14) years. Approximately 75% of patients with stage III disease received neoadjuvant chemotherapy (NACT) compared with 47% for stage II. Patients with stage I disease predominantly received adjuvant chemotherapy (ACT). Among those who underwent NACT (n=202), 33% had a pathological complete response (pCR). Overall (OS) and disease-free (DFS) survival were significantly longer among patients achieving pCR (versus residual disease) following NACT (OS: all patients P<0.0001, stage II P<0.0001, stage III P=0.0062; DFS: all patients P<0.0001, stage II P=0.0011, stage III P=0.015). ACT was not associated with improved OS or DFS for stage III disease. Adjustment for age, chemotherapy, health insurance type, lymphovascular invasion, race, radiation, and surgery did not alter our results. These findings suggest that pCR following NACT is associated with improved survival among patients with TNBC, independent of diagnostic stage. PMID- 29348859 TI - The effect of systematic lower-limb rehabilitation training in elderly patients undergoing lumbar fusion surgery: a retrospective study. AB - Objectives: The purpose of this study was to explore the effect of systematic lower-limb rehabilitation training in elderly patients undergoing lumbar fusion surgery due to serious degenerative intervertebral disc diseases. Results: At the 1st week after surgery, clinical rehabilitation effect in intervention group was better regarding lower-limb muscle strength, lower-limb DVT, VAS score, and ODI, as compared with control group (all p < 0.05). During the first two weeks after surgery, satisfaction rate in intervention group was higher than that in control group. However, there was no significant difference at last follow-up after surgery when comparing intervention group to control group. Materials and Methods: We retrospectively collected medical records of elderly patients (aged >= 60 yrs) undergoing lumbar fusion surgery between 01/2013 and 01/2015 in our department. Some of the identified patients randomly underwent postoperative systematic training of lower-limb rehabilitation gymnastics (intervention group, n = 240), the others not (control group, n = 300). During postoperative period, intervention group received lower-limb rehabilitation gymnastics treatment for 3 months, but control group did not. All patients were routinely asked to return hospital for a check in the 1st postoperative week, as well as the 2nd week, the 1st month, and the 3rd month. Clinical outcomes were evaluated by scoring lower limb muscle strength, detecting lower-limb deep venous thrombosis (DVT), visual analogue scale (VAS) score, lumbar JOA score, Oswestry disability index (ODI) questionnaire, and performing satisfaction survey. Conclusions: In early postoperative stage, systematic lower-limb rehabilitation training can effectively speed up the recovery, beneficial to reducing lower-limb DVT and increasing patient satisfaction rate. PMID- 29348857 TI - Influenza vaccination might reduce the risk of ischemic stroke in patients with atrial fibrillation: A population-based cohort study. AB - Purpose: Atrial fibrillation (AF) is associated with the risk of ischemic stroke, regardless of the administration of appropriate antithrombotic prophylaxis. This study investigated whether influenza vaccination is associated with the risk of ischemic stroke, to determine a solution to reduce this risk in patients with AF. Methods: We used data from the Taiwan National Health Insurance Research Database. The study cohort comprised all patients diagnosed as having AF (n = 14 454) before January 1, 2005; these patients were followed until December 31, 2012. The index date was January 1, 2005. A propensity score was derived using a logistic regression model to estimate the effect of vaccination by accounting for covariates that predict receiving the intervention (vaccine). A Cox proportional hazard model was used to calculate the hazard ratios (HRs) of ischemic stroke in vaccinated and unvaccinated patients with AF. Results: We included 6570 patients (2547 [38.77%] with and 4023 [61.23%] without influenza vaccination). The adjusted HRs (aHRs) of ischemic stroke were lower in the vaccinated patients than in the unvaccinated patients (influenza season, noninfluenza season, and all seasons: aHRs = 0.59, 0.50, and 0.55; P < 0.001, P < 0.001, and P < 0.001, respectively). Conclusions: Influenza vaccination might exert a dose-response effect against ischemic stroke in patients with AF who have risk factors for ischemic stroke by reducing the incidence of ischemic stroke, particularly in those aged 65-74 and >=75 y. PMID- 29348860 TI - Silencing ROR1 and ROR2 inhibits invasion and adhesion in an organotypic model of ovarian cancer metastasis. AB - OBJECTIVE: Elevated expression of the ROR1 and ROR2 Wnt receptors has been noted in both the tumour and stromal compartments of ovarian cancer patient tissue samples. In vitro studies have suggested these receptors play a role in ovarian cancer metastasis. However, these previous studies have utilised simple 2D in vitro models to investigate cancer cell growth and migration, which does not allow investigation of stromal involvement in Wnt driven metastasis. AIM: To investigate targeting ROR1 and ROR2 using a primary co-culture 3D model of epithelial ovarian cancer dissemination to the omentum. METHODS: Primary fibroblasts (NOF) and mesothelial (HPMC) cells were isolated from fresh samples of omentum collected from women with benign or non-metastatic conditions and cultured with collagen to produce a organotypic 3D model. Stable shRNA knockdown of ROR1, ROR2 and double ROR1/ROR2 in OVCAR4 cells were plated onto the 3D model to measure adhesion, or using a transwell to measure invasion. Gene expression changes in primary cells upon OVCAR4 interaction was evaluated using indirect transwell co-culture. RESULTS: Double knockdown of ROR1 and ROR2 strongly inhibited cell adhesion (p<0.05) and invasion (P<0.05) to the omentum model. ROR2 was up regulated in primary fibroblasts when cultured with OVCAR4 (P=0.05) and ectopic overexpression of ROR2 in NOFs inhibited cell proliferation (P<0.01) but increased cell migration. CONCLUSION: The combination of ROR1 and ROR2 signalling influences ovarian cancer dissemination to the omentum, however ROR2 may also play a role in stromal activation during metastasis. Therefore, targeting both ROR1 and ROR2 may be a powerful approach to treating ovarian cancer. PMID- 29348861 TI - Primary tumor-associated expression of CXCR4 predicts formation of local and systemic recurrency in head and neck squamous cell carcinoma. AB - Objectives: Despite modern treatment regimens, overall survival in head and neck squamous cell carcinomas (HNSCC) is less than 50% due to local and systemic disease recurrency. The current study aims to identify molecular markers in primary tumor specimens that predict the risk for local and systemic recurrency at the time of initial diagnosis. Methods: The study included clinic-pathological data of 1,057 HNSCC. MMP2/9, TIMP1/2, CXCR4, and CXCL12 immunohistochemistry was done in 150 randomly selected specimens. For statistics, we employed Chi square, Fisher exact, and Student's t-test. Overall survival (OS) was calculated by Kaplan-Meier and log-rank test. Prognostic variables were subsequently evaluated by Cox regression for forward selection. Results: CXCR4 positive specimens demonstrated a significant increased risk for tumor recurrency associated death (rT: HR 10.07; p=0.001 / rN: HR 5.04; p=0.013 / rM: HR 2.49; p=0.029) when compared with their unaltered counterparts. Expression of MMP9, TIMP2, CXCR4, and CXCL12 was significantly increased in distant metastasized patients (p<0.0001) and showed significant cross-correlation. In addition, CXCR4 positivity was associated with an increased risk to die due to enhanced T or N status (T1/2 vs. T3/4: HR 5.78; p=0.017; N0 vs. N+: HR 5.18; p=0.033). Conclusion: CXCR4 positivity in tumor samples at initial diagnosis were associated with reduced overall survival, in particular with respect to increasing T/N status, local and systemic recurrency. PMID- 29348862 TI - Digital gene expression analysis in mice lung with coinfection of influenza and streptococcus pneumoniae. AB - Influenza A virus (IAV) and Streptococcus pneumoniae (SP) are two major upper respiratory tract pathogens that can also cause infection in polarized bronchial epithelial cells to exacerbate disease in coinfected individuals which may result in significant morbidity. However, the underlying molecular mechanism is poorly understood. Here, we employed BALB/c ByJ mice inflected with SP, IAV, IAV followed by SP (IAV+SP) and PBS (Control) as models to survey the global gene expression using digital gene expression (DGE) profiling. We attempt to gain insights into the underlying genetic basis of this synergy at the expression level. Gene expression profiles were obtain using the Illimina/Hisseq sequencing technique, and further analyzed by enrichment analysis of Gene Ontology (GO) and Pathway function. The hematoxylin-eosin (HE) staining revealed different tissue changes in groups during which IAV+SP group showed the most severe cell apoptosis. Compared with Control, a total of 2731, 3221 and 3946 differentially expressed genes (DEGs) were detected in SP, IAV and IAV+SP respectively. Besides, sixty-two GO terms were identified by Gene Ontology functional enrichment analysis, such as cell killing, biological regulation, response to stimulus, signaling, biological adhesion, enzyme regulator activity, receptor regulator activity and translation regulator activity. Pathway significant enrichment analysis indicated the dysregulation of multiple pathways, including apoptosis pathway. Among these, five selected genes were further verified by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). This study shows that infection with SP, IAV or IAV+SP induces apoptosis with different degrees which might provide insights into the molecular mechanisms to facilitate further research. PMID- 29348863 TI - No association between TP53 Arg72Pro polymorphism and ovarian cancer risk: evidence from 10113 subjects. AB - The TP53 gene product is an important regulator of cell growth and a tumor suppressor. The association between TP53 Arg72Pro polymorphism and ovarian cancer risk has been widely investigated, but the results are contradictory. We therefore searched the PubMed, EMBASE and Chinese Biomedical databases for studies on the relation between TP53 Arg72Pro polymorphism and ovarian cancer risk. Our final meta-analysis included 24 published studies with 3271 cases and 6842 controls. Pooled results indicated that there was no significant association between TP53 Arg72Pro polymorphism and ovarian cancer risk [Pro/Pro vs. Arg/Arg: odds ratio (OR) =1.04, 95% confidence interval (CI) = 0.81-1.34; Arg/Pro vs. Arg/Arg: OR = 1.14, 95% CI = 0.96-1.36; recessive: OR = 1.05, 95% CI = 0.90-1.22; dominant: OR = 1.12, 95% CI = 0.94-1.33; and Pro vs. Arg: OR = 1.06, 95% CI=0.93 1.20]. Likewise, stratified analyses failed to reveal a genetic association. Despite some limitations, the present meta-analysis provides statistical evidence indicating a lack of association between TP53 Arg72Pro polymorphism and ovarian cancer risk. PMID- 29348864 TI - The macro-evolutionary events in esophageal squamous cell carcinoma. AB - Understanding the evolutionary processes operative in cancer genome may provide insights into clinical outcome and drug-resistance. However, studies focus on genomic signatures, especially for macro-evolutionary events, in esophageal squamous cell carcinoma (ESCC) are limited. Here, we integrated published genomic sequencing data to investigate underlying evolutionary characteristics in ESCC. We found most of ESCC genomes were polyploidy with high genomic instability. Whole genome doubling that acts as one of mechanisms for polyploidy was predicted as a late event in the majority of ESCC genome. Moreover, loss of heterozygosity events were more likely to occur in chromosomes harboring tumor suppressor genes in ESCC. The 40% of neutral loss of heterozygosity events was not a result of genome doubling, suggesting an alternative mechanism for neutral loss of heterozygosity formation. Importantly, deconstruction of copy number alterations extending to telomere revealed that telomere-bounded copy number alterations play a critical role for amplification/deletion of oncogenes/suppressor genes. For well-known genes SOX2, PIK3CA and TERT, nearly all of their amplifications were telomere bounded, which was further confirmed in a Japanese ESCC cohort. Furthermore, we provide evidence that karyotype evolution was mostly punctuated in ESCC. Collectively, our data reveal the potential biological role of whole genome doubling, neutral loss of heterozygosity and telomere-bounded copy number alterations, and highlight mecro-evolution in ESCC tumorigenesis. PMID- 29348865 TI - Targeting T-cell malignancies using anti-CD4 CAR NK-92 cells. AB - Peripheral T-cell lymphomas (PTCLs) are a group of very aggressive non-Hodgkin's lymphomas (NHLs) with poor prognoses and account for a majority of T-cell malignancies. Overall, the standard of care for patients with T-cell malignancies is poorly established, and there is an urgent clinical need for a new approach. As demonstrated in B-cell malignancies, chimeric antigen receptor (CAR) immunotherapy provides great hope as a curative treatment regimen. Because PTCLs develop from mature T-cells, these NHLs are commonly CD4+, and CD4 is highly and uniformly expressed. Therefore, CD4 is an ideal target for PTCL CAR immunotherapy. To that effect, we created a robust third-generation anti-CD4 CAR construct (CD4CAR) and introduced it into clonal NK cells (NK-92). CD4CAR NK-92 cells specifically and robustly eliminated diverse CD4+ human T-cell leukemia and lymphoma cell lines (KARPAS-299, CCRF-CEM, and HL60) and patient samples ex vivo. Furthermore, CD4CAR NK-92 cells effectively targeted KARPAS-299 cells in vivo that modeled difficult-to-access lymphoma nodules, significantly prolonging survival. In our study, we present novel targeting of CD4 using CAR-modified NK cells, and demonstrate efficacy. Combined, our data support CD4CAR NK cell immunotherapy as a potential new avenue for the treatment of PTCLs and CD4+ T cell malignancies. PMID- 29348866 TI - Protein methyltransferases and demethylases dictate CD8+ T-cell exclusion in squamous cell carcinoma of the head and neck. AB - A subset of patients with recurrent/metastatic squamous cell carcinoma of the head and neck (SCCHN) benefit from pembrolizumab and nivolumab, but the majority of patients do not probably due to lack of activated cytotoxic CD8+ T-cells in their tumor tissues. Herein, we aim to investigate whether specific protein methyltransferases (PMTs) and demethylases (PDMTs) could play any roles in the CD8+ T-cell exclusion process in HPV-negative SCCHN. RNA sequencing data from the TCGA database were interrogated for HPV-negative SCCHN patients using a 10-gene chemokine signature that classifies SCCHN tissues into CD8+ T-cell inflamed and non-CD8+ T-cell inflamed phenotypes. Among 53 PMT/PDMT genes examined in the TCGA HPV-negative SCCHN database, expression levels of 15 PMT/PDMT genes were significantly negatively correlated with the chemokine signature score and CD8 mRNA expression levels. The expression level of each of these 15 PMT/PDMT genes showed significantly negative correlations with immune-active chemokines, as well as HLA class I and APM molecules. siRNA-mediated knockdown of a candidate PMT, SMYD3, led to upregulation of CXCL9, CXCL10, CXCL11 and TAP1 at mRNA and protein levels in HPV-negative SCCHN cell lines. These findings demonstrate that overexpression of some PMTs and PDMTs seems to be related with the non-CD8+ T cell inflamed phenotype and may drive CD8+ T-cell exclusion in HPV-negative SCCHN. This study suggests that chromatin modifiers contribute to CD8+ T-cell exclusion and antigen presentation capacity of HPV-negative SCCHN, supporting that targeting of specific PMTs and/or PDMTs could enhance CD8+ T-cell infiltration and increase the proportion of patients that may benefit from immunotherapy. PMID- 29348867 TI - Pleural MAC30 as a prognostic marker in NSCLC with malignant pleural effusion. AB - Over-expressed meningioma-associate protein (MAC30) in tissues was associated with malignant tumor differentiation, metastasis and poor prognosis. However, the attention of MAC30 in pleural effusion from lung tumor is insufficient. Our retrospective study was prepared to explore the clinical values on diagnosis and prognosis of MAC30 from malignant pleural effusion (MPE) in non-small cell lung cancer (NSCLC). Levels of MAC30 were confirmed in MPE from 48 NSCLC patients and in benign pleural effusion (BPE) from 45 controls via enzyme-linked immunosorbent assay (ELISA). The association of MAC30 in MPE with clinical significance was further determined. We found that the levels of MAC30 in MPE were obviously higher than those in BPE (p < 0.05). Moreover, with a cutoff point (17.5 ng/ml), we confirmed the sensitivity and specificity of MAC30 for MPE were 82.7% and 85.3% using ROC curve analysis. Indeed, longer overall survival (OS) was present in NSCLC patients with low MAC30 expression in MPE. Multivariate analysis explicated that elevated MAC30 in MPE was an independent prognostic factor for shorter OS of NSCLC. Our data suggests that MAC30 in pleural effusion could be a potential prognostic marker in NSCLC with MPE. PMID- 29348868 TI - Luminal-like HER2-negative stage IA breast cancer: a multicenter retrospective study on long-term outcome with propensity score analysis. AB - The benefit of adding chemotherapy (CT) to adjuvant hormone therapy (HT) in stage IA luminal-like HER2-negative breast cancer (BC) is unclear. We retrospectively evaluated predictive factors and clinical outcome of 1,222 patients from 4 oncologic centers. Three hundred and eighty patients received CT and HT (CT cohort) and 842 received HT alone (HT-cohort). Disease-free survival (DFS) and overall survival (OS) were evaluated with univariate and multivariate analyses. We also applied the propensity score methodology. Compared with the HT-cohort, patients in the CT-cohort were more likely to be younger, have larger tumors of a higher histological grade that were Ki67-positive, and lower estrogen and progesterone receptor expression. At univariate analysis, a higher histological grade and Ki67 were significantly associated to a lower DFS. At multivariable analysis, only histological grade was predictive of DFS. The CT-cohort had a worse outcome than the HT-cohort in terms of DFS and OS, but differences disappeared when matched according to propensity score. In summary, patients with stage IA luminal-like BC had an excellent prognosis, however relapse and mortality were higher in the CT-cohort than in the HT-cohort. Longer use of adjuvant HT or other therapeutic strategies may be needed to improve outcome. PMID- 29348869 TI - Role of the N-terminal lid in regulating the interaction of phosphorylated MDMX with p53. AB - Murine double minute 4 protein (MDMX) is crucial for the regulation of the tumor suppressor protein p53. Phosphorylation of the N-terminal domain of MDMX is thought to affect its binding with the transactivation domain of p53, thus playing a role in p53 regulation. In this study, the effects of MDMX phosphorylation on the binding of p53 were investigated using molecular dynamics simulations. It is shown that in addition to the previously proposed mechanism in which phosphorylated Y99 of MDMX inhibits p53 binding through steric clash with P27 of p53, the N-terminal lid of MDMX also appears to play an important role in regulating the phosphorylation-dependent interactions between MDMX and p53. In the proposed mechanism, phosphorylated Y99 aids in pulling the lid into the p53 binding pocket, thus inhibiting the binding between MDMX and p53. Rebinding of p53 appears to be facilitated by the subsequent phosphorylation of Y55, which draws the lid away from the binding pocket by electrostatic attraction of the lid's positively charged N-terminus. The ability to target these mechanisms for the proper regulation of p53 could have important implications for understanding cancer biology and for drug development. PMID- 29348870 TI - Nepsilon-carboxymethyl-lysine promotes calcium deposition in VSMCs via intracellular oxidative stress-induced PDK4 activation and alters glucose metabolism. AB - Diabetes and vascular calcification are intrinsically linked. We previously reported that advanced glycation end products (AGEs) accelerate calcium deposition in vascular smooth muscle cells (VSMCs) via excessive oxidative stress. However, the underlying mechanism remains poorly understood. Pyruvate dehydrogenase kinase 4 (PDK4) is an important mitochondrial matrix enzyme in cellular energy metabolism. Since hyperactivation of PDK4 has been reported in calcified vessels and in patients with diabetes mellitus, inhibition of PDK4 expression may be a strategy for the prevention of diabetic vascular calcification. In this study, we used a rat VSMC model to investigate the role of PDK4 in diabetic vascular calcification and further explore the underlying mechanisms. We observed that Nepsilon-carboxymethyl-lysine (CML), which is a major immunogen of AGEs, accelerated calcium deposition in VSMCs through PDK4 activation. An elevated level of reactive oxygen species (ROS) acted as a signal transduction intermediate to increase PDK4 expression. Either inhibition of PDK4 expression or RAGE (receptor for AGEs) blockade attenuated CML-induced VSMC calcification, as shown by decreased alkaline phosphatase (ALP) activity and runt related transcription factor 2 (RUNX2) expression. Glucose consumption and lactate production were increased during CML-induced VSMC calcification. Importantly, CML accelerates glycolysis in VSMCs via a PDK4-dependent pathway. In conclusion, this study demonstrates a novel mechanism by which CML promotes VSMC calcification via PDK4 activation and alters glucose metabolism in VSMCs. PMID- 29348871 TI - Radiation therapy for stage IVA uterine cervical cancer: treatment outcomes including prognostic factors and risk of vesicovaginal and rectovaginal fistulas. AB - Purpose: To evaluate the safety and efficacy of radiation therapy for stage IVA uterine cervical cancer and to identify an optimal radiation regimen. Results: Seventeen of the 28 patients developed recurrence after radiation therapy (local recurrence in 10 and distant metastasis in 12). The local control and distant metastasis-free rates at 3 years in all patients were 61% and 49%, respectively. Fourteen patients died after radiation therapy, and all but 2 died of tumor progression. The disease-free, cause-specific, and overall survival rates at 3 years in all patients were 32%, 49%, and 45%, respectively, and the estimated median survival time was 32 months. Tumor size (P = 0.007) and involvement in the lower third of vagina (P = 0.006) were significant prognostic factors for local control. Older age (P = 0.018) and performance status (P = 0.020) were significant prognostic factors for distant metastasis. The presence of hydronephrosis was the sole significant prognostic factor for survival (P = 0.026). Only 2 patients developed grade 3 late toxicities (vesicovaginal fistula and radiation proctitis, respectively). Materials and Methods: Twenty-eight patients with stage IVA uterine cervical cancer received radiation therapy. All patients initially received external pelvic irradiation at a median dose of 50.4 Gy in 28 fractions. Twenty patients also received high-dose-rate intracavitary brachytherapy at a median dose of 22 Gy in 4 fractions. These fraction sizes were lower than conventional sizes. The total median dose for all 28 patients was 68.7 Gy. Conclusions: Radiation therapy is safe and effective for treatment of stage IVA uterine cervical cancer. The reduced radiation dose per fraction may contribute to the prevention of vesicovaginal fistula formation. PMID- 29348872 TI - Gene expression profiling reveals U1 snRNA regulates cancer gene expression. AB - U1 small nuclear RNA (U1 snRNA), as one of the most abundant ncRNAs in human cells, plays an important role in splicing of pre-mRNAs. Compared to previous studies which have focused on the primary function of U1 snRNA and the neurodegenerative diseases caused by abnormalities of U1 snRNA, this study is to investigate how U1 snRNA over-expression affects the expression of mammal genes on a genome-wide scale. By comparing the gene expression profiles of U1 snRNA over-expressed cells with those of their controls using microarray experiments, 916 genes or loci were identified significantly Differentially Expressed (DE). These 595 up-regulated DE genes and 321 down-regulated DE genes were analyzed using annotations from GO categories and pathways from the KEGG database. As a result, three of 12 enriched pathways were well-known cancer pathways, while the other nine pathways were associated to cancers in previous studies. The further analysis of 73 genes involved in 12 pathways suggested that U1 snRNA could regulate cancer gene expression. The microarray data under the GEO Series accession number GSE84304 is available in the NCBI GEO database. PMID- 29348873 TI - Impaired epidermal Langerhans cell maturation in TGFbeta-inducible early gene 1 (TIEG1) knockout mice. AB - TGF-beta-inducible early gene 1 (TIEG1), also known as Kruppel-like factor 10 (Klf10), represents a major downstream transcription factor of transforming growth factor-beta1 (TGF-beta1) signaling. Epidermal Langerhans cells (LCs), a unique subpopulation of dendritic cells (DC), essentially mediates immune surveillance and tolerance. TGF-beta1 plays a pivotal role in LC maintenance and function after birth, although the underpinning mechanisms remain elusive. Here, we hypothesized that TIEG1 might be involved in TGF-beta1-mediated LC homeostasis and function. Utilizing TIEG1 null mice, we discovered that TIEG1 deficiency did not alter LC homeostasis at the steady state and LC repopulation at inflamed state, as well as their antigen-uptake capacity, but significantly impaired their maturation ability, which was opposite to the fact that loss of TGF-beta1 induced spontaneous LC maturation. Moreover, the ablation of TIEG1 enhanced skin contact hypersensitivity response. Our results suggested that TIEG1 is not a key molecule involved in TGF-beta1-mediated homeostasis, while TIEG1-related signaling pathways regulate LC maturation and their function. PMID- 29348874 TI - Value of CT-MRI fusion in iodine-125 brachytherapy for high-grade glioma. AB - Purposes: To develop a fast, accurate and robust method of fusing Computed Tomography (CT) with pre-operative Magnetic Resonance Imaging (MRI) and evaluate the impact of using the fused data on the implantation of Iodine-125 (125I) seeds for brachytherapy of high-grade gliomas (HGG). Methods: A study was performed on a cohort of 10 consecutive patients with HGG were treated by 125I brachytherapy with CT-MRI fusion image guided (CMGB), and 10 patients treated with CT alone guided (CGB). Statistical analysis was performed to compare (1) the planning target volume, (2) the accuracy of location of catheters, (3) the target volume covered by 150% prescribe dose (V150), (4) the target volume covered by 200% prescribe dose (V200), and (5) the conformity index (CI) with or without fused data. Results: The median planning target volume was 50.1 cm3 in CGB, and 56.25 cm3 in CMGB with significant difference (p = 0.005). The accuracy of catheter insertion was 94.4% with CMGB and 78.9% with CGB. The median V150 and V200 was 45.32% vs 64.24% and 32.81% vs 53.17% in CGB and CMGB, respectively. There was significant difference for CI (83.5% vs. 74.5%, p < 0.05) in the two groups for the post-operative verification. Conclusions: The proposed MRI-CT fusion method enables a quantitative assessment of impact on HGG brachytherapy. The additional information obtained from the fused images can be utilized for more accurate delineation of lesion boundaries and targeting of catheters. Experimental results show that the fusion algorithm is robust and reliable in clinical practice. PMID- 29348875 TI - Radiosensitization of the PI3K inhibitor HS-173 through reduction of DNA damage repair in pancreatic cancer. AB - Activation of PI3K/AKT pathway occurs frequently in tumors and is correlated with radioresistance. The PI3K/AKT pathway can be an important target for improvement of radiotherapy. Although adding of chemotherapy to radiation therapy regimen enhances survival in patients with locally advanced pancreatic cancer, more effective therapies for increasing radiosensitivity are urgently needed. In this study, we investigated whether the novel PI3K inhibitor HS-173 could attenuate radiation-induced up-regulation of DNA damage repair processes and assessed its efficacy as a radio- and chemo-sensitizer. Radiosensitizing effects of HS-173 were tested in human pancreatic cells using clonogenic survival and growth assays. Mechanisms underlying the effects of HS-173 and radiation were determined by assessing cell cycle and DNA damage- repair pathway components, including ataxia-telangiectasia mutated (ATM) and DNA-dependent protein kinase catalytic subunit (DNA-PKcs). The in vivo efficacy of HS-173 in cancer radiotherapy was evaluated using a human tumor xenograft model. HS-173 significantly increased the sensitivity of pancreatic cancer cells to radiation, an effect that was associated with G2/M cell cycle arrest. HS-173 also significantly attenuated DNA damage repair by potently inhibiting ATM and DNA-PKcs, the two major kinases that respond to radiation-induced DNA double-strand breaks (DSBs), resulting in sustained DNA damage. Moreover, the combination of HS-173 and radiation delayed tumor growth and impaired DNA repair in a pancreatic cancer xenograft model, reflecting enhanced radiosensitization. These results showed that HS-173 significantly improved radiotherapy by inhibiting the DNA damage-repair pathway in pancreatic cancer. We therefore suggest that HS-173 may be an effective radiosensitizer for pancreatic cancer. PMID- 29348876 TI - Genome-wide transcriptional profiling identifies potential signatures in discriminating active tuberculosis from latent infection. AB - To better understand the host immune response involved in the progression from latent tuberculosis infection (LTBI) to active tuberculosis (TB) and identify the potential signatures for discriminating TB from LTBI, we performed a genome-wide transcriptional profile of Mycobacterium tuberculosis (M.TB)-specific antigens stimulated peripheral blood mononuclear cells (PBMCs) from patients with TB, LTBI individuals and healthy controls (HCs). A total of 209 and 234 differentially expressed genes were detected in TB vs. LTBI and TB vs. HCs, respectively. Nineteen differentially expressed genes with top fold change between TB and the other 2 groups were validated using quantitative real-time PCR (qPCR), and showed 94.7% consistent expression pattern with microarray test. Six genes were selected for further validation in an independent sample set of 230 samples. Expression of the resistin (RETN) and kallikrein 1 (KLK1) genes showed the greatest difference between the TB and LTBI or HC groups (P < 0.0001). Receiver operating characteristic curve (ROC) analysis showed that the areas under the curve (AUC) for RETN and KLK1 were 0.844 (0.783-0.904) and 0.833 (0.769-0.897), respectively, when discriminating TB from LTBI. The combination of these two genes achieved the best discriminative capacity [AUC = 0.916 (0.872-0.961)], with a sensitivity of 71.2% (58.7%-81.7%) and a specificity of 93.6% (85.7%-97.9%). Our results provide a new potentially diagnostic signature for discriminating TB and LTBI and have important implications for better understanding the pathogenesis involved in the transition from latent infection to TB activation. PMID- 29348877 TI - Role of IRF4 in resistance to immunomodulatory (IMid) compounds(r) in Waldenstrom's macroglobulinemia. AB - Background: Immunomodulatory drugs, IMid compounds, are active in Waldenstrom's macroglobulinemia (WM), although in a lesser extent than multiple myeloma, where it was initially developed. We hypothesized WM tumour cells might develop mechanisms of resistance, and sought to identify and describe these mechanisms. Material and Method: MM and WM-derived cell lines, and Waldenstrom's CD19+ cells were treated using both lenalidomide and pomalidomide. Stable CRBN expressing cells were generated. Results: WM-derived cells were resistant to IMid compounds. We demonstrated a modulation of the downstream targets of IRF4, despite low expression of cereblon, and hypothesized IRF4 was the cause for resistance to IMid compounds. We ruled out the role of various IRF4 regulatory mechanisms, and other pathways activating WM tumor cells, such as B cell activators. Conclusion: This study demonstrated that mechanisms of resistance to IMid compounds could be not related to cereblon. IRF4 was identified as the potential mechanism of resistance to lenalidomide and pomalidomide in WM. It potentially explains the lesser activity observed in the clinic in WM. Interestingly, some WM patients benefited strongly to lenalidomide and pomalidomide, and future studies will have to describe the indirect mechanisms of IMid compounds in WM, possibly related to an immune-mediated process. PMID- 29348878 TI - Identification of cancer prognosis-associated functional modules using differential co-expression networks. AB - The rapid accumulation of cancer-related data owing to high-throughput technologies has provided unprecedented choices to understand the progression of cancer and discover functional networks in multiple cancers. Establishment of co expression networks will help us to discover the systemic properties of carcinogenesis features and regulatory mechanisms of multiple cancers. Here, we proposed a computational workflow to identify differentially co-expressed gene modules across 8 cancer types by using combined gene differential expression analysis methods and a higher-order generalized singular value decomposition. Four co-expression modules were identified; and oncogenes and tumor suppressors were significantly enriched in these modules. Functional enrichment analysis demonstrated the significantly enriched pathways in these modules, including ECM receptor interaction, focal adhesion and PI3K-Akt signaling pathway. The top ranked miRNAs (mir-199, mir-29, mir-200) and transcription factors (FOXO4, E2A, NFAT, and MAZ) were identified, which play an important role in deregulating cellular energetics; and regulating angiogenesis and cancer immune system. The clinical significance of the co-expressed gene clusters was assessed by evaluating their predictability of cancer patients' survival. The predictive power of different clusters and subclusters was demonstrated. Our results will be valuable in cancer-related gene function annotation and for the evaluation of cancer patients' prognosis. PMID- 29348879 TI - Loss of NEIL3 DNA glycosylase markedly increases replication associated double strand breaks and enhances sensitivity to ATR inhibitor in glioblastoma cells. AB - DNA endonuclease eight-like glycosylase 3 (NEIL3) is one of the DNA glycosylases that removes oxidized DNA base lesions from single-stranded DNA (ssDNA) and non-B DNA structures. Approximately seven percent of human tumors have an altered NEIL3 gene. However, the role of NEIL3 in replication-associated repair and its impact on modulating treatment response is not known. Here, we report that NEIL3 is localized at the DNA double-strand break (DSB) sites during oxidative DNA damage and replication stress. Loss of NEIL3 significantly increased spontaneous replication-associated DSBs and recruitment of replication protein A (RPA). In contrast, we observed a marked decrease in Rad51 on nascent DNA strands at the replication fork, suggesting that HR-dependent repair is compromised in NEIL3 deficient cells. Interestingly, NEIL3-deficient cells were sensitive to ataxia telangiectasia and Rad3 related protein (ATR) inhibitor alone or in combination with PARP1 inhibitor. This study elucidates the mechanism by which NEIL3 is critical to overcome oxidative and replication-associated genotoxic stress. Our findings may have important clinical implications to utilize ATR and PARP1 inhibitors to enhance cytotoxicity in tumors that carry altered levels of NEIL3. PMID- 29348880 TI - The potential mechanism of extracellular high mobility group box-1 protein mediated p53 expression in immune dysfunction of T lymphocytes. AB - In the present study, we examined the activity of p53 protein in Jurkat cells treated with high mobility group box-1 protein (HMGB1), thereafter we investigated the mechanism of extracellular HMGB1 mediated p53 expression in immune dysfunction of T lymphocytes. mRNA expression of p53, mdm2, and p21 was determined by Real-time reverse transcription-polymerase chain reaction(RT-PCR). The apoptotic rate of Jurkat cells was analyzed by flow cytometry. Expressions of bcl-2, bax, caspase-3, phosphorylated (p) extracellular signal-regulated kinase (ERK)1/2, ERK1/2, p-p38 mitogen-activated protein kinase (MAPK), p38 MAPK, and p c-jun amino-terminal kinase (JNK)1/2 and JNK1/2 were simultaneously determined by Western blotting. After treatment with HMGB1 (100 ng/ml or 1000 ng/ml), the proliferative activity of Jurkat cells was significantly decreased, and a low and medium concentration of HMGB1 induced an up-regulation of p53 mRNA, p-p53 and p53 protein expression. Meanwhile, levels of mdm2 and p21 were elevated by incubated with HMGB1 (100 ng/ml) for 24 or 48 hours. Moreover, the proliferation of Jurkat cells in response to HMGB1 (100 ng/ml) in the vector group was significantly depressed. The bax and caspase-3 levels in p53 shRNA-expressed cells treated with HMGB1 (100 ng/ml) was markedly decreased, whereas expression of bcl-2 was obviously enhanced. Among ERK1/2, p38 MAPK and JNK1/2 signaling, only p38 MAPK pathway could be significantly activated by treatment with HMGB1, and the specific inhibitor of p38 MAPK was used, p53 and p-p53 expression induced by HMGB1 were significantly down-regulated. Taken together, our data strongly indicated that HMGB1 might enhance p53 expression, which was associated with both the proliferative activity as well as apoptosis of T cells. PMID- 29348881 TI - Allogeneic stem cell transplantation in acute lymphoblastic leukemia patients older than 60 years: a survey from the acute leukemia working party of EBMT. AB - Hematopoietic stem cell transplantation (HSCT) is being increasingly explored as a treatment modality for older patients with acute lymphoblastic leukemia (ALL). Yet, concerns regarding the long term outcome of transplantation in older patients limit the wide spread applicability of this approach. In this analysis we set out to determine the outcome of ALL patients over the age of 60 who underwent reduced intensity HSCT. Herein, we present the experience of the acute leukemia working party (ALWP) of the EBMT in this age group. We analyzed a cohort of 142 patients transplanted in first remission with a median age of 62 (range 60 76 years) and a median follow-up period of 36 months post-transplant. At 3 years, overall survival (OS) and leukemia-free survival were 42% and 35%, respectively. Multivariate analyses identified cytomegalovirus (CMV) donor-recipient matching (CMV D+/R+) to be significantly associated with inferior OS. Patients transplanted from unrelated donors experienced increased grade II-IV acute graft versus host disease compared to those receiving grafts from matched related donors [Hazard ratio (HR) of 3.7, 95% confidence interval (CI), 1.75-7.8; p = 0.0005). Outcome was not impacted by Philadelphia chromosome status. A select subset of older ALL patients will benefit from extended survival and a disease free state following HSCT. PMID- 29348882 TI - MicroRNA203a suppresses glioma tumorigenesis through an ATM-dependent interferon response pathway. AB - Glioblastoma (GBM) is a deadly and incurable brain tumor. Although microRNAs (miRNAs) play critical roles in regulating the cancer cell phenotype, the underlying mechanisms of how they regulate tumorigenesis are incompletely understood. We previously showed that miR-203a is expressed at relatively low levels in GBM patients, and ectopic miR-203a expression in GBM cell lines inhibited cell proliferation and migration, increased sensitivity to apoptosis induced by interferon (IFN) or temozolomide in vitro, and inhibited GBM tumorigenesis in vivo. Here we show that ectopic expression of miR-203a in GBM cell lines promotes the IFN response pathway as evidenced by increased IFN production and IFN-stimulated gene (ISG) expression, and high basal tyrosine phosphorylation of multiple STAT proteins. Importantly, we identified that miR 203a directly suppressed the protein levels of ataxia-telangiectasia mutated (ATM) kinase that negatively regulates IFN production. We found that high ATM expression in GBM correlates with poor patient survival and that ATM expression is inversely correlated with miR-203a expression. Knockout of ATM expression and inhibition of ATM function in GBM cell lines inhibited cell proliferation and migration, increased sensitivity to apoptosis induced by therapeutic agents in vitro, and markedly suppressed GBM tumor growth and promoted animal survival. In contrast, restoring ATM levels in GBM cells ectopically expressing miR-203a increased tumorigenicity and decreased animal survival. Our study suggests that low miR-203a expression in GBM suppresses the interferon response through an ATM dependent pathway. PMID- 29348883 TI - Spatial habitats from multiparametric MR imaging are associated with signaling pathway activities and survival in glioblastoma. AB - Glioblastoma (GBM) show significant inter- and intra-tumoral heterogeneity, impacting response to treatment and overall survival time of 12-15 months. To study glioblastoma phenotypic heterogeneity, multi-parametric magnetic resonance images (MRI) of 85 glioblastoma patients from The Cancer Genome Atlas were analyzed to characterize tumor-derived spatial habitats for their relationship with outcome (overall survival) and to identify their molecular correlates (i.e., determine associated tumor signaling pathways correlated with imaging-derived habitat measurements). Tumor sub-regions based on four sequences (fluid attenuated inversion recovery, T1-weighted, post-contrast T1-weighted, and T2 weighted) were defined by automated segmentation. From relative intensity of pixels in the 3-dimensional tumor region, "imaging habitats" were identified and analyzed for their association to clinical and genetic data using survival modeling and Dirichlet regression, respectively. Sixteen distinct tumor sub regions ("spatial imaging habitats") were derived, and those associated with overall survival (denoted "relevant" habitats) in glioblastoma patients were identified. Dirichlet regression implicated each relevant habitat with unique pathway alterations. Relevant habitats also had some pathways and cellular processes in common, including phosphorylation of STAT-1 and natural killer cell activity, consistent with cancer hallmarks. This work revealed clinical relevance of MRI-derived spatial habitats and their relationship with oncogenic molecular mechanisms in patients with GBM. Characterizing the associations between imaging derived phenotypic measurements with the genomic and molecular characteristics of tumors can enable insights into tumor biology, further enabling the practice of personalized cancer treatment. The analytical framework and workflow demonstrated in this study are inherently scalable to multiple MR sequences. PMID- 29348884 TI - Alpha-1-antitrypsin functions as a protective factor in preeclampsia through activating Smad2 and inhibitor of DNA binding 4. AB - Pre-eclampsia (PE) is one of the most common reason for high morbidity and mortality of maternal and prenatal infants. Production from oxidative stress results in maternal ROS system and anti-oxidation defense system imbalance to promote tissue ischemia and hypoxia, and ultimately impairs the maternal organs and placenta. Our previous study showed that exogenous Alpha-1-antitrypsin (AAT) and overexpression of AAT in umbilical vein cell (HUVEC) hypoxia-reoxygenation model could increase the activity of antioxidant enzymes, and played a protective role in preeclampsia animal model. In this study, we aim to investigate the underlying mechanism by which AAT prevents PE progress. Whole-exome sequencing was performed to screen the genes altered by AAT. We found that AAT knockdown altered the expression of Smad family and Id family genes, and further demonstrated that AAT positively regulated Id4 expression through activating Smad2. Reduced Id4 expression and Smad2 phosphorylation were observed in preeclampsia animal model, which was also confirmed in human placenta tissues. In addition, AAT protected HUVEC cells from hypoxia/reoxygenation injury and relieved preeclampsia symptoms through Smad2/Id4 axis. Our data illustrate AAT/Smad2/Id4 axis is an important mediator of placenta and vascular function during pregnancy. These findings provide insights into events governing pregnancy associated disorders, such as preeclampsia. PMID- 29348885 TI - Drug-resistance in doxorubicin-resistant FL5.12 hematopoietic cells: elevated MDR1, drug efflux and side-population positive and decreased BCL2-family member expression. AB - Chemotherapeutic drug treatment can result in the emergence of drug-resistant cells. By culturing an interleukin-3 (IL-3)-dependent cell line, FL5.12 cells in the presence of the chemotherapeutic drug doxorubicin, we isolated FL/Doxo cells which are multi-drug resistant. Increased levels of drug efflux were detected in FL/Doxo cells which could be inhibited by the MDR1 inhibitor verapamil but not by the MRP1 inhibitor MK571. The effects of TP53 and MEK1 were examined by infection of FL/Doxo cells with retroviruses encoding either a dominant negative TP-53 gene (FL/Doxo+ TP53 (DN) or a constitutively-activated MEK-1 gene (FL/Doxo + MEK1 (CA). Elevated MDR1 but not MRP1 mRNA transcripts were detected by quantitative RT-PCR in the drug-resistant cells while transcripts encoding anti-apoptotic genes such as: BCL2, BCLXL and MCL1 were observed at higher levels in the drug sensitive FL5.12 cells. The percentage of cells that were side-population positive was increased in the drug-resistant cells compared to the parental line. Drug-resistance and side-positive population cells have been associated with cancer stem cells (CSC). Our studies suggest mechanisms which could allow the targeting of these molecules to prevent drug-resistance. PMID- 29348886 TI - FRK inhibits breast cancer cell migration and invasion by suppressing epithelial mesenchymal transition. AB - The human fyn-related kinase (FRK) is a non-receptor tyrosine kinase known to have tumor suppressor activity in breast cancer cells. However, its mechanism of action has not been fully characterized. We generated FRK-stable MDA-MB-231 breast cancer cell lines and analyzed the effect on cell proliferation, migration, and invasiveness. We also used kinome analysis to identify potential FRK-regulated signaling pathways. We employed both immunoblotting and RT-PCR to identify/validate FRK-regulated targets (proteins and genes) in these cells. Finally, we interrogated the TCGA and GENT gene expression databases to determine the correlation between the expression of FRK and epithelial/mesenchymal markers. We observed that FRK overexpression suppressed cell proliferation, migration, and invasiveness, inhibited various JAK/STAT, MAPK and Akt signaling pathways, and suppressed the expression of some STAT3 target genes. Also, FRK overexpression increased the expression of epithelial markers including E-cadherin mRNA and down regulated the transcript levels of vimentin, fibronectin, and slug. Finally, we observed an inverse correlation between FRK expression and mesenchymal markers in a large cohort of breast cancer cells. Our data, therefore, suggests that FRK represses cell proliferation, migration and invasiveness by suppressing epithelial to mesenchymal transition. PMID- 29348887 TI - RNA-seq expression profiling of rat MCAO model following reperfusion Orexin-A. AB - Orexin-A is a neuropeptide with potent neuroprotective activity towards cerebral ischemia-reperfusion (I/R) injury, but few studies have attempted to elucidate the mechanism. Herein, we performed global gene expression profiling of the hippocampus following reperfusion with Orexin-A using RNA sequencing (RNA-seq). RNA-seq identified 649 differentially expressed genes (DEGs) in the Orexin-A group compared with saline controls (I/R group), of which 149 were up-regulated and 500 were down-regulated. DEGs were confirmed using qRT-PCR, their molecular functions, biological processes and molecular components were explored using Gene Ontology (GO) analysis and 206 KEGG pathways were associated with Orexin-A treatment. MAPK, chemokine and calcium signalling pathways were mainly responsible for the neuroprotective effects of Orexin-A. Hspb1, Igf2 and Ptk2b were selected for functional interaction analysis by GeneMANIA. The results suggest that Orexin-A modifies gene expression in the hippocampus, leading to neuroprotection from I/R injury. The study provides a basis for future elucidation of the molecular mechanisms underlying Orexin-A. PMID- 29348888 TI - The association analysis of TLR2 and TLR4 gene with tuberculosis in the Tibetan Chinese population. AB - Background: The present study was undertaken to explore the relationship of Toll like receptor (TLR) 2, TLR4 genes polymorphisms with Pulmonary tuberculosis (PTB) risk in a sample of Chinese population. Methods: For this study, we recruited 467 subjects with PTB and 504 healthy subjects from a Tibetan population living in near or in Xi'an, China. Association analyses of single-nucleotide polymorphisms (SNPs) in TLR2 and TLR4 were performed with SPSS Statistics (version 17.0), SNPStats, Haploview (version 4.2), and SHEsis software. Results: The research results that is association analysis of pulmonary tuberculosis show there are two increased-risk SNPs (rs7696323, OR=1.32, 95%CI =1.08-1.62, P= 0.007; rs12377632, OR=1.30, 95%CI =1.09-1.55, P= 0.004) and three decreased-risk SNPs (rs3804099, OR=0.64, 95%CI =0.52-0.79, P= 1.9510-5; rs3804100, OR=0.67, 95%CI =0.54-0.82, P= 0.0001; rs11536889, OR=0.54, 95%CI =0.42-0.69, P= 9.1410-7). Conclusions: We found that two SNPs are associated with increased PTB risk and three SNPs decreased PTB risk in the Chinese Tibetan population. Our findings demonstrate an association between TLR2 and TLR4 polymorphisms and PTB. PMID- 29348889 TI - Metformin and temozolomide, a synergic option to overcome resistance in glioblastoma multiforme models. AB - Glioblastoma multiforme (GBM) is the most aggressive primary brain tumor with poor survival. Cytoreduction in association with radiotherapy and temozolomide (TMZ) is the standard therapy, but response is heterogeneous and life expectancy is limited. The combined use of chemotherapeutic agents with drugs targeting cell metabolism is becoming an interesting therapeutic option for cancer treatment. Here, we found that metformin (MET) enhances TMZ effect on TMZ-sensitive cell line (U251) and overcomes TMZ-resistance in T98G GBM cell line. In particular, combined-treatment modulated apoptosis by increasing Bax/Bcl-2 ratio, and reduced Reactive Oxygen Species (ROS) production. We also observed that MET associated with TMZ was able to reduce the expression of glioma stem cells (GSC) marker CD90 particularly in T98G cells but not that of CD133. In vivo experiments showed that combined treatment with TMZ and MET significantly slowed down growth of TMZ resistant tumors but did not affect overall survival of TMZ-sensitive tumor bearing mice. In conclusion, our results showed that metformin is able to enhance TMZ effect in TMZ-resistant cell line suggesting its potential use in TMZ refractory GBM patients. However, the lack of effect on a GBM malignancy marker like CD133 requires further evaluation since it might influence response duration. PMID- 29348890 TI - Adoptive immunotherapy shows encouraging benefit on non-small cell lung cancer: a systematic review and meta-analysis. AB - Although adoptive immunotherapy (AIT) is a novel emerging target treatment for non-small cell lung cancer (NSCLC), its actual efficacy remains controversial. In this meta-analysis, we aimed to evaluate the efficacy of AIT for NSCLC. We systematically searched PubMed, the Cochrane Library, EMBASE, Medline, and Web of Science for relevant parallel randomized controlled trials (RCTs) and high quality observation studies of AIT without any language restrictions. Two investigators reviewed all the texts and extracted information regarding overall survival rate (OS), progression-free survival rate (PFS), objective response rate (ORR), and disease control rate (DCR) from eligible studies; sensitivity analyses and subgroup analyses were also conducted to reduce heterogeneity Of 319 suitable studies, 15 studies (13 RCTs and 2 observation studies) involving 1684 patients were finally included. Compared to the Control therapy (CT) group, the AIT group exhibited better 1-year OS (P = 0.001), 2-year OS (P < 0.001), 3-year OS (P < 0.001), 5-year OS (P = 0.032), 1-year PFS (P < 0.001), and 2-year PFS (P = 0.029). The difference in the ORR (P = 0.293) and DCR (P = 0.123) was not significant between the groups. The subgroup analysis showed that DC/CIK did more benefit to NSCLC patients than LAK and the cycles not associated with AIT efficacy. AIT can significantly improve the OS and PFS with acceptable toxicity for NSCLC. Nevertheless, further multicenter studies are needed to confirm our conclusion and determine which adoptive immunotherapy is associated with the greatest efficacy. PMID- 29348891 TI - Clinicopathological impacts of high c-Met expression in head and neck squamous cell carcinoma: a meta-analysis and review. AB - High c-Met expression has been observed in head and neck squamous cell carcinoma (HNSCC). However, its clinicopathological impact remains controversial. We performed this meta-analysis to evaluate the pathologic and prognostic impacts of c-Met overexpression in patients with HNSCC. A systematic computerized search of the electronic databases was carried out. From 16 studies, 1,948 patients with HNSCC were included in the meta-analysis. Compared with HNSCCs showing low c-Met expression, tumors with high c-Met expression were significantly associated with higher rate of lymph node metastasis (odds ratio = 3.26, 95% CI: 2.27-4.69, P < 0.00001) and higher T stage (odds ratio = 1.33, 95% CI: 1.03-1.71, P = 0.03). In addition, patients with c-Met-high HNSCC showed significantly worse disease-free survival (hazard ratio = 1.49, 95% CI: 1.04-2.14, P = 0.03) and overall survival (hazard ratio = 1.83, 95% CI: 1.29-2.60, P = 0.0007) than those with c-Met-low tumor. In conclusion, this meta-analysis demonstrates that high c-Met expression is significantly associated with worse pathological features and prognosis, indicating c-Met overexpression is an adverse prognostic marker for patients with HNSCC. PMID- 29348892 TI - Association between cadmium exposure and diabetes mellitus risk: a prisma compliant systematic review and meta-analysis. AB - Cadmium (Cd) is a pollutant with multiple adverse health effects: cancer, renal dysfunction, osteoporosis and fracture, and cardiovascular disease. Several population-based studies found an association between Cd and diabetes mellitus (DM), but this association is inconsistent with other research. We conducted meta analysis to examine relationship between urinary/blood Cd exposure and DM risk. Pertinent studies were identified by searching PubMed and Embase databases, and combined odds ratio (OR) and corresponding 95% confidence interval (CI) were applied to evaluate said association. Meta-analysis showed that high U-Cd exposure is not correlated with DM risk (OR = 1.19; 95% CI = 0.83-1.71), and high B-Cd exposure is also not associated with increased risk of DM (OR = 1.16; 95% CI = 0.84-1.62) in the general population. Subgroup and sensitivity analysis proved similar results, with little evidence of publication bias. This meta-analysis suggests that high U-Cd/B-Cd exposure may not be risk factor for DM in general populations. However, large prospective studies are needed to confirm this finding. PMID- 29348893 TI - Diagnostic accuracy of DNA methylation in detection of gastric cancer: a meta analysis. AB - Emerging studies demonstrate the diagnostic utility of DNA methylation-based blood test for gastric cancer. The aim of the meta-analysis is to evaluate the accuracy of blood DNA methylation markers for detecting patients with gastric cancer. A systematic literature search to November 2016 that evaluated DNA methylation markers utilizing blood specimen to detect gastric cancer were selected to derive pooled sensitivities and specificities. 32 studies including 4,172 patients (gastric cancer (N = 2,098), control (N = 2,074)) met the study criteria. Overall sensitivity of DNA methylation-based blood test for detecting gastric cancer was 57% (95% CI 50-63%); specificity was 97% (95% CI 95-98%). Among patients who received plasma-based testing, sensitivity was 71% (95% CI 59 81%); specificity was 89% (95% CI 78-94%). Among patients who received serum based testing, sensitivity was 50% (95% CI 43-58%); specificity was 98% (95% CI 96-99%). Using multiple methylated genes had sensitivity of 76% (95% CI 64-84%); specificity of 85% (95% CI 65-95%). DNA methylation test had sensitivity of 55% (95% CI 47-64%) and specificity of 96% (95% CI 92-98%) for detecting TNM stage I+II gastric cancer. In conclusion, blood-based DNA methylation test had high specificity but modest sensitivity for detecting gastric cancer. Evaluating multiple methylated genes or using plasma sample may improve the diagnostic sensitivity. PMID- 29348894 TI - The efficacy and safety of tivantinib in the treatment of solid tumors: a systematic review and meta-analysis. AB - Background: Tivantinib was designed to kill cancers by targeting the mesenchymal epithelial transition (MET) protein. Although numerous tivantinib clinical trials are ongoing, tivantinib's efficacy and safety are still not clear. This meta analysis was done to evaluate tivantinib's efficacy and safety in solid tumor treatment. Materials and Methods: PUBMED, EMBASE, and other databases were searched for eligible tivantinib clinical trials. The hazard ratio (HR) and 95% confidence interval (CI) of progression-free and overall survival (PFS and OS, respectively) were pooled and analyzed to evaluate tivantinib's efficacy. Data concerning adverse events (Grade >= 3) were pooled to calculate relative risks (RRs) with 95% CI for tivantinib-treated compared with control arms. Findings: Patients (1824) from six randomized control trials (RCTs) were enrolled. Compared with controls, tivantinib produced a significant improvement in PFS (HR, 0.73; 95% CI 0.65-0.83) but not in OS. In the non-small-cell lung cancer (NSCLC) subgroup, tivantinib combined with erlotinib prolonged patients' PFS when compared with controls (HR, 0.75; 95% CI, 0.65-0.86). In the white population, tivantinib also significantly improve PFS between treatment and control arms (HR, 0.75; 95% CI, 0.65-0.87). Tivantinib significantly improved OS in patients with high levels of MET expression. Tivantinib was shown to increase the risk of anemia and neutropenia. Interpretation: Tivantinib was better in prolonging PFS (not OS) in patients with solid tumors. High MET expression cancers may benefit from tivantinib. Tivantinib appeared to be well-tolerated by patients. PMID- 29348895 TI - Upregulated SOX9 expression indicates worse prognosis in solid tumors: a systematic review and meta-analysis. AB - It was recently reported that increased SOX9 expression drives tumor growth and promotes cancer invasion during human tumorigenicity and metastasis. However, the prognostic value of SOX9 for the survival of patients with solid tumors remains controversial. The present meta-analysis was thus performed to highlight the link between dysregulated SOX9 expression and prognosis in cancer patients. A systematic literature search was conducted using the electronic databases PubMed, Web of Science and Embase to identify eligible studies. A random-effects meta analytical model was employed to correlate SOX9 expression with overall survival (OS), disease-free survival (DFS) and clinicopathological features. In total, 17 studies with 3307 patients were eligible for the final analysis. Combined hazard ratios (HRs) and 95% confidence intervals (CIs) suggested that high SOX9 expression has an unfavourable impact on OS (HR = 1.66, 95% CI 1.36-2.02, P < 0.001) and DFS (HR = 3.54, 95% CI 2.29-5.47, P = 0.008) in multivariate analysis. Additionally, the pooled odds ratios (ORs) indicated that SOX9 over-expression is associated with large tumor size, lymph node metastasis, distant metastasis and a higher clinical stage. Overall, these results indicated that SOX9 over-expression in patients with solid tumors might be related to poor prognosis and could serve as a potential predictive marker of poor clinicopathological prognosis factor. PMID- 29348896 TI - Prognostic value of long non-coding RNA PVT1 as a novel biomarker in various cancers: a meta-analysis. AB - Background: Plasmacytoma variant translocation 1 (PVT1) has recently been reported to be aberrantly expressed and serves as a prognostic biomarker in many types of cancers. However, its prognostic significance remains controversial. Here, we conducted a meta-analysis to investigate the prognostic value of PVT1 expression in cancers. Results: A total of 2109 patients from 20 studies were included. The results showed that elevated PVT1 expression predicted a poor outcome for overall survival (OS) in nine types of cancers (HR = 1.40, 95% CI: 1.21-1.59). Subgroup analysis indicated that there was a significant association between PVT1 overexpression and poor OS of patients with gastric cancer, gynecology cancer and lung cancer. Furthermore, we also found a negative significant relationship between PVT1 expression and disease-free survival (HR = 1.83, 95% CI: 1.39-2.27), progression-free survival (HR = 1.63, 95% CI: 1.34 1.93) and recurrence-free survival (HR = 1.74, 95% CI: 1.01-2.47). In addition, the level of PVT1 expression was positively related to tumor size, TNM stage, lymph node metastasis and distant metastases. Materials and Methods: A systematic search was performed through the PubMed, EMBASE, Web of Science, Ovid and Cochrane library databases for eligible studies on prognostic value of PVT1 in cancers from inception up to June, 2017. The pooled hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (CIs) were used to evaluate the association between PVT1 expression and clinical outcomes. Conclusions: PVT1 expression positively related to tumor size, TNM stages, lymph node metastasis and distant metastases, and served as a prognostic biomarker in different types of cancers. PMID- 29348897 TI - Interferon-alpha adjuvant therapy decreases the recurrence of early clear cell renal cell carcinoma and improves the prognosis of Chinese patients. AB - The survival time of patients with early clear cell renal cell carcinoma (ccRCC) is fairly long, but 20% to 30% of patients with localized tumors experience relapse, and the effect of IFN-alpha on survival has not been well studied in patients with early ccRCC. In this study, 208 patients with early ccRCC were treated with surgery, and 54 of the patients received IFN-alpha as adjuvant therapy. The remaining 115 patients were treated with surgery but not with IFN alpha therapy. The primary endpoint was the recurrence rate, 20.37% (11/54) and 33.04% (38/115) in the IFN-alpha and surgery-only group, respectively. The secondary endpoint was progression-free survival (PFS), which was 123.70 (95% CI: 107.18-140.22) months for the IFN-alpha group, and 95.80 (95% CI: 82.18-109.42) months for the non-IFN-alpha group; this difference was significant (P < 0.05). The main side effects were pyrexia (61.11%), muscle pain (24.07%), malaise (9.26%), anorexia (5.56%), hepatic dysfunction (3.70%) and renal dysfunction (1.85%). Moreover, a multivariate regression identified older age, higher BMI index and smoking as significant and independent predictors of decreased PFS (P < 0.05). Overall, IFN-alpha therapy significantly improved PFS in Chinese patients with early ccRCC and was an independent prognostic factor (P < 0.05). In conclusion, our study showed that adjuvant IFN-alpha therapy decreased the recurrence rate and prolonged PFS in patients with ccRCC. Thus, this treatment may help clinicians to select a better treatment modality and better predict survival in these patients. PMID- 29348898 TI - Avoiding thermal injury during near-infrared photoimmunotherapy (NIR-PIT): the importance of NIR light power density. AB - Near-infrared photoimmunotherapy (NIR-PIT) is a newly-established cancer treatment which employs the combination of an antibody-photoabsorber conjugate (APC) and NIR light. When NIR light is absorbed by APC-bound tissues, a certain amount of heat is generated locally. For the most part this results in a subclinical rise in skin temperature, however, excessive light exposure may cause non-specific thermal damage. In this study, we investigated the potential for thermal damage caused by NIR-PIT by measuring surface temperature. Two sources of light, laser and light emitting diode (LED), were compared in a mouse tumor model. First, we found that the skin was heated rapidly by NIR light regardless of whether laser or LED light sources were used. Air cooling at the surface reduced the rise in temperature. There were no associations between the rise of skin temperature and tumor volume of the treated tumor, or APC concentration. Second, we investigated the extent of thermal damage to the skin at various light doses. We detected burn injuries 1 day after NIR-PIT, when the NIR light was at a power density higher than 600 mW/cm2. Successful treatments at lower power density could be achieved if the total light energy absorbed by the tumor was the same, i.e. by extending the duration of light exposure. In conclusion, this study demonstrates that thermal injury after NIR-PIT can be avoided by either employing a cooling system or by lowering the power density of the light source and prolonging the exposure time such that the total energy is constant. Thus, thermal damage is preventable side effect of NIR-PIT. PMID- 29348899 TI - Curative versus palliative treatments for colorectal cancer with peritoneal carcinomatosis: a systematic review and meta-analysis. AB - The objective of this study was to provide an up-to-date summary of the current evidence that may be useful for updating guidelines. We comprehensively searched the published literatures and conferences for studies that compared curative with palliative treatments in colorectal cancer patients with peritoneal metastasis. The primary outcomes considered in this study were three- and five-year overall survival rates. We pooled data across studies and estimated summary effect sizes. Overall, patients who received curative treatments had improved three-year survival (hazard ratio (HR), 2.19 [95% CI, 1.83 to 2.62]) and five-year survival (HR, 2.22 [95% CI, 1.83 to 2.69]) compared with those who received palliative treatments. Patients who received curative treatments had an increased risk of treatment-related morbidity (odds ratio (OR), 2.90 [95% CI, 2.02 to 4.17]), but there was no significant difference in treatment-related mortality between patients who received curative treatments and those who received palliative treatments (OR, 1.46 [CI, 0.62 to 3.47]). Curative treatments improved overall survival in colorectal cancer patients with peritoneal metastasis and did not increase the risk of treatment-related mortality. Curative treatments were associated with a higher risk of treatment-related morbidity. These data highlight the importance for further investigation aimed at prevention of treatment-associated morbidity. PMID- 29348900 TI - Validation of risk prediction models for the development of HBV-related HCC: a retrospective multi-center 10-year follow-up cohort study. AB - Recently, modified REACH-B (mREACH-B) risk prediction model for hepatocellular carcinoma (HCC) development was proposed. We validated the accuracy of the mREACH B model and compared its accuracy with those of other prediction models. Between 2006 and 2012, 1,241 patients with chronic hepatitis B (CHB) were recruited. All patients underwent transient elastography at enrollment. The median age of the study population (840 males, 401 females) was 49 years. The median PAGE-B, LSM HCC, and mREACH-B values were 10, 10, and 8, respectively. Among patients without cirrhosis (n = 940, 75.7%), the median REACH-B value was 9. During the follow-up period (median 77.4 months), 66 (5.3%) and 83 (6.7%) patients developed HCC and liver-related events (LRE), respectively. Higher liver stiffness (LS) independently predicted HCC (hazard ratio [HR] = 1.047) and LRE development (HR = 1.047) (all P < 0.05). The mREACH-B significantly predicted HCC (AUC = 0.824 at 3 year and 0.750 at 5-year) and LRE development (AUC = 0.782 at 3-year and 0.739 at 5-year) (all P < 0.001) and it performed similarly or significantly better than the PAGE-B and LSM-HCC (AUC = 0.715-0.809 at 3-year and 0.719-0.742 at 5-year for HCC; AUC = 0.704-0.777 at 3-year and 0.721-0.735 at 5-year for LRE). Among patients without cirrhosis, mREACH-B predicted HCC (AUC = 0.803 vs. 0.654-0.816 at 3-year and 0.684 vs. 0.639-0.738 at 5-year) and LRE development (AUC = 0.734 vs. 0.619-0.789 at 3-year and 0.674 vs. 0.626-0.729 at 5-year) similarly to PAGE B, REACH-B, and LSM-HCC. mREACH-B appropriately predicted HCC and LRE development in patients with CHB and showed similar or superior accuracy to those of PAGE-B, REACH-B, and LSM-HCC. PMID- 29348901 TI - Prevalence and risk factors of lower urinary tract symptoms in Chinese adult men: a multicentre cross-sectional study. AB - There has been no previous population-based study reporting the prevalence and risk factors of male lower urinary tract symptoms (LUTS) among men in mainland China. This cross-sectional study was conducted from 2013 to 2014 in three representative provinces of China: Guangdong, Hubei and Jiangsu. 3250 individuals participated in the interviews, which involved a questionnaire covering sociodemographic characteristics, lifestyle, dietary patterns and the International Prostate Symptom Score (IPSS). Blood was collected for lipids, glucose, insulin and reproductive hormone tests. The incidences of LUTS and its obstructive and irritative symptoms were calculated. Risk factors for LUTS were identified using multivariable logistic regression analysis. The prevalence of moderate to severe LUTS and its obstructive and irritative symptoms was 14.3%, 13.1% and 16.1%, respectively, and increased with age. The prevalence in Guangdong was much lower than that in Hubei and Jiangsu in different ages. Increased fasting plasma glucose and decreased HDL-C levels were associated with an increased risk of moderate to severe LUTS (OR = 1.30, 95% CI: 1.02-1.65 and OR = 2.06, 95% CI: 1.08-3.94, respectively). Free testosterone < 0.22 ng/ml decreased the risk of moderate to severe LUTS and obstructive and irritative symptoms by about 20-30%. An inadequate daily intake of vegetables, fruit and water significantly increased the risk of LUTS by 1.3-to 2.0 times. In conclusion, the prevalence of LUTS in Chinese men is high and increases with age. Dietary patterns may be critical for the development of LUTS. Thus, dietary modifications could be a useful strategy for preventing the development of LUTS. PMID- 29348902 TI - Feasibility and outcome of primary laparoscopic cytoreductive surgery for advanced epithelial ovarian cancer: a comparison to laparotomic surgery in retrospective cohorts. AB - Objectives: To assess the feasibility and outcome of primary laparoscopic cytoreductive surgery on advanced epithelial ovarian cancer in comparison with conventional open surgery. Materials and Methods: Patients undergoing primary laparoscopic cytoreductive surgery (LCS) from March 2007 to December 2016 were matched to controls treated with laparotomic cytoreduction during the same period. Procedural data and outcomes were analyzed. Results: The LCS group (n = 64) and laparotomic group (n = 68) had similar age, BMI, stages, histologic type and grading. The LCS group exhibited significantly less operating time (P < 0.001), less intraoperative blood loss (P < 0.001), and shorter time to recover postoperatively (P = 0.002). No statistical difference was observed for the number of pelvic and para-aortic lymph nodes dissected (P = 0.326 and P = 0.151). Significant difference was observed in satisfaction of the cytoreduction (95.3% vs. 76.5%, P = 0.008). No significant difference were observed either in intra operative or in post-operative complications between the two groups (P = 0.250). Three patients in the LCS group experienced intra-operative complications (4.7%) and were all treated laparoscopically. The conversion rate was 3.1%. No significant differences were observed in the progression-free survival and overall survival between the two groups during the medium follow-up of 18 months (P = 0.236 and P = 0.216). The 2-year and 3-year progression-free survival was 67.9%, 55.5% in LCS group and 53.8%, 33.3% respectively in the control group. The 2-year and 3-year overall survival was 95.8%, 88.7% respectively in the LCS group and 89.0%, 83.7% in the control group. Conclusions: Primary laparoscopic cytoreductive surgery in some strictly selected advanced stages of EOC patients was feasible and safe, resulting in oncologic outcomes not inferior to those in open surgery. PMID- 29348903 TI - The systemic inflammation-based Glasgow Prognostic Score as a powerful prognostic factor in patients with upper tract urothelial carcinoma. AB - Introduction and Objective: The combination of C-reactive protein and albumin, the Glasgow Prognostic Score (GPS), had independent prognostic value in patients with varying cancers, except for upper tract urothelial carcinoma (UTUC). The aim of this study was to describe the relationship between GPS and survival in patients with UTUC after adjustment for other prognostic factors. Materials and Methods: We queried 2 UTUC databases. Retrospective clinical series on patients with localized UTUC managed by nephroureterectomy with bladder cuff, for whom data from the Yamaguchi Uro-Oncology Group and Osaka Medical College registry, including age, presence of bladder cancer, pT stage, lymphovascular invasion, C reactive protein (CRP) and albumin, were analyzed. The GPS was constructed by combining CRP and albumin. Cancer specific survival (CSS) and overall survival (OS) and relative excess risk of death were estimated by GPS categories after adjusting for gender, age, ECOG performance status (PS), grade, and lymphovascular invasion (LVI). Results: Seven hundred and twenty four UTUC patients were identified. Our final cohort included 574 patients; of these, 29.2% died during a maximum follow up of 16.7 years. The estimated mean 10-year CSS of patients with GPS of scre-0, -1, and -2 was 99.5, 95.1, and 75.9 months, respectively. Patients with GPS of score-2 had poorest 10-year estimated mean OS of 67.6 months (57.2-77.9). Raised GPS also had a significant association with excess risk of cancer death at 10 years (GPS 2: Relative Excess Risk = 1.74, 95% CI 1.20-2.54) after adjusting for gender, patients' age, ECOG PS, and tumor focality. C-index of GPS both for CSS and OS were superior to patients' age and tumor focality, and comparable to grade. Conclusions: The GPS is an independent prognostic factor for CSS and OS after surgery with curative intent for localized UTUC. It significantly increases the accuracy of established prognostic factors. The GPS may provide a meaningful adjunct for patient counseling and clinical trial design. PMID- 29348904 TI - Role of tissue-type plasminogen activator and plasminogen activator inhibitor-1 in psychological stress and depression. AB - Major depressive disorder is a common illness worldwide, but the pathogenesis of the disorder remains incompletely understood. The tissue-type plasminogen activator-plasminogen proteolytic cascade is highly expressed in the brain regions involved in mood regulation and neuroplasticity. Accumulating evidence from animal and human studies suggests that tissue-type plasminogen activator and its chief inhibitor, plasminogen activator inhibitor-1, are related to stress reaction and depression. Furthermore, the neurotrophic hypothesis of depression postulates that compromised neurotrophin brain-derived neurotrophic factor (BDNF) function is directly involved in the pathophysiology of depression. In the brain, the proteolytic cleavage of proBDNF, a BDNF precursor, to mature BDNF through plasmin represents one mechanism that can change the direction of BDNF action. We also discuss the implications of tissue-type plasminogen activator and plasminogen activator inhibitor-1 alterations as biomarkers for major depressive disorder. Using drugs that increase tissue-type plasminogen activator or decrease plasminogen activator inhibitor-1 levels may open new avenues to develop conceptually novel therapeutic strategies for depression treatment. PMID- 29348906 TI - An ANK1 IVS3-2A>C mutation causes exon 4 skipping in two patients from a Chinese family with hereditary spherocytosis. AB - Hereditary spherocytosis (HS) is a congenital hemolytic anemia that affects the cell membrane of red blood cells and is characterized by the presence of spherical-shaped erythrocytes in the peripheral blood film. The clinical manifestation of HS ranges from asymptomatic to severe cases that require transfusion during early childhood. HS is caused by mutations in red blood cell membrane protein encoding genes, including ANK1, EPB42, SLC4A1, SPTA1, and SPTB. Mutations of the ANK1 gene account for 75% of all HS cases, and these particular mutations are typically inherited in an autosomal dominant manner. In this study, heterozygous an ANK1 IVS3-2A>C mutation was identified in a 7-year-old girl with Coombs-negative and severe hemolytic jaundice using targeted next-generation sequencing (NGS) and Sanger sequencing. Spherocytes were observed in a peripheral smear. Osmotic fragility was increased, and glucose-6-phosphate dehydrogenase (G6PD) activity was normal. A genetic mutation screen for alpha- and beta thalassemia was negative. Autoimmune antibody tests were negative. Both the girl and her affected father received a splenectomy. Patient-derived peripheral blood mononuclear cells showed skipping of exon 4 in the mRNA, which confirmed the splicing mutation effect of the ANK1 IVS3-2A>C mutation. Moreover, the anemia was ameliorated after splenectomy. Our results demonstrate that the ANK1 IVS3-2A>C mutation may lead to exon 4 skipping of the ANK1 gene and cause HS. PMID- 29348905 TI - Bridging the divide: preclinical research discrepancies between triple-negative breast cancer cell lines and patient tumors. AB - Triple-negative breast cancer (TNBC) is the most refractory subtype of breast cancer and disproportionately accounts for the majority of breast cancer related deaths. Effective treatment of this disease remains an unmet medical need. Over the past several decades, TNBC cell lines have been used as the foundation for drug development and disease modeling. However, ever-mounting research demonstrates striking differences between cell lines and clinical TNBC tumors, disconnecting bench research and actual clinical responses. In this review, we discuss the limitations of cell lines and the importance of using patients' tumors for translational research, and highlight the usage of patient-derived xenograft (PDXs) models that have emerged as a clinically relevant platform for preclinical studies. PDX tumors possess tumor heterogeneity with similar cellular, molecular, genetic and epigenetic properties akin to those found within patients' tumors. Moreover, PDX and clinical tumors possess abnormal vasculature with higher blood vessel permeability, a feature that is not always demonstrated in in vivo cell line xenografts. Development of clinically relevant, novel drug nanoparticles capable of accumulating in PDX tumors through the enhanced permeability and retention effect in tumor vasculature may lead to new and effective TNBC treatments. PMID- 29348907 TI - Microsatellite stability and mismatch repair proficiency in nasopharyngeal carcinoma may not predict programmed death-1 blockade resistance. AB - The US FDA granted accelerated approval to pembrolizumab for microsatellite instability-high and mismatch repair deficient cancers. The response of programmed death-1 blockade in mismatch repair proficiency (pMMR) colorectal cancer is very poor, however, whether such treatment is effective in pMMR nasopharyngeal carcinoma (NPC) remains unknown. We report a case of a 51-year-old man with NPC. PET-CT scan revealed a space-occupying lesion in the left lung, and the pathologic result confirmed the occupying lesion originated from NPC. Meanwhile, both immunohistochemistry and PCR revealed that the occupying lesion belonged to pMMR NPC. The lung lesions largely shrunk after chemoradiotherapy. One year later, MRI showed brain occupancy, and brain lesion resection surgery was performed subsequently. The resected tissue was also validated to be the metastatic lesion from NPC. After one month, the patient was examined again by PET-CT, which showed multiple metastases in the liver, pelvis and adrenal gland. Since January 2017, the patient has been treated with pembrolizumab therapy. After five courses of treatment, both PET-CT and blood testing were repeated and demonstrated that metastases and serum Epstein-Barr virus DNA almost completely disappeared. We provide the first report that pembrolizumab has a confirmed objective response to microsatellite stability and pMMR NPC, and two biomarkers may not be sufficient to identify patients who might be resistant to such treatment in NPC. PMID- 29348908 TI - Correlation Clustering of Stable Angina Clinical Care Patterns for 506 Thousand Patients. AB - Objectives: Our goal was to apply statistical and network science techniques to depict how the clinical pathways of patients can be used to characterize the practices of care providers. Methods: We included the data of 506,087 patients who underwent procedures related to ischemic heart disease. Patients were assigned to one of the 136 primary health-care centers using a voting scheme based on their residence. The clinical pathways were classified, and the spectrum of the pathway types was computed for each center, then a network was built with the centers as nodes and spectrum correlations as edge weights. Then Louvain clustering was used to group centers with similar pathway spectra. Results: We identified 3 clusters with rather distinct characteristics that occupy quite compact spatial areas, though no geographical information was used in clustering. Network analysis and hierarchical clustering show the dominance of medical university clinics in each cluster. Conclusion: Though clinical guidelines provide a uniform regulation for medical decisions, doctors have great freedom in daily clinical practice. This freedom leads to regional preferences of certain clinical pathways, the intercenter professional links, and geographical locality and coupled with quantifiable consequences in terms of care costs and periprocedural risk of patients. PMID- 29348909 TI - Functionalized cationic [4]helicenes with unique tuning of absorption, fluorescence and chiroptical properties up to the far-red range. AB - Unprecedented regioselective post-functionalization of racemic and enantiopure cationic diaza [4]helicenes is afforded. The peripheral auxochrome substituents allow a general tuning of the electrochemical, photophysical and chiroptical properties of the helical dyes (26 examples). For instance, electronic absorption and circular dichroism are modulated from the orange to near-infrared spectral range (575-750 nm), fluorescence quantum efficiency is enhanced up to 0.55 (631 nm) and circularly polarized luminescence is recorded in the red (|glum| ~ 10-3). PMID- 29348910 TI - Determinants of Colour Constancy and the Blue Bias. AB - We investigated several sensory and cognitive determinants of colour constancy across 40 illumination hues. In the first experiment, we measured colour naming for the illumination and for the colour induced by the illumination on the colorimetric grey. Results confirmed that the induced colours are approximately complementary to the colour of the illumination. In the second experiment, we measured colour constancy using achromatic adjustments. Average colour constancy was perfect under the blue daylight illumination and decreased in colour directions away from the blue daylight illumination due to undershooting and a strong blue bias. Apart from this blue bias, colour constancy was not related to illumination discrimination and to chromatic detection measured previously with the same setup and stimuli. We also observed a strong negative relationship between the degree of colour constancy and the consensus of naming the illumination colour. Constancy coincided with a low naming consensus, in particular because bluish illumination colours were sometimes seen as achromatic. Blue bias and category consensus alone explained >68%, and all determinants together explained >94% of the variance of achromatic adjustments. These findings suggest that colour constancy is optimised for blue daylight. PMID- 29348911 TI - Reduction of Flicker in Four-Stroke Motion of Color Images. AB - When two sequential video frames extracted from a single video clip are followed by the negative of the two frames, a viewer often experiences a visual illusion whereby a scene in the frames continuously moves in a single direction (four stroke apparent motion). To create a four-stroke apparent motion display, the image intensities of the whole of the second pair of images are reversed. However, this intensity reversal creates a strong impression of flicker that can be undesirable for comfortable viewing. This study reports that four-stroke apparent motion can be induced by only reversing the luminance intensities in those spatial areas which contain motion signals in high-pass filtered images. This use of only a partial reversal of image intensities greatly reduces the apparent flicker in the display while retaining motion perception. PMID- 29348913 TI - Complications during removal of stainless steel versus titanium nails used for intramedullary nailing of diaphyseal fractures of the tibia. AB - Objectives: Intramedullary nailing is the treatment of choice for fractures of the tibial shaft, which might necessitate the nail removal due to complications in the long-term. Although considered as a low-risk procedure, intramedullary nail removal is also associated with certain complications. Here, we compared the most commonly used stainless steel and titanium nails with respect to the complications during removal and clinical outcome for intramedullary nailing of diaphyseal fractures of the tibia. Patients and methods: Sixty-two patients (26 females, 36 males) were included in this retrospective study. Of the removed nails, 24 were of stainless steel and 38 of titanium. Preoperative and intraoperative parameters, such as implant discomfort, anterior knee pain, operating time and amount of bleeding, and postoperative outcomes were evaluated for each patient. Results: Titanium nail group had more, but not statistically significant, intraoperative complications than stainless steel group during the removal of nails (p = .4498). Operating time and amount of intraoperative bleeding were significantly higher in titanium group than stainless steel group (p = .0306 and p < .001, respectively). Preoperative SF-36 physical component and KSS scores were significantly lower in patients who had removal of titanium nails than those of stainless steel nails, whereas there was no difference in terms of postoperative SF-36 and KSS scores. Conclusion: In conclusion, although greater bone contact with titanium increases implant stability, nail removal is more difficult, resulting in more longer surgical operation and more intraoperative bleeding. Therefore, we do not recommend titanium nail removal in asymptomatic patients. PMID- 29348912 TI - Genomic and molecular control of cell type and cell type conversions. AB - Organisms are made of a limited number of cell types that combine to form higher order tissues and organs. Cell types have traditionally been defined by their morphologies or biological activity, yet the underlying molecular controls of cell type remain unclear. The onset of single cell technologies, and more recently genomics (particularly single cell genomics), has substantially increased the understanding of the concept of cell type, but has also increased the complexity of this understanding. These new technologies have added a new genome wide molecular dimension to the description of cell type, with genome-wide expression and epigenetic data acting as a cell type 'fingerprint' to describe the cell state. Using these genomic fingerprints cell types are being increasingly defined based on specific genomic and molecular criteria, without necessarily a distinct biological function. In this review, we will discuss the molecular definitions of cell types and cell type control, and particularly how endogenous and exogenous transcription factors can control cell types and cell type conversions. PMID- 29348914 TI - Exploring health insurance services in Sudan from the perspectives of insurers. AB - Background: It has been 20 years since the introduction of health insurance in Sudan. This study was the first one that explored health insurance services in Sudan from the perspectives of the insurers. Methods: This was a qualitative, exploratory, interview study. The sampling frame was the list of Social Health Insurance and Private Health Insurance institutions in Sudan. Participants were selected from the four Social Health Insurance institutions and from five Private Health Insurance companies. The study was conducted in January and February 2017. In-depth individual interviews were conducted with a convenient sample of key executives from the different health insurers. Ideas and themes were identified and analysed using thematic analysis. Results: The result showed that universal coverage was not achieved despite long time presence of Social Health Insurance and Private Health Insurance in Sudan. All participants described their services as comprehensive. All participants have good perception of the quality of the services they provide, although none of them investigated customer satisfaction. The main challenges facing Social Health Insurance are achieving universal coverage, ensuring sustainability and recruitment of the informal sector and self employed population. Consumers' affordability of the premiums is the main obstacle for Private Health Insurance, while rising healthcare cost due to economic inflation is a challenge facing both Social Health Insurance and Private Health Insurance. Conclusion: In spite of the presence of Social Health Insurance and Private Health Insurance in Sudan, the country is still far from achieving universal coverage. Moreover, the sustainability of health insurance is questionable. The main reasons include low governmental financial resources and lack of affordability by beneficiaries especially for Private Health Insurance. This necessitates finding solutions to improve them or trying other types of health insurance. The quality of services provided by Social Health Insurance and Private Health Insurance was described as good, but no insurance in Sudan measured customer satisfaction as yet. PMID- 29348915 TI - Extended posterior approach for huge popliteal aneurysm extended to superficial femoral artery. AB - Objectives: Generally, popliteal artery aneurysms have been addressed surgically by a medial, posterior, or lateral approach. We have designed a new posterior approach that exposes the superficial femoral artery and entire popliteal artery without dividing any muscles in a just prone position. Methods and results: A 72 year old man with huge popliteal aneurysm extended to superficial femoral artery was admitted to our hospital. Surgery was performed due to a high risk of rupture. An S-shaped skin incision was made in the popliteal fossa. We could not expose the proximal side of the giant aneurysm proximal to the foramen of the adductor magnus. We extended the skin incision to the proximal and exfoliated the medial side of semitendinosus muscle. We could expose the superficial femoral artery in this approach like in a medial approach. We could perform the interposition of great saphenous vein. Conclusion: The advantages of this approach allowed for entire exposure of the popliteal aneurysm in the same patient's position when we perform aneurysmectomy and bypass. It is possible for this approach to provide easy access to the superficial femoral artery proximal to the adductor hiatus and distal below-knee popliteal artery including the tibioperoneal trunk. PMID- 29348916 TI - An intravascular papillary endothelial hyperplasia of the hand radiologically mimicking a hemangiopericytoma: A case report and literature review. AB - Intravascular papillary endothelial hyperplasia is a rare benign vascular lesion of the skin and subcutaneous tissues, characterized by a reactive proliferation of endothelial cells that can present de novo in normal blood vessels (primary intravascular papillary endothelial hyperplasia), but it can also develop from a pre-existing vascular process (type II intravascular papillary endothelial hyperplasia), or it can arise in an extravascular location from a post-traumatic haematoma. The differential diagnosis between intravascular papillary endothelial hyperplasia and malignant vascular tumours can be challenging, due to the lacking of a specific radiologic description. We present a case of intravascular papillary endothelial hyperplasia of the hand radiologically mimicking a hemangiopericytoma. PMID- 29348917 TI - Refractory actinomycosis of the humerus. AB - Actinomycosis is a chronic, opportunistic infection caused by Actinomyces species, such as Actinomyces bacillus. Actinomycosis in long bones is very rare. To the best of our knowledge, isolated primary actinomycosis of the humerus is rarely reported in literature. We present a rare case of a refractory primary actinomycosis of the humerus. A 66-year-old man with no history of concomitant conditions was admitted to our hospital with a history of a tumour on the distal third of the left arm as a result of a closed trauma without fracture 20 years before. Pathological anatomy samples showed the presence of Actinomyces. Cultures were subjected to a prolonged incubation of 21 days under aerobic and anaerobic conditions and were always negative. He underwent several surgical procedures and received long-term antibiotic therapy with poor outcome. Primary actinomycosis in long bones is uncommon. Diagnosis may be challenging: considering the small number of case studies reported in the literature, symptoms are not specific, and the organism is difficult to isolate. Antibiotic treatment may not be sufficient to improve the clinical condition, and surgical alternatives should be considered. PMID- 29348918 TI - Safety and timing of resuming dabigatran after major gastrointestinal bleeding reversed by idarucizumab. AB - The recent introduction of direct oral anticoagulants, including rivaroxaban, dabigatran, apixaban, and edoxaban, for the acute treatment and secondary prevention of venous thromboembolism and in atrial fibrillation has been shown to provide greater clinical benefit than oral vitamin K antagonists. However, direct oral anticoagulants are associated with adverse events, the most common being major bleeding; such events require the reversal of the anticoagulant effects by specific agents. In this case report, we describe an 87-year-old female with atrial fibrillation treated with dabigatran who had massive rectal bleeding. Idarucizumab 5 g (2 * 2.5 g/50 mL) was successfully used to reverse dabigatran effect; subsequent to this, treatment with dabigatran was resumed, and there were no further bleeding events. This suggests that dabigatran can be safely restarted after major bleeding, but this outcome needs to be confirmed in studies involving larger groups of patients. PMID- 29348919 TI - Thoracic stent graft placement for repair of iatrogenic aortic injury secondary to sheath placement during pacemaker insertion. AB - We describe the inadvertent cannulation of the proximal descending thoracic aortic stent with a five French sheath during attempted pacemaker placement in an 88- year-old male. The injury was managed successfully by the percutaneous placement of a thoracic aortic stent graft with good outcome. Our case highlights the feasibility of managing this uncommon injury with this technique. PMID- 29348920 TI - Wiskott-Aldrich syndrome that was initially diagnosed as immune thrombocytopenic purpura secondary to a cytomegalovirus infection. AB - Wiskott-Aldrich syndrome is a rare X-linked recessive disease resulting from variations in the WAS gene. Wiskott-Aldrich syndrome is sometimes difficult to differentiate from immune thrombocytopenic purpura. A 2-month-old boy was admitted to our hospital for purpura and thrombocytopenia. His mean platelet volume was reported to be normal. Treatment with intravenous immunoglobulins failed to improve the patient's platelet count. Subsequently, an acute cytomegalovirus infection was confirmed by serological testing and antigenemia. The patient was diagnosed with immune thrombocytopenic purpura secondary to a cytomegalovirus infection. However, based on the patient's clinical course and the refractoriness of his condition, Wiskott-Aldrich syndrome was strongly suspected. Through direct sequencing of the genomic DNA of the Wiskott-Aldrich syndrome protein (WASP) gene, we identified a novel missense mutation in exon 3 of the patient's WASP gene (c. 343 C>T, p. H115T), and the patient was diagnosed with Wiskott-Aldrich syndrome at 3 months after onset. Children with Wiskott Aldrich syndrome are often initially diagnosed with immune thrombocytopenic purpura, which can lead to inappropriate treatment and delays to life-saving definitive therapy. Our findings imply that Wiskott-Aldrich syndrome should be considered as a differential diagnosis in cases of refractory immune thrombocytopenic purpura combined with a cytomegalovirus infection. PMID- 29348921 TI - Genetic characteristics of VanA-type vancomycin-resistant Enterococcus faecalis and Enterococcus faecium in Cuba. AB - VanA-type vancomycin-resistant enterococci isolates from bloodstream infections in Cuba were genetically characterized. Enterococcus faecalis isolates were assigned to sequence type (ST) 28, closely related to Eastern Europe, while Enterococcus faecium belonged to ST262, ST656 and ST1349, and showed different genetic profiles. PMID- 29348922 TI - Taxonogenomic description of four new Clostridium species isolated from human gut: 'Clostridium amazonitimonense', 'Clostridium merdae', 'Clostridium massilidielmoense' and 'Clostridium nigeriense'. AB - Culturomics investigates microbial diversity of the human microbiome by combining diversified culture conditions, matrix-assisted laser desorption/ionization time of-flight mass spectrometry and 16S rRNA gene identification. The present study allowed identification of four putative new Clostridium sensu stricto species: 'Clostridium amazonitimonense' strain LF2T, 'Clostridium massilidielmoense' strain MT26T, 'Clostridium nigeriense' strain Marseille-P2414T and 'Clostridium merdae' strain Marseille-P2953T, which we describe using the concept of taxonogenomics. We describe the main characteristics of each bacterium and present their complete genome sequence and annotation. PMID- 29348923 TI - Cervicofacial lymphadenitis due to Mycobacterium mantenii: rapid and reliable identification by MALDI-TOF MS. PMID- 29348924 TI - Mortality and Hospitalizations in Intensive Dialysis: A Systematic Review and Meta-Analysis. AB - Background: Survival and hospitalization are critically important outcomes considered when choosing between intensive hemodialysis (HD), conventional HD, and peritoneal dialysis (PD). However, the comparative effectiveness of these modalities is unclear. Objective: We had the following aims: (1) to compare the association of mortality and hospitalization in patients undergoing intensive HD, compared with conventional HD or PD and (2) to appraise the methodological quality of the supporting evidence. Data Sources: MEDLINE, Embase, ISI Web of Science, CENTRAL, and nephrology conference abstracts. Study Eligibility Participants and Interventions: We included cohort studies with comparator arm, and randomized controlled trials (RCTs) with >50% of adult patients (>=18 years) comparing any form of intensive HD (>4 sessions/wk or >5.5 h/session) with any form of chronic dialysis (PD, HD <=4 sessions/wk or <=5.5 h/session), that reported at least 1 predefined outcome (mortality or hospitalization). Methods: We used the GRADE approach to systematic reviews and quality appraisal. Two reviewers screened citations and full-text articles, and extracted study-level data independently, with discrepancies resolved by consensus. We pooled effect estimates of randomized and observational studies separately using generic inverse variance with random effects models, and used fixed-effects models when only 2 studies were available for pooling. Predefined subgroups for the intensive HD cohorts were classified by nocturnal versus short daily HD and home versus in center HD. Results: Twenty-three studies with a total of 70 506 patients were included. Of the observational studies, compared with PD, intensive HD had a significantly lower mortality risk (hazard ratio [HR]: 0.67; 95% confidence interval [CI]: 0.53-0.84; I2 = 91%). Compared with conventional HD, home nocturnal (HR: 0.46; 95% CI: 0.38-0.55; I2 = 0%), in-center nocturnal (HR: 0.73; 95% CI: 0.60-0.90; I2 = 57%) and home short daily (HR: 0.54; 95% CI: 0.31-0.95; I2 = 82%) intensive regimens had lower mortality. Of the 2 RCTs assessing mortality, in-center short daily HD had lower mortality (HR: 0.54; 95% CI: 0.31 0.93), while home nocturnal HD had higher mortality (HR: 3.88; 95% CI: 1.27 11.79) in long-term observational follow-up. Hospitalization days per patient year (mean difference: -1.98; 95% CI: -2.37 to -1.59; I2 = 6%) were lower in nocturnal compared with conventional HD. Quality of evidence was similarly low or very low in RCTs (due to imprecision) and observational studies (due to residual confounding and selection bias). Limitations: The overall quality of evidence was low or very low for critical outcomes. Outcomes such as quality of life, transplantation, and vascular access outcomes were not included in our review. Conclusions: Intensive HD regimens may be associated with reduced mortality and hospitalization compared with conventional HD or PD. As the quality of supporting evidence is low, patients who place a high value on survival must be adequately advised and counseled of risks and benefits when choosing intensive dialysis. Practice guidelines that promote shared decision-making are likely to be helpful. PMID- 29348925 TI - Volume Estimates in Chronic Hemodialysis Patients by the Watson Equation and Bioimpedance Spectroscopy and the Impact on the Kt/Vurea calculation. AB - Background: Accurate assessment of total body water (TBW) is essential for the evaluation of dialysis adequacy (Kt/Vurea). The Watson formula, which is recommended for the calculation of TBW, was derived in healthy volunteers thereby leading to potentially inaccurate TBW estimates in maintenance hemodialysis recipients. Bioimpedance spectroscopy (BIS) may be a robust alternative for the measurement of TBW in hemodialysis recipients. Objectives: The primary objective of this study was to evaluate the accuracy of Watson formula-derived TBW estimates as compared with TBW measured with BIS. Second, we aimed to identify the anthropometric characteristics that are most likely to generate inaccuracy when using the Watson formula to calculate TBW. Finally, we derived novel anthropometric equations for the more accurate estimation of TBW. Design and Setting: This was a cross-sectional study of prevalent in-center HD patients at St Michael's Hospital. Patients: One hundred eighty-four hemodialysis patients (109 men and 75 women) were evaluated in this study. Measurements: Anthropometric measurements including weight, height, waist circumference, midarm circumference, and 4-site skinfold (biceps, triceps, subscapular, and suprailiac) thickness were measured; fat mass was measured using the formula by Durnin and Womersley. We measured TBW by BIS using the Body Composition Monitor (Fresenius Medical Care, Bad Homburg, Germany). Methods: We used the Bland-Altman method to calculate the difference between the TBW derived from the Watson method and the BIS. To derive new equations for TBW estimation, Pearson's correlation coefficients between BIS TBW (the reference test) and other variables were examined. We used the least squares regression analysis to develop parsimonious equations to predict TBW. Results: TBW values based on the Watson method had a high correlation with BIS TBW (correlation coefficients = 0.87 and P < .001). Despite the high correlation, the Watson formula overestimated TBW by 5.1 (4.5-5.8) liters and 3.8 (3.0-4.5) liters, in men and women, respectively. Higher fat mass and waist circumference (general and abdominal obesity) were correlated with the greater TBW overestimation by the Watson formula. We created separate equations for men and women based on weight and waist circumference. Limitations: The main limitation of our study was the lack of an external validation for our novel estimating equation. Furthermore, though BIS has been validated against traditional reference standards, our assumption that it represents the "gold standard" for body compartment assessment may be flawed. Conclusions: The Watson formula generally overestimates TBW in chronic dialysis recipients, particularly in patients with the highest waist circumference. Widespread reliance on the Watson formula for derivation of TBW may lead to the underestimation of Kt/Vurea.. PMID- 29348926 TI - A double-blind, placebo-controlled, single ascending-dose study of remyelinating antibody rHIgM22 in people with multiple sclerosis. AB - Objective: The objective of this paper is to assess, in individuals with clinically stable multiple sclerosis (MS), the safety, tolerability, pharmacokinetics (PK) and exploratory pharmacodynamics of the monoclonal recombinant human antibody IgM22 (rHIgM22). Methods: Seventy-two adults with stable MS were enrolled in a double-blind, randomized, placebo-controlled, single ascending-dose, Phase 1 trial examining rHIgM22 from 0.025 to 2.0 mg/kg. Assessments included MRI, MR spectroscopy, plasma PK, and changes in clinical status, laboratory values and adverse events for three months. The final cohort had additional clinical, ophthalmologic, CSF collection and exploratory biomarker evaluations. Participants were monitored for six months. Results: rHIgM22 was well tolerated with no clinically significant safety signals. Noncompartmental PK modeling demonstrated linear dose-proportionality both of Cmax and AUC0-Last. The steady-state apparent volume of distribution of approximately 58 ml/kg suggested primarily vascular compartmentalization. CSF:plasma rHIgM22 concentration increased from 0.003% on Day 2 for both 1.0 and 2.0 mg/kg to 0.056% and 0.586% for 1.0 and 2.0 mg/kg, respectively, on Day 29. No statistically significant treatment-related changes were observed in exploratory pharmacodynamic outcome measures included for the 21 participants of the extension cohort. Conclusions: Single doses of rHIgM22 were well tolerated and exhibited linear PK, and antibody was detected in the CSF. PMID- 29348927 TI - Improved cognitive performance and event-related potential changes following working memory training in patients with multiple sclerosis. AB - Background: Few studies of cognitive rehabilitation in multiple sclerosis (MS) have targeted working memory specifically. Objective: We examined the effects of n-back working memory training on cognitive performance and brain function in patients with MS. Methods: Patients with MS (n = 12) and healthy controls (HC; n = 12) underwent 20 sessions of n-back working memory training. Before and after training (pre- and posttest) cognitive event-related potential (ERP) measures were obtained during a 3-back task. In addition, a battery of cognitive tests was administered. Results: Following n-back training, both MS patients and HCs showed significant improvement on tests of working memory, processing speed, complex attention, and reasoning ability. MS and HCs also exhibited an enhancement of N2 ERP component amplitude, and earlier N2 and P3 latencies, following n-back training. Conclusions: Targeted training of working memory with the n-back task may improve cognitive function in MS. Enhancement of N2 ERP component amplitude and shorter N2 and P3 latency following training in patients with MS is consistent with plasticity of neural processes that are involved in working memory. PMID- 29348928 TI - Glaucomatocyclitic Crises May Occur in Patients with Narrow or Closed Angles. AB - Purpose: To report cases of glaucomatocyclitic crises and discuss the possibility of occurrence in patients with narrow or closed angles. Background: The prevalence of angle closure is much higher among Asians than among the Western population. Currently, there is no evidence for a direct relationship between the etiology and angle structure. Design: A retrospective and observational case series. Methods: We retrospectively collected data from nine adult patients (three males and six females) who were diagnosed with a glaucomatocyclitic crisis and a shallow anterior chamber over a 21-year period, from 1995 to 2016, at the Kaohsiung Medical University Hospital. A narrow angle was defined as a grade less than the Shaffer system grade II. Ophthalmic examinations, including anterior segment biomicroscopy, direct ophthalmoscopy, intraocular pressure measurements, anterior chamber reaction, visual field tests, and the grade of the anterior chamber angle according to the Shaffer system, were reviewed. Results: These patients experienced at least one typical unilateral ocular hypertensive episode that fulfilled the criteria of a glaucomatocyclitic crisis without the angle feature. All patients had gonioscopically narrow or closed angles with or without peripheral anterior synechiae. Conclusions: The coexistence of narrow or closed angles and a glaucomatocyclitic crisis is possible, especially in patients of Asian descent. In patients with shallow anterior chambers, a glaucomatocyclitic crisis may be a cause of acute glaucoma episodes. PMID- 29348929 TI - The Influence of Environmental Factors on the Prevalence of Myopia in Poland. AB - Purpose: In the paper, we describe and discuss the results of epidemiological studies concerning myopia carried out in Poland. Materials and Methods: Results from the examination of 5601 Polish school children and students (2688 boys and 2913 girls) aged 6 to 18 years were analyzed. The mean age was 11.9 +/- 3.2 years. Every examined student had undergone the following examinations: distance visual acuity testing, cover test, anterior segment evaluation, and cycloplegic retinoscopy after instillation of 1% tropicamide, and a questionnaire was taken. Results: We have found that (1) intensive near work (writing, reading, and working on a computer) leads to a higher prevalence of myopia, (2) watching television does not influence the prevalence of myopia, and (3) being outdoors decreases the prevalence of myopia. Conclusions: The results of our study point to insufficiency of accommodation contributing to the pathogenesis of myopia. PMID- 29348930 TI - Analysis of Genetic Mutations in a Cohort of Hereditary Optic Neuropathy in Shanghai, China. AB - Purpose: To evaluate the clinical classification and characteristics of hereditary optic neuropathy patients in a single center in China. Method: Retrospective case study. Patients diagnosed with hereditary optic neuropathy between January 2014 and December 2015 in the neuro-ophthalmology division in Shanghai Eye and ENT Hospital of Fudan University were recruited. Clinical features as well as visual field, brain/orbital MRI, and spectrum domain optical coherence tomography (SD-OCT) were analyzed. Results: Eighty-two patients diagnosed by gene test were evaluated, including 66 males and 16 females. The mean age of the patients was 19.4 years (range, 5-46 years). A total of 158 eyes were analyzed, including 6 unilateral, 61 bilateral, and 15 sequential. The median duration of the disease was 0.5 year (range, 0.1-20 years). Genetic test identified 68 patients with Leber hereditary optic neuropathy, 9 with dominant optic neuropathy, and 2 with a Wolfram gene mutation. There was also one case of hereditary spastic paraplegia, spinocerebellar ataxia, and polymicrogyria with optic nerve atrophy, respectively. Conclusion: Leber hereditary optic neuropathy is the most common detected type of hereditary optic neuropathy in Shanghai, China. The detection of other autosomal mutations in hereditary optic neuropathy is limited by the currently available technique. PMID- 29348931 TI - Detection of Silent Type I Choroidal Neovascular Membrane in Chronic Central Serous Chorioretinopathy Using En Face Swept-Source Optical Coherence Tomography Angiography. AB - Purpose: To evaluate the efficacy of SS-OCTA in the detection of silent CNV secondary to chronic CSCR compared to that of FFA and SS-OCT. Patients and Methods: A retrospective observational case series reviewing the clinical data, FFA, SS-OCT, and SS-OCTA images of patients with chronic CSCR, and comparing the findings. SS-OCTA detects the CNV complex and delineates it from the surrounding pathological features of chronic CSCR by utilizing the blood flow detection algorithm, OCTARA, and the ultrahigh-definition B-scan images of the retinal microstructure generated by swept-source technology. The bivariate correlation procedure was used for the calculation of the correlation matrix of the variables tested. Results: The study included 60 eyes of 40 patients. Mean age was 47.6 years. Mean disease duration was 14.5 months. SS-OCTA detected type 1 CNV in 5 eyes (8.3%). In all 5 eyes, FFA and SS-OCT were inconclusive for CNV. The presence of foveal thinning, opaque material beneath irregular flat PED, and increased choroidal thickness in chronic CSCR constitutes a high-risk profile for progression to CNV development. Conclusion: Silent type 1 CNV is an established complication of chronic CSCR. SS-OCTA is indispensable in excluding CNV especially in high-risk patients and whenever FFA and SS-OCT are inconclusive. PMID- 29348932 TI - Long-Term Follow-Up in Children with Anisocoria: Cocaine Test Results and Patient Outcome. AB - Background: Evaluation of anisocoria including pharmacological testing for Horner's syndrome in the pediatric population is challenging in view of potential serious underlying disease. We describe cocaine test results, outcome of systemic investigation, and long-term follow-up in children with anisocoria. Methods: Retrospective review of medical records and phone interview of consecutive pediatric patients (<18 years old) who underwent cocaine testing from August 2007 to July 2015 at a tertiary referral centre. Results: A total of 35 patients were included with a positive, negative, or inconclusive cocaine test in 12/35, 19/35, and 4/35, respectively. Systemic investigation was performed in 11 of the patients with a positive and in 2 of the patients with an inconclusive cocaine test result. Mediastinal Hodgkin lymphoma was found in one patient with an inconclusive cocaine test result. Two other cases were presumably related to birth trauma and surgical trauma. None of the other children further developed any pathology during the follow-up period of 34.8 months (range 0-106.6). Conclusions: In most children with anisocoria and a positive cocaine test result, systemic investigation did not reveal any underlying etiology. The only malignant disease was diagnosed in a patient with a suspicion of Horner's syndrome but with an inconclusive cocaine test result in our cohort. PMID- 29348933 TI - Prevalence and Associated Risk Factors of Hypertension: A Cross-Sectional Study in Urban Varanasi. AB - Hypertension is a major public health problem and important area of research due to its high prevalence and being major risk factor for cardiovascular diseases and other complications. Objectives. (1) To assess the prevalence of hypertension and its associated factors and (2) to estimate awareness, treatment, and adequacy of control of hypertension among study subjects. Methods and Materials. A community based cross-sectional study with multistage sampling design was conducted among urban population of Varanasi. A modified WHO STEPS interview schedule on 640 study subjects aged 25-64 years was used. Results. The prevalence of hypertension was 32.9% (male: 40.9%, female: 26.0%). Mean systolic and diastolic BP were 124.25 +/- 15.05 mmHg and 83.45 +/- 9.49 mmHg, respectively. Higher odds of being hypertensive were found in male subjects, eldest age group, married subjects, subjects of upper socioeconomic status, illiterate subjects, and retired subjects. Tobacco and alcohol consumption, overweight, obesity, and abdominal obesity were also associated with hypertension. Out of the total hypertensive 211 subjects, only 81 (38.4%) were aware about their hypertension status; out of those, 57 (70.4%) were seeking treatment and 20 (35.08%) had their blood pressure adequately controlled. Conclusion. Around one-third of the subjects were hypertensive and half of the study subjects were prehypertensive in this area. The awareness, treatment, and control of high blood pressure were also very low. PMID- 29348934 TI - "In Silico" Characterization of 3-Phytase A and 3-Phytase B from Aspergillus niger. AB - Phytases are used for feeding monogastric animals, because they hydrolyze phytic acid generating inorganic phosphate. Aspergillus niger 3-phytase A (PDB: 3K4Q) and 3-phytase B (PDB: 1QFX) were characterized using bioinformatic tools. Results showed that both enzymes have highly conserved catalytic pockets, supporting their classification as histidine acid phosphatases. 2D structures consist of 43% alpha-helix, 12% beta-sheet, and 45% others and 38% alpha-helix, 12% beta-sheet, and 50% others, respectively, and pI 4.94 and 4.60, aliphatic index 72.25 and 70.26 and average hydrophobicity of -0,304 and -0.330, respectively, suggesting aqueous media interaction. Glycosylation and glycation sites allowed detecting zones that can affect folding and biological activity, suggesting fragmentation. Docking showed that H59 and H63 act as nucleophiles and that D339 and D319 are proton donor residues. MW of 3K4Q (48.84 kDa) and 1QFX (50.78 kDa) is similar; 1QFX forms homodimers which will originate homotetramers with several catalytic center accessible to the ligand. 3K4Q is less stable (instability index 45.41) than 1QFX (instability index 33.66), but the estimated lifespan for 3K4Q is superior. Van der Waals interactions generate hydrogen bonds between the active center and O2 or H of the phytic acid phosphate groups, providing greater stability to these temporal molecular interactions. PMID- 29348935 TI - Effect of Male Involvement on the Nutritional Status of Children Less Than 5 Years: A Cross Sectional Study in a Rural Southwestern District of Uganda. AB - Background: Undernutrition among children less than 5 years is still a public health concern in most developing countries. Fathers play a critical role in providing support in improving maternal and child health. There is little studied on male involvement and its measurement in child nutrition; therefore, this paper explores the level of male involvement in child feeding and its association with the nutritional status of the children less than 5 years of age. Methods: A cross sectional study among 346 households, 3 focus group discussions, and 4 key informant interviews were conducted in one rural district in Uganda. Adjusted odds ratios (aORs) and 95% confidence intervals (95% CI) of associated factors were estimated and focus group discussions and in-depth interviews were conducted and summarized into themes. Results: The study revealed the highest percentage of the males provided money to buy food for the children (93.6%), and only 9.8% have ever accompanied mothers to young child clinics. Conclusion: In this study, most males were involved in buying food for their children, and providing money for transport to young child clinics was associated with normal nutritional status of children less than 5 years in the study area. PMID- 29348936 TI - Guiding Inspiratory Flow: Development of the In-Check DIAL G16, a Tool for Improving Inhaler Technique. AB - Portable inhalers are divisible into those that deliver medication by patient triggering (pMDIs: a gentle slow inhalation) and those that use the patient's inspiratory effort as the force for deaggregation and delivery (DPIs: a stronger deeper inspiratory effort). Patient confusion and poor technique are commonplace. The use of training tools has become standard practice, and unique amongst these is an inspiratory flow meter (In-Check) which is able to simulate the resistance characteristics of different inhalers and, thereby, guide the patient to the correct effort. In-Check's origins lie in the 1960s peak expiratory flow meters, the development of the Mini-Wright peak flow meter, and inspiratory flow assessment via the nose during the 1970s-1980s. The current device (In-Check DIAL G16) is the third iteration of the original 1998 training tool, with detailed and ongoing assessments of all common inhaler resistances (including combination and breath-actuated inhaler types) summarised into resistance ranges that are preset within the device. The device works by interpolating one of six ranges with the inspiratory effort. Use of the tool has been shown to be contributory to significant improvements in asthma care and control, and it is being advocated for assessment and training in irreversible lung disease. PMID- 29348937 TI - Work Change in Multiple Sclerosis as Motivated by the Pursuit of Illness-Work Life Balance: A Qualitative Study. AB - Individuals with multiple sclerosis have a tendency to make early decisions for work change, even in reversible, episodic, or mild disease stages. To better understand how a multiple sclerosis (MS) diagnosis influences perceptions of work and motivations for work changes, we conducted a hermeneutic phenomenology study to explore the work lives of ten individuals with MS in Malaysia. The interpretive analysis and cumulative narratives depict an overarching change in their concept of ideal work and life aspirations and how participants make preemptive work changes to manage illness-work-life futures in subjectively meaningful ways. Discussions on their integrated pursuit of finding dynamic and subjective illness-work-life balance include reconciling the problem of hard work and stress on disease activity and progress, making positive lifestyle changes as health management behaviour, and the motivational influence of their own life and family roles: the consideration of their spouses, parents, and children. At an action level, work change was seen as moral and necessary for the management of illness futures. Our findings contribute insights on how individual perceptions and holistic life management decisions contribute to on-going and disrupted work trajectories, which can inform practice and policy on early interventions to support continued employment. PMID- 29348938 TI - Treatment of Anemia of Chronic Disease with True Iron Deficiency in Pregnancy. AB - Objective: We assess and compare the efficacy of anemia treatment in pregnant women with anemia of chronic disease with true iron deficiency and in women with iron deficiency anemia. Study Design: Fifty patients with moderate anemia (hemoglobin 8.0-9.9 g/dl) and iron deficiency (ferritin < 15 MUg/l) were treated in the Anemia Clinic at the Department of Obstetrics. Results: All patients showed stimulation of erythropoiesis as evidenced by an increase in reticulocyte count at day eight of therapy and showed an increase in hemoglobin and hematocrit at the end of therapy (p < 0.001). The target hemoglobin (>=10.5 g/dl) was achieved in 45/50 women (90%). 12 patients showed anemia of chronic disease with true iron deficiency (12/50; 24%). Seven women (7/12; 59%) with anemia of chronic disease and iron deficiency responded well to anemia treatment. 50% of women with anemia of chronic disease and iron deficiency (3/6) responded well to intravenous iron, and 67% (4/6) responded well to the combination of intravenous iron and recombinant human erythropoietin. Conclusion: Because of frequent true iron deficiency in pregnant women with anemia of chronic disease, anemia of chronic disease in pregnancy is often falsely diagnosed as iron deficiency anemia. PMID- 29348939 TI - Effect of Insoles with a Toe-Grip Bar on Toe Function and Standing Balance in Healthy Young Women: A Randomized Controlled Trial. AB - Objective: The aim of this randomized controlled study was to investigate the effects of insoles with a toe-grip bar on toe function and standing balance in healthy young women. Methods: Thirty female subjects were randomly assigned to an intervention group or a control group. The intervention group wore shoes with insoles with a toe-grip bar. The control group wore shoes with general insoles. Both groups wore the shoes for 4 weeks, 5 times per week, 9 hours per day. Toe grip strength, toe flexibility, static balance (total trajectory length and envelope area of the center of pressure), and dynamic balance (functional reach test) were measured before and after the intervention. Results: Significant interactions were observed for toe-grip strength and toe flexibility (F = 12.53, p < 0.01; F = 5.84, p < 0.05, resp.), with significant improvement in the intervention group compared with that in the control group. Post hoc comparisons revealed that both groups showed significant improvement in toe-grip strength (p < 0.01 and p < 0.05, resp.), with higher benefits observed for the intervention group (p < 0.01). Conversely, no significant interaction was observed in the total trajectory length, envelope area, and functional reach test. Conclusions: This study suggests that insoles with a toe-grip bar contribute to improvements in toe-grip strength and toe flexibility in healthy young women. PMID- 29348940 TI - Perceptions and Practices of the Iranian Population regarding Skin Cancers: A Literature Review. AB - Despite being preventable, more than 15% of all cancer cases in Iran occur in the skin, making them the most commonly diagnosed malignancy in the country. The purpose of this study is to gain an insight into the current skin cancer related knowledge, attitudes, beliefs, and practices among the Iranian population. A systematic computer based literature search was conducted using databases for articles published through April 2017. Research studies included those that measured skin cancer or sun protection related knowledge, attitudes, beliefs, and behaviors in different Iranian population groups. Exclusion criteria for the articles included (1) irrelevant topics to the review article's aim, (2) articles that focused on the treatment of skin cancers instead of prevention practices, and (3) similar studies conducted on populations not indigenous to Iran. A total of 25 articles that met the eligibility criteria were included in the review. Predominant data were collected via questionnaires. Skin cancer related knowledge varied from low to high across the studies. Moreover, there was a pattern of low perceived skin cancer susceptibility and severity. Overall, there was low usage of sun protection methods among the Iranian population. The findings of this study show that efforts to prevent skin cancer are needed. Education concerning the dangers of sun exposure as well as strategies used to prevent or lower the risk of developing skin cancer should be stressed. PMID- 29348941 TI - The Immunoexpression of Glucocorticoid Receptors in Breast Carcinomas, Lactational Change, and Normal Breast Epithelium and Its Possible Role in Mammary Carcinogenesis. AB - The role of estrogen and progesterone receptors in breast cancer biology is well established. In contrast, other steroid hormones are less well studied. Glucocorticoids (GCs) are known to play a role in mammary development and differentiation; thus, it is of interest to attempt to delineate their immunoexpression across a spectrum of mammary epithelia. Aim. To delineate the distribution pattern of glucocorticoid receptors (GRs) in malignant versus nonmalignant epithelium with particular emphasis on lactational epithelium. Materials and Methods. Immunohistochemistry (IHC) for GRs was performed on archival formalin-fixed paraffin-embedded tissue blocks of 96 cases comprising 52 invasive carcinomas, 21 cases with lactational change, and 23 cases showing normal mammary tissue histology. Results. Results reveal an overexpression of GRs in mammary malignant epithelium as compared to both normal and lactational groups individually and combined. GR overexpression is significantly more pronounced in HER-2-negative cancers. Discussion. This is the first study to compare GR expression in human lactating epithelium versus malignant and normal epithelium. The article discusses the literature related to the pathobiology of GCs in the breast with special emphasis on breast cancer. Conclusion. The lactational epithelium did not show overexpression of GR, while GR was overexpressed in mammary NST (ductal) carcinoma, particularly HER-2-negative cancers. PMID- 29348942 TI - Molecular Signatures of Radiation Response in Breast Cancer: Towards Personalized Decision-Making in Radiation Treatment. AB - Recent advances in gene expression profiling have allowed for a more sophisticated understanding of the biology of breast cancers. These advances led to the development of molecular signatures that now allow clinicians to more individually tailor recommendations regarding the utility and necessity of systemic therapies for women with breast cancer. Indeed, these molecularly based tests have been incorporated into national and international best practice guidelines and are now part of routine practice. Similar, though slower, progress is being made in the development of molecular signatures predictive of radiation response and necessity for women with breast cancer. This article will discuss the history of radiation response signature development, the current state of these signatures under ongoing clinical development, the barriers to their clinical adoption, and upcoming changes and opportunities that may allow for the personalized radiation treatment recommendations enabled by the development of these signatures. PMID- 29348943 TI - Interhemispheric Pathways Are Important for Motor Outcome in Individuals with Chronic and Severe Upper Limb Impairment Post Stroke. AB - Background: Severity of arm impairment alone does not explain motor outcomes in people with severe impairment post stroke. Objective: Define the contribution of brain biomarkers to upper limb motor outcomes in people with severe arm impairment post stroke. Methods: Paretic arm impairment (Fugl-Meyer upper limb, FM-UL) and function (Wolf Motor Function Test rate, WMFT-rate) were measured in 15 individuals with severe (FM-UL <= 30/66) and 14 with mild-moderate (FM-UL > 40/66) impairment. Transcranial magnetic stimulation and diffusion weight imaging indexed structure and function of the corticospinal tract and corpus callosum. Separate models of the relationship between possible biomarkers and motor outcomes at a single chronic (>=6 months) time point post stroke were performed. Results: Age (DeltaR20.365, p = 0.017) and ipsilesional-transcallosal inhibition (DeltaR20.182, p = 0.048) explained a 54.7% (p = 0.009) variance in paretic WMFT rate. Prefrontal corpus callous fractional anisotropy (PF-CC FA) alone explained 49.3% (p = 0.007) variance in FM-UL outcome. The same models did not explain significant variance in mild-moderate stroke. In the severe group, k-means cluster analysis of PF-CC FA distinguished two subgroups, separated by a clinically meaningful and significant difference in motor impairment (p = 0.049) and function (p = 0.006) outcomes. Conclusion: Corpus callosum function and structure were identified as possible biomarkers of motor outcome in people with chronic and severe arm impairment. PMID- 29348945 TI - The Use of Adenosine to Enable Safe Implantation of Transcatheter Tricuspid Valve. AB - High precision is necessary during percutaneous transcatheter heart valve implantation. The precision of the implantation has been established by increasing the heart rate (usually to 200 beats per minute) to the point of significantly reduced cardiac output and thus minimizing valve movement. Routinely, this tachycardia is induced by rapid pacing. Here we report a case of failure to pace during valve-in-valve (VIV) Edwards Sapien XT implantation in the tricuspid valve position. Transient cardiac arrest was induced by intravenous adenosine injection enabling accurate valve implantation. PMID- 29348944 TI - A Longitudinal fMRI Research on Neural Plasticity and Sensory Outcome of Carpal Tunnel Syndrome. AB - Peripheral nerve compression is reported to induce cortical plasticity, which was well pictured by former researches. However, the longitudinal changes brought by surgical treatment are not clear. In this research, 18 subjects who suffered from bilateral carpal tunnel syndrome were evaluated using task-dependent fMRI and electromyography assessment before and after surgery. The third digit was tactually simulated by von Frey filaments. The results demonstrated that the pattern of activation was similar but a decreased extent of activation in the postcentral gyrus, inferior frontal lobe, superior frontal lobe, and parahippocampal gyrus after surgery was found. The correlation analysis showed a significant correlation between the decreased number of activated voxels and the improvement of EMG performance. This result implied a potential connection between fMRI measurement and clinical improvement. PMID- 29348946 TI - Group A Streptococci-Associated Necrotizing Fasciitis following Cat Bite in an Immunocompromised Patient. AB - Necrotizing soft tissue infections are characterized clinically by fulminant tissue destruction, systemic signs of toxicity, and high mortality. Accurate diagnosis and appropriate treatment must include early surgical intervention and antibiotic therapy. Mortality rate is very high and could be even higher in an immunocompromised host. We present a 57-year-old female with history of rheumatoid arthritis on oral corticosteroid and methotrexate therapy with painful swelling of the left hand following a cat bite that was diagnosed as having group A streptococcus pyogenes-associated necrotizing fasciitis. Treatment with ampicillin-sulbactam, Clindamycin, and surgical debridement was performed. In spite of all the adequate therapy she succumbed to death from streptococcal toxic shock and related complications after thirty-two days of treatment in intensive care unit. Necrotizing fasciitis is an uncommon but life-threatening complication in immunocompromised hosts. Tissue infections in cat bite wounds are commonly caused by pathogenic bacterium known as Pasteurella multocida. Group A streptococcal infections are not reported following cat bites. A high index of suspicion must be maintained to suspect group A streptococcal associated necrotizing fasciitis following cat bites and an early medical and surgical intervention should be made for any best possible outcome. PMID- 29348947 TI - Effects of Mifepristone on Nonalcoholic Fatty Liver Disease in a Patient with a Cortisol-Secreting Adrenal Adenoma. AB - Cushing syndrome (CS), a complex, multisystemic condition resulting from prolonged exposure to cortisol, is frequently associated with nonalcoholic fatty liver disease (NAFLD). In patients with adrenal adenoma(s) and NAFLD, it is essential to rule out coexisting endocrine disorders like CS, so that the underlying condition can be properly addressed. We report a case of a 49-year-old woman with a history of hypertension, prediabetes, dyslipidemia, biopsy-confirmed steatohepatitis, and benign adrenal adenoma, who was referred for endocrine work up for persistent weight gain. Overt Cushing features were absent. Biochemical evaluation revealed nonsuppressed cortisol on multiple 1-mg dexamethasone suppression tests, suppressed adrenocorticotropic hormone, and low dehydroepiandrosterone sulfate. The patient initially declined surgery and was treated with mifepristone, a competitive glucocorticoid receptor antagonist. In addition to improvements in weight and hypertension, substantial reductions in her liver enzymes were noted, with complete normalization by 20 weeks of therapy. This case suggests that autonomous cortisol secretion from adrenal adenoma(s) could contribute to the metabolic and liver abnormalities in patients with NAFLD. In conclusion, successful management of CS with mifepristone led to marked improvement in the liver enzymes of a patient with long-standing NAFLD. PMID- 29348948 TI - Granulomatous Pancreas: A Case Report of Pancreatic Sarcoid. AB - Sarcoidosis is a chronic, systemic, noncaseating granulomatous disease process of unknown etiology. Sarcoidosis most commonly manifests in the lungs; however, gastrointestinal manifestations can occur. If in the GI tract, it is almost always found in the liver. Solitary pancreatic lesions are extremely rare, with less than 50 documented cases found in the literature. We present a case of a 61 year-old female, with a past medical history of sarcoidosis, who presented to the ER with unexpected weight loss, scleral icterus, right upper quadrant pain, and epigastric and back pain. US and MRI found a dilated common bile duct and mild dilation of the pancreatic duct, as well as a focal prominence in the head of the pancreas surrounded by areas of atrophy. A pancreaticoduodenectomy procedure was performed and fresh frozen sections were taken. The pathologist made a diagnosis of nonnecrotizing granulomatous pancreatitis. Pancreatic sarcoid is often asymptomatic and a benign finding on autopsy; however, clinicians should be mindful of pancreatic involvement when working up differential diagnosis for pancreatic masses. PMID- 29348949 TI - Cetuximab-Associated Crescentic Diffuse Proliferative Glomerulonephritis. AB - Cetuximab-induced nephrotoxicity is very rare, occurring in less than 1% of colorectal cancer patients and not defined in other populations. We report a rare case of crescentic diffuse proliferative glomerulonephritis (GN) that developed in close temporal association with cetuximab treatment. A 65-year-old female recently completed chemotherapy with cetuximab treatment for moderately differentiated oral squamous cell carcinoma. She was admitted with acute renal failure and nephrotic-range proteinuria. Laboratory data showed serum creatinine of 6.6 mg/dl and urinalysis showed proteinuria, moderate hemoglobinuria, hyaline casts (41/LPF), WBC (28/HPF), and RBC (81/HPF). Serologic studies were negative for ANA, anti-GBM, ANCA, hepatitis B, and hepatitis C. Serum C3 and C4 level were normal. Renal biopsy showed crescentic diffuse proliferative GN with focal features of thrombotic microangiopathy. Patient was started on cyclophosphamide and steroids. Her renal function did not improve on day 8 and she was started on hemodialysis. Previous reports suggest that EGFR-targeting medications can possibly trigger or exacerbate an IgA-mediated glomerular process leading to renal failure. This case suggests that cetuximab therapy may have triggered or exacerbated a severe glomerular injury with an unfavorable outcome. Treating physicians should maintain a high degree of caution and monitor renal function in patients on EGFR inhibitors. PMID- 29348950 TI - Carotid Endarterectomy in a Patient with Severe Internal Carotid Artery Stenosis with Persistent Trigeminal Artery and Ischemia of the Anterior and Posterior Circulation. AB - Occurrence of cerebral ischemia in the posterior circulation as a result of severe internal carotid artery disease and persistent trigeminal artery is rare. An 81-year-old man with medical history of hypertension and ischemic stroke presented with dizziness, nausea, and mild dysarthria. Magnetic resonance imaging of the brain revealed acute infarcts in the left internal carotid artery territory. CT angiogram revealed a persistent trigeminal artery (PTA) and severe atherosclerosis. The patient developed new neurological symptoms and repeat imaging revealed new acute infarcts in the PTA distribution. After undergoing a left carotid endarterectomy with no complications, the patient was discharged to a skilled nursing facility with no recurrence of ischemic stroke. This case adds a rare complication of an infrequent vascular anomaly to the limited body of the literature. PMID- 29348951 TI - Prenatal Diagnosis of Thoracoschisis and Review of Literature. AB - Thoracoschisis is a rare congenital malformation characterized by herniation of the abdominal content through a defect in the thorax. There are previously 12 reported cases, most discussing the postnatal findings and management. Here we describe a case of left thoracoschisis with associated upper limb abnormality which was diagnosed antenatally with the aid of 3D ultrasound. PMID- 29348952 TI - Persistent Corneal Decompensation due to Anterior Dislocation of Soemmering Ring Cataract. AB - Purpose: We present a case of a patient with Soemmering ring after cataract surgery and a potential complication that can arise as a result of its presence. Observations: A patient with history of ruptured globe status after repair and lensectomy, complicated by aphakic secondary open angle glaucoma, was referred for management of second injury to the same eye. This injury resulted in Soemmering ring dislocation into the anterior chamber. The cortical material caused a significant increase in intraocular pressure and corneal decompensation. Surgical removal of the Soemmering ring and Ahmed glaucoma tube implant was performed with control of intraocular pressures; however corneal edema could not be reversed. Conclusions and Importance: This case report illustrates the serious consequences that can be caused by Soemmering rings without early surgical intervention. Care must be taken to completely remove cortical material during cataract surgery to prevent their formation. PMID- 29348953 TI - Multimodal Images of Acute Central Retinal Artery Occlusion. AB - Two illustrative cases of acute central retinal artery occlusion (CRAO) are presented with multimodal imaging, including fluorescein angiography (FA) and commercially available optical coherence tomography angiography (OCT-A). In both patients, retinal ischemia was imaged well using both FA and OCT-A, and the two imaging studies provided comparable pictures. OCT-A provides useful information for the diagnosis and management of patients with acute CRAO, without the need for dye injection. PMID- 29348954 TI - Managing an Acute and Chronic Periprosthetic Infection. AB - A case report of a 65-year-old female with a history of right total hip arthroplasty (THA) in 2007 and left THA in 2009 was presented. She consulted with our institution for the first time, on December 2013, for right hip pain and fistula on the THA incision. It was managed as a chronic infection, so a two stage revision was performed. First-time intraoperative cultures were positive for Staphylococcus aureus (3/5) and Proteus mirabilis (2/5). Three weeks after the second half of the review, it evolved with acute fever and pain in relation to right hip. No antibiotics were used, arthrocentesis was performed, and a coagulase-negative staphylococci multisensible was isolated at the 5th day. Since the germ was different from the first revision, it was decided to perform a one stage revision. One year after the first review, the patient has no local signs of infection and presents ESV and RPC in normal limits. The indication and management of periprosthetic infections are discussed. PMID- 29348955 TI - Pseudomonas aeruginosa Septic Arthritis and Osteomyelitis after Closed Reduction and Percutaneous Pinning of a Supracondylar Humerus Fracture: A Case Report and Review of the Literature. AB - Infectious complications of closed reduction and percutaneous pinning of supracondylar humerus fractures are exceedingly rare. Although postoperative Pseudomonas infection is a feared complication associated with noncompliance and a wet cast, there are no reports in the literature of this occurring. We present the devastating complication of a pediatric patient who developed Pseudomonas aeruginosa subperiosteal abscess, osteomyelitis, and elbow septic arthritis after presenting to the clinic multiple times with a wet cast after closed reduction and percutaneous pinning of a supracondylar humerus fracture. We describe the treatment course for this patient, followed by the sequelae of posterolateral rotary instability. This case not only confirms that patients can get Pseudomonas infections if they get their cast wet but also stresses the importance of patient communication and compliance in preventing unfortunate complications. PMID- 29348956 TI - Nodular Lymphocyte-Predominant Hodgkin Lymphoma in Progressive Transformation of Germinal Centers. AB - Nodular lymphocyte-predominant Hodgkin lymphoma is an uncommon variant of Hodgkin lymphoma. Progressive transformation of germinal centers has been associated with and can develop prior to, concurrent with, or after the diagnosis of nodular lymphocyte-predominant Hodgkin lymphoma. We present a patient with a history of progressive transformation of germinal centers of the right parotid who presented 4 years later with ipsilateral parotid mass and cervical adenopathy. Knowledge of her previous diagnosis raised our concern for lymphoma, influenced our surgical management, and spared the patient additional surgery with risk of facial nerve injury inherent in revision parotidectomy. PMID- 29348957 TI - Acute Hematogenous Osteomyelitis in a Five-Month-Old Male with Rickets. AB - Osteomyelitis is defined as an infection of the bone, bone marrow, and the surrounding soft tissues. Most cases of acute hematogenous osteomyelitis in children are caused by Gram-positive bacteria, principally Staphylococcus aureus. We present a case where a 5-month-old male had an acute onset of decreased movement of his left leg and increased irritability and was subsequently diagnosed with rickets and hematogenous osteomyelitis with bacteremia. The case explores a possible association between hematogenous osteomyelitis and rickets. PMID- 29348958 TI - Seronegative Myasthenia Gravis, as a Rare Autoimmune Condition in Turner Syndrome. AB - Girls with Turner syndrome (TS), especially with isochromosome 46,X,i(X)(q10), are prone to develop autoimmunity. Associations of several autoimmune conditions with TS have been frequently described in the past. However, the unique combination of TS and myasthenia gravis (MG) has been reported only once before in a girl with mosaic monosomy 45,X/46,XX. Here, we present the second case of a girl affected with seronegative MG but with mosaic isochromosome TS. This is a child with developmental delay presented with muscle weakness, frequent fall, and bilateral ptosis. Diagnosis of MG was made based on positive Tensilon and electromyography tests and excellent response to intravenous immunoglobulin. At the age of 11 years due to short stature and developmental delay, a karyotype was done and revealed the mosaic isochromosome 45,X/46,X,i(X)(q10). Overall, clinicians should be aware of the vulnerability of girls with TS to autoimmunity, especially if the isochromosome 46,X,i(X)(q10) karyotype is identified. Furthermore, if a child with TS develops muscle weakness, ptosis, or ophthalmoplegia, MG should also be included in the differential diagnosis, particularly if other concurrent autoimmune conditions are present. PMID- 29348959 TI - Malignant Tumours Mimicking Complicated Appendicitis and Discovered upon Follow Up after Percutaneous Drainage: A Case of Two Patients. AB - The conservative management of periappendiceal abscesses is gaining favour due to decreased morbidity and improved clinical outcomes for patients. Occasionally however an abscess can mask underlying sinister pathology. In this article, we highlight two cases of appendiceal adenocarcinoma that were initially diagnosed as periappendiceal abscesses and managed conservatively with percutaneous drainage. We also discuss clinical and imaging features that may assist with identifying a hidden malignancy when presented in these situations. PMID- 29348960 TI - Inflammatory Fibroid Polyp: An Unusual Cause of Ileoileal Intussusception. AB - Inflammatory fibroid polyp (IFP), or Vanek's tumor, is a rare benign lesion of the gastrointestinal tract. Clinical manifestations of IFP vary based on size and location within the GI tract. This case describes a patient who presented with hematochezia and abdominal pain. Computed tomography revealed ileoileal intussusception without a clear lead point. The patient underwent resection of the intussuscepted small bowel with primary anastomosis. A large polypoid mass was identified as the pathological lead point. Histopathological and immunohistochemical analysis revealed an IFP. Review of the literature indicates that early surgical intervention is the treatment of choice for intussusception caused by IFP. Lesions are typically reported as solitary, and resection is curative. PMID- 29348961 TI - Mesenchymal Hamartoma of the Liver: Complete Excision Always Necessary. AB - Mesenchymal hamartoma (MH) is not an uncommon tumor of the liver in the age group of 2-10 years. It is the second most common benign liver tumor in children. Previously considered a developmental anomaly, newer insights into other theories of origin including toxic-metabolic, ischemic, and a true neoplastic process are in progress. Previous understanding of a purely benign nature of the tumor is being overridden by a real malignant transformation. Complete excision of the tumor with clear margins is recommended to achieve a long term cure. A thorough understanding of the natural history of these tumors and skillful surgical treatment are indispensable elements of care. PMID- 29348962 TI - Primary Cytomegalovirus Infection Causing Guillain-Barre Syndrome in a Living Renal Allograft Recipient. AB - Guillain-Barre Syndrome (GBS) is a common acute autoimmune polyneuropathy in adults. There have been few reported cases of Guillain-Barre Syndrome associated with active cytomegalovirus (CMV) infection in renal transplant recipients. Here we present a case of active CMV viremia inducing Guillain-Barre Syndrome in a renal transplant recipient. We discuss the treatment regimen utilized. Furthermore, we performed a review of the literature and discuss the cases of CMV induced GBS in renal transplant recipients. PMID- 29348963 TI - Mucin-Poor Mucinous Tubular and Spindle Cell Carcinoma of the Kidney Presented with Multiple Metastases Two Years after Nephrectomy: An Atypical Behaviour of a Rare, Indolent Tumour. AB - Background: Mucinous tubular and spindle cell carcinoma (MTSCC) is a rare type of renal cell carcinoma, whose clinical behaviour and metastatic potential have not been fully elucidated to date. There are only a few metastatic cases in the literature, which all either featured sarcomatoid differentiation or were synchronously metastasised at diagnosis. Case Presentation: We report a case of a 49-year-old male with end-stage kidney disease on dialysis, presenting with multiple osseous metastases of a mucin-poor variant of MTSCC of the kidney, without sarcomatoid differentiation, two years after bilateral nephrectomy for papillary renal cell carcinoma (RCC) at a curable stage. After retrospectively reexamining the initial nephrectomy specimens, the tumour of the right kidney was also diagnosed as a mucin-poor variant of MTSCC, while the tumour of the left kidney was confirmed as a papillary RCC. Conclusions: It is proposed that MTSCC can be associated with end-stage renal disease and that particularly the mucin poor variant is easily confused with papillary renal cell carcinoma, as happened in this case. Although it is considered as a relatively indolent malign entity, it can metastasise even years after successful primary surgical treatment. This implies, besides accurate diagnosis, that MTSCC patients should be monitored closely in the follow-up period. PMID- 29348964 TI - Association between the APOE epsilon4 Allele and Late-Onset Alzheimer's Disease in an Ecuadorian Mestizo Population. AB - Alzheimer's disease (AD) is the most common neurodegenerative disease. It has two main pathological hallmarks: amyloid plaques and neurofibrillary tangles. The APOE epsilon4 allele has been recognized as the strongest genetic risk factor for late-onset Alzheimer's disease (LOAD) in several populations worldwide, yet the risk varies by region and ethnicity. The aims of this study were to describe APOE allele and genotype frequencies and examine the relationship between the APOE epsilon4 allele and LOAD risk in an Ecuadorian Mestizo population. We carried out a case-control study comprising 56 individuals clinically diagnosed with probable AD (>=65 years of age) and 58 unrelated healthy control subjects (>=65 years of age). Genotyping was performed using the real-time PCR method. Our data showed that allelic and genotypic frequencies follow the trends observed in most worldwide populations. We also found a high-risk association between APOE epsilon4 allele carriers and LOAD (OR = 7.286; 95% CI = 2.824-18.799; p < 0.001). Therefore, we concluded that APOE epsilon4 must be considered an important genetic risk factor for LOAD in the Ecuadorian Mestizo population. Additionally, we suggest that in mixed populations the effects of admixture and ethnic identity should be differentiated when evaluating genetic contributions to Alzheimer's disease risk. PMID- 29348965 TI - Ethanol-Induced Alterations of T Cells and Cytokines after Surgery in a Murine Infection Model. AB - Background: Interactions between alcohol, infection, and surgery and their effect on differentiation and functionality of T helper cells are not yet completely understood. We hypothesized that alcohol and surgery disturb differentiation of T helper cells and contribute to an impaired immune response. Methods: Mice were treated with alcohol for two weeks. Saline treatment served as control. Clinical performance and weight were assessed. On day 14, a median laparotomy was performed and animals were challenged with Klebsiella pneumoniae intranasally. Bacterial load was determined in lungs and blood. T helper cell subpopulations and the released cytokines were assessed in lungs, spleens, and plasma. Key transcription factors of T cell differentiation were evaluated. Results: Alcohol significantly impaired clinical appearance and body weight of animals with postsurgical infection (p < 0.05). Bacterial load was significantly higher after alcohol treatment (p < 0.05). T helper cell subsets and released cytokine levels were significantly altered in lung, but not in spleen. Expression of transcription factors of T helper cell lineage commitment did not translate into different counts of T helper cells. Conclusions: Alcohol and surgery lead to significant cellular and functional modulations of T helper cells during postsurgical infection. These effects may contribute to an impaired immune response after surgery. PMID- 29348966 TI - Development of an Analytical Protocol for Determination of Cyanide in Human Biological Samples Based on Application of Ion Chromatography with Pulsed Amperometric Detection. AB - A simple and accurate ion chromatography (IC) method with pulsed amperometric detection (PAD) was proposed for the determination of cyanide ion in urine, sweat, and saliva samples. The sample pretreatment relies on alkaline digestion and application of Dionex OnGuard II H cartridge. Under the optimized conditions, the method showed good linearity in the range of 1-100 MUg/L for urine, 5-100 MUg/L for saliva, and 3-100 MUg/L for sweat samples with determination coefficients (R) > 0.992. Low detection limits (LODs) in the range of 1.8 MUg/L, 5.1 MUg/L, and 5.8 MUg/L for urine, saliva, and sweat samples, respectively, and good repeatability (CV < 3%, n = 3) were obtained. The proposed method has been successfully applied to the analysis of human biological samples. PMID- 29348967 TI - Quantitative Aspect of Leucophyllum frutescens Fraction before and after Encapsulation in Polymeric Nanoparticles. AB - The interest on plants has been focalized due to their biological activities. Extracts or fractions from plants in biodegradable polymeric nanoparticles (NP) provide many advantages on application studies. The encapsulation of the extract or fraction in NP is determined for the establishment of the test dose. HPLC method is an alternative to calculate this parameter. An analytical method based on HPLC for quantification of a hexane fraction from L. frutescens was developed and validated according to ICH. Different concentrations of the hexane fraction from leaves (HFL) were prepared (100-600 MUg/mL). Linearity, limit of detection, limit of quantification, and intra- and interday precision parameters were determined. HFL was encapsulated by nanoprecipitation technique and analyzed by HPLC for quantitative aspect. The method was linear and precise for the quantification of the HFL components. NP size was 190 nm with homogeneous size distribution. Through validation method, it was determined that the encapsulation of components (1), (2), (3), and (4) was 44, 74, 86, and 97%, respectively. A simple, repeatable, and reproducible methodology was developed for the propose of quantifying the components of a vegetable material loaded in NP, using as a model the hexane fraction of L. frutescens leaves. PMID- 29348968 TI - Evaluation of Root Canal Morphology of Mandibular First and Second Premolars Using Cone Beam Computed Tomography in a Defined Group of Dental Patients in Iran. AB - Background: Successful dental root canal treatments require a complete knowledge of dental anatomy and root canal morphology. Materials and Methods: One hundred and forty-five cone beam computed tomography (CBCT) images were used to assess the anatomy and morphology of mandibular premolars based on Vertucci's classifications in a defined group of dental patients in Iran. The number of roots and root canals, root canal morphology, root and canal shape (curvature), existence of C-shaped canal, and influence of sex on each of these were evaluated. A chi-squared test was used for statistical analysis. Results: The mandibular first and second premolars had a single root in 95.97% and 100% cases, respectively. In the mandibular first premolars, 62.2% were of type I, 0.8% type II, 10.9% type III, 0.8% type IV, 20.3% type V, 4.2% type VI, and 0.8% type VII; in the second premolars, 78% of canals were of type I, 3% type II, 11% type III, 7% type V, and 1% type VI. C-shaped canals did not exist in either of the premolars. The most prevalent root and canal shape was straight. The most prevalent root curvature was a distal curvature in both premolars (71.4% and 74% of first and second premolars, resp.). The most prevalent canal curvature was lingual and buccal for the first premolars (7.6% each) and distal for the second premolars (11%). No significant difference was found between men and women in nearly all of the above (P > 0.05). Conclusion: The results suggest that there is a need to conduct further evaluations on finding root and canal variations among more populations to gain better knowledge prior to root canal treatment. PMID- 29348969 TI - Smallholder Farmers' Livelihood Security Options amidst Climate Variability and Change in Rural Ghana. AB - Farming as a livelihood activity in the Bosomtwe District is threatened by climate change. This paper ascertained the alternative livelihood options of smallholder farmers against climate variability and change in the Bosomtwe District. Using a cross-sectional survey, 152 smallholder farmers were sampled from 12 communities using a multistage sampling procedure. The quantitative data collected were subjected to binary logistic regression analysis, contingency tables, frequencies, and Nagelkerke tests of association, embedded in the statistical package for social sciences (SPSS) v.17. The results indicate that farmers are resorting to alternative livelihood activities that are less capital intensive and require less skill in order to secure income and household food supply. Significant determinants of farmers' alternative livelihood are age, household size, and household food supply, which were significant at p < .030, p < .019, and p < .012, respectively. At a 95% confidence interval (CI), these variables had lower to upper CIs for each of the EXP (B), respectively, at CI = 1.134-12.524, CI = 1.359-30.224, and CI = 1.781-104.561, respectively. The paper recommends that government institutes policies that will create opportunities and draw on various local/grassroots opportunities and resources to expand farmers' asset base for sustainable livelihood strategies. PMID- 29348970 TI - Genetic Variability of Exotic Sugarcane Genotypes. AB - Sugarcane is the main sugar producing crop in Bangladesh. However, improvement of this crop through breeding is limited due to lack of genetic diversity. Therefore, genetic variability and diversity assessment are necessarily important for the foreign introduced materials. Experiment was conducted with 9 exotic sugarcane genotypes at Regional Station, Bangladesh Sugar Crop Research Institute, Gazipur, during 2012-13, following RCBD. Data were collected on different growth and yield contributing characters. Individual cane weight exhibited high genotypic coefficient of variation and phenotypic coefficient of variation. Leaf blade length, leaf blade width, fresh leaf weight, dried leaf weight, number of tillers, millable cane, bud size, cane diameter, internodes number, internode length, plant height, stalk length, brix%, and individual cane weight showed high heritability. Individual cane weight showed highly significant and positive correlation with cane diameter, internode length, and stalk length, whereas path coefficient analysis revealed that cane diameter had maximum positive direct effect on individual cane weight followed by internode length, number of tillers, and chlorophyll content. Results indicate that the genotypes should be selected on the basis of individual cane weight, cane diameter, and millable canes number for future breeding to get higher sugarcane yield in respect to juice and brix content. PMID- 29348971 TI - Ejection fraction improvement and reverse remodeling achieved with Sacubitril/Valsartan in heart failure with reduced ejection fraction patients. AB - BACKGROUND: Sacubitril/Valsartan has been shown to improve mortality and reduce hospitalizations in patients with heart failure with reduced ejection fraction (HFrEF). The effect of Sacubitril/Valsartan on ejection fraction (EF) and reverse remodeling parameters have not been previously described. METHODS: We performed a single-center, retrospective, cohort study of HFrEF patients (n=48) who were treated with Sacubitril/Valsartan for a median duration of 3 months (Interquartile range 2-6 months). Clinical and echocardiographic parameters were reviewed at three time points (pre-baseline which was median of 18 months before starting Sacubitril/Valsartan, baseline before treatment started, and post Sacubitril/Valsartan). Paired sample t-test and one-way repeated measures ANOVA were used for normally distributed data, while Wilcoxon Signed Rank test for non normally distributed data. RESULTS: Sacubitril/Valsartan use was associated with an average 5% (+/-1.2) increase in EF, from a mean baseline of 25.33% to 30.14% (p<0.001) with a median duration of treatment 3 months. There was no significant change in mean LVEF over a median duration of 11 months (IQR 5.5-15.5) between pre-baseline and baseline time points prior to treatment (p=1.0). The mean increase in ejection fraction tended to be marginally greater in the medium/high dose cohort as compared to the low dose cohort, with a mean increase of 5.09% (+/ 1.36) and 4.03% (+/-3.17), respectively (p=0.184). There was a 3.36 mm reduction in left ventricular end-systolic diameter (p=0.04), a 2.64 mm reduction in left ventricular end-diastolic diameter (p=0.02), and a 14.4 g/m2 reduction in left ventricular mass index (p<0.01). CONCLUSION: Sacubitril/Valsartan was found to improve EF and multiple measures of reverse remodeling beyond the effects of concomitant optimal medical therapy. Though these results are encouraging, our small sample, observational study requires confirmation in larger cohorts with longer follow-up periods. PMID- 29348972 TI - Galectin-3 and the incidence of abdominal aortic aneurysm: the atherosclerosis risk in communities (ARIC) study. AB - Galectin-3, a beta-galactosidase binding lectin, known to be involved in inflammatory processes may be associated with abdominal aortic aneurysm (AAA) incidence. We examined the prospective association between plasma galectin-3 and incident AAA in 9,704 participants of the Atherosclerosis Risk in Communities (ARIC) study cohort. We followed participants from 1996-1998 through 2011 (124,260 person-years) for incident AAA (n=325) defined by ICD codes from hospital records and death certificates. At baseline, participants had a mean (SD) age of 62.8 (5.7) years; 20.9% were blacks and 56.5% females. The median (25th-75th percentile) galectin-3 level was 14.2 (12.0-16.9) ng/mL. Galectin-3 was correlated positively with most cardiovascular risk factors and with several cardiac or inflammatory biomarkers (C-reactive protein, troponin-T, and NT proBNP). Using Cox proportional hazards regression adjusted for demographic variables and measured AAA risk factors, the hazard ratios for AAA across galectin-3 quintiles were 1 (Referent), 1.54 (1.05-2.26), 1.58 (1.05-2.41), 1.76 (1.15-2.72), and 1.92 (1.22-3.01) (p for trend =0.01). Further adjustment for the cardiac and inflammatory biomarkers largely attenuated the association between galectin-3 and AAA [AAA hazard ratio for galectin-3 Quintile 5 vs. Quintile 1: 1.29 (0.81-2.05); p-trend across quintiles =0.44]. In conclusion, higher concentrations of plasma galectin-3 were associated with greater incidence of AAA though not independent of other cardiac and inflammatory biomarkers. This reinforces that galectin-3, a systemic biomarker reflecting inflammation and probably increased systemic vascular resistance, is elevated early in the pathogenesis of AAA. PMID- 29348973 TI - Associations between four types of single-nucleotide polymorphisms in PLA2G7 gene and clinical atherosclerosis: a meta-analysis. AB - BACKGROUND: Previous studies suggested that some types of single nucleotide polymorphisms (SNPs) in PLA2G7 genes, encoding Lp-PLA2 have been reported to yield an antiatherogenic effect, but other studies mentioned otherwise. Thus, a comprehensive study to explore the effect of SNPs in PLA2G7 genes (V279F, A379V, R92H, I198T) toward clinical atherosclerosis is needed. METHODS: We searched eligible studies from PubMed, EBSCO, ProQuest, Science Direct, Springer, and Cochrane databases for case-control studies to assess the between four types of SNPs in PLA2G7 gene with risk of clinical atherosclerosis (CVD = cardiovascular disease, CAD = coronary artery disease, PAD = peripheral artery disease, ischemic stroke). All studies were assessed under Hardy-Weinberg Equilibrium, an additive model. This meta-analysis was performed by RevMan 5.3 to provide pooled estimate for odds ratio (ORs) with 95% confidence intervals (95% CIs). RESULTS: Fourteen clinical studies met our inclusion criteria. Those included 12,432 patients with clinical atherosclerosis and 10,171 were controls. We found that ORs of two variants SNPs (V279F, R92H) were associated with clinical atherosclerosis {V279F, OR = 0.88 (95% CI, 0.81-0.95); p = 0.0007, I2 = 40%}, {R92H, OR = 1.29 (95% CI, 1.09-1.53); p = 0.003, I2 = 73%}. Meanwhile, there was no significant associations between the other two, A379V {OR = 1.08 (95% CI, 0.93-1.26); p = 0.31, I2 = 78%} and I198T {OR = 1.12 (95% CI = 0.79-1.59); p = 0.53, I2 = 81%}. CONCLUSIONS: These results suggested that V279F polymorphism in PLA2G7 gene has a protective effect for clinical atherosclerosis, whereas R92H polymorphism might contribute toward increased risk of clinical atherosclerosis. PMID- 29348974 TI - Systemic inhibition of neddylation by 3-day MLN4924 treatment regime does not impair autophagic flux in mouse hearts and brains. AB - Beyond helping the cell survive from energy starvation via self-eating a portion of cytoplasm, macroautophagy is also capable of targeted removal of defective organelles or cytoplasmic aberrant protein aggregates, thereby playing an important role in quality control in the cell. Impaired or suppressed macroautophagy activity is associated with the progression from a large subset of heart diseases to heart failure and with the development of the vast majority of, if not all, neurodegenerative diseases, the leading causes of death and disability in humans. Hence, a better understanding of the impact of existing and upcoming pharmacotherapies on macroautophagy in the heart and brain will undoubtedly benefit the search for safer and more effective treatment to improve human health. Neddylation is a recently recognized posttranslational modification process that modifies a subset of cellular proteins and is, by virtue of regulating Cullin-RING ligases, essential to ~20% ubiquitin-proteasome system (UPS)-mediated protein degradation. MLN4924 (Pevonedistat), a specific inhibitor of neddylation that promises to become a new anti-malignancy agent, is capable of inhibiting UPS-mediated progression of the cell cycle and activating macroautophagy in cancer cells. However, no reported study has tested the impact of systemic inhibition of neddylation on autophagic activity in a post-mitotic organ such as the heart and brain. This study was conducted to fill this gap. Sixteen GFP-LC3 transgenic mice of mixed sexes were divided equally into either MLN4924-treated or vehicle-treated groups and were treated respectively with MLN4924 (30 mg/kg, s.c., twice a day * 3 days) or equal volume of solvent. The resultant changes in myocardial levels of neddylated cullin 1 as well as autophagic flux in cardiac and brain tissues were assessed. The effectiveness of the MLN4924 regime was verified by myocardial accumulation of neddylated cullin 1. Myocardial LC3-II flux and free GFP levels were comparable between the MLN4924 and the vehicle groups whereas the protein level of p62, a bona fide substrate of macroautophagy, in the brain was significantly decreased by the MLN4924 treatment. Our data suggest that systemic inhibition of neddylation by a 3-day MLN4924 treatment regime does not suppress macroautophagy activities in the heart and brain. PMID- 29348975 TI - Some different treatment of sandal burns of the hand in children. AB - The hands account for less than 5% of total body surface area, but loss of the hand constitutes a 57% loss of function for the whole person. In Central Asia, and particularly in Uzbekistan, many episodes of burns take place at homes because of using sandal heaters. During a 16-year period (1992-2007), 61 patients with severe sandal burns of the hand were treated at the Burn department of RSCUMA and Samarkand Inter-Regional Burn Center, Uzbekistan. The main goal of this work was to present the most complete information about sandal burns of the hand and discuss the most effective methods of treatment for sandal burns. As a result of using this method of treatment for burned children in our practice, the percentage of post burn consequences, such as the impact on mobility and growth of the extremities, was greatly reduced. PMID- 29348977 TI - Treatment in the healing of burns with a cold plasma source. AB - A cold plasma produced with helium gas was applied to two second-degree burns produced with boiling oil. These burns were located on a thigh and a shin of a 59 years-old male person. After the first treatment as benefit the patient neither presented itching nor pain and, after the second treatment, the patient presented new tissue. This result opens the possibilities of the application of a cold plasma source to health burns. PMID- 29348976 TI - The validity and reliability of using ultrasound elastography to measure cutaneous stiffness, a systematic review. AB - BACKGROUND: Ultrasound elastography is an imaging technology which can objectively and non-invasively assess tissue stiffness. It is emerging as a useful marker for disease diagnosis, progression and treatment efficacy. OBJECTIVE: To examine current, published research evaluating the use of ultrasound elastography for the measurement of cutaneous or subcutaneous stiffness and to determine the level of validity and reliability, recommended methodologies and limitations. METHODS: MEDLINE, Web of science and Scopus were systematically searched in August 2016 to identify original articles evaluating the use of ultrasound elastography to assess cutaneous stiffness. Relevant studies were then quality evaluated using the Quality Assessment of Diagnostic Accuracy Studies v 2 (QUADAS-2) tool and the Quality Appraisal of Reliability Studies (QAREL). RESULTS: From a total of 688 articles, 14 met the inclusion criteria for full review. Within the 14 studies, elastography was used to evaluate tumors, systemic sclerosis, lymphedema, abscess, and post-radiation neck fibrosis. Only three robust studies demonstrated good interrater reliability, whereas all validity studies had low sample sizes and demonstrated risks of bias. CONCLUSION: Robust evidence supporting the use of ultrasound elastography as a diagnostic tool in cutaneous conditions is low, however, initial indicators support further research to establish the utility of ultrasound elastography in dermatology. PMID- 29348978 TI - The effect of ambient lighting on Laser Doppler Imaging of a standardized cutaneous injury model. AB - OBJECTIVE: The aim of this study was to investigate the potential confounding effects of four different types of ambient lighting on the results of Laser Doppler Imaging (LDI) of a standardized cutaneous injury model. METHODS: After applying a mechanical stimulus to the anterior forearm of a healthy volunteer and inducing a wheal and arteriolar flare (the Triple response), we used a Laser Doppler Line Scanner (LDLS) to image the forearm under four different types of ambient lighting: light-emitting-diode (LED), compact fluorescent lighting (CFL), halogen, daylight, and darkness as a control. A spectrometer was used to measure the intensity of light energy at 785 nm, the wavelength used by the scanner for measurement under each type of ambient lighting. RESULTS: Neither the LED nor CFL bulbs emitted detectable light energy at a wavelength of 785 nm. The color-based representation of arbitrary perfusion unit (APU) values of the Triple response measured by the scanner was similar between darkness, LED, and CFL light. Daylight emitted 2 mW at 785 nm, with a slight variation tending more towards lower APU values compared to darkness. Halogen lighting emitted 6 mW of light energy at 785 nm rendering the color-based representation impossible to interpret. CONCLUSIONS: Halogen lighting and daylight have the potential to confound results of LDI of cutaneous injuries whereas LED and CFL lighting did not. Any potential sources of daylight should be reduced and halogen lighting completely covered or turned off prior to wound imaging. PMID- 29348979 TI - Simplified estimation of binding parameters based on image-derived reference tissue models for dopamine transporter bindings in non-human primates using [18F]FE-PE2I and PET. AB - The aim of this study on dopamine transporter binding by [18F]FE-PE2I and PET was to describe an image-derived approach using reference tissue models: the Logan DVR approach and simplified reference tissue model (SRTM), the features of which were simple to operate and precise in the measurements. Using the approach, the authors sought to obtain binding images and parameters. [18F]FE-PE2I and dynamic PET as well as an MRI was performed on three rhesus monkeys, and metabolite corrected arterial plasma inputs were obtained. After co-registering of PET to MR images, both image sets were resliced. The time-activity curve of the cerebellum was used as indirect input, and binding parametric images were computed voxel-by voxel. Voxel-wise linear calculations were used for the Logan DVR approach, and nonlinear least squares fittings for the SRTM. To determine the best linear regression in the Logan DVR approach, the distribution volume ratio was obtained using the optimal starting frame analysis. The obtained binding parameters were compared with those obtained by the other independent ROI-based numerical approaches: two-tissue compartment model (2TCM), Logan DVR approach and SRTM using PMOD software. Binding potentials (BP) obtained by the present approach agreed well with those obtained by ROI-based numerical approaches, although reference tissue models tended to underestimate the BP value than 2TCM. Image derived Logan approach provided a low-noise image, the computation time was short, and the error in the optimal starting frame analysis was small. The present approach provides a high-quality binding parametric image and reliable parameter value easily. PMID- 29348980 TI - The value of FDG PET/CT for follow-up of patients with melanoma: a retrospective analysis. AB - The incidence of melanoma (MM) is among the fastest rising cancers in the western countries. Positron Emission Tomography with Computed Tomography (PET/CT) is a valuable non-invasive tool for the diagnosis and staging of patients with MM. However, research on the value of PET/CT in follow-up of melanoma patients is limited. This study assesses the diagnostic value of PET/CT for follow-up after melanoma surgery. This retrospective study includes patients with MM who performed at least one PET/CT scan after initial surgery and staging. PET/CT findings were compared to histology, MRI or fine needle aspiration (FNA) to estimate the diagnostic accuracy. The diagnostic performance of PET/CT performed in patients with and without a clinical suspicion of relapse was compared. 238 patients (526 scans) were included. Of the 526 scans 130 (25%) scans were PET positive, 365 (69%) PET-negative, and 28 (5%) had equivocal findings. Sensitivity was 89% [0.82-0.94], specificity 92% [0.89-0.95], positive and negative predictive values of 78% [0.70-0.84] and 97% [0.94-0.98] respectively. When stratified for reason of referral there was no statistical significant difference in the diagnostic accuracy of PET/CT between patients referred with or without a clinical suspicion of relapse. This study demonstrates that PET/CT despite a moderate sensitivity has a high negative predictive value in the follow-up of melanoma patients. Thus, a negative PET/CT-scan essentially rules out relapse. However, the frequency of false positive findings is relatively high, especially among patients undergoing a "routine" PET/CT with no clinical suspicion of relapse, potentially causing anxiety and leading to further diagnostic procedures. PMID- 29348981 TI - Development of a clinically feasible [11C]PE2I PET method for differential diagnosis of parkinsonism using reduced scan duration and automated reference region extraction. AB - [11C]PE2I is a highly selective dopamine transporter PET ligand. Parametric images based on dynamic [11C]PE2I scans, showing dopamine transporter availability (BPND) and relative cerebral blood flow (R1), can be used in differential diagnosis of parkinsonism. This work aimed to investigate a shortened scan duration and automated generation of parametric images which are two prerequisites for routine clinical application. Twelve subjects with parkinsonism and seventeen healthy controls underwent 80 min dynamic [11C]PE2I PET scans. BPND and R1 images were generated using cerebellum reference region defined on a co-registered MRI, as well as a supervised cluster analysis (SVCA) based reference. Initial 20, 30 and 40 min of the scans were extracted and images of standardized uptake value ratio (SUVR) and R1 were computed using MRI- and SVCA-based reference. Correlation was high between striatal 80 min MRI-based BPND and 40 min SVCA-based SUVR-1 (R2=0.95). High correlation was also found between R1 values in striatal and limbic regions (R2>=0.91) whereas correlation was moderate for cortical regions (R2=0.71). The results indicate that dynamic [11C]PE2I scans can be restricted to 40 min and that SVCA can be used for automatic extraction of a reference region. These outcomes will support routine applications of [11C]PE2I PET in clinical settings. PMID- 29348982 TI - Pictorial atlas of symptomatic accessory ossicles by 18F-Sodium Fluoride (NaF) PET-CT. AB - Accessory ossicles are developmental variants which are often asymptomatic. When incidentally picked up on imaging, they are often inconsequential and rarely a cause for concern. However, they may cause pain or discomfort due to trauma, altered stress, and over-activity. Nuclear scintigraphy may play a role in the diagnosis and localizing pain generators. 18F-Sodium Fluoride (NaF) is a PET imaging agent used in bone imaging. Although commonly used in imaging patients with cancer imaging malignancy, 18F-NaF may be useful in the evaluation of benign bone and joint conditions. In this article, we would like to present a spectrum of clinical cases and review the potential diagnostic utility of 18F-NaF in the assessment of symptomatic accessory ossicles in patients referred for staging cancers. PMID- 29348983 TI - Sparse domain approaches in dynamic SPECT imaging with high-performance computing. AB - Iterative reconstruction algorithms often have relatively large computation time affecting their clinical deployment. This is especially true for 4D reconstruction in dynamic imaging (DI). In this work, we have shown how sparse domain approaches and parallelization for static 3D image reconstruction and 4D dynamic image reconstruction (directly from sinogram) in Single Photon Emission Computed Tomography (SPECT), without any intermediate 3D reconstructions, can improve computational efficiency. DI in SPECT is one of the hardest inverse problems in medical image reconstruction area and slow reconstruction is a challenge for this promising protocol. Our work hopefully, paves a new direction toward making DI in SPECT clinically viable. Our 4D reconstruction also is a novel application of non-negative matrix factorization (NNMF) in an inverse problem. PMID- 29348984 TI - Human immune system during sleep. AB - A joint function of tissues, organs and cells for the protection of body develops immune system. The human immune response against various infections during sleep, its mechanism, neuroimmune interactions, immunoregulatory effect of sleep along with sleep deprivation and role of cytokines in sleep deprivation were addressed. It is revealed that human immune system and sleep both are associated and influenced by each other. Sleep deprivation makes a living body susceptible to many infectious agents. In the result, immune system of human body is altered by releasing immunomodulators in the response of infections as reported by various researchers. Basic reasons and mechanisms of most of the poor sleep networks and release of proinflammatory modulators are still uncertain. The current situation requires improved sleep habits to make immune system efficient for a healthy life. PMID- 29348985 TI - The effect and safety of diacerein in patients with type 2 diabetes mellitus : a systematic review and meta-analysis. AB - : The Background: Diacerein has been proposed as a treatment option for management of type 2 diabetes due to its anti-inflammatory properties. PURPOSE: The aim of this systematic review and meta-analysis of randomized controlled trials (RCTs) is to examine the effect and safety of diacerein in patients with type 2 diabetes. DATA SOURCES AND STUDY SELECTION: We searched Pubmed, Embase, and Cochrane Library for RCTs published from database inception to September 2017. DATA EXTRACTION AND DATA SYNTHESIS: Among 44 studies that were initially identified, four were eligible and were included in the following analysis. Diacerein significantly reduced fasting glycemia [weighted mean differences (WMD) -0.66, 95% confidence interval (95% CI) -1.16 to -0.16] and glycated hemoglobin A1c (HbA1c ) (WMD -0.85, 95% CI -1.44 to -0.26). And the patients with a diacerein supplementation duration of <=12 weeks had a greater decrease of fasting glycemia and HbA1c than the supplementation duration of >12 weeks. Furthermore, compared with placebo, diacerein revealed a significant increase in the relative risk (RR) of gastrointestinal symptoms (RR=2.50, 95% CI: 1.10 to 5.65), especially in the study subgroup with supplementation duration of >12 weeks (RR=4.01, 95% CI: 2.32 to 6.95). LIMITATIONS: The sample size was relatively small and the duration of included studies was short so that the treatment efficacy and safety for longer duration was unknown. CONCLUSIONS: Although further studies are needed, our findings clearly provide support to the use of diacerein in the clinical management of subjects with type 2 diabetes. PMID- 29348986 TI - An immunohistochemical analysis of folate receptor beta expression and distribution in giant cell arteritis - a pilot study. AB - BACKGROUND: Giant cell arteritis (GCA) is a chronic vasculitis of large and medium vessels in which no targetable biomarkers exist to allow selective treatment, predict disease activity and monitor therapeutic responses. The accessibility of the temporal artery (TA) for biopsy allows morphologic studies to characterize macrophages and T cells in the microenvironment of the arterial wall. We evaluated the expression of folate receptor beta (FRB), a candidate diagnostic/therapeutic biomarker, compared its expression with key macrophage markers and correlated it with GCA severity. METHODS: Formalin-fixed paraffin embedded tissue sections were examined from 6 patients with GCA and 2 controls. Immunohistochemistry was performed using FRB, ETB, CD68 and CD3 antibodies to evaluate for activated macrophages and T cells, assess FRB distribution along the intima, media and adventitial layers and composition of inflammatory infiltrates. We compared the expression of FRB, ETB and CD68 in GCA versus negative controls and in severe (with visual loss) versus mild (without visual loss) disease. RESULTS: In GCA, moderate to severe inflammation was accompanied by >90% destruction of the internal elastic lamina. Macrophages comprised 36.3 +/- 4.1% while CD3+ lymphocytes accounted for 61.7 +/- 4.1% of total leukocytes. FRB was selectively expressed in macrophages and localized to the adventitia. GCA patients had marginally increased median FRB (9.8 cells/hpf vs. 0; p=0.095), ETB (20.5 vs. 0; p=0.095) and CD68 (38.8 vs. 5; p=0.071) expression versus controls. ETB was found in endothelial cells, smooth muscle cells and macrophages in intima/media. FRB positively correlated with ETB (r=0.90; p-0.037) and CD68 levels (r=0.90; p=0.037). ETB expression positively correlated with CD68 (r=1.0; p<0.0001). There was no difference in FRB between severe and mild GCA. CONCLUSION: FRB is a potential diagnostic and therapeutic biomarker with restricted expression in GCA macrophages. FRB+ macrophages localized to the adventitia and their expression correlated with ETB and CD68 macrophages, suggesting that they contribute to GCA pathogenesis. PMID- 29348987 TI - Rhino-Orbital-Cerebral Mucormycosis: A Fatal Complication of Uncontrolled Diabetes Mellitus. AB - Mucormycosis is a progressively invasive disease, with a fatal outcome, on late presentation. A 38-year-old female presented with diabetic ketoacidosis with right eye ptosis and a frozen globe without any signs of inflammation, externally. She underwent transnasal endoscopic debridement of paranasal sinuses and exenteration of the right eye. The histopathology specimen revealed the growth of mucormycosis. She was treated with intravenous (IV) amphotericin B, IV insulin, and extensive debridement surgery, but had an unfavorable outcome due to rapid mucor invasion to the brain. PMID- 29348988 TI - Anal Squamous Cell Carcinoma in a Patient with Myasthenia Gravis: Is Immunosuppression the Main Underlying Etiology? AB - Patients who are immunocompromised by diseases such as human immunodeficiency virus (HIV) infection are more prone to develop some malignancies such as Kaposi's sarcoma and central nervous system (CNS) lymphomas. Historically, anal squamous cell carcinoma (SCC) was also included on the list as an acquired immunodeficiency syndrome (AIDs)-defining cancer. Similarly, compromised immune disorders including severe immunosuppression, haematologic malignancies, and solid organ transplantation have been identified as important risk factors for the development of anal SCC. Review of the medical literature showed only sporadic cases of anal SCC in patients with pre-existing myasthenia gravis (MG), with or without thymoma. We present here a case of anal SCC in a patient with several years history of MG who was receiving intravenous immunoglobulin (IVIG). We believe this association is explained by the autoimmune nature of the disease and the use of immunosuppressive medications to treat it. To further support our case, we also present a review of the literature associating anal SCC with MG. PMID- 29348989 TI - Signs and Symptoms of Acoustic Neuroma at Initial Presentation: An Exploratory Analysis. AB - Introduction The objective of this study was to describe the most common clinical features associated with an acoustic neuroma diagnosis and to identify those features associated with larger tumour size at initial diagnosis. Methods The clinical information of 945 consecutive patients diagnosed with acoustic neuroma at a single centre between 1992 and 2015 was analysed. Clinical features were examined and the relationship between these features and tumour size (>2.5 cm) was analysed using descriptive statistics and logistic regression analysis. Statistical analysis was performed in R version 3.1.1. Results The most common presenting symptom was a unilateral hearing loss in 752 patients (80%), with a progressive pattern in 90% of these cases. The second most common presenting symptom was unilateral tinnitus, accounting for 6.3%, while ataxia, vertigo and headache accounted for 3.8%, 3.4% and 2%, respectively. The diagnosis of acoustic neuroma was an incidental finding in 20 patients (2.1%). Temporal analysis demonstrated a downward trend in the number of patients presenting with hearing loss and an increased proportion of patients presenting with other symptoms. On multivariate analysis, larger tumour size was associated with abnormal tandem gait (odds ratio 8.9, p=0.02), subjective facial weakness (odds ratio 5.3, p< 0.001), abnormal facial sensation on examination (odds ratio 3.0, p=0.03) and headache (odds ratio 2.6, p< 0.001). Conclusion The majority of patients with acoustic neuroma present with the classic, progressive, unilateral hearing loss. However, the pattern of presentation in acoustic neuroma patients is changing. Features in the history indicative of a larger tumour are headaches and subjective facial weakness, whilst concerning features on examination are abnormal tandem gait and altered facial sensation. PMID- 29348990 TI - Hypercalcemia of Malignancy: An Emergency Medicine Simulation. AB - Hypercalcemia is a poor prognostic factor associated with malignancy. The signs and symptoms of hypercalcemia that the patients present to the emergency department are vague and often overlap with the general symptoms of cancer itself or the adverse effects of the chemotherapy. Given that the development of hypercalcemia of malignancy can present with imminent danger to the patient and is a treatable condition, emergency physicians should know how to recognize and treat it. It also marks a time at which discussions regarding plans of care should be initiated with the patients. In this report, we describe a simulation case that can be used to train emergency medicine residents to both recognize and treat hypercalcemia of malignancy and to initiate the discussion of goals of care. PMID- 29348991 TI - Medical Expulsive Therapy for Distal Ureteral Stones: Tamsulosin Versus Silodosin in the Turkish Population. AB - Introduction Our aim was to contribute a study that includes a higher patient population to the limited number of studies comparing tamsulosin and silodosin in the treatment of distal ureteral stones. Material and methods Patients who presented with renal colic to the urology emergency clinic and were diagnosed with ureteral stones and followed-up with conservative treatment between January 2010 and January 2016 were retrospectively screened. According to the inclusion exclusion criteria, the patients were divided into three groups. Group 1: 150 patients followed with watchful waiting (WW), Group 2: 156 patients who received 0.4 mg of tamsulosin daily, and Group 3: 159 patients who received 8 mg of silodosin daily. The side effects of the used drugs, duration of stone reduction, and expulsion rates were evaluated and compared separately. Results A total of 465 patients were included in the study. No statistically significant difference was found in terms of age, gender, and stone size among the groups. The patient characteristics and results are shown in Table 1. The differences in stone expulsion rate between the groups in the first week were calculated using the Chi square test and found to be non-significant (p = 0.155); whereas, the stone expulsion rates between Group 1 versus Group 2 and Group 1 versus Group 3 were found to be significantly different after the second and third week. Conclusion According to our results, no statistically significant superiority between tamsulosin and silodosin was shown in the treatment of distal ureteral stones in the Turkish population. PMID- 29348992 TI - Hernioscopy in Incarcerated Inguinal Hernia Spontaneously Reduced after General Anesthesia Induction. AB - Hernioscopy is essentially hernia sac laparoscopy. Hernia repair has evolved over the years with better outcomes; however, strangulated inguinal hernias are acute surgical emergencies which require emergent operative intervention. During anesthesia induction and/or after incision, hernia self-reduction is possible, with or without compromised bowel, back into the abdominal cavity. It is pivotal to examine the bowel to decide on further operative course. A simple alternative to unnecessary laparotomy or standard laparoscopy is hernioscopy, which is quite uncommon. We present a case of an acute symptomatic strangulated left-sided inguinal hernia which got self-reduced during anesthesia induction and was successfully repaired after hernioscopy was used to evaluate the incarcerated hernia content. We provide a brief review of literature about hernioscopy and an algorithm to guide surgeons in emergent cases. PMID- 29348993 TI - Delayed Presentation of Cerebral Air Embolism from a Left Atrial-Esophageal Fistula: A Case Report and Review of the Literature. AB - Air embolism developing from an atrial-esophageal fistula that was created as a complication from an atrial ablation procedure is a rare, yet usually fatal diagnosis. Neurologic manifestations such as meningitis, altered mental status, seizures, strokes, transient ischemic attacks (TIAs), psychiatric changes, and coma can ensue. Imaging of the brain might reveal infarcts, cerebral edema, as well as signs of pneumocephalus. This case describes a 42-year-old male with recent cardiac ablation procedure at an outside hospital for refractory atrial fibrillation (A-fib) who presented with altered mental status, dyspnea and diaphoresis. His initial head computed tomography (CT) scan revealed pneumocephalus. He was started on a heparin drip for a non-ST elevation myocardial infarction (NSTEMI), but developed severe coagulopathy. The patient's mental status quickly deteriorated. Given recent cardiac ablation procedure, the cause of his air embolism was thought to be from a created left atrial-esophageal fistula. Despite medical management, he was too unstable to undergo any surgical intervention for his atrial-esophageal fistula or to transfer to a hyperbaric oxygen therapy center, and expired on the second day following his hospital admission. To our knowledge, few reports have been published in the literature describing delayed cerebral air embolism from an atrial-esophageal fistula. Prompt diagnosis, hyperbaric oxygen therapy, and surgical intervention are essential to avoid mortality in these patients. This article aims to increase awareness of such a rare, but significant complication. PMID- 29348994 TI - The association of Mediterranean diet and exercise modifications with anthropometric parameters in a psychiatric community population: A pilot study. AB - Weight gain and related metabolic syndrome (MS) are major current issues in public health. MS consists of abdominal fat, atherogenic dyslipidemia, hypertension, hyperglycemia, insulin resistance, pro-inflammatory and pro thrombotic state, and accounts for both cardiovascular diseases and type II diabetes mellitus risk factors. Patients affected by psychiatric illness present a prevalence of 35-40% of MS. Many studies have shown that Mediterranean diet is associated with the reduction of mortality due to cardiovascular and malignant diseases, potentially preventing both obesity and type II diabetes mellitus. Our pilot study explores the effects of a 12-month healthy lifestyle program (Mediterranean diet and mild physical activity) on metabolic and anthropometric parameters of patients affected by chronic psychiatric disorders who live in a psychiatric community facility. A Mediterranean diet was provided by a senior nutritional clinician and adapted by two dieticians, according to the needs and preferences of the community population. Concomitantly, a program of moderate physical activity, consisting in 30-min walks on level ground 4 days a week, and psycho-educational group sessions with educational and therapeutic purposes were implemented. The metabolic and anthropometric parameters of our patients improved after both 6 (T6) and 12 (T12) months. Body Max Index was statistically significantly reduced at T6 and T12, with patients perceiving good quality of life. These positive outcomes suggest that a low-cost healthy lifestyle program can produce good adherence and feasibility even among patients with chronic psychiatric diseases, reducing their risk for MS, cardiovascular diseases and other complications. PMID- 29348995 TI - Mental health assessment in health checks of participants aged 30-49 years: A large-scale cohort study. AB - Mental distress is an independent risk factor for illness related impairment. Awareness of mental health (MH) allows prevention, but early detection is not routinely performed in primary care. This cohort study incorporated MH assessment in a health promoting programme. We described the level of poor MH among health check participants, explored the potential for early intervention, and the potential for reducing social inequality in MH. The study was based on 9767 randomly selected citizens aged 30-49 years invited to a health check in Denmark in 2012-14. A total of 4871 (50%) were included; 49% were men. Poor MH was defined as a mental component summary score of <= 35.76 in the SF-12 Health Survey. Data was obtained from national health registers and health check. Participants with poor MH (9%) were more socioeconomic disadvantaged and had poorer health than those with better MH. Two thirds of men (64%) and half of women (50%) with poor MH had not received MH care one year before the health check. Among those with (presumably) unrecognized MH problems, the proportion of participants with disadvantaged socioeconomic characteristics was high (43-55%). Four out of five of those with apparently unacknowledged poor MH had seen their GP only once or not at all during the one year before the health check. In conclusion, MH assessment in health check may help identify yet undiscovered MH problems. PMID- 29348996 TI - Acculturation and dietary intake pattern among Jamaican immigrants in the US. AB - Information on dietary intakes of Jamaican immigrants in the United States is sparse. Understanding factors that influence diet is important since diet is associated with chronic diseases. This study examined the association between acculturation, socio-cultural factors, and dietary pattern among Jamaican immigrants in Florida. Jamaican persons 25-64 years who resided in two South Florida counties were recruited for participation. A health questionnaire that assessed acculturation, dietary pattern, and risk factors for cardiovascular disease was administered to participants. Generalized Estimating Equations were used to determine associations. Acculturation score was not significantly associated with dietary intake pattern (beta = - 0.02 p = 0.07). Age at migration was positively associated with traditional dietary pattern (beta = 0.02 p < 0.01). Persons with 12 or fewer years of education (beta = - 0.55 p < 0.001), divorced (beta = - 0.26 p = 0.001), or engaged in less physical activity (beta = 0.07 p = 0.01) were more likely to adhere to a traditional diet. Although acculturation was not a statistically significant predictor of dietary intake, findings show the role of demographic and lifestyle characteristics in understanding factors associated with dietary patterns among Jamaicans. Findings point to the need to measure traditional dietary intakes among Jamaicans and other immigrant groups. Accurate assessment of disease risk among immigrant groups will lead to more accurate diet-disease risk assessment and development of effective intervention programs. PMID- 29348997 TI - Diagnosis and management of a fatal case of sepsis caused by Candida parapsilosis sensu stricto in a neonate with omphalocele. AB - We present a fatal case of persistent neonatal candidemia by Candida parapsilosis following omphalocele, without other anomalies. Despite an encouraging initial prognosis, after surgical correction and closure of the abdominal wall the case became difficult to treat, as in addition to the exposure of the patient to multiple risk factors for candidemia, antifungal therapy apparently was not adequate. PMID- 29348998 TI - Meniscal Repair With Fibrin Clot Augmentation. AB - Meniscal injuries and meniscal loss are associated with changes in knee kinematics and loading, ultimately leading to poor functional outcomes and increased risk of progression to osteoarthritis. Biomechanical studies have shown restored knee function, and clinical studies have reported improved outcomes and decreased risk of osteoarthritis after meniscal repair. This has led orthopaedic surgeons to try and save the meniscus by repair whenever possible, as shown by increasing incidence of meniscal repair surgeries. Historically, meniscal lesions, particularly those greater in size and located in the white-white region of the meniscus, have been shown to have poor healing. In recent years, there has been an increasing interest in the use of biologic agents to help stimulate and expedite healing in traditionally more avascular tissue. Preliminary results for biologic therapeutic agents, such as platelet rich plasma and bone marrow aspirate concentrate, have been encouraging. However, these options are more demanding in regard to time, financial burden, resources, and regulations than some more classic agents such as fibrin clots. Fibrin clot is readily available, easy to use, affordable, and minimally invasive. This Technical Note describes a step-by-step and reproducible technique for harvesting, preparation, and using a fibrin clot to augment healing of meniscal repairs. PMID- 29348999 TI - Open Repair of Quadriceps Tendon With Suture Anchors and Semitendinosus Tendon Allograft Augmentation. AB - Quadriceps tendinopathy in an increasingly recognized diagnosis can lead to quadriceps tendon rupture, especially in the older population. It can be caused by repeated micro trauma or also predisposed by systemic diseases such as diabetes mellitus and connective tissue disorders that can in turn lead to extensor mechanism deficits. Although a trial of conservative treatment is advocated, operative treatment should be performed in cases of persistent pain, extension deficit, or complete rupture of the tendon. The purpose of this Technical Note is to describe in detail a procedure for open repair of a quadriceps tendon, with significant degeneration due to quadriceps tendinopathy, using suture anchors and semitendinosus tendon allograft augmentation. PMID- 29349000 TI - Hamstring Graft Preparation Techniques for Anterior Cruciate Ligament Reconstruction. AB - Anterior cruciate ligament reconstruction is one of the most commonly performed procedures in orthopaedics, with more than 125,000 performed in the United States per year. There are several reconstruction graft choices that can be used to reconstruct the native anterior cruciate ligament, with autograft hamstring tendons being one of the most commonly used. Preparation of a hamstring autograft varies depending on patient characteristics and physician preference. The purpose of this Technical Note is to describe in detail different variants of hamstring graft preparation techniques that are commonly used in practice. PMID- 29349001 TI - Medial Closing-Wedge Distal Femoral Osteotomy with Medial Patellofemoral Ligament Imbrication for Genu Valgum with Lateral Patellar Instability. AB - A varus-producing distal femoral osteotomy (DFO) is an effective technique for the treatment of lateral patellar instability (LPI) in patients with concomitant moderate to severe valgus malalignment. Patellar maltracking and subluxation are corrected via neutralization of some of the laterally directed forces on the patella due to the valgus deformity. This can be accomplished with a distal femoral lateral opening-wedge or medial closing-wedge osteotomy and medial soft tissue stabilization. A medial closing-wedge osteotomy offers the advantages of immediate weight bearing and a single incision in cases requiring patellofemoral soft tissue stabilization. In this article, we describe our preferred operative technique for a medial closing-wedge DFO using a femoral locking plate and medial patellofemoral ligament imbrication for the correction of LPI. PMID- 29349002 TI - Medial Patellofemoral Ligament Reconstruction Using Dual Patella Docking Technique. AB - Medial patellofemoral ligament (MPFL) injuries are common in children and young adults. In patients with recurrent patellar dislocations with normal lower extremity alignment, anatomic reconstruction of the MPFL has been shown to restore patellar stability. We describe a technique that creates an anatomic reconstruction using a dual docking technique into the patella. Our technique is simple and efficacious for reconstructing the MPFL without implant fixation in the patella, allowing a maximal bone-tendon interface for healing. PMID- 29349003 TI - Arthroscopic Anterior Shoulder Stabilization With Incorporation of a Comminuted Bony Bankart Lesion. AB - Bony Bankart lesions are a common finding in patients with anterior glenohumeral dislocation. Although there are no defined guidelines, small bony Bankart fractures are typically treated arthroscopically with suture anchors. The 2 main techniques used are double- and single-row suture anchor stabilization, with debate over superiority. Biomechanical studies have shown improved reduction and stabilization with the double-row over the single-row suture anchor technique; however, this has not been reported for small or comminuted bony fragments. Both techniques have shown promising preliminary clinical outcomes. In this Technical Note, we describe our preferred technique for arthroscopic instability repair using a single-row all-suture anchor method with the incorporation of a comminuted bony Bankart fragment in the lateral decubitus position. PMID- 29349004 TI - Arthroscopic Treatment of a Malunion of a Posteromedial Tubercle Fracture of the Talus. AB - Posteromedial ankle impingement is rare and uncommonly associated with a fracture. Bone resection of the fragment is the recommended treatment. In this report, we describe the step-by-step surgical technique of arthroscopic resection of a malunion of a posteromedial talus fracture to correct the impingement. PMID- 29349005 TI - Arthroscopic Elbow Osteocapsular Arthroplasty. AB - Treatment of primary elbow osteoarthritis in the young active patient less than 50 years old presents a treatment challenge to the practicing orthopaedic surgeon. Following failure of nonoperative management, surgical goals are aimed at reducing pain and improving joint mobility from bony impingement. Arthroscopic osteocapsular arthroplasty is a viable treatment option with few post-operative limitations. In contrast, total elbow arthroplasty is considered a salvage option in this patient population given the activity restrictions imposed. Osteocapsular arthroplasty combines soft tissue and bony debridement, osteophyte/loose body removal, synovectomy, capsular release, and bony contouring of the humerus and ulna to allow impingement-free range of motion. PMID- 29349006 TI - Simultaneous Bilateral Knee Valgus Stress Radiographic Technique. AB - The medial collateral ligament is the most commonly injured knee ligament. Valgus stress radiographs are reported to be an effective way to quantify the medial compartment opening. However, most of the techniques require the presence of a physician in the radiograph room to apply a manual valgus stress force, and can only be performed in 1 knee at a time. These techniques, although extremely effective, increase radiation exposure to physicians, are time consuming, and require additional radiographs to compare the side-to-side difference. The purpose of this Technical Note is to describe our preferred valgus stress radiographic technique to evaluate medial side laxity, which offers several advantages compared with conventional manual techniques. PMID- 29349007 TI - Anterior Cruciate Ligament Primary Repair With Independent Tensioning of the Anteromedial and Posterolateral Bundles. AB - This procedure represents an update on traditional primary repair methods by taking advantage of technological advancements to optimize soft tissue fixation and allow for an anatomic double-bundle primary repair with independent bundle tensioning and an internal brace construct to restore normal anterior cruciate ligament biomechanics. PMID- 29349008 TI - Meniscal Allograft Transplantation Made Simple: Bridge and Slot Technique. AB - Over recent years, appreciation for the critical role of the meniscus in joint biomechanics has led to an emphasis on meniscal preservation. Meniscal allograft transplant (MAT) is a promising biological solution for the symptomatic young patient with a meniscus-deficient knee that has not developed advanced osteoarthritis. As surgical techniques are refined and outcomes continue to improve, it is vital to consider the utility of such procedures and offer a straightforward approach to MAT. This article and accompanying video provide a step-by-step tutorial on how to perform a MAT using the bridge and slot technique, its key pearls and pitfalls as well as the relevant advantages and disadvantages of MAT. PMID- 29349009 TI - Arthroscopic Repair of Type II SLAP Tears Using Suture Anchor Technique. AB - Arthroscopic SLAP tear repair has become an increasingly used treatment for patients presenting with symptomatic SLAP tears after failed nonoperative management. Debridement, SLAP repair, and open or arthroscopic biceps tenodesis or tenotomy have been used for the treatment of SLAP tears. Various techniques for repair have been described, and furthermore, there is a high incidence of concomitant pathology of the shoulder. Repair remains an excellent option in isolated SLAP tears amenable to repair, with excellent outcomes in well-indicated patients. We present a method for repairing a SLAP tear using standard suture anchor fixation, anterior and posterior portals, and an accessory portal of Wilmington. Adequate labral repair can be achieved with this technique in patients with no concomitant biceps pathology. This report highlights this technique for SLAP repair in patients with isolated symptomatic SLAP tears that have failed conservative management. PMID- 29349010 TI - Arthroscopic Repair of Hip Labrum With Suture Anchors. AB - The acetabular labrum and the transverse acetabular ligament form a continuous ring of tissue on the periphery of the acetabulum that provides a seal for the hip joint and increases the surface area to spread load distribution during weight-bearing. When a labral tear is suspected, the treatment algorithm always begins with conservative management, including physical therapy and nonsteroidal anti-inflammatory drugs. When conservative management fails, patients become candidates for arthroscopic labral repair. In the last 2 decades, the rate of hip arthroscopy has increased nearly 4-fold. However, as hip arthroscopy is performed more frequently, there is a need for a proper technique to minimize morbidity, because hip arthroscopy has been known to have a steep learning curve. We present a method for arthroscopic hip labral repair using suture anchors without a capsular repair. This Technical Note highlights our technique for labral repair, along with pearls and pitfalls of hip arthroscopy. PMID- 29349011 TI - Middle Glenohumeral Ligament Abrasion Causing Upper Subscapularis Tear. AB - The middle glenohumeral ligament (MGHL) typically contributes partially to the anterior stability of the shoulder. In a very limited number of cases, the MGHL can cause abrasion on the upper edge of the subscapularis causing persistent pain symptoms for patients. The condition is exacerbated by internal rotation of the arm. In this Technical Note, we describe this entity and call it the SAM lesion (Subscapularis Abrasion from the MGHL). We present a technique of addressing this lesion. PMID- 29349012 TI - Arthroscopic Reduction and Internal Fixation of a Rim Fracture. AB - Femoroacetabular impingement is uncommonly associated to a rim fracture. Complete resection of the fragment might result in iatrogenic instability or poor femoral head coverage. In this report, we describe the step-by-step surgical technique of arthroscopic partial resection of a rim fracture, reduction and internal fixation of the remaining fragment to correct the impingement, and preserve the adequate acetabular coverage. PMID- 29349013 TI - Open-Wedge Valgus High Tibial Osteotomy Technique With Inverted L-Shaped Configuration. AB - High tibial osteotomy (HTO) is a useful alternative in the treatment of symptomatic varus malalignment. However, among its drawbacks is the tendency to decrease patellar height and increase the posterior tibial slope. The increased tibial slope increases anterior cruciate ligament tension and may compromise its function. On the other hand, patella baja often causes anterior knee pain and, over time, may favor degeneration of the patellofemoral joint. The aim of this study is to describe a technical modification of the standard open-wedge HTO. It consists of a double inverted L-shaped cut, which includes the anterior tibial tuberosity in the proximal fragment, to avoid any alteration of patellar height and control the eventual increase of the posterior tibial slope. PMID- 29349014 TI - Graft Preparation Technique to Optimize Hamstring Graft Diameter for Anterior Cruciate Ligament Reconstruction. AB - Hamstring autografts are frequently used for anterior cruciate ligament reconstruction. The inherent variability in graft diameter has been stated as a disadvantage in its use because the presence of smaller graft diameters has been correlated with increased risk of re-rupture. Several techniques have been described to address this concern. Modifications of the basic Graftlink technique allows for increased control over final graft diameter using a standard harvest of the semitendinosus tendon with or without the gracilis tendon, and results in a graft of adequate length and diameter in all patients with rigid cortical fixation on the femur and tibia. PMID- 29349015 TI - Patellar Tendon Repair With Ipsilateral Semitendinosus Autograft Augmentation. AB - Patellar tendon ruptures are rare but potentially devastating injuries. Acute repair after patellar tendon rupture affords the best opportunity for tension free restoration of the extensor mechanism. Biological augmentation of primary repair is believed to decrease strain across the repair site and reduce the risk of rerupture. We present a technique for primary patellar tendon repair with bidirectional fixation using transosseous tunnels, suture anchor fixation, and ipsilateral hamstring autograft augmentation in a distal patellar pole socket. PMID- 29349016 TI - The External Rotation Radiographic Technique for Posterolateral Injury. AB - Posterolateral corner injuries are a severe and often unrecognized pathology. Injuries to these structures are difficult to identify using magnetic resonance images. Physical examination tests including the dial test, frog-leg test, and varus stress test can be difficult to perform. In addition it is difficult to correctly evaluate the results in a multiligament injury setting. The correct diagnosis of this pathology is essential to determine the proper treatment and improve outcomes. Furthermore, failure to recognize this pathology is associated with a high risk of failure following isolated anterior cruciate ligament reconstructions. The purpose of this Technical Note is to present an alternative method for the evaluation of posterolateral corner injuries using radiographic images. PMID- 29349017 TI - Simultaneous Radiographic Technique to Evaluate Ankle Instability. AB - The use of ankle stress radiographs is common to evaluate ankle instability. However, the majority of the studies report the use of a manual method to apply the stress, increasing radiation exposure to the physician. Furthermore, as reported in other studies, the force applied during the stress may vary between examiners according the strength and experience. In this Technical Note, we describe our preferred method to evaluate ankle instability, either using an inversion or eversion stress, avoiding the necessity of a physician in the radiographic room. PMID- 29349018 TI - Open 4-Compartment Fasciotomy for Chronic Exertional Compartment Syndrome of the Leg. AB - Chronic exertional compartment syndrome (CECS) is a significant source of lower extremity pain and morbidity in the athletic population. Although endoscopic techniques have been introduced, open fasciotomy remains the mainstay of surgical treatment because of the paucity of evidence in support of an endoscopic approach. The literature on surgical management of CECS is mixed, and overall success rates are modest at best. Optimizing surgical technique, including prevention of neurovascular injury and wound complications, can make a significant impact on the clinical outcome. Here we present our surgical technique, including pearls and pitfalls, for open 4-compartment fasciotomy for treatment of chronic exertional compartment syndrome. PMID- 29349019 TI - Arthroscopic Decompression of Greater Trochanteric Sciatic Nerve Impingement. AB - Therapeutic extra-articular hip endoscopy is an effective treatment of greater trochanteric sciatic nerve impingement. We describe in detail technical pearls of the procedure including positioning, portal placement, and steps to obtaining adequate decompression while avoiding iatrogenic nerve injury. PMID- 29349020 TI - An Arthroscopic Humeral Medializing Repair of the Supraspinatus. AB - Posterosuperior repair of the rotator cuff is one of the most frequently performed surgical procedures in the shoulder. Its aim is to fix the tendon back to the bone to restore anatomy, improve shoulder function, and prevent progression of cuff tear arthropathy and attendant muscle degeneration. Despite technical advances in this procedure, in some cases, the tendon cannot be fixed back to the footprint without excessive tension on the repair. In young patients or in patients with low-grade muscle atrophy and fatty degeneration (Goutallier grade 1 or 2), it is mandatory to attempt fixation of the tendon to restore functional anatomy and prevent further muscle degeneration. In such cases, an arthroscopic medialized reinsertion of the supraspinatus may be considered. We describe an arthroscopic humeral medializing repair of the supraspinatus tendon that allows for a tension-free repair of the supraspinatus using common portals and instruments. The goal of this technique is to obtain tendon healing, restore functional anatomy, and prevent atrophy and fatty degeneration of the muscles of the rotator cuff. PMID- 29349021 TI - Arthroscopic Repair of Medial Transtendinous Rotator Cuff Tears. AB - Rotator cuff tears are extremely common in the adult population, and medial transtendinous rotator cuff tears, although rare, have recently been reported in the literature. These tears are almost always traumatic, which is a common indication for surgical management. It is necessary to consider these tears as a distinct subset when planning for rotator cuff repair because traditional repair techniques would overtension the tendon, increasing the risk for failure of the repair. The objective of this Technical Note is to describe an arthroscopic repair technique for these tears that avoids overtensioning the rotator cuff while still using repair techniques that are familiar to the arthroscopic shoulder surgeon. PMID- 29349022 TI - Arthroscopic Delivery of Injectable Bone Graft for Staged Revision Anterior Cruciate Ligament Reconstruction. AB - Bone defects caused by femoral and tibial tunnel enlargement can pose a significant technical challenge when planning to perform revision anterior cruciate ligament reconstruction. A number of options have been described for managing osseous deficiencies, including the use of large autograft or allograft bone dowels to provide sufficient tunnel fill and subsequent structural support for revision surgery. These techniques can be time-consuming and technically demanding to ensure proper tunnel fill and press-fit stability of the bone graft. We describe our preferred technique for arthroscopic bone grafting using a mixture of demineralized cortical bone graft augmented with platelet-rich plasma delivered through a simple delivery system. PMID- 29349023 TI - Bipolar Acromioclavicular Joint Resection. AB - Acromioclavicular (AC) joint arthropathy remains one of the most common causes of shoulder pain. In the case of AC joint arthropathy resistant to conservative treatment, most authors have recognized distal clavicle resection as the gold standard treatment. However, some challenges remain to be solved. One is the difficulty in visualization of the superior and posterior part of the distal clavicle from the midlateral portal, causing an incomplete resection of the distal clavicle. This could potentially lead to unresolved pain and therefore surgical failure. We propose a technique for arthroscopic resection of the distal clavicle and the medial portion of the acromion, without any added portal: bipolar AC joint resection. The term "bipolar" is used because both the acromion and the clavicle are resected, without injuring the superior capsule. PMID- 29349024 TI - The Crossing Internal Suture Augmentation Technique to Protect the All-Inside Anterior Cruciate Ligament Reconstruction Graft. AB - The crossing internal suture augmentation technique is an all-inside technique of anterior cruciate ligament reconstruction with augmentation of the hamstring tendon autograft with a braided ultrahigh-molecular-weight polyester-polyethylene suture tape resting on the adjustable cortical buttons on both the femoral and tibial sides. The internal suture augmentation acts as a backbone supporting and protecting the graft until the process of healing and ligamentization of the graft is completed. The ends of the suture tape are tied on the tibial button and additionally fixed to the tibia with a knotless anchor as a backup fixation with the knee in full extension. The technique has the advantages of being minimally invasive with small incisions and allowing preservation of the bone stock through the use of sockets. It also allows early return to activity thanks to the more secure rehabilitation and prevents early failure and stretching of the graft. PMID- 29349025 TI - Anterior Capsule Reconstruction for Irreparable Subscapularis Tears. AB - A subscapularis complete tear presents its own challenges in management. The glenohumeral biomechanics and force couple are reliant on a competent and functioning subscapularis muscle. An irreparable subscapularis makes those same challenges even more difficult to address. Traditionally, this problem has been addressed with tendon transfers, including pectoralis major or latissimus dorsi. These techniques can alter the ideal biomechanics of the shoulder and have high rates or failure. Iliotibial autograft or tibialis anterior have also been wrought with high failure rates. Recently, the superior capsular reconstruction has been described for irreparable tears of the supraspinatus and infraspinatus. Theoretically, this procedure can act as a check rein against subluxation, and may serve to reconnect the force couples of the rotator cuff. Anterior escape may represent a similar challenge when the irreparable rotator cuff tendon is the subscapularis. To address this, we describe an open anterior capsule reconstruction technique with an acellular dermal graft. We theorize that this procedure may serve in a similar capacity to its superior capsular counterpart. PMID- 29349026 TI - Arthroscopic Management of Posterior Instability due to "Floating" Posterior Inferior Glenohumeral Ligament Lesions. AB - The "floating" posterior inferior glenohumeral ligament (floating PIGHL) is an uncommon cause of posterior shoulder instability. This pathologic lesion, defined as detachment of both the origin of the PIGHL (posterior Bankart lesion) and insertion of the of the PIGHL from its humeral head insertion site, often results in significant and persistent shoulder instability symptoms. An effective surgical technique for arthroscopic repair of a floating PIGHL lesion is described and demonstrated. PMID- 29349027 TI - Arthroscopic Repair of Massive Subscapularis and Supraspinatus Tear by Double-Row Knotless Technique. AB - Subscapularis is the most powerful muscle in the rotator cuff. A steep learning curve and constrained space anteriorly make the repair difficult. In massive tears of the rotator cuff, repair of the subscapularis initially makes the massive supraspinatus tear repairable. We present our technique to repair subscapularis and supraspinatus tear by double-row anchors in a knotless and tension-free manner. This technique can be done in partial or full-thickness tears of the upper subscapularis. PMID- 29349028 TI - Knotless Suture Bridge Technique in High-Grade Bursal-Sided Rotator Cuff Tears. Is This The Way Forward? AB - We present our technique in managing high-grade bursal-sided rotator cuff tears. In this technique, the remaining intact cuff tissue is not sacrificed. The suture bridge technique is used to uniformly tension the torn tissue to the rotator cuff footprint. No knots are tied on the rotator cuff to minimize the tension on the cuff. The sutures are then anchored on the lateral cortex of the humerus. This technique allows repair with minimum tension while preserving the original length of the rotator cuff. PMID- 29349029 TI - Puncture Capsulotomy During Hip Arthroscopy for Femoroacetabular Impingement: Preserving Anatomy and Biomechanics. AB - We describe an arthroscopic technique for the treatment of labral pathology and femoroacetabular impingement that provides excellent access to the central and peripheral compartments while preserving the biomechanically crucial components of hip joint stability. The hip capsule and the ligaments within it have been shown to be integral to hip biomechanical stability. Other popular techniques such as interportal and T-capsulotomy inherently damage the capsuloligamentous complex of the hip and can be associated with postoperative gross instability, micro-instability, heterotopic ossification, and seroma. Capsular closure may mitigate some of these effects but has been associated with capsular insufficiency and requires postoperative restrictions that can be prolonged. Our surgical technique focuses on careful portal placement, replacement when necessary, use of a switching stick to maximize peripheral compartment visualization, and joint access in the most minimally invasive manner while avoiding complications associated with extended capsulotomy. The objective of this Technical Note is to describe a technique by which full access to the joint can be obtained while not disrupting the biomechanics of the joint capsule. PMID- 29349030 TI - Augmentation of Patellar Tendon Repair With Autologous Semitendinosus Graft-Porto Technique. AB - Patellar tendon ruptures can lead to significant functional deficiency of the extensor mechanism of the knee. These injuries, because of their inherent nature and associated complications, may require a complex treatment and remains a challenge for orthopaedic surgeons. Current surgical techniques present significant complications, including patellar fracture, damage to patellar articular cartilage, and abnormal patella height. This note describes a surgical technique to provide an additional reinforcement to the patellar tendon repair with a semitendinous autograft, without the necessity to perform any transosseous tunnels at the patella bone. First, the patellar tendon is repaired with an end to-end technique and the semitendinous tendon is harvested. A transosseous tunnel at the tibial tubercle is drilled and 2 rents are made, both medial and lateral to the retinaculum at the level of the intermedial segment of the patella close to the patellar margin. The graft is passed through the tunnel and rents in a U shaped form. The graft is sutured along the length of the patellar tendon on both margins in tension at 30 degrees of knee flexion. Fluoroscopy imaging is performed to assess the patella height. This technique provides a significant augmentation of patellar tendon, avoiding the potential patella bone tunnel complications. PMID- 29349031 TI - Modified Elmslie-Trillat Procedure for Distal Realignment of Patella Tendon. AB - Patellofemoral dysfunction, due to either a patellofemoral malalignment or patellar instability, is a complex and debilitating condition that significantly decreases the knee function. Conservative management may yield significant clinical outcomes; however, when morphologic anomalies are identified, the surgical approach should be employed. Hence, several surgical procedures have been described in the scientific literature aiming the correction of underlying extensor mechanism malalignments. Still, the rate of complications is higher than desirable. The described technique is based on the principles of transferring the tibial tubercle medially as described in the Elmslie-Trillat technique. However, a curvilinear horizontal cut is made prior to the vertical cut, which raises a thick osseous fragment and allows the formation of a gutter when the osseous fragment is moved medially. Whereas the horizontal gutter provides stability to the bone fragment, the thicker dimension of the osseous fragment and retention of the distal attachment significantly enhances the osteotomy union. Hence, adequate pain relief and stability with very low postoperative morbidity could be achieved. The purpose of this surgical note is to describe a modification to the Elmslie-Trillat technique to treat patellofemoral dysfunctions, achieving a higher osseous stability and decreased postoperative morbidity. PMID- 29349032 TI - Revision Acromioclavicular-Coracoclavicular Reconstruction: Use of Precontoured Button and 2 Allografts. AB - Injuries to the acromioclavicular (AC) joint are common, particularly in the young and active population. Approximately 9% of all shoulder girdle injuries involve the AC joint, and AC joint dislocations represent approximately 8% of all joint dislocations throughout the body. AC joint injuries are graded as type I through type VI according to the Rockwood classification. Type I and II injuries are typically treated nonoperatively, whereas type IV, V, and VI injuries are most often treated surgically. A variety of surgical techniques have been described, including anatomic and nonanatomic reconstruction. However, up to 80% of patients go on to lose radiographic reduction, and between 20% and 30% have complications leading to reoperation. Therefore, the objective of this Technical Note is to describe our preferred technique for the treatment of AC joint instability in the revision setting. This technique uses a Dog Bone Button (Arthrex, Naples, FL) and 2 allografts. PMID- 29349033 TI - Arthroscopic Reduction and Fixation of Tibial Spine Avulsion Fractures by a Stainless Steel Wiring Technique. AB - Several techniques of arthroscopic treatment of tibial spine avulsion fractures have been described in the literature. These techniques include the use of various fixation devices such as screws, K-wires, wiring, sutures, and suture anchors. In this study, we evaluate a new wiring technique for the treatment of these injuries. This technique involves fixation by stainless steel tension wires passed over the fractured spine and tied over a bone bridge. The advantages of this technique are that it aids in reduction, allows for compression of the tibial spine fragment anatomically in its fracture bed, provides stable fixation in difficult comminuted fractures, and allows for early mobilization and weight bearing because of the solid fixation. PMID- 29349034 TI - Arthroscopic Microfracture of Hip Chondral Lesions. AB - Microfracture of hip chondral lesions has been performed for more than a decade with modified treatment principles and techniques from knee arthroscopy. This note and accompanying video review the pertinent techniques, pearls, and pitfalls of the microfracture procedure in the treatment of hip chondral lesions. After debridement of damaged chondral tissue, the size of the lesion is approximated to determine the number of microfracture holes to create. The working portal may be adjusted based on the site of the lesion. Microfracture picks of different angles are used to ensure perpendicular advancement to a depth of 3 to 4 mm in the subchondral bone. The holes are placed at a gap of approximately 3 to 4 mm. The debris is washed out to obtain open holes connecting the marrow with the articular surface. The microfracture procedure should be performed near the end of the overall procedure to secure the bleeding bone marrow within the joint and prevent washout. PMID- 29349035 TI - Successful treatment of a patient with chyluria due to lymphangioleiomyomatosis using sirolimus. AB - Lymphangioleiomyomatosis (LAM) is a rare and progressive neoplastic disease of young woman, characterized by the proliferation of abnormal smooth muscle-like cells (LAM cells) in the lungs and axial lymphatics. A 44-year-old woman was referred to our hospital because pleural effusion was detected during a health checkup. She had chylothorax, chylous ascites, and chyluria, and her computed tomography scan showed a solid tumor in the pelvis. Surgical biopsy was performed; she was diagnosed as having LAM. We could not control the fluid collection and chyluria using standard medical treatments. Therefore, we chose to administer sirolimus, and her symptoms dramatically improved. The mechanism of chyluria presumably involved LAM cell infiltrates in the ureter via the lymphatic vessel flow, which causes LAM to develop because of ureter wall exposure. PMID- 29349036 TI - Alternative topical anesthesia for bronchoscopy in a case of severe lidocaine allergy. AB - Lidocaine allergy presents a unique difficulty for both patients and providers who undergo/perform bronchoscopy. We present a case of a 73 yo male with severe lidocaine allergy who successfully underwent bronchoscopy with chloroprocaine topical anesthesia and discuss alternative topical anesthetic agents that may be used in this special situation. PMID- 29349037 TI - Family history of alcoholism and the human brain response to oral sucrose. AB - A heightened hedonic response to sweet tastes has been associated with increased alcohol preference and alcohol consumption in both humans and animals. The principal goal of this study was to examine blood oxygenation level dependent (BOLD) activation to high- and low-concentration sweet solutions in subjects who are either positive (FHP) or negative (FHN) for a family history of alcoholism. Seventy-four non-treatment seeking, community-recruited, healthy volunteers (22.8 +/- 1.6 SD years; 43% men) rated a range of sucrose concentrations in a taste test and underwent functional magnetic resonance imaging (fMRI) during oral delivery of water, 0.83 M, and 0.10 M sucrose. Sucrose compared to water produced robust activation in primary gustatory cortex, ventral insula, amygdala, and ventral striatum. FHP subjects displayed greater bilateral amygdala activation than FHN subjects in the low sucrose concentration (0.10 M). In secondary analyses, the right amygdala response to the 0.10 M sucrose was greatest in FHP women. When accounting for group differences in drinks per week, the family history groups remained significantly different in their right amygdala response to 0.10 M sucrose. Our findings suggest that the brain response to oral sucrose differs with a family history of alcoholism, and that this response to a mildly reinforcing primary reward might be an endophenotypic marker of alcoholism risk. PMID- 29349039 TI - Engineering Escherichia coli for the production of terpene mixture enriched in caryophyllene and caryophyllene alcohol as potential aviation fuel compounds. AB - Recent studies have revealed that caryophyllene and its stereoisomers not only exhibit multiple biological activities but also have desired properties as renewable candidates for ground transportation and jet fuel applications. This study presents the first significant production of caryophyllene and caryolan-1 ol by an engineered E. coli with heterologous expression of mevalonate pathway genes with a caryophyllene synthase and a caryolan-1-ol synthase. By optimizing metabolic flux and fermentation parameters, the engineered strains yielded 449 mg/L of total terpene, including 406 mg/L sesquiterpene with 100 mg/L caryophyllene and 10 mg/L caryolan-1-ol. Furthermore, a marine microalgae hydrolysate was used as the sole carbon source for the production of caryophyllene and other terpene compounds. Under the optimal fermentation conditions, 360 mg/L of total terpene, 322 mg/L of sesquiterpene, and 75 mg/L caryophyllene were obtained from the pretreated algae hydrolysates. The highest yields achieved on the biomass basis were 48 mg total terpene/g algae and 10 mg caryophyllene/g algae and the caryophyllene yield is approximately ten times higher than that from plant tissues by solvent extraction. The study provides a sustainable alternative for production of caryophyllene and its alcohol from microalgae biomass as potential candidates for next generation aviation fuels. PMID- 29349038 TI - Abnormal neural hierarchy in processing of verbal information in patients with schizophrenia. AB - Previous research indicates abnormal comprehension of verbal information in patients with schizophrenia. Yet the neural mechanism underlying the breakdown of verbal information processing in schizophrenia is poorly understood. Imaging studies in healthy populations have shown a network of brain areas involved in hierarchical processing of verbal information over time. Here, we identified critical aspects of this hierarchy, examining patients with schizophrenia. Using functional magnetic resonance imaging, we examined various levels of information comprehension elicited by naturally presented verbal stimuli; from a set of randomly shuffled words to an intact story. Specifically, patients with first episode schizophrenia (N = 15), their non-manifesting siblings (N = 14) and healthy controls (N = 15) listened to a narrated story and randomly scrambled versions of it. To quantify the degree of dissimilarity between the groups, we adopted an inter-subject correlation (inter-SC) approach, which estimates differences in synchronization of neural responses within and between groups. The temporal topography found in healthy and siblings groups were consistent with our previous findings - high synchronization in responses from early sensory toward high order perceptual and cognitive areas. In patients with schizophrenia, stimuli with short and intermediate temporal scales evoked a typical pattern of reliable responses, whereas story condition (long temporal scale) revealed robust and widespread disruption of the inter-SCs. In addition, the more similar the neural activity of patients with schizophrenia was to the average response in the healthy group, the less severe the positive symptoms of the patients. Our findings suggest that system-level neural indication of abnormal verbal information processing in schizophrenia reflects disease manifestations. PMID- 29349040 TI - An unusual case of primary melioidotic prostatic abscess complicated by perianal abscess. AB - Burkholderia pseudomallei is recognized to cause severe and fatal infections. Most of the infections caused by this facultative intracellular gram-negative bacterium are pneumonia, soft tissue, genito-urinary and central nervous system infection. We report an unusual case of primary prostatic abscess complicated by perianal abscess caused by Burkholderia pseudomallei. Melioidosis related anorectal infections have not been previously reported in the literature. PMID- 29349041 TI - Unusual cause of severe diabetic ketoacidosis precipitated by Streptococcus bovis/equinus (SBSEC) bacteremia: Case report and review of literature. AB - Diabetic ketoacidosis is a feared complication in patients with diabetes mellitus and poses high risk of mortality and morbidity unless treated in timely manner. Infection is one of the most common precipitating factors for the development of diabetic ketoacidosis. Bacteremia with Group A and Group B beta hemolytic streptococcal strains are well known, however nonenterococcal Group D strains such as the Streptococcus bovis/Streptococcus equinus complex (SBSEC) still remains an understudied entity. Here we present a case of a 35-year-old Type I diabetic female presenting with severe diabetic ketoacidosis with overlapping features of hyperosmolar hyperglycemia, precipitated by Streptococcus alactolyticus bacteremia, successfully treated with four-week course of parenteral ceftriaxone. This case report emphasizes the potential importance of SBSEC as an emerging pathologic strain and culprit for triggering diabetic ketoacidosis which requires prompt diagnosis and targeted therapy. PMID- 29349042 TI - An optimized targeted Next-Generation Sequencing approach for sensitive detection of single nucleotide variants. AB - Monitoring of minimal residual disease (MRD) has become an important clinical aspect for early relapse detection during follow-up care after cancer treatment. Still, the sensitive detection of single base pair point mutations via Next Generation Sequencing (NGS) is hampered mainly due to high substitution error rates. We evaluated the use of NGS for the detection of low-level variants on an Ion Torrent PGM system. As a model case we used the c.1849G > T (p.Val617Phe) mutation of the JAK2-gene. Several reaction parameters (e.g. choice of DNA polymerase) were evaluated and a comprehensive analysis of substitution errors was performed. Using optimized conditions, we reliably detected JAK2 c.1849G > T VAFs in the range of 0.01-0.0015% which, in combination with results obtained from clinical data, validated the feasibility of NGS-based MRD detection. Particularly, PCR-induced transitions (mainly G > A and C > T) were the major source of error, which could be significantly reduced by the application of proofreading enzymes. The integration of NGS results for several common point mutations in various oncogenes (i.e. IDH1 and 2, c-KIT, DNMT3A, NRAS, KRAS, BRAF) revealed that the prevalent transition vs. transversion bias (3.57:1) has an impact on site-specific detection limits of low-level mutations. These results may help to select suitable markers for MRD detection and to identify individual cut-offs for detection and quantification. PMID- 29349043 TI - Vermicomposting and anaerobic digestion - viable alternative options for terrestrial weed management - A review. AB - The management of terrestrial weed is of great concern for the scientific community as these weeds cause adverse effect in different ecosystems like forest, agriculture and urban. The widespread of these weeds by their adaptive capability and morphological advancement is difficult to control. Parthenium hysterophorous, Lantana camara, Saccharum spontaneum, Ageratum conyzoides are the weeds that spread all over the world. There are various management practices employed for the control of this weeds. But all of these practices have some drawbacks those are neither environment friendly nor economical. In this paper a review has been done to evaluate various alternative management practices for these terrestrial weeds and to analyze their feasibility. Vermicomposting and anaerobic digestion can be viable alternative option which is cost effective as well. There are few studies regarding vermicomposting and anaerobic digestions of terrestrial weeds are done. PMID- 29349044 TI - Evaluating the effect of enzymatic pretreatment on the anaerobic digestibility of pulp and paper biosludge. AB - Anaerobic digestion of biosludge has not yet been implemented in pulp mills due to low biogas yields. Enzymatic pretreatment of biosludge has shown improvements in biogas yields but results are varied. A key limitation of previous studies is that they fail to consider the COD contribution from the enzyme solutions. The aim of this study was to systematically investigate the potential for enzymatic pretreatment on the anaerobic digestibility of pulp mill biosludge. Out of the six enzymes tested, four enhanced the anaerobic digestibility of biosludge. At the end of the BMP, a maximum improvement of 26% in biogas yield was observed with protease from B. licheniformis. There was no correlation between enzymatic activities on standard substrates and/or on biosludge and the effect of enzymes on biogas yields. Enzymes have potential for improving biosludge anaerobic digestibility but more research on optimal conditions and potential synergies with other pretreatment is needed. PMID- 29349045 TI - Advantages, Disadvantages, Indications, Contraindications and Surgical Technique of Laryngeal Airway Mask. AB - The beauty of the laryngeal mask is that it forms an air tight seal enclosing the larynx rather than plugging the pharynx, and avoid airway obstruction in the oropharynx. The goal of its development was to create an intermediate form of airway management face mask and endotracheal tube. Indication for its use includes any procedure that would normally involve the use of a face mask. The laryngeal mask airway was designed as a new concept in airway management and has been gaining a firm position in anesthetic practice. Despite wide spread use the definitive role of the laryngeal mask airway is yet to be established. In some situations, such as after failed tracheal intubation or in oral surgery its use is controversial. There are several unresolved issues, for example the effect of the laryngeal mask on regurgitation and whether or not cricoids pressure prevents placement of mask. We review the techniques of insertion, details of misplacement, and complications associated with use of the laryngeal mask. We then attempt to clarify the role of laryngeal mask in air way management during anesthesia, discussing the advantages and disadvantages as well as indications and contraindications of its use in oral and maxillofacial surgery. PMID- 29349046 TI - Reduction of Closed Frontal Sinus Fractures through Suprabrow Approach. AB - Background: The traditional approach for reduction of frontal sinus fractures is coronal incision. Inherent complications of the coronal approach include long scar, hair loss, and long operation time. We describe a simple approach for the reduction of frontal sinus anterior wall fractures using a suprabrow incision that is commonly used for brow lift. Methods: From March 2007 to October 2016, the authors identified patients with anterior wall frontal sinus fractures treated by open reduction through a suprabrow incision. Only cases with photographic/radiographic documentation and a minimum follow-up of 6 months were included. The incision line was designed to be at the upper margin of the eyebrow. Medical records and radiographic data were retrospectively reviewed. Surgical outcomes, cosmetic results, and complication were assessed. The patient scale of the patient and observer scar assessment scale was used to assess patient satisfaction for incisional scar at the 6-month follow-up. Results: Thirty-one patients underwent fracture reduction through a suprabrow approach during the study period, with a mean follow-up of 41 months. No patients showed any recurrent displacement, eyebrow asymmetry, or infection during follow-up. Thirteen patients reported their forehead paresthesia postoperatively, and 12 of them had preoperative symptom. One patient complained of incisional scar and underwent scar revision. All patients were satisfied with their eyebrow and forehead contour. Conclusion: The suprabrow approach allowed for an accurate reduction of the fractures in the anterior wall frontal sinus by providing direct visualization of the fracture. This transcutaneous approach can effectively restore forehead contour with acceptable postoperative complications and patient satisfaction. PMID- 29349047 TI - Reduction of the Isolated Anterior Wall of the Maxillary Sinus Fracture with Double Urinary Balloon Catheters and Fibrin Glue. AB - Background: Conservative treatment is performed for isolated anterior wall of the maxillary sinus fractures, in many cases when the fracture is clinically not severe and asymptomatic. Despite the absence of symptoms, complications such as sinusitis, rhinitis, and chronic purulent secretion may develop; therefore, successful reduction is required. We attempted to reduce the risk of complications using an alternative technique: reduction of the fracture with two urinary balloon catheters inserted through the maxillary ostium and fixation using fibrin glue, which minimizes the damage to the bony fragments and sinus mucosa. Methods: In this study, 38 patients who were diagnosed with an isolated anterior wall of the maxillary sinus fracture at our hospital between January 2014 and January 2017 were enrolled. The fracture site was exposed via the Caldwell-Luc approach followed by reduction through the insertion of two urinary balloon catheters using a nasal endoscope and fixation with fibrin glue. The sex, cause of fracture, physical examination, and presence of complications were examined and patient's medical records and facial bone computed tomography scans were analyzed. Results: Radiological evaluation showed that there was no evidence of collapsed reduction fragments. Although some patients had remaining symptoms of hypoesthesia (15%; 3 patients), there were no complications such as infection, rhinitis, sinusitis, and chronic purulent secretion at the surgical site. Conclusion: In this study, we present an alternative surgical technique using two urinary balloon catheters and fibrin glue for the successful reconstruction of an isolated anterior wall of the maxillary sinus fracture. This technique enables precise restoration with a reduced risk of complications. PMID- 29349048 TI - Versatility of Modified Nasolabial Flap in Oral and Maxillofacial Surgery. AB - Background: To evaluate the versatility and reach of modified nasolabial flap used in reconstruction of defects created in and around the oral cavity. Methods: A total number of 20 cases were selected. Out of which 13 were males and 7 females. The age of these patients ranged from 24-63 years. 29 modified nasolabial flaps were raised in twenty patients. Based on clinical and histopathological examination, out of 20 patients, 14 patients were diagnosed with oral submucous fibrosis, 3 with verrucous carcinoma, 1 with squamous papilloma, 1 with oro-antral fistula and 1 with traumatic loss of lower lip. Results: Minimum preoperative interincisal distance (IID) was 0 mm and maximum was 15 mm with mean of 6.00+/-4.76 mm in patients with oral submucous fibrosis and 12 months postoperatively minimum IID was 16 mm and maximum was 41 mm with mean of 28.00+/-8.96 mm. In one case, dehiscence (3.4%) was noted on the anterior tip for which tip revision was done. Bulky appearance of the flap intraorally was observed in 2 cases (6.9%). Five (17.2%) among the 29 flaps had visible scar at the donor site postoperatively up to 3 months. Conclusion: Numerous reconstructive techniques have been employed in the reconstruction of small to intermediate sized defects of oral cavity. Modified nasolabial flap is a versatile flap which has robust vascularity and can be successfully used with minimal complications. It can be rotated intraorally to extend from the soft palate to the lip. Thus, it can be used efficiently to treat the small defects of the oral cavity as well as recreating lost lip structure. PMID- 29349049 TI - The Reliability of the Transconjunctival Approach for Orbital Exposure: Measurement of Positional Changes in the Lower Eyelid. AB - Background: Lower eyelid incisions are widely used for the orbital approach in periorbital trauma and aesthetic surgery. In general, the subciliary approach is known to cause disposition of the lower eyelid by scarring the anterior lamella in some cases. On the other hand, many surgeons believe that a transconjunctival approach usually does not result in such complications and is a reliable method. We measured positional changes in the lower eyelid in blowout fracture repair since entropion is one of the most serious complications of the transconjunctival orbital approach. Methods: To measure the positional changes in the lower eyelids, we analyzed preoperative and postoperative photographs over various time intervals. In the analysis of the photographs, marginal reflex distance 2 (MRD2) and eyelash angle were used as an index of eyelid position. Statistical analyses were performed to identify the significance in the positional changes. All patients underwent orbital reconstruction through a transconjunctival incision by a single plastic surgeon. Results: In 42 blowout fracture patients, there was no statistical significant difference in the MRD2 and eyelash angle. Furthermore, there were no clinical complications, such as infection, hematoma, bleeding, or implant protrusion, during the follow-up periods. Conclusion: The advantages of the transconjunctival approach for orbital access include minimal scarring and a lower risk of eyelid displacement compared with other approaches. Based on these results, we recommend the transconjunctival approach for orbital exposure as a safe and reliable method. PMID- 29349050 TI - A Comparison of the Local Flap and Skin Graft by Location of Face in Reconstruction after Resection of Facial Skin Cancer. AB - Background: Surgery for reconstruction of defects after surgery should be performed selectively and the many points must be considered. The authors conducted this study to compare the local flap and skin graft by facial location in the reconstruction after resection of facial skin cancer. Methods: The authors performed the study in patients that had received treatment in Department of Plastic Surgery, Gyeongsang National University. The cases were analyzed according to the reconstruction methods for the defects after surgery, sex, age, tumor site, and tumor size. Additionally, the authors compared differences of aesthetic satisfaction (out of 5 points) of patients in the local flap and skin graft by facial location after resection of facial skin cancer by dividing the face into eight areas. Results: A total of 153 cases were confirmed. The most common facial skin cancer was basal cell carcinoma (56.8%, 87 cases), followed by squamous cell carcinoma (37.2%, 57 cases) and bowen's disease (5.8%, 9 cases). The most common reconstruction method was local flap 119 cases (77.7%), followed by skin graft 34 cases (22.3%). 86 patients answered the questionnaire and mean satisfaction of the local flap and skin graft were 4.3 and 3.5 (p=0.04), respectively, indicating that satisfaction of local flap was significantly high. Conclusion: When comparing satisfaction of patients according to results, local flap shows excellent effects in functional and cosmetic aspects would be able to provide excellent results rather than using a skin graft with poor touch and tone compared to the surrounding normal skin. PMID- 29349051 TI - Anisakiasis Involving the Oral Mucosa. AB - Anisakis is a parasite with life cycles involving fish and marine mammals. Human infection, anisakiasis, occurs with the ingestion of raw infected seafood and usually presents with acute or chronic gastrointestinal symptoms from esophageal or gastric invasion. We report a rare caseinvolving the oral cavity. A 39-year old male presented with oral and sub-sternal pain of one day duration after eating raw cuttlefish. Physical examination revealed areas of erythema and edema with a central white foreign particle on the labial and buccal mucosa. With microscopic field we could remove the foreign material from the lesions. The foreign material was confirmed to be Anisakis. Anisakis was also removed from the esophagus by esophagogastroduodenoscopy. The patient was discharged the following day without complication. Anisakiasis is frequently reported in Korea and Japan, countries where raw seafood ingestion is popular. The symptoms of acute anisakiasis include pain, nausea, and vomiting and usually begin 2-12 hours after ingestion. The differential diagnosis includes food poisoning, acute gastritis, and acute pancreatitis. A history of raw seafood ingestion is important to the diagnosis of anisakiasis. Treatment is complete removal of the Anisakis to relieve acute symptoms and prevent chronic granulomatous inflammation. PMID- 29349052 TI - Malar Relocation with Reverse-L Osteotomy and Autogenous Bone Graft. AB - The zygomaticomaxillary complex (ZMC) functions as a buttress for the face and is the cornerstone to a person's aesthetic appearance, by both setting the midfacial width and providing prominence to the cheek. Malar deficiency is often acquired by blunt injury incurred in a traumatic accident, resulting in ZMC fracture. A 48 year-old male patient presented a right ZMC fracture after contusion injury by a baseball. He only received conservative management and later he suffered discomfort during mouth opening at the moment of mastication, due to trismus involving the temporomandibular joint. In the current case, we describe a surgical technique, by which the malar body is shifted anteriorly and laterally after combined oblique-vertical osteotomy. The technique presented, eventually restored the former aesthetic position of the malar complex and symmetry, and, moreover, improved mastication function. PMID- 29349053 TI - Myxoid Solitary Fibrous Tumor on the Scalp. AB - Myxoid solitary fibrous tumor (SFT) is very rare soft tissue neoplasm. It is microscopically composed of spindle cells which is individually separated by delicate band of collagen fibers. And this tumor cells are immunohisto chemistrically highlighted by CD34. Myxoid SFT has indolent clinical course and a good prognosis, so it is important to make a diagnosis because of its morphological similarities to myxoid spindle cell neoplasms that have different prognoses and treatment. We report the case of a 20-year-old female with a myxoid SFT found in the left temporo-parietal scalp. This case report appears to be the first reported scalp occurrence of this rare tumor. PMID- 29349054 TI - Post-Traumatic Peripheral Giant Osteoma in the Frontal Bone. AB - Osteomas are benign, slow-growing tumors that most frequently occur in the craniomaxillofacial region. These tumors are mostly asymptomatic and are generally found incidentally. A giant osteoma is generally considered to be greater than 30 mm in diameter or 110 g in weight. A 35-year-old female presented to us with complaints of a firm mass that showed continuous growth on the forehead following trauma. A hairline incision was made to expose the osteoma. Biopsy of the tumor confirmed a osteoma. There were no complications after surgery. Postoperative computed tomography revealed that the tumor was completely removed. Because a peripheral giant osteoma of the frontal bone with a history of trauma is a rare finding, thorough history-taking, physical examination, and preoperative imaging tests are needed for patients with a history of trauma to rule out a giant osteoma. PMID- 29349055 TI - Reconstruction of a Traumatic Cleft Earlobe Using a Combination of the Inverted V Shaped Excision Technique and Vertical Mattress Suture Method. AB - Traumatic cleft earlobes are a common problem encountered by plastic and reconstructive surgeons. Various techniques have been reported for the repair of traumatic cleft earlobes. Usually, the techniques of split earlobe repair are divided into two categories, namely straight- and broken-line repairs. Straight line repair is simple and easy, but scar contracture frequently results in notching of the inferior border of the lobule. It can be avoided by the broken line repair such as Z-plasty, L-plasty, or a V-shaped flap. Between April 2016 and February 2017, six patients who presented with traumatic cleft earlobe underwent surgical correction using a combination of the inverted V-shaped excision technique and vertical mattress suture method. All the patients were female and had a unilateral complete cleft earlobe. No postoperative notching of the inferior border the lobule occurred during 6-16 months of follow-up. Without the use of a broken-line repair, both the patients and the operators attained aesthetically satisfactory results. Therefore, the combination of the inverted V shaped excision technique and vertical mattress suture method is considered useful in the treatment of traumatic cleft earlobes. PMID- 29349056 TI - Sinus Tract Formation with Chronic Inflammatory Cystic Mass after Beta Tricalcium Phosphate Insertion. AB - Beta tricalcium phosphate (beta-TCP) is one of allogenic bone substitute which is known to have interconnected pores that draws cell and nutrients for bone generation. It has been resulted in good outcomes for bone defect coverage or augmentation. However, several studies have also reported negative outcomes and associated complications including unexpected formation of cystic mass, continuous pain and secretion. We present the case of a 36-year-old man with a right cheek cystic mass who had a history of right zygomaticomaxillary (ZM) complex fracture and surgical correction with beta-TCP powder insertion to ZM bone defect. Excisional biopsy under local anesthesia revealed calcified mass in a sinus tract which was found to be connected to the ZM bone defect site in postoperative computed tomography image. Further excision under general anesthesia was performed to remove the sinus tract and fine granules which filled the original defect site. Pathologic report revealed bony spicules and calcification materials with chronic foreign body reaction. Postoperative complications and recurrence were not reported. PMID- 29349057 TI - Ectopic Preauricular Sinus in a Facial Cleft and Microtia Patient. AB - Preauricular sinus is a congenital malformation that is very commonly encountered among the general population and it has especially high prevalence among Asians when compared to other ethnic groups. It can often go unnoticed or easily overlooked by the patient or even by doctors because most of them are asymptomatic and is most of the time only a tiny pit that can be trivial in terms of aesthetics. We report a very rare and unique case that has no precedence what so ever; hence no reported case in the literature: an ectopic preauricular sinus in a facial cleft and microsomia patient. PMID- 29349058 TI - Rhabdomyomatous Mesenchymal Hamartoma Presenting as a Midline Mass on a Chin. AB - A 17-month-old boy was evaluated for a midline mass on his chin. The mass was anchored to the mentalis muscle with a stalk-like structure. The pathological diagnosis of the mass was rhabdomyomatous mesenchymal hamartoma. This is the first report of rhabdomyomatous mesenchymal hamartoma presenting as a midline chin mass in Korean pediatric patients. PMID- 29349059 TI - Dear Members of the Association. PMID- 29349060 TI - Sost Deficiency does not Alter Bone's Lacunar or Vascular Porosity in Mice. AB - SCLEROSTIN (Sost) is expressed predominantly in osteocytes acting as a negative regulator of bone formation. In humans, mutations in the SOST gene lead to skeletal overgrowth and increased bone mineral density, suggesting that SCLEROSTIN is a key regulator of bone mass. The function of SCLEROSTIN as an inhibitor of bone formation is further supported by Sost knockout (KO) mice which display a high bone mass with elevated bone formation. Previous studies have indicated that Sost exerts its effect on bone formation through Wnt-mediated regulation of osteoblast differentiation, proliferation, and activity. Recent in vitro studies have also suggested that SCLEROSTIN regulates angiogenesis and osteoblast-to-osteocyte transition. Despite this wealth of knowledge of the mechanisms responsible for SCLEROSTIN action, no previous studies have examined whether SCLEROSTIN regulates osteocyte and vascular configuration in cortices of mouse tibia. Herein, we image tibiae from Sost KO mice and their wild-type (WT) counterparts with high-resolution CT to examine whether lack of SCLEROSTIN influences the morphometric properties of lacunae and vascular canal porosity relating to osteocytes and vessels within cortical bone. Male Sost KO and WT mice (n = 6/group) were sacrificed at 12 weeks of age. Fixed tibiae were analyzed using microCT to examine cortical bone mass and architecture. Then, samples were imaged by using benchtop and synchrotron nano-computed tomography at the tibiofibular junction. Our data, consistent with previous studies show that, Sost deficiency leads to significant enhancement of bone mass by cortical thickening and bigger cross-sectional area and we find that this occurs without modifications of tibial ellipticity, a measure of bone shape. In addition, our data show that there are no significant differences in any lacunar or vascular morphometric or geometric parameters between Sost KO mouse tibia and WT counterparts. We, therefore, conclude that the significant increases in bone mass induced by Sost deficiency are not accompanied by any significant modification in the density, organization, or shape of osteocyte lacunae or vascular content within the cortical bone. These data may imply that SCLEROSTIN does not modify the frequency of osteocytogenic recruitment of osteoblasts to initiate terminal osteocytic differentiation in mice. PMID- 29349061 TI - Self-Reported Adverse Drug Reactions, Medication Adherence, and Clinical Outcomes among Major Depressive Disorder Patients in Ethiopia: A Prospective Hospital Based Study. AB - Background: There is paucity of data on prevalence of Adverse Drug Reactions (ADRs) and adherence and clinical outcomes of antidepressants. The present study determined the magnitude of ADRs of antidepressants and their impact on the level of adherence and clinical outcome. Methods: A prospective cross-sectional study was conducted among depression patients from September 2016 to January 2017 at Gondar University Hospital psychiatry clinic. The Naranjo ADR probability scale was employed to assess the ADRs. The rate of medication adherence was determined using Morisky Medication Adherence Measurement Scale-Eight. Results: Two hundred seventeen patients participated in the study, more than half of them being males (122; 56.2%). More than one-half of the subjects had low adherence to their medications (124; 57.1%) and about 186 (85.7%) of the patients encountered ADR. The most common ADR was weight gain (29; 13.2%). More than one-half (125; 57.6%) of the respondents showed improved clinical outcome. Optimal level of medication adherence decreased the likelihood of poor clinical outcome by 56.8%. Conclusion: ADRs were more prevalent. However, adherence to medications was very poor in the setup. Long duration of depression negatively affects the rate of adherence. In addition, adherence was found to influence the clinical outcome of depression patients. PMID- 29349063 TI - Abdominal Manual Therapy Repairs Interstitial Cells of Cajal and Increases Colonic c-Kit Expression When Treating Bowel Dysfunction after Spinal Cord Injury. AB - Background: This study aimed to evaluate the therapeutic effects of abdominal manual therapy (AMT) on bowel dysfunction after spinal cord injury (SCI), investigating interstitial cells of Cajal (ICCs) and related c-kit expression. Methods: Model rats were divided as SCI and SCI with drug treatment (intragastric mosapride), low-intensity (SCI + LMT; 50 g, 50 times/min), and high-intensity AMT (SCI + HMT; 100 g, 150 times/min). After 14 days of treatment, weight, improved Basso-Beattie-Bresnahan (BBB) locomotor score, and intestinal movement were evaluated. Morphological structure of spinal cord and colon tissues were examined. Immunostaining, RT-PCR, and western blot were used to assess c-kit expression. Results: In SCI rats, AMT could not restore BBB, but it significantly increased weight, shortened time to defecation, increased feces amounts, and improved fecal pellet traits and colon histology. AMT improved the number, distribution, and ultrastructure of colonic ICCs, increasing colonic c-kit mRNA and protein levels. Compared with the SCI + Drug and SCI + LMT groups, the SCI + HMT group showed better therapeutic effect in improving intestinal transmission function and promoting c-kit expression. Conclusions: AMT is an effective therapy for recovery of intestinal transmission function. It could repair ICCs and increase c-kit expression in colon tissues after SCI, in a frequency-dependent and pressure-dependent manner. PMID- 29349062 TI - Circular RNAs: Biogenesis, Function, and a Role as Possible Cancer Biomarkers. AB - Circular RNAs (circRNAs) are a class of noncoding RNAs (ncRNAs) that form covalently closed continuous loop structures, lacking the terminal 5' and 3' ends. CircRNAs are generated in the process of back-splicing and can originate from different genomic regions. Their unique circular structure makes circRNAs more stable than linear RNAs. In addition, they also display insensitivity to ribonuclease activity. Generally, circRNAs function as microRNA (miRNA) sponges and have a regulatory role in transcription and translation. They may be also translated in a cap-independent manner in vivo, to generate specific proteins. In the last decade, next-generation sequencing techniques, especially RNA-seq, have revealed great abundance and also dysregulation of many circRNAs in various diseases, suggesting their involvement in disease development and progression. Regarding their high stability and relatively specific differential expression patterns in tissues and extracellular environment (e.g., body fluids), they are regarded as promising novel biomarkers in cancer. Therefore, we focus this review on describing circRNA biogenesis, function, and involvement in human cancer development and address the potential of circRNAs to be effectively used as novel cancer diagnostic and prognostic biomarkers. PMID- 29349064 TI - From Clinical Symptoms to MR Imaging: Diagnostic Steps in Adenomyosis. AB - Adenomyosis or endometriosis genitalis interna is a frequent benign disease of women in fertile age. It causes symptoms like bleeding disorders and dysmenorrhea and seems to have a negative effect on fertility. Adenomyosis can be part of a complex genital and extragenital endometriosis but also can be found as a solitary uterine disease. While peritoneal endometriosis can be easily diagnosed by laparoscopy with subsequent biopsy, the determination of adenomyosis is difficult. In the following literature review, the diagnostic methods clinical history and symptoms, gynecological examination, 2D and 3D transvaginal ultrasound, MRI, hysteroscopy, and laparoscopy will be discussed step by step in order to evaluate their predictive value in the diagnosis of adenomyosis. PMID- 29349065 TI - Beneficial Effects of 6-Month Supplementation with Omega-3 Acids on Selected Inflammatory Markers in Patients with Chronic Kidney Disease Stages 1-3. AB - Introduction: Chronic kidney disease (CKD) is accompanied by inflammation. The aim of this study was to evaluate the effect of 6-month supplementation with omega-3 acids on selected markers of inflammation in patients with CKD stages 1 3. Methods: Six-month supplementation with omega-3 acids (2 g/day) was administered to 87 CKD patients and to 27 healthy individuals. At baseline and after follow-up, blood was taken for C-reactive protein (CRP) and monocyte chemotactic protein-1 (MCP-1) concentration and white blood cell (WBC) count. Serum concentration of omega-3 acids-eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and alpha-linolenic acid (ALA)-was determined using gas chromatography. And 24-hour urinary collection was performed to measure MCP-1 excretion. Results: After six-month omega-3 supplementation, ALA concentration increased in CKD patients and in the reference group, while EPA and DHA did not change. At follow-up, a significant decrease in urinary MCP-1 excretion in CKD (p = 0.0012) and in the reference group (p = 0.001) was found. CRP, serum MCP-1, and WBC did not change significantly. The estimated glomerular filtration rate (eGFR) did not change significantly in the CKD group. Conclusions: The reduction of urinary MCP-1 excretion in the absence of MCP-1 serum concentration may suggest a beneficial effect of omega-3 supplementation on tubular MCP-1 production. Trial Registration: This study was registered in ClinicalTrials.gov (identifier: NCT02147002). PMID- 29349066 TI - Cadmium Exposure as a Putative Risk Factor for the Development of Pancreatic Cancer: Three Different Lines of Evidence. AB - Although profoundly studied, etiology of pancreatic cancer (PC) is still rather scant. Exposure to cadmium (Cd), a ubiquitous metal associated with well established toxic and carcinogenic properties, has been hypothesized to one putative cause of PC. Hence, we analyzed recently published observational studies, meta-analyses, and experimental animal and in vitro studies with the aim of summarizing the evidence of Cd involvement in PC development and describing the possible mechanisms. Consolidation of epidemiological data on PC and exposure to Cd indicated a significant association with an elevated risk of PC among general population exposed to Cd. Cadmium exposure of laboratory animals was showed to cause PC supporting the findings suggested by human studies. The concordance with human and animal studies is buttressed by in vitro studies, although in vitro data interpretation is problematic. In most instances, only significant effects are reported, and the concentrations of Cd are excessive, which would skew interpretation. Previous reports suggest that oxidative stress, apoptotic changes, and DNA cross-linking and hypermethylation are involved in Cd mediated carcinogenesis. Undoubtedly, a significant amount of work is still needed to achieve a better understanding of the Cd involvement in pancreatic cancer which could facilitate prevention, diagnosis, and therapy of this fatal disease. PMID- 29349067 TI - Modulation of Immune Function in Rats Using Oligosaccharides Extracted from Palm Kernel Cake. AB - To investigate the prebiotic and immunomodulatory effects of PKC extract (OligoPKC) a total of 24 male rats were randomly assigned to three treatment groups receiving basal diet (control), basal diet containing 0.5% OligoPKC, or basal diet containing 1% OligoPKC for four weeks. We found that OligoPKC had no significant effect on the tested growth parameters. However, it increased the size of the total and beneficial bacterial populations while reducing pathogen populations. OligoPKC increased the concentration of immunoglobulins in the serum and cecal contents of rats. It also enhanced the antioxidant capacity of the liver while reducing lipid peroxidation in liver tissue. OligoPKC affected the expression of genes involved in immune system function in the intestine. Therefore, OligoPKC could be considered a potential mannan-based prebiotic for humans and animals due to its beneficial effects on the health and well-being of the model rats. PMID- 29349068 TI - Restrictive Transfusion Strategy Does Not Affect Clinical Prognosis in Patients with Ectopic Pregnancy. AB - To assess the effects of restrictive transfusion strategy on hemoglobin (Hb) levels and prognosis in patients with ectopic pregnancy and severe hemorrhage undergoing emergency surgery, patient data were collected from 2012 to 2016. Following transfusion guidelines, restrictive transfusion was performed; at Hb levels of 60-70 to 100 g/L, transfusion was continued or not based on disease status. The patients were divided into four groups: blood loss < 400 ml (N1), 400 799 ml (N2), 800-1199 ml (N3), and >=1200 ml (N4). Several prognosis parameters were assessed. Group N4 was further divided based on blood loss amounts (1200 1999, 2000-2999, 3000-3999, and 4000-5000 ml) for subgroup analyses. Blood loss, hemoglobin levels at discharge, and American Society of Anesthesiologists (ASA) scores were not associated with patient prognostic parameters, including intensive care unit (ICU) occupancy, cure, and healing rates, and surgical complications and hospital stay. No statistically significant difference was obtained in hospital stay among N1, N2, and N3 groups. Compared with N1 patients, cases with blood loss >= 1200 ml had significantly longer hospital stay. Interestingly, hospital stay was correlated with surgical approach, location of pregnancy, and operation time. Restrictive transfusion strategy could be safely used for emergency surgery in ectopic pregnancy with acute blood loss. PMID- 29349069 TI - A Novel Methicillin-Resistant Staphylococcus aureus t11469 and a Poultry Endemic Strain t002 (ST5) Are Present in Chicken in Ebonyi State, Nigeria. AB - Background: The changing epidemiology of methicillin-resistant Staphylococcus aureus (MRSA) from a hospital-associated pathogen to an organism commonly found in the community and in livestock reflects an organism well-equipped to survive in diverse environments and adjust to different environmental conditions including antimicrobial use. Methods: We investigated the molecular epidemiology of S. aureus and MRSA in poultry in Ebonyi State, Nigeria. Samples were collected from 1800 birds on 9 different farms within the state. Positive isolates were tested for antibiotic susceptibility and molecular typing. Results: Prevalence in birds was 13.7% (247/1800). MRSA prevalence in poultry was 0.8%. The prevalence of MRSA in broilers and layers was 1.2% and 0.4%, respectively. All tested isolates were susceptible to vancomycin. Molecular analysis of the isolates revealed 3 spa types: t002, t084, and a novel spa type, t11469. The novel spa type t11469 belonged to sequence type ST5. Conclusion: The detection of t002 in chicken suggests the presence of livestock-associated MRSA in poultry in Ebonyi State. The detection of the new spa type t11469 in poultry that has not been characterised to ascertain its pathogenic potential remains a cause for concern, especially as some were found to carry PVL genes, a putative virulence factor in staphylococcal infection. PMID- 29349070 TI - EEG Recording and Online Signal Processing on Android: A Multiapp Framework for Brain-Computer Interfaces on Smartphone. AB - Objective: Our aim was the development and validation of a modular signal processing and classification application enabling online electroencephalography (EEG) signal processing on off-the-shelf mobile Android devices. The software application SCALA (Signal ProCessing and CLassification on Android) supports a standardized communication interface to exchange information with external software and hardware. Approach: In order to implement a closed-loop brain computer interface (BCI) on the smartphone, we used a multiapp framework, which integrates applications for stimulus presentation, data acquisition, data processing, classification, and delivery of feedback to the user. Main Results: We have implemented the open source signal processing application SCALA. We present timing test results supporting sufficient temporal precision of audio events. We also validate SCALA with a well-established auditory selective attention paradigm and report above chance level classification results for all participants. Regarding the 24-channel EEG signal quality, evaluation results confirm typical sound onset auditory evoked potentials as well as cognitive event related potentials that differentiate between correct and incorrect task performance feedback. Significance: We present a fully smartphone-operated, modular closed-loop BCI system that can be combined with different EEG amplifiers and can easily implement other paradigms. PMID- 29349071 TI - Effect of Ultrasound-Enhanced Transdermal Drug Delivery Efficiency of Nanoparticles and Brucine. AB - Brucine is the active component in traditional Chinese medicine "Ma-Qian-Zi" (Strychnos nux-vomica Linn), with capabilities of analgesic, anti-inflammatory, anti-tumor and so on. It is crucial how to break through the impact of cuticle skin which reduces the penetration of drugs to improve drug transmission rate. The aim of this study is to improve the local drug concentration by using ultrasound. We used fresh porcine skin to study the effects of ultrasound on the transdermal absorption of brucine under the influence of various acoustic parameters, including frequency, amplitude and irradiation time. The transdermal conditions of yellow-green fluorescent nanoparticles and brucine in skin samples were observed by laser confocal microscopy and ultraviolet spectrophotometry. The results show that under ultrasonic conditions, the permeability of the skin to the fluorescent label and brucine (e.g., the depth and concentration of penetration) is increased compared to its passive diffusion permeability. The best ultrasound penetration can make the penetration depth of more than 110 microns, fluorescent nanoparticles and brucine concentration increased to 2-3 times. This work will provide supportive data on how the brucine is better used for transdermal drug delivery (TDD). PMID- 29349072 TI - Complex Segregation Analysis Provides Evidence for Autosomal Dominant Transmission in the Chinese Han Families with Ankylosing Spondylitis. AB - Introduction: Familial aggregation of ankylosing spondylitis (AS) has been frequently noticed. However, the mode of inheritance in AS remains poorly understood. Our aim was to determine the mode of inheritance best fitting the observed transmission pattern of AS families. Methods: Families with 5 or more AS patients diagnosed with 1984 modified New York criteria were recruited. We performed complex segregation analysis for a binary trait in regressive multivariate logistic models. The inheritance models, including sporadic, major gene, environmental, general, and other 9 models, were compared by likelihood ratio tests and Akaike's Information Criterion. Results: This research included 9 Chinese Han AS families with a total number of 315 persons, including 74 patients. First, familial association was determined. Sporadic with familial association model was rejected when compared with either the general model or the homogeneous general model (p < 0.001). The environmental model was also rejected when compared with general models (p < 0.02). Mendelian dominate mode fitted best in 5 AS families, while Tau AB free model best explained the mode of inheritance in these AS families. Conclusion: This study provided evidence in support of Mendelian dominant mode and firstly discovered a non-Mendelian mode called tau AB free inheritance mode in AS. PMID- 29349073 TI - Anatomical Basis of the Myofascial Trigger Points of the Gluteus Maximus Muscle. AB - Myofascial pain syndrome is characterized by pain and limited range of motion in joints and caused by muscular contracture related to dysfunctional motor end plates and myofascial trigger points (MTrPs). We aimed to observe the anatomical correlation between the clinically described MTrPs and the entry point of the branches of the inferior gluteal nerve into the gluteus maximus muscle. We dissected twenty gluteus maximus muscles from 10 human adult cadavers (5 males and 5 females). We measured the muscles and compiled the distribution of the nerve branches into each of the quadrants of the muscle. Statistical analysis was performed by using Student's t-test and Kruskal-Wallis tests. Although no difference was observed either for muscle measurements or for distribution of nerve branching among the subjects, the topography of MTrPs matched the anatomical location of the entry points into the muscle. Thus, anatomical substract of the MTrPs may be useful for a better understanding of the physiopathology of these disorders and provide basis for their surgical and clinical treatment. PMID- 29349074 TI - Biomechanical Effects of Posterior Condylar Offset and Posterior Tibial Slope on Quadriceps Force and Joint Contact Forces in Posterior-Stabilized Total Knee Arthroplasty. AB - This study aimed to determine the biomechanical effect of the posterior condylar offset (PCO) and posterior tibial slope (PTS) in posterior-stabilized (PS) fixed bearing total knee arthroplasty (TKA). We developed +/-1, +/-2, and +/-3 mm PCO models in the posterior direction and -3 degrees , 0 degrees , 3 degrees , and 6 degrees PTS models using a previously validated FE model. The influence of changes in the PCO and PTS on the biomechanical effects under deep-knee-bend loading was investigated. The contact stress on the PE insert increased by 14% and decreased by 7% on average as the PCO increased and decreased, respectively, compared to the neutral position. In addition, the contact stress on post in PE insert increased by 18% on average as PTS increased from -3 degrees to 6 degrees . However, the contact stress on the patellar button decreased by 11% on average as PTS increased from -3 degrees to 6 degrees in all different PCO cases. The quadriceps force decreased by 14% as PTS increased from -3 degrees to 6 degrees in all PCO models. The same trend was found in patellar tendon force. Changes in PCO had adverse biomechanical effects whereas PTS increase had positive biomechanical effects. However, excessive PTS should be avoided to prevent knee instability and subsequent failure. PMID- 29349075 TI - Influence of Restorative Materials on Color of Implant-Supported Single Crowns in Esthetic Zone: A Spectrophotometric Evaluation. AB - Restorations of 98 implant-supported single crowns in anterior maxillary area were divided into 5 groups: zirconia abutment, titanium abutment, and gold/gold hue abutment with zirconia coping, respectively, and titanium abutment with metal coping as well as gold/gold hue abutment with metal coping. A reflectance spectrophotometer was used to evaluate the color difference between the implant crowns and contralateral/neighboring teeth, as well as the color difference between the peri-implant soft tissue and the natural marginal mucosa. The mucosal discoloration score was used for subjective evaluation of the esthetic outcome of soft tissue around implant-supported single crowns in the anterior zone, and the crown color match score was used for subjective evaluation of the esthetic outcome of implant-supported restoration. ANOVA analysis was used to compare the differences among groups and Spearman correlation was used to test the relationships. A gold/gold hue abutment with zirconia coping was the best choice for an esthetic crown and the all-ceramic combination was the best for peri implant soft tissue. Significant correlation was found between the spectrophotometric color difference of peri-implant soft tissue and mucosal discoloration score, while no significant correlation was found between the total spectrophotometric color difference of implant crown and crown color match score. PMID- 29349076 TI - The Association between 5HT2A T102C and Behavioral and Psychological Symptoms of Dementia in Alzheimer's Disease: A Meta-Analysis. AB - The serotonin receptor gene (5-HT2A) has been reported to be a susceptible factor in behavioral and psychological symptoms of dementia (BPSD) in Alzheimer's disease (AD). However, previous results were conflicting. We aim to investigate the association of 5-HT2A T102C with BPSD in AD using a meta-analysis. Studies were collected using PubMed, Web of Science, the Cochrane Library databases, Chinese National Knowledge Infrastructure (CNKI), and Embase. Pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess associations. Nine studies with 1899 AD patients with/without BPSD were included in this meta analysis. The 102C and CC genotypes were associated with psychosis in AD (102C: p < 0.00001, OR [95% CI] = 3.19 [2.12-4.79]; CC: p < 0.00001, OR [95% CI] = 7.24 [3.60-14.59]). The TT genotype was significantly associated with hallucinations, aberrant motor behavior, and psychosis in AD (hallucinations: p = 0.001, OR [95% CI] = 0.52 [0.36-0.77]; aberrant motor behavior: p = 0.03, OR [95% CI] = 0.58 [0.35-0.95]; and psychosis: p = 0.002, OR [95% CI] = 0.34 [0.17-0.67]). No association was observed between T102C alleles or genotypes and delusions, agitation/aggression, depression, and apathy (p > 0.05). Thus, the 5HT2A T102C might be a susceptible factor for hallucinations, aberrant motor behavior, and psychosis in AD. The potential mechanism of this polymorphism in BPSD in AD requires further exploration. PMID- 29349077 TI - The Prognostic Value of HRAS mRNA Expression in Cutaneous Melanoma. AB - This study aimed to investigate the prognostic value of HRAS mRNA expression in cutaneous melanoma. Cutaneous melanoma is an aggressive cancer with an increasing incidence. Few studies have focused on the transcriptional level of RAS isoforms (KRAS, NRAS, and HRAS) in cutaneous melanoma. To gain further insight into RAS isoforms at transcriptional level, we obtained the cutaneous melanoma data from cBioPortal and investigated the RAS mRNA expression levels in different stages of melanoma and evaluated their correlation with clinical characteristics and patients' survival. Furthermore, we retrieved and analyzed the coexpression data and performed pathway enrichment analysis. Totally, 452 cutaneous melanoma cases were included in this study. We found that lower HRAS expression level was associated with longer patient survival. 206 genes that negatively correlated with HRAS expression were positively correlated with KRAS and NRAS expression. In contrast, no gene that positively correlated with HRAS expression was positively correlated with KRAS and NRAS expression. In conclusion, our data showed that transcriptional regulation was different for the three RAS isoforms in cutaneous melanoma. This study highlighted the prognostic value of HRAS mRNA expression and revealed that HRAS greatly differs from KRAS and NRAS at the transcriptional level. PMID- 29349078 TI - Categorisation of Mobile EEG: A Researcher's Perspective. AB - Researchers are increasingly attempting to undertake electroencephalography (EEG) recordings in novel environments and contexts outside of the traditional static laboratory setting. The term "mobile EEG," although commonly used to describe many of these undertakings, is ambiguous, since it attempts to encompass a wide range of EEG device mobility, participant mobility, and system specifications used across investigations. To provide quantitative parameters for "mobile EEG," we developed a Categorisation of Mobile EEG (CoME) scheme based upon scoring of device mobility (D, from 0, off-body, to 5, head-mounted with no additional equipment), participant mobility (P, from 0, static, to 5, unconstrained running), system specification (S, from 4, lowest, to 20, highest), and number of channels (C) used. The CoME scheme was applied to twenty-nine published mobile EEG studies. Device mobility scores ranged from 0D to 4D, participant mobility scores from 0P to 4P, and system specification scores from 6S to 17S. The format of the scores for the four parameters is given, for example, as (2D, 4P, 17S, 32C) and readily enables comparisons across studies. Our CoME scheme enables researchers to quantify the degree of device mobility, participant mobility, and system specification used in their "mobile EEG" investigations in a standardised way. PMID- 29349079 TI - Advances of Techniques in Deep Regional Blocks. PMID- 29349080 TI - Comparative Analysis and Classification of Cassette Exons and Constitutive Exons. AB - Alternative splicing (AS) is a major engine that drives proteome diversity in mammalian genomes and is a widespread cause of human hereditary diseases. More than 95% of genes in the human genome are alternatively spliced, and the most common type of AS is the cassette exon. Recent discoveries have demonstrated that the cassette exon plays an important role in genetic diseases. To discover the formation mechanism of cassette exon events, we statistically analyze cassette exons and find that cassette exon events are strongly influenced by individual exons that are smaller in size and that have a lower GC content, more codon terminations, and weaker splice sites. We propose an improved random-forest-based hybrid method of distinguishing cassette exons from constitutive exons. Our method achieves a high accuracy in classifying cassette exons and constitutive exons and is verified to outperform previous approaches. It is anticipated that this study will facilitate a better understanding of the underlying mechanisms in cassette exons. PMID- 29349081 TI - Quality of Life in Workers and Stress: Gender Differences in Exposure to Psychosocial Risks and Perceived Well-Being. AB - Background: Quality of working life is the result of many factors inherent in the workplace environment, especially in terms of exposure to psychosocial risks. Objectives: The purpose of this study is to assess the quality of life with special attention to gender differences. Methods: The HSE-IT questionnaire and the WHO-5 Well-Being Index were administered to a group of workers (74 males and 33 females). The authors also used Cronbach's alpha test to assess the internal consistency of both questionnaires and the Mann-Whitney test to evaluate the significance of gender differences in both questionnaires. Results: The HSE-IT highlighted the existence of work-related stress in all the population with a critical perception regarding the domain "Relationships." Furthermore, gender analysis highlighted the presence of two additional domains in the female population: "Demand" (p = 0,002) and "Support from Managers" (p = 0,287). The WHO 5 highlighted a well-being level below the standard cut-off point with a significant gender difference (p = 0.009) for males (18, SD = 6) as compared to females (14, SD = 6,4). Cronbach's alpha values indicated a high level of internal consistency for both of our scales. Conclusions: The risk assessment of quality of working life should take into due account the individual characteristics of workers, with special attention to gender. PMID- 29349082 TI - Efficacy of One-Year Treatment with Aflibercept for Diabetic Macular Edema with Practical Protocol. AB - The purpose of this study was to determine the efficacy of one-year treatment of diabetic macular edema (DME) with intravitreal aflibercept (IVA) injections on a practical protocol. The medical records of 51 eyes of 43 patients who were diagnosed with DME and had received IVA treatments were reviewed. The best corrected visual acuity (BCVA) and the central macular thickness (CMT) were measured at the baseline and at 1, 3, 6, and 12 months after the IVA. The mean number of IVA injections was 3.8 +/- 2.4. The mean BCVA was significantly better and the CMT was thinner after the IVA at all follow-up times (P < 0.05). The BCVA was better in eyes with a serous retinal detachment (SRD) than without a SRD (P < 0.01). There was a significant correlation between the photoreceptor outer segment (PROS) length and BCVA at the baseline and at 12 months after the IVA (P < 0.05). A fewer number of IVA injections significantly improved the BCVA and the CMT in eyes with DME after one-year treatment. IVA was more effective in the SRD+ group than in the SRD- group. The PROS length may be a predictive marker for visual outcomes after one-year treatment with IVA for DME (IRB#2272). PMID- 29349083 TI - Effects of Two Current Great Saphenous Vein Thermal Ablation Methods on Visual Analog Scale and Quality of Life. AB - Background: The aim of the study is to compare the current two endovenous thermal ablation methods by examining the effects on the visual analog scale (VAS) and the short form-36(r) quality of life index. Methods: Ninety-six patients who underwent unilateral endovenous thermal ablation of great saphenous vein were included. ClosureFastTM catheters were used in the RFA group and 1470 nm radial fiber laser catheters were used in the EVLA group. Results: The RFA group consisted of 41 patients and the EVLA group consisted of 55 patients. The preoperative baseline characteristics of both groups were similar. On the day of operation, VAS values were 2.8 +/- 1.1 in the RFA group and 3.6 +/- 1.8 in the EVLA group (p = 0.02). Comparisons of short form-36 parameters in both groups showed them to be similar except the pain detected at postoperative 1st week (48.1 +/- 5.4 for RFA, 44.9 +/- 7.6 for EVLA, p = 0.04). Conclusion: Results in postprocedural quality of life were found to be similar in both of the techniques. However, in terms of postoperative pain, radiofrequency ablation is still superior to the 1470 nm radial fiber laser catheters. PMID- 29349084 TI - In Vitro Biological Screening of Hartmannia rosea Extracts. AB - The present study is focused on the assessment of the medicinal therapeutic potential extracts of H. rosea to investigate their pharmacological implications based upon science proofs. The antioxidant activity of fraction of H. rosea, namely, n-hexane (HR-1), ethyl acetate (HR-2), chloroform (HR-3), and n-butanol (HR-4), was performed by using the DPPH radical scavenging method. The cytotoxicity and enzyme inhibition assessment were also performed. All the extracts showed significant antioxidant, antibacterial, and protein kinase inhibition but none of the extracts exhibited alpha-amylase inhibition activity. The chloroform extract HR-3 may block a kinase receptor from binding to ATP; the lead molecule will be isolated, which may stop cancerous cell growth and demotion of cell division. It is predicted that ethyl acetate, chloroform, and n-butanol extracts of H. rosea contain polyphenolics, flavonoids, and alkaloids that are biologically effective candidates exhibiting significant cytotoxicity, antioxidant, and antimicrobial activities. They may control oxidative damage in the body tissues and act as potential antidiabetic and anticancer agents. These studies will also be helpful for future drug designing and drug development research. PMID- 29349085 TI - Preimplantation Genetic Diagnosis for Myotonic Dystrophy Type 1 and Analysis of the Effect of the Disease on the Reproductive Outcome of the Affected Female Patients. AB - Myotonic dystrophy type 1 (DM1) is the most common adult muscular dystrophy and presents an autosomal dominant inheritance. A reproductive option for the families affected is preimplantation genetic diagnosis (PGD). One limitation of this option is the nonoptimal response to ovarian stimulation of the women with DM1, although controversial results exist regarding this subject. In this study, we have analyzed the results of the PGD program applied to DM1 at our institution. A total of 35 couples have been included in our program since 2010, and 59 cycles have been performed. The percentage of transfers per cycle was 64.4% and the live birth rate per cycle was 18.6%. Interestingly, statistically significant differences were observed for the clinical results in the group of couples with an affected female versus the group with an affected male or versus a group of couples with different referral reasons. Specifically, both the percentage of mature oocytes out of the total oocytes retrieved and the percentage of fertilization were considerably lower in the group of DM1 females. Our findings would suggest the possibility of achieving less favourable PGD outcomes in women with DM1 in comparison with other pathologies, although the underlying mechanism remains unknown. PMID- 29349086 TI - Preparation of P3HB4HB/(Gelatin + PVA) Composite Scaffolds by Coaxial Electrospinning and Its Biocompatibility Evaluation. AB - This study was conducted to prepare coaxial electrospun scaffolds of P3HB4HB/(gelatin + PVA) with various concentration ratios with P3HB4HB as the core solution and gelatin + PVA mixture as the shell solution; the mass ratios of gelatin and PVA in each 10 mL shell mixture were 0.6 g : 0.2 g (Group A), 0.4 g : 0.4 g (Group B), and 0.2 g : 0.6 g (Group C). The results showed that the pore size, porosity, and cell proliferation rate of Group C were better than those of Groups A and B. The ascending order of the tensile strength and modulus of elasticity was Group A < Group B < Group C. The surface roughness was Group C > Group B > Group A. The osteogenic and chondrogenic-specific staining showed that Group C was stronger than Groups A and B. This study demonstrates that when the mass ratio of gelatin : PVA was 0.2 g : 0.6 g, a P3HB4HB/(gelatin + PVA) composite scaffold with a core-shell structure can be prepared, and the scaffold has good biocompatibility that it may be an ideal scaffold for tissue engineering. PMID- 29349088 TI - Corrigendum to "Antidiabetic Effect of Young and Old Ethanolic Leaf Extracts of Vernonia amygdalina: A Comparative Study". AB - [This corrects the article DOI: 10.1155/2016/8252741.]. PMID- 29349087 TI - Advances and Current Concepts in the Medical Management of Gastroenteropancreatic Neuroendocrine Neoplasms. AB - Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are rare and heterogeneous group of tumors presenting as localised or metastatic disease and in a subset with distinct clinical syndromes. Treatment is aimed at controlling the functional syndrome, eradicating the tumor, and/or preventing further tumor growth. Surgery is the treatment of choice in removing the primary tumor and/or reducing tumor burden but cannot be applied to all patients. Somatostatin analogs (SS-analogs) obtain control of functional syndromes in the majority of GEP neuroendocrine tumors (NETs); phase III trials have shown that SS-analogs can be used as first-line antiproliferative treatment in patients with slow-growing GEP NETs. The role of the recently approved serotonin inhibitor, telotristat ethyl, and gastrin receptor antagonist, netazepide, is evolving. Streptozotocin-based chemotherapy has been used for inoperable or progressing pancreatic NENs but the orally administered combination of capecitabine/temozolomide is becoming more popular due to its better tolerability and potential effect in other GEP-NENs. Phase III trials have shown efficacy of molecular targeted therapies in GEP-NETs and of radionuclide treatment in patients with midgut carcinoid tumors expressing somatostatin receptors. Most patients will develop disease progression necessitating further therapeutic options. A combination of currently available treatments along with the molecular signature of each tumor will guide future treatment. PMID- 29349089 TI - Elevated Levels of Interferon-gamma Are Associated with High Levels of Epstein Barr Virus Reactivation in Patients with the Intestinal Type of Gastric Cancer. AB - Background: The inflammatory response directed against Helicobacter pylori (HP) is believed to be one of the main triggers of the appearance of gastric lesions and their progression to gastric cancer (GC). Epstein-Barr virus (EBV) has been found responsible for about 10% of all GCs, but the inflammatory response has not been studied in GC patients with evidence of high levels of EBV reactivation. Objective: To determine the relationship between inflammation and antibodies against EBV reactivation antigens, HP, and the bacterium virulence factor CagA in patients with GC. Methods: 127 GC patients, 46 gastritis patients, and 197 healthy subjects were studied. IL-1beta, IL-6, IL-8, IL-10, TNF-alpha, TGF-beta, MCP-1, and IFN-gamma levels were measured in serum or plasma and compared against the antibody titers of VCA-IgG, HP, and the HP virulence factor CagA. Statistical associations were estimated. Results: Significant ORs and positive trends were found between VCA-IgG and IFN-gamma, specifically for patients with GC of intestinal type (OR: 6.4, 95% C.I. 1.2-35.4) (p < 0.044). Conclusions: We confirmed a positive association between a marker of EBV reactivation and intestinal gastric cancer and present evidence of a correlation with elevated serum levels of IFN-gamma, but not with the other cytokines. PMID- 29349091 TI - Coexistent Ipsilateral Internal Carotid Artery Occlusion and Cerebral Venous Thrombosis in Hepatitis C. AB - A 58-year-old male, known to have hepatitis C virus (HCV), presented with intermittent headaches and left-sided sensorimotor symptoms. There were no focal neurological deficits on examination. Electrocardiogram was unremarkable. Computed tomography angiography head and neck displayed extracranial right internal carotid artery occlusion. Magnetic resonance imaging showed right cortical vein thrombosis, with hemorrhagic infarction. Echocardiography with bubble study was unremarkable. Hypercoagulable workup was significant for protein S deficiency. He was treated with warfarin for 6 months. Repeat protein S levels remained low 9 months later. The coexistence of arterial and venous thrombotic events gives rise to a limited differential. In this case, it may be related to chronic HCV infection. The underlying pathogenesis is not clear; however, it is possible the patient had chronic high-grade internal carotid artery stenosis, which occluded leading to his presenting symptoms. The cortical vein thrombosis is likely an incidental finding here. The extent by which HCV contributed to the cerebral thrombosis and carotid artery occlusion in our case is not clear; however, the hypercoagulable and atherosclerotic properties of the virus cannot be disregarded. The virus can promote carotid atherosclerosis and cerebral venous thrombosis as well as other venous and arterial thromboembolic events. Furthermore, HCV is associated with impaired venous flow and procoagulant properties, which can fuel a hypercoagulable state. Also of note cirrhosis is associated with protein S deficiency. We recommend considering an underlying hypercoagulable state including both arterial and venous thrombosis in HCV infection. PMID- 29349090 TI - Dysregulation of miR-155-5p and miR-200-3p and the Anti-Non-Bilayer Phospholipid Arrangement Antibodies Favor the Development of Lupus in Three Novel Murine Lupus Models. AB - Systemic lupus erythematosus (SLE) is characterized by deregulated activation of T and B cells, autoantibody production, and consequent formation of immune complexes. Liposomes with nonbilayer phospholipid arrangements (NPA), induced by chlorpromazine, procainamide, or manganese, provoke a disease resembling human lupus when administered to mice. These mice produce anti-NPA IgM and IgG antibodies and exhibit an increased number of TLR-expressing spleen cells and a modified gene expression associated with TICAM1-dependent TLR-4 signaling (including IFNA1 and IFNA2) and complement activation. Additionally, they showed a diminished gene expression related to apoptosis and NK cell activation. We hypothesized that such gene expression may be affected by miRNAs and so miRNA expression was studied. Twelve deregulated miRNAs were found. Six of them were common to the three lupus-like models. Their validation by qRT-PCR and TaqMan probes, including miR-342-3p, revealed that miR-155-5p and miR-200a-3p expression was statistically significant. Currently described functions for these miRNAs in autoimmune diseases such as SLE reveal their participation in inflammation, interferon production, germinal center responses, and antibody maturation. Taking into account these findings, we propose miR-155-5p and miR-200a-3p, together with the anti-NPA antibodies, as key players in the murine lupus-like models and possible biomarkers of the human SLE. PMID- 29349092 TI - Cathepsin B plays a key role in optimal production of the influenza A virus. AB - Background: Influenza A virus (IAV) is the etiologic agent of the febrile respiratory illness, commonly referred to as 'flu'. The lysosomal protease cathepsin B (CTSB) has shown to be involved in the lifecycle of various viruses. Here, we examined the role of CTSB in the IAV lifecycle. Methods: CTSB-deficient (CTSB-/-) macrophages and the human lung epithelial cell line A549 cells treated with CA-074Me were infected with the A/Puerto Rico/8/34 strain of IAV (IAV-PR8). Viral entry and propagation were measured through quantitative real-time RT-PCR; production and localization of hemagglutinin (HA) protein in the infected host cells were analysed by Western blots, flow cytometry and confocal microscopy; production of progeny viruses were measured by a hemagglutination assay. Results: CTSB-/- macrophages and CA-074Me-treated A549 cells had no defects in incorporating IAV-PR8 virions and permitting viral RNA synthesis. However, these cells produced significantly lower amounts of HA protein and progeny virions than wild-type or untreated cells. Conclusion: These data indicate that CTSB is involved in the expression of IAV-PR8 HA protein and subsequent optimal production of IAV-PR8 progeny virions. Targeting CTSB can be a novel therapeutic strategy for treating IAV infection. PMID- 29349093 TI - Preseason Adductor Squeeze Strength in 303 Spanish Male Soccer Athletes: A Cross sectional Study. AB - Background: Hip adductor muscle weakness and a history of groin injury both have been identified as strong risk factors for sustaining a new groin injury. Current groin pain and age have been associated with hip adductor strength. These factors could be related, but this has never been investigated. Purpose: To investigate whether soccer athletes with past-season groin pain and with different durations of past-season groin pain had lower preseason hip adductor squeeze strength compared with those without past-season groin pain. We also investigated whether differences in preseason hip adductor squeeze strength in relation to past-season groin pain and duration were influenced by current groin pain and age. Study Design: Cross-sectional study; Level of evidence, 3. Methods: In total, 303 male soccer athletes (mean age, 23 +/- 4 years; mean weight, 74.0 +/- 7.9 kg; mean height, 178.1 +/- 6.3 cm) were included in this study. Self-reported data regarding current groin pain, past-season groin pain, and duration were collected. Hip adductor squeeze strength was obtained using 2 different reliable testing procedures: (1) the short-lever (resistance placed between the knees, feet at the examination bed, and 45 degrees of hip flexion) and (2) the long lever (resistance placed between the ankles and 0 degrees of hip flexion) squeeze tests. Results: There was no difference between those with (n = 123) and without (n = 180) past-season groin pain for hip adductor squeeze strength when adjusting for current groin pain and age. However, athletes with past-season groin pain lasting longer than 6 weeks (n = 27) showed 11.5% and 15.3% lower values on the short-lever (P = .006) and long-lever (P < .001) hip adductor squeeze strength tests, respectively, compared with those without past-season groin pain. Conclusion: Male soccer athletes with past-season groin pain lasting longer than 6 weeks are likely to begin the next season with a high-risk groin injury profile, including a history of groin pain and hip adduction weakness. PMID- 29349094 TI - Upper Extremity Functional Status of Female Youth Softball Pitchers Using the Kerlan-Jobe Orthopaedic Clinic Questionnaire. AB - Background: Softball is a popular sport with a high incidence of upper extremity injuries. The Kerlan-Jobe Orthopaedic Clinic (KJOC) questionnaire is a validated performance and functional assessment tool used in overhead athletes. Upper extremity pain patterns and baseline KJOC scores have not been reported for active female youth softball pitchers. Purpose/Hypothesis: The purpose of this study was to establish the prevalence of upper extremity pain and its effect in female youth softball pitchers over a competitive season. We hypothesized that participants who missed time due to injury in the past year would have lower KJOC scores. Study Design: Cross-sectional study; Level of evidence, 3. Methods: Fifty three female softball pitchers aged 12 to 18 years were recruited from softball clinics in Vancouver, British Columbia, Canada. All participants self-identified as a pitcher on a competitive travel team. Participants were administered the KJOC questionnaire before and during the playing season. Missed time due to injury in the past year, current pain patterns, and KJOC scores were primary outcomes. Results: The mean (+/-SD) preseason KJOC score was 87.2 +/- 10.6. In the preseason, 22.6% of pitchers reported playing with arm trouble, and 32.1% missed time due to injury in the past year. The mean KJOC score for pitchers reporting a previous injury (n = 17) was significantly lower compared with those without an injury (n = 36) (79.5 +/- 13.8 vs 90.9 +/- 6.2, respectively; P = .02). The posterior shoulder was the most commonly reported pain location. For the cohort completing the questionnaire both before and during the playing season (n = 35), mean KJOC scores did not change significantly over the playing season (P = .64). Lower preseason KJOC scores were significantly related to the in season injury risk (P = .016). Pitchers with a preseason score of less than 90 had a 3.5 (95% CI, 1.1-11.2) times greater risk of reporting an in-season injury. Conclusion: Female youth softball pitchers have a high baseline functional status. However, 1 in 3 pitchers reported missed time due to injury in the previous year, and shoulder pain was more prevalent than elbow pain. The KJOC questionnaire can be used by coaches, researchers, and clinicians to identify youth softball pitchers at risk for injuries who may benefit from interventions. PMID- 29349095 TI - Spinal Motocross Injuries in the United Kingdom. AB - Background: Motocross is a form of motorcycle racing held on established off-road circuits and has been a recreational and competitive sport across the world for >100 years. In the United Kingdom alone, motocross has grown into a phenomenally ambitious and popular franchise. There are >200 motocross clubs across the country, permitting >900 events annually. Purpose: To assess the current trend of spine-related motocross injuries over the past 5 years. Study Design: Descriptive epidemiology study. Methods: Data were prospectively collected over 5 years (August 2010-August 2015) at our regional trauma and spine unit, regardless of whether the rider was performing the sport competitively or recreationally. Results: During the study period, spine-related injuries were identified for 174 patients (age range, 6-75 years) who were directly referred to our department following recreational or competitive motocross, with most injuries being sustained within the early spring and summer months, representing the start of the motocross season. A significant number of injuries were in males (n = 203, 94%), with the majority of injuries occurring within the 21- to 30-year-old age group. A total of 116 (54%) injuries required operative treatment. The most common spinal injury was thoracolumbar burst fracture (n = 95), followed by chance fractures (n = 26). Conclusion: This data series emphasizes the prevalence and devastation of motocross-related spinal injuries in the United Kingdom and may serve in administering sanctions and guidelines to governing bodies of motocross. The spinal injuries that occur during motocross have significant capital connotations for regional spinal centers. The recent surge in motocross popularity is correlated with the number of injuries, which have increased over the past 5 years by almost 500%. PMID- 29349097 TI - Universal Method for the Purification of Recombinant AAV Vectors of Differing Serotypes. AB - The generation of clinical good manufacturing practices (GMP)-grade adeno associated virus (AAV) vectors requires purification strategies that support the generation of vectors of high purity, and that exhibit a good safety and efficacy profile. To date, most reported purification schemas are serotype dependent, requiring method development for each AAV gene therapy product. Here, we describe a platform purification process that is compatible with the purification of multiple AAV serotypes. The method generates vector preparations of high purity that are enriched for capsids with full vector genomes, and that minimizes the fractional content of empty capsids. The two-column purification method, a combination of affinity and ion exchange chromatographies, is compatible with a range of AAV serotypes generated by either the transient triple transfection method or the more scalable producer cell line platform. In summary, the adaptable purification method described can be used for the production of a variety of high-quality AAV vectors suitable for preclinical testing in animal models of diseases. PMID- 29349098 TI - Comparison of HIV Testing among Children and Adults with Tuberculosis, Vietnam. AB - HIV testing among persons with tuberculosis (TB) results in high-yield identification of persons infected with HIV. To evaluate differences in HIV testing among children versus adults with TB in Vietnam, we collected and analyzed age-disaggregated facility and aggregated provincial data from the National Tuberculosis Program. HIV testing was incompletely documented for >70% of children, whereas adult testing data were >90% complete. Standardized training of personnel for universal HIV testing and documentation for children with TB could improve HIV case-detection and permit linking of children with HIV to antiretroviral treatment to prevent morbidity and mortality. PMID- 29349096 TI - Safety and Efficacy of AAV Retrograde Pancreatic Ductal Gene Delivery in Normal and Pancreatic Cancer Mice. AB - Recombinant adeno-associated virus (rAAV)-mediated gene delivery shows promise to transduce the pancreas, but safety/efficacy in a neoplastic context is not well established. To identify an ideal AAV serotype, route, and vector dose and assess safety, we have investigated the use of three AAV serotypes (6, 8, and 9) expressing GFP in a self-complementary (sc) AAV vector under an EF1alpha promoter (scAAV.GFP) following systemic or retrograde pancreatic intraductal delivery. Systemic delivery of scAAV9.GFP transduced the pancreas with high efficiency, but gene expression did not exceed >45% with the highest dose, 5 * 1012 viral genomes (vg). Intraductal delivery of 1 * 1011 vg scAAV6.GFP transduced acini, ductal cells, and islet cells with >50%, ~48%, and >80% efficiency, respectively, and >80% pancreatic transduction was achieved with 5 * 1011 vg. In a KrasG12D-driven pancreatic cancer mouse model, intraductal delivery of scAAV6.GFP targeted acini, epithelial, and stromal cells and exhibited persistent gene expression 5 months post-delivery. In normal mice, intraductal delivery induced a transient increase in serum amylase/lipase that resolved within a day of infusion with no sustained pancreatic inflammation or fibrosis. Similarly, in PDAC mice, intraductal delivery did not increase pancreatic intraepithelial neoplasia progression/fibrosis. Our study demonstrates that scAAV6 targets the pancreas/neoplasm efficiently and safely via retrograde pancreatic intraductal delivery. PMID- 29349099 TI - Repetitive Questioning Exasperates Caregivers. AB - Repetitive questioning is due to an impaired episodic memory and is a frequent, often presenting, problem in patients with Alzheimer's disease (amnestic type). It is due to the patients' difficulties learning new information, retaining it, and recalling it, and is often aggravated by a poor attention span and easy distractibility. A number of factors may trigger and maintain repetitive questioning. Caregivers should try to identify and address these triggers. In the case discussion presented, it is due to the patient's concerns about her and her family's safety triggered by watching a particularly violent movie aired on TV. What went wrong in the patient/caregiver interaction and how it could have been avoided or averted are explored. Also reviewed are the impact of repetitive questioning, the challenges it raises for caregivers, and some effective intervention strategies that may be useful to diffuse the angst that caregivers experience with repetitive questioning. PMID- 29349100 TI - Vitamin D Deficiency Associated With Markers of Cardiovascular Disease in Children With Obesity. AB - Adult studies have reported associations of low 25-hydroxyvitamin D (25OHD) with dyslipidemia and cardiovascular disease; however, there are scarce pediatric data regarding relationships between vitamin D status and specific lipid markers affecting cardiovascular risk. In this cross-sectional study of children evaluated at university-based pediatric endocrinology clinics, 178 patients meeting criteria for overweight or obesity had 25OHD levels assessed over a 2 year period; 60 of 178 had non-HDL (high-density lipoprotein) cholesterol and fasting lipid parameters performed. Patients with 25OHD <20 ng/mL had significantly higher non-HDL cholesterol (134.76 +/- 47.32 vs 108.85 +/- 31.14, P < .03), triglyceride (TG)/HDL ratio (3.09 +/- 2.26 vs 1.82 +/- 1.18, P = .03), total cholesterol (TC)/HDL ratio (4.23 +/- 1.23 vs 3.40 +/- 1.05, P < .01), TC (184.15 +/- 40.19 vs 158.89 +/- 30.10, P < .01), and TG (134.76 +/- 47.32 vs 78.93 +/- 37.46, P < .03) compared with 25OHD >=20 ng/mL. Vitamin D deficiency was significantly associated with increase in atherogenic lipids and markers of early cardiovascular disease. These findings suggest that vitamin D deficiency may have negative effects on lipid parameters with increase in cardiovascular risk. PMID- 29349101 TI - Multilayered complex network datasets for three supply chain network archetypes on an urban road grid. AB - This article presents the multilayered complex network formulation for three different supply chain network archetypes on an urban road grid and describes how 500 instances were randomly generated for each archetype. Both the supply chain network layer and the urban road network layer are directed unweighted networks. The shortest path set is calculated for each of the 1 500 experimental instances. The datasets are used to empirically explore the impact that the supply chain's dependence on the transport network has on its vulnerability in Viljoen and Joubert (2017) [1]. The datasets are publicly available on Mendeley (Joubert and Viljoen, 2017) [2]. PMID- 29349102 TI - Data on the clinical usefulness of brachial-ankle pulse wave velocity in patients with suspected coronary artery disease. AB - Brachial-artery pulse wave velocity (baPWV) is a simple and reliable tool for measurement of arterial stiffness. Our previous studies suggested that baPWV is associated with the presence and severity of coronary artery disease (CAD) and the risk of cardiovascular events. In the present data article, we provided supplementary data supporting the independent prognostic value of arterial stiffness, assessed by baPWV, in patients with suspected CAD (Hwang et al., 2017) [1]. The data was obtained from 523 patients undergoing coronary CT angiography (CCTA), and baPWV was measured at the time of CCTA. Patients with vulnerable coronary plaque or obstructive CAD on CCTA had higher age, more cardiovascular risk factors, and higher baPWV values. Given the significant association between high baPWV and the presence of vulnerable plaque or obstructive CAD as shown in this data article, the prognostic value of baPWV was further assessed in subgroups divided according to the CCTA findings (vulnerable plaque or obstructive CAD). In each subgroup by CCTA findings, multivariable Cox proportional hazard model analysis showed that high baPWV was an independent risk factor for cardiovascular events even after adjusting for clinical risk factors. PMID- 29349103 TI - Wildfire spread, hazard and exposure metric raster grids for central Catalonia. AB - We provide 40 m resolution wildfire spread, hazard and exposure metric raster grids for the 0.13 million ha fire-prone Bages County in central Catalonia (northeastern Spain) corresponding to node influence grid (NIG), crown fraction burned (CFB) and fire transmission to residential houses (TR). Fire spread and behavior data (NIG, CFB and fire perimeters) were generated with fire simulation modeling considering wildfire season extreme fire weather conditions (97th percentile). Moreover, CFB was also generated for prescribed fire (Rx) mild weather conditions. The TR smoothed grid was obtained with a geospatial analysis considering large fire perimeters and individual residential structures located within the study area. We made these raster grids available to assist in the optimization of wildfire risk management plans within the study area and to help mitigate potential losses from catastrophic events. PMID- 29349104 TI - Dataset demonstrating effects of momentum transfer on sizing of current collector for lithium-ion batteries during laser cutting. AB - Material properties of copper and aluminum required for the numerical simulation are presented. Electrodes used for the (paper) are depicted. This study describes the procedures of how penetration depth, width, and absorptivity are obtained from the simulation. In addition, a file format extracted from the simulation to visualize 3D distribution of temperature, velocity, and melt pool geometry is presented. PMID- 29349105 TI - Draft genome sequence of Brevibacterium epidermidis EZ-K02 isolated from nitrocellulose-contaminated wastewater environments. AB - Brevibacterium spp. are aerobic, nonbranched, asporogenous, gram-positive, rod shaped bacteria which may exhibit a rod-coccus cycle when cells get older and can be found in various environments. Several Brevibacterium species have industrial importance and are capable of biotransformation of various contaminants. Here we describe the draft genome sequence of Brevibacterium epidermidis EZ-K02 isolated from nitrocellulose-contaminated wastewater environments. The genome comprises 3,885,924 bp, with a G + C content of 64.2%. This whole genome shotgun project has been deposited at DDBJ/ENA/GenBank under the accession PDHL00000000. PMID- 29349106 TI - The wildland-urban interface raster dataset of Catalonia. AB - We provide the wildland urban interface (WUI) map of the autonomous community of Catalonia (Northeastern Spain). The map encompasses an area of some 3.21 million ha and is presented as a 150-m resolution raster dataset. Individual housing location, structure density and vegetation cover data were used to spatially assess in detail the interface, intermix and dispersed rural WUI communities with a geographical information system. Most WUI areas concentrate in the coastal belt where suburban sprawl has occurred nearby or within unmanaged forests. This geospatial information data provides an approximation of residential housing potential for loss given a wildfire, and represents a valuable contribution to assist landscape and urban planning in the region. PMID- 29349107 TI - Draft genome sequence of Xylaria sp., the causal agent of taproot decline of soybean in the southern United States. AB - The draft genome of Xylaria sp. isolate MSU_SB201401, causal agent of taproot decline of soybean in the southern U.S., is presented here. The genome assembly was 56.7 Mb in size with an L50 of 246. A total of 10,880 putative protein encoding genes were predicted, including 647 genes encoding carbohydrate-active enzymes and 1053 genes encoding secreted proteins. This is the first draft genome of a plant-pathogenic Xylaria sp. associated with soybean. The draft genome of Xylaria sp. isolate MSU_SB201401 will provide an important resource for future experiments to determine the molecular basis of pathogenesis. PMID- 29349108 TI - Spatially and temporally continuous estimates of annual total nitrogen deposition over North America, 1860-2013. AB - This report describes the North American Climate Integration and Diagnostics - Nitrogen Deposition Version 1 (NACID-NDEP1) database. The database contains estimates of annual total nitrogen (N) deposition for the purpose of supporting terrestrial ecosystem modelling in North America. It was constructed at 1-km resolution with coverage of Alaska, Canada, and the conterminous U.S., with continuous annual coverage from 1860 to 2013. Estimates were produced by acquiring and compiling best-available data sources: Wet N deposition was estimated from interpolation of monthly ammonium and nitrate concentration measurements and from grids of monthly precipitation. Dry N deposition was estimated from satellite measurements of ammonium and nitrogen oxides. Total N deposition for the pre-industrial era was derived from previous modelling studies. As these source datasets covered different time periods, several assumptions were required to produce a continuous record. PMID- 29349109 TI - Data collected in an integrated ecological survey of rotifer communities and corresponding environmental variables in the highly polluted Haihe River Basin, China. AB - Here we presented two datasets (biological and environmental datasets) collected in a comprehensive large geographical scale (approximately 1.1*105 km2) survey of rivers/streams in the Haihe River Basin (HRB), which has become the most polluted river basin in past two decades in China. The survey selected a total of 94 representative sampling sites in the plain region of HRB, where environmental pollution is more severe than the mountain region. The biological dataset contains the information on the identified rotifer species and their abundance, while the environmental dataset provides the measured environmental variables at each sampling site. Based on this ecological survey, we identified a total of 91 rotifer species and their abundance, as well as abundance of two crucial taxonomic groups on rotifers' food webs (i.e., protozoans and crustaceans), and also presented seven environmental variables, particularly those associated with nitrogen and phosphorus pollution. PMID- 29349110 TI - Data on assessment of groundwater quality for drinking and irrigation in rural area Sarpol-e Zahab city, Kermanshah province, Iran. AB - In present study 30 groundwater samples were collected from Sarpol-e Zahab area, Kermanshah province of Iran in order to assess the quality of groundwater in subjected area and determining its suitability for drinking and agricultural purposes. Also the variations in the quality levels of groundwater were compared over the years of 2015 and 2016. Statistical analyses including Spearman correlation coefficients and factor analysis display good correlation between physicochemical parameters (EC, TDS and TH) and Na+, Mg2+, Ca2+, Cl- and [Formula: see text] ionic constituents. Also in order to assess water quality for irrigation we used the United States Department of Agriculture (USDA) classification which is based on SAR for irrigation suitability assessment. In addition, the residual sodium carbonate (RSC), %Na, PI, KR, SSP, MH, EC characteristics were calculated for all samples and used for assessment of irrigation suitability. Based on these indicators, for every two years, the quality of water for agriculture is in good and excellent category. The Piper classification for hydro geochemical facies indicates that the water in the study area is of Ca-HCO3- type. However, the study of water hardness shows that more than 80% of samples are in hard and very hard water class. Therefore, there is a need for decisions to refine and soften the water. PMID- 29349111 TI - Slowly progressive chest rash in an elderly woman. PMID- 29349112 TI - An immunosuppressed man with an isolated necrotic plaque on the chest. PMID- 29349113 TI - Conjunctivitis, mucosal erosions, and moist cutaneous plaques. PMID- 29349114 TI - Evaluation of a new venous catheter blood draw device and its impact on specimen hemolysis rates. AB - Objectives: Blood collections from peripheral intravenous catheters offer several benefits to patients, including reduced needle punctures and patient discomfort, but they risk reducing the quality of blood specimens analyzed by the laboratory. In an effort to balance analytical quality of test results with patient-centered care initiatives, a needle-less blood collection device called PIVOTM was evaluated at two institutions. The primary objective of this study was to assess the ability of the PIVOTM device to provide high-quality blood specimens for laboratory testing compared to current blood collection methods. Methods: Blood specimens drawn using the PIVOTM device were prospectively flagged. A retrospective review was performed comparing the degree and rate of hemolysis for PIVOTM blood collections to both concurrent and historical hemolysis rates for other collection methods. Results: Approximately 7600 PIVOTM blood draws were performed across the two institutions. The hemolysis rates of samples collected with PIVOTM were evaluated using 2380 flagged collections, containing approximately 1200 test orders requiring hemolysis index measurements. The hemolysis rate of PIVOTM-flagged samples (1.8%) was statistically superior to the venipuncture and central line blood collection methods (3.3%), reducing the risk of hemolysis during a venous blood draw by 39%. Conclusions: PIVOTM collections facilitated improvement in the rate and degree of sample hemolysis when compared to venipuncture and central line blood collections. These findings suggest that PIVOTM is capable of delivering samples that are superior to current blood collection methods in terms of hemolysis rate as well as reducing the number of invasive venipunctures required for laboratory testing. PMID- 29349116 TI - Does an advantageous occupational position make women happier in contemporary Japan? Findings from the Japanese Study of Health, Occupation, and Psychosocial Factors Related Equity (J-HOPE). AB - Occupational position is one of the determinants of psychological health, but this association may differ for men and women depending on the social context. In contemporary Japanese society, occupational gender segregation persists despite increased numbers of women participating in the labour market, which may contribute to gender specific patterns in the prevalence of poor psychological health. The present study examined gender specific associations between occupational position and psychological health in Japan, and the potential mediating effects of job control and effort-reward imbalance in these associations. We used data obtained from 7123 men and 2222 women, aged between 18 and 65 years, who participated in an occupational cohort study, the Japanese Study of Health, Occupation, and Psychosocial Factors Related Equity (J-HOPE), between 2011 and 2012. We used logistic regression to examine the association between occupational position and poor psychological health, adjusted for age, working hours, household income and education, as well as psychosocial work characteristics (job control and effort-reward imbalance). The prevalence of poor psychological health increased from manual/service occupations (23%) to professionals/managers (38%) among women, while it did not vary by occupational position among men. In women, the significant association between occupational position and psychological health was not explained by job control, but was attenuated by effort-reward imbalance. Our findings suggest that Japanese women in more advantaged occupational positions are likely to be at a greater risk for poor psychological health due to higher levels of effort-reward imbalance at work. PMID- 29349115 TI - Social connections and suicidal behaviour in young Australian adults: Evidence from a case-control study of persons aged 18-34 years in NSW, Australia. AB - Purpose: There is evidence that social isolation is a risk factor for suicide, and that social connections are protective. Only a limited number of studies have attempted to correlate the number of social connections a person has in their life and suicidal behaviour. Method: Two population-based case-control studies of young adults (18-34 years) were conducted in New South Wales, Australia. Cases included both suicides (n=84) and attempts (n=101). Living controls selected from the general population were matched to cases by age-group and sex. Social connections was the main exposure variable (representing the number of connections a person had in their life). Suicide and attempts as outcomes were modelled separately and in combination using conditional logistic regression modelling. The analysis was adjusted for marital status, socio-economic status, and diagnosis of an affective or anxiety disorder. Results: Following adjustment for other variables, those who had 3-4 social connections had 74% lower odds of suicide deaths or attempts (OR=0.26, 95% CI 0.08, 0.84, p=0.025), and those with 5-6 connections had 89% lower odds of suicide deaths or attempts (OR=0.11 95% CI 0.03, 0.35, p<0.001), compared to those with 0-2 social connections. With the number of social connection types specified as a continuous variable, the odds ratio was 0.39 per connection (95% CI 0.27, 0.56, p<0.001). Conclusions: A greater number of social connections was significantly associated with reduced odds of suicide or attempt. This suggests that suicide prevention initiatives that promote increased social connections at an individual, familial, and wider social levels might be effective. PMID- 29349117 TI - The double burden of malnutrition in Indonesia: Social determinants and geographical variations. AB - The presence of simultaneous under- and over-nutrition has been widely documented in low- and middle-income countries, but global nutritional research has seen only a few large-scale population studies from Indonesia. We investigate the social determinants as well as the geographical variations of under- and over nutrition in Indonesia using the largest public health study ever conducted in the country, the National Basic Health Research 2007 (N=645,032). Multilevel multinomial logistic regression and quantile regression models are fitted to estimate the association between nutritional status and a number of socio economic indicators at both the individual and district levels. We find that: (1) education and income reduce the odds of being underweight by 10-30% but at the same time increase those of overweight by 10-40%; (2) independent from the compositional effect of poverty, income inequality is detrimental to population health: a 0.1 increase in the Gini coefficient is associated with an 8-12% increase in the odds of an individual's being both under- and overweight; and (3) the effects that these determinants have upon nutritional status are not necessarily homogeneous along the continuum of body mass index. Equally important, our analysis reveals that there is substantial spatial clustering of areas with elevated risk of under- or over-nutrition across the 17,000-island archipelago. As of 2007, under-nutrition in Indonesia remains a 'disease of poverty', while over-nutrition is one of affluence. The income inequality accompanying Indonesia's economic growth may aggravate the dual burden of under- and over-nutrition. A more equitable economic policy and a policy that improves living standards may be effective for addressing the double burden. PMID- 29349118 TI - Assessing the relationship between dental appearance and the potential for discrimination in Ontario, Canada. AB - Poor oral health is influenced by a variety of individual and structural factors. It disproportionately impacts socially marginalized people, and has implications for how one is perceived by others. This study assesses the degree to which residents of Canada's most populated province, Ontario, recognize income-related oral health inequalities and the degree to which Ontarians blame the poor for these differences in health, thus providing an indirect assessment of the potential for prejudicial treatment of the poor for having bad teeth. Data were used from a provincially representative survey conducted in Ontario, Canada in 2010 (n=2006). The survey asked participants questions about fifteen specific conditions (e.g. dental decay, heart disease, cancer) for which inequalities have been described in Ontario, and whether participants agreed or disagreed with various statements asserting blame for differences in health between social groups. Binary logistic regression was used to determine whether assertions of blame for differences in health are related to perceptions of oral health conditions. Oral health conditions are more commonly perceived as a problem of the poor when compared to other diseases and conditions. Among those who recognize that oral conditions more commonly affect the poor, particular socioeconomic and demographic characteristics predict the blaming of the poor for these differences in health, including sex, age, education, income, and political voting intention. Social and economic gradients exist in the recognition of, and blame for, oral health conditions among the poor, suggesting a potential for discrimination amongst socially marginalized groups relative to dental appearance. Expanding and improving programs that are targeted at improving the oral and dental health of the poor may create a context that mitigates discrimination. PMID- 29349119 TI - The effect of deworming on early childhood development in Peru: A randomized controlled trial. AB - Background: There is a knowledge gap on the effect of early childhood deworming on development in low- and middle-income countries. This evidence is important in the critical window of growth and development before two years of age. Methods: A randomized controlled trial of the benefit, and optimal timing and frequency, of deworming on development was conducted in Iquitos, Peru. Children were enrolled during routine 12-month growth and development visits and randomly allocated to: (1) deworming at the 12-month visit and placebo at the 18-month visit; (2) placebo at the 12-month visit and deworming at the 18-month visit; (3) deworming at the 12 and 18-month visits; or (4) placebo at the 12 and 18-month visits. The Bayley Scales of Infant Development III was used to assess cognitive, language and motor skills at the 12 and 24-month visits. One-way ANOVA analyses used an intention-to-treat approach. Results: Between September 2011 and June 2012, 1760 children were enrolled. Attendance at the 24-month visit was 88.8% (n=1563). Raw scores on all subtests increased over 12 months; however, cognitive and expressive language scaled scores decreased. There was no statistically significant benefit of deworming, or effect of timing or frequency, on any of the development scores. Baseline height and weight and maternal education were associated with development scores at 24 months. Conclusions: After 12 months of follow-up, an overall benefit of deworming on cognition, language or fine motor development was not detected. Additional integrated child and maternal interventions should be considered to prevent developmental deficits in this critical period. PMID- 29349120 TI - Trajectories and predictors of alcohol consumption over 21 years of mothers' reproductive life course. AB - Introduction: Little is known about the patterns of women's alcohol consumption over their reproductive life course. This study identifies trajectories of alcohol consumption by mothers over 21 years of their reproductive life course and examines baseline predictors of these trajectories. Methods: Data were obtained from a prospective cohort study of 3715 women in Brisbane, Queensland, Australia over 21 years of follow-up. Women's alcohol consumption was measured by frequency and quantity of use across the surveys. Potential predictors and confounding variables were assessed at baseline. Group based-trajectory modelling was used to identify typical drinking trajectories over the maternal reproductive life course. Multinomial logistic regression was employed to examine predictors associated with these trajectories. Results: Four trajectories of alcohol consumption were indentified for mothers over the 21-year period. These trajectories included abstainers (11.9%), low-stable drinkers (58.0%), moderate escalating drinkers (25.3%), and heavy-escalating drinkers (4.8%). After adjustment for significant covariates, membership of the abstaining trajectory was predicted by lower family income, being married, and high frequency of church attendance while membership of the heavier-escalating trajectory was associated with women who were not currently married, never went church and had unhealthy lifestyle behaviours. Conclusions: Patterns of women's alcohol consumption exhibit a high level of stability for abstainers and women who drink at low levels. After the birth of their child, there are some changes in alcohol consumption for the moderate and heavy-escalating alcohol consumption groups. Low risk patterns of consumption are associated with variables which generally reflected a low risk behaviour lifestyle. Intervention programmes should particularly target women engaging in the heavy-escalating alcohol consumption group as this group increase their consumption shortly after the birth of their child. There is a need to understand more about the social and health consequences to mothers and their children of being in the moderate and heavy escalating drinking trajectory groups. PMID- 29349121 TI - Adherence to clinical preventive services guidelines: Population-based online randomized trial. AB - The Patient Protection and Affordable Care Act (ACA) addresses use of clinical preventive services relative to evidence-based guidelines by mandating that most health insurance plans provide coverage without cost-sharing for services that receive an A or B rating. However, knowledge about and positive attitudes towards guidelines are extremely low. This study was a population-based randomized experiment to examine beliefs about and intentions to adhere to screening guidelines for the Prostate Specific Antigen (PSA) and Pap tests. The study had two objectives: (1) test reactions to and understanding of guidelines, and (2) experimentally compare receptivity to messages to promote PSA and Pap test recommendations. We first surveyed a population-based sample of (1) US adults age 18 and over, (2) subsample of women aged 65 or younger, (3) subsample of men aged 40 or older. A sample of 2923 completed an initial questionnaire. Next a subset of participants meeting eligibility criteria were recruited from the population based sample into a message testing experiment: (1) women aged 65 or younger, (2) and men aged 40 or older. Participants meeting these eligibility requirements were randomized to gain, loss, or balanced PSA (men) or Pap test (women) message stimulus conditions and followed for 8 weeks. Data were collected through the GfK Custom Research panel. A total of 2401 were eligible, 2321 completed the baseline, and 1730 completed follow up. Mixed effect regression models revealed that higher receptivity to messages was associated with greater intentions to seek cancer information and to speak to a Doctor about PSA and Pap tests. The loss frame was associated with higher intentions to speak to friends and family about PSA and Pap tests. Finally, perceived importance and personal understanding of guidelines predicted intentions to seek more information about them. This study contributes to evidence on how best to inform and engage consumers regarding preventive services. PMID- 29349122 TI - Fast food restaurant locations according to socioeconomic disadvantage, urban regional locality, and schools within Victoria, Australia. AB - Features of the built environment provide opportunities to engage in both healthy and unhealthy behaviours. Access to a high number of fast food restaurants may encourage greater consumption of fast food products. The distribution of fast food restaurants at a state-level has not previously been reported in Australia. Using the location of 537 fast food restaurants from four major chains (McDonald's, KFC, Hungry Jacks, and Red Rooster), this study examined fast food restaurant locations across the state of Victoria relative to area-level disadvantage, urban-regional locality (classified as Major Cities, Inner Regional, or Outer Regional), and around schools. Findings revealed greater locational access to fast food restaurants in more socioeconomically disadvantaged areas (compared to areas with lower levels of disadvantage), nearby to secondary schools (compared to primary schools), and nearby to primary and secondary schools within the most disadvantaged areas of the major city region (compared to primary and secondary schools in areas with lower levels of disadvantage). Adjusted models showed no significant difference in location according to urban-regional locality. Knowledge of the distribution of fast food restaurants in Australia will assist local authorities to target potential policy mechanisms, such as planning regulations, where they are most needed. PMID- 29349123 TI - Mortality among white, black, and Hispanic male and female state prisoners, 2001 2009. AB - Although much research considers the relationship between imprisonment and mortality, little existing research has tested whether the short-term mortality advantage enjoyed by prisoners extends to Hispanics. We compared the mortality rates of non-Hispanic white, non-Hispanic black, and Hispanic male and female state prisoners to mortality rates in the general population using data from the Deaths in Custody Reporting Program, the National Prisoner Statistics, the National Corrections Reporting Program, and the Centers for Disease Control and Prevention. The results indicate that the mortality advantage for prisoners was greatest for black males, followed by black females, Hispanic males, white females, and white males. Hispanic female prisoners were the only group not at a mortality advantage relative to the general population, with an SMR of 1.18 [95% CI: 0.93-1.43]. Taken together, the results suggest that future research should seek to better understand the curious imprisonment-mortality relationship among Hispanic females, although given the small number of inmate deaths that happen to this group (~0.6%), this research should not detract from broader research on imprisonment and mortality. PMID- 29349124 TI - More than just numbers: Suicide rates and the economic cycle in Portugal (1910 2013). AB - Suicides are a major concern for public health first and foremost because they are an avoidable cause of death. Moreover, they can be an indicator of self reported emotional satisfaction and a good marker of overall well-being. In this study we examine how different economic and social aspects affected Portuguese suicide rates for more than one hundred years (1910-2013). We place this exercise in the specific historical context of the XX and early XXI century in Portugal, emphasizing the role of economic recessions and expansions. Controlling for aspects like wars, health care availability, political instability, and demographic changes, we find a strong association between a decline in the growth rate of real output and an increase in suicide rates for the whole population. In this regard, while male suicide rates are non-negligibly influenced by economic downturns, female suicide rates are in general more responsive to a more open political and economic environment. Our results are robust if we consider the mid term cyclical relationship. Our findings advocate that, during recessions, public health responses should be seen as a crucial component of suicide prevention. PMID- 29349126 TI - La desesperacion in Latino migrant day laborers and its role in alcohol and substance-related sexual risk. AB - The purpose of this study was to better understand the relation between psychological distress and alcohol and substance related sexual risk in Latino migrant day laborers (LMDLs). In addition to examining the roles of depression and anxiety, it was also necessary to examine the role of desesperacion, a popular Latino idiom of distress frequently expressed by LMDLs in response to the thwarting of major migration related life goals such as traveling to the U.S. in search of work to support families, projects and purchases in country of origin. Given the structural vulnerability of LMDLs to under-employment and frequent unemployment, LMDLs also refer to desesperacion as a prelude to problem drinking, substance use, and sexual risk taking. Hence we developed and validated a scale of desesperacion for LMDLs to explore this culturally relevant construct of psychological distress in this unique population of Latinos. Based on a cross sectional survey of 344 LMDLs, this study found that the dissatisfaction subscale of desesperacion predicted alcohol-related sexual risk taking, while depression predicted substance-related sexual risk taking. These findings are discussed including implications of preventing alcohol and substance related sexual risk taking in LMDLs. PMID- 29349125 TI - Built environment assessment: Multidisciplinary perspectives. AB - Context: As obesity has become increasingly widespread, scientists seek better ways to assess and modify built and social environments to positively impact health. The applicable methods and concepts draw on multiple disciplines and require collaboration and cross-learning. This paper describes the results of an expert team's analysis of how key disciplinary perspectives contribute to environmental context-based assessment related to obesity, identifies gaps, and suggests opportunities to encourage effective advances in this arena. Evidence acquisition: A team of experts representing diverse disciplines convened in 2013 to discuss the contributions of their respective disciplines to assessing built environments relevant to obesity prevention. The disciplines include urban planning, public health nutrition, exercise science, physical activity research, public health and epidemiology, behavioral and social sciences, and economics. Each expert identified key concepts and measures from their discipline, and applications to built environment assessment and action. A selective review of published literature and internet-based information was conducted in 2013 and 2014. Evidence synthesis: The key points that are highlighted in this article were identified in 2014-2015 through discussion, debate and consensus-building among the team of experts. Results focus on the various disciplines' perspectives and tools, recommendations, progress and gaps. Conclusions: There has been significant progress in collaboration across key disciplines that contribute to studies of built environments and obesity, but important gaps remain. Using lessons from interprofessional education and team science, along with appreciation of and attention to other disciplines' contributions, can promote more effective cross-disciplinary collaboration in obesity prevention. PMID- 29349127 TI - Rollout of community-based family health strategy (programa de saude de familia) is associated with large reductions in neonatal mortality in Sao Paulo, Brazil. AB - Rationale: Several recent studies suggest that Brazil's Estrategia Saude de Familia (Family Health Strategy-FHS) has contributed to declines in mortality at the national and regional level. Comparatively little is known whether this approach is effective in urban populations with relatively easy access to health services. Objectives: To use detailed medical data collected as part of Sao Paulo's Western Region project to examine whether the FHS program had an impact on child health in Sao Paulo, Brazil. Results: No associations were found between FHS and birth weight (OR 1.03, 95% CI 0.93-1.29), gestational length (OR 0.98, 95% CI 0.83-1.15) or stillbirth (OR 1.51, 95% CI 0.75-3.03). FHS eligibility was associated with a 42% reduction in the odds of child mortality (OR 0.58, 95% CI 0.34, 0.91), with largest effect sizes for the early neonatal period (OR 0.18, 95% CI 0.04-0.79). Conclusions: Community based health delivery platforms may be a highly effective way to reduce neonatal mortality in urban areas of low and middle income countries, even when access to general health services is almost universal. PMID- 29349128 TI - Self-efficacy is associated with increased food security in novel food pantry program. AB - We examined the effect of a novel food pantry intervention (Freshplace) that includes client-choice and motivational interviewing on self-efficacy and food security in food pantry clients. The study was designed as a randomized control trial. Participants were recruited over one year from traditional food pantries in Hartford, CT. Participants were randomized to Freshplace or traditional food pantries (controls) and data collection occurred at baseline with quarterly follow-ups for 18 months. Food security was measured using the USDA 18-item Food Security Module. A newly developed scale was utilized to measure self-efficacy. Scale reliability was measured using a Cronbach alpha test; validity was measured via correlating with a related variable. Analyses included chi-square tests for bivariate analyses and hierarchical linear modeling for longitudinal analyses. A total of 227 adults were randomized to the Freshplace intervention (n=112) or control group (n=115). The overall group was 60% female, 73% Black, mean age=51. The new self-efficacy scale showed good reliability and validity. Self-efficacy was significantly inversely associated with very low food security (p<.05). Being in the Freshplace intervention (p=.01) and higher self-efficacy (p=.04) were independently associated with decreased very low food security. The traditional food pantry model fails to recognize the influence of self-efficacy on a person's food security. A food pantry model with client-choice, motivational interviewing and targeted referral services can increase self-efficacy of clients. Prioritizing the self-efficacy of clients over the efficiency of pantry operations is required to increase food security among disadvantaged populations. PMID- 29349129 TI - Improving but unequal: Temporal trends in Chinese self-rated health, 1990-2012. AB - This study examines temporal trends in the self-rated health of Chinese adults from 1990 to 2012. Concentration on this particular period in Chinese history provides insights into the health implications of China's massive societal transformation induced by economic reform. A series of cross-classified random effects models were estimated predicting favorable health status across time periods and adjusted for age, cohort effect and individual-level covariates. Results show that more recent birth cohorts exhibit better health conditions than earlier birth cohorts. However, period effects had a more profound effect than that of birth cohort. Net of age, cohort and individual-level covariates, there is a significant and increasing trend in self-rated health since the early 1990s. The period pattern was non-monotonic, with health improvement in the early 1990s, a dip later in that decade, but more evidence of improvement by 2012. We also found that health disparities have widened over the past 20 years, particularly on the basis of income and educational attainment. PMID- 29349130 TI - The Hispanic health paradox: New evidence from longitudinal data on second and third-generation birth outcomes. AB - This study examines the birth weight of second and third-generation Hispanics born in California and Florida, two of the major immigrant destination states in the US. I exploit a unique dataset of linked birth records for two generations of children born in California and Florida (1970-2009) and linear probability models to investigate the generational decline in the birth outcomes of Hispanics in the US. The data allow using an extensive set of socio-demographic controls and breaking down the results by country of origin. Second-generation children of Mexican and Cuban origin have better birth outcomes than children of US-born white women. Children of Puerto Rican origin have instead worse birth outcomes. The advantage observed among second-generation Hispanics erodes substantially in the third generation but third-generation Mexicans retain some of it. PMID- 29349131 TI - Predictors of patient's intentions to participate in pragmatic clinical trials: An initial exploration. AB - The Veterans Health Administration is implementing a pragmatic trial research program, called Point of Care Research (POC-R). The purpose of this telephone survey in which respondents were randomized to different framing conditions of the purpose of POC-R was to determine the impact of differing frames of the purpose of POC-R on attitudes towards the program and intentions to participate; and the relative importance of different beliefs and attitudes in discriminating low vs. high intenders to participate in POC-R. The survey addressed veterans' perceptions and attitudes towards POC-R, and their willingness to participate in a pragmatic trial. Overall, respondents felt positively towards POC-R and intended to participate. Differing frames of the purpose of POC-R were not associated with either attitudes (towards the program) or intentions to participate. However, specific beliefs and attitudes toward POC-R program were predictive of intentions to participate. PMID- 29349132 TI - Why is multiple micronutrient powder ineffective at reducing anaemia among 12-24 month olds in Colombia? Evidence from a randomised controlled trial. AB - In Colombia's bottom socio-economic strata, 46.6% of children under two are anaemic. A prevalence of above 20% falls within the WHO guidelines for daily supplementation with multiple micronutrient powder (MNP). To evaluate the effect of daily MNP supplementation on anaemia amongst Colombian children aged 12-24 months we ran a cluster RCT (n=1440). In previous work, we found the intervention had no impact on haemoglobin or anaemia in this population. In this current paper, we investigate this null result and find it cannot be explained by an underpowered study design, inaccurate measurements, low adoption of and compliance with the intervention, or crowding out through dietary substitution. We conclude that our intervention was ineffective at reducing rates of childhood anaemia because MNP itself was inefficacious in our population, rather than poor implementation of or adherence to the planned intervention. Further analysis of our data and secondary data suggests that the evolution with age of childhood anaemia in Colombia, and its causes, appear different from those in settings where MNP has been effective. Firstly, rates of anaemia peak at much earlier ages and then fall rapidly. Secondly, anaemia that remains after the first year of life is relatively, and increasingly as children get older, unrelated to iron deficiency. We suggest that factors during gestation, birth, breastfeeding and early weaning may be important in explaining very high rates of anaemia in early infancy. However, the adverse effects of these factors appear to be largely mitigated by the introduction of solid foods that often include meat. This renders population wide MNP supplementation, provided after a diet of solid foods has become established, an ineffective instrument with which to target Colombia's childhood anaemia problem. PMID- 29349133 TI - Adverse outcomes in bereaved mothers: The importance of household income and education. AB - Intense and enduring psychological distress has been well-documented in numerous studies on bereaved parents including anxious, depressive, and traumatic stress symptoms. A state of poverty is also known to increase the risk of psychological distress in the general population, yet this variable has not yet been sufficiently evaluated in outcomes specifically for bereaved parents. This study is the first to investigate poverty, education, and parental bereavement while examining the relative risk of other variables as informed by the literature. The findings reveal that poverty was the strongest predictor of psychological distress when compared to others factors which have traditionally been considered significant in parental bereavement. Bereaved parents living in poverty may be less likely to seek support and have fewer available resources. Practice and policy implications are discussed. PMID- 29349134 TI - Influence of volunteer-led net step exercise class on older people's self-rated health in a depopulated town: A longitudinal study. AB - In a depopulated region where population aging is advancing, it is necessary to establish a method so local residents themselves can be actively involved in older people's health promotion. Net Step Exercise, a novel dual-task walking program, introduced residents to opportunities for physical activities and social participation without any health specialist support. In one depopulated town (Ikeda, Nakagawa-gun, Hokkaido, Japan), volunteer residents have held Net Step Exercise classes throughout the town since 2007. We longitudinally examined the influence of volunteer-led Net Step Exercise class participation on subsequent self-rated health in all individuals aged 70-79 years living in Ikeda. A total of 662 people who completed a baseline mail-in questionnaire survey in 2012 were followed until 2014. Logistic regression analysis was performed to examine the association with self-rated health after two years of class participation once a month or more at baseline, after controlling for confounds such as age, sex, years of education, living alone, baseline self-rated health, regular exercise, and other physical activities. The odds ratio of poor self-rated health in older people who participated in classes was 0.53 (95% confidence interval [CI]: 0.34 0.85) compared to older people not participating in classes. Even after confounding factors were adjusted, the odds ratio of class participation was 0.50 (95% CI: 0.29-0.85). This study showed that participation in volunteer-led Net Step Exercise might prevent poor self-rated health. Such Net Step Exercise classes are a feasible method for older people's health promotion in depopulated municipalities. PMID- 29349135 TI - A life-course perspective on legal status stratification and health. AB - Scholars have expressed growing interest in the relationship between legal status stratification and health. Nevertheless, the extant research often lacks theoretical underpinnings. We propose the life-course perspective as a theoretical lens with which to understand relationships between legal status stratification and health outcomes. In particular, the life-course perspective guides researchers' attention to historical contexts that have produced differential social, political, and economic outcomes for immigrants based on legal status, and to the potentially long-term and intergenerational relationships between legal status stratification and health. We review four key dimensions of the life-course perspective and make recommendations for future directions in public health research on legal status and health. PMID- 29349137 TI - Premarital childbearing in sub-Saharan Africa: Can investing in women's education offset disadvantages for children? AB - Premarital childbearing is common in many parts of sub-Saharan Africa, and may become increasingly so with the rise in women's age at first marriage. These trends are concerning given the severe childhood health consequences associated with being born premaritally. However, women's could condition the experience of having a premarital birth in a way that lessens its consequences for children. Extending the large literature on the child health benefits of mothers' education including her educational attainment and acquisition of key educational skills - I analyze whether the consequences of being born premaritally are lessened among children whose mothers are more highly-educated. The study focuses on Malawi, a southeast African country where child mortality rates remain high. I use Demographic and Health Survey data to estimate discrete-time logistic regression models (N=30,411 children younger than age five) of the relationships between premarital childbearing, mothers' educational background, and child mortality. The findings confirm that though being born premaritally is associated with higher child mortality, this is only true for children whose mothers have never been to school or discontinued at the primary level and/or never learned how to read. There is no evidence that being born premaritally is associated with elevated mortality among children whose mothers have been to secondary school and/or know how to read. The results demonstrate that analyzing how premarital childbearing intersects with other sources of health inequality enhances our understanding of the circumstances under which it poses the greatest risk to child well-being in sub-Saharan Africa. PMID- 29349136 TI - Breast cancer presentation delays among Arab and national women in the UAE: a qualitative study. AB - Breast cancer (BC) is a disease that has improved prospects for survival if detected and treated early. Delayed help-seeking behavior, with poor survival as a consequence, is an important public health issue in the Middle East. More than 75% of breast cancer patients in the United Arab Emirates (UAE) seek medical advice after experiencing a sign or symptom of the disease and many seek such advice late. Our aim was to explore factors influencing delayed presentation for treatment after self-discovery of symptoms consistent with breast cancer in Arab women in the United Arab Emirates (UAE), and to explore facilitators and barriers of women's health seeking behavior in the complex religiously dominated society of the UAE. A qualitative descriptive approach using semi-structured interviews was used. We interviewed nineteen BC survivors aged 35-70 who have experienced delayed presentation to treatment after symptomatic recognition of BC. The time interval between initial experience of symptoms consistent with BC, and taking action to seek medical help was between three months to three years. The key themes that emerged from the interviews were varying responses to symptom recognition, fear of societal stigmatization, and concerns regarding abandonment by spouse because of BC. Culture has a strong influence on the decisions of women in the UAE society. The lack of awareness about signs and symptoms of BC and routine screening has an important effect on symptom appraisal and subsequently decision making regarding options for treatment. PMID- 29349138 TI - Psychosocial job quality in a national sample of working Australians: A comparison of persons working with versus without disability. AB - Objectives: There is growing international policy interest in disability employment, yet there has been little investigation of job quality among people working with disability. This study uses Australian national data to compare the psychosocial job quality of people working with versus without disability. Methods: We used 10 annual waves of data from a large representative Australian panel survey to estimate the proportion of the population experiencing poorer psychosocial job quality (overall and by individual 'adversities' of low job control, high demands, high insecurity, and low fairness of pay) by disability status and impairment type. We used logistic regression to examine the pooled cross-sectional associations between disability and job quality, adjusting for age, sex, education and job type. Results: Those working with any disability showed approximately 25% higher odds of reporting one or more adversity at work (OR: 1.23, 95% CI: 1.15, 1.31), and this finding was consistent across impairment types with the exception of intellectual/developmental disability. Estimates were largely unchanged after adjustments. Similar results were found for reporting two or more adversities compared one or more. Conclusions: We observed that working people with a disability in Australia reported systematically poorer psychosocial job quality than those working without disability. These results suggest the need for further research to understand the reasons for these patterns, as well as policy and practice efforts to address this inequity. PMID- 29349140 TI - Working out what works: The case of midwife led care - Commentary on: Is model of care associated with infant birth outcomes among vulnerable women? A scoping review of midwifery-led versus physician-led care. PMID- 29349139 TI - Is model of care associated with infant birth outcomes among vulnerable women? A scoping review of midwifery-led versus physician-led care. AB - This scoping review investigates if, over the last 25 years in high resource countries, midwives' patients of low socioeconomic position (SEP) were at more or less risk of adverse infant birth outcomes compared to physicians' patients. Reviewers identified 917 records in a search of 12 databases, grey literature, and citation lists. Thirty-one full documents were assessed and nine studies met inclusion criteria. Eight studies were assessed as moderate in quality; one study was given a weak rating. Of the moderate quality studies, the majority found no statistical difference in outcomes according to model of care for preterm birth, low or very low birth weight, or NICU admission. No study reported a statistically significant difference for small for gestational age birth (2 studies), or mean or low Apgar score (4 studies). However, one study found a reduced risk of preterm birth (AOR=0.70, p<0.01), and heavier mean infant birth weight (3325 g vs. 3282 g, p<0.01) for midwifery patients. Another study reported lower risk of low (RR=0.59, 95% CI: 0.46, 0.73) and very low birthweight (RR=0.44, 95% CI: 0.23, 0.85) for midwifery care. And, a third study reported a decrease in stays (1-3 days) in NICU (Adjusted Risk Difference=-1.8, 95% CI: 3.9, 0.2) for midwifery patients, though no overall difference in NICU admission of any duration. Other studies reported significant differences favoring midwifery care for mean birth weight (3598 g vs. 3407.3 g, p<0.05; 3233 g vs. 3089 g, p<0.05; 2 studies) and very low birth weight (OR=0.35, 95% CI:0.1, 0.9), for sub-groups within the larger study populations. This scoping review documented heterogeneity in study designs and analytical methods, inconsistent findings, moderate methodological quality, and lack of currency. There is a need for new studies to definitively establish if and how a midwifery-led model of care influences birth outcomes for women of low SEP. PMID- 29349141 TI - Intraclass correlation values for adolescent health outcomes in secondary schools in 21 European countries. AB - Background: Cluster randomised controlled trials (CRCTs) are increasingly used to evaluate the effectiveness of interventions for improving health. A key feature of CRCTs is that individuals in clusters are often more alike than individuals in different clusters, irrespective of treatment. This similarity within clusters needs to be taken into account when planning CRCTs to obtain adequate sample sizes, and when analysing clustered data to obtain correct estimates. Methods: Nationally representative data from 15 to 16 year olds were analysed, from 21 of the 35 countries that participated in the 2007 European School Survey Project on Alcohol and Other Drugs. Within country school level intra-class correlation coefficients (ICCs) were calculated for substance use (self-reported alcohol use, regular alcohol use, binge drinking, any smoking, regular smoking, and illicit drug use) and psychosocial health (depressive mood and self-esteem). Unadjusted and adjusted ICCs are presented. ICCs are adjusted for student sex and socioeconomic status. Results: ICCs ranged from 0.01 to 0.21, with the highest (0.21) reported for regular smoking. Within country school level ICCs varied substantially across health outcomes, and among countries for the same health outcomes. Estimated ICCs were consistently higher for substance use (range 0.01 0.21), than for psychosocial health (range 0.01-0.07). Within country ICCs for health outcomes varied by changes in the measurement of particular health outcomes, for example the ICCs for regular smoking (range 0.06-0.21) were higher than those for having smoked at all in the last month (range 0.03-0.17). Conclusions: For school level ICCs to be effectively utilised in informing sample size requirements for CRCTs and adjusting estimates from meta-analyses, the school level ICCs need to be both country and outcome specific. PMID- 29349142 TI - Towards an understanding of the structural determinants of oral health inequalities: A comparative analysis between Canada and the United States. AB - Objective: To compare the magnitude of, and contributors to, income-related inequalities in oral health outcomes within and between Canada and the United States over time. Methods: The concentration index was used to estimate income related inequalities in three oral health outcomes from the Nutrition Canada National Survey 1970-1972, Canadian Health Measures Survey 2007-2009, Health and Nutrition Examination Survey I 1971-1974, and National Health and Nutrition Examination Survey 2007-2008. Concentration indices were decomposed to determine the contribution of demographic and socioeconomic factors to oral health inequalities. Results: Our estimates show that over time in both countries, inequalities in decayed teeth and edentulism were concentrated among the poor and inequalities in filled teeth were concentrated among the rich. Over time, inequalities in decayed teeth increased and decreased for measures of filled teeth and edentulism in both countries. Inequalities were higher in the United States compared to Canada for filled and decayed teeth outcomes. Socioeconomic characteristics (education, income) contributed greater to inequalities than demographic characteristics (age, sex). As well, income contributed more to inequalities in recent surveys in both Canada and the United States. Conclusions: Inequalities in oral health have persisted over the past 35 years in Canada and the United States, and are associated with age, sex, education, and income and have varied over time. PMID- 29349143 TI - Changes in visitor profiles and activity patterns following dog supportive modifications to parks: A natural experiment on the health impact of an urban policy. AB - Urban parks are important settings for physical activity, but few natural experiments have investigated the influences of park modifications on activity patterns and visitor profiles.We assessed the impact of implementing a municipal policy on off-leash dogs in city parks in Calgary (Alberta, Canada). Systematic observation undertaken in 2011 and 2012 within four parks captured patterns of use, activities, and visitors' characteristics. After baseline data collection, off-leash areas were created in two parks only. We compared changes in the sociodemographic and activity profiles in all parks between 2011 and 2012. Visitors with dogs participated in less intense activity relative to visitors without dogs. In both modified parks, the intensity of children's activities decreased, while the intensity of adults' activities remained stable. Adjusting for visitor characteristics, the likelihood of dog-related visits, relative to other activities, significantly decreased in one of the two modified parks (odds ratio 0.55, p<.05). Accommodating off-leash dogs in parks has the potential to modify activities undertaken inside parks as well as the profile of visitors, but may not increase park visits among dog-walkers in the short term. Recreation, park, and urban planners and policy-makers need to consider the needs and preferences of the broader community in the design and redesign of public parks. PMID- 29349144 TI - Food and housing insecurity and health status among U.S. adults with and without prior military service. AB - Food and housing insecurity may contribute to poorer mental and physical health. It is unclear as to whether those with prior military service, compared to those without, are more vulnerable to these current stressors. The objective of this study was to use U.S. population-based data to determine whether prior military service moderates the association of food and housing insecurity with poor mental and physical health. We analyzed data from nine states administering the Social Context module from the 2011 and 2012 Behavioral Risk Factor Surveillance System. Multivariable logistic regression was used to examine the associations of housing and food insecurity with poor mental and physical health and potential modification by military service. Compared with those with a history of military service, those without had higher prevalence of food insecurity (23.1% versus 13.7%) and housing insecurity (36.0% versus 22.5%). Food insecurity was associated with poor mental and physical health (mental health: odds ratio (OR)=3.47, 95% confidence interval (CI)=[3.18-3.77]; physical health: OR=3.21, 95% CI=[2.92-3.53]). Similar associations were observed between housing insecurity and poor mental and physical health. Prior military service was significantly associated with poor physical health. Interaction terms of prior military service with food and housing were not statistically significant. Food and housing insecurity does not appear to differentially impact mental and physical health among those with and without military service. PMID- 29349145 TI - Residential environments, alcohol advertising, and initiation and continuation of alcohol consumption among adolescents in urban Taiwan: A prospective multilevel study. AB - Background: Research indicates that place characteristics and the media environment are important contextual determinants of underage drinking behaviors in Western countries, but it is unknown whether these exposures influence adolescent alcohol consumption outside Western contexts, including in Asia's emerging global alcohol markets. Guided by the social ecological framework, we prospectively investigated the influences of place characteristics and alcohol advertising on initiation and continuation of alcohol consumption among adolescents in Taipei, Taiwan. Methods: Data on individual-level characteristics, including alcohol use behaviors and perceived exposure to alcohol advertising, were obtained from two waves of a longitudinal school-based study through a stratified probability sampling method in 2010 (Grade 7/Grade 8, aged 13-14 years old) and 2011-2012 (Grade 9, aged 15 years old) from 1795 adolescents residing in 22 of 41 districts in Taipei. Data on district-level characteristics were drawn from administrative sources and Google Street View virtual audit to describe districts where adolescents lived at baseline. Hierarchical generalized linear models tested hypotheses about the associations of place characteristics and perceived alcohol advertising with underage drinking, with stratification by baseline lifetime alcohol consumption. Results: Among alcohol-naive adolescents, lower district-level economic disadvantage, a higher proportion of betel nut kiosks (a relatively unregulated alcohol source) compared to off-premises alcohol outlets, and exposure to television-based alcohol advertising predicted increased likelihood of alcohol initiation at one-year follow-up. Among alcohol-experienced adolescents, greater spatial access to off-premises alcohol outlets, and lower access to metro rapid transportation (MRT) and to temples were found to predict a subsequent increased likelihood of continued alcohol use. Parental drinking moderated the relationship between district-level violent crime and initiation of alcohol consumption. Conclusions: These findings suggest that local social economic status, alcohol access, and institutional resource and individual media exposure affect underage drinking behaviors in Taiwan. We discuss potential public health implications for place-based interventions. Future research on place, media, and adolescent alcohol consumption in Asian contexts is warranted. PMID- 29349146 TI - Inpatient migration patterns in persons with spinal cord injury: A registry study with hospital discharge data. AB - This study investigated and compared patient migration patterns of persons with spinal cord injury, the general population and persons with morbid obesity, rheumatic conditions and bowel disease, for secondary health conditions, across administrative boundaries in Switzerland. The effects of patient characteristics and health conditions on visiting hospitals outside the residential canton were examined using complete, nationwide, inpatient health records for the years 2010 and 2011. Patients with spinal cord injury were more likely to obtain treatment outside their residential canton as compared to all other conditions. Facilitators of patient migration in persons with spinal cord injury and the general hospital population were private or accidental health insurances covering costs. Barriers of patient migration in persons with spinal cord injury were old age, severe multimorbidity, financial coverage by basic health insurance, and minority language region. PMID- 29349148 TI - Assessing adolescent spiritual health and well-being (commentary related to Social Science & Medicine - Population Health, ref: SSMPH-D-15-00089). PMID- 29349147 TI - Developmental patterns of adolescent spiritual health in six countries. AB - The spiritual health of adolescents is a topic of emerging contemporary importance. Limited numbers of international studies provide evidence about developmental patterns of this aspect of health during the adolescent years. Using multidimensional indicators of spiritual health that have been adapted for use within younger adolescent populations, we therefore: (1) describe aspects of the perceptions of the importance of spiritual health of adolescents by developmental stage and within genders; (2) conduct similar analyses across measures related to specific domains of adolescent spiritual health; (3) relate perceptions of spiritual health to self-perceived personal health status. Cross sectional surveys were administered to adolescent populations in school settings during 2013-2014. Participants (n=45,967) included eligible and consenting students aged 11-15 years in sampled schools from six European and North American countries. Our primary measures of spiritual health consisted of eight questions in four domains (perceived importance of connections to: self, others, nature, and the transcendent). Socio-demographic factors included age, gender, and country of origin. Self-perceived personal health status was assessed using a simple composite measure. Self-rated importance of spiritual health, both overall and within most questions and domains, declined as young people aged. This declining pattern persisted for both genders and in all countries, and was most notable for the domains of "connections with nature" and "connections with the transcendent". Girls consistently rated their perceptions of the importance of spiritual health higher than boys. Spiritual health and its domains related strongly and consistently with self-perceived personal health status. While limited by the 8-item measure of perceived spiritual health employed, study findings confirm developmental theories proposed from qualitative observation, provide foundational evidence for the planning and targeting of interventions centered on adolescent spiritual health practices, and direction for the study of spiritual health in a general population health survey context. PMID- 29349149 TI - The relationship between relative deprivation and self-rated health among Palestinian women in refugee camps in Lebanon. AB - Background: Relative deprivation (RD) has been advanced as a theory to explain the relationship between income inequality and health in high-income countries. In this study, we tested the theory in a low-income protracted refugee setting in a middle-income country. Methods: Using data from the 2010 Socioeconomic Survey of Palestine Refugees in Lebanon, we examined the relationship between RD and health among a representative sample of Palestinian refugee women (N=1047). Data were gathered utilizing a household questionnaire with information on socio demographics and an individual-level questionnaire with information on the health of each respondent. We examined self-rated health (SRH) as the main health measure but also checked the sensitivity of our results using self-reported chronic conditions. We used two measures for absolute SES: total household monthly expenditures on non-food goods and services and total household monthly expenditures on non-health goods and services. With refugee camp as a reference group, we measured a household's RD as a household's rank of absolute SES within the reference group, multiplied by the distance between its absolute SES and the average absolute SES of all households ranked above it. We investigated the robustness of the RD-SRH relationship using these two alternative measures of absolute SES. Results: Our findings show that, controlling for absolute SES and other possible confounders, women report significantly poorer health when they live in households with a higher score on our RD measure (because of either lower relative rank or lower relative SES compared to households better off in the reference group which we take to be the refugee camp). While RD is always significant as a determinant of SRH under a variety of specifications, absolute SES is not consistently significant. These findings persist when we use self reported chronic conditions as our measure of health instead of SRH, suggesting that the relationship between health and RD may be operating through a psychosocial mechanism. Discussion: Our findings underscore the importance of examining RD under conditions of poverty and in diverse socio-cultural contexts. They also highlight that public health approaches should be concerned with reducing social inequalities in low-income settings in addition to alleviating poverty. PMID- 29349150 TI - Paradox and privilege: A 55-year follow-up of the mortality of Yale College graduates. AB - Objective: Two hypotheses were tested: 1. People from privileged backgrounds had better survival than those from less privileged backgrounds. 2. The advantages of privilege were vitiated by fraternity membership. Methods: A 55-year retrospective cohort study of survival since 1960 of 945 graduates of Yale College followed to 2015. Results: The survival of graduates of private secondary schools (the privileged group) did not differ from that of public school graduates. However, graduates of private secondary schools who had not joined a fraternity in college had significantly better survival than private school graduates who had joined fraternities and than public school graduates, whether fraternity members or not. Conclusions: The benefits of a privileged background in respect of survival were undermined by fraternity membership. It is suggested that both self-selection and substance mis-use may have contributed to the survival difference. PMID- 29349151 TI - Can socioeconomic factors explain geographic variation in overweight in Norway? AB - We explore if the geographic variation in excess body-mass in Norway can be explained by socioeconomic status, as this has consequences for public policy. The analysis was based on individual height and weight for 198,311 Norwegian youth in 2011, 2012 and 2013, stemming from a compulsory screening for military service, which covers the whole population aged seventeen. These data were merged with municipality-level socioeconomic status (SES) variables and we estimated both ecological models and two-level models with a random term at the municipality level. Overweight was negatively associated with income, education and occupation at municipality level. Furthermore, the municipality-level variance in overweight was reduced by 57% in females and 40% in males, when SES factors were taken into account. This suggests that successful interventions aimed at reducing socioeconomic variation in overweight will also contribute to reducing the geographic variation in overweight, especially in females. PMID- 29349152 TI - Cross-border ties and the reproductive health of India's internal migrant women. AB - The literature on how social ties influence sexual and reproductive health is well established; however, one significant limitation of this research is the influence of social ties to hometowns among migrant women. Drawing from cross border social ties literature, the objective of this study is to assess how cross border social ties influence use of family planning and institutional deliveries among internal migrant women in India. Cross-sectional data come from 711 migrant women living in slums in Uttar Pradesh, India. Multivariable logistic regression was used to assess odds of modern use of family planning and odds of institutional deliveries with cross-border tie indicators. Results suggest that higher cross-border ties were associated with 2.35 times higher odds of family planning use (p<0.1) and 2.73 times higher odds of institutional delivery (p<0.05). This study suggests that social ties to hometowns may serve as a protective factor, possibly through increased social support, to migrants in regards to reproductive decision-making and use of reproductive health services. Future studies should explore potential mechanisms for these findings. PMID- 29349153 TI - Inequalities in mental health and well-being in a time of austerity: Baseline findings from the Stockton-on-Tees cohort study. AB - Since 2010, the UK has pursued a policy of austerity characterised by public spending cuts and welfare changes. There has been speculation - but little actual research - about the effects of this policy on health inequalities. This paper reports on a case study of local health inequalities in the local authority of Stockton-on-Tees in the North East of England, an area characterised by high spatial and socio-economic inequalities. The paper presents baseline findings from a prospective cohort study of inequalities in mental health and mental wellbeing between the most and least deprived areas of Stockton-on-Tees. This is the first quantitative study to explore local mental health inequalities during the current period of austerity and the first UK study to empirically examine the relative contributions of material, psychosocial and behavioural determinants in explaining the gap. Using a stratified random sampling technique, the data was analysed using multi-level models that explore the gap in mental health and wellbeing between people from the most and least deprived areas of the local authority, and the relative contributions of material, psychosocial and behavioural factors to this gap. The main findings indicate that there is a significant gap in mental health between the two areas, and that material and psychosocial factors appear to underpin this gap. The findings are discussed in relation to the context of the continuing programme of welfare changes and public spending cuts in the UK. PMID- 29349154 TI - Spirituality, religiosity, aging and health in global perspective: A review. AB - Persistent population aging worldwide is focusing attention on modifiable factors that can improve later life health. There is evidence that religiosity and spirituality are among such factors. Older people tend to have high rates of involvement in religious and/or spiritual endeavors and it is possible that population aging will be associated with increasing prevalence of religious and spiritual activity worldwide. Despite increasing research on religiosity, spirituality and health among older persons, population aging worldwide suggests the need for a globally integrated approach. As a step toward this, we review a subset of the literature on the impact of religiosity and spirituality on health in later life. We find that much of this has looked at the relationship between religiosity/spirituality and longevity as well as physical and mental health. Mechanisms include social support, health behaviors, stress and psychosocial factors. We identify a number of gaps in current knowledge. Many previous studies have taken place in the U.S. and Europe. Much data is cross-sectional, limiting ability to make causal inference. Religiosity and spirituality can be difficult to define and distinguish and the two concepts are often considered together, though on balance religiosity has received more attention than spirituality. The latter may however be equally important. Although there is evidence that religiosity is associated with longer life and better physical and mental health, these outcomes have been investigated separately rather than together such as in measures of health expectancy. In conclusion, there is a need for a unified and nuanced approach to understanding how religiosity and spirituality impact on health and longevity within a context of global aging, in particular whether they result in longer healthy life rather than just longer life. PMID- 29349155 TI - Impact of falling on social participation and social support trajectories in a middle-aged and elderly European sample. AB - Whereas falls are frequent and traumatic events for the elderly, their long-term consequences in terms of the social lives of older fallers are understudied. This study aimed to identify the impact of falling on the trajectories of social participation and social support of older people in Europe. Our sample consisted of 16,583 people aged 50-95 years from 10 European countries who responded to the waves 1, 2 and 4 of the Survey of Health Ageing and Retirement in Europe. The impact of falling on the trajectories of social participation and social support was examined using generalised estimating equation (GEE) models. The effect of the interactions between falling and frailty and between falling and social support on social participation was assessed. Falls were negatively associated with social participation (OR=0.73, p<0.001) and positively associated with social support (OR=2.20, p<0.001). For social participation, this effect was moderated by frailty; the interaction term between frailty and fall highlighted the finding that frailty better explained the global trajectory of social participation compared with falling. Social support did not buffer the negative impact of falling on social participation. Falls can be considered stressful events that have implications beyond the health context. Frail people who have fallen should be targeted in prevention and rehabilitation programmes; specific attention should also be paid to the relatives of fallers, who appeared to be more intensively solicited after a fall. PMID- 29349156 TI - Association of partner, parental, and employment statuses with self-rated health among German women and men. AB - The association of partner, parental, and employment statuses with health is usually discussed in terms of either the multiple role burden hypothesis or the multiple role attachment hypothesis. The first hypothesis states that combining work and family roles increases the burden of responsibility, which in turn increases the pressure and stress associated with competing roles, leading to poorer health. The multiple role attachment hypothesis argues that multiple responsibilities provide attachment to broader networks, which then provide social support and resources that enhance health. We analyzed pooled data from the German Health Update carried out by the Robert Koch Institute in 2009, 2010, and 2012. The data were collected by computer-assisted telephone interviews. The sample comprised 28,086 people aged 30-54 years. The data were assessed with logistic regression analysis and interaction models. The gender-differentiated analysis of partnership, parenthood, and employment, after adjusting for social and demographic characteristics, revealed small interaction effects among all three social roles with self-rated health in women and men. Non-employment showed the strongest relationship with poor self-rated health. It was significantly associated with lower self-rated health in both men and women in most of the family arrangements. These associations were higher in men than in women. Furthermore, in all family arrangements, female part-time employees were as healthy as female fulltime employees. A more subtle association was found in men: the odds of reporting poorer self-rated health were greater among non-parents employed part time than among those employed full time, but lower than among those who were non-employed. Among fathers, part-time employees did not have statistically better health than full-time employees.The findings support somewhat the multiple role attachment hypothesis, rather than the multiple role burden hypothesis. Because employment has great importance for both women's and men's health, the compatibility of work and family roles should be improved. PMID- 29349157 TI - Political fragmentation and widening disparities in African-American and white mortality, 1972-1988. AB - Objective: During the 1970s and 1980s in the U.S., population movement, urban sprawl and urban governance reform led to a proliferation of local, autonomous jurisdictions. Prior literature examines how this creation of local governments, also referred to as political fragmentation, contributes to economic growth and social inequality. We examine the impact of political fragmentation on health equity by testing the hypothesis that the mortality disparity between whites and African-Americans varies positively with political fragmentation. Methods: We retrieved mortality data from the multiple cause-of-death file and calculated total number of local governments per 1000 residents in a county to measure the degree of political fragmentation. We focused on 226 U.S. counties with population size greater than 200,000 and restricted the analysis to four distinct periods with overlapping government and mortality data (1972-73, 1977-78, 1982 83, and 1987-88). We applied generalized estimating equation methods that permit analysis of clustered data over time. Methods also controlled for the age structure of the population, reductions in mortality over time, and confounding by county-level sociodemographic variables. Results: Adjusted coefficients of fragmentation are positive and statistically significant for both whites (coef: 2.60, SE: 0.60, p<0.001) and African-Americans (coef: 5.31, SE: 1.56, p<0.001). The two-fold larger positive coefficient for African-Americans than for whites indicates a greater racial disparity in mortality among more politically fragmented urban counties and/or time periods. Conclusions: From 1972 to 1988, political fragmentation in large urban counties moves positively with the racial/ethnic gap in mortality between whites and African-Americans. We discuss intervening mechanisms through which political fragmentation may disproportionately affect mortality among African-Americans. PMID- 29349158 TI - Financial hardship, mastery and social support: Explaining poor mental health amongst the inadequately employed using data from the HILDA survey. AB - Objective: This study analysed data from the Household Income and Labour Dynamics in Australia (HILDA) Survey to examine the relationship between employment status and mental health, and the mediating effects of financial hardship, mastery and social support. In addition, the study sought to explore the effects of duration of unemployment on mental health. Methods: The primary analysis used three waves of data from the HILDA Survey with 4965 young adult respondents. Longitudinal population-averaged logistic regression models assessed the association of employment status and mental health, including the contribution of mastery, financial hardship and social support in explaining this association between employment groups (unemployed vs. employed; under employed vs. employed). Sensitivity analyses utilised a fixed-effects approach and also considered the full-range of working-age respondents. Regression analysis was used to explore the effect of duration of unemployment on mental health. Results: Respondents' who identified as unemployed or underemployed were at higher risk of poor mental health outcomes when compared to their employed counterparts. This association was ameliorated when accounting for mastery, financial hardship and social support for the unemployed, and was fully mediated for the underemployed. The fixed-effects models showed the transition to unemployment was associated with a decline in mental health and that mastery in particular contributed to that change. The same results were found with a broader age range of respondents. Finally, the relationship between duration of unemployment and mental health was not linear, with mental health showing marked decline across the first 9 weeks of unemployment. Conclusions and implications: Mastery, social support and financial hardship are important factors in understanding the association of poor mental health with both unemployment and underemployment. Furthermore, the results suggest that the most deleterious effects on mental health may occur in the first two months of unemployment before plateauing. In order to prevent deterioration in mental health, these findings suggest intervention should commence immediately following job loss. PMID- 29349159 TI - HIV in Japan: Epidemiologic puzzles and ethnographic explanations. AB - Japan is widely perceived to have a low level of HIV occurrence; however, its HIV epidemics also have been the subject of considerable misunderstanding globally. I used a ground truthing conceptual framework to meet two aims: first, to determine how accurately official surveillance data represented Japan's two largest epidemics (urban Kansai and Tokyo) as understood and experienced on the ground; and second, to identify explanations for why the HIV epidemics were unfolding as officially reported. I used primarily ethnographic methods while drawing upon epidemiology, and compared government surveillance data to observations at community and institutional sites (459 pages of field notes; 175 persons observed), qualitative interviews with stakeholders in local HIV epidemics (n = 32), and document research (n = 116). This revealed seven epidemiologic puzzles involving officially reported trends and conspicuously missing information. Ethnographically grounded explanations are presented for each. These included factors driving the epidemics, which ranged from waning government and public attention to HIV, to gaps in sex education and disruptive leadership changes in public institutions approximately every two years. Factors constraining the epidemics also contributed to explanations. These ranged from subsidized medical treatment for most people living with HIV, to strong partnerships between government and a well-developed, non-governmental sector of HIV interventionists, and protective norms and built environments in the sex industry. Local and regional HIV epidemics were experienced and understood as worse than government reports indicated, and ground-level data often contradicted official knowledge. Results thus call into question epidemiologic trends, including recent stabilization of the national epidemic, and suggest the need for revisions to the surveillance system and strategies that address factors driving and constraining the epidemics. Based upon its utility in the current study, ground truthing has value as a conceptual framework for research and shows promise for future theoretical development. PMID- 29349160 TI - Theoretical basis and explanation for the relationship between area-level social inequalities and population oral health outcomes - A scoping review. AB - This study was conducted to review the evidence on the association between area level social inequalities and population oral health according to type and extent of social theories. A scoping review was conducted of studies, which assessed the association between area-level social inequality measures, and population oral health outcomes including self-rated oral health, number of teeth, dental caries, periodontal disease, tooth loss, oral health-related quality of life (OHRQoL) and dental pain. A search strategy was applied to identify evidence on PubMed, MEDLINE (Ovid), EMBASE, Web of Science, ERIC, Sociological Abstracts, Social Services Abstracts, references of selected studies, and further grey literature. A qualitative content analysis of the selected studies was conducted to identify theories and categorize studies according to their theoretical basis. A total of 2892 studies were identified with 16 included in the review. Seven types of social theories were used on 48 occasions within the selected studies including: psychosocial (n=13), behavioural (n=10), neo-material (n=10), social capital (n=6), social cohesion (n=4), material (n=3) and social support (n=2). Of the selected studies, four explicitly tested social theories as pathways from inequalities to population oral health outcomes, three used a theoretical construct, seven used theories for post-hoc explanation and two did not have any use of theory. In conclusion, psychosocial theories were used most frequently. Although theories were often mentioned, majority of these studies did not test a social theory. PMID- 29349161 TI - Does multilingualism affect the incidence of Alzheimer's disease?: A worldwide analysis by country. AB - It has been suggested that the cognitive requirements associated with bi- and multilingual processing provide a form of mental exercise that, through increases in cognitive reserve and brain fitness, may delay the symptoms of cognitive failure associated with Alzheimer's disease and other forms of dementia. We collected data on a country-by-country basis that might shed light on this suggestion. Using the best available evidence we could find, the somewhat mixed results we obtained provide tentative support for the protective benefits of multilingualism against cognitive decline. But more importantly, this study exposes a critical issue, which is the need for more comprehensive and more appropriate data on the subject. PMID- 29349162 TI - Neighbourhood social and built environment factors and falls in community dwelling canadian older adults: A validation study and exploration of structural confounding. AB - Older persons are vulnerable to the ill effects of their social and built environment due to age-related limitations in mobility and bio-psychological vulnerability. Falls are common in older adults and result from complex interactions between individual, social, and contextual determinants. We addressed two methodological issues of neighbourhood-health and social epidemiological studies in this analysis: (1) validity of measures of neighbourhood contexts, and (2) structural confounding resulting from social sorting mechanisms. Baseline data from International Mobility in Aging Study were used. Samples included community-dwelling Canadians older than 65 living in Kingston (Ontario) and St-Hyacinthe (Quebec). We performed factor analysis and ecometric analysis to assess the validity of measures of neighbourhood social capital, socioeconomic status, and the built environment and stratified tabular analyses to explore structural confounding. The scales all demonstrated good psychometric and ecometric properties. There was an evidence of the existence of structural confounding in this sample of Canadian older adults as some combinations of strata for the three neighbourhood measures had no population. This limits causal inference in studying relationships between neighbourhood factors and falls and should be taken into account in aetiological aging research. PMID- 29349163 TI - Making health information meaningful: Children's health literacy practices. AB - Children's health and wellbeing is high on the research and policy agenda of many nations. There is a wealth of epidemiological research linking childhood circumstances and health practices with adult health. However, echoing a broader picture within child health research where children have typically been viewed as objects rather than subjects of enquiry, we know very little of how, in their everyday lives, children make sense of health-relevant information. This paper reports key findings from a qualitative study exploring how children understand food in everyday life and their ideas about the relationship between food and health. 53 children aged 9-10, attending two socio-economically contrasting schools in Northern England, participated during 2010 and 2011. Data were generated in schools through interviews and debates in small friendship groups and in the home through individual interviews. Data were analysed thematically using cross-sectional, categorical indexing. Moving beyond a focus on what children know the paper mobilises the concept of health literacy (Nutbeam, 2000), explored very little in relation to children, to conceptualise how children actively construct meaning from health information through their own embodied experiences. It draws on insights from the Social Studies of Childhood (James and Prout, 2015), which emphasise children's active participation in their everyday lives as well as New Literacy Studies (Pahl and Rowsell, 2012), which focus on literacy as a social practice. Recognising children as active health literacy practitioners has important implications for policy and practice geared towards improving child health. PMID- 29349164 TI - The 2005 London terror attacks: An investigation of changes in psychological wellbeing and social capital pre- and post-attacks (2003-07)-A UK panel study. AB - The London public transport suicide bombings, which occurred on 7th July 2005, were described as the worst single terrorist atrocity on British soil to date. Past acts of terrorism have been associated with deterioration in population mental health. They may also negatively impact levels of social capital, which is considered a buffer against poor mental health outcomes. By employing panel data from the British Household Panel Survey and following the same individuals (NT=9287) three times over a five-year period (2003, 2005 and 2007), the aim of this longitudinal multilevel study was to investigate: (i) the impact of terrorism on individual-level social capital (generalised trust and social participation) across the UK; and (ii) the buffering effects of social capital on psychological wellbeing (GHQ-12). By comparing 2005 and 2007 covariate values (including the two social capital proxies) against their pre-terror baseline (2003) measurements in two separate multilevel logistic regression models, we examined the immediate and longer-term effects of the 2005 attacks on our GHQ-12 outcome. Compared to baseline, generalised trust dropped from 44% to 36% immediately post-terror attacks in 2005, while local participation increased from 45.8% to 47.5%. Social capital levels started to return to baseline levels by 2007, yet both proxies maintained independent buffering effects against poor GHQ 12 scores in years 2005 and 2007. From this empirical evidence, it seems that though generalised trust levels are negatively affected by acts of terrorism, the accompanying increase in local active participation may aid in the re establishment of societal norms and beliefs in later years. Decision makers should be aware that such atrocities may negatively impact on populations' generalised trust in the shorter-term. To safeguard against losing this buffer against poor mental health outcomes, local active participation should be encouraged. PMID- 29349165 TI - Trajectories of informal care and health. AB - The evidence of the impact of informal care provision on the health of carers presents a complex and contested picture, depending on the characteristics of the care studied, including its duration, which has been relatively short in previous research (up to 4 years). Drawing on data from the Office for National Statistics Longitudinal Study, a 1% sample of linked Census records for respondents in England and Wales (N=270,054), this paper contributes original insights on the impact of care provision on the carer's health ten years later. The paper explores differentials in self-reported health in 2011 between individuals according to their caring status at 2001 and 2011, and controlling for a range of demographic and socio-economic characteristics. The results show that individuals providing informal care in 2011 (regardless of carer status in 2001) exhibit lower odds of poor health in 2011 than those who did not provide care in both 2001 and 2011. Taking the intensity of care into account, 'heavy' carers in 2001 (i.e. caring for more than 20 h per week) who were not caring in 2011 show a higher likelihood of reporting poor health than non-carers, while those who were 'heavy' carers in both 2001 and 2011 are around one-third less likely to report poor health at 2011 compared to non-carers (2001 and 2011). These findings provide new insights in relation to repeat caring and its association with the carer's health status, further contributing to our understanding of the complex relationship between informal care provision and the carer's health. PMID- 29349166 TI - The impacts of public mammography screening on the relationship between socioeconomic status and cancer stage. AB - This study aimed to investigate the relationship between socioeconomic inequality and mortality following the introduction of a public mammography screening program in Norway by exploring the role of change in stage distribution as the mechanism for differences before and after the introduction of the screening program. Attained education level was used as a measure of socioeconomic status in this population-based study. All women aged 50-69 years diagnosed with breast cancer from 1999-2008 and with follow-up data until the end of 2009 were included. The primary endpoint was all-cause mortality. The results of a mediation analysis indicated that the introduction of screening led to stage distribution related reductions of -5.6 (95% confidence interval = -6.7 to -4.5), -2.5 (-3.0 to -2.1), and -1.4 (-1.9 to -0.9) fewer deaths per 1000 women for with a primary school education, secondary school education, and university education, respectively. The study showed that stage distribution explained -5 (-5.9 to 4.1) fewer deaths among women with a university education and -2.4 (-2.9 to -2.0) fewer deaths among women with a secondary school education before program implementation when compared to the group with a primary school education. There were significant reductions in mortality due to stage distribution after program implementation with differences relative to women with primary school of -1.8 ( 2.2 to -1.4) and -0.7 (-0.9 to -0.5) fewer deaths in favor of women with university education and secondary school, respectively. The results indicate reduced importance of cancer stage as a reason for differences in mortality by socioeconomic status after the introduction of a public mammography program. PMID- 29349167 TI - The weaker sex? Vulnerable men and women's resilience to socio-economic disadvantage. AB - Sex differences in mortality vary over time and place as a function of social, health, and medical circumstances. The magnitude of these variations, and their response to large socioeconomic changes, suggest that biological differences cannot fully account for sex differences in survival. Drawing on a wide swath of mortality data across countries and over time, we develop a set of empiric observations with which any theory about excess male mortality and its correlates will have to contend. We show that as societies develop, M/F survival first declines and then increases, a "sex difference in mortality transition" embedded within the demographic and epidemiologic transitions. After the onset of this transition, cross-sectional variation in excess male mortality exhibits a consistent pattern of greater female resilience to mortality under socio-economic adversity. The causal mechanisms underlying these associations merit further research. PMID- 29349168 TI - Associations between physical health and depressive symptoms in Chinese older adults: Do neighborhood resources matter? AB - This is one of the first studies to examine the buffering effect of neighborhood resources, specifically leisure amenities and voluntary associations, on the relationship between poor physical health and depressive symptoms among older persons in China. Using data from the 2011 baseline survey of the China Health and Retirement Longitudinal Study, the analytical sample included 4715 older adults aged 60 and over nested in 446 neighborhoods. Two-level linear regression analyses were conducted in the urban (n=1225) and rural (n=3490) samples, respectively. We found that leisure amenities significantly reduced the effect of ADL limitations on depressive symptoms in urban older adults, and alleviated the effect of chronic conditions on depressive symptoms in rural older Chinese. PMID- 29349169 TI - Differences in neighborhood social cohesion and aerobic physical activity by Latino subgroup. AB - Previous research has examined the role of neighborhood social cohesion in physical activity outcomes; however, less is known about this relationship across Latino subgroups. The purpose of our study was to examine the association between neighborhood social cohesion and aerobic leisure-time physical activity (LTPA) among Latino adults and to determine whether these associations differ by Latino subgroup. We used cross-sectional 2013-2014 National Health Interview Survey (NHIS) data on Latinos originating from 5 countries/regions (i.e., Latinos of Puerto Rican, Mexican/Mexican-American, Cuban/Cuban-American, Dominican and Central or South American origin) aged >=18 years (n=11,126). Multivariable logistic regression models were used to estimate associations between self reported neighborhood social cohesion and meeting aerobic LTPA guidelines. Models were adjusted for age, sex, education, and acculturation. We also investigated whether associations varied by Latino subgroup. In adjusted models for all Latino adults, compared with those reporting low social cohesion, individuals who reported high social cohesion (Odds Ratio [OR]: 1.33; 95% Confidence Interval [CI]: 1.17-1.52) were significantly more likely to meet the aerobic physical activity guideline. When stratified by Latino subgroups, among Mexican/Mexicans Americans (OR: 1.39; 95% CI: 1.16, 1.66) and Cuban/Cuban Americans (OR: 1.73; 95% CI: 1.00, 2.97) high social cohesion was associated with meeting the aerobic activity guideline. Among Dominicans, those who reported medium social cohesion (OR: 0.52, 95% CI: 0.29, 0.93) were less likely to meet the aerobic activity guideline. When examining aerobic physical activity outcomes in the Latino population, the role of neighborhood social cohesion and the variability among Latino subgroups should be considered. PMID- 29349170 TI - The relationship between raising a child with a disability and the mental health of mothers compared to raising a child without disability in japan. AB - Objective: Previous studies conducted in Japan targeted only mothers who cared for children with disabilities, and lacked reference subjects, such as mothers of children without disabilities. The aim of this study was to examine the association between raising one or two children with a disability and maternal psychological distress compared to mothers of children without a disability, and to assess differences among partnered mothers living with grandparent(s), partnered mothers without grandparent(s), and single mothers. Methods: This study utilized data from the Comprehensive Survey of Living Conditions (CSLC) in 2010. We merged the data of the children (aged six and over), mothers, and fathers. This study obtained 33,739 study subjects as a triad of a child (33,110 children without disabilities and 629 children with disabilities), mother, and father. The Japanese version of Kessler 6 (K6) was used to assess the psychological distress of mothers. Multivariate logistic regression was performed to assess the independent association of a child with a disability on maternal psychological distress after controlling for the basic characteristics of the children, mothers, and households. Results: This study reported that raising one or two children with disabilities was significantly related to maternal psychological distress (odds ratio: 1.72 for one child, 2.85 for two children) compared to mothers of children without disability. After stratifying the analyses by family structure, significant associations remained among mothers in two-parent families but not for mothers in three-generation families and single mothers due to a small number of children with disabilities in these families. Conclusions: This study reported the significant association between raising a child with a disability and maternal psychological distress in comparison to mothers of children without disabilities. Attention should be paid to not only single mothers, but also partnered mothers in two-parent families who have a child with a disability. It is important for health professionals to focus on the mental health of every mother of a child with a disability and to assess their needs for psychological support. PMID- 29349171 TI - Health returns to education by family socioeconomic origins, 1980-2008: Testing the importance of gender, cohort, and age. AB - Recent studies find that health returns to education are elevated among those who come from disadvantaged families. These findings suggest that education may be a health resource that compensates or "substitutes" for lower parental socioeconomic status. Alternatively, some studies find support for a cumulative (dis)advantage perspective, such that educational health returns are higher among those who already were advantaged, widening initial health (dis)advantages across the life course. However, it remains unclear whether these findings are dependent on gender or cohort, and this is a fundamental oversight given marked differences between men and women in educational and health inequalities across the twentieth century. Drawing on national US data (1980-2002 General Social Survey with 2008 National Death Index Link), I indeed find that the presence or strength of resource substitution or cumulative (dis)advantage depends upon health measure as well as gender and cohort. For self-rated health, cumulative (dis)advantage explains educational health disparities, but among men only. Cumulative (dis)advantage in avoiding fair or poor health is partly explained by cohort and age variation in health returns to education, and cumulative (dis)advantage in excellent health is more robust in earlier cohorts and at older ages. For mortality, resource substitution is instead supported, but for women only. Among those from disadvantaged families, educational mortality buffering increases with cohort but diminishes with age. Taken together, these findings confirm prior research showing that adult health inequalities linked to education depend on family background, and extend this work by demonstrating that the nature and extent of these dynamics differ considerably depending on the health outcome being assessed and on an individual's historical context, life course stage, and gender. PMID- 29349172 TI - The impact of work-related physical assaults on mental health among Japanese employees with different socioeconomic status: The Japan Work Stress and Health Cohort Study (JSTRESS). AB - Background: Work-related physical assaults or violence has severely impacted on the safety of the work environment and employees' mental health. The aim of the present study was to investigate the prevalence of physical assaults, the effect of socioeconomic status (SES) on it and depression associated with it in employees working at large companies. Methods: A total of 22,770 Japanese employees responded to a self-administered questionnaire including SES (educational status and occupational status), violence victimization, worksite social support and depression (response rate, 85%). The 12-month prevalence of physical assaults and depression was examined using a single question and the Center for Epidemiologic Studies Depression scale, respectively. Results: The prevalence of physical assaults was 1.8% both in males and females. Although the risk of exposure to physical assaults was 2-3 times higher in the blue-collar group than in the manager group, the association of exposure to physical assaults with depression was stronger in the manager and white-collar worker group (Prevalence ratio [PR]=2.1 in males; 1.8 in females) than in the blue-collar worker group (PR=1.7 in males; 1.5 in females) after adjusting demographic and occupational covariates. A similar pattern was observed for education in males; the association was stronger than in the lower education group (PR=2.1 and 1.8). Conclusions: Low SES is a risk factor of exposure to physical assaults, however, the association of physical assaults with depression was significantly greater among company employees of higher SES than those of lower SES. PMID- 29349173 TI - The impact of self-reported health and register-based prescription medicine purchases on re-employment chances: A prospective study. AB - In this paper, we investigate the influence of self-reported health and register based prescription medicine purchases on re-employment chances, and whether these health indicators measure similar aspects of health in this analysis. Data came from a 2006 Danish unemployment survey among a random sample of unemployed individuals enriched with register data (2006-2008, N=1806). The survey participants all received unemployment benefits from the welfare system and had been unemployed for more than 20 weeks at the time of the interview in 2006. We combined these data with longitudinal register data on individual prescription medicine purchases for somatic illnesses and prescription medicine purchases for mental illnesses, information on re-employment and various socio-demographic variables. We conducted binary logistic regression analyses to investigate the impact of self-reported health and prescription medicine purchases measured in 2006 on re-employment chances in 2007 and 2008. Our analyses show that unemployed workers with poor self-reported health and workers who had prescription medicine purchases for mental illnesses were less likely to be re-employed in 2007 and 2008. Furthermore, the impact of both prescription medicine purchases for somatic illnesses and for mental illnesses increased when adding self-reported health to the model although prescription purchases for somatic illnesses became statistically insignificant. The impact of prescription medicine purchases for somatic illnesses was mediated by self-reported health, whilst prescription medicine purchases for mental illnesses was only partly mediated. Finally, SRH seemed a much stronger prediction than prescription medicines. From these results, we propose, when possible, the inclusion of both an indicator of self reported health and an indicator of mental health in studies on re-employment. PMID- 29349174 TI - Self-identified race, socially assigned skin tone, and adult physiological dysregulation: Assessing multiple dimensions of "race" in health disparities research. AB - Despite a general acceptance of "race" as a social, rather than biological construct in the social sciences, racial health disparities research has given less consideration to the dimensions of race that may be most important for shaping persistent disparities in adult physical health status. In this study, we incorporate the social constructionist view that race is multidimensional to evaluate the health significance of two measures of race, racial self identification and the socially perceived skin tone of black Americans, in a sample of black and white adults in the Nashville Stress and Health Study (N=1186). First, we use the approach most common in disparities research comparing group differences in an outcome-to consider self-identified racial differences in allostatic load (AL), a cumulative biological indicator of physical dysregulation. Second, we examine intragroup variations in AL among blacks by skin tone (i.e. light, brown, or dark skin). Third, we assess whether the magnitude of black-white disparities are equal across black skin tone subgroups. Consistent with prior research, we find significantly higher rates of dysregulation among blacks. However, our results also show that racial differences in AL vary by blacks' skin tone; AL disparities are largest between whites and dark-skinned blacks and smallest between whites and light-skinned blacks. This study highlights the importance of blacks' skin tone as a marker of socially-assigned race for shaping intragroup and intergroup variations in adult physiological dysregulation. These results demonstrate the importance of assessing multiple dimensions of race in disparities research, as this approach may better capture the various mechanisms by which "race" continues to shape health. PMID- 29349175 TI - The development of a bridging social capital questionnaire for use in population health research. AB - Bridging social capital is defined as the connections between individuals who are dissimilar with respect to socioeconomic and other characteristics. There is an important gap in the literature related to its measurement. We describe the development and validation of a questionnaire to measure bridging social capital. We focused the development of the questionnaire to be suitable for use in Latino immigrant populations in the U.S. The structure of the questionnaire comprised the following: Socialization in the job place (5 items); Membership in community activities (16 items); Participation in community activities (5 items); Contact with similar/different people (7 items); Assistance (17 items); Trust of institutions, corporations and other people(14 items); and Trust of intimate people (3 items). First, we used focus groups (N=17 participants) to establish content validity with an inductive thematic analysis to identify themes and subthemes. Changes were made to the questionnaire based on difficulty, redundancy, length and semantic equivalence. Second, we analyzed the questionnaire's psychometric properties (N=138). We tested internal consistency with Cronbach alpha and construct validity with a Confirmatory Factor Analysis (CFA) for each sub-scale to test theoretical unity; discriminant validity to observe differences between participants from high and low SES backgrounds and different language; and content validity with an independent expert panel. Cronbach alphas ranged from 0.80 (Assistance) to 0.92 (Trust). CFA results indicated that CFI and TLI were higher than 0.90 in almost all the scales, with high factor loadings. The Wilcoxon tests indicated that there were statistically significant mean differences between SES and language groups (p<0.00). The independent expert panel determined that the questionnaire had good content validity. This is the first demonstration of a psychometrically validated questionnaire to measure bridging social capital in an immigrant population in the United States. Our questionnaire may be suitable for further refinement and adaptation to other immigrant groups in different countries. PMID- 29349176 TI - Do age, psychosocial, and health characteristics alter the weak and strong tie composition of network diversity and core network size in urban adults? AB - Social capital and social support are two key constructs in the study of social networks and health. Despite their importance, little research has sought to examine the characteristics of those social ties by which individuals access social capital and support resources. Network diversity - a key structural feature in accessing social capital - refers to a person's broad but generally weak and heterogeneous social ties; core network size - a key structural feature in accessing social support - refers to the close, strong ties in personal networks. Our study examines whether the tie strength composing network diversity and core network size varies according to age-, psychosocial-, or health-related characteristics. Data came from the Montreal Neighbourhood Networks and Healthy Aging (MoNNET-HA) study, a representative sample of 2707 Montreal, Canada adults. Position and name generators were used to collect data on network diversity and core networks, and whether access to social resources was through kin, friends, or acquaintances. Multilevel negative binomial regression was used to account for the counts of different tie strengths nested within individuals and tracts. Network diversity and core network size both declined with older age groups, with those declines being more noticeable in not having ties at all or fewer ties with friends. Psychosocial and health factors altered the relative contribution of kin, friends and acquaintances to network diversity and core network size in similar patterns. Understanding the tie composition of network diversity and core network size can contribute to our knowledge of the social mechanisms linking social capital and support to health outcomes. PMID- 29349177 TI - Contextual generalized trust and immunization against the 2009 A(H1N1) pandemic in the American states: A multilevel approach. AB - The aim of the study was to investigate the association between contextual generalized trust and individual-level 2009 A(H1N1) pandemic immunization acceptance. A second aim was to investigate whether knowledge about the A(H1N1) pandemic mediated the association between contextual generalized trust and A(H1N1) immunization acceptance. Data from the National 2009 H1N1 Flu Survey was used. To capture contextual generalized trust, data comes from an aggregation of surveys measuring generalized trust in the American states. To investigate the association between contextual generalized trust and immunization acceptance, while taking potential individual-level confounders into account, multilevel logistic regression was used. The investigation showed contextual generalized trust to be significantly associated with immunization acceptance. However, controlling for knowledge about the A(H1N1) pandemic did not substantially affect the association between contextual generalized trust and immunization acceptance. In conclusion, contextual state-level generalized trust was associated with A(H1N1) immunization, but knowledge about A(H1N1) was not mediating this association. PMID- 29349178 TI - Trends in socioeconomic inequalities in self-rated health, smoking, and physical activity of Japanese adults from 2000 to 2010. AB - Health disparities in Japan are attracting increasing attention. Temporal trends in health disparities should be continuously monitored using multiple indices of socioeconomic status (SES) and health-related outcomes. We explored changes in socioeconomic differences in the health of Japanese adults during 2000-2010. The data was taken from the Japanese General Social Surveys, the cross-sectional surveys for nationally representative samples of Japanese adults. We used 14,193 samples (individuals of 20-64 years of age) in our analysis. We estimated age adjusted prevalence ratios of the lowest SES group in comparison with the highest SES group using Poisson regression models with robust error variance. Relative index of inequality (RII) and slope index of inequality (SII) were also calculated. We examined the changes in the association between health-related outcomes (self-rated health (SRH), smoking, and physical activity) and SES indices (income, education, occupation, and subjective social class identification). The results showed temporally expanding trends for the associations of current smoking with SES, especially among women, in both relative and absolute measures. In contrast, no expanding trends were seen for SRH and physical activity. Although the smoking rates declined through the first decade of the 21st century, the socioeconomic disparities in smoking prevalence among Japanese adults expanded, especially among women. Researchers and policymakers should continuously monitor the trends that may cause future disparities in smoking-related morbidity and mortality. PMID- 29349179 TI - Do flexicurity policies protect workers from the adverse health consequences of temporary employment? A cross-national comparative analysis. AB - Flexicurity policies comprise a relatively novel approach to the regulation of work and welfare that aims to combine labour market flexibility with social security. Advocates of this approach argue that, by striking the right balance between flexibility and security, flexicurity policies allow firms to take advantage of loose contractual arrangements in an increasingly competitive economic environment while simultaneously protecting workers from the adverse health and social consequences of flexible forms of employment. In this study, we use multilevel Poisson regression models to test the theoretical claim of the flexicurity approach using data for 23 countries across three waves of the European Social Survey. We construct an institutional typology of labour market regulation and social security to evaluate whether inequalities in self-reported health and limiting longstanding illness between temporary workers and their permanent counterparts are smaller in countries that most closely approximate the ideal type described by advocates of the flexicurity approach. Our results indicate that, while the association between temporary employment and health varies across countries, institutional configurations of labour market regulation and social security do not provide a meaningful explanation for this cross national variation. Contrary to the expectations of the flexicurity hypothesis, our data do not indicate that employment-related inequalities are smaller in countries that approximate the flexicurity approach. We discuss potential explanations for these findings and conclude that there remains a relative lack of evidence in support of the theoretical claims of the flexicurity approach. PMID- 29349180 TI - Neighborhood racial composition and poverty in association with pre-pregnancy weight and gestational weight gain. AB - Background: Studies of neighborhood racial composition or neighborhood poverty in association with pregnancy-related weight are limited. Prior studies of neighborhood racial density and poverty has been in association with adverse birth outcomes and suggest that neighborhoods with high rates of poverty and racial composition of black residents are typically segregated and systematically isolated from opportunities and resources. These neighborhood factors may help explain the racial disparities in pre-pregnancy weight and inadequate weight gain. This study examined whether neighborhood racial composition and neighborhood poverty was associated with weight before pregnancy and weight gain during pregnancy and if this association differed by race. Methods: We used vital birth records of singleton births of 73,061 non-Hispanic black and white women in Allegheny County, PA (2003-2010). Maternal race and ethnicity, pre-pregnancy body mass-index (BMI), gestational weight gain and other individual-level characteristics were derived from vital birth record data, and measures of neighborhood racial composition (percentage of black residents in the neighborhood) and poverty (percentage of households in the neighborhood below the federal poverty) were derived using US Census data. Multilevel log binomial regression models were performed to estimate neighborhood racial composition and poverty in association with pre-pregnancy weight (i.e., overweight/obese) and gestational weight gain (i.e., inadequate and excessive). Results: Black women as compared to white women were more likely to be overweight/obese before pregnancy and to have inadequate gestational weight gain (53.6% vs. 38.8%; 22.5% vs. 14.75 respectively). Black women living in predominately black neighborhoods were slightly more likely to be obese prior to pregnancy compared to black women living in predominately white neighborhoods (PR 1.10; 95% CI: 1.03, 1.16). Black and white women living in high poverty areas compared with women living in lower poverty areas were more likely to be obese prior to pregnancy; while only white women living in high poverty areas compared to low poverty areas were more likely gain an inadequate amount of weight during pregnancy. Conclusions: Neighborhood racial composition and poverty may be important in understanding racial differences in weight among childbearing women. PMID- 29349181 TI - Indicators of subjective social status: Differential associations across race and sex. AB - Background: Subjective social status (SSS), or perception of rank on the social hierarchy, is an important indicator of various health outcomes. However, the psychosocial influences on this construct are unclear, and how these influences vary across different sociodemographic groups is poorly understood. Methods: Participants were 2077 African-American and Whites (M age=47.85; 57% female; 58% African American, and 58% above poverty) from the Healthy Aging in Neighborhoods of Diversity across the Life Span (HANDLS) study. Multiple regression analyses examined (1) hypothesized psychosocial indicators of SSS and (2) the moderating effect of race and sex on the variables associated with SSS. Results: In addition to the traditional measures of SES (i.e. income, employment, and education), psychosocial variables (i.e. depressive symptomatology, neighborhood satisfaction, and self-rated health) were significantly associated with SSS. However, some of these indicators varied with respect to race and sex. Three significant interactions were found: sex by employment, race by employment, and race by education, wherein objective measures of SES were more associated with SSS for Whites and men compared to African Americans and women. Conclusion: Psychosocial measures may influence individuals' perceptions of themselves on the social hierarchy. Additionally, SSS may vary by demographic group. When considering the impact of SSS on health, it is important to consider the unique interpretations that various demographic groups have when perceiving themselves on the social hierarchy. PMID- 29349182 TI - Life-course social and economic circumstances, gender, and resilience in older adults: The longitudinal International Mobility in Aging Study (IMIAS). AB - Although early socioeconomic adversity is associated with poorer function and health in adulthood, those who are able to adapt positively to such risks and threats develop a resilience that may ameliorate harm. Predictors of resilience have been examined in children, however exploring the relationship between life course events, lived environments and current resilience among older adults across countries is novel. We specifically studied how childhood social and/or economic adversity and current socioeconomic resources were associated with resilience in 2000 community dwelling older men and women in Canada, Colombia, Brazil and Albania. The longitudinal International Mobility in Aging Study (IMIAS) collected information in 2012 and 2014 on childhood adversity, current income sufficiency social support and social engagement, and resilience (Wagnild Resilience Scale RS-14). Resilience levels were moderately high, and similar among women and men. Early social adversity predicted later resilience for some, with women but not men adapting positively. In contrast there was no bouncing back from early economic adversity. Current social engagement aligned with resilience (women only) as did social support from children (for women) and friends (for men). Partner support was of no advantage to either. Among men economic circumstances were stronger correlates of resilience while for women social circumstances were primary. The impact of site on resilience suggested that cultural norms and values have an independent effect on resilience of their populations, with strong and positive social ties more typical of Latin America than Canada appearing to offset lower absolute incomes. These findings are of importance because resilience is dynamic, can be fostered across the lifespan and is generally associated with greater health. Understanding which social assets and resources can be reinforced to build individual resilience offers a means for decreasing the harms of social and economic adversity. PMID- 29349183 TI - The association between social cohesion and physical activity in canada: A multilevel analysis. AB - Although previous research has shown that social cohesion may promote physical activity, social cohesion at the individual level was not always differentiated from social cohesion at the community level, and studies were often limited to specific population subgroups or geographical areas. We addressed the above limitations through the use of a multilevel modelling approach and nationally representative data from the 2009-2014 Canadian Community Health Survey. Physical activity level was operationalized as average daily energy expenditure; social cohesion was assessed by self-rated sense of belonging to the local community; and communities were represented by Canada's Forward Sortation Areas. The sample included 245,150 respondents from 1570 communities. Geographical location was found to explain a significant proportion (4.1%) of the overall variance in physical activity level. After adjusting for age, sex, household income, education and urban-rural status, both individual- and community-level social cohesion were found to be positively associated with physical activity (p<0.001 for both). Thus, efforts to promote social cohesion and integration within communities may also promote physical activity and overall health. PMID- 29349184 TI - Using photovoice methods to explore older people's perceptions of respect and social inclusion in cities: Opportunities, challenges and solutions. AB - Urbanisation and population ageing have contributed to recognise cities as important settings for healthy ageing. This paper considers opportunities, challenges and solutions of using photovoice methods for exploring how individuals perceive their cities and the contribution this makes to their health. It focuses on one aspect of older people's experiences - respect and social inclusion, in the context of a community-based participatory research. Drawing on selected findings (participants' photographs, associated quotes and researchers' field notes), we provide an assessment of the suitability of photovoice methodology for the intended purpose. Four groups of older people (n=26; aged 60 years or more) from four contrasting geographical areas in Liverpool, UK, were recruited purposively. Participants photographed perceived positive and negative aspects of respect and social inclusion in the city, reflecting on the meanings of the photographs in individual (n=23) and group interviews (n=9). Thematic and content analysis was conducted using NVivo 10 software. The work reported here provides insights into how participants engage with the photovoice process; factors preventing taking photos of interest; and how photographs complement interviews and focus groups. The findings demonstrate that photovoice both facilitated the dissemination of personalised relevant knowledge, and encouraged critical dialogue between participants, and city stakeholders. Reported difficulties included photography of negative and social concepts, and anxiety when taking photographs due to (i) expectations of what is a 'proper' photograph, and (ii) the need to obtain consent from subjects. With preparation, training, and discussion of participants' ideas not expressed through photographs, photovoice was well-suited to this topic, providing insights complementing other research methods. Through analysing the application of photovoice for exploring perceptions of respect and social inclusion in cities, our paper has identified potential issues and provides important recommendations for researchers on how photovoice methodology can be strengthened in exploring conditions for better health in the urban environment. PMID- 29349185 TI - Differences in stroke and ischemic heart disease mortality by occupation and industry among Japanese working-aged men. AB - Occupation- and industry-based risks for stroke and ischemic heart disease may vary among Japanese working-aged men. We examined the differences in mortality rates between stroke and ischemic heart disease by occupation and industry among employed Japanese men aged 25-59 years. In 2010, we obtained occupation- and industry-specific vital statistics data from the Japanese Ministry of Health, Labour, and Welfare dataset. We analyzed data for Japanese men who were aged 25 59 years in 2010, grouped in 5-year age intervals. We estimated the mortality rates of stroke and ischemic heart disease in each age group for occupation and industry categories as defined in the national census. We did not have detailed individual-level variables. We used the number of employees in 2010 as the denominator and the number of events as the numerator, assuming a Poisson distribution. We conducted separate regression models to estimate the incident relative risk for stroke and ischemic heart disease for each category compared with the reference categories "sales" (occupation) and "wholesale and retail" (industry). When compared with the reference groups, we found that occupations and industries with a relatively higher risk of stroke and ischemic heart disease were: service, administrative and managerial, agriculture and fisheries, construction and mining, electricity and gas, transport, and professional and engineering. This suggests there are occupation- and industry-based mortality risk differences of stroke and ischemic heart disease for Japanese working-aged men. These differences in risk might be explained to factors associated with specific occupations or industries, such as lifestyles or work styles, which should be explored in further research. The mortality risk differences of stroke and ischemic heart disease shown in the present study may reflect an excessive risk of Karoshi (death from overwork). PMID- 29349186 TI - The shape of the association between income and mortality in old age: A longitudinal Swedish national register study. AB - This study used data on the total population to examine the longitudinal association between midlife income and mortality and late-life income and mortality in an aging Swedish cohort. We specifically examined the shape of the associations between income and mortality with focus on where in the income distribution that higher incomes began to provide diminishing returns. The study is based on a total Swedish population cohort between the ages of 50 and 60 years in 1990 (n=801,017) followed in registers for up to 19 years. We measured equivalent disposable household income in 1990 and 2005 and mortality between 2006 and 2009. Cox proportional hazard models with penalized splines (P-spline) enabled us to examine for non-linearity in the relationship between income and mortality. The results showed a clear non-linear association. The shape of the association between midlife (ages 50-60) income and mortality was curvilinear; returns diminished as income increased. The shape of the association between late life (ages 65-75) income and mortality was also curvilinear; returns diminished as income increased. The association between late-life income and mortality remained after controlling for midlife income. In summary, the results indicated that a non-linear association between income and mortality is maintained into old age, in which higher incomes give diminishing returns. PMID- 29349187 TI - An agent-based simulation of persistent inequalities in health behavior: Understanding the interdependent roles of segregation, clustering, and social influence. AB - Health inequalities are conspicuously persistent through time and often durable even in spite of interventions. In this study, I use agent-based simulation models (ABMs) to understand how the complex interrelationships between residential segregation, social network formation, group-level preferences, and social influence may contribute to this persistence. I use a more-stylized ABM, Bubblegum Village (BV), to understand how initial inequalities in bubblegum chewing behaviors either endure, increase, or decrease over time given group level differences in preferences, neighborhood-level barriers or facilitators of bubblegum chewing (e.g., access to bubblegum shops), and agents' preferences for segregation, homophily, and clustering (i.e., the 'tightness' of social networks). I further use BV to understand whether segregation and social network characteristics impact whether the effects of a bubblegum-reduction intervention that is very effective in the short term are durable over time, as well as to identify intervention strategies to reduce attenuation of the intervention effects. In addition to BV, I also present results from an ABM based on the distribution and social characteristics of the population in Philadelphia, PA. This model explores similar questions to BV, but examines racial/ethnic inequalities in soda consumption based on agents' social characteristics and baseline soda consumption probabilities informed by the 2007-2010 National Health and Nutrition Examination Survey. Collectively, the models suggest that residential segregation is a fundamental process for the production and persistence of health inequalities. The other major conclusion of the study is that, for behaviors that are subject to social influence and that cluster within social groups, interventions that are randomly-targeted to individuals with 'bad' behaviors will likely experience a large degree of recidivism to pre-intervention behaviors. In contrast, interventions that target multiple members of the same network, as well as multilevel interventions that include a neighborhood-level component, can reduce recidivism. PMID- 29349188 TI - Dietary quality in children and the role of the local food environment. AB - Diet is a modifiable contributor to many chronic diseases including childhood obesity. The local food environment may influence children's diet but this area of research is understudied. This study explores if distance to and the number of supermarkets and convenience stores in the local area around households are associated with dietary quality in nine year olds whilst controlling for household level socio-economic factors. This is a secondary analysis of Wave 1 (2007/2008) of the Growing Up in Ireland (GUI) Child Cohort Study, a sample of 8568 nine year olds from the Republic of Ireland. Dietary intake was assessed using a short, 20-item parent reported food frequency questionnaire and was used to create a dietary quality score (DQS) whereby a higher score indicated a higher diet quality. Socio-economic status was measured using household class, household income, and maternal education. Food availability was measured as road network distance to and the number of supermarkets and convenience stores around households. Separate fixed effects regression models assessed the association between local area food availability and dietary quality, stratified by sex. The DQS ranged from -5 to 25 (mean 9.4, SD 4.2). Mean DQS was higher in those who lived furthest (distance in quintiles) from their nearest supermarket (p<0.001), and in those who lived furthest from their nearest convenience store (p<0.001). After controlling for socio-economic characteristics of the household, there was insufficient evidence to suggest that distance to the nearest supermarket or convenience store was associated with dietary quality in girls or boys. The number of supermarkets or convenience stores within 1000 m of the household was not associated with dietary quality. Food availability had a limited effect on dietary quality in this study. Issues associated with conceptualising and measuring the food environment may explain the findings of the current study. PMID- 29349189 TI - Does employment security modify the effect of housing affordability on mental health? AB - This paper uses longitudinal data to examine the interrelationship between two central social determinants of mental health - employment security and housing affordability. Data from ten annual waves of the longitudinal Household, Income and Labour Dynamics in Australia (HILDA) survey (which commenced in 2000/1 and is ongoing) were analysed using fixed-effects longitudinal linear regression. Change in the SF-36 Mental Component Summary (MCS) score of working age individuals (25 64 years) (51,885 observations of 10,776 people), associated with changes in housing affordability was examined. Models were adjusted for income, age, survey year, experience of serious injury/illness and separation/divorce. We tested for an additive interaction between the security of a household's employment arrangements and housing affordability. People in insecurely employed households appear more vulnerable than people in securely employed households to negative mental health effects of housing becoming unaffordable. In adjusted models, people in insecurely employed households whose housing became unaffordable experienced a decline in mental health (B=-1.06, 95% CI -1.75 to -0.38) while people in securely employed households experienced no difference on average. To progress our understanding of the Social Determinants of Health this analysis provides evidence of the need to bridge the (largely artificial) separation of social determinants, and understand how they are related. PMID- 29349190 TI - Barriers to uptake of antenatal maternal screening tests in Senegal. AB - Background: Evidence exists that selective antenatal maternal screening tests contribute to the reduction of maternal morbidity and mortality. However, data are lacking on coverage with the complete set of recommended tests. The study aimed to identify barriers to uptake of the complete set of tests recommended by the Ministry of Health in Senegal. Methods: Data were collected in communities, antenatal care (ANC) clinics and the laboratories of 11 public health care facilities across Senegal. Mixed-methods included ethnography (observations and informal conversations), in-depth interviews and workshops at the health facilities; structured interviews with 283 women receiving antenatal tests ("women in the lab"); in-depth interviews with 81 women in communities who were pregnant or had recently delivered ("community women"). Results: Only 13% of community women and 22% of women in the lab had received the complete set of tests. For various social, financial and antenatal care-related reasons 38% of community women who visited antenatal care facilities did not access a laboratory. The lowest test uptake was in women receiving antenatal care at health posts. Barriers at the laboratory level were the cost of the test, stock outs of reagents, and broken equipment. Midwives were the main gatekeepers of the laboratory, not requesting (all) tests because of assumptions about women's financial problems and reliance on clinical symptoms. Conclusion: In Senegal, recommended antenatal maternal screening tests are substantially underutilized. Efforts to increase test uptake should include accessible testing guidelines, reducing the cost of tests, raising awareness about the reasons for tests, and making the complete test set in point-of-care format accessible in peripheral health posts. National and international antenatal care policies and programs should facilitate access to maternal screening tests as a contribution to reducing maternal and infant morbidity and mortality. PMID- 29349191 TI - Trends in psychological distress and alcoholism after The Great East Japan Earthquake of 2011. AB - Aims: Many studies have shown that natural disasters affect mental health; however, longitudinal data on post-disaster mental health problems are scarce. The aims of our study were to investigate the trend in psychological distress and alcoholism after The Great East Japan Earthquake and tsunami in north eastern Japan, in March 2011. Methods: A longitudinal study was conducted using annual health check data for the general population, in the city of Higashi-Matsushima, which was affected by the high impact of tsunami. In 2012 and 2013, the Kessler Psychological Distress Scale and the CAGE questionnaire (for screening for alcoholism) were used to assess psychological distress and prevalence of alcoholism. Results: Of 11,855 total eligible residents, 2192 received the annual check in 2012 and 2013. The prevalence of mental illness and the mean score of alcoholism tendency increased during the follow-up period. The majority of respondents (43.8%) with baseline serious mental illness (SMI) continued to have SMI at follow-up; only 16.7% reported recovering. Older age, female sex, and severity of home damage predicted higher psychological distress, while male sex was a risk factor for alcoholism at follow-up. Conclusions: Psychological distress deteriorated 2 years after the huge natural disaster, compared with 1 year after the disaster. Long-term mental health care is needed for those affected by natural disasters, particularly those who have suffered loss. PMID- 29349192 TI - Changing medical relationships after the ACA: Transforming perspectives for population health. AB - American health care has undergone significant organizational change in recent decades. But what is the state of core medical relationships in the wake of these changes? Throughout ACA-era health care reform, the doctor-patient relationship was targeted as a particularly important focus for improving communication and health outcomes. Recent developments however have shifted the focus from individual-level outcomes to the wellbeing of populations. This, we argue, requires a fundamental rethinking of health care reform as an opportunity to renegotiate relationships. For example, the move to population medicine requires that the very concept of a patient be resituated and the scope of relevant relationships expanded. Medical relationships in this era of health care are likely to include partnerships between various types of clinicians and the communities in which patients reside, as well as a host of new actors, from social workers and navigators to scribes and community health workers. To address the upstream determinants of population health, providers must be increasingly willing and trained to collaborate with community stakeholders to address both medical and non-medical issues. These community-based partnerships are critical to providing health care that is both relevant and appropriate for addressing problems, and sustainable. Approaching health care reform, and the focus on population health, as a fundamental reworking of relationships provides scholars with a sharper theoretical lens for understanding 21st century American health care. PMID- 29349193 TI - An analysis of weight perception and physical activity and dietary behaviours among youth in the COMPASS study. AB - Purpose: Weight misperceptions appear common among youth, potentially influencing their motivation to engage in health-related behaviours; however, the direction of impact remains unclear. The current study examined how weight perception influences physical activity (PA) and diet among youth. Methods: This study used 2-year linked data of 19,322 grade 9-12 students from Year 2 (Y2:2013-2014) and 3 (Y3:2014-2015) of the COMPASS study. Generalized Estimating Equation models tested the effect of Y3 weight perception on the various Y3 PA and dietary behaviour measures, adjusting for Y3 covariates (grade, race/ethnicity, weekly spending money), school cluster, school area median household income, and the Y2 outcome. Models were stratified by gender and body mass index (BMI) classification. Results: Regardless of BMI status, overweight perceptions among boys and girls were associated with lower likelihoods of playing school sports, physical education class enrollment, meeting resistance exercise recommendations, eating breakfast regularly, and less vigorous-intensity PA, and among boys only, lower odds of meeting PA guidelines, compared to their peers who perceived their weight as "about right". In boys with normal-weight BMIs, underweight perceptions predicted less vigorous-intensity PA, and lower odds of physical education class enrollment, and of meeting PA and resistance exercise recommendations, than "about right" perceptions. Among girls, underweight perceptions predicted lower likelihoods of engaging in adequate resistance exercise and playing intramurals, and greater odds of eating fast food on weekends, purchasing snacks, and drinking energy drinks and sugar-sweetened beverages. Girls with overweight/obese BMIs who perceived their weight as such were less likely to consume adequate fruits and vegetables relative to their counterparts with "about right" weight perceptions. Conclusions: Overall, weight perceptions of "about right" appear more favourable for health behaviours among youth across the weight range. Results suggest obesity prevention strategies aiming to increase awareness of weight status may have unintended effects. PMID- 29349194 TI - The interplay of race, socioeconomic status and neighborhood residence upon birth outcomes in a high black infant mortality community. AB - This study examined the interrelationship of race and socioeconomic status (SES) upon infant birthweight at the individual and neighborhood levels within a Midwestern US county marked by high Black infant mortality. The study conducted a multi-level analysis utilizing individual birth records and census tract datasets from 2010, linked through a spatial join with ArcGIS 10.0. The maternal population of 2861 Black and White women delivering infants in 2010, residing in 57 census tracts within the county, constituted the study samples. The main outcome was infant birthweight. The predictors, race and SES were dichotomized into Black and White, low-SES and higher-SES, at both the individual and census tract levels. A two-part Bayesian model demonstrated that individual-level race and SES were more influential birthweight predictors than community-level factors. Specifically, Black women had 1.6 higher odds of delivering a low birthweight (LBW) infant than White women, and low-SES women had 1.7 higher odds of delivering a LBW infant than higher-SES women. Moderate support was found for a three-way interaction between individual-level race, SES and community-level race, such that Black women achieved equity with White women (4.0% Black LBW and 4.1% White LBW) when they each had higher-SES and lived in a racially congruous neighborhood (e.g., Black women lived in disproportionately Black neighborhood and White women lived in disproportionately White neighborhood). In sharp contrast, Black women with higher-SES who lived in a racially incongruous neighborhood (e.g., disproportionately White) had the worst outcomes (14.5% LBW). Demonstrating the layered influence of personal and community circumstances upon health, in a community with substantial racial disparities, personal race and SES independently contribute to birth outcomes, while environmental context, specifically neighborhood racial congruity, is associated with mitigated health risk. PMID- 29349195 TI - Inter-individual inequality in BMI: An analysis of Indonesian Family Life Surveys (1993-2007). AB - Widening inequalities in mean Body Mass Index (BMI) between social and economic groups are well documented. However, whether changes in mean BMI are followed by changes in dispersion (or variance) and whether these inequalities are also occurring within social groups or across individuals remain understudied. In addition, a substantial body of literature exists on the global increase in mean BMI and prevalence of overweight and obesity. However, whether this weight gain is shared proportionately across the whole spectrum of BMI distribution, also remains understudied. We examined changes in the distribution of BMI at the population level over time to understand how changes in the dispersion reflect between-group compared to within-group inequalities in weight gain. Moreover, we investigated the entire distribution of BMI to determine in which percentiles the most weight gain is occurring over time. Utilizing four waves (from 1993 to 2007) of Indonesian Family Life Surveys (IFLS), we estimated changes in the mean and the variance of BMI over time and across various socioeconomic groups based on education and households' expenditure per capita in 53,648 men and women aged 20 50 years. An increase in mean and standard deviation was observed among men (by 4.3% and 25%, respectively) and women (by 7.3% and 20%, respectively) over time. Quantile-Quantile plots showed that higher percentiles had greater increases in BMI compared to the segment of the population at lower percentiles. While between socioeconomic group differences decreased over time, within-group differences increased and were more prominent among individuals with poor education and lower per capita expenditures. Population changes in BMI cannot be fully described by average trends or single parameters such as the mean BMI. Moreover, greater increases in within-group dispersion compared with between-group differences imply that growing inequalities are not merely driven by these socioeconomic factors at the population level. PMID- 29349196 TI - The association between anti-immigrant policies and perceived discrimination among Latinos in the US: A multilevel analysis. AB - Research has found a strong inverse association between discrimination and health and well-being. Most of these studies have been conducted among African Americans, and have examined the relationship at the individual-level. To fill these gaps in knowledge we estimated the prevalence of perceived discrimination among a nationally representative sample of Latino adults in the US, and investigated the association between state-level anti-immigrant policies and perceived discrimination. We merged survey data with a state-level anti-immigrant policy index. First, we fit hierarchical logistic regression models to test the crude and adjusted association between anti-immigrant policies and perceived discrimination. Second, we specified cross-level interaction terms to test whether this association differed by relevant individual characteristics. Almost 70% of respondents reported discrimination (68.4%). More anti-immigrant policies were associated with higher levels of discrimination (OR=1.62, 95% CI 1.16, 2.24, p=0.01). The association between anti-immigrant policies and discrimination differed by place of origin (p=0.001) and was marginally moderated by generation status (p=0.124). Anti-immigrant policies stigmatize both foreign and US-born Latinos by creating a hostile social environment which affects their experiences of discrimination. These non-health policies can adversely affect Latino health, in part through exposure to discrimination, and may help explain health patterns among Latinos in the US. PMID- 29349197 TI - Income disparities in cardiovascular health across the lifespan. AB - Using data from the 1999-2014 National Health and Nutrition Examination Survey (n ~ 46,000), this study documents income disparities in the age patterning of cardiovascular conditions across the lifespan in the U.S. The conditions were assessed from laboratory test results, self-reports of medications used to treat specific conditions, and anthropometric measurements, allowing us to capture whether individuals at given ages had developed the various conditions, regardless of previous diagnosis and treatment. We found evidence of large income disparities in the presence of cardiovascular conditions and risk factors for females, smaller disparities in the same conditions for males, and few disparities that increased with age for either gender. Results were very similar when considering disparities by education instead of income. The findings suggest that the widening socioeconomic gradients in health over the lifespan found in many previous studies-which have generally focused on self-rated health, activity limitations, or diagnosed conditions-reflect, at least to some extent, differences in diagnosis, treatment, and management of health conditions rather than age-related differences in developing them. The findings also suggest that preventive healthcare is not an important source of socioeconomic disparities in cardiovascular health in the U.S., at least for men. The observed patterns of income disparities in cardiovascular conditions over the lifespan are more consistent with theories of early life conditions and the imprinting of health endowments and susceptibilities early in life than with cumulative life exposure or stress hypotheses. PMID- 29349198 TI - Invited commentary: The long term impact of forced migration during childhood on adult health. AB - Saarela and Elo (SSM-Population Health; Volume 2, December 2016, Pages 813-823) provide new evidence of early life forced displacement not being adversely associated with adult health. Their study highlights some of the challenges to identifying a causal effect of childhood exposure on adult health in the context of complex emergencies. Importantly, it opens up for future research that can address commonly recognized sources of bias and identify intervening pathways linking forced migration with adult health outcomes. PMID- 29349199 TI - Efficiency or equity? Simulating the impact of high-risk and population intervention strategies for the prevention of disease. AB - Maximizing both efficiency and equity are core considerations for population health. These considerations can result in tension in population health science as we seek to improve overall population health while achieving equitable health distributions within populations. Limited work has explored empirically the consequences of different population health intervention strategies on the burden of disease and on within- and between-group differences in disease. To address this gap, we compared the impact of four simulated interventions using data from the National Health and Nutrition Examination Survey. In particular, we focus on assessing how population and high-risk primary prevention and population and high risk secondary interventions efforts to reduce smoking behavior influence systolic blood pressure (SBP) and hypertension, and how such strategies influence inequalities in SBP by income. The greatest reductions in SBP mean and standard deviation resulted from the population secondary prevention. High-risk primary and secondary prevention and population secondary prevention programs all yielded substantial reductions in hypertension prevalence. The effect of population primary prevention did little to decrease population SBP mean and standard deviation, as well as hypertension prevalence. Both high-risk strategies had a larger impact in the low-income population, leading to the greatest narrowing the income-related gap in disease. The population prevention strategies had a larger impact in the high-income population. Population health approaches must consider the potential impact on both the whole population and also on those with different levels of risk for disease within a population, including those in under-represented or under-served groups. PMID- 29349200 TI - Changes in living arrangements and mortality among older people in China. AB - Living arrangements in later life are dynamic, with changes associated with life events such as widowhood or moves into an institution. Previous research has found particular changes in living arrangements to be associated with an elevated risk of mortality. However, research in this area within the context of China is limited, despite China being home to the world's largest population of older people. This study investigates the impact of changes in living arrangements on older persons' survival using the Chinese Longitudinal Healthy Longevity Survey from 2002 to 2011. The original sample was 16,064 in 2002, and this study includes 6191 individuals who survived in 2005 and had complete information of track record in later waves. Changes in living arrangements are examined between 2002 and 2005. Cox-proportional hazards models are then used to investigate the association between the dynamics of living arrangements and respondents' survival status from 2005 to 2011 . Results show that men and women who lived in an institution in both 2002 and 2005, or who moved into an institution from living with family faced a greater risk of dying compared to those continuing to live with family. By contrast, continuing to live with family or alone, or moving between living with family and living alone, were not associated with an increased mortality risk, although there were some differences by gender. The institutional care sector in China is still in its infancy, with provision based on ability to pay market fees rather than need associated with age-related function impairment. The findings show that living in, or moving into, an institution is associated with a high mortality risk therefore requires further investigation in the context of a rapidly changing Chinese society. PMID- 29349201 TI - Factors affecting the physical and mental health of older adults in China: The importance of marital status, child proximity, and gender. AB - Evidence is accumulating about the association between strong family ties and the emotional and physical welfare of older adults, and researchers have identified negative consequences of being unmarried, being childless, and/or living alone. These associations have been recognized in multiple contexts, including in Asia where living with a spouse and/or grown children has been shown in some studies to improve elderly well-being. Social support, especially family support, is expected to continue to be important where populations are aging and social safety nets are weak. Using longitudinal data from the 2010 and 2012 waves of the China Family Panel Studies, we focus on the effects of marital status at times 1 and 2, changes in marital status between the two surveys, and other family related indicators of social connectedness on ratings of depression, levels of life satisfaction, and self-reported physical health among those aged 50 and over. Our sample includes 9831 respondents who have valid data on wellbeing indicators for Wave 1 and Wave 2, as well as complete information on the other covariates controlled in our analysis. In analyses of the full sample, those who were married at both points in time reported lower depression scores than those who were never-married, divorced, or widowed at both time points, and those whose unions dissolved in the interval. Those who were married at both times also generally reported greater levels of life satisfaction than those who were never married at both time points and those who became divorced during the interval. Important underlying gender differences are observed both for life satisfaction and depression. In addition, those who were married at both time points reported being in better physical health than those who became widowed during the interval (significant primarily for women), and those who had never been married (significant primarily for men). Our study contributes to the literature on social ties and the wellbeing by highlighting the importance of marital status and changing marital status, net of child co-residence and proximity, in China. PMID- 29349202 TI - Healthcare access: A sequence-sensitive approach. AB - It is widely accepted that healthcare-seeking behaviour is neither limited to nor terminated by access to one single healthcare provider. Yet the sequential conceptualisation of healthcare-seeking processes has not diffused into quantitative research, which continues to analyse healthcare access as a "one off" event. The ensuing lack of understanding healthcare behaviour is problematic in light of the immense burden of premature death especially in low- and middle income countries. This paper presents an alternative approach. Based on a novel survey instrument, we analyse original survey data from rural India and China that contain 119 unique healthcare pathways among 637 respondents. We offer three applications of how such sequential data can be analysed to enhance our understanding of people's health behaviour. First, descriptive analysis of sequential data enables more a comprehensive representation of people's health behaviours, for example the time spent in various healthcare activities, common healthcare pathways across different groups, or shifts in healthcare provider access during a typical illness. Second, by analysing the effect of mobile technology on healthcare-seeking process characteristics, we demonstrate that conventional, sequence-insensitive indicators are potentially inconsistent and misleading approximations when compared to a more precise, sequence-sensitive measure. Third, we describe how sequential data enable transparent and flexible evaluations of people's healthcare behaviour. The example of a sequence insensitive evaluation suggests that household wealth has no statistical link to an illustrative "ideal" form of public healthcare utilisation. In contrast, sequence-sensitive evaluations demonstrate that household wealth is associated with an increased likelihood of bypassing referral processes and approaching unregulated and costly informal and private practitioners before accessing a public clinic. Sequential data therefore do not only reveal otherwise neglected locational idiosyncrasies, but they also yield deeper insights into the drivers of people's health behaviours compared to a conventional approach to "access to healthcare." PMID- 29349204 TI - Validity of a scale of neighbourhood informal social control relevant to pre schoolers' physical activity: A cross-sectional study. AB - Childhood physical activity (PA) is important for health across the lifespan. Time pre-schoolers spend outdoors, which has been associated with more PA, is likely influenced by parents' perception of neighbourhood informal social control relevant to pre-schoolers' PA, defined as the willingness of neighbours to intervene to ensure social order and a safe community environment for young children's active play. To advance measurement of this construct, we assessed factorial and construct validities of the PA-related neighbourhood informal social control scale for parents of pre-schoolers (PANISC-PP). In 2013-2014, Hong Kong primary caregivers (n=394) of 3-5 year-old children completed a socio demographic questionnaire, the preliminary version of the PANISC-PP, and self report measures of theoretical neighbourhood correlates of PA-related neighbourhood informal social control (perceived signs of physical and social disorder, community cohesion, perceived stranger danger, risk of unintentional injury and traffic safety). The fit of the data to an a priori measurement model of the PANISC-PP was examined using confirmatory factor analyses. As the a priori model showed inadequate fit to the data, the factor structure was re-specified based on theoretical considerations. The final measurement models of the PANISC PP showed acceptable fit to the data and consisted of three correlated latent factors: "General informal supervision", "Civic engagement for the creation of a better neighbourhood environment" and "Educating and assisting neighbourhood children". The internal reliability of the subscales was good (Cronbach's alpha values 0.82-0.89). Generalised additive mixed models indicated that all subscales were positively associated with community cohesion and scores on the subscale "Educating and assisting neighbourhood children" were related in the expected direction to all indicators of traffic and personal safety, supporting construct validity of the PANISC-PP. This study suggests that the PANISC-PP is a reliable and valid instrument for assessing parents' perceived neighbourhood informal social control related to pre-schoolers' PA. PMID- 29349203 TI - Neighbourhood socioeconomic status indices and early childhood development. AB - The developmental health of young children is highly influenced by the socioeconomic conditions in which they are raised. How to accurately measure these conditions is a point of debate in the current literature on child development, health, and social determinants. We have evaluated four existing indices of socioeconomic status (SES) to determine the most relevant for the analysis of early childhood development (ECD) in Canada. Following a literature review of published SES indices which used 2006 Canadian Census data, four indices were chosen based on their relevance to ECD and the number of citations in subsequent articles. These were: the Canadian Deprivation Index, the Socioeconomic Factor Index, the Canadian Marginalization Index and an index created by the Early Childhood Mapping Project in Alberta, Canada. The indices were replicated using SES data for 2038 customized geographic neighbourhoods encompassing 99.9% of the Canadian population, and the relationship of the indices to ECD was investigated by linking to aggregated data from the Early Development Instrument (EDI), a teacher-completed questionnaire used to assess kindergarten children's physical, social, emotional, and cognitive development, and communication skills. The derived SES indices were compared based on four criteria: the input variables used, the index structure, the interpretability of the index and the variance they explained (R2) in the different EDI outcome measures. In terms of variance explained, material components of the SES indices (e.g., income, education) consistently showed the strongest association with children's language and cognitive development. The patterns of association for the non-material SES components and the other developmental domains of the EDI were more complex. We discuss the findings in regard to current developments in the field, and the need for refining empirical and theoretical approaches to examine associations between different facets of SES contextual factors and different aspects of ECD outcomes. PMID- 29349205 TI - Cool? Young people investigate living in cold housing and fuel poverty. A mixed methods action research study. AB - Background: Living in cold housing conditions and risk of fuel poverty presents a range of physiological and psychosocial health risks. Limited research has specifically investigated the effects of fuel poverty on children and young people, and even less has been conducted with youth input into the research process. Methods: The Cool? Study used mixed methods, participatory action research carried out with youth researchers involved at all stages through questionnaire design, analysis, qualitative design, e-interviewing and dissemination of results. This article reports on results of an online survey of 656 adolescents aged 14-16 years completed at 17 schools in New Zealand. Sampling was based on selecting schools for invitation, with the probability of selection weighted proportional to school size, within strata defined by climate zone. Results from a small e-mail interview study of survey respondents who consented to follow-up are also reported. Results: The study found that almost half of the survey respondents (47%) felt their home was sometimes cold during the winter; a further 40% felt their home was often or always cold. More than two thirds of respondents (70%) had shivered inside at least once during winter. Respondents were more likely to report key indicators of fuel poverty depending on their self reported ethnicity, with Maori at increased risk. Living in private rental housing or state-owned housing also increased risk of fuel poverty compared to those in owner-occupied dwellings. Participants of email interviews expressed concern about the widespread problem of cold housing for youth and a desire for Government intervention. Conclusion: The integrated results confirm that cold housing and risk of fuel poverty are important problems for young people in New Zealand. Results contribute to the evidence-base for policy targeting of schemes such as the Government-sponsored retrofitting of insulation to households with dependent children. PMID- 29349206 TI - Dark shadow of the long white cloud: Neighborhood safety is associated with self rated health and cortisol during pregnancy in Auckland, Aotearoa/New Zealand. AB - Auckland, Aotearoa/New Zealand is a culturally and ethnically diverse city. Despite popular global conceptions regarding its utopian nature, the lived experience for many individuals in Auckland attests to the substantial social, economic, and health inequalities that exist there. In particular, rapidly rising home prices constrain housing decisions and force individuals to live in less desirable neighborhoods, with potential impacts on individual health. One of the pathways through which adverse neighborhood conditions could impact health is through alterations in the functioning of the hypothalamic pituitary adrenal (HPA)-axis, which regulates the physiological stress response. This paper evaluates the relationship between perceived neighborhood safety, self-rated health, and cortisol, an end product of HPA-axis activation, among women in late pregnancy. Pregnant women living in neighborhoods where they were concerned about safety of their property had poorer self-rated health and elevated morning cortisol, even after adjusting for maternal age, material deprivation, and ethnicity. However, fear of personal safety was unrelated to self-rated health and cortisol. These results suggest that maternal health in pregnancy is sensitive to perceptions regarding neighborhood safety. Such findings are important since higher cortisol levels in pregnancy could not only influence maternal health, but also the health and development of women's children. PMID- 29349207 TI - Gender career divide and women's disadvantage in depressive symptoms and physical limitations in France. AB - This study investigated the relationship between women's disadvantage in mental health and physical functioning and gender differences in career backgrounds. Sexual division of labor persists and key career characteristics are overrepresented in women: low-skilled first job, downward occupational trajectory, interruptions. These interrelated characteristics are usually linked to poor health. Their overrepresentation in women may be related to the female male health gap; however, it may not if overrepresentation transposed into substantially weaker associations with poor health outcomes. To address this question, we used the French population survey "Health and Occupational Trajectories" (2006) and focused on 45-74 year-old individuals who ever worked (n=7537). Past career characteristics were qualified by retrospective information. Logistic regressions identified past characteristics related to current depressive symptoms and physical limitations. Non-linear decomposition showed whether these characteristics contributed to the gender health gap, through their different distribution and/or association with health. The overrepresentation of unskilled first jobs, current and past inactivity and unemployment in women contributed to their excess depressive symptoms. These contributions were only slightly reduced by the weaker mental health-relatedness of current inactivity in women and increased by the stronger relatedness of low skilled and self-employed first jobs. Overrepresentation of current inactivity, past interruptions and downward trajectories also contributed positively to women's excess physical limitations. Gender-specific career backgrounds were significantly linked to women's disadvantage in mental health and physical functioning. We need to further explore whether equalization of opportunities, especially at the early stages and in terms of career continuity, could help to reduce women's mental and physical health disadvantage. PMID- 29349208 TI - In sickness and in health: The role of marital partners in cancer survival. AB - Married cancer patients enjoy a survival advantage, potentially attributable to better health at diagnosis, earlier contact with health personnel, and/or access to resources to ensure more optimal treatment. These mechanisms only invoke the mere presence of a partner, but partners bring varying amounts of resources into the household. It is likely that also spousal resources contribute to differentials in survival net of own resources, as gradients in survival by the latter are well documented. Our aim is to examine the combined roles of own and spouses' socioeconomic characteristics (SES) and age for cancer survival. Almost 268,000 married patients diagnosed with a first cancer after age 50 during 1975 2007 were identified from the Norwegian Cancer Registry and other national registers. In a sequence of hazard models, differences in survival by patients' own education, income and age and the role of spouses' characteristics were assessed. Furthermore, we also assessed the importance of homogamy/heterogamy along the same dimensions. Partners' characteristics clearly matter for survival. The relative survival of patients with highly educated partners, net of their own education, is significantly higher than that of patients with lesser-educated partners. Somewhat similar effects are observed for income, net of education. A less consistent pattern is observed for age, although non-normative heterogamy patterns in age and income appear to be associated with a survival disadvantage. The naive perspective of only considering the presence of partners may thus conceal important differences in cancer survival. Health personnel may take advantage of such knowledge in interactions with patients and their families, and gather information on resources in immediate networks that may impact prognosis favorable and/or unfavorable and help patients utilize these resources to improve prognosis. PMID- 29349209 TI - Immigration concern and the white/non-white difference in smoking: Group position theory and health. AB - National data indicate that U.S. whites have a higher prevalence of smoking compared to non-whites. Group position theory and public opinion data suggest racial differences in immigration concern. This study examines whether immigration concern mediates the racial difference in smoking. Drawing on the 2012 General Social Survey, the 2012 American National Election Study, and the 2006 Portraits of American Life Study, immigration concern was associated with smoking, controlling for covariates across all three nationally representative surveys. Mediation analysis indicated that immigration concern partially mediated the higher odds of smoking among whites across all surveys. Immigration concern also presents a possible explanation for the healthy immigrant advantage and Hispanic paradox as they pertain to smoking differences. PMID- 29349210 TI - Early-life conditions and child development: Evidence from a violent conflict. AB - This paper investigates how the exposure to violent conflicts in utero and in early and late childhood affect human capital formation. I focus on a wide range of child development outcomes, including novel cognitive and non-cognitive indicators. Using monthly and municipality-level variation in the timing and severity of massacres in Colombia from 1999 to 2007, I show that children exposed to terrorist attacks in utero and in childhood achieve lower height-for-age (0.09 SD) and cognitive outcomes (PPVT falls by 0.18SD and math reasoning and general knowledge fall by 0.16SD), and that these results are robust to controlling for mother fixed-effects. The timing of these exposures matters and differs by type of skill. In terms of parental investments, I find some evidence that parents reinforce the negative effects of violence by increasing their frequency of physical aggression. PMID- 29349211 TI - Who votes for public health? U.S. senator characteristics associated with voting in concordance with public health policy recommendations (1998-2013). AB - Background: The voting behaviors of elected officials shape the public's health. Little is known, however, about the characteristics of elected officials who vote in concordance with public health policy recommendations. This article presents the results of study conducted with the aims of: 1) testing the hypothesis that US Democrat Senators vote in concordance with American Public Health Association (APHA) policy recommendations more frequently than US Republican Senators, 2) identifying US Senator characteristics independently associated with voting in concordance with APHA, and 3) assessing trends in APHA voting concordance by political party. Methods: We created a legislative dataset of 1434 votes cast on 111 legislative proposals by 184 US Senators during the years 1998 through 2013. Mixed effects linear regression models were used to estimate the independent contributions of political party, gender, geographic region, and year effects to annual APHA voting concordance. Votes were nested within Senators who were nested within States to account for non-independence and models considered potential for time and spatial patterns in the data. Results: Adjusting for covariates and accounting for serial and spatial autocorrelation, Democrats averaged 59.1 percentage points higher in annual APHA voting concordance than Republicans (95% CI: 55.5, 62.7), females averaged 7.1 percentage points higher than males (95% CI: 1.9, 12.3), and Northeastern Senators averaged 16.1 percentage points higher than Southern Senators (95% CI: 9.1, 23.1). Conclusions: Elected official's political party affiliation, gender, and geographic region are independently associated with public health voting decisions and should be considered when targeting and tailoring science-based policy dissemination strategies. PMID- 29349212 TI - Place, health, and community attachment: Is community capacity associated with self-rated health at the individual level? AB - Community-level interventions dominate contemporary public health responses to health inequalities as a lack of political will has discouraged action at a structural level. Health promoters commonly leverage community capacity to achieve programme goals, yet the health implications of low community capacity are unknown. In this study, we analyse perceptions of community capacity at the individual-level to explore how place-based understandings of identity and connectedness are associated with self-rated health. We examine associations between individual community capacity, self-rated health and income using a cross sectional survey that was disseminated to 303 residents of four small (populations 1500-2000) New Zealand towns. Evidence indicating a relationship between individual community capacity and self-reported health was unconvincing once the effects of income were incorporated. That is, people who rated their community's capacity higher did not have better self-rated health. Much stronger evidence supported the relationship between income and both higher individual community capacity and higher self-rated health. We conclude that individual community capacity may mediate the positive association between income and health, however, overall we find no evidence suggesting that intervening to enhance individual community capacity is likely to improve health outcomes. PMID- 29349213 TI - Socioeconomic inequality in morbid obesity with body mass index more than 40 kg/m2 in the United States and England. AB - Introduction: This study evaluated socioeconomic inequality in morbid obesity (body mass index, BMI >=40 kg/m2) through an analysis of population health survey data in the United States (US) and England (UK). Methods: We analysed data for the National Health and Nutrition Examination Survey and the Health Survey for England for 2011 to 2014. Age-adjusted odds ratios (AOR) were used to evaluate income- and education-inequality. Results: There were 26,898 eligible UK and 10,628 US participants. Morbid obesity was more frequent in women than men, and higher in the US than the UK (men: US, 4.8%; UK, 1.7%; women US, 9.6%; UK, 3.7%). In the UK, morbid obesity showed graded income-inequality in both genders (AOR, for lowest income quintile: men, 1.83, 95% confidence interval 1.16 to 2.88; women, 2.18, 1.55 to 3.07), as well as education-inequality (AOR for no school qualifications, men 2.57, 1.64 to 4.02; women, 2.18, 1.55 to 3.07). In the US, morbid obesity showed a consistent gradient only for income in women (AOR for lowest income quintile 1.97, 1.19 to 3.25). When compared with all other US groups, having college education (AOR, men, 0.56, 0.29 to 1.08; women, 0.36, 0.22 to 0.60) or household income >=$75 000 (AOR, men 0.52, 0.27 to 0.98; women, 0.51, 0.33 to 0.80) appeared to protect against morbid obesity. Conclusions: Morbid obesity is associated with lower socioeconomic status in men and women in the UK. In the US, morbid obesity was twice as prevalent, but less strongly associated with socioeconomic status, suggesting that morbid obesity may now have spread to all but the highest socioeconomic groups. PMID- 29349214 TI - Performance-based financing to increase utilization of maternal health services: Evidence from Burkina Faso. AB - Performance-based financing (PBF) programs are increasingly implemented in low and middle-income countries to improve health service quality and utilization. In April 2011, a PBF pilot program was launched in Boulsa, Leo and Titao districts in Burkina Faso with the objective of increasing the provision and quality of maternal health services. We evaluate the impact of this program using facility level administrative data from the national health management information system (HMIS). Primary outcomes were the number of antenatal care visits, the proportion of antenatal care visits that occurred during the first trimester of pregnancy, the number of institutional deliveries and the number of postnatal care visits. To assess program impact we use a difference-in-differences approach, comparing changes in health service provision post-introduction with changes in matched comparison areas. All models were estimated using ordinary least squares (OLS) regression models with standard errors clustered at the facility level. On average, PBF facilities had 2.3 more antenatal care visits (95% CI [0.446 4.225]), 2.1 more deliveries (95% CI [0.034-4.069]) and 9.5 more postnatal care visits (95% CI [6.099, 12.903]) each month after the introduction of PBF. Compared to the service provision levels prior to the interventions, this implies a relative increase of 27.7 percent for ANC, of 9.2 percent for deliveries, and of 118.7 percent for postnatal care. Given the positive results observed during the pre-pilot period and the limited resources available in the health sector, the PBF program in Burkina Faso may be a low-cost, high impact intervention to improve maternal and child health. PMID- 29349215 TI - Public health and the economy could be served by reallocating medical expenditures to social programs. AB - As much as 30% of US health care spending in the United States does not improve individual or population health. To a large extent this excess spending results from prices that are too high and from administrative waste. In the public sector, and particularly at the state level, where budget constraints are severe and reluctance to raise taxes high, this spending crowds out social, educational, and public-health investments. Over time, as spending on medical care increases, spending on improvements to the social determinants of health are starved. In California the fraction of General Fund expenditures spent on public health and social programs fell from 34.8% in fiscal year 1990 to 21.4% in fiscal year 2014, while health care increased from 14.1% to 21.3%. In spending more on healthcare and less on other efforts to improve health and health determinants, the state is missing important opportunities for health-promoting interventions with a strong financial return. Reallocating ineffective medical expenditures to proven and cost-effective public health and social programs would not be easy, but recognizing its potential for improving the public's health while saving taxpayers billions of dollars might provide political cover to those willing to engage in genuine reform. National estimates of the percent of medical spending that does not improve health suggest that approximately $5 billion of California's public budget for medical spending has no positive effect on health. Up to 10,500 premature deaths could be prevented annually by reallocating this portion of medical spending to public health. Alternatively, the same expenditure could help an additional 418,000 high school students to graduate. PMID- 29349216 TI - Family of origin and educational inequalities in mortality: Results from 1.7 million Swedish siblings. AB - Circumstances in the family of origin have short- and long-term consequences for people's health. Family background also influences educational achievements - achievements that are clearly linked to various health outcomes. Utilizing population register data, we compared Swedish siblings with different levels of education (1,732,119 individuals within 662,095 sibships) born between 1934 and 1959 and followed their death records until the end of 2012 (167,932 deaths). The educational gradient in all-cause mortality was lower within sibships than in the population as a whole, an attenuation that was strongest at younger ages (< 50 years of age) and for those with a working class or farmer background. There was substantial variation across different causes of death with clear reductions in educational inequalities in, e.g., lung cancer and diabetes, when introducing shared family factors, which may indicate that part of the association can be ascribed to circumstances that siblings have in common. In contrast, educational inequalities in suicide and, for women, other mental disorders increased when adjusting for factors shared by siblings. The vast variation in the role of childhood conditions for the education-mortality association may help us to further understand the interplay between family background, education, and mortality. The increase in the education gradient in suicide when siblings are compared may point towards individually oriented explanations ('non-shared environment'), perhaps particularly in mental disorders, while shared family factors primarily seem to play a more important role in diseases in which health behaviors are most significant. PMID- 29349217 TI - The Mothers on Respect (MOR) index: measuring quality, safety, and human rights in childbirth. AB - Background: Abuse of human rights in childbirth are documented in low, middle and high resource countries. A systematic review across 34 countries by the WHO Research Group on the Treatment of Women During Childbirth concluded that there is no consensus at a global level on how disrespectful maternity care is measured. In British Columbia, a community-led participatory action research team developed a survey tool that assesses women's experiences with maternity care, including disrespect and discrimination. Methods: A cross-sectional survey was completed by women of childbearing age from diverse communities across British Columbia. Several items (31/130) assessed characteristics of their communication with care providers. We assessed the psychometric properties of two versions of a scale (7 and 14 items), among women who described experiences with a single maternity provider (n=2514 experiences among 1672 women). We also calculated the proportion and selected characteristics of women who scored in the bottom 10th percentile (those who experienced the least respectful care). Results: To demonstrate replicability, we report psychometric results separately for three samples of women (S1 and S2) (n=2271), (S3, n=1613). Analysis of item-to-total correlations and factor loadings indicated a single construct 14-item scale, which we named the Mothers on Respect index (MORi). Items in MORi assess the nature of respectful patient-provider interactions and their impact on a person's sense of comfort, behavior, and perceptions of racism or discrimination. The scale exhibited good internal consistency reliability. MORi- scores among these samples differed by socio-demographic profile, health status, experience with interventions and mode of birth, planned and actual place of birth, and type of provider. Conclusion: The MOR index is a reliable, patient-informed quality and safety indicator that can be applied across jurisdictions to assess the nature of provider-patient relationships, and access to person-centered maternity care. PMID- 29349218 TI - Comparing methods of targeting obesity interventions in populations: An agent based simulation. AB - Social networks as well as neighborhood environments have been shown to effect obesity-related behaviors including energy intake and physical activity. Accordingly, harnessing social networks to improve targeting of obesity interventions may be promising to the extent this leads to social multiplier effects and wider diffusion of intervention impact on populations. However, the literature evaluating network-based interventions has been inconsistent. Computational methods like agent-based models (ABM) provide researchers with tools to experiment in a simulated environment. We develop an ABM to compare conventional targeting methods (random selection, based on individual obesity risk, and vulnerable areas) with network-based targeting methods. We adapt a previously published and validated model of network diffusion of obesity-related behavior. We then build social networks among agents using a more realistic approach. We calibrate our model first against national-level data. Our results show that network-based targeting may lead to greater population impact. We also present a new targeting method that outperforms other methods in terms of intervention effectiveness at the population level. PMID- 29349219 TI - Drug involvement in fatal overdoses. AB - Death certificate data from the Multiple Cause of Death (MCOD) files were analyzed to better understand the drug categories most responsible for the increase in fatal overdoses occurring between 1999 and 2014. Statistical adjustment methods were used to account for the understatement in reported drug involvement occurring because death certificates frequently do not specify which drugs were involved in the deaths. The frequency of combination drug use introduced additional uncertainty and so a distinction was made between any versus exclusive drug involvement. Many results were sensitive to the starting and ending years chosen for examination. Opioid analgesics played a major role in the increased drug deaths for analysis windows starting in 1999 but other drugs, particularly heroin, became more significant for recent time periods. Combination drug use was important for all time periods and needs to be accounted for when designing policies to slow or reverse the increase in overdose deaths. PMID- 29349220 TI - Adult mortality in sub-saharan Africa, Zambia: Where do adults die? AB - Place of death remains an issue of growing interest and debate among scholars as an indicator of quality of end-of-life care in developed countries. In sub Saharan Africa, however, variations in place of death may suggest inequalities in access to and the utilization of health care services that should be addressed by public health interventions. Limited research exists on factors associated with place of death in sub-Saharan Africa. The study examines factors associated with the place of death among Zambian adults aged 15-59 years using the 2010-2012 sample vital registration with verbal autopsy survey (SAVVY) data, descriptive statistics and multivariate logistic regression analysis. Results show that more than half of the adult deaths occurred in a health facility and two-fifths died at home. Higher educational attainment, urban versus rural residence, and being of female gender were significant predictors of the place of death. Improvement in educational attainment and investment in rural health facilities and the health care system as a whole may improve access and utilization of health services among adults. PMID- 29349221 TI - Women at war: The crucible of Vietnam. AB - Relatively little has been written about the military women who served in Vietnam, and there is virtually no literature on deployed civilian women (non military). We examined the experiences of 1285 American women, military and civilian, who served in Vietnam during the war and responded to a mail survey conducted approximately 25 years later in which they were asked to report and reflect upon their experiences and social and health histories. We compare civilian women, primarily American Red Cross workers, to military women stratified by length of service, describe their demographic characteristics and warzone experiences (including working conditions, exposure to casualties and sexual harassment), and their homecoming following Vietnam. We assess current health and well-being and also compare the sample to age- and temporally comparable women in the General Social Survey (GSS), with which our survey shared some measures. Short-term (<10 years) military service women (28%) were more likely to report their Vietnam experience as "highly stressful" than were career (>20 years; 12%) and civilian women (13%). Additional differences regarding warzone experiences, homecoming support, and health outcomes were found among groups. All military and civilian women who served in Vietnam were less likely to have married or have had children than women from the general population, chi2 (8) = 643.72, p < .001. Career military women were happier than women in the general population (48% were "very happy", as compared to 38%). Civilian women who served in Vietnam reported better health than women in the other groups. Regression analyses indicated that long-term physical health was mainly influenced by demographic characteristics, and that mental health and PTSD symptoms were influenced by warzone and homecoming experiences. Overall, this paper provides insight into the experiences of the understudied women who served in Vietnam, and sheds light on subgroup differences within the sample. PMID- 29349222 TI - A comprehensive analysis of the mortality experience of hispanic subgroups in the United States: Variation by age, country of origin, and nativity. AB - Although those identifying as "Hispanic or Latino" experience lower adult mortality than the more socioeconomically advantaged non-Hispanic white population, the ethnic category Hispanic conceals variation by country of origin, nativity, age, and immigration experience. The current analysis examines adult mortality differentials among 12 Hispanic subgroups by region of origin and nativity, and non-Hispanic whites, adjusting for socioeconomic and demographic characteristics. We use the National Health Interview Survey Linked Mortality Files pooled 1990-2009 to obtain sufficient sample of each subgroup to calculate mortality estimates by sex and age group (25-64, 65+). Among adults aged 65 and over, all foreign born subgroups have an advantage over non-Hispanic whites, and many USB subgroups exhibit an advantage in the adjusted model. Foreign-born Dominicans, Central/South Americans, and other Hispanics exhibit consistent advantages across models for both men and women, aged 25-64 and 65 and over, and both unadjusted and adjusted for socioeconomic covariates. Both US-born and foreign-born Mexicans between ages 25 and 64 have mortality disadvantaged relative to non-Hispanic whites, while older Mexicans exhibit clear advantages. Our results complicate the traditional formulation of the Hispanic Paradox and cast doubt on the singularity of the mortality experience of those of Hispanic origin. PMID- 29349223 TI - Social participation and self-rated psychological health: A longitudinal study on BHPS. AB - Although social capital has been hypothesized to have positive influence on psychological health, a relationship between social capital dimensions and psychological wellbeing has rarely been found. This longitudinal study investigates the relationship between social participation in associations and self-rated psychological health. The paper uses five waves of the British Household Panel Survey (BHPS) from 1991 to 1995 (unbalanced panel N=45,761). Ordered logit fixed effect methods were used to study the longitudinal link between structural social capital (being a member, active, and both a member and active in associations) and self-rated psychological health assessed by single items of the General Health Questionnaire (GHQ-12) controlling for age, marital status, household size, number of children, education, income, economic status, number of visits to the GP and health problems. The paper shows that being only a member and only active in associations has no statistical relationship with almost all the items of the GHQ-12. Instead, being both a member and active in associations is linked to all "positive" items of self-rated psychological health and to two main "negative" items of psychological wellbeing. These findings highlight the protective role of being both a member and active in associations against poor psychological health outcomes. PMID- 29349224 TI - A couple-level analysis of participation in physical activity during unemployment. AB - There is a well-documented negative correlation between unemployment and health. Yet, little research has examined how unemployment relates to participation in physical activity, and few researchers have considered how an individual's unemployment may affect the health of their spouse or partner. The purpose of this study is to answer three questions: 1. Is one's own unemployment associated with changes in physical activity participation? 2. Is one's partner's unemployment associated with changes in physical activity participation? 3. Do changes in physical activity behaviors associated with unemployment differ by gender? This study uses nationally representative, longitudinal data on couples in the United States, covering the period 1999-2013. These data, obtained from the Panel Study of Income Dynamics, are used to estimate fixed-effects models of the relationships between one's own, and one's partner's, unemployment and participation in physical activity. I find that for men unemployment is not associated with changes in physical activity time. For women, own unemployment is associated with increases in physical activity, whereas a partner's unemployment is associated with decreases in physical activity. I argue that unemployed women, unlike men, are able to take advantage of the increased availability of time through reduced labor supply to invest in their health during unemployment, which could have positive long-run consequences. Results suggest the importance of studying unemployment and health at the household level and suggest a need for further investigation into gender differences in unemployment and health. PMID- 29349225 TI - Intergenerational differences in smoking among West Indian, Haitian, Latin American, and African blacks in the United States. AB - Due in large part to increased migration from Africa and the Caribbean, black immigrants and their descendants are drastically changing the contours of health disparities among blacks in the United States. While prior studies have examined health variation among black immigrants by region of birth, few have explored the degree of variation in health behaviors, particularly smoking patterns, among first- and second- generation black immigrants by ancestral heritage. Using data from the 1995-2011 waves of the Tobacco Use Supplements of the Current Population Survey (TUS-CPS), we examine variation in current smoking status among first-, second-, and third/higher- generation black immigrants. Specifically, we investigate these differences among all black immigrants and then provide separate analyses for individuals with ancestry from the English-speaking Caribbean (West Indies), Haiti, Latin America, and Africa-the primary sending regions of black immigrants to the United States. We also explore differences in smoking behavior by gender. The results show that, relative to third/higher generation blacks, first-generation black immigrants are less likely to report being current smokers. Within the first-generation, immigrants who migrated after age 13 have a lower probability of smoking relative to those who migrated at or under age 13. Disparities in smoking prevalence among the first-generation by age at migration are largest among black immigrants from Latin America. The results also suggest that second-generation immigrants with two foreign-born parents are generally less likely to smoke than the third/higher generation. We find no statistically significant difference in smoking between second-generation immigrants with mixed nativity parents and the third or higher generation. Among individuals with West Indian, Haitian, Latin American, and African ancestry, the probability of being a current smoker increases with each successive generation. The intergenerational increase in smoking, however, is slower among individuals with African ancestry. Finally, with few exceptions, our results suggest that intergenerational gaps in smoking behavior are larger among women compared to men. As additional sources of data for this population become available, researchers should investigate which ancestral subgroups are driving the favorable smoking patterns for the African origin population. PMID- 29349226 TI - Seeking relief: Bankruptcy and health outcomes of adult women. AB - This study examined the impact of declaring consumer bankruptcy on the physical and mental health of adult women and if outcomes differed depending on whether the filer received automatic debt discharge under Chapter 7 compared to a debt repayment plan with Chapter 13. Sample data consisted of women from the NLSY79 cohort who completed the age 40 and 50 health modules as of the most recent wave. Results indicated a negative effect of bankruptcy on self-assessed health, whereas prior health history explained its negative relationship with depressive symptoms. Debt liquidation under Chapter 7 was associated with poor physical health relative to those who did not file and with depressive symptoms relative to Chapter 13 repayment plan filers. Poor health is an unintended consequence for women who seek financial relief through bankruptcy. PMID- 29349227 TI - Conceptualizing, measuring and evaluating constructs of the adolescent neighbourhood social environment: A systematic review. PMID- 29349228 TI - Children's migration and lifestyle-related chronic disease among older parents 'left behind' in india. AB - Lifestyle-related chronic diseases such as cardiovascular diseases and diabetes are now the leading causes of death and disability in India. Interestingly, those Indian states with the highest prevalence of lifestyle-related chronic disease among older adults are also found to have the highest rates of international or internal out-migration. This paper investigates the association between having migrant (adult) children and older parents' lifestyle-related chronic disease in India. Bi-variate and multivariate analysis are conducted using data from a representative sample of 9507 adults aged 60 and older in seven Indian states from the UNFPA project 'Building Knowledge Base on Ageing in India'. The results show that for any of the diagnosed conditions of hypertension, diabetes and heart disease, the prevalence among older people with a migrant son is higher than among those without. More specifically, the odds ratio of reporting a lifestyle related chronic disease is higher among older adults with at least one adult son living in another district, State or outside India than those with their children living closer. This study contributes empirical evidence to the academic and policy debate about the consequences of globalization and urbanization for older people's health status generally, and particularly their risk for reporting chronic diseases that relate to changes in their lifestyle. PMID- 29349229 TI - Does gender inequity increase men's mortality risk in the United States? A multilevel analysis of data from the National Longitudinal Mortality Study. AB - A number of theoretical approaches suggest that gender inequity may give rise to health risks for men. This study undertook a multilevel analysis to ascertain if state-level measures of gender inequity are predictors of men's mortality in the United States. Data for the analysis were taken primarily from the National Longitudinal Mortality Study, which is based on a random sample of the non institutionalised population. The full data set included 174,703 individuals nested within 50 states and had a six-year follow-up for mortality. Gender inequity was measured by nine variables: higher education, reproductive rights, abortion provider access, elected office, management, business ownership, labour force participation, earnings and relative poverty. Covariates at the individual level were age, income, education, race/ethnicity, marital status and employment status. Covariates at the state level were income inequality and per capita gross domestic product. The results of logistic multilevel modelling showed a number of measures of state-level gender inequity were significantly associated with men's mortality. In all of these cases greater gender inequity was associated with an increased mortality risk. In fully adjusted models for all-age adult men the elected office (OR 1.05 95% CI 1.01-1.09), business ownership (OR 1.04 95% CI 1.01-1.08), earnings (OR 1.04 95% CI 1.01-1.08) and relative poverty (OR 1.07 95% CI 1.03-1.10) measures all showed statistically significant effects for each 1 standard deviation increase in the gender inequity z-score. Similar effects were seen for working-age men. In older men (65+ years) only the earnings and relative poverty measures were statistically significant. This study provides evidence that gender inequity may increase men's health risks. The effect sizes while small are large enough across the range of gender inequity identified to have important population health implications. PMID- 29349230 TI - Education, race/ethnicity, and multimorbidity among adults aged 30-64 in the National Health Interview Survey. AB - Background: Demographic risk factors for multimorbidity have been identified in numerous population-based studies of older adults; however, there is less data on younger populations, despite the fact that approximately 24% of US adults age 18+ have multimorbidity. Understanding multimorbidity earlier in the life course is critical because of the increased likelihood of long-term disability and loss of productivity associated with chronic disease progression. Objective: To examine the associations of education and race/ethnicity with mutimorbidity among adults aged 30-64 using cross-sectional data from the 2002-2014 National Health Interview Surveys. Design: Multimorbidity was defined as having at least 2 of 9 self-reported health conditions. Educational attainment was categorized as less than high school (HS), completed HS or some college, and bachelor's degree or higher. Logistic regression models of multimorbidity controlled for time since last doctor's visit, demographic and socioeconomic measures. Results: Compared to having a bachelor's degree or higher, completing less than HS (OR=1.58, 95% CI = 1.50-1.66) or HS/some college (OR=1.32, 95% CI = 1.27-1.37) were both associated with increased odds of multimorbidity net of all included covariates. Non Hispanic Blacks had greater odds of multimorbidity (OR=1.07, 95% CI = 1.02-1.11) compared to Non-Hispanic Whites with comparable characteristics. Conclusions: Epidemiologic and demographic research on the burden of multimorbidity among non elderly adults is limited, but warrants renewed attention given the potential for long-term loss of quality of life, productivity, and well-being for non-elderly adults. Reducing multimorbidity through health promotion efforts across the socioeconomic spectrum and earlier in the life course will be a requirement to age successfully and support overall well-being in the aging US population. PMID- 29349231 TI - Improving population health by reducing poverty: New York's Earned Income Tax Credit. AB - Despite the established relationship between adverse health outcomes and low socioeconomic status, researchers rarely test the link between health improvements and poverty-alleviating economic policies. New research, however, links individual-level health improvements to the Earned Income Tax Credit (EITC), a broad-based income support policy. We build on these findings by examining whether the EITC has ecological, neighborhood-level health effects. We use a difference-in-difference analysis to measure child health outcomes in 90 low- and middle- income neighborhoods before and after the expansion of New York State and New York City's EITC policy between 1997-2010. Our study takes advantage of the relatively exogenous source of income variation supplied by the EITC-legislative changes to EITC policy parameters. This feature minimizes the endogeneity problem in studying the relationship between income and health. Our estimates link a 15-percentage-point increase in EITC benefit rates to a 0.45 percentage-point reduction in the low birthweight rate. We do not observe any measurable link between EITC benefits and prenatal health or asthma-related pediatric hospitalization. The magnitude of the EITC's impact on low birthweight rates suggests ecological effects, and an additional channel through which anti poverty measures can serve as public health interventions. PMID- 29349232 TI - Health and well-being at work: The key role of supervisor support. AB - This study aims to explore whether and in what way social support from different sources and domains makes an additional or different and independent contribution to various health and work-related outcomes. Cross-sectional data were used from an employee survey among the workforces of four service companies from different industries in Switzerland. The study sample covered 5,877 employees of working age. The lack of social support from a spouse, relatives, friends, direct supervisors, closest colleagues at work and other co-workers in case of problems at work and at home were assessed and studied individually and jointly as risk factors with respect to a total number of eight outcomes. Health-related outcomes covered poor self-rated health, musculoskeletal disorders, stress feelings and burnout symptoms. Work-related outcomes included feeling overwhelmed at work, difficulty with switching off after work, job dissatisfaction and intention to turnover. Social support from multiple sources in contrast to only individual sources in both life domains was found to be more frequent in women than in men and proved to be most protective and beneficial with regard to health and well being at work. However, after mutual adjustment of all single sources of social support from both domains, a lack of supervisor support turned out to be the only or the strongest of the few remaining support measures and statistically significant risk factors for the studied outcomes throughout and by far. Being unable to count on the support of a direct supervisor in case of problems at work and even at home was shown to involve a substantially increased risk of poor health and work-related outcomes (aOR = up to 3.8). Multiple sources of social support, and particularly supervisor support, seem to be important resources of health and well-being at work and need to be considered as key factors in workplace health promotion. PMID- 29349233 TI - Associations between household educational attainment and adolescent positive mental health in Canada. AB - Investigating the determinants of positive mental health, as opposed to focusing on mental illness, is a new research direction with important implications for population health promotion. Past research suggests that mental health develops in early childhood and that social factors including highest household educational attainment may play an important role. The current study examined the association between household educational attainment and adolescent self-reported positive mental health in a nationally representative Canadian sample using data from the 2011-12 Canadian Community Health Survey. The sample included 10,091 adolescents aged 12 to19 living at home with at least one parent. Household educational attainment was obtained from a Statistics Canada derived variable documenting the highest level of education in the household. Adolescent positive mental health was assessed using the Mental Health Continuum scale. Multivariable logistic regression analyses showed that after adjusting for household income, single parent status, and household size, adolescents had lower odds of experiencing positive mental health in households in which attempted but not completed post-secondary was the highest education level compared to completed post-secondary education (OR = 0.64, 95% CI = 0.44, 0.95). This association was strongest in adolescents aged 12 to14 (OR = 0.43, 95% CI = 0.21, 0.84) and females (OR = 0.50, 95% CI = 0.29, 0.88). Contrary to expectations, we did not find an incremental increasing association between adolescent positive mental health and household educational attainment. Instead, results suggested that common underlying factors may have contributed both to uncompleted post-secondary education in the household and adolescents' diminished positive mental health. PMID- 29349234 TI - Adult health returns to education by key childhood social and economic indicators: Results from representative European data. AB - In the United States, associations between attained education and adult health typically are larger for those from disadvantaged childhood backgrounds. However, it remains unclear how specific key childhood indicators contribute to these adult health patterns, especially outside the United States. Drawing on the 2014 European Social Survey (20 countries; N=31544), we investigate the key childhood and adolescent indicators of parental education, childhood financial strain, and any serious household conflict growing up, given how these early exposures are known to correlate strongly with both educational attainment and adult health. In regressions with country fixed effects, we find across Europe that higher levels of education are more strongly linked to lessened adult depressive symptoms when childhood disadvantage is present in terms of lower levels of parental education or higher childhood financial strain specifically. However, adjusted predictions reveal that childhood financial strain contributes to this heterogeneity in educational returns far more strongly than parental education. For self-rated health, only childhood financial strain enhances estimated educational health benefits when considering all key childhood social and economic factors jointly. Similarly, childhood financial strain in particular enhances educational protection against overall rates of disease in adulthood. Overall, our findings support prior work on United States data revealing higher educational health returns given childhood disadvantage. At the same time, our findings across three distinct adult health indicators suggest the particular importance of childhood financial strain to understanding heterogeneity in educational health returns. PMID- 29349235 TI - Social pathways to health: On the mediating role of the social network in the relation between socio-economic position and health. AB - Good health is one of the key qualities of life, but opportunities to be and remain healthy are unequally distributed across socio-economic groups. The beneficial health effects of the social network are well known. However, research on the social network as potential mediator in the pathway from socio-economic position (SEP) to health is scarce, while there are good reasons to expect a socio-economical patterning of networks. We aim to contribute to our understanding of socio-economic inequalities in health by examining the mediating role of structural and functional characteristics of the social network in the SEP-health relationship. Data were from the second wave of the Norwegian study on the life course, aging and generation study (NorLAG) and comprised 4534 men and 4690 women aged between 40 and 81. We applied multiple mediation models to evaluate the relative importance of each network characteristic, and multiple group analysis to examine differences between middle-aged and older men and women. Our results indicated a clear socio-economical patterning of the social network for men and women. People with higher SEP had social networks that better protect against loneliness, which in turn lead to better health outcomes. The explained variance in health in older people by the social network and SEP was only half of the explained variance observed in middle-aged people, suggesting that other factors than SEP were more important for health when people age. We conclude that it is the function of the network, rather than the structure, that counts for health. PMID- 29349236 TI - The prevalence and correlates of suicidal behaviours (ideation, plan and attempt) among adolescents in senior high schools in Ghana. AB - Suicide is recognised as the third leading cause of death among adolescents globally. There is however limited data on the prevalence and factors associated with suicide particularly in Ghana. To explore the prevalence and risk and protective factors associated with suicide in Ghana, a nationwide Global School based Student Health Survey data collected among senior high school adolescents in Ghana was used. The prevalence of suicidal behaviours was 18.2%, 22.5% and 22.2% for suicidal ideation, suicidal plan and suicidal attempt respectively. In the final analysis, anxiety increases the odds of suicidal behaviour, even after controlling for other variables. Loneliness increases the odds of suicidal behaviour but after adjusting for other factors the odds remained for only suicidal plan. Being bullied, physically attacked, involved in a physical fight and food insecurity remained risk factors for suicidal behaviour (i.e. ideation, plan and attempt) after adjusting for other factors. Truancy was found as a risk factor for both suicidal ideation and plans but such effect diminished for suicidal plan after adjusting for other variables. Increasing number of close friends remained a risk factor for both suicidal plan and attempt but such effect diminished for suicidal ideation after adjusting for other variables. Parental understanding of adolescents' problems and worries remained a significant protective factor for all the indices of suicidal behaviour after adjusting for other variables. Parental respect for privacy was protective of suicidal attempt but was not significant after adjusting for other variables. Early identification and intervention for at-risk adolescents in senior high schools, for example those experiencing different forms of physical abuse, drug and substance use and hunger can potentially reduce the prevalence of suicide among this population in Ghana. PMID- 29349237 TI - Social capital and pet ownership - A tale of four cities. AB - *Pet ownership is significantly associated with higher levels of social capital.*Social capital was associated with pet ownership in the U.S. and Australia.*Results are not confined to dog owners nor dog walkers.*Pets are an under-recognized conduit for building social capital. PMID- 29349238 TI - Engagement with health care providers as a mediator between social capital and quality of life among a sample of people living with HIV in the United States: Path-analysis. AB - Background: Social capital is "features of social organizations-networks, norms, and as trust that facilitate coordination and cooperation for mutual benefit". People with high social capital have lower mortality and better health outcomes. Although utilization of social networks has grown, social capital continues to be a complex concept in relation to health promotion. This study examined 1) associations between social capital and quality of life (QoL), 2) factors of social capital leading to higher QoL among people living with HIV (PLWH), 3) role of health care providers (HCP) as a mediator between social capital and QoL. Methods: This is a secondary analysis of the International Nursing HIV Network for HIV/AIDS Research. This cross-sectional study included 1673 PLWH from 11 research sites in the United States in 2010. Using path analysis, we examined the independent effect of social capital on QoL, and the mediating effect of PLWH engagement with HCP. Results: The majority of participants were male (71.2%), and 45.7% were African American. Eighty-nine percent of the participants were on antiretroviral therapy. Social capital consisted of three factors - social connection, tolerance toward diversity, and community participation - explaining 87% of variance of social capital. Path analysis (RMSEA = 0, CFI = 1) found that social connection, followed by tolerance toward diversity, were the principal domain of social capital leading to better QoL (std. beta = 0.50, std. error = 0.64, p<.05). Social capital was positively associated with QoL (p<.05). About 11% of the protective effect of social capital on QoL was mediated by engagement with HCP (p<.05). Conclusions: This study emphasizes importance of social connections and mediating role of HCP in improving QoL for PLWH. To develop social capital effectively, interventions should focus on strengthening PLWH's social connections and engagement to HCP. PMID- 29349239 TI - The household food insecurity gradient and potential reductions in adverse population mental health outcomes in Canadian adults. AB - Purpose: Household food insecurity is related to poor mental health. This study examines whether the level of household food insecurity is associated with a gradient in the risk of reporting six adverse mental health outcomes. This study further quantifies the mental health impact if severe food insecurity, the extreme of the risk continuum, were eliminated in Canada. Methods: Using a pooled sample of the Canadian Community Health Survey (N = 302,683), we examined the relationship between level of food insecurity, in adults 18-64 years, and reporting six adverse mental health outcomes. We conducted a probit analysis adjusted for multi-variable models, to calculate the reduction in the odds of reporting mental health outcomes that might accrue from the elimination of severe food insecurity. Results: Controlling for various demographic and socioeconomic covariates, a food insecurity gradient was found in six mental health outcomes. We calculated that a decrease between 8.1% and 16.0% in the reporting of these mental health outcomes would accrue if those who are currently severely food insecure became food secure, after controlling for covariates. Conclusion: Household food insecurity has a pervasive graded negative effect on a variety of mental health outcomes, in which significantly higher levels of food insecurity are associated with a higher risk of adverse mental health outcomes. Reduction of food insecurity, particularly at the severe level, is a public health concern and a modifiable structural determinant of health worthy of macro-level policy intervention. PMID- 29349240 TI - Explaining racial/ethnic differences in all-cause mortality in the Multi-Ethnic Study of Atherosclerosis (MESA): Substantive complexity and hazardous working conditions as mediating factors. AB - Research on racial/ethnic health disparities and socioeconomic position has not fully considered occupation. However, because occupations are racially patterned, certain occupational characteristics may explain racial/ethnic difference in health. This study examines the role of occupational characteristics in racial/ethnic disparities in all-cause mortality. Data are from a U.S. community based cohort study (n=6342, median follow-up: 12.2 years), in which 893 deaths (14.1%) occurred. We estimated mortality hazard ratios (HRs) for African Americans, Hispanics, and Chinese Americans compared with whites. We also estimated the proportion of the HR mediated by each of two occupational characteristics, substantive complexity of work (e.g., problem solving, inductive/deductive reasoning on the job) and hazardous conditions (e.g., noise, extreme temperature, chemicals), derived from the Occupational Information Network database (O*NET). Analyses were adjusted for age, sex, nativity, working status at baseline, and study sites. African Americans had a higher rate of all cause death (HR 1.41; 95% confidence interval [CI]: 1.19-1.66) than whites. Chinese-American ethnicity was protective (HR 0.59, CI: 0.40-0.85); Hispanic ethnicity was not significantly different from whites (HR 0.88; CI: 0.67-1.17). Substantive complexity of work mediated 30% of the higher rate of death for African Americans compared with whites. For other groups, mediation was not significant. Hazardous conditions did not significantly mediate mortality in any racial/ethnic group. Lower levels of substantive complexity of work mediate a substantial part of the health disadvantage in African Americans. This job characteristic may be an important factor in explaining racial health disparities. PMID- 29349241 TI - Simultaneous evaluation of physical and social environmental correlates of physical activity in adults: A systematic review. AB - Background: Ecological models of physical activity posit that social and physical environmental features exert independent and interactive influences on physical activity, but previous research has focussed on independent influences. This systematic review aimed to synthesise the literature investigating how features of neighbourhood physical and social environments are associated with physical activity when both levels of influence are simultaneously considered, and to assess progress in the exploration of interactive effects of social and physical environmental correlates on physical activity. Methods: A systematic literature search was conducted in February 2016. Articles were included if they used an adult (>=15 years) sample, simultaneously considered at least one physical and one social environmental characteristic in a single statistical model, used self reported or objectively-measured physical activity as a primary outcome, reported findings from quantitative, observational analyses and were published in a peer reviewed journal. Combined measures including social and physical environment items were excluded as they didn't permit investigation of independent and interactive social and physical effects. Forty-six studies were identified. Results: An inconsistent evidence base for independent environmental correlates of physical activity was revealed, with some support for specific physical and social environment correlates. Most studies found significant associations between physical activity and both physical and social environmental variables. There was preliminary evidence that physical and social environmental variables had interactive effects on activity, although only 4 studies examined interactive effects. Conclusions: Inconsistent evidence of independent associations between environmental variables and physical activity could be partly due to unmeasured effect modification (e.g. interactive effects) creating unaccounted variance in relationships between the environment and activity. Results supported multiple levels of environmental influence on physical activity. It is recommended that further research uses simultaneous or interaction analyses to gain insight into complex relationships between neighbourhood social and physical environments and physical activity, as there is currently limited research in this area. PMID- 29349242 TI - The negative effects on mental health of being in a non-desired occupation in an increasingly precarious labour market. AB - Precarious employment has been associated with poor mental health. Moreover, increasing labour market precariousness may cause individuals to feel 'locked in', in non-desired workplaces or occupations, out of fear of not finding a new employment. This could be experienced as a 'loss of control', with similar negative health consequences. It is plausible that the extent to which being in a non-desired occupation (NDO) or being in precarious employment (PE) has a negative impact on mental health differs according to age group. We tested this hypothesis using data from 2331 persons, 18-34, 35-44, and 45-54 years old, who answered questionnaires in 1999/2000, 2005, and 2010. Incidence rate ratios (IRR) were calculated for poor mental health (GHQ-12) in 2010, after exposure to NDO and PE in 1999/2000 or 2005. NDO and PE were more common in the youngest age group, and they were both associated with poor mental health. In the middle age group the impact of NDO was null, while in contrast the IRR for PE was 1.7 (95% CI: 1.3-2.3) after full adjustment. The pattern was completely the opposite in the oldest age group (adjusted IRR for NDO 1.6 (1.1-2.4) and for PE 0.9 (0.6 1.4)). The population attributable fraction of poor mental health was 14.2% and 11.6%, respectively, for NDO in the youngest and oldest age group, and 17.2% for PE in the middle age group. While the consequences of PE have been widely discussed, those of NDO have not received attention. Interventions aimed at adapting work situations for older individuals and facilitating conditions of job change in such a way as to avoid risking unemployment or precarious employment situations may lead to improved mental health in this age group. PMID- 29349243 TI - Women's television watching and reproductive health behavior in Bangladesh. AB - Bangladesh has made significant social, economic, and health progress in recent decades, yet many reproductive health indicators remain weak. Access to television (TV) is increasing rapidly and provides a potential mechanism for influencing health behavior. We present a conceptual framework for the influence of different types of TV exposure on individual's aspirations and health behavior through the mechanisms of observational learning and ideational change. We analyze data from two large national surveys conducted in 2010 and 2011 to examine the association between women's TV watching and five reproductive health behaviors controlling for the effects of observed confounders. We find that TV watchers are significantly more likely to desire fewer children, are more likely to use contraceptives, and are less likely to have a birth in the two years before the survey. They are more likely to seek at least four antenatal care visits and to utilize a skilled birth attendant. Consequently, continued increase in the reach of TV and associated growth in TV viewing is potentially an important driver of health behaviors in the country. PMID- 29349244 TI - Trends in social inequality in physical inactivity among Danish adolescents 1991 2014. AB - The aim of this study was to investigate social inequality in physical inactivity among adolescents from 1991 to 2014 and to describe any changes in inequality during this period. The analyses were based on data from the Danish part of the HBSC study, which consists of seven comparable cross-sectional studies of nationally representative samples of 11-15-year old adolescents. The available data consisted of weekly time (hours) spent on vigorous physical activity and parental occupation from 30,974 participants. In summary, 8.0% of the adolescents reported to be physically inactive, i.e. spend zero hours of vigorous leisure time physical activity per week. The proportion of physically inactive adolescents was 5.4% in high social class and 7.8% and 10.8%, respectively, in middle and low social class. The absolute social inequality measured as prevalence difference between low and high social class did not change systematically across the observation period from 1991 to 2014. Compared to high social class, OR (95% CI) for physical inactivity was 1.48 (1.32-1.65) in middle social class and 2.18 (1.92-2.47) in lower social class. This relative social inequality was similar in the seven data collection waves (p=0.971). Although the gap in physical inactivity between social classes does not seem to be widening in Danish adolescents, there are still considerable differences in the activity levels between high, middle and low social class adolescents. Consequently, there is a need for a targeted physical activity intervention among adolescents from low (and middle) social class. PMID- 29349245 TI - Mental health of sub-saharan african migrants: The gendered role of migration paths and transnational ties. AB - In Europe, migrants are at higher risk of common mental disorders or psychological distress than are natives. Little is known regarding the social determinants of migrant mental health, particularly the roles played by migration conditions and transnational practices, which may manifest themselves in different ways for men and for women. The goal of this paper was to understand the gendered roles of migration paths and transnational ties in mental health among sub-Saharan African migrants residing in the Paris, France, metropolitan area. This study used data from the Parcours study conducted in 2012-2013, which employed a life-event approach to collect data from a representative sample of migrants who visited healthcare facilities (n = 2468). We measured anxiety and depressive symptoms at the time of data collection with the Patient Health Questionnaire-4 (PHQ-4). Reasons for migration, the living conditions in the host country and transnational ties after migration were taken into account by sex and after adjustment. Our study demonstrates that among sub-Saharan African migrants, mental health is related to the migratory path and the migrant's situation in the host country but differently for women and men. Among women, anxiety and depressive symptoms were strongly related to having left one's home country because of threats to one's life. Among men, residing illegally in the host country was related to impaired mental health. For both women and men, cross border separation from a child less than 18 years old was not independently associated with anxiety and depressive symptoms. In addition, social and emotional support from relatives and friends-both from the society of origin and of destination-were associated with lower anxiety and depressive symptoms. Migrant mental health may be impaired in the current context of anti-migrant policies and an anti-immigrant social environment in Europe. PMID- 29349246 TI - Feasibility of a novel participatory multi-sector continuous improvement approach to enhance food security in remote Indigenous Australian communities. AB - Background: Food insecurity underlies and compounds many of the development issues faced by remote Indigenous communities in Australia. Multi-sector approaches offer promise to improve food security. We assessed the feasibility of a novel multi-sector approach to enhance community food security in remote Indigenous Australia. Method: A longitudinal comparative multi-site case study, the Good Food Systems Good Food for All Project, was conducted (2009-2013) with four Aboriginal communities. Continuous improvement meetings were held in each community. Data from project documents and store sales were used to assess feasibility according to engagement, uptake and sustainability of action, and impact on community diet, as well as identifying conditions facilitating or hindering these. Results: Engagement was established where: the community perceived a need for the approach; where trust was developed between the community and facilitators; where there was community stability; and where flexibility was applied in the timing of meetings. The approach enabled stakeholders in each community to collectively appraise the community food system and plan action. Actions that could be directly implemented within available resources resulted from developing collaborative capacity. Actions requiring advocacy, multi-sectoral involvement, commitment or further resources were less frequently used. Positive shifts in community diet were associated with key areas where actions were implemented. Conclusion: A multi-sector participatory approach seeking continuous improvement engaged committed Aboriginal and non-Aboriginal stakeholders and was shown to have potential to shift community diet. Provision of clear mechanisms to link this approach with higher level policy and decision making structures, clarity of roles and responsibilities, and processes to prioritise and communicate actions across sectors should further strengthen capacity for food security improvement. Integrating this approach enabling local decision-making into community governance structures with adequate resourcing is an imperative. PMID- 29349247 TI - Incorporating biomarkers into the study of socio-economic status and health among older adults in China. AB - The social gradient in health - that individuals with lower SES have worse health than those with higher SES- is welldocumented using self-reports of health in more developed countries. Less is known about the relationship between SES and health biomarkers among older adults residing in less developed countries. We use data from the ChineseLongitudinal Healthy Longevity Survey (CLHLS) longevity areas sub-sample to examine the social gradient in healthamong rural young-old and oldest-old adults (N=2,121). Our health indicators include individual biomarkers, metabolic syndrome, and self-reports of health. We found a largely positive relationship between SES and health. SES was more consistently associated with individual biomarkers among the oldest-old than the young-old, providing evidence for cumulative disadvantage. We discuss the implications of our findings for older adults who have lived through different social, economic, and health regimes. PMID- 29349248 TI - Association of financial hardship with poor sleep health outcomes among men who have sex with men. AB - Previous studies have identified an association between socioeconomic status and sleep health. While some research has studied this association among sexual minority groups, including men who have sex with men (MSM), they exclusively focused on US-based populations. The interplay between the two in shaping sleep health has not been previously examined on populations residing outside the US. This study considers both determinants, by investigating whether financial hardship is associated with sleep health among a sample of MSM in Paris, France. Broadcast advertisements were placed on a popular geosocial-networking smartphone application for MSM to direct users in Paris to a web-based survey measuring financial hardship and five dimensions of sleep health as well as socio demographic characteristics. Modified Poisson models with robust error variance were computed to estimate risk ratios (RRs) and 95% confidence intervals (CI) for the associations between financial hardship and the following self-reported outcomes: 1) poor sleep quality, 2) short sleep duration; and 3) sleep problems. In total, 580 respondents completed the survey. In this sample, both financial hardship and poor sleep health were common - 45.5% reported that it was extremely, very, or somewhat difficult for them to meet their monthly payments on bills (referred to as "high financial hardship") and 30.1% rated their sleep as fairly bad or very bad (referred to as "poor sleep quality"). Multivariate models revealed that, compared to participants who reported low financial hardship, those who reported high financial hardship were more likely to report poor sleep quality (aRR: 1.35, 95% CI: 1.04, 1.77), to report problems falling asleep (aRR: 1.23, 95% CI: 1.02, 1.49), and to report problems staying awake in the daytime (aRR: 3.12, 95% CI: 1.83, 5.31). Future research should investigate whether this relationship is causal and determine whether interventions to reduce financial hardships could promote sleep health among MSM. PMID- 29349249 TI - The differential effects of rural health care access on race-specific mortality. AB - We examined the relationship between race-specific rural mortality and the health infrastructure of rural counties in light of America's recent emergence of a rural mortality penalty. Using the Compressed Mortality File from National Center for Health Statistics (2008-2012) and county-level demographic, socioeconomic, and health care indicators from the Area Health Resource File and the US Census, we created a rural public health infrastructure index which encompasses four types of health care access (public health employees, critical access hospital/rural referral centers, rural health clinics, and emergency departments) within counties. We found that each unit increase in the index is associated with a decline in rural Black mortality, but is associated with an increase in rural White mortality. Policymakers could benefit from focusing on the declining rate of mortality improvement in many rural regions, specifically by trying to better understand how decisions concerning public health spending may influence mortality differently for Black and White residents. PMID- 29349250 TI - Best-worst scaling survey of preferences regarding the adverse effects of tobacco use in China. AB - We use best-worst scaling to assess two types of concern levels of the adverse consequences of smoking in China. While the smoking cessation policy has worked well in Taiwan, more than 1 million people in mainland China are estimated to die every year from tobacco use. This study compares the preferences of Chinese individuals in the two jurisdictions (mainland versus Taiwan) and explores the possibility of information-based interventions. The relative importance of 13 adverse effects was assessed by conducting a web-based survey on a sample of 480 Chinese participants. The 13 items consist of various adverse effects of tobacco use: from long-term health risk, such as lung cancer and cardiovascular diseases, to reduction of physical capacity and sexual dysfunction, and disturbance to non smokers. The resulting data suggest possible strategies to curb smoking. Subgroup analysis, focusing on gender, smoking status, and nicotine dependence, was also conducted. Lung cancer, cardiovascular diseases, and chronic obstructive pulmonary disease, in this order, rank highest for both types of respondents. On the other hand, high expenditures (13th) and weight gain after cessation (12th) are the lowest ranked for both. Measuring individual best-worst scores reveals substantial heterogeneity among respondents and that information-based intervention can help curb smoking. PMID- 29349251 TI - Undiagnosed depression: A community diagnosis. AB - Many large provider networks are investing heavily in preventing disease within the communities that they serve. We explore the potential benefits and challenges associated with tackling depression at the community level using a unique dataset designed for one such provider network. The economic costs of having depression (increased medical care use, lower quality of life, and decreased workplace productivity) are among the highest of any disease. Depression often goes undiagnosed, yet many believe that depression can be treated or prevented altogether. We explore the prevalence, distribution, economic burden, and the psychosocial and economic factors associated with undiagnosed depression in a lower-income neighborhood in northern Manhattan. Even using state-of-the art data to "diagnose" the risk factors within a community, it can be challenging for provider networks to act against such risk factors. PMID- 29349252 TI - Wealth, justice and freedom: Objective and subjective measures predicting poor mental health in a study across eight countries. AB - Background: Macro-level factors (MF) such as wealth, justice and freedom measured with objective country-level indicators (objective MF), for instance the Gross Domestic Product (GDP), have been investigated in relation to health and well being, but rarely in connection with depression, anxiety and stress subsumed as poor mental health. Also, a combination of different objective MF and of how individuals perceive those MF (subjective MF) has not been taken into consideration. In the present study, we combined subjective and objective measures of wealth, justice and freedom and examined their relationship with poor mental health. Method: Population-based interviews were conducted in France, Germany, Poland, Russia, Spain, Sweden, U.K. and U.S.A. (n ~ 1000 per country). GDP, GINI coefficient, Justice Index and Freedom Index were used as objective MF, whereas subjective MF were perceived wealth, justice and freedom measured at the individual level. Poor mental health was assessed as a combination of symptoms of depression, anxiety and stress. Results: In a random-intercept-model, GINI coefficient and Freedom Index were significant positive country-level, and perceived wealth, justice, and freedom significant negative individual-level predictors of symptoms of poor mental health. Conclusion: Multiple subjective and objective MF should be combined to assess the macrosystem's relationship with poor mental health more precisely. The relationship between MF and poor mental health indicates that the macrosystem should be taken into account as relevant context for mental health problems, too. PMID- 29349253 TI - Recreational marijuana legalization and college student use: Early evidence. AB - We analyze marijuana use by college undergraduates before and after legalization of recreational marijuana. Using survey data from the National College Health Assessment, we show that students at Washington State University experienced a significant increase in marijuana use after legalization. This increase is larger than would be predicted by national trends. The change is strongest among females, Black students, and Hispanic students. The increase for underage students is as much as for legal-age students. We find no corresponding changes in the consumption of tobacco, alcohol, or other drugs. PMID- 29349254 TI - Prevalence of psychological distress and its association with socio-demographic and HIV-risk factors in South Africa: Findings of the 2012 HIV prevalence, incidence and behaviour survey. AB - Background: In South Africa, there are limited nationally representative data on the prevalence and factors associated with psychological distress. This study used a 2012 nationally representative population-based household survey to investigate factors associated with psychological distress in South Africa. Methods: The survey is based on a multistage stratified cross-sectional design. Univariate and multivariate logistic regression models were fitted to identify factors associated with psychological distress. Results: Out of a total 25860 participants, 23.9% reported psychological distress. Higher likelihood of reporting psychological distress was significantly associated with being female [OR = 1.68 (95% CI: 1.34-2.10), p < 0.001], aged 25 to 49 years [OR = 1.35 (95% CI: 1.08-1.70), p = 0.010] and 50 years and older [OR = 1.44 (95% CI: 1.06-1.97), p = 0.023)], Black Africans [OR = 1.61 (95% CI: 1.24-2.10), p < 0.001)], a high risk drinker [OR = 1.37 (95% CI: 1.02-1.83), p = 0.037], a hazardous drinker [OR = 4.76 (95% CI: 2.69-8.42), p < 0.001] and HIV positive, [OR = 1.79 (95% CI:1.55 2.08) p < 0.001], while lower likelihood of reporting psychological distress was significantly associated with being married [OR = 0.78 (95% CI: 0.62-0.98), p = 0.031), employed [OR = 0.71 (95% CI: 0.57-0.88), p = 0.002], and living in a rural formal area [OR = 0.73 (95% CI: 0.55-0.97), p = 0.033]. Conclusion: There is a need to develop strategies to alleviate psychological distress in the general population, with a particular focus on those who may be more vulnerable to distress such as females, the aged, excessive alcohol users, the unemployed, people living with HIV and those residing in urban areas as identified in the current findings. PMID- 29349255 TI - Gender-specific associations between involvement in team sport culture and canadian adolescents' substance-use behavior. AB - Canadian adolescents have some of the highest rates of substance use in the world. The etiology of this phenomenon has not been fully explored, and one possible contextual determinant is involvement in sport activities that foster risk-taking behaviors through physical and social mechanisms. Using the 2013-14 Health Behaviour in School Aged Children (HBSC) study we therefore examined this hypothesis in a contemporary national sample of Canadian adolescents. The strength and direction of the relationship between sport and substance use varied by gender and substance, with team sport participation associated with increased binge drinking (RR 1.33 [95% CI 1.13-1.56] for boys, RR 1.21 [1.06-1.38] for girls) and use of smokeless tobacco (RR 1.68 [1.34-2.10] for boys, RR 1.32 [1.01 1.72] for girls), but with lower prevalence levels of cannabis use (RR 0.73 [95% CI 0.61-0.88]) and cigarette smoking (RR 0.79 [95% CI 0.70-0.89]) in girls alone. We also compared team sport athletes with high social involvement (sports team as primary peer group) and physical involvement (higher number of days/week physically active) to those with low involvement. For boys, the combination of high physical and high social involvement was associated with the highest risk, while high social involvement alone was associated with the greatest risk for girls. While team sport participation confers only a small increased risk for substance use, the prevalence of sport participation results in a large population impact. Given this fact, interventions such as education for parents and coaches and policies encouraging engagement in a variety of extracurricular activities should be explored. PMID- 29349256 TI - Income and the mental health of Canadian mothers: Evidence from the Universal Child Care Benefit. AB - The Universal Child Care Benefit, introduced in 2006, was an income transfer for Canadian families with young children. I exploit this exogenous increase in income to answer the following questions: (1) Is there a relationship between income and mental health among Canadian mothers? (2) Is it corroborated by other measures of well-being (i.e. stress, life satisfaction)? (3) Is the effect different for lone mothers compared to those in two-parent families? I answer these questions using a difference-in-differences model and microdata from the Canadian Community Health Survey, 2003 to 2008. The estimating sample includes 26,886 mothers, 6273 of whom are lone parents. I find the income transfer improved mental health and life satisfaction regardless of family structure, albeit not necessarily for a given individual. Rather, average scores were higher for mothers with young children after implementation of the Universal Child Care Benefit. For example, they were more likely to report 'excellent' mental health and less likely to be in each of the other categories. The transfer also reduced stress among lone mothers with young children. Specifically, they were less likely to be 'quite a bit' or 'extremely' stressed on a daily basis, and more likely to be 'not at all' or 'not very' stressed. I argue that assumptions of the model are plausible and show that results are consistent across several robustness checks. PMID- 29349257 TI - The tyranny of the averages and the indiscriminate use of risk factors in public health: The case of coronary heart disease. AB - Modern medicine is overwhelmed by a plethora of both established risk factors and novel biomarkers for diseases. The majority of this information is expressed by probabilistic measures of association such as the odds ratio (OR) obtained by calculating differences in average "risk" between exposed and unexposed groups. However, recent research demonstrates that even ORs of considerable magnitude are insufficient for assessing the ability of risk factors or biomarkers to distinguish the individuals who will develop the disease from those who will not. In regards to coronary heart disease (CHD), we already know that novel biomarkers add very little to the discriminatory accuracy (DA) of traditional risk factors. However, the value added by traditional risk factors alongside simple demographic variables such as age and sex has been the subject of less discussion. Moreover, in public health, we use the OR to calculate the population attributable fraction (PAF), although this measure fails to consider the DA of the risk factor it represents. Therefore, focusing on CHD and applying measures of DA, we re-examine the role of individual demographic characteristics, risk factors, novel biomarkers and PAFs in public health and epidemiology. In so doing, we also raise a more general criticism of the traditional risk factors' epidemiology. We investigated a cohort of 6103 men and women who participated in the baseline (1991-1996) of the Malmo Diet and Cancer study and were followed for 18 years. We found that neither traditional risk factors nor biomarkers substantially improved the DA obtained by models considering only age and sex. We concluded that the PAF measure provided insufficient information for the planning of preventive strategies in the population. We need a better understanding of the individual heterogeneity around the averages and, thereby, a fundamental change in the way we interpret risk factors in public health and epidemiology. PMID- 29349258 TI - Neighborhood context and birth outcomes: Going beyond neighborhood disadvantage, incorporating affluence. AB - *Neighborhood affluence protects against the risk of poor birth outcome. *The protective effect of affluence holds for Whites, Blacks, Hispanics and Asians. *Mediation of these pathways by prenatal smoking varies by racial group. *The discourse on neighborhoods and birth outcomes should include affluence. PMID- 29349259 TI - Access and quality of parks and associations with obesity: A cross-sectional study. AB - Public health is increasingly engaging with multi-faceted obesity prevention efforts. Although parks represent key community assets for broader public health, they may not be distributed equitably and associations with obesity are equivocal. We investigated park access and quality relative to deprivation and obesity with individual-level data from the Yorkshire Health Study. Compared to the least deprived areas, the moderately and most deprived areas had a greater park access and park quality in terms of features and amenities. However, parks in the moderately and most deprived areas also had the most safety concerns and incivilities. Although deprivation was associated with obesity, contrary to current policy guidance, both park access and quality appear less important for understanding variations in obesity within this study. Although sub-group analyses by deprivation tertile revealed that low quality park amenities in highly and moderately deprived areas may be important for understanding obesity prevalence, all other associations were non-significant. PMID- 29349260 TI - Environmental radiation level, radiation anxiety, and psychological distress of non-evacuee residents in Fukushima five years after the Great East Japan Earthquake: Multilevel analyses. AB - The present study aimed to clarify the associations among radiation exposure or psychological exposure to the Fukushima nuclear power plant accident (i.e., fear/anxiety immediately after the accident), current radiation anxiety, and psychological distress among non-evacuee community residents in Fukushima five years after the Great East Japan Earthquake, which occurred in March 2011. A questionnaire survey was administered to a random sample of non-evacuee community residents from 49 municipalities of Fukushima prefecture from February to April 2016, and data from 1684 respondents (34.4%) were analyzed. Environmental radiation levels at the time of the accident were ascertained from survey meter data, while environmental radiation levels at the time of the survey were ascertained from monitoring post data. In the questionnaire, immediate fear/anxiety after the accident, current radiation anxiety, and psychological distress were measured using a single-item question, a 7-item scale, and K6, respectively. Multilevel linear or logistic regression models were applied to analyze the determinants of radiation anxiety and psychological distress. The findings showed that environmental radiation levels at the time of the survey were more strongly associated with radiation anxiety than radiation levels immediately after the accident. Disaster-related experiences, such as direct damage, disaster-related family stress, and fear/anxiety after the accident, and demographic characteristics (e.g., younger age, being married, low socioeconomic status) were significantly associated with radiation anxiety. Environmental radiation levels at the time of the accident or survey were not significantly associated with psychological distress. Radiation anxiety largely mediated the association between fear/anxiety after the accident and psychological distress. In addition to environmental radiation levels, respondents' radiation anxiety was affected by multiple factors, such as disaster-related experiences and demographic characteristics. Radiation levels were not associated with psychological distress in non-evacuee community residents. Rather, fear/anxiety after the nuclear power plant accident may be a determinant of psychological distress, mediated by radiation anxiety. PMID- 29349261 TI - The impact of the UK National Minimum Wage on mental health. AB - Despite an emerging literature, there is still sparse and mixed evidence on the wider societal benefits of Minimum Wage policies, including their effects on mental health. Furthermore, causal evidence on the relationship between earnings and mental health is limited. We focus on low-wage earners, who are at higher risk of psychological distress, and exploit the quasi-experiment provided by the introduction of the UK National Minimum Wage (NMW) to identify the causal impact of wage increases on mental health. We employ difference-in-differences models and find that the introduction of the UK NMW had no effect on mental health. Our estimates do not appear to support earlier findings which indicate that minimum wages affect mental health of low-wage earners. A series of robustness checks accounting for measurement error, as well as treatment and control group composition, confirm our main results. Overall, our findings suggest that policies aimed at improving the mental health of low-wage earners should either consider the non-wage characteristics of employment or potentially larger wage increases. PMID- 29349262 TI - Mothers' labor market choices and child development outcomes in Chile. AB - This paper examines associations between labor market participation of Chilean mothers and the cognitive, language, and socio-economic development of their children. Using a nationally-representative sample of 3-year-old children, we test if mothers' work intensity in the two previous years is associated with child development outcomes; data were collected in 2010 when children were one year old, and again in 2012, when they were three years old. We find that children who were three years old with mothers who worked for higher fractions of their children's lives in the previous two years perform significantly better on all tests (cognitive, language, socio-emotional) than children whose mothers had worked less, while controlling for baseline test performance. These main effects did not remain significant with the inclusion of a wide range of socio-economic, demographic control variables, however. Our results were similarly null when using an IV analysis or a propensity score matching approach. We provide descriptive information on theoretical pathways by which maternal work may influence child development. Though several of these pathways (e.g. preschool, toys, maternal stress) seem to be associated with both maternal work and child development outcomes, the pathways are not sufficiently strong to generate an association between maternal work and child development. We conclude that Chilean mothers' employment in early childhood generally does not have an effect on child development. PMID- 29349263 TI - Worldviews and trust of sources for health information on electronic nicotine delivery systems: Effects on risk perceptions and use. AB - Public health agencies, the news media, and the tobacco/vapor industry have issued contradictory statements about the health effects of electronic nicotine delivery systems (ENDS). We investigated the levels of trust that consumers place in different information sources and how trust is associated with cultural worldviews, risk perceptions, ENDS use, and sociodemographic characteristics using a nationally representative sample of 6051 U.S. adults in 2015. Seventeen percent of adults were uncertain about their trust for one or more potential sources. Among the rest, the Centers for Disease Control and Prevention (CDC), health experts, and the Food & Drug Administration (FDA) elicited the highest levels of trust. In contrast, tobacco and vapor manufacturers, vape shop employees, and, to a lesser extent, the news media were distrusted. Adults who had higher incomes and more education or espoused egalitarian and communitarian worldviews expressed more trust in health sources and the FDA, whereas those identifying as non-Hispanic Black or multiracial reported less trust. Current smokers, those who identified as non-Hispanic Black or other race, had lower incomes, and espoused hierarchy and individualism worldviews expressed less distrust toward the tobacco and vapor industry. Greater trust (or less distrust) toward the tobacco and vapor industry and an individualism worldview were associated with perceptions of lower risk of premature death from daily ENDS use, greater uncertainty about those risks, and greater odds of using ENDS. Public health and the FDA should consider consumer trust and worldviews in the design and regulation of public education campaigns regarding the potential health risks and benefits of ENDS. PMID- 29349264 TI - Life course influences on later life health in China: Childhood health exposure and socioeconomic mediators during adulthood. AB - China's unprecedented population aging and social and economic change raise important issues concerning life course determinants of advantage or disadvantage into later life. Data from the China Health and Retirement Longitudinal Study (CHARLS) 2013 were analysed to identify the influence of childhood health on later life health as indicated by self-rated health and how this influence could be mediated by social and economic positions (SEP) and resources later in the life span. CHARLS provides nationally representative data on 18, 000 individuals aged 45 years and above in approximately 150 districts and 450 villages. Both multivariate logit regression model and KHB method (Karlson/Holm/Breen method) were applied to examine and decompose the life span influences on later life health. The results show that the childhood health, accounts for approximately half of the effect directly and another half of the effect indirectly through social and economic variations during adulthood. Relative living standard, marital status and urban residence are the most significant and important social and economic mediators for men; For women, living standard and secondary schooling are most influential while marital status is not significant. Implications for social and economic policies to improve later life health are discussed. PMID- 29349265 TI - Children's migration and chronic illness among older parents 'left behind' in China. AB - The relationship between adult children's migration and the health of their older parents 'left behind' is an emerging research area and existing studies reflect mixed findings. This study aims to investigate the association between having migrant (adult) children and older parents' chronic illness in China, using chronic stomach or other digestive diseases as a proxy. Secondary analysis of the national baseline survey of the 2011 China Health and Retirement Longitudinal Study (CHARLS) was conducted. Analyses were conducted in a total of sample of 6495 individuals aged 60 years and above from 28 out of 31 provinces in China, who had at least one child at the baseline survey. Binary logistic regression was used. The prevalence of any of the diagnosed conditions of chronic stomach or other digestive diseases was higher among older people with a migrant son than among those without (27 percent vs 21 percent, p < 0.001). More specifically, the odds ratio of reporting a disease was higher among older adults with at least one adult son living in another county or province than among those with all their sons living closer (OR = 1.29, 95% CI = 1.10-1.51). The results from this large sample of older adults support the hypothesis that migration of sons significantly increases the risk of chronic stomach and other digestive diseases among 'left behind' elderly parents in contemporary China. PMID- 29349266 TI - Can we determine whether physical limitations are more prevalent in the US than in countries with comparable life expectancy? AB - We evaluate the variability in estimates of self-reported physical limitations by age across four nationally representative surveys in the US. We consider its implications for determining whether, as previous literature suggests, the US estimates reveal limitations at an earlier age than in three countries with similar life expectancy: England, Taiwan, and Costa Rica. Based on cross sectional data from seven population-based surveys, we use local mean smoothing to plot self-reported limitations by age for each of four physical tasks for each survey, stratified by sex. We find substantial variation in the estimates in the US across four nationally-representative surveys. For example, one US survey suggests that American women experience a walking limitation 15 years earlier than their Costa Rican counterparts, while another US survey implies that Americans have a 4-year advantage. Differences in mode of survey may account for higher prevalence of limitations in the one survey that used a self-administered mail-in questionnaire than in the other surveys that used in-person or telephone interviews. Yet, even among US surveys that used the same mode, there is still so much variability in estimates that we cannot conclude whether Americans have better or worse function than their counterparts in the other countries. Seemingly minor differences in question wording and response categories may account for the remaining inconsistency. If minor differences in question wording can result in such extensive variation in the estimates within a given population, then lack of comparability is likely to be an even greater problem when examining results across countries that do not share the same language or culture. Despite the potential utility of self-reported physical function within a survey sample, our findings imply that absolute estimates of population-level prevalence of self-reported physical limitations are unlikely to be strictly comparable across countries-or even across surveys within the same population. PMID- 29349267 TI - Subjective health and well-being: Toward robust cross-cultural comparisons. PMID- 29349269 TI - Fertility behaviors in South Korea and their association with ultrasound prenatal sex screening. AB - Imbalances in the sex ratio at birth in Southeast and East Asia increased especially after the mid-1980s. We study how ultrasonic technology affected sex ratios at birth in South Korea, a country with a strong son preference. Between 1985 and 1995 fetal screenings and abortion services were widely available, though not available in the years before, and prohibited in the years after. Using the 1985, 1995, and 2005 Census microdata, we examine changes in sex ratios of newborns by birth year. We then study periodic effects on the fertility stopping rule, using the 2006 Korean Longitudinal Study of Aging, which provides birth years for all children. Between 1985 and 1995 there was a large increase in the fraction of boy babies at birth orders of three or more. Despite these fractions falling in the subsequent time period when fetal screening became illegal, they remained above plausible biological levels. Supporting earlier findings in the literature, the increase in sex ratios was especially large when prior sibling composition was entirely female. We also find that having only daughters significantly increases the probability of parents having another child, and this effect is greater for parents with any child born after 1985 than the parents with all children born before 1985. There exist significant period effects, suggesting that sex ratios at birth became imbalanced when ultrasound technology became available. The availability of ultrasound technology also influenced parents' fertility decisions, seen especially in parents with only daughters deciding to have another child. Our study provides new evidence for how the availability of ultrasound technology influenced sex ratios at birth and influenced fertility behaviors in Korea. PMID- 29349268 TI - Socioeconomic status indicators and common mental disorders: Evidence from a study of prenatal depression in Pakistan. AB - There is growing interest in the relationship between socioeconomic status (SES), poverty, and mental health in low and middle-income countries (LMIC). However, it is not clear whether a gradient approach focused on a wider SES distribution or a binary poverty approach is more salient for mental health in LMIC. Yet this distinction has implications for interventions aimed at improving population health. We contribute to the literature by examining how multiple indicators of socioeconomic status, including gradient SES and binary poverty indicators, contribute to prenatal depression symptoms in a LMIC context. Prenatal depression is an important public health concern with negative sequela for the mother and her children. We use data on assets, education, food insecurity, debt, and depression symptoms from a sample of 1154 pregnant women residing in rural Pakistan. Women who screened positive for depression participated in a cluster randomized controlled trial of a perinatal depression intervention; all women were interviewed October 2015-February 2016, prior to the start of the intervention. Cluster-specific sampling weights were used to approximate a random sample of pregnant women in the area. Findings indicate that fewer assets, experiencing food insecurity, and having household debt are independently associated with worse depression symptoms. The association with assets is linear with no evidence of a threshold effect, supporting the idea of a gradient in the association between levels of SES and depression symptoms. A gradient was also initially observed with woman's educational attainment, but this association was attenuated once other SES variables were included in the model. Together, the asset, food insecurity, and debt indicators explain 14% of the variance in depression symptoms, more than has been reported in high income country studies. These findings support the use of multiple SES indicators to better elucidate the complex relationship between socioeconomic status and mental health in LMIC. PMID- 29349270 TI - Breaking down the monolith: Understanding flu vaccine uptake among African Americans. AB - Black adults are significantly less likely to be immunized for seasonal influenza when compared to Whites. This persistent disparity contributes to increased influenza-related morbidity and mortality in the African American population. Most scholarship on vaccine disparities has compared Whites and Blacks. Employing Public Health Critical Race Praxis, this study seeks to shift the focus to explore differences within the Black population. Utilizing a nationally representative 2015 survey of US Black adults (n = 806), we explore differences by gender, age, income, and education across vaccine-related measures (e.g., perceived risk, knowledge, attitudes) and racial factors (e.g. racial salience, racial fairness, perceived discrimination). We also explore differences by vaccine behavior in the past five years among those who vaccinate every year, most years but not all, once or twice, and never. Greater frequency of flu vaccine uptake was associated with better self-reported vaccine knowledge, more positive vaccine attitudes, more trust in the flu vaccine and the vaccine process, higher perceived disease risk, lower perceived risk of vaccine side effects, stronger subjective and moral norms, lower general vaccine hesitancy, higher confidence in the flu vaccine, and lower perceived barriers. Logistic regression results highlighted other significant differences among the groups, emphasizing areas to target for improved vaccination rates. We find great diversity within the Black community related to influenza immunization decisions, highlighting the need to "break down the monolith" in future research. PMID- 29349271 TI - Becoming a 'pharmaceutical person': Medication use trajectories from age 26 to 38 in a representative birth cohort from Dunedin, New Zealand. AB - Despite the abundance of medications available for human consumption, and frequent concerns about increasing medicalization or pharmaceuticalization of everyday life, there is little research investigating medicines-use in young and middle-aged populations and discussing the implications of young people using increasing numbers of medicines and becoming pharmaceutical users over time. We use data from a New Zealand longitudinal study to examine changes in self reported medication use by a complete birth cohort of young adults. Details of medications taken during the previous two weeks at age 38 are compared to similar data collected at ages 32 and 26, and by gender. Major drug categories are examined. General use profiles and medicine-types are considered in light of our interest in understanding the formation of the young and middle-aging 'pharmaceutical person' - where one's embodied experience is frequently and normally mediated by pharmaceutical interventions having documented benefit/risk outcomes. PMID- 29349272 TI - Why is parental lifespan linked to children's chances of reaching a high age? A transgenerational hypothesis. AB - Purpose: Transgenerational determinants of longevity are poorly understood. We used data from four linked generations (G0, G1, G2 and G3) of the Uppsala Birth Cohort Multigeneration Study to address this issue. Methods: Mortality in G1 (N = 9565) was followed from 1961-2015 and analysed in relation to tertiles of their parents' (G0) age-at-death using Cox regression. Parental social class and marital status were adjusted for in the analyses, as was G1's birth order and adult social class. For an almost entirely deceased segment of G1 (n = 1149), born 1915-1917, we compared exact age-at-death with G0 parents' age-at-death. Finally, we explored 'resilience' as a potentially important mechanism for intergenerational transmission of longevity, using conscript information from psychological interviews of G2 and G3 men. Results: G0 men's and women's ages-at death were independently associated with G1 midlife and old age mortality. This association was robust and minimally reduced when G0 and G1 social class were adjusted for. We observed an increased lifespan in all social groups. Median difference in age-at-death for sons compared to fathers was + 3.9 years, and + 6.9 years for daughters compared to mothers.Parents' and maternal grandmother's longevity were associated with resilience in subsequent generations. Resilience scores of G2 men were also associated with those of their G3 sons and with their own mortality in midlife. Conclusions: The chance of reaching a high age is transmitted from parents to children in a modest, but robust way. Longevity inheritance is paralleled by the inheritance of individual resilience. Individual resilience, we propose, develops in the first part of life as a response to adversity and early experience in general. This gives rise to a transgenerational pathway, distinct from social class trajectories. A theory of longevity inheritance should bring together previous thinking around general susceptibility, frailty and resilience with new insights from epigenetics and social epidemiology. PMID- 29349273 TI - The contribution of three dimensions of allostatic load to racial/ethnic disparities in poor/fair self-rated health. AB - Objective: This study evaluates whether different dimensions of physiological dysregulation, modeled individually rather than additively mediate racial/ethnic disparities in self-reported health. Methods: Using data from the National Health and Nutrition Examination Survey (2005-2010) and the Karlson, Hold, and Breen (KHB) mediation model, this paper explores what operationalization of biomarker data most strongly mediate racial/ethnic disparities in poor/fair self-rated health (SRH) among adults in the United States, net of demographic, socioeconomic, behavioral, and medication controls. Results: Non-Hispanic blacks and Hispanics had significantly higher odds of reporting poor/fair self-rated health in comparison to non-Hispanic whites. Operationalizations of allostatic load that disaggregate three major dimensions of physiological dysregulation mediate racial/ethnic disparities strongly between non-Hispanic blacks and non Hispanic whites, but not between Hispanics and non-Hispanic whites. Disaggregating these dimensions explains racial/ethnic disparities in poor/fair SRH better than the continuous score. Analyses on sex-specific disparities indicate differences in how individual dimensions of allostatic load contribute to racial/ethnic disparities in poor/fair SRH differently. All individual dimensions are strong determinants of poor/fair SRH for males. In contrast, for females, the only dimension that is significantly associated with poor/fair SRH is inflammation. For the analytic sample, additive biomarker scores fit the data as well or better than other approaches, suggesting that this approach is most appropriate for explaining individual differences. However, in sex-specific analyses, the interactive approach models fit the data best for men and women. Conclusions: Future researchers seeking to explain racial/ethnic disparities in full or sex-stratified samples should consider disaggregating allostatic load by dimension. PMID- 29349274 TI - Long-run effects of early childhood exposure to cholera on final height: Evidence from industrializing Japan. AB - Pandemic cholera is one of the most topical and urgent issues in many developing countries. However, although a growing body of research has shown the negative long-run effects of infectious disease exposure on human health, the long-run influences of early childhood exposure to cholera have thus far been understudied. To bridge this gap in the body of knowledge, we draw both on new data describing adult height from 1899 to 1910 from comprehensive official Japanese army records and on data recording the regional variation in the intensity of cholera pandemics. By using a difference-in-differences estimation strategy, we find that exposure to pandemic cholera had stunting effects on the final height of men at that time. Our estimates also suggest that early-infancy exposure to cholera seems to have a stronger long-run effect on adult height than late-infancy exposure. PMID- 29349275 TI - Living with parents or grandparents increases social capital and survival: 2014 General Social Survey-National Death Index. AB - Introduction: After nearly a century-long trend toward single-family living arrangements, people in wealthy nations are increasingly living in multi generational households. Multi-generational living arrangements can, in theory, increase psychological, social, and financial capital-factors associated with improvements in health and longevity. Methods: We conducted a survival analysis using the 2014 General Social Survey-National Death Index, a prospective multi year survey. We explored whether single generational living arrangements were associated with a higher risk of mortality than multi-generational living arrangements. Results: We explored this association for different groups (e.g., the foreign-born and those with high self-reported stress in family relationships). Healthy subjects who live in two-generation households were found to have lower premature mortality (hazard ratio 0.9, 95% confidence interval = 0.82, 0.99). Otherwise, we found little evidence that living arrangements matter for the respondents' risk of premature mortality. Conclusions: Healthy people living in two-generation households have longer survival than healthy people living on their own. PMID- 29349276 TI - Examining individual, interpersonal, and environmental influences on children's physical activity levels. AB - The purpose of this study was to explore individual-level socio-demographic factors and interpersonal-level factors related to social support, as well as the potential role of neighborhood and school environments that may influence the physical activity (PA) levels of children (ages 9-11). Child and parent questionnaires included individual and interpersonal factors, and PA behaviour. Home postal codes were used to determine the neighbourhood the child resides within, as well as their geographic accessibility to recreation opportunities. The models were assessed using a series of cross-classified random-intercept multi-level regression models as children's PA may be affected by both the school they attend and the neighbourhood in which they live. In the unadjusted model, PA varied significantly across school environments (gamma = 0.023; CI: 0.003-0.043), but not across neighbourhoods (gamma = 0.007; CI: -0.008 to 0.021). Boys were found to be more active compared to girls (b = 0.183; CI: 0.092-0.275), while the level of PA was lower for children whose fathers achieved post-secondary education (b = - 0.197; CI: -0.376 to 0.018) than for those whose parents completed only high school. The addition of the individual-level correlates did not have a substantial effect on level 2 variances and the level 2 variance associated with school environment remained statistically significant. At the interpersonal level, children's perception of parental support (b = 0.117; CI: 0.091-0.143) and peer support (b = 0.111; CI: 0.079-0.142) were positively related to PA. The level 2 variance for the school environment became statistically non-significant when the interpersonal factors were added to the model. At the environmental level, geographic accessibility did not have a significant association with PA and they did not significantly affect level 1 or 2 variance. As many children do not accrue sufficient levels of PA, identifying modifiable determinants is necessary to develop effective strategies to increase PA. PMID- 29349277 TI - Patterns of poverty exposure and children's trajectories of externalizing and internalizing behaviors. AB - Using data from the Child Supplement of the National Longitudinal Survey of Youth, we compare trajectories of externalizing and internalizing behaviors among children exposed to five patterns of poverty from birth to age 14: always or never poor - stable patterns; a single transition into or out of poverty, or repeated fluctuations in and out of poverty - changing patterns. We also examine how low maternal education and single parenthood interact with these poverty exposures to compound their adverse effects. Finally, we compare the magnitude of effects associated with the patterns of poverty exposure, as well as their interactions with low maternal education and single parenthood, on trajectories of externalizing and internalizing behaviors to determine if they are significantly different. Results reveal that initial levels and rates of change in children's trajectories of externalizing and internalizing behaviors are similar across the three changing patterns of poverty exposure, leading us to combine them into a single group representing intermittent poverty. Initial disparities between children who are never poor and their counterparts who are always or intermittently poor are constant over time for internalizing behaviors and grow in magnitude for externalizing behaviors. The cumulative negative effect of poverty exposure over time is stronger for externalizing vs. internalizing behaviors. Low maternal education compounds the adverse effects of persistent poverty, an effect that is similar for externalizing and internalizing behaviors. PMID- 29349278 TI - Machine learning approaches to the social determinants of health in the health and retirement study. AB - Background: Social and economic factors are important predictors of health and of recognized importance for health systems. However, machine learning, used elsewhere in the biomedical literature, has not been extensively applied to study relationships between society and health. We investigate how machine learning may add to our understanding of social determinants of health using data from the Health and Retirement Study. Methods: A linear regression of age and gender, and a parsimonious theory-based regression additionally incorporating income, wealth, and education, were used to predict systolic blood pressure, body mass index, waist circumference, and telomere length. Prediction, fit, and interpretability were compared across four machine learning methods: linear regression, penalized regressions, random forests, and neural networks. Results: All models had poor out-of-sample prediction. Most machine learning models performed similarly to the simpler models. However, neural networks greatly outperformed the three other methods. Neural networks also had good fit to the data (R2 between 0.4-0.6, versus <0.3 for all others). Across machine learning models, nine variables were frequently selected or highly weighted as predictors: dental visits, current smoking, self-rated health, serial-seven subtractions, probability of receiving an inheritance, probability of leaving an inheritance of at least $10,000, number of children ever born, African-American race, and gender. Discussion: Some of the machine learning methods do not improve prediction or fit beyond simpler models, however, neural networks performed well. The predictors identified across models suggest underlying social factors that are important predictors of biological indicators of chronic disease, and that the non-linear and interactive relationships between variables fundamental to the neural network approach may be important to consider. PMID- 29349279 TI - Parental population exposure to historical socioeconomic and political periods and grand-child's birth weight in the Lifeways Cross-Generation Cohort Study in the Republic of Ireland. AB - Exposure to deprived socioeconomic conditions during the peri-conception and early childhood periods can have a negative long-term impact on individuals' health and that of their progeny. We aimed to examine whether relatives' birth period affected index-child (grand-child) birthweight status in the Lifeways Cross-Generation Cohort in the Republic of Ireland. Participants were 943 mothers and offspring, 890 fathers, 938 maternal grandmothers (MGM), 700 maternal grandfathers (MGF) 537 paternal grandmothers (PGM) and 553 paternal grandfathers (PGF). Index-child's birthweight was sex-for-gestational age standardised (UK1990 population), and then classified into low birthweight (<=10th percentile) and high-birthweight (>=90th percentile) and compared against normal-birthweight (>10th to <90th percentiles). Four adult birth periods were considered: The Free State (FS, 1916-1938); Emergency Act (EA, 1939-1946); Post-World War-II Baby-Boom (PWWII-BB, 1947-1964); and Modern Ireland (MI, 1964 onwards). Logistic regression was used to assess the crude and adjusted relationship between index-child's birthweight status and relatives' birth periods. Overall, there were 8.7% (n=82) index-children in the low-birthweight category, 77.9% (n=735) and 13.4% (n=126) within the normal and high birthweight groups respectively. Index-children whose mothers were born during the PWWII-BB had higher birthweight infants (Crude OR(COR)=1.81 (1.08-3.03) which remained the case only for male index-children when adjusted for co-variables (Adjusted OR(AOR)=4.61(1.71-12.42)). Parents' combined PWWII-BB birth period was positively associated with male index-child higher birthweight, even adjusted for maternal characteristics (AOR=4.60(1.69 12.50)). MGFs born during the EA were more likely to have grandchildren with low birthweight after adjustment for maternal characteristics (AOR=2.45(1.03-5.85)), particularly for female index-children (AOR=4.74(1.16-19.25)). Both PGMs and PGFs born during the FS period had higher birthweight grandchildren, adjusted for maternal-related co-variables (PGM, AOR=3.23(1.21-8.63); PGF, AOR=3.93(1.11 13.96)), with the effect of PGM more evident in her granddaughter (AOR=6.53(1.25 34.04)). In conclusion, there is some evidence that period of grandparental birth is associated with their grandchildren's birthweights, suggesting that transgenerational exposures may be particular to historical context, meriting further exploration. PMID- 29349280 TI - Food insecurity and family structure in Nigeria. AB - The article explores a series of questions and hypotheses related to polygynous family structures and both household and individual-level food security outcomes, using the World Bank Living Standards Measurement Survey data from Nigeria, collected in 2011, 2013 and 2015. A Correlated Random Effects (CRE) model is used to examine the relationship between polygyny and household-level food security, and the degree to which it is mediated by household wealth, size, and livelihood. A Household Fixed Effect model is employed to explore whether a mother's status as monogamous versus polygynous relates systematically to her child's health, and also whether child outcomes of senior wives are better than outcomes of junior wives within polygynous households. At the household level, polygynous households are found to have better food security outcomes than monogamous households with differences in household composition and agricultural livelihood as potential explanatory mechanisms. At the individual level, however, children of polygynous mothers have worse nutrition outcomes than children of monogamous mothers in the long run. Within polygynous households, children of junior wives appear to have better nutritional outcomes in the long run, compared to children of more senior wives. PMID- 29349281 TI - Work disability in the United States, 1968-2015: Prevalence, duration, recovery, and trends. AB - The United States workforce is aging. At the same time more people have chronic conditions, for longer periods. Given these trends the importance of work disability, physical or nervous problems that limit a person's type or amount of work, is increasing. No research has examined transitions among multiple levels of work disability, recovery from work disability, or trends. Limited research has focused on work disability among African Americans and Hispanics, or separately for women and men. We examined these areas using data from 30,563 adults in the 1968-2015 Panel Study of Income Dynamics. We estimated annual probabilities of work disability, recovery, and death with multinomial logistic Markov models. Microsimulations accounting for age and education estimated outcomes for African American, Hispanic, and non-Hispanic white women and men. Results from these nationally representative data suggested that the majority of Americans experience work disability during working life. Most spells ended with recovery or reduced severity. Among women, African Americans and Hispanics had less moderate and severe work disability than whites. Among men, African Americans became severely work disabled more often than whites, recovered from severe spells more often and had shorter severe spells, yet had more severe work disability at age 65. Hispanic men were more likely to report at least one spell of severe work disability than whites; they also had substantially more recovery from severe work disability, and a lower percentage of working years with work disability. Among African Americans and Hispanics, men were considerably more likely than women to have severe work disability at age 65. Work disability declined significantly across the study period for all groups. Although work disability has declined over several decades, it remains common. Results suggest that the majority of work disability spells end with recovery, underscoring the importance of rehabilitation and workplace accommodation. PMID- 29349282 TI - Does non-standard work mean non-standard health? Exploring links between non standard work schedules, health behavior, and well-being. AB - The last century has seen dramatic shifts in population work circumstances, leading to an increasing normalization of non-standard work schedules (NSWSs), defined as non-daytime, irregular hours. An ever-growing body of evidence links NSWSs to a host of non-communicable chronic conditions; yet, these associations primarily concentrate on the physiologic mechanisms created by circadian disruption and insufficient sleep. While important, not all NSWSs create such chronobiologic disruption, and other aspects of working time and synchronization could be important to the relationships between work schedules and chronic disease. Leveraging survey data from Project EAT, a population-based study with health-related behavioral and psychological data from U.S. adults aged 25-36 years, this study explored the risks for a broad range of less healthful behavioral and well-being outcomes among NSWS workers compared to standard schedule workers (n = 1402). Variations across different NSWSs (evening, night/rotating, and irregular schedules) were also explored. Results indicated that, relative to standard schedule workers, workers with NSWSs are at increased risk for non-optimal sleep, substance use, greater recreational screen time, worse dietary practices, obesity, and depression. There was minimal evidence to support differences in relative risks across workers with different types of NSWSs. The findings provide insight into the potential links between NSWSs and chronic disease and indicate the relevancy social disruption and daily health practices may play in the production of health and well-being outcomes among working populations. PMID- 29349283 TI - Is self-rated health in adolescence a predictor of prescribed medication in adulthood? Findings from the Nord Trondelag Health Study and the Norwegian Prescription Database. AB - Self-rated health (SRH) is a commonly used health indicator predicting morbidity and mortality in a range of populations. However, the relationship between SRH and medication is not well established. The aim of this study was to examine adolescent SRH as a predictor for prescribed medication later in young adulthood. Eighteen years' prospective data from the Nord-Trondelag Health Study (HUNT) and the Norwegian Prescription Database (NorPD) were analyzed. Baseline data, gathered from 8982 adolescents (mean age 16.0 years) in the Young-HUNT I survey (1995-1997), were linked to individual data from NorPD, including information on all medications prescribed in 2013-2014. Gender-stratified negative binomial regression models were used to investigate the association between SRH and medication, also adjusted for age, baseline self-reported medicine use, physical and mental disability, smoking, and physical activity. Based on the Anatomical Therapeutic Chemical (ATC) Classification System, total consumption and consumption related to various ATC groups were examined. The adjusted analyses showed a dose-response relationship for females, with poorer SRH predicting higher average medication for both total consumption and for the ATC groups "Musculoskeletal system" (M), "Nervous system" (N; Analgesics (N02), Opioids (N02A)) and "Respiratiory system" (R). The predictive power of SRH, as well as the role of the adjustment factors, varies by gender and drug groups. This knowledge is important in order to identify risks for later disease and to capture pathological changes before and beyond the disease diagnosis, potentially preventing morbidity in the adult population. PMID- 29349284 TI - The relationship between physical functional limitations, and psychological distress: Considering a possible mediating role of pain, social support and sense of mastery. AB - The aim of this study was to examine associations between selected physical functional limitations related to performing daily activities and psychological distress. We also aimed to investigate if these associations vary across age (moderation), and to explore pain, sense of mastery and social support as potential moderators and mediators. The study was based on pooled data from two rounds (2008 and 2012) of a Norwegian nationally representative cross-sectional health survey (N = 8520) including individuals aged >= 16 years (Age groups = 16 44 and >= 45 years). Physical functional limitations comprised decreased ability to: i) climb stairs, ii) carry objects, or iii) both. Psychological distress was measured as anxiety and depressive symptoms occurring separately or in combination (CAD). Of respondents reporting physical functional limitations, 8 14% reported depressive symptoms, 5-7% anxiety symptoms, and 13-28% reported CAD. Physical functional limitations were significantly associated with all three forms of psychological distress, particularly among individuals 16-44 years, and were more strongly related to CAD than to anxiety or depression occurring separately. The association with CAD was twice as strong when both types of physical functional limitations were present. Pain, sense of mastery and social support were significant modifiers of depression, whereas all three were significant mediators of the relationship between physical functional limitations and anxiety, depression and CAD. Sense of mastery mediated the relationship between physical functional limitations and CAD, but most strongly among those 16 44 years. Social support was only a significant mediator among those [Formula: see text] 45 years. Close associations between physical functional limitations and psychological distress highlight special needs among individuals experiencing daily functional limitations. The results also suggest that pain, low social support, and low sense of mastery may contribute to aggravate psychological distress. PMID- 29349285 TI - A smart-phone intervention to address mental health stigma in the construction industry: A two-arm randomised controlled trial. AB - Background: High levels of self-stigma are associated with a range of adverse mental health, treatment, and functional outcomes. This prospective study examined the effects of an electronic mental health stigma reduction intervention on self-stigma (self-blame, shame, and help-seeking inhibition) among male construction workers in Australia. Method: Male construction workers (N = 682) were randomly assigned to receive either the intervention condition or the wait list control over a six-week period. Self-stigma was assessed using the Self Stigma of Depression Scale at post-intervention. We conducted linear regression to assess the effectiveness of the intervention on self-stigma, adjusting for relevant covariates. Results: Self-stigma was relatively low in the sample. The intervention had no significant effect on self-stigma, after adjusting for confounders. There were reductions in stigma in both the intervention and control groups at 6-week follow-up. Process evaluation indicated that participants generally enjoyed the program and felt that it was beneficial to their mental health. Conclusions: These observations underscore the need for further research to elucidate understanding of the experience of self-stigma among employed males. PMID- 29349286 TI - Exercise self-efficacy in adults with congenital heart disease. AB - Background: Physical activity improves health, exercise tolerance and quality of life in adults with congenital heart disease (CHD), and exercise training is in most patients a high-benefit low risk intervention. However, factors that influence the confidence to perform exercise training, i.e. exercise self efficacy (ESE), in CHD patients are virtually unknown. We aimed to identify factors related to low ESE in adults with CHD, and potential strategies for being physically active. Methods: Seventy-nine adults with CHD; 38 with simple lesions (16 women) and 41 with complex lesions (17 women) with mean age 36.7 +/- 14.6 years and 42 matched controls were recruited. All participants completed questionnaires on ESE and quality of life, carried an activity monitor (Actiheart) during four consecutive days and performed muscle endurance tests. Results: ESE in patients was categorised into low, based on the lowest quartile within controls, (<= 29 points, n = 34) and high (> 29 points, n = 45). Patients with low ESE were older (42.9 +/- 15.1 vs. 32.0 +/- 12.4 years, p = 0.001), had more complex lesions (65% vs. 42%, p = 0.05) more often had New York Heart Association functional class III (24% vs. 4%, p = 0.01) and performed fewer shoulder flexions (32.5 +/- 15.5 vs. 47.7 +/- 25.0, p = 0.001) compared with those with high ESE. In a logistic multivariate model age (OR; 1.06, 95% CI 1.02 1.10), and number of shoulder flexions (OR; 0.96, 95% CI 0.93-0.99) were associated with ESE. Conclusion: In this study we show that many adults with CHD have low ESE. Age is an important predictor of low ESE and should, therefore, be considered in counselling patients with CHD. In addition, muscle endurance training may improve ESE, and thus enhance the potential for being physically active in this population. PMID- 29349287 TI - Barriers to Diet and Exercise among Nepalese Type 2 Diabetic Patients. AB - This study aims to identify the modifiable barriers encountered by type 2 diabetic patients in Nepal to achieving their recommended dietary and exercise advice. A cross-sectional study was conducted among 197 type 2 diabetic patients, attending a diabetic clinic. Binary logistic regression models were used to identify perceived barriers. About 41% and 46% of the participants were noncompliant to diet and exercise advice, respectively; only 35.5% the participants were compliant to both. Perceived social acceptability (OR = 0.14; 95% CI: 0.03-0.58) and reminder to action (OR = 2.77; 95% CI: 1.38-5.53) were associated with noncompliance to diet. Most of the barriers to diet were related to taste, feast and festivals, lack of knowledge, and availability of healthy options. Self-efficacy (OR = 0.09; 95% CI: 0.02-0.34) and social acceptability (OR = 0.12; 95% CI: 0.04-0.34) were significant predictors of noncompliance to exercise. The supportive role of children and spouse and the opposing role of friends and relatives were important for compliance to both. A misconception on diabetes severity, effectiveness of healthy lifestyle, and exercise timing was prevalent among the study participants. Addressing the modifiable barriers identified in this study is essential for successful diabetes management in Nepal. PMID- 29349288 TI - The In Vivo Dynamics of HIV Infection with the Influence of Cytotoxic T Lymphocyte Cells. AB - The in vivo dynamics of HIV infection, the infection mechanism, the cell types infected, and the role played by the cytotoxic cells are poorly understood. This paper uses mathematical modelling as a tool to investigate and analyze the immune system dynamics in the presence of HIV infection. We formulate a six-dimensional model of nonlinear ordinary differential equations derived from known biological interaction mechanisms between the immune cells and the HIV virions. The existence and uniqueness as well as positivity and boundedness of the solutions to the differential equations are proved. Furthermore, the disease-free reproduction number is derived and the local asymptotic stability of the model investigated. In addition, numerical analysis is carried out to illustrate the importance of having R0 < 1. Lastly, the biological dynamics of HIV in vivo infection are graphically represented. The results indicate that, at acute infection, the cytotoxic T-cells play a paramount role in reducing HIV viral replication. In addition, the results emphasize the importance of developing controls, interventions, and management policies that when implemented would lead to viral suppression during acute infection. PMID- 29349289 TI - Mixed Neurodevelopmental and Neurodegenerative Pathology in Nhe6-Null Mouse Model of Christianson Syndrome. AB - Christianson syndrome (CS) is an X-linked disorder resulting from loss-of function mutations in SLC9A6, which encodes the endosomal Na+/H+ exchanger 6 (NHE6). Symptoms include early developmental delay, seizures, intellectual disability, nonverbal status, autistic features, postnatal microcephaly, and progressive ataxia. Neuronal development is impaired in CS, involving defects in neuronal arborization and synaptogenesis, likely underlying diminished brain growth postnatally. In addition to neurodevelopmental defects, some reports have supported neurodegenerative pathology in CS with age. The objective of this study was to determine the nature of progressive changes in the postnatal brain in Nhe6 null mice. We examined the trajectories of brain growth and atrophy in mutant mice from birth until very old age (2 yr). We report trajectories of volume changes in the mutant that likely reflect both brain undergrowth as well as tissue loss. Reductions in volume are first apparent at 2 mo, particularly in the cerebellum, which demonstrates progressive loss of Purkinje cells (PCs). We report PC loss in two distinct Nhe6-null mouse models. More widespread reductions in tissue volumes, namely, in the hippocampus, striatum, and cortex, become apparent after 2 mo, largely reflecting delays in growth with more limited tissue losses with aging. Also, we identify pronounced glial responses, particularly in major fiber tracts such as the corpus callosum, where the density of activated astrocytes and microglia are substantially increased. The prominence of the glial response in axonal tracts suggests a primary axonopathy. Importantly, therefore, our data support both neurodevelopmental and degenerative mechanisms in the pathobiology of CS. PMID- 29349290 TI - A Novel Neuroprotective Mechanism for Lithium That Prevents Association of the p75NTR-Sortilin Receptor Complex and Attenuates proNGF-Induced Neuronal Death In Vitro and In Vivo. AB - Neurotrophins play critical roles in the survival, maintenance and death of neurons. In particular, proneurotrophins have been shown to mediate cell death following brain injury induced by status epilepticus (SE) in rats. Previous studies have shown that pilocarpine-induced seizures lead to increased levels of proNGF, which binds to the p75NTR-sortilin receptor complex to elicit apoptosis. A screen to identify compounds that block proNGF binding and uptake into cells expressing p75 and sortilin identified lithium citrate as a potential inhibitor of proNGF and p75NTR-mediated cell death. In this study, we demonstrate that low, submicromolar doses of lithium citrate effectively inhibited proNGF-induced cell death in cultured neurons and protected hippocampal neurons following pilocarpine induced SE in vivo. We analyzed specific mechanisms by which lithium citrate afforded neuroprotection and determined that lithium citrate prevented the association and internalization of the p75NTR-sortilin receptor complex. Our results demonstrate a novel mechanism by which low-dose treatments of lithium citrate are effective in attenuating p75NTR-mediated cell death in vitro and in vivo. PMID- 29349291 TI - Spontaneous Infraslow Fluctuations Modulate Hippocampal EPSP-PS Coupling. AB - Extensive trial-to-trial variability is a hallmark of most behavioral, cognitive, and physiological processes. Spontaneous brain activity (SBA), a ubiquitous phenomenon that coordinates levels and patterns of neuronal activity throughout the brain, may contribute to this variability by dynamically altering neuronal excitability. In freely-behaving male rats, we observed extensive variability of the hippocampal evoked response across 28-min recording periods despite maintaining constant stimulation parameters of the medial perforant path. This variability was related to antecedent SBA: increases in low-frequency (0.5-9 Hz) and high-frequency (40.25-100 Hz) band-limited power (BLP) in the 4-s preceding stimulation were associated with decreased slope of the field EPSP (fEPSP) and increased population spike (PS) amplitude. These fluctuations in SBA and evoked response magnitude did not appear stochastic but rather exhibited coordinated activity across infraslow timescales (0.005-0.02 Hz). Specifically, infraslow fluctuations in high- and low-frequency BLP were antiphase with changes in fEPSP slope and in phase with changes in PS amplitude. With these divergent effects on the fEPSP and PS, infraslow SBA ultimately modulates EPSP-PS coupling and thereby enables hippocampal circuitry to generate heterogeneous outputs from identical inputs. Consequently, infraslow SBA appears well suited to dynamically alter sensory selection and information processing and highlights the fundamental role of endogenous neuronal activity for shaping the brain's response to incoming stimuli. PMID- 29349292 TI - Membrane insertion of-and membrane potential sensing by-semiconductor voltage nanosensors: Feasibility demonstration. AB - We developed membrane voltage nanosensors that are based on inorganic semiconductor nanoparticles. We provide here a feasibility study for their utilization. We use a rationally designed peptide to functionalize the nanosensors, imparting them with the ability to self-insert into a lipid membrane with a desired orientation. Once inserted, these nanosensors could sense membrane potential via the quantum confined Stark effect, with a single-particle sensitivity. With further improvements, these nanosensors could potentially be used for simultaneous recording of action potentials from multiple neurons in a large field of view over a long duration and for recording electrical signals on the nanoscale, such as across one synapse. PMID- 29349293 TI - Experimenter gender and replicability in science. AB - There is a replication crisis spreading through the annals of scientific inquiry. Although some work has been carried out to uncover the roots of this issue, much remains unanswered. With this in mind, this paper investigates how the gender of the experimenter may affect experimental findings. Clinical trials are regularly carried out without any report of the experimenter's gender and with dubious knowledge of its influence. Consequently, significant biases caused by the experimenter's gender may lead researchers to conclude that therapeutics or other interventions are either overtreating or undertreating a variety of conditions. Bearing this in mind, this policy paper emphasizes the importance of reporting and controlling for experimenter gender in future research. As backdrop, it explores what we know about the role of experimenter gender in influencing laboratory results, suggests possible mechanisms, and suggests future areas of inquiry. PMID- 29349294 TI - Changes in seasonal snow water equivalent distribution in High Mountain Asia (1987 to 2009). AB - Snow meltwaters account for most of the yearly water budgets of many catchments in High Mountain Asia (HMA). We examine trends in snow water equivalent (SWE) using passive microwave data (1987 to 2009). We find an overall decrease in SWE in HMA, despite regions of increased SWE in the Pamir, Kunlun Shan, Eastern Himalaya, and Eastern Tien Shan. Although the average decline in annual SWE across HMA (contributing area, 2641 * 103 km2) is low (average, -0.3%), annual SWE losses conceal distinct seasonal and spatial heterogeneities across the study region. For example, the Tien Shan has seen both strong increases in winter SWE and sharp declines in spring and summer SWE. In the majority of catchments, the most negative SWE trends are found in mid-elevation zones, which often correspond to the regions of highest snow-water storage and are somewhat distinct from glaciated areas. Negative changes in SWE storage in these mid-elevation zones have strong implications for downstream water availability. PMID- 29349295 TI - A Triassic-Jurassic window into the evolution of Lepidoptera. AB - On the basis of an assemblage of fossilized wing scales recovered from latest Triassic and earliest Jurassic sediments from northern Germany, we provide the earliest evidence for Lepidoptera (moths and butterflies). The diverse scales confirm a (Late) Triassic radiation of lepidopteran lineages, including the divergence of the Glossata, the clade that comprises the vast multitude of extant moths and butterflies that have a sucking proboscis. The microfossils extend the minimum calibrated age of glossatan moths by ca. 70 million years, refuting ancestral association of the group with flowering plants. Development of the proboscis may be regarded as an adaptive innovation to sucking free liquids for maintaining the insect's water balance under arid conditions. Pollination drops secreted by a variety of Mesozoic gymnosperms may have been non-mutualistically exploited as a high-energy liquid source. The early evolution of the Lepidoptera was probably not severely interrupted by the end-Triassic biotic crisis. PMID- 29349296 TI - Unlocking data sets by calibrating populations of models to data density: A study in atrial electrophysiology. AB - The understanding of complex physical or biological systems nearly always requires a characterization of the variability that underpins these processes. In addition, the data used to calibrate these models may also often exhibit considerable variability. A recent approach to deal with these issues has been to calibrate populations of models (POMs), multiple copies of a single mathematical model but with different parameter values, in response to experimental data. To date, this calibration has been largely limited to selecting models that produce outputs that fall within the ranges of the data set, ignoring any trends that might be present in the data. We present here a novel and general methodology for calibrating POMs to the distributions of a set of measured values in a data set. We demonstrate our technique using a data set from a cardiac electrophysiology study based on the differences in atrial action potential readings between patients exhibiting sinus rhythm (SR) or chronic atrial fibrillation (cAF) and the Courtemanche-Ramirez-Nattel model for human atrial action potentials. Not only does our approach accurately capture the variability inherent in the experimental population, but we also demonstrate how the POMs that it produces may be used to extract additional information from the data used for calibration, including improved identification of the differences underlying stratified data. We also show how our approach allows different hypotheses regarding the variability in complex systems to be quantitatively compared. PMID- 29349297 TI - Organic matter in extraterrestrial water-bearing salt crystals. AB - Direct evidence of complex prebiotic chemistry from a water-rich world in the outer solar system is provided by the 4.5-billion-year-old halite crystals hosted in the Zag and Monahans (1998) meteorites. This study offers the first comprehensive organic analysis of the soluble and insoluble organic compounds found in the millimeter-sized halite crystals containing brine inclusions and sheds light on the nature and activity of aqueous fluids on a primitive parent body. Associated with these trapped brines are organic compounds exhibiting wide chemical variations representing organic precursors, intermediates, and reaction products that make up life's precursor molecules such as amino acids. The organic compounds also contain a mixture of C-, O-, and N-bearing macromolecular carbon materials exhibiting a wide range of structural order, as well as aromatic, ketone, imine, and/or imidazole compounds. The enrichment in 15N is comparable to the organic matter in pristine Renazzo-type carbonaceous chondrites, which reflects the sources of interstellar 15N, such as ammonia and amino acids. The amino acid content of the Zag halite deviates from the meteorite matrix, supporting an exogenic origin of the halite, and therefore, the Zag meteorite contains organics synthesized on two distinct parent bodies. Our study suggests that the asteroidal parent body where the halite precipitated, potentially asteroid 1 Ceres, shows evidence for a complex combination of biologically and prebiologically relevant molecules. PMID- 29349298 TI - Direct measurements of DOCO isomers in the kinetics of OD + CO. AB - Quantitative and mechanistically detailed kinetics of the reaction of hydroxyl radical (OH) with carbon monoxide (CO) have been a longstanding goal of contemporary chemical kinetics. This fundamental prototype reaction plays an important role in atmospheric and combustion chemistry, motivating studies for accurate determination of the reaction rate coefficient and its pressure and temperature dependence at thermal reaction conditions. This intricate dependence can be traced directly to details of the underlying dynamics (formation, isomerization, and dissociation) involving the reactive intermediates cis- and trans-HOCO, which can only be observed transiently. Using time-resolved frequency comb spectroscopy, comprehensive mechanistic elucidation of the kinetics of the isotopic analog deuteroxyl radical (OD) with CO has been realized. By monitoring the concentrations of reactants, intermediates, and products in real time, the branching and isomerization kinetics and absolute yields of all species in the OD + CO reaction are quantified as a function of pressure and collision partner. PMID- 29349299 TI - Limited contribution of ancient methane to surface waters of the U.S. Beaufort Sea shelf. AB - In response to warming climate, methane can be released to Arctic Ocean sediment and waters from thawing subsea permafrost and decomposing methane hydrates. However, it is unknown whether methane derived from this sediment storehouse of frozen ancient carbon reaches the atmosphere. We quantified the fraction of methane derived from ancient sources in shelf waters of the U.S. Beaufort Sea, a region that has both permafrost and methane hydrates and is experiencing significant warming. Although the radiocarbon-methane analyses indicate that ancient carbon is being mobilized and emitted as methane into shelf bottom waters, surprisingly, we find that methane in surface waters is principally derived from modern-aged carbon. We report that at and beyond approximately the 30-m isobath, ancient sources that dominate in deep waters contribute, at most, 10 +/- 3% of the surface water methane. These results suggest that even if there is a heightened liberation of ancient carbon-sourced methane as climate change proceeds, oceanic oxidation and dispersion processes can strongly limit its emission to the atmosphere. PMID- 29349300 TI - Tensile forces drive a reversible fibroblast-to-myofibroblast transition during tissue growth in engineered clefts. AB - Myofibroblasts orchestrate wound healing processes, and if they remain activated, they drive disease progression such as fibrosis and cancer. Besides growth factor signaling, the local extracellular matrix (ECM) and its mechanical properties are central regulators of these processes. It remains unknown whether transforming growth factor-beta (TGF-beta) and tensile forces work synergistically in up regulating the transition of fibroblasts into myofibroblasts and whether myofibroblasts undergo apoptosis or become deactivated by other means once tissue homeostasis is reached. We used three-dimensional microtissues grown in vitro from fibroblasts in macroscopically engineered clefts for several weeks and found that fibroblasts transitioned into myofibroblasts at the highly tensed growth front as the microtissue progressively closed the cleft, in analogy to closing a wound site. Proliferation was up-regulated at the growth front, and new highly stretched fibronectin fibers were deposited, as revealed by fibronectin fluorescence resonance energy transfer probes. As the tissue was growing, the ECM underneath matured into a collagen-rich tissue containing mostly fibroblasts instead of myofibroblasts, and the fibronectin fibers were under reduced tension. This correlated with a progressive rounding of cells from the growth front inward, with decreased alpha-smooth muscle actin expression, YAP nuclear translocation, and cell proliferation. Together, this suggests that the myofibroblast phenotype is stabilized at the growth front by tensile forces, even in the absence of endogenously supplemented TGF-beta, and reverts into a quiescent fibroblast phenotype already 10 MUm behind the growth front, thus giving rise to a myofibroblast-to-fibroblast transition. This is the hallmark of reaching prohealing homeostasis. PMID- 29349301 TI - Emergence of Kondo lattice behavior in a van der Waals itinerant ferromagnet, Fe3GeTe2. AB - Searching for heavy fermion (HF) states in non-f-electron systems becomes an interesting issue, especially in the presence of magnetism, and can help explain the physics of complex compounds. Using angle-resolved photoemission spectroscopy, scanning tunneling microscopy, physical properties measurements, and the first-principles calculations, we observe the HF state in a 3d-electron van der Waals ferromagnet, Fe3GeTe2. Upon entering the ferromagnetic state, a massive spectral weight transfer occurs, which results from the exchange splitting. Meanwhile, the Fermi surface volume and effective electron mass are both enhanced. When the temperature drops below a characteristic temperature T*, heavy electrons gradually emerge with further enhanced effective electron mass. The coexistence of ferromagnetism and HF state can be well interpreted by the dual properties (itinerant and localized) of 3d electrons. This work expands the limit of ferromagnetic HF materials from f- to d-electron systems and illustrates the positive correlation between ferromagnetism and HF state in the 3d-electron material, which is quite different from the f-electron systems. PMID- 29349302 TI - Fast, noise-free memory for photon synchronization at room temperature. AB - Future quantum photonic networks require coherent optical memories for synchronizing quantum sources and gates of probabilistic nature. We demonstrate a fast ladder memory (FLAME) mapping the optical field onto the superposition between electronic orbitals of rubidium vapor. Using a ladder-level system of orbital transitions with nearly degenerate frequencies simultaneously enables high bandwidth, low noise, and long memory lifetime. We store and retrieve 1.7-ns long pulses, containing 0.5 photons on average, and observe short-time external efficiency of 25%, memory lifetime (1/e) of 86 ns, and below 10-4 added noise photons. Consequently, coupling this memory to a probabilistic source would enhance the on-demand photon generation probability by a factor of 12, the highest number yet reported for a noise-free, room temperature memory. This paves the way toward the controlled production of large quantum states of light from probabilistic photon sources. PMID- 29349303 TI - Integrated Medical Curriculum: Advantages and Disadvantages. AB - Most curricula for medical education have been integrated horizontally and vertically--vertically between basic and clinical sciences. The Flexnerian curriculum has disappeared to permit integration between basic sciences and clinical sciences, which are taught throughout the curriculum. We have proposed a different form of integration where the horizontal axis represents the defined learning outcomes and the vertical axis represents the teaching of the sciences throughout the courses. We believe that a mere integration of basic and clinical sciences is not enough because it is necessary to emphasize the importance of humanism as well as health population sciences in medicine. It is necessary to integrate basic and clinical sciences, humanism, and health population in the vertical axis, not only in the early years but also throughout the curriculum, presupposing the use of active teaching methods based on problems or cases in small groups. PMID- 29349304 TI - Negative Marking and the Student Physician--A Descriptive Study of Nigerian Medical Schools. AB - Background: There is considerable debate about the two most commonly used scoring methods, namely, the formula scoring (popularly referred to as negative marking method in our environment) and number right scoring methods. Although the negative marking scoring system attempts to discourage students from guessing in order to increase test reliability and validity, there is the view that it is an excessive and unfair penalty that also increases anxiety. Feedback from students is part of the education process; thus, this study assessed the perception of medical students about negative marking method for multiple choice question (MCQ) examination formats and also the effect of gender and risk-taking behavior on scores obtained with this assessment method. Methods: This was a prospective multicenter survey carried out among fifth year medical students in Enugu State University and the University of Nigeria. A structured questionnaire was administered to 175 medical students from the two schools, while a class test was administered to medical students from Enugu State University. Qualitative statistical methods including frequencies, percentages, and chi square were used to analyze categorical variables. Quantitative statistics using analysis of variance was used to analyze continuous variables. Results: Inquiry into assessment format revealed that most of the respondents preferred MCQs (65.9%). One hundred and thirty students (74.3%) had an unfavorable perception of negative marking. Thirty-nine students (22.3%) agreed that negative marking reduces the tendency to guess and increases the validity of MCQs examination format in testing knowledge content of a subject compared to 108 (61.3%) who disagreed with this assertion (chi2 = 23.0, df = 1, P = 0.000). The median score of the students who were not graded with negative marking was significantly higher than the score of the students graded with negative marking (P = 0.001). There was no statistically significant difference in the risk-taking behavior between male and female students in their MCQ answering patterns with negative marking method (P = 0.618). Conclusions: In the assessment of students, it is more desirable to adopt fair penalties for discouraging guessing rather than excessive penalties for incorrect answers, which could intimidate students in negative marking schemes. There is no consensus on the penalty for an incorrect answer. Thus, there is a need for continued research into an effective and objective assessment tool that will ensure that the students' final score in a test truly represents their level of knowledge. PMID- 29349305 TI - From Introduction to Integration: Providing Community-Engaged Structure for Interprofessional Education. AB - Background: Training future healthcare profession students using interprofessional education (IPE) is critical to improve quality of health care and patient safety. Objective: The objective of this study was to implement an IPE program and determine student satisfaction with each session, including a clinical case requiring teams with members from each profession addressing clinical scenarios. Subjects: The subjects of this study were students from Athletic Training, Medicine, Nursing, Pharmacy, Physical Therapy, Physician Assistant, Social Work, and Speech-Language Pathology. Methods: Evaluations, administered to all participating students, consisted of Likert-style responses, rating agreement with a series of questions, and space for descriptive comments. Score differences for each question were compared using independent group t-tests with a P-value of 0.05 to determine statistical significance. Results: There were statistically higher satisfaction ratings for the problem-based learning case when compared to less interactive sessions (P < 0.0001). Conclusion: Students perceived benefits of the IPE program. Perceptions improved when various students had the opportunity to work together on clinically relevant problems. PMID- 29349307 TI - Blended Learning in Obstetrics and Gynecology Resident Education: Impact on Resident Clinical Performance. AB - Problem: Effects of residents' blended learning on their clinical performance have rarely been reported. A blended learning pilot program was instituted at Southern Illinois University School of Medicine's Obstetrics and Gynecology program. One of the modules was chronic hypertension in pregnancy. We sought to evaluate if the resident blended learning was transferred to their clinical performance six months after the module. Intervention: A review of patient charts demonstrated inadequate documentation of history, evaluation, and counseling of patients with chronic hypertension at the first prenatal visit by Obstetrics and Gynecology (OB/GYN) residents. A blended learning module on chronic hypertension in pregnancy was then provided to the residents. A retrospective chart review was then performed to assess behavioral changes in the OB/GYN residents. Context: This intervention was carried out at the Department of Obstetrics and Gynecology, Southern Illinois University. All 16 OB/GYN residents were enrolled in this module as part of their educational curriculum. A query of all prenatal patients diagnosed with chronic hypertension presenting to the OB/GYN resident clinics four months prior to the implementation of the blended learning module (March 2015-June 2015) and six months after (July 20, 2015-February 2016) was performed. Data were collected from outpatient charts utilizing the electronic medical record. Data were abstracted from resident documentation at the first prenatal visit. Outcome: The residents thought that the blended learning module was applicable to performance improvement in the real-world setting. Patients evaluated before (n = 10) and after (n = 7) the intervention were compared. After the intervention, there was an increase in assessment of baseline liver enzymes, referral for electrocardiogram, and early assessment for diabetes in the obese patients. More patients were provided a blood pressure cuff after the module (71.4% vs. 20%). Data were provided to the residents in an informal setting. Discussion during this session suggested that inconsistent use of the algorithm and incomplete documentation were reasons for the findings. Lessons Learned: This study suggests that blended learning may be a viable tool to support sustained changes in the performance of OB/GYN residents. Scheduled follow-up should be employed to facilitate and ensure continued learning and behavioral changes. PMID- 29349306 TI - Case-Based Learning and its Application in Medical and Health-Care Fields: A Review of Worldwide Literature. AB - Introduction: Case-based learning (CBL) is a newer modality of teaching healthcare. In order to evaluate how CBL is currently used, a literature search and review was completed. Methods: A literature search was completed using an OVID(c) database using PubMed as the data source, 1946-8/1/2015. Key words used were "Case-based learning" and "medical education", and 360 articles were retrieved. Of these, 70 articles were selected to review for location, human health care related fields of study, number of students, topics, delivery methods, and student level. Results: All major continents had studies on CBL. Education levels were 64% undergraduate and 34% graduate. Medicine was the most frequently represented field, with articles on nursing, occupational therapy, allied health, child development and dentistry. Mean number of students per study was 214 (7-3105). The top 3 most common methods of delivery were live presentation in 49%, followed by computer or web-based in 20% followed by mixed modalities in 19%. The top 3 outcome evaluations were: survey of participants, knowledge test, and test plus survey, with practice outcomes less frequent. Selected studies were reviewed in greater detail, highlighting advantages and disadvantages of CBL, comparisons to Problem-based learning, variety of fields in healthcare, variety in student experience, curriculum implementation, and finally impact on patient care. Conclusions: CBL is a teaching tool used in a variety of medical fields using human cases to impart relevance and aid in connecting theory to practice. The impact of CBL can reach from simple knowledge gains to changing patient care outcomes. PMID- 29349308 TI - Creating a Novel Cardiac Limited Ultrasound Exam Curriculum for Internal Medical Residency: Four Unanticipated Tasks. AB - Over the past two decades, our internal medicine residency has created a unique postgraduate education in internal medicine by incorporating a formal curriculum in point-of-care cardiac ultrasound as a mandatory component. The details regarding content and implementation were critical to the initial and subsequent success of this novel program. In this paper, we discuss the evidence-based advances, considerations, and pitfalls that we have encountered in the program's development through the discussion of four unanticipated tasks unique to a point of-care ultrasound curriculum. The formatted discussion of these tasks will hopefully assist development of ultrasound programs at other institutions. PMID- 29349309 TI - Group Learning Assessments as a Vital Consideration in the Implementation of New Peer Learning Pedagogies in the Basic Science Curriculum of Health Profession Programs. AB - Inspired by reports of successful outcomes in health profession education literature, peer learning has progressively grown to become a fundamental characteristic of health profession curricula. Many studies, however, are anecdotal or philosophical in nature, particularly when addressing the effectiveness of assessments in the context of peer learning. This commentary provides an overview of the rationale for using group assessments in the basic sciences curriculum of health profession programs and highlights the challenges associated with implementing group assessments in this context. The dearth of appropriate means for measuring group process suggests that professional collaboration competencies need to be more clearly defined. Peer learning educators are advised to enhance their understanding of social psychological research in order to implement best practices in the development of appropriate group assessments for peer learning. PMID- 29349310 TI - Integration of Dermatology-Focused Physical Diagnosis Rounds and Case-Based Learning within the Internal Medicine Medical Student Clerkship. AB - Background: Over half of dermatologic conditions are seen by nondermatologists, yet medical students receive little dermatology education. Medical students in the clinical years of training at our institution felt insecure in their physical diagnosis skills for dermatologic conditions. Objective: The objective of this study was to implement dermatology-focused curricula within the Internal Medicine (IM) Core Clerkship to increase student confidence in diagnosing skin diseases. Methods: Two dermatology-focused sessions were integrated into the IM Clerkship. A faculty dermatologist leads students on a dermatology-focused physical diagnosis "Skin Rounds", where patients are seen at the bedside and students practice describing skin lesions and forming a differential diagnosis. Students also participate in a case-based active learning session. A dermatologist selects images of common skin conditions that students describe utilizing appropriate terminology and offer a differential diagnosis. The impact of these sessions was assessed through survey-based student feedback and by comparing the results from the IM Shelf Exam before and after intervention. Results: A total of 74 students completed the skin rounds survey (32% response rate). About 99% (n = 73) of students felt that skin rounds were effective and useful, and 92% (n = 68) of students reported that they felt more confident in describing skin lesions afterward. A total of 43 students completed the case-based learning session survey (37% response rate), and 98% (n = 42) of students strongly agreed or agreed that the session was effective and useful. Performance on the dermatologic questions of the IM Shelf Exam was analyzed. While not statistically significant at P < 0.05, students improved from an average of 77% correct responses before intervention to 79% afterward (P = 0.60). Conclusions: Our case-based and bedside teaching interventions were met with high satisfaction from medical students and increased their confidence in describing skin lesions. This intervention can serve as a model to improve dermatology education and can be adapted to utilize the IM clerkship to address curriculum inadequacies at other institutions. PMID- 29349311 TI - Capturing the Integration of Practice-Based Learning with Beliefs, Values, and Attitudes using Modified Concept Mapping. AB - Practice-based learning integrates the cognitive, psychomotor, and affective domains and is influenced by students' beliefs, values, and attitudes. Concept mapping has been shown to effectively demonstrate students' changing concepts and knowledge structures. This article discusses how concept mapping was modified to capture students' perceptions of the connections between the domains of thinking and knowing, emotions, behavior, attitudes, values, and beliefs and the specific experiences related to these, over a period of eight months of practice-based clinical learning. The findings demonstrate that while some limitations exist, modified concept mapping is a manageable way to gather rich data about students' perceptions of their clinical practice experiences. These findings also highlight the strong integrating influence of beliefs and values on other areas of practice, suggesting that these need to be attended to as part of a student's educational program. PMID- 29349312 TI - Combining Expertise: Reflecting on a Team Approach to Curriculum Development and Implementation. AB - Introduction: This article discussed curriculum development and implementation using a unique collaboration of basic scientists and clinicians functioning as course co-directors. It explores the pros, cons, and unintended consequences of this integrated approach through reflections of the faculty involved. Methods: Ten faculty participated in semi-structured phone interviews to reflect on their experiences. Results: Analysis of interview transcripts revealed four key themes: (1) the value of the basic scientist and clinician partnership, (2) strategies for coordination, (3) balancing responsibilities, and (4) hierarchy and power. Discussion: This study identified that both basic scientists and clinicians experienced benefits from using a course co-director collaborative approach to curriculum development and implementation. While challenges are also noted, the benefits of the collaboration were evident in course organization, course evaluation reports, student feedback, and USMLE Step I pass rate. PMID- 29349313 TI - Prepared for Practice? Interns' Experiences of Undergraduate Clinical Skills Training in Ireland. AB - Background: Many previous studies on internship have reported a lack of preparedness for the role. More recently in Ireland, medical schools have introduced formal clinical skills training programmes. This study sought to evaluate the impact, if any, of formal skills training in the medical training on intern's preparedness for practice. Methods: The study utilized a survey approach followed by focus group discussions. The aim was to identify the skills that were taught and assessed in medical training and the skills that were actually required in their intern year. Results: Most interns had received skills training in designated skills laboratories. No intern had received training in all skills advised in the European guidelines. Skills taught to all interns were intravenous cannulation, basic life support, and basic suture. Skills required from all interns were intravenous cannulation, phlebotomy, and arterial blood sampling. Removal of peripherally inserted central line (PICC) lines, central lines, and chest drains were commonly requested but not taught. Senior staff underestimated skill abilities and expected failure. Conclusion: These findings identify discordance between the skills taught and the skills required in the job. There is a need for standardization in the clinical skills training to ensure that all interns enter practice with equal competencies. Consideration should be given to experiential learning opportunities such as subintern programmes to consolidate learning and improve preparedness. Improvement in communications with senior clinicians is indicated to ensure that expectations are realistic and reflective of actual training. PMID- 29349314 TI - How Effective is a Dental Workshop at Improving the Knowledge and Confidence of Medical Students in the Management of Dental Emergencies? AB - The purpose of this study was to evaluate the effect of a three-hour hands-on workshop for medical students and residents on their pre- and postcourse knowledge and confidence in managing dental emergencies. A 1-hour lecture followed by four 20-minute "hands-on" skill stations on dental mannequins was administered to a group of 30 medical students and residents. Pre- and postworkshop questionnaire surveys were conducted. There was a significant increase in the percent of attendees who responded correctly to three of the four knowledge questions following the workshop (P-value < 0.005). Confidence, as expressed in various statements, about treating dental emergencies was significantly improved after the lecture for eight of the nine statements. These findings indicate that dental knowledge is generally not provided during medical training. Our interactive workshop appeared to be effective in increasing this knowledge and self-reported confidence in handling dental emergencies. These findings clearly indicate the need for additional dental education during medical school. The use of a hands-on workshop may be one model for achieving this goal. PMID- 29349315 TI - Assessing the Development of Medical Students' Personal and Professional Skills by Portfolio. AB - The introduction of a new domain of learning for Personal and Professional Skills in the medical program at the University of Auckland in New Zealand has involved the compilation of a portfolio for assessment. This departure from the traditional assessment methods predominantly used in the past has been challenging to design, introduce, and maintain as a relevant and authentic assessment method. We present the portfolio format along with the process for its introduction and appraise the challenges, strengths, and limitations of the approach within the context of the current literature. We then outline a cyclical model of evaluation used to monitor and fine-tune the portfolio tasks and implementation process, in response to student and assessor feedback. The portfolios have illustrated the level of insight, maturity, and synthesis of personal and professional qualities that students are capable of achieving. The Auckland medical program strives to foster these qualities in its students, and the portfolio provides an opportunity for students to demonstrate their reflective abilities. Moreover, the creation of a Personal and Professional Skills domain with the portfolio as its key assessment emphasizes the importance of reflective practice and personal and professional development and gives a clear message that these are fundamental longitudinal elements of the program. PMID- 29349316 TI - White Coat Ceremony as a Professional Identity Formation Activity in a United States Family Medicine Residency Program. AB - Introduction: White coat ceremonies (WCCs) in medical school mark the transition of students to medicine, beginning their professional identity formation as a physician. However, a literature/web search revealed a paucity of residency focused WCCs. Methods: A 90-minute Family Medicine Residency (FM) WCC was designed to support residents' professional identity formation as a specialty physician. Through faculty narratives and brief histories of the white coat and the specialty, the WCC concludes with new residents donning their specialty embroidered white coats. A brief e-survey was sent to attendees, and WCC leaders were debriefed to determine the value and key elements of WCC. Results: Seventy nine percent of survey respondents (34/43) agreed that the WCC is an important transition event for residents' identity while reaffirming FM values for faculty/staff. WCC leaders identified critical steps for initiating a WCC. Conclusion: A resident WCC formally marks the transition to specialty physician identity. Lessons Learned: Ceremony structure will evolve over time. PMID- 29349317 TI - Integration of Point-of-Care Ultrasound Training into Undergraduate Medical Curricula--A Perspective from Medical Students. AB - The utility of point of care ultrasound training during medical school is becoming more and more evident. At the Loma Linda University School of Medicine, we have formally integrated ultrasound education into the curriculum of all four years. Exposure begins in the first few months of Year 1 and takes form in a variety of educational mediums through Year 4. Whether students receive training through mandatory sessions during physical diagnosis courses or extracurricular workshops provided through the Ultrasound Interest Group--the experience equips learners of at all different skill levels with the confidence to apply what they have learned to patient care. The successful integration of ultrasound training into the medical curriculum can be attributed to progressive administration, devoted faculty and eager students. The perspective of medical students during the integration process is described in this paper. PMID- 29349318 TI - Development of a Course-Based Undergraduate Research Experience to Introduce Drug Receptor Concepts. AB - Course-based research experiences (CUREs) are currently of high interest due to their potential for engaging undergraduate students in authentic research and maintaining their interest in science, technology, engineering, and mathematics (STEM) majors. As part of a campus-wide initiative called STEMCats, which is a living learning program offered to freshman STEM majors at the University of Kentucky funded by a grant from Howard Hughes Medical Institute, we have developed a CURE for freshmen interested in pursuing health care careers. Our course, entitled "Drug-Drug Interactions in Breast Cancer," utilized a semester long, in-class authentic research project and instructor-led discussions to engage students in a full spectrum of research activities, ranging from developing hypotheses and experimental design to generating original data, collaboratively interpreting results and presenting a poster at a campus-wide symposium. Student's feedback indicated a positive impact on scientific understanding and skills, enhanced teamwork and communication skills, as well as high student engagement, motivation, and STEM belonging. STEM belonging is defined as the extent to which a student may view the STEM fields as places where they belong. The results obtained from this pilot study, while preliminary, will be useful for guiding design revisions and generating appropriate objective evaluations of future pharmacological-based CUREs. PMID- 29349319 TI - Encouraging Subspecialty Practice by Constructively Influencing Trainees Early in their Careers Will Improve Advocacy for Neuro-Ophthalmology among Nigerian Ophthalmologists. AB - This study was conducted to assess the current knowledge, attitude, and perception of Nigerian ophthalmologists toward neuro-ophthalmology; identify barriers to the uptake of neuro-ophthalmology as a desired subspecialty; and make recommendations to improve interest in neuro-ophthalmology training. This was a cross-sectional survey of ophthalmology consultants and trainees from the six geopolitical zones of Nigeria, who were attending a national ophthalmology conference. All consenting respondents voluntarily completed a validated self administered questionnaire. There were 107 respondents comprising 56 males and 51 females. Majority (54.2%) of respondents were aged 40 years and younger. Almost half (47.8%) worked at tertiary level, public health institutions. Only 10.3% worked in private practice. Neuro-ophthalmology exposure was short and occurred mainly during residency (65.7%), while 15% had no exposure at all. Most (80.4%) indicated only nominal interest in neuro-ophthalmology, while only 4.6% indicated a desire to specialize in the field. Financial constraint was the main obstacle to the pursuit of subspecialty training. A total of 86% of respondents admitted that full (34%) or partial (52%) Funding would motivate them to pursue the training. Among respondents desiring part sponsorship, more than half were willing to augment such sponsorship with personal funds. In conclusion, career interest in neuro-ophthalmology is very low among Nigerian ophthalmologists. Late and limited exposure to neuro-ophthalmology during medical training may be contributing factors. Early exposure to neuro-ophthalmology during medical school rotations, coupled with the provision of sponsored subspecialty training opportunities, will serve to increase enrollment in the field. PMID- 29349320 TI - Reactions to Diversity: Using Theater to Teach Medical Students about Cultural Diversity. AB - Training medical students to understand the effects of culture and marginalization on health outcomes is important to the future health of increasingly diverse populations. We devised and evaluated a short training module on working with diversity to challenge students' thinking about the role of both patient and practitioner culture in health outcomes. The workshop combined didactic teaching about culture as a social determinant of health using the cultural humility model, interactive exercises, and applied theater techniques. We evaluated changes in the students' perceptions and attitudes over time using the Reaction to Diversity Inventory. There was initial significant improvement. Women and students with no past diversity training responded best. However, scores largely reverted to baseline over 12 months. PMID- 29349321 TI - Assessment of Clinical Reasoning by Listening to Case Presentations: VSOP Method for Better Feedback. AB - Case presentation is used as a teaching and learning tool in almost all clinical education, and it is also associated with clinical reasoning ability. Despite this, no specific assessment tool utilizing case presentations has yet been established. SNAPPS (summarize, narrow, analyze, probe, plan, and select) and the One-minute Preceptor are well-known educational tools for teaching how to improve consultations. However, these tools do not include a specific rating scale to determine the diagnostic reasoning level. Mini clinical evaluation exercise (Mini CEX) and RIME (reporter, interpreter, manager, and educator) are comprehensive assessment tools with appropriate reliability and validity. The vague, structured, organized and pertinent (VSOP) model, previously proposed in Japan and derived from RIME model, is a tool for formative assessment and teaching of trainees through case presentations. Uses of the VSOP model in real settings are also discussed. PMID- 29349322 TI - Key Points to Facilitate the Adoption of Computer-Based Assessments. AB - There are strong pedagogical arguments in favor of adopting computer-based assessment. The risks of technical failure can be managed and are offset by improvements in cost-effectiveness and quality assurance capability. Academic, administrative, and technical leads at an appropriately senior level within an institution need to be identified, so that they can act as effective advocates. All stakeholder groups need to be represented in undertaking a detailed appraisal of requirements and shortlisting software based on core functionality, summative assessment life cycle needs, external compatibility, security, and usability. Any software that is a candidate for adoption should be trialed under simulated summative conditions, with all stakeholders having a voice in agreeing the optimum solution. Transfer to a new system should be carefully planned and communicated, with a programme of training established to maximize the success of adoption. PMID- 29349323 TI - Online Learning Tools as Supplements for Basic and Clinical Science Education. AB - Undergraduate medical educators are increasingly incorporating online learning tools into basic and clinical science curricula. In this paper, we explore the diversity of online learning tools and consider the range of applications for these tools in classroom and bedside learning. Particular advantages of these tools are highlighted, such as delivering foundational knowledge as part of the "flipped classroom" pedagogy and for depicting unusual physical examination findings and advanced clinical communication skills. With accelerated use of online learning, educators and administrators need to consider pedagogic and practical challenges posed by integrating online learning into individual learning activities, courses, and curricula as a whole. We discuss strategies for faculty development and the role of school-wide resources for supporting and using online learning. Finally, we consider the role of online learning in interprofessional, integrated, and competency-based applications among other contemporary trends in medical education are considered. PMID- 29349324 TI - Engagement Patterns of High and Low Academic Performers on Facebook Anatomy Pages. AB - Only a few studies have investigated how students use and respond to social networks in the educational context as opposed to social use. In this study, the engagement of medical students on anatomy Facebook pages was evaluated in view of their academic performance. High performers contributed to most of the engagements. They also had a particular preference for higher levels of engagement. Although the students were deeply involved in the educational element of the pages, they continued to appreciate the inherent social element. The profound engagement of the high performers indicated a consistency between Facebook use in the educational context and better student performance. At the same time, the deeper engagement of high performers refutes the opinion that Facebook use is a distractor. Instead, it supports the notion that Facebook could be a suitable platform to engage students in an educational context. PMID- 29349325 TI - Back to the Future: What Learning Communities Offer to Medical Education. AB - Learning communities (LCs) have increasingly been incorporated into undergraduate medical education at a number of medical schools in the United States over the past decade. In an Association of Medical Colleges survey of 140 medical schools, 102 schools indicated that they had LC (described as colleges or mentorship groups; https://www.aamc.org/initiatives/cir/425510/19a.html). LCs share an overarching principle of establishing longitudinal relationships with students and faculty, but differ in the emphasis on specific components that may include curriculum delivery, advising/ mentoring, student wellness, and community. The creation of LCs requires institutional commitment to reorganize educational processes to become more student centered. LCs are beginning to show positive outcomes for students including benefits related to clinical skills development, advising, and student wellness, in addition to positive outcomes for LC faculty. PMID- 29349326 TI - Active Learning in Medical Education: Application to the Training of Surgeons. AB - Our article defines active learning in the context of surgical education and reviews the growing body of research on new approaches to teaching. We then discuss future perspectives and the challenges faced by the trainee and surgeon in applying active learning to surgical training. As modern surgical education faces numerous challenges, we hope our article will help surgical educators in the evaluation of curriculum development, methods of instruction, and assessment. PMID- 29349327 TI - Faculty Development on Clinical Teaching Skills: An Effective Model for the Busy Clinician. AB - Introduction: The authors developed and evaluated a faculty development program on clinical teaching skills to address barriers to participation and to impact teaching behaviors. Methods: Four one-hour workshops were implemented over five months. Evaluation included participant satisfaction and pre/post self assessment. Pre/post faculty teaching ratings by trainees were compared. Results: A total of 82% of faculty (N = 41) attended. Participants rated workshops highly (mean, 4.43/5.00). Self-assessment of skills and comfort with teaching activities improved. A total of 59% of residents and 40% of fellows felt that teaching received from participating faculty was highly effective. The majority observed targeted teaching behaviors by the faculty. Teaching ratings improved after the workshops (P = 0.042). Conclusion: Our series of short workshops during a standing conference time was associated with increased self-assessed skill and comfort and an increase in faculty ratings on teaching evaluations. Effective faculty development programs can be implemented in flexible formats and overcome common barriers to participation. PMID- 29349328 TI - Clinical Correlations as a Tool in Basic Science Medical Education. AB - Clinical correlations are tools to assist students in associating basic science concepts with a medical application or disease. There are many forms of clinical correlations and many ways to use them in the classroom. Five types of clinical correlations that may be embedded within basic science courses have been identified and described. (1) Correlated examples consist of superficial clinical information or stories accompanying basic science concepts to make the information more interesting and relevant. (2) Interactive learning and demonstrations provide hands-on experiences or the demonstration of a clinical topic. (3) Specialized workshops have an application-based focus, are more specialized than typical laboratory sessions, and range in complexity from basic to advanced. (4) Small-group activities require groups of students, guided by faculty, to solve simple problems that relate basic science information to clinical topics. (5) Course-centered problem solving is a more advanced correlation activity than the others and focuses on recognition and treatment of clinical problems to promote clinical reasoning skills. Diverse teaching activities are used in basic science medical education, and those that include clinical relevance promote interest, communication, and collaboration, enhance knowledge retention, and help develop clinical reasoning skills. PMID- 29349329 TI - Using Learner-Centered, Simulation-Based Training to Improve Medical Students' Procedural Skills. AB - Purpose: To evaluate the effectiveness of a learner-centered, simulation-based training developed to help medical students improve their procedural skills in intubation, arterial line placement, lumbar puncture, and central line insertion. Method: The study participants were second and third year medical students. Anesthesiology residents provided the training and evaluated students' procedural skills. Two residents were present at each station to train the medical students who rotated through all 4 stations. Pre/posttraining assessment of confidence, knowledge, and procedural skills was done using a survey, a multiple-choice test, and procedural checklists, respectively. Results: In total, 24 students were trained in six 4-hour sessions. Students reported feeling significantly more confident, after training, in performing all 4 procedures on a real patient (P < .001). Paired-samples t tests indicated statistically significant improvement in knowledge scores for intubation, t(23) = -2.92, P < .001, and arterial line placement, t(23) = -2.75, P < .001. Procedural performance scores for intubation (t(23) = -17.29, P < .001), arterial line placement (t(23) = -19.75, P < .001), lumbar puncture (t(23) = -16.27, P < .001), and central line placement (t(23) = 17.25, P < .001) showed significant improvement. Intraclass correlation coefficients indicated high reliability in checklist scores for all procedures. Conclusions: The simulation sessions allowed each medical student to receive individual attention from 2 residents for each procedure. Students' written comments indicated that this training modality was well received. Results showed that medical students improved their self-confidence, knowledge, and skills in the aforementioned procedures. PMID- 29349330 TI - 'Involve Me and I Learn': Development of an Assessment Program for Research and Critical Analysis. AB - Evidence-based medical practice is best achieved by developing research understanding in medical practitioners. To this end, medical councils worldwide increasingly recognise the importance of medical schools graduating students with well-developed research skills and research capacity. To meet this need, the principles of programmatic assessment were implemented in designing a research and critical analysis curriculum and assessment program that aimed to enhance the research and critical analysis skills of medical students. The program was developed by mapping assessment tasks to a research capabilities framework that was in turn scaffolded to different levels of Miler's pyramid. The curriculum and assessments were integrated with the science, clinical, and professional aspects of the medical course. The progressive longitudinal development of research skills, with feedback and academic mentoring, culminated in the students' capacity to undertake an independent research project. Designing an assessment program for learning encouraged students to develop their research capacity by involving them in their learning. PMID- 29349331 TI - "Thank You for Giving Me a Voice!" A Longitudinal Evaluation of Patients' Experience of Partnering With Students in an Australian Medical School. AB - Background: We evaluated the patient-partner experience in a longitudinal program called Integrated Population Medicine in the Sydney Medical School to assess its acceptability. The program exposed senior medical students to the lived experience of chronic disease. Methods: We surveyed 267 people with chronic conditions recruited as patient-partners by the 2012 student cohort in a mixed methods longitudinal cohort study. Surveys were administered 'over' 18 months: before, during, and after the program. Results: A total of 155 (58%) patient partners completed the baseline survey; 52 patients returned all 3 surveys. Patient-partners remained very positive about the program across all surveys. More than 95% of respondents enjoyed interacting with the student, and most were very positive about their role in teaching the student. Three major themes emerged: willingness to help, a sense of gratitude and enjoyment, and a chance to teach and learn. Participants were willing to discuss their illness experiences and were keen to spend more time with students. Conclusions: Patients are willing participants in longitudinal patient-partner programs. They perceive benefits for themselves and others, for the health system, and for students and would like to become more actively involved in medical education. PMID- 29349332 TI - Teaching Critical Thinking in Graduate Medical Education: Lessons Learned in Diagnostic Radiology. AB - The 2014 Institute of Medicine report, Graduate Medical Education that Meets the Nation's Health Needs, challenged the current graduate medical training process and encouraged new opportunities to redefine the fundamental skills and abilities of the physician workforce. This workforce should be skilled in critically evaluating the current systems to improve care delivery and health. To meet these goals, current challenges, motivations, and educational models at the medical school and graduate medical education levels related to formal training in nonclinical aspects of medicine, especially critical thinking, are reviewed. Our diagnostic radiology training program is presented as a "case study" to frame the review. PMID- 29349334 TI - Assessing the Current Curriculum of the Nursing and Midwifery Informatics Course at All Nursing and Midwifery Institutions in Ghana. AB - The use of computers in the delivery of health care has significantly improved the way health service is delivered to clients and patients in the world. Despite the importance of computing to the delivery of health service, developing countries have not greatly benefited from it. Nursing informatics has been in existence and part of academic curriculum for the past 2 decades in some advanced countries. The Ghana Nursing and Midwifery Council introduced the nursing and midwifery informatics course during the 2015/2016 academic year. This seeks to train student nurses on the relevance of computers to health care. Two separate workshops were organised to ascertain the preparedness of tutors (teachers at the nursing and midwifery training institutions) for teaching the new nursing and midwifery informatics course as well as to compare the curriculum with other international recommendations. The nursing and midwifery informatics course is taught at the first year where students have not been introduced to the nursing processes for them to appreciate the use of nursing informatics skills. It would be better if the nursing and midwifery informatics course is rather introduced during the second year second semester when students are about going for the hands-on training at the various health care institutions. Examining the course content reveals that the practical aspect within the course is very small. It is expected that more practical contents will be introduced. Tutors are not adequately prepared to teach this new course. More training is therefore needed to make tutors fully prepared to teach both the theory and practical aspects of the nursing and midwifery informatics course. It is expected that the nursing and midwifery informatics course would prepare student nurses on all nursing informatics competencies. It is essential that nurse educators incorporate the entire concept of informatics into the education of nurses. PMID- 29349333 TI - What Influences Mental Illness? Discrepancies Between Medical Education and Conception. AB - Objective: This preliminary study examined the differences between what was taught during a formal medical education and medical students' and psychiatry residents' conceptions of notions regarding the causes and determinants of mental illness. Methods: The authors surveyed 74 medical students and 11 residents via convenience sampling. The survey contained 18 statements which were rated twice based on truthfulness in terms of a participant's formal education and conception, respectively. Descriptive statistics and a Wilcoxon signed rank test determined differences between education and conception. Results: Results showed that students were less likely to perceive a neurotransmitter imbalance to cause mental illness, as opposed to what was emphasized during a formal medical education. Students and residents also understood the importance of factors such as systemic racism and socioeconomic status in the development of mental illness, which were factors that did not receive heavy emphasis during medical education. Furthermore, students and residents believed that not only did mental illnesses have nonuniform pathologies, but that the Diagnostic and Statistical Manual of Mental Disorders also had the propensity to sometimes arbitrarily categorize individuals with potentially negative consequences. Conclusions: If these notions are therefore part of students' and residents' conceptions, as well as documented in the literature, then it seems appropriate for medical education to be further developed to emphasize these ideas. PMID- 29349335 TI - An Innovative Clinical Skills "Boot Camp" for Dental Medicine Residents. AB - During a 1-year hospital-based residency, dental residents are required to rotate through many departments including surgery, medicine, and emergency medicine. It became apparent that there was a gap between clinical skills knowledge taught in dental school curriculum and skills required for hospital-based patient care. In response, a simulation-based intensive clinical skill "boot camp" was created. The boot camp provided an intensive, interactive 3-day session for the dental residents. During the 3 days, residents were introduced to medical knowledge and skills that were necessary for their inpatient hospital rotations but were lacking in traditional dental school curriculum. Effectiveness of the boot camp was assessed in terms of knowledge base and comfort through presession and postsession surveys. According to resident feedback, this intensive introduction for the dental residents improved their readiness for their inpatient hospital based residency. PMID- 29349336 TI - Interactive Journal Club: Teaching an Old Dog New Tricks. AB - The interactive journal club incorporates basic principles of active and adult learning in a traditional education tool to maximize opportunity to develop critical thinking, communication skills, active reflection, and personal confidence in these skills. Following the choice of an appropriate article, the Designated Leader (DL) directs the discussion by presenting the title and data from the article with instructions for their analysis but without the author's text. The participants, except the DL, are viewing the article for the first time and are prompted in their review of the raw data to provide their own interpretation, discovery, and critique. Participants are challenged to become more adept at study design, data analysis, and presentation and have indicated by informal verbal feedback that they look forward to the interactive journal club as it is enjoyable, relevant, and beneficial. Implementation of the interactive journal club does not require significant training in the approach or extensive revision or preparation of course materials. PMID- 29349337 TI - The Relationship Between Method of Viewing Lectures, Course Ratings, and Course Timing. AB - Background: In recent years, medical schools have provided students access to video recordings of course lectures, but few studies have investigated the impact of this on ratings of courses and teachers. This study investigated whether the method of viewing lectures was related to student ratings of the course and its components and whether the method used changed over time. Methods: Preclinical medical students indicated whether ratings of course lectures were based primarily on lecture attendance, video capture, or both. Students were categorized into Lecture, Video, or Both groups based on their responses to this question. The data consisted of 7584 student evaluations collected over 2 years. Results: Students who attended live lectures rated the course and its components higher than students who only viewed the video or used both methods, although these differences were very small. Students increasingly watched lectures exclusively by video over time: in comparison with first-year students, second year students were more likely to watch lectures exclusively by video; in comparison with students in the first half of the academic year, students in the second half of the academic year were more likely to watch lectures exclusively by video. Conclusions: With the increase in use of lecture video recordings across medical schools, attention must be paid to student attitudes regarding these methods. PMID- 29349338 TI - The Effectiveness of Computer-Assisted Instruction to Teach Physical Examination to Students and Trainees in the Health Sciences Professions: A Systematic Review and Meta-Analysis. AB - Purpose: To explore knowledge and skill acquisition outcomes related to learning physical examination (PE) through computer-assisted instruction (CAI) compared with a face-to-face (F2F) approach. Method: A systematic literature review and meta-analysis published between January 2001 and December 2016 was conducted. Databases searched included Medline, Cochrane, CINAHL, ERIC, Ebsco, Scopus, and Web of Science. Studies were synthesized by study design, intervention, and outcomes. Statistical analyses included DerSimonian-Laird random-effects model. Results: In total, 7 studies were included in the review, and 5 in the meta analysis. There were no statistically significant differences for knowledge (mean difference [MD] = 5.39, 95% confidence interval [CI]: -2.05 to 12.84) or skill acquisition (MD = 0.35, 95% CI: -5.30 to 6.01). Conclusions: The evidence does not suggest a strong consistent preference for either CAI or F2F instruction to teach students/trainees PE. Further research is needed to identify conditions which examine knowledge and skill acquisition outcomes that favor one mode of instruction over the other. PMID- 29349339 TI - The Impact of a Revised Curriculum on Academic Motivation, Burnout, and Quality of Life Among Medical Students. AB - Objective: The purpose of this study was to determine the impact of a revised curriculum on medical student academic motivation, burnout, and quality of life. Methods: This cross-sectional comparative study involved 2 medical school cohorts of second year and fourth year medical students at The University of Auckland: a cohort under a traditional curriculum (n = 437) and a cohort under a revised curriculum (n = 446). Participants completed self-reported questionnaires measuring academic motivation, burnout, and quality of life. Two multivariate analyses of covariance (MANCOVAs) were conducted. Results: The response rate was 48%. No statistically significant differences were found between curriculum cohorts for mean scores of academic motivation, personal burnout, and quality of life. However, differences were found when comparing preclinical medical students and students in their clinical years of training. In comparison with Year 2 medical students, the MANCOVA for Year 4 students showed a significant main effect for the revised curriculum with respect to both physical and environmental quality of life. Conclusions: A revised medical curriculum had a differential effect on quality of life for Year 4 students in the latter years of medical school who are based in a clinical learning environment. PMID- 29349340 TI - Journeying to the White Coat Ceremony: A description of the people, situations and experiences that inform student visions of the physician they hope to become. AB - Little is known about the experiences that influence entering medical students' internal concepts of themselves as future physicians. During orientation to medical school, students were asked to write stories in response to the cue, "Tell a story about a person or experience that inspired you to consider a career of service in medicine." Qualitative methodology was employed to analyze 190 student stories. Thematic analysis identified descriptive details about content and allowed comparison between the students' and School's expectations. Inspirational settings, contexts, and individuals were identified. Nine different inspirational events were described. Student and School expectations for the kinds of physicians they hoped to become were generally consistent. The study demonstrates that students do indeed bring to medical school visions of the kinds of physicians they hope to become. Linking that vision with medical school activities including the White Coat Ceremony provides a bridge between medical school and students' earlier lives, thus explicitly linking orientation to professional formation. PMID- 29349341 TI - Why People Apply to Medical School in Iraq? AB - Background: The motivations behind why people choose to study medicine in Iraqi medical schools are unknown. Such information could help school pupils to make more informed career decisions and assist medical schools in enhancing the student selection process. Aims: To investigate why people choose to study medicine in Iraq. Subjects and methods: The first-year students admitted on the academic year 2015-2016 to Baghdad College of Medicine, University of Baghdad, were invited to complete a structured questionnaire, which was administered through the college electronic education portal. The data were analyzed using IBM SPSS version 21 software. Results: A total of 152 (50% response rate) students responded. Women constituted 69.1% of respondents. Most students (61.8%) had made their choice by themselves without family pressure. The most frequent reasons that affected this choice were "humanitarian reasons and a wish to provide help to others" as well as "childhood dream," "positive community appraisal of doctors," and "ready availability of work for physicians." About three-quarters (73.6%) of the students made some inquiry about medical school before making their choice, and the people asked were most frequently a medical student or a doctor. Information provided by the consulted parties was regarded as satisfactory by 64.2% of the surveyed students, had a positive value in 47.2%, and affected their decision in 34.9%. The highest proportion (42.2%) of the study sample was thinking about studying medicine since primary school. In addition, students with personal preference made their choice at a significantly younger age. Conclusions: Reasons to apply for medical schools in Iraq are similar to those in many countries. Most of the students who inquired about studying medicine had not contacted the medical school itself. PMID- 29349342 TI - No Ifs, Ands, or Buts: Leveraging Population Health to Focus on the Care of Patients Who Smoke. AB - We developed a multidisciplinary curriculum to improve our residents' proficiency with smoking cessation counseling and prescribing of nicotine replacement therapy (NRT). The curriculum included a didactic portion, informational handouts, and a panel management component during which residents did telephone outreach and clinic in-reach to address high rates of smoking among patients. Residents rated their confidence with smoking cessation counseling and clinical knowledge before and after the intervention. We also tracked the number of patients flagged in the electronic medical record as smokers, the number of patients contacted, and the number of patients who received counseling. Although we did not make statistically significant improvements in perceived confidence with prescribing NRT, we found that there is an urgent need to address smoking cessation in the primary care setting and that working with a clinical pharmacist and psychologist offered a comprehensive approach. Furthermore, by anchoring the intervention with a population health component, almost 200 patients benefited from outreach efforts. PMID- 29349343 TI - Increasing Medical Trainees' Empathy Through Volunteerism and Mentorship. AB - Background: Within medical education, there have been recent calls for increased understanding and exposure to poverty to increase trainees' empathy toward the underserved. Students participating in Michigan Cardiovascular Outcomes Research and Reporting Program research program volunteered at World Medical Relief (WMR) in Detroit, Michigan, a nonprofit organization which recycles medical equipment for developing countries and within greater Detroit. Participants' perceptions of the underserved were measured before and after the experience. Methods: Preliminary questionnaires were given to participants prior to and after exposures at WMR. Questionnaires examined participants' attitudes toward the underserved, knowledge of medical supply reuse, and their perceived ability to impact change. P values of <.025 were considered significant. Results: A total of 39 participants completed the survey, 77% previously volunteered, 33% had volunteered internationally. Participants were >4* more likely than previously to have knowledge of the variety of recycled medical supplies at WMR. Prior to volunteering, 48.7% of participants gave little thought to how excess medical supplies could be collected versus 0% after exposure. Participants were 1.5* more likely to agree that the experience was enhanced working with their peers and 2.7* more likely to consider starting their own organization/intervention for medical supply donations. Those participants that never previously volunteered were 1.3* more likely to do so with encouragement from a mentor. Conclusions: Encouraging exposure to such service programs resulted in enhanced knowledge of community resources and increased motivation to participate in outreach and belief of individual responsibility to care for the underserved. Incorporating volunteerism into traditional education programs offers the opportunity to build awareness and interest in students reaching out to the underserved. PMID- 29349344 TI - Adaptation and Evaluation of Military Resilience Skills Training for Pediatric Residents. AB - Background: An evidence-based trauma-informed resilience skills training program developed for deployed military personnel was adapted and pilot-tested with pediatric residents. We anticipated high satisfaction ratings and changes in knowledge, beliefs, and self-efficacy related to coping with stress and trauma. Methods: The intervention included 6 skill-based modules covering emotion regulation, communication with angry patients and parents, reflective narrative, inspirational goal setting, problem-solving, and developing a self-care toolbox. An optional survey was administered before and after the training. Results: After training, 76% rated resilience skills as important, 60% were satisfied, and 82% indicated the training changed how they will respond to patient-related grief and trauma. They became more likely to believe attendings are affected by patient deaths and to know what helps them cope when they disagree with the medical decision making of others, more skilled in recognizing signs of stress and trauma, and more knowledgeable about evidence-based interventions. PMID- 29349345 TI - Medical Student Perceptions of Learner-Initiated Feedback Using a Mobile Web Application. AB - Feedback, especially timely, specific, and actionable feedback, frequently does not occur. Efforts to better understand methods to improve the effectiveness of feedback are an important area of educational research. This study represents preliminary work as part of a plan to investigate the perceptions of a student driven system to request feedback from faculty using a mobile device and Web based application. We hypothesize that medical students will perceive learner initiated, timely feedback to be an essential component of clinical education. Furthermore, we predict that students will recognize the use of a mobile device and Web application to be an advantageous and effective method when requesting feedback from supervising physicians. Focus group data from 18 students enrolled in a 4-week anesthesia clerkship revealed the following themes: (1) students often have to solicit feedback, (2) timely feedback is perceived as being advantageous, (3) feedback from faculty is perceived to be more effective, (4) requesting feedback from faculty physicians poses challenges, (5) the decision to request feedback may be influenced by the student's clinical performance, and (6) using a mobile device and Web application may not guarantee timely feedback. Students perceived using a mobile Web-based application to initiate feedback from supervising physicians to be a valuable method of assessment. However, challenges and barriers were identified. PMID- 29349346 TI - Characteristics of electroencephalogram signatures in sedated patients induced by various anesthetic agents. AB - Devices that monitor the depth of hypnosis based on the electroencephalogram (EEG) have long been commercialized, and clinicians use these to titrate the dosage of hypnotic agents. However, these have not yet been accepted as standard monitoring devices for anesthesiology. The primary reason is that the use of these monitoring devices does not completely prevent awareness during surgery, and the development of these devices has not taken into account the neurophysiological mechanisms of hypnotic agents, thus making it possible to show different levels of unconsciousness in the same brain status. An alternative is to monitor EEGs that are not signal processed with numerical values presented by these monitoring devices. Several studies have reported that power spectral analysis alone can distinguish the effects of different hypnotic agents on consciousness changes. This paper introduces the basic concept of power spectral analysis and introduces the EEG characteristics of various hypnotic agents that are used in sedation. PMID- 29349347 TI - Pain measurement in oral and maxillofacial surgery. AB - Regardless of whether it is acute or chronic, the assessment of pain should be simple and practical. Since the intensity of pain is thought to be one of the primary factors that determine its effect on a human's overall function and sense, there are many scales to assess pain. The aim of the current article was to review pain intensity scales that are commonly used in dental and oral and maxillofacial surgery (OMFS). Previous studies demonstrated that multidimensional scales, such as the McGill Pain Questionnaire, Short form of the McGill Pain Questionnaire, and Wisconsin Brief Pain Questionnaire were suitable for assessing chronic pain, while unidimensional scales, like the Visual Analogue Scales (VAS), Verbal descriptor scale, Verbal rating scale, Numerical rating Scale, Faces Pain Scale, Wong-Baker Faces Pain Rating Scale (WBS), and Full Cup Test, were used to evaluate acute pain. The WBS is widely used to assess pain in children and elderly because other scales are often difficult to understand, which could consequently lead to an overestimation of the pain intensity. In dental or OMFS research, the use of the VAS is more common because it is more reliable, valid, sensitive, and appropriate. However, some researchers use NRS to evaluate OMFS pain in adults because this scale is easier to use than VAS and yields relatively similar pain scores. This review only assessed pain scales used for post operative OMFS or dental pain. PMID- 29349348 TI - The effect of tulobuterol patches on the respiratory system after endotracheal intubation. AB - Background: Endotracheal intubation during anesthesia induction may increase airway resistance (Raw) and decrease dynamic lung compliance (Cdyn). We hypothesized that prophylactic treatment with a transdermal beta2-agonist tulobuterol patch (TP) would help to reduce the risk of bronchospasm after placement of the endotracheal tube. Methods: Eighty-two American Society of Anesthesiologists (ASA) category I or II adult patients showing obstructive patterns were divided randomly into a control and a TP group (n = 41 each). The night before surgery, a 2-mg TP was applied to patients in the TP group. Standard monitors were recorded, and target controlled infusion (TCI) with propofol and remifentanil was used for anesthesia induction and maintenance. Simultaneously, end-tidal carbon dioxide, Raw, and Cdyn were determined at 5, 10, and 15 min intervals after endotracheal intubation. Results: There was no significant difference in demographic data between the two groups. The TP group was associated with a lower Raw and a higher Cdyn, as compared to the control group. Raw was significantly lower at 10 min (P < 0.05) and 15 min (P < 0.01), and Cdyn was significantly higher at 5 min (P < 0.05) and 15 min (P < 0.01) in the TP group. A trend towards a lower Raw was observed showing a statistically significant difference 5 min after endotracheal intubation (P < 0.01) in each group. Conclusions: Prophylactic treatment with TP showed a bronchodilatory effect through suppressing an increase in Raw and a decrease in Cdyn after anesthesia induction without severe adverse effects. PMID- 29349349 TI - A retrospective analysis of outpatient anesthesia management for dental treatment of patients with severe Alzheimer's disease. AB - Background: The number of patients with Alzheimer's disease is growing worldwide, and the proportion of patients requiring dental treatment under general anesthesia increases with increasing severity of the disease. However, outpatient anesthesia management for these patients involves great risks, as most patients with Alzheimer's disease are old and may show reduced cardiopulmonary functions and have cognitive disorders. Methods: This study retrospectively investigated 43 patients with Alzheimer's disease who received outpatient anesthesia for dental treatment between 2012-2017. Pre-anesthesia patient evaluation, dental treatment details, anesthetics dose, blood pressure, duration and procedure of anesthesia, and post-recovery management were analyzed and compared between patients who underwent general anesthesia or intravenous sedation. Results: Mean age of patients was about 70 years; mean duration of Alzheimer's disease since diagnosis was 6.3 years. Severity was assessed using the global deterioration scale; 62.8% of patients were in level >= 6. Mean duration of anesthesia was 178 minutes for general anesthesia and 85 minutes for intravenous sedation. Mean recovery time was 65 minutes. Eleven patients underwent intravenous sedation using propofol, and 22/32 cases involved total intravenous anesthesia using propofol and remifentanil. Anesthesia was maintained with desflurane for other patients. While maintaining anesthesia, inotropic and atropine were used for eight and four patients, respectively. No patient developed postoperative delirium. All patients were discharged without complications. Conclusion: With appropriate anesthetic management, outpatient anesthesia was successfully performed without complications for dental treatment for patients with severe Alzheimer's disease. PMID- 29349350 TI - A comparison of the effects of epinephrine and xylometazoline in decreasing nasal bleeding during nasotracheal intubation. AB - Background: Various techniques have been introduced to decrease complications during nasotracheal intubation. A common practice is to use nasal packing with a cotton stick and 0.01% epinephrine jelly. However, this procedure can be painful to patients and can damage the nasal mucosa. Xylometazoline spray can induce effective vasoconstriction of the nasal mucosa without direct nasal trauma. In this study, we aimed to compare the efficacy of these two methods. Methods: Patients were randomly allocated into two groups (n = 40 each): xylometazoline spray group or epinephrine packing group. After the induction of general anesthesia, patients allocated to the xylometazoline spray group were treated with xylometazoline spray to induce nasal cavity mucosa vasoconstriction, and the epinephrine packing group was treated with nasal packing with two cotton sticks and 0.01% epinephrine jelly. The number of attempts to insert the endotracheal tube into the nasopharynx, the degree of difficulty during insertion, and bleeding during bronchoscopy were recorded. An anesthesiologist, blinded to the intubation method, estimated the severity of epistaxis 5 min after intubation and postoperative complications. Results: No significant intergroup difference was observed in navigability (P = 0.465). The xylometazoline spray group showed significantly less epistaxis during intubation (P = 0.02). However, no differences were observed in epistaxis 5 min after intubation or postoperative epistaxis (P = 0.201). No inter-group differences were observed in complications related to nasal intubation and nasal pain. Conclusion: Xylometazoline spray is a good alternative to nasal packing for nasal preparation before nasotracheal intubation. PMID- 29349351 TI - The relationship between subjective oral health and dental fear in Korean adolescents. AB - Background: This study is aimed to evaluate the level of fear and to reduce the overall fear, thereby enabling patients to receive treatment via timely visits. Methods: In a survey conducted by 460 South Korean middle school students, we used 453 data that faithfully responded to the survey. Multiple regression analysis was conducted to investigate the factors influencing subjective oral health and dental fear. The significance level used for statistical significance was alpha = 0.05. Results: The level of fear was higher for upper grade, female students. The factors affecting dental fear were higher for gingival bleeding and dental pain. Regarding factors for dental fear affecting subjective oral health, lower fear of puncture needle and tooth removal tool resulted in higher subjective oral health. Conclusion: The study found that adolescents had higher fear of dental care when they had gingival bleeding and tooth pain. Gingival bleeding is a symptom of early gingival disease and dental pain is likely due to advanced dental caries. These results suggested that it is necessary to have a program to reduce dental fear and anxiety as well as a program to prevent dental diseases through regular periodic screening and education. PMID- 29349352 TI - Learning fiberoptic intubation for awake nasotracheal intubation. AB - Background: Fiberoptic nasotracheal intubation (FNI) is performed if it is difficult to open the mouth or if intubation using laryngoscope is expected to be difficult. However, training is necessary because intubation performed by inexperienced operators leads to complications. Methods: Every resident performed intubation in 40 patients. Success of FNI was evaluated as the time of FNI. First intubation time was restricted to 2 min 30 s. If the second attempt was unsuccessful, it was considered a failed case, and a specialist performed nasotracheal intubation. If the general method of intubation was expected to be difficult, awake intubation was performed. The degree of nasal bleeding during intubation was also evaluated. Results: The mean age of the operators (11 men, 7 women) was 27.8 years. FNI was performed in a total of 716 patients. The success rate was 88.3% for the first attempt and 94.6% for the second attempt. The failure rate of intubation in anesthetized patients was 4.9%, and 13.6% in awake patients. When intubation was performed in anesthetized patients, the failure rate from the first to fifth trial was 9.6%, which decreased to 0.7% when the number of trials increased to > 30 times. In terms of awake intubation, there was no failed attempt when the resident had performed the FNI > 30 times. The number of FNIs performed and nasal bleeding were important factors influencing the failure rate. Conclusion: The success rate of FNI increased as the number of FNI performed by residents increased despite the nasal bleeding. PMID- 29349353 TI - Estimation of optimal nasotracheal tube depth in adult patients. AB - Background: The aim of this study was to estimate the optimal depth of nasotracheal tube placement. Methods: We enrolled 110 patients scheduled to undergo oral and maxillofacial surgery, requiring nasotracheal intubation. After intubation, the depth of tube insertion was measured. The neck circumference and distances from nares to tragus, tragus to angle of the mandible, and angle of the mandible to sternal notch were measured. To estimate optimal tube depth, correlation and regression analyses were performed using clinical and anthropometric parameters. Results: The mean tube depth was 28.9 +/- 1.3 cm in men (n = 62), and 26.6 +/- 1.5 cm in women (n = 48). Tube depth significantly correlated with height (r = 0.735, P < 0.001). Distances from nares to tragus, tragus to angle of the mandible, and angle of the mandible to sternal notch correlated with depth of the endotracheal tube (r = 0.363, r = 0.362, and r = 0.546, P < 0.05). The tube depth also correlated with the sum of these distances (r = 0.646, P < 0.001). We devised the following formula for estimating tube depth: 19.856 + 0.267 * sum of the three distances (R2 = 0.432, P < 0.001). Conclusion: The optimal tube depth for nasotracheally intubated adult patients correlated with height and sum of the distances from nares to tragus, tragus to angle of the mandible, and angle of the mandible to sternal notch. The proposed equation would be a useful guide to determine optimal nasotracheal tube placement. PMID- 29349354 TI - Awake intubation in a patient with huge orocutaneous fistula: a case report. AB - Mask ventilation, the first step in airway management, is a rescue technique when endotracheal intubation fails. Therefore, ordinary airway management for the induction of general anesthesia cannot be conducted in the situation of difficult mask ventilation (DMV). Here, we report a case of awake intubation in a patient with a huge orocutaneous fistula. A 58-year-old woman was scheduled to undergo a wide excision, reconstruction with a reconstruction plate, and supraomohyoid neck dissection on the left side and an anterolateral thigh flap due to a huge orocutaneous fistula that occurred after a previous mandibulectomy and flap surgery. During induction, DMV was predicted, and we planned an awake intubation. The patient was sedated with dexmedetomidine and remifentanil. She was intubated with a nasotracheal tube using a video laryngoscope, and spontaneous ventilation was maintained. This case demonstrates that awake intubation using a video laryngoscope can be as good as a fiberoptic scope. PMID- 29349355 TI - Facial blanching after inferior alveolar nerve block anesthesia: an unusual complication. AB - The present case report describes a complication involving facial blanching symptoms occurring during inferior alveolar nerve block anesthesia (IANBA). Facial blanching after IANBA can be caused by the injection of an anesthetic into the maxillary artery area, affecting the infraorbital artery. PMID- 29349356 TI - QT-interval prolongation due to medication found in the preoperative evaluation. AB - QT prolongation is an electrocardiographic change that can lead to lethal arrhythmia. Acquired QT prolongation is known to be caused by drugs and electrolyte abnormalities. We report three cases in which the prolonged QT interval was improved at the time of operation by briefly discontinuing the drugs suspected to have caused the QT prolongation observed on preoperative electrocardiography. The QTc of cases 1, 2, and 3 improved from 518 to 429 ms, 463 to 441 ms, and 473 to 443 ms on discontinuing the use of a gastrointestinal prokinetic agent, a proton pump inhibitor, and a molecular targeted drug, respectively. These cases were considered to have drug-induced QT prolongation. We reaffirmed that even drugs administered for conditions unrelated to cardiac diseases can have adverse side effect of QT prolongation. In conclusion, our cases indicate that dental surgeons should be aware of the dangerous and even potentially lethal side effects of QT prolongation. For safe oral and maxillofacial surgery, cooperation with medical departments in various fields is important. PMID- 29349358 TI - 95gTc and 96gTc as alternatives to medical radioisotope 99mTc. AB - We studied 95gTc and 96gTc as alternatives to the medical radioisotope 99mTc. 96gTc (95gTc) can be produced by (p, n) reactions on an enriched 96Mo (95Mo) target with a proton beam provided by a compact accelerator such as a medical cyclotron that generate radioisotopes for positron emission tomography (PET). The gamma-rays are measured with an electron-tracking Compton camera (ETCC). We calculated the relative intensities of the gamma-rays from 95gTc and 96gTc. The calculated gamma-ray intensity of a 96gTc (95gTc) nucleus is as high as 63% (70%) of that of a 99mTc nucleus. We also calculated the patient radiation doses of 95gTc and 96gTc, which were larger than that of 99mTc by a factor of 2-3 based on the applied assumptions. A medical PET cyclotron which can provide proton beams with energies of 11-12 MeV and a current of 100 MUA can produce 12 GBq (39 GBq) of 96gTc (95gTc) for operation time of 8 h, which can be used for 240 (200) diagnostic scans. PMID- 29349359 TI - Resensitization of methicillin-resistant Staphylococcus aureus by amoxapine, an FDA-approved antidepressant. AB - The rapid increase in bacterial resistance to antibiotics is a global healthcare crisis. Non-antibiotic pharmaceuticals that have attained approval by the United States Food and Drug Administration have the potential to be repurposed as bacterial resistance-modifying agents and therefore could become valuable resources in our battle against antibiotic-resistant microbes. Amoxapine is a tetracyclic antidepressant used in the treatment of major depressive disorder. Here we demonstrate the ability of amoxapine to resensitize methicillin-resistant Staphylococcus aureus strain ATCC 43300 to oxacillin in both agar diffusion and broth microdilution assays. Amoxapine also reduced the bacterial cleavage of nitrocefin in a dose-dependent manner, suggesting that it may exert its adjuvant effects through reduction of beta-lactamase activity. PMID- 29349357 TI - Comprehensive cytotoxicity studies of superparamagnetic iron oxide nanoparticles. AB - Recently lots of efforts have been taken to develop superparamagnetic iron oxide nanoparticles (SPIONs) for biomedical applications. So it is utmost necessary to have in depth knowledge of the toxicity occurred by this material. This article is designed in such way that it covers all the associated toxicity issues of SPIONs. It mainly emphasis on toxicity occurred at different levels including cellular alterations in the form of damage to nucleic acids due to oxidative stress and altered cellular response. In addition focus is been devoted for in vitro and in vivo toxicity of SPIONs, so that a better therapeutics can be designed. At the end the time dependent nature of toxicity and its ultimate faith inside the body is being discussed. PMID- 29349361 TI - Endovascular repair of an innominate artery pseudoaneurysm using the Valiant Mona LSA branched graft device. AB - A 60-year-old woman involved in a motor vehicle collision presented with a traumatic pseudoaneurysm of the innominate artery origin in addition to multiple concomitant injuries. She was classified as a high-risk candidate for open repair. An experimental thoracic branched graft device was used for coverage of the injury with the addition of a right carotid-to-left carotid-to-left subclavian artery bypass. Follow-up imaging showed resolution of the pseudoaneurysm and patency of her bypass grafts. This is the first described use of the Mona LSA Branch Thoracic Stent Graft System (Medtronic, Minneapolis, Minn) in the innominate artery. PMID- 29349360 TI - ULTRASOUND INDUCED MICROBUBBLE CAVITATION FOR THE TREATMENT OF CATHETERIZATION INDUCED VASOSPASM. PMID- 29349362 TI - Bridging stent repair of type III endoleak causing aortocaval fistula after branched aortic endovascular repair. AB - A 62-year-old man presented to our department with abdominal pain and diarrhea for 3 weeks on a background of previous branched endovascular repair for a thoracoabdominal aneurysm. A triple-phase computed tomography scan of his abdomen and pelvis showed a large aortocaval fistula caused by a type III endoleak from a dislodged superior mesenteric artery stent. He was successfully treated with a BeGraft (Bentley Innomed, Hechingen, Germany) by using an endovascular technique. PMID- 29349363 TI - A novel technique combining laparoscopic and endovascular approaches using image fusion guidance for anterior embolization of type II endoleak. AB - Type II endoleak (T2E) leading to aneurysm sac enlargement is one of the challenging complications associated with endovascular aneurysm repair. Recent guidelines recommend embolization of T2E associated with aneurysmal sac enlargement. Various percutaneous and endovascular techniques have been reported for embolization of T2E. We report a novel technique for T2E embolization combining laparoscopic and endovascular approaches using preoperative image fusion. We believe our technique provides a more direct access to the lumbar feeding vessels that is typically challenging with transarterial or translumbar embolization techniques. PMID- 29349364 TI - Endovascular repair of a thoracic aortic transection 31 years after blunt trauma. PMID- 29349365 TI - Debridement of atheroma in the proximal clamp site under hypothermic circulatory arrest for repair of abdominal aortic aneurysm with severe atherosclerosis. AB - Postoperative renal and other ischemic complications due to atheroembolization after clamping of the proximal site of an abdominal aortic aneurysm are catastrophic. We present here a method of debridement of atheroma and clamping under hypothermic circulatory arrest to avoid iatrogenic atheroembolization. PMID- 29349366 TI - An 18-cm unruptured abdominal aortic aneurysm. AB - Abdominal aortic aneurysm (AAA) is a significant source of morbidity and ranked by the Centers for Disease Control and Prevention as the 15th leading cause of death among adults aged 60 to 64 years. Size confers the largest risk factor for aneurysm rupture, with aneurysms >6 cm having an annual rupture risk of 14.1%. We present the case of a 60-year-old man found on ultrasound imaging at a health fair screening to have a 15-cm AAA. Follow-up computed tomography angiography revealed an 18-cm * 10-cm unruptured, infrarenal, fusiform AAA. Giant AAAs, defined as >11 cm, are rarely described in the literature. Our patient underwent successful transperitoneal AAA repair with inferior mesenteric artery reimplantation and was discharged home on operative day 6. We believe this case represents one of the largest unruptured AAAs in the literature and demonstrates the feasible approach for successful repair. PMID- 29349367 TI - A rare anatomic variant of a single-conduit supraclavicular cephalic arch draining into the external jugular vein presenting with recurrent arteriovenous fistula stenosis in a hemodialysis patient. AB - The cephalic arch is a common location of stenosis, especially in brachiocephalic fistulas. The cephalic arch has a number of anatomic variations. Cephalic arch stenoses are often resistant and have poor primary patency. Here we describe an unusual case of a hemodialysis patient with a single-conduit supraclavicular cephalic arch draining into the external jugular vein presenting with recurrent cephalic arch stenoses and external jugular vein stenosis. In our view, extrinsic compression by the clavicle may contribute to the high rate of recurrence, the lack of complete dilation of even high-pressure balloons, and a theoretically heightened risk of rupture when cutting balloons are used. PMID- 29349368 TI - Severe generalized dermatitis in a nickel-allergic patient with a popliteal artery nitinol stent. AB - We present the case of a patient who developed a full-body desquamating macular papular, pruritic rash after endovascular placement of a popliteal artery nitinol stent for acute limb ischemia. The rash was resistant to high-dose steroid and immunosuppressive treatment and intensive topical treatment. Patch testing revealed nickel allergy. The stented arterial segment was removed, with significant improvement in his symptoms that allowed the cessation of prednisone and topical treatments. The epidemiology, pathophysiology, and clinical effect of nickel allergy are discussed in addition to the use of nickel-alloy stents. PMID- 29349369 TI - Potentially stress-induced acute splanchnic segmental arterial mediolysis with a favorable spontaneous outcome. AB - A 62-year-old woman presented with hemithoracic anesthesia and acute abdominal pain following a violent psychological stress. Magnetic resonance imaging showed a thoracic hematoma with arachnoiditis of the spinal cord. Tomography revealed a typical aspect of segmental arterial mediolysis with multiple aneurysms and stenoses of the splanchnic arteries, confirmed by abdominal arteriography. There was no argument for hereditary, traumatic, atherosclerotic, infectious, or inflammatory arterial disease. Segmental arterial mediolysis was diagnosed on the basis of the radiologic data and probably involved both medullary and splanchnic arteries. The patient spontaneously recovered and was in good health 18 months later. PMID- 29349370 TI - Endovascular treatment with flow-diverting stents of symptomatic superior mesenteric artery after dissection aneurysm. AB - Isolated and spontaneous superior mesenteric artery dissection is a rare cause of acute abdominal pain. Whereas there is widespread consensus on conservative treatment of asymptomatic forms, revascularization would seem indicated in symptomatic complicated cases. A 73-year-old man presented with worsening epigastric pain. A computed tomography scan revealed an isolated and spontaneous superior mesenteric artery dissection with aneurysmal evolution of the false lumen, involving multiple side branches. The postdissection aneurysm was treated by endovascular exclusion with flow-diverting stents. The abdominal pain was completely relieved, and the patient remained asymptomatic at follow-up. PMID- 29349371 TI - External ventricular drain as a nontraumatic suction device in carotid endarterectomy. AB - Carotid endarterectomy is a commonly performed operation to remove plaque at the region of the carotid bifurcation. We present our technique to keep the field clear and to minimize potential trauma to the carotid using a neurosurgical external ventricular drain passed behind the common carotid and placed in the dependent position under the arteriotomy. PMID- 29349372 TI - Successful off-label use of the GORE EXCLUDER Iliac Branch Endoprosthesis to preserve gluteal perfusion during staged endovascular repair of bilateral isolated hypogastric aneurysms. AB - Endovascular repair of iliac artery aneurysms has emerged as an alternative to traditional open surgical repair. Although there is little consensus on indications to preserve hypogastric blood flow during aneurysm repair, it is well understood that complications from bilateral hypogastric occlusion may be significant. The GORE EXCLUDER Iliac Branch Endoprosthesis (W. L. Gore and Associates, Flagstaff, Ariz) received United States Food and Drug Administration approval in March 2016 for treatment of common iliac artery and aortoiliac aneurysms. This case report discusses an off-label use of GORE EXCLUDER Iliac Branch Endoprosthesis to maintain pelvic perfusion during treatment of bilateral internal iliac artery aneurysms without surrounding aortoiliac pathology. PMID- 29349373 TI - Lower extremity compartment syndrome after elective percutaneous fenestrated endovascular repair of an abdominal aortic aneurysm. AB - Ischemic complications after fenestrated endovascular aortic aneurysm repair (FEVAR) can result in significant morbidity and mortality. We present a case of a 65-year-old man who underwent a FEVAR complicated by bilateral lower extremity compartment syndrome requiring four-compartment fasciotomies. This ischemic complication was likely caused by sheath occlusion because the patient had no evidence of arterial injury or distal plaque embolization. This case highlights the importance of careful postoperative monitoring after FEVAR, because the larger sheaths required can be occlusive and result in lower extremity ischemia, even for relatively short cases. PMID- 29349374 TI - Utilization of arterial grafts in foot replantation. AB - Our subject is a 36-year-old man who presented to the emergency department with bilateral lower extremity amputation at the level of the distal third of the tibia after a car accident. Surgery was planned for below-knee amputation of the right lower extremity and replantation of the left foot. The arteries dissected from the iatrogenically amputated segment were used as grafts to repair vascular gaps during the replantation. The patient's follow-up had been problem free. We concluded that whenever possible, amputated parts unsuitable for replantation should be examined thoroughly and neurovascular structures that might be used as grafts should be preserved. PMID- 29349375 TI - The use of bovine pericardial patch for vascular reconstruction in infected fields for transplant recipients. AB - Infectious vascular complications affecting transplant recipients may lead to severe morbidity and graft loss. This is a retrospective review of vascular repair with bovine pericardial patch (BPP) in infected fields for immunosuppressed patients. BPP was used as either a patch or an interposition graft. Five cases of arterial reconstruction in infected fields using BPP were performed. There were no complications related to bleeding, thrombosis, or recurrent infection. In our limited experience, the use of BPP as a vascular patch is successful, and it represents an alternative when vascular reconstruction is needed in the context of infected fields. PMID- 29349376 TI - Directional tip control technique for optimal stent graft alignment in angulated proximal aortic landing zones. AB - Angulated anatomy in the aorta, such as tortuous infrarenal aortic necks or steep aortic arches, is a significant challenge for endovascular aortic repair because it often causes inadequate sealing and fixation, which may lead to treatment failure. We have developed a technique using off-the-shelf equipment to precisely control the deployment of stent grafts in challenging landing zones. The key of this technique is to create a through-and-through wire between two access sites and to use a guiding device over the wire. This technique is best used with stent grafts without nose cones. We present an endovascular aneurysm repair case and a thoracic endovascular aortic repair case with challenging proximal landing zones treated by this technique. In both cases, technical success was attained, and follow-up imaging demonstrated well-aligned stent grafts. Our directional tip control technique is easy and effective. It can be a good technical solution for endovascular aortic treatment in angulated anatomy. PMID- 29349377 TI - Emergency thoracic endovascular aortic repair with celiac artery coverage in hereditary hemorrhagic telangiectasia. AB - Celiac artery (CA) coverage during thoracic endovascular aortic repair has been demonstrated to be a feasible and effective strategy for selected cases. However, there is a potential risk of ischemic complications due to CA coverage in patients with certain types of hereditary hemorrhagic telangiectasia (HHT). Herein, we report a case of thoracoabdominal aortic rupture in a patient with HHT that was successfully treated with emergency thoracic endovascular aortic repair covering the CA preceded by hepatic artery bypass. We also review the hepatic circulatory derangements and unique considerations in the surgical management of HHT. PMID- 29349378 TI - Hand-arm vibration syndrome: A rarely seen diagnosis. AB - Hand-arm vibration syndrome (HAVS) is a collection of sensory, vascular, and musculoskeletal symptoms caused by repetitive trauma from vibration. This case report demonstrates how to diagnose HAVS on the basis of history, physical examination, and vascular imaging and its treatment options. A 41-year-old man who regularly used vibrating tools presented with nonhealing wounds on his right thumb and third digit. Arteriography revealed occlusions of multiple arteries in his hand with formation of collaterals. We diagnosed HAVS, and his wounds healed after several weeks with appropriate treatment. HAVS is a debilitating condition with often irreversible vascular damage, requiring early diagnosis and treatment. PMID- 29349379 TI - Common femoral vein stent placement in a frozen abdomen causing acute limb ischemia. AB - A 73-year-old woman was admitted for left groin bleeding through an open wound near a fungating left inguinal mass from advanced anal carcinoma. The interventional radiology service placed left iliac vein and common femoral vein stents as there was concern for communication and involvement of the left common femoral vein with the open wound, contributing to groin hemorrhage. After the procedure, the patient developed limb ischemia related to mass effect of the stent on the left common femoral vein stent artery. She was revascularized by placement of a left common femoral vein stent artery stent. This report describes a viable option for revascularization in the rare occurrence of limb ischemia related to venous stenting. PMID- 29349380 TI - Type IV popliteal arterial entrapment associated with an osteochondroma. AB - Popliteal artery entrapment syndrome is a rare cause of peripheral vascular disease, often affecting young adults. Multiple studies have shown that osteochondromas can cause vascular injury. Intermittent compression, pseudoaneurysm, thrombosis, distal embolism, and venous thrombosis have all been described as possible complications. Here we present a case of popliteal arterial entrapment type IV with an associated tibial osteochondroma. PMID- 29349381 TI - Acute infection of Viabahn stent graft in the popliteal artery. AB - Peripheral stents are increasingly used for treatment of peripheral arterial disease, yet all implanted devices are potentially at risk for infection. We describe a 51-year-old man who underwent stenting in the femoropopliteal artery and presented 3 days later with leg pain, fever, and evidence of peripheral stigmata of embolization. Blood cultures grew methicillin-resistant Staphylococcus aureus and remained persistently positive despite antibiotic therapy. At surgical exploration, the popliteal artery had essentially been disintegrated by the infection, with only visible stent graft maintaining arterial continuity. Acute stent graft infections are rare and must be managed promptly to reduce morbidity. PMID- 29349382 TI - Intravascular ultrasound as a novel tool for the diagnosis and targeted treatment of functional popliteal artery entrapment syndrome. AB - Functional popliteal artery entrapment syndrome can be difficult to diagnose, as the imaging modalities presently employed are designed to detect anatomic entrapment. We describe a novel imaging technique to aid in diagnosis in this cohort. A 22-year-old cyclist presented with exercise-limiting claudication. Magnetic resonance angiography with provocative maneuvers was nondiagnostic. Digital subtraction angiography revealed long-segment occlusion of the popliteal artery with plantar flexion; however, the specific site of compression remained unclear. Intravascular ultrasound allowed specific localization of compression and further confirmed the diagnosis. Thus, we report this as an adjunctive imaging modality to definitively diagnose functional popliteal artery entrapment syndrome and to assist in operative planning. PMID- 29349383 TI - Endovascular extraction of a migrated large self-expanding laser-cut renal venous stent from the right ventricle. AB - Endovascular stent placement for decompression of an entrapped left renal vein (LRV) between the aorta and superior mesenteric artery is an alternative to surgical decompression for treating the nutcracker syndrome. However, an interventional approach may be challenging because of the unfavorable configuration of the LRV, leading to insufficient stent anchoring. We provide a case of a life-threatening stent migration from the LRV into the right ventricle 2 days after stent placement and its endovascular retrieval. PMID- 29349384 TI - Acute hemifacial ischemia as a late complication of carotid stenting. AB - Concerns about carotid artery stenting (CAS) center primarily on procedural complications like acute occlusion, stroke, and long-term intrastent restenosis. External carotid artery (ECA) thrombosis is observed during CAS follow-up, but it often remains asymptomatic or, at worst, results in jaw claudication. We report here a case of late occlusion of the ECA after CAS with symptoms of acute homolateral facial ischemia as well as pain, cyanosis, tongue numbness, and skin coldness. The patient was submitted to local thrombolysis and balloon angioplasty with regression of symptoms after recanalization. With this report, we add a caveat about blockage of the ECA ostium during CAS. PMID- 29349385 TI - Novel, non-gadolinium-enhanced magnetic resonance imaging technique of pedal artery aneurysms. AB - Non-gadolinium-enhanced magnetic resonance angiography (nMRA) is a noninvasive, contrast-free imaging modality used for visualizing pedal arterial anatomy. We report application of the nMRA technique for detailed arterial imaging in a patient with dorsalis pedis aneurysm. Compared with digital subtraction angiography, we demonstrate that nMRA provides sufficient arterial detail needed to develop a complex operative plan before vascular intervention without risk of contrast agent or ionizing radiation exposure. PMID- 29349386 TI - Successful use of retrograde branched extension limb assembling technique in endovascular repair of pararenal abdominal aortic aneurysm. AB - Surgeon-modified retrograde branched extension limb assembling technique and bridged endografts were successfully used to exclude an asymptomatic pararenal abdominal aortic aneurysm and to reconstruct the superior mesenteric artery and bilateral renal arteries in a case with high-grade celiac artery stenosis, nondilated aorta above the superior mesenteric artery, and large lumen below the renal arteries. In patient-specific models for hemodynamics analysis, enhanced flow diversion to visceral arteries up to 6-month follow-up confirmed treatment feasibility; however, endograft configurations could be improved to avoid sharp corners at bifurcations, thereby ensuring smooth flow transport and possibly reducing risk for endograft narrowing or the development of thrombosis. PMID- 29349387 TI - Regarding "Endograft limb trimming and resheathing can be an alternative for emergent aortic repair without adequate stent graft availability". PMID- 29349388 TI - Atypical infrarenal aortic coarctation. PMID- 29349389 TI - Reply. PMID- 29349390 TI - Durability of the Viabahn stent graft after axillary artery pseudoaneurysm exclusion. AB - Pseudoaneurysm formation caused by iatrogenic arterial injury during a regional anesthetic block is a rare complication. We report a case of a 56-year-old male patient who developed an axillary artery pseudoaneurysm caused by brachial plexus block performed for an upper extremity dialysis access operation. Successful repair of this pseudoaneurysm was achieved with endovascular stent graft exclusion. The repaired axillary artery with the stent graft remained patent after 10 years of follow-up. The successful long-term patency of this treatment and a strategy to potentially avoid this complication are discussed. PMID- 29349391 TI - Inguinal pain and fullness due to an intravascular leiomyoma in the external iliac vein. AB - Intravascular leiomyomatosis (IVL) is a benign smooth muscle tumor that evolves from the pelvic veins and can spread to the central veins and heart. Cardiac involvement is the most commonly reported presentation. Initial diagnosis is difficult, and IVL is commonly misdiagnosed as thrombus or atrial myxoma. Appropriate imaging and a high clinical suspicion are required for accurate diagnosis. We report a rare case of IVL in the external iliac vein that recurred 4 years after hysterectomy. Only four cases have been reported in the literature to involve the external iliac vein as it has no direct connection to pelvic venous drainage. PMID- 29349392 TI - Ovarian hyperstimulation syndrome as a rare cause of acute bilateral limb and renal ischemia. AB - Ovarian hyperstimulation syndrome (OHS) is a rare and potentially fatal condition, particularly when it is associated with arterial thromboembolic events. We present a case of acute ischemia of both lower limbs and left kidney due to OHS. The clinical presentation included voluminous ascites, pleural effusion, and significant ovarian enlargement. Subsequently, bilateral severe acute limb ischemia and left kidney segmental infarction were established. Surgical thromboembolectomy and muscle debridement of the lower limbs were necessary, and the patient recovered with partial limitations. A high index of suspicion and timely treatment are essential to minimize consequences of arterial thrombosis associated with OHS. PMID- 29349393 TI - Posterior tibial artery aneurysm in a child with SMAD3 mutation. AB - Peripheral arterial aneurysms in children are uncommon. We report a 6-year-old boy who developed a right posterior tibial artery aneurysm with symptoms including pain and pulsatile tenderness. His genetic testing revealed a SMAD3 mutation, a condition associated with familial aortic aneurysm, early-onset of osteoarthritis, and peripheral aneurysms. The posterior tibial artery aneurysm was treated with surgical resection and primary anastomosis. The patient remained free of symptoms or aneurysm recurrence in his tibial artery 2 years later. This represents the first reported case of pediatric tibial artery aneurysm linked to a SMAD3 mutation. PMID- 29349394 TI - Infrared thermography in the diagnosis and management of vasculitis. AB - Vasculitis is a clinical condition with associated diagnostic challenges due to nonspecific symptoms and lack of a confirmatory imaging modality. We report a case of a 39-year-old female patient who developed generalized malaise, lethargy, and headache. Laboratory evaluation showed elevated inflammatory markers. Conventional imaging studies including computed tomography and carotid duplex ultrasound were unremarkable. Infrared thermography revealed enhanced thermographic signals in the left carotid artery and aortic arch. Corticosteroid therapy was commenced, and the patient responded well. Follow-up infrared thermography at 6 months showed complete resolution of the thermographic pattern, and the patient remained symptom free. PMID- 29349395 TI - Delayed migration of a thrombosed aortic endograft within a thrombosed aneurysm sac resulting in continued sac expansion and rupture. AB - We present the case of delayed migration of a thrombosed aortic endograft within a thrombosed aneurysm sac that expanded and ruptured. Dilation of the aortic neck likely led to endograft migration and exposure of the occluded endograft and aneurysm sac to systemic pressure. Although no endoleak was identified, a key finding on ultrasound showed mobility of the sac thrombus. This may be an indicator of flow within the sac that may predict potential for rupture. Despite thrombosis of the aortic sac and endograft, the risk of rupture still lingers, and thus continued surveillance of occluded endografts may be prudent. PMID- 29349396 TI - Isolated lower extremity vasculitis leading to progressive critical limb ischemia. AB - Giant cell arteritis is a large- and medium-vessel vasculitis that has been described as a systemic disease process with disseminated vessel involvement. Advances in vascular imaging techniques have demonstrated that involvement of the large vessels of the upper and lower limbs may be more prevalent than was once thought, although the clinical implications of this are unknown. Isolated lower extremity claudication without systemic or classic cranial symptoms, especially as a primary manifestation of giant cell arteritis, is rare. We present the case of a patient with isolated bilateral limb claudication that rapidly progressed to critical limb ischemia requiring urgent surgical intervention after steroid therapy. Our patient has consented to the publication of this report. PMID- 29349397 TI - Femoral artery embolization of a thoracic stray bullet. AB - Arterial bullet embolization after a thoracic gunshot wound represents a diagnostic and therapeutic challenge. The absence of an apparent exit wound should alert the clinician. Cardiac bullet injuries are mostly fatal. However, in some cases, patients may remain stable, and conservative management can be an acceptable strategy. We present a case report of a 7.62- * 39-mm thoracic stray bullet that embolized to the femoral artery. PMID- 29349398 TI - Unexplained rupture after endovascular aneurysm repair. AB - We present a case of a 70-year-old man who was admitted with rupture of an abdominal aneurysm 4 years after endovascular aneurysm repair. He was compliant with yearly follow-up computed tomography angiography. One month earlier, his computed tomography angiogram showed perfect exclusion of the aneurysm and no endoleak. We explanted the stent graft and confirmed effective sealing, and the graft was intact. We found no signs of infection during 2 years of follow-up. This rupture is nonpredictable and unexplained and illustrates that unremarkable imaging does not guarantee prevention of rupture. This case shows that the ultimate failure of endovascular aneurysm repair cannot be prevented despite surveillance protocols. PMID- 29349399 TI - Subclavian steal syndrome without subclavian stenosis. AB - Subclavian steal syndrome (SSS) has been well described in the setting of subclavian stenosis. We describe an unusual case of SSS caused by a high-flow arteriovenous dialysis fistula in the absence of subclavian stenosis, provide a review of the literature, and propose that arteriovenous fistula-induced SSS is an underdiagnosed cause of syncope in this population of patients. PMID- 29349400 TI - Single-session total endovascular iliocaval reconstruction with stent grafting for the treatment of inferior vena cava agenesis and concurrent iliac venous aneurysm rupture. AB - Iliac venous aneurysms are rare vascular abnormalities that may be manifested by abdominal masses, pelvic tenderness, or hypovolemia and may lead to rupture, thrombosis, pulmonary embolism, paradoxical embolism, or death. Inferior vena cava agenesis, like venous aneurysm, is an uncommon condition that may present with deep venous thrombosis. This report describes a patient with inferior vena cava agenesis and iliac venous aneurysm rupture treated with emergent iliocaval reconstruction and endovascular stent graft placement. PMID- 29349401 TI - Staged reconstruction of the inferior vena cava after gunshot injury. AB - A 23-year-old man with a gunshot injury to the abdomen and cardiac arrest requiring emergency department thoracotomy had a transection of the distal inferior vena cava (IVC) and small bowel injury. Because of persistent hemorrhagic shock, the IVC was ligated. During the next 3 days, he developed worsening bilateral leg edema. He was taken back for reanastomosis of his small bowel and reconstruction of the IVC using autologous femoral vein harvested from the right leg. We think that patients requiring ligation of the vena cava with worsening leg edema can benefit from a staged reconstruction of the IVC. PMID- 29349402 TI - Transposition of the persistent sciatic artery for lower limb revascularization after resection of an embolizing proximal sciatic artery aneurysm. AB - We present a novel surgical technique for lower limb revascularization after resection of an aneurysm of the persistent sciatic artery that had led to recurrent peripheral embolization and severe ischemia. The superficial femoral artery in this patient was hypoplastic, and the sciatic artery continued into the popliteal artery as the source of blood supply to the lower leg. For revascularization, we used the distally pedicled healthy two-thirds of the persistent sciatic artery, transposed it from its posterior position to a nearly anatomic anteromedial position, and anastomosed it to the proximal superficial femoral artery. PMID- 29349403 TI - A novel hybrid left renal vein transposition and endovascular stenting technique for the treatment of posterior nutcracker syndrome. AB - Posterior nutcracker syndrome occurs when a retroaortic left renal vein becomes compressed between the abdominal aorta and the lumbar spine. Although open surgical approaches remain the treatment of choice, endovascular stenting has been used successfully. We describe a case of a 28-year-old man who presented with microscopic hematuria, left-sided flank pain, and testicular swelling. Computed tomography findings were consistent with posterior nutcracker syndrome. He underwent a novel hybrid operation that included left renal vein transposition followed by endovascular stenting. Repeated imaging at 3 and 12 months revealed a patent stent with complete resolution of symptoms. PMID- 29349404 TI - External jugular vein thrombosis secondary to deep tissue neck massage. AB - An 85-year-old man presented with an acute asymptomatic lateral neck mass in the context of deep tissue neck massages during the past year. He was referred to vascular surgery after an ultrasound examination of the neck revealed a thrombus in the external jugular vein. His past medical history and comorbidities were noncontributory. A multidisciplinary team of vascular surgeons and hematologists did not recommend any anticoagulation, given that the patient did not have any risk factors for thrombosis as well as normal D-dimer levels. The patient was maintained on his previous dose of aspirin (81 mg daily). PMID- 29349405 TI - Pseudoaneurysm of the external iliac artery is a rare late complication after total hip arthroplasty. AB - Vascular injury as a delayed complication of total hip arthroplasty (THA) is rare. We present a case of pseudoaneurysm of the external iliac artery due to chronic irritation from a prominent bone spicule occurring 2 years after revision THA. We successfully managed the patient with open repair, and there has been no sign of recurrence in the 2 years since the previous surgery. This report suggests that patients who have undergone THA should be followed up carefully and assessed for vascular injuries even after a substantial time. PMID- 29349406 TI - Thrombolytic therapy for critical limb ischemia in a Jehovah's Witness with severe anemia. AB - A patient's refusal to receive blood products can pose both clinical and ethical challenges to the surgeon. In this report, we review the case of a Jehovah's Witness presenting with critical lower limb ischemia and severe anemia for whom the decision of whether to perform thrombolytic therapy was complicated by his refusal to accept blood products. The case demonstrates that thrombolytic therapy can produce favorable results in severely anemic patients even when transfusion is not an option. We conclude that offering thrombolytic therapy in this context is a reasonable therapeutic option from both a clinical and ethical perspective. PMID- 29349407 TI - Endovascular recanalization of occluded superior mesenteric artery using retrograde access through the inferior mesenteric artery. AB - Symptomatic occlusion of the superior mesenteric artery can be treated by open repair, hybrid procedure, or endovascular revascularization. In most cases, endovascular procedures are done by the antegrade approach. We report a case of a 67-year-old woman who presented with acute-on-chronic mesenteric ischemia successfully treated by retrograde endovascular recanalization of an occluded common hepatomesenteric trunk through the inferior mesenteric artery and arc of Riolan. PMID- 29349408 TI - Infolding of fenestrated endovascular stent graft. AB - We report a case of infolding of a fenestrated stent graft involving the visceral vessel segment after a juxtarenal abdominal aorta aneurysm repair. The patient remains free of any significant endoleak, and the aortic sac has shown regression. The patient remains asymptomatic, with no abdominal pain, with normal renal function, and without ischemic limb complications. We hypothesize that significant graft oversizing (20%-30%) with asymmetric engineering of the diameter-reducing ties may have contributed to the infolding. Because of the patient's asymptomatic nature and general medical comorbidities, further intervention was deemed inappropriate as the aneurysmal sac is regressing despite the infolding. PMID- 29349409 TI - Salvage of bilateral renal artery occlusion after endovascular aneurysm repair with open splenorenal bypass. AB - We report renal salvage maneuvers after accidental bilateral renal artery coverage during endovascular aneurysm repair of an infrarenal abdominal aortic aneurysm. A 79-year-old man with an infrarenal abdominal aortic aneurysm was treated with endovascular aneurysm repair. Completion angiography demonstrated coverage of the renal arteries. Several revascularization techniques were attempted, including endograft repositioning and endovascular stenting through the femoral and brachial approach. The patient eventually underwent open splenorenal bypass with a Y Gore-Tex graft (W. L. Gore & Associates, Flagstaff, Ariz). After 3 months, computed tomography showed no evidence of endoleak and patent renal arteries. Renal function was well maintained, and the patient did not require dialysis. PMID- 29349410 TI - Rupture of abdominal aortic aneurysm between early and late phases of enhanced computed tomography. PMID- 29349411 TI - Takayasu arteritis with middle aortic syndrome and mesenteric ischemia treated by aortic stenting. AB - A 48-year-old woman suffering from Takayasu arteritis presented with middle aortic syndrome consisting of abdominal pain, refractory hypertension with pulmonary edema and pleural effusions, and lower limb ischemia. She failed to improve with high-dose steroid therapy and underwent endovascular stenting of two severe stenoses in the supraceliac and infrarenal aorta. Her symptoms resolved and hypertension improved after the procedure. PMID- 29349412 TI - Treatment of a symptomatic intrathoracic internal carotid artery. AB - Intrathoracic common carotid artery bifurcations are an anatomic anomaly with such rarity that only six cases have been reported to date. The true incidence of and preferred treatment options for a diseased intrathoracic common carotid artery bifurcation or internal carotid artery (ICA) have not been clearly described. This case report describes a 72-year-old man who experienced a postoperative right hemispheric stoke after an aortic valve replacement, radiofrequency maze procedure, and left atrial appendage clip. Postoperative cerebrovascular evaluation revealed a severely diseased intrathoracic ICA that was treated by ligation of the diseased proximal ICA and transposition of the distal ICA to the disease-free external carotid artery. The patient provided written consent to present the history, data, and images in this manuscript. PMID- 29349413 TI - Safety and efficacy of a modified HeRO dialysis device in achieving early graft cannulation: A single-institution experience. AB - Hemodialysis Reliable Outflow (HeRO) grafts (Merit Medical Systems, Inc, South Jordan, Utah) provide a means for access in catheter-dependent hemodialysis patients but typically require several weeks for tissue incorporation. Modifying the HeRO graft with an ACUSEAL graft (W. L. Gore & Associates, Newark, Del) can allow immediate cannulation, thus reducing catheter dependence time and its associated complications. A retrospective review of patients at our institution from 2013 to 2016 who underwent placement of a modified HeRO dialysis system with ACUSEAL graft was performed. Complications and outcomes were analyzed, with patency rates and hours to successful cannulation being major end points. Modified HeRO grafts were successfully placed in 10 catheter-dependent patients. Postoperative complications included two thromboses and one hematoma. At 6 months of follow-up, mean time to graft cannulation was 33.7 hours, with 100% success; the primary and secondary patency rates were 70% and 90%, respectively. Our modification allows an accelerated use of the HeRO system, reducing catheter dependence time with acceptable postoperative complications and patency rates. PMID- 29349414 TI - Idiopathic radial artery true aneurysm. PMID- 29349415 TI - A track made by organized thrombus after catheter fragment removal mimicking a remnant catheter in the popliteal artery. PMID- 29349416 TI - Acute aortic occlusion secondary to aortic endograft migration and collapse. PMID- 29349417 TI - Emergent endovascular repair of a ruptured giant internal iliac artery aneurysm using an inverted iliac limb endograft. PMID- 29349418 TI - Femoral artery embolism of bullet after thoracic gunshot wound. PMID- 29349419 TI - Covered endovascular repair of the paravisceral aorta. AB - Open aortic repair is considered the "gold standard" treatment for aortic occlusive disease. We present the case of an 83-year-old patient with refractory hypertension caused by paravisceral aortic stenosis including both renal arteries and the superior mesenteric artery. We planned an endovascular approach and treated the patient with parallel stent grafts in the paravisceral aorta. At 1.5 years after the operation, the patient was free of hypertensive episodes. Covered endovascular repair of the paravisceral aorta may be a valuable alternative to open aortic repair in patients unfit for open surgery. More research is needed to evaluate the long-term effects of this technique. PMID- 29349420 TI - Common carotid artery pseudoaneurysm secondary to Mycobacterium tuberculosis treated with resection and reconstruction with saphenous vein graft. AB - Extracranial carotid artery aneurysms secondary to Mycobacterium tuberculosis infection are exceedingly rare. Despite an uncommon location and offending pathogen, the treatment paradigm follows that of all mycotic aneurysms. We report the case of a right common carotid artery pseudoaneurysm caused by a tuberculous infection, successfully treated with antibiotics, resection, and autologous interposition graft. PMID- 29349421 TI - Large-diameter inferior mesenteric artery in a case involving a ruptured common iliac artery aneurysm. PMID- 29349422 TI - Hybrid management of a ruptured right subclavian artery aneurysm dissection. AB - Aberrant right subclavian artery is the most common congenital malformation of the aortic arch (0.4%-2.0%). Aneurysms of aberrant subclavian arteries are extremely rare. This results in little experience with their treatment. We describe a case of a patient who presented to the emergency department with a dissection of an aberrant right subclavian artery that later progressed to rupture. Besides hemodynamic instability, this caused an acute superior vena cava syndrome, making airway control difficult. In the operating room, we obtained proximal control through thoracic endovascular aortic repair; median sternotomy was performed for distal control and evacuation of massive hemomediastinum. PMID- 29349423 TI - Ruptured giant popliteal artery aneurysm. PMID- 29349424 TI - Symptomatic giant carotid artery aneurysm. PMID- 29349425 TI - Assessment of lower extremity ischemia using smartphone thermographic imaging. AB - Conventional diagnostic modalities for assessing arterial circulation or tissue perfusion include blood pressure measurement, ultrasound evaluation, and contrast based angiographic assessment. An infrared thermal camera can detect infrared radiation energy from the human body, which generates a thermographic image to allow tissue perfusion analysis. We describe a smartphone-based miniature thermal imaging system that can be used as an adjunctive imaging modality to assess tissue perfusion. This smartphone-based camera device is noninvasive, simple to use, and cost-effective in assessing patients with lower extremity tissue perfusion. Assessment of patients with lower extremity arterial ischemia can be performed by a variety of diagnostic modalities, including ankle-brachial index, absolute systolic ankle or toe pressure, transcutaneous oximetry, arterial Doppler waveform, arterial duplex ultrasound, computed tomography scan, arterial angiography, and thermal imaging. We herein describe a noninvasive imaging modality using smartphone-based infrared thermography. PMID- 29349427 TI - An unusual cause of cruralgia. PMID- 29349426 TI - Development of a pulsatile, tissue-based, versatile vascular surgery simulation laboratory for resident training. AB - Simulation in surgery is becoming an important component of surgical education. Training on bench top models has been demonstrated to improve technical skills. The objective of our project was to create a vascular surgery simulation model. The simulation model consists of a platform, artificial blood reservoir, artificial blood, inflow and outflow limbs, electric motor, battery, pulse generator, and cryopreserved vessel. Three different vascular surgery simulation stations were created: carotid endarterectomy with shunting and patch angioplasty, arterial bypass, and arteriovenous graft formation. A scientific study involving surgical residents will need to be undertaken to determine whether this simulator has intermodal transferability. PMID- 29349428 TI - Hybrid repair of a large pseudoaneurysm of the proximal right subclavian artery in a Marfan patient. AB - A pseudoaneurysm of the proximal right subclavian artery is rare and most commonly caused by penetrating or blunt trauma. We report a case of a Marfan patient with a large iatrogenic pseudoaneurysm of the right subclavian artery, induced by a puncture lesion during central venous catheter placement for an elective endovascular thoracic aortic procedure. The patient was successfully treated with a hybrid approach, which consisted of endovascular coiling and balloon occlusion of the adjacent vessels, followed by open surgical exploration and uneventful closure of the puncture hole with the use of bovine pericardium reinforced sutures. PMID- 29349429 TI - Repair of a mycotic abdominal aortic aneurysm in a neonate using an everted jugular vein patch. AB - A 43-day-old boy presented with bacteremia after umbilical artery catheterization. Duplex ultrasound examination revealed a 1.1- * 1.6-cm mycotic infrarenal aortic aneurysm and an incidental asymptomatic occluded right common iliac artery. Resection and repair were completed by creating an everted, double layered internal jugular vein patch. Screening ultrasound examination 10 months postoperatively demonstrated successful repair. PMID- 29349430 TI - Surgical repair of a celiac artery aneurysm using a sutureless proximal anastomosis device. AB - Some celiac artery aneurysms are not suitable for endovascular therapy. We describe the case of a 63-year-old man with a celiac trunk aneurysm extending to the hepatosplenic bifurcation. The aneurysm was resected and oversewn at the origin from the abdominal aorta. A saphenous vein bypass from the supraceliac aorta to the celiac artery bifurcation was performed using a sutureless anastomotic device (PAS-Port system; Cardica, Redwood City, Calif) to create the proximal anastomosis, eliminating the need for aortic clamping. This system is thought to make direct proximal aortic anastomosis safe and easy in patients requiring surgical reconstruction of celiac artery aneurysms. PMID- 29349431 TI - Complete robotic repair of a renal artery aneurysm. AB - Although the majority of renal artery aneurysms require only observation, those that require treatment have been addressed primarily surgically or endovascularly. We report a case of surgical resection of a large, symptomatic renal artery aneurysm from an entirely robotic approach. PMID- 29349432 TI - Aortic arch banding procedure for proximal type I endoleak after thoracic endovascular aneurysm repair with the chimney technique. AB - An aortic arch banding procedure was performed on an 82-year-old man for treatment of proximal type I endoleaks 2 days after he had undergone emergency thoracic endovascular aortic repair with the chimney technique for a ruptured aortic arch aneurysm. Contrast-enhanced computed tomography after the second procedure demonstrated significant shrinkage of the aneurysmal sac as well as a complete disappearance of the endoleaks. The basic concept of this technique is to treat the type IA endoleak, including possible gutter endoleaks, by creating a new proximal seal zone distal to the chimney graft using a banding technique. PMID- 29349433 TI - Popliteal artery entrapment syndrome presenting as acute limb ischemia in pregnancy. AB - Popliteal artery entrapment syndrome typically causes calf claudication in young active adults. Acute limb ischemia from popliteal artery thrombosis, embolization, or aneurysmal degeneration is less common. Chronic compression, histologic changes, and predisposing factors, such as vigorous exercise or hypercoagulability, play a role in these cases. We present the case of a 32-year old pregnant woman with acute limb ischemia found to have popliteal artery thrombosis as a result of popliteal artery entrapment syndrome. Although many imaging modalities are available, pregnancy creates a unique situation in which consideration of irradiation and exposure to contrast material is important in diagnosis and treatment. PMID- 29349434 TI - A novel application of the culotte stent technique to bail out a jailed common iliac artery. AB - Implanting a self-expandable stent at the ostium of the common iliac artery (CIA) may lead to coverage of the orifice of the contralateral CIA. Here, we describe a novel application of the culotte stent technique using a balloon-expandable stent to bail out an ostial stenotic legion of a jailed CIA due to prior self expandable stent placement. The bilateral CIAs were revascularized by culotte stenting, and patency of the stents was confirmed 3 years after the procedure. The culotte stent technique was successfully applied to an ostial stenotic lesion of a jailed CIA. PMID- 29349435 TI - Emergency endovascular coiling of a ruptured giant splenic artery aneurysm. AB - Splenic artery aneurysms (SAAs) are the third most common abdominal aneurysm. Endovascular treatment of SAAs is preferred, and coiling is the most commonly used technique. Ruptured giant (>5 cm) SAAs are usually treated with open surgery including splenectomy. We present a rare case of a ruptured 15-cm giant SAA in an 84-year-old woman treated successfully with emergency endovascular coiling. To our knowledge, this is one of the few reports of emergency endovascular treatment for ruptured giant SAA. PMID- 29349436 TI - Superficial temporal artery aneurysm associated with immunoglobulin G4-related disease. AB - A 68-year-old man was admitted because of a pulsatile mass and pain in the left temporal region, and computed tomography demonstrated the superficial temporal artery aneurysm. He underwent aneurysmectomy, and pathologic investigation revealed marked thickness of the adventitia with substantial plasmacyte infiltration. On immunoglobulin G4 (IgG4) immunohistochemistry, IgG4-positive lymphocytes were scattered in the adventitia, and biochemical tests revealed elevation of IgG4 (200 mg/dL). The case satisfied the criteria for both giant cell arteritis and IgG4-related disease (IgG4-RD). This case report suggested that IgG4-RD can occur in the superficial temporal artery and that IgG4-RD may partially overlap with a subtype of giant cell arteritis. PMID- 29349437 TI - Staged endovascular repair of an abdominal aortic aneurysm adjacent to a chronic high-flow iliocaval traumatic arteriovenous fistula. AB - Large-vessel chronic traumatic arteriovenous fistulas are a rare complication after trauma. Delayed presentation can consist of one or more features of high output cardiac failure, pulsatile abdominal mass, bruit, limb ischemia, and venous congestion. We describe a patient with a complex iliocaval fistula secondary to a remote gunshot wound associated with a large 8.5-cm aortic aneurysm. Informed consent of the patient was obtained for publication of the case. PMID- 29349438 TI - Idiopathic internal mammary artery aneurysm in the setting of aberrant right subclavian artery. AB - Aneurysms of the internal mammary artery are extremely rare. Immediate treatment is necessary because of the high risk of rupture that can be life-threatening. Here we describe a case of idiopathic internal mammary artery aneurysm in a 54 year-old woman in the setting of aberrant right subclavian artery. The aneurysm was successfully treated with coil embolization without complications. PMID- 29349439 TI - Protein C deficiency resulting from two mutations in PROC presenting with recurrent venous thromboembolism. AB - Hereditary protein C (PC) deficiency is an autosomal dominant disorder associated with a high risk of venous thromboembolism (VTE). Here we report a case of inherited PC deficiency associated with recurrent deep venous thrombosis. Two mutations were revealed in PROC (c.1152C>G, p.N384K and c.1207G>T, p.G403W) by genetic testing. Results from this case suggest that the inherited PC deficiency due to the PROC mutations may cause recurrent VTE. Long-term anticoagulant therapy may be appropriate for these patients with recurrent VTE and hereditary PC deficiency. PMID- 29349440 TI - Preservation of internal iliac arteries during endovascular aneurysm repair using "eye of the tiger" technique. AB - Parallel endografts were introduced as a way to expand endovascular repair of aneurysms involving branch vessels. However, endoleaks as a result of the gutters between the parallel endografts made this technique less favorable. The "eye of the tiger" technique was introduced to reduce the gutters between the parallel endografts proximally in the aorta. We report endovascular repair of infrarenal abdominal aortic aneurysm using eye of the tiger technique distally to preserve the internal iliac arteries. PMID- 29349441 TI - Association between sn-2 fatty acid profiles of breast milk and development of the infant intestinal microbiome. AB - Increasing evidence shows that host diet and gut microbes are related. Previous studies have shown the effects of specific dietary fatty acids (FAs) on intestinal microbiota, but little is known about the effect of the stereospecifically numbered sn-2 position in triglycerides (TG) of human milk on the gut microbiome of infants. This study aimed at examining possible effects of sn-2 FAs of human milk on the gut microbial development of breastfeeding babies. Sn-2 FAs and intestinal microbiota were assessed by GC-MS and high-throughput 16S rRNA sequencing, respectively. The results showed that breast milk from mothers in China contained ten major sn-2 FAs dominated by palmitic acid (C16:0, 54.42%), oleic acid (C18:1 n-9, 14.95%), linoleic acid (LA, C18:2 n-6, 12.81%), myristic acid (C14:0, 4.50%) and C12:0 (3.17%). Total long chain unsaturated fatty acids (LCUFA) decreased from colostrum to mature milk, while total saturated fatty acids (SFA) showed no significant difference during lactation. A significant association between sn-2 FAs in milk and infant gut microbiota was found between decanoic acid (C10:0), myristic acid (C14:0), stearic acid (C18:0), C16:0, arachidonic acid (AA, C20:4 n-6), docosahexaenoic acid (DHA, C22:6 n-3) with Bacteroides, Enterobacteriaceae, Veillonella, Streptococcus, and Clostridium. These microbes were involved in short-chain fatty acid (SCFA) production and other functions, and significantly increased at 13-15 d after breastfeeding was initiated. C16:0 and DHA were relevant to most of the microbes. This study demonstrated the relatively steady profiles of sn-2 FAs in breast milk and gut microbiota of infants, together with their correlation during the breastfeeding period. The above results provided important information for designing the configuration of FAs in next-generation formulas for Chinese infants. PMID- 29349442 TI - Impact of Nb vacancies and p-type doping of the NbCoSn-NbCoSb half-Heusler thermoelectrics. AB - The half-Heuslers NbCoSn and NbCoSb have promising thermoelectric properties. Here, an investigation of the NbCo1+ySn1-zSbz (y = 0, 0.05; 0 <= z <= 1) solid solution is presented. In addition, the p-type doping of NbCoSn using Ti and Zr substitution is investigated. Rietveld analysis reveals the gradual creation of Nb vacancies to compensate for the n-type doping caused by the substitution of Sb in NbCoSn. This leads to a similar valence electron count (~18.25) for the NbCo1+ySn1-zSbz samples (z > 0). Mass fluctuation disorder due to the Nb vacancies strongly decreases the lattice thermal conductivity from 10 W m-1 K-1 (z = 0) to 4.5 W m-1 K-1 (z = 0.5, 1). This is accompanied by a transition to degenerate semiconducting behaviour leading to large power factors, S2/rho = 2.5 3 mW m-1 K-2 and figures of merit, ZT = 0.25-0.33 at 773 K. Ti and Zr can be used to achieve positive Seebeck values, e.g. S = +150 MUV K-1 for 20% Zr at 773 K. However, the electrical resistivity, rho323K = 27-35 mOmega cm, remains too large for these materials to be considered useful p-type materials. PMID- 29349443 TI - Large valley polarization in monolayer MoTe2 on a magnetic substrate. AB - On the basis of valley degree of freedom, there would be immense potential application in valleytronics. Introducing magnetism into triangular or hexagonal lattices is a promising route to realize valley polarization, which is indispensable for applying the valley degree of freedom. In this study, we explored valley polarization by depositing a heterostructure of a MoTe2 monolayer on the (0 0 1) surface of an antiferromagnetic RbMnCl3 substrate. First principles-calculations showed that due to proximity-induced Zeeman effects, the MoTe2 monolayer was drastically magnetized by the topmost Mn layer in the substrate and a very large valley splitting (about 109 meV) was achieved. Using an effective Hamiltonian model, the effect of the competition of the spin-orbit coupling (SOC) and exchange field in the system on the valley polarization was also investigated. The magnitude of the valley splitting was found to be limited by the smaller SOC value and the induced exchange field, providing information on the enhancement of the valley polarization. A device rudiment with an anomalous valley Hall effect is proposed. PMID- 29349444 TI - Non-invasive force measurement reveals the number of active kinesins on a synaptic vesicle precursor in axonal transport regulated by ARL-8. AB - Kinesin superfamily protein UNC-104, a member of the kinesin-3 family, transports synaptic vesicle precursors (SVPs). In this study, the number of active UNC-104 molecules hauling a single SVP in axons in the worm Caenorhabditis elegans was counted by applying a newly developed non-invasive force measurement technique. The distribution of the force acting on a SVP transported by UNC-104 was spread out over several clusters, implying the presence of several force-producing units (FPUs). We then compared the number of FPUs in the wild-type worms with that in arl-8 gene-deletion mutant worms. ARL-8 is a SVP-bound arf-like small guanosine triphosphatase, and is known to promote unlocking of the autoinhibition of the motor, which is critical for avoiding unnecessary consumption of adenosine triphosphate when the motor does not bind to a SVP. There were fewer FPUs in the arl-8 mutant worms. This finding indicates that a lack of ARL-8 decreased the number of active UNC-104 motors, which then led to a decrease in the number of motors responsible for SVP transport. PMID- 29349445 TI - Discovery of novel diarylpyrimidines as potent HIV-1 NNRTIs by investigating the chemical space of a less explored "hydrophobic channel". AB - A new series of diarylpyrimidines (DAPYs) were designed, synthesized and evaluated as novel HIV-1 NNRTIs to further explore the chemical space surrounding the "hydrophobic channel" of the NNRTI binding pocket (NNIBP), guided by the comprehensive analysis of X-ray structural biology data of HIV-1 RT/NNRTI complexes and molecular modeling. Encouragingly, most of the synthesized DAPYs were found to be active against the HIV-1 wild-type (WT) strain with EC50 values ranging from 3 nM to 63 nM, and displayed significantly reduced cytotoxicity compared with etravirine (ETV) and rilpivirine (RPV). Among them, two most promising compounds Z10 (EC50 = 3 nM) and Z13 (EC50 = 3 nM) showed equivalent potency against the HIV-1 WT strain to the reference drugs efavirenz (EFV, EC50 = 3 nM) and ETV (EC50 = 3 nM). Notably, Z13 also showed the most potent activity against HIV-1 mutant strains including K103N (EC50 = 10 nM), E138K (EC50 = 22 nM) and RES056 (EC50 = 0.935 MUM). Against mutant strains Y181C, Y188L and F227L + V106A, Z17 showed double-digit nanomolar inhibitory activity with EC50 values 27 nM, 98 nM and 30 nM, respectively. The structure-activity relationships (SARs) and molecular docking studies provided important clues for further molecular elaboration. Collectively, this study provides useful information to guide lead optimization and drug discovery via the exploration of this seldom investigated region. PMID- 29349446 TI - Ameliorative role of camel whey protein and rosuvastatin on induced dyslipidemia in mice. AB - The incidence of obesity is rapidly increasing throughout the world. Dyslipidemia is a major risk factor for a number of chronic diseases, including diabetes and cardiovascular diseases. This work presents a novel approach to study the activity of camel whey protein (WP) with antioxidant and anti-inflammatory properties as a cheap dietary protein substance extracted from camel milk to produce satiety and help in building muscles. Mice model suffering from dyslipidemia as a result of feeding on high fat-cholesterol diet for 8 weeks were administrated with either camel WP and/or rosuvastatin for 4 weeks. Dyslipidemia revealed significant increase in anthropometrical measurements, levels of glucose, insulin, cholesterol, triglycerides, low-density lipoprotein, total leucocyte count, inflammatory cytokines and reactive oxygen species, accompanied by a significant elevation in activating transcription factor-3 and inducible nitric oxide synthase expressions. These alterations were correlated with a profound reduction in high-density lipoprotein, peroxisome proliferator-activated receptor alpha and adiponectin along with a decrease in liver and muscle mitochondrial proteins. Rosuvastatin treatment to mice suffering from dyslipidemia in combination with camel WP for 4 weeks ameliorated these parameters. Notably, animals treated with both camel WP and rosuvastatin exhibited a remarkable decrease in the incidence of dyslipidemia. In addition, camel WP succeeded to overcome the therapeutic drawback posed from rosuvastatin therapy alone with minimal side effects. PMID- 29349447 TI - Theoretical study on the charge transport in single crystals of TCNQ, F2-TCNQ and F4-TCNQ. AB - 2,5-Difluoro-7,7,8,8-tetracyanoquinodimethane (F2-TCNQ) was recently reported to display excellent electron transport properties in single crystal field-effect transistors (FETs). Its carrier mobility can reach 25 cm2 V-1 s-1 in devices. However, its counterparts TCNQ and F4-TCNQ (tetrafluoro-7,7,8,8 tetracyanoquinodimethane) do not exhibit the same highly efficient behavior. To better understand this significant difference in charge carrier mobility, a multiscale approach combining semiclassical Marcus hopping theory, a quantum nuclear enabled hopping model and molecular dynamics simulations was performed to assess the electron mobilities of the Fn-TCNQ (n = 0, 2, 4) systems in this work. The results indicated that the outstanding electron transport behavior of F2-TCNQ arises from its effective 3D charge carrier percolation network due to its special packing motif and the nuclear tunneling effect. Moreover, the poor transport properties of TCNQ and F4-TCNQ stem from their invalid packing and strong thermal disorder. It was found that Marcus theory underestimated the mobilities for all the systems, while the quantum model with the nuclear tunneling effect provided reasonable results compared to experiments. Moreover, the band-like transport behavior of F2-TCNQ was well described by the quantum nuclear enabled hopping model. In addition, quantum theory of atoms in molecules (QTAIM) analysis and symmetry-adapted perturbation theory (SAPT) were used to characterize the intermolecular interactions in TCNQ, F2-TCNQ and F4-TCNQ crystals. A primary understanding of various noncovalent interaction responses for crystal formation is crucial to understand the structure-property relationships in organic molecular materials. PMID- 29349448 TI - A study on platinum(iv) species containing an estrogen receptor modulator to reverse tamoxifen resistance of breast cancer. AB - Several dual-action Tam-Pt(iv) complexes derived from tamoxifen (Tam) and platinum(ii) drugs were designed and synthesized for targeting estrogen receptors (ERs) and DNA. These novel compounds not only exhibited potent cytotoxicity against breast cancer cells, but also reversed the tamoxifen resistance of TamR MCF-7 cancer cells. Computational docking assays together with cellular uptake data demonstrated that the ER ligand portion of these conjugates plays a targeting role in ER-positive tumor cells and promotes the uptake of platinum via an estrogen receptor-mediated pathway. A study on the preliminary mechanism of the typical conjugate, complex 1, revealed that the Tam-Pt(iv) complex induced apoptosis via the mitochondrial-dependent apoptosis pathway mediated through the activation of caspase 3 and PARP proteins. These results suggested that the conjugation of estrogen receptor modulators with the platinum moiety could facilitate a selective enrichment of platinum in estrogen-positive tumors and possibly broaden the scope of ER ligand clinical use to resistant breast tumors. PMID- 29349449 TI - Local and global aromaticity in a molecular carbon nanobelt: insights from magnetic response properties in neutral and charged species. AB - The formation of carbon nanobelt made exclusively from fused benzene rings has recently been achieved. Our results reveal an interesting shift from a local aromatic character constrained in each of the six aromatic Clar sextets (6pi electron circuit) to a global aromatic character in charged species (+2 and -2) involving the overall pi-circuit from the molecular nanobelt. This demonstrates the suppression of the local aromatic character in favor of a global aromaticity by selecting the oxidation state of the carbon nanobelt, giving rise to a shielding cone extended within the structure. PMID- 29349450 TI - Complex patchy colloids shaped from deformable seed particles through capillary interactions. AB - We investigate the mechanisms underlying the reconfiguration of random aggregates of spheres through capillary interactions, the so-called "colloidal recycling" method, to fabricate a wide variety of patchy particles. We explore the influence of capillary forces on clusters of deformable seed particles by systematically varying the crosslink density of the spherical seeds. Spheres with a poorly crosslinked polymer network strongly deform due to capillary forces and merge into large spheres. With increasing crosslink density and therefore rigidity, the shape of the spheres is increasingly preserved during reconfiguration, yielding patchy particles of well-defined shape for up to five spheres. In particular, we find that the aspect ratio between the length and width of dumbbells, L/W, increases with the crosslink density (cd) as L/W = B - A.exp(-cd/C). For clusters consisting of more than five spheres, the particle deformability furthermore determines the patch arrangement of the resulting particles. The reconfiguration pathway of clusters of six densely or poorly crosslinked seeds leads to octahedral and polytetrahedral shaped patchy particles, respectively. For seven particles several geometries were obtained with a preference for pentagonal dipyramids by the rigid spheres, while the soft spheres do rarely arrive in these structures. Even larger clusters of over 15 particles form non-uniform often aspherical shapes. We discuss that the reconfiguration pathway is largely influenced by confinement and geometric constraints. The key factor which dominates during reconfiguration depends on the deformability of the spherical seed particles. PMID- 29349451 TI - On the turn-inducing properties of asparagine: the structuring role of the amide side chain, from isolated model peptides to crystallized proteins. AB - Asparagine (Asn) is a powerful turn-inducer residue, with a large propensity to occupy the second position in the central region of beta-turns of proteins. The present work aims at investigating the role of a local anchoring between the Asn side chain and the main chain in this remarkable property. For this purpose, the H-bonding patterns of an asparagine residue in an isolated protein chain fragment forming a gamma- or a beta-turn have been determined using IR/UV double resonance gas phase spectroscopy on laser-desorbed, jet-cooled short models in conjunction with relevant quantum chemistry calculations. These gas phase data provide evidence for an original double anchoring linking the Asn primary amide side chain (SC), which adopts a gauche+ rotameric form, to its main chain (MC) local environment. From both IR spectroscopic evidence (H-bond induced red shifts) and quantum chemistry, Asn SC is found to behave as a stronger H-bond acceptor than donor, resulting in stronger MC->SC H-bonds than SC->MC ones. These gas phase structural data, relevant to a hydrophobic environment, have been used as a reference to assess the anchoring taking place in high resolution crystallized proteins of the Protein Data Bank. This approach reveals that, when the SC adopts a gauche+ orientation, the stronger MC->SC bonds are preserved in many cases whereas the SC->MC bonds are always disrupted, in qualitative agreement with the gas phase ranking of these interactions. Most interestingly, when Asn occupies the second position of central part of a beta-turn (i.e., the very turn-inducer position), the MC->SC H-bonds are also disrupted and replaced by a water-mediated SC to MC anchoring. Owing to the specific features of the hydrated Asn side chain, we propose that it could be a turn precursor structure, able to facilitate turn formation in the early events of the folding process. PMID- 29349452 TI - Barriometry - an enhanced database of accurate barrier heights for gas-phase reactions. AB - The kinetics of many reactions are critically dependent upon the barrier heights for which accurate determination can be difficult. From the perspective of attaining such quantities using computational quantum chemistry, it is important to appropriately validate routine and efficient methodologies such as density functional theory (DFT) procedures. In the present study, we embark on the journey of establishing diverse databases using a consistent high-level quantum chemistry procedure, against which new and existing methodologies can be assessed. Thus, we have used the composite protocol W3X-L to provide more than 100 refined reference values for existing databases [e.g., Y. Zhao and D. G. Truhlar, J. Phys. Chem. A, 2005, 109, 5656] and additionally establish benchmark data that are of interest to atmospheric and combustion chemists. While our endeavor has just begun, assessment of various DFT methods with our existing results lends support to the use of MN15 as an adequate method for general kinetics applications. We also recommend the use of less-costly W2X and WG composite protocols for obtaining adequately accurate reference thermochemical values for larger molecular systems. PMID- 29349453 TI - A QM/MM and QM/QM/MM study of Kerr, Cotton-Mouton and Jones linear birefringences in liquid acetonitrile. AB - QM/MM and QM/QM/MM protocols are applied to the ab initio study of the three linear birefringences Kerr, Cotton-Mouton, and Jones, as shown by acetonitrile in the gas and pure liquid phases. The relevant first-order properties as well as linear, quadratic, and cubic frequency-dependent response functions were computed using time-dependent Kohn-Sham density-functional theory with use of the standard CAM-B3LYP functional. In the liquid phase, a series of room temperature (293.15 K) molecular dynamics snapshots were selected, for which averaged values of the observables were obtained at an optical wavelength of 632.8 nm. The birefringences were computed for electric and magnetic induction fields corresponding to the laboratory setup previously employed by T. Roth and G. L. J. A. Rikken in Phys. Rev. Lett., 2000, 85, 4478. Under these conditions, acetonitrile is shown to exhibit a weak Jones response-in fact roughly 6.5 times smaller than the limit of detection of the apparatus employed in the measurements mentioned above. A comparison is made with the corresponding gas-phase results and an assessment is made of the index of measurability, estimating the degree of overlap of the three birefringences in actual measurements. For acetonitrile, it is shown that this index is a factor of 3.6 and 6.7 larger than that of methylcyclopentadienyl-Mn-tricarbonyl and cyclohexadienyl-Fe-tricarbonyl, respectively-two compounds reported in Phys. Rev. Lett., 2000, 85, 4478 to exhibit a strong Jones signal. PMID- 29349454 TI - Adsorption and binding dynamics of graphene-supported phospholipid membranes using the QCM-D technique. AB - We report on the adsorption dynamics of phospholipid membranes on graphene-coated substrates using the quartz crystal microbalance with dissipation monitoring (QCM D) technique. We compare the lipid vesicle interaction and membrane formation on gold and silicon dioxide QCM crystal surfaces with their graphene oxide (GO) and reduced (r)GO coated counterparts, and report on the different lipid structures obtained. We establish graphene derivative coatings as support surfaces with tuneable hydrophobicity for the formation of controllable lipid structures. One structure of interest formed is lipid monolayer membranes which were formed on rGO, which are otherwise challenging to produce. We also demonstrate and monitor biotin-avidin binding on such a membrane, which will then serve as a platform for a wide range of biosensing applications. The QCM-D technique could be extended to both fundamental studies and applications of other covalent and non-covalent interactions in 2-dimensional materials. PMID- 29349455 TI - On the H2 interactions with transition metal adatoms supported on graphene: a systematic density functional study. AB - The attachment of H2 to the full set of transition metal (TM) adatoms supported on graphene is studied by using density functional theory. Methodology validation calculations on the interactions of H2 with benzene and graphene show that any of the vdW corrections under study, the Grimme D2, D3, D3 with Becke-Jonson damping (D3BJ), and Tkatchenko-Scheffler methods, applied on the PBE functional, are similarly accurate in describing such subtle interactions, with an accuracy of almost 2 kJ mol-1 compared to experiments. The PBE-D3 results show that H2 physisorbs on especially stable d5 or d10 TMs. In other 5d metals, and the rightmost 3d and 4d ones, H2 dissociates, and only for Y, Mn, Fe, and Zr the H2 binds strongly enough for its storage in the so-called Kubas mode, where the H2 bond is sensibly elongated. Other metals (Co, Ni, Ru, Rh and Pd) feature also an elongated Kubas mode, interesting as well for H2 storage. Sc and Ti display a Kubas modes especially suited, given their lightness, for meeting the gravimetric requirements. The H2 interactions with TM adatoms imply a TM -> H2 charge transfer, although the magnetic moment of the system tends to remain intact, except for the early 5d TMs, where the unpaired electron transfer seems to be associated with the H2 bond breakage. PMID- 29349456 TI - Effects of carotenoids on lipid bilayers. AB - Carotenoids have been found to be important in improving the integrity of biomembranes in eukaryotes. However, the molecular details of how carotenoids modulate the physical properties of biomembranes are unknown. To this end, we have conducted a series of molecular dynamics simulations of different biologically-relevant membranes in the presence of carotenoids. The carotenoid effect on the membrane was found to be specific to the identity of the carotenoid and the composition of the membrane itself. Therefore, different classes of carotenoids produce a different effect on the membrane, and different membrane phases are affected differently by carotenoids. It is apparent from our data that carotenoids do trigger the bilayer to become thinner. The mechanism by which this occurs depends on two competing factors, the ability of the lipid tails of opposing monolayers to either (1) compress or (2) interdigitate as the bilayer condenses. Indeed, carotenoids directly influence the physical properties via these two mechanisms, thus compacting the bilayer. However, the degree to which these competing mechanisms are utilized depends on the bilayer phase and the carotenoid identity. PMID- 29349457 TI - Effects of tetrahedral DNA nanostructures on autophagy in chondrocytes. AB - Tetrahedral DNA nanostructures (TDNs) have gathered great attention and are being widely used in biomedicine. We demonstrated that autophagy increased after exposure to TDNs (250 nM) along with the up-regulation of several autophagy related genes and proteins. TDNs enhanced cell autophagy through the PI3K/AKT/mTOR signaling pathway. PMID- 29349458 TI - Trends in adsorption of electrocatalytic water splitting intermediates on cubic ABO3 oxides. AB - The reactivity of solid oxide surfaces towards adsorption of oxygen and hydrogen is a key metric for the design of new catalysts for electrochemical water splitting. In this paper, we report on trends in the adsorption energy of different adsorbed intermediates derived from the oxidation and reduction of water for ternary ABO3 oxides in the cubic perovskite structure. Our findings support a previously reported trend that rationalizes the observed lower bound in oxygen evolution (OER) overpotentials from correlations in OH* and OOH* adsorption energies. In addition, we report hydrogen adsorption energies that may be used to estimate hydrogen evolution (HER) overpotentials along with potential metrics for electrochemical metastability in reducing environments. We also report and discuss trends between atom-projected density of states and adsorption energies, which may enable a design criteria from the local electronic structure of the active site. PMID- 29349459 TI - A versatile single molecular precursor for the synthesis of layered oxide cathode materials for Li-ion batteries. AB - A carbonyl-bridged single molecular precursor LiTM(acac)3 [transition metal (TM) = cobalt/manganese/nickel (Co/Mn/Ni), acac = acetylacetone], featuring a one dimensional chain structure, was designed and applied to achieve the layered oxide cathode materials: LiTMO2 (TM = Ni/Mn/Co, NMC). As examples, layered oxides, primary LiCoO2, binary LiNi0.8Co0.2O2 and ternary LiNi0.5Mn0.3Co0.2O2 were successfully prepared to be used as cathode materials. When they are applied to lithium-ion batteries (LIBs), all exhibit good electrochemical performance because of their unique morphology and great uniformity of element distribution. This versatile precursor is predicted to accommodate many other metal cations, such as aluminum (Al3+), iron (Fe2+), and sodium (Na+), because of the flexibility of organic ligand, which not only facilitates the doping-modification of the NMC system, but also enables synthesis of Na-ion layered oxides. This opens a new direction of research for the synthesis of high-performance layered oxide cathode materials for LIBs. PMID- 29349460 TI - A combined theoretical and experimental investigation on the influence of the bromine substitution pattern on the photophysics of conjugated organic chromophores. AB - A large series of structurally related two-photon photosensitizers with heavy atom substitution were synthesized and evaluated through a combined spectroscopic (steady-state and time resolved), photophysical and computational study. Our aim was to identify some relevant parameters related to their excited state dynamics including photo-induced singlet oxygen generation. Although these dynamics result from the interplay of many factors, we show that the triplet excited state generation kinetics can generally be correlated with the calculated values of both the spin-orbit coupling and the energy gap between S1 and T1 states, which themselves mostly depend on the positioning of the heavy atoms along the pi conjugated structure rather than their number. PMID- 29349461 TI - Oxygen vacancy rich Cu2O based composite material with nitrogen doped carbon as matrix for photocatalytic H2 production and organic pollutant removal. AB - A nitrogen doped carbon matrix supported Cu2O composite material (Cu/Cu2O@NC) was fabricated successfully with a coordination polymer as precursor through calcination. In this composite material, Cu2O particles with a size of about 6-10 nm were dispersed evenly in the nitrogen doped carbon matrix. After calcination, some coordinated nitrogen atoms were doped in the lattice of Cu2O and replace oxygen atoms, thus generating a large number of oxygen vacancies. In Cu/Cu2O@NC, the existence of oxygen vacancies has been confirmed by electron spin resonance (ESR) and X-ray photoelectron spectroscopy (XPS). Under visible light irradiation, Cu/Cu2O@NC exhibits excellent H2 production with the rate of 379.6 MUmol h-1 g-1. Its photocatalytic activity affects organic dyes, such as Rhodamine B (RhB) and methyl orange (MO). In addition to photocatalysis, Cu/Cu2O@NC also exhibits striking catalytic activity in reductive conversion of 4 nitrophenol to 4-aminophenol with in presence of sodium borohydride (NaBH4). The conversion efficiency reaches almost 100% in 250 s with the quantity of Cu/Cu2O@NC as low as 5 mg. The outstanding H2 production and organic pollutants removal are attributed to the oxygen vacancy. We expect that Cu/Cu2O@NC will find its way as a new resource for hydrogen energy as well as a promising material in water purification. PMID- 29349462 TI - Self-assembly of bis-salphen compounds: from semiflexible chains to webs of nanorings. AB - The recently-observed self-assembly of certain salphen-based compounds into neuron-like networks of microrings interconnected with nano-thin strings may suggest a new highly-potent tool for nanoscale patterning. However, the mechanism behind such phenomena needs to be clarified before they can be applied in materials design. Here we show that, in contrast with what was initially presumed, the emergence of a "rings-and-rods" pattern is unlikely to be explained by merging, collapse and piercing of vesicles as in previously reported cases of nanorings self-assembly via non-bonding interactions. We propose an alternative explanation: the compounds under study form a 1D coordination polymer, the fibres of which are elastic enough to fold into toroidal globules upon solvent evaporation, while being able to link separate chains into extended networks. This becomes possible because the structure of the compound's scaffold is found to adopt a very different conformation from that inferred in the original work. Based on ab initio and molecular dynamics calculations we propose a step-by-step description of self-assembly process of a supramolecular structure which explains all the observed phenomena in a simple and clear way. The individual roles of the compound' s scaffold structure, coordination centres, functional groups and solvent effects are also explained, opening a route to control the morphology of self-assembled networks and to synthesize new compounds exhibiting similar behaviour. PMID- 29349463 TI - Stability and digestibility of one- or bi-layered medium-chain triglyceride emulsions with gum Arabic and whey protein isolates by pancreatic lipase in vitro. AB - Interfacial engineering approaches have been used to design functional foods so as to control lipase-induced digestion of emulsified lipids and release of bioactive lipophilic components in the gastrointestinal tract. In this study, emulsion droplets with the interface stabilized with gum Arabic (GA) and whey protein isolate (WPI) were prepared by mixing or sequential adsorption. WPI/GA intramolecular soluble complexes (ISCs) have superior emulsifying properties in stabilizing oil-in-water emulsions. The impact of the interfaces for WPI/GA ISC layered (one-layered) and double-layered emulsions formed by sequential deposition of WPI or GA on the lipolysis of emulsions was investigated using an in vitro simulated gastrointestinal model. Transglutaminase and dithiothreitol were introduced to crosslink the interfacial proteins and improve the interfacial stability. The ISC-layered emulsion was less stable to aggregation than the double-layered ones in simulated gastric fluid due to dissociation of ISCs caused by the electrostatic screening of ions and proteolysis of interfacial proteins driven by pepsin. The ISC-layered emulsion conferred a significant slower rate and extent of lipid digestion compared to the double-layered emulsions post gastric proteolysis (P < 0.05). It is presumed for the ISC-layered emulsion that the destabilization to aggregation and coalescence within the simulated gastrointestinal fluids and the steric hindrance of the robust and thick interfacial layer might contribute to delaying free fatty acids release. It suggests that both the initial interfacial properties and the stability of the emulsified lipid droplets within the simulated gastrointestinal fluids play an important role in determining the rate and extent of lipid digestion. It is predicted that direct destabilization of emulsified lipids using interfacial engineering approaches has the potential of modifying lipid digestibility or bioactive release at specific sites within the gastrointestinal tract. PMID- 29349464 TI - Boundary-induced nucleation control: a theoretical perspective. AB - The pre-patterning of a substrate to create energetically more attractive or repulsive regions allows one to generate a variety of structures in physical vapor deposition experiments. A particularly interesting structure is generated if the energetically attractive region forms a rectangular grid. For specific combinations of the particle flux, the substrate temperature and the lattice size it is possible to generate exactly one cluster per cell, giving rise to nucleation control. Here, we show that the experimental observations of nucleation control can be very well understood from a theoretical perspective. For this purpose we perform, on the one hand, kinetic Monte Carlo simulations and, on the other hand, use analytical scaling arguments to rationalize the observed behavior. For several observables, characterizing nucleation control, very good agreement is found between experiment and theory. This underlines the generality of the presented mechanism to control the deposition of materials by manipulation of the direct environment. PMID- 29349465 TI - Exploring candidate biomarkers for lung and prostate cancers using gene expression and flux variability analysis. AB - Genome-scale metabolic models have provided valuable resources for exploring changes in metabolism under normal and cancer conditions. However, metabolism itself is strongly linked to gene expression, so integration of gene expression data into metabolic models might improve the detection of genes involved in the control of tumor progression. Herein, we considered gene expression data as extra constraints to enhance the predictive powers of metabolic models. We reconstructed genome-scale metabolic models for lung and prostate, under normal and cancer conditions to detect the major genes associated with critical subsystems during tumor development. Furthermore, we utilized gene expression data in combination with an information theory-based approach to reconstruct co expression networks of the human lung and prostate in both cohorts. Our results revealed 19 genes as candidate biomarkers for lung and prostate cancer cells. This study also revealed that the development of a complementary approach (integration of gene expression and metabolic profiles) could lead to proposing novel biomarkers and suggesting renovated cancer treatment strategies which have not been possible to detect using either of the methods alone. PMID- 29349466 TI - Dynamics of networks in a viscoelastic and active environment. AB - We investigate the dynamics of fractals and other networks in a viscoelastic and active environment. The viscoelastic dynamics is modeled based on the generalized Langevin equation, where the activity is introduced to it by means of the exponentially correlated noise. The intramolecular interactions are taken into account by the bead-spring picture. The microscopic connectivity (studied in the form of Vicsek fractals, of dual Sierpinski gaskets, of NTD trees, and of a family of deterministic small-world networks) reveals itself in the multiscale monomeric dynamics, which shows vastly different behaviors in the active and passive baths. In particular, the dynamics under active forces leads to a swelling that is characterized through power laws which are not present in the passive case. In all cases, the dynamics reflects the broad scaling behavior of the density of states and not necessarily the maximal relaxation time of the structures in a passive bath, as it is exemplified on the NTD trees. PMID- 29349467 TI - Lysine-derived, pH-sensitive and biodegradable poly(beta-aminoester urethane) networks and their local drug delivery behaviour. AB - In this study, a series of covalently crosslinked, l-lysine based poly(beta aminoester urethane) (LPBAEU) networks with good biodegradability and pH sensitivity was reported. The effect of hydrophilic/hydrophobic characteristics and diacrylate/amine molar ratio on the structure, swelling and degradation behaviour of the networks was investigated. The water transport mechanism and dynamic swelling behavior of the LPBAEU networks were strongly affected by medium pH, and swelling amounts up to 252.2% and 148.7% were observed at pH 5.6 and pH 7.4, respectively. It was found that water diffusion within the networks followed a non-Fickian mechanism. The LPBAEU network with the highest diacrylate/amine molar ratio exhibited the highest tensile strength and Young's modulus. In vitro mass losses of networks showed that the degradation rate of LPBAEU networks can be adjusted from 4 to 14 days. LPBAEU networks also supported loading of doxycycline hyclate (DH) and in vitro release studies demonstrated that release of DH from the networks was substantially hindered in the neutral pH environment, with 20.9-56.2% DH release, whereas DH release was accelerated under mild acidic conditions, with a release percentage of 36.6-99.6%. The release data were fitted to different mathematical models and the obtained results confirmed that these networks released DH in a non-Fickian mechanism. The results of this research support the idea that pH-responsive LPBAEU networks may find potential applications in local drug delivery. PMID- 29349468 TI - Absolute and relative-rate measurement of the rate coefficient for reaction of perfluoro ethyl vinyl ether (C2F5OCF[double bond, length as m-dash]CF2) with OH. AB - The rate coefficient (k1) for the reaction of OH radicals with perfluoro ethyl vinyl ether (PEVE, C2F5OCF[double bond, length as m-dash]CF2) has been measured as a function of temperature (T = 207-300 K) using the technique of pulsed laser photolysis with detection of OH by laser-induced fluorescence (PLP-LIF) at pressures of 50 or 100 Torr N2 bath gas. In addition, the rate coefficient was measured at 298 K and in one atmosphere of air by the relative-rate technique with loss of PEVE and reference reactant monitored in situ by IR absorption spectroscopy. The rate coefficient has a negative temperature dependence which can be parameterized as: k1(T) = 6.0 * 10-13 exp[(480 +/- 38/T)] cm3 molecule-1 s 1 and a room temperature value of k1 (298 K) = (3.0 +/- 0.3) * 10-12 cm3 molecule 1 s-1. Highly accurate rate coefficients from the PLP-LIF experiments were achieved by optical on-line measurements of PEVE and by performing the measurements at two different apparatuses. The large rate coefficient and the temperature dependence indicate that the reaction proceeds via OH addition to the C[double bond, length as m-dash]C double bond, the high pressure limit already being reached at 50 Torr N2. Based on the rate coefficient and average OH levels, the atmospheric lifetime of PEVE was estimated to be a few days. PMID- 29349469 TI - Dopant-dependent crystallization and photothermal effect of Sb-doped SnO2 nanoparticles as stable theranostic nanoagents for tumor ablation. AB - Ideal theranostic nanoagents should be "all-in-one" type nanocrystals that have a single-semiconductor component and all-required properties (such as imaging and photothermal effects), but most semiconductor nanocrystals do not have these required properties. With SnO2 as a model of a typical wide-band semiconductor, we report the tuning from UV-responsive SnO2 to blue SnO2 nanocrystals with imaging ability and a Sb-doping-dependent photothermal effect. Sb-Doped SnO2 nanocrystals were prepared by heating SbCl3 and SnCl4 in benzyl alcohol solution through a facile solvothermal route. When the SbCl3/SnCl4 molar ratio increases from 0 to 0.2/1, the obtained samples exhibit an increased photothermal effect under the irradiation of a 1064 nm laser, accompanied by gradually decreased size and crystallinity. With a further increase of the molar ratio from 0.3/1.0 to 1.0/1.0, the resulting samples demonstrate the tetragonal SnO2 phase with amorphous-like compounds and they show no obvious enhancement of a photothermal effect. After a surface modification with biological molecules, the optimized Sb0.2-SnO2 nanocrystals demonstrated good stability and a high photothermal conversion efficiency of 48.3% as well as low cytotoxicity. When Sb0.2-SnO2 was injected into a tumor of mice, the tumor could be simultaneously detected by X ray computed tomography (CT) and photoacoustic (PA) imaging, and then thermally ablated when exposed to a 1064 nm laser. Therefore, these nanocrystals can be used as "all-in-one" type nanoagents for imaging guided photothermal ablation of tumors under the irradiation of a laser in the second bio-transparent window. PMID- 29349475 TI - Continuous splitting of aqueous droplets at the interface of co-flowing immiscible oil streams in a microchannel. AB - We report the continuous splitting of aqueous droplets at the interface between two co-flowing immiscible oil streams in a microchannel. The aqueous droplets initially present in a primary continuous stream (CP1) migrate into a secondary continuous stream (CP2) when the ratio of the non-inertial lift force to the interfacial tension force exceeds a critical value (K. S. Jayaprakash, U. Banerjee and A. K. Sen, Langmuir, 2016, 32, 2136-2143). Here, experiments were performed to understand the droplet splitting phenomenon and demonstrate the splitting of droplets encapsulating microbeads and cells. The results showed that the droplet splitting phenomenon is governed by the capillary number Ca, which is a function of the average shear stress across the channel, interfacial tension sigma between the CP1 and the droplet phase and the droplet length-scale L. Irrespective of the individual values of these parameters, droplet splitting was observed when the capillary number Ca exceeds a critical value Cacr, which was found to be a function of droplet to CP2 viscosity ratio lambda. The Cacr was found to be minimum for lambda ~ 1 but higher for droplets of lambda ? 1 and lambda ? 1. The sizes of the primary and secondary daughter and migrated droplets (i.e. Lp|sD and Lp|sM) were found to increase linearly with the increase in the size of the primary or secondary parent droplets (Lp|sP). Splitting of parent droplets encapsulating a single microbead or PBMC showed that after splitting, the presence of the microbead or PBMC in the daughter or migrated droplets depends on the ratio of the size of the migrated droplets to that of the parent droplet (i.e. VM/VP). Finally, splitting of parent droplets containing two or more microbeads or cells into droplets containing a single particle or cell was demonstrated. A new paradigm of droplet splitting is reported that could find applications in soft matter and single-cell studies. PMID- 29349476 TI - Monitoring the formation of PtNi nanoalloys supported on hollow graphitic spheres using in situ pair distribution function analysis. AB - This article aims to address the formation and the structural disordering/ordering phenomena of PtNi nanoalloys supported on hollow graphitic spheres (HGSs) using pair distribution function (PDF) analysis under ex situ/in situ data collection conditions. Starting from small nanoparticles (10-15 A in diameter) embedded in HGSs, structural changes were monitored during stepwise heating and cooling of the sample using in situ PDF analysis. In order to evaluate the conventional synthesis route for the production of PtNi nanoalloys supported on HGSs, ex situ PDF experiments were performed before and after heat treatment in a furnace. The studies demonstrate that the local structure of the in situ synthesised PtNi nanoalloy differs from its ex situ synthesised counterpart. A partially ordered PtNi nanoalloy was obtained during the stepwise in situ cooling of the precursor, whereas the conventional ex situ synthesis route did not lead to the formation of an ordered crystal structure. In this study we could show that rapid heating and cooling results in a disordered PtNi alloy whereas slow heating and cooling leads to disorder-order transitions in PtNi. PMID- 29349477 TI - Isomerism and reactivity of nickel(ii) acetylacetonate bis(thiosemicarbazone) complexes. AB - The complexation of nickel(ii) with acetylacetonate bis(thiosemicarbazone) N2S2 ligands with varying substituents has revealed that two isomers can exist independently in solution. These isomers differ according to the formation of either a 5,6,5-membered (symmetric) or a 4,7,5-membered (asymmetric) chelate ring arrangement. These two isomers have distinctly different properties. The symmetric complex (sym-[Ni(acacR)]) is unstable in the presence of air and slowly converts to the oxidised analogue sym-[Ni(acacRO)] with a carbonyl group installed at the apical C-atom. The mechanism of this O-atom transfer reaction is still unclear but kinetic and spectroelectrochemical experiments in addition to Density Functional Theory calculations have identified a single electron oxidised NiII-ligand radical complex as a key intermediate. By contrast the asymmetric complex, asym-[Ni(acacR)] is inert to ligand oxidation. PMID- 29349478 TI - Affinity to host population stimulates physical growth in adult offspring of Turkish migrants in Germany. AB - ABSTRACT: Because of political conflicts and climate change, migration will be increased worldwide and integration in host societies is a challenge also for migrants. We hypothesize that migrants, who take up the challenge in a new social environment are taller than migrants who do not pose this challenge. We analyze by a questionnaire possible social, nutritional and ethnic influencing factors to body height (BH) of adult offspring of Turkish migrants (n = 82, 39 males) aged from 18 to 34 years (mean age 24.6 years). The results of multiple regression (downward selection) show that the more a male adult offspring of Turkish migrants feels like belonging to the Turkish culture, the smaller he is (95% CI, 3.79, -0.323). Further, the more a male adult offspring of Turkish migrants feels like belonging to the German culture, the taller he is (95% CI, -0.152, 1.738). We discussed it comparable to primates taking up their challenge in dominance, where as a result their body size increase is associated with higher IGF-1 level. IGF-1 is associated with emotional belonging and has a fundamental role in the regulation of metabolism and growth of the human body. With all pilot characteristics of our study results show that the successful challenge of integration in a new society is strongly associated with the emotional integration and identification in the sense of a personal sense of belonging to society. We discuss taller BH as a signal of social growth adjustment. In this sense, a secular trend of BH adaptation of migrants to hosts is a sign of integration. PMID- 29349479 TI - Resilience and protective factors among people with a history of child maltreatment: a systematic review. AB - PURPOSE: To provide an overview of resilience and protective factors associated with a better life following child maltreatment exposure, to compare protective factors across specific subtypes of maltreatment, and to explore existing issues in the current state of the literature. METHODS: Electronic databases and grey literature up to October 2017 were systematically searched for English language with observational study designs for the research on resilience and childhood maltreatment. Systematic review and qualitative approaches were used to synthesize the results. Study quality and heterogeneity were also examined. RESULTS: Initial screening of titles and abstracts resulted in 247 papers being reviewed. A total of 85 articles met eligibility criteria of this review. Most of these studies had low or middle study quality. There were two subgroups of studies reviewed: (1) 11 studies examined whether resilience protected against the negative consequence of childhood maltreatment, and, (2) 75 studies explored what protective factor was associated with a kind of adaptive functioning. Although the conceptualization of resilience significantly varied from study to study, protective factors associated with resilience at individual, familial, and societal levels reduced the likelihood of negative consequences of childhood maltreatment. Negative consequences following childhood maltreatment can be prevented or moderated if protective factors are provided in time. Future research needs to address the conceptualization issue of resilience. CONCLUSIONS: Public and population mental health preventions should focus on early childhood and apply preventive strategies as early as possible. Cost-effective studies should be considered in the evaluation of resilience prevention program. PMID- 29349480 TI - Posture modulates the sensitivity of the H-reflex. AB - The effect of body posture on the human soleus H-reflex via electrical stimulation of the tibial nerve at the popliteal fossa was studied. All parameters that may influence the reflex were controlled stringently. H-reflexes were elicited in three different body postures while keeping the level of background muscle activation to a minimum. The H-reflex curve relative to the M wave curve did not change significantly in any of the body postures. However, the maximal H-reflex amplitude significantly increased in the prone position compared with the sitting (p = 0.02) and standing positions (p = 0.01). The background level of electrical activity of the soleus muscle did not significantly change during varying body postures. Together, these findings indicate that the effectiveness of the spindle primary afferent synapse on the soleus motor neuron pool changes significantly in prone position as compared to sitting and standing positions. Given that we have controlled the confounding factors excluding the head position relative to the gravity and the receptors that may be differentially activated at varying body postures such as the proprioceptors, it is concluded that the tonic activity from these receptors may presynaptically interfere with the effectiveness of the spindle primary afferent synapses on the soleus motor neurons. PMID- 29349481 TI - Systematic review and comparison of national and international guidelines on diverticular disease. AB - PURPOSE: Diverticular disease is common and of increasing medical and economical importance. Various practice guidelines on diagnostic and treatment on this disease exist. We compared current guidelines on the disease in order to identify concordant and discordant recommendations. METHOD: Eleven national and international guidelines on diverticular disease published over the last 10 years have been identified by a systematic literature review on PubMed and compared in detail for 20 main and 51 subtopics. RESULTS: The available evidence for the most aspects was rated as moderate or low. There was concordance for the following items: Diagnosis of diverticulitis should be confirmed by imaging methods (10 of 10 guidelines). Mild forms may be treated out-patient (10/10). Abscesses are treated non-surgically (9/9). Elective surgery should be indicated by individual patient-related factors, only, and be performed laparoscopically (10/10, 9/9 respectively). Main differences were found in the questions of appropriate classification, imaging diagnostic (computed-tomography versus ultra-sound), need for antibiotics in out-patient treatment and mode of surgery for diverticular perforation. Despite growing evidence that antibiotics are not needed for treating mild diverticulitis, only 3/10 guidelines have corresponding recommendations. Hartmann's procedure has been abandoned several years ago and is now recommended for feculent peritonitis by the three most recent guidelines. In contrast, laparoscopic lavage without resection is not recommended anymore. CONCLUSION: There are dissents in the recommendations for central aspects regarding the diagnostic and treatment of diverticular disease in recently published guidelines. PMID- 29349482 TI - [Esophageal diverticula (excluding cricopharyngeal diverticula)]. AB - Diverticula of the middle and lower third of the esophagus are commonly associated with esophageal motility disorders. The increase of intraluminal pressure leads to an outpouching of the mucosal and submucosal layers through the esophageal muscle coat. These pouches are also called false diverticula, because they only consist of the mucosal and submucosal esophageal layers. In contrast, the more rarely encountered true diverticula that retain the complete esophageal wall are generally associated with periesophageal granulomatous lymph node disease. Treatment of both true and false diverticula is generally indicated in symptomatic patients; however, even state of the art minimally invasive surgery is accompanied by considerable perioperative morbidity and should only be performed in carefully selected patients. This aim of this article is to summarize the available scientific evidence and to provide the reader with an updated guide to best clinical practice in the treatment of esophageal diverticula. PMID- 29349483 TI - Surgical Outcomes of Primary Versus Post-Neoadjuvant Chemotherapy Breast Conservation Surgery: A Comparative Study from a Developing Country. AB - INTRODUCTION: In India and other developing countries, breast conservation surgery (BCS) rates in breast cancer patients are low due to advanced disease at presentation and misconceptions about BCS outcomes. Many patients presenting with large or locally advanced breast cancers (LABC) can be offered post-neoadjuvant chemotherapy (NACT) BCS, safety of which is not as well established as that of primary BCS. This retrospective study compared pathological and surgical outcome parameters in patients undergoing primary and post-NACT BCS. METHODS: All non metastatic breast cancer patients undergoing BCS during 2011-2015 with 1-year follow-up were included. Outcome parameters in form of margin infiltration, ipsilateral breast tumor recurrence (IBTR) rates and IBTR-free survival were compared between primary and post-NACT BCS patients groups. RESULTS: One hundred and twenty-nine patients underwent BCS; 95 underwent primary and 34 post-NACT BCS. Patients in both groups underwent similar multimodality treatment as per institutional protocols. Post-NACT patients more frequently required oncoplastic volume displacement or replacement surgery (p = 0.002). Re-excision of infiltrated margins was needed more frequently in primary BCS compared with post NACT BCS group (14.4 vs. 8.8%; p = 0.40). IBTR (Mean follow-up = 30.7 months) was seen in 8.8% post-NACT patients compared with 2.1% primary BCS (p = 0.114). IBTR free survival did not differ significantly between the groups in stage-wise comparison. CONCLUSION: Post-NACT BCS is safe even in large tumors and LABC, though many require oncoplastic procedures for satisfactory cosmesis. In a developing country where many patients present with large breast cancers or LABC, the benefits of BCS can be offered to a majority with the help of NACT, without compromising the chances of cure. PMID- 29349484 TI - Overall Survival of Papillary Thyroid Carcinoma Patients: A Single-Institution Long-Term Follow-Up of 5897 Patients. AB - INTRODUCTION: Papillary thyroid carcinoma (PTC) generally shows an excellent prognosis except in cases with aggressive backgrounds or clinicopathological features. Although the cause-specific survival (CSS) of PTC patients has been extensively investigated, the overall survival (OS) of these patients is unclear. We herein investigated both the OS and CSS of a large PTC patient series. MATERIALS AND METHODS: We enrolled 5897 PTC patients who underwent initial surgery between 1987 and 2005 (658 males and 5339 females; median age 51 years). Their median postoperative follow-up period was 177 months. Univariate and multivariate analyses for OS and CSS assessed the effects of gender, older age (>=55 years), distant metastasis at diagnosis (M1), significant extrathyroid extension, tumor size (cutoffs 2 and 4 cm), large node metastasis (N >= 3 cm), and extranodal tumor extension. RESULTS: To date, 387 patients (7%) in this series have died from various causes, including 117 (2%) due to PTC. The 10-, 15 , and 20-year OS rates are 97, 95, and 90%, respectively. Older age and M1 were important prognostic factors for OS and CSS. Older age was a more significant factor than M1 for OS and vice versa for CSS. In the older patients, M1 was a prominent prognostic factor for both OS and CSS. In the young patients, M1 had less prognostic impact than in the older patients, and the prognostic values of M1 and N >= 3 cm for OS and CSS were identical and similar, respectively. CONCLUSIONS: The most important prognostic value for OS was patient age, indicating that PTC is generally indolent. However, the control of distant metastasis in older patients remains a future challenge in order to further improve their OS and CSS. PTC of >=3 cm in young patients should be carefully followed, even in the absence of metastases, and these patients should undergo aggressive therapies for recurrent lesions and metastases. PMID- 29349485 TI - Undiagnosed Primary Hyperparathyroidism and Recurrent Miscarriage: The First Prospective Pilot Study. AB - BACKGROUND: Primary hyperparathyroidism (pHPT) in pregnancy is reported to be associated with significant maternal and foetal complications and an up to threefold increase in the risk of miscarriage. However, the true incidence of pHPT in pregnancy, complete and miscarried, is unknown and there are no data on the prevalence of undiagnosed pHPT in recurrent miscarriage (RM) (>=3 consecutive miscarriages under 24-week gestation). This is the first prospective study aiming to establish the prevalence of undiagnosed pHPT in RM. METHODS: Following UK National ethics committee approval, women who had experienced 3 or more consecutive miscarriages were recruited from a nationwide RM clinic. Serum corrected calcium, phosphate, PTH and vitamin D were evaluated. Patients with raised serum calcium and/or PTH were recalled for confirmatory tests. Power calculations suggested that a minimum of 272 patients were required to demonstrate a clinically significant incidence of pHPT. RESULTS: Three hundred women were recruited, median age 35 years (range 19-42). Eleven patients had incomplete data, leaving 289 patients suitable for analysis; 50/289 patients (17%) with abnormal tests were recalled. The prevalence of vitamin D deficiency (<25 nmol/l) and insufficiency (25-75 nmol/l) was 8.7 and 67.8%, respectively. One patient was diagnosed with pHPT (0.34%) and underwent successful parathyroidectomy. CONCLUSIONS: The prevalence of undiagnosed pHPT (0.34%) in RM in this study appears to be many times greater than the 0.05% expected in this age group. The findings of this pilot study merit follow-up with a larger-scale study. Routine serum calcium estimation is not currently undertaken in RM and should be considered. PMID- 29349486 TI - Hydatid Cyst of the Liver: A Challenge that can be Amplified Shifting from Open to Laparoscopic Surgery. PMID- 29349487 TI - Lay First Responder Training in Eastern Uganda: Leveraging Transportation Infrastructure to Build an Effective Prehospital Emergency Care Training Program. AB - BACKGROUND: Though road traffic injuries (RTIs) are a major cause of mortality in East Africa, few countries have emergency medical services. The aim was to create a sustainable and efficient prehospital lay first responder program, creating a system with lay first responders spread through the 53 motorcycle taxi stages of Iganga Municipality. METHODS: One hundred and fifty-four motorcycle taxi riders were taught a first aid curriculum in partnership with a local Red Cross first aid trainer and provided with a first aid kit following WHO guidelines for basic first aid. Pre- and post-survey tests measured first aid knowledge improvement over the course. Post-implementation incident report forms were collected from lay first responders after each patient encounter over 6 months. Follow-up interviews were conducted with 110 of 154 trainees, 9 months post-training. RESULTS: Improvement was measured across all five major first aid categories: bleeding control (56.9 vs. 79.7%), scene management (37.6 vs. 59.5%), airway and breathing (43.4 vs. 51.6%), recovery position (13.1 vs. 43.4%), and victim transport (88.2 vs. 94.3%). From the incident report findings, first responders treated 250 victims (82.8% RTI related) and encountered 24 deaths (9.6% of victims). Of the first aid skills, bleeding control and bandaging was used most often (55.2% of encounters). Lay first responders provided transport in 48.3% of encounters. Of 110 lay first responders surveyed, 70 of 76 who had used at least one skill felt "confident" in the care they provided. CONCLUSION: A prehospital care system composed of lay first responders can be developed leveraging existing transport organizations, offering a scalable alternative for LMICs, demonstrating usefulness in practice and measurable educational improvements in trauma skills for non-clinical lay responders. PMID- 29349488 TI - One-step synthesis of an 18F-labeled boron-derived methionine analog: a substitute for 11C-methionine? AB - Amino acid-based tracers have been extensively investigated for positron emission tomography (PET) imaging of brain tumors, and 11C-methionine (11C-MET) is one of the most extensively investigated. However, widespread clinical use of 11C-MET is challenging due to the short half-life of 11C and low radiolabeling yield. In this issue of the European Journal of Nuclear Medicine and Molecular Imaging, Yang and colleagues report an 18F-labeled boron-derived methionine analog, 18F-B MET, as a potential substitute for 11C-MET in PET imaging of glioma. The push button synthesis, highly efficient radiolabeling, and good imaging performance in glioma models make this tracer a promising candidate for future clinical translation. PMID- 29349489 TI - Characterization of multiple antilisterial peptides produced by sakacin P producing Lactobacillus sakei subsp. sakei 2a. AB - Antimicrobial compounds produced by lactic acid bacteria can be explored as natural food biopreservatives. In a previous report, the main antimicrobial compounds produced by the Brazilian meat isolate Lactobacillus sakei subsp. sakei 2a, i.e., bacteriocin sakacin P and two ribosomal peptides (P2 and P3) active against Listeria monocytogenes, were described. In this study, we report the spectrum of activity, molecular mass, structural identity and mechanism of action of additional six antilisterial peptides produced by Lb. sakei 2a, detected in a 24 h-culture in MRS broth submitted to acid treatment (pH 1.5) and proper fractionation and purification steps for obtention of free and cell-bound proteins. The six peptides presented similarity to different ribosomal proteins of Lb. sakei subsp sakei 23K and the molecular masses varied from 4.6 to 11.0 kDa. All peptides were capable to increase the efflux of ATP and decrease the membrane potential in Listeria monocytogenes. The activity of a pool of the obtained antilisterial compounds [enriched active fraction (EAF)] against Listeria monocytogenes in a food model (meat gravy) during refrigerated storage (4 degrees C) for 10 days was also tested and results indicated that the populations of L. monocytogenes in the food model containing the acid extract remained lower than those at time 0-day, evidencing that the acid extract of a culture of Lb. sakei 2a is a good technological alternative for the control of growth of L. monocytogenes in foods. PMID- 29349490 TI - Auto-aggregation properties of a novel aerobic denitrifier Enterobacter sp. strain FL. AB - Enterobacter sp. strain FL was newly isolated from activated sludge and exhibited significant capability of auto-aggregation as well as aerobic denitrification. The removal efficiencies of NO3--N, total nitrogen (TN), and TOC by strain FL in batch culture reached 94.6, 63.9, and 72.5% in 24 h, respectively. The production of N2O and N2 in the presence of oxygen demonstrated the occurrence of aerobic denitrification. The auto-aggregation index of strain FL reached 54.3%, suggesting a high tendency that the cells would agglomerate into aggregates. The production of extracellular polymeric substances (EPSs), which were mainly composed of proteins followed by polysaccharides, was considered to be related to the cell aggregation according to Fourier transform infrared (FT-IR) and confocal laser scanning microscopy (CLSM). The proteins in EPS were evenly and tightly combined to cells and altered the protein secondary structures of cell surface from random coils to beta-sheets and three-turn helices. The alteration of protein secondary structures of cell surface caused by the proteins in EPS might play a dominant role in the auto-aggregation of strain FL. To further assess the feasibility of strain FL for synthetic wastewater treatment, a sequencing batch reactor (SBR), solely inoculated with strain FL, was conducted. During the 16 running cycles, the removal efficiency of NO3--N was 90.2-99.7% and the auto aggregation index was stabilized at 35.0-41.5%. The EPS promoted the biomass of strain FL to aggregate in the SBR. PMID- 29349491 TI - Formulation and stabilization of an Arthrobacter strain with good storage stability and 4-chlorophenol-degradation activity for bioremediation. AB - Chlorophenols are widespread and of environmental concern due to their toxic and carcinogenic properties. Development of less costly and less technically challenging remediation methods are needed; therefore, we developed a formulation based on micronized vermiculite that, when air-dried, resulted in a granular product containing the 4-chlorophenol (4-CP)-degrading Gram-positive bacterium Arthrobacter chlorophenolicus A6. This formulation and stabilization method yielded survival rates of about 60% that remained stable in storage for at least 3 months at 4 degrees C. The 4-CP degradation by the formulated and desiccated A. chlorophenolicus A6 cells was compared to that of freshly grown cells in controlled-environment soil microcosms. The stabilized cells degraded 4-CP equally efficient as freshly grown cells in two different set-ups using both hygienized and non-treated soils. The desiccated microbial product was successfully employed in an outdoor pot trial showing its effectiveness under more realistic environmental conditions. No significant phytoremediation effects on 4-CP degradation were observed in the outdoor pot experiment. The 4-CP degradation kinetics from both the microcosms and the outdoor pot trial were used to generate a predictive model of 4-CP biodegradation potentially useful for larger-scale operations, enabling better bioremediation set-ups and saving of resources. This study also opens up the possibility of formulating and stabilizing also other Arthrobacter strains possessing different desirable pollutant-degrading capabilities. PMID- 29349492 TI - Ganoderma lucidum phosphoglucomutase is required for hyphal growth, polysaccharide production, and cell wall integrity. AB - Phosphoglucomutase (pgm) is an important enzyme in carbohydrate metabolism that is located at the branching point between glycolysis and the Leloir pathway. pgm catalyzes the reversible conversion reaction between glucose-6-phosphate (Glc-6 P) and glucose-1-phosphate (Glc-1-P). The glpgm gene was cloned in Escherichia coli, and the recombinant pgm protein from Ganoderma lucidum was purified in this study. The activity of native pgm was also detected to demonstrate that this predicted gene was functional in G. lucidum. Interestingly, silencing the glpgm gene in the fungus reduced hyphal growth. Moreover, glpgm silencing was associated with declining extracellular polysaccharide (EPS) production (approximately 20-40% of that in the WT strain) and increasing intracellular polysaccharide (IPS) production (approximately 1.7-fold that in the WT strain). Additionally, in our research, cell wall components were also shown to differ according to the glpgmi strain. Compared with WT, chitin significantly increased by 1.5-fold; however, the content of beta-1,3-glucan was observably reduced to 60 70% that of the WT. Further research showed that the cell wall component changes were associated with the transcription of related genes. These findings provide references for further study on the potential physiological function of pgm in G. lucidum. PMID- 29349493 TI - Biotic elicitation of ginsenoside metabolism of mutant adventitious root culture in Panax ginseng. AB - Biotic elicitation is an important biotechnological strategy for triggering the accumulation of secondary metabolites in adventitious root cultures. These biotic elicitors can be obtained from safe, economically important strains of bacteria found in the rhizosphere and fermented foods. Here, we assayed the effects of filtered cultures of five nitrogen-fixing bacteria and four types of fermentation bacteria on mutant adventitious Panax ginseng root cultures induced in a previous study by colchicine treatment. The biomass, pH, and electrical conductivity (EC) of the culture medium were altered at 5 days after treatment with bacteria. The saponin content was highest in root cultures treated with Mesorhizobium amorphae (GS3037), with a concentration of 105.58 mg g-1 dry weight saponin present in these cultures versus 74.48 mg g-1 dry weight in untreated root cultures. The accumulation of the ginsenosides Rb2 and Rb3 dramatically increased (19.4- and 4.4-fold, and 18.8- and 4.8-fold) 5 days after treatment with M. amorphae (GS3037) and Mesorhizobium amorphae (GS336), respectively. Compound K production increased 1.7-fold after treatment with M. amorphae (GS3037) compared with untreated root cultures. These results suggest that treating mutant adventitious root cultures with biotic elicitors represents an effective strategy for increasing ginsenoside production in Panax ginseng. PMID- 29349494 TI - Light scattering on PHA granules protects bacterial cells against the harmful effects of UV radiation. AB - Numerous prokaryotes accumulate polyhydroxyalkanoates (PHA) in the form of intracellular granules. The primary function of PHA is the storage of carbon and energy. Nevertheless, there are numerous reports that the presence of PHA granules in microbial cells enhances their stress resistance and fitness when exposed to various stress factors. In this work, we studied the protective mechanism of PHA granules against UV irradiation employing Cupriavidus necator as a model bacterial strain. The PHA-accumulating wild type strain showed substantially higher UV radiation resistance than the PHA non-accumulating mutant. Furthermore, the differences in UV-Vis radiation interactions with both cell types were studied using various spectroscopic approaches (turbidimetry, absorption spectroscopy, and nephelometry). Our results clearly demonstrate that intracellular PHA granules efficiently scatter UV radiation, which provides a substantial UV-protective effect for bacterial cells and, moreover, decreases the intracellular level of reactive oxygen species in UV-challenged cells. The protective properties of the PHA granules are enhanced by the fact that granules specifically bind to DNA, which in turn provides shield-like protection of DNA as the most UV-sensitive molecule. To conclude, the UV-protective action of PHA granules adds considerable value to their primary storage function, which can be beneficial in numerous environments. PMID- 29349495 TI - Genomic-driven discovery of an amidinohydrolase involved in the biosynthesis of mediomycin A. AB - Clethramycin (1) and mediomycin A (2) belong to the linear polyene polyketide (LPP) family of antibiotics that exhibit potent antifungal activity. Structural similarities exist between 1 and 2, except that 2 contains an amino moiety substituted for the guanidino moiety. Herein, the draft genome sequence of Streptomyces mediocidicus ATCC23936, a strain which produces both 1 and 2, was obtained through de novo sequencing. Bioinformatic analysis of the genome revealed a clethramycin (cle) gene cluster that contained 25 open reading frames (orfs). However, amidinohydrolase for 2 formation was not found in the cle gene cluster. Further genomic analysis revealed an amidinohydrolase MedX, which can hydrolyse the guanidino form (1) into the amino form (2) via heterologous co expression of the cle cluster in Streptomyces lividans or by in vitro catalysis. These results also suggest the feasibility of engineering novel LPPs for drug discovery by manipulating the biosynthetic machinery of S. mediocidicus. PMID- 29349498 TI - Plasma metabolites associated with type 2 diabetes in a Swedish population: a case-control study nested in a prospective cohort. AB - AIMS/HYPOTHESIS: The aims of the present work were to identify plasma metabolites that predict future type 2 diabetes, to investigate the changes in identified metabolites among individuals who later did or did not develop type 2 diabetes over time, and to assess the extent to which inclusion of predictive metabolites could improve risk prediction. METHODS: We established a nested case-control study within the Swedish prospective population-based Vasterbotten Intervention Programme cohort. Using untargeted liquid chromatography-MS metabolomics, we analysed plasma samples from 503 case-control pairs at baseline (a median time of 7 years prior to diagnosis) and samples from a subset of 187 case-control pairs at 10 years of follow-up. Discriminative metabolites between cases and controls at baseline were optimally selected using a multivariate data analysis pipeline adapted for large-scale metabolomics. Conditional logistic regression was used to assess associations between discriminative metabolites and future type 2 diabetes, adjusting for several known risk factors. Reproducibility of identified metabolites was estimated by intra-class correlation over the 10 year period among the subset of healthy participants; their systematic changes over time in relation to diagnosis among those who developed type 2 diabetes were investigated using mixed models. Risk prediction performance of models made from different predictors was evaluated using area under the receiver operating characteristic curve, discrimination improvement index and net reclassification index. RESULTS: We identified 46 predictive plasma metabolites of type 2 diabetes. Among novel findings, phosphatidylcholines (PCs) containing odd-chain fatty acids (C19:1 and C17:0) and 2-hydroxyethanesulfonate were associated with the likelihood of developing type 2 diabetes; we also confirmed previously identified predictive biomarkers. Identified metabolites strongly correlated with insulin resistance and/or beta cell dysfunction. Of 46 identified metabolites, 26 showed intermediate to high reproducibility among healthy individuals. Moreover, PCs with odd-chain fatty acids, branched-chain amino acids, 3-methyl-2-oxovaleric acid and glutamate changed over time along with disease progression among diabetes cases. Importantly, we found that a combination of five of the most robustly predictive metabolites significantly improved risk prediction if added to models with an a priori defined set of traditional risk factors, but only a marginal improvement was achieved when using models based on optimally selected traditional risk factors. CONCLUSIONS/INTERPRETATION: Predictive metabolites may improve understanding of the pathophysiology of type 2 diabetes and reflect disease progression, but they provide limited incremental value in risk prediction beyond optimal use of traditional risk factors. PMID- 29349499 TI - Spatial coverage of mangrove communities in the Arabian Gulf. AB - Mangroves are the natural protectors of the coast, carbon sinks, and a nursery to many terrestrial as well as aquatic organisms. Different effects caused by natural forces together with anthropogenic factors have reduced mangrove cover on a global scale, yet little is known about the overall surface covered by mangroves in the Arabian Gulf. Therefore, the aim of this study was to examine their spatial coverage and distribution along the Gulf coastlines, using 25 satellite imagery recently acquired from Landsat 8 data for the year 2017. This study found about 165 km2 of fragmented scattered mangroves, mostly intense in the United Arab Emirates, where plantation projects have likely played a significant role in increasing their cover over the years. Whereas mangrove in Kuwait is rare, areas like Bahrain, Qatar and Saudi Arabia remained stable with a slight increase. However, mangroves in Iran appear to suffer a decline throughout the years. PMID- 29349502 TI - A biomechanical comparison of different fixation techniques for fractures of the acetabular posterior wall. AB - PURPOSE: This study aimed to evaluate the biomechanical stability of different fixation techniques for fractures of the acetabular posterior wall. The hypothesis was that a reconstruction plate, combined with compression screw fixation and a plate placed lateral to the screws, would achieve a higher peak load to failure and stiffness and reduced gapping during cycle loading than other fixation techniques. METHODS: A total of 24 Sawbone pelvis models were created with simulated fractures at the posterior wall of the acetabulum. Anatomic reduction and internal fixation were performed randomly using one of four techniques: (A) reconstruction plate and compression screw fixation was placed with a plate medial to the screws; (B) plate and screw fixation with the plate located lateral to the screws; (C) plate fixation alone, and (D) screw fixation alone. Six models were tested in each group under cyclic and sustaining loading tests. Peak load to failure and stiffness were calculated from load displacement curves. RESULTS: Peak load to failure and stiffness in group B (3698.71 N and 2900.48 N/mm, respectively), featuring reconstruction plate and compression screw fixation with the plate placed lateral to the screws, were significantly higher than groups C (2508.74 N, 1602.75 N/mm) and D (2332.06 N, 1454.26 N/mm). No statistical differences were observed when group A (2941.60 N, 2136.50 N/mm) was compared with the other groups. There were no significant differences in gapping between groups. CONCLUSIONS: Fixation using a reconstruction plate and compression screws placed lateral to the screws may address acetabular posterior wall fractures in a more appropriate manner than techniques using only plates or screws. However, this study does not provide evidence to support the fact that placing the plate lateral to the screws is advantageous in comparison with other techniques. PMID- 29349500 TI - Exogenous H2S switches cardiac energy substrate metabolism by regulating SIRT3 expression in db/db mice. AB - : Hydrogen sulfide (H2S) is involved in diverse physiological functions, such as anti-hypertension, anti-proliferation, regulating ATP synthesis, and reactive oxygen species production. Sirtuin 3 (SIRT3) is a NAD + -dependent deacetylase that regulates mitochondrial energy metabolism. The role of H2S in energy metabolism in diabetic cardiomyopathy (DCM) may be related to regulate SIRT3 expression; however, this role remains to be elucidated. We hypothesized that exogenous H2S could switch cardiac energy metabolic substrate preference by lysine acetylation through promoting the expression of SIRT3 in cardiac tissue of db/db mice. Db/db mice, neonatal rat cardiomyocytes, and H9c2 cell line with the treatment of high glucose, oleate, and palmitate were used as animal and cellular models of type 2 diabetes. Using LC-MS/MS, we identified 76 proteins that increased acetylation, including 8 enzymes related to fatty acid beta-oxidation and 7 enzymes of the tricarboxylic acid (TCA) cycle in the db/db mice hearts compared to those with the treatment of NaHS. Exogenous H2S restored the expression of NAMPT and the ratio of NAD+/NADH enhanced the expression and activity of SIRT3. As a result of activation of SIRT3, the acetylation level and activity of fatty acid beta-oxidation enzyme LCAD and the acetylation of glucose oxidation enzymes PDH, IDH2, and CS were reduced which resulted in activation of PDH, IDH2, and CS. Our finding suggested that H2S induced a switch in cardiac energy substrate utilization from fatty acid beta-oxidation to glucose oxidation in DCM through regulating SIRT3 pathway. KEY MESSAGES: H2S regulated the acetylation level and activities of enzymes in fatty acid oxidation and glucose oxidation in cardiac tissues of db/db mice. Exogenous H2S decreased mitochondrial acetylation level through upregulating the expression and activity of SIRT3 in vivo and in vitro. H2S induced a switch in cardiac energy substrate utilization from fatty acid oxidation to glucose. PMID- 29349503 TI - Is there any difference between open and arthroscopic treatment for osteochondritis dissecans (OCD) of the humeral capitellum: a systematic review and meta-analysis. AB - PURPOSE: We present a systematic review of the recent literatures regarding the arthroscopic and open technique in fragment fixation for osteochondritis dissecans (OCD) of the humeral capitellum and an analysis of the subjective and objective outcomes between these two procedures. METHODS: PubMed and EMBASE were reviewed for suitable articles relating to fragment fixation for OCD, both open and arthroscopic. We included all studies reporting on the clinical outcomes of these two procedures that were published in the English language. Data extracted from each study included level of evidence, number of patients, surgical techniques, length of follow-up, clinical outcome measures including outcome scores, range of motion (ROM), return to sports, osseous union and complications. We analyzed each study to determine the primary outcome measurement. RESULTS: A total of ten studies met our inclusion criteria. Among all studies, 35 arthroscopic procedures and 107 open procedures were performed. After the procedure, 70 patients (86.4%) in the open group returned to their sports, and 32 patients (91.4%) in the arthroscopic group returned to their sports. In the arthroscopic group, patients gained 14.1 degrees of flexion and 9.5 degrees of extension after surgery. In the open group, patients gained 8 degrees of flexion and 5.7 degrees of extension. Five patients (4.7%) had complications in the open group. No complication was found in the arthroscopic group. CONCLUSIONS: Both open and arthroscopic lesion debridement with fragment fixation are successful in treating unstable OCD. The arthroscopic technique may be a better choice than the open procedure, but we need high-level evidence to determine the superiority of the open or arthroscopic techniques in treating elbow OCD. LEVEL OF EVIDENCE: Level III. PMID- 29349504 TI - Oral bacterial colonization on dental implants restored with titanium or zirconia abutments: 6-month follow-up. AB - OBJECTIVE: This investigation aimed to characterize in a 6-month follow-up the microbial profile of implants restored with either titanium or zirconia abutments at the genus or higher taxonomic levels. METHODS: Twenty healthy individuals indicative for implant-retained single restorations were investigated. Half of participants were restored with titanium and half with zirconia abutments. Biofilm was collected from the implant-related sites after 1, 3, and 6 months of loading. The 16S rDNA genes were amplified and sequenced with Roche/454 platform. RESULTS: A total of 596 species were identified in 360 samples and grouped in 18 phyla and 104 genera. Titanium- or zirconia-related sites as well as teeth showed similar total numbers of operational taxonomic units (OTUs) colonizing surfaces over time. Firmicutes, Proteobacteria, Fusobacteria, Bacteroidetes, and Actinobacteria were the most prevalent phyla with significant differences between different surfaces and time point. Unclassified genera were found in lower levels (1.71% up to 9.57%) on titanium and zirconia samples when compared with teeth, with no significant differences. CONCLUSION: Titanium- and zirconia-related surfaces are promptly colonized by a bacterial community similar to those found in the remaining adjacent teeth. Results suggest a selective adhesion of different bacterial genotypes for either titanium or zirconia surfaces. Data also indicate a significant interaction between the relative effects taxa, time point, and sampling site. CLINICAL RELEVANCE: The present study disclosed a wider spectrum of microorganisms colonizing either titanium- or zirconia-related microbiomes in very early stage of implant colonization, revealing differences and suggesting a probably specific mechanism for selective bacterial adhesion. PMID- 29349505 TI - Embracing your emotions: affective state impacts lateralisation of human embraces. AB - Humans are highly social animals that show a wide variety of verbal and non verbal behaviours to communicate social intent. One of the most frequently used non-verbal social behaviours is embracing, commonly used as an expression of love and affection. However, it can also occur in a large variety of social situations entailing negative (fear or sadness) or neutral emotionality (formal greetings). Embracing is also experienced from birth onwards in mother-infant interactions and is thus accompanying human social interaction across the whole lifespan. Despite the importance of embraces for human social interactions, their underlying neurophysiology is unknown. Here, we demonstrated in a well-powered sample of more than 2500 adults that humans show a significant rightward bias during embracing. Additionally, we showed that this general motor preference is strongly modulated by emotional contexts: the induction of positive or negative affect shifted the rightward bias significantly to the left, indicating a stronger involvement of right-hemispheric neural networks during emotional embraces. In a second laboratory study, we were able to replicate both of these findings and furthermore demonstrated that the motor preferences during embracing correlate with handedness. Our studies therefore not only show that embracing is controlled by an interaction of motor and affective networks, they also demonstrate that emotional factors seem to activate right-hemispheric systems in valence-invariant ways. PMID- 29349506 TI - New perspectives on human multitasking. PMID- 29349507 TI - Closing the gap: connecting sudden representational change to the subjective Aha! experience in insightful problem solving. AB - : Two hallmarks of insightful problem solving are thought to be suddenness in the emergence of solution due to changes in problem representation, and the subjective Aha! EXPERIENCE: Although a number of studies have explored the Aha! experience, few studies have attempted to measure representational change. Following the lead of Durso et al. (Psychol Sci 5(2):94-97, 1994) and Cushen and Wiley (Conscious Cognit 21(3):1166-1175, 2012), in this study, participants made importance-to-solution ratings throughout their solution attempts as a way to assess representational change. Participants viewed a set of magic trick videos with the task of finding out how each trick worked, and rated six action verbs for each trick (including one that implied the correct solution) multiple times during solution. They were also asked to indicate the extent to which they experienced an Aha! moment. Patterns of ratings that showed a sudden change towards a correct solution led to stronger Aha! experiences than patterns that showed a more incremental change towards a correct solution, or a change towards incorrect solutions. The results show a connection between sudden changes in problem representations (leading to correct solutions) and the subjective appraisal of solutions as an Aha! EXPERIENCE: This offers the first empirical support for a close relationship between two theoretical constructs that have traditionally been assumed to be related to insightful problem solving. PMID- 29349508 TI - Impact of intervention time on hospital survival in patients requiring emergent airway management: a preliminary study. AB - BACKGROUND: The time in the day of intervention for physiological deterioration reportedly impacts patient outcomes. This study aimed at determining the impact of the time of ETI on hospital survival in critically ill patients. METHODS: Between January 2014 and December 2016, 151 patients who underwent emergency tracheal intubation (ETI) by the airway response team (ART) in the general wards of a tertiary referral center were retrospectively reviewed. Patients were divided into two groups based on the time of ETI (daytime group, 8:00 a.m.-4:00 p.m., n = 57, mean age 63.5 +/- 14.1 years; nighttime group, 4:00 p.m.-8:00 a.m., n = 94, mean age 60.4 +/- 14.9 years). Data regarding demographic information, comorbidities, trigger events for intubation, survival-to-discharge rates, acute physiology and chronic health evaluation II (APACHE II), ventilator-free days, and airway techniques were collected. RESULTS: There was no significant difference in sex, age, body mass index, APACHE II, or comorbidities between the two groups, except that a higher proportion of patients presented with arrhythmias (21.1 vs. 8.5%, p = 0.028) and received fiberoptic intubation (24.6 vs. 11.7%, p = 0.039) in the daytime group than in the nighttime group. The time of the ART arrival after call was also shorter in daytime than that in nighttime (6.1 +/- 1.4 vs. 10.5 +/- 3.2 min, respectively, p < 0.001). There were no differences in the survival-to-discharge rate (45.6 vs. 43.6%, p = 0.811), ventilator-free days, or trigger events between the two groups. CONCLUSIONS: Emergent tracheal intubation in the nighttime may not have negative impact on the survival-to-discharge rate compared with that performed in the daytime. PMID- 29349509 TI - Complex issues in new ultrasound-guided nerve blocks: how to name, where to inject, and how to publish. AB - The recent development of ultrasound-guide nerve block has led to innovation in anesthesia and pain clinics. However, it has also led to some complex issues, including (1) how to name a new technique, (2) the appropriateness of an intramuscular approach, and (3) how to publicize a new technique. This review addresses naming strategy, feasibility of intramuscular approach block, and methods of publication. First, researchers and authors should pay attention to appropriate nomenclature for the term 'approach', 'compartment block', and 'nerve block' for a new block. Second, it is lack of evidences to facilitate muscle injection, and adequate preparation and adherence to proper technique for intramuscular approach block should be considered; confirmation of abnormal signs at the injection area, use of a thin needle and the lowest concentration and volume of local anesthetic without supplementation with steroid or epinephrine, compressing hemostasis, and sufficient interval of the blocks. Third, adequate dissemination of information would also be necessary through publication in appropriate media. We hope this review boost reasonable development of nerve block. PMID- 29349510 TI - Uncertain effect of preventative shoulder rehabilitation for patients who underwent total laryngectomy with neck dissection. AB - INTRODUCTION: Total laryngectomy (TL) with neck dissection (ND) is considered as crucial management for advanced-stage of laryngeal cancer. Shoulder dysfunction has long been recognized as a potential complication resulting from neck dissection. The aim of this study was to evaluate the effect of early prophylactic rehabilitation program in patients who underwent TL with ND. METHODS: A prospective, nonrandomized design was used. Seventy-six participants who underwent TL with ND were assigned into either an intervention or a control group. The control group received current standard care with no formal shoulder exercise provided, while the intervention group attended early preventive rehabilitation lasting 12 weeks. Participants were assessed at baseline, and at 3 and 6 months after surgery. Measured outcomes included shoulder function and patient-reported quality of life. General linear models with repeated measures were used to examine outcome changes in both groups over the designated assessment intervals. RESULTS: Improvement in shoulder function and patient reported quality of life were both statistically significant over time, with no significant difference between control or intervention groups, indicating little or no benefit of preventative intervention on shoulder function outcomes. Analysis involving five subscales and the summary score of the quality of life questionnaire had only statistically significant improvement over time for both the control or intervention groups, except for physical well-being domain which had statistical significance both over time and between the control and intervention groups. CONCLUSION: In this study, preventative exercise program initiated immediately after surgery had a limited impact on both shoulder function and perceived quality of life. PMID- 29349511 TI - Treatment of severe periodontitis with a laser and light-emitting diode (LED) procedure adjunctive to scaling and root planing: a double-blind, randomized, single-center, split-mouth clinical trial investigating its efficacy and patient reported outcomes at 1 year. AB - Broad methodological heterogeneity makes the literature on the clinical effects of laser treatment in periodontitis, both as monotherapy and adjunct to non surgical therapy, which is difficult to interpret. The present split-mouth study was performed: (i) to determine the efficacy and safety of a photoablative photodynamic diode laser therapy, including antiseptic LED irradiation, in adjunct to scaling and root planing (iPAPD+SRP) vs. sham-treatment+SRP for the treatment of diffuse severe periodontitis and (ii) to estimate the patient reported outcomes. Twenty-four patients with severe periodontitis were treated with iPAPD+SRP or sham-treatment+SRP. iPAPD+SRP consisted of the following: (1) intra-/extra-pocket de-epithelization with photoablative lambda 810 nm laser, (2) disinfection with lambda 405 nm LED, (3) SRP, and (4) 10 weekly antiseptic/anti inflammatory photodynamic treatments with lambda 635 nm laser and 0.1% toluidine blue as photosensitizer. Clinical and cytofluorescent periodontal markers and patient-reported results were analyzed. At 1-year follow-up, both groups showed a significant reduction of several severity markers of periodontitis, namely probing depth (PD) and bleeding on probing (BoP), as well as of bacteria, polymorphonuclear cells, erythrocytes and damaged epithelial cells in exfoliative samples, as compared with day 0. The quadrants subjected to iPAPD+SRP showed significantly better values of these parameters as well as of clinical attachment level (CAL) as compared with those undergoing sham-treatment+SRP. The patients' perceived pain/discomfort, and overall liking was also in favor of the iPAPD+SRP treatment. This study confirms the efficacy of combined phototherapy in adjunct to SRP which had emerged from previous clinical trials, extending its field of application to severe periodontitis. PMID- 29349512 TI - Photobiomodulation induces in vitro re-epithelialization via nitric oxide production. AB - Photobiomodulation is a widely used tool in regenerative medicine thanks to its ability to modulate a plethora of physiological responses. Wound re epithelialization is strictly regulated by locally produced chemical mediators, such as nitric oxide (NO), a highly reactive free radical generated by the nitric oxide synthase (NOS) enzymatic family. In this study, it has been hypothesized that a 980-nm low-level laser stimulation could increase NO production in human keratinocytes and that such event might be directly related to the re epithelialization process. Human keratinocytes were irradiated with increasing energy outputs (10-75 J) in the absence or presence of L-NAME, a NOS inhibitor. Laser stimulation induced an increase in NO production, resulting in an energy dependent increase in both keratinocytes proliferation and re-epithelialization ability. The direct link between increased NO production and the observed physiological responses was confirmed by their inhibition in L-NAME pre-treated samples. Since NO production increase is a quick event, it is conceivable that it is due to an increase in existing NOS activity rather than to a de novo protein synthesis. For this reason, it could be hypothesized that photobiomodulation derived NO positive effects on keratinocytes behavior might rely on a near infrared mediated increase in NOS conformational stability and cofactors as well as substrate binding ability, finally resulting in an increased enzymatic activity. PMID- 29349513 TI - 3D-QSAR study of steroidal and azaheterocyclic human aromatase inhibitors using quantitative profile of protein-ligand interactions. AB - Aromatase is a member of the cytochrome P450 superfamily responsible for a key step in the biosynthesis of estrogens. As estrogens are involved in the control of important reproduction-related processes, including sexual differentiation and maturation, aromatase is a potential target for endocrine disrupting chemicals as well as breast cancer therapy. In this work, 3D-QSAR combined with quantitative profile of protein-ligand interactions was employed in the identification and characterization of critical steric and electronic features of aromatase inhibitor complexes and the estimation of their quantitative contribution to inhibition potency. Bioactivity data on pIC50 values of 175 steroidal and 124 azaheterocyclic human aromatase inhibitors (AIs) were used for the 3D-QSAR analysis. For the quantitative description of the effects of the hydrophobic contact and nitrogen-heme-iron coordination on aromatase inhibition, the hydrophobicity density field model and the smallest dual descriptor Deltaf(r) S were introduced, respectively. The model revealed that hydrophobic contact and nitrogen-heme-iron coordination primarily determines inhibition potency of steroidal and azaheterocyclic AIs, respectively. Moreover, hydrogen bonds with key amino acid residues, in particular Asp309 and Met375, and interaction with the heme-iron are required for potent inhibition. Phe221 and Thr310 appear to be quite flexible and adopt different conformations according to a substituent at 4- or 6-position of steroids. Flexible docking results indicate that proper representation of the residues' flexibility is critical for reasonable description of binding of the structurally diverse inhibitors. Our results provide a quantitative and mechanistic understanding of inhibitory activity of steroidal and azaheterocyclic AIs of relevance to adverse outcome pathway development and rational drug design. PMID- 29349514 TI - NB-UVB irradiation downregulates keratin-17 expression in keratinocytes by inhibiting the ERK1/2 and STAT3 signaling pathways. AB - Keratin-17 (K17) is a cytoskeletal protein produced by keratinocytes (KCs), which is overexpressed in psoriasis and may play a pivotal role in its pathogenesis. Narrow-band ultraviolet B (NB-UVB) irradiation is used as a general treatment for psoriasis, although its impact on K17 expression has yet to be determined. In this study, we aimed to investigate the effect of NB-UVB irradiation on K17 expression and its signaling pathways. After exposure to NB-UVB irradiation, immortalized human keratinocytes (HaCaT cells) were analyzed by flow cytometry, CCK-8 assays and transmission electron microscopy to examine proliferation. Meanwhile, K17 expression in primary human epithelial keratinocytes was detected by quantitative real-time polymerase chain reaction (qRT-PCR), western blot analysis and immunofluorescence. HaCaT cells pre-incubated with PD-98059 and piceatannol were subjected to western blot analysis to examine ERK1/2 and STAT3 phosphorylation. The ears of mice treated with imiquimod (IMQ) and irradiated by NB-UVB were taken to examine K17 expression by qRT-PCR, western blot analysis, and immunofluorescence. Our results showed that 400 mJ/cm2 of NB-UVB irradiation was the maximum tolerable dose for HaCaT cells and could cause inhibited HaCaT cell proliferation and moderate increase of the early apoptosis. Furthermore, NB UVB irradiation could downregulate K17 expression by inhibiting the ERK1/2 and STAT3 signaling pathways. In experiments conducted in vivo, NB-UVB irradiation with doses of MED or higher could eliminate the IMQ-induced psoriasis-like dermatitis and inhibit K17 expression. These results indicated that NB-UVB irradiation may eliminate chronic psoriatic plaques by suppressing K17 expression via the ERK1/2 and STAT3 signaling pathways. PMID- 29349515 TI - Matrix metalloproteinase-2 and -9 activity levels increase in cutaneous lupus erythematosus lesions and correlate with disease severity. AB - Lupus erythematosus is a chronic autoimmune disease characterized by remissions and exacerbations. Accumulated evidence indicated that matrix metalloproteinases (MMPs) are upregulated in inflammatory cells of cutaneous lupus erythematosus (CLE); however, the activity levels of these proteases have remained uncharacterized. To elucidate the significance of MMP-2, MMP-9, and TIMP-1 in CLE pathogenesis, gelatin zymography was used to investigate pro and active levels of MMP-2 and MMP-9 in lesional and perilesional skin biopsies obtained from twenty two CLE patients. TIMP-1 protein levels were detected by ELISA in the biopsy specimens. The correlation between biochemical parameters and clinical characteristics of the disease was also evaluated. Significantly higher levels of active MMP-2, active MMP-9, proMMP-9, active/proMMP-2, and TIMP-1 were detected in lesional skin samples. Besides, the active/proMMP-9 was elevated in female and smoking patients. Active MMP-9 levels and active/proMMP-9 were also increased in elderly patients. Active MMP-9 levels were lower in patients who had smaller total damage score. Consistently, active/proMMP-9 and active/proMMP-2 were positively correlated with CLASI. Interestingly, in hydroxychloroquine or topical corticosteroid-treated patients, MMP-2/-9 activity levels were found to be higher compared to untreated patients. These findings suggest that increased MMP-2 and MMP-9 activities may contribute to the pathogenesis of CLE and cutaneous disease severity. PMID- 29349516 TI - New perspectives in the history of twentieth-century life sciences: historical, historiographical and epistemological themes. AB - The history of twentieth-century life sciences is not exactly a new topic. However, in view of the increasingly rapid development of the life sciences themselves over the past decades, some of the well-established narratives are worth revisiting. Taking stock of where we stand on these issues was the aim of a conference in 2015, entitled "Perspectives for the History of Life Sciences" (Munich, Oct 30-Nov 1, 2015). The papers in this topical collection are based on work presented and discussed at and around this meeting. Just as the conference, the collection aims at exploring fields in the history of life sciences that appear understudied, sources that have been overlooked, and novel ways of engaging with this material. The papers convened in this collection may not be representative of the field as a whole; but we feel that they do indicate some elements that have received emphasis in recent years, and may become more central in the years to come, such as the history of previously neglected contexts and domains of the life sciences, the question of continuity and change on the level of practices, the history of complexity and diversity in twentieth-century life sciences and the reconsideration of the relationship between history and philosophy of life sciences. PMID- 29349517 TI - A novel genomic signature predicting FDG uptake in diverse metastatic tumors. AB - BACKGROUND: Building a universal genomic signature predicting the intensity of FDG uptake in diverse metastatic tumors may allow us to understand better the biological processes underlying this phenomenon and their requirements of glucose uptake. METHODS: A balanced training set (n = 71) of metastatic tumors including some of the most frequent histologies, with matched PET/CT quantification measurements and whole human genome gene expression microarrays, was used to build the signature. Selection of microarray features was carried out exclusively on the basis of their strong association with FDG uptake (as measured by SUVmean35) by means of univariate linear regression. A thorough bioinformatics study of these genes was performed, and multivariable models were built by fitting several state of the art regression techniques to the training set for comparison. RESULTS: The 909 probes with the strongest association with the SUVmean35 (comprising 742 identifiable genes and 62 probes not matched to a symbol) were used to build the signature. Partial least squares using three components (PLS-3) was the best performing model in the training dataset cross validation (root mean square error, RMSE = 0.443) and was validated further in an independent validation dataset (n = 13) obtaining a performance within the 95% CI of that obtained in the training dataset (RMSE = 0.645). Significantly overrepresented biological processes correlating with the SUVmean35 were identified beyond glycolysis, such as ribosome biogenesis and DNA replication (correlating with a higher SUVmean35) and cytoskeleton reorganization and autophagy (correlating with a lower SUVmean35). CONCLUSIONS: PLS-3 is a signature predicting accurately the intensity of FDG uptake in diverse metastatic tumors. FDG-PET might help in the design of specific targeted therapies directed to counteract the identified malignant biological processes more likely activated in a tumor as inferred from the SUVmean35 and also from its variations in response to antineoplastic treatments. PMID- 29349519 TI - Agonistic autoantibodies against adrenergic receptors correlating with antihypertensive therapy in long-standing diabetes type 2. PMID- 29349518 TI - Checkpoint Inhibitors, Palliative Care, or Hospice. AB - PURPOSE: Checkpoint (CTLA-4, PD-1, and PD-L1) inhibitors have changed the face of oncology. A subset of patients enjoys long, gratifying treatment responses. Unfortunately, most patients do not respond even when expressing favorably markers such as PD-L1. Checkpoint inhibitors are largely palliative (though a subset have long-term cancer responses) and as such patient-related outcome measures should be included when evaluating benefits. The purpose of this review is to place checkpoint inhibitor trials within a palliation context. Included is a discussion on potential adverse effects on end-of-life care. RECENT FINDINGS: Pivotal studies have presented efficacy and safety data but we have little published data on quality of life or symptom responses. Extension of life is approximately 2-3 months with some long-term responses in a minority of patients. The cost of checkpoint inhibitors is high for utility (as measured by quality adjusted life-year saved) and ranges from 81,000 to over 200,000 USD for quality adjusted life-year saved. Adverse effects were suboptimally reported in multiple studies. Meaningful responses in many trials as defined by the European Society of Medical Oncology are modest. Because at least for now, checkpoint inhibitors are used in advanced cancer and largely palliative patients should be seen by palliative specialists, symptoms related to cancer assessed, and advanced directives addressed. Treatment-related autoimmune diseases represent toxicities which oncologists and palliative specialists must understand. This means that palliative care specialists should know about the benefits and adverse effects of these agents. Whether checkpoint inhibitors increase or decrease aggressive care, hospice referrals, and costs at the end of life is yet to be determined. PMID- 29349520 TI - Experimental Study of 5-fluorouracil Encapsulated Ethosomes Combined with CO2 Fractional Laser to Treat Hypertrophic Scar. AB - OBJECTIVE: This study is designed to explore permeability of ethosomes encapsulated with 5-florouracil (5-FU) mediated by CO2 fractional laser on hypertrophic scar tissues. Moreover, therapeutic and duration effect of CO2 fractional laser combined with 5-FU encapsulated ethosomes in rabbit ear hypertrophic scar model will be evaluated. METHODS: The permeated amount of 5-FU and retention contents of 5-FU were both determined by high-performance liquid chromatography (HPLC). Fluorescence intensities of ethosomes encapsulated with 5 FU (5E) labeled with Rodanmin 6GO (Rho) were measured by confocal laser scanning microscopy (CLSM). The permeability promotion of 5E labeled with Rho in rabbit ear hypertrophic scar mediated by CO2 fractional laser was evaluated at 0 h, 6 h, 12 h, 24 h, 3 days and 7 days after the irradiation. The opening rates of the micro-channels were calculated according to CLSM. The therapeutic effect of 5EL was evaluated on rabbit ear hypertrophic scar in vivo. Relative thickness of rabbit ear hypertrophic scar before and after the treatment was measured by caliper method. Scar elevation index (SEI) of rabbit ear hypertrophic scar was measured using H&E staining. RESULTS: The data showed that the penetration amount of 5EL group was higher than 5E group (4.15 +/- 2.22 vs. 0.73 +/- 0.33; p < 0.05) after 1-h treatment. Additionally, the penetration amount of 5EL was higher than that of the 5E group (107.61 +/- 13.27 vs. 20.73 +/- 3.77; p < 0.05) after 24-h treatment. The retention contents of the 5EL group also showed higher level than 5E group (24.42 +/- 4.37 vs.12.25 +/- 1.64; p < 0.05). The fluorescence intensity of Rho in hypertrophic scar tissues of the 5EL group was higher than that of the 5E group at different time points (1, 6, and 24 h). The opening rates of the micro-channels were decreased gradually within 24 h, and micro-channels were closed completely 3 days after the irradiation by CO2 fractional laser. The relative thickness and SEI of rabbit ear hypertrophic scar after 7 days of treatment in the 5EL group were significantly lower than the 5E group. CONCLUSION: CO2 fractional laser combined with topical 5E can be effective in the treatment of hypertrophic scar in vivo and supply a novel therapy method for human hypertrophic scar. PMID- 29349521 TI - Recent developments in the synthesis and applications of dihydropyrimidin-2(1H) ones and thiones. AB - Dihydropyrimidin-2(1H)-ones/thiones (DHPMs) are important heterocyclic compounds owing to their excellent biological activities and have been widely utilized in pharmaceutical applications. Recently, numerous DHPM derivatives have been prepared. This review covers the synthesis of DHPMs and improved procedures for the preparation of DHPMs from 1995 to 2016. PMID- 29349523 TI - Prognostic factors of pediatric glaucoma: a retrospective study. AB - PURPOSE: To correlate the features of certain types of infantile glaucoma with the progression and the prognosis of the disease, highlighting probable risk factors. METHODS: Seventy-six patients with pediatric glaucoma were recruited in this retrospective study. All patients underwent ophthalmological examination in the Department of Ophthalmology of the Saarland University Medical Center from January 2001 to December 2012. Our pediatric patients were classified into four different categories of glaucoma: (1) primary congenital glaucoma (presenting buphthalmus), (2) aniridia-related glaucoma, (3) Peters/Rieger's anomaly-related glaucoma and (4) congenital cataract-related glaucoma. Personal data comprised age, sex, nationality, systemic diseases and gestational age. The best-corrected visual acuity (BCVA), the cup-disk ratio (CDR), the intraocular pressure (IOP), the corneal diameter and thickness, along with the Haab striae and corneal haze, were recorded. RESULTS: The majority of the children were male (58%) and suffered from aniridia-related glaucoma (38%). Children with aniridia exhibited the worst BCVA. The CDR and IOP were significantly higher in children with primary congenital glaucoma, compared to the other groups, at the first visit. Those children also were with the largest corneal diameter and prevalence of Haab striae compared to the rest groups, whereas corneal haze was found more often and was more pronounced in children with Peters/Rieger's syndrome. CONCLUSIONS: We concluded that glaucoma was earlier detected in children with primary congenital glaucoma, who exhibited increased corneal diameter and high percentage of Haab striae comparing to the other groups. However, these children responded successfully to any therapeutic intervention, exhibiting better BCVA and IOP values than the rest groups at the second visit. PMID- 29349522 TI - Team-Based Care with Pharmacists to Improve Blood Pressure: a Review of Recent Literature. AB - PURPOSE OF REVIEW: We review studies published since 2014 that examined team based care strategies and involved pharmacists to improve blood pressure (BP). We then discuss opportunities and challenges to sustainment of team-based care models in primary care clinics. RECENT FINDINGS: Multiple studies presented in this review have demonstrated that team-based care including pharmacists can improve BP management. Studies highlighted the cost-effectiveness of a team-based pharmacy intervention for BP control in primary care clinics. Little information was found on factors influencing sustainability of team-based care interventions to improve BP control. Future work is needed to determine the best populations to target with team-based BP programs and how to implement team-based approaches utilizing pharmacists in diverse clinical settings. Future studies need to not only identify unmet clinical needs but also address reimbursement issues and stakeholder engagement that may impact sustainment of team-based care interventions. PMID- 29349524 TI - [Qualification and classification of medical apps : What should be noted and what is BfArM's contribution?] AB - Smartphones and tablets with their nearly unlimited number of different applications have become an integral part of everyday life. Thus, mobile devices and applications have also found their way into the healthcare sector.For developers, manufacturers, or users as well, it is often difficult to decide whether a mobile health application is a medical device.In this context, it is extremely important for manufacturers to decide at an early stage of the development whether the product is to be introduced into the market as a medical device and is therefore subject to the legislation on medical devices.This article first presents the regulatory framework and subsequently introduces the reader to the Federal Institute for Drugs and Medical Devices' (BfArM) view of the criteria for differentiating between apps as non-medical products and apps as medical apps as well as the classification thereof. Various examples are presented to demonstrate how these criteria are applied practically and options that support developers and manufacturers in their decision making are shown. The article concludes with a reference to current developments and offers a perspective on the new European medical device regulations MDR/IVDR (Medical Device Regulation/In-Vitro Diagnostic Regulation) as well as on future challenges regarding medical apps. PMID- 29349525 TI - Value of CT pulmonary angiography to predict short-term outcome in patient with pulmonary embolism. AB - To evaluate the role of CT pulmonary angiography (CTPA) in the assessment of pulmonary embolism (PE) severity and the related CT cardiac changes, reflecting the clinical status of the patients and predicting the outcome. A prospective study of 184 patients presented with suspicious acute PE. All patients underwent CTPA followed by ECHO. Pulmonary artery obstructive index (PAOI) using Qanadli Score was calculated and cardiac changes recorded. The patients' outcome was followed up for 30 days. Only 150 patients completed the study; 26.7% needed ICU admission while 13.3% died during follow-up. There was a significant relationship between the PAOI and the risk classification, right ventricular dysfunction (RVD) diagnosed by ECHO and the patients' short outcome. We found PAOI cut off value 45% for mortality and 35% for ICU admission and 27.5% for RVD with 60, 75 and 90% sensitivity and 80, 73.3 and 68.6% specificity respectively. CT RV/LV ratio was the most sensitive parameter to predict RV dysfunction followed by pulmonary artery diameter. CTPA is not only used for diagnosis but also to assess the severity of PE, the effect on the right ventricular function and subsequently the need for ICU admission and prediction of the outcome. PMID- 29349526 TI - Normal pulmonary artery and branch pulmonary artery sizes in children. AB - To establish standards for pulmonary artery and branch pulmonary artery (PA and BPA) effective diameter (ED) and cross-sectional area (CSA) by using computed tomography (CT) data in children of a wide range of sizes and investigate the roundness of arteries. The ED (average of short and long axes) and CSA for the PA and BPA were measured using 1-mm collimation double-oblique reconstructions. Ordinary least squares regression was used to investigate models with various functional forms that related ED and CSA to patient size. Aspect ratio (AR), the short axis divided by long axis, was measured to evaluate roundness. The ideal diameter derived from CSA measurements was compared to ED, short axis, and long axis measurements. 108 CT examinations were analyzed in children without reason for abnormal PA size who ranged in age from 0 to 18 years (mean, 10.9 years; SD, 5.9 years). Interrater reliability was excellent. Data were modeled using a natural log-transformed response variable and a linear term for height as the independent variable. AR for the PA, right pulmonary artery, and left pulmonary artery measured < 0.9 for 38, 55, and 37%, respectively, indicating that many arteries are not round. Ideal diameter was not significantly different than ED but was for short- and long-axis diameter measurements. Normal ED and CSA for PA and BPA were determined for children of different sizes. Measurements outside of the normal range are consistent with dilatation or stenosis. Single diameter techniques are likely to introduce error. PMID- 29349527 TI - Genetic Test Reporting and Counseling for Melanoma Risk in Minors May Improve Sun Protection Without Inducing Distress. AB - Genetic testing of minors is advised only for conditions in which benefits of early intervention outweigh potential psychological harms. This study investigated whether genetic counseling and test reporting for the CDKN2A/p16 mutation, which confers highly elevated melanoma risk, improved sun protection without inducing distress. Eighteen minors (Mage = 12.4, SD = 1.9) from melanoma prone families completed measures of protective behavior and distress at baseline, 1 week (distress only), 1 month, and 1 year following test disclosure. Participants and their mothers were individually interviewed on the psychological and behavioral impact of genetic testing 1 month and 1 year post-disclosure. Carriers (n = 9) and noncarriers (n = 9) reported significantly fewer sunburns and a greater proportion reported sun protection adherence between baseline and 1 year post-disclosure; results did not vary by mutation status. Anxiety symptoms remained low post-disclosure, while depressive symptoms and cancer worry decreased. Child and parent interviews corroborated these findings. Mothers indicated that genetic testing was beneficial (100%) because it promoted risk awareness (90.9%) and sun protection (81.8%) without making their children scared (89.9%); several noted their child's greater independent practice of sun protection (45.4%). In this small initial study, minors undergoing CDKN2A/p16 genetic testing reported behavioral improvements and consistently low distress, suggesting such testing may be safely implemented early in life, allowing greater opportunity for risk-reducing lifestyle changes. PMID- 29349528 TI - Steps to Getting Your Manuscript Published in a High-Quality Medical Journal. AB - Publication of your research represents the culmination of your scientific activities. The key to getting manuscripts accepted is to make them understandable and informative so that your colleagues will read and benefit from them. We describe key criteria for acceptance of manuscripts and outline a multi step process for writing the manuscript. The likelihood that a manuscript will be accepted by a major journal is significantly increased if the manuscript is written in polished and fluent scientific English. Although scientific quality is the most important consideration, clear and concise writing often makes the difference between acceptance and rejection. As with any skill, efficient writing of high-quality manuscripts comes with experience and repetition. It is very uncommon for a manuscript to be accepted as submitted to a journal. Thoughtful and respectful responses to the journal reviewers' comments are critical. Success in scientific writing, as in surgery, is dependent on effort, repetition, and commitment. The transfer of knowledge through a well-written publication in a high-quality medical journal will have an impact not only in your own institution and country, but also throughout the world. PMID- 29349529 TI - Esophageal Cancer Surgery: Spontaneous Centralization in the US Contributed to Reduce Mortality Without Causing Health Disparities. AB - BACKGROUND: Improvement in mortality has been shown for esophagectomies performed at high-volume centers. OBJECTIVE: This study aimed to determine if centralization of esophageal cancer surgery occurred in the US, and to establish its impact on postoperative mortality. In addition, we aimed to analyze the relationship between regionalization of cancer care and health disparities. METHODS: A retrospective population-based analysis was performed using the National Inpatient Sample for the period 2000-2014. Adult patients (>= 18 years of age) diagnosed with esophageal cancer and who underwent esophagectomy were included. Yearly hospital volume was categorized as low (< 5 procedures), intermediate (5-20 procedures), and high (> 20 procedures). Multivariable analyses on the potential effect of hospital volume on patient outcomes were performed, and the yearly rate of esophagectomies was estimated using Poisson regression. RESULTS: A total of 5235 patients were included. Esophagectomy at low [odds ratio (OR) 2.17] and intermediate-volume (OR 1.62) hospitals, compared with high-volume hospitals, was associated with a significant increase in mortality. The percentage of esophagectomies performed at high-volume centers significantly increased during the study period (29.2-68.5%; p < 0.0001). The trend towards high-volume hospitals was different among the different US regions: South (7.7-54.3%), West (15.0-67.6%), Midwest (37.3-67.7%), and Northeast (55.8 86.8%) [p < 0.0001]. Overall, the mortality rate of esophagectomy dropped from 10.0 to 3.5% (p = 0.006), with non-White race, public insurance, and low household income patients also showing a significant reduction in mortality. CONCLUSIONS: A spontaneous centralization for esophageal cancer surgery occurred in the US. This process was associated with a decrease in the mortality rate, without contributing to health disparities. PMID- 29349530 TI - Photocatalytic activity of attapulgite-TiO2-Ag3PO4 ternary nanocomposite for degradation of Rhodamine B under simulated solar irradiation. AB - An excellent ternary composite photocatalyst consisting of silver orthophosphate (Ag3PO4), attapulgite (ATP), and TiO2 was synthesized, in which heterojunction was formed between dissimilar semiconductors to promote the separation of photo generated charges. The ATP/TiO2/Ag3PO4 composite was characterized by SEM, XRD, and UV-vis diffuse reflectance spectroscopy. The co-deposition of Ag3PO4 and TiO2 nanoparticles onto the surface of ATP forms a lath-particle structure. Compared with composite photocatalysts consisting of two phases, ATP/TiO2/Ag3PO4 ternary composite exhibits greatly improved photocatalytic activity for degradation of rhodamine B under simulated solar irradiation. Such ternary composite not only improves the stability of Ag3PO4, but also lowers the cost by reducing application amount of Ag3PO4, which provides guidance for the design of Ag3PO4- and Ag-based composites for photocatalytic applications. PMID- 29349531 TI - An "All-In-One" Pharmacophoric Architecture for the Discovery of Potential Broad Spectrum Anti-Flavivirus Drugs. AB - A precipitous increase in the number of flaviviral infections has been noted over the last 5 years. Despite these outbreaks, treatment protocols for infected individuals remain ambiguous. Numerous studies have identified NITD008 as a potent flavivirus inhibitor; however, clinical testing was dismissed due to undesirable toxic effects. The binding landscape of NITD008 in complex with five detrimental flaviviruses at the RNA-dependent RNA polymerase active sites was explored. An "all-in-one" pharmacophore model was created for the design of small molecules that may inhibit a broad spectrum of flaviviruses. This pharmacophore model approach serves as a robust cornerstone, thus assisting medicinal experts in the composition of multifunctional inhibitors that will eliminate cross resistance and toxicity and enhance patient adherence. PMID- 29349532 TI - A Novel Approach in Treatment of Tuberculosis by Targeting Drugs to Infected Macrophages Using Biodegradable Nanoparticles. AB - Mycobacterium tuberculosis, the causative agent of tuberculosis is now causing death of more than 10 million people. Because of the development of drug resistant TB, drug delivery to the infected site through nanoparticle had been studied for long time. Nanoparticles indicate different sorts of association with the natural particles of the body. Nanoparticles can be used as controlled or specific drug delivery system. It can be through temporal controlled or can be distribution controlled. Glucose polymer-based nanoparticles might play an important role as drug delivery system in case of targeted drug delivery in the infected site of the body or in infected macrophages, as they are biodegradable so there should not be any side effects of these particles in the body and also they show very slow immune response. CD4, Beta 1, TGFb-1, IL-2, IL-13 SEC14L1, GUSB, BPI, and CCR7 are major biomarkers secreted after infection of this bacterium by the macrophages which can be used for targeted drug delivery in infected macrophages. As these markers can be used for delivery of drugs at destined position, they can be very beneficial in reducing toxicities of antituberculer drugs to the other uninfected sites and in operating only the infected macrophages. PMID- 29349533 TI - Hendra Virus Spillover is a Bimodal System Driven by Climatic Factors. AB - Understanding environmental factors driving spatiotemporal patterns of disease can improve risk mitigation strategies. Hendra virus (HeV), discovered in Australia in 1994, spills over from bats (Pteropus sp.) to horses and thence to humans. Below latitude - 22 degrees , almost all spillover events to horses occur during winter, and above this latitude spillover is aseasonal. We generated a statistical model of environmental drivers of HeV spillover per month. The model reproduced the spatiotemporal pattern of spillover risk between 1994 and 2015. The model was generated with an ensemble of methods for presence-absence data (boosted regression trees, random forests and logistic regression). Presences were the locations of horse cases, and absences per spatial unit (2.7 * 2.7 km pixels without spillover) were sampled with the horse census of Queensland and New South Wales. The most influential factors indicate that spillover is associated with both cold-dry and wet conditions. Bimodal responses to several variables suggest spillover involves two systems: one above and one below a latitudinal area close to - 22 degrees . Northern spillovers are associated with cold-dry and wet conditions, and southern with cold-dry conditions. Biologically, these patterns could be driven by immune or behavioural changes in response to food shortage in bats and horse husbandry. Future research should look for differences in these traits between seasons in the two latitudinal regions. Based on the predicted risk patterns by latitude, we recommend enhanced preventive management for horses from March to November below latitude 22 degrees south. PMID- 29349534 TI - Psoriasis: from Pathogenesis to Targeted Therapies. AB - Over the last decade, the management of psoriasis has witnessed a paradigm shift. Thanks to the increasing knowledge about the pathogenesis of psoriasis, targeted treatments with monoclonal antibodies have been developed. These antibodies, which target the pathogenic TNF/IL-23/IL-17-pathway, were shown to be safe and efficacious in the management of most patients with moderate to severe chronic plaque psoriasis. Recently, molecular and genetic studies in pustular and erythrodermic psoriasis have identified additional inflammatory pathways, providing evidence that psoriasis is a heterogeneous disease and highlighting the requirement for personalized disease characterization for treatment optimization. In this article, we will review these advances and provide an update on the currently available treatment arsenal. We discuss the efficacy and safety profile of these individual therapeutic agents and describe their use in special indications. We will also describe the current understanding of psoriasis as a systemic disease associated with multiple comorbidities and illustrate its impact in the management of psoriatic patients. Finally, we discuss ongoing therapeutic developments as well as unmet needs and future perspectives in the field of psoriasis. PMID- 29349535 TI - Mycobacterium xenopi Genotype Associated with Clinical Phenotype in Lung Disease. AB - Mycobacterium xenopi is responsible for pulmonary disease (PD) in Europe and Canada. Despite its high prevalence and increasing clinical importance, little is known about the genetic diversity of M. xenopi. Through a prospective study for M. xenopi strain type and the relation to clinical phenotype, 39 patients with M. xenopi PD were analyzed. Our study demonstrated that sequence type (ST) 5 was dominant in Ontario among 15 distinct STs and caused PD in people even without underlying lung disease, whereas disease due to non-ST5 was found almost exclusively in patients with underlying lung disease. PMID- 29349536 TI - Oxygen Uptake Efficiency Slope and Prediction of Post-operative Morbidity and Mortality in Patients with Lung Cancer. AB - OBJECTIVE: Peak oxygen consumption is a very valuable cardiopulmonary functional parameter in pre-operative evaluation of patients with lung cancer. However, it has several critical limitations for operability decision due to failure in achieving maximal level of exercise test for cases. The aim of this study was to reveal the importance of more accurate cardiopulmonary parameters that can be calculated from data of submaximal level test, such as oxygen uptake efficiency slope (OUES) and to determine whether it could be used in the operability decision phase for borderline cases by means of morbidity and mortality. MATERIALS AND METHODS: One hundred and twenty-five patients who were scheduled to undergo lung surgery due to lung cancer were included in the study. Peak oxygen uptake (pVO2), heart rate at the anaerobic threshold, and oxygen consumption volume at anaerobic threshold values were obtained after performing the cardiopulmonary exercise test. The OUES value was calculated from the ratio of the peak VO2 value and logarithmic equivalent of the ventilatory volume (VE). The following equation was used for determining OUES: VO2/log10 VE. RESULTS: The peak VO2 mean value was 21.37 +/- 4.20 mL/min/kg in patients. However, OUES mean value was 12.44 +/- 2.11. When the metabolic parameters of the patients were compared, a significant correlation was determined between the peak VO2 value and peak VE, OUES, and survival (p < 0.01). CONCLUSION: This study demonstrated that OUES is significantly correlated with peak VO2 and it does not require the performance of maximal exercise and can be used together with peak VO2 in this patient population when there is difficulty in making decision for surgery in patients with lung cancer. PMID- 29349537 TI - Timing of Spirometry May Impact Hospital Length of Stay for Cystic Fibrosis Pulmonary Exacerbation. AB - PURPOSE: The optimal timing of spirometry during hospitalization for acute pulmonary exacerbation (PEx) in patients with cystic fibrosis (CF) is unclear. We retrospectively evaluated whether measuring spirometry earlier during hospitalization was associated with a shorter length of stay (LOS). METHODS: In this retrospective study, we analyzed data from the electronic medical record of CF patients 6 years of age and older admitted to a single center for acute PEx requiring IV antibiotic therapy between 2009 and 2016. After excluding patient encounters with missing data on covariates, random-effects linear regression was used to predict LOS as a function of days to first pulmonary function testing (PFT), which was spirometry for our study. RESULTS: One thousand thirty-five hospitalizations of 242 patients met inclusion criteria, with 801 including complete data on covariates. Mean LOS was 10 +/- 7 days, with mean time to first PFT of 4 +/- 3 days after admission. In multivariable analysis, each additional day to first PFT was associated with 0.97 days longer LOS (95% CI 0.29, 1.64; p = 0.005). CONCLUSIONS: As CF researchers and clinicians work to improve management of PEx, the timing of spirometry during hospitalization remains an important question. Obtaining objective lung function data earlier during the course of therapy may provide information which can lead to reduced hospital LOS for PEx. PMID- 29349538 TI - Capturing pair-wise epistatic effects associated with three agronomic traits in barley. AB - Genetic association mapping has been widely applied to determine genetic markers favorably associated with a trait of interest and provide information for marker assisted selection. Many association mapping studies commonly focus on main effects due to intolerable computing intensity. This study aims to select several sets of DNA markers with potential epistasis to maximize genetic variations of some key agronomic traits in barley. By doing so, we integrated a MDR (multifactor dimensionality reduction) method with a forward variable selection approach. This integrated approach was used to determine single nucleotide polymorphism pairs with epistasis effects associated with three agronomic traits: heading date, plant height, and grain yield in barley from the barley Coordinated Agricultural Project. Our results showed that four, seven, and five SNP pairs accounted for 51.06, 45.66 and 40.42% for heading date, plant height, and grain yield, respectively with epistasis being considered, while corresponding contributions to these three traits were 45.32, 31.39, 31.31%, respectively without epistasis being included. The results suggested that epistasis model was more effective than non-epistasis model in this study and can be more preferred for other applications. PMID- 29349539 TI - Effect of the application of a bundle of three measures (intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples) on the surgical site infection after elective laparoscopic colorectal cancer surgery. AB - BACKGROUND: Surgical site infection (SSI) prevention bundles include the simultaneous use of different measures, which individually have demonstrated an effect on prevention of SSI. The implementation of bundles can yield superior results to the implementation of individual measures. The aim of this study was to address the effect of the application of a bundle including intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples, on the surgical site infection after elective laparoscopic colorectal cancer surgery. METHODS: A prospective, randomized study was performed, including patients with diagnosis of colorectal neoplasms and plans to undergo an elective laparoscopic surgery. The patients were randomized into two groups: those patients following standard bundles (Group 1) and those ones following the experimental bundle with three additional measures, added to the standard bundle. Incisional and organ space SSI were investigated. The study was assessor-blinded. RESULTS: A total of 198 patients were included in the study, 99 in each group. The incisional SSI rate was 16% in Group 1 and 2% in Group 2 [p = 0.007; RR = 5.6; CI 95% (1.4-17.8)]. The organ-space SSI rate was 4% in Group 1 and 0% in Group 2 [p = 0.039; RR = 1.7; CI 95% (1.1-11.6)]. Median hospital stay was 5.5 days in Group 1 and 4 days in Group 2 (p = 0.028). CONCLUSIONS: The addition of intraperitoneal lavage with antibiotic solution, fascial closure with Triclosan-coated sutures and Mupirocin ointment application on the skin staples, to a standard bundle of SSI prevention, reduces the incisional and organ-space SSI and consequently the hospital stay, after elective laparoscopic colorectal cancer surgery (ClinicalTrials.gov Identifier: NCT03081962). PMID- 29349540 TI - Self-dilation for therapy-resistant benign esophageal strictures: towards a systematic approach. AB - BACKGROUND: Patients with therapy-resistant benign esophageal strictures (TRBES) suffer from chronic dysphagia and generally require repeated endoscopic dilations. For selected patients, esophageal self-dilation may improve patient's autonomy and reduce the number of endoscopic dilations. We evaluated the clinical course and outcomes of patients who started esophageal self-dilation at our institution. METHODS: This study was a retrospective case series of patients with TRBES who started esophageal self-dilation between 2012 and 2016 at the Academic Medical Center Amsterdam. To learn self-dilation using Savary-Gilliard bougie dilators, patients visited the outpatient clinic on a weekly basis where they were trained by a dedicated nurse. Endoscopic dilation was continued until patients were able to perform self-bougienage adequately. The primary outcome was the number of endoscopic dilation procedures before and after initiation of self dilation. Secondary outcomes were technical success, final bougie size, dysphagia scores, and adverse events. RESULTS: Seventeen patients started with esophageal self-dilation mainly because of therapy-resistant post-surgical (41%) and caustic (35%) strictures. The technical success rate of learning self-bougienage was 94% (16/17). The median number of endoscopic dilation procedures dropped from 17 [interquartile range (IQR) 11-27] procedures during a median period of 9 (IQR 6 36) months to 1.5 (IQR 0-3) procedures after the start of self-dilation (p < 0.001). The median follow-up after initiation of self-dilation was 17.6 (IQR 11.5 33.3) months. The final bougie size achieved with self-bougienage had a median diameter of 14 (IQR 13-15) mm. All patients could tolerate solid foods (Ogilvie dysphagia score <= 1), making the clinical success rate 94% (16/17). One patient (6%) developed a single episode of hematemesis related to self-bougienage. CONCLUSIONS: In this small case series, esophageal self-dilation was found to be successful 94% of patients when conducted under strict guidance. All patients performing self-bougienage achieved a stable situation where they could tolerate solid foods without the need for endoscopic dilation. PMID- 29349541 TI - Per oral endoscopic myotomy: early experience and safety of a multispecialty approach. AB - BACKGROUND: Per oral endoscopic myotomy (POEM) has gained increasing popularity for treating achalasia. A multidisciplinary approach may allow safe and early adoption of POEM into clinical practice. MATERIALS AND METHODS: We performed a retrospective review of our initial POEM cases. All procedures were performed by a team of interventional gastroenterologist and thoracic surgeon. We analyzed demographics, comorbidities, achalasia subtypes, length of hospital stay, duration of surgery, morbidity, mortality, length of myotomy, preoperative and postoperative Eckardt scores. RESULTS: Thirty-one consecutive patients underwent POEM during the 24-month period from January 2014 to December 2015. Eighteen patients (58%) had prior non-operative interventions. Average duration of follow up was 9.6 months. Seventeen patients (66.8%) had follow-up of 12 months and longer. Average preoperative Eckardt score was 6.3 (3-10), median 6. Average postoperative Eckardt score was 1.4 (0-8), median 1, in 1 month and an average 2.2, median 1, in 1 year. Patients with type III achalasia were most refractory to treatment, while patients with type II had the best results. Average LOS was 1.3 days (1-5), median 1 day. Average DOS was 106 min (60-148), median 106. Average LOM was 13 cm (10-15), with median of 13 cm. We had one 30-day mortality secondary to coronary artery disease. Four patients had prior Heller myotomies and underwent a posterior myotomy during POEM, with outcomes similar to patients with no prior myotomy. CONCLUSIONS: We demonstrated safety and efficiency of a multispecialty approach for achalasia with POEM with a low rate of complications. PMID- 29349542 TI - Laparoscopic pancreaticoduodenectomy with reconstruction of the mesentericoportal vein with the parietal peritoneum and the falciform ligament. AB - BACKGROUND: With the improvement of the surgical technique of Laparoscopic pancreaticoduodenectomy (LPD), indications will be extended to patients with vascular invasion. With LPD, vascular grafts for reconstruction are more frequently needed because adequate mobilization is not always done and vascular grafts can safely facilitate reconstruction. We describe our experience of reconstruction with the falciform ligament. METHODS: Venous reconstruction is performed after removal of the specimen. The falciform ligament is rapidly harvested within the same surgical field and for any size and used for lateral reconstruction of the mesentericoportal vein. Therapeutic anticoagulation is not needed and venous patency was assessed by postoperative CT scan. Since April 2011 and among the 93 patients who underwent LPD, four patients had this procedure. RESULTS: The mean age was 73 years old (69-77) and 3 were women. Indications for resection were pancreatic adenocarcinoma (n = 3) and IPMN in severe dysplasia (n = 1) and the mean patch size of 13 mm (10-30). The mean operative time was 397 min (330-480); vascular clamping lasted 54 min (45-60), and mean blood loss was 437 ml (150-1000) and one was transfused. Resection was R0 in patients with adenocarcinoma (n = 3). The postoperative course was uneventful in 3 patients and one patient was re-operated for bile leak and partial venous thrombosis and redo venous reconstruction was done. Complete venous patency was demonstrated in patients (n = 2) who still alive 1 year after resection. CONCLUSION: Venous resection will be more frequently done with LPD and vascular grafts more frequently needed. Compared to other available vascular grafts (autogenous, synthetic, cadaveric and bovine pericardium, etc), the parietal peritoneum had the advantages of being rapidly available, easy to harvest by the laparoscopic approach, not expensive, no need for anticoagulation and at lower risk of infection. PMID- 29349543 TI - Saving robots improves laparoscopic performance: transfer of skills from a serious game to a virtual reality simulator. AB - BACKGROUND: Residents find it hard to commit to structural laparoscopic skills training. Serious gaming has been proposed as a solution on the premise that it is effective and more motivating than traditional simulation. We establish construct validity for the laparoscopic serious game Underground by comparing laparoscopic simulator performance for a control group and an Underground training group. METHODS: A four-session laparoscopic basic skills course is part of the medical master students surgical internship at the Radboud University Medical Centre. Four cohorts, representing 107 participants, were assigned to either the Underground group or the control group. The control group trained on the FLS video trainer and the LapSim virtual reality simulator for four sessions. The Underground group played Underground for three sessions followed by a transfer session on the FLS video trainer and the LapSim. To assess the effect of engaging in serious gameplay on performance on two validated laparoscopic simulators, initial performance on the FLS video trainer and the LapSim was compared between the control group (first session) and the Underground group (fourth session). RESULTS: We chose task duration as a proxy for laparoscopic performance. The Underground group outperformed the control group on all three LapSim tasks: Camera navigation F(1) = 12.71, p < .01; Instrument navigation F(1) = 8.04, p < .01; and Coordination F(1) = 6.36, p = .01. There was no significant effect of playing Underground for performance on the FLS video trainer Peg Transfer task, F(1) = 0.28, p = .60. CONCLUSIONS: We demonstrated skills transfer between a serious game and validated laparoscopic simulator technology. Serious gaming may become a valuable, cost-effective addition to the skillslab, if transfer to the operating room can be established. Additionally, we discuss sources of transferable skills to help explain our and previous findings. PMID- 29349544 TI - Interpretation of motion analysis of laparoscopic instruments based on principal component analysis in box trainer settings. AB - BACKGROUND: Motion analysis parameters (MAPs) have been extensively validated for assessment of minimally invasive surgical skills. However, there are discrepancies on how specific MAPs, tasks, and skills match with each other, reflecting that motion analysis cannot be generalized independently of the learning outcomes of a task. Additionally, there is a lack of knowledge on the meaning of motion analysis in terms of surgical skills, making difficult the provision of meaningful, didactic feedback. In this study, new higher significance MAPs (HSMAPs) are proposed, validated, and discussed for the assessment of technical skills in box trainers, based on principal component analysis (PCA). METHODS: Motion analysis data were collected from 25 volunteers performing three box trainer tasks (peg grasping/PG, pattern cutting/PC, knot suturing/KS) using the EVA tracking system. PCA was applied on 10 MAPs for each task and hand. Principal components were trimmed to those accounting for an explained variance > 80% to define the HSMAPs. Individual contributions of MAPs to HSMAPs were obtained by loading analysis and varimax rotation. Construct validity of the new HSMAPs was carried out at two levels of experience based on number of surgeries. RESULTS: Three new HSMAPs per hand were defined for PG and PC tasks, and two per hand for KS task. PG presented validity for HSMAPs related to insecurity and economy of space. PC showed validity for HSMAPs related to cutting efficacy, peripheral unawareness, and confidence. Finally, KS presented validity for HSMAPs related with economy of space and knotting security. CONCLUSIONS: PCA-defined HSMAPs can be used for technical skills' assessment. Construct validation and expert knowledge can be combined to infer how competences are acquired in box trainer tasks. These findings can be exploited to provide residents with meaningful feedback on performance. Future works will compare the new HSMAPs with valid scoring systems such as GOALS. PMID- 29349545 TI - Risk of discontinuation of clopidogrel after 1 month following bare-metal stents: a propensity-score adjusted comparison with continued administration of clopidogrel after drug-eluting stents. AB - In patients at high risk for bleeding undergoing percutaneous coronary intervention (PCI) the use of bare-metal-stent (BMS) is considered an option that allows discontinuation of clopidogrel after 4 weeks. We sought to investigate the risk of early discontinuation of clopidogrel in patients with BMS as compared with a 6-month course of clopidogrel after DES in patients with or without high on-treatment platelet reactivity (HTPR). In 765 consecutive patients undergoing PCI after loading with clopidogrel 600 mg, HTPR was tested by optical aggregometry and defined as residual platelet reactivity > 14%. On top of aspirin 100 mg, patients received clopidogrel 75 mg for 4 weeks after BMS or 6 months after DES. The primary endpoint was all-cause mortality or myocardial infarction (MI) during 1 year. The 1-year incidence of death or MI was 3.5% with BMS (n = 484), 0.9% with DES and no HTPR (n = 211), and 7.1% with DES and HTPR (n = 70; p = 0.03). Landmark analyses for the first 6 months demonstrated that the risk of patients receiving BMS was similar as in patients receiving a DES with HTPR during this period (2.3 vs. 2.9%) but lowest in patients receiving a DES without HTPR (0.5%). The incidence of bleeding was similar in all three groups. These findings did not change after propensity score adjustment for stent type. After discontinuation of clopidogrel at 1 month, patients treated with BMS are at higher risk for death or MI than patients treated with a DES and sufficiently responding to clopidogrel planned for 6 months.ClinicalTrials.gov number NCT00457236. PMID- 29349546 TI - Understanding Who Benefits from Parenting Interventions for Children's Conduct Problems: an Integrative Data Analysis. AB - Parenting interventions are an effective strategy to reduce children's conduct problems. For some families, that is, not all families benefit equally. Individual trials tend to be underpowered and often lack variability to differentiate between families how benefit less or more. Integrating individual family level data across trials, we aimed to provide more conclusive results about often presumed key family (parental education and ethnic background) and child characteristics (problem severity, ADHD symptoms and emotional problems) as putative moderators of parenting intervention effects. We included data from 786 families (452 intervention; 334 control) from all four trials on the Incredible Years parenting intervention in The Netherlands (three randomized; one matched control). Children ranged between 2 and 10 years (M = 5.79; SD = 1.66). Of the families, 31% had a lower educational level and 29% had an ethnic minority background. Using multilevel regression, we tested whether each of the putative moderators affected intervention effects. Incredible Years reduced children's conduct problems (d = - .34). There were no differential effects by families' educational or ethnic background, or by children's level of ADHD symptoms. Children with more severe conduct problems and those with more emotional problems benefited more. Post hoc sensitivity analyses showed that for the two trials with longer-term data, moderation effects disappeared at 4 or 12 months follow-up. Often assumed moderators have some, but limited abilities to explain who benefits from parenting interventions. This suggests the need for studying theoretically more precise moderators in prevention research, other than relatively static family characteristics alone. PMID- 29349547 TI - Heterologous expression of two Aspergillus niger feruloyl esterases in Trichoderma reesei for the production of ferulic acid from wheat bran. AB - Feruloyl esterase (FAE)-encoding genes AnfaeA and AnfaeB were isolated from Aspergillus niger 0913. For overexpression of the two genes in Trichoderma reesei, constitutive and inductive expression plasmids were constructed based on parental plasmid pAg1-H3. The constructed plasmids contained AnfaeA or AnfaeB gene under the control of glyceraldehyde-3-phosphate dehydrogenase A gene (gpdA) promoter (from A. nidulans) or cellobiohydrolases I (cbh I) gene promoter (from T. reesei), and cbh I terminator from T. reesei. The target plasmids were transferred into T. reesei D-86271 (Rut-C30) by Agrobacterium tumefaciens mediated transformation (ATMT), respectively. A high level of feruloyl esterase was produced by the recombinant fungal strains under solid-state fermentation, and the cbh I promoter was more efficient than the gpdA promoter in the expression of AnfaeA. The optimum temperatures and pH values were 50 degrees C and 5.0 for AnFAEA, and 35 degrees C and 6.0 for AnFAEB. The maximum production levels were 20.69 U/gsd for AnFAEA and 15.08 U/gsd for AnFAEB. The recombinant fungal enzyme systems could release 62.9% (for AnFAEA) and 52.2% (for AnFAEB) of total ferulic acids from de-starched wheat bran, which was higher than the 46.3% releasing efficiency of A. niger 0913. The supplement of xylanase from T. longibrachiatum in the enzymatic hydrolysis led to a small increment of the ferulic acids release. PMID- 29349548 TI - An effective surfactant-assisted hydrothermal pretreatment strategy for bioethanol production from chili post-harvest residue by separate hydrolysis and fermentation. AB - Surfactants play major role in the delignification of lignocellulosic biomass. Surfactant-assisted hydrothermal pretreatment was evaluated for chili post harvest residue. Maximum reducing sugar yield of 0.445 g per g of dry biomass (g/g) was obtained when surfactant PEG 6000 was used. Compositional analysis revealed an efficient removal of lignin and hemicelluloses from the pretreated biomass. Fermentation inhibitors such as furfural, 5-hydroxymethylfurfural and organic acids were absent in the hydrolyzate. After pretreatment, the biomass can be directly hydrolyzed without any neutralization, washing and drying, and the hydrolyzate is devoid of major fermentation inhibitors. Fermentation with Saccharomyces cerevisiae yielded 1.84% of ethanol with a fermentation efficiency of 63.88%. PMID- 29349549 TI - Biodegradation of Mordant orange-1 using newly isolated strain Trichoderma harzianum RY44 and its metabolite appraisal. AB - Herein, we systematically reported the capability of T. harzianum RY44 for decolorization of Mordant orange-1. The fungi strains were isolated from the Universiti Teknologi Malaysia tropical rain forest. For initial screening, the decolorization was conducted using 50 strains of the fungi for 20 days incubation time and the best performance was selected. Then, the decolorization capability and fungal biomass were evaluated using different dye concentrations, namely, 0, 50, 75 and 100 ppm. Effects of the carbon sources (fructose, glucose, and galactose), nitrogen sources (ammonium nitrate, ammonium sulfate and yeast extract), surfactant (tween 80), aromatic compounds (benzoic acid, catechol and salicylic acid), and pH on the decolorization efficiency were examined. This study has found that the employed carbon sources, nitrogen sources, and aromatic compounds strongly enhance the decolorization efficiency. In addition, increasing the surfactant volume and pH generally decreased the decolorization efficiencies from 19.5 to 9.0% and 81.7 to 60.5%, respectively. In the mechanism philosophy, the present work has found that Mordant orange-1 were initially degraded by T. harzianum RY44 to benzoic acid and finally transformed into salicylic acid. PMID- 29349550 TI - Recombinase polymerase amplification combined with lateral flow dipstick for equipment-free detection of Salmonella in shellfish. AB - Salmonella is a major pathogen that causes acute foodborne outbreaks worldwide. Seafood, particularly shellfish, is a proven source of Salmonella spp. infection because many people prefer to eat it raw or lightly cooked. However, traditional identification methods are too time-consuming and complex to detect contamination of bacteria in the food chain in a timely manner, and few studies have aimed to identify Salmonella in shellfish early in the supply chain. We herein developed a method for rapid detection of Salmonella in shellfish based on the method of recombinase polymerase amplification (RPA) combined with lateral flow dipstick (LFD), which targets the invasion gene A (invA). The RPA-LFD was able to function at 30-45 degrees C, and at the temperature of 40 degrees C, it only took 8 min of amplification to reach the test threshold of amplicons. The established method had both a good specificity and a sensitivity of 100 fg DNA per reaction (20 uL). Regarding practical performance, RPA-LFD performed better than real-time PCR. Another advantage of RPA-LFD is that it was capable of being performed without expensive equipments. Thus, RPA-LFD has potential for further development as a detection kit for Salmonella in shellfish and other foods under field conditions. PMID- 29349551 TI - Medical Marijuana: Current Concepts, Pharmacological Actions of Cannabinoid Receptor Mediated Activation, and Societal Implications. AB - PURPOSE OF REVIEW: The purpose of the following review is to summarize the history and current policies related to marijuana use and prevalence, basic and clinical science pharmacological literature regarding efficacy, subpopulations of concern, and varying policies regarding its use at present. RECENT FINDINGS: With the increasingly widespread utilization of marijuana, there is also a growing complexity of public health policy, regulation, and necessity to further assess the medical indications and adverse long-term effects of marijuana use. Health care providers as well as the general public must be prepared to become familiar and up-to-date with medical literature, legislation, and educational material regarding medical marijuana. PMID- 29349552 TI - European Network of Trainees in Obstetrics and Gynaecology-ENTOG Exchange 2017: an experience report from Slovenia outlining the different trainee situations around Europe. AB - PURPOSE: The European Network of Trainees in Obstetrics and Gynaecology (ENTOG) is a non-profit, independent organisation that represents young trainees in obstetrics and gynaecology around Europe. At present, ENTOG has 32 member countries. The organisation was founded in 1997 and shall assure the exchange of experiences between young physicians all over Europe. The aim is to improve the quality of traineeship in all participating countries and consequently enhance the standards for women's healthcare. METHODS: This article reports about the experiences of trainees during the ENTOG Exchange 2017 in Slovenia and gives an overview of the trainee situations in different ENTOG member countries. RESULTS: The ENTOG exchange in Slovenia was a unique opportunity to get insights to the Slovenian medical system. Reflecting about their training situations, the participants found considerable differences in the training of young gynaecologists throughout Europe. CONCLUSIONS: Working on the ENTOG goal of raising the quality of training is still highly relevant. The ENTOG exchange is an excellent way to build a network among trainees and stimulate their commitment to improve women's healthcare in their home countries and beyond. PMID- 29349553 TI - Differential JNK, p38 and ERK response to renal injury in a rat model of acute pancreatitis in pregnancy. AB - OBJECTIVE: The objective of this study was to determine the mechanism of acute renal injury (ARI) in acute necrotizing pancreatitis in late pregnancy (ANPIP). METHODS: Pregnant Sprague-Dawley rats in the third trimester were used for this study, and an ANPIP model was induced by injecting 5% sodium taurocholate into the biliary pancreatic duct. The rats were randomly divided into three groups: the normal, sham-operated (SO) and acute necrotizing pancreatitis (ANP) groups. Rats were killed at 3, 6, 12 h after the operation, and blood, pancreatic and renal tissue samples were harvested. Differences were detected in the physiology, pathology and cellular and molecular responses among the different groups. RESULT: Serum amylase, lipase, urea and Cr levels were increased in rats with ANPIP. Additionally, expression of phosphorylation p38 and JNK as well as TNF alpha and NF-kappaB were increased in the renal tissues of rats with ANPIP. The expression of phosphorylation ERK was decreased in the renal tissues of rats with ANPIP. CONCLUSIONS: Mitogen-activated protein kinases may play an important role in renal injury in rat models of ANPIP. PMID- 29349554 TI - Comment on "Contemporary epidemiology and novel predictors of uterine rupture: a nationwide population-based study". PMID- 29349555 TI - Letter to the Editor: Comment on "Contemporary epidemiology and novel predictors of uterine rupture: a nationwide population-based study". PMID- 29349556 TI - Neuropathology correlates of cognitive assessments. AB - BACKGROUND: Alzheimer's disease and other dementias are the fourth largest contributors to neurological disability and the second largest contributor to deaths from neurological disease. Described in the 1980s as 'the silent epidemic' these disorders principally, though not exclusively, affect persons 80 years or older, and in developed countries, this 'old old' population continues to grow. Definitive diagnosis of the underlying cause of the neurodegenerative disease relies on neuropathological evaluation.' AIMS: Herein, we review the sampling methods, analysis and interpretation of both pathological and immunocytochemical techniques in the diagnostic assessment of neurodegenerative disease. FINDINGS: Neurodegenerative disorders are characterised by accumulation of pathologically altered protein in the human brain, and in some cases, in the peripheral tissues. Whilst it is suggested that a comprehensive review of the patient's clinical history, cognition and behaviour, together with a full clinical examination and radiological analysis, should lead to a high degree of confidence in the clinical diagnosis, the view persists that underlying pathology can only be predicted on clinical grounds especially in Alzheimer's disease, vascular brain injury and diffuse Lewy body disease with only limited accuracy. CONCLUSIONS: Neuropathological assessment of well characterised clinical cases provides accurate data on the prevalence of neurodegenerative diseases. This will aid future biomarker, neuroimaging studies and clinical trials focussed on population based cohorts. PMID- 29349557 TI - A rare ocular complication of neisseria gonorrhoeae. AB - BACKGROUND: Spontaneous formation of subconjunctival filtering blebs is rare and has been observed after penetrating ocular surgery, in association with connective tissue diseases and inflammatory conditions. METHOD: We describe here a case of a spontaneous formation of subconjunctival filtering bleb as sequelae of gonococcal conjunctivitis in an adult patient. RESULTS: Spontaneous filtering bleb is a rare complication of gonococcal conjunctivitis. In this case, the patient presented with a recent history of gonococcal conjunctivitis treated with moxifloxacin eye drops and intravenous cephalothin for a week. On the first exam, there was superior corneal thinning with surrounding conjunctival hyperemia and edema in the right eye, but after the patient lost the follow-up for 2 weeks, the corneal thinning had become a pseudopterygium. After another week, we observed a focal elevation on the superior conjunctiva that had the appearance of a bleb, although the anterior chamber remained deep. The filtering bleb was confirmed by ultrasound biomicroscopy examination (UBM). CONCLUSION: This case is relevant to the clinical practice because filtering blebs should be considered as a complication of gonococcal conjunctivitis because they pose a threat to the eye when substantial leakage occurs. PMID- 29349558 TI - SGLT2 Inhibitors and Mechanisms of Hypertension. AB - PURPOSE OF REVIEW: We sought to review currently available data on the safety and efficacy of sodium-glucose cotransporter 2 (SGLT2) inhibitors in type 2 diabetes mellitus patients with hypertension. RECENT FINDINGS: Inhibition of SGLT2 in the renal proximal tubule results in increased urinary glucose excretion and modest improvements of hemoglobin A1C. Treatment with any of the three currently FDA approved SGLT2 inhibitors (canagliflozin, dapagliflozin, empagliflozin) results in sustained systolic and diastolic blood pressure reduction, in part via minimal natriuresis and possible reductions in sympathetic tone. Recent randomized clinical trials in high cardiovascular risk patients with type 2 diabetes suggest that the unique effects of SGLT2 inhibitors on blood pressure and body weight may translate into reduced cardiovascular events and slowed kidney disease progression. However, concerns about volume depletion and acute kidney injury have been raised. SGLT2 inhibitors are viable second-line glucose-lowering agents for people with type 2 diabetes with high cardiovascular risk. PMID- 29349560 TI - Effect of fibrillatory wave amplitude on coronary blood flow as assessed by thrombolysis in myocardial infarction frame count in patients with atrial fibrillation. AB - Atrial fibrillation (AF) is the most common arrhythmia, characterized by a lack of atrial contraction and an irregular ventricular rhythm. We assessed the effect of fibrillatory wave amplitude on coronary blood flow in patients with AF using the thrombolysis in myocardial infarction (TIMI) frame count. Sixty-one patients with AF persisting for longer than 30 days were included. For controls, 61 age- and sex-matched patients with sinus rhythm were selected. Coarse AF was defined as any fibrillatory wave >= 1 mm and fine AF as any fibrillatory wave < 1 mm. Mean TIMI frame count was significantly higher in patients with AF than in those with sinus rhythm (18 +/- 4 vs 30 +/- 11, p < 0.001). Multivariate analysis showed that AF was the only determinant of mean TIMI frame count (beta = 0.48, p < 0.001). Among patients with AF, 32 had coarse AF and 29 had fine AF. Left atrial volume index (54 +/- 14 vs 64 +/- 21 ml/m2, p = 0.03) was significantly larger, and mean TIMI frame count (26 +/- 7 vs 35 +/- 12, p < 0.001) was significantly higher in patients with fine AF than in those with coarse AF. Multivariate analysis showed that hypertension (beta = - 0.29, p = 0.01) and a fine fibrillatory wave (beta = 0.33, p = 0.007) were determinants of mean TIMI frame count. Our data suggest that coronary blood flow is reduced in patients with AF compared with those with sinus rhythm, and that a fine fibrillatory wave is a major determinant of reduced coronary blood flow in patients with AF. PMID- 29349561 TI - Sphenopalatine ganglion stimulation for cluster headache, results from a large, open-label European registry. AB - BACKGROUND: Cluster headache (CH) is a disabling primary headache disorder characterized by severe periorbital pain. A subset of patients does not respond to established pharmacological therapy. This study examines outcomes of a cohort of mainly chronic CH patients treated with sphenopalatine ganglion (SPG) stimulation. METHODS: Patients were followed in an open-label prospective study for 12 months. Ninety-seven CH patients (88 chronic, 9 episodic) underwent trans oral insertion of a microstimulator targeting the SPG. Patients recorded stimulation effect prospectively for individual attacks. Frequency, use of preventive and acute medications, headache impact (HIT-6) and quality of life measures (SF-36v2) were monitored at clinic visits. Per protocol, frequency responders experienced >= 50% reduction in attack frequency and acute responders treated >= 50% of attacks. HIT-6 responders experienced an improvement >= 2.3 units and SF-36 responders >= 4 units vs. baseline. RESULTS: Eighty-five patients (78 chronic, 7 episodic) remained implanted and were evaluated for effectiveness at 12 months. In total, 68% of all patients were responders, 55% of chronic patients were frequency responders and 32% of all patients were acute responders. 67% of patients using acute treatments were able to reduce the use of these by 52% and 74% of chronic patients were able to stop, reduce or remain off all preventive medications. 59% of all patients were HIT-6 responders, 67% were SF-36 responders. CONCLUSIONS: This open-label registry corroborates that SPG stimulation is an effective therapy for CH patients providing therapeutic benefits and improvements in use of medication as well as headache impact and quality of life. PMID- 29349559 TI - A mutant HCN4 channel in a family with bradycardia, left bundle branch block, and left ventricular noncompaction. AB - We found that a female infant presenting with left bundle branch block and left ventricular noncompaction carries uninvestigated gene mutations HCN4(G811E), SCN5A(L1988R), DMD(S2384Y), and EMD(R203H). Here, we explored the possible pathogenicity of HCN4(G811E), which results in a G811E substitution in hyperpolarization-activated cyclic nucleotide-gated channel 4, the main subunit of the cardiac pacemaker channel. Voltage-clamp measurements in a heterologous expression system of HEK293T cells showed that HCN4(G811E) slightly reduced whole cell HCN4 channel conductance, whereas it did not affect the gating kinetics, unitary conductance, or cAMP-dependent modulation of voltage-dependence. Immunocytochemistry and immunoblot analysis showed that the G811E mutation did not impair the membrane trafficking of the channel subunit in the heterologous expression system. These findings indicate that HCN4(G811E) may not be a monogenic factor to cause the cardiac disorders. PMID- 29349562 TI - The influence of elevated hormone levels on physiologic accumulation of 68Ga DOTATOC. AB - OBJECTIVE: PET/CT imaging with 68Ga-1,4,7,10-tetraazacyclododecane-N,N',N",N''' tetraacetic acid-D-Phe1-Tyr3-octreotide (DOTATOC) is useful in patients with neuroendocrine tumors (NETs). Functioning NETs by definition secrete abnormal levels of hormones, causing clinical symptoms. It is known that physiologic accumulation can be seen in some organs, but it remains unknown whether elevated hormone levels can affect the physiologic accumulation pattern of 68Ga-DOTATOC. We aimed to investigate the influence of higher hormone levels on physiologic accumulation of 68Ga-DOTATOC. METHODS: A total of 167 patients with known or suspected NET lesions were enrolled in this study. The numbers of patients with elevations of ACTH, gastrin, insulin, and no elevation were 10, 25, 7, and 125, respectively. We compared the maximum standardized uptake value (SUVmax) in various organs of each group. RESULTS: In the group with elevated ACTH levels, SUVmax in the pituitary gland, the uncinate process of the pancreas and adrenal glands was lower than those in the group with no elevation (5.7 +/- 1.9 vs. 8.4 +/- 3.1, P = 0.015; 4.7 +/- 3.5 vs. 6.4 +/- 2.8, P = 0.037; 10.8 +/- 4.8 vs. 13.9 +/- 4.7, P = 0.020, respectively). There were no differences in physiologic uptake of 68Ga-DOTATOC in the thyroid gland, the pancreatic body, the liver, the spleen, the bowel, or the kidney. CONCLUSIONS: In NET patients with elevated ACTH levels, physiologic uptake of 68Ga-DOTATOC in the pituitary gland, the uncinate process of the pancreas and adrenal glands was significantly decreased. Other organs were unaffected. PMID- 29349564 TI - Retraction Note to: Factors associated with post-stroke depression and fatigue: lesion location and coping styles. AB - The Editors-in-Chief are retracting the original article because it shows significant overlap with an article previously published by the authors [1]. All authors agree to this retraction. PMID- 29349565 TI - Description of Alteromonas abrolhosensis sp. nov., isolated from sea water of Abrolhos Bank, Brazil. AB - Two Gram-negative, motile, aerobic bacteria isolated from waters of the Abrolhos Bank were classified through a whole genome-based taxonomy. Strains PEL67ET and PEL68C shared 99% 16S rRNA and dnaK sequence identity with Alteromonas marina SW 47T and Alteromonas macleodii ATCC 27126T. In silico DNA-DNA Hybridization, i.e. genome-to-genome distance (GGD), average amino acid identity (AAI) and average nucleotide identity (ANI) showed that PEL67ET and PEL68C had identity values between 33-36, 86-88 and 83-84%, and 85-86 and 83%, respectively, towards their close neighbors A. macleodii ATCC 27126T and A. marina SW-47T. The DNA G + C contents of PEL67ET and PEL68C were 44.5%. The phenotypic features that differentiate PEL67ET and PEL68C strains from their close neighbors were assimilation of galactose and activity of phosphatase, and lack of mannitol, maltose, acetate, xylose and glycerol assimilation and lack of lipase, alpha and beta-glucosidase activity. The new species Alteromonas abrolhosensis is proposed. The type strain is PEL67ET (= CBAS 610T = CAIM 1925T). PMID- 29349566 TI - Performance Improvement in Head and Neck Cancer. AB - Performance improvement requires establishing a platform to set benchmarks and monitor the quality of care provided through quality indicators and metrics. This has long been recognized as critical to overall quality improvement and more recently, has become federally mandated. Here, we review recent studies evaluating performance in head and neck cancer care, from those spanning all phases of head and neck cancer care to others focused on head and neck surgical performance, including both national and departmental/institutional efforts. PMID- 29349567 TI - HBeAg induces the expression of macrophage miR-155 to accelerate liver injury via promoting production of inflammatory cytokines. AB - Activation of Kupffer cells (KCs) induced that inflammatory cytokine production plays a central role in the pathogenesis of HBV infection. The previous studies from our and other laboratory demonstrated miRNAs can regulate TLR-inducing inflammatory responses to macrophage. However, the involvement of miRNAs in HBV associated antigen-induced macrophage activation is still not thoroughly understood. Here, we evaluated the effects and mechanisms of miR-155 in HBV associated antigen-induced macrophage activation. First, co-culture assay of HepG2 or HepG2.2.15 cells and RAW264.7 macrophages showed that HepG2.2.15 cells could significantly promote macrophages to produce inflammatory cytokines. Furthermore, we, respectively, stimulated RAW264.7 macrophages, mouse primary peritoneal macrophages, or healthy human peripheral blood monocytes with HBV associated antigens, including HBcAg, HBeAg, and HBsAg, and found that only HBeAg could steadily enhance the production of inflammatory cytokines in these cells. Subsequently, miRNAs sequencing presented the up- or down-regulated expression of multiple miRNAs in HBeAg-stimulated RAW264.7 cells. In addition, we verified the expression of miR-155 and its precursors BIC gene with q-PCR in the system of co culture or HBeAg-stimulated macrophages. Meanwhile, the increased miR-155 expression was positively correlation with serum ALT, AST, and HBeAg levels in AHB patients. Although MAPK, PI3K, and NF-kappaB signal pathways were all activated during HBeAg treatment, only PI3K and NF-kappaB pathways were involved in miR-155 expression induced by HBeAg stimulation. Consistently, miR-155 over expression inhibited production of inflammatory cytokines, which could be reversed by knocking down miR-155. Moreover, we demonstrated that miR-155 regulated HBeAg-induced cytokine production by targeting BCL-6, SHIP-1, and SOCS 1. In conclusion, our data revealed that HBeAg augments the expression of miR-155 in macrophages via PI3K and NF-kappaB signal pathway and the increased miR-155 promotes HBeAg-induced inflammatory cytokine production by inhibiting the expression of BCL-6, SHIP-1, and SOCS-1. PMID- 29349568 TI - Class III bacteriocin Helveticin-M causes sublethal damage on target cells through impairment of cell wall and membrane. AB - Helveticin-M, a novel Class III bacteriocin produced by Lactobacillus crispatus exhibited an antimicrobial activity against Staphylococcus aureus, S. saprophyticus, and Enterobacter cloacae. To understand how Helveticin-M injured target cells, Helveticin-M was cloned and heterologously expressed in Escherichia coli. Subsequently, the cell wall organization and cell membrane integrity of target cells were determined. The mechanism of cellular damage differed according to bacterial species. Based on morphology analysis, Helveticin-M disrupted the cell wall of Gram-positive bacteria and disorganized the outer membrane of Gram negative bacteria, therefore, altering surface structure. Helveticin-M also disrupted the inner membrane, as confirmed by leakage of intracellular ATP from cells and depolarization of membrane potential of target bacteria. Based on cell population analysis, Helveticin-M treatment caused the increase of cell membrane permeability, but the cytosolic enzymes were not influenced, indicating that it was the sublethal injury. Therefore, the mode of Helveticin-M action is bacteriostatic rather than bactericidal. PMID- 29349569 TI - xylA and xylB overexpression as a successful strategy for improving xylose utilization and poly-3-hydroxybutyrate production in Burkholderia sacchari. AB - Despite the versatility and many advantages of polyhydroxyalkanoates as petroleum based plastic substitutes, their higher production cost compared to petroleum based polymers has historically limited their large-scale production. One appealing approach to reducing production costs is to employ less expensive, renewable feedstocks. Xylose, for example is an abundant and inexpensive carbon source derived from hemicellulosic residues abundant in agro-industrial waste (sugarcane bagasse hemicellulosic hydrolysates). In this work, the production of poly-3-hydroxybutyrate P(3HB) from xylose was studied to develop technologies for conversion of agro-industrial waste into high-value chemicals and biopolymers. Specifically, this work elucidates the organization of the xylose assimilation operon of Burkholderia sacchari, a non-model bacterium with high capacity for P(3HB) accumulation. Overexpression of endogenous xylose isomerase and xylulokinase genes was successfully assessed, improving both specific growth rate and P(3HB) production. Compared to control strain (harboring pBBR1MCS-2), xylose utilization in the engineered strain was substantially improved with 25% increase in specific growth rate, 34% increase in P(3HB) production, and the highest P(3HB) yield from xylose reported to date for B. sacchari (YP3HB/Xil = 0.35 g/g). This study highlights that xylA and xylB overexpression is an effective strategy to improve xylose utilization and P(3HB) production in B. sacchari. PMID- 29349570 TI - Assessment of ten density functionals through the use of local hyper-softness to get insights about the catalytic activity : Iron-based organometallic compounds for ethylene polymerization as testing molecules. AB - Ten functionals were used to assess their capability to compute a local reactivity descriptor coming from the Conceptual Density Functional Theory on a group of iron-based organometallic compounds that have been synthesized by Zohuri, G.H. et al. in 2010; these compounds bear the following substituent groups: H-, O2N- and CH3O- at the para position of the pyridine ring and their catalytic activities were experimentally measured by these authors. The present work involved a theoretical analysis applied on the aforementioned iron-based compounds thus leading to suggest a new 2,6-bis(imino)pyridine catalyst based on iron(II) bearing a fluorine atom whose possible catalytic activity is suggested to be near the catalytic activity of the complex bearing a hydrogen atom as a substituent group by means of the so called local hyper-softness (LHS) thus opening a chance to estimate a possible value of catalytic activity for a new catalyst that has not been synthesized yet without simulating the entire process of ethylene polymerization. Since Conceptual DFT is not a predictive theory, but rather interpretative, an analysis of the used reactivity descriptor and its dependence upon the level of theory was carried in the present work, thus revealing that care should be taken when DFT calculations are used for these purposes. PMID- 29349571 TI - Fluoroscopy-free ultrasonography-guided percutaneous nephrolithotomy in pediatric patients: a single-center experience. AB - OBJECTIVES: To present the safety and efficacy of fluoroscopy-free ultrasound guided PCNL for the treatment of renal calculi in pediatric patients of all ages. METHODS: 30 children with mean age of 5 years (6 months-12 years) underwent totally ultrasound-guided PCNL from March 2013 to August 2016. The pyelocalyceal system was punctured in prone position using only ultrasonography guidance, and the tract was dilated using a single shot dilation technique. No fluoroscopy was used during any of the stages of renal access. The procedure was performed using adult-sized instruments. RESULTS: The mean stone size was 27.1 +/- 8.7 mm. Mean access time was 4.3 +/- 2 min. Mean nephroscopic time was 34.6 +/- 15.2 min. Mean hospital stay of patients was 3 days (range 2-5). 21 patients were stone-free after the procedure (70% success rate). Only four patients out of 30 experienced postoperative complications. CONCLUSIONS: The results of this study showed that fluoroscopic-free ultrasound-guided PCNL in pediatric patients of all ages is safe, highly efficient, and minimizes potential radiation exposure risks associated with the procedure. PMID- 29349572 TI - A prospective study evaluating indirect MRI-signs for the prediction of extraprostatic disease in patients with prostate cancer: tumor volume, tumor contact length and tumor apparent diffusion coefficient. AB - OBJECTIVE: The aim of this study was to evaluate three indirect MRI signs for predicting extraprostatic disease in patients referred to radical prostatectomy: index tumor volume (MTV), apparent diffusion coefficient (ADC) and tumor contact length (TCL). MATERIALS AND METHODS: This prospective study included 183 patients with biopsy proven prostate cancer. In all patients the MTV (ml), ADC (* 10-5 mm2/s) and TCL (mm) of the index tumor were registered at the preoperative MRI. Whole-mounted microscopical examination classified each patient as having either localized- or extraprostatic disease. The Youden index was used to identify the optimal cut-off values for predicting extraprostatic disease. Univariate regression analyses were conducted to estimate the odds ratio (OR) with 95% confidence intervals (CI). Results were stratified upon zonal location of the index tumor. RESULTS: Extraprostatic disease was identified in 103 (56%) patients. The risk of extraprostatic disease was nine times higher in peripheral zone tumors with ADC <= 89 (OR 9.1, 95% CI 4.2-19.6), five times higher in MTV >= 0.9 ml (OR 5.5, 95% CI 2.6-11.4) and five times higher in case of TCL >= 14 mm (OR 4.9, 95% CI 2.3-10.2). None of the indirect MRI signs could predict extraprostatic disease for transition zone tumors. CONCLUSION: The MTV, ADC and TCL are all significant predictors of extraprostatic disease for peripheral zone tumors, while none of the indirect signs were useful for transition zone tumors. PMID- 29349573 TI - Mesencephalic Astrocyte-Derived Neurotrophic Factor (MANF) Elevates Stimulus Evoked Release of Dopamine in Freely-Moving Rats. AB - Neurotrophic factors (NTFs) hold potential as disease-modifying therapies for neurodegenerative disorders like Parkinson's disease. Glial cell line-derived neurotrophic factor (GDNF), cerebral dopamine neurotrophic factor (CDNF), and mesencephalic astrocyte-derived neurotrophic factor (MANF) have shown neuroprotective and restorative effects on nigral dopaminergic neurons in various animal models of Parkinson's disease. To date, however, their effects on brain neurochemistry have not been compared using in vivo microdialysis. We measured extracellular concentration of dopamine and activity of dopamine neurochemistry regulating enzymes in the nigrostriatal system of rat brain. NTFs were unilaterally injected into the striatum of intact Wistar rats. Brain microdialysis experiments were performed 1 and 3 weeks later in freely-moving animals. One week after the treatment, we observed enhanced stimulus-evoked release of dopamine in the striatum of MANF-treated rats, but not in rats treated with GDNF or CDNF. MANF also increased dopamine turnover. Although GDNF did not affect the extracellular level of dopamine, we found significantly elevated tyrosine hydroxylase (TH) and catechol-O-methyltransferase (COMT) activity and decreased monoamine oxidase A (MAO-A) activity in striatal tissue samples 1 week after GDNF injection. The results show that GDNF, CDNF, and MANF have divergent effects on dopaminergic neurotransmission, as well as on dopamine synthetizing and metabolizing enzymes. Although the cellular mechanisms remain to be clarified, knowing the biological effects of exogenously administrated NTFs in intact brain is an important step towards developing novel neurotrophic treatments for degenerative brain diseases. PMID- 29349574 TI - Pacific Ciguatoxin Induces Excitotoxicity and Neurodegeneration in the Motor Cortex Via Caspase 3 Activation: Implication for Irreversible Motor Deficit. AB - Consumption of fish containing ciguatera toxins or ciguatoxins (CTXs) causes ciguatera fish poisoning (CFP). In some patients, CFP recurrence occurs even years after exposure related to CTXs accumulation. Pacific CTX-1 (P-CTX-1) is one of the most potent natural substances known that causes predominantly neurological symptoms in patients; however, the underlying pathogenies of CFP remain unknown. Using clinically relevant neurobehavioral tests and electromyography (EMG) to assess effects of P-CTX-1 during the 4 months after exposure, recurrent motor strength deficit occurred in mice exposed to P-CTX-1. We detected irreversible motor strength deficits accompanied by reduced EMG activity, demyelination, and slowing of motor nerve conduction, whereas control unexposed mice fully recovered in 1 month after peripheral nerve injury. Finally, to uncover the mechanism underlying CFP, we detected reduction of spontaneous firing rate of motor cortical neurons even 6 months after exposure and increased number of glial fibrillary acidic protein (GFAP)-immunoreactive astrocytes. Increased numbers of motor cortical neuron apoptosis were detected by dUTP digoxigenin nick end labeling assay along with activation of caspase 3. Taken together, our study demonstrates that persistence of P-CTX-1 in the nervous system induces irreversible motor deficit that correlates well with excitotoxicity and neurodegeneration detected in the motor cortical neurons. PMID- 29349575 TI - Parkin in Parkinson's Disease and Cancer: a Double-Edged Sword. AB - Parkin for more than a decade has been portrayed as a neuroprotector gene is now increasingly emerging as a multifaceted gene that can exert entirely opposite effects i.e., both cell proliferation and apoptosis. Parkinson's disease, a neurological disease, progresses due to excess in cell death, while, in case of cancer, cell death normally fails to occur. Parkin, an E3 ubiquitin ligase, was first identified as a gene implicated in autosomal recessive juvenile Parkinsonism, but several evidences indicate that Parkin is a tumor suppressor gene, involved in a variety of cancers. It is hard to imagine that two entirely different classes of disease, like cancer and Parkinson's disease, can converge at a critical point attributable to a single gene, Parkin. This mysterious and hidden connection may prove a boon in disguise and has raised hopes that studying the biology of one disease may help to identify novel targets of therapy for the other. In this Parkinson's disease-cancer story, if the detail of Parkin pathway is unraveled and gaps in the storyline are properly filled up, we may end getting an entirely new therapeutic option. This review mainly highlights the recent literature which suggests how Parkin gene regulates the various hallmarks of both the Parkinson's disease and cancer. PMID- 29349576 TI - Prep1 Deficiency Affects Olfactory Perception and Feeding Behavior by Impairing BDNF-TrkB Mediated Neurotrophic Signaling. AB - Prep1 is a homeodomain transcription factor which has an important role in hindbrain development. Prep1 expression is also kept in adult mouse brain and in particular within the olfactory bulbs. Moreover, many Prep1 neurons co-localize with Calbindin-positive periglomerular interneurons in olfactory glomerular layer. However, Prep1 function in this brain region is still unknown. In this study, we show that Prep1 hypomorphic heterozygous (Prep1i/+) mice express low levels of protein and feature a 30% reduction of olfactory bulb area, compared to WT mice. In addition, Prep1i/+ mice olfactory bulb histological analysis indicated a 20% lower cytochrome C oxidase activity within the glomerular layer, accompanied by a reduced number of periglomerular interneurons, compared to the WT littermates. Consistently, olfactory perception test highlighted that Prep1 hypomorphic heterozygous mice display a scant ability to distinguish odors, which significantly impacts on feeding behavior, as Prep1i/+ mice revealed a reduced preference for high-fat food. Analysis of BDNF signaling, which represents the main molecular mediator of olfactory plasticity, showed that Prep1i/+ mouse olfactory bulbs feature a 30% reduction of TrkB receptor levels and a decreased activation of ERK1/2. Similarly, overexpression of Prep1 in mouse neuronal cells (N2A) caused an increase of TrkB expression levels, BDNF-induced ERK phosphorylation, and cell viability, compared to control cells. We conclude that Prep1 deficiency alters olfactory morpho-functional integrity and olfaction mediated eating behavior by affecting BDNF-TrkB signaling. Prep1 could, therefore, play a crucial role in behavioral dysfunctions associated to impaired responsiveness to BDNF. PMID- 29349578 TI - In Situ Tissue Labeling of Cerebral Amyloid Using HIV-Related Tat Peptide. AB - Delivering peptide-based drugs to the brain is a major challenge because of the existence of the blood-brain barrier (BBB). To overcome this problem, cell penetrating peptides derived from proteins that are able to cross biological membranes have been used as cell-permeable and brain-penetrant compounds. An example is the transactivator of transcription protein transduction domain (Tat) of the human immunodeficiency virus. The basic domain of Tat is formed of arginine and lysine amino acid residues. Tat has been used as brain-penetrant carrier also in therapies for Alzheimer disease (AD), the most common form of dementia characterized by extracellular cerebral deposits of amyloid made up of Abeta peptide. The aim of our study was to assess whether Tat bind to amyloid deposits of AD and other amyloidoses. An in situ labeling using biotinylated Tat 48-57 peptide was employed in the brain tissue with amyloid deposits made up of Abeta (patients with AD and transgenic AD mice), of prion protein (patients with Gerstmann-Straussler-Scheinker disease), and other amyloidosis, processed by different fixations and pretreatments of histological sections. Our results showed that Tat peptide binds amyloid deposits made up of Abeta, PrP, and immunoglobulin lambda chains in the brain and other tissues processed by alcoholic fixatives but not in formalin-fixed tissue. The fact that biotinylated Tat peptide stains amyloid of different biochemical composition and the specific charge characteristics of the molecules suggests that Tat may bind to heparan sulfate glicosaminoglicans, that are present in amyloid deposits. Inhibition of the binding by Tat pre-incubation with protamine reinforces this hypothesis. Binding of Tat to amyloid deposits should be kept in mind in interpreting the results of studies employing this molecule as brain-penetrating compound for the treatment of cerebral amyloidoses. Our results also suggest that Tat may be helpful for the analysis of the mechanisms of amyloidogenesis, and in particular, the interactions between specific amyloid peptides and glicosaminoglicans. PMID- 29349577 TI - Combination Therapy with Sulfasalazine and Valproic Acid Promotes Human Glioblastoma Cell Death Through Imbalance of the Intracellular Oxidative Response. AB - Glioblastoma (GBM) is the most common and aggressive malignant primary brain tumor and still lacks effective therapeutic strategies. It has already been shown that old drugs like sulfasalazine (SAS) and valproic acid (VPA) present antitumoral activities in glioma cell lines. SAS has also been associated with a decrease of intracellular glutathione (GSH) levels through a potent inhibition of xc- glutamate/cystine exchanger leading to an antioxidant deprotection. In the same way, VPA was recently identified as a histone deacetylase (HDAT) inhibitor capable of activating tumor suppression genes. As both drugs are widely used in clinical practice and their profile of adverse effects is well known, the aim of our study was to investigate the effects of the combined treatment with SAS and VPA in GBM cell lines. We observed that both drugs were able to reduce cell viability in a dose-dependent manner and the combined treatment potentiated these effects. Combined treatment also increased cell death and inhibited proliferation of GBM cells, while having no effect on human and rat cultured astrocytes. Also, we observed high protein expression of the catalytic subunit of xc- in all the examined GBM cell lines, and treatment with SAS blocked its activity and decreased intracellular GSH levels. Noteworthy, SAS but not VPA was also able to reduce the [14C]-ascorbate uptake. Together, these data indicate that SAS and VPA exhibit a substantial effect on GBM cell's death related to an intracellular oxidative response imbalance, making this combination of drugs a promising therapeutic strategy. PMID- 29349579 TI - Malaria infectivity of xanthurenic acid-deficient anopheline mosquitoes produced by TALEN-mediated targeted mutagenesis. AB - Anopheline mosquitoes are major vectors of malaria parasites. When the gametocytes of the malaria parasite are transferred from a vertebrate to mosquitoes, they differentiate into gametes, and are fertilized in the midguts of mosquitoes. Xanthurenic acid (XA), a waste product of the ommochrome synthesis pathway, has been shown to induce exflagellation during microgametogenesis in vitro; however, it currently remains unclear whether endogenous XA affects the infectivity of anopheline mosquitoes to malaria parasites in vivo due to the lack of appropriate experimental systems such as a XA-deficient line. In the present study, we produced a XA-deficient line in Anopheles stephensi using transcription activator-like effector nuclease (TALEN)-mediated gene targeting (knockout) of the kynurenine 3-monooxygenase (kmo) gene, which encodes an enzyme that participates in the ommochrome synthesis pathway. The knockout of kmo resulted in the absence of XA, and oocyst formation was inhibited in the midguts of these XA deficient mosquitoes, which, in turn, reduced sporozoite numbers in their salivary glands. These results suggest that endogenous XA stimulates exflagellation, and enhances the infectivity of anopheline mosquitoes to malaria parasites in vivo. The XA-deficient line of the anopheline mosquito provides a useful system for analyzing and understanding the associated factors of malaria gametogenesis in the mosquito midgut. PMID- 29349580 TI - Perianesthetic Management of Laparoscopic Kidney Surgery. AB - PURPOSE OF REVIEW: Laparoscopic kidney surgery is commonly used for living donor, partial, and total tumor nephrectomy. The successful emergence of laparoscopic technique was justified by the many benefits offered such as reduced blood loss, tissue trauma, pain, and hospital stay. However, this comes at the expense of physiologic changes and complications secondary to pneumoperitoneum, surgical technique, and patient positioning with significant challenges in anesthetic management. RECENT FINDINGS: A variety of laparoscopic approaches (transperitoneal, retroperitoneal, hand-assisted, robotic) are used with some having advantages over others. The kidneys are particularly sensitive to hemodynamic changes and pneumoperitoneum. Controversies in perioperative fluid administration exist. New modalities for postoperative pain control have been suggested. Laparoscopic kidney surgery is associated with multiple physiologic changes and adverse events but offers advantages of reduced postoperative pain, faster recovery, and shorter hospital stay. Understanding these physiologic changes and related anesthetic considerations is key for safe patient outcome. PMID- 29349581 TI - Quantitative assessment of thyroid gland elasticity with shear-wave elastography in pediatric patients with Hashimoto's thyroiditis. AB - OBJECTIVE: Hashimoto's thyroiditis is the most common autoimmune thyroid disorder in the pediatric age range. Measurement of thyroid gland size is an essential component in evaluation and follow-up of thyroid pathologies. Along with size, tissue elasticity is becoming a more commonly used parameter in evaluation of parenchyma in inflammatory diseases. The aim of the current study was to assess thyroid parenchyma elasticity by shear-wave elastography in pediatric patients with Hashimoto's thyroiditis; and compare the elasticity values to a normal control group. MATERIALS AND METHODS: In this study; thyroid glands of 59 patients with a diagnosis of Hashimoto's thyroiditis based on ultrasonographic and biochemical features, and 26 healthy volunteers without autoimmune thyroid disease and thyroid function disorders, were evaluated with shear-wave elastography. Patients with Hashimoto thyroiditis were further subdivided into three categories based on gray-scale ultrasonography findings as focal thyroiditis (grade 1), diffuse thyroiditis (grade 2), and fibrotic thyroid gland (grade 3). RESULTS: Patients with Hashimoto's thyroiditis (n = 59) had significantly higher elasticity values (14. 9 kPa; IQR 12.9-17.8 kPa) than control subjects (10.6 kPa; IQR 9.0-11.3 kPa) (p < 0.001). Of the 59 patients with Hashimoto's thyroiditis, 23 patients had focal thyroiditis involving less than 50% of the gland categorized as grade 1, 24 patients had diffuse involvement of the thyroid gland categorized as grade 2, and 12 patients had marked hyperechoic septations and pseudonodular appearance categorized as grade 3 on gray-scale ultrasound. Based on elastography, grade 3 patients had significantly higher elasticity values (19.7 kPa; IQR 17.8-21.5 kPa) than patients with grade 2 (15.5 kPa; IQR 14.5-17.8 kPa) and grade 1 thyroiditis (12.8 kPa; IQR 11.9-13.1 kPa) (p < 0.05). Patients with grade 2 thyroiditis had significantly higher elasticity values than those with grade 1 thyroiditis (p < 0.05). CONCLUSION: Gray-scale ultrasound findings of heterogeneous echotexture and hypoechoic echogenicity reflect a longer duration of inflammation and may not be found in the initial stages of thyroiditis. Our results indicate that shear-wave elastography could be used to evaluate the degree of fibrosis in Hashimoto's thyroiditis. PMID- 29349582 TI - Can we evaluate the levator ani after Kegel exercise in women with pelvic organ prolapse by transperineal elastography? A preliminary study. AB - OBJECTIVES: The aim of this study was to evaluate the stiffness variation of the levator ani in patients with stage I/II pelvic organ prolapse (POP) before and after Kegel exercises by transperineal elastography. METHODS: A total of 20 patients who were diagnosed with staged I/II POP underwent conventional transperineal ultrasound and elastography. For each patient, the levator ani was located and evaluated in the state of Valsalva. After Kegel exercises for 12 weeks, transperineal ultrasound and elastography were repeated. The elasticity images were assessed using a four-point scale scoring system. RESULTS: Of the 20 cases, four had an elastography score of 1, 14 had a score of 2, two had a score of 3, and no cases had a score of 4 in the levator ani before Kegel exercises. After Kegel exercises, one had an elastography score of 1, two had a score of 2, 15 had a score of 3, and two cases had a score of 4. The mean elastography score was statistically significantly higher for the levator ani after Kegel exercises (2.90 +/- 0.48) than for the baseline score (1.90 +/- 0.29) (p = 0.025). CONCLUSIONS: Transperineal elastography was an effective and useful tool in the evaluation of the levator ani in patients with POP-Q stage I/II before and after Kegel exercises. PMID- 29349583 TI - Enhanced production of phenolic acids in cell suspension culture of Salvia leriifolia Benth. using growth regulators and sucrose. AB - Salvia leriifolia Benth. (Lamiaceae) is an endangered medicinal plant with hypoglycemic, anti-inflammatory and analgesic properties. Many of the beneficial effects of Salvia spp. are attributed to the phenolic compounds. In the present study, an efficient procedure has been developed for establishment of cell suspension culture of S. leriifolia as a strategy to obtain an in vitro phenolic acids producing cell line for the first time. The effect of growth regulators and various concentrations of sucrose have been analyzed, to optimize biomass growth and phenolic acids production. The callus used for this purpose was obtained from leaves of 15-day-old in vitro seedlings, on Murashige and Skoog (MS) basal medium supplemented with different hormone balances including benzylaminopurine (BAP) and indole butyric acid (IBA); 2,4-dichlorophenoxyacetic acid (2,4-D) and kinetin (KIN); naphthaleneacetic acid (NAA) and BAP. Modified MS medium supplemented with 5 mg/L BAP and 5 mg/L NAA was the optimal condition for callus formation with the highest induction rate (100%), the best callus growth and the highest phenolic acids content. No callus induction was observed in combinations of IBA and BAP. Cell suspension cultures were established by transferring 0.5 g of callus to 30 mL liquid MS medium supplemented with 5 mg/L BAP and 5 mg/L NAA. Dynamics of phenolic acids production has been investigated during the growth cycle of the suspension cultures. The maximum content of caffeic acid and salvianolic acid B were observed on the 15th day of the cultivation cycle while the highest amount of rosmarinic acid was observed on the first day. In response to various sucrose concentrations, cell cultures with 40 g/L sucrose not only produced the highest dry biomass but also the highest induction of caffeic acid and salvianolic acid B. The highest amount of rosmarinic acid was observed in media containing 50 g/L sucrose. These prepared cell suspension cultures provided a useful system for further enhanced production of phenolic acids at a large scale. PMID- 29349584 TI - [Percutaneous endoscopic gastrostomy in geriatrics : Indications, technique and complications]. AB - The technique of percutaneous endoscopic gastrostomy (PEG) was introduced in 1979 as a semi-invasive approach for children with the need for a gastric fistula in order to avoid an operative intervention. The suture pull-through method was rapidly established and is now omnipresent. Because scientific evidence is broadly missing, there is some uncertainty about the indications in geriatric medicine. Guidelines do not recommend the insertion of a PEG in patients with severe dementia and malnutrition. Tube feeding is mainly recommended as a temporary method for patients who cannot take oral nutrition for more than 3 days or for whom the energy intake for more than 10 days presumably covers less than 50% of their needs, assuming that the overall prognosis is reasonable. Insertion of a PEG is only recommended if artificial nutrition is expected to be necessary for more than 3-4 weeks or if a nasogastric tube is not tolerated. PMID- 29349585 TI - Molecularly Imprinted Core-Shell CdSe@SiO2/CDs as a Ratiometric Fluorescent Probe for 4-Nitrophenol Sensing. AB - 4-Nitrophenol (4-NP) is a priority pollutant in water and is both carcinogenic and genotoxic to humans and wildlife even at very low concentrations. Thus, we herein fabricated a novel molecularly imprinted core-shell nanohybrid as a ratiometric fluorescent sensor for the highly sensitive and selective detection of 4-NP. This sensor was functioned by the transfer of fluorescence resonance energy between photoluminescent carbon dots (CDs) and 4-NP. This sensor was synthesized by linking organosilane-functionalized CDs to silica-coated CdSe quantum dots (CdSe@SiO2) via Si-O bonds. The nanohybrids were further modified by anchoring a molecularly imprinted polymer (MIP) layer on the ratiometric fluorescent sensor through a facile sol-gel polymerization method. The morphology, chemical structure, and optical properties of the resulting molecularly imprinted dual-emission fluorescent probe were characterized by transmission electron microscopy and spectroscopic analysis. The probe was then applied in the detection of 4-NP and exhibited good linearity between 0.051 and 13.7 MUg/mL, in addition to a low detection limit of 0.026 MUg/mL. Furthermore, the simplicity, reliability, high selectivity, and high sensitivity of the developed sensor demonstrate that the combination of MIPs and ratiometric fluorescence allows the preparation of excellent fluorescent sensors for the detection of trace or ultra-trace analytes. PMID- 29349586 TI - Cancer incidence among children and young adults who have undergone x-ray guided cardiac catheterization procedures. AB - Children and young adults with heart disease appear to be at increased risk of developing cancer, although the reasons for this are unclear. A cohort of 11,270 individuals, who underwent cardiac catheterizations while aged <= 22 years in the UK, was established from hospital records. Radiation doses from cardiac catheterizations and CT scans were estimated. The cohort was matched with the NHS Central Register and NHS Transplant Registry to determine cancer incidence and transplantation status. Standardized incidence ratios (SIR) with associated confidence intervals (CI) were calculated. The excess relative risk (ERR) of lymphohaematopoietic neoplasia was also calculated using Poisson regression. The SIR was raised for all malignancies (2.32, 95% CI 1.65, 3.17), lymphoma (8.34, 95% CI 5.22, 12.61) and leukaemia (2.11, 95% CI 0.82, 4.42). After censoring transplant recipients, post-transplant, the SIR was reduced to 0.90 (95% CI 0.49, 1.49) for all malignancies. All lymphomas developed post-transplant. The SIR for all malignancies developing 5 years from the first cardiac catheterization (2 years for leukaemia/lymphoma) remained raised (3.01, 95% CI 2.09, 4.19) but was again reduced after censoring transplant recipients (0.98, 95% CI 0.48, 1.77). The ERR per mGy bone marrow dose for lymphohaematopoietic neoplasia was reduced from 0.541 (95% CI 0.104, 1.807) to 0.018 (95% CI - 0.002, 0.096) where transplantation status was accounted for as a time-dependent background risk factor. In conclusion, transplantation appears to be a large contributor to elevated cancer rates in this patient group. This is likely to be mainly due to associated immunosuppression, however, radiation exposure may also be a contributing factor. PMID- 29349587 TI - The Danish Medical Birth Register. AB - The Danish Medical Birth Register was established in 1973. It is a key component of the Danish health information system. The register enables monitoring of the health of pregnant women and their offspring, it provides data for quality assessment of the perinatal care in Denmark, and it is used extensively for research. The register underwent major changes in construction and content in 1997, and new variables have been added during the last 20 years. The aim was to provide an updated description of the register focusing on structure, content, and coverage since 1997. The register includes data on all births in Denmark and comprises primarily of data from the Danish National Patient Registry supplemented with forms on home deliveries and stillbirths. It contains information on maternal age provided by the Civil Registration System. Information on pre-pregnancy body mass index and smoking in first trimester is collected in early pregnancy (first antenatal visit). The individual-level data can be linked to other Danish health registers such as the National Patient Registry and the Danish National Prescription Registry. The register informs several other registers/databases such as the Danish Twin Registry and the Danish Fetal Medicine Database. Aggregated data can be publicly accessed on the Danish Health Data Authority web page ( www.esundhed.dk/sundhedsregistre/MFR ). Researchers can obtain access to individual-level pseudo-anonymised data via servers at Statistics Denmark and the Danish Health Data Authority. PMID- 29349588 TI - Amphiregulin enhances cardiac fibrosis and aggravates cardiac dysfunction in mice with experimental myocardial infarction partly through activating EGFR-dependent pathway. AB - Cardiac fibrosis (CF), a main process of ventricular remodeling after myocardial infarction (MI), plays a crucial role in the pathogenesis of heart failure (HF) post-MI. It is known that amphiregulin (AR) is involved in fibrosis of several organs. However, the expression of AR and its role post-MI are yet to be determined. This study aimed to investigate the impact of AR on CF post-MI and related mechanisms. Significantly upregulated AR expression was evidenced in the infarct border zone of MI mice in vivo and the AR secretion was enhanced in macrophages, but not in cardiac fibroblasts. In vitro, treatment with AR increased cardiac fibroblast migration, proliferation and collagen synthesis, and upregulated the expression of epidermal growth factor receptor (EGFR) and the downstream genes such as Akt, ERK1/2 and Samd2/3 on cardiac fibroblasts. All these effects could be abrogated by pretreatment with a specific EGFR inhibitor. To verify the functions of AR in MI hearts, lentivirus-AR-shRNA and negative control vectors were delivered into the infarct border zone. After 28 days, knock down of AR increased the survival rate and improved cardiac function, while decreasing the extent of myocardial fibrosis of MI mice. Moreover, EGFR and the downstream genes were significantly downregulated in lentivirus-AR-shRNA treated MI mice. Our results thus indicate that AR plays an important role in promoting CF after MI partly though activating the EGFR pathway. Targeting AR might be a novel therapeutic option for attenuating CF and improve cardiac function after MI. PMID- 29349589 TI - Associations Between Father Temperament, Character, Rearing, Psychopathology and Child Temperament in Children Aged 3-6 Years. AB - Temperament refers to the totality of individual characteristics present from birth that determine a child's unique style of behavior. Maternal personality and attitudes, one of the factors affecting temperament traits in children, is a frequently investigated subject. However, paternal variables have remained insufficiently studied. The purpose of this study is to investigate the associations between the fathers' temperament, character, attitudes, psychopathology and temperament of the 3-6 years-old children. The parents of 36 60 months-old children in the preschool settings in Samsun were included in the study (n:200). Their mothers completed "Maternal Sociodemographic Form" prepared by the researcher, and the temperament of children "Children Behaviour Questionnare" were scored by the mothers. Their fathers completed "Paternal Sociodemographic Form", and to assess father psychopathology "Brief Symptom Inventory", to determine father temperament and character "Temperament and Character Inventory" and to determine attitudes "Parenting Attitudes Scale" were scored by the fathers. In this study, we found several significant associations between children's temperament and fathers temperament and character, attitudes styles and psychopathology. The scores of paternal harm avoidance increase and self directedness decrease were found to be significantly positivily correlated with negative temperamental charecteristics of the children. The democratic attitudes of fathers were significantly correlated with positive temperamental scores of the children. All domains of paternal psychopathology were found to be in significant association with negative temperamental characteristics of the children. Our findings showed the complex interplay between determinants of parenting. Specifically, this study is one of the first to investigate paternal personality, psychopathology and attitudes, alone and in interaction with preschool child temperament. PMID- 29349590 TI - Law as Clinical Evidence: A New ConstitutiveModel of Medical Education and Decision-Making. AB - Over several decades, ethics and law have been applied to medical education and practice in a way that reflects the continuation during the twentieth century of the strong distinction between facts and values. We explain the development of applied ethics and applied medical law and report selected results that reflect this applied model from an empirical project examining doctors' decisions on withdrawing/withholding treatment from patients who lack decision-making capacity. The model is critiqued, and an alternative "constitutive" model is supported on the basis that medicine, medical law, and medical ethics exemplify the inevitable entanglement of facts and values. The model requires that ethics and law be taught across the medical education curriculum and integrated with the basic and clinical sciences and that they be perceived as an integral component of medical evidence and practice. Law, in particular, would rank as equal in normative authority to the relevant clinical scientific "facts" of the case, with graduating doctors having as strong a basic command of each category as the other. The normalization of legal knowledge as part of the clinician's evidence base to be utilized in practice may provide adequate consolation for clinicians who may initially resent further perceived incursions on their traditional independence and discretion. PMID- 29349591 TI - Radical resection of a giant retroperitoneal calcifying fibrous tumor combined with right hepatectomy and reconstruction of the inferior vena cava and bilateral renal veins. AB - BACKGROUND: We report a case of a giant retroperitoneal calcifying fibrous tumor (CFT) treated by radical tumor resection combined with right hepatectomy and reconstruction of the inferior vena cava (IVC) and bilateral renal veins. Only three case reports of CFT arising in the retroperitoneum have been reported until today. CASE PRESENTATION: In a 19-year-old female patient, computed tomography (CT) images showed a well-demarcated expansile lesion around the IVC accompanied by focal calcification, whereas the IVC that was circumferentially surrounded by the lesion was dilated due to the desmoplastic reaction. On magnetic resonance imaging (MRI), the lesion demonstrated heterogeneous hypointensity on T2-weighted images. Delayed enhancement was observed on dynamic contrast-enhanced CT and MRI. 18F-Fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT images showed increased FDG uptake [maximum standardized uptake values (SUVmax), early image 7.28; delayed image 7.40]. On operative examination, because the tumor adhered to the liver parenchyma, the right Glisson capsule, and the origin of bilateral renal veins, radical tumor resection combined with right hepatectomy and reconstruction of the IVC and bilateral renal veins was performed. CONCLUSIONS: Radical tumor resection was successfully and appropriately performed for a young patient with a giant retroperitoneal CFT with a view to achieving complete venous reconstruction and safe surgical margins for a potentially malignant tumor. PMID- 29349592 TI - Overview of Current and Future Adjuvant Therapy for High-Risk Localized Renal Cell Carcinoma. AB - OPINION STATEMENT: High-risk localized renal cell carcinoma represents a therapeutic challenge with high recurrence rates and poor survival with nephrectomy alone. Multiple agents targeting angiogenic and immunologic pathways have demonstrated remarkable efficacy in the metastatic setting but have failed to replicate similar successes in localized disease. Study results with adjuvant anti-angiogenic therapies may have been compromised by the high incidence of treatment discontinuations or dosage reductions secondary to intolerable side effects. Improving patient selection could play a major role in improving outcomes. Multiple models exist to predict survival but require improved accuracy in identifying recurrence to justify exposing patients to therapies that could significantly impair quality of life. Further understanding of pathological and molecular mechanisms of recurrence is required. Novel tools like gene recurrence scores are emerging to improve prognostication for patient selection. Immunotherapeutic approaches using check point inhibition have the potential to achieve sustained remissions with a significantly improved toxicity profile. Amplifying the immune response with a combination of neoadjuvant and adjuvant therapy to exploit the larger antigenic burden prior to nephrectomy has the biologic potential for making significant improvements in efficacy. PMID- 29349593 TI - BodiMojo: Efficacy of a Mobile-Based Intervention in Improving Body Image and Self-Compassion among Adolescents. AB - Mobile interventions promoting positive body image are lacking. This study presents a randomized controlled evaluation of BodiMojo, a mobile application (app) intervention grounded in self-compassion to promote positive body image. A sample of 274 adolescents, mean (SD) age = 18.36 (1.34) years, 74% female, were allocated to a control group or used BodiMojo for 6 weeks. Appearance esteem, body image flexibility, appearance comparison, mood, and self-compassion were assessed at baseline, 6, and 12 weeks. Significant time by group interactions emerged for appearance esteem and self-compassion, with appearance esteem and self-compassion increasing in the intervention relative to the control group. These findings provide preliminary support for BodiMojo, a cost-effective mobile app for positive body image. PMID- 29349594 TI - Pacifists and Revenge-Seekers in Response to Unambiguous Peer Provocation. AB - In order to better understand why some children retaliate when they feel provoked and others do not, the present study identified "pacifistically-oriented" children who made negative interpretations in response to unambiguous provocations, yet did not endorse revenge goals, and compared them to "revenge seeking" children who also made negative interpretations but did endorse revenge goals. Groups were identified based on seventh graders' (N = 367; 54.77% male; 22.89% racial/ethnic minority) responses to hypothetical situations in which a peer excluded and insulted them. Comparing these groups revealed that Pacifists endorsed relationship-maintaining goals and emotion regulation goals more highly than Revenge-Seekers. Revenge-Seekers reported more anger and endorsed beliefs about negative reciprocity and aggression being legitimate more highly than Pacifists. Additionally, Revenge-Seekers were more disrespect sensitive than were Pacifists, based on a measure of vigilance for signs of disrespect and expectations that others would disrespect them. Together these findings point to social-cognitive and emotion-related processes that may inhibit revenge-seeking in unambiguous provocation situations, even when children interpret the peer's behavior quite negatively. PMID- 29349595 TI - The Development of a Nano-based Approach to Alleviate Cisplatin-Induced Ototoxicity. AB - Cisplatin-induced hearing loss is experienced by a high percentage of patients with squamous cell carcinoma undergoing cisplatin chemotherapy. A novel nano construct capable of sequestering extracellular cisplatin was developed to combat this problem. The nano-construct consisted of superparamagnetic iron oxide nanoparticles (SPIONs) entrapped within polymeric micelles, which were formed from a glutathione diethyl ester-conjugated amphiphilic diblock copolymer. The glutathione-micelles were analyzed at the cellular level and in an organotypic study for safety evaluation. All utilized methods indicated that the micelles do not cause cellular toxicity or organ damage. The micelles' ability to reduce cisplatin-induced cytotoxicity was then probed in an in vitro model. Cisplatin was pre-treated with the novel nano-construct before being added to growing cells. When compared to cells that were exposed to untreated cisplatin, cells in the pre-treated cisplatin group showed a significant increase in cell viability. This clearly demonstrates that the construct is able to protect the cells from cisplatin cytotoxicity and makes it highly likely that the novel nano-construct will be able to play a role in the protection of the inner ear from cisplatin induced ototoxicity. PMID- 29349596 TI - Concomitant Use of Antiplatelets and Anticoagulants in Patients with Coronary Heart Disease and Atrial Fibrillation: What Do Recent Clinical Trials Teach Us? AB - PURPOSE OF REVIEW: Coronary heart disease (CHD) and atrial fibrillation (AF) are among the most common cardiovascular diseases. A significant proportion of patients have both CHD and AF and are at increased risk for thrombotic complications. Current therapy for CHD and AF includes antiplatelet and anticoagulant medications, respectively. Patients with concurrent CHD and AF may be prescribed dual antiplatelet therapy (DAPT) in addition to anticoagulation, which increases their bleeding risk. Controversy remains on how to balance risks and benefits in patients with CHD and AF in which multiple antithrombotic therapies may be indicated. RECENT FINDINGS: We review clinical trials and current guidelines for antiplatelet and anticoagulant therapy in CHD and AF. Aspirin and P2Y12 inhibitors are the mainstay of antiplatelet therapy. Vitamin K antagonists (VKAs) are the most commonly used anticoagulant, although the use of non-VKA oral anticoagulants (NOACs) in patients with AF is increasing. Recent studies provide guidance on how to address antithrombotic therapies in patients with concomitant CHD and AF. To date, we have evidence that in patients with AF who undergo percutaneous coronary intervention (PCI), clopidogrel with VKA may be used safely without aspirin. Also, low-dose rivaroxaban in combination with either clopidogrel only or DAPT is as effective as the traditional regimen of triple therapy with VKA and DAPT with lower bleeding risk. Dabigatran with a P2Y12 inhibitor was also found to be safe with less bleeding compared to triple therapy with VKA and DAPT. Use of a single antiplatelet agent with anticoagulation has become a viable choice in patients with CHD and AF, but more clinical trial data is needed to confirm therapy and duration regimens. PMID- 29349597 TI - Drug repurposing screening identifies bortezomib and panobinostat as drugs targeting cancer associated fibroblasts (CAFs) by synergistic induction of apoptosis. AB - Cancer associated fibroblasts (CAFs) are the most abundant components of cancer microenvironment. They play important roles in cancer initiation, progression, and metastasis. In addition, CAFs can confer drug-resistance to cancer cells. Considering their pro-tumorigenic roles, it is recommended to remove CAFs to prevent cancer recurrence after chemotherapy. Despite their clinical significance, few anti-CAF drugs have been developed. The objective of this study was to find a drug that could suppress the viability of patient-derived CAFs through repurposed screening of 51 drugs that were in clinical trials or received FDA approval. As a result, bortezomib (BTZ), carfilzomib (CFZ), and panobinostat (PST) were identified as anti-CAF drug candidates. It was confirmed that BTZ and PST could decrease the viability of various patients derived CAFs through inducing of caspase-3 mediated apoptosis. Interestingly, combination therapy with BTZ and PST showed better efficacy of inhibiting CAFs than single treatment. The synergistic effect between BTZ and PST on viability of CAFs was observed both in vitro CAF culture and in vivo mouse model. Furthermore, combination therapy with BTZ/PST and conventional anticancer compound docetaxel strongly inhibited tumor growth in xenografts of mouse breast cancer cells with mouse CAFs. In conclusion, our present study revealed that BTZ and PST could significantly reduce the viability of CAFs. Therefore, a combination therapy with BTZ/PST and anticancer drugs might be considered as a new rational for the development of anticancer therapy. PMID- 29349599 TI - Evolution of Eukaryal and Archaeal Pseudouridine Synthase Pus10. AB - In archaea, pseudouridine (Psi) synthase Pus10 modifies uridine (U) to Psi at positions 54 and 55 of tRNA. In contrast, Pus10 is not found in bacteria, where modifications at those two positions are carried out by TrmA (U54 to m5U54) and TruB (U55 to Psi55). Many eukaryotes have an apparent redundancy; their genomes contain orthologs of archaeal Pus10 and bacterial TrmA and TruB. Although eukaryal Pus10 genes share a conserved catalytic domain with archaeal Pus10 genes, their biological roles are not clear for the two reasons. First, experimental evidence suggests that human Pus10 participates in apoptosis induced by the tumor necrosis factor-related apoptosis-inducing ligand. Whether the function of human Pus10 is in place or in addition to of Psi synthesis in tRNA is unknown. Second, Pus10 is found in earlier evolutionary branches of fungi (such as chytrid Batrachochytrium) but is absent in all dikaryon fungi surveyed (Ascomycetes and Basidiomycetes). We did a comprehensive analysis of sequenced genomes and found that orthologs of Pus10, TrmA, and TruB were present in all the animals, plants, and protozoa surveyed. This indicates that the common eukaryotic ancestor possesses all the three genes. Next, we examined 116 archaeal and eukaryotic Pus10 protein sequences to find that Pus10 existed as a single copy gene in all the surveyed genomes despite ancestral whole genome duplications had occurred. This indicates a possible deleterious gene dosage effect. Our results suggest that functional redundancy result in gene loss or neofunctionalization in different evolutionary lineages. PMID- 29349600 TI - Beneficial Mutations from Evolution Experiments Increase Rates of Growth and Fermentation. AB - A major goal of evolutionary biology is to understand how beneficial mutations translate into increased fitness. Here, we study beneficial mutations that arise in experimental populations of yeast evolved in glucose-rich media. We find that fitness increases are caused by enhanced maximum growth rate (R) that come at the cost of reduced yield (K). We show that for some of these mutants, high R coincides with higher rates of ethanol secretion, suggesting that higher growth rates are due to an increased preference to utilize glucose through the fermentation pathway, instead of respiration. We examine the performance of mutants across gradients of glucose and nitrogen concentrations and show that the preference for fermentation over respiration is influenced by the availability of glucose and nitrogen. Overall, our data show that selection for high growth rates can lead to an enhanced Crabtree phenotype by the way of beneficial mutations that permit aerobic fermentation at a greater range of glucose concentrations. PMID- 29349598 TI - Phase Ib study evaluating safety and clinical activity of the anti-HER3 antibody lumretuzumab combined with the anti-HER2 antibody pertuzumab and paclitaxel in HER3-positive, HER2-low metastatic breast cancer. AB - : Purpose To investigate the safety and clinical activity of comprehensive human epidermal growth factor receptor (HER) family receptor inhibition using lumretuzumab (anti-HER3) and pertuzumab (anti-HER2) in combination with paclitaxel in patients with metastatic breast cancer (MBC). Methods This phase Ib study enrolled 35 MBC patients (first line or higher) with HER3-positive and HER2 low (immunohistochemistry 1+ to 2+ and in-situ hybridization negative) tumors. Patients received lumretuzumab (1000 mg in Cohort 1; 500 mg in Cohorts 2 and 3) plus pertuzumab (840 mg loading dose [LD] followed by 420 mg in Cohorts 1 and 2; 420 mg without LD in Cohort 3) every 3 weeks, plus paclitaxel (80 mg/m2 weekly in all cohorts). Patients in Cohort 3 received prophylactic loperamide treatment. Results Diarrhea grade 3 was a dose-limiting toxicity of Cohort 1 defining the maximum tolerated dose of lumretuzumab when given in combination with pertuzumab and paclitaxel at 500 mg every three weeks. Grade 3 diarrhea decreased from 50% (Cohort 2) to 30.8% (Cohort 3) with prophylactic loperamide administration and omission of the pertuzumab LD, nonetheless, all patients still experienced diarrhea. In first-line MBC patients, the objective response rate in Cohorts 2 and 3 was 55% and 38.5%, respectively. No relationship between HER2 and HER3 expression or somatic mutations and clinical response was observed. Conclusions Combination treatment with lumretuzumab, pertuzumab and paclitaxel was associated with a high incidence of diarrhea. Despite the efforts to alter dosing, the therapeutic window remained too narrow to warrant further clinical development. TRIAL REGISTRATION: on ClinicalTrials.gov with the identifier NCT01918254 first registered on 3rd July 2013. PMID- 29349601 TI - Prospective feasibility analysis of a novel off-line approach for MR-guided radiotherapy. AB - BACKGROUND: The present work aimed to analyze the feasibility of a shuttle-based MRI-guided radiation therapy (MRgRT) in the treatment of pelvic malignancies. PATIENTS AND METHODS: 20 patients with pelvic malignancies were included in this prospective feasibility analysis. Patients underwent daily MRI in treatment position prior to radiotherapy at the German Cancer Research Center. Positional inaccuracies, time and patient compliance were assessed for the application of off-line MRgRT. RESULTS: In 78% of applied radiation fractions, MR imaging for position verification could be performed without problems. Additionally, treatment-related side effects and reduced patient compliance were only responsible for omission of MRI in 9% of radiation fractions. The study workflow took a median time of 61 min (range 47-99 min); duration for radiotherapy alone was 13 min (range 7-26 min). Patient positioning, MR imaging and CT imaging including patient repositioning and the shuttle transfer required median times of 10 min (range 7-14 min), 26 min (range 15-60 min), 5 min (range 3-8 min) and 8 min (range 2-36 min), respectively. To assess feasibility of shuttle-based MRgRT, the reference point coordinates for the x, y and z axis were determined for the MR images and CT obtained prior to the first treatment fraction and correlated with the coordinates of the planning CT. In our dataset, the median positional difference between MR imaging and CT-based imaging based on fiducial matching between MR and CT imaging was equal to or less than 2 mm in all spatial directions. The limited space in the MR scanner influenced patient selection, as the bore of the scanner had to accommodate the immobilization device and the constructed stereotactic frame. Therefore, obese, extremely muscular or very tall patients could not be included in this trial in addition to patients for whom exposure to MRI was generally judged inappropriate. CONCLUSION: This trial demonstrated for the first time the feasibility and patient compliance of a shuttle-based off-line approach to MRgRT of pelvic malignancies. PMID- 29349602 TI - Does the interval from tumour surgery to radiotherapy influence survival in paediatric high grade glioma? AB - PURPOSE: Paediatric high grade glioma (pHGG) are rare. Following maximum safe resection, children >3 years with HGG receive radiotherapy as standard of care. Whether the interval from tumour surgery to radiotherapy (ISRT) influences survival is disputed in adults with glioblastoma, data for children are lacking. This retrospective single-centre analysis investigates a possible impact of ISRT on survival in paediatric patients with HGG. METHODS: Survival was analysed in patients aged 3-19 years with non-pontine HGG. RESULTS: Thirty-eight patients were included (female:male 19:19) with a median age of 11.0 years (3.4-17.7). Seventeen patients had grade 3 and 21 grade 4 glioma. Gross total resection was achieved in 26.3%, partial resection in 36.8% and 36.8% underwent biopsy only. All patients received concomitant and adjuvant chemotherapy. Fifty percent (n = 19) started irradiation <=17 days (median interval 12 days [range 5-17]), 50% thereafter (median 28 days [range 19-78]). More patients with grade 4 tumours were irradiated shortly after surgery. ISRT (as a continuous variable and dichotomised into two groups by the median ISRT of 18 days) did not significantly influence overall survival (OS) or progression-free survival (PFS). Higher extent of resection (EOR), lower tumour grade as well as chemotherapy with temozolomide had a significant positive impact on OS and PFS in univariate analysis and (except for the effect of temozolomide on PFS) also in multivariable analysis. CONCLUSIONS: ISRT did not influence survival in pHGG. In view of upcoming targeted treatment options in pHGG the present data suggest that it is safe to perform molecular analyses within a 4-week timeframe before radiotherapy. PMID- 29349603 TI - Neoadjuvant chemoradiation for esophageal cancer : Surgery improves locoregional control while response based on FDG-PET/CT predicts survival. AB - INTRODUCTION: To retrospectively analyze the outcome of patients with esophageal cancer treated with neoadjuvant chemoradiation. METHODS: A total of 41 patients received neoadjuvant intent chemoradiation for esophageal cancer. Most patients had a locally advanced disease (T3/4: 82%, N+: 83%, M0: 100%) and squamous cell carcinoma (83%). All patients received concurrent chemotherapy with cisplatin/5 fluorouracil or mitomycin/5-fluorouracil. Median radiation dose was 50.4 Gy in the 25 patients who proceeded to surgery and 57.4 Gy in 16 patients who did not undergo surgery. FDG-PET/CT was used for treatment planning in 24 patients. A second FDG-PET/CT was available for response evaluation in 18 patients. RESULTS: Median follow-up was 16 months in all patients and 30 months in survivors. Radiotherapy was completed without interruptions >3 days in 90% of patients, and chemotherapy was carried out to >80% in 85% of patients. The 2-year locoregional control rate was 60%, distant control rate 54% and overall survival rate 50%. Hematological toxicity grade 3/4 was observed in 34%/10% of patients and non hematological toxicity grade 3/4 in 46%/2% of patients. Perioperative 30-day mortality was 4%. Subgroup analyses revealed that surgery significantly improved locoregional control (74% vs. 39%, p = 0.034), but not the 2-year survival rate (54% vs. 43%, p = 0.246). In contrast, response based on FDG-PET/CT prior and after chemoradiation significantly predicted improved overall survival (2-year overall survival 61% vs. 40%, p = 0.048). CONCLUSION: Outcomes of our cohort were comparable to other series using similar treatments. Surgery significantly improved locoregional control but not survival. Response based on FDG-PET/CT predicted survival and might be used for treatment stratification. PMID- 29349604 TI - Quality of training in radiation oncology in Germany: where do we stand? : Results from a 2016/2017 survey performed by the working group "young DEGRO" of the German society of radiation oncology (DEGRO). AB - PURPOSE: To evaluate the current situation of young radiation oncologists in Germany with regard to the contents and quality of training and level of knowledge, as well as their working conditions and professional satisfaction. METHODS: From June 2016 to February 2017, a survey was conducted by the young DEGRO (yDEGRO) using an online platform. The questionnaire consisted of 28 items examining a broad range of aspects influencing residency. There were 96 completed questionnaires RESULTS: 83% of participants stated to be very or mostly pleased with their residency training. Moderate working hours and a good colleagueship contribute to a comfortable working environment. Level of knowledge regarding the most common tumor sites (i.e. palliative indications, lung, head and neck, brain, breast, prostate) was pleasing. Radiochemotherapy embodies a cornerstone in training. Modern techniques such as intensity-modulated radiotherapy (IMRT) and stereotactic procedures are now in widespread use. Education for rare indications and center-based procedures offers room for improvement. CONCLUSION: Radiation oncology remains an attractive and versatile specialty with favorable working conditions. Continuing surveys in future years will be a valuable measuring tool to set further priorities in order to preserve and improve quality of training. PMID- 29349606 TI - Well-Differentiated Liposarcoma (Atypical Lipomatous Tumor) Presenting as an Esophageal Polyp. PMID- 29349605 TI - Improved effectiveness of stereotactic radiosurgery in large brain metastases by individualized isotoxic dose prescription: an in silico study. AB - INTRODUCTION: In large brain metastases (BM) with a diameter of more than 2 cm there is an increased risk of radionecrosis (RN) with standard stereotactic radiosurgery (SRS) dose prescription, while the normal tissue constraint is exceeded. The tumor control probability (TCP) with a single dose of 15 Gy is only 42%. This in silico study tests the hypothesis that isotoxic dose prescription (IDP) can increase the therapeutic ratio (TCP/Risk of RN) of SRS in large BM. MATERIALS AND METHODS: A treatment-planning study with 8 perfectly spherical and 46 clinically realistic gross tumor volumes (GTV) was conducted. The effects of GTV size (0.5-4 cm diameter), set-up margins (0, 1, and 2 mm), and beam arrangements (coplanar vs non-coplanar) on the predicted TCP using IDP were assessed. For single-, three-, and five-fraction IDP dose-volume constraints of V12Gy = 10 cm3, V19.2 Gy = 10 cm3, and a V20Gy = 20 cm3, respectively, were used to maintain a low risk of radionecrosis. RESULTS: In BM of 4 cm in diameter, the maximum achievable single-fraction IDP dose was 14 Gy compared to 15 Gy for standard SRS dose prescription, with respective TCPs of 32 and 42%. Fractionated SRS with IDP was needed to improve the TCP. For three- and five-fraction IDP, a maximum predicted TCP of 55 and 68% was achieved respectively (non-coplanar beams and a 1 mm GTV-PTV margin). CONCLUSIONS: Using three-fraction or five-fraction IDP the predicted TCP can be increased safely to 55 and 68%, respectively, in large BM with a diameter of 4 cm with a low risk of RN. Using IDP, the therapeutic ratio of SRS in large BM can be increased compared to current SRS dose prescription. PMID- 29349607 TI - Molecular characterization of Fagaceae species using inter-primer binding site (iPBS) markers. AB - Retrotransposons (RTNs) contribute for genome evolution, influencing its size and structure. We investigated the utility of the RTN-based markers inter-primer binding site (iPBS) for the molecular characterization of 25 Fagaceae species from genera Castanea, Fagus and Quercus. The assessment of genetic diversity, relationships and structure, as well as taxonomic classification of Fagaceae based on molecular data is important for definition of conservation, forestry management strategies and discrimination among natural hybrids and their parents since natural hybridization may increase with the climate changes. Here, iPBS primers designed by other authors were tested alone and combined. Some of them were discriminative, revealed polymorphism within and among taxa allowing the production of a total of 150 iPBS markers. In addition, several monomorphic iPBS markers were also amplified in each taxon. The UPGMA dendrogram based on the pooled iPBS data revealed 27% of genetic similarity among species. The individuals were clustered per genus and most of the oaks per infrageneric group corroborating the adopted taxonomy. Globally, the iPBS markers demonstrated suitability for DNA fingerprinting, determination of phylogenies and taxonomic discrimination in Fagaceae, and could constitute a useful and alternative tool for germplasm characterization, and for definition of conservation strategies and forestry management. Moreover, these markers would be useful for fingerprinting natural hybrids that share morphological similarities with their parents. Since iPBS markers could also enable insights about RTNs evolution, an eventual correlation among iPBS polymorphism, variability of RTN insertions and/or genome size in Fagaceae is discussed. PMID- 29349609 TI - Caspase-1-Mediated Pyroptosis of the Predominance for Driving CD4[Formula: see text] T Cells Death: A Nonlocal Spatial Mathematical Model. AB - Caspase-1-mediated pyroptosis is the predominance for driving CD4[Formula: see text] T cells death. Dying infected CD4[Formula: see text] T cells can release inflammatory signals which attract more uninfected CD4[Formula: see text] T cells to die. This paper is devoted to developing a diffusive mathematical model which can make useful contributions to understanding caspase-1-mediated pyroptosis by inflammatory cytokines IL-1[Formula: see text] released from infected cells in the within-host environment. The well-posedness of solutions, basic reproduction number, threshold dynamics are investigated for spatially heterogeneous infection. Travelling wave solutions for spatially homogeneous infection are studied. Numerical computations reveal that the spatially heterogeneous infection can make [Formula: see text], that is, it can induce the persistence of virus compared to the spatially homogeneous infection. We also find that the random movements of virus have no effect on basic reproduction number for the spatially homogeneous model, while it may result in less infection risk for the spatially heterogeneous model, under some suitable parameters. Further, the death of infected CD4[Formula: see text] cells which are caused by pyroptosis can make [Formula: see text], that is, it can induce the extinction of virus, regardless of whether or not the parameters are spatially dependent. PMID- 29349608 TI - Comparative transcriptomics uncovers differences in photoautotrophic versus photoheterotrophic modes of nutrition in relation to secondary metabolites biosynthesis in Swertia chirayita. AB - Swertia chirayita is a high-value medicinal herb exhibiting antidiabetic, hepatoprotective, anticancer, antiediematogenic and antipyretic properties. Scarcity of its plant material has necessitated in vitro production of therapeutic metabolites; however, their yields were low compared to field grown plants. Possible reasons for this could be differences in physiological and biochemical processes between plants grown in photoautotrophic versus photoheterotrophic modes of nutrition. Comparative transcriptomes of S. chirayita were generated to decipher the crucial molecular components associated with the secondary metabolites biosynthesis. Illumina HiSeq sequencing yielded 57,460 and 43,702 transcripts for green house grown (SCFG) and tissue cultured (SCTC) plants, respectively. Biological role analysis (GO and COG assignments) revealed major differences in SCFG and SCTC transcriptomes. KEGG orthology mapped 351 and 341 transcripts onto secondary metabolites biosynthesis pathways for SCFG and SCTC transcriptomes, respectively. Nineteen out of 30 genes from primary metabolism showed higher in silico expression (FPKM) in SCFG versus SCTC, possibly indicating their involvement in regulating the central carbon pool. In silico data were validated by RT-qPCR using a set of 16 genes, wherein 10 genes showed similar expression pattern across both the methods. Comparative transcriptomes identified differentially expressed transcription factors and ABC type transporters putatively associated with secondary metabolism in S. chirayita. Additionally, functional classification was performed using NCBI Biosystems database. This study identified the molecular components implicated in differential modes of nutrition (photoautotrophic vs. photoheterotrophic) in relation to secondary metabolites production in S. chirayita. PMID- 29349611 TI - Abstracts of the 6th international multiple system atrophy congress. PMID- 29349610 TI - Ligand Binding Dynamics for Pre-dimerised G Protein-Coupled Receptor Homodimers: Linear Models and Analytical Solutions. AB - Evidence suggests that many G protein-coupled receptors (GPCRs) are bound together forming dimers. The implications of dimerisation for cellular signalling outcomes, and ultimately drug discovery and therapeutics, remain unclear. Consideration of ligand binding and signalling via receptor dimers is therefore required as an addition to classical receptor theory, which is largely built on assumptions of monomeric receptors. A key factor in developing theoretical models of dimer signalling is cooperativity across the dimer, whereby binding of a ligand to one protomer affects the binding of a ligand to the other protomer. Here, we present and analyse linear models for one-ligand and two-ligand binding dynamics at homodimerised receptors, as an essential building block in the development of dimerised receptor theory. For systems at equilibrium, we compute analytical solutions for total bound labelled ligand and derive conditions on the cooperativity factors under which multiphasic log dose-response curves are expected. This could help explain data extracted from pharmacological experiments that do not fit to the standard Hill curves that are often used in this type of analysis. For the time-dependent problems, we also obtain analytical solutions. For the single-ligand case, the construction of the analytical solution is straightforward; it is bi-exponential in time, sharing a similar structure to the well-known monomeric competition dynamics of Motulsky-Mahan. We suggest that this model is therefore practically usable by the pharmacologist towards developing insights into the potential dynamics and consequences of dimerised receptors. PMID- 29349612 TI - Dexamethasone-induced leukocytosis is associated with poor survival in newly diagnosed glioblastoma. AB - Despite its well-characterized side effects, dexamethasone is widely used in the pre-, peri- and postoperative neurosurgical setting due to its effective relief of tumor-induced symptoms through the reduction of tumor-associated edema. However, some patients show laboratory-defined dexamethasone induced elevation of white blood cell count, and its impact on glioblastoma progression is unknown. We retrospectively analyzed 113 patients with newly diagnosed glioblastoma to describe the incidence, risk factors and clinical features of dexamethasone induced leukocytosis in primary glioblastoma patients. We further conducted an immunohistochemical analysis of the granulocyte and lymphocyte tumor-infiltration in the available corresponding histological sections. Patient age was identified to be a risk factor for the development of dexamethasone-induced leukocytosis (p < 0.05). The presence of dexamethasone-induced leukocytosis decreased overall survival (HR 2.25 95% CI [1.15-4.38]; p < 0.001) and progression-free survival (HR 2.23 95% CI [1.09-4.59]; p < 0.01). Furthermore, patients with dexamethasone induced leukocytosis had significantly reduced CD15 + granulocytic- (p < 0.05) and CD3 + lymphocytic tumour infiltration (p < 0.05). We identified a subgroup of glioblastoma patients that are at particularly high risk for poor outcome upon dexamethasone treatment. Therefore, restrictive dosage or other edema reducing substances should be considered in patients with dexamethasone-induced leukocytosis. PMID- 29349613 TI - Tumor treating fields: a new approach to glioblastoma therapy. AB - Glioblastoma is an aggressive brain malignancy with poor outcomes. Current standard of care involves surgery, radiotherapy and chemotherapy. Even with optimal treatment, 5-year survival rates are low. Many patients are unable to tolerate the considerable side effects that therapy involves and suffer from low quality of life. Anti-mitotic tumor treating fields have shown potential in treating glioblastoma with data suggesting that they prolong disease-free survival and overall survival. Novocure has marketed a device that generates these fields via externally placed electrodes. Incorporation of electric field therapy into GBM treatment has been somewhat slow, due to concerns about cost, practicality of its usage from a patient perspective, and hesitation of the medical and scientific community to embrace its unconventional mechanism. However, clinical trials have demonstrated this therapy has relatively minor side effects and high patient compliance. In this review, we explore the current state of this technology and discuss the benefits and limitations of tumor treating fields. PMID- 29349614 TI - Treatment and outcomes of 28 patients with spinal metastasis from gynecological cancer. AB - The aim of this study was to provide some useful information concerning clinical characteristics, surgical treatment, potential contributing factor and prognostic factors for patients with gynecological cancer (GC) spinal metastasis. We reviewed 28 patients with GC spinal metastasis in our spine tumor center between July 2008 and July 2015. Surgeries were performed on 22 of them. Univariate and multivariate analyses were conducted to identify potential prognostic factors affecting spinal metastasis-free survival (SMFS) and overall survival. The operative patients responded favorably according to decrease of VAS score and increase of Frankel grade after surgery. The 1- and 2-year survival rates in all patients were 60.7 and 41.0%, respectively. Univariate analysis suggested that age at diagnosis with GC was the potential contributing factor for spinal metastasis, while Frankel grade, ECOG-PS, visceral metastasis and chemotherapy were the potential prognostic factors affecting survival. Multivariate analysis indicated that the independent prognostic factors came from visceral metastasis and chemotherapy. Surgery played an important role in improving patients' quality of life. Patients over 50 years old had a shorter SMFS after diagnosed with GC. Visceral metastasis was an adverse prognostic factor for patients with GC spinal metastasis, while chemotherapy was a favorable one. PMID- 29349615 TI - Long-term follow-up (at 5 years) of midline incisional hernia repairs using a primary closure and prosthetic onlay technique: recurrence and quality of life. AB - INTRODUCTION AND OBJECTIVES: The recurrence rate of incisional hernia (IH) repair is usually underestimated due to a lack of long-term follow-up. The objective of this study was to evaluate recurrence rate for patients operated on midline IH surgery, using a primary closure and prosthetic onlay technique, 5 years after the procedure. MATERIALS AND METHODS: From January 2009 to January 2011, all 92 patients operated on elective midline IH repair by primary closure and prosthetic onlay technique in a General Surgery Department were retrospectively included in the study. Exclusion criteria were absence of follow-up or death. Recurrence rate and quality of life were assessed. Demographic, surgical data and quality of life in patients with and without 5-year recurrence were compared. RESULTS: Mean follow-up was 64 months. Ultimately, 76 patients were included in the study, representing 82% of the selected patients during the study period (76/92), of whom 24 presented a recurrence (32%). Half (12) were diagnosed for recurrence more than 3 years after the surgery. Patients who developed a recurrence had more percentage of obesity (64 vs. 29%, p = 0.016), which denoted an odds ratio (OR) for recurrence of 4.4 (1.2-15.7; p = 0.01) and they punctuated lower in quality of life (6.0 +/- 2.9 vs. 7.6 +/- 2.6, p = 0.006). CONCLUSIONS: Recurrence rate on midline IH repair is still a concern (32% at 5 years). It is advisable to look for other strategies and more efficient surgical techniques for IH surgery, especially in obese patients. PMID- 29349616 TI - Outcomes of utilizing absorbable mesh as an adjunct to posterior sheath closure during complex posterior component separation. AB - BACKGROUND: A minority of patients undergoing posterior component separation (PCS) have abdominal wall defects that preclude complete reconstruction of the visceral sac with native tissue. The use of absorbable mesh bridges (AMB) to span such defects has not been established. We hypothesized that AMB use during posterior sheath closure of PCS is safe and provides favorable outcomes. METHODS: We performed a retrospective review of consecutive patients undergoing PCS with AMB at two hernia centers. Main outcome measures included demographics, comorbidities, and post-operative complications. RESULTS: 36 patients were identified. Post-operative wound complications included five surgical site infections. At a median of 27 months, there were five recurrent hernias (13.9%), 2 of which were parastomal, but no episodes of intestinal obstruction/fistula. CONCLUSIONS: Utilization of AMB for large posterior layer deficits results in acceptable rates of perioperative wound morbidity, effective PCS repairs, and does not increase intestinal morbidity or fistula formation. PMID- 29349617 TI - Use of venovenous ECMO for neonatal and pediatric ECMO: a decade of experience at a tertiary children's hospital. AB - BACKGROUND: Advances in extracorporeal membrane oxygenation (ECMO) have led to increased use of venovenous (VV) ECMO in the pediatric population. We present the evolution and experience of pediatric VV ECMO at a tertiary care institution. METHODS: A retrospective cohort study from 01/2005 to 07/2016 was performed, comparing by cannulation mode. Survival to discharge, complications, and decannulation analyses were performed. RESULTS: In total, 160 patients (105 NICU, 55 PICU) required 13 +/- 11 days of ECMO. VV cannulation was used primarily in 83 patients with 64% survival, while venoarterial (VA) ECMO was used in 77 patients with 54% survival. Overall, 74% of patients (n = 118) were successfully decannulated; 57% survived to discharge. VA ECMO had a higher rate of intra cranial hemorrhage than VV (22 vs 9%, p = 0.003). Sixteen VA patients (21%) had radiographic evidence of a cerebral ischemic insult. No cardiac complications occurred with the use of dual-lumen VV cannulas. There were no differences in complications (p = 0.40) or re-operations (p = 0.85) between the VV and VA groups. CONCLUSION: Dual-lumen VV ECMO can be safely performed with appropriate image guidance, is associated with a lower rate of intra-cranial hemorrhage, and may be the preferred first-line mode of ECMO support in appropriately selected NICU and PICU patients. LEVEL OF EVIDENCE: II. PMID- 29349618 TI - Respiratory Training Late After Fontan Intervention: Impact on Cardiorespiratory Performance. AB - Fontan palliation allows patients with "single ventricle" circulation to reach adulthood with an acceptable quality of life, although exercise tolerance is significantly reduced. To assess whether controlled respiratory training (CRT) increases cardiorespiratory performance. 16 Adolescent Fontan patients (age 17. 5 +/- 3.8 years) were enrolled. Patients were divided into CRT group (n = 10) and control group (C group, n = 6). Maximal cardiopulmonary test (CPT) was repeated at the end of CRT in the CRT group and after an average time of 3 months in the C group. In the CRT group a CPT endurance was also performed before and after CRT. In the CRT group there was a significant improvement in cardiovascular and respiratory response to exercise after CRT. Actually, after accounting for baseline values, the CRT group had decreased breathing respiratory reserve (- 15, 95% CI -22.3 to - 8.0, p = 0.001) and increased RR peak (+ 4.8, 95% CI 0.7-8.9, p = 0.03), VE peak (+ 13.7, 95% CI 5.6-21.7, p = 0.004), VO2 of predicted (+ 8.5, 95% CI 0.1-17.0, p = 0.05), VO2 peak (+ 4.3, 95% CI 0.3 to 8.2, p = 0.04), and VO2 workslope (+ 1.7, 95% CI 0.3-3.1, p = 0.02) as compared to the control group. Moreover, exercise endurance time increased from 8.45 to 17.7 min (p = 0.01). CRT improves cardiorespiratory performance in post-Fontan patients leading to a better aerobic capacity. PMID- 29349619 TI - 1H, 15N, and 13C chemical shift assignments of the micelle immersed FAT C terminal (FATC) domains of the human protein kinases ataxia-telangiectasia mutated (ATM) and DNA-dependent protein kinase catalytic subunit (DNA-PKcs) fused to the B1 domain of streptococcal protein G (GB1). AB - FAT C-terminal (FATC) is a circa 33 residue-long domain. It controls the kinase functionality in phosphatidylinositol-3 kinase-related kinases (PIKKs). Recent NMR- and CD-monitored interaction studies indicated that the FATC domains of all PIKKs can interact with membrane mimetics albeit with different preferences for membrane properties such as surface charge and curvature. Thus they may generally act as membrane anchoring unit. Here, we present the 1H, 15N, and 13C chemical shift assignments of the DPC micelle immersed FATC domains of the human PIKKs ataxia-telangiectasia mutated (ATM, residues 3024-3056) and DNA protein kinase catalytic subunit (DNA-PKcs, residues 4096-4128), both fused to the 56 residue long B1 domain of Streptococcal protein G (GB1). Each fusion protein is 100 amino acids long and contains in the linking region between the GB1 tag and the FATC region a thrombin (LVPRGS) and an enterokinase (DDDDK) protease site. The assignments pave the route for the detailed structural characterization of the membrane mimetic bound states, which will help to better understand the role of the proper cellular localization at membranes for the function and regulation of PIKKs. The chemical shift assignment of the GB1 tag is useful for NMR spectroscopists developing new experiments or using GB1 otherwise for case studies in the field of in-cell NMR spectroscopy or protein folding. Moreover it is often used as purification tag. Earlier we showed already that GB1 does not interact with membrane mimetics and thus does not disturb the NMR monitoring of membrane mimetic interactions of attached proteins. PMID- 29349620 TI - Fatal Talaromyces marneffei Infection in a Patient with Autoimmune Hepatitis. AB - Talaromyces marneffei, previously known as Penicillium marneffei, is the most important pathogenic thermally dimorphic fungus causing systemic mycosis in Southeast Asia. Traditionally, T. marneffei infection in human was mainly associated with acquired immunodeficiency syndrome caused by HIV infection. In recent years, there has been an increasing number of T. marneffei infections reported in non-HIV-infected patients with other immunocompromised conditions, including autoantibodies against interferon-gamma, systemic lupus erythematosis, solid organ transplantation, Job's syndrome, hematological malignancies, and use of novel targeted therapies. In this article, we describe the first case of fatal T. marneffei infection in a patient with underlying autoimmune hepatitis, presented as fever without localizing features. The diagnosis of talaromycosis was confirmed with the identification of the fungi isolated from the blood culture specimen by conventional methods and using matrix-assisted laser desorption-ionization time-of-flight mass spectrometer. This case shows the importance of a high index of suspicion, particularly for such a highly fatal but potentially treatable fungal infection. PMID- 29349621 TI - Adsorption and leaching of novel fungicide pyraoxystrobin on soils by 14C tracing method. AB - Pyraoxystrobin, (E)-2-(2-((3-(4-chlorophenyl)-1-methyl-1H-pyrazole-5 yloxy)methyl)phenyl)-3-methoxyacrylate, is a newly developed strobilurin fungicide with high antifungal efficiency. It has high potential to enter soil environments that might subsequently impact surface and groundwater. Therefore, 14C-labeled pyraoxystrobin was used as a tracer to study the adsorption/desorption and migration behavior of this compound under laboratory conditions in three typical agricultural soils. The adsorption isotherms conformed with the Freundlich equation. Single factor analysis showed that organic matter content was the most important factor influencing the adsorption. The highest adsorption level was measured in soil with low pH and high organic carbon content. Once adsorbed, only 2.54 to 6.41% of the adsorbed compound could be desorbed. In addition, the mobility results from thin-layer chromatography and column leaching studies showed that it might be safe to use pyraoxystrobin as a fungicide without causing groundwater pollution from both runoff and leaching, which might be attributed to its strong hydrophobicity. High organic matter content enhanced pyraoxystrobin adsorption and desorption because of the rule of similarity (lipid solubility). In the column leaching study, 95.02% (minimum value) of the applied 14C remained within the upper 4.0-cm layer after 60 days. PMID- 29349622 TI - Transfusion practice patterns in patients with anemia receiving myelosuppressive chemotherapy for nonmyeloid cancer: results from a prospective observational study. AB - PURPOSE: The decision to prescribe packed red blood cell (PRBC) transfusions in patients with chemotherapy-induced anemia (CIA) includes assessment of clinical features such as the patient's cancer type and treatment regimen, severity of anemia symptoms, and presence of comorbidities. We examined contemporary transfusion practices in patients with nonmyeloid cancer and CIA. METHODS: Key inclusion criteria were age >= 18 years with nonmyeloid cancer, receiving first/second-line myelosuppressive chemotherapy, baseline hemoglobin (Hb) <= 10.0 g/dL, and planned to receive >= 1 PRBC transfusions. Exclusion criteria were receipt of erythropoiesis-stimulating agents within 8 weeks of screening and/or chronic renal insufficiency. Data were collected from patients' medical records, laboratory values, and physician/provider questionnaires. Proportion of patients for each clinical consideration leading to a decision to prescribe a PRBC transfusion and 95% exact binomial confidence intervals were determined. RESULTS: The study enrolled 154 patients at 18 sites in USA; 147 (95.5%) received a PRBC transfusion. Fatigue was the most common symptom affecting the decision to prescribe a PRBC transfusion (101 [69.2%] patients). Of the three reasons selected as primary considerations for prescribing a PRBC transfusion, anemia symptoms (106 [72.1%] patients) was the most frequently reported, followed by Hb value (37 [25.2%] patients) and medical history (4 [2.7%] patients). CONCLUSIONS: In this study, the primary consideration for prescribing a PRBC transfusion was anemia symptoms in 72.1% of patients, with only 25.2% of patients prescribed a transfusion based exclusively on Hb value. Results indicate that clinical judgment and patient symptoms, not just Hb value, were used in decisions to prescribe PRBC transfusions. PMID- 29349624 TI - Combined effects of aspirin and vitamin D3 on two OSCC cell lines: a preliminary study. AB - OBJECTIVES: We evaluated the potential effects of aspirin combined with vitamin D3 on cell proliferation and apoptosis in oral cancer cells. RESULTS: Compared to the untreated control or individual drug, the combinations of aspirin and vitamin D3 significantly decreased the rates of cell proliferation by CCK-8 assay, and caused higher rates of cell apoptosis in both CAL-27 and SCC-15 cells by Annexin V-FITC apoptosis assay and flow cytometry. Remarkably, the combined treatment with aspirin and vitamin D3 significantly suppressed the expression of Bcl-2 protein and p-Erk1/2 protein, examined by western blot analysis. CONCLUSIONS: Our study demonstrates that aspirin and vitamin D3 have biological activity against two human OSCC cell lines and their activity is synergistic or additive when two drugs used in combination with therapeutic concentrations. The combination of aspirin and vitamin D3 may be an effective approach for inducing cell death in OSCC. PMID- 29349623 TI - The association between Toxoplasma gondii infection and hypertensive disorders in T2DM patients: a case-control study in the Han Chinese population. AB - Type 2 diabetes mellitus (T2DM) is a major global health problem. The rate of infection with Toxoplasma gondii (T. gondii) is more than one-third of the total world population. The effects of T. gondii infection on the risk of diabetic complications and comorbidities are unclear. This study aims to determine the relationship between T. gondii infection and complications of T2DM in the Han Chinese population. We collected 1580 blood samples from T2DM patients and measured the levels of specific IgG antibodies against T. gondii in the sera of these patients using an ELISA assay. A logistic regression analysis was performed to estimate the effect of T. gondii infection on the complications of T2DM, while adjusting for age, gender, and triglyceride level (TG). We applied the multifactor dimensionality reduction (MDR) method to detect the interactions between T. gondii infections, demographic indexes and biochemical indicators among the different complications. Gender (the odds ratio (OR) = 0.63, 95%CI =0.45-0.89, P = 0.008) and TG level (OR = 0.64, 95%CI =0.45-0.89, P = 0.009) were influencing factors in T. gondii infections. T2DM patients who were infected with T. gondii had a 2.34 times risk of developing hypertension than those patients without T. gondii infection (OR = 2.34, 95%CI = 1.12-4.88, P = 0.024). The multiplicative interaction analysis and the additive interaction analysis did not reveal any evidence of interactive effects on diabetic complications and comorbidities. T. gondii might be a factor associated with hypertension in T2DM patients. PMID- 29349625 TI - Enhancement of the thermal and alkaline pH stability of Escherichia coli lysine decarboxylase for efficient cadaverine production. AB - OBJECTIVE: To enhance the thermal and alkaline pH stability of the lysine decarboxylase from Escherichia coli (CadA) by engineering the decameric interface and explore its potential for industrial applications. RESULTS: The mutant T88S was designed for improved structural stability by computational analysis. The optimal pH and temperature of T88S were 7.0 and 55 degrees C (5.5 and 50 degrees C for wild-type). T88S showed higher thermostability with a 2.9-fold increase in the half-life at 70 degrees C (from 11 to 32 min) and increased melting temperature (from 76 to 78 degrees C). Additionally, the specific activity and pH stability (residual activity after 10 h incubation) of T88S at pH 8.0 were increased to 164 U/mg and 78% (58 U/mg and 57% for wild-type). The productivity of cadaverine with T88S (284 g L-lysine L-1 and 5 g DCW L-1) was 40 g L-1 h-1, in contrast to 28 g L-1 h-1 with wild-type. CONCLUSION: The mutant T88S showed high thermostability, pH stability, and activity at alkaline pH, indicating that this mutant is a promising biocatalyst for industrial production of cadaverine. PMID- 29349626 TI - A two-stage system coupling hydrolytic acidification with algal microcosms for treatment of wastewater from the manufacture of acrylonitrile butadiene styrene (ABS) resin. AB - OBJECTIVES: To demonstrate the effectiveness of a novel two-stage system coupling hydrolytic acidification with algal microcosms for the treatment of acrylonitrile butadiene styrene (ABS) resin-manufacturing wastewater. RESULTS: After hydrolytic acidification, the BOD5/COD ratio increased from 0.22 to 0.56, showing improved biodegradability of the wastewater. Coupled with hydrolytic acidification, the algal microcosms showed excellent capability of in-depth removal of COD, NH3-N and phosphorus with removal rates 83, 100, and 89%, respectively, and aromatic pollutants, including benzene, were almost completely removed. The biomass concentration of Chlorella sp. increased from 5 * 106 to 2.1 * 107 cells/ml after wastewater treatment. CONCLUSIONS: This two-stage coupling system achieved deep cleaning of the benzene-containing petrochemical wastewater while producing greater algae biomass resources at low cost. PMID- 29349627 TI - Modeling and simulation of enzymatic gluconic acid production using immobilized enzyme and CSTR-PFTR circulation reaction system. AB - OBJECTIVES: Production of gluconic acid by using immobilized enzyme and continuous stirred tank reactor-plug flow tubular reactor (CSTR-PFTR) circulation reaction system. RESULTS: A production system is constructed for gluconic acid production, which consists of a continuous stirred tank reactor (CSTR) for pH control and liquid storage and a plug flow tubular reactor (PFTR) filled with immobilized glucose oxidase (GOD) for gluconic acid production. Mathematical model is developed for this production system and simulation is made for the enzymatic reaction process. The pH inhibition effect on GOD is modeled by using a bell-type curve. CONCLUSIONS: Gluconic acid can be efficiently produced by using the reaction system and the mathematical model developed for this system can simulate and predict the process well. PMID- 29349628 TI - Serum Total Magnesium Level and its Correlation with Symptom Control in Children with Mild Persistent Asthma. AB - OBJECTIVES: To determine the prevalence of hypomagnesemia in children with mild persistent asthma and to correlate the serum magnesium levels with symptom control in the above children. METHODS: It was a cross sectional study carried out from 1st April 2015 to 31st July 2016 at the department of Pediatrics, JIPMER Hospital. Participants included six to 12-y-old children with mild persistent asthma registered at childhood asthma clinic. Pulmonary function tests were done in all children using Care fusion Jaeger spirometer. Symptom control was assessed by childhood asthma control test questionnaire and the asthma control test questionnaire (ACT) score. Serum magnesium was measured using photometric method. Proportion of children with well controlled, partially controlled and poorly controlled asthma, serum magnesium levels across the three levels of control and correlation of serum magnesium level with ACT score and pulmonary function tests were studied. RESULTS: The prevalence of hypomagnesemia in children with mild persistent asthma was 5.6%. The median serum magnesium level was 2.0 mg/dl (IQR 1.9-2.1 mg/dL). As assessed by the ACT score, 66% had well controlled, 23% had partially controlled and 11% had poorly controlled asthma. There was no significant difference in the serum magnesium levels in the above three groups. There was no significant correlation between serum magnesium levels and ACT score as well as pulmonary function tests. CONCLUSIONS: The prevalence of hypomagnesemia in the index study is much lower than earlier studies and there seems to be no significant association between serum magnesium levels and asthma symptom control. PMID- 29349629 TI - Cerebellum: from Development to Disease-the 8th International Symposium of the Society for Research on the Cerebellum and Ataxias. AB - In recent years, there has been tremendous growth in research on cerebellar motor and non-motor functions. Cerebellum is particularly involved in the spectrum of neurodevelopmental diseases. The 8th International Symposium of the Society for Research on the Cerebellum and Ataxia (SRCA) was held in Winnipeg, Manitoba, (Canada) on May 24-26, 2017. The main theme of the 8th International Symposium was "Development of the Cerebellum and Neurodevelopmental Disorders." Advances in genetics, epigenetic, cerebellar neurogenesis, axonogenesis and gliogenesis, cerebellar developmental disorders including autism spectrum disorders (ASD), neuroimaging, cerebellar ataxias, medulloblastoma, and clinical investigation of cerebellar diseases were presented. The goal of this symposium was to provide a platform to discuss cutting-edge knowledge while allowing researchers and trainees the opportunity to share and discuss their front-line research and ideas with others in the field, make connections, and strengthen international collaborations. The Ferdinando Rossi lecture was delivered by Dr. Richard Hawkes on the topic of patterning of the cerebellar cortex. This symposium emphasized the major importance of the involvement of the cerebellum in neurodevelopmental diseases from the clinical, radiological, biological, and genetic standpoint. PMID- 29349630 TI - Developmental Changes in Serotonergic Modulation of GABAergic Synaptic Transmission and Postsynaptic GABAA Receptor Composition in the Cerebellar Nuclei. AB - Outputs from the cerebellar nuclei (CN) are important for generating and controlling movement. The activity of CN neurons is controlled not only by excitatory inputs from mossy and climbing fibers and by gamma-aminobutyric acid (GABA)-based inhibitory transmission from Purkinje cells in the cerebellar cortex but is also modulated by inputs from other brain regions, including serotonergic fibers that originate in the dorsal raphe nuclei. We examined the modulatory effects of serotonin (5-HT) on GABAergic synapses during development, using rat cerebellar slices. As previously reported, 5-HT presynaptically decreased the amplitudes of stimulation-evoked inhibitory postsynaptic currents (IPSCs) in CN neurons, with this effect being stronger in slices from younger animals (postnatal days [P] 11-13) than in slices from older animals (P19-21). GABA release probabilities accordingly exhibited significant decreases from P11-13 to P19-21. Although there was a strong correlation between the GABA release probability and the magnitude of 5-HT-induced inhibition, manipulating the release probability by changing extracellular Ca2+ concentrations failed to control the extent of 5-HT-induced inhibition. We also found that the IPSCs exhibited slower kinetics at P11-13 than at P19-21. Pharmacological and molecular biological tests revealed that IPSC kinetics were largely determined by the prevalence of alpha1 subunits within GABAA receptors. In summary, pre- and postsynaptic developmental changes in serotonergic modulation and GABAergic synaptic transmission occur during the second to third postnatal weeks and may significantly contribute to the formation of normal adult cerebellar function. PMID- 29349631 TI - Promoter analysis of the fish gene of slow/cardiac-type myosin heavy chain implicated in specification of muscle fiber types. AB - Vertebrate skeletal muscles consist of heterogeneous tissues containing various types of muscle fibers, where specification of the fiber type is crucial for muscle development. Fish are an attractive experimental model to study the mechanisms of such fiber type specification because of the separated localization of slow and fast muscles in the trunk myotome. We examined regulation of expression of the torafugu gene of slow/cardiac-type myosin heavy chain, MYH M5 , and isolated an operational promoter in order to force its tissue-specific expression across different fish species via the transgenic approach in zebrafish and medaka. This promoter activity was observed in adaxial cell-derived superficial slow muscle fibers under the control of a hedgehog signal. We also uncovered coordinated expression of MYH M5 and Sox6b, which is an important transcriptional repressor for specification of muscle fiber types and participates in hedgehog signaling. Sequence comparison in the 5'-flanking region identified three conserved regions, CSR1-CSR3, between torafugu MYH M5 and its zebrafish ortholog. Analysis of deletion mutants showed that CSR1 significantly stimulates gene expression in slow muscle fibers. In contrast, deletion of CSR3 resulted in ectopic expression of a reporter gene in fast muscle fibers. CSR3 was found to contain a putative Sox family protein-binding site. These results indicate that the dual mechanism causing inhibition in fast muscle fibers and activation in slow muscle fibers is essential for slow muscle fiber-specific gene expression in fish. PMID- 29349632 TI - Growth performance and protective effect of vitamin E on oxidative stress pufferfish (Takifugu obscurus) following by ammonia stress. AB - This study was conducted to determine the effects of vitamin E on growth performance, biochemical parameters, and antioxidant capacity of pufferfish (Takifugu obscurus) exposed to ammonia stress. The experimental basal diets supplemented with vitamin E at the rates of 2.31 (control), 21.84, 40.23, 83.64, 158.93, and 311.64 mg kg-1 dry weight were fed to fish for 60 days. After the feeding trial, the fish were exposed to 100 mg L-1 ammonia-nitrogen for 48 h. The results shown that the vitamin E group significantly improved weight gain, specific growth rate, and the expression levels of growth hormone receptors and insulin-like growth factor. Fish fed with the vitamin E-supplemented diets could increase plasma alkaline phosphatase activities and decrease plasma glutamicoxalacetic transaminase and glutamic-pyruvic transaminase activities. The relative expression levels of heat shock proteins (40.23-311.64 mg kg-1 vitamin E diet group), manganese superoxide dismutase (83.64-158.93 mg kg-1 vitamin E diet group), catalase (40.23-311.64 mg kg-1 vitamin E diet group), and glutathione reductase (40.23-311.64 mg kg-1 vitamin E diet group) were upregulated. On the other hand, the decreased level of reactive oxygen species (ROS) was observed in the 83.64-311.64 mg kg-1 vitamin E additive group. These results showed that vitamin E might have a potentially useful role as an effective antioxidant to improve resistance in pufferfish. PMID- 29349634 TI - Donor Cell-Derived Chronic Myeloproliferative Disease with t(7;11)(p15;p15) after Cord Blood Transplantation in a Patient with Philadelphia Chromosome-Positive Acute Lymphoblastic Leukemia. AB - We report a case of donor cell-derived chronic myeloproliferative disease with t(7;11)(p15;p15) occurring after cord blood transplantation (CBT). A 41-year-old man developed precursor B-cell acute lymphoblastic leukemia with a karyotype of 46, XY, t(9;22)(q34;q11) and inv(9)(p11;q13), for which he received CBT from a sex-mismatched donor at the first complete remission of the leukemia. Five months after CBT, gradual neutrophilia of unknown origin developed following the myeloid reconstitution after CBT. Karyotyping of bone marrow cells at 9 months after CBT showed 46,XX, t(7;11)(p15;p15) in 17/20 dividing cells, but neither Philadelphia chromosome (Ph) nor inv(9)(p11;q13) was present. This is the first report of chronic myeloproliferative disease with t(7;11)(p15;p15) that developed in donor cells after CBT. The donor was well-developed and healthy, at least at the time of follow-up, half a year after the birth. PMID- 29349633 TI - Effects of tetradecylthioacetic acid (TTA) treatment on lipid metabolism in salmon hearts-in vitro and in vivo studies. AB - In intensive farming of Atlantic salmon, a large proportion of observed mortality is related to cardiovascular diseases and circulatory failure, indicating insufficient robustness and inadequate cardiac performance. This paper reports on the use of tetradecylthioacetic acid (TTA) where the main objective was to enhance utilisation of fatty acids (FA), considered the main energy source of the heart. In this study, three experiments were conducted: (I) an in vivo study where salmon post-smolt were administrated dietary TTA in sea, (II) an in vitro study where isolated salmon heart cells were pre-stimulated with increasing doses of TTA and (III) an in vivo experiment where salmon post-smolt were subjected to injections with increasing doses of TTA. In study I, TTA-treated fish had a smaller decrease in heart weight relative to fish bodyweight (CSI) in a period after sea transfer compared to the control. This coincided with lowered condition factor and muscle fat in the TTA-treated fish, which may indicate a higher oxidation of lipids for energy. In study II, the isolated hearts treated with the highest dose of TTA had higher uptake of radiolabelled FA and formation of CO2 and acid-soluble products. In study III, expression of genes regulating peroxisomal FA oxidation, cell growth, elongation and desaturation were upregulated in the heart of TTA injected salmon. In contrast, genes involved in FA transport into the mitochondria were not influenced. In conclusion, these experiments indicate that TTA enhances energy production in salmon hearts by stimulation of FA oxidation. PMID- 29349635 TI - The diving reflex and asphyxia: working across species in physiological ecology. AB - Beginning in the mid-1930s the comparative physiologists Laurence Irving and Per Fredrik (Pete) Scholander pioneered the study of diving mammals, particularly harbor seals. Although resting on earlier work dating back to the late nineteenth century, their research was distinctive in several ways. In contrast to medically oriented physiology, the approaches of Irving and Scholander were strongly influenced by natural history, zoology, ecology, and evolutionary biology. Diving mammals, they argued, shared the cardiopulmonary physiology of terrestrial mammals, but evolution had modified these basic adaptive processes in extreme ways. In particular, seals' remarkable ability to hold breath, lower metabolism, produce energy anaerobically, and resist asphyxiation, provided a sharp contrast with terrestrial mammals, including humans. This diving physiology was an extreme elaboration of a general regulatory mechanism that allowed seals and other diving mammals to remain active underwater for extended periods. The decrease in heart rate referred to as bradycardia or the "diving reflex" was highly developed in diving mammals, but also found in less developed form in many other organisms faced by asphyxia. It therefore served as a kind of "master switch" for lowering metabolism in diving, hibernation, parturition, drowning, and other physiological responses involving lack of oxygen. Studying bradycardia unified a wide diversity of physiological phenomena, while also providing a context for contrasting the physiological responses of various species, including humans. Conducted in the laboratory and the field, this research served as a bridge between a comparative physiological ecology focused on non-human species and a human-centered general physiology. PMID- 29349636 TI - Effects of Asymmetric Local Joule Heating on Silicon Nanowire-Based Devices Formed by Dielectrophoresis Alignment Across Pt Electrodes. AB - We demonstrate the fabrication and characterization of silicon nanowire-based devices in metal-nanowire-metal configuration using direct current dielectrophoresis. The current-voltage characteristics of the devices were found rectifying, and their direction of rectification could be determined by voltage sweep direction due to the asymmetric Joule heating effect that occurred in the electrical measurement process. The photosensing properties of the rectifying devices were investigated. It reveals that when the rectifying device was in reverse-biased mode, the excellent photoresponse was achieved due to the strong built-in electric field at the junction interface. It is expected that rectifying silicon nanowire-based devices through this novel and facile method can be potentially applied to other applications such as logic gates and sensors. PMID- 29349637 TI - Association between keeping home records of catheter exit-site and incidence of peritoneal dialysis-related infections. AB - PURPOSE: To prevent peritoneal dialysis (PD)-related infection, components of self-catheter care have been emphasized. However, studies on the effectiveness of home recording for the prevention of PD-related infections are limited. This study aimed to examine the association between keeping home records of catheter exit site and incidence of PD-related infections. METHODS: Home record books were submitted by patients undergoing PD. The proportion of days on which exit-site home recording was carried out for 120 days (0-100%) was obtained. The patients were divided into the frequent home recording group (>= 40.5%; median value) and the infrequent home recording group (< 40.5%). The associations between the recording group and the incidence rate ratios (IRRs) of PD-related infections were estimated via negative binomial regression models. RESULTS: A total of 67 patients participated in this study (mean age, 66.7 years). The incidence rates for exit-site infection, tunnel infection, and peritonitis were 0.42, 0.22, and 0.06 times/patient-year, respectively. The IRRs of the frequent versus infrequent home recording groups for PD-related infection were 1.58 (95% confidence interval [CI], 0.72-3.46) in the univariate analysis and 1.49 (95% CI, 0.65-3.42) in the multivariate analysis. The IRRs of the frequent versus infrequent home recording groups for composite of surgery to create a new exit site and removal of PD catheter were 0.55 (95% CI, 0.78-3.88) and 0.35 (95% CI, 0.06-1.99), respectively. CONCLUSIONS: This study could not prove that keeping home records of patients' catheter exit site is associated with a lower incidence of PD related infections. PMID- 29349638 TI - Innovation in 3D Echocardiographic Imaging. AB - PURPOSE OF REVIEW: The purpose of this review is to detail three-dimensional echocardiographic (3DE) innovations in pre-surgical planning of congenital heart disease, guidance of catheter interventions such as fusion imaging, and functional assessment of patients with congenital heart disease. RECENT FINDINGS: Innovations in 3DE have helped us delineate the details of atrioventricular valve function and understand the mechanism of atrioventricular valve failure in patients with atrioventricular septal defect and single ventricle post repair. Advancement in holographic display of 3D datasets allows for better manipulation of 3D images in three dimensions and better understanding of anatomic relationships. 3DE with fusion imaging reduces radiation in catheter interventions and provides presentations of 3DE images in the similar fashion as the fluoroscopic images to improve communication between cardiologists. Lastly, 3DE allows for quantitative ventricular volumetric and functional assessment. Recent innovations in 3DE allow for pre-surgical planning for congenital heart disease, reduce radiation using fusion imaging in catheter interventions, and enable accurate assessment of ventricular volume and function without geometric assumptions. PMID- 29349640 TI - Medical Cytogenetics : Reviewed by Shinichi Misawa. PMID- 29349641 TI - Thrombosis and Antithrombotic Therapy : Reviewed by Shinsaku Hirosawa. PMID- 29349639 TI - Outcomes in syncope research: a systematic review and critical appraisal. AB - Syncope is the common clinical manifestation of different diseases, and this makes it difficult to define what outcomes should be considered in prognostic studies. The aim of this study is to critically analyze the outcomes considered in syncope studies through systematic review and expert consensus. We performed a systematic review of the literature to identify prospective studies enrolling consecutive patients presenting to the Emergency Department with syncope, with data on the characteristics and incidence of short-term outcomes. Then, the strengths and weaknesses of each outcome were discussed by international syncope experts to provide practical advice to improve future selection and assessment. 31 studies met our inclusion criteria. There is a high heterogeneity in both outcome choice and incidence between the included studies. The most commonly considered 7-day outcomes are mortality, dysrhythmias, myocardial infarction, stroke, and rehospitalisation. The most commonly considered 30-day outcomes are mortality, haemorrhage requiring blood transfusion, dysrhythmias, myocardial infarction, pacemaker or implantable defibrillator implantation, stroke, pulmonary embolism, and syncope relapse. We present a critical analysis of the pros and cons of the commonly considered outcomes, and provide possible solutions to improve their choice in ED syncope studies. We also support global initiatives to promote the standardization of patient management and data collection. PMID- 29349643 TI - A congenitally hypothyroid young man (Seated Dwarf, Goya's Studio, 19th century). PMID- 29349642 TI - Increased serum periostin concentrations are associated with the presence of diabetic retinopathy in patients with type 2 diabetes mellitus. AB - PURPOSE: To determine the association between serum periostin and the presence of diabetic retinopathy (DR). METHODS: Serum periostin was detected in 114 healthy subjects, 122 patients with type 2 diabetes mellitus (T2DM) and 159 patients with DR and compared among groups. Clinical data and other laboratory measurements such as glycated hemoglobin (HbA1c), lipid profiles, serum creatinine (Cr) and high-sensitivity CRP (hsCRP) were also collected and compared among groups. For subgroup analysis, patients with DR were divided into a non-proliferated diabetic retinopathy (NPDR) group and a proliferated diabetic retinopathy (PDR) group. Multivariate analysis was performed using logistic regression models. RESULTS: The serum periostin level was significantly higher in patients with diabetic retinopathy compared with healthy subjects and patients with T2DM (both P < 0.001, respectively). Also, the periostin level was significantly higher in the PDR group compared to the NPDR group (P = 0.044). Multivariate logistic regression revealed that serum periostin was independently associated with the presence of DR in patients with T2DM (P < 0.001). The receiver operating characteristic (ROC) curves for DR development using serum periostin showed that the area under the receiver operating characteristic curves (AUC) was 0.838 (P < 0.001). CONCLUSIONS: The current study demonstrated that serum periostin is significantly associated with the presence of DR in patients with T2DM and is an independent risk factor of DR. PMID- 29349644 TI - Does Statin Benefits Patients with Heart Failure Undergoing Percutaneous Coronary Intervention? Findings from the Melbourne Interventional Group Registry. AB - PURPOSE: The effectiveness of statins in improving clinical outcomes among patients with heart failure (HF) undergoing percutaneous coronary intervention (PCI) is unclear. We examined the association between use of statins and clinical outcomes in patients with HF included in the Melbourne Interventional Group registry. METHODS: Patients were followed from 30 days to 1 year post-PCI for a primary composite outcome of all-cause mortality and hospitalisation for cardiovascular (CV) causes. Secondary outcomes included major adverse cardiac events (MACE, a composite of all-cause mortality, myocardial infarction and target vessel revascularisation) and hospitalisation for CV causes. Outcomes were compared between statin-treated and non-statin-treated patients (at 30 days post PCI) using propensity scores to balance for risk factors. RESULTS: Among 991 patients included in the inverse probability-weighted Cox model, statin use had no significant effect on the primary composite outcome [adjusted hazard ratio (aHR), 1.03; 95% confidence interval (CI), 0.68 to 1.56; p = 0.89], nor MACE (aHR, 0.99; 95% CI, 0.54 to 1.84; p = 0.99) or hospitalisation for CV causes (HR, 1.13; 95% CI, 0.74 to 1.72; p = 0.57). CONCLUSIONS: Our results suggest that statin therapy may confer no significant benefits in patients with HF undergoing PCI. However, prospective randomised controlled trials are needed to provide more definitive answers. PMID- 29349645 TI - The Incidence and the Prognostic Impact of Acute Kidney Injury in Acute Myocardial Infarction Patients: Current Preventive Strategies. AB - Acute kidney injury (AKI) is one of the most common complications during hospitalization in various clinical settings. The goal of this review was to assess the incidence of AKI in acute myocardial infarction patients (AMI), how this incidence is affected by the diverse definitions, and if there is variability in the reported rates over recent years. Additionally, we sought to appraise the impact of AKI on short- and long-term prognosis of these patients. Finally, we report on the current preventive measures as they are suggested in the current guidelines of various societies, we comment on the evidence that support them, and we review the literature for other proposed therapeutic strategies, which either failed to prove their efficacy or they are not adequately confirmed yet. Due to the heterogeneity in AKI definition and in the population studied of the published data, the incidence of AKI ranged from 5.2 to 59%. A recent meta-analysis reported a median value of 15.8%. All studies assessing AKI-related prognosis in AMI patients suggested that presence of AKI has detrimental effect on patients prognosis, raising mortality two- to threefold not only during the 30 first days but also during the first year after the acute event. Various treatment modalities have been proposed for prevention of AKI in AMI patients; however, the majority of them failed to prove their efficacy in the clinical trial arena. Hydration, use of iso- or low-osmolar agents at the lowest possible dose during coronary interventions, and use of statins have been proposed among others. Nonetheless, the prevalence of AKI after an AMI still remains high today and therefore it is crucial for the practicing physician to be aware of its presence and for the scientific community to identify novel measures for a more efficacious prevention. PMID- 29349648 TI - Establishment of a Monosomy 7 Leukemia Cell Line, MONO-7, With aras Gene Mutation. AB - A monosomy 7 leukemia cell line, designated MONO-7, was established from the peripheral blood of a patient with monosomy 7 acute myelocytic leukemia (French American-British classification M0). The cells were cultured continuously for more than 24 months in RPMI-1640 medium supplemented with 10% heat-inactivated fetal calf serum. The cell line exhibits an unclassified appearance. Cytochemically, alpha-naphthol-acetate esterase and myeloperoxidase are negative. Immunophenotypi-cally, the cell line expresses CD33, CD13, CD56, CD34, CD38, HLA DR, and CD45, but lacks T and B cell-associated antigens. Karyotypic analysis of the cell line showed only 45,XY,-7. Analysis of the N-ras gene mutation demonstrated identical mutations in fresh leukemic cells and the MONO-7 cell line. Clonal rearrangements of the immunoglobulin heavy-chain gene, T-cell receptor beta-chain gene, or T-cell receptor gamma-chain gene were not found in DNA extracted from MONO-7 cells. The growth of MONO-7 cells in vitro was stimulated by recombinant human granulocyte-macrophage colony-stimulating factor or interleukin 3. To our knowledge, this is the first report of the establishment of a cell line with the karyotype 45,XY,-7 with-out any other abnormality and with a ras gene mutation. PMID- 29349647 TI - Behaviour of freshwater snails (Radix balthica) exposed to the pharmaceutical sertraline under simulated predation risk. AB - Due to their potential for affecting the modulation of behaviour, effects of selective serotonin reuptake inhibitors (SSRIs) in the environment are particularly interesting regarding interspecies interactions and non-consumptive effects (NCEs) induced by predator cues in prey organisms. We evaluated the effects of sertraline (0.4, 40 ng/L, 40 ug/L) over 8 days on activity and habitat choice in the freshwater snail Radix balthica, on snails' boldness in response to mechanical stimulation (simulating predator attack), and their activity/habitat choice in response to chemical cues from predatory fish. We hypothesised that sertraline exposure would detrimentally impact NCEs elicited by predator cues, increasing predation risk. Although there were no effects of sertraline on NCEs, there were observed effects of chemical cue from predatory fish on snail behaviour independent of sertraline exposure. Snails reduced their activity in which the percentage of active snails decreased by almost 50% after exposure to fish cue. Additionally, snails changed their habitat use by moving away from open (exposed) areas. The general lack of effects of sertraline on snails' activity and other behaviours in this study is interesting considering that other SSRIs have been shown to induce changes in gastropod behaviour. This raises questions on the modes of action of various SSRIs in gastropods, as well as the potential for a trophic "mismatch" of effects between fish predators and snail prey in aquatic systems. PMID- 29349649 TI - Structure-activity relationships of flavanones, flavanone glycosides, and flavones in anti-degranulation activity in rat basophilic leukemia RBL-2H3 cells. AB - The incidence of type I allergies, which are associated with mast cell degranulation and local inflammation, is increasing, and new treatments are needed. To date, structure-activity relationships of flavonoids in their degranulation-inhibiting activity have not been systematically characterized. In the current study, the degranulation-inhibiting activity of a series of flavonoids was evaluated. The following three observations were made: (1) the activity disappears when a sugar moiety is introduced into the A ring of the flavanone; (2) the activity depends on the number of hydroxyl groups on the B ring; (3) the activity is markedly enhanced when a double bond is introduced into the C ring. The information obtained in the current study may guide the development of a therapy for type I allergies. PMID- 29349652 TI - Social Factors Associated with Non-initiation and Cessation of Predominant Breastfeeding in a Mother-Child Cohort in Spain. AB - Objective The aim of the study was to identify factors associated with non initiation and cessation of predominant breastfeeding (PBF) in a mother-child cohort from Spain. Materials and Methods The analysis included 2195 mother-infant from birth to 14 months post- delivery recruited between 2004 and 2008. Maternal characteristics were collected during the pregnancy. Lactation data were obtained at 6 and 14 months after delivery. PBF was defined as intake of breast milk plus liquids like juices or water. The PBF cessation was calculated using the date that women started PBF and the date that she reported to start giving infant formula and/or food. The relationship between maternal variables and PBF initiation and cessation was modeled using logistic and Cox proportional hazards regression analysis. Results The prevalence of PBF at hospital discharge was 85.3, 53.4% at 3 months, 46.1% at 4 months and 7.2% at 6 month. Only two women continued PBF at 12 months and none at 14 months. The initiating of PBF was associated with higher levels of maternal education, being a first-time mother and worked in a non-manual occupation. Higher level of physical activity, not smoking and having a healthy BMI, were also positively associated with PBF initiation. PBF cessation was higher in young, obese women, who had had complications during the pregnancy, and who had lower levels of education and smoked. The employment status of women, in week 32 of pregnancy and also in month 14 post-delivery, determined likelihood of PBF cessation. Conclusions Healthier habits and education positively influenced PBF initiation and duration. Decrease in PBF duration rates in Spain can be interpreted in part as a consequence of women returning to work. PMID- 29349651 TI - Epidemiology of Head Injuries Focusing on Concussions in Team Contact Sports: A Systematic Review. AB - BACKGROUND: Although injuries to the head represent a small proportion of all sport injuries, they are of great concern due to their potential long-term consequences, which are even suspected in mild traumatic brain injuries. OBJECTIVE: The aim of this review was to compare the incidence of concussions and other head injuries in elite level football, rugby, ice hockey and American Football. METHODS: Four electronic databases (CINAHL, PsycINFO, Web of Science, PubMed) were searched. Prospective cohort studies on the incidence of concussion in elite athletes aged 17 years or older that were published in an English language peer-reviewed journal since 2000 were included. Two authors independently evaluated study eligibility and quality. The extracted data on concussions were pooled in a meta-analysis using an inverse-variance fixed effects model. The extracted data on head injuries were reported in a narrative and tabular summary. RESULTS: The search yielded 7673 results of which 70 articles were included in the qualitative and 47 in the quantitative analysis. In our meta-analysis, we found the highest concussion incidences in rugby match play (3.89 and 3.00 concussions per 1000 h and athletic exposures (AEs), respectively), and the lowest in men's football training (0.01 and 0.08 per 1000 h and AEs, respectively). Overall, concussions and all head injuries were rare in training when compared to match play. Female players had an increased concussion risk in football and ice hockey when compared to male players. CONCLUSION: Future research should focus on concussion in women's contact sports, as there is little evidence available in this area. Methodological deficits are frequent in the current literature, especially regarding sample size and study power, and should be avoided. PMID- 29349653 TI - Exploring the Experiences of Middle Income Mothers in Practicing Exclusive Breastfeeding in Nairobi, Kenya. AB - Objectives To establish exclusive breastfeeding (EBF) practice, women are encouraged to initiate breastfeeding of their newborns within one hour of delivery and breastfeed exclusively for the first 6 months of the infant's life. Research in Kenya has shown evidence of a reduced rate of EBF with an increase in socio-economic class (SES). This study explores the experiences of middle-income women so as to understand their attitudes and practices of EBF and to contribute toward the Baby Friendly Hospital (BFHI) and Baby Friendly Community Initiatives (BFCI) programs in Kenya. Methods A qualitative study using nine in-depth interviews and two focus group discussions were conducted with middle-income women with a child < 2 years. Thematic content analysis was used to analyze the data. Results The majority of the women interviewed did not achieve EBF and this was attributed to many challenges that they encountered such as; inadequate workplace support including short maternity leave, lack of designated breast feeding facilities flexible hours and breastfeeding breaks. Support structures were highlighted as either inadequate or lacking while the internet was preferred by most of the women for breastfeeding information. Mass media was seen as more credible, though some women indicated that there was lack of depth in the information it provided. Conclusion The study showed that majority of women were unable to EBF for the first 6 months. Women experienced inadequate social, healthcare and workplace support and preferred online sites for information on breastfeeding than the healthcare professionals or mass media. Recommendation There is need to implement policies at the workplace that promote a breastfeeding friendly environment. There is also a need for more research on role of mass media in promotion of optimal breastfeeding practices, especially how to reach this population. There is a need for continued advocacy on social support including spousal, relatives, and other community members at the community level. PMID- 29349654 TI - The Role of Mentors in Early Intervention Referrals: Overlooked Views of Pediatric Residency Training Directors. AB - Objectives There continues to be a pressing need to increase referrals to family centered early intervention (EI) for more eligible infants and toddlers with inadequate consideration for the role of senior, mentoring professionals. Methods To address a dearth in our understanding, a subset of Pediatric Residency Training Directors shared views on EI, referral, and relevant training efforts. Results Participating directors primarily reported limited understanding of EI. Greater knowledge of family-focused EI correlated with its perceived helpfulness (r = .420; p = .021), which positively correlated with referring a child to EI. Despite 67% of the sample viewing pediatricians as 'most important' in screenings and EI referrals, residents were perceived as only somewhat aware of EI referral and services, and only somewhat aware of differences between clinic options and Part C EI. Although nearly all respondents noted minimal EI exposure during training, only 43% felt this amount was 'inadequate/insufficient'. The sample was fairly evenly divided in being 'extremely' or 'somewhat' interested in communicating with state EI leaders. Conclusions for Practice This preliminary analysis describes perceptions among senior medical professionals who may influence referrals via mentoring, training, and interdisciplinary collaboration. Findings inform next steps in terms of research, improving education for directors and residents, and collaborative information-sharing to bolster family centered EI referrals to improve child and family outcomes. PMID- 29349655 TI - Total body irradiation tremendously impair the proliferation, differentiation and chromosomal integrity of bone marrow-derived mesenchymal stromal stem cells. AB - Total body irradiation (TBI) is frequently used in hematopoietic stem cell transplantation (HSCT) and is associated with many complications due to radiation injury to the normal cells, including normal stem cells. Nevertheless, the effects of TBI on the mesenchymal stromal stem cell (MSC) are not fully understood. Bone marrow-derived MSCs (BM-MSCs) isolated from normal adults were irradiated with 200 cGy twice daily for consecutive 3 days, a regimen identical to that used in TBI-conditioning HSCT. The characteristics, differentiation potential, cytogenetics, hematopoiesis-supporting function, and carcinogenicity of the irradiated BM-MSCs were then compared to the non-irradiated control. The irradiated and non-irradiated MSCs shared similar morphology, phenotype, and hematopoiesis-supporting function. However, irradiated MSCs showed much lower proliferative and differentiative potential. Irradiation also induced clonal cytogenetic abnormalities of MSCs. Nevertheless, the carcinogenicity of irradiated MSCs is low in vitro and in vivo. In parallel with the ex vivo irradiation experiments, decreased proliferative and differentiative abilities and clonal cytogenetic abnormalities can also be found in MSCs isolated from transplant recipients who had received TBI-based conditioning previously. Thus, TBI used in HSCT drastically injury MSCs and may contribute to the development of some long-term complications associated with clonal cytogenetic abnormality and poor adipogenesis and osteogenesis after TBI. PMID- 29349656 TI - Correlations among multifocal electroretinography and optical coherence tomography findings in patients with Parkinson's disease. AB - To assess the correlation between functional and anatomical evaluations with multifocal electroretinography (mfERG) and spectral-domain optical coherence tomography (SD-OCT) in patients with Parkinson's disease (PD). This cross sectional study involved 116 eyes of 58 patients with PD and 30 age- and sex matched control subjects. All study participants underwent a comprehensive neuro ophthalmic examination, retinal single-layer thicknesses and volumes, and peripapillary retinal nerve fiber layer (pRNFL) measurements with SD-OCT, and the patients' mfERG recordings were evaluated. The macular retinal nerve fiber layer (mRNFL), ganglion cell layer (GCL), inner plexiform layer (IPL), outer nuclear layer (ONL), retinal pigment epithelium (RPE), and photoreceptor layer (PR) thicknesses, and mRNFL, RPE, and PR volumes were found lower in PD compared to those of controls, while outer plexiform layer (OPL) volumes were increased (p < 0.05). We found delayed implicit times and decreased amplitudes in the mfERG of PD patients versus those in control subjects (p < 0.05). We found significant correlations between outer macular volumes, PR thicknesses, and N1 amplitudes of rings 2 and 3and P1 amplitudes of rings 3, 4, and 5. Our study revealed thinning of both inner and outer retinal single layers, increased OPL volume, and delayed implicit times and decreased amplitudes in the mfERG of PD patients versus control subjects and correlation between structural and functional parameters. Our findings point out that SD-OCT and mfERG could both serve as non-invasive tools for evaluating ophthalmic manifestations of Parkinson's disease. PMID- 29349657 TI - Association between TBK1 mutations and risk of amyotrophic lateral sclerosis/frontotemporal dementia spectrum: a meta-analysis. AB - Recently, mutations in TBK1 (TANK-binding kinase 1) have been reported to be a cause of amyotrophic lateral sclerosis/frontotemporal dementia (ALS/FTD) spectrum, but the relationship between them remains unclear owing to the small sample size and low mutation rate. Therefore, we performed a two-stage meta analysis to investigate the frequency of TBK1 mutations in ALS/FTD patients and the association between the mutations and risk of ALS/FTD spectrum. In the first stage, 12 studies involving 4173 ALS/FTD patients were included. The frequencies of loss of function (LoF) and missense mutations were 1.0% (95% CI 0.6-1.7%) and 1.8% (95% CI 0.9-3.4%) in ALS/FTD patients respectively. Subgroup analysis suggested a higher prevalence of TBK1 mutations in European patients than that in Asian patients. In the second stage, 7 studies involving 3146 cases and 4856 controls were enrolled. Results showed that TBK1 LoF mutations were associated with a significant increased risk for ALS/FTD spectrum (OR 11.78; 95% CI 4.21 33.00; p < 0.0001), while TBK1 missense mutations were associated with a moderately increased susceptibility for ALS/FTD spectrum (OR 1.62; 95% CI 1.19 2.19; p = 0.002). In conclusion, TBK1 LoF and missense mutations are not frequently found in ALS/FTD patients, and both of them are associated with an increased risk for ALS/FTD spectrum. PMID- 29349658 TI - The IL-10-producing regulatory B cells (B10 cells) and regulatory T cell subsets in neuromyelitis optica spectrum disorder. AB - B cells contribute to the pathogenesis of neuromyelitis optica (NMO) by producing Aquaporin 4-specific autoantibodies (AQP4-ab); on the other hand, there are certain B cells that suppress immune responses by producing regulatory cytokines, such as IL-10. In this study, we investigated the presence of IL-10-producing Breg cells among lymphocyte subsets. Twenty-two seropositive NMO spectrum disorder (NMOSD) patients (29 samples) and 13 healthy controls (HCs) (14 samples) were enrolled. All NMOSD patients have received one or more immunosuppressive drugs. The phenotype and frequency of B cell and T cell subsets in the peripheral blood were measured by flow cytometry. We defined Breg cells as IL-10-producing B (B10) cells, which are CD19+CD39+CD1d+IL-10+. The potential relations were evaluated between specific lymphocyte subsets and AQP4-ab intensity measured by the cell-based indirect immunofluorescence assay. The frequency of B10 cells was higher in patients with NMOSD regardless of the disease status than that in HCs (attack samples; p = 0.009 and remission samples; p < 0.001, respectively). In addition, the frequency of IL-17+ Treg cells among Treg cells was higher during remission than during an attack (uncorrected p = 0.032). Among the lymphocyte subsets, B10 cells alone showed a positive correlation with the intensity of AQP4 ab positivity (rho [rho] = 0.402 and p = 0.031). It was suggested that the suppressive subsets including B10 and IL-17+ Treg cells might have important roles in controlling disease status in NMOSD. Further functional studies may help to elucidate the immunological role of B10 and IL-17+ Treg cells in NMOSD. PMID- 29349659 TI - [Self- and informant-rating mood scales applied in elderly persons with Alzheimer's dementia, with or without a language disorder]. AB - INTRODUCTION: Alzheimer's Dementia (AD) may be associated with symptoms of depression. In AD, problems of language expression or understanding will arise sooner or later. The aim of this study was to determine whether elderly persons with AD, with or without a language disorder, experience difficulties understanding and answering mood related questions. In addition to this, it was our object to test the validity of the answers of nurses as informants, on the mood of an elderly client. METHODS: 53 elderly persons, living in care homes, and their nurses, took part in the study. 25 participants had been diagnosed with Alzheimer's disease, 28 participants had no cognitive impairment. Language skills were tested using the SAN-test (Stichting Afasie Nederland) and subtests of the Aachen Aphasia Test (AAT). Mood was assessed with the Beck Depression Inventory second edition (BDI-II-NL) and the Geriatric Depression Scale (GDS-30). RESULTS: There were no significant differences in scores on the mood related questionnaires between participants without cognitive impairment and participants with Alzheimer's disease, with or without a language disorder. The correlation between self- and informant-rating was very limited. In general, nurses reported more depressive symptoms than the elderly persons did themselves. Disparities between self- and informant-ratings varied from informant scores overestimating low self-ratings of depression to informant scores underestimating high self ratings. CONCLUSION: Alzheimer's disease, whether or not it is complicated by a language disorder, does not disturb the normal score distribution on either test (BDI or GDS). This means that elderly persons with Alzheimer's disease are capable of adequately answering questions related to their own mood. However, considerable discrepancies were found between observer- and self-ratings of emotional wellbeing. Therefore it is important to not only take into account the information of an informant when testing for depression, but also the elderly person's own assessment of their mood. PMID- 29349660 TI - Progestogen Hypersensitivity. AB - PURPOSE OF REVIEW: Progestogen hypersensitivity (PH) is a rare disorder which usually occurs in women of childbearing age with symptoms ranging from urticaria with or without angioedema, multiple organ involvement consistent with allergic anaphylaxis, to a spectrum of other non-evanescent skin eruptions. In this review, we present a clinical vignette of PH and discuss the clinical presentation and proposed pathomechanisms, diagnosis, and treatment of PH. RECENT FINDINGS: The hypersensitivity symptoms are associated with exogenous progestin exposure (e.g., contraceptive medicines, in vitro fertilization therapy) or endogenous progesterone from progesterone surges during the luteal phase of the menstrual cycle and pregnancy. Recognition of this condition can be challenging to the clinician due to its heterogeneous clinical presentation. It has been recently proposed to use the new term "progestogen hypersensitivity" to replace "autoimmune progesterone dermatitis" due to the lack of evidence supporting an autoimmune mechanism for this disorder. In addition, diagnostic and treatment algorithms are now available that can lead to successful management of this condition. More new developments of Progesterone desensitization protocols are now available which appear to be the safest and most effective long-term treatment option for PH. With the extensive use of oral contraceptives and increased use of supra-physiologic doses of progesterone to support pregnancy in in vitro fertilization, there is likely to be a higher prevalence of PH in the future than currently recognized. Therefore, the allergist-immunologist will be required to collaborate with gynecologists and reproductive endocrinologists to diagnose and treat this condition. PMID- 29349661 TI - PKM2 is involved in neuropathic pain by regulating ERK and STAT3 activation in rat spinal cord. AB - BACKGROUND: Pyruvate kinase isozymes M2 (PKM2), as a member of pyruvate kinase family, plays a role of glycolytic enzyme in glucose metabolism. It also functions as protein kinase in cell proliferation, signaling, immunity, and gene transcription. In this study, the role of PKM2 in neuropathic pain induced by chronic constriction injury (CCI) was investigated. METHODS: Rats were randomly grouped to establish CCI models. PKM2, extracellular regulated protein kinases (EKR), p-ERK, signal transducers and activators of transcription (STAT3), p STAT3, phosphoinositide 3-kinase/protein kinase B (PI3K/AKT) and p-PI3K/AKT proteins expression in spinal cord was examined by Western blot analysis. Cellular location of PKM2 was examined by immunofluorescence. Knockdown of PKM2 was achieved by intrathecal injection of specific small interfering RNA (siRNA). Von Frey filaments and radiant heat tests were performed to determine mechanical allodynia and thermal hyperalgesia respectively. Lactate and adenosine triphosphate (ATP) contents were measured by specific kits. Tumor necrosis factor alpha (TNF-alpha) and interleukin-1 beta (IL-1beta) levels were detected by ELISA kits. RESULTS: CCI markedly increased PKM2 level in rat spinal cord. Double immunofluorescent staining showed that PKM2 co-localized with neuron, astrocyte, and microglia. Intrathecal injection of PKM2 siRNA not only attenuated CCI induced ERK and STAT3 activation, but also attenuated mechanical allodynia and thermal hyperalgesia induced by CCI. However, PKM2 siRNA failed to inhibit the activation of AKT. In addition, PKM2 siRNA significantly suppressed the production of lactate and pro-inflammatory mediators. CONCLUSION: Our findings demonstrate that inhibiting PKM2 expression effectively attenuates CCI-induced neuropathic pain and inflammatory responses in rats, possibly through regulating ERK and STAT3 signaling pathway. PMID- 29349663 TI - Ibandronate metal complexes: solution behavior and antiparasitic activity. AB - To face the high costs of developing new drugs, researchers in both industry and academy are looking for ways to repurpose old drugs for new uses. In this sense, bisphosphonates that are clinically used for bone diseases have been studied as agents against Trypanosoma cruzi, causative parasite of Chagas disease. In this work, the development of first row transition metal complexes (M = Co2+, Mn2+, Ni2+) with the bisphosphonate ibandronate (iba, H4iba representing the neutral form) is presented. The in-solution behavior of the systems containing iba and the selected 3d metal ions was studied by potentiometry. Mononuclear complexes [M(Hxiba)](2-x)- (x = 0-3) and [M(Hiba)2]4- together with the formation of the neutral polynuclear species [M2iba] and [M3(Hiba)2] were detected for all studied systems. In the solid state, complexes of the formula [M3(Hiba)2(H2O)4].6H2O were obtained and characterized. All obtained complexes, forming [M(Hiba)]- species under the conditions of the biological studies, were more active against the amastigote form of T. cruzi than the free iba, showing no toxicity in mammalian Vero cells. In addition, the same complexes were selective inhibitors of the parasitic farnesyl diphosphate synthase (FPPS) enzyme showing poor inhibition of the human one. However, the increase of the anti-T. cruzi activity upon coordination could not be explained neither through the inhibition of TcFPPS nor through the inhibition of TcSPPS (T. cruzi solanesyl-diphosphate synthase). The ability of the obtained metal complexes of catalyzing the generation of free radical species in the parasite could explain the observed anti-T. cruzi activity. PMID- 29349664 TI - Sparse Functional Identification of Complex Cells from Spike Times and the Decoding of Visual Stimuli. AB - We investigate the sparse functional identification of complex cells and the decoding of spatio-temporal visual stimuli encoded by an ensemble of complex cells. The reconstruction algorithm is formulated as a rank minimization problem that significantly reduces the number of sampling measurements (spikes) required for decoding. We also establish the duality between sparse decoding and functional identification and provide algorithms for identification of low-rank dendritic stimulus processors. The duality enables us to efficiently evaluate our functional identification algorithms by reconstructing novel stimuli in the input space. Finally, we demonstrate that our identification algorithms substantially outperform the generalized quadratic model, the nonlinear input model, and the widely used spike-triggered covariance algorithm. PMID- 29349662 TI - Roles and maturation of iron-sulfur proteins in plastids. AB - One reason why iron is an essential element for most organisms is its presence in prosthetic groups such as hemes or iron-sulfur (Fe-S) clusters, which are notably required for electron transfer reactions. As an organelle with an intense metabolism in plants, chloroplast relies on many Fe-S proteins. This includes those present in the electron transfer chain which will be, in fact, essential for most other metabolic processes occurring in chloroplasts, e.g., carbon fixation, nitrogen and sulfur assimilation, pigment, amino acid, and vitamin biosynthetic pathways to cite only a few examples. The maturation of these Fe-S proteins requires a complex and specific machinery named SUF (sulfur mobilisation). The assembly process can be split in two major steps, (1) the de novo assembly on scaffold proteins which requires ATP, iron and sulfur atoms, electrons, and thus the concerted action of several proteins forming early acting assembly complexes, and (2) the transfer of the preformed Fe-S cluster to client proteins using a set of late-acting maturation factors. Similar machineries, having in common these basic principles, are present in the cytosol and in mitochondria. This review focuses on the currently known molecular details concerning the assembly and roles of Fe-S proteins in plastids. PMID- 29349665 TI - Following the correction of varus deformity of the knee through total knee arthroplasty, significant compensatory changes occur not only at the ankle and subtalar joint, but also at the foot. AB - PURPOSE: This study aimed to assess radiological changes of the ankle joint, subtalar joint and foot following the correction of varus deformity of the knee with total knee arthroplasty (TKA). It was hypothesized that following the correction of varus deformity by TKA, compensatory reactions would occur at the subtalar joint in accordance with the extent of the correction. METHODS: For this prospective study, 375 knees of patients who underwent TKA between 2011 and 2012 were enrolled. The varus angle of the knee, talar tilt of the ankle joint (TT), ground-talar dome angle of the foot (GD), anterior surface angle of the distal tibia and lateral surface angle of the distal tibia, heel alignment ratio (HR), heel alignment angle (HA), and heel alignment distance (HD) were measured on radiographs obtained pre-operatively and at post-operative 6 months. RESULTS: The mean correction angle in varus deformity of the knee was 10.8 +/- 4.1 degrees . TT and GD changed significantly from 0.4 +/- 1.9 degrees and 6.5 +/- 3.1 degrees pre-operatively to 0.1 +/- 1.8 degrees and 0.2 +/- 2.1 degrees , respectively (p = 0.007, p < 0.001). No correlation was found between the preop-postop variance in mechanical axis of the lower extremity (MA) and TT, but there was a strong correlation between the preop-postop variance in MA and GD (r = 0.701). HR, HA and HD also changed significantly post-operatively, and the preop-postop variance in MA showed correlations with the preop-postop variances in HR, HA and HD (r = 0.206, - 0.348, and - 0.418). TT and the three indicators of hindfoot alignment all shifted to varus whereas GD was oriented in valgus. CONCLUSION: Following the correction of varus deformity of the knee through TKA, significant compensatory changes occurred not only at the ankle and subtalar joints, but also at the foot. The findings of this study are useful in predicting the orientation of changes in the ankle and subtalar joints and the foot following TKA, and in determining the sequence of surgery when both the ankle and knee have a problem. In other words, changes in the parts of the lower extremity below the ankle joint following the correction of varus deformity of the knee must be considered when TKA is planned and performed. Patients who have problems at the ankle, subtalar, and foot joints in addition to varus deformity of the knee are recommended to undergo knee joint correction first. LEVEL OF EVIDENCE: II. PMID- 29349666 TI - New Frontiers in Cancer Therapy: Monoclonal Antibody Therapy of Hematologic Malignancies. PMID- 29349667 TI - Comparison of Enalapril, Candesartan and Intralesional Triamcinolone in Reducing Hypertrophic Scar Development: An Experimental Study. AB - BACKGROUND: The purpose of this study was to compare the effects of oral enalapril, an angiotensin-converting enzyme inhibitor (ACE-I), oral candesartan, an angiotensin receptor blocker (ARB), and intralesional corticosteroid treatments in reducing scar formation. METHODS: Twenty male rabbits were divided into five study groups: A (sham), B (control), C (ACE-I), D (ARB) and E (intralesional corticosteroid). The rabbit ear hypertrophic scar model was used. The hypertrophic scars were photographed and analyzed with the program ImageJ quantitatively to determine the degree of collagen fibers. The scar elevation index (SEI) was calculated at the end of the 40th day. Tissue samples were stained with hematoxylin and eosin and Masson's trichrome and examined under light microscopy for the determination of fibroblast number, epithelization, vascularization, inflammation and fibrosis. RESULTS: The SEI was the highest in the control group with the highest number of fibroblasts under the epithelium. In the steroid group, the SEI was significantly lower than both the ACE-I (p: 0.02) and ARB (p: 0.001) groups. The density of type 1 collagen fibers was the lowest in the control group, whereas type 3 collagen fibers were highest in that group. The ACE-I and ARB groups were similar regarding densities of type 1 and type 3 collagen fibers. The density of type 1 collagen fibers was the highest in the steroid group, whereas the density of type 3 collagen fibers was the lowest in that group. CONCLUSIONS: Enalapril, candesartan and intralesional steroid therapies were all effective in reducing scar tissue development; however, enalapril and steroid groups revealed better results. NO LEVEL ASSIGNED: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 . PMID- 29349668 TI - Serum MMP-9 Diagnostics, Prognostics, and Activation in Acute Coronary Syndrome and Its Recurrence. AB - Matrix metalloproteinase (MMP)-9 is crucial in atherosclerotic plaque rupture and tissue remodeling after a cardiac event. The balance between MMP-9 and endogenous inhibitor, tissue inhibitors of matrix metalloproteinase 1 (TIMP-1), is important in acute coronary syndrome (ACS). This is an age- and gender-matched case-control study of ACS (N = 669). Patients (45.7%) were resampled after recovery, and all were followed up for 6 years. The molecular forms of MMP-9 were investigated by gelatin zymography. Diagnostically, MMP-9 and the MMP-9/TIMP-1 molar ratio were associated with ACS (OR 5.81, 95% CI 2.65-12.76, and 4.96, 2.37-10.38). The MMP-9 concentrations decreased 49% during recovery (p < 0.001). The largest decrease of these biomarkers between acute and recovery phase (DeltaMMP-9) protected the patients from major adverse cardiac events, especially the non-fatal events. The fatal events were associated with in vitro activatable MMP-9 levels (p = 0.028). Serum MMP-9 and the MMP-9/TIMP-1 molar ratio may be valuable in ACS diagnosis and prognosis. High serum MMP-9 activation potential is associated with poor cardiovascular outcome. PMID- 29349669 TI - Positive Correlation between Matrix Metalloproteinases and Epithelial-to Mesenchymal Transition and its Association with Clinical Outcome in Bladder Cancer Patients. AB - Involvement of matrix metalloproteinases (MMPs) in the pathogenesis of urothelial carcinoma elects them to be sensitive marker for clinical and prognostic implications. MMPs regulate tumor growth and invasion by inducing epithelial-to mesenchymal transition (EMT) which is characterized by the complex reprogramming of epithelial cells and ultimately bring about major changes in the structural organization of bladder urothelium. The present study has been undertaken to evaluate the clinical relevance of MMPs in two distinct types of bladder cancer disease. Expression analysis of MMPs namely MMP-2, MMP-7, MMP-9 and EMT markers including epithelial marker, E-cadherin; mesenchymal markers, N-cadherin and Vimentin; and EMT-activating transcriptional factors (EMT-ATFs), Snail, Slug, Twist and Zeb was done in 64 cases of bladder tumor tissues [{Non-muscle invasive bladder cancer (NMIBC): 35 cases} and {Muscle invasive bladder cancer (MIBC): 29 cases}] by real-time quantitative polymerase chain reaction (RT-qPCR). Immunohistochemistry (IHC) staining was done in matched bladder tumor tissues to evaluate the protein expression and localization of E-cadherin, N-cadherin, Vimentin, Snail, and Slug. Our data showed overexpression of MMP-2, MMP-7 and MMP 9 at transcriptome level in 32.8%, 25% and 37.5% bladder tumor cases respectively. These tumor tissues were examined for higher expression of mesenchymal markers (N-cadherin and Vimentin) at mRNA and protein level and exhibited statistical association with tumor stage and tumor grade (p = 0.02, p = 0.04, Mann-Whitney test). Significant statistical correlation in tumor tissues with overexpressed MMPs has also been observed between gain of transcriptional factors and weak expression of E-cadherin with tumor stage, grade, gender, presence of hematuria and smoking history of the patients. Gene expression patterns of EMT markers in bladder tumors with overexpressed MMPs and their significant association with clinical profile validate the important role of MMPs in the pathogenesis of urothelial carcinoma of bladder (UCB). Increased expression of specific MMPs may affect several downstream EMT programs and thus may improve its diagnostic and prognostic utility in clinical setting. PMID- 29349670 TI - Working (longer than) 9 to 5: are there cardiometabolic health risks for young Australian workers who report longer than 38-h working weeks? AB - PURPOSE: The average Australian working week in middle-aged and older workers exceeds government recommendations. Long working weeks are associated with poor health outcomes; however, the relationship between long working weeks and health in young Australian workers is unknown. METHODS: Data were drawn from the 22-year follow-up of the Western Australian Pregnancy Cohort (Raine) Study in Perth, Western Australia. Information was available from 873 young adults about working hours per week, shift work and sleep duration. Blood samples provided measures of cardiometabolic risk (CMR) factors. RESULTS: Almost one-third (32.8%) of young workers reported > 38 h working weeks. This was commonly reported in mining and construction industries for males; health and social assistance, mining and retail trade industries for females. CMR factors including increased waist circumference, higher fasting plasma glucose and reduced HDL cholesterol were associated with > 38 h working weeks. These relationships were not moderated by gender or by BMI for glucose and HDL cholesterol. Total sleep time was significantly lower in both male and female workers reporting > 38 h working weeks, but did not mediate the relationships seen with CMR factors. CONCLUSIONS: These findings point to early associations between > 38 h working weeks and CMR risk, and highlight the potential benefit of making young employees aware of the health associations with working arrangements to reduce the longer-term relationships seen with working hours and poor cardiometabolic health in population studies. PMID- 29349671 TI - Is Older Age Associated with Higher Self- and Other-Rated ASD Characteristics? AB - Autism spectrum disorder (ASD) characteristics seem to abate over time, but whether this protracts until late adulthood is largely unknown. We cross sectionally investigated self- and other-reported ASD characteristics of adults with (ASD: Nmax-self = 237, Nmax-other = 130) and without ASD (COM: Nmax-self = 198, Nmax-other = 148) aged 19-79 years. Within the ASD group, self-reported ASD characteristics, and sensory sensitivities were highest in middle adulthood, while age was not associated to empathy. Sex differences were also found. However, age-and sex-related differences were not revealed by others and self- and other-report were poorly concordant. These results show that ASD characteristics in adulthood are differently perceived across age, sex, and informants and suggest that it is important to repeatedly assess self-reported ASD characteristics during adulthood. PMID- 29349672 TI - STA-ACA bypass using the ipsilateral free STA graft as an interposition graft and A3-A3 anastomosis for treatment of bilateral ACA steno-occlusive ischemia. AB - BACKGROUND: Anterior cerebral artery (ACA)-related ischemia is a rare entity in patients with atherosclerosis. Some surgical treatments are reported to date. METHOD: We present the modification of intracranial-intracranial and intracranial extracranial bypasses for symptomatic bilateral ACA steno-occlusive disease. The A3-A3 bypass followed by the superficial temporal artery-ACA bypass using the ipsilateral free superficial temporal artery graft is useful without harvesting of the radial artery. CONCLUSION: Bilateral ACA steno-occlusive induced ischemia can be treated with tailored bypass procedures. PMID- 29349673 TI - Pharmacological dissection of the cellular mechanisms associated to the spontaneous and the mechanically stimulated ATP release by mesentery endothelial cells: roles of thrombin and TRPV. AB - Endothelial cells participate in extracellular ATP release elicited by mechanosensors. To characterize the dynamic interactions between mechanical and chemical factors that modulate ATP secretion by the endothelium, we assessed and compared the mechanisms participating in the spontaneous (basal) and mechanically stimulated secretion using primary cultures of rat mesentery endothelial cells. ATP/metabolites were determined in the cell media prior to (basal) and after cell media displacement or a picospritzer buffer puff used as mechanical stimuli. Mechanical stimulation increased extracellular ATP that peaked within 1 min, and decayed to basal values in 10 min. Interruption of the vesicular transport route consistently blocked the spontaneous ATP secretion. Cells maintained in media lacking external Ca2+ elicited a spontaneous rise of extracellular ATP and adenosine, but failed to elicit a further extracellular ATP secretion following mechanical stimulation. 2-APB, a TRPV agonist, increased the spontaneous ATP secretion, but reduced the mechanical stimulation-induced nucleotide release. Pannexin1 or connexin blockers and gadolinium, a Piezo1 blocker, reduced the mechanically induced ATP release without altering spontaneous nucleotide levels. Moreover, thrombin or related agonists increased extracellular ATP secretion elicited by mechanical stimulation, without modifying spontaneous release. In sum, present results allow inferring that the spontaneous, extracellular nucleotide secretion is essentially mediated by ATP containing vesicles, while the mechanically induced secretion occurs essentially by connexin or pannexin1 hemichannel ATP transport, a finding fully supported by results from Panx1-/- rodents. Only the latter component is modulated by thrombin and related receptor agonists, highlighting a novel endothelium-smooth muscle signaling role of this anticoagulant. PMID- 29349675 TI - Saphenous vein graft percutaneous coronary intervention : A different kind of animal. PMID- 29349674 TI - Extracorporeal life support in cardiogenic shock: indications and management in current practice. AB - Veno-arterial extracorporeal life support (VA-ECLS) provides circulatory and respiratory stabilisation in patients with severe refractory cardiogenic shock. Although randomised controlled trials are lacking, the use of VA-ECLS is increasing and observational studies repeatedly have shown treatment benefits in well-selected patients. Current clinical challenges in VA-ECLS relate to optimal management of the individual patient on extracorporeal support given its inherent complexity. In this review article we will discuss indications, daily clinical management and complications of VA-ECLS in cardiogenic shock refractory to conventional treatment strategies. PMID- 29349676 TI - Environment-Friendly Synthesis of Trace Element Zn, Sr, and F Codoping Hydroxyapatite with Non-cytotoxicity and Improved Osteoblast Proliferation and Differentiation. AB - Hydroxyapatite (HAp, Ca10[PO4]6[OH]2) doped with numerous trace elements possesses sensational biochemical effects in natural bones. To study the biochemical function of Zn, Sr, and F elements, a series of neoteric HAp biomaterials with Zn, Sr, and F concentrations close to natural bones are firstly synthesized by one-pot hydrothermal method. These materials are characterized through powder X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM). All the synthesized materials are HAp phase. The morphology of these materials is nanorods. The phenomenon that L929 cells can live even at 400 MUg/mL powder concentration indicates that these materials are non-cytotoxic. The active effects of samples on proliferation and differentiation of osteoblast cells (MC3T3-E1) are certified by MTT and alkaline phosphatase (ALP) activity assays. The adhesion and proliferation of osteoblast measurement manifest that amounts of MC3T3-E1 advances about 1.86 times for ZnSrF/HAp compared with undoped HAp. This achievement may inspire us on the artificial design of new-style bionic bone grafts using trace bioactive elements and also suggest its latent applications in orthopedic surgery and bone osseointegration. PMID- 29349678 TI - Hughes Syndrome: Antiphospholipid Syndrome. PMID- 29349677 TI - Mercuric Chloride Induced Ovarian Oxidative Stress by Suppressing Nrf2-Keap1 Signal Pathway and its Downstream Genes in Laying Hens. AB - The present study evaluated the effects of mercury chloride (HgCl2) on follicular atresia rate, sex hormone secretion, and ovarian oxidative stress in laying hens. Antioxidant enzyme genes and the nuclear factor erythroid 2-related factor 2 (Nrf2)-Kelch-like ECH-associated protein 1 (Keap1) signal pathway were further studied to uncover the molecular mechanism. A total of 768 40-week-old Hy-Line Brown laying hens were randomly allocated to four treatments with eight pens per treatment and 24 hens of each pen. The birds were fed with four experimental diets containing graded levels of mercury (Hg) at 0.280, 3.325, 9.415, and 27.240 mg/kg, respectively. Results revealed that a positive relationship occurred between the accumulation of Hg in ovary and follicular atresia rate. Progesterone (P4) level significantly decreased in all Hg-treatment groups (P < 0.05), and follicle-stimulating hormone (FSH) and luteinizing hormone (LH) levels were the lowest in the 27.240-mg/kg Hg group. Besides, the activities of catalase (CAT), superoxidative dismutase (SOD), glutathione reductase (GR), and glutathione (GSH) content were significantly decreased in all Hg-treatment groups (P < 0.05). Glutathione peroxidase (GSH-Px) activity significantly decreased, while malondialdehyde (MDA) content sharply increased in the 27.240-mg/kg Hg group (P < 0.05). In addition, there were positive relationships between antioxidant enzyme activities and antioxidant gene expressions or between antioxidant gene expressions and Nrf2 mRNA expression, while negative correlations occurred between Nrf2 and Keap1 at transcription and protein levels. It could be concluded that Hg induced ovarian function disorders and ovarian oxidative stress by means of impairing the Nrf2-Keap1 signal pathway in laying hens. PMID- 29349679 TI - Autoimmune encephalitis associated with glutamic acid decarboxylase antibodies: a case series. AB - Antibodies against glutamic acid decarboxylase (GAD) are associated with various neurologic conditions described in patients including stiff person syndrome, cerebellar ataxia, refractory epilepsy, limbic and extralimbic encephalitis. GAD antibodies-related limbic encephalitis cases are well described; reports of extralimbic involvement are limited. We describe four cases of GAD antibody related autoimmune encephalitis. Three of them had extralimbic involvement and only one had limbic encephalitis. PMID- 29349680 TI - Ultrasound evaluation of the airway in the ED: a feasibility study. AB - BACKGROUND: Recognition of the difficult airway is a critical element of emergency practice. Mallampati score and body mass index (BMI) are not always predictive and they may be unavailable in critically ill patients. Ultrasonography provides high-resolution images that are rapidly obtainable, mobile, and non-invasive. Studies have shown correlation of ultrasound measurements with difficult laryngoscopy; however, none have been performed in the Emergency Department (ED) using a consistent scanning protocol. OBJECTIVES: This study seeks to determine the feasibility of ultrasound measurements of the upper airway performed in the ED by emergency physicians, the inter-rater reliability of such measurements, and their relationship with Mallampati score and BMI. METHODS: A convenience sample of volunteer ED patients and healthy volunteers with no known airway issues, aged > 18 years, had images taken of their airway using a standardized ultrasound scanning protocol by two EM ultrasound fellowship trained physicians. Measurements consisted of tongue base, tongue base-to-skin, epiglottic width and thickness, and pre-epiglottic space. Mean and standard deviation (SD) were used to summarize measurements. Inter-rater reliability was assessed by intraclass correlation coefficients (ICCs). Analysis of variance with linear contrasts was used to compare measurements with Mallampati scores and linear regression with BMI. RESULTS: Of 39 participants, 50% were female, 50% white, 42% black, with median age 32.5 years (range 19-90), and BMI 26.0 (range 19-47). Mean +/- SD for each measurement (mm) was as follows: tongue base (44.6 +/- 5.1), tongue base-to-skin (60.9 +/- 5.3), epiglottic width (15.0 +/- 2.8) and thickness (2.0 +/- 0.37), and pre-epiglottic space (11.4 +/- 2.4). ICCs ranged from 0.76 to 0.88 for all measurements except epiglottis thickness (ICC = 0.57). Tongue base and tongue base-to-skin thickness were found to increase with increasing Mallampati score (p = .04, .01), whereas only tongue to-skin thickness was loosely correlated with BMI (r = .38). CONCLUSIONS: A standardized ultrasound scanning protocol demonstrates that the airway can be measured by emergency sonologists with good inter-operator reliability in all but epiglottic thickness. The measurements correlate with Mallampati score but not with BMI. Future investigation might focus on ultrasound evaluation of the airway in patients receiving airway management to determine whether ultrasound can predict challenging or abnormal airway anatomy prior to laryngoscopy. PMID- 29349681 TI - Erratum to: Functional Analysis of Membrane Proteins Produced by Cell-Free Translation. PMID- 29349682 TI - Managing Obesity in Primary Care: Breaking Down the Barriers. AB - : Several Australian obesity management guidelines have been developed for general practice but, to date, implementation of these guidelines has been shown to be inadequate. In this review, we explore the barriers to obesity treatment and propose a four-stage plan to manage individuals with obesity in general practice using a framework of a multidisciplinary team. FUNDING: Novo Nordisk. PMID- 29349683 TI - Plantamajoside Inhibits Lipopolysaccharide-Induced MUC5AC Expression and Inflammation through Suppressing the PI3K/Akt and NF-kappaB Signaling Pathways in Human Airway Epithelial Cells. AB - It has been reported that plantamajoside (PMS), a major natural compound isolated from Plantago asiatica, has anti-inflammatory activities. However, the effect of PMS on respiratory inflammatory diseases has not yet been studied. The present study aimed to evaluate the effect of PMS on lipopolysaccharide (LPS)-induced airway inflammation and the underlying mechanism. The results showed that PMS did not affect the cell viability of 16-HBE cells. PMS (20 and 40 MUg/ml) decreased the expression levels of MUC5AC, IL-6, and IL-1beta, which were induced by LPS treatment. PMS inhibited the LPS-induced phosphorylation of Akt and p65. In addition, inhibitors of the PI3K/Akt and NF-kappaB pathways attenuated the effect of LPS on 16-HBE cells. In conclusion, PMS inhibits LPS-induced MUC5AC expression and inflammation through suppressing the PI3K/Akt and NF-kappaB signaling pathways, indicating that PMS may be a potential therapy for the treatment of respiratory inflammatory diseases. PMID- 29349684 TI - Fcgamma Receptor Signaling in Phagocytes. AB - Fcgamma receptors are among the best-studied phagocytic receptors. The key features of Fcgamma receptor-mediated phagocytosis include phagocytic cup formation by extensive actin cytoskeletal rearrangements, particle engulfment, and the release of proinflammatory mediators such as cytokines and reactive oxygen species. These events are elegantly regulated by the simultaneous engagement of activating and inhibitory Fcgamma receptors and by intracellular signaling molecules. Extensive studies in the past several years have defined the molecular mechanisms of the phagocytic process. The purpose of this review is to revisit some of the well-established signaling pathways as well as to summarize the new findings in this field. PMID- 29349686 TI - Two-year results after coronary stenting of small vessels in Japanese population using 2.25-mm diameter sirolimus-eluting stent with bioresorbable polymer: primary and long-term outcomes of CENTURY JSV study. AB - : Percutaneous coronary intervention (PCI) in coronary artery disease (CAD) with very small vessels remains challenging. The aim of this study is to evaluate the safety and effectiveness of the 2.25-mm diameter Ultimaster sirolimus-eluting stent in the treatment of Japanese patients with CAD due to lesions in very small vessels. The CENTURY JSV study is a prospective, multicentre, single-arm study. Seventy patients with lesions deemed suitable for implantation of a 2.25-mm diameter stent were enrolled at seven hospitals in Japan. Patients underwent clinical follow-up at 1-, 9-month, 1-, and 2-year after the PCI procedure. The primary endpoint was the major adverse cardiac event (MACE), a composite of cardiac death, target vessel myocardial infarction (MI), and clinically driven target lesion revascularization (TLR) free rate at 9-month following the procedure. The MACE-free rate was 97.1%, and the lower limit of the two-sided 95% confidence interval (CI) was 90.1%, which exceeded the threshold of 80% set as the performance goal. Angiographic in-stent and in-segment late loss at 9-month were 0.22 +/- 0.31 and - 0.02 +/- 0.34 mm, respectively. Between 9 months and 2 years, two additional TLRs occurred. Stent thrombosis, bleeding and vascular complication did not occur throughout 2 years. The 2.25-mm diameter Ultimaster(r) bioresorbable-polymer sirolimus-eluting stent is safe and effective for treating lesions in very small coronary arteries throughout 2 years after stent implantation. CLINICAL TRIAL REGISTRATION: UMIN000012928. PMID- 29349685 TI - Solute Transport in the Bone Lacunar-Canalicular System (LCS). AB - PURPOSE OF REVIEW: Solute transport in the lacunar-canalicular system (LCS) plays important roles in osteocyte metabolism and cell-cell signaling. This review will summarize recent studies that establish pericellular matrix (PCM), discovered inside the LCS, as a crucial regulator of solute transport in bone. RECENT FINDINGS: Utilizing confocal imaging and mathematical modeling, recent studies successfully quantified molecular diffusion and convection in the LCS as well as the size-dependent sieving effects of the PCM, leading to the quantification of the effective PCM fiber spacing (10 to 17 nm) in murine adult bones. Perlecan/HSPG2, a large linear proteoglycan, was identified to be an essential PCM component. The PCM-filled LCS is bone's chromatographic column, where fluid/solute transport to and from the osteocytes is regulated. The chemical composition, deposition rate, and turnover rate of the osteocyte PCM should be further defined to better understand osteocyte physiology and bone metabolism. PMID- 29349687 TI - Adjunct and rescue therapies for refractory hypoxemia: prone position, inhaled nitric oxide, high frequency oscillation, extra corporeal life support. PMID- 29349688 TI - Immunoglobulins and sepsis. PMID- 29349689 TI - Suspended in time and space. PMID- 29349690 TI - Transthoracic cardiac ultrasound in prone position: a technique variation description. PMID- 29349691 TI - Subtle trajectories. PMID- 29349692 TI - Ascites Due to Constrictive Pericardial Disease Not Appreciated on Echocardiogram: A Report of Three Cases. PMID- 29349693 TI - Anti-Tumor Necrosis Factor-alpha-Induced Dermatological Complications in a Large Cohort of Inflammatory Bowel Disease Patients. AB - BACKGROUND/AIMS: The broader use of anti-tumor necrosis factor (TNF) agents in inflammatory bowel disease (IBD) has been associated with a high rate of adverse reactions. Dermatological complications are among the most common adverse events. We assessed the incidence, risk factors, management, and outcome of anti-TNF induced dermatological complications in a large cohort of IBD patients. METHODS: This was an observational retrospective study at a single tertiary referral center. All consecutive adult IBD patients treated with anti-TNF agents between 2005 and 2015 were identified. Patients who developed at least one dermatological complication while on anti-TNF therapy were included. RESULTS: From the 732 patients treated with anti-TNF agents, 211 (29%) developed at least one dermatological complication: 52% women (mean age of 42 +/- 13 years), 85% with Crohn's disease, 67% were under infliximab. Median follow-up time under anti-TNF therapy was 53 (27-77) months. Dermatological complications recorded were: infections (13.5%), psoriasiform lesions (5.3%), injection/infusion reactions (3.8%), skin cancer (0.5%), and miscellaneous (5.6%). Overall, female gender (OR = 1.658, p = 0.029), smoking (OR = 2.021, p = 0.003), and treatment with an infliximab dose of 10 mg/kg (OR = 2.012, p = 0.007) were independent risk factors for dermatological complications in multivariable analysis. Female gender (OR = 3.63, p = 0.017), smoking (OR = 2.846, p = 0.041), and treatment with adalimumab (OR = 8.894, p < 0.001) were independently associated with development of psoriasiform lesions. Three (3%) patients with infectious complications and 12 (31%) patients with psoriasiform lesions discontinued anti-TNF therapy definitively. CONCLUSIONS: Dermatological manifestations occurred in almost one third of our population. Infections were the most common complication, but anti TNF-induced psoriasiform lesions were the most common cause for anti-TNF therapy definitive discontinuation. PMID- 29349694 TI - Endoscopic Ultrasound-Guided Rendezvous Technique for Failed Biliary Cannulation in Benign and Resectable Malignant Biliary Disorders. AB - BACKGROUND: Endoscopic ultrasound-guided rendezvous technique (EUS-RV) has emerged as an effective salvage method for unsuccessful biliary cannulation. However, its application for benign and resectable malignant biliary disorders has not been fully evaluated. AIMS: To assess the efficacy and safety of EUS-RV for benign and resectable malignant biliary disorders. METHODS: This was a multicenter prospective study from 12 Japanese referral centers. Patients who underwent EUS-RV after failed biliary cannulation for biliary disorder were candidates for this study. Inclusion criteria were unsuccessful biliary cannulation for therapeutic endoscopic retrograde cholangiopancreatography with benign and potentially resectable malignant biliary obstruction. Exclusion criteria included unresectable malignant biliary obstruction, inaccessible papillae due to surgically altered upper gastrointestinal anatomy or duodenal stricture, and previous sphincterotomy and/or biliary stent placement. The primary outcome was the technical success rate of biliary cannulation; procedure time, adverse events, and clinical outcomes were secondary outcomes. RESULTS: Twenty patients were prospectively enrolled. The overall technical success rate and median procedure time were 85% and 33 min, respectively. Guidewire manipulation using a 4-Fr tapered tip catheter contributed to the success in advancing the guidewire into the duodenum. Adverse events were identified in 15% patients, including 2 with biliary peritonitis and 1 mild pancreatitis. EUS-RV did not affect surgical maneuvers or complications associated with surgery, or postoperative course. CONCLUSIONS: EUS-RV may be a safe and feasible salvage method for unsuccessful biliary cannulation for benign or resectable malignant biliary disorders. Use of a 4-Fr tapered tip catheter may improve the overall EUS RV success rate. PMID- 29349695 TI - Efficacy of Atopy Patch Testing in Directed Dietary Therapy of Eosinophilic Esophagitis: A Pilot Study. AB - BACKGROUND: Atopy patch testing (APT) has shown potential for predicting dietary food triggers in studies of children and adolescents with eosinophilic esophagitis (EoE). AIMS: To assess the efficacy of APT in adults with EoE. METHODS: We conducted a prospective open-label pilot study of patients >= 18 years old with diagnosis of EoE at Mayo Clinic in Rochester, Minnesota, from November 2014 to January 2016. All patients underwent patch testing using intact food products, followed by a six food elimination diet and stepwise food reintroduction. Response to elimination diet was assessed with serial endoscopy with biopsies as well as clinical symptoms. APT results were directly compared to elimination diet results for assessment of efficacy. Correlation between clinical symptoms, endoscopic score, and histology was also qualitatively evaluated. RESULTS: Fifty percent of the patients had a positive APT, while only 16% had an APT result confirmed histologically during food reintroduction. Sensitivity of APT was calculated to be 5.9%, with specificity of 92.0%. Furthermore, we found significant qualitative inter-patient heterogeneity in the correlation between clinical symptoms, EREFS score, and histology. CONCLUSIONS: APT does not reliably predict food triggers identified by food elimination diet in adult patients with EoE. As a result, APT does not have a clear role in the evaluation of patients with EoE. PMID- 29349696 TI - Assessing priming for prosodic representations: Speaking rate, intonational phrase boundaries, and pitch accenting. AB - Recent work in the literature on prosody presents a puzzle: Some aspects of prosody can be primed in production (e.g., speech rate), but others cannot (e.g., intonational phrase boundaries, or IPBs). In three experiments we aimed to replicate these effects and identify the source of this dissociation. In Experiment 1 we investigated how speaking rate and the presence of an intonational boundary in a prime sentence presented auditorily affect the production of these aspects of prosody in a target sentence presented visually. Analyses of the targets revealed that participants' speaking rates, but not their production of boundaries, were affected by the priming manipulation. Experiment 2 verified whether speakers are more sensitive to IPBs when the boundaries provide disambiguating information, and in this different context replicated Experiment 1 in showing no IPB priming. Experiment 3 tested whether speakers are sensitive to another aspect of prosody-pitch accenting-in a similar paradigm. Again, we found no evidence that this manipulation affected pitch accenting in target sentences. These findings are consistent with earlier research and suggest that aspects of prosody that are paralinguistic (like speaking rate) may be more amenable to priming than are linguistic aspects of prosody (such as phrase boundaries and pitch accenting). PMID- 29349697 TI - To share or not to share? Expected pros and cons of data sharing in radiological research. AB - : The aims of this paper are to illustrate the trend towards data sharing, i.e. the regulated availability of the original patient-level data obtained during a study, and to discuss the expected advantages (pros) and disadvantages (cons) of data sharing in radiological research. Expected pros include the potential for verification of original results with alternative or supplementary analyses (including estimation of reproducibility), advancement of knowledge by providing new results by testing new hypotheses (not explored by the original authors) on pre-existing databases, larger scale analyses based on individual-patient data, enhanced multidisciplinary cooperation, reduced publication of false studies, improved clinical practice, and reduced cost and time for clinical research. Expected cons are outlined as the risk that the original authors could not exploit the entire potential of the data they obtained, possible failures in patients' privacy protection, technical barriers such as the lack of standard formats, and possible data misinterpretation. Finally, open issues regarding data ownership, the role of individual patients, advocacy groups and funding institutions in decision making about sharing of data and images are discussed. KEY POINTS: * Regulated availability of patient-level data of published clinical studies (data-sharing) is expected. * Expected benefits include verification/advancement of knowledge, reduced cost/time of research, clinical improvement. * Potential drawbacks include faults in patients' identity protection and data misinterpretation. PMID- 29349698 TI - Third generation dual-source CT enables accurate diagnosis of coronary restenosis in all size stents with low radiation dose and preserved image quality. AB - OBJECTIVES: To investigate the diagnostic performance of low dose stent imaging in patients with large (>= 3 mm) and small (< 3 mm) calibre stents by third generation dual-source CT. METHODS: Symptomatic patients suspected of having in stent restenosis (ISR) were prospectively enrolled. Coronary computed tomography angiography (CCTA) and invasive coronary angiography (ICA) were performed within 1 month for correlation. Binary ISR was defined as an in-stent neointimal proliferation with diameter stenosis >= 50%. The radiation dose and image quality of CCTA were also assessed. RESULTS: Sixty-nine patients with 140 stents were ultimately included for analysis. The mean total radiation dose of CCTA was 1.3 +/- 0.72 mSv in all patients and 0.95 +/- 0.17 mSv in patients with high pitch acquisition. The overall diagnostic accuracy of CCTA stent imaging of patient based, lesion-based and stent-based analysis was 95.7%, 94.1% and 94.3%, respectively. Further, the diagnostic accuracy of CCTA in the small calibre stent group (diameter < 3 mm) was slightly lower than that of the large calibre stent group (diameter >= 3 mm) (88.5% versus 98.7%, p = 0.01). CONCLUSIONS: Third generation dual-source CT enables accurate diagnosis of coronary ISR of both large and small calibre stents. Low radiation dose could be achieved with preserved image quality. KEY POINTS: * Third-generation DSCT enables accurate diagnosis of coronary ISR of all size stents. * Low radiation dose could be achieved with preserved image quality. * The diagnostic accuracy of CCTA of small calibre stents was 88.5%. PMID- 29349699 TI - To evaluate the feasibility of magnetic resonance imaging in predicting unusual site ectopic pregnancy: a retrospective cohort study. AB - OBJECTIVE: To evaluate the accuracy of pelvic MRI in the diagnosis of unusual ectopic pregnancy (EP), when ultrasound (US) examination is inconclusive. METHODS: We retrospectively reviewed the medical records of 150 patients with suspected EP. Clinical, US and MRI features of 15 unusual EPs were analysed. Two radiologists independently reviewed each case resolving by consensus any diagnostic discrepancy. Interobserver agreement was assessed using the Cohen kappa test. RESULTS: MRI displayed a gestational sac-like structure surrounded by a thick wall in all cases. The thick wall displayed hyperintensity in 41 %, isointensity in 35 % and hypointensity in 24 % of cases on T1-weighted images. Diffusion- and fat saturation T1-weighted images were the most accurate sequences, as they enabled identification of 15/15 and 14/15 patients, respectively. Although US was false negative in detecting cervical and uterine infiltration underlying the caesarean scar, MRI was able to identify the invasion. Interobserver agreement was very good for all sequences (kappa=0.892 1.0). CONCLUSIONS: MRI plays an important role in the early diagnosis of unusual EP. It should be considered after negative US findings, providing accurate evaluation of the site and the possible infiltration of these lesions, which help in the management of these patients. KEY POINTS: * MRI is being increasingly used as a problem-solving modality in ectopic pregnancy. * MRI plays an important role in early diagnosis of unusual ectopic pregnancy. * Knowledge of MRI features in EP is essential to determinate appropriate management. PMID- 29349700 TI - Adrenergic and metabolic effects of electrical weapons: review and meta-analysis of human data. AB - INTRODUCTION: Electronic control with the CEW (conducted electrical weapon) has gained widespread acceptance as the preferred force option due to its significant injury reduction. However, a CEW application does stress the human body. In the case of the CEW, the human body response is similar to the challenge of physical exercise combined with emotional stress over a very short time interval. There has been concern whether the tension of the skeletal-muscle system together with the emotional stress of being exposed to the effects of a CEW, can lead to severe metabolic dysfunction. METHODS: A systematic and careful search of the MedLine database was performed to find publications describing pathophysiological effects of CEWs. Additional publications were collected through a manual search of reference lists in retrieved articles. After preliminary exclusions, we carefully reviewed the remaining publications and found 24 papers reporting prospective human clinical research data on adrenergic, ventilation, or metabolic effects. Where there were multiple studies on the same endpoints, we performed meta analyses. RESULTS: A CEW exposure provides a clinically insignificant increase in heart rate (7.5 BPM) and a drop in both systolic and diastolic blood pressure. Alpha-amylase goes down but cortisol levels increase-both epinephrine and norepinephrine levels are increased by levels similar to mild exercise. A CEW exposure increases ventilation but does not appear to interfere with gas exchange. Lactate is increased slightly while the pH is decreased slightly with changes equivalent to mild exercise. The lactate and pH changes appear quickly and do not appear to be affected by increasing the exposure duration from 5 to 30 s. CONCLUSIONS: Thorough review and meta-analyses show that electrical weapon exposures have mixed and mild adrenergic effects. Ventilation is increased and there are metabolic changes similar to mild exercise. PMID- 29349701 TI - Chicken Egg Yolk Antibodies Specific for the gamma Chain of Human Hemoglobin for Diagnosis of Thalassemia. AB - Immunoglobulin Y (IgY) technology was used to generate anti-hemoglobin Bart's (Hb Bart's) IgY antibodies (Abs) for development into an enzyme-linked immunosorbent assay (ELISA) test for thalassemia diagnosis. Hb Bart's purified from the hemolysate of a patient with Hb Bart's hydrops fetalis (homozygous alpha thalassemia) was used to immunize a chicken via the pectoralis muscle. After water dilution and sodium sulfate precipitation, 40 to 70 mg of IgY could be extracted from an egg. IgY, first detected in sera 2 weeks after immunization, reached the highest titer at week 4, and the titer remained stable for at least 2 weeks before declining. The pattern of Ab response in the yolk was the same as in the serum but was somewhat delayed. The IgY Abs produced reacted with gamma globin, Hb Bart's, Hb F, normal cord hemolysate (Hbs F plus A), and Hb Bart's hydrops fetalis (Hbs Bart's plus Portland) and to a lesser degree with beta globin, Hb A, Hb A2, and adult hemolysate (Hbs A plus A2), but the Abs did not react with alpha globin. Immunoaffinity purification with Hb A coupled to Sepharose was used to isolate an unbound IgY that reacted with Hb F, Hb Bart's, and gamma globin, and this IgY was used to develop an ELISA test for thalassemia diagnosis. The results of direct ELISA analyses of 336 hemolysate samples from individuals with various known thalassemia genotypes and phenotypes and from healthy individuals confirmed the specificity of the polyclonal Abs for Hbs containing Hb F and Hb Bart's. This specificity, which was due to the Abs' strong reactivity in cases of pathologic thalassemic diseases and weak reactivity in cases of nonpathologic thalassemic diseases, depended on the levels of Hb Bart's and Hb F. PMID- 29349702 TI - Transcription Factors: Normal and Malignant Development of Blood Cells. PMID- 29349704 TI - Peroxisome Proliferator-Activated Receptor gamma and Retinoic Acid Receptor Synergistically Up-Regulate the Tumor Suppressor PTEN in Human Promyeloid Leukemia Cells. AB - Peroxisome proliferator-activated receptor gamma (PPARgamma) and retinoic acid receptors (RARs) have been a focus in chemotherapy for human cancers. The tumor suppressor PTEN plays a pivotal role in the growth of human cancer cells. We investigated whether costimulation of PPARgamma and RAR could synergistically up regulate PTEN in human leukemia cells and consequently potentiate the inhibition of growth and cell cycle progression of these cells. We found that overexpression of PTEN with the adenoviral vector Ad/PTEN caused growth arrest at the G1 phase of the cell cycle of HL-60 cells. HL-60 cells treated with either a PPARgamma ligand (ciglitazone) or a RAR ligand(all-trans retinoic acid [ATRA]) up-regulated PTEN in HL-60 cells. The 2 compounds in combination showed synergistic effects on PTEN expression at the protein and messenger RNA levels. Moreover, the combination of ciglitazone and ATRA synergistically reduced cell growth rates and cell cycle arrest at the G1 phase. Our results suggest that, PPARgamma and RAR play an important role in controlling the growth of leukemia cells via the up regulation of PTEN. PMID- 29349703 TI - Matrix Stiffness: the Conductor of Organ Fibrosis. AB - PURPOSE OF REVIEW: Organ fibrosis is a lethal component of scleroderma. The hallmark of scleroderma fibrosis is extensive extracellular matrix (ECM) deposition by activated myofibroblasts, specialized hyper-contractile cells that promote ECM remodeling and matrix stiffening. The purpose of this review is to discuss novel mechanistic insight into myofibroblast activation in scleroderma. RECENT FINDINGS: Matrix stiffness, traditionally viewed as an end point of organ fibrosis, is now recognized as a critical regulator of tissue fibrogenesis that hijacks the normal physiologic wound-healing program to promote organ fibrosis. Here, we discuss how matrix stiffness orchestrates fibrosis by controlling three fundamental pro-fibrotic mechanisms: (a) mechanoactivation of myofibroblasts, (b) integrin-mediated latent transforming growth factor beta 1 (TGF-beta1) activation, and (c) activation of non-canonical TGF-beta1 signaling pathways. We also summarize novel therapeutic targets for anti-fibrotic therapy based on the mechanobiology of scleroderma. Future research on mechanobiology of scleroderma may lead to important clinical applications such as improved diagnosis and treatment of patients with scleroderma and other fibrotic-related diseases. PMID- 29349705 TI - Stool cultures at the ICU: get rid of it! AB - BACKGROUND: Stool cultures for Campylobacter, Salmonella and Shigella and/or Yersinia spp. are frequently ordered in critically ill patients with diarrhea. The aim of this study is to analyze the diagnostic yield in a large cohort of critically ill patients. Therefore, we performed a cohort study at the Department of Intensive Care Medicine of a University Hospital (11 ICUs). RESULTS: From all patients who were admitted to the ICU between 2010 and 2015, stool cultures were taken from 2.189/36.477 (6%) patients due to diarrhea. Results of all stool cultures tested for Campylobacter, Salmonella and Shigella and/or Yersinia spp. were analyzed. Overall, 5.747 tests were performed; only six were positive (0.1%). In four of these, Campylobacter spp. were detected; diarrhea started within 48 h after ICU admission. Two patients with Salmonella spp. detection were chronic shedders. On the contrary, testing for Clostridium difficile via GDH- and toxin A/B-EIA yielded positive results in 179/2209 (8.1%) tests and revealed 144/2.189 (6.6%) patients with clinically relevant C. difficile infection. CONCLUSIONS: Stool testing for enteric pathogens other than C. difficile should be avoided in ICU patients and is only reasonable when diarrhea commenced less than 48 h after hospital admission. PMID- 29349707 TI - Piperazine clubbed with 2-azetidinone derivatives suppresses proliferation, migration and induces apoptosis in human cervical cancer HeLa cells through oxidative stress mediated intrinsic mitochondrial pathway. AB - Piperazine scaffolds or 2-azetidinone pharmacophores have been reported to show anti-cancer activities and apoptosis induction in different types of cancer cells. However, the mechanistic studies involve in induction of apoptosis addressing these two moieties for human cervical cancer cells remain uncertain. The present study emphasizes on the anti-proliferating properties and mechanism involved in induction of apoptosis for these structurally related azoles derivatives in HeLa cancer cells. 1-Phenylpiperazine clubbed with 2-azetidione derivatives (5a-5h) were synthesized, characterized using various spectroscopic techniques and evaluated for their in-vitro anti-proliferative activities and induction of apoptosis. Further, we also evaluated oxidative stress generated by these synthetic derivatives (5a-5h). Cell viability studies revealed that among all, the compound N-(3-chloro-2-(3-nitrophenyl)-4-oxoazetidin-1-yl)-2-(4 phenylpiperazin-1-yl) acetamide 5e remarkably inhibited the growth of HeLa cells in a concentration dependent manner having IC50 value of 29.44 +/- 1.46 ug/ml. Morphological changes, colonies suppression and inhibition of migration clearly showed the antineoplasicity in HeLa cells treated with 5e. Simultaneously, phosphatidylserine externalization, DNA fragmentation and cell-cycle arrest showed ongoing apoptosis in the HeLa cancer cells induced by compound 5e in concentration dependent manner. Additionally, generation of intracellular ROS along with the decrease in mitochondrial membrane potential supported that compound 5e caused oxidative stress resulting in apoptosis through mitochondria mediated pathway. Elevation in the level of cytochrome c and upregulation in expression of caspase-3 clearly indicated the involvement of the intrinsic pathway of programmed cell death. In brief; compound 5e could serve as a promising lead for the development of an effective antitumor agent. PMID- 29349706 TI - Effect of the combination of mephedrone plus ethanol on serotonin and dopamine release in the nucleus accumbens and medial prefrontal cortex of awake rats. AB - Cathinones, such as mephedrone (Meph), are often co-abused with alcoholic drinks. In the present study, we investigated the combined effects of Meph plus ethanol (EtOH) on neurotransmitter release in the nucleus accumbens (NAc) and the medial prefrontal cortex (mPFC). A guide canula was stereotaxically implanted into either the NAc or the mPFC of male Sprague-Dawley rats. Seven days after surgery, a microdialysis probe was inserted and rats were administered saline, EtOH (1 g/kg, i.p.), Meph (25 mg/kg, s.c.), or their combination, and dialysates were collected. Serotonin (5-HT), dopamine (DA), and their metabolites (5-HIAA, DOPAC and HVA) were determined through high-pressure liquid chromatography coupled to mass spectrometry. 5-HT and DA peaked 40 min after Meph administration (with or without EtOH co-treatment) in both areas. EtOH combined with Meph increased the 5 HT release compared with the rats receiving Meph alone (85% in NAc, 65% in mPFC), although the overall change in the area under the curve only reached statistical significance in the NAc. In mPFC, the increased release of 5-HT lasted longer in the combination than that in the Meph group. Moreover, EtOH potentiated the psychostimulant effect of Meph measured as a locomotor activity. Given that both 5-HT and DA are also related with reward and impulsivity, the observed effects point to an increased risk of abuse liability when combining Meph with EtOH compared with consuming these drugs alone. PMID- 29349708 TI - Cost-Effectiveness of Empagliflozin for the Treatment of Patients with Type 2 Diabetes Mellitus at Increased Cardiovascular Risk in Greece. AB - BACKGROUND AND OBJECTIVE: Type 2 diabetes mellitus (T2DM) is frequently associated with co-morbidities that exacerbate cardiovascular (CV) risk. CV disease is the leading cause of death in people with diabetes across the world and accounts for approximately half the deaths in the T2DM population. Hence, the objective of present study was to evaluate the cost-effectiveness of empagliflozin, in addition to standard of care (SoC), for the treatment of adult patients with T2DM and high CV risk in Greece. METHODS: A health economic model was used to project clinical and economic outcomes of patients receiving empagliflozin plus SoC compared with those receiving SoC alone over a lifetime horizon. CV and renal event rates were derived from patient level data from the EMPA-REG-OUTCOME(r) trial by fitting time-dependent parametric survival functions. 5000 individual patient profiles randomly sampled from the trial were simulated using a time-to-event approach. Model extrapolated outcomes included life years (LYs), quality-adjusted life years (QALYs), costs, and incremental cost-effectiveness ratio (ICER). Following a Greek third-party payer perspective, only direct medical costs related to drug acquisition as well as fatal and non fatal diabetes-related complications were considered (?2016). Cost units and utility data were extracted from the literature and publicly available official sources. Sensitivity analyses explored the impact of changes in input data. RESULTS: Over a patient's lifetime, empagliflozin was predicted to result in longer mean survival (14.01 LY vs. 11.87 LY with SoC) and reduced rate of clinical events accumulating 7.75 QALYs versus 6.83 QALYs on SoC alone at additional costs of ?4235. The generated ICER of empagliflozin was ?4633 per QALY gained. One-way sensitivity analysis confirmed empagliflozin's cost-effective profile. At the defined willingness-to-pay threshold of ?34,000 per QALY gained, probabilistic sensitivity analysis showed that empagliflozin was estimated to have a 100% probability of being cost-effective relative to SoC. CONCLUSIONS: Empagliflozin added to SoC was estimated to be a highly cost-effective treatment option for the treatment of T2DM in adults with increased CV disease risk in Greece. PMID- 29349709 TI - The host response in critically ill sepsis patients on statin therapy: a prospective observational study. AB - BACKGROUND: Statins can exert pleiotropic anti-inflammatory, vascular protective and anticoagulant effects, which in theory could improve the dysregulated host response during sepsis. We aimed to determine the association between prior statin use and host response characteristics in critically ill patients with sepsis. METHODS: We performed a prospective observational study in 1060 patients admitted with sepsis to the mixed intensive care units (ICUs) of two hospitals in the Netherlands between January 2011 and July 2013. Of these, 351 patients (33%) were on statin therapy before admission. The host response was evaluated by measuring 23 biomarkers providing insight into key pathways implicated in sepsis pathogenesis and by analyzing whole-blood leukocyte transcriptomes in samples obtained within 24 h after ICU admission. To account for indication bias, a propensity score-matched cohort was created (N = 194 in both groups for protein biomarkers and N = 95 in both groups for gene expression analysis). RESULTS: Prior statin use was not associated with an altered mortality up to 90 days after admission (38.0 vs. 39.7% in the non-statin users in the propensity-matched analysis). Statin use did not modify systemic inflammatory responses, activation of the vascular endothelium or the coagulation system. The blood leukocyte genomic response, characterized by over-expression of genes involved in inflammatory and innate immune signaling pathways as well as under-expression of genes associated to T cell function, was not different between patients with and without prior statin use. CONCLUSIONS: Statin therapy is not associated with a modified host response in sepsis patients on admission to the ICU. PMID- 29349710 TI - Digital image analysis of Ki67 proliferation index in breast cancer using virtual dual staining on whole tissue sections: clinical validation and inter-platform agreement. AB - PURPOSE: The Ki67 proliferation index is a prognostic and predictive marker in breast cancer. Manual scoring is prone to inter- and intra-observer variability. The aims of this study were to clinically validate digital image analysis (DIA) of Ki67 using virtual dual staining (VDS) on whole tissue sections and to assess inter-platform agreement between two independent DIA platforms. METHODS: Serial whole tissue sections of 154 consecutive invasive breast carcinomas were stained for Ki67 and cytokeratin 8/18 with immunohistochemistry in a clinical setting. Ki67 proliferation index was determined using two independent DIA platforms, implementing VDS to identify tumor tissue. Manual Ki67 score was determined using a standardized manual counting protocol. Inter-observer agreement between manual and DIA scores and inter-platform agreement between both DIA platforms were determined and calculated using Spearman's correlation coefficients. Correlations and agreement were assessed with scatterplots and Bland-Altman plots. RESULTS: Spearman's correlation coefficients were 0.94 (p < 0.001) for inter-observer agreement between manual counting and platform A, 0.93 (p < 0.001) between manual counting and platform B, and 0.96 (p < 0.001) for inter-platform agreement. Scatterplots and Bland-Altman plots revealed no skewness within specific data ranges. In the few cases with >= 10% difference between manual counting and DIA, results by both platforms were similar. CONCLUSIONS: DIA using VDS is an accurate method to determine the Ki67 proliferation index in breast cancer, as an alternative to manual scoring of whole sections in clinical practice. Inter platform agreement between two different DIA platforms was excellent, suggesting vendor-independent clinical implementability. PMID- 29349711 TI - Impact of an embedded genetic counselor on breast cancer treatment. AB - BACKGROUND: We predicted that embedding a genetic counselor within our breast practice would improve identification of high-risk individuals, timeliness of care, and appropriateness of surgical decision making. The aim of this study is to compare cancer care between 2012 and 2014, prior to embedding a genetic counselor in the breast center and following the intervention, respectively. METHODS: A retrospective review of patients diagnosed with breast cancer in 2012 (n = 471) and 2014 (n = 440) was performed to assess patterns of medical genetics referral, compliance with referral, genetic testing findings, and impact on treatment. RESULTS: Between 2012 and 2014, patients were 49% more likely to be referred to genetics, 66% more likely to follow through with their genetic counseling appointment, experienced a 73% reduction in wait times to genetic counseling visits and 69% more likely to have genetic testing results prior to surgery. Notably, while the number of genetic mutations identified was in the expected range over both time periods (9% of those tested in 2012 vs. 6.6% of those tested in 2014), there was a 31% reduction in time to treatment in 2014 vs. 2012. CONCLUSION: Awareness of germline genetic mutations is critical in surgical decision making for newly diagnosed breast cancer patients. Having an experienced genetics specialist on site in a busy surgical breast clinic allows for timely access to genetic counseling and testing, and may have influenced time to treatment in our institution. PMID- 29349712 TI - Highly favorable physiological responses to concurrent resistance and high intensity interval training during chemotherapy: the OptiTrain breast cancer trial. AB - BACKGROUND: Advanced therapeutic strategies are often accompanied by significant adverse effects, which warrant equally progressive countermeasures. Physical exercise has proven an effective intervention to improve physical function and reduce fatigue in patients undergoing chemotherapy. Effects of high-intensity interval training (HIIT) in this population are not well established although HIIT has proven effective in other clinical populations. The aim of the OptiTrain trial was to examine the effects of concurrent resistance and high-intensity interval training (RT-HIIT) or concurrent moderate-intensity aerobic and high intensity interval training (AT-HIIT), to usual care (UC) on pain sensitivity and physiological outcomes in patients with breast cancer during chemotherapy. METHODS: Two hundred and forty women were randomized to 16 weeks of RT-HIIT, AT HIIT, or UC. OUTCOMES: cardiorespiratory fitness, muscle strength, body mass, hemoglobin levels, and pressure-pain threshold. RESULTS: Pre- to post intervention, RT-HIIT (ES = 0.41) and AT-HIIT (ES = 0.42) prevented the reduced cardiorespiratory fitness found with UC. Handgrip strength (surgery side: RT-HIIT vs. UC: ES = 0.41, RT-HIIT vs. AT-HIIT: ES = 0.28; non-surgery side: RT-HIIT vs. UC: ES = 0.35, RT-HIIT vs. AT-HIIT: ES = 0.22) and lower-limb muscle strength (RT HIIT vs. UC: ES = 0.66, RT-HIIT vs. AT-HIIT: ES = 0.23) were significantly improved in the RT-HIIT. Increases in body mass were smaller in RT-HIIT (ES = - 0.16) and AT-HIIT (ES = - 0.16) versus UC. RT-HIIT reported higher pressure-pain thresholds than UC (trapezius: ES = 0.46, gluteus: ES = 0.53) and AT-HIIT (trapezius: ES = 0.30). CONCLUSION: Sixteen weeks of RT-HIIT significantly improved muscle strength and reduced pain sensitivity. Both exercise programs were well tolerated and were equally efficient in preventing increases in body mass and in preventing declines in cardiorespiratory fitness. These results highlight the importance of implementing a combination of resistance and high intensity interval training during chemotherapy for women with breast cancer. PMID- 29349713 TI - Patient-reported outcomes of catheter-based accelerated partial breast brachytherapy and whole breast irradiation, a single institution experience. AB - PURPOSE: Accelerated partial breast irradiation (APBI) and whole breast irradiation (WBI) are treatment options for early-stage breast cancer. The purpose of this study was to compare patient-reported-outcomes (PRO) between patients receiving multi-channel intra-cavitary brachytherapy APBI or WBI. METHODS: Between 2012 and 2015, 131 patients with ductal carcinoma in situ (DCIS) or early stage invasive breast cancer were treated with adjuvant APBI (64) or WBI (67) and participated in a PRO questionnaire. The linear analog scale assessment (LASA), harvard breast cosmesis scale (HBCS), PRO-common terminology criteria for adverse events- PRO (PRO-CTCAE), and breast cancer treatment outcome scale (BCTOS) were used to assess quality of life (QoL), pain, fatigue, aesthetic and functional status, and breast cosmesis. Comparisons of PROs were performed using t-tests, Wilcoxon rank-sum, Chi square, Fisher exact test, and regression methods. RESULTS: Median follow-up from completion of radiotherapy and questionnaire completion was 13.3 months. There was no significant difference in QoL, pain, or fatigue severity, as assessed by the LASA, between treatment groups (p > 0.05). No factors were found to be predictive of overall QoL on regression analysis. BCTOS health-related QoL scores were similar between treatment groups (p = 0.52).The majority of APBI and WBI patients reported excellent/good breast cosmesis, 88.5% versus 93.7% (p = 0.37). Skin color change (p = 0.011) and breast elevation (p = 0.01) relative to baseline were more common in the group receiving WBI. CONCLUSIONS: APBI and WBI were both associated with favorable patient reported outcomes in early follow-up. APBI resulted in a lesser degree of patient reported skin color change and breast elevation relative to baseline. PMID- 29349714 TI - DBDA as a Novel Matrix for the Analyses of Small Molecules and Quantification of Fatty Acids by Negative Ion MALDI-TOF MS. AB - Matrix interference ions in low mass range has always been a concern when using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) to analyze small molecules (<500 Da). In this work, a novel matrix, N1,N4-dibenzylidenebenzene-1,4-diamine (DBDA) was synthesized for the analyses of small molecules by negative ion MALDI-TOF MS. Notably, only neat ions ([M-H]-) of fatty acids without matrix interference appeared in the mass spectra and the limit of detection (LOD) reached 0.3 fmol. DBDA also has great performance towards other small molecules such as amino acids, peptides, and nucleotide. Furthermore, with this novel matrix, the free fatty acids in serum were quantitatively analyzed based on the correlation curves with correlation coefficient of 0.99. In addition, UV-Vis experiments and molecular orbital calculations were performed to explore mechanism about DBDA used as matrix in the negative ion mode. The present work shows that the DBDA matrix is a highly sensitive matrix with few interference ions for analysis of small molecules. Meanwhile, DBDA is able to precisely quantify the fatty acids in real biological samples. Graphical Abstract ?. PMID- 29349715 TI - "Sex Is a sin": Afro-Caribbean Parent and Teen Perspectives on Sex Conversations. AB - This study characterized (a) mothers' childhood and teenage experiences with sex conversations and (b) families' perceptions of current parent-child sex conversations within two underserved Afro-Caribbean communities in the U.S. Fourteen dyads comprised of Haitian and Jamaican mothers and teens (aged 14-18) living in Miami, Florida, completed semi-structured interviews sharing their experiences with sex conversations. Researchers analyzed data using thematic content analysis. Mothers' mean age was 41.85 years, (SD = 5.50) and teens' mean age was 16.35 years, (SD = 1.31). Most mothers reported forbidden or little childhood experiences with parent-child sex conversations. They affected their sexual attitudes, behaviors, and ability to discuss sex with their children. Although some mothers benefited from educational and skill development others shared fear-based messages with their children that some teens believed adversely affected the mother-child relationship quality. Culturally appropriate, skill based approaches are necessary to improve families' communication self-efficacy for healthy sex conversations to occur in Afro-Caribbean families. PMID- 29349716 TI - Detection of bovine carriers of Leptospira by serological, bacteriological, and molecular tools. AB - Bovine leptospirosis is an important infectious disease that causes reproductive problems and economic risks, particularly in the tropics. The present study aimed to determine the extent of Leptospira infection among bovines on a slaughterhouse from Rio de Janeiro, Brazil via serological, bacteriological, and molecular tests. Two hundred eight bovines were examined in total, and we obtained 208 blood samples for serology, 198 urine samples collected via direct bladder puncture for polymerase chain reaction (PCR) and culture, 208 kidney samples (one from each animal) for PCR and culture, and 92 vaginal fluid samples from sterile swabs for PCR and culture. Serology demonstrated that 77/208 (37%) of the animals presented anti-Leptospira antibodies. Serogroup Sejroe was by far the most common. One hundrd thirty-three animals (63.9%) were PCR positive in at least one of the tested samples and were considered as Leptospira carriers. Furthermore, ten isolates were obtained by pure culture, all of them from urine samples. Bovine leptospirosis is widely prevalent, and the occurrence of renal carriers was unexpectedly much higher than generally reported. PMID- 29349717 TI - Analysis of Candidate Genes at the IBGC1 Locus Associated with Idiopathic Basal Ganglia Calcification ("Fahr" Disease'). AB - Basal ganglia calcification (striatopallidodentate calcifications) can be caused by several systemic and neurological disorders. Familial Idiopathic Basal Ganglia Calcification (IBGC, "Fahr" disease'), is characterized by basal ganglia and extrabasal ganglia calcifications, parkinsonism and neuropsychiatric symptoms. Because of an increased use of neuroimaging procedures, calcifications of the basal ganglia are visualized more often and precociously. In 1999, a major American family with IBGC was linked to a locus on chromosome 14q (IBGC1). Another small kindred, from Spain, has also been reported as possibly linked to this locus. Here we report the main findings of the first 30 candidate genes sequenced at the IBGC1 locus during the process of searching for a mutation responsible for familial IBGC. During the sequencing process, we identified a heterozygous nonsynonymous single nucleotide polymorphism (exon 20 of the MGEA6/c TAGE gene) shared by the affected and not present in the controls. This SNP was randomly screened in the general population (348 chromosomes) in a minor allele frequency to 0.0058 (two heterozygous among 174 subjects). Another variation in this gene, in the exon 9, was found in the Spanish family. However, this variation was extremely common in the general population. Functional and population studies are necessary to fully access the implications of the MGEA6 gene in familial IBGC, and a complete sequencing of the IBGC1 locus will be necessary to define a gene responsible for familial IBGC. PMID- 29349718 TI - Erratum to: The Innate Facet of the Brain: Human Neurons Express TLR3 and Sense Viral dsRNA. PMID- 29349719 TI - Shifts in the importance of the species pool and environmental controls of epiphytic bryophyte richness across multiple scales. AB - Species richness is influenced by a nested set of environmental factors, but how do these factors interact across several scales? Our main aim is to disentangle the relative importance of environmental filters and the species pool on the richness of epiphytic bryophytes across spatial scales. To do so, we sampled epiphytic bryophytes in 43 oak forests across the northwest of the Iberian Peninsula. As predictors we used climate, descriptors of forest structure and micro-environment. We applied structural equation modeling to relate these variables with richness and cover at three scales: locality (forest), stand (three stands per forest), and sample (a quadrate in a tree). We assumed top-down relationships, so that large-scale variables influenced lower scale variables, and in which cover directly influenced richness. Richness at the next larger scale (locality to stand and stand to sample) is considered a surrogate of the species pool and included as a predictor of richness at the next smaller scale. Environmental variables explain locality richness, but as we decrease the spatial scale, its importance decreases and the dependence on species pool increases. In addition, we found unexpected bottom-up relationships (between micro-scale environment to locality richness). Our results point to the scale dependence of niche vs. neutral processes: niche processes are important at the locality (forest) scale, while neutral processes are significant at the small (sample) scale. We propose a modified conceptualization of the factors influencing biodiversity at different spatial scales by adding links across different scales (between micro-environment and locality-scale richness in our study). PMID- 29349720 TI - Differential Effects of Formal and Informal Gambling on Symptoms of Problem Gambling During Voluntary Self-Exclusion. AB - Voluntary self-exclusion (VSE) programs enable problem gamblers to engage in a break from casino-based gambling. The current study analyzed the effects of a VSE program in British Columbia, Canada on problem gambling symptoms and the comparative reductions in problem gambling symptoms when participants abstained from gambling, continued to participate in non-casino based gambling, or attempted to violate their exclusion contract. 269 participants completed two telephone interviews over a 6-month period. Participants were administered the Problem Gambling Severity Index (PGSI). Substantial reductions in PGSI scores were observed after 6 months. Program violators had significantly smaller PGSI Difference Scores by Time 2 compared to those who continued to gamble outside of the casino and those who completely abstained from all gambling. There were no significant differences between those who gambled informally and those who abstained. A multiple regression identified that while access to counselling and length of enrollment also contributed to the reduction in PGSI scores, violation attempts were most strongly associated with smaller reductions in symptoms of problem gambling. These results imply that some gamblers can successfully engage in non-casino based forms of gambling and still experience reductions in symptoms of problem gambling. Future analyses will explore characteristics associated with group membership that may help to identify which participants can successfully engage in non-casino based gambling without re-triggering symptoms of problem gambling. PMID- 29349721 TI - Effects of load on the acute response of muscles proximal and distal to blood flow restriction. AB - To determine the effects of load and blood flow restriction (BFR) on muscular responses, we asked 12 participants to perform chest presses under four different conditions [30/0, 30/40, 50/0, and 50/40, presented as percentage one-repetition maximum (1RM)/percentage arterial occlusion pressure (AOP)]. Muscle thickness increased pre- to post-exercise [chest: mean 0.29, 95% confidence interval (CI) 0.21, 0.37 cm; triceps: mean 0.44, 95% CI 0.34, 0.54 cm], remaining elevated for 15 min post-exercise. Electromyography amplitude was greater with 50% 1RM and increased over time for the first three repetitions of each set of chest presses. The last three repetitions differed across time only. AOP increased from pre- to post-exercise, augmented by BFR [30/0: mean 31, 95% CI 18, 44 mmHg; 30/40: mean 39, 95% CI 28, 50 mmHg; 50/0: mean 32, 95% CI 23, 41 mmHg; 50/40: mean 46, 95% CI 32, 59 mmHg). Tranquility decreased and physical exhaustion increased from the pre- to post-condition, with both parameters returning to the baseline 15 min post-exercise level. In conclusion, load and BFR do not elicit meaningful differences in the acute response of chest press exercise taken to failure. PMID- 29349722 TI - Bystin (BYSL) as a possible marker of severe hypoxic-ischemic changes in neuropathological examination of forensic cases. AB - Bystin (BYSL) is a 306-amino acid protein encoded in humans by the BYSL gene located on the 6p21.1 chromosome. It is conserved across a wide range of eukaryotes. BYSL was reported to be a sensitive marker for the reactive astrocytes induced by ischemia/reperfusion and chemical hypoxia in vitro and is considered to be one of the common characteristics of astrogliosis. In our study we examined whether BYSL could be used as a marker for hypoxic-ischemic changes in forensic cases. Groups suspected of acute hypoxic-ischemic changes presented strong BYSL expression in the cytoplasm of neocortical neurons especially in layers 3-5, that seemed to be short-lasting. In the hypoxic-ischemic-reperfusion group we did not find BYSL expression. BYSL expression in the cytoplasm of cortical neurons was minimal in the control group (cardiac arrest). BYSL seems to be a promising early marker of severe hypoxic-ischemic changes in neuropathological examination of forensic cases and certainly requires further studies. PMID- 29349723 TI - Species diversity and tissue specific dispersal of necrophagous Diptera on human bodies. AB - In forensic entomology, many studies analyze fly activity and succession on dead bodies by using pig cadavers and a variety of small baited traps. Data on real human bodies are very rare. To address this shortcoming, we analyzed the fly fauna of 51 human bodies in Germany. Sex, age, place of discovery, and presumed time of death were noted. Larvae were sampled during autopsy according to body region or tissue. For every infested region, the total number of fly larvae were estimated and classified into categories of 1-10, 11-50, and 50+. All samples were identified to the species level. Besides a descriptive analysis of their occurrence patterns, a categorical PCA was performed, and multispecies generalized linear models and a latent variable model were run. Our results highlight the most forensically important blow flies on human bodies in Central Europe (Lucilia sericata, L. ampullacea, Phormia regina, Calliphora vicina); prove, for the first time, the general transferability of species lists based on succession studies on pig cadavers; recommend a certain set of species, such as the so-far neglected L. ampullacea, for future developmental studies; and reveal competitive occurrence of up to six species on the same body as a potential factor of influence. Assignment to a certain body region was often possible and our data clearly indicate certain tissues, e.g. brain, as of high interest for future developmental studies. Focusing on real scenario settings helps direct research to forensically relevant questions and appraises the plausibility of vital laboratory studies. PMID- 29349724 TI - Analyzing similarities in genome sequences. AB - This article investigates aspects of similarity between complete sequences of mitochondrial DNA by determining the distribution of the relative frequencies of words with different lengths and the characteristics of their relevance throughout the sequences. The degree of similarity is obtained by comparing the distances between words contained within these sequences. Our results indicate that the best groupings among different species depend on the lengths of words and their respective relative frequencies. We also observed that the longer the word the more consistent the grouping between the sequences becomes. The application of our results, together with the perspective of analyzing DNA sequences belonging to a single biological species, may be important for the construction of phylogenetic trees, which are appropriate structures for understanding the evolutionary history of the species. PMID- 29349725 TI - Ki67 Proliferative Index in Carcinoid Tumors Involving Ovary. AB - Primary ovarian carcinoid tumors are rare neoplasms that constitute less than 0.1% of all ovarian carcinomas. However, carcinoid tumors metastatic to ovaries are more common. Cell proliferative rate is an important factor in the determination of neuroendocrine tumor prognosis. Limited data are available as regards Ki67 proliferation index in predicting the physiological features of carcinoid tumors involving the ovary. Pathology files of Mayo Clinic Rochester (1995-2014) were searched, and clinical information was collected from medical records. All cases were stained with an antibody against Ki67, and digital analysis was performed with digital imaging analysis. A total of 36 cases (median age 64 years, range 33-83 years), including 9 primary (median age 68 years, range 33-73 years) and 27 metastatic carcinoid cases (median age 64 years, range 36-83 years), were investigated in the current study. Seven out of nine (77.8%) primary ovarian carcinoids are associated with mature teratoma. Twenty two metastatic carcinoids (81.5%) were from the GI tract, four (14.8%) from the pancreas, and one (3.7%) from the posterior thorax location. There was significant difference of Ki67 index between primary (median 2.3%, range, 0.6-8.4%) and metastatic carcinoid tumors (median 9.7%, range, 1.3-46.7%) (p = 0.002). The survival time is much shorter among patients with metastatic carcinoid tumor (median survival 5.8 years) comparing to primary ovarian carcinoid tumor (median 14.2 years) (p = 0.0005). A strong association between Ki67 index and patient survival time was identified (Hazard ratio for 1-percentage point increase 1.11, p = 0.001). Comparing to primary ovarian carcinoid tumor, metastatic carcinoid usually exhibits a higher Ki67 index and a worse outcome. PMID- 29349726 TI - Fungal Respiratory Infections in Cystic Fibrosis (CF): Recent Progress and Future Research Agenda. PMID- 29349727 TI - Lifestyles of Patients with Functional Psychosis Compared to Those of a Sample of the Regional General Population: Findings from a Study in a Community Mental Health Service of the Veneto Region, Italy. AB - Unhealthy lifestyles contribute, with other risk factors, to the high prevalence of mortality and physical comorbidity among mental patients compared to the general population. We collected data on the lifestyles of 193 subjects with psychosis in contact with a Community Mental Health Service in north-eastern Italy and compared them with a representative sample (total: 3219 subjects) of the general population of the same region. Diet, exercise, smoking and alcohol consumption were worse in mental patients. A higher percentage of patients was overweight or obese. The associations between socio-demographic and lifestyles variables showed that older patients exercise less, female patients tend to smoke and use alcohol less, while more educated patients tend to have higher alcohol consumption levels. Mental patients have unhealthier lifestyles and they appear to be more refractory to recommendations than the general population, indicating the necessity of specific health promotion programmes in this population. PMID- 29349728 TI - Correction to: Mental Health Needs and Psychoactive Drug Use in a User Population of the Family Health Strategy (FHS) in Ribeirao Preto, Sao Paulo, Brazil. AB - The original version of this article unfortunately published without acknowledgement. The funding information and grant number is given below: Funding Research supported by Research in Public for the National Health Care System (PP SUS), Grant number 12/51732-9. PMID- 29349729 TI - Witnessing the advance of science and technology in life sciences in the new era. PMID- 29349730 TI - CCN5 in alveolar epithelial proliferation and differentiation during neonatal lung oxygen injury. AB - Lung immaturity is the major cause of morbidity and mortality in premature infants, especially those born <28 weeks of gestation. These infants are at high risk of developing respiratory distress syndrome (RDS), a lung disease caused by insufficient surfactant production and immaturity of saccular/alveolar type II epithelial cells in the lung. RDS treatment includes oxygen and respiratory support that improve survival but also increase the risk for bronchopulmonary dysplasia (BPD), a chronic lung disease characterized by arrested alveolarization, airway hyperreactivity, and pulmonary hypertension. The mechanisms regulating normal alveolar development and how injury disrupts normal development to cause BPD are not well understood. We examined the role of the matricellular protein CCN5 (Cysteine-rich protein 61/Connective tissue growth factor/Nephroblastoma-overexpressed protein) in the development of BPD. Cultured non-proliferating alveolar type II cells expressed low levels of CCN5 protein, and displayed higher levels during proliferation. siRNA targeting of CCN5 reduced alveolar type II cell proliferation and migration in cell culture. In a mouse model of hyperoxia-induced BPD, CCN5 protein was increased only in proliferating alveolar type I cells. Alveolar epithelial cells co-expressing markers of type II cells and type I cells also appeared. The results suggest that hyperoxic injury in immature lungs induces proliferation of type I cells and trans-differentiation of type II cells into type I cells. We propose that the mechanism of the injury response in BPD includes CCN5 expression. Study of CCN5 in neonatal alveolar injury will further our understanding of BPD pathophysiology while providing a mechanistic foundation for therapeutic approaches. PMID- 29349731 TI - Membranous nephropathy associated with pregnancy: an anti-phospholipase A2 receptor antibody-positive case report. AB - Pregnancy and membranous nephropathy (MN) can occur concurrently with nephrotic syndrome. However, the pathophysiology of MN associated with pregnancy remains unclear, including the involvement of anti-M-type phospholipase A2 receptor (PLA2R) antibody, the major antigen of idiopathic MN (iMN). A treatment for the condition is also not established. We present the case of a 43-year-old pregnant female with incidental proteinuria and hypoalbuminemia. We made a diagnosis of nephrotic syndrome at 11 week gestation. Renal biopsy revealed iMN using predominant granular staining of IgG4 along the glomerular basement membrane. No secondary cause was identified. Oral glucocorticoid therapy was started from 17 week gestation and induced complete remission at 28 week gestation. A healthy infant was born at 38 week gestation. Glucocorticoid therapy was stopped postpartum without MN relapse. Anti-PLA2R antibody was later found to be positive using serum reserved from before treatment. In conclusion, we presented the case of a pregnant woman with iMN and anti-PLA2R antibodies, whose nephrotic syndrome was successfully controlled with oral glucocorticoids to reach complete remission, even after tapering off the medication. Pregnancy per se might be associated with iMN onset. PMID- 29349732 TI - Membranous glomerulonephritis with an LMNA mutation. AB - We had encountered the case of membranous glomerulonephritis (MGN) with dilated cardiomyopathy due to LMNA gene mutation. LMNA mutation was known as a cause of 'laminopathy' such as dilated cardiomyopathy, muscular dystrophy, neuropathy and so on. LMNA gene might be a candidate of genetic basis in cryptogenic MGN. PMID- 29349733 TI - Point-of-care ultrasound (POCUS) of the upper airway. AB - Airway management is a critical skill in the practice of several medical specialities including anesthesia, emergency medicine, and critical care. Over the years mounting evidence has showed an increasing role of ultrasound (US) in airway management. The objective of this narrative review is to provide an overview of the indications for point-of-care ultrasound (POCUS) of the upper airway. The use of US to guide and assist clinical airway management has potential benefits for both provider and patient. Ultrasound can be utilized to determine airway size and predict the appropriate diameter of single-lumen endotracheal tubes (ETTs), double-lumen ETTs, and tracheostomy tubes. Ultrasonography can differentiate tracheal, esophageal, and endobronchial intubation. Ultrasonography of the neck can accurately localize the cricothyroid membrane for emergency airway access and similarly identify tracheal rings for US guided tracheostomy. In addition, US can identify vocal cord dysfunction and pathology before induction of anesthesia. A rapidly growing body of evidence showing ultrasonography used in conjunction with hands-on management of the airway may benefit patient care. Increasing awareness and use of POCUS for many indications have resulted in technologic advancements and increased accessibility and portability. Upper airway POCUS has the potential to become the first-line non-invasive adjunct assessment tool in airway management. PMID- 29349734 TI - Alternative soilless media using olive-mill and paper waste for growing ornamental plants. AB - Peat-based growing media are not ecologically sustainable and peat extraction threatens sensitive peatland ecosystem. In this study, olive-stone waste (OSW) and paper waste (PW) were used in different ratios-as growing media-for ornamental crop production, as peat (P) substitutes. Marigold (Calendula officinalis L.), petunia (Petunia x hybrita L.) and matthiola (Matthiola incana L.) plants were grown in (1) P (100%), (2) P:OSW (90%:10%), (3) P:OSW (70%:30%), and (4) P:OSW:PW (60%:20%:20%). The physicochemical properties of these substrates and the effects on plant growth were determined. The addition of 10 30% OSW into the substrate increased marigold height compared to plants grown in 100% peat. No differences in plant size, plant biomass (leaves and flowers), and dry matter content were found. Adding PW, in combination with OSW, maintained marigold height and total number of flowers produced to similar levels as in plants grown in 100% peat. In matthiola, adding 30% OSW into the substrate reduced plant size and fresh weight, but not plant height. No differences were observed when plants grew in lower OSW (i.e., 10%) content. Petunia's height, its total number of flowers and flower earliness (flower opening) were increased in the presence of OSW compared to the plants grown in 100% peat. The addition of OSW did not affect petunia's size and fresh weight among treatments. The addition of PW suppressed several plant growth-related parameters for both matthiola and petunia. The insertion of OSW did not change leaf chlorophyll content whereas the presence of PW decreased chlorophylls for marigold, petunia, and matthiola. Both OSW and PW altered the content of total phenolics and antioxidant capacity of 2,2 diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6 sulphonic acid) (ABTS) in leaves and flowers for marigold and petunia. Both 30% OSW and PW increased antioxidative enzyme metabolism due to the increased damage index and lipid peroxidation observed in plants. Leaf N and P content decreased in PW-based media, while matthiola displayed visual phytotoxicity symptoms when PW was added into the substrate. The present work indicates that up to 30% of OSW can replace peat for marigold and petunia growing and only up to 10% of OSW for matthiola, while the addition of PW on top of OSW is not recommended, so further research is needed. PMID- 29349735 TI - ICT, openness and CO2 emissions in Africa. AB - This study investigates how information and communication technology (ICT) complements globalisation in order to influence CO2 emissions in 44 Sub-Saharan African countries over the period 2000-2012. ICT is measured with internet penetration and mobile phone penetration whereas globalisation is designated in terms of trade and financial openness. The empirical evidence is based on the generalised method of moments. The findings broadly show that ICT can be employed to dampen the potentially negative effect of globalisation on environmental degradation like CO2 emissions. Practical, policy and theoretical implications are discussed. PMID- 29349736 TI - Application of experimental design for the optimization of artificial neural network-based water quality model: a case study of dissolved oxygen prediction. AB - This paper presents an application of experimental design for the optimization of artificial neural network (ANN) for the prediction of dissolved oxygen (DO) content in the Danube River. The aim of this research was to obtain a more reliable ANN model that uses fewer monitoring records, by simultaneous optimization of the following model parameters: number of monitoring sites, number of historical monitoring data (expressed in years), and number of input water quality parameters used. Box-Behnken three-factor at three levels experimental design was applied for simultaneous spatial, temporal, and input variables optimization of the ANN model. The prediction of DO was performed using a feed-forward back-propagation neural network (BPNN), while the selection of most important inputs was done off-model using multi-filter approach that combines a chi-square ranking in the first step with a correlation-based elimination in the second step. The contour plots of absolute and relative error response surfaces were utilized to determine the optimal values of design factors. From the contour plots, two BPNN models that cover entire Danube flow through Serbia are proposed: an upstream model (BPNN-UP) that covers 8 monitoring sites prior to Belgrade and uses 12 inputs measured in the 7-year period and a downstream model (BPNN-DOWN) which covers 9 monitoring sites and uses 11 input parameters measured in the 6-year period. The main difference between the two models is that BPNN-UP utilizes inputs such as BOD, P, and PO43-, which is in accordance with the fact that this model covers northern part of Serbia (Vojvodina Autonomous Province) which is well-known for agricultural production and extensive use of fertilizers. Both models have shown very good agreement between measured and predicted DO (with R2 >= 0.86) and demonstrated that they can effectively forecast DO content in the Danube River. PMID- 29349737 TI - Teratogenic effects induced by chitosan oligosaccharide in Wistar female rat Rattus norvegicus. AB - The aim of this research is to investigate the teratogenic effects of chitosan oligosaccharide in Wistar female rats (Rattus norvegicus). Chitosan LD50 value was calculated by probit analysis. High dose, 1/10 LD50 which equal to 150 mg/kg body weight, and low dose, 1/30 LD50 which equal to 50 mg/kg body weight, were administrated orally to Wistar female rats to examine the teratogenic effect during organogenesis period from 6th day to 15th day of gestation. Treated and control rats were sacrificed and their foetuses were examined for external, skeletal and visceral anomalies, number and length of foetuses and their weights. Obtained results showed toxicity and teratogenic effects of chitosan on treated rats and their progenies, i.e. high fetal mortality, offspring's weight and length reduction, and high incidence of fetal external, skeletal and visceral abnormalities. This suggested that chitosan is a teratogenic compound, restricted to current results from orally treated Wistar rats. PMID- 29349738 TI - Letter to the Editor on "Chrysotile and rock wool fibers induce chromosome aberrations and DNA damage in V79 lung fibroblast cells". PMID- 29349739 TI - Enhanced reductive dechlorination of 1,1,1-trichloroethane using zero-valent iron biochar-carrageenan microspheres: preparation and microcosm study. AB - In this study, a composite remediation material for the enhanced reductive dechlorination (ERD) of 1,1,1-trichloroethane (1,1,1-TCA) in aqueous solution was prepared. This material was comprised of biochar as the carrier and adsorbent, and carrageenan (CG) as the embedding medium to entrap the organic carbon sources and zero-valent iron (ZVI). We determined the suitable biochar dosage and organic carbon source in the composite alongside the optimal preparation conditions. Furthermore, using an anaerobic microcosm study, we discussed the performance and possible mechanisms of the composite on 1,1,1-TCA removal in aqueous solution. From this, we found that the suitable dosage of biochar in water during the preparation of composite microspheres was 0.2% (w/v). Under this condition, the biochar had a strong capacity to adsorb 1,1,1-TCA with a removal efficiency of 84.2%. Soluble starch was selected as the appropriate organic carbon source, because starch-microspheres show an excellent slow-release effect in water. The optimal preparation conditions of microspheres were identified as follows: 2% CG (w/v) colloidal solution, 6% CaCl2 (w/v) solution, and a 12-h curing time. After 25-day incubation with the composite prepared under optimized conditions, the removal efficiency of 1,1,1-TCA was 95.68%, which was 24.69% higher than that observed in the microcosm with a commercial remediation material. The scanning electron microscopy (SEM) images show that the amounts of ZVI and soluble starch inside the microsphere decreased obviously, while the biochar amount remained about the same. This indicates that 1,1,1-TCA in aqueous solution was mainly removed via soluble starch-enhanced biotic reductive dechlorination and ZVI enhanced abiotic reductive dechlorination. The changes in microbial community structure demonstrate that the composite stimulated the activities of functional anaerobic bacteria, in particular, regarding dechlorination and fermentation abilities in the microcosm, therefore enhancing the anaerobic biodegradation of 1,1,1-TCA. This study suggests that the composite, entrapping biochar, ZVI, and organic carbon source in CG microspheres can significantly enhance the reductive dechlorination of 1,1,1-TCA in aqueous solution. We anticipate this novel remediation material could be successfully applied to the in situ ERD remediation of natural groundwater mainly contaminated with 1,1,1-TCA. PMID- 29349740 TI - Can Cd translocation in Oryza sativa L. be attenuated by arbuscular mycorrhizal fungi in the presence of EDTA? AB - Arbuscular mycorrhizal (AM) fungi play an important role in plant tolerance of heavy metal contamination. In this study, a pot experiment was conducted to illustrate the effects of the two AM fungi species Funneliformis mosseae (Fm) and Rhizophagus irregularis (Ri) on plant growth of Oryza sativa L. either with or without ethylenediamine tetraacetate (EDTA) addition and during exposure to five Cd concentrations (in the range of 0-5 mg kg-1). The results showed that Fm inoculation achieved greater mycorrhizal colonization and mycorrhizal dependency indexes than Ri inoculation. In addition, the effects of AM fungi on Cd biosorption and translocation in rice were also investigated in the presence of EDTA. Despite cooperative adsorption, the Freundlich isotherm could describe the biosorption effects of Cd on rice roots regardless of AM fungi inoculation or EDTA addition. Cd concentrations in mycorrhizal roots increased but decreased in mycorrhizal shoots in contrast to the control treatment. Although EDTA addition negatively inhibited the uptake of Cd to mycorrhizal shoots, lower translocation factor (TF) and bioconcentration factor (BCF) were still observed in treatments with EDTA compared to control treatment. Our findings suggest that Ri and Fm inoculation enhanced Cd immobilization in the roots, thus preventing Cd entry into the food chain during exposure to low and high Cd stress, respectively. PMID- 29349741 TI - Degradation behavior of triclosan by co-exposure to chlorine dioxide and UV irradiation: influencing factors and toxicity changes. AB - This study investigated the transformation of triclosan (TCS) following co exposure to UV irradiation and ClO2. Special attention was given to understand the influencing of water quality parameters and toxicity changes during the co exposure process. The results show that the co-exposure process prompted TCS elimination quickly and effectively, with more than 99% of TCS degraded under the experimental conditions. The molar yield ratios of 2,4-dichlorophenol/TCS (2,4 DCP/TCS) were calculated to be 35.81-74.49%; however, the by-product of 2,8 dichlorodibenzop-dioxin (2,8-Cl2DD) was not detected. The TCS degradation was sensitive to ClO2 dosage, pH, H2O2, and natural organic matter (NOM), but not to the carbonate (CO32-) concentration. Neutral and slightly alkaline condition were favorable to TCS elimination. The TCS removal rate increased from 85.33 to 99.75% when the ClO2 concentration increased from 0.25 to 1.5 mg L-1. TCS degradation can be promoted at low NOM level (1, 3, and 5 mg L-1), whereas was inhibited at high NOM concentrations of 7 and 9 mg L-1. While adding H2O2, the degradation rate of TCS increased with increasing H2O2 concentration from 1 to 3 mg L-1; however, too low or overdosed H2O2 (0.5 and 5 mg L-1) hindered TCS degradation. Based on the results of a microtox bioassay, the toxicity did not change following the co-exposure process. PMID- 29349742 TI - Treatment of persistent organic pollutants in wastewater using hydrodynamic cavitation in synergy with advanced oxidation process. AB - Persistent organic pollutants (POPs) are very tenacious wastewater contaminants. The consequences of their existence have been acknowledged for negatively affecting the ecosystem with specific impact upon endocrine disruption and hormonal diseases in humans. Their recalcitrance and circumvention of nearly all the known wastewater treatment procedures are also well documented. The reported successes of POPs treatment using various advanced technologies are not without setbacks such as low degradation efficiency, generation of toxic intermediates, massive sludge production, and high energy expenditure and operational cost. However, advanced oxidation processes (AOPs) have recently recorded successes in the treatment of POPs in wastewater. AOPs are technologies which involve the generation of OH radicals for the purpose of oxidising recalcitrant organic contaminants to their inert end products. This review provides information on the existence of POPs and their effects on humans. Besides, the merits and demerits of various advanced treatment technologies as well as the synergistic efficiency of combined AOPs in the treatment of wastewater containing POPs was reported. A concise review of recently published studies on successful treatment of POPs in wastewater using hydrodynamic cavitation technology in combination with other advanced oxidation processes is presented with the highlight of direction for future research focus. PMID- 29349743 TI - Chemically and size-resolved particulate matter dry deposition on stone and surrogate surfaces inside and outside the low emission zone of Milan: application of a newly developed "Deposition Box". AB - The collection of atmospheric particles on not-filtering substrates via dry deposition, and the subsequent study of the particle-induced material decay, is trivial due to the high number of variables simultaneously acting on the investigated surface. This work reports seasonally resolved data of chemical composition and size distribution of particulate matter deposed on stone and surrogate surfaces obtained using a new method, especially developed at this purpose. A "Deposition Box" was designed allowing the particulate matter dry deposition to occur selectively removing, at the same time, variables that can mask the effect of airborne particles on material decay. A pitched roof avoided rainfall and wind variability; a standardised gentle air exchange rate ensured a continuous "sampling" of ambient air leaving unchanged the sampled particle size distribution and, at the same time, leaving quite calm condition inside the box, allowing the deposition to occur. Thus, the "Deposition Box" represents an affordable tool that can be used complementary to traditional exposure systems. With this system, several exposure campaigns, involving investigated stone materials (ISMs) (Carrara Marble, Botticino limestone, Noto calcarenite and Granite) and surrogate (Quartz, PTFE, and Aluminium) substrates, have been performed in two different sites placed in Milan (Italy) inside and outside the low emission zone. Deposition rates (30-90 MUg cm-2 month-1) showed significant differences between sites and seasons, becoming less evident considering long period exposures due to a positive feedback on the deposition induced by the deposited particles. Similarly, different stone substrates influenced the deposition rates too. The collected deposits have been observed with optical and scanning electron microscopes and analysed by ion chromatography. Ion deposition rates were similar in the two sites during winter, whereas it was greater outside the low emission zone during summer and considering the long-period exposure. The dimensional distribution of the collected deposits showed a significant presence of fine particles in agreement with deposition rate of the ionic fraction. The obtained results allowed to point out the role of the fine particles fraction and the importance of making seasonal studies. PMID- 29349746 TI - A Tribute to Professor Satimaru Seno. PMID- 29349744 TI - Alleviation of iron toxicity in Schinus terebinthifolius Raddi (Anacardiaceae) by humic substances. AB - One of the industrial pillars of Espirito Santo state, South East of Brazil, is iron-mining products processing. This activity brings to a high level of coastal pollution due to deposition of iron particulate on fragile ecosystems as mangroves and restinga. Schinus therebinthifolius (aroeira) is a widespread restinga species. This work tested iron toxicity alleviation by vermicompost humic substances (HS) added to aroeira seedlings in hydroponic conditions. Catalase, peroxidase, and ascorbate peroxidase are antioxidant enzymes that work as reactive oxygen species (ROS) scavengers: they increase their activity as an answer to ROS concentration rise that is the consequence of metal accumulation or humic substance stimulation. S. terebinthifolius seedlings treated with HS and Fe augmented their antioxidant enzyme activities significantly less than seedlings treated separately with HS and Fe; their significantly lower Fe accumulation and the slight increase of root and leaf area confirm the biostimulating effect of HS and their role in blocking Fe excess outside the roots. The use of HS can be useful for the recovery of areas contaminated by heavy metals. PMID- 29349747 TI - A Tribute to the Memory of Hisamaru Hirai, MD, PhD Professor of the Department of Hematology and Oncology Graduate School of Medicine, The University of Tokyo. PMID- 29349749 TI - Thrombosis and Thromboembolism. PMID- 29349750 TI - In Memoriam. PMID- 29349751 TI - Myelodysplastic Syndromes and Secondary Acute Myelogeneous Leukemia: Directions for the New Millennium. PMID- 29349752 TI - Tumor Angiogenesis and Microcirculation. PMID- 29349753 TI - Expensive care? Resource-based thresholds for potentially inappropriate treatment in intensive care. AB - In intensive care, disputes sometimes arise when patients or surrogates strongly desire treatment, yet health professionals regard it as potentially inappropriate. While professional guidelines confirm that physicians are not always obliged to provide requested treatment, determining when treatment would be inappropriate is extremely challenging. One potential reason for refusing to provide a desired and potentially beneficial treatment is because (within the setting of limited resources) this would harm other patients. Elsewhere in public health systems, cost effectiveness analysis is sometimes used to decide between different priorities for funding. In this paper, we explore whether cost effectiveness could be used to determine the appropriateness of providing intensive care. We explore a set of treatment thresholds: the probability threshold (a minimum probability of survival for providing treatment), the cost threshold (a maximum cost of treatment), the duration threshold (the maximum duration of intensive care), and the quality threshold (a minimum quality of life). One common objection to cost-effectiveness analysis is that it might lead to rationing of life-saving treatment. The analysis in this paper might be used to inform debate about the implications of applying cost-effectiveness thresholds to clinical decisions around potentially inappropriate treatment. PMID- 29349754 TI - Strategies to Maintain Fertility in Young Breast Cancer Patients. AB - Breast cancer is the most frequently occurring cancer in women of reproductive age. Treatments for breast cancer may eliminate or diminish fertility, making discussions about fertility preservation essential prior to initiation of gonadotoxic therapies. Additionally, even in patients who do not require chemotherapy, the use of adjuvant endocrine therapy will often push patients out of the reproductive window before treatment is completed. The only established methods for fertility preservation are oocyte or embryo cryopreservation, but experimental methods, such as ovarian suppression with GnRH agonists and ovarian tissue cryopreservation, show great promise. Early referral to a fertility specialist for interested patients affords patients the most fertility preservation options, with only minimal delay to cancer treatment. PMID- 29349755 TI - Adjuvant Endocrine Therapy. AB - The use of hormonal therapy in breast cancer has improved the overall outcome for patients with early-stage hormone receptor-positive disease. The choice of hormone therapy is related to multiple factors, including menopausal state, patient preference, and potential side effects. Molecular profiling has allowed therapy to be tailored for an individual patient to some extent. However, further molecular studies are needed to individualize the choice and length of adjuvant hormone therapy. Ongoing studies are evaluating the role of additional targeted therapies, such as CDK4/6 inhibitors, to further improve outcome for patients with early-stage hormone receptor-positive breast cancer. PMID- 29349756 TI - Breast Cancer Screening: The Debate that Never Ends. AB - Screening mammography has been shown to decrease breast cancer deaths through randomized controlled trials. However, there remains significant debate surrounding the most appropriate time to commence screening and the optimal screening interval. Several national organizations have recently updated their guidelines by reanalyzing the published data. Interestingly, each organization has come to different conclusions regarding their recommendation for breast cancer screening in the average risk woman. Three of the main organizations that issue guidelines for breast cancer screening in the United States are reviewd in this chapter. PMID- 29349757 TI - Management of the Axilla in Early Breast Cancer. AB - Management of the axilla in early breast cancer patients has significantly evolved in the last several decades. With the arrival of the sentinel lymph node biopsy, surgical practice for axillary staging in patients with early breast cancer has become gradually less invasive and formal axillary lymph node dissection has been confined to selected patients. Over the last two decades, evidence from randomized clinical trials have allowed for the de-escalation of axillary surgery in the management of early stage breast cancer. Advances in the staging and treatment of the axilla constitute a key component in determining initial surgical planning and therapeutic strategies in the treatment of early breast cancer. This chapter provides an updated review on the history, evolution, and current practices for axillary management in patients with early breast cancer, with particular attention to the surgical recommendations and controversial scenarios of the evolving management of the axilla. PMID- 29349758 TI - Is DCIS Overrated? AB - Ductal carcinoma in situ (DCIS), the noninvasive form of breast cancer (BC), comprises just over 20% of breast cancer cases diagnosed each year in the USA. Most patients are treated with local excision of the disease followed by whole breast radiation therapy. Total mastectomy is not an uncommon approach, and total mastectomy with a contralateral risk-reducing mastectomy has been on the rise in the past decade. In estrogen receptor-positive disease, patients are often offered endocrine ablative therapy with a selective estrogen receptor modulator or an aromatase inhibitor as both treatment and prevention. Local regional treatment options have no impact upon ultimate overall survival. Long-term survival rates are higher in patients with DCIS than with any other form of the disease. Are these strikingly high success rates a testament to effective treatment strategies or is there a significant subset of DCIS that was unlikely to ever progress to invasive ductal carcinoma? DCIS was not seen in the US prior to the advent of screening mammography. When compared to other countries, the USA has the highest utilization of screening mammography and the incidence rate of DCIS. Other lines of evidence include autopsy series examining the breast tissue of women who died of other causes, missed-diagnosis series and current retrospective reviews of DCIS, all align in support of the concept of DCIS as indolent in the majority of cases [3-14]. The evidence suggests that both patient and physician misconceptions about DCIS have led to overdiagnosis and over treatment of DCIS. Recently, a gene expression profiling tool (12 gene assay, Oncotype DCIS) has emerged that shows considerable promise in predicting class in DCIS patients. PMID- 29349759 TI - Readdressing the Role of Surgery of the Primary Tumor in de Novo Stage IV Breast Cancer. AB - The impressive advances in breast cancer treatment observed in recent years also apply to the metastatic setting, where a subset of patients with favorable metastatic disease enjoy long-term survival with systemic therapy. In patients with distant disease, the primary tumor in the breast has not classically been though to merit specific locoregional therapy. However, about 6% of Stage IV patients in the USA and up to 20% in limited resource environments present with synchronous distant metastases at the time of initial diagnosis. For this group, who have an intact primary tumor, retrospective studies suggest that local therapy for the primary site may be beneficial. However, these retrospective analyses are biased in that women receiving local therapy to the primary site were younger and had biologically favorable tumors and lower volume metastatic disease. Two completed randomized clinical trials have shown conflicting results, and others are ongoing. In this chapter, we discuss the results of these studies through the present day and summarize their conclusions and their implications for clinical management. PMID- 29349760 TI - Advancements and Personalization of Breast Cancer Treatment Strategies in Radiation Therapy. AB - Significant technologic advances in radiation treatment delivery now allow for more personalized delivery considerations which incorporate individual patient characteristics (such as tumor location and patient anatomy) and more precise delivery in the breast conservation or post-mastectomy setting. The combined advancements with other treatment modalities (i.e., systemic therapy, surgical management) have had direct effects on local-regional management and outcomes such that currently, local-regional relapses after definitive treatment for localized disease are now rarely experienced. Recent advances in the radiation therapy field have come from careful patient selection for a variety of three dimensional treatment delivery techniques and alternatives to conventional tangential radiation. These advances have been demonstrated to diminished acute/long-term toxicity, minimized dose to surrounding normal tissue structures such as the heart and lung, and ultimately result in an improvement in the therapeutic ratio for radiation treatment. This chapter discusses recent radiation innovations and appropriate patient selection for their application, for a more personalized approach to radiation therapy for breast cancer patients. PMID- 29349761 TI - Multi-gene Panel Testing in Breast Cancer Management. AB - Hereditary predisposition accounts for approximately 10% of all breast cancers and is mostly associated with germline mutations in high-penetrance genes encoding for proteins participating in DNA repair through homologous recombination (BRCA1 and BRCA2). With the advent of massive parallel next generation DNA sequencing, simultaneous analysis of multiple genes with a short turnaround time and at a low cost has become possible. The clinical validity and utility of multi-gene panel testing is getting better characterized as more data on the significance of moderate-penetrance genes are collected from large, cancer genetic testing studies. In this chapter, we attempt to provide a general guide for interpretation of panel gene testing in breast cancer and use of the information obtained for clinical decision-making. PMID- 29349762 TI - Advances in Endocrine Therapy for Postmenopausal Metastatic Breast Cancer. AB - A majority of breast cancers are hormone receptor (HR) positive and are responsive to various types of hormone manipulation. Endocrine therapy is the preferred first-line therapy for patients with advanced estrogen receptor (ER) positive, HER2-negative breast cancer who do not have symptomatic visceral disease. Endocrine therapy is often continued in the second- and third-line setting, with chemotherapy deferred until tumor becomes endocrine therapy refractory and/or a visceral crisis in imminent. Therapeutic options vary based on clinical presentation and include single-agent therapies such as tamoxifen, aromatase inhibitors and fulvestrant, and combination therapies options. Over the past few years, multiple trials have shown significant improvement in outcomes when endocrine therapy is combined with CDK 4/6 inhibitors or mTOR inhibitors. Improved efficacy comes at a cost of a modest increase in toxicity. Mechanisms of ER resistance have been defined leading to multiple strategies to improve efficacy and overcome resistance. These include the combination therapies options mentioned above and other novel drugs that are in development. This review will summarize the existing literature regarding endocrine therapy in postmenopausal metastatic breast cancer and outline treatment approaches in the first-line metastatic setting and beyond. PMID- 29349763 TI - Immune Checkpoint Blockade for Breast Cancer. AB - An effective antitumor immune response requires interaction between cells of the adaptive and innate immune system. Three key elements are required: generation of activated tumor-directed T cells, infiltration of activated T cells into the tumor microenvironment, and killing of tumor cells by activated T cells. Tumor immune evasion can occur as a result of the disruption of each of these three key T cell activities, resulting in three distinct cancer-immune phenotypes. The immune inflamed phenotype, characterized by the presence of a robust tumor immune infiltrate, suggests impaired activated T cell killing of tumor cells related to the presence of inhibitory factors. Programmed death receptor-1 (PD-1) is an inhibitory transmembrane protein expressed on T cells, B cells, and NK cells. The interaction between PD-1 and its ligands (PD-L1/L2) functions as an immune checkpoint against unrestrained cytotoxic T effector cell activity-it promotes peripheral T effector cell exhaustion and conversion of T effector cells to immunosuppressive T regulatory (Treg) cells. Immune checkpoint inhibitors, which block the PD-1/PD-L1 axis and reactivate cytotoxic T effector cell function, are actively being investigated for the treatment of breast cancer. PMID- 29349765 TI - Issues in stem cells in Asia and SNAP decisions. PMID- 29349764 TI - Sexual Function Post-Breast Cancer. AB - The consequences of estrogen deprivation and therapeutic interventions such as radiation, chemotherapy and surgery have a significant negative impact on libido, sexual arousal, orgasmic function and the ability to have pleasurable intercourse. Evaluation and treatment of female sexual dysfunction is a significant unmet need in the breast cancer survivor in spite of the availability of safe and effective treatments. PMID- 29349766 TI - Constant existence of the sensory branch of the nerve to the pyramidalis distributing to the upper margin of the pubic ramus. AB - Twenty-one sides of 11 adult Japanese cadavers were investigated, and 2 of 21 sides exhibited absence of the pyramidalis. We observed that all of the nerves to the pyramidalis included the sensory nerve branch, which distributed to the aponeurotic tissue in the upper area of the pubic ramus. To investigate the clinical relevance and developmental process of the pyramidalis, detailed innervation patterns of the pyramidalis and the lumber plexus were examined and compared with the case of absent pyramidalis. The nerves to the pyramidalis could be classified into five types by the derivative nerves and two subtypes by their courses associated with the funiculus spermaticus. In the cases of absent pyramidalis, similar sensory branches distributed close to the upper area of the pubic ramus. We deduced that the sensory branch extended along with the muscular branch to the pyramidalis after development of the pyramidalis and that only the sensory branch remained in cases in which the pyramidalis disappeared. The two subtypes might associate with descensus testis. Surgeons performing inguinal hernia repair using a mesh and tension-free surgical technique should preserve the nerves around the funiculus spermaticus to avoid diminished proprioception in the lower abdominal wall. PMID- 29349768 TI - GCN2 deficiency protects mice from denervation-induced skeletal muscle atrophy via inhibiting FoxO3a nuclear translocation. PMID- 29349769 TI - Examining Character Structure and Function Across Childhood and Adolescence. AB - Character strengths are an integral component of positive youth development that can promote flourishing. Developmental principles posit constructs become increasingly complex with age, yet this process has not been examined with character. Using a socioeconomically and ethnically diverse sample of 2,467 youth ages 9-19, bifactor models were estimated across elementary, middle, and high school-age groups to examine age differences in character structure and function. With successive age, a greater number of specific character strength factors were identified, suggesting character structure becomes more differentiated across adolescence. Results linking character bifactor models to indicators of positive functioning also supported differentiation in character function across ages. Findings point to the need for theoretical and empirical considerations of character structure and function across development. PMID- 29349770 TI - Retrospective audit of patients referred for further treatment following Mohs surgery for non-melanoma skin cancer. AB - BACKGROUND/OBJECTIVES: To describe the characteristics, subsequent management and outcomes of patients referred for further management following Mohs micrographic surgery (MMS) for basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). METHODS: Retrospective analysis of patients referred to a quaternary cancer centre from 2000 to 2015. RESULTS: In total, 83 lesions in 82 patients were referred for further management; 52 (62%) were SCC and 80 (96%) were located in the head and neck. Reasons for referral included high-risk disease for consideration for adjuvant radiotherapy (37/83, 45%), inadequate resection (28/83, 34%) or recurrence following previous MMS (15/83, 17%). Fewer than 40% of the 69 referrals received from MMS surgeons included photos or an operative report and diagram. There was discordance in pathology opinion in 11 (13%) of cases. Histopathology from MMS was reviewed in eight cases and there was discordance with the in-hospital pathology opinion in six of these. In-hospital re-excision was performed in 19 cases and in five of these the pathology report on the paraffin-sectioned re-excised tissue was discordant with prior MMS assessment. Significantly, two cases were associated with a misinterpretation of lymphocytic infiltrate as residual disease in patients with chronic lymphocytic leukaemia (CLL). CONCLUSION: This study highlights some of the challenges and limitations of MMS. Early referral for multidisciplinary management is recommended when MMS resection margins are inadequate or uncertain, especially for high-risk SCC. We recommend that referrals be accompanied by histological material, as well as a detailed report with operative photos and diagrams. CLL can pose an intraoperative diagnostic challenge. Discrepancies in the interpretation of MMS slides present an opportunity for improvement, and our findings support the role of ongoing quality assurance programs. PMID- 29349771 TI - CYP2D6 Protein Level Is the Major Contributor to Interindividual Variability in CYP2D6-Mediated Drug Metabolism in Healthy Human Liver Tissue. AB - CYP2D6 genetic polymorphisms are considered a major contributor to the large interindividual variability in CYP2D6-mediated drug metabolism, but fail to explain a significant portion of the variability. The aim of this study was to assess the ability of the CYP2D6 activity score (AS) estimated from CYP2D6 genotype to predict CYP2D6 expression and enzyme activity. The CYP2D6 gene region was sequenced in 115 healthy human liver tissue samples to determine their CYP2D6 AS. Additionally, CYP2D6 enzyme activity, protein, and mRNA levels were estimated. CYP2D6 AS explained 23% of the interindividual variability in CYP2D6 activity, but only 7.5% in tissues assigned AS 1-2. The CYP2D6 protein level was found to be the major determinant of CYP2D6 activity, explaining 59% of variability. These findings suggest that while CYP2D6 AS is a good predictor of poor metabolizer phenotype, additional nongenetic factors may govern the rate of CYP2D6-mediated metabolism in those without the poor metabolizer phenotype. PMID- 29349772 TI - Does the Use of Diagnostic Technology Reduce Fetal Mortality? AB - OBJECTIVE: To examine the effect that the introduction of new diagnostic technology in obstetric care has had on fetal death. DATA SOURCE: The Medical Birth Registry of Norway provided detailed medical information for approximately 1.2 million deliveries from 1967 to 1995. Information about diagnostic technology was collected directly from the maternity units, using a questionnaire. STUDY DESIGN: The data were analyzed using a hospital fixed-effects regression with fetal mortality as the outcome measure. The key independent variables were the introduction of ultrasound and electronic fetal monitoring at each maternity ward. Hospital-specific trends and risk factors of the mother were included as control variables. The richness of the data allowed us to perform several robustness tests. PRINCIPAL FINDING: The introduction of ultrasound caused a significant drop in fetal mortality rate, while the introduction of electronic fetal monitoring had no effect on the rate. In the population as a whole, ultrasound contributed to a reduction in fetal deaths of nearly 20 percent. For post-term deliveries, the reduction was well over 50 percent. CONCLUSION: The introduction of ultrasound made a major contribution to the decline in fetal mortality at the end of the last century. PMID- 29349773 TI - Progestin-only and combined oral contraceptives and receptor-defined premenopausal breast cancer risk: The Norwegian Women and Cancer Study. AB - Receptor-defined subtypes of breast cancer represent distinct cancer types and have differences in risk factors. Whether the two main hormonal forms of oral contraceptives (OCs); i.e. progestin-only (POC) and combined oral contraceptives (COC), are differentially associated with these subtypes are not well known. The aim of our study was to assess the effect of POC and COC use on hormone receptor defined breast cancer risk in premenopausal women in a prospective population based cohort - The Norwegian Women and Cancer Study (NOWAC). Information on OC use was collected from 74,862 premenopausal women at baseline. Updated information was applied when follow-up information became available. Multiple imputation was performed to handle missing data, and multivariable Cox regression models were used to calculate hazard ratios (HR) for breast cancer. 1,245 incident invasive breast cancer cases occurred. POC use >=5 years was associated with ER+ (HR = 1.59, 95% CI 1.09- 2.32, ptrend = 0.03) and ER+/PR+ cancer (HR = 1.63, 95% CI 1.07-2.48, ptrend = 0.05), and was not associated with ER- (pheterogeneity = 0.36) or ER-/PR- (pheterogeneity = 0.49) cancer. COC use was associated with ER- and ER-/PR- cancer, but did not increase risk of ER+ and ER+/PR+ cancer. Current COC use gave different estimates for ER/PR-defined subtypes (pheterogeneity = 0.04). This is the first study to show significant associations between POC use and hormone receptor-positive breast cancer. The lack of power to distinguish effects of POC use on subtype development calls for the need of larger studies to confirm our finding. PMID- 29349774 TI - The vaccine adjuvant alum promotes IL-10 production that suppresses Th1 responses. AB - The effectiveness of many vaccines licensed for clinical use relates to the induction of neutralising antibodies, facilitated by the inclusion of vaccine adjuvants, particularly alum. However, the ability of alum to preferentially promote humoral rather than cellular, particularly Th1-type responses, is not well understood. We demonstrate that alum activates immunosuppressive mechanisms following vaccination, which limit its capacity to induce Th1 responses. One of the key cytokines limiting excessive immune responses is IL-10. Injection of alum primed draining lymph node cells for enhanced IL-10 secretion ex vivo. Moreover, at the site of injection, macrophages and dendritic cells were key sources of IL 10 expression. Alum strongly enhanced the transcription and secretion of IL-10 by macrophages and dendritic cells. The absence of IL-10 signalling did not compromise alum-induced cell infiltration into the site of injection, but resulted in enhanced antigen-specific Th1 responses after vaccination. In contrast to its decisive regulatory role in regulating Th1 responses, there was no significant change in antigen-specific IgG1 antibody production following vaccination with alum in IL-10-deficient mice. Overall, these findings indicate that injection of alum promotes IL-10, which can block Th1 responses and may explain the poor efficacy of alum as an adjuvant for inducing protective Th1 immunity. PMID- 29349775 TI - The association between borderline pre-operative anaemia in women and outcomes after cardiac surgery: a cohort study. AB - Anaemia is common before cardiac surgery and is associated with increased morbidity and mortality. The World Health Organization (WHO) definition of anaemia is lower for women than for men by 10 g.l-1 , potentially putting women at a disadvantage compared with men with regard to pre-operative optimisation. Our hypothesis was that women with borderline anaemia (defined by us as haemoglobin concentration 120-129 g.l-1 ) would have a higher rate of red cell transfusion, morbidity and mortality than non-anaemic women (haemoglobin >= 130 g.l-1 ). This retrospective observational study included all adult patients admitted for elective cardiac surgery from January 2013 to April 2016. During the study period, 1388 women underwent cardiac surgery. Pre-operatively, 333 (24%) had a haemoglobin level < 120 g.l-1 ; 408 (29%) 120-129 g.l-1 ; and 647 (47%) >= 130 g.l-1 . Compared with non-anaemic women, women with borderline anaemia were more likely to be transfused (68.6% vs. 44.5%; RR 1.5, 95%CI 1.4-1.7; p < 0.0001) and were transfused with more units of red cells, mean (SD) 1.8 (2.8) vs. 1.3 (3.0); p < 0.0001. Hospital length of stay was significantly longer in the borderline anaemia group compared with non-anaemic women, median (IQR [range]) 8 (6-12 [3-45]) vs. 7 (6-11 [4-60]); p = 0.0159. Short- and long-term postoperative survival was comparable in both groups. Borderline anaemia is associated with increased red cell transfusion and prolonged hospital stay. Future research should address whether correction of borderline anaemia results in improved outcomes. PMID- 29349776 TI - Effect of palpable vs. impalpable cricothyroid membranes in a simulated emergency front-of-neck access scenario. AB - The Difficult Airway Society 2015 guidelines recommend and describe in detail a surgical cricothyroidotomy technique for the can't intubate, can't oxygenate (CICO) scenario, but this can be technically challenging for anaesthetists with no surgical training. Following a structured training session, 104 anaesthetists took part individually in a simulated can't intubate, can't oxygenate event using simulation and airway models to evaluate how well they could perform these front of-neck access techniques. Main outcomes measures were: ability to correctly perform the technical steps; procedural time; and success rate. Outcomes were compared between palpable and impalpable cricothyroid membrane scenarios. Anaesthetists' technical abilities were good, as assessed by a video analysis checklist score. Mean (SD) procedural time was 44 (16) s and 65 (17) s for the palpable and impalpable cricothyroid membrane models, respectively (p <= 0.001). First-pass tracheal tube placement was obtained in 103 out of the 104 palpable cricothyroidotomies and in 101 out of the 104 impalpable cricothyroidotomies (p = 0.31). We conclude that anaesthetists can be trained to perform surgical front-of neck access to an acceptable level of competence and speed when assessed using a simulator. PMID- 29349777 TI - In-bed cycling in the ICU; patient safety and recollections with motivational effects. AB - BACKGROUND: In-bed cycling (IBC) is gaining interest for implementation in intensive care units. Our main objective was to explore patient recollections and experiences of early mobilization, including IBC. Secondly, we aimed to examine if IBC was safe and feasible. METHODS: Eleven participants were interviewed about their experiences during their critical illnesses and active mobilization in the intensive care unit. The interviews were analyzed thematically. Six participants were also monitored for physiological reactions and adverse events during IBC while mechanically ventilated. RESULTS: From the interviews, one main theme with three subthemes was identified. The main theme was: Early mobilization gave a direction toward normalization. The three subthemes were: (1) IBC gave a feeling of control over recovery early on during the critical illness (2) Early mobilization, including IBC, with continuous support from health care professionals gave a feeling of safety and hope for recovery for the patient; and (3) Unpleasant experiences and disorientation were felt during the critical illness and IBC. Furthermore, IBC did not induce large physiological changes or major adverse events in the participants who were monitored for feasibility and safety. CONCLUSIONS: Patient interviews indicated that the patients' participation in early mobilization with emphasis on IBC motivated them to be active in their recovery to regain a good level of health after their earlier critical illness during their intensive care stay. IBC was, in this small study, safe and feasible in the two participating intensive care units. PMID- 29349778 TI - Intrathecal baclofen therapy in children: an analysis of individualized goals. AB - AIM: To determine whether intrathecal baclofen (ITB) therapy improves performance and performance satisfaction in goal areas identified by patients' parents. METHOD: This study formed part of an ongoing multicentre national audit involving six paediatric ITB pump implant centres across Australia. The Canadian Occupational Performance Measure was the primary outcome measure utilized at baseline, 6 months, and 12 months after pump implants in paediatric patients receiving ITB therapy for the first time between 31st December 2009 and 31st December 2014. RESULTS: Twenty-five children had goals identified (mean age 11y 1mo), 19 had a diagnosis of cerebral palsy and 22 were at Gross Motor Function Classification System level IV, V, or equivalent. Strong evidence for an improvement in goal performance (2.33, 95% CI 1.70, 2.96, p<0.001) and performance satisfaction scores (3.08, 95% CI 2.28, 3.88, p<0.001) were demonstrated at 6 months, compared to baseline. The differences were clinically significant and were sustained to 12 months. INTERPRETATION: ITB therapy in paediatric patients with hypertonia results in clinically significant improvements in average performance and performance satisfaction scores. WHAT THIS PAPER ADDS: The most commonly identified goals of parents of children treated with intrathecal (ITB) therapy were: improving ease of dressing, positioning, and transfers. ITB therapy is effective in improving performance and performance satisfaction in children with hypertonia. Score improvements are mainly evident within the first 6 months of therapy. PMID- 29349779 TI - Skeletogenesis in the Persian sturgeon Acipenser persicus and its correlation with gene expression of vitamin K-dependent proteins during larval development. AB - The present study describes morphological development of the skeleton in the Persian sturgeon Acipenser persicus and discusses the hypothesis that expression of genes encoding vitamin K-dependent proteins (VKDP) might be correlated with the mineralization of skeletal tissues during early development in sturgeons. Results showed that development of cartilage started just after hatching (mean +/ S.D., 10.9 +/- 0.7 mm in total length, LT ) in the head and notochord, whereas the first signs of mineralization occurred in the dentary and in the dermopalatine and palatopterygoid elements of the upper jaw, coinciding with the onset of exogenous feeding (20.1 +/- 1.5 mm LT ). All branchial arch elements developed between 19.3 and 22.3 mm LT , whereas mineralization was only observed in tooth plates associated with the hypobranchial 1 and gill rakers at 20.8 +/- 1.5 mm LT and 48.4 +/- 6.4 mm LT , respectively. Quantitative real-time PCR showed that transcripts of VKDP genes including bone Gla protein (bgp), matrix Gla protein (mgp) and Gla rich protein (grp) genes were significantly up regulated during the transition to exogenous feeding, supporting hypotheses about relevance of the above-mentioned genes in chondrogenesis at early developmental stages. The strong mineralization of skeletal elements from 21.5 to 27.3 mm LT (20 days post hatch) was in accordance with the maximal levels of bgp, mgp and grp expression indicating a correlation between development of the skeleton and the expression of VKDP genes. These data are important for evaluating A. persicus larval quality, understanding the influence of rearing biotic and abiotic factors on skeletogenesis and recognizing the occurrence of skeletal deformities in this species. PMID- 29349780 TI - Protective Effect of BLED-exposed Conditioned Media on Cell Injury. AB - Previous studies have reported that 450 nm blue light emitting diode (BLED) induces apoptosis through a mitochondria-mediated pathway in cancer cells and reduces the early stage tumor growth. This study was performed to determine the effects of BLED-irradiated cell metabolites on cell injury. Our results showed that conditioned medium (CM) from cells irradiated with low-dose BLED (LCM) inhibited apoptosis and increased cell survival. Cell protection-related proteins were identified in cell metabolites of CM and LCM using 2-DE and MALDI-TOF analysis. Treatment with LCM inhibited apoptotic cell death and increased the live cell population. The cellular protective effect of LCM was associated with keratin and collagen type VI secretion from cells after low dose of BLED irradiation. Interestingly, expression of endoplasmic reticulum stress proteins was dose dependently increased after 4 h BLED irradiation. Only levels of BiP, CHOP and ERO1-Lalpha were decreased significantly after 24 h incubation, indicating their anti-apoptotic property in these cells. These results indicated that cell metabolites stimulated by low-dose BLED irradiation have a cytoprotective effect on cell injury via increasing transient intracellular ER stress. Further studies remain to provide the molecular mechanisms of LCM for cytoprotective activity. PMID- 29349781 TI - Mirror neurons and intention understanding: Dissociating the contribution of object type and intention to mirror responses using electromyography. AB - Since their discovery in the monkey and human brain, mirror neurons have been claimed to play a key role in understanding others' intentions. For example, "action-constrained" mirror neurons in inferior parietal lobule fire when the monkey observes a grasping movement that is followed by an eating action, but not when it is followed by a placing action. It is claimed these responses enable the monkey to predict the intentions of the actor. These findings have been replicated in human observers by recording electromyography responses of the mouth-opening mylohyoid muscle during action observation. Mylohyoid muscle activity was greater during the observation of actions performed with the intention to eat than of actions performed with the intention to place, again suggesting an ability to predict the actor's intentions. However, in previous studies, intention was confounded with object type (food for eating actions, nonfood for placing actions). We therefore used electromyography to measure mylohyoid activity in participants observing eating and placing actions. Unlike previous studies, we used a design in which each object (food, nonfood) could be both eaten and placed, and thus participants could not predict the actor's intention at the onset of the action. Greater mylohyoid activity was found for the observation of actions performed on food objects, irrespective of intention, indicating that the object type, not the actor's intention, drives the mirror response. This result suggests that observers' motor responses during action observation reflect the presence of a particular object, rather than the actor's underlying intentions. PMID- 29349782 TI - New species of the genus Spectracanthicus (Loricariidae, Hypostominae, Ancistrini) from the Rio Javaes (Rio Araguaia basin), with a description of gross brain morphology. AB - A new species of Spectracanthicus is described from the Rio Javaes, Rio Araguaia basin. The new species is distinguished from its congeners (except Spectracanthicus immaculatus) by colour pattern: body dark grey to dark brown without dots or blotches (v. body colour with yellowish small dots in Spectracanthicus murinus, Spectracanthicus punctatissimus and Spectracanthicus tocantinensis and large white dots in Spectracanthicus zuanoni). It can be further distinguished from S. immaculatus by having thicker and less numerous teeth, with up to eight premaxillary and 20 dentary teeth (v. teeth thinner and more numerous with up to 22 premaxillary and 30 dentary teeth); dorsal and caudal fins without curved spines (v. dorsal and caudal fins with curved spines). Other osteological characters can also diagnose the new species from its congeners. In addition, a gross brain description and brief comments on the new species' ecological habitat are given. PMID- 29349783 TI - Development of Cotton Fabrics with Durable UV Protective and Self-cleaning Property by Deposition of Low TiO2 Levels through Sol-gel Process. AB - In this article, the deposition of TiO2 on cotton fabric using sol-gel technique has been described. Various process routes (pad-dry-cure, pad-dry-hydrothermal and pad-dry-solvothermal) were examined to impart a stable coating of TiO2 on fabric. The role of precursor concentration, process temperature and time of treatment were studied to aim at a wash durable, UV protective and self-cleaning property in the treated fabric. EDX and ICP-MS techniques were used to examine the add-on percentage of TiO2 on cotton fabrics treated via different routes. It has been found that the TiO2 remains largely amorphous and nondurable if it is given a short thermal treatment. To convert the deposited TiO2 to its anatase crystal form, a prolonged hydrothermal treatment for at least 3 h needs to be given. TiO2 deposition levels of less than 0.1% were found to be effective in imparting reasonable degree of UV protection and self-cleaning property to the cotton fabric. The self-cleaning ability of the treated fabric against coffee stain was also studied and was found to be related to the process route and the deposition levels of TiO2 . PMID- 29349784 TI - Magnetic molecularly imprinted polymers based on silica modified by deep eutectic solvents for the rapid simultaneous magnetic-based solid-phase extraction of Salvia miltiorrhiza bunge, Glycine max (Linn.) Merr and green tea. AB - Novel magnetic molecularly imprinted polymers (MMIPs) with multiple-template based on silica were modified by four types of deep eutectic solvents (DESs) for the rapid simultaneous magnetic solid-phase extraction (MSPE) of tanshinone I, tanshinone IIA, and cryptotanshinone from Salvia miltiorrhiza bunge; glycitein, genistein, and daidzein from Glycine max (Linn.) Merr; and epicatechin, epigallocatechin gallate, and epicatechin gallate from green tea, respectively. The synthesized materials were characterized by Fourier transform infrared spectroscopy and field emission scanning electron microscopy. Single factor experiments were to explore the relationship between the extraction efficiency and four factors (the sample solution pH, amount of DESs for modification, amount of adsorbent, and extraction time). It was showed that the DES4-MMIPs have better extraction ability than the MMIPs without DESs and the other three DESs-modified MMIPs. The best extraction recoveries with DES4-MMIP were tanshinone I (85.57%), tanshinone IIA (80.58%), cryptotanshinone (92.12%), glycitein (81.65%), genistein (87.72%), daidzein (92.24%), epicatechin (86.43%), epigallocatechin gallate (80.92%), and epicatechin gallate (93.64%), respectively. The novel multiple template MMIPs materials modified by DES for the rapid simultaneous MSPE of active compounds were proved to reduce the experimental steps than single template technique, and increase the extraction efficiency. PMID- 29349785 TI - A novel MLPH variant in dogs with coat colour dilution. AB - Coat colour dilution may be the result of altered melanosome transport in melanocytes. Loss-of-function variants in the melanophilin gene (MLPH) cause a recessively inherited form of coat colour dilution in many mammalian and avian species including the dog. MLPH corresponds to the D locus in many domestic animals, and recessive alleles at this locus are frequently denoted with d. In this study, we investigated dilute coloured Chow Chows whose coat colour could not be explained by their genotype at the previously known MLPH:c.-22G>A variant. Whole genome sequencing of such a dilute Chow Chow revealed another variant in the MLPH gene: MLPH:c.705G>C. We propose to designate the corresponding mutant alleles at these two variants d1 and d2 . We performed an association study in a cohort of 15 dilute and 28 non-dilute Chow Chows. The dilute dogs were all either compound heterozygous d1 /d2 or homozygous d2 /d2 , whereas the non-dilute dogs carried at least one wildtype allele D. The d2 allele did not occur in 417 dogs from diverse other breeds. However, when we genotyped a Sloughi family, in which a dilute coloured puppy had been born out of non-dilute parents, we again observed perfect co-segregation of the newly discovered d2 allele with coat colour dilution. Finally, we identified a blue Thai Ridgeback with the d1 /d2 genotype. Thus, our data identify the MLPH:c.705G>C as a variant explaining a second canine dilution allele. Although relatively rare overall, this d2 allele is segregating in at least three dog breeds, Chow Chows, Sloughis and Thai Ridgebacks. PMID- 29349786 TI - Acute lion's mane jellyfish, Cyanea capillata (Cnideria: Scyphozoa), exposure to Atlantic salmon (Salmo salar L.). AB - Jellyfish-induced gill pathology relies upon occasional diagnostic observations yet the extent and impact of jellyfish blooms on aquaculture may be significant. Idiopathic gill lesions are often observed in apparently healthy fish. This study exposed Atlantic salmon (Salmo salar L.) smolts to macerated Cyanea capillata at 2.5 and 5 g/L for 2 hr under controlled laboratory conditions. Blood chemistry and gill histopathology were examined over a subsequent 4-week period. Fish showed an acute response to the presence of jellyfish, including characteristic external "whiplash" discoloration of the skin and acute increases in blood electrolytes and CO2 concentration; however, these were resolved within 4 days after exposure. Histopathologically, gills showed first an acute oedema with epithelial separation followed by focal haemorrhage and thrombus formation, and then progressive inflammatory epithelial hyperplasia that progressively resolved over the 4 weeks post-exposure. Results were consistent with the envenomation of gills with cytotoxic neurotoxins and haemolysins known to be produced by C. capillata. This study suggests that many focal hyperplastic lesions on gills, especially those involving focal thrombi, may be the result of jellyfish stings. Thus, the presence of jellyfish and their impact may be severe and understated in terms of marine fish aquaculture and fish welfare. PMID- 29349787 TI - Treatment of lumpfish (Cyclopterus lumpus L.) infected with Gyrodactylus cyclopteri (Scyborskaya 1948). PMID- 29349788 TI - Roles of water quality and disinfectant application on inactivation of fish pathogenic Streptococcus agalactiae with povidone iodine, quaternary ammonium compounds and glutaraldehyde. AB - Streptococcosis is an important bacterial disease in Nile tilapia causing severe economic losses to tilapia aquaculture worldwide. The effects of water quality (low- [LS] and high-level [HS] soiling, to mimic clean or dirty surface conditions and temperatures) and disinfectant application (diluted concentrations and exposure time) were characterized on the inactivation of Streptococcus agalactiae isolated from diseased tilapia. Five isolates were tested against three commercial disinfectant products with the main ingredients being povidone iodine (Anidine 100TM; AD), benzalkonium chloride (Better BKC 80%TM; BKC 80), and a mixture of quaternary ammonium compounds and glutaraldehyde (ChloraldehydeTM; CR). CR demonstrated highest efficacy to S. agalactiae inactivation, followed by BKC 80 and AD, respectively. Higher-level soiling, low temperature, diluted concentrations and short exposure time all decreased the disinfectant efficacy. CR and BKC 80 provided more than 5-log inactivation at 1-min exposure at 20 degrees C under HS conditions, and also with ten-fold-diluted concentrations at 60-min exposure time at 30 degrees C. However, AD required 10-min exposure to effectively remove bacteria under LS conditions at 30 degrees C. The results could facilitate aquaculture management planning that leads to operating cost reductions and improvements in biosecurity. PMID- 29349789 TI - Postmarketing cases of eluxadoline-associated pancreatitis in patients with or without a gallbladder. AB - BACKGROUND: Cases of pancreatitis were identified in the eluxadoline clinical development program, reflected in initial product labelling, and the subject of postmarketing reports. AIM: To analyse postmarketing cases of eluxadoline associated pancreatitis. METHODS: We retrospectively analysed all US adverse event reports of pancreatitis associated with eluxadoline reported to the FDA Adverse Event Reporting System (FAERS) database from May 27, 2015 through February 15, 2017. RESULTS: The analysis included 119 cases of pancreatitis associated with eluxadoline; one resulted in death and 75 in hospitalisation. Sixty-seven cases reported the presence (n = 12) or absence (n = 55) of the patient's gallbladder. The eluxadoline dose received in the 55 cases of patients without gallbladders was 75 mg (n = 43), 100 mg (n = 5), or not reported (n = 7). Of the 119 cases, 37 reported the patient did not abuse alcohol and 82 did not report the alcohol abuse status. The single fatal case occurred in a patient without a gallbladder who received eluxadoline 75 mg and did not abuse alcohol. Forty-seven cases reported development of pancreatitis within the first or second dose of eluxadoline initiation. The median time to onset for the development of pancreatitis (n = 83) was 1 day, ranging from 1 to 56 days of continued use of eluxadoline. CONCLUSION: The FAERS cases suggest that patients with or without a gallbladder receiving eluxadoline are at risk for the development of pancreatitis. However, patients without a gallbladder, despite receiving the recommended lower dose of eluxadoline 75 mg and screening for alcohol abuse, appear to be overrepresented among patients who developed eluxadoline-associated pancreatitis. PMID- 29349790 TI - Identification of the absorbed components and metabolites of modified Huo Luo Xiao Ling Dan in rat plasma by UHPLC-Q-TOF/MS/MS. AB - To reveal the material basis of Huo Luo Xiao Ling Dan (HLXLD), a sensitive and selective ultra-high performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF/MS) method was developed to identify the absorbed components and metabolites in rat plasma after oral administration of HLXLD. The plasma samples were pretreated by liquid-liquid extraction and separated on a Shim-pack XR-ODS C18 column (75 * 3.0 mm, 2.2 MUm) using a gradient elution program. With the optimized conditions and single sample injection of each positive or negative ion mode, a total of 109 compounds, including 78 prototype compounds and 31 metabolites, were identified or tentatively characterized. The fragmentation patterns of representative compounds were illustrated as well. The results indicated that aromatization and hydration were the main metabolic pathways of lactones and tanshinone-related metabolites; demethylation and oxidation were the major metabolic pathways of alkaloid-related compounds; methylation and sulfation were the main metabolic pathways of phenolic acid-related metabolites. It is concluded the developed UHPLC-Q-TOF/MS method with high sensitivity and resolution is suitable for identifying and characterizing the absorbed components and metabolites of HLXLD, and the results will provide essential data for further studying the relationship between the chemical components and pharmacological activity of HLXLD. PMID- 29349791 TI - Predicting patterns of change and stability in student performance across a medical degree. AB - CONTEXT: Evidence of predictive validity is essential for making robust selection decisions in high-stakes contexts such as medical student selection. Currently available evidence is limited to the prediction of academic performance at single points in time with little understanding of the factors that might undermine the predictive validity of tests of academic and non-academic qualities considered important for success. This study addressed these issues by predicting students' changing performance across a medical degree and assessing whether factors outside an institution's control (such as the uptake of commercial coaching) impact validity. METHODS: Three cohorts of students (n = 301) enrolled in an undergraduate medical degree from 2007-2013 were used to identify trajectories of student academic performance using growth mixture modelling. Multinomial logistic regression assessed whether past academic performance, a test of cognitive ability and a multiple mini-interview could predict a student's likely trajectory and whether this predictive validity was different for those who undertook commercial coaching compared with those who didn't. RESULTS: Among the medical students who successfully graduated (n = 268), four unique trajectories of academic performance were identified. In three trajectories, performance changed at the time when learning became more self-directed and focused on clinical specialties. Scores on all selection tests, with the exception of a test of abstract reasoning, significantly affected the odds of following a trajectory that was consistently below average. However, selection tests could not distinguish those whose performance improved across time from those whose performance declined after an average start. Commercial coaching increased the odds of being among the below-average performers, but did not alter the predictive validity of the selection tests. CONCLUSION: Identifying distinct groups of students has important implications for selection, but also for educating medical students. Commercial coaching may result in selecting students who are less suited for coping with the rigours of medical studies. PMID- 29349792 TI - Meta-analysis of Gaussian individual patient data: Two-stage or not two-stage? AB - Quantitative evidence synthesis through meta-analysis is central to evidence based medicine. For well-documented reasons, the meta-analysis of individual patient data is held in higher regard than aggregate data. With access to individual patient data, the analysis is not restricted to a "two-stage" approach (combining estimates and standard errors) but can estimate parameters of interest by fitting a single model to all of the data, a so-called "one-stage" analysis. There has been debate about the merits of one- and two-stage analysis. Arguments for one-stage analysis have typically noted that a wider range of models can be fitted and overall estimates may be more precise. The two-stage side has emphasised that the models that can be fitted in two stages are sufficient to answer the relevant questions, with less scope for mistakes because there are fewer modelling choices to be made in the two-stage approach. For Gaussian data, we consider the statistical arguments for flexibility and precision in small sample settings. Regarding flexibility, several of the models that can be fitted only in one stage may not be of serious interest to most meta-analysis practitioners. Regarding precision, we consider fixed- and random-effects meta analysis and see that, for a model making certain assumptions, the number of stages used to fit this model is irrelevant; the precision will be approximately equal. Meta-analysts should choose modelling assumptions carefully. Sometimes relevant models can only be fitted in one stage. Otherwise, meta-analysts are free to use whichever procedure is most convenient to fit the identified model. PMID- 29349793 TI - The effectiveness and safety of ledipasvir plus sofosbuvir in adolescents with chronic hepatitis C virus genotype 4 infection: a real-world experience. AB - BACKGROUND: The combination of ledipasvir plus sofosbuvir was recently approved for treatment of adolescent (12-17 years) HCV genotype 1, 4, 5 & 6 patients. However, few clinical trials have been performed in genotype 1 patients. AIM: To investigate the effectiveness and safety of ledipasvir plus sofosbuvir in chronic HCV adolescent patients with genotype 4 in the real world. METHODS: This prospective multicentre (six centres) open-label study included 144 adolescent chronic HCV patients with genotype 4 (mean age 14 +/- 2, 69% males). All patients received a combination tablet containing 400 mg sofosbuvir and 90 mg ledipasvir once daily for 12 weeks. Laboratory and virological markers were evaluated at baseline, week 4, week 8 and week 12 (EOT), and 12 weeks after end of treatment (SVR12). RESULTS: SVR12 was observed in 142/144 patients (99%). The relapsers occurred in previous naive patients (n = 2/128, 2%), while the experienced patients showed 100% SVR12. SVR12 was 98% in F0/F1 patients in comparison to 100% in F2 patients (P = 0.552). No serious side effects were observed, nor was treatment discontinuation or death. Headache was the most common side effect in all patients (20%). In experienced patients, pruritus (31%, P = 0.007), diarrhoea (44%, P < 0.001) and skin rash (19%, P = 0.002) were higher than in naive patients. CONCLUSIONS: A ledipasvir plus sofosbuvir regimen is well tolerated and effective, and can be used safely in treating adolescent patients with chronic hepatitis C genotype 4. PMID- 29349794 TI - Adolescents' Reward-related Neural Activation: Links to Thoughts of Nonsuicidal Self-Injury. AB - Adolescence is a critical developmental period marked by an increase in risk behaviors, including nonsuicidal self-injury (NSSI). Heightened reward-related brain activation and relatively limited recruitment of prefrontal regions contribute to the initiation of risky behaviors in adolescence. However, neural reward processing has not been examined among adolescents who are at risk for future engagement for NSSI specifically, but who have yet to actually engage in this behavior. In the current fMRI study (N = 71), we hypothesized that altered reward processing would be associated with adolescents' thoughts of NSSI. Results showed that NSSI youth exhibited heightened activation in the bilateral putamen in response to a monetary reward. This pattern of findings suggests that heightened neural sensitivity to reward is associated with thoughts of NSSI in early adolescence. Implications for prevention are discussed. PMID- 29349795 TI - Quality of life assumptions determine which cervical cancer screening strategies are cost-effective. AB - Quality-adjusted life years are used in cost-effectiveness analyses (CEAs). To calculate QALYs, a "utility" (0-1) is used for each health state induced or prevented by the intervention. We aimed to estimate the impact of quality of life (QoL) assumptions (utilities and durations of health states) on CEAs of cervical cancer screening. To do so, 12 alternative sets of utility assumptions were retrieved from published cervical cancer screening CEAs. Two additional sets were based on empirical QoL data that were integrally obtained through two different measures (SF-6D and EQ-5D) from eight groups of women (total n = 3,087), from invitation for screening to diagnosis with cervical cancer. Per utility set we calculated the number of quality-adjusted days lost (QADL) for each relevant health state in cervical cancer screening, by multiplying the study-specific assumed disutilities (i.e., 1-utility) with study-specific durations of the loss in QoL, resulting in 14 "QADL-sets." With microsimulation model MISCAN we calculated cost-effectiveness of 342 alternative screening programs (varying in primary screening test [Human Papillomavirus (HPV) vs. cytology], starting ages, and screening interval) for each of the 14 QADL-sets. Utilities used in CEAs appeared to differ largely. We found that ten QADL-sets from the literature resulted in HPV and two in cytology as preferred primary test. The SF-6D empirical QADL-set resulted in cytology and the EQ-5D one in HPV as preferred primary test. In conclusion, assumed utilities and health state durations determine cost-effectiveness of cervical cancer screening. Also, the measure used to empirically assess utilities can be crucial for CEA conclusions. PMID- 29349796 TI - Quantification of acyclovir in dermal interstitial fluid and human serum by ultra high-performance liquid-high-resolution tandem mass spectrometry for topical bioequivalence evaluation. AB - Time-concentration curves for the topical anti-viral drug acyclovir can provide valuable information for drug development. Open flow microperfusion is used for continuous sampling of dermal interstitial fluid but it requires validated methods for subsequent sample analysis. Therefore, we developed a sensitive, selective and high-throughput ultra-high-performance liquid chromatography-high resolution tandem mass spectrometry method to determine acyclovir in human dermal interstitial fluid and serum. We validated the method over a concentration range of 0.1-25 ng/mL for a sample volume of just 20 MUL and employed cation-exchange solid-phase extraction in a fully automated sample treatment procedure. Short- and long-term sample stability data and the analysis of 5000 samples from a clinical trial demonstrate the successful application of our method. PMID- 29349797 TI - Efficacy and toxicity of praziquantel in helminth-infected barbel (Barbus barbus L.). AB - This study evaluated efficacy and toxicity of the pyrazinoisoquinoline anthelmintic praziquantel (PZQ) in barbel infected with metacercariae of Diplostomum spathaceum and adult Pomphorhynchus laevis, and assessed antioxidant biomarkers and the lipid peroxidation response in juvenile barbel post-treatment. The estimated 96-hr LC50 of PZQ was 28.6 mg/L. For evaluation of efficacy, barbel naturally infected with D. spathaceum were exposed to a 10 and 20 mg/L PZQ 4-day bath treatment. Both concentrations were 100% effective against D. spathaceum and significantly (p < .01) affected the activity of catalase, superoxide dismutase, glutathione reductase and glutathione-S-transferase as well as levels of reduced glutathione in liver and muscle. The efficacy of orally administered PZQ was assessed in adult barbel naturally infected with P. laevis. Fish were administered 10, 30 and 50 mg/kg of body weight and examined via gut dissection after 6 days. The 50 mg/kg dose significantly decreased the intensity of infection. Praziquantel is a feasible bath treatment for barbel infected with D. spathaceum and has potential for oral treatment of broodfish infected with P. laevis. PMID- 29349798 TI - Small area estimation of proportions with different levels of auxiliary data. AB - Binary data are often of interest in many small areas of applications. The use of standard small area estimation methods based on linear mixed models becomes problematic for such data. An empirical plug-in predictor (EPP) under a unit level generalized linear mixed model with logit link function is often used for the estimation of a small area proportion. However, this EPP requires the availability of unit-level population information for auxiliary data that may not be always accessible. As a consequence, in many practical situations, this EPP approach cannot be applied. Based on the level of auxiliary information available, different small area predictors for estimation of proportions are proposed. Analytic and bootstrap approaches to estimating the mean squared error of the proposed small area predictors are also developed. Monte Carlo simulations based on both simulated and real data show that the proposed small area predictors work well for generating the small area estimates of proportions and represent a practical alternative to the above approach. The developed predictor is applied to generate estimates of the proportions of indebted farm households at district-level using debt investment survey data from India. PMID- 29349799 TI - Simultaneous LC-MS/MS bioanalysis of etoposide and paclitaxel in mouse tissues and plasma after oral administration of self-microemulsifying drug-delivery systems. AB - In this study, a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated to simultaneously determine the anticancer drugs etoposide and paclitaxel in mouse plasma and tissues including liver, kidney, lung, heart, spleen and brain. The analytes were extracted from the matrices of interest by liquid-liquid extraction using methyl tert-butyl ether dichloromethane (1:1, v/v). Chromatographic separation was achieved on an Ultimate XB-C18 column (100 * 2.1 mm, 3 MUm) at 40 degrees C and the total run time was 4 min under a gradient elution. Ionization was conducted using electrospray ionization in the positive mode. Stable isotope etoposide-d3 and docetaxel were used as the internal standards. The lower limit of quantitation (LLOQ) of etoposide was 1 ng/g tissue for all tissues and 0.5 ng/mL for plasma. The LLOQ of paclitaxel was 0.4 ng/g tissue and 0.2 ng/mL for all tissues and plasma, respectively. The coefficients of correlation for all of the analytes in the tissues and plasma were >0.99. Both intra- and inter-day accuracy and precision were satisfactory. This method was successfully applied to measure plasma and tissue drug concentrations in mice treated with etoposide and paclitaxel-loaded self-microemulsifying drug-delivery systems. PMID- 29349800 TI - Specific cutaneous infiltrates of acute myeloid leukaemia in a venous leg ulcer: an unusual presentation of leukaemia cutis. PMID- 29349801 TI - Evaluating the effects of rater and subject factors on measures of association. AB - Large-scale agreement studies are becoming increasingly common in medical settings to gain better insight into discrepancies often observed between experts' classifications. Ordered categorical scales are routinely used to classify subjects' disease and health conditions. Summary measures such as Cohen's weighted kappa are popular approaches for reporting levels of association for pairs of raters' ordinal classifications. However, in large-scale studies with many raters, assessing levels of association can be challenging due to dependencies between many raters each grading the same sample of subjects' results and the ordinal nature of the ratings. Further complexities arise when the focus of a study is to examine the impact of rater and subject characteristics on levels of association. In this paper, we describe a flexible approach based upon the class of generalized linear mixed models to assess the influence of rater and subject factors on association between many raters' ordinal classifications. We propose novel model-based measures for large-scale studies to provide simple summaries of association similar to Cohen's weighted kappa while avoiding prevalence and marginal distribution issues that Cohen's weighted kappa is susceptible to. The proposed summary measures can be used to compare association between subgroups of subjects or raters. We demonstrate the use of hypothesis tests to formally determine if rater and subject factors have a significant influence on association, and describe approaches for evaluating the goodness-of-fit of the proposed model. The performance of the proposed approach is explored through extensive simulation studies and is applied to a recent large scale cancer breast cancer screening study. PMID- 29349802 TI - Shades of Awareness on the Mechanisms Underlying the Quality of Conscious Representations: A Commentary to Fazekas and Overgaard (). AB - Fazekas and Overgaard () present a novel, multidimensional model that explains different ways in which conscious representations can be degraded. Moreover, the authors discuss possible mechanisms that underlie different kinds of degradation, primarily those related to attentional processing. In this letter, we argue that the proposed mechanisms are not sufficient. We propose that (1) attentional mechanisms work differently at various processing stages; and (2) factors that are independent of attentional ones, such as expectation, previous experience, and context, should be accounted for if we are aiming to construct a comprehensive model of conscious visual perception. PMID- 29349803 TI - Assessment of mitral annulus and mitral leaflet in nonvalvular atrial fibrillation patients with various degrees of mitral regurgitation: Real time 3D transesophageal echocardiography. AB - AIM: To study the changes of mitral valve (MV) in patients with nonvalvular atrial fibrillation (NVAF)-related mitral regurgitation (MR) and the relationship between MV parameters and the enlarged left atrium (LA). MATERIALS AND METHODS: A total of 43 patients with NVAF were divided into two groups: (1) the MR1 group with mild MR and (2) the MR2 group with moderate-to-severe MR. Real time 3D transesophageal echocardiography (TEE) was performed to detect the structure of MV. RESULTS: There were no significant differences in the basic characteristics among the three groups. As compared with the control group, anterolateral to posteromedial diameter of the annulus (DALPm), anterior to posterior diameter (DAP), three-dimensional circumference (C3D), two-dimensional area (A2D), three dimensional area (A3D), exposed area of the leaflets (A3DE), and NPA (nonplanar angle) were significantly increased, whereas height and ellipticity were significantly decreased in the MR1 group and MR2 group. The overall longitudinal strain of left atrium (GLS) was significantly decreased in the MR1 and MR2 groups compared to the control group. Furthermore, GLS was inversely correlated with DALPm, DAP, C3D, A2D, A3D, A3DE, and NPA, whereas positively correlated with height, ellipticity, and the leaflet tenting height in both MR1 and MR2 groups. CONCLUSION: Even in NVAF patients with mild MR, the structure of MV was changed intensively with the expansion and deformation of the "saddle shape" structure. The deformation of MV was associated with the decreased function of LA. Our results may provide novel insight into evaluation risk factors leading to AF recurrence after ablation procedures. PMID- 29349804 TI - Integrity situational judgement test for medical school selection: judging 'what to do' versus 'what not to do'. AB - CONTEXT: Despite their widespread use in medical school selection, there remains a lack of clarity on exactly what situational judgement tests (SJTs) measure. OBJECTIVES: We aimed to develop an SJT that measures integrity by combining critical incident interviews (inductive approach) with an innovative deductive approach. The deductive approach guided the development of the SJT according to two established theoretical models, of which one was positively related to integrity (honesty-humility [HH]) and one was negatively related to integrity (cognitive distortions [CD]). The Integrity SJT covered desirable (HH-based) and undesirable (CD-based) response options. We examined the convergent and discriminant validity of the Integrity SJT and compared the validity of the HH based and CD-based subscores. METHODS: The Integrity SJT was administered to 402 prospective applicants at a Dutch medical school. The Integrity SJT consisted of 57 scenarios, each followed by four response options, of which two represented HH facets and two represented CD categories. Three SJT scores were computed, including a total, an HH-based and a CD-based score. The validity of these scores was examined according to their relationships with external integrity-related measures (convergent validity) and self-efficacy (discriminant validity). RESULTS: The three SJT scores correlated significantly with all integrity-related measures and not with self-efficacy, indicating convergent and discriminant validity. In addition, the CD-based SJT score correlated significantly more strongly than the HH-based SJT score with two of the four integrity-related measures. CONCLUSIONS: An SJT that assesses the ability to correctly recognise CD based response options as inappropriate (i.e. what one should not do) seems to have stronger convergent validity than an SJT that assesses the ability to correctly recognise HH-based response options as appropriate (i.e. what one should do). This finding might be explained by the larger consensus on what is considered inappropriate than on what is considered appropriate in a challenging situation. It may be promising to focus an SJT on the ability to recognise what one should not do. PMID- 29349805 TI - Hybrid Continuous-Flow Total Artificial Heart. AB - Clinical studies using total artificial hearts (TAHs) have demonstrated that pediatric and adult patients derive quality-of-life benefits from this form of therapy. Two clinically-approved TAHs and other pumps under development, however, have design challenges and limitations, including thromboembolic events, neurologic impairment, infection risk due to large size and percutaneous drivelines, and lack of ambulation, to name a few. To address these limitations, we are developing a hybrid-design, continuous-flow, implantable or extracorporeal, magnetically-levitated TAH for pediatric and adult patients with heart failure. This TAH has only two moving parts: an axial impeller for the pulmonary circulation and a centrifugal impeller for the systemic circulation. This device will utilize the latest generation of magnetic bearing technology. Initial geometries were established using pump design equations, and computational modeling provided insight into pump performance. The designs were the basis for prototype manufacturing and hydraulic testing. The study results demonstrate that the TAH is capable of delivering target blood flow rates of 1 6.5 L/min with pressure rises of 1-92 mm Hg for the pulmonary circulation and 24 150 mm Hg for the systemic circulation at 1500-10 000 rpm. This initial design of the TAH was successful and serves as the foundation to continue its development as a novel, more compact, nonthrombogenic, and effective therapeutic alternative for infants, children, adolescents, and adults with heart failure. PMID- 29349806 TI - Blue Monday Is Real for Suicide: A Case-Control Study of 188,601 Suicides. AB - Many studies have reported that suicides tend to occur on Mondays. However, owing to a lack of controls, conclusive findings on the potential effects of a day of the week on suicides have been lacking. We analyzed public data for causes of death from 1997 to 2015 in the Republic of Korea. Accidental death was used as a control group. The probability of suicide on each day of the week according to age group was calculated. A total of 377,204 deaths (188,601 suicides and 188,603 accidental deaths) were used. The frequency of suicide was highest on Monday and decreased throughout the week until Saturday. Accidental death was highest on Saturday and showed no variations according to weekday. For people in their teens and 20s, the probabilities of suicide on Monday were 9% and 10% higher, respectively, than those on Sunday. As age increased, the differences in suicide probability according to the day of the week were attenuated. The so-called Blue Monday effect is real, particularly for people in their teens and 20s. Suicide prevention strategies that aim to attenuate the burden and stress of Mondays should be planned. PMID- 29349807 TI - Possible role of plasmacytoid dendritic cells in pityriasis lichenoides. AB - BACKGROUND: Plasmacytoid dendritic cells (pDCs) and their product, type I interferons (IFNs), have been implicated in the pathogenesis of several skin disorders characterized by an interface dermatitis (ID) pattern, such as lichen planus (LP). A type I IFN signature has previously been documented in pityriasis lichenoides (PL). Although pDCs are known to be the main source and most potent producers of local type I IFNs, their role in PL has not been investigated. AIM: To investigate the role of pDCs in PL. METHODS: In total, 20 cases of PL and 20 comparable cases of LP were immunohistochemically tested for pDC occurrence and type I IFN production using anti-blood-derived dendritic cell antigen-2 (BDCA2; a specific pDC marker) and anti-myxovirus protein A (anti-MxA) antibodies (indirect marker of pDC activity), respectively. MxA is a well-established surrogate marker for local type 1 IFN production. A semiquantitative scoring system was used. RESULTS: pDCs were present in all 40 cases with no statistically significant difference between the two groups. MxA expression was intense and diffuse in the majority of PL and LP cases. CONCLUSIONS: pDCs constitute a central component of the inflammatory infiltrate in PL, suggesting that PL shares with the other entities that exhibit an ID a common pDC-driven process through type I IFN production, which ultimately leads to the cytotoxic attack. PMID- 29349808 TI - Promises and pitfalls in the development of biomarkers that can promote early intervention in children at risk. AB - The cost to individuals and to society of psychopathology that emerges in childhood is substantial. Children whose problems are undiagnosed or inadequately treated struggle in school, experience rejection by peers, and become a source of stress for caregivers and teachers. As adults, their mental health problems tend to recur and their cognitive difficulties persist. Clinicians hold a well-founded belief that early identification of children who are at risk for psychopathology is the key to prevention. PMID- 29349809 TI - Alexithymia as a potential source of symptom over-reporting: An exploratory study in forensic patients and non-forensic participants. AB - The traditional interpretation of symptom over-reporting is that it indicates malingering. We explored a different perspective, namely that over-reporting of eccentric symptoms is related to deficits in articulating internal experiences (i.e., alexithymia). Given that alexithymia has been linked to sleep problems and that fatigue may fuel inattentive responding to symptom lists, we administered measures of alexithymia (TAS-20) and symptom over-reporting (SIMS), but also sleep quality (SLEEP-50) to forensic psychiatric outpatients (n = 40) and non forensic participants (n = 40). Forensic patients scored significantly higher on all three indices than non-forensic participants. In the total sample as well as in subsamples, over-reporting correlated positively and significantly with alexithymia, with rs being in the 0.50-0.65 range. Sleep problems were also related to over-reporting, but in the full sample and in the forensic subsample, alexithymia predicted variance in over-reporting over and above sleep problems. Although our study is cross-sectional in nature, its results indicate that alexithymia as a potential source of over-reporting merits systematic research. PMID- 29349810 TI - Medicago truncatula copper transporter 1 (MtCOPT1) delivers copper for symbiotic nitrogen fixation. AB - Copper is an essential nutrient for symbiotic nitrogen fixation. This element is delivered by the host plant to the nodule, where membrane copper (Cu) transporter would introduce it into the cell to synthesize cupro-proteins. COPT family members in the model legume Medicago truncatula were identified and their expression determined. Yeast complementation assays, confocal microscopy and phenotypical characterization of a Tnt1 insertional mutant line were carried out in the nodule-specific M. truncatula COPT family member. Medicago truncatula genome encodes eight COPT transporters. MtCOPT1 (Medtr4g019870) is the only nodule-specific COPT gene. It is located in the plasma membrane of the differentiation, interzone and early fixation zones. Loss of MtCOPT1 function results in a Cu-mitigated reduction of biomass production when the plant obtains its nitrogen exclusively from symbiotic nitrogen fixation. Mutation of MtCOPT1 results in diminished nitrogenase activity in nodules, likely an indirect effect from the loss of a Cu-dependent function, such as cytochrome oxidase activity in copt1-1 bacteroids. These data are consistent with a model in which MtCOPT1 transports Cu from the apoplast into nodule cells to provide Cu for essential metabolic processes associated with symbiotic nitrogen fixation. PMID- 29349811 TI - Genetic analysis of interleukin 18 gene polymorphisms in alopecia areata. AB - BACKGROUND: Alopecia areata (AA), which appears as nonscarring hair shedding on any hair-bearing area, is a common organ-specific autoimmune condition. Cytokines have important roles in the development of AA. Interleukin (IL) 18 is a significant proinflammatory cytokine that was found higher in the patients with AA. We aimed to investigate whether the IL-18 (rs187238 and rs1946518) single nucleotide polymorphisms (SNPs) may be associated with AA and/or clinical outcome of patients with AA in Turkish population. METHODS: Genotyping of rs187238 and rs1946518 SNPs were detected using sequence-specific primer-polymerase chain reaction (SSP-PCR) method in 200 patients with AA and 200 control subjects. RESULTS: The genotype distribution of rs1946518 (-607C>A) SNP was found to be statistically significantly different among patients with AA and controls (P = .0008). Distribution of CC+CA genotypes and frequency of -607/allele C of rs1946518 SNP were higher in patients with AA (P = .001, P = .001, respectively). The genotype distribution of rs187238 (-137G>C) SNP was found to be statistically significantly different among patients with AA and control subjects (P = .0014). Distribution of GG genotype and frequency of -137/allele G of rs187238 SNP were higher in patients with AA (P = .0003, P = .001, respectively). CONCLUSION: The rs1946518 (-607C>A) and rs187238 (-137G>C) polymorphisms were found associated with alopecia areata disease. The study suggests that IL-18 rs187238 and rs1946518 SNPs may be the cause of the AA susceptibility. PMID- 29349812 TI - Drug promotion practices: A review. AB - Over the years, the pharmaceutical industry has been at the forefront of research and innovation in drug discovery and development. The process of drug discovery extending from preclinical studies to multicentric clinical trials and postmarketing phase is a costly affair running into billions of dollars. On the flip side, not all investigational molecules clear the trial phases and get approved, which puts pressure on the manufacturers to maximize the profit from approved drugs. It is in this key area that the practice of drug promotion plays its role. The World Health Organization defines drug promotion as "all informational and persuasive activities by manufacturers and distributors, the effect of which is to influence the prescription, supply, purchase or use of medicinal drugs". With its humble intent of creating awareness among healthcare professionals and updating their knowledge on recent advances in treatment options, drug promotion has been an important tool, but gradually it has evolved to embrace aggressive marketing strategies and sometimes unethical business and scientific practices where the need for profit-making eclipses commitment to patient care and scientific exploration. In this review, we discuss the evolution of drug promotion practices, the various types, its merits and demerits, the influence of drug promotion on physician prescribing behaviour, the role of regulatory bodies, unethical promotional practices and finally summarize with future directions. PMID- 29349813 TI - HLA-B27 testing: A journey from flow cytometry to molecular subtyping. AB - BACKGROUND: Determination of HLA-B27 status plays an important role as adjuvant in suspected cases for diagnosis of Ankylosing Spondilytis (AS). Objectives of this study were to evaluate (i) flow cytometry method in comparison with DNA microarray for HLA-B27 typing and (ii) EUROArray HLA-B27 Direct assay for HLA-B27 allele detection along with discrimination of AS/non-AS subtypes in Indian population. METHODS: A total of 7543 patients with a presumptive clinical diagnosis of AS were referred for screening of HLA-B27. All samples were initially tested by flow cytometry, and based on its findings, 1560 samples were analyzed for the presence of HLA-B27 allele by microarray technology. A subset of samples (n = 200) were further tested by DNA sequencing for identification of HLA B27 subtypes. RESULTS: Screening of HLA-B27 by flow cytometry reported 1551 positive (20.56%) and 5556 negative (73.65%) cases. Remaining 436 (5.78%) samples were identified within equivocal zone. Of cases (n = 1560) analyzed by microarray method, 1333 (85.44%) and 227 (14.55%) were detected microarray positive and negative, respectively. DNA sequencing identified HLA-B*27:07 as the predominant subtype among cases showing ex2 positivity by microarray method. Of 200 cases, 20 cases (14 of HLA-B*07 and 6 of HLA-B*37) of HLA-B27 cross-reactive subtypes were also identified. CONCLUSION: We recommend DNA typing as a complementary tool along with flow cytometry to accomplish successful HLA-B27 phenotype determination. This is the first study among Indian population to evaluate efficacy of EUROArray to detect B27 allele and its potential to indicate the presence of nondisease-associated alleles in Indian population. PMID- 29349814 TI - VO2 /TiN Plasmonic Thermochromic Smart Coatings for Room-Temperature Applications. AB - Vanadium dioxide/titanium nitride (VO2 /TiN) smart coatings are prepared by hybridizing thermochromic VO2 with plasmonic TiN nanoparticles. The VO2 /TiN coatings can control infrared (IR) radiation dynamically in accordance with the ambient temperature and illumination intensity. It blocks IR light under strong illumination at 28 degrees C but is IR transparent under weak irradiation conditions or at a low temperature of 20 degrees C. The VO2 /TiN coatings exhibit a good integral visible transmittance of up to 51% and excellent IR switching efficiency of 48% at 2000 nm. These unique advantages make VO2 /TiN promising as smart energy-saving windows. PMID- 29349815 TI - Erratum: An assessment of differences in costs and health benefits of serology and NAT screening of donations for blood transfusion in different Western countries. PMID- 29349817 TI - Anatomical study of the so-called "retromolar gland": Distinguishing normal anatomy from oral cavity pathology. AB - The minor salivary glands in the retromolar trigone have rarely been studied. The aim of this study was to better define the anatomy of the minor salivary glands in the retromolar trigone and establish the relationships between these and adjacent structures. The gland in the retromolar trigone was exposed and its relationships to surrounding structures were observed on 20 cadaveric sides. The boundaries of the gland included the superior pharyngeal constrictor muscle, the tendon of the buccinator muscle, and loose connective tissue. The gland was not continuous with the pterygomandibular or parapharyngeal spaces, but loose connective tissue was present between glands in the retromolar trigone and the medial pterygoid muscle. To our knowledge, this is the first study to describe the detailed anatomy of the minor salivary gland in the retromolar trigone. We suggest that the minor salivary gland in the retromolar trigone should be named the "retromolar gland." Clin. Anat. 31:462-465, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29349818 TI - Nanocrystalline Precursors for the Co-Assembly of Crack-Free Metal Oxide Inverse Opals. AB - Inorganic microstructured materials are ubiquitous in nature. However, their formation in artificial self-assembly systems is challenging as it involves a complex interplay of competing forces during and after assembly. For example, colloidal assembly requires fine-tuning of factors such as the size and surface charge of the particles and electrolyte strength of the solvent to enable successful self-assembly and minimize crack formation. Co-assembly of templating colloidal particles together with a sol-gel matrix precursor material helps to release stresses that accumulate during drying and solidification, as previously shown for the formation of high-quality inverse opal (IO) films out of amorphous silica. Expanding this methodology to crystalline materials would result in microscale architectures with enhanced photonic, electronic, and catalytic properties. This work describes tailoring the crystallinity of metal oxide precursors that enable the formation of highly ordered, large-area (mm2 ) crack free titania, zirconia, and alumina IO films. The same bioinspired approach can be applied to other crystalline materials as well as structures beyond IOs. PMID- 29349819 TI - Incidence and predictors of sudden cardiac death after heart transplantation: A systematic review and meta-analysis. AB - PURPOSE: Sudden cardiac death (SCD) is an important post-transplant problem being responsible for ~10% of deaths. We conducted a systematic review and meta analysis to evaluate incidence and predictors of post-heart transplant SCD and the use of implantable cardiac defibrillator (ICD). METHODS: Citations were identified in electronic databases and references of included studies. Observational studies on adults reporting on incidence and predictors of post transplant SCD and ICD use were selected. We meta-analyzed SCD in person-years using random effects models. We qualitatively summarized predictors. RESULTS: This study includes 55 studies encompassing 47 901 recipients. The pooled incidence rate of SCD was 1.30 per 100 person-years (95% CI: 1.08-1.52). Cardiac allograft vasculopathy (CAV) was associated with higher SCD risk (2.40 per 100 patient-years, 95% CI: 1.46-3.34). Independent predictors of SCD identified by two moderate-quality studies were older donor age, younger recipient age, non Caucasian race, reduced left ventricular ejection fraction, rejection, infection, and cancer. Authors rarely reported on ICD use. CONCLUSION: This meta-analysis found that post-transplant SCD risk in heart transplant recipients is higher than that in the general population. CAV was associated with increased SCD risk. Observational studies reporting on absolute risk of SCD are needed to better identify populations at a clinically significant increased risk. PMID- 29349820 TI - An experimental test of alternative population augmentation scenarios. AB - Human land use is fragmenting habitats worldwide and inhibiting dispersal among previously connected populations of organisms, often leading to inbreeding depression and reduced evolutionary potential in the face of rapid environmental change. To combat this augmentation of isolated populations with immigrants is sometimes used to facilitate demographic and genetic rescue. Augmentation with immigrants that are genetically and adaptively similar to the target population effectively increases population fitness, but if immigrants are very genetically or adaptively divergent, augmentation can lead to outbreeding depression. Despite well-cited guidelines for the best practice selection of immigrant sources, often only highly divergent populations remain, and experimental tests of these riskier augmentation scenarios are essentially nonexistent. We conducted a mesocosm experiment with Trinidadian guppies (Poecilia reticulata) to test the multigenerational demographic and genetic effects of augmenting 2 target populations with 3 types of divergent immigrants. We found no evidence of demographic rescue, but we did observe genetic rescue in one population. Divergent immigrant treatments tended to maintain greater genetic diversity, abundance, and hybrid fitness than controls that received immigrants from the source used to seed the mesocosms. In the second population, divergent immigrants had a slightly negative effect in one treatment, and the benefits of augmentation were less apparent overall, likely because this population started with higher genetic diversity and a lower reproductive rate that limited genetic admixture. Our results add to a growing consensus that gene flow can increase population fitness even when immigrants are more highly divergent and may help reduce uncertainty about the use of augmentation in conservation. PMID- 29349821 TI - Biodegradable Electronic Systems in 3D, Heterogeneously Integrated Formats. AB - Biodegradable electronic systems represent an emerging class of technology with unique application possibilities, from temporary biomedical implants to "green" consumer gadgets. This paper introduces materials and processing methods for 3D, heterogeneously integrated devices of this type, with various functional examples in sophisticated forms of silicon-based electronics. Specifically, techniques for performing multilayer assembly by transfer printing and for fabricating layer-to layer vias and interconnects by lithographic procedures serve as routes to biodegradable, 3D integrated circuits composed of functional building blocks formed using specialized approaches or sourced from commercial semiconductor foundries. Demonstration examples range from logic gates and analog circuits that undergo functional transformation by transience to systems that integrate multilayer resistive sensors for in situ, continuous electrical monitoring of the processes of transience. The results significantly expand the scope of engineering options for biodegradable electronics and other types of transient microsystem technologies. PMID- 29349822 TI - Subcritical water extraction of amino acids from Mars analog soils. AB - For decades, the Martian regolith has stymied robotic mission efforts to catalog the organic molecules present. Perchlorate salts, found widely throughout Mars, are the main culprit as they breakdown and react with organics liberated from the regolith during pyrolysis, the primary extraction technique attempted to date on Mars. This work further develops subcritical water extraction (SCWE) as a technique for extraction of amino acids on future missions. The effect of SCWE temperature (185, 200, and 215 degrees C) and duration of extraction (10-120 min) on the total amount and distribution of amino acids recovered was explored for three Mars analog soils (JSC Mars-1A simulant, an Atacama desert soil, and an Antarctic Dry Valleys soil) and bovine serum albumin (as a control solution of known amino acid content). Total amounts of amino acids extracted increased with both time and temperature; however, the distribution shifted notably due to the destruction of the amino acids with charged or polar side chains at the higher temperatures. The pure bovine serum albumin solution and JSC Mars 1A also showed lower yields than the Atacama and Antarctic extractions suggesting that SCWE may be less effective at hydrolyzing large or aggregated proteins. Changing solvent from water to a dilute (10 mM) HCl solution allowed total extraction efficiencies comparable to the higher temperature/time combinations while using the lowest temperature/time (185 degrees C/20 min). The dilute HCl extractions also did not lead to the shift in amino acid distribution observed at the higher temperatures. Additionally, adding sodium perchlorate salt to the extraction did not interfere with recoveries. Native magnetite in the JSC Mars-1A may have been responsible for destruction of glycine, as evidenced by its uncharacteristic decrease as the temperature/time of extraction increased. This work shows that SCWE can extract high yields of native amino acids out of Mars analog soils with minimal disruption of the distribution of those amino acids, even in the presence of a perchlorate salt. PMID- 29349823 TI - Tibolone and risk of gynecological hormone sensitive cancer. AB - Risk of ovarian cancer with hormone therapy is associated with use of both unopposed estrogen therapy and combined estrogen-progestin therapy, whereas for endometrial cancer addition of continuous progestin decreases the estrogen induced increased risk. Less is known about risk with use of tibolone; a synthetic steroid with estrogenic, progestagenic and androgenic properties. We assessed these associations in a prospective cohort study, including all Danish women 50-79 years of age and followed 1995-2009. National Danish Registers captured individually updated exposure information, cancer cases including histology and confounding factors. Poisson regression analyses provided multiple adjusted incidence rate ratios (IRRs). More than 900,000 women were followed for 9.8 years on average; 4,513 were diagnosed with ovarian cancer and 6,202 with endometrial cancer. Compared to women never on postmenopausal hormone therapy, current users of tibolone had an increased IRR for ovarian cancer (1.42(95% confidence interval [CI], 1.01-2.00) and serous ovarian tumors (2.21(95%CI 1.48 3.32)). The risk increased with duration of use, particularly for serous ovarian tumors. Compared to never users, the IRR of endometrial cancer was 3.56(95%CI 2.94-4.32) among current users of tibolone and 3.80(95%CI 3.08-4.69) of Type I endometrial cancer. The steepest risk increase with duration of use was for Type I tumors. In conclusion, tibolone is associated with increased risk for ovarian and endometrial cancer overall; and particular the risk of serous ovarian tumors and Type I endometrial cancer. Because the associations are stronger with increasing durations of use - and for hormone sensitive tumors - the results seem indicative of causality. PMID- 29349824 TI - Reduced left ventricular filling following blood volume extraction does not result in compensatory augmentation of cardiac mechanics. AB - NEW FINDINGS: What is the central question of this study? A reduction in left ventricular (LV) filling, and concomitant increase in heart rate, augments LV mechanics to maintain stroke volume (SV); however, the impact of reduced LV filling in isolation on SV and LV mechanics is currently unknown. What is the main finding and its importance? An isolated decrease in LV filling did not provoke a compensatory increase in mechanics to maintain SV; in contrast, LV mechanics and SV were reduced. These data indicate that when LV filling is reduced without changes in heart rate, LV mechanics do not compensate to maintain SV. ABSTRACT: An acute non-invasive reduction in preload has been shown to augment cardiac mechanics to maintain stroke volume and cardiac output. Such interventions induce concomitant changes in heart rate, whereas blood volume extraction reduces preload without changes in heart rate. Therefore, the purpose of this study was to determine whether a preload reduction in isolation resulted in augmented stroke volume achieved via enhanced cardiac mechanics. Nine healthy volunteers (four female, age 29 +/- 11 years) underwent echocardiography for the assessment of left ventricular (LV) volumes and mechanics in a supine position at baseline and end extraction after the controlled removal of 25% of total blood volume (1062 +/- 342 ml). Arterial blood pressure was monitored continuously by a pressure transducer attached to an indwelling radial artery catheter. Heart rate and total peripheral resistance were unchanged from baseline to end extraction, but systolic blood pressure was reduced (from 148 to 127 mmHg). From baseline to end extraction there were significant reductions in left ventricular end diastolic volume (from 89 to 71 ml) and stroke volume (from 56 to 37 ml); however, there was no change in LV twist, basal or apical rotation. In contrast, LV longitudinal strain (from -20 to -17%) and basal circumferential strain (from 22 to -19%) were significantly reduced from baseline to end extraction. In conclusion, a reduction in preload during blood volume extraction does not result in compensatory changes in stroke volume or cardiac mechanics. Our data suggest that LV strain is dependent on LV filling and consequent geometry, whereas LV twist could be mediated by heart rate. PMID- 29349825 TI - Synthesis of Single and Double Dibenzohelicenes by Rhodium-Catalyzed Intramolecular [2+2+2] and [2+1+2+1] Cycloaddition. AB - Dibenzo[7]helicenes were synthesized with up to 99 % ee by rhodium(I)/binap catalyzed enantioselective intramolecular [2+2+2] cycloaddition of 2 phenylnaphthalene-linked triynes. Additionally, [2+1+2+1] cycloaddition products, that is, twisted anthracenes, were also synthesized by using difluorphos as ligand. Although these compounds are not configurationally stable at elevated temperature, their Scholl reactions afforded configurationally stable double dibenzo[6]helicenes. The thus-obtained dibenzo[7]helicene exhibited good circularly polarized luminescence property and the double dibenzo[6]helicene showed high fluorescence quantum yield. PMID- 29349826 TI - Low performance on mathematical tasks in preschoolers: the importance of domain general and domain-specific abilities. AB - BACKGROUND: Different domain-specific and domain-general cognitive precursors play a key role in the development of mathematical abilities. The contribution of these domains to mathematical ability changes during development. Primary school aged children who show mathematical difficulties form a heterogeneous group, but it is not clear whether this also holds for preschool low achievers (LAs) and how domain-specific and domain-general abilities contribute to mathematical difficulties at a young age. The aim of this study was to explore the cognitive characteristics of a sample of preschool LAs and identify sub-types of LAs. METHODS: 81 children were identified as LAs from 283 preschoolers aged 3 to 5 years old and were assessed on a number of domain-general and domain-specific tasks. RESULTS: Cluster analysis revealed four subgroups of LAs in mathematics: (1) a weak processing sub-type; (2) a general mathematical LAs sub-type; (3) a mixed abilities sub-type; and (4) a visuo-spatial deficit sub-type. Whilst two of the groups showed specific domain-general difficulties, none showed only domain specific difficulties. CONCLUSIONS: Current findings suggest that preschool LAs constitute a heterogeneous group and stress the importance of domain-general factors for the development of mathematical abilities during the preschool years. PMID- 29349827 TI - Underwater Mechanically Robust Oil-Repellent Materials: Combining Conflicting Properties Using a Heterostructure. AB - The development of underwater mechanically robust oil-repellent materials is important due to the high demand for these materials with the increase in underwater activities. Based on the previous study, a new strategy is demonstrated to prepare underwater mechanically robust oil-repellent materials by combining conflicting properties using a heterostructure, which has a layered hydrophobic interior structure with a columnar hierarchical micro/nanostructure on the surface and a hydrophilic outer structure. The surface hydrophilic layer imparts underwater superoleophobicity and low oil adhesion to the material, which has oil contact angle of larger than 150 degrees and adhesion of lower than 2.8 uN. The stability of the mechanical properties stemming from the interior hydrophobic-layered structure enables the material to withstand high weight loads underwater. The tensile stress and the hardness of such a heterostructure film after 1 month immersion in seawater and pH solution are in the range from 83.92 +/- 8.22 to 86.73 +/- 7.8 MPa and from 83.88 +/- 6.8 to 86.82 +/- 5.64 MPa, respectively, which are superior to any underwater oil-repellent material currently reported. PMID- 29349828 TI - Further Evidence That Sleep Deprivation Effects and the Vigilance Decrement Are Functionally Equivalent: Comment on Altmann (2018). AB - Veksler and Gunzelmann (2018) argue that the vigilance decrement and the deleterious effects of sleep loss reflect functionally equivalent degradations in cognitive processing and performance. Our account is implemented in a cognitive architecture, where these factors produce breakdowns in goal-directed cognitive processing that we refer to as microlapses. Altmann (2018) raises a number of challenges to microlapses as a unified account of these deficits. Under scrutiny, however, the challenges do little to discredit the theory or conclusions in the original paper. In our response, we address the most serious challenges. In so doing, we provide additional support for the theory and mechanisms, and we highlight opportunities for extending their explanatory breadth. PMID- 29349829 TI - Physicians' perspective on the clinical meaningfulness of inflammatory bowel disease trial results: an International Organization for the Study of Inflammatory Bowel Disease (IOIBD) survey. AB - BACKGROUND: Several novel compounds are being developed for inflammatory bowel diseases (IBD). In addition, biosimilar drugs are being approved. An increasing number of head-to-head, superiority and non-inferiority trials in patients with IBD are expected in the future. The clinical relevance of the magnitude of the effect size is often debated. AIM: To better understand physicians' perspectives on the clinical meaningfulness of IBD trial results. METHODS: We conducted an online survey among all IOIBD (International Organization for the Study of Inflammatory Bowel Diseases) members, asking their opinion on the clinical relevance of the results of IBD trials. RESULTS: Forty-six IOIBD members responded to the survey (52.3%). In biologic-naive ulcerative colitis (UC) and Crohn's disease (CD) patients, most of the participants considered a 15% difference with placebo for clinical remission and endoscopic remission to be clinically relevant. In head-to-head trials, most of participants considerer a 10% difference between groups for clinical remission and endoscopic remission to be clinically relevant. Half of respondents considered 10% to be an adequate margin in non-inferiority trials. In bioequivalence studies, most of the participants considered adequate a +/- 5% difference between a biosimilar and the originator for pharmacokinetic parameters, efficacy, safety and immunogenicity. Regarding safety, the difference between two drugs considered clinically relevant varied from 1% to 5%, depending on the type of adverse event. CONCLUSIONS: This is the first survey exploring how physicians perceive IBD trial results, providing an estimation of the magnitude of the difference between treatment arms that may directly influence clinical practice. PMID- 29349830 TI - Synthesis and Structure of a Longitudinally Twisted Hexacene. AB - The addition of phenyllithium to a polycyclic quinone, 9,11,12,21,22,24 hexaphenyltetrabenzo[a,c,n,p]hexacene-10,23-dione (10), followed by SnCl2 mediated reduction of the diol intermediate, yielded 9,10,11,12,21,22,23,24 octaphenyltetrabenzo-[a,c,n,p]hexacene (4). Crystallographic analysis of hexacene 4 showed it to possess a longitudinal twist of 184 degrees , which was in good agreement with AM1 calculations. In addition to being the most twisted acene synthesized to this point, compound 4 contains within its substructure the most twisted naphthalene, anthracene, tetracene, and pentacene moieties described. PMID- 29349832 TI - Effects of yoga interventions practised in heated and thermoneutral conditions on endothelium-dependent vasodilatation: The Bikram yoga heart study. AB - NEW FINDINGS: What is the central question of this study? Does the heated practice environment enhance the effects of Bikram yoga on endothelium-dependent vasodilatation in healthy, middle-aged adults? What is the main finding and its importance? The primary finding from this investigation is that the hatha yoga postures in the Bikram yoga series produce similar enhancements in endothelium dependent vasodilatation in healthy, middle-aged adults regardless of environmental temperature. These findings highlight the efficacy of yoga postures in producing improvements in vascular health and downplay the necessity of the heated practice environment in inducing vascular adaptations. ABSTRACT: We have previously documented improvements in endothelium-dependent vasodilatation with a Bikram (hot) yoga intervention in middle-aged adults. At present, the effect of environmental temperature in hot yoga on endothelial function is unknown. The purpose of this investigation was to determine the effects of Bikram yoga interventions performed in heated or thermoneutral conditions on endothelium dependent vasodilatation. Fifty-two sedentary but apparently healthy adults aged 40-60 years were randomly assigned to one of three groups: Bikram yoga practised at 40.5 degrees C (n = 19), Bikram yoga practised at 23 degrees C (n = 14) or sedentary time control (n = 19). The yoga interventions consisted of 90 min Bikram yoga classes three times a week for 12 weeks. Endothelium-dependent vasodilatation was measured non-invasively using brachial artery flow-mediated dilatation (FMD). Body fat percentage determined via dual-energy X-ray absorptiometry was significantly lower in the hot yoga group after the intervention than in the thermoneutral yoga and control conditions. Brachial artery FMD increased (P < 0.05) in the thermoneutral yoga group and tended to increase in the hot yoga group (P = 0.056). No changes occurred in the control group. There were no significant differences in FMD change scores between groups. We conclude that Bikram yoga practised in thermoneutral conditions improved endothelium-dependent vasodilatation in healthy, middle-aged adults. These new findings highlight the effectiveness of hatha yoga postures alone, in the absence of a heated practice environment, in improving vascular health and are of clinical significance given the increased propensity for heat intolerance in ageing adults. PMID- 29349833 TI - A systematic assessment of key design and performance characteristics of drug exposure registries requested by the U.S. Food and Drug Administration. AB - PURPOSE: The purpose of the study is to evaluate contributions to postmarket safety assessments and identify potential factors for enhancing implementation and utilization of registries in regulatory decision-making. METHODS: Registry documents (e.g., protocols, reports) submitted to the FDA were identified up to January 2016 through an extensive, systematic review of internal records and resources. We characterized nonpregnancy drug exposure registries based on prespecified design elements, performance, and regulatory impact. RESULTS: A total of 65 registries were identified: 56 registries were open and 9 closed. Among open registries, 20% were pending, 14% delayed, and 16% ongoing less than <=3 years. Most registries (82%) examined safety issues that originally arose from clinical trials; most frequent safety issues investigated included infections, gastrointestinal dysfunction, and liver toxicity. Although 74% of registries ascertained baseline health conditions and monitored concomitant medication use, fewer (45%) considered drug exposure duration or dosage. Thirty seven percent of non pending registries had enrollment below sample size expectation. Seventeen registries published findings in journals/conference proceedings, 13 from open registries. Three closed registries generated results that contributed to product label changes. High-performance registries scored higher in design metrics related to sample size considerations (76% versus 62%) and adequate analysis plan (53% versus 35%), and interim report submission (76% versus 65%). There was a significant difference in proportion of registries with clear primary objectives between high versus not high performing registries (100% versus 78%). CONCLUSIONS: This study suggests clear objectives, patient accrual/retention efforts, adequate analysis plans, and interim reports contribute to the performance of drug exposure registries. PMID- 29349831 TI - Aortic dysfunction in metabolic syndrome mediated by perivascular adipose tissue TNFalpha- and NOX2-dependent pathway. AB - NEW FINDINGS: What is the central question of this study? Tumour necrosis factor alpha (TNFalpha) has been shown to impair vascular function, but the impact of thoracic aorta perivascular adipose tissue (tPVAT)-derived TNFalpha on tPVAT and aortic function in metabolic syndrome is unknown. What is the main finding and its importance? Release of TNFalpha by tPVAT causes production of reactive oxygen species in tPVAT through activation of an NADPH-oxidase 2 (NOX2)-dependent pathway, activates production of aortic reactive oxygen species and mediates aortic stiffness, potentially through matrix metalloproteinase 9 activity. Neutralization of TNFalpha and/or inhibition of NOX2 blocks the tPVAT-induced impairment of aortic function. These data partly implicate tPVAT NOX2 and TNFalpha in mediating the vascular pathology of metabolic syndrome. ABSTRACT: Perivascular adipose tissue (PVAT) is recognized for its vasoactive effects, but it is unclear how metabolic syndrome impacts thoracic aorta (t)PVAT and the subsequent effect on functional and structural aortic stiffness. Thoracic aorta and tPVAT were removed from 16- to 17-week-old lean (LZR, n = 16) and obese Zucker rats (OZR, n = 16). The OZR presented with aortic endothelial dysfunction, assessed by wire myography, and increased aortic stiffness, assessed by elastic modulus. The OZR tPVAT exudate further exacerbated the endothelial dysfunction, reducing nitric oxide and endothelium-dependent relaxation (P < 0.05). Additionally, OZR tPVAT exudate had increased MMP9 activity (P < 0.05) and further increased the elastic modulus of the aorta after 72 h of co-culture (P < 0.05). We found that the observed aortic dysfunction caused by OZR tPVAT was mediated through increased production and release of tumour necrosis factor-alpha (TNFalpha; P < 0.01), which was dependent on tPVAT NADPH-oxidase 2 (NOX2) activity. The OZR tPVAT release of reactive oxygen species and subsequent aortic dysfunction were inhibited by TNFalpha neutralization and/or inhibition of NOX2. Additionally, we found that OZR tPVAT had reduced activity of the active sites of the 20S proteasome (P < 0.05) and reduced superoxide dismutase activity (P < 0.01). In conclusion, metabolic syndrome causes tPVAT dysfunction through an interplay between TNFalpha and NOX2 that leads to tPVAT-mediated aortic stiffness by activation of aortic reactive oxygen species and increased MMP9 activity. PMID- 29349834 TI - Drug adherence in treatment resistant and in controlled hypertension-Results from the Swedish Primary Care Cardiovascular Database (SPCCD). AB - PURPOSE: To assess drug adherence in patients treated with >=3 antihypertensive drug classes, with both controlled and uncontrolled blood pressure and describe associated factors for nonadherence. METHODS: Patients with hypertension, without cardiovascular comorbidity, aged >30 years treated with >=3 antihypertensive drug classes were followed for 2 years. Both patients with treatment resistant hypertension (TRH) and patients with controlled hypertension were included. Clinical data were derived from a primary care database. Pharmacy refill data from the Swedish Prescribed drug registry was used to calculate proportion of days covered (PDC). Patients with a PDC level >= 80% were included. RESULTS: We found 5846 patients treated >=3 antihypertensive drug classes, 3508 with TRH (blood pressure >= 140/90), and 2338 with controlled blood pressure (<140/90 mm Hg). TRH patients were older (69.1 vs 65.8 years, P < .0001) but had less diabetes (28.5 vs 31.7%, P < .009) compared with patients with controlled blood pressure. The proportion of patients with PDC >= 80% declined with 11% during the first year in both groups. Having diabetes was associated with staying adherent at 1 year (RR 0.82; 95% CI, 0.68-0.98) whilst being born outside Europe was associated with nonadherence at one and (RR 2.05; 95% CI, 1.49-2.82). CONCLUSIONS: Patients with multiple antihypertensive drug therapy had similar decline in adherence over time regardless of initial blood pressure control. Diabetes was associated with better adherence, which may imply that the structured caregiving of these patients enhances antihypertensive drug treatment. PMID- 29349836 TI - Evaluation of a West Australian residential mental health respite service. AB - Family members continue to be the predominant providers of support, care and accommodation for loved ones with mental health issues, and empirical studies suggest that accessing mental health respite can be helpful for both carers and consumers. However, the availability of, and access to, this respite in Australia is far from optimal. Major issues have also been identified such as low utilisation, the inappropriate and inflexible nature of services and the inability of services to respond to situations where multiple needs exist. This article presents findings from a small evaluation of a pilot residential respite service. Semi-structured interviews were conducted with eight family members/carers and four consumers using the service, and five service providers. In addition, anonymised sociodemographic information about all users of the service in the first 9 months of its operation were analysed. Reflecting the current limitations around respite options, the majority of family members/carers and consumers were appreciative of, and satisfied with, the service. The research highlighted issues such as availability and suitability of respite, particularly when consumers had multiple and unmet needs. Mental health residential respite is often a stopgap in crisis situations and intersects with the difficulty of planning respite and shortages in affordable supported accommodation. Furthermore, the ramifications of individualised funding for people with "psychosocial disability" in the new Australian National Disability Insurance Scheme (NDIS) remain unclear. While family members and carers may benefit indirectly from NDIS funding, it is especially important at this time that the need for more suitable, recovery-oriented respite services is highlighted. PMID- 29349835 TI - Optimization of Aqueous Extraction from Kalanchoe pinnata Leaves to Obtain the Highest Content of an Anti-inflammatory Flavonoid using a Response Surface Model. AB - INTRODUCTION: The medicinal plant Kalanchoe pinnata is a phenolic-rich species used worldwide. The reports on its pharmacological uses have increased by 70% in the last 10 years. The leaves of this plant are the main source of an unusual quercetin-diglycosyl flavonoid (QAR, quercetin arabinopyranosyl rhamnopyranoside), which can be easily extracted using water. QAR possess a strong in vivo anti-inflammatory activity. OBJECTIVE: To optimize the aqueous extraction of QAR from K. pinnata leaves using a three-level full factorial design. MATERIAL AND METHODS: After a previous screening design, time (x1 ) and temperature (x2 ) were chosen as the two independent variables for optimization. Freeze-dried leaves were extracted with water (20% w/v), at 30 degrees C, 40 degrees C or 50 degrees C for 5, 18 or 30 min. QAR content (determined by HPLC DAD) and yield of extracts were analyzed. The optimized extracts were also evaluated for cytotoxicity. RESULTS: The optimal heating times for extract yield and QAR content were similar in two-dimensional (2D) surface responses (between 12.8 and 30 min), but their optimal extraction temperatures were ranged between 40 degrees C and 50 degrees C for QAR content and 30 degrees C and 38 degrees C for extract yield. A compromise region for both parameters was at the mean points that were 40 degrees C for the extraction temperature and 18 min for the total time. CONCLUSION: The optimized process is faster and spends less energy than the previous one (water; 30 min at 55 degrees C); therefore is greener and more attractive for industrial purposes. This is the first report of extraction optimization of this bioactive flavonoid. Copyright (c) 2018 John Wiley & Sons, Ltd. PMID- 29349837 TI - Human-specific phages infecting Enterococcus host strain MW47: are they reliable microbial source tracking markers? AB - AIM: The aim of this study was to determine the morphological diversity and environmental survival of human-specific phages infecting Enterococcus faecium host strain MW47, to support their use as microbial source tracking (MST) markers. METHODS AND RESULTS: Twenty phages capable of infecting strain MW47 were propagated and their morphologies were determined using transmission electron microscopy (TEM), which revealed that a heterogeneous group of phages was able to infect strain MW47. Three distinct morphologies from two different families (Myoviridae and Siphoviridae) were observed. In situ inactivation experiments were subsequently conducted to determine their environmental persistence. CONCLUSION: The findings revealed a statistically significant link between morphology and the rate of inactivation, with phages belonging to the Myoviridae family demonstrating more rapid inactivation in comparison to those belonging to the Siphoviridae family. SIGNIFICANCE AND IMPACT OF STUDY: The results suggest that while Enterococcus MW47 phages appear to be a potentially valuable MST tools, significant variations in the persistence of the different phages mean that the approach should be used with caution, as this may adversely affect the reliability of the approach, especially when comparing MW47 phage levels or the presence across different matrices (e.g. levels in sediments or shellfish). This highlights the importance of elucidating the ecological characteristics of newly proposed MST markers before they are used in full-scale MST investigations. PMID- 29349838 TI - Patent foramen ovale repair at the time of double lung transplantation: Necessary or not? AB - INTRODUCTION: Patient foramen ovale (PFO) is a common and often incidental intraoperative finding during lung transplantation (LTx). We sought to characterize the potential outcomes related to the decision making of whether the PFO was repaired or left unrepaired. METHODS: We retrospectively evaluated bilateral LTx recipients between 2005 and 2015 from our prospective database. Incidence of postoperative stoke, 90-day mortality, and overall survival was compared between the PFO-positive and PFO-negative groups, and secondly compared between repaired PFO (rPFO) and non-repaired PFO (nrPFO) groups. RESULTS: A total of 831 LTx recipients were analyzed: 185 PFO-positive (140 nrPFO, 45 rPFO) and 646 PFO-negative. Study groups were similar with regard to age and comorbidity. The presence of PFO was not associated with a difference in postoperative stroke (P = .89) or 90-day mortality (P = .64). In patients with PFO, intraoperative repair resulted in a lower, but non-significant rate of stroke (0% vs 5%; P = .20) and no difference in mortality (P = .26). As expected, PFO and PFO repair were both associated with a higher incidence of cardiopulmonary bypass utilization, but no difference in pump-related complications. CONCLUSIONS: The protective effect of PFO repair remains unclear. However, it is not associated with an increased incidence of stroke or postoperative mortality following LTx. PMID- 29349839 TI - Inflammatory biomarkers and intellectual disability in patients with Down syndrome. AB - BACKGROUND: Intellectual disability (ID) is part of the Down syndrome (DS) phenotypic spectrum, but the exact molecular pathophysiology of ID in individuals with DS is not yet fully understood, with many research hypotheses still unproven. Basing on previous studies (which suggested a possible role of altered inflammatory response in DS-related ID), we assessed the serum levels of a number of inflammatory biomarkers [serum amyloid A (SAA), C-reactive protein (C-RP), high mobility group box-1 (HMGB1)] in a cohort of individuals with DS and healthy controls. METHODS: In total, 24 children diagnosed with DS and 12 healthy controls were enrolled, and all underwent detailed cognitive assessment. Also, serum SAA, C-RP and HMGB1 levels were measured in all recruited subjects and correlated to the severity of ID in the DS group. RESULTS: Serum SAA, C-RP and HMGB1 values were found to be significantly higher in the DS group compared with the healthy subjects (P = 0.001). In addition, serum HMGB1 levels positively correlated with C-RP and SAA in the DS group but not in the healthy controls. Only serum C-RP levels resulted inversely correlated (P < 0.01) with intelligence quotient (IQ); conversely, significant statistical correlations between serum SAA levels and IQ (as well as between HMGB1 and IQ) have been not found (P > 0.05). CONCLUSIONS: The levels of the determined markers were higher in DS individuals compared with (cognitively) healthy subjects, and CRP showed a negative correlation with IQ in children with DS. PMID- 29349840 TI - The Preference for Pointing With the Hand Is Not Universal. AB - Pointing is a cornerstone of human communication, but does it take the same form in all cultures? Manual pointing with the index finger appears to be used universally, and it is often assumed to be universally preferred over other forms. Non-manual pointing with the head and face has also been widely attested, but it is usually considered of marginal significance, both empirically and theoretically. Here, we challenge this assumed marginality. Using a novel communication task, we investigated pointing preferences in the Yupno of Papua New Guinea and in U.S. undergraduates. Speakers in both groups pointed at similar rates, but form preferences differed starkly: The Yupno participants used non manual pointing (nose- and head-pointing) numerically more often than manual pointing, whereas the U.S. participants stuck unwaveringly to index-finger pointing. The findings raise questions about why groups differ in their pointing preferences and, more broadly, about why humans communicate in the ways they do. PMID- 29349841 TI - Novel MOF-Derived Co@N-C Bifunctional Catalysts for Highly Efficient Zn-Air Batteries and Water Splitting. AB - Metal-organic frameworks (MOFs) and MOF-derived materials have recently attracted considerable interest as alternatives to noble-metal electrocatalysts. Herein, the rational design and synthesis of a new class of Co@N-C materials (C-MOF-C2-T) from a pair of enantiotopic chiral 3D MOFs by pyrolysis at temperature T is reported. The newly developed C-MOF-C2-900 with a unique 3D hierarchical rodlike structure, consisting of homogeneously distributed cobalt nanoparticles encapsulated by partially graphitized N-doped carbon rings along the rod length, exhibits higher electrocatalytic activities for oxygen reduction and oxygen evolution reactions (ORR and OER) than that of commercial Pt/C and RuO2 , respectively. Primary Zn-air batteries based on C-MOF-900 for the oxygen reduction reaction (ORR) operated at a discharge potential of 1.30 V with a specific capacity of 741 mA h gZn-1 under 10 mA cm-2 . Rechargeable Zn-air batteries based on C-MOF-C2-900 as an ORR and OER bifunctional catalyst exhibit initial charge and discharge potentials at 1.81 and 1.28 V (2 mA cm-2 ), along with an excellent cycling stability with no increase in polarization even after 120 h - outperform their counterparts based on noble-metal-based air electrodes. The resultant rechargeable Zn-air batteries are used to efficiently power electrochemical water-splitting systems, demonstrating promising potential as integrated green energy systems for practical applications. PMID- 29349842 TI - Is "end of life" a special case? Connecting Q with survey methods to measure societal support for views on the value of life-extending treatments. AB - Preference elicitation studies reporting societal views on the relative value of end-of-life treatments have produced equivocal results. This paper presents an alternative method, combining Q methodology and survey techniques (Q2S) to determine the distribution of 3 viewpoints on the relative value of end-of-life treatments identified in a previous, published, phase of this work. These were Viewpoint 1, "A population perspective: value for money, no special cases"; Viewpoint 2, "Life is precious: valuing life-extension and patient choice"; and Viewpoint 3, "Valuing wider benefits and opportunity cost: the quality of life and death." A Q2S survey of 4,902 respondents across the United Kingdom measured agreement with these viewpoints; 37% most agreed with Viewpoint 1, 49% with Viewpoint 2, and 9% with Viewpoint 3. Regression analysis showed associations of viewpoints with gender, level of education, religion, voting preferences, and satisfaction with the NHS. The Q2S approach provides a promising means to investigate how in-depth views and opinions are represented in the wider population. As demonstrated in this study, there is often more than 1 viewpoint on a topic and methods that seek to estimate that averages may not provide the best guidance for societal decision-making. PMID- 29349844 TI - Exploration of joint working practices on anti-social behaviour between criminal justice, mental health and social care agencies: A qualitative study. AB - Although the police play an important role for people with mental health problems in the community, little is known about joint working practices between mental health, social care and police services. There is potential for tensions and negative outcomes for people with mental health problems, in particular when the focus is on behaviours that could be interpreted as anti-social. This study explores perceptions about joint working between mental health, social care and police services with regard to anti-social behaviour. We conducted a multi-method sequential qualitative study in the UK collecting data between April 2014 and August 2016. Data were collected from two study sites: 60 narrative police logs of routinely gathered information, and semi-structured interviews and focus groups with professionals from a range of statutory and third sector organisations (N = 55). Data sets were analysed individually, using thematic iterative coding before integrating the findings. We also looked at sequencing and turning points in the police logs. Findings mapped on a continuum of joint working practices, with examples more likely to be away from the policy ideal of partnership working as being central to mainstream activities. Joint working was driven by legal obligations and concerns about risk rather than a focus on the needs of a person with mental health problems. This was complicated by different perceptions of the police role in mental health. Adding anti-social behaviour to this mix intensified challenges as conceptualisation of the nature of the problem and agreeing on best practice and care is open to interpretations and judgements. Of concern is an evident lack of awareness of these issues. There is a need to reflect on joint working practices, including processes and goals, keeping in mind the health and welfare needs of people with mental health problems. PMID- 29349843 TI - Pregnancy after bariatric surgery: Maternal and fetal outcomes of 39 pregnancies and a literature review. AB - AIM: We aimed to evaluate the impact of bariatric surgery (BS) on maternal and fetal outcomes. METHODS: A retrospective, descriptive, observational study of 39 pregnant women who underwent BS in our institution between 2010 and 2014 was carried out. A sample of women who became pregnant after BS was evaluated, based on data concerning pregnancy, childbirth, and newborns. RESULTS: Of the 1182 patients who underwent BS at our institution during the study period, 1016 (85.9%) were women. Thirty-nine of these women (with an average age of 31 +/- 4.8 years) became pregnant (one twin pregnancy) and 29 of the 39 had undergone a gastric bypass. The mean time interval between BS and pregnancy was 16.6 +/- 4.8 months; however, 16 (41%) women became pregnant less than a year after BS. The pre-BS body mass index (BMI) of the 39 women was 44.5 +/- 6.2 kg/m2 . The women had a mean BMI of 30.2 +/- 3.8 kg/m2 when they got pregnant and they gained 13.2 +/- 7.3 kg during pregnancy. Iron deficiency was observed in 18 (46.1%) women, 16 (45.7%) had vitamin B12 deficiency, 12 (66.8%) had zinc deficiency, and 20 (60.6%) had vitamin D deficiency. Three women developed gestational diabetes mellitus. Premature rupture of membranes occurred in two pregnancies, preterm delivery in five, and there was one spontaneous abortion. Cesarean section was performed in seven cases. The average newborn weight was 3002 +/- 587 g, five were small for gestational age, and one had macrosomia. Three infants had to be admitted to an intensive care unit. CONCLUSION: Although pregnancy after BS is safe and well tolerated, close monitoring by a multidisciplinary team is required to evaluate complications resulting from BS, especially a deficit of micronutrients. PMID- 29349845 TI - Effects of intravenous tryptophan infusion on thermoregulation in steers exposed to acute heat stress. AB - This study was conducted to investigate the effect of tryptophan (TRP) supply on the thermoregulatory responses via brain serotonin (5-HT) in cattle. In period 1, 12 Holstein steers were kept under a constant room temperature (22 degrees C) and were administered the intravenous (i.v.) infusion of saline or TRP (38.5 mg/kg/2 h). Changes in rectal temperature (RT), 5-HT concentration in the cerebrospinal fluid (CSF), and other factors involved in thermoregulation were measured. In period 2, the steers received the same treatments as in period 1; however, the room temperature was elevated from 22 degrees C to 33 degrees C during i.v. infusion and maintained at 33 degrees C for 3 h. 5-HT concentration in CSF increased following TRP infusion in both periods, and RT significantly decreased following TRP infusion only in period 2. The effect of TRP on respiration rate and plasma prolactin and total triiodothyronine concentrations was not significant. These results suggest that increase in TRP supply can attenuate increase in RT in response to acute heat stress through the increase in brain 5 HT, followed by presumable increase in evaporative heat loss from the skin surface in cattle. It is possible that the increase in peripheral blood TRP metabolites could also participate in the hypothermic effect of TRP. PMID- 29349846 TI - Preparation of dummy template-imprinted polymers for the rapid extraction of nonsteroidal anti-inflammatory drugs residues in aquatic environmental samples. AB - A molecularly imprinted polymer was synthesized and applied as a sorbent in the solid-phase extraction device. The imprinted polymer was characterized by fourier transform infrared spectroscopy and scanning electron microscope. The results revealed that imprinted polymer possess sensitive selectivity and reliable adsorption properties for five NSAIDs. The imprinted polymer was successfully applied to the pre-concentration for five NSAIDs in different water samples prior to UPLC-MS/MS. In the early studies, several factors were investigated, including pH adjustment, the kind of elution solvent and the volume of elution solvent. Finally, we found that the pH 5 and an aliquot of 2 mL methanol were suitable for the water samples. The limits of detection and limits of quantitation of five nonsteroidal anti-inflammatory drugs varied from 0.007 to 0.480 MUg L-1 and 0.03 to 1.58 MUg L-1 , respectively. The spiking recoveries of the target analytes were 50.33-127.64% at the levels of 0.2 MUg L-1 , 2 MUg L-1 and 5 MUg L-1 . The precision and accuracy of this method showed a great increase compared with traditional solid-phase extraction. The developed method was successfully applied to extraction and analysis of NSAIDs in different water samples with satisfactory results which could help us better understand their environmental fate and risk to ecological health. PMID- 29349847 TI - Increased pain sensitivity in migraine and tension-type headache coexistent with low back pain: A cross-sectional population study. AB - BACKGROUND: Low back pain is common in the general population and in individuals with primary headaches. We assessed the relative frequency of self-reported back pain in persons with and without primary headaches and examined pain sensitivity. METHOD: A population of 796 individuals completed a headache interview based on ICHD criteria and provided data of interest in a self-administered questionnaire. Headache cases were classified into chronic (>=15) (CH) or episodic (<15 headache days/month) (EH). A total of 495 had a pericranial total tenderness score (TTS), and 494 had cephalic and extracephalic pressure pain thresholds (PPTs) assessed. RESULTS: Adjusted for age, gender, education and poor self-rated health, 1-year relative frequency of back pain was higher in individuals with CH (82.5%) and EH (80.1%) compared to no headache group (65.7%). In persons with back pain, TTS was higher in CH, (26.3 +/- 12.1) than in EH, (18.5 +/- 10.0; p < 0.001) and higher in both groups than in those with no headache, 10.8 +/- 8.5 (p < 0.001 and p < 0.001, respectively). In persons with back pain, temporalis PPT were lower in CH, 169.3 +/- 57.8, than in EH, 225.2 +/- 98.1, and in no headache group, 244.3 +/- 105.4 (p = 0.02 and p = 0.01, respectively). In persons with back pain, finger PPT were lower in CH, 237.1 +/- 106.7, than in EH, 291.3 +/- 141.3, or in no headache group, 304.3 +/- 137.4 (p = 0.02 and p < 0.001, respectively). CONCLUSION: Back pain is highly frequent in individuals with CH, followed by EH and no headache. In persons with CH, back pain is associated with lower cephalic and extracephalic PPTs suggesting central sensitization may be a substrate or consequence of comorbidity. SIGNIFICANCE: We found that back pain has high relative frequency in individuals with CH followed EH and no headache. Back pain is associated with low cephalic and extracephalic PPTs in individuals with CH. Central sensitization may be a substrate or consequence of this comorbidity of back pain and CH. PMID- 29349848 TI - Evaluation of the stability and stratification of propofol and ketamine mixtures for pediatric anesthesia. AB - BACKGROUND: The combination of propofol and ketamine is commonly used for total intravenous anesthesia. These drugs can be delivered in different syringes or in the same syringe. We hypothesized that the drugs might separate and different concentrations of each drug could be found in different parts of the syringe during the procedure period when they were mixed in 1 syringe. METHODS: Twelve 60 mL polypropylene syringes were prepared by mixing propofol and ketamine as 4 groups on the basis of propofol/ketamine mixture ratios (5:1 and 6.7:1) and propofol solution concentrations. Syringes were placed upright in the vertical position into a rack and kept at room temperature (21.5-22.5 degrees C), in daylight conditions and were not moved for 360 minutes. Samples of the mixture were taken from both the top and the bottom of the syringe. The first 1 mL of the samples was discarded, the following second 1 mL of the samples was filtered using 0.2-MUm polytetrafluoroethylene filters and measured twice (n = 6). Samples were taken at the following time intervals: T0, T10, T30, T60, T90, T120, T180, T240, T300, and T360 min. Syringes were checked visually for any color change and separation lines between the drugs. RESULTS: There were no significant differences between the propofol and ketamine concentrations of the top and bottom samples in all 4 groups. In addition, there were no statistically significant changes of propofol and ketamine concentrations of samples over 360 minutes in any of the 4 groups. No visual changes were observed during 6 hours' observation. CONCLUSION: The results of our measurements demonstrated that mixtures of propofol (1% and 2%) and ketamine at 5:1 and 6.7:1 ratios could be used in terms of mixture homogeneity and stability in a polypropylene syringe during a 6-hour period at room temperature. PMID- 29349849 TI - The optimal intestinal segment length for experimental size-mismatched intestinal transplantation: Defining the maximum length with the lowest blood flow needs in a porcine model. AB - Transplanted Intestinal Segments (IS) must match the perfusion capacities of the recipient. This can be challenging during a size-mismatched SBTX. In this study, we defined the maximum IS length with lowest blood flow needs in a porcine model by evaluating the physiological perfusion rates of different IS lengths. Blood flow in the SMA, aorta segment four, and general circulatory parameters were monitored before and after sequential intestinal resection. IS lengths of 30 cm, 60 cm, 120 cm, and 300 cm (n = 8 each) were compared. The IS blood flow requirements increased with IS length (30 cm: 19.5 +/- 3.4 mL/min; 60 cm: 16.9 +/ 6.7 mL/min; 120 cm: 34.9 +/- 8.5 mL/min; 300 cm: 62.9 +/- 11.6 mL/min). Absolute IS blood flow (P = .004), percentage IS blood flow uptake from the SMA (P = .001), and percentage IS blood flow uptake from the aorta (P = .005) increased significantly between 60 cm and 120 cm. We concluded that 60 cm was the maximum IS length before blood flow demands significantly increased in a porcine model. PMID- 29349850 TI - Reconstructing geographical parthenogenesis: effects of niche differentiation and reproductive mode on Holocene range expansion of an alpine plant. AB - Asexual taxa often have larger ranges than their sexual progenitors, particularly in areas affected by Pleistocene glaciations. The reasons given for this 'geographical parthenogenesis' are contentious, with expansion of the ecological niche or colonisation advantages of uniparental reproduction assumed most important in case of plants. Here, we parameterized a spread model for the alpine buttercup Ranunculus kuepferi and reconstructed the joint Holocene range expansion of its sexual and apomictic cytotype across the European Alps under different simulation settings. We found that, rather than niche broadening or a higher migration rate, a shift of the apomict's niche towards colder conditions per se was crucial as it facilitated overcoming of topographical barriers, a factor likely relevant for many alpine apomicts. More generally, our simulations suggest potentially strong interacting effects of niche differentiation and reproductive modes on range formation of related sexual and asexual taxa arising from their differential sensitivity to minority cytotype disadvantage. PMID- 29349851 TI - Clinical and molecular implications of structural changes to desmosomes and corneodesmosomes. AB - Desmosomes provide the main intercellular adhesive properties between epidermal keratinocytes. Their distribution becomes uneven in severe dermatitis, multiple allergies and metabolic wasting syndrome due to desmoglein 1 deficiency and the loss of intercellular adhesion or acantholysis. When keratinocytes differentiate from granular cells into cornified cells, desmosomes are transformed into corneodesmosomes and can provide stronger intercellular adhesion. Degradation of corneodesmosomes is a tightly regulated process involving a number of proteases and their inhibitors. Peripheral corneodesmosomes are protected from proteolytic degradation by the tight junction-related structures around them, and this construction provides the basis for the normal basket weave-like structure of the stratum corneum. In Netherton syndrome, which is caused by an absence of the protease inhibitor lymphoepithelial Kazal-type-related inhibitor, premature degradation of corneodesmosomes occurs due to the overactivation of proteases involved in corneodesmosome degradation. Inflammatory peeling skin disease is caused by the absence of corneodesmosin, a unique component of corneodesmosomes. In this disease, corneodesmosomes are structurally abnormal, and their adhesiveness is compromised, which leads to intercellular splitting between the stratum corneum and stratum granulosum. The better we understand desmosome and corneodesmosome ultrastructure in normal and diseased skin, the clearer the physiological and pathological mechanisms of epidermal integrity become. PMID- 29349852 TI - What really matters to people with aphasia when it comes to group work? A qualitative investigation of factors impacting participation and integration. AB - BACKGROUND: Participation in a group environment is an inherently complex undertaking for people with aphasia. It involves engaging in multi-person interactions with other people who may have a range of communication strengths and strategies at their disposal. The potential challenges of community aphasia group participation and practice has had limited attention in the research literature. Evidence from group users have primarily been drawn from the perspective of long-term members or those participating in highly specific and time-bound groups. There is a need to explore the experiences of a broader sample, including people who have left groups, to improve our understanding of structures, processes as well as leadership behaviours that may facilitate positive group participation experiences. AIM: To examine the potential factors operating within the group environment that contribute to positive and negative participation experiences. METHODS & PROCEDURES: Twenty-two people with aphasia participated in semi-structured interviews about their experiences of community aphasia groups. People who maintained long-term membership as well as those who had left groups were sampled. An interpretative phenomenological framework was employed to examine the data collected. OUTCOMES & RESULTS: Seven factors emerged as central to participation experiences and contributed to the ability of people with aphasia to integrate and engage in the group space. These factors included: (1) balanced interactional patterns; (2) an open and non-hierarchical group environment; (3) communication awareness and education amongst members; (4) meaningful activity; (5) ritual and structure; (6) composition and group size; and (7) group leadership. CONCLUSIONS & IMPLICATIONS: People with aphasia perceive community aphasia-group participation to be beneficial to their ability to live well with aphasia. However, a range of challenges to successful participation are also evident. Inputs such as peer-to-peer communication strategies, shared roles and responsibilities, and consultation with regard to group objectives and processes provide group members with the opportunity to become active contributors, demonstrate competence and have influence over the group. When inputs are poorly implemented or absent, people with aphasia are at risk of feeling disabled and marginalized by the group experience. PMID- 29349853 TI - Piezotronic Tuning of Potential Barriers in ZnO Bicrystals. AB - Coupling of magnetic, ferroelectric, or piezoelectric properties with charge transport at oxide interfaces provides the option to revolutionize classical electronics. Here, the modulation of electrostatic potential barriers at tailored ZnO bicrystal interfaces by stress-induced piezoelectric polarization is reported. Specimen design by epitaxial solid-state transformation allows for both optimal polarization vector alignment and tailoring of defect states at a semiconductor-semiconductor interface. Both quantities are probed by transmission electron microscopy. Consequently, uniaxial compressive stress affords a complete reduction of the potential barrier height at interfaces with head-to-head orientation of the piezoelectric polarization vectors and an increase in potential barrier height at interfaces with tail-to-tail orientation. The magnitude of this coupling between mechanical input and electrical transport opens pathways to the design of multifunctional electronic devices like strain triggered transistors, diodes, and stress sensors with feasible applications for human-computer interfacing. PMID- 29349854 TI - Implementing health and social care integration in Scotland: Renegotiating new partnerships in changing cultures of care. AB - Health and social care integration has been a long-term goal for successive governments in Scotland, culminating in the implementation of the recent Public Bodies (Joint Working) Scotland Act 2014. This laid down the foundations for the delegation of health and social care functions and resources to newly formed Integrated Joint Boards. It put in place demands for new ways of working and partnership planning. In this article, we explore the early implementation of this Act and how health and social care professionals and the third sector have begun to renegotiate their roles. The paper draws on new empirical data collated through focus groups and interviews with over 70 professionals from across Scotland. The data are explored through the following key themes: changing cultures, structural imbalance, governance and partnership and the role of individuals or "boundary spanners" in implementing change. We also draw on evidence from other international systems of care, which have implemented integration policies, documenting what works and what does not. We argue that under the current framework much of the potential for integration is not being fulfilled and that the evidence suggests that at this early stage of roll-out, the structural and cultural policy changes that are required to enable this policy shift have not yet emerged. Rather, integration has been left to individual innovators or "boundary spanners" and these are acting as key drivers of change. Where change is occurring, this is happening despite the system. As it is currently structured, we argue that too much power is in the hands of health and despite the rhetoric of partnership working, there are real structural imbalances that need to be reconciled. PMID- 29349855 TI - Understanding remote Aboriginal drug and alcohol residential rehabilitation clients: Who attends, who leaves and who stays? AB - INTRODUCTION AND AIMS: Aboriginal residential rehabilitation services provide healing for Aboriginal people who misuse substances. There is limited available research that empirically describes client characteristics of these services. This study examined 5 years of data of a remote Aboriginal residential rehabilitation service. DESIGN AND METHODS: Retrospective analysis of 329 client admissions to Orana Haven Drug and Alcohol Rehabilitation Centre from 2011 to 2016. Multinomial and binary logistic regressions were conducted to identify trends in the data. RESULTS: There were 66 admissions recorded annually, of which most identified as Aboriginal (85%). Mean length of stay was 56 days, with one in three (36%) discharging within the first month. A third (32%) completed, 47% self discharged and 20% house-discharged from the program. Client age significantly increased over time (P = 0.03), with most aged from 26 to 35. Older clients were significantly more likely to readmit (P < 0.002) and stay longer than 90 days (P = 0.02). Most clients were referred from the criminal justice system, significantly increasing from 79% (2011-2012) to 96% (2015-2016) (P < 0.001) and these clients were more likely to self-discharge (P < 0.01). Among a subset of clients, most (69%) reported concerns with polysubstance use and half (51%) reported mental illness. DISCUSSION AND CONCLUSIONS: The current study makes a unique contribution to the literature by empirically describing the characteristics of clients of a remote Aboriginal residential rehabilitation service to more accurately tailor the service to the client's needs. Key recommendations include integrating these empirical observations with staff and client perceptions to co-design a model of care, standardise data collection, and routinely following-up clients to monitor treatment effectiveness. PMID- 29349856 TI - Self-responsibility, rationing and treatment decision making - managing moral narratives alongside fiscal reality in the obesity surgery clinic. AB - BACKGROUND: Addressing the prevalence of severe obesity and its concomitant morbidities is widely acknowledged as one of the most pressing global health priorities. Nevertheless, a paucity of effective interventions and universal pressure on health-care budgets means that access to obesity treatments is often limited. Although health-care rationing can be conceived as a socially constructed process, little is known about how decisions emerge within the context of face-to-face doctor-patient interactions. METHODS: In this study, we used in-depth interviews and clinic observations to investigate clinicians' (n = 11) and patients' (n = 22) experiences of the rationing of obesity surgery and to examine how broader cultural assumptions around personal responsibility for health emerged in the context of clinical interactions. RESULTS: Patients and clinicians worked within similar frameworks when it came to self-responsibility for health and the appropriateness of providing publicly-funded weight loss surgery. Issues around personal accountability dominated consultations, and patients were expected to provide narratives of the development of their obesity and to account for the failure of previous interventions. Clinicians faced the added pressure of having to prioritise a limited number of patients for surgery, which was predominantly managed through mandating pre-referral weight loss targets. DISCUSSION: Although clinicians sought to maintain an empathic attitude towards individual patients, in practice they were conflicted by their responsibility to ration health-care resources and tended to rely on entrenched models of behaviour change to allocate treatment. As a result, the content of consultations was mostly focused on issues of personal responsibility, reflecting wider stigmatized attitudes towards extreme obesity. PMID- 29349858 TI - Efficient, Hysteresis-Free, and Stable Perovskite Solar Cells with ZnO as Electron-Transport Layer: Effect of Surface Passivation. AB - The power conversion efficiency of perovskite solar cells (PSCs) has ascended from 3.8% to 22.1% in recent years. ZnO has been well-documented as an excellent electron-transport material. However, the poor chemical compatibility between ZnO and organo-metal halide perovskite makes it highly challenging to obtain highly efficient and stable PSCs using ZnO as the electron-transport layer. It is demonstrated in this work that the surface passivation of ZnO by a thin layer of MgO and protonated ethanolamine (EA) readily makes ZnO as a very promising electron-transporting material for creating hysteresis-free, efficient, and stable PSCs. Systematic studies in this work reveal several important roles of the modification: (i) MgO inhibits the interfacial charge recombination, and thus enhances cell performance and stability; (ii) the protonated EA promotes the effective electron transport from perovskite to ZnO, further fully eliminating PSCs hysteresis; (iii) the modification makes ZnO compatible with perovskite, nicely resolving the instability of ZnO/perovskite interface. With all these findings, PSCs with the best efficiency up to 21.1% and no hysteresis are successfully fabricated. PSCs stable in air for more than 300 h are achieved when graphene is used to further encapsulate the cells. PMID- 29349859 TI - Re: Peripartum hysterectomy: an economic analysis of direct healthcare costs using routinely collected data: Some concerns from obstetricians' viewpoint. PMID- 29349857 TI - A Diazido Mannose Analogue as a Chemoenzymatic Synthon for Synthesizing Di-N acetyllegionaminic Acid-Containing Glycosides. AB - A chemoenzymatic synthon was designed to expand the scope of the chemoenzymatic synthesis of carbohydrates. The synthon was enzymatically converted into carbohydrate analogues, which were readily derivatized chemically to produce the desired targets. The strategy is demonstrated for the synthesis of glycosides containing 7,9-di-N-acetyllegionaminic acid (Leg5,7Ac2 ), a bacterial nonulosonic acid (NulO) analogue of sialic acid. A versatile library of alpha2-3/6-linked Leg5,7Ac2 -glycosides was built by using chemically synthesized 2,4-diazido-2,4,6 trideoxymannose as a chemoenzymatic synthon for highly efficient one-pot multienzyme (OPME) sialylation followed by downstream chemical conversion of the azido groups into acetamido groups. The syntheses required 10 steps from commercially available d-fucose and had an overall yield of 34-52 %, thus representing a significant improvement over previous methods. Free Leg5,7Ac2 monosaccharide was also synthesized by a sialic acid aldolase-catalyzed reaction. PMID- 29349860 TI - Effects of maternal anthropometrics on pregnancy outcomes in South Asian women: a systematic review. AB - AIM: This systematic review investigates associations between maternal pre pregnancy/early-pregnancy anthropometrics (e.g. weight and body fat), anthropometric change and pregnancy outcomes in South Asian and White women. METHODS: Twelve electronic literature databases, reference lists and citations of all included studies were searched. Observational studies published in the English language were included. Descriptive synthesis was used to summarize the evidence base. RESULTS: Twenty-two studies met the inclusion criteria (403,609 births [351,856 White and 51,753 South Asian]). Nine were prospective cohort studies, nine were retrospective cohort studies and two were cross-sectional studies. Results suggested that in South Asian women, maternal pre pregnancy/early-pregnancy anthropometrics were associated with anthropometric change, birthweight, mode of delivery and gestational diabetes mellitus (GDM). Gestational anthropometric change was found to be associated with GDM. There was limited evidence to suggest that there may be associations between maternal pre anthropometrics/early anthropometrics and hypertensive disorders, stillbirth, congenital anomalies, post-natal weight retention and post-natal impaired glucose tolerance. The evidence suggested a combined effect of pre-pregnancy/early pregnancy anthropometrics and gestational anthropometric change on both GDM and post-natal weight retention. CONCLUSION: The increased risk of adverse pregnancy outcomes in South Asian women should be considered in guidelines for weight management before and during pregnancy. PMID- 29349861 TI - Validated UPLC-MS/MS method for quantification of seven compounds in rat plasma and tissues: Application to pharmacokinetic and tissue distribution studies in rats after oral administration of extract of Eclipta prostrata L. AB - A rapid, sensitive and specific ultra-high-performance liquid chromatography coupled with tandem mass spectrometry (UPLC-MS/MS) method was developed to investigate the pharmacokinetics and tissue distribution of Eclipta prostrata extract. Rats were orally administrated the 70% ethanol extract of E. prostrata, and their plasma as well as various organs were collected. The concentrations of seven main compounds, ecliptasaponin IV, ecliptasaponin A, apigenin, 3' hydroxybiochanin A, luteolin, luteolin-7-O-glucoside and wedelolactone, were quantified by UPLC-MS/MS through multiple reactions monitoring method. The precisions (RSD) of the analytes were all <15.00%. The extraction recoveries ranged from 74.65 to 107.45% with RSD <= 15.36%. The matrix effects ranged from 78.00 to 118.06% with RSD <= 15.04%. To conclude, the present pharmacokinetic and tissue distribution studies provided useful information for the clinical usage of Eclipta prostrata L. PMID- 29349862 TI - Implementing managed alcohol programs in hospital settings: A review of academic and grey literature. AB - ISSUES: People with severe alcohol use disorders are at increased risk of poor acute-care outcomes, in part due to difficulties maintaining abstinence from alcohol while hospitalised. Managed alcohol programs (MAP), which administer controlled doses of beverage alcohol to prevent withdrawal and stabilise drinking patterns, are one strategy for increasing adherence to treatment, and improving health outcomes for hospital inpatients with severe alcohol use disorders. APPROACH: Minimal research has examined the implementation of MAPs in hospital settings. We conducted a scoping review to describe extant literature on MAPs in community settings, as well as the therapeutic provision of alcohol to hospital inpatients, to assess the feasibility of implementing formal MAPs in hospital settings and identify knowledge gaps requiring further study. Four academic and 10 grey literature databases were searched. Evidence was synthesised using quantitative and qualitative approaches. KEY FINDINGS: Forty-two studies met review inclusion criteria. Twenty-eight examined the administration of alcohol to hospital inpatients, with most reporting positive outcomes related to prevention or treatment of alcohol withdrawal. Fourteen studies examined MAPs in the community and reported that they help stabilise drinking patterns, reduce alcohol related harms and facilitate non-judgemental health and social care. IMPLICATIONS/CONCLUSIONS: MAPs in the community have been well described and research has documented effective provision of alcohol in hospital settings for addressing withdrawal. Implementing MAPs as a harm reduction approach in hospital settings is potentially feasible. However, there remains a need to build off extant literature and develop and evaluate standardised MAP protocols tailored to acute-care settings. PMID- 29349863 TI - Experimental Observation of Thermally Excited Triplet States of Heavier Group 15 Element Centered Diradical Dianions. AB - One-electron reductions of Mes*As=Fl* (1; Fl*=2,7-di-tert-butylfluorenylidene, Mes*=2,4,6-tBu3 C6 H2 ) and diarsaalkenes [1,2-b]-IF(=AsMes*)2 (2; IF=indenofluorene) with potassium led to the isolation of the arsenic-centered radical anion salts 1K and 2K, respectively. The diradical dianion salts 2K2 and 3K2 were afforded by the reduction of 2 and 2,8-tBu2 -[2,1-b]-IF(=AsMes*)2 (3) with an excess amount of KC8 . The radicals have been investigated by single crystal X-ray crystallography, EPR, and UV/Vis absorption spectroscopy, along with theoretical calculations. The calculations revealed that 2K2 and 3K2 feature open-shell singlet ground states with singlet-triplet energy gaps of 2.1 and 1.0 kcal mol-1 , respectively. They are readily thermally excited to triplet states as demonstrated by EPR spectroscopy. The obtained diradicals represent the first examples of heavier Group 15 element centered diradicals with experimentally observable triplet states. PMID- 29349865 TI - Superfast Room-Temperature Activation of SnO2 Thin Films via Atmospheric Plasma Oxidation and their Application in Planar Perovskite Photovoltaics. AB - The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has now exceeded 20%; thus, research focus has shifted to establishing the foundations for commercialization. One of the pivotal themes is to curtail the overall fabrication time, to reduce unit cost, and mass-produce PSCs. Additionally, energy dissipation during the thermal annealing (TA) stage must be minimized by realizing a genuine low-temperature (LT) process. Here, tin oxide (SnO2 ) thin films (TFs) are formulated at extremely high speed, within 5 min, under an almost room-temperature environment (<50 degrees C), using atmospheric Ar/O2 plasma energy (P-SnO2 ) and are applied as an electron transport layer of a "n-i-p"-type planar PSC. Compared with a thermally annealed SnO2 TF (T-SnO2 ), the P-SnO2 TF yields a more even surface but also outstanding electrical conductivity with higher electron mobility and a lower number of charge trap sites, consequently achieving a superior PCE of 19.56% in P-SnO2 -based PSCs. These findings motivate the use of a plasma strategy to fabricate various metal oxide TFs using the sol gel route. PMID- 29349866 TI - Amorphous Materials for Enhanced Localized Surface Plasmon Resonances. AB - The discovery of localized surface plasmon resonance (LSPR) in semiconductor nanocrystals has initiated a new field in plasmonics. Plasmonic nanocrystals in particular have seen rapid development in recent years because they are a class of materials with unique photoelectronic properties. At present, a growing number of amorphous plasmonic materials has been steadily capturing scientific interest, though only a few of these are well characterized. Here we focus on recent developments in state-of-the art experiments and explore the vast library of plasmonic properties in amorphous materials, including their application fields and optical spectral range. Taken together, the growing regime of amorphous material plasmonics offers enticing avenues for harnessing light-matter interactions from the visible to the terahertz region, with new potential for optical manipulation beyond what can be accomplished using traditional crystal materials. PMID- 29349867 TI - Volumetric modulated arc therapy treatment planning of thoracic vertebral metastases using stereotactic body radiotherapy. AB - PURPOSE/OBJECTIVES: To retrospectively evaluate the plan quality, treatment efficiency, and accuracy of volumetric modulated arc therapy (VMAT) plans for thoracic spine metastases using stereotactic body radiotherapy (SBRT). MATERIALS/METHODS: Seven patients with thoracic vertebral metastases treated with noncoplanar hybrid arcs (NCHA) (1 to 2 3D-conformal partial arcs +7 to 9 IMRT beams) were re-optimized with VMAT plans using three coplanar arcs. Tumors were located between T2 and T7 and PTVs ranged between 24.3 and 240.1 cc (median 48.1 cc). All prescriptions were 30 Gy in 5 fractions with 6 MV beams treated using the Novalis Tx linac equipped with high definition multileaf collimators (HDMLC). MR images were fused with planning CTs for target and OAR contouring. Plans were compared for target coverage using conformality index (CI), homogeneity index (HI), D90, D98, D2, and Dmedian. Normal tissue sparing was evaluated by comparing doses to the spinal cord (Dmax, D0.35, and D1.2 cc), esophagus (Dmax and D5 cc), heart (Dmax, D15 cc), and lung (V5 and V10). Data analysis was performed with a two-sided t-test for each set of parameters. Dose delivery efficiency and accuracy of each VMAT plan was assessed via quality assurance (QA) using a MapCHECK device. The Beam-on time (BOT) was recorded, and a gamma index was used to compare dose agreement between the planned and measured doses. RESULTS: VMAT plans resulted in improved CI (1.02 vs. 1.36, P = 0.05), HI (0.14 vs. 0.27, P = 0.01), D98 (28.4 vs. 26.8 Gy, P = 0.03), D2 (32.9 vs. 36.0 Gy, P = 0.02), and Dmedian (31.4 vs. 33.7 Gy, P = 0.01). D90 was improved but not statistically significant (30.4 vs. 31.0 Gy, P = 0.38). VMAT plans showed statistically significant improvements in normal tissue sparing: Esophagus Dmax (22.5 vs. 27.0 Gy, P = 0.03), Esophagus 5 cc (17.6 vs. 21.5 Gy, P = 0.02), and Heart Dmax (13.1 vs. 15.8 Gy, P = 0.03). Improvements were also observed in spinal cord and lung sparing as well but were not statistically significant. The BOT showed significant reduction for VMAT, 4.7 +/- 0.6 min vs. 7.1 +/- 1 min for NCHA (not accounting for couch kicks). VMAT plans demonstrated an accurate dose delivery of 95.5 +/- 1.0% for clinical gamma passing rate of 3%/3 mm criteria, which was similar to NCHA plans. CONCLUSIONS: VMAT plans have shown improved dose distributions and normal tissue sparing compared to NCHA plans. Significant reductions in treatment time could potentially minimize patient discomfort and intrafraction movement errors. VMAT planning for SBRT is an attractive option for the treatment of metastases to thoracic vertebrae, and further investigation using alternative fractionation schedules is warranted. PMID- 29349868 TI - Workplace alcohol harm reduction intervention in Australia: Cluster non randomised controlled trial. AB - INTRODUCTION AND AIMS: The workplace holds substantial potential as an alcohol harm reduction and prevention setting. Few studies have rigorously examined strategies to reduce workplace alcohol-related harm. Hence, an in-situ 3 year trial of a comprehensive alcohol harm reduction intervention in Australian manufacturing workplaces was undertaken. DESIGN AND METHODS: Informed by a gap analysis, a multi-site trial was undertaken. Three manufacturing industry companies, located at four separate worksites, with a minimum of 100 employees were recruited through a local industry network. Based on worksite location, two worksites were allocated to the intervention group and two to the comparison group. The pre-specified primary outcome measure, risky drinking (Alcohol Use Disorders Identification Test, AUDIT-C) and other self-report measures were collected pre-intervention (T1), 12 months (T2) and 24 months post-intervention (T3). RESULTS: No significant intervention effect was observed for the primary outcome measure, risky drinking. Significant intervention effects were observed for increased awareness of alcohol policy and employee assistance. At T3, the odds of intervention group participants being aware of the workplace policy and aware of employee assistance were 48.9% (95% confidence interval 29.3-88.9%) and 79.7% (11.5%, 91.8%), respectively, greater than comparison group participants. DISCUSSION AND CONCLUSIONS: Comprehensive tailored workplace interventions can be effective in improving workplace alcohol policy awareness. This is one of few workplace alcohol trials undertaken to-date and the findings make an important contribution to the limited evidence base for workplace alcohol harm prevention initiatives. PMID- 29349864 TI - The morphometric co-atrophy networking of schizophrenia, autistic and obsessive spectrum disorders. AB - By means of a novel methodology that can statistically derive patterns of co alterations distribution from voxel-based morphological data, this study analyzes the patterns of brain alterations of three important psychiatric spectra-that is, schizophrenia spectrum disorder (SCZD), autistic spectrum disorder (ASD), and obsessive-compulsive spectrum disorder (OCSD). Our analysis provides five important results. First, in SCZD, ASD, and OCSD brain alterations do not distribute randomly but, rather, follow network-like patterns of co-alteration. Second, the clusters of co-altered areas form a net of alterations that can be defined as morphometric co-alteration network or co-atrophy network (in the case of gray matter decreases). Third, within this network certain cerebral areas can be identified as pathoconnectivity hubs, the alteration of which is supposed to enhance the development of neuronal abnormalities. Fourth, within the morphometric co-atrophy network of SCZD, ASD, and OCSD, a subnetwork composed of eleven highly connected nodes can be distinguished. This subnetwork encompasses the anterior insulae, inferior frontal areas, left superior temporal areas, left parahippocampal regions, left thalamus and right precentral gyri. Fifth, the co altered areas also exhibit a normal structural covariance pattern which overlaps, for some of these areas (like the insulae), the co-alteration pattern. These findings reveal that, similarly to neurodegenerative diseases, psychiatric disorders are characterized by anatomical alterations that distribute according to connectivity constraints so as to form identifiable morphometric co-atrophy patterns. PMID- 29349869 TI - Clostridium difficile infection is associated with graft loss in solid organ transplant recipients. AB - Clostridium difficile infection (CDI) is a leading cause of infectious diarrhea in solid organ transplant recipients (SOT). We aimed to assess incidence, risk factors, and outcome of CDI within the Swiss Transplant Cohort Study (STCS). We performed a case-control study of SOT recipients in the STCS diagnosed with CDI between May 2008 and August 2013. We matched 2 control subjects per case by age at transplantation, sex, and transplanted organ. A multivariable analysis was performed using conditional logistic regression to identify risk factors and evaluate outcome of CDI. Two thousand one hundred fifty-eight SOT recipients, comprising 87 cases of CDI and 174 matched controls were included. The overall CDI rate per 10 000 patient days was 0.47 (95% confidence interval ([CI] 0.38 0.58), with the highest rate in lung (1.48, 95% CI 0.93-2.24). In multivariable analysis, proven infections (hazard ratio [HR] 2.82, 95% CI 1.29-6.19) and antibiotic treatments (HR 4.51, 95% CI 2.03-10.0) during the preceding 3 months were independently associated with the development of CDI. Despite mild clinical presentations, recipients acquiring CDI posttransplantation had an increased risk of graft loss (HR 2.24, 95% CI 1.15-4.37; P = .02). These findings may help to improve the management of SOT recipients. PMID- 29349870 TI - Drug Dosing in Pregnant Women: Challenges and Opportunities in Using Physiologically Based Pharmacokinetic Modeling and Simulations. AB - The unmet medical need of providing evidence-based pharmacotherapy for pregnant women is recognized by the regulatory bodies. Physiologically based pharmacokinetic (PBPK) modeling offers an attractive platform to quantify anticipated changes in the pharmacokinetics (PKs) of drugs during pregnancy. Recent publications applying a pregnancy PBPK module to the prediction of maternal and fetal exposure of drugs are summarized. Future opportunities to use PBPK models to predict breast milk exposure and assess human fetotoxicity risks are presented. PMID- 29349871 TI - DSP30 and interleukin-2 as a mitotic stimulant in B-cell disorders including those with a low disease burden. AB - Chromosome abnormalities detected during cytogenetic investigations for B-cell malignancy offer prognostic information that can have wide ranging clinical impacts on patients. These impacts may include monitoring frequency, treatment type, and disease staging level. The use of the synthetic oligonucleotide DSP30 combined with interleukin 2 (IL2) has been described as an effective mitotic stimulant in B-cell disorders, not only in chronic lymphocytic leukemia (CLL) but also in a range of other B-cell malignancies. Here, we describe the comparison of two B-cell mitogens, lipopolysaccharide (LPS), and DSP30 combined with IL2 as mitogens in a range of common B-cell disorders excluding CLL. The results showed that DSP30/IL2 was an effective mitogen in mature B-cell disorders, revealing abnormal cytogenetic results in a range of B-cell malignancies. The abnormality rate increased when compared to the use of LPS to 64% (DSP30/IL2) from 14% (LPS). In a number of cases the disease burden was proportionally very low, less than 10% of white cells. In 37% of these cases, the DSP30 culture revealed abnormal results. Importantly, we also obtained abnormal conventional cytogenetics results in 3 bone marrow cases in which immunophenotyping showed an absence of an abnormal B-cell clone. In these cases, the cytogenetics results correlated with the provisional diagnosis and altered their staging level. The use of DSP30 and IL2 is recommended for use in many B-cell malignancies as an effective mitogen and their use has been shown to enable successful culture of the malignant clone, even at very low levels of disease. PMID- 29349872 TI - The personal communities of men experiencing later life widowhood. AB - Increasingly men are becoming widowed in later life due in part to a longer life expectancy. Social networks and social support are thought to help buffer the negative consequences of such later life transitions. This paper explores the personal communities of a group of older men experiencing widowhood. Qualitative in-depth interviews were conducted, September 2013-February 2014, with seven older widowers, 71-89 years of age, in North Staffordshire, UK. Interviews included personal community diagrams to identify the structure of the older men's social relationships. Data analysis comprised thematic analysis of interview transcripts and content analysis of personal community diagrams. Three overarching themes were identified from the interview data: "Personal identity and resilience assist transition," "Continuity in personal communities provides stability" and "Changes in social relationships and practices facilitate adaptation." The study identified three types of personal community among the older widowers, comprising different combinations of family, friends and others. The findings illustrate that some older widowers have very restricted personal communities which puts them at greater risk of loneliness and social isolation. The social needs of long-term carers should be addressed as isolation and loneliness can begin long before the death of a spouse. It is important to consider gender differences and preferences when designing interventions for older people in order to promote engagement, social inclusion and well-being. PMID- 29349873 TI - Carbon Molecular Sieve Membranes Derived from Troger's Base-Based Microporous Polyimide for Gas Separation. AB - Carbon molecular sieve (CMS)-based membranes have attracted great attention because of their outstanding gas-separation performance. The polymer precursor is a key point for the preparation of high-performance CMS membranes. In this work, a microporous polyimide precursor containing a Troger's base unit was used for the first time to prepare CMS membranes. By optimizing the pyrolysis procedure and the soaking temperature, three TB-CMS membranes were obtained. Gas-permeation tests revealed that the comprehensive gas-separation performance of the TB-CMS membranes was greatly enhanced relative to that of most state-of-the-art CMS membranes derived from polyimides reported so far. PMID- 29349874 TI - Assessment by Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry of the Effects of Preanalytical Variables on Serum Peptidome Profiles Following Long-Term Sample Storage. AB - PURPOSE: Human serum and plasma are often used as clinical specimens in proteomics analyses, and peptidome profiling of human serum is a promising tool for identifying novel disease-associated biomarkers. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is widely used for peptidomic biomarker discovery. Careful sample collection and handling are required as either can have a profound impact on serum peptidome patterns, yet the effects of preanalytical variables on serum peptidome profiles have not been completely elucidated. The present study investigated the effects of preanalytical variables, including storage temperature, duration (up to 12 months), and thawing methods, on MALDI-TOF MS-based serum peptidome patterns. EXPERIMENTAL DESIGN: Aliquots of serum samples were pretreated with weak cation exchanger magnetic beads using an automated ClinProtRobot system and then analyzed by MALDI-TOF MS. RESULTS: A number of significant differences in peak intensities were observed depending on sample processing variables. CONCLUSIONS AND CLINICAL RELEVANCE: These peaks can be used as sample quality markers to assess the effects of long-term storage on serum peptidome profiles using MALDI TOF MS. PMID- 29349875 TI - Preclinical QSP Modeling in the Pharmaceutical Industry: An IQ Consortium Survey Examining the Current Landscape. AB - A cross-industry survey was conducted to assess the landscape of preclinical quantitative systems pharmacology (QSP) modeling within pharmaceutical companies. This article presents the survey results, which provide insights on the current state of preclinical QSP modeling in addition to future opportunities. Our results call attention to the need for an aligned definition and consistent terminology around QSP, yet highlight the broad applicability and benefits preclinical QSP modeling is currently delivering. PMID- 29349876 TI - Effectiveness of A Body Shape Index (ABSI) in predicting chronic diseases and mortality: a systematic review and meta-analysis. AB - Anthropometric measures are simple, inexpensive, noninvasive tools to assess the risk of morbidity and mortality. This systematic review assessed the performance of A Body Shape Index (ABSI) in predicting hypertension, cardiovascular disease, type 2 diabetes and all-cause mortality and compared the differential predictability between ABSI and two other common anthropometric measures - body mass index and waist circumference. A keyword and reference search were conducted in the PubMed and Web of Science for articles published until 1 November 2017. Thirty-eight studies were included in the review, including 24 retrospective cohort studies and 14 cross-sectional studies conducted in 15 countries. Meta analysis found that a standard deviation increase in ABSI was associated with an increase in the odds of hypertension by 13% and type 2 diabetes by 35% and an increase in cardiovascular disease risk by 21% and all-cause mortality risk by 55%. ABSI outperformed body mass index and waist circumference in predicting all cause mortality but underperformed in predicting chronic diseases. ABSI is highly clustered around the mean with a rather small variance, making it difficult to define a clinical cutoff for clinical practice. Future studies are warranted to assess ABSI's potential usefulness as an anthropometric measure in population level health surveillance. PMID- 29349877 TI - Engineered and Laser-Processed Chitosan Biopolymers for Sustainable and Biodegradable Triboelectric Power Generation. AB - Recent advances achieved in triboelectric nanogenerators (TENG) focus on boosting power generation and conversion efficiency. Nevertheless, obstacles concerning economical and biocompatible utilization of TENGs continue to prevail. Being an abundant natural biopolymer from marine crustacean shells, chitosan enables exciting opportunities for low-cost, biodegradable TENG applications in related fields. Here, the development of biodegradable and flexible TENGs based on chitosan is presented for the first time. The physical and chemical properties of the chitosan nanocomposites are systematically studied and engineered for optimized triboelectric power generation, transforming the otherwise wasted natural materials into functional energy devices. The feasibility of laser processing of constituent materials is further explored for the first time for engineering the TENG performance. The laser treatment of biopolymer films offers a potentially promising scheme for surface engineering in polymer-based TENGs. The chitosan-based TENGs present efficient energy conversion performance and tunable biodegradation rate. Such a new class of TENGs derived from natural biomaterials may pave the way toward the economically viable and ecologically friendly production of flexible TENGs for self-powered nanosystems in biomedical and environmental applications. PMID- 29349878 TI - Efficacy of grape seed extract gel in the treatment of chronic periodontitis: A randomized clinical study. AB - AIM: The aim of the present study was to assess the effectiveness of applying grape seed extract (GSE) gel in periodontal pockets for the treatment of chronic periodontitis. METHODS: Eighty-six sites with pocket depth (PD) >4 mm were selected from five systemically-healthy patients in whom scaling, and root planing were performed, and oral instructions were given, a week earlier. PD, gingival index (GI), plaque index (PI), and bleeding on probing (BOP) were measured, and sites were then divided into the control group (N = 38) and GSE group (N = 48). Four doses of formulated 2% mucoadhesive GSE gel were applied to GSE group sites at baseline visit (T0), and 3, 6, and 9 days after T0. Similarly, a control gel was applied to the control sites. PD, PI, GI and BOP were re evaluated after 4 weeks and 6 months of first gel application. RESULTS: Paired t test for both the control and GSE groups showed a significant reduction for all variables after 6 months of gel application (P < .05). The independent t test showed a significant difference (P < .05) only in the reduction of gingival index (mean: 0.85 +/- 0.77 for control and 1.3 +/- 0.8 for GSE) and plaque index (mean: 0.75 +/- 0.71 for control and 1.12 +/- 0.7 for GSE). CONCLUSION: The subgingival application of the formulated 2% mucoadhesive GSE gel showed significant improvement in the PI and GI only. PMID- 29349879 TI - A novel PKLR gene mutation identified using advanced molecular techniques. AB - This study's purposes were to diagnose intractable hemolytic anemia and to provide guiding treatment for the affected family members. We performed NGS in a panel of 600 genes for blood diseases on a patient with obscure hemolytic anemia and her parents. We confirmed the diagnosis of pyruvate kinase deficiency, identified a novel homozygous mutation of the PKLR gene (NM_000298: exon 6: c.T941C: p.I314T), and ruled out other blood diseases in the Chinese family. Furthermore, amniotic fluid was taken from the mother during the second trimester, and DNA was extracted to analyze the type of PKLR gene mutation. The proband received cord blood and bone marrow from the second child of the mother for hematopoietic stem cell transplantation and achieved normal hematopoiesis. The genetic characterization analysis and genotype-phenotype correlation study of PKLR gene suggested that NGS was an effective method to confirm the molecular diagnosis of intractable hemolytic anemia. The identification of the mutation aided in prenatal diagnosis in the second pregnancy and the effective clinical management of the affected family. PMID- 29349880 TI - Beyond the realist turn: a socio-material analysis of heart failure self-care. AB - For patients living with chronic illnesses, self-care has been linked with positive outcomes such as decreased hospitalisation, longer lifespan, and improved quality of life. However, despite calls for more and better self-care interventions, behaviour change trials have repeatedly fallen short on demonstrating effectiveness. The literature on heart failure (HF) stands as a case in point, and a growing body of HF studies advocate realist approaches to self-care research and policymaking. We label this trend the 'realist turn' in HF self-care. Realist evaluation and realist interventions emphasise that the relationship between self-care interventions and positive health outcomes is not fixed, but contingent on social context. This paper argues socio-materiality offers a productive framework to expand on the idea of social context in realist accounts of HF self-care. This study draws on 10 interviews as well as researcher reflections from a larger study exploring health care teams for patients with advanced HF. Leveraging insights from actor-network theory (ANT), this study provides two rich narratives about the contextual factors that influence HF self care. These descriptions portray not self-care contexts but self-care assemblages, which we discuss in light of socio-materiality. PMID- 29349881 TI - Speech and language therapists' perspectives of therapeutic alliance construction and maintenance in aphasia rehabilitation post-stroke. AB - BACKGROUND: Therapeutic alliance refers to the interactional and relational processes operating during therapeutic interventions. It has been shown to be a strong determinant of treatment efficacy in psychotherapy, and evidence is emerging from a range of healthcare and medical disciplines to suggest that the construct of therapeutic alliance may in fact be a variable component of treatment outcome, engagement and satisfaction. Although this construct appears to be highly relevant to aphasia rehabilitation, no research to date has attempted to explore this phenomenon and thus consider its potential utility as a mechanism for change. AIMS: To explore speech and language therapists' perceptions and experiences of developing and maintaining therapeutic alliances in aphasia rehabilitation post-stroke. METHODS & PROCEDURES: Twenty-two, in depth, semi-structured interviews were conducted with speech and language therapists working with people with aphasia post-stroke. Qualitative data were analysed using inductive thematic analysis. OUTCOMES & RESULTS: Analysis resulted in the emergence of three overarching themes: laying the groundwork; augmenting cohesion; and contextual shapers. Recognizing personhood, developing shared expectations of therapy and establishing therapeutic ownership were central to laying the groundwork for therapeutic delivery. Augmenting cohesion was perceived to be dependent on the therapists' responsiveness and ability to resolve both conflict and resistance, as part of an ongoing active process. These processes were further moulded by contextual shapers such as the patient's family, relational continuity and organizational drivers. CONCLUSIONS & IMPLICATIONS: The findings suggest that therapists used multiple, complex, relational strategies to establish and manage alliances with people with aphasia, which were reliant on a fluid interplay of verbal and non-verbal skills. The data highlight the need for further training to support therapists to forge purposive alliances. Training should develop: therapeutic reflexivity; inclusivity in goal setting, relational strategies; and motivational enhancement techniques. The conceptualization of therapeutic alliance, however, is only provisional. Further research is essential to elucidate the experiences and perceptions of alliance development for people with aphasia undergoing rehabilitation. PMID- 29349882 TI - Short communication: Persistent socio-economic inequality in frequent headache among Danish adolescents from 1991 to 2014. AB - BACKGROUND: The association between socio-economic status (SES) and headache among adolescents is an understudied issue, and no study has examined whether such an association changes over time. The aim was to examine trends in socio economic inequality in frequent headache among 11- to 15-year-olds in Denmark from 1991 to 2014, using occupational social class (OSC) as indicator of SES. METHODS: The study applies data from the Danish part of the international Health Behaviour in School-aged Children (HBSC) study. HBSC includes nationally representative samples of 11-, 13- and 15-year-olds. This study combines data from seven data survey years from 1991 to 2014, participation rate 88.6%, n = 31,102. We report absolute inequality as per cent difference in frequent headache between high and low OSC and relative inequality as odds ratio for frequent headache by OSC. RESULTS: In the entire study population, 10.4% reported frequent headache. There was a significant increase in frequent headache from 8.0% in 1991 to 12.9% in 2014, test for trend, p < 0.0001. This increasing trend was significant in all OSCs. The prevalence of frequent headache was significantly higher in low than high OSC, OR = 1.50 (95% CI: 1.34-1.67). This socio-economic inequality in frequent headache was persistent from 1991 to 2014. CONCLUSION: There was a significant and persistent socio-economic inequality, i.e. increasing prevalence of frequent headache with decreasing OSC. The association between socio-economic position and headache did not significantly change over time, i.e. the statistical interaction between OSC and survey year was insignificant. SIGNIFICANCE: The prevalence of frequent headache among adolescents increases with decreasing SES. This socio-economic inequality has been persistent among adolescents in Denmark from 1991 to 2014. Clinicians should be aware of this social inequality. PMID- 29349883 TI - Cellular cannibalism and lichen planus malignancy: A suggestive hypothesis. PMID- 29349884 TI - Report of a human autopsy case in maxillary sinuses augmented using a synthetic bone substitute: Micro-computed tomographic and histologic observations. AB - OBJECTIVE: This study of a human autopsy case aimed to characterize the histologic and micro-computed tomographic results of maxillary sinus augmentation using a synthetic bone substitute and simultaneous implant placement at 6 years. MATERIAL AND METHODS: This report is based on the whole-body donation of a 62 year-old male patient who died due to bladder cancer. Implants had been placed in conjunction with sinus augmentation using a mixture of biphasic calcium phosphate and autogenous bone into both maxillary sinuses 6 years prior to the body donation. The maxillary sinus areas containing implants were gently removed from the cadaver and scanned using high-resolution micro-computed tomography. Samples were sectioned, prepared for undecalcified histologic slides and stained with haematoxylin-eosin. RESULTS: The augmented volume was observed up to the apex of the implants, which were successfully osseointegrated. Cross-sectional micro computed tomographic views revealed that the bone-substitute particles were embedded in radiopaque-mineralized tissues showing a trabecular pattern around the implants. The histologic analysis revealed mature lamellar bone surrounding the remaining bone-substitute particles as well as well-organized bone marrow spaces in the augment bone area and around the dental implants. CONCLUSION: This human autopsy study histologically confirmed the presence of successful bone formation and long-term volume stability after sinus augmentation using biphasic calcium phosphate and simultaneous implant placement. PMID- 29349885 TI - A Hierarchical Z-Scheme alpha-Fe2 O3 /g-C3 N4 Hybrid for Enhanced Photocatalytic CO2 Reduction. AB - The challenge in the artificial photosynthesis of fossil resources from CO2 by utilizing solar energy is to achieve stable photocatalysts with effective CO2 adsorption capacity and high charge-separation efficiency. A hierarchical direct Z-scheme system consisting of urchin-like hematite and carbon nitride provides an enhanced photocatalytic activity of reduction of CO2 to CO, yielding a CO evolution rate of 27.2 umol g-1 h-1 without cocatalyst and sacrifice reagent, which is >2.2 times higher than that produced by g-C3 N4 alone (10.3 umol g-1 h-1 ). The enhanced photocatalytic activity of the Z-scheme hybrid material can be ascribed to its unique characteristics to accelerate the reduction process, including: (i) 3D hierarchical structure of urchin-like hematite and preferable basic sites which promotes the CO2 adsorption, and (ii) the unique Z-scheme feature efficiently promotes the separation of the electron-hole pairs and enhances the reducibility of electrons in the conduction band of the g-C3 N4 . The origin of such an obvious advantage of the hierarchical Z-scheme is not only explained based on the experimental data but also investigated by modeling CO2 adsorption and CO adsorption on the three different atomic-scale surfaces via density functional theory calculation. The study creates new opportunities for hierarchical hematite and other metal-oxide-based Z-scheme system for solar fuel generation. PMID- 29349886 TI - Adaptation of Salmonella enterica to bile: essential role of AcrAB-mediated efflux. AB - Adaptation to bile is the ability to endure the lethal effects of bile salts after growth on sublethal concentrations. Surveys of adaptation to bile in Salmonella enterica ser. Tyhimurium reveal that active efflux is essential for adaptation while other bacterial functions involved in bile resistance are not. Among S. enterica mutants lacking one or more efflux systems, only strains lacking AcrAB are unable to adapt, thus revealing an essential role for AcrAB. Transcription of the acrAB operon is upregulated in the presence of a sublethal concentration of sodium deoxycholate (DOC) while other efflux loci are either weakly upregulated or irresponsive. Upregulation of acrAB transcription is strong during exponential growth, and weak in stationary cultures. Single cell analysis of ethidium bromide accumulation indicates that DOC-induced AcrAB-mediated efflux occurs in both exponential and stationary cultures. Upregulation of acrAB expression may thus be crucial at early stages of adaptation, while sustained AcrAB activity may be sufficient to confer bile resistance in nondividing cells. PMID- 29349887 TI - Realizing zT of 2.3 in Ge1-x-y Sbx Iny Te via Reducing the Phase-Transition Temperature and Introducing Resonant Energy Doping. AB - GeTe with rhombohedral-to-cubic phase transition is a promising lead-free thermoelectric candidate. Herein, theoretical studies reveal that cubic GeTe has superior thermoelectric behavior, which is linked to (1) the two valence bands to enhance the electronic transport coefficients and (2) stronger enharmonic phonon phonon interactions to ensure a lower intrinsic thermal conductivity. Experimentally, based on Ge1-x Sbx Te with optimized carrier concentration, a record-high figure-of-merit of 2.3 is achieved via further doping with In, which induces the distortion of the density of states near the Fermi level. Moreover, Sb and In codoping reduces the phase-transition temperature to extend the better thermoelectric behavior of cubic GeTe to low temperature. Additionally, electronic microscopy characterization demonstrates grain boundaries, a high density of stacking faults, and nanoscale precipitates, which together with the inevitable point defects result in a dramatically decreased thermal conductivity. The fundamental investigation and experimental demonstration provide an important direction for the development of high-performance Pb-free thermoelectric materials. PMID- 29349888 TI - Distal amyloid beta-protein fragments template amyloid assembly. AB - Amyloid formation is associated with devastating diseases such as Alzheimer's, Parkinson's and Type-2 diabetes. The large amyloid deposits found in patients suffering from these diseases have remained difficult to probe by structural means. Recent NMR models also predict heterotypic interactions from distinct peptide fragments but limited evidence of heterotypic packed sheets is observed in solution. Here we characterize two segments of the protein amyloid beta (Abeta) known to form fibrils in Alzheimer's disease patients. We designed two variants of Abeta(19-24) and Abeta(27-32), IFAEDV (I6V) and NKGAIF (N6F) to lower the aggregation propensity of individual peptides while maintaining the similar interactions between the two segments in their native forms. We found that the variants do not form significant amyloid fibrils individually but a 1:1 mixture forms abundant fibrils. Using ion mobility-mass spectrometry (IM-MS), hetero oligomers up to decamers were found in the mixture while the individual peptides formed primarily dimers and some tetramers consistent with a strong heterotypic interaction between the two segments. We showed by X-ray crystallography that I6V formed a Class 7 zipper with a weakly packed pair of beta-sheets and no segregated dry interface, while N6F formed a more stable Class 1 zipper. In a mixture of equimolar N6F:I6V, I6V forms a more stable zipper than in I6V alone while no N6F or hetero-typic zippers are observed. These data are consistent with a mechanism where N6F catalyzes assembly of I6V into a stable zipper and perhaps into stable, pure I6V fibrils that are observed in AFM measurements. PMID- 29349890 TI - Case report: Cytochrome P450 implications for comorbid ADHD and OCD pharmacotherapy. AB - TOPIC: This case report details the treatment of an early adolescent already receiving treatment for attention-deficit hyperactivity disorder who presents with recurrent obsessive-compulsive disorder. Potential atomoxetine (Strattera) and fluoxetine (Prozac) interactions via Cytochrome P450 (CYP450) pathways are examined and alternate therapies are recommended. PURPOSE: Provide a discussion of psychopharmacogenomics, especially in the case of combining medications, CYP450 enzymes, and clinical implications in the context of the burgeoning field of precision medicine. The following questions are addressed: 1) What are the recommendations for pharmacogenetics testing? 2) How should pharmacogenetics inform medication selection? 3) What impact should CYP450 knowledge have on medication dosing? SOURCES: Peer-reviewed journals, U.S. Health and Human Services, National Institutes of Health, National Medical Library, and the Clinical Pharmacology database. CONCLUSIONS: Genetic testing as a prescriptive tool is not indicated for all medications; however, potential drug-drug interactions, narrow therapeutic drug index, and side effect toxicity contribute to the need for testing. An understanding of CYP450 metabolism and drug interaction as well as metabolism phenotypes should inform prescribing and dosing psychotropic medications. PMID- 29349889 TI - T-cell Immunoglobulin and ITIM Domain Contributes to CD8+ T-cell Immunosenescence. AB - Aging is associated with immune dysfunction, especially T-cell defects, which result in increased susceptibility to various diseases. Previous studies showed that T cells from aged mice express multiple inhibitory receptors, providing evidence of the relationship between T-cell exhaustion and T-cell senescence. In this study, we showed that T-cell immunoglobulin and immunoreceptor tyrosine based inhibitory motif (ITIM) domain (TIGIT), a novel co-inhibitory receptor, was upregulated in CD8+ T cells of elderly adults. Aged TIGIT+ CD8+ T cells expressed high levels of other inhibitory receptors including PD-1 and exhibited features of exhaustion such as downregulation of the key costimulatory receptor CD28, representative intrinsic transcriptional regulation, low production of cytokines, and high susceptibility to apoptosis. Importantly, their functional defects associated with aging were reversed by TIGIT knockdown. CD226 downregulation on aged TIGIT+ CD8+ T cells is likely involved in TIGIT-mediated negative immune suppression. Collectively, our findings indicated that TIGIT acts as a critical immune regulator during aging, providing a strong rationale for targeting TIGIT to improve dysfunction related to immune system aging. PMID- 29349891 TI - Research on the preparation, uniformity and stability of mixed standard substance for rapid detection of goat milk composition. AB - Taking fresh goat milk as raw material after filtering, centrifuging, hollow fiber ultrafiltration, allocating formula, value detection and preparation processing, a set of 10 goat milk mixed standard substances was prepared on the basis of one-factor-at-a-time using a uniform design method, and its accuracy, uniformity and stability were evaluated by paired t-test and F-test of one-way analysis of variance. The results showed that three milk composition contents of these standard products were independent of each other, and the preparation using the quasi-level design method, and without emulsifier was the best program. Compared with detection value by cow milk standards for calibration fast analyzer, the calibration by goat milk mixed standard was more applicable to rapid detection of goat milk composition, detection value was more accurate and the deviation showed less error. Single factor analysis of variance showed that the uniformity and stability of the mixed standard substance were better; it could be stored for 15 days at 4 degrees C. The uniformity and stability of the in-units and inter-units could meet the requirements of the preparation of national standard products. PMID- 29349892 TI - 'Can the patient speak?': postcolonialism and patient involvement in undergraduate and postgraduate medical education. AB - CONTEXT: Patients are increasingly being engaged in providing feedback and consultation to health care institutions, and in the training of health care professionals. Such involvement has the potential to disrupt traditional doctor patient power dynamics in significant ways that have not been theorised in the medical literature. Critical theories can help us understand how power flows when patients are engaged in the training of medical students. METHODS: This paper applies postcolonial theory to the involvement of patients in the development and delivery of medical education. First, I review and summarise the literature around patient involvement in medical education. Subsequently, I highlight how postcolonial frameworks have been applied to medical education more broadly, extrapolating from the literature to apply a postcolonial lens to the area of patient engagement in medical education. CONCLUSION: Concepts from postcolonial theory can help medical educators think differently about how patients can be engaged in the medical education project in ways that are meaningful and non tokenistic. Specifically, the positioning of the patient as 'subaltern' can provide channels of resistance against traditional power asymmetries. This has curricular and methodological implications for medical education research in the area of patient engagement. PMID- 29349893 TI - Is overweight/obesity a risk factor for periodontitis in young adults and adolescents?: a systematic review. AB - BACKGROUND: Obesity in young adults and adolescents is associated with chronic co morbidities. This project investigated whether being overweight or obese is a risk factor for periodontitis in adolescents (13-17 years) and young adults (18 34 years). METHODS: A search of 12 databases was conducted using Medical Subject Headings/Index and Emtree terms. Based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses, articles published between 2003 and 2016 were screened that reported periodontal and anthropometric measures. The Newcastle-Ottawa Scale was used to appraise the quality of studies. RESULTS: Of 25 eligible studies from 12 countries, 17 showed an association between obesity and periodontitis (odds ratios ranged from 1.1 to 4.5). The obesity indicators of body mass index, waist circumference, waist-hip ratio and body fat percentage were significantly associated with measures of periodontitis of bleeding on probing, plaque index, probing depths, clinical attachment loss, calculus, oral hygiene index and community periodontal index. Two prospective cohort studies in the review showed no significant association between obesity and periodontitis, but these studies had limitations of study design and used inappropriate epidemiological diagnostic measures of periodontitis. CONCLUSION: There was evidence to suggest that obesity is associated with periodontitis in adolescents and young adults. Systematic Review Registration: PROSPERO Registration Number: CRD42016046507. PMID- 29349894 TI - Assessment of the potential of temporin peptides from the frog Rana temporaria (Ranidae) as anti-diabetic agents. AB - Temporin A (FLPLIGRVLSGIL-NH2 ), temporin F (FLPLIGKVLSGIL-NH2 ), and temporin G (FFPVIGRILNGIL-NH2 ), first identified in skin secretions of the frog Rana temporaria, produced concentration-dependent stimulation of insulin release from BRIN-BD11 rat clonal beta-cells at concentrations >=1 nM, without cytotoxicity at concentrations up to 3 MUM. Temporin A was the most effective. The mechanism of insulinotropic action did not involve an increase in intracellular Ca2+ concentrations. Temporins B, C, E, H, and K were either inactive or only weakly active. Temporins A, F, and G also produced a concentration-dependent stimulation of insulin release from 1.1B4 human-derived pancreatic beta-cells, with temporin G being the most potent and effective, and from isolated mouse islets. The data indicate that cationicity, hydrophobicity, and the angle subtended by the charged residues in the temporin molecule are important determinants for in vitro insulinotropic activity. Temporin A and F (1 MUM), but not temporin G, protected BRIN-BD11 cells against cytokine-induced apoptosis (P < 0.001) and augmented (P < 0.001) proliferation of the cells to a similar extent as glucagon-like peptide-1. Intraperitoneal injection of temporin G (75 nmol/kg body weight) together with a glucose load (18 mmol/kg body weight) in C57BL6 mice improved glucose tolerance with a concomitant increase in insulin secretion whereas temporin A and F administration was without significant effect on plasma glucose levels. The study suggests that combination therapy involving agents developed from the temporin A and G sequences may find application in Type 2 diabetes treatment. PMID- 29349895 TI - Men's views and experiences of infant feeding: A qualitative systematic review. AB - Although the advantages of breastfeeding are well documented, rates for breastfeeding often fall short of international and national targets. Increasing attention has been paid to the role of men in infant feeding, but a lot of the research about men has been elicited from women, rather than from men themselves. To explore these issues further, a systematic review of the qualitative research on infant feeding was carried out, focusing specifically on men's own views and experiences. Evidence was identified by searching electronic databases (CINAL, Cochrane, PubMed, and Scopus), manually searching citations, and by searching the grey literature. Studies were included in the review if they discussed men's views and experiences of infant feeding and if they reported primary qualitative data. Twenty research papers were included in the review, and each study was summarised and then analysed thematically to produce a synthesis. Five major analytical themes were identified: men's knowledge of infant feeding; men's perceptions of their role in infant feeding; positive views on breastfeeding; negative views on breastfeeding; and men's experiences of health promotion and support. The review concludes by highlighting that although men can play an important role in supporting women, they do not have a significant role in infant feeding decisions. PMID- 29349896 TI - Treatment with low doses of aspirin during chronic phase of experimental Chagas' disease increases oesophageal nitrergic neuronal subpopulation in mice. AB - Patients with Chagas' disease may develop dysfunctions of oesophageal and colonic motility resulting from the degeneration or loss of the myenteric neurons of the enteric nervous system. Studies have shown that the use of aspirin, also known as acetylsalicylic acid (ASA), influences the pathogenesis of the disease. However, this remains controversial. The aim of this study was to evaluate the consequences of treatment with low doses of aspirin during the chronic phase of Chagas' disease on oesophageal function. Twenty male Swiss mice, 60 days of age, were used. The animals were infected with Y strain of Trypanosoma cruzi, injected intraperitoneally. Aspirin was given at a dose of 50 mg/kg to some of the infected animals, from the 55th to 63rd day after inoculation on consecutive days, and from the 65th to 75th day on alternate days. We investigated food passage of time, wall structure and nitrergic neuronal population of the distal oesophagus. Our data revealed that the use of low doses of aspirin in chronic Chagas' disease caused an increase in the number of nitrergic neurons and partially prevented hypertrophy of the oesophagus. In addition, the aspirin administration impeded Chagas' diseases associated changes in intestinal transit time. Thus treatment with aspirin in the chronic phase of Chagas' disease changes the natural history of the disease and raises the possibility of using it as a new therapeutic approach to the treatment of this aspect of Chagas' disease pathology. PMID- 29349897 TI - Antibiogram and genetic diversity of Salmonella enterica with zoonotic potential isolated from morbid native chickens and pigeons in Egypt. AB - AIMS: This study investigated the possible role of Fayoumi chickens and pigeons in the transmission of multidrug resistant (MDR) Salmonella with zoonotic potential. METHODS AND RESULTS: Morbid Fayoumi chickens (70) and pigeons (30) were examined to detect the prevalence and antibiotic resistance of Salmonella and to detect and sequence sodC-1 gene as a zoonotic and phylogenetic marker. Salmonella isolates were detected in 14.3 and 20% of the examined Fayoumi chickens and pigeons, respectively. Salomonella subspecies salamae (43.8%) and S. subspecies enterica serovar Bukuru (31.3%) were the most prevalent isolates. All tested Salmonella isolates were MDR to at least five classes of antibiotics. S. salamae and S. Bukuru isolates that carried blaTEM , qnrS, aadA2 and floR genes expressed phenotypic resistance to cefotaxime, ciprofloxacin, streptomycin and chloramphenicol, respectively. The aacC gene was detected in one of each S. salamae and S. Bukuru isolate, although only the S. Bukuru isolate showed phenotypic resistance to gentamicin. The sequence analysis of the sodC-1 gene from Salmonella isolates showed clear inter- and intra-subspecies phylogenetic segregation. CONCLUSIONS: Fayoumi chickens and pigeons could act as reservoirs of MDR Salmonella. SIGNIFICANCE AND IMPACT OF THE STUDY: This study highlights the possible emergence of Salmonella subspecies salamae with zoonotic potential. PMID- 29349899 TI - Collaborative child home injury prevention in Thailand: An action research study. AB - Child home accidental injury is a global health issue, and promoting child safety is a pediatric nursing challenge worldwide. Planning child home accidental injury prevention requires understanding of factors influencing parents' behavior. Evidence suggests that participatory health promotion positively influences behavior; however, research on Thai parents is limited. This qualitative, action research study aimed to understand Thai parents' experiences of participating in a collaborative child home accidental injury prevention program and its influence on their behavior. Eight parental mother/father couples from one Thai province consented to participate, providing a wide range of data via in-depth individual interviews and self-assessment questionnaires. Thematic analysis of interview transcripts yielded three themes: collaborative learning, parental behavior change, and reflective learning extends beyond families. Participants reported that workshop participation improved their child home accidental injury prevention behavior. The present study can inform pediatric nursing, child health care practice, and child health policy in Thailand and beyond. PMID- 29349898 TI - Helenalin Analogues Targeting NF-kappaB p65: Thiol Reactivity and Cellular Potency Studies of Varied Electrophiles. AB - Helenalin is a pseudoguaianolide natural product that targets Cys38 within the DNA binding domain of NF-kappaB transcription factor p65 (RelA). Helenalin contains two Michael acceptors that covalently modify cysteines: a alpha methylene-gamma-butyrolactone and a cyclopentenone. We recently reported two simplified helenalin analogues that mimic the biological activity of helenalin and contain both electrophilic moieties. To determine the individual contributions of the Michael acceptors toward NF-kappaB inhibition, we synthesized a small library of helenalin-based analogues containing various combinations of alpha-methylene-gamma-butyrolactones and cyclopentenones. The kinetics of thiol addition to a subset of the analogues was measured to determine the relative thiol reactivities of the embedded electrophiles. Additionally, the cellular NF-kappaB inhibitory activities of the analogues were determined to elucidate the contributions of each Michael acceptor to biological potency. Our studies suggest the alpha-methylene-gamma-butyrolactone contributes most significantly to the NF-kappaB inhibition of our simplified helenalin analogues. PMID- 29349900 TI - Primary cardiac angiosarcoma: A case report. AB - Cardiac angiosarcomas are the most common primary malignant cardiac tumors in adults. The diagnosis is often delayed due to nonspecific clinical symptoms at presentation. The cornerstones of diagnosis are echocardiography and the histological evaluation of the cardiac biopsy. The knowledge on the treatment is limited; the outcomes of chemotherapy, radiotherapy, complete surgical removal, and heart transplantation are controversial. We report a 38-year-old woman with a primary heart tumor which infiltrated the right atrial wall and the pericardium and caused pericardial effusion. Angiosarcoma was verified histologically. The surgical excision could not be radical, and the patient died 3 months from diagnosis. PMID- 29349901 TI - Inflammatory back pain and associated disease conditions among patients with chronic low back pain in Bangladesh. AB - AIM: Inflammatory back pain (IBP) is the earliest symptom of axial and other forms of spondyloarthritis (SpA). However, there are no published data on prevalence of IBP among patients suffering from chronic low back pain (CLBP) in Bangladesh. In this study, we estimated the prevalence of IBP and the subtypes of SpA in a tertiary hospital in Bangladesh. METHODS: This 1 year cross-sectional study was conducted among 240 CLBP patients in a rheumatology outpatient clinic. Assessment of Spondyloarthritis International Society classification criteria of IBP and predefined recognized classification criteria were followed to define different subtypes of SpA. Means and standard deviations were reported for continuous variables. Descriptive and bi-variate analyses were accordingly performed. RESULTS: Of 240 CLBP patients, 60 (25%) had IBP and 180 (75%) had mechanical back pain (MBP). Among the 60 IBP patients, 52 (86.6%) had predominantly axial SpA (axSpA) and eight (13.4%) had predominantly peripheral spondyloarthritis. In the axSpA group, 49 (94.2%) had radiographic axSpA (rd axSpA) also known as AS and three (5.8%) had non-radiographic axSpA (nr-axspA). AxSpA patients could be divided into eight (15.35%) with psoriasis, two (3.8%) with reactive arthritis and one patient (1.9%) had arthritis associated with inflammatory bowel disease. Fifty (83.3%) IBP and 73 (40.6%) MBP patients had age at onset of back pain < 40 years. Forty-two (70%) of the IBP and 100 (55.6%) of the MBP patients had normal body mass index. All these differences were statistically significant (P <= 0.0001). CONCLUSIONS: Inflammatory back pain is common among patients presenting with CLBP. The commonest cause of IBP is AS, followed by PsA and nr-axSpA. PMID- 29349902 TI - Association between pre-sarcopenia, sarcopenia, and bone mineral density in patients with chronic hepatitis C. AB - BACKGROUND: Preserved skeletal muscle is essential for the maintenance of healthy bone. Loss of bone mineral density (BMD) and muscle strength, considered a predictor of BMD, have been demonstrated in patients with cirrhosis, but they are poorly studied in chronic hepatitis C (CHC) without cirrhosis. Thus, we aimed to evaluate the prevalence of low BMD and its association with body composition, muscle strength, and nutritional status in CHC. METHODS: One hundred and four subjects [mean age, 50.5 +/- 11.3 years; 75.0% males; 67.3% non-cirrhotic; and 32.7% with compensated cirrhosis] with CHC, prospectively, underwent scanning of the lean tissue, appendicular skeletal muscle mass (ASM), fat mass, lumbar spine, hip, femoral neck, and whole-body BMD by dual-energy X-ray absorptiometry. Muscle strength was assessed by dynamometry. Sarcopenia was defined by the presence of both low, ASM/height2 (ASMI) and low muscle strength according to the European Working Group on Sarcopenia in Older People criteria. The cut-off points for low ASMI and low muscle strength, for women and men, were < 5.45 and < 7.26 kg/m2 and < 20 and < 30 kg, respectively. According to the adopted World Health Organization criteria in men aged > 50 years, the T-score of osteopenia is between -1.0 and -2.49 standard deviation (SD) below the young average value and of osteoporosis is >=-2.5 SD below the young normal mean for men, and the Z-score of low bone mass is <=-2.0 SD below the expected range in men aged < 50 years and women in the menacme. Nutritional status evaluation was based on the Controlling Nutritional Status score. RESULTS: Low BMD, low muscle strength, pre-sarcopenia, sarcopenia, and sarcopenic obesity were observed in 34.6% (36/104), 27.9% (29/104), 14.4% (15/104), 8.7% (9/104), and 3.8% (4/104) of the patients, respectively. ASMI was an independent predictor of BMD (P < 0.001). Sarcopenia was independently associated with bone mineral content (P = 0.02) and malnutrition (P = 0.01). In 88.9% of the sarcopenic patients and in all with sarcopenic obesity, BMI was normal. The mid-arm muscle circumference was positively correlated with ASMI (r = 0.88; P < 0.001). CONCLUSIONS: This is the first study to demonstrate that ASM is an independent predictor of BMD in CHC. Mid-arm muscle circumference coupled with handgrip strength testing should be incorporated into routine clinical practice to detect low muscle mass, which may be underdiagnosed when only BMI is used. These findings may influence clinical decision-making and contribute to the development of effective strategies to screen the musculoskeletal abnormalities in CHC patients, independently of the stage of the liver disease. PMID- 29349904 TI - Lysosome remodelling and adaptation during phagocyte activation. AB - Lysosomes are acidic and hydrolytic organelles responsible for receiving and digesting cargo acquired during endocytosis, phagocytosis, and autophagy. For macrophages and dendritic cells, the lysosome is kingpin, playing a direct role in microbe killing and antigen processing for presentation. Strikingly, the historic view that lysosomes are homogeneous and static organelles is being replaced with a more elegant paradigm, in which lysosomes are heterogeneous, dynamic, and respond to cellular needs. For example, lysosomes are signalling platforms that integrate stress detection and molecular decision hubs such as the mTOR complex 1 and AMPK to modulate cellular activity. These signals can even adjust lysosome activity by modulating transcription factors such as transcription factor EB (TFEB) and TFE3 that govern lysosome gene expression. Here, we review lysosome remodelling and adaptation during macrophage and dendritic cell stimulation. First, we assess the functional outcomes and regulatory mechanisms driving the dramatic restructuring of lysosomes from globular organelles into a tubular network during phagocyte activation. Second, we discuss lysosome adaptation and scaling in macrophages driven by TFEB and TFE3 stimulation in response to phagocytosis and microbe challenges. Collectively, we are beginning to appreciate that lysosomes are dynamic and adapt to serve phagocyte differentiation in response to microbes and immune stress. PMID- 29349903 TI - GP73 promotes invasion and metastasis of bladder cancer by regulating the epithelial-mesenchymal transition through the TGF-beta1/Smad2 signalling pathway. AB - This study investigated the effects of Golgi membrane protein 73 (GP73) on the epithelial-mesenchymal transition (EMT) and on bladder cancer cell invasion and metastasis through the TGF-beta1/Smad2 signalling pathway. Paired bladder cancer and adjacent tissue samples (102) and normal bladder tissue samples (106) were obtained. Bladder cancer cell lines (T24, 5637, RT4, 253J and J82) were selected and assigned to blank, negative control (NC), TGF-beta, thrombospondin-1 (TSP-1), TGF-beta1+ TSP-1, GP73-siRNA-1, GP73-siRNA-2, GP73-siRNA-1+ TSP-1, GP73-siRNA-1+ pcDNA-GP73, WT1-siRNA and WT1-siRNA + GP73-siRNA-1 groups. Expressions of GP73, TGF-beta1, Smad2, p-Smad2, E-cadherin and vimentin were detected using RT-qPCR and Western blotting. Cell proliferation, migration and invasion were determined using MTT assay, scratch testing and Transwell assay, respectively. Compared with the blank and NC groups, levels of GP73, TGF-beta1, Smad2, p-Smad2, N-cadherin and vimentin decreased, and levels of WT1 and E-cadherin increased in the GP73 siRNA-1 and GP73-siRNA-2 groups, while the opposite results were observed in the WT1 siRNA, TGF-beta, TSP-1 and TGF-beta + TSP-1 groups. Cell proliferation, migration and invasion notably decreased in the GP73-siRNA-1 and GP73-siRNA-2 groups in comparison with the blank and NC groups, while in the WT1 siRNA, TGF beta, TSP-1 and TGF-beta + TSP-1 groups, cell migration, invasion and proliferation showed the reduction after the EMT. These results suggest that GP73 promotes bladder cancer invasion and metastasis by inducing the EMT through down regulating WT1 levels and activating the TGF-beta1/Smad2 signalling pathway. PMID- 29349906 TI - Pregnancy greatly affects the steroidal module of the Athlete Biological Passport. AB - Concentrations of urinary steroids are measured in anti-doping test programs to detect doping with endogenous steroids. These concentrations are combined into ratios and followed over time in the steroidal module of the Athlete Biological Passport (ABP). The most important ratio in the ABP is the testosterone/epitestosterone (T/E) ratio but this ratio is subject to intra individual variations, especially large in women, which complicates interpretation. In addition, there are other factors affecting T/E. Pregnancy, for example, is known to affect the urinary excretion rate of epitestosterone and hence the T/E ratio. However, the extent of this variation and how pregnancy affect other ratios has not been fully evaluated. Here we have studied the urinary steroid profile, including 19-norandrosterone (19-NA), in 67 pregnant women and compared to postpartum. Epitestosterone was higher and, consequently, the T/E and 5alphaAdiol/E ratios were lower in the pregnant women. Androsterone/etiocholanolone (A/Etio) and 5alphaAdiol/5betaAdiol, on the other hand, were higher in the first trimester as compared to postpartum (p<0.0001 and p=0.0396, respectively). There was no difference in A/T during pregnancy or after. 19-NA was present in 90.5% of the urine samples collected from pregnant women. In this study, we have shown that the steroid profile of the ABP is affected by pregnancy, and hence can cause atypical passport findings. These atypical findings would lead to unnecessary confirmation procedures, if the patterns of pregnancy are not recognized by the ABP management units. PMID- 29349905 TI - Would you like to add a weight after this blood pressure, doctor? Discovery of potentially actionable associations between the provision of multiple screens in primary care. AB - RATIONALE, AIMS, AND OBJECTIVE: Guidelines recommend screening for risk factors associated with chronic diseases but current electronic prompts have limited effects. Our objective was to discover and rank associations between the presence of screens to plan more efficient prompts in primary care. METHODS: Risk factors with the greatest impact on chronic diseases are associated with blood pressure, body mass index, waist circumference, glycaemic and lipid levels, smoking, alcohol use, diet, and exercise. We looked for associations between the presence of screens for these in electronic medical records. We used association rule mining to describe relationships among items, factor analysis to find latent categories, and Cronbach alpha to quantify consistency within latent categories. RESULTS: Data from 92 140 patients in or around Toronto, Ontario, were included. We found positive correlations (lift >1) between the presence of all screens. The presence of any screen was associated with confidence greater than 80% that other data on items with high prevalence (blood pressure, glycaemic and lipid levels, or smoking) would also be present. A cluster of rules predicting the presence of blood pressure were ranked highest using measures of interestingness such as standardized lift. We found 3 latent categories using factor analysis; these were laboratory tests, vital signs, and lifestyle factors; Cronbach alpha ranged between .58 for lifestyle factors and .88 for laboratory tests. CONCLUSIONS: Associations between the provision of important screens can be discovered and ranked. Rules with promising combinations of associated screens could be used to implement data driven alerts. PMID- 29349907 TI - Accelerated Hydrogen Evolution Kinetics on NiFe-Layered Double Hydroxide Electrocatalysts by Tailoring Water Dissociation Active Sites. AB - Owing to its earth abundance, low kinetic overpotential, and superior stability, NiFe-layered double hydroxide (NiFe-LDH) has emerged as a promising electrocatalyst for catalyzing water splitting, especially oxygen evolution reaction (OER), in alkaline solutions. Unfortunately, as a result of extremely sluggish water dissociation kinetics (Volmer step), hydrogen evolution reaction (HER) activity of the NiFe-LDH is rather poor in alkaline environment. Here a novel strategy is demonstrated for substantially accelerating the hydrogen evolution kinetics of the NiFe-LDH by partially substituting Fe atoms with Ru. In a 1 m KOH solution, the as-synthesized Ru-doped NiFe-LDH nanosheets (NiFeRu-LDH) exhibit excellent HER performance with an overpotential of 29 mV at 10 mA cm-2 , which is much lower than those of noble metal Pt/C and reported electrocatalysts. Both experimental and theoretical results reveal that the introduction of Ru atoms into NiFe-LDH can efficiently reduce energy barrier of the Volmer step, eventually accelerating its HER kinetics. Benefitting from its outstanding HER activity and remained excellent OER activity, the NiFeRu-LDH steadily drives an alkaline electrolyzer with a current density of 10 mA cm-2 at a cell voltage of 1.52 V, which is much lower than the values for Pt/C-Ir/C couple and state-of-the art overall water-splitting electrocatalysts. PMID- 29349908 TI - Robotic-assisted coronary artery bypass surgery: an 18-year single-centre experience. AB - BACKGROUND: Minimally invasive robot-assisted direct coronary artery bypass (RADCAB) has emerged as a feasible minimally invasive surgical technique for revascularization that might offer several potential advantages over conventional approaches. We present our 18-year experience in RADCAB. METHODS: Between February 1998 and February 2016, 605 patients underwent RADCAB. Patients underwent post-procedural selective graft patency assessment using cardiac catheterization. RESULTS: The mortality rate was 0.3%. The rate of conversion to sternotomy for any cause was reduced from 16.0% of the first 200 cases to 6.9% of the last 405 patients. The patency rate of the LITA-to-LAD anastomosis was 97.4%. Surgical re-exploration for bleeding occurred in 1.8% of patients, and the transfusion rate was 9.2%. Average ICU stay was 1.2 +/- 1.4 days, and average hospital stay was 4.8 +/- 2.9 days. CONCLUSIONS: Robot-assisted coronary artery bypass grafting is safe, feasible and it seems to represent an effective alternative to traditional coronary artery bypass grafting in selected patients. PMID- 29349909 TI - A literature review and hypothesis for the etiologies of cervical and root caries. AB - : The presence of endogenous acids from bacteria acting on a suitable substrate combined with sources of exogenous biocorrosives such as exogenous acids and proteolytic enzymes in areas of stress concentration are hypothesized to lead to the development and progression of cervical and root caries (RC). Quantifying the effects of each of the mechanisms (stress and biocorrosion) is a daunting task to investigate since so many factors are involved at various times in the etiology of noncarious cervical lesions (NCCLs), cervical caries (CC), and RC. Frictional action of the tongue has a cleansing effect and lingual serous saliva, which has a high flow rate buffering capacity from bicarbonates seem to account for the paucity of lingual NCCLs, cervical, and RC in these areas of teeth. Future studies are indicated to determine the effects of stress and biocorrosion and their factors in the etiology of CC and RC. CLINICAL SIGNIFICANCE: This manuscript presents hypothetical and literary information that the combined effects of stress concentration and biocorrosion contribute to the formation as well as progression of cervical and root caries. PMID- 29349910 TI - Accuracy of a new elastomeric impression material for complete-arch dental implant impressions. AB - AIM: The aim of the present study was to assess the accuracy of multi-unit dental implant casts obtained from two elastomeric impression materials, vinyl polyether silicone (VPES) and polyether (PE), and to test the effect of splinting of impression copings on the accuracy of implant casts. METHODS: Forty direct impressions of a mandibular reference model fitted with six dental implants and multibase abutments were made using VPES and PE, and implant casts were poured (N = 20). The VPES and PE groups were split into four subgroups of five each, based on splinting type: (a) no splinting; (b) bite registration polyether; (c) bite registration addition silicone; and (d) autopolymerizing acrylic resin. The accuracy of implant-abutment replica positions was calculated on the experimental casts, in terms of interimplant distances in the x, y, and z-axes, using a coordinate measuring machine; values were compared with those measured on the reference model. Data were analyzed using non-parametrical Kruskal-Wallis and Mann-Whitney tests at alpha = .05. RESULTS: The differences between the two impression materials, VPES and PE, regardless of splinting type, were not statistically significant (P>.05). Non-splinting and splinting groups were also not significantly different for both PE and VPES (P>.05). CONCLUSIONS: The accuracy of VPES impression material seemed comparable with PE for multi-implant abutment-level impressions. Splinting had no effect on the accuracy of implant impressions. PMID- 29349911 TI - Identification of fish source Vibrio alginolyticus and evaluation of its bacterial ghosts vaccine immune effects. AB - Vibrio alginolyticus (V. alginolyticus) is a common pathogen for humans and marine aquatic animals. Vibriosis of marine aquatic animals, caused by V. alginolyticus, has become more prevalent globally in recent years. Hence, a safe and effective vaccine is urgently needed for the control of this disease. Here, the strain 16-3 isolated from the large yellow croaker (Larimichthys crocea) suffered from canker was identified as V. alginolyticus based on morphological, biochemical, and 16S rDNA sequencing analysis. Then, recombinant temperature controlled lysis plasmid pBV220-lysisE was electroporated into the strain 16-3 to generate V. alginolyticus bacterial ghosts (VaBGs) by inducing lysis gene E expression, and the safety and immune effects of VaBGs were further investigated in mice and large yellow croaker. The results showed that VaBGs were as safe as formalin-killed V. alginolyticus cells (FKC) to mice and fish. Compared with FKC and PBS groups, significant elevations of the serum agglutinating antibody titer, serum bactericidal activity, lymphocyte proliferative responses, and levels of four different cytokines (Th1 type: IL-2, TNF-alpha; Th2 type: IL-4 and IL-6) in serum were detected in the VaBGs group, indicating that a Th1/Th2-mediated mixed immune response was elicited by the VaBGs. More importantly, after challenged with the parent strain 16-3, VaBGs-vaccinated mice and fish showed higher protection than FKC-vaccinated mice, the relative percent of survival (RPS) being 60%, 66.7% and 40%, respectively. Taken together, this is the first demonstration that the newly constructed V. alginolyticus ghosts may be developed as a safe and effective vaccine against V. alginolyticus infection in aquaculture. PMID- 29349912 TI - Meta-analysis generates and prioritizes hypotheses for translational microbiome research. PMID- 29349913 TI - Eukaryotic phytoplankton community spatiotemporal dynamics as identified through gene expression within a eutrophic estuary. AB - Over the span of a year, we investigated the interactions between biotic and abiotic factors within the eutrophic Neuse River Estuary (NRE). Through metatranscriptomic sequencing in combination with water quality measurements, we show that there are different metabolic strategies deployed along the NRE. In the upper estuary, taxonomically resolved phytoplankton groups express more transcripts of genes for synthesis of cellular components and carbon metabolism whereas in the lower estuary, transcripts allocated to nutrient metabolism and transport were more highly expressed. Metabolisms for polysaccharide synthesis and transportation were elevated in the lower estuary and could be reflective of unbalanced growth and/or interactions with their surrounding microbial consortia. Our results indicate phytoplankton have high metabolic activity, suggestive of increased growth rates in the upper estuary and display patterns reflective of nutrient limitation in the lower estuary. Among all the environmental parameters varying along the NRE, nitrogen availability is found to be the main driving factor for the observed spatial divergence. PMID- 29349914 TI - Dismal science and medicine embrace. PMID- 29349915 TI - Surrogacy legislation remains complex and unsatisfactory. PMID- 29349917 TI - Risk stratification for febrile neutropenia in patients with testicular germ cell tumors. AB - The aim of this study was to detect risk factors for febrile neutropenia (FN) in patients with testicular germ cell tumors (TGCT). In this retrospective cohort study at the Medical University of Graz, we included 413 consecutive TGCT patients who received adjuvant or curative treatment with cisplatin-based chemotherapy. FN occurred in 70 (16.9%) of 413 patients. In univariable logistic regression, higher age (odds ratio (OR) per 5 years = 1.17, 95% CI: 1.02-1.35, P = 0.022), reduced performance status (PS) (OR = 2.73, 1.47-5.06, P = 0.001), seminomatous histology (OR = 2.19, 1.26-3.78, P = 0.005), poor IGCCCG risk class (OR = 4.20, 1.71-10.33, P = 0.002), and prior radiotherapy (pRTX) (OR = 8.98, 2.09-38.61, P = 0.003) were associated with a higher risk of FN. In multivariable analysis adjusting for age and risk classification, only poor PS (OR = 2.06, 1.05 4.03, P = 0.035), seminomatous histology (OR = 2.08, 1.01-4.26, P = 0.047), and pRTX (OR = 7.31, 1.61-33.17, P = 0.010) prevailed. In the subgroup of seminoma patients (n = 104), only pRTX predicted for FN risk (OR = 5.60, 1.24-25.34, P = 0.025). Five of eight seminoma patients with pRTX developed FN (63%), as compared to 22 FN cases (23%) in the 96 seminoma patients without pRTX (P = 0.027). The eight seminoma patients who received pRTX had significantly lower pre-chemo white blood counts (4.7 vs. 6.5 G/L), neutrophil counts (3.2 vs. 4.3 G/L), and platelet counts (185 vs. 272 G/L) than patients without pRTX (all P < 0.0001). TGCT patients with a reduced performance status or who had been previously treated with radiotherapy have an increased risk for neutropenic fever during chemotherapy. PMID- 29349918 TI - Dual Drug Backboned Shattering Polymeric Theranostic Nanomedicine for Synergistic Eradication of Patient-Derived Lung Cancer. AB - Most of the current nanoparticle-based therapeutics worldwide failing in clinical trials face three major challenges: (i) lack of an optimum drug delivery platform with precise composition, (ii) lack of a method of directly monitoring the fate of a specific drug rather than using any other labelling molecules as a compromise, and (iii) lack of reliable cancer models with high fidelity for drug screen and evaluation. Here, starting from a PP2A inhibitor demethylcantharidin (DMC) and cisplatin, the design of a dual sensitive dual drug backboned shattering polymer (DDBSP) with exact composition at a fixed DMC/Pt ratio for precise nanomedicine is shown. DDBSP self-assembled nanoparticle (DD-NP) can be triggered intracellularly to break down in a chain-shattering manner to release the dual drugs payload. Moreover, DD-NP with extremely high Pt heavy metal content in the polymer chain can directly track the drug itself via Pt-based drug mediated computer tomography and ICP-MS both in vitro and in vivo. Finally, DD-NP is used to eradicate the tumor burden on a high-fidelity patient-derived lung cancer model for the first time. PMID- 29349919 TI - Analysis of Follow-Up Methods of Vascular Access and Patient Outcomes in Hemodialysis at a Tertiary Care Hospital in China. AB - Arteriovenous fistula is the preferred option for vascular access in hemodialysis patients. The aim of this study was to assess different follow-up methods for hemodialysis patients in our hemodialysis center in China. A cohort of 124 patients with stage 3 chronic kidney disease was recruited and double-blind randomly assigned into two groups. Patients in Group A received phone calls to schedule their next consultation a week in advance. Patients in Group B scheduled their next appointment at the end of each visit. A total of 116 patients were included in the study and eight dropped out. Twenty-seven patients (46.4%) in Group A and 13 patients (22.4%) in Group B had an AVF prior to hemodialysis (P = 0.006), and 44.8% of patients in Group A and 15.5% of patients in Group B were using AVFs at the initiation of dialysis (P = 0.003). Sixteen patients (27.6%) in Group A and 24 patients (41.3%) in Group B required central venous catheters due to acute on chronic kidney disease and 13 patients (22.4%) in Group A and 21 patients (36.2%) in Group B required central venous catheters due to patient related delays (P = 0.02). At the end of the study, seven patients in Group A died and 17 patients in Group B died (P = 0.027). The patients who received phone calls to schedule appointments in advance had a higher rate of arteriovenous fistulas prior to dialysis and at hemodialysis initiation had a reduced incidence of acute on chronic kidney disease and patient-related delays, and had an improved prognosis. PMID- 29349920 TI - Hyperuricemia in Asian psoriatic arthritis patients. AB - AIM: It is generally accepted that hyperuricemia is commonly associated with psoriatic arthritis (PsA). However, variations in ethnicity, diet and habitat may contribute to differences in prevalence and risk factors for hyperuricemia in PsA patients. Moreover, Asian specific data is deficient. The primary objective of the present study was to determine the prevalence of hyperuricemia among PsA patients. The secondary objective was to explore its associated risk factors. METHODS: This was a multi-center, cross-sectional observational study of 160 PsA patients from local Rheumatology clinics. Serum uric acid (SUA) level and other clinical parameters were measured and hyperuricemia was defined as SUA level greater or equal to 360 umol/L in females and 420 umol/L in males. RESULTS: Forty nine of 160 patients (30.6%) had hyperuricemia, of which 32 were men, 17 were women. Among those with hyperuricemia, mean SUA level was 500.7 +/- 95.9 umol/L and 427.8 +/- 83.1 umol/L in males and females, respectively. Univariate analysis found: (i) overweight status; (ii) obesity; (iii) Psoriasis Area and Severity Index; (iv) body surface area; (v) severe skin involvement, as being potentially associated with hyperuricemia. Regression model identified overweight status increased the likelihood of hyperuricemia in PsA, with an odds ratio of 4.4 (95% CI: 2.0-9.5). Furthermore, there was moderately positive correlation (r = 0.37) between body mass index (BMI) and SUA level. No associations were found between arthritis conditions and duration, lipid profile, creatinine clearance; and hyperuricemia. CONCLUSION: A significant proportion of PsA patients had asymptomatic hyperuricemia. It was closely related with BMI, which represented metabolic dysregulation; but not with severity of skin disease, joint involvement or renal function. PMID- 29349921 TI - Community pharmacists' views on the regulation of complementary medicines and complementary-medicines practitioners: a qualitative study in New Zealand. AB - OBJECTIVES: To examine community pharmacists' perspectives on CMs regulation in New Zealand, where proposals for CMs regulations had recently been suspended and where, currently, CMs are only weakly regulated. METHODS: Qualitative, in-depth, semi-structured interviews with New Zealand practising community pharmacists are identified through purposive and convenience sampling. Data were analysed using a general inductive approach. KEY FINDINGS: Participants held mixed views regarding harmonisation of CMs regulations across Australia and NZ; some supported an NZ national regulatory framework for CMs, based on the Australian system. Participants recognised the current CMs regulatory framework in NZ as inadequate, that regulation was required to some extent, and that mandatory regulation was not necessarily required. A key reason given in support of CMs regulations was the need for greater assurances around quality of CMs. Participants also supported a regulatory framework that incorporated assessment of the safety of CMs, but were less convinced of the need for, or feasibility of, requiring evidence of efficacy from clinical trials. Participants believed that regulation of CMs practitioners, such as herbalists, and CMs retailers was important, although there were mixed views as to whether regulation should be statutory or whether self-regulation would be adequate. CONCLUSIONS: On the basis of these findings, pharmacists would be expected to welcome proposals for national regulations for CMs in NZ: such regulations should address concerns regarding product quality, inappropriate health claims and supporting evidence, and therefore should support pharmacists in meeting their obligations under the NZ Pharmacy Council's Code of Ethics. PMID- 29349922 TI - Association between breast milk intake at 9-10 months of age and growth and development among Malawian young children. AB - World Health Organization recommends exclusive breastfeeding for infants for the first 6 months of life, followed by introduction of nutritious complementary foods alongside breastfeeding. Breast milk remains a significant source of nourishment in the second half of infancy and beyond; however, it is not clear whether more breast milk is always better. The present study was designed to determine the association between amount of breast milk intake at 9-10 months of age and infant growth and development by 12-18 months of age. The study was nested in a randomized controlled trial conducted in Malawi. Regression analysis was used to determine associations between breast milk intake and growth and development. Mean (SD) breast milk intake at 9-10 months of age was 752 (244) g/day. Mean (SD) length-for-age z-score at 12 months and change in length-for-age z-score between 12 and 18 months were -1.69 (1.0) and -0.17 (0.6), respectively. At 18 months, mean (SD) expressive vocabulary score was 32 (24) words and median (interquartile range) skills successfully performed for fine, gross, and overall motor skills were 21 (19-22), 18 (16-19), and 38 (26-40), respectively. Breast milk intake (g/day) was not associated with either growth or development. Proportion of total energy intake from breast milk was negatively associated with fine motor (beta = -0.18, p = .015) but not other developmental scores in models adjusted for potential confounders. Among Malawian infants, neither breast milk intake nor percent of total energy intake from breast milk at 9-10 months was positively associated with subsequent growth between 12 and 18 months, or development at 18 months. PMID- 29349923 TI - Magnetic Macroporous Hydrogels as a Novel Approach for Perfused Stem Cell Culture in 3D Scaffolds via Contactless Motion Control. AB - There is an urgent need for 3D cell culture systems that avoid the oversimplifications and artifacts of conventional culture in 2D. However, 3D culture within the cavities of porous biomaterials or large 3D structures harboring high cell numbers is limited by the needs to nurture cells and to remove growth-limiting metabolites. To overcome the diffusion-limited transport of such soluble factors in 3D culture, mixing can be improved by pumping, stirring or shaking, but this in turn can lead to other problems. Using pumps typically requires custom-made accessories that are not compatible with conventional cell culture disposables, thus interfering with cell production processes. Stirring or shaking allows little control over movement of scaffolds in media. To overcome these limitations, magnetic, macroporous hydrogels that can be moved or positioned within media in conventional cell culture tubes in a contactless manner are presented. The cytocompatibility of the developed biomaterial and the applied magnetic fields are verified for human hematopoietic stem and progenitor cells (HSPCs). The potential of this technique for perfusing 3D cultures is demonstrated in a proof-of-principle study that shows that controlled contactless movement of cell-laden magnetic hydrogels in culture media can mimic the natural influence of differently perfused environments on HSPCs. PMID- 29349924 TI - Parental supervision for their children's toothbrushing: Mediating effects of planning, self-efficacy, and action control. AB - OBJECTIVES: With 60-90% of children worldwide reportedly experiencing dental caries, poor oral health in the younger years is a major public health issue. As parents are important to children's oral hygiene practices, we examined the key self-regulatory behaviours of parents for supervising their children's toothbrushing using the health action process approach. DESIGN AND METHOD: Participants (N = 281, 197 mothers) comprised Australian parents of 2- to 5-year olds. A longitudinal design was used to investigate the sequential mediation chain for the effect of intention (Time 1) on parental supervision for their youngest child's toothbrushing (Time 3), via self-efficacy and planning (Time 2), and action control (Time 3). RESULTS: A latent-variable structural equation model, controlling for baseline behaviour and habit, revealed significant indirect effects from intention via self-efficacy and action control and intention via planning and action control, on parental supervision behaviour. The model was a good fit to the data, explaining 74% of the variance in parents' supervising behaviour for their children's toothbrushing. CONCLUSION: While national recommendations are provided to guide parents in promoting good oral hygiene practices with their children, current results show the importance of going beyond simple knowledge transmission to support parents' intentions to supervise their children's toothbrushing actually materialize. Current findings make a significant contribution to the cumulative empirical evidence regarding self-regulatory components in health behaviour change and can inform intervention development to increase parents' participation in childhood oral hygiene practices, thus helping to curb rising oral health conditions and diseases. Statement of contribution What is already known on this subject? Self-regulatory skills are important to translate intentions into behaviour. Self-efficacy, planning, and action control are key self-regulatory skills for behaviour change. What does this study add? Self-regulatory skills are needed for parents to supervise their children's toothbrushings. Self-efficacy, planning, and action control are important self-regulatory skills in this context. Future interventions should map these self-regulatory predictors onto behaviour change techniques. PMID- 29349926 TI - Extracellular vesicles from early stage Plasmodium falciparum-infected red blood cells contain PfEMP1 and induce transcriptional changes in human monocytes. AB - Pathogens can release extracellular vesicles (EVs) for cell-cell communication and host modulation. EVs from Plasmodium falciparum, the deadliest malaria parasite species, can transfer drug resistance genes between parasites. EVs from late-stage parasite-infected RBC (iRBC-EVs) are immunostimulatory and affect endothelial cell permeability, but little is known about EVs from early stage iRBC. We detected the parasite virulence factor PfEMP1, which is responsible for iRBC adherence and a major contributor to disease severity, in EVs, only up to 12 hr post-RBC invasion. Furthermore, using PfEMP1 transport knockout parasites, we determined that EVs originated from inside the iRBC rather than the iRBC surface. Proteomic analysis detected 101 parasite and 178 human proteins in iRBC-EVs. Primary human monocytes stimulated with iRBC-EVs released low levels of inflammatory cytokines and showed transcriptomic changes. Stimulation with iRBC EVs from PfEMP1 knockout parasites induced more gene expression changes and affected pathways involved in defence response, stress response, and response to cytokines, suggesting a novel function of PfEMP1 when present in EVs. We show for the first time the presence of PfEMP1 in early stage P. falciparum iRBC-EVs and the effects of these EVs on primary human monocytes, uncovering a new mechanism of potential parasite pathogenesis and host interaction. PMID- 29349925 TI - Ethanolamine is a valuable nutrient source that impacts Clostridium difficile pathogenesis. AB - Clostridium (Clostridioides) difficile is a gastrointestinal pathogen that colonizes the intestinal tract of mammals and can cause severe diarrheal disease. Although C. difficile growth is confined to the intestinal tract, our understanding of the specific metabolites and host factors that are important for the growth of the bacterium is limited. In other enteric pathogens, the membrane derived metabolite, ethanolamine (EA), is utilized as a nutrient source and can function as a signal to initiate the production of virulence factors. In this study, we investigated the effects of ethanolamine and the role of the predicted ethanolamine gene cluster (CD1907-CD1925) on C. difficile growth. Using targeted mutagenesis, we disrupted genes within the eut cluster and assessed their roles in ethanolamine utilization, and the impact of eut disruption on the outcome of infection in a hamster model of disease. Our results indicate that the eut gene cluster is required for the growth of C. difficile on ethanolamine as a primary nutrient source. Further, the inability to utilize ethanolamine resulted in greater virulence and a shorter time to morbidity in the animal model. Overall, these data suggest that ethanolamine is an important nutrient source within the host and that, in contrast to other intestinal pathogens, the metabolism of ethanolamine by C. difficile can delay the onset of disease. PMID- 29349927 TI - Treatment-related toxicities of immune checkpoint inhibitors in advanced cancers: A meta-analysis. AB - BACKGROUND: We performed a meta-analysis to quantify toxic death, adverse events (AEs) and treatment discontinuation due to AEs from checkpoint inhibitors (CI). METHODS: We searched for randomized trials with adequate reporting for toxicity outcomes. Pooled risk ratios were estimated for CI versus chemotherapy or different combinations of these agents. RESULTS: Twenty trials of five different cancers with 10 794 patients with performance status 0 or 1 were identified. Toxic deaths from CI were infrequent (0.6%). Treatment discontinuations were less frequent for programmed-death-1 (PD-1) or PD-ligand-1 (PD-L1) inhibitors (5.8% vs 13.3%, P < 0.001) and cytotoxic-T-lymphocyte-associated-antigen-4 (CTLA-4) inhibitors (6.2% vs 11.4%, P = 0.002) than chemotherapy. PD-1/PD-L1 inhibitors had less grade 3, 4, and 5 (G3/4/5) AEs than chemotherapy (13.8% vs 39.8%, P < 0.001) or CTLA-4 inhibitors (13.4% vs 22.8%, P < 0.001). Combination CI had higher discontinuation (37.8% vs 11.6%, P < 0.001) and higher G3/4/5 AEs (55.3% vs 21.9%, P < 0.001) than CI monotherapy. Endocrinopathy (11.2% vs 0.9%), rash (10.1% vs 4.3%) and pneumonitis (3.1% vs 0.7%) were associated with CI, and alopecia (25.9% vs 1.0%), neutropenia (16.6% vs 0.6%) and neuropathy (7.6% vs 3.0%) with chemotherapy. CONCLUSIONS: CI inhibitors have different toxicity profiles to chemotherapy. These findings are useful for patient counselling and planning of future trials. PMID- 29349928 TI - Problem behaviours and psychotropic medication use in intellectual disability: a multinational cross-sectional survey. AB - BACKGROUND: Problem behaviours (PBs) are a common cause for clinician contact in people with disorders of intellectual development and may be a common cause for the prescription of psychotropic medication. We aimed to use a large, multinational sample to define the prevalence of PBs, the associations with psychotropic medication use, and to assess for any potential 'diagnostic overshadowing' by the label of PBs in a population of people with disorders of intellectual development. METHOD: A multinational, multi-setting, cross-sectional service evaluation and baseline audit was completed. Data were collected from UK hospitals, UK community settings, Sri Lanka and Hong Kong. A semi-structured questionnaire was completed by treating clinicians, capturing demographic details, prevalence rates of intellectual disability and psychotropic medication use, alongside psychiatric co-morbidity. RESULTS: A sample size of 358 was obtained, with 65% of included participants treated in an inpatient setting. Psychotropic use was prevalent (90%) in our sample, particularly antipsychotics (74%). The prevalence of PB was high (83%). There was no statistically significant association between psychotropic prescription and recorded psychiatric co-morbidity, suggesting prevalent 'off-label' use for PBs, or poor recording of psychiatric co-morbidity. There was some evidence of possible diagnostic overshadowing due to the PB classification. A higher dose of psychotropic medication was associated with aggression toward others (P = 0.03). CONCLUSIONS: We found evidence of prevalent potential 'off-label' use for psychotropic medication, which may be due to PBs. We also found evidence of potential diagnostic-overshadowing, where symptoms of psychiatric co-morbidity may have been attributed to PBs. Our findings provide renewed importance, across borders and health systems, for clinicians to consider a holistic approach to treating PBs, and attempting to best understand the precipitants and predisposing factors before psychotropic prescribing. PMID- 29349930 TI - Upcoming events of interest. PMID- 29349929 TI - Severity of cognitive disability and mental health court determinations about fitness to stand trial. AB - BACKGROUND: Little is known about the socio-demographic, clinical and legal determinants of mental health court decisions of unsoundness of mind and unfitness to stand trial for people with cognitive disability. We aimed to estimate the association between severity of cognitive disability and mental health court determinations of unsoundness or unfitness and describe the socio demographic, clinical and legal factors that predict these determinations. METHODS: Case file data were extracted on 92 individuals who had a criminal case referred to the Queensland Mental Health Court between 1 January 2013 and 31 December 2014 due to cognitive disability. We fit a modified multivariable Poisson regression model to estimate the association between severity of cognitive impairment and mental health court determination, controlling for socio demographic, clinical and legal factors. RESULTS: Adjusting for covariate effects, severity of cognitive impairment was positively associated with being found unfit to stand trial (adjusted prevalence risk ratio = 1.57; 95% confidence interval: 1.07, 2.33; P = 0.023), and comorbid psychotic disorder predicted an increased risk of being found unsound of mind at the time of offence (adjusted prevalence risk ratio = 3.63; 95% confidence interval: 1.38, 9.54; P = 0.009) by the Queensland Mental Health Court. CONCLUSIONS: Severity of cognitive disability is associated with determinations of unfitness but does not predict determinations of unsoundness in the Queensland Mental Health Court. Psychiatric assessments of cognitive impairment play a pivotal role in mental health court determinations for people with cognitive disability. PMID- 29349931 TI - Biomimetic Architectures for Peripheral Nerve Repair: A Review of Biofabrication Strategies. AB - Biofabrication techniques have endeavored to improve the regeneration of the peripheral nervous system (PNS), but nothing has surpassed the performance of current clinical practices. However, these current approaches have intrinsic limitations that compromise patient care. The "gold standard" autograft provides the best outcomes but requires suitable donor material, while implantable hollow nerve guide conduits (NGCs) can only repair small nerve defects. This review places emphasis on approaches that create structural cues within a hollow NGC lumen in order to match or exceed the regenerative performance of the autograft. An overview of the PNS and nerve regeneration is provided. This is followed by an assessment of reported devices, divided into three major categories: isotropic hydrogel fillers, acting as unstructured interluminal support for regenerating nerves; fibrous interluminal fillers, presenting neurites with topographical guidance within the lumen; and patterned interluminal scaffolds, providing 3D support for nerve growth via structures that mimic native PNS tissue. Also presented is a critical framework to evaluate the impact of reported outcomes. While a universal and versatile nerve repair strategy remains elusive, outlined here is a roadmap of past, present, and emerging fabrication techniques to inform and motivate new developments in the field of peripheral nerve regeneration. PMID- 29349932 TI - Isolation and characterization of lectin with antibacterial, antibiofilm and antiproliferative activities from Acinetobacter baumannii of environmental origin. AB - AIMS: Lectin is a nonimmunogenic glycoprotein that has been extracted mostly from the primary plant source leguminoase. Its ability to precisely recognize and bind to the complex cell bound structure enables it to play diverse roles. In this study, we obligate to define new sources of lectins since the production of lectins is very expensive. Therefore, we performed a study with the goal to isolate and characterize lectin from bacteria of plant origin and screen its ability as an antibacterial, antibiofilm and antiproliferative agent. METHODS AND RESULTS: We investigated isolates of environmental origin for their ability to produce lectin using phenotypic and molecular detection. The lectin was purified from an isolate AB119 which has abundant lectin activity and its molecular weight was determined by SDS-PAGE and HPLC. This lectin has a molecular weight of 30 kD and used to evaluate its antimicrobial, antibiofilm and antiproliferative activities using earlier published protocols. All bacterial isolates tested in this study showed the ability to produce biofilm which was inhibited in the presence of lectin significantly. In microtitre plate assay, the scale of biofilm inhibition by the purified lectin was significantly reduced for all bacterial species. Lectin inhibited the growth of all three tested bacterial species after treatment for 24 h and this antimicrobial effect was uniform to all species irrespective of Gram positive or Gram negative. The antiproliferative effects of lectin against HeLa cells were determined using MTT assay showed significant inhibitory effects on the proliferation at an IC50 of 10 MUM for 24 h. CONCLUSION: This study concludes that lectin has a promising application as an antimicrobial and, antibiofilm agent to control multidrug-resistant pathogen associated infections. At the same time, it has also promising ability to control the proliferation of tumour cell as evident by our study results. SIGNIFICANCE AND IMPACT OF STUDY: AB119 lectin from A.baumannii species was verified for its capability to control microbial growth and its biofilm formation. Results showed lectin was able to reduce growth as well biofilm formation of both Gram-positive and Gram-negative bacterial species. Lectin has a promising application as an antibiofilm agent to combat the growing number of multidrug-resistant pathogen associated infections. PMID- 29349933 TI - Patient's specific integration of OAR doses (D2 cc) from EBRT and 3D image-guided brachytherapy for cervical cancer. AB - The objective of this study was to assess the recommended DVH parameter (e.g., D2 cc) addition method used for combining EBRT and HDR plans, against a reference dataset generated from an EQD2-based DVH addition method. A revised DVH parameter addition method using EBRT DVH parameters derived from each patient's plan was proposed and also compared with the reference dataset. Thirty-one biopsy-proven cervical cancer patients who received EBRT and HDR brachytherapy were retrospectively analyzed. A parametrial and/or paraaortic EBRT boost were clinically performed on 13 patients. Ten IMRT and 21 3DCRT plans were determined. Two different HDR techniques for each HDR plan were analyzed. Overall D2 cc and D0.1 cc OAR doses in EQD2 were statistically analyzed for three different DVH parameter addition methods: a currently recommended method, a proposed revised method, and a reference DVH addition method. The overall D2 ccEQD2 values for all rectum, bladder, and sigmoid for a conformal, volume optimization HDR plan generated using the current DVH parameter addition method were significantly underestimated on average -5 to -8% when compared to the values obtained from the reference DVH addition technique (P < 0.01). The revised DVH parameter addition method did not present statistical differences with the reference technique (P > 0.099). When PM boosts were considered, there was an even greater average underestimation of -8~-10% for overall OAR doses of conformal HDR plans when using the current DVH parameter addition technique as compared to the revised DVH parameter addition. No statistically significant differences were found between the 3DCRT and IMRT techniques (P > 0.3148). It is recommended that the overall D2 cc EBRT doses are obtained from each patient's EBRT plan. PMID- 29349934 TI - Interleukin-34 levels in gingival crevicular fluid and plasma in periodontal health and disease with and without type-2 diabetes mellitus. AB - AIM: The aim of the present study was to evaluate and correlate the levels of interleukin-34 (IL-34) in gingival crevicular fluid (GCF) and plasma in chronic periodontitis (CP) patients with and without type-2 diabetes mellitus (DM). METHODS: A total of 175 patients were divided into five groups: (a) group I had 35 periodontally-healthy patients; (b) group II had 35 chronic gingivitis patients; (c) group III had 35 CP patients without type-2 DM; (d) group IV had 35 CP patients with type-2 DM; and (e) group V had 35 type-2 DM patients without CP. The GCF and plasma levels of IL-34 were quantified using enzyme-linked immunosorbent assay. Clinical and systemic parameters, such as gingival index, probing pocket depth, clinical attachment loss, and glycated hemoglobin levels, were evaluated. RESULTS: The mean IL-34 concentration in GCF and plasma was highest for group IV, followed by groups III, V, and II, and lowest in group I. The difference between them was statistically significant (P < .05). There was a positive correlation between IL-34 concentration in GCF and plasma in the study groups, with the exception of group I, for which there was a negative correlation. CONCLUSION: IL-34 can be considered a possible GCF and plasma inflammatory biomarker of periodontal disease progression and DM. PMID- 29349936 TI - Preeclampsia Increases the Incidence of Postpartum Cerebrovascular Disease in Korean Population. AB - BACKGROUND: Multiple studies have been reported regarding preeclampsia as a possible risk factor of cerebrovascular disease (CVD). However, the correlation of preeclampsia and CVD, whether it is a cause-effect relationship or they are sharing common predisposing condition, is not well understood. Therefore, the aim of this study was to investigate the association between the preeclampsia during pregnancy and development of postpartum CVD. METHODS: A total of 1,384,550 Korean women who had a delivery between January 1, 2010 and December 31, 2012, were enrolled. Women with the risk of CVD within 1 year prior to pregnancy were excluded based on the Charlson comorbidity index. Primary endpoint was the event of CVD within a year from delivery. After exclusion, 1,075,061 women were analyzed. RESULTS: During the follow-up of 1 year postpartum, there were 25,577 preeclampsia out of 1,072,041 women without postpartum CVD (2.39%), and 121 of 3,020 women with postpartum CVD had preeclampsia before delivery (4.01%). In multivariate logistic regression analysis, women who had preeclampsia during pregnancy showed a higher risk for postpartum CVD (odds ratio, 1.64; 95% confidence interval, 1.37-1.98). CONCLUSION: The incidence of CVD after delivery was higher in women who had preeclampsia during pregnancy. PMID- 29349935 TI - Pitfalls in the measurement of muscle mass: a need for a reference standard. AB - BACKGROUND: All proposed definitions of sarcopenia include the measurement of muscle mass, but the techniques and threshold values used vary. Indeed, the literature does not establish consensus on the best technique for measuring lean body mass. Thus, the objective measurement of sarcopenia is hampered by limitations intrinsic to assessment tools. The aim of this study was to review the methods to assess muscle mass and to reach consensus on the development of a reference standard. METHODS: Literature reviews were performed by members of the European Society for Clinical and Economic Aspects of Osteoporosis and Osteoarthritis working group on frailty and sarcopenia. Face-to-face meetings were organized for the whole group to make amendments and discuss further recommendations. RESULTS: A wide range of techniques can be used to assess muscle mass. Cost, availability, and ease of use can determine whether the techniques are better suited to clinical practice or are more useful for research. No one technique subserves all requirements but dual energy X-ray absorptiometry could be considered as a reference standard (but not a gold standard) for measuring muscle lean body mass. CONCLUSIONS: Based on the feasibility, accuracy, safety, and low cost, dual energy X-ray absorptiometry can be considered as the reference standard for measuring muscle mass. PMID- 29349937 TI - Changes in Clinical Characteristics of Patients with an Initial Diagnosis of Prostate Cancer in Korea: 10-Year Trends Reported by a Tertiary Center. AB - BACKGROUND: The Korea Central Cancer Registry reported that incidence rates of prostate cancer have not increased continuously. We used recent trends in the incidence of prostate cancer to generate a preliminary report of the Korean population with prostate cancer. METHODS: Patients initially diagnosed with prostate cancer by prostate biopsy from 2006 to 2015 at our tertiary center were selected. All patients were categorized according to age (< 65, 65-75, > 75 years), time period (2006-2010 vs. 2011-2015), and risk classification. Patients with insufficient data were excluded from the analysis. RESULTS: Of 675 patients (median prostate-specific antigen [PSA], 9.09 ng/mL), those with a Gleason score (GS) of 6 (32.3%) comprised the largest proportion in our cohort. The proportion with a GS of 8 increased for those aged 65-75 years, despite the lack of increase in PSA. Treatment patterns changed for those with very low to low risk cancer. The overall survival (OS) rate and the cancer-specific survival (CSS) rate for all patients at 5 years were 87% and 90%, respectively. Patients with a low body mass index (BMI; <= 23 kg/m2) had worse median OS and CSS rates. CONCLUSION: Significant differences in risk classifications and initial treatments were found between 2006-2010 and 2011-2015. Although PSA did not change, the GS did change. Lower BMI (<= 23 kg/m2) had worse effects on OS and CSS rates for Korean prostate cancer patients. PMID- 29349938 TI - Improved Regional Disparities in Neonatal Care by Government-led Policies in Korea. AB - BACKGROUND: Although the number of high-risk neonates has increased in Korea, hospitals were reluctant to open or maintain neonatal intensive care unit (NICU) due to the low medical cost. Consequently, there were regional disparities in facilities, equipment, and neonatal health outcomes. For these reasons, the Korean government began to invest in neonatal care during the last decade. We identified the status of NICUs in Korea and assessed changes after the government driven policies. METHODS: We surveyed 87 of 89 hospitals that operated NICUs in 2015. The questionnaire assessed the number of NICU beds, admission and mortality rates of very low birthweight infants (VLBWIs), personnel status, equipment and facilities, and available multidisciplinary approach. Current data was compared with the previous studies and changes in the status and function of the nationwide NICU from 2009 and 2011. RESULTS: During the last 7 years, there was an increase of 462 NICU beds, which met the required number estimated by the number of births and covered about 90% of regional VLBWI births. Status of facilities and equipment improved in all regions in Korea but there were still regional differences in multidisciplinary approach and human resources. The difference in odds ratios for mortality of VLBWI between regions decreased compared to 2009. CONCLUSION: There was improvement in regional disparities of neonatal care and mortality of premature babies with the government investment in Korea. Further supports are required for human resources and referral system. PMID- 29349939 TI - Comparison of District-level Smoking Prevalence and Their Income Gaps from Two National Databases: the National Health Screening Database and the Community Health Survey in Korea, 2009-2014. AB - BACKGROUND: We compared age-standardized prevalence of cigarette smoking and their income gaps at the district-level in Korea using the National Health Screening Database (NHSD) and the Community Health Survey (CHS). METHODS: Between 2009 and 2014, 39,049,485 subjects participating in the NHSD and 989,292 participants in the CHS were analyzed. The age-standardized prevalence of smoking and their interquintile income differences were calculated for 245 districts of Korea. We examined between-period correlations for the age-standardized smoking prevalence at the district-level and investigated the district-level differences in smoking prevalence and income gaps between the two databases. RESULTS: The between-period correlation coefficients of smoking prevalence for both genders were 0.92-0.97 in NHSD and 0.58-0.69 in CHS, respectively. When using NHSD, we found significant income gaps in all districts for men and 244 districts for women. However, when CHS was analyzed, only 167 and 173 districts for men and women, respectively, showed significant income gaps. While correlation coefficients of district-level smoking prevalence from two databases were 0.87 for men and 0.85 for women, a relatively weak correlation between income gaps from the two databases was found. CONCLUSION: Based on two databases, income gaps in smoking prevalence were evident for nearly all districts of Korea. Because of the large sample size for each district, NHSD may provide stable district-level smoking prevalence and its income gap and thus should be considered as a valuable data source for monitoring district-level smoking prevalence and its socioeconomic inequality. PMID- 29349941 TI - Letter to the Editor: When Claiming a U-shaped Association between Uric Acid Levels and Major Adverse Cardiac Events, Perhaps Show the Evidence? PMID- 29349940 TI - Etiology of Invasive Bacterial Infections in Immunocompetent Children in Korea (2006-2010): a Retrospective Multicenter Study. AB - BACKGROUND: Invasive bacterial infections in apparently immunocompetent children were retrospectively analyzed to figure causative bacterial organisms in Korea. METHODS: A total of 947 cases from 25 university hospitals were identified from 2006 to 2010 as a continuance of a previous 10-year period study from 1996 to 2005. RESULTS: Escherichia coli (41.3%), Streptococcus agalactiae (27.7%), and Staphylococcus aureus (27.1%) were the most common pathogens in infants < 3 months of age. S. agalactiae was the most prevalent cause of meningitis and pneumonia and E. coli was the major cause of bacteremia without localizing signs in this group. In children 3 to 59 months of age, Streptococcus pneumoniae (54.2%), S. aureus (20.5%), and Salmonella spp. (14.4%) were the most common pathogens. S. pneumoniae was the leading cause of pneumonia (86.0%), meningitis (65.0%), and bacteremia without localizing signs (49.0%) in this group. In children >= 5 years of age, S. aureus (62.8%) was the predominant pathogen, followed by Salmonella species (12.4%) and S. pneumoniae (11.5%). Salmonella species (43.0%) was the most common cause of bacteremia without localizing signs in this group. The relative proportion of S. aureus increased significantly over the 15-year period (1996-2010) in children >= 3 months of age (P < 0.001), while that of Haemophilus influenzae decreased significantly in both < 3 months of age group (P = 0.036) and >= 3 months of age groups (P < 0.001). CONCLUSION: S. agalactiae, E. coli, S. pneumoniae, and S. aureus are common etiologic agents of invasive bacterial infections in Korean children. PMID- 29349942 TI - Ancient Soil-Transmitted Parasite Eggs Detected from the Sixth Century Three Kingdom Period Silla Tomb. AB - The parasitic infection patterns of the Joseon period have begun to be revealed in a series of paleoparasitological studies. However, parasitism prevailing during or before the Three Kingdom period is still relatively unexplored. In the present study, we therefore conducted parasitological examinations of soil and organic-material sediments precipitated upon human hipbone and sacrum discovered inside an ancient Mokgwakmyo tomb dating to the Silla Dynasty (57 BCE-660 CE). Within the samples, we discovered ancient Ascaris lumbricoides (eggs per gram [EPG], 46.6-48.3) and Trichuris trichiura (EPG, 32.8-62.1) eggs, the species commonly detected among Korean populations until just prior to the 1970s. These findings show that soil-transmitted parasitic infection among the Silla nobility might not have been uncommon. This is the first-ever report on the presence of ancient parasite eggs in the samples obtained from a Three Kingdom period tomb; and it also presents the earliest positive results for any of the ancient South Korean tombs paleoparasitologically examined to date. PMID- 29349943 TI - Environmental and Body Concentrations of Heavy Metals at Sites Near and Distant from Industrial Complexes in Ulsan, Korea. AB - BACKGROUND: Industrial pollution may affect the heavy metal body burden of people living near industrial complexes. We determined the average concentrations of atmospheric heavy metals in areas close to and distant from industrial complexes in Korea, and the body concentrations of these heavy metals in residents living near and distant from these facilities. METHODS: The atmospheric data of heavy metals (lead and cadmium) were from the Regional Air Monitoring Network in Ulsan. We recruited 1,148 participants, 872 who lived near an industrial complex ("exposed" group) and 276 who lived distant from industrial complexes ("non exposed" group), and measured their concentrations of blood lead, urinary cadmium, and urinary total mercury. RESULTS: The results showed that atmospheric and human concentrations of heavy metals were higher in areas near industrial complexes. In addition, residents living near industrial complexes had higher individual and combined concentrations (cadmium + lead + mercury) of heavy metals. CONCLUSION: We conclude that residents living near industrial complexes are exposed to high concentrations of heavy metals, and should be carefully monitored. PMID- 29349944 TI - Investigation of Clinical and Pathological Relationships between Adult- and Pediatric-type NASH in Korean Children. AB - BACKGROUND: Histologically, nonalcoholic steatohepatitis (NASH) is categorized into adult-type (type 1) and pediatric-type (type 2). The origination of the histological difference between the two types and how they differ clinically remain uncertain. We aimed to understand the incidence and clinical characteristics of the two types of NASH in Korean children, and to investigate the association between their pathological type and clinical characteristics, using anthropometric and laboratory data. METHODS: In 38 children with confirmed NASH, we investigated hepatic pathological findings, and correlating factors between pathological type and laboratory and anthropometric data (weight percentile, body mass index (BMI) z-score, and blood pressure percentile). Adult type NASH was noted in 21 patients and pediatric-type in 17 patients. RESULTS: Age, sex, BMI, transaminase levels, and insulin resistance were not significantly different between the two groups. Triglyceride (TG) levels were higher in adult type NASH (P = 0.033). Hematocrit and albumin levels were lower in adult-type NASH (P = 0.016 and 0.013, respectively). Hepatic fibrosis was more common in pediatric-type. The fibrosis scores in patients with adult-type were mostly 0 and 1, whereas the score was 3 in patients with pediatric-type (P = 0.024, 0.004, and < 0.010, respectively). Anthropometric data, liver function, and insulin resistance scores did not differ between the two pathological NASH types. TG, hematocrit, and albumin may be potential factors to predict pathological types. Fibrosis was observed more frequently in pediatric-type NASH. CONCLUSION: Monitoring children with pediatric-type NASH for progression to fibrosis or cirrhosis is recommended. PMID- 29349945 TI - The Within-Group Discrimination Ability of the Cancer of the Prostate Risk Assessment Score for Men with Intermediate-Risk Prostate Cancer. AB - BACKGROUND: Significant clinical heterogeneity within contemporary risk group is well known, particularly for those with intermediate-risk prostate cancer (IRPCa). Our study aimed to analyze the ability of the Cancer of the Prostate Risk Assessment (CAPRA) score to discern between favorable and non-favorable risk in patients with IRPCa. METHODS: We retrospectively reviewed the data of 203 IRPCa patients who underwent extraperitoneal robot-assisted radical prostatectomy (RARP) performed by a single surgeon. Pathologic favorable IRPCa was defined as a Gleason score <= 6 and organ-confined stage at surgical pathology. The CAPRA score was compared with two established criteria for the within-group discrimination ability. RESULTS: Overall, 38 patients (18.7% of the IRPCa cohort) had favorable pathologic features after RARP. The CAPRA score significantly correlated with established criteria I and II and was inversely associated with favorable pathology (all P < 0.001). The area under the receiver operating characteristic curve for the discriminative ability between favorable and non favorable pathology was 0.679 for the CAPRA score and 0.610 and 0.661 for established criteria I and II, respectively. During a median 37.8 (interquartile range, 24.6-60.2) months of follow-up, 66 patients (32.5%) experienced biochemical recurrence (BCR). Cox regression analysis revealed that the CAPRA score, as a continuous sum score model or 3-group risk model, was an independent predictor of BCR after RARP. CONCLUSION: The within-group discrimination ability of preoperative CAPRA score might help in patient counseling and selecting optimal treatments for those with IRPCa. PMID- 29349946 TI - Validation Study of a Korean Version of the Abbreviated University of California, Los Angeles, PTSD Reaction Index (Abb-UCLA-PTSD RI) for Adolescents. AB - BACKGROUND: We aimed to verify a Korean version of the Abbreviated University of California, Los Angeles, Post-Traumatic Stress Disorder Reaction Index (Abb-UCLA PTSD RI-Korean version) among Korean adolescents to assess post-traumatic stress in this population. METHODS: We recruited 1,254 adolescents who completed the Abb UCLA-PTSD RI-Korean version scale, the Child Report of Post-Traumatic Symptoms (CROPS), the Lifetime Incidence of Traumatic Events (LITE), and the Children's Depression Inventory (CDI). Test-retest reliability was computed for a randomly selected 314 participants. Among all the students, 765 were included in the analysis because 143 students were classified in the normative group (LITE 1) and 622 were in the traumatized group (LITE 4). RESULTS: The internal consistencies of the nine-item and eight-item versions of the Abb-UCLA PTSD RI-Korean version were found to be high (Cronbach's alpha = 0.843 and 0.842, respectively). The criterion-related validity was based on comparison of the Abb-UCLA PTSD RI total scores between the normative and trauma groups. For the eight-item version, the normative group (4.6 +/- 4.6) and the traumatized group (8.8 +/- 6.0) demonstrated better criterion-related validity than those in the nine-item version (4.5 +/- 4.3 and 8.5 +/- 5.0, respectively). The test-retest reliability of the eight-item version was better than the nine-item version (r = 0.85 vs. 0.77). A two-factor model with eight items (two items regarding sleep, and the other six items made up the second factor) showed the best fit. CONCLUSION: Our results indicate that the eight-item Abb-UCLA PTSD RI-Korean version is a useful screening tool for post-traumatic stress in Korean adolescents. PMID- 29349947 TI - Incidence Rate of Atypical Femoral Fracture after Bisphosphonates Treatment in Korea. AB - BACKGROUND: Atypical femoral fracture (AFF) has been high-lightened, because it was associated with the long-term use of bisphosphonate. Comparing western countries, the incidence rate of AFF was unclear in East Asian patients. Our purposes were to estimate the incidence rate of radiologically defined AFF in Korea, and to determine the association between occurrence of AFF and long-term use of bisphosphonate. METHODS: We conducted a hospital-based, retrospective cohort study in patients aged >= 45 years, who took bisphosphonate. The occurrence of AFF was estimated by using incidence rate, and the age-adjusted incidence rate to U.S. 2010 Census data. The association between occurrence of AFF and the duration of bisphosphonate use was examined. The cumulative probability of AFF was plotted per each duration of bisphosphonate use. RESULTS: Among 10,338 individuals who took bisphosphonate, 13 patients with AFF following use of bisphosphonate were identified. The incidence rate was 85.9/100,000 person years (95% confidence interval [CI], 50.2-146.9), and age-adjusted incidence rate was 72.7/100,000 person-years (95% CI, 29.1-175.8). In Poisson regression analysis, higher body mass index (BMI) was associated with an increased risk of AFF (relative risk, 1.2; 95% CI, 1.004-1.359). The cumulative probability of AFF increased abruptly when the duration of bisphosphonate use was 4 years or more. CONCLUSION: Among Korean patients, the incidence rate of AFF was on a par with those of western countries, and this can provide basic information to conduct further studies by evaluating risk and benefit of continuing bisphosphonate. PMID- 29349948 TI - Case Report of Kidney Paired Donation (KPD) with Desensitization: the Strategy and Experience of 3-Way KPD in Samsung Medical Center. AB - As the need for the organ donation increases, strategies to increase kidney transplantation (KT) through expanded living donation have become essential. These include kidney paired donation (KPD) programs and desensitization in incompatible transplantations. KPD enables kidney transplant candidates with incompatible living donors to join a registry with other incompatible pairs in order to find potentially compatible living donor. Positive cross match and ABO incompatible transplantation has been successfully accomplished in selective cases with several pre-conditionings. Patients who are both difficult-to-match due to broad sensitization and hard-to-desensitize because of donor conditions can often be successfully transplanted through a combination of KPD and desensitization. According to the existing data, KPD can increase the number of KTs from living donors with excellent clinical results. This is also a cost effective treatment as compared with dialysis and desensitization protocols. We carried out 3-way KPD transplantation with one highly sensitized, positive cross match pair and with two ABO incompatible pairs. Herein we report our first successful 3-way KPD transplantation in a single center. To maximize donor recipient matching and minimize immunologic risk, KPD programs should use proper algorithms with desensitization to identify optimal donor with simultaneous two-, three- or more complex multi-way exchanges. PMID- 29349949 TI - Acute Spinal Subdural Hematoma in a Patient Taking Rivaroxaban. PMID- 29349950 TI - Issues and Solutions of Healthcare Data De-identification: the Case of South Korea. PMID- 29349951 TI - Tissue perfusion rate estimation with compression-based photoacoustic-ultrasound imaging. AB - Tissue perfusion is essential for transporting blood oxygen and nutrients. Measurement of tissue perfusion rate would have a significant impact in clinical and preclinical arenas. However, there are few techniques to image this important parameter and they typically require contrast agents. A label-free methodology based on tissue compression and imaging with a high-frequency photoacoustic ultrasound system is introduced for estimating and visualizing tissue perfusion rates. Experiments demonstrate statistically significant differences in depth resolved perfusion rates in a human subject with various temperature exposure conditions. PMID- 29349952 TI - Estimation of cerebral metabolic rate of oxygen consumption using combined multiwavelength photoacoustic microscopy and Doppler microultrasound. AB - The metabolic rate of oxygen consumption is an important metric of tissue oxygen metabolism and is especially critical in the brain, yet few methods are available for measuring it. We use a custom combined photoacoustic-microultrasound system and demonstrate cerebral oxygen consumption estimation in vivo. In particular, the cerebral metabolic rate of oxygen consumption was estimated in a murine model during variation of inhaled oxygen from hypoxia to hyperoxia. The hypothesis of brain autoregulation was confirmed with our method even though oxygen saturation and flow in vessels changed. PMID- 29349953 TI - [Concept of damage control and the choice of operative methods in the treatment of pelvic fractures]. PMID- 29349954 TI - [Influence on coagulation function and the therapy effect of damage control orthopaedics for unstable pelvic fractures and multiple fractures of extremities]. AB - OBJECTIVE: To retrospectively explore the effects of damage control orthopaedics concept on coagulation and curative effects in unstable pelvic fractures and multiple fractures of limbs. METHODS: From March 2014 to December 2015, 40 patients with unstable pelvic fractures and limbs multiple fractures in treatment group included 22 males and 18 females with an average age of (39.00+/-4.12) years old were treated with the damage control orthopaedics concept, the ISS score was (25.36+/-10.81) on average;Other 40 patients with the same trauma in conventional group included 25 males and 15 females with an average age of (38.00+/-3.24) years old were treated with conventional method from January 2012 to January 2014 served as control, the average ISS score was 26.56+/-11.44. Matta criteria and Majeed function standard were used respectively to evaluate the fracture reduction and therapeutic effects postoperatively. Coagulation function on the 7th day postoperatively was compared between two groups. RESULTS: All patients were followed up for 6 to 24 months. According to Matta criteria, the fracture reduction of the treatment group and the conventional group were (7.38+/ 5.09) mm and (10.11+/-6.53) mm, respectively (P<0.05). Majeed functional results of the treatment group and the conventional group were (86.12+/-6.84) points and (77.53+/-8.30) points, respectively (P<0.05). On the 7th day after surgery, PT, APTT, TT of the treatment group were significantly higher than that of the control group;and Fib of the treatment group was also significantly lower than that of the conventional group(P<0.05). CONCLUSIONS: The concept of damage control orthopaedics could effectively improve coagulation function of the patients with unstable pelvic fractures and limbs multiple fractures, thus are beneficial to the functional recovery as well as improve the curative effect postoperatively. PMID- 29349955 TI - [Clinical application of percutaneous iliosacral screws combined with pubic ramus screws in Tile B pelvic fracture]. AB - OBJECTIVE: To investigate the application and effect of minimally invasive percutaneous anterior pelvic pubic ramus screw fixation in Tile B fractures. METHODS: A retrospective review was conducted on 56 patients with posterior pelvic ring injury combined with fractures of anterior pubic and ischiadic ramus treated between May 2010 and August 2015, including 31 males and 25 females with an average age of 36.8 years old ranging from 35 to 65 years old. Based on the Tile classification, there were 13 cases of Tile B1 type, 28 cases of Tile B2 type and 15 cases of Tile B3 type. Among them, 26 patients were treated with sacroiliac screws combined with external fixation (external fixator group) and the other 30 patients underwent sacroiliac screw fixation combined with anterior screw fixation (pubic ramus screw group). Postoperative complications, postoperative ambulation time, fracture healing, blood loss, Majeed pelvic function score and visual analogue scale(VAS) were compared between two groups. RESULTS: Fifty-four patients were followed up from 3 to 24 months with a mean of 12 months. There were no significant difference in the peri-operative bleeding and operation time between two groups(P>0.05). The postoperative activity time and fracture healing time of pubic ramus screw group were shorter than those of the external fixator group, the differences were statistically significant(P<0.05). The Majeed score, VAS score of pubic ramus screw group were higher than those of the external fixator group, the differences were statistically significant(P<0.05). The incidence of postoperative complications of pubic ramus screw was lower than that of the external fixator group, the difference was statistically significant (P<0.05). CONCLUSIONS: Percutaneous iliosacral screws fixation combined with the pubic ramus screw is an effective and safty treatment method to the Tile B pelvic fracture. It has advantages of early ambulation, relief of the pain and few complications. PMID- 29349956 TI - [Therapeutic observation of subcutaneous pedicle screw-rod system with modified placement for Tile B pelvic fractures]. AB - OBJECTIVE: To investigate the feasibility and therapeutic effect of subcutaneous pedicle screw-rod system with modified placement in treatment of Tile B pelvic fractures. METHODS: From June 2014 to August 2015, 14 patients with Tile B pelvic fractures were treated by subcutaneous pedicle screw-rod system with modified placement in the anterior inferior iliac spine and pubic tubercle. There were 8 males and 6 females, aged from 23 to 65 years with an average of 42 years. Operative time, intraoperative blood loss, fracture healing and postoperative complication were observed and clinical effects were evaluated by Matta reduction standard and Majeed score. RESULTS: All patients were followed up from 8 to 15 months with an average of 10.5 months. Operative time was 25 to 45 min with an average of 32 min;intraoperative blood loss was 10 to 35 ml with an average of 18 ml. All fractures got primary healing and healed time was 9 to 14 weeks with an average of 12.5 weeks. No postoperative incision infection, internal fixation failure and ectopic ossification were found, 4 cases occurred unilateral lateral femoral cutaneous nerve injury and 1 case occurred unilateral femoral nerve paralysis, but all restored finally. According to Matta criteria, reduction was excellent in 7 cases, good in 5 cases, fair in 2 case. According to Majeed score system, the functional evaluation at last follow-up was excellent in 5 cases, good in 7 cases, fair in 2 cases with the average score of 81.50+/-8.05. CONCLUSIONS: Subcutaneous pedicle screw-rod system with modified placement in the anterior inferior iliac spine and pubic tubercle have advantages of strong reduction, less trauma and complications, and is a promising surgical method in the treatment of Tile B pelvic fractures. PMID- 29349957 TI - [Choices of the internal fixation and approaches on unstable pelvic ring fractures]. AB - OBJECTIVE: To discuss the suitable surgical approach and the internal fixation of unstable pelvic pelvic fractures. METHODS: From May 2010 to May 2015, 45 patients with unstable pelvic fractures were treated with different approaches and fixations, including 38 males and 7 females with an average age of 45 years ranging from 21 to 61 years. The course was within 2 weeks. According to Young Burg classification, 23 patients were lateral compression injuries, 6 patients were vertical shearing injuries, 16 patients were anterior-posterior compression injuries. All patients had hip pain and limitation of motion, the X-rays showed the pelvic ring fracture. RESULTS: All wounds healed well without complications, 45 cases were followed up for a mean period of 13 months (ranged 9 to 21 months). Patients with hip pain had a good postoperative pain relief. The post-operative X rays showed the reduction was satisfied and the pelvic ring shaped well. According to Majeed standards, the final follow-up score was 93.5+/-11.6, 35 cases got excellent results, 8 were good, 2 were fare. CONCLUSIONS: The unstable pelvic and acetabular fractures are always with compound injury. Beside the reduction, to decrease the second surgery trauma should take into consideration as well, the intra-articular reduction and the stability of the pelvic were especially valued, so combined the different approach with minimal invasive technique can get good clinical result. PMID- 29349958 TI - [Biomechanical analysis of the correlation between sacral tilt displacement and L5S1 disc degeneration]. AB - OBJECTIVE: To biomechanical analysis of the correlation between sacral tilt displacement and L5-S1 disc degeneration. METHODS: From July 2011 to July 2013, 81 patients with lumbar disc herniation and sacroiliac joint disorder including 45 males and 36 females with an average age of (45.39+/-1.30) years ranging from 18 to 65 years old were selected. The course of the disease ranged from 1 to 144 months with an average of (12.64+/-2.19) months. All patients were taken lumbar spine lateral X-ray films, the lumbar curvature angle, L4-L5 or L5-S1 intervertebral gap distance between points, and the lumbosacral angle was measured and correlated analyzed. RESULTS: The lumbar curvature of female patients with L5S1DH were significantly larger than male patients [(22.18+/-8.62) degrees vs (16.17+/-4.97) degrees , P<0.05]. Lumbar curvature and lumbosacral angle showed a positive correlation in LDH (R=0.48, P<0.01,y=7.25+0.38x, P<0.01); Male patients with L4-5DH were more obvious (R=0.55, P<0.05, y=5.80+0.43x, P<0.01); Female patients with L5S1DH were particularly evident(R=0.74, P<0.01,y=0.91x-5.30, P<0.01). The lumbosacral angle and L4-5 intervertebral gap was a positive correlation in L4-5DH(R=0.27, P<0.05); While L5-S1 intervertebral gap and lumbosacral angle were not correlated(P>0.05) in L5S1DH. CONCLUSIONS: The sacral tilt displacement and L5-S1 disc degeneration were closely related to provide a new understanding philosophy and therapeutic approach for clinical treatment of intractable lumbar L5S1DH. PMID- 29349959 TI - [Comparison of the curative effect between over-elbow splint and traditional small splint fixation in the treatment of comminuted Colles fracture]. AB - OBJECTIVE: To analyze the clinical efficacy of over-elbow small splint fixation for the treatment of comminuted Colles fractures. METHODS: From October 2013 to October 2015, 52 patients with comminuted Colles fracture were divided into two groups (the traditional splint fixation group and the over-elbow small splint fixation group) according to the treatment strategy. There were 26 patients in the over-elbow small splint fixation group including 7 males and 19 females with an average age of (64.615+/-11.475) years old ranging from 38 to 85 years old, and 26 patients in the traditional splint fixation group including 9 males and 17 females with an average age of (65.269+/-13.162) years old ranging 36 to 91 years old, respectively. In the over-elbow small splint fixation group, 3 cases were type A3 fractures, 9 cases were type C1, 7 cases were type C2 and 7 cases were type C3;in the traditional splint fixation group, 4 cases were type A3, 8 cases were type C1, 9 cases were type C2 and 5 cases were type C3. After manipulative reduction, the fractures in traditional splint fixation group were fixed with traditional small splint, and the fractures in over-elbow small splint fixation group were added with over-elbow right angle splint for the first three weeks, then continued fixing like the control group until clinical cicatrization. All patients in both groups were regularly taken X-ray examination and changed dressings to obtain the clinical healing. Patients were guided to do functional exercise after splints were taken off. The therapeutic effects were evaluated according to modified Green and O'Brein score system after 8 weeks' functional exercise. RESULTS: All patients got clinical healing without severe complications in both groups. The shortened length of radius in traditional splint fixation group was more than that in over-elbow small splint fixation group (5.923+/ 1.978) mm VS (2.962+/-1.248) mm(P<0.05). There was no significant difference in radial incline between two groups. There was a higher wrist score in over-elbow small splint fixation group compared with traditional splint fixation group 89.615+/-11.482 vs 80.385+/-13.485(P<0.05). CONCLUSIONS: Over-elbow small splint fixation is better than traditional splint fixation for the treatment of comminuted Colles fracture because of reliable clinical result and excellent wrist functional recovery. PMID- 29349960 TI - [Anterolateral acromial approach for the treatment of proximal humerus in 2-or 3 part fractures-a case-control study]. AB - OBJECTIVE: To explore the clinical curative effect of anterolateral acromial approach in treating two-and three-part of proximal humeral fractures. METHODS: Forty-two patients of proximal humeral fractures from January 2010 to June 2014 were analyzed retrospectively, including 23 males and 19 females with a mean age of 61.5 years old ranging from 40 to 76 years old. Among them, 22 cases were treated with anterolateral acromial approach and 20 cases were treated with deltopectoral approach. The operation time, intraoperative blood loss, postoperative hospitalization days, fracture healing time of two groups were compared. The shoulder pain after 1 week was assessed by the VAS score. The postoperative shoulder joint function was evaluated after 3 months and more than 6 months by Constant score. RESULTS: The follow-up time was at final 14 months. There were significant differences in operation time(P=0.003), intraoperative blood loss(P=0.001), postoperative hospital day(P=0.013), postoperative shoulder pain after 1 week(P=0.026), postoperative Constant score after 3 months(P=0.014) between the anterolateral acromial approach group and the deltopectoral approach group. There were no significant differences in clinical union time of bone(P=0.462), postoperative constant score after more than 6 months(P=0.204) between the anterolateral acromial approach group and the deltopectoral approach group. There were no breakage of the internal fixation and humeral head osteonecrosis. CONCLUSIONS: It has some advantages with anterolateral acromial approach to treat Neer two-and three-part of proximal humeral fractures, such as short operation time, less intraoperative bleeding, lighter postoperative pain, quicker recovery of function. PMID- 29349961 TI - [Total hip arthroplasty for post-traumatic arthritis after internal fixation of acetabular fracture]. AB - OBJECTIVE: To study the clinical outcome of total hip arthroplasty(THA) for traumatic arthritis after acetabular fracture. METHODS: From June 2010 to June 2014, 33 hips in 33 patients with traumatic arthritis after acetabular fracture were retrospective analyzed including 21 males and 12 females with a mean age of 44.6 years old. All the patients received THA with bio-prostheses. Harris score was used to evaluate the hip function of patients before and after operation, the X-ray was adopted for radiographic evaluation of the hip prosthesis. RESULTS: All patients were followed up for 7 to 38 months with an average of 21.6 months. The Harris score increased from preoperative 53.6+/-2.4 to 94.0+/-3.0 at the final follow-up, the difference was statistically significant(t=55.37, P<0.05). The X ray evaluation showed the prosthesis was in good position, no loosening of the prosthesis, dislocation and periprosthetic osteolysis. CONCLUSIONS: THA is an effective treatment for the traumatic arthritis after acetabular fracture;internal fixation of acetabular fractures could not be removed if it shows difficult but does not affect the prosthesis placement. PMID- 29349962 TI - [Midterm clinical outcome for ankylosing spondylitis patients with early hip involved diseases treated with arthroscopic technique]. AB - OBJECTIVE: To study the clinical outcome of manipulation release combined with arthroscopic debridement and synovia resection under general anesthesia for early hip involvment in patients with ankylosing spondylitis. METHODS: Manipulation release combined with arthroscpic debridement and synovium resection were performed for hip lesion in 22 patients with ankylosing spondylitis from June 2011 to June 2013, incuding 6 males and 16 females with anverage age of 24.7 years ranging from 17 to 23 years. The course of the diseases was from 10 to 41 months(22.1 months on average). After 6 months of conservative treatment, hip pain and other symptoms were no relief. The preoperative and postoperative follow up evaluation was performed and compared by the hip movement, VAS pain score, mHHS score and NAHS score. RESULTS: All the patients were followed up for 26 to 44 months with an average of 30.2 months. The range of motion in active flexion extension, abduction-adduction, internal-external rotation in 0 degrees flexion and 90 degrees flexion increased from (78.2+/-10.2) degrees , (36.3+/-6.4) degrees , (31.1+/-9.2) degrees and (37.3+/-10.5) degrees before operation to (113.5+/-8.4) degrees , (55.7+/-8.4) degrees , (58.7+/-2.1) degrees and (60.1+/ 9.8) degrees after operation, respectively. The VAS scores decreased from 8.5+/ 9.4 before operation to 5.5+/-7.1 after operation. The modified Harris and NAHS scores increased from 60.8+/-6.9 and 56.9+/-6.25 before operation to 88.1+/-10.4 and 84.6+/-5.4 after operation, respectively. CONCLUSIONS: Manipulation release combined with arthroscopic debridement and synovium resection under general anesthesia could effectively control the progression of hip lesion in patients with ankylosing spondylitis restoring the ROM, relieve pain symptoms, delay joint deformity and ankylosis with less bleeding, faster recovery, and significantly improve patients' quality of life. PMID- 29349963 TI - [Research on the stability of teaching robots of rotation-traction manipulation]. AB - OBJECTIVE: To evaluate the stability of teaching robot of rotation-traction manipulation. METHODS: Operators were required to get the hang of rotation traction manipulation and had clinical experience for over 5 years. The examination and data processing of the ten operators in our research were collected by the teaching robot of rotation-traction manipulation. Traction, pulling force, maximum force, pulling time, rotational amplitude and pitch range were recorded and compared for five times(G1, G2, G3, G4 and G5). The qualification rates were analyzed to evaluate the stability of teaching robot of rotation-traction manipulation. RESULTS: Nonconforming items were found in G1 and G2, for instance, pulling force(P=0.074), maximum force(P=0.264) and rotational amplitude (P=0.531). There was no statistically difference. None nonconforming item was found in G3, G4 and G5. All data were processed by SPSS and One-way ANOVA was used to analysis. Pulling force was found statistically different in G1, compared with G4 and G5(P=0.015, P=0.006). Maximum force was found statistically different in G1, compared with G4 and G5 (P=0.021, P=0.012). None differences were found in other comparisons (P>0.05). CONCLUSIONS: The teaching robot of rotation-traction manipulation used in our research could provide objective and quantitative indices and was considered to be an effective tool of assessing the rotation-traction manipulation. PMID- 29349964 TI - [Biomechanical study of the lateral wall of the femur in the treatment of femoral intertrochanteric fracture with intramedullary or extramedullary fixation]. AB - OBJECTIVE: To observe the biomechanical effects of the lateral wall of the femur in treating femoral intertrochanteric fractures with intramedullary or extramedullary fixation to guide the choice of clinical fixed methods. METHODS: Twelve adults femur specimens of intertrochanteric fractures were belong to the type A1 of the AO fracture classification and randomly divided into the lateral wall complete PFNA group, the lateral wall complete PF-LCP group, the lateral wall breakage PFNA group, lateral wall breakage PF-LCP group, every group had 3 specimens. The four groups of specimens were subjected to compressive loading experiment with Universal Material Testing Machine. The maximum loading force was observed. The distance between fracture ends, the distance of fracture dislocation and the sliding distance of the fracture fragments along the intertrochanteric were measured with Calipers. RESULTS: The maximum loading force of lateral wall complete PFNA group were larger than that of lateral wall complete PF-LCP group, and the maximum loading force of lateral wall breakage PFNA group were larger than that of lateral wall breakage PF-LCP group, there were significant differences (P<0.05). The distance between fracture ends of the four groups before compression were not significant differences(P>0.05). The distance between fracture ends, the distance of fracture dislocation and the sliding distance of the fracture fragments were not significant differences between lateral wall complete PFNA group and lateral wall complete PF-LCP group after compression (P>0.05). But the distance between fracture ends, the distance of fracture dislocation and the sliding distance of the fracture fragments of lateral wall breakage PFNA group were less than that of lateral wall breakage PF LCP group(P<0.05). CONCLUSIONS: Intramedullary fixation of intertrochanteric fractures have stronger loading force. Both intramedullary and extramedullary fixation of intertrochanteric fractures have strong stability when the lateral wall of the femur is complete, but intramedullary fixation of intertrochanteric fractures is stronger stability than extramedullary fixation when the lateral wall of the femur is broken. So the intramedullary fixation is the first choice for the treatment of intertrochanteric fracture. PMID- 29349965 TI - [Clinical characteristics analysis of lumbar disc herniation with symptom aggravated caused by spinal manipulative therapy]. AB - OBJECTIVE: To discuss the characteristics of lumbar disc herniation (LDH) with symptom aggravated caused by spinal manipulative therapy (SMT). METHODS: Detailed clinical profiles of a total number of 10 LDH patients with symptoms aggravated after SMT were reviewed including 5 males and 5 females with age from 46 to 68 years old, 7 patients of them were more than 50 years old. The clinical data of 10 patients were analyzed involving age, gender, clinical symptoms, signs, imaging findings, surgical treatment and prognosis. Laminectomy and discectomy were performed, and follow-up was carried out in all patients. RESULTS: The duration of symptoms in all the patients before SMT was 4 to 15 years. After the therapy, an acute exacerbation of back and radicular pain was observed within 24 hours. MRI showed intervertebral disc herniation, 7 patients were observed in L4 L5. The time internal between the exacerbation of presentation and surgery was 23.1 days. No perioperative complications occurred. All the patients were relieved of radicular pain a few days after surgery. During postoperative follow up, all patients regained the ability to walk; Eight patients reported a complete resolution of presentation and the rest two patients were significantly improved. CONCLUSIONS: SMT should be prohibited in some LDH patients to prevent neurological damages, in whom there are 5 possible risk factors. PMID- 29349966 TI - [A medium term therapeutic effects of anatomic locking plate for femoral intertrochanteric with lateral femoral wall fractures]. AB - OBJECTIVE: To retrospectively study medium term follow-up outcomes of the femoral intertrochanteric with lateral femoral wall fractures using anatomic locking plate fixation. METHODS: From June 2010 to January 2013, 18 cases of the unstable femoral intertrochanteric with lateral femoral wall fractures were treated with the anatomic locking plate, included 8 males and 10 females with an average age of 75.5 years ranging from 19 to 83 years old. There were 8 cases of traffic accident injuries, 6 cases of falls injuries, and 4 cases of falling from high place. The time from injury to operation was ranged from 1 to 14 days with an average of 4.5 days. The operation time, intraoperative blood loss and the length of hospitalization were recorded and analyzed. The fracture union was assessed by follow-up radiographs and hip functional recovery by PPMS and Harris hip scoring. RESULTS: All patients were followed up from 36 to 68 months with a mean of(44.8+/ 8.8) months. The mean operative time was (61.02+/-38.28) min;the mean blood loss was (226.00+/-162.52) ml;the mean length of hospitalization was (10.8+/-9.2) days. During the follow-up period, no infection, deep veintllrombosis, screwed cut-out and implant failure occurred in all patients. Coxa vara with shortening deformity was noted in 2 cases. Bone union was found in all the cases. The bone healing time was ranged from 4 to 10 months with an average of 6.2 months. The mean PPMS score at the final follow-up was 7.22+/-2.36. The Harris score was 79.46+/-11.02, 5 cases were classified as excellent, 9 as good and 2 as fair. CONCLUSIONS: Proximal femoral anatomic locking plate can be used in treating intertrochanteric fractures with compromised lateral wall, which has a satisfied medium term follow-up outcomes, especially for complex fractures patterns in which intramedullary nailing may be difficult, and should not emphasis on premature loading. PMID- 29349967 TI - [Treatment of children with femoral subtrochanteric fractures by the external fixation combined with single hip plaster]. AB - OBJECTIVE: To explore curative effects of external fixation combined with single hip plaster in treating children with femoral subtrochanteric fracture. METHODS: Form March 2009 to July 2016, 15 children with femoral subtrochanteric fracture were treated with external fixation combined with single hip plaster, including 9 males and 6 females with a mean age of 8.5 years old ranging from 5 to 14 years old. According to fracture classification of Seinsheimer, 3 cases were type IIA, 4 cases were type IIB, 3 cases were type IIC, 2 cases were type IIIA, 1 case was type IIIB, 1 case was type IV, 1 case was type V. Complications and radiographs were retrospectively reviewed. Postoperative function of hips were evaluated according to Sanders criteria. RESULTS: All children were followed up from 16 to 48 months with an average of 32 months. No early closure of epiphysis, bone nonunion and breakage of screw occurred. According to the Sanders score standard of hip function, the result was excellent in 14 cases, good in 1 case. There were no hip inversion, limb shortening, excessive growth and other malformations. CONCLUSIONS: External fixation combined with single hip plaster for the treatment of children is a safe and effective fixation, which provide a new choice of femoral subtrochanteric fracture. PMID- 29349968 TI - [Clinical outcomes of total hip arthroplasty using Wagner SL revision stem in femoral intertrochanteric fractures for patients with old fracture or painful arthritis before injury]. AB - OBJECTIVE: To retrospectively study the clinical results of total hip arthroplasty(THA) using Wagner SL revision stem for patients with femoral intertrochanteric fracture. METHODS: From 2006 January to 2009 December, 29 consecutive patients with femoral intertrochanteric fractures were performed THA using Wagner SL revision stem and intertrochanteric reconstruction, including 18 males and 11 females with an average age of 49 years old ranging from 43 to 58. Among them, 8 cases were oboslete femoral intertrochanteric fractures and 21 cases were the intertrochanteric fractures with painful arthritis before injuries. After the operation, the follow-up results were evaluated with clinical and radiographic criteria. The clinical follow-up results were evaluated by Harris score, limb length discrepancy, ROM of hips and the strength of the hip abductor. The X-ray imaging follow-up results were evaluated by periprosthetic osteolysis, prosthesis loosening and radiolucent. RESULTS: All the operations were successfully completed without serious complications associated with THA. Twenty-nine cases were followed up for a mean duration of 8.2 years (ranged, 6 to 10). There was no acceptable thigh pain. The first time walk after operation, 8 patients with oboslete intertrochanteric fracture complained the surgical sides were longer, with the passage of time, the complaint significantly reduced. At 3 months after operation, X-ray films of 21 cases showed intertrochanteric fractures healed well who had painful arthritis before injuries. An average of 6 months after operation (ranged, 3 to 8), X-ray films of 8 cases of oboslete intertrochanteric fracture showed that the bone graft and trochanter with obvious callus connection. There were no obvious prosthesis subsidence on X-ray film at the final follow-up. The recovery of hip movement range was satisfactory, no hip abduction strength was weak. More than 6 years after the operation, according to the Harris scoring evaluation of hip joint, the result was excellent in 18 cases, good in 9 cases, general in 2 cases. CONCLUSIONS: The clinical results of total hip arthroplasty using Wagner SL revision stem for patient with femoral intertrochanteric fracture is a reliable method, intertrochanteric reconstruction not only makes for prosthesis and joint stability, but also increases bone reserve. PMID- 29349969 TI - [Early application of the antibiotic-laden bone cement (ALBC) combined with the external fixation support in treating the open fractures of lower limbs complicated with bone defect]. AB - OBJECTIVE: To discuss the curative effect of the early application of the antibiotic-laden bone cement (ALBC) combined with the external fixation support in treating the open fractures of lower limbs complicated with bone defect. METHODS: From December 2013 to January 2015, 36 cases of lower limb open comminuted fractures complicated with bone defects were treated by the vancomycin ALBC combined with the external fixation support, including 26 males and 10 females with an average age of 38.0 years old ranging from 19 to 65 years old. The included cases were all open fractures of lower limbs complicated with bone defects with different degree of soft tissue injuries. Among them, 25 cases were tibial fractures, 11 cases were femoral fractures. The radiographs indicated a presence of bone defects, which ranged from 3.0 to 6.1 cm with an average of 4.0 cm. The Gustilo classification of open fractures:24 cases were type IIIA, 12 cases were typr IIIB. The percentage of wound infection, bone grafting time, fracture healing time and postoperative joint function of lower limb were observed. The function of injured limbs was evaluated at 1 month after the clinical healing of fracture based on Paley evaluation criterion. RESULTS: All cases were followed up for 3 to 24 months with an average of (6.0+/-3.0) months. The wound surface was healed well, neither bone infections nor unhealed bone defects were presented. The reoperation of bone grafting was done at 6 weeks after the patients received an early treatment with ALBC, some of them were postponed to 8 weeks till the approximate healing of fractures, the treatment course lasted for 4 to 8 months with an average of(5.5+/-1.5) months. According to Paley and other grading evaluations of bone and function, there were 27 cases as excellent, 5 cases as good, 3 cases as ordinary. CONCLUSIONS: The ALBC combined with external fixation support was an effective method for early treatment to treat the traumatic lower limb open fractures complicated with bone defects. This method was typified with the advantages such as easy operation, short operation time, overwhelming superiority in controlling infection and provision of good bone grafting bed, a good bone healing can be realized by the use of membrane induction technology for bone grafting. PMID- 29349970 TI - [Total thigh musculocutaneous flap in reconstruction of refractory pressure ulcers around hips in patients with spinal cord injury]. AB - OBJECTIVE: To discuss the treatment of life-threatening refractory pressure ulcers around hips in patients with spinal cord injuries(SCI)and evaluate its clinical outcomes. METHODS: From March 2012 to June 2015, eight paraplegic patients with life-threatening refractory pressure ulcers around hips were treated with total thigh musculocutaneous flaps following amputation of proximal femurs or hips, including 7 males and 1 female with an average age of (52.0+/ 2.6) years old ranging from 35 to 68. The coures of disease was from 10 months to 7 years with a mean of(2.9+/-0.2) years. All the 8 patients had compound ulcers of more than two parts, 7 cases had hip infection on the same side. The area of superficial wounds ranged from 3.0 cm*3.0 cm to 12.0 cm*15.0 cm. The clinical effects were evaluated according to infection controlling, wound healing, improving of nutrition and life quality of patients. RESULTS: All patient were followed up for 3 months to 2 years with an average of 1.3 years. All flaps survived, 5 cases obtained wound healing at one-stage, 2 cases had wound dehiscence and the wounds were closed after a second operation, 1 case had partial flap necrosis which was healed by dressing change, 1 case had urethral injury that was repaired in operation. All wounds were cured successfully without infection and ulcer recurrence during the follow-up period. The nutrition and quality of life of all cases improved observably after operation. CONCLUSIONS: The total thigh musculocutaneous flap is effective to reconstruct the refractory pressure ulcers around hip of patient with SCI. It can rescue life at the cost of losing one lower limb. It is an operation of last resort for the patients. PMID- 29349971 TI - [Intraosseous lipoma: retrospective analysis of 19 patients]. AB - OBJECTIVE: To investigate the diagnostic and therapeutic procedures of intraosseous lipoma. METHODS: From June 1986 to January 2016, 19 patients with intraosseous lipoma were treated including 12 males and 7 females, aged from 24 to 76 years, a predilection aged was from 40 to 50 years in 13 cases. Symptoms presented with pain or swelling in 15 patients, the lesions were found incidentally in 3 patients, another case was bone defect lipoma replacement after curettage of bone cyst for 4 years. On plain X-ray flims of all bones showed a well-circumscribed radiolucent area. Diagnosis was established with CT or MRI. Among them, 16 cases were treated by surgical operation, 3 cases were treated by concervative treatment. All patients' clinical data, histologic findings and X ray, CT and MRI were analysed. RESULTS: Total 19 patients were followed up from 9 to 42 months with an average of 15 months. There was no local tumor recurrence in 16 patients after excising the tumors, the remaining 3 patients showed no enlargement of the lesion. CONCLUSIONS: Surgical intervention is considered as an unnecessary in the patients diagnosied intraosseous lipoma by MRI or CT. Patients with symptomatic should adopt surgical treatment with curettage and bone grafting. PMID- 29349972 TI - [Current therapy progress on the recurrent patellar dislocation]. AB - Patients who suffer from the recurrent patellar dislocation mainly show the recurrent dislocation of patellar, giving way, most patients have the history of trauma or dysplasia of keen joint. Traditional therapies of recurrent patellar dislocation include medical retinaculum placation, lateral retinaculum release, tibial tubercle osteotomy, femoral trochleoplasty etc. In recent years, with the development of anatomical and biomechanical researches on medial patellofemoral ligament(MPFL), more and more experts focus on the role of MPFL played in preventing the patellar dislocation. The treatment of recovering and correcting patellar tracking through MPFL reconstruction has been increasing gradually. However, till now, there was no therapy which could heal the recurrent patellar dislocation completely. The specific therapies of recurrent patellar dislocation are combination therapies, decided according to the anatomical and biomechanical conditions of patients, for recovering the stability of patients' patellar, the lower limb alignment and the function of keen-joint. PMID- 29349973 TI - [Progress on surgical treatment for femoral head-preservering in the precollapse stage of femoral head necrosis]. AB - Osteonecrosis of the femoral head(ONFH), a refractory disease characterized by death of the osteocytes and the bone marrow due to inadequate blood supply caused by various mechanisms, usually leads to the collapse of the femoral head and malfunction of the hip joint. The crux is to diagnose ONFH early in the precollapse stage and prevent subsequent progression of collapsing through early interventions, thus delaying or avoiding the replacement of the hip joint. A number of joint salvaging operation treatments for early stage ONFH are available. However, there has been no consensus with regard to the ideal treatment. The main trend now is to unite core decompression with bone-grafting, tantalum rod, bone marrow mesenchymal stem cell (BMSC) and other treatments. Also there are ways of osteotomy altering the angle of the femoral neck to relocate necrotic tissue from the weight-bearing segment. The implanting of tantalum rod remains controversial and the advent of bone marrow mesenchymal stem cell (BMSC) holds huge potential. PMID- 29349974 TI - [Improvement of arthroscopic thecnique to be helpful for the accurate treatment of knee joint injury]. PMID- 29349975 TI - [Clinical research on the arthroscopic treatment for recurrent patellar dislocation by anatomical reconstruction of medial patellarfemoral ligament]. AB - OBJECTIVE: To observe the therapeutic effects of arthroscopic treatment for recurrent patellar dislocation by anatomical reconstruction of medial patellarfemoral ligament. METHODS: From June 2009 to December 2014, 25 patients with recurrent patellar dislocation were treated with anatomical reconstruction of medial patellarfemoral ligament surgery under arthroscopy. There were 10 males and 15 females, with an average age of 18.4 years old (ranged, 15 to 25 years old ). There were 15 patients who had a medical history of sports injury, 7 patients had a chronic impairment history, and the other 3 patients had the symptoms without obvious predisposing causes. Fourteen patients had injuries on the right knee and 11 patients had injuries on the left knee. All the patients suffered from patellar dislocation 3 to 10 times. After operation, the exercise of knee joint were performed postoperatively. The knee range of motion, Lysholm score, Kujala score, Insall criteria, Patellar apprehension test and patellar grinding test were observed to evaluate the clinical effects. RESULTS: All the patients were followed up, and the duration ranged from 12 to 48 months, with an average of 24.8 months. After surgery, all the wounds were healed excellent and there were no complications like surgical incision infection or patellar redislocation. The ranges of motion was increased from preoperative (105.40+/-5.93) degrees to postoperative(122.60+/-5.42) degrees . At the latest follow-up, the Lysholm scores were increased from preoperative 64.12+/-7.49 to postoperative 91.44+/ 5.53, the Kujala scores were increased from preoperative 57.88+/-5.10 to postoperative 92.44+/-2.69. According to the Insall criteria, 19 patients got an excellent result, 5 good and 1 fair. CONCLUSIONS: It has a satisfactory clinical therapeutic effect on anatomical reconstruction of medial patellarfemoral ligament under arthroscopy for the treatment of recurrent patellar dislocation. It is helpful for the relief of clinical symptoms and improvement of knee joint function. PMID- 29349976 TI - [Analysis on the arthroscopy efficacy with different irrigation times for the treatment of suppurative knee arthritis in elder patients]. AB - OBJECTIVE: To evaluate the curative effect of arthroscopy-assisted irrigation with different times for the treatment of suppurative knee arthritis in elder patients. METHODS: From October 2012 to October 2014, 23 old patients with suppurative knee arthritis were treated with arthroscopic debridement and continuous irrigation. All the patients were randomly divided into two groups:one week irrigation group (10 cases) and two-week irrigation group(13 cases). The ESR, CRP, recovery time of knee skin temperature, joint rang of motion and knee function were observed to evaluate the therapeutic effects. RESULTS: All the patients were followed up, and the mean duration was(13.3+/-2.3) months. No recurrence was observed. The CRP in both groups returned to normal level 2 weeks after operation. The ESR in two-week irrigation group returned to normal level 2 weeks after operation, while in one-week irrigation group it was still at a high level, and returned to normal level 3 weeks after operation; there was a statistical significance between these two groups(P<0.05). The recovery time of knee skin temperature after operation in two-week irrigation group was (13.4+/ 1.2) d on average(ranged, 8 to 17 d), which was less than(15.5+/-1.9) d on average(ranged, 10 to 20 d) in one-week irrigation group (P<0.05). The knee joint mobility of all patients 1, 3, 6 months after operation was significantly improved compared with those before surgery(P<0.05). The knee joint mobility of patients in two-week irrigation group was better than that in one-week irrigation group at the first month after operation(P<0.05);but there were no significant differences between these two groups 3, 6 months after operation. The Lysholm score of all patients 1, 3, 6 months after operation was significantly improved compared with those before surgery(P<0.05). The Lysholm score of patients in two week irrigation group was better than in one-week irrigation group at the first month after operation(P<0.05);but there were no significant differences between these two groups 3, 6 months after operation. All the patients had stable knee functions 3 months after operation. According to the Lysholm scale, 3 patients got an excellent result, 6 good and 1 poor in one-week irrigation group 6 months after operation;5 patients got an excellent result, 7 good and 1 poor in two-week irrigation group;there was no significant differences between these two groups. CONCLUSIONS: Treatment of suppurative knee arthritis using arthroscopy has such advantages as minimal invasion and complete debridement, which is helpful to attenuate inflammation and regain knee function. It is suggested that the irrigation should be prolonged for two weeks postoperatively. PMID- 29349977 TI - [Therapeutic effects of internal drainage by expanding arthroscopic gastrocnemius semimembranosus bursa and cyst wall resection for the treatment of 41 patients with popliteal cysts]. AB - OBJECTIVE: To investigate the clinical curative effects of internal drainage by expanding arthroscopic gastrocnemius-semimembranosus bursa(GSB) and cyst wall resection for the treatment of popliteal cysts. METHODS: A retrospective analysis of patients from May 2011 to December 2015. Arthroscopic treatment for 41 patients with popliteal fossa cysts, 18 males and 23 females, aged from 34 to 67 years old, averaged 42.6 years old. All the patients had preoperative magnetic resonance imagings to confirm the diagnosis and identify the valvular opening(Gastrocnemius-Semimembranosus bursa, GSB), as well as the associated intra-articular pathology. All the popliteal cysts were unilateral, including 26 cases of right knees and 15 cases of left knees. Five patients had recurrent popliteal cysts, and all of them underwent initial open Surgery. The duration from initial surgery to the recurrence ranged from 6 to 17 months(averaged, 11 months). All the patients had underwent arthroscopic treatment of internal drainage by expanding GSB and cyst wall resection. According to the Rauschning and Lindgren classification, 5 cases were grade I , 30 cases were grade II and 6 cases were grade III. Preoperative Lysholm score, 83.19+/-6.12 (ranged form 73 to 95). RESULTS: The GSB structure was found in all patients with popliteal cysts during operation, including cartilage degeneration in 33 cases, medial meniscus injury in 27 cases, lateral meniscus injury in 7 cases, free body in 8 cases, pigmented villonodular synovitis in 2 cases, and synovial chondromatosis in 3 cases. There were no complications related to vascular, nerve or surgical incision. All the patients were followed up, and the duration ranged from 8 to 27 months, with an average of 18 months. No recurrence of cysts was found. According to the Rauschning and Lindgren classification, there were 9 cases of grade 0, 27 cases of grade I , 4 cases of grade II, 1 case of grade III. Postoperative Lysholm score:91.32+/-4.26(ranged from 82 to 98). CONCLUSIONS: Arthroscopic internal drainage by expanding GSB and cyst wall resection surgery in the treatment of popliteal cysts has the advantages of less trauma, faster recovery and low relapse rate, which has a good short-term effect. PMID- 29349978 TI - [Correlation of medial compartmental joint line elevation with femorotibial angle correction and clinical function after unicompartmental arthroplasty]. AB - OBJECTIVE: To study the correlation of postoperative femorotibial angle with medial compartmental joint line elevation after unicompartmental arthroplasty(UKA), as well as the correlation of joint line elevation with the clinical function by measuring radiological joint line. METHODS: A retrospective study of 56 patients from July 2012 to August 2015 was performed. The mean body mass index (BMI) was 23.5 (ranged, 18.3 to 30.1). The standing anteroposterior radiographs of these patients were assessed both pre-and post-operatively, and the knee function was evaluated according to HSS grading. The correlation between postoperative femorotibial angle(FTA) and joint line elevation was analyzed as well as the correlation between joint line elevation and the clinical function. RESULTS: The mean medial joint line elevation was (2.2+/-2.0) mm(ranged, -3.3 to 7.0 mm), and the mean FTA correction was (2.3+/-3.0) degrees (ranged, -4.5 degrees to 9.6 degrees ). The mean follow-up period was 12.2 months. There was a significant correlation between in joint line elevation and FTA correction(P<0.05), while there was no significant correlation between joint line elevation and the clinical function(P>0.05). CONCLUSIONS: There was a significant correlation between medial compartmental joint line elevation and FTA correction after UKA, and the proximal tibial osteotomy was critical during the procedure. There was no significant correlation between joint line elevation and the clinical function, which may be related to the design of UKA prosthesis. PMID- 29349979 TI - [Capsular-enhanced repair with suture anchors in bipolar hemiarthroplasty for the treatment of femoral neck fractures in elderly patients]. AB - OBJECTIVE: To evaluate the efficacy of capsular-enhanced repair with suture anchors in bipolar hemiarthroplasty for the treatment of femoral neck fractures in elderly patients. METHODS: A retrospective study was designed. From June 2009 to June 2016, 53 senile patients (54 hips)with femoral neck fracture were treated operatively in Mianyang central hospital (Sichuan, China). There were 21 males and 32 females, ranging in age from 80 to 97.5 years old (mean, 84.7 years old). There were 11 hips of Garden type II, 26 hips of Garden type III and 17 hips of Garden type IV. All the patients underwent bipolar hemiarthroplasty with enhanced repair of hip capsular. The hip joint was opened by a T shaped incision over posterior capsule. The posterior hip capsular and short external rotators were repaired particularly after the bipolar prostheses were implanted. Surgical time, intra-operative blood loss, mean hospitalization time, deep venous thrombosis, mortality, hip dislocation, pain, periprosthetic fracture, and other complications were recorded. The functional outcome was evaluated using the Harris Hip Score at the last follow-up. RESULTS: The 53 patients (54 hips) were evaluated during the hospitalization period and a mean follow-up period of 11.5 months(ranged, 3 to 36 months). No dislocation, incision infection and periprosthetic fracture appeared in this group. The mean surgical time was 65 minutes(ranged, 50 to 95 min). The mean intra-operative blood loss was 213 ml(ranged, 100 to 420 ml) and the mean hospitalization time was 13.3 days(ranged, 5 to 27 days). Two patients with deep vein thrombosis, one patient with pulmonary embolism and 10 patients with venous plexus thrombosis of calf muscle were diagnosed postoperatively. The rate of venous thrombosis was 24.53% (13/53). The patient with pulmonary embolism died 8 days after operation and the other 3 patients died from heart failure 4, 6 and 7 months after operation respectively. The mortality during first year after hemiarthroplasty was 7.55% (4/53). At the latest follow-up, 42 patients (43 hips)had no pain, 9 patients had mild pain, and 2 patients had moderate pain. No patients were non-ambulatory. The mean Harris Hip Score was 91.25+/-8.39, functional outcome was excellent in 44 hips, good in 5, and fair in 5. CONCLUSIONS: The bipolar hemiarthroplasty with capsular enhanced repair with suture anchors is effective in reducing postoperative complications of prosthesis dislocation. PMID- 29349980 TI - [Clinical analysis on arthroscopic debridement for the treatment of early infection after total knee replacement]. AB - OBJECTIVE: To compare the clinical effects of arthroscopic debridement versus open debridement on controlling and treatment of infection after total knee replacement. METHODS: From October 2009 to September 2016 in three hospitals, 11 patients with 11 joints which were infected after total knee replacement were randomly divided into two groups:5 cases in arthroscopy group and 6 cases in routine group. Patients in arthroscopy group were treated with arthroscopic debridement to remove the necrotic tissues, then closed-type irrigation with sensitive antibiotics by using two sebific ducts were performed continuously for 2 or 3 weeks until the flushing fluid became clear for 3 or 5 days;other 6 patients in routine group were treated with open surgical debridement and the following procedures in keeping with those in the arthroscopy group. Operation time, blood loss and incision length were recorded during the operation, and pain scores were recorded on the 1st, 3rd and 7th day after the operation. The curative effects were evaluated according to the Hospital for Special Surgery score system. RESULTS: The local and general symptoms of the 11 patients disappeared, and the test outcomes of biochemistry, blood and synovial fluid were normal. All patients were followed up, and the duration ranged from 6 to 18 months. Infection recurrences were observed in 1 case of arthroscopy group and 2 cases of routine group 3 months later after operation, and all these patients who underwent the second time operation with arthroscopic debridement were cured. According to the Hospital for Special Surgery score system, 3 cases obtained excellent result, 2 good, no poor and bad cases in arthroscopy group;3 cases obtained excellent result, 1 good, 1 poor and 1 bad in routine group. CONCLUSIONS: If the sensitive antibiotics can be found for the infected joints without obvious destruction of bone and no prosthesis loosening, it has a better therapeutic effect by using arthroscopic debridement combined with continuous drainage and irrigation. The method has a better curative effect with smaller trauma. PMID- 29349981 TI - [Clinical results in early and mid term of using the S-ROM femoral stem in revision]. AB - OBJECTIVE: To investigate and the clinical effect of S-ROM modular stem in femur reconstruction in hip revision arthroplasty. METHODS: From January 2008 to January 2016, 21 patients received revision hip arthroplasties using S-ROM stems. There were 5 males and 16 females with an average of 48.33 years old(range, 29 to 73 years old). There were 13 cases caused by aseptic loosening, 4 cases by infection, 2 cases by nonunion of sub-tuberosity osteotomy, 1 case for repeated dislocation, 1 case for traumatic great trochanter fracture. Primary THA reasons:12 cases for DDH(9 cases for Crowe IV), 5 cases for femoral neck fracture, 2 cases for necrosis of femoral head, 2 cases for proximal femoral deformity caused by early infection. The femur bone defects included Paprosky II in 11 cases, IIIa in 9, and IIIb in 1. Harris hip score , pain score and hip flexion were recorded before and after operation. The subjective satisfaction was recorded at the last follow-up. RESULTS: The operation time and blood loss were 189 min(125 to 290 min) and 867 ml (200 to 2 000 ml). At the final followup, the pain score improved from (17.14+/-9.56) points preoperatively to (41.71+/-2.03) points (t=11.42, P=0.00). The function score improved from (24.01+/-11.02) points preoperatively to (49.95+/-5.38) points (t=9.73, P=0.00). Harris hip score improved from (41.15+/-14.81) points preoperatively to(91.67+/-5.83) points(t=15.33, P=0.00). The degree of hip flexion increased from (93.10+/-27.27) points preoperatively to (121.90+/-16.62) points at the last follow-up (t=4.59, P=0.00). The mean subjective satisfaction was 9.48(10 points system), 14 of which were completely satisfactory. The last follow-up hip X-ray showed 21 cases of bone ingrowth, and other femoral stem without loosening or sinking sign significantly. There were 5 cases with bone anchor syndrome around proximal femoral cuff. There were 5 cases of proximal femur fracture, 3 cases of lesser trochanter fracture, 2 cases of greater trochanter fracture intra-operatively. Due to femoral canal stenosis, there were 4 cases of pre-tied wire at lesser trochanter to prevent fractures. There was 1 case of traumatic femoral fracture around stems with a distal oblique fracture, open reduction and locking plate fixation was performed. Other patients had no nerve stretch injury, dislocation, infection and lower limb deep vein thrombosis and other complications at the final follow-up. CONCLUSIONS: S-ROM prosthesis has satisfactory results in hip revision arthroplasty with Paprosky II and III femoral defects. Especially for patients with Crowe IV DDH and other proximal femoral deformities, it is possible to adapt to the medullary cavity morphology. Excellent initial stability, less complications and long-term biological fixation can be achieved with S-ROM in femur revision. PMID- 29349982 TI - [Effects of tranexamic acid combined with temporary drain clamping on postoperative blood loss in total knee arthroplasty]. AB - OBJECTIVE: To evaluate the efficacy and safety of one dose tranexamic acid combined with temporary drain lamping in primary unilateral total knee arthroplasty. METHODS: Total 160 patients undergoing unilateral primary total knee arthroplasty between January 2012 and December 2013 were randomly divided into four groups(40 cases in each group):group A (the drain was clamped for 2 hours after the operation and the patients received 20 ml physiological saline), group B(the drain was clamped for 2 hours after the operation and the patients received 10 ml tranexamic acid and 10 ml physiological saline), group C (the drain was clamped for 4 hours after the operation and the patients received 20 ml physiological saline) and group D(the drain was clamped for 4 hours after the operation and the patients received 10 ml tranexamic acid and 10 ml physiological saline). The postoperative hemoglobin level, maximum hemoglobin loss, wound drainage, blood loss, the volume of blood transfusion, the number of patients inquiring blood transfusion, venous thrombo embolism rate, and ecchymosis rate were recorded and compared among the four groups. RESULTS: There was no incision infection, severe hypoxia, and symptomatic pulmonary embolism in these groups. There were significant differences in hemoglobin content one day after operation in each group(F=12.26, P=0.000), in the hemoglobin content 7 days after operation in each group(F=20.74, P=0.000), in postoperative drainage in each group(F=38.71, P=0.000);in the amount of invisible red blood cell loss in each group(F=83.41, P=0.000), and in total red blood cell loss in each group(F=102.68, P=0.000). Color Doppler ultrasound examination found that the total incidence of VTE was 3%(5/160) and there were no significant differences in each group(P=0.892). There were no significant differences in postoperative subcutaneous ecchymosis area>1% incidence(P=0.143). CONCLUSIONS: Topical tranexami acid treatment combined with temporary clamping of drain for 4 hours could reduce postoperative blood loss, blood transfusion, and ecchymosis rate without increasing the risk of thromboembolic event after total knee arthroplasty. PMID- 29349983 TI - [Treatment of posterior cruciate ligament avulsion fracture with rivet-assisted hollow nail:a case-control study]. AB - OBJECTIVE: To retrospectively investigate the clinical effect of the rivet assisted hollow screw in the treatment of posterior cruciate ligament avulsion fracture. METHODS: Total 49 patients with knee cruciate ligament avulsion fracture in the ending point of the ligament from January 2010 to December 2014 were divided into the treatment group and the control group. Thirty-one patients in treatment group were treated with rivet-assisted double cannulate nail, including 13 males and 18 females, ranging in age from 38 to 51 years old, with a mean of (40.6+/-5.1) years old; according to Meyers classification, 23 cases of type 2, 8 cases of type 3; 5 patients were caused by the low energy injury and 26 patients were caused by the high energy injury. Eighteen patients in control group were treated with double gold hollow screw fixation, including 5 males and 13 females, ranging in age from 36 to 52 years old, with an average age of (4.16+/-4.7) years old; according to Meyers classification, 14 cases of type 2 and 4 cases of type 3;2 patients were caused by the low energy injury and 16 patients were caused by the high energy injury. The operation time, postoperative complications, fracture healing time and the last AKS scoring system were compared between the two groups. RESULTS: All the patients were followed up, and the duration ranged from 12 to 24 months, with an average of 14.2 months. The patients in treatment group had no displacement of fracture fragments and internal fixation failure. The results of AKS score:pain was 48.1+/-1.5, activity was 21.3+/-2.7, stability was 20.9+/-2.5, walking ability was 47.3+/-1.9, under the stairs ability was 43.4+/-2.1, the total score was 190.7+/-2.9. There were 2 cases in control group had fracture fragment displacement and 1 patient had nail withdraw. The results of AKS score:pain was 40.1+/-2.2, activity was 20.1+/-0.2, stability was 18.1+/-3.2, walking ability was 46.3+/-1.7, under the stairs ability was 40.2 +/-1.3, the total score was 180.2+/-1.4. Therefore, the comparison of the above indicators, the results of the treatment group were better than those of the control group. CONCLUSIONS: Rivet-assisted hollow screw fixation in the treatment of cruciate ligament avulsion fracture in the ending, has some advantages such as follows:accurate reduction, less postoperative complications and better postoperative knee function recovery, therefore it is an effective way to treat posterior cruciate ligament avulsion fracture. PMID- 29349984 TI - [Risk factors analysis on wound complications after closed calcaneal frature operation using lateral extensive L-shaped incision]. AB - OBJECTIVE: To investigate the risk factors of wound complications after closed calcaneal fracture operation using a lateral extensive L-shaped incision and to explore the effective interventions to reduce the complications after incision. METHODS: Retrospective analysis of clinical data of 285 patients(315 calcaneal fractures) who underwent open reduction and internal fixation by using the lateral extensive L-shaped incision from January 2011 to January 2015. Eighteen factors which might cause the complications of calcaneal incision were compared by univariate analysis, and multiple Logistic regression analysis was performed for factors with statistically significances. RESULTS: Twenty-nine patients(30 calcaneus) had wound complications among all the 285 patients(315 calcaneus) after surgery, including 9 patients with incision redness, swelling, oozing or nonunion;16 patients with skin necrosis or incision rupture, 3 patients with soft tissue superficial infection, and 2 patients with osteomyelitis. Univariate analysis showed that fall height(P=0.017), diabetes (P=0.026), smoking(P=0.001), and operative time(P=0.003) were correlated with incision complications after surgery. Multivariate analysis showed that diabetes(P=0.029), smoking(P<0.001), and operative time(P=0.018) were risk factors for incision complications after operation. CONCLUSIONS: Preoperative smoking cessation, actively control of blood glucose and shortening the operation time by practicing can effectively reduce the incision complication after fracture surgery with the lateral extensive L shaped incision. PMID- 29349985 TI - [Risk factors analysis for low back pain in patients with multiple sclerosis]. AB - OBJECTIVE: To investigate musculoskeletal disorders and risk factors of low back pain in multiple sclerosis (MS) patients. METHODS: In this study, patients in our hospital with confirmed MS with an expanded disabilitystatus scale (EDSS) score between 4 to 7 were selected. Data of MS history, pain, musculoskeletal disorders, muscle strength and spasticity in lower limbs were collected. RESULTS: Among 190 patients, there were 61 males and 129 females, with an average age of(54.9+/-9.2) years old. The mean disease duration was(19.3+/-9.9) years, and the median EDSS score was 6. Forty-two patients were relapsing-remitting type, 45 patients were primary progressive type, and 93 patients were secondary progressive type. The most common musculoskeletal disorders were described as follows:knee osteoarthritis (15 cases), claw toe (13 cases) and genu recurvatum (12 cases). Seventy-nine patients with prevalence low back pain was higher than in patients with a progressive type(secondary: OR=2.958, P=0.007 9, primary(OR=2.629, P=0.039 8) and in patients who had a visual dysfunction at EDSS score(OR=1.411, P=0.012 4). The prevalence was reduced in male patients(OR=0.306, P=0.001 4). CONCLUSIONS: The progressive type of MS and visual dysfunction increased the risk of low back pain in these patients. PMID- 29349986 TI - [Observation of curative effects of musculoskeletal ultrasound-guided needle knife on the degenerative meniscus disease]. AB - OBJECTIVE: To observe the curative effect of musculoskeletal ultrasound-guided needle-knife on the degenerative meniscus disease, and to provide a new method in the treatment of degenerative meniscus disease. METHODS: Seventy-seven patients with degenerative meniscus disease treated in the Third Affiliated Hospital of Beijing University of Chinese Medicine from January 2015 to September 2015 were selected, including 30 males and 47 females, aged from 44 to 66 years old, with an average of 57.5 years old. VAS scores, Lysholm scores and distance of meniscal protrusion were analyzed and compared before treatment, 2 weeks and 1 month after treatment. The curative effect was summarized at last. RESULTS: The mean Lysholm scores were 51.63+/-15.26(before treatment), 77.13+/-11.82(2 weeks after treatment) and 87.56+/-8.65(1 month after treatment). The mean VAS scores were 7.080+/-1.574 (before treatment), 2.630+/-0.310(2 weeks after treatment) and 0.850+/-0.177(1 month after treatment). The mean of the distance of meniscal protrusion scores were 0.400+/-0.156 (before treatment), 0.298+/-0.140 (2 weeks after treatment) and 0.240+/-0.110 (1 month after treatment). VAS scores and Lysholm scores were improved significantly compared with preoperative results. The distance of meniscal protrusion showed an obvious improvement after treatment. CONCLUSIONS: The treatment of musculoskeletal ultrasound-guided needle knife has advantages of high accuracy position and excellent effectiveness for degenerative meniscus disease. The treatment provides safety operation and significantly improves quality of life in patients without any complications. PMID- 29349987 TI - [CT measurement and clinical application of double-row suture anchor reconstruction for the treatment of Tossy type III acromioclavicular joint dislocation]. AB - OBJECTIVE: To study feasibility and reliability of reconstruction of the acromioclavicular ligament with double-row suture anchor for the treatment of acromioclavicular joint dislocation through coracoid coronal CT measurement, and to provide a new operation method for treating acromioclavicular joint dislocation. METHODS: Total 60 healthy people received CT examination of shoulder joint, including 30 males and 30 females, ranging in age from 18 to 50 years old. The coronal width, thickness and 20 degree camber angle in the medial part of the toot of coronal were measured using CT scan. The results were applied to clinical treatment for 12 patients with acromioclavicular joint dislocation of Tossy III type. RESULTS: The width in the medial part of the root of the coracoid was(17.65+/-1.82) mm(left side) and (17.67+/-1.80) mm(right side) in males; (16.55+/-1.78) mm(left side) and (16.52+/-1.74) mm (right side) in females. The vertical thickness of the roots of the coracoid: (13.11+/-2.11) mm(left side) and (13.16+/-2.09) mm(right side) in males;(12.79+/-2.21) mm(left side) and (12.76+/ 2.19) mm (right side) in females. The thickness of 20 degrees camber angle of the coracoid roots: (16.32+/-1.74) mm (left side) and (16.30+/-1.69) mm(right side) in males; (15.68+/-1.44) mm(left side) and (15.67+/-1.43) mm(right side) in females. Total 12 patients were treated with anchor nail with extraversion 20 degrees. The postoperative X-ray films showed bone anchors were located in the coracoid process, no bone splitting. CONCLUSIONS: Double-row suture anchor of 5 mm diameter nails can be placed into coracoid with extraversion 20 degrees, which is safety. PMID- 29349988 TI - [Comparison of analgesic effects between multimodal and patient-controlled intravenous analgesia in patients with rheumatoid arthritis in the perioperative period of total knee arthroplasty]. AB - OBJECTIVE: To compare the analgesic effect between multimodal and patient controlled intravenous analgesia(PCIA) in patients with rheumatoid arthritis(RA) in the perioperative period of knee joint replacement. METHODS: From June 2015 to June 2016, 40 RA patients undergoing total knee arthroplasty were randomly divided into two groups. There were 20 patients in PCIA group, including 3 males and 17 females, with an average age of(59.6+/-2.3) years old, who received controlled instillation of sufentanil analgesia controlled by an intravenous analgesia pump. There were 20 patients in multiple model analgesia group, including 2 males and 18 females, with an average age of(56.3+/-1.3) years old, who were treated with continuous femoral nerve block, local injection of knee joint and combined buprenorphine patches. The VAS score and the incidence of adverse reactions and HSS score were compared between the two groups after operation. The advantages and disadvantages of the two modes of analgesia were evaluated. RESULTS: On the 6 th and 24 th hours after surgery, the VAS scores of the multimodal analgesia group were significantly lower than those of the PCIA group(P<0.01). On the 48 th hour after surgery, the VAS scores was significantly lower in the multimodal analgesia group than those in PCIA group(P<0.000 1), both in the state of motion and at rest. On the 1 st week after surgery, the HSS score of the multimodal analgesia group was significantly higher than that in the PCIA group(P<0.000 1). The pain score and the degree of activity in HSS score of the multimodal analgesia group were better than those in PCIA group (P<0.05). The functional score of multimodal analgesia group was significantly better than that of PCIA group(P<0.01). But there was no significant difference in muscle strength scores between two groups. CONCLUSIONS: Multimodal analgesia is an ideal analgesic plan for total knee arthroplasty TKA patients with RA in perioperative period, which has good effects and little adverse reaction. PMID- 29349989 TI - [Artificial radial head replacement for the treatment of comminuted fractures of the radial head]. AB - OBJECTIVE: To assess the clinical effects of artificial radial head prosthesis replacement for the treatment of comminuted fracture of the radial head. METHODS: From June 2011 to June 2015, 25 patients with radial head comminuted fracture were treated with artificial radial head replacement, including 10 males and 15 females, ranging in age form 24 to 61 years old(mean, 40 years old). The functional recovery of the patients suffering from limb and elbow in different periods, the activity degree of the elbow joint and the function of the elbow in the latest follow-up were compared. RESULTS: All the patients were followed up, and the duration ranged from 12 to 48 months, averaged 26 months. There were no complications such as infection, elbow instability, subluxation of the distal radioulnar joint, and myositis ossificans. The VAS, Broberg and Morrey elbow function score were improved 6, 9 months after operation compared with that 3 months after operation(P<0.05). There were significant differences in elbow flexion and extension, rotation activity between injured side and healthy side 3, 6, 9 months after operation(P<0.01), but no significant differences between injured side and healthy side at the latest follow-up(P>0.05). At the latest follow-up, according to Broberg and Morrey elbow function evaluation criteria, 16 cases got an excellent result, 7 good and 2 poor. CONCLUSIONS: It can maximize the recovery of elbow joint stability and quicken early functional exercise, prevent and reduce the occurrence of complications by using the artificial radial head replacement therapy to repair comminuted fracture of the radial head. The short-term curative effect is satisfactory, but the long-term effect needs further observation. PMID- 29349990 TI - [Experimentation of the relationship between medial or lateral patellar stabilizer and patellofemoral stabilization]. AB - OBJECTIVE: To study the contribution of medial or lateral stabilizer to the stability of the patella, to explore the function and effect of releasing the LPR clinically and to provide a biomechanical basis for the clinical treatment of patellar instability(PI). METHODS: The quadriceps femoris of 6 fresh human cadaver knees were loaded to simulate a normal condition of muscle strength. First the loading force was measured and recorded, which subluxated the patella with the different degrees of knee flexion. Intervention 1:released the medial patellar retinaculum(MPR) to simulate pathologic conditions, then repeated the above manipulates and recorded the loading force. Intervention 2:released the LPR furthermore to simulate clinical surgical treatment, then repeated the above manipulates and recorded the loading force. RESULTS: After releasing the MPR, the loading force which subluxated the patella were decreased obviously, and there were significant differences between the two groups(P<0.05). The above loading force was further decreased after the further release of LPR, but the difference was not significant(P>0.05). CONCLUSIONS: MPR plays an important role in maintaining the stability of the patella and in the normal trajectory of the patellofemoral joint. The attention should be paid to the repair or reconstruction of the MPR in the treatment for patella recurrent lateral dislocation subluxation. Releasing the LPR is not a best choice. PMID- 29349991 TI - [Effects of creating a tunnel through intercondylar fossa under arthroscopy for the treatment of complex tears at the medial meniscus posterior horn]. AB - OBJECTIVE: To discuss the advantages of the arthroscopic treatment for complex tears of the medial meniscus posterior horn by creating a tunnel passageway through the intercondylar fossa. METHODS: All 127 patients including 24 males and 103 females with complex tears at the medial meniscus posterior horn were reviewed. The age of all patients ranged from 45 to 78 years old, with an average of 67 years old. All 127 patients were treated with partial meniscectomy, in which 112 patients were treated with partial meniscectomy smoothly with three incisions (anterior medial incision, anterior lateral incision, high anterior lateral incision), and 15 patients were treated with four incisions (anterior medial incision, anterior lateral incision, high anterior lateral incision, posterior medial incision). Four aspects were estimated:whether the meniscus posterior horns could be observed totally and conveniently, whether tools could be pushed to target area conveniently, the damage of adjacent cartilages, operation time(the operation time of partial meniscectomy). RESULTS: Posterior horns of all patients were totally and conveniently observed, tools were conveniently pushed to the target area in all cases, and all the cases had no iatrogenic injuries at adjacent cartilages. The operation time of partial meniscectomy at posterior horns with three incisions ranged from 5 to 10 minutes, and it ranged from 10 to 30 minutes with four incisions. CONCLUSIONS: It is very convenient and fast of the arthroscopy to treat complex tears of the medial meniscus posterior horn by creating a tunnel through the intercondylor fossa. Iatrogenic injuries of the adjacent cartilages were prevented to the greatest extent. PMID- 29349992 TI - [Excision of necrotic and infected tissues combined with induced membrane and external fixator technique for the treatment of chronic osteomyelitis in tibia after fracture operation]. AB - OBJECTIVE: To investigate the clinical efficacy of excision of necrotic and infected tissues combined with induced membrane and external fixator technique to treat chronic osteomyelitis in tibia after fracture operation. METHODS: From June 2011 to June 2014, a total of 13 patients with tibia osteomyelitis were treated with excision of necrotic and infected tissues and external fixator technique in the first stage. There were 8 males and 5 females, ranging in age from 16 to 67 years old with an average of (37.3+/-14.3) years old. Within 6 to 8 weeks the induced membrane was formed and the induced membrane technique was applied to promote new bone forming in the second stage. RESULTS: Thirteen patients had no reinfection and achieved complete bone healing after 24 to 52 months follow-up. All the patients had satisfactory function. CONCLUSIONS: Excision of necrotic and infected tissues combined with induced membrane and external fixator technique to treat chronic osteomyelitis in tibia after fracture operation can provide satisfactory results. PMID- 29349993 TI - [Accurate osteotomy assisted by individualized navigation templates for the treatment of children cubitus varus]. AB - OBJECTIVE: To investigate the feasibility and accuracy of a new navigation template for osteotomy in cubitus varus based on computer assistant design and 3D printing technology. METHODS: The preoperative CT images of 15 children with cubitus varus from June 2015 to June 2016 were collected. According to the above data, the individual osteotomy navigate template match the distal humerus was designed by the software and printed by the 3D printer. Accurate osteotomy was performed with the assistant of the navigate template in the operation. Internal fixation of the osteotomy site was performed with 2 Kirschner wires. After surgery, a long arm plaster was applied with 20 degrees of elbow flexion. All the patients underwent radiographic and clinical evaluations before surgery and at the follow-up examination. RESULTS: During the operation, the navigate template with the individual design of 3D printing technology matched the bony markers of distal humerus. Accurate and simple osteotomy were performed along the resected surface of the navigation template. None of the cases required any kinds of revision surgery or had any complaint of cosmetic appearance. Average union time was 6.7 weeks(ranged, 6 to 8 weeks). Twelve patients got an excellent result and 2 got a good result according to the criteria described by Bellemore. There were no cases with complications of infection or ulnar nerve palsy or joint stiffness. CONCLUSIONS: With the help of 3D printing technology, the accurate osteotomy in cubitus varus assisted by individualized navigate template can be realized. This technology can restore normal anatomical structure of the elbow joint to the greatest extent. It is worthy of popularization and application. PMID- 29349994 TI - [Double hip and knee joint replacement for the treatment of rheumatoid arthritis with severe osteoporosis:a case report]. PMID- 29349995 TI - [Progress on graft and fixation options of arthroscopic anterior cruciate ligament reconstruction]. AB - Anterior cruciate ligament injury is one of the most common injuries of knee joint. Arthroscopic reconstruction of anterior cruciate ligament is the most commonly performed procedure. A variety type of fixation techniques are being used nowadays, such as interference screw, cortical suspension fixation and transfix, all of which can achieve good effect, with both advantages and disadvantages. However, the healing of reconstructed grafts is a complicated and long-term process, which can be affected by many factors. The mechanical properties of the grafts are also changed greatly in all stages of healing process, adding variables for the post-operative rehabilitation. PMID- 29349996 TI - [To implement minimally invasive endoscopic spinal surgery proactively and safely by mastering multiple techniques]. PMID- 29349997 TI - [Surgical outcome of percutaneous endoscopic technique for highly migrated disc herniation via three different approaches]. AB - OBJECTIVE: To analyze the clinical effects of percutaneous endoscopic technique via three different approaches for highly migrated lumbar disc herniation. METHODS: The clinical data of 68 patients underwent percutaneous endoscopic technique from June 2011 to June 2014 were retrospectively analyzed. There were 43 males and 25 females, aged from 11 to 77 years old with an average of (42.29+/ 15.92) years. The patients were divided into three groups according to different operative approaches, of them, 45 cases were by transforaminal approach (group A), 15 cases by translaminar approach (group B), and 8 cases by transpedicular approach (group C). There was 1 case in level L2,3, 12 cases in L3,4, 36 cases in L4,5, 19 cases in L5S1. The herniated disc was migrated superiorly in 23 patients, inferiorly in 45 patients. MRI were available to confirm migrated disc pre-and post-operatively. Operation time, loss blood volume, intraoperative and postoperative complications, time of back to work (postoperative recovery time) were recorded. Preoperative and postoperative VAS were used to evaluate low back pain and sciatica and JOA and MacNab criteria were used to evaluate functional recovery. RESULTS: All the operations were successful and all the patients were followed up from 12 to 40 months with an average of (18.0+/-15.9) months. Seven patients(3 cases in group A, 3 cases in group B, 1 case in group C) complicated with transient paraesthesia (hyperalgesia or hypesthesia), and the symptoms relieved after symptomatic treatment with neurotrophic medicine, at final follow up, no symptoms were left. One case in group B complicated with dura mater tearing during operation and it was untreated, there was no resulted complications such as headache and sinus tract of skin. In group A, B, C, the mean VAS score of sciatica improved from preoperative 6.93+/-1.34, 6.33+/-1.23, 6.13+/-1.73 to 0.80+/-0.87, 0.73+/-0.70, 0.38+/-0.52 at final follow-up; and JOA score improved from preoperative 9.09+/-2.62, 9.80+/-2.31, 10.50+/-2.93 to 26.82+/-1.53, 25.93+/-1.58, 26.50+/-1.51 at final follow-up, respectively(P<0.05). There was no significant difference among three groups(P>0.05). There was no significant difference in loss blood volume, postoperative recovery time among three groups. But operation time of group B was shorter than other two groups. According to MacNab criterion to assess the clinical effects, 42 cases got excellent results, 21 good, 5 fair. CONCLUSIONS: Percutaneous endoscopic technique is a safe and effective method for surgical treatment of highly migrated herniation. The decision of operative approach should be made by characters of anatomy. By tanspedicular approach the lesion could be found directly. However, it depends on good skill and equipment. PMID- 29349998 TI - [Comparative study of minimally invasive percutaneous pedicle screw fixation and open surgery in the treatment of thoracolumbar fractures]. AB - OBJECTIVE: To compare the clinical outcomes of minimally invasive percutaneous pedicle screw fixation and open surgery in the treatment of thoracolumbar fracture. METHODS: A retrospective study of patients who had undergone surgery for thoracolumbar fracture from June 2014 to December 2014 was performed. Sixty one cases were included and 29 cases were treated by minimally invasive percutaneous pedicle screw fixation (minimally invasive group) and 32 cases were treated by the traditional open pedicle screw fixation(open group). The differences in the total length of the incision, intraoperative fluoroscopy times, operative time, blood loss, the preoperative and postoperative visual analogue scale(VAS), postoperative bedridden time and hospital stay were compared. And the preoperative and postoperative anterior vertebral body height and Cobb angle of the kyphosis were also compared. RESULTS: Compared with the open group, the total length of incision was smaller and intraoperative blood loss was less, bedridden time and hospital stay were shorter, and pain of the wound was less in the minimally invasive group. Postoperatively, the anterior vertebral body height was retorted and the Cobb angle of the kyphosis was corrected obviously in both groups. But no significant difference in the imaging results was found between two groups(P>0.05). CONCLUSIONS: Minimally invasive percutaneous pedicle screw fixation has the similar fixation efficacy with open surgery in treating thoracolumbar fracture. However, it can avoid extensive muscle stripping, and obviously reduce the surgical incision, operative time, postoperative pain, bedridden time and hospital stay. According to the clinical efficacy, it is worthy of clinical application. PMID- 29349999 TI - [Percutaneous endoscopic lumbar discectomy combined with epidural injection for prolapsed lumbar disc herniation]. AB - OBJECTIVE: To assess the effect of percutaneous endoscopic lumbar discectomy (PELD) combined with epidural injection for prolapsed lumbar disc herniation(PLDH). METHODS: In this prospective randomized controlled study, the clinical data of 126 patients who had undergone a PELD because of a single-level PLDH from March 2014 to June 2015 were analyzed. There were 67 males and 59 females, ranging in age from 17 to 75 years old with an average of(41.0+/-13.5) years old, 9 cases were L3,4, 76 cases were L4,5 and 41 cases were L5S1. According to the random number table, the patients were randomized into two groups, with 63 patients in each group. Patients in group 1 were injected normal saline after PLED, patients in group 2 were subjected to an epidural injection of Diprospan, Lidocaine and Mecobalamine after PLED. All the patients were followed up from 6 to 20 months with the mean of 12.4 months. Complications, the postoperative hospital stay, the period of return to work, visual analogue scale (VAS) and Japanese Orthopedic Association (JOA) score were compared between two groups, and clinical outcomes were evaluated according to modified MacNab criteria. RESULTS: All the operations were successful, and no complications were found. The mean postoperative hospital stay and the period of return to work in group 1 were (4.61+/-1.25) days and (4.31+/-0.47) weeks, respectively, and in group 2 were (2.53+/-0.69) days and (3.14+/-0.52) weeks, there was significant differences between two groups(P=0.000). Postoperative VAS and JOA scores in two groups were obviously improved (P=0.000). At 1 day, 1 week, 1 month after operation, VAS, JOA scores in group 2 were better than that of group 1(P=0.000), and after 6 months, there was no significant difference between two groups(P>0.05). According to the modified MacNab criteria, 39 cases got excellent results, 21 good, 3 fair in group 1, and which in group 2 were 41, 20, 2, respectively, there was no significant difference between two groups(P=0.087). CONCLUSIONS: PELD is an mini-invasive technique for PLDH, it can fleetly reduce pain and improve function. And combination with epidural injection has the advantages of pain releasing and function improving in the short-term postoperative period, and it can decrease postoperative hospital stay and time of returning to work, and it is a safe and effective method. PMID- 29350000 TI - [Percutaneous vertebroplasty and open vertebroplasty for metastatic spinal tumor]. AB - OBJECTIVE: To explore the clinical application and therapeutic effect of percutaneous vertebroplasty(PVP) and open vertebroplasty for metastatic spinal tumor. METHODS: The clinical data of 126 patients with metastatic spinal tumor underwent surgery and obtained follow-up from January 2012 to March 2016 were retrospectively analyzed. These 126 cases were divided into two groups according to different operative methods. The metastatic tumor of 43 cases encroached vertebral canal oppressing spinal cord and nerve root, they were treated with open operation(open vertebroplasty group);and other 83 cases without obviously spinal cord or nerve root compression, or unfit for open operation, were treated with PVP (percutaneous vertebroplasty group) . VAS score, ECOG and Frankel grade were used to evaluate the pain and neurofunction in two groups.All out-hospital patients were followed up every 3 months for 1 time. X-ray, CT, MRI were examined in follow-up. RESULTS: A total of 112 vertebrae underwent PVP with the median surgical time of 50 min;VAS scores decreased significantly at 2 days after operation, which maintained till 1 month later; ECOG grade at 1 month decreased significantly;44 of 112 vertebrae suffered from asymptomatic bone cement leakage, no complications such as nerve injury or pulmonary embolism was found; the median survival time was 16 months. While for open vertebroplasty group, the median surgical time was 160 min and blood loss was 1 000 ml; postoperative VAS scores and ECOG grade at 1 month decreased significantly. Postoperative Frankel grade of 36 patients got improvement in 41 patients with spinal cord functional disturbance(87.8%); and 29 of 40 patients with incompleteness out of motor function were full recovery(76.3%); 12 cases (27.9%) occurred complications and the median survival time was 11 months. CONCLUSIONS: The different vertebroplasty treatments can be selected for patients with metastatic spinal tumor, which can relieve the pain, improve the nerve function, reconstruct the spinal stabilization, maintain the local control and raise the life quality. PMID- 29350001 TI - [Analysis of complications of percutaneous endoscopic lumbar discectomy]. AB - OBJECTIVE: To analyze the complications of lumbar intervertebral disc herniation treated with percutaneous endoscopic lumbar discectomy(PELD), and discuss how to avoid these complications. METHODS: The data of 132 patients with lumbar intervertebral disc herniation underwent PELD from October 2013 and June 2015 were retrospectively analyzed, including 85 males and 47 females with an average age of 42.9 years old. There were 6 cases of L3,4, 68 of L4,5 and 58 of L5S1. The incidences of intraoperative and postoperative complications were analyzed. RESULTS: There was spinal dura mater injury in 1 patient, but no cerebrospinal fluid leakage and nerve function deficit was found, the muscle strength did not decrease postoperatively and the incision healed well. Two patients converted to open surgery ultimately because of stenosis of the intervertebral foramen and adhesion between nucleus pulposus and spinal dura mater; two patients complicated with early recurrence(in 3 months);nucleus pulposus residue developed in 3 patients; all of them were treated by open surgery and got satisfactory results. One patient with heart disease history complicated with supraventricular tachycardia after surgery and 2 patients with the increased cerebrospinal fluid pressure during surgery. CONCLUSIONS: PELD have a steep learning curve, and the technology is a safe and effective method in treating lumbar disc herniation, but the beginners must have enough open surgery experience, and to grasp indications strictly. PMID- 29350002 TI - [Progress on laminoplasty in spinal canal disease]. AB - Surgery is the preferred method for the treatment of spinal canal disease, surgical method involves laminectomy and laminoplasty. The ideal spinal surgery not only should fully expose the spinal canal, completely resect the occupied position and remove the spinal cord compression, but also should maintain the stability of spinal biomechanics. Because of the different realization of clinician to safeguard and rebuild the spinal stabilization during opertion of spinal canal disease, and choice of surgical method and how to maintain the stability of spine biomechanics has become a hot of research in this field. Many scholars have studied it in order to reduce the influence of laminectomy on the spinal stability. Laminoplasty can directly relieve the nerve roots compression caused by increasing or reconstruction of vertebral canal volume, and allow the migration of spinal cord to dorsum and depart from disc and vertebral body. Laminoplasty not only can fully expose and decompress during operative, but also may prevent the postoperative spinal instability. In addition to these condition of extensive disease, severe bone destruction or combined with osteoporosis, the laminoplasty is the most ideal method for single spinal canal disease in theoretically. PMID- 29350003 TI - [Anatomical feature of lumbar and S1 pedicle in patients with thoracolumbar kyphosis secondary to ankylosing spondylitis]. AB - OBJECTIVE: To measure the correlative parameters of vertebral pedicles from L1 to S1 by CT scan in the patients with thoracolumbar kyphosis secondary to ankylosing spondylitis(AS) and disc degenerative disease(DDD), and analyze their anatomical difference in order to provide the selection and placement of pedicle screw during operation. METHODS: The clinical data of 30 male AS patients (AS group) with the mean age of(35.7+/-9.5) years (ranged, 23 to 51) and 30 male DDD patients (DDD group) with the mean age of(52.4+/-8.9) years(ranged, 39 to 64) underwent surgery in our institution from March 2012 to November 2014 were analyzed. The CT scans of lumbar and sacrum were performed before surgery. The parameters of vertebral pedicle from L1 to S1 were measured and compared, including pedicle width (PW), pedicle screw path length (PL), pedicle height (PH), pedicle transverse angle (EA), and pedicle inclined angle (FA). Paired sample t-test was used to detect the divergence in the above-mentioned data between left and right sides. In addition, results between two groups were compared using independent sample t-test. RESULTS: The study showed that a gradual increase in the average pedicle width both AS group and DDD group from L1 to S1. The average PW of AS group was bigger than DDD group in L5 and S1(P<0.05), it was(16.47+/-2.66) mm and (21.76+/-2.97)mm vs. (14.51+/-2.11)mm and (18.87+/ 2.14) mm respectively;the average PL of DDD group was smaller than AS group from L1 to S1(P<0.05); the both maximum of PL were in L3 segment; the average EA of AS group was smaller than DDD group from L1 to S1; the average FA of AS group was significantly smaller than DDD group from L3 to S1, (P<0.05), was(-2.88+/-10.24) degrees , (-7.88+/-10.22) degrees , (-7.70+/-10.40) degrees , (-5.15+/-10.25) degrees vs. (4.05+/-2.21) degrees , (7.79+/-4.38) degrees , (7.07+/-3.21) degrees , (12.62+/-3.21) degrees , respectively. CONCLUSIONS: Increasing the strength of internal fixation is feasible to insert the larger and bigger pedicle screws in low lumbar and S1 among AS patients, while the EA should be decreased properly and the direction on the sagittal plane should be adjusted. PMID- 29350004 TI - [Posterior debridement and bone grafting via intervertebral space combined with internal fixation for the treatment of lumbosacral tuberculosis]. AB - OBJECTIVE: To explore the clinical effects of posterior debridement, bone grafting via intervertebral space combined with internal fixation for the treatment of lumbosacral tuberculosis. METHODS: The clinical data of 32 patients with lumbosacral tuberculosis underwent the procedure of one-stage posterior intervertebral debridement, bone grafting and internal fixation from January 2007 to July 2013 were retrospectively analyzed. There were 17 males and 15 females, aged from 27 to 63 years with an average of (49.8+/-9.2) years. The course of disease was from 5 to 18 months with the mean of (10.7+/-3.2) months. There was involved the vertebral body of L5 in 1 case, the intervertebral space of L5S1 in 8 cases, and the vertebral body of L5 or S1 combined with intervertebral space of L5S1 in 23 cases. VAS, ESR, CRP, the lumbosacral angle, the height of intervertebral space of L5S1, and ASIA grade were used to evaluate clinical effects. RESULTS: All the patients were followed up from 18 to 39 months with an average of 21.6 months. Operative time was 120 to 260 min with the mean of 175 min, and intraoperative bleeding was 700 to 1 450 ml with the mean of 1 050 ml. VAS before operation was 8.4+/-1.6, then descended to 3.5+/-0.8(P<0.05) on the 3rd month after operation and redescended to the level of 1.7+/-0.6(P<0.05) at the final follow-up. The ESR and CRP before operation were (48.8+/-10.2) mm and (58.6+/-5.6) mg/L, respectively, then decreased to (35.6+/-6.9) mm and (22.5+/ 4.3) mg/L (P<0.05) at the 3rd month after operation and returned to the normal level at the final follow-up. The height of intervertebral space of L5S1 and lumbosacral angle before operation were (7.7+/-0.4) mm and (19.3+/-1.2) degrees , respectively, then improved to (10.3+/-0.3) mm and (22.4+/-1.5) degrees on the 3rd month after operation(P<0.05), and maintained such level, no obvious lost at later. According to ASIA grade, 8 cases were grade C, 19 were grade D, 5 were grade E before operation, and at final follow-up, 1 case still was grade D, others were grade E. CONCLUSIONS: The procedure of posterior debridement, bone grafting via intervertebral space combined with internal fixation is an effective and safe method in treating lumbosacral tuberculosis, it can effectively debride tuberculose focus, maintain the spinal stability, and improve the dysfunction with less complication. PMID- 29350005 TI - [Relationship between the prediction of the opening angle and the increased value of cross-sectional area in single open-door laminoplasty]. AB - OBJECTIVE: To evolve the formula of relationship between opening angle of laminoplasty and the increased value of cross-sectional area, and to predict the opening angle according to the opening size of lanminoplasty. METHODS: From January 2013 to December 2015, 26 patients underwent single open-door laminoplasty in C3-C7. Among them, 10 patients with ossification of posterior longitudinal ligament, there were 6 males and 4 females, aged from 39 to 58 years old with an average of 49.2 years; and 16 patients with cervical spondylotic myelopathy, there were 10 males and 6 females, aged from 40 to 58 years old with an average of 50.2 years. Through the changes of spinal canal shape between preoperation and postoperation to set up the regular geometric model, and to deduce the formula of the relationship between the opening angle of laminoplasty and the increased value of cross-sectional area, and predict the formula of opening angle. According to the preoperative and postoperative CT scan, the needed parameters were measured, and were substituted in the above formula to get the change of cross-sectional area before and after operation, predicting the opening angle of laminoplasty. The differences between the change of cross sectional area before and after operation, predictive the opening angle of laminoplasty and practical measured data were analyzed by statistical methods, thus to verify the feasibility of formula in practical application. RESULTS: All imaging data of 26 patients were obtained. There were significant differences in changes of cross-sectional areas in every patients (laminoplasty in C3 to C7) before and after operation in the same segment(P<0.01). The increasing extent in cross-sectional areas was gradually diminished following the opening angle increasing. There was no significant difference between the opening angle attained by formula and the data measured by software in the same segment(P>0.05). CONCLUSIONS: Increment of cross-sectional areas following C3-C7 laminoplasty can be accurately attained and the opening angle can also be predicted by a certain formula, which can help surgeons to attain the accurate opening angle and reduce the postoperative complications. PMID- 29350006 TI - [The shor-term clinical outcomes and safety of extreme lateral interbody fusion combined with percutaneous pedicle screw fixation for the treatment of degenerative lumbar disease]. AB - OBJECTIVE: To evaluate the early efficacy and safety of extreme lateral interbody fusion (XLIF) combined with percutaneous pedicle screw fixation for lumbar degenerative disease. METHODS: From January 2013 to June 2014, 13 patients with degenerative lumbar disease were treated with XLIF combined with percutaneous pedicle screw fixation, including 8 cases of lumbar instability, 5 cases of mild to moderate lumbar spondylolisthesis;there were 5 males and 8 females, aged from 56 to 73 years with an average of 62.1 years. All patients were single segment fusion. Operation time, perioperative bleeding and perioperative complications were recorded. Visual analogue scale (VAS) and Oswestry Disability Index (ODI) were used to evaluate the clinical efficacy. Interbody fusion rate was observed and the intervertebral foramen area changes were compared preoperation and postoperation by X-rays and CT scanning. RESULTS: The mean operation time and perioperative bleeding in the patients respectively was(62.8+/-5.2) min and(82.5+/-22.6) ml. One case occurred in the numbness of femoribus internus and 1 case occurred in the muscle weakness of hip flexion after operation, both of them recovered within 2 weeks. All the patients were followed up from 12 to 19 months with an average of 15.6 months. VAS was decreased from preoperative 7.31+/ 0.75 to 2.31+/-0.75 at final follow-up(P<0.05); ODI was decreased from preoperative (42.58+/-1.55)% to (12.55+/-0.84)% at final follow-up(P<0.05). At final follow-up, CT scanning confirmed 8 cases completely fused and 5 cases partly fused;the intervertebral foramen area was increased from preoperative (94.86+/-2.44)mm2 to (150.70+/-7.02)mm2(P<0.05). CONCLUSIONS: Extreme lateral interbody fusion combined with percutaneous pedicle screw fixation is an ideal method and can obtain early good clinical effects in treating lumbar degenerative disease. PMID- 29350007 TI - [The metabolic profilings study of serum and spinal cord from acute spinal cord injury rats 1H NMR spectroscopy]. AB - OBJECTIVE: To establish the rat model of acute spinal cord injury, followed by aprimary study on this model with 1H NMR based on metabonomics and to explore the metabonomics and biomarkers of spinal cord injury rat. METHODS: Twenty eight-week old adult male SD rats of clean grade, with body weight of (200+/-10) g, were divided into sham operation group and model group in accordance with the law of random numbers, and every group had 10 rats. The rats of sham operation group were operated without damaging the spinal cord, and rats of model group were made an animal model of spinal cord incomplete injury according to the modified Allen's method. According to BBB score to observate the motor function of rats on the 1th, 5th, and 7th days after surgery. Postoperative spinal cord tissue was collected in order to pathologic observation at the 7th day, and the metabolic profilings of serum and spinal cord from spinal cord injury rats were studied by 1H NMR spectroscopy. RESULTS: The hindlimb motion of rats did not obviously change in sham operation group, there was no significant difference at each time point;and rats of model group occurred flaccid paralysis of both lower extremities, there was a significant difference at each time; there was significant differences between two groups at each time. Pathological results showed the spinal cord structure was normal with uniform innervation in shame group, while in model group, the spinal cord structure was mussy, and the neurons were decreased, with inflammatory cells and necrotic tissue. Analysis of metabonomics showed that concentration of very low density fat protein (VLDL), low density fat protein (LDL), glutamine, citric acid, dimethylglycine (DMG) in the serum and glutathione, 3-OH-butyrate, N-Acetyl-L-aspartic acid (NAA), glycerophosphocholine (GPC), glutamic acid, and ascorbate in spinal cord had significant changes(P<0.05). CONCLUSIONS: There are significant differences in metabolic profile from serum and spinal cord sample between model group and sham operation group, it conduces to explain the changes of small molecular substances in serum and spinal cord tissue after spinal cord injury, this provides the research basis for targeted research on the role of metabolic markers in patients with acute spinal cord injury. PMID- 29350008 TI - [Surgical treatment for open tarsometatarsal joint injury]. AB - OBJECTIVE: To discuss the surgical method and clinical efficacy for open tarsometatarsal joint injuries. METHODS: From March 2011 to January 2015, 21 patients with open tarsometatarsal joint injuries were treated with stage-surgery method, including 14 males and 7 females with an average age of 45.6 years old ranging from 20 to 75 years. Injury site occurred in the left foot of 13 cases and right foot of 8 cases. Traffic injury was in 5 cases, crush injury in 6 cases, heavy crushing was in 10 cases. According to Myerson to classify for tarsometatarsal joint injury, 5 cases were type B2, 9 cases were type C1, and 7 cases were type C2. And according to Gustilo to typing for soft tissue injury, 5 cases were type IIB, 10 cases were type IIIA, 6 cases were type IIIB. Fracture healingand complications were observed after operation and clinical effects were evaluated according to the midfoot score of AOFAS. RESULTS: All the patients were followed up from 11 to 40 months with an average of 16.2 months. The fracture healing time was from 10 to 16 weeks with an average of 12.3 weeks. No complications such as deep infection, nonunion and osteomyelitis were found. Midfoot score of AOFAS at last follow-up was 83.0+/-14.9, 9 cases got excellent results, 8 good, 2 fair, 2 poor. Two patients complicated with severe traumatic arthritis once again underwent tarsometatarsal arthrodesis. CONCLUSIONS: For the treatment of open tarsometatarsal joint injury, reasonable debridement, comprehensive assessment for the soft tissue injury, correctly grasp the surgical indications and time of internal fixation, can reduce the incidence of deep infection and osteomyelitis. PMID- 29350009 TI - [Etiological analysis, preventional and therapeutical strategies for the unsatisfied cervical posterior decompression surgery]. AB - OBJECTIVE: To discuss the causes of unsatisfied cervical posterior decompression surgery and describe the overhauling strategies and precaution. METHODS: The clinical data of 14 patients required revision surgery were retrospectively analyzed, and these patients with unsatisfied effects were due to cervical posterior decompression surgery from January 2012 to December 2014. Overhauling reasons were analyzed and then different revision procedures were performed. The functions of cervical cord and ambulation were evaluated respectively by modified Japanese Orthopedic Association(mJOA) score and Nurick grade according to the course order:preoperative for the first time, pre-revision and at final follow up. Improvement rate of nerves function were calculated before and after operation for the first time, before and after revision. Above data were statistically analyzed by SPSS16.0 software. RESULTS: Reoperation reasons including 2 patients with the insufficiency width of laminectomy, 2 patients with the inadequate length of decompression, 2 patients with nerve root and spinal cord compression caused by fractured collapse, 4 patients with closed the door of vertebral lamina, 1 patient with less open-door angle, 2 patiens with ossification of posterior longitudinal ligament (1 case complicated with close the door), 2 patients with cervical spine kyphotic deformity aggravating (1 case complicated with close the door), 1 patient with nerve root canal stenosis caused by uncovertebral joint hyperplasia. Preoperative for the first time, pre-revision and at final follow-up, mJOA scores were 11.89+/-1.67, 13.11+/-1.09, 15.61+/ 0.59, and Nurick grades were 4.21+/-0.58, 3.57+/-0.51, 1.71+/-0.47, respectively. There was significant difference between final follow-up and preoperative for the first time, pre-revision(P<0.05). Improvement rate of nerve function was (22.33+/ 9.49)% with bad before and after operation for the first time, and (64.60+/ 9.88)% with good before and after revision, with statistical significance(P<0.05). CONCLUSIONS: Individualized revision surgery based on different causes for unsatisfied cervical posterior decompression can improve the function of spinal cord. Preoperative carefully analyzing the etiological factors, thoroughly decompression can reduce the revision rate. PMID- 29350010 TI - [A comparative study of outcome between single cage and double cages interbody fusion combined with pedicle screw fixation in treatment of isthmic spondylolisthesis]. AB - OBJECTIVE: To compare the clinical effects of isthmic spondylolisthesis by a single cage or double cages interbody fusion combined with pedicle screw fixation. METHODS: The clinical data of 172 patients with isthmic spondylolisthesis underwent surgery from March 2000 to August 2008 were retrospectively analyzed. All cases underwent posterior pedicle screw fixation and interbody fusion, 89 cases with single cage fusion and 83 cases with double cages fusion. In single cage group, there were 56 males and 33 females, aged from 18 to 63 years old with an average of(41.60+/-8.20) years;25 cases were in L4 segment and 64 cases were in L5;according to the Meyerding standard, 32 cases were I degree, 46 cases were II degree and 11 cases were III degree. In double cage group, there were 49 males and 34 females, aged from 20 to 65 years old with an average of(43.30+/-6.39) years;21 cases were in L4 and 62 cases were in L5;according to the Meyerding standard, 25 cases were I degrees, 45 cases were II degree, and 13 cases were III degree. The operative time, intraoperative blood loss, postoperative drainage volum, bone fusion rate, intervertebral space height and the improvement of clinical symptoms were compared between two groups. RESULTS: All the operations were successful and all patients were followed up for 18 to 83 months with an average of 4 years and 3 months. The operative time, intraoperative blood loss, postoperative drainage volume in single cage group were less than of double cage group(P<0.05). Two weeks after operation, the intervertebral space height was significantly increased in two groups(P<0.05), and there was no significant difference at the last follow-up between two groups. At 16 months after operation, all bone grafts of patients got bony fusion by X rays. At the last follow-up, there were no statistically significant difference in JOA, ODI and VAS score between two groups, no pedicle screw loosening and breaking were found. CONCLUSIONS: Single cage interbody fusion combined with pedicle screw fixation is as effective as with double cages interbody fusion in treatment of isthmic spondylolisthesis, it has the advantages of short operative time and less blood loss. PMID- 29350011 TI - [Treatment of ossification of ligamentum flavum complicated with lumbar spinal stenosis]. AB - OBJECTIVE: To investigate the imaging characteristic and operation outcome of ossification of ligamentum flavum with lumbar spinal stenosis. METHODS: January 2013 to January 2016, 9 patients with ossification of ligamentum flavum with lumbar spinal stenosis were treated, included 5 males and 4 females, aged from 51 to 63 years old with an average of 57 years old. All patients complained intermittent claudication and radiating pain at lower limb. The pathologic change regions examined by CT or MRI were as follows:2 cases in L4,5 and L5S1, 5 in L,, and 2 in L5S1. Four patients underwent simple laminectomy and 5 patients underwent laminectomy and discectomy, interbody fusion and internal fixation with pedicle screw. Clinical effects were evaluated according to JOA score, which items included subjective symptom, daily activity limitation, clinical sign and bladder function. RESULTS: No complications such as infection or nerve injury were found after operation. The follow-up period was from 12 to 60 months with an average of 24 months. The low back pain and radiating pain at lower limb improved significantly and walking distance approached normal at final follow-up;and JOA scores improved obviously. CONCLUSIONS: Ossification of ligamentum flavum has the special characteristic on CT scan, which decide the selection of operation method. The operative aim is effectively spinal decompression and rebuilding lower lumbar stability by minimally invasive surgery. PMID- 29350012 TI - [Application of debridement and bone autografting combined with proximal femoral anatomical plates for benign tumor in proximal femur]. AB - OBJECTIVE: To explore the clinical effects of debridement and bone autografting combined with proximal femoral anatomical plate in treating benign tumor in proximal femur. METHODS: From January 2010 to October 2014, 30 patients with benign tumor in proximal femur were treated with debridement, autogenic ilium, autogenic ilium and allogeneic bone implant, and anatomic plate fixation. Among them, there were 13 males and 17 females aged from 12 to 68 years old with an average of 42 years old. The courses ranged from 1 month to 2 years with an average of 9 months. MSTS scoring were observed and compared before and after operation, and also applied to evaluate lower-extremity function. X-ray was examined to evaluate healing of focus. Postoperative complications were observed. RESULTS: All patients were followed up from 12 to 48 months with an average of 29 months. MSTS score at the final following-up (27.06+/-2.59) was higher than preoperative (16.44+/-1.35), and there was significant difference(P<0.05). X-ray at the final following-up showed bone graft fusion, pathological fracture were recover consciously, internal fixation was well, no loosening, deformation and displacement occurred. One case occurred incision fat liquefaction and 1 patient with giant cell tumor of bone relapsed at 13 months after operation. CONCLUSIONS: Debridement and bone autografting combined with proximal femoral anatomical plate is an effective method in treating benign tumor in proximal femur. It could control tumor, relieve pain, promote function and prevent occurrence of pathologic fractures. PMID- 29350013 TI - [Closed reduction and percutaneous double K-wires internal fixation for the treatment of multisegmental fracture of humeral shaft]. AB - OBJECTIVE: To observe the clinical effects of closed reduction and percutaneous double K-wires internal fixation in treating multisegmental fracture of humeral shaft. METHODS: From January 2009 to April 2015, 27 patients with multisegmental fracture of humeral shaft were treated with closed reduction and percutaneous double K-wires internal fixation, including 10 males and 17 females, ranging in age from 26 to 81 years with an average of 52 years;the disease course ranged from 2 hours to 6 days with an average of 1.5 days. Operative time, intraoperative blood loss, hospital stay, fracture healed time, complications were observed and recovery of shoulder joint function was evaluated by Constant Murley shoulder score. RESULTS: All the patients were followed up from 12 to 24 weeks with an average of 16 weeks. Operative time was 20 to 40 min with an average of 28 min; intraoperative blood loss was 5 to 25 ml with an average of 10 ml;hospital stay was 3 to 5 days with an average of 3.5 days. All fractures got bone healing and healed time was 12 to 22 weeks with average of 14 weeks. Postoperatively 1 case complicated with wire tail bulging and local irritation symptoms, and the symptoms disappeared when the wire was removed out after the fracture healing; 1 case complicated with local infection after wire tail disengaging, and recovered through anti-septic treatment. According to the Constant-Murley standard of shoulder joint function, 10 cases got excellent results, 15 good, 2 fair, with scores of 89.1+/-2.7. CONCLUSIONS: Closed reduction and percutaneous double K-wires fixation for the treatment of multisegmental fractures of humeral shaft have advantages of simpler manipulating, less bleeding, less invasive, less complications, and shoulder and elbow joint can obtain good recovery. But closed reduction and percutaneous double K-wires internal fixation cannot be effective against rotation and provide axial stability, the immoblization with a sling or other auxiliary methods should be applied. PMID- 29350014 TI - [A case report of hysterical paralysis during kyphoplasty in a patient with compression fracture of lumbar vertebra]. PMID- 29350015 TI - [Application of finite element method in spinal biomechanics]. AB - The finite element model is one of the most important methods in study of modern spinal biomechanics, according to the needs to simulate the various states of the spine, calculate the stress force and strain distribution of the different groups in the state, and explore its principle of mechanics, mechanism of injury, and treatment effectiveness. In addition, in the study of the pathological state of the spine, the finite element is mainly used in the understanding the mechanism of lesion location, evaluating the effects of different therapeutic tool, assisting and completing the selection and improvement of therapeutic tool, in order to provide a theoretical basis for the rehabilitation of spinal lesions. Finite element method can be more provide the service for the patients suffering from spinal correction, operation and individual implant design. Among the design and performance evaluation of the implant need to pay attention to the individual difference and perfect the evaluation system. At present, how to establish a model which is more close to the real situation has been the focus and difficulty of the study of human body's finite element.Although finite element method can better simulate complex working condition, it is necessary to improve the authenticity of the model and the sharing of the group by using many kinds of methods, such as image science, statistics, kinematics and so on. PMID- 29350016 TI - Biomarkers of treatment efficacy in patients with chronic spontaneous urticaria. AB - Summary: Background. Currently there are no biomarkers useful to predict the future evolution and the therapeutic response in patients with chronic spontaneous urticaria (CSU). Objective. To review the available information on biomarkers that might be applied for the follow up of the response to guideline recommended therapies for CSU. Methods. A review of the medical literature on CSU potential clinical and laboratory biomarkers in PubMed and MEDLINE including the terms urticaria, chronic urticaria, chronic idiopathic urticaria, chronic spontaneous urticaria, antihistamines (AHs), omalizumab (OMA), cyclosporine (CyA), and treatment. Results. Clinical manifestations that were associated to poor responses to AHs were atopy, asthma, rhinitis / rhinosinusitis, thyroid disease, hypertension, higher disease activity and duration. Laboratory markers of AH resistance that have been reported include Complement C5a fraction, Autologous Serum Skin Test (ASST), Basophil Activation Test (BAT), D-dimer and LCN2 adipokine. Basophil Histamine Release Assay (BHRA), ASST, and basophil CD203c-upregulating activity in the serum correlated with favorable response to OMA, whereas disease duration and severity, BAT, BHRA, and D-dimer levels were associated with better responses to CyA. Conclusion. Some promising biomarkers useful for patient management in CSU, have been identified in the literature. There is, however, an urgent need of new, easy-to-perform markers that can be made widely available for the optimal care of patients suffering CSU. PMID- 29350017 TI - Skin prick test analysis reveals cross-sensitization to tomato profilin and grass pollen in nasobronchialallergic patients with history of tomato food allergy. AB - Summary: The association between grass pollen sensitization and food allergy to tomato is of great interest. We report here, the first such study in Indian population. We investigated 246 allergic rhinitis / asthma patients by diagnostic case history and skin prick test (SPT); grass pollen mix, tomato extract and purified tomato profilin were used for SPT. Tomato profilin was purified by affinity chromatography, and analyzed by HPLC (95% purity) and SDS-PAGE (14 kDa). We observed that 38% of the patients had sensitization to both grass pollen and tomato fruit, of which 92% were sensitized to tomato profilin. Among patients with a history of food allergy to tomato fruit, the association was more pronounced (66%). Tomato profilin appears to be an important cross-sensitizing panallergen in respiratory allergic patients in the Indian subcontinent. PMID- 29350018 TI - Allergy and high trait anxiety are related to increases in heart rate variability: results of naturalistic long-term design study. AB - Summary: A number of studies report heart rate variability (HRV) changes in allergic as well as high trait anxious people, and associations between allergic inflammation and trait anxiety. This study investigated HRV of 20 low anxious allergic, 19 healthy high trait anxious and 18 healthy low anxious, in naturalistic setting. On arranged research days, subjects performed measurements using portable ECG device and subjective self-assessment of perceived stress. Five repeated measurements data from each subject have shown increases in overall HRV, as well as HRV on respiratory frequencies in both allergy and high trait anxiety. Subject's sex was an important factor, because HRV increases in allergy were only apparent in women. Data from self-assessment show no differences in experienced stress attributable to allergy, only to trait anxiety. PMID- 29350019 TI - Cypress pollen allergy is responsible for two distinct phenotypes of allergic rhinitis different from other pollinosis. AB - Summary: Different phenotypes of allergic rhinitis have been identified based on the seasonality of the allergen involved. Within pollinosis, importance has to be paid to the responsible pollen species. Guidelines for clinical management are mostly based on studies performed in patients with grass pollen allergy. Only few data is available on tree pollen allergy and more specifically on cypress pollen allergy. We focused on the clinical and biological features of cypress pollen allergy to determine whether it is associated with a specific phenotype of allergic rhinitis or not. Our results suggest that cypress pollen can be responsible for two distinct phenotypes of rhinitis, both different from other pollinosis. In the most common phenotype, cypress pollen was not responsible for bronchial hyperresponsiveness or systemic inflammation. Close attention has to be paid to the allergen involved in allergic rhinitis. Different phenotypes leading to different pharmacological strategies may apply. PMID- 29350020 TI - Cutaneous drug reactions to antiepileptic drugs and relation with HLA alleles in the Turkish population. AB - Summary: Background and objective. Many studies have shown associations between HLAB*15:02, HLA-A*31:01 and carbamazepine (CBZ)-induced delayed cutaneous hypersensitivity reactions. The aim of this study is to evaluate a possible association between delayed cutaneous reactions to antiepileptic drugs (AEDs) and certain HLA-A and HLA-B alleles in the Turkish population. Methods. The study consisted of 3 groups: Group I (reactive group) included the patients who had documented delayed cutaneous reactions to any antiepileptic drug. Group II (non reactive group) included the patients who have been on antiepileptic treatment at least for three months without any adverse reactions. Group III consisted of healthy subjects. The HLA-A and B alleles were analyzed in all groups. Results. Forty patients (29 female) had experienced different hypersensitivity reactions due to AEDs: maculopapular exanthema (26 patients), Stevens-Johnson syndrome (6 patients), drug rash with eosinophilia and systemic symptoms (7 patients), toxic epidermal necrolysis (1 patient). Lamotrigine (11) and CBZ (10) were the most common culprit drugs involved in the reactions. The HLA-B*15:02 was not present in any of the study groups. However, HLA-B*35:02 was found in 4 patients from the reactive group, while it was not observed in non-reactive patients and was detected in only one healthy subject (p = 0.021). Conclusion. Although our preliminary results did not indicate a strong allele association with AED hypersensitivity, HLA-B*35:02 appears to be a candidate allele for MPE / DRESS / DIHSS induced by AED's in Turkish population. Further studies with a larger sample size may result in more comprehensive data about the genetic tendency for AED hypersensitivity in the Turkish population. PMID- 29350021 TI - Bodybuilding protein supplements and cow's milk allergy in adult. AB - Summary: We report a case of a previously healthy 24-year-old man with a 3-month history of gastrointestinal symptoms during exercise and also few minutes after the ingestion of cow's milk (CM) without exercise. He reported the ingestion of a blend of hydrolyzed whey and casein proteins for bodybuilding for the last 2 years. The in vivo tests showed positivity to CM, alpha-lactalbumin, beta lactoglobulin and casein extracts, and also to the protein supplement. The serum specific IgE was positive for CM, beta-lactoglobulin and alpha-lactalbumin. The in vivo and in vitro tests results suggested an IgE-mediated CMA. Adult-onset CMA has been rarely reported, and to our knowledge this is the first case possibly related to bodybuilding supplements. The authors theorize that the presentation of large amounts of proteins in the gastrointestinal tract may favor sensitization. PMID- 29350022 TI - An unusual case of positive sIgE to Galactose-alpha-1,3-galactose from South Italy. AB - Summary: We report the case of a 38-year-old man who was bitten several times during his life by a tick. He didn't report any previous history of anaphylaxis after the ingestion of red meat. The serum specific IgE showed positivity to alpha-Gal. The proximity of the bits didn't increase the titer of IgE antibodies to alpha-gal. We could hypothesize that the frequency of the exposure to the tick Corresponding author bites and the amount of tick bites during his lifetime induced a sort of tolerance in this patient. PMID- 29350023 TI - Erratum to: Plasma betaine concentrations correlate with plasma cortisol but not with C-reactive protein in an elderly population PMID- 29350025 TI - Synthesis, Spectroscopy, and Morphology of Tetrastilbenoidmethanes. PMID- 29350024 TI - Accurate Quantification of Radiosulfur in Chemically Complex Atmospheric Samples. AB - An ultralow-level liquid scintillation counting (LSC) technique has been used in measuring radiosulfur (cosmogenic 35S) in natural samples. The ideal half-life of 35S (~87 days) renders it a new way to examine various biogeochemical problems. A major limitation of the technique is that complex chemical compositions in atmospheric samples may lead to color quenching of LSC cocktails, a serious problem prolonging the pretreatment time (>1 week) and hampering the accurate determination of 35S. For application of the technique where many of the most important atmospheric chemical processes are examined, significant interferences arise and accurate analysis in small samples is not possible. In this study, we optimized the LSC method to minimize/eliminate color quenching in high sensitivity 35S measurements. The analytical performance of this new method was evaluated using control laboratory experiments and natural aerosol samples. Results show that the new method offers comparable accuracy as the traditional method for normal environmental samples [bias: <+/-0.03 disintegrations per minute (DPM)] and significantly shortens the pretreatment time to less than 3 days. For samples that were heavily contaminated by color-quenching agents, the accuracy of this new method is notably higher than that of the traditional method (maximum bias: -0.3 vs -1.5 DPM). With the growing use of radiosulfur in the field of Earth and planetary sciences, the accurate determination of 35S would provide a reliable field-based constraint for modeling 35S production in the atmosphere and allow a wide range of atmospheric, hydrological, and biogeochemical applications. PMID- 29350026 TI - Steric and Acidity Control in Hydrogen Bonding and Proton Transfer to trans W(N2)2(dppe)2. AB - The interaction of trans-W(N2)2(dppe)2 (1; dppe = 1,2 bis(diphenylphosphino)ethane) with relatively weak acids (p-nitrophenol, fluorinated alcohols, CF3COOH) was studied by means of variable temperature IR and NMR spectroscopy and complemented by DFT/B3PW91-D3 calculations. The results show, for the first time, the formation of a hydrogen bond to the coordinated dinitrogen, W-N=N...H-O, that is preferred over H-bonding to the metal atom, W...H-O, despite the higher proton affinity of the latter. Protonation of the core metal-the undesirable side step in the conversion of N2 to NH3-can be avoided by using weaker and, more importantly, bulkier acids. PMID- 29350027 TI - Evaluation of Drug Exposure and Metabolism in Locust and Zebrafish Brains Using Mass Spectrometry Imaging. AB - Studying how and where drugs are metabolized in the brain is challenging. In an entire organism, peripheral metabolism produces many of the same metabolites as those in the brain, and many of these metabolites can cross the blood-brain barrier from the periphery, thus making the relative contributions of hepatic and brain metabolism difficult to study in vivo. In addition, drugs and metabolites contained in ventricles and in the residual blood of capillaries in the brain may overestimate drugs' and metabolites' concentrations in the brain. In this study, we examine locusts and zebrafish using matrix assisted laser desorption ionization mass spectrometry imaging to study brain metabolism and distribution. These animal models are cost-effective and ethically sound for initial drug development studies. PMID- 29350028 TI - Anisotropic Electronic Characteristics, Adsorption, and Stability of Low-Index BiVO4 Surfaces for Photoelectrochemical Applications. AB - Many experimental results reveal different activities among different low-index surfaces of photocatalysts. The current investigation focuses on the theoretical understanding of the electronic characteristics, surface activity, and stability of different low-index surfaces of BiVO4 toward water splitting using first principle calculations. The results indicate that BiVO4 has four types of low index surfaces, namely, (010)T1, (010)T2, (110)T1, and (111)T1. The different band edge potentials of the surfaces, resulting from the variation of the electrostatic potential, lead to a higher oxidation ability for (010)T1 and (010)T2 than for (110)T1 and (111)T1 surfaces. The electrons prefer to accumulate on (010)T1 and (010)T2 surfaces, whereas holes like to accumulate on (110)T1 and (111)T1 surfaces during a photocatalytic process. Moreover, investigation on the adsorbed intermediates during the water-splitting process indicates that the oxygen evolution reaction on BiVO4 surfaces is mainly dominated by the reaction OH* <-> O* + H+ + e-, and (110)T1 and (111)T1 surfaces are energetically more favorable as photoanodes for water splitting than (010)T1 and (010)T2. Furthermore, the BiVO4 surface as photoanodes tend to be unstable and can easily be corroded with or without the presence of an oxidative environment, however, there is an exception for the BiVO4 (010)T1 and (010)T2 surfaces, which are thermodynamically stable in the solution when there are no strong oxidative species. These results provide important insights into the anisotropy behaviors among low-index surfaces of BiVO4 for photocatalytic reactions. PMID- 29350030 TI - Correction to "Tunneling Control of Chemical Reactions: The Third Reactivity Paradigm". PMID- 29350029 TI - Microwell Array Method for Rapid Generation of Uniform Agarose Droplets and Beads for Single Molecule Analysis. AB - Compartmentalization of aqueous samples in uniform emulsion droplets has proven to be a useful tool for many chemical, biological, and biomedical applications. Herein, we introduce an array-based emulsification method for rapid and easy generation of monodisperse agarose-in-oil droplets in a PDMS microwell array. The microwells are filled with agarose solution, and subsequent addition of hot oil results in immediate formation of agarose droplets due to the surface-tension of the liquid solution. Because droplet size is determined solely by the array unit dimensions, uniform droplets with preselectable diameters ranging from 20 to 100 MUm can be produced with relative standard deviations less than 3.5%. The array based droplet generation method was used to perform digital PCR for absolute DNA quantitation. The array-based droplet isolation and sol-gel switching property of agarose enable formation of stable beads by chilling the droplet array at -20 degrees C, thus, maintaining the monoclonality of each droplet and facilitating the selective retrieval of desired droplets. The monoclonality of droplets was demonstrated by DNA sequencing and FACS analysis, suggesting the robustness and flexibility of the approach for single molecule amplification and analysis. We believe our approach will lead to new possibilities for a great variety of applications, such as single-cell gene expression studies, aptamer selection, and oligonucleotide analysis. PMID- 29350031 TI - Microbiota-Regulated Outcomes of Human Cancer Immunotherapy via the PD-1/PD-L1 Axis. PMID- 29350032 TI - Structure and Gas Transport at the Polymer-Zeolite Interface: Insights from Molecular Dynamics Simulations. AB - We investigate the structure of polyimide (PI) at the surface of a silicalite zeolite (MFI), as part of a model hybrid organic-inorganic mixed matrix membrane system, through equilibrium molecular dynamics simulations. Furthermore, we report a comparison of the adsorption and transport characteristics of pure components CO2 and CH4 in PI, MFI, and PI-MFI composite membranes. It is seen that incorporation of MFI zeolite into PI results in the formation of densified polymer layers (rigidified region) near the surface, having thickness around 1.2 nm, before bulklike behavior of the polymer is attained, contrary to empirical fits suggesting the existence of an approximately 1 MUm thick interface between the polymer and filler. This region offers an extra resistance to gas diffusion especially for the gas with a larger kinetic diameter, CH4, thus improving the CO2/CH4 kinetic selectivity in the PI-MFI composite membrane. Furthermore, we find that the kinetic selectivity of CO2 over CH4 in the rigidified region increases with temperature and that additivity of transport resistances in MFI, interfacial layer, and bulklike region of the polymer satisfactorily explains transport behavior in the composite sandwich investigated. The gas adsorption isotherms are extracted considering the dynamics and structural transitions in the PI and PI-MFI composite upon gas adsorption, and it is seen that the rigidified layer affects the gas adsorption in the polymer in the PI-MFI hybrid system. A significant increase in CO2/CH4 selectivity as well as gas permeability is observed in the PI-MFI composite membrane compared to that in the pure PI polymer membrane, which is correlated with the high selectivity of the rigidified interfacial layer in the polymer. Thus, while enhancing transport resistance, the rigidified layer is beneficial to membrane selectivity, leading to improved performance based on the Robeson upper bound plot for polymers. PMID- 29350033 TI - Impact of Backbone Pattern and Residue Substitution on Helicity in alpha/beta/gamma-Peptides. AB - We have evaluated the impact of changes in the chemical structure of peptidic oligomers containing alpha-, beta-, and gamma-amino acid residues (alpha/beta/gamma-peptides) on the propensities of these oligomers to adopt helical conformations in aqueous and alcoholic solutions. These studies were inspired by our previous discovery that alpha/beta/gamma-peptides containing a regular alphagammaalphaalphabetaalpha hexad repeat adopt an alpha-helix-like conformation in which the beta and gamma residues are aligned in a stripe along one side, and the remainder of the helix surface is defined by the alpha residues. This helix was found to be most stable when the beta and gamma residues were rigidified with specific cyclic constraints. Relaxation of the beta residue constraints caused profound conformational destabilization, but relaxation of the gamma residue constraints led to only a moderate drop in helicity. The new work more broadly characterizes the effect of gamma residue substitution on helix stability, based on circular dichroism and two-dimensional NMR measurements. We find that even a fully unsubstituted gamma residue (derived from gamma aminobutyric acid) supports a moderate helical propensity, which is surprising in light of the strong destabilizing effect of glycine residues on alpha-helix stability. Additional studies examine the effects of altering sequence in terms of amino acid type, by comparing a prototype with the alphagammaalphaalphabetaalpha hexad pattern to isomers with irregular arrangements of the alpha, beta, and gamma residues along the backbone. The data indicate that the strong helix-forming propensity previously discovered for alpha/beta/gamma-peptide 12-mers is retained when sequence is varied, with small variations detected across diverse alpha-beta-gamma placements. These structural findings suggest that alpha/beta/gamma-peptide scaffolds represent versatile scaffolds for the design of peptidic foldamers that display specific functions. PMID- 29350034 TI - Probing the Complexities of Structural Changes in Layered Oxide Cathode Materials for Li-Ion Batteries during Fast Charge-Discharge Cycling and Heating. AB - The rechargeable lithium-ion battery (LIB) is the most promising energy storage system to power electric vehicles with high energy density and long cycling life. However, in order to meet customers' demands for fast charging, the power performances of current LIBs need to be improved. From the cathode aspect, layer structured cathode materials are widely used in today's market and will continue to play important roles in the near future. The high rate capability of layered cathode materials during charging and discharging is critical to the power performance of the whole cell and the thermal stability is closely related to the safety issues. Therefore, the in-depth understanding of structural changes of layered cathode materials during high rate charging/discharging and the thermal stability during heating are essential in developing new materials and improving current materials. Since structural changes take place from the atomic level to the whole electrode level, combination of characterization techniques covering multilength scales is quite important. In many cases, this means using comprehensive tools involving diffraction, spectroscopy, and imaging to differentiate the surface from the bulk and to obtain structural/chemical information with different levels of spatial resolution. For example, hard X-ray spectroscopy can yield the bulk information and soft X-ray spectroscopy can give the surface information; X-ray based imaging techniques can obtain spatial resolution of tens of nanometers, and electron-based microcopy can go to angstroms. In addition to challenges associated with different spatial resolution, the dynamic nature of structural changes during high rate cycling and heating requires characterization tools to have the capability of collecting high quality data in a time-resolved fashion. Thanks to the advancement in synchrotron based techniques and high-resolution electron microscopy, high temporal and spatial resolutions can now be achieved. In this Account, we focus on the recent works studying kinetic and thermal properties of layer-structured cathode materials, especially the structural changes during high rate cycling and the thermal stability during heating. Advanced characterization techniques relating to the rate capability and thermal stability will be introduced. The different structure evolution behavior of cathode materials cycled at high rate will be compared with that cycled at low rate. Different response of individual transition metals and the inhomogeneity in chemical distribution will be discussed. For the thermal stability, the relationship between structural changes and oxygen release will be emphatically pointed out. In all these studies being reviewed, advanced characterization techniques are critically applied to reveal complexities at multiscale in layer-structured cathode materials. PMID- 29350035 TI - Selective Proton/Deuteron Transport through Nafion|Graphene|Nafion Sandwich Structures at High Current Density. AB - Ion current densities near 1 A cm-2 at modest bias voltages (<200 mV) are reported for proton and deuteron transmission across single-layer graphene in polyelectrolyte-membrane (PEM)-style hydrogen pump cells. The graphene is sandwiched between two Nafion membranes and covers the entire area between two platinum-carbon electrodes, such that proton transfer is forced to occur through the graphene layer. Raman spectroscopy confirms that buried graphene layers are single-layer and relatively free of defects following the hot-press procedure used to make the sandwich structures. Area-normalized ion conductance values of approximately 29 and 2.1 S cm-2 are obtained for proton and deuteron transport, respectively, through single-layer graphene, following correction for contributions to series resistance from Nafion resistance, contact resistance, etc. These ion conductance values are several hundred to several thousand times larger than in previous reports on similar phenomena. A ratio of proton to deuteron conductance of 14 to 1 is obtained, in good agreement with but slightly larger than those in prior reports on related cells. Potassium ion transfer rates were also measured and are attenuated by a factor of many thousands by graphene, whereas proton transfer is attenuated by graphene by only a small amount. Rates for hydrogen and deuterium ion exchange across graphene were analyzed using a model whereby each hexagonal graphene hollow site is assumed to transmit ions with a specific per-site ion-transfer self-exchange rate constant. Rate constant values of approximately 2500 s-1 for proton transfer and 180 s-1 for deuteron transfer per site through graphene are reported. PMID- 29350036 TI - Electrochemical and Spectral Characterization of Iron Corroles in High and Low Oxidation States: First Structural Characterization of an Iron(IV) Tetrapyrrole pi Cation Radical. AB - The electrochemistry and spectroscopic properties of three iron corroles were examined in benzonitrile, dichloromethane, and pyridine containing 0.1 M tetra-n butylammonium perchlorate or tetra-n-ethylammonium hexafluorophosphate as supporting electrolyte. The investigated compounds are represented as (OEC)FeIV(C6H5), (OEC)FeIVCl, and (OEC)FeIII(py), where OEC is the trianion of 2,3,7,8,12,13,17,18-octaethylcorrole. Each iron(IV) corrole undergoes two one electron reductions and two or three one-electron oxidations depending upon the solvent. Under the same solution conditions, the iron(III) corrole undergoes a single one-electron reduction and one or two one-electron oxidations. Each singly oxidized and singly reduced product was characterized by UV-vis and/or EPR spectroscopy. The data indicate a conversion of (OEC)FeIV(C6H5) and (OEC)FeIVCl to their iron(III) forms upon a one-electron reduction and to iron(IV) corrole pi cation radicals upon a one-electron oxidation. The metal center in [(OEC)FeIII(C6H5)]- is low spin (S = 1/2) as compared to electrogenerated [(OEC)FeIIICl]-, which contains an intermediate-spin (S = 3/2) iron(III). (OEC)FeIII(py) also contains an intermediate-spin-state iron(III) and, unlike previously characterized (OEC)FeIII(NO), is converted to an iron(IV) corrole upon oxidation rather than to an iron(III) pi cation radical. Singly oxidized [(OEC)FeIV(C6H5)]*+ is the first iron(IV) tetrapyrrole pi cation radical to be isolated and was structurally characterized as a perchlorate salt. It crystallizes in the triclinic space group P1 with a = 10.783(3) A, b = 13.826(3) A, c = 14.151(3) A, alpha = 78.95(2) degrees , beta = 89.59(2) degrees , and gamma = 72.98(2) degrees at 293 K with Z = 2. Refinement of 8400 reflections and 670 parameters against F o2 yields R1 = 0.0864 and wR2 = 0.2293. The complex contains a five-coordinated iron with average Fe-N bond lengths of 1.871(3) A. The formulation of the electron distribution in this compound was confirmed by Mossbauer, X-ray crystallographic, and magnetic susceptibility data as well as by EPR spectroscopy, which gives evidence for strong antiferromagnetic coupling between the iron(IV) center and the singly oxidized corrole macrocycle. PMID- 29350037 TI - Oxidation of Isodiphenylfluorindine: Routes to 13-Oxoisodiphenylfluorindinium Perchlorate and Fluorindine Cruciform Dimers. AB - Isodiphenylfluorindine (5) reacts with K2Cr2O7/H+ to give 13 oxoisodiphenylfluorindinium perchlorate (7) (75%), but with phenyliodine bis(trifluoroacetate) (PIFA) or MnO2 it gives the zwitterionic and quinoidal cruciform 13,13'-dimers 11 (85%) and 12 (89%), respectively. The zwitterionic 13,13'-dimer 11 can be rapidly converted with MnO2 into the quinoidal 13,13' dimer 12 (100%). UV-vis, NMR, single-crystal X-ray diffraction, and density functional theory studies support the structural assignments of all products. The electrochemical behavior of the compounds is also presented. PMID- 29350038 TI - Efficient Mass Spectral Analysis of Active Transporters Overexpressed in Escherichia coli. AB - Structural analysis of purified active membrane proteins can be performed by mass spectrometry (MS). However, no large-scale expression systems for active eukaryotic membrane proteins are available. Moreover, because membrane proteins cannot easily be digested by trypsin and ionized, they are difficult to analyze by MS. We developed a method for mass spectral analysis of eukaryotic membrane proteins combined with an overexpression system in Escherichia coli. Vesicular glutamate transporter 2 (VGLUT2/SLC17A6) with a soluble alpha-helical protein and histidine tag on the N- and C-terminus, respectively, was overexpressed in E. coli, solubilized with detergent, and purified by Ni-NTA affinity chromatography. Proteoliposomes containing VGLUT2 retained glutamate transport activity. For MS analysis, the detergent was removed from purified VGLUT2 by trichloroacetic acid precipitation, and VGLUT2 was then subjected to reductive alkylation and tryptic digestion. The resulting peptides were detected with 88% coverage by matrix assisted laser desorption ionization time-of-flight (MALDI-TOF) MS with or without liquid chromatography. Vesicular excitatory amino acid transporter and vesicular acetylcholine transporter were also detected with similar coverage by the same method. Thus this methodology could be used to analyze purified eukaryotic active transporters. Structural analysis with chemical modifiers by MS could have applications in functional binding analysis for drug discovery. PMID- 29350039 TI - Rhodium(III)-Catalyzed Directed C-H Coupling with Methyl Trifluoroacrylate: Diverse Synthesis of Fluoroalkenes and Heterocycles. AB - An example of Rh-catalyzed C-H activation with methyl trifluoroacrylate for the synthesis of fluoroolefins and heterocycles (benzoindolizines) is reported. The types of products were determined by the directing group. The benzoindolizines and fluoroolefins were obtained by using pyridine and pyrazole as the directing group, correspondingly. These transformations present a number of advantages, such as oxidant-free reaction conditions and broad functional group tolerance. Moreover, this reaction greatly extends the application of fluoroolefins. PMID- 29350041 TI - Chemo-, Regio-, and Enantioselective Rhodium-Catalyzed Allylation of Triazoles with Internal Alkynes and Terminal Allenes. AB - The rhodium-catalyzed asymmetric N1-selective and regioselective coupling of triazole derivatives with internal alkynes and terminal allenes gives access to secondary and tertiary allylic triazoles in very good enantioselectivities. For this process, three new members of the JosPOphos ligand family have been prepared and employed in catalysis. The optimized reaction conditions enable the coupling of triazoles with internal alkynes as well as with allenes, displaying a high tolerance for functional groups. A gram scale reaction provided N1-allyltriazole, which was subjected to various transformations highlighting synthetic utility. PMID- 29350040 TI - Formal (4 + 1)-Addition of Allenoates to o-Quinone Methides. AB - The first (4 + 1)-annulation of o-quinone methides with alpha-branched allenoates as C1 synthons has been developed. This operationally simple protocol gives access to highly functionalized dihydrobenzofurans in an unprecedented fashion with excellent diastereoselectivities and high yields. PMID- 29350042 TI - Application of Sulfur Ylides in 1,2-Difunctionalization of Arynes via Insertion into a C-S sigma-Bond. AB - A novel reactivity of sulfur ylides has been demonstrated in a transition-metal free protocol to access ortho-substituted thioanisole derivatives by insertion of arynes into a C-S sigma-bond in moderate to good yields. The reaction involves the formation of C-C and C-S bonds and consecutive breaking of two C-S bonds under operationally mild reaction conditions. PMID- 29350043 TI - The Acid-Free Cyclopropanol-Minisci Reaction Reveals the Catalytic Role of Silver Pyridine Complexes. AB - A well-defined homogeneous silver precatalyst can be utilized for the direct C-H functionalization of a wide range of aromatic nitrogen heterocycles with cyclopropanols under acid-free conditions. This reaction can be conducted on gram scale and with low catalyst loadings (as low as 1%), which is rare for silver catalyzed Minisci-type reactions. Moreover, reactivity trends, as well as steric and calculated electronic properties of the heterocycles, strongly suggest that silver-heterocycle complexes formed in situ behave as redox active catalysts and as Lewis acid activators of the heterocycle and that the electronic nature of the heterocyclic substrates tunes the reactivity of the resulting complexes. PMID- 29350044 TI - Enhanced Thermal Stability in Perovskite Solar Cells by Assembling 2D/3D Stacking Structures. AB - Two-dimensional (2D) perovskites have been shown to be more stable than their three-dimensional (3D) counterparts due to the protection of the organic ligands. Herein a method is introduced to form 2D/3D stacking structures by the reaction of 3D perovskite with n-Butylamine (BA). Different from regular treatment with n Butylammonium iodide (BAI) where 2D perovskite with various layers form, the reaction of BA with MAPbI3 only produce (BA)2PbI4, which has better protection due to more organic ligands in (BA)2PbI4 than the mixture of 2D perovskites. Compared to BAI treatment, BA treatment results in smoother 2D perovskite layer on 3D perovskites with a better coverage. The photovoltaic devices with 2D/3D stacking structures show much improved stability in comparison to their 3D counterparts when subjected to heat stress tests. Moreover, the conversion of defective surface into 2D layers also induces passivation of the 3D perovskites resulting in an enhanced efficiency. PMID- 29350045 TI - Total Synthesis of (-)-Xestosaprol N and O. AB - The first total synthesis of (-)-xestosaprol N and O is described. This synthetic work features a convergent strategy: (1) a Pd-catalyzed arylation followed by cyclization to build a naphthalene fragment (ring C, D); (2) utilization of (-) quinic acid to construct the chiral hydroxyl group at C-2; (3) a substrate controlled intramolecular Heck reaction to construct a quaternary carbon center (ring B); (4) introduction of a hypotaurine moiety at a late stage to furnish the E ring. PMID- 29350046 TI - Catalytic Enantioselective Reaction of 2H-Azirines with Thiols Using Cinchona Alkaloid Sulfonamide Catalysts. AB - The first catalytic enantioselective reaction of 2H-azirines with thiols has been developed. The obtained aziridines can be converted to optically active oxazolines, aziridylamides, or alpha-sulfonyl esters. Transformation of these optically active aziridines showed that 2H-azirines act as beta,beta dicarbocationic amine synthons. PMID- 29350047 TI - Removable Water-Soluble Olefin Metathesis Catalyst via Host-Guest Interaction. AB - A highly removable N-heterocyclic carbene ligand for a transition-metal catalyst in aqueous media via host-guest interactions has been developed. Water-soluble adamantyl tethered ethylene glycol in the ligand leads a hydrophobic inclusion into the cavity of beta-cyclodextrin. Ruthenium (Ru) olefin metathesis catalyst with this ligand demonstrated excellent performance in various metathesis reactions in water as well as in CH2Cl2, and removal of residual Ru was performed via filtration utilizing a host-guest interaction and extraction. PMID- 29350048 TI - Triple-split-bolus versus single-bolus CT in abdominal trauma patients: a comparative study. AB - Background Split-bolus computed tomography (CT) is a recent development in trauma imaging. Instead of multiple scans in different contrast phases after a single contrast bolus, split-bolus protocols consist of one single scan of the thorax and abdomen after two or three contrast injections at different points of time. Purpose To evaluate and compare image quality and injury findings of a new triple split-bolus CT (TS-CT) protocol of thorax and abdomen with those of a portal venous phase CT (PV-CT) in the same patient group. Material and Methods Trauma patients in 2009-2012 who underwent both the TS-CT initially and a PV-CT during the next six weeks were included. The TS-CT examination was performed as one CT run after application of three contrast boluses (total 175 mL) to enhance renal pelvis and urinary tract, the abdominal organs, and the large arterial vessels. The PV-CT had a fixed delay of 85 s. We measured attenuation in Hounsfield units (HU), evaluated possible organ injury and assessed image quality on a 5-point scale. Results Thirty-five patients were included. Attenuation measurements of major abdominal vessels, organs, and renal pelvis were significantly higher with the TS-CT protocol. Performance in organ injury diagnosis and image quality was equal in both protocols. Conclusion The overall performance of the TS-CT protocol is similar to the standard PV-CT. Excellent visualization of the arterial tree and the collecting system may eliminate the need for separate scans. PMID- 29350050 TI - Marital Status and Trajectories of Depressive Symptoms Among Older Adults of Mexican Descent. AB - Little is known about the implications of marital status for the age patterning of depressive symptoms in later life. Drawing on seven waves of data from the Hispanic Established Population for the Epidemiologic Study of the Elderly, this research uses growth curve models to examine age trajectories of depressive symptoms among continuously married and recently and continuously widowed older adults of Mexican descent (aged 65 years and older; N = 1,452). The findings demonstrate that despite having a higher mean level of depressive symptoms, the recently widowed experienced a similar rate of increase in distress with age to that of their married counterparts. Compared with the married, the continuously widowed had a steeper rise in depressive symptoms with age, although they had fewer symptoms at younger ages in later life. Physical health, financial strain, social support, and church attendance might account to a certain extent for marital status differences in depressive symptoms across later life. PMID- 29350052 TI - Protective mechanisms of 6-gingerol in dextran sulfate sodium-induced chronic ulcerative colitis in mice. AB - Ulcerative colitis (UC) is a relapsing and remitting inflammatory disease of the colon, with an increasing incidence worldwide. 6-Gingerol (6G) is a bioactive constituent of Zingiber officinale, which has been reported to possess various biological activities. This study was designed to evaluate the role of 6G in chronic UC. Chronic UC was induced in mice by three cycles of 2.5% dextran sulfate sodium (DSS) in drinking water. Each cycle consisted of 7 days of 2.5% DSS followed by 14 days of normal drinking water. 6G (100 mg/kg) and a reference anti-colitis drug sulfasalazine (SZ) (100 mg/kg) were orally administered daily to the mice throughout exposure to three cycles of 2.5% DSS. Administration of 6G and SZ significantly prevented disease activity index and aberrant crypt foci formation in DSS-treated mice. Furthermore, 6G and SZ suppresses immunoexpression of tumor necrosis factor alpha, interleukin-1beta, inducible nitric oxide synthase, Regulated on activation, normal T cell expressed and secreted (RANTES), and Monocyte chemoattractant protein-1 (MCP-1) in the DSS-treated mice. 6G effectively protected against colonic oxidative damage by augmenting the antioxidant status with marked decrease in lipid peroxidation levels in DSS treated mice. Moreover, 6G significantly inhibited nuclear factor kappa B (P65), p38, cyclooxygenase-2, and beta-catenin whereas it enhanced IL-10 and adenomatous polyposis coli expression in DSS-treated mice. In conclusion, 6G prevented DSS induced chronic UC via anti-inflammatory and antioxidative mechanisms and preservation of the Wnt/beta-catenin signaling pathway. PMID- 29350051 TI - HSA-based multi-target combination therapy: regulating drugs' release from HSA and overcoming single drug resistance in a breast cancer model. AB - Multi-drug delivery systems, which may be promising solution to overcome obstacles, have limited the clinical success of multi-drug combination therapies to treat cancer. To this end, we used three different anticancer agents, Cu(BpT)Br, NAMI-A, and doxorubicin (DOX), to build human serum albumin (HSA) based multi-drug delivery systems in a breast cancer model to investigate the therapeutic efficacy of overcoming single drug (DOX) resistance to cancer cells in vivo, and to regulate the drugs' release from HSA. The HSA complex structure revealed that NAMI-A and Cu(BpT)Br bind to the IB and IIA sub-domain of HSA by N donor residue replacing a leaving group and coordinating to their metal centers, respectively. The MALDI-TOF mass spectra demonstrated that one DOX molecule is conjugated with lysine of HSA by a pH-sensitive linker. Furthermore, the release behavior of three agents form HSA can be regulated at different pH levels. Importantly, in vivo results revealed that the HSA-NAMI-A-Cu(BpT)Br-DOX complex not only increases the targeting ability compared with a combination of the three agents (the NAMI-A/Cu(BpT)Br/DOX mixture), but it also overcomes DOX resistance to drug-resistant breast cancer cell lines. PMID- 29350053 TI - 8-isopentenyl isoflavone derivatives from the whole herb of Sphaerophysa salsula. AB - Phytochemical studies on the whole herb of Sphaerophysa salsula has resulted in the discovery of one new 8-isopentenyl isoflavone derivative, named sphaerosin s2 (3-(8-(2-hydroxypropan-2-yl)-3,4-dihydro-2H-furo[2,3-h]chromen-3-yl)-2,6 dimethoxyphenol) (1), along with four know 8-isopentenyl isoflavone derivatives (2-5). Compounds (2, 4 and 5) were isolated for the first time from this species. Their structures were elucidated on the basis of ESI-MS, UV, IR, 1D NMR and 2D NMR data. PMID- 29350054 TI - Caloinophyllin A, a new chromanone derivative from Calophyllum inophyllum roots. AB - A new chromanone derivative, namely caloinophyllin A (1), along with eight known compounds (2-9), nobiletin (2), pentamethylquercetin (3), 3,5,7,4' tetramethoxyflavone (4), 5,7,4'-trimethoxyflavone (5), 1,5-dihydroxyxanthone (6), 1,8-dimethoxy-2-hydroxyxanthone (7), 1,6-dihydroxy-7-methoxyxanthone (8) and 4 methoxycaffeic acid (9) were isolated from the roots of Calophyllum inophyllum. The structures of all the isolated compounds (1-9) were fully characterised using spectroscopic data, as well as comparison with the previous literature data. In addition, the quantum chemical calculation has been used to confirm the conformation of 1. Moreover, all isolated compounds were assessed for their in vitro cytotoxicity against five human cancer cell lines. PMID- 29350049 TI - Targeted and Off-Target (Bystander and Abscopal) Effects of Radiation Therapy: Redox Mechanisms and Risk/Benefit Analysis. AB - SIGNIFICANCE: Radiation therapy (from external beams to unsealed and sealed radionuclide sources) takes advantage of the detrimental effects of the clustered production of radicals and reactive oxygen species (ROS). Research has mainly focused on the interaction of radiation with water, which is the major constituent of living beings, and with nuclear DNA, which contains the genetic information. This led to the so-called target theory according to which cells have to be hit by ionizing particles to elicit an important biological response, including cell death. In cancer therapy, the Poisson law and linear quadratic mathematical models have been used to describe the probability of hits per cell as a function of the radiation dose. Recent Advances: However, in the last 20 years, many studies have shown that radiation generates "danger" signals that propagate from irradiated to nonirradiated cells, leading to bystander and other off-target effects. CRITICAL ISSUES: Like for targeted effects, redox mechanisms play a key role also in off-target effects through transmission of ROS and reactive nitrogen species (RNS), and also of cytokines, ATP, and extracellular DNA. Particularly, nuclear factor kappa B is essential for triggering self sustained production of ROS and RNS, thus making the bystander response similar to inflammation. In some therapeutic cases, this phenomenon is associated with recruitment of immune cells that are involved in distant irradiation effects (called "away-from-target" i.e., abscopal effects). FUTURE DIRECTIONS: Determining the contribution of targeted and off-target effects in the clinic is still challenging. This has important consequences not only in radiotherapy but also possibly in diagnostic procedures and in radiation protection. PMID- 29350056 TI - New isolates from leaves of Nicotiana tabacum and their biological activities. AB - Three new isolates (1-3) including one new sterol and two new flavonoids together with three known sterols (4-6) were isolated from the leaves of Nicotiana tabacum. Their structures were determined mainly by spectroscopic methods, including extensive 1D and 2D NMR techniques. All compounds were evaluated for their anti-tobacco mosaic virus and cytotoxic activities. The results showed that compounds 2 and 3 exhibited high anti-TMV activity with inhibition rate of 34.2 and 33.4%, respectively, which were roughly equivalent to that of positive control. The cytotoxicities of compounds 1 and 4-6 against five human tumour cell lines were also tested, and tested compounds showed weak inhibitory activities against some tested human tumour cell lines. PMID- 29350057 TI - Comment on 'Effect of marijuana use on cardiovascular and cerebrovascular mortality'. PMID- 29350058 TI - The challenge of risk prediction: How good are we? PMID- 29350055 TI - Therapeutic strategies and nano-drug delivery applications in management of ageing Alzheimer's disease. AB - In recent years, the incidental rate of neurodegenerative disorders has increased proportionately with the aging population. Alzheimer's disease (AD) is one of the most commonly reported neurodegenerative disorders, and it is estimated to increase by roughly 30% among the aged population. In spite of screening numerous drug candidates against various molecular targets of AD, only a few candidates - such as acetylcholinesterase inhibitors are currently utilized as an effective clinical therapy. However, targeted drug delivery of these drugs to the central nervous system (CNS) exhibits several limitations including meager solubility, low bioavailability, and reduced efficiency due to the impediments of the blood brain barrier (BBB). Current advances in nanotechnology present opportunities to overcome such limitations in delivering active drug candidates. Nanodrug delivery systems are promising in targeting several therapeutic moieties by easing the penetration of drug molecules across the CNS and improving their bioavailability. Recently, a wide range of nano-carriers, such as polymers, emulsions, lipo carriers, solid lipid carriers, carbon nanotubes, metal based carriers etc., have been adapted to develop successful therapeutics with sustained release and improved efficacy. Here, we discuss few recently updated nano-drug delivery applications that have been adapted in the field of AD therapeutics, and future prospects on potential molecular targets for nano-drug delivery systems. PMID- 29350059 TI - A new curriculum to address dementia-related stigma: Preliminary experience with Alzheimer's Association staff. AB - Objective Develop and test a stigma awareness and education curriculum targeted to non-medical staff of a local Alzheimer's Association chapter. Methods The curriculum, developed in collaboration with leadership and educational staff from the Cleveland Chapter of the Alzheimer's Association, included a definition, types, and domains of stigma; effects of stigma on individuals with dementia and their families; stigma evaluation studies; tips to address the topic of dementia related stigma with individuals and families. Lastly, an interactive discussion of real-life scenarios facilitated stigma recognition and management. Results Most staff felt the training improved their ability to identify Alzheimer's disease stigma, made them more comfortable talking about stigma, and would change the way they interacted with people and families impacted by Alzheimer's disease. Conclusions This brief, practical educational curriculum has potential to improve awareness of dementia stigma in Alzheimer's Association staff. Research is needed to expand stigma awareness in individuals and groups with varying levels of dementia knowledge. PMID- 29350060 TI - "So they are not alive?": Dementia, reality disjunctions and conversational strategies. AB - In some conversations involving persons with Alzheimer's disease, the participants may have to deal with the difficulty that they do not share a common ground in terms of not only who is alive or dead, but even more, who could possibly be alive. It is as if the participants face a reality disjunction. There are very few empirical studies of this difficulty in conversations involving persons with Alzheimer's disease or other kinds of dementia diagnoses. Often studies of confabulation have a focus on the behavior and experience of the healthy participants, but rarely on the interaction and the collaborative contributions made by the person with dementia. In the present article, we discuss various strategies used by all participants in an everyday conversation. The material consists of an hour long everyday conversation between a woman with Alzheimer's disease and two healthy participants (relatives). This conversation is analyzed by looking at the organization of the interaction with an emphasis on how the participants deal with instances of reality disjunctions. The result from the analysis demonstrates that both the healthy participants as well as the person with dementia together skillfully avoid the face threats posed by reality disjunctive contributions by not pursuing argumentative lines that in the end might jeopardize both the collaborative and the personal relations. PMID- 29350062 TI - Telotristat ethyl: a novel agent for the therapy of carcinoid syndrome diarrhea. AB - Carcinoid syndrome (CS), characterized by diarrhea and flushing, is present in 20% of patients with neuroendocrine tumors at diagnosis and becomes more frequent with progression. The diarrhea of CS is caused mainly by tumoral secretion of serotonin. It may not be fully controlled by somatostatin analogs, the currently indicated drugs for symptomatic relief. Telotristat ethyl is a novel inhibitor of tryptophan hydroxylase, the rate-limiting enzyme in serotonin biosynthesis. Administration of the drug decreases diarrhea in patients with CS. Telotristat ethyl was approved in February 2017 (USA) and September 2017 (European Commission) for the treatment of CS diarrhea in adults inadequately controlled by somatostatin analog alone. This drug is expected to greatly improve the health and quality of life of patients with CS diarrhea. PMID- 29350063 TI - A qualitative interview study of people living with well-controlled Type 1 diabetes. AB - OBJECTIVE: While many people with Type 1 diabetes find it difficult to achieve recommended blood glucose levels, a minority do achieve good control. Our study was conceived by patient and public (PP) partners and sought to learn about experiences of people living with well-controlled diabetes. DESIGN: A collaboration between academic health psychologists and five PP partners with experience of diabetes, who were trained to conduct and analyse semi-structured interviews. Fifteen adults with well-controlled Type 1 diabetes were interviewed about the history of their diabetes and their current self-management practices. Interviews were subjected to inductive thematic analysis. RESULTS: Eight sub themes were arranged into two overarching themes, 'facing up to diabetes' and 'balance leads to freedom'. Participants described a process of acceptance and mastery of diabetes, and talked about how they gained a deeper understanding of bodily processes through trial and error. CONCLUSION: Based on the experiences of people with well-controlled Type 1 diabetes, interventions for people with this condition should encourage acceptance of the diagnosis and increasing confidence to experiment with behaviours (trial and error) to encourage 'mastery' of self management. The research collaboration described here is an example of best practice for future researchers wanting to actively engage PP partners. PMID- 29350064 TI - Comparison of hyaluronic acid-based micelles and polyethylene glycol-based micelles on reversal of multidrug resistance and enhanced anticancer efficacy in vitro and in vivo. AB - Polyethylene glycol (PEG)-based block copolymer micelles and hyaluronic acid (HA) based grafted copolymer micelles have been widely investigated in chemotherapy. In this study, to evaluate the differences among HA-based grafted polymer micelles, PEG-based block polymer micelles and the mixed of these two micelles in enhancing antitumor effects and overcoming MDR, two amphiphilic vitamin E succinate (VES) derivatives, HA VES (HA-g-VES) and PEG 2000 VES (TPGS2k), were applied as nanocarriers to prepare HA-VES micelles (HA-PMs), TPGS2k micelles (TPGS2k-PMs) and the mixed micelles (HA/TPGS2k-PMs) for the co-delivery of doxorubicin (DOX) and curcumin (Cur). With the addition of TPGS2k, the particle size of HA/TPGS2k-PMs (153.37 +/- 1.00 nm) was smaller than that of HA-PMs (223.83 +/- 1.84) but significantly larger than that of TPGS2k-PMs (about 20 nm). The loading efficiency of HA/TPGS2k-PMs was 7.10%, which was lower than HA-PMs (8.31 +/- 0.15%) but higher than TPGS2k-PMs (4.38 +/- 0.24%). In vitro, HA/TPGS2k PMs and TPGS2k-PMs exhibited higher cytotoxicity and reversal MDR effects than HA PMs in MCF-7/Adr cells. However, HA/TPGS2k-PMs, HA-PMs and TPGS2k-PMs all significantly improved the tumor biodistribution, the antitumor effects and reduced the side effects of DOX in 4T1-tumor-bearing mice, but these three micelles displayed no differences in vivo. Therefore, EPR passive targeting effects caused by PEGylated micelles and CD44 active targeting effects caused by HA-based micelles have no significant variance in the delivery of antitumor drugs by i.v. PMID- 29350065 TI - Molecular typing of Lactobacillus brevis isolates from Korean food using repetitive element-polymerase chain reaction. AB - Lactobacillus brevis is a part of a large family of lactic acid bacteria that are present in cheese, sauerkraut, sourdough, silage, cow manure, feces, and the intestinal tract of humans and rats. It finds its use in food fermentation, and so is considered a "generally regarded as safe" organism. L. brevis strains are extensively used as probiotics and hence, there is a need for identifying and characterizing these strains. For identification and discrimination of the bacterial species at the subspecific level, repetitive element-polymerase chain reaction method is a reliable genomic fingerprinting tool. The objective of the present study was to characterize 13 strains of L. brevis isolated from various fermented foods using repetitive element-polymerase chain reaction. Repetitive element-polymerase chain reaction was performed using three primer sets, REP, Enterobacterial Repetitive Intergenic Consensus (ERIC), and (GTG)5, which produced different fingerprinting patterns that enable us to distinguish between the closely related strains. Fingerprinting patterns generated band range in between 150 and 5000 bp with REP, 200-7500 bp with ERIC, and 250-2000 bp with (GTG)5 primers, respectively. The Jaccard's dissimilarity matrices were used to obtain dendrograms by the unweighted neighbor-joining method using genetic dissimilarities based on repetitive element-polymerase chain reaction fingerprinting data. Repetitive element-polymerase chain reaction proved to be a rapid and easy method that can produce reliable results in L. brevis species. PMID- 29350061 TI - The Adverse Effects of Environmental Noise Exposure on Oxidative Stress and Cardiovascular Risk. AB - Epidemiological studies have provided evidence that traffic noise exposure is linked to cardiovascular diseases such as arterial hypertension, myocardial infarction, and stroke. Noise is a nonspecific stressor that activates the autonomous nervous system and endocrine signaling. According to the noise reaction model introduced by Babisch and colleagues, chronic low levels of noise can cause so-called nonauditory effects, such as disturbances of activity, sleep, and communication, which can trigger a number of emotional responses, including annoyance and subsequent stress. Chronic stress in turn is associated with cardiovascular risk factors, comprising increased blood pressure and dyslipidemia, increased blood viscosity and blood glucose, and activation of blood clotting factors, in animal models and humans. Persistent chronic noise exposure increases the risk of cardiometabolic diseases, including arterial hypertension, coronary artery disease, diabetes mellitus type 2, and stroke. Recently, we demonstrated that aircraft noise exposure during nighttime can induce endothelial dysfunction in healthy subjects and is even more pronounced in coronary artery disease patients. Importantly, impaired endothelial function was ameliorated by acute oral treatment with the antioxidant vitamin C, suggesting that excessive production of reactive oxygen species contributes to this phenomenon. More recently, we introduced a novel animal model of aircraft noise exposure characterizing the underlying molecular mechanisms leading to noise dependent adverse oxidative stress-related effects on the vasculature. With the present review, we want to provide an overview of epidemiological, translational clinical, and preclinical noise research addressing the nonauditory, adverse effects of noise exposure with focus on oxidative stress. Antioxid. Redox Signal. 28, 873-908. PMID- 29350066 TI - Differential expression of cytokeratin 14 and 18 in bladder cancer tumorigenesis. AB - It has been previously suggested that cytokeratins (CKs) are important diagnostic and prognostic biomarkers for urothelial lesions. Hence it is imperative to understand the expression pattern of cytokeratins during formation of papillary bladder cancer, which was the objective of the current study. Expression pattern of CK14 and CK18 were examined using immunohistochemical staining in a mice model of papillary bladder cancer. Twenty female mice were divided into two groups group 1 (NT) and group 2, which received N-butyl- N-(4-hydroxybutyl) nitrosamine (BBN) for 20 weeks plus one week without treatment. Following histological classification of bladder lesions, CK14 and CK18 immunostaining was assessed according to its distribution and intensity. In NT animals, both basal cells and umbrella cells showed sporadic positive staining for CK14 and CK18, respectively. In BBN group, hyperplastic lesions showed significantly more CK14 and significantly less CK18 staining ( P < 0.05 in each case). Invasive carcinomas showed increased CK14 immunostaining in all epithelial layers. Cumulatively, our data indicate that altered CK14 (high) and CK18 (low) expression is perhaps an early event in bladder cancer tumorigenesis in females at least and is characteristic of both urothelial superficial pre-neoplastic and neoplastic lesions. Impact statement Studies have shown that expression of cytokeratins (CKs) or their altered distribution affects the bladder cancer pathogenesis and disease outcome, while the underlying mechanisms are not clear. The present study aims to explore the expression pattern of CK14 and CK18 during formation of papillary bladder cancer. The results showed that hyperplastic lesions showed significantly more CK14 and significantly less CK18 staining and invasive carcinomas showed increased CK14 immunostaining in all epithelial layers in N butyl- N-(4-hydroxybutyl)nitrosamine (BBN)-induced mouse model. The results indicate that altered CK14 (high) and CK18 (low) expression is perhaps an early event in bladder cancer tumorigenesis and is characteristic of both urothelial superficial pre-neoplastic and neoplastic lesions, which may provide the early diagnosis index. PMID- 29350067 TI - Soluble Neuregulin1 is strongly up-regulated in the rat model of Charcot-Marie Tooth 1A disease. AB - Neuregulin1 (NRG1) is a growth factor playing a pivotal role in peripheral nerve development through the activation of the transmembrane co-receptors ErbB2-ErbB3. Soluble NRG1 isoforms, mainly secreted by Schwann cells, are strongly and transiently up-regulated after acute peripheral nerve injury, thus suggesting that they play a crucial role also in the response to nerve damage. Here we show that in the rat experimental model of the peripheral demyelinating neuropathy Charcot-Marie-Tooth 1A (CMT1A) the expression of the different NRG1 isoforms (soluble, type alpha and beta, type a and b) is strongly up-regulated, as well as the expression of NRG1 co-receptors ErbB2-ErbB3, thus showing that CMT1A nerves have a gene expression pattern highly reminiscent of injured nerves. Because it has been shown that high concentrations of soluble NRG1 negatively affect myelination, we suggest that soluble NRG1 over-expression might play a negative role in the pathogenesis of CMT1A disease, and that a therapeutic approach, aimed to interfere with NRG1 activity, might be beneficial for CMT1A patients. Further studies will be necessary to test this hypothesis in animal models and to evaluate NRG1 expression in human patients. Impact statement Charcot-Marie Tooth1A (CMT1A) is one of the most frequent inherited neurological diseases, characterized by chronic demyelination of peripheral nerves, for which effective therapies are not yet available. It has been recently proposed that the treatment with soluble Neuregulin1 (NRG1), a growth factor released by Schwann cells immediately after acute nerve injury, might be effective in CMT1A treatment. However, the expression of the different isoforms of endogenous NRG1 in CMT1A nerves has not been yet investigated. In this preliminary study, we demonstrate that different isoforms of soluble NRG1 are strongly over-expressed in CMT1A nerves, thus suggesting that a therapeutic approach based on NRG1 treatment should be carefully reconsidered. If soluble NRG1 is over-expressed also in human CMT1A nerves, a therapeutic approach aimed to inhibit (instead of stimulate) the signal transduction pathways driven by NRG1 might be fruitfully developed. Further studies will be necessary to test these hypotheses. PMID- 29350069 TI - New and developing pharmacotherapy for osteoporosis in men. AB - INTRODUCTION: Osteoporosis represents a major health and societal burden in men, as well as in women. However, only a minority of men are screened and treated for osteoporosis and fracture prevention, even after first fracture. Areas covered: This article provides a comprehensive summary of the currently available drugs for osteoporosis in men as well as insights into new and developing pharmacotherapy. Expert opinion: To date, therapeutic approaches to osteoporosis in men remain not as well defined as in women, since antifracture efficacy data are lacking for most approved pharmaceuticals. Based on the currently available evidence, bisphosphonates are generally recommended as first line pharmacotherapy in men. Conceptually, osteoanabolic agents, such as teriparatide could be more appropriate for men with primary osteoporosis and low bone turnover. However, osteoanabolic agents display a limited anabolic window during which their stimulatory effects on bone formation prevail over the increase in bone resorption and their use, for theoretical safety reasons, is limited to a cumulative duration of two years. Due to the recent advances in bone biology, future drugs for osteoporosis in men might include more selective antiresorptive compounds which do not markedly inhibit bone formation as well as newer osteoanabolic agents that appear to more selectively stimulate bone formation. PMID- 29350070 TI - Celiac antibodies in children with type 1 diabetes - A diagnostic validation study. AB - INTRODUCTION: Autoimmune diseases, such as celiac disease (CD) and diabetes mellitus type 1, tend to co-occur within the same patient. The prevalence of CD in diabetic children is higher than in the general population, and is estimated to be 0.6-16.4%. The diagnosis of CD is based on histopathological examination and serological testing, however, these methods are still imperfect and new diagnostic algorithms should be considered. AIM: The aim of the study was to assess the diagnostic value of serological tests detecting antibodies against deamidated gliadin peptide, endomysium, tissue transglutaminase, neo-epitope tissue transglutaminase and to identify HLA-related genetic predisposition to CD in patients with type 1 diabetes mellitus (DM1). METHODS: Autoantibodies were measured in the sera of 392 children suffering from DM1 aged 1-19 years old (mean 11.76 +/- 4.14 years old). Additionally, PCR-based assessment of HLA DQ2/DQ8 genotyping was performed. RESULTS: A positive result of at least one serological test was obtained from 81 children (20.66%). The sensitivity and specificity were 76.47% and 91.67% for anti-DGP IgA, 70.59% and 58.33% for IgG anti-DGP, respectively. A positive predictive value was 100% for the anti-TG IgA at cutoff levels of 5 and 10 times higher than upper limit of reference values. HLA DQ2 and/or DQ8 were found in 97.6% of examined children. CONCLUSIONS: Tests based on anti-TG IgA are more accurate for detecting CD in children with type 1 diabetes than anti-DGP IgA. A high percentage of diabetic children carry HLA alleles predisposing to CD, which indicates that genetic screening in this group of patients is not obligated. PMID- 29350068 TI - Primary Liver Cancers-Part 1: Histopathology, Differential Diagnoses, and Risk Stratification. AB - Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) are the 2 most common primary malignant liver tumors, with hepatocellular and bile ductular differentiation, respectively. This article reviews the key histopathological findings of these 2 primary liver cancers and includes a review of the role of ancillary testing for differential diagnosis, risk stratification according to the American Joint Committee on Cancer (AJCC) staging recommendation, and a review of precancerous lesions. A literature review was conducted to identify articles with information relevant to precancerous precursors, current histopathological classification, ancillary testing, and risk stratification of primary malignant liver tumors. The histomorphology of normal liver, preinvasive precursors, primary malignancies, and morphological variants, and the utilization of ancillary tests for the pathological diagnosis are described. Dysplastic nodules are the preinvasive precursors of HCC, and intraductal papillary neoplasms of bile ducts and biliary intraepithelial neoplasia are the preinvasive precursors of CC. Benign liver nodules including focal nodular hyperplasia and adenomas are included in this review, since some forms of adenomas progress to HCC and often they have to be differentiated from well-differentiated HCC. A number of morphological variants of HCC have been described in the literature, and it is necessary to be aware of them in order to render the correct diagnosis. Risk stratification is still dependent on the AJCC staging system. The diagnosis of primary liver carcinomas is usually straightforward. Application of the appropriate ancillary studies aids in the differential diagnosis of difficult cases. The understanding of the carcinogenesis of these malignancies has improved with the standardization of the pathological classification of preinvasive precursors and studies of the molecular pathogenesis. Risk stratification still depends on pathological staging. PMID- 29350071 TI - Disclosing respiratory co-infections: a broad-range panel assay for avian respiratory pathogens on a nanofluidic PCR platform. AB - Respiratory syndromes (RS) are among the most significant pathological conditions in edible birds and are caused by complex coactions of pathogens and environmental factors. In poultry, low pathogenic avian influenza A viruses, metapneumoviruses, infectious bronchitis virus, infectious laryngotracheitis virus, Mycoplasma spp. Escherichia coli and/or Ornithobacterium rhinotracheale in turkeys are considered as key co-infectious agents of RS. Aspergillus sp., Pasteurella multocida, Avibacterium paragallinarum or Chlamydia psittaci may also be involved in respiratory outbreaks. An innovative quantitative PCR method, based on a nanofluidic technology, has the ability to screen up to 96 samples with 96 pathogen-specific PCR primers, at the same time, in one run of real-time quantitative PCR. This platform was used for the screening of avian respiratory pathogens: 15 respiratory agents, including viruses, bacteria and fungi potentially associated with respiratory infections of poultry, were targeted. Primers were designed and validated for SYBR green real-time quantitative PCR and subsequently validated on the Biomark high throughput PCR nanofluidic platform (Fluidigm(c), San Francisco, CA, USA). As a clinical assessment, tracheal swabs were sampled from turkeys showing RS and submitted to this panel assay. Beside systematic detection of E. coli, avian metapneumovirus, Mycoplasma gallisepticum and Mycoplasma synoviae were frequently detected, with distinctive co-infection patterns between French and Moroccan flocks. This proof-of-concept study illustrates the potential of such panel assays for unveiling respiratory co infection profiles in poultry. PMID- 29350072 TI - A new polyoxygenated abietane diterpenoid from the rattans of Bauhinia championii (Benth.) Benth. AB - A new polyoxygenated abietane diterpenoid, bauchampine A (1), together with seven known compounds (2-8), were isolated from the rattans of Bauhinia championii (Benth.) Benth. The structure of 1 was elucidated by extensive spectroscopic methods and the known compounds were identified by comparison with the data reported in the literature. New compound 1 was evaluated for its anti-rheumatoid arthritis activity via examining its anti-proliferative effect on synoviocytes in vitro. Compound 1 exhibited inhibitory effect on the proliferation of synoviocytes with IC50 value comparable to that of methotrexate. PMID- 29350073 TI - In their own words: a synthesis of the qualitative research on the experiences of adults seeking asylum. A systematic review of qualitative findings in forced migration. AB - Quantitative research indicates that some forced migrants have mental health needs. Asylum seekers are a group of forced migrants applying for asylum status in a host country, and are often subject to rights restrictions and threat of deportation, though little is known about subjective experiences of the asylum journey and process of claiming asylum. The current paper therefore describes a systematic review of the qualitative literature, examining asylum seekers experiences of asylum journey, from country of origin, to arrival and adaptation to host countries. A search of four databases yielded 122 studies. Inclusion/exclusion criteria were applied and 15 studies were retained and critically appraised. The country where research was conducted, study aims, sample characteristics and methodological approaches were all critically reviewed for included studies. Study aims fell into four themes; 'an aspect of the asylum seeker journey'; 'psychological distress and wellbeing'; 'cultural identity and adaptation to new environment' and 'social welfare, employment and housing'. Studies were generally high quality and indicate issues around choice of asylum destination, distress created by uncertainty around asylum decision and hostile reactions of host communities. However, few studies have examined the experiences of asylum seekers specifically, which is important given the unique circumstances of this population. PMID- 29350074 TI - Serum concentration and clinical significance of brain-derived neurotrophic factor in patients with Parkinson's disease or essential tremor. AB - Objectives The serum concentration of brain-derived neurotrophic factor (BDNF) was compared among patients with Parkinson's disease (PD), patients with essential tremor (ET), and healthy participants, and its association with clinical features of PD and ET was assessed. Methods Demographic and clinical data were collected from 60 patients with PD at different clinical stages, 60 patients with ET, and 60 controls. All participants' serum BDNF concentrations were measured. Their motor abilities and activity were assessed by the Unified PD Rating Scale and the Hoehn and Yahr (H-Y) staging scale. Results Serum BDNF was significantly lower in patients with PD than in patients with ET and controls. BDNF decreased only in the early disease stages (H-Y stages I and II), but increased markedly in the advanced stages (H-Y stages III-V). There was no significant difference between patients with ET and controls. The BDNF concentration was negatively correlated with age at PD onset and positively associated with disease duration, severity of PD symptoms, and treatment with L DOPA. Conclusions A low serum BDNF concentration may serve as a biomarker in the early stages of PD, whereas a high concentration with PD progression may be due to treatment with L-DOPA in the advanced stages. PMID- 29350075 TI - Characterization of the proteome and lipidome profiles of human lung cells after low dose and chronic exposure to multiwalled carbon nanotubes. AB - The effects of long-term chronic exposure of human lung cells to multi-walled carbon nanotubes (MWCNT) and their impact upon cellular proteins and lipids were investigated. Since the lung is the major target organ, an in vitro normal bronchial epithelial cell line model was used. Additionally, to better mimic exposure to manufactured nanomaterials at occupational settings, cells were continuously exposed to two non-toxic and low doses of a MWCNT for 13-weeks. MWCNT-treatment increased ROS levels in cells without increasing oxidative DNA damage and resulted in differential expression of multiple anti- and pro apoptotic proteins. The proteomic analysis of the MWCNT-exposed cells showed that among more than 5000 identified proteins; more than 200 were differentially expressed in the treated cells. Functional analyses revealed association of these differentially regulated proteins to cellular processes such as cell death and survival, cellular assembly, and organization. Similarly, shotgun lipidomic profiling revealed accumulation of multiple lipid classes. Our results indicate that long-term MWCNT-exposure of human normal lung cells at occupationally relevant low-doses may alter both the proteome and the lipidome profiles of the target epithelial cells in the lung. PMID- 29350076 TI - Health Care Public Sector Share and the U.S. Life Expectancy Lag: A Country-level Longitudinal Study. AB - Growing research on the political economy of health has begun to emphasize sociopolitical influences on cross-national differences in population health above and beyond economic growth. While this research investigates the impact of overall public health spending as a share of GDP ("health care effort"), it has for the most part overlooked the distribution of health care spending across the public and private spheres ("public sector share"). I evaluate the relative contributions of health care effort, public sector share, and GDP to the large and growing disadvantage in U.S. life expectancy at birth relative to peer nations. I do so using fixed effects models with data from 16 wealthy democratic nations between 1960 and 2010. Results indicate that public sector share has a beneficial effect on longevity net of the effect of health care effort and that this effect is nonlinear, decreasing in magnitude as levels rise. Moreover, public sector share is a more powerful predictor of life expectancy at birth than GDP per capita. This study contributes to discussions around the political economy of health, the growth consensus, and the American lag in life expectancy. Policy implications vis-a-vis the U.S. Affordable Care Act are discussed. PMID- 29350077 TI - In hospital with a hearing impaired child - How parents experience communication between nurses and their child AB - Background: In daily communication, children with hearing impairment are restricted and dependent on their parents' help. In case of a hospitalisation, the risk of insufficient information and resulting traumatisation for those children is high. The aim of this study is the investigation of the communicative needs of the children concerned in order to avoid negative consequences of a hospitalisation and of inappropriate communication by nursing staff. Aim: This study explores how parents of a child with hearing impairment experience the communication between the nursing staff and their hospitalised child. Method: The study was conducted together with an advisory centre for hearing-impaired children, where most of the parents could be recruited. Narrative, semi structured interviews were conducted. The transcribed interviews were analysed according to the method of interpretative phenomenology. Results: The parents expressed their wish for affectionate verbal and nonverbal love and care for their child. They often experienced the nursing staff having little time, that there was no continuity and that the communicative needs of the child were not recognised. Since the parents did not think the nursing staff were capable of communicating with the child and because they wanted to protect him or her, they adopted a mediating role. Conclusions: Besides the sensitisation of the nursing staff, time resources, continuity, professional knowledge and benevolence in the nursing care of a child with hearing impairment play a fundamental role. PMID- 29350078 TI - External Control of Knowledge of Results: Learner Involvement Enhances Motor Skill Transfer. AB - Providing the learner control over aspects of practice has improved the process of motor skill acquisition, and self-controlled knowledge of results (KR) schedules have shown specific advantages over externally controlled ones. A possible explanation is that self-controlled KR schedules lead learners to more active task involvement, permitting deeper information processing. This study tested this explanatory hypothesis. Thirty undergraduate volunteers of both sexes, aged 18 to 35, all novices in the task, practiced transporting a tennis ball in a specified sequence within a time goal. We compared a high-involvement group (involvement yoked, IY), notified in advance about upcoming KR trials, to self-controlled KR (SC) and yoked KR (YK) groups. The experiment consisted of three phases: acquisition, retention, and transfer. We found both IY and SC groups to be superior to YK for transfer of learning. Postexperiment participant questionnaires confirmed a preference for receiving KR after learner-perceived good trials, even though performance on those trials did not differ from performance on trials without KR. Equivalent IY and SC performances provide support for the benefits of task involvement and deeper information processing when KR is self-controlled in motor skill acquisition. PMID- 29350079 TI - Differences in home blood pressure and pulse rates between singleton and twin pregnancies. AB - Objectives To evaluate home blood pressure (HBP) measurements during pregnancy and postpartum and investigate differences between singleton and twin pregnancies. Methods This prospective study involved normotensive, pregnant women who were planning to give birth at Saitama Medical Centre, Saitama, Japan between September 2013 and March 2017. HBP and pulse rate were measured twice daily and clinical blood pressure values were determined from patient records. Results HBP values were available from 101 participants; 69 women with singleton and 32 women with twin pregnancies. Systolic BP was statistically significantly higher in twin pregnancies from 23 weeks of gestation until 8 weeks after delivery compared with singleton pregnancies. Pulse rate was also statistically significantly higher between 11 and 30 weeks gestation in women with twin pregnancies compared with those with singleton pregnancies. Conclusions BP monitoring is important in the management of twin pregnancies, especially during the later gestational weeks and postpartum period and HBP would facilitate this monitoring. PMID- 29350080 TI - IRF2BP2-RARA t(1;17)(q42.3;q21.2) APL blasts differentiate in response to all trans retinoic acid. PMID- 29350081 TI - Assessment of the anterolateral ligament of the knee by 1.5 T magnetic resonance imaging. AB - Objective This study was performed to evaluate the visibility of the knee's anterolateral ligament (ALL) by magnetic resonance (MR) imaging when evaluating injuries of the ALL in relation to injuries of the anterior cruciate ligament (ACL). Methods Two reviewers retrospectively analyzed MR images for the visibility and dimensions of the ALL and the relationship between ALL and ACL injuries. The intraclass correlation coefficient (ICC) and kappa analysis were used to assess interobserver reliability. The chi-square test was used to assess the relationship between ALL and ACL injuries. Results The entire ALL was viewed on 82% of all MR images. The ICC for ALL visualization ranged from moderate to perfect between the two readers. There was almost perfect agreement between the reviewers when evaluating ALL dimensions. The mean length +/- standard error, median thickness, and mean width +/- standard error of the ALL were 36.5 +/- 0.6 mm, 2.5 mm, and 8.2 +/- 0.2 mm, respectively. A statistically significant relationship was observed between ALL and ACL injuries. Conclusion The ALL was visible on most MR images, allowing ALL injuries to be noted during routine MR image interpretation. Radiologists should note concomitant ACL and ALL injuries as part of their assessments. PMID- 29350083 TI - From "a Fair Game" to "a Form of Covert Research": Research Ethics Committee Members' Differing Notions of Consent and Potential Risk to Participants Within Social Media Research. AB - Social media (SM) research presents new challenges for research ethics committees (RECs) who must balance familiar ethical principles with new notions of public availability. This article qualitatively examines how U.K. REC members view this balance in terms of risk and consent. While it found significant variance overall, there were discernible experience-based trends. REC members with less experience of reviewing SM held inflexible notions of consent and risk that could be categorized as either relying on traditional notions of requiring direct consent, or viewing publicly available data as "fair game." More experienced REC members took a more nuanced approach to data use and consent. We conclude that the more nuanced approach should be best practice during ethical review of SM research. PMID- 29350082 TI - Quantitative DTI metrics in a canine model of Krabbe disease: comparisons versus age-matched controls across multiple ages. AB - Purpose The purpose of this study was to compare quantitative diffusion tensor imaging metrics in dogs affected with a model of Krabbe disease to age-matched normal controls. We hypothesized that fractional anisotropy would be decreased and radial diffusivity would be increased in the Krabbe dogs. Methods We used a highly reproducible region-of-interest interrogation technique to measure fractional anisotropy and radial diffusivity in three different white matter regions within the internal capsule and centrum semiovale in four Krabbe affected brains and three age-matched normal control brains. Results Despite all four Krabbe dogs manifesting pelvic limb paralysis at the time of death, age-dependent differences in DTI metrics were observed. In the 9, 12, and 14 week old Krabbe dogs, FA values unexpectedly increased and RD values decreased. FA values were generally higher and RD values generally lower in both regions of the internal capsule in the Krabbe brains during this period. FA values in the brain from the 16 week old Krabbe dog decreased and were lower than in control brains and RD values increased and were higher than in control brain. Conclusion Our findings suggest that FA and RD in the internal capsule and centrum semiovale are affected differently at different ages, despite disease having progressed to pelvic limb paralysis in all dogs evaluated. In 9, 12, and 14 week old Krabbe dogs, higher FA values and lower RD values are seen in the internal capsule. However, in the 16 week old Krabbe dog, lower FA and higher RD values are seen, consistent with previous observations in Krabbe dogs, as well as observations in human Krabbe patients. PMID- 29350084 TI - Exploring assistive technology use to support cognition in college students with histories of mild traumatic brain injury. AB - PURPOSE: College students with mild traumatic brain injury (mTBI) may experience chronic cognitive deficits necessitating use of external supports for daily task completion. The purpose of this study was to explore cognitive support system selection and use by students with histories of mTBI when completing novel prospective memory tasks. MATERIALS AND METHODS: We implemented a multiple case study, sequential explanatory mixed-methods design with three participants. Participants completed four experimental phases: (1) background history collection, cognitive assessment completion, pre-trial interview, and selection of two external supports for trial phase use; (2) trial Phase 1 (i.e., 10-days); (3) trial Phase 2 (i.e., 10 days); and (4) post-trial exit interview. We examined participants' support type and characteristic preferences and evaluated task execution accuracy when implementing differing supports. RESULTS: Participants expressed both collective and unique cognitive aid preferences before trial completion. Trial phase results revealed that task completion accuracy did not alter substantially between trials; however, personal preferences and perceived usefulness of trialled cognitive aid systems appeared to impact support implementation and effectiveness. Themes emerged from post-trial interview relating to the (a) necessity for differing functions of individual systems and (b) importance of trialling devices prior to selection. CONCLUSIONS: Results emphasize the necessity of person-centred approaches to treatment due to the variability of performance accuracy and system preferences. The cognitive aid selection and implementation intervention protocol piloted in this study appears beneficial for understanding unique strengths and challenges for college students following mTBI and may be useful for clinicians working with individuals with mTBI. Implications for rehabilitation College-aged students with mild traumatic brain injury report unique preferences for no- and high-tech cognitive aids; however, similar patterns emerge relating to preferred system characteristics. Facilitating several trial periods prior to selection and implementation of external cognitive supports for individuals with mild traumatic brain injury is essential given the preference changes that occur post-trial. Implementing a three-phase external cognitive aid selection process appears beneficial for young adults with mild brain injuries. PMID- 29350085 TI - Divergent Classification Methods of Post-Concussion Syndrome after Mild Traumatic Brain Injury: Prevalence Rates, Risk Factors, and Functional Outcome. AB - Mild traumatic brain injury (mTBI) is a common diagnosis and approximately one third of mTBI patients experience a variety of cognitive, emotional, psychosocial, and behavioral post-concussion symptoms. When a cluster of these symptoms persists for more than 3 months they are often classified as post concussion syndrome (PCS). The objective of this study was to determine prevalence rates, risk factors, and functional outcome associated with PCS 6 months after mTBI, applying divergent classification methods. Follow-up questionnaires at 6 months after mTBI included the Rivermead Post-Concussion Symptoms Questionnaire (RPQ) and the Glasgow Outcome Scale Extended (GOSE). The RPQ was analyzed according to different classification methods: the mapped International Classification of Diseases, 10th revision (ICD-10)/Diagnostic and Statistical Manual of Mental Disorders, 4th edition (DSM-IV), the RPQ total score, the RPQ3 and the three-factor model using two different cutoff points (mild or worse and moderate or worse). Our results from a sample of 731 mTBI patients showed that prevalence rates of PCS ranged from 11.4% to 38.7% using divergent classification methods. According to all eight methods, 6.3% (n = 46) of mTBI patients experienced PCS. Applying the divergent classification methods resulted in a different set of predictors being statistically significantly associated with PCS, and a different percentage of overlap with functional impairment, measured with the GOSE. In conclusion, depending on the classification method and rating score used, prevalence rates of PCS deviated considerably. For future research, consensus regarding the diagnostic criteria for PCS and the analysis of the RPQ should be reached, to enhance comparability of studies regarding PCS after mTBI. PMID- 29350086 TI - Hematoma clearance as a therapeutic target in intracerebral hemorrhage: From macro to micro. AB - Despite the absence of an intervention shown to improve outcomes in intracerebral hemorrhage, preclinical work has led to a greater understanding of the pathologic pathways of brain injury. Methods targeting hematoma clearance through both macroscopic (surgical) and microscopic (endogenous phagocytosis) means are currently under investigation, with multiple clinical trials ongoing. Macroscopic methods for removal involve both catheter- and endoscope-based therapies to remove the hematoma through minimally invasive surgery. Microscopic methods targeting hematoma clearance involve augmenting endogenous clearance pathways for red blood cells and altering the balance between phagocytosis and red blood cell lysis with the release of potentially harmful constituents (e.g. hemoglobin and iron) into the extracellular space. PMID- 29350087 TI - Segmentation of tongue shapes during vowel production in magnetic resonance images based on statistical modelling. AB - Quantification of the anatomic and functional aspects of the tongue is pertinent to analyse the mechanisms involved in speech production. Speech requires dynamic and complex articulation of the vocal tract organs, and the tongue is one of the main articulators during speech production. Magnetic resonance imaging has been widely used in speech-related studies. Moreover, the segmentation of such images of speech organs is required to extract reliable statistical data. However, standard solutions to analyse a large set of articulatory images have not yet been established. Therefore, this article presents an approach to segment the tongue in two-dimensional magnetic resonance images and statistically model the segmented tongue shapes. The proposed approach assesses the articulator morphology based on an active shape model, which captures the shape variability of the tongue during speech production. To validate this new approach, a dataset of mid-sagittal magnetic resonance images acquired from four subjects was used, and key aspects of the shape of the tongue during the vocal production of relevant European Portuguese vowels were evaluated. PMID- 29350088 TI - The use of synthetic ligaments in the design of an enhanced stability total knee joint replacement. AB - Current total knee replacement designs work to address clinically desired knee stability and range of motion through a balance of retained anatomy and added implant geometry. However, simplified implant geometries such as bearing surfaces, posts, and cams are often used to replace complex ligamentous constraints that are sacrificed during most total knee replacement procedures. This article evaluates a novel total knee replacement design that incorporates synthetic ligaments to enhance the stability of the total knee replacement system. It was hypothesized that by incorporating artificial cruciate ligaments into a total knee replacement design at specific locations and lengths, the stability of the total knee replacement could be significantly altered while maintaining active ranges of motion. The ligament attachment mechanisms used in the design were evaluated using a tensile test, and determined to have a safety factor of three with respect to expected ligamentous loading in vivo. Following initial computational modeling of possible ligament orientations, a physical prototype was constructed to verify the function of the design by performing anterior/posterior drawer tests under physiologic load. Synthetic ligament configurations were found to increase total knee replacement stability up to 94% compared to the no-ligament case, while maintaining total knee replacement flexion range of motion between 0 degrees and 120 degrees , indicating that a total knee replacement that incorporates synthetic ligaments with calibrated location and lengths should be able to significantly enhance and control the kinematic performance of a total knee replacement system. PMID- 29350089 TI - A comparative analysis of internal bone remodelling concepts in a novel implant for direct skeletal attachment of limb prosthesis evaluation: A finite element analysis. AB - Nowadays, numerous internal bone remodelling concepts are under development, in order to estimate long-term functionality of implants by evaluating the intensity of stress-shielding effect. This effect is also analysed for the implants for direct skeletal attachment, considered as a better exoprosthesis fixation method than prosthetic sockets. Most of bone remodelling approaches are based on basic concepts, differing with certain assumptions, which may affect the accuracy of the results. This article compares commonly used internal bone remodelling concepts and evaluates the functionality of the proposed Limb Prosthesis Osseointegrated Fixation System for direct skeletal attachment of limb prosthesis in comparison with two currently available implants: the Intraosseous Transcutaneous Amputation Prosthesis and the Osseointegrated Prostheses for the Rehabilitation of Amputees. Three concepts were chosen: without and with lazy zone and with the use of quadratic formula which considers bone overloading. Therefore, three finite element models were created with identical femur implanted with each of analysed implants. The implants were loaded with loads that refer to two stages of gait cycle (heel strike and toe-off). The analysed concepts have given similar results, allowing to assume that each of them can be successfully used to estimate internal bone remodelling around analysed implants for direct skeletal attachment of limb prosthesis. The results also present higher functionality of the proposed implant for direct skeletal attachment of limb prosthesis due to a significant reduction in stress-shielding in the analysed areas around implant in comparison with the Intraosseous Transcutaneous Amputation Prosthesis and the Osseointegrated Prostheses for the Rehabilitation of Amputees. It suggests that the proposed design is a better alternative to the currently used solutions. PMID- 29350090 TI - Demographic determinants and outcome of in vitro fertilization (IVF) services in Saudi Arabia. AB - Objectives To assess the demographic characteristics and outcomes of couples undergoing in vitro fertilisation (IVF) treatment at a private hospital in Al Qassim district, Saudi Arabia. Methods For this retrospective study, information was extracted from the hospital electronic database and IVF unit medical records. Results 2259 couples underwent 2703 IVF/ICSI cycles during 2014 to 2016. The utilization rate was approximately 1000 cycle per million of inhabitants. Mean ages +/- standard deviation (SD) for women and men were 32.9 +/- 5.7 and 39.2 +/- 7.4 years, respectively. More couples were diagnosed with secondary infertility (55.2%) than primary infertility (44.8%). Male factor was the commonest single indication for IVF (36.2%). Mean +/- SD infertility duration was 4.70 +/- 4.03 years. Overall, 949 couples had a successful pregnancy. Age-specific pregnancy rates (PR) were highest for women <35 years (39.8%) and lowest for women >40 years (11.6%). Male age and infertility duration had no effect on PR but sperm source (fresh vs. frozen) and female age had significant impacts. However, fresh sperm was used in 90.6% cycles whereas frozen sperm was used in 9.4% cycles. Conclusions IVF treatment outcomes in the Al Qassim district are within the boundaries of average international success rates. Infertile couples seeking IVF services should be counselled with regard to important prognostic factors. PMID- 29350091 TI - Stent-assisted coiling of cerebral aneurysms with the Neuroform Atlas stent. AB - Objectives The Neuroform Atlas stent (AS) is the smallest intracranial stent with an open-cell design. This study reports the first clinical experience with AS. Methods All intracranial aneurysms treated by stent-assisted coiling using a single AS in a single institution were retrospectively evaluated. Patient demographics, aneurysm characteristics, angles between the parent artery and stented branch, technical success, and clinical and angiographic follow-up were analyzed. Results Fifty-five consecutive aneurysms treated with AS-assisted coiling were included. Of these, 69.1% were located distal to the circle of Willis. Technical success rate was 100%. The mean diameters of proximal and distal parent arteries were 2.62 mm (range 1.5-4.4) and 1.8 mm (range 0.8-3.5), respectively. Except for a minor stroke in a patient who completely discontinued antiplatelet therapy on postoperative day 4, there were no clinical events with permanent sequelae, and 94.1% of patients had Raymond-Roy score of 1 or 2 aneurysmal occlusion at a mean follow-up duration of 7.9 months. Although the angle between the parent artery and the stented branch increased significantly ( p < 0.001) with time, the angular change at follow-up was only 16.45 +/- 11.03 degrees and was inversely correlated both with preoperative angle and the diameter of the distal parent artery ( r = -0.465 and r = -0.433, respectively, p = 0.004 for both). Conclusion AS-assisted coiling was associated with a favorable early clinical outcome and angiographic results in this series. This stent can be used for distally located aneurysms and results in minimal alteration of the arterial anatomy. PMID- 29350092 TI - Focus on the target: Angiographic features of the fistulous point and prognosis of transvenous embolization of cavernous sinus dural arteriovenous fistula. AB - Background and purpose Transvenous embolization (TVE) is widely utilized as an effective and safe treatment option for cavernous sinus dural arteriovenous fistula (CS-dAVF); however, detecting the exact location of the fistula is challenging. The present study identified the angiographic features of the fistulous point and evaluated the match with the microcatheter tip and fistulous point. Materials and methods An analysis cohort of 45 consecutive patients with CS-dAVF treated by TVE was analyzed retrospectively. The patients were divided into two groups, 22 matches and 23 mismatches, according to whether the fistulous point and the microcatheter tip were in the same compartment of the cavernous sinus (CS). The angiographic findings, the location of the fistulas, the position of the microcatheter tips, the volume of embolic materials, complications, and outcomes were assessed. Results Several angiographic features defined the fistulous points, such as the early opacified area, jellyfish-like sign, changes in the density of the contrast medium, the juncture of different arterial supply, enlarged feeders, and hand-injection angiograms. The fistulas were primarily in the posterosuperior portion of the CS (80%) and medial side (73.3%) according to the internal carotid artery. Both groups achieved effective TVE; the matched group required less embolic material than the mismatched group ( p = 0.024). The patients with cranial nerve dysfunction (CND) required more embolic materials than others ( p = 0.032). Conclusion The fistulous point in most of the CS-dAVFs could be isolated by careful analysis of the angiography images. The matching of the microcatheter tip and fistulous point in the same compartment of CS can reduce the dosage of embolic materials, and a low volume of embolic materials might cause fewer CND complications. PMID- 29350093 TI - Thiobarbituric acid-reactive substances relate to arterial stiffness and blood pressure in 6 to 8-year-old boys stratified by maternal risk. AB - Early cardiovascular disease (CVD) onset can be inflicted by familial cardiovascular and lifestyle risk factors. We aimed to compare phenotypic characteristics and explore associations between oxidative stress and vascular function in boys stratified by maternal cardiovascular and lifestyle risk. We included 40 Black and 41 White boys (ages 6-8 years), along with the biological mother of each child. The study population was divided into two groups (nonmaternal risk vs. maternal risk) according to maternal risk predetermined by their selfreported cardiovascular and lifestyle risk factors. Pulse wave velocity (PWV) was measured at various sites and blood pressures were recorded. Urine samples were collected for analyses of thiobarbituric acid-reactive substances (TBARS), 8-hydroxy-2-deoxy guanosine (8-OHdG), albumin, and creatinine. Higher levels of urinary albumin to creatinine ratio (uACR) were found in the maternal risk group compared to the nonmaternal risk group (p = .038). Multiple regression analysis in the maternal risk group revealed diastolic blood pressure (R2 = 0.159; beta = 0.293; p = .050), carotid femoral PWV (R2 = 0.158; beta = 0.297; p = .038) and carotid dorsalis pedis PWV (adj R2 = 0.322; beta = 0.505; p < .001) to be positively associated with TBARS, while an inverse association of uACR (R2 = 0.161; beta = -0.261; p = .046) with TBARS was observed. Also, in the maternal risk group, independent associations of DBP (R2 = 0.273; beta = 0.289; p = .040) and uACR (R2 = 0.283; beta = 0.268; p = .027) with 8-OHdG were indicated. In boys, as young as 6 years of age, oxidative stress related to arterial stiffness and diastolic blood pressure was observed. This association was only evident in boys with linked maternal lifestyle and cardiovascular risk factors, suggesting potential family-related early onset of cardiovascular risk. PMID- 29350095 TI - The Bandwidth of Diagnostic Horizontal Structure for Face Identification. AB - Horizontally oriented spatial frequency components are a diagnostic source of face identity information, and sensitivity to this information predicts upright identification accuracy and the magnitude of the face-inversion effect. However, the bandwidth at which this information is conveyed, and the extent to which human tuning matches this distribution of information, has yet to be characterized. We designed a 10-alternative forced choice face identification task in which upright or inverted faces were filtered to retain horizontal or vertical structure. We systematically varied the bandwidth of these filters in 10 degrees steps and replaced the orientation components that were removed from the target face with components from the average of all possible faces. This manipulation created patterns that looked like faces but contained diagnostic information in orientation bands unknown to the observer on any given trial. Further, we quantified human performance relative to the actual information content of our face stimuli using an ideal observer with perfect knowledge of the diagnostic band. We found that the most diagnostic information for face identification is conveyed by a narrow band of orientations along the horizontal meridian, whereas human observers use information from a wide range of orientations. PMID- 29350094 TI - Medium-chain acyl-CoA dehydrogenase deficiency: Two novel ACADM mutations identified in a retrospective screening. AB - Objective The aim of this study was to determine whether an expanded newborn screening programme, which is not yet available in Slovenia, would have detected the first two patients with medium-chain acyl-CoA dehydrogenase (MCAD) deficiency in the country. Two novel ACADM mutations are also described. Methods Both patients were diagnosed clinically; follow-up involved analysis of organic acids in urine, acylcarnitines in dried blood spots, and genetic analysis of ACADM. Cut off values of acylcarnitines in newborns were established using analysis of 10,000 newborns in a pilot screening study. Results In both patients, analysis of the organic acids in urine showed a possible beta-oxidation defect, while the specific elevation of acylcarnitines confirmed MCAD deficiency. Subsequent genetic analysis confirmed the diagnosis; both patients were compound heterozygotes, each with one novel mutation (c.861 + 2T > C and c.527_533del). The results from a retrospective analysis of newborn screening cards clearly showed major elevations of MCAD-specific acylcarnitines in the patients. Conclusions An expanded newborn screening programme would be beneficial because it would have detected MCAD deficiency in both patients before the development of clinical signs. Our study also provides one of the first descriptions of ACADM mutations in Southeast Europe. PMID- 29350096 TI - alpha-Tocopherol protected against cobalt nanoparticles and cocl2 induced cytotoxicity and inflammation in Balb/3T3 cells. AB - CONTEXT: Currently, tissue damage induced by cobalt nanoparticles (CoNPs) and cobalt ions (Co2+) are the most serious adverse effect in the patients with metal on-metal hip prostheses. Therefore, an urgent need exists for the identification of the mechanisms and the development of therapeutic strategies to limit it. OBJECTIVE: We aimed to explore the mechanisms of cytotoxicity of CoNPs and Co2+ and developed strategies to reduce this cytotoxicity with alpha-tocopherol treatment. METHODS: To evaluate the protective effect of alpha-tocopherol, Balb/3T3 cells were pretreated with 10 MUM alpha-tocopherol for 24 h. The cells were then exposed to different concentrations of CoNPs and Co2+ for 12 h, 24 h and 48 h. The cell viabilities, reactive oxygen species (ROS), inflammatory cytokines and MAP kinase (MAPK) levels were measured. RESULTS: CoNPs and Co2+ can induce the increase of ROS and inflammatory cytokines in Balb/3T3 cells, such as tumor necrosis factor alpha (TNF-alpha), interleukin-1beta (IL-1beta) and interleukin-6 (IL-6). However, alpha-tocopherol pretreatment can significantly prevent cytotoxicity induced by CoNPs and Co2+, decrease ROS production and decrease levels of inflammatory cytokines in Balb/3T3 cells. Additionally, MAPK pathway may be involved in the protection of alpha-tocopherol against cytotoxicity induced by CoNPs and Co2+ in vitro. CONCLUSIONS: Our results provide new insights into the potential therapeutic use of alpha-tocopherol in the prevention and treatment of various oxidative- or inflammatory stress-related inflammation and injuries. PMID- 29350097 TI - Paternal Perinatal Depression Assessed by the Edinburgh Postnatal Depression Scale and the Gotland Male Depression Scale: Prevalence and Possible Risk Factors. AB - Several studies have used the Edinburgh Postnatal Depression Scale (EPDS), developed to screen new mothers, also for new fathers. This study aimed to further contribute to this knowledge by comparing assessment of possible depression in fathers and associated demographic factors by the EPDS and the Gotland Male Depression Scale (GMDS), developed for "male" depression screening. The study compared EPDS score >=10 and >=12, corresponding to minor and major depression, respectively, in relation to GMDS score >=13. At 3-6 months after child birth, a questionnaire was sent to 8,011 fathers of whom 3,656 (46%) responded. The detection of possibly depressed fathers by EPDS was 8.1% at score >=12, comparable to the 8.6% detected by the GMDS. At score >=10, the proportion detected by EPDS increased to 13.3%. Associations with possible risk factors were analyzed for fathers detected by one or both scales. A low income was associated with depression in all groups. Fathers detected by EPDS alone were at higher risk if they had three or more children, or lower education. Fathers detected by EPDS alone at score >=10, or by both scales at EPDS score >=12, more often were born in a foreign country. Seemingly, the EPDS and the GMDS are associated with different demographic risk factors. The EPDS score appears critical since 5% of possibly depressed fathers are excluded at EPDS cutoff 12. These results suggest that neither scale alone is sufficient for depression screening in new fathers, and that the decision of EPDS cutoff is crucial. PMID- 29350098 TI - Commentary to 18F-GP1, a Novel PET Tracer Designed for High-Sensitivity, Low Background Detection of Thrombi: Imaging Activated Platelets in Clots-Are We Getting There? AB - Thrombus formation can lead to heart attacks, stroke and pulmonary embolism, which are major causes of mortality. Current standard diagnostic imaging methods detect anatomic abnormalities such as vascular flow impairment but have limitations. By using a targeted molecular imaging approach critical components of a pathology can be selectively visualized and exploited for an improved diagnosis and patient management. The GPIIb/IIIa receptor is abundantly and specifically exposed on activated platelets and is the key receptor in thrombus formation. This commentary describes the current status of GPIIb/IIIa-based PET imaging approaches with a focus on the recently published preclinical data of the small-molecule PET tracer 18F-GP1. Areas of future research and potential clinical applications are discussed that may lead to an improved detection of critical thromboembolic events and an optimization of available antithrombotic therapies by tracking activated platelets. PMID- 29350099 TI - Does shortening the pitch make junior cricketers bowl better? AB - In order to get bounce and movement seam bowlers need to bowl the ball "into" the pitch. Standard deliveries by elite players are typically projected at around 7 degrees below horizontal. In contrast, young players currently often need to release the ball almost horizontally in an effort to get the ball to bounce close enough to the batter. We anticipated that shortening the pitch could be a simple way to help young bowlers to release the ball at a better angle and with more consistency. Twenty county or best in club age group under 10 and under 11 seam bowlers were analysed bowling indoors on two different pitch lengths. They were found to project the ball on average 3.4 degrees further below horizontal on a 16 yard pitch compared with a 19 yard pitch, while ball speed and position at release changed negligibly. Pitch length did not affect the consistency of the release parameters. The shorter pitch led to a ball release angle closer to that of elite bowlers without changing release speed, and this should enable players to achieve greater success and develop more variety in their bowling. PMID- 29350100 TI - Transorbital Doppler with carotid siphon monitoring detects right-to-left shunt effectively. AB - Background Transtemporal Doppler (TTD) with middle cerebral artery (MCA) is widely used for right-to-left shunt (RLS) detection. However, an alternative method for patients without suitable temporal bone windows should be established. The present study prospectively evaluated the effectiveness of transorbital Doppler (TOD) with carotid siphon (CS) monitoring in detecting RLS. Methods A total of 357 subjects with sufficient temporal bone windows underwent simultaneous TTD with MCA and TOD with CS. After injection of microbubbles, the numbers of artificial high-intensity signals were recorded at rest and after Valsalva maneuver. Results TOD with CS detected RLS in 146 patients. Sensitivity was 97.1%, specificity 95%, positive predictive value 92.5%, and negative predictive value 98.1%. The total positive rates for RLS detection by CS (40.9%) and MCA (37.8%) monitoring were comparable without significant difference, but TOD with CS detected significantly more grade 2 and 3 RLS than TTD with MCA (p = 0.001). The RLS rates of cryptogenic stroke patients was significantly higher than that of healthy controls, and RLS in cryptogenic stroke was remarkably higher than that in transient ischemia attack patients (p < 0.05). TOD with CS examined significantly more grade 2 and 3 RLSs than the MCA approach in the cryptogenic stroke patients (p = 0.037). Conclusion TOD with CS monitoring is able to detect RLS effectively in different populations including healthy subjects, cryptogenic stroke, transient ischemia attack, and migraine patients. In comparing to the TTD with MCA approach, TOD with CS monitoring could detect comparable rate of RLS, but more high grades of RLS. PMID- 29350101 TI - Biomimetic Composite Scaffold Containing Small Intestinal Submucosa and Mesoporous Bioactive Glass Exhibits High Osteogenic and Angiogenic Capacity. AB - Biomaterials with excellent osteogenic and angiogenic activities are desirable to repair massive bone defects. Decellularized matrix from porcine small intestinal submucosa (SIS) has attracted particular attention for tissue regeneration because it has strong angiogenic effects and retains plentiful bioactive components. However, it has inferior osteoinductivity and osteoconductivity. In this study, we developed porous composite of SIS combined with mesoporous bioactive glass (SIS/MBG) with the goal of improving the mechanical and biological properties. SIS/MBG scaffolds showed uniform interconnected macropores (~150 MUm), high porosity (~76%), and enhanced compressive strength (~0.87 MPa). The proliferation and osteogenic gene expression (Runx2, ALP, Ocn, and Col Ialpha) of rat bone marrow stromal cells (rBMSCs) as well as the proliferation, angiogenic gene expression (VEGF, bFGF, and KDR), and tube formation capacity of human umbilical vein endothelial cells (HUVECs) in SIS/MBG scaffolds were significantly upregulated compared with nonmesoporous bioactive glass (BG) modified SIS (SIS/BG) and SIS-only scaffolds. Western blot analysis revealed that SIS/MBG induced rBMSCs to osteogenic differentiation through the activation of Wnt/beta-Catenin signaling pathway, and SIS/MBG enhanced angiogenic activity of HUVEC through the activation of PI3k/Akt pathways. The in vivo results demonstrated that SIS/MBG scaffolds significantly enhanced new bone formation and neovascularization simultaneously in critical-sized rat calvarial defects as compared with SIS/BG and SIS. Collectively, the osteostimulative and angiostimulative biomimetic composite scaffold SIS/MBG represents an exciting biomaterial option for bone regeneration. PMID- 29350102 TI - Preoperative Clinical and Sonographic Predictors for Lateral Cervical Lymph Node Metastases in Sporadic Medullary Thyroid Carcinoma. AB - BACKGROUND: Total thyroidectomy and cervical lymph node (LN) dissection is generally recommended in patients with medullary thyroid carcinoma (MTC). However, there is no clear evidence for whom to perform prophylactic lateral neck dissection in MTC patients without evident lateral cervical lymph node (LCLN) metastasis in preoperative images. This study evaluated the preoperative features for predicting the LCLN metastasis of MTC. METHODS: The study included 26 MTC patients with LCLN metastasis at initial surgery (N1b group) and 47 MTC patients without any LN metastasis or recurrence of disease (N0-NED group). The association between LCLN metastasis and preoperative clinical and sonographic characteristics (size, location, solid component, shape, margin, echogenicity, calcification, and subcapsular location of the tumor) were evaluated. RESULTS: There were no significant differences in age and sex between the N1b and N0-NED groups. Preoperative serum levels of calcitonin >65 pg/mL were associated with LCLN metastasis (p < 0.001). In preoperative neck ultrasonography (US), patients in the N1b group were more commonly found with a larger tumor (>1.5 cm) of irregular shape with a spiculated margin and a subcapsular location than those in the N0-NED group (p = 0.029, p < 0.001, p < 0.001, and p < 0.001, respectively). Increases in the number of these LCLN metastasis-related features were significantly associated with higher risk for LCLN metastasis (p < 0.001). The presence of two or more predictors was an appropriate cutoff point for predicting LCLN metastasis of MTC with 73.1% sensitivity and 91.5% specificity. CONCLUSIONS: MTC tumors with high preoperative calcitonin levels (>65 pg/mL), larger size (>1.5 cm), irregular shape, spiculated margins, and subcapsular locations in the neck US are at higher risk for LCLN metastasis. MTC patents with fewer than two predictors might be suitable for treatment without prophylactic LCLN dissection. PMID- 29350103 TI - Society for the History of Alchemy and Chemistry Award Scheme 2018. PMID- 29350104 TI - The importance of perfusion index monitoring in evaluating the efficacy of stellate ganglion blockage treatment in Raynaud's disease. AB - Stellate ganglion blockage (SGB) is a method used for treating Raynaud's phenomenon (RP). This study primarily aimed to determine whether the perfusion index (PI) can be used an alternative to Horner's signs in evaluating the efficacy of SGB in patients diagnosed with RP. In a total of 40 patients, aged 18 65 years and diagnosed with primary RP, SGB was applied for 5 days on the same side with the 2-finger method, using 6 mL of 5% levobupivacaine at the 7th cervical vertebra level. The PI values were recorded from the distal end of the 2nd finger of the upper extremity on the side applied with the block at baseline and at 5, 15, 30, 60 and 120 min. The onset time of Horner findings was recorded. The PI values and visual analogue scale (VAS) pain scores were recorded pre treatment and after 2 weeks.When the PI values of the 40 patients were examined, a 62.7% increase was observed from baseline to the first session at 5 min (p < 0.05). When all sessions were evaluated, a statistically significant increase was determined in the PI values measured at 5, 15, 30, 60 and 120 min compared with the baseline PI values. There was a statistically significant decrease in the post-treatment VAS pain scores and a statistically significant increase in the post-treatment PI values (p < 0.05). By eliminating peripheral vasospasm with the application of SGB in patients with RP, the distal artery blood flow and PI are increased. PI measurement is a more objective method and therefore could be used as an alternative to Horner findings in evaluating the success of SGB. PI is a non-invasive and simple measurement and also an earlier indicator in evaluating the success of SGB than Horner's signs. PMID- 29350105 TI - Persistent modification of cognitive control through attention training. AB - An important aspect of cognitive control is to direct attention towards relevant information and away from distracting information. This attentional modulation is at the core of several influential frameworks, but its trainability and generalisability remain unclear. To address this issue, two groups of subjects were invited to the lab on three consecutive days. On Day 2, they performed an arrow priming task which trained them to adopt an attentional bias towards (prime attended group) or away from (prime-diverted group) a potentially conflicting prime. Direct generalisation of the attention training was measured by assessing task performance on the same task without the attentional manipulation directly after training (Day 2) and the next day (Day 3), and comparing it to baseline (Day 1). Performance on this direct transfer task showed a difference in attentional modulation between groups directly after training that persisted the next day. No cross-task generalisation was found to two other tasks that were closely or more remotely related to the trained task. Together, these results are in accordance with cognitive control frameworks that limit attentional modulation to the specific features of the trained task. PMID- 29350106 TI - Cross-cultural differences in adult Theory of Mind abilities: A comparison of native-English speakers and native-Chinese speakers on the Self/Other Differentiation task. AB - Theory of Mind (ToM) refers to the ability to compute and attribute mental states to ourselves and other people. It is currently unclear whether ToM abilities are universal or whether they can be culturally influenced. To address this question, this research explored potential differences in engagement of ToM processes between two different cultures, Western (individualist) and Chinese (collectivist), using a sample of healthy adults. Participants completed a computerised false-belief task, in which they attributed beliefs to either themselves or another person, in a matched design, allowing direct comparison between "Self"- and "Other"-oriented conditions. Results revealed that both native-English speakers and native-Chinese individuals responded significantly faster to self-oriented than other-oriented questions. Results also showed that when a trial required a "perspective-shift," participants from both cultures were slower to shift from Self-to-Other than from Other-to-Self. Results indicate that despite differences in collectivism scores, culture does not influence task performance, with similar results found for both Western and non-Western participants, suggesting core and potentially universal similarities in the ToM mechanism across these two cultures. PMID- 29350107 TI - The effects of ethnicity, musicianship, and tone language experience on pitch perception. AB - Language and music are intertwined: music training can facilitate language abilities, and language experiences can also help with some music tasks. Possible language-music transfer effects are explored in two experiments in this study. In Experiment 1, we tested native Mandarin, Korean, and English speakers on a pitch discrimination task with two types of sounds: speech sounds and fundamental frequency (F0) patterns derived from speech sounds. To control for factors that might influence participants' performance, we included cognitive ability tasks testing memory and intelligence. In addition, two music skill tasks were used to examine general transfer effects from language to music. Prior studies showing that tone language speakers have an advantage on pitch tasks have been taken as support for three alternative hypotheses: specific transfer effects, general transfer effects, and an ethnicity effect. In Experiment 1, musicians outperformed non-musicians on both speech and F0 sounds, suggesting a music-to language transfer effect. Korean and Mandarin speakers performed similarly, and they both outperformed English speakers, providing some evidence for an ethnicity effect. Alternatively, this could be due to population selection bias. In Experiment 2, we recruited Chinese Americans approximating the native English speakers' language background to further test the ethnicity effect. Chinese Americans, regardless of their tone language experiences, performed similarly to their non-Asian American counterparts in all tasks. Therefore, although this study provides additional evidence of transfer effects across music and language, it casts doubt on the contribution of ethnicity to differences observed in pitch perception and general music abilities. PMID- 29350108 TI - The role of stimulus comparison in animal perceptual learning: Effects of a distractor placement. AB - Research on perceptual learning shows that the way stimuli are presented leads to different outcomes. The intermixed/blocked (I/B) effect is one of these outcomes, and different mechanisms have been proposed to explain it. In human research, it seems that comparison between stimuli is important, and the placement of a distractor between the pre-exposed stimuli interferes with the effect. Results from animal research are usually interpreted in different terms because the type of procedure normally used in animal perceptual learning does not favour comparison. In our experiments, we explore the possibility that a distractor placed between the to-be-discriminated stimuli may interfere with the perceptual learning process in rats. In Experiment 1, two flavoured solutions are presented in an I/B fashion, with a short time lapse between them to favour comparison, showing the typical I/B effect. In Experiment 2, we introduced a distractor in between the solutions, abolishing this effect. Experiment 3 further replicates this by comparing two intermixed groups with or without distractor. The results replicate the findings from human research, suggesting that comparison also plays an important role in animal perceptual learning. PMID- 29350110 TI - Construct validity of the resistance training skills battery in children aged 7 10 years. AB - The current study sought to examine the construct validity of the Resistance Training Skills Battery for Children (RTSBc), a movement screen purported to assess resistance training skill in children. Children aged 7-10 years (n = 27, 21 males, 6 females) undertook measures of resistance training skill via the RTSBc, motor competence and muscular fitness. Using a median split for RTSBc scores, children were categorised as high or low resistance training competence. Univariate ANCOVAs, controlling for maturation, were used to examine whether measures of muscular fitness and motor competence scores differed as a function of RTSBc competence. Children who were classified as high for resistance training competence had significantly better motor competence (P = .001) and significantly faster 10 m sprint speed (P = .001). However, medicine ball throw and standing long jump scores as well as peak and average isokinetic muscle strength did not differ as a function of RTSBc (P > 0.05). In all cases maturation was significant as a covariate. This study is the first to demonstrate construct validity of the RTSBc as a measure of general motor competence and sprint speed, but not strength, in children aged 7-10 years. PMID- 29350109 TI - Tertiary Care Experience of Sorafenib in the Treatment of Progressive Radioiodine Refractory Differentiated Thyroid Carcinoma: A Korean Multicenter Study. AB - BACKGROUND: Sorafenib, a multi-kinase inhibitor, is approved for the treatment of patients with radioactive iodine (RAI)-refractory differentiated thyroid cancer (DTC). This study evaluated the efficacy and safety of sorafenib in real-world clinical practice and compared the results to those of the DECISION trial. The clinical features associated with better clinical outcomes after sorafenib treatment were also evaluated. METHODS: This multicenter, retrospective cohort study evaluated 98 patients with progressive RAI-refractory DTC who were treated with sorafenib in six tertiary hospitals in Korea. The primary objective was the progression-free survival (PFS) according to Response Evaluation Criteria In Solid Tumors v1.1. Overall survival, response rate (defined as the best objective response according to Response Evaluation Criteria In Solid Tumors v1.1), and safety were also evaluated. RESULTS: The median PFS was 9.7 months; median overall survival was not reached during follow-up. Partial responses and stable disease were achieved in 25 (25%) and 64 (65%) patients, respectively. Stable disease of >6 months was achieved in 41 (42%) patients. Subgroup analyses identified several prognostic indicators of a better PFS: absence of disease related symptoms (hazard ratio [HR] = 0.5; p = 0.041), lung-only metastasis (HR = 0.4; p = 0.048), a daily maintenance dose >=600 mg (HR = 0.3; p = 0.005), and a thyroglobulin reduction >=60% (HR = 0.4; p = 0.012). The mean daily dose of sorafenib was 666 +/- 114 mg, and drug withdrawals due to adverse events (AEs) occurred in 13% of patients. AEs and serious AEs were reported in 93 (95%) and 40 (41%) patients, respectively. The most frequent AE was hand-foot skin reaction (76%). CONCLUSIONS: The PFS of progressive RAI-refractory DTC patients treated with sorafenib was consistent with the findings of the DECISION trial. Disease related symptoms, lung-only metastasis, a daily maintenance dose, and thyroglobulin reduction were significantly associated with PFS. These results suggest that sorafenib is an effective treatment option for patients with progressive RAI-refractory DTC. PMID- 29350111 TI - Sustained viral suppression with co-administration of oxcarbazepine and dolutegravir. AB - Co-administration of dolutegravir and oxcarbazepine has been reported to reduce levels of dolutegravir and therefore is contraindicated due to insufficient data to make dosing recommendations. We present eight cases in which patients with human immunodeficiency virus (HIV) inadvertently received oxcarbazepine while concurrently receiving 50 mg of dolutegravir daily as part of their antiretroviral therapy. Upon further evaluation, lab results revealed that despite the risk of decreased levels of dolutegravir due to possible oxcarbazepine enzyme induction, patients maintained at or near virologic suppression (viral load <20 copies/ml). Suppression was maintained in patients virally suppressed prior to oxcarbazepine initiation as well as in patients receiving high doses of oxcarbazepine (>1200 mg). All patients self-reported complete adherence to oxcarbazepine and dolutegravir. Furthermore, careful review of additional patient medications suggested no other identifiable drug interactions that could have affected their antiretroviral therapy. This case series suggests that despite the well-documented drug interaction, concomitant administration of oxcarbazepine and dolutegravir in the clinical setting did not adversely affect viral suppression in patients with HIV. PMID- 29350112 TI - A comparison of HIV-risk behaviors between young black cisgender men who have sex with men and young black transgender women who have sex with men. AB - This study compared sexually transmitted infection (STI)-associated risks between young Black cisgender men who have sex with men (YBMSM) and young Black transwomen who have sex with men (YBTWSM). Comparisons pertained to: (1) prevalence of infections; (2) sexual risk; (3) partner-related risks; and (4) socioeconomic marginalization. YBMSM (n = 577) and YBTWSM (n = 32) were recruited from an STI clinic in the USA. Volunteers completed a computer-assisted self interview and medical records were abstracted for STI/HIV information. Significantly greater prevalence of pharyngeal Chlamydia ( P < .001) and pharyngeal gonorrhea ( P = .04) occurred among YBTWSM; however, both associations were moderated and only significant for HIV-uninfected volunteers. YBTWSM had more oral sex partners and more frequent engagement in oral sex. The number of new sex partners for anal receptive sex was greater in YBTWSM. YBTWSM were more likely to exchange sex for money/drugs ( P < .001), have sex with men recently in prison ( P < .001), who were "anonymous" ( P = .004), or who were "one night stands" ( P < .001). YBTWSM were more likely to depend on sex partners for money food, etc. ( P < .001), to miss meals due to lack of money ( P = .01), and to report having ever being incarcerated ( P = .009). Compared to cisgender YBMSM, YBTWSM experience multiple risk factors relative to the acquisition/transmission of STIs and HIV. PMID- 29350113 TI - Asymptomatic urethral lymphogranuloma venereum: a case report. AB - Since 2003, there has been a resurgence of lymphogranuloma venereum (LGV), a variant of Chlamydia trachomatis (CT), among men who have sex with men (MSM) in several urban areas of Europe and North America. LGV infection occurs most often at anal sites causing proctitis. Urethral and oropharyngeal infections are rare. In Quebec, LGV incidence has been increasing exponentially in recent years and the current guidelines support systematic LGV genotype testing among anorectal CT positive samples only. This case report describes a patient with a urethral LGV infection, remarkable due to its prolonged asymptomatic development prior to the manifestation of an inguinal bubo. Physicians should be vigilant of potential cases of LGV and forward CT-positive samples occurring among individuals with LGV risk factors for genotype testing. PMID- 29350114 TI - The influence of solid retention time on IFAS-MBR systems: analysis of system behavior. AB - A University of Cape Town Integrated Fixed-Film Activated Sludge Membrane Bioreactor (UCT-IFAS-MBR) pilot plant was operated at different values of the sludge retention time (SRT). Three SRTs were investigated at different durations: indefinitely, 30 and 15 days. The organic carbon, nitrogen and phosphorus removal, kinetic/stoichiometric parameters, membrane fouling tendency and sludge filtration properties were assessed. The findings showed that by decreasing the SRT, the pilot plant could maintain excellent carbon removal efficiencies throughout the experiments. In contrast, the biological carbon removal showed a slight nitrification and was slightly affected by the decrease of the SRT, showing high performance (approximately 91%, on average). Thus, the biofilm might have helped sustain the nitrification throughout the experiments. The average phosphorus removal performance increased slightly with a decrease in SRT, achieving the maximum efficiency (61.5%) at a SRT of 15 days. After a 30-day SRT, an increase in resistance due to pore blocking and a general worsening of the membrane filtration properties occurred. PMID- 29350115 TI - [Haemolysis: role of the direct antiglobulin test and eluate]. AB - Haemolytic anaemia is the result of an abnormal breakdown of red blood cells. The direct antiglobulin test (DAT), also known as the direct Coombs test, can be used to determine the cause of the haemolysis. The DAT distinguishes between immune and non-immune causes of haemolysis. However, the DAT should not be used in screening for haemolysis. When the DAT is performed without an indication for in vivo haemolysis, there is a high risk of false-positive results. To increase the specificity of the DAT, the eluate can be tested to determine the specificity of the autoantibodies. In this article we present two cases of haemolytic anaemia in which the DAT gives further indication of the cause of haemolysis. PMID- 29350116 TI - [Upper abdominal pain after an elective aortic valve replacement]. AB - A 69-year-old man came to our emergency department with nausea, vomiting and upper abdominal pain under the suspicion of an ileus. Four weeks before he had had an elective aortic valve replacement. The basal thoracic slides of the abdominal CT-scan revealed a significant amount of pericardial effusion, after which the patient was referred for emergency cardiac surgery. Abdominal complaints are rarely the primary symptoms of severe heart failure. PMID- 29350117 TI - [Treating poisoning; how do you choose the best type of gastrointestinal decontamination?] AB - - A new guideline: 'Intoxication: initial approach in the hospital' will be published this year. This guideline sets out the latest insights on gastrointestinal decontamination in intoxication; the advice is summarized in a flowchart.- The advice is to generally administer activated charcoal, unless there are indications that the toxin will not bind to activated charcoal or that the amount of toxin that the patient has ingested is too great; in these cases gastric lavage can be considered.- Activated charcoal can be administered up to 2 hours after the ingestion of a toxic substance, unless there are contra indications. Multiple-dose activated charcoal in combination with a laxative can be administered in cases of overdose with toxins that use the enterohepatic circulation (such as theophylline, carbamazepine, quinine, dapsone and phenobarbital).- Gastric lavage should be limited to extremely serious intoxication, when the substance has been ingested less than 1-2 hours previously.- Whole-bowel irrigation should not be performed routinely but should be limited to ingestion of toxins with sustained release or enteric coating, or for toxins that do not bind to activated charcoal. PMID- 29350118 TI - [Online tool to prepare patient for colonoscopy; development and implementation of a patient-education app]. AB - Optimal patient education prior to colonoscopy is essential for an optimal outcome of the procedure. Patients benefit from adequate information regarding laxatives, risks and alternatives, and must provide informed consent. The endoscopist also has to have access to patient data in advance of the procedure in order to carry out an adequate risk assessment for the use of sedation. Most centres in the Netherlands usually make use of a pre-endoscopy consultation to exchange this information, but here is now pressure on this practice because the number of colonoscopies is increasing rapidly as a result of the introduction of the national screening programme for colorectal cancer. PMID- 29350119 TI - [Medication-overuse headache]. AB - - Medication-overuse headache is a highly prevalent disorder with a major impact on the quality of life.- Medication-overuse headache is defined as headache on >= 15 days per month with overuse of acute headache medication for >= 3 months. We talk about overuse in case of intake of simple analgesics on >= 15 days per month or triptans or combinations of analgesics on >= 10 days per month.- The underlying type of headache is usually migraine or tension-type headache.- One of the possible underlying mechanisms of medication-overuse headache is changed sensitivity as a consequence of central sensitisation.- The initial treatment is detoxification of the headache medication. The preferred detoxification method is outpatient, abrupt withdrawal of all acute-headache medication and caffeine containing products. Essential for successful detoxification is education about the reasons for detoxification, the expected course and the subsequent treatment. PMID- 29350120 TI - [Continued development of drugs: the path of thioguanine]. AB - Continued development of existing drugs ('drug rediscovery') may offer new therapeutic options and be cost-effective. Rediscovered drugs are commonly prescribed off-label, although licensing can be important to allow safe and controlled prescription of the drugs to patients. Licensing of a new indication for a generic drug, however, is a complicated process since there is no blueprint for this and there is little interest from the pharmaceutical industry due to an unattractive cost-recovery model. In this article, we illustrate the successful license-extension for thioguanine - initially developed in 1950 for leukaemia - as a new treatment for patients with inflammatory bowel disease. PMID- 29350121 TI - [A boy with involuntary movements]. AB - A 12-year-old Dutch boy came to the paediatrician with involuntary movements of the right half of his body. He was diagnosed with Sydenham chorea as a consequence of acute rheumatic fever. Acute rheumatic fever is a rare disease in Western countries and should be recognised in time. Antibiotic prophylaxis is indicated in patients who have had acute rheumatic fever, at least until the age of 40. PMID- 29350122 TI - [An African boy with haematuria]. AB - An 8-year-old, Senegalese boy presented with a history of painless macroscopic haematuria. The diagnosis schistosomiasis was made, based on the urine sediment that revealed eggs from the trematode parasite Schistosoma haematobium. The patient was treated with praziquantel and made a full recovery. PMID- 29350123 TI - [DoNTRuN a neurosurgical trainee network; network for the advancement of clinical research]. AB - There is a lot of research into the effectiveness of interventions, but good evidence for many interventions is missing. This is very true of simple and frequently performed treatments. These interventions are often done by trainees in the course of their specialist training, and for this reason they are in a unique position to carry out research into them. There are far fewer high quality, multicentre clinical trials in the surgical specialisations than in any other specialisation. As trainee neurosurgeons, we are of the opinion that this can be improved upon. With the establishment of the Dutch Neurosurgical Trainee Research Network (DoNTRuN), a national network, we are aiming to initiate and carry out new clinical trials. This initiative, which is currently unique in the Netherlands, will not only enable us to set up multicentre clinical trials relatively simply, but will also educate trainees in the carrying out of thorough clinical research, an area neglected in the current training program. PMID- 29350125 TI - Current management: migraine headache. AB - Migraine varies in its frequency, severity, and impact; treatment should consider these variations and the patient's needs and goals. Migraine pharmacologic treatment may be acute (abortive) or preventive (prophylactic), and patients often require both. New medication devices are available or in development, including an intracutaneous, microneedle system of zolmitriptan and sumatriptan, and breath-powered powder sumatriptan intranasal treatment. Lasmiditan, a 5-HT1F receptor agonist, is in development for acute treatment, as are small molecule calcitonin gene-related peptide (CGRP) receptor antagonists (Gepants) for acute and preventive treatment. Antibodies to CGRP and its receptor are being developed for migraine prevention. All 4 treatments are effective and have, as of yet, no safety concerns. PMID- 29350124 TI - A dimensional approach to assessing psychiatric risk in adults born very preterm. AB - BACKGROUND: Individuals who were born very preterm have higher rates of psychiatric diagnoses compared with term-born controls; however, it remains unclear whether they also display increased sub-clinical psychiatric symptomatology. Hence, our objective was to utilize a dimensional approach to assess psychiatric symptomatology in adult life following very preterm birth. METHODS: We studied 152 adults who were born very preterm (before 33 weeks' gestation; gestational range 24-32 weeks) and 96 term-born controls. Participants' clinical profile was examined using the Comprehensive Assessment of At-Risk Mental States (CAARMS), a measure of sub-clinical symptomatology that yields seven subscales including general psychopathology, positive, negative, cognitive, behavioural, motor and emotional symptoms, in addition to a total psychopathology score. Intellectual abilities were examined using the Wechsler Abbreviated Scale of Intelligence. RESULTS: Between-group differences on the CAARMS showed elevated symptomatology in very preterm participants compared with controls in positive, negative, cognitive and behavioural symptoms. Total psychopathology scores were significantly correlated with IQ in the very preterm group only. In order to examine the characteristics of participants' clinical profile, a principal component analysis was conducted. This revealed two components, one reflecting a non-specific psychopathology dimension, and the other indicating a variance in symptomatology along a positive-to-negative symptom axis. K-means (k = 4) were used to further separate the study sample into clusters. Very preterm adults were more likely to belong to a high non-specific psychopathology cluster compared with controls.Conclusion and RelevanceVery preterm individuals demonstrated elevated psychopathology compared with full-term controls. Their psychiatric risk was characterized by a non-specific clinical profile and was associated with lower IQ. PMID- 29350126 TI - A review of the neurobiology of obesity and the available pharmacotherapies. AB - Obesity is becoming an increasing problem worldwide. In addition to causing many physical health consequences, there is increasing evidence demonstrating that obesity is toxic to the brain and, as such, can be considered a disease of the central nervous system. Peripheral level regulators of appetite, such as leptin, insulin, ghrelin, and cholecystokinin, feed into the appetite center of the brain, which is controlled by the hypothalamus, to maintain homeostasis and energy balance. However, food consumption is not solely mediated by energy balance, but is also regulated by the mesolimbic reward system, where motivation, reward, and reinforcement factors influence obesity. The purpose of this review is to highlight the neurobiology of eating behavior and obesity and to describe various neurobiological treatment mechanisms to treat obesity. PMID- 29350127 TI - Converting oral to long-acting injectable antipsychotics: a guide for the perplexed. AB - There has been increasing recognition that antipsychotic nonadherence is common across all stages of schizophrenia, starting from the first episode. Moreover, numerous meta-analyses of the existing literature indicate superiority of long acting injectable (LAI) over oral antipsychotics when one adjusts for the greater illness severity and duration among patients in LAI antipsychotic trials. The increasing availability of LAI antipsychotic options has raised interest in converting patients from oral medication; however, the successful transition from oral to the comparable LAI antipsychotic requires an understanding of the current extent of antipsychotic exposure, the kinetics of the LAI preparation, and the expected plasma levels achieved by the LAI formulation. The purpose of this article is to provide, in a concise format, the essential information for converting patients to the LAI forms of haloperidol, fluphenazine, risperidone, paliperidone, olanzapine, and aripiprazole from the comparable oral medication, and how the use of plasma antipsychotic levels can be invaluable for this process. PMID- 29350128 TI - Between a rock-a-bye and a hard place: mood disorders during the peripartum period. AB - Mood disorders including major depressive disorder and bipolar disorder are common during and after pregnancy. Timely identification and appropriate management of mood episodes is essential to maximize maternal well-being and minimize adverse outcomes. Failure to do so results in maternal suffering and impaired child bonding, and has the potential for devastating outcomes including suicide and infanticide. Women are routinely screened for unipolar depression during or after pregnancy but not for bipolar disorder, in spite of the fact that childbirth is associated with a major risk for onset or exacerbation of bipolar disorder. Delays in detection as well as misdiagnosis of bipolar disorder as major depressive disorder may put women at risk of many adverse consequences, including symptom exacerbation, psychiatric hospitalization, and suicide. A thorough psychiatric assessment is necessary to establish diagnosis, to address safety issues, and to formulate a treatment plan. Treatment of mood disorders during pregnancy is complicated by the potential risks of fetal exposure to psychotropic medications, and the use of these medications during the postpartum period may result in infant medication exposure through breastmilk. These risks of psychotropic medication exposure must be weighed against the risk of untreated mood disorders. This review will discuss the pathophysiology, epidemiology, diagnosis, and treatment of mood disorders during pregnancy and the postpartum period. Screening tools that can be used in the primary care and obstetrics settings to assist in identifying women with peripartum mood disorders will also be discussed. PMID- 29350129 TI - New medications for treatment-resistant depression: a brief review of recent developments. AB - There is a great unmet need for new medications with novel mechanisms of action that can effectively treat patients who do not benefit from standard antidepressant therapies. After a period in which it seemed as if the pharmaceutical pipeline for new antidepressants was going dry, the past decade has witnessed renewed interest, beginning with discovery of the antidepressant effects of ketamine. This article briefly highlights more recent research on ketamine and other investigational antidepressants. PMID- 29350130 TI - Ecology and Evolution of Chromosomal Gene Transfer between Environmental Microorganisms and Pathogens. AB - Inspection of the genomes of bacterial pathogens indicates that their pathogenic potential relies, at least in part, on the activity of different elements that have been acquired by horizontal gene transfer from other (usually unknown) microorganisms. Similarly, in the case of resistance to antibiotics, besides mutation-driven resistance, the incorporation of novel resistance genes is a widespread evolutionary procedure for the acquisition of this phenotype. Current information in the field supports the idea that most (if not all) genes acquired by horizontal gene transfer by bacterial pathogens and contributing to their virulence potential or to antibiotic resistance originate in environmental, not human-pathogenic, microorganisms. Herein I discuss the potential functions that the genes that are dubbed virulence or antibiotic resistance genes may have in their original hosts in nonclinical, natural ecosystems. In addition, I discuss the potential bottlenecks modulating the transfer of virulence and antibiotic resistance determinants and the consequences in terms of speciation of acquiring one or another of both categories of genes. Finally, I propose that exaptation, a process by which a change of function is achieved by a change of habitat and not by changes in the element with the new functionality, is the basis of the evolution of virulence determinants and of antibiotic resistance genes. PMID- 29350131 TI - Antimicrobial Resistance in Stenotrophomonas spp. AB - Bacteria of the genus Stenotrophomonas are found throughout the environment, in close association with soil, sewage, and plants. Stenotrophomonas maltophilia, the first member of this genus, is the predominant species, observed in soil, water, plants, animals, and humans. It is also an opportunistic pathogen associated with the increased number of infections in both humans and animals in recent years. In this article, we summarize all Stenotrophomonas species (mainly S. maltophilia) isolated from animals and food products of animal origin and further distinguish all isolates based on antimicrobial susceptibility and resistance phenotypes. The various mechanisms of both intrinsic and acquired antimicrobial resistance, which were mainly identified in S. maltophilia isolates of nosocomial infections, have been classified as follows: multidrug efflux pumps; resistance to beta-lactams, aminoglycosides, quinolones, trimethoprim sulfamethoxazole, and phenicols; and alteration of lipopolysaccharide and two component regulatory systems. The dissemination, coselection, and persistence of resistance determinants among S. maltophilia isolates have also been elaborated. PMID- 29350132 TI - Toward Forensic Uses of Microbial Source Tracking. AB - The science of microbial source tracking has allowed researchers and watershed managers to go beyond general indicators of fecal pollution in water such as coliforms and enterococci, and to move toward an understanding of specific contributors to water quality issues. The premise of microbial source tracking is that characteristics of microorganisms that are strongly associated with particular host species can be used to trace fecal pollution to particular animal species (including humans) or groups, e.g., ruminants or birds. Microbial source tracking methods are practiced largely in the realm of research, and none are approved for regulatory uses on a federal level. Their application in the conventional sense of forensics, i.e., to investigate a crime, has been limited, but as some of these methods become standardized and recognized in a regulatory context, they will doubtless play a larger role in applications such as total maximum daily load assessment, investigations of sewage spills, and contamination from agricultural practices. PMID- 29350133 TI - Borrelia miyamotoi Infections in Humans and Ticks, Northeastern China. AB - We conducted an investigation of Borrelia miyamotoi infections in humans and ticks in northeastern China. Of 984 patients reporting recent tick bites, 14 (1.4%) were found to be infected with B. miyamotoi by PCR and genomic sequencing. The 14 patients had nonspecific febrile manifestations, including fever, headache, anorexia, asthenia, and arthralgia. Rash, eschar, and regional lymphadenopathy were each observed in 1 patient. Four (28.6%) patients were hospitalized because of severe disease. B. miyamotoi was detected in 3.0% (19/627) of Ixodes persulcatus, 1 (2.8%) of 36 Haemaphysalis concinna, and none of 29 Dermacentor silvarum ticks. Phylogenetic analyses based on sequences of a nearly entire 16s rRNA gene, a partial flagellin gene, and the glycerophosphodiester phosphodiesterase gene revealed that B. miyamotoi identified in patients and ticks were clustered in the group of the Siberian type. These findings indicate that B. miyamotoi is endemic in northeastern China and its public health significance deserves further investigation. PMID- 29350134 TI - Hypervirulent Klebsiella pneumoniae in Cryptogenic Liver Abscesses, Paris, France. AB - Liver abscesses containing hypervirulent Klebsiella pneumoniae have emerged during the past 2 decades, originally in Southeast Asia and then worldwide. We hypothesized that hypervirulent K. pneumoniae might also be emerging in France. In a retrospective, monocentric, cohort study, we analyzed characteristics and outcomes for 199 consecutive patients in Paris, France, with liver abscesses during 2010-2015. We focused on 31 patients with abscesses containing K. pneumoniae. This bacterium was present in most (14/27, 52%) cryptogenic liver abscesses. Cryptogenic K. pneumoniae abscesses were more frequently community acquired (p<0.00001) and monomicrobial (p = 0.008), less likely to involve cancer patients (p<0.01), and relapsed less often (p<0.01) than did noncryptogenic K. pneumoniae liver abscesses. K. pneumoniae isolates from cryptogenic abscesses belonged to either the K1 or K2 serotypes and had more virulence factors than noncryptogenic K. pneumoniae isolates. Hypervirulent K. pneumoniae are emerging as the main pathogen isolated from cryptogenic liver abscesses in the study area. PMID- 29350135 TI - Plasmid-Encoded Transferable mecB-Mediated Methicillin Resistance in Staphylococcus aureus. AB - During cefoxitin-based nasal screening, phenotypically categorized methicillin resistant Staphylococcus aureus (MRSA) was isolated and tested negative for the presence of the mecA and mecC genes as well as for the SCCmec-orfX junction region. The isolate was found to carry a mecB gene previously described for Macrococcus caseolyticus but not for staphylococcal species. The gene is flanked by beta-lactam regulatory genes similar to mecR, mecI, and blaZ and is part of an 84.6-kb multidrug-resistance plasmid that harbors genes encoding additional resistances to aminoglycosides (aacA-aphD, aphA, and aadK) as well as macrolides (ermB) and tetracyclines (tetS). This further plasmidborne beta-lactam resistance mechanism harbors the putative risk of acceleration or reacceleration of MRSA spread, resulting in broad ineffectiveness of beta-lactams as a main therapeutic application against staphylococcal infections. PMID- 29350136 TI - Ecologic Features of Plague Outbreak Areas, Democratic Republic of the Congo, 2004-2014. AB - During 2004-2014, the Democratic Republic of the Congo (DRC) declared 54% of plague cases worldwide. Using national data, we characterized the epidemiology of human plague in DRC for this period. All 4,630 suspected human plague cases and 349 deaths recorded in DRC came from Orientale Province. Pneumonic plague cases (8.8% of total) occurred during 2 major outbreaks in mining camps in the equatorial forest, and some limited outbreaks occurred in the Ituri highlands. Epidemics originated in 5 health zones clustered in Ituri, where sporadic bubonic cases were recorded throughout every year. Classification and regression tree characterized this cluster by the dominance of ecosystem 40 (mountain tropical climate). In conclusion, a small, stable, endemic focus of plague in the highlands of the Ituri tropical region persisted, acting as a source of outbreaks in DRC. PMID- 29350137 TI - Multiplex PCR-Based Next-Generation Sequencing and Global Diversity of Seoul Virus in Humans and Rats. AB - Seoul virus (SEOV) poses a worldwide public health threat. This virus, which is harbored by Rattus norvegicus and R. rattus rats, is the causative agent of hemorrhagic fever with renal syndrome (HFRS) in humans, which has been reported in Asia, Europe, the Americas, and Africa. Defining SEOV genome sequences plays a critical role in development of preventive and therapeutic strategies against the unique worldwide hantavirus. We applied multiplex PCR-based next-generation sequencing to obtain SEOV genome sequences from clinical and reservoir host specimens. Epidemiologic surveillance of R. norvegicus rats in South Korea during 2000-2016 demonstrated that the serologic prevalence of enzootic SEOV infections was not significant on the basis of sex, weight (age), and season. Viral loads of SEOV in rats showed wide dissemination in tissues and dynamic circulation among populations. Phylogenetic analyses showed the global diversity of SEOV and possible genomic configuration of genetic exchanges. PMID- 29350138 TI - Increase in Ocular Syphilis Cases at Ophthalmologic Reference Center, France, 2012-2015. AB - We describe the frequency, demographic and clinical features, and visual outcomes of ocular syphilis infections observed during 2012-2015 at a tertiary reference center in Paris, France. Twenty-one cases (29 eyes) were identified. The occurrence of ocular syphilis increased from 1 case in 2012 to 5 cases in 2013, 6 cases in 2014, and 9 cases in 2015 (2.22-25.21/1,000 individual patients/year for the period). Among case-patients, an annual 20%-33% were co-infected with HIV. Seventy-six percent of ocular syphilis infections occurred in men who have sex with men. Seventy-five percent of case-patients had a good final visual outcome (best-corrected visual acuity >0.3 logMAR score). Visual outcome was worse for HIV-positive patients than for HIV-negative patients (p = 0.0139). At follow-up, the best visual outcomes were observed in patients whose mean time from first ocular symptom to consultation was 15 days (SD +19 days). PMID- 29350139 TI - Echinococcus spp. Tapeworms in North America. AB - Alveolar and cystic echinococcosis are emerging and reemerging in Europe, Africa, and Asia. The expansion of Echinococcus spp. tapeworms in wildlife host reservoirs appears to be driving this emergence in some areas. Recent studies suggest a similar phenomenon may be occurring in North America. We describe the context of Echinococcus spp. research in North America, with a specific focus on the contiguous United States. Although studies were conducted in the United States throughout the 1900s on various sylvatic and domestic Echinococcus spp. tapeworm cycles, data are lacking for the past ~30 years. We review previous research, provide analysis of more recent focal studies, and suggest that Echinococcus spp. tapeworms, in particular E. canadensis, may be underrecognized. As a result, we suggest that additional research and surveillance be conducted for these tapeworms in wildlife host reservoirs across the United States. PMID- 29350140 TI - Co-circulation of Influenza A H5, H7, and H9 Viruses and Co-infected Poultry in Live Bird Markets, Cambodia. AB - Longitudinal surveillance of 2 live bird markets in Cambodia revealed year-round, high co-circulation of H5, H7, and H9 influenza viruses. We detected influenza A viruses in 51.3% of ducks and 39.6% of chickens, and co-infections, mainly by H5 and H9 viruses, in 0.8% of ducks and 4.5% of chickens. PMID- 29350141 TI - Spread of Meropenem-Resistant Streptococcus pneumoniae Serotype 15A-ST63 Clone in Japan, 2012-2014. AB - After the introduction of pneumococcal conjugate vaccines, the incidence of pneumococcal infections due to meropenem-resistant serotype 15A-ST63 strains increased in Japan. By using whole-genome sequencing and comparing sequences with those of clones from the United Kingdom, the United States, and Canada, we clarified the traits of the serotype 15A-ST63 clone. Our analysis revealed that the meropenem-resistant serotype 15A-ST63 strains from Japan originated from meropenem-susceptible strains from Japan. Recombination site prediction analysis showed that the meropenem-resistant strain-specific recombination regions included the pbp1a and pbp2b regions. A detailed analysis of the composition of these genes indicated that resistance seems to be caused by pbp1a recombination. The pbp1a gene in meropenem-resistant isolates was identical to that in multidrug (including meropenem)-resistant serotype 19A-ST320 pneumococci, which have spread in the United States. The global spread of pneumococci of this lineage is noteworthy because serotype 15A is not included in the currently used 13-valent pneumococcal conjugate vaccine. PMID- 29350142 TI - Lethal Respiratory Disease Associated with Human Rhinovirus C in Wild Chimpanzees, Uganda, 2013. AB - We describe a lethal respiratory outbreak among wild chimpanzees in Uganda in 2013 for which molecular and epidemiologic analyses implicate human rhinovirus C as the cause. Postmortem samples from an infant chimpanzee yielded near-complete genome sequences throughout the respiratory tract; other pathogens were absent. Epidemiologic modeling estimated the basic reproductive number (R0) for the epidemic as 1.83, consistent with the common cold in humans. Genotyping of 41 chimpanzees and examination of 24 published chimpanzee genomes from subspecies across Africa showed universal homozygosity for the cadherin-related family member 3 CDHR3-Y529 allele, which increases risk for rhinovirus C infection and asthma in human children. These results indicate that chimpanzees exhibit a species-wide genetic susceptibility to rhinovirus C and that this virus, heretofore considered a uniquely human pathogen, can cross primate species barriers and threatens wild apes. We advocate engineering interventions and prevention strategies for rhinovirus infections for both humans and wild apes. PMID- 29350143 TI - Adenovirus Type 4 Respiratory Infections among Civilian Adults, Northeastern United States, 2011-20151. AB - Human adenovirus type 4 (HAdV-4) is most commonly isolated in military settings. We conducted detailed molecular characterization on 36 HAdV-4 isolates recovered from civilian adults with acute respiratory disease (ARD) in the northeastern United States during 2011-2015. Specimens came from college students, residents of long-term care facilities or nursing homes, a cancer patient, and young adults without co-morbidities. HAdV-4 genome types 4a1 and 4a2, the variants most frequently detected among US military recruits in basic training before the restoration of vaccination protocols, were isolated in most cases. Two novel a like variants were recovered from students enrolled at a college in Tompkins County, New York, USA, and a prototype-like variant distinguishable from the vaccine strain was isolated from an 18-year-old woman visiting a physician's office in Ulster County, New York, USA, with symptoms of influenza-like illness. Our data suggest that HAdV-4 might be an underestimated causative agent of ARD among civilian adults. PMID- 29350144 TI - Emergomyces africanus in Soil, South Africa. AB - We detected Emergomyces africanus, a thermally dimorphic fungus that causes an HIV-associated systemic mycosis, by PCR in 18 (30%) of 60 soil samples from a wide range of habitats in South Africa. Direct and indirect culture techniques were unsuccessful. Experimental intraperitoneal inoculation of conidia induced murine disease. PMID- 29350145 TI - Development of a Pediatric Ebola Predictive Score, Sierra Leone1. AB - We compared children who were positive for Ebola virus disease (EVD) with those who were negative to derive a pediatric EVD predictor (PEP) score. We collected data on all children <13 years of age admitted to 11 Ebola holding units in Sierra Leone during August 2014-March 2015 and performed multivariable logistic regression. Among 1,054 children, 309 (29%) were EVD positive and 697 (66%) EVD negative, with 48 (5%) missing. Contact history, conjunctivitis, and age were the strongest positive predictors for EVD. The PEP score had an area under receiver operating characteristics curve of 0.80. A PEP score of 7/10 was 92% specific and 44% sensitive; 3/10 was 30% specific, 94% sensitive. The PEP score could correctly classify 79%-90% of children and could be used to facilitate triage into risk categories, depending on the sensitivity or specificity required. PMID- 29350146 TI - Macacine Herpesvirus 1 Antibody Prevalence and DNA Shedding among Invasive Rhesus Macaques, Silver Springs State Park, Florida, USA. AB - We compiled records on macacine herpesvirus 1 (McHV-1) seroprevalence and, during 2015-2016, collected saliva and fecal samples from the free-ranging rhesus macaques of Silver Springs State Park, a popular public park in central Florida, USA, to determine viral DNA shedding and perform sequencing. Phylogenetic analysis of the US5 and US5-US6 intragenic sequence from free-ranging and laboratory McHV-1 variants did not reveal genomic differences. In animals captured during 2000-2012, average annual seroprevalence was 25% +/- 9 (mean +/- SD). We found 4%-14% (95% CI 2%-29%) of macaques passively sampled during the fall 2015 mating season shed McHV-1 DNA orally. We did not observe viral shedding during the spring or summer or from fecal samples. We conclude that these macaques can shed McHV-1, putting humans at risk for exposure to this potentially fatal pathogen. Management plans should be put in place to limit transmission of McHV-1 from these macaques. PMID- 29350147 TI - Fly Reservoir Associated with Wohlfahrtiimonas Bacteremia in a Human. AB - Wohlfahrtiimonas species bacteria were isolated from the bloodstream of a patient with septicemia and wound myiasis. Environmental investigations identified a Wohlfahrtiimonas sp. among insects in the Americas and in a previously undescribed vector, the green bottle fly (Lucilia sericata). The isolates possibly represent a new species within the genus Wohlfahrtiimonas. PMID- 29350148 TI - Scrub Typhus Outbreak in Chonburi Province, Central Thailand, 2013. AB - Investigation of a scrub typhus outbreak in Thailand during September 2013 found that 9.1% of Thai soldiers and 11.1% of residents living in areas surrounding training sites had antibodies against the causative agent, Orientia tsutsugamushi. Sequence analysis of O. tsutsugamushi from rodents and chiggers identified 7 genogroups and 3 genotypes. PMID- 29350149 TI - Cysticercosis in Shandong Province, Eastern China. AB - We analyzed demographic and clinical data and estimated the incidence of cysticercosis in Shandong Province, China, during 1975-2014. Our analyses showed that a cysticercosis-endemic area is present in Shandong Province, especially in its western regions. Improved surveillance and control are needed to address the elevated risk for cysticercosis in this region. PMID- 29350150 TI - Role of Environmental Factors in Shaping Spatial Distribution of Salmonella enterica Serovar Typhi, Fiji. AB - Fiji recently experienced a sharp increase in reported typhoid fever cases. To investigate geographic distribution and environmental risk factors associated with Salmonella enterica serovar Typhi infection, we conducted a cross-sectional cluster survey with associated serologic testing for Vi capsular antigen-specific antibodies (a marker for exposure to Salmonella Typhi in Fiji in 2013. Hotspots with high seroprevalence of Vi-specific antibodies were identified in northeastern mainland Fiji. Risk for Vi seropositivity increased with increased annual rainfall (odds ratio [OR] 1.26/quintile increase, 95% CI 1.12-1.42), and decreased with increased distance from major rivers and creeks (OR 0.89/km increase, 95% CI 0.80-0.99) and distance to modeled flood-risk areas (OR 0.80/quintile increase, 95% CI 0.69-0.92) after being adjusted for age, typhoid fever vaccination, and home toilet type. Risk for exposure to Salmonella Typhi and its spatial distribution in Fiji are driven by environmental factors. Our findings can directly affect typhoid fever control efforts in Fiji. PMID- 29350151 TI - Risk Communication and Ebola-Specific Knowledge and Behavior during 2014-2015 Outbreak, Sierra Leone. AB - We assessed the effect of information sources on Ebola-specific knowledge and behavior during the 2014-2015 Ebola virus disease outbreak in Sierra Leone. We pooled data from 4 population-based knowledge, attitude, and practice surveys (August, October, and December 2014 and July 2015), with a total of 10,604 respondents. We created composite variables for exposures (information sources: electronic, print, new media, government, community) and outcomes (knowledge and misconceptions, protective and risk behavior) and tested associations by using logistic regression within multilevel modeling. Exposure to information sources was associated with higher knowledge and protective behaviors. However, apart from print media, exposure to information sources was also linked to misconceptions and risk behavior, but with weaker associations observed. Knowledge and protective behavior were associated with the outbreak level, most strongly after the peak, whereas risk behavior was seen at all levels of the outbreak. In future outbreaks, close attention should be paid to dissemination of information. PMID- 29350152 TI - Epidemic Varicella Zoster Virus among University Students, India. AB - We investigated a yearlong varicella zoster virus outbreak in a highly susceptible young adult population at a large university in India. Outbreaks of varicella infection among adults are not well described in the literature. Infection control measures and vaccination policy for this age group and setting are needed. PMID- 29350153 TI - Trends in Infectious Disease Mortality, South Korea, 1983-2015. AB - We used national statistics from 1983-2015 to evaluate trends in mortality caused by infectious diseases in South Korea. Age-standardized mortality from infectious disease decreased from 43.5/100,000 population in 1983 to 16.5/100,000 in 1996, and then increased to 44.6/100,000 in 2015. Tuberculosis was the most common cause of death in 1983 and respiratory tract infections in 2015. We observed a significant decline in infant deaths caused by infectious diseases, but mortality in persons age >65 years increased from 135 deaths/100,000 population in 1996 to 307/100,000 in 2015. The relative inequality indices for respiratory tract infections, sepsis, and tuberculosis tended to increase over time. Although substantial progress has been achieved in terms of infant mortality, death rates from infectious disease has not decreased overall. Elderly populations with lower education levels and subgroups susceptible to respiratory infections and sepsis should be the focus of preventive policies. PMID- 29350154 TI - Use of Pristinamycin for Macrolide-Resistant Mycoplasma genitalium Infection. AB - High levels of macrolide resistance and increasing fluoroquinolone resistance are found in Mycoplasma genitalium in many countries. We evaluated pristinamycin for macrolide-resistant M. genitalium in a sexual health center in Australia. Microbiologic cure was determined by M. genitalium-specific 16S PCR 14-90 days after treatment began. Of 114 persons treated with pristinamycin, infection was cured in 85 (75%). This percentage did not change when pristinamycin was given at daily doses of 2 g or 4 g or at 3 g combined with 200 mg doxycycline. In infections with higher pretreatment bacterial load, treatment was twice as likely to fail for each 1 log10 increase in bacterial load. Gastrointestinal side effects occurred in 7% of patients. Pristinamycin at maximum oral dose, or combined with doxycycline, cured 75% of macrolide-resistant M. genitalium infections. Pristinamycin is well-tolerated and remains an option where fluoroquinolones have failed or cannot be used. PMID- 29350155 TI - Yersinia pestis Survival and Replication in Potential Ameba Reservoir. AB - Plague ecology is characterized by sporadic epizootics, then periods of dormancy. Building evidence suggests environmentally ubiquitous amebae act as feral macrophages and hosts to many intracellular pathogens. We conducted environmental genetic surveys and laboratory co-culture infection experiments to assess whether plague bacteria were resistant to digestion by 5 environmental ameba species. First, we demonstrated that Yersinia pestis is resistant or transiently resistant to various ameba species. Second, we showed that Y. pestis survives and replicates intracellularly within Dictyostelium discoideum amebae for ?48 hours postinfection, whereas control bacteria were destroyed in <1 hour. Finally, we found that Y. pestis resides within ameba structures synonymous with those found in infected human macrophages, for which Y. pestis is a competent pathogen. Evidence supporting amebae as potential plague reservoirs stresses the importance of recognizing pathogen-harboring amebae as threats to public health, agriculture, conservation, and biodefense. PMID- 29350156 TI - Dengue-Associated Posterior Reversible Encephalopathy Syndrome, Vietnam. AB - Dengue can cause neurologic complications in addition to the more common manifestations of plasma leakage and coagulopathy. Posterior reversible encephalopathy syndrome has rarely been described in dengue, although the pathophysiology of endothelial dysfunction likely underlies both. We describe a case of dengue-associated posterior reversible encephalopathy syndrome and discuss diagnosis and management. PMID- 29350157 TI - Relative Risk for Ehrlichiosis and Lyme Disease Where Vectors for Both Are Sympatric, Southeastern United States. PMID- 29350158 TI - Human African Trypanosomiasis in Emigrant Returning to China from Gabon, 2017. AB - Human African trypanosomiasis is endemic to parts of sub-Saharan Africa and should be considered in the differential diagnosis of patients who have visited or lived in Africa. We report a 2017 case of stage 2 Trypanosoma brucei gambiense disease in an emigrant who returned to China from Gabon. PMID- 29350159 TI - Clinical and Molecular Epidemiology of Staphylococcal Toxic Shock Syndrome in the United Kingdom. AB - Staphylococcal toxic shock syndrome (TSS) was originally described in menstruating women and linked to TSS toxin 1 (TSST-1)-producing Staphylococcus aureus. Using UK national surveillance data, we ascertained clinical, molecular and superantigenic characteristics of TSS cases. Average annual TSS incidence was 0.07/100,000 population. Patients with nonmenstrual TSS were younger than those with menstrual TSS but had the same mortality rate. Children <16 years of age accounted for 39% of TSS cases, most caused by burns and skin and soft tissue infections. Nonmenstrual TSS is now more common than menstrual TSS in the UK, although both types are strongly associated with the tst+ clonal complex (CC) 30 methicillin-sensitive S. aureus lineage, which accounted for 49.4% of all TSS and produced more TSST-1 and superantigen bioactivity than did tst+ CC30 methicillin resistant S. aureus strains. Better understanding of this MSSA lineage and infections in children could focus interventions to prevent TSS in the future. PMID- 29350160 TI - Effects of Culling on Leptospira interrogans Carriage by Rats. AB - We found that lethal, urban rat control is associated with a significant increase in the odds that surviving rats carry Leptospira interrogans. Our results suggest that human interventions have the potential to affect and even increase the prevalence of zoonotic pathogens within rat populations. PMID- 29350161 TI - Invasive Serotype 35B Pneumococci Including an Expanding Serotype Switch Lineage. PMID- 29350162 TI - New Parvovirus Associated with Serum Hepatitis in Horses after Inoculation of Common Biological Product. AB - Equine serum hepatitis (i.e., Theiler's disease) is a serious and often life threatening disease of unknown etiology that affects horses. A horse in Nebraska, USA, with serum hepatitis died 65 days after treatment with equine-origin tetanus antitoxin. We identified an unknown parvovirus in serum and liver of the dead horse and in the administered antitoxin. The equine parvovirus-hepatitis (EqPV-H) shares <50% protein identity with its phylogenetic relatives of the genus Copiparvovirus. Next, we experimentally infected 2 horses using a tetanus antitoxin contaminated with EqPV-H. Viremia developed, the horses seroconverted, and acute hepatitis developed that was confirmed by clinical, biochemical, and histopathologic testing. We also determined that EqPV-H is an endemic infection because, in a cohort of 100 clinically normal adult horses, 13 were viremic and 15 were seropositive. We identified a new virus associated with equine serum hepatitis and confirmed its pathogenicity and transmissibility through contaminated biological products. PMID- 29350163 TI - Amebaborne "Attilina massiliensis" Keratitis, France. AB - We report a case of Acanthamoeba castellani keratitis in a person who wore contact lenses. The amebae hosted an ameba-resistant bacterial symbiont, provisionally named "Attilina massiliensis," a yet undescribed alpha Proteobacterium. PMID- 29350164 TI - Cerebral Syphilitic Gumma in Immunocompetent Man, Japan. AB - Although cerebral syphilitic gummas are generally considered to be rare manifestations of tertiary syphilis, many reports exist of early cerebral syphilitic gumma. Our finding of cerebral syphilitic gumma in an HIV-negative man within 5 months after syphilis infection suggests that this condition should be considered in syphilis patients who have neurologic symptoms. PMID- 29350165 TI - Novel Streptococcus suis Sequence Type 834 among Humans, Madagascar. AB - Two cases of meningitis caused by Streptococcus suis occurred in Madagascar, 1 in 2015 and 1 in 2016. We report the characterization of the novel sequence type, 834, which carried the mrp+/sly+/epf+ virulence marker and a mutation G->T at position 174, leading to a substitution mutS1 to mutS284. PMID- 29350166 TI - Cronobacter sakazakii Infection from Expressed Breast Milk, Australia. AB - Cronobacter sakazakii neonatal infections are often epidemiologically linked to the consumption of contaminated powdered infant formula. We describe a case resulting from consumption of contaminated expressed breast milk, as confirmed by whole-genome sequencing. This case highlights potential risks associated with storage and acquisition of expressed breast milk. PMID- 29350167 TI - Rickettsia africae and Novel Rickettsial Strain in Amblyomma spp. Ticks, Nicaragua, 2013. AB - We report molecular detection of Rickettsia africae in Amblyomma ovale ticks from Nicaragua and a novel rickettsial strain in an A. triste tick. Of 146 ticks from dogs, 16.4% were Rickettsia PCR positive. The presence of Rickettsia spp. in human-biting ticks in Nicaragua may pose a public health concern. PMID- 29350168 TI - Influenza D Virus in Cattle, Ireland. AB - We detected influenza D virus in 18 nasal swab samples from cattle in Ireland that were clinically diagnosed with respiratory disease. Specimens were obtained from archived samples received for routine diagnosis during 2014-2016. Sequencing showed that viruses from Ireland clustered with virus sequences obtained in Europe within the D/swine/OK/1334/2011 clade. PMID- 29350169 TI - Containment of Highly Pathogenic Avian Influenza A(H5N1) Virus, Lebanon, 20161. AB - A preparedness plan for avian influenza A(H5N1) virus infection was activated in Lebanon in 2016 after reported cases in poultry. Exposed persons were given prophylaxis and monitored daily. A total of 185 exposed persons were identified: 180 received prophylaxis, 181 were monitored, and 41 suspected cases were reported. All collected specimens were negative for virus by PCR. PMID- 29350170 TI - Atypical lower motor neuron disease with enlargement of Nissl substance: Report of an autopsy case. AB - The patient was an 81-year-old woman diagnosed with atypical motor neuron disease who died after a long clinical course (7.5 years without mechanical assistance of ventilation) characterized by lower motor neuron signs and symptoms. Upper motor neuron signs and cognitive impairment were not apparent. Autopsy demonstrated severe neuronal loss in the anterior horn of the spinal cord, and some of the remaining neurons showed enlargement of Nissl substance and apparent thickening of the nuclear envelopes. No Bunina bodies, skein-like inclusions, or structures immunoreactive for phosphorylated transactivation response DNA-binding protein 43 were found. Immunoreactivity for superoxide dismutase-1 was focally seen in the enlarged Nissl substance. Ultrastructural examination demonstrated an increase of rough-surfaced endoplasmic reticulum (rough ER) and free ribosomes, disaggregation of polyribosomes, and dispersion of free ribosomes. Cisterns of rough ER were slightly dilated, and some of them were closely attached to the nuclear envelopes. Enlargement of Nissl substance may be related to "ER stress", and the abnormal findings of rough ER and free ribosomes may represent a degenerative process. However, another possibility, that they represent a compensatory hyperplastic change, cannot be excluded. The close attachment of cisterns of rough ER to the nuclear envelopes may be a mechanism to support or compensate for the abnormally-fragile nuclear envelopes.?. PMID- 29350171 TI - The DNA copy number landscape of a collision tumor. AB - Intracranial collision tumors are composed of two histologically distinct but merging components, and are rare. Their genetic profile has rarely been described. Comparative genome hybridization of a combined meningioma and oligodendroglioma demonstrated deletion of chromosome 22q and of 19q in both tumors. Somatic deletion of chromosome 22q and 19q is associated with development of an intracranial collision tumor.?. PMID- 29350172 TI - Comparison of dialysate and plasma NTproBNP in prediction of clinical outcomes of diabetic and nondiabetic peritoneal dialysis patients?. AB - BACKGROUND: Plasma level of N-terminal pro-brain natriuretic peptide (P-NTproBNP) is a useful marker in prediction of mortality in peritoneal dialysis (PD) patients. However, the predictive value of spent dialysate counterpart (D NTproBNP) of plasma NTproBNP on mortality and dropout is not known. MATERIALS AND METHODS: Simultaneous P-NTproBNP and D-NTproBNP assays were performed after an overnight dwell in 44 scheduled ambulatory PD patients. Patients were followed for ~ 47 months. Deceased patients or patients who were transferred to hemodialysis were regarded as dropouts. RESULTS: 14 patients (31.8%) dropped out at ~ 4 years (9 deaths and 5 transfers to hemodialysis). Diabetics, males, and patients with higher membrane permeability had higher dropout rates. Patients with P- and D-NTproBNP higher than median values had higher mortality and dropout rates (Kaplan-Meier test, log-rank Test p < 0.05). Odds ratios of D-NTproBNP for death and dropouts were (3.807 (0.907 - 15.971), p = 0.068) and (2.87 (1.009 - 8.138) p = 0.048), respectively; odds ratios of P-NTproBNP for death and dropouts were (4.652 (0.914 - 23.693), p = 0.064) and (2.67 (0.924 - 7.716), p = 0.07), respectively; in ROC analysis for death, AUC for P- and D-NTproBNP were 0.762 (0.578 - 0.946, p = 0.016) and 0.765 (0.590 - 0.940, p = 0.015), respectively. Exclusion of diabetic patients from the analyses resulted in significant changes in the predictive value P- and D-NTproBNP. Although death and dropout rates were still higher in nondiabetic patients with higher NTproBNP levels, the differences between groups lost statistical significance. CONCLUSIONS: Both P-NTproBNP and D NTproBNP are significant predictors of outcomes of interest. Predictive value of NTproBNP might be different in diabetics and non-diabetic CAPD patients.?. PMID- 29350173 TI - Membranoproliferative glomerulonephritis and interstitial nephritis in the setting of Epstein-Barr virus-related hemophagocytic syndrome?. AB - BACKGROUND: Hemophagocytic syndrome (HPS) is a rare, aggressive disorder characterized by dysregulation of lymphocyte and macrophage activity, which culminates in tissue infiltration with hemophagocytosis and ultimately organ failure. Renal involvement frequently ensues and usually results in acute tubular necrosis with associated interstitial inflammation. Less frequently, glomerulopathy can also be found. CASE: We report a case of a 24-year-old Caucasian woman with previous asymptomatic hematuria, mild proteinuria, and normal renal function who presented to us with fever. Laboratory findings revealed pancytopenia, elevated lactate dehydrogenase, and ferritin as well as liver and kidney failure. Renal biopsy showed a tubulointerstitial nephritis superimposed in a membranoproliferative glomerulonephritis with crescents. Extensive etiologic investigation was negative except for Epstein-Barr virus (EBV) viral load. EBV-DNA was then identified by in situ hybridization in the renal biopsy. HPS could be diagnosed with the presence of six criteria: fever, splenomegaly, bicytopenia, high ferritin, hypertriglyceridemia, and high levels of soluble CD25. Steroid therapy was initiated with resolution of HPS as well as complete recovery of renal and liver function. CONCLUSION: In this case, we believe that EBV triggered both HPS and tubulointerstitial nephritis. Steroid therapy successfully treated the inflammatory syndrome, allowing renal function recovery without compromising EBV infection resolution.?. PMID- 29350174 TI - Automated peritoneal dialysis could rapidly improve left heart failure by increasing peritoneal dialysis ultrafiltration: a single-center observational clinical study?. AB - Ultrafiltration failure (UFF) is a major cause of water retention, left heart failure (LHF), and peritoneal dialysis (PD) failure. Automated peritoneal dialysis (APD) might have better ultrafiltration (UF) than continuous ambulatory peritoneal dialysis (CAPD). Here, we have studied whether short-term APD could increase UF and improve LHF. 47 patients were included in this study from December 1, 2015, to January 1, 2017. All patients had been treated with CAPD before they came to our center and were treated with APD in the hospital. 24-hour peritoneal UF volume, 24-hour urine volume, body weight, blood pressure, LHF class, serum creatinine, blood urea nitrogen, albumin, potassium, hemoglobin, and glucose were collected and compared before and after receiving short-time APD. A total of 47 patients (31 men, mean age 46.8 +/- 16.2 years, mean duration 26 months (2 - 195 months)) were enrolled in this study. Of the 47 patients, peritoneal dialysis UF was significantly increased when receiving short-term APD compared to CAPD (1,261.9 +/- 329.6 mL vs. 706.2 +/- 222.3 mL, p < 0.001), and body weights had significantly decreased 3 days after treatment with APD (57.73 +/- 10.5 vs. 59.81 +/- 10.8, p < 0.001). LHF class was significantly decreased 3 days after receiving APD (1.7 +/- 0.8 vs. 2.4 +/- 1.0, p < 0.001). Blood pressure was well controlled 3 days after treatment with APD (146.6 +/- 14.4 vs. 162.5 +/- 23.8 of SBP, p = 0.007, and 85.6 +/- 11.1 vs. 95.6 +/- 14.7 of DBP, p = 0.001). In conclusion, short-term APD could significantly increase ultrafiltration, rapidly alleviate edema and improve LHF, and might be an effective method to treat UFF and LHF in PD patients.?. PMID- 29350175 TI - Update on the nephrotoxicity of novel anticancer agents?. AB - Anticancer drug-induced kidney disease is a problem commonly encountered by nephrologists. The number of medications employed by oncologists causing acute and chronic kidney injury as well as electrolyte and acid-base disturbances has increased significantly over the past several decades. While conventional chemotherapeutic drugs induce a number of kidney lesions, emergence of very effective and well-tolerated targeted therapies and novel immunotherapies has increased the occurrence of drug-induced acute and chronic kidney injury in cancer patients. This article will review the various kidney lesions observed with these new classes of anticancer drugs.?. PMID- 29350176 TI - Pharmacokinetic characterization of three novel 4-mg nicotine lozenges?. AB - OBJECTIVE: Nicotine replacement therapy (NRT) increases the probability of smoking cessation. This study was conducted to determine if three prototype 4-mg nicotine lozenges produced locally in India were bioequivalent to a globally marketed reference product, Nicorette(r) 4-mg nicotine lozenge. MATERIALS AND METHODS: Healthy adult smokers (N = 39) were treated with three prototype 4-mg nicotine lozenges in comparison with a reference 4-mg lozenge in this single center, randomized, open-label, single-dose, 4-way crossover study. Pharmacokinetic sampling was obtained to test for bioequivalence using maximal plasma concentration (Cmax) and extent of absorption (AUC0-t). Secondarily, AUC;0 infinity, time to maximal plasma concentration (tmax), half-life (T1/2), elimination rate constant (Kel), and safety of the prototype lozenges versus the reference lozenge were compared. RESULTS: Each prototype 4-mg nicotine lozenge was found to be bioequivalent to the reference 4-mg nicotine lozenge based on the ratio of geometric means and 90% confidence intervals for Cmax, AUC0-t, and AUC;0 infinity. Although tmax; was significantly longer for prototype III, all four lozenges achieved maximum plasma nicotine concentrations at a median of 1.5 hours. The safety profiles of the three prototype 4-mg lozenges did not differ from that of the 4-mg reference product. CONCLUSION: Each prototype 4-mg nicotine lozenge was bioequivalent to the reference 4-mg nicotine lozenge and was well tolerated. Furthermore, as these bioequivalent prototypes differed in in-vitro dissolution profiles, these data suggest that performance from the in -vitro method deployed is not a firm predictor of pharmacokinetic behavior.?. PMID- 29350177 TI - Antidepressant medication in a German cohort of patients with Alzheimer's disease?. AB - OBJECTIVE: The use of antidepressant drugs in dementia patients is associated with the risk of adverse events, and the evidence for relevant effects is scarce. We aimed to determine the associations between the prescription of antidepressants and patients' sociodemographic (e.g., age, gender, living situation) and clinical characteristics (e.g., disease severity, neuropsychiatric symptoms). MATERIALS AND METHODS: We included 395 institutionalized and community dwelling patients with Alzheimer's disease (AD) across all severity stages of dementia in a cross-sectional study design. The patients' clinical characteristics comprised of cognitive status, daily activities, depressive symptoms, further neuropsychiatric symptoms, and health-related quality of life (HrQoL). We conducted multiple logistic regression analyses for the association between the use of antidepressant drugs and the covariates. RESULTS: Approximately 31% of the participants were treated with antidepressant drugs, with a higher chance of being medicated for institutionalized patients (chi2 test: p = 0.010). In the bivariate analyses, the use of antidepressants was significantly associated with higher levels of care, lower cognitive and daily life capacity, higher extent of neuropsychiatric symptoms, and a lower proxy reported HrQoL. Finally, multiple logistic regression models showed a significantly higher use of antidepressants in patients treated by psychiatrists and neurologists (OR 2.852, 95% CI: 1.223 - 6.652). CONCLUSION: The use of antidepressant drugs in the study population was high, and the suitability of the treatment with antidepressants remains unclear. Participants with diminished cognitive and functional capacity, higher extent of neuropsychiatric symptoms, and those treated by neuropsychiatric specialists were more likely to be treated with antidepressants. The pharmaceutical treatment of patients with these clinical characteristics should be particularly considered in the daily care for dementia patients. Further longitudinal studies should evaluate the appropriateness of indications for antidepressants and the causative direction of correlations with the patients' clinical characteristics.?. PMID- 29350178 TI - Use of rifabutin to treat tuberculosis in a cardiac transplant recipient: A case report?. AB - OBJECTIVE: Tuberculosis is an important concern following organ transplantation. Unfortunately, several antituberculosis drugs interact with immunosuppressants. This report describes our experience with rifabutin (RBT) in the treatment of acute tuberculosis in a cardiac transplant recipient. CASE: A 61-year-old cardiac transplant recipient developed tuberculosis meningitis during treatment of miliary tuberculosis. RBT was given for 27 days concomitantly with cyclosporine (CsA). CsA concentrations at 0 hour (C0) decreased within 3 days of starting RBT. The serum concentration-curve from 0 to 12 hours (AUC0 12h)/dose 7 days after starting RBT therapy decreased by 28%, compared to the values before RBT therapy. The apparent clearance at both 7 and 21 days after starting RBT therapy was 1.4 times higher than before RBT therapy. CONCLUSION: RBT has fewer drug-drug interactions than rifampin and should be preferentially used for the treatment of tuberculosis in transplant patients treated with CsA. Close monitoring of CsA blood concentration during RBT therapy minimized the risk of under- or over-immunosuppression in a cardiac transplant patient.?. PMID- 29350179 TI - Risks in the clinical applications of scopolamine butylbromide injections. AB - OBJECTIVE: To investigate and analyze the clinical application of scopolamine butylbromide injection and promote the rational use of the drug. MATERIALS AND METHODS: We classified and analyzed 3,695 cases of scopolamine butylbromide injection (effective cases only) collected over the period of January 2016 to July 2017, including details on gender, age, course of treatment, high-risk patients with other medications, adverse drug reactions, and drug combinations. RESULTS: Use in high-risk patients is common, occurrence of adverse drug reaction rate in patients with high risk is 8.32 times the incidence of adverse reactions of the drug in general, in high-risk patients with adverse drug reaction the rate is 7.63 times that for lower-risk patients. Combined use of drugs is common, and there are 1.98% of cases with potential drug interactions. CONCLUSION: The findings have importance for other Asian ethnic groups and for Chinese living outside China - Chinese are considered a "moderate-risk" ethnic group in using scopolamine butylbromide injection. We should adhere to the requirements of drug instructions, pay attention to high-risk patients, drug and drug interactions, drug and food interactions, reduce the risk of adverse drug reactions, and ensure drug safety. PMID- 29350180 TI - Genetic characterization of three mitochondrial gene sequences of goat/sheep derived coenurus cerebralis and cysticercus tenuicollis isolates in Inner Mongolia, China. AB - Taenia multiceps and Taenia hydatigena are widely distributed tapeworms of canids. Due to a lack of genetic information on these two parasites in China, in this study we analyzed six coenurus cerebralis and two cysticercus tenuicollis cysts from goats or sheep in Inner Mongolia, northern China by amplifying three mitochondrial genes (cox1, nad4, and cytb). Two haplotypes were obtained at each locus for either of the two Taenia cestode species, with ten nucleotide sequences being novel. The degrees of genetic variations were 1.18%, 0.61% and 0.52% for coenurus cerebralis, and 0.24%, 0.46% and 0.35% for cysticercus tenuicollis at the cox1, nad4 and cytb loci, respectively. This is the first molecular description of animal-derived metacestodes of T. multiceps and T. hydatigena in Inner Mongolia, China. Novel nucleotide sequences might reflect endemic genetic characterization of the two cestodes. The present data are useful to explore the biological and epidemiological significance of intra-specific variations within both Taenia cestodes. PMID- 29350181 TI - A single, continuous metric to define tiered serum neutralization potency against HIV. AB - HIV-1 Envelope (Env) variants are grouped into tiers by their neutralization sensitivity phenotype. This helped to recognize that tier 1 neutralization responses can be elicited readily, but do not protect against new infections. Tier 3 viruses are the least sensitive to neutralization. Because most circulating viruses are tier 2, vaccines that elicit neutralization responses against them are needed. While tier classification is widely used for viruses, a way to rate serum or antibody neutralization responses in comparable terms is needed. Logistic regression of neutralization outcomes summarizes serum or antibody potency on a continuous, tier-like scale. It also tests significance of the neutralization score, to indicate cases where serum response does not depend on virus tiers. The method can standardize results from different virus panels, and could lead to high-throughput assays, which evaluate a single serum dilution, rather than a dilution series, for more efficient use of limited resources to screen samples from vaccinees. PMID- 29350182 TI - The role of EEG in the diagnosis and classification of the epilepsy syndromes: a tool for clinical practice by the ILAE Neurophysiology Task Force (Part 2). AB - The concept of epilepsy syndromes, introduced in 1989, was defined as "clusters of signs and symptoms customarily occurring together". Definition of epilepsy syndromes based on electro-clinical features facilitated clinical practice and, whenever possible, clinical research in homogeneous groups of patients with epilepsies. Progress in the fields of neuroimaging and genetics made it rapidly clear that, although crucial, the electro-clinical description of epilepsy syndromes was not sufficient to allow much needed development of targeted therapies and a better understanding of the underlying pathophysiological mechanisms of seizures. The 2017 ILAE position paper on Classification of the Epilepsies recognized that "as a critical tool for the practicing clinician, epilepsy classification must be relevant and dynamic to changes in thinking". The concept of "epilepsy syndromes" evolved, incorporating issues related to aetiologies and comorbidities. A comprehensive update (and revision where necessary) of the EEG diagnostic criteria in the light of the 2017 revised terminology and concepts was deemed necessary. Part 2 covers the neonatal and paediatric syndromes in accordance with the age of onset. [Published with educational EEG plates at www.epilepticdisorders.com]. PMID- 29350183 TI - Integrated biocircuits: engineering functional multicellular circuits and devices. AB - OBJECTIVE: Implantable neurotechnologies have revolutionized neuromodulatory medicine for treating the dysfunction of diseased neural circuitry. However, challenges with biocompatibility and lack of full control over neural network communication and function limits the potential to create more stable and robust neuromodulation devices. Thus, we propose a platform technology of implantable and programmable cellular systems, namely Integrated Biocircuits, which use only cells as the functional components of the device. APPROACH: We envision the foundational principles for this concept begins with novel in vitro platforms used for the study and reconstruction of cellular circuitry. Additionally, recent advancements in organoid and 3D culture systems account for microenvironment factors of cytoarchitecture to construct multicellular circuits as they are normally formed in the brain. We explore the current state of the art of these platforms to provide knowledge of their advancements in circuit fabrication and identify the current biological principles that could be applied in designing integrated biocircuit devices. MAIN RESULTS: We have highlighted the exemplary methodologies and techniques of in vitro circuit fabrication and propose the integration of selected controllable parameters, which would be required in creating suitable biodevices. SIGNIFICANCE: We provide our perspective and propose new insights into the future of neuromodulaion devices within the scope of living cellular systems that can be applied in designing more reliable and biocompatible stimulation-based neuroprosthetics. PMID- 29350184 TI - Chirality in molecular collision dynamics. AB - Chirality is a phenomenon that permeates the natural world, with implications for atomic and molecular physics, for fundamental forces and for the mechanisms at the origin of the early evolution of life and biomolecular homochirality. The manifestations of chirality in chemistry and biochemistry are numerous, the striking ones being chiral recognition and asymmetric synthesis with important applications in molecular sciences and in industrial and pharmaceutical chemistry. Chiral discrimination phenomena, due to the existence of two enantiomeric forms, very well known in the case of interaction with light, but still nearly disregarded in molecular collision studies. Here we review some ideas and recent advances about the role of chirality in molecular collisions, designing and illustrating molecular beam experiments for the demonstration of chiral effects and suggesting a scenario for a stereo-directional origin of chiral selection. PMID- 29350185 TI - Fluorescence detection of glutathione and oxidized glutathione in blood with a NIR-excitable cyanine probe. AB - Cyanine has been widely utilized as a near infrared (NIR) fluorophore for detection of glutathione (GSH). However, the excitation of most of the reported cyanine-based probes was less than 800 nm, which inevitably induce biological background absorption and lower the sensitivity, limiting their use for detection of GSH in blood samples. To address this issue, here, a heptamethine cyanine probe (DNIR), with a NIR excitation wavelength at 804 nm and a NIR emission wavelength at 832 nm, is employed for the detection of GSH and its oxidized form (GSSG) in blood. The probe displays excellent selectivity for GSH over GSSG and other amino acids, and rapid response to GSH, in particular a good property for indirect detection of GSSG in the presence of enzyme glutathione reductase and the reducing agent nicotinamideadenine dinucleotide phosphate, without further separation prior to fluorescent measurement. To the best of our knowledge, this is the first attempt to explore NIR fluorescent approach for the simultaneous assay of GSH and GSSG in blood. As such, we expect that our fluorescence sensors with both NIR excitation and NIR emission make this strategy suitable for the application in complex physiological systems. PMID- 29350186 TI - MRI tracing non-invasive TiO2-based nanoparticles activated by ultrasound for multi-mechanism therapy of prostatic cancer. AB - To reduce the side effects of chemotherapy and achieve effective and safe therapy for prostate cancer, herein a simple but multi-functional TiO2:Gd@DOX/FA system activated by ultrasound was developed for the MRI-guided multi-mechanism therapy of prostate cancer. TiO2 nanoparticles served as a sonosensitizer as well as a nanocarrier with the pH-responsive release of DOX. The doping of Gd was not only able to endow the TiO2 with magnetic resonance imaging (MRI) ability, but also further improve the sonodynamic ability of the TiO2. The characterization of the as-prepared TiO2:Gd@DOX/FA showed sensitive pH-responsive drug release, high reactive oxygen species (ROS) production, T 1-MRI contrast performance and excellent biocompatibility. The cytotoxicity assay in vitro showed cell death up to 91.68% after 48 h incubation induced by the TiO2:Gd@DOX + ultrasound group. Meanwhile, in the in vivo synergistic therapy studies, the tumor sizes of all the nanomedicine groups were smaller than for the free DOX (V:V 0 = 4.2). More importantly, the body showed nearly no weight loss. This safety was also confirmed by the H&E staining, biodistribution experiment and serum biochemistry results. Altogether, TiO2:Gd@DOX/FA significantly reduced the side effects of DOX, augmented the levels of ROS and achieved effective and safe therapy, indicating its potential for the multi-mechanism therapy of prostate cancer. PMID- 29350187 TI - Multifractal dynamics of resting-state functional connectivity in the prefrontal cortex. AB - : Brain function is organized as a network of functional connections between different neuronal populations with connection strengths dynamically changing in time and space. Studies investigating functional connectivity (FC) usually follow a static approach when describing FC by considering the connectivity strengths constant, however a dynamic approach seems more reasonable, as this way the spatio-temporal dynamics of the underlying system can also be captured. OBJECTIVE: The scale-free, i.e. fractal nature of neural dynamics is an inherent property of the nervous system. The aim of this study was to determine if dynamic functional connectivity (DFC) in the prefrontal cortex shows not only scale-free but indeed multifractal dynamics. APPROACH: Functional near-infrared spectroscopy (fNIRS) was used to monitor resting-state brain activity in young healthy volunteers. Sliding window correlation (SWC) analysis and graph theory approach were utilized to capture the functional connection networks for every time point, whose topology was subsequently characterized with three network metrics-Density, Clustering Coefficient and Efficiency-each capturing a different aspect of the given network. The temporal structuring of the obtained network metric time series was then described by multifractal time series analysis. MAIN RESULTS: We found the DFC in the prefrontal cortex fluctuating according to scale-free, specifically multifractal dynamics. Moreover, different topological properties of the network showed different multifractal characteristics. All the results were reproducible in all window sizes used in the SWC analysis, however we found that the actual values of the given multifractal properties depended significantly on the window size. SIGNIFICANCE: Our results may well be another indication of a self-organized critical state underlying resting-state brain activity. The proposed analysis of functional brain dynamics can also open new perspectives for future clinical applications. PMID- 29350188 TI - Accurate identification of layer number for few-layer WS2 and WSe2 via spectroscopic study. AB - Transition metal dichalcogenides (TMDs) with a typical layered structure are highly sensitive to their layer number in optical and electronic properties. Seeking a simple and effective method for layer number identification is very important to low-dimensional TMD samples. Herein, a rapid and accurate layer number identification of few-layer WS2 and WSe2 is proposed via locking their photoluminescence (PL) peak-positions. As the layer number of WS2/WSe2 increases, it is found that indirect transition emission is more thickness-sensitive than direct transition emission, and the PL peak-position differences between the indirect and direct transitions can be regarded as fingerprints to identify their layer number. Theoretical calculation confirms that the notable thickness sensitivity of indirect transition derives from the variations of electron density of states of W atom d-orbitals and chalcogen atom p-orbitals. Besides, the PL peak-position differences between the indirect and direct transitions are almost independent of different insulating substrates. This work not only proposes a new method for layer number identification via PL studies, but also provides a valuable insight into the thickness-dependent optical and electronic properties of W-based TMDs. PMID- 29350189 TI - Detection of thoracic vascular structures by electrical impedance tomography: a systematic assessment of prominence peak analysis of impedance changes. AB - OBJECTIVE: Electrical impedance tomography (EIT) is a non-invasive and radiation free bedside monitoring technology, primarily used to monitor lung function. First experimental data shows that the descending aorta can be detected at different thoracic heights and might allow the assessment of central hemodynamics, i.e. stroke volume and pulse transit time. APPROACH: First, the feasibility of localizing small non-conductive objects within a saline phantom model was evaluated. Second, this result was utilized for the detection of the aorta by EIT in ten anesthetized pigs with comparison to thoracic computer tomography (CT). Two EIT belts were placed at different thoracic positions and a bolus of hypertonic saline (10 ml, 20%) was administered into the ascending aorta while EIT data were recorded. EIT images were reconstructed using the GREIT model, based on the individual's thoracic contours. The resulting EIT images were analyzed pixel by pixel to identify the aortic pixel, in which the bolus caused the highest transient impedance peak in time. MAIN RESULTS: In the phantom, small objects could be located at each position with a maximal deviation of 0.71 cm. In vivo, no significant differences between the aorta position measured by EIT and the anatomical aorta location were obtained for both measurement planes if the search was restricted to the dorsal thoracic region of interest (ROIs). SIGNIFICANCE: It is possible to detect the descending aorta at different thoracic levels by EIT using an intra-aortic bolus of hypertonic saline. No significant differences in the position of the descending aorta on EIT images compared to CT images were obtained for both EIT belts. PMID- 29350190 TI - Development and validation of a high-resolution mapping platform to aid in the public awareness of radiological hazards. AB - The distribution, quantification and exposure-related effects of radiation in the environment, arising from both natural and anthropogenic sources, is of great (and growing) concern for global populations. Recent events at the Fukushima Daiichi Nuclear Plant (FDNPP) have further highlighted the importance of developing radiation mapping technologies that not only contribute to the continued assessment of contamination, but can serve as an educational tool for members of the public regarding both its behaviour and extent. With an even greater number of people possessing smart-phone technology, a lightweight and portable 'connected system' has been developed to demonstrate to users the calibrated radioactive dose rate in an area, viewable in real-time through a dedicated phone application. As well as allowing for system users to be alerted where variations in dose rate are experienced, the combined results from multiple systems are viewable through a custom-built desktop application-permitting the output obtained via any number of units to be similarly displayed in real-time. A successful initial trialling of the system is described at a former tin mine in Cornwall (south-west England)-known to exhibit low, but identifiable radiation anomalies in discrete areas. Additional applications outside of its educational usage are also discussed. PMID- 29350191 TI - A prospective gating method to acquire a diverse set of free-breathing CT images for model-based 4DCT. AB - Breathing motion modeling requires observation of tissues at sufficiently distinct respiratory states for proper 4D characterization. This work proposes a method to improve sampling of the breathing cycle with limited imaging dose. We designed and tested a prospective free-breathing acquisition protocol with a simulation using datasets from five patients imaged with a model-based 4DCT technique. Each dataset contained 25 free-breathing fast helical CT scans with simultaneous breathing surrogate measurements. Tissue displacements were measured using deformable image registration. A correspondence model related tissue displacement to the surrogate. Model residual was computed by comparing predicted displacements to image registration results. To determine a stopping criteria for the prospective protocol, i.e. when the breathing cycle had been sufficiently sampled, subsets of N scans where 5 ? N ? 9 were used to fit reduced models for each patient. A previously published metric was employed to describe the phase coverage, or 'spread', of the respiratory trajectories of each subset. Minimum phase coverage necessary to achieve mean model residual within 0.5 mm of the full 25-scan model was determined and used as the stopping criteria. Using the patient breathing traces, a prospective acquisition protocol was simulated. In all patients, phase coverage greater than the threshold necessary for model accuracy within 0.5 mm of the 25 scan model was achieved in six or fewer scans. The prospectively selected respiratory trajectories ranked in the (97.5 +/- 4.2)th percentile among subsets of the originally sampled scans on average. Simulation results suggest that the proposed prospective method provides an effective means to sample the breathing cycle with limited free-breathing scans. One application of the method is to reduce the imaging dose of a previously published model-based 4DCT protocol to 25% of its original value while achieving mean model residual within 0.5 mm. PMID- 29350192 TI - Size-dependent Young's modulus in ZnO nanowires with strong surface atomic bonds. AB - The mechanical properties of size-dependent nanowires are important in nano electro-mechanical systems (NEMSs), and have attracted much research interest. Characterization of the size effect of nanowires in atmosphere directly to broaden their practical application instead of just in high vacuum situations, as reported previously, is desperately needed. In this study, we systematically studied the Young's modulus of vertical ZnO nanowires in atmosphere. The diameters ranged from 48 nm to 239 nm with a resonance method using non-contact atomic force microscopy. The values of Young's modulus in atmosphere present extremely strong increasing tendency with decreasing diameter of nanowire due to stronger surface atomic bonds compared with that in vacuum. A core-shell model for nanowires is proposed to explore the Young's modulus enhancement in atmosphere, which is correlated with atoms of oxygen occurring near the nanowire surface. The modified model is more accurate for analyzing the mechanical behavior of nanowires in atmosphere compared with the model in vacuum. Furthermore, it is possible to use this characterization method to measure the size-related elastic properties of similar wire-sharp nanomaterials in atmosphere and estimate the corresponding mechanical behavior. The study of the size dependent Young's modulus in ZnO nanowires in atmosphere will improve the understanding of the mechanical properties of nanomaterials as well as providing guidance for applications in NEMSs, nanogenerators, biosensors and other related areas. PMID- 29350193 TI - Layer structured bismuth selenides Bi2Se3 and Bi3Se4 for high energy and flexible all-solid-state micro-supercapacitors. AB - In this work, bismuth selenides (Bi2Se3 and Bi3Se4), both of which have a layered rhombohedral crystal structure, have been found to be useful as electrode materials for supercapacitor applications. In a liquid electrolyte system (6M KOH), Bi2Se3 nanoplates exhibit much better performance as an electrode material than Bi3Se4 nanoparticles do, delivering a higher specific capacitance (272.9 F g 1) than that of Bi3Se4 (193.6 F g-1) at 5 mV s-1. This result may be attributed to the fact that Bi2Se3 nanoplates possess more active electrochemical surfaces for the reversible surface redox reactions owing to their planar quintuple stacked layers (septuple layers for Bi3Se4). To meet the demands of electronic skin, we used a novel flexible annular interdigital structure electrode to support the all-solid-state micro-supercapacitors (AMSCs). The Bi2Se3 AMSC device delivers a much better supercapacitor performance, exhibits a large stack capacitance of 89.5 F cm-3 at 20 mV s-1 (Bi3Se4: 79.1 F cm-3), a high energy density of 17.9 mWh cm-3 and a high power density of 18.9 W cm-3. The bismuth selenides also exhibit good cycle stability, with 95.5% retention after 1000 c for Bi2Se3 (Bi3Se4:90.3%). Clearly, Bi2Se3 nanoplates can be promising electrode materials for flexible annular interdigital AMSCs. PMID- 29350194 TI - Detection rate of fetal distress using contraction-dependent fetal heart rate variability analysis. AB - OBJECTIVE: Monitoring of the fetal condition during labor is currently performed by cardiotocograpy (CTG). Despite the use of CTG in clinical practice, CTG interpretation suffers from a high inter- and intra-observer variability and a low specificity. In addition to CTG, analysis of fetal heart rate variability (HRV) has been shown to provide information on fetal distress. However, fetal HRV can be strongly influenced by uterine contractions, particularly during the second stage of labor. Therefore, the aim of this study is to examine if distinguishing contractions from rest periods can improve the detection rate of HRV features for fetal distress during the second stage of labor. APPROACH: We used a dataset of 100 recordings, containing 20 cases of fetuses with adverse outcome. The most informative HRV features were selected by a genetic algorithm and classification performance was evaluated using support vector machines. MAIN RESULTS: Classification performance of fetal heart rate segments closest to birth improved from a geometric mean of 70% to 79%. If the classifier was used to indicate fetal distress over time, the geometric mean at 15 minutes before birth improved from 60% to 72%. SIGNIFICANCE: Our results show that combining contraction-dependent HRV features with HRV features calculated over the entire fetal heart rate signal improves the detection rate of fetal distress. PMID- 29350195 TI - Design and fabrication of a multifocal bionic compound eye for imaging. AB - Miniaturized bionic compound eyes featured with multi-aperture imaging have potential applications in the areas of micro opto-electro-mechanical-system. In this manuscript, we present a novel structure of the bionic compound eye with multiple focal lengths consists of an array of individual lenses with 1000 um diameter. The simulation results of the designed multifocal bionic compound eye (MBCE) with two focal lengths of 190 mm and 44.4 mm demonstrate excellent two order focusing abilities. Moving mask exposure technology was used to fabricate the designed MBCE with the corresponding imaging experiments conducted to validate the two-order imaging ability of the fabricated MBCE. Experimental results revealed that the developed structure has potential applications in diverse optical imaging systems such as three-dimensional imaging and real-time detection of unconfined or fluctuating targets. PMID- 29350196 TI - Estimation and correction of produced light from prompt gamma photons on luminescence imaging of water for proton therapy dosimetry. AB - Although the luminescence images of water during proton-beam irradiation using a cooled charge-coupled device camera showed almost the same ranges of proton beams as those measured by an ionization chamber, the depth profiles showed lower Bragg peak intensities than those measured by an ionization chamber. In addition, a broad optical baseline signal was observed in depths that exceed the depth of the Bragg peak. We hypothesize that this broad baseline signal originates from the interaction of proton-induced prompt gamma photons with water. These prompt gamma photons interact with water to form high-energy Compton electrons, which may cause luminescence or Cherenkov emission from depths exceeding the location of the Bragg peak. To clarify this idea, we measured the luminescence images of water during the irradiations of protons in water with minimized parallax errors, and also simulated the produced light by the interactions of prompt gamma photons with water. We corrected the measured depth profiles of the luminescence images by subtracting the simulated distributions of the produced light by the interactions of prompt gamma photons in water. Corrections were also conducted using the estimated depth profiles of the light of the prompt gamma photons, as obtained from the off-beam areas of the luminescence images of water. With these corrections, we successfully obtained depth profiles that have almost identical distributions as the simulated dose distributions for protons. The percentage relative height of the Bragg peak with corrections to that of the simulation data increased to 94% from 80% without correction. Also, the percentage relative offset heights of the deeper part of the Bragg peak with corrections decreased to 0.2%-0.4% from 4% without correction. These results indicate that the luminescence imaging of water has potential for the dose distribution measurements for proton therapy dosimetry. PMID- 29350197 TI - A 3D correction method for predicting the readings of a PinPoint chamber on the CyberKnife(r) M6TM machine. AB - The use of small fields in radiation therapy techniques has increased substantially in particular in stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). However, as field size reduces further still, the response of the detector changes more rapidly with field size, and the effects of measurement uncertainties become increasingly significant due to the lack of lateral charged particle equilibrium, spectral changes as a function of field size, detector choice, and subsequent perturbations of the charged particle fluence. This work presents a novel 3D dose volume-to-point correction method to predict the readings of a 0.015 cc PinPoint chamber (PTW 31014) for both small static-fields and composite-field dosimetry formed by fixed cones on the CyberKnife(r) M6TM machine. A 3D correction matrix is introduced to link the 3D dose distribution to the response of the PinPoint chamber in water. The parameters of the correction matrix are determined by modeling its 3D dose response in circular fields created using the 12 fixed cones (5 mm-60 mm) on a CyberKnife(r) M6TM machine. A penalized least-square optimization problem is defined by fitting the calculated detector reading to the experimental measurement data to generate the optimal correction matrix; the simulated annealing algorithm is used to solve the inverse optimization problem. All the experimental measurements are acquired for every 2 mm chamber shift in the horizontal planes for each field size. The 3D dose distributions for the measurements are calculated using the Monte Carlo calculation with the MultiPlan(r) treatment planning system (Accuray Inc., Sunnyvale, CA, USA). The performance evaluation of the 3D conversion matrix is carried out by comparing the predictions of the output factors (OFs), off-axis ratios (OARs) and percentage depth dose (PDD) data to the experimental measurement data. The discrepancy of the measurement and the prediction data for composite fields is also performed for clinical SRS plans. The optimization algorithm used for generating the optimal correction factors is stable, and the resulting correction factors were smooth in the spatial domain. The measurement and prediction of OFs agree closely with percentage differences of less than 1.9% for all the 12 cones. The discrepancies between the prediction and the measurement PDD readings at 50 mm and 80 mm depth are 1.7% and 1.9%, respectively. The percentage differences of OARs between measurement and prediction data are less than 2% in the low dose gradient region, and 2%/1 mm discrepancies are observed within the high dose gradient regions. The differences between the measurement and prediction data for all the CyberKnife based SRS plans are less than 1%. These results demonstrate the existence and efficiency of the novel 3D correction method for small field dosimetry. The 3D correction matrix links the 3D dose distribution and the reading of the PinPoint chamber. The comparison between the predicted reading and the measurement data for static small fields (OFs, OARs and PDDs) yield discrepancies within 2% for low dose gradient regions and 2%/1 mm for high dose gradient regions; the discrepancies between the predicted and the measurement data are less than 1% for all the SRS plans. The 3D correction method provides an access to evaluate the clinical measurement data and can be applied to non standard composite fields intensity modulated radiation therapy point dose verification. PMID- 29350198 TI - Preparation of sub 3 nm copper nanoparticles by microwave irradiation in the presence of triethylene tetramin. AB - The preparation of sub 3 nm copper nanoparticles (CuNPs) in ethylene glycol (EG) using triethylene tetramine (TETA) as chelating and reducing agents via a rapid microwave (MW) irradiation is reported. The sub 3 nm CuNPs after MW irradiation are clearly seen from the electronic micrographs. The firm chelation of Cu2+ by TETA is illustrated by the dark blue color of Cu2+/TETA/EG solution and the redox reaction is confirmed by the appearance of red color of the mixtures. The optimal mole ratio of TETA/Cu 2+ is found to be 2.5/1 for preparing sub 3 nm CuNPs under the MW irradiation, operated at 800 W for 1 min. The plasmonic absorption lambda max demonstrated in UV-vis spectra are found to close to 200 nm for sub 3 nm CuNPs, comparing to 500 ~ 600 nm for regular, larger CuNPs. The extremely low Tm around 30 degrees C and the fusion/recrystallization sequence of sub 3 nm CuNPs can be directly measured by their differential scanning calorimetry thermograms. PMID- 29350199 TI - Cortical visual prostheses: from microstimulation to functional percept. AB - Cortical visual prostheses are intended to restore vision by targeted electrical stimulation of the visual cortex. The perception of spots of light, called phosphenes, resulting from microstimulation of the visual pathway, suggests the possibility of creating meaningful percept made of phosphenes. However, to date electrical stimulation of V1 has still not resulted in perception of phosphenated images that goes beyond punctate spots of light. In this review, we summarize the clinical and experimental progress that has been made in generating phosphenes and modulating their associated perceptual characteristics in human and macaque primary visual cortex (V1). We focus specifically on the effects of different microstimulation parameters on perception and we analyse key challenges facing the generation of meaningful artificial percepts. Finally, we propose solutions to these challenges based on the application of supervised learning of population codes for spatial stimulation of visual cortex. PMID- 29350200 TI - Leaf-templated, microwell-integrated microfluidic chips for high-throughput cell experiments. AB - As an alternative to conventional cell culture and animal testing, an organ-on-a chip is applied to study the biological phenomena of organ development and disease, as well as the interactions between human tissues and external stimuli such as chemicals, forces and electricity. The pattern design of a microfluidic channel is one of the key approaches to regulate cell growth and differentiation, because these channels work as a crucial vasculature system to control the fluidic flow throughout the organ-on-a-chip device. In this study, we introduce a novel leaf-templated, microwell-integrated microfluidic chip for high-throughput cell experiments, consisting of a leaf-venation layer for fluent fluid flow, and a microwell-array layer for cell to reside. Computational fluid dynamics analysis was carried out to study the fluidic flow within leaf-venation network, which was further used to optimize the design of microwell arrays. A simple leaf-venation mold-based microreplication method was developed to transfer the intact native leaf venation network into leaf-venation layer and 3D printing technology was used to fabricate the microwell-array layer. The layers were then assembled and used for perfusion culture, showing that leaf-templated microfluidic channels provided a sufficient culture medium for cells within each microwell. These results indicate a novel and effective strategy to generate a biomimetic microfluidic chip with an effective vascular transport system for high-throughput cell experiments. PMID- 29350201 TI - Moth-eye mimetic cytocompatible bactericidal nanotopography: a convergent design. AB - The rapid emergence of antibiotic resistant bacteria has prompted the need for radically different approaches to combat bacterial infections. Among these, bioinspired surface topographies have emerged as an effective sustainable strategy to deter bacterial infection. This study demonstrates the bactericidal activity and cytocompatibility of the moth-eye mimetic topography produced by thermal polymer nanoimprinting. The moth-eye topography was found to have bactericidal capabilities against Gram negative and Gram positive bacteria. Electron microscopy imaging revealed the bactericidal effect caused by mechanical rupture of the bacteria wall inflicted by the topography on the adhered cells. The cytocompatibility of the surfaces was evidenced by assessing the proliferation and morphology of keratinocytes cultured on the nanotopography. The technology meets important needs in medical implant technology for materials that not only have good biocompatibility but also antibacterial properties for reducing the risk of infections and related health complications. PMID- 29350202 TI - Observation of low temperature metastable states in complex CaMn7O12. AB - The low temperature magnetic behaviour of the multiferroic quadruple perovskite CaMn7O12 is investigated. The magneto-caloric effect in this material is presented for the first time. Along with the established magnetic transitions, T N1 ~ 90 K and T N2 ~ 45 K, an anomaly at 20 K is observed in our dc magnetization, ac susceptibility and dielectric measurements; below which, an inverse magnetocaloric effect is also observed in our -DeltaS M (T) plots. The neutron scattering measurements show minimal change between 10 K and 30 K in static correlations, but a clear change in energy and linewidth of the magnetic excitations is evident. The results suggest that only dynamic correlations change across T M ~ 20 K. The existence of multiple magnetic interactions below 45 K, with significant coupling between them, is demonstrated using an Arrott plot analysis of our magnetic data. Compatible conclusions are drawn from magnetocaloric plots. The peak change in isothermal magnetic entropy (-DeltaS M) is 1.3 JK-1 kg-1 and the value of refrigeration capacity in CaMn7O12 is 34.5 J . kg-1 at 7 T. PMID- 29350203 TI - Subungual exostosis on index finger in a child. PMID- 29350204 TI - PubMed indexing: Misconceptions. PMID- 29350205 TI - Silymarin: An interesting modality in dermatological therapeutics. PMID- 29350206 TI - Commentary on "Altered PIWI-LIKE 1 and PIWI-LIKE 2 mRNA expression in ejaculated spermatozoa of men with impaired sperm characteristics". PMID- 29350207 TI - Association between CYP2C19 and ABCB1 polymorphisms and clopidogrel resistance in clopidogrel-treated Chinese patients. AB - OBJECTIVE: To investigate the association between CYP2C19 and ABCB1 polymorphisms and clopidogrel resistance (CR) in patients with cardiovascular disease in Beijing district. METHODS: In total, 325 patients were enrolled in the study, including 101 experimental group patients and 224 control group patients. The experimental group was divided into CR group (n=30) and non-CR group (n=71) according to the adenosine diphosphate (ADP)-induced platelet inhibition rate in thromboelastography (TEG) (ADP-induced platelet inhibition rate of <30% was defined as CR and rate of 30%-100% was defined as non-CR). Genotypes, including CYP2C19*2, CYP2C19*3, CYP2C19*4, CYP2C19*5, CYP2C19*17, and ABCB1, were determined using time-of-flight mass spectrometry (Clin-TOF) and Sanger sequencing in all patients. RESULTS: In the experimental group, carriers of CYP2C19 heterozygous (*1/*2, n=46; *1/*3, n=7), and mutation homozygous (*2/*2, n=7; *2/*3, n=3; *3/*3, n=0) genotypes showed significantly lower ADP-induced platelet inhibition rates than noncarriers (*1/*1, n=38; p=0.035 and 0.001, respectively); the carriage of mutant CYP2C19*2 or *3 allele was significantly associated with an increased risk of CR. In contrast, carriers of ABCB1 heterozygous (TC, n=50) showed significantly lower ADP-induced platelet inhibition rates than noncarriers (CC, n=39, p=0.097), and there was no significant correlation between ABCB1 genotypes and higher CR risk. CONCLUSION: The carriage of CYP2C19*2 or *3 mutant allele was significantly associated with attenuated platelet response to clopidogrel and increased CR risk. The carriage of ABCB1 mutant allele was not significantly associated with CR risk. PMID- 29350208 TI - Protective effect of paracetamol in doxorubicin-induced cardiotoxicity in ischemia/reperfused isolated rat heart. AB - OBJECTIVE: Doxorubicin (DOX) induces cardiac dysfunction. Paracetamol (APAP) has also been established as an effective cardioprotective agent during ischemia/reperfusion. Therefore, this study aims to evaluate the effect of APAP on DOX-induced cardiotoxicity in ischemia/reperfused isolated rat heart. METHODS: A total of 36 rats were equally divided into four groups: control, DOX (30 min, 20 uM DOX perfusion), APAP (15 min before and after ischemia, 0.35 mM APAP perfusion), and DOX+APAP (perfused with the same protocol in DOX and APAP groups). The isolated hearts were perfused according to the Langendorff method. Cardiac parameters, including left ventricular developed pressure (LVDP), heart rate (HR), coronary flow (CF), and rate pressure product (RPP; LVDP*HR) were measured. Lactate dehydrogenase (LDH) concentration was also assessed. RESULTS: At the end of the baseline period, the RPP, HR, and CF values were lower in the DOX group than in the control group (p<0.01). Meanwhile, there were no significant differences between the values of cardiac function parameters in the DOX+APAP and control groups. In the reperfusion period, the RPP and CF values were significantly increased in the DOX+APAP group compared with the DOX group (p<0.05). Furthermore, the LDH concentration was decreased in the DOX+APAP group compared with the DOX group. CONCLUSION: APAP perfusion protected the hearts against DOX-induced cardiotoxicity in the baseline and ischemia/reperfusion conditions. These findings can be explained by the effect of APAP on antioxidant capacity and mitochondrial permeability transition pores. PMID- 29350209 TI - Molecular basis for CENP-N recognition of CENP-A nucleosome on the human kinetochore. PMID- 29350210 TI - Response to: Comment on "Differences in Ventilatory Threshold for Exercise Prescription in Outpatient Diabetic and Sarcopenic Obese Subjects". PMID- 29350211 TI - Correction: A niche that triggers aggressiveness within BRCA1-IRIS overexpressing triple negative tumors is supported by reciprocal interactions with the microenvironment. AB - [This corrects the article DOI: 10.18632/oncotarget.20892.]. PMID- 29350212 TI - Defining System Boundaries of an Institution Nitrogen Footprint. AB - A nitrogen (N) footprint quantifies the amount of reactive nitrogen released to the environment and can be measured at different scales. The N footprint of a university includes activities and consumption within its geographic boundaries as well as activities that support the institution. Determining system bounds of an N footprint depends on the institution's mission and provides a common baseline for comparison. A comparison of three scopes of the N footprint, which describe how emissions are directly related to an institution's activities, was conducted for seven institutions. Scopes follow the established definition for the carbon footprint. In this article, the authors propose a new system bounds definition (core campus versus adjunct). Two case studies were explored: how the N footprint of Dickinson College changed with air travel, and how the N footprint of the Marine Biological Laboratory changed with scientific research. Of the three scopes, scope 3 was consistently the largest proportion of the N footprint for all seven institutions. The core campus activities of Dickinson College made up 99 percent of its N footprint, with air travel making up the remaining 1 percent. The Marine Biological Laboratory's core campus activities made up 51 percent of its N footprint and the scientific research made up the remaining 49 percent. Institutions should define system bounds based on their mission and stay consistent with their boundaries following the baseline year. The core campus footprint could be used to compare institution footprints using consistent system bounds. How institutions define their boundaries will impact the recorded amount of nitrogen as well as how the institution will set reduction strategies. PMID- 29350213 TI - Erratum. AB - [This corrects the article DOI: 10.1177/2382120516684829.]. PMID- 29350214 TI - Erratum. AB - [This corrects the article DOI: 10.1177/2050313X17744072.]. PMID- 29350215 TI - Validation of prediction models: examining temporal and geographic stability of baseline risk and estimated covariate effects. AB - Background: Stability in baseline risk and estimated predictor effects both geographically and temporally is a desirable property of clinical prediction models. However, this issue has received little attention in the methodological literature. Our objective was to examine methods for assessing temporal and geographic heterogeneity in baseline risk and predictor effects in prediction models. Methods: We studied 14,857 patients hospitalized with heart failure at 90 hospitals in Ontario, Canada, in two time periods. We focussed on geographic and temporal variation in baseline risk (intercept) and predictor effects (regression coefficients) of the EFFECT-HF mortality model for predicting 1-year mortality in patients hospitalized for heart failure. We used random effects logistic regression models for the 14,857 patients. Results: The baseline risk of mortality displayed moderate geographic variation, with the hospital-specific probability of 1-year mortality for a reference patient lying between 0.168 and 0.290 for 95% of hospitals. Furthermore, the odds of death were 11% lower in the second period than in the first period. However, we found minimal geographic or temporal variation in predictor effects. Among 11 tests of differences in time for predictor variables, only one had a modestly significant P value (0.03). Conclusions: This study illustrates how temporal and geographic heterogeneity of prediction models can be assessed in settings with a large sample of patients from a large number of centers at different time periods. PMID- 29350216 TI - The Nitrogen Footprint Tool Network: A Multi-Institution Program To Reduce Nitrogen Pollution. AB - Anthropogenic sources of reactive nitrogen have local and global impacts on air and water quality and detrimental effects on human and ecosystem health. This article uses the Nitrogen Footprint Tool (NFT) to determine the amount of nitrogen (N) released as a result of institutional consumption. The sectors accounted for include food (consumption and upstream production), energy, transportation, fertilizer, research animals, and agricultural research. The NFT is then used for scenario analysis to manage and track reductions, which are driven by the consumption behaviors of both the institution itself and its constituent individuals. In this article, the first seven completed institution nitrogen footprint results are presented. The Nitrogen Footprint Tool Network aims to develop footprints for many institutions to encourage widespread upper level management strategies that will create significant reductions in reactive nitrogen released to the environment. Energy use and food purchases are the two largest sectors contributing to institution nitrogen footprints. Ongoing efforts by institutions to reduce greenhouse gas emissions also help to reduce the nitrogen footprint, but the impact of food production on nitrogen pollution has not been directly addressed by the higher education sustainability community. The Nitrogen Footprint Tool Network found that institutions could reduce their nitrogen footprints by optimizing food purchasing to reduce consumption of animal products and minimize food waste, as well as by reducing dependence on fossil fuels for energy. PMID- 29350217 TI - An Integrated Tool for Calculating and Reducing Institution Carbon and Nitrogen Footprints. AB - The development of nitrogen footprint tools has allowed a range of entities to calculate and reduce their contribution to nitrogen pollution, but these tools represent just one aspect of environmental pollution. For example, institutions have been calculating their carbon footprints to track and manage their greenhouse gas emissions for over a decade. This article introduces an integrated tool that institutions can use to calculate, track, and manage their nitrogen and carbon footprints together. It presents the methodology for the combined tool, describes several metrics for comparing institution nitrogen and carbon footprint results, and discusses management strategies that reduce both the nitrogen and carbon footprints. The data requirements for the two tools overlap substantially, although integrating the two tools does necessitate the calculation of the carbon footprint of food. Comparison results for five institutions suggest that the institution nitrogen and carbon footprints correlate strongly, especially in the utilities and food sectors. Scenario analyses indicate benefits to both footprints from a range of utilities and food footprint reduction strategies. Integrating these two footprints into a single tool will account for a broader range of environmental impacts, reduce data entry and analysis, and promote integrated management of institutional sustainability. PMID- 29350218 TI - Comparing Institution Nitrogen Footprints: Metrics for Assessing and Tracking Environmental Impact. AB - When multiple institutions with strong sustainability initiatives use a new environmental impact assessment tool, there is an impulse to compare. The first seven institutions to calculate nitrogen footprints using the Nitrogen Footprint Tool have worked collaboratively to improve calculation methods, share resources, and suggest methods for reducing their footprints. This article compares those seven institutions' results to reveal the common and unique drivers of institution nitrogen footprints. The footprints were compared by scope and sector, and the results were normalized by multiple factors (e.g., population, amount of food served). The comparisons found many consistencies across the footprints, including the large contribution of food. The comparisons identified metrics that could be used to track progress, such as an overall indicator for the nitrogen sustainability of food purchases. The comparisons also pointed to differences in system bounds of the calculations, which are important to standardize when comparing across institutions. The footprints were influenced by factors both within and outside of the institutions' ability to control, such as size, location, population, and campus use. However, these comparisons also point to a pathway forward for standardizing nitrogen footprint tool calculations, identifying metrics that can be used to track progress, and determining a sustainable institution nitrogen footprint. PMID- 29350219 TI - Reducing the Nitrogen Footprint of a Small Residential College. AB - The release of reactive nitrogen contributes to its accumulation in the environment, causing a variety of harmful effects. To measure Dickinson College's contribution to nitrogen pollution, and quantify the potential to reduce its contribution, we calculated the college's nitrogen footprint and simulated the effects of selected nitrogen mitigation measures. The analysis was obtained using the Nitrogen Footprint Tool, developed at the University of Virginia. Food production is by far the largest contributor to Dickinson's footprint, followed by heat and power. Transportation, sewage, and groundskeeping contribute relatively small amounts. Breaking food down into different food categories, meat and fish is the largest source of nitrogen, accounting for two-thirds of the food footprint. Simulations of individual mitigation measures showed that measures targeting food are the most impactful for reducing the college's nitrogen footprint. Two policy scenarios that combine multiple measures, one representing moderate action and the other more aggressive action, were also analyzed. They are projected to reduce Dickinson's footprint by roughly 15 and 25 percent, respectively, while reducing operating costs. Achieving these reductions would require substantial changes in dietary choices by members of the campus community. PMID- 29350220 TI - Nephrotic syndrome in primary myelofibrosis with renal extramedullary hematopoiesis and glomerulopathy in the JAK inhibitor era. AB - Primary myelofibrosis (PMF) is an uncommon form of myeloproliferative neoplasm (MPN) characterized by a proliferation of predominantly megakaryocytes and granulocytes in the bone marrow that, in fully-developed disease, is associated with reactive deposition of fibrous connective tissue, extramedullary hematopoiesis (EMH), and splenomegaly. Kidney involvement is rare and clinically presents with proteinuria, nephrotic syndrome, and renal insufficiency. Renal damage can be due to EMH and glomerulopathy. Renal EMH presents three patterns: infiltration of the interstitium with possible renal failure caused by functional damage of parenchyma and vessels, infiltration of capsule and pericapsular adipose tissue, and sclerosing mass-like lesions that can cause hydronephrosis and hydroureter with obstructive uropathy and renal failure. Glomerulopathy associated with PMF is rarely described, ranging from 1 month to 18 years from diagnosis of the neoplasm to renal biopsy. It is characterized by expansion and hypercellularity mesangial, segmental sclerosis, features of chronic thrombotic microangiopathy (TMA), and intracapillary hematopoietic cells infiltrating in absence of immune-mediated glomerulonephritis. We present a nephrotic syndrome in PMF-related glomerulopathy, associated with EMH, without renal failure, in a patient under treatment for 2 years with JAK2 inhibitor ruxolitinib. Despite treatment, the patient died 7 months after renal biopsy. Nephrologists still know very little about this topic and there is no homogeneous data about incidence, pathogenesis, and optimal treatment of this poor prognostic PMF-associated nephrotic syndrome. We focus on data in the literature in the hope of stimulating hematologists, nephrologists, pathologists to future studies about the natural history of renal involvement, useful for optimal management of this rare pathology. PMID- 29350221 TI - Assessing the Social and Environmental Costs of Institution Nitrogen Footprints. AB - This article estimates the damage costs associated with the institutional nitrogen (N) footprint and explores how this information could be used to create more sustainable institutions. Potential damages associated with the release of nitrogen oxides (NOx), ammonia (NH3), and nitrous oxide (N2O) to air and release of nitrogen to water were estimated using existing values and a cost per unit of nitrogen approach. These damage cost values were then applied to two universities. Annual potential damage costs to human health, agriculture, and natural ecosystems associated with the N footprint of institutions were $11.0 million (2014) at the University of Virginia (UVA) and $3.04 million at the University of New Hampshire (UNH). Costs associated with the release of nitrogen oxides to human health, in particular the use of coal-derived energy, were the largest component of damage at UVA. At UNH the energy N footprint is much lower because of a landfill cogeneration source, and thus the majority of damages were associated with food production. Annual damages associated with release of nitrogen from food production were very similar at the two universities ($1.80 million vs. $1.66 million at UVA and UNH, respectively). These damages also have implications for the extent and scale at which the damages are felt. For example, impacts to human health from energy and transportation are generally larger near the power plants and roads, while impacts from food production can be distant from the campus. Making this information available to institutions and communities can improve their understanding of the damages associated with the different nitrogen forms and sources, and inform decisions about nitrogen reduction strategies. PMID- 29350222 TI - A Prescription for Note Bloat: An Effective Progress Note Template. AB - BACKGROUND: United States hospitals have widely adopted electronic health records (EHRs). Despite the potential for EHRs to increase efficiency, there is concern that documentation quality has suffered. OBJECTIVE: To examine the impact of an educational session bundled with a progress note template on note quality, length, and timeliness. DESIGN: A multicenter, nonrandomized prospective trial. SETTING: Four academic hospitals across the United States. PARTICIPANTS: Intern physicians on inpatient internal medicine rotations at participating hospitals. INTERVENTION: A task force delivered a lecture on current issues with documentation and suggested that interns use a newly designed best practice progress note template when writing daily progress notes. MEASUREMENTS: Note quality was rated using a tool designed by the task force comprising a general impression score, the validated Physician Documentation Quality Instrument, 9 item version (PDQI-9), and a competency questionnaire. Reviewers documented number of lines per note and time signed. RESULTS: Two hundred preintervention and 199 postintervention notes were collected. Seventy percent of postintervention notes used the template. Significant improvements were seen in the general impression score, all domains of the PDQI-9, and multiple competency items, including documentation of only relevant data, discussion of a discharge plan, and being concise while adequately complete. Notes had approximately 25% fewer lines and were signed on average 1.3 hours earlier in the day. CONCLUSIONS: The bundled intervention for progress notes significantly improved the quality, decreased the length, and resulted in earlier note completion across 4 academic medical centers. PMID- 29350223 TI - What Is Career Success for Academic Hospitalists? A Qualitative Analysis of Early Career Faculty Perspectives. AB - BACKGROUND: Understanding the concept of career success is critical for hospital medicine groups seeking to create sustainably rewarding faculty positions. Conceptual models of career success describe both extrinsic (compensation and advancement) and intrinsic (career satisfaction and job satisfaction) domains. How hospitalists define career success for themselves is not well understood. In this study, we qualitatively explore perspectives on how early-career clinician educators define career success. METHODS: We developed a semistructured interview tool of open-ended questions validated by using cognitive interviewing. Transcribed interviews were conducted with 17 early-career academic hospitalists from 3 medical centers to thematic saturation. A mixed deductiveinductive, qualitative, analytic approach was used to code and map themes to the theoretical framework. RESULTS: The single most dominant theme participants described was "excitement about daily work," which mapped to the job satisfaction organizing theme. Participants frequently expressed the importance of "being respected and recognized" and "dissemination of work," which were within the career satisfaction organizing theme. The extrinsic organizing themes of advancement and compensation were described as less important contributors to an individual's sense of career success. Ambivalence toward the "academic value of clinical work," "scholarship," and especially "promotion" represented unexpected themes. CONCLUSIONS: The future of academic hospital medicine is predicated upon faculty finding career success. Clinician-educator hospitalists view some traditional markers of career advancement as relevant to success. However, early-career faculty question the importance of some traditional external markers to their personal definitions of success. This work suggests that the selfconcept of career success is complex and may not be captured by traditional academic metrics and milestones. PMID- 29350225 TI - Visible-light-induced multicomponent cascade cycloaddition involving N-propargyl aromatic amines, diaryliodonium salts and sulfur dioxide: rapid access to 3 arylsulfonylquinolines. AB - A visible-light-induced, Eosin Y catalyzed three-component synthesis of 3 arylsulfonylquinoline derivatives through N-propargyl aromatic amines, diaryliodonium salts and sulfur dioxide has been discovered. This transformation represents an efficient and attractive method for the straightforward synthesis of 3-arylsulfonylquinoline derivatives via the formation of C-S bonds and quinolines in one step. In addition, it exhibits good substrate scope and functional group tolerance. The use of easy-to-handle diaryliodonium salts, sulfur dioxide sources and the cheap photocatalyst Eosin Y together with facile operation at room temperature makes this protocol very practical. PMID- 29350226 TI - The ortho-benzyne cation is not planar. AB - A recent review on the photoionisation of the C6H4 isomer ortho-benzyne suggests that bands reported in earlier photoelectron spectra might be due to side products or contaminations, while computations raise doubts, whether the cation has a planar geometry. We therefore reinvestigate the photoionisation of ortho benzyne, generated by pyrolysis from benzocyclobutenedione, by photoion mass selected threshold photoelectron (ms-TPE) spectroscopy using synchrotron radiation. The experiments are accompanied by a theoretical study that investigates the structure of the ortho-benzyne cation systematically as a function of the computational method, up to CASPT2(11,14) ab initio computations. Our study leads to a re-evaluation of the ionisation energy of ortho-benzyne. It reveals that the ortho-benzyne cation has indeed a twisted C2 geometry rather than a C2v structure. A vertical ionisation energy IEvert of 9.77 eV and an adiabatic ionisation energy of IEad = 9.56 eV are computed for ortho-benzyne. A Franck-Condon simulation of the photoelectron spectrum based on the CASPT2 results and including three electronic states of the cation is in agreement with the experiment and yields IEad = 9.51 eV (+50 meV/-100 meV). Since this value is in contrast with previous work, the ionisation energy has to be revised based on our study. Computational methods based on density functional theory give a reasonable description of the cationic ground state, but fail for the corresponding excited electronic states that are indispensible for a proper assignment of the photoelectron spectrum. PMID- 29350228 TI - Correction: Films of bacteria at interfaces: three stages of behaviour. AB - Correction for 'Films of bacteria at interfaces: three stages of behaviour' by Liana Vaccari et al., Soft Matter, 2015, 11, 6062-6074. PMID- 29350227 TI - Albusnodin: an acetylated lasso peptide from Streptomyces albus. AB - We describe a lasso peptide, albusnodin, that is post-translationally modified with an acetyl group, the first example of a lasso peptide with this modification. Using heterologous expression, we further show that the acetyltransferase colocalized with the albusnodin gene cluster is required for the biosynthesis of this lasso peptide. This type of lasso peptide is widespread in Actinobacteria with 44 examples found in currently sequenced genomes. PMID- 29350229 TI - Aggregate evolution in aqueous solutions of a Gemini surfactant derived from dehydroabietic acid. AB - Innovations in surfactant structure are a feasible way to probe molecular self assembly principles. Herein, the solution behaviour of a newly synthesized Gemini surfactant derived from dehydroabietic acid, abbreviated R-(EO)-E-R, was investigated using surface tension, fluorescence, isothermal titration calorimetry (ITC), rheology, freeze-fracture transmission electron microscopy (FF TEM) and cryogenic transmission electron microscopy (cryo-TEM) methods. R-(EO)-E R has two large, rigid hydrophobic groups. At low concentrations, R-(EO)-E-R forms micelles with an aggregation number of approximately 10, which is smaller than those of Gemini surfactants containing flexible alkyl tails. In addition, the micellization process is less exothermic because of the rigidity of the hydrophobic portions. As the concentration increases, R-(EO)-E-R without any additives forms wormlike micelles, endowing the solution with an obvious viscoelasticity. Further increases in the concentration lead to the coexistence of single-walled vesicles, double-walled vesicles and rarely observed long, tubular vesicles. This behaviour is attributed to the two large, rigid hydrophobic groups of R-(EO)-E-R, which increase the density of the hydrophobic portion around the ionic head groups and facilitate the formation of aggregates with lower curvatures and asymmetric morphology. Surfactants containing rigid hydrophobic portions are expected to result in more delicate, self-assembled morphologies with broad applications. PMID- 29350230 TI - Selective growth of two-dimensional phosphorene on catalyst surface. AB - Although the study of black phosphorene (BP) and its isomers has attracted enormous attention, the method of synthesizing high-quality samples in a large area is still pending. Here we explore the potential of using the chemical vapor deposition method to synthesize large-area two-dimensional (2D) phosphorene films on metal surfaces. Our ab initio calculations show that BP can be synthesized by using tin (Sn) as a catalyst, while one of its isomers, blue phosphorene (BLP), is very possible to be synthesized by using most other metals, such as Ag and Au. Besides, our study also suggests that the large binding energy between the 2D phosphorene and the active metal substrate may prohibit the exfoliation of the 2D phosphorene for real applications and, therefore, tin, silver and gold are predicted to be the most suitable catalysts for the synthesis of BP and BLP. PMID- 29350231 TI - Tuning the sensitivity of lanthanide-activated NIR nanothermometers in the biological windows. AB - Lanthanide-activated SrF2 nanoparticles with a multishell architecture were investigated as optical thermometers in the biological windows. A ratiometric approach based on the relative changes in the intensities of different lanthanide (Nd3+ and Yb3+) NIR emissions was applied to investigate the thermometric properties of the nanoparticles. It was found that an appropriate doping with Er3+ ions can increase the thermometric properties of the Nd3+-Yb3+ coupled systems. In addition, a core containing Yb3+ and Tm3+ can generate light in the visible and UV regions upon near-infrared (NIR) laser excitation at 980 nm. The multishell structure combined with the rational choice of dopants proves to be particularly important to control and enhance the performance of nanoparticles as NIR nanothermometers. PMID- 29350232 TI - Impact of droplets on immiscible liquid films. AB - The impact of droplets on liquid films is a ubiquitous phenomenon not only in nature but also in many industrial applications. Compared to the widely-studied impact of droplets on films of identical fluids, the impact of droplets on immiscible films has received far less attention. In the present work, we show using high-speed imaging that immiscibility has a profound effect on the impact dynamics. The impact of a water droplet on an oil film leads to the formation of a compound crown followed by a central jet, whereas that of an oil droplet on a water film results in rapid spreading on the film surface driven by a large, positive spreading factor. In the former scenario, the central jet occurs due to the severe stretching of the droplet during the formation of the crown and then the retraction of the droplet by capillarity, which leads to the collision of fluid at the impact point. A model for the elongation dynamics of the central jet is proposed based on energy conservation. The effects of key parameters controlling the impact process are analysed, including the droplet Ohnesorge and Weber numbers, the viscosity ratio, and the dimensionless film thickness. Different impact outcomes are discussed, such as bouncing, deposition, and oscillation of the impact droplet, the formation and collapse of the compound crown, and the formation and tip-pinching of the central jet. This study not only provides physical insights into the impact dynamics, but could also facilitate the control and optimisation of the droplet impact process in a number of applications as highlighted herein. PMID- 29350233 TI - Stacking faults in Zr(Fe, Cr)2 Laves structured secondary phase particle in Zircaloy-4 alloy. AB - Stacking faults (SFs) in secondary phase particles (SPPs), which generally crystallize in the Laves phase in Zircaloy-4 (Zr-4) alloy, have been frequently observed by researchers. However, few investigations on the nano-scale structure of SFs have been carried out. In the present study, an SF containing C14 structured SPP, which located at grain boundaries (GBs) in the alpha-Zr matrix, was chosen to be investigated, for its particular substructure as well as location, aiming to reveal the nature of the SFs in the SPPs in Zr-4 alloy. It was indicated that the SFs in the C14 structured SPP actually existed in the local C36 structured Laves phase, for their similarities in crystallography. The C14 -> C36 phase transformation, which was driven by synchroshearing among the (0001) basal planes, was the formation mechanism of the SFs in the SPPs. By analyzing the strained regions near the SPP, a model for understanding the driving force of the synchroshear was proposed: the interaction between SPP and GB resulted in the Zener pinning effect, leading to the shearing parallel to the (0001) basal planes of the C14 structured SPP, and the synchroshear was therefore activated. PMID- 29350234 TI - Dissociative electron attachment and anion-induced dimerization in pyruvic acid. AB - We report partial cross sections for the dissociative electron attachment to pyruvic acid. A rich fragmentation dynamics is observed. Electronic structure calculations facilitate the identification of complex rearrangement reactions that occur during the dissociation. Furthermore, a number of fragment anions produced at electron energies close to 0 eV are observed, that cannot originate from single electron-molecule collisions. We ascribe their production to secondary reactions of the transient anions with neutral molecules. Such reactions turn out to be unusually efficient; the most probable reason for this is that they proceed via the formation of a double-hydrogen-bonded complex followed by an ultrafast proton transfer between the reaction partners. PMID- 29350235 TI - Pressure induced photoluminescence modulation in a wide range and synthesis of monodispersed ternary AgCuS nanocrystal based on Ag2S nanocrystals. AB - Binary Ag2S nanocrystals (NCs) have many potential optical applications because of their low toxicity, narrow direct band gaps and near-infrared photoluminescence (PL) with high emission efficiency. However, due to its small exciton Bohr radius (2.2 nm), the PL spectra of Ag2S NCs can only be modulated below ~1200 nm with increasing particle size. Meanwhile, ternary silver copper chalcogenides (AgCuX, X = S, Se) have also attracted increased attention in recent years. Temperature-dependent structural phase transformation leads electrical transport to exhibit fascinating transitions between p and n type conduction, which makes AgCuS and AgCuSe ideal materials for diode or transistor devices. Nevertheless, the traditional method to synthesize these materials is mainly through melting the mixture of Ag, Cu and S/Se powder under extremely high reaction temperatures (973-1373 K) and long reaction time, forming a bulk product. Therefore, the synthesis of high quality monodispersed and size-tunable AgCuS or AgCuSe NCs is still a challenge. To address these issues, in this paper, we report using Ag2S NCs as a template, a method to synthesize monodispersed and size-tunable beta-AgCuS NCs via ion exchange and diffusion processes. Similarly, monodispersed beta-AgCuSe NCs were also synthesized by this simple and reproducible strategy. This synthetic method opens new avenues for investigating the size-, morphology- and temperature-dependent phase transitions of these ternary AgCuS and AgCuSe materials. Thus, the corresponding electrical transport between p and n type conduction can be studied in the future. Furthermore, we systematically investigated the pressure-dependent PL properties and band gap modulation of monodispersed Ag2S NCs using in situ high pressure PL and absorption spectroscopy. We found that the PL peak of 6.0 nm for Ag2S NCs could be easily adjusted from ~1200 to 1900 nm with increasing pressure from 0 to 5.1 GPa, which greatly extends the wavelength range of the PL peak beyond that of other approaches. PMID- 29350236 TI - Dose optimization of total or partial skin electron irradiation by thermoluminescent dosimetry. AB - BACKGROUND: Due to the complex surface of the human body, total or partial skin irradiation using large electron fields is challenging. The aim of the present study was to quantify the magnitude of dose optimization required after the application of standard fields. METHODS: Total skin electron irradiation (TSEI) was applied using the Stanford technique with six dual-fields. Patients presenting with localized lesions were treated with partial skin electron irradiation (PSEI) using large electron fields, which were individually adapted. In order to verify and validate the dose distribution, in vivo dosimetry with thermoluminescent dosimeters (TLD) was performed during the first treatment fraction to detect potential dose heterogeneity and to allow for an individual dose optimization with adjustment of the monitor units (MU). RESULTS: Between 1984 and 2017, a total of 58 patients were treated: 31 patients received TSEI using 12 treatment fields, while 27 patients underwent PSEI and were treated with 4-8 treatment fields. After evaluation of the dosimetric results, an individual dose optimization was necessary in 21 patients. Of these, 7 patients received TSEI (7/31). Monitor units (MU) needed to be corrected by a mean value of 117 MU (+/-105, range 18-290) uniformly for all 12 treatment fields, corresponding to a mean relative change of 12% of the prescribed MU. In comparison, the other 14 patients received PSEI (14/27) and the mean adjustment of monitor units was 282 MU (+/-144, range 59-500) to single or multiple fields, corresponding to a mean relative change of 22% of the prescribed MU. A second dose optimization to obtain a satisfying dose at the prescription point was need in 5 patients. CONCLUSIONS: Thermoluminescent dosimetry allows an individual dose optimization in TSEI and PSEI to enable a reliable adjustment of the MUs to obtain the prescription dose. Especially in PSEI in vivo dosimetry is of fundamental importance. PMID- 29350237 TI - Long-term changes in multimodal intensive tinnitus therapy : A 5-year follow-up. AB - BACKGROUND: We present 5-year follow-up data for tinnitus-specific and comorbid depressive symptoms as well as stress-related outcome variables of an intensive multimodal 7-day tinnitus therapy. METHOD: Tinnitus burden (Tinnitus Questionnaire), stress (Perceived Stress Questionnaire), and depressive symptomatology (General Depression Scale) were measured at the 5-year follow-up after a multimodal intensive 7-day intervention. In all, 94 patients participated in the study. RESULTS: All outcome variables showed significant improvement at the end of the 7-day intensive treatment. These effects remained significant after 5 years. CONCLUSION: The results of the present study support the effectiveness of the 7-day multimodal intensive therapy for tinnitus. Posttreatment improvements were related to both tinnitus burden as well as stress and depressive symptoms and were maintained at the 5-year follow-up. PMID- 29350238 TI - [Female patient with pulsatile tinnitus]. PMID- 29350239 TI - [The ABC guide for the treatment of posterior shoulder instability]. AB - BACKGROUND: Posterior glenohumeral instability (PGHI) is an often unrecognized or misdiagnosed type of shoulder instability due to its heterogenic clinical and radiological presentation. CLASSIFICATION: The ABC classification for PGHI is based on the different pathomechanisms and recommended treatment standards and is therefore a guide to finding the correct diagnosis and therapy for affected patients. There are different types of PGHI: A (first time), B (dynamic), C (static). These groups are further classified based on pathomechanical principles: A1: subluxation, A2: dislocation; B1: functional, B2: structural; C1: constitutional, C2: acquired. THERAPY: In patients with type 1 PGHI (A1, B1, C1) conservative treatment is recommended while in patients with type 2 PGHI (A2, B2, C2) surgical treatment can be considered based on structural defects, clinical symptoms, chronicity, age, functional demand, and patient-specific health status. In addition it has to be considered, that there is the possibility of coexisting or overlapping subtypes as well as the chance of progression from one category into another over time. PMID- 29350240 TI - Left ventricular endocardial pacing for the critically ill. PMID- 29350241 TI - The airway occlusion pressure (P0.1) to monitor respiratory drive during mechanical ventilation: increasing awareness of a not-so-new problem. PMID- 29350242 TI - Is there a single non-painful procedure in the intensive care unit? It depends! PMID- 29350243 TI - Current opinions on nephrolithiasis associated with primary hyperparathyroidism. AB - Nephrolithiasis is a common urological disease and could be secondary to primary hyperparathyroidism (PHPT). PHPT is traditionally characterised with hypercalcaemia. Recently, a normocalcemic PHPT has been officially recognised at the International Workshops. Regarding this new phenotype, nephrolithiasis is frequently found in studies that evaluate low bone mass. However, until now, no study on aetiology of nephrolithiasis considered normocalcemic PHPT. Hypercalciuria related to PHPT is considered as an important risk factor of stone formation in hypercalcemic PHPT, but the precise relationships between hypercalcemic PHPT and nephrolithiasis and between normocalcemic PHPT and nephrolithiasis remain unclear. In patients with hypercalcemic PHPT, after a surgical cure of PHPT, the renal calcium excretion and stone recurrence rate reduce but remain higher above health controls. This finding implies that abnormalities not caused by PHPT also probably affect stone formation. According to the new guideline, the presence of stones indicates the need for parathyroidectomy in patients with either hypercalcemic or normocalcemic PHPT unless contraindications exist. Patients with contraindications for parathyroidectomy or those who do not want to receive parathyroidectomy should be monitored for signs of disease progression and given of medical management. Moreover, due to decreased but significantly higher frequency of nephrolithiasis above those of healthy controls, patients with nephrolithiasis associated with PHPT after parathyroidectomy still should be motivated to explore strategies to prevent stone occurrence. PMID- 29350245 TI - Chitinophaga caseinilytica sp. nov., a casein hydrolysing bacterium isolated from forest soil. AB - A novel casein hydrolysing bacterium designated strain S-52T was isolated from Kyonggi University forest soil. Cells were strictly aerobic, Gram stain-negative, oxidase- and catalase- positive, non-motile, non-spore-forming, rod-shaped, and golden-yellow-pigmented. Strain S-52T hydrolysed casein. It was able to grow at 20-37 degrees C (optimum 25-32 degrees C), pH 6.5-11.0 (optimum 7-9.5), and at 3% (w/v) NaCl concentration. Strain exhibits flexirubin-type pigments. Phylogenetic analysis based on 16S rRNA gene sequence revealed that strain S-52T formed a lineage within the genus Chitinophaga that was distinct from other species of the genus. Closest member was Chitinophaga barathri YLT18T (97.16% 16 S rRNA gene sequence similarity). The major cellular fatty acids were iso-C15:0, C16:1omega5c, iso-C17:0 3-OH, and summed feature 3 (C16:1omega7c and/or C16: 1omega6c). MK-7 was sole respiratory quinone. The major polar lipid was phosphatidylethanolamine. The DNA G + C content of strain S-52T was 48.8 mol%. DNA-DNA relatedness of strain S-52T with Chitinophaga barathri was 42.5%. On the basis of phenotypic, genotypic, phylogenetic, and chemotaxonomic characterization, S-52T represents a novel species in the genus Chitinophaga, for which the name Chitinophaga caseinilytica sp. nov. is proposed. The type strain is S-52T (= KEMB 9005-540T = KACC 19118T = NBRC 112679T). PMID- 29350244 TI - Autophagy-related (ATG) 11, ATG9 and the phosphatidylinositol 3-kinase control ATG2-mediated formation of autophagosomes in Arabidopsis. AB - KEY MESSAGE: Using quantitative assays for autophagy, we analyzed 4 classes of atg mutants, discovered new atg2 phenotypes and ATG gene interactions, and proposed a model of autophagosome formation in plants. Plant and other eukaryotic cells use autophagy to target cytoplasmic constituents for degradation in the vacuole. Autophagy is regulated and executed by a conserved set of proteins called autophagy-related (ATG). In Arabidopsis, several groups of ATG proteins have been characterized using genetic approaches. However, the genetic interactions between ATG genes have not been established and the relationship between different ATG groups in plants remains unclear. Here we analyzed atg2, atg7, atg9, and atg11 mutants and their double mutants at the physiological, biochemical, and subcellular levels. Involvement of phosphatidylinositol 3-kinase (PI3K) in autophagy was also tested using wortmannin, a PI3K inhibitor. Our mutant analysis using autophagy markers showed that atg7 and atg2 phenotypes are more severe than those of atg11 and atg9. Unlike other mutants, atg2 cells accumulated several autophagic vesicles that could not be delivered to the vacuole. Analysis of atg double mutants, combined with wortmannin treatment, indicated that ATG11, PI3K, and ATG9 act upstream of ATG2. Our data support a model in which plant ATG1 and PI3K complexes play a role in the initiation of autophagy, whereas ATG2 is involved in a later step during the biogenesis of autophagic vesicles. PMID- 29350246 TI - Data-Driven Quality Improvement Project to Increase the Value of the Congenital Echocardiographic Report. AB - Echocardiography is the primary diagnostic modality for congenital heart disease patients. The written report is used to communicate with the care team and organization is often divided into the body with detailed findings and the conclusions with important findings summarized. Strategies to increase workflow efficiency include batch writing of reports after performance of multiple echocardiograms and the use of report templates which may contribute to discrepancies within report leading to potential downstream medical errors. The aim of this project was to measure the rate of inconsistencies in the echocardiogram reports and through an iterative series of process improvement decrease this rate while maintaining sonographer efficiency and diagnostic accuracy. The discrepancy rate, diagnostic error rate, and sonographer productivity were collected one-year prior and during the iterative quality improvement process. The primary outcome and discrepancies in reports were determined by two reviewers: an experienced pediatric echocardiographic cardiologist and a senior sonographer. Minor discrepancies were defined as contradictions between the body and the conclusion of the report that were unlikely to affect patient care. Major discrepancies were defined as discrepancies between the body and the conclusion that had significant potential to affect patient care. Sonographer productivity was measured as studies per sonographer per month. Our primary intervention was to initiate a quarterly QI meeting and to decrease the batch writing of preliminary echocardiogram reports. No major discrepancies were identified pre- or post-intervention. The minor discrepancies decreased from 40.7 to 6%. Sonographer productivity was not significantly changed with a slight increase from 100 studies/sonographer/month during the baseline to 101 studies/sonographer/month during the intervention. There was no change in major or minor diagnostic error rate. Our quality improvement intervention increased the value of our reports by significantly decreasing minor discrepancies without negatively impacting sonographer productivity or diagnostic accuracy. PMID- 29350247 TI - Prolonged PR Interval at Birth Predicting the High Occurrence of Fatal Atrioventricular Block in Hypoplastic Left Heart Syndrome. AB - Infants with hypoplastic left heart syndrome (HLHS) are at high mortality especially when they are associated with bradyarrhythmias. However, the risk factor of developing high-grade atrioventricular block (HAVB) is still unclear. Seventy-three patients with HLHS in our institutions from 2002 to 2011 were enrolled. The survival rate was assessed by the anatomical types, treatments, occurrence of HAVB, severe tricuspid regurgitation (TR), and restrictive atrial septal defect (ASD) along with electrocardiogram findings at birth. There were 23 (32%) cardiogenic and 7 (10%) non-cardiogenic deaths. The occurrence rate of HAVB but not severe TR or restrictive ASD was higher in 30 deceased patients than in 43 survived patients [7 (23%) vs. 1 (2.3%), p = 0.0038]. The overall mortality rate was higher in patients with HAVB than in those without it (p = 0.0002). Of 7 deceased patients with HAVB, 6 HAVB occurred within 10 days post-surgery, and 3 HAVB led to the early death. The mortality rate of patients with prolonged PR (>= 0.15 s) but not wide QRS (> 0.08 s) or prolonged QTc (> 0.43 s) at birth was higher than each without it (p = 0.0106). Multivariate analysis indicated that prolonged PR but no other variables was independently associated with the mortality (hazard ratio: 2.948, p = 0.0104). Prolonged PR at birth in HLHS infants predicts the development of fatal HAVB. PMID- 29350248 TI - Natural variation and genetic make-up of leaf blade area in spring barley. AB - KEY MESSAGE: GWAS analysis for leaf blade area (LA) revealed intriguing genomic regions associated with putatively novel QTL and known plant stature-related phytohormone and sugar-related genes. Despite long-standing studies in the morpho physiological characters of leaf blade area (LA) in cereal crops, advanced genetic studies to explore its natural variation are lacking. The importance of modifying LA in improving cereal grain yield and the genes controlling leaf traits have been well studied in rice but not in temperate cereals. To better understand the natural genetic variation of LA at four developmental stages, main culm LA was measured from 215 worldwide spring barleys including 92 photoperiod sensitive accessions [PHOTOPERIOD RESPONSE LOCUS 1 (Ppd-H1)] and 123 accessions with reduced photoperiod sensitivity (ppd-H1) locus under controlled greenhouse conditions (long-day; 16/8 h; ~ 20/~ 16 degrees C day/night). The LA of Ppd-H1 carrying accessions was always smaller than in ppd-H1-carrying accessions. We found that nine SNPs from the Ppd-H1 gene were present in the collection of which marker 9 (M9; G/T in the CCT-domain) showed the most significant and consistent effect on LA at all studied developmental stages. Genome-wide association scans (GWAS) showed that the accessions carrying the ppd-H1 allele T/M9 (late heading) possessed more genetic variation in LA than the Ppd-H1 group carrying G/M9 (early heading). Several QTL with major effects on LA variation were found close to plant stature-related heading time, phytohormone- and sugar-related genes. The results provide evidence that natural variation of LA is an important source for improving grain yield, adaptation and canopy architecture of temperate cereals. PMID- 29350249 TI - Efficacy of phloroglucinol for treatment of abdominal pain: a systematic review of literature and meta-analysis of randomised controlled trials versus placebo. AB - AIM: Phloroglucinol is a musculotropic anti-spasmodic drug. It is frequently prescribed in many European countries with a considerable cost for health services. The purpose of this study was to review the existing randomised controlled trials (RCT) comparing the efficacy of phloroglucinol treating abdominal pain versus placebo. METHODS: A literature search was carried out up to May 2017 to select RCT comparing the effect of phloroglucinol versus placebo with intensity of abdominal pain as an endpoint. Studies concerning obstetric or gynaecologic-related pain were not included. RESULTS: Three RCT were included and then analysed for risk of bias and meta-analysed. Only one RCT found that phloroglucinol was superior to placebo, although with a high risk of bias. The meta-analysis found a risk ratio of 1.10 (95% CI 0.95, 1.27) with no statistical significance. DISCUSSION: There is insufficient data to justify the wide-spread prescription of phloroglucinol for alleviating abdominal pain. PMID- 29350250 TI - [Abdominal injuries in polytraumatized adults : Systematic review]. AB - Abdominal injuries are potentially life-threatening and occur in 20-25% of all polytraumatized patients. Blunt trauma is the main mechanism. The liver and spleen are most commonly injured and much less often the intestines. The clinical evaluation proves equivocal in many cases; therefore, the gold standard is computed tomography (CT), which has been increasingly used even in hemodynamically weakly stable or sometimes even unstable patients because it promptly provides precise diagnostic findings, which present the basis for successful therapy. Hemodynamically unstable patients always need an exploratory laparotomy (EL). An EL should also be carried out with a positive focused assessment with sonography for trauma (FAST) or CT for severe parenchymal lesions, hollow organ lesions, intraperitoneal bladder lesions, peritonitis and organ evisceration, impalement injuries and lesions of the abdominal fascia. Hemodynamically stable patients without signs of peritonitis and a lack of such findings can often be treated conservatively irrespective of the extent of an injury. Angiography (and if needed embolization) can additionally be diagnostically and therapeutically utilized. PMID- 29350251 TI - Pyramidal cell-selective GluN1 knockout causes impairments in salience attribution and related EEG activity. AB - Schizophrenia is a disabling psychiatric disease characterized by symptoms including hallucinations, delusions, social withdrawal, loss of pleasure, and inappropriate affect. Although schizophrenia is marked by dysfunction in dopaminergic and glutamatergic signaling, it is not presently clear how these dysfunctions give rise to symptoms. The aberrant salience hypothesis of schizophrenia argues that abnormal attribution of motivational salience to stimuli is one of the main contributors to both positive and negative symptoms of schizophrenia. The proposed mechanisms for this hypothesis are overactive striatal dopaminergic and hypoactive glutamatergic signaling. The current study assessed salience attribution in mice (n = 72) using an oddball paradigm in which an infrequent stimulus either co-occurred with shock (conditioned group) or was presented alone (non-conditioned group). Behavioral response (freezing) and electroencephalogram (whole brain and amygdala) were used to assess salience attribution. Mice with pyramidal cell-selective knockout of ionotropic glutamate receptors (GluN1) were used to reproduce a prominent physiological change involved in schizophrenia. Non-conditioned knockout mice froze significantly more in response to the unpaired stimulus than non-conditioned wild-type mice, suggesting that this irrelevant cue acquired motivational salience for the knockouts. In accordance with this finding, low-frequency event-related spectral perturbation was significantly increased in non-conditioned knockout mice relative to both conditioned knockout and non-conditioned wild-type mice. These results suggest that pyramidal cell-selective GluN1 knockout leads to inappropriate attribution of salience for irrelevant stimuli as characterized by abnormalities in both behavior and brain circuitry functions. PMID- 29350252 TI - Risk factors of patients with pocket infection. PMID- 29350253 TI - Direct transfer of STEMI patients to cardiac catheterization laboratory : Prognostic relevance for in-hospital mortality. AB - BACKGROUND: Although the incidence of acute myocardial infarction and in-hospital mortality after ST-elevation myocardial infarction (STEMI) has declined substantially in countries that have established primary percutaneous coronary interventions (pPCI) over the past two decades, coronary artery disease remains a major cause of morbidity and mortality worldwide. We aimed to examine whether the direct transfer of STEMI patients to the cardiac catheterization laboratory (CCL) had a prognostic effect on in-hospital mortality in patients who underwent pPCI after STEMI. METHODS: The in-house mortality of STEMI patients who underwent pPCI was assessed at the Department of Cardiology, Harzklinik Goslar, Germany, between April 2013 and June 2017. RESULTS: We enrolled 312 STEMI patients, with a mean age of 67.1 +/- 13.4 years, of whom 211 (71%) were male. The all-cause in hospital mortality was 10% (n = 31 patients). A total of 298 (95%) patients were directly transferred to the CCL. while 14 patients (5%) with STEMI were not directly transferred to the CCL (tCCL) but were taken to the emergency department (tED). In the tCCL group, 18 patients (6%) died during the hospital stay, compared with 11 patients (79%) in the tED STEMI group; thus, the in-hospital mortality rate was significantly higher (p < 0.0001) in the tED group. CONCLUSION: Our monocentric cohort highlights and confirms the clinical importance of the direct transfer of patients with STEMI to the CCL. This approach is associated with a significant decrease in in-hospital mortality as compared with the tED approach. PMID- 29350254 TI - Sacubitril/valsartan for heart failure with reduced left ventricular ejection fraction : A retrospective cohort study. AB - BACKGROUND: The combination drug sacubitril/valsartan was reported to be superior to enalapril in reducing all-cause death, cardiovascular mortality, and heart failure (HF) hospitalizations in patients with cardiac insufficiency and reduced left ventricular ejection fraction (HFREF) with NYHA class II-IV. METHODS: Our retrospective cohort study aimed to assess the effects of sacubitril/valsartan in addition to a beta-blocker and mineral receptor antagonist (MRA) in a group of HFREF patients with NYHA class II-III HF vs. conventional therapy (ACE inhibitor or angiotensin II receptor blocker added to a beta-blocker plus an MRA) administered to a control group of HFREF patients with comparable clinical features. In both groups, treatment was supplemented by a loop diuretic, usually furosemide, at variable doses. The primary outcomes were all-cause death and HF hospitalizations. Safety outcomes were symptomatic hypotension, angioedema, hyperkalemia, and worsening renal function. RESULTS: Mortality at 6 months was 6.8% in patients taking sacubitril/valsartan vs. 34% in those on conventional therapy (odds ratio [OR] = 0.14; 95% CI: 0.04-0.49). Moreover, there was a 4.5% rate of HF hospitalizations in the sacubitril/valsartan group vs. 59% in the control group (OR = 0.03; 95% CI: 0.01-0.14). Safety outcomes were comparable in the two groups, although hypotension (systolic blood pressure < 100 mm Hg) was found in 15.9% of patients in the sacubitril/valsartan group vs. 5.7% in the control group (OR = 3.14; 95% CI: 0.94-10.55). CONCLUSION: Sacubitril/valsartan offered strong protection against all-cause death and HF hospitalizations at 6 months without any significant side effects. To validate this efficacious molecule, further postmarketing observational studies, focusing mainly on hypotension and angioedema are warranted. PMID- 29350255 TI - Nuclear magnetic resonance and high-performance liquid chromatography techniques for the characterization of bioactive compounds from Humulus lupulus L. (hop). AB - Humulus lupulus L. (hop) represents one of the most cultivated crops, it being a key ingredient in the brewing process. Many health-related properties have been described for hop extracts, making this plant gain more interest in the field of pharmaceutical and nutraceutical research. Among the analytical tools available for the phytochemical characterization of plant extracts, quantitative nuclear magnetic resonance (qNMR) represents a new and powerful technique. In this ambit, the present study was aimed at the development of a new, simple, and efficient qNMR method for the metabolite fingerprinting of bioactive compounds in hop cones, taking advantage of the novel ERETIC 2 tool. To the best of our knowledge, this is the first attempt to apply this method to complex matrices of natural origin, such as hop extracts. The qNMR method set up in this study was applied to the quantification of both prenylflavonoids and bitter acids in eight hop cultivars. The performance of this analytical method was compared with that of HPLC-UV/DAD, which represents the most frequently used technique in the field of natural product analysis. The quantitative data obtained for hop samples by means of the two aforementioned techniques highlighted that the amount of bioactive compounds was slightly higher when qNMR was applied, although the order of magnitude of the values was the same. The accuracy of qNMR was comparable to that of the chromatographic method, thus proving to be a reliable tool for the analysis of these secondary metabolites in hop extracts. Graphical abstract Graphical abstract related to the extraction and analytical methods applied in this work for the analysis of bioactive compounds in Humulus lupulus L. (hop) cones. PMID- 29350256 TI - Analysis of phenolic compounds in different parts of pomegranate (Punica granatum) fruit by HPLC-PDA-ESI/MS and evaluation of their antioxidant activity: application to different Italian varieties. AB - The analysis of pomegranate phenolic compounds belonging to different classes in different fruit parts was performed by high-performance liquid chromatography coupled with photodiode array and mass spectrometry detection. Two different separation methods were optimized for the analysis of anthocyanins and hydrolyzable tannins along with phenolic acids and flavonoids. Two C18 columns, core-shell and fully porous particle stationary phases, were used. The parameters for separation of phenolic compounds were optimized considering chromatographic resolution and analysis time. Thirty-five phenolic compounds were found, and 28 of them were tentatively identified as belonging to four different phenolic compound classes; namely, anthocyanins, phenolic acids, hydrolyzable tannins, and flavonoids. Quantitative analysis was performed with a mixture of nine phenolic compounds belonging to phenolic compound classes representative of pomegranate. The method was then fully validated in terms of retention time precision, expressed as the relative standard deviation, limit of detection, limit of quantification, and linearity range. Phenolic compounds were analyzed directly in pomegranate juice, and after solvent extraction with a mixture of water and methanol with a small percentage of acid in peel and pulp samples. The accuracy of the extraction method was also assessed, and satisfactory values were obtained. Finally, the method was used to study identified analytes in pomegranate juice, peel, and pulp of six different Italian varieties and one international variety. Differences in phenolic compound profiles among the different pomegranate parts were observed. Pomegranate peel samples showed a high concentration of phenolic compounds, ellagitannins being the most abundant ones, with respect to pulp and juice samples for each variety. With the same samples, total phenols and antioxidant activity were evaluated through colorimetric assays, and the results were correlated among them. PMID- 29350257 TI - A new approach for the extraction of tetracyclines from soil matrices: application of the microwave-extraction technique. AB - The widespread use of tetracyclines (TCs) in animal husbandry is associated with their constant penetration into the environment and the threat they might pose to living organisms. While the literature data on the analysis of these substances in such matrices as food, tissues, or wastewater are quite extensive, there are still only a few methods presented for the determination of these compounds in soil samples. Moreover, among the literature methods for the extraction of TCs from soil samples, microwave-assisted solvent extraction (MAE) was used only once and in combination with liquid chromatography with spectrophotometric detection (LC-UV). However, according to the EU Commission Decision 2002/657/EC, the use of LC-UV for the determination of compounds, including pharmaceuticals, in environmental samples is not sufficient. Therefore, the development and application of a sensitive and selective method using the MAE-SPE-LC-MS/MS(MRM) technique for the isolation and identification of a mixture of oxytetracycline (OTC), tetracycline (TC), and chlortetracycline (CTC) in soils is presented in our study. The credibility of this method has been confirmed with good parameters of validation. The optimal extraction conditions of three TCs using MAE techniques were to conduct double extraction for 10 min each, at 60 degrees C, using a mixture of ACN:McIlvaine buffer:0.1 M EDTA (2:1:1, v/v/v) and an additional cleaning of the extracts by SPE. The effectiveness of the extraction of these compounds was assessed based on two different ways (absolute recovery from 46 to 65.1% and relative recovery from 101.1 to 109.5%). Finally, the validated MAE-SPE-LC-MS/MS(MRM) method was used for the analysis of six samples from agricultural areas of northern Poland. OTC and TC, at concentrations of 11.7 and 14.5 MUg kg-1 were determined in two different samples. An assessment of risk quotients was also performed. The presented method was proven to be a useful tool in the analysis of residues of selected TCs in the soil ecosystem. Obtained data on the presence of these drugs in Polish soils is the first report for this country. PMID- 29350258 TI - Antitumor effects of radionuclide treatment using alpha-emitting meta-211At astato-benzylguanidine in a PC12 pheochromocytoma model. AB - PURPOSE: Therapeutic options for patients with malignant pheochromocytoma are currently limited, and therefore new treatment approaches are being sought. Targeted radionuclide therapy provides tumor-specific systemic treatments. The beta-emitting radiopharmaceutical meta-131I-iodo-benzylguanidine (131I-MIBG) provides limited survival benefits and has adverse effects. A new generation of radionuclides for therapy using alpha-particles including meta-211At-astato benzylguanidine (211At-MABG) are expected to have strong therapeutic effects with minimal side effects. However, this possibility has not been evaluated in an animal model of pheochromocytoma. We aimed to evaluate the therapeutic effects of the alpha-emitter 211At-MABG in a pheochromocytoma model. METHODS: We evaluated tumor volume-reducing effects of 211At-MABG using rat pheochromocytoma cell line PC12 tumor-bearing mice. PC12 tumor-bearing mice received intravenous injections of 211At-MABG (0.28, 0.56, 1.11, 1.85, 3.70 and 5.55 MBq; five mice per group). Tumor volumes were evaluated for 8 weeks after 211At-MABG administration. The control group of ten mice received phosphate-buffered saline. RESULTS: The 211At MABG-treated mice showed significantly lower relative tumor growth during the first 38 days than the control mice. The relative tumor volumes on day 21 were 509.2% +/- 169.1% in the control mice and 9.6% +/- 5.5% in the mice receiving 0.56 MBq (p < 0.01). In addition, the mice treated with 0.28, 0.56 and 1.11 MBq of 211At-MABG showed only a temporary weight reduction, with recovery in weight by day 10. CONCLUSION: 211At-MABG exhibited a strong tumor volume-reducing effect in a mouse model of pheochromocytoma without weight reduction. Therefore, 211At MABG might be an effective therapeutic agent for the treatment of malignant pheochromocytoma. PMID- 29350259 TI - Diminished expression of beta2-GPI is associated with a reduced ability to mitigate complement activation in anti-GPIIb/IIIa-mediated immune thrombocytopenia. AB - Anti-GPIIb/IIIa-mediated complement activation has been reported to be important in the pathogenesis of immune thrombocytopenia (ITP). However, the role of the complement system and the involved regulatory mechanism remain equivocal. Beta2 glycoprotein I (beta2-GPI), known as the main target for antiphospholipid autoantibodies, has been demonstrated as a complement regulator. Here, we investigated the complement-regulatory role of beta2-GPI in anti-GPIIb/IIIa mediated ITP. Plasma complement activation and enhanced complement activation capacity (CAC) were found in ITP patients with anti-GPIIb/IIIa antibodies in vivo and in vitro. Diminished plasma levels of beta2-GPI were shown in patients of this group, which was inversely correlated with C5b-9 deposition. C5b-9 generation was inhibited by approximate physiological concentrations of beta2 GPI, in a dose-dependent manner. Inhibition of C3a generation by beta2-GPI and the existence of beta2-GPI/C3 complexes in plasma indicated a regulation on the level of the C3 convertase. Furthermore, beta2-GPI down-regulated the phosphorylation levels of c-Jun N-terminal kinase (JNK) and cleavage of BH3 interacting domain death agonist (Bid) and ultimately harbored platelet lysis. Our findings may provide a novel link between diminished plasma levels of beta2 GPI and enhanced complement activation, indicating beta2-GPI as a potential diagnostic biomarker and therapeutic target in the treatment of anti-GPIIb/IIIa mediated ITP. PMID- 29350260 TI - Modulation rate transfer functions from four species of stranded odontocete (Stenella longirostris, Feresa attenuata, Globicephala melas, and Mesoplodon densirostris). AB - Odontocete marine mammals explore the environment by rapidly producing echolocation signals and receiving the corresponding echoes, which likewise return at very rapid rates. Thus, it is important that the auditory system has a high temporal resolution to effectively process and extract relevant information from click echoes. This study used auditory evoked potential methods to investigate auditory temporal resolution of individuals from four different odontocete species, including a spinner dolphin (Stenella longirostris), pygmy killer whale (Feresa attenuata), long-finned pilot whale (Globicephala melas), and Blainville's beaked whale (Mesoplodon densirostris). Each individual had previously stranded and was undergoing rehabilitation. Auditory Brainstem Responses (ABRs) were elicited via acoustic stimuli consisting of a train of broadband tone pulses presented at rates between 300 and 2000 Hz. Similar to other studied species, modulation rate transfer functions (MRTFs) of the studied individuals followed the shape of a low-pass filter, with the ability to process acoustic stimuli at presentation rates up to and exceeding 1250 Hz. Auditory integration times estimated from the bandwidths of the MRTFs ranged between 250 and 333 us. The results support the hypothesis that high temporal resolution is conserved throughout the diverse range of odontocete species. PMID- 29350261 TI - Publication rates of the abstracts presented at the annual meeting of International Society for Pediatric Neurosurgery. AB - INTRODUCTION: Publication of a study is the end point of the process to contribute to the literature and confirm the scientific value of the study. Publication rates of the abstracts presented at the annual meetings of neurosurgery have been studied, previously. However, publication rates of the abstracts presented at the annual meetings of pediatric neurosurgery have not been reported, yet. We evaluated abstracts presented at the 38th annual meeting of the International Society for Pediatric Neurosurgery (ISPN) held in South Korea, 2010. METHODS: We conducted this cross-sectional study by reviewing the abstracts presented at the annual meeting of the ISPN, 2010. Titles and authors of the abstracts were surveyed using Google Scholar and PubMed/MEDLINE. Time to publication, origin of the study, journal name in which the study has been accepted and published, and type of study has been analyzed for each abstract. RESULTS: The abstract booklet included 235 abstracts, consisted of 128 oral presentations (54%) and 107 electronic posters (46%). Fifty-nine (46%) of the oral presentations were published in a peer-reviewed journal. Laboratory studies were more likely to be published when compared to the clinical studies (72 vs. 39%). Thirty-two (30%) of the electronic posters were published in peer-reviewed journals. Most of the published abstracts were from Asia and Europe. Most of the abstracts were published in Child's Nervous System and Journal of Neurosurgery: Pediatrics. CONCLUSION: Publication rates of the abstracts presented at annual meeting of the ISPN were comparable to the other similar congresses. Oral presentations were more likely to be published. High publication rates of the abstracts presented at the annual meeting of the ISPN suggested that the meeting had a high scientific value. PMID- 29350262 TI - Vagal nerve stimulation for medically refractory epilepsy in Angelman syndrome: a series of three cases. AB - BACKGROUND: We describe three children with Angelman syndrome and medically refractory epilepsy. METHODS: Case series of three pediatric patients with Angelman syndrome and medically refractory epilepsy. All three patients failed medical treatment and were recommended for vagal nerve stimulator (VNS) implantation. RESULTS: Following VNS implantation, all three patients experienced reduction in seizure frequency greater than that afforded by medication alone. CONCLUSION: We present vagal nerve stimulator implantation as a viable treatment option for medically refractory epilepsy associated with Angelman syndrome. PMID- 29350263 TI - Histological findings after argon plasma coagulation: an ex-vivo study revealing a possible role in superficial ablative treatment of the skin. AB - Argon plasma coagulation (APC) is an electrosurgical technique which can be used to ablate skin lesions with limited invasion depth into dermal tissue. Hence, APC might be well suited for the removal of epithelial tumours. However, there are no data on the effects of APC on human skin tissue. Thus, the aim of this study was to determine the extent of epidermal and dermal damage after APC of human skin. We performed APC ex-vivo on 91 freshly resected human skin samples, which were obtained after reconstructive surgical closures in actinically damaged areas. Tissue effects were evaluated histologically and compared across different power settings. Using 15, 30, and 45 W, median (interquartile range; IQR) coagulation depths were 110.0 um (91.7-130.0), 113.3 um (85.8-135.0), and 130.0 um (100.0 153.3.0), respectively. Median (IQR) thickness of necrosis zone was 30.0 um (23.3 40.0) at 15 W, 26.7 um (20.0-41.6) at 30 W, and 43.3 um (30.8-57.5) at 45 W. The Kruskal-Wallis test showed significant differences between 15 and 30 W versus 45 W for coagulation depth (P = 0.0414), necrosis zone (P = 0.0017), and necrosis according to overlaying epidermal thickness (P = 0.0467). In summary, APC is a simple and controllable electrosurgical technique to remove epidermal tissue with limited penetration to the dermis. Thus, APC is particularly suited for the ablation of epithelial skin lesions and, therefore, may serve as possible treatment approach for intraepithelial neoplasms such as actinic keratosis. PMID- 29350265 TI - Effects of exercise-based interventions in severe mental illness: a feasibility study. PMID- 29350264 TI - Linking muscle metabolism and functional variation to field swimming performance in bluegill sunfish (Lepomis macrochirus). AB - Skeletal muscle has diverse mechanical roles during locomotion. In swimming fish, power-producing muscles work in concert with the accessory muscles of the fins which augment and control power transfer to the water. Although fin muscles represent a significant proportion of the locomotor muscle mass, their physiological properties are poorly characterized. To examine the relationship between muscle metabolism and the differing mechanical demands placed on distinct muscle groups, we quantified the aerobic and glycolytic capacities of the myotomal, pectoral and caudal muscles of bluegill sunfish. These were indicated by the activities of citrate synthase and lactate dehydrogenase, rate-limiting enzymes for aerobic respiration and glycolysis, respectively. The well established roles of slow and fast myotomal muscle types in sustained and transient propulsive movements allows their use as benchmarks to which other muscles can be compared to assess their function. Slow myotomal muscle had the highest CS activity, consistent with meeting the high metabolic and mechanical power demands of body-caudal fin (BCF) swimming at the upper end of the aerobically supported speed range. The largest pectoral adductors and abductors had CS activities lower than the slow myotomal muscle, in line with their role supplying thrust for low-speed, low-power swimming. The metabolic capacities of the caudal muscles were surprisingly low and inconsistent with their activity during steady-state BCF swimming at high speeds. This may reflect adaptation to the observed swimming behavior in the field, which typically involved short bouts of BCF-propulsive cycles rather than sustained propulsive activity. PMID- 29350266 TI - Normative measurements of inferior oblique muscle thickness in Japanese by magnetic resonance imaging using a new technique. AB - PURPOSE: To measure the thickness of the inferior oblique muscle (IOM) among Japanese by magnetic resonance imaging (MRI) using a new technique. METHODS: This retrospective observational study included 78 patients (36 males and 42 females) who underwent MRI for detection of a unilateral orbital lesion or examining causes of unilateral retrobulbar pain. The thickness of the IOM was measured on the side without the orbital lesion or symptom. On the quasi-sagittal plane through the optic nerve, the major and minor axes of the cross-section of the IOM were measured. On the coronal plane, the maximum thickness perpendicular to the course of the IOM was measured. All measurements were performed using the digital caliper tool of the viewing software. RESULTS: The major and minor axes on the quasi-sagittal plane and the maximum IOM thickness on the coronal plane were 8.00 +/- 1.83 mm, 2.98 +/- 0.55 mm, 3.04 +/- 0.55 mm respectively. There were no significant differences in IOM thickness measurements between sexes and sides (P > 0.050, Student's t-test). No significant correlation with the major axis (r = 0.064, P = 0.576), minor axis (r = -0.065, P = 0.573) or the maximum thickness on the coronal plane (r = -0.099, P = 0.387) was found in relation to age (Pearson's correlation coefficient). CONCLUSIONS: The normative IOM thickness in Japanese was presented on MRI, which were similar among all ages irrespective of sex and side. The new technique we used is easily applicable, and the results may serve as a guide to detect IOM involvement in inflammatory and neoplastic conditions of the orbit. PMID- 29350268 TI - The epitope-mediated MMP activation assay: detection and quantification of the activation of Mmp2 in vivo in the zebrafish embryo. AB - Matrix remodeling is a consequence of tightly regulated matrix metalloproteinase (MMP) activity. MMPs are synthesized as inactive precursors with auto-inhibitory N-terminal propeptides, the proteolytic removal of which exposes the catalytic zinc ion, rendering the protease active. The regulation of MMP activation has been investigated primarily in tissue culture and biochemical assays that lack important biological context. Here we present the epitope-mediated MMP activation (EMMA) assay and use it to observe the activation of Mmp2 (gelatinase A) by endogenous mechanisms in the intact zebrafish embryo. The hemagglutinin (HA) and GFP-tagged reporter construct becomes activated on the surface of specific cells and this activation is abolished by broad-spectrum inhibition of metalloproteinase activity, consistent with existing models of gelatinase A activation. The mechanism(s) acting on the construct are spatially restricted, metalloproteinase-dependent and replacing the HA tag with mCherry abolishes activation, showing that the mechanism(s) are sensitive to the structure of the N terminal domain. The construct is activated strongly in maturing myotome boundaries, but also intracellularly within myofibrils, consistent with reports implicating this protease in muscle development and function. In addition to general-purpose tools for the production of "EMMAed" MMPs and other proteins, we have established a transgenic line of zebrafish expressing EMMAedMmp2 under control of an inducible promoter to facilitate further investigation into the regulation of this ubiquitous ECM-remodeling protease in vivo. PMID- 29350270 TI - Genetic data for 26 autosomal STR markers from Brazilian population. AB - The allelic frequency distributions and statistical forensic parameters of 26 mini short tandem repeat (mini-STR) loci in a sample of 1575 unrelated individuals from five different Brazilian regions were obtained. All the analyzed loci showed great diversity and were highly informative. The results were compared with those of the US Caucasian, African American, and Hispanic population studies. This study aimed to contribute to forensic analysis for human identification and inference of the evidential value in familial bond tests. PMID- 29350269 TI - Exome analysis in 34 sudden unexplained death (SUD) victims mainly identified variants in channelopathy-associated genes. AB - Sudden cardiac death (SCD) is one of the major causes of mortality worldwide, mostly involving coronary artery disease in the elderly. In contrary, sudden death events in young victims often represent the first manifestation of undetected genetic cardiac diseases, which remained without any symptoms during lifetime. Approximately 30% of these sudden death cases have no definite cardiac etiology after a comprehensive medicolegal investigation and are therefore termed as sudden unexplained death (SUD) cases. Advances in high-throughput sequencing approaches have provided an efficient diagnostic tool to identify likely pathogenic variants in cardiovascular disease-associated genes in otherwise autopsy-negative SUD cases. The aim of this study was to genetically investigate a cohort of 34 unexplained death cases by focusing on candidate genes associated with cardiomyopathies and channelopathies. Exome analysis identified potentially disease-causing sequence alterations in 29.4% of the 34 SUD cases. Six (17.6%) individuals had variants with likely functional effects in the channelopathy associated genes AKAP9, KCNE5, RYR2, and SEMA3A. Interestingly, four of these six SUD individuals were younger than 18 years of age. Since the total SUD cohort of this study included five children and adolescents, post-mortem molecular autopsy screening indicates a high diagnostic yield within this age group. Molecular genetic testing represents a valuable approach to uncover the cause of death in some of the SUD victims; however, 70-80% of the cases still remain elusive, emphasizing the importance of additional research to better understand the pathological mechanisms leading to a sudden death event. PMID- 29350267 TI - Modern work-up and extended resection in perihilar cholangiocarcinoma: the AMC experience. AB - AIM: Perihilar cholangiocarcinoma (PHC) is a challenging disease and requires aggressive surgical treatment in order to achieve curation. The assessment and work-up of patients with presumed PHC is multidisciplinary, complex and requires extensive experience. The aim of this paper is to review current aspects of diagnosis, preoperative work-up and extended resection in patients with PHC from the perspective of our own institutional experience with this complex tumor. METHODS: We provided a review of applied modalities in the diagnosis and work-up of PHC according to current literature. All patients with presumed PHC in our center between 2000 and 2016 were identified and described. The types of resection, surgical techniques and outcomes were analyzed. RESULTS AND CONCLUSION: Upcoming diagnostic modalities such as Spyglass and combinations of serum biomarkers and molecular markers have potential to decrease the rate of misdiagnosis of benign, inflammatory disease. Assessment of liver function with hepatobiliary scintigraphy provides better information on the future remnant liver (FRL) than volume alone. The selective use of staging laparoscopy is advisable to avoid futile laparotomies. In patients requiring extended resection, selective preoperative biliary drainage is mandatory in cholangitis and when FRL is small (< 50%). Preoperative portal vein embolization (PVE) is used when FRL volume is less than 40% and optionally includes the left portal vein branches to segment 4. Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) as alternative to PVE is not recommended in PHC. N2 positive lymph nodes preclude long-term survival. The benefit of unconditional en bloc resection of the portal vein bifurcation is uncertain. Along these lines, an aggressive surgical approach encompassing extended liver resection including segment 1, regional lymphadenectomy and conditional portal venous resection translates into favorable long-term survival. PMID- 29350271 TI - Development of unstable hips after treatment with the Tubingen splint: mid-term follow-up of 83 hip joints. AB - INTRODUCTION: Early diagnosis and treatment of hip dysplasia are widely accepted as major factors for beneficial outcome. However, modalities for reduction and retention as well as for imaging are currently under clinical investigation. Local and general risk factors, e.g., breech presentation and the family's desire to avoid in-hospital treatment are major concerns in the decision-making process and consultation. For treatment of unstable hips in newborns the treatment with the Tubingen splint has proven good results in recent studies. However, mid- and long-term outcome studies are missing. We report on clinical results and X-ray parameter of initially unstable hips after treatment with the Tubingen splint at two time points: 12-24 and 24-48 months of age. MATERIALS AND METHODS: Included were newborns with 83 unstable hips (type D, III, IV according to Graf) which were successfully treated with the Tubingen splint-used as reduction splint 24 h per day/7 days per week-until type I hips were documented by ultrasound examination. Measurments are based on routine pelvic X-ray control at the age of 12-24 and 24-48 months. The acetabular angle was determined and according to the Tonnis-Classification evaluated into: normal findings (< 1 s), slightly dysplastic findings (1-2 s) and severely dysplastic findings (> 2 s). Children with secondary hip dysplasia were not included in this series. RESULTS: In 2nd year of life, 45 hips (54.2%; initial hip type D: 47.4%, III: 63.2%, IV: 42.9%) of the formerly unstable hips show normal X-ray findings. Although final ultrasound showed normal findings, at this time point 28 hips (33.7%; initial hip type D: 34.2%, III: 31.6%, IV: 42.9%) were slightly dysplastic and 10 (12.0%%; initial hip type D: 18.4%, III: 5.3%, IV: 14.3%) still severely dysplastic. At the age of 24-48 months, the percentage of radiologic normal hips had increased to 61 hips (73.5%; initial hip type D: 68.4%, III: 81.6%, IV: 57.1%), the number of slightly (19 hips) and severely dysplastic (3 hips) hips had decreased 22.9% (initial hip type D: 28.9%, III: 15.8%, IV: 28.6%) respectively 3.6% (initial hip type D: 2.6%, III: 2.6%, IV: 14.3%). At this time no operative intervention was neccessary. CONCLUSIONS: Our mid-term data show on the one hand a good development of unstable hips after successful treatment with the Tubingen splint. On the other hand despite successful therapy and normal ultrasound findings at the end of treatment further imaging by X-ray are mandatory to close follow-up and to detect those which might need surgical correction of residual dysplasia. PMID- 29350272 TI - Endoscopic endonasal approach for trigeminal schwannomas: our experience of 39 patients in 10 years. AB - BACKGROUND: The anatomical locations involved in trigeminal schwannomas (TSs) are quite complex. The endoscopic endonasal approach provides a minimal damage access corridor to both anterior and middle skull base for surgery. Given the nerve function recovery and postoperative neurological deterioration varied in different reports, the author demonstrates his surgery tips and the functional outcomes under endoscopic surgery in one single institution. METHODS: A retrospective review of patients with TSs was undertaken to assess the outcome of endoscopic surgery from 2006 to 2016. Clinical features, imaging findings, preoperative/postoperative neurological deficits, surgical approaches and followed up data were collected. RESULTS: Thirty-nine patients with TSs were included in this study. Surgical approaches include endoscopic medial maxillectomy approach (n = 8), endoscopic endonasal-assisted sublabial transmaxillary approach (n = 27) and endoscopic endonasal-assisted sublabial transmaxillary combined with septectomy (n = 4). Gross total resection and sub total resection were achieved in 27 and 10 patients, respectively. The most common chief complaint was facial numbness, accounting for 41%, with a resolved rate of 62.5% after treatment. Fifteen patients developed new neurologic symptoms, including facial numbness/pain (n = 9 and 2, respectively), dry eye (n = 3) and mastication weakness (n = 1). Eight of these patients had partial improvement except for patients with dry eye. CONCLUSION: Endoscopic endonasal approach represents a safe and effective surgical procedure for TSs in pterygopalatine fossa, infratemporal fossa and even Meckel cave. Tumor resection can be achieved by endoscope with few neurologic deficits and complications. PMID- 29350273 TI - In response to "Calculation of indirect costs of associated with postoperative caregiver absences after pediatric tonsil surgery". PMID- 29350275 TI - Value of transperineal ultrasound on the observation of paravaginal support. AB - OBJECTIVE: To explore the feasibility of three-dimensional (3D) transperineal ultrasound on the observation of paravaginal support in nulliparous and postpartum women. METHODS: Volume datasets were acquired in 50 nulliparous and 100 postpartum women using 3D transperineal ultrasound. Paravaginal supports were observed by studying the vaginal cross-sectional morphology. The extent of paravaginal support in specific level were evaluated by counting out at a 2 mm interval in tomographic ultrasound imaging mode in all subjects. The Mann-Whitney U test were applied to establish comparisons between the two groups. RESULTS: Three representative manifestations of vaginal cross-sectional morphology corresponding to different paravaginal support were presented from the dorsal side to the caudal side, both in nulliparous women and postpartum women. The extent of paravaginal support in middle vagina was 11 slices (range 9-12) in nulliparous women and 7 slices (range 4-10) in postpartum women (P < 0.05). CONCLUSION: This pilot study confirmed that it was feasible to indirectly study paravaginal support by observing the vaginal cross-sectional morphology using 3D transperineal ultrasound. PMID- 29350274 TI - T lymphocytes facilitate brain metastasis of breast cancer by inducing Guanylate Binding Protein 1 expression. AB - The discovery of genes and molecular pathways involved in the formation of brain metastasis would direct the development of therapeutic strategies to prevent this deadly complication of cancer. By comparing gene expression profiles of Estrogen Receptor negative (ER-) primary breast tumors between patients who developed metastasis to brain and to organs other than brain, we found that T lymphocytes promote the formation of brain metastases. To functionally test the ability of T cells to promote brain metastasis, we used an in vitro blood-brain barrier (BBB) model. By co-culturing T lymphocytes with breast cancer cells, we confirmed that T cells increase the ability of breast cancer cells to cross the BBB. Proteomics analysis of the tumor cells revealed Guanylate-Binding Protein 1 (GBP1) as a key T lymphocyte-induced protein that enables breast cancer cells to cross the BBB. The GBP1 gene appeared to be up-regulated in breast cancer of patients who developed brain metastasis. Silencing of GBP1 reduced the ability of breast cancer cells to cross the in vitro BBB model. In addition, the findings were confirmed in vivo in an immunocompetent syngeneic mouse model. Co-culturing of ErbB2 tumor cells with activated T cells induced a significant increase in Gbp1 expression by the cancer cells. Intracardial inoculation of the co-cultured tumor cells resulted in preferential seeding to brain. Moreover, intracerebral outgrowth of the tumor cells was demonstrated. The findings point to a role of T cells in the formation of brain metastases in ER- breast cancers, and provide potential targets for intervention to prevent the development of cerebral metastases. PMID- 29350276 TI - Effect of swimming exercise on premenstrual syndrome. AB - OBJECTIVE: To study the effectiveness of performing swimming on the severity of symptoms of premenstrual syndrome (PMS). MATERIALS AND METHODS: A randomized controlled trial that was conducted on 70 women diagnosed with PMS divided randomly into two equal groups: Group I included women who engaged into exercise and group II controls. Daily Symptoms Report was filled at the start and at end of the study. RESULTS: At the posttreatment evaluation, there was a highly significant difference between the study and control groups regarding anxiety (0 vs. 5), depression (3 vs. 12), tension (3 vs. 12), mood changes (0 vs. 7), feeling out of control (0 vs. 7), weak coordination (0 vs. 10), confusion (2 vs. 9), headache (3 vs. 15), tiredness (4 vs. 12), pains (5 vs. 11), tenderness of the breast (2 vs. 8), and cramps (6 vs. 17) (P < 0.001), but no such difference was found regarding irritability, insomnia, crying, swelling, or food craving. Regarding the percentage of symptoms changes, there was a highly significant difference between the study and control groups regarding anxiety (- 33.3 vs. 0), depression (- 79.29 vs. 15.56), tension (- 81.18 vs. - 6.79), mood changes (- 33.33 vs. 0), feeling out of control (- 91.67 vs. 0), weak coordination (- 100 vs. - 9.55), sleeplessness (- 71.43 vs. 0), confusion (- 84.17 vs. - 9.55), headache (- 77.78 vs. - 6.94), fatigue (- 65.69 vs. 0), pains (- 65.83 vs. - 8.93), breast tenderness (- 87.87 vs. 4.55), cramps (- 60.77 vs. 4.55), and swellings (- 55.05 vs. - 8.33), but no such difference was found regarding irritability, crying, or food craving. CONCLUSIONS: There is beneficial effect of swimming on most of the physical and psychological symptoms of PMS. CLINICAL TRIAL REGISTRY NO: NCT03264612. PMID- 29350278 TI - Lower body blood flow restriction training may induce remote muscle strength adaptations in an active unrestricted arm. AB - PURPOSE: We examined the concurrent characteristics of the remote development of strength and cross-sectional area (CSA) of upper body skeletal muscle in response to lower body resistance training performed with an applied blood flow restriction (BFR). METHODS: Males allocated to an experimental BFR group (EXP; n = 12) or a non-BFR control group (CON; n = 12) completed 7-weeks of resistance training comprising three sets of unilateral bicep curls [50% 1-repetition maximum (1-RM)], then four sets of bilateral knee extension and flexion exercises (30% 1-RM). EXP performed leg exercises with an applied BFR (60% limb occlusion pressure). 1-RM strength was measured using bilateral leg exercises and unilateral bicep curls in both trained and untrained arms. Muscle CSA was measured via peripheral quantitative computed tomography in the dominant leg and both arms. RESULTS: 1-RM in the trained arm increased more in EXP (2.5 +/- 0.4 kg; mean +/- SEM) than the contralateral untrained arm (0.8 +/- 0.4 kg), and the trained arm of CON (0.6 +/- 0.3 kg, P < 0.05). The increase in knee extension 1 RM was twofold that of CON (P < 0.01). Knee flexion 1-RM, leg CSA, and trained arm CSA increased similarly between groups (P > 0.05), while untrained arm CSA did not change (P > 0.05). CONCLUSION: Lower limb BFR training increased trained arm strength more than the contralateral untrained arm, and the trained arm of controls. However, there was no additional effect on muscle CSA. These findings support evidence for a BFR training-derived remote strength transfer that may be relevant to populations with localised movement disorders. PMID- 29350279 TI - Evaluation of the convergent validity of an estimated cardiorespiratory fitness algorithm. AB - PURPOSE: Examine the convergent validity of a cardiorespiratory fitness (CRF) algorithm when compared to treadmill-assessed CRF. METHODS: Data from the 1999 2004 NHANES were used (N = 3259 adults 20-49 years). Cardiorespiratory fitness was estimated from an algorithm. Participants completed a submaximal treadmill based protocol. We (1) evaluated the pairwise association (and ICC) between estimated and measured cardiorespiratory fitness, (2) employed a paired samples t test to examine potential mean differences between estimated and measured cardiorespiratory fitness, (3) constructed a Bland-Altman plot and 95% limits of agreement (LoA) to explore systematic differences and random error between estimated and measured cardiorespiratory fitness, and (4) examined the association (via linear regression) of estimated and measured cardiorespiratory fitness with chronic disease prevalence and C-reactive protein (CRP). RESULTS: Mean estimated CRF (10.68 METs) was lower than the mean measured CRF of 11.37 METs (p < 0.0001). The calculated pairwise correlation was of a moderate strength, r = 0.43 (p < 0.0001), with an ICC of 0.40 (p < 0.001). Calculated LoA indicated that estimated CRF may differ from measured CRF by 40% below to 48% above. Regression analyses yielded statistically significant inverse associations of estimated (unstandardized coefficient = - 0.026; p < 0.001) and measured (unstandardized coefficient = - 0.007; p = 0.002) CRF with chronic disease and estimated (unstandardized coefficient = - 0.08; p < 0.001) and measured (unstandardized coefficient = - 0.03; p < 0.001) CRF with CRP. CONCLUSION: Measured and estimated CRF were moderately correlated. However, estimated and measured CRF were statistically significant different from one another with noteworthy scatter around the average difference. As such, when feasible, objective measurements of CRF should be taken. PMID- 29350280 TI - Selective precipitation and characterization of lignin-carbohydrate complexes (LCCs) from Eucalyptus. AB - MAIN CONCLUSION: Six types of lignin-carbohydrate complex (LCC) fractions were isolated from Eucalyptus. The acidic dioxane treatment applied significantly improved the yield of LCCs. The extraction conditions had a limited impact on the LCC structures and linkages. Characterization of the lignin-carbohydrate complex (LCC) structures and linkages promises to offer insight on plant cell wall chemistry. In this case, Eucalyptus LCCs were extracted by aqueous dioxane, and then precipitated sequentially by 70% ethanol, 100% ethanol, and acidic water (pH = 2). The composition and structure of the six LCC fractions obtained by selective precipitation were investigated by sugar analysis, molecular weight determination, and 2D HSQC NMR. It was found that the acidic (0.05-M HCl) dioxane treatment significantly improved the yield of LCCs (66.4% based on Klason lignin), which was higher than the neutral aqueous dioxane extraction, and the extraction condition showed limited impact on the LCC structures and linkages. In the fractionation process, the low-molecular-weight LCCs containing a high content of carbohydrates (60.3-63.2%) were first precipitated by 70% ethanol from the extractable solution. The phenyl glycoside (PhGlc) bonds (13.0-17.0 per 100Ar) and highly acetylated xylans were observed in the fractions recovered by the precipitation with 100% ethanol. On the other hand, such xylan-rich LCCs exhibited the highest frequency of beta-O-4 linkages. The benzyl ether (BE) bonds were only detected in the fractions obtained by acidic water precipitation. PMID- 29350282 TI - Neutrophil chemotaxis. AB - Neutrophils are the primary cells recruited to inflamed sites during an innate immune response to tissue damage and/or infection. They are finely sensitive to inciting stimuli to reach in great numbers and within minutes areas of inflammation and tissue insult. For this effective response, they can detect extracellular chemical gradients and move towards higher concentrations, the so called chemotaxis process or guided cell migration. This directed neutrophil recruitment is orchestrated by chemoattractants, a chemically diverse group of molecular guidance cues (e.g., lipids, N-formylated peptides, complement, anaphylotoxins and chemokines). Neutrophils respond to these guidance signals in a hierarchical manner and, based on this concept, they can be further subdivided into two groups: "end target" and "intermediary" chemoattractants, the signals of the former dominant over the latter. Neutrophil chemoattractants exert their effects through interaction with heptahelical G protein-coupled receptors (GPCRs) expressed on cell surfaces and the chemotactic response is mainly regulated by the Rho family of GTPases. Additionally, neutrophil behavior might differ and be affected in different complex scenarios such as disease conditions and type of vascular bed in specific organs. Finally, there are different mechanisms to disrupt neutrophil chemotaxis either associated to the resolution of inflammation or to bacterial escape and systemic infection. Therefore, in the present review, we will discuss the different molecular players involved in neutrophil chemotaxis, paying special attention to the different chemoattractants described and the way that they interact intra- and extravascularly for neutrophils to properly reach the target tissue. PMID- 29350283 TI - Epigenetic regulation of neuroblastoma development. AB - In recent years, technological advances have enabled a detailed landscaping of the epigenome and the mechanisms of epigenetic regulation that drive normal cell function, development and cancer. Rather than merely a structural entity to support genome compaction, we now look at chromatin as a very dynamic and essential constellation that is actively participating in the tight orchestration of transcriptional regulation as well as DNA replication and repair. The unique feature of chromatin flexibility enabling fast switches towards more or less restricted epigenetic cellular states is, not surprisingly, intimately connected to cancer development and treatment resistance, and the central role of epigenetic alterations in cancer is illustrated by the finding that up to 50% of all mutations across cancer entities affect proteins controlling the chromatin status. We summarize recent insights into epigenetic rewiring underlying neuroblastoma (NB) tumor formation ranging from changes in DNA methylation patterns and mutations in epigenetic regulators to global effects on transcriptional regulatory circuits that involve key players in NB oncogenesis. Insights into the disruption of the homeostatic epigenetic balance contributing to developmental arrest of sympathetic progenitor cells and subsequent NB oncogenesis are rapidly growing and will be exploited towards the development of novel therapeutic strategies to increase current survival rates of patients with high-risk NB. PMID- 29350281 TI - An overview of methods/techniques for the detection of Cryptosporidium in food samples. AB - Cryptosporidium is one of the most important parasitic protozoa of concern within the food production industry, worldwide. This review describes the evolution and its development, and it monitors the methodology that has been used for Cryptosporidium in food material since 1984, when the first publication appeared regarding the detection of Cryptosporidium parvum in food materials. The methods that are currently being used for the detection of Cryptosporidium oocysts in food material (mainly vegetables) and all of the other available published methods are discussed in this review. Generating more consistent and reliable data should lead to a better understanding of the occurrence, transport and fate of the oocysts in food material. Improvements in monitoring and developing effective methodology, along with food security, offer more practical possibilities for both the developed and developing worlds. PMID- 29350284 TI - A positive relationship between spring temperature and productivity in 20 songbird species in the boreal zone. AB - Anthropogenic climate warming has already affected the population dynamics of numerous species and is predicted to do so also in the future. To predict the effects of climate change, it is important to know whether productivity is linked to temperature, and whether species' traits affect responses to climate change. To address these objectives, we analysed monitoring data from the Finnish constant effort site ringing scheme collected in 1987-2013 for 20 common songbird species together with climatic data. Warm spring temperature had a positive linear relationship with productivity across the community of 20 species independent of species' traits (realized thermal niche or migration behaviour), suggesting that even the warmest spring temperatures remained below the thermal optimum for reproduction, possibly due to our boreal study area being closer to the cold edge of all study species' distributions. The result also suggests a lack of mismatch between the timing of breeding and peak availability of invertebrate food of the study species. Productivity was positively related to annual growth rates in long-distance migrants, but not in short-distance migrants. Across the 27-year study period, temporal trends in productivity were mostly absent. The population sizes of species with colder thermal niches had decreasing trends, which were not related to temperature responses or temporal trends in productivity. The positive connection between spring temperature and productivity suggests that climate warming has potential to increase the productivity in bird species in the boreal zone, at least in the short term. PMID- 29350285 TI - Gut shuttle service: endozoochory of dispersal-limited soil fauna by gastropods. AB - Numerous important ecosystem functions and services depend on soil biodiversity. However, little is known about the mechanisms which maintain the vast belowground biodiversity and about the filters shaping soil community composition. Yet, biotic interactions like facilitation and dispersal by animals are assumed to play a crucial role, particularly as most soil animal taxa are strongly limited in their active dispersal abilities. Here, we report on a newfound interaction of potentially high ubiquity and importance in soil communities: the endozoochorous dispersal of soil fauna by gastropods. We focus on the dispersal-limited group of oribatid mites, one of the most diverse and abundant soil animal groups. In a field survey in a German riparian forest, 73% of 40 collected slugs (Arion vulgaris) egested a total of 135 oribatid mites, belonging to 35 species. Notably, 70% of the egested mites were alive and survived the gut passage through slugs. Similar results were found for Roman snails (Helix pomatia), indicating the generality of our findings across different gastropod taxa. Complementary laboratory experiments confirmed our field observations, revealing that oribatid mites are, indeed, ingested and egested alive by slugs, and that they are able to independently escape the faeces and colonise new habitats. Our results strongly indicate that gastropods may help soil organisms to disperse within habitats, to overcome dispersal barriers, and to reach short-lived resource patches. Gastropods might even disperse whole multi-trophic micro-ecosystems, a discovery that could have profound implications for our understanding of dispersal mechanisms and the distribution of soil biodiversity. PMID- 29350286 TI - Changes of FibroScan, APRI, and FIB-4 in chronic hepatitis B patients with significant liver histological changes receiving 3-year entecavir therapy. AB - Noninvasive fibrosis tests have been used widely for evaluation of liver fibrosis in patients with chronic hepatitis B (CHB). We aimed to investigate the influence of antiviral treatment on FibroScan, APRI, and FIB-4 in CHB patients with significant liver histological changes (SLHC) defined as inflammatory grade >= A2 and/or fibrosis stage >= F2. A total of 104 CHB patients with SLHC at the baseline were included. FibroScan, APRI, and FIB-4 values were compared before and after 3-year entecavir (ETV) treatment. Liver stiffness measurement values decreased significantly after 3-year ETV treatment in cirrhosis group (from 13.6 to 9.6 kPa, p = 0.018), significant fibrosis group (from 8.4 to 5.8 kPa, p = 0.001), and mild fibrosis group (from 5.5 to 4 kPa, p < 0.001). APRI decreased significantly after 3-year ETV treatment in patients with cirrhosis (from 0.80 to 0.25, p < 0.001), patients with significant fibrosis (from 0.54 to 0.24, p < 0.001), and those with mild fibrosis (from 0.35 to 0.23, p < 0.001). FIB-4 decreased significantly after 3-year ETV treatment in patients with cirrhosis (from 1.27 to 0.81, p = 0.007) and significant fibrosis (from 1.12 to 0.78, p < 0.001), while did not decrease significantly in patients with mild fibrosis (from 0.90 to 0.80, p = 0.389). FibroScan, APRI, and FIB-4 values decreased significantly after 3-year ETV treatment in CHB patients, which indicates that these noninvasive fibrosis tests might be useful for monitoring regression of liver fibrosis and assessing treatment efficacy during long-term ETV treatment. PMID- 29350288 TI - Correction to: Attenuation of cortical activity triggering descending pain inhibition in chronic low back pain patients: a functional magnetic resonance imaging study. AB - Inadvertently, the Fig. 7 was published incorrectly in the original publication of the article. The correct figure should be as below. PMID- 29350287 TI - Long non-coding RNA H19 promotes glucose metabolism and cell growth in malignant melanoma via miR-106a-5p/E2F3 axis. AB - PURPOSE: lncRNA H19 has been considered as an oncogenic lncRNA in many human tumours. In the present study, we identify the role and molecular mechanism of lncRNA H19 in melanoma. METHOD: QRT-PCR was used to detect the expression of lncRNA H19 and E2F3 was detected in melanoma tissues. Cell counting kit-8 (CCK8), representative metabolites analysis was used to explore the biological function of lncRNA H19, miR-106a-5p and E2F3 in melanoma cells. Bioinformatics, luciferase reporter assays, MS2-RIP and RNA pull-down assay was used to demonstrate the molecular mechanism of lncRNA H19 in melanoma. We further test the function of lncRNA H19 in vivo though Xenograft tumour assay. RESULTS: We found that lncRNA H19 was increased in melanoma tissue, and lncRNA H19 was correlated with poor prognosis of melanoma patients. miR-106a-5p acts as a tumour suppressor in melanoma by targeting E2F3. E2F3 affects the melanoma cell glucose metabolism and growth. We also demonstrated that lncRNA H19 may function as the sponge of miR 106a-5p to up-regulate E2F3 expression, and consequently promote the glucose metabolism and growth of melanoma. CONCLUSIONS: This result elucidates a new mechanism for lncRNA H19 in melanoma development and provides a survival indicator and potential therapeutic target for melanoma patients. PMID- 29350289 TI - Small RNA pathways responsible for non-cell-autonomous regulation of plant reproduction. AB - In angiosperms, germline precursors and germ cells are always attached to or engulfed within somatic companion cells until just before fertilization. This is because sperm and egg cells develop as part of the multicellular gametophyte. Thus, the non-cell-autonomous regulation by somatic companions plays important roles in efficient reproduction, in addition to the cell-autonomous regulation. Epigenetic silencing of transposable elements is one of the central events by which the germline transmits the error-free genome to the next generation. This review focuses on small RNA-mediated epigenetic regulation of meiosis, spore formation and pollen development. Besides microRNA (miRNA) and small interfering RNA (siRNA), animals express PIWI-interacting RNA (piRNA), a germline-specific class of small RNAs. Plants lack piRNA-like RNAs and, instead, express unique classes of small RNAs: trans-acting siRNA (tasiRNA) and phased secondary siRNA (phasiRNA). Especially in grass species, 21- and 24-nucleotide phasiRNAs are abundant in anthers during premeiosis and meiosis. This review also describes recent progress in reproductive phasiRNA research. PMID- 29350291 TI - Decompressive surgery for lumbar spinal stenosis across the Atlantic: a comparison of preoperative MRI between matched cohorts from the US and Norway. AB - BACKGROUND: There are no uniform guidelines regarding when to operate for Lumbar Spinal Stenosis (LSS). As we apply findings from clinical research from one population to the next, elucidating similarities or differences provides important context for the validity of extrapolating clinical outcomes. The aim of this study was to compare the morphological severity of lumbar spinal stenosis on preoperative MRI in patients undergoing decompressive surgery in Boston, USA, and Trondheim, Norway. METHODS: In this observational retrospective study, we compared morphological severity on MRI before surgical treatment between two propensity score-matched patient populations with single or two-level symptomatic LSS. We assessed the radiographic severity of LSS utilizing the Schizas classification (grade A to D). RESULTS: Following propensity score matching, demographics are balanced. In the Trondheim cohort, two levels decompression were present in 36.2% of the patients vs. 41.9% in Boston, (p = 0.396). There was no significant difference in grades A to D concerning central stenosis (p = 0.075). When dichotomized in mild/moderate (A/B) and severe /extreme (C/D), there were no significant differences in the rate of levels operated for high-grade stenosis (C/D), 67.6% in the Boston group compare to 78.1% in the Trondheim group (p = 0.088). CONCLUSIONS: Trondheim, Norway, and Boston, US, have similar radiographic thresholds of LSS for offering surgery. PMID- 29350292 TI - Disc herniation, occult on preoperative imaging but visualized microsurgically, as the cause of idiopathic thoracic spinal cord herniation. AB - Idiopathic spinal cord herniation (ISCH) through an anterior dural defect is rare and the cause is uncertain. Recently, through interpreting imaging studies, disc herniation was proposed to be a major cause for ISCH. We describe the case of a 50-year-old woman with progressive myelopathy who was diagnosed with a thoracic spinal cord herniation. Microsurgical exploration revealed an anterior vertical dural defect and a small concomitant disc herniation, occult on the preoperative imaging, which caused the dural defect and led to ISCH. This intraoperative finding corroborates the emerging notion that disc herniation is the underlying cause of ISCH. PMID- 29350290 TI - The microbiology and treatment of human mastitis. AB - Mastitis, which is generally described as an inflammation of breast tissue, is a common and debilitating disease which frequently results in the cessation of exclusive breastfeeding and affects up to 33% of lactating women. The condition is a primary cause of decreased milk production and results in organoleptic and nutritional alterations in milk quality. Recent studies employing culture independent techniques, including metagenomic sequencing, have revealed a loss of bacterial diversity in the microbiome of mastitic milk samples compared to healthy milk samples. In those infected, the pathogens Staphylococcus aureus, Staphylococcus epidermidis and members of corynebacteria have been identified as the predominant etiological agents in acute, subacute and granulomatous mastitis, respectively. The increased incidence of antibiotic resistance in the causative species is also a key cause of concern for treatment of the disease, thus leading to the need to develop novel therapies. In this respect, probiotics and bacteriocins have revealed potential as alternative treatments. PMID- 29350294 TI - Biocatalysis of aromatic benzyl-propionate ester by different immobilized lipases. AB - Benzyl propionate is an aromatic ester that possesses a fruity odor and is usually found in nature in the composition of some fruits such as plums and melons. This work aimed for the benzyl propionate synthesis by esterification using a new immobilized enzyme preparation with low-cost material from Candida antarctica (NS 88011) and three commercial immobilized lipases (Novozym 435, Lipozyme TL-IM and Lipozyme RM-IM). Novozym 435 had the best performance even when the solvent tert-butanol was absent of the reaction medium. Results from a 22 factorial design showed that an increase in the enzyme amount led to a higher conversion, even when the temperature was kept at the low value. Currently, no research had synthesized successfully benzyl propionate via esterification mediated by lipases; and we reached an ester conversion of ~ 44% after 24 h indicating that it is a promising route for benzyl propionate biotechnological production. PMID- 29350293 TI - Diversity and enzymatic potentialities of Bacillus sp. strains isolated from a polluted freshwater ecosystem in Cuba. AB - Genotypic and phenotypic characterization of Bacillus spp. from polluted freshwater has been poorly addressed. The objective of this research was to determine the diversity and enzymatic potentialities of Bacillus spp. strains isolated from the Almendares River. Bacilli strains from a polluted river were characterized by considering the production of extracellular enzymes using API ZYM. 14 strains were selected and identified using 16S rRNA, gyrB and aroE genes. Genotypic diversity of the Bacillus spp. strains was evaluated using pulsed field gel electrophoresis. Furthermore, the presence of genetic determinants of potential virulence toxins of the Bacillus cereus group and proteinaceous crystal inclusions of Bacillus thuringiensis was determined. 10 strains were identified as B. thuringiensis, two as Bacillus megaterium, one as Bacillus pumilus and one as Bacillus subtilis. Most strains produced proteases, amylases, phosphatases, esterases, aminopeptidases and glucanases, which reflect the abundance of biopolymeric matter in Almendares River. Comparison of the typing results revealed a spatio-temporal distribution among B. thuringiensis strains along the river. The results of the present study highlight the genotypic and phenotypic diversity of Bacillus spp. strains from a polluted river, which contributes to the knowledge of genetic diversity of Bacilli from tropical polluted freshwater ecosystems. PMID- 29350295 TI - EMS-induced mutation followed by quizalofop-screening increased lipid productivity in Chlorella sp. AB - The objective of this study was to enhance biomass and lipid productivity in Chlorella sp. isolate 6-4 by inducing mutagenesis with two growth inhibitors: the herbicide quizalofop-P-ethyl, a known inhibitor of acetyl-CoA carboxylase (ACCase) activity, and chemical mutagen, ethyl methanesulfonate (EMS), at different concentrations and length of times. The induced-mutagenized microalgae were screened on selective medium containing 10-100 uM quizalofop. The biomass yield, biomass productivity, lipid content, and lipid productivity of mutagenized microalgae were determined. The result showed that 100-200 mM EMS concentrations and 30 min incubation time were the most effective. Biomass yield and biomass productivity of the mutagenized microalgae E50-30-40, E100-60-40, and E100-30-60 were statistically significant higher than those of the wild type. The mutagenized microalgae E100-30-60 showed that the highest biomass yield and biomass productivity were 111 and 110% higher than the wild type, respectively (p < 0.01). Lipid content and lipid productivity of the mutagenized microalgae E200 30-40 were 59 and 53% significantly higher than the wild type, respectively. It should be noted that biomass productivity of the mutagenized microalgae E200-30 40 was not significantly different from E100-30-60, meaning that this microalga strain exhibited highest both biomass and lipid productivity. These results indicated that inducing mutagenesis by EMS subsequently screening by herbicide could lead to enhance biomass and lipid accumulation. Therefore, this methodology could be used for improvement microalgae for biofuel production. PMID- 29350296 TI - Use of Biotechnological Devices in the Quantification of Psychophysiological Workload of Professional Chess Players. AB - Psychophysiological requirements of chess players are poorly understood, and periodization of training is often made without any empirical basis. For this reason, the aim of the present study was to investigate the psychophysiological response and quantify the player internal load during, and after playing a chess game. The participant was an elite 33 year-old male chess player ranked among the 300 best chess players in the world. Thus, cortical arousal by critical flicker fusion threshold, electroencephalogram by the theta Fz/alpha Pz ratio and autonomic modulation by heart rate variability were analyzed. Data revealed that cortical arousal by critical flicker fusion threshold and theta Fz/alpha Pz ratio increased and heart rate variability decreased during chess game. All these changes indicated that internal load increased during the chess game. In addition, pre-activation was detected in pre-game measure, suggesting that the prefrontal cortex might be preparatory activated. For these reasons, electroencephalogram, critical flicker fusion threshold and heart rate variability analysis may be highly applicable tools to control and monitor workload in chess player. PMID- 29350297 TI - Microbial communities and their predicted metabolic functions in a desiccating acid salt lake. AB - The waters of Lake Magic in Western Australia are among the most geochemically extreme on Earth. This ephemeral saline lake is characterized by pH as low as 1.6 salinity as high as 32% total dissolved solids, and unusually complex geochemistry, including extremely high concentrations of aluminum, silica, and iron. We examined the microbial composition and putative function in this extreme acid brine environment by analyzing lake water, groundwater, and sediment samples collected during the austral summer near peak evapoconcentration. Our results reveal that the lake water metagenome, surprisingly, was comprised of mostly eukaryote sequences, particularly fungi and to a lesser extent, green algae. Groundwater and sediment samples were dominated by acidophilic Firmicutes, with eukaryotic community members only detected at low abundances. The lake water bacterial community was less diverse than that in groundwater and sediment, and was overwhelmingly represented by a single OTU affiliated with Salinisphaera. Pathways associated with halotolerance were found in the metagenomes, as were genes associated with biosynthesis of protective carotenoids. During periods of complete desiccation of the lake, we hypothesize that dormancy and entrapment in fluid inclusions in halite crystals may increase long-term survival, leading to the resilience of complex eukaryotes in this extreme environment. PMID- 29350298 TI - Contribution of Mossbauer spectroscopy to the investigation of Fe/S biogenesis. AB - Fe/S cluster biogenesis involves a complex machinery comprising several mitochondrial and cytosolic proteins. Fe/S cluster biosynthesis is closely intertwined with iron trafficking in the cell. Defects in Fe/S cluster elaboration result in severe diseases such as Friedreich ataxia. Deciphering this machinery is a challenge for the scientific community. Because iron is a key player, 57Fe-Mossbauer spectroscopy is especially appropriate for the characterization of Fe species and monitoring the iron distribution. This minireview intends to illustrate how Mossbauer spectroscopy contributes to unravel steps in Fe/S cluster biogenesis. Studies were performed on isolated proteins that may be present in multiple protein complexes. Since a few decades, Mossbauer spectroscopy was also performed on whole cells or on isolated compartments such as mitochondria and vacuoles, affording an overview of the iron trafficking. This minireview aims at presenting selected applications of 57Fe Mossbauer spectroscopy to Fe/S cluster biogenesis. PMID- 29350299 TI - Mutagenicity, cytotoxic and antioxidant activities of Ricinus communis different parts. AB - Ricinus communis (castor plant) is a potent medicinal plant, which is commonly used in the treatment of various ailments. The present study was conducted to appraise the cytotoxicity and mutagenicity of R. communis along with antioxidant and antimicrobial activities. Cytotoxicity was evaluated by hemolytic and brine shrimp assays, whereas Ames test (TA98 and TA100) was used for mutagenicity evaluation. Plant different parts were extracted in methanol by shaking, sonication and Soxhlet extraction methods. The R. communis methanolic extracts showed promising antioxidant activity evaluated as through total phenolic contents (TPC), total flavonoid content (TFC), DPPH free radical inhibition, reducing power and inhibition of linoleic acid oxidation. R. communis seeds, stem, leaves, fruit and root methanolic extracts showed mild to moderate cytotoxicity against red blood cells (RBCs) of human and bovine. Brine shrimp lethality also revealed the cytotoxic nature of extracts with LC50 in the range of 0.22-3.70 (ug/mL) (shaking), 1.59-60.92 (ug/mL) (sonication) and 0.72-33.60 (ug/mL) (Soxhlet), whereas LC90 values were in the range of 345.42-1695.81, 660.50-14,794.40 and 641.62-15,047.80 ug/mL for shaking, sonication and Soxhlet extraction methods, respectively. R. communis methanolic extracts revealed mild mutagenicity against TA98 (range 1975 +/- 67 to 2628 +/- 79 revertant colonies) and TA100 (range 2773 +/- 92 to 3461 +/- 147 revertant colonies) strains and these values were 3267 +/- 278 and 4720 +/- 346 revertant colonies in case of TA98 and TA100 positive controls, respectively. R. communis methanolic extracts prevented the H2O2 and UV to Plasmid pBR322 DNA oxidative damage. Results revealed that R. communis is a potential source of bioactive compounds and in future studies the bioactive compounds will be identified by advanced spectroscopic techniques. PMID- 29350300 TI - The relationship between gait variability and cognitive functions differs between fallers and non-fallers in MS. AB - The objective of the study was to determine if cognitive function is associated with step time variability in people with multiple sclerosis (PwMS). The study included 355 PwMS (218 women), average age 41.1 (SD = 13.5), disease duration 5.9 (SD = 7.3) years, and a median expanded disability status scale score of 2.5. We separately analyzed the sample group of fallers and non-fallers based on their fall history. Gait variability was measured by an electronic walkway and all participants completed a computerized cognitive test battery designed to evaluate multiple cognitive domains. Fallers (43.7%) demonstrated elevated step time variability (%CV), 5.0 (SD = 3.4) vs. 3.5 (SD = 1.6), P < 0.001 compared to the non-faller subjects. According to the regression analysis in the non-fallers' group, step time variability was found significantly associated with the global cognitive score (P = 0.001), executive function subcategory (P = 0.038), and motor skills subcategory (P < 0.001). No relationship between step time variability and any cognitive domain was demonstrated in the faller group. This study illustrated that the association between gait variability and cognition occurs only in PwMS without a fall history. From a clinical standpoint, these findings might help medical professionals to create improved assessment tests and rehabilitation strategies in the MS population. PMID- 29350301 TI - Constipation in Parkinson's Disease: a Nuisance or Nuanced Answer to the Pathophysiological Puzzle? AB - PURPOSE OF REVIEW: Chronic constipation is a common, nonmotor, and prodromal symptom in Parkinson's disease (PD). Its underlying neuropathology may provide pathophysiological insight into PD. Here, we critically review what is currently known about the neuroanatomical and brain-gut interactions, and the origin and progression of Lewy pathology (LP) at three levels-brain/brainstem, spinal cord, and enteric nervous system. RECENT FINDINGS: Many recent studies have illustrated the challenges of examining LP in tissues obtained from colon biopsies of PD patients. Large-scale epidemiological studies have not confirmed the widely accepted Braakpostula. In this review, we propose an alternative origin and route of spread of LP in PD. We describe novel, noninvasive neurophysiological testing that could advance the understanding of LP and complex bidirectional brain-pelvic floor neural pathways in PD-a true disease model of a neurogastrointestinal disorder. This review may provide the impetus for future studies investigating gut and brain interaction and constipation in PD. PMID- 29350302 TI - Antifungal mechanism of sodium dehydroacetate against Geotrichum citri-aurantii. AB - This study investigated the potential anti-fungal mechanisms of sodium dehydroacetate (SD) against Geotrichum citri-aurantii. The results showed that the cell wall integrity of G. citri-aurantii was not affected, whereas the membrane permeability of G. citri-aurantii mycelia was visibly altered by SD. Dramatic morphological changes of the mycelia, such as loss of cytoplasm, plasmolysis, and dissolution of intracellular substances, were observed by scanning electron microscopy and transmission electron microscopy analyses, indicating that the mycelium is severely damaged by the SD treatment. Furthermore, SD apparently induced a decrease in the intracellular ATP content before 30 min of exposure. An increase in the activity of the Na+/K+-ATPase was also observed, indicating that Na+ ions might enter the cell and thus disturb the energy supply. Taken together, this study's findings suggest that the anti-fungal activity of SD against G. citri-aurantii can be attributed to the disruption of cell membrane permeability and energy metabolism. PMID- 29350303 TI - A Short Review of the Non-invasive Transcutaneous Pericranial Electrical Stimulation Techniques and their Application in Headache. AB - PURPOSE OF REVIEW: In this short review, the most common non-invasive neuromodulatory techniques will be described, along with their advantages and disadvantages and their application in headache. Available preventive treatments can be unhelpful or may have unpleasant side effects; moreover, the rate of response to preventive drugs does not exceed 50%, lower in chronic migraine; alternative options would be welcome. Though the concept of neuromodulation was originally developed with invasive methods, newer non-invasive techniques are appearing. RECENT FINDINGS: The novel neuromodulatory techniques have been developed with encouraging results: compared with traditional pharmacotherapy, advantages of non-invasive neuromodulation include reduced incidence of adverse effects, improved adherence, and safety and ease of use. The results are encouraging for acute or preventive treatment of different kinds of headache. A variety of neuromodulatory approaches is expanding fastly and has opened new possibilities for treatment of patients suffering from many forms of headache, especially those who have failed traditional pharmacotherapy. The non-invasive treatments can be seen as supplementing traditional management in refractory patients. Current study results are encouraging but preliminary and larger and more rigorous trials are needed to clarify benefit and mode of action. PMID- 29350304 TI - Defective mitochondrial ATPase due to rare mtDNA m.8969G>A mutation-causing lactic acidosis, intellectual disability, and poor growth. AB - Mutations in mitochondrial ATP synthase 6 (MT-ATP6) are a frequent cause of NARP (neurogenic muscle weakness, ataxia, and retinitis pigmentosa) or Leigh syndromes, especially a point mutation at nucleotide position 8993. M.8969G>A is a rare MT-ATP6 mutation, previously reported only in three individuals, causing multisystem disorders with mitochondrial myopathy, lactic acidosis, and sideroblastic anemia or IgA nephropathy. We present two siblings with the m.8969G>A mutation and a novel, substantially milder phenotype with lactic acidosis, poor growth, and intellectual disability. Our findings expand the phenotypic spectrum and show that mtDNA mutations should be taken account also with milder, stable phenotypes. PMID- 29350305 TI - Percutaneous Mechanical Circulatory Support Devices for High-Risk Percutaneous Coronary Intervention. AB - PURPOSE OF REVIEW: Percutaneous mechanical circulatory support devices (PMCSD) consist of the intra-aortic balloon pump (IABP), Impella (Abiomed Inc., Danvers, Massachusetts), Tandem Heart (Cardiac Assist, Inc., Pittsburgh, Pennsylvania), or extracorporeal membranous oxygenation (ECMO). They augment cardiac output, cardiac index, and cardiac power which allow the operator to mitigate hemodynamic perturbations during high-risk percutaneous coronary intervention (HR-PCI). This review discusses PMCSD and their contemporary literature. RECENT FINDINGS: Recent literature has substantiated the hemodynamic benefits of PMCSD in HR-PCI and cardiogenic shock, but no mortality benefit was found. As stent technology improves, PCI is expanding into high-risk cases in which PMCSD provide hemodynamic support allowing safe and complete revascularization. PMID- 29350306 TI - Progress on the study of the mechanism of busulfan cytotoxicity. AB - The preparation of spermatogonial stem cell (SSC) transplant recipients laid the technical foundation for SSC transplant technology and the understanding of spermatogenesis mechanisms. Busulfan is commonly used to prepare recipients for mouse SSC transplantation; however, its safety and efficiency have been questioned. This review summarizes the relationship between SSCs and Sertoli cells (SCs), and the mechanism of busulfan toxicity against sperm cells. We concluded that the proliferation, differentiation, and apoptosis of SSCs are regulated by SCs. The endogenous spermatogenic cells are depleted by busulfan treatment via alkylation of DNA, destruction of vimentin filament distribution, disruption of SSC differentiation, promotion of SSC dormancy, and generation of oxidative stress. However, the mechanisms require further exploration. The recent establishment of a model in vitro culture system has provided a good technical foundation to further explore these mechanisms, which will help us to find more efficient methods of recipient preparation and optimal transplantation times. PMID- 29350307 TI - Living with chronic pain: perceptions of breast cancer survivors. AB - PURPOSE: Breast cancer treatments may lead to chronic pain. For some breast cancer survivors (BCS), this experience can develop into the perception of living with chronic pain. The majority of BCS are postmenopausal and have hormone receptor-positive (HR+) breast cancer requiring aromatase inhibitors (AIs). Neither the prevalence nor risk factors associated with the perception of living with chronic pain among this population are well defined. METHODS: We conducted a cross-sectional survey among postmenopausal, HR+ BCS who previously took or were currently taking AIs. The primary outcome was patients' perception of living with chronic pain over the past 6 months. We measured pain and demographic and clinical variables. Multivariable logistic regression analysis was performed to evaluate risk factors associated with the perception of chronic pain. RESULTS: Among 1280 participants, 167 (13%) reported having the perception of living with chronic pain before their breast cancer diagnosis; 426 (34%) reported this perception after completion of non-hormonal cancer treatment. Seventy-eight percent of BCSs reported experiencing at least one type of treatment-related pain within the past 7 days, with 23% experiencing at least three types. The most common types of pain were AI-induced musculoskeletal pain (49%) and pain at the surgery or radiation site (31%). Younger age (< 56), BMI > 25, and the perception of living with chronic pain before diagnosis were risk factors associated with the perception of living with chronic pain. CONCLUSIONS: One in three postmenopausal, HR+ BCS considered themselves to be living with chronic pain. Effective interventions to reduce chronic pain are needed. PMID- 29350309 TI - Population Genetics of the Endangered and Wild Edible Plant Ottelia acuminata in Southwestern China Using Novel SSR Markers. AB - Ottelia acuminata is an edible aquatic plant species that is endemic to southwestern China. This plant has experienced habitat degradation resulting from environmental change and extensive human disturbance. Determining the genetic variation and genetic structure of O. acuminata populations could help develop strategies to collect, evaluate, utilize and conserve the species. To this end, we genotyped 183 individuals sampled throughout the species distribution using twelve novel nuclear microsatellite loci (nSSRs). Eight of these nSSRs exhibited low average levels of genetic diversity (HE = 0.351, Ho = 0.376) and showed evidence of significant inbreeding across several populations. A high degree of genetic differentiation was identified among populations (FST = 0.457), probably resulting from limited pollen and seed-mediated gene flow. Only 17.8% of variation existed between O. acuminata var. acuminata and other O. acuminata varieties. Bayesian analysis and a UPGMA dendrogram based on Nei's genetic distance also revealed notably low genetic differentiation among the varieties. This low genetic differentiation is possibly attributed to shared ancestral polymorphisms since their divergence. Additional taxonomic and phylogenetic studies with additional molecular markers are needed to determine the population genetic relationship between O. acuminata varieties. Conservation of this species depends on in situ and ex situ actions, such as controlling habitat water pollution and overexploitation and creating a germplasm bank based on the population genetic differences. To the best of our knowledge, this study represents the first attempt to understand the population genetics of O. acuminata in China using novel nSSR markers developed from transcriptome sequencing and could contribute to the conservation management of this economic plant. PMID- 29350308 TI - The PPARgamma agonist efatutazone delays invasive progression and induces differentiation of ductal carcinoma in situ. AB - PURPOSE: Ductal carcinoma in situ (DCIS) is a pre-invasive lesion of the breast considered a precursor of invasive ductal carcinoma. This study aimed to determine whether activated PPARgamma acts as a tumor suppressor in human DCIS progression. METHODS: We utilized the high-affinity PPARgamma agonist, efatutazone, to activate endogenous PPARgamma in a well-defined model for the progression of basal (triple negative) DCIS, MCFDCIS cells, cultured under 2D and 3D conditions. We studied the effects of activated PPARgamma on DCIS progression in MCFDCIS xenograft and C3(1)/Tag transgenic mice treated with 30 mg/kg of efatutazone. RESULTS: In vitro, efatutazone did not alter the MCFDCIS cell proliferation but induced phenotypic and gene expression changes, indicating that activated PPARgamma is able to differentiate MCFDCIS cells into more luminal and lactational-like cells. In addition, MCFDCIS tumorsphere formation in 3D was reduced by PPARgamma activation. In vivo, efatutazone-treated MCFDCIS tumors exhibited fat deposition along with upregulation of PPARgamma responsive genes in both epithelial and stromal compartments, suggesting features of milk-producing mammary epithelial cell differentiation. The efatutazone-treated lesions were less invasive with fewer CD44+/p63+ basal progenitor cells. PPARgamma activation downregulated Akt phosphorylation in these tumors, although the ERK pathway remained unchanged. Similar trends in gene expression changes consistent with lactational and luminal cell differentiation were observed in the C3(1)/Tag mouse model after efatutazone treatment. CONCLUSIONS: Our data suggest that activation of the PPARgamma pathway differentiates DCIS lesions and may be a useful approach to delay DCIS progression. PMID- 29350310 TI - Proanthocyanidins and the risk of prostate cancer in Italy. AB - Proanthocyanidins are polymers of monomeric unit flavan-3-ols with antioxidant, anti-inflammatory and free radical scavenging activities. We investigated the association between proanthocyanidin intake and prostate cancer risk through data that were collected between 1991 and 2002 in an Italian case-control study, including a total of 1,294 incident, histologically confirmed cases of prostate cancer and 1,451 controls admitted to hospital for acute, non-neoplastic, and non hormone-related diseases. We estimated odds ratios (ORs) and their 95% confidence intervals (CIs) using multiple logistic regression models, and computed energy adjusted proanthocyanidin intakes using the residual method. The ORs for the highest versus the lowest tertile were 0.80 (95% CI 0.83-1.00) for energy adjusted monomers and dimers combined, 0.72 (95% CI 0.59-0.87) for polymers with >= 3 mers, and 0.72 (95% CI 0.59-0.88) for total proanthocyanidins. The inverse relation was stronger among cases with a Gleason score >= 7, with the ORs of 0.56 (95% CI 0.40-0.78) for monomers and dimers, 0.62 (95% CI 0.40-0.78) for polymers with >= 3 mers, and 0.57 (95% CI 0.42-0.77) for total proanthocyanidins. These risk estimates were consistent across strata of age, education, body mass index, and family history of prostate cancer. Our data indicate an inverse association between proanthocyanidins and prostate cancer risk. PMID- 29350311 TI - Shear wave elastography and AfirmaTM gene expression classifier in thyroid nodules with indeterminate cytology: a comparison study. AB - PURPOSE: To compare shear wave elastography (SWE) and AfirmaTM gene expression classifier (GEC) for diagnosis of malignancy in thyroid nodules (TNs) with Bethesda Classification (BC) III or IV indeterminate cytology. METHODS: This preliminary single-center prospective study was approved by the Institutional Review Board. We evaluated 151 consented patients with 151 indeterminate TNs (123 BC III, 28 BC IV) on fine-needle aspiration biopsy (FNAB). B-mode ultrasound, vascularity, and SWE were performed prior to FNAB. TN stiffness was measured as shear wave velocity (SWV) in meters per second (m/s). The stiffest area of the TN was selected for SWV measurement. GEC testing was performed with a second FNAB. Surgery was recommended for GEC-suspicious TNs, or GEC-benign TNs with two or more worrisome B-mode US features. RESULTS: Surgical pathology confirmed 31 malignant TNs. Among the GEC-suspicious group, 28 of 59 TNs were malignant. The SWV value of >=3.59 m/s was the best cut-off for malignancy risk based on the receiver operating curve (ROC). Twenty-six malignant TNs had SWV >= 3.59 m/s. The sensitivity and specificity for SWV >= 3.59 m/s were 83.9 and 79.2%, respectively. Positive predictive value (PPV) was 51.0% and negative predictive value (NPV) was 95.0%. For the GEC-suspicious group, sensitivity, specificity, PPV, and NPV were 90.3, 74.2, 47.5, and 96.7%, respectively. In multivariate analysis, SWV and GEC-suspicious were significant predictors of malignancy, but B mode features and vascularity were not. CONCLUSION: This preliminary study indicates that SWE and GEC are independent predictors of malignancy in TNs with BC III or IV. PMID- 29350312 TI - Genesurance Counseling: Patient Perspectives. AB - Genetic counselors (GCs) have reported an increase in discussion of insurance related, or "genesurance," topics during genetic counseling sessions. Despite increasing frequency, there have been no studies examining patient expectations of GCs in these discussions. This study aimed to explore patient expectations of GCs in these discussions, as well as examine factors that may impact expectations. A 38-item survey was administered prior to patients receiving prenatal or cancer genetic counseling at 11 clinic sites across UTHealth, Baylor College of Medicine, and Sanford Health, with 360 responses analyzed. Key variables were analyzed using descriptive statistics, chi-square analysis, and multivariate logistic regression to assess associations between factors and control for potential confounders. Over 75% of patients expected GCs to discuss genesurance topics during a genetic counseling session. The majority of patients (78%) expected GCs to provide an estimated out-of-pocket cost, know if a test is a covered benefit (77%), and provide referral information for further questions (76%). Two additional expectations, considered to be unrealistic in most clinical settings, included expecting GCs to know the patient's specific insurance plan and coverage information (57%) and provide an exact out-of-pocket cost (41%). Ethnicity was the only significant predictor of response for these two expectations, as African Americans and Hispanics were more likely than Caucasians to have these beliefs. While the patient participants felt that GCs were primarily responsible for initiating these conversations, they also reported a personal sense of responsibility for raising questions. This study demonstrates that patients may expect GCs to address genesurance topics in a genetic counseling session, with specific expectations about the cost and coverage of genetic tests. Further studies will establish the most effective way to communicate this information to patients and examine whether and where within the scope of GC practice, genesurance discussions fall. PMID- 29350313 TI - Immobilization of Methylosinus trichosporium OB3b for methanol production. AB - Due to the natural gas boom in North America, there is renewed interest in the production of other chemical products from methane. We investigated the feasibility of immobilizing the obligate methanotrophic bacterium Methylosinus trichosporium OB3b in alginate beads, and selectively inactivating methanol dehydrogenase (MDH) with cyclopropane to produce methanol. In batch cultures and in semi-continuous flow columns, the exposure of alginate-immobilized cells to cyclopropane or cyclopropanol resulted in the loss of the majority of MDH activity (> 80%), allowing methanol to accumulate to significant concentrations while retaining all of M. trichosporium OB3b's methane monooxygenase capacity. Thereafter, the efficiency of methanol production fell due to recovery of most of the MDH activity; however, subsequent inhibition periods resulted in renewed methanol production efficiency, and immobilized cells retained methane-oxidizing activity for at least 14 days. PMID- 29350314 TI - Eimeria maricopensis n. sp. (Apicomplexa: Eimeriidae) from the Arizona cotton rat Sigmodon arizonae Mearns (Rodentia: Cricetidae) in central Arizona, USA. AB - Eimeria maricopensis n. sp. (Apicomplexa: Eimeriidae) is described from 2 of 15 (13%) Arizona cotton rats Sigmodon arizonae Mearns in Arizona, USA. Sporulated oocysts of this new species are ovoidal to ellipsoidal, 20-28 * 16-22 (24.9 * 19.2) um, with a smooth, bi-layered wall; both micropyle and oocyst residuum are absent, but fragmented polar granule material is present. Sporocysts are ellipsoidal, 11-14 * 6-8 (12.9 * 7.0) um, with a Stieda body, sub-Stieda body, and sporocyst residuum; sporozoites are elongate with a spheroidal anterior refractile body and a subspheroidal posterior refractile body. In addition, sporulated oocysts of Eimeria sigmodontis Barnard, Ernst & Dixon, 1974, Eimeria tuskegeensis Barnard, Ernst & Dixon, 1974 and Eimeria webbae Barnard, Ernst & Dixon, 1974 are described from S. arizonae. This is the first report on the coccidia of S. arizonae. PMID- 29350316 TI - Influence of Personality and Motivation on Oral Presentation Performance. AB - Personality and motivation have been identified as influential variables associated with foreign language learning; however, few studies have investigated their effect on oral presentations. This study addresses the importance of both personality and motivation in students' collaborative oral presentation performance. A Big Five personality trait questionnaire measuring Extraversion, Agreeableness, Conscientiousness, Neuroticism and Openness to Experience, together with the Collaborative Inquiry-based Project Questionnaire measuring Task, Project Work, Reinforcement, Social Learning and Social Pressure motivational constructs were employed to evaluate 257 university students. In general, the results showed that Extraversion, Project Work and Social Pressure were significant correlates of oral presentation scores. The first result suggests that extraverts possess superiority in situations where oral language production is central to communication. This was particularly true for lower level students, inferring that extraverted personalities can compensate for a lower English language ability. The second indicates that the inquiry-based nature of the assignments was an intrinsic motivator especially valued by extraverts. The third implies that extrinsic motivation was a factor influencing student performance. These findings extend previous research by highlighting the contextual relationships between these affective variables and performance in collaborative oral presentation contexts. PMID- 29350315 TI - Revisiting embryo assisted hatching approaches: a systematic review of the current protocols. AB - Zona pellucida (ZP) manipulation, termed "assisted hatching" (AH), has been introduced in order to favor embryo hatching and ultimately improve assisted reproductive technology success but with poor proofs of safety and biological plausibility. We herein provide a systematic review of clinical outcomes following the application of different methods of ZP manipulation on fresh or frozen/thawed embryos at different developmental stages in different groups of patients. Out of the 69 papers that compared the clinical outcomes deriving from hatched versus non-hatched embryos, only 11 considered blastocysts while the rest referred to cleavage stage embryos. The ZP thinning of fresh embryos either by chemical or laser approach was shown to provide very limited benefit in terms of clinical outcomes. Better results were observed with procedures implying a higher degree of zona manipulation, including zona removal. Studies comparing the mechanical or chemical procedures to those laser-mediated consistently reported a superiority of the latter ones over the former. Literature is consistent for a benefit of ZP breaching in thawed blastocysts. This review provides the current knowledge on the AH procedure in order to improve its efficacy in the appropriate context. Embryologists might benefit from the approaches presented herein in order to improve Assisted Reproduction Technologies (ART) outcomes. PMID- 29350317 TI - A study on the role that quorum sensing play in antibiotic-resistant plasmid conjugative transfer in Escherichia coli. AB - Horizontal genes transfer (HGT) plays an important role in the dissemination of antibiotic resistance genes (ARGs) in the environment. However, the mechanisms of HGT of ARGs under the influence of antibiotics in sub-MIC remain rarely explored. Moreover, given its collective nature, HGT was considered to be relative to quorum sensing (QS) system. To investigate whether QS has any impact on horizontal gene transfer of ARGs, experiments were conducted to determine the conjugative efficiency of plasmid RP4 on Escherichia coli (E.coli) under the influences of tetracyclines (TCs), quorum sensing autoinducers (AIs) and quorum sensing inhibitors (QSIs). The results indicated that the sub-MIC TCs could facilitate the conjugative transfer of RP4, a process which could be enhanced by AIs but inhibited by QSIs. This study demonstrated the roles that QS played in the dissemination of ARGs, and provided theoretical insights into the mechanism of HGT of ARGs in the environment. PMID- 29350318 TI - Father Absence, Social Networks, and Maternal Ratings of Child Health: Evidence from the 2013 Social Networks and Health Information Survey in Mexico. AB - Objectives To bridge the literature on the effect of father absence, international migration, and social networks on child health, we assess the association between father absence and maternal ratings of child poor health (MCPH). Next we test whether social networks of immediate and extended kin mediate the relationship between fathers' absence and MCPH. Methods Nested logistic regression models predicting MCPH are estimated using the 2013 Social Networks and Health Information Survey, collected in a migrant-sending community in Guanajuato, Mexico. These unique data distinguish among father absence due to migration versus other reasons and between immediate and extended kin ties. Results Descriptive results indicate that 25% of children with migrant fathers are assessed as having poor health, more often than children with present (15.5%) or otherwise absent fathers (17.5%). In the multivariate models, fathers' absence is not predictive of MCPH. However, the presence of extended kin ties for the mother was associated with approximately a 50% reduction in the odds of MCPH. Additionally, mother's poor self-assessed health was associated with increased odds of MCPH while the presence of a co-resident adult lowered the odds of MCPH. In sensitivity analysis among children with migrant fathers, the receipt of paternal remittances lowered the odds of MCPH. Conclusions for Practice Social networks have a direct and positive association with MCPH rather than mediating the father absence-MCPH relationship. The presence of extended kin ties in the local community is salient for more favorable child health and should be considered in public health interventions aimed at improving child health. PMID- 29350319 TI - Complexity of Resiliency Framework for Refugee Population: A Letter to the Editor Regarding Wright et al. (2016). PMID- 29350320 TI - Ethical Implications in Vaccine Pharmacotherapy for Treatment and Prevention of Drug of Abuse Dependence. AB - Different immunotherapeutic approaches are in the pipeline for the treatment of drug dependence. "Drug vaccines" aim to induce the immune system to produce antibodies that bind to drugs and prevent them from inducing rewarding effects in the brain. Drugs of abuse currently being tested using these new approaches are opioids, nicotine, cocaine, and methamphetamine. In human clinical trials, "cocaine and nicotine vaccines" have been shown to induce sufficient antibody levels while producing few side effects. Studies in humans, determining how these vaccines interact in combination with their target drug, are underway. However, although vaccines can become a reasonable treatment option for drugs of abuse, there are several disadvantages that must be considered. These include i) great individual variability in the formation of antibodies, ii) the lack of protection against a structurally dissimilar drug that produces the same effects as the drug of choice, and iii) the lack of an effect on the drug desire that may predispose an addict to relapse. In addition, a comprehensive overview of several crucial ethical issues has not yet been widely discussed in order to have not only a biological approach to immunotherapy of addiction. Overall, immunotherapy offers a range of possible treatment options: the pharmacological treatment of addiction, the treatment of overdoses, the prevention of toxicity to the brain or the heart, and the protection of the fetus during pregnancy. So far, the results obtained from a small-scale experiment using vaccines against cocaine and nicotine suggest that a number of important technical challenges still need to be overcome before such vaccines can be approved for clinical use. PMID- 29350321 TI - Sliding to predict: vision-based beating heart motion estimation by modeling temporal interactions. AB - PURPOSE: Technical advancements have been part of modern medical solutions as they promote better surgical alternatives that serve to the benefit of patients. Particularly with cardiovascular surgeries, robotic surgical systems enable surgeons to perform delicate procedures on a beating heart, avoiding the complications of cardiac arrest. This advantage comes with the price of having to deal with a dynamic target which presents technical challenges for the surgical system. In this work, we propose a solution for cardiac motion estimation. METHODS: Our estimation approach uses a variational framework that guarantees preservation of the complex anatomy of the heart. An advantage of our approach is that it takes into account different disturbances, such as specular reflections and occlusion events. This is achieved by performing a preprocessing step that eliminates the specular highlights and a predicting step, based on a conditional restricted Boltzmann machine, that recovers missing information caused by partial occlusions. RESULTS: We carried out exhaustive experimentations on two datasets, one from a phantom and the other from an in vivo procedure. The results show that our visual approach reaches an average minima in the order of magnitude of [Formula: see text] while preserving the heart's anatomical structure and providing stable values for the Jacobian determinant ranging from 0.917 to 1.015. We also show that our specular elimination approach reaches an accuracy of 99% compared to a ground truth. In terms of prediction, our approach compared favorably against two well-known predictors, NARX and EKF, giving the lowest average RMSE of 0.071. CONCLUSION: Our approach avoids the risks of using mechanical stabilizers and can also be effective for acquiring the motion of organs other than the heart, such as the lung or other deformable objects. PMID- 29350322 TI - Do telehealth interventions improve oral anticoagulation management? A systematic review and meta-analysis. AB - The benefits and harms of telehealth interventions compared to usual care for oral anticoagulation management are unclear. A systematic review and meta analysis was conducted to assess their impact on clinically important outcomes. A search was conducted through MEDLINE, EMBASE and CENTRAL databases, and the retrieved citations were independently screened and extracted by two review authors. Cochrane Collaboration-recommended tools were used to assess for risk of bias. Co-primary outcomes were major bleeding and major thromboembolic events. Of 2145 retrieved citations, 7 were included for qualitative synthesis (1 randomized controlled trial, 1 prospective cohort and 5 retrospective cohorts). None addressed direct oral anticoagulants. Telehealth interventions were mainly consisted of telephone visits by clinicians, pharmacists and specialists. Meta analysis of 3 studies (n = 6955) showed significant improvements in the telehealth group for major thromboembolic events (RR 0.43, 95% CI 0.25-0.74, p = 0.002), but no significant difference for major bleeding events (RR 0.83, 95% CI 0.52-1.33, p = 0.44). There was no significant difference in any of the secondary outcomes. The overall GRADE quality of evidence was rated very low due to high risk of bias and low precision. Based on very low quality evidence, telehealth interventions may lower the risk of major thromboembolic events, but not other clinically important outcomes. A high quality study is likely to strongly influence these results. High quality randomized trials are recommended to better assess the benefits and harms of telehealth interventions for anticoagulation management. PMID- 29350323 TI - William E. Vidaver (1921-2017): an innovator, enthusiastic scientist, inspiring teacher and a wonderful friend. AB - William (Bill) E. Vidaver (February 2, 1921-August 31, 2017), who did his Ph.D. with Laurence (Larry) R. Blinks at Stanford (1964) and a postdoc with C. Stacy French (1965), taught and did research at Simon Fraser University (SFU) for almost 30 years. Here he published over 80 papers in photosynthesis-related areas co-authored by his graduate students, postdocs, visiting professors and SFU colleagues. He developed a unique high-pressure cuvette for the study of oxygen exchange and studied high-pressure effects in photosynthesis. Ulrich (Uli) Schreiber, as a postdoctoral fellow from Germany, introduced measurements on chlorophyll (Chl) a fluorescence to Bill's lab, leading to the discovery of reversible inhibition of excitation energy transfer between photosynthetic pigments and of a pivotal role of O2 in the oxidation of the electron transport chain between Photosystem II (PS II) and PS I. Bill's and Uli's work led to a patent of a portable chlorophyll fluorometer, the first available commercially, which was later modified to measure whole plantlets. The latter was used in pioneering measurement of the health of forest and crop plants undergoing in vitro clonal micropropagation. With several other researchers (including Doug Bruce, the late Radovan Popovic, and Sarah Swenson), he localized the quenching site of O2 and showed a dampening effect on measurements of the four-step process of O2 production by endogenous oxygen uptake. Bill is remembered as a hard working but fun-loving person with a keen mind and strong sense of social justice. PMID- 29350324 TI - Evolving Landscape of Clinical Trials in Heart Failure: Patient Populations, Endpoint Selection, and Regions of Enrollment. AB - PURPOSE OF REVIEW: Clinical trial design and execution are evolving as increasingly important considerations with respect to the success of heart failure trials. The current review highlights temporal trends in characteristics of heart failure clinical trials. RECENT FINDINGS: Recent trials in heart failure have required longer recruitment phases, displayed inefficient enrollment rates, increased use of composite and nonfatal endpoints, undergone rapid globalization, and gradually increased focus on heart failure with preserved ejection fraction. Understanding patterns and trends in clinical trial design and execution may inform future planning and conduct of trials of heart failure therapeutics. PMID- 29350325 TI - Evaluation and Management of Rotator Cuff Tears: a Primary Care Perspective. AB - PURPOSE OF REVIEW: To provide a primary care perspective regarding the evaluation and management of shoulder pain and rotator cuff tears. RECENT FINDINGS: In the primary care setting, rotator cuff pathology is commonly encountered. Information regarding the risks of oral medications for the management of the associated pain keeps mounting. Partial-thickness rotator cuff tears remain difficult to diagnose with a single imaging modality. Musculoskeletal education in medical schools and non-orthopaedic residency and fellowship training programs continues to be an area for additional improvement. In the primary care office, the initial evaluation of shoulder pain should include a thorough musculoskeletal evaluation in order to identify the source of the pain (e.g., shoulder, cervical spine, chest wall), as well as the development of an initial treatment plan. Access to imaging modalities such as ultrasound and MRI can vary depending on the resources available in the primary care setting. The identification of patients who may benefit from early surgical referral is imperative for optimizing outcomes. PMID- 29350326 TI - Oxyresveratrol prevents murine H22 hepatocellular carcinoma growth and lymph node metastasis via inhibiting tumor angiogenesis and lymphangiogenesis. AB - The purpose of this study was to investigate the effects and mechanisms of oxyresveratrol (Oxyres) on hepatocellular carcinoma (HCC) in vitro and in vivo. The MTT and Transwell assays were performed to investigate the effects of Oxyres on cell proliferation and migration of two HCC cell lines, QGY-7701 and SMMC-7721 cells. H22 cells were subcutaneously injected into hind foot pads of 70 male mice to establish a lymph node metastasis model. These mice were randomly divided into seven groups as follows, control group, HCC group, Oxyres 20 mg/kg group, Oxyres 40 mg/kg group, Oxyres 60 mg/kg group, Resveratrol (Res) group, and Adriamycin (ADM) group. Oxyres, Res, and ADM were intraperitoneally injected daily for consecutive 21 days. Tumors and popliteal lymph node were isolated and embedded for histology analysis. Expressions of CD31 and vascular endothelial growth factor receptor-3 (VEGFR3) in tumors were detected by immunohistocehmistry. Expressions of vascular endothelial growth factor C (VEGF-C) were measured by Western blot. Oxyres significantly inhibited the proliferation and migration of QGY-7701 and SMMC-7721 cells. Oxyres significantly inhibited tumor growth (p < 0.001) and metastasis to sentinel lymph nodes (70%) in a dose-dependent manner. Oxyres showed a similar inhibition rate as Res. Oxyres also significantly decreased micro-blood vessel density and micro-lymphatic vessel density in tumors (p < 0.05). Expressions of CD31, VEGFR3, and VEGF-C of tumors were also inhibited by Oxyres (p < 0.05). Oxyres exerts anti-tumor effects against HCC through inhibiting both angiogenesis and lymph node metastasis, which suggests Oxyres be a potential therapeutic agent. PMID- 29350327 TI - Hypermutated Tumors and Immune Checkpoint Inhibition. AB - Microsatellite instability-high/DNA mismatch repair deficient tumors are found across the cancer spectrum and often harbor markedly increased numbers of mutations when compared to microsatellite stable/DNA mismatch repair proficient tumors. As a result of this high mutational load, tumor-infiltrating lymphocyte density is increased and more immunogenic neoepitopes are expressed, leading to upregulation of immune checkpoints in these tumors. Checkpoint inhibitors such as pembrolizumab and nivolumab, both immunoglobulin G4 (IgG4) monoclonal antibodies that block interactions between the programmed cell death receptor-1 and its ligands, have significant activity in this tumor class. This review will focus on hypermutated tumors and immuno-oncology drug development for this biologically unique tumor type, with an emphasis on FDA-approved immunotherapies for these cancers, as well as a short discussion of the many therapeutic and scientific challenges ahead in order to optimize the uses of this new class of drug. PMID- 29350328 TI - Uyghur Text Matching in Graphic Images for Biomedical Semantic Analysis. AB - How to read Uyghur text from biomedical graphic images is a challenge problem due to the complex layout and cursive writing of Uyghur. In this paper, we propose a system that extracts text from Uyghur biomedical images, and matches the text in a specific lexicon for semantic analysis. The proposed system possesses following distinctive properties: first, it is an integrated system which firstly detects and crops the Uyghur text lines using a single fully convolutional neural network, and then keywords in the lexicon are matched by a well-designed matching network. Second, to train the matching network effectively an online sampling method is applied, which generates synthetic data continually. Finally, we propose a GPU acceleration scheme for matching network to match a complete Uyghur text line directly rather than a single window. Experimental results on benchmark dataset show our method achieves a good performance of F-measure 74.5%. Besides, our system keeps high efficiency with 0.5s running time for each image due to the GPU acceleration scheme. PMID- 29350329 TI - Detection of human papillomavirus DNA in tumors from Rwandese breast cancer patients. AB - BACKGROUND: During the last decades, a great interest was given to viral etiology of breast cancer. Indeed, due to recent technical improvements and some encouraging new results, it has been a resurgence of interest in the possibility that a substantial proportion of human breast cancers may be caused by viral infections. High-risk genotypes of human papillomavirus (HPV) have been found in breast cancer cases. In the present study, we aimed to assess the presence of HPV DNA in breast cancer cases from Rwanda and to evaluate the association between HPV infection and clinico-pathological features. METHODS: Therefore, a total of 47 archived formalin-fixed paraffin-embedded biopsies were collected and complete information was recorded. HPV detection and genotyping were done by PCR amplification and DNA sequencing. RESULTS: Overall, HPV DNA was found in 46.81% of cases, HPV16 being the most prevalent subtype (77.27%) followed by HPV33 (13.64%) and HPV31 (9.09%). Comparison of HPV with clinico-pathological features showed no significant difference between HPV infection and breast localization, histological subtype, clinical stage, tumor grade, and intrinsic molecular subtypes. CONCLUSIONS: These findings provide evidence of high prevalence of high risk HPV in Rwandese patients with breast cancer and suggest that high-risk HPV infections could be a risk factor associated with human breast cancer development. PMID- 29350330 TI - Role of dual-energy CT in the diagnosis and follow-up of gout: systematic analysis of the literature. AB - The aim of this systematic review was to determine the potential role of dual energy CT in the diagnosis and follow-up of gout with regard to the Outcome Measures in Rheumatology (OMERACT) filter. A systematic analysis of the literature was conducted using the MEDLINE and Cochrane databases and published abstracts of international congresses, according to the criteria of the OMERACT filter: feasibility, reproducibility, validity versus laboratory (serum urate, MSU synovial fluid aspirate) and other imaging modalities for gout, and its sensitivity to change in patients on urate lowering therapy (ULT). Thirty-two articles were found representing a total of 1502 patients. The data on feasibility showed that the examination took little time and involved low levels of radiation but had current limited availability. Intra- and inter-observer reproducibility was excellent, with intra-class correlation coefficients > 0.9. Validity in comparison with polarized-light microscopy showed good sensitivity and specificity (> 80%). The diagnostic performance was better than that of radiography and conventional CT-scan and at least equivalent to that of ultrasonography. The sensitivity to change varied with effect sizes from 0.05 (low) to 1.24 (high) for decrease in the tophus volume following different ULT in gout patients. Dual-energy CT-scan is a reproducible and accurate imaging modality for the diagnosis of gout, particularly for tophaceous gout (intra- or extra-articular). It can become a second-line imaging modality of choice in cases of diagnostic doubt, such as ultrasonography. Its role remains uncertain in the follow-up of gout patients treated with ULT and needs further clarification. PMID- 29350331 TI - Motion deficit in nodal interphalangeal joint osteoarthritis by digital goniometer in housewives. AB - Range of motion (ROM) measured objectively in nodal hand osteoarthritis (NHOA) is missing. Evaluation of collateral ligaments by ultrasound (US) is unknown in NHOA also. To compare ROM in interphalangeal joints in housewives with nodal OA, with a control group by a digital system using angle to voltage (Multielgon). The second objective was to assess correlation between collateral radial and ulnar ligaments thickness and ROM. For this cross-sectional observational study, we assessed 60 hands with symptomatic NHOA and 30 hands of healthy housewives matched for age. We obtained clinical and demographic characteristics (a complete standardized physical examination of hand joints, DASH questionnaire, pain surveys, gross grasp hand goniometer, and ROM measurements by Multielgon. Presence of synovitis, power Doppler signal, osteophytes, and collateral ligaments thickness was evaluated by US. We used descriptive statistics, Spearman correlation, X2 test, t test and odds ratio. Significant less gross grasp and ROM in the right hand were observed in NHOA (p = 0.01 for both). Presence of OA, painful joints, disease duration, and score DASH were significant correlated with reduced ROM (OR 4.12, 4.12, 1.04 and 1.09, respectively). Reduced ROM was statistical significant in thumb MCP and IP joints, second and third DIP in dominant hand. There was no association between collateral radial and ulnar ligaments and reduced ROM. Synovitis and osteophytes were more prevalent in OA group. Multielgon demonstrated the pattern of reduced ROM in nodal OA of housewives particularly in MCP and IP thumb joints, second and third distal interphalangeal joints. PMID- 29350332 TI - Sleep in ankylosing spondylitis and non-radiographic axial spondyloarthritis: associations with disease activity, gender and mood. AB - The study aims were to assess the prevalence of good or poor sleep in a cohort of axial spondyloarthritis patients and to investigate its correlation with a range of objectively and subjectively measured variables in order to develop a model for distinguishing good from poor sleepers. Five hundred ninety-eight patients with ankylosing spondylitis and 61 with non-radiographic axial spondyloarthritis completed the Jenkins Sleep Evaluation Questionnaire. Measures of disease activity, mobility, function, mood, fatigue, quality of life, work productivity, night-time pain and general health were gathered. Patients with ankylosing spondylitis or non-radiographic axial spondyloarthritis were initially compared. With the exception of waking up tired less often and having lower mobility and functioning, the two groups were similar so were combined for subsequent analysis. Twenty-nine percent of all patients were classified as good sleepers and 19% as poor sleepers. Poor sleepers had higher disease activity and fatigue scores and more night-time back pain than good sleepers. They reported poorer quality of life, general health, mood and work-related measures. A model incorporating mood, gender, fatigue and objective and subjective judgements of disease activity correctly classified 87.3% of good and poor sleepers. Poor sleep was strongly associated with poor mood, female gender, greater fatigue, greater disease activity (specifically, spinal pain and stiffness) and better mobility; however, the direction of causality between poor sleep and markers of active disease was undetermined. This study also highlights the need to standardise the measurement of sleep disturbance in axSpA to facilitate comparisons between patient groups and interventions. PMID- 29350333 TI - Deltoid muscle morphometry as an index of impaired skeletal muscularity in neonatal intensive care. AB - : We hypothesised that extremely premature infants would have decreased muscle mass at term-corrected age compared to term-born infants and that the degree of reduced muscle mass acquisition would correlate with the duration of invasive mechanical ventilation. The MRI brain scans of infants admitted in the neonatal unit at King's College Hospital between 1 January 2010 and 1 June 2016 were retrospectively reviewed. The coronal cross-sectional area of the left deltoid muscle (DCSA) was measured in 17 infants born < 28 weeks of gestation and in 20 infants born at term. The prematurely born infants had a median (IQR) gestation age of 25 weeks (24-27) and the term infants 40 weeks (38-41). The duration of invasive mechanical ventilation for the prematurely born infants was 39 days (14 62) and that for the term infants 4 days (2-5), p < 0.001. DCSA was smaller in prematurely born infants (median 189, IQR 176-223 mm2) compared to term-born infants (median 302, IQR 236-389 mm2), p < 0.001. DCSA was related to gestation age (r = 0.545, p = 0.001), weight z-score at MRI (r = 0.658, p < 0.001) and days of invasive mechanical ventilation (r = - 0.583, p < 0.001). In conclusion, extremely premature infants studied at term had a lower muscle mass compared to term-born infants. CONCLUSION: Our results suggest that prolonged mechanical ventilation in infants admitted in neonatal intensive care is associated with reduced skeletal muscle mass acquisition. What is Known: * Prolonged mechanical ventilation in adult intensive care patients has been associated with skeletal muscle dysfunction and atrophy. * The cross-sectional area of the deltoid muscle has been used to evaluate muscle atrophy in infants with a previous branchial plexus birth injury. What is New: * Premature infants studied at term exhibit lower cross-sectional area of the deltoid muscle than their term counterparts. * Prolonged mechanical ventilation could be associated with skeletal muscle impairment. PMID- 29350334 TI - The triglyceride-glucose index, an insulin resistance marker in newborns? AB - : The study aims to assess the utility of the triglyceride-glucose index (TyG) as a marker of insulin resistance (IR) in neonates. TyG and the homeostatic model assessment (HOMA-IR) values were compared in 196 singleton, term normoweight and without distress newborns. A Decision Tree procedure (CHAID) was used to classify cases into groups or predict values of a dependent (Ln HOMA-IR) variable. Three nodes were drawn for TyG: <= 6.7, > 6.7-7.8 and > 7.8 (p < 0.0001; F = 20.52). The predictability of those TyG values vs HOMA-IR was statistically significant (p < 0.0001). It was neither affected by gender (p = 0.084), glucose challenge test (p = 0.138) classifications nor by the TyG node* glucose challenge test and TyG node*gender interactions (p = 0.456 and p = 0.209, respectively). Glucose, HOMA-IR, and the triglyceride/HDL cholesterol ratio increased progressively from node 1 to 3 for TyG while QUICKI decreased. CONCLUSION: In conclusion, TyG appears to be a suitable tool for identifying IR at birth, justifying the further insulin determination in those neonates. TyG >= 7.8 is recommended as cut-off point in neonates. The need for a follow-up study to confirm the TyG as early IR marker is desirable. WHAT IS KNOWN: * HOMA-IR and the triglyceride-glucose index (TyG) show a high correlation. * The TyG has been used as an insulin resistance marker in adults. WHAT IS NEW: * This is the first study where TyG has been assessed in neonates. * TyG appears to be a suitable and cheap tool for identifying insulin resistance at birth. PMID- 29350336 TI - Brain Over Bladder: A Systematic Review of Dual Cholinesterase Inhibitor and Urinary Anticholinergic Use. AB - BACKGROUND: Case reports have demonstrated that dual use of cholinesterase inhibitors (ChIs) and urinary anticholinergics (UAChs) in older adults may be associated with delusions, aggression, changes in cognition, and anxiety, which typically resolve on drug discontinuation. Despite opposing mechanisms of action, these drugs continue to be co-prescribed. OBJECTIVE: This systematic review evaluates cognitive and functional outcomes of dual use of ChIs and UAChs and describes its prevalence. PATIENTS AND METHODS: A literature search using terms related to ChIs and UAChs was conducted. Observational or interventional studies evaluating cognitive or functional outcomes in subjects receiving dual therapy were included for the primary aim. Articles describing prevalence of dual use were included for the secondary aim. RESULTS: Of 1340 unique results, five studies met the inclusion criteria for the primary aim. Four of the studies assessed cognitive outcomes-three failed to identify a significant difference in cognitive function with dual use and the fourth study observed a statistically significant improvement in cognition with dual use of high-dose donepezil and solifenacin when compared with baseline. Three studies assessed functional outcomes-one revealed a 50% greater quarterly decline in activities of daily living (p = 0.01) among dual users functioning in the top quartile, another revealed significant functional improvement in dual users, and the final study did not demonstrate a significant difference. Seventeen articles were included for the secondary aim. Prevalence of dual use ranged from 1.2 to 40.5%. CONCLUSION: This systematic review revealed a high prevalence of dual use of ChIs and UAChs; however, there are mixed results for cognitive and functional outcomes. Results were limited by methodological flaws. Observational or interventional studies assessing dual users are lacking and further study of cognitive and functional risks of dual ChI and UACh use is needed. PMID- 29350335 TI - Tools for Assessment of the Appropriateness of Prescribing and Association with Patient-Related Outcomes: A Systematic Review. AB - BACKGROUND: There are tools and criteria in the literature aimed at distinguishing between appropriate and inappropriate medicines use. However, many have not been externally validated with regard to patient-related outcomes, potentially limiting their use in clinical practice. OBJECTIVES: The aim of the study was to conduct a systematic review to summarise (1) available prescribing appropriateness assessment tools and criteria, and (2) their associations with patient-related outcomes (external validity). METHODS: A systematic review was conducted using MEDLINE, EMBASE and Informit (Health Collection) databases to screen for articles in English that examined (1) tools to assess the appropriateness of prescribing and (2) associations of tools with patient-related outcomes, published between 2000 and 2016, without any limits placed on the study design, participant age or setting. RESULTS: After screening 1710 articles, removing duplicates and shortlisting relevant articles, 42 prescribing assessment tools were identified. Out of the 42 tools, 78.6% (n = 33) provided guidance around stopping inappropriate medications, 28.6% (n = 12) around starting appropriate medications, 61.9% (n = 26) were explicit (criteria based) and 31.0% (n = 13) had been externally validated, with hospitalisation being the most commonly used patient-related outcome (n = 9, 21.4%). CONCLUSION: The results of this systematic review highlight the need for evidence-based and externally validated tools, which combine the different aspects of medication management to optimise patient-related outcomes. PROSPERO registration number: CRD42017067233. PMID- 29350337 TI - Baseline Neurocognitive Functioning Predicts Viral Load Suppression at 1-Year Follow-Up Among Newly Diagnosed HIV Infected Patients. AB - The current prospective observational study evaluated the impact of baseline neurocognitive impairment on future viral load suppression among antiretroviral medication naive persons newly diagnosed with HIV infection. We used the Montreal Cognitive Assessment (MoCA) score less than 26, to identify patients with neurocognitive deficits. Of the 138 patients enrolled; virologic suppression was seen in 61% of the participants, while 72% of the participants had a MoCA score less than 26 at baseline. Variables significantly associated with low MoCA score included higher age (p < 0.01) and presence of depression (p < 0.01). After adjusting for these variables, MoCA score less than 26 was significantly associated with a higher risk of failing achieve viral load suppression (adjusted OR 2.7; 95% CI 1.09-6.69). Baseline neurocognitive deficit as measured by MoCA was associated with a higher risk for failing to achieve viral load suppression at one-year follow-up. PMID- 29350338 TI - Reversible Suppression of Lymphoproliferation and Thrombocytopenia with Rapamycin in a Patient with Common Variable Immunodeficiency. PMID- 29350339 TI - Emerging Insights into the Esophageal Microbiome. AB - PURPOSE OF REVIEW: Analysis of the esophageal microbiome remains a relatively new field of research, and most studies to date have focused on characterizing the esophageal microbiome in states of health and disease. Microbiome alterations have been implicated in the pathogenesis of inflammatory and neoplastic conditions in the colon and elsewhere in the gastrointestinal tract. The epidemiology of various esophageal conditions including Barrett's esophagus (BE), esophageal adenocarcinoma (EAC), esophageal squamous cell carcinoma (ESCC), and eosinophilic esophagitis (EoE) point to the microbiome as a potential co-factor in disease pathogenesis, and the possibility exists that these microbiome alterations could contribute directly to the inflammatory environments necessary for the carcinogenesis or atopy involved in these conditions. RECENT FINDINGS: The native esophageal microbiome is similar in composition to the oral microbiome, with a high relative abundance of the phylum Firmicutes and the genus Streptococcus. Limited studies to date suggest that there are certain microbiome alterations associated with esophageal diseases. Additionally, it may be possible to indirectly assess the esophageal microbiome via non-endoscopic means. This raises the possibility that non-invasive microbiome analysis could be used for disease screening and monitoring. Further understanding of the role of the esophageal microbiome in disease pathogenesis, as well as methods for microbiome alteration, may help elucidate future targets for disease modifying therapies, or minimally invasive screening tools in patients at high risk for development of various esophageal conditions. PMID- 29350340 TI - POEM in the Treatment of Esophageal Disorders. AB - OPINION STATEMENT: PURPOSE OF THE REVIEW: Peroral endoscopic myotomy (POEM) is a novel minimally invasive technique that has emerged as the preferred option for the treatment of achalasia and spastic esophageal disorders (SED) at many centers around the world. In this article, we review and summarize the recent literature on POEM in patients with achalasia and SED. The current article is largely focused on the new developments and findings, extended applications, and long term outcomes of POEM in patients with achalasia and SED. RECENT FINDINGS: POEM is a safe and effective therapy for patients with achalasia and SED. POEM is comparable to Heller myotomy (HM) in terms of safety, efficacy, and complications, including gastroesophageal reflux disease (GERD). Outcomes of POEM are excellent even in patients who had prior failed therapies for achalasia, including failed HM and prior POEM. Recent data also suggest the efficacy and safety of POEM in both pediatric and geriatric patients. GERD after POEM is common, and the majority of patients are asymptomatic. The management, goals of therapy, and long-term outcomes of GERD after POEM are unclear. Objective testing for all patients is recommended. POEM is a validated treatment for all patients with achalasia and SED. Candidates should be carefully selected and appropriately counseled on expected outcomes and the need for long-term surveillance. PMID- 29350341 TI - Health, priority to the worse off, and time. AB - It is a common view that benefits to the worse off should be given priority when health benefits are distributed. This paper addresses how to understand who is worse off in this context when individuals are differently well off at different times. The paper argues that the view that this judgment about who is worse off should be based solely on how well off individuals are when their complete lives are considered (i.e. 'the complete lives view') is implausible in this context. Instead, it is argued that a pluralistic stance toward this issue should be accepted. This pluralistic stance recognizes that also the view that only focuses on how well off individuals are now and in the future (i.e. 'the forward-looking view') is relevant. The argument is based on appeals to intuitive judgments concerning who is worse off in different cases and reference to various underlying reasons why priority to benefits to the worse off is justified. PMID- 29350342 TI - Mesenchymal stromal cells of the bone marrow and natural killer cells: cell interactions and cross modulation. AB - Bone marrow-derived mesenchymal stromal cells (BM-MSCs) are multipotent progenitor cells that have shown promise for several different therapeutic applications. As they are able to modulate the function of several types of immune cells, BM-MSCs are highly important in the field of cell-based immunotherapy. Understanding BM-MSC-natural killer (NK) cell interactions is crucial for improving their therapeutic efficiency. Here, we observed that the type of NK cell-activating cytokine (e.g., IL-2, IL-12, IL-15 and IL-21) strongly influenced the outcomes of their interactions with BM-MSCs. The expression patterns of the ligands (CD112, CD155, ULPB-3) and receptors (LAIR, NCR) mediating the cross-talk between BM-MSCs and NK cells were critically modulated following co-culture. BM-MSCs partially impaired NK cell proliferation but up regulated their secretion of IFN-gamma and TNF-alpha. As they are cytotoxic, activated NK cells induced the killing of BM-MSCs. Indeed, BM-MSCs triggered the degranulation of NK cells and increased their release of perforin and granzymes. Interestingly, activated NK cells induced ROS generation within BM-MSCs that caused their decreased viability and reduced expression of serpin B9. Collectively, our observations reveal that BM-MSC-NK cell interactions may impact the immunobiology of both cell types. The therapeutic potential of BM-MSCs will be significantly improved once these issues are well characterized. PMID- 29350343 TI - Syringic acid, a phenolic acid, promotes osteoblast differentiation by stimulation of Runx2 expression and targeting of Smad7 by miR-21 in mouse mesenchymal stem cells. AB - Syringic acid (SA), a phenolic acid, has been used in Chinese and Indian medicine for treating diabetes but its role in osteogenesis has not yet been investigated. In the present study, at the molecular and cellular levels, we evaluated the effects of SA on osteoblast differentiation. At the cellular level, there was increased alkaline phosphatase (ALP) activity and calcium deposition by SA treatment in mouse mesenchymal stem cells (mMSCs). At the molecular level, SA treatment of these cells stimulated expression of Runx2, a bone transcription factor, and of osteoblast differentiation marker genes such as ALP, type I collagen, and osteocalcin. It is known that Smad7 is an antagonist of TGF beta/Smad signaling and is a negative regulator of Runx2. microRNAs (miRNAs) play a key role in the regulation of osteogenesis genes at the post-transcriptional level and studies have reported that Smad7 is one of the target genes of miR-21. We found that there was down regulation of Smad7 and up regulation of miR-21 in SA-treated mMSCs. We further identified that the 3'-untranslated region (UTR) of Smad7 was directly targeted by miR-21 in these cells. Thus, our results suggested that SA promotes osteoblast differentiation via increased expression of Runx2 by miR-21-mediated down regulation of Smad7. Hence, SA may have potential in orthopedic applications. PMID- 29350344 TI - The relationship between exercise dose and health-related quality of life with a phase III cardiac rehabilitation program. AB - PURPOSE: To quantify the relationship between the change in exercise dose and health-related quality of life (HRQoL) in a cohort of patients participating in a community-based phase-3 cardiac rehabilitation (CR) program. METHODS: A retrospective, pre-experimental (no control group) design of 58 participants that completed a phase-3, 12-week exercise-based CR program was used to test the current hypothesis. Self-reported HRQoL (36-Item Short Form Health Survey Version 2, SF-36v2) was assessed prior and after completing the CR program. The change in exercise dose was estimated from the assigned training load in weeks 1 and 12 of the CR program. A series of regression models were fitted to ascertain the relationship between the change in exercise dose and changes in the SF-36v2. RESULTS: There was a strong quadratic trend between the change in exercise dose and the mean change in SF-36 Mental and Physical Health Summary Scores. Analysis of covariance showed that the mean changes in the SF-36 Summary Scores statistically fluctuate across quartiles of exercise dose. The data show that there is a threshold amount of increase in exercise (Q2; 350-510 kcal week- 1) needed to HRQoL and that greater amounts of exercise dose (Q3; 511-687 and Q4 >= 688 kcal week- 1) did not improve HRQoL further. CONCLUSIONS: The current findings suggest that physical and mental health-related quality of life are improved with a phase-3 CR program. The dose-response relationship observed indicates that a threshold exercise dose is required to improve HRQoL, and that larger doses of exercise do not confer further improvements in HRQoL. PMID- 29350345 TI - Measurement invariance and general population reference values of the PROMIS Profile 29 in the UK, France, and Germany. AB - PURPOSE: Comparability of patient-reported outcome measures over different languages is essential to allow cross-national research. We investigate the comparability of the PROMIS Profile 29, a generic health-related quality of life measure, in general population samples in the UK, France, and Germany and present general population reference values. METHODS: A web-based survey was simultaneously conducted in the UK (n = 1509), France (1501), and Germany (1502). Along with the PROMIS Profile 29, we collected sociodemographic information as well as the EQ-5D. We tested measurement invariance by means of multigroup confirmatory factor analysis (CFA). Differences in the health-related quality of life between countries were modeled by linear regression analysis. We present general population reference data for the included PROMIS domains utilizing plausible value imputation and quantile regression. RESULTS: Multigroup CFA of the PROMIS Profile 29 showed that factor means are insensitive to potential measurement bias except in one item. We observed significant differences in patient-reported health between countries, which could be partially explained by the differences in overall ratings of health. The physical function and pain interference scales showed considerable floor effects in the normal population in all countries. CONCLUSIONS: Scores derived from the PROMIS Profile 29 are largely comparable across the UK, France, and Germany. Due to the use of plausible value imputation, the presented general population reference values can be compared to data collected with other PROMIS short forms or computer-adaptive tests. PMID- 29350346 TI - Chemical Characterization of Young Virgin Queens and Mated Egg-Laying Queens in the Ant Cataglyphis cursor: Random Forest Classification Analysis for Multivariate Datasets. AB - Social insects are well known for their extremely rich chemical communication, yet their sex pheromones remain poorly studied. In the thermophilic and thelytokous ant, Cataglyphis cursor, we analyzed the cuticular hydrocarbon profiles and Dufour's gland contents of queens of different age and reproductive status (sexually immature gynes, sexually mature gynes, mated and egg-laying queens) and of workers. Random forest classification analyses showed that the four groups of individuals were well separated for both chemical sources, except mature gynes that clustered with queens for cuticular hydrocarbons and with immature gynes for Dufour's gland secretions. Analyses carried out with two groups of females only allowed identification of candidate chemicals for queen signal and for sexual attractant. In particular, gynes produced more undecane in the Dufour's gland. This chemical is both the sex pheromone and the alarm pheromone of the ant Formica lugubris. It may therefore act as sex pheromone in C. cursor, and/or be involved in the restoration of monogyny that occurs rapidly following colony fission. Indeed, new colonies often start with several gynes and all but one are rapidly culled by workers, and this process likely involves chemical signals between gynes and workers. These findings open novel opportunities for experimental studies of inclusive mate choice and queen choice in C. cursor. PMID- 29350347 TI - Low birth weight is a conditioning factor for podocyte alteration and steroid dependance in children with nephrotic syndrome. AB - BACKGROUND: Low birth weight (LBW) is associated with reduced nephron endowment. Clinical-pathologic features of post adaptive focal segmental glomerulosclerosis (FSGS) have been observed in subjects with prematurity and very LBW. METHODS: We aimed to investigate the correlation between LBW and outcome in a cohort of 89 children with idiopathic nephrotic syndrome (NS) (2-12 years-old at onset, followed for > 3 years), of whom 21 with LBW (birth weight < 10th percentile for gestational age, gender, ethnicity, and maternal parity or birth weight < 2500 g). RESULTS: Children with NS and LBW were found to have FSGS more frequently than children with normal birth weight (NBW) [8/21 = 38% vs. 4/68 = 6%; odds ratio, OR 7.754 (95% confidence interval, CI 2.184-27.525); chi2 = 9.817; p < 0.003]. Children with LBW and cortico-sensitive NS had a greater risk of cortico dependence (CD) than those with NBW [10/13 = 76.9% vs. 28/63 = 44.4%, OR 4.744 (1.188-18.936); chi2 = 4.158; p < 0.05]. Moreover, children with LBW and CDNS needed a greater dose of immunosuppressive drugs than those with NBW [OR 4 (1.153 13.877); chi2 = 3.842; p = 0.05]. CONCLUSIONS: LBW children developing NS had higher risk of FSGS and CD, and needed heavier immunosuppressive therapy than those with NBW. These data might suggest a conditioning role for hemodynamic and podocyte changes due to reduced nephron mass in LBW. PMID- 29350348 TI - SNF472, a novel inhibitor of vascular calcification, could be administered during hemodialysis to attain potentially therapeutic phytate levels. AB - BACKGROUND: Cardiovascular calcification (CVC) is a major concern in hemodialysis (HD) and the loss of endogenous modulators of calcification seems involved in the process. Phytate is an endogenous crystallization inhibitor and its low molecular mass and high water solubility make it potentially dialyzable. SNF472 (the hexasodium salt of phytate) is being developed for the treatment of calciphylaxis and CVC in HD patients. We aimed to verify if phytate is lost during dialysis, and evaluate SNF472's behaviour during dialysis. METHODS: Dialyzability was assessed in vitro using online-hemodiafiltration and high-flux HD systems in blood and saline. SNF472 was infused for 20 min and quantified at different time points. RESULTS: Phytate completely dialyzed in 1 h at low concentrations (10 mg/l) but not when added at 30 or 66.67 mg/l SNF472. In bypass conditions, calcium was slightly chelated during SNF472 infusion but when the system was switched to dialysis mode the calcium in the bath compensated this chelation. CONCLUSION: Phytate dialyses with a low clearance. The administration of SNF472 as an exogenous source of phytate allows to attain supra-physiological levels required for its potential therapeutic properties. As SNF472 is infused during the whole dialysis session, the low clearance would not affect the drug's systemic exposure. PMID- 29350349 TI - Discovery of the first macrolide antibiotic binding protein in Mycobacterium tuberculosis: a new antibiotic resistance drug target. PMID- 29350350 TI - Biochemical changes and clinical outcomes in 34 patients with classic galactosemia. AB - Impaired activity of galactose-1-phosphate uridyltransferase (GALT) causes galactosemia, an autosomal recessive disorder of galactose metabolism. Early initiation of a galactose-restricted diet can prevent or resolve neonatal complications. Despite therapy, patients often experience long-term complications including speech impairment, learning disabilities, and premature ovarian insufficiency in females. This study evaluates clinical outcomes in 34 galactosemia patients with markedly reduced GALT activity and compares outcomes between patients with different levels of mean galactose-1-phosphate in red blood cells (GAL1P) using logistic regression: group 1 (n = 13) GAL1P <=1.7 mg/dL vs. group 2 (n = 21) GAL1P >= 2 mg/dL. Acute symptoms at birth were comparable between groups (p = 0.30) with approximately 50% of patients presenting with jaundice, liver failure, and failure-to-thrive. However, group 2 patients had significantly higher prevalence of negative long-term outcomes compared to group 1 patients (p = 0.01). Only one of 11 patients >3 yo in group 1 developed neurological and severe behavioral problems of unclear etiology. In contrast, 17 of 20 patients >3 yo in group 2 presented with one or more long-term complications associated with galactosemia. The majority of females >=15 yo in this group also had impaired ovarian function with markedly reduced levels of anti-Mullerian hormone. These findings suggest that galactosemia patients with higher GAL1P levels are more likely to have negative long-term outcome. Therefore, evaluation of GAL1P levels on a galactose-restricted diet might be helpful in providing a prognosis for galactosemia patients with rare or novel genotypes whose clinical presentations are not well known. PMID- 29350352 TI - The Problem Is Not Professional Publishing, But the Publish-or-Perish Culture. AB - The publication of scientific papers has become increasingly problematic in the last decades. Even if we agree that a renewed model is needed for peer-reviewed scientific publication, we think the problem does not essentially lie in professional publishing-with economic incentives-but in the publish-or-perish culture that dominates the lives of researchers and academics. PMID- 29350351 TI - Convection-enhanced delivery of cetuximab conjugated iron-oxide nanoparticles for treatment of spontaneous canine intracranial gliomas. AB - Cetuximab conjugated iron-oxide nanoparticles (cetuximab-IONPs) have shown both in-vitro and in-vivo anti-tumor efficacy against gliomas. The purpose of this pilot study was to evaluate the safety and potential efficacy of cetuximab-IONPs for treatment of spontaneously occurring intracranial gliomas in canines after convection-enhanced delivery (CED). The use of CED allowed for direct infusion of the cetuximab-IONPs both intratumorally and peritumorally avoiding the blood brain barrier (BBB) and limiting systemic effects. A total of eight dogs participated in the study and only two developed mild post-operative complications, which resolved with medical therapy. All canines underwent a single CED treatment of the cetuximab-IONPs over 3 days and did not receive any further adjuvant treatments. Volumetric analysis showed a median reduction in tumor size of 54.9% by MRI at 1-month (4-6 weeks) follow-up. Five dogs were euthanized due to recurrence of neurological signs other than seizures, two due to recurrent seizures, and one dog died in his sleep. Median survival time after surgery was 248 days (mean 367 days). PMID- 29350353 TI - Retraction and Research Integrity Education in China. AB - This article draws the attention of research managers and policy makers to the issue that to become a science power curtailing misconduct is the daunting challenge that emerging countries simply cannot ignore. Systematic and orchestrated efforts are needed to foster and institutionalize research integrity education among all stakeholders. PMID- 29350354 TI - Magnetic, geochemical characterization and health risk assessment of road dust in Xuanwei and Fuyuan, China. AB - As an accumulation of solid organic and inorganic pollutant particles on outdoor ground surfaces, road dust is an important carrier of heavy metal contaminants and can be a valuable medium for characterizing urban environmental quality. Because the dusts can be an important source of atmospheric particles and take impact on human health, the aim of this study described in detail the mineralogical characteristics, morphology, and heavy metal content of road dust from Xuanwei and Fuyuan, locations with high lung cancer incidence. Our results show that the average concentrations of heavy metals in road dust were higher than their background values. Higher concentrations of heavy metals were found in the magnetic fractions (MFs) than in the non-magnetic fractions (NMFs). Magnetic measurements revealed high magnetic susceptibility values in the road dust samples, and the dominant magnetic carrier was magnetite. The magnetic grains were predominantly pseudo-single domain, multi-domain, and coarse-grained stable single domains (coarse SSD) in size. SEM/XRD analysis identified two groups of magnetic particles: spherules and angular/aggregate particles. Hazard index (HI) values for adults exposure to road dust samples, including MF, Bulk, and NMF, in both areas were lower or close to safe levels, while HI values for childhood exposure to magnetic fractions in both areas were very close or higher than safe levels. Cancer risks from road dust exposure in both areas were in the acceptable value range. PMID- 29350355 TI - The biosorption of cadmium and cobalt and iron ions by yeast Cryptococcus humicola at nitrogen starvation. AB - Yeasts Cryptococcus humicola accumulated cadmium, cobalt, and iron (~ 50, 17, and 4% of the content in the medium, respectively) from the medium containing glucose, phosphate, and 2 mmol/L of metal salts. The effects of metal absorption on the levels of orthophosphate (Pi) and inorganic polyphosphate (polyP) varied for the metals under study. The levels of Pi and polyP increased in the case of cadmium and cobalt, respectively. In the case of iron, no changes in the levels of Pi and polyP were observed. Multiple DAPI-stained polyP inclusions were observed in the cytoplasm of cadmium-containing cells. The intensity of DAPI staining of the cell wall especially increased in case of cobalt and iron accumulation. PMID- 29350359 TI - A Tribute to Dr. Shiro Miwa. PMID- 29350358 TI - Streptomyces AcH 505 triggers production of a salicylic acid analogue in the fungal pathogen Heterobasidion abietinum that enhances infection of Norway spruce seedlings. AB - The necrotrophic fungus Heterobasidion spp. is the causal agent of 'annosum root rot' of Norway spruce. In the presence of the rhizosphere bacterium Streptomyces AcH 505, enhanced colonization of Norway spruce roots with Heterobasidion abietinum 331 has previously been observed. By analyzing dual cultures of H. abietinum 331 and Streptomyces AcH 505 with HPLC, a fungal metabolite was identified that was increased in the presence of Streptomyces AcH 505. Likewise, challenge of H. abietum 331 with common antifungals produced by soil streptomycetes rendered the same effect. The structure of the compound, 5 formylsalicylic acid (5-FSA), was elucidated by HPLC-HR-ESI-Orbitrap-mass spectrometry and NMR spectroscopy. Based on in vivo measurements of maximum photosystem II efficiency of Norway spruce seedlings, 5-FSA did not influence plant vitality. However, when challenged with H. abietinum 331, ergosterol amounts in infected roots increased significantly for 5-FSA pre-treated seedlings. The severity of the infection was comparable to that observed in the presence of Streptomyces AcH 505. 5-FSA is a structural analogue of salicylic acid, an important signalling molecule active in plant defence. Thus, the expression of two defence-response related marker genes (PR1, Hel) was analysed in 5-FSA treated Arabidopsis thaliana seedlings by Northern blot analysis. The transcription of both marker genes was altered, indicating that 5-FSA is perceived by Arabidopsis in a similar manner to salicylic acid and is able to interfere with Arabidopsis defence signalling. The role of 5-FSA as a potential virulence factor of H. abietinum 331 in the presence of Streptomyces AcH 505 is discussed. PMID- 29350360 TI - In Memoriam Professor Shiro Miwa. PMID- 29350361 TI - Evaluation of tourniquet application in a simulated tactical environment. AB - BACKGROUND: Application of a tourniquet in a tactical environment is implemented in two ways: the so-called self-aid, which is the application of a tourniquet by the injured, and the so-called buddy aid, which is the application of a tourniquet by the person provide aid. This study aimed to test the quality of tourniquet use in a simulated situation, close quarter battle. METHODS: The study involved 24 injured operators and 72 operators in the whole simulation, implying 12 sections of six individuals. To validate the application of tourniquets, the recommendations of the Committee of Tactical Combat Care of the Injured were used, and ultrasound with Doppler function was employed to assess the hemodynamic effect of applying tourniquets. RESULTS: Native flow was observed in 15 operators; in three people, a trace flow was noticed, whereas in six people, a full flow was observed. No significant difference was found between the qualities of tourniquet application by the operators themselves compared with those of tourniquet application by another person. The median distance of tourniquet application from the armpit was 9.5 cm for self-aid and buddy aid. In 16 participants the outer arrangement of tourniquets was observed, and in only eight participants tourniquets were correctly located on the internal part of the arm. In 18 participants, tourniquets were not correctly prepared for use in the tactical environment, whereas in only six participants, they were correctly prepared. Most operators with a negative ultrasound flow revealed negative distal observed pulse (DOP). Positive DOP occurred in the majority of operators with full ultrasound flow. CONCLUSION: The application of tourniquets poses a challenge even in case of specialized units; therefore, there is a need to provide regular training for implementing that procedure. PMID- 29350362 TI - Which common test should be used to assess spleen autotransplant effect? AB - BACKGROUND: Historically, total splenectomy was the only choice of treatment for traumatic splenic injuries. However, nonoperative management and spleen preserving surgical techniques are preferred in modern medicine. In some situations in which the surgeon has to perform splenectomy, spleen autotransplant may preserve the splenic function. Selecting the best method for evaluating the splenic autotransplant effect has been debated for several years. In this study, we compared three common tests in evaluating the implanted spleen function. METHODS: Participants included 10 patients who were candidates for laparotomy and splenectomy. After performing splenectomy, we implanted five pieces of the spleen in the greater omentum of each patient. After 3 months, the implanted spleen function was evaluated by nuclear red blood cell (RBC) scan, serum immunoglobulin (Ig) M level, and presence of Howell-Jolly (HJ) bodies in the peripheral blood smear. RESULTS: All patients had normal peripheral blood smear. The IgM level was lower than normal in one patient, and scintigraphy did not demonstrate the transplanted spleen in another patient. CONCLUSION: All these tests may have comparable results, but because of availability and low cost of peripheral blood smear, which is also easily performed, it can be considered as the first option to evaluate the implanted spleen function. PMID- 29350363 TI - Is nighttime laparoscopic general surgery under general anesthesia safe? AB - BACKGROUND: Fatigue and sleep deprivation can affect rational decision-making and motor skills, which can decrease medical performance and quality of patient care. The aim of the present study was to investigate the association between times of the day when laparoscopic general surgery under general anesthesia was performed and their adverse outcomes. METHODS: All laparoscopic cholecystectomies and appendectomies performed at the emergency surgery department of a tertiary university hospital from 01. 01. 2016 to 12. 31. 2016 were included. Operation times were divided into three groups: 08.01-17.00 (G1: daytime), 17.01-23.00 (G2: early after-hours), and 23.01-08.00 (G3: nighttime). The files of the included patients were evaluated for intraoperative and postoperative surgery and anesthesia-related complications. RESULTS: We used multiple regression analyses of variance with the occurrence of intraoperative complications as a dependent variable and comorbidities, age, gender, body mass index (BMI), ASA score, and operation time group as independent variables. This revealed that nighttime operation (p<0.001; OR, 6.7; CI, 2.6-16.9) and older age (p=0.004; OR, 1.04; CI, 1.01-1.08) were the risk factor for intraoperative complications. The same analysis was performed for determining a risk factor for postoperative complications, and none of the dependent variables were found to be associated with the occurrence of postoperative complications. CONCLUSION: Nighttime surgery and older patient age increased the risk of intraoperative complications without serious morbidity or mortality, but no association was observed between the independent variables and the occurrence of postoperative complications. PMID- 29350364 TI - A retrospective analysis of 2713 hospitalized burn patients in a burns center in Turkey. AB - BACKGROUND: Burn trauma is a significant health problem that has physical, psychological, and economic repercussions on affected patients. The aim of this study was to present epidemiological and demographic characteristics of patients treated over an 8-year period at a reference burn treatment center located in the northeast of Turkey and serving a population of approximately four million people. METHODS: Each patient's medical record was reviewed, and demographic features, source of burns, place of residence, total body surface area (TBSA), surgical treatment, duration of hospital stay, and mortality rates were analyzed. RESULTS: The most frequent cause of burn was scalding from hot liquids (2013 cases, 74.2%). Freeze burn was observed in 16 (0.6%) cases due to climatic conditions of the region where our burn center is located. Grouping based on TBSA revealed that 88.7% patients had TBSA of 0%-15%, 8% patients had TBSA of 15%-30%, and 3.3% patients had TBSA >= %30.The most common microorganism was Pseudomonas aeruginosa. A total of 24 patients (0.9%; 8 males, 16 females) died, including 7 children and 17 adults. CONCLUSION: Removal of tandirs and replacement with high ovens, restriction of cheese and butter production under primitive circumstances, encouraging cheese and butter production via dairy farm systems, and raising people's awareness through training programs could greatly reduce the number of the burn accidents occurring in this region. PMID- 29350365 TI - Characteristics of pediatric and adult cases with open globe injury and factors affecting visual outcomes: A retrospective analysis of 294 cases from Turkey. AB - BACKGROUND: This study aimed to evaluate 1-year follow-up results of cases that were diagnosed with open globe injury (OGI), to compare trauma-related characteristics between pediatric and adult cases, and to determine risk factors for a poor final visual acuity. METHODS: This study enrolled 294 cases that met the OGI definition and were followed up for at least 1 year. Demographic and clinical features regarding ocular trauma were recorded. The cases were divided into two groups according to age: pediatric (<=16 years) and adult (>16 years) groups. RESULTS: Children were exposed to accidents that led to OGI mostly at home, whereas adults were exposed to such accidents mostly in the office. Penetrating injuries were more common in children than in adults, and injuries most commonly occurred owing to spiky objects. Zone I injuries were most frequent in both children and adults. The frequency of high-grade injuries increased with age. Foreign body injuries and multiple surgeries were more common in adults than in children. There was no difference between the two age groups based on ocular trauma score (OTS) and visual acuity. OTS predicted the need for multiple surgeries. In the adult group, age, multiple surgeries, and initial visual acuity were significant risk factors for the final visual acuity that was achieved. CONCLUSION: OGI causes and risk factors for poor final visual outcomes differ in adults and children. The knowledge of these differences is crucial for taking adequate preventive measures and decreasing morbidity. PMID- 29350366 TI - Health results of a coup attempt: evaluation of all patients admitted to hospitals in Istanbul due to injuries sustained during the July 15, 2016 coup attempt. AB - BACKGROUND: A coup attempt against the government took place in Turkey on July 15, 2016. This attempt caused serious injuries and deaths in the country. In this study, the data of patients referred to all hospitals in Istanbul during the attempt were evaluated, and differences between natural disasters, other terrorist actions, and coup attempts were analyzed. METHODS: In total, 1104 patients were injured in the abovementioned coup attempt. In this study, the demographic and health information of 882 coup victims who were admitted to all hospitals (state and private) in Istanbul on July 15 and 16, 2016 and registered at the Crisis Center of Istanbul Provincial Health Directorate was analyzed. RESULTS: Of the 882 patients evaluated, 97.27% were male and 2.73% were female. The mean age of the patients was 34.12 years. Most (82.43%) patients were admitted to state hospitals, and 17.57% were admitted to private hospitals. The total mortality rate due to the abovementioned coup attempt was 10.4% (9.76% in state hospitals and 13.54% in private hospitals). Of the 882 patients evaluated, 65.07% had gunshot injuries, 11.11% had been assaulted, 7.70% had experienced tank/motor vehicle accidents, 5.44% had other penetrating injuries, 5.32% had soft-tissue trauma, 2.83% had experienced falls (including falls from heights), 0.33% had psychiatric disorders, and 2.15% were admitted for other reasons. CONCLUSION: The patterns of injury and mortality resulting from the July 15, 2016 coup attempt differed from those resulting from natural disasters and terrorist acts and were similar to those encountered during wars: the victims were predominantly male, similar to those in wars. Following a coup attempt, an increase in the number of patients with post-traumatic stress disorder can be expected. Further studies focusing on the incidence of this disorder due to the abovementioned coup attempt in Turkey are needed. Hospital disaster plans need to include information and plans related to terrorist acts, such as coup attempts. PMID- 29350367 TI - Posterior interosseous flap versus reverse adipofascial radial forearm flap for soft tissue reconstruction of dorsal hand defects. AB - BACKGROUND: Our objective was to compare the outcomes of dorsal hand defect reconstruction using a posterior interosseous artery flap (PIAF) and a reverse adipofascial radial forearm flap (RARFF). METHODS: From 2008 to 2013, 23 patients who underwent hand soft tissue defect reconstruction with PIAF (11 patients) and RARFF (12 patients) were included in this retrospective study. Reconstruction methods were compared in terms of functionality with disability of the arm, shoulder, and hand (DASH) score and range of motion (ROM) and aesthetically with scar assessment. Operation times, length of hospital stay, and donor site problems were compared. RESULTS: We found no statistically significant differences between PIAF and RARFF in terms of ROM, DASH score, and length of hospital stay. Statistically significant differences were found in operation time, scar assessment, and donor site problems between PIAF and RARFF patients. CONCLUSION: RARFF showed better results than PIAF in dorsal hand defects, but in RARFF, the major arteries of the hand are sacrificed. PMID- 29350368 TI - Clinical features, diagnosis, and treatment of traumatic pulmonary pseudocysts. AB - BACKGROUND: Traumatic pulmonary pseudocysts (TPP) are rare complications of blunt chest trauma. The aim of this study is to increase the understanding of this rare entity with imaging and clinical parameters for preventing complications and determining the correct treatment approach by observing 15 cases. METHODS: We retrospectively reviewed the medical data and thoracic computed tomography scans of 185 patients who underwent examinations in our department after chest trauma between July 2014 and December 2015. RESULTS: Fifteen patients had TPPs, and their clinical features and imaging findings were evaluated. Their average age was 26.33 (range, 1-89) years. The cause of TPP was traffic accident in 13 patients and falling from a height in two. Tube thoracostomy was required in five patients. None of the patients required thoracotomy, and 66% of them recovered without any complications. Five patients died because of serious concomitant injuries. CONCLUSION: Sudden shearing force across the pulmonary parenchyma results in an area of pulmonary contusion and airtransfer from the airway to the contused area, which in turn leads to pneumatocele formation. Conservative treatment is recommended for these patients, but complications can occur because of cyst rupture. Patients should be closely monitored and be made aware of the risk of life-threatening complications. PMID- 29350369 TI - Analyses of combat-related injuries to the maxillofacial and cervical regions and experiences in an operational field hospital. AB - BACKGROUND: With the changing conditions of war, maxillofacial injuries are observed more frequently. Particularly in urban areas, high-energy explosive devices (HEEDs), such as improvised explosive devices, are often used alongside long-barreled weapons (LBWs). It is important to use trauma scoring systems and a multidisciplinary approach for medically and accurately responding to the trauma patient in a timely manner. This study aimed to compare the Military Combat Injury Scale (MCIS) and Military Functional Incapacity Scale (MFIS) between injuries sustained by LBWs or HEEDs and to share experiences of an operational field hospital. METHODS: Medical data of 84 patients admitted to an operational field hospital with maxillofacial and cervical injuries sustained by LBWs and HEEDs between July 27, 2015, and July 22, 2016 were reviewed. MCIS and MFIS scores were calculated for all patients; records of the qualifying patients were studied for the Glasgow Coma Scale (GCS) scores and injury sites. The patients were divided into two groups according to the device/weapon causing the injury: injuries sustained by LBWs in group I and those sustained by HEEDs in group II. RESULTS: All patients were males, with a mean age of 28.75 (range 20-58) years. The average GCS score was 13.4, but it was lower than 15 in 16 (19%) of the patients. There was no statistically significant difference in MCIS scores between the LBW and HEED groups (p=0.206). In addition, there was no statistically significant difference in MFIS scores between the LBW and HEED groups (p=0.238). CONCLUSION: Maxillofacial and cervical region injuries are increasing in modern conflicts that are usually located in urban areas. Injuries sustained by HEEDs as well as those sustained by LBWs in the maxillofacial area are morbid and mortal. Rapid and comprehensive intervention is life-saving and helping the patient to further trauma treatment. PMID- 29350370 TI - Operative and non-operative management of children with abdominal gunshot injuries. AB - BACKGROUND: Non-operative management (NOM) is a standard treatment method for solid organ injuries worldwide. There is no consensus on the management of gunshot wounds (GSW) because of the higher frequency of hollow viscus injuries (HVI) and the unpredictable depth of tissue damage produced by kinetic energy transfer during retardation of the bullet. Here we aimed to reevaluate indications for surgery and NOM based on our pediatric patients with abdominal GSW. METHODS: We performed a retrospective analysis of patients evaluated and treated for abdominal GSW at University of Dicle between January 2010 and October 2016. Patients with hemodynamic instability, signs of peritonitis on serial abdominal examination, and free air in the abdomen underwent laparotomy; these were included in group I (n=17). Patients managed non-operatively were included in group II (n=13). RESULTS: Our statistical analysis showed significantly lower Hb levels and systolic blood pressure levels (p<0.001) and higher pulse rate, higher mean injury severity score, and longer length of stay at intensive care unit in patients in group I than in those in group II (p<0.001). We further detected colon perforation (n=10) and small bowel perforation (n=7) in patients in group I; liver laceration (n=4), splenic injury (n=1), and renal injury (n=3) but no solid organ injury or HVI (n=5) were detected in patients in group II. CONCLUSION: The major drawback of NOM is the difficulty in diagnosing HVI in abdominal GSW, which may delay treatment. We suggest that patients with solid organ damage who are hemodynamically stable and exhibit no signs of peritonitis upon serial abdominal exam may be treated with NOM. PMID- 29350371 TI - Fundus-first technique and partial cholecystectomy for difficult laparoscopic cholecystectomies. AB - BACKGROUND: This study aims to evaluate the impact of conversion from retrograde dissection to fundus-first technique (FF) or laparoscopic partial cholecystectomy (LPC) on complication rates, operation time, and duration of hospitalization. METHODS: The medical records of 210 consecutive patients who underwent laparoscopic cholecystectomy between January 2010 and December 2014 were retrospectively evaluated. All laparoscopic cholecystectomies were initiated with retrograde dissection (RD). In cases of difficulty in dissection of critical view of safety , the operation strategy was first converted to FF and then to LPC when FF was considered insufficient for safe cholecystectomy. RESULTS: Of the 210 cases, LC was initiated and completed with RD in 197 cases. FF was implemented in 13 cases due to difficulties in dissection. In the FF group, laparoscopic total cholecystectomy was successfully accomplished in seven patients, and LPC was performed in the remaining six cases. Three postoperative complications occurred in the RD group and two in the LPC group. No major intraoperative complications or perioperative mortality occurred in any patients. CONCLUSION: In elective, noncomplicated cases, the safe posterior window (critical view of safety) principle should be implemented. However, in complicated cases where anatomic uncertainties are dominant, the performance of FF technique or LPC may decrease conversion rates to open surgery and contribute to accomplishing the laparoscopic intervention safely. PMID- 29350372 TI - Endoscopic diagnosis and treatment of biliary obstruction due to acute cholangitis and acute pancreatitis secondary to Fasciola hepatica infection. AB - In the differential diagnosis of biliary obstruction with unknown etiology, biliary fascioliasis should be considered in endemic and nonendemic regions. After diagnostic evaluation, endoscopic retrograde cholangiopancreatography (ERCP) was performed for etiological evaluation and/or treatment of biliary obstruction in five patients with a mean age of 55.8 years. Endoscopic sphincterotomy and cholangiogram revealed linear filling defects in the biliary system. Fasciola hepatica parasites were extracted using balloon and basket catheters in two and three patients, respectively. No morbidity or mortality was observed. F. hepatica infection should be considered as a differential diagnosis of biliary obstruction with unknown etiology in endemic and non-endemic regions. ERCP can be the standard diagnostic and/or therapeutic procedure in cases of biliary obstruction due to fascioliasis. Due to slippery and gel-like characteristics of the parasite, use of a basket catheter in semi-opened position may be required in case of unsuccessful extraction using a balloon catheter. PMID- 29350373 TI - Pediatric dural venous sinus thrombosis following closed head injury: an easily overlooked diagnosis with devastating consequences. AB - Dural venous sinus thrombosis (DVST) is an uncommon finding after traumatic brain injury. The diagnosis can often be initially missed, particularly if not associated with an overlying fracture. Pediatric DVST following closed head injury and without an overlying fracture is very rare, with only 20 cases reported in the literature to date. Here we present the case of a 19-month-old boy who presented with a history of trivial fall and an episode of fever. On presentation, the pediatric Glasgow Coma Scale (pGCS) score was E3V4M6, and initial brain computed tomography (CT) was normal. He was initially conservatively managed. However, subsequent CT, taken following an episode of seizure, revealed right tentorial subarachnoid hemorrhage and falx hematoma. Conservative management was continued till he started developing recurrent seizures with a decrease in pGCS scores. Repeat CT revealed sinus thrombosis that involved the posterior aspect of the superior sagittal sinus with a massive brain edema. The coagulation profile was normal, and no fracture overlying the sinus was observed. Although he underwent emergency bifrontal decompressive craniotomy, he did not recover. This study emphasizes on the importance of not missing the diagnosis of sinus thrombosis and the devastating consequences that can occur if it is overlooked. PMID- 29350374 TI - Extension of a coronary intramural hematoma after blunt chest trauma. AB - Coronary artery dissection and intramural hematoma after blunt chest trauma are rare, but life-threatening, complications. Coronary intramural hematoma extension is even rarer. A 31-year-old man was transferred to our hospital for worsening left chest pain during while he was admitted at a nearby hospital due to blunt chest trauma. Bedside echocardiography showed akinesis of the left ventricular apex and anterior wall as well as hypokinesis of the mid-to-basal anteroseptal wall and mid-to-basal lateral and posterior walls of the left ventricle. Computed tomography coronary angiography revealed intramural hematoma in the left main (LM) coronary and proximal left anterior descending (LAD) arteries. Percutaneous coronary intervention, with bare metal stent implantation from the LM coronary artery to the proximal LAD artery, was performed to treat the occlusion caused by the hematoma. After stenting, the hematoma that compressed the LM coronary artery shifted the left circumflex (LCX) artery, and the intramural hematoma developed and extended to the LCX artery. To resolve this occlusion, a drug-eluting stent was successfully implanted in the LCX artery. The patient was discharged without complications. At 2-month follow-up, he remained asymptomatic, with no recurrence of cardiovascular symptoms. Delayed chest pain after trauma should be suspected during coronary dissection, and on treatment, care must be taken to extend the hematoma. PMID- 29350375 TI - Neurological recovery after traumatic Cauda Equina syndrome due to glass fragments: An unusual case. AB - Penetrating spinal injuries with foreign bodies are exceedingly rare. To date, pathological problems due to glass fragments in the spinal canal have rarely been reported. In this report, the case presenting with a back laceration, leg pain, and leg weakness was found to have glass frag-ments in the spinal canal at the L2 L3 level by lumbar computed tomography and magnetic resonance imaging. After L2 total laminectomy and retrieval of the glass fragments, the dura was re-paired. The patient was discharged from the hospital after complete neurological recovery. In cases of spinal canal injuries due to foreign bodies, early operative decompression of the neural elements is the treatment of choice. Patients with Cauda Equina syndrome due to glass fragments have a good prognosis for functional recovery. PMID- 29350376 TI - An unexpected long-term complication of genital burn in a child: Secondary cryptorchidism. AB - Genital and perineal burns are rare and challenging injuries with serious long term complications. Involvement of the testes is a sign of severity. There is limited knowledge in the literature about the management of complications and testes involvement in genital and perineal burns. In this report, we present the case of an 8-year-old boy with secondary cryptorchidism due to burn contracture who was treated by increasing the scrotal volume by Z-plasties, skin graft, and orchidopexy. PMID- 29350377 TI - Melatonin exhibits supportive effects on oxidants and anastomotic healing during intestinal ischemia/reperfusion injury. AB - BACKGROUND: The aim of this study was to investigate the effects of melatonin on intestinal anastomosis after intestinal ischemia/ reperfusion injury (IRI). METHODS: Thirty Wistar albino rats of both sexes were divided into 3 groups: sham, control, and treatment. IRI was performed by clamping the superior mesenteric artery (SMA) for 30 minutes, followed by reperfusion. The sham rats received only manipulation of the SMA. Melatonin (10 mg/kg) was administered to the treatment group, and the control group was given a vehicle injection. Both the treatment group and the control group further underwent ileal resection of a 1-cm segment and anastomosis. On the postoperative seventh day, the anastomotic burst pressure, hydroxyproline level, histological indices of wound healing, and oxidative parameters of catalase (CAT), superoxide dismutase (SOD), total glutathione (T-GSH), and glutathione peroxidase (GSH-Px) levels were measured. A one-way analysis of variance and chi-square test were used for the categorical data. RESULTS: Melatonin treatment led to a significantly higher burst pressure (p=0.027 and p<0.001, respectively). The 2 antioxidant enzymes, CAT and SOD, were at the highest level in the sham and melatonin groups and the lowest level in the control group (p=0.001 and p=0.002, respectively). Melatonin treatment resulted in a significantly higher level of both enzymes compared with the control group (p=0.026 and 0.003, respectively). The GSHpx and total GSH levels were slightly elevated in the treated rats, but the difference was not statistically significant (p=0.205 and 0.216, respectively). Fibroblast infiltration, capillary formation, and epithelialization were significantly better in the melatonin treated animals. The granulocyte and mononuclear infiltration scores were similar between all groups. CONCLUSION: It was concluded that melatonin had marked effects on intestinal anastomotic healing during intestinal IRI. PMID- 29350378 TI - EQ-5D studies in cardiovascular diseases in eight Central and Eastern European countries: a systematic review of the literature. AB - BACKGROUND: The measurement of health-related quality of life (HRQoL) by validated generic instruments, such as EQ-5D, has become an increasingly important tool for the assessment of health care in a wide range of diagnoses. AIM: We aimed to systematically review EQ-5D literature on cardiovascular diseases in eight Central and Eastern European (CEE) countries. METHODS: A structured literature search was conducted in MEDLINE, EMBASE, Web of Science, CINAHL, PsycINFO, Cochrane Library, and the EuroQol website up to November 2016. Original cardiovascular-related studies that reported EQ-5D results were included. RESULTS: Of the 36 papers, 17 reported EQ-5D index scores. Most studies were performed in Poland (n = 24, 67%). The most common diagnosis regarding the number of publications and population size was ischaemic heart disease (n = 13, N = 6394), followed by atrial fibrillation (n = 4, N = 1052). The average EQ-5D index scores ranged from 0.61 to 0.88 and from 0.66 to 0.95 for patients before and after cardiac procedure/surgery, respectively (including angioplasty, coronary artery bypass grafting, ablation, surgical correction of septal defects, transcatheter aortic valve implantation [TAVI]). In all studies baseline scores were lower than the repeated assessments after the procedure, with the most substantial improvement of 0.24 in high-risk elderly patients after TAVI. Studies which did not assess invasive treatment reported mean EQ-5D index scores ranging from 0.18 to 0.80. CONCLUSIONS: The number of cardiovascular-related studies reporting HRQoL using EQ-5D has consistently increased in CEE countries over the past decade and is outstanding compared with other clinical fields. The EQ-5D index and EQ VAS scores varied based on the disease severity, patient characteristics, and treatment protocol. PMID- 29350379 TI - Metabolic syndrome in HIV infected adults in Poland. AB - BACKGROUND: Metabolic syndrome (MS) is usually diagnosed based on the presence of abdominal obesity, elevated blood pres-sure (BP), elevated fasting plasma glucose, high serum triglycerides (TG), and low high-density lipoprotein (HDL) cholesterol levels. Whether HIV is associated with a higher prevalence of MS than in the general population remains unclear. AIM: The aim of the study was to determine the incidence of MS in the population of HIV-infected adults and its association with clinical, virological, and biochemical features. METHODS: Two hundred and seventy HIV-infected Caucasian adult patients were enrolled in the study and evaluated based on clinical records in the years 2013-2015. RESULTS: Metabolic syndrome was diagnosed in 60 of 270 (22%) patients, 47 (24%) males and 13 (17%) females, mostly (72%) aged above 40 years. The percentage of patients with diagnosed MS in specific age groups in comparison to the general Polish population for females aged < 40 years was 7% vs. 4%, and males in the same age - 18% vs. 9%, for females aged 40-59 years - 47% vs. 24.4%, and males - 33% vs. 28.3%. Particular components of MS in the MS population were found as follows: body mass index > 30 kg/m2 in 29%, waist circumference exceeding 94 cm in men and 80 cm in woman - 87.5%, TG >= 150 mg/dL - 82%, HDL cholesterol < 40/50 mg/dL (males/females) - 42%, systolic/diastolic BP >= 130 mmHg/>= 85 mmHg - 83%, and fasting glucose > 100 mg/dL - 42%. In stepwise multivariate logistic regression analysis, age (odds ratio [OR] 1.052, 95% con-fidence interval [CI] 1.018-1.088, p = 0.003) and nadir CD4 < 350 cells/mm3 (OR 3.576, 95% CI 1.035-12.355, p = 0.04) were associated with MS. Patients with MS compared with those without this disorder had low, intermediate, high, and very high cardiovascular risk in 10% vs. 23%, 73% vs. 70%, 7% vs. 5%, and 10% vs. 2%, respectively (p = 0.006). CONCLUSIONS: Prevalence of MS in the HIV-infected population is higher than in the general Polish population. Age and low nadir CD4 were found to be associated with MS. PMID- 29350380 TI - Patients treated with bivalirudin are still at higher risk of stent thrombosis: a comprehensive meta-analysis of randomised clinical trials of bivalirudin and heparin for percutaneous coronary interventions. AB - BACKGROUND: Although the current practice guidelines recommend using both heparin and bivalirudin for percutaneous coronary interventions (PCI), the research data are ambiguous. AIM: The aim of the study was to compare the impact of bivalirudin and heparin on major clinical endpoints in PCI patients with particular emphasis on periprocedural stent thrombosis. METHODS: A total of 18 randomised clinical trials involving 41,752 subjects were included. The endpoints comprised: net adverse clinical event (NACE: death, myocardial infarction [MI], unscheduled revascularisation, major bleeding), major adverse cardiovascular event (MACE: death, MI, or stroke), and acute/subacute stent thrombosis (ST). A subanalysis for planned and provisional glycoprotein IIb/IIIa inhibitor (GPI) use with heparin was performed. Results were presented as risk ratios (RR) and 95% confidence intervals (CI). RESULTS: Bivalirudin significantly reduced NACE risk (RR 0.85, 95% CI 0.76-0.96) and increased the incidence of MI (RR 1.09, 95% CI 1.01-1.18), ST (RR 1.50, 95% CI 1.13-1.99), and MACEs (RR 1.06, 95% CI 0.99 1.13). Comparing to heparin with provisional or planned GPI use, there was higher risk of acute ST with bivalirudin (RR 2.14, 95% CI 1.01-4.56 and RR 5.53, 95% CI 2.32-13.18, respectively). Comparing to heparin and provisional GPIs, bivalirudin failed to reduce NACEs and major bleeding. However, it decreased rates of NACEs (RR 0.81, 95% CI 0.69-0.96) and major bleeding (RR 0.64, 95% CI 0.48-0.85) compared with heparin and planned GPI use. CONCLUSIONS: The advantages of bivalirudin are undoubtedly related to GPI use in the heparin arms. Bivalirudin based regimens are more beneficial when compared with heparin and planned GPI use in terms of NACE and major bleedings; this was not observed when compared to heparin and provisional GPI use. Regardless of adjunctive GPI use, stent thrombosis episodes were significantly more common in bivalirudin-treated subjects. Therefore, the safety and economic issues may urge revision of this aspect of current clinical practice and guidelines. PMID- 29350381 TI - Macrophage migration inhibitory factor knockout attenuates endotoxin-induced cardiac dysfunction in mice. AB - BACKGROUND: Accumulated evidence suggests that macrophage migration inhibitory factor (MIF) plays a key role not only in acute and chronic inflammatory diseases but also in cardiovascular disease. The cardiac dysfunction is related to lipopolysac-charide (LPS) in sepsis. AIM: This study was designed to examine whether MIF mediates LPS-induced cardiac dysfunction and address the mechanisms. METHODS: Echocardiography, immunohistochemical analysis, cell shortening/re lengthening, and intracellular Ca2+ fluores-cence evaluation were performed in whole hearts and isolated cardiomyocytes from C57 and MIF knockout mice treated with or without LPS. Reactive oxygen species and protein carbonyl formation were measured. Activation of mitogen-activated protein kinases and endoplasmic reticulum stress markers were evaluated using Western blot analysis. Human umbilical vein endothelial cells (HUVECs) were transfected with lentiviruses carrying short hairpin RNA (shRNA) to inhibit MIF. RESULTS: Echocardiography revealed that cardiac function was impaired and macrophage infiltration was increased in LPS-treated C57 mice. Peak shortening and maximal velocity of shortening/re-lengthening were significantly reduced and the duration of re lengthening was prolonged in LPS-treated C57 mice. Reactive oxygen species and protein carbonyl levels were increased in LPS-treated C57 mice. These dysfunctional changes were attenuated in MIF knockout mice that were challenged with LPS. Western blot analysis revealed that activated p-JNK, p-ERK, and endoplasmic reticulum stress protein marker expression was decreased in LPS treated MIF knockout mice. p-ERK and p-JNK levels were knocked down in MIF shRNA transfected HUVECs. CONCLUSIONS: The data collectively suggest that MIF mediates LPS-induced cardiac dysfunction in murine cardiomyocytes, which was attenuated by MIF knockout, and the therapeutic option with regard to MIF may aid the management of cardiac dysfunction in sepsis. PMID- 29350382 TI - Risk factors for adverse outcomes of patients with acute coronary syndrome: single-centre experience with long-term follow-up of treated patients. AB - BACKGROUND: For patients experiencing an acute coronary syndrome (ACS), a crucial time to assess their prognosis and to plan management is at discharge from hospital. AIM: The aim of the study was to identify risk factors of mortality during post-discharge period following a hospitalisation for ACS. METHODS: We studied 672 consecutive ACS patients hospitalised and discharged alive between 2002 and 2004. The analysis was done with respect to the type of ACS, i.e. unstable angina/non-ST-segment elevation myocardial infraction (UA/NSTEMI; n = 255) vs. ST-segment elevation myocardial infarction (STEMI; n = 417). All patients underwent coronary angiography and, if indicated, primary angioplasty (STEMI: 417 patients; UA/NSTEMI: 157 patients). The Cox proportional hazards regression model was used to evaluate the independent effect of the risk factors on the occurrence of primary endpoint, i.e. all-cause mortality during six-year follow-up. Survival status and date of death were obtained from the National Registry of Population (PESEL database). RESULTS: A total of 123 patients (18.3%) died within the post-discharge period. The multivariate analysis identified 11 highly significant independent predictors of mortality (in order of predictive strength): diabetes mellitus (all types), higher creatinine level, older age, and more frequent occurrence of: supraventricular arrhythmias during hospitalisation, peripheral artery disease, recurrent angina pectoris with documented ischaemia on electrocardiogram, male sex, prior myocardial infarction, treatment with intra aortic balloon pump counterpulsation, heart failure, and higher peak levels of creatine kinase-MB. CONCLUSIONS: The risk factors obtained from the medical history and during the hospitalisation improve the risk stratification during the post-discharge period after hospitalisation for ACS. PMID- 29350383 TI - Which position should we take during newborn resuscitation? A prospective, randomised, multicentre simulation trial. AB - BACKGROUND: Early bystander cardiopulmonary resuscitation (CPR) for cardiac arrest is crucial in the chain of survival. Cardiac arrest in infants is rare, but CPR is also performed in severe bradycardia. European Resuscitation Council and American Heart Association guidelines recommend continuing CPR until the heart muscle is sufficiently oxygenated and regains sufficient contractility and function. The most common and recommended CPR techniques that can be applied in newborns are the two-finger technique and two-thumb technique. AIM: We sought to assess the quality of CPR performed in newborns with the two-finger technique depending on the posi-tion of the rescuer during resuscitation. METHODS: This was a prospective, randomised, crossover, simulated study. It involved 93 nurses who were required to perform a two-minute CPR using the two-finger technique in three scenarios: (A) with the newborn lying on the floor; (B) on a table; and (C) with the newborn on the rescuer's forearm. The Newborn Tory(r) S2210 manikin was used to simulate a neonatal patient in cardiac arrest. The following parameters were measured: chest compression (CC) depth, CC rate, no-flow time, percentage of full release, ventilation rate, and ventilation volume, as well as the number of effective compressions and effective ventilations. RESULTS: Statistical analysis showed significant differences in CC rates between scenarios A and B (p < 0.001) and between scenarios B and C (p = 0.002). Significant differences were also observed between the median CC depth. The median per-centage of no-flow-fraction was the highest for scenario A (55%), followed by scenario B (48%), and scenario C (46%). There were significant differences between the values of no-flow fraction between scenarios A and B (p < 0.001), and between scenarios A and C (p < 0.001). The percentage of chest full releases for scenarios A, B, and C amounted to 94%, 1%, and 92%, respectively. Significant differences in the number of effective CCs between scenarios A and B (p < 0.001) as well as B and C (p < 0.001) were revealed. The median ventilation rate was highest for scenario B (13 * min-1), and lowest for scenario A (9 * min-1). The highest tidal volume was obtained in scenario A (27 mL), and the lowest in scenario C (26 mL). The most effective CPR was performed when resuscitation was carried out on the rescuer's forearm. CONCLUSIONS: The quality of CCs in newborns depends on the location of the patient and the rescuer. The optimal form of resuscitation of newborns is resuscitation on the rescuer's forearm. PMID- 29350384 TI - The importance of psychosocial factors in management of pulmonary arterial hypertension patients. PMID- 29350385 TI - Impact of previous cardiac surgery with sternotomy on clinical outcomes and quality of life after transcatheter aortic valve implantation for severe aortic stenosis. AB - BACKGROUND: Transcatheter aortic valve implantation (TAVI) has evolved as an effective treatment in patients with symptomatic severe aortic stenosis (AS) and increased operative risk. Data on the influence of previous sternotomy on the risk of TAVI are limited. AIM: We sought to investigate the effect of previous cardiac surgery with sternotomy on clinical outcomes and quality of life (QoL) after TAVI. METHODS: The study included 148 consecutive patients with symptomatic severe AS, who underwent TAVI. Baseline charac-teristics, procedural and long term clinical outcomes, and QoL assessment with the EQ-5D-3L questionnaire were compared between patients with and without previous sternotomy. RESULTS: Patients with previous sternotomy (23.0% of the population) were younger and more often male, had higher rate of previous myocardial infarction (MI; 26 [22.8%] vs. 22 [64.7%], p = 0.001), and lower median left ventricular ejection frac-tion (60.0% [50.0-65.0] vs. 50.0% [42.0-60.0], p = 0.004). Periprocedural risk measured with the Logistic Euroscore and the Society of Thoracic Surgeons scale was comparable in both groups. There were no differences in 30-day and 12-month all-cause mortality between the groups with and without sternotomy (10 [8.8%] vs. 2 [5.9%], p = 0.7; odds ratio [OR] adjusted for age/sex/previous MI, 0.56, 95% confidence interval [CI] 0.10-3.29; for 12-month mortality adjusted OR 0.19, 95% CI 0.04 0.99). At the longest available follow-up, mortality was higher in patients without sternotomy (30 [26.3%] vs. 3 [8.8%], p = 0.03; adjusted OR 0.10, 95% CI 0.02-0.42). Similar rates of other complications after TAVI were noted. No differences in the EQ-5D-3L questionnaire at baseline and 12-month follow-up were confirmed. CONCLUSIONS: TAVI seems to be a safe and effective technique for the treatment of severe AS in patients with previous cardiac surgery. PMID- 29350386 TI - Comparison of clinical characteristics of real-life atrial fibrillation patients treated with vitamin K antagonists, dabigatran, and rivaroxaban: results from the CRAFT study. AB - BACKGROUND: The first-line drugs for the treatment of non-valvular atrial fibrillation (AF) are non-vitamin K antagonist oral anticoagulants (NOACs), which are preferred over vitamin K antagonists (VKAs). There is some evidence that there are dis-crepancies between everyday clinical practice and the guidelines. AIM: The study aimed to compare the characteristics of patients on VKAs, dabigatran, and rivaroxaban in everyday practice (i.e. baseline characteristics, drug doses, risk factors for bleeding and thromboembolic events). Additionally, we assessed the frequency of prescription of different oral anticoagulants (OACs) in recent years. METHODS: This study consisted of data from the multicentre CRAFT (MultiCentre expeRience in AFib patients Treated with OAC) study (NCT02987062). This was a retrospective analysis of hospital records of AF patients (hospitalised in the years 2011-2016) treated with VKAs (acenocoumarol, warfarin) and NOACs (dabigatran, rivaroxaban). A total of 3528 patients with non-valvular AF were enrolled in the CRAFT study. RESULTS: The total cohort consisted of 1973 patients on VKA, 504 patients on dabigatran, and 1051 patients on rivaroxaban. Patients on rivaroxaban were older (70.5 +/- 13.1 years) and more often female (47.9%), compared with those on VKAs (67.0 +/- 12.8 years, p < 0.001; 35.5%, p < 0.001) and on dabigatran (66.0 +/- 13.9 years, p < 0.001; 38.9%, p = 0.001). Among NOACs, patients with persistent and permanent AF were more likely to receive rivaroxaban (54.7% and 73.4%, re-spectively) than dabigatran (45.3%, p < 0.001 and 26.6%, p = 0.002, respectively). Patients on rivaroxaban had higher risk of thromboembolic events (CHA2DS2VASc 3.9 +/- 2.0, CHADS2 2.2 +/- 1.4) than those on VKAs (3.3 +/- 2.0, 1.9 +/- 1.3) and on dabigatran (3.1 +/- 2.0, 1.8 +/- 1.3). Patients on rivaroxaban had also a higher rate of prior major bleeding (11.2%) than those on VKAs (6.7%, p < 0.001) and on dabigatran (7.3%, p = 0.02). Patients on lower doses of dabigatran and rivaroxaban had a significantly higher risk of thromboembolic and bleeding events. Use of VKAs in the year 2011 was reported in over 96% of patients on OACs, but this proportion decreased to 34.6% in 2016. In the last analysed year (2016) AF patients were treated mainly with NOACs - dabigatran (24.2%) and rivaroxaban (41.3%). CONCLUSIONS: The prescription of VKAs declined significantly after the introduction of NOACs. Patients treated with different OACs demonstrated a distinct baseline clinical profile. The highest risk of thromboembolic events and incidence of major bleedings was observed in patients on rivaroxaban, in comparison to patients on VKAs and dabigatran. Among NOACs, patients treated with lower doses of dabigatran and rivaroxaban were older and had a significantly higher risk of thromboembolic and bleeding events. PMID- 29350387 TI - Clinical anatomy of human heart atria and interatrial septum - anatomical basis for interventional cardiologists and electrocardiologists. Part 1: right atrium and interatrial septum. PMID- 29350388 TI - Chronic statin treatment is a predictor of pre-interventional infarct-related artery patency in patients with ST elevation myocardial infarction treated with percutaneous coronary intervention. AB - BACKGROUND: Beyond lipid-lowering effects, early statin treatment has beneficial effects on prognosis after acute coronary syndrome. Infarct-related artery (IRA) patency before percutaneous coronary intervention (PCI) is known to be a strong pre-dictor of improved clinical outcome. AIM: We aimed to investigate the effects of chronic statin treatment before admission on IRA patency after myocardial infarction. METHODS: In this study, 938 ST elevation myocardial infarction (STEMI) patients admitted to the hospital within the first 12 h of symptom onset were prospectively enrolled (male, n = 682; female, n = 256; mean age 58.6 +/- 12.4 years). All patients underwent emergent primary PCI. Patients were divided into two groups based upon angiographic IRA patency. Impaired IRA patency was defined as Thrombolysis In Myocardial Infarction (TIMI) grade 0 and 1 flow (non patent IRA group). Angiographic IRA patency was defined as TIMI 2 and 3 flow (patent IRA group). RESULTS: Previous statin usage was more frequent in the patent IRA group (n = 138; 71.9%), than in the non-patent IRA group (n = 110; 14.7%; p < 0.001). Pre-PCI IRA patency was independently associated with body mass index (odds ra-tio [OR] = 1.087, 95% confidence interval [CI] 1.005-1.176, p < 0.001), previous chronic statin use (OR 0.065, 95% CI 0.043-0.098, p = 0.039), ejection fraction (OR 1.041, 95% CI 1.018-1.064, p < 0.001), and SYNTAX score (OR 0.927, 95% CI 0.899-0.957, p < 0.001) in multivariate logistic regression analysis. CONCLUSIONS: Chronic pre-treatment with statins is a significant predictor of the IRA patency in patients with STEMI. PMID- 29350389 TI - Three-dimensional visualisation of coronary sinus ostium from the inside right atrium perspective. AB - BACKGROUND: There is no in vivo method of coronary sinus visualisation from the right atrium perspective. AIM: The objective of the study was to create a cardiac computed tomography (CT) angiography-based method of visualising the coronary sinus ostium and the Thebesian valve from the inside right atrium perspective. METHODS: In 78 consecutive patients, a cardiac CT angiography (Aquilion 64, Toshiba) with retrospective gating (slice 0.5 mm) was performed. Raw data were reconstructed on Vitrea 2 workstations (Vital Images). In order to create the three-dimensional (3D) coronary sinus visualisation from the "inside view" perspective, patented "Fly Through" algorithms were used, and the anatomical positions on the multiplanar reconstruction images were marked. A dedicated, Likert-based five-point scale was developed and used to evaluate the quality of the visualisations. RESULTS: The average quality of the visualisations of the coronary sinus ostium in two-dimensional multiplanar reconstruction images was good (4.17 +/- 0.85 points) and was clinically interpretable in all cases. The image quality of the "inside view" 3D images was 3.61 +/- 1.12 points. In 57.7% of cases we obtained high scores (4 and 5 points). The main diameter was 10.72 +/ 2.48 mm, and the entrance angle of the coronary sinus into the right atrium was 103.76 +/- 10.71 degrees . CONCLUSIONS: Cardiac CT angiography is a useful method that permits the coronary sinus ostium and Thebesian valve to be visualised in vivo from the inside of the right atrium in a comparable manner. PMID- 29350390 TI - Dual antiplatelet therapy is safe and efficient after left atrial appendage closure. AB - BACKGROUND: Despite results of the PROTECT AF trial, many patients undergoing left atrial appendage closure (LAAC) have unconditional contraindications to warfarin. AIM: We sought to investigate whether double antiplatelet therapy (DAPT) is safe in patients after LAAC. METHODS: Forty-four consecutive patients (22 males, mean age 74 +/- 7.8 years) with non-valvular atrial fibrillation (NVAF) underwent LAAC procedure using a Watchman device followed by DAPT (75 mg/d aspirin and 75 mg/d clopidogrel). After the procedure and during 98 days' follow up including transoesophageal echocardiography, peri-procedural complications and clinical outcomes were investigated. RESULTS: Mean CHA2DS2-VASc score was 4.9 +/- 1.5 and mean HAS-BLED score was 3.6 +/- 0.8. The main LAAC indication was contraindication to anticoagulation reflected by HAS-BLED score >= 3 observed in 95.5% cases (among them history of bleeding in 38 patients, 90.5%). 36.4% of patients have history of stroke or transient ischaemic attack. The procedure was successful in 97.7%. Peri-procedural complications were tamponade (2.3%) and one death (2.3%) unrelated to the procedure with no bleeding or vascular complications. During follow-up neither stroke nor bleeding were observed, whereas two device related thrombi and two unrelated deaths occurred. CONCLUSIONS: LAAC followed by DAPT seems to be a safe and efficient alternative for stroke prevention in patients with NVAF who have contraindications to anticoagulation therapy. This strategy may provide a significant reduction of events such as stroke and bleeding versus the score-predicted rate. PMID- 29350391 TI - Polish single-centre follow-up of subcutaneous implantable cardioverter defibrillator (S-ICD) systems implanted for the prevention of sudden cardiac death. AB - BACKGROUND AND AIM: Subcutaneous implantable cardioverter-defibrillator (S-ICD) is an effective and modern tool used to protect patients at risk of sudden cardiac death (SCD) from potentially life-threatening ventricular arrhythmias. The first S-ICD systems were implanted in Poland in 2014, but since that time the national experience with that therapy has been limited. Our analysis summarises the single-centre experience at the Department of Cardiology and Electrotherapy of the Medical University of Gdansk with the use of S-ICD from the year 2014 to 2017. METHODS AND RESULTS: The S-ICD therapy was used in 12 patients (five male, seven female, mean age 57.2 +/- 12.5 years), in eight of them for the secondary prevention of SCD. No surgical complications of implantation procedures were observed during the perioperative hospitalisation nor during follow-up. During the mean follow-up of 14 +/- 13 months we observed the appropriate function of the systems and a ventricular fibrillation episode successfully terminated by the device in one patient, two cases of S-ICD sensing problems (one of which led to inadequate intervention of the device), and an episode of atrial fibrillation also leading to inadequate intervention in another patient. CONCLUSIONS: S-ICD, being an effective and safe method used to treat patients at risk of SCD, may be safely and successfully introduced into clinical practice in centres new to that field. The number of complications during the initial experience and introduction of that method may be kept low if the operating team is experienced enough in cardiac electrotherapy. PMID- 29350392 TI - Diagnostic and prognostic micro-RNAs in ischaemic stroke due to carotid artery stenosis and in acute coronary syndrome: a four-year prospective study. AB - BACKGROUND: Circulating microRNAs (miRs) levels are potentially important diagnostic and prognostic biomarkers in acute coronary syndrome (ACS) or cerebral ischaemic events (CIE) resulting from internal carotid artery stenosis (ICAS). AIM: This four-year prospective study aimed to compare the levels of circulating miRs in ACS vs. CIE patients, and investigate miRs potentially associated with risk of recurrent cardiovascular events. METHODS: The circulating miRs levels (miR-1-3p, miR-16-5p, miR-34a-5p, mir-122-5p, miR-124-3p, miR-133a-3p, miR-133b, miR-134-5p, miR-208b-3p, miR-375, and miR-499-5p) were compared in 43 (34 men, 57.6 +/- 10.1 years) patients with ACS, and in 71 (47 men, 69.5 +/- 9.6 years) with CIE due to ICAS. A four-year prospective evaluation of miRs associated with risk of cardiovascular death (CVD), myocardial infarction (MI), CIE, or all (CVD/MI/CIE) was performed. RESULTS: In ACS vs. CIE patients, the levels of miR 124-3p (p < 0.001), miR-134-5p (p = 0.012), miR-208b-3p (p < 0.001), miR-34a-5p (p < 0.001), and miR-499-5p (p < 0.001) were higher, while levels of miR-16-5p (p < 0.001) and miR-122-5p (p < 0.001) were lower. Levels of miR-1-3p (p = 0.195), miR-133a-3p (p = 0.333), miR-133b (p = 0.056), and miR-375 (p = 0.055) were non statistically different. During follow-up (median 57 months, Q1-Q3: 54-60), CVD/MI/CIE occurred in 23 subjects, including eight CVDs, five non-fatal CIEs, and 10 non-fatal MIs. The multivariate Cox proportional hazard analysis (relative risk [RR]; 95% confidence interval [CI]) revealed that miR-208b-3p (1.225; 1.092 1.375), miR-34a-5p (0.963; 0.935-0.992), and miR-499-5p (0.077; 0.025-0.239) were independently associated with risk of CVD/MI/CIE, as well as risk of each event. Furthermore, miR-133b (1.009; 1.003-1.015) was associated with risk of CVD. CONCLUSIONS: This study shows that although most investigated miRs levels differ significantly between patients with ACS and CIE, similar levels of circulating miR-1-3p, miR-133a-3p, miR-133b, and miR-375 were observed; furthermore, we identified several common miRs as possible risk factors for recurrent cardiovascular events. PMID- 29350393 TI - Is it possible to improve compliance in hypertension and reduce therapeutic inertia of physicians by mandatory periodic examinations of workers? AB - BACKGROUND: Due to high prevalence, insufficient recognition, and ineffective treatment, hypertension (HT) still remains a major medical and socio-economic problem. There is a real necessity to develop effective prophylaxis for cardiovascular disorders (CVD), based on strategies that support compliance during long-term therapy. The Polish scheme of occupational health services with mandatory periodical employee check-ups creates a unique opportunity for effective HT prophylaxis. As a result, visiting a doctor is required not only due to health ailments but also by law, which is especially important for those feeling well. It enables an improvement in tertiary prevention, including actions taken not only by the doctors of the occupa-tional health services, but also by the physicians in charge of treating the patients. AIM: Evaluation of the usefulness of mandatory health check-ups of employees concerning frequency of diagnosis and im-provement of treatment outcomes of HT. METHODS: The study group comprised 1010 Polish workers referred by their employers for mandatory medical examinations. All of the study participants filled in a questionnaire focused on self-assessment of their health, current blood pressure (BP) mea-surements, and in cases where HT had been previously detected - compliance with medical recommendations. Then in the doctor's office BP measurements were taken twice. Workers who fulfilled a criterion indicating a need for intervention were educated on optimal diet, physical activity, and risk factors for CVD. They also received medical instructions for three-step action. The first recommendation: measure BP three times a day for one week and record the results. The second: visit a gen-eral practitioner (GP) for a professional assessment of those results. The third: re-visit the occupational health physician within three months. The criterion for intervention was prior HT and a mean of two BP measurements >= 180/110 mmHg - in each case, or >= 140/90 mmHg - in the case of occupational exposure to risk factors for CVD. RESULTS: The mean age of the study participants was 41.7 years (similar in both genders). A previous diagnosis of HT was declared by 20.1% of patients. 11% of patients involved in the intervention did not comply with medical advice. The current HT therapy of all of the subjects with HT (100% of those with abnormal BP, who visited their GP) was modified. CONCLUSIONS: Prophylactic medical check-ups of workers gives improved compliance and medical surveillance of HT in patients with an uncontrolled clinical course of this disease. Obligations and periodic examinations encourage both patients and physicians to improve compliance and reduce the risk of therapeutic inertia. PMID- 29350394 TI - Genetic variants in a Polish population of patients with pulmonary arterial hypertension: sequencing of BMPR2, ALK1, and ENG genes. AB - BACKGROUND: Pulmonary arterial hypertension (PAH) is a rare disease with a very serious prognosis. It seems that mutations in genes related to transforming growth factor-b signalling pathway are often related to the development of the disease. No study covers this problem in a Polish population. AIM: To screen for genetic mutations in a Polish cohort of patients with pulmonary hypertension, especially with idiopathic PAH, treated in a single hospital in Poland. METHODS: DNA sequencing method was used. Samples from 50 patients with pulmonary hypertension were screened for mutations in type 2 bone morphogenetic protein receptor of the transforming growth factor-b superfamily gene (BMPR2). Samples from 20 patients with idiopathic PAH (11 men, mean age 55 years) were also screened for mutations in activin A receptor-like type 1 gene (ALK1) and endoglin gene (ENG). RESULTS: No genetic variations were found for the BMPR2 gene. In all 20 samples from idiopathic pulmonary hypertension patients we found heterozygosity of single nucleotide polymorphism (SNP) rs 372023206 in ALK1 gene. Three samples from these patients showed variations of ENG gene: we found one sample with heterozygosity of SNP rs 200525684, one with heterozygosity of SNP rs 3739817, and one with both. CONCLUSIONS: We detected benign polymorphisms or genetic variants of unknown importance. It is possible that the Polish population of PAH patients differs from the previously described populations of other countries in terms of the frequency and importance of mutations in BMPR2, ALK1 and ENG genes. PMID- 29350395 TI - Early results of aortic arch reconstruction and bilateral pulmonary artery banding: modification of the Norwood operation for treatment of hypoplastic left heart syndrome. AB - BACKGROUND: In the period from 2003 to the end of 2015, 96 Norwood I procedures were performed in the Paediatric Heart Surgery Department in Katowice, Poland, in children with hypoplastic left heart syndrome (HLHS). AIM: This paper presents a retrospective analysis of early surgical results. METHODS: The patients consisted of two groups: group I included 59 children operated on in the years 2003-2012, in whom the stage I Norwood procedure with the Sano modification was performed with the aortic arch reconstructed by use of a ho-mogenous pulmonary artery patch or a bovine pericardial patch. Group II included 37 children after our modification of the Norwood I procedure, in which the aortic arch was reconstructed with an extracellular matrix patch and bilateral pulmonary artery banding was done. RESULTS: Aortic cross-clamping time was significantly shorter in group II (mean 52; range 38-62 min) than in group I (mean 57; range 39-72 min; p < 0.009). Eighteen (30.5%) children in group I and six (16.2%) in group II died. Although this dif-ference did not reach statistical significance (p = 0.12), it suggested that improved outcomes with the modified procedure are possible. The cause of death in group I was significantly more frequently due to massive postoperative bleeding (n = 6; 33.3%) than in group II (n = 1; 16.7%; p = 0.046). CONCLUSIONS: The introduction of this new surgical technique reduced postoperative bleeding rates, shortened the operation time, and might improve the mortality rate in the first-stage surgical treatment of children with HLHS. PMID- 29350396 TI - Tobacco regulation as a paradigm for advancing regulatory science in dermatology. PMID- 29350397 TI - The burden of non-melanoma skin cancers in Auckland, New Zealand. AB - BACKGROUND/OBJECTIVES: As the New Zealand Cancer Registry does not require mandatory reporting of non-melanoma skin cancers (NMSC), basal cell carcinomas (BCC) and squamous cell carcinomas (SCC), the clinical burden of these diseases is unknown. METHODS: A retrospective review of all patients with histopathology performed allowed us to estimate invasive BCC and SCC in the Auckland region in 2008 (population 1.44 million). RESULTS: During this period, a total of 21 236 NMSC were diagnosed among 13 996 patients, consisting of 5611 SCC lesions (26%) and 15 525 (74%) BCC. The Auckland incidence rates per 100 000 were 425 for SCC and 1177 for BCC. The overall rate of NMSC per 100 000 was 1906.5 (standardised to the census data of Australia 2001); 1385 for BCC and 522 for SCC. Using published data on incidence trends and population growth, we estimate that 29 000 33 000 NMSC would have been excised in Auckland in 2016, and 78 000-87 000 in New Zealand. CONCLUSION: Auckland has the highest reported incidence of invasive NMSC in the world. We believe that high-risk cutaneous SCC and complex BCC should be recorded. Our study provides information for clinicians and health economists on the scale of the problem. PMID- 29350398 TI - Use of Computational Functional Genomics in Drug Discovery and Repurposing for Analgesic Indications. AB - The novel research area of functional genomics investigates biochemical, cellular, or physiological properties of gene products with the goal of understanding the relationship between the genome and the phenotype. These developments have made analgesic drug research a data-rich discipline mastered only by making use of parallel developments in computer science, including the establishment of knowledge bases, mining methods for big data, machine-learning, and artificial intelligence, (Table ) which will be exemplarily introduced in the following. PMID- 29350399 TI - Biological functions of Elabela, a novel endogenous ligand of APJ receptor. AB - The G protein-coupled receptor APJ and its cognate ligand, apelin, are widely expressed throughout human body. They are implicated in different key physiological processes such as angiogenesis, cardiovascular functions, fluid homeostasis, and energy metabolism regulation. Recently, a new endogenous peptidic ligand of APJ, named Elabela, has been identified and shown to play a crucial role in embryonic development. In addition, increasing evidences show that Elabela is also intimate associated with a large number of physiological processes in adulthood. However, a comprehensive summary of Elabela has not been reported to date. In this review, we provide an overview of the biological functions of Elabela. Collectively, Elabela, a potential therapeutic peptide, exerts diverse biological functions in both embryos and adult organisms, such as dysontogenesis, self-renewing of human embryonic stem cells, endoderm differentiation, heart morphogenesis, cardiac dyfunctions, blood pressure control, angiogenesis, blood pressure control, regulation of food and water intake, bone formation, and kidney diseases. PMID- 29350400 TI - Feasibility of Enteral Protein Supplementation in Critically Ill Children. AB - BACKGROUND: We describe the protein type and concentration in standard enteral nutrition (EN) formulas and the effect of protein supplementation on the osmolality of standard formulas. We also aimed to examine factors associated with optimal protein delivery in critically ill children. METHODS: Protein content and other characteristics of pediatric EN formulas used worldwide were recorded. Factors associated with achievement of recommended protein delivery and tolerance of protein-supplemented formulas were recorded prospectively in a cohort of critically ill children. A range of protein supplement doses was added to 2 standard formulas and water, and the osmolality was recorded by cryoscopy in a bench experiment. RESULTS: We reviewed 125 formulas used in a multicenter study including sites from >13 countries. A majority of the EN formulas (73.6%) were polymeric, with a nonprotein calorie/nitrogen ratio of 182 +/- 66 and protein content of 3.53 +/- 2.00 g/100 mL. In the cohort of critically ill children, 28.5% achieved protein intake goal within 4 days, with no intolerance. In addition to optimal protein prescription (P < 0.001), protein supplementation (P = 0.018) and early EN initiation (P = 0.006) were associated with significantly higher odds of achieving goal protein intake. Formulas supplemented with up to 8 g/100 mL polymeric protein had osmolality <450 mOsm/kg. CONCLUSIONS: The protein content of current pediatric formulas may be inadequate to meet the needs of critically ill children. Protein supplementation of formulas allows early achievement of goal and is likely to be safe.). PMID- 29350401 TI - Neurodevelopmental outcome in very preterm and very-low-birthweight infants born over the past decade: a meta-analytic review. AB - AIM: The purpose of this systematic review was to provide an up-to-date global overview of the separate prevalences of motor and cognitive delays and cerebral palsy (CP) in very preterm (VPT) and very-low-birthweight (VLBW) infants. METHOD: A comprehensive search was conducted across four databases. Cohort studies reporting the prevalence of CP and motor or cognitive outcome from 18 months corrected age until 6 years of VPT or VLBW infants born after 2006 were included. Pooled prevalences were calculated with random-effects models. RESULTS: Thirty studies were retained, which included a total of 10 293 infants. The pooled prevalence of cognitive and motor delays, evaluated with developmental tests, was estimated at 16.9% (95% confidence interval [CI] 10.4-26.3) and 20.6% (95% CI 13.9-29.4%) respectively. Mild delays were more frequent than moderate-to-severe delays. Pooled prevalence of CP was estimated to be 6.8% (95% CI 5.5-8.4). Decreasing gestational age and birthweight resulted in higher prevalences. Lower pooled prevalences were found with the Third Edition of the Bayley Scales of Infant Development than with the Second Edition. INTERPRETATION: Even though neonatal intensive care has improved over recent decades, there is still a wide range of neurodevelopmental disabilities resulting from VPT and VLBW births. However, pooled prevalences of CP have diminished over the years. WHAT THIS PAPER ADDS: The Bayley Scales of Infant and Toddler Development, Third Edition reported lower pooled prevalences of motor and cognitive delays than the Second Edition. The pooled prevalence of cerebral palsy in infants born extremely preterm was reduced compared with previous meta-analyses. PMID- 29350402 TI - Effectiveness and safety of original and generic sofosbuvir for the treatment of chronic hepatitis C: A real world study. AB - We report the first real-world prospective multicenter cohort study that evaluated the effectiveness and safety of original or generic sofosbuvir-based regimens in patients with chronic hepatitis C in Latin America. The main endpoints were assessment of sustained virological response and serious adverse events rates. A total of 321 patients with chronic hepatitis C treated with the following regimens were included: sofosbuvir plus daclatasvir for 12 (n = 34) or 24 (n = 135) weeks, sofosbuvir plus daclatasvir plus ribavirin for 12 (n = 84) or 24 (n = 56) weeks, or sofosbuvir plus ribavirin for 12 (n = 8) or 24 (n = 2) weeks. Patients received either original sofosbuvir (Sovaldi(r) , Gilead Sciences, n = 135) or generic sofosbuvir (Probirase(r) , Laboratorios RICHMOND, n = 184) which were randomly assigned by the National Ministry of Health. Overall, 292 (91%) patients had cirrhosis, 136 (42%) were treatment experienced, and 240 (75%) genotype 1. The overall sustained virological response was 90% (95% CI 86 93%); 91% (95% CI 84-95%) in patients who received Sovaldi(r) , and 89% (95% CI 84-93%) in patients who received Probirase(r) . Anemia was the most common adverse event and was reported in 52 (17%) patients. Bacterial infection, gastrointestinal bleeding, worsening of ascites or encephalopathy occurred in less than 5% of the patients. During the study, seven (2%) patients died, four of whom died of cirrhosis-related complications. In summary, we observed similar sustained virological response rates than prior studies, both in patients who received Sovaldi(r) or Probirase(r) . Serious adverse events were infrequent, in line with prior studies that included patients with cirrhosis treated with protease-inhibitor-free regimes. PMID- 29350403 TI - Influence of Contrast Administration on Computed Tomography-Based Analysis of Visceral Adipose and Skeletal Muscle Tissue in Clear Cell Renal Cell Carcinoma. AB - BACKGROUND: Computed tomography (CT) scans are being utilized to examine the influence of skeletal muscle and visceral adipose quantity and quality on health related outcomes in clinical populations. However, little is known about the influence of contrast administration on these parameters. METHODS: Precontrast, arterial, and 3-minute postcontrast CT images of 45 patients with clear cell renal cell carcinoma were downloaded from The Cancer Imaging Archive and retrospectively analyzed for visceral adipose cross-sectional area (CSA) and density, and muscle CSA and density at the third lumbar vertebrae. Low muscle CSA index was defined as <=38.9 cm2 /m2 for women and <=55.4 cm2 /m2 for men. Low muscle density was defined as <41 Hounsfield units (HU) for body mass index (BMI) <24.9 kg/m2 and <33 HU for BMI >=25.0 kg/m2 . RESULTS: In both the arterial and 3 minute phases, contrast administration decreased visceral adipose CSA (-20.9 and 20.9 cm2 ; P < .001) and increased visceral adipose density (4.8 and 5.8 HU; P < .001), relative to precontrast images. Muscle CSA index marginally increased in the arterial (0.6 cm2 /m2 ; P = .007) and 3-minute phases (0.8 cm2 /m2 ; P < .001). This likely represents clinically insignificant changes because it does not alter the identification of low muscle CSA (44.4% vs 42.2%; P = 1.00). Skeletal muscle density increased in the arterial (6.4 HU; P < .001) and 3-minute phases (8.7 HU; P < .001), which altered the identification of low muscle density (6.7% vs 31.1%; P < .001). CONCLUSIONS: Future analyses should consider the phase of contrast during CT imaging because it may alter the interpretations of several parameters. PMID- 29350404 TI - Gastrointestinal protists and helminths of habituated agile mangabeys (Cercocebus agilis) at Bai Hokou, Central African Republic. AB - Infectious diseases including those caused by parasites can be a major threat to the conservation of endangered species. There is thus a great need for studies describing parasite infections of these species in the wild. Here we present data on parasite diversity in an agile mangabey (Cercocebus agilis) group in Bai Hokou, Dzanga-Sangha Protected Areas (DSPA), Central African Republic. We coproscopically analyzed 140 mangabey fecal samples by concentration techniques (flotation and sedimentation). Agile mangabeys hosted a broad diversity of protistan parasites/commensals, namely amoebas (Entamoeba spp., Iodamoeba buetschlli), a Buxtonella-like ciliate and several parasitic helminths: strongylid and spirurid nematodes, Primasubulura sp., Enterobius sp., and Trichuris sp. Importantly, some of the detected parasite taxa might be of potential zoonotic importance, such as Entamoeba spp. and the helminths Enterobius sp., Trichuris sp., and strongylid nematodes. Detailed morphological examination of ciliate cysts found in mangabeys and comparison with cysts of Balantioides coli from domestic pigs showed no distinguishing structures, although significant differences in cyst size were recorded. Scanning or transmission electron microscopy combined with molecular taxonomy methods are needed to properly identify these ciliates. Further studies using molecular epidemiology are warranted to better understand cross-species transmission and the zoonotic potential of parasites in sympatric non-human primates and humans cohabiting DSPA. PMID- 29350406 TI - Cutaneous hyperpigmentation induced by apremilast. PMID- 29350405 TI - Reactive oxygen species-induced parthanatos of immunocytes by human cytomegalovirus-associated substance. AB - Previous studies have examined various immune evasion strategies of human cytomegalovirus (HCMV) to gain understanding of its pathogenesis. Although the mechanism that underlies immunocyte destruction near HCMV-infected lesions has yet to be established, it is here shown that substances produced by HCMV-infected cells induce death in several types of immunocytes, but not in fibroblasts or astrocytomas. These substances contain HCMV proteins and were termed HCMV associated insoluble substance (HCMVAIS). The mechanism by which HCMVAIS induces cell death was characterized to improve understanding the death of immunocytes near HCMV-infected lesions. HCMVAIS were found to trigger production of intracellular nicotinamide adenine dinucleotide phosphate oxidase-derived reactive oxygen species (ROS), resulting in cell death, this effect being reversed following treatment with ROS inhibitors. Cell death was not induced in splenocytes from NOX-2 knockout mice. It was hypothesized that DNA damage induced by oxidative stress initiates poly ADP-ribose polymerase-1 (PARP-1)-mediated cell death, or parthanatos. HCMVAIS-induced cell death is accompanied by PARP-1 activation in a caspase-independent manner, nuclear translocation of apoptosis inducing factor (AIF), and DNA fragmentation, which are typical features of parthanatos. Treatment with an AIF inhibitor decreased the rate of HCMVAIS induced cell death, this being confirmed by hematoxylin and eosin staining; cell death in most HCMV-positive foci in serial section samples of a large intestine with HCMV infection was TUNEL-positive, cleaved caspase 3-negative and CD45 positive. Taken together, these data suggest that HCMV inhibits local immune responses via direct killing of immunocytes near HCMV-infected cells through ROS induced parthanatos by HCMVAIS. PMID- 29350407 TI - Recent progress in the antiviral activity and mechanism study of pentacyclic triterpenoids and their derivatives. AB - Viral infections cause many serious human diseases with high mortality rates. New drug-resistant strains are continually emerging due to the high viral mutation rate, which makes it necessary to develop new antiviral agents. Compounds of plant origin are particularly interesting. The pentacyclic triterpenoids (PTs) are a diverse class of natural products from plants composed of three terpene units. They exhibit antitumor, anti-inflammatory, and antiviral activities. Oleanolic, betulinic, and ursolic acids are representative PTs widely present in nature with a broad antiviral spectrum. This review focuses on the recent literatures in the antiviral efficacy of this class of phytochemicals and their derivatives. In addition, their modes of action are also summarized. PMID- 29350408 TI - Calibration and non-orthogonality correction of three-axis Hall sensors for the monitoring of MRI workers' exposure to static magnetic fields. AB - A Magnetic Resonance Imaging (MRI) scanner uses three different electromagnetic fields (EMF) to produce body images: a static permanent magnetic field (MF), several pulsed magnetic gradients, and a radiofrequency pulse. As a result, any occupation that includes an MRI exposes workers to a strong MF. The World Health Organization has now given the monitoring of occupational EMF exposure a high priority. One design for a low-cost, compact MF exposure monitor (" MR exposimeter ") uses a set of three orthogonally assembled Hall sensors. However, at such a strong EMF exposure intensity, the non-linearity and non-orthogonality (misalignment between the three Hall sensors) have an impact on the accuracy of EMF measurement. Therefore, a sensor characterization was performed in order to link Hall-effect output voltage to MF intensity. The sensor was then calibrated using an orthogonalization matrix and an offset vector. For each sensor configuration, the matrix and vector parameters were optimized with a calibration set generated by the movement of a three-axis sensor inside homogeneous MF areas. Once calibrated, the sensor was tested at different MF intensities and returned accuracy improvements. This calibration procedure was tested on synthetic data and performed on experimental data. The calibration parameters can be easily reused by the user, and their stability could be used as a quality control sensor. Finally, real-time monitoring test for static MF exposure was completed and validated on an MRI worker during a typical working day. Bioelectromagnetics. 39:108-119, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29350409 TI - Comparison of lesional skin c-KIT mutations with clinical phenotype in patients with mastocytosis. AB - BACKGROUND: Activating c-KIT mutations cause abnormal mast cell growth and appear to play a role in mastocytosis. However, the correlation of c-KIT mutations with disease phenotypes is poorly characterized. AIM: To evaluate the correlation of c KIT mutations with clinical presentations and laboratory findings. METHODS: Total cellular RNA was isolated from the skin lesions of 43 adults and 7 children with mastocytosis, and PCR amplicons of cDNA were sequenced for c-KIT mutations. RESULTS: The most common activating mutation, KIT-D816V, was identified in 72% of adults and 57% of children. Additional activating mutations, namely, V560G and the internal tandem duplications (ITDs) 502-503dupAY, were detected in 12% of adults and 8% of children. V560G occurred more commonly in our patients than previously reported, and it appeared to be associated with more advanced disease. Otherwise, the presence or absence of activating mutations did not correlate with skin lesion morphology, disease extent or total serum tryptase levels. Four adults had expression only of wild-type KIT, while two others had expression of a truncated KIT lacking tyrosine kinase activity; yet these patients were clinically indistinguishable from those patients with activating c-KIT mutations. CONCLUSIONS: Activating c-KIT mutations exist in a significant portion of patients with mastocytosis, but not all patients showed expression of these mutations. Except for V560G, the presence or absence of activating c-KIT mutations did not predict the extent of disease. These observations suggest that although activating c-KIT mutations are associated with mast cell growth, other genes probably play a role in the cause of mastocytosis. PMID- 29350410 TI - Misidentification of recombinant hepatitis C virus leading to treatment failure with direct acting antivirals. AB - The use of new Direct Acting Antivirals, specific of HCV, has greatly improved the HCV treatment. Most of the DAA are specific of HCV genotypes. Genotyping methods may target different regions of the HCV genome, though only the whole genome sequencing could confirm the correct genotype. The present study describes the virological investigation of a treatment failure due to the false identification of an unusual 2k/1b recombinant HCV form. It describes the sequencing methods, and the similarity analysis of the sequences to different genotype query sequences, to identify the recombination breakpoint. PMID- 29350411 TI - Goals and practicalities of immunoblotting and immunohistochemistry: A guide for submission to the British Journal of Pharmacology. PMID- 29350412 TI - Surgical repair of propagating condylar fractures of the third metacarpal/metatarsal bones with cortical screws placed in lag fashion in 26 racehorses (2007-2015). AB - BACKGROUND: Despite the recommendation of plate fixation for propagating condylar fractures of the third metacarpal (McIII) or third metatarsal bone (MtIII), lag screw fixation can be a viable surgical option. OBJECTIVES: To evaluate short term outcome and long-term racing performance of horses that underwent lag screw fixation of long condylar fractures of the McIII/MtIII. STUDY DESIGN: Retrospective case series. METHODS: Medical records, post-surgical racing performance and outcome of 26 horses with propagating fractures of the medial and/or lateral condyle of McIII/MtIII were reviewed. Medical information included were age, breed, sex, physical examination at admission, circumstances of fracture, radiographic evaluation, anaesthesia and recovery records, surgical and post-operative management, as well as complications. Outcome included racing data and information from telephone interviews. RESULTS: Twenty-six horses (9 Standardbreds and 17 Thoroughbreds) were admitted with a long condylar fracture of the McIII/MtIII. Fore- and hindlimbs were equally represented with the left hindlimb being more frequently involved. Most of the fractures had a spiralling component (76%) and four (15%) were comminuted. Fifteen (58%) horses raced post surgery including nine Standardbreds (100%) and six Thoroughbreds (35%). Twelve of them were placed in at least one race and 11 won at least once. One horse sustained a severe complication in recovery. No significant difference was observed in the racing performances before and after surgery. MAIN LIMITATIONS: Follow-up method and duration were not standardised and there is a low number of cases with six surgeons. CONCLUSIONS: Long condylar fractures can be repaired using lag fashion technique combined with a half-limb or full-limb tight cast for recovery as a good surgical alternative. Similar results to plate fixation can be expected, with a return to racing of more than 50%, and the prognosis being even better for pacers. PMID- 29350413 TI - Occupational exposure to extremely low-frequency magnetic fields and the risk of ALS: A systematic review and meta-analysis. AB - We performed a meta-analysis to examine associations of occupational exposure to extremely-low frequency magnetic fields (ELF-MF) with amyotrophic lateral sclerosis (ALS). Epidemiologic studies were identified in EMBASE and MEDLINE, in reference lists and a specialist database. We included studies that reported risk estimates of ALS in association with occupational ELF-MF exposure. Summary relative risks (RR) or odds ratios (OR) were obtained with random effect meta analysis, and analyses were stratified by type of exposure assessment. This was done to evaluate whether observed heterogeneity between studies could be explained with differences in the way the exposure had been determined. We included 20 studies in our meta-analysis. Overall, studies reported a slightly increased risk of ALS in those exposed to higher levels of ELF-MF compared to lower levels with a summary RR (sRR) of 1.14 (95% Confidence Interval [CI] 1.00 1.30) and for workers in electrical occupations (sRR 1.41, CI 1.05-1.92), but with large heterogeneity between studies (I2 > 70%). Self-reported exposure or occupations determined from death certificates did not show increased risks. Highest-longest types of exposure translated into increased risks of ALS if the studies had evaluated the whole occupational history, in contrast to evaluating only few points in time (e.g., from census records); sRR were 1.89 (CI 1.31-2.73, I2 0%) and 1.06 (CI 0.75-1.57, I2 76%), respectively. In this meta-analysis, we observed an increased risk of ALS in workers occupationally exposed to ELF-MF. Results of studies depended on the quality of the exposure assessment. Bioelectromagnetics. 39:156-163, 2018. (c) 2018 Wiley Periodicals, Inc. PMID- 29350414 TI - Ross River virus in Australian blood donors: possible implications for blood transfusion safety. AB - BACKGROUND: Emerging transfusion-transmissible pathogens, including arboviruses such as West Nile, Zika, dengue, and Ross River viruses, are potential threats to transfusion safety. The most prevalent arbovirus in humans in Australia is Ross River virus (RRV); however, prevalence varies substantially around the country. Modeling estimated a yearly risk of 8 to 11 potentially RRV-viremic fresh blood components nationwide. This study aimed to measure the occurrence of RRV viremia among donors who donated at Australian collection centers located in areas with significant RRV transmission during one peak season. STUDY DESIGN AND METHODS: Plasma samples were collected from donors (n = 7500) who donated at the selected collection centers during one peak season. Viral RNA was extracted from individual samples, and quantitative reverse transcription-polymerase chain reaction was performed. RESULTS: Regions with the highest rates of RRV transmission were not areas where donor centers were located. We did not detect RRV RNA among 7500 donations collected at the selected centers, resulting in a zero risk estimate with a one-sided 95% confidence interval of 0 to 1 in 2019 donations. CONCLUSION: Our results suggest that the yearly risk of collecting a RRV-infected blood donation in Australia is low and is at the lower range of previous risk modeling. The majority of Australian donor centers were not in areas known to be at the highest risk for RRV transmission, which was not taken into account in previous models based on notification data. Therefore, we believe that the risk of RRV transfusion transmission in Australia is acceptably low and appropriately managed through existing risk management, including donation restrictions and recall policies. PMID- 29350415 TI - Diagnoses and ordering practices driving blood demand for treatment of anemia in Tanzania. AB - BACKGROUND: Resource-limited countries in Africa experience blood shortages. Understanding clinical drivers of blood demand can inform strategies to increase blood availability. STUDY DESIGN AND METHODS: From a national representative sample of 42 hospitals in Tanzania, patient records and requests for whole blood (WB) and red blood cells (RBCs) to treat anemia were analyzed using data collected prospectively from June through September 2013. Abstracted data included cause of anemia, number of requested units, clinical signs, and pretransfusion hemoglobin (Hb) levels. Weighted projections of nationwide drivers of blood demand for the year, 2013, were calculated. Mean posttransfusion Hb levels were estimated, and blood requests were assessed for clinical appropriateness. RESULTS: Malaria was the leading driver of blood demand for anemia among children, accounting for 67% (55,949 units; standard deviation [SD], 1911 units) of projected units requested for children in 2013. Maternal hemorrhage was the leading driver of blood demand for anemia among adults, accounting for 21% (31,321 units; SD, 963 units) of projected units requested. Seventeen percent (26,133 units; SD, 1013 units) of projected requested units were deemed inappropriate. Adults with severe anemia had a mean Hb level of 3.7 g/dL and a mean of 1.6 WB or RBC units per request, resulting in an estimated mean posttransfusion Hb level of 5.3 g/dL. CONCLUSIONS: Strategies to prevent and treat underlying causes of anemia and decrease inappropriate blood requests will likely increase blood availability. Restrictive blood ordering practices seen in adults with severe anemia suggests undertreatment of anemia and may result in an underestimation of the national blood demand. PMID- 29350416 TI - Acute hemorrhagic lesions in an immunosuppressed patient. PMID- 29350417 TI - Hepatitis C virus core protein induces dysfunction of liver sinusoidal endothelial cell by down-regulation of silent information regulator 1. AB - Hepatic fibrosis is a frequent feature of chronic hepatitis C virus (HCV) infection. Some evidence has suggested the potential role of silent information regulator 1 (SIRT1) in organ fibrosis. The aim of this study was to investigate the effect of HCV core protein on expression of SIRT1 of liver sinusoidal endothelial cell (LSEC) and function of LSEC. LSECs were co-cultured with HepG2 cells or HepG2 cells expressing HCV core protein and LSECs cultured alone were used as controls. After co-culture, the activity and expression levels of mRNA and protein of SIRT1 in LSEC were detected by a SIRT1 fluorometric assay kit, real time-PCR (RT-PCR), Western blot, respectively. The levels of adiponectin receptor 2 (AdipoR2), endothelial nitric oxide synthase (eNOS) and vascular endothelial growth factor (VEGF) were measured by Western blot. Cluster of differentiation 31 (CD31), CD14, and von Willebrand factor (vWf) of LSECs was performed by flow cytometry. The level of reactive oxygen species (ROS) was assayed. Malondialdehyde (MDA), superoxide dismutase (SOD), adiponectin, nitric oxide (NO), and endothelin-1 (ET-1) levels in the co-culture supernatant were measured. The co-culture supernatant was then used to cultivate LX-2 cells. The levels of alpha-smooth muscle actin (ASMA) and transforming growth factor-beta1 (TGF-beta1) protein in LX-2 cells were measured by Western blot. Compared with LSEC co-cultured with HepG2 cells group, in LSEC co-cultured with HepG2-core cells group, the activity and expression level of mRNA and protein of SIRT1 reduced; the level of adiponectin reduced and the expression level of AdipoR2 protein decreased; ROS levels increased; the expression level of eNOS, VEGF protein decreased; and the expression level of CD14 decreased; the expression level of vWf and CD31 increased; NO and SOD levels decreased; whereas ET-1 and MDA levels increased; the levels of ASMA and TGF-beta1 protein in LX-2 cells increased. SIRT1 activator improved the above-mentioned changes. HCV core protein may down-regulate the activity and the expression of SIRT1 of LSEC, then decreasing synthesis of adiponectin and the expression of AdipoR2, thus inducing contraction of LSEC and hepatic sinusoidal capillarization and increasing oxidative stress, ultimately cause hepatic stellate cell (HSC) activation. Treatment with SIRT1 activator restored the function of LSEC and inhibited the activation of HSC. PMID- 29350418 TI - Species differences in circulation and inflammatory responses in children with common respiratory adenovirus infections. AB - Human adenoviruses (HAdVs) cause severe inflammatory respiratory infections, but previous epidemiological studies lacked analysis of the characteristics of the inflammation. Consecutive patients <13 years old with acute febrile illness during a 2-year period were tested. HAdV strains were isolated from nasopharyngeal swabs, and molecular identification was performed by hexon, fiber, and species-specific PCR methods. Blood inflammatory markers, including the white blood cell (WBC) count, CRP, and 29 cytokines, were measured. A total of 187 patients were enrolled, and HAdV types were identified from 175 patients (93.5%). Species C (types 2, 1, 5, and 6, in order of frequency) was most common at 37.1%, followed by B (type 3) at 30.9% and E (type 4) at 26.9%. Species C was detected predominantly in 1-year-old, whereas B and E were in older ages. Species C and B had seasonal circulation patterns, but E was found in only one season during the 2-year study period. The WBC count was highest in patients with species C. Eleven of the 29 tested serum cytokines were detected. Seven kinds, including G-CSF, IL 6, and TNF-alpha, were elevated in species C infections, whereas IL-10 was lowest in species C. Species differences in inflammatory responses, especially regarding serum cytokines were described in common pediatric HAdV infections. Species C causes the strongest inflammatory responses in young children. PMID- 29350420 TI - Over-expression of DEC1 inhibits myogenic differentiation by modulating MyoG activity in bovine satellite cell. AB - Differentiated embryo chondrocyte 1 (DEC1), a member of basic-helix-loop-helix transcription factor Bhlhe40, also called stimulated by retinoic acid 13, STRA13, plays an important role in the regulation of adipogenesis, tumorigenesis, peripheral circadian output, response to hypoxia, and development of metabolic syndrome. Previous studies suggested that DEC1 was involved in skeletal muscle development; however, its precise role in myoblast differentiation has not been determined. In the present study, we showed that DEC1 expressed ubiquitously in different bovine tissues and was down-regulated in differentiated bovine satellite cells. Expression of muscle specific transcription factors (Myf5, MyoD, MyoG, and MHC) was significantly down-regulated when DEC1 was over-expressed by both CoCl2 -simulated hypoxia and Adenovirus-mediated transduction in bovine satellite cells. Consistent with that, promoter analyses via luciferase reporter assay also revealed that overexpression of bovine DEC1 could inhibit MyoG promoter activity. In conclusion, overexpression of DEC1 blocked myogenesis by inhibiting MyoG promoter activity in bovine. Our results provided a new mechanism for the muscle growth, which would contribute to increase cattle meat productivity. PMID- 29350421 TI - Involvement of xanthine oxidase inhibition with the antioxidant property of nanoencapsulated Melaleuca alternifolia essential oil in fish experimentally infected with Pseudomonas aeruginosa. AB - Nanoencapsulated Melaleuca alternifolia essential oil (tea tree oil, TTO) is a natural alternative treatment, with 100% therapeutic efficacy in fish experimentally infected with Pseudomonas aeruginosa, and has also potent protective effects linked with antioxidant properties. However, the pathways responsible for the antioxidant capacity remain unknown. Thus, this study evaluated whether the inhibition of seric xanthine oxidase (XO) activity can be considered a pathway involved in the antioxidant capacity of nanoencapsulated TTO in fish experimentally infected with P. aeruginosa. Seric samples from fish infected with P. aeruginosa showed increased XO activity, as well as increased uric acid and reactive oxygen species (ROS) levels. In contrast, the prophylactic treatment with nanoencapsulated TTO prevented these infection-induced alterations. Based on the evidence obtained, the upregulation of seric XO activity induced pro-oxidative effects in the serum of fish experimentally infected with P. aeruginosa, due to excessive formation of uric acid, which stimulates the release of ROS. This treatment was able to prevent the upregulated seric XO activity and, consequently, the excessive formation of uric acid and ROS. In summary, inhibition of seric XO activity can be considered a pathway involved in the antioxidant capacity of nanoencapsulated TTO in fish experimentally infected with P. aeruginosa. PMID- 29350419 TI - An integrated framework for the role of oxytocin in multistage social decision making. AB - Interest in the effects of oxytocin on social behavior has persisted even as an overarching theory describing these effects has remained largely elusive. Some of the earliest studies on the effects of oxytocin on social decision-making indicated that oxytocin might enhance prosocial actions directed toward others. This led to development of the prosocial hypothesis, which stipulates that oxytocin specifically enhances prosocial choices. However, further work indicated that oxytocin administration could elicit antisocial behaviors as well in certain social situations, highlighting the importance of context-dependent effects. At least two prominent hypotheses have been used to explain these seemingly contradictory findings. The social salience hypothesis indicates that the effects of oxytocin can be conceptualized as a general increase in the salience of social stimuli in the environment. Distinctly, the approach/withdrawal hypothesis stipulates that oxytocin enhances approach behaviors and decreases withdrawal behaviors. These phenomenologically motivated hypotheses regarding the effects of oxytocin on social behavior have created controversies in the field. In this review, we present a multistage framework of social decision-making designed to unify these disparate theories in a process common to all social decisions. We conceptualize this process as involving multiple distinct computational steps, including sensory input, sensory perception, valuation, decision formulation, and behavioral output. Iteratively, these steps generate social behaviors, and oxytocin could be acting on any of these steps to exert its effects. In support of this framework, we examine both behavioral and neural evidence across rodents, non-human primates, and humans, determining at what point in our multistage framework oxytocin could be eliciting its socially relevant effects. Finally, we postulate based on our framework that the prosocial, social salience, and approach/withdrawal hypotheses may not be mutually exclusive and could explain the influence of oxytocin on social behavior to different extents depending on context. PMID- 29350422 TI - Potency of polycyclic aromatic hydrocarbons in chicken and Japanese quail embryos. AB - Birds are receptors of concern for polycyclic aromatic hydrocarbons (PAHs), yet limited data describing the relative potency of PAH congeners are available for avian species. In the present study, we determined embryonic median lethal dose (LD50) values for 5 PAH congeners in chicken (Gallus gallus) and one PAH congener in Japanese quail (Coturnix japonica). Graded concentrations of each test compound were injected into the air cell of chicken or quail eggs before incubation. Embryos were monitored through development (quail) or hatching (chicken). All PAHs tested caused dose-dependent increases in embryo mortality, but few other effects (e.g., weight changes, deformities) were observed. In chicken, windows of developmental sensitivity were identified between embryonic days 4 and 9 and between embryonic days 20 and 22. The rank order potency of benzo[k]fluoranthene (BkF; 76 MUg/kg) ~ dibenz[ah]anthracene (83 MUg/kg) > indeno[1,2,3-cd]pyrene (325 MUg/kg) > benzo[a]pyrene (461 MUg/kg) > benz[a]anthracene (529 MUg/kg) corresponded well with previous in vitro estimates in birds. Previously published ethoxyresorufin-O-deethylase median effect concentrations from cultured chicken embryo hepatocytes were highly predictive of our LD50s (p < 0.001, r2 = 0.99). To explore differences in sensitivity between species, Japanese quail eggs were injected with BkF, the most potent PAH. We found that chicken and quail were nearly equally sensitive to BkF. The present results contribute to our developing understanding of variability in responses to PAHs among congeners and species. Environ Toxicol Chem 2018;37:1556-1564. (c) 2018 SETAC. PMID- 29350423 TI - Ephrin-A1-EphA4 signaling negatively regulates myelination in the central nervous system. AB - During development of the central nervous system not all axons are myelinated, and axons may have distinct myelination patterns. Furthermore, the number of myelin sheaths formed by each oligodendrocyte is highly variable. However, our current knowledge about the axo-glia communication that regulates the formation of myelin sheaths spatially and temporally is limited. By using axon-mimicking microfibers and a zebrafish model system, we show that axonal ephrin-A1 inhibits myelination. Ephrin-A1 interacts with EphA4 to activate the ephexin1-RhoA-Rock myosin 2 signaling cascade and causes inhibition of oligodendrocyte process extension. Both in myelinating co-cultures and in zebrafish larvae, activation of EphA4 decreases myelination, whereas myelination is increased by inhibition of EphA4 signaling at different levels of the pathway, or by receptor knockdown. Mechanistically, the enhanced myelination is a result of a higher number of myelin sheaths formed by each oligodendrocyte, not an increased number of mature cells. Thus, we have identified EphA4 and ephrin-A1 as novel negative regulators of myelination. Our data suggest that activation of an EphA4-RhoA pathway in oligodendrocytes by axonal ephrin-A1 inhibits stable axo-glia interaction required for generating a myelin sheath. PMID- 29350424 TI - Prevalence of high-grade cervical intraepithelial neoplasia in women with persistent high-risk HPV genotypes and negative cytology. AB - INTRODUCTION: Primary HPV screening will be implemented into the English Cervical Screening Programme by 2019. Its impact upon women referred to colposcopy, with negative cytology but persistently positive high-risk HPV (hrHPV), remains unreported from UK Sentinel sites. HPV primary screening was introduced in Sheffield, UK in April 2013; this paper reports its impact on the service. METHODS: A retrospective cohort study was performed from June 2014 to July 2016 at the Jessop Wing Colposcopy Unit, Sheffield. UK. Data were obtained from the pathology and colposcopy databases and cross-referenced with case-notes and pathology results for women referred with persistently positive hrHPV, cytology negative samples. Patient demographics, hrHPV genotype, biopsy rates, histological diagnoses, management, and outcomes were collected and baseline statistics performed. RESULTS: During the study 1076 women were seen. Most frequent hrHPV genotypes were: hrHPV other, 41%; and HPV16, 33%. The majority (72%) were found to have normal colposcopy; 28% had an abnormal colposcopic assessment (11% low-grade; 11% high-grade; 6% inadequate). The majority were discharged (83%) and only 5% underwent LLETZ. No cancers were detected. High grade cervical intraepithelial neoplasia (CIN) was found in 7%; overall risk of CIN2 was 1/29; 1/30 for CIN3. Presence of HPV16 was associated with a significantly higher risk of high-grade CIN; 1/9. CONCLUSION: This is the first study to report results for women referred to colposcopy with cytology negative, persistently positive hrHPV. Disease prevalence is low, although women with HPV16 have a significantly higher likelihood of high-grade disease compared to other HPV subtypes. PMID- 29350426 TI - Efficacy of photodynamic therapy in the treatment of symptomatic oral lichen planus: A systematic review. AB - BACKGROUND: The aim of this study was to systematically review the efficacy of photodynamic therapy (PDT) in the management of symptomatic oral lichen planus (OLP). MATERIALS AND METHODS: PubMed/MEDLINE, Scopus, and ISI Web of knowledge were searched until July 2017, using the following keywords: OLP, erosive lichen planus, lichen planus, and PDT. RESULTS: Five clinical studies were included. The risk of bias was considered high in 4 studies and moderate in 1 study. The efficacy of PDT was compared with topical corticosteroids in all included studies. Laser wavelengths, duration of irradiation, and power density ranged between 420-660 nm, 30 seconds to 10 minutes, and 10-500 mW/cm2 , respectively. All studies reported PDT to be effective in the management of symptomatic OLP. Two studies reported PDT to be as effective as corticosteroids, 1 study reported a better efficacy of PDT compared to corticosteroids, whereas 2 studies found PDT to be inferior to corticosteroids. CONCLUSIONS: The limited available evidence suggests that PDT is an effective treatment option for the management of OLP. However, due to the limited number of studies included in this review and heterogeneity among these studies, more well-designed clinical trials with adequate sample sizes are highly warranted. PMID- 29350425 TI - The impact of preapheresis white blood cell count on autologous peripheral blood stem cell collection efficiency and HSC infusion side effect rate. AB - BACKGROUND: Autologous peripheral blood hematopoietic stem cell (PBSC) collection efficiency (CE) is reportedly affected by the patient's blood properties; however, studies to identify factors correlated with CE have shown inconsistent results. Additionally, variables such as stem cell graft granulocyte content and patient age, sex, and underlying disease, may be associated with hematopietic stem cell (HSC) infusion-related adverse reactions. In this study, we evaluated the correlation of preleukapheresis PB granulocyte count and PBSC harvest variables with CD34+ collection yield and efficiency, and thawed HSC infusion side effect occurrence. PATIENTS AND METHODS: We evaluated data from 361 patients who had undergone autologous PBSC transplant. Large volume leukapheresis was the method for PBSC collection. Complete Blood Count and CD34+ cell enumeration were performed in the preapheresis PB and the apheresis product sample. The PBSC grafts were submitted to non-controlled rate freezing after addition of 5% DMSO plus 6% hidroxyethylstarch as a cryoprotectant solution. The cryopreserved graft was thawed in a 37 degrees C water bath and then infused without further manipulation. RESULTS: The CD34+ yield was associated with preapheresis PB CD34+ count and immature granulocyte count. The PBSC CE was negatively correlated with preapheresis white blood cell (WBC), immature granulocyte and granulocyte count. The leukapheresis product total nucleated cell (TNC) and granulocyte content was correlated with the thawed graft infusion side effect occurrence. CONCLUSION: This study has shown that preapheresis PB WBC and granulocyte counts were associated with leukapheresis CE. Additionally, the leukapheresis product TNC and granulocyte content was correlated with thawed graft infusion side effect occurrence. PMID- 29350427 TI - Role of microglia in the spinal cord in colon-to-bladder neural crosstalk in a rat model of colitis. AB - AIMS: We investigated whether spinal cord microglia are involved in colon-to bladder neural crosstalk in a rat model of colitis. METHODS: Adult female SD rats were divided into A) control, B) colitis, and C) colitis + minocycline groups. Experimental colitis was induced by administering 50% trinitrobenzene sulfonic acid into the distal colon in the colitis group and the minocycline group. Minocycline, a microglial inhibitor, was continuously infused into the intrathecal space in the minocycline group. The following investigations were performed on day 7: (1) continuous cystometry (CMG) in an awake condition; (2) nociceptive behavior observation induced by intravesical instillation of resiniferatoxin; (3) toluidine blue staining in the bladder; (4) Immunofluorescence staining for the microglial marker, CD11b, in L6 spinal cord sections; and (5) quantitative RT-PCR to investigate interleukin-1beta (IL 1beta), chemokine ligand 3 (CCL3), and brain-derived neurotrophic factor (BDNF) gene expression in the L6 spinal cord. RESULTS: In comparison with the control group, the colitis group showed significant increases in (1) micturition frequency during cystometry; (2) resiniferatoxin-induced freezing behavior (bladder pain); (3) the number of total and degranulated mast cells in the bladder; (4) the number of microglia in the L6 spinal cord, and (5) the expression of IL-1beta, CCL3, and BDNF mRNA in the L6 spinal cord. Moreover, intrathecal administration of minocycline alleviated these pathophysiological findings caused by experimental colitis. CONCLUSIONS: Spinal microglia may play an important role in colitis-induced bladder overactivity and enhanced bladder pain sensitivity in colitis rats. PMID- 29350428 TI - Meta-analysis of fish early life stage tests-Association of toxic ratios and acute-to-chronic ratios with modes of action. AB - Fish early life stage (ELS) tests (Organisation for Economic Co-operation and Development test guideline 210) are widely conducted to estimate chronic fish toxicity. In these tests, fish are exposed from the embryonic to the juvenile life stages. To analyze whether certain modes of action are related to high toxic ratios (i.e., ratios between baseline toxicity and experimental effect) and/or acute-to-chronic ratios (ACRs) in the fish ELS test, effect concentrations (ECs) for 183 compounds were extracted from the US Environmental Protection Agency's ecotoxicity database. Analysis of ECs of narcotic compounds indicated that baseline toxicity could be observed in the fish ELS test at similar concentrations as in the acute fish toxicity test. All nonnarcotic modes of action were associated with higher toxic ratios, with median values ranging from 4 to 9.3 * 104 (uncoupling < reactivity < neuromuscular toxicity < methemoglobin formation < endocrine disruption < extracellular matrix formation inhibition). Four modes of action were also found to be associated with high ACRs: 1) lysyl oxidase inhibition leading to notochord distortion, 2) putative methemoglobin formation or hemolytic anemia, 3) endocrine disruption, and 4) compounds with neuromuscular toxicity. For the prediction of ECs in the fish ELS test with alternative test systems, endpoints targeted to the modes of action of compounds with enhanced toxic ratios or ACRs could be used to trigger fish ELS tests or even replace these tests. Environ Toxicol Chem 2018;37:955-969. (c) 2018 SETAC. PMID- 29350429 TI - Sprint performance and propulsion asymmetries on an ergometer in trained high- and low-point wheelchair rugby players. AB - The purpose of this study was to examine the propulsion asymmetries of wheelchair athletes while sprinting on an instrumented, dual-roller ergometer system. Eighteen experienced wheelchair rugby players (8 low point (LP) (class <=1.5) and 10 high point (HP) (class >=2.0)) performed a 15-second sprint in their sports wheelchair on the instrumented ergometer. Asymmetry was defined as the difference in distance and power output (PO) between left and right sides when the best side reached 28 m. Propulsion techniques were quantified based on torque and velocity data. HP players covered an average 3 m further than the LP players (P = .002) and achieved faster sprint times than LP players (6.95 +/- 0.89 vs 8.03 +/- 0.68 seconds, P = .005) and at the time the best player finished (5.96 seconds). Higher peak POs (667 +/- 108 vs 357 +/- 78 W, P = .0001) and greater peak speeds that were also evident were for HP players (4.80 +/- 0.71 vs 4.09 +/- 0.45 m/s, P = .011). Greater asymmetries were found in HP players for distance (1.86 +/- 1.43 vs 0.70 +/- 0.65 m, P = .016), absolute peak PO (P = .049), and speed (0.35 +/- 0.25 vs 0.11 +/- 0.10 m/s, P = .009). Although HP players had faster sprint times over 28 m (achieved by a higher PO), high standard deviations show the heterogeneity within the two groups (eg, some LP players were better than HP players). Quantification of asymmetries is important not only for classifiers but also for sports practitioners wishing to improve performance as they could be addressed through training and/or wheelchair configuration. PMID- 29350430 TI - On the impact of sample size on median lethal concentration estimation in acute fish toxicity testing: Is n = 7/group enough? AB - The fish acute toxicity test method is foundational to aquatic toxicity testing strategies, yet the literature lacks a concise sample size assessment. Although various sources address sample size, historical precedent seems to play a larger role than objective measures. We present a novel and comprehensive quantification of the effect of sample size on estimation of the median lethal concentration (LC50), covering a wide range of scenarios. The results put into perspective the practical differences across a range of sample sizes, from n = 5/concentration up to n = 23/concentration. We also provide a framework for setting sample size guidance illustrating ways to quantify the performance of LC50 estimation, which can be used to set sample size guidance given reasonably difficult (or worst case) scenarios. There is a clear benefit to larger sample size studies: they reduce error in the determination of LC50s, and lead to more robust safe environmental concentration determinations, particularly in cases likely to be called worst-case (shallow slope and true LC50 near the edges of the concentration range). Given that the use of well-justified sample sizes is crucial to reducing uncertainty in toxicity estimates, these results lead us to recommend a reconsideration of the current de minimis 7/concentration sample size for critical studies (e.g., studies needed for a chemical registration, which are being tested for the first time, or involving difficult test substances). Environ Toxicol Chem 2018;37:1565-1578. (c) 2018 SETAC. PMID- 29350431 TI - miFAST: A novel and rapid microRNA target capture method. AB - MicroRNAs (miRNAs), small 22-25 nucleotide non-coding RNAs, play important roles in cellular and tumor biology. However, characterizing miRNA function remains challenging due to an abundance of predicted targets and an experimental bottleneck in identifying biologically relevant direct targets. Here, we developed a novel technique (miFAST) to identify direct miRNA target genes. Using miFAST, we confirmed several previously reported miR-340 target genes and identified five additional novel direct miR-340 targets in melanoma cells. This methodology can also be efficiently applied for the global characterization of miRNA targets. Utilizing miFAST to characterize direct miRNA targetomes will further our understanding of miRNA biology and function. PMID- 29350432 TI - National Public Health Data Systems in the United States: Applications to Child Agricultural Injury Surveillance. AB - PURPOSE: The United States has no comprehensive national surveillance system for fatal or nonfatal child agricultural injuries. Thus, important knowledge gaps exist about recurrent injury patterns that could provide targeted focus for prevention efforts. The purpose of this study was to explore existing US public health data systems to determine their utility with respect to informing child agricultural injury surveillance and primary prevention. METHODS: Public health data systems were selected if they: (1) were national in scope, (2) were active and ongoing, (3) included physical injuries, and (4) contained a "farm" location variable. Data systems explored included National Emergency Medical Services Information System, National Trauma Data Bank, National Electronic Injury Surveillance System-All Injury Program, and National Vital Statistics System Multiple Cause File. FINDINGS: Each data system contained substantial information per case with the number of fields ranging from 77 to 127. Beyond basic demographic information about the injured child, there were many injury descriptors, but few commonalities across systems. The most striking finding was the uniform absence of information on injury circumstances; that is, why and how the injury occurred, which is fundamental to planning and evaluating prevention initiatives. CONCLUSIONS: Although these public health data systems captured many details regarding medical aspects of the injury, they included little information on circumstances leading to injury, thus limiting their utility for child agricultural injury surveillance and primary prevention initiatives. We recommend any child agricultural injury data collection tool formally incorporate a structured narrative so underlying circumstances leading to injury events are documented. PMID- 29350433 TI - Amino group of salicylic acid exhibits enhanced inhibitory potential against insulin amyloid fibrillation with protective aptitude toward amyloid induced cytotoxicity. AB - Protein misfolding and aggregation lead to amyloid generation that in turn may induce cell membrane disruption and leads to cell apoptosis. In an effort to prevent or treat amyloidogenesis, large number of studies has been paying attention on breakthrough of amyloid inhibitors. In the present work, we aim to access the effect of two drugs, that is, acetylsalicylic acid and 5-amino salicylic acid on insulin amyloids by using various biophysical, imaging, cell viability assay, and computational approaches. We established that both drugs reduce the turbidity, light scattering and fluorescence intensity of amyloid indicator dye thioflavin T. Premixing of drugs with insulin inhibited the nucleation phase and inhibitory potential was boosted by increasing the concentration of the drug. Moreover, addition of drugs at the studied concentrations attenuated the insulin fibril induced cytotoxicity in breast cancer cell line MDA-MB-231. Our results highlight the amino group of salicylic acid exhibited enhanced inhibitory effects on insulin fibrillation in comparison to acetyl group. It may be due to presence of amino group that helps it to prolong the nucleation phase with strong binding as well as disruption of aromatic and hydrophobic stacking that plays a key role in amyloid progression. PMID- 29350434 TI - The cystine-glutamate exchanger (xCT, Slc7a11) is expressed in significant concentrations in a subpopulation of astrocytes in the mouse brain. AB - : The cystine-glutamate exchanger (xCT) promotes glutathione synthesis by catalyzing cystine uptake and glutamate release. The released glutamate may modulate normal neural signaling and contribute to excitotoxicity in pathological situations. Uncertainty, however, remains as neither the expression levels nor the distribution of xCT have been unambiguously determined. In fact, xCT has been reported in astrocytes, neurons, oligodendrocytes and microglia, but most of the information derives from cell cultures. Here, we show by immunohistochemistry and by Western blotting that xCT is widely expressed in the central nervous system of both sexes. The labeling specificity was validated using tissue from xCT knockout mice as controls. Astrocytes were selectively labeled, but showed greatly varying labeling intensities. This astroglial heterogeneity resulted in an astrocyte domain-like labeling pattern. Strong xCT labeling was also found in the leptomeninges, along some blood vessels, in selected circumventricular organs and in a subpopulation of tanycytes residing the lateral walls of the ventral third ventricle. Neurons, oligodendrocytes and resting microglia, as well as reactive microglia induced by glutamine synthetase deficiency, were unlabeled. The concentration of xCT protein in hippocampus was compared with that of the EAAT3 glutamate transporter by immunoblotting using a chimeric xCT-EAAT3 protein to normalize xCT and EAAT3 labeling intensities. The immunoblots suggested an xCT/EAAT3 ratio close to one (0.75 +/- 0.07; average +/- SEM; n = 4) in adult C57BL6 mice. CONCLUSIONS: xCT is present in select blood/brain/CSF interface areas and in an astrocyte subpopulation, in sufficient quantities to support the notion that system xc- provides physiologically relevant transport activity. PMID- 29350435 TI - From micro- to macro-structures in multiple sclerosis: what is the added value of diffusion imaging. AB - Diffusion imaging has been instrumental in understanding damage to the central nervous system as a result of its sensitivity to microstructural changes. Clinical applications of diffusion imaging have grown exponentially over the past couple of decades in many neurological and neurodegenerative diseases, such as multiple sclerosis (MS). For several reasons, MS has been extensively researched using advanced neuroimaging techniques, which makes it an 'example disease' to illustrate the potential of diffusion imaging for clinical applications. In addition, MS pathology is characterized by several key processes competing with each other, such as inflammation, demyelination, remyelination, gliosis and axonal loss, enabling the specificity of diffusion to be challenged. In this review, we describe how diffusion imaging can be exploited to investigate micro-, meso- and macro-scale properties of the brain structure and discuss how they are affected by different pathological substrates. Conclusions from the literature are that larger studies are needed to confirm the exciting results from initial investigations before current trends in diffusion imaging can be translated to the neurology clinic. Also, for a comprehensive understanding of pathological processes, it is essential to take a multiple-level approach, in which information at the micro-, meso- and macroscopic scales is fully integrated. PMID- 29350436 TI - Age difference between parents influences parity and number of sons. AB - OBJECTIVES: Among couples, women usually prefer slightly older men, and men tend to choose much younger partners. Age difference between partners has been shown to influence their parity; however, results of previous studies are inconsistent. This study analyzed relationships between husband and wife age difference and their total number of children, and number of daughters and sons in a contemporary, rural Polish population. METHODS: Demographic and reproductive data were collected from 384 postmenopausal women from rural Poland who were married only once. Regression models were used to evaluate the impact of the age gap between partners on total number of children and on number of daughters and sons. Women's age, age at marriage (as an indicator of reproductive value), and years of education were used in analyzes as potential confounders. RESULTS: There was an inverted U-shape association between parental age difference and number of children and also the number of sons. The highest number of children and sons was observed when men were approximately 6.5 years older than their wives. There was no significant relationship between parental age difference and number of daughters. CONCLUSIONS: Age difference between partners is important for reproductive success (with younger wives having higher reproductive potential) and is also related to number of sons. Older husbands might provide more resources for the family, thus facilitating production of well-nourished male offspring. Future research should evaluate not only number of children but also their biological condition, health, and lifetime achievements in relation to the age difference between their parents. PMID- 29350437 TI - Diffusion tensor imaging MRI of sickle cell kidney disease: initial results and comparison with iron deposition. AB - Chronic kidney disease (CKD) occurs in over one-third of patients with sickle cell disease (SCD) and can progress to end-stage renal disease. Unfortunately, current clinical assessments of kidney function are insensitive to early-stage CKD. Previous studies have shown that diffusion magnetic resonance imaging (MRI) can sensitively detect regional renal microstructural changes associated with early-stage CKD. However, previous MRI studies in patients with SCD have been largely limited to the detection of renal iron deposition assessed by T2 * relaxometry. In this pilot imaging study, we compare MRI assessments of renal microstructure (diffusion) and iron deposition (T2 *) in patients with SCD and in non-SCD control subjects. Diffusion tensor imaging (DTI) and T2 * relaxometry MRI data were obtained for pediatric (n = 5) and adult (n = 4) patients with SCD, as well as for non-SCD control subjects (n = 10), on a Siemens Espree 1.5-T MRI scanner. A region-of-interest analysis was used to calculate mean medullary and cortical values for each MRI metric. MRI findings were also compared with clinical assessments of renal function and hemolysis. Patients with SCD showed a significant decrease in medullary fractional anisotropy (FA, p = 0.0001) in comparison with non-SCD subjects, indicative of microstructural alterations in the renal medulla of patients with SCD. Cortical and medullary reductions in T2 * (increased iron deposition, p = <=0.0001) were also observed. Significant correlations were also observed between kidney T2 * assessments and multiple measures of hemolysis. This is the first DTI MRI study of patients with SCD to demonstrate reductions in medullary FA despite no overt CKD [estimated glomerular filtration rate (eGFR) > 100 mL/min/1.73 m2 ]. These medullary FA changes are consistent with previous studies in patients with CKD, and suggest that DTI MRI can provide a useful measure of kidney injury to complement MRI assessments of iron deposition. PMID- 29350439 TI - Tandem mass spectroscopy as a tool for investigation of complexes of PNP-lariat ether derivative with metal ions. AB - The novel PNP-lariat ether L with cyclotriphosphazene ring incorporated in the macrocyclic structure was synthesized and checked by the electrospray mass spectrometry (ESI-MS) method for the ability to bind different types of ions Ag+ , Ca2+ , Cd2+ , Cu2+ , and Pb2+ . Furthermore, the stability constants of the abovementioned ion complexes with the investigated ligand have been determined by direct and competitive potentiometric methods. To evaluate the stability of various complex types and to confirm the way of metal cation binding, the tandem mass spectra of the investigated ligand and its complexes were taken. As a result, we obtained quite a good relationship between the number and main types of complex species observed in ESI-MS experiments and the forms of complexes for which the stabilization constants were determined by potentiometric methods. Moreover, we also concluded that in case of big discrepancies of stability constants, ESI-MS experiments could provide information about the most stable form of the complexes, but they fail when the differences between the strength of the coordination binding are slightly different. PMID- 29350438 TI - Astrocytic glutamine synthetase is expressed in the neuronal somatic layers and down-regulated proportionally to neuronal loss in the human epileptic hippocampus. AB - Human mesial temporal lobe epilepsy (MTLE) features subregion-specific hippocampal neurodegeneration and reactive astrogliosis, including up-regulation of the glial fibrillary acidic protein (GFAP) and down-regulation of glutamine synthetase (GS). However, the regional astrocytic expression pattern of GFAP and GS upon MTLE-associated neurodegeneration still remains elusive. We assessed GFAP and GS expression in strict correlation with the local neuronal number in cortical and hippocampal surgical specimens from 16 MTLE patients using immunohistochemistry, stereology and high-resolution image analysis for digital pathology and whole-slide imaging. In the cortex, GS-positive (GS+) astrocytes are dominant in all neuronal layers, with a neuron to GS+ cell ratio of 2:1. GFAP positive (GFAP+) cells are widely spaced, with a GS+ to GFAP+ cell ratio of 3:1 5:1. White matter astrocytes, on the contrary, express mainly GFAP and, to a lesser extent, GS. In the hippocampus, the neuron to GS+ cell ratio is approximately 1:1. Hippocampal degeneration is associated with a reduction of GS+ astrocytes, which is proportional to the degree of neuronal loss and primarily present in the hilus. Up-regulation of GFAP as a classical hallmark of reactive astrogliosis does not follow the GS-pattern and is prominent in the CA1. Reactive alterations were proportional to the neuronal loss in the neuronal somatic layers (stratum pyramidale and hilus), while observed to a lesser extent in the axonal/dendritic layers (stratum radiatum, molecular layer). We conclude that astrocytic GS is expressed in the neuronal somatic layers and, upon neurodegeneration, is down-regulated proportionally to the degree of neuronal loss. PMID- 29350440 TI - Abrupt burial imparts persistent changes to the bacterial diversity of turbidite associated sediment profiles. AB - The emplacement of subaqueous gravity-driven sediment flows imposes a significant physical and geochemical impact on underlying sediment and microbial communities. Although previous studies have established lasting mineralogical and biological signatures of turbidite deposition, the response of bacteria and archaea within and beneath debris flows remains poorly constrained. Both bacterial cells associated with the underlying sediment and those attached to allochthonous material must respond to substantially altered environmental conditions and selective pressures. As a consequence, turbidites and underlying sediments provide an exceptional opportunity to examine (i) the microbial community response to rapid sedimentation and (ii) the preservation and identification of displaced micro-organisms. We collected Illumina MiSeq sequence libraries across turbidite boundaries at ~26 cm sediment depth in La Jolla Canyon off the coast of California, and at ~50 cm depth in meromictic Twin Lake, Hennepin County, MN. 16S rRNA gene signatures of relict and active bacterial populations exhibit persistent differences attributable to turbidite deposition. In particular, both the marine and lacustrine turbidite boundaries are sharply demarcated by the abundance and diversity of Chloroflexi, suggesting a characteristic sensitivity to sediment disturbance history or to differences in organic substrates across turbidite profiles. Variations in the abundance of putative dissimilatory sulfate reducing Deltaproteobacteria across the buried La Jolla Canyon sediment-water interface reflect turbidite-induced changes to the geochemical environment. Species-level distinctions within the Deltaproteobacteria clearly conform to the sedimentological boundary, suggesting a continuing impact of genetic inheritance distinguishable from broader trends attributable to selective pressure. Abrupt, <1-cm scale changes in bacterial diversity across the Twin Lake turbidite contact are consistent with previous studies showing that relict DNA signatures attributable to sediment transport may be more easily preserved in low-energy, anoxic environments. This work raises the possibility that deep subsurface microbial communities may inherit variations in microbial diversity from sediment flow and deformation events. PMID- 29350441 TI - Ultrasensitive detection of Shiga toxin 2 and its variants in Shiga toxin producing Escherichia coli strains by a time-resolved fluorescence immunoassay. AB - A rapid and sensitive two-step time-resolved fluorescence immunoassay (TRFIA) was developed for the detection of Shiga toxin 2 (Stx2) and its variants in Shiga toxin-producing Escherichia coli (STEC) strains. In sandwich mode, a monoclonal antibody against Stx2 was coated on a microtiter plate as a capture antibody. A tracer antibody against Stx2 labeled with europium(III) (Eu3+ ) chelate was then used as a detector, followed by fluorescence measurements using time-resolved fluorescence. The sensitivity of Stx2 detection was 0.038 ng/ml (dynamic range, 0.1-1000 ng/ml). The intra- and inter-assay coefficients of variation of the assay were 3.2% and 3.6%, respectively. The performance of the established assay was evaluated using culture supernatants of STEC strains, and the results were compared to those of a common HRP (horseradish peroxidase) labeling immunosorbent assay. A polymerase chain reaction (PCR) for the detection of genes encoding Stx1 and Stx2 was used as the reference for comparison. Correlation between the Stx2 specific TRFIA and PCR was calculated by the use of kappa statics, exhibiting a perfect level of agreement. The availability of the sensitive and reliable Stx2 specific TRFIA method for quantifying Stx2 and its variants in STEC strains will complement bacteria isolation-based platform and aid in the accurate and prompt diagnosis of STEC infections. PMID- 29350443 TI - Cutting reduces variation in biomass production of forage crops and allows low performers to catch up: A case study of Trifolium pratense L. (red clover). AB - Re-growth of fodder plants after grazing and mowing drives the profitability of their cultivation and is therefore an important target trait for plant breeding and agricultural engineering. However, for some fodder plants little is known about their re-growth dynamics in response to grazing or mowing. We analysed the native response of plant architecture, leaf morphology and growth performance to experimental cutting in wild Trifolium pratense L. (red clover) plants. A total of 150 potted clover plants were established under controlled field conditions, and half of the plants were cut to 5 cm 3 months after sowing. Each plant was measured every week for 5 months. The cut and subsequently re-grown plants carried fewer main branches (-20%), as well as fewer (-13%) and smaller (-32%) leaves than the control plants. However, the cut plants produced an average of 17% more accumulated leaf area (cut + re-grown leaf area) than the control plants. This discrepancy was explained by variation in the growth strategy of the plants, where the cut plants invariably expressed a second growth phase, while almost half of the untreated plants did not. Our results suggest that cutting acted as an artificial trigger initiating a second growth phase in the cut plants and thereby contributed to yield increase. Exploiting this mechanism may set new goals for breeding and optimisation of the mowing regime. PMID- 29350442 TI - Role of ethylene and related gene expression in the interaction between strawberry plants and the plant growth-promoting bacterium Azospirillum brasilense. AB - Induced systemic resistance (ISR) is one of the indirect mechanisms of growth promotion exerted by plant growth-promoting bacteria, and can be mediated by ethylene (ET). We assessed ET production and the expression of related genes in the Azospirillum-strawberry plant interaction. Ethylene production was evaluated by gas chromatography in plants inoculated or not with A. brasilense REC3. Also, plants were treated with AgNO3 , an inhibitor of ET biosynthesis; with 1 aminocyclopropane-1-carboxylic acid (ACC), a precursor of ET biosynthesis; and with indole acetic acid (IAA). Plant dry biomass and the growth index were determined to assess the growth-promoting effect of A. brasilense REC3 in strawberry plants. Quantitative real time PCR (qRT-PCR) was performed to analyse relative expression of the genes Faetr1, Faers1 and Faein4, which encode ET receptors; Factr1 and Faein2, involved in the ET signalling pathway; Faacs1 encoding ACC synthase; Faaco1 encoding ACC oxidase; and Faaux1 and Faami1 for IAA synthesis enzymes. Results showed that ET acts as a rapid and transient signal in the first 12 h post-treatment. A. brasilense REC3-inoculated plants had a significantly higher growth index compared to control plants. Modulation of the genes Faetr1, Faers1, Faein4, Factr1, Faein2 and Faaco1 indicated activation of ET synthesis and signalling pathways. The up-regulation of Faaux1 and Faami1 involved in IAA synthesis suggested that inoculation with A. brasilense REC3 induces production of this auxin, modulating ET signalling. Ethylene production and up-regulation of genes associated with ET signalling in strawberry plants inoculated with A. brasilense REC3 support the priming activation characteristic of ISR. This type of resistance and the activation of systemic acquired resistance previously observed in this interaction indicate that both are present in strawberry plants, could act synergistically and increase protection against pathogens. PMID- 29350444 TI - Four cases of iridociliary tumors in domestic rabbits (Oryctolagus Cuniculus). AB - Spontaneously occurring ocular neoplasia is rarely reported in rabbits. This case series presents four cases of rabbits diagnosed with iridociliary tumors, which have not been previously reported in this species. Major pathological findings include epithelial tumors affecting the anterior uvea with variable pigmentation and basement membrane formation. Follow-up information was only available for two cases, but neither showed evidence of metastasis, suggesting that the prognosis for these tumors in rabbits, as in other species, may be very good. PMID- 29350445 TI - Application of computer-aided sperm analysis (CASA) for detecting sperm immobilizing antibody. AB - PROBLEM: Since the 1970s, anti-sperm antibodies have been studied as a pathogenic factor contributing to infertility. The complement-dependent sperm-immobilization test (SIT) and quantitative SIT have been used as effective tools for detecting anti-sperm antibodies in clinical settings. These tests have been carried out traditionally by manually counting the number of motile sperm through eye estimation. METHOD OF STUDY: In this study, we developed a novel method using computer-aided sperm analysis. The results were compared with those obtained by the traditional method. RESULTS: The results were identical and 25 of 78 samples tested were positive and 53 samples were negative for sperm-immobilizing (SI) antibodies based on both methods. For SI-positive samples, the values of SI50 obtained using the two methods correlated closely with high co-efficiency. CONCLUSION: Using the novel method, manually counting the number of motile spermatozoa becomes unnecessary. The novel method presented here will increase the objectivity and convenience of using the SIT as a clinical indicator. PMID- 29350446 TI - Differential gene expression in trigeminal ganglia of male and female rats following chronic constriction of the infraorbital nerve. AB - BACKGROUND: The mechanisms underlying sex-based differences in pain and analgesia are poorly understood. In this study, we investigated gene expression changes in trigeminal ganglia (TG) of male and female rats exposed to infraorbital nerve chronic constriction injury (IoN-CCI). METHODS: Somatosensory assessments were performed prior to IoN-CCI and at selected time points postsurgery. Selected gene expression changes were examined with real-time quantitative polymerase chain reaction (RT-PCR) in ipsilateral TG at 21 days postsurgery. RESULTS: Rats exposed to IoN-CCI developed significant mechanical allodynia and hyperalgesia on days 19 and 21 postsurgery. During this period, females developed significantly more allodynia but not hyperalgesia compared to males. At 21 days postsurgery, expression levels of 44 of the 84 investigated pain-related genes in ipsilateral TG were significantly regulated relative to naive rats in either sex. Csf1 and Cx3cr1 were up-regulated in both sexes, but the magnitude of regulation was significantly higher in females (p = 0.02 and p = 0.001, respectively). Htr1a and Scn9a were down-regulated in both sexes, but the down-regulation was significantly more pronounced in males (p = 0.04 and p = 0.02, respectively). Additionally, Cck, Il1a, Pla2g1b and Tnf genes were significantly regulated in females but not in males, and Chrna4 gene was significantly down-regulated in males but not in females. CONCLUSIONS: Our findings suggest sex-dependent gene regulation in response to nerve injury, which may contribute to sex dimorphism of trigeminal neuropathic pain. Further studies are needed to establish gene expression changes over time and correlate these with hormonal and other physiological parameters in male and female. SIGNIFICANCE: We present novel sex specific transcriptional regulation in trigeminal ganglia that may contribute to male-/female-based differences in trigeminal neuropathic pain. These findings are expected to open new research horizons, particularly in male versus female targeted therapeutic regimens. PMID- 29350447 TI - Effect of sedation with butorphanol on variables pertaining to the ophthalmic examination in dogs. AB - OBJECTIVE: To evaluate whether sedation with intramuscular butorphanol can interfere with different variables of the ocular examination in dogs. ANIMALS: Twenty-two beagles without ophthalmic abnormalities. PROCEDURES: Each dog was examined 20 min prior to and again just before administration of butorphanol to establish baseline data. The globe and nictitating membrane position was evaluated, and the following were recorded: menace response, dazzle reflex, corneal blink reflex, phenol red thread tear test (PRT), Schirmer tear test-1 (STT-1), pupil size (PS) measurement, and rebound tonometry. Then, butorphanol was injected intramuscularly at a dose of 0.2 mg/kg and these procedures were repeated 10, 20, 30, and 45 min postadministration. A sedation score graded 0 to 3 was also established at these time points. Statistical analyses were performed on quantitative data using ANOVA. RESULTS: The sedative effect was not associated with any changes in globe and nictitating membrane position; did not affect the results of the menace response, dazzle reflex, and corneal blink reflex; and had no significant effect on PRT values. However, butorphanol administration was associated with a statistically significant decrease in STT-1 and PS values (P < 0.005), and a statistically significant increase in IOP (P < 0.05). All these variations remained in the range of normal values. CONCLUSIONS AND CLINICAL RELEVANCE: Butorphanol administered intramuscularly at 0.2 mg/kg provided a degree of sedation allowing eye examination, but was found to interfere with STT 1, PS, and IOP values among the diagnostic tests studied. However, these values remained within normal limits. PMID- 29350448 TI - Clinical and genetic associations for carboplatin-related ototoxicity in children treated for retinoblastoma: A retrospective noncomparative single-institute experience. AB - BACKGROUND: Children with retinoblastoma treated with carboplatin chemotherapy risk moderate to severe, irreversible hearing loss. Based on published evidence, we hypothesized that ototoxicity risk is associated with clinical parameters and variants in candidate genes in drug metabolism pathways (methyltransferases [thiopurine S-methyltransferase, TPMT] and [catechol-O-methyltransferase, COMT], and drug transporter ABCC3). PROCEDURE: We retrospectively reviewed clinical records of patients with retinoblastoma treated with carboplatin chemotherapy regarding age (at diagnosis and chemotherapy initiation), chemotherapy sessions (cycles number, drug doses, and cumulative carboplatin dose), and hearing loss (defined as ototoxicity >=grade 2 by at least one classification system). Blood samples were genotyped for genetic variants in TPMT (rs12201199, rs1800460), COMT (rs4646316, rs9332377), and ABCC3 (rs1051640) by quantitative PCR and confirmed by allele-specific PCR. Univariate statistical tests, receiver-operating characteristic analysis, and Kaplan-Meier curves were used to examine the association between hearing loss, clinical factors, and variants in candidate genes. RESULTS: Audiometric data and stored DNA were available for 71 patients with retinoblastoma (88% carried an RB1 pathogenic variant allele). Median carboplatin cumulative dose was 1,400 mg/m2 (260-5,148 mg/m2 ). Ototoxicity occurred in 18 patients (25%), strongly associated with age at diagnosis (P = 0.01) and age at chemotherapy initiation (OR = 4.99, P = 0.008). The highest likelihood ratio of hearing loss was associated with chemotherapy initiation <4.25 months of age. Ototoxicity was not associated with any tested genetic variants. CONCLUSIONS: We observed a 25% prevalence of ototoxicity in patients with retinoblastoma treated with carboplatin, higher than previously published. Age at chemotherapy initiation was associated with carboplatin-induced ototoxicity, with children <4.25 months of age at highest risk. PMID- 29350449 TI - Lipoidal corneal degeneration in aged falcons. AB - OBJECTIVE: To present a case series of idiopathic lipoidal corneal degeneration in falcons. ANIMALS STUDIED: Five falcons including three peregrine falcons (Falco peregrinus), one prairie falcon (Falco mexicanus), and one red-naped shaheen (Falco peregrinus babylonicus) were observed to develop slowly progressive corneal opacification that began at the temporal limbus and extended centripetally across the cornea over a period of years. Four of the birds were over 20 years old. PROCEDURES: All animals underwent complete ophthalmic examinations. A red-naped shaheen underwent ocular imaging via spectral-domain optical coherence tomography. Two peregrine falcons were euthanized due to declining health, and their eyes were examined histologically. RESULTS: The opacities were pale and granular, with frequent vascularization associated perilimbally. Diffuse neutral lipid was observed in stromal cells throughout the corneal stroma of both clear and opaque areas of the cornea, sparing only the acellular anterior limiting lamina. Clusters of cholesterol crystals surrounded by macrophages were present in the mid-stroma. Fibrosis was evident in a subepithelial location, which separated the epithelium from the anterior limiting lamina. Ultrastructurally, diffuse vacuolization of the keratocytes was observed. No other ophthalmic or systemic abnormalities were noted. CONCLUSIONS: Results suggest that lipid degeneration occurs rarely in captive falcons of advanced age. The underlying cause is unclear. Though unsubstantiated, possible contributing factors include dyslipoproteinemia, corneal trauma, diet, and age-related alterations in corneal metabolism. The initiation of pathology at the temporal limbus, as well as slow progression, suggests that exposure contributes to the onset and progression of this unique keratopathy. PMID- 29350450 TI - Cross-sectional and longitudinal analysis of nutritional status of school children from Bumbire Island (United Republic of Tanzania). AB - OBJECTIVE: To analyze the nutritional status of schoolchildren from Bumbire Island (Tanzania) from cross-sectional and longitudinal perspectives. METHODS: During 2014 and 2015, we collected anthropometric measurements in a sample of 437 schoolchildren (226 males, 211 females; 5-16 years). A sub-sample of 126 children were measured in both surveys. Socio-demographic data have been taken and dietary habits investigated. The accuracy of age data was checked. Malnutrition prevalence was calculated according to the WHO references and the z-score criteria. RESULTS: The prevalence of undernutrition was high (stunting: 30.7%; underweight: 12.9%; thinness: 4.5%), while overweight was rare (2.4%). The prevalence of stunting was higher in males and in older children. The one-year longitudinal analysis indicated that stunting prevalence increased. CONCLUSIONS: Undernutrition is affecting Bumbire Island children, likely due to micronutrient deficiencies. The effects of linear growth deficit continue to accumulate throughout childhood and adolescent years. PMID- 29350451 TI - Morphological specializations of the epidermis of an angler catfish Chaca chaca (Siluriformes, Chacidae) in relation to its ecological niche: A scanning electron microscopic investigation. AB - The present work was undertaken with the aim to deduce morphological adaptations in skin of an angler catfish Chaca chaca by means of scanning electron microscopy. The fish is nocturnal, bottom dwelling, sluggish, ambush predator, lives in sand, mud, or soft substrates often buried and camouflaged for protection and to feed. The surface of the epidermis is covered with polygonal epithelial cells, each having surface relief of microridges forming intricate patterns. In between epithelial cells irregularly distributed mucous cell openings, randomly distributed epidermal specialized structures, taste buds, and neuromasts are discernible. The epidermal specialized structures are keratinized. These are either irregularly the rounded elevated plaque like or the cone shaped structures. The superficial keratinized cells could frequently be discernible exfoliated at the surface. At intervals, characteristic epidermal projections could be observed. Surface of these projections at intervals is differentiated into short stumpy protuberances, each bearing a taste bud at its summit. Further, near the basal portion of these epidermal projections, conical, or rounded plaque like epidermal specialized structures are also discernible. The surface sculpture of the skin of Chaca chaca is associated with the structural and functional significance and physiological adaptations of the epidermis with respect to its ecological niche. PMID- 29350452 TI - Anatomical and phenological implications of the relationship between Schinus polygama (Cav.) (Cabrera) and the galling insect Calophya rubra (Blanchard). AB - The success of galling insects could be determined by synchronisation with host plant phenology and climate conditions, ensuring suitable oviposition sites for gall induction and food resources for their survival. The anatomical, histochemical and phenological synchronisation strategies between Calophya rubra (Blanchard) (Hemiptera: Psylloidea) and its host, the evergreen plant Schinus polygama (Cav.) (Cabrera) (Anacardiaceae), in the Mediterranean climate of southern Chile was evaluated and compared to that of the congeneric C. cf. duvauae (Scott) from Brazil and closely related host plant S. engleri in a subtropical climate. Anatomical, histometric, histochemical and vegetative phenology studies of the stem and galls were conducted from June 2015 to December 2016. Based on the anatomical, histometric and histochemical analysis, the conical stem gall traits imply gains over the non-galled stem toward the galling insect survival, but the maintenance of phellem, secretory ducts and pith indicate conservative developmental traits that cannot be manipulated by C. rubra. Our results indicate that the conditions of the Mediterranean climate zone limit C. rubra immature activity during unfavourable periods, probably determining a diapause period and a univoltine life cycle, which are peculiarities of the S. polygama- C. rubra system. The synchronisation between development and seasonality confers peculiarities to the S. polygama- C. rubra system in the Mediterranean climate zone. PMID- 29350453 TI - Late Cretaceous marine arthropods relied on terrestrial organic matter as a food source: Geochemical evidence from the Coon Creek Lagerstatte in the Mississippi Embayment. AB - The Upper Cretaceous Coon Creek Lagerstatte of Tennessee, USA, is known for its extremely well-preserved mollusks and decapod crustaceans. However, the depositional environment of this unit, particularly its distance to the shoreline, has long been equivocal. To better constrain the coastal proximity of the Coon Creek Formation, we carried out a multiproxy geochemical analysis of fossil decapod (crab, mud shrimp) cuticle and associated sediment from the type section. Elemental analysis and Raman spectroscopy confirmed the presence of kerogenized carbon in the crabs and mud shrimp; carbon isotope (delta13 C) analysis of bulk decapod cuticle yielded similar mean delta13 C values for both taxa (-25.10/00 and -260/00, respectively). Sedimentary biomarkers were composed of n-alkanes from C16 to C36 , with the short-chain n-alkanes dominating, as well as other biomarkers (pristane, phytane, hopanes). Raman spectra and biomarker thermal maturity indices suggest that the Coon Creek Formation sediments are immature, which supports retention of unaltered, biogenic isotopic signals in the fossil organic carbon remains. Using our isotopic results and published calcium carbonate delta13 C values, we modeled carbon isotope values of carbon sources in the Coon Creek Formation, including potential marine (phytoplankton) and terrestrial (plant) dietary sources. Coon Creek Formation decapod delta13 C values fall closer to those estimated for terrigenous plants than marine phytoplankton, indicating that these organisms were feeding primarily on terrigenous organic matter. From this model, we infer that the Coon Creek Formation experienced significant terrigenous organic matter input via a freshwater source and thus was deposited in a shallow, nearshore marine environment proximal to the shoreline. This study helps refine the paleoecology of nearshore settings in the Mississippi Embayment during the global climatic shift in the late Campanian-early Maastrichtian and demonstrates for the first time that organic delta13 C signatures in exceptionally preserved fossil marine arthropods are a viable proxy for use in paleoenvironmental reconstructions. PMID- 29350454 TI - Patterns of Internet-based health information seeking in adult survivors of childhood cancer. AB - BACKGROUND: To assess where, when, and why survivors of childhood cancer seek health information. PROCEDURE: Data from the Childhood Cancer Survivor Study (CCSS) cohort (n = 1386) and Health Information National Trends Survey (n = 2385) were analyzed to determine the health information seeking strategies of childhood cancer survivors. Descriptive frequencies, chi2 analyses, t-tests, and multivariable logistic regression models were used. RESULTS: To seek health related information for themselves, 54% (n = 742) of the childhood survivors reported using the Internet in the past 12 months, compared to 45% of the general population (adjusted OR: 2.76; 95% CI: 2.40-3.19). Childhood cancer survivors who used the Internet for health information were more likely to be female, between the ages of 18-34, have received some college education or be a college graduate, and report being in poor health. Although survivors were less likely than the general population to trust health information from the Internet (P < 0.01), they indicated that they would like a secure website that uses information from their medical records to provide individualized health-related information. CONCLUSION: The use of the Internet to access health information among the childhood cancer survivors was over 50%. Information on late effects was a high priority for most survivors, as was their interest in websites related to late effects and a website on patient information tailored to personal situations. Identification of factors associated with searching the Internet for cancer information may provide direction for development of effective cancer communication interventions for this at-risk population. PMID- 29350455 TI - A novel prognostic six-CpG signature in glioblastomas. AB - AIMS: We aimed to identify a clinically useful biomarker using DNA methylation based information to optimize individual treatment of patients with glioblastoma (GBM). METHODS: A six-CpG panel was identified by incorporating genome-wide DNA methylation data and clinical information of three distinct discovery sets and was combined using a risk-score model. Different validation sets of GBMs and lower-grade gliomas and different statistical methods were implemented for prognostic evaluation. An integrative analysis of multidimensional TCGA data was performed to molecularly characterize different risk tumors. RESULTS: The six-CpG risk-score signature robustly predicted overall survival (OS) in all discovery and validation cohorts and in a treatment-independent manner. It also predicted progression-free survival (PFS) in available patients. The multimarker epigenetic signature was demonstrated as an independent prognosticator and had better performance than known molecular indicators such as glioma-CpG island methylator phenotype (G-CIMP) and proneural subtype. The defined risk subgroups were molecularly distinct; high-risk tumors were biologically more aggressive with concordant activation of proangiogenic signaling at multimolecular levels. Accordingly, we observed better OS benefits of bevacizumab-contained therapy to high-risk patients in independent sets, supporting its implication in guiding usage of antiangiogenic therapy. Finally, the six-CpG signature refined the risk classification based on G-CIMP and MGMT methylation status. CONCLUSIONS: The novel six-CpG signature is a robust and independent prognostic indicator for GBMs and is of promising value to improve personalized management. PMID- 29350456 TI - A prospective study of family predictors of health-related quality of life in pediatric brain tumor survivors. AB - BACKGROUND: The objective of this study was to examine prospectively the associations between family functioning at the end of tumor-directed treatment and the health-related quality of life (HRQL) of pediatric brain tumor survivors (PBTSs) approximately 9 months later. PROCEDURE: Thirty-five PBTS (age 6-16 years) and their mothers completed measures of family functioning and survivor HRQL within 5 months of completing tumor-directed therapy (baseline) and again approximately 9 months later (follow-up). RESULTS: Survivor-rated general family functioning at baseline significantly predicted mother proxy- and self-reported survivor HRQL at follow-up when controlling for survivor HRQL at baseline and relevant demographic and treatment-related variables. CONCLUSIONS: Family functioning is a key factor contributing to survivor HRQL and should be screened throughout the course of tumor-directed treatment. Psychosocial interventions directed toward improving general family functioning may improve survivor well being following the completion of treatment. PMID- 29350457 TI - Improved outcome at end of treatment in the collaborative Wilms tumour Africa project. AB - BACKGROUND: The Collaborative Wilms Tumour (WT) Africa Project has implemented an adapted WT treatment guideline in sub-Saharan Africa as a multi-centre prospective clinical trial. A retrospective, baseline evaluation of end-of treatment outcome was performed for a 2-year period prior to the introduction of this guideline. The collaborative project aims to reduce both treatment abandonment and death during treatment to less than 10% for improving survival. PROCEDURE: All participating centres obtained local Institutional Research Board (IRB) approval and implemented the adapted WT treatment guideline. End-of treatment outcome was documented for 2 years. It was divided into alive without evidence of disease, treatment abandonment, death during treatment and persistent disease. The outcome of children enroled in the first 2 years of the prospective clinical trial has been compared to the outcome before the start of the project. RESULTS: One hundred twenty-two patients were included in the baseline evaluation (2011-2012) and 133 in the first 2 years of the collaborative clinical trial (2014-2015). The percentage of patients alive without evidence of disease at the end of treatment increased from 52% (63/122) to 68% (90/133; P = 0.01). Treatment abandonment decreased from 23% (28/122) to 13% (17/133; P = 0.03). Death during treatment decreased from 21% (26/122) to 13% (17/133; P = 0.07). CONCLUSION: This collaboration, using relatively simple and low-cost interventions, led to a significant decrease in treatment abandonment and increase in survival without evidence of disease at the end of treatment. PMID- 29350458 TI - Der-Cherng Liang, MD, 1947-2017. PMID- 29350459 TI - NOURISH-T: Targeting caregivers to improve health behaviors in pediatric cancer survivors with obesity. AB - BACKGROUND: Obesity rates in pediatric cancer survivors (PCS) are alarmingly high. Although healthy lifestyle changes may prevent future health complications, promoting healthy behaviors in PCS is challenging, and few interventions have successfully addressed this issue. PROCEDURE: This randomized control trial evaluated the feasibility and preliminary effectiveness of a parent-focused six session intervention, NOURISH-T (Nourishing Our Understanding of Role Modeling to Improve Support and Health for Healthy Transitions), compared with enhanced usual care (EUC) on the outcomes of caregiver and PCS anthropometric measurements, eating behaviors, and physical activity. Behavioral and self-report assessments of caregivers and PCS in both conditions were conducted at baseline, postintervention, and at a 4-month follow-up. RESULTS: In comparison to no change among EUC caregivers, NOURISH-T caregivers showed small yet significant decreases from baseline through follow-up on BMI, waist-hip ratio, and total daily caloric intake. However, there was no change with regard to daily fat and sugar intake. NOURISH-T caregivers also showed positive changes in their child feeding behaviors, including decreases in pressuring their child to eat and restricting their child's eating and increased eating together as a family. Similarly, decreases in BMI percentile, waist-hip ratio, and sugary beverage consumption were found for NOURISH-T PCS from baseline to postintervention. NOURISH-T PCS also significantly increased their daily steps, whereas EUC PCS decreased their daily steps. CONCLUSIONS: Results suggest that an intervention targeting parents is feasible and demonstrates preliminary effectiveness. NOURISH-T showed a longer term effect on caregivers, and, although shorter term effect, a positive impact on the PCS themselves. Implications for ways to improve NOURISH-T as an intervention for increasing healthy behaviors of PCS are discussed. PMID- 29350460 TI - Three-generation family with novel contiguous gene deletion on chromosome 2p22 associated with thoracic aortic aneurysm syndrome. AB - Latent transforming growth factor binding proteins (LTBP) are a family of extracellular matrix glycoproteins that play an important role in the regulation of transforming growth factor beta (TGF-beta) activation. Dysregulation of the TGF-beta pathway has been implicated in the pathogenesis of inherited disorders predisposing to thoracic aortic aneurysms syndromes (TAAS) including Marfan syndrome (MFS; FBN1) and Loeys-Dietz syndrome (LDS; TGFBR1, TGFBR2, TGFB2, TGFB3, SMAD2, SMAD3). While these syndromes have distinct clinical criteria, they share clinical features including aortic root dilation and musculoskeletal findings. LTBP1 is a component of the TGF-beta pathway that binds to fibrillin-1 in the extracellular matrix rendering TGF-beta inactive. We describe a three-generation family case series with a heterozygous ~5.1 Mb novel contiguous gene deletion of chromosome 2p22.3-p22.2 involving 11 genes, including LTBP1. The deletion has been identified in the proband, father and grandfather, who all have a phenotype consistent with a TAAS. Findings include thoracic aortic dilation, ptosis, malar hypoplasia, high arched palate, retrognathia, pes planus, hindfoot deformity, obstructive sleep apnea, and low truncal tone during childhood with joint laxity that progressed to reduced joint mobility over time. While the three affected individuals did not meet criteria for either MFS or LDS, they shared features of both. Although the deletion includes 11 genes, given the relationship between LTBP1, TGF-beta, and fibrillin-1, LTBP1 stands out as one of the possible candidate genes for the clinical syndrome observed in this family. More studies are necessary to evaluate the potential role of LTBP1 in the pathophysiology of TAAS. PMID- 29350461 TI - Is testicular irradiation necessary for patients with acute lymphoblastic leukemia and testicular relapse? PMID- 29350462 TI - Mesoaortic compression of a left-sided inferior vena-cava presenting as recurrent pulmonary embolism in a child-a novel anatomic thrombophilia? PMID- 29350463 TI - BRIM-P: A phase I, open-label, multicenter, dose-escalation study of vemurafenib in pediatric patients with surgically incurable, BRAF mutation-positive melanoma. AB - BACKGROUND: Vemurafenib, a selective inhibitor of BRAF kinase, is approved for the treatment of adult stage IIIc/IV BRAF V600 mutation-positive melanoma. We conducted a phase I, open-label, dose-escalation study in pediatric patients aged 12-17 years with this tumor type (NCT01519323). PROCEDURE: Patients received vemurafenib orally until disease progression. Dose escalation was conducted using a 3 + 3 design. Patients were monitored for dose-limiting toxicities (DLTs) during the first 28 days of treatment to determine the maximum tolerated dose (MTD). Safety/tolerability, tumor response, and pharmacokinetics were evaluated. RESULTS: Six patients were enrolled (720 mg twice daily [BID], n = 3; 960 mg BID [n = 3]). The study was terminated prematurely due to low enrollment. No DLTs were observed; thus, the MTD could not be determined. All patients experienced at least one adverse event (AE); the most common were diarrhea, headache, photosensitivity, rash, nausea, and fatigue. Three patients experienced serious AEs, one patient developed secondary cutaneous malignancies, and five patients died following disease progression. Mean steady-state plasma concentrations of vemurafenib following 720 mg and 960 mg BID dosing were similar or higher, respectively, than in adults. There were no objective responses. Median progression-free survival and overall survival were 4.4 months (95% confidence interval [CI] = 2.7-5.2) and 8.1 months (95% CI = 5.1-12.0), respectively. CONCLUSIONS: A recommended and effective dose of vemurafenib for patients aged 12 17 years with metastatic or unresectable melanoma was not identified. Extremely low enrollment in this trial highlights the importance of considering the inclusion of adolescents with adult cancers in adult trials. PMID- 29350464 TI - Predictors of response, progression-free survival, and overall survival using NANT Response Criteria (v1.0) in relapsed and refractory high-risk neuroblastoma. AB - PURPOSE: The New Approaches to Neuroblastoma Therapy Response Criteria (NANTRC) were developed to optimize response assessment in patients with recurrent/refractory neuroblastoma. Response predictors and associations of the NANTRC version 1.0 (NANTRCv1.0) and prognostic factors with outcome were analyzed. METHODS: A retrospective analysis was performed of patients with recurrent/refractory neuroblastoma enrolled from 2000 to 2009 on 13 NANT Phase 1/2 trials. NANTRC overall response integrated CT/MRI (Response Evaluation Criteria in Solid Tumors [RECIST]), metaiodobenzylguanidine (MIBG; Curie scoring), and percent bone marrow (BM) tumor (morphology). RESULTS: Fourteen (6.9%) complete response (CR) and 14 (6.9%) partial response (PR) occurred among 203 patients evaluable for response. Five-year progression-free survival (PFS) was 16 +/- 3%; overall survival (OS) was 27 +/- 3%. Disease sites at enrollment included MIBG-avid lesions (100% MIBG trials; 84% non-MIBG trials), measurable CT/MRI lesions (48%), and BM (49%). By multivariable analysis, Curie score of 0 (P < 0.001), lower Curie score (P = 0.003), no measurable CT/MRI lesions (P = 0.044), and treatment on peripheral blood stem cell (PBSC) supported trials (P = 0.005) were associated with achieving CR/PR. Overall response of stable disease (SD) or better was associated with better OS (P < 0.001). In multivariable analysis, MYCN amplification (P = 0.037) was associated with worse PFS; measurable CT/MRI lesions (P = 0.041) were associated with worse OS; prior progressive disease (PD; P < 0.001/P < 0.001), Curie score >= 1 (P < 0.001; P = 0.001), higher Curie score (P = 0.048/0.037), and treatment on non-PBSC trials (P = < 0.001/0.003) were associated with worse PFS and OS. CONCLUSIONS: NANTRCv1.0 response of at least SD is associated with better OS in patients with recurrent/refractory neuroblastoma. Patient and tumor characteristics may predict response and outcome. Identifying these variables can optimize Phase 1/2 trial design to select novel agents for further testing. PMID- 29350465 TI - Proteomics Analysis of Skeletal Muscle from Leptin-Deficient ob/ob Mice Reveals Adaptive Remodeling of Metabolic Characteristics and Fiber Type Composition. AB - Skeletal muscle insulin resistance, an early metabolic defect in the pathogenesis of type 2 diabetes (T2D), may be a cause or consequence of altered protein expression profiles. Proteomics technology offers enormous promise to investigate molecular mechanisms underlying pathologies, however, the analysis of skeletal muscle is challenging. Using state-of-the-art multienzyme digestion and filter aided sample preparation (MED-FASP) and a mass spectrometry (MS)-based workflow, we performed a global proteomics analysis of skeletal muscle from leptin deficient, obese, insulin resistant (ob/ob) and lean mice in mere two fractions in a short time (8 h per sample). We identified more than 6000 proteins with 118 proteins differentially regulated in obesity. This included protein kinases, phosphatases, and secreted and fiber type associated proteins. Enzymes involved in lipid metabolism in skeletal muscle from ob/ob mice were increased, providing evidence against reduced fatty acid oxidation in lipid-induced insulin resistance. Mitochondrial and peroxisomal proteins, as well as components of pyruvate and lactate metabolism, were increased. Finally, the skeletal muscle proteome from ob/ob mice displayed a shift toward the "slow fiber type." This detailed characterization of an obese rodent model of T2D demonstrates an efficient workflow for skeletal muscle proteomics, which may easily be adapted to other complex tissues. PMID- 29350466 TI - Simultaneous extraction and determination of trace amounts of diclofenac from whole blood using supported liquid membrane microextraction and fast Fourier transform voltammetry. AB - A novel, simple, and inexpensive analytical technique based on flat sheet supported liquid membrane microextraction coupled with fast Fourier transform stripping cyclic voltammetry on a reduced graphene oxide carbon paste electrode was used for the extraction and online determination of diclofenac in whole blood. First, diclofenac was extracted from blood samples using a polytetrafluoroethylene membrane impregnated with 1-octanol and then into an acceptor solution, subsequently it was oxidized on a carbon paste electrode modified with reduced graphene oxide nanosheets. The optimal values of the key parameters influencing the method were as follows: scan rate, 6 V/s; stripping potential, 200 mV; stripping time, 5 s; pH of the sample solution, 5; pH of the acceptor solution,7; and extraction time, 240 min. The calibration curves were plotted for the whole blood samples and the method was found to have a good linearity within the range of 1-25 MUg/mL with a determination coefficient of 0.99. The limits of detection and quantification were 0.1 and 1.0 MUg/mL, respectively. Using this coupled method, the extraction and determination were merged into one step. Accordingly, the speed of detection for sensitive determination of diclofenac in complex samples, such as blood, increased considerably. PMID- 29350467 TI - Alveolar soft part sarcoma in children and young adults: A report of 69 cases. AB - BACKGROUND: Alveolar soft part sarcoma (ASPS) is a rare mesenchymal tumor characterized by ASPL-TFE3 translocation. Apart from complete surgical resection, there is no standard management strategy. PROCEDURE: The clinical data of 69 children and young adults less than 30 years old with ASPS diagnosed from 1980 2014 were retrospectively collected from four major institutions. RESULTS: Median age at diagnosis was 17 years (range: 1.5-30). Forty-four (64%) were female. Median follow-up was 46 months (range: 1-409). Most common primary sites were limbs (58%) and trunk (24%). ASPL-TFE3 translocation was present in all 26 patients tested. IRS postsurgical staging was I in 19 (28%), II in 7 (10%), III in 5 (7%), and IV in 38 (55%) patients. The 5-year event-free survival (EFS) and overall survival (OS) were 38% and 72%, respectively. The 5-year EFS and OS were 80% and 87%, respectively, for the 31 patients with localized tumors (IRS-I-II III), and 7% and 61%, respectively, for the 38 patients with metastatic tumors (IRS-IV). Of 11 IRS-IV patients who received targeted therapy upfront, two had partial response, six had stable disease, and three had progressive disease. Median time to progression for IRS-IV patients was 12 months for those treated with targeted therapy, 7 months for cytotoxic chemotherapy (N = 15), and 4 months for observation only (N = 6). CONCLUSION: Localized ASPS has a good prognosis after gross total resection. ASPS is resistant to cytotoxic chemotherapy. Although there are no curative therapies for patients with metastatic disease, prolonged disease stabilization may be achieved with targeted therapies. PMID- 29350469 TI - In vitro to in vivo benchmark dose comparisons to inform risk assessment of quantum dot nanomaterials. AB - Engineered nanomaterials are currently under review for their potential toxicity; however, their use in consumer/commercial products has continued to outpace risk assessments. In vitro methods may be utilized as tools to improve the efficiency of risk assessment approaches. We propose a framework to compare relationships between previously published in vitro and in vivo toxicity assessments of cadmium selenium containing quantum dots (QDs) using benchmark dose (BMD) and dosimetric assessment methods. Although data were limited this approach was useful for identifying sensitive assays and strains. In vitro studies assessed effects of QDs in three pulmonary cell types across two mouse strains. Significant dose response effects were modeled and a standardized method of BMD analysis was performed as a function of both exposure dose and dosimetric dose. In vivo studies assessed pulmonary effects of QD exposure across eight mouse strains. BMD analysis served as a basis for relative comparison with in vitro studies. We found consistent responses in common endpoints between in vitro and in vivo studies. Strain sensitivity was consistent between in vitro and in vivo studies, showing A/J mice more sensitive to QDs. Cell types were found to differentially take up QDs. Dosimetric adjustments identified similar sensitivity among cell types. Thus, BMD analysis can be used as an effective tool to compare the sensitivity of different strains, cell types, and assays to QDs. These methods allow for in vitro assays to be used to predict in vivo responses, improve the efficiency of in vivo studies, and allow for prioritization of nanomaterial assessments. This article is categorized under: Toxicology and Regulatory Issues in Nanomedicine > Toxicology of Nanomaterials Toxicology and Regulatory Issues in Nanomedicine > Regulatory and Policy Issues in Nanomedicine. PMID- 29350470 TI - Specific expression of PD-L1 in RELA-fusion supratentorial ependymoma: Implications for PD-1-targeted therapy. AB - BACKGROUND: A desperate need for novel therapies in pediatric ependymoma (EPN) exists, as chemotherapy remains ineffective and radiotherapy often fails. EPN have significant infiltration of immune cells, which correlates with outcome. Immune checkpoint inhibitors provide an avenue for new treatments. This study characterizes tumor-infiltrating immune cells in EPN and aims at predicting candidates for clinical trials using checkpoint inhibitors targeting PD-L1/PD-1 (programmed death ligand 1/programmed death 1). METHODS: The transcriptomic profiles of the primary study cohort of EPN and other pediatric brain tumors were interrogated to identify PD-L1 expression levels. Transcriptomic findings were validated using the western blotting, immunohistochemistry and flow cytometry. RESULTS: We evaluated PD-L1 mRNA expression across four intracranial subtypes of EPN in two independent cohorts and found supratentorial RELA fusion (ST-RELA) tumors to have significantly higher levels. There was a correlation between high gene expression and protein PD-L1 levels in ST-RELA tumors by both the western blot and immunohistochemisty. The investigation of EPN cell populations revealed PD-L1 was expressed on both tumor and myeloid cells in ST-RELA. Other subtypes had little PD-L1 in either tumor or myeloid cell compartments. Lastly, we measured PD-1 levels on tumor-infiltrating T cells and found ST-RELA tumors express PD-1 in both CD4 and CD8 T cells. A functional T-cell exhaustion assay found ST-RELA T cells to be exhausted and unable to secrete IFNgamma on stimulation. CONCLUSIONS: These findings in ST-RELA suggest tumor evasion and immunsuppression due to PD-L1/PD-1-mediated T-cell exhaustion. Trials of checkpoint inhibitors in EPN should be enriched for ST-RELA tumors. PMID- 29350471 TI - Variability Assessment of 90 Salivary Proteins in Intraday and Interday Samples from Healthy Donors by Multiple Reaction Monitoring-Mass Spectrometry. AB - PURPOSE: Saliva is an attractive sample source for the biomarker-based testing of several diseases, especially oral cancer. Here, we sought to apply multiplexed LC MRM-MS to precisely quantify 90 disease-related proteins and assess their intra- and interindividual variability in saliva samples from healthy donors. EXPERIMENTAL DESIGN: We developed two multiplexed LC-MRM-MS assays for 122 surrogate peptides representing a set of disease-related proteins. Saliva samples were collected from 10 healthy volunteers at three different time points (Day 1 morning and afternoon, and Day 2 morning). Each sample was spiked with a constant amount of a 15 N-labeled protein and analyzed by MRM-MS in triplicate. Quantitative results from LC-MRM-MS were calculated by single-point quantification with reference to a known amount of internal standard (heavy peptide). RESULTS: The CVs for assay reproducibility and technical variation were 13 and 11%, respectively. The average concentrations of the 99 successfully quantified proteins ranged from 0.28 +/- 0.58 ng mL-1 for profilin-2 (PFN2) to 8.55 +/-8.96 MUg mL-1 for calprotectin (S100A8). For the 90 proteins detectable in >50% of samples, the average CVs for intraday, interday, intraindividual, and interindividual samples were 38%, 43%, 45%, and 69%, respectively. The fluctuations of most target proteins in individual subjects were found to be within +/- twofold. CONCLUSIONS AND CLINICAL RELEVANCE: Our study elucidated the intra- and interindividual variability of 90 disease-related proteins in saliva samples from healthy donors. The findings may facilitate the further development of salivary biomarkers for oral and systemic diseases. PMID- 29350473 TI - 2018: An update on JOPM progress over the last year. PMID- 29350472 TI - The chemistry and pharmacology of synthetic cannabinoid SDB-006 and its regioisomeric fluorinated and methoxylated analogs. AB - Synthetic cannabinoids are the largest and most structurally diverse class of new psychoactive substances, with manufacturers often using isomerism to evade detection and circumvent legal restriction. The regioisomeric methoxy- and fluorine-substituted analogs of SDB-006 (N-benzyl-1-pentyl-1H-indole-3 carboxamide) were synthesized and could not be differentiated by gas chromatography-mass spectrometry (GC-MS), but were distinguishable by liquid chromatography-quadrupole time-of-flight-MS (LC-QTOF-MS). In a fluorescence-based plate reader membrane potential assay, SDB-006 acted as a potent agonist at human cannabinoid receptors (CB1 EC50 = 19 nM). All methoxy- and fluorine-substituted analogs showed reduced potency compared to SDB-006, although the 2-fluorinated analog (EC50 = 166 nM) was comparable to known synthetic cannabinoid RCS-4 (EC50 = 146 nM). Using biotelemetry in rats, SDB-006 and RCS-4 evoked comparable reduction in body temperature (~0.7 degrees C at a dose of 10 mg/kg), suggesting lower potency than the recent synthetic cannabinoid AB-CHMINACA (>2 degrees C, 3 mg/kg). PMID- 29350474 TI - Happy Times for the Macromolecular Journals. PMID- 29350475 TI - Water deficit disrupts male gametophyte development in Quercus ilex. AB - Tree species distribution, and hence forest biodiversity, relies on the reproductive capacity of trees, which is currently affected by climate change. Drought-induced pollen sterility could increase as a consequence of more intense and more frequent droughts projected for temperate and Mediterranean regions, and threaten the sexual regeneration of trees in these regions. To evaluate this possibility, we examined the effect of long-term partial rainfall exclusion (-27% precipitation) on male reproductive development in holm oak, Quercus ilex, one of the most important and widespread tree species of the Mediterranean region. We examined anther area, pollen production, pollen abortion as well as viable pollen production in control and dry treatments. Microscopic examinations revealed significant differences in pollen development between trees in the dry and the control treatments, even though anthesis occurred before the onset of annual drought. Our results demonstrate that anthers collected from Q. ilex trees in the dry treatment, which experienced long-term increased drought stress especially during the summer, were the same size as anthers in the control treatment, but displayed 25% pollen abortion and almost 20% reduction in pollen production. Subsequently, the number of viable pollen grains in anthers from dry treatment was 35% less than in control. These results suggest a carry-over effect of drought stress on pollen production that could reduce the reproductive success of Q. ilex. The results have broad implications for better understanding of the determinants of tree reproduction by masting and anticipate the outcomes of expected drought increase in the Mediterranean on forest dynamics. PMID- 29350477 TI - Pharmacokinetic evaluation and safety of topical 1% morphine sulfate application on the healthy equine eye. AB - OBJECTIVE: To determine if corneal epithelial cell integrity is detrimentally affected by short-term administration of 1.0% morphine sulfate. Additionally, we sought to determine if topical 1.0% morphine applied to the equine cornea would result in ocular or systemic absorption. ANIMAL STUDIED: Six healthy horses. PROCEDURE: Morphine sulfate (1.0%) was applied topically to one eye every four hours for 72 h before horses were euthanized. Serum samples were collected at varying time points during the study and aqueous and vitreous humor were collected immediately after euthanasia. Morphine quantification in serum, aqueous, and vitreous humor was performed by ELISA. Treated and control corneas were submitted for histopathology. Horses were monitored for adverse ocular and systemic effects throughout the study period. RESULTS: All horses developed mild mucoid ocular discharge in the treated eye. One horse developed a fever during treatment. Morphine was detected in the aqueous humor of the treated eye for all horses with mean +/- standard deviation of 165.18 ng/mL +/- 87.69 ng/mL. Morphine was detected in vitreous humor of the treated eye of 5 of 6 horses with mean +/- standard deviation of 4.87 +/- 4.46 ng/mL. Morphine was detected in the serum of 5 of 6 horses at varying time points. Maximum systemic concentration reached in a single horse was 6.98 ng/mL. Corneal histopathology revealed no difference in microscopic appearance between morphine-treated and control corneas. CONCLUSIONS: Topical administration of 1.0% morphine sulfate did not appear to cause any significant ocular or systemic adverse effects. Topical ophthalmic morphine application resulted in both ocular and systemic absorption. PMID- 29350476 TI - Investigating the mechanisms underlying phytoprotection by plant growth-promoting rhizobacteria in Spartina densiflora under metal stress. AB - Pollution of coasts by toxic metals and metalloids is a worldwide problem for which phytoremediation using halophytes and associated microbiomes is becoming relevant. Metal(loid) excess is a constraint for plant establishment and development, and plant growth promoting rhizobacteria (PGPR) mitigate plant stress under these conditions. However, mechanisms underlying this effect remain elusive. The effect of toxic metal(loid)s on activity and gene expression of ROS scavenging enzymes in roots of the halophyte Spartina densiflora grown on real polluted sediments in a greenhouse experiment was investigated. Sediments of the metal-polluted joint estuary of Tinto and Odiel rivers and control, unpollutred samples from the Piedras estuary were collected and submitted to ICP-OES. Seeds of S. densiflora were collected from the polluted Odiel marshes and grown in polluted and unpolluted sediments. Rhizophere biofilm-forming bacteria were selected based on metal tolerance and inoculated to S. densiflora and grown for 4 months. Fresh or frozen harvested plants were used for enzyme assays and gene expression studies, respectively. Metal excess induced SOD (five-fold increase), whereas CAT and ascorbate peroxidase displayed minor induction (twofold). A twofold increase of TBARs indicated membrane damage. Our results showed that metal-resistant PGPR (P. agglomerans RSO6 and RSO7 and B. aryabhattai RSO25) contributed to alleviate metal stress, as deduced from lower levels of all antioxidant enzymes to levels below those of non-exposed plants. The oxidative stress index (OSI) decreased between 50 and 75% upon inoculation. The results also evidenced the important role of PAL, involved in secondary metabolism and/or lignin synthesis, as a pathway for metal stress management in this halophyte upon inoculation with appropriate PGPR, since the different inoculation treatments enhanced PAL expression between 3.75- and five-fold. Our data confirm, at the molecular level, the role of PGPR in alleviating metal stress in S. densiflora and evidence the difficulty of working with halophytes for which little genetic information is available. PMID- 29350478 TI - Enzymatic scarification of Anacamptis morio (Orchidaceae) seed facilitates lignin degradation, water uptake and germination. AB - The seed coat of many species contains hydrophobic lignins, and in soil the action of microbial ligninases may contribute to release from dormancy. Laboratory use of ligninases to stimulate germination is promising because of the specific action on the seed coat, whereas chemical scarification agents may also corrode the embryo. We hypothesised that exposure of Anacamptis morio (Orchidaceae) seeds to fungal laccase would stimulate germination, and that the mechanism involves lignin degradation and increased imbibition. Germination capacity in vitro was quantified with 1 U filter-sterilised laccase added to agar medium following autoclaving, compared to a 10% bleach solution (standard bleach surface sterilisation/scarification method used in orchid seed sowing). Lignin degradation was quantified using an optical method (phloroglucinol-HCl staining) combined with image analysis, following experimental pre-treatments involving immersion in laccase solution, distilled water (negative control) or bleach (positive control). Water uptake after experimental treatments was quantified as the proportion of seeds exhibiting visible uptake of an aqueous fluorochrome under UV excitation. Laccase stimulated a doubling of germination in vitro with respect to bleach surface sterilisation/scarification alone, from 23.7 to 49.8% (P = 0.007). Laccase and bleach methods both significantly decreased the optical signal of phloroglucinol (for laccase, to 79.9 +/- 1.3% of controls; anova: F = 10.333, P = 0.002). Laccase resulted in a modest but highly significant (P < 0.0001) increase in water uptake with respect to the control (11.7%; cf 99.4% for bleach). Laccase scarification can stimulate germination of A. morio through a mechanism of targeted seed coat degradation. The results demonstrate the potential of this relatively non-invasive enzymatic scarification technique. PMID- 29350479 TI - Solution Processable 1D Fullerene C60 Crystals for Visible Spectrum Photodetectors. AB - Visible spectrum photodetector devices fabricated using molecular crystals of carbon C60 are reported. The devices operate efficiently, extending over and beyond the full visible light spectrum (300-710 nm) with a bias voltage tunable responsivity of 4 mA-0.5 mA W-1 . Across this range of wavelengths, the noise equivalent power of these devices remains below 102 nW Hz-1/2 , providing a detectivity of 107 Jones. The noise current in these devices is found to have a strong dependence on both bias voltage and frequency, varying by 4 orders of magnitude from 1 nA Hz-1/2 to 0.1 pA Hz-1/2 . The devices also display a near linear dependence of photocurrent on light intensity over 4 orders of magnitude, providing a dynamic range approaching 80 dB. The 3 dB bandwidth of the devices is found to be above 102 Hz, while the 18 dB bandwidth exceeds 1 kHz. The transient photocurrents of the devices have a rise time of ~50 us and a long fall time of ~4 ms. The spectral photocurrent of the devices is found to quench gradually with a reduction in temperature from ~300 K and is fully quenched at temperatures below T ~ 100 K. Upon reheating, the device performance is fully recovered. PMID- 29350480 TI - Unilateral Wilms tumor: The relevance of pre- and postnephrectomy evaluation of renal function. PMID- 29350481 TI - Emotion regulation and positive affect in the context of salivary alpha-amylase response to pain in children with cancer. AB - BACKGROUND: Children with cancer routinely undergo painful medical procedures invoking strong physiological stress responses. Resilience to this pain may be conferred through resources such as emotion regulation strategies and positive affect. PROCEDURE: This study measured dispositional positive affect in children with cancer (N = 73) and randomly assigned participants to one of three emotion regulation strategy conditions (distraction, reappraisal, or reassurance). Children applied their assigned strategy during an experimental pain procedure (the cold pressor task [CPT]) and provided saliva samples before, immediately after, and 15 min after the CPT. Saliva samples were later assayed for salivary alpha amylase (sAA)-a surrogate marker for autonomic/sympathetic nervous system activity and regulation. RESULTS: Children in the reassurance group had sAA levels that continued to rise after completion of the CPT compared to children in the distraction (b = -1.68, P = 0.021) and reappraisal conditions (b = -1.24, P = 0.084). Furthermore, dispositional positive affect moderated the effect of condition such that children in the reassurance group with lower levels of positive affect had sAA levels that continued to rise after completion of the CPT (dy/dx = 1.56, P = 0.027), whereas children in the reassurance condition with higher levels of positive affect did not exhibit this rise (P > 0.05). CONCLUSIONS: Specific emotion regulation strategies, such as distraction and reappraisal, may attenuate the stress response to pain in pediatric patients with cancer, and positive affect may confer resilience in response to pain even with use of less effective coping strategies such as reassurance. PMID- 29350482 TI - Erratum. PMID- 29350483 TI - Robert F. Schmidt Ph.D., Prof. Dr. med. D. Sc. h.c. 1932-2017 Facets of a life for science. PMID- 29350484 TI - Paraptosis-Inducing Nanomedicine Overcomes Cancer Drug Resistance for a Potent Cancer Therapy. AB - Most chemotherapeutic drugs and their nanomedicine formulations exert anticancer activity by inducing cancer cell apoptosis. However, cancer cells inherently have and acquire many antiapoptosis mechanisms, causing cancer drug resistance and poor prognoses in patients. Herein, a potent paraptosis-inducing nanomedicine is reported that causes quick nonapoptotic death of cancer cells, overcoming apoptosis-based resistance and effectively inhibiting drug-resistant tumor growth. The nanomedicine is composed of micelles made from an amphiphilic 8 hydroxyquinoline (HQ)-conjugate block copolymer with polyethylene glycol. Cu2+ can catalyze the hydrolysis of the HQ conjugation linker and liberate HQ, and these molecules can form the complex Cu(HQ)2 , a strong proteasome inhibitor effective at inducing cell paraptosis. In vivo, the Cu2+ -responsive HQ-releasing micelles respond to elevated tumor Cu2+ levels or externally administered Cu2+ and effectively inhibit the growth of human breast adenocarcinoma doxorubicin resistant (MCF-7/ADR) tumors. Compared with other nanomedicines that overcome drug resistance via delivering several agents or even siRNA, this paraptosis inducing nanomedicine provides a simple but potent approach to overcoming cancer drug resistance. PMID- 29350485 TI - Purification of glutathione S-transferase enzyme from quail liver tissue and inhibition effects of (3aR,4S,7R,7aS)-2-(4-((E)-3-(aryl)acryloyl)phenyl) 3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindole-1,3(2H)-dione derivatives on the enzyme activity. AB - The use of quail meat and eggs has made this animal important in recent years, with its low cost and high yields. Glutathione S-transferases (GST, E.C.2.5.1.18) are an important enzyme family, which play a critical role in detoxification system. In our study, GST was purified from quail liver tissue with 47.88-fold purification and 12.33% recovery by glutathione agarose affinity chromatography. The purity of enzyme was checked by SDS-PAGE method and showed a single band. In addition, inhibition effects of (3aR,4S,7R,7aS)-2-(4-((E)-3 (aryl)acryloyl)phenyl)-3a,4,7,7a-tetrahydro-1H-4,7methanoisoindole-1,3(2H)-dion derivatives (1a-g) were investigated on the enzyme activity. The inhibition parameters (IC50 and Ki values) were calculated for these compounds. IC50 values of these derivatives (1a-e) were found as 23.00, 15.75, 115.50, 10.00, and 28.75 MUM, respectively. Ki values of these derivatives (1a-e) were calculated in the range of 3.04 +/- 0.50 to 131.50 +/- 32.50 MUM. However, for f and g compounds, the inhibition effects on the enzyme were not found. PMID- 29350486 TI - Inflammatory response and treatment tolerance of long-term infusion of the anti GD2 antibody ch14.18/CHO in combination with interleukin-2 in patients with high risk neuroblastoma. AB - BACKGROUND: The monoclonal anti-GD2 antibody ch14.18/CHO in combination with IL-2 is active and effective in high-risk neuroblastoma (NB) patients. Here, we investigated the inflammatory response and treatment tolerance of long-term infusion (LTI) of ch14.18/CHO (10 * 10 mg/m2 ; 24 hr) in combination with subcutaneous (s.c.) IL-2 in a single center program. METHODS: Fifty-three NB patients received up to six cycles of 100 mg/m2 ch14.18/CHO (d8-18, where d represents day(s)) as LTI combined with 6 * 106 IU/m2 s.c. IL-2 (d1-5; 8-12) and 160 mg/m2 oral 13-cis retinoic acid (RA) (d19-32). Side effects of ch14.18/CHO and IL-2 treatment require hospitalization of patients on d8. Treatment tolerance was evaluated daily with clinical parameters (body temperature, vital signs, Lansky performance status, requirement of i.v. concomitant medication) to define an outpatient candidate status. sIL-2-R and C-reactive protein values were determined to assess the inflammatory response. RESULTS: LTI of ch14.18/CHO (d8 18) in combination with s.c.IL-2 (d8-12) showed an acceptable treatment tolerance that allowed all patients to receive part of the treatment as an outpatient (median time point of discharge: d15 for all cycles). The treatment tolerance improved from cycle to cycle and the time to become an outpatient candidate decreased from d15 to d13 in subsequent cycles. Clinical and laboratory parameters indicate a maximum inflammatory response at d11 of each cycle. Interestingly, the soluble IL-2 receptor remained increased at baseline of the next cycle indicating immune activation over the entire treatment period of 6 months. CONCLUSIONS: LTI of ch14.18/CHO combined with s.c.IL-2 shows an improved tolerance in subsequent cycles allowing outpatient treatment. PMID- 29350487 TI - Pediatric patients with cutaneous melanoma: A European study. AB - INTRODUCTION: Cutaneous melanoma is rare in childhood and published studies have mainly been retrospective single-institution series or small case series. Given the absence of clinical protocols dedicated to pediatric melanoma, the treatment approach is generally extrapolated from the ones applied to adults. METHODS: Coordinated by the European Cooperative Study Group for Pediatric Rare Tumors (EXPeRT), this study collected patients prospectively registered between 2002 and 2012 under national cooperative projects dedicated to rare pediatric tumors in Italy, Poland, Germany, and France. Additional cases were collected from dermatology registries in Germany and Israel. RESULTS: A total of 219 patients aged 0-18 years (median 14.4) were included in the analysis. Sentinel lymph node biopsy was performed in 112 patients (76% of those with Breslow thickness > 0.75 mm) and was positive in 37.5%. Systemic therapy was used in 33 cases. In stage III cases, survival rates were similar for patients who received (23 cases) or not (21 cases) adjuvant therapy. For the whole series, 3-year overall and disease free survival rates were 91.4% and 84.0%, respectively (median follow-up 41.8 months). Tumor site, tumor stage, and ulceration influenced survival rates. Patients treated by pediatric oncologists (n = 140) were more likely to have advanced disease than those treated by dermatologists (n = 79). DISCUSSION: This study would suggest that the clinical history of melanoma in children and adolescents might resemble that of adult counterpart. Cooperative efforts are needed to make new drugs more readily available to pediatric patients to increase the outcome of patient with advanced disease.